diff --git a/.gitmodules b/.gitmodules
index 9c7dc87aa6..c44a0bbf39 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -29,3 +29,6 @@ url=../tgcalls.git
 [submodule "third-party/dav1d/dav1d"]
 	path = third-party/dav1d/dav1d
 	url = https://github.com/ali-fareed/dav1d.git
+[submodule "third-party/td/td"]
+	path = third-party/td/td
+	url = https://github.com/tdlib/td
diff --git a/Telegram/Telegram-iOS/en.lproj/Localizable.strings b/Telegram/Telegram-iOS/en.lproj/Localizable.strings
index 2857455b4d..3c508b2d67 100644
--- a/Telegram/Telegram-iOS/en.lproj/Localizable.strings
+++ b/Telegram/Telegram-iOS/en.lproj/Localizable.strings
@@ -14115,3 +14115,70 @@ Sorry for the inconvenience.";
 "WebApp.ImportData.AccountHeader" = "ACCOUNT TO IMPORT DATA FROM";
 "WebApp.ImportData.CreatedOn" = "created on %@";
 "WebApp.ImportData.Import" = "Import";
+
+"CallList.ToastCallLinkCopied.Text" = "Call link copied";
+"CallList.ToastCallLinkCopied.Action" = "View Call";
+"CallList.NewCall" = "Start New Call";
+"CallList.NewCallLink" = "Create Call Link";
+
+"Chat.SendStarsToBecomeTopInfo" = "Send %@ or more to highlight your profile";
+
+"VideoChat.RevokeLink" = "Revoke Link";
+
+"InviteLink.GroupCallLinkHelp" = "Anyone on Telegram can join your call by following the link below.";
+"InviteLink.CallLinkTitle" = "Call Link";
+"InviteLink.CreatedGroupCallFooter" = "Be the first to join the call and add people from there. [Open Call >](open_call)";
+"InviteLink.QRCode.InfoGroupCall" = "Everyone on Telegram can scan this code to join your group call.";
+
+"Call.GenericGroupCallTitle" = "Group Call";
+
+"VideoChat.EncryptionKeyLabel" = "End-to-end encrypted";
+"VideoChat.EncryptionKeyText" = "These four emojis represent the call's encryption key. They must match for all participants and change when someone joins or leaves.";
+"VideoChat.EncryptionKeyDone" = "Close";
+"VideoChat.InviteMember" = "Add Member";
+
+"VideoChat.GroupCallTitle" = "Group Call";
+
+"Chat.ViewGroupCall" = "JOIN GROUP CALL";
+
+"NewCall.SearchPlaceholder" = "Search for contacts or usernames";
+"NewCall.VideoOption" = "Call with video enabled";
+"NewCall.ActionCallSingle" = "Call %@";
+"NewCall.ActionCallMultiple" = "Call";
+
+"Chat.ToastCallLinkExpired.Text" = "This link is no longer active";
+
+"Chat.CallMessage.GroupCallParticipantCount_1" = "1 person";
+"Chat.CallMessage.GroupCallParticipantCount_any" = "%d people";
+
+"Chat.CallMessage.DeclinedGroupCall" = "Declined Group Call";
+"Chat.CallMessage.MissedGroupCall" = "Missed Group Call";
+"Chat.CallMessage.CancelledGroupCall" = "Cancelled Group Call";
+"Chat.CallMessage.IncomingGroupCall" = "Incoming Group Call";
+"Chat.CallMessage.OutgoingGroupCall" = "Outgoing Group Call";
+
+"Invitation.GroupCall" = "Group Call";
+"Invitation.JoinGroupCall" = "Join Group Call";
+"Invitation.PublicGroup" = "public group";
+"Invitation.PrivateGroup" = "private group";
+
+"Invitation.GroupCall.Text" = "You are invited to join a group call.";
+
+"Invitation.Group.AlreadyJoinedSingle" = "**%@** already joined this group.";
+"Invitation.Group.AlreadyJoinedMultiple" = "%@ already joined this group.";
+"Invitation.Group.AlreadyJoinedMultipleWithCount_1" = "{} and **%d** other person already joined this group.";
+"Invitation.Group.AlreadyJoinedMultipleWithCount_any" = "{} and **%d** other people already joined this group.";
+
+"Invitation.GroupCall.AlreadyJoinedSingle" = "**%@** already joined this call.";
+"Invitation.GroupCall.AlreadyJoinedMultiple" = "%@ already joined this call.";
+"Invitation.GroupCall.AlreadyJoinedMultipleWithCount_1" = "{} and **%d** other person already joined this call.";
+"Invitation.GroupCall.AlreadyJoinedMultipleWithCount_any" = "{} and **%d** other people already joined this call.";
+
+"Call.ShareLink" = "Share Call Link";
+"Call.AddMemberTitle" = "Add Member";
+
+"Call.IncomingGroupCallTitle.Single" = "%@";
+"Call.IncomingGroupCallTitle.Multiple_1" = "{} and 1 other";
+"Call.IncomingGroupCallTitle.Multiple_any" = "{} and %d others";
+
+"GroupCall.RevokeLinkText" = "Are you sure you want to revoke this link? Once you do, no one will be able to join the call using it.";
diff --git a/submodules/AccountContext/Sources/ContactSelectionController.swift b/submodules/AccountContext/Sources/ContactSelectionController.swift
index 191e464c78..4b1ae89cca 100644
--- a/submodules/AccountContext/Sources/ContactSelectionController.swift
+++ b/submodules/AccountContext/Sources/ContactSelectionController.swift
@@ -99,6 +99,12 @@ public enum ContactListPeer: Equatable {
 }
 
 public final class ContactSelectionControllerParams {
+    public enum MultipleSelectionMode {
+        case disabled
+        case possible
+        case always
+    }
+    
     public let context: AccountContext
     public let updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)?
     public let mode: ContactSelectionControllerMode
@@ -107,7 +113,7 @@ public final class ContactSelectionControllerParams {
     public let options: Signal<[ContactListAdditionalOption], NoError>
     public let displayDeviceContacts: Bool
     public let displayCallIcons: Bool
-    public let multipleSelection: Bool
+    public let multipleSelection: MultipleSelectionMode
     public let requirePhoneNumbers: Bool
     public let allowChannelsInSearch: Bool
     public let confirmation: (ContactListPeer) -> Signal<Bool, NoError>
@@ -124,7 +130,7 @@ public final class ContactSelectionControllerParams {
         options: Signal<[ContactListAdditionalOption], NoError> = .single([]),
         displayDeviceContacts: Bool = false,
         displayCallIcons: Bool = false,
-        multipleSelection: Bool = false,
+        multipleSelection: MultipleSelectionMode = .disabled,
         requirePhoneNumbers: Bool = false,
         allowChannelsInSearch: Bool = false,
         confirmation: @escaping (ContactListPeer) -> Signal<Bool, NoError> = { _ in .single(true) },
diff --git a/submodules/CallListUI/Sources/CallListCallItem.swift b/submodules/CallListUI/Sources/CallListCallItem.swift
index a408a63cbc..17ae28f7d7 100644
--- a/submodules/CallListUI/Sources/CallListCallItem.swift
+++ b/submodules/CallListUI/Sources/CallListCallItem.swift
@@ -425,9 +425,8 @@ class CallListCallItemNode: ItemListRevealOptionsItemNode {
                             isVideo = conferenceCall.flags.contains(.isVideo)
                             if message.flags.contains(.Incoming) {
                                 hasIncoming = true
-                                //TODO:localize
                                 let missedTimeout: Int32
-                                #if DEBUG
+                                #if DEBUG && false
                                 missedTimeout = 5
                                 #else
                                 missedTimeout = 30
@@ -463,8 +462,7 @@ class CallListCallItemNode: ItemListRevealOptionsItemNode {
                             peersString.append(", ")
                         }
                         if peer.id == item.context.account.peerId {
-                            //TODO:localize
-                            peersString += "You"
+                            peersString += item.presentationData.strings.DialogList_You
                         } else {
                             peersString += peer.compactDisplayTitle
                         }
diff --git a/submodules/CallListUI/Sources/CallListController.swift b/submodules/CallListUI/Sources/CallListController.swift
index 1acf78752c..246fe5d891 100644
--- a/submodules/CallListUI/Sources/CallListController.swift
+++ b/submodules/CallListUI/Sources/CallListController.swift
@@ -108,7 +108,8 @@ public final class CallListController: TelegramBaseController {
         self.statusBar.statusBarStyle = self.presentationData.theme.rootController.statusBarStyle.style
         
         if case .tab = self.mode {
-            self.navigationItem.rightBarButtonItem = UIBarButtonItem(image: PresentationResourcesRootController.navigationCallIcon(self.presentationData.theme), style: .plain, target: self, action: #selector(self.callPressed))
+            //self.navigationItem.rightBarButtonItem = UIBarButtonItem(image: PresentationResourcesRootController.navigationCallIcon(self.presentationData.theme), style: .plain, target: self, action: #selector(self.callPressed))
+            self.navigationItem.rightBarButtonItem = nil
             
             let icon: UIImage?
             if useSpecialTabBarIcons() {
@@ -191,7 +192,7 @@ public final class CallListController: TelegramBaseController {
                     }
                 }
                 
-                self.navigationItem.rightBarButtonItem = UIBarButtonItem(image: PresentationResourcesRootController.navigationCallIcon(self.presentationData.theme), style: .plain, target: self, action: #selector(self.callPressed))
+                //self.navigationItem.rightBarButtonItem = UIBarButtonItem(image: PresentationResourcesRootController.navigationCallIcon(self.presentationData.theme), style: .plain, target: self, action: #selector(self.callPressed))
             case .navigation:
                 if self.editingMode {
                     self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: self.presentationData.strings.Common_Done, style: .done, target: self, action: #selector(self.donePressed))
@@ -296,9 +297,8 @@ public final class CallListController: TelegramBaseController {
                         if let result {
                             switch result {
                             case .linkCopied:
-                                //TODO:localize
                                 let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
-                                self.present(UndoOverlayController(presentationData: presentationData, content: .universal(animation: "anim_linkcopied", scale: 0.08, colors: ["info1.info1.stroke": UIColor.clear, "info2.info2.Fill": UIColor.clear], title: nil, text: "Call link copied.", customUndoText: "View Call", timeout: nil), elevatedLayout: false, animateInAsReplacement: false, action: { action in
+                                self.present(UndoOverlayController(presentationData: presentationData, content: .universal(animation: "anim_linkcopied", scale: 0.08, colors: ["info1.info1.stroke": UIColor.clear, "info2.info2.Fill": UIColor.clear], title: nil, text: presentationData.strings.CallList_ToastCallLinkCopied_Text, customUndoText: presentationData.strings.CallList_ToastCallLinkCopied_Action, timeout: nil), elevatedLayout: false, animateInAsReplacement: false, action: { action in
                                     if case .undo = action {
                                         openCall()
                                     }
@@ -383,7 +383,8 @@ public final class CallListController: TelegramBaseController {
                                     })
                                 } else {
                                     strongSelf.navigationItem.setLeftBarButton(UIBarButtonItem(title: strongSelf.presentationData.strings.Common_Edit, style: .plain, target: strongSelf, action: #selector(strongSelf.editPressed)), animated: true)
-                                    strongSelf.navigationItem.setRightBarButton(UIBarButtonItem(image: PresentationResourcesRootController.navigationCallIcon(strongSelf.presentationData.theme), style: .plain, target: self, action: #selector(strongSelf.callPressed)), animated: true)
+                                    //strongSelf.navigationItem.setRightBarButton(UIBarButtonItem(image: PresentationResourcesRootController.navigationCallIcon(strongSelf.presentationData.theme), style: .plain, target: self, action: #selector(strongSelf.callPressed)), animated: true)
+                                    strongSelf.navigationItem.setRightBarButton(nil, animated: true)
                                 }
                             case .navigation:
                                 if strongSelf.editingMode {
@@ -399,9 +400,9 @@ public final class CallListController: TelegramBaseController {
                     }
                 }
             }
-        }, createGroupCall: { [weak self] in
+        }, openNewCall: { [weak self] in
             if let strongSelf = self {
-                strongSelf.createGroupCall(peerIds: [], isVideo: false)
+                strongSelf.callPressed()
             }
         })
         
@@ -515,8 +516,7 @@ public final class CallListController: TelegramBaseController {
             return
         }
 
-        //TODO:localize
-        let options = [ContactListAdditionalOption(title: "New Call Link", icon: .generic(PresentationResourcesItemList.linkIcon(presentationData.theme)!), action: { [weak self] in
+        let options = [ContactListAdditionalOption(title: self.presentationData.strings.CallList_NewCallLink, icon: .generic(PresentationResourcesItemList.linkIcon(presentationData.theme)!), action: { [weak self] in
             guard let self else {
                 return
             }
@@ -652,7 +652,8 @@ public final class CallListController: TelegramBaseController {
         switch self.mode {
             case .tab:
                 self.navigationItem.setLeftBarButton(UIBarButtonItem(title: self.presentationData.strings.Common_Edit, style: .plain, target: self, action: #selector(self.editPressed)), animated: true)
-                self.navigationItem.setRightBarButton(UIBarButtonItem(image: PresentationResourcesRootController.navigationCallIcon(self.presentationData.theme), style: .plain, target: self, action: #selector(self.callPressed)), animated: true)
+                self.navigationItem.setRightBarButton(nil, animated: true)
+                //self.navigationItem.setRightBarButton(UIBarButtonItem(image: PresentationResourcesRootController.navigationCallIcon(self.presentationData.theme), style: .plain, target: self, action: #selector(self.callPressed)), animated: true)
             case .navigation:
                 self.navigationItem.setLeftBarButton(nil, animated: true)
                 self.navigationItem.setRightBarButton(UIBarButtonItem(title: self.presentationData.strings.Common_Edit, style: .plain, target: self, action: #selector(self.editPressed)), animated: true)
@@ -738,8 +739,7 @@ public final class CallListController: TelegramBaseController {
                 self.context.sharedContext.openCreateGroupCallUI(context: self.context, peerIds: conferenceCall.otherParticipants, parentController: self)
             default:
                 let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
-                //TODO:localize
-                self.present(textAlertController(context: self.context, title: nil, text: "An error occurred", actions: [TextAlertAction(type: .defaultAction, title: presentationData.strings.Common_OK, action: {})]), in: .window(.root))
+                self.present(textAlertController(context: self.context, title: nil, text: presentationData.strings.Login_UnknownError, actions: [TextAlertAction(type: .defaultAction, title: presentationData.strings.Common_OK, action: {})]), in: .window(.root))
             }
         })
     }
diff --git a/submodules/CallListUI/Sources/CallListControllerNode.swift b/submodules/CallListUI/Sources/CallListControllerNode.swift
index 60be775f9b..cd9c6c87be 100644
--- a/submodules/CallListUI/Sources/CallListControllerNode.swift
+++ b/submodules/CallListUI/Sources/CallListControllerNode.swift
@@ -67,16 +67,16 @@ final class CallListNodeInteraction {
     let delete: ([EngineMessage.Id]) -> Void
     let updateShowCallsTab: (Bool) -> Void
     let openGroupCall: (EnginePeer.Id) -> Void
-    let createGroupCall: () -> Void
+    let openNewCall: () -> Void
     
-    init(setMessageIdWithRevealedOptions: @escaping (EngineMessage.Id?, EngineMessage.Id?) -> Void, call: @escaping (EngineMessage) -> Void, openInfo: @escaping (EnginePeer.Id, [EngineMessage]) -> Void, delete: @escaping ([EngineMessage.Id]) -> Void, updateShowCallsTab: @escaping (Bool) -> Void, openGroupCall: @escaping (EnginePeer.Id) -> Void, createGroupCall: @escaping () -> Void) {
+    init(setMessageIdWithRevealedOptions: @escaping (EngineMessage.Id?, EngineMessage.Id?) -> Void, call: @escaping (EngineMessage) -> Void, openInfo: @escaping (EnginePeer.Id, [EngineMessage]) -> Void, delete: @escaping ([EngineMessage.Id]) -> Void, updateShowCallsTab: @escaping (Bool) -> Void, openGroupCall: @escaping (EnginePeer.Id) -> Void, openNewCall: @escaping () -> Void) {
         self.setMessageIdWithRevealedOptions = setMessageIdWithRevealedOptions
         self.call = call
         self.openInfo = openInfo
         self.delete = delete
         self.updateShowCallsTab = updateShowCallsTab
         self.openGroupCall = openGroupCall
-        self.createGroupCall = createGroupCall
+        self.openNewCall = openNewCall
     }
 }
 
@@ -125,10 +125,9 @@ private func mappedInsertEntries(context: AccountContext, presentationData: Item
                 }), directionHint: entry.directionHint)
             case let .displayTabInfo(_, text):
                 return ListViewInsertItem(index: entry.index, previousIndex: entry.previousIndex, item: ItemListTextItem(presentationData: presentationData, text: .plain(text), sectionId: 0), directionHint: entry.directionHint)
-            case .createGroupCall:
-                //TODO:localize
-                let item = ItemListPeerActionItem(presentationData: presentationData, style: showSettings ? .blocks : .plain, icon: PresentationResourcesItemList.linkIcon(presentationData.theme), title: "New Call Link", hasSeparator: false, sectionId: 1, noInsets: true, editing: false, action: {
-                    nodeInteraction.createGroupCall()
+            case .openNewCall:
+                let item = ItemListPeerActionItem(presentationData: presentationData, style: showSettings ? .blocks : .plain, icon: PresentationResourcesRootController.callListCallIcon(presentationData.theme), title: presentationData.strings.CallList_NewCall, hasSeparator: false, sectionId: 1, height: .generic, noInsets: true, editing: false, action: {
+                    nodeInteraction.openNewCall()
                 })
                 return ListViewInsertItem(index: entry.index, previousIndex: entry.previousIndex, item: item, directionHint: entry.directionHint)
             case let .groupCall(peer, _, isActive):
@@ -150,10 +149,9 @@ private func mappedUpdateEntries(context: AccountContext, presentationData: Item
                 }), directionHint: entry.directionHint)
             case let .displayTabInfo(_, text):
                 return ListViewUpdateItem(index: entry.index, previousIndex: entry.previousIndex, item: ItemListTextItem(presentationData: presentationData, text: .plain(text), sectionId: 0), directionHint: entry.directionHint)
-            case .createGroupCall:
-                //TODO:localize
-                let item = ItemListPeerActionItem(presentationData: presentationData, icon: PresentationResourcesItemList.linkIcon(presentationData.theme), title: "New Call Link", sectionId: 1, noInsets: true, editing: false, action: {
-                    nodeInteraction.createGroupCall()
+            case .openNewCall:
+                let item = ItemListPeerActionItem(presentationData: presentationData, style: showSettings ? .blocks : .plain, icon: PresentationResourcesRootController.callListCallIcon(presentationData.theme), title: presentationData.strings.CallList_NewCall, hasSeparator: false, sectionId: 1, height: .generic, noInsets: true, editing: false, action: {
+                    nodeInteraction.openNewCall()
                 })
                 return ListViewUpdateItem(index: entry.index, previousIndex: entry.previousIndex, item: item, directionHint: entry.directionHint)
             case let .groupCall(peer, _, isActive):
@@ -224,7 +222,7 @@ final class CallListControllerNode: ASDisplayNode {
     
     private let call: (EngineMessage) -> Void
     private let joinGroupCall: (EnginePeer.Id, EngineGroupCallDescription) -> Void
-    private let createGroupCall: () -> Void
+    private let openNewCall: () -> Void
     private let openInfo: (EnginePeer.Id, [EngineMessage]) -> Void
     private let emptyStateUpdated: (Bool) -> Void
     private let emptyStatePromise = Promise<Bool>()
@@ -234,7 +232,7 @@ final class CallListControllerNode: ASDisplayNode {
     
     private var previousContentOffset: ListViewVisibleContentOffset?
     
-    init(controller: CallListController, context: AccountContext, mode: CallListControllerMode, presentationData: PresentationData, call: @escaping (EngineMessage) -> Void, joinGroupCall: @escaping (EnginePeer.Id, EngineGroupCallDescription) -> Void, openInfo: @escaping (EnginePeer.Id, [EngineMessage]) -> Void, emptyStateUpdated: @escaping (Bool) -> Void, createGroupCall: @escaping () -> Void) {
+    init(controller: CallListController, context: AccountContext, mode: CallListControllerMode, presentationData: PresentationData, call: @escaping (EngineMessage) -> Void, joinGroupCall: @escaping (EnginePeer.Id, EngineGroupCallDescription) -> Void, openInfo: @escaping (EnginePeer.Id, [EngineMessage]) -> Void, emptyStateUpdated: @escaping (Bool) -> Void, openNewCall: @escaping () -> Void) {
         self.controller = controller
         self.context = context
         self.mode = mode
@@ -243,7 +241,7 @@ final class CallListControllerNode: ASDisplayNode {
         self.joinGroupCall = joinGroupCall
         self.openInfo = openInfo
         self.emptyStateUpdated = emptyStateUpdated
-        self.createGroupCall = createGroupCall
+        self.openNewCall = openNewCall
         self.currentState = CallListNodeState(presentationData: ItemListPresentationData(presentationData), dateTimeFormat: presentationData.dateTimeFormat, disableAnimations: true, editing: false, messageIdWithRevealedOptions: nil)
         self.statePromise = ValuePromise(self.currentState, ignoreRepeated: true)
         
@@ -447,11 +445,11 @@ final class CallListControllerNode: ASDisplayNode {
                     strongSelf.joinGroupCall(peerId, activeCall)
                 }
             }))
-        }, createGroupCall: { [weak self] in
+        }, openNewCall: { [weak self] in
             guard let strongSelf = self else {
                 return
             }
-            strongSelf.createGroupCall()
+            strongSelf.openNewCall()
         })
         
         let viewProcessingQueue = self.viewProcessingQueue
@@ -516,28 +514,18 @@ final class CallListControllerNode: ASDisplayNode {
             })
         }
         |> distinctUntilChanged
-
-        let canCreateGroupCall = context.engine.data.subscribe(TelegramEngine.EngineData.Item.Configuration.App())
-        |> map { configuration -> Bool in
-            var isConferencePossible = true
-            if let data = configuration.data, let value = data["ios_enable_conference"] as? Double {
-                isConferencePossible = value != 0.0
-            }
-            return isConferencePossible
-        }
         
         let callListNodeViewTransition = combineLatest(
             callListViewUpdate,
             self.statePromise.get(),
             groupCalls,
             showCallsTab,
-            currentGroupCallPeerId,
-            canCreateGroupCall
+            currentGroupCallPeerId
         )
-        |> mapToQueue { (updateAndType, state, groupCalls, showCallsTab, currentGroupCallPeerId, canCreateGroupCall) -> Signal<CallListNodeListViewTransition, NoError> in
+        |> mapToQueue { (updateAndType, state, groupCalls, showCallsTab, currentGroupCallPeerId) -> Signal<CallListNodeListViewTransition, NoError> in
             let (update, type) = updateAndType
             
-            let processedView = CallListNodeView(originalView: update.view, filteredEntries: callListNodeEntriesForView(view: update.view, canCreateGroupCall: canCreateGroupCall && mode == .tab, groupCalls: groupCalls, state: state, showSettings: showSettings, showCallsTab: showCallsTab, isRecentCalls: type == .all, currentGroupCallPeerId: currentGroupCallPeerId), presentationData: state.presentationData)
+            let processedView = CallListNodeView(originalView: update.view, filteredEntries: callListNodeEntriesForView(view: update.view, displayOpenNewCall: mode == .tab && type == .all, groupCalls: groupCalls, state: state, showSettings: showSettings, showCallsTab: showCallsTab, isRecentCalls: type == .all, currentGroupCallPeerId: currentGroupCallPeerId), presentationData: state.presentationData)
             let previous = previousView.swap(processedView)
             let previousType = previousType.swap(type)
                         
diff --git a/submodules/CallListUI/Sources/CallListNodeEntries.swift b/submodules/CallListUI/Sources/CallListNodeEntries.swift
index 22356ea608..37d7733834 100644
--- a/submodules/CallListUI/Sources/CallListNodeEntries.swift
+++ b/submodules/CallListUI/Sources/CallListNodeEntries.swift
@@ -25,7 +25,7 @@ enum CallListNodeEntry: Comparable, Identifiable {
     enum SortIndex: Comparable {
         case displayTab
         case displayTabInfo
-        case createGroupCall
+        case openNewCall
         case groupCall(EnginePeer.Id, String)
         case message(EngineMessage.Index)
         case hole(EngineMessage.Index)
@@ -41,7 +41,7 @@ enum CallListNodeEntry: Comparable, Identifiable {
                 default:
                     return false
                 }
-            case .createGroupCall:
+            case .openNewCall:
                 switch rhs {
                 case .displayTab, .displayTabInfo:
                     return false
@@ -50,7 +50,7 @@ enum CallListNodeEntry: Comparable, Identifiable {
                 }
             case let .groupCall(lhsPeerId, lhsTitle):
                 switch rhs {
-                case .displayTab, .displayTabInfo, .createGroupCall:
+                case .displayTab, .displayTabInfo, .openNewCall:
                     return false
                 case let .groupCall(rhsPeerId, rhsTitle):
                     if lhsTitle == rhsTitle {
@@ -63,7 +63,7 @@ enum CallListNodeEntry: Comparable, Identifiable {
                 }
             case let .hole(lhsIndex):
                 switch rhs {
-                case .displayTab, .displayTabInfo, .groupCall, .createGroupCall:
+                case .displayTab, .displayTabInfo, .groupCall, .openNewCall:
                     return false
                 case let .hole(rhsIndex):
                     return lhsIndex < rhsIndex
@@ -72,7 +72,7 @@ enum CallListNodeEntry: Comparable, Identifiable {
                 }
             case let .message(lhsIndex):
                 switch rhs {
-                case .displayTab, .displayTabInfo, .groupCall, .createGroupCall:
+                case .displayTab, .displayTabInfo, .groupCall, .openNewCall:
                     return false
                 case let .hole(rhsIndex):
                     return lhsIndex < rhsIndex
@@ -86,7 +86,7 @@ enum CallListNodeEntry: Comparable, Identifiable {
     
     case displayTab(PresentationTheme, String, Bool)
     case displayTabInfo(PresentationTheme, String)
-    case createGroupCall
+    case openNewCall
     case groupCall(peer: EnginePeer, editing: Bool, isActive: Bool)
     case messageEntry(topMessage: EngineMessage, messages: [EngineMessage], theme: PresentationTheme, strings: PresentationStrings, dateTimeFormat: PresentationDateTimeFormat, editing: Bool, hasActiveRevealControls: Bool, displayHeader: Bool, missed: Bool)
     case holeEntry(index: EngineMessage.Index, theme: PresentationTheme)
@@ -97,8 +97,8 @@ enum CallListNodeEntry: Comparable, Identifiable {
             return .displayTab
         case .displayTabInfo:
             return .displayTabInfo
-        case .createGroupCall:
-            return .createGroupCall
+        case .openNewCall:
+            return .openNewCall
         case let .groupCall(peer, _, _):
             return .groupCall(peer.id, peer.compactDisplayTitle)
         case let .messageEntry(message, _, _, _, _, _, _, _, _):
@@ -114,7 +114,7 @@ enum CallListNodeEntry: Comparable, Identifiable {
             return .setting(0)
         case .displayTabInfo:
             return .setting(1)
-        case .createGroupCall:
+        case .openNewCall:
             return .setting(2)
         case let .groupCall(peer, _, _):
             return .groupCall(peer.id)
@@ -143,8 +143,8 @@ enum CallListNodeEntry: Comparable, Identifiable {
             } else {
                 return false
             }
-        case .createGroupCall:
-            if case .createGroupCall = rhs {
+        case .openNewCall:
+            if case .openNewCall = rhs {
                 return true
             } else {
                 return false
@@ -212,7 +212,7 @@ enum CallListNodeEntry: Comparable, Identifiable {
     }
 }
 
-func callListNodeEntriesForView(view: EngineCallList, canCreateGroupCall: Bool, groupCalls: [EnginePeer], state: CallListNodeState, showSettings: Bool, showCallsTab: Bool, isRecentCalls: Bool, currentGroupCallPeerId: EnginePeer.Id?) -> [CallListNodeEntry] {
+func callListNodeEntriesForView(view: EngineCallList, displayOpenNewCall: Bool, groupCalls: [EnginePeer], state: CallListNodeState, showSettings: Bool, showCallsTab: Bool, isRecentCalls: Bool, currentGroupCallPeerId: EnginePeer.Id?) -> [CallListNodeEntry] {
     var result: [CallListNodeEntry] = []
     for entry in view.items {
         switch entry {
@@ -237,8 +237,8 @@ func callListNodeEntriesForView(view: EngineCallList, canCreateGroupCall: Bool,
             }
         }
 
-        if canCreateGroupCall {
-            result.append(.createGroupCall)
+        if displayOpenNewCall {
+            result.append(.openNewCall)
         }
         
         if showSettings {
diff --git a/submodules/ChatListUI/Sources/Node/ChatListItemStrings.swift b/submodules/ChatListUI/Sources/Node/ChatListItemStrings.swift
index d989d3e693..1e7012154e 100644
--- a/submodules/ChatListUI/Sources/Node/ChatListItemStrings.swift
+++ b/submodules/ChatListUI/Sources/Node/ChatListItemStrings.swift
@@ -298,9 +298,25 @@ public func chatListItemStrings(strings: PresentationStrings, nameDisplayOrder:
                         messageText = invoice.title
                     case let action as TelegramMediaAction:
                         switch action.action {
-                            case .conferenceCall:
-                                //TODO:localize
-                                messageText = "Group call"
+                            case let .conferenceCall(conferenceCall):
+                                let incoming = message.flags.contains(.Incoming)
+                                
+                                let missedTimeout: Int32 = 30
+                                let currentTime = Int32(Date().timeIntervalSince1970)
+                                
+                                if conferenceCall.flags.contains(.isMissed) {
+                                    messageText = strings.Chat_CallMessage_DeclinedGroupCall
+                                } else if message.timestamp < currentTime - missedTimeout {
+                                    messageText = strings.Chat_CallMessage_MissedGroupCall
+                                } else if conferenceCall.duration != nil {
+                                    messageText = strings.Chat_CallMessage_CancelledGroupCall
+                                } else {
+                                    if incoming {
+                                        messageText = strings.Chat_CallMessage_IncomingGroupCall
+                                    } else {
+                                        messageText = strings.Chat_CallMessage_OutgoingGroupCall
+                                    }
+                                }
                             case let .phoneCall(_, discardReason, _, isVideo):
                                 hideAuthor = !isPeerGroup
                                 let incoming = message.flags.contains(.Incoming)
diff --git a/submodules/ContactListUI/Sources/ContactsControllerNode.swift b/submodules/ContactListUI/Sources/ContactsControllerNode.swift
index 36d11ff2a3..cccd381c9b 100644
--- a/submodules/ContactListUI/Sources/ContactsControllerNode.swift
+++ b/submodules/ContactListUI/Sources/ContactsControllerNode.swift
@@ -474,7 +474,7 @@ final class ContactsControllerNode: ASDisplayNode, ASGestureRecognizerDelegate {
             if let requestAddContact = self?.requestAddContact {
                 requestAddContact(phoneNumber)
             }
-        }, openPeer: { [weak self] peer in
+        }, openPeer: { [weak self] peer, _ in
             if let requestOpenPeerFromSearch = self?.requestOpenPeerFromSearch {
                 requestOpenPeerFromSearch(peer)
             }
diff --git a/submodules/ContactListUI/Sources/ContactsSearchContainerNode.swift b/submodules/ContactListUI/Sources/ContactsSearchContainerNode.swift
index 7a9a595cd6..442df4f39d 100644
--- a/submodules/ContactListUI/Sources/ContactsSearchContainerNode.swift
+++ b/submodules/ContactListUI/Sources/ContactsSearchContainerNode.swift
@@ -52,14 +52,14 @@ private enum ContactListSearchEntryId: Hashable {
 }
 
 private enum ContactListSearchEntry: Comparable, Identifiable {
-    case addContact(PresentationTheme, PresentationStrings, String)
-    case peer(Int, PresentationTheme, PresentationStrings, ContactListPeer, EnginePeer.Presence?, ContactListSearchGroup, Bool, Bool)
+    case addContact(theme: PresentationTheme, strings: PresentationStrings, phoneNumber: String)
+    case peer(index: Int, theme: PresentationTheme, strings: PresentationStrings, peer: ContactListPeer, presence: EnginePeer.Presence?, group: ContactListSearchGroup, enabled: Bool, requiresPremiumForMessaging: Bool, displayCallIcons: Bool)
     
     var stableId: ContactListSearchEntryId {
         switch self {
             case .addContact:
                 return .addContact
-            case let .peer(_, _, _, peer, _, _, _, _):
+            case let .peer(_, _, _, peer, _, _, _, _, _):
                 return .peerId(peer.id)
         }
     }
@@ -72,9 +72,9 @@ private enum ContactListSearchEntry: Comparable, Identifiable {
                 } else {
                     return false
                 }
-            case let .peer(lhsIndex, lhsTheme, lhsStrings, lhsPeer, lhsPresence, lhsGroup, lhsEnabled, lhsRequiresPremiumForMessaging):
+            case let .peer(lhsIndex, lhsTheme, lhsStrings, lhsPeer, lhsPresence, lhsGroup, lhsEnabled, lhsRequiresPremiumForMessaging, lhsDisplayCallIcons):
                 switch rhs {
-                    case let .peer(rhsIndex, rhsTheme, rhsStrings, rhsPeer, rhsPresence, rhsGroup, rhsEnabled, rhsRequiresPremiumForMessaging):
+                    case let .peer(rhsIndex, rhsTheme, rhsStrings, rhsPeer, rhsPresence, rhsGroup, rhsEnabled, rhsRequiresPremiumForMessaging, rhsDisplayCallIcons):
                         if lhsIndex != rhsIndex {
                             return false
                         }
@@ -103,6 +103,9 @@ private enum ContactListSearchEntry: Comparable, Identifiable {
                         if lhsRequiresPremiumForMessaging != rhsRequiresPremiumForMessaging {
                             return false
                         }
+                        if lhsDisplayCallIcons != rhsDisplayCallIcons {
+                            return false
+                        }
                         return true
                     default:
                         return false
@@ -114,23 +117,23 @@ private enum ContactListSearchEntry: Comparable, Identifiable {
         switch lhs {
         case .addContact:
             return true
-        case let .peer(lhsIndex, _, _, _, _, _, _, _):
+        case let .peer(lhsIndex, _, _, _, _, _, _, _, _):
             switch rhs {
             case .addContact:
                 return false
-            case let .peer(rhsIndex, _, _, _, _, _, _, _):
+            case let .peer(rhsIndex, _, _, _, _, _, _, _, _):
                 return lhsIndex < rhsIndex
             }
         }
     }
     
-    func item(context: AccountContext, presentationData: PresentationData, nameSortOrder: PresentationPersonNameOrder, nameDisplayOrder: PresentationPersonNameOrder, timeFormat: PresentationDateTimeFormat, addContact: ((String) -> Void)?, openPeer: @escaping (ContactListPeer) -> Void, openDisabledPeer: @escaping (EnginePeer, ChatListDisabledPeerReason) -> Void, contextAction: ((EnginePeer, ASDisplayNode, ContextGesture?, CGPoint?) -> Void)?) -> ListViewItem {
+    func item(context: AccountContext, presentationData: PresentationData, nameSortOrder: PresentationPersonNameOrder, nameDisplayOrder: PresentationPersonNameOrder, timeFormat: PresentationDateTimeFormat, isPeerEnabled: @escaping (ContactListPeer) -> Bool, addContact: ((String) -> Void)?, openPeer: @escaping (ContactListPeer, ContactsSearchContainerNode.OpenPeerAction) -> Void, openDisabledPeer: @escaping (EnginePeer, ChatListDisabledPeerReason) -> Void, contextAction: ((EnginePeer, ASDisplayNode, ContextGesture?, CGPoint?) -> Void)?) -> ListViewItem {
         switch self {
             case let .addContact(theme, strings, phoneNumber):
                 return ContactsAddItem(context: context, theme: theme, strings: strings, phoneNumber: phoneNumber, header: ChatListSearchItemHeader(type: .phoneNumber, theme: theme, strings: strings, actionTitle: nil, action: nil), action: {
                     addContact?(phoneNumber)
                 })
-            case let .peer(_, theme, strings, peer, presence, group, enabled, requiresPremiumForMessaging):
+            case let .peer(_, theme, strings, peer, presence, group, enabled, requiresPremiumForMessaging, displayCallIcons):
                 let header: ListViewItemHeader
                 let status: ContactsPeerItemStatus
                 switch group {
@@ -161,8 +164,16 @@ private enum ContactListSearchEntry: Comparable, Identifiable {
                     case let .deviceContact(stableId, contact):
                         peerItem = .deviceContact(stableId: stableId, contact: contact)
                 }
-                return ContactsPeerItem(presentationData: ItemListPresentationData(presentationData), sortOrder: nameSortOrder, displayOrder: nameDisplayOrder, context: context, peerMode: .peer, peer: peerItem, status: status, requiresPremiumForMessaging: requiresPremiumForMessaging, enabled: enabled, selection: .none, editing: ContactsPeerItemEditing(editable: false, editing: false, revealed: false), index: nil, header: header, action: { _ in
-                    openPeer(peer)
+                var additionalActions: [ContactsPeerItemAction] = []
+                if displayCallIcons {
+                    additionalActions = [ContactsPeerItemAction(icon: .voiceCall, action: { _, sourceNode, gesture  in
+                        openPeer(peer, .voiceCall)
+                    }), ContactsPeerItemAction(icon: .videoCall, action: { _, sourceNode, gesture in
+                        openPeer(peer, .videoCall)
+                    })]
+                }
+                return ContactsPeerItem(presentationData: ItemListPresentationData(presentationData), sortOrder: nameSortOrder, displayOrder: nameDisplayOrder, context: context, peerMode: .peer, peer: peerItem, status: status, requiresPremiumForMessaging: requiresPremiumForMessaging, enabled: enabled && isPeerEnabled(peer), selection: .none, editing: ContactsPeerItemEditing(editable: false, editing: false, revealed: false), additionalActions: additionalActions, index: nil, header: header, action: { _ in
+                    openPeer(peer, .generic)
                 }, disabledAction: { _ in
                     if case let .peer(peer, _, _) = peer {
                         openDisabledPeer(EnginePeer(peer), requiresPremiumForMessaging ? .premiumRequired : .generic)
@@ -187,12 +198,12 @@ struct ContactListSearchContainerTransition {
     let query: String
 }
 
-private func contactListSearchContainerPreparedRecentTransition(from fromEntries: [ContactListSearchEntry], to toEntries: [ContactListSearchEntry], isSearching: Bool, emptyResults: Bool, query: String, context: AccountContext, presentationData: PresentationData, nameSortOrder: PresentationPersonNameOrder, nameDisplayOrder: PresentationPersonNameOrder, timeFormat: PresentationDateTimeFormat, addContact: ((String) -> Void)?, openPeer: @escaping (ContactListPeer) -> Void, openDisabledPeer: @escaping (EnginePeer, ChatListDisabledPeerReason) -> Void, contextAction: ((EnginePeer, ASDisplayNode, ContextGesture?, CGPoint?) -> Void)?) -> ContactListSearchContainerTransition {
+private func contactListSearchContainerPreparedRecentTransition(from fromEntries: [ContactListSearchEntry], to toEntries: [ContactListSearchEntry], isSearching: Bool, emptyResults: Bool, query: String, context: AccountContext, presentationData: PresentationData, nameSortOrder: PresentationPersonNameOrder, nameDisplayOrder: PresentationPersonNameOrder, timeFormat: PresentationDateTimeFormat, isPeerEnabled: @escaping (ContactListPeer) -> Bool, addContact: ((String) -> Void)?, openPeer: @escaping (ContactListPeer, ContactsSearchContainerNode.OpenPeerAction) -> Void, openDisabledPeer: @escaping (EnginePeer, ChatListDisabledPeerReason) -> Void, contextAction: ((EnginePeer, ASDisplayNode, ContextGesture?, CGPoint?) -> Void)?) -> ContactListSearchContainerTransition {
     let (deleteIndices, indicesAndItems, updateIndices) = mergeListsStableWithUpdates(leftList: fromEntries, rightList: toEntries)
     
     let deletions = deleteIndices.map { ListViewDeleteItem(index: $0, directionHint: nil) }
-    let insertions = indicesAndItems.map { ListViewInsertItem(index: $0.0, previousIndex: $0.2, item: $0.1.item(context: context, presentationData: presentationData, nameSortOrder: nameSortOrder, nameDisplayOrder: nameDisplayOrder, timeFormat: timeFormat, addContact: addContact, openPeer: openPeer, openDisabledPeer: openDisabledPeer, contextAction: contextAction), directionHint: nil) }
-    let updates = updateIndices.map { ListViewUpdateItem(index: $0.0, previousIndex: $0.2, item: $0.1.item(context: context, presentationData: presentationData, nameSortOrder: nameSortOrder, nameDisplayOrder: nameDisplayOrder, timeFormat: timeFormat, addContact: addContact, openPeer: openPeer, openDisabledPeer: openDisabledPeer, contextAction: contextAction), directionHint: nil) }
+    let insertions = indicesAndItems.map { ListViewInsertItem(index: $0.0, previousIndex: $0.2, item: $0.1.item(context: context, presentationData: presentationData, nameSortOrder: nameSortOrder, nameDisplayOrder: nameDisplayOrder, timeFormat: timeFormat, isPeerEnabled: isPeerEnabled, addContact: addContact, openPeer: openPeer, openDisabledPeer: openDisabledPeer, contextAction: contextAction), directionHint: nil) }
+    let updates = updateIndices.map { ListViewUpdateItem(index: $0.0, previousIndex: $0.2, item: $0.1.item(context: context, presentationData: presentationData, nameSortOrder: nameSortOrder, nameDisplayOrder: nameDisplayOrder, timeFormat: timeFormat, isPeerEnabled: isPeerEnabled, addContact: addContact, openPeer: openPeer, openDisabledPeer: openDisabledPeer, contextAction: contextAction), directionHint: nil) }
     
     return ContactListSearchContainerTransition(deletions: deletions, insertions: insertions, updates: updates, isSearching: isSearching, emptyResults: emptyResults, query: query)
 }
@@ -211,9 +222,16 @@ public struct ContactsSearchCategories: OptionSet {
 }
 
 public final class ContactsSearchContainerNode: SearchDisplayControllerContentNode {
+    public enum OpenPeerAction {
+        case generic
+        case voiceCall
+        case videoCall
+    }
+
     private let context: AccountContext
+    private let isPeerEnabled: (ContactListPeer) -> Bool
     private let addContact: ((String) -> Void)?
-    private let openPeer: (ContactListPeer) -> Void
+    private let openPeer: (ContactListPeer, ContactsSearchContainerNode.OpenPeerAction) -> Void
     private let openDisabledPeer: (EnginePeer, ChatListDisabledPeerReason) -> Void
     private let contextAction: ((EnginePeer, ASDisplayNode, ContextGesture?, CGPoint?) -> Void)?
     
@@ -238,8 +256,9 @@ public final class ContactsSearchContainerNode: SearchDisplayControllerContentNo
         return true
     }
     
-    public init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)? = nil, onlyWriteable: Bool, categories: ContactsSearchCategories, filters: [ContactListFilter] = [.excludeSelf], addContact: ((String) -> Void)?, openPeer: @escaping (ContactListPeer) -> Void, openDisabledPeer: @escaping (EnginePeer, ChatListDisabledPeerReason) -> Void, contextAction: ((EnginePeer, ASDisplayNode, ContextGesture?, CGPoint?) -> Void)?) {
+    public init(context: AccountContext, updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>)? = nil, onlyWriteable: Bool, categories: ContactsSearchCategories, filters: [ContactListFilter] = [.excludeSelf], displayCallIcons: Bool = false, isPeerEnabled: @escaping (ContactListPeer) -> Bool = { _ in true }, addContact: ((String) -> Void)?, openPeer: @escaping (ContactListPeer, ContactsSearchContainerNode.OpenPeerAction) -> Void, openDisabledPeer: @escaping (EnginePeer, ChatListDisabledPeerReason) -> Void, contextAction: ((EnginePeer, ASDisplayNode, ContextGesture?, CGPoint?) -> Void)?) {
         self.context = context
+        self.isPeerEnabled = isPeerEnabled
         self.addContact = addContact
         self.openPeer = openPeer
         self.openDisabledPeer = openDisabledPeer
@@ -441,7 +460,7 @@ public final class ContactsSearchContainerNode: SearchDisplayControllerContentNo
                                 enabled = false
                             }
                         }
-                        entries.append(.peer(index, themeAndStrings.0, themeAndStrings.1, .peer(peer: peer._asPeer(), isGlobal: false, participantCount: nil), localPeersAndPresences.1[peer.id], .contacts, enabled, requiresPremiumForMessaging))
+                        entries.append(.peer(index: index, theme: themeAndStrings.0, strings: themeAndStrings.1, peer: .peer(peer: peer._asPeer(), isGlobal: false, participantCount: nil), presence: localPeersAndPresences.1[peer.id], group: .contacts, enabled: enabled, requiresPremiumForMessaging: requiresPremiumForMessaging, displayCallIcons: displayCallIcons))
                         if searchDeviceContacts, case let .user(user) = peer, let phone = user.phone {
                             existingNormalizedPhoneNumbers.insert(DeviceContactNormalizedPhoneNumber(rawValue: formatPhoneNumber(phone)))
                         }
@@ -483,7 +502,7 @@ public final class ContactsSearchContainerNode: SearchDisplayControllerContentNo
                                     }
                                 }
                                 
-                                entries.append(.peer(index, themeAndStrings.0, themeAndStrings.1, .peer(peer: peer.peer, isGlobal: true, participantCount: peer.subscribers), nil, .global, enabled, requiresPremiumForMessaging))
+                                entries.append(.peer(index: index, theme: themeAndStrings.0, strings: themeAndStrings.1, peer: .peer(peer: peer.peer, isGlobal: true, participantCount: peer.subscribers), presence: nil, group: .global, enabled: enabled, requiresPremiumForMessaging: requiresPremiumForMessaging, displayCallIcons: displayCallIcons))
                                 if searchDeviceContacts, let user = peer.peer as? TelegramUser, let phone = user.phone {
                                     existingNormalizedPhoneNumbers.insert(DeviceContactNormalizedPhoneNumber(rawValue: formatPhoneNumber(phone)))
                                 }
@@ -518,7 +537,7 @@ public final class ContactsSearchContainerNode: SearchDisplayControllerContentNo
                                     }
                                 }
                                 
-                                entries.append(.peer(index, themeAndStrings.0, themeAndStrings.1, .peer(peer: peer.peer, isGlobal: true, participantCount: peer.subscribers), nil, .global, enabled, requiresPremiumForMessaging))
+                                entries.append(.peer(index: index, theme: themeAndStrings.0, strings: themeAndStrings.1, peer: .peer(peer: peer.peer, isGlobal: true, participantCount: peer.subscribers), presence: nil, group: .global, enabled: enabled, requiresPremiumForMessaging: requiresPremiumForMessaging, displayCallIcons: displayCallIcons))
                                 if searchDeviceContacts, let user = peer.peer as? TelegramUser, let phone = user.phone {
                                     existingNormalizedPhoneNumbers.insert(DeviceContactNormalizedPhoneNumber(rawValue: formatPhoneNumber(phone)))
                                 }
@@ -539,13 +558,13 @@ public final class ContactsSearchContainerNode: SearchDisplayControllerContentNo
                                     continue outer
                                 }
                             }
-                            entries.append(.peer(index, themeAndStrings.0, themeAndStrings.1, .deviceContact(stableId, contact.0), nil, .deviceContacts, true, false))
+                            entries.append(.peer(index: index, theme: themeAndStrings.0, strings: themeAndStrings.1, peer: .deviceContact(stableId, contact.0), presence: nil, group: .deviceContacts, enabled: true, requiresPremiumForMessaging: false, displayCallIcons: displayCallIcons))
                             index += 1
                         }
                     }
                     
                     if let _ = addContact, isViablePhoneNumber(query) {
-                        entries.append(.addContact(themeAndStrings.0, themeAndStrings.1, query))
+                        entries.append(.addContact(theme: themeAndStrings.0, strings: themeAndStrings.1, phoneNumber: query))
                     }
                     
                     return (entries, query)
@@ -571,9 +590,9 @@ public final class ContactsSearchContainerNode: SearchDisplayControllerContentNo
                     }
                 }
                 
-                let transition = contactListSearchContainerPreparedRecentTransition(from: previousItems, to: items ?? [], isSearching: items != nil, emptyResults: items?.isEmpty ?? false, query: query, context: context, presentationData: strongSelf.presentationData, nameSortOrder: strongSelf.presentationData.nameSortOrder, nameDisplayOrder: strongSelf.presentationData.nameDisplayOrder, timeFormat: strongSelf.presentationData.dateTimeFormat, addContact: addContact, openPeer: { peer in
+                let transition = contactListSearchContainerPreparedRecentTransition(from: previousItems, to: items ?? [], isSearching: items != nil, emptyResults: items?.isEmpty ?? false, query: query, context: context, presentationData: strongSelf.presentationData, nameSortOrder: strongSelf.presentationData.nameSortOrder, nameDisplayOrder: strongSelf.presentationData.nameDisplayOrder, timeFormat: strongSelf.presentationData.dateTimeFormat, isPeerEnabled: strongSelf.isPeerEnabled, addContact: addContact, openPeer: { peer, action in
                     self?.listNode.clearHighlightAnimated(true)
-                    self?.openPeer(peer)
+                    self?.openPeer(peer, action)
                 }, openDisabledPeer: { peer, reason in
                     guard let self else {
                         return
diff --git a/submodules/ContactListUI/Sources/InviteContactsControllerNode.swift b/submodules/ContactListUI/Sources/InviteContactsControllerNode.swift
index 504582fbac..57124b8f37 100644
--- a/submodules/ContactListUI/Sources/InviteContactsControllerNode.swift
+++ b/submodules/ContactListUI/Sources/InviteContactsControllerNode.swift
@@ -508,7 +508,7 @@ final class InviteContactsControllerNode: ASDisplayNode {
             return
         }
         
-        self.searchDisplayController = SearchDisplayController(presentationData: self.presentationData, contentNode: ContactsSearchContainerNode(context: self.context, onlyWriteable: false, categories: [.deviceContacts], addContact: nil, openPeer: { [weak self] peer in
+        self.searchDisplayController = SearchDisplayController(presentationData: self.presentationData, contentNode: ContactsSearchContainerNode(context: self.context, onlyWriteable: false, categories: [.deviceContacts], addContact: nil, openPeer: { [weak self] peer, _ in
             if let strongSelf = self, case let .deviceContact(id, _) = peer {
                 strongSelf.selectionState = strongSelf.selectionState.withSelectedContactId(id)
                 strongSelf.requestDeactivateSearch?()
diff --git a/submodules/ContextUI/Sources/ContextActionsContainerNode.swift b/submodules/ContextUI/Sources/ContextActionsContainerNode.swift
index 8641e4d77c..e4f72eda92 100644
--- a/submodules/ContextUI/Sources/ContextActionsContainerNode.swift
+++ b/submodules/ContextUI/Sources/ContextActionsContainerNode.swift
@@ -438,9 +438,8 @@ final class InnerTextSelectionTipContainerNode: ASDisplayNode {
             icon = nil
             isUserInteractionEnabled = action != nil
         case let .starsReactions(topCount):
-            //TODO:localize
             self.action = nil
-            self.text = "Send \(topCount) or more to highlight your profile"
+            self.text = self.presentationData.strings.Chat_SendStarsToBecomeTopInfo("\(topCount)").string
             self.targetSelectionIndex = nil
             icon = nil
             isUserInteractionEnabled = action != nil
diff --git a/submodules/InviteLinksUI/Sources/InviteLinkInviteController.swift b/submodules/InviteLinksUI/Sources/InviteLinkInviteController.swift
index cf901db89a..34a52902e2 100644
--- a/submodules/InviteLinksUI/Sources/InviteLinkInviteController.swift
+++ b/submodules/InviteLinksUI/Sources/InviteLinkInviteController.swift
@@ -492,10 +492,9 @@ public final class InviteLinkInviteController: ViewController {
                         let dismissAction: () -> Void = { [weak controller] in
                             controller?.dismissAnimated()
                         }
-                        //TODO:localize
                         controller.setItemGroups([
                             ActionSheetItemGroup(items: [
-                                ActionSheetTextItem(title: "Revoke Link"),
+                                ActionSheetTextItem(title: presentationData.strings.GroupCall_RevokeLinkText),
                                 ActionSheetButtonItem(title: presentationData.strings.GroupInfo_InviteLink_RevokeLink, color: .destructive, action: { [weak self] in
                                     dismissAction()
 
@@ -674,9 +673,8 @@ public final class InviteLinkInviteController: ViewController {
                     }
                     var entries: [InviteLinkInviteEntry] = []
                     
-                    //TODO:localize
-                    let helpText: String = "Anyone on Telegram can join your call by following the link below."
-                    entries.append(.header(title: "Call Link", text: helpText))
+                    let helpText: String = presentationData.strings.InviteLink_GroupCallLinkHelp
+                    entries.append(.header(title: presentationData.strings.InviteLink_CallLinkTitle, text: helpText))
                     
                     let mainInvite: ExportedInvitation = .link(link: mainInvite?.link ?? "", title: nil, isPermanent: true, requestApproval: false, isRevoked: false, adminId: self.context.account.peerId, date: 0, startDate: nil, expireDate: nil, usageLimit: nil, count: nil, requestedCount: nil, pricing: nil)
                     
diff --git a/submodules/InviteLinksUI/Sources/ItemListPermanentInviteLinkItem.swift b/submodules/InviteLinksUI/Sources/ItemListPermanentInviteLinkItem.swift
index e64aa14847..de6d03c3a7 100644
--- a/submodules/InviteLinksUI/Sources/ItemListPermanentInviteLinkItem.swift
+++ b/submodules/InviteLinksUI/Sources/ItemListPermanentInviteLinkItem.swift
@@ -369,8 +369,7 @@ public class ItemListPermanentInviteLinkItemNode: ListViewItemNode, ItemListItem
                         return (TelegramTextAttributes.URL, contents)
                     }
                 )
-                //TODO:localize
-                let justCreatedCallTextAttributedString = parseMarkdownIntoAttributedString("Be the first to join the call and add people from there. [Open Call >](open_call)", attributes: markdownAttributes).mutableCopy() as! NSMutableAttributedString
+                let justCreatedCallTextAttributedString = parseMarkdownIntoAttributedString(item.presentationData.strings.InviteLink_CreatedGroupCallFooter, attributes: markdownAttributes).mutableCopy() as! NSMutableAttributedString
                 if let range = justCreatedCallTextAttributedString.string.range(of: ">"), let chevronImage {
                     justCreatedCallTextAttributedString.addAttribute(.attachment, value: chevronImage, range: NSRange(range, in: justCreatedCallTextAttributedString.string))
                 }
diff --git a/submodules/JoinLinkPreviewUI/Sources/JoinLinkPreviewController.swift b/submodules/JoinLinkPreviewUI/Sources/JoinLinkPreviewController.swift
index 91c373bc47..5b23c18ed4 100644
--- a/submodules/JoinLinkPreviewUI/Sources/JoinLinkPreviewController.swift
+++ b/submodules/JoinLinkPreviewUI/Sources/JoinLinkPreviewController.swift
@@ -193,9 +193,7 @@ public func JoinLinkPreviewController(
 ) -> ViewController {
     if let data = context.currentAppConfiguration.with({ $0 }).data, data["ios_killswitch_legacy_join_link"] != nil {
         return LegacyJoinLinkPreviewController(context: context, link: link, navigateToPeer: navigateToPeer, parentNavigationController: parentNavigationController, resolvedState: resolvedState)
-    } else if case let .invite(invite) = resolvedState, !invite.flags.requestNeeded, !invite.flags.isBroadcast, !invite.flags.canRefulfillSubscription {
-        //TODO:release
-        
+    } else if case let .invite(invite) = resolvedState, !invite.flags.requestNeeded, !invite.flags.isBroadcast, !invite.flags.canRefulfillSubscription { 
         var verificationStatus: JoinSubjectScreenMode.Group.VerificationStatus?
         if invite.flags.isFake {
             verificationStatus = .fake
diff --git a/submodules/QrCodeUI/Sources/QrCodeScreen.swift b/submodules/QrCodeUI/Sources/QrCodeScreen.swift
index 69e11b3c2e..c5630feda9 100644
--- a/submodules/QrCodeUI/Sources/QrCodeScreen.swift
+++ b/submodules/QrCodeUI/Sources/QrCodeScreen.swift
@@ -253,8 +253,7 @@ public final class QrCodeScreen: ViewController {
                         case .channel:
                             text = self.presentationData.strings.InviteLink_QRCode_InfoChannel
                         case .groupCall:
-                            //TODO:localize
-                            text = "Everyone on Telegram can scan this code to join your group call."
+                            text = self.presentationData.strings.InviteLink_QRCode_InfoGroupCall
                     }
                 case .chatFolder:
                     title = self.presentationData.strings.InviteLink_QRCodeFolder_Title
diff --git a/submodules/SettingsUI/Sources/Privacy and Security/SelectivePrivacySettingsController.swift b/submodules/SettingsUI/Sources/Privacy and Security/SelectivePrivacySettingsController.swift
index bd4a4d56b3..a79f736255 100644
--- a/submodules/SettingsUI/Sources/Privacy and Security/SelectivePrivacySettingsController.swift	
+++ b/submodules/SettingsUI/Sources/Privacy and Security/SelectivePrivacySettingsController.swift	
@@ -1047,11 +1047,12 @@ private func selectivePrivacySettingsControllerEntries(presentationData: Present
     if let settingInfoText = settingInfoText {
         entries.append(.settingInfo(presentationData.theme, settingInfoText, settingInfoLink))
     }
-    
-    entries.append(.phoneDiscoveryHeader(presentationData.theme, presentationData.strings.PrivacyPhoneNumberSettings_DiscoveryHeader))
-    entries.append(.phoneDiscoveryEverybody(presentationData.theme, presentationData.strings.PrivacySettings_LastSeenEverybody, state.phoneDiscoveryEnabled != false))
-    entries.append(.phoneDiscoveryMyContacts(presentationData.theme, presentationData.strings.PrivacySettings_LastSeenContacts, state.phoneDiscoveryEnabled == false))
-    entries.append(.phoneDiscoveryInfo(presentationData.theme, state.phoneDiscoveryEnabled != false ? presentationData.strings.PrivacyPhoneNumberSettings_CustomPublicLink("+\(phoneNumber)").string : presentationData.strings.PrivacyPhoneNumberSettings_CustomDisabledHelp, phoneLink))
+    if case .phoneNumber = kind {
+        entries.append(.phoneDiscoveryHeader(presentationData.theme, presentationData.strings.PrivacyPhoneNumberSettings_DiscoveryHeader))
+        entries.append(.phoneDiscoveryEverybody(presentationData.theme, presentationData.strings.PrivacySettings_LastSeenEverybody, state.phoneDiscoveryEnabled != false))
+        entries.append(.phoneDiscoveryMyContacts(presentationData.theme, presentationData.strings.PrivacySettings_LastSeenContacts, state.phoneDiscoveryEnabled == false))
+        entries.append(.phoneDiscoveryInfo(presentationData.theme, state.phoneDiscoveryEnabled != false ? presentationData.strings.PrivacyPhoneNumberSettings_CustomPublicLink("+\(phoneNumber)").string : presentationData.strings.PrivacyPhoneNumberSettings_CustomDisabledHelp, phoneLink))
+    }
      
     if case .voiceMessages = kind, !isPremium {
         
diff --git a/submodules/TelegramCallsUI/Sources/CallController.swift b/submodules/TelegramCallsUI/Sources/CallController.swift
index c667d45901..c7dd71d3fc 100644
--- a/submodules/TelegramCallsUI/Sources/CallController.swift
+++ b/submodules/TelegramCallsUI/Sources/CallController.swift
@@ -498,14 +498,12 @@ public final class CallController: ViewController {
     }
     
     static func openConferenceAddParticipant(context: AccountContext, disablePeerIds: [EnginePeer.Id], shareLink: (() -> Void)?, completion: @escaping ([(id: EnginePeer.Id, isVideo: Bool)]) -> Void) -> ViewController {
-        //TODO:localize
         let presentationData = context.sharedContext.currentPresentationData.with({ $0 }).withUpdated(theme: defaultDarkColorPresentationTheme)
         
         var options: [ContactListAdditionalOption] = []
         var openShareLinkImpl: (() -> Void)?
         if shareLink != nil {
-            //TODO:localize
-            options.append(ContactListAdditionalOption(title: "Share Call Link", icon: .generic(UIImage(bundleImageName: "Contact List/LinkActionIcon")!), action: {
+            options.append(ContactListAdditionalOption(title: presentationData.strings.Call_ShareLink, icon: .generic(UIImage(bundleImageName: "Contact List/LinkActionIcon")!), action: {
                 openShareLinkImpl?()
             }, clearHighlightAutomatically: false))
         }
@@ -515,11 +513,11 @@ public final class CallController: ViewController {
             updatedPresentationData: (initial: presentationData, signal: .single(presentationData)),
             mode: .generic,
             title: { strings in
-                //TODO:localize
-                return "Add Member"
+                return strings.Call_AddMemberTitle
             },
             options: .single(options),
             displayCallIcons: true,
+            multipleSelection: .disabled,
             confirmation: { peer in
                 switch peer {
                 case let .peer(peer, _, _):
diff --git a/submodules/TelegramCallsUI/Sources/PresentationCall.swift b/submodules/TelegramCallsUI/Sources/PresentationCall.swift
index 41555bd8e4..c6b182ac82 100644
--- a/submodules/TelegramCallsUI/Sources/PresentationCall.swift
+++ b/submodules/TelegramCallsUI/Sources/PresentationCall.swift
@@ -765,8 +765,8 @@ public final class PresentationCallImpl: PresentationCall {
         self.localVideoEndpointId = nil
         self.remoteVideoEndpointId = nil
         
-        //TODO:localize
-        self.callKitIntegration?.updateCallIsConference(uuid: self.internalId, title: self.conferenceTitle ?? "Group Call")
+        let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
+        self.callKitIntegration?.updateCallIsConference(uuid: self.internalId, title: self.conferenceTitle ?? presentationData.strings.Call_GenericGroupCallTitle)
     }
     
     func internal_markAsCanBeRemoved() {
diff --git a/submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift b/submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift
index 4caf389cbc..3b8178798e 100644
--- a/submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift
+++ b/submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift
@@ -210,6 +210,11 @@ private final class PendingConferenceInvitationContext {
         case ringing
     }
     
+    enum InvitationError {
+        case generic
+        case privacy(peer: EnginePeer?)
+    }
+    
     private let engine: TelegramEngine
     private var requestDisposable: Disposable?
     private var stateDisposable: Disposable?
@@ -218,19 +223,12 @@ private final class PendingConferenceInvitationContext {
     private var hadMessage: Bool = false
     private var didNotifyEnded: Bool = false
     
-    init(engine: TelegramEngine, reference: InternalGroupCallReference, peerId: PeerId, isVideo: Bool, onStateUpdated: @escaping (State) -> Void, onEnded: @escaping (Bool) -> Void) {
+    init(engine: TelegramEngine, reference: InternalGroupCallReference, peerId: PeerId, isVideo: Bool, onStateUpdated: @escaping (State) -> Void, onEnded: @escaping (Bool) -> Void, onError: @escaping (InvitationError) -> Void) {
         self.engine = engine
-        self.requestDisposable = (engine.calls.inviteConferenceCallParticipant(reference: reference, peerId: peerId, isVideo: isVideo).startStrict(next: { [weak self] messageId in
+        self.requestDisposable = ((engine.calls.inviteConferenceCallParticipant(reference: reference, peerId: peerId, isVideo: isVideo) |> deliverOnMainQueue).startStrict(next: { [weak self] messageId in
             guard let self else {
                 return
             }
-            guard let messageId else {
-                if !self.didNotifyEnded {
-                    self.didNotifyEnded = true
-                    onEnded(false)
-                }
-                return
-            }
             self.messageId = messageId
             
             onStateUpdated(.ringing)
@@ -296,6 +294,24 @@ private final class PendingConferenceInvitationContext {
                     }
                 }
             })
+        }, error: { [weak self] error in
+            guard let self else {
+                return
+            }
+            
+            if !self.didNotifyEnded {
+                self.didNotifyEnded = true
+                onEnded(false)
+            }
+            
+            let mappedError: InvitationError
+            switch error {
+            case .privacy(let peer):
+                mappedError = .privacy(peer: peer)
+            default:
+                mappedError = .generic
+            }
+            onError(mappedError)
         }))
     }
     
@@ -792,6 +808,8 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
 
     private let e2eContext: ConferenceCallE2EContext?
     
+    private var lastErrorAlertTimestamp: Double = 0.0
+    
     init(
         accountContext: AccountContext,
         audioSession: ManagedAudioSession,
@@ -841,6 +859,12 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
         self.isConference = isConference
         self.beginWithVideo = beginWithVideo
         self.keyPair = keyPair
+        
+        if self.isConference && conferenceSourceId == nil {
+            self.isMutedValue = .unmuted
+            self.isMutedPromise.set(self.isMutedValue)
+            self.stateValue.muteState = nil
+        }
 
         if let keyPair, let initialCall {
             self.e2eContext = ConferenceCallE2EContext(
@@ -1742,6 +1766,15 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                             self.onMutedSpeechActivityDetected?(value)
                         }
                     }, isConference: self.isConference, audioIsActiveByDefault: audioIsActiveByDefault, isStream: self.isStream, sharedAudioDevice: self.sharedAudioContext?.audioDevice, encryptionContext: encryptionContext))
+                    
+                    let isEffectivelyMuted: Bool
+                    switch self.isMutedValue {
+                    case let .muted(isPushToTalkActive):
+                        isEffectivelyMuted = !isPushToTalkActive
+                    case .unmuted:
+                        isEffectivelyMuted = false
+                    }
+                    genericCallContext.setIsMuted(isEffectivelyMuted)
                 }
 
                 self.genericCallContext = genericCallContext
@@ -1889,6 +1922,14 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                 } else {
                     reference = .id(id: callInfo.id, accessHash: callInfo.accessHash)
                 }
+                
+                let isEffectivelyMuted: Bool
+                switch self.isMutedValue {
+                case let .muted(isPushToTalkActive):
+                    isEffectivelyMuted = !isPushToTalkActive
+                case .unmuted:
+                    isEffectivelyMuted = false
+                }
 
                 self.currentLocalSsrc = ssrc
                 self.requestDisposable.set((self.accountContext.engine.calls.joinGroupCall(
@@ -1896,7 +1937,7 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                     joinAs: self.joinAsPeerId,
                     callId: callInfo.id,
                     reference: reference,
-                    preferMuted: true,
+                    preferMuted: isEffectivelyMuted,
                     joinPayload: joinPayload,
                     peerAdminIds: peerAdminIds,
                     inviteHash: self.invite,
@@ -1962,7 +2003,11 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
 
                     self.updateSessionState(internalState: .established(info: joinCallResult.callInfo, connectionMode: joinCallResult.connectionMode, clientParams: clientParams, localSsrc: ssrc, initialState: joinCallResult.state), audioSessionControl: self.audioSessionControl)
                     
-                    self.e2eContext?.begin()
+                    if let e2eState = joinCallResult.e2eState {
+                        self.e2eContext?.begin(initialState: e2eState)
+                    } else {
+                        self.e2eContext?.begin(initialState: nil)
+                    }
                 }, error: { [weak self] error in
                     guard let self else {
                         return
@@ -3536,6 +3581,32 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                 onEnded: { success in
                     didEndAlready = true
                     onEnded?(success)
+                },
+                onError: { [weak self] error in
+                    guard let self else {
+                        return
+                    }
+                    
+                    let timestamp = CACurrentMediaTime()
+                    if self.lastErrorAlertTimestamp > timestamp - 1.0 {
+                        return
+                    }
+                    self.lastErrorAlertTimestamp = timestamp
+                    
+                    let presentationData = self.accountContext.sharedContext.currentPresentationData.with({ $0 }).withUpdated(theme: defaultDarkColorPresentationTheme)
+                    
+                    var errorText = presentationData.strings.Login_UnknownError
+                    switch error {
+                    case let .privacy(peer):
+                        if let peer {
+                            errorText = presentationData.strings.Call_PrivacyErrorMessage(peer.compactDisplayTitle).string
+                        }
+                    default:
+                        break
+                    }
+                    self.accountContext.sharedContext.mainWindow?.present(standardTextAlertController(theme: AlertControllerTheme(presentationData: presentationData), title: nil, text: errorText, actions: [
+                        TextAlertAction(type: .genericAction, title: presentationData.strings.Common_OK, action: {})
+                    ]), on: .root, blockInteraction: false, completion: {})
                 }
             )
             if !didEndAlready {
diff --git a/submodules/TelegramCallsUI/Sources/VideoChatActionButtonComponent.swift b/submodules/TelegramCallsUI/Sources/VideoChatActionButtonComponent.swift
index 5a68054ee1..5879d044a0 100644
--- a/submodules/TelegramCallsUI/Sources/VideoChatActionButtonComponent.swift
+++ b/submodules/TelegramCallsUI/Sources/VideoChatActionButtonComponent.swift
@@ -65,9 +65,9 @@ final class VideoChatActionButtonComponent: Component {
         }
     }
     
-    enum MicrophoneState {
+    enum MicrophoneState: Equatable {
         case connecting
-        case muted
+        case muted(forced: Bool)
         case unmuted
         case raiseHand
         case scheduled
diff --git a/submodules/TelegramCallsUI/Sources/VideoChatEncryptionKeyComponent.swift b/submodules/TelegramCallsUI/Sources/VideoChatEncryptionKeyComponent.swift
index 58d84e2d1b..83abd095f9 100644
--- a/submodules/TelegramCallsUI/Sources/VideoChatEncryptionKeyComponent.swift
+++ b/submodules/TelegramCallsUI/Sources/VideoChatEncryptionKeyComponent.swift
@@ -550,7 +550,7 @@ final class VideoChatEncryptionKeyComponent: Component {
                 self.isUpdating = false
             }
 
-            #if DEBUG && true
+#if DEBUG && false
             if self.component == nil {
                 self.mockStateTimer = Foundation.Timer.scheduledTimer(withTimeInterval: 4.0, repeats: true, block: { [weak self] _ in
                     guard let self else {
@@ -614,11 +614,10 @@ final class VideoChatEncryptionKeyComponent: Component {
                 )
             }
             
-            //TODO:localize
             let collapsedTextSize = self.collapsedText.update(
                 transition: .immediate,
                 component: AnyComponent(MultilineTextComponent(
-                    text: .plain(NSAttributedString(string: "End-to-end encrypted", font: Font.semibold(12.0), textColor: component.theme.list.itemPrimaryTextColor))
+                    text: .plain(NSAttributedString(string: component.strings.VideoChat_EncryptionKeyLabel, font: Font.semibold(12.0), textColor: component.theme.list.itemPrimaryTextColor))
                 )),
                 environment: {},
                 containerSize: CGSize(width: 1000.0, height: 1000.0)
@@ -627,7 +626,7 @@ final class VideoChatEncryptionKeyComponent: Component {
             let expandedTextSize = self.expandedText.update(
                 transition: .immediate,
                 component: AnyComponent(BalancedTextComponent(
-                    text: .plain(NSAttributedString(string: "These four emojis represent the call's encryption key. They must match for all participants and change when someone joins or leaves.", font: Font.regular(12.0), textColor: component.theme.list.itemPrimaryTextColor)),
+                    text: .plain(NSAttributedString(string: component.strings.VideoChat_EncryptionKeyText, font: Font.regular(12.0), textColor: component.theme.list.itemPrimaryTextColor)),
                     maximumNumberOfLines: 0,
                     lineSpacing: 0.3
                 )),
@@ -638,7 +637,7 @@ final class VideoChatEncryptionKeyComponent: Component {
             let expandedButtonTextSize = self.expandedButtonText.update(
                 transition: .immediate,
                 component: AnyComponent(MultilineTextComponent(
-                    text: .plain(NSAttributedString(string: "Close", font: Font.regular(17.0), textColor: component.theme.list.itemPrimaryTextColor))
+                    text: .plain(NSAttributedString(string: component.strings.VideoChat_EncryptionKeyDone, font: Font.regular(17.0), textColor: component.theme.list.itemPrimaryTextColor))
                 )),
                 environment: {},
                 containerSize: CGSize(width: availableSize.width - expandedSideInset * 2.0, height: 1000.0)
diff --git a/submodules/TelegramCallsUI/Sources/VideoChatMicButtonComponent.swift b/submodules/TelegramCallsUI/Sources/VideoChatMicButtonComponent.swift
index 80c340ef08..6156b426d7 100644
--- a/submodules/TelegramCallsUI/Sources/VideoChatMicButtonComponent.swift
+++ b/submodules/TelegramCallsUI/Sources/VideoChatMicButtonComponent.swift
@@ -182,7 +182,7 @@ final class VideoChatMicButtonComponent: Component {
     
     enum Content: Equatable {
         case connecting
-        case muted
+        case muted(forced: Bool)
         case unmuted(pushToTalk: Bool)
         case raiseHand(isRaised: Bool)
         case scheduled(state: ScheduledState)
@@ -263,9 +263,13 @@ final class VideoChatMicButtonComponent: Component {
                 switch component.content {
                 case .connecting, .unmuted, .raiseHand, .scheduled:
                     self.beginTrackingWasPushToTalk = false
-                case .muted:
-                    self.beginTrackingWasPushToTalk = true
-                    component.updateUnmutedStateIsPushToTalk(true)
+                case let .muted(forced):
+                    if forced {
+                        self.beginTrackingWasPushToTalk = false
+                    } else {
+                        self.beginTrackingWasPushToTalk = true
+                        component.updateUnmutedStateIsPushToTalk(true)
+                    }
                 }
             }
             
@@ -291,8 +295,11 @@ final class VideoChatMicButtonComponent: Component {
                 switch component.content {
                 case .connecting:
                     break
-                case .muted:
-                    component.updateUnmutedStateIsPushToTalk(false)
+                case let .muted(forced):
+                    if forced {   
+                    } else {
+                        component.updateUnmutedStateIsPushToTalk(false)
+                    }
                 case .unmuted:
                     if self.beginTrackingWasPushToTalk {
                         if timestamp < self.beginTrackingTimestamp + 0.15 {
@@ -340,8 +347,12 @@ final class VideoChatMicButtonComponent: Component {
             case .connecting:
                 titleText = component.strings.VoiceChat_Connecting
                 isEnabled = false
-            case .muted:
-                titleText = component.strings.VoiceChat_Unmute
+            case let .muted(forced):
+                if forced {
+                    titleText = component.strings.VoiceChat_MutedByAdmin
+                } else {
+                    titleText = component.strings.VoiceChat_Unmute
+                }
             case let .unmuted(isPushToTalk):
                 titleText = isPushToTalk ? component.strings.VoiceChat_Live : component.strings.VoiceChat_Mute
             case let .raiseHand(isRaised):
@@ -433,7 +444,9 @@ final class VideoChatMicButtonComponent: Component {
                         context.fill(CGRect(origin: CGPoint(), size: size))
                     case .muted, .unmuted, .raiseHand, .scheduled:
                         let colors: [UIColor]
-                        if case .muted = component.content {
+                        if case .muted(forced: true) = component.content {
+                            colors = [UIColor(rgb: 0x3252EF), UIColor(rgb: 0xC64688)]
+                        } else if case .muted(forced: false) = component.content {
                             colors = [UIColor(rgb: 0x0080FF), UIColor(rgb: 0x00A1FE)]
                         } else if case .raiseHand = component.content {
                             colors = [UIColor(rgb: 0x3252EF), UIColor(rgb: 0xC64688)]
@@ -606,7 +619,9 @@ final class VideoChatMicButtonComponent: Component {
                 transition.setScale(view: blobView, scale: availableSize.width / 116.0)
                 
                 let blobsColor: UIColor
-                if case .muted = component.content {
+                if case .muted(forced: true) = component.content {
+                    blobsColor = UIColor(rgb: 0x914BAD)
+                } else if case .muted(forced: false) = component.content {
                     blobsColor = UIColor(rgb: 0x0086FF)
                 } else if case .raiseHand = component.content {
                     blobsColor = UIColor(rgb: 0x914BAD)
@@ -657,7 +672,9 @@ final class VideoChatMicButtonComponent: Component {
                 }
                 
                 let glowColor: UIColor
-                if case .muted = component.content {
+                if case .muted(forced: true) = component.content {
+                    glowColor = UIColor(rgb: 0x3252EF)
+                } else if case .muted(forced: false) = component.content {
                     glowColor = UIColor(rgb: 0x0086FF)
                 } else if case .raiseHand = component.content {
                     glowColor = UIColor(rgb: 0x3252EF)
diff --git a/submodules/TelegramCallsUI/Sources/VideoChatParticipantsComponent.swift b/submodules/TelegramCallsUI/Sources/VideoChatParticipantsComponent.swift
index de122e01a9..a354a1c543 100644
--- a/submodules/TelegramCallsUI/Sources/VideoChatParticipantsComponent.swift
+++ b/submodules/TelegramCallsUI/Sources/VideoChatParticipantsComponent.swift
@@ -1282,18 +1282,7 @@ final class VideoChatParticipantsComponent: Component {
                         let invitedPeer = component.invitedPeers[i - self.listParticipants.count]
                         participantPeerId = invitedPeer.peer.id
                         
-                        let subtitle: PeerListItemComponent.Subtitle
-                        //TODO:localize
-                        switch invitedPeer.state {
-                        case .none:
-                            subtitle = PeerListItemComponent.Subtitle(text: component.strings.VoiceChat_StatusInvited, color: .neutral)
-                        case .connecting:
-                            subtitle = PeerListItemComponent.Subtitle(text: "connecting...", color: .neutral)
-                        case .requesting:
-                            subtitle = PeerListItemComponent.Subtitle(text: "requesting...", color: .neutral)
-                        case .ringing:
-                            subtitle = PeerListItemComponent.Subtitle(text: "invited", color: .neutral)
-                        }
+                        let subtitle: PeerListItemComponent.Subtitle = PeerListItemComponent.Subtitle(text: component.strings.VoiceChat_StatusInvited, color: .neutral)
                         
                         let rightAccessoryComponent: AnyComponent<Empty> = AnyComponent(VideoChatParticipantInvitedStatusComponent(
                             theme: component.theme
@@ -1861,11 +1850,10 @@ final class VideoChatParticipantsComponent: Component {
                     let iconType: VideoChatListInviteComponent.Icon
                     switch inviteOption.type {
                     case let .invite(isMultiple):
-                        //TODO:localize
                         if isMultiple {
                             inviteText = component.strings.VoiceChat_InviteMember
                         } else {
-                            inviteText = "Add Member"
+                            inviteText = component.strings.VideoChat_InviteMember
                         }
                         iconType = .addUser
                     case .shareLink:
diff --git a/submodules/TelegramCallsUI/Sources/VideoChatScreen.swift b/submodules/TelegramCallsUI/Sources/VideoChatScreen.swift
index 787ec7d39c..249521f415 100644
--- a/submodules/TelegramCallsUI/Sources/VideoChatScreen.swift
+++ b/submodules/TelegramCallsUI/Sources/VideoChatScreen.swift
@@ -685,9 +685,8 @@ final class VideoChatScreenComponent: Component {
                         if let result {
                             switch result {
                             case .linkCopied:
-                                //TODO:localize
                                 let presentationData = groupCall.accountContext.sharedContext.currentPresentationData.with { $0 }
-                                self.environment?.controller()?.present(UndoOverlayController(presentationData: presentationData, content: .universal(animation: "anim_linkcopied", scale: 0.08, colors: ["info1.info1.stroke": UIColor.clear, "info2.info2.Fill": UIColor.clear], title: nil, text: "Call link copied.", customUndoText: nil, timeout: nil), elevatedLayout: false, animateInAsReplacement: false, action: { action in
+                                self.environment?.controller()?.present(UndoOverlayController(presentationData: presentationData, content: .universal(animation: "anim_linkcopied", scale: 0.08, colors: ["info1.info1.stroke": UIColor.clear, "info2.info2.Fill": UIColor.clear], title: nil, text: presentationData.strings.CallList_ToastCallLinkCopied_Text, customUndoText: presentationData.strings.CallList_ToastCallLinkCopied_Action, timeout: nil), elevatedLayout: false, animateInAsReplacement: false, action: { action in
                                     return false
                                 }), in: .current)
                             case .openCall:
@@ -2038,11 +2037,10 @@ final class VideoChatScreenComponent: Component {
                 maxTitleWidth -= 110.0
             }
             
-            //TODO:localize
             let titleSize = self.title.update(
                 transition: transition,
                 component: AnyComponent(VideoChatTitleComponent(
-                    title: self.callState?.title ?? self.peer?.debugDisplayTitle ?? "Group Call",
+                    title: self.callState?.title ?? self.peer?.debugDisplayTitle ?? environment.strings.VideoChat_GroupCallTitle,
                     status: idleTitleStatusText,
                     isRecording: self.callState?.recordingStartTimestamp != nil,
                     strings: environment.strings,
@@ -2555,9 +2553,12 @@ final class VideoChatScreenComponent: Component {
                                     micButtonContent = .unmuted(pushToTalk: self.isPushToTalkActive)
                                     actionButtonMicrophoneState = .unmuted
                                 } else {
-                                    micButtonContent = .muted
-                                    actionButtonMicrophoneState = .muted
+                                    micButtonContent = .muted(forced: false)
+                                    actionButtonMicrophoneState = .muted(forced: false)
                                 }
+                            } else if isConference {
+                                micButtonContent = .muted(forced: true)
+                                actionButtonMicrophoneState = .muted(forced: true)
                             } else {
                                 micButtonContent = .raiseHand(isRaised: callState.raisedHand)
                                 actionButtonMicrophoneState = .raiseHand
@@ -2708,6 +2709,18 @@ final class VideoChatScreenComponent: Component {
             } else if let expandedParticipantsVideoState = self.expandedParticipantsVideoState, !expandedParticipantsVideoState.isUIHidden {
                 displayVideoControlButton = false
             }
+            if case .audio = videoControlButtonContent {
+                if let (availableOutputs, _) = self.audioOutputState {
+                    if availableOutputs.count <= 0 {
+                        displayVideoControlButton = false
+                    }
+                } else {
+                    displayVideoControlButton = false
+                }
+            }
+            if videoControlButtonContent == videoButtonContent {
+                displayVideoControlButton = false
+            }
 
             let videoControlButtonSize = self.videoControlButton.update(
                 transition: transition,
diff --git a/submodules/TelegramCallsUI/Sources/VideoChatScreenInviteMembers.swift b/submodules/TelegramCallsUI/Sources/VideoChatScreenInviteMembers.swift
index 1fd32412b3..4d97fef81e 100644
--- a/submodules/TelegramCallsUI/Sources/VideoChatScreenInviteMembers.swift
+++ b/submodules/TelegramCallsUI/Sources/VideoChatScreenInviteMembers.swift
@@ -129,7 +129,6 @@ extension VideoChatScreenComponent.View {
                         if let participant {
                             dismissController?()
                             
-                            //TODO:release
                             if groupCall.invitePeer(participant.peer.id, isVideo: false) {
                                 let text: String
                                 if case let .channel(channel) = self.peer, case .broadcast = channel.info {
@@ -242,7 +241,6 @@ extension VideoChatScreenComponent.View {
                                             }
                                             dismissController?()
                                             
-                                            //TODO:release
                                             if groupCall.invitePeer(peer.id, isVideo: false) {
                                                 let text: String
                                                 if case let .channel(channel) = self.peer, case .broadcast = channel.info {
@@ -315,7 +313,6 @@ extension VideoChatScreenComponent.View {
                                             }
                                             dismissController?()
                                             
-                                            //TODO:release
                                             if groupCall.invitePeer(peer.id, isVideo: false) {
                                                 let text: String
                                                 if case let .channel(channel) = self.peer, case .broadcast = channel.info {
diff --git a/submodules/TelegramCallsUI/Sources/VoiceChatController.swift b/submodules/TelegramCallsUI/Sources/VoiceChatController.swift
index 60cefcd87c..d3c7626b85 100644
--- a/submodules/TelegramCallsUI/Sources/VoiceChatController.swift
+++ b/submodules/TelegramCallsUI/Sources/VoiceChatController.swift
@@ -1256,7 +1256,6 @@ final class VoiceChatControllerImpl: ViewController, VoiceChatController {
                         if let participant = participant {
                             dismissController?()
                             
-                            //TODO:release
                             if strongSelf.call.invitePeer(participant.peer.id, isVideo: false) {
                                 let text: String
                                 if let channel = strongSelf.peer as? TelegramChannel, case .broadcast = channel.info {
@@ -1365,7 +1364,6 @@ final class VoiceChatControllerImpl: ViewController, VoiceChatController {
                                             }
                                             dismissController?()
                                             
-                                            //TODO:release
                                             if strongSelf.call.invitePeer(peer.id, isVideo: false) {
                                                 let text: String
                                                 if let channel = strongSelf.peer as? TelegramChannel, case .broadcast = channel.info {
@@ -1434,7 +1432,6 @@ final class VoiceChatControllerImpl: ViewController, VoiceChatController {
                                             }
                                             dismissController?()
                                             
-                                            //TODO:release
                                             if strongSelf.call.invitePeer(peer.id, isVideo: false) {
                                                 let text: String
                                                 if let channel = strongSelf.peer as? TelegramChannel, case .broadcast = channel.info {
diff --git a/submodules/TelegramCore/Sources/State/ConferenceCallE2EContext.swift b/submodules/TelegramCore/Sources/State/ConferenceCallE2EContext.swift
index 31d81d6c05..5914833d9b 100644
--- a/submodules/TelegramCore/Sources/State/ConferenceCallE2EContext.swift
+++ b/submodules/TelegramCore/Sources/State/ConferenceCallE2EContext.swift
@@ -79,7 +79,7 @@ public final class ConferenceCallE2EContext {
             self.synchronizeRemovedParticipantsTimer?.invalidate()
         }
 
-        func begin() {
+        func begin(initialState: JoinGroupCallResult.E2EState?) {
             self.scheduledSynchronizeRemovedParticipantsAfterPoll = true
             self.synchronizeRemovedParticipantsTimer = Foundation.Timer.scheduledTimer(withTimeInterval: 10.0, repeats: true, block: { [weak self] _ in
                 guard let self else {
@@ -88,6 +88,13 @@ public final class ConferenceCallE2EContext {
                 self.synchronizeRemovedParticipants()
             })
             
+            if let initialState {
+                self.e2ePoll0Offset = initialState.subChain0.offset
+                self.e2ePoll1Offset = initialState.subChain1.offset
+                self.addE2EBlocks(blocks: initialState.subChain0.blocks, subChainId: 0)
+                self.addE2EBlocks(blocks: initialState.subChain1.blocks, subChainId: 1)
+            }
+            
             self.e2ePoll(subChainId: 0)
             self.e2ePoll(subChainId: 1)
         }
@@ -182,7 +189,6 @@ public final class ConferenceCallE2EContext {
             self.e2eEncryptionKeyHashValue.set(outEmoji.isEmpty ? nil : outEmoji)
             
             for outBlock in outBlocks {
-                //TODO:release queue
                 let _ = self.engine.calls.sendConferenceCallBroadcast(callId: self.callId, accessHash: self.accessHash, block: outBlock).startStandalone()
             }
         }
@@ -400,7 +406,6 @@ public final class ConferenceCallE2EContext {
         }
         
         func kickPeer(id: EnginePeer.Id) {
-            //TODO:release
             if !self.pendingKickPeers.contains(id) {
                 self.pendingKickPeers.append(id)
                 
@@ -426,9 +431,9 @@ public final class ConferenceCallE2EContext {
         })
     }
 
-    public func begin() {
+    public func begin(initialState: JoinGroupCallResult.E2EState?) {
         self.impl.with { impl in
-            impl.begin()
+            impl.begin(initialState: initialState)
         }
     }
 
diff --git a/submodules/TelegramCore/Sources/TelegramEngine/Calls/GroupCalls.swift b/submodules/TelegramCore/Sources/TelegramEngine/Calls/GroupCalls.swift
index 3310d935b2..755d84711b 100644
--- a/submodules/TelegramCore/Sources/TelegramEngine/Calls/GroupCalls.swift
+++ b/submodules/TelegramCore/Sources/TelegramEngine/Calls/GroupCalls.swift
@@ -587,11 +587,22 @@ public struct JoinGroupCallResult {
         case rtc
         case broadcast(isExternalStream: Bool)
     }
+
+    public struct E2EState {
+        public let subChain0: (offset: Int, blocks: [Data])
+        public let subChain1: (offset: Int, blocks: [Data])
+
+        public init(subChain0: (offset: Int, blocks: [Data]), subChain1: (offset: Int, blocks: [Data])) {
+            self.subChain0 = subChain0
+            self.subChain1 = subChain1
+        }
+    }
     
     public var callInfo: GroupCallInfo
     public var state: GroupCallParticipantsContext.State
     public var connectionMode: ConnectionMode
     public var jsonParams: String
+    public var e2eState: E2EState?
 }
 
 public class JoinGroupCallE2E {
@@ -791,7 +802,7 @@ func _internal_joinGroupCall(account: Account, peerId: PeerId?, joinAs: PeerId?,
                         connectionMode = .broadcast(isExternalStream: false)
                     }
                     
-                    return account.postbox.transaction { transaction -> JoinGroupCallResult in
+                    return account.postbox.transaction { transaction -> Signal<JoinGroupCallResult, InternalJoinError> in
                         if let peerId {
                             transaction.updatePeerCachedData(peerIds: Set([peerId]), update: { _, cachedData -> CachedPeerData? in
                                 if let cachedData = cachedData as? CachedChannelData {
@@ -806,6 +817,9 @@ func _internal_joinGroupCall(account: Account, peerId: PeerId?, joinAs: PeerId?,
                         
                         var state = state
                         
+                        var e2eSubChain1State: (offset: Int, blocks: [Data])?
+                        var e2eSubChain0State: (offset: Int, blocks: [Data])?
+                        
                         for update in updates.allUpdates {
                             switch update {
                             case let .updateGroupCallParticipants(_, participants, _):
@@ -852,21 +866,41 @@ func _internal_joinGroupCall(account: Account, peerId: PeerId?, joinAs: PeerId?,
                                         }
                                     }
                                 }
+                            case let .updateGroupCallChainBlocks(_, subChainId, blocks, nextOffset):
+                                if subChainId == 0 {
+                                    e2eSubChain0State = (offset: Int(nextOffset), blocks: blocks.map { $0.makeData() })
+                                } else {
+                                    e2eSubChain1State = (offset: Int(nextOffset), blocks: blocks.map { $0.makeData() })
+                                }
                             default:
                                 break
                             }
                         }
+
+                        var e2eState: JoinGroupCallResult.E2EState?
+                        if let e2eSubChain0State, let e2eSubChain1State {
+                            e2eState = JoinGroupCallResult.E2EState(
+                                subChain0: e2eSubChain0State,
+                                subChain1: e2eSubChain1State
+                            )
+                        }
+
+                        if generateE2E != nil && e2eState == nil {
+                            return .fail(.error(.generic))
+                        }
                         
                         state.participants.sort(by: { GroupCallParticipantsContext.Participant.compare(lhs: $0, rhs: $1, sortAscending: state.sortAscending) })
                         
-                        return JoinGroupCallResult(
+                        return .single(JoinGroupCallResult(
                             callInfo: parsedCall,
                             state: state,
                             connectionMode: connectionMode,
-                            jsonParams: parsedClientParams
-                        )
+                            jsonParams: parsedClientParams,
+                            e2eState: e2eState
+                        ))
                     }
                     |> castError(InternalJoinError.self)
+                    |> switchToLatest
                 }
             }
         }
@@ -882,13 +916,19 @@ func _internal_joinGroupCall(account: Account, peerId: PeerId?, joinAs: PeerId?,
     }
 }
 
-func _internal_inviteConferenceCallParticipant(account: Account, reference: InternalGroupCallReference, peerId: EnginePeer.Id, isVideo: Bool) -> Signal<MessageId?, NoError> {
+public enum InviteConferenceCallParticipantError {
+    case generic
+    case privacy(peer: EnginePeer?)
+}
+
+func _internal_inviteConferenceCallParticipant(account: Account, reference: InternalGroupCallReference, peerId: EnginePeer.Id, isVideo: Bool) -> Signal<MessageId, InviteConferenceCallParticipantError> {
     return account.postbox.transaction { transaction -> Api.InputUser? in
         return transaction.getPeer(peerId).flatMap(apiInputUser)
     }
-    |> mapToSignal { inputPeer -> Signal<MessageId?, NoError> in
+    |> castError(InviteConferenceCallParticipantError.self)
+    |> mapToSignal { inputPeer -> Signal<MessageId, InviteConferenceCallParticipantError> in
         guard let inputPeer else {
-            return .complete()
+            return .fail(.generic)
         }
         
         var flags: Int32 = 0
@@ -897,17 +937,26 @@ func _internal_inviteConferenceCallParticipant(account: Account, reference: Inte
         }
         return account.network.request(Api.functions.phone.inviteConferenceCallParticipant(flags: flags, call: reference.apiInputGroupCall, userId: inputPeer))
         |> map(Optional.init)
-        |> `catch` { _ -> Signal<Api.Updates?, NoError> in
-            return .single(nil)
+        |> `catch` { error -> Signal<Api.Updates?, InviteConferenceCallParticipantError> in
+            if error.errorDescription == "USER_PRIVACY_RESTRICTED" {
+                return account.postbox.transaction { transaction -> InviteConferenceCallParticipantError in
+                    return .privacy(peer: transaction.getPeer(peerId).flatMap(EnginePeer.init))
+                }
+                |> castError(InviteConferenceCallParticipantError.self)
+                |> mapToSignal { error -> Signal<Api.Updates?, InviteConferenceCallParticipantError> in
+                    return .fail(error)
+                }
+            }
+            return .fail(.generic)
         }
-        |> mapToSignal { result -> Signal<MessageId?, NoError> in
+        |> mapToSignal { result -> Signal<MessageId, InviteConferenceCallParticipantError> in
             if let result {
                 account.stateManager.addUpdates(result)
                 if let message = result.messageIds.first {
                     return .single(message)
                 }
             }
-            return .single(nil)
+            return .fail(.generic)
         }
     }
 }
diff --git a/submodules/TelegramCore/Sources/TelegramEngine/Calls/TelegramEngineCalls.swift b/submodules/TelegramCore/Sources/TelegramEngine/Calls/TelegramEngineCalls.swift
index bc107740dd..77fc5f7ffc 100644
--- a/submodules/TelegramCore/Sources/TelegramEngine/Calls/TelegramEngineCalls.swift
+++ b/submodules/TelegramCore/Sources/TelegramEngine/Calls/TelegramEngineCalls.swift
@@ -109,7 +109,7 @@ public extension TelegramEngine {
             return _internal_sendConferenceCallBroadcast(account: self.account, callId: callId, accessHash: accessHash, block: block)
         }
         
-        public func inviteConferenceCallParticipant(reference: InternalGroupCallReference, peerId: EnginePeer.Id, isVideo: Bool) -> Signal<EngineMessage.Id?, NoError> {
+        public func inviteConferenceCallParticipant(reference: InternalGroupCallReference, peerId: EnginePeer.Id, isVideo: Bool) -> Signal<EngineMessage.Id, InviteConferenceCallParticipantError> {
             return _internal_inviteConferenceCallParticipant(account: self.account, reference: reference, peerId: peerId, isVideo: isVideo)
         }
         
diff --git a/submodules/TelegramPresentationData/Sources/Resources/PresentationResourceKey.swift b/submodules/TelegramPresentationData/Sources/Resources/PresentationResourceKey.swift
index 6afe54e1d7..2dea72f9a3 100644
--- a/submodules/TelegramPresentationData/Sources/Resources/PresentationResourceKey.swift
+++ b/submodules/TelegramPresentationData/Sources/Resources/PresentationResourceKey.swift
@@ -336,6 +336,8 @@ public enum PresentationResourceKey: Int32 {
     case peerStatusLockedImage
     case expandDownArrowImage
     case expandSmallDownArrowImage
+    
+    case callListCallIcon
 }
 
 public enum ChatExpiredStoryIndicatorType: Hashable {
diff --git a/submodules/TelegramPresentationData/Sources/Resources/PresentationResourcesRootController.swift b/submodules/TelegramPresentationData/Sources/Resources/PresentationResourcesRootController.swift
index 0e4915686b..d486af773d 100644
--- a/submodules/TelegramPresentationData/Sources/Resources/PresentationResourcesRootController.swift
+++ b/submodules/TelegramPresentationData/Sources/Resources/PresentationResourcesRootController.swift
@@ -199,4 +199,10 @@ public struct PresentationResourcesRootController {
             return generateTintedImage(image: UIImage(bundleImageName: "Peer Info/SortIcon"), color: .white)
         })
     }
+    
+    public static func callListCallIcon(_ theme: PresentationTheme) -> UIImage? {
+        return theme.image(PresentationResourceKey.callListCallIcon.rawValue, { theme in
+            return generateTintedImage(image: UIImage(bundleImageName: "Call List/NewCallListIcon"), color: theme.rootController.navigationBar.accentTextColor)
+        })
+    }
 }
diff --git a/submodules/TelegramStringFormatting/Sources/ServiceMessageStrings.swift b/submodules/TelegramStringFormatting/Sources/ServiceMessageStrings.swift
index f48614ca94..f2c557eb9a 100644
--- a/submodules/TelegramStringFormatting/Sources/ServiceMessageStrings.swift
+++ b/submodules/TelegramStringFormatting/Sources/ServiceMessageStrings.swift
@@ -616,9 +616,27 @@ public func universalServiceMessageString(presentationData: (PresentationTheme,
                     }
                 }
                 attributedString = NSAttributedString(string: titleString, font: titleFont, textColor: primaryTextColor)
-            case .conferenceCall:
-                //TODO:localize
-                let titleString = "Group call"
+            case let .conferenceCall(conferenceCall):
+                var titleString: String
+                let incoming = message.flags.contains(.Incoming)
+                
+                let missedTimeout: Int32 = 30
+                let currentTime = Int32(Date().timeIntervalSince1970)
+                
+                if conferenceCall.flags.contains(.isMissed) {
+                    titleString = strings.Chat_CallMessage_DeclinedGroupCall
+                } else if message.timestamp < currentTime - missedTimeout {
+                    titleString = strings.Chat_CallMessage_MissedGroupCall
+                } else if conferenceCall.duration != nil {
+                    titleString = strings.Chat_CallMessage_CancelledGroupCall
+                } else {
+                    if incoming {
+                        titleString = strings.Chat_CallMessage_IncomingGroupCall
+                    } else {
+                        titleString = strings.Chat_CallMessage_OutgoingGroupCall
+                    }
+                }
+
                 attributedString = NSAttributedString(string: titleString, font: titleFont, textColor: primaryTextColor)
             case let .groupPhoneCall(_, _, scheduleDate, duration):
                 if let scheduleDate = scheduleDate {
diff --git a/submodules/TelegramUI/Components/Chat/ChatMessageCallBubbleContentNode/Sources/ChatMessageCallBubbleContentNode.swift b/submodules/TelegramUI/Components/Chat/ChatMessageCallBubbleContentNode/Sources/ChatMessageCallBubbleContentNode.swift
index 03136f8bde..29f242f634 100644
--- a/submodules/TelegramUI/Components/Chat/ChatMessageCallBubbleContentNode/Sources/ChatMessageCallBubbleContentNode.swift
+++ b/submodules/TelegramUI/Components/Chat/ChatMessageCallBubbleContentNode/Sources/ChatMessageCallBubbleContentNode.swift
@@ -153,8 +153,7 @@ public class ChatMessageCallBubbleContentNode: ChatMessageBubbleContentNode {
                         callDuration = conferenceCall.duration
 
                         if conferenceCall.otherParticipants.count > 0 {
-                            //TODO:localize
-                            peopleTextString = "\(conferenceCall.otherParticipants.count + 1) people"
+                            peopleTextString = item.presentationData.strings.Chat_CallMessage_GroupCallParticipantCount(Int32(conferenceCall.otherParticipants.count + 1))
                             if let peer = item.message.author {
                                 peopleAvatars.append(peer)
                             }
@@ -165,9 +164,8 @@ public class ChatMessageCallBubbleContentNode: ChatMessageBubbleContentNode {
                             }
                         }
 
-                        //TODO:localize
                         let missedTimeout: Int32
-                        #if DEBUG
+                        #if DEBUG && false
                         missedTimeout = 5
                         #else
                         missedTimeout = 30
@@ -175,16 +173,16 @@ public class ChatMessageCallBubbleContentNode: ChatMessageBubbleContentNode {
                         
                         let currentTime = Int32(Date().timeIntervalSince1970)
                         if conferenceCall.flags.contains(.isMissed) {
-                            titleString = "Declined Group Call"
+                            titleString = item.presentationData.strings.Chat_CallMessage_DeclinedGroupCall
                         } else if item.message.timestamp < currentTime - missedTimeout {
-                            titleString = "Missed Group Call"
+                            titleString = item.presentationData.strings.Chat_CallMessage_MissedGroupCall
                         } else if conferenceCall.duration != nil {
-                            titleString = "Cancelled Group Call"
+                            titleString = item.presentationData.strings.Chat_CallMessage_CancelledGroupCall
                         } else {
                             if incoming {
-                                titleString = "Incoming Group Call"
+                                titleString = item.presentationData.strings.Chat_CallMessage_IncomingGroupCall
                             } else {
-                                titleString = "Outgoing Group Call"
+                                titleString = item.presentationData.strings.Chat_CallMessage_OutgoingGroupCall
                             }
                             updateConferenceTimerEndTimeout = (item.message.timestamp + missedTimeout) - currentTime
                         }
@@ -280,7 +278,7 @@ public class ChatMessageCallBubbleContentNode: ChatMessageBubbleContentNode {
                 var avatarsWidth: CGFloat = 0.0
                 if !peopleAvatars.isEmpty {
                     avatarsWidth += avatarsLeftInset
-                    avatarsWidth += 1.0 * peopleAvatarSize + CGFloat(peopleAvatars.count - 1) * peopleAvatarSpacing
+                    avatarsWidth += 1.0 * peopleAvatarSize + CGFloat(min(3, peopleAvatars.count) - 1) * peopleAvatarSpacing
                     avatarsWidth += avatarsRightInset
                     labelsWidth += avatarsWidth
                 }
diff --git a/submodules/TelegramUI/Components/Chat/ChatMessageWebpageBubbleContentNode/Sources/ChatMessageWebpageBubbleContentNode.swift b/submodules/TelegramUI/Components/Chat/ChatMessageWebpageBubbleContentNode/Sources/ChatMessageWebpageBubbleContentNode.swift
index bc905b9149..70025dff94 100644
--- a/submodules/TelegramUI/Components/Chat/ChatMessageWebpageBubbleContentNode/Sources/ChatMessageWebpageBubbleContentNode.swift
+++ b/submodules/TelegramUI/Components/Chat/ChatMessageWebpageBubbleContentNode/Sources/ChatMessageWebpageBubbleContentNode.swift
@@ -475,8 +475,7 @@ public final class ChatMessageWebpageBubbleContentNode: ChatMessageBubbleContent
                             text = nil
                             entities = nil
                         case "telegram_call":
-                            //TODO:localize
-                            actionTitle = "JOIN GROUP CALL"
+                            actionTitle = item.presentationData.strings.Chat_ViewGroupCall
                         default:
                             break
                     }
diff --git a/submodules/TelegramUI/Components/JoinSubjectScreen/Sources/JoinSubjectScreen.swift b/submodules/TelegramUI/Components/JoinSubjectScreen/Sources/JoinSubjectScreen.swift
index 5f03c035fe..042be113c0 100644
--- a/submodules/TelegramUI/Components/JoinSubjectScreen/Sources/JoinSubjectScreen.swift
+++ b/submodules/TelegramUI/Components/JoinSubjectScreen/Sources/JoinSubjectScreen.swift
@@ -490,7 +490,7 @@ private final class JoinSubjectScreenComponent: Component {
                 contentHeight += 31.0
 
                 titleString = group.title
-                subtitleString = group.isPublic ? "public group" : "private group"
+                subtitleString = group.isPublic ? environment.strings.Invitation_PublicGroup : environment.strings.Invitation_PrivateGroup
                 descriptionTextString = group.about
 
                 previewPeers = group.members
@@ -528,10 +528,9 @@ private final class JoinSubjectScreenComponent: Component {
                 }
                 contentHeight += peerAvatarSize.height + 21.0
             case let .groupCall(groupCall):
-                //TODO:localize
-                titleString = "Group Call"
+                titleString = environment.strings.Invitation_GroupCall
                 subtitleString = nil
-                descriptionTextString = "You are invited to join a group call."
+                descriptionTextString = environment.strings.Invitation_GroupCall_Text
 
                 previewPeers = groupCall.members
                 totalMemberCount = groupCall.totalMemberCount
@@ -691,12 +690,11 @@ private final class JoinSubjectScreenComponent: Component {
             if !previewPeers.isEmpty {
                 contentHeight += 11.0
 
-                //TODO:localize
                 let previewPeersString: String
                 switch component.mode {
                 case .group:
                     if previewPeers.count == 1 {
-                        previewPeersString = "**\(previewPeers[0].compactDisplayTitle)** already joined this group."
+                        previewPeersString = environment.strings.Invitation_Group_AlreadyJoinedSingle(previewPeers[0].compactDisplayTitle).string
                     } else {
                         let firstPeers = previewPeers.prefix(upTo: 2)
                         let peersTextArray = firstPeers.map { "**\($0.compactDisplayTitle)**" }
@@ -717,14 +715,14 @@ private final class JoinSubjectScreenComponent: Component {
                             }
                         }
                         if totalMemberCount > firstPeers.count {
-                            previewPeersString = "\(peersText) and **\(totalMemberCount - firstPeers.count)** other people already joined this group."
+                            previewPeersString = environment.strings.Invitation_Group_AlreadyJoinedMultipleWithCount(Int32(totalMemberCount - firstPeers.count)).replacingOccurrences(of: "{}", with: peersText)
                         } else {
-                            previewPeersString = "\(peersText) already joined this group."
+                            previewPeersString = environment.strings.Invitation_Group_AlreadyJoinedMultiple(peersText).string
                         }
                     }
                 case .groupCall:
                     if previewPeers.count == 1 {
-                        previewPeersString = "**\(previewPeers[0].compactDisplayTitle)** already joined this call."
+                        previewPeersString = environment.strings.Invitation_GroupCall_AlreadyJoinedSingle(previewPeers[0].compactDisplayTitle).string
                     } else {
                         let firstPeers = previewPeers.prefix(upTo: 2)
                         let peersTextArray = firstPeers.map { "**\($0.compactDisplayTitle)**" }
@@ -745,9 +743,9 @@ private final class JoinSubjectScreenComponent: Component {
                             }
                         }
                         if totalMemberCount > firstPeers.count {
-                            previewPeersString = "\(peersText) and **\(totalMemberCount - firstPeers.count)** other people already joined this call."
+                            previewPeersString = environment.strings.Invitation_GroupCall_AlreadyJoinedMultipleWithCount(Int32(totalMemberCount - firstPeers.count)).replacingOccurrences(of: "{}", with: peersText)
                         } else {
-                            previewPeersString = "\(peersText) already joined this call."
+                            previewPeersString = environment.strings.Invitation_GroupCall_AlreadyJoinedMultiple(peersText).string
                         }
                     }
                 }
@@ -854,8 +852,7 @@ private final class JoinSubjectScreenComponent: Component {
             case .group:
                 actionButtonTitle = environment.strings.Invitation_JoinGroup
             case .groupCall:
-                //TODO:localize
-                actionButtonTitle = "Join Group Call"
+                actionButtonTitle = environment.strings.Invitation_JoinGroupCall
             }
             let actionButtonSize = self.actionButton.update(
                 transition: transition,
diff --git a/submodules/TelegramUI/Components/PeerInfo/PeerInfoScreen/Sources/PeerInfoScreen.swift b/submodules/TelegramUI/Components/PeerInfo/PeerInfoScreen/Sources/PeerInfoScreen.swift
index fabc13e616..ebd3998789 100644
--- a/submodules/TelegramUI/Components/PeerInfo/PeerInfoScreen/Sources/PeerInfoScreen.swift
+++ b/submodules/TelegramUI/Components/PeerInfo/PeerInfoScreen/Sources/PeerInfoScreen.swift
@@ -11118,7 +11118,7 @@ final class PeerInfoScreenNode: ViewControllerTracingNode, PeerInfoScreenNodePro
                 giftsContext?.updateSorting(sorting == .date ? .value : .date)
             })))
             
-            if hasPinnedGifts && hasVisibility {
+            if hasPinnedGifts {
                 items.append(.action(ContextMenuActionItem(text: strings.PeerInfo_Gifts_Reorder, icon: { theme in
                     return generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/ReorderItems"), color: theme.contextMenu.primaryColor)
                 }, action: { _, f in
diff --git a/submodules/TelegramUI/Components/PeerSelectionController/Sources/PeerSelectionControllerNode.swift b/submodules/TelegramUI/Components/PeerSelectionController/Sources/PeerSelectionControllerNode.swift
index 1f027a0b52..bf71406a8c 100644
--- a/submodules/TelegramUI/Components/PeerSelectionController/Sources/PeerSelectionControllerNode.swift
+++ b/submodules/TelegramUI/Components/PeerSelectionController/Sources/PeerSelectionControllerNode.swift
@@ -1330,7 +1330,7 @@ final class PeerSelectionControllerNode: ASDisplayNode {
             if self.hasGlobalSearch {
                 categories.insert(.global)
             }
-            self.searchDisplayController = SearchDisplayController(presentationData: self.presentationData, contentNode: ContactsSearchContainerNode(context: self.context, updatedPresentationData: self.updatedPresentationData, onlyWriteable: true, categories: categories, addContact: nil, openPeer: { [weak self] peer in
+            self.searchDisplayController = SearchDisplayController(presentationData: self.presentationData, contentNode: ContactsSearchContainerNode(context: self.context, updatedPresentationData: self.updatedPresentationData, onlyWriteable: true, categories: categories, addContact: nil, openPeer: { [weak self] peer, _ in
                 if let strongSelf = self {
                     var updated = false
                     var count = 0
diff --git a/submodules/TelegramUI/Components/Stories/StoryContainerScreen/Sources/StoryItemSetContainerViewSendMessage.swift b/submodules/TelegramUI/Components/Stories/StoryContainerScreen/Sources/StoryItemSetContainerViewSendMessage.swift
index 3f256ea534..2979941dea 100644
--- a/submodules/TelegramUI/Components/Stories/StoryContainerScreen/Sources/StoryItemSetContainerViewSendMessage.swift
+++ b/submodules/TelegramUI/Components/Stories/StoryContainerScreen/Sources/StoryItemSetContainerViewSendMessage.swift
@@ -1722,7 +1722,7 @@ final class StoryItemSetContainerSendMessage {
                     case .contact:
                         let theme = component.theme
                         let updatedPresentationData: (initial: PresentationData, signal: Signal<PresentationData, NoError>) = (component.context.sharedContext.currentPresentationData.with({ $0 }).withUpdated(theme: theme), component.context.sharedContext.presentationData |> map { $0.withUpdated(theme: theme) })
-                        let contactsController = component.context.sharedContext.makeContactSelectionController(ContactSelectionControllerParams(context: component.context, updatedPresentationData: updatedPresentationData, title: { $0.Contacts_Title }, displayDeviceContacts: true, multipleSelection: true))
+                        let contactsController = component.context.sharedContext.makeContactSelectionController(ContactSelectionControllerParams(context: component.context, updatedPresentationData: updatedPresentationData, title: { $0.Contacts_Title }, displayDeviceContacts: true, multipleSelection: .always))
                         contactsController.presentScheduleTimePicker = { [weak self, weak view] completion in
                             guard let self, let view else {
                                 return
diff --git a/submodules/TelegramUI/Images.xcassets/Call List/NewCallListIcon.imageset/Contents.json b/submodules/TelegramUI/Images.xcassets/Call List/NewCallListIcon.imageset/Contents.json
new file mode 100644
index 0000000000..91489efbe6
--- /dev/null
+++ b/submodules/TelegramUI/Images.xcassets/Call List/NewCallListIcon.imageset/Contents.json	
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "filename" : "newcall_30.pdf",
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/submodules/TelegramUI/Images.xcassets/Call List/NewCallListIcon.imageset/newcall_30.pdf b/submodules/TelegramUI/Images.xcassets/Call List/NewCallListIcon.imageset/newcall_30.pdf
new file mode 100644
index 0000000000..4a915649db
Binary files /dev/null and b/submodules/TelegramUI/Images.xcassets/Call List/NewCallListIcon.imageset/newcall_30.pdf differ
diff --git a/submodules/TelegramUI/Sources/AppDelegate.swift b/submodules/TelegramUI/Sources/AppDelegate.swift
index 5184a47089..299138d62f 100644
--- a/submodules/TelegramUI/Sources/AppDelegate.swift
+++ b/submodules/TelegramUI/Sources/AppDelegate.swift
@@ -1977,6 +1977,22 @@ private func extractAccountManagerState(records: AccountRecordsView<TelegramAcco
         self.maybeCheckForUpdates()
         
         SharedDisplayLinkDriver.shared.updateForegroundState(self.isActiveValue)
+        
+        func cancelWindowPanGestures(view: UIView) {
+            if let gestureRecognizers = view.gestureRecognizers {
+                for recognizer in gestureRecognizers {
+                    if let recognizer = recognizer as? WindowPanRecognizer {
+                        recognizer.cancel()
+                    }
+                }
+            }
+            
+            for subview in view.subviews {
+                cancelWindowPanGestures(view: subview)
+            }
+        }
+        
+        //cancelWindowPanGestures(view: self.mainWindow.hostView.containerView)
     }
     
     func applicationWillTerminate(_ application: UIApplication) {
@@ -2164,14 +2180,18 @@ private func extractAccountManagerState(records: AccountRecordsView<TelegramAcco
             
             let internalId = CallSessionManager.getStableIncomingUUID(peerId: fromPeerId.id._internalGetInt64Value(), messageId: messageId.id)
             
-            //TODO:localize
-            var displayTitle = "\(fromTitle)"
+            var strings: PresentationStrings = defaultPresentationStrings
+            let _ = (self.sharedContextPromise.get()
+            |> take(1)
+            |> deliverOnMainQueue).start(next: { sharedApplicationContext in
+                strings = sharedApplicationContext.sharedContext.currentPresentationData.with { $0.strings }
+            })
+
+            let displayTitle: String
             if let memberCountString = payloadJson["member_count"] as? String, let memberCount = Int(memberCountString) {
-                if memberCount == 1 {
-                    displayTitle.append(" and 1 other")
-                } else {
-                    displayTitle.append(" and \(memberCount) others")
-                }
+                displayTitle = strings.Call_IncomingGroupCallTitle_Multiple(Int32(memberCount)).replacingOccurrences(of: "{}", with: fromTitle)
+            } else {
+                displayTitle = strings.Call_IncomingGroupCallTitle_Single(fromTitle).string
             }
             
             callKitIntegration.reportIncomingCall(
diff --git a/submodules/TelegramUI/Sources/ChatController.swift b/submodules/TelegramUI/Sources/ChatController.swift
index f09798f46f..7bf2eaaf26 100644
--- a/submodules/TelegramUI/Sources/ChatController.swift
+++ b/submodules/TelegramUI/Sources/ChatController.swift
@@ -2898,7 +2898,7 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                 return
             }
             
-            if let currentGroupCallController = self.context.sharedContext as? VoiceChatController, case let .group(groupCall) = currentGroupCallController.call, let currentCallId = groupCall.callId, currentCallId == conferenceCall.callId {
+            if let currentGroupCallController = self.context.sharedContext.currentGroupCallController as? VoiceChatController, case let .group(groupCall) = currentGroupCallController.call, let currentCallId = groupCall.callId, currentCallId == conferenceCall.callId {
                 self.context.sharedContext.navigateToCurrentCall()
                 return
             }
@@ -2932,8 +2932,7 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
                     self.context.sharedContext.openCreateGroupCallUI(context: self.context, peerIds: conferenceCall.otherParticipants, parentController: self)
                 default:
                     let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
-                    //TODO:localize
-                    self.present(textAlertController(context: self.context, title: nil, text: "An error occurred", actions: [TextAlertAction(type: .defaultAction, title: presentationData.strings.Common_OK, action: {})]), in: .window(.root))
+                    self.present(textAlertController(context: self.context, title: nil, text: presentationData.strings.Login_UnknownError, actions: [TextAlertAction(type: .defaultAction, title: presentationData.strings.Common_OK, action: {})]), in: .window(.root))
                 }
             })
         }, longTap: { [weak self] action, params in
@@ -7513,17 +7512,20 @@ public final class ChatControllerImpl: TelegramBaseController, ChatController, G
         navigationController.pushViewController(self, animated: false)
         
         let updatedLayout = self.validLayout
-        let updatedFrame = self.view.frame
         
         if let initialLayout, let updatedLayout, transition.isAnimated {
             let initialView = self.view.superview
+            let updatedFrame = self.view.convert(self.view.bounds, to: navigationController.view)
             navigationController.view.addSubview(self.view)
             
             self.view.clipsToBounds = true
             self.view.frame = initialFrame
             self.containerLayoutUpdated(initialLayout, transition: .immediate)
             self.containerLayoutUpdated(updatedLayout, transition: transition)
-            
+            self.chatDisplayNode.historyNode.layer.animateScaleX(from: initialLayout.size.width / updatedLayout.size.width, to: 1.0, duration: 0.4, timingFunction: kCAMediaTimingFunctionSpring)
+            self.chatDisplayNode.historyNode.layer.animatePosition(from: CGPoint(x: (updatedLayout.size.width - initialLayout.size.width) / 2.0, y: 0.0), to: .zero, duration: 0.4, timingFunction: kCAMediaTimingFunctionSpring, additive: true)
+            self.chatDisplayNode.inputPanelBackgroundNode.layer.removeAllAnimations()
+            self.chatDisplayNode.inputPanelBackgroundNode.layer.animatePosition(from: CGPoint(x: 0.0, y: self.chatDisplayNode.inputPanelNode?.frame.height ?? 45.0), to: .zero, duration: 0.4, timingFunction: kCAMediaTimingFunctionSpring, additive: true)
             self.view.layer.animate(from: 14.0, to: updatedLayout.deviceMetrics.screenCornerRadius, keyPath: "cornerRadius", timingFunction: kCAMediaTimingFunctionSpring, duration: 0.4)
             
             transition.updateFrame(view: self.view, frame: updatedFrame, completion: { _ in
diff --git a/submodules/TelegramUI/Sources/ChatControllerNode.swift b/submodules/TelegramUI/Sources/ChatControllerNode.swift
index d9f6f31874..169a288c11 100644
--- a/submodules/TelegramUI/Sources/ChatControllerNode.swift
+++ b/submodules/TelegramUI/Sources/ChatControllerNode.swift
@@ -190,7 +190,7 @@ class ChatControllerNode: ASDisplayNode, ASScrollViewDelegate {
     let inputPanelContainerNode: ChatInputPanelContainer
     private let inputPanelOverlayNode: SparseNode
     private let inputPanelClippingNode: SparseNode
-    private let inputPanelBackgroundNode: NavigationBackgroundNode
+    let inputPanelBackgroundNode: NavigationBackgroundNode
     
     private var navigationBarBackgroundContent: WallpaperBubbleBackgroundNode?
     private var inputPanelBackgroundContent: WallpaperBubbleBackgroundNode?
@@ -1880,9 +1880,9 @@ class ChatControllerNode: ASDisplayNode, ASScrollViewDelegate {
             displayMode = .aspectFit
         } else if case .compact = layout.metrics.widthClass {
             if layout.size.width < layout.size.height && layout.size.height < layout.deviceMetrics.screenSize.height {
-                wallpaperBounds.size.height = layout.deviceMetrics.screenSize.height
+                wallpaperBounds.size = layout.deviceMetrics.screenSize
             } else if layout.size.width > layout.size.height && layout.size.height < layout.deviceMetrics.screenSize.width {
-                wallpaperBounds.size.height = layout.deviceMetrics.screenSize.width
+                wallpaperBounds.size = layout.deviceMetrics.screenSize
             }
         }
         self.backgroundNode.updateLayout(size: wallpaperBounds.size, displayMode: displayMode, transition: transition)
@@ -2296,13 +2296,21 @@ class ChatControllerNode: ASDisplayNode, ASScrollViewDelegate {
         self.navigateButtons.update(rect: apparentNavigateButtonsFrame, within: layout.size, transition: transition)
     
         if let titleAccessoryPanelNode = self.titleAccessoryPanelNode, let titleAccessoryPanelFrame, !titleAccessoryPanelNode.frame.equalTo(titleAccessoryPanelFrame) {
+            let previousFrame = titleAccessoryPanelNode.frame
             titleAccessoryPanelNode.frame = titleAccessoryPanelFrame
-            transition.animatePositionAdditive(node: titleAccessoryPanelNode, offset: CGPoint(x: 0.0, y: -titleAccessoryPanelFrame.height))
+            if transition.isAnimated && previousFrame.width != titleAccessoryPanelFrame.width {
+            } else {
+                transition.animatePositionAdditive(node: titleAccessoryPanelNode, offset: CGPoint(x: 0.0, y: -titleAccessoryPanelFrame.height))
+            }
         }
         
         if let chatTranslationPanel = self.chatTranslationPanel, let translationPanelFrame, !chatTranslationPanel.frame.equalTo(translationPanelFrame) {
+            let previousFrame = chatTranslationPanel.frame
             chatTranslationPanel.frame = translationPanelFrame
-            transition.animatePositionAdditive(node: chatTranslationPanel, offset: CGPoint(x: 0.0, y: -translationPanelFrame.height))
+            if transition.isAnimated && previousFrame.width != translationPanelFrame.width {
+            } else {
+                transition.animatePositionAdditive(node: chatTranslationPanel, offset: CGPoint(x: 0.0, y: -translationPanelFrame.height))
+            }
         }
         
         if let chatImportStatusPanel = self.chatImportStatusPanel, let importStatusPanelFrame, !chatImportStatusPanel.frame.equalTo(importStatusPanelFrame) {
diff --git a/submodules/TelegramUI/Sources/ChatControllerOpenAttachmentMenu.swift b/submodules/TelegramUI/Sources/ChatControllerOpenAttachmentMenu.swift
index 7f6a694b9b..94670977dc 100644
--- a/submodules/TelegramUI/Sources/ChatControllerOpenAttachmentMenu.swift
+++ b/submodules/TelegramUI/Sources/ChatControllerOpenAttachmentMenu.swift
@@ -424,7 +424,7 @@ extension ChatControllerImpl {
                         let _ = currentLocationController.swap(controller)
                     })
                 case .contact:
-                    let contactsController = ContactSelectionControllerImpl(ContactSelectionControllerParams(context: strongSelf.context, updatedPresentationData: strongSelf.updatedPresentationData, title: { $0.Contacts_Title }, displayDeviceContacts: true, multipleSelection: true, requirePhoneNumbers: true))
+                    let contactsController = ContactSelectionControllerImpl(ContactSelectionControllerParams(context: strongSelf.context, updatedPresentationData: strongSelf.updatedPresentationData, title: { $0.Contacts_Title }, displayDeviceContacts: true, multipleSelection: .always, requirePhoneNumbers: true))
                     contactsController.presentScheduleTimePicker = { [weak self] completion in
                         if let strongSelf = self {
                             strongSelf.presentScheduleTimePicker(completion: completion)
@@ -1620,7 +1620,7 @@ extension ChatControllerImpl {
     }
     
     func presentContactPicker() {
-        let contactsController = ContactSelectionControllerImpl(ContactSelectionControllerParams(context: self.context, updatedPresentationData: self.updatedPresentationData, title: { $0.Contacts_Title }, displayDeviceContacts: true, multipleSelection: true))
+        let contactsController = ContactSelectionControllerImpl(ContactSelectionControllerParams(context: self.context, updatedPresentationData: self.updatedPresentationData, title: { $0.Contacts_Title }, displayDeviceContacts: true, multipleSelection: .always))
         contactsController.navigationPresentation = .modal
         self.chatDisplayNode.dismissInput()
         self.effectiveNavigationController?.pushViewController(contactsController)
diff --git a/submodules/TelegramUI/Sources/ComposeControllerNode.swift b/submodules/TelegramUI/Sources/ComposeControllerNode.swift
index 6bb6a6b24b..20ec24de5b 100644
--- a/submodules/TelegramUI/Sources/ComposeControllerNode.swift
+++ b/submodules/TelegramUI/Sources/ComposeControllerNode.swift
@@ -120,7 +120,7 @@ final class ComposeControllerNode: ASDisplayNode {
             return
         }
         
-        self.searchDisplayController = SearchDisplayController(presentationData: self.presentationData, contentNode: ContactsSearchContainerNode(context: self.context, onlyWriteable: false, categories: [.cloudContacts, .global], addContact: nil, openPeer: { [weak self] peer in
+        self.searchDisplayController = SearchDisplayController(presentationData: self.presentationData, contentNode: ContactsSearchContainerNode(context: self.context, onlyWriteable: false, categories: [.cloudContacts, .global], addContact: nil, openPeer: { [weak self] peer, _ in
             if let requestOpenPeerFromSearch = self?.requestOpenPeerFromSearch, case let .peer(peer, _, _) = peer {
                 requestOpenPeerFromSearch(peer.id)
             }
diff --git a/submodules/TelegramUI/Sources/ContactMultiselectionController.swift b/submodules/TelegramUI/Sources/ContactMultiselectionController.swift
index 31ffa8fc5f..82301ad2df 100644
--- a/submodules/TelegramUI/Sources/ContactMultiselectionController.swift
+++ b/submodules/TelegramUI/Sources/ContactMultiselectionController.swift
@@ -265,6 +265,10 @@ class ContactMultiselectionControllerImpl: ViewController, ContactMultiselection
             if isCall && count == 0 {
                 self.titleView.title = CounterControllerTitle(title: self.params.title ?? self.presentationData.strings.Compose_NewGroupTitle, counter: nil)
             } else {
+                var count = count
+                if isCall {
+                    count += 1
+                }
                 self.titleView.title = CounterControllerTitle(title: self.params.title ?? self.presentationData.strings.Compose_NewGroupTitle, counter: "\(count)/\(maxCount)")
             }
             if self.rightNavigationButton == nil && !isCall {
diff --git a/submodules/TelegramUI/Sources/ContactMultiselectionControllerNode.swift b/submodules/TelegramUI/Sources/ContactMultiselectionControllerNode.swift
index 58fa17ca74..3a2d3bc9cd 100644
--- a/submodules/TelegramUI/Sources/ContactMultiselectionControllerNode.swift
+++ b/submodules/TelegramUI/Sources/ContactMultiselectionControllerNode.swift
@@ -131,11 +131,10 @@ final class ContactMultiselectionControllerNode: ASDisplayNode {
             }, checkOptionTitle: nil)
         case let .groupCreation(isCall):
             if isCall {
-                //TODO:localize
-                placeholder = "Search for contacts or usernames"
+                placeholder = self.presentationData.strings.NewCall_SearchPlaceholder
                 self.footerPanelNode = FooterPanelNode(theme: self.presentationData.theme, strings: self.presentationData.strings, action: {
                     proceedImpl?()
-                }, checkOptionTitle: isCall ? "Call with video enabled" : nil)
+                }, checkOptionTitle: self.presentationData.strings.NewCall_VideoOption)
             } else {
                 placeholder = self.presentationData.strings.Compose_TokenListPlaceholder    
                 self.footerPanelNode = nil
@@ -483,15 +482,14 @@ final class ContactMultiselectionControllerNode: ASDisplayNode {
                 count = contactListNode.selectionState?.selectedPeerIndices.count ?? 0
             }
             if case let .groupCreation(isCall) = self.mode, isCall {
-                //TODO:localize
                 if count == 0 {
                     // Don't set anything to prevent state update
                 } else if count <= 1 {
                     let callTitle: String
                     if case let .contacts(contactListNode) = self.contentNode, let peer = contactListNode.selectedPeers.first, case let .peer(peer, _, _) = peer {
-                        callTitle = "Call \(EnginePeer(peer).compactDisplayTitle)"
+                        callTitle = self.presentationData.strings.NewCall_ActionCallSingle(EnginePeer(peer).compactDisplayTitle).string
                     } else {
-                        callTitle = "Call"
+                        callTitle = self.presentationData.strings.NewCall_ActionCallMultiple
                     }
                     footerPanelNode.content = FooterPanelNode.Content(title: callTitle, badge: "")
                 } else {
diff --git a/submodules/TelegramUI/Sources/ContactSelectionController.swift b/submodules/TelegramUI/Sources/ContactSelectionController.swift
index 0cb897a7d2..a0946cb004 100644
--- a/submodules/TelegramUI/Sources/ContactSelectionController.swift
+++ b/submodules/TelegramUI/Sources/ContactSelectionController.swift
@@ -40,7 +40,7 @@ class ContactSelectionControllerImpl: ViewController, ContactSelectionController
     private let options: Signal<[ContactListAdditionalOption], NoError>
     private let displayDeviceContacts: Bool
     private let displayCallIcons: Bool
-    private let multipleSelection: Bool
+    private let multipleSelection: ContactSelectionControllerParams.MultipleSelectionMode
     private let requirePhoneNumbers: Bool
     private let allowChannelsInSearch: Bool
     
@@ -153,15 +153,17 @@ class ContactSelectionControllerImpl: ViewController, ContactSelectionController
             }
         })
         
-        if !params.multipleSelection {
+        if self.multipleSelection != .always {
             self.searchContentNode = NavigationBarSearchContentNode(theme: self.presentationData.theme, placeholder: self.presentationData.strings.Common_Search, activate: { [weak self] in
                 self?.activateSearch()
             })
             self.navigationBar?.setContentNode(self.searchContentNode, animated: false)
         }
         
-        if params.multipleSelection {
+        if self.multipleSelection == .always {
             self.navigationItem.rightBarButtonItem = UIBarButtonItem(image: PresentationResourcesRootController.navigationCompactSearchIcon(self.presentationData.theme), style: .plain, target: self, action: #selector(self.beginSearch))
+        } else if self.multipleSelection == .possible {
+            self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: self.presentationData.strings.Common_Select, style: .plain, target: self, action: #selector(self.beginSelection))
         }
         
         self.getCurrentSendMessageContextMediaPreview = { [weak self] in
@@ -220,7 +222,7 @@ class ContactSelectionControllerImpl: ViewController, ContactSelectionController
     }
     
     override func loadDisplayNode() {
-        self.displayNode = ContactSelectionControllerNode(context: self.context, mode: self.mode, presentationData: self.presentationData, options: self.options, displayDeviceContacts: self.displayDeviceContacts, displayCallIcons: self.displayCallIcons, multipleSelection: self.multipleSelection, requirePhoneNumbers: self.requirePhoneNumbers, allowChannelsInSearch: self.allowChannelsInSearch, isPeerEnabled: self.isPeerEnabled)
+        self.displayNode = ContactSelectionControllerNode(context: self.context, mode: self.mode, presentationData: self.presentationData, options: self.options, displayDeviceContacts: self.displayDeviceContacts, displayCallIcons: self.displayCallIcons, multipleSelection: self.multipleSelection == .always, requirePhoneNumbers: self.requirePhoneNumbers, allowChannelsInSearch: self.allowChannelsInSearch, isPeerEnabled: self.isPeerEnabled)
         self._ready.set(self.contactsNode.contactListNode.ready)
         
         self.contactsNode.navigationBar = self.navigationBar
@@ -229,8 +231,8 @@ class ContactSelectionControllerImpl: ViewController, ContactSelectionController
             self?.deactivateSearch()
         }
         
-        self.contactsNode.requestOpenPeerFromSearch = { [weak self] peer in
-            self?.openPeer(peer: peer, action: .generic, node: nil, gesture: nil)
+        self.contactsNode.requestOpenPeerFromSearch = { [weak self] peer, action in
+            self?.openPeer(peer: peer, action: action, node: nil, gesture: nil)
         }
         
         self.contactsNode.contactListNode.activateSearch = { [weak self] in
@@ -335,7 +337,7 @@ class ContactSelectionControllerImpl: ViewController, ContactSelectionController
             if let searchContentNode = self.searchContentNode as? NavigationBarSearchContentNode {
                 self.contactsNode.activateSearch(placeholderNode: searchContentNode.placeholderNode)
                 self.setDisplayNavigationBar(false, transition: .animated(duration: 0.5, curve: .spring))
-            } else if self.multipleSelection {
+            } else if self.multipleSelection == .always {
                 let contentNode = ContactsSearchNavigationContentNode(presentationData: self.presentationData, dismissSearch: { [weak self] in
                     if let strongSelf = self, let navigationBar = strongSelf.navigationBar, let searchContentNode = strongSelf.searchContentNode as? ContactsSearchNavigationContentNode {
                         searchContentNode.deactivate()
diff --git a/submodules/TelegramUI/Sources/ContactSelectionControllerNode.swift b/submodules/TelegramUI/Sources/ContactSelectionControllerNode.swift
index 58abf88ff3..78d954af74 100644
--- a/submodules/TelegramUI/Sources/ContactSelectionControllerNode.swift
+++ b/submodules/TelegramUI/Sources/ContactSelectionControllerNode.swift
@@ -37,7 +37,7 @@ final class ContactSelectionControllerNode: ASDisplayNode {
     var navigationBar: NavigationBar?
     
     var requestDeactivateSearch: (() -> Void)?
-    var requestOpenPeerFromSearch: ((ContactListPeer) -> Void)?
+    var requestOpenPeerFromSearch: ((ContactListPeer, ContactListAction) -> Void)?
     var requestOpenDisabledPeerFromSearch: ((EnginePeer, ChatListDisabledPeerReason) -> Void)?
     var requestMultipleAction: ((_ silent: Bool, _ scheduleTime: Int32?, _ parameters: ChatSendMessageActionSheetController.SendParameters?) -> Void)?
     var dismiss: (() -> Void)?
@@ -258,7 +258,7 @@ final class ContactSelectionControllerNode: ASDisplayNode {
             categories.insert(.channels)
         }
         
-        let searchContainerNode = ContactsSearchContainerNode(context: self.context, updatedPresentationData: (self.presentationData, self.presentationDataPromise.get()), onlyWriteable: false, categories: categories, filters: self.filters, addContact: nil, openPeer: { [weak self] peer in
+        let searchContainerNode = ContactsSearchContainerNode(context: self.context, updatedPresentationData: (self.presentationData, self.presentationDataPromise.get()), onlyWriteable: false, categories: categories, filters: self.filters, displayCallIcons: self.displayCallIcons, isPeerEnabled: self.isPeerEnabled, addContact: nil, openPeer: { [weak self] peer, action in
             if let strongSelf = self {
                 var updated = false
                 strongSelf.contactListNode.updateSelectionState { state -> ContactListNodeGroupSelectionState? in
@@ -285,7 +285,16 @@ final class ContactSelectionControllerNode: ASDisplayNode {
                 if updated {
                     strongSelf.requestDeactivateSearch?()
                 } else {
-                    strongSelf.requestOpenPeerFromSearch?(peer)
+                    let mappedAction: ContactListAction
+                    switch action {
+                    case .generic:
+                        mappedAction = .generic
+                    case .voiceCall:
+                        mappedAction = .voiceCall
+                    case .videoCall:
+                        mappedAction = .videoCall
+                    }
+                    strongSelf.requestOpenPeerFromSearch?(peer, mappedAction)
                 }
             }
         }, openDisabledPeer: { [weak self] peer, reason in
@@ -330,7 +339,7 @@ final class ContactSelectionControllerNode: ASDisplayNode {
             categories.insert(.channels)
         }
         
-        self.searchDisplayController = SearchDisplayController(presentationData: self.presentationData, contentNode: ContactsSearchContainerNode(context: self.context, updatedPresentationData: (self.presentationData, self.presentationDataPromise.get()), onlyWriteable: false, categories: categories, filters: self.filters, addContact: nil, openPeer: { [weak self] peer in
+        self.searchDisplayController = SearchDisplayController(presentationData: self.presentationData, contentNode: ContactsSearchContainerNode(context: self.context, updatedPresentationData: (self.presentationData, self.presentationDataPromise.get()), onlyWriteable: false, categories: categories, filters: self.filters, displayCallIcons: self.displayCallIcons, isPeerEnabled: self.isPeerEnabled, addContact: nil, openPeer: { [weak self] peer, action in
             if let strongSelf = self {
                 var updated = false
                 strongSelf.contactListNode.updateSelectionState { state -> ContactListNodeGroupSelectionState? in
@@ -357,7 +366,16 @@ final class ContactSelectionControllerNode: ASDisplayNode {
                 if updated {
                     strongSelf.requestDeactivateSearch?()
                 } else {
-                    strongSelf.requestOpenPeerFromSearch?(peer)
+                    let mappedAction: ContactListAction
+                    switch action {
+                    case .generic:
+                        mappedAction = .generic
+                    case .voiceCall:
+                        mappedAction = .voiceCall
+                    case .videoCall:
+                        mappedAction = .videoCall
+                    }
+                    strongSelf.requestOpenPeerFromSearch?(peer, mappedAction)
                 }
             }
         }, openDisabledPeer: { [weak self] peer, reason in
diff --git a/submodules/TelegramUI/Sources/OpenResolvedUrl.swift b/submodules/TelegramUI/Sources/OpenResolvedUrl.swift
index bcb6f012d2..10a241d5ee 100644
--- a/submodules/TelegramUI/Sources/OpenResolvedUrl.swift
+++ b/submodules/TelegramUI/Sources/OpenResolvedUrl.swift
@@ -394,6 +394,11 @@ func openResolvedUrlImpl(
         
             let _ = (signal
             |> deliverOnMainQueue).startStandalone(next: { [weak navigationController] resolvedCallLink in
+                if let currentGroupCallController = context.sharedContext.currentGroupCallController as? VoiceChatController, case let .group(groupCall) = currentGroupCallController.call, let currentCallId = groupCall.callId, currentCallId == resolvedCallLink.id {
+                    context.sharedContext.navigateToCurrentCall()
+                    return
+                }
+                
                 navigationController?.pushViewController(context.sharedContext.makeJoinSubjectScreen(context: context, mode: JoinSubjectScreenMode.groupCall(JoinSubjectScreenMode.GroupCall(
                     id: resolvedCallLink.id,
                     accessHash: resolvedCallLink.accessHash,
@@ -407,8 +412,7 @@ func openResolvedUrlImpl(
                 if case .chat = urlContext {
                     elevatedLayout = false
                 }
-                //TODO:localize
-                present(UndoOverlayController(presentationData: presentationData, content: .linkRevoked(text: "This link is no longer active"), elevatedLayout: elevatedLayout, animateInAsReplacement: false, action: { _ in
+                present(UndoOverlayController(presentationData: presentationData, content: .linkRevoked(text: presentationData.strings.Chat_ToastCallLinkExpired_Text), elevatedLayout: elevatedLayout, animateInAsReplacement: false, action: { _ in
                     return true
                 }), nil)
             })
diff --git a/submodules/TelegramUI/Sources/SharedAccountContext.swift b/submodules/TelegramUI/Sources/SharedAccountContext.swift
index 75717b4f5a..9da36e5bcc 100644
--- a/submodules/TelegramUI/Sources/SharedAccountContext.swift
+++ b/submodules/TelegramUI/Sources/SharedAccountContext.swift
@@ -1963,10 +1963,11 @@ public final class SharedAccountContextImpl: SharedAccountContext {
                     return
                 }
 
+                let isVideo = controller?.isCallVideoOptionSelected ?? false
+
                 if peerIds.count == 1 {
-                    //TODO:release isVideo
                     controller?.dismiss()
-                    self.performCall(context: context, parentController: parentController, peerId: peerIds[0], isVideo: false, began: {
+                    self.performCall(context: context, parentController: parentController, peerId: peerIds[0], isVideo: isVideo, began: {
                         let _ = (context.sharedContext.hasOngoingCall.get()
                         |> filter { $0 }
                         |> timeout(1.0, queue: Queue.mainQueue(), alternate: .single(true))
@@ -1981,7 +1982,7 @@ public final class SharedAccountContextImpl: SharedAccountContext {
                         })
                     })
                 } else {
-                    self.createGroupCall(context: context, parentController: parentController, peerIds: peerIds, completion: {
+                    self.createGroupCall(context: context, parentController: parentController, peerIds: peerIds, isVideo: isVideo, completion: {
                         controller?.dismiss()
                     })
                 }
@@ -2012,7 +2013,7 @@ public final class SharedAccountContextImpl: SharedAccountContext {
         })
     }
     
-    private func createGroupCall(context: AccountContext, parentController: ViewController, peerIds: [EnginePeer.Id], completion: (() -> Void)? = nil) {
+    private func createGroupCall(context: AccountContext, parentController: ViewController, peerIds: [EnginePeer.Id], isVideo: Bool, completion: (() -> Void)? = nil) {
         parentController.view.endEditing(true)
         
         var cancelImpl: (() -> Void)?
@@ -2058,7 +2059,7 @@ public final class SharedAccountContextImpl: SharedAccountContext {
                         isStream: false
                     ),
                     reference: .id(id: call.callInfo.id, accessHash: call.callInfo.accessHash),
-                    beginWithVideo: false,
+                    beginWithVideo: isVideo,
                     invitePeerIds: peerIds
                 )
                 completion?()
@@ -2080,9 +2081,8 @@ public final class SharedAccountContextImpl: SharedAccountContext {
                         if let result {
                             switch result {
                             case .linkCopied:
-                                //TODO:localize
                                 let presentationData = context.sharedContext.currentPresentationData.with { $0 }
-                                parentController.present(UndoOverlayController(presentationData: presentationData, content: .universal(animation: "anim_linkcopied", scale: 0.08, colors: ["info1.info1.stroke": UIColor.clear, "info2.info2.Fill": UIColor.clear], title: nil, text: "Call link copied.", customUndoText: "View Call", timeout: nil), elevatedLayout: false, animateInAsReplacement: false, action: { action in
+                                parentController.present(UndoOverlayController(presentationData: presentationData, content: .universal(animation: "anim_linkcopied", scale: 0.08, colors: ["info1.info1.stroke": UIColor.clear, "info2.info2.Fill": UIColor.clear], title: nil, text: presentationData.strings.CallList_ToastCallLinkCopied_Text, customUndoText: presentationData.strings.CallList_ToastCallLinkCopied_Action, timeout: nil), elevatedLayout: false, animateInAsReplacement: false, action: { action in
                                     if case .undo = action {
                                         openCall()
                                     }
diff --git a/submodules/TelegramVoip/Sources/GroupCallContext.swift b/submodules/TelegramVoip/Sources/GroupCallContext.swift
index dc3bc51f68..e631caf116 100644
--- a/submodules/TelegramVoip/Sources/GroupCallContext.swift
+++ b/submodules/TelegramVoip/Sources/GroupCallContext.swift
@@ -899,6 +899,7 @@ public final class OngoingGroupCallContext {
                     }
                     return OngoingGroupCallRequestedVideoChannel(
                         audioSsrc: channel.audioSsrc,
+                        userId: channel.peerId,
                         endpointId: channel.endpointId,
                         ssrcGroups: channel.ssrcGroups.map { group in
                             return OngoingGroupCallSsrcGroup(
diff --git a/third-party/td/td b/third-party/td/td
new file mode 160000
index 0000000000..a03a90470d
--- /dev/null
+++ b/third-party/td/td
@@ -0,0 +1 @@
+Subproject commit a03a90470d6fca9a5a3db747ba3f3e4a465b5fe7
diff --git a/third-party/td/td/.clang-format b/third-party/td/td/.clang-format
deleted file mode 100644
index 8f0a588366..0000000000
--- a/third-party/td/td/.clang-format
+++ /dev/null
@@ -1,194 +0,0 @@
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diff --git a/third-party/td/td/.gitattributes b/third-party/td/td/.gitattributes
deleted file mode 100644
index 8a58f71824..0000000000
--- a/third-party/td/td/.gitattributes
+++ /dev/null
@@ -1,39 +0,0 @@
-* text=auto
-
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diff --git a/third-party/td/td/.gitignore b/third-party/td/td/.gitignore
deleted file mode 100644
index 9ce887b5f1..0000000000
--- a/third-party/td/td/.gitignore
+++ /dev/null
@@ -1,8 +0,0 @@
-**/*build*/
-**/.*.swp
-**/.DS_Store
-**/auto/
-docs/
-/tdlib/
-vcpkg/
-.clang-tidy
diff --git a/third-party/td/td/CHANGELOG.md b/third-party/td/td/CHANGELOG.md
deleted file mode 100644
index f590b3ef62..0000000000
--- a/third-party/td/td/CHANGELOG.md
+++ /dev/null
@@ -1,1520 +0,0 @@
-Changes in 1.8.0 (29 Dec 2021):
-
-* Changed the type of user, basic group and supergroup identifiers from `int32` to `int53`.
-* Simplified chat list loading and removed the ability to misuse the method `getChats`:
-  - Renamed the method `getChats` to `loadChats`.
-  - Removed the parameters `offset_order` and `offset_chat_id` from the method `loadChats`. Chats are now always loaded
-    from the last known chat in the list.
-  - Changed the type of the result in the method `loadChats` to `ok`. If no chats were loaded, a 404 error is returned.
-    The order of chats in the list must be maintained using the updates `updateChatPosition`, `updateChatLastMessage`,
-    and `updateChatDraftMessage`.
-  - Added the convenience method `getChats`, which returns the requested number of chats from the beginning of a chat
-    list and can be used if the list of chats doesn't need to be maintained in a consistent state.
-* Added the ability to hook TDLib log messages:
-  - Added the function `td_set_log_message_callback` to JSON interface.
-  - Added the function `set_log_message_callback` to the class `ClientManager`.
-  - Added the function `SetLogMessageCallback` to the UWP native wrapper through C++/CX.
-  - Deprecated the function `td_set_log_fatal_error_callback` in JSON interface in favor of
-    the function `td_set_log_message_callback`.
-  - Deprecated the function `Log::set_fatal_error_callback` in favor of
-    the function `ClientManager::set_log_message_callback`.
-* Added support for sending messages on behalf of public channels owned by the user:
-  - Added the field `message_sender_id` to the class `chat`, containing the identifier of the currently selected
-    message sender.
-  - Added the update `updateChatMessageSender`.
-  - Added the method `getChatAvailableMessageSenders`, returning the list of available message senders for the chat.
-  - Added the method `setChatMessageSender`, changing the currently selected message sender.
-  - Added the field `need_another_sender` to the class `messageSendingStateFailed`. If it is true, an alert needs
-    to be shown to the user that the message will be re-sent on behalf of another sender.
-  - Replaced the method `deleteChatMessagesFromUser` with the method `deleteChatMessagesBySender`, expecting
-    a `MessageSender` instead of a user identifier.
-  - Replaced the update `updateUserChatAction` with the update `updateChatAction`, containing a `MessageSender`
-    instead of a user identifier as a source of the chat action.
-* Added the ability to ban supergroups and channels in other supergroups and channels:
-  - Replaced the fields `user_id` with the fields `member_id` in the classes `chatMember` and
-    `chatEventMemberRestricted`.
-  - Replaced the parameters `user_id` with the parameters `member_id` in the methods `setChatMemberStatus` and
-    `getChatMember`.
-* Improved support for animated emoji:
-  - Added the class `animatedEmoji`, containing information about an animated emoji.
-  - Added the class `messageAnimatedEmoji` to the types of message content.
-  - Added the method `clickAnimatedEmojiMessage` to be called when an animated emoji is clicked.
-  - Added the update `updateAnimatedEmojiMessageClicked`, received when a big animated sticker must be played.
-  - Added the class `chatActionWatchingAnimations` to the types of chat action.
-  - Added the method `getAnimatedEmoji`, returning an animated emoji corresponding to a given emoji.
-  - Added the writable option "disable_animated_emoji".
-  - Removed the option "animated_emoji_sticker_set_name".
-* Added support for automatic message deletion in all chat types:
-  - Added the field `message_ttl` to the class `chat`.
-  - Added the update `updateChatMessageTtl`.
-  - Added the method `setChatMessageTtl`.
-  - Added the class `chatEventMessageTtlChanged`, representing change of the field `message_ttl` in the chat event log.
-  - Removed the field `ttl` from the class `secretChat` in favor of the field `message_ttl` in the class `chat`.
-  - Removed the method `sendChatSetTtlMessage` in favor of the method `setChatMessageTtl`.
-* Improved names of the fields of the type `MessageSender`:
-  - Renamed the fields `sender` to `sender_id` in the classes `message` and `notificationTypeNewPushMessage`.
-  - Renamed the parameter `sender` to `sender_id` in the methods `searchChatMessages`, `addLocalMessage`, and
-    `toggleMessageSenderIsBlocked`.
-  - Renamed the field `recent_repliers` to `recent_replier_ids` in the class `messageReplyInfo`.
-  - Renamed the field `traveler` to `traveler_id` in the class `messageProximityAlertTriggered`.
-  - Renamed the field `watcher` to `watcher_id` in the class `messageProximityAlertTriggered`.
-* The field `formatted_phone_number` in the class `phoneNumberInfo` now contains the character '-' at the places of
-  expected digits.
-* Added the synchronous method `getPhoneNumberInfoSync` that can be used instead of the method `getPhoneNumberInfo`
-  to synchronously receive information about a phone number by its prefix.
-* Replaced the field `user_id` in the class `chatEvent` with the field `member_id` of the type `MessageSender`.
-* Improved support for bot payments:
-  - Allowed sending invoices as results of inline queries by allowing bots to use the class `inputMessageInvoice` as
-    the value of the field `input_message_content` in the classes `inputInlineQueryResultAnimation`,
-    `inputInlineQueryResultArticle`, `inputInlineQueryResultAudio`, `inputInlineQueryResultContact`,
-    `inputInlineQueryResultDocument`, `inputInlineQueryResultLocation`, `inputInlineQueryResultPhoto`,
-    `inputInlineQueryResultSticker`, `inputInlineQueryResultVenue`, `inputInlineQueryResultVideo`, and
-    `inputInlineQueryResultVoiceNote`.
-  - Allowed sending invoice messages to basic group, supergroup and channel chats.
-  - Allowed bots to send forwardable invoices by specifying an empty field `start_parameter` in
-    the class `inputMessageInvoice`.
-  - Added the field `invoice_chat_id` to the class `messagePaymentSuccessful`.
-  - Added the field `id` to the class `paymentForm`, containing a unique payment form identifier.
-  - Added the parameter `payment_form_id` to the method `sendPaymentForm`.
-  - Added the field `seller_bot_user_id` to the class `paymentForm`, containing the user identifier of the seller bot.
-  - Added the field `payments_provider_user_id` to the class `paymentForm`, containing the user identifier of
-    the payment provider bot.
-  - Added the fields `title`, `description`, `photo`, and `seller_bot_user_id` to the class `paymentReceipt`.
-  - Added the fields `max_tip_amount` and `suggested_tip_amounts` to the class `invoice`.
-  - Added the parameter `tip_amount` to the method `sendPaymentForm`.
-  - Added the field `tip_amount` to the class `paymentReceipt`.
-  - Renamed the class `inputCredentialsAndroidPay` to `inputCredentialsGooglePay`.
-  - Added the class `paymentFormTheme`, containing the desired colors for a payment form.
-  - Added the parameter `theme` to the method `getPaymentForm`.
-  - Removed the field `invoice_message_id` from the class `messagePaymentSuccessfulBot`.
-* Added the method `deleteChat`, which can be used to completely delete a chat along with all messages.
-* Removed the method `deleteSupergroup` in favor of the method `deleteChat`.
-* Changed the type of the result in the method `getProxyLink` to the class `httpUrl` instead of the class `text`.
-* Removed support for secret chat layers before 73.
-* Added support for sponsored messages:
-  - Added the class `sponsoredMessage`.
-  - Added the method `getChatSponsoredMessage`.
-  - Added the ability to pass identifiers of sponsored messages to `viewMessages`. The method must be called when
-    the entire text of the sponsored message is shown on the screen (excluding the button).
-* Added support for video chats:
-  - Added the class `groupCall`, representing a group call.
-  - Added the method `getGroupCall` for fetching information about a group call.
-  - Added the update `updateGroupCall`.
-  - Added the class `videoChat`, representing a video chat, i.e. group call bound to a chat.
-  - Added the field `video_chat` to the class `chat`.
-  - Added the update `updateChatVideoChat`.
-  - Added the classes `messageVideoChatScheduled`, `messageVideoChatStarted`, and `messageVideoChatEnded` to
-    the types of message content.
-  - Added the class `messageInviteVideoChatParticipants` to the types of message content.
-  - Added the field `can_manage_video_chats` to the class `chatMemberStatusAdministrator`.
-  - Added the class `groupCallId`.
-  - Added the method `createVideoChat` for video chat creation.
-  - Added the method `startScheduledGroupCall`.
-  - Added the method `toggleGroupCallEnabledStartNotification`.
-  - Added the method `joinGroupCall`.
-  - Added the method `leaveGroupCall`.
-  - Added the method `endGroupCall`.
-  - Added the method `toggleGroupCallIsMyVideoEnabled`.
-  - Added the method `toggleGroupCallIsMyVideoPaused`.
-  - Added the methods `startGroupCallScreenSharing`, `toggleGroupCallScreenSharingIsPaused`,
-    `endGroupCallScreenSharing` for managing screen sharing during group calls.
-  - Added the method `setGroupCallTitle`.
-  - Added the method `toggleGroupCallMuteNewParticipants`.
-  - Added the classes `groupCallVideoSourceGroup` and `groupCallParticipantVideoInfo`, describing available
-    video streams.
-  - Added the class `groupCallParticipant`.
-  - Added the update `updateGroupCallParticipant`.
-  - Added the method `loadGroupCallParticipants`.
-  - Added the method `toggleGroupCallParticipantIsHandRaised`.
-  - Added the method `setGroupCallParticipantIsSpeaking`.
-  - Added the methods `toggleGroupCallParticipantIsMuted` and `setGroupCallParticipantVolumeLevel` for managing
-    the volume level of group call participants.
-  - Added the method `inviteGroupCallParticipants`.
-  - Added the method `getGroupCallInviteLink` and `revokeGroupCallInviteLink` for managing group call invite links.
-  - Added the methods `startGroupCallRecording` and `endGroupCallRecording` for managing group call recordings.
-  - Added the method `getVideoChatAvailableParticipants`, returning the list of participants, on whose behalf
-    a video chat in the chat can be joined.
-  - Added the method `setVideoChatDefaultParticipant` for changing the default participant on whose behalf a video chat
-    will be joined.
-  - Added the class `GroupCallVideoQuality` and the method `getGroupCallStreamSegment` for downloading segments of
-    live streams.
-  - Added the class `groupCallRecentSpeaker`, representing a group call participant that was recently speaking.
-  - Added the field `video_chat_changes` to the class `chatEventLogFilters`.
-  - Added the class `chatEventVideoChatCreated`, representing a video chat being created in the chat event log.
-  - Added the class `chatEventVideoChatEnded`, representing a video chat being ended in the chat event log.
-  - Added the class `chatEventVideoChatMuteNewParticipantsToggled`, representing changes of
-    the setting `mute_new_participants` of a video chat in the chat event log.
-  - Added the class `chatEventVideoChatParticipantIsMutedToggled`, representing a video chat participant being muted or
-    unmuted in the chat event log.
-  - Added the class `chatEventVideoChatParticipantVolumeLevelChanged`, representing a video chat participant's
-    volume level being changed in the chat event log.
-* Added "; pass null" documentation for all TDLib method parameters, for which null is an expected value.
-* Added support for link processing:
-  - Added the method `getInternalLinkType`, which can parse internal links and return the exact link type and actions
-    to be done when the link is clicked.
-  - Added the classes `internalLinkTypeActiveSessions`, `internalLinkTypeAuthenticationCode`,
-    `internalLinkTypeBackground`, `internalLinkTypeBotStart`, `internalLinkTypeBotStartInGroup`,
-    `internalLinkTypeChangePhoneNumber`, `internalLinkTypeChatInvite`, `internalLinkTypeFilterSettings`,
-    `internalLinkTypeGame`, `internalLinkTypeLanguagePack`, `internalLinkTypeMessage`, `internalLinkTypeMessageDraft`,
-    `internalLinkTypePassportDataRequest`, `internalLinkTypePhoneNumberConfirmation`, `internalLinkTypeProxy`,
-    `internalLinkTypePublicChat`, `internalLinkTypeQrCodeAuthentication`, `internalLinkTypeSettings`,
-    `internalLinkTypeStickerSet`, `internalLinkTypeTheme`, `internalLinkTypeThemeSettings`,
-    `internalLinkTypeUnknownDeepLink`, `internalLinkTypeUnsupportedProxy`, and `internalLinkTypeVideoChat` to represent
-    different types of internal links.
-  - Added the method `getExternalLinkInfo`, which needs to be called if the clicked link wasn't recognized as
-    an internal link.
-  - Added the method `getExternalLink`, which needs to be called after the method `getExternalLinkInfo` if the user
-    confirms automatic authorization on the website.
-* Added support for expiring chat invite links:
-  - Added the field `is_primary` to the class `chatInviteLink`. The primary invite link can't have a name,
-    expiration date, or usage limit. There is exactly one primary invite link for each administrator with
-    the can_invite_users right at any given time.
-  - Added the field `name` to the class `chatInviteLink`.
-  - Added the field `creator_user_id` to the class `chatInviteLink`.
-  - Added the field `date` to the class `chatInviteLink`, containing the link creation date.
-  - Added the field `edit_date` to the class `chatInviteLink`, containing the date the link was last edited.
-  - Added the fields `expiration_date` and `member_limit` to the class `chatInviteLink`, limiting link usage.
-  - Added the field `member_count` to the class `chatInviteLink`.
-  - Added the field `is_revoked` to the class `chatInviteLink`.
-  - Changed the type of the fields `invite_link` in the classes `basicGroupFullInfo` and `supergroupFullInfo` to
-    `chatInviteLink`.
-  - Added the field `description` to the class `chatInviteLinkInfo`, containing the description of the chat.
-  - Replaced the method `generateChatInviteLink` with the method `replacePrimaryChatInviteLink`.
-  - Added the method `createChatInviteLink` for creating new invite links.
-  - Added the method `editChatInviteLink` for editing non-primary invite links.
-  - Added the method `revokeChatInviteLink`.
-  - Added the method `deleteRevokedChatInviteLink`.
-  - Added the method `deleteAllRevokedChatInviteLink`.
-  - Added the method `getChatInviteLink`.
-  - Added the class `chatInviteLinks`, containing a list of chat invite links.
-  - Added the method `getChatInviteLinks`.
-  - Added the classes `chatInviteLinkCount` and `chatInviteLinkCounts`.
-  - Added the method `getChatInviteLinkCounts`, returning the number of invite links created by chat administrators.
-  - Added the classes `chatInviteLinkMember` and `chatInviteLinkMembers`.
-  - Added the method `getChatInviteLinkMembers`.
-  - Added the field `invite_link_changes` to the class `chatEventLogFilters`.
-  - Added the class `chatEventMemberJoinedByInviteLink`, representing a user joining the chat via invite link in
-    the chat event log.
-  - Added the class `chatEventInviteLinkEdited` to the types of chat event.
-  - Added the class `chatEventInviteLinkRevoked` to the types of chat event.
-  - Added the class `chatEventInviteLinkDeleted` to the types of chat event.
-  - Added the class `chatActionBarInviteMembers` to the types of chat action bar.
-* Added support for chat invite links that create join requests:
-  - Added the class `messageChatJoinByRequest` to the types of message content.
-  - Added the class `pushMessageContentChatJoinByRequest` to the types of push message content.
-  - Added the field `pending_join_requests` to the class `chat`.
-  - Added the class `chatJoinRequestsInfo`, containing basic information about pending join requests for the chat.
-  - Added the update `updateChatPendingJoinRequests`.
-  - Added the fields `creates_join_request` to the classes `chatInviteLink` and `chatInviteLinkInfo`.
-  - Added the field `pending_join_request_count` to the class `chatInviteLink`.
-  - Added the class `chatJoinRequest`, describing a user that sent a join request.
-  - Added the class `chatJoinRequests`, containing a list of requests to join the chat.
-  - Added the method `getChatJoinRequests`.
-  - Added the method `processChatJoinRequest` for processing a request to join the chat.
-  - Added the method `processChatJoinRequests` for processing all requests to join the chat.
-  - Added the class `chatActionBarJoinRequest` to the types of chat action bar.
-  - Added the class `chatEventMemberJoinedByRequest`, representing a user approved to join the chat after
-    a join request in the chat event log.
-  - Added the update `updateNewChatJoinRequest` for bots.
-* Added the ability to see viewers of outgoing messages in small group chats:
-  - Added the method `getMessageViewers`.
-  - Added the field `can_get_viewers` to the class `message`.
-* Added the parameter `only_preview` to the method `forwardMessages`, which can be used to receive a preview of
-  forwarded messages.
-* Added the method `getRecentlyOpenedChats`, returning the list of recently opened chats.
-* Increased number of recently found chats that are stored to 50.
-* Added the ability to get information about chat messages, which are split by days:
-  - Added the class `messageCalendarDay`, representing found messages, sent on a specific day.
-  - Added the class `messageCalendar`, representing found messages, split by days.
-  - Added the writable option "utc_time_offset", which contains a UTC time offset used for splitting messages by days.
-    The option is reset automatically on each TDLib instance launch, so it needs to be set manually only if
-    the time offset is changed during execution.
-  - Added the method `getChatMessageCalendar`, returning information about chat messages, which are split by days.
-* Added the ability to get messages of the specified type in sparse positions for hyper-speed scrolling implementation:
-  - Added the class `messagePosition`, containing an identifier and send date of a message in
-    a specific chat history position.
-  - Added the class `messagePositions`, containing a list of message positions.
-  - Added the method `getChatSparseMessagePositions`.
-* Added the field `can_manage_chat` to the class `chatMemberStatusAdministrator` to allow promoting chat administrators
-  without additional rights.
-* Improved support for bot commands:
-  - Bot command entities in chats without bots are now automatically hidden.
-  - Added the class `botCommands`, representing a list of bot commands.
-  - Added the field `commands` to the class `userFullInfo`, containing the list of commands to be used in
-    the private chat with the bot.
-  - Added the fields `bot_commands` to the classes `basicGroupFullInfo` and `supergroupFullInfo`.
-  - Removed the class `botInfo`.
-  - Removed the fields `bot_info` from the classes `userFullInfo` and `chatMember`.
-  - Added the class `BotCommandScope`.
-  - Added the methods `setCommands`, `deleteCommands`, `getCommands` for bots.
-* Added the read-only options "suggested_video_note_length", "suggested_video_note_video_bitrate", and
-  "suggested_video_note_audio_bitrate", containing suggested video note encoding parameters.
-* Added the read-only option "channel_bot_user_id", containing the identifier of the bot which is shown in
-  outdated clients as the sender of messages sent on behalf of channels.
-* Added the ability to fetch the actual value of the option "is_location_visible" using the method `getOption` in case
-  the value of the option was changed from another device.
-* Added the field `minithumbnail` to the class `profilePhoto`, representing a profile photo minithumbnail.
-* Added the field `minithumbnail` to the class `chatPhotoInfo`, representing a chat photo minithumbnail.
-* Added support for sticker outlines:
-  - Added the field `outline` to the class `sticker`.
-  - Added the fields `thumbnail_outline` to the classes `stickerSet` and `stickerSetInfo`.
-  - Added the class `closedVectorPath`, representing a closed vector path.
-  - Added the class `VectorPathCommand`, representing one edge of a closed vector path.
-  - Added the class `point`, representing a point on a Cartesian plane.
-* Added support for chats and messages with protected content:
-  - Added the field `has_protected_content` to the class `chat`.
-  - Added the update `updateChatHasProtectedContent`.
-  - Added the method `toggleChatHasProtectedContent`.
-  - Added the class `chatEventHasProtectedContentToggled`, representing a change of the setting `has_protected_content`
-    in the chat event log.
-  - Added the field `can_be_saved` to the class `message`.
-* Added support for broadcast groups, i.e. supergroups without a limit on the number of members in which
-  only administrators can send messages:
-  - Added the field `is_broadcast_group` to the class `supergroup`.
-  - Added the method `toggleSupergroupIsBroadcastGroup`. Conversion of a supergroup to a broadcast group
-    can't be undone.
-  - Added the class `suggestedActionConvertToBroadcastGroup`, representing a suggestion to convert a supergroup to
-    a broadcast group.
-* Improved chat reports:
-  - Added the parameter `text` to the method `reportChat`, allowing to add additional details to all
-    chat reporting reasons.
-  - Removed the field `text` from the class `chatReportReasonCustom`.
-  - Added the method `reportChatPhoto` for reporting chat photos.
-* Added support for users and chats reported as fake:
-  - Added the field `is_fake` to the class `user`.
-  - Added the field `is_fake` to the class `supergroup`.
-  - Added the class `chatReportReasonFake` to the types of chat reporting reasons.
-* Added the class `inlineKeyboardButtonTypeUser` to the types of inline keyboard buttons.
-* Added the field `input_field_placeholder` to the classes `replyMarkupForceReply` and `replyMarkupShowKeyboard`.
-* Added support for media timestamp entities in messages:
-  - Added the class `textEntityTypeMediaTimestamp` to the types of text entities.
-  - Added the field `has_timestamped_media` to the class `message`, describing whether media timestamp entities refer
-    to the message itself or to the replied message.
-  - Added the parameter `media_timestamp` to the method `getMessageLink` to support creating message links with
-    a given media timestamp.
-  - Added the field `can_get_media_timestamp_links` to the class `message`.
-  - Added the field `media_timestamp` to the class `messageLinkInfo` for handling of message links with
-    a specified media timestamp.
-* Added the ability to change properties of active sessions:
-  - Added the field `can_accept_secret_chats` to the class `session`.
-  - Added the method `toggleSessionCanAcceptSecretChats`.
-  - Added the field `can_accept_calls` to the class `session`.
-  - Added the method `toggleSessionCanAcceptCalls`.
-  - Added the field `inactive_session_ttl_days` to the class `sessions`.
-  - Added the method `setInactiveSessionTtl`.
-* Added new ways for phone number verification:
-  - Added the class `authenticationCodeTypeMissedCall`, describing an authentication code delivered by
-    a canceled phone call to the given number. The last digits of the phone number that calls are the code that
-    must be entered manually by the user.
-  - Added the field `allow_missed_call` to the class `phoneNumberAuthenticationSettings`.
-  - Added the read-only option "authentication_token", which can be received when logging out and contains
-    an authentication token to be used on subsequent authorizations.
-  - Added the field `authentication_tokens` to the class `phoneNumberAuthenticationSettings`.
-* Added support for resetting the password from an active session:
-  - Added the class `ResetPasswordResult` and the method `resetPassword`.
-  - Added the method `cancelPasswordReset`, which can be used to cancel a pending password reset.
-  - Added the field `pending_reset_date` to the class `passwordState`.
-* Added the ability to set a new 2-step verification password after recovering a lost password using
-  a recovery email address:
-  - Added the parameters `new_password` and `new_hint` to the methods `recoverAuthenticationPassword` and
-    `recoverPassword`.
-  - Added the method `checkAuthenticationPasswordRecoveryCode`.
-  - Added the method `checkPasswordRecoveryCode`.
-* Added the class `chatActionChoosingSticker` to the types of chat action.
-* Added the class `backgroundFillFreeformGradient` to the types of background fill.
-* Added the field `is_inverted` to the class `backgroundTypePattern` for inverted patterns for dark themes.
-* Added support for chat themes:
-  - Added the field `theme_name` to the class `chat`.
-  - Added the method `setChatTheme`.
-  - Added the update `updateChatTheme`, received when a theme was changed in a chat.
-  - Added the class `messageChatSetTheme` to the types of message content.
-  - Added the class `pushMessageContentChatSetTheme` to the types of push message content.
-  - Added the class `themeSettings`, representing basic theme settings.
-  - Added the class `chatTheme`, representing a chat theme.
-  - Added the update `updateChatThemes`, received when the list of available chat themes changes.
-* Added the ability for regular users to create sticker sets:
-  - Allowed to use the methods `uploadStickerFile` and `createNewStickerSet` as regular users.
-  - Replaced the parameter `png_sticker` in the method `uploadStickerFile` with the parameter `sticker` of
-    the type `InputSticker`.
-  - Added the parameter `source` to the method `createNewStickerSet`.
-  - Added the method `getSuggestedStickerSetName`.
-  - Added the class `CheckStickerSetNameResult` and the method `checkStickerSetName` for checking a sticker set name
-    before creating a sticker set.
-* Added support for importing chat history from an external source:
-  - Added the method `importMessages`.
-  - Added the method `getMessageImportConfirmationText`.
-  - Added the class `MessageFileType` and the method `getMessageFileType`, which can be used to check whether
-    the format of a file with exported message history is supported.
-  - Added the class `messageForwardOriginMessageImport` to the types of forwarded message origins for
-    imported messages.
-  - Added the parameter `for_import` to the method `createNewSupergroupChat`, which needs to be set to true whenever
-    the chat is created for a subsequent message history import.
-* Added new types of suggested actions:
-  - Added the class `suggestedActionSetPassword`, suggesting the user to set a 2-step verification password to be able
-    to log in again before the specified number of days pass.
-  - Added the class `suggestedActionCheckPassword`, suggesting the user to check whether they still remember
-    their 2-step verification password.
-  - Added the class `suggestedActionViewChecksHint`, suggesting the user to see a hint about the meaning of
-    one and two check marks on sent messages.
-* Added the method `getSuggestedFileName`, which returns a suggested name for saving a file in a given directory.
-* Added the method `deleteAllCallMessages`.
-* Added the method `deleteChatMessagesByDate`, which can be used to delete all messages between the specified dates in
-  a chat.
-* Added the field `unread_message_count` to the class `messageThreadInfo`.
-* Added the field `has_private_forwards` to the class `userFullInfo`.
-* Added the field `description` to the class `userFullInfo`, containing description of the bot.
-* Added the field `emoji` to the class `inputMessageSticker`, allowing to specify the emoji that was used to choose
-  the sent sticker.
-* Added the method `banChatMember` that can be used to ban chat members instead of the method `setChatMemberStatus` and
-  allows to revoke messages from the banned user in basic groups.
-* Allowed to use the method `setChatMemberStatus` for adding chat members.
-* Removed the parameter `user_id` from the method `reportSupergroupSpam`. Messages from different senders can now
-  be reported simultaneously.
-* Added the field `feedback_link` to the class `webPageInstantView`.
-* Added the method `getApplicationDownloadLink`, returning the link for downloading official Telegram applications.
-* Removed unusable search message filters `searchMessagesFilterCall` and `searchMessagesFilterMissedCall`.
-* Removed the method `getChatStatisticsUrl`.
-* Removed the method `getInviteText` in favor of the method `getApplicationDownloadLink`.
-* Added the field `chat_type` to the update `updateNewInlineQuery` for bots.
-* Added the update `updateChatMember` for bots.
-* Improved the appearance of the [TDLib build instructions generator](https://tdlib.github.io/td/build.html).
-* Added support for the illumos operating system.
-* Added support for network access on real watchOS devices.
-* Added support for OpenSSL 3.0.
-* Improved the iOS/watchOS/tvOS build example to generate a universal XCFramework.
-* Added support for ARM64 simulators in the iOS/watchOS/tvOS build example.
-* Added the option `-release_only` to the build script for Universal Windows Platform, allowing to build
-  TDLib SDK for Universal Windows Platform in release-only mode.
-* Rewritten the native .NET binding using the new `ClientManager` interface:
-  - Replaced the method `Client.send` with a static method that must be called exactly once in a dedicated thread.
-    The callbacks `ClientResultHandler` will be called in this thread for all clients.
-  - Removed the function `Client.Dispose()` from the C++/CLI native binding. The objects of the type `Client`
-    don't need to be explicitly disposed anymore.
-* Rewritten the C binding using the new `ClientManager` interface:
-  - Renamed the fields `id` in the structs `TdRequest` and `TdResponse` to `request_id`.
-  - Added the field `client_id` to the struct `TdResponse`.
-  - Replaced the method `TdCClientCreate` with the method `TdCClientCreateId`.
-  - Replaced the parameter `instance` with the parameter `client_id` in the function `TdCClientSend`.
-  - Added the methods `TdCClientReceive` and `TdCClientExecute`.
-  - Removed the methods `TdCClientSendCommandSync`, `TdCClientDestroy`, and `TdCClientSetVerbosity`.
-
------------------------------------------------------------------------------------------------------------------------
-
-Changes in 1.7.0 (28 Nov 2020):
-
-* Added a new simplified JSON interface in which updates and responses to requests from all TDLib instances
-  are received in the same thread:
-  - The TDLib instance is identified by the unique `client_id` identifier, which is returned by the method
-    `td_create_client_id`.
-  - Use the method `td_send` to send a request to a specified client. The TDLib instance is created on the first
-    request sent to it.
-  - Use the method `td_receive` to receive updates and request responses from TDLib. The response will contain
-    the identifier of the client from which the event was received in the field "@client_id".
-  - Use the method `td_execute` to synchronously execute suitable TDLib methods.
-* Added support for adding chats to more than one chat list:
-  - Added the class `chatPosition`, describing the position of the chat within a chat list.
-  - Replaced the fields `chat_list`, `order`, `is_sponsored` and `is_pinned` in the class `chat` with
-    the field `positions`, containing a list of the chat positions in various chat list.
-  - Replaced the field `order` with the field `positions` in the updates `updateChatLastMessage` and
-    `updateChatDraftMessage`.
-  - Added the update `updateChatPosition`.
-  - Removed the superfluous updates `updateChatChatList`, `updateChatIsSponsored`, `updateChatOrder` and
-    `updateChatIsPinned`.
-  - Added the parameter `chat_list` to the method `toggleChatIsPinned`.
-  - Added the class `chatLists`, containing a list of chat lists.
-  - Added the method `getChatListsToAddChat`, returning all chat lists to which a chat can be added.
-  - Added the method `addChatToList`, which can be used to add a chat to a chat list.
-  - Remove the method `setChatChatList`.
-* Added support for chat filters:
-  - Added the new chat list type `chatListFilter`.
-  - Added the classes `chatFilterInfo` and `chatFilter`, describing a filter of user chats.
-  - Added the update `updateChatFilters`, which is sent when the list of chat filters is changed.
-  - Added the methods `createChatFilter`, `editChatFilter` and `deleteChatFilter` for managing chat filters.
-  - Added the method `reorderChatFilters` for changing the order of chat filters.
-  - Added the method `getChatFilter`, returning full information about a chat filter.
-  - Added the synchronous method `getChatFilterDefaultIconName`.
-  - Added the classes `recommendedChatFilter` and `recommendedChatFilters`.
-  - Added the method `getRecommendedChatFilters`, returning a list of recommended chat filters.
-* Added support for messages sent on behalf of chats instead of users:
-  - Added the class `MessageSender`, representing a user or a chat which sent a message.
-  - Added the class `MessageSenders`, representing a list of message senders.
-  - Replaced the field `sender_user_id` with the field `sender` of the type `MessageSender` in the classes `message`
-    and `notificationTypeNewPushMessage`.
-  - Added the class `messageForwardOriginChat`, which describe a chat as the original sender of a message.
-  - Added the ability to search messages sent by a chat by replacing the parameter `sender_user_id` with
-    the parameter `sender` of the type `MessageSender` in the method `searchChatMessages`.
-  - Added the ability to specify a chat as a local message sender by replacing the parameter `sender_user_id` with
-    the parameter `sender` of the type `MessageSender` in the method `addLocalMessage`.
-* Added support for video calls:
-  - Added the class `callServer`, describing a server for relaying call data.
-  - Added the classes `callServerTypeTelegramReflector` and `callServerTypeWebrtc`, representing different types of
-    supported call servers.
-  - Replaced the field `connections` with the field `servers` in the class `callStateReady`.
-  - Removed the class `callConnection`.
-  - Added the update `updateNewCallSignalingData`.
-  - Added the method `sendCallSignalingData`.
-  - Added the field `supports_video_calls` to the class `userFullInfo`.
-  - Added the field `is_video` to the class `messageCall`.
-  - Added the field `is_video` to the class `call`.
-  - Added the parameter `is_video` to the method `createCall`.
-  - Added the parameter `is_video` to the method `discardCall`.
-  - Added two new types of call problems `callProblemDistortedVideo` and `callProblemPixelatedVideo`.
-  - Added the field `library_versions` to the class `callProtocol`, which must be used to specify all supported
-    call library versions.
-* Added support for multiple pinned messages and the ability to pin messages in private chats:
-  - Added the ability to pin messages in all private chats.
-  - Added the ability to pin mutiple messages in all chats.
-  - Added the field `is_pinned` to the class `message`.
-  - Added the update `updateMessageIsPinned`.
-  - Added the parameter `only_for_self` to the method `pinChatMessage`, allowing to pin messages in private chats for
-    one side only.
-  - Added the ability to find pinned messages in a chat using the filter `searchMessagesFilterPinned`.
-  - Added the parameter `message_id` to the method `unpinChatMessage`.
-  - Added the field `message` to the class `chatEventMessageUnpinned`.
-  - Added the method `unpinAllChatMessages`, which can be used to simultaneously unpin all pinned messages in a chat.
-  - Documented that notifications about new pinned messages are always silent in channels and private chats.
-  - The method `getChatPinnedMessage` now returns the newest pinned message in the chat.
-  - Removed the field `pinned_message_id` from the class `chat`.
-  - Removed the update `updateChatPinnedMessage`.
-* Improved thumbnail representation and added support for animated MPEG4 thumbnails:
-  - Added the class `ThumbnailFormat`, representing the various supported thumbnail formats.
-  - Added the class `thumbnail`, containing information about a thumbnail.
-  - Changed the type of all thumbnail fields from `photoSize` to `thumbnail`.
-  - Added support for thumbnails in the format `thumbnailFormatMpeg4` for some animations and videos.
-  - Replaced the classes `inputInlineQueryResultAnimatedGif` and `inputInlineQueryResultAnimatedMpeg4` with
-    the generic class `inputInlineQueryResultAnimation`.
-  - Added support for animated thumbnails in the class `inputInlineQueryResultAnimation`.
-  - The class `photoSize` is now only used for JPEG images.
-* Improved support for user profile photos and chat photos:
-  - Added the field `photo` to the class `userFullInfo`, containing full information about the user photo.
-  - Added the field `photo` to the class `basicGroupFullInfo`, containing full information about the group photo.
-  - Added the field `photo` to the class `supergroupFullInfo`, containing full information about the group photo.
-  - Renamed the class `chatPhoto` to `chatPhotoInfo`.
-  - Added the field `has_animation` to the classes `profilePhoto` and `chatPhotoInfo`, which is set to true for
-    animated chat photos.
-  - Added the classes `chatPhoto` and `chatPhotos`.
-  - Added minithumbnail support via the field `minithumbnail` in the class `chatPhoto`.
-  - Added the class `animatedChatPhoto`.
-  - Added animated chat photo support via the field `animation` in the class `chatPhoto`.
-  - Removed the classes `userProfilePhoto` and `userProfilePhotos`.
-  - Changed the type of the field `photo` in the class `messageChatChangePhoto` to `chatPhoto`.
-  - Changed the type of the fields `old_photo` and `new_photo` in the class `chatEventPhotoChanged` to `chatPhoto`.
-  - Changed the return type of the method `getUserProfilePhotos` to `chatPhotos`.
-  - Added the class `InputChatPhoto`, representing a chat or a profile photo to set.
-  - Changed the type of the parameter `photo` in the methods `setProfilePhoto` and `setChatPhoto` to
-    the `InputChatPhoto`.
-  - Added the ability to explicitly re-use previously set profile photos using the class `inputChatPhotoPrevious`.
-  - Added the ability to set animated chat photos using the class `inputChatPhotoAnimated`.
-* Added support for message threads in supergroups and channel comments:
-  - Added the field `message_thread_id` to the class `message`.
-  - Added the class `messageThreadInfo`, containing information about a message thread.
-  - Added the class `messageReplyInfo`, containing information about replies to a message.
-  - Added the field `reply_info` to the class `messageInteractionInfo`, containing information about message replies.
-  - Added the field `can_get_message_thread` to the class `message`.
-  - Added the method `getMessageThread`, returning information about the message thread to which a message belongs.
-  - Added the method `getMessageThreadHistory`, returning messages belonging to a message thread.
-  - Added the parameter `message_thread_id` to the methods `sendMessage`, `sendMessageAlbum` and
-    `sendInlineQueryResultMessage` for sending messages within a thread.
-  - Added the parameter `message_thread_id` to the method `searchChatMessages` to search messages within a thread.
-  - Added the parameter `message_thread_id` to the method `viewMessages`.
-  - Added the parameter `message_thread_id` to the method `setChatDraftMessage`.
-  - Added the parameter `message_thread_id` to the method `sendChatAction` to send chat actions to a thread.
-  - Added the field `message_thread_id` to the update `updateUserChatAction`.
-* Improved support for message albums:
-  - Added support for sending and receiving messages of the types `messageAudio` and `messageDocument` as albums.
-  - Added automatic grouping into audio or document albums in the method `forwardMessages` if all forwarded or
-    copied messages are of the same type.
-  - Removed the parameter `as_album` from the method `forwardMessages`. Forwarded message albums are now determined
-    automatically.
-* Simplified usage of methods generating an HTTP link to a message:
-  - Added the class `messageLink`, representing an HTTP link to a message.
-  - Combined the methods `getPublicMessageLink` and `getMessageLink` into the method `getMessageLink`, which
-    now returns a public link to the message if possible and a private link otherwise. The combined method is
-    an offline method now.
-  - Added the parameter `for_comment` to the method `getMessageLink`, which allows to get a message link to the message
-    that opens it in a thread.
-  - Removed the class `publicMessageLink`.
-  - Added the field `for_comment` to the class `messageLinkInfo`.
-  - Added the separate method `getMessageEmbeddingCode`, returning an HTML code for embedding a message.
-* Added the ability to block private messages sent via the @replies bot from chats:
-  - Added the field `is_blocked` to the class `chat`.
-  - Added the update `updateChatIsBlocked`.
-  - Added the method `blockMessageSenderFromReplies`.
-  - Replaced the methods `blockUser` and `unblockUser` with the method `toggleMessageSenderIsBlocked`.
-  - Replaced the method `getBlockedUsers` with the method `getBlockedMessageSenders`.
-* Added support for incoming messages which are replies to messages in different chats:
-  - Added the field `reply_in_chat_id` to the class `message`.
-  - The method `getRepliedMessage` can now return the replied message in a different chat.
-* Renamed the class `sendMessageOptions` to `messageSendOptions`.
-* Added the new `tdapi` static library, which needs to be additionally linked in when static linking is used.
-* Changed the type of the field `value` in the class `optionValueInteger` from `int32` to `int64`.
-* Changed the type of the field `description` in the class `webPage` from `string` to `formattedText`.
-* Improved Instant View support:
-  - Added the field `view_count` to the class `webPageInstantView`.
-  - Added the class `richTextAnchorLink`, containing a link to an anchor on the same page.
-  - Added the class `richTextReference`, containing a reference to a text on the same page.
-  - Removed the field `text` from the class `richTextAnchor`.
-  - Removed the field `url` which is no longer needed from the class `webPageInstantView`.
-* Allowed the update `updateServiceNotification` to be sent before authorization is completed.
-* Disallowed to pass messages in non-strictly increasing order to the method `forwardMessages`.
-* Improved sending copies of messages:
-  - Added the class `messageCopyOptions` and the field `copy_options` to the class `inputMessageForwarded`.
-  - Removed the fields `send_copy` and `remove_caption` from the class `inputMessageForwarded`.
-  - Allowed to replace captions in copied messages using the fields `replace_caption` and `new_caption` in
-    the class `messageCopyOptions`.
-  - Allowed to specify `reply_to_message_id` when sending a copy of a message.
-  - Allowed to specify `reply_markup` when sending a copy of a message.
-* Allowed passing multiple input language codes to `searchEmojis` by replacing the parameter `input_language_code` with
-  the parameter `input_language_codes`.
-* Added support for public service announcements:
-  - Added the class `ChatSource` and the field `source` to the class `chatPosition`.
-  - Added the new type of chat source `chatSourcePublicServiceAnnouncement`.
-  - Added the field `public_service_announcement_type` to the class `messageForwardInfo`.
-* Added support for previewing of private supergroups and channels by their invite link.
-  - The field `chat_id` in the class `chatInviteLinkInfo` is now non-zero for private supergroups and channels to which
-    the temporary read access is granted.
-  - Added the field `accessible_for` to the class `chatInviteLinkInfo`, containing the amount of time for which
-    read access to the chat will remain available.
-* Improved methods for message search:
-  - Replaced the field `next_from_search_id` with a string field `next_offset` in the class `foundMessages`.
-  - Added the field `total_count` to the class `foundMessages`; can be -1 if the total count of matching messages is
-    unknown.
-  - Replaced the parameter `from_search_id` with the parameter `offset` in the method `searchSecretMessages`.
-  - Added the parameter `filter` to the method `searchMessages`.
-  - Added the parameters `min_date` and `max_date` to the method `searchMessages` to search messages sent only within
-    a particular timeframe.
-* Added pkg-config file generation for all installed libraries.
-* Added automatic operating system version detection. Use an empty field `system_version` in
-  the class `tdlibParameters` for the automatic detection.
-* Increased maximum file size from 1500 MB to 2000 MB.
-* Added support for human-friendly Markdown formatting:
-  - Added the synchronous method `parseMarkdown` for human-friendly parsing of text entities.
-  - Added the synchronous method `getMarkdownText` for replacing text entities with a human-friendly
-    Markdown formatting.
-  - Added the writable option "always_parse_markdown" which enables automatic parsing of text entities in
-    all `inputMessageText` objects.
-* Added support for dice with random values in messages:
-  - Added the class `messageDice` to the types of message content; contains a dice.
-  - Added the class `DiceStickers`, containing animated stickers needed to show the dice.
-  - Added the class `inputMessageDice` to the types of new input message content; can be used to send a dice.
-  - Added the update `updateDiceEmojis`, containing information about supported dice emojis.
-* Added support for chat statistics in channels and supergroups:
-  - Added the field `can_get_statistics` to the class `supergroupFullInfo`.
-  - Added the class `ChatStatistics`, which represents a supergroup or a channel statistics.
-  - Added the method `getChatStatistics` returning detailed statistics about a chat.
-  - Added the classes `chatStatisticsMessageInteractionInfo`, `chatStatisticsAdministratorActionsInfo`,
-    `chatStatisticsMessageSenderInfo` and `chatStatisticsInviterInfo` representing various parts of chat statistics.
-  - Added the class `statisticalValue` describing recent changes of a statistical value.
-  - Added the class `StatisticalGraph` describing a statistical graph.
-  - Added the method `getStatisticalGraph`, which can be used for loading asynchronous or zoomed in statistical graphs.
-  - Added the class `dateRange` representing a date range for which statistics are available.
-  - Removed the field `can_view_statistics` from the class `supergroupFullInfo` and marked
-    the method `getChatStatisticsUrl` as disabled and not working.
-* Added support for detailed statistics about interactions with messages:
-  - Added the class `messageInteractionInfo`, containing information about message views, forwards and replies.
-  - Added the field `interaction_info` to the class `message`.
-  - Added the update `updateMessageInteractionInfo`.
-  - Added the field `can_get_statistics` to the class `message`.
-  - Added the class `messageStatistics`.
-  - Added the method `getMessageStatistics`.
-  - Added the method `getMessagePublicForwards`, returning all forwards of a message to public channels.
-  - Removed the now superfluous field `views` from the class `message`.
-  - Removed the now superfluous update `updateMessageViews`.
-* Improved support for native polls:
-  - Added the field `explanation` to the class `pollTypeQuiz`.
-  - Added the fields `close_date` and `open_period` to the class `poll`.
-  - Added the fields `close_date` and `open_period` to the class `inputMessagePoll`; for bots only.
-  - Increased maximum poll question length to 300 characters for bots.
-* Added support for anonymous administrators in supergroups:
-  - Added the field `is_anonymous` to the classes `chatMemberStatusCreator` and `chatMemberStatusAdministrator`.
-  - The field `author_signature` in the class `message` can now contain a custom title of the anonymous administrator
-    that sent the message.
-* Added support for a new type of inline keyboard buttons, requiring user password entry:
-  - Added the class `inlineKeyboardButtonTypeCallbackWithPassword`, representing a button requiring password entry from
-    a user.
-  - Added the class `callbackQueryPayloadDataWithPassword`, representing new type of callback button payload,
-    which must be used for the buttons of the type `inlineKeyboardButtonTypeCallbackWithPassword`.
-* Added support for making the location of the user public:
-  - Added the writable option "is_location_visible" to allow other users see location of the current user.
-  - Added the method `setLocation`, which should be called if `getOption("is_location_visible")` is true and location
-    changes by more than 1 kilometer.
-* Improved Notification API:
-  - Added the field `sender_name` to the class `notificationTypeNewPushMessage`.
-  - Added the writable option "disable_sent_scheduled_message_notifications" for disabling notifications about
-    outgoing scheduled messages that were sent.
-  - Added the field `is_outgoing` to the class `notificationTypeNewPushMessage` for recognizing
-    outgoing scheduled messages that were sent.
-  - Added the fields `has_audios` and `has_documents` to the class `pushMessageContentMediaAlbum`.
-* Added the field `date` to the class `draftMessage`.
-* Added the update `updateStickerSet`, which is sent after a sticker set is changed.
-* Added support for pagination in trending sticker sets:
-  - Added the parameters `offset` and `limit` to the method `getTrendingStickerSets`.
-  - Changed the field `sticker_sets` in the update `updateTrendingStickerSets` to contain only the prefix of
-    trending sticker sets.
-* Messages that failed to send can now be found using the filter `searchMessagesFilterFailedToSend`.
-* Added the ability to disable automatic server-side file type detection using the new field
-  `disable_content_type_detection` of the class `inputMessageDocument`.
-* Improved chat action bar:
-  - Added the field `can_unarchive` to the classes `chatActionBarReportSpam` and `chatActionBarReportAddBlock`,
-    which is true whenever the chat was automatically archived.
-  - Added the field `distance` to the class `chatActionBarReportAddBlock`,
-    which denotes the distance between the users.
-* Added support for actions suggested to the user by the server:
-  - Added the class `SuggestedAction`, representing possible actions suggested by the server.
-  - Added the update `updateSuggestedActions`.
-  - Added the method `hideSuggestedAction`, which can be used to dismiss a suggested action.
-* Supported attaching stickers to animations:
-  - Added the field `has_stickers` to the class `animation`.
-  - Added the field `added_sticker_file_ids` to the class `inputMessageAnimation`.
-* Added methods for phone number formatting:
-  - Added the class `countryInfo`, describing a country.
-  - Added the class `countries`, containing a list of countries.
-  - Added the method `getCountries`, returning a list of all existing countries.
-  - Added the class `phonenumberinfo` and the method `getPhoneNumberInfo`, which can be used to format a phone number
-    according to local rules.
-* Improved location support:
-  - Added the field `horizontal_accuracy` to the class `location`.
-  - Added the field `heading` to the classes `messageLocation` and `inputMessageLocation` for live locations.
-  - Added the parameter `heading` to the methods `editMessageLiveLocation` and `editInlineMessageLiveLocation`.
-* Added support for proximity alerts in live locations:
-  - Added the field `proximity_alert_radius` to the classes `messageLocation` and `inputMessageLocation`.
-  - Added the parameter `proximity_alert_radius` to the methods `editMessageLiveLocation` and
-    `editInlineMessageLiveLocation`.
-  - Added the new message content `messageProximityAlertTriggered`, received whenever a proximity alert is triggered.
-* Added `CentOS 7` and `CentOS 8` operating systems to the
-  [TDLib build instructions generator](https://tdlib.github.io/td/build.html).
-* Added the CMake configuration option TD_ENABLE_MULTI_PROCESSOR_COMPILATION, which can be used to enable parallel
-  build with MSVC.
-* Added support for sending and receiving messages in secret chats with silent notifications.
-* Added the field `progressive_sizes` to the class `photo` to allow partial progressive JPEG photo download.
-* Added the field `redirect_stderr` to the class `logStreamFile` to allow explicit control over stderr redirection to
-  the log file.
-* Added the read-only option "can_archive_and_mute_new_chats_from_unknown_users", which can be used to check, whether
-  the option "archive_and_mute_new_chats_from_unknown_users" can be changed.
-* Added the writable option "archive_and_mute_new_chats_from_unknown_users", which can be used to automatically archive
-  and mute new chats from non-contacts. The option can be set only if the option
-  "can_archive_and_mute_new_chats_from_unknown_users" is true.
-* Added the writable option "message_unload_delay", which can be used to change the minimum delay before messages are
-  unloaded from the memory.
-* Added the writable option "disable_persistent_network_statistics", which can be used to disable persistent
-  network usage statistics, significantly reducing disk usage.
-* Added the writable option "disable_time_adjustment_protection", which can be used to disable protection from
-  external time adjustment, significantly reducing disk usage.
-* Added the writable option "ignore_default_disable_notification" to allow the application to manually specify the
-  `disable_notification` option each time when sending messages instead of following the default per-chat settings.
-* Added the read-only option "telegram_service_notifications_chat_id", containing the identifier of
-  the Telegram service notifications chat.
-* Added the read-only option "replies_bot_chat_id", containing the identifier of the @replies bot.
-* Added the read-only option "group_anonymous_bot_user_id", containing the identifier of the bot which is shown as
-  the sender of anonymous group messages when viewed from an outdated client.
-* Added the new venue provider value "gplaces" for Google Places.
-* Added the parameter `return_deleted_file_statistics` to the method `optimizeStorage` to return information about
-  the files that were deleted instead of the ones that were not.
-* Added the ability to search for supergroup members to mention by their name and username:
-  - Added the new filter `supergroupMembersFilterMention` for the method `getSupergroupMembers`.
-  - Added the new filter `chatMembersFilterMention` for the method `searchChatMembers`.
-* Added support for highlighting bank card numbers:
-  - Added the new text entity `textEntityTypeBankCardNumber`.
-  - Added the classes `bankCardInfo` and `bankCardActionOpenUrl`, containing information about a bank card.
-  - Added the method `getBankCardInfo`, returning information about a bank card.
-* Improved methods for managing sticker sets by bots:
-  - Added the method `setStickerSetThumbnail`.
-  - Added the ability to create new animated sticker sets and add new stickers to them by adding
-    the class `inputStickerAnimated`.
-  - Renamed the class `inputSticker` to `inputStickerStatic`.
-  - Renamed the field `png_sticker` to `sticker` in the class `inputStickerStatic`.
-* Added the method `setCommands` for bots.
-* Added the method `getCallbackQueryMessage` for bots.
-* Added support for starting bots in private chats through `sendBotStartMessage`.
-* Added the field `total_count` to the class `chats`. The field should have a precise value for the responses of
-  the methods `getChats`, `searchChats` and `getGroupsInCommon`.
-* Added the update `updateAnimationSearchParameters`, containing information about animation search parameters.
-* Documented that `getRepliedMessage` can be used to get a pinned message, a game message, or an invoice message for
-  messages of the types `messagePinMessage`, `messageGameScore`, and `messagePaymentSuccessful` respectively.
-* Added guarantees that the field `member_count` in the class `supergroup` is known if the supergroup was received from
-  the methods `searchChatsNearby`, `getInactiveSupergroupChats`, `getSuitableDiscussionChats`, `getGroupsInCommon`, or
-  `getUserPrivacySettingRules`.
-* Updated SQLCipher to 4.4.0.
-* Updated dependencies in the prebuilt TDLib for Android:
-  - Updated SDK to SDK 30.
-  - Updated NDK to r21d, which dropped support for 32-bit ARM devices without Neon support.
-* Updated recommended `emsdk` version for `tdweb` building to the 2.0.6.
-* Removed the ability to change the update handler after client creation in native .NET binding, Java example and
-  prebuilt library for Android.
-* Removed the ability to change the default exception handler after client creation in Java example and
-  prebuilt library for Android.
-* Removed the ability to close Client using close() method in Java example and prebuilt library for Android.
-  Use the method TdApi.close() instead.
-* Changed license of source code in prebuilt library for Android to Boost Software License, Version 1.0.
-
------------------------------------------------------------------------------------------------------------------------
-
-Changes in 1.6.0 (31 Jan 2020):
-
-* Added support for multiple chat lists. Currently, only two chat lists Main and Archive are supported:
-  - Added the class `ChatList`, which represents a chat list and could be `chatListMain` or `chatListArchive`.
-  - Added the field `chat_list` to the class `chat`, denoting the chat list to which the chat belongs.
-  - Added the parameter `chat_list` to the methods `getChats`, `searchMessages` and `setPinnedChats`.
-  - Added the field `chat_list` to the updates `updateUnreadMessageCount` and `updateUnreadChatCount`.
-  - Added the field `total_count` to the update `updateUnreadChatCount`, containing the total number of chats in
-    the list.
-  - Added the update `updateChatChatList`, which is sent after a chat is moved to or from a chat list.
-  - Added the method `setChatChatList`, which can be used to move a chat between chat lists.
-  - Added the option `pinned_archived_chat_count_max` for the maximum number of pinned chats in the Archive chat list.
-* Added support for scheduled messages:
-  - Added the classes `messageSchedulingStateSendAtDate` and `messageSchedulingStateSendWhenOnline`,
-    representing the scheduling state of a message.
-  - Added the field `scheduling_state` to the class `message`, which allows to distinguish between scheduled and
-    ordinary messages.
-  - The update `updateNewMessage` can now contain a scheduled message and must be handled appropriately.
-  - The updates `updateMessageContent`, `updateDeleteMessages`, `updateMessageViews`, `updateMessageSendSucceeded`,
-    `updateMessageSendFailed`, and `updateMessageSendAcknowledged` can now contain identifiers of scheduled messages.
-  - Added the class `sendMessageOptions`, which contains options for sending messages,
-    including the scheduling state of the messages.
-  - Replaced the parameters `disable_notification` and `from_background` in the methods `sendMessage`,
-    `sendMessageAlbum`, `sendInlineQueryResultMessage`, and `forwardMessages` with the new field `options` of
-    the type `sendMessageOptions`.
-  - Added the method `editMessageSchedulingState`, which can be used to reschedule a message or send it immediately.
-  - Added the method `getChatScheduledMessages`, which returns all scheduled messages in a chat.
-  - Added the field `has_scheduled_messages` to the class `chat`.
-  - Added the update `updateChatHasScheduledMessages`, which is sent whenever the field `has_scheduled_messages`
-    changes in a chat.
-  - Added support for reminders in Saved Messages and notifications about other sent scheduled messages in
-    the [Notification API](https://core.telegram.org/tdlib/notification-api/).
-* Added support for adding users without a known phone number to the list of contacts:
-  - Added the method `addContact` for adding or renaming contacts without a known phone number.
-  - Added the field `need_phone_number_privacy_exception` to the class `userFullInfo`, containing the default value for
-    the second parameter of the method `addContact`.
-  - Added the fields `is_contact` and `is_mutual_contact` to the class `user`.
-  - Removed the class `LinkState` and the fields `outgoing_link` and `incoming_link` from the class `user`.
-* Improved support for the top chat action bar:
-  - Added the class `ChatActionBar`, representing all possible types of the action bar.
-  - Added the field `action_bar` to the class `chat`.
-  - Removed the legacy class `chatReportSpamState`.
-  - Removed the legacy methods `getChatReportSpamState` and `changeChatReportSpamState`.
-  - Added the update `updateChatActionBar`.
-  - Added the method `removeChatActionBar`, which allows to dismiss the action bar.
-  - Added the method `sharePhoneNumber`, allowing to share the phone number of the current user with a mutual contact.
-  - Added the new reason `chatReportReasonUnrelatedLocation` for reporting location-based groups unrelated to
-    their stated location.
-* Improved support for text entities:
-  - Added the new types of text entities `textEntityTypeUnderline` and `textEntityTypeStrikethrough`.
-  - Added support for nested entities. Entities can be nested, but must not mutually intersect with each other.
-    Pre, Code and PreCode entities can't contain other entities. Bold, Italic, Underline and Strikethrough entities can
-    contain and be contained in all other entities. All other entities can't contain each other.
-  - Added the field `version` to the method `textParseModeMarkdown`. Versions 0 and 1 correspond to Bot API Markdown
-    parse mode, version 2 to Bot API MarkdownV2 parse mode with underline, strikethrough and nested entities support.
-  - The new entity types and nested entities are supported in secret chats also if its layer is at least 101.
-* Added support for native non-anonymous, multiple answer, and quiz-style polls:
-  - Added support for quiz-style polls, which has exactly one correct answer option and can be answered only once.
-  - Added support for regular polls, which allows multiple answers.
-  - Added the classes `pollTypeRegular` and `pollTypeQuiz`, representing the possible types of a poll.
-  - Added the field `type` to the classes `poll` and `inputMessagePoll`.
-  - Added support for non-anonymous polls with visible votes by adding the field `is_anonymous` to the classes `poll`
-    and `inputMessagePoll`.
-  - Added the method `getPollVoters` returning users that voted for the specified option in a non-anonymous poll.
-  - Added the new reply markup keyboard button `keyboardButtonTypeRequestPoll`.
-  - Added the field `is_regular` to the class `pushMessageContentPoll`.
-  - Added the update `updatePollAnswer` for bots only.
-  - Added the field `is_closed` to the class `inputMessagePoll`, which can be used by bots to send a closed poll.
-* Clarified in the documentation that file remote ID is guaranteed to be usable only if the corresponding file is
-  still accessible to the user and is known to TDLib. For example, if the file is from a message, then the message
-  must be not deleted and accessible to the user. If the file database is disabled, then the corresponding object with
-  the file must be preloaded by the client.
-* Added support for administrator custom titles:
-  - Added the field `custom_title` to `chatMemberStatusCreator` and `chatMemberStatusAdministrator` classes.
-  - Added the classes `chatAdministrator` and `chatAdministrators`, containing user identifiers along with
-    their custom administrator title and owner status.
-  - Replaced the result type of the method `getChatAdministrators` with `chatAdministrators`.
-* Improved Instant View support:
-  - Added the new web page block `pageBlockVoiceNote`.
-  - Changed value of invisible cells in `pageBlockTableCell` to null.
-  - Added the field `is_cached` to the class `richTextUrl`.
-* Improved support for chat backgrounds:
-  - Added the classes `backgroundFillSolid` for solid color backgrounds and `backgroundFillGradient` for
-    gradient backgrounds.
-  - Added support for TGV (gzipped subset of SVG with MIME type "application/x-tgwallpattern") background patterns
-    in addition to PNG patterns. Background pattern thumbnails are still always in PNG format.
-  - Replaced the field `color` in the class `backgroundTypePattern` with the field `fill` of type `BackgroundFill`.
-  - Replaced the class `backgroundTypeSolid` with the class `backgroundTypeFill`.
-* Added support for discussion groups for channel chats:
-  - Added the field `linked_chat_id` to the class `supergroupFullInfo` containing the identifier of a discussion
-    supergroup for the channel, or a channel, for which the supergroup is the designated discussion supergroup.
-  - Added the field `has_linked_chat` to the class `supergroup`.
-  - Added the method `getSuitableDiscussionChats`, which returns a list of chats which can be assigned as
-    a discussion group for a channel by the current user.
-  - Added the method `setChatDiscussionGroup`, which can be used to add or remove a discussion group from a channel.
-  - Added the class `chatEventLinkedChatChanged` representing a change of the linked chat in the chat event log.
-* Added support for slow mode in supergroups:
-  - Added the field `is_slow_mode_enabled` to the class `supergroup`.
-  - Added the field `slow_mode_delay` to the class `supergroupFullInfo`.
-  - Added the method `setChatSlowModeDelay`, which can be used to change the slow mode delay setting in a supergroup.
-  - Added the class `chatEventSlowModeDelayChanged` representing a change of the slow mode delay setting in
-    the chat event log.
-* Improved privacy settings support:
-  - Added the classes `userPrivacySettingRuleAllowChatMembers` and `userPrivacySettingRuleRestrictChatMembers`
-    to include or exclude all group members in a privacy setting rule.
-  - Added the class `userPrivacySettingShowPhoneNumber` for managing the visibility of the user's phone number.
-  - Added the class `userPrivacySettingAllowFindingByPhoneNumber` for managing whether the user can be found by
-    their phone number.
-* Added the method `checkCreatedPublicChatsLimit` for checking whether the maximum number of owned public chats
-  has been reached.
-* Added support for transferring ownership of supergroup and channel chats:
-  - Added the method `transferChatOwnership`.
-  - Added the class `CanTransferOwnershipResult` and the method `canTransferOwnership` for checking
-    whether chat ownership can be transferred from the current session.
-* Added support for location-based supergroups:
-  - Added the class `chatLocation`, which contains the location to which the supergroup is connected.
-  - Added the field `has_location` to the class `supergroup`.
-  - Added the field `location` to the class `supergroupFullInfo`.
-  - Added the ability to create location-based supergroups via the new field `location` in
-    the method `createNewSupergroupChat`.
-  - Added the method `setChatLocation`, which allows to change location of location-based supergroups.
-  - Added the field `can_set_location` to the class `supergroupFullInfo`.
-  - Added the class `PublicChatType`, which can be one of `publicChatTypeHasUsername` or
-    `publicChatTypeIsLocationBased`.
-  - Added the parameter `type` to the method `getCreatedPublicChats`, which allows to get location-based supergroups
-    owned by the user.
-  - Supported location-based supergroups as public chats where appropriate.
-  - Added the class `chatEventLocationChanged` representing a change of the location of a chat in the chat event log.
-* Added support for searching chats and users nearby:
-  - Added the classes `chatNearby` and `chatsNearby`, containing information about chats along with
-    the distance to them.
-  - Added the method `searchChatsNearby`, which returns chats and users nearby.
-  - Added the update `updateUsersNearby`, which is sent 60 seconds after a successful `searchChatsNearby` request.
-* Improved support for inline keyboard buttons of the type `inlineKeyboardButtonTypeLoginUrl`:
-  - Added the class `LoginUrlInfo` and the method `getLoginUrlInfo`, which allows to get information about
-    an inline button of the type `inlineKeyboardButtonTypeLoginUrl`.
-  - Added the method `getLoginUrl` for automatic authorization on the target website.
-* Improved support for content restrictions:
-  - The field `restriction_reason` in the classes `user` and `channel` now contains only a human-readable description
-    why access must be restricted. It is non-empty if and only if access to the chat needs to be restricted.
-  - Added the field `restriction_reason` to the class `message`. It is non-empty if and only if access to the message
-    needs to be restricted.
-  - Added the writable option `ignore_platform_restrictions`, which can be set in non-store apps to ignore restrictions
-    specific to the currently used operating system.
-  - Added the writable option `ignore_sensitive_content_restrictions`, which can be set to show sensitive content on
-    all user devices. `getOption("ignore_sensitive_content_restrictions")` can be used to fetch the actual value of
-    the option, the option will not be immediately updated after a change from another device.
-  - Added the read-only option `can_ignore_sensitive_content_restrictions`, which can be used to check, whether
-    the option `ignore_sensitive_content_restrictions` can be changed.
-* Added support for QR code authentication for already registered users:
-  - Added the authorization state `authorizationStateWaitOtherDeviceConfirmation`.
-  - Added the method `requestQrCodeAuthentication`, which can be used in the `authorizationStateWaitPhoneNumber` state
-    instead of the method `setAuthenticationPhoneNumber` to request QR code authentication.
-  - Added the method `confirmQrCodeAuthentication` for authentication confirmation from another device.
-* Added the update `updateMessageLiveLocationViewed`, which is supposed to trigger an edit of the corresponding
-  live location.
-* Added the parameter `input_language_code` to the method `searchEmojis`.
-* Added the method `getInactiveSupergroupChats`, to be used when the user receives a CHANNELS_TOO_MUCH error after
-  reaching the limit on the number of joined supergroup and channel chats.
-* Added the field `unique_id` to the class `remoteFile`, which can be used to identify the same file for
-  different users.
-* Added the new category of top chat list `topChatCategoryForwardChats`.
-* Added the read-only option `animated_emoji_sticker_set_name`, containing name of a sticker set with animated emojis.
-* Added the read-only option `unix_time`, containing an estimation of the current Unix timestamp.
-  The option will not be updated automatically unless the difference between the previous estimation and
-  the locally available monotonic clocks changes significantly.
-* Added the field `is_silent` to the class `notification`, so silent notifications can be shown with
-  the appropriate mark.
-* Added the field `video_upload_bitrate` to the class `autoDownloadSettings`.
-* Disallowed to call `setChatNotificationSettings` method on the chat with self, which never worked.
-* Added support for `ton://` URLs in messages and inline keyboard buttons.
-
------------------------------------------------------------------------------------------------------------------------
-
-Changes in 1.5.0 (9 Sep 2019):
-
-* Changed authorization workflow:
-  - Added the state `authorizationStateWaitRegistration`, which will be received after `authorizationStateWaitCode` for
-    users who are not registered yet.
-  - Added the method `registerUser`, which must be used in the `authorizationStateWaitRegistration` state to finish
-    registration of the user.
-  - Removed the fields `is_registered` and `terms_of_service` from the class `authorizationStateWaitCode`.
-  - Removed the parameters `first_name` and `last_name` from the method `checkAuthenticationCode`.
-* Added support for messages with an unknown sender (zero `sender_user_id`) in private chats, basic groups and
-  supergroups. Currently, the sender is unknown for posts in channels and for channel posts automatically forwarded to
-  the discussion group.
-* Added support for the new permission system for non-administrator users in groups:
-  - Added the class `chatPermissions` containing all supported permissions, including new permissions `can_send_polls`,
-    `can_change_info`, `can_invite_users` and `can_pin_messages`.
-  - Added the field `permissions` to the class `chat`, describing actions that non-administrator chat members are
-    allowed to take in the chat.
-  - Added the update `updateChatPermissions`.
-  - Added the method `setChatPermissions` for changing chat permissions.
-  - Added the class `chatEventPermissionsChanged` representing a change of chat permissions in the chat event log.
-  - Replaced the fields `can_send_messages`, `can_send_media_messages`, `can_send_other_messages`,
-    `can_add_web_page_previews` in the class `chatMemberStatusRestricted` with the field `permissions` of
-    the type `chatPermissions`.
-  - Removed the field `everyone_is_administrator` from the `basicGroup` class in favor of the field `permissions` of
-    the class `chat`.
-  - Removed the field `anyone_can_invite` from the `supergroup` class in favor of the field `permissions` of
-    the class `chat`.
-  - Removed the method `toggleBasicGroupAdministrators` in favor of `setChatPermissions`.
-  - Removed the method `toggleSupergroupInvites` in favor of `setChatPermissions`.
-  - Renamed the field `anyone_can_invite` to `can_invite_users` in the class `chatEventInvitesToggled`.
-  - The permissions `can_send_other_messages` and `can_add_web_page_previews` now imply only `can_send_messages`
-    instead of `can_send_media_messages`.
-  - Allowed administrators in basic groups to use the method `generateChatInviteLink`.
-* Added out of the box `OpenBSD` and `NetBSD` operating systems support.
-* Added possibility to use `LibreSSL` >= 2.7.0 instead of `OpenSSL` to build TDLib.
-* Added instructions for building TDLib on `Debian 10`, `OpenBSD` and `NetBSD` to
-  the [TDLib build instructions generator](https://tdlib.github.io/td/build.html).
-* Added support for Backgrounds 2.0:
-  - Added the classes `BackgroundType`, `background`, `backgrounds` and `InputBackground`.
-  - Added the method `getBackground` returning the list of backgrounds installed by the user.
-  - Added the method `setBackground` for changing the background selected by the user.
-  - Added the update `updateSelectedBackground`, which is sent right after a successful initialization and whenever
-    the selected background changes.
-  - Added the method `removeBackground` for removing a background from the list of installed backgrounds.
-  - Added the method `resetBackgrounds` for restoring the default list of installed backgrounds.
-  - Added the method `searchBackground` returning a background by its name.
-  - Added the method `getBackgroundUrl` returning a persistent URL for a background.
-  - Removed the `getWallpapers` method.
-  - Removed the `wallpaper` and the `wallpapers` classes.
-  - The class `fileTypeWallpaper` can be used for remote file identifiers of both old wallpapers and new backgrounds.
-* Added support for descriptions in basic groups:
-  - Added the field `description` to the class `basicGroupFullInfo`.
-  - Replaced the method `setSupergroupDescription` with `setChatDescription` which can be used for any chat type.
-* Added support for emoji suggestions:
-  - Added the method `searchEmojis` for searching emojis by keywords.
-  - Added the method `getEmojiSuggestionsUrl`, which can be used to automatically log in to the translation platform
-    and suggest new emoji replacements.
-  - Renamed the class `stickerEmojis` to `emojis`.
-* Changed type of the fields `old_photo` and `new_photo` in the class `chatEventPhotoChanged` from `chatPhoto` to
-  `photo`.
-* Changed recommended size for `inputThumbnail` from 90x90 to 320x320.
-* Combined all supported settings for phone number authentication:
-  - Added the class `phoneNumberAuthenticationSettings` which contains all the settings.
-  - Replaced the parameters `is_current_phone_number` and `allow_flash_call` in the methods
-    `setAuthenticationPhoneNumber`, `sendPhoneNumberConfirmationCode`, `sendPhoneNumberVerificationCode` and
-    `changePhoneNumber` with the parameter `settings` of the type `phoneNumberAuthenticationSettings`.
-  - Added support for automatic SMS code verification for official applications via the new field `allow_app_hash` in
-    the class `phoneNumberAuthenticationSettings`.
-* Added support for auto-download settings presets.
-  - Added the classes `autoDownloadSettings` and `autoDownloadSettingsPresets`.
-  - Added the method `getAutoDownloadSettingsPresets` for getting the settings.
-  - Added the method `setAutoDownloadSettings`, which needs to be called whenever the user changes the settings.
-* Added support for minithumbnails - thumbnail images of a very poor quality and low resolution:
-  - Added the class `minithumbnail`.
-  - Added the field `minithumbnail` to `animation`, `document`, `photo`, `video` and `videoNote` classes.
-  - Added the field `audio_cover_minithumbnail` to the class `audio`.
-* Added support for resending messages which failed to send:
-  - Added the fields `error_code`, `error_message`, `can_retry` and `retry_after` to
-    the class `messageSendingStateFailed`.
-  - Added the method `resendMessages`.
-* Added the field `is_animated` to the `sticker`, `stickerSet` and `stickerSetInfo` classes.
-  Animated stickers can be received anywhere where non-animated stickers can appear.
-* Added the parameters `send_copy` and `remove_caption` to the `forwardMessages` method to allow forwarding of
-  messages without links to the originals.
-* Added the fields `send_copy` and `remove_caption` to `inputMessageForwarded` method to allow forwarding of
-  a message without link to the original message.
-* Added the method `getMessageLinkInfo` for getting information about a link to a message in a chat.
-* Added the class `userPrivacySettingShowProfilePhoto` for managing visibility of the user's profile photo.
-* Added the class `userPrivacySettingShowLinkInForwardedMessages` for managing whether a link to the user's account is
-  included with forwarded messages.
-* Added the field `thumbnail` to the classes `stickerSet` and `stickerSetInfo`, containing a thumbnail for
-  the sticker set.
-* Added the field `is_scam` to the classes `user` and `supergroup`.
-* Added a new kind of inline keyboard button `inlineKeyboardButtonTypeLoginUrl`, which for the moment must be processed
-  in the same way as an `inlineKeyboardButtonTypeUrl`.
-* Added the new class `supergroupMembersFilterContacts`, allowing to only search for contacts
-  in `getSupergroupMembers`.
-* Added the new class `chatMembersFilterContacts`, allowing to only search for contacts in `searchChatMembers`.
-* Added the class `chatEventPollStopped` representing the closing of a poll in a message in the chat event log.
-* Added ability to specify the exact types of problems with a call in the method `sendCallRating` and
-  the new class `CallProblem`.
-* Changes in [tdweb](https://github.com/tdlib/td/blob/master/example/web/):
-  - Supported non-zero `offset` and `limit` in `readFilePart`.
-
------------------------------------------------------------------------------------------------------------------------
-
-Changes in 1.4.0 (1 May 2019):
-
-* Added a [TDLib build instructions generator](https://tdlib.github.io/td/build.html), covering in details
-  TDLib building on the most popular operating systems.
-* Added an example of TDLib building and usage from a browser.
-  See https://github.com/tdlib/td/blob/master/example/web/ for more details.
-* Allowed to pass NULL pointer to `td_json_client_execute` instead of a previously created JSON client.
-  Now you can use synchronous TDLib methods through a JSON interface before creating a TDLib JSON client.
-* Added support for media streaming by allowing to download any part of a file:
-  - Added the `offset` parameter to `downloadFile` which specifies the starting position
-    from which the file should be downloaded.
-  - Added the `limit` parameter to `downloadFile` which specifies how many bytes should be downloaded starting from
-    the `offset` position.
-  - Added the field `download_offset` to the class `localFile` which contains the current download offset.
-  - The field `downloaded_prefix_size` of the `localFile` class now contains the number of available bytes
-    from the position `download_offset` instead of from the beginning of the file.
-  - Added the method `getFileDownloadedPrefixSize` which can be used to get the number of locally available file bytes
-    from a given offset without actually changing the download offset.
-* Added the parameter `synchronous` to `downloadFile` which causes the request to return the result only after
-  the download is completed.
-* Added support for native polls in messages:
-  - Added `messagePoll` to the types of message content; contains a poll.
-  - Added the classes `poll` and `pollOption` describing a poll and a poll answer option respectively.
-  - Added `inputMessagePoll` to the types of new input message content; can be used to send a poll.
-  - Added the method `setPollAnswer` which can be used for voting in polls.
-  - Added the method `stopPoll` which can be used to stop polls. Use the `Message.can_be_edited` field to check whether
-    this method can be called on a message.
-  - Added the update `updatePoll` for bots only. Ordinary users receive poll updates through `updateMessageContent`.
-* Added a Notification API. See article https://core.telegram.org/tdlib/notification-api for a detailed description.
-  - Added the class `pushReceiverId` which contains a globally unique identifier of the push notification subscription.
-  - Changed the return type of the method `registerDevice` to `pushReceiverId` to allow matching of push notifications
-    with TDLib instances.
-  - Removed the fields `disable_notification` and `contains_mention` from `updateNewMessage`.
-  - Renamed the class `deviceTokenGoogleCloudMessaging` to `deviceTokenFirebaseCloudMessaging`.
-  - Added the field `encrypt` to classes `deviceTokenApplePushVoIP` and `deviceTokenFirebaseCloudMessaging`
-    which allows to subscribe for end-to-end encrypted push notifications.
-  - Added the option `notification_group_count_max` which can be used to enable the Notification API and set
-    the maximum number of notification groups to be shown simultaneously.
-  - Added the option `notification_group_size_max` which can be used to set the maximum number of simultaneously shown
-    notifications in a group.
-  - Added the synchronous method `getPushReceiverId` for matching a push notification with a TDLib instance.
-  - Added the method `processPushNotification` for handling of push notifications.
-  - Removed the method `processDcUpdate` in favor of the general `processPushNotification` method.
-  - Added the update `updateNotificationGroup`, sent whenever a notification group changes.
-  - Added the update `updateNotification`, sent whenever a notification changes.
-  - Added the update `updateActiveNotifications` for syncing the list of active notifications on startup.
-  - Added the update `updateHavePendingNotifications` which can be used to improve lifetime handling of
-    the TDLib instance.
-  - Added the possibility to disable special handling of notifications about pinned messages via the new settings
-    `use_default_disable_pinned_message_notifications`, `disable_pinned_message_notifications` in
-    the class `chatNotificationSettings` and the new setting `disable_pinned_message_notifications` in
-    the class `scopeNotificationSettings`.
-  - Added the possibility to disable special handling of notifications about mentions and replies via the new settings
-    `use_default_disable_mention_notifications`, `disable_mention_notifications` in
-    the class `chatNotificationSettings` and the new setting `disable_mention_notifications` in
-    the class `scopeNotificationSettings`.
-  - Added the class `PushMessageContent` describing the content of a notification, received through
-    a push notification.
-  - Added the class `NotificationType` describing a type of notification.
-  - Added the class `notification` containing information about a notification.
-  - Added the class `NotificationGroupType` describing a type of notification group.
-  - Added the class `notificationGroup` describing a state of a notification group.
-  - Added the methods `removeNotification` and `removeNotificationGroup` for handling notifications removal
-    by the user.
-  - Added the separate notification scope `notificationSettingsScopeChannelChats` for channel chats.
-* Added support for pinned notifications in basic groups and Saved Messages:
-  - Added the field `pinned_message_id` to the class `chat`.
-  - Removed the field `pinned_message_id` from the class `supergroupFullInfo` in favor of `chat.pinned_message_id`.
-  - Added the update `updateChatPinnedMessage`.
-  - The right `can_pin_messages` is now applicable to both basic groups and supergroups.
-  - Replaced the method `pinSupergroupMessage` with `pinChatMessage` which can be used for any chat type.
-  - Replaced the method `unpinSupergroupMessage` with `unpinChatMessage` which can be used for any chat type.
-* Added new synchronous methods for managing TDLib internal logging. The old functions are deprecated and
-  will be removed in TDLib 2.0.0.
-  - Added the synchronous method `setLogStream` for changing the stream to which the TDLib internal log is written.
-  - Added the synchronous method `getLogStream` for getting information about the currently used log stream.
-  - Added the classes `logStreamDefault`, `logStreamFile` and `logStreamEmpty` describing different supported kinds of
-    log streams.
-  - Added the class `logVerbosityLevel` containing the verbosity level of the TDLib internal log.
-  - Added the class `logTags` containing a list of available TDLib internal log tags.
-  - Added the synchronous method `setLogVerbosityLevel` for changing verbosity level of logging.
-  - Added the synchronous method `getLogVerbosityLevel` for getting the current verbosity level of logging.
-  - Added the synchronous method `getLogTags` returning all currently supported log tags.
-  - Added the synchronous method `setLogTagVerbosityLevel` for changing the verbosity level of logging for
-    some specific part of the code.
-  - Added the synchronous method `getLogTagVerbosityLevel` for getting the current verbosity level for a specific part
-    of the code.
-  - Added the synchronous method `addLogMessage` for using the TDLib internal log by the application.
-* Added support for Instant View 2.0:
-  - Replaced the field `has_instant_view` in class `webPage` with the `instant_view_version` field.
-  - Added the field `version` to the class `webPageInstantView`.
-  - Added the class `pageBlockCaption`.
-  - Changed the type of `caption` fields in `pageBlockAnimation`, `pageBlockAudio`, `pageBlockPhoto`, `pageBlockVideo`,
-    `pageBlockEmbedded`, `pageBlockEmbeddedPost`, `pageBlockCollage` and `pageBlockSlideshow` from
-    `RichText` to `pageBlockCaption`.
-  - Added the class `pageBlockListItem` and replaced the content of the `pageBlockList` class with a list of
-    `pageBlockListItem`.
-  - Added 6 new kinds of `RichText`: `richTextSubscript`, `richTextSuperscript`, `richTextMarked`,
-    `richTextPhoneNumber`, `richTextIcon` and `richTextAnchor`.
-  - Added new classes `pageBlockRelatedArticle`, `PageBlockHorizontalAlignment`, `PageBlockVerticalAlignment` and
-    `pageBlockTableCell`.
-  - Added new block types `pageBlockKicker`, `pageBlockRelatedArticles`, `pageBlockTable`, `pageBlockDetails` and
-    `pageBlockMap`.
-  - Added the flag `is_rtl` to the class `webPageInstantView`.
-  - Renamed the field `caption` in classes `pageBlockBlockQuote` and `pageBlockPullQuote` to `credit`.
-  - Dimensions in `pageBlockEmbedded` can now be unknown.
-  - Added the field `url` to `pageBlockPhoto` which contains a URL that needs to be opened when the photo is clicked.
-  - Added the field `url` to `webPageInstantView` which must be used for the correct handling of anchors.
-* Added methods for confirmation of the 2-step verification recovery email address:
-  - Added the method `checkRecoveryEmailAddressCode` for checking the verification code.
-  - Added the method `resendRecoveryEmailAddressCode` for resending the verification code.
-  - Replaced the field `unconfirmed_recovery_email_address_pattern` in the class `passwordState` with
-    the `recovery_email_address_code_info` field containing full information about the code.
-  - The necessity of recovery email address confirmation in `setPassword` and `setRecoveryEmailAddress` methods
-    is now returned by the corresponding `passwordState` and not by the error `EMAIL_UNCONFIRMED`.
-* Improved the `MessageForwardInfo` class and added support for hidden original senders:
-  - Removed the old `messageForwardedPost` and `messageForwardedFromUser` classes.
-  - Added the class `messageForwardInfo` which contains information about the origin of the message, original sending
-    date and identifies the place from which the message was forwarded the last time for messages forwarded to
-    Saved Messages.
-  - Added the classes `messageForwardOriginUser`, `messageForwardOriginHiddenUser` and `messageForwardOriginChannel`
-    which describe the exact origins of a message.
-* Improved getting the list of user profile photos:
-  - Added the class `userProfilePhoto`, containing `id`, `added_date` and `sizes` of a profile photo.
-  - Changed the type of the field `photos` in `userProfilePhotos` to a list of `userProfilePhoto` instead of
-    a list of `photo`. `getUserProfilePhotos` now returns a date for each profile photo.
-  - Removed the field `id` from the class `photo` (this field was only needed in the result of `getUserProfilePhotos`).
-* Added the possibility to get a Telegram Passport authorization form before asking the user for a password:
-  - Removed the parameter `password` from the method `getPassportAuthorizationForm`.
-  - Moved the fields `elements` and `errors` from the class `passportAuthorizationForm` to
-    the new class `passportElementsWithErrors`.
-  - Added the method `getPassportAuthorizationFormAvailableElements` that takes the user's password and
-    returns previously uploaded Telegram Passport elements and errors in them.
-* Added the field `file_index` to the classes `passportElementErrorSourceFile` and
-  `passportElementErrorSourceTranslationFile`.
-* Added the method `getCurrentState` returning all updates describing the current `TDLib` state. It can be used to
-  restore the correct state after connecting to a running TDLib instance.
-* Added the class `updates` which contains a list of updates and is returned by the `getCurrentState` method.
-* Added the update `updateChatOnlineMemberCount` which is automatically sent for open group chats if the number of
-  online members in a group changes.
-* Added support for custom language packs downloaded from the server:
-  - Added the fields `base_language_pack_id`` to the class `languagePackInfo`. Strings from the base language pack
-    must be used for untranslated keys from the chosen language pack.
-  - Added the fields `plural_code`, `is_official`, `is_rtl`, `is_beta`, `is_installed`, `total_string_count`,
-    `translated_string_count`, `translation_url` to the class `languagePackInfo`.
-  - Added the method `addCustomServerLanguagePack` which adds a custom server language pack to the list of
-    installed language packs.
-  - Added the method `getLanguagePackInfo` which can be used for handling `https://t.me/setlanguage/...` links.
-  - Added the method `synchronizeLanguagePack` which can be used to fetch the latest versions of all strings from
-    a language pack.
-    The method doesn't need to be called explicitly for the current used/base language packs.
-  - The method `deleteLanguagePack` now also removes the language pack from the list of installed language packs.
-* Added the method `getChatNotificationSettingsExceptions` which can be used to get chats with
-  non-default notification settings.
-* Added the parameter `hide_via_bot` to `sendInlineQueryResultMessage` which can be used for
-  `getOption("animation_search_bot_username")`, `getOption("photo_search_bot_username")` and
-  `getOption("venue_search_bot_username")` bots to hide that the message was sent via the bot.
-* Added the class `chatReportReasonChildAbuse` which can be used to report a chat for child abuse.
-* Added the method `getMessageLocally` which returns a message only if it is available locally without
-  a network request.
-* Added the method `writeGeneratedFilePart` which can be used to write a generated file if there is no direct access to
-  TDLib's file system.
-* Added the method `readFilePart` which can be used to read a file from the TDLib file cache.
-* Added the class `filePart` to represent the result of the new `readFilePart` method.
-* Added the field `log_size` to the `storageStatisticsFast` class which contains the size of the TDLib internal log.
-  Previously the size was included into the value of the `database_size` field.
-* Added the field `language_pack_database_size` to the `storageStatisticsFast` class which contains the size of the
-  language pack database.
-* Added the field `is_support` to the class `user` which can be used to identify Telegram Support accounts.
-* Added the class `HttpUrl` encapsulating an HTTP URL.
-* Added the method `getMessageLink` which can be used to create a private link (which works only for members) to
-  a message in a supergroup or channel.
-* Added support for channel statistics (coming soon):
-  - Added the field `can_view_statistics` to the `supergroupFullInfo` class.
-  - Added the method `getChatStatisticsUrl` which returns a URL with the chat statistics.
-* Added support for server-side peer-to-peer calls privacy:
-  - Added the class `userPrivacySettingAllowPeerToPeerCalls` for managing privacy.
-  - Added the field `allow_p2p` to `callStateReady` class which must be used to determine whether
-    a peer-to-peer connection can be used.
-* Added the option `ignore_background_updates` which allows to skip all updates received while the TDLib instance was
-  not running. The option does nothing if the database or secret chats are used.
-* Added the read-only option `expect_blocking`, suggesting whether Telegram is blocked for the user.
-* Added the read-only option `enabled_proxy_id`, containing the ID of the enabled proxy.
-* Added the ability to identify password pending sessions (where the code was entered but not
-  the two-step verification password) via the flag `is_password_pending` in the `session` class.
-  TDLib guarantees that the sessions will be returned by the `getActiveSessions` method in the correct order.
-* Added the classes `JsonValue` and `jsonObjectMember` which represent a JSON value and
-  a member of a JSON object respectively as TDLib API objects.
-* Added the synchronous methods `getJsonValue` and `getJsonString` for simple conversion between
-  a JSON-encoded string and `JsonValue` TDLib API class.
-* Added the methods `getApplicationConfig` and `saveApplicationLogEvent` to be used for testing purposes.
-* Added the temporarily class `databaseStatistics` and the method `getDatabaseStatistics` for rough estimations of
-  database tables size in a human-readable format.
-* Made the method `Client.Execute` static in .NET interface.
-* Removed the `on_closed` callback virtual method from low-level C++ ClientActor interface.
-  Callback destructor can be used instead.
-* Updated dependencies in the prebuilt TDLib for Android:
-  - Updated SDK to SDK 28 in which helper classes were moved from `android.support.` to `androidx.` package.
-  - Updated NDK to r19c, which dropped support for Android versions up to 4.0.4, so the minimum supported version is
-    Android 4.1.
-  - Updated OpenSSL to version 1.1.1.
-  - Added x86_64 libraries.
-* Added out of the box `FreeBSD` support.
-* Significantly improved TDLib compilation time and decreased compiler RAM usage:
-  - In native C++ interface `td_api::object_ptr` is now a simple homebrew const-propagating class instead of
-    `std::unique_ptr`.
-  - Added the script `SplitSource.php`, which can be used to split some source code files before building
-    the library to reduce maximum RAM usage per file at the expense of increased build time.
-* The update `updateOption` with the `version` option is now guaranteed to come before all other updates.
-  It can now be used to dynamically discover available methods.
-* Added the ability to delete incoming messages in private chats and revoke messages without a time limit:
-  - Added the parameter `revoke` to the method `deleteChatHistory`; use it to delete chat history for all chat members.
-  - Added the fields `can_be_deleted_only_for_self` and `can_be_deleted_for_all_users` to the class `chat`
-    which can be used to determine for whom the chat can be deleted through the `deleteChatHistory` method.
-  - The fields `Message.can_be_deleted_only_for_self` and `Message.can_be_deleted_for_all_users` can still be used
-    to determine for whom the message can be deleted through the `deleteMessages` method.
-* Added support for server-generated notifications about newly registered contacts:
-  - Setting the option `disable_contact_registered_notifications` now affects all user sessions.
-    When the option is enabled, the client will still receive `messageContactRegistered` message in the private chat,
-    but there will be no notification about the message.
-  - `getOption("disable_contact_registered_notifications")` can be used to fetch the actual value of the option,
-    the option will not be updated automatically after a change from another device.
-* Decreased the maximum allowed first name and last name length to 64, chat title length to 128,
-  matching the new server-side limits.
-* Decreased the maximum allowed value of the `forward_limit` parameter of the `addChatMember` method from 300 to 100,
-  matching the new server-side limit.
-* Added protection from opening two TDLib instances with the same database directory from one process.
-* Added copying of notification settings of new secret chats from notification settings of
-  the corresponding private chat.
-* Excluded the sponsored chat (when using sponsored proxies) from unread counters.
-* Allowed to pass decreased local_size in `setFileGenerationProgress` to restart the generation from the beginning.
-* Added a check for modification time of original file in `inputFileGenerated` whenever possible.
-  If the original file was changed, then TDLib will restart the generation.
-* Added the destruction of MTProto keys on the server during log out.
-* Added support for hexadecimal-encoded and decimal-encoded IPv4 proxy server addresses.
-* Improved the behavior of `changeImportedContacts` which now also deletes contacts of users without Telegram accounts
-  from the server.
-* Added the ability to call `getStorageStatistics` before authorization.
-* Allowed to pass `limit` = -`offset` for negative offset in the `getChatHistory` method.
-* Changed the recommended `inputThumbnail` size to be at most 320x320 instead of the previous 90x90.
-* Disabled building by default of the native C interface. Use `cmake --build . --target tdc` to build it.
-* Numerous optimizations and bug fixes:
-  - Network implementation for Windows was completely rewritten to allow a literally unlimited number of
-    simultaneously used TDLib instances.
-  - TDLib instances can now share working threads with each other. Only a limited number of threads will be created
-    even if there are thousands of TDLib instances in a single process.
-  - Removed the restriction on the size of update or response result in JSON interface.
-  - Fixed pinning of the 5th chat when there is a sponsored chat.
-  - Fixed IPv6 on Windows.
-  - Improved network connections balancing, aliveness checks and overall stability.
-  - Various autogenerated documentation fixes and improvements.
-
------------------------------------------------------------------------------------------------------------------------
-
-Changes in 1.3.0 (5 Sep 2018):
-
-* Added a review of existing TDLib based [frameworks](https://github.com/tdlib/td/blob/master/example/README.md)
-  in different programming languages.
-* Added a [Getting started](https://core.telegram.org/tdlib/getting-started) guide describing the main TDLib concepts
-  and basic principles required for library usage.
-* When a chat is opened, only those messages that have been viewed are marked as read.
-* Improved the proxy settings API:
-  - A list of proxies is stored instead of just one proxy.
-  - New methods `addProxy`, `editProxy`, `enableProxy`, `disableProxy`, `removeProxy` and `getProxies` were added
-    instead of `setProxy` and `getProxy`.
-  - Added the method `pingProxy` which can be used to compute time needed to receive a response from a Telegram server
-    through a proxy or directly.
-  - Added support for MTProto proxy via class `proxyTypeMtproto`.
-  - Added support for HTTP proxy via class `proxyTypeHttp`.
-  - For each proxy last time it was used is remembered.
-  - Added the method `getProxyLink` which returns an HTTPS link that can be used to share a proxy with others.
-* Improved the notification settings API. Scope notification settings are now properly synchronized between all devices
-  and chat notification settings can be reset to their default values:
-  - The `notificationSettings` class was split into `chatNotificationSettings` and `scopeNotificationSettings`.
-  - Only two notification settings scopes are left: `notificationSettingsScopePrivateChats` which is responsible for
-    default notification settings for private and secret chats and `notificationSettingsScopeGroupChats` for all other
-    chats.
-  - `updateNotificationSettings` was split into `updateChatNotificationSettings` and `updateScopeNotificationSettings`.
-  - `setNotificationSettings` was split into `setChatNotificationSettings` and `setScopeNotificationSettings`.
-  - `getNotificationSettings` was replaced with `getScopeNotificationSettings`.
-* Added the field `filter` to the `searchChatMembers` method to support searching among administrators, bots,
-  restricted and banned members.
-* Added the ability to use synchronous requests and `setAlarm` before the library is initialized.
-* Added the ability to send requests that don't need authentication before the library is initialized. These requests
-  will be postponed and executed at the earliest opportunity. For example, `setNetworkType` can be used to disable the
-  network for TDLib before the library tries to use it; `addProxy` can be used to add a proxy before any network
-  activity; or `setOption("use_pfs")` can be used to guarantee that PFS is used for all requests.
-* Added support for tg:// links in `inlineKeyboardButtonTypeUrl` and `textEntityTypeTextUrl`.
-* Added the ability to call `deleteAccount` in the `authorizationStateWaitPassword` authorization state.
-* Added the ability to call `checkAuthenticationCode` with an empty `first_name` for unregistered users to check the
-  code validity.
-* Added the methods `editMessageMedia` and `editInlineMessageMedia` for editing media messages content.
-* Renamed the class `shippingAddress` to `address`.
-* Changed the return value of the `requestPasswordRecovery` method from `passwordRecoveryInfo` to
-  `emailAddressAuthenticationCodeInfo`.
-* Added support for sponsored channels promoted by MTProto-proxies:
-  - Added the field `is_sponsored` to the `chat` class.
-  - Added `updateChatIsSponsored`, sent when this field changes.
-* Added support for marking chats as unread:
-  - Added the field `is_marked_as_unread` to `chat`.
-  - Added the update `updateChatIsMarkedAsUnread`.
-  - Added the method `toggleChatIsMarkedAsUnread`.
-* Added support for a default value of `disable_notification`, used when a message is sent to the chat:
-  - Added the field `default_disable_notification` to `chat` class.
-  - Added the update `updateChatDefaultDisableNotification`.
-  - Added the method `toggleChatDefaultDisableNotification`.
-* Added the field `vcard` to the `contact` class.
-* Added the field `type` to `venue`, which contains a provider-specific type of the venue,
-* Added the update `updateUnreadChatCount`, enabled when the message database is used and sent when
-  the number of unread chats has changed.
-* Added the method `addLocalMessage` for adding a local message to a chat.
-* Added the method `getDeepLinkInfo`, which can return information about `tg://` links that are not supported by
-  the client.
-* Added support for language packs:
-  - Added the writable option `language_pack_database_path` which can be used to specify a path to a database
-    for storing language pack strings, so that this database can be shared between different accounts.
-    If not specified, language pack strings will be stored only in memory.
-    Changes to the option are applied only on the next TDLib launch.
-  - Added the writable option `localization_target` for setting up a name for the current localization target
-    (currently supported: "android", "android_x", "ios", "macos" and "tdesktop").
-  - Added the writable option `language_pack_id` for setting up an identifier of the currently used language pack from
-    the current localization target (a "language pack" represents the collection of strings that can be used to display
-    the interface of a particular application in a particular language).
-  - Added the class `LanguagePackStringValue` describing the possible values of a string from a language pack.
-  - Added the class `languagePackString` describing a string from a language pack.
-  - Added the class `languagePackStrings` containing a list of language pack strings.
-  - Added the class `languagePackInfo` containing information about a language pack from a localization target.
-  - Added the class `localizationTargetInfo` containing information about a localization target.
-  - Added the update `updateLanguagePackStrings` which is sent when some strings in a language pack have changed.
-  - Added the synchronous method `getLanguagePackString` which can be used to get a language pack string from
-    the local database.
-  - Added the method `getLocalizationTargetInfo` which returns information about the current localization target.
-  - Added the method `getLanguagePackStrings` which returns some or all strings from a language pack, possibly fetching
-    them from the server.
-  - Added the method `setCustomLanguagePack` for adding or editing a custom language pack.
-  - Added the method `editCustomLanguagePackInfo` for editing information about a custom language pack.
-  - Added the method `setCustomLanguagePackString` for adding, editing or deleting a string in a custom language pack.
-  - Added the method `deleteLanguagePack` for deleting a language pack from the database.
-  - Added the read-only option `suggested_language_pack_id` containing the identifier of the language pack,
-    suggested for the user by the server.
-* Added support for Telegram Passport:
-  - Added two new message contents `messagePassportDataSent` for ordinary users and `messagePassportDataReceived`
-    for bots containing information about Telegram Passport data shared with a bot.
-  - Added the new file type `fileTypeSecure`.
-  - Added the class `datedFile` containing information about a file along with the date it was uploaded.
-  - Added the helper classes `date`, `personalDetails`, `identityDocument`, `inputIdentityDocument`,
-    `personalDocument`, `inputPersonalDocument`, `passportElements`.
-  - Added the class `PassportElementType` describing all supported types of Telegram Passport elements.
-  - Added the class `PassportElement` containing information about a Telegram Passport element.
-  - Added the class `InputPassportElement` containing information about a Telegram Passport element to save.
-  - Added the classes `passportElementError` and `PassportElementErrorSource` describing an error in
-    a Telegram Passport element.
-  - Added the field `has_passport_data` to the `passwordState` class.
-  - Added the methods `getPassportElement`, `getAllPassportElements`, `setPassportElement`, `deletePassportElement`
-    for managing Telegram Passport elements.
-  - Added the methods `getPassportAuthorizationForm` and `sendPassportAuthorizationForm` used for sharing
-    Telegram Passport data with a service via a bot.
-  - Added the methods `sendPhoneNumberVerificationCode`, `resendPhoneNumberVerificationCode` and
-    `checkPhoneNumberVerificationCode` for verification of a phone number used for Telegram Passport.
-  - Added the methods `sendEmailAddressVerificationCode`, `resendEmailAddressVerificationCode` and
-    `checkEmailAddressVerificationCode` for verification of an email address used for Telegram Passport.
-  - Added the method `getPreferredCountryLanguage` returning a most popular language in a country.
-  - Added the classes `inputPassportElementError` and `InputPassportElementErrorSource` for bots describing an error in
-    a Telegram Passport element.
-  - Added the method `setPassportElementErrors` for bots.
-  - Added the class `encryptedPassportElement` and `encryptedCredentials` for bots describing
-    an encrypted Telegram Passport element.
-* Improved support for Telegram terms of service:
-  - Added the class `termsOfService`, containing information about the Telegram terms of service.
-  - Added the field `terms_of_service` to `authorizationStateWaitCode`.
-  - Added the update `updateTermsOfService` coming when new terms of service need to be accepted by the user.
-  - Added the method `acceptTermsOfService` for accepting terms of service.
-  - Removed the method `getTermsOfService`.
-* Added the method `getMapThumbnailFile` which can be used to register and download a map thumbnail file.
-* Added the methods `sendPhoneNumberConfirmationCode`, `resendPhoneNumberConfirmationCode` and
-  `checkPhoneNumberConfirmationCode` which can be used to prevent an account from being deleted.
-* Added the convenience methods `joinChat` and `leaveChat` which can be used instead of `setChatMemberStatus` to manage
-  the current user's membership in a chat.
-* Added the convenience method `getContacts` which can be used instead of `searchContacts` to get all contacts.
-* Added the synchronous method `cleanFileName` which removes potentially dangerous characters from a file name.
-* Added the method `getChatMessageCount` which can be used to get the number of shared media.
-* Added the writable option `ignore_inline_thumbnails` which can be used to prevent file thumbnails sent
-  by the server along with messages from being saved on the disk.
-* Added the writable option `prefer_ipv6` which can be used to prefer IPv6 connections over IPv4.
-* Added the writable option `disable_top_chats` which can be used to disable support for top chats.
-* Added the class `chatReportReasonCopyright` for reporting chats containing infringing content.
-* Added the method `clearAllDraftMessages` which can be used to delete all cloud drafts.
-* Added the read-only options `message_text_length_max` and `message_caption_length_max`.
-* Added the read-only options `animation_search_bot_username`, `photo_search_bot_username` and
-  `venue_search_bot_username` containing usernames of bots which can be used in inline mode for animations, photos and
-  venues search respectively.
-* Numerous optimizations and bug fixes:
-  - Fixed string encoding for .NET binding.
-  - Fixed building TDLib SDK for Universal Windows Platform for ARM with MSVC 2017.
-  - Fixed the Swift example project.
-  - Fixed the syntax error in the Python example.
-  - Sticker thumbnails can now have `webp` extensions if they are more likely to be in WEBP format.
-
------------------------------------------------------------------------------------------------------------------------
-
-Changes in 1.2.0 (20 Mar 2018):
-
-* Added support for native .NET bindings through `C++/CLI` and `C++/CX`.
-  See [using in .NET projects](README.md#using-dotnet) for more details.
-* Added a C# example. See [README](example/csharp/README.md) for build and usage instructions.
-* Added a build and usage example of TDLib SDK for Universal Windows Platform. See [README](example/uwp/README.md)
-  for detailed build and usage instructions. Also, see [Unigram](https://github.com/UnigramDev/Unigram), which is
-  a full-featured client rewritten from scratch using TDLib SDK for Universal Windows Platform in less than 2 months.
-* Added a Swift example. See [README](example/swift/README.md) for build and usage instructions.
-* Added an example of building TDLib for iOS, watchOS, tvOS, and also macOS. See [README](example/ios/README.md) for
-  detailed build instructions.
-* Added README to [C++](example/cpp/README.md) and [python](example/python/README.md) examples.
-* Link Time Optimization is disabled by default. Use `-DTD_ENABLE_LTO=ON` CMake option and CMake >= 3.9 to enable it.
-* `updateNotificationSettings` is now automatically sent when the mute time expires for a chat.
-* Added automatic sending of a corresponding `chatAction` when a file is being uploaded.
-* `updateUserChatAction` with `chatActionCancel` is now automatically sent when the timeout expires for an action.
-* Authorization states `authorizationStateWaitCode` and `authorizationStateWaitPassword` are now saved between
-  library restarts for 5 minutes.
-* Added new message content type `messageWebsiteConnected`.
-* Added new text entity types `textEntityTypeCashtag` and `textEntityTypePhoneNumber`.
-* Added new update `updateUnreadMessageCount`, enabled when message database is used.
-* Method `joinChatByInviteLink` now returns the joined `chat`.
-* Method `getWebPagePreview` now accepts `formattedText` instead of plain `string`.
-* Added field `phone_number` to `authenticationCodeInfo`, which contains a phone number that is being authenticated.
-* Added field `is_secret` to `messageAnimation`, `messagePhoto`, `messageVideo` and `messageVideoNote` classes,
-  which denotes whether the thumbnail for the content must be blurred and the content must be shown only while tapped.
-* Added field `expires_in` to `messageLocation` for live locations.
-* Added flag `can_be_reported` to `chat` class.
-* Added flag `supports_streaming` to classes `video` and `inputMessageVideo`.
-* Added parameter `message_ids` to `reportChat`, which can be used to report specific messages.
-* Added method `checkChatUsername` for checking whether a username can be set for a chat.
-* Added method `getRepliedMessage`, which returns a message that is replied by a given message.
-* Added method `getChatPinnedMessage`, which returns the pinned message from a chat.
-* Added method `searchStickers` to search by emoji for popular stickers suggested by the server.
-* Added method `searchStickerSets` to search by title and name for popular sticker sets suggested by the server.
-* Added method `searchInstalledStickerSets` to search by title and name for installed sticker sets.
-* Added methods for handling connected websites: `getConnectedWebsites`, `disconnectWebsite` and
-  `disconnectAllWebsites`.
-* Added method `getCountryCode`, which uses current user IP address to identify their country.
-* Added option `t_me_url`.
-* Fixed `BlackBerry` spelling in `deviceTokenBlackBerryPush`.
-* Fixed return type of `getChatMessageByDate` method, which is `Message` and not `Messages`.
-* Ensured that updateOption("my_id") comes before `updateAuthorizationState` with `authorizationStateReady`.
-* Numerous optimizations and bug fixes.
-
------------------------------------------------------------------------------------------------------------------------
-
-Changes in 1.1.1 (4 Feb 2018):
-* Fixed C JSON bindings compilation error.
-* Fixed locale-dependent JSON generation.
-
------------------------------------------------------------------------------------------------------------------------
-
-Changes in 1.1.0 (31 Jan 2018):
-
-* Methods `td::Log::set_file_path` and `td_set_log_file_path` now return whether they succeeded.
-* Added methods `td::Log::set_max_file_size` and `td_set_log_max_file_size` for restricting maximum TDLib log size.
-* Added methods `td::Log::set_fatal_error_callback` and `td_set_log_fatal_error_callback` for providing callbacks
-  on fatal errors.
-* JNI-bindings are now package-agnostic. Use CMake option `TD_ENABLE_JNI` to enable JNI-bindings.
-* Added a Java example. See [README](example/java/README.md) for build and usage instructions.
-* Added support for text entities in media captions.
-  - Added new type `formattedText` containing a text with entities.
-  - Replaced all string fields `caption` with fields of type `formattedText`.
-  - Replaced fields `text` and `entities` with the field `text` of type `formattedText` in class `messageText`.
-  - Replaced fields `text` and `entities` with the field `text` of type `formattedText` in class `inputMessageText`.
-  - Replaced fields `text` and `text_entities` with the field `text` of type `formattedText` in class `game`.
-  - Removed field `parse_mode` from class `inputMessageText`.
-  - Added synchronous method `parseTextEntities`.
-* updateNewMessage is now sent for all sent messages.
-* updateChatLastMessage is now sent when any field of the last message in a chat changes.
-* Reworked the `registerDevice` method:
-  - Added parameter `other_user_ids` to method `registerDevice` to support multiple accounts.
-  - It is now possible to specify tokens for VoIP pushes, WNS, web Push API, Tizen Push Service as `DeviceToken`.
-  - Added support for Apple Push Notification Service inside App Sandbox.
-* Added method `searchChatsOnServer` analogous to `searchChats`, but using server search.
-* Results from the `searchChatsOnServer` method are now excluded from `searchPublicChats` results,
-  so `searchChatsOnServer` (along with `searchContacts`) should be called whenever `searchPublicChats` is called
-  to ensure that no results were omitted.
-* Added parameter `as_album` to method `getPublicMessageLink` to enable getting public links for media albums.
-* Added field `html` to class `publicMessageLink`, containing HTML-code for message/message album embedding.
-* Added parameter `only_if_pending` to method `cancelDownloadFile` to allow keeping already started downloads.
-* Methods `createPrivateChat`, `createBasicGroupChat`, `createSupergroupChat` and `createSecretChat`
-  can now be called without a prior call to `getUser`/`getBasicGroup`/`getSupergroup`/`getSecretChat`.
-* Added parameter `force` to methods `createPrivateChat`, `createBasicGroupChat` and `createSupergroupChat` to allow
-  creating a chat without network requests.
-* Numerous optimizations and bug fixes.
-
------------------------------------------------------------------------------------------------------------------------
diff --git a/third-party/td/td/CMake/AddCXXCompilerFlag.cmake b/third-party/td/td/CMake/AddCXXCompilerFlag.cmake
deleted file mode 100644
index 6fb615a1f7..0000000000
--- a/third-party/td/td/CMake/AddCXXCompilerFlag.cmake
+++ /dev/null
@@ -1,74 +0,0 @@
-# - Adds a compiler flag if it is supported by the compiler
-#
-# This function checks that the supplied compiler flag is supported and then
-# adds it to the corresponding compiler flags
-#
-#  add_cxx_compiler_flag(<FLAG> [<VARIANT>])
-#
-# - Example
-#
-# include(AddCXXCompilerFlag)
-# add_cxx_compiler_flag(-Wall)
-# add_cxx_compiler_flag(-no-strict-aliasing RELEASE)
-# Requires CMake 2.6+
-
-if (__add_cxx_compiler_flag)
-  return()
-endif()
-set(__add_cxx_compiler_flag INCLUDED)
-
-include(CheckCXXCompilerFlag)
-
-function(mangle_compiler_flag FLAG OUTPUT)
-  string(TOUPPER "HAVE_CXX_FLAG_${FLAG}" SANITIZED_FLAG)
-  string(REPLACE "+" "X" SANITIZED_FLAG ${SANITIZED_FLAG})
-  string(REGEX REPLACE "[^A-Za-z_0-9]" "_" SANITIZED_FLAG ${SANITIZED_FLAG})
-  string(REGEX REPLACE "_+" "_" SANITIZED_FLAG ${SANITIZED_FLAG})
-  set(${OUTPUT} "${SANITIZED_FLAG}" PARENT_SCOPE)
-endfunction(mangle_compiler_flag)
-
-function(add_cxx_compiler_flag FLAG)
-  string(REPLACE "-Wno-" "-W" MAIN_FLAG ${FLAG})
-  mangle_compiler_flag("${MAIN_FLAG}" MANGLED_FLAG_NAME)
-  if (DEFINED CMAKE_REQUIRED_FLAGS)
-    set(OLD_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
-    set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${FLAG}")
-  else()
-    set(CMAKE_REQUIRED_FLAGS "${FLAG}")
-  endif()
-  check_cxx_compiler_flag("${MAIN_FLAG}" ${MANGLED_FLAG_NAME})
-  if (DEFINED OLD_CMAKE_REQUIRED_FLAGS)
-    set(CMAKE_REQUIRED_FLAGS "${OLD_CMAKE_REQUIRED_FLAGS}")
-  else()
-    unset(CMAKE_REQUIRED_FLAGS)
-  endif()
-  if (${MANGLED_FLAG_NAME})
-    set(VARIANT ${ARGV1})
-    if (ARGV1)
-      string(TOUPPER "_${VARIANT}" VARIANT)
-    endif()
-    set(CMAKE_CXX_FLAGS${VARIANT} "${CMAKE_CXX_FLAGS${VARIANT}} ${FLAG}" PARENT_SCOPE)
-  endif()
-endfunction()
-
-function(add_required_cxx_compiler_flag FLAG)
-  string(REPLACE "-Wno-" "-W" MAIN_FLAG ${FLAG})
-  mangle_compiler_flag("${MAIN_FLAG}" MANGLED_FLAG_NAME)
-  set(OLD_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
-  set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${FLAG}")
-  check_cxx_compiler_flag("${MAIN_FLAG}" ${MANGLED_FLAG_NAME})
-  set(CMAKE_REQUIRED_FLAGS "${OLD_CMAKE_REQUIRED_FLAGS}")
-  if (${MANGLED_FLAG_NAME})
-    set(VARIANT ${ARGV1})
-    if (ARGV1)
-      string(TOUPPER "_${VARIANT}" VARIANT)
-    endif()
-    set(CMAKE_CXX_FLAGS${VARIANT} "${CMAKE_CXX_FLAGS${VARIANT}} ${FLAG}" PARENT_SCOPE)
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${FLAG}" PARENT_SCOPE)
-    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${FLAG}" PARENT_SCOPE)
-    set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} ${FLAG}" PARENT_SCOPE)
-    set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${FLAG}" PARENT_SCOPE)
-  else()
-    message(FATAL_ERROR "Required flag '${FLAG}' is not supported by the compiler")
-  endif()
-endfunction()
diff --git a/third-party/td/td/CMake/FindAtomics.cmake b/third-party/td/td/CMake/FindAtomics.cmake
deleted file mode 100644
index a855132581..0000000000
--- a/third-party/td/td/CMake/FindAtomics.cmake
+++ /dev/null
@@ -1,62 +0,0 @@
-# Original issue:
-# * https://gitlab.kitware.com/cmake/cmake/-/issues/23021#note_1098733
-#
-# For reference:
-# * https://gcc.gnu.org/wiki/Atomic/GCCMM
-#
-# riscv64 specific:
-# * https://lists.debian.org/debian-riscv/2022/01/msg00009.html
-#
-# ATOMICS_FOUND         - system has C++ atomics
-# ATOMICS_LIBRARIES     - libraries needed to use C++ atomics
-
-if (ATOMICS_FOUND)
-  return()
-endif()
-
-include(CheckCXXSourceCompiles)
-
-# RISC-V only has 32-bit and 64-bit atomic instructions. GCC is supposed
-# to convert smaller atomics to those larger ones via masking and
-# shifting like LLVM, but it's a known bug that it does not. This means
-# anything that wants to use atomics on 1-byte or 2-byte types needs
-# to link atomic library, but not 4-byte or 8-byte (though it does no harm).
-set(ATOMIC_CODE
-    "
-    #include <atomic>
-    #include <cstdint>
-    std::atomic<std::uint8_t> n8{0}; // riscv64
-    std::atomic<std::uint64_t> n64{0}; // armel, mipsel, powerpc
-    int main() {
-      ++n8;
-      ++n64;
-    }")
-
-set(ATOMICS_LIBS " " "-latomic")
-if (CMAKE_SYSTEM_NAME MATCHES "NetBSD")
-  set(ATOMICS_LIBS "${ATOMICS_LIBS}" /usr/pkg/gcc12/x86_64--netbsd/lib/libatomic.so /usr/pkg/gcc12/i486--netbsdelf/lib/libatomic.so)
-endif()
-
-foreach (ATOMICS_LIBRARY ${ATOMICS_LIBS})
-  unset(ATOMICS_FOUND CACHE)
-  set(CMAKE_REQUIRED_LIBRARIES "${ATOMICS_LIBRARY}")
-  check_cxx_source_compiles("${ATOMIC_CODE}" ATOMICS_FOUND)
-  unset(CMAKE_REQUIRED_LIBRARIES)
-  if (ATOMICS_FOUND)
-    if (NOT ATOMICS_LIBRARY STREQUAL " ")
-      include(FindPackageHandleStandardArgs)
-      find_package_handle_standard_args(Atomics DEFAULT_MSG ATOMICS_LIBRARY)
-      set(ATOMICS_LIBRARIES "${ATOMICS_LIBRARY}" CACHE STRING "Atomic library" FORCE)
-    else()
-      set(ATOMICS_LIBRARIES "" CACHE STRING "Atomic operations library" FORCE)
-    endif()
-    break()
-  endif()
-endforeach()
-if (Atomics_FIND_REQUIRED AND NOT ATOMICS_FOUND)
-  message(FATAL_ERROR "Atomic operations library isn't found.")
-endif()
-
-unset(ATOMICS_LIBRARY)
-unset(ATOMICS_LIBS)
-unset(ATOMIC_CODE)
diff --git a/third-party/td/td/CMake/FindReadline.cmake b/third-party/td/td/CMake/FindReadline.cmake
deleted file mode 100644
index 94b92ef558..0000000000
--- a/third-party/td/td/CMake/FindReadline.cmake
+++ /dev/null
@@ -1,25 +0,0 @@
-if (APPLE)
-  find_path(READLINE_INCLUDE_DIR readline/readline.h /opt/homebrew/opt/readline/include /usr/local/opt/readline/include /opt/local/include /opt/include /usr/local/include /usr/include NO_DEFAULT_PATH)
-endif()
-find_path(READLINE_INCLUDE_DIR readline/readline.h)
-
-if (APPLE)
-  find_library(READLINE_LIBRARY readline /opt/homebrew/opt/readline/lib /usr/local/opt/readline/lib /opt/local/lib /opt/lib /usr/local/lib /usr/lib NO_DEFAULT_PATH)
-endif()
-find_library(READLINE_LIBRARY readline)
-
-if (READLINE_INCLUDE_DIR AND READLINE_LIBRARY AND NOT GNU_READLINE_FOUND)
-  set(CMAKE_REQUIRED_INCLUDES "${READLINE_INCLUDE_DIR}")
-  set(CMAKE_REQUIRED_LIBRARIES "${READLINE_LIBRARY}")
-  include(CheckCXXSourceCompiles)
-  unset(GNU_READLINE_FOUND CACHE)
-  check_cxx_source_compiles("#include <stdio.h>\n#include <readline/readline.h>\nint main() { rl_replace_line(\"\", 0); }" GNU_READLINE_FOUND)
-  if (NOT GNU_READLINE_FOUND)
-    unset(READLINE_INCLUDE_DIR CACHE)
-    unset(READLINE_LIBRARY CACHE)
-  endif()
-endif()
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Readline DEFAULT_MSG READLINE_INCLUDE_DIR READLINE_LIBRARY)
-mark_as_advanced(READLINE_INCLUDE_DIR READLINE_LIBRARY)
diff --git a/third-party/td/td/CMake/GeneratePkgConfig.cmake b/third-party/td/td/CMake/GeneratePkgConfig.cmake
deleted file mode 100644
index 3d3fa01d1f..0000000000
--- a/third-party/td/td/CMake/GeneratePkgConfig.cmake
+++ /dev/null
@@ -1,99 +0,0 @@
-function(get_relative_link OUTPUT PATH)
-  if (PATH MATCHES "^[$]<[$]<CONFIG:DEBUG>:")
-    set(${OUTPUT} "" PARENT_SCOPE)
-    return()
-  endif()
-  string(REGEX REPLACE "^[$]<[$]<NOT:[$]<CONFIG:DEBUG>>:(.*)>$" "\\1" PATH "${PATH}")
-
-  get_filename_component(NAME "${PATH}" NAME_WE)
-  if (IS_ABSOLUTE ${PATH})
-    get_filename_component(DIRECTORY_NAME "${PATH}" DIRECTORY)
-    if (WIN32)
-      set(${OUTPUT} "-l\"${DIRECTORY_NAME}/${NAME}\"" PARENT_SCOPE)
-    else()
-      get_filename_component(FULL_NAME "${PATH}" NAME)
-      set(${OUTPUT} "-L\"${DIRECTORY_NAME}\" -l:${FULL_NAME}" PARENT_SCOPE)
-    endif()
-    return()
-  endif()
-
-  if (NOT WIN32 AND NAME MATCHES "^lib")
-    string(REGEX REPLACE "^lib" "-l" LINK "${NAME}")
-  elseif (NAME MATCHES "^-")
-    set(LINK "${NAME}")
-  else()
-    string(CONCAT LINK "-l" "${NAME}")
-  endif()
-  set(${OUTPUT} "${LINK}" PARENT_SCOPE)
-endfunction()
-
-function(generate_pkgconfig TARGET DESCRIPTION)
-  # message("Generating pkg-config for ${TARGET}")
-  get_filename_component(PREFIX "${CMAKE_INSTALL_PREFIX}" REALPATH)
-
-  get_target_property(LIST "${TARGET}" LINK_LIBRARIES)
-  set(REQS "")
-  set(LIBS "")
-  foreach (LIB ${LIST})
-    if (TARGET "${LIB}")
-      set(HAS_REQS 1)
-      list(APPEND REQS "${LIB}")
-    else()
-      set(HAS_LIBS 1)
-      get_relative_link(LINK "${LIB}")
-      if (NOT LINK EQUAL "")
-        list(APPEND LIBS "${LINK}")
-      endif()
-    endif()
-  endforeach()
-
-  if (HAS_REQS)
-    set(REQUIRES "")
-    foreach (REQ ${REQS})
-      set(REQUIRES "${REQUIRES} ${REQ}")
-    endforeach()
-    set(REQUIRES "Requires.private:${REQUIRES}\n")
-  endif()
-  if (HAS_LIBS)
-    set(LIBRARIES "")
-    list(REVERSE LIBS)
-    list(REMOVE_DUPLICATES LIBS)
-    foreach (LIB ${LIBS})
-      set(LIBRARIES " ${LIB}${LIBRARIES}")
-    endforeach()
-    set(LIBRARIES "Libs.private:${LIBRARIES}\n")
-  endif()
-
-  if (IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
-    set(PKGCONFIG_INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}")
-  else()
-    set(PKGCONFIG_INCLUDEDIR "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
-  endif()
-
-  if (IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
-    set(PKGCONFIG_LIBDIR "${CMAKE_INSTALL_LIBDIR}")
-  else()
-    set(PKGCONFIG_LIBDIR "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
-  endif()
-
-  file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/pkgconfig")
-  file(GENERATE OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/pkgconfig/${TARGET}.pc" CONTENT
-"prefix=${PREFIX}
-
-Name: ${TARGET}
-Description: ${DESCRIPTION}
-Version: ${PROJECT_VERSION}
-
-CFlags: -I\"${PKGCONFIG_INCLUDEDIR}\"
-Libs: -L\"${PKGCONFIG_LIBDIR}\" -l${TARGET}
-${REQUIRES}${LIBRARIES}")
-
-  get_target_property(LIBRARY_TYPE "${TARGET}" TYPE)
-  if (LIBRARY_TYPE STREQUAL "STATIC_LIBRARY" OR LIBRARY_TYPE STREQUAL "SHARED_LIBRARY")
-    install(FILES "${CMAKE_CURRENT_BINARY_DIR}/pkgconfig/${TARGET}.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
-  elseif (LIBRARY_TYPE STREQUAL "INTERFACE_LIBRARY")
-    # TODO: support interface libraries
-  else()
-    message(FATAL_ERROR "Don't know how to handle ${TARGET} of type ${LIBRARY_TYPE}")
-  endif()
-endfunction()
diff --git a/third-party/td/td/CMake/GetGitRevisionDescription.cmake b/third-party/td/td/CMake/GetGitRevisionDescription.cmake
deleted file mode 100644
index 746c29d583..0000000000
--- a/third-party/td/td/CMake/GetGitRevisionDescription.cmake
+++ /dev/null
@@ -1,127 +0,0 @@
-# - Returns a version string from Git
-#
-# These functions force a re-configure on each git commit so that you can
-# trust the values of the variables in your build system.
-#
-#  get_git_head_revision(<refspecvar> <hashvar>)
-#
-# Requires CMake 2.6 or newer (uses the 'function' command)
-#
-# Original Author:
-# 2009-2020 Ryan Pavlik <ryan.pavlik@gmail.com> <abiryan@ryand.net>
-# http://academic.cleardefinition.com
-#
-# Copyright 2009-2013, Iowa State University.
-# Copyright 2013-2020, Ryan Pavlik
-# Copyright 2013-2020, Contributors
-# SPDX-License-Identifier: BSL-1.0
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at
-# http://www.boost.org/LICENSE_1_0.txt)
-
-if (__get_git_revision_description)
-  return()
-endif()
-set(__get_git_revision_description YES)
-
-# We must run the following at "include" time, not at function call time,
-# to find the path to this module rather than the path to a calling list file
-get_filename_component(_gitdescmoddir ${CMAKE_CURRENT_LIST_FILE} PATH)
-
-# Function _git_find_closest_git_dir finds the next closest .git directory
-# that is part of any directory in the path defined by _start_dir.
-# The result is returned in the parent scope variable whose name is passed
-# as variable _git_dir_var. If no .git directory can be found, the
-# function returns an empty string via _git_dir_var.
-#
-# Example: Given a path C:/bla/foo/bar and assuming C:/bla/.git exists and
-# neither foo nor bar contain a file/directory .git. This will return
-# C:/bla/.git
-#
-function(_git_find_closest_git_dir _start_dir _git_dir_var)
-  set(cur_dir "${_start_dir}")
-  set(git_dir "${_start_dir}/.git")
-  while (NOT EXISTS "${git_dir}")
-    # .git dir not found, search parent directories
-    set(git_previous_parent "${cur_dir}")
-    get_filename_component(cur_dir "${cur_dir}" DIRECTORY)
-    if (cur_dir STREQUAL git_previous_parent)
-      # We have reached the root directory, we are not in git
-      set(${_git_dir_var} "" PARENT_SCOPE)
-      return()
-    endif()
-    set(git_dir "${cur_dir}/.git")
-  endwhile()
-  set(${_git_dir_var} "${git_dir}" PARENT_SCOPE)
-endfunction()
-
-function(get_git_head_revision _refspecvar _hashvar)
-  _git_find_closest_git_dir("${CMAKE_CURRENT_SOURCE_DIR}" GIT_DIR)
-
-  if (NOT GIT_DIR STREQUAL "")
-    file(RELATIVE_PATH _relative_to_source_dir "${CMAKE_CURRENT_SOURCE_DIR}" "${GIT_DIR}")
-    if (_relative_to_source_dir MATCHES "^[.][.]")
-      # We've gone above the CMake root dir.
-      set(GIT_DIR "")
-    endif()
-  endif()
-  if (GIT_DIR STREQUAL "")
-    set(${_refspecvar} "GITDIR-NOTFOUND" PARENT_SCOPE)
-    set(${_hashvar} "GITDIR-NOTFOUND" PARENT_SCOPE)
-    return()
-  endif()
-
-  find_package(Git QUIET)
-
-  # Check if the current source dir is a git submodule or a worktree.
-  # In both cases .git is a file instead of a directory.
-  #
-  if ((NOT IS_DIRECTORY ${GIT_DIR}) AND Git_FOUND)
-    # The following git command will return a non empty string that
-    # points to the super project working tree if the current
-    # source dir is inside a git submodule.
-    # Otherwise, the command will return an empty string.
-    #
-    execute_process(
-      COMMAND "${GIT_EXECUTABLE}" rev-parse --show-superproject-working-tree
-      WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
-      OUTPUT_VARIABLE out
-      ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
-    if (NOT out STREQUAL "")
-      # If out is non-empty, GIT_DIR/CMAKE_CURRENT_SOURCE_DIR is in a submodule
-      file(READ ${GIT_DIR} submodule)
-      string(REGEX REPLACE "gitdir: (.*)$" "\\1" GIT_DIR_RELATIVE ${submodule})
-      string(STRIP ${GIT_DIR_RELATIVE} GIT_DIR_RELATIVE)
-      get_filename_component(SUBMODULE_DIR ${GIT_DIR} PATH)
-      get_filename_component(GIT_DIR ${SUBMODULE_DIR}/${GIT_DIR_RELATIVE} ABSOLUTE)
-      set(HEAD_SOURCE_FILE "${GIT_DIR}/HEAD")
-    else()
-      # GIT_DIR/CMAKE_CURRENT_SOURCE_DIR is in a worktree
-      file(READ ${GIT_DIR} worktree_ref)
-      # The .git directory contains a path to the worktree information directory
-      # inside the parent git repo of the worktree.
-      string(REGEX REPLACE "gitdir: (.*)$" "\\1" git_worktree_dir ${worktree_ref})
-      string(STRIP ${git_worktree_dir} git_worktree_dir)
-      _git_find_closest_git_dir("${git_worktree_dir}" GIT_DIR)
-      set(HEAD_SOURCE_FILE "${git_worktree_dir}/HEAD")
-    endif()
-  else()
-    set(HEAD_SOURCE_FILE "${GIT_DIR}/HEAD")
-  endif()
-  if (NOT EXISTS "${HEAD_SOURCE_FILE}")
-    return()
-  endif()
-
-  set(GIT_DATA "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/git-data")
-  if (NOT EXISTS "${GIT_DATA}")
-    file(MAKE_DIRECTORY "${GIT_DATA}")
-  endif()
-  set(HEAD_FILE "${GIT_DATA}/HEAD")
-  configure_file("${HEAD_SOURCE_FILE}" "${HEAD_FILE}" COPYONLY)
-
-  configure_file("${_gitdescmoddir}/GetGitRevisionDescription.cmake.in" "${GIT_DATA}/grabRef.cmake" @ONLY)
-  include("${GIT_DATA}/grabRef.cmake")
-
-  set(${_refspecvar} "${HEAD_REF}" PARENT_SCOPE)
-  set(${_hashvar} "${HEAD_HASH}" PARENT_SCOPE)
-endfunction()
diff --git a/third-party/td/td/CMake/GetGitRevisionDescription.cmake.in b/third-party/td/td/CMake/GetGitRevisionDescription.cmake.in
deleted file mode 100644
index bfc1e54c15..0000000000
--- a/third-party/td/td/CMake/GetGitRevisionDescription.cmake.in
+++ /dev/null
@@ -1,43 +0,0 @@
-#
-# Internal file for GetGitRevisionDescription.cmake
-#
-# Requires CMake 2.6 or newer (uses the 'function' command)
-#
-# Original Author:
-# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
-# http://academic.cleardefinition.com
-# Iowa State University HCI Graduate Program/VRAC
-#
-# Copyright 2009-2012, Iowa State University
-# Copyright 2011-2015, Contributors
-# Distributed under the Boost Software License, Version 1.0.
-# (See accompanying file LICENSE_1_0.txt or copy at
-# http://www.boost.org/LICENSE_1_0.txt)
-# SPDX-License-Identifier: BSL-1.0
-
-set(HEAD_HASH)
-
-file(READ "@HEAD_FILE@" HEAD_CONTENTS LIMIT 1024)
-
-string(STRIP "${HEAD_CONTENTS}" HEAD_CONTENTS)
-if (HEAD_CONTENTS MATCHES "ref")
-  # named branch
-  string(REPLACE "ref: " "" HEAD_REF "${HEAD_CONTENTS}")
-  if (EXISTS "@GIT_DIR@/${HEAD_REF}")
-    configure_file("@GIT_DIR@/${HEAD_REF}" "@GIT_DATA@/head-ref" COPYONLY)
-  else()
-    configure_file("@GIT_DIR@/packed-refs" "@GIT_DATA@/packed-refs" COPYONLY)
-    file(READ "@GIT_DATA@/packed-refs" PACKED_REFS)
-    if (PACKED_REFS MATCHES "([0-9a-z]*) ${HEAD_REF}")
-      set(HEAD_HASH "${CMAKE_MATCH_1}")
-    endif()
-  endif()
-else()
-  # detached HEAD
-  configure_file("@GIT_DIR@/HEAD" "@GIT_DATA@/head-ref" COPYONLY)
-endif()
-
-if (NOT HEAD_HASH)
-  file(READ "@GIT_DATA@/head-ref" HEAD_HASH LIMIT 1024)
-  string(STRIP "${HEAD_HASH}" HEAD_HASH)
-endif()
diff --git a/third-party/td/td/CMake/PreventInSourceBuild.cmake b/third-party/td/td/CMake/PreventInSourceBuild.cmake
deleted file mode 100644
index 1815e82a25..0000000000
--- a/third-party/td/td/CMake/PreventInSourceBuild.cmake
+++ /dev/null
@@ -1,14 +0,0 @@
-function(prevent_in_source_build)
-  get_filename_component(REAL_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}" REALPATH)
-  get_filename_component(REAL_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}" REALPATH)
-
-  if (REAL_BINARY_DIR STREQUAL REAL_SOURCE_DIR)
-    message("  Out-of-source build must be used. Remove the files already")
-    message("  created by CMake and rerun CMake from a new directory:")
-    message("    rm -rf CMakeFiles CMakeCache.txt")
-    message("    mkdir build")
-    message("    cd build")
-    message("    cmake ..")
-    message(FATAL_ERROR "In-source build failed.")
-  endif()
-endfunction()
diff --git a/third-party/td/td/CMake/TdSetUpCompiler.cmake b/third-party/td/td/CMake/TdSetUpCompiler.cmake
deleted file mode 100644
index a1937c2eb4..0000000000
--- a/third-party/td/td/CMake/TdSetUpCompiler.cmake
+++ /dev/null
@@ -1,185 +0,0 @@
-# Configures C++17 compiler, setting TDLib-specific compilation options.
-
-function(td_set_up_compiler)
-  set(CMAKE_EXPORT_COMPILE_COMMANDS 1 PARENT_SCOPE)
-
-  set(CMAKE_POSITION_INDEPENDENT_CODE ON PARENT_SCOPE)
-
-  include(illumos)
-
-  if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-    set(GCC 1)
-    set(GCC 1 PARENT_SCOPE)
-  elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-    set(CLANG 1)
-    set(CLANG 1 PARENT_SCOPE)
-  elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
-    set(INTEL 1)
-    set(INTEL 1 PARENT_SCOPE)
-  elseif (NOT MSVC)
-    message(FATAL_ERROR "Compiler isn't supported")
-  endif()
-
-  include(CheckCXXCompilerFlag)
-
-  if (GCC OR CLANG OR INTEL)
-    if (WIN32 AND INTEL)
-      set(STD17_FLAG /Qstd=c++17)
-    else()
-      set(STD17_FLAG -std=c++17)
-    endif()
-    if (GCC AND (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0))
-      message(FATAL_ERROR "No C++17 support in the compiler. Please upgrade the compiler to at least GCC 7.0.")
-    endif()
-    if (CLANG AND (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0))
-      message(FATAL_ERROR "No C++17 support in the compiler. Please upgrade the compiler to at least clang 5.0.")
-    endif()
-    check_cxx_compiler_flag(${STD17_FLAG} HAVE_STD17)
-  elseif (MSVC)
-    set(HAVE_STD17 MSVC_VERSION>=1914) # MSVC 2017 version 15.7
-  endif()
-
-  if (NOT HAVE_STD17)
-    message(FATAL_ERROR "No C++17 support in the compiler. Please upgrade the compiler.")
-  endif()
-
-  if (MSVC)
-    if (CMAKE_CXX_FLAGS_DEBUG MATCHES "/RTC1")
-      string(REPLACE "/RTC1" " " CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
-    endif()
-    add_definitions(-D_SCL_SECURE_NO_WARNINGS -D_CRT_SECURE_NO_WARNINGS)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++17 /utf-8 /GR- /W4 /wd4100 /wd4127 /wd4324 /wd4505 /wd4814 /wd4702 /bigobj")
-  elseif (CLANG OR GCC)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${STD17_FLAG} -fno-omit-frame-pointer -fno-exceptions -fno-rtti")
-    if (APPLE)
-      set(TD_LINKER_FLAGS "-Wl,-dead_strip")
-      if (NOT CMAKE_BUILD_TYPE MATCHES "Deb")
-        set(TD_LINKER_FLAGS "${TD_LINKER_FLAGS},-x,-S")
-      endif()
-    else()
-      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffunction-sections -fdata-sections")
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffunction-sections -fdata-sections")
-      if (CMAKE_SYSTEM_NAME STREQUAL "SunOS")
-        set(TD_LINKER_FLAGS "-Wl,-z,ignore")
-      elseif (EMSCRIPTEN)
-        set(TD_LINKER_FLAGS "-Wl,--gc-sections")
-      elseif (ANDROID)
-        set(TD_LINKER_FLAGS "-Wl,--gc-sections -Wl,--exclude-libs,ALL -Wl,--icf=safe")
-      else()
-        set(TD_LINKER_FLAGS "-Wl,--gc-sections -Wl,--exclude-libs,ALL")
-      endif()
-    endif()
-    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${TD_LINKER_FLAGS}")
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${TD_LINKER_FLAGS}")
-
-    if (WIN32 OR CYGWIN)
-      if (GCC)
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wa,-mbig-obj")
-      endif()
-    endif()
-  elseif (INTEL)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${STD17_FLAG}")
-  endif()
-
-  if (WIN32)
-    add_definitions(-DNTDDI_VERSION=0x06020000 -DWINVER=0x0602 -D_WIN32_WINNT=0x0602 -DPSAPI_VERSION=1 -DNOMINMAX -DUNICODE -D_UNICODE -DWIN32_LEAN_AND_MEAN)
-  endif()
-  if (CYGWIN)
-    add_definitions(-D_DEFAULT_SOURCE=1 -DFD_SETSIZE=4096)
-  endif()
-
-  # _FILE_OFFSET_BITS is broken in Android NDK r15, r15b and r17 and doesn't work prior to Android 7.0
-  add_definitions(-D_FILE_OFFSET_BITS=64)
-
-  # _GNU_SOURCE might not be defined by g++
-  add_definitions(-D_GNU_SOURCE)
-
-  if (CMAKE_SYSTEM_NAME STREQUAL "SunOS")
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lsocket -lnsl")
-    if (ILLUMOS)
-      add_definitions(-DTD_ILLUMOS=1)
-    endif()
-  endif()
-
-  include(AddCXXCompilerFlag)
-  if (NOT MSVC)
-    add_cxx_compiler_flag("-Wall")
-    add_cxx_compiler_flag("-Wextra")
-    add_cxx_compiler_flag("-Wimplicit-fallthrough=2")
-    add_cxx_compiler_flag("-Wpointer-arith")
-    add_cxx_compiler_flag("-Wcast-qual")
-    add_cxx_compiler_flag("-Wsign-compare")
-    add_cxx_compiler_flag("-Wduplicated-branches")
-    add_cxx_compiler_flag("-Wduplicated-cond")
-    add_cxx_compiler_flag("-Walloc-zero")
-    add_cxx_compiler_flag("-Wlogical-op")
-    add_cxx_compiler_flag("-Wno-tautological-compare")
-    add_cxx_compiler_flag("-Wpointer-arith")
-    add_cxx_compiler_flag("-Wvla")
-    add_cxx_compiler_flag("-Wnon-virtual-dtor")
-    add_cxx_compiler_flag("-Wno-unused-parameter")
-    add_cxx_compiler_flag("-Wconversion")
-    add_cxx_compiler_flag("-Wno-sign-conversion")
-    add_cxx_compiler_flag("-Wc++17-compat-pedantic")
-    add_cxx_compiler_flag("-Wdeprecated")
-    add_cxx_compiler_flag("-Wno-unused-command-line-argument")
-    add_cxx_compiler_flag("-Qunused-arguments")
-    add_cxx_compiler_flag("-Wno-unknown-warning-option")
-    add_cxx_compiler_flag("-Wodr")
-    add_cxx_compiler_flag("-flto-odr-type-merging")
-    add_cxx_compiler_flag("-Wno-psabi")
-    add_cxx_compiler_flag("-Wunused-member-function")
-    add_cxx_compiler_flag("-Wunused-private-field")
-
-  #  add_cxx_compiler_flag("-Werror")
-
-  #  add_cxx_compiler_flag("-Wcast-align")
-
-  #std::int32_t <-> int and off_t <-> std::size_t/std::int64_t
-  #  add_cxx_compiler_flag("-Wuseless-cast")
-
-  #external headers like openssl
-  #  add_cxx_compiler_flag("-Wzero-as-null-pointer-constant")
-  endif()
-
-  if (GCC)
-    add_cxx_compiler_flag("-Wno-maybe-uninitialized")  # too many false positives
-  endif()
-  if (WIN32 AND GCC AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.0))
-    # warns about casts of function pointers returned by GetProcAddress
-    add_cxx_compiler_flag("-Wno-cast-function-type")
-  endif()
-  if (GCC AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0))
-    # warns about a lot of "return std::move", which are not redundant for compilers without fix for DR 1579, i.e. GCC 4.9 or clang 3.8
-    # see http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1579
-    add_cxx_compiler_flag("-Wno-redundant-move")
-  endif()
-  if (GCC AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.0))
-    add_cxx_compiler_flag("-Wno-stringop-overflow")  # some false positives
-  endif()
-  if (CLANG AND (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.5))
-    # https://stackoverflow.com/questions/26744556/warning-returning-a-captured-reference-from-a-lambda
-    add_cxx_compiler_flag("-Wno-return-stack-address")
-  endif()
-  if (GCC AND (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 13.0))
-    # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104030
-    add_cxx_compiler_flag("-Wbidi-chars=none")
-  endif()
-
-  if (MINGW)
-    add_cxx_compiler_flag("-ftrack-macro-expansion=0")
-  endif()
-
-  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -isystem /usr/include/c++/v1")
-  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
-  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread")
-  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
-  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined")
-  #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=leak")
-
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" PARENT_SCOPE)
-  set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" PARENT_SCOPE)
-  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}" PARENT_SCOPE)
-  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}" PARENT_SCOPE)
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" PARENT_SCOPE)
-endfunction()
diff --git a/third-party/td/td/CMake/iOS.cmake b/third-party/td/td/CMake/iOS.cmake
deleted file mode 100644
index 0bdbe7505a..0000000000
--- a/third-party/td/td/CMake/iOS.cmake
+++ /dev/null
@@ -1,278 +0,0 @@
-# This file is based off of the Platform/Darwin.cmake and Platform/UnixPaths.cmake
-# files which are included with CMake 2.8.4
-# It has been altered for iOS development
-
-# Options:
-#
-# IOS_PLATFORM = OS (default) or SIMULATOR
-#   This decides if SDKS will be selected from the iPhoneOS.platform or iPhoneSimulator.platform folders
-#   OS - the default, used to build for iPhone and iPad physical devices, which have an arm arch.
-#   SIMULATOR - used to build for the Simulator platforms, which have an x86 arch.
-#
-# IOS_ARCH = automatic(default) or "arch1;arch2" (e.q. "x86_64;arm64")
-#   By default this value will be automatically chosen based on the IOS_PLATFORM value above.
-#   If set manually, it will override the default and force to build those architectures only.
-#
-# CMAKE_IOS_DEVELOPER_ROOT = automatic(default) or /path/to/platform/Developer folder
-#   By default this location is automatically chosen based on the IOS_PLATFORM value above.
-#   If set manually, it will override the default location and force the user of a particular Developer Platform
-#
-# CMAKE_IOS_SDK_ROOT = automatic(default) or /path/to/platform/Developer/SDKs/SDK folder
-#   By default this location is automatically chosen based on the CMAKE_IOS_DEVELOPER_ROOT value.
-#   In this case it will always be the most up-to-date SDK found in the CMAKE_IOS_DEVELOPER_ROOT path.
-#   If set manually, this will force the use of a specific SDK version
-
-# Macros:
-#
-# set_xcode_property (TARGET XCODE_PROPERTY XCODE_VALUE)
-#  A convenience macro for setting xcode specific properties on targets
-#  example: set_xcode_property (myioslib IPHONEOS_DEPLOYMENT_TARGET "3.1")
-#
-# find_host_package (PROGRAM ARGS)
-#  A macro used to find executable programs on the host system, not within the iOS environment.
-#  Thanks to the android-cmake project for providing the command
-
-# Standard settings
-set (CMAKE_SYSTEM_NAME Darwin)
-set (CMAKE_SYSTEM_VERSION 1)
-set (UNIX True)
-set (APPLE True)
-set (IOS True)
-
-# Required as of cmake 2.8.10
-set (CMAKE_OSX_DEPLOYMENT_TARGET "" CACHE STRING "Force unset of the deployment target for iOS" FORCE)
-
-# Determine the cmake host system version so we know where to find the iOS SDKs
-find_program (CMAKE_UNAME uname /bin /usr/bin /usr/local/bin)
-if (CMAKE_UNAME)
-    execute_process(COMMAND uname -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
-    string (REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\1" DARWIN_MAJOR_VERSION "${CMAKE_HOST_SYSTEM_VERSION}")
-endif (CMAKE_UNAME)
-
-# Force the compilers to gcc for iOS
-set (CMAKE_C_COMPILER /usr/bin/gcc)
-set (CMAKE_CXX_COMPILER /usr/bin/g++)
-set (CMAKE_AR ar CACHE FILEPATH "" FORCE)
-set (CMAKE_RANLIB ranlib CACHE FILEPATH "" FORCE)
-set (PKG_CONFIG_EXECUTABLE pkg-config CACHE FILEPATH "" FORCE)
-
-# Setup iOS platform unless specified manually with IOS_PLATFORM
-if (NOT DEFINED IOS_PLATFORM)
-    set (IOS_PLATFORM "OS")
-endif (NOT DEFINED IOS_PLATFORM)
-set (IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING "Type of iOS Platform")
-
-# Check the platform selection and setup for developer root
-if (IOS_PLATFORM STREQUAL "OS")
-    set (IOS_PLATFORM_LOCATION "iPhoneOS.platform")
-    set (XCODE_IOS_PLATFORM ios)
-
-    # This causes the installers to properly locate the output libraries
-    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos")
-
-    set (APPLE_IOS True)
-elseif (IOS_PLATFORM STREQUAL "SIMULATOR")
-    set (SIMULATOR_FLAG true)
-    set (IOS_PLATFORM_LOCATION "iPhoneSimulator.platform")
-    set (XCODE_IOS_PLATFORM ios-simulator)
-
-    # This causes the installers to properly locate the output libraries
-    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator")
-
-    set (APPLE_IOS True)
-elseif (IOS_PLATFORM STREQUAL "WATCHOS")
-    set (IOS_PLATFORM_LOCATION "WatchOS.platform")
-    set (XCODE_IOS_PLATFORM watchos)
-
-    # This causes the installers to properly locate the output libraries
-    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchos")
-
-    set (APPLE_WATCH True)
-elseif (IOS_PLATFORM STREQUAL "WATCHSIMULATOR")
-    set (SIMULATOR_FLAG true)
-    set (IOS_PLATFORM_LOCATION "WatchSimulator.platform")
-    set (XCODE_IOS_PLATFORM watchos-simulator)
-
-    # This causes the installers to properly locate the output libraries
-    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchsimulator")
-
-    set (APPLE_WATCH True)
-elseif (IOS_PLATFORM STREQUAL "TVOS")
-    set (IOS_PLATFORM_LOCATION "AppleTvOS.platform")
-    set (XCODE_IOS_PLATFORM tvos)
-
-    # This causes the installers to properly locate the output libraries
-    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-appletvos")
-
-    set (APPLE_TV True)
-elseif (IOS_PLATFORM STREQUAL "TVSIMULATOR")
-    set (SIMULATOR_FLAG true)
-    set (IOS_PLATFORM_LOCATION "AppleTvSimulator.platform")
-    set (XCODE_IOS_PLATFORM tvos-simulator)
-
-    # This causes the installers to properly locate the output libraries
-    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-tvsimulator")
-
-    set (APPLE_TV True)
-elseif (IOS_PLATFORM STREQUAL "VISIONOS")
-    set (IOS_PLATFORM_LOCATION "XROS.platform")
-    set (XCODE_IOS_PLATFORM xros)
-
-    # This causes the installers to properly locate the output libraries
-    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-xros")
-
-    set (APPLE_VISION True)
-elseif (IOS_PLATFORM STREQUAL "VISIONSIMULATOR")
-    set (SIMULATOR_FLAG true)
-    set (IOS_PLATFORM_LOCATION "XRSimulator.platform")
-    set (XCODE_IOS_PLATFORM xros-simulator)
-
-    # This causes the installers to properly locate the output libraries
-    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-xrsimulator")
-
-    set (APPLE_VISION True)
-else (IOS_PLATFORM STREQUAL "OS")
-    message (FATAL_ERROR "Unsupported IOS_PLATFORM value selected. Please choose OS, SIMULATOR, or WATCHOS.")
-endif ()
-
-# All iOS/Darwin specific settings - some may be redundant
-set (CMAKE_SHARED_LIBRARY_PREFIX "lib")
-set (CMAKE_SHARED_LIBRARY_SUFFIX ".dylib")
-set (CMAKE_SHARED_MODULE_PREFIX "lib")
-set (CMAKE_SHARED_MODULE_SUFFIX ".so")
-set (CMAKE_MODULE_EXISTS 1)
-set (CMAKE_DL_LIBS "")
-
-set (CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ")
-set (CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ")
-set (CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}")
-set (CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}")
-
-if (IOS_DEPLOYMENT_TARGET)
-    set (XCODE_IOS_PLATFORM_VERSION_FLAGS "-m${XCODE_IOS_PLATFORM}-version-min=${IOS_DEPLOYMENT_TARGET}")
-endif()
-
-set (CMAKE_SHARED_LINKER_FLAGS_INIT "-fapplication-extension")
-set (CMAKE_C_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS}")
-# Hidden visibility is required for cxx on iOS
-set (CMAKE_CXX_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fvisibility-inlines-hidden")
-
-set (CMAKE_C_LINK_FLAGS   "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fapplication-extension -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}")
-set (CMAKE_CXX_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fapplication-extension -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}")
-
-set (CMAKE_PLATFORM_HAS_INSTALLNAME 1)
-set (CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -headerpad_max_install_names")
-set (CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -headerpad_max_install_names")
-set (CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,")
-set (CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,")
-set (CMAKE_FIND_LIBRARY_SUFFIXES ".dylib" ".so" ".a")
-
-# hack: if a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old build tree
-# (where install_name_tool was hardcoded) and where CMAKE_INSTALL_NAME_TOOL isn't in the cache
-# and still cmake didn't fail in CMakeFindBinUtils.cmake (because it isn't rerun)
-# hardcode CMAKE_INSTALL_NAME_TOOL here to install_name_tool, so it behaves as it did before, Alex
-if (NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
-    find_program(CMAKE_INSTALL_NAME_TOOL install_name_tool)
-endif (NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
-
-# Setup iOS deployment target
-set (IOS_DEPLOYMENT_TARGET ${IOS_DEPLOYMENT_TARGET} CACHE STRING "Minimum iOS version")
-
-# Setup iOS developer location unless specified manually with CMAKE_IOS_DEVELOPER_ROOT
-# Note Xcode 4.3 changed the installation location, choose the most recent one available
-execute_process(COMMAND /usr/bin/xcode-select -print-path OUTPUT_VARIABLE CMAKE_XCODE_DEVELOPER_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)
-set (XCODE_POST_43_ROOT "${CMAKE_XCODE_DEVELOPER_DIR}/Platforms/${IOS_PLATFORM_LOCATION}/Developer")
-set (XCODE_PRE_43_ROOT "/Developer/Platforms/${IOS_PLATFORM_LOCATION}/Developer")
-if (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
-    if (EXISTS ${XCODE_POST_43_ROOT})
-        set (CMAKE_IOS_DEVELOPER_ROOT ${XCODE_POST_43_ROOT})
-    elseif (EXISTS ${XCODE_PRE_43_ROOT})
-        set (CMAKE_IOS_DEVELOPER_ROOT ${XCODE_PRE_43_ROOT})
-    endif (EXISTS ${XCODE_POST_43_ROOT})
-endif (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
-set (CMAKE_IOS_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT} CACHE PATH "Location of iOS Platform")
-
-# Find and use the most recent iOS sdk unless specified manually with CMAKE_IOS_SDK_ROOT
-if (NOT DEFINED CMAKE_IOS_SDK_ROOT)
-    file (GLOB _CMAKE_IOS_SDKS "${CMAKE_IOS_DEVELOPER_ROOT}/SDKs/*")
-    if (_CMAKE_IOS_SDKS)
-        list (SORT _CMAKE_IOS_SDKS)
-        list (REVERSE _CMAKE_IOS_SDKS)
-        list (GET _CMAKE_IOS_SDKS 0 CMAKE_IOS_SDK_ROOT)
-    else (_CMAKE_IOS_SDKS)
-        message (FATAL_ERROR "No iOS SDK's found in default search path ${CMAKE_IOS_DEVELOPER_ROOT}. Manually set CMAKE_IOS_SDK_ROOT or install the iOS SDK.")
-    endif (_CMAKE_IOS_SDKS)
-    message (STATUS "Toolchain using default iOS SDK: ${CMAKE_IOS_SDK_ROOT}")
-endif (NOT DEFINED CMAKE_IOS_SDK_ROOT)
-set (CMAKE_IOS_SDK_ROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Location of the selected iOS SDK")
-
-# Set the sysroot default to the most recent SDK
-set (CMAKE_OSX_SYSROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Sysroot used for iOS support")
-
-# Set the architectures unless specified manually with IOS_ARCH
-if (NOT DEFINED IOS_ARCH)
-    if (IOS_PLATFORM STREQUAL "OS")
-        set (IOS_ARCH "arm64")
-    elseif (IOS_PLATFORM STREQUAL "SIMULATOR")
-        set (IOS_ARCH "x86_64;arm64")
-    elseif (IOS_PLATFORM STREQUAL "WATCHOS")
-        set (IOS_ARCH "armv7k;arm64_32;arm64")
-
-        # Include C++ Standard Library for Xcode 15 builds.
-        include_directories(SYSTEM "${CMAKE_IOS_SDK_ROOT}/usr/include/c++/v1")
-    elseif (IOS_PLATFORM STREQUAL "WATCHSIMULATOR")
-        set (IOS_ARCH "x86_64;arm64")
-
-        # Include C++ Standard Library for Xcode 15 builds.
-        include_directories(SYSTEM "${CMAKE_IOS_SDK_ROOT}/usr/include/c++/v1")
-    elseif (IOS_PLATFORM STREQUAL "TVOS")
-        set (IOS_ARCH "arm64")
-    elseif (IOS_PLATFORM STREQUAL "TVSIMULATOR")
-        set (IOS_ARCH "x86_64;arm64")
-    elseif (IOS_PLATFORM STREQUAL "VISIONOS")
-        set (IOS_ARCH "arm64")
-    elseif (IOS_PLATFORM STREQUAL "VISIONSIMULATOR")
-        set (IOS_ARCH "x86_64;arm64")
-    endif()
-endif()
-message (STATUS "The iOS architectures: ${IOS_ARCH}")
-
-set (CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE STRING "Build architecture for iOS")
-
-# Set the find root to the iOS developer roots and to user defined paths
-set (CMAKE_FIND_ROOT_PATH ${CMAKE_IOS_DEVELOPER_ROOT} ${CMAKE_IOS_SDK_ROOT} ${CMAKE_PREFIX_PATH} CACHE STRING "iOS find search path root")
-
-# default to searching for frameworks first
-set (CMAKE_FIND_FRAMEWORK FIRST)
-
-# set up the default search directories for frameworks
-set (CMAKE_SYSTEM_FRAMEWORK_PATH
-    ${CMAKE_IOS_SDK_ROOT}/System/Library/Frameworks
-    ${CMAKE_IOS_SDK_ROOT}/System/Library/PrivateFrameworks
-    ${CMAKE_IOS_SDK_ROOT}/Developer/Library/Frameworks
-)
-
-# only search the iOS sdks, not the remainder of the host filesystem
-set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
-set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
-set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
-
-# This little macro lets you set any Xcode specific property
-macro (set_xcode_property TARGET XCODE_PROPERTY XCODE_VALUE)
-    set_property (TARGET ${TARGET} PROPERTY XCODE_ATTRIBUTE_${XCODE_PROPERTY} ${XCODE_VALUE})
-endmacro (set_xcode_property)
-
-# This macro lets you find executable programs on the host system
-macro (find_host_package)
-    set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
-    set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER)
-    set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER)
-    set (IOS FALSE)
-
-    find_package(${ARGN})
-
-    set (IOS TRUE)
-    set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
-    set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
-    set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
-endmacro (find_host_package)
diff --git a/third-party/td/td/CMake/illumos.cmake b/third-party/td/td/CMake/illumos.cmake
deleted file mode 100644
index 70583d1a82..0000000000
--- a/third-party/td/td/CMake/illumos.cmake
+++ /dev/null
@@ -1,10 +0,0 @@
-if (CMAKE_SYSTEM_NAME STREQUAL "SunOS")
-  #
-  # Determine if the host is running an illumos distribution:
-  #
-  execute_process(COMMAND /usr/bin/uname -o OUTPUT_VARIABLE UNAME_O OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-  if (UNAME_O STREQUAL "illumos")
-    set(ILLUMOS 1)
-  endif()
-endif()
diff --git a/third-party/td/td/CMakeLists.txt b/third-party/td/td/CMakeLists.txt
deleted file mode 100644
index d6bbc903b6..0000000000
--- a/third-party/td/td/CMakeLists.txt
+++ /dev/null
@@ -1,1449 +0,0 @@
-cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
-
-project(TDLib VERSION 1.8.46 LANGUAGES CXX C)
-
-if (NOT DEFINED CMAKE_MODULE_PATH)
-  set(CMAKE_MODULE_PATH "")
-endif()
-set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake" "${CMAKE_MODULE_PATH}")
-
-if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
-  set(CMAKE_INSTALL_LIBDIR "lib")
-endif()
-if (NOT DEFINED CMAKE_INSTALL_BINDIR)
-  set(CMAKE_INSTALL_BINDIR "bin")
-endif()
-if (NOT DEFINED CMAKE_INSTALL_INCLUDEDIR)
-  set(CMAKE_INSTALL_INCLUDEDIR "include")
-endif()
-
-if (POLICY CMP0074)
-  # use environment variables to find libraries
-  cmake_policy(SET CMP0074 NEW)
-endif()
-
-include(PreventInSourceBuild)
-prevent_in_source_build()
-
-option(TD_INSTALL_STATIC_LIBRARIES "Enable installation of static libraries." ON)
-option(TD_INSTALL_SHARED_LIBRARIES "Enable installation of shared libraries." ON)
-option(TD_ENABLE_JNI "Use \"ON\" to enable JNI-compatible TDLib API.")
-option(TD_ENABLE_DOTNET "Use \"ON\" to enable generation of C++/CLI or C++/CX TDLib API bindings.")
-if (NOT CMAKE_CROSSCOMPILING)
-  option(TD_GENERATE_SOURCE_FILES "Use \"ON\" to just generate TDLib source files.")
-endif()
-
-include(CTest)
-
-option(TD_ENABLE_LTO "Use \"ON\" to enable Link Time Optimization.")
-
-if (TD_ENABLE_LTO)
-  include(CheckIPOSupported)
-  check_ipo_supported(RESULT IPO_SUPPORTED)
-  if (IPO_SUPPORTED)
-    # set_property(DIRECTORY PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE) do not work?
-    string(REPLACE ";" " " CXX_FLAGS_IPO "${CMAKE_CXX_COMPILE_OPTIONS_IPO}")
-    message(STATUS "Use link time optimization CXX options: ${CXX_FLAGS_IPO}")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_FLAGS_IPO}")
-
-    string(REPLACE ";" " " C_FLAGS_IPO "${CMAKE_C_COMPILE_OPTIONS_IPO}")
-    message(STATUS "Use link time optimization C options: ${C_FLAGS_IPO}")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${C_FLAGS_IPO}")
-
-    string(REPLACE ";" " " LINK_FLAGS_IPO "${CMAKE_CXX_LINK_OPTIONS_IPO}")
-    message(STATUS "Use link time optimization linker options: ${LINK_FLAGS_IPO}")
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${LINK_FLAGS_IPO}")
-  endif()
-endif()
-
-# Configure Ccache if available
-find_program(CCACHE_FOUND ccache)
-#set(CCACHE_FOUND 0)
-if (CCACHE_FOUND)
-  message(STATUS "Found ccache")
-  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
-  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
-else()
-  message(STATUS "Could NOT find ccache (this is NOT an error)")
-endif()
-
-set(MEMPROF "" CACHE STRING "Use one of \"ON\", \"FAST\" or \"SAFE\" to enable memory profiling. \
-Works under macOS and Linux when compiled using glibc. \
-In FAST mode stack is unwinded only using frame pointers, which may fail. \
-In SAFE mode stack is unwinded using backtrace function from execinfo.h, which may be very slow. \
-By default both methods are used to achieve the maximum speed and accuracy")
-
-if (EMSCRIPTEN)
-  # use prebuilt zlib
-  set(ZLIB_FOUND 1)
-  set(ZLIB_LIBRARIES)
-  set(ZLIB_INCLUDE_DIR)
-
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s ALLOW_MEMORY_GROWTH=1 -s MEMFS_APPEND_TO_TYPED_ARRAYS=1 -s USE_ZLIB=1 -s MODULARIZE=1 \
-    -s EXPORT_NAME=\"'createTdwebModule'\" -s WEBSOCKET_URL=\"'wss:#'\" -s EXPORTED_RUNTIME_METHODS=\"['FS','cwrap']\" -lidbfs.js -lworkerfs.js")
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s ALLOW_MEMORY_GROWTH=1 -s MEMFS_APPEND_TO_TYPED_ARRAYS=1 -s USE_ZLIB=1 -s MODULARIZE=1 \
-    -s EXPORT_NAME=\"'createTdwebModule'\" -s WEBSOCKET_URL=\"'wss:#'\" -s EXPORTED_RUNTIME_METHODS=\"['FS','cwrap']\" -lidbfs.js -lworkerfs.js")
-  set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -s DEMANGLE_SUPPORT=1 -s ASSERTIONS=1")
-  set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -s DEMANGLE_SUPPORT=1 -s ASSERTIONS=1")
-
-  set(TD_EMSCRIPTEN td_wasm)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s WASM=1 --post-js ${CMAKE_CURRENT_SOURCE_DIR}/post.js")
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s WASM=1")
-endif()
-
-if (NOT TD_GENERATE_SOURCE_FILES)
-  if (NOT OPENSSL_FOUND)
-    find_package(OpenSSL)
-  endif()
-  if (OPENSSL_FOUND)
-    message(STATUS "Found OpenSSL: ${OPENSSL_INCLUDE_DIR} ${OPENSSL_LIBRARIES}")
-  endif()
-endif()
-
-set(CMAKE_THREAD_PREFER_PTHREAD ON)
-set(THREADS_PREFER_PTHREAD_FLAG ON)
-find_package(Threads REQUIRED)
-
-if (THREADS_HAVE_PTHREAD_ARG)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
-endif()
-
-include(TdSetUpCompiler)
-td_set_up_compiler()
-
-if (MSVC)
-  option(TD_ENABLE_MULTI_PROCESSOR_COMPILATION "Use \"ON\" to enable multi-processor compilation.")
-
-  if (TD_ENABLE_MULTI_PROCESSOR_COMPILATION)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
-  endif()
-
-  if (TD_ENABLE_JNI)
-    # https://github.com/tdlib/td/issues/2912
-    add_definitions(-D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)
-  endif()
-endif()
-
-if (CLANG OR GCC)
-  if (MEMPROF)
-    include(CheckCXXCompilerFlag)
-    check_cxx_compiler_flag(-no-pie CXX_NO_PIE_FLAG)
-    if (CXX_NO_PIE_FLAG)
-      set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -no-pie")
-    elseif (APPLE)
-      set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-no_pie")
-    endif()
-    include(AddCXXCompilerFlag)
-    add_cxx_compiler_flag("-static-libstdc++")
-    add_cxx_compiler_flag("-static-libgcc")
-  endif()
-endif()
-
-include(GetGitRevisionDescription)
-get_git_head_revision(TD_GIT_REFSPEC TD_GIT_COMMIT_HASH)
-message(STATUS "Git state: ${TD_GIT_COMMIT_HASH}")
-
-configure_file("${CMAKE_CURRENT_SOURCE_DIR}/td/telegram/GitCommitHash.cpp.in" "${CMAKE_CURRENT_BINARY_DIR}/td/telegram/GitCommitHash.cpp" @ONLY)
-
-add_subdirectory(tdtl)
-
-if (TD_GENERATE_SOURCE_FILES)
-  set(TDUTILS_MIME_TYPE ON CACHE BOOL "" FORCE)
-  set(TDUTILS_USE_EXTERNAL_DEPENDENCIES OFF CACHE BOOL "" FORCE)
-endif()
-set(TDUTILS_ENABLE_INSTALL ${TD_INSTALL_STATIC_LIBRARIES} CACHE BOOL "" FORCE)
-add_subdirectory(tdutils)
-
-add_subdirectory(td/generate)
-
-if (NOT CMAKE_CROSSCOMPILING)
-  set(TD_ALWAYS_GENERATE_SOURCE "")
-  if (TD_GENERATE_SOURCE_FILES)
-    set(TD_ALWAYS_GENERATE_SOURCE "ALL")
-  endif()
-  add_custom_target(prepare_cross_compiling ${TD_ALWAYS_GENERATE_SOURCE} DEPENDS tl_generate_mtproto tl_generate_common tdmime_auto tl_generate_json)
-  if (TD_ENABLE_DOTNET)
-    add_custom_target(remove_cpp_documentation
-      WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
-      COMMAND remove_documentation ${TL_TD_API_AUTO_SOURCE} td/telegram/Client.h td/telegram/Log.h td/tl/TlObject.h
-      COMMENT "Remove C++ documentation from sources"
-      DEPENDS remove_documentation tl_generate_mtproto tl_generate_common generate_dotnet_api ${TL_TD_API_AUTO_SOURCE} td/telegram/Client.h td/telegram/Log.h td/tl/TlObject.h
-    )
-
-    add_dependencies(prepare_cross_compiling generate_dotnet_api remove_cpp_documentation)
-  endif()
-endif()
-
-if (NOT OPENSSL_FOUND)
-  if (NOT TD_GENERATE_SOURCE_FILES)
-    message(WARNING "Can't find OpenSSL: stop TDLib building")
-  endif()
-  return()
-endif()
-
-if (NOT ZLIB_FOUND)
-  find_package(ZLIB)
-endif()
-if (NOT ZLIB_FOUND)
-  message(WARNING "Can't find zlib: stop TDLib building")
-  return()
-endif()
-
-if (NOT TDUTILS_MIME_TYPE OR NOT TDUTILS_USE_EXTERNAL_DEPENDENCIES)
-  message(WARNING "Option TDUTILS_MIME_TYPE and TDUTILS_USE_EXTERNAL_DEPENDENCIES must not be disabled: stop TDLib building")
-  return()
-endif()
-
-set(TDACTOR_ENABLE_INSTALL ${TD_INSTALL_STATIC_LIBRARIES} CACHE BOOL "" FORCE)
-add_subdirectory(tdactor)
-
-set(TDNET_ENABLE_INSTALL ${TD_INSTALL_STATIC_LIBRARIES} CACHE BOOL "" FORCE)
-add_subdirectory(tdnet)
-
-set(TDSQLITE_ENABLE_INSTALL ${TD_INSTALL_STATIC_LIBRARIES} CACHE BOOL "" FORCE)
-add_subdirectory(sqlite)
-
-set(TDDB_ENABLE_INSTALL ${TD_INSTALL_STATIC_LIBRARIES} CACHE BOOL "" FORCE)
-add_subdirectory(tddb)
-
-if (BUILD_TESTING)
-  add_subdirectory(test)
-endif()
-
-set(TDE2E_ENABLE_INSTALL ${TD_INSTALL_STATIC_LIBRARIES} CACHE BOOL "" FORCE)
-add_subdirectory(tde2e)
-
-if (NOT CMAKE_CROSSCOMPILING)
-  add_subdirectory(benchmark)
-endif()
-
-
-get_directory_property(HAS_PARENT PARENT_DIRECTORY)
-if (HAS_PARENT)
-  set(TL_TD_JSON_AUTO ${TL_TD_JSON_AUTO_SOURCE} PARENT_SCOPE) # used in tdbot
-  set(TD_TEST_SOURCE ${TD_TEST_SOURCE} PARENT_SCOPE) # used to build tests
-endif()
-
-
-# SOURCE SETS
-
-set_source_files_properties(${TL_TD_API_AUTO_SOURCE} PROPERTIES GENERATED TRUE)
-if (TD_ENABLE_JNI OR ANDROID)
-  set(TL_JNI_OBJECT_SOURCE
-    td/tl/tl_jni_object.cpp
-    td/tl/tl_jni_object.h
-  )
-else()
-  set(TL_JNI_OBJECT_SOURCE)
-endif()
-
-set(TL_TD_API_SOURCE
-  ${TL_TD_API_AUTO_SOURCE}
-  ${TL_JNI_OBJECT_SOURCE}
-  td/tl/TlObject.h
-)
-
-set_source_files_properties(${TL_MTPROTO_AUTO_SOURCE} PROPERTIES GENERATED TRUE)
-
-set_source_files_properties(${TL_TD_AUTO_SOURCE} PROPERTIES GENERATED TRUE)
-
-set_source_files_properties(${TL_TD_JSON_AUTO_SOURCE} PROPERTIES GENERATED TRUE)
-set(TL_TD_JSON_SOURCE
-  ${TL_TD_JSON_AUTO_SOURCE}
-  td/tl/tl_json.h
-)
-
-set_source_files_properties(${TL_C_AUTO_SOURCE} PROPERTIES GENERATED TRUE)
-set(TL_C_SCHEME_SOURCE
-  ${TL_C_AUTO_SOURCE}
-)
-
-set_source_files_properties(${TL_DOTNET_AUTO_SOURCE} PROPERTIES GENERATED TRUE)
-set(TL_DOTNET_SCHEME_SOURCE
-  ${TL_DOTNET_AUTO_SOURCE}
-  td/tl/tl_dotnet_object.h
-)
-
-set(TD_MTPROTO_SOURCE
-  td/mtproto/AuthData.cpp
-  td/mtproto/ConnectionManager.cpp
-  td/mtproto/DhHandshake.cpp
-  td/mtproto/Handshake.cpp
-  td/mtproto/HandshakeActor.cpp
-  td/mtproto/HttpTransport.cpp
-  td/mtproto/IStreamTransport.cpp
-  td/mtproto/KDF.cpp
-  td/mtproto/Ping.cpp
-  td/mtproto/PingConnection.cpp
-  td/mtproto/ProxySecret.cpp
-  td/mtproto/RawConnection.cpp
-  td/mtproto/RSA.cpp
-  td/mtproto/SessionConnection.cpp
-  td/mtproto/TcpTransport.cpp
-  td/mtproto/TlsInit.cpp
-  td/mtproto/TlsReaderByteFlow.cpp
-  td/mtproto/Transport.cpp
-  td/mtproto/utils.cpp
-
-  td/mtproto/AuthData.h
-  td/mtproto/AuthKey.h
-  td/mtproto/ConnectionManager.h
-  td/mtproto/CryptoStorer.h
-  td/mtproto/DhCallback.h
-  td/mtproto/DhHandshake.h
-  td/mtproto/Handshake.h
-  td/mtproto/HandshakeActor.h
-  td/mtproto/HandshakeConnection.h
-  td/mtproto/HttpTransport.h
-  td/mtproto/IStreamTransport.h
-  td/mtproto/KDF.h
-  td/mtproto/MessageId.h
-  td/mtproto/MtprotoQuery.h
-  td/mtproto/NoCryptoStorer.h
-  td/mtproto/PacketInfo.h
-  td/mtproto/PacketStorer.h
-  td/mtproto/Ping.h
-  td/mtproto/PingConnection.h
-  td/mtproto/ProxySecret.h
-  td/mtproto/RawConnection.h
-  td/mtproto/RSA.h
-  td/mtproto/SessionConnection.h
-  td/mtproto/TcpTransport.h
-  td/mtproto/TlsInit.h
-  td/mtproto/TlsReaderByteFlow.h
-  td/mtproto/Transport.h
-  td/mtproto/TransportType.h
-  td/mtproto/utils.h
-
-  ${TL_MTPROTO_AUTO_SOURCE}
-
-  td/tl/TlObject.h
-  td/tl/tl_object_parse.h
-  td/tl/tl_object_store.h
-)
-
-set(TDLIB_SOURCE_PART1
-  td/telegram/AccountManager.cpp
-  td/telegram/AffiliateType.cpp
-  td/telegram/AlarmManager.cpp
-  td/telegram/AnimationsManager.cpp
-  td/telegram/Application.cpp
-  td/telegram/AttachMenuManager.cpp
-  td/telegram/AudiosManager.cpp
-  td/telegram/AuthManager.cpp
-  td/telegram/AutoDownloadSettings.cpp
-  td/telegram/AutosaveManager.cpp
-  td/telegram/BackgroundInfo.cpp
-  td/telegram/BackgroundManager.cpp
-  td/telegram/BackgroundType.cpp
-  td/telegram/BaseTheme.cpp
-  td/telegram/Birthdate.cpp
-  td/telegram/BoostManager.cpp
-  td/telegram/BotCommand.cpp
-  td/telegram/BotCommandScope.cpp
-  td/telegram/BotInfoManager.cpp
-  td/telegram/BotMenuButton.cpp
-  td/telegram/BotQueries.cpp
-  td/telegram/BotRecommendationManager.cpp
-  td/telegram/BotVerification.cpp
-  td/telegram/BotVerifierSettings.cpp
-  td/telegram/BusinessAwayMessage.cpp
-  td/telegram/BusinessAwayMessageSchedule.cpp
-  td/telegram/BusinessBotManageBar.cpp
-  td/telegram/BusinessBotRights.cpp
-  td/telegram/BusinessChatLink.cpp
-  td/telegram/BusinessConnectedBot.cpp
-  td/telegram/BusinessConnectionManager.cpp
-  td/telegram/BusinessGreetingMessage.cpp
-  td/telegram/BusinessInfo.cpp
-  td/telegram/BusinessIntro.cpp
-  td/telegram/BusinessManager.cpp
-  td/telegram/BusinessRecipients.cpp
-  td/telegram/BusinessWorkHours.cpp
-  td/telegram/CallActor.cpp
-  td/telegram/CallbackQueriesManager.cpp
-  td/telegram/CallDiscardReason.cpp
-  td/telegram/CallManager.cpp
-  td/telegram/ChannelParticipantFilter.cpp
-  td/telegram/ChannelRecommendationManager.cpp
-  td/telegram/ChatManager.cpp
-  td/telegram/ChatReactions.cpp
-  td/telegram/ClientActor.cpp
-  td/telegram/CommonDialogManager.cpp
-  td/telegram/ConfigManager.cpp
-  td/telegram/ConnectionState.cpp
-  td/telegram/ConnectionStateManager.cpp
-  td/telegram/Contact.cpp
-  td/telegram/CountryInfoManager.cpp
-  td/telegram/DelayDispatcher.cpp
-  td/telegram/Dependencies.cpp
-  td/telegram/DeviceTokenManager.cpp
-  td/telegram/DhCache.cpp
-  td/telegram/DialogAction.cpp
-  td/telegram/DialogActionBar.cpp
-  td/telegram/DialogActionManager.cpp
-  td/telegram/DialogAdministrator.cpp
-  td/telegram/DialogDb.cpp
-  td/telegram/DialogEventLog.cpp
-  td/telegram/DialogFilter.cpp
-  td/telegram/DialogFilterInviteLink.cpp
-  td/telegram/DialogFilterManager.cpp
-  td/telegram/DialogId.cpp
-  td/telegram/DialogInviteLink.cpp
-  td/telegram/DialogInviteLinkManager.cpp
-  td/telegram/DialogLocation.cpp
-  td/telegram/DialogManager.cpp
-  td/telegram/DialogNotificationSettings.cpp
-  td/telegram/DialogParticipant.cpp
-  td/telegram/DialogParticipantFilter.cpp
-  td/telegram/DialogParticipantManager.cpp
-  td/telegram/DialogSource.cpp
-  td/telegram/Dimensions.cpp
-  td/telegram/DisallowedGiftsSettings.cpp
-  td/telegram/Document.cpp
-  td/telegram/DocumentsManager.cpp
-  td/telegram/DownloadManager.cpp
-  td/telegram/DownloadManagerCallback.cpp
-  td/telegram/DraftMessage.cpp
-  td/telegram/EmailVerification.cpp
-  td/telegram/EmojiGroup.cpp
-  td/telegram/EmojiGroupType.cpp
-  td/telegram/EmojiStatus.cpp
-  td/telegram/FactCheck.cpp
-  td/telegram/FileReferenceManager.cpp
-  td/telegram/files/FileBitmask.cpp
-  td/telegram/files/FileDb.cpp
-  td/telegram/files/FileDownloader.cpp
-  td/telegram/files/FileDownloadManager.cpp
-  td/telegram/files/FileEncryptionKey.cpp
-  td/telegram/files/FileFromBytes.cpp
-  td/telegram/files/FileGcParameters.cpp
-  td/telegram/files/FileGcWorker.cpp
-  td/telegram/files/FileGenerateManager.cpp
-  td/telegram/files/FileHashUploader.cpp
-  td/telegram/files/FileLoaderUtils.cpp
-  td/telegram/files/FileLoadManager.cpp
-  td/telegram/files/FileManager.cpp
-  td/telegram/files/FileStats.cpp
-  td/telegram/files/FileStatsWorker.cpp
-  td/telegram/files/FileType.cpp
-  td/telegram/files/FileUploader.cpp
-  td/telegram/files/FileUploadManager.cpp
-  td/telegram/files/PartsManager.cpp
-  td/telegram/files/ResourceManager.cpp
-  td/telegram/files/ResourceState.cpp
-  td/telegram/ForumTopic.cpp
-  td/telegram/ForumTopicEditedData.cpp
-  td/telegram/ForumTopicIcon.cpp
-  td/telegram/ForumTopicInfo.cpp
-  td/telegram/ForumTopicManager.cpp
-  td/telegram/Game.cpp
-  td/telegram/GameManager.cpp
-  td/telegram/GiveawayParameters.cpp
-  td/telegram/Global.cpp
-  td/telegram/GlobalPrivacySettings.cpp
-  td/telegram/GroupCallManager.cpp
-  td/telegram/GroupCallParticipant.cpp
-  td/telegram/GroupCallParticipantOrder.cpp
-  td/telegram/GroupCallVideoPayload.cpp
-  td/telegram/HashtagHints.cpp
-  td/telegram/InlineMessageManager.cpp
-  td/telegram/InlineQueriesManager.cpp
-  td/telegram/InputBusinessChatLink.cpp
-  td/telegram/InputDialogId.cpp
-  td/telegram/InputGroupCallId.cpp
-  td/telegram/InputInvoice.cpp
-  td/telegram/InputMessageText.cpp
-  td/telegram/JsonValue.cpp
-  td/telegram/LanguagePackManager.cpp
-  td/telegram/LinkManager.cpp
-  td/telegram/Location.cpp
-  td/telegram/logevent/LogEventHelper.cpp
-  td/telegram/Logging.cpp
-  td/telegram/MediaArea.cpp
-  td/telegram/MediaAreaCoordinates.cpp
-  td/telegram/MessageContent.cpp
-  td/telegram/MessageContentType.cpp
-  td/telegram/MessageDb.cpp
-  td/telegram/MessageEntity.cpp
-  td/telegram/MessageExtendedMedia.cpp
-  td/telegram/MessageForwardInfo.cpp
-  td/telegram/MessageId.cpp
-  td/telegram/MessageImportManager.cpp
-  td/telegram/MessageInputReplyTo.cpp
-  td/telegram/MessageOrigin.cpp
-  td/telegram/MessageQueryManager.cpp
-  td/telegram/MessageQuote.cpp
-  td/telegram/MessageReaction.cpp
-  td/telegram/MessageReactor.cpp
-  td/telegram/MessageReplyHeader.cpp
-  td/telegram/MessageReplyInfo.cpp
-  td/telegram/MessageSearchFilter.cpp
-  td/telegram/MessageSearchOffset.cpp
-  td/telegram/MessageSelfDestructType.cpp
-  td/telegram/MessageSender.cpp
-  td/telegram/MessagesInfo.cpp
-  td/telegram/MessagesManager.cpp
-  td/telegram/MessageSource.cpp
-  td/telegram/MessageThreadDb.cpp
-  td/telegram/MessageTtl.cpp
-  td/telegram/MessageViewer.cpp
-  td/telegram/misc.cpp
-  td/telegram/MissingInvitee.cpp
-)
-set(TDLIB_SOURCE_PART2
-  td/telegram/net/AuthDataShared.cpp
-  td/telegram/net/ConnectionCreator.cpp
-  td/telegram/net/DcAuthManager.cpp
-  td/telegram/net/DcOptionsSet.cpp
-  td/telegram/net/MtprotoHeader.cpp
-  td/telegram/net/NetActor.cpp
-  td/telegram/net/NetQuery.cpp
-  td/telegram/net/NetQueryCreator.cpp
-  td/telegram/net/NetQueryDelayer.cpp
-  td/telegram/net/NetQueryDispatcher.cpp
-  td/telegram/net/NetQueryStats.cpp
-  td/telegram/net/NetQueryVerifier.cpp
-  td/telegram/net/NetStatsManager.cpp
-  td/telegram/net/Proxy.cpp
-  td/telegram/net/PublicRsaKeySharedCdn.cpp
-  td/telegram/net/PublicRsaKeySharedMain.cpp
-  td/telegram/net/PublicRsaKeyWatchdog.cpp
-  td/telegram/net/Session.cpp
-  td/telegram/net/SessionMultiProxy.cpp
-  td/telegram/net/SessionProxy.cpp
-  td/telegram/NewPasswordState.cpp
-  td/telegram/NotificationGroupInfo.cpp
-  td/telegram/NotificationGroupType.cpp
-  td/telegram/NotificationManager.cpp
-  td/telegram/NotificationSettingsManager.cpp
-  td/telegram/NotificationSettingsScope.cpp
-  td/telegram/NotificationSound.cpp
-  td/telegram/NotificationType.cpp
-  td/telegram/OnlineManager.cpp
-  td/telegram/OptionManager.cpp
-  td/telegram/OrderedMessage.cpp
-  td/telegram/OrderInfo.cpp
-  td/telegram/Outline.cpp
-  td/telegram/PaidReactionType.cpp
-  td/telegram/PasswordManager.cpp
-  td/telegram/Payments.cpp
-  td/telegram/PeerColor.cpp
-  td/telegram/PeopleNearbyManager.cpp
-  td/telegram/PhoneNumberManager.cpp
-  td/telegram/Photo.cpp
-  td/telegram/PhotoSize.cpp
-  td/telegram/PhotoSizeSource.cpp
-  td/telegram/PollManager.cpp
-  td/telegram/Premium.cpp
-  td/telegram/PremiumGiftOption.cpp
-  td/telegram/PrivacyManager.cpp
-  td/telegram/PromoDataManager.cpp
-  td/telegram/QueryCombiner.cpp
-  td/telegram/QueryMerger.cpp
-  td/telegram/QuickReplyManager.cpp
-  td/telegram/ReactionListType.cpp
-  td/telegram/ReactionManager.cpp
-  td/telegram/ReactionNotificationSettings.cpp
-  td/telegram/ReactionNotificationsFrom.cpp
-  td/telegram/ReactionType.cpp
-  td/telegram/RecentDialogList.cpp
-  td/telegram/ReferralProgramInfo.cpp
-  td/telegram/ReferralProgramManager.cpp
-  td/telegram/ReferralProgramParameters.cpp
-  td/telegram/ReferralProgramSortOrder.cpp
-  td/telegram/RepliedMessageInfo.cpp
-  td/telegram/ReplyMarkup.cpp
-  td/telegram/ReportReason.cpp
-  td/telegram/RequestedDialogType.cpp
-  td/telegram/Requests.cpp
-  td/telegram/RestrictionReason.cpp
-  td/telegram/SavedMessagesManager.cpp
-  td/telegram/SavedMessagesTopicId.cpp
-  td/telegram/ScopeNotificationSettings.cpp
-  td/telegram/SecretChatActor.cpp
-  td/telegram/SecretChatDb.cpp
-  td/telegram/SecretChatsManager.cpp
-  td/telegram/SecretInputMedia.cpp
-  td/telegram/SecureManager.cpp
-  td/telegram/SecureStorage.cpp
-  td/telegram/SecureValue.cpp
-  td/telegram/SendCodeHelper.cpp
-  td/telegram/SentEmailCode.cpp
-  td/telegram/SequenceDispatcher.cpp
-  td/telegram/SharedDialog.cpp
-  td/telegram/SpecialStickerSetType.cpp
-  td/telegram/SponsoredMessageManager.cpp
-  td/telegram/StarAmount.cpp
-  td/telegram/StarGift.cpp
-  td/telegram/StarGiftAttribute.cpp
-  td/telegram/StarGiftId.cpp
-  td/telegram/StarGiftManager.cpp
-  td/telegram/StarGiftSettings.cpp
-  td/telegram/StarManager.cpp
-  td/telegram/StarSubscription.cpp
-  td/telegram/StarSubscriptionPricing.cpp
-  td/telegram/StateManager.cpp
-  td/telegram/StatisticsManager.cpp
-  td/telegram/StickerFormat.cpp
-  td/telegram/StickerListType.cpp
-  td/telegram/StickerMaskPosition.cpp
-  td/telegram/StickerPhotoSize.cpp
-  td/telegram/StickerSetId.cpp
-  td/telegram/StickersManager.cpp
-  td/telegram/StickerType.cpp
-  td/telegram/StorageManager.cpp
-  td/telegram/StoryContent.cpp
-  td/telegram/StoryContentType.cpp
-  td/telegram/StoryDb.cpp
-  td/telegram/StoryForwardInfo.cpp
-  td/telegram/StoryInteractionInfo.cpp
-  td/telegram/StoryManager.cpp
-  td/telegram/StoryStealthMode.cpp
-  td/telegram/StoryViewer.cpp
-  td/telegram/SuggestedAction.cpp
-  td/telegram/SuggestedActionManager.cpp
-  td/telegram/Support.cpp
-  td/telegram/SynchronousRequests.cpp
-  td/telegram/TargetDialogTypes.cpp
-  td/telegram/Td.cpp
-  td/telegram/TdDb.cpp
-  td/telegram/TermsOfService.cpp
-  td/telegram/TermsOfServiceManager.cpp
-  td/telegram/ThemeManager.cpp
-  td/telegram/ThemeSettings.cpp
-  td/telegram/TimeZoneManager.cpp
-  td/telegram/TopDialogCategory.cpp
-  td/telegram/TopDialogManager.cpp
-  td/telegram/TranscriptionInfo.cpp
-  td/telegram/TranscriptionManager.cpp
-  td/telegram/TranslationManager.cpp
-  td/telegram/UpdatesManager.cpp
-  td/telegram/UserManager.cpp
-  td/telegram/Usernames.cpp
-  td/telegram/UserPrivacySetting.cpp
-  td/telegram/UserPrivacySettingRule.cpp
-  td/telegram/UserStarGift.cpp
-  td/telegram/Venue.cpp
-  td/telegram/VerificationStatus.cpp
-  td/telegram/VideoNotesManager.cpp
-  td/telegram/VideosManager.cpp
-  td/telegram/VoiceNotesManager.cpp
-  td/telegram/WebApp.cpp
-  td/telegram/WebAppManager.cpp
-  td/telegram/WebAppOpenParameters.cpp
-  td/telegram/WebPageBlock.cpp
-  td/telegram/WebPagesManager.cpp
-
-  td/telegram/AccentColorId.h
-  td/telegram/AccessRights.h
-  td/telegram/AccountManager.h
-  td/telegram/AffectedHistory.h
-  td/telegram/AffiliateType.h
-  td/telegram/AlarmManager.h
-  td/telegram/AnimationsManager.h
-  td/telegram/Application.h
-  td/telegram/AttachMenuManager.h
-  td/telegram/AudiosManager.h
-  td/telegram/AuthManager.h
-  td/telegram/AutoDownloadSettings.h
-  td/telegram/AutosaveManager.h
-  td/telegram/BackgroundId.h
-  td/telegram/BackgroundInfo.h
-  td/telegram/BackgroundManager.h
-  td/telegram/BackgroundType.h
-  td/telegram/BaseTheme.h
-  td/telegram/Birthdate.h
-  td/telegram/BotVerification.h
-  td/telegram/BotVerifierSettings.h
-  td/telegram/BlockListId.h
-  td/telegram/BoostManager.h
-  td/telegram/BotCommand.h
-  td/telegram/BotCommandScope.h
-  td/telegram/BotInfoManager.h
-  td/telegram/BotMenuButton.h
-  td/telegram/BotQueries.h
-  td/telegram/BotRecommendationManager.h
-  td/telegram/BusinessAwayMessage.h
-  td/telegram/BusinessAwayMessageSchedule.h
-  td/telegram/BusinessBotManageBar.h
-  td/telegram/BusinessBotRights.h
-  td/telegram/BusinessChatLink.h
-  td/telegram/BusinessConnectedBot.h
-  td/telegram/BusinessConnectionId.h
-  td/telegram/BusinessConnectionManager.h
-  td/telegram/BusinessGreetingMessage.h
-  td/telegram/BusinessInfo.h
-  td/telegram/BusinessIntro.h
-  td/telegram/BusinessManager.h
-  td/telegram/BusinessRecipients.h
-  td/telegram/BusinessWorkHours.h
-  td/telegram/CallActor.h
-  td/telegram/CallbackQueriesManager.h
-  td/telegram/CallDiscardReason.h
-  td/telegram/CallId.h
-  td/telegram/CallManager.h
-  td/telegram/ChainId.h
-  td/telegram/ChannelId.h
-  td/telegram/ChannelParticipantFilter.h
-  td/telegram/ChannelRecommendationManager.h
-  td/telegram/ChannelType.h
-  td/telegram/ChatId.h
-  td/telegram/ChatManager.h
-  td/telegram/ChatReactions.h
-  td/telegram/ClientActor.h
-  td/telegram/CommonDialogManager.h
-  td/telegram/ConfigManager.h
-  td/telegram/ConnectionState.h
-  td/telegram/ConnectionStateManager.h
-  td/telegram/Contact.h
-  td/telegram/CountryInfoManager.h
-  td/telegram/CustomEmojiId.h
-  td/telegram/DelayDispatcher.h
-  td/telegram/Dependencies.h
-  td/telegram/DeviceTokenManager.h
-  td/telegram/DhCache.h
-  td/telegram/DhConfig.h
-  td/telegram/DialogAction.h
-  td/telegram/DialogActionBar.h
-  td/telegram/DialogActionManager.h
-  td/telegram/DialogAdministrator.h
-  td/telegram/DialogBoostLinkInfo.h
-  td/telegram/DialogDate.h
-  td/telegram/DialogDb.h
-  td/telegram/DialogEventLog.h
-  td/telegram/DialogFilter.h
-  td/telegram/DialogFilterDialogInfo.h
-  td/telegram/DialogFilterId.h
-  td/telegram/DialogFilterInviteLink.h
-  td/telegram/DialogFilterManager.h
-  td/telegram/DialogId.h
-  td/telegram/DialogInviteLink.h
-  td/telegram/DialogInviteLinkManager.h
-  td/telegram/DialogListId.h
-  td/telegram/DialogLocation.h
-  td/telegram/DialogManager.h
-  td/telegram/DialogNotificationSettings.h
-  td/telegram/DialogParticipant.h
-  td/telegram/DialogParticipantFilter.h
-  td/telegram/DialogParticipantManager.h
-  td/telegram/DialogSource.h
-  td/telegram/Dimensions.h
-  td/telegram/DisallowedGiftsSettings.h
-  td/telegram/Document.h
-  td/telegram/DocumentsManager.h
-  td/telegram/DownloadManager.h
-  td/telegram/DownloadManagerCallback.h
-  td/telegram/DraftMessage.h
-  td/telegram/EmailVerification.h
-  td/telegram/EmojiGroup.h
-  td/telegram/EmojiGroupType.h
-  td/telegram/EmojiStatus.h
-  td/telegram/EncryptedFile.h
-  td/telegram/FactCheck.h
-  td/telegram/FileReferenceManager.h
-  td/telegram/files/FileBitmask.h
-  td/telegram/files/FileData.h
-  td/telegram/files/FileDb.h
-  td/telegram/files/FileDbId.h
-  td/telegram/files/FileDownloader.h
-  td/telegram/files/FileDownloadManager.h
-  td/telegram/files/FileEncryptionKey.h
-  td/telegram/files/FileFromBytes.h
-  td/telegram/files/FileGcParameters.h
-  td/telegram/files/FileGcWorker.h
-  td/telegram/files/FileGenerateManager.h
-  td/telegram/files/FileHashUploader.h
-  td/telegram/files/FileId.h
-  td/telegram/files/FileLoaderActor.h
-  td/telegram/files/FileLoaderUtils.h
-  td/telegram/files/FileLoadManager.h
-  td/telegram/files/FileLocation.h
-  td/telegram/files/FileManager.h
-  td/telegram/files/FileSourceId.h
-  td/telegram/files/FileStats.h
-  td/telegram/files/FileStatsWorker.h
-  td/telegram/files/FileType.h
-  td/telegram/files/FileUploader.h
-  td/telegram/files/FileUploadId.h
-  td/telegram/files/FileUploadManager.h
-  td/telegram/files/PartsManager.h
-  td/telegram/files/ResourceManager.h
-  td/telegram/files/ResourceState.h
-  td/telegram/FolderId.h
-  td/telegram/ForumTopic.h
-  td/telegram/ForumTopicEditedData.h
-  td/telegram/ForumTopicIcon.h
-  td/telegram/ForumTopicInfo.h
-  td/telegram/ForumTopicManager.h
-  td/telegram/Game.h
-  td/telegram/GameManager.h
-  td/telegram/GitCommitHash.h
-  td/telegram/GiveawayParameters.h
-  td/telegram/Global.h
-  td/telegram/GlobalPrivacySettings.h
-  td/telegram/GroupCallId.h
-  td/telegram/GroupCallManager.h
-  td/telegram/GroupCallParticipant.h
-  td/telegram/GroupCallParticipantOrder.h
-  td/telegram/GroupCallVideoPayload.h
-  td/telegram/HashtagHints.h
-  td/telegram/InlineMessageManager.h
-  td/telegram/InlineQueriesManager.h
-  td/telegram/InputBusinessChatLink.h
-  td/telegram/InputDialogId.h
-  td/telegram/InputGroupCallId.h
-  td/telegram/InputInvoice.h
-  td/telegram/InputMessageText.h
-  td/telegram/JsonValue.h
-  td/telegram/LabeledPricePart.h
-  td/telegram/LanguagePackManager.h
-  td/telegram/LinkManager.h
-  td/telegram/Location.h
-  td/telegram/logevent/LogEvent.h
-  td/telegram/logevent/LogEventHelper.h
-  td/telegram/logevent/SecretChatEvent.h
-  td/telegram/Logging.h
-  td/telegram/MediaArea.h
-  td/telegram/MediaAreaCoordinates.h
-  td/telegram/MessageContent.h
-  td/telegram/MessageContentType.h
-  td/telegram/MessageCopyOptions.h
-  td/telegram/MessageDb.h
-  td/telegram/MessageEffectId.h
-  td/telegram/MessageEntity.h
-  td/telegram/MessageExtendedMedia.h
-  td/telegram/MessageForwardInfo.h
-  td/telegram/MessageFullId.h
-  td/telegram/MessageId.h
-  td/telegram/MessageImportManager.h
-  td/telegram/MessageInputReplyTo.h
-  td/telegram/MessageLinkInfo.h
-  td/telegram/MessageOrigin.h
-  td/telegram/MessageQueryManager.h
-  td/telegram/MessageQuote.h
-  td/telegram/MessageReaction.h
-  td/telegram/MessageReactor.h
-  td/telegram/MessageReplyHeader.h
-  td/telegram/MessageReplyInfo.h
-  td/telegram/MessageSearchFilter.h
-  td/telegram/MessageSearchOffset.h
-  td/telegram/MessageSelfDestructType.h
-  td/telegram/MessageSender.h
-  td/telegram/MessagesInfo.h
-  td/telegram/MessagesManager.h
-  td/telegram/MessageSource.h
-  td/telegram/MessageThreadDb.h
-  td/telegram/MessageThreadInfo.h
-  td/telegram/MessageTtl.h
-  td/telegram/MessageViewer.h
-  td/telegram/MinChannel.h
-  td/telegram/misc.h
-  td/telegram/MissingInvitee.h
-  td/telegram/net/AuthDataShared.h
-  td/telegram/net/AuthKeyState.h
-  td/telegram/net/ConnectionCreator.h
-  td/telegram/net/DcAuthManager.h
-  td/telegram/net/DcId.h
-  td/telegram/net/DcOptions.h
-  td/telegram/net/DcOptionsSet.h
-  td/telegram/net/MtprotoHeader.h
-  td/telegram/net/NetActor.h
-  td/telegram/net/NetQuery.h
-  td/telegram/net/NetQueryCounter.h
-  td/telegram/net/NetQueryCreator.h
-  td/telegram/net/NetQueryDelayer.h
-  td/telegram/net/NetQueryDispatcher.h
-  td/telegram/net/NetQueryStats.h
-  td/telegram/net/NetQueryVerifier.h
-  td/telegram/net/NetStatsManager.h
-  td/telegram/net/NetType.h
-  td/telegram/net/Proxy.h
-  td/telegram/net/PublicRsaKeySharedCdn.h
-  td/telegram/net/PublicRsaKeySharedMain.h
-  td/telegram/net/PublicRsaKeyWatchdog.h
-  td/telegram/net/Session.h
-  td/telegram/net/SessionMultiProxy.h
-  td/telegram/net/SessionProxy.h
-  td/telegram/net/TempAuthKeyWatchdog.h
-  td/telegram/NewPasswordState.h
-  td/telegram/Notification.h
-  td/telegram/NotificationGroupFromDatabase.h
-  td/telegram/NotificationGroupId.h
-  td/telegram/NotificationGroupInfo.h
-  td/telegram/NotificationGroupKey.h
-  td/telegram/NotificationGroupType.h
-  td/telegram/NotificationId.h
-  td/telegram/NotificationManager.h
-  td/telegram/NotificationObjectFullId.h
-  td/telegram/NotificationObjectId.h
-  td/telegram/NotificationSettingsManager.h
-  td/telegram/NotificationSettingsScope.h
-  td/telegram/NotificationSound.h
-  td/telegram/NotificationSoundType.h
-  td/telegram/NotificationType.h
-  td/telegram/OnlineManager.h
-  td/telegram/OptionManager.h
-  td/telegram/OrderedMessage.h
-  td/telegram/OrderInfo.h
-  td/telegram/Outline.h
-  td/telegram/PaidReactionType.h
-  td/telegram/PasswordManager.h
-  td/telegram/Payments.h
-  td/telegram/PeerColor.h
-  td/telegram/PeopleNearbyManager.h
-  td/telegram/PhoneNumberManager.h
-  td/telegram/Photo.h
-  td/telegram/PhotoFormat.h
-  td/telegram/PhotoSize.h
-  td/telegram/PhotoSizeSource.h
-  td/telegram/PhotoSizeType.h
-  td/telegram/PollId.h
-  td/telegram/PollManager.h
-  td/telegram/Premium.h
-  td/telegram/PremiumGiftOption.h
-  td/telegram/PrivacyManager.h
-  td/telegram/PromoDataManager.h
-  td/telegram/PtsManager.h
-  td/telegram/PublicDialogType.h
-  td/telegram/QueryCombiner.h
-  td/telegram/QueryMerger.h
-  td/telegram/QuickReplyManager.h
-  td/telegram/QuickReplyMessageFullId.h
-  td/telegram/QuickReplyShortcutId.h
-  td/telegram/ReactionListType.h
-  td/telegram/ReactionManager.h
-  td/telegram/ReactionNotificationSettings.h
-  td/telegram/ReactionNotificationsFrom.h
-  td/telegram/ReactionType.h
-  td/telegram/ReactionUnavailabilityReason.h
-  td/telegram/RecentDialogList.h
-  td/telegram/ReferralProgramInfo.h
-  td/telegram/ReferralProgramManager.h
-  td/telegram/ReferralProgramParameters.h
-  td/telegram/ReferralProgramSortOrder.h
-  td/telegram/RepliedMessageInfo.h
-  td/telegram/ReplyMarkup.h
-  td/telegram/ReportReason.h
-  td/telegram/RequestActor.h
-  td/telegram/RequestedDialogType.h
-  td/telegram/Requests.h
-  td/telegram/RestrictionReason.h
-  td/telegram/SavedMessagesManager.h
-  td/telegram/SavedMessagesTopicId.h
-  td/telegram/ScheduledServerMessageId.h
-  td/telegram/ScopeNotificationSettings.h
-  td/telegram/SecretChatActor.h
-  td/telegram/SecretChatDb.h
-  td/telegram/SecretChatId.h
-  td/telegram/SecretChatLayer.h
-  td/telegram/SecretChatsManager.h
-  td/telegram/SecretInputMedia.h
-  td/telegram/SecureManager.h
-  td/telegram/SecureStorage.h
-  td/telegram/SecureValue.h
-  td/telegram/SendCodeHelper.h
-  td/telegram/SentEmailCode.h
-  td/telegram/SequenceDispatcher.h
-  td/telegram/ServerMessageId.h
-  td/telegram/SetWithPosition.h
-  td/telegram/SharedDialog.h
-  td/telegram/SpecialStickerSetType.h
-  td/telegram/SponsoredMessageManager.h
-  td/telegram/StarAmount.h
-  td/telegram/StarGift.h
-  td/telegram/StarGiftAttribute.h
-  td/telegram/StarGiftId.h
-  td/telegram/StarGiftManager.h
-  td/telegram/StarGiftSettings.h
-  td/telegram/StarManager.h
-  td/telegram/StarSubscription.h
-  td/telegram/StarSubscriptionPricing.h
-  td/telegram/StateManager.h
-  td/telegram/StatisticsManager.h
-  td/telegram/StickerFormat.h
-  td/telegram/StickerListType.h
-  td/telegram/StickerMaskPosition.h
-  td/telegram/StickerPhotoSize.h
-  td/telegram/StickerSetId.h
-  td/telegram/StickersManager.h
-  td/telegram/StickerType.h
-  td/telegram/StorageManager.h
-  td/telegram/StoryContent.h
-  td/telegram/StoryContentType.h
-  td/telegram/StoryDb.h
-  td/telegram/StoryForwardInfo.h
-  td/telegram/StoryFullId.h
-  td/telegram/StoryId.h
-  td/telegram/StoryInteractionInfo.h
-  td/telegram/StoryListId.h
-  td/telegram/StoryManager.h
-  td/telegram/StoryNotificationSettings.h
-  td/telegram/StoryStealthMode.h
-  td/telegram/StoryViewer.h
-  td/telegram/SuggestedAction.h
-  td/telegram/SuggestedActionManager.h
-  td/telegram/Support.h
-  td/telegram/SynchronousRequests.h
-  td/telegram/TargetDialogTypes.h
-  td/telegram/Td.h
-  td/telegram/TdCallback.h
-  td/telegram/TdDb.h
-  td/telegram/TermsOfService.h
-  td/telegram/TermsOfServiceManager.h
-  td/telegram/ThemeManager.h
-  td/telegram/ThemeSettings.h
-  td/telegram/TimeZoneManager.h
-  td/telegram/TopDialogCategory.h
-  td/telegram/TopDialogManager.h
-  td/telegram/TranscriptionInfo.h
-  td/telegram/TranscriptionManager.h
-  td/telegram/TranslationManager.h
-  td/telegram/UniqueId.h
-  td/telegram/UpdatesManager.h
-  td/telegram/UserId.h
-  td/telegram/UserManager.h
-  td/telegram/Usernames.h
-  td/telegram/UserPrivacySetting.h
-  td/telegram/UserPrivacySettingRule.h
-  td/telegram/UserStarGift.h
-  td/telegram/Venue.h
-  td/telegram/VerificationStatus.h
-  td/telegram/Version.h
-  td/telegram/VideoNotesManager.h
-  td/telegram/VideosManager.h
-  td/telegram/VoiceNotesManager.h
-  td/telegram/WebApp.h
-  td/telegram/WebAppManager.h
-  td/telegram/WebAppOpenParameters.h
-  td/telegram/WebPageBlock.h
-  td/telegram/WebPageId.h
-  td/telegram/WebPagesManager.h
-
-  td/telegram/AnimationsManager.hpp
-  td/telegram/AudiosManager.hpp
-  td/telegram/AuthManager.hpp
-  td/telegram/BackgroundInfo.hpp
-  td/telegram/BackgroundType.hpp
-  td/telegram/Birthdate.hpp
-  td/telegram/BotVerification.hpp
-  td/telegram/BotVerifierSettings.hpp
-  td/telegram/BusinessAwayMessage.hpp
-  td/telegram/BusinessAwayMessageSchedule.hpp
-  td/telegram/BusinessBotRights.hpp
-  td/telegram/BusinessConnectedBot.hpp
-  td/telegram/BusinessGreetingMessage.hpp
-  td/telegram/BusinessInfo.hpp
-  td/telegram/BusinessIntro.hpp
-  td/telegram/BusinessRecipients.hpp
-  td/telegram/BusinessWorkHours.hpp
-  td/telegram/ChatReactions.hpp
-  td/telegram/DialogFilter.hpp
-  td/telegram/DialogInviteLink.hpp
-  td/telegram/DialogNotificationSettings.hpp
-  td/telegram/Dimensions.hpp
-  td/telegram/DisallowedGiftsSettings.hpp
-  td/telegram/Document.hpp
-  td/telegram/DocumentsManager.hpp
-  td/telegram/DraftMessage.hpp
-  td/telegram/EmojiGroup.hpp
-  td/telegram/FactCheck.hpp
-  td/telegram/FileReferenceManager.hpp
-  td/telegram/files/FileData.hpp
-  td/telegram/files/FileId.hpp
-  td/telegram/files/FileLocation.hpp
-  td/telegram/files/FileManager.hpp
-  td/telegram/files/FileSourceId.hpp
-  td/telegram/ForumTopic.hpp
-  td/telegram/ForumTopicEditedData.hpp
-  td/telegram/ForumTopicIcon.hpp
-  td/telegram/ForumTopicInfo.hpp
-  td/telegram/Game.hpp
-  td/telegram/GiveawayParameters.hpp
-  td/telegram/InputInvoice.hpp
-  td/telegram/InputMessageText.hpp
-  td/telegram/MediaArea.hpp
-  td/telegram/MediaAreaCoordinates.hpp
-  td/telegram/MessageEntity.hpp
-  td/telegram/MessageExtendedMedia.hpp
-  td/telegram/MessageForwardInfo.hpp
-  td/telegram/MessageInputReplyTo.hpp
-  td/telegram/MessageOrigin.hpp
-  td/telegram/MessageQuote.hpp
-  td/telegram/MessageReaction.hpp
-  td/telegram/MessageReactor.hpp
-  td/telegram/MessageReplyInfo.hpp
-  td/telegram/MinChannel.hpp
-  td/telegram/NotificationGroupInfo.hpp
-  td/telegram/OrderInfo.hpp
-  td/telegram/PaidReactionType.hpp
-  td/telegram/Photo.hpp
-  td/telegram/PhotoSize.hpp
-  td/telegram/PhotoSizeSource.hpp
-  td/telegram/PhotoSizeType.hpp
-  td/telegram/PollId.hpp
-  td/telegram/PollManager.hpp
-  td/telegram/PremiumGiftOption.hpp
-  td/telegram/ReactionManager.hpp
-  td/telegram/ReactionNotificationSettings.hpp
-  td/telegram/ReactionNotificationsFrom.hpp
-  td/telegram/ReactionType.hpp
-  td/telegram/ReferralProgramInfo.hpp
-  td/telegram/ReferralProgramParameters.hpp
-  td/telegram/RepliedMessageInfo.hpp
-  td/telegram/ReplyMarkup.hpp
-  td/telegram/RequestedDialogType.hpp
-  td/telegram/ScopeNotificationSettings.hpp
-  td/telegram/SecureValue.hpp
-  td/telegram/SendCodeHelper.hpp
-  td/telegram/SharedDialog.hpp
-  td/telegram/StarAmount.hpp
-  td/telegram/StarGift.hpp
-  td/telegram/StarGiftAttribute.hpp
-  td/telegram/StarGiftId.hpp
-  td/telegram/StarGiftSettings.hpp
-  td/telegram/StarSubscriptionPricing.hpp
-  td/telegram/StickerMaskPosition.hpp
-  td/telegram/StickerPhotoSize.hpp
-  td/telegram/StickersManager.hpp
-  td/telegram/StoryForwardInfo.hpp
-  td/telegram/StoryInteractionInfo.hpp
-  td/telegram/StoryStealthMode.hpp
-  td/telegram/SuggestedAction.hpp
-  td/telegram/TermsOfService.hpp
-  td/telegram/ThemeSettings.hpp
-  td/telegram/TranscriptionInfo.hpp
-  td/telegram/VideoNotesManager.hpp
-  td/telegram/VideosManager.hpp
-  td/telegram/VoiceNotesManager.hpp
-  td/telegram/WebApp.hpp
-
-  ${TL_TD_AUTO_SOURCE}
-
-  td/tl/TlObject.h
-  td/tl/tl_object_parse.h
-  td/tl/tl_object_store.h
-
-  ${CMAKE_CURRENT_BINARY_DIR}/td/telegram/GitCommitHash.cpp
-)
-set(TDLIB_SOURCE
-  ${TDLIB_SOURCE_PART1}
-  ${TDLIB_SOURCE_PART2}
-)
-
-set(MEMPROF_SOURCE
-  memprof/memprof.cpp
-  memprof/memprof.h
-)
-
-set(MEMPROF_STAT_SOURCE
-  memprof/memprof_stat.cpp
-  memprof/memprof_stat.h
-)
-
-# LIBRARIES
-
-# memprof - simple library for memory usage profiling
-add_library(memprof STATIC ${MEMPROF_SOURCE})
-target_include_directories(memprof PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-target_link_libraries(memprof PRIVATE tdutils)
-if (MEMPROF)
-  target_compile_definitions(memprof PRIVATE -DUSE_MEMPROF=1)
-  if (MEMPROF STREQUAL "SAFE")
-    target_compile_definitions(memprof PRIVATE -DUSE_MEMPROF_SAFE=1)
-  elseif (MEMPROF STREQUAL "FAST")
-    target_compile_definitions(memprof PRIVATE -DUSE_MEMPROF_FAST=1)
-  elseif (NOT MEMPROF)
-    message(FATAL_ERROR "Unsupported MEMPROF value \"${MEMPROF}\"")
-  endif()
-endif()
-
-add_library(memprof_stat EXCLUDE_FROM_ALL STATIC ${MEMPROF_STAT_SOURCE})
-target_include_directories(memprof_stat PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-target_link_libraries(memprof_stat PRIVATE tdutils)
-
-
-add_library(tdapi STATIC ${TL_TD_API_SOURCE})
-target_include_directories(tdapi PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> INTERFACE $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>)
-target_link_libraries(tdapi PRIVATE tdutils)
-
-if (TD_ENABLE_JNI AND NOT ANDROID) # jni is available by default on Android
-  if (NOT JNI_FOUND)
-    find_package(JNI REQUIRED COMPONENTS JVM)
-  endif()
-  message(STATUS "Found JNI: ${JNI_INCLUDE_DIRS} ${JNI_LIBRARIES}")
-  target_include_directories(tdapi PUBLIC ${JAVA_INCLUDE_PATH} ${JAVA_INCLUDE_PATH2})
-  target_link_libraries(tdapi PUBLIC ${JAVA_JVM_LIBRARY})
-endif()
-
-if (NOT CMAKE_CROSSCOMPILING)
-  add_dependencies(tdapi tl_generate_common)
-endif()
-
-add_library(tdmtproto STATIC ${TD_MTPROTO_SOURCE})
-target_include_directories(tdmtproto PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>)
-target_include_directories(tdmtproto SYSTEM PRIVATE ${OPENSSL_INCLUDE_DIR})
-target_link_libraries(tdmtproto PUBLIC tdactor tdnet tdutils PRIVATE ${OPENSSL_CRYPTO_LIBRARY} ${CMAKE_DL_LIBS} ${ZLIB_LIBRARIES})
-if (WIN32)
-  if (MINGW)
-    target_link_libraries(tdmtproto PRIVATE ws2_32 mswsock crypt32)
-  else()
-    target_link_libraries(tdmtproto PRIVATE ws2_32 Mswsock Crypt32)
-  endif()
-endif()
-if (NOT CMAKE_CROSSCOMPILING)
-  add_dependencies(tdmtproto tl_generate_mtproto)
-endif()
-
-# tdcore - internal TDLib interface
-if (MSVC AND TD_ENABLE_LTO)
-  add_library(tdcore_part1 STATIC ${TDLIB_SOURCE_PART1})
-  target_include_directories(tdcore_part1 PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>)
-  target_link_libraries(tdcore_part1 PUBLIC tdapi tdnet tddb tdactor tde2e tdutils PRIVATE tdmtproto)
-
-  add_library(tdcore_part2 STATIC ${TDLIB_SOURCE_PART2})
-  target_include_directories(tdcore_part2 PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>)
-  target_link_libraries(tdcore_part2 PUBLIC tdapi tdnet tddb tdactor tde2e tdutils PRIVATE tdmtproto)
-
-  add_library(tdcore INTERFACE)
-  target_link_libraries(tdcore INTERFACE tdcore_part1 tdcore_part2)
-
-  set(TD_CORE_PART_TARGETS tdcore_part1 tdcore_part2)
-else()
-  add_library(tdcore STATIC ${TDLIB_SOURCE})
-  target_include_directories(tdcore PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>)
-  target_link_libraries(tdcore PUBLIC tdapi tdnet tddb tdactor tde2e tdutils PRIVATE tdmtproto)
-
-  set(TD_CORE_PART_TARGETS)
-endif()
-
-if (NOT CMAKE_CROSSCOMPILING)
-  add_dependencies(tdcore tl_generate_common)
-  if (TD_ENABLE_JNI)
-    add_dependencies(tdcore td_generate_java_api)
-  endif()
-  if (TD_ENABLE_DOTNET)
-    add_dependencies(tdcore remove_cpp_documentation)
-  endif()
-endif()
-
-add_library(tdclient STATIC td/telegram/Client.cpp td/telegram/Client.h td/telegram/Log.cpp td/telegram/Log.h)
-target_include_directories(tdclient PUBLIC
-  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-)
-target_link_libraries(tdclient PUBLIC tdapi PRIVATE tdcore)
-
-if (TD_ENABLE_DOTNET)
-  add_library(tddotnet SHARED
-    td/telegram/ClientDotNet.cpp
-    td/telegram/LogDotNet.cpp
-    ${TL_DOTNET_SCHEME_SOURCE}
-  )
-  set_target_properties(tddotnet PROPERTIES OUTPUT_NAME Telegram.Td)
-  target_link_libraries(tddotnet PRIVATE tdclient tdutils)
-  target_include_directories(tddotnet PUBLIC
-    $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>
-  )
-  if (NOT CMAKE_CROSSCOMPILING)
-    add_dependencies(tddotnet generate_dotnet_api)
-  endif()
-
-  target_compile_options(tddotnet PRIVATE "/doc")
-  if (CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
-    set_target_properties(tddotnet PROPERTIES VS_WINRT_COMPONENT "true")
-    target_compile_options(tddotnet PUBLIC "/ZW")
-  else()
-    set_target_properties(tddotnet PROPERTIES COMPILE_FLAGS "/GR /clr")
-    target_compile_options(tddotnet PUBLIC "/EHa")
-  endif()
-endif()
-
-# tdc - TDLib interface in pure C
-add_library(tdc STATIC EXCLUDE_FROM_ALL ${TL_C_SCHEME_SOURCE} td/telegram/td_c_client.cpp td/telegram/td_c_client.h)
-target_include_directories(tdc PUBLIC
-  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-  $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>)
-target_link_libraries(tdc PRIVATE tdclient tdutils)
-if (NOT CMAKE_CROSSCOMPILING)
-  add_dependencies(tdc tl_generate_c)
-endif()
-
-add_library(tdjson_private STATIC ${TL_TD_JSON_SOURCE} td/telegram/ClientJson.cpp td/telegram/ClientJson.h)
-target_include_directories(tdjson_private PUBLIC
-  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
-  $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>)
-target_link_libraries(tdjson_private PUBLIC tdclient tdutils)
-if (NOT CMAKE_CROSSCOMPILING)
-  add_dependencies(tdjson_private tl_generate_common tl_generate_json)
-  if (TD_ENABLE_DOTNET)
-    add_dependencies(tdjson_private remove_cpp_documentation)
-  endif()
-endif()
-
-set(TD_JSON_HEADERS td/telegram/td_json_client.h td/telegram/td_log.h)
-set(TD_JSON_SOURCE td/telegram/td_json_client.cpp td/telegram/td_log.cpp)
-
-include(GenerateExportHeader)
-
-add_library(tdjson SHARED ${TD_JSON_SOURCE} ${TD_JSON_HEADERS})
-target_link_libraries(tdjson PRIVATE tdjson_private)
-generate_export_header(tdjson EXPORT_FILE_NAME ${CMAKE_CURRENT_BINARY_DIR}/td/telegram/tdjson_export.h)
-target_include_directories(tdjson PUBLIC
-  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-if (APPLE)
-  set_target_properties(tdjson PROPERTIES LINK_FLAGS "-Wl,-exported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/tdclientjson_export_list")
-endif()
-
-add_library(tdjson_static STATIC ${TD_JSON_SOURCE} ${TD_JSON_HEADERS})
-target_link_libraries(tdjson_static PRIVATE tdjson_private)
-target_compile_definitions(tdjson_static PUBLIC TDJSON_STATIC_DEFINE)
-target_include_directories(tdjson_static PUBLIC
-  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
-  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-
-# EXECUTABLES
-if (EMSCRIPTEN)
-  set(TD_EMSCRIPTEN_SRC td/telegram/td_emscripten.cpp)
-  add_executable(${TD_EMSCRIPTEN} ${TD_EMSCRIPTEN_SRC})
-  target_include_directories(${TD_EMSCRIPTEN} PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-  target_link_libraries(${TD_EMSCRIPTEN} PRIVATE tdjson_static tdactor)
-endif()
-
-if (NOT CMAKE_CROSSCOMPILING)
-  add_executable(tg_cli td/telegram/cli.cpp ${TL_TD_JSON_SOURCE})
-
-  if (NOT READLINE_FOUND)
-    find_package(Readline QUIET)
-  endif()
-  if (READLINE_FOUND)
-    message(STATUS "Found Readline: ${READLINE_INCLUDE_DIR} ${READLINE_LIBRARY}")
-    if (NOT USABLE_READLINE_FOUND)
-      set(CMAKE_REQUIRED_INCLUDES "${READLINE_INCLUDE_DIR}")
-      set(CMAKE_REQUIRED_LIBRARIES "${READLINE_LIBRARY}")
-      include(CheckCXXSourceCompiles)
-      unset(USABLE_READLINE_FOUND CACHE)
-      check_cxx_source_compiles("#include <stdio.h>\n#include <readline/readline.h>\nint main() { rl_free(0); }" USABLE_READLINE_FOUND)
-      if (NOT USABLE_READLINE_FOUND)
-        message(STATUS "Found Readline is too old, ignore it (this is NOT an error)")
-        unset(READLINE_INCLUDE_DIR CACHE)
-        unset(READLINE_LIBRARY CACHE)
-      endif()
-    endif()
-    if (USABLE_READLINE_FOUND)
-      target_link_libraries(tg_cli PRIVATE ${READLINE_LIBRARY})
-      target_include_directories(tg_cli SYSTEM PRIVATE ${READLINE_INCLUDE_DIR})
-      target_compile_definitions(tg_cli PRIVATE -DUSE_READLINE=1)
-    endif()
-  endif()
-  target_link_libraries(tg_cli PRIVATE memprof tdclient tdcore)
-  add_dependencies(tg_cli tl_generate_json)
-endif()
-
-# Exported libraries
-add_library(TdStatic INTERFACE)
-target_link_libraries(TdStatic INTERFACE tdclient)
-
-add_library(TdJson INTERFACE)
-target_link_libraries(TdJson INTERFACE tdjson)
-
-add_library(TdJsonStatic INTERFACE)
-target_link_libraries(TdJsonStatic INTERFACE tdjson_static)
-
-add_library(Td::TdStatic ALIAS TdStatic)
-add_library(Td::TdJson ALIAS TdJson)
-add_library(Td::TdJsonStatic ALIAS TdJsonStatic)
-
-set(INSTALL_TARGETS tdjson TdJson)
-set(INSTALL_STATIC_TARGETS tdjson_static TdJsonStatic tdjson_private "${TD_CORE_PART_TARGETS}" tdcore tdmtproto tdclient TdStatic tdapi)
-
-if (TD_INSTALL_SHARED_LIBRARIES)
-  install(TARGETS ${INSTALL_TARGETS} EXPORT TdTargets
-    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
-    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
-  )
-endif()
-
-if (TD_INSTALL_STATIC_LIBRARIES)
-  install(TARGETS ${INSTALL_STATIC_TARGETS} EXPORT TdStaticTargets
-    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
-  )
-endif()
-
-# generate pkg-config files
-include(GeneratePkgConfig)
-
-if (TD_INSTALL_STATIC_LIBRARIES)
-  generate_pkgconfig(tdutils "Telegram Library - Utils")
-  generate_pkgconfig(tdactor "Telegram Library - Actor")
-  generate_pkgconfig(tde2e "Telegram Library - E2E")
-  generate_pkgconfig(tdnet "Telegram Library - Net")
-  generate_pkgconfig(tdsqlite "Telegram Library - SQLite")
-  generate_pkgconfig(tddb "Telegram Library - Database")
-  if (MEMPROF)
-    # generate_pkgconfig(memprof "memprof - simple library for memory usage profiling")
-  endif()
-  generate_pkgconfig(tdmtproto "Telegram Library - MTProto implementation")
-  generate_pkgconfig(tdcore "Telegram Library - Core")
-  generate_pkgconfig(tdclient "Telegram Library - C++ Interface")
-  if (TD_ENABLE_DOTNET)
-    # generate_pkgconfig(tddotnet "Telegram Library - C# Interface")
-  endif()
-  # generate_pkgconfig(tdc "Telegram Library - C interface")
-  generate_pkgconfig(tdapi "Telegram Library - API")
-  generate_pkgconfig(tdjson_private "Telegram Library - JSON interface (private)")
-  generate_pkgconfig(tdjson_static "Telegram Library - JSON interface (static)")
-endif()
-if (TD_INSTALL_SHARED_LIBRARIES)
-  generate_pkgconfig(tdjson "Telegram Library - JSON interface (shared)")
-endif()
-
-if (TD_INSTALL_SHARED_LIBRARIES)
-  install(EXPORT TdTargets
-    FILE TdTargets.cmake
-    NAMESPACE Td::
-    DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/Td"
-  )
-endif()
-
-if (TD_INSTALL_STATIC_LIBRARIES)
-  install(EXPORT TdStaticTargets
-    FILE TdStaticTargets.cmake
-    NAMESPACE Td::
-    DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/Td"
-  )
-endif()
-
-if (TD_INSTALL_SHARED_LIBRARIES OR TD_INSTALL_STATIC_LIBRARIES)
-  # Install tdjson/tdjson_static:
-  install(FILES ${TD_JSON_HEADERS} "${CMAKE_CURRENT_BINARY_DIR}/td/telegram/tdjson_export.h" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/td/telegram")
-endif()
-if (TD_INSTALL_STATIC_LIBRARIES)
-  # Install tdclient:
-  install(FILES td/telegram/Client.h td/telegram/Log.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/td/telegram")
-  # Install tdapi:
-  install(FILES td/tl/TlObject.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/td/tl")
-  install(FILES "${TL_TD_AUTO_INCLUDE_DIR}/td/telegram/td_api.h" "${TL_TD_AUTO_INCLUDE_DIR}/td/telegram/td_api.hpp" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/td/telegram")
-endif()
-if (TD_ENABLE_JNI)
-  install(FILES td/tl/tl_jni_object.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/td/tl")
-endif()
-if (MSVC AND VCPKG_TOOLCHAIN)
-  install(DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>/" DESTINATION "${CMAKE_INSTALL_BINDIR}" FILES_MATCHING PATTERN "*.dll")
-endif()
-
-include(CMakePackageConfigHelpers)
-write_basic_package_version_file("TdConfigVersion.cmake"
-  VERSION "${TDLib_VERSION}"
-  COMPATIBILITY ExactVersion
-)
-install(FILES "TdConfig.cmake" "${CMAKE_CURRENT_BINARY_DIR}/TdConfigVersion.cmake"
-  DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/Td"
-)
-
-# Add SOVERSION to shared libraries
-set_property(TARGET tdjson PROPERTY SOVERSION "${TDLib_VERSION}")
diff --git a/third-party/td/td/Doxyfile b/third-party/td/td/Doxyfile
deleted file mode 100644
index e9e26e2d5d..0000000000
--- a/third-party/td/td/Doxyfile
+++ /dev/null
@@ -1,2473 +0,0 @@
-# Doxyfile 1.8.13
-
-# This file describes the settings to be used by the documentation system
-# doxygen (www.doxygen.org) for a project.
-#
-# All text after a double hash (##) is considered a comment and is placed in
-# front of the TAG it is preceding.
-#
-# All text after a single hash (#) is considered a comment and will be ignored.
-# The format is:
-# TAG = value [value, ...]
-# For lists, items can also be appended using:
-# TAG += value [value, ...]
-# Values that contain spaces should be placed between quotes (\" \").
-
-#---------------------------------------------------------------------------
-# Project related configuration options
-#---------------------------------------------------------------------------
-
-# This tag specifies the encoding used for all characters in the config file
-# that follow. The default is UTF-8 which is also the encoding used for all text
-# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
-# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
-# for the list of possible encodings.
-# The default value is: UTF-8.
-
-DOXYFILE_ENCODING      = UTF-8
-
-# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
-# double-quotes, unless you are using Doxywizard) that should identify the
-# project for which the documentation is generated. This name is used in the
-# title of most generated pages and in a few other places.
-# The default value is: My Project.
-
-PROJECT_NAME           = "TDLib"
-
-# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
-# could be handy for archiving the generated documentation or if some version
-# control system is used.
-
-PROJECT_NUMBER         =
-
-# Using the PROJECT_BRIEF tag one can provide an optional one line description
-# for a project that appears at the top of each page and should give viewer a
-# quick idea about the purpose of the project. Keep the description short.
-
-PROJECT_BRIEF          =
-
-# With the PROJECT_LOGO tag one can specify a logo or an icon that is included
-# in the documentation. The maximum height of the logo should not exceed 55
-# pixels and the maximum width should not exceed 200 pixels. Doxygen will copy
-# the logo to the output directory.
-
-PROJECT_LOGO           =
-
-# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
-# into which the generated documentation will be written. If a relative path is
-# entered, it will be relative to the location where doxygen was started. If
-# left blank the current directory will be used.
-
-OUTPUT_DIRECTORY       = "docs"
-
-# If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
-# directories (in 2 levels) under the output directory of each output format and
-# will distribute the generated files over these directories. Enabling this
-# option can be useful when feeding doxygen a huge amount of source files, where
-# putting all generated files in the same directory would otherwise causes
-# performance problems for the file system.
-# The default value is: NO.
-
-CREATE_SUBDIRS         = NO
-
-# If the ALLOW_UNICODE_NAMES tag is set to YES, doxygen will allow non-ASCII
-# characters to appear in the names of generated files. If set to NO, non-ASCII
-# characters will be escaped, for example _xE3_x81_x84 will be used for Unicode
-# U+3044.
-# The default value is: NO.
-
-ALLOW_UNICODE_NAMES    = NO
-
-# The OUTPUT_LANGUAGE tag is used to specify the language in which all
-# documentation generated by doxygen is written. Doxygen will use this
-# information to generate all constant output in the proper language.
-# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
-# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
-# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
-# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
-# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
-# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
-# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
-# Ukrainian and Vietnamese.
-# The default value is: English.
-
-OUTPUT_LANGUAGE        = English
-
-# If the BRIEF_MEMBER_DESC tag is set to YES, doxygen will include brief member
-# descriptions after the members that are listed in the file and class
-# documentation (similar to Javadoc). Set to NO to disable this.
-# The default value is: YES.
-
-BRIEF_MEMBER_DESC      = YES
-
-# If the REPEAT_BRIEF tag is set to YES, doxygen will prepend the brief
-# description of a member or function before the detailed description
-#
-# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
-# brief descriptions will be completely suppressed.
-# The default value is: YES.
-
-REPEAT_BRIEF           = YES
-
-# This tag implements a quasi-intelligent brief description abbreviator that is
-# used to form the text in various listings. Each string in this list, if found
-# as the leading text of the brief description, will be stripped from the text
-# and the result, after processing the whole list, is used as the annotated
-# text. Otherwise, the brief description is used as-is. If left blank, the
-# following values are used ($name is automatically replaced with the name of
-# the entity):The $name class, The $name widget, The $name file, is, provides,
-# specifies, contains, represents, a, an and the.
-
-ABBREVIATE_BRIEF       = "The $name class" \
-                         "The $name widget" \
-                         "The $name file" \
-                         is \
-                         provides \
-                         specifies \
-                         contains \
-                         represents \
-                         a \
-                         an \
-                         the
-
-# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
-# doxygen will generate a detailed section even if there is only a brief
-# description.
-# The default value is: NO.
-
-ALWAYS_DETAILED_SEC    = NO
-
-# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
-# inherited members of a class in the documentation of that class as if those
-# members were ordinary class members. Constructors, destructors and assignment
-# operators of the base classes will not be shown.
-# The default value is: NO.
-
-INLINE_INHERITED_MEMB  = NO
-
-# If the FULL_PATH_NAMES tag is set to YES, doxygen will prepend the full path
-# before files name in the file list and in the header files. If set to NO the
-# shortest path that makes the file name unique will be used
-# The default value is: YES.
-
-FULL_PATH_NAMES        = YES
-
-# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
-# Stripping is only done if one of the specified strings matches the left-hand
-# part of the path. The tag can be used to show relative paths in the file list.
-# If left blank the directory from which doxygen is run is used as the path to
-# strip.
-#
-# Note that you can specify absolute paths here, but also relative paths, which
-# will be relative from the directory where doxygen is started.
-# This tag requires that the tag FULL_PATH_NAMES is set to YES.
-
-STRIP_FROM_PATH        =
-
-# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
-# path mentioned in the documentation of a class, which tells the reader which
-# header file to include in order to use a class. If left blank only the name of
-# the header file containing the class definition is used. Otherwise one should
-# specify the list of include paths that are normally passed to the compiler
-# using the -I flag.
-
-STRIP_FROM_INC_PATH    = td/generate/auto/ .
-
-# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
-# less readable) file names. This can be useful is your file systems doesn't
-# support long names like on DOS, Mac, or CD-ROM.
-# The default value is: NO.
-
-SHORT_NAMES            = NO
-
-# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
-# first line (until the first dot) of a Javadoc-style comment as the brief
-# description. If set to NO, the Javadoc-style will behave just like regular Qt-
-# style comments (thus requiring an explicit @brief command for a brief
-# description.)
-# The default value is: NO.
-
-JAVADOC_AUTOBRIEF      = NO
-
-# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
-# line (until the first dot) of a Qt-style comment as the brief description. If
-# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
-# requiring an explicit \brief command for a brief description.)
-# The default value is: NO.
-
-QT_AUTOBRIEF           = NO
-
-# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
-# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
-# a brief description. This used to be the default behavior. The new default is
-# to treat a multi-line C++ comment block as a detailed description. Set this
-# tag to YES if you prefer the old behavior instead.
-#
-# Note that setting this tag to YES also means that rational rose comments are
-# not recognized any more.
-# The default value is: NO.
-
-MULTILINE_CPP_IS_BRIEF = NO
-
-# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
-# documentation from any documented member that it re-implements.
-# The default value is: YES.
-
-INHERIT_DOCS           = YES
-
-# If the SEPARATE_MEMBER_PAGES tag is set to YES then doxygen will produce a new
-# page for each member. If set to NO, the documentation of a member will be part
-# of the file/class/namespace that contains it.
-# The default value is: NO.
-
-SEPARATE_MEMBER_PAGES  = NO
-
-# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
-# uses this value to replace tabs by spaces in code fragments.
-# Minimum value: 1, maximum value: 16, default value: 4.
-
-TAB_SIZE               = 4
-
-# This tag can be used to specify a number of aliases that act as commands in
-# the documentation. An alias has the form:
-# name=value
-# For example adding
-# "sideeffect=@par Side Effects:\n"
-# will allow you to put the command \sideeffect (or @sideeffect) in the
-# documentation, which will result in a user-defined paragraph with heading
-# "Side Effects:". You can put \n's in the value part of an alias to insert
-# newlines.
-
-ALIASES                =
-
-# This tag can be used to specify a number of word-keyword mappings (TCL only).
-# A mapping has the form "name=value". For example adding "class=itcl::class"
-# will allow you to use the command class in the itcl::class meaning.
-
-TCL_SUBST              =
-
-# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
-# only. Doxygen will then generate output that is more tailored for C. For
-# instance, some of the names that are used will be different. The list of all
-# members will be omitted, etc.
-# The default value is: NO.
-
-OPTIMIZE_OUTPUT_FOR_C  = NO
-
-# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
-# Python sources only. Doxygen will then generate output that is more tailored
-# for that language. For instance, namespaces will be presented as packages,
-# qualified scopes will look different, etc.
-# The default value is: NO.
-
-OPTIMIZE_OUTPUT_JAVA   = NO
-
-# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
-# sources. Doxygen will then generate output that is tailored for Fortran.
-# The default value is: NO.
-
-OPTIMIZE_FOR_FORTRAN   = NO
-
-# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
-# sources. Doxygen will then generate output that is tailored for VHDL.
-# The default value is: NO.
-
-OPTIMIZE_OUTPUT_VHDL   = NO
-
-# Doxygen selects the parser to use depending on the extension of the files it
-# parses. With this tag you can assign which parser to use for a given
-# extension. Doxygen has a built-in mapping, but you can override or extend it
-# using this tag. The format is ext=language, where ext is a file extension, and
-# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
-# C#, C, C++, D, PHP, Objective-C, Python, Fortran (fixed format Fortran:
-# FortranFixed, free formatted Fortran: FortranFree, unknown formatted Fortran:
-# Fortran. In the later case the parser tries to guess whether the code is fixed
-# or free formatted code, this is the default for Fortran type files), VHDL. For
-# instance to make doxygen treat .inc files as Fortran files (default is PHP),
-# and .f files as C (default is Fortran), use: inc=Fortran f=C.
-#
-# Note: For files without extension you can use no_extension as a placeholder.
-#
-# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
-# the files are not read by doxygen.
-
-EXTENSION_MAPPING      =
-
-# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
-# according to the Markdown format, which allows for more readable
-# documentation. See http://daringfireball.net/projects/markdown/ for details.
-# The output of markdown processing is further processed by doxygen, so you can
-# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
-# case of backward compatibilities issues.
-# The default value is: YES.
-
-MARKDOWN_SUPPORT       = YES
-
-# When the TOC_INCLUDE_HEADINGS tag is set to a non-zero value, all headings up
-# to that level are automatically included in the table of contents, even if
-# they do not have an id attribute.
-# Note: This feature currently applies only to Markdown headings.
-# Minimum value: 0, maximum value: 99, default value: 0.
-# This tag requires that the tag MARKDOWN_SUPPORT is set to YES.
-
-TOC_INCLUDE_HEADINGS   = 0
-
-# When enabled doxygen tries to link words that correspond to documented
-# classes, or namespaces to their corresponding documentation. Such a link can
-# be prevented in individual cases by putting a % sign in front of the word or
-# globally by setting AUTOLINK_SUPPORT to NO.
-# The default value is: YES.
-
-AUTOLINK_SUPPORT       = YES
-
-# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
-# to include (a tag file for) the STL sources as input, then you should set this
-# tag to YES in order to let doxygen match functions declarations and
-# definitions whose arguments contain STL classes (e.g. func(std::string);
-# versus func(std::string) {}). This also make the inheritance and collaboration
-# diagrams that involve STL classes more complete and accurate.
-# The default value is: NO.
-
-BUILTIN_STL_SUPPORT    = YES
-
-# If you use Microsoft's C++/CLI language, you should set this option to YES to
-# enable parsing support.
-# The default value is: NO.
-
-CPP_CLI_SUPPORT        = NO
-
-# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
-# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
-# will parse them like normal C++ but will assume all classes use public instead
-# of private inheritance when no explicit protection keyword is present.
-# The default value is: NO.
-
-SIP_SUPPORT            = NO
-
-# For Microsoft's IDL there are propget and propput attributes to indicate
-# getter and setter methods for a property. Setting this option to YES will make
-# doxygen to replace the get and set methods by a property in the documentation.
-# This will only work if the methods are indeed getting or setting a simple
-# type. If this is not the case, or you want to show the methods anyway, you
-# should set this option to NO.
-# The default value is: YES.
-
-IDL_PROPERTY_SUPPORT   = YES
-
-# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
-# tag is set to YES then doxygen will reuse the documentation of the first
-# member in the group (if any) for the other members of the group. By default
-# all members of a group must be documented explicitly.
-# The default value is: NO.
-
-DISTRIBUTE_GROUP_DOC   = NO
-
-# If one adds a struct or class to a group and this option is enabled, then also
-# any nested class or struct is added to the same group. By default this option
-# is disabled and one has to add nested compounds explicitly via \ingroup.
-# The default value is: NO.
-
-GROUP_NESTED_COMPOUNDS = NO
-
-# Set the SUBGROUPING tag to YES to allow class member groups of the same type
-# (for instance a group of public functions) to be put as a subgroup of that
-# type (e.g. under the Public Functions section). Set it to NO to prevent
-# subgrouping. Alternatively, this can be done per class using the
-# \nosubgrouping command.
-# The default value is: YES.
-
-SUBGROUPING            = YES
-
-# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
-# are shown inside the group in which they are included (e.g. using \ingroup)
-# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
-# and RTF).
-#
-# Note that this feature does not work in combination with
-# SEPARATE_MEMBER_PAGES.
-# The default value is: NO.
-
-INLINE_GROUPED_CLASSES = NO
-
-# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
-# with only public data fields or simple typedef fields will be shown inline in
-# the documentation of the scope in which they are defined (i.e. file,
-# namespace, or group documentation), provided this scope is documented. If set
-# to NO, structs, classes, and unions are shown on a separate page (for HTML and
-# Man pages) or section (for LaTeX and RTF).
-# The default value is: NO.
-
-INLINE_SIMPLE_STRUCTS  = NO
-
-# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
-# enum is documented as struct, union, or enum with the name of the typedef. So
-# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
-# with name TypeT. When disabled the typedef will appear as a member of a file,
-# namespace, or class. And the struct will be named TypeS. This can typically be
-# useful for C code in case the coding convention dictates that all compound
-# types are typedef'ed and only the typedef is referenced, never the tag name.
-# The default value is: NO.
-
-TYPEDEF_HIDES_STRUCT   = NO
-
-# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
-# cache is used to resolve symbols given their name and scope. Since this can be
-# an expensive process and often the same symbol appears multiple times in the
-# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
-# doxygen will become slower. If the cache is too large, memory is wasted. The
-# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
-# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
-# symbols. At the end of a run doxygen will report the cache usage and suggest
-# the optimal cache size from a speed point of view.
-# Minimum value: 0, maximum value: 9, default value: 0.
-
-LOOKUP_CACHE_SIZE      = 0
-
-#---------------------------------------------------------------------------
-# Build related configuration options
-#---------------------------------------------------------------------------
-
-# If the EXTRACT_ALL tag is set to YES, doxygen will assume all entities in
-# documentation are documented, even if no documentation was available. Private
-# class members and static file members will be hidden unless the
-# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
-# Note: This will also disable the warnings about undocumented members that are
-# normally produced when WARNINGS is set to YES.
-# The default value is: NO.
-
-EXTRACT_ALL            = NO
-
-# If the EXTRACT_PRIVATE tag is set to YES, all private members of a class will
-# be included in the documentation.
-# The default value is: NO.
-
-EXTRACT_PRIVATE        = NO
-
-# If the EXTRACT_PACKAGE tag is set to YES, all members with package or internal
-# scope will be included in the documentation.
-# The default value is: NO.
-
-EXTRACT_PACKAGE        = NO
-
-# If the EXTRACT_STATIC tag is set to YES, all static members of a file will be
-# included in the documentation.
-# The default value is: NO.
-
-EXTRACT_STATIC         = NO
-
-# If the EXTRACT_LOCAL_CLASSES tag is set to YES, classes (and structs) defined
-# locally in source files will be included in the documentation. If set to NO,
-# only classes defined in header files are included. Does not have any effect
-# for Java sources.
-# The default value is: YES.
-
-EXTRACT_LOCAL_CLASSES  = YES
-
-# This flag is only useful for Objective-C code. If set to YES, local methods,
-# which are defined in the implementation section but not in the interface are
-# included in the documentation. If set to NO, only methods in the interface are
-# included.
-# The default value is: NO.
-
-EXTRACT_LOCAL_METHODS  = NO
-
-# If this flag is set to YES, the members of anonymous namespaces will be
-# extracted and appear in the documentation as a namespace called
-# 'anonymous_namespace{file}', where file will be replaced with the base name of
-# the file that contains the anonymous namespace. By default anonymous namespace
-# are hidden.
-# The default value is: NO.
-
-EXTRACT_ANON_NSPACES   = NO
-
-# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
-# undocumented members inside documented classes or files. If set to NO these
-# members will be included in the various overviews, but no documentation
-# section is generated. This option has no effect if EXTRACT_ALL is enabled.
-# The default value is: NO.
-
-HIDE_UNDOC_MEMBERS     = NO
-
-# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
-# undocumented classes that are normally visible in the class hierarchy. If set
-# to NO, these classes will be included in the various overviews. This option
-# has no effect if EXTRACT_ALL is enabled.
-# The default value is: NO.
-
-HIDE_UNDOC_CLASSES     = NO
-
-# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
-# (class|struct|union) declarations. If set to NO, these declarations will be
-# included in the documentation.
-# The default value is: NO.
-
-HIDE_FRIEND_COMPOUNDS  = NO
-
-# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
-# documentation blocks found inside the body of a function. If set to NO, these
-# blocks will be appended to the function's detailed documentation block.
-# The default value is: NO.
-
-HIDE_IN_BODY_DOCS      = NO
-
-# The INTERNAL_DOCS tag determines if documentation that is typed after a
-# \internal command is included. If the tag is set to NO then the documentation
-# will be excluded. Set it to YES to include the internal documentation.
-# The default value is: NO.
-
-INTERNAL_DOCS          = NO
-
-# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
-# names in lower-case letters. If set to YES, upper-case letters are also
-# allowed. This is useful if you have classes or files whose names only differ
-# in case and if your file system supports case sensitive file names. Windows
-# and Mac users are advised to set this option to NO.
-# The default value is: system dependent.
-
-CASE_SENSE_NAMES       = NO
-
-# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
-# their full class and namespace scopes in the documentation. If set to YES, the
-# scope will be hidden.
-# The default value is: NO.
-
-HIDE_SCOPE_NAMES       = NO
-
-# If the HIDE_COMPOUND_REFERENCE tag is set to NO (default) then doxygen will
-# append additional text to a page's title, such as Class Reference. If set to
-# YES the compound reference will be hidden.
-# The default value is: NO.
-
-HIDE_COMPOUND_REFERENCE= NO
-
-# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
-# the files that are included by a file in the documentation of that file.
-# The default value is: YES.
-
-SHOW_INCLUDE_FILES     = YES
-
-# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
-# grouped member an include statement to the documentation, telling the reader
-# which file to include in order to use the member.
-# The default value is: NO.
-
-SHOW_GROUPED_MEMB_INC  = NO
-
-# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
-# files with double quotes in the documentation rather than with sharp brackets.
-# The default value is: NO.
-
-FORCE_LOCAL_INCLUDES   = NO
-
-# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
-# documentation for inline members.
-# The default value is: YES.
-
-INLINE_INFO            = YES
-
-# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
-# (detailed) documentation of file and class members alphabetically by member
-# name. If set to NO, the members will appear in declaration order.
-# The default value is: YES.
-
-SORT_MEMBER_DOCS       = YES
-
-# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
-# descriptions of file, namespace and class members alphabetically by member
-# name. If set to NO, the members will appear in declaration order. Note that
-# this will also influence the order of the classes in the class list.
-# The default value is: NO.
-
-SORT_BRIEF_DOCS        = NO
-
-# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
-# (brief and detailed) documentation of class members so that constructors and
-# destructors are listed first. If set to NO the constructors will appear in the
-# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
-# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
-# member documentation.
-# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
-# detailed member documentation.
-# The default value is: NO.
-
-SORT_MEMBERS_CTORS_1ST = NO
-
-# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
-# of group names into alphabetical order. If set to NO the group names will
-# appear in their defined order.
-# The default value is: NO.
-
-SORT_GROUP_NAMES       = NO
-
-# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
-# fully-qualified names, including namespaces. If set to NO, the class list will
-# be sorted only by class name, not including the namespace part.
-# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
-# Note: This option applies only to the class list, not to the alphabetical
-# list.
-# The default value is: NO.
-
-SORT_BY_SCOPE_NAME     = NO
-
-# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
-# type resolution of all parameters of a function it will reject a match between
-# the prototype and the implementation of a member function even if there is
-# only one candidate or it is obvious which candidate to choose by doing a
-# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
-# accept a match between prototype and implementation in such cases.
-# The default value is: NO.
-
-STRICT_PROTO_MATCHING  = NO
-
-# The GENERATE_TODOLIST tag can be used to enable (YES) or disable (NO) the todo
-# list. This list is created by putting \todo commands in the documentation.
-# The default value is: YES.
-
-GENERATE_TODOLIST      = YES
-
-# The GENERATE_TESTLIST tag can be used to enable (YES) or disable (NO) the test
-# list. This list is created by putting \test commands in the documentation.
-# The default value is: YES.
-
-GENERATE_TESTLIST      = YES
-
-# The GENERATE_BUGLIST tag can be used to enable (YES) or disable (NO) the bug
-# list. This list is created by putting \bug commands in the documentation.
-# The default value is: YES.
-
-GENERATE_BUGLIST       = YES
-
-# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or disable (NO)
-# the deprecated list. This list is created by putting \deprecated commands in
-# the documentation.
-# The default value is: YES.
-
-GENERATE_DEPRECATEDLIST= YES
-
-# The ENABLED_SECTIONS tag can be used to enable conditional documentation
-# sections, marked by \if <section_label> ... \endif and \cond <section_label>
-# ... \endcond blocks.
-
-ENABLED_SECTIONS       =
-
-# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
-# initial value of a variable or macro / define can have for it to appear in the
-# documentation. If the initializer consists of more lines than specified here
-# it will be hidden. Use a value of 0 to hide initializers completely. The
-# appearance of the value of individual variables and macros / defines can be
-# controlled using \showinitializer or \hideinitializer command in the
-# documentation regardless of this setting.
-# Minimum value: 0, maximum value: 10000, default value: 30.
-
-MAX_INITIALIZER_LINES  = 30
-
-# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
-# the bottom of the documentation of classes and structs. If set to YES, the
-# list will mention the files that were used to generate the documentation.
-# The default value is: YES.
-
-SHOW_USED_FILES        = YES
-
-# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
-# will remove the Files entry from the Quick Index and from the Folder Tree View
-# (if specified).
-# The default value is: YES.
-
-SHOW_FILES             = YES
-
-# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
-# page. This will remove the Namespaces entry from the Quick Index and from the
-# Folder Tree View (if specified).
-# The default value is: YES.
-
-SHOW_NAMESPACES        = YES
-
-# The FILE_VERSION_FILTER tag can be used to specify a program or script that
-# doxygen should invoke to get the current version for each file (typically from
-# the version control system). Doxygen will invoke the program by executing (via
-# popen()) the command command input-file, where command is the value of the
-# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
-# by doxygen. Whatever the program writes to standard output is used as the file
-# version. For an example see the documentation.
-
-FILE_VERSION_FILTER    =
-
-# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
-# by doxygen. The layout file controls the global structure of the generated
-# output files in an output format independent way. To create the layout file
-# that represents doxygen's defaults, run doxygen with the -l option. You can
-# optionally specify a file name after the option, if omitted DoxygenLayout.xml
-# will be used as the name of the layout file.
-#
-# Note that if you run doxygen from a directory containing a file called
-# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
-# tag is left empty.
-
-LAYOUT_FILE            =
-
-# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
-# the reference definitions. This must be a list of .bib files. The .bib
-# extension is automatically appended if omitted. This requires the bibtex tool
-# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
-# For LaTeX the style of the bibliography can be controlled using
-# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
-# search path. See also \cite for info how to create references.
-
-CITE_BIB_FILES         =
-
-#---------------------------------------------------------------------------
-# Configuration options related to warning and progress messages
-#---------------------------------------------------------------------------
-
-# The QUIET tag can be used to turn on/off the messages that are generated to
-# standard output by doxygen. If QUIET is set to YES this implies that the
-# messages are off.
-# The default value is: NO.
-
-QUIET                  = NO
-
-# The WARNINGS tag can be used to turn on/off the warning messages that are
-# generated to standard error (stderr) by doxygen. If WARNINGS is set to YES
-# this implies that the warnings are on.
-#
-# Tip: Turn warnings on while writing the documentation.
-# The default value is: YES.
-
-WARNINGS               = YES
-
-# If the WARN_IF_UNDOCUMENTED tag is set to YES then doxygen will generate
-# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
-# will automatically be disabled.
-# The default value is: YES.
-
-WARN_IF_UNDOCUMENTED   = YES
-
-# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
-# potential errors in the documentation, such as not documenting some parameters
-# in a documented function, or documenting parameters that don't exist or using
-# markup commands wrongly.
-# The default value is: YES.
-
-WARN_IF_DOC_ERROR      = YES
-
-# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
-# are documented, but have no documentation for their parameters or return
-# value. If set to NO, doxygen will only warn about wrong or incomplete
-# parameter documentation, but not about the absence of documentation.
-# The default value is: NO.
-
-WARN_NO_PARAMDOC       = NO
-
-# If the WARN_AS_ERROR tag is set to YES then doxygen will immediately stop when
-# a warning is encountered.
-# The default value is: NO.
-
-WARN_AS_ERROR          = NO
-
-# The WARN_FORMAT tag determines the format of the warning messages that doxygen
-# can produce. The string should contain the $file, $line, and $text tags, which
-# will be replaced by the file and line number from which the warning originated
-# and the warning text. Optionally the format may contain $version, which will
-# be replaced by the version of the file (if it could be obtained via
-# FILE_VERSION_FILTER)
-# The default value is: $file:$line: $text.
-
-WARN_FORMAT            = "$file:$line: $text"
-
-# The WARN_LOGFILE tag can be used to specify a file to which warning and error
-# messages should be written. If left blank the output is written to standard
-# error (stderr).
-
-WARN_LOGFILE           =
-
-#---------------------------------------------------------------------------
-# Configuration options related to the input files
-#---------------------------------------------------------------------------
-
-# The INPUT tag is used to specify the files and/or directories that contain
-# documented source files. You may enter file names like myfile.cpp or
-# directories like /usr/src/myproject. Separate the files or directories with
-# spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
-# Note: If this tag is empty the current directory is searched.
-
-INPUT                  = td/generate/auto/td/telegram/td_api.h td/generate/auto/td/telegram/td_api.hpp td/tl/TlObject.h td/telegram/Client.h td/telegram/ClientActor.h td/telegram/Log.h td/telegram/TdCallback.h td/telegram/td_json_client.h td/telegram/td_log.h ./README.md
-
-# This tag can be used to specify the character encoding of the source files
-# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
-# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
-# documentation (see: http://www.gnu.org/software/libiconv) for the list of
-# possible encodings.
-# The default value is: UTF-8.
-
-INPUT_ENCODING         = UTF-8
-
-# If the value of the INPUT tag contains directories, you can use the
-# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
-# *.h) to filter out the source-files in the directories.
-#
-# Note that for custom extensions or not directly supported extensions you also
-# need to set EXTENSION_MAPPING for the extension otherwise the files are not
-# read by doxygen.
-#
-# If left blank the following patterns are tested:*.c, *.cc, *.cxx, *.cpp,
-# *.c++, *.java, *.ii, *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h,
-# *.hh, *.hxx, *.hpp, *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc,
-# *.m, *.markdown, *.md, *.mm, *.dox, *.py, *.pyw, *.f90, *.f95, *.f03, *.f08,
-# *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf and *.qsf.
-
-FILE_PATTERNS          = *.c \
-                         *.cc \
-                         *.cxx \
-                         *.cpp \
-                         *.c++ \
-                         *.java \
-                         *.ii \
-                         *.ixx \
-                         *.ipp \
-                         *.i++ \
-                         *.inl \
-                         *.idl \
-                         *.ddl \
-                         *.odl \
-                         *.h \
-                         *.hh \
-                         *.hxx \
-                         *.hpp \
-                         *.h++ \
-                         *.cs \
-                         *.d \
-                         *.php \
-                         *.php4 \
-                         *.php5 \
-                         *.phtml \
-                         *.inc \
-                         *.m \
-                         *.markdown \
-                         *.md \
-                         *.mm \
-                         *.dox \
-                         *.py \
-                         *.pyw \
-                         *.f90 \
-                         *.f95 \
-                         *.f03 \
-                         *.f08 \
-                         *.f \
-                         *.for \
-                         *.tcl \
-                         *.vhd \
-                         *.vhdl \
-                         *.ucf \
-                         *.qsf
-
-# The RECURSIVE tag can be used to specify whether or not subdirectories should
-# be searched for input files as well.
-# The default value is: NO.
-
-RECURSIVE              = NO
-
-# The EXCLUDE tag can be used to specify files and/or directories that should be
-# excluded from the INPUT source files. This way you can easily exclude a
-# subdirectory from a directory tree whose root is specified with the INPUT tag.
-#
-# Note that relative paths are relative to the directory from which doxygen is
-# run.
-
-EXCLUDE                =
-
-# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
-# directories that are symbolic links (a Unix file system feature) are excluded
-# from the input.
-# The default value is: NO.
-
-EXCLUDE_SYMLINKS       = NO
-
-# If the value of the INPUT tag contains directories, you can use the
-# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
-# certain files from those directories.
-#
-# Note that the wildcards are matched against the file with absolute path, so to
-# exclude all test directories for example use the pattern */test/*
-
-EXCLUDE_PATTERNS       =
-
-# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
-# (namespaces, classes, functions, etc.) that should be excluded from the
-# output. The symbol name can be a fully qualified name, a word, or if the
-# wildcard * is used, a substring. Examples: ANamespace, AClass,
-# AClass::ANamespace, ANamespace::*Test
-#
-# Note that the wildcards are matched against the file with absolute path, so to
-# exclude all test directories use the pattern */test/*
-
-EXCLUDE_SYMBOLS        =
-
-# The EXAMPLE_PATH tag can be used to specify one or more files or directories
-# that contain example code fragments that are included (see the \include
-# command).
-
-EXAMPLE_PATH           =
-
-# If the value of the EXAMPLE_PATH tag contains directories, you can use the
-# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
-# *.h) to filter out the source-files in the directories. If left blank all
-# files are included.
-
-EXAMPLE_PATTERNS       = *
-
-# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
-# searched for input files to be used with the \include or \dontinclude commands
-# irrespective of the value of the RECURSIVE tag.
-# The default value is: NO.
-
-EXAMPLE_RECURSIVE      = NO
-
-# The IMAGE_PATH tag can be used to specify one or more files or directories
-# that contain images that are to be included in the documentation (see the
-# \image command).
-
-IMAGE_PATH             =
-
-# The INPUT_FILTER tag can be used to specify a program that doxygen should
-# invoke to filter for each input file. Doxygen will invoke the filter program
-# by executing (via popen()) the command:
-#
-# <filter> <input-file>
-#
-# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
-# name of an input file. Doxygen will then use the output that the filter
-# program writes to standard output. If FILTER_PATTERNS is specified, this tag
-# will be ignored.
-#
-# Note that the filter must not add or remove lines; it is applied before the
-# code is scanned, but not when the output code is generated. If lines are added
-# or removed, the anchors will not be placed correctly.
-#
-# Note that for custom extensions or not directly supported extensions you also
-# need to set EXTENSION_MAPPING for the extension otherwise the files are not
-# properly processed by doxygen.
-
-INPUT_FILTER           =
-
-# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
-# basis. Doxygen will compare the file name with each pattern and apply the
-# filter if there is a match. The filters are a list of the form: pattern=filter
-# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
-# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
-# patterns match the file name, INPUT_FILTER is applied.
-#
-# Note that for custom extensions or not directly supported extensions you also
-# need to set EXTENSION_MAPPING for the extension otherwise the files are not
-# properly processed by doxygen.
-
-FILTER_PATTERNS        =
-
-# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
-# INPUT_FILTER) will also be used to filter the input files that are used for
-# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
-# The default value is: NO.
-
-FILTER_SOURCE_FILES    = NO
-
-# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
-# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
-# it is also possible to disable source filtering for a specific pattern using
-# *.ext= (so without naming a filter).
-# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
-
-FILTER_SOURCE_PATTERNS =
-
-# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
-# is part of the input, its contents will be placed on the main page
-# (index.html). This can be useful if you have a project on for instance GitHub
-# and want to reuse the introduction page also for the doxygen output.
-
-USE_MDFILE_AS_MAINPAGE = ./README.md
-
-#---------------------------------------------------------------------------
-# Configuration options related to source browsing
-#---------------------------------------------------------------------------
-
-# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
-# generated. Documented entities will be cross-referenced with these sources.
-#
-# Note: To get rid of all source code in the generated output, make sure that
-# also VERBATIM_HEADERS is set to NO.
-# The default value is: NO.
-
-SOURCE_BROWSER         = NO
-
-# Setting the INLINE_SOURCES tag to YES will include the body of functions,
-# classes and enums directly into the documentation.
-# The default value is: NO.
-
-INLINE_SOURCES         = NO
-
-# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
-# special comment blocks from generated source code fragments. Normal C, C++ and
-# Fortran comments will always remain visible.
-# The default value is: YES.
-
-STRIP_CODE_COMMENTS    = YES
-
-# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
-# function all documented functions referencing it will be listed.
-# The default value is: NO.
-
-REFERENCED_BY_RELATION = NO
-
-# If the REFERENCES_RELATION tag is set to YES then for each documented function
-# all documented entities called/used by that function will be listed.
-# The default value is: NO.
-
-REFERENCES_RELATION    = NO
-
-# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
-# to YES then the hyperlinks from functions in REFERENCES_RELATION and
-# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
-# link to the documentation.
-# The default value is: YES.
-
-REFERENCES_LINK_SOURCE = YES
-
-# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
-# source code will show a tooltip with additional information such as prototype,
-# brief description and links to the definition and documentation. Since this
-# will make the HTML file larger and loading of large files a bit slower, you
-# can opt to disable this feature.
-# The default value is: YES.
-# This tag requires that the tag SOURCE_BROWSER is set to YES.
-
-SOURCE_TOOLTIPS        = YES
-
-# If the USE_HTAGS tag is set to YES then the references to source code will
-# point to the HTML generated by the htags(1) tool instead of doxygen built-in
-# source browser. The htags tool is part of GNU's global source tagging system
-# (see http://www.gnu.org/software/global/global.html). You will need version
-# 4.8.6 or higher.
-#
-# To use it do the following:
-# - Install the latest version of global
-# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
-# - Make sure the INPUT points to the root of the source tree
-# - Run doxygen as normal
-#
-# Doxygen will invoke htags (and that will in turn invoke gtags), so these
-# tools must be available from the command line (i.e. in the search path).
-#
-# The result: instead of the source browser generated by doxygen, the links to
-# source code will now point to the output of htags.
-# The default value is: NO.
-# This tag requires that the tag SOURCE_BROWSER is set to YES.
-
-USE_HTAGS              = NO
-
-# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
-# verbatim copy of the header file for each class for which an include is
-# specified. Set to NO to disable this.
-# See also: Section \class.
-# The default value is: YES.
-
-VERBATIM_HEADERS       = YES
-
-#---------------------------------------------------------------------------
-# Configuration options related to the alphabetical class index
-#---------------------------------------------------------------------------
-
-# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
-# compounds will be generated. Enable this if the project contains a lot of
-# classes, structs, unions or interfaces.
-# The default value is: YES.
-
-ALPHABETICAL_INDEX     = YES
-
-# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
-# which the alphabetical index list will be split.
-# Minimum value: 1, maximum value: 20, default value: 5.
-# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
-
-COLS_IN_ALPHA_INDEX    = 5
-
-# In case all classes in a project start with a common prefix, all classes will
-# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
-# can be used to specify a prefix (or a list of prefixes) that should be ignored
-# while generating the index headers.
-# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
-
-IGNORE_PREFIX          =
-
-#---------------------------------------------------------------------------
-# Configuration options related to the HTML output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_HTML tag is set to YES, doxygen will generate HTML output
-# The default value is: YES.
-
-GENERATE_HTML          = YES
-
-# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
-# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
-# it.
-# The default directory is: html.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_OUTPUT            = html
-
-# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
-# generated HTML page (for example: .htm, .php, .asp).
-# The default value is: .html.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_FILE_EXTENSION    = .html
-
-# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
-# each generated HTML page. If the tag is left blank doxygen will generate a
-# standard header.
-#
-# To get valid HTML the header file that includes any scripts and style sheets
-# that doxygen needs, which is dependent on the configuration options used (e.g.
-# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
-# default header using
-# doxygen -w html new_header.html new_footer.html new_stylesheet.css
-# YourConfigFile
-# and then modify the file new_header.html. See also section "Doxygen usage"
-# for information on how to generate the default header that doxygen normally
-# uses.
-# Note: The header is subject to change so you typically have to regenerate the
-# default header when upgrading to a newer version of doxygen. For a description
-# of the possible markers and block names see the documentation.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_HEADER            =
-
-# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
-# generated HTML page. If the tag is left blank doxygen will generate a standard
-# footer. See HTML_HEADER for more information on how to generate a default
-# footer and what special commands can be used inside the footer. See also
-# section "Doxygen usage" for information on how to generate the default footer
-# that doxygen normally uses.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_FOOTER            =
-
-# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
-# sheet that is used by each HTML page. It can be used to fine-tune the look of
-# the HTML output. If left blank doxygen will generate a default style sheet.
-# See also section "Doxygen usage" for information on how to generate the style
-# sheet that doxygen normally uses.
-# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
-# it is more robust and this tag (HTML_STYLESHEET) will in the future become
-# obsolete.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_STYLESHEET        =
-
-# The HTML_EXTRA_STYLESHEET tag can be used to specify additional user-defined
-# cascading style sheets that are included after the standard style sheets
-# created by doxygen. Using this option one can overrule certain style aspects.
-# This is preferred over using HTML_STYLESHEET since it does not replace the
-# standard style sheet and is therefore more robust against future updates.
-# Doxygen will copy the style sheet files to the output directory.
-# Note: The order of the extra style sheet files is of importance (e.g. the last
-# style sheet in the list overrules the setting of the previous ones in the
-# list). For an example see the documentation.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_EXTRA_STYLESHEET  =
-
-# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
-# other source files which should be copied to the HTML output directory. Note
-# that these files will be copied to the base HTML output directory. Use the
-# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
-# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
-# files will be copied as-is; there are no commands or markers available.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_EXTRA_FILES       =
-
-# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
-# will adjust the colors in the style sheet and background images according to
-# this color. Hue is specified as an angle on a colorwheel, see
-# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
-# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
-# purple, and 360 is red again.
-# Minimum value: 0, maximum value: 359, default value: 220.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_COLORSTYLE_HUE    = 220
-
-# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
-# in the HTML output. For a value of 0 the output will use grayscales only. A
-# value of 255 will produce the most vivid colors.
-# Minimum value: 0, maximum value: 255, default value: 100.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_COLORSTYLE_SAT    = 100
-
-# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
-# luminance component of the colors in the HTML output. Values below 100
-# gradually make the output lighter, whereas values above 100 make the output
-# darker. The value divided by 100 is the actual gamma applied, so 80 represents
-# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
-# change the gamma.
-# Minimum value: 40, maximum value: 240, default value: 80.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_COLORSTYLE_GAMMA  = 80
-
-# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
-# page will contain the date and time when the page was generated. Setting this
-# to YES can help to show when doxygen was last run and thus if the
-# documentation is up to date.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_TIMESTAMP         = NO
-
-# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
-# documentation will contain sections that can be hidden and shown after the
-# page has loaded.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_DYNAMIC_SECTIONS  = NO
-
-# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
-# shown in the various tree structured indices initially; the user can expand
-# and collapse entries dynamically later on. Doxygen will expand the tree to
-# such a level that at most the specified number of entries are visible (unless
-# a fully collapsed tree already exceeds this amount). So setting the number of
-# entries 1 will produce a full collapsed tree by default. 0 is a special value
-# representing an infinite number of entries and will result in a full expanded
-# tree by default.
-# Minimum value: 0, maximum value: 9999, default value: 100.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-HTML_INDEX_NUM_ENTRIES = 100
-
-# If the GENERATE_DOCSET tag is set to YES, additional index files will be
-# generated that can be used as input for Apple's Xcode 3 integrated development
-# environment (see: http://developer.apple.com/tools/xcode/), introduced with
-# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
-# Makefile in the HTML output directory. Running make will produce the docset in
-# that directory and running make install will install the docset in
-# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
-# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
-# for more information.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-GENERATE_DOCSET        = NO
-
-# This tag determines the name of the docset feed. A documentation feed provides
-# an umbrella under which multiple documentation sets from a single provider
-# (such as a company or product suite) can be grouped.
-# The default value is: Doxygen generated docs.
-# This tag requires that the tag GENERATE_DOCSET is set to YES.
-
-DOCSET_FEEDNAME        = "Doxygen generated docs"
-
-# This tag specifies a string that should uniquely identify the documentation
-# set bundle. This should be a reverse domain-name style string, e.g.
-# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
-# The default value is: org.doxygen.Project.
-# This tag requires that the tag GENERATE_DOCSET is set to YES.
-
-DOCSET_BUNDLE_ID       = org.doxygen.Project
-
-# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
-# the documentation publisher. This should be a reverse domain-name style
-# string, e.g. com.mycompany.MyDocSet.documentation.
-# The default value is: org.doxygen.Publisher.
-# This tag requires that the tag GENERATE_DOCSET is set to YES.
-
-DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
-
-# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
-# The default value is: Publisher.
-# This tag requires that the tag GENERATE_DOCSET is set to YES.
-
-DOCSET_PUBLISHER_NAME  = Publisher
-
-# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
-# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
-# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
-# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
-# Windows.
-#
-# The HTML Help Workshop contains a compiler that can convert all HTML output
-# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
-# files are now used as the Windows 98 help format, and will replace the old
-# Windows help format (.hlp) on all Windows platforms in the future. Compressed
-# HTML files also contain an index, a table of contents, and you can search for
-# words in the documentation. The HTML workshop also contains a viewer for
-# compressed HTML files.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-GENERATE_HTMLHELP      = NO
-
-# The CHM_FILE tag can be used to specify the file name of the resulting .chm
-# file. You can add a path in front of the file if the result should not be
-# written to the html output directory.
-# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
-
-CHM_FILE               =
-
-# The HHC_LOCATION tag can be used to specify the location (absolute path
-# including file name) of the HTML help compiler (hhc.exe). If non-empty,
-# doxygen will try to run the HTML help compiler on the generated index.hhp.
-# The file has to be specified with full path.
-# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
-
-HHC_LOCATION           =
-
-# The GENERATE_CHI flag controls if a separate .chi index file is generated
-# (YES) or that it should be included in the master .chm file (NO).
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
-
-GENERATE_CHI           = NO
-
-# The CHM_INDEX_ENCODING is used to encode HtmlHelp index (hhk), content (hhc)
-# and project file content.
-# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
-
-CHM_INDEX_ENCODING     =
-
-# The BINARY_TOC flag controls whether a binary table of contents is generated
-# (YES) or a normal table of contents (NO) in the .chm file. Furthermore it
-# enables the Previous and Next buttons.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
-
-BINARY_TOC             = NO
-
-# The TOC_EXPAND flag can be set to YES to add extra items for group members to
-# the table of contents of the HTML help documentation and to the tree view.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
-
-TOC_EXPAND             = NO
-
-# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
-# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
-# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
-# (.qch) of the generated HTML documentation.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-GENERATE_QHP           = NO
-
-# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
-# the file name of the resulting .qch file. The path specified is relative to
-# the HTML output folder.
-# This tag requires that the tag GENERATE_QHP is set to YES.
-
-QCH_FILE               =
-
-# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
-# Project output. For more information please see Qt Help Project / Namespace
-# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
-# The default value is: org.doxygen.Project.
-# This tag requires that the tag GENERATE_QHP is set to YES.
-
-QHP_NAMESPACE          = org.doxygen.Project
-
-# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
-# Help Project output. For more information please see Qt Help Project / Virtual
-# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
-# folders).
-# The default value is: doc.
-# This tag requires that the tag GENERATE_QHP is set to YES.
-
-QHP_VIRTUAL_FOLDER     = doc
-
-# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
-# filter to add. For more information please see Qt Help Project / Custom
-# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
-# filters).
-# This tag requires that the tag GENERATE_QHP is set to YES.
-
-QHP_CUST_FILTER_NAME   =
-
-# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
-# custom filter to add. For more information please see Qt Help Project / Custom
-# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
-# filters).
-# This tag requires that the tag GENERATE_QHP is set to YES.
-
-QHP_CUST_FILTER_ATTRS  =
-
-# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
-# project's filter section matches. Qt Help Project / Filter Attributes (see:
-# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
-# This tag requires that the tag GENERATE_QHP is set to YES.
-
-QHP_SECT_FILTER_ATTRS  =
-
-# The QHG_LOCATION tag can be used to specify the location of Qt's
-# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
-# generated .qhp file.
-# This tag requires that the tag GENERATE_QHP is set to YES.
-
-QHG_LOCATION           =
-
-# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
-# generated, together with the HTML files, they form an Eclipse help plugin. To
-# install this plugin and make it available under the help contents menu in
-# Eclipse, the contents of the directory containing the HTML and XML files needs
-# to be copied into the plugins directory of eclipse. The name of the directory
-# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
-# After copying Eclipse needs to be restarted before the help appears.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-GENERATE_ECLIPSEHELP   = NO
-
-# A unique identifier for the Eclipse help plugin. When installing the plugin
-# the directory name containing the HTML and XML files should also have this
-# name. Each documentation set should have its own identifier.
-# The default value is: org.doxygen.Project.
-# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
-
-ECLIPSE_DOC_ID         = org.doxygen.Project
-
-# If you want full control over the layout of the generated HTML pages it might
-# be necessary to disable the index and replace it with your own. The
-# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
-# of each HTML page. A value of NO enables the index and the value YES disables
-# it. Since the tabs in the index contain the same information as the navigation
-# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-DISABLE_INDEX          = NO
-
-# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
-# structure should be generated to display hierarchical information. If the tag
-# value is set to YES, a side panel will be generated containing a tree-like
-# index structure (just like the one that is generated for HTML Help). For this
-# to work a browser that supports JavaScript, DHTML, CSS and frames is required
-# (i.e. any modern browser). Windows users are probably better off using the
-# HTML help feature. Via custom style sheets (see HTML_EXTRA_STYLESHEET) one can
-# further fine-tune the look of the index. As an example, the default style
-# sheet generated by doxygen has an example that shows how to put an image at
-# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
-# the same information as the tab index, you could consider setting
-# DISABLE_INDEX to YES when enabling this option.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-GENERATE_TREEVIEW      = NO
-
-# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
-# doxygen will group on one line in the generated HTML documentation.
-#
-# Note that a value of 0 will completely suppress the enum values from appearing
-# in the overview section.
-# Minimum value: 0, maximum value: 20, default value: 4.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-ENUM_VALUES_PER_LINE   = 4
-
-# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
-# to set the initial width (in pixels) of the frame in which the tree is shown.
-# Minimum value: 0, maximum value: 1500, default value: 250.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-TREEVIEW_WIDTH         = 250
-
-# If the EXT_LINKS_IN_WINDOW option is set to YES, doxygen will open links to
-# external symbols imported via tag files in a separate window.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-EXT_LINKS_IN_WINDOW    = NO
-
-# Use this tag to change the font size of LaTeX formulas included as images in
-# the HTML documentation. When you change the font size after a successful
-# doxygen run you need to manually remove any form_*.png images from the HTML
-# output directory to force them to be regenerated.
-# Minimum value: 8, maximum value: 50, default value: 10.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-FORMULA_FONTSIZE       = 10
-
-# Use the FORMULA_TRANPARENT tag to determine whether or not the images
-# generated for formulas are transparent PNGs. Transparent PNGs are not
-# supported properly for IE 6.0, but are supported on all modern browsers.
-#
-# Note that when changing this option you need to delete any form_*.png files in
-# the HTML output directory before the changes have effect.
-# The default value is: YES.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-FORMULA_TRANSPARENT    = YES
-
-# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
-# http://www.mathjax.org) which uses client side Javascript for the rendering
-# instead of using pre-rendered bitmaps. Use this if you do not have LaTeX
-# installed or if you want to formulas look prettier in the HTML output. When
-# enabled you may also need to install MathJax separately and configure the path
-# to it using the MATHJAX_RELPATH option.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-USE_MATHJAX            = NO
-
-# When MathJax is enabled you can set the default output format to be used for
-# the MathJax output. See the MathJax site (see:
-# http://docs.mathjax.org/en/latest/output.html) for more details.
-# Possible values are: HTML-CSS (which is slower, but has the best
-# compatibility), NativeMML (i.e. MathML) and SVG.
-# The default value is: HTML-CSS.
-# This tag requires that the tag USE_MATHJAX is set to YES.
-
-MATHJAX_FORMAT         = HTML-CSS
-
-# When MathJax is enabled you need to specify the location relative to the HTML
-# output directory using the MATHJAX_RELPATH option. The destination directory
-# should contain the MathJax.js script. For instance, if the mathjax directory
-# is located at the same level as the HTML output directory, then
-# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
-# Content Delivery Network so you can quickly see the result without installing
-# MathJax. However, it is strongly recommended to install a local copy of
-# MathJax from http://www.mathjax.org before deployment.
-# The default value is: http://cdn.mathjax.org/mathjax/latest.
-# This tag requires that the tag USE_MATHJAX is set to YES.
-
-MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
-
-# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
-# extension names that should be enabled during MathJax rendering. For example
-# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
-# This tag requires that the tag USE_MATHJAX is set to YES.
-
-MATHJAX_EXTENSIONS     =
-
-# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
-# of code that will be used on startup of the MathJax code. See the MathJax site
-# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
-# example see the documentation.
-# This tag requires that the tag USE_MATHJAX is set to YES.
-
-MATHJAX_CODEFILE       =
-
-# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
-# the HTML output. The underlying search engine uses javascript and DHTML and
-# should work on any modern browser. Note that when using HTML help
-# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
-# there is already a search function so this one should typically be disabled.
-# For large projects the javascript based search engine can be slow, then
-# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
-# search using the keyboard; to jump to the search box use <access key> + S
-# (what the <access key> is depends on the OS and browser, but it is typically
-# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
-# key> to jump into the search results window, the results can be navigated
-# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
-# the search. The filter options can be selected when the cursor is inside the
-# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
-# to select a filter and <Enter> or <escape> to activate or cancel the filter
-# option.
-# The default value is: YES.
-# This tag requires that the tag GENERATE_HTML is set to YES.
-
-SEARCHENGINE           = YES
-
-# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
-# implemented using a web server instead of a web client using Javascript. There
-# are two flavors of web server based searching depending on the EXTERNAL_SEARCH
-# setting. When disabled, doxygen will generate a PHP script for searching and
-# an index file used by the script. When EXTERNAL_SEARCH is enabled the indexing
-# and searching needs to be provided by external tools. See the section
-# "External Indexing and Searching" for details.
-# The default value is: NO.
-# This tag requires that the tag SEARCHENGINE is set to YES.
-
-SERVER_BASED_SEARCH    = NO
-
-# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
-# script for searching. Instead the search results are written to an XML file
-# which needs to be processed by an external indexer. Doxygen will invoke an
-# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
-# search results.
-#
-# Doxygen ships with an example indexer (doxyindexer) and search engine
-# (doxysearch.cgi) which are based on the open source search engine library
-# Xapian (see: http://xapian.org/).
-#
-# See the section "External Indexing and Searching" for details.
-# The default value is: NO.
-# This tag requires that the tag SEARCHENGINE is set to YES.
-
-EXTERNAL_SEARCH        = NO
-
-# The SEARCHENGINE_URL should point to a search engine hosted by a web server
-# which will return the search results when EXTERNAL_SEARCH is enabled.
-#
-# Doxygen ships with an example indexer (doxyindexer) and search engine
-# (doxysearch.cgi) which are based on the open source search engine library
-# Xapian (see: http://xapian.org/). See the section "External Indexing and
-# Searching" for details.
-# This tag requires that the tag SEARCHENGINE is set to YES.
-
-SEARCHENGINE_URL       =
-
-# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
-# search data is written to a file for indexing by an external tool. With the
-# SEARCHDATA_FILE tag the name of this file can be specified.
-# The default file is: searchdata.xml.
-# This tag requires that the tag SEARCHENGINE is set to YES.
-
-SEARCHDATA_FILE        = searchdata.xml
-
-# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
-# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
-# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
-# projects and redirect the results back to the right project.
-# This tag requires that the tag SEARCHENGINE is set to YES.
-
-EXTERNAL_SEARCH_ID     =
-
-# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
-# projects other than the one defined by this configuration file, but that are
-# all added to the same external search index. Each project needs to have a
-# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
-# to a relative location where the documentation can be found. The format is:
-# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
-# This tag requires that the tag SEARCHENGINE is set to YES.
-
-EXTRA_SEARCH_MAPPINGS  =
-
-#---------------------------------------------------------------------------
-# Configuration options related to the LaTeX output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_LATEX tag is set to YES, doxygen will generate LaTeX output.
-# The default value is: YES.
-
-GENERATE_LATEX         = NO
-
-# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
-# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
-# it.
-# The default directory is: latex.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_OUTPUT           = latex
-
-# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
-# invoked.
-#
-# Note that when enabling USE_PDFLATEX this option is only used for generating
-# bitmaps for formulas in the HTML output, but not in the Makefile that is
-# written to the output directory.
-# The default file is: latex.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_CMD_NAME         = latex
-
-# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
-# index for LaTeX.
-# The default file is: makeindex.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-MAKEINDEX_CMD_NAME     = makeindex
-
-# If the COMPACT_LATEX tag is set to YES, doxygen generates more compact LaTeX
-# documents. This may be useful for small projects and may help to save some
-# trees in general.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-COMPACT_LATEX          = NO
-
-# The PAPER_TYPE tag can be used to set the paper type that is used by the
-# printer.
-# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
-# 14 inches) and executive (7.25 x 10.5 inches).
-# The default value is: a4.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-PAPER_TYPE             = a4
-
-# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
-# that should be included in the LaTeX output. The package can be specified just
-# by its name or with the correct syntax as to be used with the LaTeX
-# \usepackage command. To get the times font for instance you can specify :
-# EXTRA_PACKAGES=times or EXTRA_PACKAGES={times}
-# To use the option intlimits with the amsmath package you can specify:
-# EXTRA_PACKAGES=[intlimits]{amsmath}
-# If left blank no extra packages will be included.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-EXTRA_PACKAGES         =
-
-# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
-# generated LaTeX document. The header should contain everything until the first
-# chapter. If it is left blank doxygen will generate a standard header. See
-# section "Doxygen usage" for information on how to let doxygen write the
-# default header to a separate file.
-#
-# Note: Only use a user-defined header if you know what you are doing! The
-# following commands have a special meaning inside the header: $title,
-# $datetime, $date, $doxygenversion, $projectname, $projectnumber,
-# $projectbrief, $projectlogo. Doxygen will replace $title with the empty
-# string, for the replacement values of the other commands the user is referred
-# to HTML_HEADER.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_HEADER           =
-
-# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
-# generated LaTeX document. The footer should contain everything after the last
-# chapter. If it is left blank doxygen will generate a standard footer. See
-# LATEX_HEADER for more information on how to generate a default footer and what
-# special commands can be used inside the footer.
-#
-# Note: Only use a user-defined footer if you know what you are doing!
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_FOOTER           =
-
-# The LATEX_EXTRA_STYLESHEET tag can be used to specify additional user-defined
-# LaTeX style sheets that are included after the standard style sheets created
-# by doxygen. Using this option one can overrule certain style aspects. Doxygen
-# will copy the style sheet files to the output directory.
-# Note: The order of the extra style sheet files is of importance (e.g. the last
-# style sheet in the list overrules the setting of the previous ones in the
-# list).
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_EXTRA_STYLESHEET =
-
-# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
-# other source files which should be copied to the LATEX_OUTPUT output
-# directory. Note that the files will be copied as-is; there are no commands or
-# markers available.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_EXTRA_FILES      =
-
-# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
-# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
-# contain links (just like the HTML output) instead of page references. This
-# makes the output suitable for online browsing using a PDF viewer.
-# The default value is: YES.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-PDF_HYPERLINKS         = YES
-
-# If the USE_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
-# the PDF file directly from the LaTeX files. Set this option to YES, to get a
-# higher quality PDF documentation.
-# The default value is: YES.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-USE_PDFLATEX           = YES
-
-# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
-# command to the generated LaTeX files. This will instruct LaTeX to keep running
-# if errors occur, instead of asking the user for help. This option is also used
-# when generating formulas in HTML.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_BATCHMODE        = NO
-
-# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
-# index chapters (such as File Index, Compound Index, etc.) in the output.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_HIDE_INDICES     = NO
-
-# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
-# code with syntax highlighting in the LaTeX output.
-#
-# Note that which sources are shown also depends on other settings such as
-# SOURCE_BROWSER.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_SOURCE_CODE      = NO
-
-# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
-# bibliography, e.g. plainnat, or ieeetr. See
-# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
-# The default value is: plain.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_BIB_STYLE        = plain
-
-# If the LATEX_TIMESTAMP tag is set to YES then the footer of each generated
-# page will contain the date and time when the page was generated. Setting this
-# to NO can help when comparing the output of multiple runs.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_TIMESTAMP        = NO
-
-#---------------------------------------------------------------------------
-# Configuration options related to the RTF output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_RTF tag is set to YES, doxygen will generate RTF output. The
-# RTF output is optimized for Word 97 and may not look too pretty with other RTF
-# readers/editors.
-# The default value is: NO.
-
-GENERATE_RTF           = NO
-
-# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
-# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
-# it.
-# The default directory is: rtf.
-# This tag requires that the tag GENERATE_RTF is set to YES.
-
-RTF_OUTPUT             = rtf
-
-# If the COMPACT_RTF tag is set to YES, doxygen generates more compact RTF
-# documents. This may be useful for small projects and may help to save some
-# trees in general.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_RTF is set to YES.
-
-COMPACT_RTF            = NO
-
-# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
-# contain hyperlink fields. The RTF file will contain links (just like the HTML
-# output) instead of page references. This makes the output suitable for online
-# browsing using Word or some other Word compatible readers that support those
-# fields.
-#
-# Note: WordPad (write) and others do not support links.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_RTF is set to YES.
-
-RTF_HYPERLINKS         = NO
-
-# Load stylesheet definitions from file. Syntax is similar to doxygen's config
-# file, i.e. a series of assignments. You only have to provide replacements,
-# missing definitions are set to their default value.
-#
-# See also section "Doxygen usage" for information on how to generate the
-# default style sheet that doxygen normally uses.
-# This tag requires that the tag GENERATE_RTF is set to YES.
-
-RTF_STYLESHEET_FILE    =
-
-# Set optional variables used in the generation of an RTF document. Syntax is
-# similar to doxygen's config file. A template extensions file can be generated
-# using doxygen -e rtf extensionFile.
-# This tag requires that the tag GENERATE_RTF is set to YES.
-
-RTF_EXTENSIONS_FILE    =
-
-# If the RTF_SOURCE_CODE tag is set to YES then doxygen will include source code
-# with syntax highlighting in the RTF output.
-#
-# Note that which sources are shown also depends on other settings such as
-# SOURCE_BROWSER.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_RTF is set to YES.
-
-RTF_SOURCE_CODE        = NO
-
-#---------------------------------------------------------------------------
-# Configuration options related to the man page output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_MAN tag is set to YES, doxygen will generate man pages for
-# classes and files.
-# The default value is: NO.
-
-GENERATE_MAN           = NO
-
-# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
-# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
-# it. A directory man3 will be created inside the directory specified by
-# MAN_OUTPUT.
-# The default directory is: man.
-# This tag requires that the tag GENERATE_MAN is set to YES.
-
-MAN_OUTPUT             = man
-
-# The MAN_EXTENSION tag determines the extension that is added to the generated
-# man pages. In case the manual section does not start with a number, the number
-# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
-# optional.
-# The default value is: .3.
-# This tag requires that the tag GENERATE_MAN is set to YES.
-
-MAN_EXTENSION          = .3
-
-# The MAN_SUBDIR tag determines the name of the directory created within
-# MAN_OUTPUT in which the man pages are placed. If defaults to man followed by
-# MAN_EXTENSION with the initial . removed.
-# This tag requires that the tag GENERATE_MAN is set to YES.
-
-MAN_SUBDIR             =
-
-# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
-# will generate one additional man file for each entity documented in the real
-# man page(s). These additional files only source the real man page, but without
-# them the man command would be unable to find the correct page.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_MAN is set to YES.
-
-MAN_LINKS              = NO
-
-#---------------------------------------------------------------------------
-# Configuration options related to the XML output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_XML tag is set to YES, doxygen will generate an XML file that
-# captures the structure of the code including all documentation.
-# The default value is: NO.
-
-GENERATE_XML           = NO
-
-# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
-# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
-# it.
-# The default directory is: xml.
-# This tag requires that the tag GENERATE_XML is set to YES.
-
-XML_OUTPUT             = xml
-
-# If the XML_PROGRAMLISTING tag is set to YES, doxygen will dump the program
-# listings (including syntax highlighting and cross-referencing information) to
-# the XML output. Note that enabling this will significantly increase the size
-# of the XML output.
-# The default value is: YES.
-# This tag requires that the tag GENERATE_XML is set to YES.
-
-XML_PROGRAMLISTING     = YES
-
-#---------------------------------------------------------------------------
-# Configuration options related to the DOCBOOK output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_DOCBOOK tag is set to YES, doxygen will generate Docbook files
-# that can be used to generate PDF.
-# The default value is: NO.
-
-GENERATE_DOCBOOK       = NO
-
-# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
-# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
-# front of it.
-# The default directory is: docbook.
-# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
-
-DOCBOOK_OUTPUT         = docbook
-
-# If the DOCBOOK_PROGRAMLISTING tag is set to YES, doxygen will include the
-# program listings (including syntax highlighting and cross-referencing
-# information) to the DOCBOOK output. Note that enabling this will significantly
-# increase the size of the DOCBOOK output.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
-
-DOCBOOK_PROGRAMLISTING = NO
-
-#---------------------------------------------------------------------------
-# Configuration options for the AutoGen Definitions output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_AUTOGEN_DEF tag is set to YES, doxygen will generate an
-# AutoGen Definitions (see http://autogen.sf.net) file that captures the
-# structure of the code including all documentation. Note that this feature is
-# still experimental and incomplete at the moment.
-# The default value is: NO.
-
-GENERATE_AUTOGEN_DEF   = NO
-
-#---------------------------------------------------------------------------
-# Configuration options related to the Perl module output
-#---------------------------------------------------------------------------
-
-# If the GENERATE_PERLMOD tag is set to YES, doxygen will generate a Perl module
-# file that captures the structure of the code including all documentation.
-#
-# Note that this feature is still experimental and incomplete at the moment.
-# The default value is: NO.
-
-GENERATE_PERLMOD       = NO
-
-# If the PERLMOD_LATEX tag is set to YES, doxygen will generate the necessary
-# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
-# output from the Perl module output.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_PERLMOD is set to YES.
-
-PERLMOD_LATEX          = NO
-
-# If the PERLMOD_PRETTY tag is set to YES, the Perl module output will be nicely
-# formatted so it can be parsed by a human reader. This is useful if you want to
-# understand what is going on. On the other hand, if this tag is set to NO, the
-# size of the Perl module output will be much smaller and Perl will parse it
-# just the same.
-# The default value is: YES.
-# This tag requires that the tag GENERATE_PERLMOD is set to YES.
-
-PERLMOD_PRETTY         = YES
-
-# The names of the make variables in the generated doxyrules.make file are
-# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
-# so different doxyrules.make files included by the same Makefile don't
-# overwrite each other's variables.
-# This tag requires that the tag GENERATE_PERLMOD is set to YES.
-
-PERLMOD_MAKEVAR_PREFIX =
-
-#---------------------------------------------------------------------------
-# Configuration options related to the preprocessor
-#---------------------------------------------------------------------------
-
-# If the ENABLE_PREPROCESSING tag is set to YES, doxygen will evaluate all
-# C-preprocessor directives found in the sources and include files.
-# The default value is: YES.
-
-ENABLE_PREPROCESSING   = YES
-
-# If the MACRO_EXPANSION tag is set to YES, doxygen will expand all macro names
-# in the source code. If set to NO, only conditional compilation will be
-# performed. Macro expansion can be done in a controlled way by setting
-# EXPAND_ONLY_PREDEF to YES.
-# The default value is: NO.
-# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
-
-MACRO_EXPANSION        = YES
-
-# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
-# the macro expansion is limited to the macros specified with the PREDEFINED and
-# EXPAND_AS_DEFINED tags.
-# The default value is: NO.
-# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
-
-EXPAND_ONLY_PREDEF     = YES
-
-# If the SEARCH_INCLUDES tag is set to YES, the include files in the
-# INCLUDE_PATH will be searched if a #include is found.
-# The default value is: YES.
-# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
-
-SEARCH_INCLUDES        = YES
-
-# The INCLUDE_PATH tag can be used to specify one or more directories that
-# contain include files that are not input files but should be processed by the
-# preprocessor.
-# This tag requires that the tag SEARCH_INCLUDES is set to YES.
-
-INCLUDE_PATH           =
-
-# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
-# patterns (like *.h and *.hpp) to filter out the header-files in the
-# directories. If left blank, the patterns specified with FILE_PATTERNS will be
-# used.
-# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
-
-INCLUDE_FILE_PATTERNS  =
-
-# The PREDEFINED tag can be used to specify one or more macro names that are
-# defined before the preprocessor is started (similar to the -D option of e.g.
-# gcc). The argument of the tag is a list of macros of the form: name or
-# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
-# is assumed. To prevent a macro definition from being undefined via #undef or
-# recursively expanded use the := operator instead of the = operator.
-# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
-
-PREDEFINED             =  TDJSON_EXPORT=
-
-# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
-# tag can be used to specify a list of macro names that should be expanded. The
-# macro definition that is found in the sources will be used. Use the PREDEFINED
-# tag if you want to use a different macro definition that overrules the
-# definition found in the source code.
-# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
-
-EXPAND_AS_DEFINED      =
-
-# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
-# remove all references to function-like macros that are alone on a line, have
-# an all uppercase name, and do not end with a semicolon. Such function macros
-# are typically used for boiler-plate code, and will confuse the parser if not
-# removed.
-# The default value is: YES.
-# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
-
-SKIP_FUNCTION_MACROS   = YES
-
-#---------------------------------------------------------------------------
-# Configuration options related to external references
-#---------------------------------------------------------------------------
-
-# The TAGFILES tag can be used to specify one or more tag files. For each tag
-# file the location of the external documentation should be added. The format of
-# a tag file without this location is as follows:
-# TAGFILES = file1 file2 ...
-# Adding location for the tag files is done as follows:
-# TAGFILES = file1=loc1 "file2 = loc2" ...
-# where loc1 and loc2 can be relative or absolute paths or URLs. See the
-# section "Linking to external documentation" for more information about the use
-# of tag files.
-# Note: Each tag file must have a unique name (where the name does NOT include
-# the path). If a tag file is not located in the directory in which doxygen is
-# run, you must also specify the path to the tagfile here.
-
-TAGFILES               =
-
-# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
-# tag file that is based on the input files it reads. See section "Linking to
-# external documentation" for more information about the usage of tag files.
-
-GENERATE_TAGFILE       =
-
-# If the ALLEXTERNALS tag is set to YES, all external class will be listed in
-# the class index. If set to NO, only the inherited external classes will be
-# listed.
-# The default value is: NO.
-
-ALLEXTERNALS           = NO
-
-# If the EXTERNAL_GROUPS tag is set to YES, all external groups will be listed
-# in the modules index. If set to NO, only the current project's groups will be
-# listed.
-# The default value is: YES.
-
-EXTERNAL_GROUPS        = YES
-
-# If the EXTERNAL_PAGES tag is set to YES, all external pages will be listed in
-# the related pages index. If set to NO, only the current project's pages will
-# be listed.
-# The default value is: YES.
-
-EXTERNAL_PAGES         = YES
-
-# The PERL_PATH should be the absolute path and name of the perl script
-# interpreter (i.e. the result of 'which perl').
-# The default file (with absolute path) is: /usr/bin/perl.
-
-PERL_PATH              = /usr/bin/perl
-
-#---------------------------------------------------------------------------
-# Configuration options related to the dot tool
-#---------------------------------------------------------------------------
-
-# If the CLASS_DIAGRAMS tag is set to YES, doxygen will generate a class diagram
-# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
-# NO turns the diagrams off. Note that this option also works with HAVE_DOT
-# disabled, but it is recommended to install and use dot, since it yields more
-# powerful graphs.
-# The default value is: YES.
-
-CLASS_DIAGRAMS         = YES
-
-# You can define message sequence charts within doxygen comments using the \msc
-# command. Doxygen will then run the mscgen tool (see:
-# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
-# documentation. The MSCGEN_PATH tag allows you to specify the directory where
-# the mscgen tool resides. If left empty the tool is assumed to be found in the
-# default search path.
-
-MSCGEN_PATH            =
-
-# You can include diagrams made with dia in doxygen documentation. Doxygen will
-# then run dia to produce the diagram and insert it in the documentation. The
-# DIA_PATH tag allows you to specify the directory where the dia binary resides.
-# If left empty dia is assumed to be found in the default search path.
-
-DIA_PATH               =
-
-# If set to YES the inheritance and collaboration graphs will hide inheritance
-# and usage relations if the target is undocumented or is not a class.
-# The default value is: YES.
-
-HIDE_UNDOC_RELATIONS   = YES
-
-# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
-# available from the path. This tool is part of Graphviz (see:
-# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
-# Bell Labs. The other options in this section have no effect if this option is
-# set to NO
-# The default value is: NO.
-
-HAVE_DOT               = NO
-
-# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
-# to run in parallel. When set to 0 doxygen will base this on the number of
-# processors available in the system. You can set it explicitly to a value
-# larger than 0 to get control over the balance between CPU load and processing
-# speed.
-# Minimum value: 0, maximum value: 32, default value: 0.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_NUM_THREADS        = 0
-
-# When you want a differently looking font in the dot files that doxygen
-# generates you can specify the font name using DOT_FONTNAME. You need to make
-# sure dot is able to find the font, which can be done by putting it in a
-# standard location or by setting the DOTFONTPATH environment variable or by
-# setting DOT_FONTPATH to the directory containing the font.
-# The default value is: Helvetica.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_FONTNAME           = Helvetica
-
-# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
-# dot graphs.
-# Minimum value: 4, maximum value: 24, default value: 10.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_FONTSIZE           = 10
-
-# By default doxygen will tell dot to use the default font as specified with
-# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
-# the path where dot can find it using this tag.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_FONTPATH           =
-
-# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
-# each documented class showing the direct and indirect inheritance relations.
-# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-CLASS_GRAPH            = YES
-
-# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
-# graph for each documented class showing the direct and indirect implementation
-# dependencies (inheritance, containment, and class references variables) of the
-# class with other documented classes.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-COLLABORATION_GRAPH    = YES
-
-# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
-# groups, showing the direct groups dependencies.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-GROUP_GRAPHS           = YES
-
-# If the UML_LOOK tag is set to YES, doxygen will generate inheritance and
-# collaboration diagrams in a style similar to the OMG's Unified Modeling
-# Language.
-# The default value is: NO.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-UML_LOOK               = NO
-
-# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
-# class node. If there are many fields or methods and many nodes the graph may
-# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
-# number of items for each type to make the size more manageable. Set this to 0
-# for no limit. Note that the threshold may be exceeded by 50% before the limit
-# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
-# but if the number exceeds 15, the total amount of fields shown is limited to
-# 10.
-# Minimum value: 0, maximum value: 100, default value: 10.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-UML_LIMIT_NUM_FIELDS   = 10
-
-# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
-# collaboration graphs will show the relations between templates and their
-# instances.
-# The default value is: NO.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-TEMPLATE_RELATIONS     = NO
-
-# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
-# YES then doxygen will generate a graph for each documented file showing the
-# direct and indirect include dependencies of the file with other documented
-# files.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-INCLUDE_GRAPH          = YES
-
-# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
-# set to YES then doxygen will generate a graph for each documented file showing
-# the direct and indirect include dependencies of the file with other documented
-# files.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-INCLUDED_BY_GRAPH      = YES
-
-# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
-# dependency graph for every global function or class method.
-#
-# Note that enabling this option will significantly increase the time of a run.
-# So in most cases it will be better to enable call graphs for selected
-# functions only using the \callgraph command. Disabling a call graph can be
-# accomplished by means of the command \hidecallgraph.
-# The default value is: NO.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-CALL_GRAPH             = NO
-
-# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
-# dependency graph for every global function or class method.
-#
-# Note that enabling this option will significantly increase the time of a run.
-# So in most cases it will be better to enable caller graphs for selected
-# functions only using the \callergraph command. Disabling a caller graph can be
-# accomplished by means of the command \hidecallergraph.
-# The default value is: NO.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-CALLER_GRAPH           = NO
-
-# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
-# hierarchy of all classes instead of a textual one.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-GRAPHICAL_HIERARCHY    = YES
-
-# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
-# dependencies a directory has on other directories in a graphical way. The
-# dependency relations are determined by the #include relations between the
-# files in the directories.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DIRECTORY_GRAPH        = YES
-
-# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
-# generated by dot. For an explanation of the image formats see the section
-# output formats in the documentation of the dot tool (Graphviz (see:
-# http://www.graphviz.org/)).
-# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
-# to make the SVG files visible in IE 9+ (other browsers do not have this
-# requirement).
-# Possible values are: png, jpg, gif, svg, png:gd, png:gd:gd, png:cairo,
-# png:cairo:gd, png:cairo:cairo, png:cairo:gdiplus, png:gdiplus and
-# png:gdiplus:gdiplus.
-# The default value is: png.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_IMAGE_FORMAT       = png
-
-# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
-# enable generation of interactive SVG images that allow zooming and panning.
-#
-# Note that this requires a modern browser other than Internet Explorer. Tested
-# and working are Firefox, Chrome, Safari, and Opera.
-# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
-# the SVG files visible. Older versions of IE do not have SVG support.
-# The default value is: NO.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-INTERACTIVE_SVG        = NO
-
-# The DOT_PATH tag can be used to specify the path where the dot tool can be
-# found. If left blank, it is assumed the dot tool can be found in the path.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_PATH               =
-
-# The DOTFILE_DIRS tag can be used to specify one or more directories that
-# contain dot files that are included in the documentation (see the \dotfile
-# command).
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOTFILE_DIRS           =
-
-# The MSCFILE_DIRS tag can be used to specify one or more directories that
-# contain msc files that are included in the documentation (see the \mscfile
-# command).
-
-MSCFILE_DIRS           =
-
-# The DIAFILE_DIRS tag can be used to specify one or more directories that
-# contain dia files that are included in the documentation (see the \diafile
-# command).
-
-DIAFILE_DIRS           =
-
-# When using plantuml, the PLANTUML_JAR_PATH tag should be used to specify the
-# path where java can find the plantuml.jar file. If left blank, it is assumed
-# PlantUML is not used or called during a preprocessing step. Doxygen will
-# generate a warning when it encounters a \startuml command in this case and
-# will not generate output for the diagram.
-
-PLANTUML_JAR_PATH      =
-
-# When using plantuml, the PLANTUML_CFG_FILE tag can be used to specify a
-# configuration file for plantuml.
-
-PLANTUML_CFG_FILE      =
-
-# When using plantuml, the specified paths are searched for files specified by
-# the !include statement in a plantuml block.
-
-PLANTUML_INCLUDE_PATH  =
-
-# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
-# that will be shown in the graph. If the number of nodes in a graph becomes
-# larger than this value, doxygen will truncate the graph, which is visualized
-# by representing a node as a red box. Note that doxygen if the number of direct
-# children of the root node in a graph is already larger than
-# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
-# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
-# Minimum value: 0, maximum value: 10000, default value: 50.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_GRAPH_MAX_NODES    = 50
-
-# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
-# generated by dot. A depth value of 3 means that only nodes reachable from the
-# root by following a path via at most 3 edges will be shown. Nodes that lay
-# further from the root node will be omitted. Note that setting this option to 1
-# or 2 may greatly reduce the computation time needed for large code bases. Also
-# note that the size of a graph can be further restricted by
-# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
-# Minimum value: 0, maximum value: 1000, default value: 0.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-MAX_DOT_GRAPH_DEPTH    = 0
-
-# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
-# background. This is disabled by default, because dot on Windows does not seem
-# to support this out of the box.
-#
-# Warning: Depending on the platform used, enabling this option may lead to
-# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
-# read).
-# The default value is: NO.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_TRANSPARENT        = NO
-
-# Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate multiple output
-# files in one run (i.e. multiple -o and -T options on the command line). This
-# makes dot run faster, but since only newer versions of dot (>1.8.10) support
-# this, this feature is disabled by default.
-# The default value is: NO.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_MULTI_TARGETS      = NO
-
-# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
-# explaining the meaning of the various boxes and arrows in the dot generated
-# graphs.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-GENERATE_LEGEND        = YES
-
-# If the DOT_CLEANUP tag is set to YES, doxygen will remove the intermediate dot
-# files that are used to generate the various graphs.
-# The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
-
-DOT_CLEANUP            = YES
diff --git a/third-party/td/td/LICENSE_1_0.txt b/third-party/td/td/LICENSE_1_0.txt
deleted file mode 100644
index 36b7cd93cd..0000000000
--- a/third-party/td/td/LICENSE_1_0.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Boost Software License - Version 1.0 - August 17th, 2003
-
-Permission is hereby granted, free of charge, to any person or organization
-obtaining a copy of the software and accompanying documentation covered by
-this license (the "Software") to use, reproduce, display, distribute,
-execute, and transmit the Software, and to prepare derivative works of the
-Software, and to permit third-parties to whom the Software is furnished to
-do so, all subject to the following:
-
-The copyright notices in the Software and this entire statement, including
-the above license grant, this restriction and the following disclaimer,
-must be included in all copies of the Software, in whole or in part, and
-all derivative works of the Software, unless such copies or derivative
-works are solely in the form of machine-executable object code generated by
-a source language processor.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
-SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
-FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
diff --git a/third-party/td/td/README.md b/third-party/td/td/README.md
deleted file mode 100644
index cbc98c8ae2..0000000000
--- a/third-party/td/td/README.md
+++ /dev/null
@@ -1,145 +0,0 @@
-# TDLib
-
-TDLib (Telegram Database library) is a cross-platform library for building [Telegram](https://telegram.org) clients. It can be easily used from almost any programming language.
-
-## Table of Contents
-- [Features](#features)
-- [Examples and documentation](#usage)
-- [Dependencies](#dependencies)
-- [Building](#building)
-- [Using in CMake C++ projects](#using-cxx)
-- [Using in Java projects](#using-java)
-- [Using in .NET projects](#using-dotnet)
-- [Using with other programming languages](#using-json)
-- [License](#license)
-
-<a name="features"></a>
-## Features
-
-`TDLib` has many advantages. Notably `TDLib` is:
-
-* **Cross-platform**: `TDLib` can be used on Android, iOS, Windows, macOS, Linux, FreeBSD, OpenBSD, NetBSD, illumos, Windows Phone, WebAssembly, watchOS, tvOS, visionOS, Tizen, Cygwin. It should also work on other *nix systems with or without minimal effort.
-* **Multilanguage**: `TDLib` can be easily used with any programming language that is able to execute C functions. Additionally, it already has native Java (using `JNI`) bindings and .NET (using `C++/CLI` and `C++/CX`) bindings.
-* **Easy to use**: `TDLib` takes care of all network implementation details, encryption and local data storage.
-* **High-performance**: in the [Telegram Bot API](https://core.telegram.org/bots/api), each `TDLib` instance handles more than 25000 active bots simultaneously.
-* **Well-documented**: all `TDLib` API methods and public interfaces are fully documented.
-* **Consistent**: `TDLib` guarantees that all updates are delivered in the right order.
-* **Reliable**: `TDLib` remains stable on slow and unreliable Internet connections.
-* **Secure**: all local data is encrypted using a user-provided encryption key.
-* **Fully-asynchronous**: requests to `TDLib` don't block each other or anything else, responses are sent when they are available.
-
-<a name="usage"></a>
-## Examples and documentation
-See our [Getting Started](https://core.telegram.org/tdlib/getting-started) tutorial for a description of basic TDLib concepts.
-
-Take a look at our [examples](https://github.com/tdlib/td/blob/master/example/README.md#tdlib-usage-and-build-examples).
-
-See a [TDLib build instructions generator](https://tdlib.github.io/td/build.html) for detailed instructions on how to build TDLib.
-
-See description of our [JSON](#using-json), [C++](#using-cxx), [Java](#using-java) and [.NET](#using-dotnet) interfaces.
-
-See the [td_api.tl](https://github.com/tdlib/td/blob/master/td/generate/scheme/td_api.tl) scheme or the automatically generated [HTML documentation](https://core.telegram.org/tdlib/docs/td__api_8h.html)
-for a list of all available `TDLib` [methods](https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_function.html) and [classes](https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_object.html).
-
-<a name="dependencies"></a>
-## Dependencies
-`TDLib` depends on:
-
-* C++17 compatible compiler (Clang 5.0+, GCC 7.0+, MSVC 19.1+ (Visual Studio 2017.7+), Intel C++ Compiler 19+)
-* OpenSSL
-* zlib
-* gperf (build only)
-* CMake (3.10+, build only)
-* PHP (optional, for documentation generation)
-
-<a name="building"></a>
-## Building
-
-The simplest way to build `TDLib` is to use our [TDLib build instructions generator](https://tdlib.github.io/td/build.html).
-You need only to choose your programming language and target operating system to receive complete build instructions.
-
-In general, you need to install all `TDLib` [dependencies](#dependencies), enter directory containing `TDLib` sources and compile them using CMake:
-
-```
-mkdir build
-cd build
-cmake -DCMAKE_BUILD_TYPE=Release ..
-cmake --build .
-```
-
-To build `TDLib` on low memory devices you can run [SplitSource.php](https://github.com/tdlib/td/blob/master/SplitSource.php) script
-before compiling main `TDLib` source code and compile only needed targets:
-```
-mkdir build
-cd build
-cmake -DCMAKE_BUILD_TYPE=Release ..
-cmake --build . --target prepare_cross_compiling
-cd ..
-php SplitSource.php
-cd build
-cmake --build . --target tdjson
-cmake --build . --target tdjson_static
-cd ..
-php SplitSource.php --undo
-```
-In our tests clang 6.0 with libc++ required less than 500 MB of RAM per file and GCC 4.9/6.3 used less than 1 GB of RAM per file.
-
-<a name="using-cxx"></a>
-## Using in CMake C++ projects
-For C++ projects that use CMake, the best approach is to build `TDLib` as part of your project or to install it system-wide.
-
-There are several libraries that you could use in your CMake project:
-
-* Td::TdJson, Td::TdJsonStatic — dynamic and static version of a JSON interface. This has a simple C interface, so it can be easily used with any programming language that is able to execute C functions.
-  See [td_json_client](https://core.telegram.org/tdlib/docs/td__json__client_8h.html) documentation for more information.
-* Td::TdStatic — static library with C++ interface for general usage.
-  See [ClientManager](https://core.telegram.org/tdlib/docs/classtd_1_1_client_manager.html) and [Client](https://core.telegram.org/tdlib/docs/classtd_1_1_client.html) documentation for more information.
-
-For example, part of your CMakeLists.txt may look like this:
-```
-add_subdirectory(td)
-target_link_libraries(YourTarget PRIVATE Td::TdStatic)
-```
-
-Or you could install `TDLib` and then reference it in your CMakeLists.txt like this:
-```
-find_package(Td 1.8.46 REQUIRED)
-target_link_libraries(YourTarget PRIVATE Td::TdStatic)
-```
-See [example/cpp/CMakeLists.txt](https://github.com/tdlib/td/blob/master/example/cpp/CMakeLists.txt).
-
-<a name="using-java"></a>
-## Using in Java projects
-`TDLib` provides native Java interface through JNI. To enable it, specify option `-DTD_ENABLE_JNI=ON` to CMake.
-
-See [example/java](https://github.com/tdlib/td/tree/master/example/java) for example of using `TDLib` from Java and detailed build and usage instructions.
-
-<a name="using-dotnet"></a>
-## Using in .NET projects
-`TDLib` provides native .NET interface through `C++/CLI` and `C++/CX`. To enable it, specify option `-DTD_ENABLE_DOTNET=ON` to CMake.
-.NET Core supports `C++/CLI` only since version 3.1 and only on Windows, so if older .NET Core is used or portability is needed, then `TDLib` JSON interface should be used through P/Invoke instead.
-
-See [example/csharp](https://github.com/tdlib/td/tree/master/example/csharp) for example of using `TDLib` from C# and detailed build and usage instructions.
-See [example/uwp](https://github.com/tdlib/td/tree/master/example/uwp) for example of using `TDLib` from C# UWP application and detailed build and usage instructions for Visual Studio Extension "TDLib for Universal Windows Platform".
-
-When `TDLib` is built with `TD_ENABLE_DOTNET` option enabled, `C++` documentation is removed from some files. You need to checkout these files to return `C++` documentation back:
-```
-git checkout td/telegram/Client.h td/telegram/Log.h td/tl/TlObject.h
-```
-
-<a name="using-json"></a>
-## Using from other programming languages
-`TDLib` provides efficient native C++, Java, and .NET interfaces.
-But for most use cases we suggest to use the JSON interface, which can be easily used with any programming language that is able to execute C functions.
-See [td_json_client](https://core.telegram.org/tdlib/docs/td__json__client_8h.html) documentation for detailed JSON interface description,
-the [td_api.tl](https://github.com/tdlib/td/blob/master/td/generate/scheme/td_api.tl) scheme or the automatically generated [HTML documentation](https://core.telegram.org/tdlib/docs/td__api_8h.html) for a list of
-all available `TDLib` [methods](https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_function.html) and [classes](https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_object.html).
-
-`TDLib` JSON interface adheres to semantic versioning and versions with the same major version number are binary and backward compatible, but the underlying `TDLib` API can be different for different minor and even patch versions.
-If you need to support different `TDLib` versions, then you can use a value of the `version` option to find exact `TDLib` version to use appropriate API methods.
-
-See [example/python/tdjson_example.py](https://github.com/tdlib/td/blob/master/example/python/tdjson_example.py) for an example of such usage.
-
-<a name="license"></a>
-## License
-`TDLib` is licensed under the terms of the Boost Software License. See [LICENSE_1_0.txt](http://www.boost.org/LICENSE_1_0.txt) for more information.
diff --git a/third-party/td/td/SplitSource.php b/third-party/td/td/SplitSource.php
deleted file mode 100644
index 0e36342f35..0000000000
--- a/third-party/td/td/SplitSource.php
+++ /dev/null
@@ -1,511 +0,0 @@
-<?php
-
-function disjoint_set_find(&$parents, $x) {
-    if ($parents[$x] !== $x) {
-        return $parents[$x] = disjoint_set_find($parents, $parents[$x]);
-    }
-    return $x;
-}
-
-function disjoint_set_union(&$parents, $x, $y) {
-    $x = disjoint_set_find($parents, $x);
-    $y = disjoint_set_find($parents, $y);
-
-    if ($x !== $y) {
-        if (rand(0, 1) == 0) {
-            $parents[$x] = $y;
-        } else {
-            $parents[$y] = $x;
-        }
-    }
-}
-
-function split_file($file, $chunks, $undo) {
-    $cpp_name = "$file.cpp";
-
-    echo "Processing file $cpp_name".PHP_EOL;
-
-    $new_files = array();
-    foreach (range(0, $chunks - 1) as $n) {
-        $new_files[] = "$file$n.cpp";
-    }
-
-    $is_generated = (strpos($file, 'td/generate/') === 0);
-
-    $cmake_file = $is_generated ? 'td/generate/CMakeLists.txt' : 'CMakeLists.txt';
-    $cmake = file_get_contents($cmake_file);
-
-    $cmake_cpp_name = $cpp_name;
-    $cmake_new_files = $new_files;
-    if ($is_generated) {
-        foreach ($cmake_new_files as &$file_ref) {
-            $file_ref = str_replace('td/generate/auto/td', '${TD_AUTO_INCLUDE_DIR}', $file_ref);
-        }
-        $cmake_cpp_name = str_replace('td/generate/auto/td', '${TD_AUTO_INCLUDE_DIR}', $cmake_cpp_name);
-    }
-
-    if ($undo) {
-        foreach ($new_files as $file) {
-            if (file_exists($file)) {
-                echo "Unlinking ".$file.PHP_EOL;
-                unlink($file);
-            }
-        }
-
-        if (strpos($cmake, $cmake_cpp_name) === false) {
-            $cmake = str_replace(implode(PHP_EOL.'  ', $cmake_new_files), $cmake_cpp_name, $cmake);
-            file_put_contents($cmake_file, $cmake);
-        }
-
-        return;
-    }
-
-    if (strpos($cmake, $cmake_cpp_name) !== false) {
-        $cmake = str_replace($cmake_cpp_name, implode(PHP_EOL.'  ', $cmake_new_files), $cmake);
-        file_put_contents($cmake_file, $cmake);
-    }
-
-    if (!file_exists($cpp_name)) {
-        echo "ERROR: skip nonexistent file $cpp_name".PHP_EOL;
-        return;
-    }
-
-    $lines = file($cpp_name);
-    $depth = 0;
-    $target_depth = 1 + $is_generated;
-    $is_static = false;
-    $in_define = false;
-    $in_comment = false;
-    $current = '';
-    $common = '';
-    $functions = array();
-    $namespace_begin = '';
-    $namespace_end = '';
-    foreach ($lines as $line) {
-        $add_depth = strpos($line, 'namespace ') === 0 ? 1 : (strpos($line, '}  // namespace') === 0 ? -1 : 0);
-        if ($add_depth) {
-            # namespace begin/end
-            if ($add_depth > 0) {
-              $depth += $add_depth;
-            }
-            if ($depth <= $target_depth) {
-                if ($add_depth > 0) {
-                    $namespace_begin .= $line;
-                } else {
-                    $namespace_end .= $line;
-                }
-            }
-            if ($add_depth < 0) {
-              $depth += $add_depth;
-            }
-            if ($is_static) {
-                $common .= $current;
-            } else {
-                $functions[] = $current;
-            }
-            $common .= $line;
-            $current = '';
-            $is_static = false;
-            $in_define = false;
-            continue;
-        }
-
-        if (strpos($line, '#undef') === 0 && !trim($current)) {
-            continue;
-        }
-
-        if ($in_comment && strpos($line, '*/') === 0) {
-            $in_comment = false;
-            continue;
-        }
-        if (strpos($line, '/*') === 0) {
-            $in_comment = true;
-        }
-        if ($in_comment) {
-            continue;
-        }
-
-        if ($depth !== $target_depth) {
-            $common .= $line;
-            continue;
-        }
-
-        if (strpos($line, 'static ') === 0 && $depth === $target_depth) {
-            $is_static = true;
-        }
-        if (!trim($current) && strpos($line, '#define ') === 0) {
-            $is_static = true;
-            $in_define = true;
-        }
-
-        $current .= $line;
-        if ((strpos($line, '}') === 0 || ($in_define && !trim($line)) || preg_match('/^[a-z].*;\s*$/i', $line)) && $depth === $target_depth) {
-            # block end
-            if ($is_static) {
-                $common .= $current;
-            } else {
-                $functions[] = $current;
-            }
-            $current = '';
-            $is_static = false;
-            $in_define = false;
-        }
-    }
-    $current = trim($current);
-    if (!empty($current)) {
-        fwrite(STDERR, "ERROR: $current".PHP_EOL);
-        exit();
-    }
-
-    if (count($functions) < $chunks) {
-        fwrite(STDERR, "ERROR: file is too small to be split more".PHP_EOL);
-        return;
-    }
-
-    $deps = array();  // all functions from the same subarray must be in the same file
-    $parents = array();
-    foreach ($functions as $i => $f) {
-        if (preg_match_all('/(?J)create_handler<(?<name>[A-Z][A-Za-z]*)>|'.
-                           '(?<name>[A-Z][A-Za-z]*) (final )?: public (Td::ResultHandler|Request)|'.
-                           '(CREATE_REQUEST|CREATE_NO_ARGS_REQUEST)[(](?<name>[A-Z][A-Za-z]*)|'.
-                           '(?<name>complete_pending_preauthentication_requests)|'.
-                           '(?<name>get_message_history_slice)|'.
-                           '(Up|Down)load(?!ManagerCallback)[a-zA-Z]+C(?<name>allback)|(up|down)load_[a-z_]*_c(?<name>allback)_|'.
-                           '(?<name>lazy_to_json)|'.
-                           '(?<name>LogEvent)[^sA]|'.
-                           '(?<name>parse)[(]|'.
-                           '(?<name>store)[(]/', $f, $matches, PREG_SET_ORDER)) {
-            foreach ($matches as $match) {
-                $name = $match['name'];
-                if ($name === 'parse' || $name === 'store') {
-                    if ($is_generated) {
-                        continue;
-                    }
-                    $name = 'LogEvent';
-                }
-                $deps[$name][] = $i;
-            }
-        }
-        $parents[$i] = $i;
-    }
-
-    foreach ($deps as $func_ids) {
-        foreach ($func_ids as $func_id) {
-            disjoint_set_union($parents, $func_ids[0], $func_id);
-        }
-    }
-    $sets = array();
-    $set_sizes = array();
-    foreach ($functions as $i => $f) {
-        $parent = disjoint_set_find($parents, $i);
-        if (!isset($sets[$parent])) {
-            $sets[$parent] = '';
-            $set_sizes[$parent] = 0;
-        }
-        $sets[$parent] .= $f;
-        $set_sizes[$parent] += strlen($f);
-    }
-    arsort($set_sizes);
-
-    $files = array_fill(0, $chunks, '');
-    $file_sizes = array_fill(0, $chunks, 0);
-    foreach ($set_sizes as $parent => $size) {
-        $file_id = array_search(min($file_sizes), $file_sizes);
-        $files[$file_id] .= $sets[$parent];
-        $file_sizes[$file_id] += $size;
-    }
-
-    foreach ($files as $n => $f) {
-        $new_content = $common.$namespace_begin.$f.$namespace_end;
-
-        $std_methods = array();
-        preg_match_all('/std::[a-z_0-9]*|td::unique(?!_)/', $new_content, $std_methods);
-        $std_methods = array_unique($std_methods[0]);
-
-        $needed_std_headers = array();
-        $type_headers = array(
-            'std::move' => '',
-            'std::vector' => '',
-            'std::string' => '',
-            'std::uint32_t' => '',
-            'std::int32_t' => '',
-            'std::int64_t' => '',
-            'td::unique' => 'algorithm',
-            'std::count_if' => 'algorithm',
-            'std::fill' => 'algorithm',
-            'std::find' => 'algorithm',
-            'std::is_sorted' => 'algorithm',
-            'std::lower_bound' => 'algorithm',
-            'std::max' => 'algorithm',
-            'std::merge' => 'algorithm',
-            'std::min' => 'algorithm',
-            'std::partial_sort' => 'algorithm',
-            'std::partition' => 'algorithm',
-            'std::remove' => 'algorithm',
-            'std::reverse' => 'algorithm',
-            'std::rotate' => 'algorithm',
-            'std::sort' => 'algorithm',
-            'std::stable_sort' => 'algorithm',
-            'std::upper_bound' => 'algorithm',
-            'std::abs' => 'cmath',
-            'std::isfinite' => 'cmath',
-            'std::function' => 'functional',
-            'std::greater' => 'functional',
-            'std::reference_wrapper' => 'functional',
-            'std::make_move_iterator' => 'iterator',
-            'std::numeric_limits' => 'limits',
-            'std::map' => 'map',
-            'std::multimap' => 'map',
-            'std::make_shared' => 'memory',
-            'std::shared_ptr' => 'memory',
-            'std::multiset' => 'set',
-            'std::set' => 'set',
-            'std::get' => 'tuple',
-            'std::make_tuple' => 'tuple',
-            'std::tie' => 'tuple',
-            'std::tuple' => 'tuple',
-            'std::decay_t' => 'type_traits',
-            'std::is_same' => 'type_traits',
-            'std::unordered_map' => 'unordered_map',
-            'std::unordered_set' => 'unordered_set',
-            'std::make_pair' => 'utility',
-            'std::pair' => 'utility',
-            'std::swap' => 'utility');
-        foreach ($type_headers as $type => $header) {
-            if (in_array($type, $std_methods)) {
-                $std_methods = array_diff($std_methods, array($type));
-                if ($header && !in_array($header, $needed_std_headers)) {
-                    $needed_std_headers[] = $header;
-                }
-            }
-        }
-
-        if (!$std_methods) { // know all needed std headers
-            $new_content = preg_replace_callback(
-                '/#include <([a-z_]*)>/',
-                function ($matches) use ($needed_std_headers) {
-                    if (in_array($matches[1], $needed_std_headers)) {
-                        return $matches[0];
-                    }
-                    return '';
-                },
-                $new_content
-            );
-        }
-
-        $td_methods = array(
-            'AccentColorId' => 'AccentColorId',
-            'account_manager[_(-](?![.]get[(][)])|AccountManager[^;>]' => 'AccountManager',
-            'AffiliateType' => 'AffiliateType',
-            'alarm_manager[_(-](?![.]get[(][)])|AlarmManager' => 'AlarmManager',
-            'animations_manager[_(-](?![.]get[(][)])|AnimationsManager[^;>]' => 'AnimationsManager',
-            'attach_menu_manager[_(-](?![.]get[(][)])|AttachMenuManager[^;>]' => 'AttachMenuManager',
-            'audios_manager[_(-](?![.]get[(][)])|AudiosManager' => 'AudiosManager',
-            'auth_manager[_(-](?![.]get[(][)])|AuthManager' => 'AuthManager',
-            'AutoDownloadSettings|[a-z_]*auto_download_settings' => 'AutoDownloadSettings',
-            'autosave_manager[_(-](?![.]get[(][)])|AutosaveManager' => 'AutosaveManager',
-            'BackgroundId' => 'BackgroundId',
-            'background_manager[_(-](?![.]get[(][)])|BackgroundManager' => 'BackgroundManager',
-            'BackgroundType' => 'BackgroundType',
-            'Birthdate' => 'Birthdate',
-            'boost_manager[_(-](?![.]get[(][)])|BoostManager' => 'BoostManager',
-            'bot_info_manager[_(-](?![.]get[(][)])|BotInfoManager' => 'BotInfoManager',
-            'BotMenuButton|[a-z_]*_menu_button' => 'BotMenuButton',
-            'send_bot_custom_query|answer_bot_custom_query|set_bot_updates_status' => 'BotQueries',
-            'bot_recommendation_manager[_(-](?![.]get[(][)])|BotRecommendationManager' => 'BotRecommendationManager',
-            'BotVerification' => 'BotVerification',
-            'BotVerifierSettings' => 'BotVerifierSettings',
-            'BusinessAwayMessage' => 'BusinessAwayMessage',
-            'BusinessBotRights' => 'BusinessBotRights',
-            'BusinessChatLink' => 'BusinessChatLink',
-            'BusinessConnectedBot' => 'BusinessConnectedBot',
-            'BusinessConnectionId' => 'BusinessConnectionId',
-            'business_connection_manager[_(-](?![.]get[(][)])|BusinessConnectionManager' => 'BusinessConnectionManager',
-            'BusinessGreetingMessage' => 'BusinessGreetingMessage',
-            'BusinessInfo|business_info' => 'BusinessInfo',
-            'BusinessIntro' => 'BusinessIntro',
-            'business_manager[_(-](?![.]get[(][)])|BusinessManager' => 'BusinessManager',
-            'BusinessRecipients' => 'BusinessRecipients',
-            'BusinessWorkHours' => 'BusinessWorkHours',
-            'callback_queries_manager[_(-](?![.]get[(][)])|CallbackQueriesManager' => 'CallbackQueriesManager',
-            'CallId' => 'CallId',
-            'call_manager[_(-](?![.]get[(][)])|CallManager' => 'CallManager',
-            'ChannelId' => 'ChannelId',
-            'channel_recommendation_manager[_(-](?![.]get[(][)])|ChannelRecommendationManager' => 'ChannelRecommendationManager',
-            'ChatId' => 'ChatId',
-            'chat_manager[_(-](?![.]get[(][)])|ChatManager([^ ;.]| [^*])' => 'ChatManager',
-            'common_dialog_manager[_(-](?![.]get[(][)])|CommonDialogManager' => 'CommonDialogManager',
-            'connection_state_manager[_(-](?![.]get[(][)])|ConnectionStateManager' => 'ConnectionStateManager',
-            'country_info_manager[_(-](?![.]get[(][)])|CountryInfoManager' => 'CountryInfoManager',
-            'CustomEmojiId' => 'CustomEmojiId',
-            'device_token_manager[_(-](?![.]get[(][)])|DeviceTokenManager' => 'DeviceTokenManager',
-            'DialogAction[^M]' => 'DialogAction',
-            'dialog_action_manager[_(-](?![.]get[(][)])|DialogActionManager' => 'DialogActionManager',
-            'DialogFilter[^A-Z]' => 'DialogFilter',
-            'DialogFilterId' => 'DialogFilterId',
-            'dialog_filter_manager[_(-](?![.]get[(][)])|DialogFilterManager' => 'DialogFilterManager',
-            'DialogId' => 'DialogId',
-            'dialog_invite_link_manager[_(-](?![.]get[(][)])|DialogInviteLinkManager' => 'DialogInviteLinkManager',
-            'DialogListId' => 'DialogListId',
-            'DialogLocation' => 'DialogLocation',
-            'dialog_manager[_(-](?![.]get[(][)])|DialogManager' => 'DialogManager',
-            'DialogParticipantFilter' => 'DialogParticipantFilter',
-            'dialog_participant_manager[_(-](?![.]get[(][)])|DialogParticipantManager' => 'DialogParticipantManager',
-            'DialogSource' => 'DialogSource',
-            'DisallowedGiftsSettings' => 'DisallowedGiftsSettings',
-            'documents_manager[_(-](?![.]get[(][)])|DocumentsManager' => 'DocumentsManager',
-            'download_manager[_(-](?![.]get[(][)])|DownloadManager[^C]' => 'DownloadManager',
-            'DownloadManagerCallback' => 'DownloadManagerCallback',
-            'EmailVerification' => 'EmailVerification',
-            'EmojiGroup' => 'EmojiGroup',
-            'FactCheck' => 'FactCheck',
-            'file_reference_manager[_(-](?![.]get[(][)])|FileReferenceManager|file_references[)]' => 'FileReferenceManager',
-            'file_manager[_(-](?![.]get[(][)])|FileManager([^ ;.]| [^*])|update_file[)]' => 'files/FileManager',
-            'FolderId' => 'FolderId',
-            'forum_topic_manager[_(-](?![.]get[(][)])|ForumTopicManager' => 'ForumTopicManager',
-            'game_manager[_(-](?![.]get[(][)])|GameManager' => 'GameManager',
-            'G[(][)]|Global[^A-Za-z]' => 'Global',
-            'GlobalPrivacySettings' => 'GlobalPrivacySettings',
-            'GroupCallId' => 'GroupCallId',
-            'group_call_manager[_(-](?![.]get[(][)])|GroupCallManager' => 'GroupCallManager',
-            'hashtag_hints[_(-](?![.]get[(][)])|HashtagHints' => 'HashtagHints',
-            'inline_message_manager[_(-](?![.]get[(][)])|InlineMessageManager' => 'InlineMessageManager',
-            'inline_queries_manager[_(-](?![.]get[(][)])|InlineQueriesManager' => 'InlineQueriesManager',
-            'InputBusinessChatLink' => 'InputBusinessChatLink',
-            'language_pack_manager[_(-]|LanguagePackManager' => 'LanguagePackManager',
-            'link_manager[_(-](?![.]get[(][)])|LinkManager' => 'LinkManager',
-            'LogeventIdWithGeneration|add_log_event|delete_log_event|get_erase_log_event_promise|parse_time|store_time' => 'logevent/LogEventHelper',
-            'MessageCopyOptions' => 'MessageCopyOptions',
-            'MessageEffectId' => 'MessageEffectId',
-            'MessageForwardInfo|LastForwardedMessageInfo|forward_info' => 'MessageForwardInfo',
-            'MessageFullId' => 'MessageFullId',
-            'MessageId' => 'MessageId',
-            'message_import_manager[_(-](?![.]get[(][)])|MessageImportManager' => 'MessageImportManager',
-            'message_query_manager[_(-](?![.]get[(][)])|MessageQueryManager' => 'MessageQueryManager',
-            'MessageLinkInfo' => 'MessageLinkInfo',
-            'MessageQuote' => 'MessageQuote',
-            'MessageReaction|UnreadMessageReaction|[a-z_]*message[a-z_]*reaction|reload_paid_reaction_privacy|get_chosen_tags' => 'MessageReaction',
-            'MessageReactor' => 'MessageReactor',
-            'MessageSearchOffset' => 'MessageSearchOffset',
-            '[a-z_]*_message_sender' => 'MessageSender',
-            'messages_manager[_(-](?![.]get[(][)])|MessagesManager' => 'MessagesManager',
-            'MessageThreadInfo' => 'MessageThreadInfo',
-            'MessageTtl' => 'MessageTtl',
-            'MissingInvitee' => 'MissingInvitee',
-            'notification_manager[_(-](?![.]get[(][)])|NotificationManager|notifications[)]' => 'NotificationManager',
-            'notification_settings_manager[_(-](?![.]get[(][)])|NotificationSettingsManager' => 'NotificationSettingsManager',
-            'online_manager[_(-](?![.]get[(][)])|OnlineManager' => 'OnlineManager',
-            'option_manager[_(-](?![.]get[(][)])|OptionManager' => 'OptionManager',
-            'PaidReactionType' => 'PaidReactionType',
-            'password_manager[_(-](?![.]get[(][)])|PasswordManager' => 'PasswordManager',
-            'people_nearby_manager[_(-](?![.]get[(][)])|PeopleNearbyManager' => 'PeopleNearbyManager',
-            'phone_number_manager[_(-](?![.]get[(][)])|PhoneNumberManager' => 'PhoneNumberManager',
-            'PhotoSizeSource' => 'PhotoSizeSource',
-            'poll_manager[_(-](?![.]get[(][)])|PollManager' => 'PollManager',
-            'privacy_manager[_(-](?![.]get[(][)])|PrivacyManager' => 'PrivacyManager',
-            'promo_data_manager[_(-](?![.]get[(][)])|PromoDataManager' => 'PromoDataManager',
-            'PublicDialogType|get_public_dialog_type' => 'PublicDialogType',
-            'quick_reply_manager[_(-](?![.]get[(][)])|QuickReplyManager' => 'QuickReplyManager',
-            'ReactionListType|[a-z_]*_reaction_list_type' => 'ReactionListType',
-            'reaction_manager[_(-](?![.]get[(][)])|ReactionManager' => 'ReactionManager',
-            'ReactionNotificationSettings' => 'ReactionNotificationSettings',
-            'ReactionNotificationsFrom' => 'ReactionNotificationsFrom',
-            'ReactionType|[a-z_]*_reaction_type' => 'ReactionType',
-            'ReferralProgramInfo' => 'ReferralProgramInfo',
-            'referral_program_manager[_(-](?![.]get[(][)])|ReferralProgramManager' => 'ReferralProgramManager',
-            'ReferralProgramParameters' => 'ReferralProgramParameters',
-            'RequestActor|RequestOnceActor' => 'RequestActor',
-            'saved_messages_manager[_(-](?![.]get[(][)])|SavedMessagesManager' => 'SavedMessagesManager',
-            'ScopeNotificationSettings|[a-z_]*_scope_notification_settings' => 'ScopeNotificationSettings',
-            'SecretChatActor' => 'SecretChatActor',
-            'secret_chats_manager[_(-]|SecretChatsManager' => 'SecretChatsManager',
-            'secure_manager[_(-](?![.]get[(][)])|SecureManager' => 'SecureManager',
-            'SentEmailCode' => 'SentEmailCode',
-            'SharedDialog' => 'SharedDialog',
-            'sponsored_message_manager[_(-](?![.]get[(][)])|SponsoredMessageManager' => 'SponsoredMessageManager',
-            'StarAmount' => 'StarAmount',
-            'StarGift[^A-Z]' => 'StarGift',
-            'StarGiftAttribute' => 'StarGiftAttribute',
-            'StarGiftId' => 'StarGiftId',
-            'star_gift_manager[_(-](?![.]get[(][)])|StarGiftManager' => 'StarGiftManager',
-            'StarGiftSettings' => 'StarGiftSettings',
-            'star_manager[_(-](?![.]get[(][)])|StarManager' => 'StarManager',
-            'StarSubscription[^P]' => 'StarSubscription',
-            'StarSubscriptionPricing' => 'StarSubscriptionPricing',
-            'state_manager[_(-](?![.]get[(][)])|StateManager' => 'StateManager',
-            'statistics_manager[_(-](?![.]get[(][)])|StatisticsManager' => 'StatisticsManager',
-            'StickerSetId' => 'StickerSetId',
-            'stickers_manager[_(-](?![.]get[(][)])|StickersManager' => 'StickersManager',
-            'storage_manager[_(-](?![.]get[(][)])|StorageManager' => 'StorageManager',
-            'StoryId' => 'StoryId',
-            'StoryListId' => 'StoryListId',
-            'story_manager[_(-](?![.]get[(][)])|StoryManager' => 'StoryManager',
-            'SuggestedAction|[a-z_]*_suggested_action' => 'SuggestedAction',
-            'suggested_action_manager[_(-](?![.]get[(][)])|SuggestedActionManager' => 'SuggestedActionManager',
-            'SynchronousRequests' => 'SynchronousRequests',
-            'TargetDialogTypes' => 'TargetDialogTypes',
-            'td_api' => 'td_api',
-            'td_db[(][)]|TdDb[^A-Za-z]' => 'TdDb',
-            'telegram_api' => 'telegram_api',
-            'terms_of_service_manager[_(-](?![.]get[(][)])|TermsOfServiceManager' => 'TermsOfServiceManager',
-            'theme_manager[_(-](?![.]get[(][)])|ThemeManager' => 'ThemeManager',
-            'ThemeSettings' => 'ThemeSettings',
-            'time_zone_manager[_(-](?![.]get[(][)])|TimeZoneManager' => 'TimeZoneManager',
-            'TopDialogCategory|get_top_dialog_category' => 'TopDialogCategory',
-            'top_dialog_manager[_(-](?![.]get[(][)])|TopDialogManager' => 'TopDialogManager',
-            'translation_manager[_(-](?![.]get[(][)])|TranslationManager' => 'TranslationManager',
-            'transcription_manager[_(-](?![.]get[(][)])|TranscriptionManager' => 'TranscriptionManager',
-            'updates_manager[_(-](?![.]get[(][)])|UpdatesManager|get_difference[)]|updateSentMessage|dummyUpdate' => 'UpdatesManager',
-            'UserId' => 'UserId',
-            'user_manager[_(-](?![.]get[(][)])|UserManager([^ ;.]| [^*])' => 'UserManager',
-            'UserStarGift' => 'UserStarGift',
-            'video_notes_manager[_(-](?![.]get[(][)])|VideoNotesManager' => 'VideoNotesManager',
-            'videos_manager[_(-](?![.]get[(][)])|VideosManager' => 'VideosManager',
-            'voice_notes_manager[_(-](?![.]get[(][)])|VoiceNotesManager' => 'VoiceNotesManager',
-            'web_app_manager[_(-](?![.]get[(][)])|WebAppManager' => 'WebAppManager',
-            'WebAppOpenParameters' => 'WebAppOpenParameters',
-            'WebPageId(Hash)?' => 'WebPageId',
-            'web_pages_manager[_(-](?![.]get[(][)])|WebPagesManager' => 'WebPagesManager');
-
-        foreach ($td_methods as $pattern => $header) {
-            if (strpos($cpp_name, $header) !== false) {
-                continue;
-            }
-
-            $include_name = '#include "td/telegram/'.$header.'.h"';
-            if (strpos($new_content, $include_name) !== false && preg_match('/[^a-zA-Z0-9_]('.$pattern.')/', str_replace($include_name, '', $new_content)) === 0) {
-                $new_content = str_replace($include_name, '', $new_content);
-            }
-        }
-
-        if (!file_exists($new_files[$n]) || file_get_contents($new_files[$n]) !== $new_content) {
-            echo "Writing file ".$new_files[$n].PHP_EOL;
-            file_put_contents($new_files[$n], $new_content);
-        }
-    }
-}
-
-if (in_array('--help', $argv) || in_array('-h', $argv)) {
-    echo "Usage: php SplitSource.php [OPTION]...\n".
-         "Splits some source files to reduce a maximum amount of RAM needed for compiling a single file.\n".
-         "  -u, --undo Undo all source code changes.\n".
-         "  -h, --help Show this help.\n";
-    exit(2);
-}
-
-$undo = in_array('--undo', $argv) || in_array('-u', $argv);
-$files = array('td/telegram/ChatManager' => 10,
-               'td/telegram/MessagesManager' => 50,
-               'td/telegram/NotificationManager' => 10,
-               'td/telegram/Requests' => 50,
-               'td/telegram/StickersManager' => 10,
-               'td/telegram/StoryManager' => 10,
-               'td/telegram/UpdatesManager' => 10,
-               'td/telegram/UserManager' => 10,
-               'td/generate/auto/td/telegram/td_api' => 10,
-               'td/generate/auto/td/telegram/td_api_json' => 10,
-               'td/generate/auto/td/telegram/telegram_api' => 10);
-
-foreach ($files as $file => $chunks) {
-    split_file($file, $chunks, $undo);
-}
diff --git a/third-party/td/td/TdConfig.cmake b/third-party/td/td/TdConfig.cmake
deleted file mode 100644
index 807a840edf..0000000000
--- a/third-party/td/td/TdConfig.cmake
+++ /dev/null
@@ -1,8 +0,0 @@
-include(CMakeFindDependencyMacro)
-#TODO: write all external dependencies
-if (EXISTS "${CMAKE_CURRENT_LIST_DIR}/TdTargets.cmake")
-  include("${CMAKE_CURRENT_LIST_DIR}/TdTargets.cmake")
-endif()
-if (EXISTS "${CMAKE_CURRENT_LIST_DIR}/TdStaticTargets.cmake")
-  include("${CMAKE_CURRENT_LIST_DIR}/TdStaticTargets.cmake")
-endif()
diff --git a/third-party/td/td/benchmark/CMakeLists.txt b/third-party/td/td/benchmark/CMakeLists.txt
deleted file mode 100644
index a28dcf2327..0000000000
--- a/third-party/td/td/benchmark/CMakeLists.txt
+++ /dev/null
@@ -1,93 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-if (NOT OPENSSL_FOUND)
-  find_package(OpenSSL REQUIRED)
-  find_package(ZLIB REQUIRED)
-endif()
-
-# TODO: all benchmarks in one file
-add_executable(bench_crypto bench_crypto.cpp)
-target_link_libraries(bench_crypto PRIVATE tdutils ${OPENSSL_CRYPTO_LIBRARY} ${CMAKE_DL_LIBS} ${ZLIB_LIBRARIES})
-if (WIN32)
-  if (MINGW)
-    target_link_libraries(bench_crypto PRIVATE ws2_32 mswsock crypt32)
-  else()
-    target_link_libraries(bench_crypto PRIVATE ws2_32 Mswsock Crypt32)
-  endif()
-endif()
-target_include_directories(bench_crypto SYSTEM PRIVATE ${OPENSSL_INCLUDE_DIR})
-
-add_executable(bench_actor bench_actor.cpp)
-target_link_libraries(bench_actor PRIVATE tdactor tdutils)
-
-add_executable(bench_http bench_http.cpp)
-target_link_libraries(bench_http PRIVATE tdnet tdutils)
-
-add_executable(bench_http_server bench_http_server.cpp)
-target_link_libraries(bench_http_server PRIVATE tdnet tdutils)
-
-add_executable(bench_http_server_cheat bench_http_server_cheat.cpp)
-target_link_libraries(bench_http_server_cheat PRIVATE tdnet tdutils)
-
-add_executable(bench_http_server_fast bench_http_server_fast.cpp)
-target_link_libraries(bench_http_server_fast PRIVATE tdnet tdutils)
-
-add_executable(bench_http_reader bench_http_reader.cpp)
-target_link_libraries(bench_http_reader PRIVATE tdnet tdutils)
-
-add_executable(bench_handshake bench_handshake.cpp)
-target_link_libraries(bench_handshake PRIVATE tdmtproto tdutils)
-
-add_executable(bench_db bench_db.cpp)
-target_link_libraries(bench_db PRIVATE tdactor tddb tdutils)
-
-add_executable(bench_tddb bench_tddb.cpp)
-target_link_libraries(bench_tddb PRIVATE tdcore tddb tdutils)
-
-add_executable(bench_misc bench_misc.cpp)
-target_link_libraries(bench_misc PRIVATE tdcore tdutils)
-
-add_executable(check_proxy check_proxy.cpp)
-target_link_libraries(check_proxy PRIVATE tdclient tdutils)
-
-add_executable(check_tls check_tls.cpp)
-target_link_libraries(check_tls PRIVATE tdutils)
-
-add_executable(rmdir rmdir.cpp)
-target_link_libraries(rmdir PRIVATE tdutils)
-
-add_executable(wget wget.cpp)
-target_link_libraries(wget PRIVATE tdnet tdutils)
-
-add_executable(bench_empty bench_empty.cpp)
-target_link_libraries(bench_empty PRIVATE tdutils)
-
-if (NOT WIN32 AND NOT CYGWIN)
-  add_executable(bench_log bench_log.cpp)
-  target_link_libraries(bench_log PRIVATE tdutils)
-
-  set_source_files_properties(bench_queue.cpp PROPERTIES COMPILE_FLAGS -Wno-deprecated-declarations)
-  add_executable(bench_queue bench_queue.cpp)
-  target_link_libraries(bench_queue PRIVATE tdutils)
-endif()
-
-if (TD_TEST_FOLLY AND TD_WITH_ABSEIL)
-  find_package(ABSL QUIET)
-  find_package(folly QUIET)
-  find_package(gflags QUIET)
-
-  if (ABSL_FOUND AND folly_FOUND)
-    add_executable(memory-hashset-memprof EXCLUDE_FROM_ALL hashset_memory.cpp)
-    target_compile_definitions(memory-hashset-memprof PRIVATE USE_MEMPROF=1)
-    target_link_libraries(memory-hashset-memprof PRIVATE tdutils memprof_stat Folly::folly absl::flat_hash_map absl::hash)
-
-    add_executable(memory-hashset-os hashset_memory.cpp)
-    target_compile_definitions(memory-hashset-os PRIVATE USE_MEMPROF=0)
-    target_link_libraries(memory-hashset-os PRIVATE tdutils Folly::folly absl::flat_hash_map absl::hash)
-
-    add_executable(hashmap-build hashmap_build.cpp)
-    target_link_libraries(hashmap-build PRIVATE tdutils Folly::folly absl::flat_hash_map absl::hash)
-  endif()
-endif()
diff --git a/third-party/td/td/benchmark/bench_actor.cpp b/third-party/td/td/benchmark/bench_actor.cpp
deleted file mode 100644
index d2a575e747..0000000000
--- a/third-party/td/td/benchmark/bench_actor.cpp
+++ /dev/null
@@ -1,349 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/SliceBuilder.h"
-
-#if TD_MSVC
-#pragma comment(linker, "/STACK:16777216")
-#endif
-
-struct TestActor final : public td::Actor {
-  static td::int32 actor_count_;
-
-  void start_up() final {
-    actor_count_++;
-    stop();
-  }
-
-  void tear_down() final {
-    if (--actor_count_ == 0) {
-      td::Scheduler::instance()->finish();
-    }
-  }
-};
-
-td::int32 TestActor::actor_count_;
-
-namespace td {
-template <>
-class ActorTraits<TestActor> {
- public:
-  static constexpr bool need_context = false;
-  static constexpr bool need_start_up = true;
-};
-}  // namespace td
-
-class CreateActorBench final : public td::Benchmark {
-  td::unique_ptr<td::ConcurrentScheduler> scheduler_;
-
-  void start_up() final {
-    scheduler_ = td::make_unique<td::ConcurrentScheduler>(0, 0);
-    scheduler_->start();
-  }
-
-  void tear_down() final {
-    scheduler_->finish();
-    scheduler_.reset();
-  }
-
- public:
-  td::string get_description() const final {
-    return "CreateActor";
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      scheduler_->create_actor_unsafe<TestActor>(0, "TestActor").release();
-    }
-    while (scheduler_->run_main(10)) {
-      // empty
-    }
-  }
-};
-
-template <int type>
-class RingBench final : public td::Benchmark {
- public:
-  struct PassActor;
-
- private:
-  int actor_n_ = -1;
-  int thread_n_ = -1;
-  td::vector<td::ActorId<PassActor>> actor_array_;
-  td::unique_ptr<td::ConcurrentScheduler> scheduler_;
-
- public:
-  td::string get_description() const final {
-    static const char *types[] = {"later", "immediate", "raw", "tail", "lambda"};
-    static_assert(0 <= type && type < 5, "");
-    return PSTRING() << "Ring (send_" << types[type] << ") (threads_n = " << thread_n_ << ")";
-  }
-
-  struct PassActor final : public td::Actor {
-    int id = -1;
-    td::ActorId<PassActor> next_actor;
-    int start_n = 0;
-
-    void pass(int n) {
-      // LOG(INFO) << "Pass: " << n;
-      if (n == 0) {
-        td::Scheduler::instance()->finish();
-      } else {
-        if (type == 0) {
-          send_closure_later(next_actor, &PassActor::pass, n - 1);
-        } else if (type == 1) {
-          send_closure(next_actor, &PassActor::pass, n - 1);
-        } else if (type == 2) {
-          send_event(next_actor, td::Event::raw(static_cast<td::uint32>(n - 1)));
-        } else if (type == 3) {
-          if (n % 5000 == 0) {
-            send_closure_later(next_actor, &PassActor::pass, n - 1);
-          } else {
-            // TODO: it is three times faster than send_event
-            // maybe send event could be further optimized?
-            next_actor.get_actor_unsafe()->raw_event(td::Event::raw(static_cast<td::uint32>(n - 1)).data);
-          }
-        } else if (type == 4) {
-          send_lambda(next_actor, [n, ptr = next_actor.get_actor_unsafe()] { ptr->pass(n - 1); });
-        }
-      }
-    }
-
-    void raw_event(const td::Event::Raw &raw) final {
-      pass(static_cast<int>(raw.u32));
-    }
-
-    void start_up() final {
-      yield();
-    }
-    void wakeup() final {
-      if (start_n != 0) {
-        int n = start_n;
-        start_n = 0;
-        pass(n);
-      }
-    }
-  };
-
-  RingBench(int actor_n, int thread_n) : actor_n_(actor_n), thread_n_(thread_n) {
-  }
-
-  void start_up() final {
-    scheduler_ = td::make_unique<td::ConcurrentScheduler>(thread_n_, 0);
-
-    actor_array_ = td::vector<td::ActorId<PassActor>>(actor_n_);
-    for (int i = 0; i < actor_n_; i++) {
-      actor_array_[i] =
-          scheduler_->create_actor_unsafe<PassActor>(thread_n_ ? i % thread_n_ : 0, "PassActor").release();
-      actor_array_[i].get_actor_unsafe()->id = i;
-    }
-    for (int i = 0; i < actor_n_; i++) {
-      actor_array_[i].get_actor_unsafe()->next_actor = actor_array_[(i + 1) % actor_n_];
-    }
-    scheduler_->start();
-  }
-
-  void run(int n) final {
-    // first actor is on main_thread
-    actor_array_[0].get_actor_unsafe()->start_n = td::max(n, 100);
-    while (scheduler_->run_main(10)) {
-      // empty
-    }
-  }
-
-  void tear_down() final {
-    scheduler_->finish();
-    scheduler_.reset();
-  }
-};
-
-template <int type>
-class QueryBench final : public td::Benchmark {
- public:
-  td::string get_description() const final {
-    static const char *types[] = {"callback", "immediate future", "delayed future", "dummy", "lambda", "lambda_future"};
-    static_assert(0 <= type && type < 6, "");
-    return PSTRING() << "QueryBench: " << types[type];
-  }
-
-  class ClientActor final : public td::Actor {
-   public:
-    class Callback {
-     public:
-      Callback() = default;
-      Callback(const Callback &) = delete;
-      Callback &operator=(const Callback &) = delete;
-      Callback(Callback &&) = delete;
-      Callback &operator=(Callback &&) = delete;
-      virtual ~Callback() = default;
-      virtual void on_result(int x) = 0;
-    };
-    explicit ClientActor(td::unique_ptr<Callback> callback) : callback_(std::move(callback)) {
-    }
-    void f(int x) {
-      callback_->on_result(x * x);
-    }
-    void dummy(int x, int *y) {
-      *y = x * x;
-    }
-    void f_immediate_promise(int x, td::PromiseActor<int> &&promise) {
-      promise.set_value(x * x);
-    }
-    void f_promise(td::Promise<> promise) {
-      promise.set_value(td::Unit());
-    }
-
-   private:
-    td::unique_ptr<Callback> callback_;
-  };
-
-  class ServerActor final : public td::Actor {
-   public:
-    class ClientCallback final : public ClientActor::Callback {
-     public:
-      explicit ClientCallback(td::ActorId<ServerActor> server) : server_(server) {
-      }
-      void on_result(int x) final {
-        send_closure(server_, &ServerActor::on_result, x);
-      }
-
-     private:
-      td::ActorId<ServerActor> server_;
-    };
-    void start_up() final {
-      client_ = td::create_actor<ClientActor>("Client", td::make_unique<ClientCallback>(actor_id(this))).release();
-    }
-
-    void on_result(int x) {
-      CHECK(x == n_ * n_);
-      wakeup();
-    }
-
-    void wakeup() final {
-      while (true) {
-        if (n_ < 0) {
-          td::Scheduler::instance()->finish();
-          return;
-        }
-        n_--;
-        if (type == 0) {
-          send_closure(client_, &ClientActor::f, n_);
-          return;
-        } else if (type == 1) {
-          td::PromiseActor<int> promise;
-          td::FutureActor<int> future;
-          init_promise_future(&promise, &future);
-          send_closure(client_, &ClientActor::f_immediate_promise, n_, std::move(promise));
-          CHECK(!future.is_ready());
-          CHECK(!future.empty());
-          CHECK(future.get_state() == td::FutureActor<int>::State::Waiting);
-          // int val = future.move_as_ok();
-          // CHECK(val == n_ * n_);
-        } else if (type == 2) {
-          td::PromiseActor<int> promise;
-          init_promise_future(&promise, &future_);
-          future_.set_event(td::EventCreator::raw(actor_id(), static_cast<td::uint64>(1)));
-          send_closure(client_, &ClientActor::f_immediate_promise, n_, std::move(promise));
-          return;
-        } else if (type == 3) {
-          int res;
-          send_closure(client_, &ClientActor::dummy, n_, &res);
-        } else if (type == 4) {
-          int val = 0;
-          send_lambda(client_, [&] { val = n_ * n_; });
-          CHECK(val == 0 || val == n_ * n_);
-        } else if (type == 5) {
-          send_closure(client_, &ClientActor::f_promise,
-                       td::PromiseCreator::lambda([actor_id = actor_id(this), n = n_](td::Unit) {
-                         send_closure(actor_id, &ServerActor::result, n * n);
-                       }));
-          return;
-        }
-      }
-    }
-
-    void run(int n) {
-      n_ = n;
-      wakeup();
-    }
-
-    void raw_event(const td::Event::Raw &event) final {
-      int val = future_.move_as_ok();
-      CHECK(val == n_ * n_);
-      wakeup();
-    }
-    void result(int val) {
-      CHECK(val == n_ * n_);
-      wakeup();
-    }
-
-   private:
-    td::ActorId<ClientActor> client_;
-    int n_ = 0;
-    td::FutureActor<int> future_;
-  };
-
-  void start_up() final {
-    scheduler_ = td::make_unique<td::ConcurrentScheduler>(0, 0);
-
-    server_ = scheduler_->create_actor_unsafe<ServerActor>(0, "Server");
-    scheduler_->start();
-  }
-
-  void run(int n) final {
-    // first actor is on main_thread
-    {
-      auto guard = scheduler_->get_main_guard();
-      send_closure(server_, &ServerActor::run, n);
-    }
-    while (scheduler_->run_main(10)) {
-      // empty
-    }
-  }
-
-  void tear_down() final {
-    server_.release();
-    scheduler_->finish();
-    scheduler_.reset();
-  }
-
- private:
-  td::unique_ptr<td::ConcurrentScheduler> scheduler_;
-  td::ActorOwn<ServerActor> server_;
-};
-
-int main() {
-  td::init_openssl_threads();
-
-  bench(CreateActorBench());
-  bench(RingBench<4>(504, 0));
-  bench(RingBench<3>(504, 0));
-  bench(RingBench<0>(504, 0));
-  bench(RingBench<1>(504, 0));
-  bench(RingBench<2>(504, 0));
-  bench(QueryBench<5>());
-  bench(QueryBench<4>());
-  bench(QueryBench<3>());
-  bench(QueryBench<2>());
-  bench(QueryBench<1>());
-  bench(QueryBench<0>());
-  bench(RingBench<3>(504, 0));
-  bench(RingBench<0>(504, 10));
-  bench(RingBench<1>(504, 10));
-  bench(RingBench<2>(504, 10));
-  bench(RingBench<0>(504, 2));
-  bench(RingBench<1>(504, 2));
-  bench(RingBench<2>(504, 2));
-}
diff --git a/third-party/td/td/benchmark/bench_crypto.cpp b/third-party/td/td/benchmark/bench_crypto.cpp
deleted file mode 100644
index ae4dbaec7f..0000000000
--- a/third-party/td/td/benchmark/bench_crypto.cpp
+++ /dev/null
@@ -1,528 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/benchmark.h"
-
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/UInt.h"
-
-#include <openssl/evp.h>
-#include <openssl/sha.h>
-
-#include <algorithm>
-#include <array>
-#include <atomic>
-#include <cstdint>
-#include <cstdlib>
-#include <iterator>
-#include <random>
-#include <string>
-#include <vector>
-
-static constexpr std::size_t DATA_SIZE = 8 << 10;
-static constexpr std::size_t SHORT_DATA_SIZE = 64;
-
-#if OPENSSL_VERSION_NUMBER <= 0x10100000L
-class SHA1Bench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-
-  std::string get_description() const final {
-    return PSTRING() << "SHA1 OpenSSL [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      unsigned char md[20];
-      SHA1(data, DATA_SIZE, md);
-    }
-  }
-};
-#endif
-
-class SHA1ShortBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[SHORT_DATA_SIZE];
-
-  std::string get_description() const final {
-    return PSTRING() << "SHA1 [" << SHORT_DATA_SIZE << "B]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-  }
-
-  void run(int n) final {
-    unsigned char md[20];
-    for (int i = 0; i < n; i++) {
-      td::sha1(td::Slice(data, SHORT_DATA_SIZE), md);
-    }
-  }
-};
-
-class SHA256ShortBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[SHORT_DATA_SIZE];
-
-  std::string get_description() const final {
-    return PSTRING() << "SHA256 [" << SHORT_DATA_SIZE << "B]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-  }
-
-  void run(int n) final {
-    unsigned char md[32];
-    for (int i = 0; i < n; i++) {
-      td::sha256(td::Slice(data, SHORT_DATA_SIZE), td::MutableSlice(md, 32));
-    }
-  }
-};
-
-class SHA512ShortBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[SHORT_DATA_SIZE];
-
-  std::string get_description() const final {
-    return PSTRING() << "SHA512 [" << SHORT_DATA_SIZE << "B]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-  }
-
-  void run(int n) final {
-    unsigned char md[64];
-    for (int i = 0; i < n; i++) {
-      td::sha512(td::Slice(data, SHORT_DATA_SIZE), td::MutableSlice(md, 64));
-    }
-  }
-};
-
-class HmacSha256ShortBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[SHORT_DATA_SIZE];
-
-  std::string get_description() const final {
-    return PSTRING() << "HMAC-SHA256 [" << SHORT_DATA_SIZE << "B]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-  }
-
-  void run(int n) final {
-    unsigned char md[32];
-    for (int i = 0; i < n; i++) {
-      td::hmac_sha256(td::Slice(data, td::min(static_cast<std::size_t>(32), SHORT_DATA_SIZE)),
-                      td::Slice(data, SHORT_DATA_SIZE), td::MutableSlice(md, 32));
-    }
-  }
-};
-
-class HmacSha512ShortBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[SHORT_DATA_SIZE];
-
-  std::string get_description() const final {
-    return PSTRING() << "HMAC-SHA512 [" << SHORT_DATA_SIZE << "B]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-  }
-
-  void run(int n) final {
-    unsigned char md[64];
-    for (int i = 0; i < n; i++) {
-      td::hmac_sha512(td::Slice(data, td::min(static_cast<std::size_t>(64), SHORT_DATA_SIZE)),
-                      td::Slice(data, SHORT_DATA_SIZE), td::MutableSlice(md, 64));
-    }
-  }
-};
-
-class AesEcbBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-  td::UInt256 key;
-  td::UInt256 iv;
-
-  std::string get_description() const final {
-    return PSTRING() << "AES ECB OpenSSL [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-    td::Random::secure_bytes(key.raw, sizeof(key));
-    td::Random::secure_bytes(iv.raw, sizeof(iv));
-  }
-
-  void run(int n) final {
-    td::AesState state;
-    state.init(td::as_slice(key), true);
-    td::MutableSlice data_slice(data, DATA_SIZE);
-    for (int i = 0; i <= n; i++) {
-      size_t step = 16;
-      for (size_t offset = 0; offset + step <= data_slice.size(); offset += step) {
-        state.encrypt(data_slice.ubegin() + offset, data_slice.ubegin() + offset, static_cast<int>(step));
-      }
-    }
-  }
-};
-
-class AesIgeEncryptBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-  td::UInt256 key;
-  td::UInt256 iv;
-
-  std::string get_description() const final {
-    return PSTRING() << "AES IGE OpenSSL encrypt [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-    td::Random::secure_bytes(key.raw, sizeof(key));
-    td::Random::secure_bytes(iv.raw, sizeof(iv));
-  }
-
-  void run(int n) final {
-    td::MutableSlice data_slice(data, DATA_SIZE);
-    td::AesIgeState state;
-    state.init(as_slice(key), as_slice(iv), true);
-    for (int i = 0; i < n; i++) {
-      state.encrypt(data_slice, data_slice);
-    }
-  }
-};
-
-class AesIgeDecryptBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-  td::UInt256 key;
-  td::UInt256 iv;
-
-  std::string get_description() const final {
-    return PSTRING() << "AES IGE OpenSSL decrypt [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-    td::Random::secure_bytes(key.raw, sizeof(key));
-    td::Random::secure_bytes(iv.raw, sizeof(iv));
-  }
-
-  void run(int n) final {
-    td::MutableSlice data_slice(data, DATA_SIZE);
-    td::AesIgeState state;
-    state.init(as_slice(key), as_slice(iv), false);
-    for (int i = 0; i < n; i++) {
-      state.decrypt(data_slice, data_slice);
-    }
-  }
-};
-
-class AesCtrBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-  td::UInt256 key;
-  td::UInt128 iv;
-
-  std::string get_description() const final {
-    return PSTRING() << "AES CTR OpenSSL [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-    td::Random::secure_bytes(key.raw, sizeof(key));
-    td::Random::secure_bytes(iv.raw, sizeof(iv));
-  }
-
-  void run(int n) final {
-    td::MutableSlice data_slice(data, DATA_SIZE);
-    td::AesCtrState state;
-    state.init(as_slice(key), as_slice(iv));
-    for (int i = 0; i < n; i++) {
-      state.encrypt(data_slice, data_slice);
-    }
-  }
-};
-
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-class AesCtrOpenSSLBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-  td::UInt256 key;
-  td::UInt128 iv;
-
-  std::string get_description() const final {
-    return PSTRING() << "AES CTR RAW OpenSSL [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-    td::Random::secure_bytes(key.raw, sizeof(key));
-    td::Random::secure_bytes(iv.raw, sizeof(iv));
-  }
-
-  void run(int n) final {
-    EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
-    EVP_EncryptInit_ex(ctx, EVP_aes_256_ctr(), nullptr, key.raw, iv.raw);
-
-    td::MutableSlice data_slice(data, DATA_SIZE);
-    td::AesCtrState state;
-    state.init(as_slice(key), as_slice(iv));
-    for (int i = 0; i < n; i++) {
-      int len = 0;
-      auto int_size = static_cast<int>(DATA_SIZE);
-      EVP_EncryptUpdate(ctx, data_slice.ubegin(), &len, data_slice.ubegin(), int_size);
-      CHECK(len == int_size);
-    }
-
-    EVP_CIPHER_CTX_free(ctx);
-  }
-};
-#endif
-
-class AesCbcDecryptBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-  td::UInt256 key;
-  td::UInt128 iv;
-
-  std::string get_description() const final {
-    return PSTRING() << "AES CBC Decrypt OpenSSL [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-    td::Random::secure_bytes(as_mutable_slice(key));
-    td::Random::secure_bytes(as_mutable_slice(iv));
-  }
-
-  void run(int n) final {
-    td::MutableSlice data_slice(data, DATA_SIZE);
-    for (int i = 0; i < n; i++) {
-      td::aes_cbc_decrypt(as_slice(key), as_mutable_slice(iv), data_slice, data_slice);
-    }
-  }
-};
-
-class AesCbcEncryptBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-  td::UInt256 key;
-  td::UInt128 iv;
-
-  std::string get_description() const final {
-    return PSTRING() << "AES CBC Encrypt OpenSSL [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-    td::Random::secure_bytes(as_mutable_slice(key));
-    td::Random::secure_bytes(as_mutable_slice(iv));
-  }
-
-  void run(int n) final {
-    td::MutableSlice data_slice(data, DATA_SIZE);
-    for (int i = 0; i < n; i++) {
-      td::aes_cbc_encrypt(as_slice(key), as_mutable_slice(iv), data_slice, data_slice);
-    }
-  }
-};
-
-template <bool use_state>
-class AesIgeShortBench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[SHORT_DATA_SIZE];
-  td::UInt256 key;
-  td::UInt256 iv;
-
-  std::string get_description() const final {
-    return PSTRING() << "AES IGE OpenSSL " << (use_state ? "EVP" : "C  ") << "[" << SHORT_DATA_SIZE << "B]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-    td::Random::secure_bytes(as_mutable_slice(key));
-    td::Random::secure_bytes(as_mutable_slice(iv));
-  }
-
-  void run(int n) final {
-    td::MutableSlice data_slice(data, SHORT_DATA_SIZE);
-    for (int i = 0; i < n; i++) {
-      if (use_state) {
-        td::AesIgeState ige;
-        ige.init(as_slice(key), as_slice(iv), false);
-        ige.decrypt(data_slice, data_slice);
-      } else {
-        td::aes_ige_decrypt(as_slice(key), as_mutable_slice(iv), data_slice, data_slice);
-      }
-    }
-  }
-};
-
-BENCH(Rand, "std_rand") {
-  int res = 0;
-  for (int i = 0; i < n; i++) {
-    res ^= std::rand();
-  }
-  td::do_not_optimize_away(res);
-}
-
-BENCH(CppRand, "mt19937_rand") {
-  std::uint_fast32_t res = 0;
-  std::mt19937 g(123);
-  for (int i = 0; i < n; i++) {
-    res ^= g();
-  }
-  td::do_not_optimize_away(res);
-}
-
-BENCH(TdRand32, "td_rand_fast32") {
-  td::uint32 res = 0;
-  for (int i = 0; i < n; i++) {
-    res ^= td::Random::fast_uint32();
-  }
-  td::do_not_optimize_away(res);
-}
-
-BENCH(TdRandFast, "td_rand_fast") {
-  int res = 0;
-  for (int i = 0; i < n; i++) {
-    res ^= td::Random::fast(0, RAND_MAX);
-  }
-  td::do_not_optimize_away(res);
-}
-
-#if !TD_THREAD_UNSUPPORTED
-BENCH(SslRand, "ssl_rand_int32") {
-  std::vector<td::thread> v;
-  std::atomic<td::uint32> sum{0};
-  for (int i = 0; i < 3; i++) {
-    v.emplace_back([&sum, n] {
-      td::int32 res = 0;
-      for (int j = 0; j < n; j++) {
-        res ^= td::Random::secure_int32();
-      }
-      sum += res;
-    });
-  }
-  for (auto &x : v) {
-    x.join();
-  }
-  v.clear();
-  td::do_not_optimize_away(sum.load());
-}
-#endif
-
-BENCH(SslRandBuf, "ssl_rand_bytes") {
-  td::int32 res = 0;
-  std::array<td::int32, 1000> buf;
-  for (int i = 0; i < n; i += static_cast<int>(buf.size())) {
-    td::Random::secure_bytes(reinterpret_cast<td::uint8 *>(buf.data()), sizeof(buf[0]) * buf.size());
-    for (auto x : buf) {
-      res ^= x;
-    }
-  }
-  td::do_not_optimize_away(res);
-}
-
-BENCH(Pbkdf2, "pbkdf2") {
-  std::string password = "cucumber";
-  std::string salt = "abcdefghijklmnopqrstuvw";
-  std::string key(32, ' ');
-  td::pbkdf2_sha256(password, salt, n, key);
-}
-
-class Crc32Bench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-
-  std::string get_description() const final {
-    return PSTRING() << "CRC32 zlib [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-  }
-
-  void run(int n) final {
-    td::uint64 res = 0;
-    for (int i = 0; i < n; i++) {
-      res += td::crc32(td::Slice(data, DATA_SIZE));
-    }
-    td::do_not_optimize_away(res);
-  }
-};
-
-class Crc64Bench final : public td::Benchmark {
- public:
-  alignas(64) unsigned char data[DATA_SIZE];
-
-  std::string get_description() const final {
-    return PSTRING() << "CRC64 Anton [" << (DATA_SIZE >> 10) << "KB]";
-  }
-
-  void start_up() final {
-    std::fill(std::begin(data), std::end(data), static_cast<unsigned char>(123));
-  }
-
-  void run(int n) final {
-    td::uint64 res = 0;
-    for (int i = 0; i < n; i++) {
-      res += td::crc64(td::Slice(data, DATA_SIZE));
-    }
-    td::do_not_optimize_away(res);
-  }
-};
-
-int main() {
-  td::init_openssl_threads();
-  td::bench(AesCtrBench());
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  td::bench(AesCtrOpenSSLBench());
-#endif
-
-  td::bench(AesCbcDecryptBench());
-  td::bench(AesCbcEncryptBench());
-  td::bench(AesIgeShortBench<true>());
-  td::bench(AesIgeShortBench<false>());
-  td::bench(AesIgeEncryptBench());
-  td::bench(AesIgeDecryptBench());
-  td::bench(AesEcbBench());
-
-  td::bench(Pbkdf2Bench());
-  td::bench(RandBench());
-  td::bench(CppRandBench());
-  td::bench(TdRand32Bench());
-  td::bench(TdRandFastBench());
-#if !TD_THREAD_UNSUPPORTED
-  td::bench(SslRandBench());
-#endif
-  td::bench(SslRandBufBench());
-#if OPENSSL_VERSION_NUMBER <= 0x10100000L
-  td::bench(SHA1Bench());
-#endif
-  td::bench(SHA1ShortBench());
-  td::bench(SHA256ShortBench());
-  td::bench(SHA512ShortBench());
-  td::bench(HmacSha256ShortBench());
-  td::bench(HmacSha512ShortBench());
-  td::bench(Crc32Bench());
-  td::bench(Crc64Bench());
-}
diff --git a/third-party/td/td/benchmark/bench_db.cpp b/third-party/td/td/benchmark/bench_db.cpp
deleted file mode 100644
index 16816611c6..0000000000
--- a/third-party/td/td/benchmark/bench_db.cpp
+++ /dev/null
@@ -1,244 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/binlog/Binlog.h"
-#include "td/db/binlog/ConcurrentBinlog.h"
-#include "td/db/BinlogKeyValue.h"
-#include "td/db/DbKey.h"
-#include "td/db/SeqKeyValue.h"
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteKeyValueAsync.h"
-#include "td/db/SqliteKeyValueSafe.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <memory>
-
-template <class KeyValueT>
-class TdKvBench final : public td::Benchmark {
-  td::unique_ptr<td::ConcurrentScheduler> scheduler_;
-  td::string name_;
-
- public:
-  explicit TdKvBench(td::string name) {
-    name_ = std::move(name);
-  }
-
-  td::string get_description() const final {
-    return name_;
-  }
-
-  class Main final : public td::Actor {
-   public:
-    explicit Main(int n) : n_(n) {
-    }
-
-   private:
-    void loop() final {
-      KeyValueT::destroy("test_tddb").ignore();
-
-      class Worker final : public Actor {
-       public:
-        Worker(int n, td::string db_name) : n_(n) {
-          kv_.init(db_name).ensure();
-        }
-
-       private:
-        void loop() final {
-          for (int i = 0; i < n_; i++) {
-            kv_.set(td::to_string(i % 10), td::to_string(i));
-          }
-          td::Scheduler::instance()->finish();
-        }
-        int n_;
-        KeyValueT kv_;
-      };
-      td::create_actor_on_scheduler<Worker>("Worker", 0, n_, "test_tddb").release();
-    }
-    int n_;
-  };
-
-  void start_up_n(int n) final {
-    scheduler_ = td::make_unique<td::ConcurrentScheduler>(1, 0);
-    scheduler_->create_actor_unsafe<Main>(1, "Main", n).release();
-  }
-
-  void run(int n) final {
-    scheduler_->start();
-    while (scheduler_->run_main(10)) {
-      // empty
-    }
-    scheduler_->finish();
-  }
-
-  void tear_down() final {
-    scheduler_.reset();
-  }
-};
-
-template <bool is_encrypted = false>
-class SqliteKVBench final : public td::Benchmark {
-  td::SqliteDb db;
-  td::string get_description() const final {
-    return PSTRING() << "SqliteKV " << td::tag("is_encrypted", is_encrypted);
-  }
-  void start_up() final {
-    td::string path = "testdb.sqlite";
-    td::SqliteDb::destroy(path).ignore();
-    if (is_encrypted) {
-      db = td::SqliteDb::change_key(path, true, td::DbKey::password("cucumber"), td::DbKey::empty()).move_as_ok();
-    } else {
-      db = td::SqliteDb::open_with_key(path, true, td::DbKey::empty()).move_as_ok();
-    }
-    db.exec("PRAGMA encoding=\"UTF-8\"").ensure();
-    db.exec("PRAGMA synchronous=NORMAL").ensure();
-    db.exec("PRAGMA journal_mode=WAL").ensure();
-    db.exec("PRAGMA temp_store=MEMORY").ensure();
-    db.exec("DROP TABLE IF EXISTS KV").ensure();
-    db.exec("CREATE TABLE IF NOT EXISTS KV (k BLOB PRIMARY KEY, v BLOB)").ensure();
-  }
-  void run(int n) final {
-    auto stmt = db.get_statement("REPLACE INTO KV (k, v) VALUES(?1, ?2)").move_as_ok();
-    db.exec("BEGIN TRANSACTION").ensure();
-    for (int i = 0; i < n; i++) {
-      auto key = td::to_string(i % 10);
-      auto value = td::to_string(i);
-      stmt.bind_blob(1, key).ensure();
-      stmt.bind_blob(2, value).ensure();
-      stmt.step().ensure();
-      CHECK(!stmt.can_step());
-      stmt.reset();
-
-      if (i % 10 == 0) {
-        db.exec("COMMIT TRANSACTION").ensure();
-        db.exec("BEGIN TRANSACTION").ensure();
-      }
-    }
-    db.exec("COMMIT TRANSACTION").ensure();
-  }
-};
-
-static td::Status init_db(td::SqliteDb &db) {
-  TRY_STATUS(db.exec("PRAGMA encoding=\"UTF-8\""));
-  TRY_STATUS(db.exec("PRAGMA journal_mode=WAL"));
-
-  TRY_STATUS(db.exec("PRAGMA synchronous=NORMAL"));
-  TRY_STATUS(db.exec("PRAGMA temp_store=MEMORY"));
-  // TRY_STATUS(db.exec("PRAGMA secure_delete=1"));
-
-  return td::Status::OK();
-}
-
-class SqliteKeyValueAsyncBench final : public td::Benchmark {
- public:
-  td::string get_description() const final {
-    return "SqliteKeyValueAsync";
-  }
-  void start_up() final {
-    do_start_up().ensure();
-    scheduler_->start();
-  }
-  void run(int n) final {
-    auto guard = scheduler_->get_main_guard();
-
-    for (int i = 0; i < n; i++) {
-      auto key = td::to_string(i % 10);
-      auto value = td::to_string(i);
-      sqlite_kv_async_->set(key, value, td::Auto());
-    }
-  }
-  void tear_down() final {
-    scheduler_->run_main(0.1);
-    {
-      auto guard = scheduler_->get_main_guard();
-      sqlite_kv_async_.reset();
-      sqlite_kv_safe_.reset();
-      sql_connection_->close_and_destroy();
-    }
-
-    scheduler_->finish();
-    scheduler_.reset();
-  }
-
- private:
-  td::unique_ptr<td::ConcurrentScheduler> scheduler_;
-  std::shared_ptr<td::SqliteConnectionSafe> sql_connection_;
-  std::shared_ptr<td::SqliteKeyValueSafe> sqlite_kv_safe_;
-  td::unique_ptr<td::SqliteKeyValueAsyncInterface> sqlite_kv_async_;
-
-  td::Status do_start_up() {
-    scheduler_ = td::make_unique<td::ConcurrentScheduler>(1, 0);
-
-    auto guard = scheduler_->get_main_guard();
-
-    td::string sql_db_name = "testdb.sqlite";
-    td::SqliteDb::destroy(sql_db_name).ignore();
-    td::SqliteDb::open_with_key(sql_db_name, true, td::DbKey::empty()).move_as_ok();
-
-    sql_connection_ = std::make_shared<td::SqliteConnectionSafe>(sql_db_name, td::DbKey::empty());
-    auto &db = sql_connection_->get();
-    TRY_STATUS(init_db(db));
-
-    sqlite_kv_safe_ = std::make_shared<td::SqliteKeyValueSafe>("common", sql_connection_);
-    sqlite_kv_async_ = create_sqlite_key_value_async(sqlite_kv_safe_, 0);
-
-    return td::Status::OK();
-  }
-};
-
-class SeqKvBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return "SeqKvBench";
-  }
-
-  td::SeqKeyValue kv;
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      kv.set(PSLICE() << i % 10, PSLICE() << i);
-    }
-  }
-};
-
-template <bool is_encrypted = false>
-class BinlogKeyValueBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "BinlogKeyValue " << td::tag("is_encrypted", is_encrypted);
-  }
-
-  td::BinlogKeyValue<td::Binlog> kv;
-  void start_up() final {
-    td::SqliteDb::destroy("test_binlog").ignore();
-    kv.init("test_binlog", is_encrypted ? td::DbKey::password("cucumber") : td::DbKey::empty()).ensure();
-  }
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      kv.set(td::to_string(i % 10), td::to_string(i));
-    }
-  }
-};
-
-int main() {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(WARNING));
-  bench(TdKvBench<td::BinlogKeyValue<td::Binlog>>("BinlogKeyValue<Binlog>"));
-  bench(TdKvBench<td::BinlogKeyValue<td::ConcurrentBinlog>>("BinlogKeyValue<ConcurrentBinlog>"));
-
-  bench(BinlogKeyValueBench<true>());
-  bench(BinlogKeyValueBench<false>());
-  bench(SqliteKVBench<false>());
-  bench(SqliteKVBench<true>());
-  bench(SqliteKeyValueAsyncBench());
-  bench(SeqKvBench());
-}
diff --git a/third-party/td/td/benchmark/bench_empty.cpp b/third-party/td/td/benchmark/bench_empty.cpp
deleted file mode 100644
index 8b4e2c4c34..0000000000
--- a/third-party/td/td/benchmark/bench_empty.cpp
+++ /dev/null
@@ -1,8 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-int main() {
-}
diff --git a/third-party/td/td/benchmark/bench_handshake.cpp b/third-party/td/td/benchmark/bench_handshake.cpp
deleted file mode 100644
index ce3a872e11..0000000000
--- a/third-party/td/td/benchmark/bench_handshake.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/DhCallback.h"
-#include "td/mtproto/DhHandshake.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-#include <map>
-
-#if TD_LINUX || TD_ANDROID || TD_TIZEN
-#include <semaphore.h>
-#endif
-
-static td::int32 g = 3;
-static td::string prime_base64 =
-    "xxyuucaxyQSObFIvcPE_c5gNQCOOPiHBSTTQN1Y9kw9IGYoKp8FAWCKUk9IlMPTb-jNvbgrJJROVQ67UTM58NyD9UfaUWHBaxozU_mtrE6vcl0ZRKW"
-    "kyhFTxj6-MWV9kJHf-lrsqlB1bzR1KyMxJiAcI-ps3jjxPOpBgvuZ8-aSkppWBEFGQfhYnU7VrD2tBDbp02KhLKhSzFE4O8ShHVP0X7ZUNWWW0ud1G"
-    "WC2xF40WnGvEZbDW_5yjko_vW5rk5Bj8Feg-vqD4f6n_Xu1wBQ3tKEn0e_lZ2VaFDOkphR8NgRX2NbEF7i5OFdBLJFS_b0-t8DSxBAMRnNjjuS_MW"
-    "w";
-
-class HandshakeBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return "Handshake";
-  }
-
-  class FakeDhCallback final : public td::mtproto::DhCallback {
-   public:
-    int is_good_prime(td::Slice prime_str) const final {
-      auto it = cache.find(prime_str.str());
-      if (it == cache.end()) {
-        return -1;
-      }
-      return it->second;
-    }
-    void add_good_prime(td::Slice prime_str) const final {
-      cache[prime_str.str()] = 1;
-    }
-    void add_bad_prime(td::Slice prime_str) const final {
-      cache[prime_str.str()] = 0;
-    }
-    mutable std::map<td::string, int> cache;
-  } dh_callback;
-
-  void run(int n) final {
-    td::mtproto::DhHandshake a;
-    td::mtproto::DhHandshake b;
-    auto prime = td::base64url_decode(prime_base64).move_as_ok();
-    td::mtproto::DhHandshake::check_config(g, prime, &dh_callback).ensure();
-    for (int i = 0; i < n; i += 2) {
-      a.set_config(g, prime);
-      b.set_config(g, prime);
-      b.set_g_a(a.get_g_b());
-      a.set_g_a(b.get_g_b());
-      a.run_checks(true, &dh_callback).ensure();
-      b.run_checks(true, &dh_callback).ensure();
-      auto a_key = a.gen_key();
-      auto b_key = b.gen_key();
-      CHECK(a_key.first == b_key.first);
-    }
-  }
-};
-
-int main() {
-  td::bench(HandshakeBench());
-}
diff --git a/third-party/td/td/benchmark/bench_http.cpp b/third-party/td/td/benchmark/bench_http.cpp
deleted file mode 100644
index bac4e712c7..0000000000
--- a/third-party/td/td/benchmark/bench_http.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpOutboundConnection.h"
-#include "td/net/HttpQuery.h"
-#include "td/net/SslStream.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Status.h"
-
-#include <atomic>
-#include <limits>
-
-std::atomic<int> counter;
-
-class HttpClient final : public td::HttpOutboundConnection::Callback {
-  void start_up() final {
-    td::IPAddress addr;
-    addr.init_ipv4_port("127.0.0.1", 8082).ensure();
-    auto fd = td::SocketFd::open(addr);
-    LOG_CHECK(fd.is_ok()) << fd.error();
-    connection_ = td::create_actor<td::HttpOutboundConnection>(
-        "Connect", td::BufferedFd<td::SocketFd>(fd.move_as_ok()), td::SslStream{}, std::numeric_limits<size_t>::max(),
-        0, 0, td::ActorOwn<td::HttpOutboundConnection::Callback>(actor_id(this)));
-    yield();
-    cnt_ = 100000;
-    counter++;
-  }
-
-  void tear_down() final {
-    if (--counter == 0) {
-      td::Scheduler::instance()->finish();
-    }
-  }
-
-  void loop() final {
-    if (cnt_-- < 0) {
-      return stop();
-    }
-    send_closure(connection_, &td::HttpOutboundConnection::write_next, td::BufferSlice("GET / HTTP/1.1\r\n\r\n"));
-    send_closure(connection_, &td::HttpOutboundConnection::write_ok);
-    LOG(INFO) << "SEND";
-  }
-
-  void handle(td::unique_ptr<td::HttpQuery> result) final {
-    loop();
-  }
-
-  void on_connection_error(td::Status error) final {
-    LOG(ERROR) << "ERROR: " << error;
-  }
-
-  td::ActorOwn<td::HttpOutboundConnection> connection_;
-  int cnt_ = 0;
-};
-
-int main() {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
-  auto scheduler = td::make_unique<td::ConcurrentScheduler>(0, 0);
-  scheduler->create_actor_unsafe<HttpClient>(0, "Client1").release();
-  scheduler->create_actor_unsafe<HttpClient>(0, "Client2").release();
-  scheduler->start();
-  while (scheduler->run_main(10)) {
-    // empty
-  }
-  scheduler->finish();
-}
diff --git a/third-party/td/td/benchmark/bench_http_reader.cpp b/third-party/td/td/benchmark/bench_http_reader.cpp
deleted file mode 100644
index 29e9e0f707..0000000000
--- a/third-party/td/td/benchmark/bench_http_reader.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpQuery.h"
-#include "td/net/HttpReader.h"
-
-#include "td/utils/benchmark.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/find_boundary.h"
-#include "td/utils/logging.h"
-
-static std::string http_query = "GET / HTTP/1.1\r\nConnection:keep-alive\r\nhost:127.0.0.1:8080\r\n\r\n";
-static const size_t block_size = 2500;
-
-class HttpReaderBench final : public td::Benchmark {
-  std::string get_description() const final {
-    return "HttpReaderBench";
-  }
-
-  void run(int n) final {
-    auto cnt = static_cast<int>(block_size / http_query.size());
-    td::HttpQuery q;
-    int parsed = 0;
-    int sent = 0;
-    for (int i = 0; i < n; i += cnt) {
-      for (int j = 0; j < cnt; j++) {
-        writer_.append(http_query);
-        sent++;
-      }
-      reader_.sync_with_writer();
-      while (true) {
-        auto wait = http_reader_.read_next(&q).ok();
-        if (wait != 0) {
-          break;
-        }
-        parsed++;
-      }
-    }
-    CHECK(parsed == sent);
-  }
-  td::ChainBufferWriter writer_;
-  td::ChainBufferReader reader_;
-  td::HttpReader http_reader_;
-
-  void start_up() final {
-    writer_ = {};
-    reader_ = writer_.extract_reader();
-    http_reader_.init(&reader_, 10000, 0);
-  }
-};
-
-class BufferBench final : public td::Benchmark {
-  std::string get_description() const final {
-    return "BufferBench";
-  }
-
-  void run(int n) final {
-    auto cnt = static_cast<int>(block_size / http_query.size());
-    for (int i = 0; i < n; i += cnt) {
-      for (int j = 0; j < cnt; j++) {
-        writer_.append(http_query);
-      }
-      reader_.sync_with_writer();
-      for (int j = 0; j < cnt; j++) {
-        auto result = reader_.cut_head(http_query.size());
-      }
-    }
-  }
-  td::ChainBufferWriter writer_;
-  td::ChainBufferReader reader_;
-  td::HttpReader http_reader_;
-
-  void start_up() final {
-    writer_ = {};
-    reader_ = writer_.extract_reader();
-  }
-};
-
-class FindBoundaryBench final : public td::Benchmark {
-  std::string get_description() const final {
-    return "FindBoundaryBench";
-  }
-
-  void run(int n) final {
-    auto cnt = static_cast<int>(block_size / http_query.size());
-    for (int i = 0; i < n; i += cnt) {
-      for (int j = 0; j < cnt; j++) {
-        writer_.append(http_query);
-      }
-      reader_.sync_with_writer();
-      for (int j = 0; j < cnt; j++) {
-        size_t len = 0;
-        find_boundary(reader_.clone(), "\r\n\r\n", len);
-        CHECK(size_t(len) + 4 == http_query.size());
-        auto result = reader_.cut_head(len + 2);
-        reader_.advance(2);
-      }
-    }
-  }
-  td::ChainBufferWriter writer_;
-  td::ChainBufferReader reader_;
-  td::HttpReader http_reader_;
-
-  void start_up() final {
-    writer_ = {};
-    reader_ = writer_.extract_reader();
-  }
-};
-
-int main() {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(WARNING));
-  td::bench(BufferBench());
-  td::bench(FindBoundaryBench());
-  td::bench(HttpReaderBench());
-}
diff --git a/third-party/td/td/benchmark/bench_http_server.cpp b/third-party/td/td/benchmark/bench_http_server.cpp
deleted file mode 100644
index 4e87dbd8e0..0000000000
--- a/third-party/td/td/benchmark/bench_http_server.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpHeaderCreator.h"
-#include "td/net/HttpInboundConnection.h"
-#include "td/net/HttpQuery.h"
-#include "td/net/TcpListener.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Slice.h"
-
-static int cnt = 0;
-
-class HelloWorld final : public td::HttpInboundConnection::Callback {
- public:
-  void handle(td::unique_ptr<td::HttpQuery> query, td::ActorOwn<td::HttpInboundConnection> connection) final {
-    // LOG(ERROR) << *query;
-    td::HttpHeaderCreator hc;
-    td::Slice content = "hello world";
-    //auto content = td::BufferSlice("hello world");
-    hc.init_ok();
-    hc.set_keep_alive();
-    hc.set_content_size(content.size());
-    hc.add_header("Server", "TDLib/test");
-    hc.add_header("Date", "Thu Dec 14 01:41:50 2017");
-    hc.add_header("Content-Type:", "text/html");
-
-    auto res = hc.finish(content);
-    LOG_IF(FATAL, res.is_error()) << res.error();
-    send_closure(connection, &td::HttpInboundConnection::write_next, td::BufferSlice(res.ok()));
-    send_closure(connection.release(), &td::HttpInboundConnection::write_ok);
-  }
-  void hangup() final {
-    LOG(ERROR) << "CLOSE " << cnt--;
-    stop();
-  }
-};
-
-const int N = 0;
-class Server final : public td::TcpListener::Callback {
- public:
-  void start_up() final {
-    listener_ =
-        td::create_actor<td::TcpListener>("Listener", 8082, td::ActorOwn<td::TcpListener::Callback>(actor_id(this)));
-  }
-  void accept(td::SocketFd fd) final {
-    LOG(ERROR) << "ACCEPT " << cnt++;
-    pos_++;
-    auto scheduler_id = pos_ % (N != 0 ? N : 1) + (N != 0);
-    td::create_actor_on_scheduler<td::HttpInboundConnection>(
-        "HttpInboundConnection", scheduler_id, td::BufferedFd<td::SocketFd>(std::move(fd)), 1024 * 1024, 0, 0,
-        td::create_actor_on_scheduler<HelloWorld>("HelloWorld", scheduler_id))
-        .release();
-  }
-  void hangup() final {
-    // may be it should be default?..
-    LOG(ERROR) << "Hanging up..";
-    stop();
-  }
-
- private:
-  td::ActorOwn<td::TcpListener> listener_;
-  int pos_{0};
-};
-
-int main() {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
-  auto scheduler = td::make_unique<td::ConcurrentScheduler>(N, 0);
-  scheduler->create_actor_unsafe<Server>(0, "Server").release();
-  scheduler->start();
-  while (scheduler->run_main(10)) {
-    // empty
-  }
-  scheduler->finish();
-}
diff --git a/third-party/td/td/benchmark/bench_http_server_cheat.cpp b/third-party/td/td/benchmark/bench_http_server_cheat.cpp
deleted file mode 100644
index 3061d34c4b..0000000000
--- a/third-party/td/td/benchmark/bench_http_server_cheat.cpp
+++ /dev/null
@@ -1,132 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpHeaderCreator.h"
-#include "td/net/TcpListener.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <array>
-
-static int cnt = 0;
-
-class HelloWorld final : public td::Actor {
- public:
-  explicit HelloWorld(td::SocketFd socket_fd) : socket_fd_(std::move(socket_fd)) {
-  }
-
- private:
-  td::SocketFd socket_fd_;
-
-  std::array<char, 1024> read_buf;
-  size_t read_new_lines{0};
-
-  td::string hello_;
-  td::string write_buf_;
-  size_t write_pos_{0};
-
-  void start_up() final {
-    td::Scheduler::subscribe(socket_fd_.get_poll_info().extract_pollable_fd(this));
-    td::HttpHeaderCreator hc;
-    td::Slice content = "hello world";
-    //auto content = td::BufferSlice("hello world");
-    hc.init_ok();
-    hc.set_keep_alive();
-    hc.set_content_size(content.size());
-    hc.add_header("Server", "TDLib/test");
-    hc.add_header("Date", "Thu Dec 14 01:41:50 2017");
-    hc.add_header("Content-Type:", "text/html");
-    hello_ = hc.finish(content).ok().str();
-  }
-
-  void loop() final {
-    auto status = do_loop();
-    if (status.is_error()) {
-      td::Scheduler::unsubscribe(socket_fd_.get_poll_info().get_pollable_fd_ref());
-      stop();
-      LOG(ERROR) << "CLOSE: " << status;
-    }
-  }
-  td::Status do_loop() {
-    sync_with_poll(socket_fd_);
-    TRY_STATUS(read_loop());
-    TRY_STATUS(write_loop());
-    if (can_close_local(socket_fd_)) {
-      return td::Status::Error("CLOSE");
-    }
-    return td::Status::OK();
-  }
-  td::Status write_loop() {
-    while (can_write_local(socket_fd_) && write_pos_ < write_buf_.size()) {
-      TRY_RESULT(written, socket_fd_.write(td::Slice(write_buf_).substr(write_pos_)));
-      write_pos_ += written;
-      if (write_pos_ == write_buf_.size()) {
-        write_pos_ = 0;
-        write_buf_.clear();
-      }
-    }
-    return td::Status::OK();
-  }
-  td::Status read_loop() {
-    while (can_read_local(socket_fd_)) {
-      TRY_RESULT(read_size, socket_fd_.read(td::MutableSlice(read_buf.data(), read_buf.size())));
-      for (size_t i = 0; i < read_size; i++) {
-        if (read_buf[i] == '\n') {
-          read_new_lines++;
-          if (read_new_lines == 2) {
-            read_new_lines = 0;
-            write_buf_.append(hello_);
-          }
-        }
-      }
-    }
-    return td::Status::OK();
-  }
-};
-
-const int N = 0;
-class Server final : public td::TcpListener::Callback {
- public:
-  void start_up() final {
-    listener_ =
-        td::create_actor<td::TcpListener>("Listener", 8082, td::ActorOwn<td::TcpListener::Callback>(actor_id(this)));
-  }
-  void accept(td::SocketFd fd) final {
-    LOG(ERROR) << "ACCEPT " << cnt++;
-    pos_++;
-    auto scheduler_id = pos_ % (N != 0 ? N : 1) + (N != 0);
-    td::create_actor_on_scheduler<HelloWorld>("HelloWorld", scheduler_id, std::move(fd)).release();
-  }
-  void hangup() final {
-    // may be it should be default?..
-    LOG(ERROR) << "Hanging up..";
-    stop();
-  }
-
- private:
-  td::ActorOwn<td::TcpListener> listener_;
-  int pos_{0};
-};
-
-int main() {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
-  auto scheduler = td::make_unique<td::ConcurrentScheduler>(N, 0);
-  scheduler->create_actor_unsafe<Server>(0, "Server").release();
-  scheduler->start();
-  while (scheduler->run_main(10)) {
-    // empty
-  }
-  scheduler->finish();
-}
diff --git a/third-party/td/td/benchmark/bench_http_server_fast.cpp b/third-party/td/td/benchmark/bench_http_server_fast.cpp
deleted file mode 100644
index c788255b95..0000000000
--- a/third-party/td/td/benchmark/bench_http_server_fast.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpHeaderCreator.h"
-#include "td/net/HttpQuery.h"
-#include "td/net/HttpReader.h"
-#include "td/net/TcpListener.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-class HttpEchoConnection final : public td::Actor {
- public:
-  explicit HttpEchoConnection(td::SocketFd fd) : fd_(std::move(fd)) {
-  }
-
- private:
-  td::BufferedFd<td::SocketFd> fd_;
-  td::HttpReader reader_;
-  td::HttpQuery query_;
-  void start_up() final {
-    td::Scheduler::subscribe(fd_.get_poll_info().extract_pollable_fd(this));
-    reader_.init(&fd_.input_buffer(), 1024 * 1024, 0);
-  }
-  void tear_down() final {
-    td::Scheduler::unsubscribe_before_close(fd_.get_poll_info().get_pollable_fd_ref());
-    fd_.close();
-  }
-
-  void handle_query() {
-    query_ = td::HttpQuery();
-    td::HttpHeaderCreator hc;
-    td::Slice content = "hello world";
-    //auto content = td::BufferSlice("hello world");
-    hc.init_ok();
-    hc.set_keep_alive();
-    hc.set_content_size(content.size());
-    hc.add_header("Server", "TDLib/test");
-    hc.add_header("Date", "Thu Dec 14 01:41:50 2017");
-    hc.add_header("Content-Type:", "text/html");
-    auto res = hc.finish(content);
-    fd_.output_buffer().append(res.ok());
-  }
-
-  void loop() final {
-    sync_with_poll(fd_);
-    auto status = [&] {
-      TRY_STATUS(loop_read());
-      TRY_STATUS(loop_write());
-      return td::Status::OK();
-    }();
-    if (status.is_error() || can_close_local(fd_)) {
-      stop();
-    }
-  }
-  td::Status loop_read() {
-    TRY_STATUS(fd_.flush_read());
-    while (true) {
-      TRY_RESULT(need, reader_.read_next(&query_));
-      if (need == 0) {
-        handle_query();
-      } else {
-        break;
-      }
-    }
-    return td::Status::OK();
-  }
-  td::Status loop_write() {
-    TRY_STATUS(fd_.flush_write());
-    return td::Status::OK();
-  }
-};
-
-const int N = 8;
-class Server final : public td::TcpListener::Callback {
- public:
-  void start_up() final {
-    listener_ =
-        td::create_actor<td::TcpListener>("Listener", 8082, td::ActorOwn<td::TcpListener::Callback>(actor_id(this)));
-  }
-  void accept(td::SocketFd fd) final {
-    pos_++;
-    auto scheduler_id = pos_ % (N != 0 ? N : 1) + (N != 0);
-    td::create_actor_on_scheduler<HttpEchoConnection>("HttpEchoConnection", scheduler_id, std::move(fd)).release();
-  }
-  void hangup() final {
-    LOG(ERROR) << "Hanging up..";
-    stop();
-  }
-
- private:
-  td::ActorOwn<td::TcpListener> listener_;
-  int pos_{0};
-};
-
-int main() {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
-  auto scheduler = td::make_unique<td::ConcurrentScheduler>(N, 0);
-  scheduler->create_actor_unsafe<Server>(0, "Server").release();
-  scheduler->start();
-  while (scheduler->run_main(10)) {
-    // empty
-  }
-  scheduler->finish();
-}
diff --git a/third-party/td/td/benchmark/bench_log.cpp b/third-party/td/td/benchmark/bench_log.cpp
deleted file mode 100644
index be0b8ed044..0000000000
--- a/third-party/td/td/benchmark/bench_log.cpp
+++ /dev/null
@@ -1,160 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-#include <cstdio>
-#include <fstream>
-#include <iostream>
-#include <ostream>
-#include <streambuf>
-#include <string>
-
-#include <unistd.h>
-
-std::string create_tmp_file() {
-#if TD_ANDROID
-  std::string name = "/data/local/tmp/large_file.txt";
-  unlink(name.c_str());
-  return name;
-#else
-  char file_name[] = "largefileXXXXXX";
-  int fd = mkstemp(file_name);
-  if (fd == -1) {
-    perror("Can't cretate temporary file");
-  }
-  CHECK(fd != -1);
-
-  close(fd);
-  return file_name;
-#endif
-}
-
-class IostreamWriteBench final : public td::Benchmark {
- protected:
-  std::string file_name_;
-  std::ofstream stream;
-  static constexpr std::size_t BUFFER_SIZE = 1 << 20;
-  char buffer[BUFFER_SIZE];
-
- public:
-  std::string get_description() const final {
-    return "ostream (to file, no buf, no flush)";
-  }
-
-  void start_up() final {
-    file_name_ = create_tmp_file();
-    stream.open(file_name_.c_str());
-    CHECK(stream.is_open());
-    //    stream.rdbuf()->pubsetbuf(buffer, BUFFER_SIZE);
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      stream << "This is just for test" << 987654321 << '\n';
-    }
-  }
-
-  void tear_down() final {
-    stream.close();
-    unlink(file_name_.c_str());
-  }
-};
-
-class FILEWriteBench final : public td::Benchmark {
- protected:
-  std::string file_name_;
-  FILE *file;
-  static constexpr std::size_t BUFFER_SIZE = 1 << 20;
-  char buffer[BUFFER_SIZE];
-
- public:
-  std::string get_description() const final {
-    return "std::fprintf (to file, no buf, no flush)";
-  }
-
-  void start_up() final {
-    file_name_ = create_tmp_file();
-    file = fopen(file_name_.c_str(), "w");
-    //    setvbuf(file, buffer, _IOFBF, BUFFER_SIZE);
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      std::fprintf(file, "This is just for test%d\n", 987654321);
-      //      std::fflush(file);
-    }
-  }
-
-  void tear_down() final {
-    std::fclose(file);
-    unlink(file_name_.c_str());
-  }
-};
-
-#if TD_ANDROID
-#include <android/log.h>
-#define ALOG(...) __android_log_print(ANDROID_LOG_VERBOSE, "XXX", __VA_ARGS__)
-class ALogWriteBench final : public td::Benchmark {
- public:
-  std::string get_description() const final {
-    return "android_log";
-  }
-  void start_up() final {
-  }
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      ALOG("This is just for test%d\n", 987654321);
-    }
-  }
-  void tear_down() final {
-  }
-};
-#endif
-
-class LogWriteBench final : public td::Benchmark {
- protected:
-  std::string file_name_;
-  std::ofstream stream;
-  std::streambuf *old_buf;
-  static constexpr std::size_t BUFFER_SIZE = 1 << 20;
-  char buffer[BUFFER_SIZE];
-
- public:
-  std::string get_description() const final {
-    return "td_log (slow in debug mode)";
-  }
-
-  void start_up() final {
-    file_name_ = create_tmp_file();
-    stream.open(file_name_.c_str());
-    CHECK(stream.is_open());
-    old_buf = std::cerr.rdbuf(stream.rdbuf());
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      LOG(DEBUG) << "This is just for test" << 987654321;
-    }
-  }
-
-  void tear_down() final {
-    stream.close();
-    unlink(file_name_.c_str());
-    std::cerr.rdbuf(old_buf);
-  }
-};
-
-int main() {
-  td::bench(LogWriteBench());
-#if TD_ANDROID
-  td::bench(ALogWriteBench());
-#endif
-  td::bench(IostreamWriteBench());
-  td::bench(FILEWriteBench());
-}
diff --git a/third-party/td/td/benchmark/bench_misc.cpp b/third-party/td/td/benchmark/bench_misc.cpp
deleted file mode 100644
index fb52f8f16e..0000000000
--- a/third-party/td/td/benchmark/bench_misc.cpp
+++ /dev/null
@@ -1,841 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/telegram_api.hpp"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/EventFd.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/RwMutex.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/ThreadSafeCounter.h"
-
-#if !TD_WINDOWS
-#include <unistd.h>
-#include <utime.h>
-#endif
-
-#if TD_LINUX || TD_ANDROID || TD_TIZEN
-#include <semaphore.h>
-#endif
-
-#include <algorithm>
-#include <array>
-#include <atomic>
-#include <cstdint>
-#include <set>
-
-class F {
-  td::uint32 &sum;
-
- public:
-  explicit F(td::uint32 &sum) : sum(sum) {
-  }
-
-  template <class T>
-  void operator()(const T &x) const {
-    sum += static_cast<td::uint32>(reinterpret_cast<std::uintptr_t>(&x));
-  }
-};
-
-BENCH(TlCall, "TL Call") {
-  td::tl_object_ptr<td::telegram_api::Function> x = td::make_tl_object<td::telegram_api::account_getWallPapers>(0);
-  td::uint32 res = 0;
-  F f(res);
-  for (int i = 0; i < n; i++) {
-    downcast_call(*x, f);
-  }
-  td::do_not_optimize_away(res);
-}
-
-static td::td_api::object_ptr<td::td_api::file> get_file_object() {
-  return td::td_api::make_object<td::td_api::file>(
-      12345, 123456, 123456,
-      td::td_api::make_object<td::td_api::localFile>(
-          "/android/data/0/data/org.telegram.data/files/photos/12345678901234567890_123.jpg", true, true, false, true,
-          0, 123456, 123456),
-      td::td_api::make_object<td::td_api::remoteFile>("abacabadabacabaeabacabadabacabafabacabadabacabaeabacabadabacaba",
-                                                      "abacabadabacabaeabacabadabacaba", false, true, 123456));
-}
-
-BENCH(ToStringIntSmall, "to_string<int> small") {
-  auto buf = td::StackAllocator::alloc(1000);
-  td::StringBuilder sb(buf.as_slice());
-  for (int i = 0; i < n; i++) {
-    sb << td::Random::fast(0, 100);
-    sb.clear();
-  }
-}
-
-BENCH(ToStringIntBig, "to_string<int> big") {
-  auto buf = td::StackAllocator::alloc(1000);
-  td::StringBuilder sb(buf.as_slice());
-  for (int i = 0; i < n; i++) {
-    sb << 1234567890;
-    sb.clear();
-  }
-}
-
-BENCH(TlToStringUpdateFile, "TL to_string updateFile") {
-  auto x = td::td_api::make_object<td::td_api::updateFile>(get_file_object());
-
-  std::size_t res = 0;
-  for (int i = 0; i < n; i++) {
-    res += to_string(x).size();
-  }
-  td::do_not_optimize_away(res);
-}
-
-BENCH(TlToStringMessage, "TL to_string message") {
-  auto x = td::td_api::make_object<td::td_api::message>();
-  x->id_ = 123456000111;
-  x->sender_id_ = td::td_api::make_object<td::td_api::messageSenderUser>(123456000112);
-  x->chat_id_ = 123456000112;
-  x->sending_state_ = td::td_api::make_object<td::td_api::messageSendingStatePending>(0);
-  x->date_ = 1699999999;
-  auto photo = td::td_api::make_object<td::td_api::photo>();
-  for (int i = 0; i < 4; i++) {
-    photo->sizes_.push_back(td::td_api::make_object<td::td_api::photoSize>(
-        "a", get_file_object(), 160, 160,
-        td::vector<td::int32>{10000, 20000, 30000, 50000, 70000, 90000, 120000, 150000, 180000, 220000}));
-  }
-  x->content_ = td::td_api::make_object<td::td_api::messagePhoto>(
-      std::move(photo), td::td_api::make_object<td::td_api::formattedText>(), false, false, false);
-
-  std::size_t res = 0;
-  for (int i = 0; i < n; i++) {
-    res += to_string(x).size();
-  }
-  td::do_not_optimize_away(res);
-}
-
-#if !TD_EVENTFD_UNSUPPORTED
-BENCH(EventFd, "EventFd") {
-  td::EventFd fd;
-  fd.init();
-  for (int i = 0; i < n; i++) {
-    fd.release();
-    fd.acquire();
-  }
-  fd.close();
-}
-#endif
-
-BENCH(NewInt, "new int + delete") {
-  std::uintptr_t res = 0;
-  for (int i = 0; i < n; i++) {
-    int *x = new int;
-    res += reinterpret_cast<std::uintptr_t>(x);
-    delete x;
-  }
-  td::do_not_optimize_away(res);
-}
-
-BENCH(NewObj, "new struct, then delete") {
-  struct A {
-    td::int32 a = 0;
-    td::int32 b = 0;
-    td::int32 c = 0;
-    td::int32 d = 0;
-  };
-  std::uintptr_t res = 0;
-  A **ptr = new A *[n];
-  for (int i = 0; i < n; i++) {
-    ptr[i] = new A();
-    res += reinterpret_cast<std::uintptr_t>(ptr[i]);
-  }
-  for (int i = 0; i < n; i++) {
-    delete ptr[i];
-  }
-  delete[] ptr;
-  td::do_not_optimize_away(res);
-}
-
-#if !TD_THREAD_UNSUPPORTED
-BENCH(ThreadNew, "new struct, then delete in 2 threads") {
-  NewObjBench a;
-  NewObjBench b;
-  td::thread ta([&] { a.run(n / 2); });
-  td::thread tb([&] { b.run(n - n / 2); });
-  ta.join();
-  tb.join();
-}
-#endif
-/*
-// Too hard for clang (?)
-BENCH(Time, "Clocks::monotonic") {
-  double res = 0;
-  for (int i = 0; i < n; i++) {
-    res += td::Clocks::monotonic();
-  }
-  td::do_not_optimize_away(res);
-}
-*/
-#if !TD_WINDOWS
-class PipeBench final : public td::Benchmark {
- public:
-  int p[2];
-
-  td::string get_description() const final {
-    return "pipe write + read int32";
-  }
-
-  void start_up() final {
-    int res = pipe(p);
-    CHECK(res == 0);
-  }
-
-  void run(int n) final {
-    int res = 0;
-    for (int i = 0; i < n; i++) {
-      int val = 1;
-      auto write_len = write(p[1], &val, sizeof(val));
-      CHECK(write_len == sizeof(val));
-      auto read_len = read(p[0], &val, sizeof(val));
-      CHECK(read_len == sizeof(val));
-      res += val;
-    }
-    td::do_not_optimize_away(res);
-  }
-
-  void tear_down() final {
-    close(p[0]);
-    close(p[1]);
-  }
-};
-#endif
-
-#if TD_LINUX || TD_ANDROID || TD_TIZEN
-class SemBench final : public td::Benchmark {
-  sem_t sem;
-
- public:
-  td::string get_description() const final {
-    return "sem post + wait";
-  }
-
-  void start_up() final {
-    int err = sem_init(&sem, 0, 0);
-    CHECK(err != -1);
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      sem_post(&sem);
-      sem_wait(&sem);
-    }
-  }
-
-  void tear_down() final {
-    sem_destroy(&sem);
-  }
-};
-#endif
-
-#if !TD_WINDOWS
-class UtimeBench final : public td::Benchmark {
- public:
-  void start_up() final {
-    td::FileFd::open("test", td::FileFd::Create | td::FileFd::Write).move_as_ok().close();
-  }
-  td::string get_description() const final {
-    return "utime";
-  }
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      int err = utime("test", nullptr);
-      CHECK(err >= 0);
-      utimbuf buf;
-      buf.modtime = 123;
-      buf.actime = 321;
-      err = utime("test", &buf);
-      CHECK(err >= 0);
-    }
-  }
-};
-#endif
-
-BENCH(Pwrite, "pwrite") {
-  auto fd = td::FileFd::open("test", td::FileFd::Create | td::FileFd::Write).move_as_ok();
-  for (int i = 0; i < n; i++) {
-    fd.pwrite("a", 0).ok();
-  }
-  fd.close();
-}
-
-class CreateFileBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return "create_file";
-  }
-  void start_up() final {
-    td::mkdir("A").ensure();
-  }
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      td::FileFd::open(PSLICE() << "A/" << i, td::FileFd::Write | td::FileFd::Create).move_as_ok().close();
-    }
-  }
-  void tear_down() final {
-    td::rmrf("A/").ignore();
-  }
-};
-
-class WalkPathBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return "walk_path";
-  }
-  void start_up_n(int n) final {
-    td::mkdir("A").ensure();
-    for (int i = 0; i < n; i++) {
-      td::FileFd::open(PSLICE() << "A/" << i, td::FileFd::Write | td::FileFd::Create).move_as_ok().close();
-    }
-  }
-  void run(int n) final {
-    int cnt = 0;
-    td::walk_path("A/", [&](td::CSlice path, auto type) {
-      if (type == td::WalkPath::Type::EnterDir) {
-        return;
-      }
-      td::stat(path).ok();
-      cnt++;
-    }).ignore();
-  }
-  void tear_down() final {
-    td::rmrf("A/").ignore();
-  }
-};
-
-#if !TD_THREAD_UNSUPPORTED
-template <int ThreadN = 2>
-class AtomicReleaseIncBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "AtomicReleaseInc" << ThreadN;
-  }
-
-  static std::atomic<td::uint64> a_;
-  void run(int n) final {
-    td::vector<td::thread> threads;
-    for (int i = 0; i < ThreadN; i++) {
-      threads.emplace_back([&] {
-        for (int i = 0; i < n / ThreadN; i++) {
-          a_.fetch_add(1, std::memory_order_release);
-        }
-      });
-    }
-    for (auto &thread : threads) {
-      thread.join();
-    }
-  }
-};
-template <int ThreadN>
-std::atomic<td::uint64> AtomicReleaseIncBench<ThreadN>::a_;
-
-template <int ThreadN = 2>
-class AtomicReleaseCasIncBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "AtomicReleaseCasInc" << ThreadN;
-  }
-
-  static std::atomic<td::uint64> a_;
-  void run(int n) final {
-    td::vector<td::thread> threads;
-    for (int i = 0; i < ThreadN; i++) {
-      threads.emplace_back([&] {
-        for (int i = 0; i < n / ThreadN; i++) {
-          auto value = a_.load(std::memory_order_relaxed);
-          while (!a_.compare_exchange_strong(value, value + 1, std::memory_order_release, std::memory_order_relaxed)) {
-          }
-        }
-      });
-    }
-    for (auto &thread : threads) {
-      thread.join();
-    }
-  }
-};
-template <int ThreadN>
-std::atomic<td::uint64> AtomicReleaseCasIncBench<ThreadN>::a_;
-
-template <int ThreadN>
-class RwMutexReadBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "RwMutexRead" << ThreadN;
-  }
-  td::RwMutex mutex_;
-  void run(int n) final {
-    td::vector<td::thread> threads;
-    for (int i = 0; i < ThreadN; i++) {
-      threads.emplace_back([&] {
-        for (int i = 0; i < n / ThreadN; i++) {
-          auto lock = mutex_.lock_read();
-        }
-      });
-    }
-    for (auto &thread : threads) {
-      thread.join();
-    }
-  }
-};
-
-template <int ThreadN>
-class RwMutexWriteBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "RwMutexWrite" << ThreadN;
-  }
-  td::RwMutex mutex_;
-  void run(int n) final {
-    td::vector<td::thread> threads;
-    for (int i = 0; i < ThreadN; i++) {
-      threads.emplace_back([&] {
-        for (int i = 0; i < n / ThreadN; i++) {
-          auto lock = mutex_.lock_write();
-        }
-      });
-    }
-    for (auto &thread : threads) {
-      thread.join();
-    }
-  }
-};
-
-class ThreadSafeCounterBench final : public td::Benchmark {
-  static td::ThreadSafeCounter counter_;
-  int thread_count_;
-
-  td::string get_description() const final {
-    return PSTRING() << "ThreadSafeCounter" << thread_count_;
-  }
-  void run(int n) final {
-    counter_.clear();
-    td::vector<td::thread> threads;
-    for (int i = 0; i < thread_count_; i++) {
-      threads.emplace_back([n] {
-        for (int i = 0; i < n; i++) {
-          counter_.add(1);
-        }
-      });
-    }
-    for (auto &thread : threads) {
-      thread.join();
-    }
-    CHECK(counter_.sum() == n * thread_count_);
-  }
-
- public:
-  explicit ThreadSafeCounterBench(int thread_count) : thread_count_(thread_count) {
-  }
-};
-td::ThreadSafeCounter ThreadSafeCounterBench::counter_;
-
-template <bool StrictOrder>
-class AtomicCounterBench final : public td::Benchmark {
-  static std::atomic<td::int64> counter_;
-  int thread_count_;
-
-  td::string get_description() const final {
-    return PSTRING() << "AtomicCounter" << thread_count_;
-  }
-  void run(int n) final {
-    counter_.store(0);
-    td::vector<td::thread> threads;
-    for (int i = 0; i < thread_count_; i++) {
-      threads.emplace_back([n] {
-        for (int i = 0; i < n; i++) {
-          counter_.fetch_add(1, StrictOrder ? std::memory_order_seq_cst : std::memory_order_relaxed);
-        }
-      });
-    }
-    for (auto &thread : threads) {
-      thread.join();
-    }
-    CHECK(counter_.load() == n * thread_count_);
-  }
-
- public:
-  explicit AtomicCounterBench(int thread_count) : thread_count_(thread_count) {
-  }
-};
-template <bool StrictOrder>
-std::atomic<td::int64> AtomicCounterBench<StrictOrder>::counter_;
-
-#endif
-
-class IdDuplicateCheckerOld {
- public:
-  static td::string get_description() {
-    return "Old";
-  }
-  td::Status check(td::uint64 message_id) {
-    if (saved_message_ids_.size() == MAX_SAVED_MESSAGE_IDS) {
-      auto oldest_message_id = *saved_message_ids_.begin();
-      if (message_id < oldest_message_id) {
-        return td::Status::Error(2, PSLICE() << "Ignore very old message " << message_id
-                                             << " older than the oldest known message " << oldest_message_id);
-      }
-    }
-    if (saved_message_ids_.count(message_id) != 0) {
-      return td::Status::Error(1, PSLICE() << "Ignore already processed message " << message_id);
-    }
-
-    saved_message_ids_.insert(message_id);
-    if (saved_message_ids_.size() > MAX_SAVED_MESSAGE_IDS) {
-      saved_message_ids_.erase(saved_message_ids_.begin());
-    }
-    return td::Status::OK();
-  }
-
- private:
-  static constexpr size_t MAX_SAVED_MESSAGE_IDS = 1000;
-  std::set<td::uint64> saved_message_ids_;
-};
-
-template <size_t MAX_SAVED_MESSAGE_IDS>
-class IdDuplicateCheckerNew {
- public:
-  static td::string get_description() {
-    return PSTRING() << "New" << MAX_SAVED_MESSAGE_IDS;
-  }
-  td::Status check(td::uint64 message_id) {
-    auto insert_result = saved_message_ids_.insert(message_id);
-    if (!insert_result.second) {
-      return td::Status::Error(1, PSLICE() << "Ignore already processed message " << message_id);
-    }
-    if (saved_message_ids_.size() == MAX_SAVED_MESSAGE_IDS + 1) {
-      auto begin_it = saved_message_ids_.begin();
-      bool is_very_old = begin_it == insert_result.first;
-      saved_message_ids_.erase(begin_it);
-      if (is_very_old) {
-        return td::Status::Error(2, PSLICE() << "Ignore very old message " << message_id
-                                             << " older than the oldest known message " << *saved_message_ids_.begin());
-      }
-    }
-    return td::Status::OK();
-  }
-
- private:
-  std::set<td::uint64> saved_message_ids_;
-};
-
-class IdDuplicateCheckerNewOther {
- public:
-  static td::string get_description() {
-    return "NewOther";
-  }
-  td::Status check(td::uint64 message_id) {
-    if (!saved_message_ids_.insert(message_id).second) {
-      return td::Status::Error(1, PSLICE() << "Ignore already processed message " << message_id);
-    }
-    if (saved_message_ids_.size() == MAX_SAVED_MESSAGE_IDS + 1) {
-      auto begin_it = saved_message_ids_.begin();
-      bool is_very_old = *begin_it == message_id;
-      saved_message_ids_.erase(begin_it);
-      if (is_very_old) {
-        return td::Status::Error(2, PSLICE() << "Ignore very old message " << message_id
-                                             << " older than the oldest known message " << *saved_message_ids_.begin());
-      }
-    }
-    return td::Status::OK();
-  }
-
- private:
-  static constexpr size_t MAX_SAVED_MESSAGE_IDS = 1000;
-  std::set<td::uint64> saved_message_ids_;
-};
-
-class IdDuplicateCheckerNewSimple {
- public:
-  static td::string get_description() {
-    return "NewSimple";
-  }
-  td::Status check(td::uint64 message_id) {
-    auto insert_result = saved_message_ids_.insert(message_id);
-    if (!insert_result.second) {
-      return td::Status::Error(1, "Ignore already processed message");
-    }
-    if (saved_message_ids_.size() == MAX_SAVED_MESSAGE_IDS + 1) {
-      auto begin_it = saved_message_ids_.begin();
-      bool is_very_old = begin_it == insert_result.first;
-      saved_message_ids_.erase(begin_it);
-      if (is_very_old) {
-        return td::Status::Error(2, "Ignore very old message");
-      }
-    }
-    return td::Status::OK();
-  }
-
- private:
-  static constexpr size_t MAX_SAVED_MESSAGE_IDS = 1000;
-  std::set<td::uint64> saved_message_ids_;
-};
-
-template <size_t max_size>
-class IdDuplicateCheckerArray {
- public:
-  static td::string get_description() {
-    return PSTRING() << "Array" << max_size;
-  }
-  td::Status check(td::uint64 message_id) {
-    if (end_pos_ == 2 * max_size) {
-      std::copy_n(&saved_message_ids_[max_size], max_size, &saved_message_ids_[0]);
-      end_pos_ = max_size;
-    }
-    if (end_pos_ == 0 || message_id > saved_message_ids_[end_pos_ - 1]) {
-      // fast path
-      saved_message_ids_[end_pos_++] = message_id;
-      return td::Status::OK();
-    }
-    if (end_pos_ >= max_size && message_id < saved_message_ids_[0]) {
-      return td::Status::Error(2, PSLICE() << "Ignore very old message " << message_id
-                                           << " older than the oldest known message " << saved_message_ids_[0]);
-    }
-    auto it = std::lower_bound(&saved_message_ids_[0], &saved_message_ids_[end_pos_], message_id);
-    if (*it == message_id) {
-      return td::Status::Error(1, PSLICE() << "Ignore already processed message " << message_id);
-    }
-    std::copy_backward(it, &saved_message_ids_[end_pos_], &saved_message_ids_[end_pos_ + 1]);
-    *it = message_id;
-    ++end_pos_;
-    return td::Status::OK();
-  }
-
- private:
-  std::array<td::uint64, 2 * max_size> saved_message_ids_;
-  std::size_t end_pos_ = 0;
-};
-
-template <class T>
-class DuplicateCheckerBench final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "DuplicateCheckerBench" << T::get_description();
-  }
-  void run(int n) final {
-    T checker_;
-    for (int i = 0; i < n; i++) {
-      checker_.check(i).ensure();
-    }
-  }
-};
-
-template <class T>
-class DuplicateCheckerBenchRepeat final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "DuplicateCheckerBenchRepeat" << T::get_description();
-  }
-  void run(int n) final {
-    T checker_;
-    for (int i = 0; i < n; i++) {
-      auto iter = i >> 10;
-      auto pos = i - (iter << 10);
-      if (pos < 768) {
-        if (iter >= 3 && pos == 0) {
-          auto error = checker_.check((iter - 3) * 768 + pos);
-          CHECK(error.error().code() == 2);
-        }
-        checker_.check(iter * 768 + pos).ensure();
-      } else {
-        checker_.check(iter * 768 + pos - 256).ensure_error();
-      }
-    }
-  }
-};
-
-template <class T>
-class DuplicateCheckerBenchRepeatOnly final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "DuplicateCheckerBenchRepeatOnly" << T::get_description();
-  }
-  void run(int n) final {
-    T checker_;
-    for (int i = 0; i < n; i++) {
-      auto result = checker_.check(i & 255);
-      CHECK(result.is_error() == (i >= 256));
-    }
-  }
-};
-
-template <class T>
-class DuplicateCheckerBenchReverse final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "DuplicateCheckerBenchReverseAdd" << T::get_description();
-  }
-  void run(int n) final {
-    T checker_;
-    for (int i = 0; i < n; i++) {
-      auto pos = i & 255;
-      checker_.check(i - pos + (255 - pos)).ensure();
-    }
-  }
-};
-
-template <class T>
-class DuplicateCheckerBenchEvenOdd final : public td::Benchmark {
-  td::string get_description() const final {
-    return PSTRING() << "DuplicateCheckerBenchEvenOdd" << T::get_description();
-  }
-  void run(int n) final {
-    T checker_;
-    for (int i = 0; i < n; i++) {
-      auto pos = i & 255;
-      checker_.check(i - pos + (pos * 2) % 256 + (pos * 2) / 256).ensure();
-    }
-  }
-};
-
-BENCH(AddToTopStd, "add_to_top std") {
-  td::vector<int> v;
-  for (int i = 0; i < n; i++) {
-    for (size_t j = 0; j < 10; j++) {
-      auto value = td::Random::fast(0, 9);
-      auto it = std::find(v.begin(), v.end(), value);
-      if (it == v.end()) {
-        if (v.size() == 8) {
-          v.back() = value;
-        } else {
-          v.push_back(value);
-        }
-        it = v.end() - 1;
-      }
-      std::rotate(v.begin(), it, it + 1);
-    }
-  }
-}
-
-BENCH(AddToTopTd, "add_to_top td") {
-  td::vector<int> v;
-  for (int i = 0; i < n; i++) {
-    for (size_t j = 0; j < 10; j++) {
-      td::add_to_top(v, 8, td::Random::fast(0, 9));
-    }
-  }
-}
-
-BENCH(AnyOfStd, "any_of std") {
-  td::vector<int> v;
-  for (int i = 0; i < 100; i++) {
-    v.push_back(i);
-  }
-  int res = 0;
-  for (int i = 0; i < n; i++) {
-    int rem = td::Random::fast(0, 127);
-    res += static_cast<int>(std::any_of(v.begin(), v.end(), [rem](int x) { return (x & 127) == rem; }));
-  }
-  td::do_not_optimize_away(res);
-}
-
-BENCH(AnyOfTd, "any_of td") {
-  td::vector<int> v;
-  for (int i = 0; i < 100; i++) {
-    v.push_back(i);
-  }
-  int res = 0;
-  for (int i = 0; i < n; i++) {
-    int rem = td::Random::fast(0, 127);
-    res += static_cast<int>(td::any_of(v, [rem](int x) { return (x & 127) == rem; }));
-  }
-  td::do_not_optimize_away(res);
-}
-
-int main() {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(DEBUG));
-
-  td::bench(AnyOfStdBench());
-  td::bench(AnyOfTdBench());
-
-  td::bench(ToStringIntSmallBench());
-  td::bench(ToStringIntBigBench());
-
-  td::bench(AddToTopStdBench());
-  td::bench(AddToTopTdBench());
-
-  td::bench(TlToStringUpdateFileBench());
-  td::bench(TlToStringMessageBench());
-
-  td::bench(DuplicateCheckerBenchEvenOdd<IdDuplicateCheckerNew<1000>>());
-  td::bench(DuplicateCheckerBenchEvenOdd<IdDuplicateCheckerNew<300>>());
-  td::bench(DuplicateCheckerBenchEvenOdd<IdDuplicateCheckerArray<1000>>());
-  td::bench(DuplicateCheckerBenchEvenOdd<IdDuplicateCheckerArray<300>>());
-
-  td::bench(DuplicateCheckerBenchReverse<IdDuplicateCheckerNew<1000>>());
-  td::bench(DuplicateCheckerBenchReverse<IdDuplicateCheckerNew<300>>());
-  td::bench(DuplicateCheckerBenchReverse<IdDuplicateCheckerArray<1000>>());
-  td::bench(DuplicateCheckerBenchReverse<IdDuplicateCheckerArray<300>>());
-
-  td::bench(DuplicateCheckerBenchRepeatOnly<IdDuplicateCheckerNew<1000>>());
-  td::bench(DuplicateCheckerBenchRepeatOnly<IdDuplicateCheckerNew<300>>());
-  td::bench(DuplicateCheckerBenchRepeatOnly<IdDuplicateCheckerArray<1000>>());
-  td::bench(DuplicateCheckerBenchRepeatOnly<IdDuplicateCheckerArray<300>>());
-
-  td::bench(DuplicateCheckerBenchRepeat<IdDuplicateCheckerOld>());
-  td::bench(DuplicateCheckerBenchRepeat<IdDuplicateCheckerNew<1000>>());
-  td::bench(DuplicateCheckerBenchRepeat<IdDuplicateCheckerNewOther>());
-  td::bench(DuplicateCheckerBenchRepeat<IdDuplicateCheckerNewSimple>());
-  td::bench(DuplicateCheckerBenchRepeat<IdDuplicateCheckerNew<300>>());
-  td::bench(DuplicateCheckerBenchRepeat<IdDuplicateCheckerArray<1000>>());
-  td::bench(DuplicateCheckerBenchRepeat<IdDuplicateCheckerArray<300>>());
-
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerOld>());
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerNew<1000>>());
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerNewOther>());
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerNewSimple>());
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerNew<300>>());
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerNew<100>>());
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerNew<10>>());
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerArray<1000>>());
-  td::bench(DuplicateCheckerBench<IdDuplicateCheckerArray<300>>());
-
-#if !TD_THREAD_UNSUPPORTED
-  for (int i = 1; i <= 16; i *= 2) {
-    td::bench(ThreadSafeCounterBench(i));
-    td::bench(AtomicCounterBench<false>(i));
-    td::bench(AtomicCounterBench<true>(i));
-  }
-
-  td::bench(AtomicReleaseIncBench<1>());
-  td::bench(AtomicReleaseIncBench<2>());
-  td::bench(AtomicReleaseCasIncBench<1>());
-  td::bench(AtomicReleaseCasIncBench<2>());
-  td::bench(RwMutexWriteBench<1>());
-  td::bench(RwMutexReadBench<1>());
-  td::bench(RwMutexWriteBench<2>());
-  td::bench(RwMutexReadBench<2>());
-#endif
-#if !TD_WINDOWS
-  td::bench(UtimeBench());
-#endif
-  td::bench(WalkPathBench());
-  td::bench(CreateFileBench());
-  td::bench(PwriteBench());
-
-  td::bench(TlCallBench());
-#if !TD_THREAD_UNSUPPORTED
-  td::bench(ThreadNewBench());
-#endif
-#if !TD_EVENTFD_UNSUPPORTED
-  td::bench(EventFdBench());
-#endif
-  td::bench(NewObjBench());
-  td::bench(NewIntBench());
-#if !TD_WINDOWS
-  td::bench(PipeBench());
-#endif
-#if TD_LINUX || TD_ANDROID || TD_TIZEN
-  td::bench(SemBench());
-#endif
-}
diff --git a/third-party/td/td/benchmark/bench_queue.cpp b/third-party/td/td/benchmark/bench_queue.cpp
deleted file mode 100644
index 9c94c857c2..0000000000
--- a/third-party/td/td/benchmark/bench_queue.cpp
+++ /dev/null
@@ -1,932 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/MpscPollableQueue.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/queue.h"
-#include "td/utils/Random.h"
-
-// TODO: check system calls
-// TODO: all return values must be checked
-
-#include <atomic>
-
-#if TD_PORT_POSIX
-#include <pthread.h>
-#include <sched.h>
-#include <semaphore.h>
-#include <sys/syscall.h>
-#include <unistd.h>
-#endif
-
-#if TD_LINUX
-#include <sys/eventfd.h>
-#endif
-
-#define MODE std::memory_order_relaxed
-
-// void set_affinity(int mask) {
-//   pid_t pid = gettid();
-//   int syscallres = syscall(__NR_sched_setaffinity, pid, sizeof(mask), &mask);
-//   if (syscallres) {
-//     perror("Failed to set affinity");
-//   }
-// }
-
-using qvalue_t = int;
-
-class Backoff {
-  int cnt = 0;
-
- public:
-  bool next() {
-    cnt++;
-    if (cnt < 50) {
-      return true;
-    } else {
-      td::usleep_for(1);
-      return cnt < 500;
-    }
-  }
-};
-
-#if TD_PORT_POSIX
-// Just for testing, not production
-class PipeQueue {
-  int input;
-  int output;
-
- public:
-  void init() {
-    int new_pipe[2];
-    int res = pipe(new_pipe);
-    CHECK(res == 0);
-    output = new_pipe[0];
-    input = new_pipe[1];
-  }
-
-  void put(qvalue_t value) {
-    auto len = write(input, &value, sizeof(value));
-    CHECK(len == sizeof(value));
-  }
-
-  qvalue_t get() {
-    qvalue_t res;
-    auto len = read(output, &res, sizeof(res));
-    CHECK(len == sizeof(res));
-    return res;
-  }
-
-  void destroy() {
-    close(input);
-    close(output);
-  }
-};
-
-class VarQueue {
-  std::atomic<qvalue_t> data{0};
-
- public:
-  void init() {
-    data.store(-1, MODE);
-  }
-
-  void put(qvalue_t value) {
-    data.store(value, MODE);
-  }
-
-  qvalue_t try_get() {
-    __sync_synchronize();  // TODO: it is wrong place for barrier, but it results in fastest queue
-    qvalue_t res = data.load(MODE);
-    return res;
-  }
-
-  void acquire() {
-    data.store(-1, MODE);
-  }
-
-  qvalue_t get() {
-    qvalue_t res;
-    Backoff backoff;
-
-    do {
-      res = try_get();
-    } while (res == -1 && (backoff.next(), true));
-    acquire();
-
-    return res;
-  }
-
-  void destroy() {
-  }
-};
-
-class SemQueue {
-  sem_t sem;
-  VarQueue q;
-
- public:
-  void init() {
-    q.init();
-    sem_init(&sem, 0, 0);
-  }
-
-  void put(qvalue_t value) {
-    q.put(value);
-    sem_post(&sem);
-  }
-
-  qvalue_t get() {
-    sem_wait(&sem);
-    qvalue_t res = q.get();
-    return res;
-  }
-
-  void destroy() {
-    q.destroy();
-    sem_destroy(&sem);
-  }
-
-  // HACK for benchmark
-  void reader_flush() {
-  }
-
-  void writer_flush() {
-  }
-
-  void writer_put(qvalue_t value) {
-    put(value);
-  }
-
-  int reader_wait() {
-    return 1;
-  }
-
-  qvalue_t reader_get_unsafe() {
-    return get();
-  }
-};
-#endif
-
-#if TD_LINUX
-class EventfdQueue {
-  int fd;
-  VarQueue q;
-
- public:
-  void init() {
-    q.init();
-    fd = eventfd(0, 0);
-  }
-  void put(qvalue_t value) {
-    q.put(value);
-    td::int64 x = 1;
-    auto len = write(fd, &x, sizeof(x));
-    CHECK(len == sizeof(x));
-  }
-  qvalue_t get() {
-    td::int64 x;
-    auto len = read(fd, &x, sizeof(x));
-    CHECK(len == sizeof(x));
-    CHECK(x == 1);
-    return q.get();
-  }
-  void destroy() {
-    q.destroy();
-    close(fd);
-  }
-};
-#endif
-
-const int queue_buf_size = 1 << 10;
-
-class BufferQueue {
-  struct node {
-    qvalue_t val;
-    char pad[64 - sizeof(std::atomic<qvalue_t>)];
-  };
-  node q[queue_buf_size];
-
-  struct Position {
-    std::atomic<td::uint32> i{0};
-    char pad[64 - sizeof(std::atomic<td::uint32>)];
-
-    td::uint32 local_read_i;
-    td::uint32 local_write_i;
-    char pad2[64 - sizeof(td::uint32) * 2];
-
-    void init() {
-      i = 0;
-      local_read_i = 0;
-      local_write_i = 0;
-    }
-  };
-
-  Position writer;
-  Position reader;
-
- public:
-  void init() {
-    writer.init();
-    reader.init();
-  }
-
-  bool reader_empty() {
-    return reader.local_write_i == reader.local_read_i;
-  }
-
-  bool writer_empty() {
-    return writer.local_write_i == writer.local_read_i + queue_buf_size;
-  }
-
-  int reader_ready() {
-    return static_cast<int>(reader.local_write_i - reader.local_read_i);
-  }
-
-  int writer_ready() {
-    return static_cast<int>(writer.local_read_i + queue_buf_size - writer.local_write_i);
-  }
-
-  qvalue_t get_unsafe() {
-    return q[reader.local_read_i++ & (queue_buf_size - 1)].val;
-  }
-
-  void flush_reader() {
-    reader.i.store(reader.local_read_i, std::memory_order_release);
-  }
-
-  int update_reader() {
-    reader.local_write_i = writer.i.load(std::memory_order_acquire);
-    return reader_ready();
-  }
-
-  void put_unsafe(qvalue_t val) {
-    q[writer.local_write_i++ & (queue_buf_size - 1)].val = val;
-  }
-
-  void flush_writer() {
-    writer.i.store(writer.local_write_i, std::memory_order_release);
-  }
-
-  int update_writer() {
-    writer.local_read_i = reader.i.load(std::memory_order_acquire);
-    return writer_ready();
-  }
-
-  int wait_reader() {
-    Backoff backoff;
-    int res = 0;
-    while (res == 0) {
-      backoff.next();
-      res = update_reader();
-    }
-    return res;
-  }
-
-  qvalue_t get_noflush() {
-    if (!reader_empty()) {
-      return get_unsafe();
-    }
-
-    Backoff backoff;
-    while (true) {
-      backoff.next();
-      if (update_reader()) {
-        return get_unsafe();
-      }
-    }
-  }
-
-  qvalue_t get() {
-    qvalue_t res = get_noflush();
-    flush_reader();
-    return res;
-  }
-
-  void put_noflush(qvalue_t val) {
-    if (!writer_empty()) {
-      put_unsafe(val);
-      return;
-    }
-    if (!update_writer()) {
-      LOG(FATAL) << "Put strong failed";
-    }
-    put_unsafe(val);
-  }
-
-  void put(qvalue_t val) {
-    put_noflush(val);
-    flush_writer();
-  }
-
-  void destroy() {
-  }
-};
-
-#if TD_LINUX
-class BufferedFdQueue {
-  int fd;
-  std::atomic<int> wait_flag{0};
-  BufferQueue q;
-  char pad[64];
-
- public:
-  void init() {
-    q.init();
-    fd = eventfd(0, 0);
-    (void)pad[0];
-  }
-  void put(qvalue_t value) {
-    q.put(value);
-    td::int64 x = 1;
-    __sync_synchronize();
-    if (wait_flag.load(MODE)) {
-      auto len = write(fd, &x, sizeof(x));
-      CHECK(len == sizeof(x));
-    }
-  }
-  void put_noflush(qvalue_t value) {
-    q.put_noflush(value);
-  }
-  void flush_writer() {
-    q.flush_writer();
-    td::int64 x = 1;
-    __sync_synchronize();
-    if (wait_flag.load(MODE)) {
-      auto len = write(fd, &x, sizeof(x));
-      CHECK(len == sizeof(x));
-    }
-  }
-  void flush_reader() {
-    q.flush_reader();
-  }
-
-  qvalue_t get_unsafe_flush() {
-    qvalue_t res = q.get_unsafe();
-    q.flush_reader();
-    return res;
-  }
-
-  qvalue_t get_unsafe() {
-    return q.get_unsafe();
-  }
-
-  int wait_reader() {
-    int res = 0;
-    Backoff backoff;
-    while (res == 0 && backoff.next()) {
-      res = q.update_reader();
-    }
-    if (res != 0) {
-      return res;
-    }
-
-    td::int64 x;
-    wait_flag.store(1, MODE);
-    __sync_synchronize();
-    while (!(res = q.update_reader())) {
-      auto len = read(fd, &x, sizeof(x));
-      CHECK(len == sizeof(x));
-      __sync_synchronize();
-    }
-    wait_flag.store(0, MODE);
-    return res;
-  }
-
-  qvalue_t get() {
-    if (!q.reader_empty()) {
-      return get_unsafe_flush();
-    }
-
-    Backoff backoff;
-    while (backoff.next()) {
-      if (q.update_reader()) {
-        return get_unsafe_flush();
-      }
-    }
-
-    td::int64 x;
-    wait_flag.store(1, MODE);
-    __sync_synchronize();
-    while (!q.update_reader()) {
-      auto len = read(fd, &x, sizeof(x));
-      CHECK(len == sizeof(x));
-      __sync_synchronize();
-    }
-    wait_flag.store(0, MODE);
-    return get_unsafe_flush();
-  }
-  void destroy() {
-    q.destroy();
-    close(fd);
-  }
-};
-
-class FdQueue {
-  int fd;
-  std::atomic<int> wait_flag{0};
-  VarQueue q;
-  char pad[64];
-
- public:
-  void init() {
-    q.init();
-    fd = eventfd(0, 0);
-    (void)pad[0];
-  }
-  void put(qvalue_t value) {
-    q.put(value);
-    td::int64 x = 1;
-    __sync_synchronize();
-    if (wait_flag.load(MODE)) {
-      auto len = write(fd, &x, sizeof(x));
-      CHECK(len == sizeof(x));
-    }
-  }
-  qvalue_t get() {
-    // td::int64 x;
-    // auto len = read(fd, &x, sizeof(x));
-    // CHECK(len == sizeof(x));
-    // return q.get();
-
-    Backoff backoff;
-    qvalue_t res = -1;
-    do {
-      res = q.try_get();
-    } while (res == -1 && backoff.next());
-    if (res != -1) {
-      q.acquire();
-      return res;
-    }
-
-    td::int64 x;
-    wait_flag.store(1, MODE);
-    __sync_synchronize();
-    // while (res == -1 && read(fd, &x, sizeof(x)) == sizeof(x)) {
-    //   res = q.try_get();
-    // }
-    do {
-      __sync_synchronize();
-      res = q.try_get();
-    } while (res == -1 && read(fd, &x, sizeof(x)) == sizeof(x));
-    q.acquire();
-    wait_flag.store(0, MODE);
-    return res;
-  }
-  void destroy() {
-    q.destroy();
-    close(fd);
-  }
-};
-#endif
-
-#if TD_PORT_POSIX
-class SemBackoffQueue {
-  sem_t sem;
-  VarQueue q;
-
- public:
-  void init() {
-    q.init();
-    sem_init(&sem, 0, 0);
-  }
-
-  void put(qvalue_t value) {
-    q.put(value);
-    sem_post(&sem);
-  }
-
-  qvalue_t get() {
-    Backoff backoff;
-    int sem_flag = -1;
-    do {
-      sem_flag = sem_trywait(&sem);
-    } while (sem_flag != 0 && backoff.next());
-    if (sem_flag != 0) {
-      sem_wait(&sem);
-    }
-    return q.get();
-  }
-
-  void destroy() {
-    q.destroy();
-    sem_destroy(&sem);
-  }
-};
-
-class SemCheatQueue {
-  sem_t sem;
-  VarQueue q;
-
- public:
-  void init() {
-    q.init();
-    sem_init(&sem, 0, 0);
-  }
-
-  void put(qvalue_t value) {
-    q.put(value);
-    sem_post(&sem);
-  }
-
-  qvalue_t get() {
-    Backoff backoff;
-    qvalue_t res = -1;
-    do {
-      res = q.try_get();
-    } while (res == -1 && backoff.next());
-    sem_wait(&sem);
-    if (res != -1) {
-      q.acquire();
-      return res;
-    }
-    return q.get();
-  }
-
-  void destroy() {
-    q.destroy();
-    sem_destroy(&sem);
-  }
-};
-
-template <class QueueT>
-class QueueBenchmark2 final : public td::Benchmark {
-  QueueT client, server;
-  int connections_n, queries_n;
-
-  int server_active_connections;
-  int client_active_connections;
-  td::vector<td::int64> server_conn;
-  td::vector<td::int64> client_conn;
-
-  td::string name;
-
- public:
-  QueueBenchmark2(int connections_n, td::string name) : connections_n(connections_n), name(std::move(name)) {
-  }
-
-  td::string get_description() const final {
-    return name;
-  }
-
-  void start_up() final {
-    client.init();
-    server.init();
-  }
-
-  void tear_down() final {
-    client.destroy();
-    server.destroy();
-  }
-
-  void server_process(qvalue_t value) {
-    int no = value & 0x00FFFFFF;
-    auto co = static_cast<int>(static_cast<td::uint32>(value) >> 24);
-    CHECK(co >= 0 && co < connections_n);
-    CHECK(no == server_conn[co]++);
-
-    client.writer_put(value);
-    client.writer_flush();
-    if (no + 1 >= queries_n) {
-      server_active_connections--;
-    }
-  }
-
-  void *server_run(void *) {
-    server_conn = td::vector<td::int64>(connections_n);
-    server_active_connections = connections_n;
-
-    while (server_active_connections > 0) {
-      int cnt = server.reader_wait();
-      CHECK(cnt != 0);
-      while (cnt-- > 0) {
-        server_process(server.reader_get_unsafe());
-        server.reader_flush();
-      }
-      // client.writer_flush();
-      server.reader_flush();
-    }
-    return nullptr;
-  }
-
-  void client_process(qvalue_t value) {
-    int no = value & 0x00FFFFFF;
-    auto co = static_cast<int>(static_cast<td::uint32>(value) >> 24);
-    CHECK(co >= 0 && co < connections_n);
-    CHECK(no == client_conn[co]++);
-    if (no + 1 < queries_n) {
-      server.writer_put(value + 1);
-      server.writer_flush();
-    } else {
-      client_active_connections--;
-    }
-  }
-
-  void *client_run(void *) {
-    client_conn = td::vector<td::int64>(connections_n);
-    client_active_connections = connections_n;
-    CHECK(queries_n < (1 << 24));
-
-    for (int i = 0; i < connections_n; i++) {
-      server.writer_put(static_cast<qvalue_t>(i) << 24);
-    }
-    server.writer_flush();
-
-    while (client_active_connections > 0) {
-      int cnt = client.reader_wait();
-      CHECK(cnt != 0);
-      while (cnt-- > 0) {
-        client_process(client.reader_get_unsafe());
-        client.reader_flush();
-      }
-      // server.writer_flush();
-      client.reader_flush();
-    }
-    // system("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
-    return nullptr;
-  }
-
-  static void *client_run_gateway(void *arg) {
-    return static_cast<QueueBenchmark2 *>(arg)->client_run(nullptr);
-  }
-
-  static void *server_run_gateway(void *arg) {
-    return static_cast<QueueBenchmark2 *>(arg)->server_run(nullptr);
-  }
-
-  void run(int n) final {
-    pthread_t client_thread_id;
-    pthread_t server_thread_id;
-
-    queries_n = (n + connections_n - 1) / connections_n;
-
-    pthread_create(&client_thread_id, nullptr, client_run_gateway, this);
-    pthread_create(&server_thread_id, nullptr, server_run_gateway, this);
-
-    pthread_join(client_thread_id, nullptr);
-    pthread_join(server_thread_id, nullptr);
-  }
-};
-
-template <class QueueT>
-class QueueBenchmark final : public td::Benchmark {
-  QueueT client, server;
-  const int connections_n;
-  int queries_n;
-
-  td::string name;
-
- public:
-  QueueBenchmark(int connections_n, td::string name) : connections_n(connections_n), name(std::move(name)) {
-  }
-
-  td::string get_description() const final {
-    return name;
-  }
-
-  void start_up() final {
-    client.init();
-    server.init();
-  }
-
-  void tear_down() final {
-    client.destroy();
-    server.destroy();
-  }
-
-  void *server_run(void *) {
-    td::vector<td::int64> conn(connections_n);
-    int active_connections = connections_n;
-    while (active_connections > 0) {
-      qvalue_t value = server.get();
-      int no = value & 0x00FFFFFF;
-      auto co = static_cast<int>(value >> 24);
-      CHECK(co >= 0 && co < connections_n);
-      CHECK(no == conn[co]++);
-      client.put(value);
-      if (no + 1 >= queries_n) {
-        active_connections--;
-      }
-    }
-    return nullptr;
-  }
-
-  void *client_run(void *) {
-    td::vector<td::int64> conn(connections_n);
-    CHECK(queries_n < (1 << 24));
-    for (int i = 0; i < connections_n; i++) {
-      server.put(static_cast<qvalue_t>(i) << 24);
-    }
-    int active_connections = connections_n;
-    while (active_connections > 0) {
-      qvalue_t value = client.get();
-      int no = value & 0x00FFFFFF;
-      auto co = static_cast<int>(value >> 24);
-      CHECK(co >= 0 && co < connections_n);
-      CHECK(no == conn[co]++);
-      if (no + 1 < queries_n) {
-        server.put(value + 1);
-      } else {
-        active_connections--;
-      }
-    }
-    // system("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
-    return nullptr;
-  }
-
-  void *client_run2(void *) {
-    td::vector<td::int64> conn(connections_n);
-    CHECK(queries_n < (1 << 24));
-    for (int query = 0; query < queries_n; query++) {
-      for (int i = 0; i < connections_n; i++) {
-        server.put((static_cast<td::int64>(i) << 24) + query);
-      }
-      for (int i = 0; i < connections_n; i++) {
-        qvalue_t value = client.get();
-        int no = value & 0x00FFFFFF;
-        auto co = static_cast<int>(value >> 24);
-        CHECK(co >= 0 && co < connections_n);
-        CHECK(no == conn[co]++);
-      }
-    }
-    // system("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
-    return nullptr;
-  }
-
-  static void *client_run_gateway(void *arg) {
-    return static_cast<QueueBenchmark *>(arg)->client_run(nullptr);
-  }
-
-  static void *server_run_gateway(void *arg) {
-    return static_cast<QueueBenchmark *>(arg)->server_run(nullptr);
-  }
-
-  void run(int n) final {
-    pthread_t client_thread_id;
-    pthread_t server_thread_id;
-
-    queries_n = (n + connections_n - 1) / connections_n;
-
-    pthread_create(&client_thread_id, nullptr, client_run_gateway, this);
-    pthread_create(&server_thread_id, nullptr, server_run_gateway, this);
-
-    pthread_join(client_thread_id, nullptr);
-    pthread_join(server_thread_id, nullptr);
-  }
-};
-
-template <class QueueT>
-class RingBenchmark final : public td::Benchmark {
-  static constexpr int QN = 504;
-
-  struct Thread {
-    int int_id;
-    pthread_t id;
-    QueueT queue;
-    Thread *next;
-    char pad[64];
-
-    void *run() {
-      qvalue_t value;
-      do {
-        int cnt = queue.reader_wait();
-        CHECK(cnt == 1);
-        value = queue.reader_get_unsafe();
-        queue.reader_flush();
-
-        next->queue.writer_put(value - 1);
-        next->queue.writer_flush();
-      } while (value >= QN);
-      return nullptr;
-    }
-  };
-
-  Thread q[QN];
-
- public:
-  static void *run_gateway(void *arg) {
-    return static_cast<Thread *>(arg)->run();
-  }
-
-  void start_up() final {
-    for (int i = 0; i < QN; i++) {
-      q[i].int_id = i;
-      q[i].queue.init();
-      q[i].next = &q[(i + 1) % QN];
-    }
-  }
-
-  void tear_down() final {
-    for (int i = 0; i < QN; i++) {
-      q[i].queue.destroy();
-    }
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < QN; i++) {
-      pthread_create(&q[i].id, nullptr, run_gateway, &q[i]);
-    }
-
-    if (n < 1000) {
-      n = 1000;
-    }
-    q[0].queue.writer_put(n);
-    q[0].queue.writer_flush();
-
-    for (int i = 0; i < QN; i++) {
-      pthread_join(q[i].id, nullptr);
-    }
-  }
-};
-#endif
-
-/*
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-static void test_queue() {
-  td::vector<td::thread> threads;
-  static constexpr size_t THREAD_COUNT = 100;
-  td::vector<td::MpscPollableQueue<int>> queues(THREAD_COUNT);
-  for (auto &q : queues) {
-    q.init();
-  }
-  for (size_t i = 0; i < THREAD_COUNT; i++) {
-    threads.emplace_back([&q = queues[i]] {
-      while (true) {
-        auto ready_count = q.reader_wait_nonblock();
-        while (ready_count-- > 0) {
-          q.reader_get_unsafe();
-        }
-        q.reader_get_event_fd().wait(1000);
-      }
-    });
-  }
-
-  for (size_t iter = 0; iter < THREAD_COUNT; iter++) {
-    td::usleep_for(100);
-    for (int i = 0; i < 5; i++) {
-      queues[td::Random::fast(0, THREAD_COUNT - 1)].writer_put(1);
-    }
-  }
-
-  for (size_t i = 0; i < THREAD_COUNT; i++) {
-    threads[i].join();
-  }
-}
-#endif
-*/
-
-int main() {
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-  // test_queue();
-#endif
-
-#if TD_PORT_POSIX
-  // td::bench(RingBenchmark<SemQueue>());
-  // td::bench(RingBenchmark<td::PollQueue<qvalue_t>>());
-
-#define BENCH_Q2(Q, N) td::bench(QueueBenchmark2<Q<qvalue_t>>(N, #Q "(" #N ")"))
-
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-  BENCH_Q2(td::InfBackoffQueue, 1);
-  BENCH_Q2(td::MpscPollableQueue, 1);
-  BENCH_Q2(td::PollQueue, 1);
-
-  BENCH_Q2(td::InfBackoffQueue, 10);
-  BENCH_Q2(td::MpscPollableQueue, 10);
-  BENCH_Q2(td::PollQueue, 10);
-
-  BENCH_Q2(td::InfBackoffQueue, 100);
-  BENCH_Q2(td::MpscPollableQueue, 100);
-  BENCH_Q2(td::PollQueue, 100);
-
-  BENCH_Q2(td::PollQueue, 4);
-  BENCH_Q2(td::PollQueue, 10);
-  BENCH_Q2(td::PollQueue, 100);
-#endif
-
-#define BENCH_Q(Q, N) td::bench(QueueBenchmark<Q>(N, #Q "(" #N ")"))
-
-#if TD_LINUX
-  BENCH_Q(BufferQueue, 1);
-  BENCH_Q(BufferedFdQueue, 1);
-  BENCH_Q(FdQueue, 1);
-#endif
-  BENCH_Q(PipeQueue, 1);
-  BENCH_Q(SemCheatQueue, 1);
-  BENCH_Q(SemQueue, 1);
-  BENCH_Q(VarQueue, 1);
-
-#if TD_LINUX
-  BENCH_Q(BufferQueue, 4);
-  BENCH_Q(BufferQueue, 10);
-  BENCH_Q(BufferQueue, 100);
-#endif
-#endif
-}
diff --git a/third-party/td/td/benchmark/bench_tddb.cpp b/third-party/td/td/benchmark/bench_tddb.cpp
deleted file mode 100644
index 8150840bd0..0000000000
--- a/third-party/td/td/benchmark/bench_tddb.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageDb.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/UserId.h"
-
-#include "td/db/DbKey.h"
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/benchmark.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Random.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-static td::Status init_db(td::SqliteDb &db) {
-  TRY_STATUS(db.exec("PRAGMA encoding=\"UTF-8\""));
-  TRY_STATUS(db.exec("PRAGMA synchronous=NORMAL"));
-  TRY_STATUS(db.exec("PRAGMA journal_mode=WAL"));
-  TRY_STATUS(db.exec("PRAGMA temp_store=MEMORY"));
-  TRY_STATUS(db.exec("PRAGMA secure_delete=1"));
-  return td::Status::OK();
-}
-
-class MessageDbBench final : public td::Benchmark {
- public:
-  td::string get_description() const final {
-    return "MessageDb";
-  }
-  void start_up() final {
-    LOG(ERROR) << "START UP";
-    do_start_up().ensure();
-    scheduler_->start();
-  }
-  void run(int n) final {
-    auto guard = scheduler_->get_main_guard();
-    for (int i = 0; i < n; i += 20) {
-      auto dialog_id = td::DialogId(td::UserId(static_cast<td::int64>(td::Random::fast(1, 100))));
-      auto message_id_raw = td::Random::fast(1, 100000);
-      for (int j = 0; j < 20; j++) {
-        auto message_id = td::MessageId{td::ServerMessageId{message_id_raw + j}};
-        auto unique_message_id = td::ServerMessageId{i + 1};
-        auto sender_dialog_id = td::DialogId(td::UserId(static_cast<td::int64>(td::Random::fast(1, 1000))));
-        auto random_id = i + 1;
-        auto ttl_expires_at = 0;
-        auto data = td::BufferSlice(td::Random::fast(100, 299));
-
-        // use async on same thread.
-        message_db_async_->add_message({dialog_id, message_id}, unique_message_id, sender_dialog_id, random_id,
-                                       ttl_expires_at, 0, 0, "", td::NotificationId(), td::MessageId(), std::move(data),
-                                       td::Promise<>());
-      }
-    }
-  }
-  void tear_down() final {
-    scheduler_->run_main(0.1);
-    {
-      auto guard = scheduler_->get_main_guard();
-      sql_connection_.reset();
-      message_db_sync_safe_.reset();
-      message_db_async_.reset();
-    }
-
-    scheduler_->finish();
-    scheduler_.reset();
-    LOG(ERROR) << "TEAR DOWN";
-  }
-
- private:
-  td::unique_ptr<td::ConcurrentScheduler> scheduler_;
-  std::shared_ptr<td::SqliteConnectionSafe> sql_connection_;
-  std::shared_ptr<td::MessageDbSyncSafeInterface> message_db_sync_safe_;
-  std::shared_ptr<td::MessageDbAsyncInterface> message_db_async_;
-
-  td::Status do_start_up() {
-    scheduler_ = td::make_unique<td::ConcurrentScheduler>(1, 0);
-
-    auto guard = scheduler_->get_main_guard();
-
-    td::string sql_db_name = "testdb.sqlite";
-    sql_connection_ = std::make_shared<td::SqliteConnectionSafe>(sql_db_name, td::DbKey::empty());
-    auto &db = sql_connection_->get();
-    TRY_STATUS(init_db(db));
-
-    db.exec("BEGIN TRANSACTION").ensure();
-    // version == 0 ==> db will be destroyed
-    TRY_STATUS(init_message_db(db, 0));
-    db.exec("COMMIT TRANSACTION").ensure();
-
-    message_db_sync_safe_ = td::create_message_db_sync(sql_connection_);
-    message_db_async_ = td::create_message_db_async(message_db_sync_safe_, 0);
-    return td::Status::OK();
-  }
-};
-
-int main() {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(WARNING));
-  td::bench(MessageDbBench());
-}
diff --git a/third-party/td/td/benchmark/check_proxy.cpp b/third-party/td/td/benchmark/check_proxy.cpp
deleted file mode 100644
index 55aa9efa1d..0000000000
--- a/third-party/td/td/benchmark/check_proxy.cpp
+++ /dev/null
@@ -1,193 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Client.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/TsCerr.h"
-
-#include <algorithm>
-#include <cstdlib>
-#include <iostream>
-#include <utility>
-
-static void usage() {
-  td::TsCerr() << "Tests specified MTProto-proxies, outputs working proxies to stdout; exits with code 0 if a working "
-                  "proxy was found.\n";
-  td::TsCerr() << "Usage: check_proxy [options] server:port:secret [server2:port2:secret2 ...]\n";
-  td::TsCerr() << "Options:\n";
-  td::TsCerr() << "  -v<N>\tSet verbosity level to N\n";
-  td::TsCerr() << "  -h/--help\tDisplay this information\n";
-  td::TsCerr() << "  -d/--dc-id\tIdentifier of a datacenter to which try to connect (default is 2)\n";
-  td::TsCerr() << "  -l/--proxy-list\tName of a file with proxies to check; one proxy per line\n";
-  td::TsCerr() << "  -t/--timeout\tMaximum overall timeout for the request (default is 10 seconds)\n";
-  std::exit(2);
-}
-
-int main(int argc, char **argv) {
-  int new_verbosity_level = VERBOSITY_NAME(FATAL);
-
-  td::vector<std::pair<td::string, td::td_api::object_ptr<td::td_api::testProxy>>> requests;
-
-  auto add_proxy = [&requests](td::string arg) {
-    if (arg.empty()) {
-      return;
-    }
-
-    std::size_t offset = 0;
-    if (arg[0] == '[') {
-      auto end_ipv6_pos = arg.find(']');
-      if (end_ipv6_pos == td::string::npos) {
-        td::TsCerr() << "Error: failed to find end of IPv6 address in \"" << arg << "\"\n";
-        usage();
-      }
-      offset = end_ipv6_pos;
-    }
-    if (std::count(arg.begin() + offset, arg.end(), ':') == 3) {
-      auto secret_domain_pos = arg.find(':', arg.find(':', offset) + 1) + 1;
-      auto domain_pos = arg.find(':', secret_domain_pos);
-      auto secret = arg.substr(secret_domain_pos, domain_pos - secret_domain_pos);
-      auto domain = arg.substr(domain_pos + 1);
-      auto r_decoded_secret = td::hex_decode(secret);
-      if (r_decoded_secret.is_error()) {
-        r_decoded_secret = td::base64url_decode(secret);
-        if (r_decoded_secret.is_error()) {
-          td::TsCerr() << "Error: failed to find proxy port and secret in \"" << arg << "\"\n";
-          usage();
-        }
-      }
-      arg = arg.substr(0, secret_domain_pos) + td::base64url_encode(r_decoded_secret.ok() + domain);
-    }
-
-    auto secret_pos = arg.rfind(':');
-    if (secret_pos == td::string::npos) {
-      td::TsCerr() << "Error: failed to find proxy port and secret in \"" << arg << "\"\n";
-      usage();
-    }
-    auto secret = arg.substr(secret_pos + 1);
-    auto port_pos = arg.substr(0, secret_pos).rfind(':');
-    if (port_pos == td::string::npos) {
-      td::TsCerr() << "Error: failed to find proxy secret in \"" << arg << "\"\n";
-      usage();
-    }
-    auto r_port = td::to_integer_safe<td::int32>(arg.substr(port_pos + 1, secret_pos - port_pos - 1));
-    if (r_port.is_error()) {
-      td::TsCerr() << "Error: failed to parse proxy port in \"" << arg << "\"\n";
-      usage();
-    }
-    auto port = r_port.move_as_ok();
-    auto server = arg.substr(0, port_pos);
-    if (server[0] == '[' && server.back() == ']') {
-      server = server.substr(1, server.size() - 2);
-    }
-
-    if (server.empty() || port <= 0 || port > 65536 || secret.empty()) {
-      td::TsCerr() << "Error: proxy address to check is in wrong format: \"" << arg << "\"\n";
-      usage();
-    }
-
-    requests.emplace_back(arg,
-                          td::td_api::make_object<td::td_api::testProxy>(
-                              server, port, td::td_api::make_object<td::td_api::proxyTypeMtproto>(secret), -1, -1));
-  };
-
-  td::int32 dc_id = 2;
-  double timeout = 10.0;
-
-  for (int i = 1; i < argc; i++) {
-    td::string arg(argv[i]);
-
-    auto get_next_arg = [&i, &arg, argc, argv](bool is_optional = false) {
-      CHECK(arg.size() >= 2);
-      if (arg.size() == 2 || arg[1] == '-') {
-        if (i + 1 < argc && argv[i + 1][0] != '-') {
-          return td::string(argv[++i]);
-        }
-      } else {
-        if (arg.size() > 2) {
-          return arg.substr(2);
-        }
-      }
-      if (!is_optional) {
-        td::TsCerr() << "Error: value is required after " << arg << "\n";
-        usage();
-      }
-      return td::string();
-    };
-
-    if (td::begins_with(arg, "-v")) {
-      arg = get_next_arg(true);
-      int new_verbosity = 1;
-      while (arg[0] == 'v') {
-        new_verbosity++;
-        arg = arg.substr(1);
-      }
-      if (!arg.empty()) {
-        new_verbosity += td::to_integer<int>(arg) - (new_verbosity == 1);
-      }
-      new_verbosity_level = VERBOSITY_NAME(FATAL) + new_verbosity;
-    } else if (td::begins_with(arg, "-t") || arg == "--timeout") {
-      timeout = td::to_double(get_next_arg());
-    } else if (td::begins_with(arg, "-d") || arg == "--dc-id") {
-      dc_id = td::to_integer<td::int32>(get_next_arg());
-    } else if (td::begins_with(arg, "-l") || arg == "--proxy-list") {
-      auto r_proxies = td::read_file_str(get_next_arg());
-      if (r_proxies.is_error()) {
-        td::TsCerr() << "Error: wrong file name specified\n";
-        usage();
-      }
-      for (auto &proxy : td::full_split(r_proxies.ok(), '\n')) {
-        add_proxy(td::trim(proxy));
-      }
-    } else if (arg[0] == '-') {
-      usage();
-    } else {
-      add_proxy(arg);
-    }
-  }
-
-  if (requests.empty()) {
-    td::TsCerr() << "Error: proxy address to check is not specified\n";
-    usage();
-  }
-
-  SET_VERBOSITY_LEVEL(new_verbosity_level);
-
-  td::ClientManager client_manager;
-  auto client_id = client_manager.create_client_id();
-  for (size_t i = 0; i < requests.size(); i++) {
-    auto &request = requests[i].second;
-    request->dc_id_ = dc_id;
-    request->timeout_ = timeout;
-    client_manager.send(client_id, i + 1, std::move(request));
-  }
-  size_t successful_requests = 0;
-  size_t failed_requests = 0;
-
-  while (successful_requests + failed_requests != requests.size()) {
-    auto response = client_manager.receive(100.0);
-    CHECK(client_id == response.client_id);
-    if (1 <= response.request_id && response.request_id <= requests.size()) {
-      auto &proxy = requests[static_cast<size_t>(response.request_id - 1)].first;
-      if (response.object->get_id() == td::td_api::error::ID) {
-        LOG(ERROR) << proxy << ": " << to_string(response.object);
-        failed_requests++;
-      } else {
-        std::cout << proxy << std::endl;
-        successful_requests++;
-      }
-    }
-  }
-
-  if (successful_requests == 0) {
-    return 1;
-  }
-}
diff --git a/third-party/td/td/benchmark/check_tls.cpp b/third-party/td/td/benchmark/check_tls.cpp
deleted file mode 100644
index bc40478847..0000000000
--- a/third-party/td/td/benchmark/check_tls.cpp
+++ /dev/null
@@ -1,336 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/BigNum.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/Iocp.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <map>
-
-static td::BigNumContext context;
-
-static bool is_quadratic_residue(const td::BigNum &a) {
-  // 2^255 - 19
-  td::BigNum mod =
-      td::BigNum::from_hex("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed").move_as_ok();
-  // (mod - 1) / 2 = 2^254 - 10
-  td::BigNum pow =
-      td::BigNum::from_hex("3ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff6").move_as_ok();
-
-  td::BigNum r;
-  td::BigNum::mod_exp(r, a, pow, mod, context);
-  td::BigNum one = td::BigNum::from_decimal("1").move_as_ok();
-  td::BigNum::mod_add(r, r, one, mod, context);
-
-  td::string result = r.to_decimal();
-  CHECK(result == "0" || result == "1" || result == "2");
-  return result == "2";
-}
-
-struct TlsInfo {
-  td::vector<size_t> extension_list;
-  td::vector<size_t> encrypted_application_data_length;
-};
-
-td::Result<TlsInfo> test_tls(const td::string &url) {
-  td::IPAddress address;
-  TRY_STATUS(address.init_host_port(url, 443));
-  TRY_RESULT(socket, td::SocketFd::open(address));
-
-  td::string request;
-
-  auto add_string = [&](td::Slice data) {
-    request.append(data.data(), data.size());
-  };
-  auto add_random = [&](size_t length) {
-    while (length-- > 0) {
-      request += static_cast<char>(td::Random::secure_int32());
-    }
-  };
-  auto add_length = [&](size_t length) {
-    request += static_cast<char>(length / 256);
-    request += static_cast<char>(length % 256);
-  };
-  auto add_key = [&] {
-    td::string key(32, '\0');
-    td::BigNum mod =
-        td::BigNum::from_hex("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed").move_as_ok();
-    while (true) {
-      td::Random::secure_bytes(key);
-      key[31] = static_cast<char>(key[31] & 127);
-      td::BigNum x = td::BigNum::from_le_binary(key);
-      if (!is_quadratic_residue(x)) {
-        continue;
-      }
-
-      td::BigNum y = x.clone();
-      td::BigNum coef = td::BigNum::from_decimal("486662").move_as_ok();
-      td::BigNum::mod_add(y, y, coef, mod, context);
-      td::BigNum::mod_mul(y, y, x, mod, context);
-      td::BigNum one = td::BigNum::from_decimal("1").move_as_ok();
-      td::BigNum::mod_add(y, y, one, mod, context);
-      td::BigNum::mod_mul(y, y, x, mod, context);
-      // y = x^3 + 486662 * x^2 + x
-      if (is_quadratic_residue(y)) {
-        break;
-      }
-    }
-    request += key;
-  };
-
-  const size_t MAX_GREASE = 7;
-  char greases[MAX_GREASE];
-  td::Random::secure_bytes(td::MutableSlice{greases, MAX_GREASE});
-  for (auto &grease : greases) {
-    grease = static_cast<char>((grease & 0xF0) + 0x0A);
-  }
-  for (size_t i = 1; i < MAX_GREASE; i += 2) {
-    if (greases[i] == greases[i - 1]) {
-      greases[i] = static_cast<char>(0x10 ^ greases[i]);
-    }
-  }
-  auto add_grease = [&](size_t num) {
-    auto c = greases[num];
-    request += c;
-    request += c;
-  };
-
-  add_string("\x16\x03\x01\x02\x00\x01\x00\x01\xfc\x03\x03");
-  add_random(32);
-  add_string("\x20");
-  add_random(32);
-  add_string("\x00\x20");
-  add_grease(0);
-  add_string(
-      "\x13\x01\x13\x02\x13\x03\xc0\x2b\xc0\x2f\xc0\x2c\xc0\x30\xcc\xa9\xcc\xa8\xc0\x13\xc0\x14\x00\x9c\x00\x9d\x00"
-      "\x2f\x00\x35\x01\x00\x01\x93");
-  add_grease(2);
-  add_string("\x00\x00\x00\x00");
-  add_length(url.size() + 5);
-  add_length(url.size() + 3);
-  add_string("\x00");
-  add_length(url.size());
-  add_string(url);
-  add_string("\x00\x17\x00\x00\xff\x01\x00\x01\x00\x00\x0a\x00\x0a\x00\x08");
-  add_grease(4);
-  add_string(
-      "\x00\x1d\x00\x17\x00\x18\x00\x0b\x00\x02\x01\x00\x00\x23\x00\x00\x00\x10\x00\x0e\x00\x0c\x02\x68\x32\x08\x68"
-      "\x74\x74\x70\x2f\x31\x2e\x31\x00\x05\x00\x05\x01\x00\x00\x00\x00\x00\x0d\x00\x12\x00\x10\x04\x03\x08\x04\x04"
-      "\x01\x05\x03\x08\x05\x05\x01\x08\x06\x06\x01\x00\x12\x00\x00\x00\x33\x00\x2b\x00\x29");
-  add_grease(4);
-  add_string("\x00\x01\x00\x00\x1d\x00\x20");
-  add_key();
-  add_string("\x00\x2d\x00\x02\x01\x01\x00\x2b\x00\x0b\x0a");
-  add_grease(6);
-  add_string("\x03\x04\x03\x03\x03\x02\x03\x01\x00\x1b\x00\x03\x02\x00\x02");
-  add_grease(3);
-  add_string("\x00\x01\x00\x00\x15");
-  auto padding = 515 - static_cast<int>(request.size());
-  CHECK(padding >= 0);
-  add_length(padding);
-  request.resize(517);
-
-  // LOG(ERROR) << td::format::as_hex_dump<0>(td::Slice(request));
-
-  TRY_STATUS(socket.write(request));
-
-  TlsInfo info;
-  auto end_time = td::Time::now() + 3;
-  td::string result;
-  size_t pos = 0;
-  size_t server_hello_length = 0;
-  size_t encrypted_application_data_length_sum = 0;
-  while (td::Time::now() < end_time) {
-    static char buf[20000];
-    TRY_RESULT(res, socket.read(td::MutableSlice{buf, sizeof(buf)}));
-    if (res > 0) {
-      auto read_length = [&]() -> size_t {
-        CHECK(result.size() >= 2 + pos);
-        pos += 2;
-        return static_cast<unsigned char>(result[pos - 2]) * 256 + static_cast<unsigned char>(result[pos - 1]);
-      };
-
-      result += td::Slice(buf, res).str();
-      while (true) {
-#define CHECK_LENGTH(length)            \
-  if (pos + (length) > result.size()) { \
-    break;                              \
-  }
-#define EXPECT_STR(pos, str, error)                       \
-  if (!begins_with(td::Slice(result).substr(pos), str)) { \
-    return td::Status::Error(error);                      \
-  }
-
-        if (pos == 0) {
-          CHECK_LENGTH(3);
-          EXPECT_STR(0, "\x16\x03\x03", "Non-TLS response or TLS <= 1.1");
-          pos += 3;
-        }
-        if (pos == 3) {
-          CHECK_LENGTH(2);
-          server_hello_length = read_length();
-          if (server_hello_length <= 39) {
-            return td::Status::Error("Receive too short server hello");
-          }
-        }
-        if (server_hello_length > 0) {
-          if (pos == 5) {
-            CHECK_LENGTH(server_hello_length);
-
-            EXPECT_STR(5, "\x02\x00", "Non-TLS response 2");
-            EXPECT_STR(9, "\x03\x03", "Non-TLS response 3");
-
-            auto random_id = td::Slice(result.c_str() + 11, 32);
-            if (random_id ==
-                "\xcf\x21\xad\x74\xe5\x9a\x61\x11\xbe\x1d\x8c\x02\x1e\x65\xb8\x91\xc2\xa2\x11\x16\x7a\xbb\x8c\x5e\x07"
-                "\x9e\x09\xe2\xc8\xa8\x33\x9c") {
-              return td::Status::Error("TLS 1.3 servers returning HelloRetryRequest are not supported");
-            }
-            if (result[43] == '\x00') {
-              return td::Status::Error("TLS <= 1.2: empty session_id");
-            }
-            EXPECT_STR(43, "\x20", "Non-TLS response 4");
-            if (server_hello_length <= 75) {
-              return td::Status::Error("Receive too short server hello 2");
-            }
-            EXPECT_STR(44, request.substr(44, 32), "TLS <= 1.2: expected mirrored session_id");
-            EXPECT_STR(76, "\x13\x01\x00", "TLS <= 1.2: expected 0x1301 as a chosen cipher");
-            pos += 74;
-            size_t extensions_length = read_length();
-            if (extensions_length + 76 != server_hello_length) {
-              return td::Status::Error("Receive wrong extensions length");
-            }
-            while (pos < 5 + server_hello_length - 4) {
-              info.extension_list.push_back(read_length());
-              size_t extension_length = read_length();
-              if (pos + extension_length > 5 + server_hello_length) {
-                return td::Status::Error("Receive wrong extension length");
-              }
-              pos += extension_length;
-            }
-            if (pos != 5 + server_hello_length) {
-              return td::Status::Error("Receive wrong extensions list");
-            }
-          }
-          if (pos == 5 + server_hello_length) {
-            CHECK_LENGTH(6);
-            EXPECT_STR(pos, "\x14\x03\x03\x00\x01\x01", "Expected dummy ChangeCipherSpec");
-            pos += 6;
-          }
-          if (pos == 11 + server_hello_length + encrypted_application_data_length_sum) {
-            if (pos == result.size()) {
-              return info;
-            }
-
-            CHECK_LENGTH(3);
-            EXPECT_STR(pos, "\x17\x03\x03", "Expected encrypted application data");
-            pos += 3;
-          }
-          if (pos == 14 + server_hello_length + encrypted_application_data_length_sum) {
-            CHECK_LENGTH(2);
-            size_t encrypted_application_data_length = read_length();
-            info.encrypted_application_data_length.push_back(encrypted_application_data_length);
-            if (encrypted_application_data_length == 0) {
-              return td::Status::Error("Receive empty encrypted application data");
-            }
-          }
-          if (pos == 16 + server_hello_length + encrypted_application_data_length_sum) {
-            CHECK_LENGTH(info.encrypted_application_data_length.back());
-            pos += info.encrypted_application_data_length.back();
-            encrypted_application_data_length_sum += info.encrypted_application_data_length.back() + 5;
-          }
-        }
-      }
-    } else {
-      td::usleep_for(10000);
-    }
-  }
-
-  // LOG(ERROR) << url << ":" << td::format::as_hex_dump<0>(td::Slice(result));
-  return td::Status::Error("Failed to get response in 3 seconds");
-}
-
-int main(int argc, char *argv[]) {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(WARNING));
-
-#if TD_PORT_WINDOWS
-  auto iocp = td::make_unique<td::detail::Iocp>();
-  iocp->init();
-  auto iocp_thread = td::thread([&iocp] { iocp->loop(); });
-  td::detail::Iocp::Guard iocp_guard(iocp.get());
-#endif
-
-  td::vector<td::string> urls;
-  for (int i = 1; i < argc; i++) {
-    urls.emplace_back(argv[i]);
-  }
-  for (auto &url : urls) {
-    const int MAX_TRIES = 100;
-    td::vector<std::map<size_t, int>> length_count;
-    td::vector<size_t> extension_list;
-    for (int i = 0; i < MAX_TRIES; i++) {
-      auto r_tls_info = test_tls(url);
-      if (r_tls_info.is_error()) {
-        LOG(ERROR) << url << ": " << r_tls_info.error();
-        break;
-      } else {
-        auto tls_info = r_tls_info.move_as_ok();
-        if (length_count.size() < tls_info.encrypted_application_data_length.size()) {
-          length_count.resize(tls_info.encrypted_application_data_length.size());
-        }
-        for (size_t t = 0; t < tls_info.encrypted_application_data_length.size(); t++) {
-          length_count[t][tls_info.encrypted_application_data_length[t]]++;
-        }
-        if (i == 0) {
-          extension_list = tls_info.extension_list;
-        } else {
-          if (extension_list != tls_info.extension_list) {
-            LOG(ERROR) << url << ": TLS 1.3.0 extension list has changed from " << extension_list << " to "
-                       << tls_info.extension_list;
-            break;
-          }
-        }
-      }
-
-      if (i == MAX_TRIES - 1) {
-        if (extension_list != td::vector<size_t>{51, 43} && extension_list != td::vector<size_t>{43, 51}) {
-          LOG(ERROR) << url << ": TLS 1.3.0 unsupported extension list " << extension_list;
-        } else {
-          td::string length_distribution = "|";
-          for (size_t t = 0; t < length_count.size(); t++) {
-            for (auto it : length_count[t]) {
-              length_distribution += PSTRING()
-                                     << it.first << " : " << static_cast<int>(it.second * 100.0 / MAX_TRIES) << "%|";
-            }
-            if (t + 1 != length_count.size()) {
-              length_distribution += " + |";
-            }
-          }
-          LOG(ERROR) << url << ": TLS 1.3.0 with extensions " << extension_list << " and "
-                     << (length_count.size() != 1 ? "unsupported " : "")
-                     << "encrypted application data length distribution " << length_distribution;
-        }
-      }
-    }
-  }
-
-#if TD_PORT_WINDOWS
-  iocp->interrupt_loop();
-  iocp_thread.join();
-#endif
-}
diff --git a/third-party/td/td/benchmark/hashmap_build.cpp b/third-party/td/td/benchmark/hashmap_build.cpp
deleted file mode 100644
index 70f676a1a0..0000000000
--- a/third-party/td/td/benchmark/hashmap_build.cpp
+++ /dev/null
@@ -1,545 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/FlatHashMap.h"
-
-#ifdef SCOPE_EXIT
-#undef SCOPE_EXIT
-#endif
-
-#include <absl/container/flat_hash_map.h>
-#include <array>
-#include <folly/container/F14Map.h>
-#include <map>
-#include <unordered_map>
-
-#define test_map td::FlatHashMap
-//#define test_map folly::F14FastMap
-//#define test_map absl::flat_hash_map
-//#define test_map std::map
-//#define test_map std::unordered_map
-
-//#define CREATE_MAP(num) CREATE_MAP_IMPL(num)
-#define CREATE_MAP(num)
-
-#define CREATE_MAP_IMPL(num)                      \
-  int f_##num() {                                 \
-    test_map<td::int32, std::array<char, num>> m; \
-    m.emplace(1, std::array<char, num>{});        \
-    int sum = 0;                                  \
-    for (auto &it : m) {                          \
-      sum += it.first;                            \
-    }                                             \
-    auto it = m.find(1);                          \
-    sum += it->first;                             \
-    m.erase(it);                                  \
-    return sum;                                   \
-  }                                               \
-  int x_##num = f_##num()
-
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
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-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-CREATE_MAP(__LINE__);
-
-int main() {
-}
diff --git a/third-party/td/td/benchmark/hashset_memory.cpp b/third-party/td/td/benchmark/hashset_memory.cpp
deleted file mode 100644
index 4e60a49314..0000000000
--- a/third-party/td/td/benchmark/hashset_memory.cpp
+++ /dev/null
@@ -1,193 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#if USE_MEMPROF
-#include "memprof/memprof_stat.h"
-#endif
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashMapChunks.h"
-#include "td/utils/FlatHashTable.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/MapNode.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-#ifdef SCOPE_EXIT
-#undef SCOPE_EXIT
-#endif
-
-#include <absl/container/flat_hash_map.h>
-#include <array>
-#include <folly/container/F14Map.h>
-#include <functional>
-#include <map>
-#include <unordered_map>
-
-static int mem_stat_i = -1;
-static int mem_stat_cur = 0;
-
-static bool use_memprof() {
-#if USE_MEMPROF
-  return mem_stat_i < 0 && is_memprof_on();
-#else
-  return mem_stat_i < 0;
-#endif
-}
-
-static td::uint64 get_memory() {
-#if USE_MEMPROF
-  if (use_memprof()) {
-    return get_used_memory_size();
-  }
-#endif
-  CHECK(!use_memprof());
-  return td::mem_stat().ok().resident_size_;
-}
-
-template <class T>
-class Generator {
- public:
-  T next() {
-    UNREACHABLE();
-  }
-  static size_t dyn_size() {
-    UNREACHABLE();
-  }
-};
-
-template <class T>
-class IntGenerator {
- public:
-  T next() {
-    return ++value;
-  }
-  static size_t dyn_size() {
-    return 0;
-  }
-
- private:
-  T value{};
-};
-
-template <>
-class Generator<td::int32> final : public IntGenerator<td::int32> {};
-template <>
-class Generator<td::int64> final : public IntGenerator<td::int64> {};
-
-template <class T>
-class Generator<td::unique_ptr<T>> {
- public:
-  td::unique_ptr<T> next() {
-    return td::make_unique<T>();
-  }
-  static std::size_t dyn_size() {
-    return sizeof(T);
-  }
-};
-
-template <class T, class KeyT, class ValueT>
-static void measure(td::StringBuilder &sb, td::Slice name, td::Slice key_name, td::Slice value_name) {
-  mem_stat_cur++;
-  if (mem_stat_i >= 0 && mem_stat_cur != mem_stat_i) {
-    return;
-  }
-  sb << name << "<" << key_name << "," << value_name << "> " << (use_memprof() ? "memprof" : "os") << "\n";
-  std::size_t ideal_size = sizeof(KeyT) + sizeof(ValueT) + Generator<ValueT>::dyn_size();
-
-  sb << "\tempty:" << sizeof(T);
-  struct Stat {
-    int pi;
-    double min_ratio;
-    double max_ratio;
-  };
-  td::vector<Stat> stat;
-  stat.reserve(1024);
-  for (std::size_t size : {1000000u}) {
-    Generator<KeyT> key_generator;
-    Generator<ValueT> value_generator;
-    auto start_mem = get_memory();
-    T ht;
-    auto ratio = [&] {
-      auto end_mem = get_memory();
-      auto used_mem = end_mem - start_mem;
-      return static_cast<double>(used_mem) / (static_cast<double>(ideal_size) * static_cast<double>(ht.size()));
-    };
-    double min_ratio;
-    double max_ratio;
-    auto reset = [&] {
-      min_ratio = 1e100;
-      max_ratio = 0;
-    };
-    auto update = [&] {
-      auto x = ratio();
-      min_ratio = td::min(min_ratio, x);
-      max_ratio = td::max(max_ratio, x);
-    };
-    reset();
-
-    int p = 10;
-    int pi = 1;
-    for (std::size_t i = 0; i < size; i++) {
-      ht.emplace(key_generator.next(), value_generator.next());
-      update();
-      if ((i + 1) % p == 0) {
-        stat.push_back(Stat{pi, min_ratio, max_ratio});
-        reset();
-        pi++;
-        p *= 10;
-      }
-    }
-  }
-  for (auto &s : stat) {
-    sb << " 10^" << s.pi << ":" << s.min_ratio << "->" << s.max_ratio;
-  }
-  sb << '\n';
-}
-
-template <std::size_t size>
-using Bytes = std::array<char, size>;
-
-template <template <typename... Args> class T>
-void print_memory_stats(td::Slice name) {
-  td::string big_buff(1 << 16, '\0');
-  td::StringBuilder sb(big_buff, false);
-#define MEASURE(KeyT, ValueT) measure<T<KeyT, ValueT>, KeyT, ValueT>(sb, name, #KeyT, #ValueT);
-  MEASURE(td::int32, td::int32);
-  MEASURE(td::int64, td::unique_ptr<Bytes<360>>);
-  if (!sb.as_cslice().empty()) {
-    LOG(PLAIN) << '\n' << sb.as_cslice() << '\n';
-  }
-}
-
-template <class KeyT, class ValueT, class HashT = td::Hash<KeyT>, class EqT = std::equal_to<KeyT>>
-using FlatHashMapImpl = td::FlatHashTable<td::MapNode<KeyT, ValueT>, HashT, EqT>;
-
-#define FOR_EACH_TABLE(F) \
-  F(FlatHashMapImpl)      \
-  F(folly::F14FastMap)    \
-  F(absl::flat_hash_map)  \
-  F(std::unordered_map)   \
-  F(std::map)
-#define BENCHMARK_MEMORY(T) print_memory_stats<T>(#T);
-
-int main(int argc, const char *argv[]) {
-  // Usage:
-  //  % benchmark/memory-hashset-os 0
-  //  Number of benchmarks = 10
-  //  % for i in {1..10}; do ./benchmark/memory-hashset-os $i; done
-  if (argc > 1) {
-    mem_stat_i = td::to_integer<td::int32>(td::Slice(argv[1]));
-  }
-  FOR_EACH_TABLE(BENCHMARK_MEMORY);
-  if (mem_stat_i <= 0) {
-    LOG(PLAIN) << "Number of benchmarks = " << mem_stat_cur << "\n";
-  }
-}
diff --git a/third-party/td/td/benchmark/rmdir.cpp b/third-party/td/td/benchmark/rmdir.cpp
deleted file mode 100644
index 3039ceadc6..0000000000
--- a/third-party/td/td/benchmark/rmdir.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/path.h"
-#include "td/utils/Slice.h"
-
-int main(int argc, char *argv[]) {
-  if (argc < 1) {
-    return 1;
-  }
-  td::CSlice dir(argv[1]);
-  int cnt = 0;
-  auto status = td::walk_path(dir, [&](td::CSlice path, auto type) {
-    if (type != td::WalkPath::Type::EnterDir) {
-      cnt++;
-    }
-    auto type_name = [&] {
-      switch (type) {
-        case td::WalkPath::Type::EnterDir:
-          return td::CSlice("Open");
-        case td::WalkPath::Type::ExitDir:
-          return td::CSlice("Exit");
-        case td::WalkPath::Type::RegularFile:
-          return td::CSlice("File");
-        case td::WalkPath::Type::Symlink:
-          return td::CSlice("Link");
-        default:
-          UNREACHABLE();
-          return td::CSlice();
-      }
-    }();
-    LOG(INFO) << type_name << ' ' << path;
-    //if (is_dir) {
-    // td::rmdir(path);
-    //} else {
-    // td::unlink(path);
-    //}
-  });
-  LOG(INFO) << status << ": " << cnt;
-}
diff --git a/third-party/td/td/benchmark/wget.cpp b/third-party/td/td/benchmark/wget.cpp
deleted file mode 100644
index 62ce6bb1f8..0000000000
--- a/third-party/td/td/benchmark/wget.cpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpQuery.h"
-#include "td/net/Wget.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-int main(int argc, char *argv[]) {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(DEBUG));
-  td::VERBOSITY_NAME(fd) = VERBOSITY_NAME(INFO);
-
-  td::string url = (argc > 1 ? argv[1] : "https://telegram.org");
-  auto timeout = 10;
-  auto ttl = 3;
-  auto prefer_ipv6 = (argc > 2 && td::string(argv[2]) == "-6");
-  auto scheduler = td::make_unique<td::ConcurrentScheduler>(0, 0);
-  scheduler
-      ->create_actor_unsafe<td::Wget>(0, "Client",
-                                      td::PromiseCreator::lambda([](td::Result<td::unique_ptr<td::HttpQuery>> res) {
-                                        if (res.is_error()) {
-                                          LOG(FATAL) << res.error();
-                                        }
-                                        LOG(ERROR) << *res.ok();
-                                        td::Scheduler::instance()->finish();
-                                      }),
-                                      url, td::Auto(), timeout, ttl, prefer_ipv6)
-      .release();
-  scheduler->start();
-  while (scheduler->run_main(10)) {
-    // empty
-  }
-  scheduler->finish();
-}
diff --git a/third-party/td/td/build.html b/third-party/td/td/build.html
deleted file mode 100644
index eb00c43b65..0000000000
--- a/third-party/td/td/build.html
+++ /dev/null
@@ -1,1139 +0,0 @@
-<!DOCTYPE html>
-<html>
-
-<head>
-  <title>TDLib build instructions</title>
-  <meta name="viewport" content="width=device-width, initial-scale=1" />
-  <style>
-    :root {
-      --background: #fafafa;
-      --color: black;
-      --color-primary: #0088ff;
-      --color-primary-light: #42a7ff;
-      --color-code-block: #ebf9ff;
-      --color-select-border: rgb(211, 211, 211);
-      --color-checkbox-background: rgb(211, 211, 211);
-      --color-checkbox-tick: #ffffff;
-      --color-copy-success-background: #c1ffc6;
-      --color-copy-success-border: rgb(0, 255, 0);
-      --color-copy-fail-background: #ffcbcb;
-      --color-copy-fail-border: rgb(255, 0, 0);
-
-      color: var(--color);
-      background: var(--background);
-    }
-    @media (prefers-color-scheme: dark) {
-      :root {
-        --background: #0e0e0e;
-        --color: rgb(190, 190, 190);
-        --color-primary: #0088ff;
-        --color-code-block: #101315;
-        --color-select-border: rgb(54, 54, 54);
-        --color-checkbox-background: rgb(51, 51, 51);
-        --color-checkbox-tick: #ffffff;
-        --color-copy-success-background: #001f00;
-        --color-copy-success-border: rgb(0, 255, 0);
-        --color-copy-fail-background: #1f0000;
-        --color-copy-fail-border: rgb(255, 0, 0);
-      }
-    }
-    body {
-      font-family: 'Segoe UI', Arial, Helvetica, sans-serif;
-    }
-    :focus:not(:focus-visible) {
-      outline: none;
-    }
-    input:focus-visible, select:focus-visible, button:focus-visible {
-      box-shadow: 0 0 0 3px var(--color-primary);
-      outline: none;
-    }
-
-    .hide {
-      display: none;
-    }
-    div.main {
-      max-width: 1250px;
-      padding: 25px;
-      margin: auto;
-      font-size: 16px;
-    }
-
-    p {
-      margin: 0;
-    }
-    .main > div {
-      margin-bottom: 20px;
-    }
-
-    #buildCommands {
-      font-family: Consolas, monospace;
-      margin-left: 40px;
-      background: var(--color-code-block);
-      padding: 5px;
-      margin-bottom: 0;
-      display: block;
-      overflow-x: auto;
-    }
-    #buildCommands ul {
-      list-style: '$ ';
-    }
-
-    a {
-      color: var(--color-primary);
-      text-decoration-color: transparent;
-      transition: text-decoration 200ms, color 200ms;
-    }
-    a:hover {
-      text-decoration: underline;
-    }
-    a:focus-visible {
-      text-decoration: underline 2px;
-      color: var(--color-primary-light);
-      outline: none;
-    }
-    select, button {
-      border: 1px solid var(--color-select-border);
-      background-color: var(--background);
-      color: var(--color);
-      padding: 5px;
-      margin-top: 5px;
-      box-shadow: 0 0 0 0 var(--color-primary);
-      transition: border 200ms, padding 200ms, box-shadow 200ms;
-      border-radius: 999em;
-      font-size: 16px;
-      cursor: pointer;
-    }
-
-    label * {
-      vertical-align: middle;
-    }
-
-    input[type=checkbox] {
-      margin-right: 5px;
-      appearance: none;
-      -webkit-appearance: none;
-      -moz-appearance: none;
-      background-color: var(--color-checkbox-background);
-      height: 20px;
-      width: 20px;
-      border-radius: 3px;
-      position: relative;
-      top: -1px; // Fix alignment
-      transition: background-color 200ms, box-shadow 200ms;
-    }
-    input[type=checkbox]::after {
-      content: "";
-      transition: border-color 200ms;
-      position: absolute;
-      left: 6px;
-      top: 2px;
-      width: 5px;
-      height: 10px;
-      border: solid transparent;
-      border-width: 0 3px 3px 0;
-      -webkit-transform: rotate(45deg);
-      -ms-transform: rotate(45deg);
-      transform: rotate(45deg);
-    }
-    input[type=checkbox]:checked {
-      background-color: var(--color-primary);
-    }
-    input[type=checkbox]:checked::after {
-      border-color: var(--color-checkbox-tick);
-    }
-
-    input[type=radio] {
-      margin-right: 5px;
-      appearance: none;
-      -webkit-appearance: none;
-      -moz-appearance: none;
-      background-color: var(--color-checkbox-background);
-      height: 20px;
-      width: 20px;
-      border-radius: 100%;
-      position: relative;
-      top: -2px; // Fix alignment
-      transition: background-color 200ms, box-shadow 200ms;
-    }
-    input[type=radio]::after {
-      content: "";
-      transition: border-color 200ms;
-      position: absolute;
-      left: 10px;
-      top: 10px;
-      width: 0;
-      height: 0;
-      border-radius: 100%;
-      background-color: transparent;
-      transition: width 200ms, height 200ms, left 200ms, top 200ms, background-color 100ms;
-    }
-    input[type=radio]:checked::after {
-      background-color: var(--color-primary);
-      left: 2px;
-      top: 2px;
-      width: 16px;
-      height: 16px;
-    }
-
-    #copyBuildCommandsButton {
-      margin-left: 40px;
-    }
-    #copyBuildCommandsButton.success {
-      background: var(--color-copy-success-background);
-      border-color: var(--color-copy-success-border);
-    }
-    #copyBuildCommandsButton.fail {
-      background: var(--color-copy-fail-background);
-      border-color: var(--color-copy-fail-border);
-    }
-  </style>
-</head>
-
-<body onload="onLoad(true)" onpopstate="onLoad(false)">
-
-<div class="main">
-  <div id="languageSelectDiv">
-    <p>Choose a programming language from which you want to use TDLib:</p>
-    <select id="languageSelect" onchange="onLanguageChanged(false)" autofocus class="large">
-      <option>Choose a programming language:</option>
-      <option>Python</option>
-      <option>JavaScript</option>
-      <option>Go</option>
-      <option>Java</option>
-      <option>Kotlin</option>
-      <option>C#</option>
-      <option>C++</option>
-      <option>Swift</option>
-      <option>Objective-C</option>
-      <option>Object Pascal</option>
-      <option>Dart</option>
-      <option>Rust</option>
-      <option>Erlang</option>
-      <option>PHP</option>
-      <option>Lua</option>
-      <option>Ruby</option>
-      <option>Crystal</option>
-      <option>Haskell</option>
-      <option>Nim</option>
-      <option>Clojure</option>
-      <option>D</option>
-      <option>Elixir</option>
-      <option>Vala</option>
-      <option>C</option>
-      <option>G</option>
-      <option>Other</option>
-    </select>
-  </div>
-
-  <div id="osSelectDiv" class="hide">
-    <p>Choose an operating system on which you want to use TDLib:</p>
-    <select id="osSelect" onchange="onOsChanged()" class="large">
-      <option>Choose an operating system:</option>
-    </select>
-    <p></p>
-  </div>
-
-  <div id="linuxSelectDiv" class="hide">
-    <p>Choose a Linux distro on which you want to use TDLib:</p>
-    <select id="linuxSelect" onchange="onOsChanged()" class="large">
-      <option>Choose a Linux distro:</option>
-      <option>Alpine</option>
-      <option>CentOS 7</option>
-      <option>CentOS 8</option>
-      <option>CentOS Stream 9</option>
-      <option>Debian 10+</option>
-      <option>Ubuntu 18</option>
-      <option>Ubuntu 20</option>
-      <option>Ubuntu 22</option>
-      <option>Ubuntu 24</option>
-      <option>Other</option>
-    </select>
-    <p></p>
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-
-  <div id="buildOptionsDiv" class="hide">
-    <div id="buildLtoDiv" class="hide">
-      <label><input type="checkbox" id="buildLtoCheckbox" onchange="onOptionsChanged()"/>Enable Link Time Optimization (requires CMake >= 3.9.0). It can significantly reduce binary size and increase performance, but sometimes it can lead to build failures.</label>
-    </div>
-
-    <div id="buildDebugDiv" class="hide">
-      <label><input type="checkbox" id="buildDebugCheckbox" onchange="onOptionsChanged()"/>Build the debug binary. Debug binaries are much larger and slower than the release one.</label>
-    </div>
-
-    <div id="buildInstallLocalDiv" class="hide">
-      <label><input type="checkbox" id="buildInstallLocalCheckbox" onchange="onOptionsChanged()"/>Install built TDLib to /usr/local instead of placing the files to td/tdlib.</label>
-    </div>
-
-    <p></p>
-
-    <div id="buildCompilerDiv" class="hide">
-      <span>Choose which compiler you want to use to build TDLib:</span><br>
-      <label><input type="radio" id="buildCompilerRadioGcc" name="buildCompilerRadio" onchange="onOptionsChanged()" checked/>g++</label>
-      <label><input type="radio" id="buildCompilerRadioClang" name="buildCompilerRadio" onchange="onOptionsChanged()"/>clang (recommended)</label>
-      <p></p>
-    </div>
-
-    <div id="buildArchiverDiv" class="hide">
-      <span>Choose which archiver application you want to use for VSIX creation:</span><br>
-      <label><input type="radio" id="buildArchiverRadio7Zip" name="buildArchiverRadio" onchange="onOptionsChanged()" checked/>7-Zip</label>
-      <label><input type="radio" id="buildArchiverRadioZip" name="buildArchiverRadio" onchange="onOptionsChanged()"/>zip</label>
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-      <p></p>
-    </div>
-
-    <div id="buildShellDiv" class="hide">
-      <span>Choose which shell application you want to use for building:</span><br>
-      <label><input type="radio" id="buildShellRadioPowerShell" name="buildShellRadio" onchange="onOptionsChanged()" checked/>PowerShell</label>
-      <label><input type="radio" id="buildShellRadioBash" name="buildShellRadio" onchange="onOptionsChanged()"/>mintty/Bash</label>
-      <p></p>
-    </div>
-
-    <div id="buildShellBsdDiv" class="hide">
-      <span>Choose which shell application you want to use for building:</span><br>
-      <label><input type="radio" id="buildShellBsdRadioCsh" name="buildShellRadioBsd" onchange="onOptionsChanged()" checked/>tcsh/csh</label>
-      <label><input type="radio" id="buildShellBsdRadioBash" name="buildShellRadioBsd" onchange="onOptionsChanged()"/>Bash</label>
-      <p></p>
-    </div>
-
-    <div id="buildMacOsHostDiv" class="hide">
-      <span>Choose host architecture:</span><br>
-      <label><input type="radio" id="buildMacOsHostRadioAppleSilicon" name="buildMacOsHostRadio" onchange="onOptionsChanged()" checked/>Apple silicon</label>
-      <label><input type="radio" id="buildMacOsHostRadioIntel" name="buildMacOsHostRadio" onchange="onOptionsChanged()"/>Intel</label>
-      <p></p>
-    </div>
-
-    <div id="buildBitnessDiv" class="hide">
-      <span>Choose for which bitness you want to build TDLib:</span><br>
-      <label><input type="radio" id="buildBitnessRadio32" name="buildBitnessRadio" onchange="onOptionsChanged()" checked/>32</label>
-      <label><input type="radio" id="buildBitnessRadio64" name="buildBitnessRadio" onchange="onOptionsChanged()"/>64</label>
-      <p></p>
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-
-    <div id="buildLowMemoryDiv" class="hide">
-      <label><input type="checkbox" id="buildLowMemoryCheckbox" onchange="onOptionsChanged()"/><span id="buildLowMemoryText">Check this if you have less than 4 GB of RAM</span></label>
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-
-    <div id="buildRootDiv" class="hide">
-      <label><input type="checkbox" id="buildRootCheckbox" onchange="onOptionsChanged()"/>Build from root user (not recommended)</label>
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-
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-
-  <div id="buildTextDiv" class="hide">
-    <p id="buildText">Hidden text</p>
-  </div>
-
-  <div id="buildCommandsDiv" class="hide">
-    <p id="buildCommandsHeader">Here is complete instruction for TDLib binaries building:</p>
-    <p id="buildPre">Hidden text</p>
-    <code id="buildCommands">Empty commands</code>
-    <button id="copyBuildCommandsButton" onclick="copyBuildInstructions()">
-        <span id="copyBuildCommandsText">Copy</span>
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-function getTargetName(target) {
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-  if (target === 'Android' || target === 'AndroidJson') {
-    text = 'TDLib can be used from ' + language + ' on ' + os + ' through the ' + getTargetName(target) + ' interface.<br>' +
-           'See <a href="https://github.com/tdlib/td/blob/master/example/android">Android example</a> for the example of building TDLib for Android.<br>';
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-  var os_windows = os.includes('Windows');
-  var os_linux = os.includes('Linux');
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-  var pre_text = [];
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-    }
-    pre_text.push('Download and install <a href="https://visualstudio.microsoft.com/vs/community/">Microsoft Visual Studio</a>. Enable C++' + win10_sdk + ' support while installing.');
-    pre_text.push('Download and install <a href="https://cmake.org/download/">CMake</a>; choose "Add CMake to the system PATH" option while installing.');
-    pre_text.push('Download and install <a href="https://git-scm.com/download/win">Git</a>.');
-    pre_text.push('Download and unpack <a href="https://windows.php.net/download">PHP</a>. Add the path to php.exe to the PATH environment variable.');
-    if (target === 'C++/CX') {
-      switch (archiver) {
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-          break;
-        case 'zip':
-          pre_text.push('Download and install <a href="http://gnuwin32.sourceforge.net/packages/zip.htm">zip</a> archiver. Add the path to zip.exe to the PATH environment variable.');
-          break;
-        case 'WinRAR':
-          pre_text.push('You need bought and installed <a href="https://www.win-rar.com/start.html?&L=4">WinRAR</a> archiver. Add the path to WinRAR.exe to the PATH environment variable.');
-          break;
-      }
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-  if (target === 'JNI') {
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-      pre_text.push('Download and install <a href="https://www.oracle.com/technetwork/java/javase/downloads/index.html">JDK</a>.');
-    } else if (os_linux && linux_distro === 'Alpine') {
-      pre_text.push('Add community repository for your Alpine version (not edge) in /etc/apk/repositories. For example, you can do it through vim, preliminary installing it via "apk add vim".');
-    }
-  }
-  if (os_linux && linux_distro === 'Other') {
-    var jdk = target === 'JNI' ? ', JDK ' : '';
-    var compiler = use_clang ? 'clang >= 3.4, libc++' : 'g++ >= 4.9.2';
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-  }
-  if (os_linux && os.includes('Node.js')) {
-    pre_text.push('Note that for Node.js &ge; 17 you must build TDLib with OpenSSL 3.0.*, for Node.js &ge; 10 with OpenSSL 1.1.*, and for Node.js &lt; 10 with OpenSSL 1.0.*, so you may need to modify the following commands to install a proper OpenSSL version.');
-  }
-  if (os_freebsd) {
-    pre_text.push('Note that the following instruction is for FreeBSD 13.');
-    pre_text.push('Note that the following calls to <code>pkg</code> needs to be run as <code>root</code>.');
-  }
-  if (os_openbsd) {
-    pre_text.push('Note that the following instruction is for OpenBSD 6.7 and default KSH shell.');
-    pre_text.push('Note that building requires a lot of memory, so you may need to increase allowed per-process memory usage in /etc/login.conf or build from root.');
-  }
-  if (os_netbsd) {
-    pre_text.push('Note that the following instruction is for NetBSD 8+ and default SH shell.');
-  }
-  if (os_mac) {
-    pre_text.push('Note that the following instruction will build TDLib only for ' + os_mac_host_name + '.');
-    pre_text.push('If you want to create a universal XCFramework, take a look at our <a href="https://github.com/tdlib/td/tree/master/example/ios">example</a> instead.');
-  }
-
-  var terminal_name = (function () {
-    if (os_windows) {
-      return use_powershell ? 'PowerShell' : 'mintty/Bash';
-    }
-    if (os_mac) {
-      return 'Terminal';
-    }
-    if (os_openbsd) {
-      return 'ksh';
-    }
-    if (os_netbsd) {
-      return 'sh';
-    }
-    if (use_csh) {
-      return 'tcsh/csh';
-    }
-    return 'Bash';
-  })();
-  if (os_windows) {
-    pre_text.push('Close and re-open ' + terminal_name + ' if the PATH environment variable was changed.');
-  }
-  pre_text.push('Run these commands in ' + terminal_name + ' to build TDLib and to install it to ' + install_dir + ':');
-  document.getElementById('buildPre').innerHTML = '<ul><li>' + pre_text.join('</li><li>') + '</li></ul>';
-  document.getElementById('buildPre').style.display = 'block';
-
-  if (install_dir && install_dir !== '/usr/local') {
-    install_dir = '../tdlib';
-    if (target === 'JNI' || target === 'C++/CX') {
-      install_dir = '../../' + install_dir;
-    }
-  }
-  var jni_install_dir = '';
-  if (target === 'JNI') {
-    jni_install_dir = install_dir;
-    install_dir = '../example/java/td';
-  }
-
-  function getClangVersionSuffix() {
-    switch (linux_distro) {
-      case 'Ubuntu 18':
-        return '-6.0';
-      case 'Ubuntu 20':
-        return '-10';
-      case 'Ubuntu 22':
-        return '-14';
-      case 'Ubuntu 24':
-        return '-18';
-      default:
-        return ''; // use default version
-    }
-  }
-
-  function getLibcplusplusVersionSuffix() {
-    switch (linux_distro) {
-      case 'Ubuntu 20':
-      case 'Ubuntu 22':
-      case 'Ubuntu 24':
-        return getClangVersionSuffix();
-      default:
-        return ''; // use default version
-    }
-  }
-
-  var commands = [];
-
-  var php = 'php';
-  var cmake = 'cmake';
-  if (os_mac) {
-    commands.push('xcode-select --install');
-    commands.push('/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"');
-    commands.push('brew install gperf cmake openssl' + (target === 'JNI' ? ' coreutils' : ''));
-    if (target === 'JNI') {
-      commands.push('brew install openjdk');
-    }
-  } else if (os_linux && linux_distro !== 'Other') {
-    switch (linux_distro) {
-      case 'Alpine':
-        commands.push(sudo + 'apk update');
-        commands.push(sudo + 'apk upgrade');
-        var packages = 'alpine-sdk linux-headers git zlib-dev openssl-dev gperf php cmake';
-        if (target === 'JNI') {
-          packages += ' openjdk8';
-        }
-        commands.push(sudo + 'apk add ' + packages);
-        break;
-      case 'CentOS 7':
-        commands.push(sudo + 'yum update -y');
-        commands.push(sudo + 'yum install -y centos-release-scl-rh epel-release');
-        commands.push(sudo + 'yum install -y devtoolset-9-gcc devtoolset-9-gcc-c++');
-        var packages = 'gcc-c++ make git zlib-devel openssl-devel php gperf cmake3';
-        if (target === 'JNI') {
-          packages += ' java-11-openjdk-devel';
-        }
-        cmake = 'cmake3';
-        commands.push(sudo + 'yum install -y ' + packages);
-        break;
-      case 'CentOS 8':
-      case 'CentOS Stream 9':
-        commands.push(sudo + 'dnf update -y');
-        if (linux_distro === 'CentOS 8') {
-          commands.push(sudo + 'dnf --enablerepo=powertools install -y gperf');
-        } else {
-          commands.push(sudo + 'dnf --enablerepo=crb install -y gperf');
-        }
-        var packages = 'gcc-c++ make git zlib-devel openssl-devel php cmake';
-        if (target === 'JNI') {
-          packages += ' java-11-openjdk-devel';
-        }
-        commands.push(sudo + 'dnf install -y ' + packages);
-        break;
-      case 'Debian 10+':
-      case 'Ubuntu 18':
-      case 'Ubuntu 20':
-      case 'Ubuntu 22':
-      case 'Ubuntu 24':
-        if (linux_distro.includes('Debian') && !use_root) {
-          commands.push('su -');
-        }
-        commands.push(sudo + 'apt-get update');
-        commands.push(sudo + 'apt-get upgrade');
-        var packages = 'make git zlib1g-dev libssl-dev gperf php-cli cmake';
-        if (target === 'JNI') {
-          packages += ' default-jdk';
-        }
-        if (use_clang) {
-          packages += ' clang' + getClangVersionSuffix() + ' libc++' + getLibcplusplusVersionSuffix() + '-dev';
-          if (linux_distro === 'Debian 10+' || linux_distro === 'Ubuntu 18' || linux_distro === 'Ubuntu 20' || linux_distro === 'Ubuntu 22' || linux_distro === 'Ubuntu 24') {
-            packages += ' libc++abi' + getLibcplusplusVersionSuffix() + '-dev';
-          }
-        } else {
-          packages += ' g++';
-        }
-        commands.push(sudo + 'apt-get install ' + packages);
-        if (linux_distro.includes('Debian') && !use_root) {
-          commands.push('exit');
-        }
-        break;
-    }
-  } else if (os_freebsd) {
-    commands.push(sudo + 'pkg upgrade');
-    var packages = 'git gperf php83 cmake';
-    if (target === 'JNI') {
-      packages += ' openjdk21';
-    }
-    commands.push(sudo + 'pkg install ' + packages);
-  } else if (os_openbsd) {
-    if (!use_root) {
-      commands.push('su -');
-    }
-    var packages = 'git gperf php-7.2.10 cmake';
-    if (target === 'JNI') {
-      packages += ' jdk';
-    }
-    commands.push('pkg_add -z ' + packages);
-    if (!use_root) {
-      commands.push('exit');
-    }
-
-    php = "php-7.2";
-  } else if (os_netbsd) {
-    if (!use_root) {
-      commands.push('su -');
-    }
-    commands.push('export PKG_PATH=http://cdn.netbsd.org/pub/pkgsrc/packages/NetBSD/$(uname -p)/$(uname -r)/All');
-    var packages = 'git gperf pcre2 php-8* cmake openssl gcc12-libs mozilla-rootcerts-openssl';
-    commands.push('pkg_add ' + packages);
-    if (!use_root) {
-      commands.push('exit');
-    }
-  }
-  commands.push('git clone https://github.com/tdlib/td.git');
-
-  commands.push('cd td');
-  // commands.push('git checkout v1.8.0');
-
-  if (use_vcpkg) {
-    commands.push('git clone https://github.com/Microsoft/vcpkg.git');
-    commands.push('cd vcpkg');
-    commands.push('git checkout 07b30b49e5136a36100a2ce644476e60d7f3ddc1');
-    commands.push(local + 'bootstrap-vcpkg.bat');
-    if (target === 'C++/CX') {
-      commands.push(local + 'vcpkg.exe install gperf:x86-windows openssl:arm-uwp openssl:arm64-uwp openssl:x64-uwp openssl:x86-uwp zlib:arm-uwp zlib:arm64-uwp zlib:x64-uwp zlib:x86-uwp');
-    } else {
-      if (build_64bit) {
-        commands.push(local + 'vcpkg.exe install gperf:x64-windows openssl:x64-windows zlib:x64-windows');
-      } else {
-        commands.push(local + 'vcpkg.exe install gperf:x86-windows openssl:x86-windows zlib:x86-windows');
-      }
-    }
-    commands.push('cd ..');
-  }
-
-  function getBacicCmakeInitOptions() {
-    var options = [];
-    if (!use_msvc) {
-      options.push('-DCMAKE_BUILD_TYPE=' + (is_debug_build ? 'Debug' : 'Release'));
-    }
-    if (use_msvc) {
-      if (build_64bit) {
-        options.push('-A x64');
-      } else {
-        options.push('-A Win32');
-      }
-    }
-    if (target === 'JNI') {
-      if (os_linux && linux_distro === 'Alpine') {
-        options.push('-DJAVA_HOME=/usr/lib/jvm/java-1.8-openjdk/');
-      }
-      if (os_freebsd) {
-        options.push('-DJAVA_HOME=/usr/local/openjdk7/');
-      }
-      if (os_mac) {
-        options.push('-DJAVA_HOME=' + homebrew_install_dir + '/opt/openjdk/libexec/openjdk.jdk/Contents/Home/');
-      }
-    }
-    return options;
-  }
-
-  if (target === 'C++/CX') {
-    commands.push('cd example/uwp');
-    var archiver_option = '';
-    switch (archiver) {
-      case 'zip':
-        archiver_option = ' -compress zip';
-        break;
-      case 'WinRAR':
-        archiver_option = ' -compress winrar';
-        break;
-    }
-
-    commands.push('powershell -ExecutionPolicy ByPass ' + local + 'build.ps1 -vcpkg_root ../../vcpkg -mode clean');
-    commands.push('powershell -ExecutionPolicy ByPass ' + local + 'build.ps1 -vcpkg_root ../../vcpkg' + archiver_option);
-    if (install_dir) {
-      commands.push('cp build-uwp/vsix/tdlib.vsix ' + install_dir);
-    }
-    commands.push('cd ../..');
-  } else {
-    commands.push(use_powershell ? 'Remove-Item build -Force -Recurse -ErrorAction SilentlyContinue' : 'rm -rf build');
-    commands.push('mkdir build');
-    commands.push('cd build');
-
-    cmake_init_options = getBacicCmakeInitOptions();
-    if (os_mac) {
-      cmake_init_options.push('-DOPENSSL_ROOT_DIR=' + homebrew_install_dir + '/opt/openssl/');
-    }
-    if (install_dir) {
-      cmake_init_options.push('-DCMAKE_INSTALL_PREFIX:PATH=' + install_dir);
-    }
-    if (target === 'JNI') {
-      cmake_init_options.push('-DTD_ENABLE_JNI=ON');
-    }
-    if (target === 'C++/CX' || target === 'C++/CLI') {
-      cmake_init_options.push('-DTD_ENABLE_DOTNET=ON');
-    }
-    if (use_lto) {
-      cmake_init_options.push('-DTD_ENABLE_LTO=ON');
-    }
-    if (use_vcpkg) {
-      cmake_init_options.push('-DCMAKE_TOOLCHAIN_FILE:FILEPATH=../vcpkg/scripts/buildsystems/vcpkg.cmake');
-    }
-
-    function getCmakeInitCommand(options) {
-      var prefix = '';
-      if (os_linux) {
-        if (use_clang) {
-          var clang_version_suffix = getClangVersionSuffix();
-          prefix = 'CXXFLAGS="-stdlib=libc++" CC=/usr/bin/clang' + clang_version_suffix + ' CXX=/usr/bin/clang++' + clang_version_suffix + ' ';
-          if (use_lto) {
-            options.push('-DCMAKE_AR=/usr/bin/llvm-ar' + clang_version_suffix);
-            options.push('-DCMAKE_NM=/usr/bin/llvm-nm' + clang_version_suffix);
-            options.push('-DCMAKE_OBJDUMP=/usr/bin/llvm-objdump' + clang_version_suffix);
-            options.push('-DCMAKE_RANLIB=/usr/bin/llvm-ranlib' + clang_version_suffix);
-          }
-        } else if (linux_distro === 'CentOS 7') {
-          prefix = 'CC=/opt/rh/devtoolset-9/root/usr/bin/gcc CXX=/opt/rh/devtoolset-9/root/usr/bin/g++ ';
-        }
-      }
-      return prefix + cmake + ' ' + options.join(' ') + ' ..';
-    }
-    commands.push(getCmakeInitCommand(cmake_init_options));
-
-    if (low_memory) {
-      commands.push(cmake + ' --build . --target prepare_cross_compiling');
-      commands.push('cd ..');
-      commands.push(php + ' SplitSource.php');
-      commands.push('cd build');
-    }
-
-    let build_command = cmake + ' --build .';
-    if (install_dir) {
-      build_command += ' --target install';
-    }
-    if (use_msvc) {
-      if (target === 'C++/CLI' || !is_debug_build) {
-        commands.push(build_command + ' --config Release');
-      }
-      if (target === 'C++/CLI' || is_debug_build) {
-        commands.push(build_command + ' --config Debug');
-      }
-    } else {
-      commands.push(build_command);
-    }
-    commands.push('cd ..');
-    if (target === 'JNI') {
-      commands.push('cd example/java');
-      commands.push(use_powershell ? 'Remove-Item build -Force -Recurse -ErrorAction SilentlyContinue' : 'rm -rf build');
-      commands.push('mkdir build');
-      commands.push('cd build');
-
-      cmake_init_options = getBacicCmakeInitOptions();
-      if (jni_install_dir) {
-        cmake_init_options.push('-DCMAKE_INSTALL_PREFIX:PATH=' + jni_install_dir);
-      }
-      if (use_vcpkg) {
-        cmake_init_options.push('-DCMAKE_TOOLCHAIN_FILE:FILEPATH=../../../vcpkg/scripts/buildsystems/vcpkg.cmake');
-      }
-      var is_alpine = os_linux && linux_distro === 'Alpine';
-      var resolve_path = use_powershell ? 'Resolve-Path' : (os_mac ? 'greadlink -e' : (is_alpine || os_freebsd || os_openbsd || os_netbsd ? 'readlink -f' : 'readlink -e'));
-      var resolved_path = resolve_path + ' ../td/lib/cmake/Td';
-      if (use_csh) {
-        cmake_init_options.push('-DTd_DIR:PATH=$td_dir');
-        commands.push('set td_dir=`' + resolved_path + '` ; ' + getCmakeInitCommand(cmake_init_options));
-      } else {
-        cmake_init_options.push('-DTd_DIR:PATH=$(' + resolved_path + ')');
-        commands.push(getCmakeInitCommand(cmake_init_options));
-      }
-
-      build_command = cmake + ' --build .';
-      if (jni_install_dir) {
-        build_command += ' --target install';
-      }
-      if (use_msvc) {
-        build_command += (is_debug_build ? ' --config Debug' : ' --config Release');
-      }
-      commands.push(build_command);
-      commands.push('cd ../../..');
-    } else if (target === 'C++/CX' || target === 'C++/CLI') {
-      commands.push('git checkout td/telegram/Client.h td/telegram/Log.h td/tl/TlObject.h');
-    }
-    if (low_memory) {
-      commands.push(php + ' SplitSource.php --undo');
-    }
-    commands.push('cd ..');
-  }
-  if (jni_install_dir) {
-    install_dir = jni_install_dir;
-  }
-  if (install_dir) {
-    if (install_dir !== '/usr/local') {
-      install_dir = 'td/tdlib';
-    }
-    commands.push((use_powershell ? 'dir ' : 'ls -l ') + install_dir);
-  }
-  document.getElementById('buildCommands').innerHTML = '<ul><li>' + commands.join('</li><li>') + '</li></ul>';
-  document.getElementById('copyBuildCommandsButton').style.display = commands.includes('exit') ? 'none' : 'block';
-}
-
-function copyBuildInstructions() {
-  var text = document.getElementById('buildCommands').innerText;
-
-  function resetButtonState (state) {
-    document.getElementById('copyBuildCommandsButton').classList.remove(state);
-    document.getElementById('copyBuildCommandsText').innerText = "Copy";
-  }
-
-  navigator.clipboard.writeText(text).then(result => {
-    document.getElementById('copyBuildCommandsButton').classList.add('success');
-    document.getElementById('copyBuildCommandsText').innerText = "Copied!";
-    setTimeout(() => resetButtonState('success'), 5000);
-  }, error => {
-    document.getElementById('copyBuildCommandsButton').classList.add('fail');
-    document.getElementById('copyBuildCommandsText').innerText = "Couldn't copy :(";
-    setTimeout(() => resetButtonState('fail'), 5000);
-  })
-}
-
-</script>
-
-</body>
-</html>
diff --git a/third-party/td/td/example/README.md b/third-party/td/td/example/README.md
deleted file mode 100644
index 74fd30f18c..0000000000
--- a/third-party/td/td/example/README.md
+++ /dev/null
@@ -1,321 +0,0 @@
-# TDLib usage and build examples
-
-This directory contains basic examples of TDLib usage from different programming languages and examples of library building for different platforms.
-If you are looking for documentation of all available TDLib methods, see the [td_api.tl](https://github.com/tdlib/td/blob/master/td/generate/scheme/td_api.tl) scheme or the
-automatically generated [HTML documentation](https://core.telegram.org/tdlib/docs/td__api_8h.html) for a list of all available TDLib
-[methods](https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_function.html) and [classes](https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_object.html).
-Also, take a look at our [Getting Started](https://core.telegram.org/tdlib/getting-started) tutorial for a description of basic TDLib concepts.
-
-TDLib can be easily used from almost any programming language on any platform. See a [TDLib build instructions generator](https://tdlib.github.io/td/build.html) for detailed instructions on how to build TDLib.
-Choose your preferred programming language to see examples of usage and a detailed description:
-
-- [Python](#python)
-- [JavaScript](#javascript)
-- [Go](#go)
-- [Java](#java)
-- [Kotlin](#kotlin)
-- [C#](#csharp)
-- [C++](#cxx)
-- [Swift](#swift)
-- [Objective-C](#objective-c)
-- [Object Pascal](#object-pascal)
-- [Dart](#dart)
-- [Rust](#rust)
-- [Erlang](#erlang)
-- [PHP](#php)
-- [Lua](#lua)
-- [Ruby](#ruby)
-- [Crystal](#crystal)
-- [Haskell](#haskell)
-- [Nim](#nim)
-- [Clojure](#clojure)
-- [Emacs Lisp](#emacslisp)
-- [D](#d)
-- [Elixir](#elixir)
-- [Vala](#vala)
-- [1С](#1s)
-- [C](#c)
-- [G](#g)
-- [Other](#other)
-
-<a name="python"></a>
-## Using TDLib in Python projects
-
-TDLib can be used from Python through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-Convenient Python wrappers already exist for our JSON interface.
-
-If you use Python >= 3.6, take a look at [python-telegram](https://github.com/alexander-akhmetov/python-telegram).
-The wrapper uses the full power of asyncio, has a good documentation and has several examples. It can be installed through pip or used in a Docker container.
-You can also try a fork [python-telegram](https://github.com/iTeam-co/pytglib) of this library.
-
-If you want to use TDLib with asyncio and Python >= 3.9, take a look at [aiotdlib](https://github.com/pylakey/aiotdlib) or [Pytdbot](https://github.com/pytdbot/client).
-
-For older Python versions you can use [pytdlib](https://github.com/pytdlib/pytdlib).
-This wrapper contains generator for TDLib API classes and basic interface for interaction with TDLib.
-
-You can also check out [example/python/tdjson_example.py](https://github.com/tdlib/td/blob/master/example/python/tdjson_example.py),
-[tdlib-python](https://github.com/JunaidBabu/tdlib-python), or [Python Wrapper TDLib](https://github.com/alvhix/pywtdlib) for some basic examples of TDLib JSON interface integration with Python.
-
-<a name="javascript"></a>
-## Using TDLib in JavaScript projects
-
-TDLib can be compiled to WebAssembly and used in a browser from JavaScript. See [tdweb](https://github.com/tdlib/td/tree/master/example/web) as a convenient wrapper for TDLib in a browser
-and [telegram-react](https://github.com/evgeny-nadymov/telegram-react) as an example of a TDLib-based Telegram client.
-
-See also [Svelte-tdweb-starter](https://github.com/gennadypolakov/svelte-tdweb-starter) - Svelte wrapper for tdweb, and [Telegram-Photoframe](https://github.com/lukefx/telegram-photoframe) - a web application that displays your preferred group or channel as Photoframe.
-
-TDLib can be used from Node.js through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-Convenient Node.js wrappers already exist for our JSON interface.
-For example, take a look at [Airgram](https://github.com/airgram/airgram) – modern TDLib framework for TypeScript/JavaScript, or
-at [tdl](https://github.com/eilvelia/tdl), which provides a convenient, fully-asynchronous interface for interaction with TDLib and contains a bunch of examples.
-
-You can also see [TdNode](https://github.com/puppy0cam/TdNode), [tglib](https://github.com/nodegin/tglib), [node-tdlib](https://github.com/wfjsw/node-tdlib), [tdlnode](https://github.com/fonbah/tdlnode),
-[Paper Plane](https://github.com/par6n/paper-plane), or [node-tlg](https://github.com/dilongfa/node-tlg) for other examples of TDLib JSON interface integration with Node.js.
-
-See also the source code of [DIBgram](https://github.com/DIBgram/DIBgram) - an unofficial Telegram web application which looks like Telegram Desktop.
-
-TDLib can be used also from NativeScript through the [JSON](https://github.com/tdlib/td#using-json) interface.
-See [nativescript-tglib](https://github.com/arpit2438735/nativescript-tglib) as an example of a NativeScript library for building Telegram clients.
-
-<a name="go"></a>
-## Using TDLib in Go projects
-
-TDLib can be used from the Go programming language through the [JSON](https://github.com/tdlib/td#using-json) interface and Cgo, and can be linked either statically or dynamically.
-
-Convenient Go wrappers already exist for our JSON interface.
-For example, take a look at [github.com/zelenin/go-tdlib](https://github.com/zelenin/go-tdlib) or [github.com/Arman92/go-tdlib](https://github.com/Arman92/go-tdlib), which provide a convenient TDLib client, a generator for TDLib API classes and contain many examples.
-
-You can also see [github.com/aliforever/go-tdlib](https://github.com/aliforever/go-tdlib) for another examples of TDLib JSON interface integration with Go.
-
-<a name="java"></a>
-## Using TDLib in Java projects
-
-TDLib can be used from the Java programming language through native [JNI](https://github.com/tdlib/td#using-java) binding.
-
-We provide a generator for JNI bridge methods and Java classes for all TDLib API methods and objects.
-See [example/java](https://github.com/tdlib/td/tree/master/example/java) for an example of using TDLib from desktop Java along with detailed building and usage instructions.
-See [example/android](https://github.com/tdlib/td/tree/master/example/android) for detailed build instructions for Android.
-
-<a name="kotlin"></a>
-## Using TDLib in Kotlin projects
-
-TDLib can be used from the Kotlin/JVM programming language through same way as in [Java](#java).
-
-You can also use [ktd](https://github.com/whyoleg/ktd) library with Kotlin-specific bindings.
-
-See also [td-ktx](https://github.com/tdlibx/td-ktx) - Kotlin coroutines wrapper for TDLib.
-
-<a name="csharp"></a>
-## Using TDLib in C# projects
-
-TDLib provides a native [.NET](https://github.com/tdlib/td#using-dotnet) interface through `C++/CLI` and `C++/CX`.
-See [tdlib-netcore](https://github.com/dantmnf/tdlib-netcore) for a SWIG-like binding with automatically generated classes for TDLib API.
-See [example/uwp](https://github.com/tdlib/td/tree/master/example/uwp) for an example of building TDLib SDK for the Universal Windows Platform and an example of its usage from C#.
-See [example/csharp](https://github.com/tdlib/td/tree/master/example/csharp) for an example of building TDLib with `C++/CLI` support and an example of TDLib usage from C# on Windows.
-
-If you want to write a cross-platform C# application using .NET Core, see [tdsharp](https://github.com/egramtel/tdsharp). It uses our [JSON](https://github.com/tdlib/td#using-json) interface,
-provides an asynchronous interface for interaction with TDLib, automatically generated classes for TDLib API and has some examples.
-
-Also, see [Unigram](https://github.com/UnigramDev/Unigram), which is a full-featured client rewritten from scratch in C# using TDLib SDK for Universal Windows Platform in less than 2 months,
-[egram.tel](https://github.com/egramtel/egram.tel) – a cross-platform Telegram client written in C#, .NET Core, ReactiveUI and Avalonia, or
-[telewear](https://github.com/telewear/telewear) - a Telegram client for Samsung watches.
-
-<a name="cxx"></a>
-## Using TDLib in C++ projects
-
-TDLib has a simple and convenient C++11-interface for sending and receiving requests and can be statically linked to your application.
-
-See [example/cpp](https://github.com/tdlib/td/tree/master/example/cpp) for an example of TDLib usage from C++.
-[td_example.cpp](https://github.com/tdlib/td/blob/master/example/cpp/td_example.cpp) contains an example of authorization, processing new incoming messages, getting a list of chats and sending a text message.
-
-See also the source code of [Fernschreiber](https://github.com/Wunderfitz/harbour-fernschreiber) and [Depecher](https://github.com/blacksailer/depecher) – Telegram apps for Sailfish OS,
-[TELEports](https://gitlab.com/ubports/development/apps/teleports) – a Qt-client for Ubuntu Touch, [tdlib-purple](https://github.com/ars3niy/tdlib-purple) - Telegram plugin for Pidgin,
-or [MeeGram](https://github.com/qtinsider/meegram2) - a Telegram client for Nokia N9,
-[TDLib Native Sciter Extension](https://github.com/EricKotato/TDLibNSE) - a Sciter native extension for TDLib's JSON interface, all of which are based on TDLib.
-
-<a name="swift"></a>
-## Using TDLib in Swift projects
-
-TDLib can be used from the Swift programming language through the [JSON](https://github.com/tdlib/td#using-json) interface and can be linked statically or dynamically.
-
-See [example/ios](https://github.com/tdlib/td/tree/master/example/ios) for an example of building TDLib for iOS, watchOS, tvOS, visionOS, and macOS.
-
-See [TDLibKit](https://github.com/Swiftgram/TDLibKit), [tdlib-swift](https://github.com/modestman/tdlib-swift), or [TDLib-iOS](https://github.com/leoMehlig/TDLib-iOS), which provide convenient TDLib clients with automatically generated and fully-documented classes for all TDLib API methods and objects.
-
-See also the source code of [Moc](https://github.com/mock-foundation/moc) - a native and powerful macOS and iPadOS Telegram client, optimized for moderating large communities and personal use.
-
-See [example/swift](https://github.com/tdlib/td/tree/master/example/swift) for an example of a macOS Swift application.
-
-<a name="objective-c"></a>
-## Using TDLib in Objective-C projects
-
-TDLib can be used from the Objective-C programming language through [JSON](https://github.com/tdlib/td#using-json) interface and can be linked statically or dynamically.
-
-See [example/ios](https://github.com/tdlib/td/tree/master/example/ios) for an example of building TDLib for iOS, watchOS, tvOS, visionOS, and macOS.
-
-<a name="object-pascal"></a>
-## Using TDLib in Object Pascal projects with Delphi and Lazarus
-
-TDLib can be used from the Object Pascal programming language through the [JSON](https://github.com/tdlib/td#using-json).
-
-See [tdlib-delphi](https://github.com/dieletro/tdlib-delphi) for an example of TDLib usage from Delphi.
-
-See [tdlib-lazarus](https://github.com/dieletro/tdlib-lazarus) for an example of TDLib usage from Lazarus.
-
-<a name="dart"></a>
-## Using TDLib in Dart projects
-
-TDLib can be used from the Dart programming language through the [JSON](https://github.com/tdlib/td#using-json) interface and a Dart Native Extension or Dart FFI.
-
-See [tdlib-dart](https://github.com/ivk1800/tdlib-dart), which provide convenient TDLib client with automatically generated and fully-documented classes for all TDLib API methods and objects.
-
-See also [dart_tdlib](https://github.com/periodicaidan/dart_tdlib), [flutter_libtdjson](https://github.com/up9cloud/flutter_libtdjson), [Dart wrapper for TDLib](https://github.com/tdlib/td/pull/708/commits/237060abd4c205768153180e9f814298d1aa9d49), or [tdlib_bindings](https://github.com/lesnitsky/tdlib_bindings) for an example of a TDLib Dart bindings through FFI.
-
-See [Telegram Client library](https://github.com/azkadev/telegram_client), [project.scarlet](https://github.com/aaugmentum/project.scarlet), [tdlib](https://github.com/i-Naji/tdlib),
-[tdlib-dart](https://github.com/drewpayment/tdlib-dart), [FluGram](https://github.com/triedcatched/tdlib-dart), or [telegram-service](https://github.com/igorder-dev/telegram-service) for examples of using TDLib from Dart.
-
-See also [telegram-flutter](https://github.com/ivk1800/telegram-flutter) - Telegram client written in Dart, and [f-Telegram](https://github.com/evgfilim1/ftg) - Flutter Telegram client.
-
-<a name="rust"></a>
-## Using TDLib in Rust projects
-
-TDLib can be used from the Rust programming language through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-See [rust-tdlib](https://github.com/antonio-antuan/rust-tdlib), or [tdlib](https://github.com/paper-plane-developers/tdlib-rs), which provide convenient TDLib clients with automatically generated and fully-documented classes for all TDLib API methods and objects.
-
-See [rtdlib](https://github.com/fewensa/rtdlib), [tdlib-rs](https://github.com/d653/tdlib-rs), [tdlib-futures](https://github.com/yuri91/tdlib-futures),
-[tdlib-sys](https://github.com/nuxeh/tdlib-sys), [tdjson-rs](https://github.com/mersinvald/tdjson-rs), [rust-tdlib](https://github.com/vhaoran/rust-tdlib), or [tdlib-json-sys](https://github.com/aykxt/tdlib-json-sys) for examples of TDLib Rust bindings.
-
-Also, see [Paper Plane](https://github.com/paper-plane-developers/paper-plane) – a Telegram client written in Rust and GTK.
-
-<a name="erlang"></a>
-## Using TDLib in Erlang projects
-
-TDLib can be used from the Erlang programming language through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-See [erl-tdlib](https://github.com/lattenwald/erl-tdlib) for an example of TDLib Erlang bindings.
-
-<a name="php"></a>
-## Using TDLib in PHP projects
-
-If you use modern PHP >= 7.4, you can use TDLib via a PHP FFI extension. For example, take a look at [ffi-tdlib](https://github.com/aurimasniekis/php-ffi-tdlib), or [tdlib-php-ffi](https://github.com/thisismzm/tdlib-php-ffi) - FFI-based TDLib wrappers.
-
-See also [tdlib-schema](https://github.com/aurimasniekis/php-tdlib-schema) - a generator for TDLib API classes.
-
-For older PHP versions you can use TDLib by wrapping its functionality in a PHP extension.
-
-See [phptdlib](https://github.com/yaroslavche/phptdlib), [tdlib](https://github.com/aurimasniekis/php-ext-tdlib), or [PIF-TDPony](https://github.com/danog/pif-tdpony)
-for examples of such extensions which provide access to TDLib from PHP.
-
-See [tdlib-bundle](https://github.com/yaroslavche/tdlib-bundle) – a Symfony bundle based on [phptdlib](https://github.com/yaroslavche/phptdlib).
-
-<a name="lua"></a>
-## Using TDLib in Lua projects
-
-TDLib can be used from the Lua programming language through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-See [luajit-tdlib](https://github.com/Rami-Sabbagh/luajit-tdlib), [tdlua](https://github.com/giuseppeM99/tdlua), or
-[luajit-tdlib](https://github.com/Playermet/luajit-tdlib) for examples of TDLib Lua bindings and basic usage examples.
-
-See also [tdbot](https://github.com/vysheng/tdbot), which makes all TDLib features available from Lua scripts.
-
-<a name="d"></a>
-## Using TDLib in D projects
-
-TDLib can be used from the D programming language through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-See [d-tdlib-service](https://github.com/Lord-Evil/d-tdlib-service) for an example of TDLib D bindings.
-
-<a name="ruby"></a>
-## Using TDLib in Ruby projects
-
-TDLib can be used from the Ruby programming language through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-See [tdlib-ruby](https://github.com/southbridgeio/tdlib-ruby) for examples of Ruby bindings and a client for TDLib.
-
-<a name="Crystal"></a>
-## Using TDLib in Crystal projects
-
-TDLib can be used from the Crystal programming language through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-See [Proton](https://github.com/protoncr/proton) for examples of Crystal bindings with automatically generated types for all TDLib API methods and objects.
-
-<a name="haskell"></a>
-## Using TDLib in Haskell projects
-
-TDLib can be used from the Haskell programming language.
-
-See [haskell-tdlib](https://github.com/mejgun/haskell-tdlib) or [tdlib](https://github.com/poscat0x04/tdlib) for examples of such usage and Haskell wrappers for TDLib.
-This library contains automatically generated Haskell types for all TDLib API methods and objects.
-
-<a name="nim"></a>
-## Using TDLib in Nim projects
-
-TDLib can be used from the Nim programming language.
-
-See [telenim](https://github.com/Ethosa/telenim) for example of such usage and a Nim wrapper for TDLib.
-
-<a name="clojure"></a>
-## Using TDLib in Clojure projects
-
-TDLib can be used from the Clojure programming language through the [JSON](https://github.com/tdlib/td#using-json) interface.
-
-See [clojure-tdlib-json-wrapper](https://github.com/MityaSaray/clojure-tdlib-json) for an example of TDLib Clojure bindings.
-
-<a name="emacslisp"></a>
-## Using TDLib in Emacs Lisp projects
-
-TDLib can be used from the Emacs Lisp programming language.
-
-See [telega.el](https://github.com/zevlg/telega.el) for an example of a GNU Emacs Telegram client.
-
-<a name="elixir"></a>
-## Using TDLib in Elixir projects
-
-TDLib can be used from the Elixir programming language.
-
-See [Elixir TDLib](https://github.com/QuantLayer/elixir-tdlib) for an example of such usage and an Elixir client for TDLib.
-The library contains automatically generated and fully-documented classes for all TDLib API methods and objects.
-
-<a name="vala"></a>
-## Using TDLib in Vala projects
-
-TDLib can be used from the Vala programming language.
-
-See [TDLib Vala](https://github.com/AYMENJD/td-vala) for an example of such usage.
-
-<a name="1s"></a>
-## Using TDLib from 1С:Enterprise
-
-TDLib can be used from the 1С programming language.
-
-See [TDLib bindings for 1С:Enterprise](https://github.com/Infactum/telegram-native) and [e1c.tAgents](https://github.com/fedbka/e1c.tAgents) for examples of such usage.
-
-<a name="c"></a>
-## Using TDLib in C projects
-
-TDLib can be used from the C programming language through the [JSON](https://github.com/tdlib/td#using-json) interface and can be linked statically or dynamically.
-
-See [easy-tg](https://github.com/Trumeet/easy-tg) for an example of such usage.
-
-You can also try to use our [C](https://github.com/tdlib/td/blob/master/td/telegram/td_c_client.h) client, which was used by the private TDLib-based version of [telegram-cli](https://github.com/vysheng/tg).
-
-<a name="g"></a>
-## Using TDLib from G projects
-
-TDLib can be used from the G graphical programming language in LabVIEW development environment.
-
-See [TDLib bindings for LabVIEW](https://github.com/IvanLisRus/Telegram-Client_TDLib) for examples of such usage.
-
-<a name="other"></a>
-## Using TDLib from other programming languages
-
-You can use TDLib from any other programming language using [tdbot](https://github.com/vysheng/tdbot) or [TDLib JSON CLI](https://github.com/oott123/tdlib-json-cli),
-which provide a command line tool for interaction with TDLIb using the [JSON](https://github.com/tdlib/td#using-json) interface through stdin and stdout.
-You can use this method to use TDLib, for example, from Brainfuck (unfortunately, we haven't seen examples of sending a Telegram message through TDLib on Brainfuck yet).
-
-Alternatively, you can use the TDLib [JSON](https://github.com/tdlib/td#using-json) interface directly from your programming language.
-
-Feel free to create an issue, if you have created a valuable TDLib binding or a TDLib client in some programming language and want it to be added to this list of examples.
diff --git a/third-party/td/td/example/android/.gitignore b/third-party/td/td/example/android/.gitignore
deleted file mode 100644
index a9e9f6d0d5..0000000000
--- a/third-party/td/td/example/android/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-/SDK*
-/tdlib*
-/third-party*
diff --git a/third-party/td/td/example/android/AddIntDef.php b/third-party/td/td/example/android/AddIntDef.php
deleted file mode 100644
index d4ae4a65bd..0000000000
--- a/third-party/td/td/example/android/AddIntDef.php
+++ /dev/null
@@ -1,51 +0,0 @@
-<?php
-    if ($argc !== 2) {
-        exit();
-    }
-    $file = file_get_contents($argv[1]);
-
-    if (strpos($file, 'androidx.annotation.IntDef') !== false) {
-        exit();
-    }
-
-    $file = str_replace('import androidx.annotation.Nullable;', 'import androidx.annotation.IntDef;'.PHP_EOL.
-                                                                'import androidx.annotation.Nullable;'.PHP_EOL.
-                                                                PHP_EOL.
-                                                                'import java.lang.annotation.Retention;'.PHP_EOL.
-                                                                'import java.lang.annotation.RetentionPolicy;'.PHP_EOL, $file);
-
-    preg_match_all('/public static class ([A-Za-z0-9]+) extends ([A-Za-z0-9]+)/', $file, $matches, PREG_SET_ORDER);
-    $children = [];
-    foreach ($matches as $val) {
-        if ($val[2] === 'Object') {
-            continue;
-        }
-
-        $children[$val[2]][] = '            '.$val[1].'.CONSTRUCTOR';
-    }
-
-    $file = preg_replace_callback('/public abstract static class ([A-Za-z0-9]+)(<R extends Object>)? extends Object [{]/',
-        function ($val) use ($children) {
-            $values = implode(','.PHP_EOL, $children[$val[1]]);
-            return $val[0].<<<EOL
-
-        /**
-         * Describes possible values returned by getConstructor().
-         */
-        @Retention(RetentionPolicy.SOURCE)
-        @IntDef({
-$values
-        })
-        public @interface Constructors {}
-
-        /**
-         * @return identifier uniquely determining type of the object.
-         */
-        @Constructors
-        @Override
-        public abstract int getConstructor();
-EOL;
-        },
-        $file);
-
-    file_put_contents($argv[1], $file);
diff --git a/third-party/td/td/example/android/CMakeLists.txt b/third-party/td/td/example/android/CMakeLists.txt
deleted file mode 100644
index 949a6e4b26..0000000000
--- a/third-party/td/td/example/android/CMakeLists.txt
+++ /dev/null
@@ -1,72 +0,0 @@
-cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
-
-project(TdAndroid VERSION 1.0 LANGUAGES CXX)
-
-set(TD_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../..)
-
-option(TD_ANDROID_JSON "Use \"ON\" to build JSON interface.")
-option(TD_ANDROID_JSON_JAVA "Use \"ON\" to build Java wrapper for JSON API.")
-
-if (TD_ANDROID_JSON)
-  if (CMAKE_CROSSCOMPILING)
-    string(APPEND CMAKE_CXX_FLAGS_RELWITHDEBINFO " -flto=thin -Oz")
-    list(APPEND CMAKE_FIND_ROOT_PATH "${OPENSSL_ROOT_DIR}")
-  endif()
-  add_subdirectory(${TD_DIR} td)
-  return()
-endif()
-
-if (NOT TD_ANDROID_JSON_JAVA)
-  option(TD_ENABLE_JNI "Enable JNI-compatible TDLib API" ON)
-endif()
-
-if (CMAKE_CROSSCOMPILING)
-  set(CMAKE_MODULE_PATH "${TD_DIR}/CMake")
-
-  include(TdSetUpCompiler)
-  td_set_up_compiler()
-  string(APPEND CMAKE_CXX_FLAGS_RELWITHDEBINFO " -flto=thin -Oz")
-
-  list(APPEND CMAKE_FIND_ROOT_PATH "${OPENSSL_ROOT_DIR}")
-  add_subdirectory(${TD_DIR} td)
-
-  add_library(tdjni SHARED "${TD_DIR}/example/java/td_jni.cpp")
-
-  if (TD_ANDROID_JSON_JAVA)
-    target_link_libraries(tdjni PRIVATE Td::TdJsonStatic)
-    target_compile_definitions(tdjni PRIVATE TD_JSON_JAVA=1)
-    set_target_properties(tdjni PROPERTIES OUTPUT_NAME "tdjsonjava")
-  else()
-    target_link_libraries(tdjni PRIVATE Td::TdStatic)
-  endif()
-  target_compile_definitions(tdjni PRIVATE PACKAGE_NAME="org/drinkless/tdlib")
-
-  add_custom_command(TARGET tdjni POST_BUILD
-    COMMAND ${CMAKE_COMMAND} -E rename $<TARGET_FILE:tdjni> $<TARGET_FILE:tdjni>.debug
-    COMMAND ${CMAKE_STRIP} --strip-debug --strip-unneeded $<TARGET_FILE:tdjni>.debug -o $<TARGET_FILE:tdjni>)
-else()
-  add_subdirectory(${TD_DIR} td)
-
-  if (TD_ANDROID_JSON_JAVA)
-    return()
-  endif()
-
-  set(TD_API_JAVA_PACKAGE "org/drinkless/tdlib")
-  set(TD_API_JAVA_PATH "${CMAKE_CURRENT_SOURCE_DIR}/${TD_API_JAVA_PACKAGE}/TdApi.java")
-  set(TD_API_TLO_PATH "${TD_DIR}/td/generate/auto/tlo/td_api.tlo")
-  set(TD_API_TL_PATH "${TD_DIR}/td/generate/scheme/td_api.tl")
-  set(JAVADOC_TL_DOCUMENTATION_GENERATOR_PATH "${TD_DIR}/td/generate/JavadocTlDocumentationGenerator.php")
-  set(GENERATE_JAVA_CMD td_generate_java_api TdApi ${TD_API_TLO_PATH} ${CMAKE_CURRENT_SOURCE_DIR} ${TD_API_JAVA_PACKAGE})
-  if (PHP_EXECUTABLE)
-    set(GENERATE_JAVA_CMD ${GENERATE_JAVA_CMD} &&
-        ${PHP_EXECUTABLE} ${JAVADOC_TL_DOCUMENTATION_GENERATOR_PATH} ${TD_API_TL_PATH} ${TD_API_JAVA_PATH} androidx.annotation.Nullable @Nullable &&
-        ${PHP_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/AddIntDef.php ${TD_API_JAVA_PATH})
-  endif()
-
-  file(MAKE_DIRECTORY ${TD_API_JAVA_PACKAGE})
-  add_custom_target(tl_generate_java
-    COMMAND ${GENERATE_JAVA_CMD}
-    COMMENT "Generate Java TL source files"
-    DEPENDS td_generate_java_api tl_generate_tlo ${TD_API_TLO_PATH} ${TD_API_TL_PATH}
-  )
-endif()
diff --git a/third-party/td/td/example/android/Dockerfile b/third-party/td/td/example/android/Dockerfile
deleted file mode 100644
index 0f00a66858..0000000000
--- a/third-party/td/td/example/android/Dockerfile
+++ /dev/null
@@ -1,28 +0,0 @@
-FROM --platform=linux/amd64 ubuntu:24.04 AS build
-
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -yq default-jdk g++ git gperf make perl php-cli unzip wget && rm -rf /var/lib/apt/lists/*
-
-WORKDIR /home
-
-ARG ANDROID_NDK_VERSION=23.2.8568313
-COPY ./check-environment.sh ./fetch-sdk.sh ./
-RUN ./fetch-sdk.sh SDK "$ANDROID_NDK_VERSION"
-
-ARG OPENSSL_VERSION=OpenSSL_1_1_1w
-ARG BUILD_SHARED_OPENSSL_LIBS=
-COPY ./build-openssl.sh ./
-RUN ./build-openssl.sh SDK "$ANDROID_NDK_VERSION" openssl "$OPENSSL_VERSION" "$BUILD_SHARED_OPENSSL_LIBS"
-
-ADD "https://api.github.com/repos/tdlib/td/git/refs/heads/master" version.json
-ARG COMMIT_HASH=master
-RUN git clone https://github.com/tdlib/td.git && cd td && git checkout "$COMMIT_HASH"
-RUN cd td && git merge-base --is-ancestor 872d8ebd3ba9d922169839e6a24cee08b02b328a "$COMMIT_HASH"
-
-ARG ANDROID_STL=c++_static
-ARG TDLIB_INTERFACE=Java
-RUN td/example/android/build-tdlib.sh SDK "$ANDROID_NDK_VERSION" openssl "$ANDROID_STL" "$TDLIB_INTERFACE" && rm -rf td/example/android/build-*
-
-
-FROM scratch
-
-COPY --from=build /home/td/example/android/tdlib/tdlib* /
diff --git a/third-party/td/td/example/android/README.md b/third-party/td/td/example/android/README.md
deleted file mode 100644
index 102e9dcc71..0000000000
--- a/third-party/td/td/example/android/README.md
+++ /dev/null
@@ -1,32 +0,0 @@
-# TDLib Android example
-
-This is an example of building `TDLib` for Android.
-You need a Bash shell on Linux, macOS, or Windows with some common tools, a C++ compiler, JDK, PHP, perl, and gperf pre-installed.
-
-## Building TDLib for Android
-
-* Run the script `./check-environment.sh` to check that you have all required Unix tools and Java utilities. If the script exits with an error message, install the missing tool.
-* Run the script `./fetch-sdk.sh` to download Android SDK to a local directory.
-* Run the script `./build-openssl.sh` to download and build OpenSSL for Android.
-* Run the script `./build-tdlib.sh` to build TDLib for Android.
-* The built libraries are now located in the `tdlib/libs` directory. If [Java](https://github.com/tdlib/td#using-java) interface was built, then corresponding Java code is located in the `tdlib/java` directory, and standalone Java documentation can be found in the `tdlib/javadoc` directory. You can also use archives `tdlib/tdlib.zip` and `tdlib/tdlib-debug.zip`, which contain all aforementioned data.
-
-If you already have installed Android SDK and NDK, you can skip the second step and specify existing Android SDK root path and Android NDK version as the first and the second parameters to the subsequent scripts. Make sure that the SDK includes android-34 platform and CMake 3.22.1.
-
-If you already have prebuilt OpenSSL, you can skip the third step and specify path to the prebuild OpenSSL as the third parameter to the script `./build-tdlib.sh`.
-
-If you want to update TDLib to a newer version, you need to run only the script `./build-tdlib.sh`.
-
-You can specify different OpenSSL version as the fourth parameter to the script `./build-openssl.sh`. By default OpenSSL 1.1.1 is used because of much smaller binary footprint and better performance than newer OpenSSL versions.
-
-You can build shared OpenSSL libraries instead of static ones by passing any non-empty string as the fifth parameter to the script `./build-openssl.sh`. This can reduce total application size if you have a lot of other code that uses OpenSSL and want it to use the same shared library.
-
-You can build TDLib against shared standard C++ library by specifying "c++_shared" as the fourth parameter to the script `./build-tdlib.sh`. This can reduce total application size if you have a lot of other C++ code and want it to use the same shared library.
-
-You can also build TDLib with [JSON interface](https://github.com/tdlib/td#using-json) instead of [Java](https://github.com/tdlib/td#using-java) interface by passing "JSON" as the fifth parameter to the script `./build-tdlib.sh`.
-
-You can also build TDLib with [JSON interface](https://github.com/tdlib/td#using-json) that can be called from Java by passing "JSONJava" as the fifth parameter to the script `./build-tdlib.sh`.
-
-You can pass an empty string instead of any script parameter to use its default value. For example, you can use the command `./build-tdlib.sh '' '' '' '' 'JSON'` to build TDLib with [JSON interface](https://github.com/tdlib/td#using-json) using default values for other parameters.
-
-Alternatively, you can use Docker to build TDLib for Android. Use `docker build --output tdlib .` to build the latest TDLib commit from Github, or `docker build --build-arg COMMIT_HASH=<commit-hash> --output tdlib .` to build specific commit. The output archives will be placed in the directory "tdlib" as specified. Additionally, you can specify build arguments "TDLIB_INTERFACE", "ANDROID_NDK_VERSION", "OPENSSL_VERSION", "BUILD_SHARED_OPENSSL_LIBS", and "ANDROID_STL" to the provided Dockerfile. For example, use `docker build --build-arg TDLIB_INTERFACE=JSON --output tdlib .` to build the latest TDLib with JSON interface.
diff --git a/third-party/td/td/example/android/build-openssl.sh b/third-party/td/td/example/android/build-openssl.sh
deleted file mode 100755
index 93a2b37464..0000000000
--- a/third-party/td/td/example/android/build-openssl.sh
+++ /dev/null
@@ -1,93 +0,0 @@
-#!/usr/bin/env bash
-
-ANDROID_SDK_ROOT=${1:-SDK}
-ANDROID_NDK_VERSION=${2:-23.2.8568313}
-OPENSSL_INSTALL_DIR=${3:-third-party/openssl}
-OPENSSL_VERSION=${4:-OpenSSL_1_1_1w} # openssl-3.3.0
-BUILD_SHARED_LIBS=$5
-
-if [ ! -d "$ANDROID_SDK_ROOT" ] ; then
-  echo "Error: directory \"$ANDROID_SDK_ROOT\" doesn't exist. Run ./fetch-sdk.sh first, or provide a valid path to Android SDK."
-  exit 1
-fi
-
-if [ -e "$OPENSSL_INSTALL_DIR" ] ; then
-  echo "Error: file or directory \"$OPENSSL_INSTALL_DIR\" already exists. Delete it manually to proceed."
-  exit 1
-fi
-
-source ./check-environment.sh || exit 1
-
-if [[ "$OS_NAME" == "win" ]] && [[ "$BUILD_SHARED_LIBS" ]] ; then
-  echo "Error: OpenSSL shared libraries can't be built on Windows because of 'The command line is too long.' error during build. You can run the script in WSL instead."
-  exit 1
-fi
-
-mkdir -p $OPENSSL_INSTALL_DIR || exit 1
-
-ANDROID_SDK_ROOT="$(cd "$(dirname -- "$ANDROID_SDK_ROOT")" >/dev/null; pwd -P)/$(basename -- "$ANDROID_SDK_ROOT")"
-OPENSSL_INSTALL_DIR="$(cd "$(dirname -- "$OPENSSL_INSTALL_DIR")" >/dev/null; pwd -P)/$(basename -- "$OPENSSL_INSTALL_DIR")"
-
-cd $(dirname $0)
-
-echo "Downloading OpenSSL sources..."
-rm -f $OPENSSL_VERSION.tar.gz || exit 1
-$WGET https://github.com/openssl/openssl/archive/refs/tags/$OPENSSL_VERSION.tar.gz || exit 1
-rm -rf ./openssl-$OPENSSL_VERSION || exit 1
-tar xzf $OPENSSL_VERSION.tar.gz || exit 1
-rm $OPENSSL_VERSION.tar.gz || exit 1
-cd openssl-$OPENSSL_VERSION
-
-export ANDROID_NDK_ROOT=$ANDROID_SDK_ROOT/ndk/$ANDROID_NDK_VERSION  # for OpenSSL 3.*.*
-export ANDROID_NDK_HOME=$ANDROID_NDK_ROOT                           # for OpenSSL 1.1.1
-PATH=$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/$HOST_ARCH/bin:$PATH
-
-if ! clang --help >/dev/null 2>&1 ; then
-  echo "Error: failed to run clang from Android NDK."
-  if [[ "$OS_NAME" == "linux" ]] ; then
-    echo "Prebuilt Android NDK binaries are linked against glibc, so glibc must be installed."
-  fi
-  exit 1
-fi
-
-ANDROID_API32=16
-ANDROID_API64=21
-if [[ ${ANDROID_NDK_VERSION%%.*} -ge 24 ]] ; then
-  ANDROID_API32=19
-fi
-if [[ ${ANDROID_NDK_VERSION%%.*} -ge 26 ]] ; then
-  ANDROID_API32=21
-fi
-
-SHARED_BUILD_OPTION=$([ "$BUILD_SHARED_LIBS" ] && echo "shared" || echo "no-shared")
-
-for ABI in arm64-v8a armeabi-v7a x86_64 x86 ; do
-  if [[ $ABI == "x86" ]] ; then
-    ./Configure android-x86 ${SHARED_BUILD_OPTION} -U__ANDROID_API__ -D__ANDROID_API__=$ANDROID_API32 || exit 1
-  elif [[ $ABI == "x86_64" ]] ; then
-    ./Configure android-x86_64 ${SHARED_BUILD_OPTION} -U__ANDROID_API__ -D__ANDROID_API__=$ANDROID_API64 || exit 1
-  elif [[ $ABI == "armeabi-v7a" ]] ; then
-    ./Configure android-arm ${SHARED_BUILD_OPTION} -U__ANDROID_API__ -D__ANDROID_API__=$ANDROID_API32 -D__ARM_MAX_ARCH__=8 || exit 1
-  elif [[ $ABI == "arm64-v8a" ]] ; then
-    ./Configure android-arm64 ${SHARED_BUILD_OPTION} -U__ANDROID_API__ -D__ANDROID_API__=$ANDROID_API64 || exit 1
-  fi
-
-  sed -i.bak 's/-O3/-O3 -ffunction-sections -fdata-sections/g' Makefile || exit 1
-
-  make depend -s || exit 1
-  make -j4 -s || exit 1
-
-  mkdir -p $OPENSSL_INSTALL_DIR/$ABI/lib/ || exit 1
-  if [ "$BUILD_SHARED_LIBS" ] ; then
-    cp libcrypto.so libssl.so $OPENSSL_INSTALL_DIR/$ABI/lib/ || exit 1
-  else
-    cp libcrypto.a libssl.a $OPENSSL_INSTALL_DIR/$ABI/lib/ || exit 1
-  fi
-  cp -r include $OPENSSL_INSTALL_DIR/$ABI/ || exit 1
-
-  make distclean || exit 1
-done
-
-cd ..
-
-rm -rf ./openssl-$OPENSSL_VERSION || exit 1
diff --git a/third-party/td/td/example/android/build-tdlib.sh b/third-party/td/td/example/android/build-tdlib.sh
deleted file mode 100755
index f62ba1ac4b..0000000000
--- a/third-party/td/td/example/android/build-tdlib.sh
+++ /dev/null
@@ -1,117 +0,0 @@
-#!/usr/bin/env bash
-
-ANDROID_SDK_ROOT=${1:-SDK}
-ANDROID_NDK_VERSION=${2:-23.2.8568313}
-OPENSSL_INSTALL_DIR=${3:-third-party/openssl}
-ANDROID_STL=${4:-c++_static}
-TDLIB_INTERFACE=${5:-Java}
-
-if [ "$ANDROID_STL" != "c++_static" ] && [ "$ANDROID_STL" != "c++_shared" ] ; then
-  echo 'Error: ANDROID_STL must be either "c++_static" or "c++_shared".'
-  exit 1
-fi
-
-if [ "$TDLIB_INTERFACE" != "Java" ] && [ "$TDLIB_INTERFACE" != "JSON" ] && [ "$TDLIB_INTERFACE" != "JSONJava" ] ; then
-  echo 'Error: TDLIB_INTERFACE must be either "Java", "JSON", or "JSONJava".'
-  exit 1
-fi
-
-source ./check-environment.sh || exit 1
-
-if [ ! -d "$ANDROID_SDK_ROOT" ] ; then
-  echo "Error: directory \"$ANDROID_SDK_ROOT\" doesn't exist. Run ./fetch-sdk.sh first, or provide a valid path to Android SDK."
-  exit 1
-fi
-
-if [ ! -d "$OPENSSL_INSTALL_DIR" ] ; then
-  echo "Error: directory \"$OPENSSL_INSTALL_DIR\" doesn't exists. Run ./build-openssl.sh first."
-  exit 1
-fi
-
-ANDROID_SDK_ROOT="$(cd "$(dirname -- "$ANDROID_SDK_ROOT")" >/dev/null; pwd -P)/$(basename -- "$ANDROID_SDK_ROOT")"
-ANDROID_NDK_ROOT="$ANDROID_SDK_ROOT/ndk/$ANDROID_NDK_VERSION"
-OPENSSL_INSTALL_DIR="$(cd "$(dirname -- "$OPENSSL_INSTALL_DIR")" >/dev/null; pwd -P)/$(basename -- "$OPENSSL_INSTALL_DIR")"
-PATH=$ANDROID_SDK_ROOT/cmake/3.22.1/bin:$PATH
-TDLIB_INTERFACE_OPTION=$([ "$TDLIB_INTERFACE" == "JSON" ] && echo "-DTD_ANDROID_JSON=ON" || [ "$TDLIB_INTERFACE" == "JSONJava" ] && echo "-DTD_ANDROID_JSON_JAVA=ON" || echo "")
-
-cd $(dirname $0)
-
-echo "Generating TDLib source files..."
-mkdir -p build-native-$TDLIB_INTERFACE || exit 1
-cd build-native-$TDLIB_INTERFACE
-cmake $TDLIB_INTERFACE_OPTION -DTD_GENERATE_SOURCE_FILES=ON .. || exit 1
-cmake --build . || exit 1
-cd ..
-
-rm -rf tdlib || exit 1
-
-if [ "$TDLIB_INTERFACE" == "Java" ] ; then
-  echo "Downloading annotation Java package..."
-  rm -f android.jar annotation-1.4.0.jar || exit 1
-  $WGET https://maven.google.com/androidx/annotation/annotation/1.4.0/annotation-1.4.0.jar || exit 1
-
-  echo "Generating Java source files..."
-  cmake --build build-native-$TDLIB_INTERFACE --target tl_generate_java || exit 1
-  php AddIntDef.php org/drinkless/tdlib/TdApi.java || exit 1
-  mkdir -p tdlib/java/org/drinkless/tdlib || exit 1
-  cp -p {..,tdlib}/java/org/drinkless/tdlib/Client.java || exit 1
-  mv {,tdlib/java/}org/drinkless/tdlib/TdApi.java || exit 1
-  rm -rf org || exit 1
-
-  echo "Generating Javadoc documentation..."
-  cp "$ANDROID_SDK_ROOT/platforms/android-34/android.jar" . || exit 1
-  JAVADOC_SEPARATOR=$([ "$OS_NAME" == "win" ] && echo ";" || echo ":")
-  javadoc -d tdlib/javadoc -encoding UTF-8 -charset UTF-8 -classpath "android.jar${JAVADOC_SEPARATOR}annotation-1.4.0.jar" -quiet -sourcepath tdlib/java org.drinkless.tdlib || exit 1
-  rm android.jar annotation-1.4.0.jar || exit 1
-fi
-if [ "$TDLIB_INTERFACE" == "JSONJava" ] ; then
-  mkdir -p tdlib/java/org/drinkless/tdlib || exit 1
-  cp -p {..,tdlib}/java/org/drinkless/tdlib/JsonClient.java || exit 1
-fi
-
-echo "Building TDLib..."
-for ABI in arm64-v8a armeabi-v7a x86_64 x86 ; do
-  mkdir -p tdlib/libs/$ABI/ || exit 1
-
-  mkdir -p build-$ABI-$TDLIB_INTERFACE || exit 1
-  cd build-$ABI-$TDLIB_INTERFACE
-  cmake -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_ROOT/build/cmake/android.toolchain.cmake" -DOPENSSL_ROOT_DIR="$OPENSSL_INSTALL_DIR/$ABI" -DCMAKE_BUILD_TYPE=RelWithDebInfo -GNinja -DANDROID_ABI=$ABI -DANDROID_STL=$ANDROID_STL -DANDROID_PLATFORM=android-16 $TDLIB_INTERFACE_OPTION .. || exit 1
-  if [ "$TDLIB_INTERFACE" == "Java" ] || [ "$TDLIB_INTERFACE" == "JSONJava" ] ; then
-    cmake --build . --target tdjni || exit 1
-    cp -p libtd*.so* ../tdlib/libs/$ABI/ || exit 1
-  fi
-  if [ "$TDLIB_INTERFACE" == "JSON" ] ; then
-    cmake --build . --target tdjson || exit 1
-    cp -p td/libtdjson.so ../tdlib/libs/$ABI/libtdjson.so.debug || exit 1
-    "$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/$HOST_ARCH/bin/llvm-strip" --strip-debug --strip-unneeded ../tdlib/libs/$ABI/libtdjson.so.debug -o ../tdlib/libs/$ABI/libtdjson.so || exit 1
-  fi
-  cd ..
-
-  if [[ "$ANDROID_STL" == "c++_shared" ]] ; then
-    if [[ "$ABI" == "arm64-v8a" ]] ; then
-      FULL_ABI="aarch64-linux-android"
-    elif [[ "$ABI" == "armeabi-v7a" ]] ; then
-      FULL_ABI="arm-linux-androideabi"
-    elif [[ "$ABI" == "x86_64" ]] ; then
-      FULL_ABI="x86_64-linux-android"
-    elif [[ "$ABI" == "x86" ]] ; then
-      FULL_ABI="i686-linux-android"
-    fi
-    cp "$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/$HOST_ARCH/sysroot/usr/lib/$FULL_ABI/libc++_shared.so" tdlib/libs/$ABI/ || exit 1
-    "$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/$HOST_ARCH/bin/llvm-strip" tdlib/libs/$ABI/libc++_shared.so || exit 1
-  fi
-  if [ -e "$OPENSSL_INSTALL_DIR/$ABI/lib/libcrypto.so" ] ; then
-    cp "$OPENSSL_INSTALL_DIR/$ABI/lib/libcrypto.so" "$OPENSSL_INSTALL_DIR/$ABI/lib/libssl.so" tdlib/libs/$ABI/ || exit 1
-    "$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/$HOST_ARCH/bin/llvm-strip" tdlib/libs/$ABI/libcrypto.so || exit 1
-    "$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/$HOST_ARCH/bin/llvm-strip" tdlib/libs/$ABI/libssl.so || exit 1
-  fi
-done
-
-echo "Compressing..."
-rm -f tdlib.zip tdlib-debug.zip || exit 1
-jar -cMf tdlib-debug.zip tdlib || exit 1
-rm tdlib/libs/*/*.debug || exit 1
-jar -cMf tdlib.zip tdlib || exit 1
-mv tdlib.zip tdlib-debug.zip tdlib || exit 1
-
-echo "Done."
diff --git a/third-party/td/td/example/android/check-environment.sh b/third-party/td/td/example/android/check-environment.sh
deleted file mode 100755
index 7e63287d1a..0000000000
--- a/third-party/td/td/example/android/check-environment.sh
+++ /dev/null
@@ -1,51 +0,0 @@
-#!/usr/bin/env bash
-
-# The script checks that all needed tools are installed and sets OS_NAME, HOST_ARCH, and WGET variables
-
-if [[ "$OSTYPE" == "linux"* ]] ; then
-  OS_NAME="linux"
-  HOST_ARCH="linux-x86_64"
-elif [[ "$OSTYPE" == "darwin"* ]] ; then
-  OS_NAME="mac"
-  HOST_ARCH="darwin-x86_64"
-elif [[ "$OSTYPE" == "msys" ]] ; then
-  OS_NAME="win"
-  HOST_ARCH="windows-x86_64"
-else
-  echo "Error: this script supports only Bash shell on Linux, macOS, or Windows."
-  exit 1
-fi
-
-if which wget >/dev/null 2>&1 ; then
-  WGET="wget -q"
-elif which curl >/dev/null 2>&1 ; then
-  WGET="curl -sfLO"
-else
-  echo "Error: this script requires either curl or wget tool installed."
-  exit 1
-fi
-
-for TOOL_NAME in gperf jar java javadoc make perl php sed tar yes unzip ; do
-  if ! which "$TOOL_NAME" >/dev/null 2>&1 ; then
-    echo "Error: this script requires $TOOL_NAME tool installed."
-    exit 1
-  fi
-done
-
-if [[ $(which make) = *" "* ]] ; then
-  echo "Error: OpenSSL expects that full path to make tool doesn't contain spaces. Move it to some other place."
-  exit 1
-fi
-
-if ! perl -MExtUtils::MakeMaker -MLocale::Maketext::Simple -MPod::Usage -e '' >/dev/null 2>&1 ; then
-  echo "Error: Perl installation is broken."
-  if [[ "$OSTYPE" == "msys" ]] ; then
-    echo "For Git Bash you need to manually copy ExtUtils, Locale and Pod modules to /usr/share/perl5/core_perl from any compatible Perl installation."
-  fi
-  exit 1
-fi
-
-if ! java --help >/dev/null 2>&1 ; then
-  echo "Error: Java installation is broken. Install JDK from https://www.oracle.com/java/technologies/downloads/ or via the package manager."
-  exit 1
-fi
diff --git a/third-party/td/td/example/android/fetch-sdk.sh b/third-party/td/td/example/android/fetch-sdk.sh
deleted file mode 100755
index e36495747a..0000000000
--- a/third-party/td/td/example/android/fetch-sdk.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/usr/bin/env bash
-
-ANDROID_SDK_ROOT=${1:-SDK}
-ANDROID_NDK_VERSION=${2:-23.2.8568313}
-
-if [ -e "$ANDROID_SDK_ROOT" ] ; then
-  echo "Error: file or directory \"$ANDROID_SDK_ROOT\" already exists. Delete it manually to proceed."
-  exit 1
-fi
-
-source ./check-environment.sh || exit 1
-
-SDKMANAGER="./sdkmanager"
-if [[ "$OS_NAME" == "win" ]] ; then
-  SDKMANAGER="./sdkmanager.bat"
-fi
-
-echo "Downloading SDK Manager..."
-mkdir -p "$ANDROID_SDK_ROOT" || exit 1
-cd "$ANDROID_SDK_ROOT" || exit 1
-$WGET "https://dl.google.com/android/repository/commandlinetools-$OS_NAME-11076708_latest.zip" || exit 1
-mkdir -p cmdline-tools || exit 1
-unzip -qq "commandlinetools-$OS_NAME-11076708_latest.zip" -d cmdline-tools || exit 1
-rm "commandlinetools-$OS_NAME-11076708_latest.zip" || exit 1
-mv cmdline-tools/* cmdline-tools/latest/ || exit 1
-
-echo "Installing required SDK tools..."
-cd cmdline-tools/latest/bin/ || exit 1
-yes | $SDKMANAGER --licenses >/dev/null || exit 1
-$SDKMANAGER --install "ndk;$ANDROID_NDK_VERSION" "cmake;3.22.1" "build-tools;34.0.0" "platforms;android-34" > /dev/null || exit 1
diff --git a/third-party/td/td/example/cpp/.gitignore b/third-party/td/td/example/cpp/.gitignore
deleted file mode 100644
index b64845d43e..0000000000
--- a/third-party/td/td/example/cpp/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/td/
diff --git a/third-party/td/td/example/cpp/CMakeLists.txt b/third-party/td/td/example/cpp/CMakeLists.txt
deleted file mode 100644
index 54099de95b..0000000000
--- a/third-party/td/td/example/cpp/CMakeLists.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
-
-project(TdExample VERSION 1.0 LANGUAGES CXX)
-
-find_package(Td 1.8.46 REQUIRED)
-
-add_executable(tdjson_example tdjson_example.cpp)
-target_link_libraries(tdjson_example PRIVATE Td::TdJson)
-set_property(TARGET tdjson_example PROPERTY CXX_STANDARD 11)
-
-add_executable(td_example td_example.cpp)
-target_link_libraries(td_example PRIVATE Td::TdStatic)
-set_property(TARGET td_example PROPERTY CXX_STANDARD 14)
diff --git a/third-party/td/td/example/cpp/README.md b/third-party/td/td/example/cpp/README.md
deleted file mode 100644
index c8ee34d4fa..0000000000
--- a/third-party/td/td/example/cpp/README.md
+++ /dev/null
@@ -1,24 +0,0 @@
-# TDLib C++ basic usage examples
-
-TDLib should be prebuilt and installed to local subdirectory `td/`:
-```
-cd <path to TDLib sources>
-mkdir build
-cd build
-cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX:PATH=../example/cpp/td ..
-cmake --build . --target install
-```
-Also, see [building](https://github.com/tdlib/td#building) for additional details on TDLib building.
-
-After this you can build the examples:
-```
-cd <path to TDLib sources>/example/cpp
-mkdir build
-cd build
-cmake -DCMAKE_BUILD_TYPE=Release -DTd_DIR=<full path to TDLib sources>/example/cpp/td/lib/cmake/Td ..
-cmake --build .
-```
-
-Documentation for all available classes and methods can be found at https://core.telegram.org/tdlib/docs.
-
-To run the examples you may need to manually copy needed shared libraries from `td/bin` to a directory containing built binaries.
diff --git a/third-party/td/td/example/cpp/td_example.cpp b/third-party/td/td/example/cpp/td_example.cpp
deleted file mode 100644
index bae735fc69..0000000000
--- a/third-party/td/td/example/cpp/td_example.cpp
+++ /dev/null
@@ -1,337 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include <td/telegram/Client.h>
-#include <td/telegram/td_api.h>
-#include <td/telegram/td_api.hpp>
-
-#include <cstdint>
-#include <functional>
-#include <iostream>
-#include <map>
-#include <memory>
-#include <sstream>
-#include <string>
-#include <vector>
-
-// Simple single-threaded example of TDLib usage.
-// Real world programs should use separate thread for the user input.
-// Example includes user authentication, receiving updates, getting chat list and sending text messages.
-
-// overloaded
-namespace detail {
-template <class... Fs>
-struct overload;
-
-template <class F>
-struct overload<F> : public F {
-  explicit overload(F f) : F(f) {
-  }
-};
-template <class F, class... Fs>
-struct overload<F, Fs...>
-    : public overload<F>
-    , public overload<Fs...> {
-  overload(F f, Fs... fs) : overload<F>(f), overload<Fs...>(fs...) {
-  }
-  using overload<F>::operator();
-  using overload<Fs...>::operator();
-};
-}  // namespace detail
-
-template <class... F>
-auto overloaded(F... f) {
-  return detail::overload<F...>(f...);
-}
-
-namespace td_api = td::td_api;
-
-class TdExample {
- public:
-  TdExample() {
-    td::ClientManager::execute(td_api::make_object<td_api::setLogVerbosityLevel>(1));
-    client_manager_ = std::make_unique<td::ClientManager>();
-    client_id_ = client_manager_->create_client_id();
-    send_query(td_api::make_object<td_api::getOption>("version"), {});
-  }
-
-  void loop() {
-    while (true) {
-      if (need_restart_) {
-        restart();
-      } else if (!are_authorized_) {
-        process_response(client_manager_->receive(10));
-      } else {
-        std::cout << "Enter action [q] quit [u] check for updates and request results [c] show chats [m <chat_id> "
-                     "<text>] send message [me] show self [l] logout: "
-                  << std::endl;
-        std::string line;
-        std::getline(std::cin, line);
-        std::istringstream ss(line);
-        std::string action;
-        if (!(ss >> action)) {
-          continue;
-        }
-        if (action == "q") {
-          return;
-        }
-        if (action == "u") {
-          std::cout << "Checking for updates..." << std::endl;
-          while (true) {
-            auto response = client_manager_->receive(0);
-            if (response.object) {
-              process_response(std::move(response));
-            } else {
-              break;
-            }
-          }
-        } else if (action == "close") {
-          std::cout << "Closing..." << std::endl;
-          send_query(td_api::make_object<td_api::close>(), {});
-        } else if (action == "me") {
-          send_query(td_api::make_object<td_api::getMe>(),
-                     [this](Object object) { std::cout << to_string(object) << std::endl; });
-        } else if (action == "l") {
-          std::cout << "Logging out..." << std::endl;
-          send_query(td_api::make_object<td_api::logOut>(), {});
-        } else if (action == "m") {
-          std::int64_t chat_id;
-          ss >> chat_id;
-          ss.get();
-          std::string text;
-          std::getline(ss, text);
-
-          std::cout << "Sending message to chat " << chat_id << "..." << std::endl;
-          auto send_message = td_api::make_object<td_api::sendMessage>();
-          send_message->chat_id_ = chat_id;
-          auto message_content = td_api::make_object<td_api::inputMessageText>();
-          message_content->text_ = td_api::make_object<td_api::formattedText>();
-          message_content->text_->text_ = std::move(text);
-          send_message->input_message_content_ = std::move(message_content);
-
-          send_query(std::move(send_message), {});
-        } else if (action == "c") {
-          std::cout << "Loading chat list..." << std::endl;
-          send_query(td_api::make_object<td_api::getChats>(nullptr, 20), [this](Object object) {
-            if (object->get_id() == td_api::error::ID) {
-              return;
-            }
-            auto chats = td::move_tl_object_as<td_api::chats>(object);
-            for (auto chat_id : chats->chat_ids_) {
-              std::cout << "[chat_id:" << chat_id << "] [title:" << chat_title_[chat_id] << "]" << std::endl;
-            }
-          });
-        }
-      }
-    }
-  }
-
- private:
-  using Object = td_api::object_ptr<td_api::Object>;
-  std::unique_ptr<td::ClientManager> client_manager_;
-  std::int32_t client_id_{0};
-
-  td_api::object_ptr<td_api::AuthorizationState> authorization_state_;
-  bool are_authorized_{false};
-  bool need_restart_{false};
-  std::uint64_t current_query_id_{0};
-  std::uint64_t authentication_query_id_{0};
-
-  std::map<std::uint64_t, std::function<void(Object)>> handlers_;
-
-  std::map<std::int64_t, td_api::object_ptr<td_api::user>> users_;
-
-  std::map<std::int64_t, std::string> chat_title_;
-
-  void restart() {
-    client_manager_.reset();
-    *this = TdExample();
-  }
-
-  void send_query(td_api::object_ptr<td_api::Function> f, std::function<void(Object)> handler) {
-    auto query_id = next_query_id();
-    if (handler) {
-      handlers_.emplace(query_id, std::move(handler));
-    }
-    client_manager_->send(client_id_, query_id, std::move(f));
-  }
-
-  void process_response(td::ClientManager::Response response) {
-    if (!response.object) {
-      return;
-    }
-    //std::cout << response.request_id << " " << to_string(response.object) << std::endl;
-    if (response.request_id == 0) {
-      return process_update(std::move(response.object));
-    }
-    auto it = handlers_.find(response.request_id);
-    if (it != handlers_.end()) {
-      it->second(std::move(response.object));
-      handlers_.erase(it);
-    }
-  }
-
-  std::string get_user_name(std::int64_t user_id) const {
-    auto it = users_.find(user_id);
-    if (it == users_.end()) {
-      return "unknown user";
-    }
-    return it->second->first_name_ + " " + it->second->last_name_;
-  }
-
-  std::string get_chat_title(std::int64_t chat_id) const {
-    auto it = chat_title_.find(chat_id);
-    if (it == chat_title_.end()) {
-      return "unknown chat";
-    }
-    return it->second;
-  }
-
-  void process_update(td_api::object_ptr<td_api::Object> update) {
-    td_api::downcast_call(
-        *update, overloaded(
-                     [this](td_api::updateAuthorizationState &update_authorization_state) {
-                       authorization_state_ = std::move(update_authorization_state.authorization_state_);
-                       on_authorization_state_update();
-                     },
-                     [this](td_api::updateNewChat &update_new_chat) {
-                       chat_title_[update_new_chat.chat_->id_] = update_new_chat.chat_->title_;
-                     },
-                     [this](td_api::updateChatTitle &update_chat_title) {
-                       chat_title_[update_chat_title.chat_id_] = update_chat_title.title_;
-                     },
-                     [this](td_api::updateUser &update_user) {
-                       auto user_id = update_user.user_->id_;
-                       users_[user_id] = std::move(update_user.user_);
-                     },
-                     [this](td_api::updateNewMessage &update_new_message) {
-                       auto chat_id = update_new_message.message_->chat_id_;
-                       std::string sender_name;
-                       td_api::downcast_call(*update_new_message.message_->sender_id_,
-                                             overloaded(
-                                                 [this, &sender_name](td_api::messageSenderUser &user) {
-                                                   sender_name = get_user_name(user.user_id_);
-                                                 },
-                                                 [this, &sender_name](td_api::messageSenderChat &chat) {
-                                                   sender_name = get_chat_title(chat.chat_id_);
-                                                 }));
-                       std::string text;
-                       if (update_new_message.message_->content_->get_id() == td_api::messageText::ID) {
-                         text = static_cast<td_api::messageText &>(*update_new_message.message_->content_).text_->text_;
-                       }
-                       std::cout << "Receive message: [chat_id:" << chat_id << "] [from:" << sender_name << "] ["
-                                 << text << "]" << std::endl;
-                     },
-                     [](auto &update) {}));
-  }
-
-  auto create_authentication_query_handler() {
-    return [this, id = authentication_query_id_](Object object) {
-      if (id == authentication_query_id_) {
-        check_authentication_error(std::move(object));
-      }
-    };
-  }
-
-  void on_authorization_state_update() {
-    authentication_query_id_++;
-    td_api::downcast_call(*authorization_state_,
-                          overloaded(
-                              [this](td_api::authorizationStateReady &) {
-                                are_authorized_ = true;
-                                std::cout << "Authorization is completed" << std::endl;
-                              },
-                              [this](td_api::authorizationStateLoggingOut &) {
-                                are_authorized_ = false;
-                                std::cout << "Logging out" << std::endl;
-                              },
-                              [this](td_api::authorizationStateClosing &) { std::cout << "Closing" << std::endl; },
-                              [this](td_api::authorizationStateClosed &) {
-                                are_authorized_ = false;
-                                need_restart_ = true;
-                                std::cout << "Terminated" << std::endl;
-                              },
-                              [this](td_api::authorizationStateWaitPhoneNumber &) {
-                                std::cout << "Enter phone number: " << std::flush;
-                                std::string phone_number;
-                                std::cin >> phone_number;
-                                send_query(
-                                    td_api::make_object<td_api::setAuthenticationPhoneNumber>(phone_number, nullptr),
-                                    create_authentication_query_handler());
-                              },
-                              [this](td_api::authorizationStateWaitEmailAddress &) {
-                                std::cout << "Enter email address: " << std::flush;
-                                std::string email_address;
-                                std::cin >> email_address;
-                                send_query(td_api::make_object<td_api::setAuthenticationEmailAddress>(email_address),
-                                           create_authentication_query_handler());
-                              },
-                              [this](td_api::authorizationStateWaitEmailCode &) {
-                                std::cout << "Enter email authentication code: " << std::flush;
-                                std::string code;
-                                std::cin >> code;
-                                send_query(td_api::make_object<td_api::checkAuthenticationEmailCode>(
-                                               td_api::make_object<td_api::emailAddressAuthenticationCode>(code)),
-                                           create_authentication_query_handler());
-                              },
-                              [this](td_api::authorizationStateWaitCode &) {
-                                std::cout << "Enter authentication code: " << std::flush;
-                                std::string code;
-                                std::cin >> code;
-                                send_query(td_api::make_object<td_api::checkAuthenticationCode>(code),
-                                           create_authentication_query_handler());
-                              },
-                              [this](td_api::authorizationStateWaitRegistration &) {
-                                std::string first_name;
-                                std::string last_name;
-                                std::cout << "Enter your first name: " << std::flush;
-                                std::cin >> first_name;
-                                std::cout << "Enter your last name: " << std::flush;
-                                std::cin >> last_name;
-                                send_query(td_api::make_object<td_api::registerUser>(first_name, last_name, false),
-                                           create_authentication_query_handler());
-                              },
-                              [this](td_api::authorizationStateWaitPassword &) {
-                                std::cout << "Enter authentication password: " << std::flush;
-                                std::string password;
-                                std::getline(std::cin, password);
-                                send_query(td_api::make_object<td_api::checkAuthenticationPassword>(password),
-                                           create_authentication_query_handler());
-                              },
-                              [this](td_api::authorizationStateWaitOtherDeviceConfirmation &state) {
-                                std::cout << "Confirm this login link on another device: " << state.link_ << std::endl;
-                              },
-                              [this](td_api::authorizationStateWaitTdlibParameters &) {
-                                auto request = td_api::make_object<td_api::setTdlibParameters>();
-                                request->database_directory_ = "tdlib";
-                                request->use_message_database_ = true;
-                                request->use_secret_chats_ = true;
-                                request->api_id_ = 94575;
-                                request->api_hash_ = "a3406de8d171bb422bb6ddf3bbd800e2";
-                                request->system_language_code_ = "en";
-                                request->device_model_ = "Desktop";
-                                request->application_version_ = "1.0";
-                                send_query(std::move(request), create_authentication_query_handler());
-                              }));
-  }
-
-  void check_authentication_error(Object object) {
-    if (object->get_id() == td_api::error::ID) {
-      auto error = td::move_tl_object_as<td_api::error>(object);
-      std::cout << "Error: " << to_string(error) << std::flush;
-      on_authorization_state_update();
-    }
-  }
-
-  std::uint64_t next_query_id() {
-    return ++current_query_id_;
-  }
-};
-
-int main() {
-  TdExample example;
-  example.loop();
-}
diff --git a/third-party/td/td/example/cpp/tdjson_example.cpp b/third-party/td/td/example/cpp/tdjson_example.cpp
deleted file mode 100644
index 3c67be6a00..0000000000
--- a/third-party/td/td/example/cpp/tdjson_example.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include <iostream>
-#include <td/telegram/td_json_client.h>
-
-// Basic example of TDLib JSON interface usage.
-// Native interface should be preferred instead in C++, so here is only an example of
-// the main event cycle, which should be essentially the same for all languages.
-
-int main() {
-  // disable TDLib logging
-  td_execute("{\"@type\":\"setLogVerbosityLevel\", \"new_verbosity_level\":0}");
-
-  int client_id = td_create_client_id();
-  // somehow share the client_id with other threads, which will be able to send requests via td_send
-
-  // start the client by sending request to it
-  td_send(client_id, "{\"@type\":\"getOption\", \"name\":\"version\"}");
-
-  const bool test_incorrect_queries = false;
-  if (test_incorrect_queries) {
-    td_execute("{\"@type\":\"setLogVerbosityLevel\", \"new_verbosity_level\":1}");
-    td_execute("");
-    td_execute("test");
-    td_execute("\"test\"");
-    td_execute("{\"@type\":\"test\", \"@extra\":1}");
-
-    td_send(client_id, "{\"@type\":\"getFileMimeType\"}");
-    td_send(client_id, "{\"@type\":\"getFileMimeType\", \"@extra\":1}");
-    td_send(client_id, "{\"@type\":\"getFileMimeType\", \"@extra\":null}");
-    td_send(client_id, "{\"@type\":\"test\"}");
-    td_send(client_id, "[]");
-    td_send(client_id, "{\"@type\":\"test\", \"@extra\":1}");
-    td_send(client_id, "{\"@type\":\"sendMessage\", \"chat_id\":true, \"@extra\":1}");
-    td_send(client_id, "test");
-  }
-
-  const double WAIT_TIMEOUT = 10.0;  // seconds
-  while (true) {
-    const char *result = td_receive(WAIT_TIMEOUT);
-    if (result != nullptr) {
-      // parse the result as a JSON object and process it as an incoming update or an answer to a previously sent request
-
-      // if (result is UpdateAuthorizationState with authorizationStateClosed) {
-      //   break;
-      // }
-
-      std::cout << result << std::endl;
-    }
-  }
-}
diff --git a/third-party/td/td/example/csharp/.gitignore b/third-party/td/td/example/csharp/.gitignore
deleted file mode 100644
index 9ce7d06ac4..0000000000
--- a/third-party/td/td/example/csharp/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-/.vs/
-/bin/
-/obj/
-/project.lock.json
-/TdExample.csproj.user
diff --git a/third-party/td/td/example/csharp/README.md b/third-party/td/td/example/csharp/README.md
deleted file mode 100644
index 08f3dbcc1a..0000000000
--- a/third-party/td/td/example/csharp/README.md
+++ /dev/null
@@ -1,40 +0,0 @@
-# TDLib C# example
-
-This is an example of building TDLib with `C++/CLI` support and an example of TDLib usage from C#.
-
-## Building TDLib
-
-* Download and install Microsoft Visual Studio 2015 or later.
-* Download and install [CMake](https://cmake.org/download/); choose "Add CMake to the system PATH" option while installing.
-* Install `gperf`, `zlib`, and `openssl` using [vcpkg](https://github.com/Microsoft/vcpkg#quick-start):
-```
-git clone https://github.com/Microsoft/vcpkg.git
-cd vcpkg
-git checkout 07b30b49e5136a36100a2ce644476e60d7f3ddc1
-.\bootstrap-vcpkg.bat
-.\vcpkg.exe install gperf:x64-windows gperf:x86-windows openssl:x64-windows openssl:x86-windows zlib:x64-windows zlib:x86-windows
-```
-* (Optional. For XML documentation generation.) Download [PHP](https://windows.php.net/download). Add the path to php.exe to the PATH environment variable.
-* Build `TDLib` with CMake enabling `.NET` support and specifying correct path to `vcpkg` toolchain file:
-```
-cd <path to TDLib sources>/example/csharp
-mkdir build
-cd build
-cmake -A Win32 -DTD_ENABLE_DOTNET=ON -DCMAKE_TOOLCHAIN_FILE=<path to vcpkg>/scripts/buildsystems/vcpkg.cmake ../../..
-cmake --build . --config Release
-cmake --build . --config Debug
-cd ..
-mkdir build64
-cd build64
-cmake -A x64 -DTD_ENABLE_DOTNET=ON -DCMAKE_TOOLCHAIN_FILE=<path to vcpkg>/scripts/buildsystems/vcpkg.cmake ../../..
-cmake --build . --config Release
-cmake --build . --config Debug
-```
-
-## Example of usage
-
-After `TDLib` is built you can open and run TdExample project.
-It contains a simple console C# application with implementation of authorization and message sending.
-Just open it with Visual Studio 2015 or later and run.
-
-Also, see TdExample.csproj for example of including TDLib in C# project with all native shared library dependencies.
diff --git a/third-party/td/td/example/csharp/TdExample.cs b/third-party/td/td/example/csharp/TdExample.cs
deleted file mode 100644
index a912d9808f..0000000000
--- a/third-party/td/td/example/csharp/TdExample.cs
+++ /dev/null
@@ -1,293 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-using Td = Telegram.Td;
-using TdApi = Telegram.Td.Api;
-
-using System;
-using System.Threading;
-
-namespace TdExample
-{
-    /// <summary>
-    /// Example class for TDLib usage from C#.
-    /// </summary>
-    class Example
-    {
-        private static Td.Client _client = null;
-        private readonly static Td.ClientResultHandler _defaultHandler = new DefaultHandler();
-
-        private static TdApi.AuthorizationState _authorizationState = null;
-        private static volatile bool _haveAuthorization = false;
-        private static volatile bool _needQuit = false;
-        private static volatile bool _canQuit = false;
-
-        private static volatile AutoResetEvent _gotAuthorization = new AutoResetEvent(false);
-
-        private static readonly string _newLine = Environment.NewLine;
-        private static readonly string _commandsLine = "Enter command (gc <chatId> - GetChat, me - GetMe, sm <chatId> <message> - SendMessage, lo - LogOut, r - Restart, q - Quit): ";
-        private static volatile string _currentPrompt = null;
-
-        private static Td.Client CreateTdClient()
-        {
-            return Td.Client.Create(new UpdateHandler());
-        }
-
-        private static void Print(string str)
-        {
-            if (_currentPrompt != null)
-            {
-                Console.WriteLine();
-            }
-            Console.WriteLine(str);
-            if (_currentPrompt != null)
-            {
-                Console.Write(_currentPrompt);
-            }
-        }
-
-        private static string ReadLine(string str)
-        {
-            Console.Write(str);
-            _currentPrompt = str;
-            var result = Console.ReadLine();
-            _currentPrompt = null;
-            return result;
-        }
-
-        private static void OnAuthorizationStateUpdated(TdApi.AuthorizationState authorizationState)
-        {
-            if (authorizationState != null)
-            {
-                _authorizationState = authorizationState;
-            }
-            if (_authorizationState is TdApi.AuthorizationStateWaitTdlibParameters)
-            {
-                TdApi.SetTdlibParameters request = new TdApi.SetTdlibParameters();
-                request.DatabaseDirectory = "tdlib";
-                request.UseMessageDatabase = true;
-                request.UseSecretChats = true;
-                request.ApiId = 94575;
-                request.ApiHash = "a3406de8d171bb422bb6ddf3bbd800e2";
-                request.SystemLanguageCode = "en";
-                request.DeviceModel = "Desktop";
-                request.ApplicationVersion = "1.0";
-
-                _client.Send(request, new AuthorizationRequestHandler());
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateWaitPhoneNumber)
-            {
-                string phoneNumber = ReadLine("Please enter phone number: ");
-                _client.Send(new TdApi.SetAuthenticationPhoneNumber(phoneNumber, null), new AuthorizationRequestHandler());
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateWaitEmailAddress)
-            {
-                string emailAddress = ReadLine("Please enter email address: ");
-                _client.Send(new TdApi.SetAuthenticationEmailAddress(emailAddress), new AuthorizationRequestHandler());
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateWaitEmailCode)
-            {
-                string code = ReadLine("Please enter email authentication code: ");
-                _client.Send(new TdApi.CheckAuthenticationEmailCode(new TdApi.EmailAddressAuthenticationCode(code)), new AuthorizationRequestHandler());
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateWaitOtherDeviceConfirmation state)
-            {
-                Console.WriteLine("Please confirm this login link on another device: " + state.Link);
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateWaitCode)
-            {
-                string code = ReadLine("Please enter authentication code: ");
-                _client.Send(new TdApi.CheckAuthenticationCode(code), new AuthorizationRequestHandler());
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateWaitRegistration)
-            {
-                string firstName = ReadLine("Please enter your first name: ");
-                string lastName = ReadLine("Please enter your last name: ");
-                _client.Send(new TdApi.RegisterUser(firstName, lastName, false), new AuthorizationRequestHandler());
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateWaitPassword)
-            {
-                string password = ReadLine("Please enter password: ");
-                _client.Send(new TdApi.CheckAuthenticationPassword(password), new AuthorizationRequestHandler());
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateReady)
-            {
-                _haveAuthorization = true;
-                _gotAuthorization.Set();
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateLoggingOut)
-            {
-                _haveAuthorization = false;
-                Print("Logging out");
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateClosing)
-            {
-                _haveAuthorization = false;
-                Print("Closing");
-            }
-            else if (_authorizationState is TdApi.AuthorizationStateClosed)
-            {
-                Print("Closed");
-                if (!_needQuit)
-                {
-                    _client = CreateTdClient(); // recreate _client after previous has closed
-                } else {
-                    _canQuit = true;
-                }
-            }
-            else
-            {
-                Print("Unsupported authorization state:" + _newLine + _authorizationState);
-            }
-        }
-
-        private static long GetChatId(string arg)
-        {
-            long chatId = 0;
-            try
-            {
-                chatId = Convert.ToInt64(arg);
-            }
-            catch (FormatException)
-            {
-            }
-            catch (OverflowException)
-            {
-            }
-            return chatId;
-        }
-
-        private static void GetCommand()
-        {
-            string command = ReadLine(_commandsLine);
-            string[] commands = command.Split(new char[] { ' ' }, 2);
-            try
-            {
-                switch (commands[0])
-                {
-                    case "gc":
-                        _client.Send(new TdApi.GetChat(GetChatId(commands[1])), _defaultHandler);
-                        break;
-                    case "me":
-                        _client.Send(new TdApi.GetMe(), _defaultHandler);
-                        break;
-                    case "sm":
-                        string[] args = commands[1].Split(new char[] { ' ' }, 2);
-                        sendMessage(GetChatId(args[0]), args[1]);
-                        break;
-                    case "lo":
-                        _haveAuthorization = false;
-                        _client.Send(new TdApi.LogOut(), _defaultHandler);
-                        break;
-                    case "r":
-                        _haveAuthorization = false;
-                        _client.Send(new TdApi.Close(), _defaultHandler);
-                        break;
-                    case "q":
-                        _needQuit = true;
-                        _haveAuthorization = false;
-                        _client.Send(new TdApi.Close(), _defaultHandler);
-                        break;
-                    default:
-                        Print("Unsupported command: " + command);
-                        break;
-                }
-            }
-            catch (IndexOutOfRangeException)
-            {
-                Print("Not enough arguments");
-            }
-        }
-
-        private static void sendMessage(long chatId, string message)
-        {
-            // initialize reply markup just for testing
-            TdApi.InlineKeyboardButton[] row = { new TdApi.InlineKeyboardButton("https://telegram.org?1", new TdApi.InlineKeyboardButtonTypeUrl()), new TdApi.InlineKeyboardButton("https://telegram.org?2", new TdApi.InlineKeyboardButtonTypeUrl()), new TdApi.InlineKeyboardButton("https://telegram.org?3", new TdApi.InlineKeyboardButtonTypeUrl()) };
-            TdApi.ReplyMarkup replyMarkup = new TdApi.ReplyMarkupInlineKeyboard(new TdApi.InlineKeyboardButton[][] { row, row, row });
-
-            TdApi.InputMessageContent content = new TdApi.InputMessageText(new TdApi.FormattedText(message, null), null, true);
-            _client.Send(new TdApi.SendMessage(chatId, 0, null, null, replyMarkup, content), _defaultHandler);
-        }
-
-        static void Main()
-        {
-            // disable TDLib log
-            Td.Client.Execute(new TdApi.SetLogVerbosityLevel(0));
-            if (Td.Client.Execute(new TdApi.SetLogStream(new TdApi.LogStreamFile("tdlib.log", 1 << 27, false))) is TdApi.Error)
-            {
-                throw new System.IO.IOException("Write access to the current directory is required");
-            }
-            new Thread(() =>
-            {
-                Thread.CurrentThread.IsBackground = true;
-                Td.Client.Run();
-            }).Start();
-
-            // create Td.Client
-            _client = CreateTdClient();
-
-            // test Client.Execute
-            _defaultHandler.OnResult(Td.Client.Execute(new TdApi.GetTextEntities("@telegram /test_command https://telegram.org telegram.me @gif @test")));
-
-            // main loop
-            while (!_needQuit)
-            {
-                // await authorization
-                _gotAuthorization.Reset();
-                _gotAuthorization.WaitOne();
-
-                _client.Send(new TdApi.LoadChats(null, 100), _defaultHandler); // preload main chat list
-                while (_haveAuthorization)
-                {
-                    GetCommand();
-                }
-            }
-            while (!_canQuit) {
-                Thread.Sleep(1);
-            }
-        }
-
-        private class DefaultHandler : Td.ClientResultHandler
-        {
-            void Td.ClientResultHandler.OnResult(TdApi.BaseObject @object)
-            {
-                Print(@object.ToString());
-            }
-        }
-
-        private class UpdateHandler : Td.ClientResultHandler
-        {
-            void Td.ClientResultHandler.OnResult(TdApi.BaseObject @object)
-            {
-                if (@object is TdApi.UpdateAuthorizationState)
-                {
-                    OnAuthorizationStateUpdated((@object as TdApi.UpdateAuthorizationState).AuthorizationState);
-                }
-                else
-                {
-                    // Print("Unsupported update: " + @object);
-                }
-            }
-        }
-
-        private class AuthorizationRequestHandler : Td.ClientResultHandler
-        {
-            void Td.ClientResultHandler.OnResult(TdApi.BaseObject @object)
-            {
-                if (@object is TdApi.Error)
-                {
-                    Print("Receive an error:" + _newLine + @object);
-                    OnAuthorizationStateUpdated(null); // repeat last action
-                }
-                else
-                {
-                    // result is already received through UpdateAuthorizationState, nothing to do
-                }
-            }
-        }
-    }
-}
diff --git a/third-party/td/td/example/csharp/TdExample.csproj b/third-party/td/td/example/csharp/TdExample.csproj
deleted file mode 100644
index c99773fc09..0000000000
--- a/third-party/td/td/example/csharp/TdExample.csproj
+++ /dev/null
@@ -1,119 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
-    <ProjectGuid>{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}</ProjectGuid>
-    <OutputType>Exe</OutputType>
-    <NoStandardLibraries>false</NoStandardLibraries>
-    <AssemblyName>ConsoleApplication</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
-    <TargetFrameworkProfile>Client</TargetFrameworkProfile>
-    <FileAlignment>512</FileAlignment>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <PlatformTarget>x86</PlatformTarget>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <PlatformTarget>x86</PlatformTarget>
-  </PropertyGroup>
-  <PropertyGroup>
-    <RootNamespace>TdExample</RootNamespace>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x64\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
-    <OutputPath>bin\x64\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <Optimize>true</Optimize>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="System.Xml" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="Telegram.Td, Version=0.0.0.0, Culture=neutral, processorArchitecture=AMD64">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath Condition=" '$(Platform)' == 'x86' ">build\$(Configuration)\Telegram.Td.dll</HintPath>
-      <HintPath Condition=" '$(Platform)' == 'x64' ">build64\$(Configuration)\Telegram.Td.dll</HintPath>
-    </Reference>
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="TdExample.cs" />
-  </ItemGroup>
-  <ItemGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
-    <Content Include="build\Debug\zlibd1.dll">
-      <Link>zlibd1.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
-  <ItemGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
-    <Content Include="build\Release\zlib1.dll">
-      <Link>zlib1.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
-  <ItemGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x64' ">
-    <Content Include="build64\Debug\zlibd1.dll">
-      <Link>zlibd1.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
-  <ItemGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x64' ">
-    <Content Include="build64\Release\zlib1.dll">
-      <Link>zlib1.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
-  <ItemGroup Condition=" '$(Platform)' == 'x86' ">
-    <Content Include="build\$(Configuration)\libcrypto-3.dll">
-      <Link>libcrypto-3.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-    <Content Include="build\$(Configuration)\libssl-3.dll">
-      <Link>libssl-3.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
-  <ItemGroup Condition=" '$(Platform)' == 'x64' ">
-    <Content Include="build64\$(Configuration)\libcrypto-3-x64.dll">
-      <Link>libcrypto-3-x64.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-    <Content Include="build64\$(Configuration)\libssl-3-x64.dll">
-      <Link>libssl-3-x64.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSHARP.Targets" />
-  <ProjectExtensions>
-    <VisualStudio AllowExistingFolder="true" />
-  </ProjectExtensions>
-</Project>
\ No newline at end of file
diff --git a/third-party/td/td/example/csharp/TdExample.sln b/third-party/td/td/example/csharp/TdExample.sln
deleted file mode 100644
index 204063dfc2..0000000000
--- a/third-party/td/td/example/csharp/TdExample.sln
+++ /dev/null
@@ -1,31 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.28010.2046
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TdExample", "TdExample.csproj", "{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}.Debug|x64.ActiveCfg = Debug|x64
-		{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}.Debug|x64.Build.0 = Debug|x64
-		{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}.Debug|x86.ActiveCfg = Debug|x86
-		{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}.Debug|x86.Build.0 = Debug|x86
-		{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}.Release|x64.ActiveCfg = Release|x64
-		{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}.Release|x64.Build.0 = Release|x64
-		{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}.Release|x86.ActiveCfg = Release|x86
-		{3F9A93EA-DC26-4F8B-ACE0-131B33B00CA7}.Release|x86.Build.0 = Release|x86
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {865856BA-F733-45DF-B35F-12607605B023}
-	EndGlobalSection
-EndGlobal
diff --git a/third-party/td/td/example/ios/Python-Apple-support.patch b/third-party/td/td/example/ios/Python-Apple-support.patch
deleted file mode 100644
index 4ef7827be9..0000000000
--- a/third-party/td/td/example/ios/Python-Apple-support.patch
+++ /dev/null
@@ -1,118 +0,0 @@
-diff --git a/Makefile b/Makefile
-index a1d13e9..8efcf20 100644
---- a/Makefile
-+++ b/Makefile
-@@ -18,8 +18,13 @@
- # - OpenSSL         - build OpenSSL for all platforms
- # - OpenSSL-macOS   - build OpenSSL for macOS
- # - OpenSSL-iOS     - build OpenSSL for iOS
-+# - OpenSSL-iOS-simulator     - build OpenSSL for iOS-simulator
- # - OpenSSL-tvOS    - build OpenSSL for tvOS
-+# - OpenSSL-tvOS-simulator    - build OpenSSL for tvOS-simulator
- # - OpenSSL-watchOS - build OpenSSL for watchOS
-+# - OpenSSL-watchOS-simulator - build OpenSSL for watchOS-simulator
-+# - OpenSSL-visionOS - build OpenSSL for visionOS
-+# - OpenSSL-visionOS-simulator - build OpenSSL for visionOS-simulator
- # - libFFI          - build libFFI for all platforms (except macOS)
- # - libFFI-iOS      - build libFFI for iOS
- # - libFFI-tvOS     - build libFFI for tvOS
-@@ -50,7 +55,7 @@ XZ_VERSION=5.4.2
- # Preference is to use OpenSSL 3; however, Cryptography 3.4.8 (and
- # probably some other packages as well) only works with 1.1.1, so
- # we need to preserve the ability to build the older OpenSSL (for now...)
--OPENSSL_VERSION=3.1.0
-+OPENSSL_VERSION=3.1.5
- # OPENSSL_VERSION_NUMBER=1.1.1
- # OPENSSL_REVISION=q
- # OPENSSL_VERSION=$(OPENSSL_VERSION_NUMBER)$(OPENSSL_REVISION)
-@@ -59,7 +64,7 @@ LIBFFI_VERSION=3.4.2
- 
- # Supported OS and dependencies
- DEPENDENCIES=BZip2 XZ OpenSSL libFFI
--OS_LIST=macOS iOS tvOS watchOS
-+OS_LIST=macOS iOS iOS-simulator tvOS tvOS-simulator watchOS watchOS-simulator visionOS visionOS-simulator
- 
- CURL_FLAGS=--disable --fail --location --create-dirs --progress-bar
- 
-@@ -69,22 +74,41 @@ VERSION_MIN-macOS=10.15
- CFLAGS-macOS=-mmacosx-version-min=$(VERSION_MIN-macOS)
- 
- # iOS targets
--TARGETS-iOS=iphonesimulator.x86_64 iphonesimulator.arm64 iphoneos.arm64
-+TARGETS-iOS=iphoneos.arm64
- VERSION_MIN-iOS=12.0
- CFLAGS-iOS=-mios-version-min=$(VERSION_MIN-iOS)
- 
-+# iOS-simulator targets
-+TARGETS-iOS-simulator=iphonesimulator.x86_64 iphonesimulator.arm64
-+CFLAGS-iOS-simulator=-mios-simulator-version-min=$(VERSION_MIN-iOS)
-+
- # tvOS targets
--TARGETS-tvOS=appletvsimulator.x86_64 appletvsimulator.arm64 appletvos.arm64
-+TARGETS-tvOS=appletvos.arm64
- VERSION_MIN-tvOS=9.0
- CFLAGS-tvOS=-mtvos-version-min=$(VERSION_MIN-tvOS)
- PYTHON_CONFIGURE-tvOS=ac_cv_func_sigaltstack=no
- 
-+# tvOS-simulator targets
-+TARGETS-tvOS-simulator=appletvsimulator.x86_64 appletvsimulator.arm64
-+CFLAGS-tvOS-simulator=-mtvos-simulator-version-min=$(VERSION_MIN-tvOS)
-+
- # watchOS targets
--TARGETS-watchOS=watchsimulator.x86_64 watchsimulator.arm64 watchos.arm64_32
-+TARGETS-watchOS=watchos.armv7k watchos.arm64_32 watchos.arm64
- VERSION_MIN-watchOS=4.0
- CFLAGS-watchOS=-mwatchos-version-min=$(VERSION_MIN-watchOS)
- PYTHON_CONFIGURE-watchOS=ac_cv_func_sigaltstack=no
- 
-+# watchOS-simulator targets
-+TARGETS-watchOS-simulator=watchsimulator.i386 watchsimulator.x86_64 watchsimulator.arm64
-+CFLAGS-watchOS-simulator=-mwatchos-simulator-version-min=$(VERSION_MIN-watchOS)
-+
-+# visionOS targets
-+TARGETS-visionOS=xros.arm64
-+PYTHON_CONFIGURE-visionOS=ac_cv_func_sigaltstack=no
-+
-+# visionOS-simulator targets
-+TARGETS-visionOS-simulator=xrsimulator.x86_64 xrsimulator.arm64
-+
- # The architecture of the machine doing the build
- HOST_ARCH=$(shell uname -m)
- HOST_PYTHON=install/macOS/macosx/python-$(PYTHON_VERSION)
-@@ -212,6 +236,10 @@ ARCH-$(target)=$$(subst .,,$$(suffix $(target)))
- 
- ifeq ($(os),macOS)
- TARGET_TRIPLE-$(target)=$$(ARCH-$(target))-apple-darwin
-+else ifeq ($(os),visionOS)
-+TARGET_TRIPLE-$(target)=$$(ARCH-$(target))-apple-xros
-+else ifeq ($(os),visionOS-simulator)
-+TARGET_TRIPLE-$(target)=$$(ARCH-$(target))-apple-xros-simulator
- else
- 	ifeq ($$(findstring simulator,$$(SDK-$(target))),)
- TARGET_TRIPLE-$(target)=$$(ARCH-$(target))-apple-$$(OS_LOWER-$(target))
-@@ -662,7 +690,7 @@ BZIP2_FATLIB-$(sdk)=$$(BZIP2_MERGE-$(sdk))/lib/libbz2.a
- XZ_MERGE-$(sdk)=$(PROJECT_DIR)/merge/$(os)/$(sdk)/xz-$(XZ_VERSION)
- XZ_FATLIB-$(sdk)=$$(XZ_MERGE-$(sdk))/lib/liblzma.a
- 
--OPENSSL_MERGE-$(sdk)=$(PROJECT_DIR)/merge/$(os)/$(sdk)/openssl-$(OPENSSL_VERSION)
-+OPENSSL_MERGE-$(sdk)=$(PROJECT_DIR)/merge/$(os)/openssl
- OPENSSL_FATINCLUDE-$(sdk)=$$(OPENSSL_MERGE-$(sdk))/include
- OPENSSL_SSL_FATLIB-$(sdk)=$$(OPENSSL_MERGE-$(sdk))/lib/libssl.a
- OPENSSL_CRYPTO_FATLIB-$(sdk)=$$(OPENSSL_MERGE-$(sdk))/lib/libcrypto.a
-@@ -716,14 +744,14 @@ $$(OPENSSL_SSL_FATLIB-$(sdk)): $$(foreach target,$$(SDK_TARGETS-$(sdk)),$$(OPENS
- 	mkdir -p $$(OPENSSL_MERGE-$(sdk))/lib
- 	lipo -create -output $$@ \
- 		$$(foreach target,$$(SDK_TARGETS-$(sdk)),$$(OPENSSL_SSL_LIB-$$(target))) \
--		2>&1 | tee -a merge/$(os)/$(sdk)/openssl-$(OPENSSL_VERSION).ssl.lipo.log
-+		2>&1 | tee -a merge/$(os)/openssl-$(OPENSSL_VERSION).ssl.lipo.log
- 
- $$(OPENSSL_CRYPTO_FATLIB-$(sdk)): $$(foreach target,$$(SDK_TARGETS-$(sdk)),$$(OPENSSL_CRYPTO_LIB-$$(target)))
- 	@echo ">>> Build OpenSSL crypto fat library for $(sdk)"
- 	mkdir -p $$(OPENSSL_MERGE-$(sdk))/lib
- 	lipo -create -output $$@ \
- 		$$(foreach target,$$(SDK_TARGETS-$(sdk)),$$(OPENSSL_CRYPTO_LIB-$$(target))) \
--		2>&1 | tee -a merge/$(os)/$(sdk)/openssl-$(OPENSSL_VERSION).crypto.lipo.log
-+		2>&1 | tee -a merge/$(os)/openssl-$(OPENSSL_VERSION).crypto.lipo.log
- 
- ###########################################################################
- # SDK: libFFI
diff --git a/third-party/td/td/example/ios/README.md b/third-party/td/td/example/ios/README.md
deleted file mode 100644
index 9f91042a55..0000000000
--- a/third-party/td/td/example/ios/README.md
+++ /dev/null
@@ -1,46 +0,0 @@
-# Universal XCFramework build example
-
-Below are instructions for building TDLib for iOS, watchOS, tvOS, visionOS, and also macOS.
-
-If you need only a macOS build for the current architecture, take a look at [TDLib build instructions generator](https://tdlib.github.io/td/build.html).
-
-For example of usage take a look at our [Swift example](https://github.com/tdlib/td/tree/master/example/swift).
-
-To compile `TDLib` you will need to:
-* Install the latest Xcode via `xcode-select --install` or downloading it from [Xcode website](https://developer.apple.com/xcode/).
-  It is not enough to install only command line developer tools to build `TDLib` for iOS. Xcode >= 14.0 is required to build TDLib for watchOS.
-* Install other build dependencies using [Homebrew](https://brew.sh):
-```
-brew install gperf cmake coreutils
-```
-* If you don't want to build `TDLib` for macOS first, you **must** pregenerate required source code files in the following way:
-```
-cd <path to TDLib sources>
-mkdir native-build
-cd native-build
-cmake -DTD_GENERATE_SOURCE_FILES=ON ..
-cmake --build .
-```
-* Build OpenSSL for iOS, watchOS, tvOS, visionOS, and macOS:
-```
-cd <path to TDLib sources>/example/ios
-./build-openssl.sh
-```
-Here we use scripts from [Python Apple support](https://github.com/beeware/Python-Apple-support), but any other OpenSSL build should work too.
-[Python Apple support](https://github.com/beeware/Python-Apple-support) has known problems with spaces in the path to the current directory, so
-you need to ensure that there are no spaces in the path.
-Built OpenSSL libraries should be stored in the directory `third_party/openssl/<platform>`, because the next script will rely on this location.
-* Build TDLib for iOS, watchOS, tvOS, visionOS, and macOS:
-```
-cd <path to TDLib sources>/example/ios
-./build.sh
-```
-This may take a while, because TDLib will be built about 16 times.
-Resulting XCFramework will work on any architecture and even on a simulator.
-We use [CMake/iOS.cmake](https://github.com/tdlib/td/blob/master/CMake/iOS.cmake) toolchain, other toolchains may work too.
-
-Built libraries and XCFramework will be stored in `tdjson` directory.
-
-Documentation for all available classes and methods can be found at https://core.telegram.org/tdlib/docs.
-
-If you receive an "error: SDK "appletvsimulator" cannot be located", you need to run the command "sudo xcode-select -s /Applications/Xcode.app/Contents/Developer" before running ./build.sh.
diff --git a/third-party/td/td/example/ios/build-openssl.sh b/third-party/td/td/example/ios/build-openssl.sh
deleted file mode 100755
index 91fe6e6d27..0000000000
--- a/third-party/td/td/example/ios/build-openssl.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/bin/sh
-cd $(dirname $0)
-
-git clone https://github.com/beeware/Python-Apple-support
-cd Python-Apple-support
-git checkout 6f43aba0ddd5a9f52f39775d0141bd4363614020 || exit 1
-git reset --hard || exit 1
-git apply ../Python-Apple-support.patch || exit 1
-cd ..
-
-platforms="macOS iOS watchOS tvOS visionOS"
-
-for platform in $platforms;
-do
-  if [[ $platform = "macOS" ]]; then
-    simulators="0"
-  else
-    simulators="0 1"
-  fi
-
-  for simulator in $simulators;
-  do
-    if [[ $simulator = "1" ]]; then
-      platform="${platform}-simulator"
-    fi
-    echo $platform
-    cd Python-Apple-support
-    #NB: -j will fail
-    make OpenSSL-$platform || exit 1
-    cd ..
-    rm -rf third_party/openssl/$platform || exit 1
-    mkdir -p third_party/openssl/$platform/lib || exit 1
-    cp ./Python-Apple-support/merge/$platform/openssl/lib/libcrypto.a third_party/openssl/$platform/lib/ || exit 1
-    cp ./Python-Apple-support/merge/$platform/openssl/lib/libssl.a third_party/openssl/$platform/lib/ || exit 1
-    cp -r ./Python-Apple-support/merge/$platform/openssl/include/ third_party/openssl/$platform/include || exit 1
-  done
-done
diff --git a/third-party/td/td/example/ios/build.sh b/third-party/td/td/example/ios/build.sh
deleted file mode 100755
index ca19b285a0..0000000000
--- a/third-party/td/td/example/ios/build.sh
+++ /dev/null
@@ -1,92 +0,0 @@
-#!/bin/sh
-cd $(dirname $0)
-td_path=$(grealpath ../..)
-
-rm -rf build
-mkdir -p build
-cd build
-
-set_cmake_options () {
-  # Set CMAKE options depending on platform passed $1
-  openssl_path=$(grealpath ../third_party/openssl/$1)
-  echo "OpenSSL path = ${openssl_path}"
-  openssl_crypto_library="${openssl_path}/lib/libcrypto.a"
-  openssl_ssl_library="${openssl_path}/lib/libssl.a"
-  options=""
-  options="$options -DOPENSSL_FOUND=1"
-  options="$options -DOPENSSL_CRYPTO_LIBRARY=${openssl_crypto_library}"
-  options="$options -DOPENSSL_SSL_LIBRARY=${openssl_ssl_library}"
-  options="$options -DOPENSSL_INCLUDE_DIR=${openssl_path}/include"
-  options="$options -DOPENSSL_LIBRARIES=${openssl_crypto_library};${openssl_ssl_library}"
-  options="$options -DCMAKE_BUILD_TYPE=Release"
-}
-
-platforms="macOS iOS watchOS tvOS visionOS"
-#platforms="watchOS"
-for platform in $platforms;
-do
-  echo "Platform = ${platform}"
-  if [[ $platform = "macOS" ]]; then
-    simulators="0"
-  else
-    simulators="0 1"
-  fi
-
-  for simulator in $simulators;
-  do
-    if [[ $platform = "macOS" ]]; then
-      other_options="-DCMAKE_OSX_ARCHITECTURES='x86_64;arm64'"
-    else
-      if [[ $platform = "watchOS" ]]; then
-        ios_platform="WATCH"
-      elif [[ $platform = "tvOS" ]]; then
-        ios_platform="TV"
-      elif [[ $platform = "visionOS" ]]; then
-        ios_platform="VISION"
-      else
-        ios_platform=""
-      fi
-
-      if [[ $simulator = "1" ]]; then
-        platform="${platform}-simulator"
-        ios_platform="${ios_platform}SIMULATOR"
-      else
-        ios_platform="${ios_platform}OS"
-      fi
-
-      echo "iOS platform = ${ios_platform}"
-      other_options="-DIOS_PLATFORM=${ios_platform} -DCMAKE_TOOLCHAIN_FILE=${td_path}/CMake/iOS.cmake"
-    fi
-
-    set_cmake_options $platform
-    build="build-${platform}"
-    install="install-${platform}"
-    rm -rf $build
-    mkdir -p $build
-    mkdir -p $install
-    cd $build
-    cmake $td_path $options $other_options -DCMAKE_INSTALL_PREFIX=../${install}
-    make -j3 install || exit
-    cd ..
-    install_name_tool -id @rpath/libtdjson.dylib ${install}/lib/libtdjson.dylib
-    mkdir -p ../tdjson/${platform}/include
-    rsync --recursive ${install}/include/ ../tdjson/${platform}/include/
-    mkdir -p ../tdjson/${platform}/lib
-    cp ${install}/lib/libtdjson.dylib ../tdjson/${platform}/lib/
-  done
-done
-
-produced_dylibs=(install-*/lib/libtdjson.dylib)
-xcodebuild_frameworks=()
-
-for dylib in "${produced_dylibs[@]}";
-do
-  xcodebuild_frameworks+=(-library $(grealpath "${dylib}"))
-done
-
-# Make xcframework
-xcodebuild -create-xcframework \
-    "${xcodebuild_frameworks[@]}" \
-    -output "libtdjson.xcframework"
-
-rsync --recursive libtdjson.xcframework ../tdjson/
diff --git a/third-party/td/td/example/java/.gitignore b/third-party/td/td/example/java/.gitignore
deleted file mode 100644
index f6b1fc6596..0000000000
--- a/third-party/td/td/example/java/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-**/*build/
-/bin/
-/docs/
-/org/drinkless/tdlib/TdApi.java
-/td/
diff --git a/third-party/td/td/example/java/CMakeLists.txt b/third-party/td/td/example/java/CMakeLists.txt
deleted file mode 100644
index 267ae42345..0000000000
--- a/third-party/td/td/example/java/CMakeLists.txt
+++ /dev/null
@@ -1,141 +0,0 @@
-cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
-
-project(TdJavaExample VERSION 1.0 LANGUAGES CXX)
-
-option(TD_JSON_JAVA "Use \"ON\" to build Java wrapper for JSON API.")
-
-if (POLICY CMP0074)
-  # use environment variables to find libraries
-  cmake_policy(SET CMP0074 NEW)
-endif()
-
-find_package(Td REQUIRED)
-
-if (NOT JNI_FOUND)
-  find_package(JNI REQUIRED COMPONENTS JVM)
-endif()
-message(STATUS "Found JNI: ${JNI_INCLUDE_DIRS} ${JNI_LIBRARIES}")
-
-if (NOT Java_FOUND)
-  find_package(Java REQUIRED)
-endif()
-message(STATUS "Found Java: ${Java_JAVAC_EXECUTABLE} ${Java_JAVADOC_EXECUTABLE}")
-
-# Generating TdApi.java
-set(TD_API_JAVA_PACKAGE "org/drinkless/tdlib")
-set(TD_API_JAVA_PATH ${CMAKE_CURRENT_SOURCE_DIR})
-set(JAVA_SOURCE_PATH "${TD_API_JAVA_PATH}/${TD_API_JAVA_PACKAGE}")
-if (TD_JSON_JAVA)
-  add_custom_target(td_generate_java_api
-    COMMAND cmake -E echo ""
-    COMMENT "Skip generation of Java TDLib API source files"
-  )
-
-  set(JAVA_EXAMPLE_FILES "${JAVA_SOURCE_PATH}/example/JsonExample.java")
-  set(JAVA_SOURCE_FILES "${JAVA_SOURCE_PATH}/JsonClient.java")
-else()
-  find_program(PHP_EXECUTABLE php)
-  if ((CMAKE_SYSTEM_NAME MATCHES "FreeBSD") AND (CMAKE_SYSTEM_VERSION MATCHES "HBSD"))
-    set(PHP_EXECUTABLE "PHP_EXECUTABLE-NOTFOUND")
-  endif()
-
-  set(TD_API_TLO_PATH ${CMAKE_CURRENT_SOURCE_DIR}/td/bin/td/generate/scheme/td_api.tlo)
-  set(TD_API_TL_PATH ${CMAKE_CURRENT_SOURCE_DIR}/td/bin/td/generate/scheme/td_api.tl)
-  set(JAVADOC_TL_DOCUMENTATION_GENERATOR_PATH ${CMAKE_CURRENT_SOURCE_DIR}/td/bin/td/generate/JavadocTlDocumentationGenerator.php)
-  set(GENERATE_JAVA_API_CMD ${CMAKE_CURRENT_SOURCE_DIR}/td/bin/td_generate_java_api TdApi "${TD_API_TLO_PATH}" "${TD_API_JAVA_PATH}" "${TD_API_JAVA_PACKAGE}")
-  if (PHP_EXECUTABLE)
-    set(GENERATE_JAVA_API_CMD ${GENERATE_JAVA_API_CMD} && ${PHP_EXECUTABLE} "${JAVADOC_TL_DOCUMENTATION_GENERATOR_PATH}" "${TD_API_TL_PATH}" "${JAVA_SOURCE_PATH}/TdApi.java")
-  endif()
-
-  add_custom_target(td_generate_java_api
-    COMMAND ${GENERATE_JAVA_API_CMD}
-    COMMENT "Generating Java TDLib API source files"
-    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/td/bin/td_generate_java_api ${TD_API_TLO_PATH} ${TD_API_TL_PATH} ${JAVADOC_TL_DOCUMENTATION_GENERATOR_PATH}
-  )
-
-  set(JAVA_EXAMPLE_FILES "${JAVA_SOURCE_PATH}/example/Example.java")
-  set(JAVA_SOURCE_FILES "${JAVA_SOURCE_PATH}/Client.java" "${JAVA_SOURCE_PATH}/TdApi.java")
-endif()
-
-if (CMAKE_VERSION VERSION_LESS "3.17")
-  set(CMAKE_RM_COMMAND remove_directory)
-else()
-  set(CMAKE_RM_COMMAND rm -rf --)
-endif()
-
-get_filename_component(JAVA_OUTPUT_DIRECTORY ${CMAKE_INSTALL_PREFIX}/bin REALPATH BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
-file(MAKE_DIRECTORY ${JAVA_OUTPUT_DIRECTORY})
-add_custom_target(build_java
-  COMMAND ${CMAKE_COMMAND} -E ${CMAKE_RM_COMMAND} "${JAVA_OUTPUT_DIRECTORY}/${TD_API_JAVA_PACKAGE}"
-  COMMAND ${Java_JAVAC_EXECUTABLE} -encoding UTF-8 -d "${JAVA_OUTPUT_DIRECTORY}" ${JAVA_EXAMPLE_FILES} ${JAVA_SOURCE_FILES}
-  COMMENT "Building Java code"
-  DEPENDS td_generate_java_api
-)
-
-add_custom_target(generate_javadoc
-  COMMAND ${CMAKE_COMMAND} -E ${CMAKE_RM_COMMAND} "${JAVA_OUTPUT_DIRECTORY}/../docs"
-  COMMAND ${Java_JAVADOC_EXECUTABLE} -encoding UTF-8 -charset UTF-8 -d "${JAVA_OUTPUT_DIRECTORY}/../docs" ${JAVA_SOURCE_FILES}
-  WORKING_DIRECTORY ${TD_API_JAVA_PATH}
-  COMMENT "Generating Javadoc documentation"
-  DEPENDS td_generate_java_api
-)
-
-# Building shared library
-add_library(tdjni SHARED
-  td_jni.cpp
-)
-target_include_directories(tdjni PRIVATE ${JAVA_INCLUDE_PATH} ${JAVA_INCLUDE_PATH2})
-target_link_libraries(tdjni PRIVATE ${JAVA_JVM_LIBRARY})
-target_compile_definitions(tdjni PRIVATE PACKAGE_NAME="${TD_API_JAVA_PACKAGE}")
-
-if (TD_JSON_JAVA)
-  target_link_libraries(tdjni PRIVATE Td::TdJsonStatic)
-  target_compile_definitions(tdjni PRIVATE TD_JSON_JAVA=1)
-  set_target_properties(tdjni PROPERTIES OUTPUT_NAME "tdjsonjava")
-else()
-  target_link_libraries(tdjni PRIVATE Td::TdStatic)
-endif()
-
-if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-  set(GCC 1)
-elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-  set(CLANG 1)
-elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
-  set(INTEL 1)
-elseif (NOT MSVC)
-  message(FATAL_ERROR "Compiler isn't supported")
-endif()
-
-include(CheckCXXCompilerFlag)
-
-if (GCC OR CLANG OR INTEL)
-  if (WIN32 AND INTEL)
-    set(STD14_FLAG /Qstd=c++14)
-  else()
-    set(STD14_FLAG -std=c++14)
-  endif()
-  check_cxx_compiler_flag(${STD14_FLAG} HAVE_STD14)
-  if (NOT HAVE_STD14)
-    string(REPLACE "c++14" "c++1y" STD14_FLAG "${STD14_FLAG}")
-    check_cxx_compiler_flag(${STD14_FLAG} HAVE_STD1Y)
-    set(HAVE_STD14 ${HAVE_STD1Y})
-  endif()
-
-  target_compile_options(tdjni PRIVATE "${STD14_FLAG}")
-elseif (MSVC)
-  set(HAVE_STD14 MSVC_VERSION>=1900)
-endif()
-
-if (NOT HAVE_STD14)
-  message(FATAL_ERROR "No C++14 support in the compiler. Please upgrade the compiler.")
-endif()
-
-add_dependencies(tdjni td_generate_java_api build_java generate_javadoc)
-
-install(TARGETS tdjni
-  LIBRARY DESTINATION bin
-  RUNTIME DESTINATION bin
-)
-if (MSVC AND VCPKG_TOOLCHAIN)
-  install(DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/$<CONFIG>/" DESTINATION bin FILES_MATCHING PATTERN "*.dll" PATTERN "*.pdb")
-endif()
diff --git a/third-party/td/td/example/java/README.md b/third-party/td/td/example/java/README.md
deleted file mode 100644
index ca103947f5..0000000000
--- a/third-party/td/td/example/java/README.md
+++ /dev/null
@@ -1,47 +0,0 @@
-# TDLib Java example
-
-To run this example, you will need installed JDK >= 1.6.
-For Javadoc documentation generation PHP is needed.
-
-You can find complete build instructions for your operating system at https://tdlib.github.io/td/build.html?language=Java.
-
-In general, the build process looks as follows.
-
-TDLib should be prebuilt with JNI bindings and installed to local subdirectory `td/` as follows:
-```
-cd <path to TDLib sources>
-mkdir jnibuild
-cd jnibuild
-cmake -DCMAKE_BUILD_TYPE=Release -DTD_ENABLE_JNI=ON -DCMAKE_INSTALL_PREFIX:PATH=../example/java/td ..
-cmake --build . --target install
-```
-If you want to compile TDLib for 32-bit/64-bit Java on Windows using MSVC, you will also need to add `-A Win32`/`-A x64` option to CMake.
-
-In Windows, use vcpkg toolchain file by adding parameter -DCMAKE_TOOLCHAIN_FILE=<VCPKG_DIR>/scripts/buildsystems/vcpkg.cmake
-
-If you want to build JsonClient.java wrapper for JSON interface instead of the native JNI interface, add `-DTD_JSON_JAVA=ON` option to CMake.
-
-After this you can compile the example source code:
-```
-cd <path to TDLib sources>/example/java
-mkdir build
-cd build
-cmake -DCMAKE_BUILD_TYPE=Release -DTd_DIR=<full path to TDLib sources>/example/java/td/lib/cmake/Td -DCMAKE_INSTALL_PREFIX:PATH=.. ..
-cmake --build . --target install
-```
-
-Compiled TDLib shared library and Java example after that will be placed in `bin/` and Javadoc documentation in `docs/`.
-
-After this you can run the Java example:
-```
-cd <path to TDLib sources>/example/java/bin
-java '-Djava.library.path=.' org/drinkless/tdlib/example/Example
-```
-
-If you built JSON interface example using `-DTD_JSON_JAVA=ON` option, then use the command `java '-Djava.library.path=.' org/drinkless/tdlib/example/JsonExample` instead.
-
-If you receive "Could NOT find JNI ..." error from CMake, you need to specify to CMake path to the installed JDK, for example, "-DJAVA_HOME=/usr/lib/jvm/java-8-oracle/".
-
-If you receive java.lang.UnsatisfiedLinkError with "Can't find dependent libraries", you may also need to copy some dependent shared OpenSSL and zlib libraries to `bin/`.
-
-Make sure that you compiled the example for the same architecture as your JVM.
diff --git a/third-party/td/td/example/java/org/drinkless/tdlib/Client.java b/third-party/td/td/example/java/org/drinkless/tdlib/Client.java
deleted file mode 100644
index d680b2bfd8..0000000000
--- a/third-party/td/td/example/java/org/drinkless/tdlib/Client.java
+++ /dev/null
@@ -1,259 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-package org.drinkless.tdlib;
-
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.atomic.AtomicLong;
-
-/**
- * Main class for interaction with the TDLib.
- */
-public final class Client {
-    static {
-        try {
-            System.loadLibrary("tdjni");
-        } catch (UnsatisfiedLinkError e) {
-            e.printStackTrace();
-        }
-    }
-
-    /**
-     * Interface for handler for results of queries to TDLib and incoming updates from TDLib.
-     */
-    public interface ResultHandler {
-        /**
-         * Callback called on result of query to TDLib or incoming update from TDLib.
-         *
-         * @param object Result of query or update of type TdApi.Update about new events.
-         */
-        void onResult(TdApi.Object object);
-    }
-
-    /**
-     * Interface for handler of exceptions thrown while invoking ResultHandler.
-     * By default, all such exceptions are ignored.
-     * All exceptions thrown from ExceptionHandler are ignored.
-     */
-    public interface ExceptionHandler {
-        /**
-         * Callback called on exceptions thrown while invoking ResultHandler.
-         *
-         * @param e Exception thrown by ResultHandler.
-         */
-        void onException(Throwable e);
-    }
-
-    /**
-     * Interface for handler of messages that are added to the internal TDLib log.
-     */
-    public interface LogMessageHandler {
-        /**
-         * Callback called on messages that are added to the internal TDLib log.
-         *
-         * @param verbosityLevel Log verbosity level with which the message was added from -1 up to 1024.
-         *                       If 0, then TDLib will crash as soon as the callback returns.
-         *                       None of the TDLib methods can be called from the callback.
-         * @param message        The message added to the internal TDLib log.
-         */
-        void onLogMessage(int verbosityLevel, String message);
-    }
-
-    /**
-     * Exception class thrown when TDLib error occurred while performing {@link #execute(TdApi.Function)}.
-     */
-    public static class ExecutionException extends Exception {
-        /**
-         * Original TDLib error occurred when performing one of the synchronous functions.
-         */
-        public final TdApi.Error error;
-
-        /**
-         * @param error TDLib error occurred while performing {@link #execute(TdApi.Function)}.
-         */
-        ExecutionException (TdApi.Error error) {
-            super(error.code + ": " + error.message);
-            this.error = error;
-        }
-    }
-
-    /**
-     * Sends a request to the TDLib.
-     *
-     * @param query            Object representing a query to the TDLib.
-     * @param resultHandler    Result handler with onResult method which will be called with result
-     *                         of the query or with TdApi.Error as parameter. If it is null, nothing
-     *                         will be called.
-     * @param exceptionHandler Exception handler with onException method which will be called on
-     *                         exception thrown from resultHandler. If it is null, then
-     *                         defaultExceptionHandler will be called.
-     */
-    public void send(TdApi.Function query, ResultHandler resultHandler, ExceptionHandler exceptionHandler) {
-        long queryId = currentQueryId.incrementAndGet();
-        if (resultHandler != null) {
-            handlers.put(queryId, new Handler(resultHandler, exceptionHandler));
-        }
-        nativeClientSend(nativeClientId, queryId, query);
-    }
-
-    /**
-     * Sends a request to the TDLib with an empty ExceptionHandler.
-     *
-     * @param query         Object representing a query to the TDLib.
-     * @param resultHandler Result handler with onResult method which will be called with result
-     *                      of the query or with TdApi.Error as parameter. If it is null, then
-     *                      defaultExceptionHandler will be called.
-     */
-    public void send(TdApi.Function query, ResultHandler resultHandler) {
-        send(query, resultHandler, null);
-    }
-
-    /**
-     * Synchronously executes a TDLib request. Only a few marked accordingly requests can be executed synchronously.
-     *
-     * @param query Object representing a query to the TDLib.
-     * @param <T> Automatically deduced return type of the query.
-     * @return request result.
-     * @throws ExecutionException if query execution fails.
-     */
-    @SuppressWarnings("unchecked")
-    public static <T extends TdApi.Object> T execute(TdApi.Function<T> query) throws ExecutionException {
-        TdApi.Object object = nativeClientExecute(query);
-        if (object instanceof TdApi.Error) {
-            throw new ExecutionException((TdApi.Error) object);
-        }
-        return (T) object;
-    }
-
-    /**
-     * Creates new Client.
-     *
-     * @param updateHandler           Handler for incoming updates.
-     * @param updateExceptionHandler  Handler for exceptions thrown from updateHandler. If it is null, exceptions will be ignored.
-     * @param defaultExceptionHandler Default handler for exceptions thrown from all ResultHandler. If it is null, exceptions will be ignored.
-     * @return created Client
-     */
-    public static Client create(ResultHandler updateHandler, ExceptionHandler updateExceptionHandler, ExceptionHandler defaultExceptionHandler) {
-        Client client = new Client(updateHandler, updateExceptionHandler, defaultExceptionHandler);
-        synchronized (responseReceiver) {
-            if (!responseReceiver.isRun) {
-                responseReceiver.isRun = true;
-
-                Thread receiverThread = new Thread(responseReceiver, "TDLib thread");
-                receiverThread.setDaemon(true);
-                receiverThread.start();
-            }
-        }
-        return client;
-    }
-
-    /**
-     * Sets the handler for messages that are added to the internal TDLib log.
-     * None of the TDLib methods can be called from the callback.
-     *
-     * @param maxVerbosityLevel The maximum verbosity level of messages for which the callback will be called.
-     * @param logMessageHandler Handler for messages that are added to the internal TDLib log. Pass null to remove the handler.
-     */
-    public static void setLogMessageHandler(int maxVerbosityLevel, Client.LogMessageHandler logMessageHandler) {
-        nativeClientSetLogMessageHandler(maxVerbosityLevel, logMessageHandler);
-    }
-
-    private static class ResponseReceiver implements Runnable {
-        public boolean isRun = false;
-
-        @Override
-        public void run() {
-            while (true) {
-                int resultN = nativeClientReceive(clientIds, eventIds, events, 100000.0 /*seconds*/);
-                for (int i = 0; i < resultN; i++) {
-                    processResult(clientIds[i], eventIds[i], events[i]);
-                    events[i] = null;
-                }
-            }
-        }
-
-        private void processResult(int clientId, long id, TdApi.Object object) {
-            boolean isClosed = false;
-            if (id == 0 && object instanceof TdApi.UpdateAuthorizationState) {
-                TdApi.AuthorizationState authorizationState = ((TdApi.UpdateAuthorizationState) object).authorizationState;
-                if (authorizationState instanceof TdApi.AuthorizationStateClosed) {
-                    isClosed = true;
-                }
-            }
-
-            Handler handler = id == 0 ? updateHandlers.get(clientId) : handlers.remove(id);
-            if (handler != null) {
-                try {
-                    handler.resultHandler.onResult(object);
-                } catch (Throwable cause) {
-                    ExceptionHandler exceptionHandler = handler.exceptionHandler;
-                    if (exceptionHandler == null) {
-                        exceptionHandler = defaultExceptionHandlers.get(clientId);
-                    }
-                    if (exceptionHandler != null) {
-                        try {
-                            exceptionHandler.onException(cause);
-                        } catch (Throwable ignored) {
-                        }
-                    }
-                }
-            }
-
-            if (isClosed) {
-                updateHandlers.remove(clientId);           // there will be no more updates
-                defaultExceptionHandlers.remove(clientId); // ignore further exceptions
-                clientCount.decrementAndGet();
-            }
-        }
-
-        private static final int MAX_EVENTS = 1000;
-        private final int[] clientIds = new int[MAX_EVENTS];
-        private final long[] eventIds = new long[MAX_EVENTS];
-        private final TdApi.Object[] events = new TdApi.Object[MAX_EVENTS];
-    }
-
-    private final int nativeClientId;
-
-    private static final ConcurrentHashMap<Integer, ExceptionHandler> defaultExceptionHandlers = new ConcurrentHashMap<Integer, ExceptionHandler>();
-    private static final ConcurrentHashMap<Integer, Handler> updateHandlers = new ConcurrentHashMap<Integer, Handler>();
-    private static final ConcurrentHashMap<Long, Handler> handlers = new ConcurrentHashMap<Long, Handler>();
-    private static final AtomicLong currentQueryId = new AtomicLong();
-    private static final AtomicLong clientCount = new AtomicLong();
-
-    private static final ResponseReceiver responseReceiver = new ResponseReceiver();
-
-    private static class Handler {
-        final ResultHandler resultHandler;
-        final ExceptionHandler exceptionHandler;
-
-        Handler(ResultHandler resultHandler, ExceptionHandler exceptionHandler) {
-            this.resultHandler = resultHandler;
-            this.exceptionHandler = exceptionHandler;
-        }
-    }
-
-    private Client(ResultHandler updateHandler, ExceptionHandler updateExceptionHandler, ExceptionHandler defaultExceptionHandler) {
-        clientCount.incrementAndGet();
-        nativeClientId = createNativeClient();
-        if (updateHandler != null) {
-            updateHandlers.put(nativeClientId, new Handler(updateHandler, updateExceptionHandler));
-        }
-        if (defaultExceptionHandler != null) {
-            defaultExceptionHandlers.put(nativeClientId, defaultExceptionHandler);
-        }
-        send(new TdApi.GetOption("version"), null, null);
-    }
-
-    private static native int createNativeClient();
-
-    private static native void nativeClientSend(int nativeClientId, long eventId, TdApi.Function function);
-
-    private static native int nativeClientReceive(int[] clientIds, long[] eventIds, TdApi.Object[] events, double timeout);
-
-    private static native TdApi.Object nativeClientExecute(TdApi.Function function);
-
-    private static native void nativeClientSetLogMessageHandler(int maxVerbosityLevel, LogMessageHandler logMessageHandler);
-}
diff --git a/third-party/td/td/example/java/org/drinkless/tdlib/JsonClient.java b/third-party/td/td/example/java/org/drinkless/tdlib/JsonClient.java
deleted file mode 100644
index a808a3c849..0000000000
--- a/third-party/td/td/example/java/org/drinkless/tdlib/JsonClient.java
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-package org.drinkless.tdlib;
-
-/**
- * Main class for interaction with the TDLib using JSON interface.
- */
-public final class JsonClient {
-    static {
-        try {
-            System.loadLibrary("tdjsonjava");
-        } catch (UnsatisfiedLinkError e) {
-            e.printStackTrace();
-        }
-    }
-
-    /**
-     * Returns an opaque identifier of a new TDLib instance.
-     * The TDLib instance will not send updates until the first request is sent to it.
-     * @return Opaque identifier of a new TDLib instance.
-     */
-    public static native int createClientId();
-
-    /**
-     * Sends request to the TDLib client. May be called from any thread.
-     * @param clientId TDLib client identifier.
-     * @param request JSON-serialized request.
-     */
-    public static native void send(int clientId, String request);
-
-    /**
-     * Receives incoming updates and request responses. Must not be called simultaneously from two different threads.
-     * @param timeout The maximum number of seconds allowed for this function to wait for new data.
-     * @return JSON-serialized incoming update or request response. May be null if the timeout expired before new data received.
-     */
-    public static native String receive(double timeout);
-
-    /**
-     * Synchronously executes a TDLib request.
-     * A request can be executed synchronously, only if it is documented with "Can be called synchronously".
-     * @param request JSON-serialized request.
-     * @return JSON-serialized request response. May be null if the request is invalid.
-     */
-    public static native String execute(String request);
-
-    /**
-     * Interface for handler of messages that are added to the internal TDLib log.
-     */
-    public interface LogMessageHandler {
-        /**
-         * Callback called on messages that are added to the internal TDLib log.
-         *
-         * @param verbosityLevel Log verbosity level with which the message was added from -1 up to 1024.
-         *                       If 0, then TDLib will crash as soon as the callback returns.
-         *                       None of the TDLib methods can be called from the callback.
-         * @param message        The message added to the internal TDLib log.
-         */
-        void onLogMessage(int verbosityLevel, String message);
-    }
-
-    /**
-     * Sets the handler for messages that are added to the internal TDLib log.
-     * None of the TDLib methods can be called from the callback.
-     *
-     * @param maxVerbosityLevel The maximum verbosity level of messages for which the callback will be called.
-     * @param logMessageHandler Handler for messages that are added to the internal TDLib log. Pass null to remove the handler.
-     */
-    public static native void setLogMessageHandler(int maxVerbosityLevel, JsonClient.LogMessageHandler logMessageHandler);
-
-    /**
-     * The class can't be instantiated.
-     */
-    private JsonClient() {
-    }
-}
diff --git a/third-party/td/td/example/java/org/drinkless/tdlib/example/Example.java b/third-party/td/td/example/java/org/drinkless/tdlib/example/Example.java
deleted file mode 100644
index 1775cf48b8..0000000000
--- a/third-party/td/td/example/java/org/drinkless/tdlib/example/Example.java
+++ /dev/null
@@ -1,780 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-package org.drinkless.tdlib.example;
-
-import org.drinkless.tdlib.Client;
-import org.drinkless.tdlib.TdApi;
-
-import java.io.BufferedReader;
-import java.io.IOError;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.util.NavigableSet;
-import java.util.TreeSet;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-import java.util.concurrent.atomic.AtomicLong;
-import java.util.concurrent.locks.Condition;
-import java.util.concurrent.locks.Lock;
-import java.util.concurrent.locks.ReentrantLock;
-
-/**
- * Example class for TDLib usage from Java.
- */
-public final class Example {
-    private static Client client = null;
-
-    private static TdApi.AuthorizationState authorizationState = null;
-    private static volatile boolean haveAuthorization = false;
-    private static volatile boolean needQuit = false;
-    private static volatile boolean canQuit = false;
-
-    private static final Client.ResultHandler defaultHandler = new DefaultHandler();
-
-    private static final Lock authorizationLock = new ReentrantLock();
-    private static final Condition gotAuthorization = authorizationLock.newCondition();
-
-    private static final ConcurrentMap<Long, TdApi.User> users = new ConcurrentHashMap<Long, TdApi.User>();
-    private static final ConcurrentMap<Long, TdApi.BasicGroup> basicGroups = new ConcurrentHashMap<Long, TdApi.BasicGroup>();
-    private static final ConcurrentMap<Long, TdApi.Supergroup> supergroups = new ConcurrentHashMap<Long, TdApi.Supergroup>();
-    private static final ConcurrentMap<Integer, TdApi.SecretChat> secretChats = new ConcurrentHashMap<Integer, TdApi.SecretChat>();
-
-    private static final ConcurrentMap<Long, TdApi.Chat> chats = new ConcurrentHashMap<Long, TdApi.Chat>();
-    private static final NavigableSet<OrderedChat> mainChatList = new TreeSet<OrderedChat>();
-    private static boolean haveFullMainChatList = false;
-
-    private static final ConcurrentMap<Long, TdApi.UserFullInfo> usersFullInfo = new ConcurrentHashMap<Long, TdApi.UserFullInfo>();
-    private static final ConcurrentMap<Long, TdApi.BasicGroupFullInfo> basicGroupsFullInfo = new ConcurrentHashMap<Long, TdApi.BasicGroupFullInfo>();
-    private static final ConcurrentMap<Long, TdApi.SupergroupFullInfo> supergroupsFullInfo = new ConcurrentHashMap<Long, TdApi.SupergroupFullInfo>();
-
-    private static final String newLine = System.getProperty("line.separator");
-    private static final String commandsLine = "Enter command (gcs - GetChats, gc <chatId> - GetChat, me - GetMe, sm <chatId> <message> - SendMessage, lo - LogOut, q - Quit): ";
-    private static volatile String currentPrompt = null;
-
-    private static void print(String str) {
-        if (currentPrompt != null) {
-            System.out.println("");
-        }
-        System.out.println(str);
-        if (currentPrompt != null) {
-            System.out.print(currentPrompt);
-        }
-    }
-
-    private static void setChatPositions(TdApi.Chat chat, TdApi.ChatPosition[] positions) {
-        synchronized (mainChatList) {
-            synchronized (chat) {
-                for (TdApi.ChatPosition position : chat.positions) {
-                    if (position.list.getConstructor() == TdApi.ChatListMain.CONSTRUCTOR) {
-                        boolean isRemoved = mainChatList.remove(new OrderedChat(chat.id, position));
-                        assert isRemoved;
-                    }
-                }
-
-                chat.positions = positions;
-
-                for (TdApi.ChatPosition position : chat.positions) {
-                    if (position.list.getConstructor() == TdApi.ChatListMain.CONSTRUCTOR) {
-                        boolean isAdded = mainChatList.add(new OrderedChat(chat.id, position));
-                        assert isAdded;
-                    }
-                }
-            }
-        }
-    }
-
-    private static void onAuthorizationStateUpdated(TdApi.AuthorizationState authorizationState) {
-        if (authorizationState != null) {
-            Example.authorizationState = authorizationState;
-        }
-        switch (Example.authorizationState.getConstructor()) {
-            case TdApi.AuthorizationStateWaitTdlibParameters.CONSTRUCTOR:
-                TdApi.SetTdlibParameters request = new TdApi.SetTdlibParameters();
-                request.databaseDirectory = "tdlib";
-                request.useMessageDatabase = true;
-                request.useSecretChats = true;
-                request.apiId = 94575;
-                request.apiHash = "a3406de8d171bb422bb6ddf3bbd800e2";
-                request.systemLanguageCode = "en";
-                request.deviceModel = "Desktop";
-                request.applicationVersion = "1.0";
-
-                client.send(request, new AuthorizationRequestHandler());
-                break;
-            case TdApi.AuthorizationStateWaitPhoneNumber.CONSTRUCTOR: {
-                String phoneNumber = promptString("Please enter phone number: ");
-                client.send(new TdApi.SetAuthenticationPhoneNumber(phoneNumber, null), new AuthorizationRequestHandler());
-                break;
-            }
-            case TdApi.AuthorizationStateWaitOtherDeviceConfirmation.CONSTRUCTOR: {
-                String link = ((TdApi.AuthorizationStateWaitOtherDeviceConfirmation) Example.authorizationState).link;
-                System.out.println("Please confirm this login link on another device: " + link);
-                break;
-            }
-            case TdApi.AuthorizationStateWaitEmailAddress.CONSTRUCTOR: {
-                String emailAddress = promptString("Please enter email address: ");
-                client.send(new TdApi.SetAuthenticationEmailAddress(emailAddress), new AuthorizationRequestHandler());
-                break;
-            }
-            case TdApi.AuthorizationStateWaitEmailCode.CONSTRUCTOR: {
-                String code = promptString("Please enter email authentication code: ");
-                client.send(new TdApi.CheckAuthenticationEmailCode(new TdApi.EmailAddressAuthenticationCode(code)), new AuthorizationRequestHandler());
-                break;
-            }
-            case TdApi.AuthorizationStateWaitCode.CONSTRUCTOR: {
-                String code = promptString("Please enter authentication code: ");
-                client.send(new TdApi.CheckAuthenticationCode(code), new AuthorizationRequestHandler());
-                break;
-            }
-            case TdApi.AuthorizationStateWaitRegistration.CONSTRUCTOR: {
-                String firstName = promptString("Please enter your first name: ");
-                String lastName = promptString("Please enter your last name: ");
-                client.send(new TdApi.RegisterUser(firstName, lastName, false), new AuthorizationRequestHandler());
-                break;
-            }
-            case TdApi.AuthorizationStateWaitPassword.CONSTRUCTOR: {
-                String password = promptString("Please enter password: ");
-                client.send(new TdApi.CheckAuthenticationPassword(password), new AuthorizationRequestHandler());
-                break;
-            }
-            case TdApi.AuthorizationStateReady.CONSTRUCTOR:
-                haveAuthorization = true;
-                authorizationLock.lock();
-                try {
-                    gotAuthorization.signal();
-                } finally {
-                    authorizationLock.unlock();
-                }
-                break;
-            case TdApi.AuthorizationStateLoggingOut.CONSTRUCTOR:
-                haveAuthorization = false;
-                print("Logging out");
-                break;
-            case TdApi.AuthorizationStateClosing.CONSTRUCTOR:
-                haveAuthorization = false;
-                print("Closing");
-                break;
-            case TdApi.AuthorizationStateClosed.CONSTRUCTOR:
-                print("Closed");
-                if (!needQuit) {
-                    client = Client.create(new UpdateHandler(), null, null); // recreate client after previous has closed
-                } else {
-                    canQuit = true;
-                }
-                break;
-            default:
-                System.err.println("Unsupported authorization state:" + newLine + Example.authorizationState);
-        }
-    }
-
-    private static int toInt(String arg) {
-        int result = 0;
-        try {
-            result = Integer.parseInt(arg);
-        } catch (NumberFormatException ignored) {
-        }
-        return result;
-    }
-
-    private static long getChatId(String arg) {
-        long chatId = 0;
-        try {
-            chatId = Long.parseLong(arg);
-        } catch (NumberFormatException ignored) {
-        }
-        return chatId;
-    }
-
-    private static String promptString(String prompt) {
-        System.out.print(prompt);
-        currentPrompt = prompt;
-        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
-        String str = "";
-        try {
-            str = reader.readLine();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        currentPrompt = null;
-        return str;
-    }
-
-    private static void getCommand() {
-        String command = promptString(commandsLine);
-        String[] commands = command.split(" ", 2);
-        try {
-            switch (commands[0]) {
-                case "gcs": {
-                    int limit = 20;
-                    if (commands.length > 1) {
-                        limit = toInt(commands[1]);
-                    }
-                    getMainChatList(limit);
-                    break;
-                }
-                case "gc":
-                    client.send(new TdApi.GetChat(getChatId(commands[1])), defaultHandler);
-                    break;
-                case "me":
-                    client.send(new TdApi.GetMe(), defaultHandler);
-                    break;
-                case "sm": {
-                    String[] args = commands[1].split(" ", 2);
-                    sendMessage(getChatId(args[0]), args[1]);
-                    break;
-                }
-                case "lo":
-                    haveAuthorization = false;
-                    client.send(new TdApi.LogOut(), defaultHandler);
-                    break;
-                case "q":
-                    needQuit = true;
-                    haveAuthorization = false;
-                    client.send(new TdApi.Close(), defaultHandler);
-                    break;
-                default:
-                    System.err.println("Unsupported command: " + command);
-            }
-        } catch (ArrayIndexOutOfBoundsException e) {
-            print("Not enough arguments");
-        }
-    }
-
-    private static void getMainChatList(final int limit) {
-        synchronized (mainChatList) {
-            if (!haveFullMainChatList && limit > mainChatList.size()) {
-                // send LoadChats request if there are some unknown chats and have not enough known chats
-                client.send(new TdApi.LoadChats(new TdApi.ChatListMain(), limit - mainChatList.size()), new Client.ResultHandler() {
-                    @Override
-                    public void onResult(TdApi.Object object) {
-                        switch (object.getConstructor()) {
-                            case TdApi.Error.CONSTRUCTOR:
-                                if (((TdApi.Error) object).code == 404) {
-                                    synchronized (mainChatList) {
-                                        haveFullMainChatList = true;
-                                    }
-                                } else {
-                                    System.err.println("Receive an error for LoadChats:" + newLine + object);
-                                }
-                                break;
-                            case TdApi.Ok.CONSTRUCTOR:
-                                // chats had already been received through updates, let's retry request
-                                getMainChatList(limit);
-                                break;
-                            default:
-                                System.err.println("Receive wrong response from TDLib:" + newLine + object);
-                        }
-                    }
-                });
-                return;
-            }
-
-            java.util.Iterator<OrderedChat> iter = mainChatList.iterator();
-            System.out.println();
-            System.out.println("First " + limit + " chat(s) out of " + mainChatList.size() + " known chat(s):");
-            for (int i = 0; i < limit && i < mainChatList.size(); i++) {
-                long chatId = iter.next().chatId;
-                TdApi.Chat chat = chats.get(chatId);
-                synchronized (chat) {
-                    System.out.println(chatId + ": " + chat.title);
-                }
-            }
-            print("");
-        }
-    }
-
-    private static void sendMessage(long chatId, String message) {
-        // initialize reply markup just for testing
-        TdApi.InlineKeyboardButton[] row = {new TdApi.InlineKeyboardButton("https://telegram.org?1", new TdApi.InlineKeyboardButtonTypeUrl()), new TdApi.InlineKeyboardButton("https://telegram.org?2", new TdApi.InlineKeyboardButtonTypeUrl()), new TdApi.InlineKeyboardButton("https://telegram.org?3", new TdApi.InlineKeyboardButtonTypeUrl())};
-        TdApi.ReplyMarkup replyMarkup = new TdApi.ReplyMarkupInlineKeyboard(new TdApi.InlineKeyboardButton[][]{row, row, row});
-
-        TdApi.InputMessageContent content = new TdApi.InputMessageText(new TdApi.FormattedText(message, null), null, true);
-        client.send(new TdApi.SendMessage(chatId, 0, null, null, replyMarkup, content), defaultHandler);
-    }
-
-    public static void main(String[] args) throws InterruptedException {
-        // set log message handler to handle only fatal errors (0) and plain log messages (-1)
-        Client.setLogMessageHandler(0, new LogMessageHandler());
-
-        // disable TDLib log and redirect fatal errors and plain log messages to a file
-        try {
-            Client.execute(new TdApi.SetLogVerbosityLevel(0));
-            Client.execute(new TdApi.SetLogStream(new TdApi.LogStreamFile("tdlib.log", 1 << 27, false)));
-        } catch (Client.ExecutionException error) {
-            throw new IOError(new IOException("Write access to the current directory is required"));
-        }
-
-        // create client
-        client = Client.create(new UpdateHandler(), null, null);
-
-        // main loop
-        while (!needQuit) {
-            // await authorization
-            authorizationLock.lock();
-            try {
-                while (!haveAuthorization) {
-                    gotAuthorization.await();
-                }
-            } finally {
-                authorizationLock.unlock();
-            }
-
-            while (haveAuthorization) {
-                getCommand();
-            }
-        }
-        while (!canQuit) {
-            Thread.sleep(1);
-        }
-    }
-
-    private static class OrderedChat implements Comparable<OrderedChat> {
-        final long chatId;
-        final TdApi.ChatPosition position;
-
-        OrderedChat(long chatId, TdApi.ChatPosition position) {
-            this.chatId = chatId;
-            this.position = position;
-        }
-
-        @Override
-        public int compareTo(OrderedChat o) {
-            if (this.position.order != o.position.order) {
-                return o.position.order < this.position.order ? -1 : 1;
-            }
-            if (this.chatId != o.chatId) {
-                return o.chatId < this.chatId ? -1 : 1;
-            }
-            return 0;
-        }
-
-        @Override
-        public boolean equals(Object obj) {
-            OrderedChat o = (OrderedChat) obj;
-            return this.chatId == o.chatId && this.position.order == o.position.order;
-        }
-    }
-
-    private static class DefaultHandler implements Client.ResultHandler {
-        @Override
-        public void onResult(TdApi.Object object) {
-            print(object.toString());
-        }
-    }
-
-    private static class UpdateHandler implements Client.ResultHandler {
-        @Override
-        public void onResult(TdApi.Object object) {
-            switch (object.getConstructor()) {
-                case TdApi.UpdateAuthorizationState.CONSTRUCTOR:
-                    onAuthorizationStateUpdated(((TdApi.UpdateAuthorizationState) object).authorizationState);
-                    break;
-
-                case TdApi.UpdateUser.CONSTRUCTOR:
-                    TdApi.UpdateUser updateUser = (TdApi.UpdateUser) object;
-                    users.put(updateUser.user.id, updateUser.user);
-                    break;
-                case TdApi.UpdateUserStatus.CONSTRUCTOR: {
-                    TdApi.UpdateUserStatus updateUserStatus = (TdApi.UpdateUserStatus) object;
-                    TdApi.User user = users.get(updateUserStatus.userId);
-                    synchronized (user) {
-                        user.status = updateUserStatus.status;
-                    }
-                    break;
-                }
-                case TdApi.UpdateBasicGroup.CONSTRUCTOR:
-                    TdApi.UpdateBasicGroup updateBasicGroup = (TdApi.UpdateBasicGroup) object;
-                    basicGroups.put(updateBasicGroup.basicGroup.id, updateBasicGroup.basicGroup);
-                    break;
-                case TdApi.UpdateSupergroup.CONSTRUCTOR:
-                    TdApi.UpdateSupergroup updateSupergroup = (TdApi.UpdateSupergroup) object;
-                    supergroups.put(updateSupergroup.supergroup.id, updateSupergroup.supergroup);
-                    break;
-                case TdApi.UpdateSecretChat.CONSTRUCTOR:
-                    TdApi.UpdateSecretChat updateSecretChat = (TdApi.UpdateSecretChat) object;
-                    secretChats.put(updateSecretChat.secretChat.id, updateSecretChat.secretChat);
-                    break;
-
-                case TdApi.UpdateNewChat.CONSTRUCTOR: {
-                    TdApi.UpdateNewChat updateNewChat = (TdApi.UpdateNewChat) object;
-                    TdApi.Chat chat = updateNewChat.chat;
-                    synchronized (chat) {
-                        chats.put(chat.id, chat);
-
-                        TdApi.ChatPosition[] positions = chat.positions;
-                        chat.positions = new TdApi.ChatPosition[0];
-                        setChatPositions(chat, positions);
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatTitle.CONSTRUCTOR: {
-                    TdApi.UpdateChatTitle updateChat = (TdApi.UpdateChatTitle) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.title = updateChat.title;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatPhoto.CONSTRUCTOR: {
-                    TdApi.UpdateChatPhoto updateChat = (TdApi.UpdateChatPhoto) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.photo = updateChat.photo;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatPermissions.CONSTRUCTOR: {
-                    TdApi.UpdateChatPermissions update = (TdApi.UpdateChatPermissions) object;
-                    TdApi.Chat chat = chats.get(update.chatId);
-                    synchronized (chat) {
-                        chat.permissions = update.permissions;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatLastMessage.CONSTRUCTOR: {
-                    TdApi.UpdateChatLastMessage updateChat = (TdApi.UpdateChatLastMessage) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.lastMessage = updateChat.lastMessage;
-                        setChatPositions(chat, updateChat.positions);
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatPosition.CONSTRUCTOR: {
-                    TdApi.UpdateChatPosition updateChat = (TdApi.UpdateChatPosition) object;
-                    if (updateChat.position.list.getConstructor() != TdApi.ChatListMain.CONSTRUCTOR) {
-                        break;
-                    }
-
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        int i;
-                        for (i = 0; i < chat.positions.length; i++) {
-                            if (chat.positions[i].list.getConstructor() == TdApi.ChatListMain.CONSTRUCTOR) {
-                                break;
-                            }
-                        }
-                        TdApi.ChatPosition[] new_positions = new TdApi.ChatPosition[chat.positions.length + (updateChat.position.order == 0 ? 0 : 1) - (i < chat.positions.length ? 1 : 0)];
-                        int pos = 0;
-                        if (updateChat.position.order != 0) {
-                            new_positions[pos++] = updateChat.position;
-                        }
-                        for (int j = 0; j < chat.positions.length; j++) {
-                            if (j != i) {
-                                new_positions[pos++] = chat.positions[j];
-                            }
-                        }
-                        assert pos == new_positions.length;
-
-                        setChatPositions(chat, new_positions);
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatReadInbox.CONSTRUCTOR: {
-                    TdApi.UpdateChatReadInbox updateChat = (TdApi.UpdateChatReadInbox) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.lastReadInboxMessageId = updateChat.lastReadInboxMessageId;
-                        chat.unreadCount = updateChat.unreadCount;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatReadOutbox.CONSTRUCTOR: {
-                    TdApi.UpdateChatReadOutbox updateChat = (TdApi.UpdateChatReadOutbox) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.lastReadOutboxMessageId = updateChat.lastReadOutboxMessageId;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatActionBar.CONSTRUCTOR: {
-                    TdApi.UpdateChatActionBar updateChat = (TdApi.UpdateChatActionBar) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.actionBar = updateChat.actionBar;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatAvailableReactions.CONSTRUCTOR: {
-                    TdApi.UpdateChatAvailableReactions updateChat = (TdApi.UpdateChatAvailableReactions) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.availableReactions = updateChat.availableReactions;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatDraftMessage.CONSTRUCTOR: {
-                    TdApi.UpdateChatDraftMessage updateChat = (TdApi.UpdateChatDraftMessage) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.draftMessage = updateChat.draftMessage;
-                        setChatPositions(chat, updateChat.positions);
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatMessageSender.CONSTRUCTOR: {
-                    TdApi.UpdateChatMessageSender updateChat = (TdApi.UpdateChatMessageSender) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.messageSenderId = updateChat.messageSenderId;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatMessageAutoDeleteTime.CONSTRUCTOR: {
-                    TdApi.UpdateChatMessageAutoDeleteTime updateChat = (TdApi.UpdateChatMessageAutoDeleteTime) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.messageAutoDeleteTime = updateChat.messageAutoDeleteTime;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatNotificationSettings.CONSTRUCTOR: {
-                    TdApi.UpdateChatNotificationSettings update = (TdApi.UpdateChatNotificationSettings) object;
-                    TdApi.Chat chat = chats.get(update.chatId);
-                    synchronized (chat) {
-                        chat.notificationSettings = update.notificationSettings;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatPendingJoinRequests.CONSTRUCTOR: {
-                    TdApi.UpdateChatPendingJoinRequests update = (TdApi.UpdateChatPendingJoinRequests) object;
-                    TdApi.Chat chat = chats.get(update.chatId);
-                    synchronized (chat) {
-                        chat.pendingJoinRequests = update.pendingJoinRequests;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatReplyMarkup.CONSTRUCTOR: {
-                    TdApi.UpdateChatReplyMarkup updateChat = (TdApi.UpdateChatReplyMarkup) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.replyMarkupMessageId = updateChat.replyMarkupMessageId;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatBackground.CONSTRUCTOR: {
-                    TdApi.UpdateChatBackground updateChat = (TdApi.UpdateChatBackground) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.background = updateChat.background;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatTheme.CONSTRUCTOR: {
-                    TdApi.UpdateChatTheme updateChat = (TdApi.UpdateChatTheme) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.themeName = updateChat.themeName;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatUnreadMentionCount.CONSTRUCTOR: {
-                    TdApi.UpdateChatUnreadMentionCount updateChat = (TdApi.UpdateChatUnreadMentionCount) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.unreadMentionCount = updateChat.unreadMentionCount;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatUnreadReactionCount.CONSTRUCTOR: {
-                    TdApi.UpdateChatUnreadReactionCount updateChat = (TdApi.UpdateChatUnreadReactionCount) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.unreadReactionCount = updateChat.unreadReactionCount;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatVideoChat.CONSTRUCTOR: {
-                    TdApi.UpdateChatVideoChat updateChat = (TdApi.UpdateChatVideoChat) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.videoChat = updateChat.videoChat;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatDefaultDisableNotification.CONSTRUCTOR: {
-                    TdApi.UpdateChatDefaultDisableNotification update = (TdApi.UpdateChatDefaultDisableNotification) object;
-                    TdApi.Chat chat = chats.get(update.chatId);
-                    synchronized (chat) {
-                        chat.defaultDisableNotification = update.defaultDisableNotification;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatHasProtectedContent.CONSTRUCTOR: {
-                    TdApi.UpdateChatHasProtectedContent updateChat = (TdApi.UpdateChatHasProtectedContent) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.hasProtectedContent = updateChat.hasProtectedContent;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatIsTranslatable.CONSTRUCTOR: {
-                    TdApi.UpdateChatIsTranslatable update = (TdApi.UpdateChatIsTranslatable) object;
-                    TdApi.Chat chat = chats.get(update.chatId);
-                    synchronized (chat) {
-                        chat.isTranslatable = update.isTranslatable;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatIsMarkedAsUnread.CONSTRUCTOR: {
-                    TdApi.UpdateChatIsMarkedAsUnread update = (TdApi.UpdateChatIsMarkedAsUnread) object;
-                    TdApi.Chat chat = chats.get(update.chatId);
-                    synchronized (chat) {
-                        chat.isMarkedAsUnread = update.isMarkedAsUnread;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatBlockList.CONSTRUCTOR: {
-                    TdApi.UpdateChatBlockList update = (TdApi.UpdateChatBlockList) object;
-                    TdApi.Chat chat = chats.get(update.chatId);
-                    synchronized (chat) {
-                        chat.blockList = update.blockList;
-                    }
-                    break;
-                }
-                case TdApi.UpdateChatHasScheduledMessages.CONSTRUCTOR: {
-                    TdApi.UpdateChatHasScheduledMessages update = (TdApi.UpdateChatHasScheduledMessages) object;
-                    TdApi.Chat chat = chats.get(update.chatId);
-                    synchronized (chat) {
-                        chat.hasScheduledMessages = update.hasScheduledMessages;
-                    }
-                    break;
-                }
-
-                case TdApi.UpdateMessageMentionRead.CONSTRUCTOR: {
-                    TdApi.UpdateMessageMentionRead updateChat = (TdApi.UpdateMessageMentionRead) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.unreadMentionCount = updateChat.unreadMentionCount;
-                    }
-                    break;
-                }
-                case TdApi.UpdateMessageUnreadReactions.CONSTRUCTOR: {
-                    TdApi.UpdateMessageUnreadReactions updateChat = (TdApi.UpdateMessageUnreadReactions) object;
-                    TdApi.Chat chat = chats.get(updateChat.chatId);
-                    synchronized (chat) {
-                        chat.unreadReactionCount = updateChat.unreadReactionCount;
-                    }
-                    break;
-                }
-
-                case TdApi.UpdateUserFullInfo.CONSTRUCTOR:
-                    TdApi.UpdateUserFullInfo updateUserFullInfo = (TdApi.UpdateUserFullInfo) object;
-                    usersFullInfo.put(updateUserFullInfo.userId, updateUserFullInfo.userFullInfo);
-                    break;
-                case TdApi.UpdateBasicGroupFullInfo.CONSTRUCTOR:
-                    TdApi.UpdateBasicGroupFullInfo updateBasicGroupFullInfo = (TdApi.UpdateBasicGroupFullInfo) object;
-                    basicGroupsFullInfo.put(updateBasicGroupFullInfo.basicGroupId, updateBasicGroupFullInfo.basicGroupFullInfo);
-                    break;
-                case TdApi.UpdateSupergroupFullInfo.CONSTRUCTOR:
-                    TdApi.UpdateSupergroupFullInfo updateSupergroupFullInfo = (TdApi.UpdateSupergroupFullInfo) object;
-                    supergroupsFullInfo.put(updateSupergroupFullInfo.supergroupId, updateSupergroupFullInfo.supergroupFullInfo);
-                    break;
-                default:
-                    // print("Unsupported update:" + newLine + object);
-            }
-        }
-    }
-
-    private static class AuthorizationRequestHandler implements Client.ResultHandler {
-        @Override
-        public void onResult(TdApi.Object object) {
-            switch (object.getConstructor()) {
-                case TdApi.Error.CONSTRUCTOR:
-                    System.err.println("Receive an error:" + newLine + object);
-                    onAuthorizationStateUpdated(null); // repeat last action
-                    break;
-                case TdApi.Ok.CONSTRUCTOR:
-                    // result is already received through UpdateAuthorizationState, nothing to do
-                    break;
-                default:
-                    System.err.println("Receive wrong response from TDLib:" + newLine + object);
-            }
-        }
-    }
-
-    private static class LogMessageHandler implements Client.LogMessageHandler {
-        @Override
-        public void onLogMessage(int verbosityLevel, String message) {
-            if (verbosityLevel == 0) {
-                onFatalError(message);
-                return;
-            }
-            System.err.println(message);
-        }
-    }
-
-    private static void onFatalError(String errorMessage) {
-        final class ThrowError implements Runnable {
-            private final String errorMessage;
-            private final AtomicLong errorThrowTime;
-
-            private ThrowError(String errorMessage, AtomicLong errorThrowTime) {
-                this.errorMessage = errorMessage;
-                this.errorThrowTime = errorThrowTime;
-            }
-
-            @Override
-            public void run() {
-                if (isDatabaseBrokenError(errorMessage) || isDiskFullError(errorMessage) || isDiskError(errorMessage)) {
-                    processExternalError();
-                    return;
-                }
-
-                errorThrowTime.set(System.currentTimeMillis());
-                throw new ClientError("TDLib fatal error: " + errorMessage);
-            }
-
-            private void processExternalError() {
-                errorThrowTime.set(System.currentTimeMillis());
-                throw new ExternalClientError("Fatal error: " + errorMessage);
-            }
-
-            final class ClientError extends Error {
-                private ClientError(String message) {
-                    super(message);
-                }
-            }
-
-            final class ExternalClientError extends Error {
-                public ExternalClientError(String message) {
-                    super(message);
-                }
-            }
-
-            private boolean isDatabaseBrokenError(String message) {
-                return message.contains("Wrong key or database is corrupted") ||
-                        message.contains("SQL logic error or missing database") ||
-                        message.contains("database disk image is malformed") ||
-                        message.contains("file is encrypted or is not a database") ||
-                        message.contains("unsupported file format") ||
-                        message.contains("Database was corrupted and deleted during execution and can't be recreated");
-            }
-
-            private boolean isDiskFullError(String message) {
-                return message.contains("PosixError : No space left on device") ||
-                        message.contains("database or disk is full");
-            }
-
-            private boolean isDiskError(String message) {
-                return message.contains("I/O error") || message.contains("Structure needs cleaning");
-            }
-        }
-
-        final AtomicLong errorThrowTime = new AtomicLong(Long.MAX_VALUE);
-        new Thread(new ThrowError(errorMessage, errorThrowTime), "TDLib fatal error thread").start();
-
-        // wait at least 10 seconds after the error is thrown
-        while (errorThrowTime.get() >= System.currentTimeMillis() - 10000) {
-            try {
-                Thread.sleep(1000 /* milliseconds */);
-            } catch (InterruptedException ignore) {
-                Thread.currentThread().interrupt();
-            }
-        }
-    }
-}
diff --git a/third-party/td/td/example/java/org/drinkless/tdlib/example/JsonExample.java b/third-party/td/td/example/java/org/drinkless/tdlib/example/JsonExample.java
deleted file mode 100644
index f967bded11..0000000000
--- a/third-party/td/td/example/java/org/drinkless/tdlib/example/JsonExample.java
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-package org.drinkless.tdlib.example;
-
-import org.drinkless.tdlib.JsonClient;
-
-/**
- * Example class for TDLib usage from Java using JSON interface.
- */
-public final class JsonExample {
-    public static void main(String[] args) throws InterruptedException {
-        // set log message handler to handle only fatal errors (0) and plain log messages (-1)
-        JsonClient.setLogMessageHandler(0, new LogMessageHandler());
-
-        // disable TDLib log and redirect fatal errors and plain log messages to a file
-        JsonClient.execute("{\"@type\":\"setLogVerbosityLevel\",\"new_verbosity_level\":0}");
-        JsonClient.execute("{\"@type\":\"setLogStream\",\"log_stream\":{\"@type\":\"logStreamFile\",\"path\":\"tdlib.log\",\"max_file_size\":128000000}}");
-
-        // create client identifier
-        int clientId = JsonClient.createClientId();
-
-        // send first request to activate the client
-        JsonClient.send(clientId, "{\"@type\":\"getOption\",\"name\":\"version\"}");
-
-        // main loop
-        while (true) {
-            String result = JsonClient.receive(100.0);
-            if (result != null) {
-                System.out.println(result);
-            }
-        }
-    }
-
-    private static class LogMessageHandler implements JsonClient.LogMessageHandler {
-        @Override
-        public void onLogMessage(int verbosityLevel, String message) {
-            System.err.print(message);
-            if (verbosityLevel == 0) {
-                System.err.println("Receive fatal error; the process will crash now");
-            }
-        }
-    }
-}
diff --git a/third-party/td/td/example/java/td_jni.cpp b/third-party/td/td/example/java/td_jni.cpp
deleted file mode 100644
index 845011aeeb..0000000000
--- a/third-party/td/td/example/java/td_jni.cpp
+++ /dev/null
@@ -1,241 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#ifdef TD_JSON_JAVA
-#include <td/telegram/td_json_client.h>
-#else
-#include <td/telegram/Client.h>
-#include <td/telegram/td_api.h>
-#endif
-
-#include <td/tl/tl_jni_object.h>
-
-#include <cstdint>
-#include <cstdlib>
-#include <string>
-#include <utility>
-
-namespace td_jni {
-
-#ifdef TD_JSON_JAVA
-static jint JsonClient_createClientId(JNIEnv *env, jclass clazz) {
-  return static_cast<jint>(td_create_client_id());
-}
-
-static void JsonClient_send(JNIEnv *env, jclass clazz, jint client_id, jstring request) {
-  td_send(static_cast<int>(client_id), td::jni::from_jstring(env, request).c_str());
-}
-
-static jstring JsonClient_receive(JNIEnv *env, jclass clazz, jdouble timeout) {
-  auto result = td_receive(timeout);
-  if (result == nullptr) {
-    return nullptr;
-  }
-  return td::jni::to_jstring(env, result);
-}
-
-static jstring JsonClient_execute(JNIEnv *env, jclass clazz, jstring request) {
-  auto result = td_execute(td::jni::from_jstring(env, request).c_str());
-  if (result == nullptr) {
-    return nullptr;
-  }
-  return td::jni::to_jstring(env, result);
-}
-#else
-static td::td_api::object_ptr<td::td_api::Function> fetch_function(JNIEnv *env, jobject function) {
-  td::jni::reset_parse_error();
-  auto result = td::td_api::Function::fetch(env, function);
-  if (td::jni::have_parse_error()) {
-    std::abort();
-  }
-  return result;
-}
-
-static td::ClientManager *get_manager() {
-  return td::ClientManager::get_manager_singleton();
-}
-
-static jint Client_createNativeClient(JNIEnv *env, jclass clazz) {
-  return static_cast<jint>(get_manager()->create_client_id());
-}
-
-static void Client_nativeClientSend(JNIEnv *env, jclass clazz, jint client_id, jlong id, jobject function) {
-  get_manager()->send(static_cast<std::int32_t>(client_id), static_cast<std::uint64_t>(id),
-                      fetch_function(env, function));
-}
-
-static jint Client_nativeClientReceive(JNIEnv *env, jclass clazz, jintArray client_ids, jlongArray ids,
-                                       jobjectArray events, jdouble timeout) {
-  jsize events_size = env->GetArrayLength(ids);  // client_ids, ids and events must be of equal size
-  if (events_size == 0) {
-    return 0;
-  }
-  jsize result_size = 0;
-
-  auto *manager = get_manager();
-  auto response = manager->receive(timeout);
-  while (response.object) {
-    auto client_id = static_cast<jint>(response.client_id);
-    env->SetIntArrayRegion(client_ids, result_size, 1, &client_id);
-
-    auto request_id = static_cast<jlong>(response.request_id);
-    env->SetLongArrayRegion(ids, result_size, 1, &request_id);
-
-    jobject object;
-    response.object->store(env, object);
-    env->SetObjectArrayElement(events, result_size, object);
-    env->DeleteLocalRef(object);
-
-    result_size++;
-    if (result_size == events_size) {
-      break;
-    }
-
-    response = manager->receive(0);
-  }
-  return result_size;
-}
-
-static jobject Client_nativeClientExecute(JNIEnv *env, jclass clazz, jobject function) {
-  jobject result;
-  td::ClientManager::execute(fetch_function(env, function))->store(env, result);
-  return result;
-}
-
-static jstring Object_toString(JNIEnv *env, jobject object) {
-  return td::jni::to_jstring(env, to_string(td::td_api::Object::fetch(env, object)));
-}
-
-static jstring Function_toString(JNIEnv *env, jobject object) {
-  return td::jni::to_jstring(env, to_string(td::td_api::Function::fetch(env, object)));
-}
-#endif
-
-static constexpr jint JAVA_VERSION = JNI_VERSION_1_6;
-static JavaVM *java_vm;
-static jobject log_message_handler;
-
-static void on_log_message(int verbosity_level, const char *log_message) {
-  auto env = td::jni::get_jni_env(java_vm, JAVA_VERSION);
-  if (env == nullptr) {
-    return;
-  }
-
-  jobject handler = env->NewLocalRef(log_message_handler);
-  if (!handler) {
-    return;
-  }
-
-  jclass handler_class = env->GetObjectClass(handler);
-  if (handler_class) {
-    jmethodID on_log_message_method = env->GetMethodID(handler_class, "onLogMessage", "(ILjava/lang/String;)V");
-    if (on_log_message_method) {
-      jstring log_message_str = td::jni::to_jstring(env.get(), log_message);
-      if (log_message_str) {
-        env->CallVoidMethod(handler, on_log_message_method, static_cast<jint>(verbosity_level), log_message_str);
-        env->DeleteLocalRef((jobject)log_message_str);
-      }
-    }
-    env->DeleteLocalRef((jobject)handler_class);
-  }
-
-  env->DeleteLocalRef(handler);
-}
-
-static void Client_nativeClientSetLogMessageHandler(JNIEnv *env, jclass clazz, jint max_verbosity_level,
-                                                    jobject new_log_message_handler) {
-  if (log_message_handler) {
-#ifdef TD_JSON_JAVA
-    td_set_log_message_callback(0, nullptr);
-#else
-    td::ClientManager::set_log_message_callback(0, nullptr);
-#endif
-    jobject old_log_message_handler = log_message_handler;
-    log_message_handler = jobject();
-    env->DeleteGlobalRef(old_log_message_handler);
-  }
-
-  if (new_log_message_handler) {
-    log_message_handler = env->NewGlobalRef(new_log_message_handler);
-    if (!log_message_handler) {
-      // out of memory
-      return;
-    }
-
-#ifdef TD_JSON_JAVA
-    td_set_log_message_callback(static_cast<int>(max_verbosity_level), on_log_message);
-#else
-    td::ClientManager::set_log_message_callback(static_cast<int>(max_verbosity_level), on_log_message);
-#endif
-  }
-}
-
-static jint register_native(JavaVM *vm) {
-  JNIEnv *env;
-  if (vm->GetEnv(reinterpret_cast<void **>(&env), JAVA_VERSION) != JNI_OK) {
-    return -1;
-  }
-
-  java_vm = vm;
-
-  auto register_method = [env](jclass clazz, std::string name, std::string signature, auto function_ptr) {
-    td::jni::register_native_method(env, clazz, std::move(name), std::move(signature),
-                                    reinterpret_cast<void *>(function_ptr));
-  };
-
-#ifdef TD_JSON_JAVA
-  auto client_class = td::jni::get_jclass(env, PACKAGE_NAME "/JsonClient");
-
-  register_method(client_class, "createClientId", "()I", JsonClient_createClientId);
-  register_method(client_class, "send", "(ILjava/lang/String;)V", JsonClient_send);
-  register_method(client_class, "receive", "(D)Ljava/lang/String;", JsonClient_receive);
-  register_method(client_class, "execute", "(Ljava/lang/String;)Ljava/lang/String;", JsonClient_execute);
-  register_method(client_class, "setLogMessageHandler", "(IL" PACKAGE_NAME "/JsonClient$LogMessageHandler;)V",
-                  Client_nativeClientSetLogMessageHandler);
-#else
-  auto td_api_class = td::jni::get_jclass(env, PACKAGE_NAME "/TdApi");
-  jfieldID commit_hash_field_id =
-      td::jni::get_static_field_id(env, td_api_class, "GIT_COMMIT_HASH", "Ljava/lang/String;");
-  std::string td_api_version = td::jni::fetch_static_string(env, td_api_class, commit_hash_field_id);
-  std::string tdjni_version = td::td_api::get_git_commit_hash();
-  if (tdjni_version != td_api_version) {
-    td::jni::set_fatal_error(env, "Mismatched TdApi.java (" + td_api_version + ") and tdjni shared library (" +
-                                      tdjni_version + ") versions");
-    return JAVA_VERSION;
-  }
-
-  auto client_class = td::jni::get_jclass(env, PACKAGE_NAME "/Client");
-  auto object_class = td::jni::get_jclass(env, PACKAGE_NAME "/TdApi$Object");
-  auto function_class = td::jni::get_jclass(env, PACKAGE_NAME "/TdApi$Function");
-
-#define TD_OBJECT "L" PACKAGE_NAME "/TdApi$Object;"
-#define TD_FUNCTION "L" PACKAGE_NAME "/TdApi$Function;"
-  register_method(client_class, "createNativeClient", "()I", Client_createNativeClient);
-  register_method(client_class, "nativeClientSend", "(IJ" TD_FUNCTION ")V", Client_nativeClientSend);
-  register_method(client_class, "nativeClientReceive", "([I[J[" TD_OBJECT "D)I", Client_nativeClientReceive);
-  register_method(client_class, "nativeClientExecute", "(" TD_FUNCTION ")" TD_OBJECT, Client_nativeClientExecute);
-  register_method(client_class, "nativeClientSetLogMessageHandler", "(IL" PACKAGE_NAME "/Client$LogMessageHandler;)V",
-                  Client_nativeClientSetLogMessageHandler);
-
-  register_method(object_class, "toString", "()Ljava/lang/String;", Object_toString);
-
-  register_method(function_class, "toString", "()Ljava/lang/String;", Function_toString);
-#undef TD_FUNCTION
-#undef TD_OBJECT
-
-  td::jni::init_vars(env, PACKAGE_NAME);
-  td::td_api::get_package_name_ref() = PACKAGE_NAME;
-#endif
-
-  return JAVA_VERSION;
-}
-
-}  // namespace td_jni
-
-JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved) {
-  static jint jni_version = td_jni::register_native(vm);  // call_once
-  return jni_version;
-}
diff --git a/third-party/td/td/example/python/.gitignore b/third-party/td/td/example/python/.gitignore
deleted file mode 100644
index 7eace8207c..0000000000
--- a/third-party/td/td/example/python/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-/td/
-/tdlib/
-/*.dll
\ No newline at end of file
diff --git a/third-party/td/td/example/python/README.md b/third-party/td/td/example/python/README.md
deleted file mode 100644
index 0afb4a70b0..0000000000
--- a/third-party/td/td/example/python/README.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# TDLib Python example
-
-To run this example you need to [build](https://github.com/tdlib/td#building) TDLib and copy built tdjson shared library to this directory.
-
-After this you can run the example:
-```
-python tdjson_example.py
-```
-
-Description of all available classes and methods can be found at [td_json_client](https://core.telegram.org/tdlib/docs/td__json__client_8h.html)
-and [td_api](https://core.telegram.org/tdlib/docs/td__api_8h.html) documentation.
diff --git a/third-party/td/td/example/python/tdjson_example.py b/third-party/td/td/example/python/tdjson_example.py
deleted file mode 100644
index 82a7f3c0ff..0000000000
--- a/third-party/td/td/example/python/tdjson_example.py
+++ /dev/null
@@ -1,145 +0,0 @@
-#
-# Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com),
-# Pellegrino Prevete (pellegrinoprevete@gmail.com)  2014-2025
-#
-# Distributed under the Boost Software License, Version 1.0. (See accompanying
-# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-#
-from ctypes.util import find_library
-from ctypes import *
-import json
-import os
-import sys
-
-# load shared library
-tdjson_path = find_library('tdjson')
-if tdjson_path is None:
-    if os.name == 'nt':
-        tdjson_path = os.path.join(os.path.dirname(__file__), 'tdjson.dll')
-    else:
-        sys.exit("Can't find 'tdjson' library")
-tdjson = CDLL(tdjson_path)
-
-# load TDLib functions from shared library
-_td_create_client_id = tdjson.td_create_client_id
-_td_create_client_id.restype = c_int
-_td_create_client_id.argtypes = []
-
-_td_receive = tdjson.td_receive
-_td_receive.restype = c_char_p
-_td_receive.argtypes = [c_double]
-
-_td_send = tdjson.td_send
-_td_send.restype = None
-_td_send.argtypes = [c_int, c_char_p]
-
-_td_execute = tdjson.td_execute
-_td_execute.restype = c_char_p
-_td_execute.argtypes = [c_char_p]
-
-log_message_callback_type = CFUNCTYPE(None, c_int, c_char_p)
-
-_td_set_log_message_callback = tdjson.td_set_log_message_callback
-_td_set_log_message_callback.restype = None
-_td_set_log_message_callback.argtypes = [c_int, log_message_callback_type]
-
-# initialize TDLib log with desired parameters
-@log_message_callback_type
-def on_log_message_callback(verbosity_level, message):
-    if verbosity_level == 0:
-        sys.exit('TDLib fatal error: %r' % message)
-
-def td_execute(query):
-    query = json.dumps(query).encode('utf-8')
-    result = _td_execute(query)
-    if result:
-        result = json.loads(result.decode('utf-8'))
-    return result
-
-_td_set_log_message_callback(2, on_log_message_callback)
-
-# setting TDLib log verbosity level to 1 (errors)
-print(str(td_execute({'@type': 'setLogVerbosityLevel', 'new_verbosity_level': 1, '@extra': 1.01234})).encode('utf-8'))
-
-
-# create client
-client_id = _td_create_client_id()
-
-# simple wrappers for client usage
-def td_send(query):
-    query = json.dumps(query).encode('utf-8')
-    _td_send(client_id, query)
-
-def td_receive():
-    result = _td_receive(1.0)
-    if result:
-        result = json.loads(result.decode('utf-8'))
-    return result
-
-# another test for TDLib execute method
-print(str(td_execute({'@type': 'getTextEntities', 'text': '@telegram /test_command https://telegram.org telegram.me', '@extra': ['5', 7.0, 'a']})).encode('utf-8'))
-
-# start the client by sending a request to it
-td_send({'@type': 'getOption', 'name': 'version', '@extra': 1.01234})
-
-# main events cycle
-while True:
-    event = td_receive()
-    if event:
-        # process authorization states
-        if event['@type'] == 'updateAuthorizationState':
-            auth_state = event['authorization_state']
-
-            # if client is closed, we need to destroy it and create new client
-            if auth_state['@type'] == 'authorizationStateClosed':
-                break
-
-            # set TDLib parameters
-            # you MUST obtain your own api_id and api_hash at https://my.telegram.org
-            # and use them in the setTdlibParameters call
-            if auth_state['@type'] == 'authorizationStateWaitTdlibParameters':
-                td_send({'@type': 'setTdlibParameters',
-                         'database_directory': 'tdlib',
-                         'use_message_database': True,
-                         'use_secret_chats': True,
-                         'api_id': 94575,
-                         'api_hash': 'a3406de8d171bb422bb6ddf3bbd800e2',
-                         'system_language_code': 'en',
-                         'device_model': 'Desktop',
-                         'application_version': '1.0'})
-
-            # enter phone number to log in
-            if auth_state['@type'] == 'authorizationStateWaitPhoneNumber':
-                phone_number = input('Please enter your phone number: ')
-                td_send({'@type': 'setAuthenticationPhoneNumber', 'phone_number': phone_number})
-
-            # enter email address to log in
-            if auth_state['@type'] == 'authorizationStateWaitEmailAddress':
-                email_address = input('Please enter your email address: ')
-                td_send({'@type': 'setAuthenticationEmailAddress', 'email_address': email_address})
-
-            # wait for email authorization code
-            if auth_state['@type'] == 'authorizationStateWaitEmailCode':
-                code = input('Please enter the email authentication code you received: ')
-                td_send({'@type': 'checkAuthenticationEmailCode',
-                         'code': {'@type': 'emailAddressAuthenticationCode', 'code' : code}})
-
-            # wait for authorization code
-            if auth_state['@type'] == 'authorizationStateWaitCode':
-                code = input('Please enter the authentication code you received: ')
-                td_send({'@type': 'checkAuthenticationCode', 'code': code})
-
-            # wait for first and last name for new users
-            if auth_state['@type'] == 'authorizationStateWaitRegistration':
-                first_name = input('Please enter your first name: ')
-                last_name = input('Please enter your last name: ')
-                td_send({'@type': 'registerUser', 'first_name': first_name, 'last_name': last_name})
-
-            # wait for password if present
-            if auth_state['@type'] == 'authorizationStateWaitPassword':
-                password = input('Please enter your password: ')
-                td_send({'@type': 'checkAuthenticationPassword', 'password': password})
-
-        # handle an incoming update or an answer to a previously sent request
-        print(str(event).encode('utf-8'))
-        sys.stdout.flush()
diff --git a/third-party/td/td/example/swift/.gitignore b/third-party/td/td/example/swift/.gitignore
deleted file mode 100644
index 6e3ff7d7c5..0000000000
--- a/third-party/td/td/example/swift/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-/xcuserdata/
-/*workspace/
-/td/
diff --git a/third-party/td/td/example/swift/README.md b/third-party/td/td/example/swift/README.md
deleted file mode 100644
index ab7d855006..0000000000
--- a/third-party/td/td/example/swift/README.md
+++ /dev/null
@@ -1,15 +0,0 @@
-# TDLib swift macOS example
-
-TDLib should be prebuilt and installed to local subdirectory `td/`:
-```
-cd <path to TDLib sources>
-mkdir build
-cd build
-cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX:PATH=../example/swift/td ..
-cmake --build . --target install
-```
-
-After this you can open and build the example with the latest Xcode.
-
-Description of all available classes and methods can be found at [td_json_client](https://core.telegram.org/tdlib/docs/td__json__client_8h.html)
-and [td_api](https://core.telegram.org/tdlib/docs/td__api_8h.html) documentation.
diff --git a/third-party/td/td/example/swift/src/main.swift b/third-party/td/td/example/swift/src/main.swift
deleted file mode 100644
index cc477ff700..0000000000
--- a/third-party/td/td/example/swift/src/main.swift
+++ /dev/null
@@ -1,189 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-import Foundation
-
-// TDLib Client Swift binding
-class TdClient {
-    var client_id = td_create_client_id()
-    let tdlibMainLoop = DispatchQueue(label: "TDLib")
-    let tdlibQueryQueue = DispatchQueue(label: "TDLibQuery")
-    var queryF = Dictionary<Int64, (Dictionary<String,Any>)->()>()
-    var updateF: ((Dictionary<String,Any>)->())?
-    var queryId: Int64 = 0
-
-    func queryAsync(query: [String: Any], f: ((Dictionary<String,Any>)->())? = nil) {
-        tdlibQueryQueue.async {
-            var newQuery = query
-
-            if f != nil {
-                let nextQueryId = self.queryId + 1
-                newQuery["@extra"] = nextQueryId
-                self.queryF[nextQueryId] = f
-                self.queryId = nextQueryId
-            }
-            td_send(self.client_id, to_json(newQuery))
-        }
-    }
-
-    func querySync(query: [String: Any]) -> Dictionary<String,Any> {
-        let semaphore = DispatchSemaphore(value:0)
-        var result = Dictionary<String,Any>()
-        queryAsync(query: query) {
-            result = $0
-            semaphore.signal()
-        }
-        semaphore.wait()
-        return result
-    }
-
-    init() {
-    }
-
-    deinit {
-    }
-
-    func run(updateHandler: @escaping (Dictionary<String,Any>)->()) {
-        updateF = updateHandler
-        tdlibMainLoop.async { [weak self] in
-            while (true) {
-                if let s = self {
-                    if let res = td_receive(10) {
-                        let event = String(cString: res)
-                        s.queryResultAsync(event)
-                    }
-                } else {
-                    break
-                }
-            }
-        }
-    }
-
-    private func queryResultAsync(_ result: String) {
-        tdlibQueryQueue.async {
-            let json = try? JSONSerialization.jsonObject(with: result.data(using: .utf8)!, options:[])
-            if let dictionary = json as? [String:Any] {
-                if let extra = dictionary["@extra"] as? Int64 {
-                    let index = self.queryF.index(forKey: extra)!
-                    self.queryF[index].value(dictionary)
-                    self.queryF.remove(at: index)
-                } else {
-                    self.updateF!(dictionary)
-                }
-            }
-        }
-    }
-}
-
-func to_json(_ obj: Any) -> String {
-    do {
-        let obj = try JSONSerialization.data(withJSONObject: obj)
-        return String(data: obj, encoding: .utf8)!
-    } catch {
-        return ""
-    }
-}
-
-
-var client = TdClient()
-
-// start the client by sending request to it
-client.queryAsync(query: ["@type":"getOption", "name":"version"])
-
-func myReadLine() -> String {
-    while (true) {
-        if let line = readLine() {
-            return line
-        }
-    }
-}
-
-func updateAuthorizationState(authorizationState: Dictionary<String, Any>) {
-    switch(authorizationState["@type"] as! String) {
-        case "authorizationStateWaitTdlibParameters":
-            client.queryAsync(query:[
-                "@type":"setTdlibParameters",
-                "database_directory":"tdlib",
-                "use_message_database":true,
-                "use_secret_chats":true,
-                "api_id":94575,
-                "api_hash":"a3406de8d171bb422bb6ddf3bbd800e2",
-                "system_language_code":"en",
-                "device_model":"Desktop",
-                "application_version":"1.0"
-            ]);
-
-        case "authorizationStateWaitPhoneNumber":
-            print("Enter your phone number: ")
-            let phone_number = myReadLine()
-            client.queryAsync(query:["@type":"setAuthenticationPhoneNumber", "phone_number":phone_number], f:checkAuthenticationError)
-
-        case "authorizationStateWaitEmailAddress":
-            print("Enter your email address: ")
-            let email_address = myReadLine()
-            client.queryAsync(query:["@type":"setAuthenticationEmailAddress", "email_address":email_address], f:checkAuthenticationError)
-
-        case "authorizationStateWaitEmailCode":
-            var code: String = ""
-            print("Enter email code: ")
-            code = myReadLine()
-            client.queryAsync(query:["@type":"checkAuthenticationEmailCode", "code":["@type":"emailAddressAuthenticationCode", "code":code]], f:checkAuthenticationError)
-
-        case "authorizationStateWaitCode":
-            var code: String = ""
-            print("Enter (SMS) code: ")
-            code = myReadLine()
-            client.queryAsync(query:["@type":"checkAuthenticationCode", "code":code], f:checkAuthenticationError)
-
-        case "authorizationStateWaitRegistration":
-            var first_name: String = ""
-            var last_name: String = ""
-            print("Enter your first name: ")
-            first_name = myReadLine()
-            print("Enter your last name: ")
-            last_name = myReadLine()
-            client.queryAsync(query:["@type":"registerUser", "first_name":first_name, "last_name":last_name], f:checkAuthenticationError)
-
-        case "authorizationStateWaitPassword":
-            print("Enter password: ")
-            let password = myReadLine()
-            client.queryAsync(query:["@type":"checkAuthenticationPassword", "password":password], f:checkAuthenticationError)
-
-        case "authorizationStateReady":
-            ()
-
-        case "authorizationStateLoggingOut":
-            print("Logging out...")
-
-        case "authorizationStateClosing":
-            print("Closing...")
-
-        case "authorizationStateClosed":
-            print("Closed.")
-
-        default:
-            assert(false, "TODO: Unexpected authorization state");
-    }
-}
-
-func checkAuthenticationError(error: Dictionary<String, Any>) {
-    if (error["@type"] as! String == "error") {
-        client.queryAsync(query:["@type":"getAuthorizationState"], f:updateAuthorizationState)
-    }
-}
-
-client.run {
-    let update = $0
-    print(update)
-    if update["@type"] as! String == "updateAuthorizationState" {
-        updateAuthorizationState(authorizationState: update["authorization_state"] as! Dictionary<String, Any>)
-    }
-}
-
-while true {
-    sleep(1)
-}
diff --git a/third-party/td/td/example/swift/src/td-Bridging-Header.h b/third-party/td/td/example/swift/src/td-Bridging-Header.h
deleted file mode 100644
index 981300ad42..0000000000
--- a/third-party/td/td/example/swift/src/td-Bridging-Header.h
+++ /dev/null
@@ -1,9 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#include "td/telegram/td_json_client.h"
-#include "td/telegram/td_log.h"
diff --git a/third-party/td/td/example/uwp/LICENSE_1_0.txt b/third-party/td/td/example/uwp/LICENSE_1_0.txt
deleted file mode 100644
index 36b7cd93cd..0000000000
--- a/third-party/td/td/example/uwp/LICENSE_1_0.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Boost Software License - Version 1.0 - August 17th, 2003
-
-Permission is hereby granted, free of charge, to any person or organization
-obtaining a copy of the software and accompanying documentation covered by
-this license (the "Software") to use, reproduce, display, distribute,
-execute, and transmit the Software, and to prepare derivative works of the
-Software, and to permit third-parties to whom the Software is furnished to
-do so, all subject to the following:
-
-The copyright notices in the Software and this entire statement, including
-the above license grant, this restriction and the following disclaimer,
-must be included in all copies of the Software, in whole or in part, and
-all derivative works of the Software, unless such copies or derivative
-works are solely in the form of machine-executable object code generated by
-a source language processor.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
-SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
-FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
diff --git a/third-party/td/td/example/uwp/README.md b/third-party/td/td/example/uwp/README.md
deleted file mode 100644
index eab3528e8a..0000000000
--- a/third-party/td/td/example/uwp/README.md
+++ /dev/null
@@ -1,33 +0,0 @@
-# TDLib Universal Windows Platform example
-
-This is an example of building TDLib SDK for Universal Windows Platform and an example of its usage from C#.
-
-## Building SDK
-
-* Download and install Microsoft Visual Studio 2017+ with Windows 10 SDK. We recommend to use the latest available versions of Microsoft Visual Studio and Windows 10 SDK.
-* Download and install [CMake](https://cmake.org/download/). CMake 3.13 or newer is required.
-* Install `zlib` and `openssl` for all UWP architectures and `gperf` for x86 using [vcpkg](https://github.com/Microsoft/vcpkg#quick-start):
-```
-git clone https://github.com/Microsoft/vcpkg.git
-cd vcpkg
-git checkout 07b30b49e5136a36100a2ce644476e60d7f3ddc1
-.\bootstrap-vcpkg.bat
-.\vcpkg.exe install gperf:x86-windows openssl:arm-uwp openssl:arm64-uwp openssl:x64-uwp openssl:x86-uwp zlib:arm-uwp zlib:arm64-uwp zlib:x64-uwp zlib:x86-uwp
-```
-* (Optional. For XML documentation generation.) Download [PHP](https://windows.php.net/download). Add the path to php.exe to the PATH environment variable.
-* Download and install [7-Zip](http://www.7-zip.org/download.html) archiver, which is used by the `build.ps1` script to create a Telegram.Td.UWP Visual Studio Extension. Add the path to 7z.exe to the PATH environment variable.
-  Alternatively `build.ps1` supports compressing using [WinRAR](https://en.wikipedia.org/wiki/WinRAR) with option `-compress winrar` and compressing using [zip](http://gnuwin32.sourceforge.net/packages/zip.htm) with `-compress zip`.
-* Build `TDLib` using provided `build.ps1` script (TDLib should be built 6 times for multiple platforms in Debug and Release configurations, so it make take few hours). Pass path to vcpkg.exe as `-vcpkg-root` argument, for example:
-```
-powershell -ExecutionPolicy ByPass .\build.ps1 -vcpkg_root C:\vcpkg
-```
-If you need to restart the build from scratch, call `.\build.ps1 -vcpkg_root C:\vcpkg -mode clean` first.
-* Install Visual Studio Extension "TDLib for Universal Windows Platform" located at `build-uwp\vsix\tdlib.vsix`, which was created on the previous step by `build.ps1` script.
-
-After this `TDLib` can be used from any UWP project, built in Visual Studio.
-
-Alternatively, you can build `TDLib` as a NuGet package, adding the option `-nupkg` to the `.\build.ps1` script invocation. The resulting package will be placed in the directory `build-uwp\nupkg`.
-
-## Example of usage
-
-The `app/` directory contains a simple example of a C# application for Universal Windows Platform. Just open it with Visual Studio 2015 or later and run.
diff --git a/third-party/td/td/example/uwp/SDKManifest.xml b/third-party/td/td/example/uwp/SDKManifest.xml
deleted file mode 100644
index e46a8a0d39..0000000000
--- a/third-party/td/td/example/uwp/SDKManifest.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<FileList
-    DisplayName="TDLib for Universal Windows Platform"
-    ProductFamilyName="Telegram.Td.UWP"
-    MoreInfo="https://core.telegram.org/tdlib"
-    MinVSVersion="14.0"
-    AppliesTo="WindowsAppContainer"
-    DependsOn="Microsoft.VCLibs, version=14.0"
-    SupportsMultipleVersions="Error"
-    SupportedArchitectures="x86;x64;ARM;ARM64">
-  <File Reference="Telegram.Td.winmd" Implementation="Telegram.Td.dll" />
-</FileList>
diff --git a/third-party/td/td/example/uwp/Telegram.Td.UWP.nuspec b/third-party/td/td/example/uwp/Telegram.Td.UWP.nuspec
deleted file mode 100644
index 7fa9dc1008..0000000000
--- a/third-party/td/td/example/uwp/Telegram.Td.UWP.nuspec
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<package xmlns="http://schemas.microsoft.com/packaging/2013/01/nuspec.xsd">
-  <metadata>
-    <id>Telegram.Td.UWP</id>
-    <version>1.8.46</version>
-    <title>TDLib for Universal Windows Platform</title>
-    <authors>Telegram</authors>
-    <owners>Telegram</owners>
-    <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <license type="file">LICENSE_1_0.txt</license>
-    <projectUrl>https://core.telegram.org/tdlib</projectUrl>
-    <releaseNotes>https://github.com/tdlib/td/blob/master/CHANGELOG.md</releaseNotes>
-    <description>TDLib for Universal Windows Platform</description>
-    <copyright>© Telegram FZ-LLC. All rights reserved.</copyright>
-    <dependencies>
-      <group targetFramework="UAP10.0" />
-    </dependencies>
-  </metadata>
-</package>
\ No newline at end of file
diff --git a/third-party/td/td/example/uwp/Telegram.Td.UWP.targets b/third-party/td/td/example/uwp/Telegram.Td.UWP.targets
deleted file mode 100644
index ab70e6d6fc..0000000000
--- a/third-party/td/td/example/uwp/Telegram.Td.UWP.targets
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-
-  <PropertyGroup>
-    <TelegramTdPlatform Condition="'$(Platform)' == 'Win32'">x86</TelegramTdPlatform>
-    <TelegramTdPlatform Condition="'$(Platform)' != 'Win32'">$(Platform)</TelegramTdPlatform>
-    <OpenSSLPlatform Condition="'$(Platform)' == 'Win32'"></OpenSSLPlatform>
-    <OpenSSLPlatform Condition="'$(Platform)' != 'Win32'">-$(Platform)</OpenSSLPlatform>
-  </PropertyGroup>
-
-  <ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'UAP'">
-      <Reference Include="$(MSBuildThisFileDirectory)..\..\lib\uap10.0\Telegram.Td.winmd">
-        <Implementation>Telegram.Td.dll</Implementation>
-      </Reference>
-      <ReferenceCopyLocalPaths Include="$(MSBuildThisFileDirectory)..\..\runtimes\win10-$(TelegramTdPlatform)\native\Telegram.Td.dll" />
-      <ReferenceCopyLocalPaths Include="$(MSBuildThisFileDirectory)..\..\runtimes\win10-$(TelegramTdPlatform)\native\libcrypto-3$(OpenSSLPlatform).dll" />
-      <ReferenceCopyLocalPaths Include="$(MSBuildThisFileDirectory)..\..\runtimes\win10-$(TelegramTdPlatform)\native\libssl-3$(OpenSSLPlatform).dll" />
-      <ReferenceCopyLocalPaths Include="$(MSBuildThisFileDirectory)..\..\runtimes\win10-$(TelegramTdPlatform)\native\zlib1.dll" />
-  </ItemGroup>
-
-</Project>
\ No newline at end of file
diff --git a/third-party/td/td/example/uwp/[Content_Types].xml b/third-party/td/td/example/uwp/[Content_Types].xml
deleted file mode 100644
index b91d46fa3c..0000000000
--- a/third-party/td/td/example/uwp/[Content_Types].xml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">
-  <Default Extension="winmd" ContentType="application/octet-stream" />
-  <Default Extension="pri" ContentType="application/octet-stream" />
-  <Default Extension="dll" ContentType="application/octet-stream" />
-  <Default Extension="h" ContentType="application/octet-stream" />
-  <Default Extension="lib" ContentType="application/octet-stream" />
-  <Default Extension="pdb" ContentType="application/octet-stream" />
-  <Default Extension="png" ContentType="application/octet-stream" />
-  <Default Extension="props" ContentType="application/octet-stream" />
-  <Default Extension="txt" ContentType="text/plain" />
-  <Default Extension="vsixmanifest" ContentType="text/xml" />
-  <Default Extension="xml" ContentType="text/xml" />
-</Types>
diff --git a/third-party/td/td/example/uwp/app/.gitignore b/third-party/td/td/example/uwp/app/.gitignore
deleted file mode 100644
index 080296853a..0000000000
--- a/third-party/td/td/example/uwp/app/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-/.vs/
-/bin/
-/obj/
-/project.lock.json
-/TdApp.csproj.user
diff --git a/third-party/td/td/example/uwp/app/App.xaml b/third-party/td/td/example/uwp/app/App.xaml
deleted file mode 100644
index b4256fd441..0000000000
--- a/third-party/td/td/example/uwp/app/App.xaml
+++ /dev/null
@@ -1,7 +0,0 @@
-<Application
-    x:Class="TdApp.App"
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:local="using:TdApp"
-    RequestedTheme="Light">
-</Application>
diff --git a/third-party/td/td/example/uwp/app/App.xaml.cs b/third-party/td/td/example/uwp/app/App.xaml.cs
deleted file mode 100644
index 7b253843e3..0000000000
--- a/third-party/td/td/example/uwp/app/App.xaml.cs
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-using System;
-using Windows.ApplicationModel;
-using Windows.ApplicationModel.Activation;
-using Windows.UI.Xaml;
-using Windows.UI.Xaml.Controls;
-using Windows.UI.Xaml.Navigation;
-
-namespace TdApp
-{
-    /// <summary>
-    /// Provides application-specific behavior to supplement the default Application class.
-    /// </summary>
-    sealed partial class App : Application
-    {
-        /// <summary>
-        /// Initializes the singleton application object.  This is the first line of authored code
-        /// executed, and as such is the logical equivalent of main() or WinMain().
-        /// </summary>
-        public App()
-        {
-            Microsoft.ApplicationInsights.WindowsAppInitializer.InitializeAsync(
-                Microsoft.ApplicationInsights.WindowsCollectors.Metadata |
-                Microsoft.ApplicationInsights.WindowsCollectors.Session);
-            this.InitializeComponent();
-            this.Suspending += OnSuspending;
-        }
-
-        /// <summary>
-        /// Invoked when the application is launched normally by the end user.  Other entry points
-        /// will be used such as when the application is launched to open a specific file.
-        /// </summary>
-        /// <param name="e">Details about the launch request and process.</param>
-        protected override void OnLaunched(LaunchActivatedEventArgs e)
-        {
-
-#if DEBUG
-            if (System.Diagnostics.Debugger.IsAttached)
-            {
-                this.DebugSettings.EnableFrameRateCounter = true;
-            }
-#endif
-
-            Frame rootFrame = Window.Current.Content as Frame;
-
-            // Do not repeat app initialization when the Window already has content,
-            // just ensure that the window is active
-            if (rootFrame == null)
-            {
-                // Create a Frame to act as the navigation context and navigate to the first page
-                rootFrame = new Frame();
-
-                rootFrame.NavigationFailed += OnNavigationFailed;
-
-                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
-                {
-                    //TODO: Load state from previously suspended application
-                }
-
-                // Place the frame in the current Window
-                Window.Current.Content = rootFrame;
-            }
-
-            if (rootFrame.Content == null)
-            {
-                // When the navigation stack isn't restored navigate to the first page,
-                // configuring the new page by passing required information as a navigation
-                // parameter
-                rootFrame.Navigate(typeof(MainPage), e.Arguments);
-            }
-            // Ensure the current window is active
-            Window.Current.Activate();
-        }
-
-        /// <summary>
-        /// Invoked when Navigation to a certain page fails
-        /// </summary>
-        /// <param name="sender">The Frame which failed navigation</param>
-        /// <param name="e">Details about the navigation failure</param>
-        void OnNavigationFailed(object sender, NavigationFailedEventArgs e)
-        {
-            throw new Exception("Failed to load Page " + e.SourcePageType.FullName);
-        }
-
-        /// <summary>
-        /// Invoked when application execution is being suspended.  Application state is saved
-        /// without knowing whether the application will be terminated or resumed with the contents
-        /// of memory still intact.
-        /// </summary>
-        /// <param name="sender">The source of the suspend request.</param>
-        /// <param name="e">Details about the suspend request.</param>
-        private void OnSuspending(object sender, SuspendingEventArgs e)
-        {
-            var deferral = e.SuspendingOperation.GetDeferral();
-            //TODO: Save application state and stop any background activity
-            deferral.Complete();
-        }
-    }
-}
diff --git a/third-party/td/td/example/uwp/app/ApplicationInsights.config b/third-party/td/td/example/uwp/app/ApplicationInsights.config
deleted file mode 100644
index cb2a232da3..0000000000
--- a/third-party/td/td/example/uwp/app/ApplicationInsights.config
+++ /dev/null
@@ -1,3 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ApplicationInsights xmlns = "http://schemas.microsoft.com/ApplicationInsights/2013/Settings">
-</ApplicationInsights>
diff --git a/third-party/td/td/example/uwp/app/Assets/LockScreenLogo.scale-200.png b/third-party/td/td/example/uwp/app/Assets/LockScreenLogo.scale-200.png
deleted file mode 100644
index 735f57adb5..0000000000
Binary files a/third-party/td/td/example/uwp/app/Assets/LockScreenLogo.scale-200.png and /dev/null differ
diff --git a/third-party/td/td/example/uwp/app/Assets/SplashScreen.scale-200.png b/third-party/td/td/example/uwp/app/Assets/SplashScreen.scale-200.png
deleted file mode 100644
index 023e7f1fed..0000000000
Binary files a/third-party/td/td/example/uwp/app/Assets/SplashScreen.scale-200.png and /dev/null differ
diff --git a/third-party/td/td/example/uwp/app/Assets/Square150x150Logo.scale-200.png b/third-party/td/td/example/uwp/app/Assets/Square150x150Logo.scale-200.png
deleted file mode 100644
index af49fec1a5..0000000000
Binary files a/third-party/td/td/example/uwp/app/Assets/Square150x150Logo.scale-200.png and /dev/null differ
diff --git a/third-party/td/td/example/uwp/app/Assets/Square44x44Logo.scale-200.png b/third-party/td/td/example/uwp/app/Assets/Square44x44Logo.scale-200.png
deleted file mode 100644
index ce342a2ec8..0000000000
Binary files a/third-party/td/td/example/uwp/app/Assets/Square44x44Logo.scale-200.png and /dev/null differ
diff --git a/third-party/td/td/example/uwp/app/Assets/Square44x44Logo.targetsize-24_altform-unplated.png b/third-party/td/td/example/uwp/app/Assets/Square44x44Logo.targetsize-24_altform-unplated.png
deleted file mode 100644
index f6c02ce97e..0000000000
Binary files a/third-party/td/td/example/uwp/app/Assets/Square44x44Logo.targetsize-24_altform-unplated.png and /dev/null differ
diff --git a/third-party/td/td/example/uwp/app/Assets/StoreLogo.png b/third-party/td/td/example/uwp/app/Assets/StoreLogo.png
deleted file mode 100644
index 7385b56c0e..0000000000
Binary files a/third-party/td/td/example/uwp/app/Assets/StoreLogo.png and /dev/null differ
diff --git a/third-party/td/td/example/uwp/app/Assets/Wide310x150Logo.scale-200.png b/third-party/td/td/example/uwp/app/Assets/Wide310x150Logo.scale-200.png
deleted file mode 100644
index 288995b397..0000000000
Binary files a/third-party/td/td/example/uwp/app/Assets/Wide310x150Logo.scale-200.png and /dev/null differ
diff --git a/third-party/td/td/example/uwp/app/MainPage.xaml b/third-party/td/td/example/uwp/app/MainPage.xaml
deleted file mode 100644
index cdff97d9f3..0000000000
--- a/third-party/td/td/example/uwp/app/MainPage.xaml
+++ /dev/null
@@ -1,29 +0,0 @@
-<Page
-    x:Class="TdApp.MainPage"
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:local="using:TdApp"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-    mc:Ignorable="d"
-    x:Name="Self">
-
-    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
-        <Grid.RowDefinitions>
-            <RowDefinition Height="Auto"/>
-            <RowDefinition Height="*"/>
-        </Grid.RowDefinitions>
-        <Grid>
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="*"/>
-                <ColumnDefinition Width="Auto"/>
-            </Grid.ColumnDefinitions>
-            <TextBox x:Name="Input"/>
-            <Button Grid.Column="1" x:Name="Send" Content="send" Click="Button_Click"/>
-        </Grid>
-        <ListBox Grid.Row="1" x:Name="ItemsControl" ItemsSource="{Binding Items, ElementName=Self}">
-
-        </ListBox>
-        <!--<Button Content="Test" Click="Button_Click"/>-->
-    </Grid>
-</Page>
diff --git a/third-party/td/td/example/uwp/app/MainPage.xaml.cs b/third-party/td/td/example/uwp/app/MainPage.xaml.cs
deleted file mode 100644
index abca8a32d5..0000000000
--- a/third-party/td/td/example/uwp/app/MainPage.xaml.cs
+++ /dev/null
@@ -1,186 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-using System;
-using System.IO;
-using Td = Telegram.Td;
-using TdApi = Telegram.Td.Api;
-using Windows.UI.Core;
-using Windows.UI.Xaml;
-using Windows.UI.Xaml.Controls;
-
-namespace TdApp
-{
-    public sealed partial class MainPage : Page
-    {
-        public System.Collections.ObjectModel.ObservableCollection<string> Items { get; set; }
-
-        private MyClientResultHandler _handler;
-
-        public MainPage()
-        {
-            InitializeComponent();
-
-            Items = new System.Collections.ObjectModel.ObservableCollection<string>();
-            _handler = new MyClientResultHandler(this);
-
-            Td.Client.Execute(new TdApi.SetLogVerbosityLevel(0));
-            Td.Client.Execute(new TdApi.SetLogStream(new TdApi.LogStreamFile(Path.Combine(Windows.Storage.ApplicationData.Current.LocalFolder.Path, "log"), 1 << 27, false)));
-            Td.Client.SetLogMessageCallback(100, LogMessageCallback);
-            System.Threading.Tasks.Task.Run(() =>
-            {
-                Td.Client.Run();
-            });
-
-            _client = Td.Client.Create(_handler);
-            var request = new TdApi.SetTdlibParameters();
-            request.DatabaseDirectory = Windows.Storage.ApplicationData.Current.LocalFolder.Path;
-            request.UseSecretChats = true;
-            request.UseMessageDatabase = true;
-            request.ApiId = 94575;
-            request.ApiHash = "a3406de8d171bb422bb6ddf3bbd800e2";
-            request.SystemLanguageCode = "en";
-            request.DeviceModel = "Desktop";
-            request.ApplicationVersion = "1.0.0";
-            _client.Send(request, null);
-        }
-
-        public void Print(String str)
-        {
-            var delayTask = Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
-            {
-                Items.Insert(0, str.Substring(0, Math.Min(1024, str.Length)));
-            });
-        }
-
-        private void LogMessageCallback(int verbosity_level, String str)
-        {
-            if (verbosity_level < 0) {
-                return;
-            }
-            Print(verbosity_level + ": " + str);
-        }
-
-        private Td.Client _client;
-
-        private void AcceptCommand(String command)
-        {
-            Input.Text = string.Empty;
-            Items.Insert(0, string.Format(">>{0}", command));
-        }
-        private void Button_Click(object sender, RoutedEventArgs e)
-        {
-            var command = Input.Text;
-
-            if (command.StartsWith("DESTROY"))
-            {
-                AcceptCommand("Destroy");
-                _client.Send(new TdApi.Destroy(), _handler);
-            }
-            else if (command.StartsWith("lo"))
-            {
-                AcceptCommand("LogOut");
-                _client.Send(new TdApi.LogOut(), _handler);
-            }
-            else if (command.StartsWith("sap"))
-            {
-                var args = command.Split(" ".ToCharArray(), 2);
-                AcceptCommand(command);
-                _client.Send(new TdApi.SetAuthenticationPhoneNumber(args[1], null), _handler);
-            }
-            else if (command.StartsWith("sae"))
-            {
-                var args = command.Split(" ".ToCharArray(), 2);
-                AcceptCommand(command);
-                _client.Send(new TdApi.SetAuthenticationEmailAddress(args[1]), _handler);
-            }
-            else if (command.StartsWith("caec"))
-            {
-                var args = command.Split(" ".ToCharArray(), 2);
-                AcceptCommand(command);
-                _client.Send(new TdApi.CheckAuthenticationEmailCode(new TdApi.EmailAddressAuthenticationCode(args[1])), _handler);
-            }
-            else if (command.StartsWith("cac"))
-            {
-                var args = command.Split(" ".ToCharArray(), 2);
-                AcceptCommand(command);
-                _client.Send(new TdApi.CheckAuthenticationCode(args[1]), _handler);
-            }
-            else if (command.StartsWith("cap"))
-            {
-                var args = command.Split(" ".ToCharArray(), 2);
-                AcceptCommand(command);
-                _client.Send(new TdApi.CheckAuthenticationPassword(args[1]), _handler);
-            }
-            else if (command.StartsWith("alm"))
-            {
-                var args = command.Split(" ".ToCharArray(), 3);
-                AcceptCommand(command);
-                _client.Send(new TdApi.AddLogMessage(Int32.Parse(args[1]), args[2]), _handler);
-            }
-            else if (command.StartsWith("gco"))
-            {
-                var args = command.Split(" ".ToCharArray(), 2);
-                AcceptCommand(command);
-                _client.Send(new TdApi.SearchContacts(), _handler);
-            }
-            else if (command.StartsWith("df"))
-            {
-                var args = command.Split(" ".ToCharArray(), 2);
-                AcceptCommand(command);
-                _client.Send(new TdApi.DownloadFile(Int32.Parse(args[1]), 1, 0, 0, false), _handler);
-            }
-            else if (command.StartsWith("bench"))
-            {
-                var args = command.Split(" ".ToCharArray(), 2);
-                AcceptCommand(command);
-                var cnt = Int32.Parse(args[1]);
-                var handler = new BenchSimpleHandler(this, cnt);
-                for (int i = 0; i < cnt; i++)
-                {
-                    _client.Send(new TdApi.TestSquareInt(123), handler);
-                }
-            }
-        }
-    }
-
-    class MyClientResultHandler : Td.ClientResultHandler
-    {
-        private MainPage _page;
-
-        public MyClientResultHandler(MainPage page)
-        {
-            _page = page;
-        }
-
-        public void OnResult(TdApi.BaseObject obj)
-        {
-            var str = obj.ToString();
-            _page.Print(str);
-        }
-    }
-
-    class BenchSimpleHandler : Td.ClientResultHandler
-    {
-        private MainPage _page;
-        private int _cnt;
-
-        public BenchSimpleHandler(MainPage page, int cnt)
-        {
-            _page = page;
-            _cnt = cnt;
-        }
-
-        public void OnResult(TdApi.BaseObject obj)
-        {
-            _cnt--;
-            if (_cnt == 0)
-            {
-                _page.Print("DONE");
-            }
-        }
-    }
-}
diff --git a/third-party/td/td/example/uwp/app/Package.appxmanifest b/third-party/td/td/example/uwp/app/Package.appxmanifest
deleted file mode 100644
index ca1235ffa7..0000000000
--- a/third-party/td/td/example/uwp/app/Package.appxmanifest
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" IgnorableNamespaces="uap mp">
-  <Identity Name="1c9ba6de-23cf-4aef-803b-91fcc451b69a" Publisher="CN=arseny30" Version="1.0.0.0" />
-  <mp:PhoneIdentity PhoneProductId="1c9ba6de-23cf-4aef-803b-91fcc451b69a" PhonePublisherId="00000000-0000-0000-0000-000000000000" />
-  <Properties>
-    <DisplayName>TdApp</DisplayName>
-    <PublisherDisplayName>arseny30</PublisherDisplayName>
-    <Logo>Assets\StoreLogo.png</Logo>
-  </Properties>
-  <Dependencies>
-    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.0.0" MaxVersionTested="10.0.0.0" />
-  </Dependencies>
-  <Resources>
-    <Resource Language="x-generate" />
-  </Resources>
-  <Applications>
-    <Application Id="App" Executable="$targetnametoken$.exe" EntryPoint="TdApp.App">
-      <uap:VisualElements DisplayName="TdApp" Square150x150Logo="Assets\Square150x150Logo.png" Square44x44Logo="Assets\Square44x44Logo.png" Description="TdApp" BackgroundColor="transparent">
-        <uap:DefaultTile Wide310x150Logo="Assets\Wide310x150Logo.png">
-        </uap:DefaultTile>
-        <uap:SplashScreen Image="Assets\SplashScreen.png" />
-      </uap:VisualElements>
-    </Application>
-  </Applications>
-  <Capabilities>
-    <Capability Name="internetClient" />
-  </Capabilities>
-</Package>
\ No newline at end of file
diff --git a/third-party/td/td/example/uwp/app/Properties/AssemblyInfo.cs b/third-party/td/td/example/uwp/app/Properties/AssemblyInfo.cs
deleted file mode 100644
index e79a4b16d9..0000000000
--- a/third-party/td/td/example/uwp/app/Properties/AssemblyInfo.cs
+++ /dev/null
@@ -1,29 +0,0 @@
-using System.Reflection;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-// General Information about an assembly is controlled through the following
-// set of attributes. Change these attribute values to modify the information
-// associated with an assembly.
-[assembly: AssemblyTitle("App2")]
-[assembly: AssemblyDescription("")]
-[assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("")]
-[assembly: AssemblyProduct("App2")]
-[assembly: AssemblyCopyright("Copyright © 2015-2025")]
-[assembly: AssemblyTrademark("")]
-[assembly: AssemblyCulture("")]
-
-// Version information for an assembly consists of the following four values:
-//
-//      Major Version
-//      Minor Version
-//      Build Number
-//      Revision
-//
-// You can specify all the values or you can default the Build and Revision Numbers
-// by using the '*' as shown below:
-// [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
-[assembly: ComVisible(false)]
diff --git a/third-party/td/td/example/uwp/app/Properties/Default.rd.xml b/third-party/td/td/example/uwp/app/Properties/Default.rd.xml
deleted file mode 100644
index 479eb7669d..0000000000
--- a/third-party/td/td/example/uwp/app/Properties/Default.rd.xml
+++ /dev/null
@@ -1,31 +0,0 @@
-<!--
-    This file contains Runtime Directives used by .NET Native. The defaults here are suitable for most
-    developers. However, you can modify these parameters to modify the behavior of the .NET Native
-    optimizer.
-
-    Runtime Directives are documented at http://go.microsoft.com/fwlink/?LinkID=391919
-
-    To fully enable reflection for App1.MyClass and all of its public/private members
-    <Type Name="App1.MyClass" Dynamic="Required All"/>
-
-    To enable dynamic creation of the specific instantiation of AppClass<T> over System.Int32
-    <TypeInstantiation Name="App1.AppClass" Arguments="System.Int32" Activate="Required Public" />
-
-    Using the Namespace directive to apply reflection policy to all the types in a particular namespace
-    <Namespace Name="DataClasses.ViewModels" Seralize="All" />
--->
-
-<Directives xmlns="http://schemas.microsoft.com/netfx/2013/01/metadata">
-  <Application>
-    <!--
-      An Assembly element with Name="*Application*" applies to all assemblies in
-      the application package. The asterisks are not wildcards.
-    -->
-    <Assembly Name="*Application*" Dynamic="Required All" />
-
-
-    <!-- Add your application specific runtime directives here. -->
-
-
-  </Application>
-</Directives>
\ No newline at end of file
diff --git a/third-party/td/td/example/uwp/app/TdApp.csproj b/third-party/td/td/example/uwp/app/TdApp.csproj
deleted file mode 100644
index 2b0de8df3d..0000000000
--- a/third-party/td/td/example/uwp/app/TdApp.csproj
+++ /dev/null
@@ -1,151 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
-    <ProjectGuid>{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}</ProjectGuid>
-    <OutputType>AppContainerExe</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>TdApp</RootNamespace>
-    <AssemblyName>TdApp</AssemblyName>
-    <DefaultLanguage>en-US</DefaultLanguage>
-    <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
-    <TargetPlatformVersion>10.0.10586.0</TargetPlatformVersion>
-    <TargetPlatformMinVersion>10.0.10240.0</TargetPlatformMinVersion>
-    <MinimumVisualStudioVersion>14</MinimumVisualStudioVersion>
-    <FileAlignment>512</FileAlignment>
-    <ProjectTypeGuids>{A5A43C5B-DE2A-4C0C-9213-0A381AF9435A};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
-    <PackageCertificateKeyFile>TdApp_TemporaryKey.pfx</PackageCertificateKeyFile>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x86\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
-    <OutputPath>bin\x86\Release\</OutputPath>
-    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
-    <Optimize>true</Optimize>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-    <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|ARM'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\ARM\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>full</DebugType>
-    <PlatformTarget>ARM</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|ARM'">
-    <OutputPath>bin\ARM\Release\</OutputPath>
-    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
-    <Optimize>true</Optimize>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>ARM</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-    <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x64\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>full</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
-    <OutputPath>bin\x64\Release\</OutputPath>
-    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
-    <Optimize>true</Optimize>
-    <NoWarn>;2008</NoWarn>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x64</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <Prefer32Bit>true</Prefer32Bit>
-    <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
-  </PropertyGroup>
-  <ItemGroup>
-    <!-- A reference to the entire .NET Framework and Windows SDK are automatically included -->
-    <Content Include="ApplicationInsights.config">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-    <None Include="project.json" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="App.xaml.cs">
-      <DependentUpon>App.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="MainPage.xaml.cs">
-      <DependentUpon>MainPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Properties\AssemblyInfo.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <AppxManifest Include="Package.appxmanifest">
-      <SubType>Designer</SubType>
-    </AppxManifest>
-    <None Include="TdApp_TemporaryKey.pfx" />
-  </ItemGroup>
-  <ItemGroup>
-    <Content Include="Properties\Default.rd.xml" />
-    <Content Include="Assets\LockScreenLogo.scale-200.png" />
-    <Content Include="Assets\SplashScreen.scale-200.png" />
-    <Content Include="Assets\Square150x150Logo.scale-200.png" />
-    <Content Include="Assets\Square44x44Logo.scale-200.png" />
-    <Content Include="Assets\Square44x44Logo.targetsize-24_altform-unplated.png" />
-    <Content Include="Assets\StoreLogo.png" />
-    <Content Include="Assets\Wide310x150Logo.scale-200.png" />
-  </ItemGroup>
-  <ItemGroup>
-    <ApplicationDefinition Include="App.xaml">
-      <Generator>MSBuild:Compile</Generator>
-      <SubType>Designer</SubType>
-    </ApplicationDefinition>
-    <Page Include="MainPage.xaml">
-      <Generator>MSBuild:Compile</Generator>
-      <SubType>Designer</SubType>
-    </Page>
-  </ItemGroup>
-  <ItemGroup>
-    <SDKReference Include="Microsoft.VCLibs, Version=14.0">
-      <Name>Visual C++ 2015 Runtime for Universal Windows Platform Apps</Name>
-    </SDKReference>
-    <SDKReference Include="Telegram.Td.UWP, Version=1.0">
-      <Name>TDLib for Universal Windows Platform</Name>
-    </SDKReference>
-  </ItemGroup>
-  <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '14.0' ">
-    <VisualStudioVersion>14.0</VisualStudioVersion>
-  </PropertyGroup>
-  <Import Project="$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
-</Project>
\ No newline at end of file
diff --git a/third-party/td/td/example/uwp/app/TdApp.sln b/third-party/td/td/example/uwp/app/TdApp.sln
deleted file mode 100644
index 7b668c18eb..0000000000
--- a/third-party/td/td/example/uwp/app/TdApp.sln
+++ /dev/null
@@ -1,40 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 14
-VisualStudioVersion = 14.0.24720.0
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TdApp", "TdApp.csproj", "{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|ARM = Debug|ARM
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|ARM = Release|ARM
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|ARM.ActiveCfg = Debug|ARM
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|ARM.Build.0 = Debug|ARM
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|ARM.Deploy.0 = Debug|ARM
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|x64.ActiveCfg = Debug|x64
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|x64.Build.0 = Debug|x64
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|x64.Deploy.0 = Debug|x64
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|x86.ActiveCfg = Debug|x86
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|x86.Build.0 = Debug|x86
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Debug|x86.Deploy.0 = Debug|x86
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|ARM.ActiveCfg = Release|ARM
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|ARM.Build.0 = Release|ARM
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|ARM.Deploy.0 = Release|ARM
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|x64.ActiveCfg = Release|x64
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|x64.Build.0 = Release|x64
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|x64.Deploy.0 = Release|x64
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|x86.ActiveCfg = Release|x86
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|x86.Build.0 = Release|x86
-		{0B971A4C-EC00-4FED-BCC2-FCD03B78D644}.Release|x86.Deploy.0 = Release|x86
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal
diff --git a/third-party/td/td/example/uwp/app/TdApp_TemporaryKey.pfx b/third-party/td/td/example/uwp/app/TdApp_TemporaryKey.pfx
deleted file mode 100644
index 05ffbcabbc..0000000000
Binary files a/third-party/td/td/example/uwp/app/TdApp_TemporaryKey.pfx and /dev/null differ
diff --git a/third-party/td/td/example/uwp/app/project.json b/third-party/td/td/example/uwp/app/project.json
deleted file mode 100644
index e3b2dba25f..0000000000
--- a/third-party/td/td/example/uwp/app/project.json
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-  "dependencies": {
-    "Microsoft.ApplicationInsights": "1.0.0",
-    "Microsoft.ApplicationInsights.PersistenceChannel": "1.0.0",
-    "Microsoft.ApplicationInsights.WindowsApps": "1.0.0",
-    "Microsoft.NETCore.UniversalWindowsPlatform": "5.0.0"
-  },
-  "frameworks": {
-    "uap10.0": {}
-  },
-  "runtimes": {
-    "win10-arm": {},
-    "win10-arm-aot": {},
-    "win10-x86": {},
-    "win10-x86-aot": {},
-    "win10-x64": {},
-    "win10-x64-aot": {}
-  }
-}
\ No newline at end of file
diff --git a/third-party/td/td/example/uwp/build.ps1 b/third-party/td/td/example/uwp/build.ps1
deleted file mode 100644
index 2c53e40863..0000000000
--- a/third-party/td/td/example/uwp/build.ps1
+++ /dev/null
@@ -1,173 +0,0 @@
-param (
-  [string]$vcpkg_root = $(throw "-vcpkg_root=<path to vcpkg> is required"),
-  [ValidateSet('x86', 'x64', 'ARM', 'ARM64', IgnoreCase = $false)]
-  [string[]]$arch = @( "x86", "x64", "ARM", "ARM64" ),
-  [string]$mode = "all",
-  [string]$compress = "7z",
-  [switch]$release_only = $false,
-  [switch]$nupkg = $false
-)
-$ErrorActionPreference = "Stop"
-
-$vcpkg_root = Resolve-Path $vcpkg_root
-
-$vcpkg_cmake="${vcpkg_root}\scripts\buildsystems\vcpkg.cmake"
-$arch_list = $arch
-$config_list = @( "Debug", "Release" )
-if ($release_only -or $nupkg) {
-  $config_list = @(, "RelWithDebInfo")
-}
-$targets = @{ Debug = "Debug"; Release = "Retail"; RelWithDebInfo = "CommonConfiguration"}
-
-$td_root = Resolve-Path "../.."
-
-function CheckLastExitCode {
-  if ($LastExitCode -ne 0) {
-    $msg = @"
-EXE RETURNED EXIT CODE $LastExitCode
-CALLSTACK:$(Get-PSCallStack | Out-String)
-"@
-    throw $msg
-  }
-}
-
-function clean {
-  Remove-Item build-* -Force -Recurse -ErrorAction SilentlyContinue
-}
-
-function prepare {
-  New-Item -ItemType Directory -Force -Path build-native
-
-  cd build-native
-
-  cmake -A Win32 -DTD_GENERATE_SOURCE_FILES=ON -DTD_ENABLE_DOTNET=ON "$td_root"
-  CheckLastExitCode
-  cmake --build .
-  CheckLastExitCode
-
-  cd ..
-}
-
-function config {
-  New-Item -ItemType Directory -Force -Path build-uwp
-  cd build-uwp
-
-  ForEach ($arch in $arch_list) {
-    echo "Config Arch = [$arch]"
-    New-Item -ItemType Directory -Force -Path $arch
-    cd $arch
-    echo "${td_root}"
-    $fixed_arch = $arch
-    if ($arch -eq "x86") {
-      $fixed_arch = "win32"
-    }
-    cmake -A $fixed_arch -DCMAKE_SYSTEM_VERSION="10.0" -DCMAKE_SYSTEM_NAME="WindowsStore" -DCMAKE_TOOLCHAIN_FILE="$vcpkg_cmake" -DTD_ENABLE_DOTNET=ON "$td_root"
-    CheckLastExitCode
-    cd ..
-  }
-  echo "done"
-  cd ..
-}
-
-function build {
-  cd build-uwp
-  ForEach ($arch in $arch_list) {
-    echo "Build Arch = [$arch]"
-    cd $arch
-    ForEach ($config in $config_list) {
-      cmake --build . --config $config --target tddotnet
-      CheckLastExitCode
-    }
-    cd ..
-  }
-  cd ..
-}
-
-function export-vsix {
-  cd build-uwp
-  Remove-Item vsix -Force -Recurse -ErrorAction SilentlyContinue
-  New-Item -ItemType Directory -Force -Path vsix
-  cp ../SDKManifest.xml vsix
-  cp ../extension.vsixmanifest vsix
-  cp '../`[Content_Types`].xml' vsix
-  cp ../LICENSE_1_0.txt vsix
-
-  ForEach ($arch in $arch_list) {
-    New-Item -ItemType Directory -Force -Path vsix/References/CommonConfiguration/${arch}
-    ForEach ($config in $config_list) {
-      $target = $targets[$config]
-
-      New-Item -ItemType Directory -Force -Path vsix/DesignTime/${target}/${arch}
-      cp ${arch}/${config}/Telegram.Td.lib vsix/DesignTime/${target}/${arch}/
-
-      New-Item -ItemType Directory -Force -Path vsix/Redist/${target}/${arch}
-      cp ${arch}/${config}/* -include "SSLEAY*","LIBEAY*","libcrypto*","libssl*","zlib*","Telegram.Td.pdb","Telegram.Td.dll" vsix/Redist/${target}/${arch}/
-
-      cp ${arch}/${config}/* -include "Telegram.Td.pri","Telegram.Td.winmd","Telegram.Td.xml" vsix/References/CommonConfiguration/${arch}/
-    }
-  }
-
-  cd vsix
-
-  if ($compress -eq "zip") {
-    zip -r tdlib.vsix *
-  } elseif ($compress -eq "winrar") {
-    WinRAR.exe a -afzip -r -ep1 tdlib.vsix *
-  } else {
-    7z.exe a -tzip -r tdlib.vsix *
-  }
-  cd ..
-}
-
-function export-nupkg {
-  cd build-uwp
-  Remove-Item nupkg -Force -Recurse -ErrorAction SilentlyContinue
-  New-Item -ItemType Directory -Force -Path nupkg/build/native
-  cp ../LICENSE_1_0.txt nupkg
-  cp ../Telegram.Td.UWP.nuspec nupkg
-  cp ../Telegram.Td.UWP.targets nupkg/build/native
-
-  ForEach ($arch in $arch_list) {
-    $fixed_arch = $arch.ToLower();
-    New-Item -ItemType Directory -Force -Path nupkg/runtimes/win10-${fixed_arch}/native
-    New-Item -ItemType Directory -Force -Path nupkg/lib/uap10.0
-
-    ForEach ($config in $config_list) {
-      cp ${arch}/${config}/* -include "SSLEAY*","LIBEAY*","libcrypto*","libssl*","zlib*","Telegram.Td.pdb","Telegram.Td.pri","Telegram.Td.dll" nupkg/runtimes/win10-${fixed_arch}/native
-      cp ${arch}/${config}/* -include "Telegram.Td.winmd","Telegram.Td.xml" nupkg/lib/uap10.0
-    }
-  }
-
-  cd nupkg
-  nuget pack Telegram.Td.UWP.nuspec
-  cd ..
-}
-
-function run {
-  Push-Location
-  Try {
-    if ($mode -eq "clean") {
-      clean
-    }
-    if (($mode -eq "prepare") -or ($mode -eq "all")) {
-      prepare
-    }
-    if (($mode -eq "config") -or ( $mode -eq "all")) {
-      config
-    }
-    if (($mode -eq "build") -or ($mode -eq "all")) {
-      build
-    }
-    if (($mode -eq "export") -or ($mode -eq "all")) {
-      if ($nupkg) {
-        export-nupkg
-      } else {
-        export-vsix
-      }
-    }
-  } Finally {
-    Pop-Location
-  }
-}
-
-run
diff --git a/third-party/td/td/example/uwp/extension.vsixmanifest b/third-party/td/td/example/uwp/extension.vsixmanifest
deleted file mode 100644
index 85db978d4a..0000000000
--- a/third-party/td/td/example/uwp/extension.vsixmanifest
+++ /dev/null
@@ -1,17 +0,0 @@
-<PackageManifest Version="2.0.0" xmlns="http://schemas.microsoft.com/developer/vsx-schema/2011">
-  <Metadata>
-    <Identity Id="Telegram.Td.UWP" Version="1.8.46" Language="en-US" Publisher="Telegram LLC" />
-    <DisplayName>TDLib for Universal Windows Platform</DisplayName>
-    <Description>TDLib is a library for building Telegram clients</Description>
-    <MoreInfo>https://core.telegram.org/tdlib</MoreInfo>
-    <Tags>Telegram, TDLib, library, client, API</Tags>
-    <License>LICENSE_1_0.txt</License>
-    <ReleaseNotes>https://github.com/tdlib/td/blob/master/CHANGELOG.md</ReleaseNotes>
-  </Metadata>
-  <Installation Scope="Global">
-    <InstallationTarget Id="Microsoft.ExtensionSDK" TargetPlatformIdentifier="UAP" TargetPlatformVersion="v0.8.0.0" SdkName="Telegram.Td.UWP" SdkVersion="1.0" />
-  </Installation>
-  <Assets>
-    <Asset Type="Microsoft.ExtensionSDK" Path="SDKManifest.xml" />
-  </Assets>
-</PackageManifest>
diff --git a/third-party/td/td/example/web/.gitignore b/third-party/td/td/example/web/.gitignore
deleted file mode 100644
index b709ae107c..0000000000
--- a/third-party/td/td/example/web/.gitignore
+++ /dev/null
@@ -1,5 +0,0 @@
-/OpenSSL_*.tar.gz
-/openssl-OpenSSL_*/
-/tdweb/dist/
-/tdweb/node_modules/
-/tdweb/src/prebuilt/
diff --git a/third-party/td/td/example/web/README.md b/third-party/td/td/example/web/README.md
deleted file mode 100644
index e903d263a9..0000000000
--- a/third-party/td/td/example/web/README.md
+++ /dev/null
@@ -1,29 +0,0 @@
-# TDLib Web example
-
-This is an example of building `TDLib` for browsers using [Emscripten](https://github.com/kripken/emscripten).
-These scripts build `TDLib` and create an [NPM](https://www.npmjs.com/) package [tdweb](https://www.npmjs.com/package/tdweb).
-You need a Unix shell with `sed`, `tar` and `wget` utilities to run the provided scripts.
-
-## Building tdweb NPM package
-
-* Install the 3.1.1 [emsdk](https://kripken.github.io/emscripten-site/docs/getting_started/downloads.html), which is known to work. Do not use the system-provided `emscripten` package, because it contains a too old emsdk version.
-* Install all `TDLib` build dependencies described in [Building](https://github.com/tdlib/td#building) and `sed`, `tar` and `wget` utilities.
-* Run `source ./emsdk_env.sh` from `emsdk` directory to set up the correct build environment.
-* On `macOS`, install the `coreutils` [Homebrew](https://brew.sh) package and replace `realpath` in scripts with `grealpath`:
-```
-brew install coreutils
-sed -i.bak 's/[(]realpath/(grealpath/g' build-tdlib.sh
-```
-* Run build scripts in the following order:
-```
-cd <path to TDLib sources>/example/web
-./build-openssl.sh
-./build-tdlib.sh
-./copy-tdlib.sh
-./build-tdweb.sh
-```
-* The built package is now located in the `tdweb` directory.
-
-## Using tdweb NPM package
-
-See [tdweb](https://www.npmjs.com/package/tdweb) or [README.md](https://github.com/tdlib/td/tree/master/example/web/tdweb/README.md) for package documentation.
diff --git a/third-party/td/td/example/web/build-openssl.sh b/third-party/td/td/example/web/build-openssl.sh
deleted file mode 100755
index fc8063778a..0000000000
--- a/third-party/td/td/example/web/build-openssl.sh
+++ /dev/null
@@ -1,29 +0,0 @@
-#!/bin/sh
-cd $(dirname $0)
-
-emconfigure true 2> /dev/null || { echo 'emconfigure not found. Install emsdk and add emconfigure and emmake to PATH environment variable. See instruction at https://kripken.github.io/emscripten-site/docs/getting_started/downloads.html. Do not forget to add `emconfigure` and `emmake` to the PATH environment variable via `emsdk/emsdk_env.sh` script.'; exit 1; }
-emcc --check 2>&1 | grep -q ' 3.1.1 ' || { echo 'emcc 3.1.1 check failed. Install emsdk and install and activate 3.1.1 tools. See instruction at https://kripken.github.io/emscripten-site/docs/getting_started/downloads.html.'; exit 1; }
-
-OPENSSL=OpenSSL_1_1_0l
-if [ ! -f $OPENSSL.tar.gz ]; then
-  echo "Downloading OpenSSL sources..."
-  curl -sfLO https://github.com/openssl/openssl/archive/$OPENSSL.tar.gz
-fi
-rm -rf ./openssl-$OPENSSL
-echo "Unpacking OpenSSL sources..."
-tar xzf $OPENSSL.tar.gz || exit 1
-cd openssl-$OPENSSL
-
-emconfigure ./Configure linux-generic32 no-shared no-threads no-dso no-engine no-unit-test no-ui || exit 1
-sed -i.bak 's/CROSS_COMPILE=.*/CROSS_COMPILE=/g' Makefile || exit 1
-sed -i.bak 's/-ldl //g' Makefile || exit 1
-sed -i.bak 's/-O3/-Os/g' Makefile || exit 1
-echo "Building OpenSSL..."
-emmake make depend || exit 1
-emmake make -j 4 || exit 1
-
-rm -rf ../build/crypto || exit 1
-mkdir -p ../build/crypto/lib || exit 1
-cp libcrypto.a libssl.a ../build/crypto/lib/ || exit 1
-cp -r include ../build/crypto/ || exit 1
-cd ..
diff --git a/third-party/td/td/example/web/build-tdlib.sh b/third-party/td/td/example/web/build-tdlib.sh
deleted file mode 100755
index a7ea4d8d79..0000000000
--- a/third-party/td/td/example/web/build-tdlib.sh
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/bin/sh
-cd $(dirname $0)
-
-emcmake true 2> /dev/null || { echo 'emcmake not found. Install emsdk and add emcmake and emmake to PATH environment variable. See instruction at https://kripken.github.io/emscripten-site/docs/getting_started/downloads.html. Do not forget to add `emcmake` and `emmake` to the PATH environment variable via `emsdk/emsdk_env.sh` script.'; exit 1; }
-emcc --check 2>&1 | grep -q ' 3.1.1 ' || { echo 'emcc 3.1.1 check failed. Install emsdk and install and activate 3.1.1 tools. See instruction at https://kripken.github.io/emscripten-site/docs/getting_started/downloads.html.'; exit 1; }
-
-rm -rf build/generate
-rm -rf build/asmjs
-rm -rf build/wasm
-
-mkdir -p build/generate
-mkdir -p build/wasm
-
-TD_ROOT=$(realpath ../../)
-OPENSSL_ROOT=$(realpath ./build/crypto/)
-OPENSSL_CRYPTO_LIBRARY=$OPENSSL_ROOT/lib/libcrypto.a
-OPENSSL_SSL_LIBRARY=$OPENSSL_ROOT/lib/libssl.a
-
-OPENSSL_OPTIONS="-DOPENSSL_FOUND=1 \
-  -DOPENSSL_ROOT_DIR=\"$OPENSSL_ROOT\" \
-  -DOPENSSL_INCLUDE_DIR=\"$OPENSSL_ROOT/include\" \
-  -DOPENSSL_CRYPTO_LIBRARY=\"$OPENSSL_CRYPTO_LIBRARY\" \
-  -DOPENSSL_SSL_LIBRARY=\"$OPENSSL_SSL_LIBRARY\" \
-  -DOPENSSL_LIBRARIES=\"$OPENSSL_SSL_LIBRARY;$OPENSSL_CRYPTO_LIBRARY\" \
-  -DOPENSSL_VERSION=\"1.1.0l\""
-
-cd build/generate
-cmake -DTD_GENERATE_SOURCE_FILES=ON $TD_ROOT || exit 1
-cd ../..
-
-cd build/wasm
-eval emcmake cmake -DCMAKE_BUILD_TYPE=MinSizeRel $OPENSSL_OPTIONS $TD_ROOT || exit 1
-cd ../..
-
-echo "Generating TDLib autogenerated source files..."
-cmake --build build/generate || exit 1
-echo "Building TDLib to WebAssembly..."
-cmake --build build/wasm --target td_wasm || exit 1
diff --git a/third-party/td/td/example/web/build-tdweb.sh b/third-party/td/td/example/web/build-tdweb.sh
deleted file mode 100755
index 730f79a4b6..0000000000
--- a/third-party/td/td/example/web/build-tdweb.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/sh
-cd $(dirname $0)
-
-cd tdweb || exit 1
-npm install --no-save || exit 1
-npm run build || exit 1
-cd ..
diff --git a/third-party/td/td/example/web/copy-tdlib.sh b/third-party/td/td/example/web/copy-tdlib.sh
deleted file mode 100755
index d4a440c321..0000000000
--- a/third-party/td/td/example/web/copy-tdlib.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/sh
-cd $(dirname $0)
-
-DEST=tdweb/src/prebuilt/release/
-mkdir -p $DEST || exit 1
-cp build/wasm/td_wasm.js build/wasm/td_wasm.wasm $DEST || exit 1
diff --git a/third-party/td/td/example/web/tdweb/README.md b/third-party/td/td/example/web/tdweb/README.md
deleted file mode 100644
index 591bc941fb..0000000000
--- a/third-party/td/td/example/web/tdweb/README.md
+++ /dev/null
@@ -1,29 +0,0 @@
-## tdweb - TDLib in a browser
-
-[TDLib](https://github.com/tdlib/td) is a library for building Telegram clients. tdweb is a convenient wrapper for TDLib in a browser which controls TDLib instance creation,
-handles interaction with TDLib and manages a filesystem for persistent TDLib data.
-
-For interaction with TDLib, you need to create an instance of the class `TdClient`, providing a handler for incoming updates and other options if needed.
-Once this is done, you can send queries to the TDLib instance using the method `TdClient.send` which returns a Promise object representing the result of the query.
-
-See [Getting Started](https://core.telegram.org/tdlib/getting-started) for a description of basic TDLib concepts and a short introduction to TDLib usage.
-
-See the [td_api.tl](https://github.com/tdlib/td/blob/master/td/generate/scheme/td_api.tl) scheme or
-the automatically generated [HTML documentation](https://core.telegram.org/tdlib/docs/td__api_8h.html) for a list of all available
-TDLib [methods](https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_function.html) and [classes](https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_object.html).
-The JSON representation of TDLib API objects is straightforward: all API objects are represented as JSON objects with the same keys as the API object field names in the
-[td_api.tl](https://github.com/tdlib/td/blob/master/td/generate/scheme/td_api.tl) scheme. Note that in the automatically generated C++ documentation all fields have an additional terminating underscore
-which shouldn't be used in the JSON interface. The object type name is stored in the special field '@type' which is optional in places where type is uniquely determined by the context.
-Fields of Bool type are stored as Boolean, fields of int32, int53, and double types are stored as Number, fields of int64 and string types are stored as String,
-fields of bytes type are base64 encoded and then stored as String, fields of array type are stored as Array.
-You can also add the field '@extra' to any query to TDLib and the response will contain the field '@extra' with exactly the same value.
-
-## Installation
-As usual, add npm tdweb package into your project:
-```
-npm install tdweb
-```
-
-All files will be installed into `node_modules/tdweb/dist/` folder. For now, it is your responsibility to make
-those files loadable from your server. For example, [telegram-react](https://github.com/evgeny-nadymov/telegram-react)
-manually copies these files into the `public` folder. If you know how to avoid this problem, please tell us.
diff --git a/third-party/td/td/example/web/tdweb/package-lock.json b/third-party/td/td/example/web/tdweb/package-lock.json
deleted file mode 100644
index 3dc8152b77..0000000000
--- a/third-party/td/td/example/web/tdweb/package-lock.json
+++ /dev/null
@@ -1,9401 +0,0 @@
-{
-  "name": "tdweb",
-  "version": "1.8.46",
-  "lockfileVersion": 3,
-  "requires": true,
-  "packages": {
-    "": {
-      "name": "tdweb",
-      "version": "1.8.46",
-      "license": "MIT",
-      "dependencies": {
-        "@babel/runtime": "^7.4.3",
-        "broadcast-channel": "^2.1.12",
-        "localforage": "^1.7.3",
-        "uuid": "^3.3.2"
-      },
-      "devDependencies": {
-        "@babel/core": "^7.4.3",
-        "@babel/plugin-syntax-dynamic-import": "^7.2.0",
-        "@babel/plugin-transform-runtime": "^7.4.3",
-        "@babel/preset-env": "^7.4.3",
-        "@typescript-eslint/eslint-plugin": "^1.7.0",
-        "acorn": "^6.4.1",
-        "babel-eslint": "^10.0.1",
-        "babel-loader": "^8.0.5",
-        "clean-webpack-plugin": "^2.0.1",
-        "eslint": "^5.16.0",
-        "eslint-config-react-app": "^4.0.0",
-        "eslint-loader": "^2.1.2",
-        "eslint-plugin-flowtype": "^2.0.0",
-        "eslint-plugin-import": "^2.17.2",
-        "eslint-plugin-jsx-a11y": "^6.2.1",
-        "eslint-plugin-react": "^7.12.4",
-        "eslint-plugin-react-hooks": "^1.6.0",
-        "file-loader": "^3.0.1",
-        "husky": "^1.3.1",
-        "lint-staged": "^8.1.5",
-        "prettier": "^1.17.0",
-        "typescript": "^3.4.5",
-        "webpack": "^4.44.1",
-        "webpack-cli": "^3.3.12",
-        "worker-loader": "^2.0.0"
-      }
-    },
-    "node_modules/@babel/code-frame": {
-      "version": "7.25.7",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.25.7.tgz",
-      "integrity": "sha512-0xZJFNE5XMpENsgfHYTw8FbX4kv53mFLn2i3XPoq69LyhYSCBJtitaHx9QnsVTrsogI4Z3+HtEfZ2/GFPOtf5g==",
-      "dev": true,
-      "dependencies": {
-        "@babel/highlight": "^7.25.7",
-        "picocolors": "^1.0.0"
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diff --git a/third-party/td/td/example/web/tdweb/package.json b/third-party/td/td/example/web/tdweb/package.json
deleted file mode 100644
index 63590e6974..0000000000
--- a/third-party/td/td/example/web/tdweb/package.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "name": "tdweb",
-  "version": "1.8.46",
-  "description": "JavaScript interface for TDLib (Telegram library)",
-  "main": "dist/tdweb.js",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/tdlib/td.git",
-    "directory": "example/web/tdweb"
-  },
-  "files": [
-    "dist"
-  ],
-  "scripts": {
-    "build": "webpack --mode production",
-    "start": "webpack-dev-server --open"
-  },
-  "keywords": [
-    "telegram"
-  ],
-  "author": "Arseny Smirnov",
-  "license": "MIT",
-  "devDependencies": {
-    "@babel/core": "^7.4.3",
-    "@babel/plugin-syntax-dynamic-import": "^7.2.0",
-    "@babel/plugin-transform-runtime": "^7.4.3",
-    "@babel/preset-env": "^7.4.3",
-    "@typescript-eslint/eslint-plugin": "^1.7.0",
-    "acorn": "^6.4.1",
-    "babel-eslint": "^10.0.1",
-    "babel-loader": "^8.0.5",
-    "clean-webpack-plugin": "^2.0.1",
-    "eslint": "^5.16.0",
-    "eslint-config-react-app": "^4.0.0",
-    "eslint-loader": "^2.1.2",
-    "eslint-plugin-flowtype": "^2.0.0",
-    "eslint-plugin-import": "^2.17.2",
-    "eslint-plugin-jsx-a11y": "^6.2.1",
-    "eslint-plugin-react": "^7.12.4",
-    "eslint-plugin-react-hooks": "^1.6.0",
-    "file-loader": "^3.0.1",
-    "husky": "^1.3.1",
-    "lint-staged": "^8.1.5",
-    "prettier": "^1.17.0",
-    "typescript": "^3.4.5",
-    "webpack": "^4.44.1",
-    "webpack-cli": "^3.3.12",
-    "worker-loader": "^2.0.0"
-  },
-  "husky": {
-    "hooks": {
-      "pre-commit": "lint-staged"
-    }
-  },
-  "lint-staged": {
-    "linters": {
-      "webpack.config.json": [
-        "prettier --single-quote --write",
-        "git add"
-      ],
-      "package.json": [
-        "prettier --single-quote --write",
-        "git add"
-      ],
-      "src/*.{js,jsx,json,css}": [
-        "prettier --single-quote --write",
-        "git add"
-      ]
-    }
-  },
-  "dependencies": {
-    "@babel/runtime": "^7.4.3",
-    "broadcast-channel": "^2.1.12",
-    "localforage": "^1.7.3",
-    "uuid": "^3.3.2"
-  },
-  "babel": {
-    "presets": [
-      "@babel/env"
-    ],
-    "plugins": [
-      "@babel/syntax-dynamic-import",
-      "@babel/transform-runtime"
-    ]
-  },
-  "eslintConfig": {
-    "extends": "eslint-config-react-app",
-    "env": {
-      "worker": true,
-      "node": true,
-      "browser": true
-    },
-    "globals": {
-      "WebAssembly": true
-    },
-    "settings": {
-      "react": {
-        "version": "999.999.999"
-      }
-    }
-  }
-}
diff --git a/third-party/td/td/example/web/tdweb/src/index.js b/third-party/td/td/example/web/tdweb/src/index.js
deleted file mode 100644
index 16562d1c9f..0000000000
--- a/third-party/td/td/example/web/tdweb/src/index.js
+++ /dev/null
@@ -1,679 +0,0 @@
-import MyWorker from './worker.js';
-//import localforage from 'localforage';
-import BroadcastChannel from 'broadcast-channel';
-import uuid4 from 'uuid/v4';
-import log from './logger.js';
-
-const sleep = ms => new Promise(res => setTimeout(res, ms));
-
-/**
- * TDLib in a browser
- *
- * TDLib can be compiled to WebAssembly using Emscripten compiler and used in a browser from JavaScript.
- * This is a convenient wrapper for TDLib in a browser which controls TDLib instance creation, handles interaction
- * with TDLib and manages a filesystem for persistent TDLib data.
- * TDLib instance is created in a Web Worker to run it in a separate thread.
- * TdClient just sends queries to the Web Worker and receives updates and results from it.
- * <br>
- * <br>
- * Differences from the TDLib JSON API:<br>
- * 1. Added the update <code>updateFatalError error:string = Update;</code> which is sent whenever TDLib encounters a fatal error.<br>
- * 2. Added the method <code>setJsLogVerbosityLevel new_verbosity_level:string = Ok;</code>, which allows to change the verbosity level of tdweb logging.<br>
- * 3. Added the possibility to use blobs as input files via the constructor <code>inputFileBlob data:<JavaScript blob> = InputFile;</code>.<br>
- * 4. The class <code>filePart</code> contains data as a JavaScript blob instead of a base64-encoded string.<br>
- * 5. The methods <code>getStorageStatistics</code>, <code>getStorageStatisticsFast</code>, <code>optimizeStorage</code>, and <code>addProxy</code> are not supported.<br>
- * <br>
- */
-class TdClient {
-  /**
-   * @callback TdClient~updateCallback
-   * @param {Object} update The update.
-   */
-
-  /**
-   * Create TdClient.
-   * @param {Object} options - Options for TDLib instance creation.
-   * @param {TdClient~updateCallback} options.onUpdate - Callback for all incoming updates.
-   * @param {string} [options.instanceName=tdlib] - Name of the TDLib instance. Currently, only one instance of TdClient with a given name is allowed. All but one instances with the same name will be automatically closed. Usually, the newest non-background instance is kept alive. Files will be stored in an IndexedDb table with the same name.
-   * @param {boolean} [options.isBackground=false] - Pass true if the instance is opened from the background.
-   * @param {string} [options.jsLogVerbosityLevel=info] - The initial verbosity level of the JavaScript part of the code (one of 'error', 'warning', 'info', 'log', 'debug').
-   * @param {number} [options.logVerbosityLevel=2] - The initial verbosity level for the TDLib internal logging (0-1023).
-   * @param {boolean} [options.useDatabase=true] - Pass false to use TDLib without database and secret chats. It significantly improves loading time, but some functionality is unavailable without the database.
-   * @param {boolean} [options.readOnly=false] - For debug only. Pass true to open TDLib database in read-only mode
-   */
-  constructor(options) {
-    log.setVerbosity(options.jsLogVerbosityLevel);
-    this.worker = new MyWorker();
-    this.worker.onmessage = e => {
-      this.onResponse(e.data);
-    };
-    this.query_id = 0;
-    this.query_callbacks = new Map();
-    if ('onUpdate' in options) {
-      this.onUpdate = options.onUpdate;
-      delete options.onUpdate;
-    }
-    options.instanceName = options.instanceName || 'tdlib';
-    this.fileManager = new FileManager(options.instanceName, this);
-    this.worker.postMessage({ '@type': 'init', options: options });
-    this.closeOtherClients(options);
-  }
-
-  /**
-   * Send a query to TDLib.
-   *
-   * If the query contains the field '@extra', the same field will be added into the result.
-   *
-   * @param {Object} query - The query for TDLib. See the [td_api.tl]{@link https://github.com/tdlib/td/blob/master/td/generate/scheme/td_api.tl} scheme or
-   *                         the automatically generated [HTML documentation]{@link https://core.telegram.org/tdlib/docs/td__api_8h.html}
-   *                         for a list of all available TDLib [methods]{@link https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_function.html} and
-   *                         [classes]{@link https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1_object.html}.
-   * @returns {Promise} Promise object represents the result of the query.
-   */
-  send(query) {
-    return this.doSend(query, true);
-  }
-
-  /** @private */
-  sendInternal(query) {
-    return this.doSend(query, false);
-  }
-  /** @private */
-  doSend(query, isExternal) {
-    this.query_id++;
-    if (query['@extra']) {
-      query['@extra'] = {
-        '@old_extra': JSON.parse(JSON.stringify(query['@extra'])),
-        query_id: this.query_id
-      };
-    } else {
-      query['@extra'] = {
-        query_id: this.query_id
-      };
-    }
-    if (query['@type'] === 'setJsLogVerbosityLevel') {
-      log.setVerbosity(query.new_verbosity_level);
-    }
-
-    log.debug('send to worker: ', query);
-    const res = new Promise((resolve, reject) => {
-      this.query_callbacks.set(this.query_id, [resolve, reject]);
-    });
-    if (isExternal) {
-      this.externalPostMessage(query);
-    } else {
-      this.worker.postMessage(query);
-    }
-    return res;
-  }
-
-  /** @private */
-  externalPostMessage(query) {
-    const unsupportedMethods = [
-      'getStorageStatistics',
-      'getStorageStatisticsFast',
-      'optimizeStorage',
-      'addProxy',
-      'init',
-      'start'
-    ];
-    if (unsupportedMethods.includes(query['@type'])) {
-      this.onResponse({
-        '@type': 'error',
-        '@extra': query['@extra'],
-        code: 400,
-        message: "Method '" + query['@type'] + "' is not supported"
-      });
-      return;
-    }
-    if (query['@type'] === 'readFile' || query['@type'] === 'readFilePart') {
-      this.readFile(query);
-      return;
-    }
-    if (query['@type'] === 'deleteFile') {
-      this.deleteFile(query);
-      return;
-    }
-    this.worker.postMessage(query);
-  }
-
-  /** @private */
-  async readFile(query) {
-    const response = await this.fileManager.readFile(query);
-    this.onResponse(response);
-  }
-
-  /** @private */
-  async deleteFile(query) {
-    const response = this.fileManager.deleteFile(query);
-    try {
-      if (response.idb_key) {
-        await this.sendInternal({
-          '@type': 'deleteIdbKey',
-          idb_key: response.idb_key
-        });
-        delete response.idb_key;
-      }
-      await this.sendInternal({
-        '@type': 'deleteFile',
-        file_id: query.file_id
-      });
-    } catch (e) {}
-    this.onResponse(response);
-  }
-
-  /** @private */
-  onResponse(response) {
-    log.debug(
-      'receive from worker: ',
-      JSON.parse(
-        JSON.stringify(response, (key, value) => {
-          if (key === 'arr' || key === 'data') {
-            return undefined;
-          }
-          return value;
-        })
-      )
-    );
-
-    // for FileManager
-    response = this.prepareResponse(response);
-
-    if ('@extra' in response) {
-      const query_id = response['@extra'].query_id;
-      const [resolve, reject] = this.query_callbacks.get(query_id);
-      this.query_callbacks.delete(query_id);
-      if ('@old_extra' in response['@extra']) {
-        response['@extra'] = response['@extra']['@old_extra'];
-      }
-      if (resolve) {
-        if (response['@type'] === 'error') {
-          reject(response);
-        } else {
-          resolve(response);
-        }
-      }
-    } else {
-      if (response['@type'] === 'inited') {
-        this.onInited();
-        return;
-      }
-      if (response['@type'] === 'fsInited') {
-        this.onFsInited();
-        return;
-      }
-      if (
-        response['@type'] === 'updateAuthorizationState' &&
-        response.authorization_state['@type'] === 'authorizationStateClosed'
-      ) {
-        this.onClosed();
-      }
-      this.onUpdate(response);
-    }
-  }
-
-  /** @private */
-  prepareFile(file) {
-    return this.fileManager.registerFile(file);
-  }
-
-  /** @private */
-  prepareResponse(response) {
-    if (response['@type'] === 'file') {
-      if (false && Math.random() < 0.1) {
-        (async () => {
-          log.warn('DELETE FILE', response.id);
-          try {
-            await this.send({ '@type': 'deleteFile', file_id: response.id });
-          } catch (e) {}
-        })();
-      }
-      return this.prepareFile(response);
-    }
-    for (const key in response) {
-      const field = response[key];
-      if (
-        field &&
-        typeof field === 'object' &&
-        key !== 'data' &&
-        key !== 'arr'
-      ) {
-        response[key] = this.prepareResponse(field);
-      }
-    }
-    return response;
-  }
-
-  /** @private */
-  onBroadcastMessage(e) {
-    //const message = e.data;
-    const message = e;
-    if (message.uid === this.uid) {
-      log.info('ignore self broadcast message: ', message);
-      return;
-    }
-    log.info('receive broadcast message: ', message);
-    if (message.isBackground && !this.isBackground) {
-      // continue
-    } else if (
-      (!message.isBackground && this.isBackground) ||
-      message.timestamp > this.timestamp
-    ) {
-      this.close();
-      return;
-    }
-    if (message.state === 'closed') {
-      this.waitSet.delete(message.uid);
-      if (this.waitSet.size === 0) {
-        log.info('onWaitSetEmpty');
-        this.onWaitSetEmpty();
-        this.onWaitSetEmpty = () => {};
-      }
-    } else {
-      this.waitSet.add(message.uid);
-      if (message.state !== 'closing') {
-        this.postState();
-      }
-    }
-  }
-
-  /** @private */
-  postState() {
-    const state = {
-      uid: this.uid,
-      state: this.state,
-      timestamp: this.timestamp,
-      isBackground: this.isBackground
-    };
-    log.info('Post state: ', state);
-    this.channel.postMessage(state);
-  }
-
-  /** @private */
-  onWaitSetEmpty() {
-    // nop
-  }
-
-  /** @private */
-  onFsInited() {
-    this.fileManager.init();
-  }
-
-  /** @private */
-  onInited() {
-    this.isInited = true;
-    this.doSendStart();
-  }
-
-  /** @private */
-  sendStart() {
-    this.wantSendStart = true;
-    this.doSendStart();
-  }
-
-  /** @private */
-  doSendStart() {
-    if (!this.isInited || !this.wantSendStart || this.state !== 'start') {
-      return;
-    }
-    this.wantSendStart = false;
-    this.state = 'active';
-    const query = { '@type': 'start' };
-    log.info('send to worker: ', query);
-    this.worker.postMessage(query);
-  }
-
-  /** @private */
-  onClosed() {
-    this.isClosing = true;
-    this.worker.terminate();
-    log.info('worker is terminated');
-    this.state = 'closed';
-    this.postState();
-  }
-
-  /** @private */
-  close() {
-    if (this.isClosing) {
-      return;
-    }
-    this.isClosing = true;
-
-    log.info('close state: ', this.state);
-
-    if (this.state === 'start') {
-      this.onClosed();
-      this.onUpdate({
-        '@type': 'updateAuthorizationState',
-        authorization_state: {
-          '@type': 'authorizationStateClosed'
-        }
-      });
-      return;
-    }
-
-    const query = { '@type': 'close' };
-    log.info('send to worker: ', query);
-    this.worker.postMessage(query);
-
-    this.state = 'closing';
-    this.postState();
-  }
-
-  /** @private */
-  async closeOtherClients(options) {
-    this.uid = uuid4();
-    this.state = 'start';
-    this.isBackground = !!options.isBackground;
-    this.timestamp = Date.now();
-    this.waitSet = new Set();
-
-    log.info('close other clients');
-    this.channel = new BroadcastChannel(options.instanceName, {
-      webWorkerSupport: false
-    });
-
-    this.postState();
-
-    this.channel.onmessage = message => {
-      this.onBroadcastMessage(message);
-    };
-
-    await sleep(300);
-    if (this.waitSet.size !== 0) {
-      await new Promise(resolve => {
-        this.onWaitSetEmpty = resolve;
-      });
-    }
-    this.sendStart();
-  }
-
-  /** @private */
-  onUpdate(update) {
-    log.info('ignore onUpdate');
-    //nop
-  }
-}
-
-/** @private */
-class ListNode {
-  constructor(value) {
-    this.value = value;
-    this.clear();
-  }
-
-  erase() {
-    this.prev.connect(this.next);
-    this.clear();
-  }
-  clear() {
-    this.prev = this;
-    this.next = this;
-  }
-
-  connect(other) {
-    this.next = other;
-    other.prev = this;
-  }
-
-  onUsed(other) {
-    other.usedAt = Date.now();
-    other.erase();
-    other.connect(this.next);
-    log.debug('LRU: used file_id: ', other.value);
-    this.connect(other);
-  }
-
-  getLru() {
-    if (this === this.next) {
-      throw new Error('popLru from empty list');
-    }
-    return this.prev;
-  }
-}
-
-/** @private */
-class FileManager {
-  constructor(instanceName, client) {
-    this.instanceName = instanceName;
-    this.cache = new Map();
-    this.pending = [];
-    this.transaction_id = 0;
-    this.totalSize = 0;
-    this.lru = new ListNode(-1);
-    this.client = client;
-  }
-
-  init() {
-    this.idb = new Promise((resolve, reject) => {
-      const request = indexedDB.open(this.instanceName);
-      request.onsuccess = () => resolve(request.result);
-      request.onerror = () => reject(request.error);
-    });
-    //this.store = localforage.createInstance({
-    //name: instanceName
-    //});
-    this.isInited = true;
-  }
-
-  unload(info) {
-    if (info.arr) {
-      log.debug(
-        'LRU: delete file_id: ',
-        info.node.value,
-        ' with arr.length: ',
-        info.arr.length
-      );
-      this.totalSize -= info.arr.length;
-      delete info.arr;
-    }
-    if (info.node) {
-      info.node.erase();
-      delete info.node;
-    }
-  }
-
-  registerFile(file) {
-    if (file.idb_key || file.arr) {
-      file.local.is_downloading_completed = true;
-    } else {
-      file.local.is_downloading_completed = false;
-    }
-    let info = {};
-    const cached_info = this.cache.get(file.id);
-    if (cached_info) {
-      info = cached_info;
-    } else {
-      this.cache.set(file.id, info);
-    }
-    if (file.idb_key) {
-      info.idb_key = file.idb_key;
-      delete file.idb_key;
-    } else {
-      delete info.idb_key;
-    }
-    if (file.arr) {
-      const now = Date.now();
-      while (this.totalSize > 100000000) {
-        const node = this.lru.getLru();
-        // immunity for 60 seconds
-        if (node.usedAt + 60 * 1000 > now) {
-          break;
-        }
-        const lru_info = this.cache.get(node.value);
-        this.unload(lru_info);
-      }
-
-      if (info.arr) {
-        log.warn('Receive file.arr at least twice for the same file');
-        this.totalSize -= info.arr.length;
-      }
-      info.arr = file.arr;
-      delete file.arr;
-      this.totalSize += info.arr.length;
-      if (!info.node) {
-        log.debug(
-          'LRU: create file_id: ',
-          file.id,
-          ' with arr.length: ',
-          info.arr.length
-        );
-        info.node = new ListNode(file.id);
-      }
-      this.lru.onUsed(info.node);
-      log.info('Total file.arr size: ', this.totalSize);
-    }
-    info.file = file;
-    return file;
-  }
-
-  async flushLoad() {
-    const pending = this.pending;
-    this.pending = [];
-    const idb = await this.idb;
-    const transaction_id = this.transaction_id++;
-    const read = idb
-      .transaction(['keyvaluepairs'], 'readonly')
-      .objectStore('keyvaluepairs');
-    log.debug('Load group of files from idb', pending.length);
-    for (const query of pending) {
-      const request = read.get(query.key);
-      request.onsuccess = event => {
-        const blob = event.target.result;
-        if (blob) {
-          if (blob.size === 0) {
-            log.error('Receive empty blob from db ', query.key);
-          }
-          query.resolve({ data: blob, transaction_id: transaction_id });
-        } else {
-          query.reject();
-        }
-      };
-      request.onerror = () => query.reject(request.error);
-    }
-  }
-
-  load(key, resolve, reject) {
-    if (this.pending.length === 0) {
-      setTimeout(() => {
-        this.flushLoad();
-      }, 1);
-    }
-    this.pending.push({ key: key, resolve: resolve, reject: reject });
-  }
-
-  async doLoadFull(info) {
-    if (info.arr) {
-      return { data: new Blob([info.arr]), transaction_id: -1 };
-    }
-    if (info.idb_key) {
-      const idb_key = info.idb_key;
-      //return this.store.getItem(idb_key);
-      return await new Promise((resolve, reject) => {
-        this.load(idb_key, resolve, reject);
-      });
-    }
-    throw new Error('File is not loaded');
-  }
-  async doLoad(info, offset, size) {
-    if (!info.arr && !info.idb_key && info.file.local.path) {
-      try {
-        const count = await this.client.sendInternal({
-          '@type': 'getFileDownloadedPrefixSize',
-          file_id: info.file.id,
-          offset: offset
-        });
-        //log.error(count, size);
-        if (!size) {
-          size = count.count;
-        } else if (size > count.count) {
-          throw new Error('File not loaded yet');
-        }
-        const res = await this.client.sendInternal({
-          '@type': 'readFilePart',
-          path: info.file.local.path,
-          offset: offset,
-          count: size
-        });
-        res.data = new Blob([res.data]);
-        res.transaction_id = -2;
-        //log.error(res);
-        return res;
-      } catch (e) {
-        log.info('readFilePart failed', info, offset, size, e);
-      }
-    }
-
-    const res = await this.doLoadFull(info);
-
-    // return slice(size, offset + size)
-    const data_size = res.data.size;
-    if (!size) {
-      size = data_size;
-    }
-    if (offset > data_size) {
-      offset = data_size;
-    }
-    res.data = res.data.slice(offset, offset + size);
-    return res;
-  }
-
-  doDelete(info) {
-    this.unload(info);
-    return info.idb_key;
-  }
-
-  async readFile(query) {
-    try {
-      if (!this.isInited) {
-        throw new Error('FileManager is not inited');
-      }
-      const info = this.cache.get(query.file_id);
-      if (!info) {
-        throw new Error('File is not loaded');
-      }
-      if (info.node) {
-        this.lru.onUsed(info.node);
-      }
-      query.offset = query.offset || 0;
-      query.size = query.count || query.size || 0;
-      const response = await this.doLoad(info, query.offset, query.size);
-      return {
-        '@type': 'filePart',
-        '@extra': query['@extra'],
-        data: response.data,
-        transaction_id: response.transaction_id
-      };
-    } catch (e) {
-      return {
-        '@type': 'error',
-        '@extra': query['@extra'],
-        code: 400,
-        message: e
-      };
-    }
-  }
-
-  deleteFile(query) {
-    const res = {
-      '@type': 'ok',
-      '@extra': query['@extra']
-    };
-    try {
-      if (!this.isInited) {
-        throw new Error('FileManager is not inited');
-      }
-      const info = this.cache.get(query.file_id);
-      if (!info) {
-        throw new Error('File is not loaded');
-      }
-      const idb_key = this.doDelete(info);
-      if (idb_key) {
-        res.idb_key = idb_key;
-      }
-    } catch (e) {}
-    return res;
-  }
-}
-
-export default TdClient;
diff --git a/third-party/td/td/example/web/tdweb/src/logger.js b/third-party/td/td/example/web/tdweb/src/logger.js
deleted file mode 100644
index 95baed0318..0000000000
--- a/third-party/td/td/example/web/tdweb/src/logger.js
+++ /dev/null
@@ -1,47 +0,0 @@
-class Logger {
-  constructor() {
-    this.setVerbosity('WARNING');
-  }
-  debug(...str) {
-    if (this.checkVerbosity(4)) {
-      console.log(...str);
-    }
-  }
-  log(...str) {
-    if (this.checkVerbosity(4)) {
-      console.log(...str);
-    }
-  }
-  info(...str) {
-    if (this.checkVerbosity(3)) {
-      console.info(...str);
-    }
-  }
-  warn(...str) {
-    if (this.checkVerbosity(2)) {
-      console.warn(...str);
-    }
-  }
-  error(...str) {
-    if (this.checkVerbosity(1)) {
-      console.error(...str);
-    }
-  }
-  setVerbosity(level, default_level = 'info') {
-    if (level === undefined) {
-      level = default_level;
-    }
-    if (typeof level === 'string') {
-      level =
-        { ERROR: 1, WARNING: 2, INFO: 3, LOG: 4, DEBUG: 4 }[
-          level.toUpperCase()
-        ] || 2;
-    }
-    this.level = level;
-  }
-  checkVerbosity(level) {
-    return this.level >= level;
-  }
-}
-let log = new Logger();
-export default log;
diff --git a/third-party/td/td/example/web/tdweb/src/wasm-utils.js b/third-party/td/td/example/web/tdweb/src/wasm-utils.js
deleted file mode 100644
index 50447d65b3..0000000000
--- a/third-party/td/td/example/web/tdweb/src/wasm-utils.js
+++ /dev/null
@@ -1,136 +0,0 @@
-// 1. +++ fetchAndInstantiate() +++ //
-
-// This library function fetches the wasm module at 'url', instantiates it with
-// the given 'importObject', and returns the instantiated object instance
-
-export async function instantiateStreaming(url, importObject) {
-  let result = await WebAssembly.instantiateStreaming(fetch(url), importObject);
-  return result.instance;
-}
-export function fetchAndInstantiate(url, importObject) {
-  return fetch(url)
-    .then(response => response.arrayBuffer())
-    .then(bytes => WebAssembly.instantiate(bytes, importObject))
-    .then(results => results.instance);
-}
-
-// 2. +++ instantiateCachedURL() +++ //
-
-// This library function fetches the wasm Module at 'url', instantiates it with
-// the given 'importObject', and returns a Promise resolving to the finished
-// wasm Instance. Additionally, the function attempts to cache the compiled wasm
-// Module in IndexedDB using 'url' as the key. The entire site's wasm cache (not
-// just the given URL) is versioned by dbVersion and any change in dbVersion on
-// any call to instantiateCachedURL() will conservatively clear out the entire
-// cache to avoid stale modules.
-export function instantiateCachedURL(dbVersion, url, importObject) {
-  const dbName = 'wasm-cache';
-  const storeName = 'wasm-cache';
-
-  // This helper function Promise-ifies the operation of opening an IndexedDB
-  // database and clearing out the cache when the version changes.
-  function openDatabase() {
-    return new Promise((resolve, reject) => {
-      var request = indexedDB.open(dbName, dbVersion);
-      request.onerror = reject.bind(null, 'Error opening wasm cache database');
-      request.onsuccess = () => {
-        resolve(request.result);
-      };
-      request.onupgradeneeded = event => {
-        var db = request.result;
-        if (db.objectStoreNames.contains(storeName)) {
-          console.log(`Clearing out version ${event.oldVersion} wasm cache`);
-          db.deleteObjectStore(storeName);
-        }
-        console.log(`Creating version ${event.newVersion} wasm cache`);
-        db.createObjectStore(storeName);
-      };
-    });
-  }
-
-  // This helper function Promise-ifies the operation of looking up 'url' in the
-  // given IDBDatabase.
-  function lookupInDatabase(db) {
-    return new Promise((resolve, reject) => {
-      var store = db.transaction([storeName]).objectStore(storeName);
-      var request = store.get(url);
-      request.onerror = reject.bind(null, `Error getting wasm module ${url}`);
-      request.onsuccess = event => {
-        if (request.result) resolve(request.result);
-        else reject(`Module ${url} was not found in wasm cache`);
-      };
-    });
-  }
-
-  // This helper function fires off an async operation to store the given wasm
-  // Module in the given IDBDatabase.
-  function storeInDatabase(db, module) {
-    var store = db.transaction([storeName], 'readwrite').objectStore(storeName);
-    var request = store.put(module, url);
-    request.onerror = err => {
-      console.log(`Failed to store in wasm cache: ${err}`);
-    };
-    request.onsuccess = err => {
-      console.log(`Successfully stored ${url} in wasm cache`);
-    };
-  }
-
-  // This helper function fetches 'url', compiles it into a Module,
-  // instantiates the Module with the given import object.
-  function fetchAndInstantiate() {
-    return fetch(url)
-      .then(response => response.arrayBuffer())
-      .then(buffer => WebAssembly.instantiate(buffer, importObject));
-  }
-
-  // With all the Promise helper functions defined, we can now express the core
-  // logic of an IndexedDB cache lookup. We start by trying to open a database.
-  return openDatabase().then(
-    db => {
-      // Now see if we already have a compiled Module with key 'url' in 'db':
-      return lookupInDatabase(db).then(
-        module => {
-          // We do! Instantiate it with the given import object.
-          console.log(`Found ${url} in wasm cache`);
-          return WebAssembly.instantiate(module, importObject);
-        },
-        errMsg => {
-          // Nope! Compile from scratch and then store the compiled Module in 'db'
-          // with key 'url' for next time.
-          console.log(errMsg);
-          return fetchAndInstantiate().then(results => {
-            try {
-              storeInDatabase(db, results.module);
-            } catch (e) {
-              console.log('Failed to store module into db');
-            }
-            return results.instance;
-          });
-        }
-      );
-    },
-    errMsg => {
-      // If opening the database failed (due to permissions or quota), fall back
-      // to simply fetching and compiling the module and don't try to store the
-      // results.
-      console.log(errMsg);
-      return fetchAndInstantiate().then(results => results.instance);
-    }
-  );
-}
-
-export async function instantiateAny(version, url, importObject) {
-  console.log("instantiate");
-  try {
-    return await instantiateStreaming(url, importObject);
-  } catch (e) {
-    console.log("instantiateStreaming failed", e);
-  }
-  try {
-    return await instantiateCachedURL(version, url, importObject);
-  } catch (e) {
-    console.log("instantiateCachedURL failed", e);
-  }
-  throw new Error("can't instantiate wasm");
-}
-
diff --git a/third-party/td/td/example/web/tdweb/src/worker.js b/third-party/td/td/example/web/tdweb/src/worker.js
deleted file mode 100644
index ef4bc98ee8..0000000000
--- a/third-party/td/td/example/web/tdweb/src/worker.js
+++ /dev/null
@@ -1,996 +0,0 @@
-import localforage from 'localforage';
-import log from './logger.js';
-import { instantiateAny } from './wasm-utils.js';
-
-import td_wasm_release from './prebuilt/release/td_wasm.wasm';
-
-const tdlibVersion = 6;
-const localForageDrivers = [
-  localforage.INDEXEDDB,
-  localforage.LOCALSTORAGE,
-  'memoryDriver'
-];
-
-async function initLocalForage() {
-  // Implement the driver here.
-  const memoryDriver = {
-    _driver: 'memoryDriver',
-    _initStorage: function(options) {
-      const dbInfo = {};
-      if (options) {
-        for (const i in options) {
-          dbInfo[i] = options[i];
-        }
-      }
-      this._dbInfo = dbInfo;
-      this._map = new Map();
-    },
-    clear: async function() {
-      this._map.clear();
-    },
-    getItem: async function(key) {
-      const value = this._map.get(key);
-      console.log('getItem', this._map, key, value);
-      return value;
-    },
-    iterate: async function(iteratorCallback) {
-      log.error('iterate is not supported');
-    },
-    key: async function(n) {
-      log.error('key n is not supported');
-    },
-    keys: async function() {
-      return this._map.keys();
-    },
-    length: async function() {
-      return this._map.size();
-    },
-    removeItem: async function(key) {
-      this._map.delete(key);
-    },
-    setItem: async function(key, value) {
-      const originalValue = this._map.get(key);
-      console.log('setItem', this._map, key, value);
-      this._map.set(key, value);
-      return originalValue;
-    }
-  };
-
-  // Add the driver to localForage.
-  localforage.defineDriver(memoryDriver);
-}
-
-async function loadTdlibWasm(onFS, wasmUrl) {
-  console.log('loadTdlibWasm');
-  const td_module = await import('./prebuilt/release/td_wasm.js');
-  const createTdwebModule = td_module.default;
-  log.info('receive td_wasm.js', td_module, createTdwebModule);
-  let td_wasm = td_wasm_release;
-  if (wasmUrl) {
-    td_wasm = wasmUrl;
-  }
-  let module = createTdwebModule({
-    onRuntimeInitialized: () => {
-      log.info('runtime intialized');
-      onFS(module.FS);
-    },
-    instantiateWasm: (imports, successCallback) => {
-      log.info('start instantiateWasm', td_wasm, imports);
-      const next = instance => {
-        log.info('finish instantiateWasm');
-        successCallback(instance);
-      };
-      instantiateAny(tdlibVersion, td_wasm, imports).then(next);
-      return {};
-    }
-  });
-  log.info('Wait module');
-  module = await module;
-  log.info('Loaded module', module);
-  //onFS(module.FS);
-  return module;
-}
-
-async function loadTdlib(onFS, wasmUrl) {
-  const wasmSupported = (() => {
-    try {
-      if (
-        typeof WebAssembly === 'object' &&
-        typeof WebAssembly.instantiate === 'function'
-      ) {
-        const module = new WebAssembly.Module(
-          Uint8Array.of(0x0, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00)
-        );
-        if (module instanceof WebAssembly.Module)
-          return (
-            new WebAssembly.Instance(module) instanceof WebAssembly.Instance
-          );
-      }
-    } catch (e) {}
-    return false;
-  })();
-  if (!wasmSupported) {
-    log.error('WebAssembly is not supported, trying to use it anyway');
-  }
-
-  return loadTdlibWasm(onFS, wasmUrl);
-}
-
-class OutboundFileSystem {
-  constructor(root, FS) {
-    this.root = root;
-    this.nextFileId = 0;
-    this.FS = FS;
-    this.files = new Set();
-    FS.mkdir(root);
-  }
-  blobToPath(blob, name) {
-    const dir = this.root + '/' + this.nextFileId;
-    if (!name) {
-      name = 'blob';
-    }
-    this.nextFileId++;
-    this.FS.mkdir(dir);
-    this.FS.mount(
-      this.FS.filesystems.WORKERFS,
-      {
-        blobs: [{ name: name, data: blob }]
-      },
-      dir
-    );
-    const path = dir + '/' + name;
-    this.files.add(path);
-    return path;
-  }
-
-  forgetPath(path) {
-    if (this.files.has(path)) {
-      this.FS.unmount(path);
-      this.files.delete(path);
-    }
-  }
-}
-
-class InboundFileSystem {
-  static async create(dbName, root, FS_promise) {
-    const start = performance.now();
-    try {
-      const ifs = new InboundFileSystem();
-      ifs.pending = [];
-      ifs.pendingHasTimeout = false;
-      ifs.persistCount = 0;
-      ifs.persistSize = 0;
-      ifs.pendingI = 0;
-      ifs.inPersist = false;
-      ifs.totalCount = 0;
-
-      ifs.root = root;
-
-      //ifs.store = localforage.createInstance({
-      //name: dbName,
-      //driver: localForageDrivers
-      //});
-      log.debug('IDB name: ' + dbName);
-      ifs.idb = new Promise((resolve, reject) => {
-        const request = indexedDB.open(dbName);
-        request.onsuccess = () => resolve(request.result);
-        request.onerror = () => reject(request.error);
-        request.onupgradeneeded = () => {
-          request.result.createObjectStore('keyvaluepairs');
-        };
-      });
-
-      ifs.load_pids();
-
-      const FS = await FS_promise;
-      await ifs.idb;
-      ifs.FS = FS;
-      ifs.FS.mkdir(root);
-      const create_time = (performance.now() - start) / 1000;
-      log.debug('InboundFileSystem::create ' + create_time);
-      return ifs;
-    } catch (e) {
-      log.error('Failed to init Inbound FileSystem: ', e);
-    }
-  }
-
-  async load_pids() {
-    const keys_start = performance.now();
-    log.debug('InboundFileSystem::create::keys start');
-    //const keys = await this.store.keys();
-
-    let idb = await this.idb;
-    let read = idb
-      .transaction(['keyvaluepairs'], 'readonly')
-      .objectStore('keyvaluepairs');
-    const keys = await new Promise((resolve, reject) => {
-      const request = read.getAllKeys();
-      request.onsuccess = () => resolve(request.result);
-      request.onerror = () => reject(request.error);
-    });
-
-    const keys_time = (performance.now() - keys_start) / 1000;
-    log.debug(
-      'InboundFileSystem::create::keys ' + keys_time + ' ' + keys.length
-    );
-    this.pids = new Set(keys);
-  }
-
-  has(pid) {
-    if (!this.pids) {
-      return true;
-    }
-
-    return this.pids.has(pid);
-  }
-
-  forget(pid) {
-    if (this.pids) {
-      this.pids.delete(pid);
-    }
-  }
-
-  async doPersist(pid, path, arr, resolve, reject, write) {
-    this.persistCount++;
-    let size = arr.length;
-    this.persistSize += size;
-    try {
-      //log.debug('persist.do start', pid, path, arr.length);
-      //await this.store.setItem(pid, new Blob([arr]));
-      await new Promise((resolve, reject) => {
-        const request = write.put(new Blob([arr]), pid);
-        request.onsuccess = () => resolve(request.result);
-        request.onerror = () => reject(request.error);
-      });
-      if (this.pids) {
-        this.pids.add(pid);
-      }
-      this.FS.unlink(path);
-    } catch (e) {
-      log.error('Failed persist ' + path + ' ', e);
-    }
-    //log.debug('persist.do finish', pid, path, arr.length);
-    this.persistCount--;
-    this.persistSize -= size;
-    resolve();
-
-    this.tryFinishPersist();
-  }
-
-  async flushPersist() {
-    if (this.inPersist) {
-      return;
-    }
-    log.debug('persist.flush');
-    this.inPersist = true;
-    let idb = await this.idb;
-    this.writeBegin = performance.now();
-    let write = idb
-      .transaction(['keyvaluepairs'], 'readwrite')
-      .objectStore('keyvaluepairs');
-    while (
-      this.pendingI < this.pending.length &&
-      this.persistCount < 20 &&
-      this.persistSize < 50 << 20
-    ) {
-      var q = this.pending[this.pendingI];
-      this.pending[this.pendingI] = null;
-      // TODO: add to transaction
-      this.doPersist(q.pid, q.path, q.arr, q.resolve, q.reject, write);
-      this.pendingI++;
-      this.totalCount++;
-    }
-    log.debug(
-      'persist.flush transaction cnt=' +
-        this.persistCount +
-        ', size=' +
-        this.persistSize
-    );
-    this.inPersist = false;
-    this.tryFinishPersist();
-  }
-
-  async tryFinishPersist() {
-    if (this.inPersist) {
-      return;
-    }
-    if (this.persistCount !== 0) {
-      return;
-    }
-    log.debug('persist.finish ' + (performance.now() - this.writeBegin) / 1000);
-    if (this.pendingI === this.pending.length) {
-      this.pending = [];
-      this.pendingHasTimeout = false;
-      this.pendingI = 0;
-      log.debug('persist.finish done');
-      return;
-    }
-    log.debug('persist.finish continue');
-    this.flushPersist();
-  }
-
-  async persist(pid, path, arr) {
-    if (!this.pendingHasTimeout) {
-      this.pendingHasTimeout = true;
-      log.debug('persist set timeout');
-      setTimeout(() => {
-        this.flushPersist();
-      }, 1);
-    }
-    await new Promise((resolve, reject) => {
-      this.pending.push({
-        pid: pid,
-        path: path,
-        arr: arr,
-        resolve: resolve,
-        reject: reject
-      });
-    });
-  }
-
-  async unlink(pid) {
-    log.debug('Unlink ' + pid);
-    try {
-      this.forget(pid);
-      //await this.store.removeItem(pid);
-      let idb = await this.idb;
-      await new Promise((resolve, reject) => {
-        let write = idb
-          .transaction(['keyvaluepairs'], 'readwrite')
-          .objectStore('keyvaluepairs');
-        const request = write.delete(pid);
-        request.onsuccess = () => resolve(request.result);
-        request.onerror = () => reject(request.error);
-      });
-    } catch (e) {
-      log.error('Failed unlink ' + pid + ' ', e);
-    }
-  }
-}
-
-class DbFileSystem {
-  static async create(root, FS_promise, readOnly = false) {
-    const start = performance.now();
-    try {
-      const dbfs = new DbFileSystem();
-      dbfs.root = root;
-      const FS = await FS_promise;
-      dbfs.FS = FS;
-      dbfs.syncfs_total_time = 0;
-      dbfs.readOnly = readOnly;
-      dbfs.syncActive = 0;
-      FS.mkdir(root);
-      FS.mount(FS.filesystems.IDBFS, {}, root);
-
-      await new Promise((resolve, reject) => {
-        FS.syncfs(true, err => {
-          resolve();
-        });
-      });
-
-      const rmrf = path => {
-        log.debug('rmrf ', path);
-        let info;
-        try {
-          info = FS.lookupPath(path);
-        } catch (e) {
-          return;
-        }
-        log.debug('rmrf ', path, info);
-        if (info.node.isFolder) {
-          for (const key in info.node.contents) {
-            rmrf(info.path + '/' + info.node.contents[key].name);
-          }
-          log.debug('rmdir ', path);
-          FS.rmdir(path);
-        } else {
-          log.debug('unlink ', path);
-          FS.unlink(path);
-        }
-      };
-      //const dirs = ['thumbnails', 'profile_photos', 'secret', 'stickers', 'temp', 'wallpapers', 'secret_thumbnails', 'passport'];
-      const dirs = [];
-      const root_dir = FS.lookupPath(root);
-      for (const key in root_dir.node.contents) {
-        const value = root_dir.node.contents[key];
-        log.debug('node ', key, value);
-        if (!value.isFolder) {
-          continue;
-        }
-        dirs.push(root_dir.path + '/' + value.name);
-      }
-      for (const i in dirs) {
-        const dir = dirs[i];
-        rmrf(dir);
-        //FS.mkdir(dir);
-        //FS.mount(FS.filesystems.MEMFS, {}, dir);
-      }
-      dbfs.syncfsInterval = setInterval(() => {
-        dbfs.sync();
-      }, 5000);
-      const create_time = (performance.now() - start) / 1000;
-      log.debug('DbFileSystem::create ' + create_time);
-      return dbfs;
-    } catch (e) {
-      log.error('Failed to init DbFileSystem: ', e);
-    }
-  }
-  async sync(force) {
-    if (this.readOnly) {
-      return;
-    }
-    if (this.syncActive > 0 && !force) {
-      log.debug('SYNC: skip');
-      return;
-    }
-    this.syncActive++;
-    const start = performance.now();
-    await new Promise((resolve, reject) => {
-      this.FS.syncfs(false, () => {
-        const syncfs_time = (performance.now() - start) / 1000;
-        this.syncfs_total_time += syncfs_time;
-        log.debug('SYNC: ' + syncfs_time);
-        log.debug('SYNC total: ' + this.syncfs_total_time);
-        resolve();
-      });
-    });
-    this.syncActive--;
-  }
-  async close() {
-    clearInterval(this.syncfsInterval);
-    await this.sync(true);
-  }
-  async destroy() {
-    clearInterval(this.syncfsInterval);
-    if (this.readOnly) {
-      return;
-    }
-    this.FS.unmount(this.root);
-    const req = indexedDB.deleteDatabase(this.root);
-    await new Promise((resolve, reject) => {
-      req.onsuccess = function(e) {
-        log.info('SUCCESS');
-        resolve(e.result);
-      };
-      req.onerror = function(e) {
-        log.info('ONERROR');
-        reject(e.error);
-      };
-      req.onblocked = function(e) {
-        log.info('ONBLOCKED');
-        reject('blocked');
-      };
-    });
-  }
-}
-
-class TdFileSystem {
-  static async init_fs(prefix, FS_promise) {
-    const FS = await FS_promise;
-    FS.mkdir(prefix);
-    return FS;
-  }
-  static async create(instanceName, FS_promise, readOnly = false) {
-    try {
-      const tdfs = new TdFileSystem();
-      const prefix = '/' + instanceName;
-      tdfs.prefix = prefix;
-      FS_promise = TdFileSystem.init_fs(prefix, FS_promise);
-
-      //MEMFS. Store to IDB and delete files as soon as possible
-      const inboundFileSystem = InboundFileSystem.create(
-        instanceName,
-        prefix + '/inboundfs',
-        FS_promise
-      );
-
-      //IDBFS. MEMFS which is flushed to IDB from time to time
-      const dbFileSystem = DbFileSystem.create(
-        prefix + '/dbfs',
-        FS_promise,
-        readOnly
-      );
-
-      const FS = await FS_promise;
-      tdfs.FS = FS;
-
-      //WORKERFS. Temporary stores Blobs for outbound files
-      tdfs.outboundFileSystem = new OutboundFileSystem(
-        prefix + '/outboundfs',
-        tdfs.FS
-      );
-
-      tdfs.inboundFileSystem = await inboundFileSystem;
-      tdfs.dbFileSystem = await dbFileSystem;
-      return tdfs;
-    } catch (e) {
-      log.error('Failed to init TdFileSystem: ', e);
-    }
-  }
-  async destroy() {
-    await this.dbFileSystem.destroy();
-  }
-}
-
-class TdClient {
-  constructor(callback) {
-    log.info('Start worker');
-    this.pendingQueries = [];
-    this.isPending = true;
-    this.callback = callback;
-    this.wasInit = false;
-  }
-
-  async testLocalForage() {
-    await initLocalForage();
-    const DRIVERS = [
-      localforage.INDEXEDDB,
-      'memoryDriver',
-      localforage.LOCALSTORAGE,
-      localforage.WEBSQL,
-      localForageDrivers
-    ];
-    for (const driverName of DRIVERS) {
-      console.log('Test ', driverName);
-      try {
-        await localforage.setDriver(driverName);
-        console.log('A');
-        await localforage.setItem('hello', 'world');
-        console.log('B');
-        const x = await localforage.getItem('hello');
-        console.log('receive ', x);
-        await localforage.clear();
-        console.log('C');
-      } catch (error) {
-        console.log('Error', error);
-      }
-    }
-  }
-
-  async init(options) {
-    if (this.wasInit) {
-      return;
-    }
-    //await this.testLocalForage();
-    log.setVerbosity(options.jsLogVerbosityLevel);
-    this.wasInit = true;
-
-    options = options || {};
-
-    const FS_promise = new Promise(resolve => {
-      this.onFS = resolve;
-    });
-
-    const tdfs_promise = TdFileSystem.create(
-      options.instanceName,
-      FS_promise,
-      options.readOnly
-    );
-
-    this.useDatabase = true;
-    if ('useDatabase' in options) {
-      this.useDatabase = options.useDatabase;
-    }
-
-    log.info('load TdModule');
-    this.TdModule = await loadTdlib(this.onFS, options.wasmUrl);
-    log.info('loaded TdModule');
-    this.td_functions = {
-      td_create: this.TdModule.cwrap(
-        'td_emscripten_create_client_id',
-        'number',
-        []
-      ),
-      td_send: this.TdModule.cwrap('td_emscripten_send', null, [
-        'number',
-        'string'
-      ]),
-      td_execute: this.TdModule.cwrap('td_emscripten_execute', 'string', [
-        'string'
-      ]),
-      td_receive: this.TdModule.cwrap('td_emscripten_receive', 'string', []),
-      td_set_verbosity: verbosity => {
-        this.td_functions.td_execute(
-          JSON.stringify({
-            '@type': 'setLogVerbosityLevel',
-            new_verbosity_level: verbosity
-          })
-        );
-      },
-      td_get_timeout: this.TdModule.cwrap(
-        'td_emscripten_get_timeout',
-        'number',
-        []
-      )
-    };
-    //this.onFS(this.TdModule.FS);
-    this.FS = this.TdModule.FS;
-    this.TdModule['websocket']['on']('error', error => {
-      this.scheduleReceiveSoon();
-    });
-    this.TdModule['websocket']['on']('open', fd => {
-      this.scheduleReceiveSoon();
-    });
-    this.TdModule['websocket']['on']('listen', fd => {
-      this.scheduleReceiveSoon();
-    });
-    this.TdModule['websocket']['on']('connection', fd => {
-      this.scheduleReceiveSoon();
-    });
-    this.TdModule['websocket']['on']('message', fd => {
-      this.scheduleReceiveSoon();
-    });
-    this.TdModule['websocket']['on']('close', fd => {
-      this.scheduleReceiveSoon();
-    });
-
-    // wait till it is allowed to start
-    this.callback({ '@type': 'inited' });
-    await new Promise(resolve => {
-      this.onStart = resolve;
-    });
-    this.isStarted = true;
-
-    log.info('may start now');
-    if (this.isClosing) {
-      return;
-    }
-    log.info('FS start init');
-    this.tdfs = await tdfs_promise;
-    log.info('FS inited');
-    this.callback({ '@type': 'fsInited' });
-
-    // no async initialization after this point
-    if (options.logVerbosityLevel === undefined) {
-      options.logVerbosityLevel = 2;
-    }
-    this.td_functions.td_set_verbosity(options.logVerbosityLevel);
-    this.client_id = this.td_functions.td_create();
-
-    this.savingFiles = new Map();
-    this.send({
-      '@type': 'setOption',
-      name: 'store_all_files_in_files_directory',
-      value: {
-        '@type': 'optionValueBoolean',
-        value: true
-      }
-    });
-    this.send({
-      '@type': 'setOption',
-      name: 'language_pack_database_path',
-      value: {
-        '@type': 'optionValueString',
-        value: this.tdfs.dbFileSystem.root + '/language'
-      }
-    });
-    this.send({
-      '@type': 'setOption',
-      name: 'ignore_background_updates',
-      value: {
-        '@type': 'optionValueBoolean',
-        value: !this.useDatabase
-      }
-    });
-
-    this.flushPendingQueries();
-
-    this.receive();
-  }
-
-  prepareQueryRecursive(query) {
-    if (query['@type'] === 'inputFileBlob') {
-      return {
-        '@type': 'inputFileLocal',
-        path: this.tdfs.outboundFileSystem.blobToPath(query.data, query.name)
-      };
-    }
-    for (const key in query) {
-      const field = query[key];
-      if (field && typeof field === 'object') {
-        query[key] = this.prepareQueryRecursive(field);
-      }
-    }
-    return query;
-  }
-
-  prepareQuery(query) {
-    if (query['@type'] === 'setTdlibParameters') {
-      query.database_directory = this.tdfs.dbFileSystem.root;
-      query.files_directory = this.tdfs.inboundFileSystem.root;
-
-      const useDb = this.useDatabase;
-      query.use_file_database = useDb;
-      query.use_chat_info_database = useDb;
-      query.use_message_database = useDb;
-      query.use_secret_chats = useDb;
-    }
-    if (query['@type'] === 'getLanguagePackString') {
-      query.language_pack_database_path =
-        this.tdfs.dbFileSystem.root + '/language';
-    }
-    return this.prepareQueryRecursive(query);
-  }
-
-  onStart() {
-    //nop
-    log.info('ignore on_start');
-  }
-
-  deleteIdbKey(query) {
-    try {
-    } catch (e) {
-      this.callback({
-        '@type': 'error',
-        '@extra': query['@extra'],
-        code: 400,
-        message: e
-      });
-      return;
-    }
-    this.callback({
-      '@type': 'ok',
-      '@extra': query['@extra']
-    });
-  }
-
-  readFilePart(query) {
-    let res;
-    try {
-      //const file_size = this.FS.stat(query.path).size;
-      const stream = this.FS.open(query.path, 'r');
-      const buf = new Uint8Array(query.count);
-      this.FS.read(stream, buf, 0, query.count, query.offset);
-      this.FS.close(stream);
-      res = buf;
-    } catch (e) {
-      this.callback({
-        '@type': 'error',
-        '@extra': query['@extra'],
-        code: 400,
-        message: e.toString()
-      });
-      return;
-    }
-    this.callback(
-      {
-        '@type': 'filePart',
-        '@extra': query['@extra'],
-        data: res
-      },
-      [res.buffer]
-    );
-  }
-
-  send(query) {
-    if (this.isClosing) {
-      return;
-    }
-    if (this.wasFatalError) {
-      if (query['@type'] === 'destroy') {
-        this.destroy({ '@type': 'ok', '@extra': query['@extra'] });
-      }
-      return;
-    }
-    if (query['@type'] === 'init') {
-      this.init(query.options);
-      return;
-    }
-    if (query['@type'] === 'start') {
-      log.info('on_start');
-      this.onStart();
-      return;
-    }
-    if (query['@type'] === 'setJsLogVerbosityLevel') {
-      log.setVerbosity(query.new_verbosity_level);
-      return;
-    }
-    if (this.isPending) {
-      this.pendingQueries.push(query);
-      return;
-    }
-    if (
-      query['@type'] === 'setLogVerbosityLevel' ||
-      query['@type'] === 'getLogVerbosityLevel' ||
-      query['@type'] === 'setLogTagVerbosityLevel' ||
-      query['@type'] === 'getLogTagVerbosityLevel' ||
-      query['@type'] === 'getLogTags'
-    ) {
-      this.execute(query);
-      return;
-    }
-    if (query['@type'] === 'readFilePart') {
-      this.readFilePart(query);
-      return;
-    }
-    if (query['@type'] === 'deleteIdbKey') {
-      this.deleteIdbKey(query);
-      return;
-    }
-    query = this.prepareQuery(query);
-    this.td_functions.td_send(this.client_id, JSON.stringify(query));
-    this.scheduleReceiveSoon();
-  }
-
-  execute(query) {
-    try {
-      const res = this.td_functions.td_execute(JSON.stringify(query));
-      const response = JSON.parse(res);
-      this.callback(response);
-    } catch (error) {
-      this.onFatalError(error);
-    }
-  }
-  receive() {
-    this.cancelReceive();
-    if (this.wasFatalError) {
-      return;
-    }
-    try {
-      while (true) {
-        const msg = this.td_functions.td_receive();
-        if (!msg) {
-          break;
-        }
-        const response = this.prepareResponse(JSON.parse(msg));
-        if (
-          response['@type'] === 'updateAuthorizationState' &&
-          response.authorization_state['@type'] === 'authorizationStateClosed'
-        ) {
-          this.close(response);
-          break;
-        }
-        this.callback(response);
-      }
-
-      this.scheduleReceive();
-    } catch (error) {
-      this.onFatalError(error);
-    }
-  }
-
-  cancelReceive() {
-    if (this.receiveTimeout) {
-      clearTimeout(this.receiveTimeout);
-      delete this.receiveTimeout;
-    }
-    delete this.receiveSoon;
-  }
-  scheduleReceiveSoon() {
-    if (this.receiveSoon) {
-      return;
-    }
-    this.cancelReceive();
-    this.receiveSoon = true;
-    this.scheduleReceiveIn(0.001);
-  }
-  scheduleReceive() {
-    if (this.receiveSoon) {
-      return;
-    }
-    this.cancelReceive();
-    const timeout = this.td_functions.td_get_timeout();
-    this.scheduleReceiveIn(timeout);
-  }
-  scheduleReceiveIn(timeout) {
-    //return;
-    log.debug('Scheduler receive in ' + timeout + 's');
-    this.receiveTimeout = setTimeout(() => this.receive(), timeout * 1000);
-  }
-
-  onFatalError(error) {
-    this.wasFatalError = true;
-    this.asyncOnFatalError(error);
-  }
-
-  async close(last_update) {
-    // close db and cancel all timers
-    this.isClosing = true;
-    if (this.isStarted) {
-      log.debug('close worker: start');
-      await this.tdfs.dbFileSystem.close();
-      this.cancelReceive();
-      log.debug('close worker: finish');
-    }
-    this.callback(last_update);
-  }
-
-  async destroy(result) {
-    try {
-      log.info('destroy tdfs ...');
-      await this.tdfs.destroy();
-      log.info('destroy tdfs ok');
-    } catch (e) {
-      log.error('Failed destroy', e);
-    }
-    this.callback(result);
-    this.callback({
-      '@type': 'updateAuthorizationState',
-      authorization_state: {
-        '@type': 'authorizationStateClosed'
-      }
-    });
-  }
-
-  async asyncOnFatalError(error) {
-    await this.tdfs.dbFileSystem.sync();
-    this.callback({ '@type': 'updateFatalError', error: error });
-  }
-
-  saveFile(pid, file) {
-    const isSaving = this.savingFiles.has(pid);
-    this.savingFiles.set(pid, file);
-    if (isSaving) {
-      return file;
-    }
-    try {
-      const arr = this.FS.readFile(file.local.path);
-      if (arr) {
-        file = Object.assign({}, file);
-        file.arr = arr;
-        this.doSaveFile(pid, file, arr);
-      }
-    } catch (e) {
-      log.error('Failed to readFile: ', e);
-    }
-    return file;
-  }
-
-  async doSaveFile(pid, file, arr) {
-    await this.tdfs.inboundFileSystem.persist(pid, file.local.path, arr);
-    file = this.savingFiles.get(pid);
-    file.idb_key = pid;
-    this.callback({ '@type': 'updateFile', file: file });
-
-    this.savingFiles.delete(pid);
-  }
-
-  prepareFile(file) {
-    const pid = file.remote.unique_id ? file.remote.unique_id : file.remote.id;
-    if (!pid) {
-      return file;
-    }
-
-    if (file.local.is_downloading_active) {
-      this.tdfs.inboundFileSystem.forget(pid);
-    } else if (this.tdfs.inboundFileSystem.has(pid)) {
-      file.idb_key = pid;
-      return file;
-    }
-
-    if (file.local.is_downloading_completed) {
-      file = this.saveFile(pid, file);
-    }
-    return file;
-  }
-
-  prepareResponse(response) {
-    if (response['@type'] === 'file') {
-      return this.prepareFile(response);
-    }
-    for (const key in response) {
-      const field = response[key];
-      if (field && typeof field === 'object') {
-        response[key] = this.prepareResponse(field);
-      }
-    }
-    return response;
-  }
-
-  flushPendingQueries() {
-    this.isPending = false;
-    for (const query of this.pendingQueries) {
-      this.send(query);
-    }
-  }
-}
-
-const client = new TdClient((e, t = []) => postMessage(e, t));
-
-onmessage = function(e) {
-  try {
-    client.send(e.data);
-  } catch (error) {
-    client.onFatalError(error);
-  }
-};
diff --git a/third-party/td/td/example/web/tdweb/webpack.config.js b/third-party/td/td/example/web/tdweb/webpack.config.js
deleted file mode 100644
index 8f1aed146c..0000000000
--- a/third-party/td/td/example/web/tdweb/webpack.config.js
+++ /dev/null
@@ -1,85 +0,0 @@
-const path = require('path');
-const CleanWebpackPlugin = require('clean-webpack-plugin');
-
-module.exports = {
-  entry: ['./src/index.js'],
-  output: {
-    filename: 'tdweb.js',
-    path: path.resolve(__dirname, 'dist'),
-    library: 'tdweb',
-    libraryTarget: 'umd',
-    umdNamedDefine: true,
-    globalObject: 'this'
-  },
-  devServer: {
-    contentBase: './dist'
-  },
-  plugins: [
-    // new HtmlWebpackPlugin(),
-    new CleanWebpackPlugin({})
-    //, new UglifyJSPlugin()
-  ],
-  optimization:{
-    minimize: false, // <---- disables uglify.
-  },
-  module: {
-    rules: [
-      {
-        test: /\.(js|jsx)$/,
-        exclude: /prebuilt/,
-        enforce: 'pre',
-        include: [path.resolve(__dirname, 'src')],
-        use: [
-          {
-            loader: require.resolve('eslint-loader')
-          }
-        ]
-      },
-      {
-        test: /worker\.(js|jsx)$/,
-        include: [path.resolve(__dirname, 'src')],
-        use: [
-          {
-            loader: require.resolve('worker-loader')
-          }
-        ]
-      },
-      {
-        test: /\.(js|jsx)$/,
-        exclude: /prebuilt/,
-        include: [path.resolve(__dirname, 'src')],
-        use: [
-          {
-            loader: require.resolve('babel-loader')
-          }
-        ]
-      },
-      {
-        test: /\.(wasm|mem)$/,
-        include: [path.resolve(__dirname, 'src')],
-        type: "javascript/auto",
-        use: [
-          {
-            loader: require.resolve('file-loader')
-          }
-        ]
-      }
-    ]
-  },
-  node: {
-    dgram: 'empty',
-    fs: 'empty',
-    net: 'empty',
-    tls: 'empty',
-    crypto: 'empty',
-    child_process: 'empty'
-  },
-  performance: {
-    maxAssetSize: 30000000
-  },
-  resolve: {
-    alias: {
-      ws$: 'fs'
-    }
-  }
-};
diff --git a/third-party/td/td/format.ps1 b/third-party/td/td/format.ps1
deleted file mode 100644
index ef4f53155f..0000000000
--- a/third-party/td/td/format.ps1
+++ /dev/null
@@ -1,3 +0,0 @@
-./src.ps1 | Select-String -NotMatch "CxCli.h" | Select-String -CaseSensitive -NotMatch "DotNet" | Select-String -NotMatch "tl/tl_dotnet_object.h" | Select-String -NotMatch "/tl-parser/" | ForEach-Object {
-  clang-format -verbose -style=file -i $_
-}
diff --git a/third-party/td/td/format.sh b/third-party/td/td/format.sh
deleted file mode 100755
index 47d21ee527..0000000000
--- a/third-party/td/td/format.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh
-cd $(dirname $0)
-./src.sh | grep -v CxCli.h | grep -v DotNet | grep -v tl/tl_dotnet_object.h | grep -v /tl-parser/ | xargs -n 1 clang-format -verbose -style=file -i
diff --git a/third-party/td/td/memprof/memprof.cpp b/third-party/td/td/memprof/memprof.cpp
deleted file mode 100644
index 713ff08689..0000000000
--- a/third-party/td/td/memprof/memprof.cpp
+++ /dev/null
@@ -1,331 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "memprof/memprof.h"
-
-#include "td/utils/port/platform.h"
-
-#if (TD_DARWIN || TD_LINUX) && defined(USE_MEMPROF)
-#include <algorithm>
-#include <atomic>
-#include <cstddef>
-#include <cstdint>
-#include <cstdlib>
-#include <cstring>
-#include <functional>
-#include <new>
-#include <utility>
-#include <vector>
-
-#include <dlfcn.h>
-#include <execinfo.h>
-
-bool is_memprof_on() {
-  return true;
-}
-
-#define my_assert(f) \
-  if (!(f)) {        \
-    std::abort();    \
-  }
-
-#if USE_MEMPROF_SAFE
-double get_fast_backtrace_success_rate() {
-  return 0;
-}
-#else
-
-#if TD_LINUX
-extern void *__libc_stack_end;
-#endif
-
-static void *get_bp() {
-  void *bp;
-#if defined(__i386__)
-  __asm__ volatile("movl %%ebp, %[r]" : [r] "=r"(bp));
-#elif defined(__x86_64__)
-  __asm__ volatile("movq %%rbp, %[r]" : [r] "=r"(bp));
-#endif
-  return bp;
-}
-
-static int fast_backtrace(void **buffer, int size) {
-  struct stack_frame {
-    stack_frame *bp;
-    void *ip;
-  };
-
-  auto *bp = reinterpret_cast<stack_frame *>(get_bp());
-  int i = 0;
-  while (i < size &&
-#if TD_LINUX
-         static_cast<void *>(bp) <= __libc_stack_end &&
-#endif
-         !(reinterpret_cast<std::uintptr_t>(static_cast<void *>(bp)) & (sizeof(void *) - 1))) {
-    void *ip = bp->ip;
-    buffer[i++] = ip;
-    stack_frame *p = bp->bp;
-    if (p <= bp) {
-      break;
-    }
-    bp = p;
-  }
-  return i;
-}
-
-static std::atomic<std::size_t> fast_backtrace_failed_cnt;
-static std::atomic<std::size_t> backtrace_total_cnt;
-double get_fast_backtrace_success_rate() {
-  return 1 - static_cast<double>(fast_backtrace_failed_cnt.load(std::memory_order_relaxed)) /
-                 static_cast<double>(std::max(std::size_t(1), backtrace_total_cnt.load(std::memory_order_relaxed)));
-}
-
-#endif
-
-static Backtrace get_backtrace() {
-  static __thread bool in_backtrace;  // static zero-initialized
-  Backtrace res{{nullptr}};
-  if (in_backtrace) {
-    return res;
-  }
-  in_backtrace = true;
-  std::array<void *, res.size() + BACKTRACE_SHIFT + 10> tmp{{nullptr}};
-  std::size_t n;
-#if USE_MEMPROF_SAFE
-  n = backtrace(tmp.data(), static_cast<int>(tmp.size()));
-#else
-  n = fast_backtrace(tmp.data(), static_cast<int>(tmp.size()));
-  auto from_shared = [](void *ptr) {
-    return reinterpret_cast<std::uintptr_t>(ptr) > static_cast<std::uintptr_t>(0x700000000000ull);
-  };
-
-#if !USE_MEMPROF_FAST
-  auto end = tmp.begin() + std::min(res.size() + BACKTRACE_SHIFT, n);
-  if (std::find_if(tmp.begin(), end, from_shared) != end) {
-    fast_backtrace_failed_cnt.fetch_add(1, std::memory_order_relaxed);
-    n = backtrace(tmp.data(), static_cast<int>(tmp.size()));
-  }
-  backtrace_total_cnt.fetch_add(1, std::memory_order_relaxed);
-#endif
-  n = std::remove_if(tmp.begin(), tmp.begin() + n, from_shared) - tmp.begin();
-#endif
-  n = std::min(res.size() + BACKTRACE_SHIFT, n);
-
-  for (std::size_t i = BACKTRACE_SHIFT; i < n; i++) {
-    res[i - BACKTRACE_SHIFT] = tmp[i];
-  }
-  in_backtrace = false;
-  return res;
-}
-
-static constexpr std::size_t RESERVED_SIZE = 16;
-static constexpr std::int32_t MALLOC_INFO_MAGIC = 0x27138373;
-struct malloc_info {
-  std::int32_t magic;
-  std::int32_t size;
-  std::int32_t ht_pos;
-};
-
-static std::uint64_t get_hash(const Backtrace &bt) {
-  std::uint64_t h = 7;
-  for (std::size_t i = 0; i < bt.size() && i < BACKTRACE_HASHED_LENGTH; i++) {
-    h = h * 0x4372897893428797lu + reinterpret_cast<std::uintptr_t>(bt[i]);
-  }
-  return h;
-}
-
-struct HashtableNode {
-  std::atomic<std::uint64_t> hash;
-  Backtrace backtrace;
-  std::atomic<std::size_t> size;
-};
-
-static constexpr std::size_t HT_MAX_SIZE = 10000000;
-static std::atomic<std::size_t> ht_size{0};
-static std::array<HashtableNode, HT_MAX_SIZE> ht;
-
-std::size_t get_ht_size() {
-  return ht_size.load();
-}
-
-std::int32_t get_ht_pos(const Backtrace &bt, bool force = false) {
-  auto hash = get_hash(bt);
-  auto pos = static_cast<std::int32_t>(hash % ht.size());
-  bool was_overflow = false;
-  while (true) {
-    auto pos_hash = ht[pos].hash.load();
-    if (pos_hash == 0) {
-      if (ht_size > HT_MAX_SIZE / 2) {
-        if (force) {
-          my_assert(ht_size * 10 < HT_MAX_SIZE * 7);
-        } else {
-          Backtrace unknown_bt{{nullptr}};
-          unknown_bt[0] = reinterpret_cast<void *>(1);
-          return get_ht_pos(unknown_bt, true);
-        }
-      }
-
-      std::uint64_t expected = 0;
-      if (ht[pos].hash.compare_exchange_strong(expected, hash)) {
-        ht[pos].backtrace = bt;
-        ++ht_size;
-        return pos;
-      }
-    } else if (pos_hash == hash) {
-      return pos;
-    } else {
-      pos++;
-      if (pos == static_cast<std::int32_t>(ht.size())) {
-        pos = 0;
-        if (was_overflow) {
-          // unreachable
-          std::abort();
-        }
-        was_overflow = true;
-      }
-    }
-  }
-}
-
-void dump_alloc(const std::function<void(const AllocInfo &)> &func) {
-  for (auto &node : ht) {
-    auto size = node.size.load(std::memory_order_relaxed);
-    if (size == 0) {
-      continue;
-    }
-    func(AllocInfo{node.backtrace, size});
-  }
-}
-
-void register_xalloc(malloc_info *info, std::int32_t diff) {
-  my_assert(info->size >= 0);
-  if (diff > 0) {
-    ht[info->ht_pos].size.fetch_add(info->size, std::memory_order_relaxed);
-  } else {
-    auto old_value = ht[info->ht_pos].size.fetch_sub(info->size, std::memory_order_relaxed);
-    my_assert(old_value >= static_cast<std::size_t>(info->size));
-  }
-}
-
-extern "C" {
-
-static void *malloc_with_frame(std::size_t size, const Backtrace &frame) {
-  static_assert(RESERVED_SIZE % alignof(std::max_align_t) == 0, "fail");
-  static_assert(RESERVED_SIZE >= sizeof(malloc_info), "fail");
-#if TD_DARWIN
-  static void *malloc_void = dlsym(RTLD_NEXT, "malloc");
-  static auto malloc_old = *reinterpret_cast<decltype(malloc) **>(&malloc_void);
-#else
-  extern decltype(malloc) __libc_malloc;
-  static auto malloc_old = __libc_malloc;
-#endif
-  auto *info = static_cast<malloc_info *>(malloc_old(size + RESERVED_SIZE));
-  auto *buf = reinterpret_cast<char *>(info);
-
-  info->magic = MALLOC_INFO_MAGIC;
-  info->size = static_cast<std::int32_t>(size);
-  info->ht_pos = get_ht_pos(frame);
-
-  register_xalloc(info, +1);
-
-  void *data = buf + RESERVED_SIZE;
-
-  return data;
-}
-
-static malloc_info *get_info(void *data_void) {
-  auto *data = static_cast<char *>(data_void);
-  auto *buf = data - RESERVED_SIZE;
-
-  auto *info = reinterpret_cast<malloc_info *>(buf);
-  my_assert(info->magic == MALLOC_INFO_MAGIC);
-  return info;
-}
-
-void *malloc(std::size_t size) {
-  return malloc_with_frame(size, get_backtrace());
-}
-
-void free(void *data_void) {
-  if (data_void == nullptr) {
-    return;
-  }
-  auto *info = get_info(data_void);
-  register_xalloc(info, -1);
-
-#if TD_DARWIN
-  static void *free_void = dlsym(RTLD_NEXT, "free");
-  static auto free_old = *reinterpret_cast<decltype(free) **>(&free_void);
-#else
-  extern decltype(free) __libc_free;
-  static auto free_old = __libc_free;
-#endif
-  return free_old(info);
-}
-
-void *calloc(std::size_t size_a, std::size_t size_b) {
-  auto size = size_a * size_b;
-  void *res = malloc_with_frame(size, get_backtrace());
-  std::memset(res, 0, size);
-  return res;
-}
-
-void *realloc(void *ptr, std::size_t size) {
-  if (ptr == nullptr) {
-    return malloc_with_frame(size, get_backtrace());
-  }
-  auto *info = get_info(ptr);
-  auto *new_ptr = malloc_with_frame(size, get_backtrace());
-  auto to_copy = std::min(static_cast<std::int32_t>(size), info->size);
-  std::memcpy(new_ptr, ptr, to_copy);
-  free(ptr);
-  return new_ptr;
-}
-
-void *memalign(std::size_t alignment, std::size_t size) {
-  my_assert(false && "Memalign is unsupported");
-  return nullptr;
-}
-}
-
-// C++17 guarantees that it is enough to override these 4 operators
-void *operator new(std::size_t count) {
-  return malloc_with_frame(count, get_backtrace());
-}
-void operator delete(void *ptr) noexcept(true) {
-  free(ptr);
-}
-void *operator new(std::size_t count, std::align_val_t al) {
-  return memalign(static_cast<std::size_t>(al), count);
-}
-void operator delete(void *ptr, std::align_val_t al) noexcept {
-  free(ptr);
-}
-
-// because of GCC warning: the program should also define 'void operator delete(void*, std::size_t)'
-void operator delete(void *ptr, std::size_t) noexcept(true) {
-  free(ptr);
-}
-
-#else
-bool is_memprof_on() {
-  return false;
-}
-void dump_alloc(const std::function<void(const AllocInfo &)> &func) {
-}
-double get_fast_backtrace_success_rate() {
-  return 0;
-}
-std::size_t get_ht_size() {
-  return 0;
-}
-#endif
-
-std::size_t get_used_memory_size() {
-  std::size_t res = 0;
-  dump_alloc([&](const auto info) { res += info.size; });
-  return res;
-}
diff --git a/third-party/td/td/memprof/memprof.h b/third-party/td/td/memprof/memprof.h
deleted file mode 100644
index 40d5512847..0000000000
--- a/third-party/td/td/memprof/memprof.h
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <array>
-#include <cstddef>
-#include <functional>
-
-constexpr std::size_t BACKTRACE_SHIFT = 1;
-constexpr std::size_t BACKTRACE_HASHED_LENGTH = 6;
-constexpr std::size_t BACKTRACE_LENGTH = 10;
-
-using Backtrace = std::array<void *, BACKTRACE_LENGTH>;
-struct AllocInfo {
-  Backtrace backtrace;
-  std::size_t size;
-};
-
-bool is_memprof_on();
-std::size_t get_ht_size();
-double get_fast_backtrace_success_rate();
-void dump_alloc(const std::function<void(const AllocInfo &)> &func);
-std::size_t get_used_memory_size();
diff --git a/third-party/td/td/memprof/memprof_stat.cpp b/third-party/td/td/memprof/memprof_stat.cpp
deleted file mode 100644
index 8bf8f88d7c..0000000000
--- a/third-party/td/td/memprof/memprof_stat.cpp
+++ /dev/null
@@ -1,169 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "memprof/memprof_stat.h"
-
-#include "td/utils/port/platform.h"
-
-#if (TD_DARWIN || TD_LINUX)
-#include <algorithm>
-#include <atomic>
-#include <cstddef>
-#include <cstdint>
-#include <cstdlib>
-#include <cstring>
-#include <new>
-#include <utility>
-#include <vector>
-
-#include <dlfcn.h>
-#include <execinfo.h>
-
-bool is_memprof_on() {
-  return true;
-}
-
-#define my_assert(f) \
-  if (!(f)) {        \
-    std::abort();    \
-  }
-
-struct malloc_info {
-  std::int32_t magic;
-  std::int32_t size;
-};
-
-static std::atomic<std::size_t> total_memory_used;
-
-void register_xalloc(malloc_info *info, std::int32_t diff) {
-  my_assert(info->size >= 0);
-  // TODO: this is very slow in case of several threads.
-  // Currently, the statistics are intended only for memory benchmarks.
-  total_memory_used.fetch_add(diff * info->size, std::memory_order_relaxed);
-}
-
-std::size_t get_used_memory_size() {
-  return total_memory_used.load();
-}
-
-extern "C" {
-
-static constexpr std::size_t RESERVED_SIZE = 16;
-static constexpr std::int32_t MALLOC_INFO_MAGIC = 0x27138373;
-
-static void *do_malloc(std::size_t size) {
-  static_assert(RESERVED_SIZE % alignof(std::max_align_t) == 0, "fail");
-  static_assert(RESERVED_SIZE >= sizeof(malloc_info), "fail");
-#if TD_DARWIN
-  static void *malloc_void = dlsym(RTLD_NEXT, "malloc");
-  static auto malloc_old = *reinterpret_cast<decltype(malloc) **>(&malloc_void);
-#else
-  extern decltype(malloc) __libc_malloc;
-  static auto malloc_old = __libc_malloc;
-#endif
-  auto *info = static_cast<malloc_info *>(malloc_old(size + RESERVED_SIZE));
-  auto *buf = reinterpret_cast<char *>(info);
-
-  info->magic = MALLOC_INFO_MAGIC;
-  info->size = static_cast<std::int32_t>(size);
-
-  register_xalloc(info, +1);
-
-  void *data = buf + RESERVED_SIZE;
-
-  return data;
-}
-
-static malloc_info *get_info(void *data_void) {
-  auto *data = static_cast<char *>(data_void);
-  auto *buf = data - RESERVED_SIZE;
-
-  auto *info = reinterpret_cast<malloc_info *>(buf);
-  my_assert(info->magic == MALLOC_INFO_MAGIC);
-  return info;
-}
-
-void *malloc(std::size_t size) {
-  return do_malloc(size);
-}
-
-void free(void *data_void) {
-  if (data_void == nullptr) {
-    return;
-  }
-  auto *info = get_info(data_void);
-  register_xalloc(info, -1);
-
-#if TD_DARWIN
-  static void *free_void = dlsym(RTLD_NEXT, "free");
-  static auto free_old = *reinterpret_cast<decltype(free) **>(&free_void);
-#else
-  extern decltype(free) __libc_free;
-  static auto free_old = __libc_free;
-#endif
-  return free_old(info);
-}
-
-void *calloc(std::size_t size_a, std::size_t size_b) {
-  auto size = size_a * size_b;
-  void *res = do_malloc(size);
-  std::memset(res, 0, size);
-  return res;
-}
-
-void *realloc(void *ptr, std::size_t size) {
-  if (ptr == nullptr) {
-    return do_malloc(size);
-  }
-  auto *info = get_info(ptr);
-  auto *new_ptr = do_malloc(size);
-  auto to_copy = std::min(static_cast<std::int32_t>(size), info->size);
-  std::memcpy(new_ptr, ptr, to_copy);
-  free(ptr);
-  return new_ptr;
-}
-
-void *memalign(std::size_t alignment, std::size_t size) {
-  auto res = malloc(size);
-  my_assert(reinterpret_cast<std::uintptr_t>(res) % alignment == 0);
-  return res;
-}
-
-int posix_memalign(void **memptr, size_t alignment, size_t size) {
-  auto res = malloc(size);
-  my_assert(reinterpret_cast<std::uintptr_t>(res) % alignment == 0);
-  *memptr = res;
-  return 0;
-}
-}
-
-// C++17 guarantees that it is enough to override these 4 operators
-void *operator new(std::size_t count) {
-  return malloc_with_frame(count, get_backtrace());
-}
-void operator delete(void *ptr) noexcept(true) {
-  free(ptr);
-}
-void *operator new(std::size_t count, std::align_val_t al) {
-  return memalign(static_cast<std::size_t>(al), count);
-}
-void operator delete(void *ptr, std::align_val_t al) noexcept {
-  free(ptr);
-}
-
-// because of GCC warning: the program should also define 'void operator delete(void*, std::size_t)'
-void operator delete(void *ptr, std::size_t) noexcept(true) {
-  free(ptr);
-}
-
-#else
-bool is_memprof_on() {
-  return false;
-}
-std::size_t get_used_memory_size() {
-  return 0;
-}
-#endif
diff --git a/third-party/td/td/memprof/memprof_stat.h b/third-party/td/td/memprof/memprof_stat.h
deleted file mode 100644
index 7328fa7459..0000000000
--- a/third-party/td/td/memprof/memprof_stat.h
+++ /dev/null
@@ -1,13 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <cstddef>
-
-bool is_memprof_on();
-
-std::size_t get_used_memory_size();
diff --git a/third-party/td/td/post.js b/third-party/td/td/post.js
deleted file mode 100644
index 531af4df13..0000000000
--- a/third-party/td/td/post.js
+++ /dev/null
@@ -1 +0,0 @@
-createTdwebModule.ready.FS = Module.FS;
diff --git a/third-party/td/td/sqlite/CMakeLists.txt b/third-party/td/td/sqlite/CMakeLists.txt
deleted file mode 100644
index 62d60728f7..0000000000
--- a/third-party/td/td/sqlite/CMakeLists.txt
+++ /dev/null
@@ -1,80 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-option(TDSQLITE_ENABLE_INSTALL "Enable installation of the library." ON)
-
-if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
-  set(CMAKE_INSTALL_LIBDIR "lib")
-endif()
-
-if (NOT OPENSSL_FOUND)
-  find_package(OpenSSL REQUIRED)
-  find_package(ZLIB REQUIRED)
-endif()
-
-set(SQLITE_SOURCE
-  sqlite/sqlite3.c
-
-  sqlite/sqlite3.h
-  sqlite/sqlite3ext.h
-  sqlite/sqlite3session.h
-)
-
-# all SQLite functions are moved to namespace tdsqlite3 by `sed -Ebi 's/sqlite3([^.]|$)/td&/g' *`
-
-add_library(tdsqlite STATIC ${SQLITE_SOURCE})
-target_include_directories(tdsqlite PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-target_include_directories(tdsqlite SYSTEM PRIVATE ${OPENSSL_INCLUDE_DIR})
-target_link_libraries(tdsqlite PRIVATE ${OPENSSL_CRYPTO_LIBRARY} ${CMAKE_DL_LIBS} ${ZLIB_LIBRARIES})
-if (WIN32)
-  if (MINGW)
-    target_link_libraries(tdsqlite PRIVATE ws2_32 mswsock crypt32)
-  else()
-    target_link_libraries(tdsqlite PRIVATE ws2_32 Mswsock Crypt32)
-  endif()
-endif()
-
-target_compile_definitions(tdsqlite PRIVATE
-  -DOMIT_MEMLOCK
-  -DSQLITE_DEFAULT_MEMSTATUS=0
-  -DSQLITE_DEFAULT_RECURSIVE_TRIGGERS=1
-  -DSQLITE_DEFAULT_SYNCHRONOUS=1
-  -DSQLITE_DISABLE_LFS
-  -DSQLITE_ENABLE_FTS5
-  -DSQLITE_HAS_CODEC
-  -DSQLITE_OMIT_DECLTYPE
-  -DSQLITE_OMIT_DEPRECATED
-  -DSQLITE_OMIT_DESERIALIZE
-  -DSQLITE_OMIT_LOAD_EXTENSION
-  -DSQLITE_OMIT_PROGRESS_CALLBACK
-  #-DSQLITE_OMIT_SHARED_CACHE
-  -DSQLITE_TEMP_STORE=2
-)
-
-if (NOT WIN32)
-  target_compile_definitions(tdsqlite PRIVATE -DHAVE_USLEEP -DNDEBUG=1)
-endif()
-
-if (CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
-  target_compile_definitions(tdsqlite PRIVATE -DSQLITE_OS_WINRT=1)
-endif()
-
-if (GCC OR CLANG)
-  target_compile_options(tdsqlite PRIVATE -Wno-deprecated-declarations -Wno-unused-variable -Wno-unused-const-variable -Wno-unused-function -Wno-maybe-uninitialized -Wno-return-local-addr)
-  if (CLANG)
-    target_compile_options(tdsqlite PRIVATE -Wno-parentheses-equality -Wno-unused-value -Wno-unknown-warning-option -Wno-unused-command-line-argument -Qunused-arguments)
-  endif()
-  if (GCC AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 10.0))
-    target_compile_options(tdsqlite PRIVATE -Wno-return-local-addr -Wno-stringop-overflow)
-  endif()
-elseif (MSVC)
-  target_compile_options(tdsqlite PRIVATE /wd4996)
-endif()
-
-if (TDSQLITE_ENABLE_INSTALL)
-  install(TARGETS tdsqlite EXPORT TdStaticTargets
-    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  )
-endif()
diff --git a/third-party/td/td/sqlite/sqlite/LICENSE b/third-party/td/td/sqlite/sqlite/LICENSE
deleted file mode 100644
index 4fdcf4ed4c..0000000000
--- a/third-party/td/td/sqlite/sqlite/LICENSE
+++ /dev/null
@@ -1,24 +0,0 @@
-Copyright (c) 2008, ZETETIC LLC
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-    * Neither the name of the ZETETIC LLC nor the
-      names of its contributors may be used to endorse or promote products
-      derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
-EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/third-party/td/td/sqlite/sqlite/sqlite3.c b/third-party/td/td/sqlite/sqlite/sqlite3.c
deleted file mode 100644
index 4fb5bc5e5d..0000000000
--- a/third-party/td/td/sqlite/sqlite/sqlite3.c
+++ /dev/null
@@ -1,232086 +0,0 @@
-/******************************************************************************
-** This file is an amalgamation of many separate C source files from SQLite
-** version 3.31.0.  By combining all the individual C code files into this
-** single large file, the entire code can be compiled as a single translation
-** unit.  This allows many compilers to do optimizations that would not be
-** possible if the files were compiled separately.  Performance improvements
-** of 5% or more are commonly seen when SQLite is compiled as a single
-** translation unit.
-**
-** This file is all you need to compile SQLite.  To use SQLite in other
-** programs, you need this file and the "sqlite3.h" header file that defines
-** the programming interface to the SQLite library.  (If you do not have
-** the "sqlite3.h" header file at hand, you will find a copy embedded within
-** the text of this file.  Search for "Begin file sqlite3.h" to find the start
-** of the embedded sqlite3.h header file.) Additional code files may be needed
-** if you want a wrapper to interface SQLite with your choice of programming
-** language. The code for the "tdsqlite3" command-line shell is also in a
-** separate file. This file contains only code for the core SQLite library.
-*/
-#define SQLITE_CORE 1
-#define SQLITE_AMALGAMATION 1
-#ifndef SQLITE_PRIVATE
-# define SQLITE_PRIVATE static
-#endif
-/************** Begin file ctime.c *******************************************/
-/*
-** 2010 February 23
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file implements routines used to report what compile-time options
-** SQLite was built with.
-*/
-
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS /* IMP: R-16824-07538 */
-
-/*
-** Include the configuration header output by 'configure' if we're using the
-** autoconf-based build
-*/
-#if defined(_HAVE_SQLITE_CONFIG_H) && !defined(SQLITECONFIG_H)
-#include "config.h"
-#define SQLITECONFIG_H 1
-#endif
-
-/* These macros are provided to "stringify" the value of the define
-** for those options in which the value is meaningful. */
-#define CTIMEOPT_VAL_(opt) #opt
-#define CTIMEOPT_VAL(opt) CTIMEOPT_VAL_(opt)
-
-/* Like CTIMEOPT_VAL, but especially for SQLITE_DEFAULT_LOOKASIDE. This
-** option requires a separate macro because legal values contain a single
-** comma. e.g. (-DSQLITE_DEFAULT_LOOKASIDE="100,100") */
-#define CTIMEOPT_VAL2_(opt1,opt2) #opt1 "," #opt2
-#define CTIMEOPT_VAL2(opt) CTIMEOPT_VAL2_(opt)
-
-/*
-** An array of names of all compile-time options.  This array should 
-** be sorted A-Z.
-**
-** This array looks large, but in a typical installation actually uses
-** only a handful of compile-time options, so most times this array is usually
-** rather short and uses little memory space.
-*/
-static const char * const tdsqlite3azCompileOpt[] = {
-
-/* 
-** BEGIN CODE GENERATED BY tool/mkctime.tcl 
-*/
-#if SQLITE_32BIT_ROWID
-  "32BIT_ROWID",
-#endif
-#if SQLITE_4_BYTE_ALIGNED_MALLOC
-  "4_BYTE_ALIGNED_MALLOC",
-#endif
-#if SQLITE_64BIT_STATS
-  "64BIT_STATS",
-#endif
-#if SQLITE_ALLOW_COVERING_INDEX_SCAN
-  "ALLOW_COVERING_INDEX_SCAN",
-#endif
-#if SQLITE_ALLOW_URI_AUTHORITY
-  "ALLOW_URI_AUTHORITY",
-#endif
-#ifdef SQLITE_BITMASK_TYPE
-  "BITMASK_TYPE=" CTIMEOPT_VAL(SQLITE_BITMASK_TYPE),
-#endif
-#if SQLITE_BUG_COMPATIBLE_20160819
-  "BUG_COMPATIBLE_20160819",
-#endif
-#if SQLITE_CASE_SENSITIVE_LIKE
-  "CASE_SENSITIVE_LIKE",
-#endif
-#if SQLITE_CHECK_PAGES
-  "CHECK_PAGES",
-#endif
-#if defined(__clang__) && defined(__clang_major__)
-  "COMPILER=clang-" CTIMEOPT_VAL(__clang_major__) "."
-                    CTIMEOPT_VAL(__clang_minor__) "."
-                    CTIMEOPT_VAL(__clang_patchlevel__),
-#elif defined(_MSC_VER)
-  "COMPILER=msvc-" CTIMEOPT_VAL(_MSC_VER),
-#elif defined(__GNUC__) && defined(__VERSION__)
-  "COMPILER=gcc-" __VERSION__,
-#endif
-#if SQLITE_COVERAGE_TEST
-  "COVERAGE_TEST",
-#endif
-#if SQLITE_DEBUG
-  "DEBUG",
-#endif
-#if SQLITE_DEFAULT_AUTOMATIC_INDEX
-  "DEFAULT_AUTOMATIC_INDEX",
-#endif
-#if SQLITE_DEFAULT_AUTOVACUUM
-  "DEFAULT_AUTOVACUUM",
-#endif
-#ifdef SQLITE_DEFAULT_CACHE_SIZE
-  "DEFAULT_CACHE_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_CACHE_SIZE),
-#endif
-#if SQLITE_DEFAULT_CKPTFULLFSYNC
-  "DEFAULT_CKPTFULLFSYNC",
-#endif
-#ifdef SQLITE_DEFAULT_FILE_FORMAT
-  "DEFAULT_FILE_FORMAT=" CTIMEOPT_VAL(SQLITE_DEFAULT_FILE_FORMAT),
-#endif
-#ifdef SQLITE_DEFAULT_FILE_PERMISSIONS
-  "DEFAULT_FILE_PERMISSIONS=" CTIMEOPT_VAL(SQLITE_DEFAULT_FILE_PERMISSIONS),
-#endif
-#if SQLITE_DEFAULT_FOREIGN_KEYS
-  "DEFAULT_FOREIGN_KEYS",
-#endif
-#ifdef SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT
-  "DEFAULT_JOURNAL_SIZE_LIMIT=" CTIMEOPT_VAL(SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT),
-#endif
-#ifdef SQLITE_DEFAULT_LOCKING_MODE
-  "DEFAULT_LOCKING_MODE=" CTIMEOPT_VAL(SQLITE_DEFAULT_LOCKING_MODE),
-#endif
-#ifdef SQLITE_DEFAULT_LOOKASIDE
-  "DEFAULT_LOOKASIDE=" CTIMEOPT_VAL2(SQLITE_DEFAULT_LOOKASIDE),
-#endif
-#if SQLITE_DEFAULT_MEMSTATUS
-  "DEFAULT_MEMSTATUS",
-#endif
-#ifdef SQLITE_DEFAULT_MMAP_SIZE
-  "DEFAULT_MMAP_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_MMAP_SIZE),
-#endif
-#ifdef SQLITE_DEFAULT_PAGE_SIZE
-  "DEFAULT_PAGE_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_PAGE_SIZE),
-#endif
-#ifdef SQLITE_DEFAULT_PCACHE_INITSZ
-  "DEFAULT_PCACHE_INITSZ=" CTIMEOPT_VAL(SQLITE_DEFAULT_PCACHE_INITSZ),
-#endif
-#ifdef SQLITE_DEFAULT_PROXYDIR_PERMISSIONS
-  "DEFAULT_PROXYDIR_PERMISSIONS=" CTIMEOPT_VAL(SQLITE_DEFAULT_PROXYDIR_PERMISSIONS),
-#endif
-#if SQLITE_DEFAULT_RECURSIVE_TRIGGERS
-  "DEFAULT_RECURSIVE_TRIGGERS",
-#endif
-#ifdef SQLITE_DEFAULT_ROWEST
-  "DEFAULT_ROWEST=" CTIMEOPT_VAL(SQLITE_DEFAULT_ROWEST),
-#endif
-#ifdef SQLITE_DEFAULT_SECTOR_SIZE
-  "DEFAULT_SECTOR_SIZE=" CTIMEOPT_VAL(SQLITE_DEFAULT_SECTOR_SIZE),
-#endif
-#ifdef SQLITE_DEFAULT_SYNCHRONOUS
-  "DEFAULT_SYNCHRONOUS=" CTIMEOPT_VAL(SQLITE_DEFAULT_SYNCHRONOUS),
-#endif
-#ifdef SQLITE_DEFAULT_WAL_AUTOCHECKPOINT
-  "DEFAULT_WAL_AUTOCHECKPOINT=" CTIMEOPT_VAL(SQLITE_DEFAULT_WAL_AUTOCHECKPOINT),
-#endif
-#ifdef SQLITE_DEFAULT_WAL_SYNCHRONOUS
-  "DEFAULT_WAL_SYNCHRONOUS=" CTIMEOPT_VAL(SQLITE_DEFAULT_WAL_SYNCHRONOUS),
-#endif
-#ifdef SQLITE_DEFAULT_WORKER_THREADS
-  "DEFAULT_WORKER_THREADS=" CTIMEOPT_VAL(SQLITE_DEFAULT_WORKER_THREADS),
-#endif
-#if SQLITE_DIRECT_OVERFLOW_READ
-  "DIRECT_OVERFLOW_READ",
-#endif
-#if SQLITE_DISABLE_DIRSYNC
-  "DISABLE_DIRSYNC",
-#endif
-#if SQLITE_DISABLE_FTS3_UNICODE
-  "DISABLE_FTS3_UNICODE",
-#endif
-#if SQLITE_DISABLE_FTS4_DEFERRED
-  "DISABLE_FTS4_DEFERRED",
-#endif
-#if SQLITE_DISABLE_INTRINSIC
-  "DISABLE_INTRINSIC",
-#endif
-#if SQLITE_DISABLE_LFS
-  "DISABLE_LFS",
-#endif
-#if SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS
-  "DISABLE_PAGECACHE_OVERFLOW_STATS",
-#endif
-#if SQLITE_DISABLE_SKIPAHEAD_DISTINCT
-  "DISABLE_SKIPAHEAD_DISTINCT",
-#endif
-#ifdef SQLITE_ENABLE_8_3_NAMES
-  "ENABLE_8_3_NAMES=" CTIMEOPT_VAL(SQLITE_ENABLE_8_3_NAMES),
-#endif
-#if SQLITE_ENABLE_API_ARMOR
-  "ENABLE_API_ARMOR",
-#endif
-#if SQLITE_ENABLE_ATOMIC_WRITE
-  "ENABLE_ATOMIC_WRITE",
-#endif
-#if SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-  "ENABLE_BATCH_ATOMIC_WRITE",
-#endif
-#if SQLITE_ENABLE_CEROD
-  "ENABLE_CEROD=" CTIMEOPT_VAL(SQLITE_ENABLE_CEROD),
-#endif
-#if SQLITE_ENABLE_COLUMN_METADATA
-  "ENABLE_COLUMN_METADATA",
-#endif
-#if SQLITE_ENABLE_COLUMN_USED_MASK
-  "ENABLE_COLUMN_USED_MASK",
-#endif
-#if SQLITE_ENABLE_COSTMULT
-  "ENABLE_COSTMULT",
-#endif
-#if SQLITE_ENABLE_CURSOR_HINTS
-  "ENABLE_CURSOR_HINTS",
-#endif
-#if SQLITE_ENABLE_DBSTAT_VTAB
-  "ENABLE_DBSTAT_VTAB",
-#endif
-#if SQLITE_ENABLE_EXPENSIVE_ASSERT
-  "ENABLE_EXPENSIVE_ASSERT",
-#endif
-#if SQLITE_ENABLE_FTS1
-  "ENABLE_FTS1",
-#endif
-#if SQLITE_ENABLE_FTS2
-  "ENABLE_FTS2",
-#endif
-#if SQLITE_ENABLE_FTS3
-  "ENABLE_FTS3",
-#endif
-#if SQLITE_ENABLE_FTS3_PARENTHESIS
-  "ENABLE_FTS3_PARENTHESIS",
-#endif
-#if SQLITE_ENABLE_FTS3_TOKENIZER
-  "ENABLE_FTS3_TOKENIZER",
-#endif
-#if SQLITE_ENABLE_FTS4
-  "ENABLE_FTS4",
-#endif
-#if SQLITE_ENABLE_FTS5
-  "ENABLE_FTS5",
-#endif
-#if SQLITE_ENABLE_GEOPOLY
-  "ENABLE_GEOPOLY",
-#endif
-#if SQLITE_ENABLE_HIDDEN_COLUMNS
-  "ENABLE_HIDDEN_COLUMNS",
-#endif
-#if SQLITE_ENABLE_ICU
-  "ENABLE_ICU",
-#endif
-#if SQLITE_ENABLE_IOTRACE
-  "ENABLE_IOTRACE",
-#endif
-#if SQLITE_ENABLE_JSON1
-  "ENABLE_JSON1",
-#endif
-#if SQLITE_ENABLE_LOAD_EXTENSION
-  "ENABLE_LOAD_EXTENSION",
-#endif
-#ifdef SQLITE_ENABLE_LOCKING_STYLE
-  "ENABLE_LOCKING_STYLE=" CTIMEOPT_VAL(SQLITE_ENABLE_LOCKING_STYLE),
-#endif
-#if SQLITE_ENABLE_MEMORY_MANAGEMENT
-  "ENABLE_MEMORY_MANAGEMENT",
-#endif
-#if SQLITE_ENABLE_MEMSYS3
-  "ENABLE_MEMSYS3",
-#endif
-#if SQLITE_ENABLE_MEMSYS5
-  "ENABLE_MEMSYS5",
-#endif
-#if SQLITE_ENABLE_MULTIPLEX
-  "ENABLE_MULTIPLEX",
-#endif
-#if SQLITE_ENABLE_NORMALIZE
-  "ENABLE_NORMALIZE",
-#endif
-#if SQLITE_ENABLE_NULL_TRIM
-  "ENABLE_NULL_TRIM",
-#endif
-#if SQLITE_ENABLE_OVERSIZE_CELL_CHECK
-  "ENABLE_OVERSIZE_CELL_CHECK",
-#endif
-#if SQLITE_ENABLE_PREUPDATE_HOOK
-  "ENABLE_PREUPDATE_HOOK",
-#endif
-#if SQLITE_ENABLE_QPSG
-  "ENABLE_QPSG",
-#endif
-#if SQLITE_ENABLE_RBU
-  "ENABLE_RBU",
-#endif
-#if SQLITE_ENABLE_RTREE
-  "ENABLE_RTREE",
-#endif
-#if SQLITE_ENABLE_SELECTTRACE
-  "ENABLE_SELECTTRACE",
-#endif
-#if SQLITE_ENABLE_SESSION
-  "ENABLE_SESSION",
-#endif
-#if SQLITE_ENABLE_SNAPSHOT
-  "ENABLE_SNAPSHOT",
-#endif
-#if SQLITE_ENABLE_SORTER_REFERENCES
-  "ENABLE_SORTER_REFERENCES",
-#endif
-#if SQLITE_ENABLE_SQLLOG
-  "ENABLE_SQLLOG",
-#endif
-#if defined(SQLITE_ENABLE_STAT4)
-  "ENABLE_STAT4",
-#endif
-#if SQLITE_ENABLE_STMTVTAB
-  "ENABLE_STMTVTAB",
-#endif
-#if SQLITE_ENABLE_STMT_SCANSTATUS
-  "ENABLE_STMT_SCANSTATUS",
-#endif
-#if SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
-  "ENABLE_UNKNOWN_SQL_FUNCTION",
-#endif
-#if SQLITE_ENABLE_UNLOCK_NOTIFY
-  "ENABLE_UNLOCK_NOTIFY",
-#endif
-#if SQLITE_ENABLE_UPDATE_DELETE_LIMIT
-  "ENABLE_UPDATE_DELETE_LIMIT",
-#endif
-#if SQLITE_ENABLE_URI_00_ERROR
-  "ENABLE_URI_00_ERROR",
-#endif
-#if SQLITE_ENABLE_VFSTRACE
-  "ENABLE_VFSTRACE",
-#endif
-#if SQLITE_ENABLE_WHERETRACE
-  "ENABLE_WHERETRACE",
-#endif
-#if SQLITE_ENABLE_ZIPVFS
-  "ENABLE_ZIPVFS",
-#endif
-#if SQLITE_EXPLAIN_ESTIMATED_ROWS
-  "EXPLAIN_ESTIMATED_ROWS",
-#endif
-#if SQLITE_EXTRA_IFNULLROW
-  "EXTRA_IFNULLROW",
-#endif
-#ifdef SQLITE_EXTRA_INIT
-  "EXTRA_INIT=" CTIMEOPT_VAL(SQLITE_EXTRA_INIT),
-#endif
-#ifdef SQLITE_EXTRA_SHUTDOWN
-  "EXTRA_SHUTDOWN=" CTIMEOPT_VAL(SQLITE_EXTRA_SHUTDOWN),
-#endif
-#ifdef SQLITE_FTS3_MAX_EXPR_DEPTH
-  "FTS3_MAX_EXPR_DEPTH=" CTIMEOPT_VAL(SQLITE_FTS3_MAX_EXPR_DEPTH),
-#endif
-#if SQLITE_FTS5_ENABLE_TEST_MI
-  "FTS5_ENABLE_TEST_MI",
-#endif
-#if SQLITE_FTS5_NO_WITHOUT_ROWID
-  "FTS5_NO_WITHOUT_ROWID",
-#endif
-#if SQLITE_HAS_CODEC
-  "HAS_CODEC",
-#endif
-#if HAVE_ISNAN || SQLITE_HAVE_ISNAN
-  "HAVE_ISNAN",
-#endif
-#if SQLITE_HOMEGROWN_RECURSIVE_MUTEX
-  "HOMEGROWN_RECURSIVE_MUTEX",
-#endif
-#if SQLITE_IGNORE_AFP_LOCK_ERRORS
-  "IGNORE_AFP_LOCK_ERRORS",
-#endif
-#if SQLITE_IGNORE_FLOCK_LOCK_ERRORS
-  "IGNORE_FLOCK_LOCK_ERRORS",
-#endif
-#if SQLITE_INLINE_MEMCPY
-  "INLINE_MEMCPY",
-#endif
-#if SQLITE_INT64_TYPE
-  "INT64_TYPE",
-#endif
-#ifdef SQLITE_INTEGRITY_CHECK_ERROR_MAX
-  "INTEGRITY_CHECK_ERROR_MAX=" CTIMEOPT_VAL(SQLITE_INTEGRITY_CHECK_ERROR_MAX),
-#endif
-#if SQLITE_LIKE_DOESNT_MATCH_BLOBS
-  "LIKE_DOESNT_MATCH_BLOBS",
-#endif
-#if SQLITE_LOCK_TRACE
-  "LOCK_TRACE",
-#endif
-#if SQLITE_LOG_CACHE_SPILL
-  "LOG_CACHE_SPILL",
-#endif
-#ifdef SQLITE_MALLOC_SOFT_LIMIT
-  "MALLOC_SOFT_LIMIT=" CTIMEOPT_VAL(SQLITE_MALLOC_SOFT_LIMIT),
-#endif
-#ifdef SQLITE_MAX_ATTACHED
-  "MAX_ATTACHED=" CTIMEOPT_VAL(SQLITE_MAX_ATTACHED),
-#endif
-#ifdef SQLITE_MAX_COLUMN
-  "MAX_COLUMN=" CTIMEOPT_VAL(SQLITE_MAX_COLUMN),
-#endif
-#ifdef SQLITE_MAX_COMPOUND_SELECT
-  "MAX_COMPOUND_SELECT=" CTIMEOPT_VAL(SQLITE_MAX_COMPOUND_SELECT),
-#endif
-#ifdef SQLITE_MAX_DEFAULT_PAGE_SIZE
-  "MAX_DEFAULT_PAGE_SIZE=" CTIMEOPT_VAL(SQLITE_MAX_DEFAULT_PAGE_SIZE),
-#endif
-#ifdef SQLITE_MAX_EXPR_DEPTH
-  "MAX_EXPR_DEPTH=" CTIMEOPT_VAL(SQLITE_MAX_EXPR_DEPTH),
-#endif
-#ifdef SQLITE_MAX_FUNCTION_ARG
-  "MAX_FUNCTION_ARG=" CTIMEOPT_VAL(SQLITE_MAX_FUNCTION_ARG),
-#endif
-#ifdef SQLITE_MAX_LENGTH
-  "MAX_LENGTH=" CTIMEOPT_VAL(SQLITE_MAX_LENGTH),
-#endif
-#ifdef SQLITE_MAX_LIKE_PATTERN_LENGTH
-  "MAX_LIKE_PATTERN_LENGTH=" CTIMEOPT_VAL(SQLITE_MAX_LIKE_PATTERN_LENGTH),
-#endif
-#ifdef SQLITE_MAX_MEMORY
-  "MAX_MEMORY=" CTIMEOPT_VAL(SQLITE_MAX_MEMORY),
-#endif
-#ifdef SQLITE_MAX_MMAP_SIZE
-  "MAX_MMAP_SIZE=" CTIMEOPT_VAL(SQLITE_MAX_MMAP_SIZE),
-#endif
-#ifdef SQLITE_MAX_MMAP_SIZE_
-  "MAX_MMAP_SIZE_=" CTIMEOPT_VAL(SQLITE_MAX_MMAP_SIZE_),
-#endif
-#ifdef SQLITE_MAX_PAGE_COUNT
-  "MAX_PAGE_COUNT=" CTIMEOPT_VAL(SQLITE_MAX_PAGE_COUNT),
-#endif
-#ifdef SQLITE_MAX_PAGE_SIZE
-  "MAX_PAGE_SIZE=" CTIMEOPT_VAL(SQLITE_MAX_PAGE_SIZE),
-#endif
-#ifdef SQLITE_MAX_SCHEMA_RETRY
-  "MAX_SCHEMA_RETRY=" CTIMEOPT_VAL(SQLITE_MAX_SCHEMA_RETRY),
-#endif
-#ifdef SQLITE_MAX_SQL_LENGTH
-  "MAX_SQL_LENGTH=" CTIMEOPT_VAL(SQLITE_MAX_SQL_LENGTH),
-#endif
-#ifdef SQLITE_MAX_TRIGGER_DEPTH
-  "MAX_TRIGGER_DEPTH=" CTIMEOPT_VAL(SQLITE_MAX_TRIGGER_DEPTH),
-#endif
-#ifdef SQLITE_MAX_VARIABLE_NUMBER
-  "MAX_VARIABLE_NUMBER=" CTIMEOPT_VAL(SQLITE_MAX_VARIABLE_NUMBER),
-#endif
-#ifdef SQLITE_MAX_VDBE_OP
-  "MAX_VDBE_OP=" CTIMEOPT_VAL(SQLITE_MAX_VDBE_OP),
-#endif
-#ifdef SQLITE_MAX_WORKER_THREADS
-  "MAX_WORKER_THREADS=" CTIMEOPT_VAL(SQLITE_MAX_WORKER_THREADS),
-#endif
-#if SQLITE_MEMDEBUG
-  "MEMDEBUG",
-#endif
-#if SQLITE_MIXED_ENDIAN_64BIT_FLOAT
-  "MIXED_ENDIAN_64BIT_FLOAT",
-#endif
-#if SQLITE_MMAP_READWRITE
-  "MMAP_READWRITE",
-#endif
-#if SQLITE_MUTEX_NOOP
-  "MUTEX_NOOP",
-#endif
-#if SQLITE_MUTEX_NREF
-  "MUTEX_NREF",
-#endif
-#if SQLITE_MUTEX_OMIT
-  "MUTEX_OMIT",
-#endif
-#if SQLITE_MUTEX_PTHREADS
-  "MUTEX_PTHREADS",
-#endif
-#if SQLITE_MUTEX_W32
-  "MUTEX_W32",
-#endif
-#if SQLITE_NEED_ERR_NAME
-  "NEED_ERR_NAME",
-#endif
-#if SQLITE_NOINLINE
-  "NOINLINE",
-#endif
-#if SQLITE_NO_SYNC
-  "NO_SYNC",
-#endif
-#if SQLITE_OMIT_ALTERTABLE
-  "OMIT_ALTERTABLE",
-#endif
-#if SQLITE_OMIT_ANALYZE
-  "OMIT_ANALYZE",
-#endif
-#if SQLITE_OMIT_ATTACH
-  "OMIT_ATTACH",
-#endif
-#if SQLITE_OMIT_AUTHORIZATION
-  "OMIT_AUTHORIZATION",
-#endif
-#if SQLITE_OMIT_AUTOINCREMENT
-  "OMIT_AUTOINCREMENT",
-#endif
-#if SQLITE_OMIT_AUTOINIT
-  "OMIT_AUTOINIT",
-#endif
-#if SQLITE_OMIT_AUTOMATIC_INDEX
-  "OMIT_AUTOMATIC_INDEX",
-#endif
-#if SQLITE_OMIT_AUTORESET
-  "OMIT_AUTORESET",
-#endif
-#if SQLITE_OMIT_AUTOVACUUM
-  "OMIT_AUTOVACUUM",
-#endif
-#if SQLITE_OMIT_BETWEEN_OPTIMIZATION
-  "OMIT_BETWEEN_OPTIMIZATION",
-#endif
-#if SQLITE_OMIT_BLOB_LITERAL
-  "OMIT_BLOB_LITERAL",
-#endif
-#if SQLITE_OMIT_BTREECOUNT
-  "OMIT_BTREECOUNT",
-#endif
-#if SQLITE_OMIT_CAST
-  "OMIT_CAST",
-#endif
-#if SQLITE_OMIT_CHECK
-  "OMIT_CHECK",
-#endif
-#if SQLITE_OMIT_COMPLETE
-  "OMIT_COMPLETE",
-#endif
-#if SQLITE_OMIT_COMPOUND_SELECT
-  "OMIT_COMPOUND_SELECT",
-#endif
-#if SQLITE_OMIT_CONFLICT_CLAUSE
-  "OMIT_CONFLICT_CLAUSE",
-#endif
-#if SQLITE_OMIT_CTE
-  "OMIT_CTE",
-#endif
-#if SQLITE_OMIT_DATETIME_FUNCS
-  "OMIT_DATETIME_FUNCS",
-#endif
-#if SQLITE_OMIT_DECLTYPE
-  "OMIT_DECLTYPE",
-#endif
-#if SQLITE_OMIT_DEPRECATED
-  "OMIT_DEPRECATED",
-#endif
-#if SQLITE_OMIT_DISKIO
-  "OMIT_DISKIO",
-#endif
-#if SQLITE_OMIT_EXPLAIN
-  "OMIT_EXPLAIN",
-#endif
-#if SQLITE_OMIT_FLAG_PRAGMAS
-  "OMIT_FLAG_PRAGMAS",
-#endif
-#if SQLITE_OMIT_FLOATING_POINT
-  "OMIT_FLOATING_POINT",
-#endif
-#if SQLITE_OMIT_FOREIGN_KEY
-  "OMIT_FOREIGN_KEY",
-#endif
-#if SQLITE_OMIT_GET_TABLE
-  "OMIT_GET_TABLE",
-#endif
-#if SQLITE_OMIT_HEX_INTEGER
-  "OMIT_HEX_INTEGER",
-#endif
-#if SQLITE_OMIT_INCRBLOB
-  "OMIT_INCRBLOB",
-#endif
-#if SQLITE_OMIT_INTEGRITY_CHECK
-  "OMIT_INTEGRITY_CHECK",
-#endif
-#if SQLITE_OMIT_LIKE_OPTIMIZATION
-  "OMIT_LIKE_OPTIMIZATION",
-#endif
-#if SQLITE_OMIT_LOAD_EXTENSION
-  "OMIT_LOAD_EXTENSION",
-#endif
-#if SQLITE_OMIT_LOCALTIME
-  "OMIT_LOCALTIME",
-#endif
-#if SQLITE_OMIT_LOOKASIDE
-  "OMIT_LOOKASIDE",
-#endif
-#if SQLITE_OMIT_MEMORYDB
-  "OMIT_MEMORYDB",
-#endif
-#if SQLITE_OMIT_OR_OPTIMIZATION
-  "OMIT_OR_OPTIMIZATION",
-#endif
-#if SQLITE_OMIT_PAGER_PRAGMAS
-  "OMIT_PAGER_PRAGMAS",
-#endif
-#if SQLITE_OMIT_PARSER_TRACE
-  "OMIT_PARSER_TRACE",
-#endif
-#if SQLITE_OMIT_POPEN
-  "OMIT_POPEN",
-#endif
-#if SQLITE_OMIT_PRAGMA
-  "OMIT_PRAGMA",
-#endif
-#if SQLITE_OMIT_PROGRESS_CALLBACK
-  "OMIT_PROGRESS_CALLBACK",
-#endif
-#if SQLITE_OMIT_QUICKBALANCE
-  "OMIT_QUICKBALANCE",
-#endif
-#if SQLITE_OMIT_REINDEX
-  "OMIT_REINDEX",
-#endif
-#if SQLITE_OMIT_SCHEMA_PRAGMAS
-  "OMIT_SCHEMA_PRAGMAS",
-#endif
-#if SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS
-  "OMIT_SCHEMA_VERSION_PRAGMAS",
-#endif
-#if SQLITE_OMIT_SHARED_CACHE
-  "OMIT_SHARED_CACHE",
-#endif
-#if SQLITE_OMIT_SHUTDOWN_DIRECTORIES
-  "OMIT_SHUTDOWN_DIRECTORIES",
-#endif
-#if SQLITE_OMIT_SUBQUERY
-  "OMIT_SUBQUERY",
-#endif
-#if SQLITE_OMIT_TCL_VARIABLE
-  "OMIT_TCL_VARIABLE",
-#endif
-#if SQLITE_OMIT_TEMPDB
-  "OMIT_TEMPDB",
-#endif
-#if SQLITE_OMIT_TEST_CONTROL
-  "OMIT_TEST_CONTROL",
-#endif
-#if SQLITE_OMIT_TRACE
-  "OMIT_TRACE",
-#endif
-#if SQLITE_OMIT_TRIGGER
-  "OMIT_TRIGGER",
-#endif
-#if SQLITE_OMIT_TRUNCATE_OPTIMIZATION
-  "OMIT_TRUNCATE_OPTIMIZATION",
-#endif
-#if SQLITE_OMIT_UTF16
-  "OMIT_UTF16",
-#endif
-#if SQLITE_OMIT_VACUUM
-  "OMIT_VACUUM",
-#endif
-#if SQLITE_OMIT_VIEW
-  "OMIT_VIEW",
-#endif
-#if SQLITE_OMIT_VIRTUALTABLE
-  "OMIT_VIRTUALTABLE",
-#endif
-#if SQLITE_OMIT_WAL
-  "OMIT_WAL",
-#endif
-#if SQLITE_OMIT_WSD
-  "OMIT_WSD",
-#endif
-#if SQLITE_OMIT_XFER_OPT
-  "OMIT_XFER_OPT",
-#endif
-#if SQLITE_PCACHE_SEPARATE_HEADER
-  "PCACHE_SEPARATE_HEADER",
-#endif
-#if SQLITE_PERFORMANCE_TRACE
-  "PERFORMANCE_TRACE",
-#endif
-#if SQLITE_POWERSAFE_OVERWRITE
-  "POWERSAFE_OVERWRITE",
-#endif
-#if SQLITE_PREFER_PROXY_LOCKING
-  "PREFER_PROXY_LOCKING",
-#endif
-#if SQLITE_PROXY_DEBUG
-  "PROXY_DEBUG",
-#endif
-#if SQLITE_REVERSE_UNORDERED_SELECTS
-  "REVERSE_UNORDERED_SELECTS",
-#endif
-#if SQLITE_RTREE_INT_ONLY
-  "RTREE_INT_ONLY",
-#endif
-#if SQLITE_SECURE_DELETE
-  "SECURE_DELETE",
-#endif
-#if SQLITE_SMALL_STACK
-  "SMALL_STACK",
-#endif
-#ifdef SQLITE_SORTER_PMASZ
-  "SORTER_PMASZ=" CTIMEOPT_VAL(SQLITE_SORTER_PMASZ),
-#endif
-#if SQLITE_SOUNDEX
-  "SOUNDEX",
-#endif
-#ifdef SQLITE_STAT4_SAMPLES
-  "STAT4_SAMPLES=" CTIMEOPT_VAL(SQLITE_STAT4_SAMPLES),
-#endif
-#ifdef SQLITE_STMTJRNL_SPILL
-  "STMTJRNL_SPILL=" CTIMEOPT_VAL(SQLITE_STMTJRNL_SPILL),
-#endif
-#if SQLITE_SUBSTR_COMPATIBILITY
-  "SUBSTR_COMPATIBILITY",
-#endif
-#if SQLITE_SYSTEM_MALLOC
-  "SYSTEM_MALLOC",
-#endif
-#if SQLITE_TCL
-  "TCL",
-#endif
-#ifdef SQLITE_TEMP_STORE
-  "TEMP_STORE=" CTIMEOPT_VAL(SQLITE_TEMP_STORE),
-#endif
-#if SQLITE_TEST
-  "TEST",
-#endif
-#if defined(SQLITE_THREADSAFE)
-  "THREADSAFE=" CTIMEOPT_VAL(SQLITE_THREADSAFE),
-#elif defined(THREADSAFE)
-  "THREADSAFE=" CTIMEOPT_VAL(THREADSAFE),
-#else
-  "THREADSAFE=1",
-#endif
-#if SQLITE_UNLINK_AFTER_CLOSE
-  "UNLINK_AFTER_CLOSE",
-#endif
-#if SQLITE_UNTESTABLE
-  "UNTESTABLE",
-#endif
-#if SQLITE_USER_AUTHENTICATION
-  "USER_AUTHENTICATION",
-#endif
-#if SQLITE_USE_ALLOCA
-  "USE_ALLOCA",
-#endif
-#if SQLITE_USE_FCNTL_TRACE
-  "USE_FCNTL_TRACE",
-#endif
-#if SQLITE_USE_URI
-  "USE_URI",
-#endif
-#if SQLITE_VDBE_COVERAGE
-  "VDBE_COVERAGE",
-#endif
-#if SQLITE_WIN32_MALLOC
-  "WIN32_MALLOC",
-#endif
-#if SQLITE_ZERO_MALLOC
-  "ZERO_MALLOC",
-#endif
-/* 
-** END CODE GENERATED BY tool/mkctime.tcl 
-*/
-};
-
-SQLITE_PRIVATE const char **tdsqlite3CompileOptions(int *pnOpt){
-  *pnOpt = sizeof(tdsqlite3azCompileOpt) / sizeof(tdsqlite3azCompileOpt[0]);
-  return (const char**)tdsqlite3azCompileOpt;
-}
-
-#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
-
-/************** End of ctime.c ***********************************************/
-/************** Begin file sqliteInt.h ***************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Internal interface definitions for SQLite.
-**
-*/
-#ifndef SQLITEINT_H
-#define SQLITEINT_H
-
-/* Special Comments:
-**
-** Some comments have special meaning to the tools that measure test
-** coverage:
-**
-**    NO_TEST                     - The branches on this line are not
-**                                  measured by branch coverage.  This is
-**                                  used on lines of code that actually
-**                                  implement parts of coverage testing.
-**
-**    OPTIMIZATION-IF-TRUE        - This branch is allowed to alway be false
-**                                  and the correct answer is still obtained,
-**                                  though perhaps more slowly.
-**
-**    OPTIMIZATION-IF-FALSE       - This branch is allowed to alway be true
-**                                  and the correct answer is still obtained,
-**                                  though perhaps more slowly.
-**
-**    PREVENTS-HARMLESS-OVERREAD  - This branch prevents a buffer overread
-**                                  that would be harmless and undetectable
-**                                  if it did occur.  
-**
-** In all cases, the special comment must be enclosed in the usual
-** slash-asterisk...asterisk-slash comment marks, with no spaces between the 
-** asterisks and the comment text.
-*/
-
-/*
-** Make sure the Tcl calling convention macro is defined.  This macro is
-** only used by test code and Tcl integration code.
-*/
-#ifndef SQLITE_TCLAPI
-#  define SQLITE_TCLAPI
-#endif
-
-/*
-** Include the header file used to customize the compiler options for MSVC.
-** This should be done first so that it can successfully prevent spurious
-** compiler warnings due to subsequent content in this file and other files
-** that are included by this file.
-*/
-/************** Include msvc.h in the middle of sqliteInt.h ******************/
-/************** Begin file msvc.h ********************************************/
-/*
-** 2015 January 12
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains code that is specific to MSVC.
-*/
-#ifndef SQLITE_MSVC_H
-#define SQLITE_MSVC_H
-
-#if defined(_MSC_VER)
-#pragma warning(disable : 4054)
-#pragma warning(disable : 4055)
-#pragma warning(disable : 4100)
-#pragma warning(disable : 4127)
-#pragma warning(disable : 4130)
-#pragma warning(disable : 4152)
-#pragma warning(disable : 4189)
-#pragma warning(disable : 4206)
-#pragma warning(disable : 4210)
-#pragma warning(disable : 4232)
-#pragma warning(disable : 4244)
-#pragma warning(disable : 4305)
-#pragma warning(disable : 4306)
-#pragma warning(disable : 4702)
-#pragma warning(disable : 4706)
-#endif /* defined(_MSC_VER) */
-
-#if defined(_MSC_VER) && !defined(_WIN64)
-#undef SQLITE_4_BYTE_ALIGNED_MALLOC
-#define SQLITE_4_BYTE_ALIGNED_MALLOC
-#endif /* defined(_MSC_VER) && !defined(_WIN64) */
-
-#endif /* SQLITE_MSVC_H */
-
-/************** End of msvc.h ************************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-
-/*
-** Special setup for VxWorks
-*/
-/************** Include vxworks.h in the middle of sqliteInt.h ***************/
-/************** Begin file vxworks.h *****************************************/
-/*
-** 2015-03-02
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains code that is specific to Wind River's VxWorks
-*/
-#if defined(__RTP__) || defined(_WRS_KERNEL)
-/* This is VxWorks.  Set up things specially for that OS
-*/
-#include <vxWorks.h>
-#include <pthread.h>  /* amalgamator: dontcache */
-#define OS_VXWORKS 1
-#define SQLITE_OS_OTHER 0
-#define SQLITE_HOMEGROWN_RECURSIVE_MUTEX 1
-#define SQLITE_OMIT_LOAD_EXTENSION 1
-#define SQLITE_ENABLE_LOCKING_STYLE 0
-#define HAVE_UTIME 1
-#else
-/* This is not VxWorks. */
-#define OS_VXWORKS 0
-#define HAVE_FCHOWN 1
-#define HAVE_READLINK 1
-#define HAVE_LSTAT 1
-#endif /* defined(_WRS_KERNEL) */
-
-/************** End of vxworks.h *********************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-
-/*
-** These #defines should enable >2GB file support on POSIX if the
-** underlying operating system supports it.  If the OS lacks
-** large file support, or if the OS is windows, these should be no-ops.
-**
-** Ticket #2739:  The _LARGEFILE_SOURCE macro must appear before any
-** system #includes.  Hence, this block of code must be the very first
-** code in all source files.
-**
-** Large file support can be disabled using the -DSQLITE_DISABLE_LFS switch
-** on the compiler command line.  This is necessary if you are compiling
-** on a recent machine (ex: Red Hat 7.2) but you want your code to work
-** on an older machine (ex: Red Hat 6.0).  If you compile on Red Hat 7.2
-** without this option, LFS is enable.  But LFS does not exist in the kernel
-** in Red Hat 6.0, so the code won't work.  Hence, for maximum binary
-** portability you should omit LFS.
-**
-** The previous paragraph was written in 2005.  (This paragraph is written
-** on 2008-11-28.) These days, all Linux kernels support large files, so
-** you should probably leave LFS enabled.  But some embedded platforms might
-** lack LFS in which case the SQLITE_DISABLE_LFS macro might still be useful.
-**
-** Similar is true for Mac OS X.  LFS is only supported on Mac OS X 9 and later.
-*/
-#ifndef SQLITE_DISABLE_LFS
-# define _LARGE_FILE       1
-# ifndef _FILE_OFFSET_BITS
-#   define _FILE_OFFSET_BITS 64
-# endif
-# define _LARGEFILE_SOURCE 1
-#endif
-
-/* The GCC_VERSION and MSVC_VERSION macros are used to
-** conditionally include optimizations for each of these compilers.  A
-** value of 0 means that compiler is not being used.  The
-** SQLITE_DISABLE_INTRINSIC macro means do not use any compiler-specific
-** optimizations, and hence set all compiler macros to 0
-**
-** There was once also a CLANG_VERSION macro.  However, we learn that the
-** version numbers in clang are for "marketing" only and are inconsistent
-** and unreliable.  Fortunately, all versions of clang also recognize the
-** gcc version numbers and have reasonable settings for gcc version numbers,
-** so the GCC_VERSION macro will be set to a correct non-zero value even
-** when compiling with clang.
-*/
-#if defined(__GNUC__) && !defined(SQLITE_DISABLE_INTRINSIC)
-# define GCC_VERSION (__GNUC__*1000000+__GNUC_MINOR__*1000+__GNUC_PATCHLEVEL__)
-#else
-# define GCC_VERSION 0
-#endif
-#if defined(_MSC_VER) && !defined(SQLITE_DISABLE_INTRINSIC)
-# define MSVC_VERSION _MSC_VER
-#else
-# define MSVC_VERSION 0
-#endif
-
-/* Needed for various definitions... */
-#if defined(__GNUC__) && !defined(_GNU_SOURCE)
-# define _GNU_SOURCE
-#endif
-
-#if defined(__OpenBSD__) && !defined(_BSD_SOURCE)
-# define _BSD_SOURCE
-#endif
-
-/*
-** For MinGW, check to see if we can include the header file containing its
-** version information, among other things.  Normally, this internal MinGW
-** header file would [only] be included automatically by other MinGW header
-** files; however, the contained version information is now required by this
-** header file to work around binary compatibility issues (see below) and
-** this is the only known way to reliably obtain it.  This entire #if block
-** would be completely unnecessary if there was any other way of detecting
-** MinGW via their preprocessor (e.g. if they customized their GCC to define
-** some MinGW-specific macros).  When compiling for MinGW, either the
-** _HAVE_MINGW_H or _HAVE__MINGW_H (note the extra underscore) macro must be
-** defined; otherwise, detection of conditions specific to MinGW will be
-** disabled.
-*/
-#if defined(_HAVE_MINGW_H)
-# include "mingw.h"
-#elif defined(_HAVE__MINGW_H)
-# include "_mingw.h"
-#endif
-
-/*
-** For MinGW version 4.x (and higher), check to see if the _USE_32BIT_TIME_T
-** define is required to maintain binary compatibility with the MSVC runtime
-** library in use (e.g. for Windows XP).
-*/
-#if !defined(_USE_32BIT_TIME_T) && !defined(_USE_64BIT_TIME_T) && \
-    defined(_WIN32) && !defined(_WIN64) && \
-    defined(__MINGW_MAJOR_VERSION) && __MINGW_MAJOR_VERSION >= 4 && \
-    defined(__MSVCRT__)
-# define _USE_32BIT_TIME_T
-#endif
-
-/* The public SQLite interface.  The _FILE_OFFSET_BITS macro must appear
-** first in QNX.  Also, the _USE_32BIT_TIME_T macro must appear first for
-** MinGW.
-*/
-/************** Include sqlite3.h in the middle of sqliteInt.h ***************/
-/************** Begin file sqlite3.h *****************************************/
-/*
-** 2001-09-15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the interface that the SQLite library
-** presents to client programs.  If a C-function, structure, datatype,
-** or constant definition does not appear in this file, then it is
-** not a published API of SQLite, is subject to change without
-** notice, and should not be referenced by programs that use SQLite.
-**
-** Some of the definitions that are in this file are marked as
-** "experimental".  Experimental interfaces are normally new
-** features recently added to SQLite.  We do not anticipate changes
-** to experimental interfaces but reserve the right to make minor changes
-** if experience from use "in the wild" suggest such changes are prudent.
-**
-** The official C-language API documentation for SQLite is derived
-** from comments in this file.  This file is the authoritative source
-** on how SQLite interfaces are supposed to operate.
-**
-** The name of this file under configuration management is "sqlite.h.in".
-** The makefile makes some minor changes to this file (such as inserting
-** the version number) and changes its name to "sqlite3.h" as
-** part of the build process.
-*/
-#ifndef SQLITE3_H
-#define SQLITE3_H
-#include <stdarg.h>     /* Needed for the definition of va_list */
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#if 0
-extern "C" {
-#endif
-
-
-/*
-** Provide the ability to override linkage features of the interface.
-*/
-#ifndef SQLITE_EXTERN
-# define SQLITE_EXTERN extern
-#endif
-#ifndef SQLITE_API
-# define SQLITE_API
-#endif
-#ifndef SQLITE_CDECL
-# define SQLITE_CDECL
-#endif
-#ifndef SQLITE_APICALL
-# define SQLITE_APICALL
-#endif
-#ifndef SQLITE_STDCALL
-# define SQLITE_STDCALL SQLITE_APICALL
-#endif
-#ifndef SQLITE_CALLBACK
-# define SQLITE_CALLBACK
-#endif
-#ifndef SQLITE_SYSAPI
-# define SQLITE_SYSAPI
-#endif
-
-/*
-** These no-op macros are used in front of interfaces to mark those
-** interfaces as either deprecated or experimental.  New applications
-** should not use deprecated interfaces - they are supported for backwards
-** compatibility only.  Application writers should be aware that
-** experimental interfaces are subject to change in point releases.
-**
-** These macros used to resolve to various kinds of compiler magic that
-** would generate warning messages when they were used.  But that
-** compiler magic ended up generating such a flurry of bug reports
-** that we have taken it all out and gone back to using simple
-** noop macros.
-*/
-#define SQLITE_DEPRECATED
-#define SQLITE_EXPERIMENTAL
-
-/*
-** Ensure these symbols were not defined by some previous header file.
-*/
-#ifdef SQLITE_VERSION
-# undef SQLITE_VERSION
-#endif
-#ifdef SQLITE_VERSION_NUMBER
-# undef SQLITE_VERSION_NUMBER
-#endif
-
-/*
-** CAPI3REF: Compile-Time Library Version Numbers
-**
-** ^(The [SQLITE_VERSION] C preprocessor macro in the sqlite3.h header
-** evaluates to a string literal that is the SQLite version in the
-** format "X.Y.Z" where X is the major version number (always 3 for
-** SQLite3) and Y is the minor version number and Z is the release number.)^
-** ^(The [SQLITE_VERSION_NUMBER] C preprocessor macro resolves to an integer
-** with the value (X*1000000 + Y*1000 + Z) where X, Y, and Z are the same
-** numbers used in [SQLITE_VERSION].)^
-** The SQLITE_VERSION_NUMBER for any given release of SQLite will also
-** be larger than the release from which it is derived.  Either Y will
-** be held constant and Z will be incremented or else Y will be incremented
-** and Z will be reset to zero.
-**
-** Since [version 3.6.18] ([dateof:3.6.18]), 
-** SQLite source code has been stored in the
-** <a href="http://www.fossil-scm.org/">Fossil configuration management
-** system</a>.  ^The SQLITE_SOURCE_ID macro evaluates to
-** a string which identifies a particular check-in of SQLite
-** within its configuration management system.  ^The SQLITE_SOURCE_ID
-** string contains the date and time of the check-in (UTC) and a SHA1
-** or SHA3-256 hash of the entire source tree.  If the source code has
-** been edited in any way since it was last checked in, then the last
-** four hexadecimal digits of the hash may be modified.
-**
-** See also: [tdsqlite3_libversion()],
-** [tdsqlite3_libversion_number()], [tdsqlite3_sourceid()],
-** [sqlite_version()] and [sqlite_source_id()].
-*/
-#define SQLITE_VERSION        "3.31.0"
-#define SQLITE_VERSION_NUMBER 3031000
-#define SQLITE_SOURCE_ID      "2020-01-22 18:38:59 f6affdd41608946fcfcea914ece149038a8b25a62bbe719ed2561c649b86alt1"
-
-/*
-** CAPI3REF: Run-Time Library Version Numbers
-** KEYWORDS: tdsqlite3_version tdsqlite3_sourceid
-**
-** These interfaces provide the same information as the [SQLITE_VERSION],
-** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros
-** but are associated with the library instead of the header file.  ^(Cautious
-** programmers might include assert() statements in their application to
-** verify that values returned by these interfaces match the macros in
-** the header, and thus ensure that the application is
-** compiled with matching library and header files.
-**
-** <blockquote><pre>
-** assert( tdsqlite3_libversion_number()==SQLITE_VERSION_NUMBER );
-** assert( strncmp(tdsqlite3_sourceid(),SQLITE_SOURCE_ID,80)==0 );
-** assert( strcmp(tdsqlite3_libversion(),SQLITE_VERSION)==0 );
-** </pre></blockquote>)^
-**
-** ^The tdsqlite3_version[] string constant contains the text of [SQLITE_VERSION]
-** macro.  ^The tdsqlite3_libversion() function returns a pointer to the
-** to the tdsqlite3_version[] string constant.  The tdsqlite3_libversion()
-** function is provided for use in DLLs since DLL users usually do not have
-** direct access to string constants within the DLL.  ^The
-** tdsqlite3_libversion_number() function returns an integer equal to
-** [SQLITE_VERSION_NUMBER].  ^(The tdsqlite3_sourceid() function returns 
-** a pointer to a string constant whose value is the same as the 
-** [SQLITE_SOURCE_ID] C preprocessor macro.  Except if SQLite is built
-** using an edited copy of [the amalgamation], then the last four characters
-** of the hash might be different from [SQLITE_SOURCE_ID].)^
-**
-** See also: [sqlite_version()] and [sqlite_source_id()].
-*/
-SQLITE_API const char tdsqlite3_version[] = SQLITE_VERSION;
-SQLITE_API const char *tdsqlite3_libversion(void);
-SQLITE_API const char *tdsqlite3_sourceid(void);
-SQLITE_API int tdsqlite3_libversion_number(void);
-
-/*
-** CAPI3REF: Run-Time Library Compilation Options Diagnostics
-**
-** ^The tdsqlite3_compileoption_used() function returns 0 or 1 
-** indicating whether the specified option was defined at 
-** compile time.  ^The SQLITE_ prefix may be omitted from the 
-** option name passed to tdsqlite3_compileoption_used().  
-**
-** ^The tdsqlite3_compileoption_get() function allows iterating
-** over the list of options that were defined at compile time by
-** returning the N-th compile time option string.  ^If N is out of range,
-** tdsqlite3_compileoption_get() returns a NULL pointer.  ^The SQLITE_ 
-** prefix is omitted from any strings returned by 
-** tdsqlite3_compileoption_get().
-**
-** ^Support for the diagnostic functions tdsqlite3_compileoption_used()
-** and tdsqlite3_compileoption_get() may be omitted by specifying the 
-** [SQLITE_OMIT_COMPILEOPTION_DIAGS] option at compile time.
-**
-** See also: SQL functions [sqlite_compileoption_used()] and
-** [sqlite_compileoption_get()] and the [compile_options pragma].
-*/
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-SQLITE_API int tdsqlite3_compileoption_used(const char *zOptName);
-SQLITE_API const char *tdsqlite3_compileoption_get(int N);
-#else
-# define tdsqlite3_compileoption_used(X) 0
-# define tdsqlite3_compileoption_get(X)  ((void*)0)
-#endif
-
-/*
-** CAPI3REF: Test To See If The Library Is Threadsafe
-**
-** ^The tdsqlite3_threadsafe() function returns zero if and only if
-** SQLite was compiled with mutexing code omitted due to the
-** [SQLITE_THREADSAFE] compile-time option being set to 0.
-**
-** SQLite can be compiled with or without mutexes.  When
-** the [SQLITE_THREADSAFE] C preprocessor macro is 1 or 2, mutexes
-** are enabled and SQLite is threadsafe.  When the
-** [SQLITE_THREADSAFE] macro is 0, 
-** the mutexes are omitted.  Without the mutexes, it is not safe
-** to use SQLite concurrently from more than one thread.
-**
-** Enabling mutexes incurs a measurable performance penalty.
-** So if speed is of utmost importance, it makes sense to disable
-** the mutexes.  But for maximum safety, mutexes should be enabled.
-** ^The default behavior is for mutexes to be enabled.
-**
-** This interface can be used by an application to make sure that the
-** version of SQLite that it is linking against was compiled with
-** the desired setting of the [SQLITE_THREADSAFE] macro.
-**
-** This interface only reports on the compile-time mutex setting
-** of the [SQLITE_THREADSAFE] flag.  If SQLite is compiled with
-** SQLITE_THREADSAFE=1 or =2 then mutexes are enabled by default but
-** can be fully or partially disabled using a call to [tdsqlite3_config()]
-** with the verbs [SQLITE_CONFIG_SINGLETHREAD], [SQLITE_CONFIG_MULTITHREAD],
-** or [SQLITE_CONFIG_SERIALIZED].  ^(The return value of the
-** tdsqlite3_threadsafe() function shows only the compile-time setting of
-** thread safety, not any run-time changes to that setting made by
-** tdsqlite3_config(). In other words, the return value from tdsqlite3_threadsafe()
-** is unchanged by calls to tdsqlite3_config().)^
-**
-** See the [threading mode] documentation for additional information.
-*/
-SQLITE_API int tdsqlite3_threadsafe(void);
-
-/*
-** CAPI3REF: Database Connection Handle
-** KEYWORDS: {database connection} {database connections}
-**
-** Each open SQLite database is represented by a pointer to an instance of
-** the opaque structure named "tdsqlite3".  It is useful to think of an tdsqlite3
-** pointer as an object.  The [tdsqlite3_open()], [tdsqlite3_open16()], and
-** [tdsqlite3_open_v2()] interfaces are its constructors, and [tdsqlite3_close()]
-** and [tdsqlite3_close_v2()] are its destructors.  There are many other
-** interfaces (such as
-** [tdsqlite3_prepare_v2()], [tdsqlite3_create_function()], and
-** [tdsqlite3_busy_timeout()] to name but three) that are methods on an
-** tdsqlite3 object.
-*/
-typedef struct tdsqlite3 tdsqlite3;
-
-/*
-** CAPI3REF: 64-Bit Integer Types
-** KEYWORDS: sqlite_int64 sqlite_uint64
-**
-** Because there is no cross-platform way to specify 64-bit integer types
-** SQLite includes typedefs for 64-bit signed and unsigned integers.
-**
-** The tdsqlite3_int64 and tdsqlite3_uint64 are the preferred type definitions.
-** The sqlite_int64 and sqlite_uint64 types are supported for backwards
-** compatibility only.
-**
-** ^The tdsqlite3_int64 and sqlite_int64 types can store integer values
-** between -9223372036854775808 and +9223372036854775807 inclusive.  ^The
-** tdsqlite3_uint64 and sqlite_uint64 types can store integer values 
-** between 0 and +18446744073709551615 inclusive.
-*/
-#ifdef SQLITE_INT64_TYPE
-  typedef SQLITE_INT64_TYPE sqlite_int64;
-# ifdef SQLITE_UINT64_TYPE
-    typedef SQLITE_UINT64_TYPE sqlite_uint64;
-# else  
-    typedef unsigned SQLITE_INT64_TYPE sqlite_uint64;
-# endif
-#elif defined(_MSC_VER) || defined(__BORLANDC__)
-  typedef __int64 sqlite_int64;
-  typedef unsigned __int64 sqlite_uint64;
-#else
-  typedef long long int sqlite_int64;
-  typedef unsigned long long int sqlite_uint64;
-#endif
-typedef sqlite_int64 tdsqlite3_int64;
-typedef sqlite_uint64 tdsqlite3_uint64;
-
-/*
-** If compiling for a processor that lacks floating point support,
-** substitute integer for floating-point.
-*/
-#ifdef SQLITE_OMIT_FLOATING_POINT
-# define double tdsqlite3_int64
-#endif
-
-/*
-** CAPI3REF: Closing A Database Connection
-** DESTRUCTOR: tdsqlite3
-**
-** ^The tdsqlite3_close() and tdsqlite3_close_v2() routines are destructors
-** for the [tdsqlite3] object.
-** ^Calls to tdsqlite3_close() and tdsqlite3_close_v2() return [SQLITE_OK] if
-** the [tdsqlite3] object is successfully destroyed and all associated
-** resources are deallocated.
-**
-** ^If the database connection is associated with unfinalized prepared
-** statements or unfinished tdsqlite3_backup objects then tdsqlite3_close()
-** will leave the database connection open and return [SQLITE_BUSY].
-** ^If tdsqlite3_close_v2() is called with unfinalized prepared statements
-** and/or unfinished tdsqlite3_backups, then the database connection becomes
-** an unusable "zombie" which will automatically be deallocated when the
-** last prepared statement is finalized or the last tdsqlite3_backup is
-** finished.  The tdsqlite3_close_v2() interface is intended for use with
-** host languages that are garbage collected, and where the order in which
-** destructors are called is arbitrary.
-**
-** Applications should [tdsqlite3_finalize | finalize] all [prepared statements],
-** [tdsqlite3_blob_close | close] all [BLOB handles], and 
-** [tdsqlite3_backup_finish | finish] all [tdsqlite3_backup] objects associated
-** with the [tdsqlite3] object prior to attempting to close the object.  ^If
-** tdsqlite3_close_v2() is called on a [database connection] that still has
-** outstanding [prepared statements], [BLOB handles], and/or
-** [tdsqlite3_backup] objects then it returns [SQLITE_OK] and the deallocation
-** of resources is deferred until all [prepared statements], [BLOB handles],
-** and [tdsqlite3_backup] objects are also destroyed.
-**
-** ^If an [tdsqlite3] object is destroyed while a transaction is open,
-** the transaction is automatically rolled back.
-**
-** The C parameter to [tdsqlite3_close(C)] and [tdsqlite3_close_v2(C)]
-** must be either a NULL
-** pointer or an [tdsqlite3] object pointer obtained
-** from [tdsqlite3_open()], [tdsqlite3_open16()], or
-** [tdsqlite3_open_v2()], and not previously closed.
-** ^Calling tdsqlite3_close() or tdsqlite3_close_v2() with a NULL pointer
-** argument is a harmless no-op.
-*/
-SQLITE_API int tdsqlite3_close(tdsqlite3*);
-SQLITE_API int tdsqlite3_close_v2(tdsqlite3*);
-
-/*
-** The type for a callback function.
-** This is legacy and deprecated.  It is included for historical
-** compatibility and is not documented.
-*/
-typedef int (*tdsqlite3_callback)(void*,int,char**, char**);
-
-/*
-** CAPI3REF: One-Step Query Execution Interface
-** METHOD: tdsqlite3
-**
-** The tdsqlite3_exec() interface is a convenience wrapper around
-** [tdsqlite3_prepare_v2()], [tdsqlite3_step()], and [tdsqlite3_finalize()],
-** that allows an application to run multiple statements of SQL
-** without having to use a lot of C code. 
-**
-** ^The tdsqlite3_exec() interface runs zero or more UTF-8 encoded,
-** semicolon-separate SQL statements passed into its 2nd argument,
-** in the context of the [database connection] passed in as its 1st
-** argument.  ^If the callback function of the 3rd argument to
-** tdsqlite3_exec() is not NULL, then it is invoked for each result row
-** coming out of the evaluated SQL statements.  ^The 4th argument to
-** tdsqlite3_exec() is relayed through to the 1st argument of each
-** callback invocation.  ^If the callback pointer to tdsqlite3_exec()
-** is NULL, then no callback is ever invoked and result rows are
-** ignored.
-**
-** ^If an error occurs while evaluating the SQL statements passed into
-** tdsqlite3_exec(), then execution of the current statement stops and
-** subsequent statements are skipped.  ^If the 5th parameter to tdsqlite3_exec()
-** is not NULL then any error message is written into memory obtained
-** from [tdsqlite3_malloc()] and passed back through the 5th parameter.
-** To avoid memory leaks, the application should invoke [tdsqlite3_free()]
-** on error message strings returned through the 5th parameter of
-** tdsqlite3_exec() after the error message string is no longer needed.
-** ^If the 5th parameter to tdsqlite3_exec() is not NULL and no errors
-** occur, then tdsqlite3_exec() sets the pointer in its 5th parameter to
-** NULL before returning.
-**
-** ^If an tdsqlite3_exec() callback returns non-zero, the tdsqlite3_exec()
-** routine returns SQLITE_ABORT without invoking the callback again and
-** without running any subsequent SQL statements.
-**
-** ^The 2nd argument to the tdsqlite3_exec() callback function is the
-** number of columns in the result.  ^The 3rd argument to the tdsqlite3_exec()
-** callback is an array of pointers to strings obtained as if from
-** [tdsqlite3_column_text()], one for each column.  ^If an element of a
-** result row is NULL then the corresponding string pointer for the
-** tdsqlite3_exec() callback is a NULL pointer.  ^The 4th argument to the
-** tdsqlite3_exec() callback is an array of pointers to strings where each
-** entry represents the name of corresponding result column as obtained
-** from [tdsqlite3_column_name()].
-**
-** ^If the 2nd parameter to tdsqlite3_exec() is a NULL pointer, a pointer
-** to an empty string, or a pointer that contains only whitespace and/or 
-** SQL comments, then no SQL statements are evaluated and the database
-** is not changed.
-**
-** Restrictions:
-**
-** <ul>
-** <li> The application must ensure that the 1st parameter to tdsqlite3_exec()
-**      is a valid and open [database connection].
-** <li> The application must not close the [database connection] specified by
-**      the 1st parameter to tdsqlite3_exec() while tdsqlite3_exec() is running.
-** <li> The application must not modify the SQL statement text passed into
-**      the 2nd parameter of tdsqlite3_exec() while tdsqlite3_exec() is running.
-** </ul>
-*/
-SQLITE_API int tdsqlite3_exec(
-  tdsqlite3*,                                  /* An open database */
-  const char *sql,                           /* SQL to be evaluated */
-  int (*callback)(void*,int,char**,char**),  /* Callback function */
-  void *,                                    /* 1st argument to callback */
-  char **errmsg                              /* Error msg written here */
-);
-
-/*
-** CAPI3REF: Result Codes
-** KEYWORDS: {result code definitions}
-**
-** Many SQLite functions return an integer result code from the set shown
-** here in order to indicate success or failure.
-**
-** New error codes may be added in future versions of SQLite.
-**
-** See also: [extended result code definitions]
-*/
-#define SQLITE_OK           0   /* Successful result */
-/* beginning-of-error-codes */
-#define SQLITE_ERROR        1   /* Generic error */
-#define SQLITE_INTERNAL     2   /* Internal logic error in SQLite */
-#define SQLITE_PERM         3   /* Access permission denied */
-#define SQLITE_ABORT        4   /* Callback routine requested an abort */
-#define SQLITE_BUSY         5   /* The database file is locked */
-#define SQLITE_LOCKED       6   /* A table in the database is locked */
-#define SQLITE_NOMEM        7   /* A malloc() failed */
-#define SQLITE_READONLY     8   /* Attempt to write a readonly database */
-#define SQLITE_INTERRUPT    9   /* Operation terminated by tdsqlite3_interrupt()*/
-#define SQLITE_IOERR       10   /* Some kind of disk I/O error occurred */
-#define SQLITE_CORRUPT     11   /* The database disk image is malformed */
-#define SQLITE_NOTFOUND    12   /* Unknown opcode in tdsqlite3_file_control() */
-#define SQLITE_FULL        13   /* Insertion failed because database is full */
-#define SQLITE_CANTOPEN    14   /* Unable to open the database file */
-#define SQLITE_PROTOCOL    15   /* Database lock protocol error */
-#define SQLITE_EMPTY       16   /* Internal use only */
-#define SQLITE_SCHEMA      17   /* The database schema changed */
-#define SQLITE_TOOBIG      18   /* String or BLOB exceeds size limit */
-#define SQLITE_CONSTRAINT  19   /* Abort due to constraint violation */
-#define SQLITE_MISMATCH    20   /* Data type mismatch */
-#define SQLITE_MISUSE      21   /* Library used incorrectly */
-#define SQLITE_NOLFS       22   /* Uses OS features not supported on host */
-#define SQLITE_AUTH        23   /* Authorization denied */
-#define SQLITE_FORMAT      24   /* Not used */
-#define SQLITE_RANGE       25   /* 2nd parameter to tdsqlite3_bind out of range */
-#define SQLITE_NOTADB      26   /* File opened that is not a database file */
-#define SQLITE_NOTICE      27   /* Notifications from tdsqlite3_log() */
-#define SQLITE_WARNING     28   /* Warnings from tdsqlite3_log() */
-#define SQLITE_ROW         100  /* tdsqlite3_step() has another row ready */
-#define SQLITE_DONE        101  /* tdsqlite3_step() has finished executing */
-/* end-of-error-codes */
-
-/*
-** CAPI3REF: Extended Result Codes
-** KEYWORDS: {extended result code definitions}
-**
-** In its default configuration, SQLite API routines return one of 30 integer
-** [result codes].  However, experience has shown that many of
-** these result codes are too coarse-grained.  They do not provide as
-** much information about problems as programmers might like.  In an effort to
-** address this, newer versions of SQLite (version 3.3.8 [dateof:3.3.8]
-** and later) include
-** support for additional result codes that provide more detailed information
-** about errors. These [extended result codes] are enabled or disabled
-** on a per database connection basis using the
-** [tdsqlite3_extended_result_codes()] API.  Or, the extended code for
-** the most recent error can be obtained using
-** [tdsqlite3_extended_errcode()].
-*/
-#define SQLITE_ERROR_MISSING_COLLSEQ   (SQLITE_ERROR | (1<<8))
-#define SQLITE_ERROR_RETRY             (SQLITE_ERROR | (2<<8))
-#define SQLITE_ERROR_SNAPSHOT          (SQLITE_ERROR | (3<<8))
-#define SQLITE_IOERR_READ              (SQLITE_IOERR | (1<<8))
-#define SQLITE_IOERR_SHORT_READ        (SQLITE_IOERR | (2<<8))
-#define SQLITE_IOERR_WRITE             (SQLITE_IOERR | (3<<8))
-#define SQLITE_IOERR_FSYNC             (SQLITE_IOERR | (4<<8))
-#define SQLITE_IOERR_DIR_FSYNC         (SQLITE_IOERR | (5<<8))
-#define SQLITE_IOERR_TRUNCATE          (SQLITE_IOERR | (6<<8))
-#define SQLITE_IOERR_FSTAT             (SQLITE_IOERR | (7<<8))
-#define SQLITE_IOERR_UNLOCK            (SQLITE_IOERR | (8<<8))
-#define SQLITE_IOERR_RDLOCK            (SQLITE_IOERR | (9<<8))
-#define SQLITE_IOERR_DELETE            (SQLITE_IOERR | (10<<8))
-#define SQLITE_IOERR_BLOCKED           (SQLITE_IOERR | (11<<8))
-#define SQLITE_IOERR_NOMEM             (SQLITE_IOERR | (12<<8))
-#define SQLITE_IOERR_ACCESS            (SQLITE_IOERR | (13<<8))
-#define SQLITE_IOERR_CHECKRESERVEDLOCK (SQLITE_IOERR | (14<<8))
-#define SQLITE_IOERR_LOCK              (SQLITE_IOERR | (15<<8))
-#define SQLITE_IOERR_CLOSE             (SQLITE_IOERR | (16<<8))
-#define SQLITE_IOERR_DIR_CLOSE         (SQLITE_IOERR | (17<<8))
-#define SQLITE_IOERR_SHMOPEN           (SQLITE_IOERR | (18<<8))
-#define SQLITE_IOERR_SHMSIZE           (SQLITE_IOERR | (19<<8))
-#define SQLITE_IOERR_SHMLOCK           (SQLITE_IOERR | (20<<8))
-#define SQLITE_IOERR_SHMMAP            (SQLITE_IOERR | (21<<8))
-#define SQLITE_IOERR_SEEK              (SQLITE_IOERR | (22<<8))
-#define SQLITE_IOERR_DELETE_NOENT      (SQLITE_IOERR | (23<<8))
-#define SQLITE_IOERR_MMAP              (SQLITE_IOERR | (24<<8))
-#define SQLITE_IOERR_GETTEMPPATH       (SQLITE_IOERR | (25<<8))
-#define SQLITE_IOERR_CONVPATH          (SQLITE_IOERR | (26<<8))
-#define SQLITE_IOERR_VNODE             (SQLITE_IOERR | (27<<8))
-#define SQLITE_IOERR_AUTH              (SQLITE_IOERR | (28<<8))
-#define SQLITE_IOERR_BEGIN_ATOMIC      (SQLITE_IOERR | (29<<8))
-#define SQLITE_IOERR_COMMIT_ATOMIC     (SQLITE_IOERR | (30<<8))
-#define SQLITE_IOERR_ROLLBACK_ATOMIC   (SQLITE_IOERR | (31<<8))
-#define SQLITE_LOCKED_SHAREDCACHE      (SQLITE_LOCKED |  (1<<8))
-#define SQLITE_LOCKED_VTAB             (SQLITE_LOCKED |  (2<<8))
-#define SQLITE_BUSY_RECOVERY           (SQLITE_BUSY   |  (1<<8))
-#define SQLITE_BUSY_SNAPSHOT           (SQLITE_BUSY   |  (2<<8))
-#define SQLITE_CANTOPEN_NOTEMPDIR      (SQLITE_CANTOPEN | (1<<8))
-#define SQLITE_CANTOPEN_ISDIR          (SQLITE_CANTOPEN | (2<<8))
-#define SQLITE_CANTOPEN_FULLPATH       (SQLITE_CANTOPEN | (3<<8))
-#define SQLITE_CANTOPEN_CONVPATH       (SQLITE_CANTOPEN | (4<<8))
-#define SQLITE_CANTOPEN_DIRTYWAL       (SQLITE_CANTOPEN | (5<<8)) /* Not Used */
-#define SQLITE_CANTOPEN_SYMLINK        (SQLITE_CANTOPEN | (6<<8))
-#define SQLITE_CORRUPT_VTAB            (SQLITE_CORRUPT | (1<<8))
-#define SQLITE_CORRUPT_SEQUENCE        (SQLITE_CORRUPT | (2<<8))
-#define SQLITE_READONLY_RECOVERY       (SQLITE_READONLY | (1<<8))
-#define SQLITE_READONLY_CANTLOCK       (SQLITE_READONLY | (2<<8))
-#define SQLITE_READONLY_ROLLBACK       (SQLITE_READONLY | (3<<8))
-#define SQLITE_READONLY_DBMOVED        (SQLITE_READONLY | (4<<8))
-#define SQLITE_READONLY_CANTINIT       (SQLITE_READONLY | (5<<8))
-#define SQLITE_READONLY_DIRECTORY      (SQLITE_READONLY | (6<<8))
-#define SQLITE_ABORT_ROLLBACK          (SQLITE_ABORT | (2<<8))
-#define SQLITE_CONSTRAINT_CHECK        (SQLITE_CONSTRAINT | (1<<8))
-#define SQLITE_CONSTRAINT_COMMITHOOK   (SQLITE_CONSTRAINT | (2<<8))
-#define SQLITE_CONSTRAINT_FOREIGNKEY   (SQLITE_CONSTRAINT | (3<<8))
-#define SQLITE_CONSTRAINT_FUNCTION     (SQLITE_CONSTRAINT | (4<<8))
-#define SQLITE_CONSTRAINT_NOTNULL      (SQLITE_CONSTRAINT | (5<<8))
-#define SQLITE_CONSTRAINT_PRIMARYKEY   (SQLITE_CONSTRAINT | (6<<8))
-#define SQLITE_CONSTRAINT_TRIGGER      (SQLITE_CONSTRAINT | (7<<8))
-#define SQLITE_CONSTRAINT_UNIQUE       (SQLITE_CONSTRAINT | (8<<8))
-#define SQLITE_CONSTRAINT_VTAB         (SQLITE_CONSTRAINT | (9<<8))
-#define SQLITE_CONSTRAINT_ROWID        (SQLITE_CONSTRAINT |(10<<8))
-#define SQLITE_CONSTRAINT_PINNED       (SQLITE_CONSTRAINT |(11<<8))
-#define SQLITE_NOTICE_RECOVER_WAL      (SQLITE_NOTICE | (1<<8))
-#define SQLITE_NOTICE_RECOVER_ROLLBACK (SQLITE_NOTICE | (2<<8))
-#define SQLITE_WARNING_AUTOINDEX       (SQLITE_WARNING | (1<<8))
-#define SQLITE_AUTH_USER               (SQLITE_AUTH | (1<<8))
-#define SQLITE_OK_LOAD_PERMANENTLY     (SQLITE_OK | (1<<8))
-#define SQLITE_OK_SYMLINK              (SQLITE_OK | (2<<8))
-
-/*
-** CAPI3REF: Flags For File Open Operations
-**
-** These bit values are intended for use in the
-** 3rd parameter to the [tdsqlite3_open_v2()] interface and
-** in the 4th parameter to the [tdsqlite3_vfs.xOpen] method.
-*/
-#define SQLITE_OPEN_READONLY         0x00000001  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_READWRITE        0x00000002  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_CREATE           0x00000004  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_DELETEONCLOSE    0x00000008  /* VFS only */
-#define SQLITE_OPEN_EXCLUSIVE        0x00000010  /* VFS only */
-#define SQLITE_OPEN_AUTOPROXY        0x00000020  /* VFS only */
-#define SQLITE_OPEN_URI              0x00000040  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_MEMORY           0x00000080  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_MAIN_DB          0x00000100  /* VFS only */
-#define SQLITE_OPEN_TEMP_DB          0x00000200  /* VFS only */
-#define SQLITE_OPEN_TRANSIENT_DB     0x00000400  /* VFS only */
-#define SQLITE_OPEN_MAIN_JOURNAL     0x00000800  /* VFS only */
-#define SQLITE_OPEN_TEMP_JOURNAL     0x00001000  /* VFS only */
-#define SQLITE_OPEN_SUBJOURNAL       0x00002000  /* VFS only */
-#define SQLITE_OPEN_MASTER_JOURNAL   0x00004000  /* VFS only */
-#define SQLITE_OPEN_NOMUTEX          0x00008000  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_FULLMUTEX        0x00010000  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_SHAREDCACHE      0x00020000  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_PRIVATECACHE     0x00040000  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_WAL              0x00080000  /* VFS only */
-#define SQLITE_OPEN_NOFOLLOW         0x01000000  /* Ok for tdsqlite3_open_v2() */
-
-/* Reserved:                         0x00F00000 */
-
-/*
-** CAPI3REF: Device Characteristics
-**
-** The xDeviceCharacteristics method of the [tdsqlite3_io_methods]
-** object returns an integer which is a vector of these
-** bit values expressing I/O characteristics of the mass storage
-** device that holds the file that the [tdsqlite3_io_methods]
-** refers to.
-**
-** The SQLITE_IOCAP_ATOMIC property means that all writes of
-** any size are atomic.  The SQLITE_IOCAP_ATOMICnnn values
-** mean that writes of blocks that are nnn bytes in size and
-** are aligned to an address which is an integer multiple of
-** nnn are atomic.  The SQLITE_IOCAP_SAFE_APPEND value means
-** that when data is appended to a file, the data is appended
-** first then the size of the file is extended, never the other
-** way around.  The SQLITE_IOCAP_SEQUENTIAL property means that
-** information is written to disk in the same order as calls
-** to xWrite().  The SQLITE_IOCAP_POWERSAFE_OVERWRITE property means that
-** after reboot following a crash or power loss, the only bytes in a
-** file that were written at the application level might have changed
-** and that adjacent bytes, even bytes within the same sector are
-** guaranteed to be unchanged.  The SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN
-** flag indicates that a file cannot be deleted when open.  The
-** SQLITE_IOCAP_IMMUTABLE flag indicates that the file is on
-** read-only media and cannot be changed even by processes with
-** elevated privileges.
-**
-** The SQLITE_IOCAP_BATCH_ATOMIC property means that the underlying
-** filesystem supports doing multiple write operations atomically when those
-** write operations are bracketed by [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE] and
-** [SQLITE_FCNTL_COMMIT_ATOMIC_WRITE].
-*/
-#define SQLITE_IOCAP_ATOMIC                 0x00000001
-#define SQLITE_IOCAP_ATOMIC512              0x00000002
-#define SQLITE_IOCAP_ATOMIC1K               0x00000004
-#define SQLITE_IOCAP_ATOMIC2K               0x00000008
-#define SQLITE_IOCAP_ATOMIC4K               0x00000010
-#define SQLITE_IOCAP_ATOMIC8K               0x00000020
-#define SQLITE_IOCAP_ATOMIC16K              0x00000040
-#define SQLITE_IOCAP_ATOMIC32K              0x00000080
-#define SQLITE_IOCAP_ATOMIC64K              0x00000100
-#define SQLITE_IOCAP_SAFE_APPEND            0x00000200
-#define SQLITE_IOCAP_SEQUENTIAL             0x00000400
-#define SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN  0x00000800
-#define SQLITE_IOCAP_POWERSAFE_OVERWRITE    0x00001000
-#define SQLITE_IOCAP_IMMUTABLE              0x00002000
-#define SQLITE_IOCAP_BATCH_ATOMIC           0x00004000
-
-/*
-** CAPI3REF: File Locking Levels
-**
-** SQLite uses one of these integer values as the second
-** argument to calls it makes to the xLock() and xUnlock() methods
-** of an [tdsqlite3_io_methods] object.
-*/
-#define SQLITE_LOCK_NONE          0
-#define SQLITE_LOCK_SHARED        1
-#define SQLITE_LOCK_RESERVED      2
-#define SQLITE_LOCK_PENDING       3
-#define SQLITE_LOCK_EXCLUSIVE     4
-
-/*
-** CAPI3REF: Synchronization Type Flags
-**
-** When SQLite invokes the xSync() method of an
-** [tdsqlite3_io_methods] object it uses a combination of
-** these integer values as the second argument.
-**
-** When the SQLITE_SYNC_DATAONLY flag is used, it means that the
-** sync operation only needs to flush data to mass storage.  Inode
-** information need not be flushed. If the lower four bits of the flag
-** equal SQLITE_SYNC_NORMAL, that means to use normal fsync() semantics.
-** If the lower four bits equal SQLITE_SYNC_FULL, that means
-** to use Mac OS X style fullsync instead of fsync().
-**
-** Do not confuse the SQLITE_SYNC_NORMAL and SQLITE_SYNC_FULL flags
-** with the [PRAGMA synchronous]=NORMAL and [PRAGMA synchronous]=FULL
-** settings.  The [synchronous pragma] determines when calls to the
-** xSync VFS method occur and applies uniformly across all platforms.
-** The SQLITE_SYNC_NORMAL and SQLITE_SYNC_FULL flags determine how
-** energetic or rigorous or forceful the sync operations are and
-** only make a difference on Mac OSX for the default SQLite code.
-** (Third-party VFS implementations might also make the distinction
-** between SQLITE_SYNC_NORMAL and SQLITE_SYNC_FULL, but among the
-** operating systems natively supported by SQLite, only Mac OSX
-** cares about the difference.)
-*/
-#define SQLITE_SYNC_NORMAL        0x00002
-#define SQLITE_SYNC_FULL          0x00003
-#define SQLITE_SYNC_DATAONLY      0x00010
-
-/*
-** CAPI3REF: OS Interface Open File Handle
-**
-** An [tdsqlite3_file] object represents an open file in the 
-** [tdsqlite3_vfs | OS interface layer].  Individual OS interface
-** implementations will
-** want to subclass this object by appending additional fields
-** for their own use.  The pMethods entry is a pointer to an
-** [tdsqlite3_io_methods] object that defines methods for performing
-** I/O operations on the open file.
-*/
-typedef struct tdsqlite3_file tdsqlite3_file;
-struct tdsqlite3_file {
-  const struct tdsqlite3_io_methods *pMethods;  /* Methods for an open file */
-};
-
-/*
-** CAPI3REF: OS Interface File Virtual Methods Object
-**
-** Every file opened by the [tdsqlite3_vfs.xOpen] method populates an
-** [tdsqlite3_file] object (or, more commonly, a subclass of the
-** [tdsqlite3_file] object) with a pointer to an instance of this object.
-** This object defines the methods used to perform various operations
-** against the open file represented by the [tdsqlite3_file] object.
-**
-** If the [tdsqlite3_vfs.xOpen] method sets the tdsqlite3_file.pMethods element 
-** to a non-NULL pointer, then the tdsqlite3_io_methods.xClose method
-** may be invoked even if the [tdsqlite3_vfs.xOpen] reported that it failed.  The
-** only way to prevent a call to xClose following a failed [tdsqlite3_vfs.xOpen]
-** is for the [tdsqlite3_vfs.xOpen] to set the tdsqlite3_file.pMethods element
-** to NULL.
-**
-** The flags argument to xSync may be one of [SQLITE_SYNC_NORMAL] or
-** [SQLITE_SYNC_FULL].  The first choice is the normal fsync().
-** The second choice is a Mac OS X style fullsync.  The [SQLITE_SYNC_DATAONLY]
-** flag may be ORed in to indicate that only the data of the file
-** and not its inode needs to be synced.
-**
-** The integer values to xLock() and xUnlock() are one of
-** <ul>
-** <li> [SQLITE_LOCK_NONE],
-** <li> [SQLITE_LOCK_SHARED],
-** <li> [SQLITE_LOCK_RESERVED],
-** <li> [SQLITE_LOCK_PENDING], or
-** <li> [SQLITE_LOCK_EXCLUSIVE].
-** </ul>
-** xLock() increases the lock. xUnlock() decreases the lock.
-** The xCheckReservedLock() method checks whether any database connection,
-** either in this process or in some other process, is holding a RESERVED,
-** PENDING, or EXCLUSIVE lock on the file.  It returns true
-** if such a lock exists and false otherwise.
-**
-** The xFileControl() method is a generic interface that allows custom
-** VFS implementations to directly control an open file using the
-** [tdsqlite3_file_control()] interface.  The second "op" argument is an
-** integer opcode.  The third argument is a generic pointer intended to
-** point to a structure that may contain arguments or space in which to
-** write return values.  Potential uses for xFileControl() might be
-** functions to enable blocking locks with timeouts, to change the
-** locking strategy (for example to use dot-file locks), to inquire
-** about the status of a lock, or to break stale locks.  The SQLite
-** core reserves all opcodes less than 100 for its own use.
-** A [file control opcodes | list of opcodes] less than 100 is available.
-** Applications that define a custom xFileControl method should use opcodes
-** greater than 100 to avoid conflicts.  VFS implementations should
-** return [SQLITE_NOTFOUND] for file control opcodes that they do not
-** recognize.
-**
-** The xSectorSize() method returns the sector size of the
-** device that underlies the file.  The sector size is the
-** minimum write that can be performed without disturbing
-** other bytes in the file.  The xDeviceCharacteristics()
-** method returns a bit vector describing behaviors of the
-** underlying device:
-**
-** <ul>
-** <li> [SQLITE_IOCAP_ATOMIC]
-** <li> [SQLITE_IOCAP_ATOMIC512]
-** <li> [SQLITE_IOCAP_ATOMIC1K]
-** <li> [SQLITE_IOCAP_ATOMIC2K]
-** <li> [SQLITE_IOCAP_ATOMIC4K]
-** <li> [SQLITE_IOCAP_ATOMIC8K]
-** <li> [SQLITE_IOCAP_ATOMIC16K]
-** <li> [SQLITE_IOCAP_ATOMIC32K]
-** <li> [SQLITE_IOCAP_ATOMIC64K]
-** <li> [SQLITE_IOCAP_SAFE_APPEND]
-** <li> [SQLITE_IOCAP_SEQUENTIAL]
-** <li> [SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN]
-** <li> [SQLITE_IOCAP_POWERSAFE_OVERWRITE]
-** <li> [SQLITE_IOCAP_IMMUTABLE]
-** <li> [SQLITE_IOCAP_BATCH_ATOMIC]
-** </ul>
-**
-** The SQLITE_IOCAP_ATOMIC property means that all writes of
-** any size are atomic.  The SQLITE_IOCAP_ATOMICnnn values
-** mean that writes of blocks that are nnn bytes in size and
-** are aligned to an address which is an integer multiple of
-** nnn are atomic.  The SQLITE_IOCAP_SAFE_APPEND value means
-** that when data is appended to a file, the data is appended
-** first then the size of the file is extended, never the other
-** way around.  The SQLITE_IOCAP_SEQUENTIAL property means that
-** information is written to disk in the same order as calls
-** to xWrite().
-**
-** If xRead() returns SQLITE_IOERR_SHORT_READ it must also fill
-** in the unread portions of the buffer with zeros.  A VFS that
-** fails to zero-fill short reads might seem to work.  However,
-** failure to zero-fill short reads will eventually lead to
-** database corruption.
-*/
-typedef struct tdsqlite3_io_methods tdsqlite3_io_methods;
-struct tdsqlite3_io_methods {
-  int iVersion;
-  int (*xClose)(tdsqlite3_file*);
-  int (*xRead)(tdsqlite3_file*, void*, int iAmt, tdsqlite3_int64 iOfst);
-  int (*xWrite)(tdsqlite3_file*, const void*, int iAmt, tdsqlite3_int64 iOfst);
-  int (*xTruncate)(tdsqlite3_file*, tdsqlite3_int64 size);
-  int (*xSync)(tdsqlite3_file*, int flags);
-  int (*xFileSize)(tdsqlite3_file*, tdsqlite3_int64 *pSize);
-  int (*xLock)(tdsqlite3_file*, int);
-  int (*xUnlock)(tdsqlite3_file*, int);
-  int (*xCheckReservedLock)(tdsqlite3_file*, int *pResOut);
-  int (*xFileControl)(tdsqlite3_file*, int op, void *pArg);
-  int (*xSectorSize)(tdsqlite3_file*);
-  int (*xDeviceCharacteristics)(tdsqlite3_file*);
-  /* Methods above are valid for version 1 */
-  int (*xShmMap)(tdsqlite3_file*, int iPg, int pgsz, int, void volatile**);
-  int (*xShmLock)(tdsqlite3_file*, int offset, int n, int flags);
-  void (*xShmBarrier)(tdsqlite3_file*);
-  int (*xShmUnmap)(tdsqlite3_file*, int deleteFlag);
-  /* Methods above are valid for version 2 */
-  int (*xFetch)(tdsqlite3_file*, tdsqlite3_int64 iOfst, int iAmt, void **pp);
-  int (*xUnfetch)(tdsqlite3_file*, tdsqlite3_int64 iOfst, void *p);
-  /* Methods above are valid for version 3 */
-  /* Additional methods may be added in future releases */
-};
-
-/*
-** CAPI3REF: Standard File Control Opcodes
-** KEYWORDS: {file control opcodes} {file control opcode}
-**
-** These integer constants are opcodes for the xFileControl method
-** of the [tdsqlite3_io_methods] object and for the [tdsqlite3_file_control()]
-** interface.
-**
-** <ul>
-** <li>[[SQLITE_FCNTL_LOCKSTATE]]
-** The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging.  This
-** opcode causes the xFileControl method to write the current state of
-** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED],
-** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE])
-** into an integer that the pArg argument points to. This capability
-** is used during testing and is only available when the SQLITE_TEST
-** compile-time option is used.
-**
-** <li>[[SQLITE_FCNTL_SIZE_HINT]]
-** The [SQLITE_FCNTL_SIZE_HINT] opcode is used by SQLite to give the VFS
-** layer a hint of how large the database file will grow to be during the
-** current transaction.  This hint is not guaranteed to be accurate but it
-** is often close.  The underlying VFS might choose to preallocate database
-** file space based on this hint in order to help writes to the database
-** file run faster.
-**
-** <li>[[SQLITE_FCNTL_SIZE_LIMIT]]
-** The [SQLITE_FCNTL_SIZE_LIMIT] opcode is used by in-memory VFS that
-** implements [tdsqlite3_deserialize()] to set an upper bound on the size
-** of the in-memory database.  The argument is a pointer to a [tdsqlite3_int64].
-** If the integer pointed to is negative, then it is filled in with the
-** current limit.  Otherwise the limit is set to the larger of the value
-** of the integer pointed to and the current database size.  The integer
-** pointed to is set to the new limit.
-**
-** <li>[[SQLITE_FCNTL_CHUNK_SIZE]]
-** The [SQLITE_FCNTL_CHUNK_SIZE] opcode is used to request that the VFS
-** extends and truncates the database file in chunks of a size specified
-** by the user. The fourth argument to [tdsqlite3_file_control()] should 
-** point to an integer (type int) containing the new chunk-size to use
-** for the nominated database. Allocating database file space in large
-** chunks (say 1MB at a time), may reduce file-system fragmentation and
-** improve performance on some systems.
-**
-** <li>[[SQLITE_FCNTL_FILE_POINTER]]
-** The [SQLITE_FCNTL_FILE_POINTER] opcode is used to obtain a pointer
-** to the [tdsqlite3_file] object associated with a particular database
-** connection.  See also [SQLITE_FCNTL_JOURNAL_POINTER].
-**
-** <li>[[SQLITE_FCNTL_JOURNAL_POINTER]]
-** The [SQLITE_FCNTL_JOURNAL_POINTER] opcode is used to obtain a pointer
-** to the [tdsqlite3_file] object associated with the journal file (either
-** the [rollback journal] or the [write-ahead log]) for a particular database
-** connection.  See also [SQLITE_FCNTL_FILE_POINTER].
-**
-** <li>[[SQLITE_FCNTL_SYNC_OMITTED]]
-** No longer in use.
-**
-** <li>[[SQLITE_FCNTL_SYNC]]
-** The [SQLITE_FCNTL_SYNC] opcode is generated internally by SQLite and
-** sent to the VFS immediately before the xSync method is invoked on a
-** database file descriptor. Or, if the xSync method is not invoked 
-** because the user has configured SQLite with 
-** [PRAGMA synchronous | PRAGMA synchronous=OFF] it is invoked in place 
-** of the xSync method. In most cases, the pointer argument passed with
-** this file-control is NULL. However, if the database file is being synced
-** as part of a multi-database commit, the argument points to a nul-terminated
-** string containing the transactions master-journal file name. VFSes that 
-** do not need this signal should silently ignore this opcode. Applications 
-** should not call [tdsqlite3_file_control()] with this opcode as doing so may 
-** disrupt the operation of the specialized VFSes that do require it.  
-**
-** <li>[[SQLITE_FCNTL_COMMIT_PHASETWO]]
-** The [SQLITE_FCNTL_COMMIT_PHASETWO] opcode is generated internally by SQLite
-** and sent to the VFS after a transaction has been committed immediately
-** but before the database is unlocked. VFSes that do not need this signal
-** should silently ignore this opcode. Applications should not call
-** [tdsqlite3_file_control()] with this opcode as doing so may disrupt the 
-** operation of the specialized VFSes that do require it.  
-**
-** <li>[[SQLITE_FCNTL_WIN32_AV_RETRY]]
-** ^The [SQLITE_FCNTL_WIN32_AV_RETRY] opcode is used to configure automatic
-** retry counts and intervals for certain disk I/O operations for the
-** windows [VFS] in order to provide robustness in the presence of
-** anti-virus programs.  By default, the windows VFS will retry file read,
-** file write, and file delete operations up to 10 times, with a delay
-** of 25 milliseconds before the first retry and with the delay increasing
-** by an additional 25 milliseconds with each subsequent retry.  This
-** opcode allows these two values (10 retries and 25 milliseconds of delay)
-** to be adjusted.  The values are changed for all database connections
-** within the same process.  The argument is a pointer to an array of two
-** integers where the first integer is the new retry count and the second
-** integer is the delay.  If either integer is negative, then the setting
-** is not changed but instead the prior value of that setting is written
-** into the array entry, allowing the current retry settings to be
-** interrogated.  The zDbName parameter is ignored.
-**
-** <li>[[SQLITE_FCNTL_PERSIST_WAL]]
-** ^The [SQLITE_FCNTL_PERSIST_WAL] opcode is used to set or query the
-** persistent [WAL | Write Ahead Log] setting.  By default, the auxiliary
-** write ahead log ([WAL file]) and shared memory
-** files used for transaction control
-** are automatically deleted when the latest connection to the database
-** closes.  Setting persistent WAL mode causes those files to persist after
-** close.  Persisting the files is useful when other processes that do not
-** have write permission on the directory containing the database file want
-** to read the database file, as the WAL and shared memory files must exist
-** in order for the database to be readable.  The fourth parameter to
-** [tdsqlite3_file_control()] for this opcode should be a pointer to an integer.
-** That integer is 0 to disable persistent WAL mode or 1 to enable persistent
-** WAL mode.  If the integer is -1, then it is overwritten with the current
-** WAL persistence setting.
-**
-** <li>[[SQLITE_FCNTL_POWERSAFE_OVERWRITE]]
-** ^The [SQLITE_FCNTL_POWERSAFE_OVERWRITE] opcode is used to set or query the
-** persistent "powersafe-overwrite" or "PSOW" setting.  The PSOW setting
-** determines the [SQLITE_IOCAP_POWERSAFE_OVERWRITE] bit of the
-** xDeviceCharacteristics methods. The fourth parameter to
-** [tdsqlite3_file_control()] for this opcode should be a pointer to an integer.
-** That integer is 0 to disable zero-damage mode or 1 to enable zero-damage
-** mode.  If the integer is -1, then it is overwritten with the current
-** zero-damage mode setting.
-**
-** <li>[[SQLITE_FCNTL_OVERWRITE]]
-** ^The [SQLITE_FCNTL_OVERWRITE] opcode is invoked by SQLite after opening
-** a write transaction to indicate that, unless it is rolled back for some
-** reason, the entire database file will be overwritten by the current 
-** transaction. This is used by VACUUM operations.
-**
-** <li>[[SQLITE_FCNTL_VFSNAME]]
-** ^The [SQLITE_FCNTL_VFSNAME] opcode can be used to obtain the names of
-** all [VFSes] in the VFS stack.  The names are of all VFS shims and the
-** final bottom-level VFS are written into memory obtained from 
-** [tdsqlite3_malloc()] and the result is stored in the char* variable
-** that the fourth parameter of [tdsqlite3_file_control()] points to.
-** The caller is responsible for freeing the memory when done.  As with
-** all file-control actions, there is no guarantee that this will actually
-** do anything.  Callers should initialize the char* variable to a NULL
-** pointer in case this file-control is not implemented.  This file-control
-** is intended for diagnostic use only.
-**
-** <li>[[SQLITE_FCNTL_VFS_POINTER]]
-** ^The [SQLITE_FCNTL_VFS_POINTER] opcode finds a pointer to the top-level
-** [VFSes] currently in use.  ^(The argument X in
-** tdsqlite3_file_control(db,SQLITE_FCNTL_VFS_POINTER,X) must be
-** of type "[tdsqlite3_vfs] **".  This opcodes will set *X
-** to a pointer to the top-level VFS.)^
-** ^When there are multiple VFS shims in the stack, this opcode finds the
-** upper-most shim only.
-**
-** <li>[[SQLITE_FCNTL_PRAGMA]]
-** ^Whenever a [PRAGMA] statement is parsed, an [SQLITE_FCNTL_PRAGMA] 
-** file control is sent to the open [tdsqlite3_file] object corresponding
-** to the database file to which the pragma statement refers. ^The argument
-** to the [SQLITE_FCNTL_PRAGMA] file control is an array of
-** pointers to strings (char**) in which the second element of the array
-** is the name of the pragma and the third element is the argument to the
-** pragma or NULL if the pragma has no argument.  ^The handler for an
-** [SQLITE_FCNTL_PRAGMA] file control can optionally make the first element
-** of the char** argument point to a string obtained from [tdsqlite3_mprintf()]
-** or the equivalent and that string will become the result of the pragma or
-** the error message if the pragma fails. ^If the
-** [SQLITE_FCNTL_PRAGMA] file control returns [SQLITE_NOTFOUND], then normal 
-** [PRAGMA] processing continues.  ^If the [SQLITE_FCNTL_PRAGMA]
-** file control returns [SQLITE_OK], then the parser assumes that the
-** VFS has handled the PRAGMA itself and the parser generates a no-op
-** prepared statement if result string is NULL, or that returns a copy
-** of the result string if the string is non-NULL.
-** ^If the [SQLITE_FCNTL_PRAGMA] file control returns
-** any result code other than [SQLITE_OK] or [SQLITE_NOTFOUND], that means
-** that the VFS encountered an error while handling the [PRAGMA] and the
-** compilation of the PRAGMA fails with an error.  ^The [SQLITE_FCNTL_PRAGMA]
-** file control occurs at the beginning of pragma statement analysis and so
-** it is able to override built-in [PRAGMA] statements.
-**
-** <li>[[SQLITE_FCNTL_BUSYHANDLER]]
-** ^The [SQLITE_FCNTL_BUSYHANDLER]
-** file-control may be invoked by SQLite on the database file handle
-** shortly after it is opened in order to provide a custom VFS with access
-** to the connection's busy-handler callback. The argument is of type (void**)
-** - an array of two (void *) values. The first (void *) actually points
-** to a function of type (int (*)(void *)). In order to invoke the connection's
-** busy-handler, this function should be invoked with the second (void *) in
-** the array as the only argument. If it returns non-zero, then the operation
-** should be retried. If it returns zero, the custom VFS should abandon the
-** current operation.
-**
-** <li>[[SQLITE_FCNTL_TEMPFILENAME]]
-** ^Applications can invoke the [SQLITE_FCNTL_TEMPFILENAME] file-control
-** to have SQLite generate a
-** temporary filename using the same algorithm that is followed to generate
-** temporary filenames for TEMP tables and other internal uses.  The
-** argument should be a char** which will be filled with the filename
-** written into memory obtained from [tdsqlite3_malloc()].  The caller should
-** invoke [tdsqlite3_free()] on the result to avoid a memory leak.
-**
-** <li>[[SQLITE_FCNTL_MMAP_SIZE]]
-** The [SQLITE_FCNTL_MMAP_SIZE] file control is used to query or set the
-** maximum number of bytes that will be used for memory-mapped I/O.
-** The argument is a pointer to a value of type tdsqlite3_int64 that
-** is an advisory maximum number of bytes in the file to memory map.  The
-** pointer is overwritten with the old value.  The limit is not changed if
-** the value originally pointed to is negative, and so the current limit 
-** can be queried by passing in a pointer to a negative number.  This
-** file-control is used internally to implement [PRAGMA mmap_size].
-**
-** <li>[[SQLITE_FCNTL_TRACE]]
-** The [SQLITE_FCNTL_TRACE] file control provides advisory information
-** to the VFS about what the higher layers of the SQLite stack are doing.
-** This file control is used by some VFS activity tracing [shims].
-** The argument is a zero-terminated string.  Higher layers in the
-** SQLite stack may generate instances of this file control if
-** the [SQLITE_USE_FCNTL_TRACE] compile-time option is enabled.
-**
-** <li>[[SQLITE_FCNTL_HAS_MOVED]]
-** The [SQLITE_FCNTL_HAS_MOVED] file control interprets its argument as a
-** pointer to an integer and it writes a boolean into that integer depending
-** on whether or not the file has been renamed, moved, or deleted since it
-** was first opened.
-**
-** <li>[[SQLITE_FCNTL_WIN32_GET_HANDLE]]
-** The [SQLITE_FCNTL_WIN32_GET_HANDLE] opcode can be used to obtain the
-** underlying native file handle associated with a file handle.  This file
-** control interprets its argument as a pointer to a native file handle and
-** writes the resulting value there.
-**
-** <li>[[SQLITE_FCNTL_WIN32_SET_HANDLE]]
-** The [SQLITE_FCNTL_WIN32_SET_HANDLE] opcode is used for debugging.  This
-** opcode causes the xFileControl method to swap the file handle with the one
-** pointed to by the pArg argument.  This capability is used during testing
-** and only needs to be supported when SQLITE_TEST is defined.
-**
-** <li>[[SQLITE_FCNTL_WAL_BLOCK]]
-** The [SQLITE_FCNTL_WAL_BLOCK] is a signal to the VFS layer that it might
-** be advantageous to block on the next WAL lock if the lock is not immediately
-** available.  The WAL subsystem issues this signal during rare
-** circumstances in order to fix a problem with priority inversion.
-** Applications should <em>not</em> use this file-control.
-**
-** <li>[[SQLITE_FCNTL_ZIPVFS]]
-** The [SQLITE_FCNTL_ZIPVFS] opcode is implemented by zipvfs only. All other
-** VFS should return SQLITE_NOTFOUND for this opcode.
-**
-** <li>[[SQLITE_FCNTL_RBU]]
-** The [SQLITE_FCNTL_RBU] opcode is implemented by the special VFS used by
-** the RBU extension only.  All other VFS should return SQLITE_NOTFOUND for
-** this opcode.  
-**
-** <li>[[SQLITE_FCNTL_BEGIN_ATOMIC_WRITE]]
-** If the [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE] opcode returns SQLITE_OK, then
-** the file descriptor is placed in "batch write mode", which
-** means all subsequent write operations will be deferred and done
-** atomically at the next [SQLITE_FCNTL_COMMIT_ATOMIC_WRITE].  Systems
-** that do not support batch atomic writes will return SQLITE_NOTFOUND.
-** ^Following a successful SQLITE_FCNTL_BEGIN_ATOMIC_WRITE and prior to
-** the closing [SQLITE_FCNTL_COMMIT_ATOMIC_WRITE] or
-** [SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE], SQLite will make
-** no VFS interface calls on the same [tdsqlite3_file] file descriptor
-** except for calls to the xWrite method and the xFileControl method
-** with [SQLITE_FCNTL_SIZE_HINT].
-**
-** <li>[[SQLITE_FCNTL_COMMIT_ATOMIC_WRITE]]
-** The [SQLITE_FCNTL_COMMIT_ATOMIC_WRITE] opcode causes all write
-** operations since the previous successful call to 
-** [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE] to be performed atomically.
-** This file control returns [SQLITE_OK] if and only if the writes were
-** all performed successfully and have been committed to persistent storage.
-** ^Regardless of whether or not it is successful, this file control takes
-** the file descriptor out of batch write mode so that all subsequent
-** write operations are independent.
-** ^SQLite will never invoke SQLITE_FCNTL_COMMIT_ATOMIC_WRITE without
-** a prior successful call to [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE].
-**
-** <li>[[SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE]]
-** The [SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE] opcode causes all write
-** operations since the previous successful call to 
-** [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE] to be rolled back.
-** ^This file control takes the file descriptor out of batch write mode
-** so that all subsequent write operations are independent.
-** ^SQLite will never invoke SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE without
-** a prior successful call to [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE].
-**
-** <li>[[SQLITE_FCNTL_LOCK_TIMEOUT]]
-** The [SQLITE_FCNTL_LOCK_TIMEOUT] opcode causes attempts to obtain
-** a file lock using the xLock or xShmLock methods of the VFS to wait
-** for up to M milliseconds before failing, where M is the single 
-** unsigned integer parameter.
-**
-** <li>[[SQLITE_FCNTL_DATA_VERSION]]
-** The [SQLITE_FCNTL_DATA_VERSION] opcode is used to detect changes to
-** a database file.  The argument is a pointer to a 32-bit unsigned integer.
-** The "data version" for the pager is written into the pointer.  The
-** "data version" changes whenever any change occurs to the corresponding
-** database file, either through SQL statements on the same database
-** connection or through transactions committed by separate database
-** connections possibly in other processes. The [tdsqlite3_total_changes()]
-** interface can be used to find if any database on the connection has changed,
-** but that interface responds to changes on TEMP as well as MAIN and does
-** not provide a mechanism to detect changes to MAIN only.  Also, the
-** [tdsqlite3_total_changes()] interface responds to internal changes only and
-** omits changes made by other database connections.  The
-** [PRAGMA data_version] command provides a mechanism to detect changes to
-** a single attached database that occur due to other database connections,
-** but omits changes implemented by the database connection on which it is
-** called.  This file control is the only mechanism to detect changes that
-** happen either internally or externally and that are associated with
-** a particular attached database.
-**
-** <li>[[SQLITE_FCNTL_CKPT_DONE]]
-** The [SQLITE_FCNTL_CKPT_DONE] opcode is invoked from within a checkpoint
-** in wal mode after the client has finished copying pages from the wal
-** file to the database file, but before the *-shm file is updated to
-** record the fact that the pages have been checkpointed.
-** </ul>
-*/
-#define SQLITE_FCNTL_LOCKSTATE               1
-#define SQLITE_FCNTL_GET_LOCKPROXYFILE       2
-#define SQLITE_FCNTL_SET_LOCKPROXYFILE       3
-#define SQLITE_FCNTL_LAST_ERRNO              4
-#define SQLITE_FCNTL_SIZE_HINT               5
-#define SQLITE_FCNTL_CHUNK_SIZE              6
-#define SQLITE_FCNTL_FILE_POINTER            7
-#define SQLITE_FCNTL_SYNC_OMITTED            8
-#define SQLITE_FCNTL_WIN32_AV_RETRY          9
-#define SQLITE_FCNTL_PERSIST_WAL            10
-#define SQLITE_FCNTL_OVERWRITE              11
-#define SQLITE_FCNTL_VFSNAME                12
-#define SQLITE_FCNTL_POWERSAFE_OVERWRITE    13
-#define SQLITE_FCNTL_PRAGMA                 14
-#define SQLITE_FCNTL_BUSYHANDLER            15
-#define SQLITE_FCNTL_TEMPFILENAME           16
-#define SQLITE_FCNTL_MMAP_SIZE              18
-#define SQLITE_FCNTL_TRACE                  19
-#define SQLITE_FCNTL_HAS_MOVED              20
-#define SQLITE_FCNTL_SYNC                   21
-#define SQLITE_FCNTL_COMMIT_PHASETWO        22
-#define SQLITE_FCNTL_WIN32_SET_HANDLE       23
-#define SQLITE_FCNTL_WAL_BLOCK              24
-#define SQLITE_FCNTL_ZIPVFS                 25
-#define SQLITE_FCNTL_RBU                    26
-#define SQLITE_FCNTL_VFS_POINTER            27
-#define SQLITE_FCNTL_JOURNAL_POINTER        28
-#define SQLITE_FCNTL_WIN32_GET_HANDLE       29
-#define SQLITE_FCNTL_PDB                    30
-#define SQLITE_FCNTL_BEGIN_ATOMIC_WRITE     31
-#define SQLITE_FCNTL_COMMIT_ATOMIC_WRITE    32
-#define SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE  33
-#define SQLITE_FCNTL_LOCK_TIMEOUT           34
-#define SQLITE_FCNTL_DATA_VERSION           35
-#define SQLITE_FCNTL_SIZE_LIMIT             36
-#define SQLITE_FCNTL_CKPT_DONE              37
-
-/* deprecated names */
-#define SQLITE_GET_LOCKPROXYFILE      SQLITE_FCNTL_GET_LOCKPROXYFILE
-#define SQLITE_SET_LOCKPROXYFILE      SQLITE_FCNTL_SET_LOCKPROXYFILE
-#define SQLITE_LAST_ERRNO             SQLITE_FCNTL_LAST_ERRNO
-
-
-/*
-** CAPI3REF: Mutex Handle
-**
-** The mutex module within SQLite defines [tdsqlite3_mutex] to be an
-** abstract type for a mutex object.  The SQLite core never looks
-** at the internal representation of an [tdsqlite3_mutex].  It only
-** deals with pointers to the [tdsqlite3_mutex] object.
-**
-** Mutexes are created using [tdsqlite3_mutex_alloc()].
-*/
-typedef struct tdsqlite3_mutex tdsqlite3_mutex;
-
-/*
-** CAPI3REF: Loadable Extension Thunk
-**
-** A pointer to the opaque tdsqlite3_api_routines structure is passed as
-** the third parameter to entry points of [loadable extensions].  This
-** structure must be typedefed in order to work around compiler warnings
-** on some platforms.
-*/
-typedef struct tdsqlite3_api_routines tdsqlite3_api_routines;
-
-/*
-** CAPI3REF: OS Interface Object
-**
-** An instance of the tdsqlite3_vfs object defines the interface between
-** the SQLite core and the underlying operating system.  The "vfs"
-** in the name of the object stands for "virtual file system".  See
-** the [VFS | VFS documentation] for further information.
-**
-** The VFS interface is sometimes extended by adding new methods onto
-** the end.  Each time such an extension occurs, the iVersion field
-** is incremented.  The iVersion value started out as 1 in
-** SQLite [version 3.5.0] on [dateof:3.5.0], then increased to 2
-** with SQLite [version 3.7.0] on [dateof:3.7.0], and then increased
-** to 3 with SQLite [version 3.7.6] on [dateof:3.7.6].  Additional fields
-** may be appended to the tdsqlite3_vfs object and the iVersion value
-** may increase again in future versions of SQLite.
-** Note that due to an oversight, the structure
-** of the tdsqlite3_vfs object changed in the transition from
-** SQLite [version 3.5.9] to [version 3.6.0] on [dateof:3.6.0]
-** and yet the iVersion field was not increased.
-**
-** The szOsFile field is the size of the subclassed [tdsqlite3_file]
-** structure used by this VFS.  mxPathname is the maximum length of
-** a pathname in this VFS.
-**
-** Registered tdsqlite3_vfs objects are kept on a linked list formed by
-** the pNext pointer.  The [tdsqlite3_vfs_register()]
-** and [tdsqlite3_vfs_unregister()] interfaces manage this list
-** in a thread-safe way.  The [tdsqlite3_vfs_find()] interface
-** searches the list.  Neither the application code nor the VFS
-** implementation should use the pNext pointer.
-**
-** The pNext field is the only field in the tdsqlite3_vfs
-** structure that SQLite will ever modify.  SQLite will only access
-** or modify this field while holding a particular static mutex.
-** The application should never modify anything within the tdsqlite3_vfs
-** object once the object has been registered.
-**
-** The zName field holds the name of the VFS module.  The name must
-** be unique across all VFS modules.
-**
-** [[tdsqlite3_vfs.xOpen]]
-** ^SQLite guarantees that the zFilename parameter to xOpen
-** is either a NULL pointer or string obtained
-** from xFullPathname() with an optional suffix added.
-** ^If a suffix is added to the zFilename parameter, it will
-** consist of a single "-" character followed by no more than
-** 11 alphanumeric and/or "-" characters.
-** ^SQLite further guarantees that
-** the string will be valid and unchanged until xClose() is
-** called. Because of the previous sentence,
-** the [tdsqlite3_file] can safely store a pointer to the
-** filename if it needs to remember the filename for some reason.
-** If the zFilename parameter to xOpen is a NULL pointer then xOpen
-** must invent its own temporary name for the file.  ^Whenever the 
-** xFilename parameter is NULL it will also be the case that the
-** flags parameter will include [SQLITE_OPEN_DELETEONCLOSE].
-**
-** The flags argument to xOpen() includes all bits set in
-** the flags argument to [tdsqlite3_open_v2()].  Or if [tdsqlite3_open()]
-** or [tdsqlite3_open16()] is used, then flags includes at least
-** [SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]. 
-** If xOpen() opens a file read-only then it sets *pOutFlags to
-** include [SQLITE_OPEN_READONLY].  Other bits in *pOutFlags may be set.
-**
-** ^(SQLite will also add one of the following flags to the xOpen()
-** call, depending on the object being opened:
-**
-** <ul>
-** <li>  [SQLITE_OPEN_MAIN_DB]
-** <li>  [SQLITE_OPEN_MAIN_JOURNAL]
-** <li>  [SQLITE_OPEN_TEMP_DB]
-** <li>  [SQLITE_OPEN_TEMP_JOURNAL]
-** <li>  [SQLITE_OPEN_TRANSIENT_DB]
-** <li>  [SQLITE_OPEN_SUBJOURNAL]
-** <li>  [SQLITE_OPEN_MASTER_JOURNAL]
-** <li>  [SQLITE_OPEN_WAL]
-** </ul>)^
-**
-** The file I/O implementation can use the object type flags to
-** change the way it deals with files.  For example, an application
-** that does not care about crash recovery or rollback might make
-** the open of a journal file a no-op.  Writes to this journal would
-** also be no-ops, and any attempt to read the journal would return
-** SQLITE_IOERR.  Or the implementation might recognize that a database
-** file will be doing page-aligned sector reads and writes in a random
-** order and set up its I/O subsystem accordingly.
-**
-** SQLite might also add one of the following flags to the xOpen method:
-**
-** <ul>
-** <li> [SQLITE_OPEN_DELETEONCLOSE]
-** <li> [SQLITE_OPEN_EXCLUSIVE]
-** </ul>
-**
-** The [SQLITE_OPEN_DELETEONCLOSE] flag means the file should be
-** deleted when it is closed.  ^The [SQLITE_OPEN_DELETEONCLOSE]
-** will be set for TEMP databases and their journals, transient
-** databases, and subjournals.
-**
-** ^The [SQLITE_OPEN_EXCLUSIVE] flag is always used in conjunction
-** with the [SQLITE_OPEN_CREATE] flag, which are both directly
-** analogous to the O_EXCL and O_CREAT flags of the POSIX open()
-** API.  The SQLITE_OPEN_EXCLUSIVE flag, when paired with the 
-** SQLITE_OPEN_CREATE, is used to indicate that file should always
-** be created, and that it is an error if it already exists.
-** It is <i>not</i> used to indicate the file should be opened 
-** for exclusive access.
-**
-** ^At least szOsFile bytes of memory are allocated by SQLite
-** to hold the [tdsqlite3_file] structure passed as the third
-** argument to xOpen.  The xOpen method does not have to
-** allocate the structure; it should just fill it in.  Note that
-** the xOpen method must set the tdsqlite3_file.pMethods to either
-** a valid [tdsqlite3_io_methods] object or to NULL.  xOpen must do
-** this even if the open fails.  SQLite expects that the tdsqlite3_file.pMethods
-** element will be valid after xOpen returns regardless of the success
-** or failure of the xOpen call.
-**
-** [[tdsqlite3_vfs.xAccess]]
-** ^The flags argument to xAccess() may be [SQLITE_ACCESS_EXISTS]
-** to test for the existence of a file, or [SQLITE_ACCESS_READWRITE] to
-** test whether a file is readable and writable, or [SQLITE_ACCESS_READ]
-** to test whether a file is at least readable.  The SQLITE_ACCESS_READ
-** flag is never actually used and is not implemented in the built-in
-** VFSes of SQLite.  The file is named by the second argument and can be a
-** directory. The xAccess method returns [SQLITE_OK] on success or some
-** non-zero error code if there is an I/O error or if the name of
-** the file given in the second argument is illegal.  If SQLITE_OK
-** is returned, then non-zero or zero is written into *pResOut to indicate
-** whether or not the file is accessible.  
-**
-** ^SQLite will always allocate at least mxPathname+1 bytes for the
-** output buffer xFullPathname.  The exact size of the output buffer
-** is also passed as a parameter to both  methods. If the output buffer
-** is not large enough, [SQLITE_CANTOPEN] should be returned. Since this is
-** handled as a fatal error by SQLite, vfs implementations should endeavor
-** to prevent this by setting mxPathname to a sufficiently large value.
-**
-** The xRandomness(), xSleep(), xCurrentTime(), and xCurrentTimeInt64()
-** interfaces are not strictly a part of the filesystem, but they are
-** included in the VFS structure for completeness.
-** The xRandomness() function attempts to return nBytes bytes
-** of good-quality randomness into zOut.  The return value is
-** the actual number of bytes of randomness obtained.
-** The xSleep() method causes the calling thread to sleep for at
-** least the number of microseconds given.  ^The xCurrentTime()
-** method returns a Julian Day Number for the current date and time as
-** a floating point value.
-** ^The xCurrentTimeInt64() method returns, as an integer, the Julian
-** Day Number multiplied by 86400000 (the number of milliseconds in 
-** a 24-hour day).  
-** ^SQLite will use the xCurrentTimeInt64() method to get the current
-** date and time if that method is available (if iVersion is 2 or 
-** greater and the function pointer is not NULL) and will fall back
-** to xCurrentTime() if xCurrentTimeInt64() is unavailable.
-**
-** ^The xSetSystemCall(), xGetSystemCall(), and xNestSystemCall() interfaces
-** are not used by the SQLite core.  These optional interfaces are provided
-** by some VFSes to facilitate testing of the VFS code. By overriding 
-** system calls with functions under its control, a test program can
-** simulate faults and error conditions that would otherwise be difficult
-** or impossible to induce.  The set of system calls that can be overridden
-** varies from one VFS to another, and from one version of the same VFS to the
-** next.  Applications that use these interfaces must be prepared for any
-** or all of these interfaces to be NULL or for their behavior to change
-** from one release to the next.  Applications must not attempt to access
-** any of these methods if the iVersion of the VFS is less than 3.
-*/
-typedef struct tdsqlite3_vfs tdsqlite3_vfs;
-typedef void (*tdsqlite3_syscall_ptr)(void);
-struct tdsqlite3_vfs {
-  int iVersion;            /* Structure version number (currently 3) */
-  int szOsFile;            /* Size of subclassed tdsqlite3_file */
-  int mxPathname;          /* Maximum file pathname length */
-  tdsqlite3_vfs *pNext;      /* Next registered VFS */
-  const char *zName;       /* Name of this virtual file system */
-  void *pAppData;          /* Pointer to application-specific data */
-  int (*xOpen)(tdsqlite3_vfs*, const char *zName, tdsqlite3_file*,
-               int flags, int *pOutFlags);
-  int (*xDelete)(tdsqlite3_vfs*, const char *zName, int syncDir);
-  int (*xAccess)(tdsqlite3_vfs*, const char *zName, int flags, int *pResOut);
-  int (*xFullPathname)(tdsqlite3_vfs*, const char *zName, int nOut, char *zOut);
-  void *(*xDlOpen)(tdsqlite3_vfs*, const char *zFilename);
-  void (*xDlError)(tdsqlite3_vfs*, int nByte, char *zErrMsg);
-  void (*(*xDlSym)(tdsqlite3_vfs*,void*, const char *zSymbol))(void);
-  void (*xDlClose)(tdsqlite3_vfs*, void*);
-  int (*xRandomness)(tdsqlite3_vfs*, int nByte, char *zOut);
-  int (*xSleep)(tdsqlite3_vfs*, int microseconds);
-  int (*xCurrentTime)(tdsqlite3_vfs*, double*);
-  int (*xGetLastError)(tdsqlite3_vfs*, int, char *);
-  /*
-  ** The methods above are in version 1 of the sqlite_vfs object
-  ** definition.  Those that follow are added in version 2 or later
-  */
-  int (*xCurrentTimeInt64)(tdsqlite3_vfs*, tdsqlite3_int64*);
-  /*
-  ** The methods above are in versions 1 and 2 of the sqlite_vfs object.
-  ** Those below are for version 3 and greater.
-  */
-  int (*xSetSystemCall)(tdsqlite3_vfs*, const char *zName, tdsqlite3_syscall_ptr);
-  tdsqlite3_syscall_ptr (*xGetSystemCall)(tdsqlite3_vfs*, const char *zName);
-  const char *(*xNextSystemCall)(tdsqlite3_vfs*, const char *zName);
-  /*
-  ** The methods above are in versions 1 through 3 of the sqlite_vfs object.
-  ** New fields may be appended in future versions.  The iVersion
-  ** value will increment whenever this happens. 
-  */
-};
-
-/*
-** CAPI3REF: Flags for the xAccess VFS method
-**
-** These integer constants can be used as the third parameter to
-** the xAccess method of an [tdsqlite3_vfs] object.  They determine
-** what kind of permissions the xAccess method is looking for.
-** With SQLITE_ACCESS_EXISTS, the xAccess method
-** simply checks whether the file exists.
-** With SQLITE_ACCESS_READWRITE, the xAccess method
-** checks whether the named directory is both readable and writable
-** (in other words, if files can be added, removed, and renamed within
-** the directory).
-** The SQLITE_ACCESS_READWRITE constant is currently used only by the
-** [temp_store_directory pragma], though this could change in a future
-** release of SQLite.
-** With SQLITE_ACCESS_READ, the xAccess method
-** checks whether the file is readable.  The SQLITE_ACCESS_READ constant is
-** currently unused, though it might be used in a future release of
-** SQLite.
-*/
-#define SQLITE_ACCESS_EXISTS    0
-#define SQLITE_ACCESS_READWRITE 1   /* Used by PRAGMA temp_store_directory */
-#define SQLITE_ACCESS_READ      2   /* Unused */
-
-/*
-** CAPI3REF: Flags for the xShmLock VFS method
-**
-** These integer constants define the various locking operations
-** allowed by the xShmLock method of [tdsqlite3_io_methods].  The
-** following are the only legal combinations of flags to the
-** xShmLock method:
-**
-** <ul>
-** <li>  SQLITE_SHM_LOCK | SQLITE_SHM_SHARED
-** <li>  SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE
-** <li>  SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED
-** <li>  SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE
-** </ul>
-**
-** When unlocking, the same SHARED or EXCLUSIVE flag must be supplied as
-** was given on the corresponding lock.  
-**
-** The xShmLock method can transition between unlocked and SHARED or
-** between unlocked and EXCLUSIVE.  It cannot transition between SHARED
-** and EXCLUSIVE.
-*/
-#define SQLITE_SHM_UNLOCK       1
-#define SQLITE_SHM_LOCK         2
-#define SQLITE_SHM_SHARED       4
-#define SQLITE_SHM_EXCLUSIVE    8
-
-/*
-** CAPI3REF: Maximum xShmLock index
-**
-** The xShmLock method on [tdsqlite3_io_methods] may use values
-** between 0 and this upper bound as its "offset" argument.
-** The SQLite core will never attempt to acquire or release a
-** lock outside of this range
-*/
-#define SQLITE_SHM_NLOCK        8
-
-
-/*
-** CAPI3REF: Initialize The SQLite Library
-**
-** ^The tdsqlite3_initialize() routine initializes the
-** SQLite library.  ^The tdsqlite3_shutdown() routine
-** deallocates any resources that were allocated by tdsqlite3_initialize().
-** These routines are designed to aid in process initialization and
-** shutdown on embedded systems.  Workstation applications using
-** SQLite normally do not need to invoke either of these routines.
-**
-** A call to tdsqlite3_initialize() is an "effective" call if it is
-** the first time tdsqlite3_initialize() is invoked during the lifetime of
-** the process, or if it is the first time tdsqlite3_initialize() is invoked
-** following a call to tdsqlite3_shutdown().  ^(Only an effective call
-** of tdsqlite3_initialize() does any initialization.  All other calls
-** are harmless no-ops.)^
-**
-** A call to tdsqlite3_shutdown() is an "effective" call if it is the first
-** call to tdsqlite3_shutdown() since the last tdsqlite3_initialize().  ^(Only
-** an effective call to tdsqlite3_shutdown() does any deinitialization.
-** All other valid calls to tdsqlite3_shutdown() are harmless no-ops.)^
-**
-** The tdsqlite3_initialize() interface is threadsafe, but tdsqlite3_shutdown()
-** is not.  The tdsqlite3_shutdown() interface must only be called from a
-** single thread.  All open [database connections] must be closed and all
-** other SQLite resources must be deallocated prior to invoking
-** tdsqlite3_shutdown().
-**
-** Among other things, ^tdsqlite3_initialize() will invoke
-** tdsqlite3_os_init().  Similarly, ^tdsqlite3_shutdown()
-** will invoke tdsqlite3_os_end().
-**
-** ^The tdsqlite3_initialize() routine returns [SQLITE_OK] on success.
-** ^If for some reason, tdsqlite3_initialize() is unable to initialize
-** the library (perhaps it is unable to allocate a needed resource such
-** as a mutex) it returns an [error code] other than [SQLITE_OK].
-**
-** ^The tdsqlite3_initialize() routine is called internally by many other
-** SQLite interfaces so that an application usually does not need to
-** invoke tdsqlite3_initialize() directly.  For example, [tdsqlite3_open()]
-** calls tdsqlite3_initialize() so the SQLite library will be automatically
-** initialized when [tdsqlite3_open()] is called if it has not be initialized
-** already.  ^However, if SQLite is compiled with the [SQLITE_OMIT_AUTOINIT]
-** compile-time option, then the automatic calls to tdsqlite3_initialize()
-** are omitted and the application must call tdsqlite3_initialize() directly
-** prior to using any other SQLite interface.  For maximum portability,
-** it is recommended that applications always invoke tdsqlite3_initialize()
-** directly prior to using any other SQLite interface.  Future releases
-** of SQLite may require this.  In other words, the behavior exhibited
-** when SQLite is compiled with [SQLITE_OMIT_AUTOINIT] might become the
-** default behavior in some future release of SQLite.
-**
-** The tdsqlite3_os_init() routine does operating-system specific
-** initialization of the SQLite library.  The tdsqlite3_os_end()
-** routine undoes the effect of tdsqlite3_os_init().  Typical tasks
-** performed by these routines include allocation or deallocation
-** of static resources, initialization of global variables,
-** setting up a default [tdsqlite3_vfs] module, or setting up
-** a default configuration using [tdsqlite3_config()].
-**
-** The application should never invoke either tdsqlite3_os_init()
-** or tdsqlite3_os_end() directly.  The application should only invoke
-** tdsqlite3_initialize() and tdsqlite3_shutdown().  The tdsqlite3_os_init()
-** interface is called automatically by tdsqlite3_initialize() and
-** tdsqlite3_os_end() is called by tdsqlite3_shutdown().  Appropriate
-** implementations for tdsqlite3_os_init() and tdsqlite3_os_end()
-** are built into SQLite when it is compiled for Unix, Windows, or OS/2.
-** When [custom builds | built for other platforms]
-** (using the [SQLITE_OS_OTHER=1] compile-time
-** option) the application must supply a suitable implementation for
-** tdsqlite3_os_init() and tdsqlite3_os_end().  An application-supplied
-** implementation of tdsqlite3_os_init() or tdsqlite3_os_end()
-** must return [SQLITE_OK] on success and some other [error code] upon
-** failure.
-*/
-SQLITE_API int tdsqlite3_initialize(void);
-SQLITE_API int tdsqlite3_shutdown(void);
-SQLITE_API int tdsqlite3_os_init(void);
-SQLITE_API int tdsqlite3_os_end(void);
-
-/*
-** CAPI3REF: Configuring The SQLite Library
-**
-** The tdsqlite3_config() interface is used to make global configuration
-** changes to SQLite in order to tune SQLite to the specific needs of
-** the application.  The default configuration is recommended for most
-** applications and so this routine is usually not necessary.  It is
-** provided to support rare applications with unusual needs.
-**
-** <b>The tdsqlite3_config() interface is not threadsafe. The application
-** must ensure that no other SQLite interfaces are invoked by other
-** threads while tdsqlite3_config() is running.</b>
-**
-** The tdsqlite3_config() interface
-** may only be invoked prior to library initialization using
-** [tdsqlite3_initialize()] or after shutdown by [tdsqlite3_shutdown()].
-** ^If tdsqlite3_config() is called after [tdsqlite3_initialize()] and before
-** [tdsqlite3_shutdown()] then it will return SQLITE_MISUSE.
-** Note, however, that ^tdsqlite3_config() can be called as part of the
-** implementation of an application-defined [tdsqlite3_os_init()].
-**
-** The first argument to tdsqlite3_config() is an integer
-** [configuration option] that determines
-** what property of SQLite is to be configured.  Subsequent arguments
-** vary depending on the [configuration option]
-** in the first argument.
-**
-** ^When a configuration option is set, tdsqlite3_config() returns [SQLITE_OK].
-** ^If the option is unknown or SQLite is unable to set the option
-** then this routine returns a non-zero [error code].
-*/
-SQLITE_API int tdsqlite3_config(int, ...);
-
-/*
-** CAPI3REF: Configure database connections
-** METHOD: tdsqlite3
-**
-** The tdsqlite3_db_config() interface is used to make configuration
-** changes to a [database connection].  The interface is similar to
-** [tdsqlite3_config()] except that the changes apply to a single
-** [database connection] (specified in the first argument).
-**
-** The second argument to tdsqlite3_db_config(D,V,...)  is the
-** [SQLITE_DBCONFIG_LOOKASIDE | configuration verb] - an integer code 
-** that indicates what aspect of the [database connection] is being configured.
-** Subsequent arguments vary depending on the configuration verb.
-**
-** ^Calls to tdsqlite3_db_config() return SQLITE_OK if and only if
-** the call is considered successful.
-*/
-SQLITE_API int tdsqlite3_db_config(tdsqlite3*, int op, ...);
-
-/*
-** CAPI3REF: Memory Allocation Routines
-**
-** An instance of this object defines the interface between SQLite
-** and low-level memory allocation routines.
-**
-** This object is used in only one place in the SQLite interface.
-** A pointer to an instance of this object is the argument to
-** [tdsqlite3_config()] when the configuration option is
-** [SQLITE_CONFIG_MALLOC] or [SQLITE_CONFIG_GETMALLOC].  
-** By creating an instance of this object
-** and passing it to [tdsqlite3_config]([SQLITE_CONFIG_MALLOC])
-** during configuration, an application can specify an alternative
-** memory allocation subsystem for SQLite to use for all of its
-** dynamic memory needs.
-**
-** Note that SQLite comes with several [built-in memory allocators]
-** that are perfectly adequate for the overwhelming majority of applications
-** and that this object is only useful to a tiny minority of applications
-** with specialized memory allocation requirements.  This object is
-** also used during testing of SQLite in order to specify an alternative
-** memory allocator that simulates memory out-of-memory conditions in
-** order to verify that SQLite recovers gracefully from such
-** conditions.
-**
-** The xMalloc, xRealloc, and xFree methods must work like the
-** malloc(), realloc() and free() functions from the standard C library.
-** ^SQLite guarantees that the second argument to
-** xRealloc is always a value returned by a prior call to xRoundup.
-**
-** xSize should return the allocated size of a memory allocation
-** previously obtained from xMalloc or xRealloc.  The allocated size
-** is always at least as big as the requested size but may be larger.
-**
-** The xRoundup method returns what would be the allocated size of
-** a memory allocation given a particular requested size.  Most memory
-** allocators round up memory allocations at least to the next multiple
-** of 8.  Some allocators round up to a larger multiple or to a power of 2.
-** Every memory allocation request coming in through [tdsqlite3_malloc()]
-** or [tdsqlite3_realloc()] first calls xRoundup.  If xRoundup returns 0, 
-** that causes the corresponding memory allocation to fail.
-**
-** The xInit method initializes the memory allocator.  For example,
-** it might allocate any required mutexes or initialize internal data
-** structures.  The xShutdown method is invoked (indirectly) by
-** [tdsqlite3_shutdown()] and should deallocate any resources acquired
-** by xInit.  The pAppData pointer is used as the only parameter to
-** xInit and xShutdown.
-**
-** SQLite holds the [SQLITE_MUTEX_STATIC_MASTER] mutex when it invokes
-** the xInit method, so the xInit method need not be threadsafe.  The
-** xShutdown method is only called from [tdsqlite3_shutdown()] so it does
-** not need to be threadsafe either.  For all other methods, SQLite
-** holds the [SQLITE_MUTEX_STATIC_MEM] mutex as long as the
-** [SQLITE_CONFIG_MEMSTATUS] configuration option is turned on (which
-** it is by default) and so the methods are automatically serialized.
-** However, if [SQLITE_CONFIG_MEMSTATUS] is disabled, then the other
-** methods must be threadsafe or else make their own arrangements for
-** serialization.
-**
-** SQLite will never invoke xInit() more than once without an intervening
-** call to xShutdown().
-*/
-typedef struct tdsqlite3_mem_methods tdsqlite3_mem_methods;
-struct tdsqlite3_mem_methods {
-  void *(*xMalloc)(int);         /* Memory allocation function */
-  void (*xFree)(void*);          /* Free a prior allocation */
-  void *(*xRealloc)(void*,int);  /* Resize an allocation */
-  int (*xSize)(void*);           /* Return the size of an allocation */
-  int (*xRoundup)(int);          /* Round up request size to allocation size */
-  int (*xInit)(void*);           /* Initialize the memory allocator */
-  void (*xShutdown)(void*);      /* Deinitialize the memory allocator */
-  void *pAppData;                /* Argument to xInit() and xShutdown() */
-};
-
-/*
-** CAPI3REF: Configuration Options
-** KEYWORDS: {configuration option}
-**
-** These constants are the available integer configuration options that
-** can be passed as the first argument to the [tdsqlite3_config()] interface.
-**
-** New configuration options may be added in future releases of SQLite.
-** Existing configuration options might be discontinued.  Applications
-** should check the return code from [tdsqlite3_config()] to make sure that
-** the call worked.  The [tdsqlite3_config()] interface will return a
-** non-zero [error code] if a discontinued or unsupported configuration option
-** is invoked.
-**
-** <dl>
-** [[SQLITE_CONFIG_SINGLETHREAD]] <dt>SQLITE_CONFIG_SINGLETHREAD</dt>
-** <dd>There are no arguments to this option.  ^This option sets the
-** [threading mode] to Single-thread.  In other words, it disables
-** all mutexing and puts SQLite into a mode where it can only be used
-** by a single thread.   ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** it is not possible to change the [threading mode] from its default
-** value of Single-thread and so [tdsqlite3_config()] will return 
-** [SQLITE_ERROR] if called with the SQLITE_CONFIG_SINGLETHREAD
-** configuration option.</dd>
-**
-** [[SQLITE_CONFIG_MULTITHREAD]] <dt>SQLITE_CONFIG_MULTITHREAD</dt>
-** <dd>There are no arguments to this option.  ^This option sets the
-** [threading mode] to Multi-thread.  In other words, it disables
-** mutexing on [database connection] and [prepared statement] objects.
-** The application is responsible for serializing access to
-** [database connections] and [prepared statements].  But other mutexes
-** are enabled so that SQLite will be safe to use in a multi-threaded
-** environment as long as no two threads attempt to use the same
-** [database connection] at the same time.  ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** it is not possible to set the Multi-thread [threading mode] and
-** [tdsqlite3_config()] will return [SQLITE_ERROR] if called with the
-** SQLITE_CONFIG_MULTITHREAD configuration option.</dd>
-**
-** [[SQLITE_CONFIG_SERIALIZED]] <dt>SQLITE_CONFIG_SERIALIZED</dt>
-** <dd>There are no arguments to this option.  ^This option sets the
-** [threading mode] to Serialized. In other words, this option enables
-** all mutexes including the recursive
-** mutexes on [database connection] and [prepared statement] objects.
-** In this mode (which is the default when SQLite is compiled with
-** [SQLITE_THREADSAFE=1]) the SQLite library will itself serialize access
-** to [database connections] and [prepared statements] so that the
-** application is free to use the same [database connection] or the
-** same [prepared statement] in different threads at the same time.
-** ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** it is not possible to set the Serialized [threading mode] and
-** [tdsqlite3_config()] will return [SQLITE_ERROR] if called with the
-** SQLITE_CONFIG_SERIALIZED configuration option.</dd>
-**
-** [[SQLITE_CONFIG_MALLOC]] <dt>SQLITE_CONFIG_MALLOC</dt>
-** <dd> ^(The SQLITE_CONFIG_MALLOC option takes a single argument which is 
-** a pointer to an instance of the [tdsqlite3_mem_methods] structure.
-** The argument specifies
-** alternative low-level memory allocation routines to be used in place of
-** the memory allocation routines built into SQLite.)^ ^SQLite makes
-** its own private copy of the content of the [tdsqlite3_mem_methods] structure
-** before the [tdsqlite3_config()] call returns.</dd>
-**
-** [[SQLITE_CONFIG_GETMALLOC]] <dt>SQLITE_CONFIG_GETMALLOC</dt>
-** <dd> ^(The SQLITE_CONFIG_GETMALLOC option takes a single argument which
-** is a pointer to an instance of the [tdsqlite3_mem_methods] structure.
-** The [tdsqlite3_mem_methods]
-** structure is filled with the currently defined memory allocation routines.)^
-** This option can be used to overload the default memory allocation
-** routines with a wrapper that simulations memory allocation failure or
-** tracks memory usage, for example. </dd>
-**
-** [[SQLITE_CONFIG_SMALL_MALLOC]] <dt>SQLITE_CONFIG_SMALL_MALLOC</dt>
-** <dd> ^The SQLITE_CONFIG_SMALL_MALLOC option takes single argument of
-** type int, interpreted as a boolean, which if true provides a hint to
-** SQLite that it should avoid large memory allocations if possible.
-** SQLite will run faster if it is free to make large memory allocations,
-** but some application might prefer to run slower in exchange for
-** guarantees about memory fragmentation that are possible if large
-** allocations are avoided.  This hint is normally off.
-** </dd>
-**
-** [[SQLITE_CONFIG_MEMSTATUS]] <dt>SQLITE_CONFIG_MEMSTATUS</dt>
-** <dd> ^The SQLITE_CONFIG_MEMSTATUS option takes single argument of type int,
-** interpreted as a boolean, which enables or disables the collection of
-** memory allocation statistics. ^(When memory allocation statistics are
-** disabled, the following SQLite interfaces become non-operational:
-**   <ul>
-**   <li> [tdsqlite3_hard_heap_limit64()]
-**   <li> [tdsqlite3_memory_used()]
-**   <li> [tdsqlite3_memory_highwater()]
-**   <li> [tdsqlite3_soft_heap_limit64()]
-**   <li> [tdsqlite3_status64()]
-**   </ul>)^
-** ^Memory allocation statistics are enabled by default unless SQLite is
-** compiled with [SQLITE_DEFAULT_MEMSTATUS]=0 in which case memory
-** allocation statistics are disabled by default.
-** </dd>
-**
-** [[SQLITE_CONFIG_SCRATCH]] <dt>SQLITE_CONFIG_SCRATCH</dt>
-** <dd> The SQLITE_CONFIG_SCRATCH option is no longer used.
-** </dd>
-**
-** [[SQLITE_CONFIG_PAGECACHE]] <dt>SQLITE_CONFIG_PAGECACHE</dt>
-** <dd> ^The SQLITE_CONFIG_PAGECACHE option specifies a memory pool
-** that SQLite can use for the database page cache with the default page
-** cache implementation.  
-** This configuration option is a no-op if an application-defined page
-** cache implementation is loaded using the [SQLITE_CONFIG_PCACHE2].
-** ^There are three arguments to SQLITE_CONFIG_PAGECACHE: A pointer to
-** 8-byte aligned memory (pMem), the size of each page cache line (sz),
-** and the number of cache lines (N).
-** The sz argument should be the size of the largest database page
-** (a power of two between 512 and 65536) plus some extra bytes for each
-** page header.  ^The number of extra bytes needed by the page header
-** can be determined using [SQLITE_CONFIG_PCACHE_HDRSZ].
-** ^It is harmless, apart from the wasted memory,
-** for the sz parameter to be larger than necessary.  The pMem
-** argument must be either a NULL pointer or a pointer to an 8-byte
-** aligned block of memory of at least sz*N bytes, otherwise
-** subsequent behavior is undefined.
-** ^When pMem is not NULL, SQLite will strive to use the memory provided
-** to satisfy page cache needs, falling back to [tdsqlite3_malloc()] if
-** a page cache line is larger than sz bytes or if all of the pMem buffer
-** is exhausted.
-** ^If pMem is NULL and N is non-zero, then each database connection
-** does an initial bulk allocation for page cache memory
-** from [tdsqlite3_malloc()] sufficient for N cache lines if N is positive or
-** of -1024*N bytes if N is negative, . ^If additional
-** page cache memory is needed beyond what is provided by the initial
-** allocation, then SQLite goes to [tdsqlite3_malloc()] separately for each
-** additional cache line. </dd>
-**
-** [[SQLITE_CONFIG_HEAP]] <dt>SQLITE_CONFIG_HEAP</dt>
-** <dd> ^The SQLITE_CONFIG_HEAP option specifies a static memory buffer 
-** that SQLite will use for all of its dynamic memory allocation needs
-** beyond those provided for by [SQLITE_CONFIG_PAGECACHE].
-** ^The SQLITE_CONFIG_HEAP option is only available if SQLite is compiled
-** with either [SQLITE_ENABLE_MEMSYS3] or [SQLITE_ENABLE_MEMSYS5] and returns
-** [SQLITE_ERROR] if invoked otherwise.
-** ^There are three arguments to SQLITE_CONFIG_HEAP:
-** An 8-byte aligned pointer to the memory,
-** the number of bytes in the memory buffer, and the minimum allocation size.
-** ^If the first pointer (the memory pointer) is NULL, then SQLite reverts
-** to using its default memory allocator (the system malloc() implementation),
-** undoing any prior invocation of [SQLITE_CONFIG_MALLOC].  ^If the
-** memory pointer is not NULL then the alternative memory
-** allocator is engaged to handle all of SQLites memory allocation needs.
-** The first pointer (the memory pointer) must be aligned to an 8-byte
-** boundary or subsequent behavior of SQLite will be undefined.
-** The minimum allocation size is capped at 2**12. Reasonable values
-** for the minimum allocation size are 2**5 through 2**8.</dd>
-**
-** [[SQLITE_CONFIG_MUTEX]] <dt>SQLITE_CONFIG_MUTEX</dt>
-** <dd> ^(The SQLITE_CONFIG_MUTEX option takes a single argument which is a
-** pointer to an instance of the [tdsqlite3_mutex_methods] structure.
-** The argument specifies alternative low-level mutex routines to be used
-** in place the mutex routines built into SQLite.)^  ^SQLite makes a copy of
-** the content of the [tdsqlite3_mutex_methods] structure before the call to
-** [tdsqlite3_config()] returns. ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** the entire mutexing subsystem is omitted from the build and hence calls to
-** [tdsqlite3_config()] with the SQLITE_CONFIG_MUTEX configuration option will
-** return [SQLITE_ERROR].</dd>
-**
-** [[SQLITE_CONFIG_GETMUTEX]] <dt>SQLITE_CONFIG_GETMUTEX</dt>
-** <dd> ^(The SQLITE_CONFIG_GETMUTEX option takes a single argument which
-** is a pointer to an instance of the [tdsqlite3_mutex_methods] structure.  The
-** [tdsqlite3_mutex_methods]
-** structure is filled with the currently defined mutex routines.)^
-** This option can be used to overload the default mutex allocation
-** routines with a wrapper used to track mutex usage for performance
-** profiling or testing, for example.   ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** the entire mutexing subsystem is omitted from the build and hence calls to
-** [tdsqlite3_config()] with the SQLITE_CONFIG_GETMUTEX configuration option will
-** return [SQLITE_ERROR].</dd>
-**
-** [[SQLITE_CONFIG_LOOKASIDE]] <dt>SQLITE_CONFIG_LOOKASIDE</dt>
-** <dd> ^(The SQLITE_CONFIG_LOOKASIDE option takes two arguments that determine
-** the default size of lookaside memory on each [database connection].
-** The first argument is the
-** size of each lookaside buffer slot and the second is the number of
-** slots allocated to each database connection.)^  ^(SQLITE_CONFIG_LOOKASIDE
-** sets the <i>default</i> lookaside size. The [SQLITE_DBCONFIG_LOOKASIDE]
-** option to [tdsqlite3_db_config()] can be used to change the lookaside
-** configuration on individual connections.)^ </dd>
-**
-** [[SQLITE_CONFIG_PCACHE2]] <dt>SQLITE_CONFIG_PCACHE2</dt>
-** <dd> ^(The SQLITE_CONFIG_PCACHE2 option takes a single argument which is 
-** a pointer to an [tdsqlite3_pcache_methods2] object.  This object specifies
-** the interface to a custom page cache implementation.)^
-** ^SQLite makes a copy of the [tdsqlite3_pcache_methods2] object.</dd>
-**
-** [[SQLITE_CONFIG_GETPCACHE2]] <dt>SQLITE_CONFIG_GETPCACHE2</dt>
-** <dd> ^(The SQLITE_CONFIG_GETPCACHE2 option takes a single argument which
-** is a pointer to an [tdsqlite3_pcache_methods2] object.  SQLite copies of
-** the current page cache implementation into that object.)^ </dd>
-**
-** [[SQLITE_CONFIG_LOG]] <dt>SQLITE_CONFIG_LOG</dt>
-** <dd> The SQLITE_CONFIG_LOG option is used to configure the SQLite
-** global [error log].
-** (^The SQLITE_CONFIG_LOG option takes two arguments: a pointer to a
-** function with a call signature of void(*)(void*,int,const char*), 
-** and a pointer to void. ^If the function pointer is not NULL, it is
-** invoked by [tdsqlite3_log()] to process each logging event.  ^If the
-** function pointer is NULL, the [tdsqlite3_log()] interface becomes a no-op.
-** ^The void pointer that is the second argument to SQLITE_CONFIG_LOG is
-** passed through as the first parameter to the application-defined logger
-** function whenever that function is invoked.  ^The second parameter to
-** the logger function is a copy of the first parameter to the corresponding
-** [tdsqlite3_log()] call and is intended to be a [result code] or an
-** [extended result code].  ^The third parameter passed to the logger is
-** log message after formatting via [tdsqlite3_snprintf()].
-** The SQLite logging interface is not reentrant; the logger function
-** supplied by the application must not invoke any SQLite interface.
-** In a multi-threaded application, the application-defined logger
-** function must be threadsafe. </dd>
-**
-** [[SQLITE_CONFIG_URI]] <dt>SQLITE_CONFIG_URI
-** <dd>^(The SQLITE_CONFIG_URI option takes a single argument of type int.
-** If non-zero, then URI handling is globally enabled. If the parameter is zero,
-** then URI handling is globally disabled.)^ ^If URI handling is globally
-** enabled, all filenames passed to [tdsqlite3_open()], [tdsqlite3_open_v2()],
-** [tdsqlite3_open16()] or
-** specified as part of [ATTACH] commands are interpreted as URIs, regardless
-** of whether or not the [SQLITE_OPEN_URI] flag is set when the database
-** connection is opened. ^If it is globally disabled, filenames are
-** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the
-** database connection is opened. ^(By default, URI handling is globally
-** disabled. The default value may be changed by compiling with the
-** [SQLITE_USE_URI] symbol defined.)^
-**
-** [[SQLITE_CONFIG_COVERING_INDEX_SCAN]] <dt>SQLITE_CONFIG_COVERING_INDEX_SCAN
-** <dd>^The SQLITE_CONFIG_COVERING_INDEX_SCAN option takes a single integer
-** argument which is interpreted as a boolean in order to enable or disable
-** the use of covering indices for full table scans in the query optimizer.
-** ^The default setting is determined
-** by the [SQLITE_ALLOW_COVERING_INDEX_SCAN] compile-time option, or is "on"
-** if that compile-time option is omitted.
-** The ability to disable the use of covering indices for full table scans
-** is because some incorrectly coded legacy applications might malfunction
-** when the optimization is enabled.  Providing the ability to
-** disable the optimization allows the older, buggy application code to work
-** without change even with newer versions of SQLite.
-**
-** [[SQLITE_CONFIG_PCACHE]] [[SQLITE_CONFIG_GETPCACHE]]
-** <dt>SQLITE_CONFIG_PCACHE and SQLITE_CONFIG_GETPCACHE
-** <dd> These options are obsolete and should not be used by new code.
-** They are retained for backwards compatibility but are now no-ops.
-** </dd>
-**
-** [[SQLITE_CONFIG_SQLLOG]]
-** <dt>SQLITE_CONFIG_SQLLOG
-** <dd>This option is only available if sqlite is compiled with the
-** [SQLITE_ENABLE_SQLLOG] pre-processor macro defined. The first argument should
-** be a pointer to a function of type void(*)(void*,tdsqlite3*,const char*, int).
-** The second should be of type (void*). The callback is invoked by the library
-** in three separate circumstances, identified by the value passed as the
-** fourth parameter. If the fourth parameter is 0, then the database connection
-** passed as the second argument has just been opened. The third argument
-** points to a buffer containing the name of the main database file. If the
-** fourth parameter is 1, then the SQL statement that the third parameter
-** points to has just been executed. Or, if the fourth parameter is 2, then
-** the connection being passed as the second parameter is being closed. The
-** third parameter is passed NULL In this case.  An example of using this
-** configuration option can be seen in the "test_sqllog.c" source file in
-** the canonical SQLite source tree.</dd>
-**
-** [[SQLITE_CONFIG_MMAP_SIZE]]
-** <dt>SQLITE_CONFIG_MMAP_SIZE
-** <dd>^SQLITE_CONFIG_MMAP_SIZE takes two 64-bit integer (tdsqlite3_int64) values
-** that are the default mmap size limit (the default setting for
-** [PRAGMA mmap_size]) and the maximum allowed mmap size limit.
-** ^The default setting can be overridden by each database connection using
-** either the [PRAGMA mmap_size] command, or by using the
-** [SQLITE_FCNTL_MMAP_SIZE] file control.  ^(The maximum allowed mmap size
-** will be silently truncated if necessary so that it does not exceed the
-** compile-time maximum mmap size set by the
-** [SQLITE_MAX_MMAP_SIZE] compile-time option.)^
-** ^If either argument to this option is negative, then that argument is
-** changed to its compile-time default.
-**
-** [[SQLITE_CONFIG_WIN32_HEAPSIZE]]
-** <dt>SQLITE_CONFIG_WIN32_HEAPSIZE
-** <dd>^The SQLITE_CONFIG_WIN32_HEAPSIZE option is only available if SQLite is
-** compiled for Windows with the [SQLITE_WIN32_MALLOC] pre-processor macro
-** defined. ^SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value
-** that specifies the maximum size of the created heap.
-**
-** [[SQLITE_CONFIG_PCACHE_HDRSZ]]
-** <dt>SQLITE_CONFIG_PCACHE_HDRSZ
-** <dd>^The SQLITE_CONFIG_PCACHE_HDRSZ option takes a single parameter which
-** is a pointer to an integer and writes into that integer the number of extra
-** bytes per page required for each page in [SQLITE_CONFIG_PAGECACHE].
-** The amount of extra space required can change depending on the compiler,
-** target platform, and SQLite version.
-**
-** [[SQLITE_CONFIG_PMASZ]]
-** <dt>SQLITE_CONFIG_PMASZ
-** <dd>^The SQLITE_CONFIG_PMASZ option takes a single parameter which
-** is an unsigned integer and sets the "Minimum PMA Size" for the multithreaded
-** sorter to that integer.  The default minimum PMA Size is set by the
-** [SQLITE_SORTER_PMASZ] compile-time option.  New threads are launched
-** to help with sort operations when multithreaded sorting
-** is enabled (using the [PRAGMA threads] command) and the amount of content
-** to be sorted exceeds the page size times the minimum of the
-** [PRAGMA cache_size] setting and this value.
-**
-** [[SQLITE_CONFIG_STMTJRNL_SPILL]]
-** <dt>SQLITE_CONFIG_STMTJRNL_SPILL
-** <dd>^The SQLITE_CONFIG_STMTJRNL_SPILL option takes a single parameter which
-** becomes the [statement journal] spill-to-disk threshold.  
-** [Statement journals] are held in memory until their size (in bytes)
-** exceeds this threshold, at which point they are written to disk.
-** Or if the threshold is -1, statement journals are always held
-** exclusively in memory.
-** Since many statement journals never become large, setting the spill
-** threshold to a value such as 64KiB can greatly reduce the amount of
-** I/O required to support statement rollback.
-** The default value for this setting is controlled by the
-** [SQLITE_STMTJRNL_SPILL] compile-time option.
-**
-** [[SQLITE_CONFIG_SORTERREF_SIZE]]
-** <dt>SQLITE_CONFIG_SORTERREF_SIZE
-** <dd>The SQLITE_CONFIG_SORTERREF_SIZE option accepts a single parameter
-** of type (int) - the new value of the sorter-reference size threshold.
-** Usually, when SQLite uses an external sort to order records according
-** to an ORDER BY clause, all fields required by the caller are present in the
-** sorted records. However, if SQLite determines based on the declared type
-** of a table column that its values are likely to be very large - larger
-** than the configured sorter-reference size threshold - then a reference
-** is stored in each sorted record and the required column values loaded
-** from the database as records are returned in sorted order. The default
-** value for this option is to never use this optimization. Specifying a 
-** negative value for this option restores the default behaviour.
-** This option is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_SORTER_REFERENCES] compile-time option.
-**
-** [[SQLITE_CONFIG_MEMDB_MAXSIZE]]
-** <dt>SQLITE_CONFIG_MEMDB_MAXSIZE
-** <dd>The SQLITE_CONFIG_MEMDB_MAXSIZE option accepts a single parameter
-** [tdsqlite3_int64] parameter which is the default maximum size for an in-memory
-** database created using [tdsqlite3_deserialize()].  This default maximum
-** size can be adjusted up or down for individual databases using the
-** [SQLITE_FCNTL_SIZE_LIMIT] [tdsqlite3_file_control|file-control].  If this
-** configuration setting is never used, then the default maximum is determined
-** by the [SQLITE_MEMDB_DEFAULT_MAXSIZE] compile-time option.  If that
-** compile-time option is not set, then the default maximum is 1073741824.
-** </dl>
-*/
-#define SQLITE_CONFIG_SINGLETHREAD  1  /* nil */
-#define SQLITE_CONFIG_MULTITHREAD   2  /* nil */
-#define SQLITE_CONFIG_SERIALIZED    3  /* nil */
-#define SQLITE_CONFIG_MALLOC        4  /* tdsqlite3_mem_methods* */
-#define SQLITE_CONFIG_GETMALLOC     5  /* tdsqlite3_mem_methods* */
-#define SQLITE_CONFIG_SCRATCH       6  /* No longer used */
-#define SQLITE_CONFIG_PAGECACHE     7  /* void*, int sz, int N */
-#define SQLITE_CONFIG_HEAP          8  /* void*, int nByte, int min */
-#define SQLITE_CONFIG_MEMSTATUS     9  /* boolean */
-#define SQLITE_CONFIG_MUTEX        10  /* tdsqlite3_mutex_methods* */
-#define SQLITE_CONFIG_GETMUTEX     11  /* tdsqlite3_mutex_methods* */
-/* previously SQLITE_CONFIG_CHUNKALLOC 12 which is now unused. */ 
-#define SQLITE_CONFIG_LOOKASIDE    13  /* int int */
-#define SQLITE_CONFIG_PCACHE       14  /* no-op */
-#define SQLITE_CONFIG_GETPCACHE    15  /* no-op */
-#define SQLITE_CONFIG_LOG          16  /* xFunc, void* */
-#define SQLITE_CONFIG_URI          17  /* int */
-#define SQLITE_CONFIG_PCACHE2      18  /* tdsqlite3_pcache_methods2* */
-#define SQLITE_CONFIG_GETPCACHE2   19  /* tdsqlite3_pcache_methods2* */
-#define SQLITE_CONFIG_COVERING_INDEX_SCAN 20  /* int */
-#define SQLITE_CONFIG_SQLLOG       21  /* xSqllog, void* */
-#define SQLITE_CONFIG_MMAP_SIZE    22  /* tdsqlite3_int64, tdsqlite3_int64 */
-#define SQLITE_CONFIG_WIN32_HEAPSIZE      23  /* int nByte */
-#define SQLITE_CONFIG_PCACHE_HDRSZ        24  /* int *psz */
-#define SQLITE_CONFIG_PMASZ               25  /* unsigned int szPma */
-#define SQLITE_CONFIG_STMTJRNL_SPILL      26  /* int nByte */
-#define SQLITE_CONFIG_SMALL_MALLOC        27  /* boolean */
-#define SQLITE_CONFIG_SORTERREF_SIZE      28  /* int nByte */
-#define SQLITE_CONFIG_MEMDB_MAXSIZE       29  /* tdsqlite3_int64 */
-
-/*
-** CAPI3REF: Database Connection Configuration Options
-**
-** These constants are the available integer configuration options that
-** can be passed as the second argument to the [tdsqlite3_db_config()] interface.
-**
-** New configuration options may be added in future releases of SQLite.
-** Existing configuration options might be discontinued.  Applications
-** should check the return code from [tdsqlite3_db_config()] to make sure that
-** the call worked.  ^The [tdsqlite3_db_config()] interface will return a
-** non-zero [error code] if a discontinued or unsupported configuration option
-** is invoked.
-**
-** <dl>
-** [[SQLITE_DBCONFIG_LOOKASIDE]]
-** <dt>SQLITE_DBCONFIG_LOOKASIDE</dt>
-** <dd> ^This option takes three additional arguments that determine the 
-** [lookaside memory allocator] configuration for the [database connection].
-** ^The first argument (the third parameter to [tdsqlite3_db_config()] is a
-** pointer to a memory buffer to use for lookaside memory.
-** ^The first argument after the SQLITE_DBCONFIG_LOOKASIDE verb
-** may be NULL in which case SQLite will allocate the
-** lookaside buffer itself using [tdsqlite3_malloc()]. ^The second argument is the
-** size of each lookaside buffer slot.  ^The third argument is the number of
-** slots.  The size of the buffer in the first argument must be greater than
-** or equal to the product of the second and third arguments.  The buffer
-** must be aligned to an 8-byte boundary.  ^If the second argument to
-** SQLITE_DBCONFIG_LOOKASIDE is not a multiple of 8, it is internally
-** rounded down to the next smaller multiple of 8.  ^(The lookaside memory
-** configuration for a database connection can only be changed when that
-** connection is not currently using lookaside memory, or in other words
-** when the "current value" returned by
-** [tdsqlite3_db_status](D,[SQLITE_CONFIG_LOOKASIDE],...) is zero.
-** Any attempt to change the lookaside memory configuration when lookaside
-** memory is in use leaves the configuration unchanged and returns 
-** [SQLITE_BUSY].)^</dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_FKEY]]
-** <dt>SQLITE_DBCONFIG_ENABLE_FKEY</dt>
-** <dd> ^This option is used to enable or disable the enforcement of
-** [foreign key constraints].  There should be two additional arguments.
-** The first argument is an integer which is 0 to disable FK enforcement,
-** positive to enable FK enforcement or negative to leave FK enforcement
-** unchanged.  The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether FK enforcement is off or on
-** following this call.  The second parameter may be a NULL pointer, in
-** which case the FK enforcement setting is not reported back. </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_TRIGGER]]
-** <dt>SQLITE_DBCONFIG_ENABLE_TRIGGER</dt>
-** <dd> ^This option is used to enable or disable [CREATE TRIGGER | triggers].
-** There should be two additional arguments.
-** The first argument is an integer which is 0 to disable triggers,
-** positive to enable triggers or negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether triggers are disabled or enabled
-** following this call.  The second parameter may be a NULL pointer, in
-** which case the trigger setting is not reported back. </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_VIEW]]
-** <dt>SQLITE_DBCONFIG_ENABLE_VIEW</dt>
-** <dd> ^This option is used to enable or disable [CREATE VIEW | views].
-** There should be two additional arguments.
-** The first argument is an integer which is 0 to disable views,
-** positive to enable views or negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether views are disabled or enabled
-** following this call.  The second parameter may be a NULL pointer, in
-** which case the view setting is not reported back. </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER]]
-** <dt>SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER</dt>
-** <dd> ^This option is used to enable or disable the
-** [fts3_tokenizer()] function which is part of the
-** [FTS3] full-text search engine extension.
-** There should be two additional arguments.
-** The first argument is an integer which is 0 to disable fts3_tokenizer() or
-** positive to enable fts3_tokenizer() or negative to leave the setting
-** unchanged.
-** The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether fts3_tokenizer is disabled or enabled
-** following this call.  The second parameter may be a NULL pointer, in
-** which case the new setting is not reported back. </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION]]
-** <dt>SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION</dt>
-** <dd> ^This option is used to enable or disable the [tdsqlite3_load_extension()]
-** interface independently of the [load_extension()] SQL function.
-** The [tdsqlite3_enable_load_extension()] API enables or disables both the
-** C-API [tdsqlite3_load_extension()] and the SQL function [load_extension()].
-** There should be two additional arguments.
-** When the first argument to this interface is 1, then only the C-API is
-** enabled and the SQL function remains disabled.  If the first argument to
-** this interface is 0, then both the C-API and the SQL function are disabled.
-** If the first argument is -1, then no changes are made to state of either the
-** C-API or the SQL function.
-** The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether [tdsqlite3_load_extension()] interface
-** is disabled or enabled following this call.  The second parameter may
-** be a NULL pointer, in which case the new setting is not reported back.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_MAINDBNAME]] <dt>SQLITE_DBCONFIG_MAINDBNAME</dt>
-** <dd> ^This option is used to change the name of the "main" database
-** schema.  ^The sole argument is a pointer to a constant UTF8 string
-** which will become the new schema name in place of "main".  ^SQLite
-** does not make a copy of the new main schema name string, so the application
-** must ensure that the argument passed into this DBCONFIG option is unchanged
-** until after the database connection closes.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE]] 
-** <dt>SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE</dt>
-** <dd> Usually, when a database in wal mode is closed or detached from a 
-** database handle, SQLite checks if this will mean that there are now no 
-** connections at all to the database. If so, it performs a checkpoint 
-** operation before closing the connection. This option may be used to
-** override this behaviour. The first parameter passed to this operation
-** is an integer - positive to disable checkpoints-on-close, or zero (the
-** default) to enable them, and negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer
-** into which is written 0 or 1 to indicate whether checkpoints-on-close
-** have been disabled - 0 if they are not disabled, 1 if they are.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_QPSG]] <dt>SQLITE_DBCONFIG_ENABLE_QPSG</dt>
-** <dd>^(The SQLITE_DBCONFIG_ENABLE_QPSG option activates or deactivates
-** the [query planner stability guarantee] (QPSG).  When the QPSG is active,
-** a single SQL query statement will always use the same algorithm regardless
-** of values of [bound parameters].)^ The QPSG disables some query optimizations
-** that look at the values of bound parameters, which can make some queries
-** slower.  But the QPSG has the advantage of more predictable behavior.  With
-** the QPSG active, SQLite will always use the same query plan in the field as
-** was used during testing in the lab.
-** The first argument to this setting is an integer which is 0 to disable 
-** the QPSG, positive to enable QPSG, or negative to leave the setting
-** unchanged. The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether the QPSG is disabled or enabled
-** following this call.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_TRIGGER_EQP]] <dt>SQLITE_DBCONFIG_TRIGGER_EQP</dt>
-** <dd> By default, the output of EXPLAIN QUERY PLAN commands does not 
-** include output for any operations performed by trigger programs. This
-** option is used to set or clear (the default) a flag that governs this
-** behavior. The first parameter passed to this operation is an integer -
-** positive to enable output for trigger programs, or zero to disable it,
-** or negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer into which is written 
-** 0 or 1 to indicate whether output-for-triggers has been disabled - 0 if 
-** it is not disabled, 1 if it is.  
-** </dd>
-**
-** [[SQLITE_DBCONFIG_RESET_DATABASE]] <dt>SQLITE_DBCONFIG_RESET_DATABASE</dt>
-** <dd> Set the SQLITE_DBCONFIG_RESET_DATABASE flag and then run
-** [VACUUM] in order to reset a database back to an empty database
-** with no schema and no content. The following process works even for
-** a badly corrupted database file:
-** <ol>
-** <li> If the database connection is newly opened, make sure it has read the
-**      database schema by preparing then discarding some query against the
-**      database, or calling tdsqlite3_table_column_metadata(), ignoring any
-**      errors.  This step is only necessary if the application desires to keep
-**      the database in WAL mode after the reset if it was in WAL mode before
-**      the reset.  
-** <li> tdsqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0);
-** <li> [tdsqlite3_exec](db, "[VACUUM]", 0, 0, 0);
-** <li> tdsqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0);
-** </ol>
-** Because resetting a database is destructive and irreversible, the
-** process requires the use of this obscure API and multiple steps to help
-** ensure that it does not happen by accident.
-**
-** [[SQLITE_DBCONFIG_DEFENSIVE]] <dt>SQLITE_DBCONFIG_DEFENSIVE</dt>
-** <dd>The SQLITE_DBCONFIG_DEFENSIVE option activates or deactivates the
-** "defensive" flag for a database connection.  When the defensive
-** flag is enabled, language features that allow ordinary SQL to 
-** deliberately corrupt the database file are disabled.  The disabled
-** features include but are not limited to the following:
-** <ul>
-** <li> The [PRAGMA writable_schema=ON] statement.
-** <li> The [PRAGMA journal_mode=OFF] statement.
-** <li> Writes to the [sqlite_dbpage] virtual table.
-** <li> Direct writes to [shadow tables].
-** </ul>
-** </dd>
-**
-** [[SQLITE_DBCONFIG_WRITABLE_SCHEMA]] <dt>SQLITE_DBCONFIG_WRITABLE_SCHEMA</dt>
-** <dd>The SQLITE_DBCONFIG_WRITABLE_SCHEMA option activates or deactivates the
-** "writable_schema" flag. This has the same effect and is logically equivalent
-** to setting [PRAGMA writable_schema=ON] or [PRAGMA writable_schema=OFF].
-** The first argument to this setting is an integer which is 0 to disable 
-** the writable_schema, positive to enable writable_schema, or negative to
-** leave the setting unchanged. The second parameter is a pointer to an
-** integer into which is written 0 or 1 to indicate whether the writable_schema
-** is enabled or disabled following this call.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_LEGACY_ALTER_TABLE]]
-** <dt>SQLITE_DBCONFIG_LEGACY_ALTER_TABLE</dt>
-** <dd>The SQLITE_DBCONFIG_LEGACY_ALTER_TABLE option activates or deactivates
-** the legacy behavior of the [ALTER TABLE RENAME] command such it
-** behaves as it did prior to [version 3.24.0] (2018-06-04).  See the
-** "Compatibility Notice" on the [ALTER TABLE RENAME documentation] for
-** additional information. This feature can also be turned on and off
-** using the [PRAGMA legacy_alter_table] statement.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_DQS_DML]]
-** <dt>SQLITE_DBCONFIG_DQS_DML</td>
-** <dd>The SQLITE_DBCONFIG_DQS_DML option activates or deactivates
-** the legacy [double-quoted string literal] misfeature for DML statements
-** only, that is DELETE, INSERT, SELECT, and UPDATE statements. The
-** default value of this setting is determined by the [-DSQLITE_DQS]
-** compile-time option.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_DQS_DDL]]
-** <dt>SQLITE_DBCONFIG_DQS_DDL</td>
-** <dd>The SQLITE_DBCONFIG_DQS option activates or deactivates
-** the legacy [double-quoted string literal] misfeature for DDL statements,
-** such as CREATE TABLE and CREATE INDEX. The
-** default value of this setting is determined by the [-DSQLITE_DQS]
-** compile-time option.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_TRUSTED_SCHEMA]]
-** <dt>SQLITE_DBCONFIG_TRUSTED_SCHEMA</td>
-** <dd>The SQLITE_DBCONFIG_TRUSTED_SCHEMA option tells SQLite to
-** assume that database schemas (the contents of the [sqlite_master] tables)
-** are untainted by malicious content.
-** When the SQLITE_DBCONFIG_TRUSTED_SCHEMA option is disabled, SQLite
-** takes additional defensive steps to protect the application from harm
-** including:
-** <ul>
-** <li> Prohibit the use of SQL functions inside triggers, views,
-** CHECK constraints, DEFAULT clauses, expression indexes, 
-** partial indexes, or generated columns
-** unless those functions are tagged with [SQLITE_INNOCUOUS].
-** <li> Prohibit the use of virtual tables inside of triggers or views
-** unless those virtual tables are tagged with [SQLITE_VTAB_INNOCUOUS].
-** </ul>
-** This setting defaults to "on" for legacy compatibility, however
-** all applications are advised to turn it off if possible. This setting
-** can also be controlled using the [PRAGMA trusted_schema] statement.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_LEGACY_FILE_FORMAT]]
-** <dt>SQLITE_DBCONFIG_LEGACY_FILE_FORMAT</td>
-** <dd>The SQLITE_DBCONFIG_LEGACY_FILE_FORMAT option activates or deactivates
-** the legacy file format flag.  When activated, this flag causes all newly
-** created database file to have a schema format version number (the 4-byte
-** integer found at offset 44 into the database header) of 1.  This in turn
-** means that the resulting database file will be readable and writable by
-** any SQLite version back to 3.0.0 ([dateof:3.0.0]).  Without this setting,
-** newly created databases are generally not understandable by SQLite versions
-** prior to 3.3.0 ([dateof:3.3.0]).  As these words are written, there
-** is now scarcely any need to generated database files that are compatible 
-** all the way back to version 3.0.0, and so this setting is of little
-** practical use, but is provided so that SQLite can continue to claim the
-** ability to generate new database files that are compatible with  version
-** 3.0.0.
-** <p>Note that when the SQLITE_DBCONFIG_LEGACY_FILE_FORMAT setting is on,
-** the [VACUUM] command will fail with an obscure error when attempting to
-** process a table with generated columns and a descending index.  This is
-** not considered a bug since SQLite versions 3.3.0 and earlier do not support
-** either generated columns or decending indexes.
-** </dd>
-** </dl>
-*/
-#define SQLITE_DBCONFIG_MAINDBNAME            1000 /* const char* */
-#define SQLITE_DBCONFIG_LOOKASIDE             1001 /* void* int int */
-#define SQLITE_DBCONFIG_ENABLE_FKEY           1002 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_TRIGGER        1003 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005 /* int int* */
-#define SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE      1006 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_QPSG           1007 /* int int* */
-#define SQLITE_DBCONFIG_TRIGGER_EQP           1008 /* int int* */
-#define SQLITE_DBCONFIG_RESET_DATABASE        1009 /* int int* */
-#define SQLITE_DBCONFIG_DEFENSIVE             1010 /* int int* */
-#define SQLITE_DBCONFIG_WRITABLE_SCHEMA       1011 /* int int* */
-#define SQLITE_DBCONFIG_LEGACY_ALTER_TABLE    1012 /* int int* */
-#define SQLITE_DBCONFIG_DQS_DML               1013 /* int int* */
-#define SQLITE_DBCONFIG_DQS_DDL               1014 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_VIEW           1015 /* int int* */
-#define SQLITE_DBCONFIG_LEGACY_FILE_FORMAT    1016 /* int int* */
-#define SQLITE_DBCONFIG_TRUSTED_SCHEMA        1017 /* int int* */
-#define SQLITE_DBCONFIG_MAX                   1017 /* Largest DBCONFIG */
-
-/*
-** CAPI3REF: Enable Or Disable Extended Result Codes
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_extended_result_codes() routine enables or disables the
-** [extended result codes] feature of SQLite. ^The extended result
-** codes are disabled by default for historical compatibility.
-*/
-SQLITE_API int tdsqlite3_extended_result_codes(tdsqlite3*, int onoff);
-
-/*
-** CAPI3REF: Last Insert Rowid
-** METHOD: tdsqlite3
-**
-** ^Each entry in most SQLite tables (except for [WITHOUT ROWID] tables)
-** has a unique 64-bit signed
-** integer key called the [ROWID | "rowid"]. ^The rowid is always available
-** as an undeclared column named ROWID, OID, or _ROWID_ as long as those
-** names are not also used by explicitly declared columns. ^If
-** the table has a column of type [INTEGER PRIMARY KEY] then that column
-** is another alias for the rowid.
-**
-** ^The tdsqlite3_last_insert_rowid(D) interface usually returns the [rowid] of
-** the most recent successful [INSERT] into a rowid table or [virtual table]
-** on database connection D. ^Inserts into [WITHOUT ROWID] tables are not
-** recorded. ^If no successful [INSERT]s into rowid tables have ever occurred 
-** on the database connection D, then tdsqlite3_last_insert_rowid(D) returns 
-** zero.
-**
-** As well as being set automatically as rows are inserted into database
-** tables, the value returned by this function may be set explicitly by
-** [tdsqlite3_set_last_insert_rowid()]
-**
-** Some virtual table implementations may INSERT rows into rowid tables as
-** part of committing a transaction (e.g. to flush data accumulated in memory
-** to disk). In this case subsequent calls to this function return the rowid
-** associated with these internal INSERT operations, which leads to 
-** unintuitive results. Virtual table implementations that do write to rowid
-** tables in this way can avoid this problem by restoring the original 
-** rowid value using [tdsqlite3_set_last_insert_rowid()] before returning 
-** control to the user.
-**
-** ^(If an [INSERT] occurs within a trigger then this routine will 
-** return the [rowid] of the inserted row as long as the trigger is 
-** running. Once the trigger program ends, the value returned 
-** by this routine reverts to what it was before the trigger was fired.)^
-**
-** ^An [INSERT] that fails due to a constraint violation is not a
-** successful [INSERT] and does not change the value returned by this
-** routine.  ^Thus INSERT OR FAIL, INSERT OR IGNORE, INSERT OR ROLLBACK,
-** and INSERT OR ABORT make no changes to the return value of this
-** routine when their insertion fails.  ^(When INSERT OR REPLACE
-** encounters a constraint violation, it does not fail.  The
-** INSERT continues to completion after deleting rows that caused
-** the constraint problem so INSERT OR REPLACE will always change
-** the return value of this interface.)^
-**
-** ^For the purposes of this routine, an [INSERT] is considered to
-** be successful even if it is subsequently rolled back.
-**
-** This function is accessible to SQL statements via the
-** [last_insert_rowid() SQL function].
-**
-** If a separate thread performs a new [INSERT] on the same
-** database connection while the [tdsqlite3_last_insert_rowid()]
-** function is running and thus changes the last insert [rowid],
-** then the value returned by [tdsqlite3_last_insert_rowid()] is
-** unpredictable and might not equal either the old or the new
-** last insert [rowid].
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_last_insert_rowid(tdsqlite3*);
-
-/*
-** CAPI3REF: Set the Last Insert Rowid value.
-** METHOD: tdsqlite3
-**
-** The tdsqlite3_set_last_insert_rowid(D, R) method allows the application to
-** set the value returned by calling tdsqlite3_last_insert_rowid(D) to R 
-** without inserting a row into the database.
-*/
-SQLITE_API void tdsqlite3_set_last_insert_rowid(tdsqlite3*,tdsqlite3_int64);
-
-/*
-** CAPI3REF: Count The Number Of Rows Modified
-** METHOD: tdsqlite3
-**
-** ^This function returns the number of rows modified, inserted or
-** deleted by the most recently completed INSERT, UPDATE or DELETE
-** statement on the database connection specified by the only parameter.
-** ^Executing any other type of SQL statement does not modify the value
-** returned by this function.
-**
-** ^Only changes made directly by the INSERT, UPDATE or DELETE statement are
-** considered - auxiliary changes caused by [CREATE TRIGGER | triggers], 
-** [foreign key actions] or [REPLACE] constraint resolution are not counted.
-** 
-** Changes to a view that are intercepted by 
-** [INSTEAD OF trigger | INSTEAD OF triggers] are not counted. ^The value 
-** returned by tdsqlite3_changes() immediately after an INSERT, UPDATE or 
-** DELETE statement run on a view is always zero. Only changes made to real 
-** tables are counted.
-**
-** Things are more complicated if the tdsqlite3_changes() function is
-** executed while a trigger program is running. This may happen if the
-** program uses the [changes() SQL function], or if some other callback
-** function invokes tdsqlite3_changes() directly. Essentially:
-** 
-** <ul>
-**   <li> ^(Before entering a trigger program the value returned by
-**        tdsqlite3_changes() function is saved. After the trigger program 
-**        has finished, the original value is restored.)^
-** 
-**   <li> ^(Within a trigger program each INSERT, UPDATE and DELETE 
-**        statement sets the value returned by tdsqlite3_changes() 
-**        upon completion as normal. Of course, this value will not include 
-**        any changes performed by sub-triggers, as the tdsqlite3_changes() 
-**        value will be saved and restored after each sub-trigger has run.)^
-** </ul>
-** 
-** ^This means that if the changes() SQL function (or similar) is used
-** by the first INSERT, UPDATE or DELETE statement within a trigger, it 
-** returns the value as set when the calling statement began executing.
-** ^If it is used by the second or subsequent such statement within a trigger 
-** program, the value returned reflects the number of rows modified by the 
-** previous INSERT, UPDATE or DELETE statement within the same trigger.
-**
-** If a separate thread makes changes on the same database connection
-** while [tdsqlite3_changes()] is running then the value returned
-** is unpredictable and not meaningful.
-**
-** See also:
-** <ul>
-** <li> the [tdsqlite3_total_changes()] interface
-** <li> the [count_changes pragma]
-** <li> the [changes() SQL function]
-** <li> the [data_version pragma]
-** </ul>
-*/
-SQLITE_API int tdsqlite3_changes(tdsqlite3*);
-
-/*
-** CAPI3REF: Total Number Of Rows Modified
-** METHOD: tdsqlite3
-**
-** ^This function returns the total number of rows inserted, modified or
-** deleted by all [INSERT], [UPDATE] or [DELETE] statements completed
-** since the database connection was opened, including those executed as
-** part of trigger programs. ^Executing any other type of SQL statement
-** does not affect the value returned by tdsqlite3_total_changes().
-** 
-** ^Changes made as part of [foreign key actions] are included in the
-** count, but those made as part of REPLACE constraint resolution are
-** not. ^Changes to a view that are intercepted by INSTEAD OF triggers 
-** are not counted.
-**
-** The [tdsqlite3_total_changes(D)] interface only reports the number
-** of rows that changed due to SQL statement run against database
-** connection D.  Any changes by other database connections are ignored.
-** To detect changes against a database file from other database
-** connections use the [PRAGMA data_version] command or the
-** [SQLITE_FCNTL_DATA_VERSION] [file control].
-** 
-** If a separate thread makes changes on the same database connection
-** while [tdsqlite3_total_changes()] is running then the value
-** returned is unpredictable and not meaningful.
-**
-** See also:
-** <ul>
-** <li> the [tdsqlite3_changes()] interface
-** <li> the [count_changes pragma]
-** <li> the [changes() SQL function]
-** <li> the [data_version pragma]
-** <li> the [SQLITE_FCNTL_DATA_VERSION] [file control]
-** </ul>
-*/
-SQLITE_API int tdsqlite3_total_changes(tdsqlite3*);
-
-/*
-** CAPI3REF: Interrupt A Long-Running Query
-** METHOD: tdsqlite3
-**
-** ^This function causes any pending database operation to abort and
-** return at its earliest opportunity. This routine is typically
-** called in response to a user action such as pressing "Cancel"
-** or Ctrl-C where the user wants a long query operation to halt
-** immediately.
-**
-** ^It is safe to call this routine from a thread different from the
-** thread that is currently running the database operation.  But it
-** is not safe to call this routine with a [database connection] that
-** is closed or might close before tdsqlite3_interrupt() returns.
-**
-** ^If an SQL operation is very nearly finished at the time when
-** tdsqlite3_interrupt() is called, then it might not have an opportunity
-** to be interrupted and might continue to completion.
-**
-** ^An SQL operation that is interrupted will return [SQLITE_INTERRUPT].
-** ^If the interrupted SQL operation is an INSERT, UPDATE, or DELETE
-** that is inside an explicit transaction, then the entire transaction
-** will be rolled back automatically.
-**
-** ^The tdsqlite3_interrupt(D) call is in effect until all currently running
-** SQL statements on [database connection] D complete.  ^Any new SQL statements
-** that are started after the tdsqlite3_interrupt() call and before the 
-** running statement count reaches zero are interrupted as if they had been
-** running prior to the tdsqlite3_interrupt() call.  ^New SQL statements
-** that are started after the running statement count reaches zero are
-** not effected by the tdsqlite3_interrupt().
-** ^A call to tdsqlite3_interrupt(D) that occurs when there are no running
-** SQL statements is a no-op and has no effect on SQL statements
-** that are started after the tdsqlite3_interrupt() call returns.
-*/
-SQLITE_API void tdsqlite3_interrupt(tdsqlite3*);
-
-/*
-** CAPI3REF: Determine If An SQL Statement Is Complete
-**
-** These routines are useful during command-line input to determine if the
-** currently entered text seems to form a complete SQL statement or
-** if additional input is needed before sending the text into
-** SQLite for parsing.  ^These routines return 1 if the input string
-** appears to be a complete SQL statement.  ^A statement is judged to be
-** complete if it ends with a semicolon token and is not a prefix of a
-** well-formed CREATE TRIGGER statement.  ^Semicolons that are embedded within
-** string literals or quoted identifier names or comments are not
-** independent tokens (they are part of the token in which they are
-** embedded) and thus do not count as a statement terminator.  ^Whitespace
-** and comments that follow the final semicolon are ignored.
-**
-** ^These routines return 0 if the statement is incomplete.  ^If a
-** memory allocation fails, then SQLITE_NOMEM is returned.
-**
-** ^These routines do not parse the SQL statements thus
-** will not detect syntactically incorrect SQL.
-**
-** ^(If SQLite has not been initialized using [tdsqlite3_initialize()] prior 
-** to invoking tdsqlite3_complete16() then tdsqlite3_initialize() is invoked
-** automatically by tdsqlite3_complete16().  If that initialization fails,
-** then the return value from tdsqlite3_complete16() will be non-zero
-** regardless of whether or not the input SQL is complete.)^
-**
-** The input to [tdsqlite3_complete()] must be a zero-terminated
-** UTF-8 string.
-**
-** The input to [tdsqlite3_complete16()] must be a zero-terminated
-** UTF-16 string in native byte order.
-*/
-SQLITE_API int tdsqlite3_complete(const char *sql);
-SQLITE_API int tdsqlite3_complete16(const void *sql);
-
-/*
-** CAPI3REF: Register A Callback To Handle SQLITE_BUSY Errors
-** KEYWORDS: {busy-handler callback} {busy handler}
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_busy_handler(D,X,P) routine sets a callback function X
-** that might be invoked with argument P whenever
-** an attempt is made to access a database table associated with
-** [database connection] D when another thread
-** or process has the table locked.
-** The tdsqlite3_busy_handler() interface is used to implement
-** [tdsqlite3_busy_timeout()] and [PRAGMA busy_timeout].
-**
-** ^If the busy callback is NULL, then [SQLITE_BUSY]
-** is returned immediately upon encountering the lock.  ^If the busy callback
-** is not NULL, then the callback might be invoked with two arguments.
-**
-** ^The first argument to the busy handler is a copy of the void* pointer which
-** is the third argument to tdsqlite3_busy_handler().  ^The second argument to
-** the busy handler callback is the number of times that the busy handler has
-** been invoked previously for the same locking event.  ^If the
-** busy callback returns 0, then no additional attempts are made to
-** access the database and [SQLITE_BUSY] is returned
-** to the application.
-** ^If the callback returns non-zero, then another attempt
-** is made to access the database and the cycle repeats.
-**
-** The presence of a busy handler does not guarantee that it will be invoked
-** when there is lock contention. ^If SQLite determines that invoking the busy
-** handler could result in a deadlock, it will go ahead and return [SQLITE_BUSY]
-** to the application instead of invoking the 
-** busy handler.
-** Consider a scenario where one process is holding a read lock that
-** it is trying to promote to a reserved lock and
-** a second process is holding a reserved lock that it is trying
-** to promote to an exclusive lock.  The first process cannot proceed
-** because it is blocked by the second and the second process cannot
-** proceed because it is blocked by the first.  If both processes
-** invoke the busy handlers, neither will make any progress.  Therefore,
-** SQLite returns [SQLITE_BUSY] for the first process, hoping that this
-** will induce the first process to release its read lock and allow
-** the second process to proceed.
-**
-** ^The default busy callback is NULL.
-**
-** ^(There can only be a single busy handler defined for each
-** [database connection].  Setting a new busy handler clears any
-** previously set handler.)^  ^Note that calling [tdsqlite3_busy_timeout()]
-** or evaluating [PRAGMA busy_timeout=N] will change the
-** busy handler and thus clear any previously set busy handler.
-**
-** The busy callback should not take any actions which modify the
-** database connection that invoked the busy handler.  In other words,
-** the busy handler is not reentrant.  Any such actions
-** result in undefined behavior.
-** 
-** A busy handler must not close the database connection
-** or [prepared statement] that invoked the busy handler.
-*/
-SQLITE_API int tdsqlite3_busy_handler(tdsqlite3*,int(*)(void*,int),void*);
-
-/*
-** CAPI3REF: Set A Busy Timeout
-** METHOD: tdsqlite3
-**
-** ^This routine sets a [tdsqlite3_busy_handler | busy handler] that sleeps
-** for a specified amount of time when a table is locked.  ^The handler
-** will sleep multiple times until at least "ms" milliseconds of sleeping
-** have accumulated.  ^After at least "ms" milliseconds of sleeping,
-** the handler returns 0 which causes [tdsqlite3_step()] to return
-** [SQLITE_BUSY].
-**
-** ^Calling this routine with an argument less than or equal to zero
-** turns off all busy handlers.
-**
-** ^(There can only be a single busy handler for a particular
-** [database connection] at any given moment.  If another busy handler
-** was defined  (using [tdsqlite3_busy_handler()]) prior to calling
-** this routine, that other busy handler is cleared.)^
-**
-** See also:  [PRAGMA busy_timeout]
-*/
-SQLITE_API int tdsqlite3_busy_timeout(tdsqlite3*, int ms);
-
-/*
-** CAPI3REF: Convenience Routines For Running Queries
-** METHOD: tdsqlite3
-**
-** This is a legacy interface that is preserved for backwards compatibility.
-** Use of this interface is not recommended.
-**
-** Definition: A <b>result table</b> is memory data structure created by the
-** [tdsqlite3_get_table()] interface.  A result table records the
-** complete query results from one or more queries.
-**
-** The table conceptually has a number of rows and columns.  But
-** these numbers are not part of the result table itself.  These
-** numbers are obtained separately.  Let N be the number of rows
-** and M be the number of columns.
-**
-** A result table is an array of pointers to zero-terminated UTF-8 strings.
-** There are (N+1)*M elements in the array.  The first M pointers point
-** to zero-terminated strings that  contain the names of the columns.
-** The remaining entries all point to query results.  NULL values result
-** in NULL pointers.  All other values are in their UTF-8 zero-terminated
-** string representation as returned by [tdsqlite3_column_text()].
-**
-** A result table might consist of one or more memory allocations.
-** It is not safe to pass a result table directly to [tdsqlite3_free()].
-** A result table should be deallocated using [tdsqlite3_free_table()].
-**
-** ^(As an example of the result table format, suppose a query result
-** is as follows:
-**
-** <blockquote><pre>
-**        Name        | Age
-**        -----------------------
-**        Alice       | 43
-**        Bob         | 28
-**        Cindy       | 21
-** </pre></blockquote>
-**
-** There are two columns (M==2) and three rows (N==3).  Thus the
-** result table has 8 entries.  Suppose the result table is stored
-** in an array named azResult.  Then azResult holds this content:
-**
-** <blockquote><pre>
-**        azResult&#91;0] = "Name";
-**        azResult&#91;1] = "Age";
-**        azResult&#91;2] = "Alice";
-**        azResult&#91;3] = "43";
-**        azResult&#91;4] = "Bob";
-**        azResult&#91;5] = "28";
-**        azResult&#91;6] = "Cindy";
-**        azResult&#91;7] = "21";
-** </pre></blockquote>)^
-**
-** ^The tdsqlite3_get_table() function evaluates one or more
-** semicolon-separated SQL statements in the zero-terminated UTF-8
-** string of its 2nd parameter and returns a result table to the
-** pointer given in its 3rd parameter.
-**
-** After the application has finished with the result from tdsqlite3_get_table(),
-** it must pass the result table pointer to tdsqlite3_free_table() in order to
-** release the memory that was malloced.  Because of the way the
-** [tdsqlite3_malloc()] happens within tdsqlite3_get_table(), the calling
-** function must not try to call [tdsqlite3_free()] directly.  Only
-** [tdsqlite3_free_table()] is able to release the memory properly and safely.
-**
-** The tdsqlite3_get_table() interface is implemented as a wrapper around
-** [tdsqlite3_exec()].  The tdsqlite3_get_table() routine does not have access
-** to any internal data structures of SQLite.  It uses only the public
-** interface defined here.  As a consequence, errors that occur in the
-** wrapper layer outside of the internal [tdsqlite3_exec()] call are not
-** reflected in subsequent calls to [tdsqlite3_errcode()] or
-** [tdsqlite3_errmsg()].
-*/
-SQLITE_API int tdsqlite3_get_table(
-  tdsqlite3 *db,          /* An open database */
-  const char *zSql,     /* SQL to be evaluated */
-  char ***pazResult,    /* Results of the query */
-  int *pnRow,           /* Number of result rows written here */
-  int *pnColumn,        /* Number of result columns written here */
-  char **pzErrmsg       /* Error msg written here */
-);
-SQLITE_API void tdsqlite3_free_table(char **result);
-
-/*
-** CAPI3REF: Formatted String Printing Functions
-**
-** These routines are work-alikes of the "printf()" family of functions
-** from the standard C library.
-** These routines understand most of the common formatting options from
-** the standard library printf() 
-** plus some additional non-standard formats ([%q], [%Q], [%w], and [%z]).
-** See the [built-in printf()] documentation for details.
-**
-** ^The tdsqlite3_mprintf() and tdsqlite3_vmprintf() routines write their
-** results into memory obtained from [tdsqlite3_malloc64()].
-** The strings returned by these two routines should be
-** released by [tdsqlite3_free()].  ^Both routines return a
-** NULL pointer if [tdsqlite3_malloc64()] is unable to allocate enough
-** memory to hold the resulting string.
-**
-** ^(The tdsqlite3_snprintf() routine is similar to "snprintf()" from
-** the standard C library.  The result is written into the
-** buffer supplied as the second parameter whose size is given by
-** the first parameter. Note that the order of the
-** first two parameters is reversed from snprintf().)^  This is an
-** historical accident that cannot be fixed without breaking
-** backwards compatibility.  ^(Note also that tdsqlite3_snprintf()
-** returns a pointer to its buffer instead of the number of
-** characters actually written into the buffer.)^  We admit that
-** the number of characters written would be a more useful return
-** value but we cannot change the implementation of tdsqlite3_snprintf()
-** now without breaking compatibility.
-**
-** ^As long as the buffer size is greater than zero, tdsqlite3_snprintf()
-** guarantees that the buffer is always zero-terminated.  ^The first
-** parameter "n" is the total size of the buffer, including space for
-** the zero terminator.  So the longest string that can be completely
-** written will be n-1 characters.
-**
-** ^The tdsqlite3_vsnprintf() routine is a varargs version of tdsqlite3_snprintf().
-**
-** See also:  [built-in printf()], [printf() SQL function]
-*/
-SQLITE_API char *tdsqlite3_mprintf(const char*,...);
-SQLITE_API char *tdsqlite3_vmprintf(const char*, va_list);
-SQLITE_API char *tdsqlite3_snprintf(int,char*,const char*, ...);
-SQLITE_API char *tdsqlite3_vsnprintf(int,char*,const char*, va_list);
-
-/*
-** CAPI3REF: Memory Allocation Subsystem
-**
-** The SQLite core uses these three routines for all of its own
-** internal memory allocation needs. "Core" in the previous sentence
-** does not include operating-system specific [VFS] implementation.  The
-** Windows VFS uses native malloc() and free() for some operations.
-**
-** ^The tdsqlite3_malloc() routine returns a pointer to a block
-** of memory at least N bytes in length, where N is the parameter.
-** ^If tdsqlite3_malloc() is unable to obtain sufficient free
-** memory, it returns a NULL pointer.  ^If the parameter N to
-** tdsqlite3_malloc() is zero or negative then tdsqlite3_malloc() returns
-** a NULL pointer.
-**
-** ^The tdsqlite3_malloc64(N) routine works just like
-** tdsqlite3_malloc(N) except that N is an unsigned 64-bit integer instead
-** of a signed 32-bit integer.
-**
-** ^Calling tdsqlite3_free() with a pointer previously returned
-** by tdsqlite3_malloc() or tdsqlite3_realloc() releases that memory so
-** that it might be reused.  ^The tdsqlite3_free() routine is
-** a no-op if is called with a NULL pointer.  Passing a NULL pointer
-** to tdsqlite3_free() is harmless.  After being freed, memory
-** should neither be read nor written.  Even reading previously freed
-** memory might result in a segmentation fault or other severe error.
-** Memory corruption, a segmentation fault, or other severe error
-** might result if tdsqlite3_free() is called with a non-NULL pointer that
-** was not obtained from tdsqlite3_malloc() or tdsqlite3_realloc().
-**
-** ^The tdsqlite3_realloc(X,N) interface attempts to resize a
-** prior memory allocation X to be at least N bytes.
-** ^If the X parameter to tdsqlite3_realloc(X,N)
-** is a NULL pointer then its behavior is identical to calling
-** tdsqlite3_malloc(N).
-** ^If the N parameter to tdsqlite3_realloc(X,N) is zero or
-** negative then the behavior is exactly the same as calling
-** tdsqlite3_free(X).
-** ^tdsqlite3_realloc(X,N) returns a pointer to a memory allocation
-** of at least N bytes in size or NULL if insufficient memory is available.
-** ^If M is the size of the prior allocation, then min(N,M) bytes
-** of the prior allocation are copied into the beginning of buffer returned
-** by tdsqlite3_realloc(X,N) and the prior allocation is freed.
-** ^If tdsqlite3_realloc(X,N) returns NULL and N is positive, then the
-** prior allocation is not freed.
-**
-** ^The tdsqlite3_realloc64(X,N) interfaces works the same as
-** tdsqlite3_realloc(X,N) except that N is a 64-bit unsigned integer instead
-** of a 32-bit signed integer.
-**
-** ^If X is a memory allocation previously obtained from tdsqlite3_malloc(),
-** tdsqlite3_malloc64(), tdsqlite3_realloc(), or tdsqlite3_realloc64(), then
-** tdsqlite3_msize(X) returns the size of that memory allocation in bytes.
-** ^The value returned by tdsqlite3_msize(X) might be larger than the number
-** of bytes requested when X was allocated.  ^If X is a NULL pointer then
-** tdsqlite3_msize(X) returns zero.  If X points to something that is not
-** the beginning of memory allocation, or if it points to a formerly
-** valid memory allocation that has now been freed, then the behavior
-** of tdsqlite3_msize(X) is undefined and possibly harmful.
-**
-** ^The memory returned by tdsqlite3_malloc(), tdsqlite3_realloc(),
-** tdsqlite3_malloc64(), and tdsqlite3_realloc64()
-** is always aligned to at least an 8 byte boundary, or to a
-** 4 byte boundary if the [SQLITE_4_BYTE_ALIGNED_MALLOC] compile-time
-** option is used.
-**
-** The pointer arguments to [tdsqlite3_free()] and [tdsqlite3_realloc()]
-** must be either NULL or else pointers obtained from a prior
-** invocation of [tdsqlite3_malloc()] or [tdsqlite3_realloc()] that have
-** not yet been released.
-**
-** The application must not read or write any part of
-** a block of memory after it has been released using
-** [tdsqlite3_free()] or [tdsqlite3_realloc()].
-*/
-SQLITE_API void *tdsqlite3_malloc(int);
-SQLITE_API void *tdsqlite3_malloc64(tdsqlite3_uint64);
-SQLITE_API void *tdsqlite3_realloc(void*, int);
-SQLITE_API void *tdsqlite3_realloc64(void*, tdsqlite3_uint64);
-SQLITE_API void tdsqlite3_free(void*);
-SQLITE_API tdsqlite3_uint64 tdsqlite3_msize(void*);
-
-/*
-** CAPI3REF: Memory Allocator Statistics
-**
-** SQLite provides these two interfaces for reporting on the status
-** of the [tdsqlite3_malloc()], [tdsqlite3_free()], and [tdsqlite3_realloc()]
-** routines, which form the built-in memory allocation subsystem.
-**
-** ^The [tdsqlite3_memory_used()] routine returns the number of bytes
-** of memory currently outstanding (malloced but not freed).
-** ^The [tdsqlite3_memory_highwater()] routine returns the maximum
-** value of [tdsqlite3_memory_used()] since the high-water mark
-** was last reset.  ^The values returned by [tdsqlite3_memory_used()] and
-** [tdsqlite3_memory_highwater()] include any overhead
-** added by SQLite in its implementation of [tdsqlite3_malloc()],
-** but not overhead added by the any underlying system library
-** routines that [tdsqlite3_malloc()] may call.
-**
-** ^The memory high-water mark is reset to the current value of
-** [tdsqlite3_memory_used()] if and only if the parameter to
-** [tdsqlite3_memory_highwater()] is true.  ^The value returned
-** by [tdsqlite3_memory_highwater(1)] is the high-water mark
-** prior to the reset.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_memory_used(void);
-SQLITE_API tdsqlite3_int64 tdsqlite3_memory_highwater(int resetFlag);
-
-/*
-** CAPI3REF: Pseudo-Random Number Generator
-**
-** SQLite contains a high-quality pseudo-random number generator (PRNG) used to
-** select random [ROWID | ROWIDs] when inserting new records into a table that
-** already uses the largest possible [ROWID].  The PRNG is also used for
-** the built-in random() and randomblob() SQL functions.  This interface allows
-** applications to access the same PRNG for other purposes.
-**
-** ^A call to this routine stores N bytes of randomness into buffer P.
-** ^The P parameter can be a NULL pointer.
-**
-** ^If this routine has not been previously called or if the previous
-** call had N less than one or a NULL pointer for P, then the PRNG is
-** seeded using randomness obtained from the xRandomness method of
-** the default [tdsqlite3_vfs] object.
-** ^If the previous call to this routine had an N of 1 or more and a
-** non-NULL P then the pseudo-randomness is generated
-** internally and without recourse to the [tdsqlite3_vfs] xRandomness
-** method.
-*/
-SQLITE_API void tdsqlite3_randomness(int N, void *P);
-
-/*
-** CAPI3REF: Compile-Time Authorization Callbacks
-** METHOD: tdsqlite3
-** KEYWORDS: {authorizer callback}
-**
-** ^This routine registers an authorizer callback with a particular
-** [database connection], supplied in the first argument.
-** ^The authorizer callback is invoked as SQL statements are being compiled
-** by [tdsqlite3_prepare()] or its variants [tdsqlite3_prepare_v2()],
-** [tdsqlite3_prepare_v3()], [tdsqlite3_prepare16()], [tdsqlite3_prepare16_v2()],
-** and [tdsqlite3_prepare16_v3()].  ^At various
-** points during the compilation process, as logic is being created
-** to perform various actions, the authorizer callback is invoked to
-** see if those actions are allowed.  ^The authorizer callback should
-** return [SQLITE_OK] to allow the action, [SQLITE_IGNORE] to disallow the
-** specific action but allow the SQL statement to continue to be
-** compiled, or [SQLITE_DENY] to cause the entire SQL statement to be
-** rejected with an error.  ^If the authorizer callback returns
-** any value other than [SQLITE_IGNORE], [SQLITE_OK], or [SQLITE_DENY]
-** then the [tdsqlite3_prepare_v2()] or equivalent call that triggered
-** the authorizer will fail with an error message.
-**
-** When the callback returns [SQLITE_OK], that means the operation
-** requested is ok.  ^When the callback returns [SQLITE_DENY], the
-** [tdsqlite3_prepare_v2()] or equivalent call that triggered the
-** authorizer will fail with an error message explaining that
-** access is denied. 
-**
-** ^The first parameter to the authorizer callback is a copy of the third
-** parameter to the tdsqlite3_set_authorizer() interface. ^The second parameter
-** to the callback is an integer [SQLITE_COPY | action code] that specifies
-** the particular action to be authorized. ^The third through sixth parameters
-** to the callback are either NULL pointers or zero-terminated strings
-** that contain additional details about the action to be authorized.
-** Applications must always be prepared to encounter a NULL pointer in any
-** of the third through the sixth parameters of the authorization callback.
-**
-** ^If the action code is [SQLITE_READ]
-** and the callback returns [SQLITE_IGNORE] then the
-** [prepared statement] statement is constructed to substitute
-** a NULL value in place of the table column that would have
-** been read if [SQLITE_OK] had been returned.  The [SQLITE_IGNORE]
-** return can be used to deny an untrusted user access to individual
-** columns of a table.
-** ^When a table is referenced by a [SELECT] but no column values are
-** extracted from that table (for example in a query like
-** "SELECT count(*) FROM tab") then the [SQLITE_READ] authorizer callback
-** is invoked once for that table with a column name that is an empty string.
-** ^If the action code is [SQLITE_DELETE] and the callback returns
-** [SQLITE_IGNORE] then the [DELETE] operation proceeds but the
-** [truncate optimization] is disabled and all rows are deleted individually.
-**
-** An authorizer is used when [tdsqlite3_prepare | preparing]
-** SQL statements from an untrusted source, to ensure that the SQL statements
-** do not try to access data they are not allowed to see, or that they do not
-** try to execute malicious statements that damage the database.  For
-** example, an application may allow a user to enter arbitrary
-** SQL queries for evaluation by a database.  But the application does
-** not want the user to be able to make arbitrary changes to the
-** database.  An authorizer could then be put in place while the
-** user-entered SQL is being [tdsqlite3_prepare | prepared] that
-** disallows everything except [SELECT] statements.
-**
-** Applications that need to process SQL from untrusted sources
-** might also consider lowering resource limits using [tdsqlite3_limit()]
-** and limiting database size using the [max_page_count] [PRAGMA]
-** in addition to using an authorizer.
-**
-** ^(Only a single authorizer can be in place on a database connection
-** at a time.  Each call to tdsqlite3_set_authorizer overrides the
-** previous call.)^  ^Disable the authorizer by installing a NULL callback.
-** The authorizer is disabled by default.
-**
-** The authorizer callback must not do anything that will modify
-** the database connection that invoked the authorizer callback.
-** Note that [tdsqlite3_prepare_v2()] and [tdsqlite3_step()] both modify their
-** database connections for the meaning of "modify" in this paragraph.
-**
-** ^When [tdsqlite3_prepare_v2()] is used to prepare a statement, the
-** statement might be re-prepared during [tdsqlite3_step()] due to a 
-** schema change.  Hence, the application should ensure that the
-** correct authorizer callback remains in place during the [tdsqlite3_step()].
-**
-** ^Note that the authorizer callback is invoked only during
-** [tdsqlite3_prepare()] or its variants.  Authorization is not
-** performed during statement evaluation in [tdsqlite3_step()], unless
-** as stated in the previous paragraph, tdsqlite3_step() invokes
-** tdsqlite3_prepare_v2() to reprepare a statement after a schema change.
-*/
-SQLITE_API int tdsqlite3_set_authorizer(
-  tdsqlite3*,
-  int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
-  void *pUserData
-);
-
-/*
-** CAPI3REF: Authorizer Return Codes
-**
-** The [tdsqlite3_set_authorizer | authorizer callback function] must
-** return either [SQLITE_OK] or one of these two constants in order
-** to signal SQLite whether or not the action is permitted.  See the
-** [tdsqlite3_set_authorizer | authorizer documentation] for additional
-** information.
-**
-** Note that SQLITE_IGNORE is also used as a [conflict resolution mode]
-** returned from the [tdsqlite3_vtab_on_conflict()] interface.
-*/
-#define SQLITE_DENY   1   /* Abort the SQL statement with an error */
-#define SQLITE_IGNORE 2   /* Don't allow access, but don't generate an error */
-
-/*
-** CAPI3REF: Authorizer Action Codes
-**
-** The [tdsqlite3_set_authorizer()] interface registers a callback function
-** that is invoked to authorize certain SQL statement actions.  The
-** second parameter to the callback is an integer code that specifies
-** what action is being authorized.  These are the integer action codes that
-** the authorizer callback may be passed.
-**
-** These action code values signify what kind of operation is to be
-** authorized.  The 3rd and 4th parameters to the authorization
-** callback function will be parameters or NULL depending on which of these
-** codes is used as the second parameter.  ^(The 5th parameter to the
-** authorizer callback is the name of the database ("main", "temp",
-** etc.) if applicable.)^  ^The 6th parameter to the authorizer callback
-** is the name of the inner-most trigger or view that is responsible for
-** the access attempt or NULL if this access attempt is directly from
-** top-level SQL code.
-*/
-/******************************************* 3rd ************ 4th ***********/
-#define SQLITE_CREATE_INDEX          1   /* Index Name      Table Name      */
-#define SQLITE_CREATE_TABLE          2   /* Table Name      NULL            */
-#define SQLITE_CREATE_TEMP_INDEX     3   /* Index Name      Table Name      */
-#define SQLITE_CREATE_TEMP_TABLE     4   /* Table Name      NULL            */
-#define SQLITE_CREATE_TEMP_TRIGGER   5   /* Trigger Name    Table Name      */
-#define SQLITE_CREATE_TEMP_VIEW      6   /* View Name       NULL            */
-#define SQLITE_CREATE_TRIGGER        7   /* Trigger Name    Table Name      */
-#define SQLITE_CREATE_VIEW           8   /* View Name       NULL            */
-#define SQLITE_DELETE                9   /* Table Name      NULL            */
-#define SQLITE_DROP_INDEX           10   /* Index Name      Table Name      */
-#define SQLITE_DROP_TABLE           11   /* Table Name      NULL            */
-#define SQLITE_DROP_TEMP_INDEX      12   /* Index Name      Table Name      */
-#define SQLITE_DROP_TEMP_TABLE      13   /* Table Name      NULL            */
-#define SQLITE_DROP_TEMP_TRIGGER    14   /* Trigger Name    Table Name      */
-#define SQLITE_DROP_TEMP_VIEW       15   /* View Name       NULL            */
-#define SQLITE_DROP_TRIGGER         16   /* Trigger Name    Table Name      */
-#define SQLITE_DROP_VIEW            17   /* View Name       NULL            */
-#define SQLITE_INSERT               18   /* Table Name      NULL            */
-#define SQLITE_PRAGMA               19   /* Pragma Name     1st arg or NULL */
-#define SQLITE_READ                 20   /* Table Name      Column Name     */
-#define SQLITE_SELECT               21   /* NULL            NULL            */
-#define SQLITE_TRANSACTION          22   /* Operation       NULL            */
-#define SQLITE_UPDATE               23   /* Table Name      Column Name     */
-#define SQLITE_ATTACH               24   /* Filename        NULL            */
-#define SQLITE_DETACH               25   /* Database Name   NULL            */
-#define SQLITE_ALTER_TABLE          26   /* Database Name   Table Name      */
-#define SQLITE_REINDEX              27   /* Index Name      NULL            */
-#define SQLITE_ANALYZE              28   /* Table Name      NULL            */
-#define SQLITE_CREATE_VTABLE        29   /* Table Name      Module Name     */
-#define SQLITE_DROP_VTABLE          30   /* Table Name      Module Name     */
-#define SQLITE_FUNCTION             31   /* NULL            Function Name   */
-#define SQLITE_SAVEPOINT            32   /* Operation       Savepoint Name  */
-#define SQLITE_COPY                  0   /* No longer used */
-#define SQLITE_RECURSIVE            33   /* NULL            NULL            */
-
-/*
-** CAPI3REF: Tracing And Profiling Functions
-** METHOD: tdsqlite3
-**
-** These routines are deprecated. Use the [tdsqlite3_trace_v2()] interface
-** instead of the routines described here.
-**
-** These routines register callback functions that can be used for
-** tracing and profiling the execution of SQL statements.
-**
-** ^The callback function registered by tdsqlite3_trace() is invoked at
-** various times when an SQL statement is being run by [tdsqlite3_step()].
-** ^The tdsqlite3_trace() callback is invoked with a UTF-8 rendering of the
-** SQL statement text as the statement first begins executing.
-** ^(Additional tdsqlite3_trace() callbacks might occur
-** as each triggered subprogram is entered.  The callbacks for triggers
-** contain a UTF-8 SQL comment that identifies the trigger.)^
-**
-** The [SQLITE_TRACE_SIZE_LIMIT] compile-time option can be used to limit
-** the length of [bound parameter] expansion in the output of tdsqlite3_trace().
-**
-** ^The callback function registered by tdsqlite3_profile() is invoked
-** as each SQL statement finishes.  ^The profile callback contains
-** the original statement text and an estimate of wall-clock time
-** of how long that statement took to run.  ^The profile callback
-** time is in units of nanoseconds, however the current implementation
-** is only capable of millisecond resolution so the six least significant
-** digits in the time are meaningless.  Future versions of SQLite
-** might provide greater resolution on the profiler callback.  Invoking
-** either [tdsqlite3_trace()] or [tdsqlite3_trace_v2()] will cancel the
-** profile callback.
-*/
-SQLITE_API SQLITE_DEPRECATED void *tdsqlite3_trace(tdsqlite3*,
-   void(*xTrace)(void*,const char*), void*);
-SQLITE_API SQLITE_DEPRECATED void *tdsqlite3_profile(tdsqlite3*,
-   void(*xProfile)(void*,const char*,tdsqlite3_uint64), void*);
-
-/*
-** CAPI3REF: SQL Trace Event Codes
-** KEYWORDS: SQLITE_TRACE
-**
-** These constants identify classes of events that can be monitored
-** using the [tdsqlite3_trace_v2()] tracing logic.  The M argument
-** to [tdsqlite3_trace_v2(D,M,X,P)] is an OR-ed combination of one or more of
-** the following constants.  ^The first argument to the trace callback
-** is one of the following constants.
-**
-** New tracing constants may be added in future releases.
-**
-** ^A trace callback has four arguments: xCallback(T,C,P,X).
-** ^The T argument is one of the integer type codes above.
-** ^The C argument is a copy of the context pointer passed in as the
-** fourth argument to [tdsqlite3_trace_v2()].
-** The P and X arguments are pointers whose meanings depend on T.
-**
-** <dl>
-** [[SQLITE_TRACE_STMT]] <dt>SQLITE_TRACE_STMT</dt>
-** <dd>^An SQLITE_TRACE_STMT callback is invoked when a prepared statement
-** first begins running and possibly at other times during the
-** execution of the prepared statement, such as at the start of each
-** trigger subprogram. ^The P argument is a pointer to the
-** [prepared statement]. ^The X argument is a pointer to a string which
-** is the unexpanded SQL text of the prepared statement or an SQL comment 
-** that indicates the invocation of a trigger.  ^The callback can compute
-** the same text that would have been returned by the legacy [tdsqlite3_trace()]
-** interface by using the X argument when X begins with "--" and invoking
-** [tdsqlite3_expanded_sql(P)] otherwise.
-**
-** [[SQLITE_TRACE_PROFILE]] <dt>SQLITE_TRACE_PROFILE</dt>
-** <dd>^An SQLITE_TRACE_PROFILE callback provides approximately the same
-** information as is provided by the [tdsqlite3_profile()] callback.
-** ^The P argument is a pointer to the [prepared statement] and the
-** X argument points to a 64-bit integer which is the estimated of
-** the number of nanosecond that the prepared statement took to run.
-** ^The SQLITE_TRACE_PROFILE callback is invoked when the statement finishes.
-**
-** [[SQLITE_TRACE_ROW]] <dt>SQLITE_TRACE_ROW</dt>
-** <dd>^An SQLITE_TRACE_ROW callback is invoked whenever a prepared
-** statement generates a single row of result.  
-** ^The P argument is a pointer to the [prepared statement] and the
-** X argument is unused.
-**
-** [[SQLITE_TRACE_CLOSE]] <dt>SQLITE_TRACE_CLOSE</dt>
-** <dd>^An SQLITE_TRACE_CLOSE callback is invoked when a database
-** connection closes.
-** ^The P argument is a pointer to the [database connection] object
-** and the X argument is unused.
-** </dl>
-*/
-#define SQLITE_TRACE_STMT       0x01
-#define SQLITE_TRACE_PROFILE    0x02
-#define SQLITE_TRACE_ROW        0x04
-#define SQLITE_TRACE_CLOSE      0x08
-
-/*
-** CAPI3REF: SQL Trace Hook
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_trace_v2(D,M,X,P) interface registers a trace callback
-** function X against [database connection] D, using property mask M
-** and context pointer P.  ^If the X callback is
-** NULL or if the M mask is zero, then tracing is disabled.  The
-** M argument should be the bitwise OR-ed combination of
-** zero or more [SQLITE_TRACE] constants.
-**
-** ^Each call to either tdsqlite3_trace() or tdsqlite3_trace_v2() overrides 
-** (cancels) any prior calls to tdsqlite3_trace() or tdsqlite3_trace_v2().
-**
-** ^The X callback is invoked whenever any of the events identified by 
-** mask M occur.  ^The integer return value from the callback is currently
-** ignored, though this may change in future releases.  Callback
-** implementations should return zero to ensure future compatibility.
-**
-** ^A trace callback is invoked with four arguments: callback(T,C,P,X).
-** ^The T argument is one of the [SQLITE_TRACE]
-** constants to indicate why the callback was invoked.
-** ^The C argument is a copy of the context pointer.
-** The P and X arguments are pointers whose meanings depend on T.
-**
-** The tdsqlite3_trace_v2() interface is intended to replace the legacy
-** interfaces [tdsqlite3_trace()] and [tdsqlite3_profile()], both of which
-** are deprecated.
-*/
-SQLITE_API int tdsqlite3_trace_v2(
-  tdsqlite3*,
-  unsigned uMask,
-  int(*xCallback)(unsigned,void*,void*,void*),
-  void *pCtx
-);
-
-/*
-** CAPI3REF: Query Progress Callbacks
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_progress_handler(D,N,X,P) interface causes the callback
-** function X to be invoked periodically during long running calls to
-** [tdsqlite3_exec()], [tdsqlite3_step()] and [tdsqlite3_get_table()] for
-** database connection D.  An example use for this
-** interface is to keep a GUI updated during a large query.
-**
-** ^The parameter P is passed through as the only parameter to the 
-** callback function X.  ^The parameter N is the approximate number of 
-** [virtual machine instructions] that are evaluated between successive
-** invocations of the callback X.  ^If N is less than one then the progress
-** handler is disabled.
-**
-** ^Only a single progress handler may be defined at one time per
-** [database connection]; setting a new progress handler cancels the
-** old one.  ^Setting parameter X to NULL disables the progress handler.
-** ^The progress handler is also disabled by setting N to a value less
-** than 1.
-**
-** ^If the progress callback returns non-zero, the operation is
-** interrupted.  This feature can be used to implement a
-** "Cancel" button on a GUI progress dialog box.
-**
-** The progress handler callback must not do anything that will modify
-** the database connection that invoked the progress handler.
-** Note that [tdsqlite3_prepare_v2()] and [tdsqlite3_step()] both modify their
-** database connections for the meaning of "modify" in this paragraph.
-**
-*/
-SQLITE_API void tdsqlite3_progress_handler(tdsqlite3*, int, int(*)(void*), void*);
-
-/*
-** CAPI3REF: Opening A New Database Connection
-** CONSTRUCTOR: tdsqlite3
-**
-** ^These routines open an SQLite database file as specified by the 
-** filename argument. ^The filename argument is interpreted as UTF-8 for
-** tdsqlite3_open() and tdsqlite3_open_v2() and as UTF-16 in the native byte
-** order for tdsqlite3_open16(). ^(A [database connection] handle is usually
-** returned in *ppDb, even if an error occurs.  The only exception is that
-** if SQLite is unable to allocate memory to hold the [tdsqlite3] object,
-** a NULL will be written into *ppDb instead of a pointer to the [tdsqlite3]
-** object.)^ ^(If the database is opened (and/or created) successfully, then
-** [SQLITE_OK] is returned.  Otherwise an [error code] is returned.)^ ^The
-** [tdsqlite3_errmsg()] or [tdsqlite3_errmsg16()] routines can be used to obtain
-** an English language description of the error following a failure of any
-** of the tdsqlite3_open() routines.
-**
-** ^The default encoding will be UTF-8 for databases created using
-** tdsqlite3_open() or tdsqlite3_open_v2().  ^The default encoding for databases
-** created using tdsqlite3_open16() will be UTF-16 in the native byte order.
-**
-** Whether or not an error occurs when it is opened, resources
-** associated with the [database connection] handle should be released by
-** passing it to [tdsqlite3_close()] when it is no longer required.
-**
-** The tdsqlite3_open_v2() interface works like tdsqlite3_open()
-** except that it accepts two additional parameters for additional control
-** over the new database connection.  ^(The flags parameter to
-** tdsqlite3_open_v2() must include, at a minimum, one of the following
-** three flag combinations:)^
-**
-** <dl>
-** ^(<dt>[SQLITE_OPEN_READONLY]</dt>
-** <dd>The database is opened in read-only mode.  If the database does not
-** already exist, an error is returned.</dd>)^
-**
-** ^(<dt>[SQLITE_OPEN_READWRITE]</dt>
-** <dd>The database is opened for reading and writing if possible, or reading
-** only if the file is write protected by the operating system.  In either
-** case the database must already exist, otherwise an error is returned.</dd>)^
-**
-** ^(<dt>[SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]</dt>
-** <dd>The database is opened for reading and writing, and is created if
-** it does not already exist. This is the behavior that is always used for
-** tdsqlite3_open() and tdsqlite3_open16().</dd>)^
-** </dl>
-**
-** In addition to the required flags, the following optional flags are
-** also supported:
-**
-** <dl>
-** ^(<dt>[SQLITE_OPEN_URI]</dt>
-** <dd>The filename can be interpreted as a URI if this flag is set.</dd>)^
-**
-** ^(<dt>[SQLITE_OPEN_MEMORY]</dt>
-** <dd>The database will be opened as an in-memory database.  The database
-** is named by the "filename" argument for the purposes of cache-sharing,
-** if shared cache mode is enabled, but the "filename" is otherwise ignored.
-** </dd>)^
-**
-** ^(<dt>[SQLITE_OPEN_NOMUTEX]</dt>
-** <dd>The new database connection will use the "multi-thread"
-** [threading mode].)^  This means that separate threads are allowed
-** to use SQLite at the same time, as long as each thread is using
-** a different [database connection].
-**
-** ^(<dt>[SQLITE_OPEN_FULLMUTEX]</dt>
-** <dd>The new database connection will use the "serialized"
-** [threading mode].)^  This means the multiple threads can safely
-** attempt to use the same database connection at the same time.
-** (Mutexes will block any actual concurrency, but in this mode
-** there is no harm in trying.)
-**
-** ^(<dt>[SQLITE_OPEN_SHAREDCACHE]</dt>
-** <dd>The database is opened [shared cache] enabled, overriding
-** the default shared cache setting provided by
-** [tdsqlite3_enable_shared_cache()].)^
-**
-** ^(<dt>[SQLITE_OPEN_PRIVATECACHE]</dt>
-** <dd>The database is opened [shared cache] disabled, overriding
-** the default shared cache setting provided by
-** [tdsqlite3_enable_shared_cache()].)^
-**
-** [[OPEN_NOFOLLOW]] ^(<dt>[SQLITE_OPEN_NOFOLLOW]</dt>
-** <dd>The database filename is not allowed to be a symbolic link</dd>
-** </dl>)^
-**
-** If the 3rd parameter to tdsqlite3_open_v2() is not one of the
-** required combinations shown above optionally combined with other
-** [SQLITE_OPEN_READONLY | SQLITE_OPEN_* bits]
-** then the behavior is undefined.
-**
-** ^The fourth parameter to tdsqlite3_open_v2() is the name of the
-** [tdsqlite3_vfs] object that defines the operating system interface that
-** the new database connection should use.  ^If the fourth parameter is
-** a NULL pointer then the default [tdsqlite3_vfs] object is used.
-**
-** ^If the filename is ":memory:", then a private, temporary in-memory database
-** is created for the connection.  ^This in-memory database will vanish when
-** the database connection is closed.  Future versions of SQLite might
-** make use of additional special filenames that begin with the ":" character.
-** It is recommended that when a database filename actually does begin with
-** a ":" character you should prefix the filename with a pathname such as
-** "./" to avoid ambiguity.
-**
-** ^If the filename is an empty string, then a private, temporary
-** on-disk database will be created.  ^This private database will be
-** automatically deleted as soon as the database connection is closed.
-**
-** [[URI filenames in tdsqlite3_open()]] <h3>URI Filenames</h3>
-**
-** ^If [URI filename] interpretation is enabled, and the filename argument
-** begins with "file:", then the filename is interpreted as a URI. ^URI
-** filename interpretation is enabled if the [SQLITE_OPEN_URI] flag is
-** set in the third argument to tdsqlite3_open_v2(), or if it has
-** been enabled globally using the [SQLITE_CONFIG_URI] option with the
-** [tdsqlite3_config()] method or by the [SQLITE_USE_URI] compile-time option.
-** URI filename interpretation is turned off
-** by default, but future releases of SQLite might enable URI filename
-** interpretation by default.  See "[URI filenames]" for additional
-** information.
-**
-** URI filenames are parsed according to RFC 3986. ^If the URI contains an
-** authority, then it must be either an empty string or the string 
-** "localhost". ^If the authority is not an empty string or "localhost", an 
-** error is returned to the caller. ^The fragment component of a URI, if 
-** present, is ignored.
-**
-** ^SQLite uses the path component of the URI as the name of the disk file
-** which contains the database. ^If the path begins with a '/' character, 
-** then it is interpreted as an absolute path. ^If the path does not begin 
-** with a '/' (meaning that the authority section is omitted from the URI)
-** then the path is interpreted as a relative path. 
-** ^(On windows, the first component of an absolute path 
-** is a drive specification (e.g. "C:").)^
-**
-** [[core URI query parameters]]
-** The query component of a URI may contain parameters that are interpreted
-** either by SQLite itself, or by a [VFS | custom VFS implementation].
-** SQLite and its built-in [VFSes] interpret the
-** following query parameters:
-**
-** <ul>
-**   <li> <b>vfs</b>: ^The "vfs" parameter may be used to specify the name of
-**     a VFS object that provides the operating system interface that should
-**     be used to access the database file on disk. ^If this option is set to
-**     an empty string the default VFS object is used. ^Specifying an unknown
-**     VFS is an error. ^If tdsqlite3_open_v2() is used and the vfs option is
-**     present, then the VFS specified by the option takes precedence over
-**     the value passed as the fourth parameter to tdsqlite3_open_v2().
-**
-**   <li> <b>mode</b>: ^(The mode parameter may be set to either "ro", "rw",
-**     "rwc", or "memory". Attempting to set it to any other value is
-**     an error)^. 
-**     ^If "ro" is specified, then the database is opened for read-only 
-**     access, just as if the [SQLITE_OPEN_READONLY] flag had been set in the 
-**     third argument to tdsqlite3_open_v2(). ^If the mode option is set to 
-**     "rw", then the database is opened for read-write (but not create) 
-**     access, as if SQLITE_OPEN_READWRITE (but not SQLITE_OPEN_CREATE) had 
-**     been set. ^Value "rwc" is equivalent to setting both 
-**     SQLITE_OPEN_READWRITE and SQLITE_OPEN_CREATE.  ^If the mode option is
-**     set to "memory" then a pure [in-memory database] that never reads
-**     or writes from disk is used. ^It is an error to specify a value for
-**     the mode parameter that is less restrictive than that specified by
-**     the flags passed in the third parameter to tdsqlite3_open_v2().
-**
-**   <li> <b>cache</b>: ^The cache parameter may be set to either "shared" or
-**     "private". ^Setting it to "shared" is equivalent to setting the
-**     SQLITE_OPEN_SHAREDCACHE bit in the flags argument passed to
-**     tdsqlite3_open_v2(). ^Setting the cache parameter to "private" is 
-**     equivalent to setting the SQLITE_OPEN_PRIVATECACHE bit.
-**     ^If tdsqlite3_open_v2() is used and the "cache" parameter is present in
-**     a URI filename, its value overrides any behavior requested by setting
-**     SQLITE_OPEN_PRIVATECACHE or SQLITE_OPEN_SHAREDCACHE flag.
-**
-**  <li> <b>psow</b>: ^The psow parameter indicates whether or not the
-**     [powersafe overwrite] property does or does not apply to the
-**     storage media on which the database file resides.
-**
-**  <li> <b>nolock</b>: ^The nolock parameter is a boolean query parameter
-**     which if set disables file locking in rollback journal modes.  This
-**     is useful for accessing a database on a filesystem that does not
-**     support locking.  Caution:  Database corruption might result if two
-**     or more processes write to the same database and any one of those
-**     processes uses nolock=1.
-**
-**  <li> <b>immutable</b>: ^The immutable parameter is a boolean query
-**     parameter that indicates that the database file is stored on
-**     read-only media.  ^When immutable is set, SQLite assumes that the
-**     database file cannot be changed, even by a process with higher
-**     privilege, and so the database is opened read-only and all locking
-**     and change detection is disabled.  Caution: Setting the immutable
-**     property on a database file that does in fact change can result
-**     in incorrect query results and/or [SQLITE_CORRUPT] errors.
-**     See also: [SQLITE_IOCAP_IMMUTABLE].
-**       
-** </ul>
-**
-** ^Specifying an unknown parameter in the query component of a URI is not an
-** error.  Future versions of SQLite might understand additional query
-** parameters.  See "[query parameters with special meaning to SQLite]" for
-** additional information.
-**
-** [[URI filename examples]] <h3>URI filename examples</h3>
-**
-** <table border="1" align=center cellpadding=5>
-** <tr><th> URI filenames <th> Results
-** <tr><td> file:data.db <td> 
-**          Open the file "data.db" in the current directory.
-** <tr><td> file:/home/fred/data.db<br>
-**          file:///home/fred/data.db <br> 
-**          file://localhost/home/fred/data.db <br> <td> 
-**          Open the database file "/home/fred/data.db".
-** <tr><td> file://darkstar/home/fred/data.db <td> 
-**          An error. "darkstar" is not a recognized authority.
-** <tr><td style="white-space:nowrap"> 
-**          file:///C:/Documents%20and%20Settings/fred/Desktop/data.db
-**     <td> Windows only: Open the file "data.db" on fred's desktop on drive
-**          C:. Note that the %20 escaping in this example is not strictly 
-**          necessary - space characters can be used literally
-**          in URI filenames.
-** <tr><td> file:data.db?mode=ro&cache=private <td> 
-**          Open file "data.db" in the current directory for read-only access.
-**          Regardless of whether or not shared-cache mode is enabled by
-**          default, use a private cache.
-** <tr><td> file:/home/fred/data.db?vfs=unix-dotfile <td>
-**          Open file "/home/fred/data.db". Use the special VFS "unix-dotfile"
-**          that uses dot-files in place of posix advisory locking.
-** <tr><td> file:data.db?mode=readonly <td> 
-**          An error. "readonly" is not a valid option for the "mode" parameter.
-** </table>
-**
-** ^URI hexadecimal escape sequences (%HH) are supported within the path and
-** query components of a URI. A hexadecimal escape sequence consists of a
-** percent sign - "%" - followed by exactly two hexadecimal digits 
-** specifying an octet value. ^Before the path or query components of a
-** URI filename are interpreted, they are encoded using UTF-8 and all 
-** hexadecimal escape sequences replaced by a single byte containing the
-** corresponding octet. If this process generates an invalid UTF-8 encoding,
-** the results are undefined.
-**
-** <b>Note to Windows users:</b>  The encoding used for the filename argument
-** of tdsqlite3_open() and tdsqlite3_open_v2() must be UTF-8, not whatever
-** codepage is currently defined.  Filenames containing international
-** characters must be converted to UTF-8 prior to passing them into
-** tdsqlite3_open() or tdsqlite3_open_v2().
-**
-** <b>Note to Windows Runtime users:</b>  The temporary directory must be set
-** prior to calling tdsqlite3_open() or tdsqlite3_open_v2().  Otherwise, various
-** features that require the use of temporary files may fail.
-**
-** See also: [tdsqlite3_temp_directory]
-*/
-SQLITE_API int tdsqlite3_open(
-  const char *filename,   /* Database filename (UTF-8) */
-  tdsqlite3 **ppDb          /* OUT: SQLite db handle */
-);
-SQLITE_API int tdsqlite3_open16(
-  const void *filename,   /* Database filename (UTF-16) */
-  tdsqlite3 **ppDb          /* OUT: SQLite db handle */
-);
-SQLITE_API int tdsqlite3_open_v2(
-  const char *filename,   /* Database filename (UTF-8) */
-  tdsqlite3 **ppDb,         /* OUT: SQLite db handle */
-  int flags,              /* Flags */
-  const char *zVfs        /* Name of VFS module to use */
-);
-
-/*
-** CAPI3REF: Obtain Values For URI Parameters
-**
-** These are utility routines, useful to [VFS|custom VFS implementations],
-** that check if a database file was a URI that contained a specific query 
-** parameter, and if so obtains the value of that query parameter.
-**
-** If F is the database filename pointer passed into the xOpen() method of 
-** a VFS implementation or it is the return value of [tdsqlite3_db_filename()]
-** and if P is the name of the query parameter, then
-** tdsqlite3_uri_parameter(F,P) returns the value of the P
-** parameter if it exists or a NULL pointer if P does not appear as a 
-** query parameter on F.  If P is a query parameter of F and it
-** has no explicit value, then tdsqlite3_uri_parameter(F,P) returns
-** a pointer to an empty string.
-**
-** The tdsqlite3_uri_boolean(F,P,B) routine assumes that P is a boolean
-** parameter and returns true (1) or false (0) according to the value
-** of P.  The tdsqlite3_uri_boolean(F,P,B) routine returns true (1) if the
-** value of query parameter P is one of "yes", "true", or "on" in any
-** case or if the value begins with a non-zero number.  The 
-** tdsqlite3_uri_boolean(F,P,B) routines returns false (0) if the value of
-** query parameter P is one of "no", "false", or "off" in any case or
-** if the value begins with a numeric zero.  If P is not a query
-** parameter on F or if the value of P does not match any of the
-** above, then tdsqlite3_uri_boolean(F,P,B) returns (B!=0).
-**
-** The tdsqlite3_uri_int64(F,P,D) routine converts the value of P into a
-** 64-bit signed integer and returns that integer, or D if P does not
-** exist.  If the value of P is something other than an integer, then
-** zero is returned.
-**
-** The tdsqlite3_uri_key(F,N) returns a pointer to the name (not
-** the value) of the N-th query parameter for filename F, or a NULL
-** pointer if N is less than zero or greater than the number of query
-** parameters minus 1.  The N value is zero-based so N should be 0 to obtain
-** the name of the first query parameter, 1 for the second parameter, and
-** so forth.
-** 
-** If F is a NULL pointer, then tdsqlite3_uri_parameter(F,P) returns NULL and
-** tdsqlite3_uri_boolean(F,P,B) returns B.  If F is not a NULL pointer and
-** is not a database file pathname pointer that the SQLite core passed
-** into the xOpen VFS method, then the behavior of this routine is undefined
-** and probably undesirable.
-**
-** Beginning with SQLite [version 3.31.0] ([dateof:3.31.0]) the input F
-** parameter can also be the name of a rollback journal file or WAL file
-** in addition to the main database file.  Prior to version 3.31.0, these
-** routines would only work if F was the name of the main database file.
-** When the F parameter is the name of the rollback journal or WAL file,
-** it has access to all the same query parameters as were found on the
-** main database file.
-**
-** See the [URI filename] documentation for additional information.
-*/
-SQLITE_API const char *tdsqlite3_uri_parameter(const char *zFilename, const char *zParam);
-SQLITE_API int tdsqlite3_uri_boolean(const char *zFile, const char *zParam, int bDefault);
-SQLITE_API tdsqlite3_int64 tdsqlite3_uri_int64(const char*, const char*, tdsqlite3_int64);
-SQLITE_API const char *tdsqlite3_uri_key(const char *zFilename, int N);
-
-/*
-** CAPI3REF:  Translate filenames
-**
-** These routines are available to [VFS|custom VFS implementations] for
-** translating filenames between the main database file, the journal file,
-** and the WAL file.
-**
-** If F is the name of an sqlite database file, journal file, or WAL file
-** passed by the SQLite core into the VFS, then tdsqlite3_filename_database(F)
-** returns the name of the corresponding database file.
-**
-** If F is the name of an sqlite database file, journal file, or WAL file
-** passed by the SQLite core into the VFS, or if F is a database filename
-** obtained from [tdsqlite3_db_filename()], then tdsqlite3_filename_journal(F)
-** returns the name of the corresponding rollback journal file.
-**
-** If F is the name of an sqlite database file, journal file, or WAL file
-** that was passed by the SQLite core into the VFS, or if F is a database
-** filename obtained from [tdsqlite3_db_filename()], then
-** tdsqlite3_filename_wal(F) returns the name of the corresponding
-** WAL file.
-**
-** In all of the above, if F is not the name of a database, journal or WAL
-** filename passed into the VFS from the SQLite core and F is not the
-** return value from [tdsqlite3_db_filename()], then the result is
-** undefined and is likely a memory access violation.
-*/
-SQLITE_API const char *tdsqlite3_filename_database(const char*);
-SQLITE_API const char *tdsqlite3_filename_journal(const char*);
-SQLITE_API const char *tdsqlite3_filename_wal(const char*);
-
-
-/*
-** CAPI3REF: Error Codes And Messages
-** METHOD: tdsqlite3
-**
-** ^If the most recent tdsqlite3_* API call associated with 
-** [database connection] D failed, then the tdsqlite3_errcode(D) interface
-** returns the numeric [result code] or [extended result code] for that
-** API call.
-** ^The tdsqlite3_extended_errcode()
-** interface is the same except that it always returns the 
-** [extended result code] even when extended result codes are
-** disabled.
-**
-** The values returned by tdsqlite3_errcode() and/or
-** tdsqlite3_extended_errcode() might change with each API call.
-** Except, there are some interfaces that are guaranteed to never
-** change the value of the error code.  The error-code preserving
-** interfaces are:
-**
-** <ul>
-** <li> tdsqlite3_errcode()
-** <li> tdsqlite3_extended_errcode()
-** <li> tdsqlite3_errmsg()
-** <li> tdsqlite3_errmsg16()
-** </ul>
-**
-** ^The tdsqlite3_errmsg() and tdsqlite3_errmsg16() return English-language
-** text that describes the error, as either UTF-8 or UTF-16 respectively.
-** ^(Memory to hold the error message string is managed internally.
-** The application does not need to worry about freeing the result.
-** However, the error string might be overwritten or deallocated by
-** subsequent calls to other SQLite interface functions.)^
-**
-** ^The tdsqlite3_errstr() interface returns the English-language text
-** that describes the [result code], as UTF-8.
-** ^(Memory to hold the error message string is managed internally
-** and must not be freed by the application)^.
-**
-** When the serialized [threading mode] is in use, it might be the
-** case that a second error occurs on a separate thread in between
-** the time of the first error and the call to these interfaces.
-** When that happens, the second error will be reported since these
-** interfaces always report the most recent result.  To avoid
-** this, each thread can obtain exclusive use of the [database connection] D
-** by invoking [tdsqlite3_mutex_enter]([tdsqlite3_db_mutex](D)) before beginning
-** to use D and invoking [tdsqlite3_mutex_leave]([tdsqlite3_db_mutex](D)) after
-** all calls to the interfaces listed here are completed.
-**
-** If an interface fails with SQLITE_MISUSE, that means the interface
-** was invoked incorrectly by the application.  In that case, the
-** error code and message may or may not be set.
-*/
-SQLITE_API int tdsqlite3_errcode(tdsqlite3 *db);
-SQLITE_API int tdsqlite3_extended_errcode(tdsqlite3 *db);
-SQLITE_API const char *tdsqlite3_errmsg(tdsqlite3*);
-SQLITE_API const void *tdsqlite3_errmsg16(tdsqlite3*);
-SQLITE_API const char *tdsqlite3_errstr(int);
-
-/*
-** CAPI3REF: Prepared Statement Object
-** KEYWORDS: {prepared statement} {prepared statements}
-**
-** An instance of this object represents a single SQL statement that
-** has been compiled into binary form and is ready to be evaluated.
-**
-** Think of each SQL statement as a separate computer program.  The
-** original SQL text is source code.  A prepared statement object 
-** is the compiled object code.  All SQL must be converted into a
-** prepared statement before it can be run.
-**
-** The life-cycle of a prepared statement object usually goes like this:
-**
-** <ol>
-** <li> Create the prepared statement object using [tdsqlite3_prepare_v2()].
-** <li> Bind values to [parameters] using the tdsqlite3_bind_*()
-**      interfaces.
-** <li> Run the SQL by calling [tdsqlite3_step()] one or more times.
-** <li> Reset the prepared statement using [tdsqlite3_reset()] then go back
-**      to step 2.  Do this zero or more times.
-** <li> Destroy the object using [tdsqlite3_finalize()].
-** </ol>
-*/
-typedef struct tdsqlite3_stmt tdsqlite3_stmt;
-
-/*
-** CAPI3REF: Run-time Limits
-** METHOD: tdsqlite3
-**
-** ^(This interface allows the size of various constructs to be limited
-** on a connection by connection basis.  The first parameter is the
-** [database connection] whose limit is to be set or queried.  The
-** second parameter is one of the [limit categories] that define a
-** class of constructs to be size limited.  The third parameter is the
-** new limit for that construct.)^
-**
-** ^If the new limit is a negative number, the limit is unchanged.
-** ^(For each limit category SQLITE_LIMIT_<i>NAME</i> there is a 
-** [limits | hard upper bound]
-** set at compile-time by a C preprocessor macro called
-** [limits | SQLITE_MAX_<i>NAME</i>].
-** (The "_LIMIT_" in the name is changed to "_MAX_".))^
-** ^Attempts to increase a limit above its hard upper bound are
-** silently truncated to the hard upper bound.
-**
-** ^Regardless of whether or not the limit was changed, the 
-** [tdsqlite3_limit()] interface returns the prior value of the limit.
-** ^Hence, to find the current value of a limit without changing it,
-** simply invoke this interface with the third parameter set to -1.
-**
-** Run-time limits are intended for use in applications that manage
-** both their own internal database and also databases that are controlled
-** by untrusted external sources.  An example application might be a
-** web browser that has its own databases for storing history and
-** separate databases controlled by JavaScript applications downloaded
-** off the Internet.  The internal databases can be given the
-** large, default limits.  Databases managed by external sources can
-** be given much smaller limits designed to prevent a denial of service
-** attack.  Developers might also want to use the [tdsqlite3_set_authorizer()]
-** interface to further control untrusted SQL.  The size of the database
-** created by an untrusted script can be contained using the
-** [max_page_count] [PRAGMA].
-**
-** New run-time limit categories may be added in future releases.
-*/
-SQLITE_API int tdsqlite3_limit(tdsqlite3*, int id, int newVal);
-
-/*
-** CAPI3REF: Run-Time Limit Categories
-** KEYWORDS: {limit category} {*limit categories}
-**
-** These constants define various performance limits
-** that can be lowered at run-time using [tdsqlite3_limit()].
-** The synopsis of the meanings of the various limits is shown below.
-** Additional information is available at [limits | Limits in SQLite].
-**
-** <dl>
-** [[SQLITE_LIMIT_LENGTH]] ^(<dt>SQLITE_LIMIT_LENGTH</dt>
-** <dd>The maximum size of any string or BLOB or table row, in bytes.<dd>)^
-**
-** [[SQLITE_LIMIT_SQL_LENGTH]] ^(<dt>SQLITE_LIMIT_SQL_LENGTH</dt>
-** <dd>The maximum length of an SQL statement, in bytes.</dd>)^
-**
-** [[SQLITE_LIMIT_COLUMN]] ^(<dt>SQLITE_LIMIT_COLUMN</dt>
-** <dd>The maximum number of columns in a table definition or in the
-** result set of a [SELECT] or the maximum number of columns in an index
-** or in an ORDER BY or GROUP BY clause.</dd>)^
-**
-** [[SQLITE_LIMIT_EXPR_DEPTH]] ^(<dt>SQLITE_LIMIT_EXPR_DEPTH</dt>
-** <dd>The maximum depth of the parse tree on any expression.</dd>)^
-**
-** [[SQLITE_LIMIT_COMPOUND_SELECT]] ^(<dt>SQLITE_LIMIT_COMPOUND_SELECT</dt>
-** <dd>The maximum number of terms in a compound SELECT statement.</dd>)^
-**
-** [[SQLITE_LIMIT_VDBE_OP]] ^(<dt>SQLITE_LIMIT_VDBE_OP</dt>
-** <dd>The maximum number of instructions in a virtual machine program
-** used to implement an SQL statement.  If [tdsqlite3_prepare_v2()] or
-** the equivalent tries to allocate space for more than this many opcodes
-** in a single prepared statement, an SQLITE_NOMEM error is returned.</dd>)^
-**
-** [[SQLITE_LIMIT_FUNCTION_ARG]] ^(<dt>SQLITE_LIMIT_FUNCTION_ARG</dt>
-** <dd>The maximum number of arguments on a function.</dd>)^
-**
-** [[SQLITE_LIMIT_ATTACHED]] ^(<dt>SQLITE_LIMIT_ATTACHED</dt>
-** <dd>The maximum number of [ATTACH | attached databases].)^</dd>
-**
-** [[SQLITE_LIMIT_LIKE_PATTERN_LENGTH]]
-** ^(<dt>SQLITE_LIMIT_LIKE_PATTERN_LENGTH</dt>
-** <dd>The maximum length of the pattern argument to the [LIKE] or
-** [GLOB] operators.</dd>)^
-**
-** [[SQLITE_LIMIT_VARIABLE_NUMBER]]
-** ^(<dt>SQLITE_LIMIT_VARIABLE_NUMBER</dt>
-** <dd>The maximum index number of any [parameter] in an SQL statement.)^
-**
-** [[SQLITE_LIMIT_TRIGGER_DEPTH]] ^(<dt>SQLITE_LIMIT_TRIGGER_DEPTH</dt>
-** <dd>The maximum depth of recursion for triggers.</dd>)^
-**
-** [[SQLITE_LIMIT_WORKER_THREADS]] ^(<dt>SQLITE_LIMIT_WORKER_THREADS</dt>
-** <dd>The maximum number of auxiliary worker threads that a single
-** [prepared statement] may start.</dd>)^
-** </dl>
-*/
-#define SQLITE_LIMIT_LENGTH                    0
-#define SQLITE_LIMIT_SQL_LENGTH                1
-#define SQLITE_LIMIT_COLUMN                    2
-#define SQLITE_LIMIT_EXPR_DEPTH                3
-#define SQLITE_LIMIT_COMPOUND_SELECT           4
-#define SQLITE_LIMIT_VDBE_OP                   5
-#define SQLITE_LIMIT_FUNCTION_ARG              6
-#define SQLITE_LIMIT_ATTACHED                  7
-#define SQLITE_LIMIT_LIKE_PATTERN_LENGTH       8
-#define SQLITE_LIMIT_VARIABLE_NUMBER           9
-#define SQLITE_LIMIT_TRIGGER_DEPTH            10
-#define SQLITE_LIMIT_WORKER_THREADS           11
-
-/*
-** CAPI3REF: Prepare Flags
-**
-** These constants define various flags that can be passed into
-** "prepFlags" parameter of the [tdsqlite3_prepare_v3()] and
-** [tdsqlite3_prepare16_v3()] interfaces.
-**
-** New flags may be added in future releases of SQLite.
-**
-** <dl>
-** [[SQLITE_PREPARE_PERSISTENT]] ^(<dt>SQLITE_PREPARE_PERSISTENT</dt>
-** <dd>The SQLITE_PREPARE_PERSISTENT flag is a hint to the query planner
-** that the prepared statement will be retained for a long time and
-** probably reused many times.)^ ^Without this flag, [tdsqlite3_prepare_v3()]
-** and [tdsqlite3_prepare16_v3()] assume that the prepared statement will 
-** be used just once or at most a few times and then destroyed using
-** [tdsqlite3_finalize()] relatively soon. The current implementation acts
-** on this hint by avoiding the use of [lookaside memory] so as not to
-** deplete the limited store of lookaside memory. Future versions of
-** SQLite may act on this hint differently.
-**
-** [[SQLITE_PREPARE_NORMALIZE]] <dt>SQLITE_PREPARE_NORMALIZE</dt>
-** <dd>The SQLITE_PREPARE_NORMALIZE flag is a no-op. This flag used
-** to be required for any prepared statement that wanted to use the
-** [tdsqlite3_normalized_sql()] interface.  However, the
-** [tdsqlite3_normalized_sql()] interface is now available to all
-** prepared statements, regardless of whether or not they use this
-** flag.
-**
-** [[SQLITE_PREPARE_NO_VTAB]] <dt>SQLITE_PREPARE_NO_VTAB</dt>
-** <dd>The SQLITE_PREPARE_NO_VTAB flag causes the SQL compiler
-** to return an error (error code SQLITE_ERROR) if the statement uses
-** any virtual tables.
-** </dl>
-*/
-#define SQLITE_PREPARE_PERSISTENT              0x01
-#define SQLITE_PREPARE_NORMALIZE               0x02
-#define SQLITE_PREPARE_NO_VTAB                 0x04
-
-/*
-** CAPI3REF: Compiling An SQL Statement
-** KEYWORDS: {SQL statement compiler}
-** METHOD: tdsqlite3
-** CONSTRUCTOR: tdsqlite3_stmt
-**
-** To execute an SQL statement, it must first be compiled into a byte-code
-** program using one of these routines.  Or, in other words, these routines
-** are constructors for the [prepared statement] object.
-**
-** The preferred routine to use is [tdsqlite3_prepare_v2()].  The
-** [tdsqlite3_prepare()] interface is legacy and should be avoided.
-** [tdsqlite3_prepare_v3()] has an extra "prepFlags" option that is used
-** for special purposes.
-**
-** The use of the UTF-8 interfaces is preferred, as SQLite currently
-** does all parsing using UTF-8.  The UTF-16 interfaces are provided
-** as a convenience.  The UTF-16 interfaces work by converting the
-** input text into UTF-8, then invoking the corresponding UTF-8 interface.
-**
-** The first argument, "db", is a [database connection] obtained from a
-** prior successful call to [tdsqlite3_open()], [tdsqlite3_open_v2()] or
-** [tdsqlite3_open16()].  The database connection must not have been closed.
-**
-** The second argument, "zSql", is the statement to be compiled, encoded
-** as either UTF-8 or UTF-16.  The tdsqlite3_prepare(), tdsqlite3_prepare_v2(),
-** and tdsqlite3_prepare_v3()
-** interfaces use UTF-8, and tdsqlite3_prepare16(), tdsqlite3_prepare16_v2(),
-** and tdsqlite3_prepare16_v3() use UTF-16.
-**
-** ^If the nByte argument is negative, then zSql is read up to the
-** first zero terminator. ^If nByte is positive, then it is the
-** number of bytes read from zSql.  ^If nByte is zero, then no prepared
-** statement is generated.
-** If the caller knows that the supplied string is nul-terminated, then
-** there is a small performance advantage to passing an nByte parameter that
-** is the number of bytes in the input string <i>including</i>
-** the nul-terminator.
-**
-** ^If pzTail is not NULL then *pzTail is made to point to the first byte
-** past the end of the first SQL statement in zSql.  These routines only
-** compile the first statement in zSql, so *pzTail is left pointing to
-** what remains uncompiled.
-**
-** ^*ppStmt is left pointing to a compiled [prepared statement] that can be
-** executed using [tdsqlite3_step()].  ^If there is an error, *ppStmt is set
-** to NULL.  ^If the input text contains no SQL (if the input is an empty
-** string or a comment) then *ppStmt is set to NULL.
-** The calling procedure is responsible for deleting the compiled
-** SQL statement using [tdsqlite3_finalize()] after it has finished with it.
-** ppStmt may not be NULL.
-**
-** ^On success, the tdsqlite3_prepare() family of routines return [SQLITE_OK];
-** otherwise an [error code] is returned.
-**
-** The tdsqlite3_prepare_v2(), tdsqlite3_prepare_v3(), tdsqlite3_prepare16_v2(),
-** and tdsqlite3_prepare16_v3() interfaces are recommended for all new programs.
-** The older interfaces (tdsqlite3_prepare() and tdsqlite3_prepare16())
-** are retained for backwards compatibility, but their use is discouraged.
-** ^In the "vX" interfaces, the prepared statement
-** that is returned (the [tdsqlite3_stmt] object) contains a copy of the
-** original SQL text. This causes the [tdsqlite3_step()] interface to
-** behave differently in three ways:
-**
-** <ol>
-** <li>
-** ^If the database schema changes, instead of returning [SQLITE_SCHEMA] as it
-** always used to do, [tdsqlite3_step()] will automatically recompile the SQL
-** statement and try to run it again. As many as [SQLITE_MAX_SCHEMA_RETRY]
-** retries will occur before tdsqlite3_step() gives up and returns an error.
-** </li>
-**
-** <li>
-** ^When an error occurs, [tdsqlite3_step()] will return one of the detailed
-** [error codes] or [extended error codes].  ^The legacy behavior was that
-** [tdsqlite3_step()] would only return a generic [SQLITE_ERROR] result code
-** and the application would have to make a second call to [tdsqlite3_reset()]
-** in order to find the underlying cause of the problem. With the "v2" prepare
-** interfaces, the underlying reason for the error is returned immediately.
-** </li>
-**
-** <li>
-** ^If the specific value bound to a [parameter | host parameter] in the 
-** WHERE clause might influence the choice of query plan for a statement,
-** then the statement will be automatically recompiled, as if there had been 
-** a schema change, on the first [tdsqlite3_step()] call following any change
-** to the [tdsqlite3_bind_text | bindings] of that [parameter]. 
-** ^The specific value of a WHERE-clause [parameter] might influence the 
-** choice of query plan if the parameter is the left-hand side of a [LIKE]
-** or [GLOB] operator or if the parameter is compared to an indexed column
-** and the [SQLITE_ENABLE_STAT4] compile-time option is enabled.
-** </li>
-** </ol>
-**
-** <p>^tdsqlite3_prepare_v3() differs from tdsqlite3_prepare_v2() only in having
-** the extra prepFlags parameter, which is a bit array consisting of zero or
-** more of the [SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_*] flags.  ^The
-** tdsqlite3_prepare_v2() interface works exactly the same as
-** tdsqlite3_prepare_v3() with a zero prepFlags parameter.
-*/
-SQLITE_API int tdsqlite3_prepare(
-  tdsqlite3 *db,            /* Database handle */
-  const char *zSql,       /* SQL statement, UTF-8 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const char **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare_v2(
-  tdsqlite3 *db,            /* Database handle */
-  const char *zSql,       /* SQL statement, UTF-8 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const char **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare_v3(
-  tdsqlite3 *db,            /* Database handle */
-  const char *zSql,       /* SQL statement, UTF-8 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  unsigned int prepFlags, /* Zero or more SQLITE_PREPARE_ flags */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const char **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare16(
-  tdsqlite3 *db,            /* Database handle */
-  const void *zSql,       /* SQL statement, UTF-16 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const void **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare16_v2(
-  tdsqlite3 *db,            /* Database handle */
-  const void *zSql,       /* SQL statement, UTF-16 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const void **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare16_v3(
-  tdsqlite3 *db,            /* Database handle */
-  const void *zSql,       /* SQL statement, UTF-16 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  unsigned int prepFlags, /* Zero or more SQLITE_PREPARE_ flags */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const void **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-
-/*
-** CAPI3REF: Retrieving Statement SQL
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_sql(P) interface returns a pointer to a copy of the UTF-8
-** SQL text used to create [prepared statement] P if P was
-** created by [tdsqlite3_prepare_v2()], [tdsqlite3_prepare_v3()],
-** [tdsqlite3_prepare16_v2()], or [tdsqlite3_prepare16_v3()].
-** ^The tdsqlite3_expanded_sql(P) interface returns a pointer to a UTF-8
-** string containing the SQL text of prepared statement P with
-** [bound parameters] expanded.
-** ^The tdsqlite3_normalized_sql(P) interface returns a pointer to a UTF-8
-** string containing the normalized SQL text of prepared statement P.  The
-** semantics used to normalize a SQL statement are unspecified and subject
-** to change.  At a minimum, literal values will be replaced with suitable
-** placeholders.
-**
-** ^(For example, if a prepared statement is created using the SQL
-** text "SELECT $abc,:xyz" and if parameter $abc is bound to integer 2345
-** and parameter :xyz is unbound, then tdsqlite3_sql() will return
-** the original string, "SELECT $abc,:xyz" but tdsqlite3_expanded_sql()
-** will return "SELECT 2345,NULL".)^
-**
-** ^The tdsqlite3_expanded_sql() interface returns NULL if insufficient memory
-** is available to hold the result, or if the result would exceed the
-** the maximum string length determined by the [SQLITE_LIMIT_LENGTH].
-**
-** ^The [SQLITE_TRACE_SIZE_LIMIT] compile-time option limits the size of
-** bound parameter expansions.  ^The [SQLITE_OMIT_TRACE] compile-time
-** option causes tdsqlite3_expanded_sql() to always return NULL.
-**
-** ^The strings returned by tdsqlite3_sql(P) and tdsqlite3_normalized_sql(P)
-** are managed by SQLite and are automatically freed when the prepared
-** statement is finalized.
-** ^The string returned by tdsqlite3_expanded_sql(P), on the other hand,
-** is obtained from [tdsqlite3_malloc()] and must be free by the application
-** by passing it to [tdsqlite3_free()].
-*/
-SQLITE_API const char *tdsqlite3_sql(tdsqlite3_stmt *pStmt);
-SQLITE_API char *tdsqlite3_expanded_sql(tdsqlite3_stmt *pStmt);
-SQLITE_API const char *tdsqlite3_normalized_sql(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Determine If An SQL Statement Writes The Database
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_stmt_readonly(X) interface returns true (non-zero) if
-** and only if the [prepared statement] X makes no direct changes to
-** the content of the database file.
-**
-** Note that [application-defined SQL functions] or
-** [virtual tables] might change the database indirectly as a side effect.  
-** ^(For example, if an application defines a function "eval()" that 
-** calls [tdsqlite3_exec()], then the following SQL statement would
-** change the database file through side-effects:
-**
-** <blockquote><pre>
-**    SELECT eval('DELETE FROM t1') FROM t2;
-** </pre></blockquote>
-**
-** But because the [SELECT] statement does not change the database file
-** directly, tdsqlite3_stmt_readonly() would still return true.)^
-**
-** ^Transaction control statements such as [BEGIN], [COMMIT], [ROLLBACK],
-** [SAVEPOINT], and [RELEASE] cause tdsqlite3_stmt_readonly() to return true,
-** since the statements themselves do not actually modify the database but
-** rather they control the timing of when other statements modify the 
-** database.  ^The [ATTACH] and [DETACH] statements also cause
-** tdsqlite3_stmt_readonly() to return true since, while those statements
-** change the configuration of a database connection, they do not make 
-** changes to the content of the database files on disk.
-** ^The tdsqlite3_stmt_readonly() interface returns true for [BEGIN] since
-** [BEGIN] merely sets internal flags, but the [BEGIN|BEGIN IMMEDIATE] and
-** [BEGIN|BEGIN EXCLUSIVE] commands do touch the database and so
-** tdsqlite3_stmt_readonly() returns false for those commands.
-*/
-SQLITE_API int tdsqlite3_stmt_readonly(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Query The EXPLAIN Setting For A Prepared Statement
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_stmt_isexplain(S) interface returns 1 if the
-** prepared statement S is an EXPLAIN statement, or 2 if the
-** statement S is an EXPLAIN QUERY PLAN.
-** ^The tdsqlite3_stmt_isexplain(S) interface returns 0 if S is
-** an ordinary statement or a NULL pointer.
-*/
-SQLITE_API int tdsqlite3_stmt_isexplain(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Determine If A Prepared Statement Has Been Reset
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_stmt_busy(S) interface returns true (non-zero) if the
-** [prepared statement] S has been stepped at least once using 
-** [tdsqlite3_step(S)] but has neither run to completion (returned
-** [SQLITE_DONE] from [tdsqlite3_step(S)]) nor
-** been reset using [tdsqlite3_reset(S)].  ^The tdsqlite3_stmt_busy(S)
-** interface returns false if S is a NULL pointer.  If S is not a 
-** NULL pointer and is not a pointer to a valid [prepared statement]
-** object, then the behavior is undefined and probably undesirable.
-**
-** This interface can be used in combination [tdsqlite3_next_stmt()]
-** to locate all prepared statements associated with a database 
-** connection that are in need of being reset.  This can be used,
-** for example, in diagnostic routines to search for prepared 
-** statements that are holding a transaction open.
-*/
-SQLITE_API int tdsqlite3_stmt_busy(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Dynamically Typed Value Object
-** KEYWORDS: {protected tdsqlite3_value} {unprotected tdsqlite3_value}
-**
-** SQLite uses the tdsqlite3_value object to represent all values
-** that can be stored in a database table. SQLite uses dynamic typing
-** for the values it stores.  ^Values stored in tdsqlite3_value objects
-** can be integers, floating point values, strings, BLOBs, or NULL.
-**
-** An tdsqlite3_value object may be either "protected" or "unprotected".
-** Some interfaces require a protected tdsqlite3_value.  Other interfaces
-** will accept either a protected or an unprotected tdsqlite3_value.
-** Every interface that accepts tdsqlite3_value arguments specifies
-** whether or not it requires a protected tdsqlite3_value.  The
-** [tdsqlite3_value_dup()] interface can be used to construct a new 
-** protected tdsqlite3_value from an unprotected tdsqlite3_value.
-**
-** The terms "protected" and "unprotected" refer to whether or not
-** a mutex is held.  An internal mutex is held for a protected
-** tdsqlite3_value object but no mutex is held for an unprotected
-** tdsqlite3_value object.  If SQLite is compiled to be single-threaded
-** (with [SQLITE_THREADSAFE=0] and with [tdsqlite3_threadsafe()] returning 0)
-** or if SQLite is run in one of reduced mutex modes 
-** [SQLITE_CONFIG_SINGLETHREAD] or [SQLITE_CONFIG_MULTITHREAD]
-** then there is no distinction between protected and unprotected
-** tdsqlite3_value objects and they can be used interchangeably.  However,
-** for maximum code portability it is recommended that applications
-** still make the distinction between protected and unprotected
-** tdsqlite3_value objects even when not strictly required.
-**
-** ^The tdsqlite3_value objects that are passed as parameters into the
-** implementation of [application-defined SQL functions] are protected.
-** ^The tdsqlite3_value object returned by
-** [tdsqlite3_column_value()] is unprotected.
-** Unprotected tdsqlite3_value objects may only be used as arguments
-** to [tdsqlite3_result_value()], [tdsqlite3_bind_value()], and
-** [tdsqlite3_value_dup()].
-** The [tdsqlite3_value_blob | tdsqlite3_value_type()] family of
-** interfaces require protected tdsqlite3_value objects.
-*/
-typedef struct tdsqlite3_value tdsqlite3_value;
-
-/*
-** CAPI3REF: SQL Function Context Object
-**
-** The context in which an SQL function executes is stored in an
-** tdsqlite3_context object.  ^A pointer to an tdsqlite3_context object
-** is always first parameter to [application-defined SQL functions].
-** The application-defined SQL function implementation will pass this
-** pointer through into calls to [tdsqlite3_result_int | tdsqlite3_result()],
-** [tdsqlite3_aggregate_context()], [tdsqlite3_user_data()],
-** [tdsqlite3_context_db_handle()], [tdsqlite3_get_auxdata()],
-** and/or [tdsqlite3_set_auxdata()].
-*/
-typedef struct tdsqlite3_context tdsqlite3_context;
-
-/*
-** CAPI3REF: Binding Values To Prepared Statements
-** KEYWORDS: {host parameter} {host parameters} {host parameter name}
-** KEYWORDS: {SQL parameter} {SQL parameters} {parameter binding}
-** METHOD: tdsqlite3_stmt
-**
-** ^(In the SQL statement text input to [tdsqlite3_prepare_v2()] and its variants,
-** literals may be replaced by a [parameter] that matches one of following
-** templates:
-**
-** <ul>
-** <li>  ?
-** <li>  ?NNN
-** <li>  :VVV
-** <li>  @VVV
-** <li>  $VVV
-** </ul>
-**
-** In the templates above, NNN represents an integer literal,
-** and VVV represents an alphanumeric identifier.)^  ^The values of these
-** parameters (also called "host parameter names" or "SQL parameters")
-** can be set using the tdsqlite3_bind_*() routines defined here.
-**
-** ^The first argument to the tdsqlite3_bind_*() routines is always
-** a pointer to the [tdsqlite3_stmt] object returned from
-** [tdsqlite3_prepare_v2()] or its variants.
-**
-** ^The second argument is the index of the SQL parameter to be set.
-** ^The leftmost SQL parameter has an index of 1.  ^When the same named
-** SQL parameter is used more than once, second and subsequent
-** occurrences have the same index as the first occurrence.
-** ^The index for named parameters can be looked up using the
-** [tdsqlite3_bind_parameter_index()] API if desired.  ^The index
-** for "?NNN" parameters is the value of NNN.
-** ^The NNN value must be between 1 and the [tdsqlite3_limit()]
-** parameter [SQLITE_LIMIT_VARIABLE_NUMBER] (default value: 999).
-**
-** ^The third argument is the value to bind to the parameter.
-** ^If the third parameter to tdsqlite3_bind_text() or tdsqlite3_bind_text16()
-** or tdsqlite3_bind_blob() is a NULL pointer then the fourth parameter
-** is ignored and the end result is the same as tdsqlite3_bind_null().
-**
-** ^(In those routines that have a fourth argument, its value is the
-** number of bytes in the parameter.  To be clear: the value is the
-** number of <u>bytes</u> in the value, not the number of characters.)^
-** ^If the fourth parameter to tdsqlite3_bind_text() or tdsqlite3_bind_text16()
-** is negative, then the length of the string is
-** the number of bytes up to the first zero terminator.
-** If the fourth parameter to tdsqlite3_bind_blob() is negative, then
-** the behavior is undefined.
-** If a non-negative fourth parameter is provided to tdsqlite3_bind_text()
-** or tdsqlite3_bind_text16() or tdsqlite3_bind_text64() then
-** that parameter must be the byte offset
-** where the NUL terminator would occur assuming the string were NUL
-** terminated.  If any NUL characters occur at byte offsets less than 
-** the value of the fourth parameter then the resulting string value will
-** contain embedded NULs.  The result of expressions involving strings
-** with embedded NULs is undefined.
-**
-** ^The fifth argument to the BLOB and string binding interfaces
-** is a destructor used to dispose of the BLOB or
-** string after SQLite has finished with it.  ^The destructor is called
-** to dispose of the BLOB or string even if the call to the bind API fails,
-** except the destructor is not called if the third parameter is a NULL
-** pointer or the fourth parameter is negative.
-** ^If the fifth argument is
-** the special value [SQLITE_STATIC], then SQLite assumes that the
-** information is in static, unmanaged space and does not need to be freed.
-** ^If the fifth argument has the value [SQLITE_TRANSIENT], then
-** SQLite makes its own private copy of the data immediately, before
-** the tdsqlite3_bind_*() routine returns.
-**
-** ^The sixth argument to tdsqlite3_bind_text64() must be one of
-** [SQLITE_UTF8], [SQLITE_UTF16], [SQLITE_UTF16BE], or [SQLITE_UTF16LE]
-** to specify the encoding of the text in the third parameter.  If
-** the sixth argument to tdsqlite3_bind_text64() is not one of the
-** allowed values shown above, or if the text encoding is different
-** from the encoding specified by the sixth parameter, then the behavior
-** is undefined.
-**
-** ^The tdsqlite3_bind_zeroblob() routine binds a BLOB of length N that
-** is filled with zeroes.  ^A zeroblob uses a fixed amount of memory
-** (just an integer to hold its size) while it is being processed.
-** Zeroblobs are intended to serve as placeholders for BLOBs whose
-** content is later written using
-** [tdsqlite3_blob_open | incremental BLOB I/O] routines.
-** ^A negative value for the zeroblob results in a zero-length BLOB.
-**
-** ^The tdsqlite3_bind_pointer(S,I,P,T,D) routine causes the I-th parameter in
-** [prepared statement] S to have an SQL value of NULL, but to also be
-** associated with the pointer P of type T.  ^D is either a NULL pointer or
-** a pointer to a destructor function for P. ^SQLite will invoke the
-** destructor D with a single argument of P when it is finished using
-** P.  The T parameter should be a static string, preferably a string
-** literal. The tdsqlite3_bind_pointer() routine is part of the
-** [pointer passing interface] added for SQLite 3.20.0.
-**
-** ^If any of the tdsqlite3_bind_*() routines are called with a NULL pointer
-** for the [prepared statement] or with a prepared statement for which
-** [tdsqlite3_step()] has been called more recently than [tdsqlite3_reset()],
-** then the call will return [SQLITE_MISUSE].  If any tdsqlite3_bind_()
-** routine is passed a [prepared statement] that has been finalized, the
-** result is undefined and probably harmful.
-**
-** ^Bindings are not cleared by the [tdsqlite3_reset()] routine.
-** ^Unbound parameters are interpreted as NULL.
-**
-** ^The tdsqlite3_bind_* routines return [SQLITE_OK] on success or an
-** [error code] if anything goes wrong.
-** ^[SQLITE_TOOBIG] might be returned if the size of a string or BLOB
-** exceeds limits imposed by [tdsqlite3_limit]([SQLITE_LIMIT_LENGTH]) or
-** [SQLITE_MAX_LENGTH].
-** ^[SQLITE_RANGE] is returned if the parameter
-** index is out of range.  ^[SQLITE_NOMEM] is returned if malloc() fails.
-**
-** See also: [tdsqlite3_bind_parameter_count()],
-** [tdsqlite3_bind_parameter_name()], and [tdsqlite3_bind_parameter_index()].
-*/
-SQLITE_API int tdsqlite3_bind_blob(tdsqlite3_stmt*, int, const void*, int n, void(*)(void*));
-SQLITE_API int tdsqlite3_bind_blob64(tdsqlite3_stmt*, int, const void*, tdsqlite3_uint64,
-                        void(*)(void*));
-SQLITE_API int tdsqlite3_bind_double(tdsqlite3_stmt*, int, double);
-SQLITE_API int tdsqlite3_bind_int(tdsqlite3_stmt*, int, int);
-SQLITE_API int tdsqlite3_bind_int64(tdsqlite3_stmt*, int, tdsqlite3_int64);
-SQLITE_API int tdsqlite3_bind_null(tdsqlite3_stmt*, int);
-SQLITE_API int tdsqlite3_bind_text(tdsqlite3_stmt*,int,const char*,int,void(*)(void*));
-SQLITE_API int tdsqlite3_bind_text16(tdsqlite3_stmt*, int, const void*, int, void(*)(void*));
-SQLITE_API int tdsqlite3_bind_text64(tdsqlite3_stmt*, int, const char*, tdsqlite3_uint64,
-                         void(*)(void*), unsigned char encoding);
-SQLITE_API int tdsqlite3_bind_value(tdsqlite3_stmt*, int, const tdsqlite3_value*);
-SQLITE_API int tdsqlite3_bind_pointer(tdsqlite3_stmt*, int, void*, const char*,void(*)(void*));
-SQLITE_API int tdsqlite3_bind_zeroblob(tdsqlite3_stmt*, int, int n);
-SQLITE_API int tdsqlite3_bind_zeroblob64(tdsqlite3_stmt*, int, tdsqlite3_uint64);
-
-/*
-** CAPI3REF: Number Of SQL Parameters
-** METHOD: tdsqlite3_stmt
-**
-** ^This routine can be used to find the number of [SQL parameters]
-** in a [prepared statement].  SQL parameters are tokens of the
-** form "?", "?NNN", ":AAA", "$AAA", or "@AAA" that serve as
-** placeholders for values that are [tdsqlite3_bind_blob | bound]
-** to the parameters at a later time.
-**
-** ^(This routine actually returns the index of the largest (rightmost)
-** parameter. For all forms except ?NNN, this will correspond to the
-** number of unique parameters.  If parameters of the ?NNN form are used,
-** there may be gaps in the list.)^
-**
-** See also: [tdsqlite3_bind_blob|tdsqlite3_bind()],
-** [tdsqlite3_bind_parameter_name()], and
-** [tdsqlite3_bind_parameter_index()].
-*/
-SQLITE_API int tdsqlite3_bind_parameter_count(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Name Of A Host Parameter
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_bind_parameter_name(P,N) interface returns
-** the name of the N-th [SQL parameter] in the [prepared statement] P.
-** ^(SQL parameters of the form "?NNN" or ":AAA" or "@AAA" or "$AAA"
-** have a name which is the string "?NNN" or ":AAA" or "@AAA" or "$AAA"
-** respectively.
-** In other words, the initial ":" or "$" or "@" or "?"
-** is included as part of the name.)^
-** ^Parameters of the form "?" without a following integer have no name
-** and are referred to as "nameless" or "anonymous parameters".
-**
-** ^The first host parameter has an index of 1, not 0.
-**
-** ^If the value N is out of range or if the N-th parameter is
-** nameless, then NULL is returned.  ^The returned string is
-** always in UTF-8 encoding even if the named parameter was
-** originally specified as UTF-16 in [tdsqlite3_prepare16()],
-** [tdsqlite3_prepare16_v2()], or [tdsqlite3_prepare16_v3()].
-**
-** See also: [tdsqlite3_bind_blob|tdsqlite3_bind()],
-** [tdsqlite3_bind_parameter_count()], and
-** [tdsqlite3_bind_parameter_index()].
-*/
-SQLITE_API const char *tdsqlite3_bind_parameter_name(tdsqlite3_stmt*, int);
-
-/*
-** CAPI3REF: Index Of A Parameter With A Given Name
-** METHOD: tdsqlite3_stmt
-**
-** ^Return the index of an SQL parameter given its name.  ^The
-** index value returned is suitable for use as the second
-** parameter to [tdsqlite3_bind_blob|tdsqlite3_bind()].  ^A zero
-** is returned if no matching parameter is found.  ^The parameter
-** name must be given in UTF-8 even if the original statement
-** was prepared from UTF-16 text using [tdsqlite3_prepare16_v2()] or
-** [tdsqlite3_prepare16_v3()].
-**
-** See also: [tdsqlite3_bind_blob|tdsqlite3_bind()],
-** [tdsqlite3_bind_parameter_count()], and
-** [tdsqlite3_bind_parameter_name()].
-*/
-SQLITE_API int tdsqlite3_bind_parameter_index(tdsqlite3_stmt*, const char *zName);
-
-/*
-** CAPI3REF: Reset All Bindings On A Prepared Statement
-** METHOD: tdsqlite3_stmt
-**
-** ^Contrary to the intuition of many, [tdsqlite3_reset()] does not reset
-** the [tdsqlite3_bind_blob | bindings] on a [prepared statement].
-** ^Use this routine to reset all host parameters to NULL.
-*/
-SQLITE_API int tdsqlite3_clear_bindings(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Number Of Columns In A Result Set
-** METHOD: tdsqlite3_stmt
-**
-** ^Return the number of columns in the result set returned by the
-** [prepared statement]. ^If this routine returns 0, that means the 
-** [prepared statement] returns no data (for example an [UPDATE]).
-** ^However, just because this routine returns a positive number does not
-** mean that one or more rows of data will be returned.  ^A SELECT statement
-** will always have a positive tdsqlite3_column_count() but depending on the
-** WHERE clause constraints and the table content, it might return no rows.
-**
-** See also: [tdsqlite3_data_count()]
-*/
-SQLITE_API int tdsqlite3_column_count(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Column Names In A Result Set
-** METHOD: tdsqlite3_stmt
-**
-** ^These routines return the name assigned to a particular column
-** in the result set of a [SELECT] statement.  ^The tdsqlite3_column_name()
-** interface returns a pointer to a zero-terminated UTF-8 string
-** and tdsqlite3_column_name16() returns a pointer to a zero-terminated
-** UTF-16 string.  ^The first parameter is the [prepared statement]
-** that implements the [SELECT] statement. ^The second parameter is the
-** column number.  ^The leftmost column is number 0.
-**
-** ^The returned string pointer is valid until either the [prepared statement]
-** is destroyed by [tdsqlite3_finalize()] or until the statement is automatically
-** reprepared by the first call to [tdsqlite3_step()] for a particular run
-** or until the next call to
-** tdsqlite3_column_name() or tdsqlite3_column_name16() on the same column.
-**
-** ^If tdsqlite3_malloc() fails during the processing of either routine
-** (for example during a conversion from UTF-8 to UTF-16) then a
-** NULL pointer is returned.
-**
-** ^The name of a result column is the value of the "AS" clause for
-** that column, if there is an AS clause.  If there is no AS clause
-** then the name of the column is unspecified and may change from
-** one release of SQLite to the next.
-*/
-SQLITE_API const char *tdsqlite3_column_name(tdsqlite3_stmt*, int N);
-SQLITE_API const void *tdsqlite3_column_name16(tdsqlite3_stmt*, int N);
-
-/*
-** CAPI3REF: Source Of Data In A Query Result
-** METHOD: tdsqlite3_stmt
-**
-** ^These routines provide a means to determine the database, table, and
-** table column that is the origin of a particular result column in
-** [SELECT] statement.
-** ^The name of the database or table or column can be returned as
-** either a UTF-8 or UTF-16 string.  ^The _database_ routines return
-** the database name, the _table_ routines return the table name, and
-** the origin_ routines return the column name.
-** ^The returned string is valid until the [prepared statement] is destroyed
-** using [tdsqlite3_finalize()] or until the statement is automatically
-** reprepared by the first call to [tdsqlite3_step()] for a particular run
-** or until the same information is requested
-** again in a different encoding.
-**
-** ^The names returned are the original un-aliased names of the
-** database, table, and column.
-**
-** ^The first argument to these interfaces is a [prepared statement].
-** ^These functions return information about the Nth result column returned by
-** the statement, where N is the second function argument.
-** ^The left-most column is column 0 for these routines.
-**
-** ^If the Nth column returned by the statement is an expression or
-** subquery and is not a column value, then all of these functions return
-** NULL.  ^These routines might also return NULL if a memory allocation error
-** occurs.  ^Otherwise, they return the name of the attached database, table,
-** or column that query result column was extracted from.
-**
-** ^As with all other SQLite APIs, those whose names end with "16" return
-** UTF-16 encoded strings and the other functions return UTF-8.
-**
-** ^These APIs are only available if the library was compiled with the
-** [SQLITE_ENABLE_COLUMN_METADATA] C-preprocessor symbol.
-**
-** If two or more threads call one or more
-** [tdsqlite3_column_database_name | column metadata interfaces]
-** for the same [prepared statement] and result column
-** at the same time then the results are undefined.
-*/
-SQLITE_API const char *tdsqlite3_column_database_name(tdsqlite3_stmt*,int);
-SQLITE_API const void *tdsqlite3_column_database_name16(tdsqlite3_stmt*,int);
-SQLITE_API const char *tdsqlite3_column_table_name(tdsqlite3_stmt*,int);
-SQLITE_API const void *tdsqlite3_column_table_name16(tdsqlite3_stmt*,int);
-SQLITE_API const char *tdsqlite3_column_origin_name(tdsqlite3_stmt*,int);
-SQLITE_API const void *tdsqlite3_column_origin_name16(tdsqlite3_stmt*,int);
-
-/*
-** CAPI3REF: Declared Datatype Of A Query Result
-** METHOD: tdsqlite3_stmt
-**
-** ^(The first parameter is a [prepared statement].
-** If this statement is a [SELECT] statement and the Nth column of the
-** returned result set of that [SELECT] is a table column (not an
-** expression or subquery) then the declared type of the table
-** column is returned.)^  ^If the Nth column of the result set is an
-** expression or subquery, then a NULL pointer is returned.
-** ^The returned string is always UTF-8 encoded.
-**
-** ^(For example, given the database schema:
-**
-** CREATE TABLE t1(c1 VARIANT);
-**
-** and the following statement to be compiled:
-**
-** SELECT c1 + 1, c1 FROM t1;
-**
-** this routine would return the string "VARIANT" for the second result
-** column (i==1), and a NULL pointer for the first result column (i==0).)^
-**
-** ^SQLite uses dynamic run-time typing.  ^So just because a column
-** is declared to contain a particular type does not mean that the
-** data stored in that column is of the declared type.  SQLite is
-** strongly typed, but the typing is dynamic not static.  ^Type
-** is associated with individual values, not with the containers
-** used to hold those values.
-*/
-SQLITE_API const char *tdsqlite3_column_decltype(tdsqlite3_stmt*,int);
-SQLITE_API const void *tdsqlite3_column_decltype16(tdsqlite3_stmt*,int);
-
-/*
-** CAPI3REF: Evaluate An SQL Statement
-** METHOD: tdsqlite3_stmt
-**
-** After a [prepared statement] has been prepared using any of
-** [tdsqlite3_prepare_v2()], [tdsqlite3_prepare_v3()], [tdsqlite3_prepare16_v2()],
-** or [tdsqlite3_prepare16_v3()] or one of the legacy
-** interfaces [tdsqlite3_prepare()] or [tdsqlite3_prepare16()], this function
-** must be called one or more times to evaluate the statement.
-**
-** The details of the behavior of the tdsqlite3_step() interface depend
-** on whether the statement was prepared using the newer "vX" interfaces
-** [tdsqlite3_prepare_v3()], [tdsqlite3_prepare_v2()], [tdsqlite3_prepare16_v3()],
-** [tdsqlite3_prepare16_v2()] or the older legacy
-** interfaces [tdsqlite3_prepare()] and [tdsqlite3_prepare16()].  The use of the
-** new "vX" interface is recommended for new applications but the legacy
-** interface will continue to be supported.
-**
-** ^In the legacy interface, the return value will be either [SQLITE_BUSY],
-** [SQLITE_DONE], [SQLITE_ROW], [SQLITE_ERROR], or [SQLITE_MISUSE].
-** ^With the "v2" interface, any of the other [result codes] or
-** [extended result codes] might be returned as well.
-**
-** ^[SQLITE_BUSY] means that the database engine was unable to acquire the
-** database locks it needs to do its job.  ^If the statement is a [COMMIT]
-** or occurs outside of an explicit transaction, then you can retry the
-** statement.  If the statement is not a [COMMIT] and occurs within an
-** explicit transaction then you should rollback the transaction before
-** continuing.
-**
-** ^[SQLITE_DONE] means that the statement has finished executing
-** successfully.  tdsqlite3_step() should not be called again on this virtual
-** machine without first calling [tdsqlite3_reset()] to reset the virtual
-** machine back to its initial state.
-**
-** ^If the SQL statement being executed returns any data, then [SQLITE_ROW]
-** is returned each time a new row of data is ready for processing by the
-** caller. The values may be accessed using the [column access functions].
-** tdsqlite3_step() is called again to retrieve the next row of data.
-**
-** ^[SQLITE_ERROR] means that a run-time error (such as a constraint
-** violation) has occurred.  tdsqlite3_step() should not be called again on
-** the VM. More information may be found by calling [tdsqlite3_errmsg()].
-** ^With the legacy interface, a more specific error code (for example,
-** [SQLITE_INTERRUPT], [SQLITE_SCHEMA], [SQLITE_CORRUPT], and so forth)
-** can be obtained by calling [tdsqlite3_reset()] on the
-** [prepared statement].  ^In the "v2" interface,
-** the more specific error code is returned directly by tdsqlite3_step().
-**
-** [SQLITE_MISUSE] means that the this routine was called inappropriately.
-** Perhaps it was called on a [prepared statement] that has
-** already been [tdsqlite3_finalize | finalized] or on one that had
-** previously returned [SQLITE_ERROR] or [SQLITE_DONE].  Or it could
-** be the case that the same database connection is being used by two or
-** more threads at the same moment in time.
-**
-** For all versions of SQLite up to and including 3.6.23.1, a call to
-** [tdsqlite3_reset()] was required after tdsqlite3_step() returned anything
-** other than [SQLITE_ROW] before any subsequent invocation of
-** tdsqlite3_step().  Failure to reset the prepared statement using 
-** [tdsqlite3_reset()] would result in an [SQLITE_MISUSE] return from
-** tdsqlite3_step().  But after [version 3.6.23.1] ([dateof:3.6.23.1],
-** tdsqlite3_step() began
-** calling [tdsqlite3_reset()] automatically in this circumstance rather
-** than returning [SQLITE_MISUSE].  This is not considered a compatibility
-** break because any application that ever receives an SQLITE_MISUSE error
-** is broken by definition.  The [SQLITE_OMIT_AUTORESET] compile-time option
-** can be used to restore the legacy behavior.
-**
-** <b>Goofy Interface Alert:</b> In the legacy interface, the tdsqlite3_step()
-** API always returns a generic error code, [SQLITE_ERROR], following any
-** error other than [SQLITE_BUSY] and [SQLITE_MISUSE].  You must call
-** [tdsqlite3_reset()] or [tdsqlite3_finalize()] in order to find one of the
-** specific [error codes] that better describes the error.
-** We admit that this is a goofy design.  The problem has been fixed
-** with the "v2" interface.  If you prepare all of your SQL statements
-** using [tdsqlite3_prepare_v3()] or [tdsqlite3_prepare_v2()]
-** or [tdsqlite3_prepare16_v2()] or [tdsqlite3_prepare16_v3()] instead
-** of the legacy [tdsqlite3_prepare()] and [tdsqlite3_prepare16()] interfaces,
-** then the more specific [error codes] are returned directly
-** by tdsqlite3_step().  The use of the "vX" interfaces is recommended.
-*/
-SQLITE_API int tdsqlite3_step(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Number of columns in a result set
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_data_count(P) interface returns the number of columns in the
-** current row of the result set of [prepared statement] P.
-** ^If prepared statement P does not have results ready to return
-** (via calls to the [tdsqlite3_column_int | tdsqlite3_column()] family of
-** interfaces) then tdsqlite3_data_count(P) returns 0.
-** ^The tdsqlite3_data_count(P) routine also returns 0 if P is a NULL pointer.
-** ^The tdsqlite3_data_count(P) routine returns 0 if the previous call to
-** [tdsqlite3_step](P) returned [SQLITE_DONE].  ^The tdsqlite3_data_count(P)
-** will return non-zero if previous call to [tdsqlite3_step](P) returned
-** [SQLITE_ROW], except in the case of the [PRAGMA incremental_vacuum]
-** where it always returns zero since each step of that multi-step
-** pragma returns 0 columns of data.
-**
-** See also: [tdsqlite3_column_count()]
-*/
-SQLITE_API int tdsqlite3_data_count(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Fundamental Datatypes
-** KEYWORDS: SQLITE_TEXT
-**
-** ^(Every value in SQLite has one of five fundamental datatypes:
-**
-** <ul>
-** <li> 64-bit signed integer
-** <li> 64-bit IEEE floating point number
-** <li> string
-** <li> BLOB
-** <li> NULL
-** </ul>)^
-**
-** These constants are codes for each of those types.
-**
-** Note that the SQLITE_TEXT constant was also used in SQLite version 2
-** for a completely different meaning.  Software that links against both
-** SQLite version 2 and SQLite version 3 should use SQLITE3_TEXT, not
-** SQLITE_TEXT.
-*/
-#define SQLITE_INTEGER  1
-#define SQLITE_FLOAT    2
-#define SQLITE_BLOB     4
-#define SQLITE_NULL     5
-#ifdef SQLITE_TEXT
-# undef SQLITE_TEXT
-#else
-# define SQLITE_TEXT     3
-#endif
-#define SQLITE3_TEXT     3
-
-/*
-** CAPI3REF: Result Values From A Query
-** KEYWORDS: {column access functions}
-** METHOD: tdsqlite3_stmt
-**
-** <b>Summary:</b>
-** <blockquote><table border=0 cellpadding=0 cellspacing=0>
-** <tr><td><b>tdsqlite3_column_blob</b><td>&rarr;<td>BLOB result
-** <tr><td><b>tdsqlite3_column_double</b><td>&rarr;<td>REAL result
-** <tr><td><b>tdsqlite3_column_int</b><td>&rarr;<td>32-bit INTEGER result
-** <tr><td><b>tdsqlite3_column_int64</b><td>&rarr;<td>64-bit INTEGER result
-** <tr><td><b>tdsqlite3_column_text</b><td>&rarr;<td>UTF-8 TEXT result
-** <tr><td><b>tdsqlite3_column_text16</b><td>&rarr;<td>UTF-16 TEXT result
-** <tr><td><b>tdsqlite3_column_value</b><td>&rarr;<td>The result as an 
-** [tdsqlite3_value|unprotected tdsqlite3_value] object.
-** <tr><td>&nbsp;<td>&nbsp;<td>&nbsp;
-** <tr><td><b>tdsqlite3_column_bytes</b><td>&rarr;<td>Size of a BLOB
-** or a UTF-8 TEXT result in bytes
-** <tr><td><b>tdsqlite3_column_bytes16&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>Size of UTF-16
-** TEXT in bytes
-** <tr><td><b>tdsqlite3_column_type</b><td>&rarr;<td>Default
-** datatype of the result
-** </table></blockquote>
-**
-** <b>Details:</b>
-**
-** ^These routines return information about a single column of the current
-** result row of a query.  ^In every case the first argument is a pointer
-** to the [prepared statement] that is being evaluated (the [tdsqlite3_stmt*]
-** that was returned from [tdsqlite3_prepare_v2()] or one of its variants)
-** and the second argument is the index of the column for which information
-** should be returned. ^The leftmost column of the result set has the index 0.
-** ^The number of columns in the result can be determined using
-** [tdsqlite3_column_count()].
-**
-** If the SQL statement does not currently point to a valid row, or if the
-** column index is out of range, the result is undefined.
-** These routines may only be called when the most recent call to
-** [tdsqlite3_step()] has returned [SQLITE_ROW] and neither
-** [tdsqlite3_reset()] nor [tdsqlite3_finalize()] have been called subsequently.
-** If any of these routines are called after [tdsqlite3_reset()] or
-** [tdsqlite3_finalize()] or after [tdsqlite3_step()] has returned
-** something other than [SQLITE_ROW], the results are undefined.
-** If [tdsqlite3_step()] or [tdsqlite3_reset()] or [tdsqlite3_finalize()]
-** are called from a different thread while any of these routines
-** are pending, then the results are undefined.
-**
-** The first six interfaces (_blob, _double, _int, _int64, _text, and _text16)
-** each return the value of a result column in a specific data format.  If
-** the result column is not initially in the requested format (for example,
-** if the query returns an integer but the tdsqlite3_column_text() interface
-** is used to extract the value) then an automatic type conversion is performed.
-**
-** ^The tdsqlite3_column_type() routine returns the
-** [SQLITE_INTEGER | datatype code] for the initial data type
-** of the result column.  ^The returned value is one of [SQLITE_INTEGER],
-** [SQLITE_FLOAT], [SQLITE_TEXT], [SQLITE_BLOB], or [SQLITE_NULL].
-** The return value of tdsqlite3_column_type() can be used to decide which
-** of the first six interface should be used to extract the column value.
-** The value returned by tdsqlite3_column_type() is only meaningful if no
-** automatic type conversions have occurred for the value in question.  
-** After a type conversion, the result of calling tdsqlite3_column_type()
-** is undefined, though harmless.  Future
-** versions of SQLite may change the behavior of tdsqlite3_column_type()
-** following a type conversion.
-**
-** If the result is a BLOB or a TEXT string, then the tdsqlite3_column_bytes()
-** or tdsqlite3_column_bytes16() interfaces can be used to determine the size
-** of that BLOB or string.
-**
-** ^If the result is a BLOB or UTF-8 string then the tdsqlite3_column_bytes()
-** routine returns the number of bytes in that BLOB or string.
-** ^If the result is a UTF-16 string, then tdsqlite3_column_bytes() converts
-** the string to UTF-8 and then returns the number of bytes.
-** ^If the result is a numeric value then tdsqlite3_column_bytes() uses
-** [tdsqlite3_snprintf()] to convert that value to a UTF-8 string and returns
-** the number of bytes in that string.
-** ^If the result is NULL, then tdsqlite3_column_bytes() returns zero.
-**
-** ^If the result is a BLOB or UTF-16 string then the tdsqlite3_column_bytes16()
-** routine returns the number of bytes in that BLOB or string.
-** ^If the result is a UTF-8 string, then tdsqlite3_column_bytes16() converts
-** the string to UTF-16 and then returns the number of bytes.
-** ^If the result is a numeric value then tdsqlite3_column_bytes16() uses
-** [tdsqlite3_snprintf()] to convert that value to a UTF-16 string and returns
-** the number of bytes in that string.
-** ^If the result is NULL, then tdsqlite3_column_bytes16() returns zero.
-**
-** ^The values returned by [tdsqlite3_column_bytes()] and 
-** [tdsqlite3_column_bytes16()] do not include the zero terminators at the end
-** of the string.  ^For clarity: the values returned by
-** [tdsqlite3_column_bytes()] and [tdsqlite3_column_bytes16()] are the number of
-** bytes in the string, not the number of characters.
-**
-** ^Strings returned by tdsqlite3_column_text() and tdsqlite3_column_text16(),
-** even empty strings, are always zero-terminated.  ^The return
-** value from tdsqlite3_column_blob() for a zero-length BLOB is a NULL pointer.
-**
-** <b>Warning:</b> ^The object returned by [tdsqlite3_column_value()] is an
-** [unprotected tdsqlite3_value] object.  In a multithreaded environment,
-** an unprotected tdsqlite3_value object may only be used safely with
-** [tdsqlite3_bind_value()] and [tdsqlite3_result_value()].
-** If the [unprotected tdsqlite3_value] object returned by
-** [tdsqlite3_column_value()] is used in any other way, including calls
-** to routines like [tdsqlite3_value_int()], [tdsqlite3_value_text()],
-** or [tdsqlite3_value_bytes()], the behavior is not threadsafe.
-** Hence, the tdsqlite3_column_value() interface
-** is normally only useful within the implementation of 
-** [application-defined SQL functions] or [virtual tables], not within
-** top-level application code.
-**
-** The these routines may attempt to convert the datatype of the result.
-** ^For example, if the internal representation is FLOAT and a text result
-** is requested, [tdsqlite3_snprintf()] is used internally to perform the
-** conversion automatically.  ^(The following table details the conversions
-** that are applied:
-**
-** <blockquote>
-** <table border="1">
-** <tr><th> Internal<br>Type <th> Requested<br>Type <th>  Conversion
-**
-** <tr><td>  NULL    <td> INTEGER   <td> Result is 0
-** <tr><td>  NULL    <td>  FLOAT    <td> Result is 0.0
-** <tr><td>  NULL    <td>   TEXT    <td> Result is a NULL pointer
-** <tr><td>  NULL    <td>   BLOB    <td> Result is a NULL pointer
-** <tr><td> INTEGER  <td>  FLOAT    <td> Convert from integer to float
-** <tr><td> INTEGER  <td>   TEXT    <td> ASCII rendering of the integer
-** <tr><td> INTEGER  <td>   BLOB    <td> Same as INTEGER->TEXT
-** <tr><td>  FLOAT   <td> INTEGER   <td> [CAST] to INTEGER
-** <tr><td>  FLOAT   <td>   TEXT    <td> ASCII rendering of the float
-** <tr><td>  FLOAT   <td>   BLOB    <td> [CAST] to BLOB
-** <tr><td>  TEXT    <td> INTEGER   <td> [CAST] to INTEGER
-** <tr><td>  TEXT    <td>  FLOAT    <td> [CAST] to REAL
-** <tr><td>  TEXT    <td>   BLOB    <td> No change
-** <tr><td>  BLOB    <td> INTEGER   <td> [CAST] to INTEGER
-** <tr><td>  BLOB    <td>  FLOAT    <td> [CAST] to REAL
-** <tr><td>  BLOB    <td>   TEXT    <td> Add a zero terminator if needed
-** </table>
-** </blockquote>)^
-**
-** Note that when type conversions occur, pointers returned by prior
-** calls to tdsqlite3_column_blob(), tdsqlite3_column_text(), and/or
-** tdsqlite3_column_text16() may be invalidated.
-** Type conversions and pointer invalidations might occur
-** in the following cases:
-**
-** <ul>
-** <li> The initial content is a BLOB and tdsqlite3_column_text() or
-**      tdsqlite3_column_text16() is called.  A zero-terminator might
-**      need to be added to the string.</li>
-** <li> The initial content is UTF-8 text and tdsqlite3_column_bytes16() or
-**      tdsqlite3_column_text16() is called.  The content must be converted
-**      to UTF-16.</li>
-** <li> The initial content is UTF-16 text and tdsqlite3_column_bytes() or
-**      tdsqlite3_column_text() is called.  The content must be converted
-**      to UTF-8.</li>
-** </ul>
-**
-** ^Conversions between UTF-16be and UTF-16le are always done in place and do
-** not invalidate a prior pointer, though of course the content of the buffer
-** that the prior pointer references will have been modified.  Other kinds
-** of conversion are done in place when it is possible, but sometimes they
-** are not possible and in those cases prior pointers are invalidated.
-**
-** The safest policy is to invoke these routines
-** in one of the following ways:
-**
-** <ul>
-**  <li>tdsqlite3_column_text() followed by tdsqlite3_column_bytes()</li>
-**  <li>tdsqlite3_column_blob() followed by tdsqlite3_column_bytes()</li>
-**  <li>tdsqlite3_column_text16() followed by tdsqlite3_column_bytes16()</li>
-** </ul>
-**
-** In other words, you should call tdsqlite3_column_text(),
-** tdsqlite3_column_blob(), or tdsqlite3_column_text16() first to force the result
-** into the desired format, then invoke tdsqlite3_column_bytes() or
-** tdsqlite3_column_bytes16() to find the size of the result.  Do not mix calls
-** to tdsqlite3_column_text() or tdsqlite3_column_blob() with calls to
-** tdsqlite3_column_bytes16(), and do not mix calls to tdsqlite3_column_text16()
-** with calls to tdsqlite3_column_bytes().
-**
-** ^The pointers returned are valid until a type conversion occurs as
-** described above, or until [tdsqlite3_step()] or [tdsqlite3_reset()] or
-** [tdsqlite3_finalize()] is called.  ^The memory space used to hold strings
-** and BLOBs is freed automatically.  Do not pass the pointers returned
-** from [tdsqlite3_column_blob()], [tdsqlite3_column_text()], etc. into
-** [tdsqlite3_free()].
-**
-** As long as the input parameters are correct, these routines will only
-** fail if an out-of-memory error occurs during a format conversion.
-** Only the following subset of interfaces are subject to out-of-memory
-** errors:
-**
-** <ul>
-** <li> tdsqlite3_column_blob()
-** <li> tdsqlite3_column_text()
-** <li> tdsqlite3_column_text16()
-** <li> tdsqlite3_column_bytes()
-** <li> tdsqlite3_column_bytes16()
-** </ul>
-**
-** If an out-of-memory error occurs, then the return value from these
-** routines is the same as if the column had contained an SQL NULL value.
-** Valid SQL NULL returns can be distinguished from out-of-memory errors
-** by invoking the [tdsqlite3_errcode()] immediately after the suspect
-** return value is obtained and before any
-** other SQLite interface is called on the same [database connection].
-*/
-SQLITE_API const void *tdsqlite3_column_blob(tdsqlite3_stmt*, int iCol);
-SQLITE_API double tdsqlite3_column_double(tdsqlite3_stmt*, int iCol);
-SQLITE_API int tdsqlite3_column_int(tdsqlite3_stmt*, int iCol);
-SQLITE_API tdsqlite3_int64 tdsqlite3_column_int64(tdsqlite3_stmt*, int iCol);
-SQLITE_API const unsigned char *tdsqlite3_column_text(tdsqlite3_stmt*, int iCol);
-SQLITE_API const void *tdsqlite3_column_text16(tdsqlite3_stmt*, int iCol);
-SQLITE_API tdsqlite3_value *tdsqlite3_column_value(tdsqlite3_stmt*, int iCol);
-SQLITE_API int tdsqlite3_column_bytes(tdsqlite3_stmt*, int iCol);
-SQLITE_API int tdsqlite3_column_bytes16(tdsqlite3_stmt*, int iCol);
-SQLITE_API int tdsqlite3_column_type(tdsqlite3_stmt*, int iCol);
-
-/*
-** CAPI3REF: Destroy A Prepared Statement Object
-** DESTRUCTOR: tdsqlite3_stmt
-**
-** ^The tdsqlite3_finalize() function is called to delete a [prepared statement].
-** ^If the most recent evaluation of the statement encountered no errors
-** or if the statement is never been evaluated, then tdsqlite3_finalize() returns
-** SQLITE_OK.  ^If the most recent evaluation of statement S failed, then
-** tdsqlite3_finalize(S) returns the appropriate [error code] or
-** [extended error code].
-**
-** ^The tdsqlite3_finalize(S) routine can be called at any point during
-** the life cycle of [prepared statement] S:
-** before statement S is ever evaluated, after
-** one or more calls to [tdsqlite3_reset()], or after any call
-** to [tdsqlite3_step()] regardless of whether or not the statement has
-** completed execution.
-**
-** ^Invoking tdsqlite3_finalize() on a NULL pointer is a harmless no-op.
-**
-** The application must finalize every [prepared statement] in order to avoid
-** resource leaks.  It is a grievous error for the application to try to use
-** a prepared statement after it has been finalized.  Any use of a prepared
-** statement after it has been finalized can result in undefined and
-** undesirable behavior such as segfaults and heap corruption.
-*/
-SQLITE_API int tdsqlite3_finalize(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Reset A Prepared Statement Object
-** METHOD: tdsqlite3_stmt
-**
-** The tdsqlite3_reset() function is called to reset a [prepared statement]
-** object back to its initial state, ready to be re-executed.
-** ^Any SQL statement variables that had values bound to them using
-** the [tdsqlite3_bind_blob | tdsqlite3_bind_*() API] retain their values.
-** Use [tdsqlite3_clear_bindings()] to reset the bindings.
-**
-** ^The [tdsqlite3_reset(S)] interface resets the [prepared statement] S
-** back to the beginning of its program.
-**
-** ^If the most recent call to [tdsqlite3_step(S)] for the
-** [prepared statement] S returned [SQLITE_ROW] or [SQLITE_DONE],
-** or if [tdsqlite3_step(S)] has never before been called on S,
-** then [tdsqlite3_reset(S)] returns [SQLITE_OK].
-**
-** ^If the most recent call to [tdsqlite3_step(S)] for the
-** [prepared statement] S indicated an error, then
-** [tdsqlite3_reset(S)] returns an appropriate [error code].
-**
-** ^The [tdsqlite3_reset(S)] interface does not change the values
-** of any [tdsqlite3_bind_blob|bindings] on the [prepared statement] S.
-*/
-SQLITE_API int tdsqlite3_reset(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Create Or Redefine SQL Functions
-** KEYWORDS: {function creation routines}
-** METHOD: tdsqlite3
-**
-** ^These functions (collectively known as "function creation routines")
-** are used to add SQL functions or aggregates or to redefine the behavior
-** of existing SQL functions or aggregates. The only differences between
-** the three "tdsqlite3_create_function*" routines are the text encoding 
-** expected for the second parameter (the name of the function being 
-** created) and the presence or absence of a destructor callback for
-** the application data pointer. Function tdsqlite3_create_window_function()
-** is similar, but allows the user to supply the extra callback functions
-** needed by [aggregate window functions].
-**
-** ^The first parameter is the [database connection] to which the SQL
-** function is to be added.  ^If an application uses more than one database
-** connection then application-defined SQL functions must be added
-** to each database connection separately.
-**
-** ^The second parameter is the name of the SQL function to be created or
-** redefined.  ^The length of the name is limited to 255 bytes in a UTF-8
-** representation, exclusive of the zero-terminator.  ^Note that the name
-** length limit is in UTF-8 bytes, not characters nor UTF-16 bytes.  
-** ^Any attempt to create a function with a longer name
-** will result in [SQLITE_MISUSE] being returned.
-**
-** ^The third parameter (nArg)
-** is the number of arguments that the SQL function or
-** aggregate takes. ^If this parameter is -1, then the SQL function or
-** aggregate may take any number of arguments between 0 and the limit
-** set by [tdsqlite3_limit]([SQLITE_LIMIT_FUNCTION_ARG]).  If the third
-** parameter is less than -1 or greater than 127 then the behavior is
-** undefined.
-**
-** ^The fourth parameter, eTextRep, specifies what
-** [SQLITE_UTF8 | text encoding] this SQL function prefers for
-** its parameters.  The application should set this parameter to
-** [SQLITE_UTF16LE] if the function implementation invokes 
-** [tdsqlite3_value_text16le()] on an input, or [SQLITE_UTF16BE] if the
-** implementation invokes [tdsqlite3_value_text16be()] on an input, or
-** [SQLITE_UTF16] if [tdsqlite3_value_text16()] is used, or [SQLITE_UTF8]
-** otherwise.  ^The same SQL function may be registered multiple times using
-** different preferred text encodings, with different implementations for
-** each encoding.
-** ^When multiple implementations of the same function are available, SQLite
-** will pick the one that involves the least amount of data conversion.
-**
-** ^The fourth parameter may optionally be ORed with [SQLITE_DETERMINISTIC]
-** to signal that the function will always return the same result given
-** the same inputs within a single SQL statement.  Most SQL functions are
-** deterministic.  The built-in [random()] SQL function is an example of a
-** function that is not deterministic.  The SQLite query planner is able to
-** perform additional optimizations on deterministic functions, so use
-** of the [SQLITE_DETERMINISTIC] flag is recommended where possible.
-**
-** ^The fourth parameter may also optionally include the [SQLITE_DIRECTONLY]
-** flag, which if present prevents the function from being invoked from
-** within VIEWs, TRIGGERs, CHECK constraints, generated column expressions,
-** index expressions, or the WHERE clause of partial indexes.
-**
-** <span style="background-color:#ffff90;">
-** For best security, the [SQLITE_DIRECTONLY] flag is recommended for
-** all application-defined SQL functions that do not need to be
-** used inside of triggers, view, CHECK constraints, or other elements of
-** the database schema.  This flags is especially recommended for SQL 
-** functions that have side effects or reveal internal application state.
-** Without this flag, an attacker might be able to modify the schema of
-** a database file to include invocations of the function with parameters
-** chosen by the attacker, which the application will then execute when
-** the database file is opened and read.
-** </span>
-**
-** ^(The fifth parameter is an arbitrary pointer.  The implementation of the
-** function can gain access to this pointer using [tdsqlite3_user_data()].)^
-**
-** ^The sixth, seventh and eighth parameters passed to the three
-** "tdsqlite3_create_function*" functions, xFunc, xStep and xFinal, are
-** pointers to C-language functions that implement the SQL function or
-** aggregate. ^A scalar SQL function requires an implementation of the xFunc
-** callback only; NULL pointers must be passed as the xStep and xFinal
-** parameters. ^An aggregate SQL function requires an implementation of xStep
-** and xFinal and NULL pointer must be passed for xFunc. ^To delete an existing
-** SQL function or aggregate, pass NULL pointers for all three function
-** callbacks.
-**
-** ^The sixth, seventh, eighth and ninth parameters (xStep, xFinal, xValue 
-** and xInverse) passed to tdsqlite3_create_window_function are pointers to
-** C-language callbacks that implement the new function. xStep and xFinal
-** must both be non-NULL. xValue and xInverse may either both be NULL, in
-** which case a regular aggregate function is created, or must both be 
-** non-NULL, in which case the new function may be used as either an aggregate
-** or aggregate window function. More details regarding the implementation
-** of aggregate window functions are 
-** [user-defined window functions|available here].
-**
-** ^(If the final parameter to tdsqlite3_create_function_v2() or
-** tdsqlite3_create_window_function() is not NULL, then it is destructor for
-** the application data pointer. The destructor is invoked when the function 
-** is deleted, either by being overloaded or when the database connection 
-** closes.)^ ^The destructor is also invoked if the call to 
-** tdsqlite3_create_function_v2() fails.  ^When the destructor callback is
-** invoked, it is passed a single argument which is a copy of the application
-** data pointer which was the fifth parameter to tdsqlite3_create_function_v2().
-**
-** ^It is permitted to register multiple implementations of the same
-** functions with the same name but with either differing numbers of
-** arguments or differing preferred text encodings.  ^SQLite will use
-** the implementation that most closely matches the way in which the
-** SQL function is used.  ^A function implementation with a non-negative
-** nArg parameter is a better match than a function implementation with
-** a negative nArg.  ^A function where the preferred text encoding
-** matches the database encoding is a better
-** match than a function where the encoding is different.  
-** ^A function where the encoding difference is between UTF16le and UTF16be
-** is a closer match than a function where the encoding difference is
-** between UTF8 and UTF16.
-**
-** ^Built-in functions may be overloaded by new application-defined functions.
-**
-** ^An application-defined function is permitted to call other
-** SQLite interfaces.  However, such calls must not
-** close the database connection nor finalize or reset the prepared
-** statement in which the function is running.
-*/
-SQLITE_API int tdsqlite3_create_function(
-  tdsqlite3 *db,
-  const char *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *pApp,
-  void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*)
-);
-SQLITE_API int tdsqlite3_create_function16(
-  tdsqlite3 *db,
-  const void *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *pApp,
-  void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*)
-);
-SQLITE_API int tdsqlite3_create_function_v2(
-  tdsqlite3 *db,
-  const char *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *pApp,
-  void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*),
-  void(*xDestroy)(void*)
-);
-SQLITE_API int tdsqlite3_create_window_function(
-  tdsqlite3 *db,
-  const char *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *pApp,
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*),
-  void (*xValue)(tdsqlite3_context*),
-  void (*xInverse)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void(*xDestroy)(void*)
-);
-
-/*
-** CAPI3REF: Text Encodings
-**
-** These constant define integer codes that represent the various
-** text encodings supported by SQLite.
-*/
-#define SQLITE_UTF8           1    /* IMP: R-37514-35566 */
-#define SQLITE_UTF16LE        2    /* IMP: R-03371-37637 */
-#define SQLITE_UTF16BE        3    /* IMP: R-51971-34154 */
-#define SQLITE_UTF16          4    /* Use native byte order */
-#define SQLITE_ANY            5    /* Deprecated */
-#define SQLITE_UTF16_ALIGNED  8    /* tdsqlite3_create_collation only */
-
-/*
-** CAPI3REF: Function Flags
-**
-** These constants may be ORed together with the 
-** [SQLITE_UTF8 | preferred text encoding] as the fourth argument
-** to [tdsqlite3_create_function()], [tdsqlite3_create_function16()], or
-** [tdsqlite3_create_function_v2()].
-**
-** <dl>
-** [[SQLITE_DETERMINISTIC]] <dt>SQLITE_DETERMINISTIC</dt><dd>
-** The SQLITE_DETERMINISTIC flag means that the new function always gives
-** the same output when the input parameters are the same.
-** The [abs|abs() function] is deterministic, for example, but
-** [randomblob|randomblob()] is not.  Functions must
-** be deterministic in order to be used in certain contexts such as
-** with the WHERE clause of [partial indexes] or in [generated columns].
-** SQLite might also optimize deterministic functions by factoring them
-** out of inner loops.
-** </dd>
-** 
-** [[SQLITE_DIRECTONLY]] <dt>SQLITE_DIRECTONLY</dt><dd>
-** The SQLITE_DIRECTONLY flag means that the function may only be invoked
-** from top-level SQL, and cannot be used in VIEWs or TRIGGERs nor in 
-** schema structures such as [CHECK constraints], [DEFAULT clauses],
-** [expression indexes], [partial indexes], or [generated columns].
-** The SQLITE_DIRECTONLY flags is a security feature which is recommended
-** for all [application-defined SQL functions], and especially for functions
-** that have side-effects or that could potentially leak sensitive
-** information.
-** </dd>
-**
-** [[SQLITE_INNOCUOUS]] <dt>SQLITE_INNOCUOUS</dt><dd>
-** The SQLITE_INNOCUOUS flag means that the function is unlikely
-** to cause problems even if misused.  An innocuous function should have
-** no side effects and should not depend on any values other than its
-** input parameters. The [abs|abs() function] is an example of an
-** innocuous function.
-** The [load_extension() SQL function] is not innocuous because of its
-** side effects.
-** <p> SQLITE_INNOCUOUS is similar to SQLITE_DETERMINISTIC, but is not
-** exactly the same.  The [random|random() function] is an example of a
-** function that is innocuous but not deterministic.
-** <p>Some heightened security settings
-** ([SQLITE_DBCONFIG_TRUSTED_SCHEMA] and [PRAGMA trusted_schema=OFF])
-** disable the use of SQL functions inside views and triggers and in
-** schema structures such as [CHECK constraints], [DEFAULT clauses],
-** [expression indexes], [partial indexes], and [generated columns] unless
-** the function is tagged with SQLITE_INNOCUOUS.  Most built-in functions
-** are innocuous.  Developers are advised to avoid using the
-** SQLITE_INNOCUOUS flag for application-defined functions unless the
-** function has been carefully audited and found to be free of potentially
-** security-adverse side-effects and information-leaks.
-** </dd>
-**
-** [[SQLITE_SUBTYPE]] <dt>SQLITE_SUBTYPE</dt><dd>
-** The SQLITE_SUBTYPE flag indicates to SQLite that a function may call
-** [tdsqlite3_value_subtype()] to inspect the sub-types of its arguments.
-** Specifying this flag makes no difference for scalar or aggregate user
-** functions. However, if it is not specified for a user-defined window
-** function, then any sub-types belonging to arguments passed to the window
-** function may be discarded before the window function is called (i.e.
-** tdsqlite3_value_subtype() will always return 0).
-** </dd>
-** </dl>
-*/
-#define SQLITE_DETERMINISTIC    0x000000800
-#define SQLITE_DIRECTONLY       0x000080000
-#define SQLITE_SUBTYPE          0x000100000
-#define SQLITE_INNOCUOUS        0x000200000
-
-/*
-** CAPI3REF: Deprecated Functions
-** DEPRECATED
-**
-** These functions are [deprecated].  In order to maintain
-** backwards compatibility with older code, these functions continue 
-** to be supported.  However, new applications should avoid
-** the use of these functions.  To encourage programmers to avoid
-** these functions, we will not explain what they do.
-*/
-#ifndef SQLITE_OMIT_DEPRECATED
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_aggregate_count(tdsqlite3_context*);
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_expired(tdsqlite3_stmt*);
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_transfer_bindings(tdsqlite3_stmt*, tdsqlite3_stmt*);
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_global_recover(void);
-SQLITE_API SQLITE_DEPRECATED void tdsqlite3_thread_cleanup(void);
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_memory_alarm(void(*)(void*,tdsqlite3_int64,int),
-                      void*,tdsqlite3_int64);
-#endif
-
-/*
-** CAPI3REF: Obtaining SQL Values
-** METHOD: tdsqlite3_value
-**
-** <b>Summary:</b>
-** <blockquote><table border=0 cellpadding=0 cellspacing=0>
-** <tr><td><b>tdsqlite3_value_blob</b><td>&rarr;<td>BLOB value
-** <tr><td><b>tdsqlite3_value_double</b><td>&rarr;<td>REAL value
-** <tr><td><b>tdsqlite3_value_int</b><td>&rarr;<td>32-bit INTEGER value
-** <tr><td><b>tdsqlite3_value_int64</b><td>&rarr;<td>64-bit INTEGER value
-** <tr><td><b>tdsqlite3_value_pointer</b><td>&rarr;<td>Pointer value
-** <tr><td><b>tdsqlite3_value_text</b><td>&rarr;<td>UTF-8 TEXT value
-** <tr><td><b>tdsqlite3_value_text16</b><td>&rarr;<td>UTF-16 TEXT value in
-** the native byteorder
-** <tr><td><b>tdsqlite3_value_text16be</b><td>&rarr;<td>UTF-16be TEXT value
-** <tr><td><b>tdsqlite3_value_text16le</b><td>&rarr;<td>UTF-16le TEXT value
-** <tr><td>&nbsp;<td>&nbsp;<td>&nbsp;
-** <tr><td><b>tdsqlite3_value_bytes</b><td>&rarr;<td>Size of a BLOB
-** or a UTF-8 TEXT in bytes
-** <tr><td><b>tdsqlite3_value_bytes16&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>Size of UTF-16
-** TEXT in bytes
-** <tr><td><b>tdsqlite3_value_type</b><td>&rarr;<td>Default
-** datatype of the value
-** <tr><td><b>tdsqlite3_value_numeric_type&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>Best numeric datatype of the value
-** <tr><td><b>tdsqlite3_value_nochange&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>True if the column is unchanged in an UPDATE
-** against a virtual table.
-** <tr><td><b>tdsqlite3_value_frombind&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>True if value originated from a [bound parameter]
-** </table></blockquote>
-**
-** <b>Details:</b>
-**
-** These routines extract type, size, and content information from
-** [protected tdsqlite3_value] objects.  Protected tdsqlite3_value objects
-** are used to pass parameter information into the functions that
-** implement [application-defined SQL functions] and [virtual tables].
-**
-** These routines work only with [protected tdsqlite3_value] objects.
-** Any attempt to use these routines on an [unprotected tdsqlite3_value]
-** is not threadsafe.
-**
-** ^These routines work just like the corresponding [column access functions]
-** except that these routines take a single [protected tdsqlite3_value] object
-** pointer instead of a [tdsqlite3_stmt*] pointer and an integer column number.
-**
-** ^The tdsqlite3_value_text16() interface extracts a UTF-16 string
-** in the native byte-order of the host machine.  ^The
-** tdsqlite3_value_text16be() and tdsqlite3_value_text16le() interfaces
-** extract UTF-16 strings as big-endian and little-endian respectively.
-**
-** ^If [tdsqlite3_value] object V was initialized 
-** using [tdsqlite3_bind_pointer(S,I,P,X,D)] or [tdsqlite3_result_pointer(C,P,X,D)]
-** and if X and Y are strings that compare equal according to strcmp(X,Y),
-** then tdsqlite3_value_pointer(V,Y) will return the pointer P.  ^Otherwise,
-** tdsqlite3_value_pointer(V,Y) returns a NULL. The tdsqlite3_bind_pointer() 
-** routine is part of the [pointer passing interface] added for SQLite 3.20.0.
-**
-** ^(The tdsqlite3_value_type(V) interface returns the
-** [SQLITE_INTEGER | datatype code] for the initial datatype of the
-** [tdsqlite3_value] object V. The returned value is one of [SQLITE_INTEGER],
-** [SQLITE_FLOAT], [SQLITE_TEXT], [SQLITE_BLOB], or [SQLITE_NULL].)^
-** Other interfaces might change the datatype for an tdsqlite3_value object.
-** For example, if the datatype is initially SQLITE_INTEGER and
-** tdsqlite3_value_text(V) is called to extract a text value for that
-** integer, then subsequent calls to tdsqlite3_value_type(V) might return
-** SQLITE_TEXT.  Whether or not a persistent internal datatype conversion
-** occurs is undefined and may change from one release of SQLite to the next.
-**
-** ^(The tdsqlite3_value_numeric_type() interface attempts to apply
-** numeric affinity to the value.  This means that an attempt is
-** made to convert the value to an integer or floating point.  If
-** such a conversion is possible without loss of information (in other
-** words, if the value is a string that looks like a number)
-** then the conversion is performed.  Otherwise no conversion occurs.
-** The [SQLITE_INTEGER | datatype] after conversion is returned.)^
-**
-** ^Within the [xUpdate] method of a [virtual table], the
-** tdsqlite3_value_nochange(X) interface returns true if and only if
-** the column corresponding to X is unchanged by the UPDATE operation
-** that the xUpdate method call was invoked to implement and if
-** and the prior [xColumn] method call that was invoked to extracted
-** the value for that column returned without setting a result (probably
-** because it queried [tdsqlite3_vtab_nochange()] and found that the column
-** was unchanging).  ^Within an [xUpdate] method, any value for which
-** tdsqlite3_value_nochange(X) is true will in all other respects appear
-** to be a NULL value.  If tdsqlite3_value_nochange(X) is invoked anywhere other
-** than within an [xUpdate] method call for an UPDATE statement, then
-** the return value is arbitrary and meaningless.
-**
-** ^The tdsqlite3_value_frombind(X) interface returns non-zero if the
-** value X originated from one of the [tdsqlite3_bind_int|tdsqlite3_bind()]
-** interfaces.  ^If X comes from an SQL literal value, or a table column,
-** or an expression, then tdsqlite3_value_frombind(X) returns zero.
-**
-** Please pay particular attention to the fact that the pointer returned
-** from [tdsqlite3_value_blob()], [tdsqlite3_value_text()], or
-** [tdsqlite3_value_text16()] can be invalidated by a subsequent call to
-** [tdsqlite3_value_bytes()], [tdsqlite3_value_bytes16()], [tdsqlite3_value_text()],
-** or [tdsqlite3_value_text16()].
-**
-** These routines must be called from the same thread as
-** the SQL function that supplied the [tdsqlite3_value*] parameters.
-**
-** As long as the input parameter is correct, these routines can only
-** fail if an out-of-memory error occurs during a format conversion.
-** Only the following subset of interfaces are subject to out-of-memory
-** errors:
-**
-** <ul>
-** <li> tdsqlite3_value_blob()
-** <li> tdsqlite3_value_text()
-** <li> tdsqlite3_value_text16()
-** <li> tdsqlite3_value_text16le()
-** <li> tdsqlite3_value_text16be()
-** <li> tdsqlite3_value_bytes()
-** <li> tdsqlite3_value_bytes16()
-** </ul>
-**
-** If an out-of-memory error occurs, then the return value from these
-** routines is the same as if the column had contained an SQL NULL value.
-** Valid SQL NULL returns can be distinguished from out-of-memory errors
-** by invoking the [tdsqlite3_errcode()] immediately after the suspect
-** return value is obtained and before any
-** other SQLite interface is called on the same [database connection].
-*/
-SQLITE_API const void *tdsqlite3_value_blob(tdsqlite3_value*);
-SQLITE_API double tdsqlite3_value_double(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_int(tdsqlite3_value*);
-SQLITE_API tdsqlite3_int64 tdsqlite3_value_int64(tdsqlite3_value*);
-SQLITE_API void *tdsqlite3_value_pointer(tdsqlite3_value*, const char*);
-SQLITE_API const unsigned char *tdsqlite3_value_text(tdsqlite3_value*);
-SQLITE_API const void *tdsqlite3_value_text16(tdsqlite3_value*);
-SQLITE_API const void *tdsqlite3_value_text16le(tdsqlite3_value*);
-SQLITE_API const void *tdsqlite3_value_text16be(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_bytes(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_bytes16(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_type(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_numeric_type(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_nochange(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_frombind(tdsqlite3_value*);
-
-/*
-** CAPI3REF: Finding The Subtype Of SQL Values
-** METHOD: tdsqlite3_value
-**
-** The tdsqlite3_value_subtype(V) function returns the subtype for
-** an [application-defined SQL function] argument V.  The subtype
-** information can be used to pass a limited amount of context from
-** one SQL function to another.  Use the [tdsqlite3_result_subtype()]
-** routine to set the subtype for the return value of an SQL function.
-*/
-SQLITE_API unsigned int tdsqlite3_value_subtype(tdsqlite3_value*);
-
-/*
-** CAPI3REF: Copy And Free SQL Values
-** METHOD: tdsqlite3_value
-**
-** ^The tdsqlite3_value_dup(V) interface makes a copy of the [tdsqlite3_value]
-** object D and returns a pointer to that copy.  ^The [tdsqlite3_value] returned
-** is a [protected tdsqlite3_value] object even if the input is not.
-** ^The tdsqlite3_value_dup(V) interface returns NULL if V is NULL or if a
-** memory allocation fails.
-**
-** ^The tdsqlite3_value_free(V) interface frees an [tdsqlite3_value] object
-** previously obtained from [tdsqlite3_value_dup()].  ^If V is a NULL pointer
-** then tdsqlite3_value_free(V) is a harmless no-op.
-*/
-SQLITE_API tdsqlite3_value *tdsqlite3_value_dup(const tdsqlite3_value*);
-SQLITE_API void tdsqlite3_value_free(tdsqlite3_value*);
-
-/*
-** CAPI3REF: Obtain Aggregate Function Context
-** METHOD: tdsqlite3_context
-**
-** Implementations of aggregate SQL functions use this
-** routine to allocate memory for storing their state.
-**
-** ^The first time the tdsqlite3_aggregate_context(C,N) routine is called 
-** for a particular aggregate function, SQLite allocates
-** N bytes of memory, zeroes out that memory, and returns a pointer
-** to the new memory. ^On second and subsequent calls to
-** tdsqlite3_aggregate_context() for the same aggregate function instance,
-** the same buffer is returned.  Sqlite3_aggregate_context() is normally
-** called once for each invocation of the xStep callback and then one
-** last time when the xFinal callback is invoked.  ^(When no rows match
-** an aggregate query, the xStep() callback of the aggregate function
-** implementation is never called and xFinal() is called exactly once.
-** In those cases, tdsqlite3_aggregate_context() might be called for the
-** first time from within xFinal().)^
-**
-** ^The tdsqlite3_aggregate_context(C,N) routine returns a NULL pointer 
-** when first called if N is less than or equal to zero or if a memory
-** allocate error occurs.
-**
-** ^(The amount of space allocated by tdsqlite3_aggregate_context(C,N) is
-** determined by the N parameter on first successful call.  Changing the
-** value of N in any subsequents call to tdsqlite3_aggregate_context() within
-** the same aggregate function instance will not resize the memory
-** allocation.)^  Within the xFinal callback, it is customary to set
-** N=0 in calls to tdsqlite3_aggregate_context(C,N) so that no 
-** pointless memory allocations occur.
-**
-** ^SQLite automatically frees the memory allocated by 
-** tdsqlite3_aggregate_context() when the aggregate query concludes.
-**
-** The first parameter must be a copy of the
-** [tdsqlite3_context | SQL function context] that is the first parameter
-** to the xStep or xFinal callback routine that implements the aggregate
-** function.
-**
-** This routine must be called from the same thread in which
-** the aggregate SQL function is running.
-*/
-SQLITE_API void *tdsqlite3_aggregate_context(tdsqlite3_context*, int nBytes);
-
-/*
-** CAPI3REF: User Data For Functions
-** METHOD: tdsqlite3_context
-**
-** ^The tdsqlite3_user_data() interface returns a copy of
-** the pointer that was the pUserData parameter (the 5th parameter)
-** of the [tdsqlite3_create_function()]
-** and [tdsqlite3_create_function16()] routines that originally
-** registered the application defined function.
-**
-** This routine must be called from the same thread in which
-** the application-defined function is running.
-*/
-SQLITE_API void *tdsqlite3_user_data(tdsqlite3_context*);
-
-/*
-** CAPI3REF: Database Connection For Functions
-** METHOD: tdsqlite3_context
-**
-** ^The tdsqlite3_context_db_handle() interface returns a copy of
-** the pointer to the [database connection] (the 1st parameter)
-** of the [tdsqlite3_create_function()]
-** and [tdsqlite3_create_function16()] routines that originally
-** registered the application defined function.
-*/
-SQLITE_API tdsqlite3 *tdsqlite3_context_db_handle(tdsqlite3_context*);
-
-/*
-** CAPI3REF: Function Auxiliary Data
-** METHOD: tdsqlite3_context
-**
-** These functions may be used by (non-aggregate) SQL functions to
-** associate metadata with argument values. If the same value is passed to
-** multiple invocations of the same SQL function during query execution, under
-** some circumstances the associated metadata may be preserved.  An example
-** of where this might be useful is in a regular-expression matching
-** function. The compiled version of the regular expression can be stored as
-** metadata associated with the pattern string.  
-** Then as long as the pattern string remains the same,
-** the compiled regular expression can be reused on multiple
-** invocations of the same function.
-**
-** ^The tdsqlite3_get_auxdata(C,N) interface returns a pointer to the metadata
-** associated by the tdsqlite3_set_auxdata(C,N,P,X) function with the Nth argument
-** value to the application-defined function.  ^N is zero for the left-most
-** function argument.  ^If there is no metadata
-** associated with the function argument, the tdsqlite3_get_auxdata(C,N) interface
-** returns a NULL pointer.
-**
-** ^The tdsqlite3_set_auxdata(C,N,P,X) interface saves P as metadata for the N-th
-** argument of the application-defined function.  ^Subsequent
-** calls to tdsqlite3_get_auxdata(C,N) return P from the most recent
-** tdsqlite3_set_auxdata(C,N,P,X) call if the metadata is still valid or
-** NULL if the metadata has been discarded.
-** ^After each call to tdsqlite3_set_auxdata(C,N,P,X) where X is not NULL,
-** SQLite will invoke the destructor function X with parameter P exactly
-** once, when the metadata is discarded.
-** SQLite is free to discard the metadata at any time, including: <ul>
-** <li> ^(when the corresponding function parameter changes)^, or
-** <li> ^(when [tdsqlite3_reset()] or [tdsqlite3_finalize()] is called for the
-**      SQL statement)^, or
-** <li> ^(when tdsqlite3_set_auxdata() is invoked again on the same
-**       parameter)^, or
-** <li> ^(during the original tdsqlite3_set_auxdata() call when a memory 
-**      allocation error occurs.)^ </ul>
-**
-** Note the last bullet in particular.  The destructor X in 
-** tdsqlite3_set_auxdata(C,N,P,X) might be called immediately, before the
-** tdsqlite3_set_auxdata() interface even returns.  Hence tdsqlite3_set_auxdata()
-** should be called near the end of the function implementation and the
-** function implementation should not make any use of P after
-** tdsqlite3_set_auxdata() has been called.
-**
-** ^(In practice, metadata is preserved between function calls for
-** function parameters that are compile-time constants, including literal
-** values and [parameters] and expressions composed from the same.)^
-**
-** The value of the N parameter to these interfaces should be non-negative.
-** Future enhancements may make use of negative N values to define new
-** kinds of function caching behavior.
-**
-** These routines must be called from the same thread in which
-** the SQL function is running.
-*/
-SQLITE_API void *tdsqlite3_get_auxdata(tdsqlite3_context*, int N);
-SQLITE_API void tdsqlite3_set_auxdata(tdsqlite3_context*, int N, void*, void (*)(void*));
-
-
-/*
-** CAPI3REF: Constants Defining Special Destructor Behavior
-**
-** These are special values for the destructor that is passed in as the
-** final argument to routines like [tdsqlite3_result_blob()].  ^If the destructor
-** argument is SQLITE_STATIC, it means that the content pointer is constant
-** and will never change.  It does not need to be destroyed.  ^The
-** SQLITE_TRANSIENT value means that the content will likely change in
-** the near future and that SQLite should make its own private copy of
-** the content before returning.
-**
-** The typedef is necessary to work around problems in certain
-** C++ compilers.
-*/
-typedef void (*tdsqlite3_destructor_type)(void*);
-#define SQLITE_STATIC      ((tdsqlite3_destructor_type)0)
-#define SQLITE_TRANSIENT   ((tdsqlite3_destructor_type)-1)
-
-/*
-** CAPI3REF: Setting The Result Of An SQL Function
-** METHOD: tdsqlite3_context
-**
-** These routines are used by the xFunc or xFinal callbacks that
-** implement SQL functions and aggregates.  See
-** [tdsqlite3_create_function()] and [tdsqlite3_create_function16()]
-** for additional information.
-**
-** These functions work very much like the [parameter binding] family of
-** functions used to bind values to host parameters in prepared statements.
-** Refer to the [SQL parameter] documentation for additional information.
-**
-** ^The tdsqlite3_result_blob() interface sets the result from
-** an application-defined function to be the BLOB whose content is pointed
-** to by the second parameter and which is N bytes long where N is the
-** third parameter.
-**
-** ^The tdsqlite3_result_zeroblob(C,N) and tdsqlite3_result_zeroblob64(C,N)
-** interfaces set the result of the application-defined function to be
-** a BLOB containing all zero bytes and N bytes in size.
-**
-** ^The tdsqlite3_result_double() interface sets the result from
-** an application-defined function to be a floating point value specified
-** by its 2nd argument.
-**
-** ^The tdsqlite3_result_error() and tdsqlite3_result_error16() functions
-** cause the implemented SQL function to throw an exception.
-** ^SQLite uses the string pointed to by the
-** 2nd parameter of tdsqlite3_result_error() or tdsqlite3_result_error16()
-** as the text of an error message.  ^SQLite interprets the error
-** message string from tdsqlite3_result_error() as UTF-8. ^SQLite
-** interprets the string from tdsqlite3_result_error16() as UTF-16 in native
-** byte order.  ^If the third parameter to tdsqlite3_result_error()
-** or tdsqlite3_result_error16() is negative then SQLite takes as the error
-** message all text up through the first zero character.
-** ^If the third parameter to tdsqlite3_result_error() or
-** tdsqlite3_result_error16() is non-negative then SQLite takes that many
-** bytes (not characters) from the 2nd parameter as the error message.
-** ^The tdsqlite3_result_error() and tdsqlite3_result_error16()
-** routines make a private copy of the error message text before
-** they return.  Hence, the calling function can deallocate or
-** modify the text after they return without harm.
-** ^The tdsqlite3_result_error_code() function changes the error code
-** returned by SQLite as a result of an error in a function.  ^By default,
-** the error code is SQLITE_ERROR.  ^A subsequent call to tdsqlite3_result_error()
-** or tdsqlite3_result_error16() resets the error code to SQLITE_ERROR.
-**
-** ^The tdsqlite3_result_error_toobig() interface causes SQLite to throw an
-** error indicating that a string or BLOB is too long to represent.
-**
-** ^The tdsqlite3_result_error_nomem() interface causes SQLite to throw an
-** error indicating that a memory allocation failed.
-**
-** ^The tdsqlite3_result_int() interface sets the return value
-** of the application-defined function to be the 32-bit signed integer
-** value given in the 2nd argument.
-** ^The tdsqlite3_result_int64() interface sets the return value
-** of the application-defined function to be the 64-bit signed integer
-** value given in the 2nd argument.
-**
-** ^The tdsqlite3_result_null() interface sets the return value
-** of the application-defined function to be NULL.
-**
-** ^The tdsqlite3_result_text(), tdsqlite3_result_text16(),
-** tdsqlite3_result_text16le(), and tdsqlite3_result_text16be() interfaces
-** set the return value of the application-defined function to be
-** a text string which is represented as UTF-8, UTF-16 native byte order,
-** UTF-16 little endian, or UTF-16 big endian, respectively.
-** ^The tdsqlite3_result_text64() interface sets the return value of an
-** application-defined function to be a text string in an encoding
-** specified by the fifth (and last) parameter, which must be one
-** of [SQLITE_UTF8], [SQLITE_UTF16], [SQLITE_UTF16BE], or [SQLITE_UTF16LE].
-** ^SQLite takes the text result from the application from
-** the 2nd parameter of the tdsqlite3_result_text* interfaces.
-** ^If the 3rd parameter to the tdsqlite3_result_text* interfaces
-** is negative, then SQLite takes result text from the 2nd parameter
-** through the first zero character.
-** ^If the 3rd parameter to the tdsqlite3_result_text* interfaces
-** is non-negative, then as many bytes (not characters) of the text
-** pointed to by the 2nd parameter are taken as the application-defined
-** function result.  If the 3rd parameter is non-negative, then it
-** must be the byte offset into the string where the NUL terminator would
-** appear if the string where NUL terminated.  If any NUL characters occur
-** in the string at a byte offset that is less than the value of the 3rd
-** parameter, then the resulting string will contain embedded NULs and the
-** result of expressions operating on strings with embedded NULs is undefined.
-** ^If the 4th parameter to the tdsqlite3_result_text* interfaces
-** or tdsqlite3_result_blob is a non-NULL pointer, then SQLite calls that
-** function as the destructor on the text or BLOB result when it has
-** finished using that result.
-** ^If the 4th parameter to the tdsqlite3_result_text* interfaces or to
-** tdsqlite3_result_blob is the special constant SQLITE_STATIC, then SQLite
-** assumes that the text or BLOB result is in constant space and does not
-** copy the content of the parameter nor call a destructor on the content
-** when it has finished using that result.
-** ^If the 4th parameter to the tdsqlite3_result_text* interfaces
-** or tdsqlite3_result_blob is the special constant SQLITE_TRANSIENT
-** then SQLite makes a copy of the result into space obtained
-** from [tdsqlite3_malloc()] before it returns.
-**
-** ^The tdsqlite3_result_value() interface sets the result of
-** the application-defined function to be a copy of the
-** [unprotected tdsqlite3_value] object specified by the 2nd parameter.  ^The
-** tdsqlite3_result_value() interface makes a copy of the [tdsqlite3_value]
-** so that the [tdsqlite3_value] specified in the parameter may change or
-** be deallocated after tdsqlite3_result_value() returns without harm.
-** ^A [protected tdsqlite3_value] object may always be used where an
-** [unprotected tdsqlite3_value] object is required, so either
-** kind of [tdsqlite3_value] object can be used with this interface.
-**
-** ^The tdsqlite3_result_pointer(C,P,T,D) interface sets the result to an
-** SQL NULL value, just like [tdsqlite3_result_null(C)], except that it
-** also associates the host-language pointer P or type T with that 
-** NULL value such that the pointer can be retrieved within an
-** [application-defined SQL function] using [tdsqlite3_value_pointer()].
-** ^If the D parameter is not NULL, then it is a pointer to a destructor
-** for the P parameter.  ^SQLite invokes D with P as its only argument
-** when SQLite is finished with P.  The T parameter should be a static
-** string and preferably a string literal. The tdsqlite3_result_pointer()
-** routine is part of the [pointer passing interface] added for SQLite 3.20.0.
-**
-** If these routines are called from within the different thread
-** than the one containing the application-defined function that received
-** the [tdsqlite3_context] pointer, the results are undefined.
-*/
-SQLITE_API void tdsqlite3_result_blob(tdsqlite3_context*, const void*, int, void(*)(void*));
-SQLITE_API void tdsqlite3_result_blob64(tdsqlite3_context*,const void*,
-                           tdsqlite3_uint64,void(*)(void*));
-SQLITE_API void tdsqlite3_result_double(tdsqlite3_context*, double);
-SQLITE_API void tdsqlite3_result_error(tdsqlite3_context*, const char*, int);
-SQLITE_API void tdsqlite3_result_error16(tdsqlite3_context*, const void*, int);
-SQLITE_API void tdsqlite3_result_error_toobig(tdsqlite3_context*);
-SQLITE_API void tdsqlite3_result_error_nomem(tdsqlite3_context*);
-SQLITE_API void tdsqlite3_result_error_code(tdsqlite3_context*, int);
-SQLITE_API void tdsqlite3_result_int(tdsqlite3_context*, int);
-SQLITE_API void tdsqlite3_result_int64(tdsqlite3_context*, tdsqlite3_int64);
-SQLITE_API void tdsqlite3_result_null(tdsqlite3_context*);
-SQLITE_API void tdsqlite3_result_text(tdsqlite3_context*, const char*, int, void(*)(void*));
-SQLITE_API void tdsqlite3_result_text64(tdsqlite3_context*, const char*,tdsqlite3_uint64,
-                           void(*)(void*), unsigned char encoding);
-SQLITE_API void tdsqlite3_result_text16(tdsqlite3_context*, const void*, int, void(*)(void*));
-SQLITE_API void tdsqlite3_result_text16le(tdsqlite3_context*, const void*, int,void(*)(void*));
-SQLITE_API void tdsqlite3_result_text16be(tdsqlite3_context*, const void*, int,void(*)(void*));
-SQLITE_API void tdsqlite3_result_value(tdsqlite3_context*, tdsqlite3_value*);
-SQLITE_API void tdsqlite3_result_pointer(tdsqlite3_context*, void*,const char*,void(*)(void*));
-SQLITE_API void tdsqlite3_result_zeroblob(tdsqlite3_context*, int n);
-SQLITE_API int tdsqlite3_result_zeroblob64(tdsqlite3_context*, tdsqlite3_uint64 n);
-
-
-/*
-** CAPI3REF: Setting The Subtype Of An SQL Function
-** METHOD: tdsqlite3_context
-**
-** The tdsqlite3_result_subtype(C,T) function causes the subtype of
-** the result from the [application-defined SQL function] with 
-** [tdsqlite3_context] C to be the value T.  Only the lower 8 bits 
-** of the subtype T are preserved in current versions of SQLite;
-** higher order bits are discarded.
-** The number of subtype bytes preserved by SQLite might increase
-** in future releases of SQLite.
-*/
-SQLITE_API void tdsqlite3_result_subtype(tdsqlite3_context*,unsigned int);
-
-/*
-** CAPI3REF: Define New Collating Sequences
-** METHOD: tdsqlite3
-**
-** ^These functions add, remove, or modify a [collation] associated
-** with the [database connection] specified as the first argument.
-**
-** ^The name of the collation is a UTF-8 string
-** for tdsqlite3_create_collation() and tdsqlite3_create_collation_v2()
-** and a UTF-16 string in native byte order for tdsqlite3_create_collation16().
-** ^Collation names that compare equal according to [tdsqlite3_strnicmp()] are
-** considered to be the same name.
-**
-** ^(The third argument (eTextRep) must be one of the constants:
-** <ul>
-** <li> [SQLITE_UTF8],
-** <li> [SQLITE_UTF16LE],
-** <li> [SQLITE_UTF16BE],
-** <li> [SQLITE_UTF16], or
-** <li> [SQLITE_UTF16_ALIGNED].
-** </ul>)^
-** ^The eTextRep argument determines the encoding of strings passed
-** to the collating function callback, xCompare.
-** ^The [SQLITE_UTF16] and [SQLITE_UTF16_ALIGNED] values for eTextRep
-** force strings to be UTF16 with native byte order.
-** ^The [SQLITE_UTF16_ALIGNED] value for eTextRep forces strings to begin
-** on an even byte address.
-**
-** ^The fourth argument, pArg, is an application data pointer that is passed
-** through as the first argument to the collating function callback.
-**
-** ^The fifth argument, xCompare, is a pointer to the collating function.
-** ^Multiple collating functions can be registered using the same name but
-** with different eTextRep parameters and SQLite will use whichever
-** function requires the least amount of data transformation.
-** ^If the xCompare argument is NULL then the collating function is
-** deleted.  ^When all collating functions having the same name are deleted,
-** that collation is no longer usable.
-**
-** ^The collating function callback is invoked with a copy of the pArg 
-** application data pointer and with two strings in the encoding specified
-** by the eTextRep argument.  The two integer parameters to the collating
-** function callback are the length of the two strings, in bytes. The collating
-** function must return an integer that is negative, zero, or positive
-** if the first string is less than, equal to, or greater than the second,
-** respectively.  A collating function must always return the same answer
-** given the same inputs.  If two or more collating functions are registered
-** to the same collation name (using different eTextRep values) then all
-** must give an equivalent answer when invoked with equivalent strings.
-** The collating function must obey the following properties for all
-** strings A, B, and C:
-**
-** <ol>
-** <li> If A==B then B==A.
-** <li> If A==B and B==C then A==C.
-** <li> If A&lt;B THEN B&gt;A.
-** <li> If A&lt;B and B&lt;C then A&lt;C.
-** </ol>
-**
-** If a collating function fails any of the above constraints and that
-** collating function is registered and used, then the behavior of SQLite
-** is undefined.
-**
-** ^The tdsqlite3_create_collation_v2() works like tdsqlite3_create_collation()
-** with the addition that the xDestroy callback is invoked on pArg when
-** the collating function is deleted.
-** ^Collating functions are deleted when they are overridden by later
-** calls to the collation creation functions or when the
-** [database connection] is closed using [tdsqlite3_close()].
-**
-** ^The xDestroy callback is <u>not</u> called if the 
-** tdsqlite3_create_collation_v2() function fails.  Applications that invoke
-** tdsqlite3_create_collation_v2() with a non-NULL xDestroy argument should 
-** check the return code and dispose of the application data pointer
-** themselves rather than expecting SQLite to deal with it for them.
-** This is different from every other SQLite interface.  The inconsistency 
-** is unfortunate but cannot be changed without breaking backwards 
-** compatibility.
-**
-** See also:  [tdsqlite3_collation_needed()] and [tdsqlite3_collation_needed16()].
-*/
-SQLITE_API int tdsqlite3_create_collation(
-  tdsqlite3*, 
-  const char *zName, 
-  int eTextRep, 
-  void *pArg,
-  int(*xCompare)(void*,int,const void*,int,const void*)
-);
-SQLITE_API int tdsqlite3_create_collation_v2(
-  tdsqlite3*, 
-  const char *zName, 
-  int eTextRep, 
-  void *pArg,
-  int(*xCompare)(void*,int,const void*,int,const void*),
-  void(*xDestroy)(void*)
-);
-SQLITE_API int tdsqlite3_create_collation16(
-  tdsqlite3*, 
-  const void *zName,
-  int eTextRep, 
-  void *pArg,
-  int(*xCompare)(void*,int,const void*,int,const void*)
-);
-
-/*
-** CAPI3REF: Collation Needed Callbacks
-** METHOD: tdsqlite3
-**
-** ^To avoid having to register all collation sequences before a database
-** can be used, a single callback function may be registered with the
-** [database connection] to be invoked whenever an undefined collation
-** sequence is required.
-**
-** ^If the function is registered using the tdsqlite3_collation_needed() API,
-** then it is passed the names of undefined collation sequences as strings
-** encoded in UTF-8. ^If tdsqlite3_collation_needed16() is used,
-** the names are passed as UTF-16 in machine native byte order.
-** ^A call to either function replaces the existing collation-needed callback.
-**
-** ^(When the callback is invoked, the first argument passed is a copy
-** of the second argument to tdsqlite3_collation_needed() or
-** tdsqlite3_collation_needed16().  The second argument is the database
-** connection.  The third argument is one of [SQLITE_UTF8], [SQLITE_UTF16BE],
-** or [SQLITE_UTF16LE], indicating the most desirable form of the collation
-** sequence function required.  The fourth parameter is the name of the
-** required collation sequence.)^
-**
-** The callback function should register the desired collation using
-** [tdsqlite3_create_collation()], [tdsqlite3_create_collation16()], or
-** [tdsqlite3_create_collation_v2()].
-*/
-SQLITE_API int tdsqlite3_collation_needed(
-  tdsqlite3*, 
-  void*, 
-  void(*)(void*,tdsqlite3*,int eTextRep,const char*)
-);
-SQLITE_API int tdsqlite3_collation_needed16(
-  tdsqlite3*, 
-  void*,
-  void(*)(void*,tdsqlite3*,int eTextRep,const void*)
-);
-
-#ifdef SQLITE_HAS_CODEC
-/*
-** Specify the key for an encrypted database.  This routine should be
-** called right after tdsqlite3_open().
-**
-** The code to implement this API is not available in the public release
-** of SQLite.
-*/
-SQLITE_API int tdsqlite3_key(
-  tdsqlite3 *db,                   /* Database to be rekeyed */
-  const void *pKey, int nKey     /* The key */
-);
-SQLITE_API int tdsqlite3_key_v2(
-  tdsqlite3 *db,                   /* Database to be rekeyed */
-  const char *zDbName,           /* Name of the database */
-  const void *pKey, int nKey     /* The key */
-);
-
-/*
-** Change the key on an open database.  If the current database is not
-** encrypted, this routine will encrypt it.  If pNew==0 or nNew==0, the
-** database is decrypted.
-**
-** The code to implement this API is not available in the public release
-** of SQLite.
-*/
-/* BEGIN SQLCIPHER
-   SQLCipher usage note:
-
-   If the current database is plaintext SQLCipher will NOT encrypt it.
-   If the current database is encrypted and pNew==0 or nNew==0, SQLCipher
-   will NOT decrypt it.
-
-   This routine will ONLY work on an already encrypted database in order
-   to change the key.
-
-   Conversion from plaintext-to-encrypted or encrypted-to-plaintext should
-   use an ATTACHed database and the sqlcipher_export() convenience function
-   as per the SQLCipher Documentation.
-
-   END SQLCIPHER
-*/
-SQLITE_API int tdsqlite3_rekey(
-  tdsqlite3 *db,                   /* Database to be rekeyed */
-  const void *pKey, int nKey     /* The new key */
-);
-SQLITE_API int tdsqlite3_rekey_v2(
-  tdsqlite3 *db,                   /* Database to be rekeyed */
-  const char *zDbName,           /* Name of the database */
-  const void *pKey, int nKey     /* The new key */
-);
-
-/*
-** Specify the activation key for a SEE database.  Unless 
-** activated, none of the SEE routines will work.
-*/
-SQLITE_API void tdsqlite3_activate_see(
-  const char *zPassPhrase        /* Activation phrase */
-);
-#endif
-
-#ifdef SQLITE_ENABLE_CEROD
-/*
-** Specify the activation key for a CEROD database.  Unless 
-** activated, none of the CEROD routines will work.
-*/
-SQLITE_API void tdsqlite3_activate_cerod(
-  const char *zPassPhrase        /* Activation phrase */
-);
-#endif
-
-/*
-** CAPI3REF: Suspend Execution For A Short Time
-**
-** The tdsqlite3_sleep() function causes the current thread to suspend execution
-** for at least a number of milliseconds specified in its parameter.
-**
-** If the operating system does not support sleep requests with
-** millisecond time resolution, then the time will be rounded up to
-** the nearest second. The number of milliseconds of sleep actually
-** requested from the operating system is returned.
-**
-** ^SQLite implements this interface by calling the xSleep()
-** method of the default [tdsqlite3_vfs] object.  If the xSleep() method
-** of the default VFS is not implemented correctly, or not implemented at
-** all, then the behavior of tdsqlite3_sleep() may deviate from the description
-** in the previous paragraphs.
-*/
-SQLITE_API int tdsqlite3_sleep(int);
-
-/*
-** CAPI3REF: Name Of The Folder Holding Temporary Files
-**
-** ^(If this global variable is made to point to a string which is
-** the name of a folder (a.k.a. directory), then all temporary files
-** created by SQLite when using a built-in [tdsqlite3_vfs | VFS]
-** will be placed in that directory.)^  ^If this variable
-** is a NULL pointer, then SQLite performs a search for an appropriate
-** temporary file directory.
-**
-** Applications are strongly discouraged from using this global variable.
-** It is required to set a temporary folder on Windows Runtime (WinRT).
-** But for all other platforms, it is highly recommended that applications
-** neither read nor write this variable.  This global variable is a relic
-** that exists for backwards compatibility of legacy applications and should
-** be avoided in new projects.
-**
-** It is not safe to read or modify this variable in more than one
-** thread at a time.  It is not safe to read or modify this variable
-** if a [database connection] is being used at the same time in a separate
-** thread.
-** It is intended that this variable be set once
-** as part of process initialization and before any SQLite interface
-** routines have been called and that this variable remain unchanged
-** thereafter.
-**
-** ^The [temp_store_directory pragma] may modify this variable and cause
-** it to point to memory obtained from [tdsqlite3_malloc].  ^Furthermore,
-** the [temp_store_directory pragma] always assumes that any string
-** that this variable points to is held in memory obtained from 
-** [tdsqlite3_malloc] and the pragma may attempt to free that memory
-** using [tdsqlite3_free].
-** Hence, if this variable is modified directly, either it should be
-** made NULL or made to point to memory obtained from [tdsqlite3_malloc]
-** or else the use of the [temp_store_directory pragma] should be avoided.
-** Except when requested by the [temp_store_directory pragma], SQLite
-** does not free the memory that tdsqlite3_temp_directory points to.  If
-** the application wants that memory to be freed, it must do
-** so itself, taking care to only do so after all [database connection]
-** objects have been destroyed.
-**
-** <b>Note to Windows Runtime users:</b>  The temporary directory must be set
-** prior to calling [tdsqlite3_open] or [tdsqlite3_open_v2].  Otherwise, various
-** features that require the use of temporary files may fail.  Here is an
-** example of how to do this using C++ with the Windows Runtime:
-**
-** <blockquote><pre>
-** LPCWSTR zPath = Windows::Storage::ApplicationData::Current->
-** &nbsp;     TemporaryFolder->Path->Data();
-** char zPathBuf&#91;MAX_PATH + 1&#93;;
-** memset(zPathBuf, 0, sizeof(zPathBuf));
-** WideCharToMultiByte(CP_UTF8, 0, zPath, -1, zPathBuf, sizeof(zPathBuf),
-** &nbsp;     NULL, NULL);
-** tdsqlite3_temp_directory = tdsqlite3_mprintf("%s", zPathBuf);
-** </pre></blockquote>
-*/
-SQLITE_API char *tdsqlite3_temp_directory;
-
-/*
-** CAPI3REF: Name Of The Folder Holding Database Files
-**
-** ^(If this global variable is made to point to a string which is
-** the name of a folder (a.k.a. directory), then all database files
-** specified with a relative pathname and created or accessed by
-** SQLite when using a built-in windows [tdsqlite3_vfs | VFS] will be assumed
-** to be relative to that directory.)^ ^If this variable is a NULL
-** pointer, then SQLite assumes that all database files specified
-** with a relative pathname are relative to the current directory
-** for the process.  Only the windows VFS makes use of this global
-** variable; it is ignored by the unix VFS.
-**
-** Changing the value of this variable while a database connection is
-** open can result in a corrupt database.
-**
-** It is not safe to read or modify this variable in more than one
-** thread at a time.  It is not safe to read or modify this variable
-** if a [database connection] is being used at the same time in a separate
-** thread.
-** It is intended that this variable be set once
-** as part of process initialization and before any SQLite interface
-** routines have been called and that this variable remain unchanged
-** thereafter.
-**
-** ^The [data_store_directory pragma] may modify this variable and cause
-** it to point to memory obtained from [tdsqlite3_malloc].  ^Furthermore,
-** the [data_store_directory pragma] always assumes that any string
-** that this variable points to is held in memory obtained from 
-** [tdsqlite3_malloc] and the pragma may attempt to free that memory
-** using [tdsqlite3_free].
-** Hence, if this variable is modified directly, either it should be
-** made NULL or made to point to memory obtained from [tdsqlite3_malloc]
-** or else the use of the [data_store_directory pragma] should be avoided.
-*/
-SQLITE_API char *tdsqlite3_data_directory;
-
-/*
-** CAPI3REF: Win32 Specific Interface
-**
-** These interfaces are available only on Windows.  The
-** [tdsqlite3_win32_set_directory] interface is used to set the value associated
-** with the [tdsqlite3_temp_directory] or [tdsqlite3_data_directory] variable, to
-** zValue, depending on the value of the type parameter.  The zValue parameter
-** should be NULL to cause the previous value to be freed via [tdsqlite3_free];
-** a non-NULL value will be copied into memory obtained from [tdsqlite3_malloc]
-** prior to being used.  The [tdsqlite3_win32_set_directory] interface returns
-** [SQLITE_OK] to indicate success, [SQLITE_ERROR] if the type is unsupported,
-** or [SQLITE_NOMEM] if memory could not be allocated.  The value of the
-** [tdsqlite3_data_directory] variable is intended to act as a replacement for
-** the current directory on the sub-platforms of Win32 where that concept is
-** not present, e.g. WinRT and UWP.  The [tdsqlite3_win32_set_directory8] and
-** [tdsqlite3_win32_set_directory16] interfaces behave exactly the same as the
-** tdsqlite3_win32_set_directory interface except the string parameter must be
-** UTF-8 or UTF-16, respectively.
-*/
-SQLITE_API int tdsqlite3_win32_set_directory(
-  unsigned long type, /* Identifier for directory being set or reset */
-  void *zValue        /* New value for directory being set or reset */
-);
-SQLITE_API int tdsqlite3_win32_set_directory8(unsigned long type, const char *zValue);
-SQLITE_API int tdsqlite3_win32_set_directory16(unsigned long type, const void *zValue);
-
-/*
-** CAPI3REF: Win32 Directory Types
-**
-** These macros are only available on Windows.  They define the allowed values
-** for the type argument to the [tdsqlite3_win32_set_directory] interface.
-*/
-#define SQLITE_WIN32_DATA_DIRECTORY_TYPE  1
-#define SQLITE_WIN32_TEMP_DIRECTORY_TYPE  2
-
-/*
-** CAPI3REF: Test For Auto-Commit Mode
-** KEYWORDS: {autocommit mode}
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_get_autocommit() interface returns non-zero or
-** zero if the given database connection is or is not in autocommit mode,
-** respectively.  ^Autocommit mode is on by default.
-** ^Autocommit mode is disabled by a [BEGIN] statement.
-** ^Autocommit mode is re-enabled by a [COMMIT] or [ROLLBACK].
-**
-** If certain kinds of errors occur on a statement within a multi-statement
-** transaction (errors including [SQLITE_FULL], [SQLITE_IOERR],
-** [SQLITE_NOMEM], [SQLITE_BUSY], and [SQLITE_INTERRUPT]) then the
-** transaction might be rolled back automatically.  The only way to
-** find out whether SQLite automatically rolled back the transaction after
-** an error is to use this function.
-**
-** If another thread changes the autocommit status of the database
-** connection while this routine is running, then the return value
-** is undefined.
-*/
-SQLITE_API int tdsqlite3_get_autocommit(tdsqlite3*);
-
-/*
-** CAPI3REF: Find The Database Handle Of A Prepared Statement
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_db_handle interface returns the [database connection] handle
-** to which a [prepared statement] belongs.  ^The [database connection]
-** returned by tdsqlite3_db_handle is the same [database connection]
-** that was the first argument
-** to the [tdsqlite3_prepare_v2()] call (or its variants) that was used to
-** create the statement in the first place.
-*/
-SQLITE_API tdsqlite3 *tdsqlite3_db_handle(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Return The Filename For A Database Connection
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_db_filename(D,N) interface returns a pointer to the filename
-** associated with database N of connection D.
-** ^If there is no attached database N on the database
-** connection D, or if database N is a temporary or in-memory database, then
-** this function will return either a NULL pointer or an empty string.
-**
-** ^The string value returned by this routine is owned and managed by
-** the database connection.  ^The value will be valid until the database N
-** is [DETACH]-ed or until the database connection closes.
-**
-** ^The filename returned by this function is the output of the
-** xFullPathname method of the [VFS].  ^In other words, the filename
-** will be an absolute pathname, even if the filename used
-** to open the database originally was a URI or relative pathname.
-**
-** If the filename pointer returned by this routine is not NULL, then it
-** can be used as the filename input parameter to these routines:
-** <ul>
-** <li> [tdsqlite3_uri_parameter()]
-** <li> [tdsqlite3_uri_boolean()]
-** <li> [tdsqlite3_uri_int64()]
-** <li> [tdsqlite3_filename_database()]
-** <li> [tdsqlite3_filename_journal()]
-** <li> [tdsqlite3_filename_wal()]
-** </ul>
-*/
-SQLITE_API const char *tdsqlite3_db_filename(tdsqlite3 *db, const char *zDbName);
-
-/*
-** CAPI3REF: Determine if a database is read-only
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_db_readonly(D,N) interface returns 1 if the database N
-** of connection D is read-only, 0 if it is read/write, or -1 if N is not
-** the name of a database on connection D.
-*/
-SQLITE_API int tdsqlite3_db_readonly(tdsqlite3 *db, const char *zDbName);
-
-/*
-** CAPI3REF: Find the next prepared statement
-** METHOD: tdsqlite3
-**
-** ^This interface returns a pointer to the next [prepared statement] after
-** pStmt associated with the [database connection] pDb.  ^If pStmt is NULL
-** then this interface returns a pointer to the first prepared statement
-** associated with the database connection pDb.  ^If no prepared statement
-** satisfies the conditions of this routine, it returns NULL.
-**
-** The [database connection] pointer D in a call to
-** [tdsqlite3_next_stmt(D,S)] must refer to an open database
-** connection and in particular must not be a NULL pointer.
-*/
-SQLITE_API tdsqlite3_stmt *tdsqlite3_next_stmt(tdsqlite3 *pDb, tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Commit And Rollback Notification Callbacks
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_commit_hook() interface registers a callback
-** function to be invoked whenever a transaction is [COMMIT | committed].
-** ^Any callback set by a previous call to tdsqlite3_commit_hook()
-** for the same database connection is overridden.
-** ^The tdsqlite3_rollback_hook() interface registers a callback
-** function to be invoked whenever a transaction is [ROLLBACK | rolled back].
-** ^Any callback set by a previous call to tdsqlite3_rollback_hook()
-** for the same database connection is overridden.
-** ^The pArg argument is passed through to the callback.
-** ^If the callback on a commit hook function returns non-zero,
-** then the commit is converted into a rollback.
-**
-** ^The tdsqlite3_commit_hook(D,C,P) and tdsqlite3_rollback_hook(D,C,P) functions
-** return the P argument from the previous call of the same function
-** on the same [database connection] D, or NULL for
-** the first call for each function on D.
-**
-** The commit and rollback hook callbacks are not reentrant.
-** The callback implementation must not do anything that will modify
-** the database connection that invoked the callback.  Any actions
-** to modify the database connection must be deferred until after the
-** completion of the [tdsqlite3_step()] call that triggered the commit
-** or rollback hook in the first place.
-** Note that running any other SQL statements, including SELECT statements,
-** or merely calling [tdsqlite3_prepare_v2()] and [tdsqlite3_step()] will modify
-** the database connections for the meaning of "modify" in this paragraph.
-**
-** ^Registering a NULL function disables the callback.
-**
-** ^When the commit hook callback routine returns zero, the [COMMIT]
-** operation is allowed to continue normally.  ^If the commit hook
-** returns non-zero, then the [COMMIT] is converted into a [ROLLBACK].
-** ^The rollback hook is invoked on a rollback that results from a commit
-** hook returning non-zero, just as it would be with any other rollback.
-**
-** ^For the purposes of this API, a transaction is said to have been
-** rolled back if an explicit "ROLLBACK" statement is executed, or
-** an error or constraint causes an implicit rollback to occur.
-** ^The rollback callback is not invoked if a transaction is
-** automatically rolled back because the database connection is closed.
-**
-** See also the [tdsqlite3_update_hook()] interface.
-*/
-SQLITE_API void *tdsqlite3_commit_hook(tdsqlite3*, int(*)(void*), void*);
-SQLITE_API void *tdsqlite3_rollback_hook(tdsqlite3*, void(*)(void *), void*);
-
-/*
-** CAPI3REF: Data Change Notification Callbacks
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_update_hook() interface registers a callback function
-** with the [database connection] identified by the first argument
-** to be invoked whenever a row is updated, inserted or deleted in
-** a [rowid table].
-** ^Any callback set by a previous call to this function
-** for the same database connection is overridden.
-**
-** ^The second argument is a pointer to the function to invoke when a
-** row is updated, inserted or deleted in a rowid table.
-** ^The first argument to the callback is a copy of the third argument
-** to tdsqlite3_update_hook().
-** ^The second callback argument is one of [SQLITE_INSERT], [SQLITE_DELETE],
-** or [SQLITE_UPDATE], depending on the operation that caused the callback
-** to be invoked.
-** ^The third and fourth arguments to the callback contain pointers to the
-** database and table name containing the affected row.
-** ^The final callback parameter is the [rowid] of the row.
-** ^In the case of an update, this is the [rowid] after the update takes place.
-**
-** ^(The update hook is not invoked when internal system tables are
-** modified (i.e. sqlite_master and sqlite_sequence).)^
-** ^The update hook is not invoked when [WITHOUT ROWID] tables are modified.
-**
-** ^In the current implementation, the update hook
-** is not invoked when conflicting rows are deleted because of an
-** [ON CONFLICT | ON CONFLICT REPLACE] clause.  ^Nor is the update hook
-** invoked when rows are deleted using the [truncate optimization].
-** The exceptions defined in this paragraph might change in a future
-** release of SQLite.
-**
-** The update hook implementation must not do anything that will modify
-** the database connection that invoked the update hook.  Any actions
-** to modify the database connection must be deferred until after the
-** completion of the [tdsqlite3_step()] call that triggered the update hook.
-** Note that [tdsqlite3_prepare_v2()] and [tdsqlite3_step()] both modify their
-** database connections for the meaning of "modify" in this paragraph.
-**
-** ^The tdsqlite3_update_hook(D,C,P) function
-** returns the P argument from the previous call
-** on the same [database connection] D, or NULL for
-** the first call on D.
-**
-** See also the [tdsqlite3_commit_hook()], [tdsqlite3_rollback_hook()],
-** and [tdsqlite3_preupdate_hook()] interfaces.
-*/
-SQLITE_API void *tdsqlite3_update_hook(
-  tdsqlite3*, 
-  void(*)(void *,int ,char const *,char const *,tdsqlite3_int64),
-  void*
-);
-
-/*
-** CAPI3REF: Enable Or Disable Shared Pager Cache
-**
-** ^(This routine enables or disables the sharing of the database cache
-** and schema data structures between [database connection | connections]
-** to the same database. Sharing is enabled if the argument is true
-** and disabled if the argument is false.)^
-**
-** ^Cache sharing is enabled and disabled for an entire process.
-** This is a change as of SQLite [version 3.5.0] ([dateof:3.5.0]). 
-** In prior versions of SQLite,
-** sharing was enabled or disabled for each thread separately.
-**
-** ^(The cache sharing mode set by this interface effects all subsequent
-** calls to [tdsqlite3_open()], [tdsqlite3_open_v2()], and [tdsqlite3_open16()].
-** Existing database connections continue to use the sharing mode
-** that was in effect at the time they were opened.)^
-**
-** ^(This routine returns [SQLITE_OK] if shared cache was enabled or disabled
-** successfully.  An [error code] is returned otherwise.)^
-**
-** ^Shared cache is disabled by default. It is recommended that it stay
-** that way.  In other words, do not use this routine.  This interface
-** continues to be provided for historical compatibility, but its use is
-** discouraged.  Any use of shared cache is discouraged.  If shared cache
-** must be used, it is recommended that shared cache only be enabled for
-** individual database connections using the [tdsqlite3_open_v2()] interface
-** with the [SQLITE_OPEN_SHAREDCACHE] flag.
-**
-** Note: This method is disabled on MacOS X 10.7 and iOS version 5.0
-** and will always return SQLITE_MISUSE. On those systems, 
-** shared cache mode should be enabled per-database connection via 
-** [tdsqlite3_open_v2()] with [SQLITE_OPEN_SHAREDCACHE].
-**
-** This interface is threadsafe on processors where writing a
-** 32-bit integer is atomic.
-**
-** See Also:  [SQLite Shared-Cache Mode]
-*/
-SQLITE_API int tdsqlite3_enable_shared_cache(int);
-
-/*
-** CAPI3REF: Attempt To Free Heap Memory
-**
-** ^The tdsqlite3_release_memory() interface attempts to free N bytes
-** of heap memory by deallocating non-essential memory allocations
-** held by the database library.   Memory used to cache database
-** pages to improve performance is an example of non-essential memory.
-** ^tdsqlite3_release_memory() returns the number of bytes actually freed,
-** which might be more or less than the amount requested.
-** ^The tdsqlite3_release_memory() routine is a no-op returning zero
-** if SQLite is not compiled with [SQLITE_ENABLE_MEMORY_MANAGEMENT].
-**
-** See also: [tdsqlite3_db_release_memory()]
-*/
-SQLITE_API int tdsqlite3_release_memory(int);
-
-/*
-** CAPI3REF: Free Memory Used By A Database Connection
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_db_release_memory(D) interface attempts to free as much heap
-** memory as possible from database connection D. Unlike the
-** [tdsqlite3_release_memory()] interface, this interface is in effect even
-** when the [SQLITE_ENABLE_MEMORY_MANAGEMENT] compile-time option is
-** omitted.
-**
-** See also: [tdsqlite3_release_memory()]
-*/
-SQLITE_API int tdsqlite3_db_release_memory(tdsqlite3*);
-
-/*
-** CAPI3REF: Impose A Limit On Heap Size
-**
-** These interfaces impose limits on the amount of heap memory that will be
-** by all database connections within a single process.
-**
-** ^The tdsqlite3_soft_heap_limit64() interface sets and/or queries the
-** soft limit on the amount of heap memory that may be allocated by SQLite.
-** ^SQLite strives to keep heap memory utilization below the soft heap
-** limit by reducing the number of pages held in the page cache
-** as heap memory usages approaches the limit.
-** ^The soft heap limit is "soft" because even though SQLite strives to stay
-** below the limit, it will exceed the limit rather than generate
-** an [SQLITE_NOMEM] error.  In other words, the soft heap limit 
-** is advisory only.
-**
-** ^The tdsqlite3_hard_heap_limit64(N) interface sets a hard upper bound of
-** N bytes on the amount of memory that will be allocated.  ^The
-** tdsqlite3_hard_heap_limit64(N) interface is similar to
-** tdsqlite3_soft_heap_limit64(N) except that memory allocations will fail
-** when the hard heap limit is reached.
-**
-** ^The return value from both tdsqlite3_soft_heap_limit64() and
-** tdsqlite3_hard_heap_limit64() is the size of
-** the heap limit prior to the call, or negative in the case of an
-** error.  ^If the argument N is negative
-** then no change is made to the heap limit.  Hence, the current
-** size of heap limits can be determined by invoking
-** tdsqlite3_soft_heap_limit64(-1) or tdsqlite3_hard_heap_limit(-1).
-**
-** ^Setting the heap limits to zero disables the heap limiter mechanism.
-**
-** ^The soft heap limit may not be greater than the hard heap limit.
-** ^If the hard heap limit is enabled and if tdsqlite3_soft_heap_limit(N)
-** is invoked with a value of N that is greater than the hard heap limit,
-** the the soft heap limit is set to the value of the hard heap limit.
-** ^The soft heap limit is automatically enabled whenever the hard heap
-** limit is enabled. ^When tdsqlite3_hard_heap_limit64(N) is invoked and
-** the soft heap limit is outside the range of 1..N, then the soft heap
-** limit is set to N.  ^Invoking tdsqlite3_soft_heap_limit64(0) when the
-** hard heap limit is enabled makes the soft heap limit equal to the
-** hard heap limit.
-**
-** The memory allocation limits can also be adjusted using
-** [PRAGMA soft_heap_limit] and [PRAGMA hard_heap_limit].
-**
-** ^(The heap limits are not enforced in the current implementation
-** if one or more of following conditions are true:
-**
-** <ul>
-** <li> The limit value is set to zero.
-** <li> Memory accounting is disabled using a combination of the
-**      [tdsqlite3_config]([SQLITE_CONFIG_MEMSTATUS],...) start-time option and
-**      the [SQLITE_DEFAULT_MEMSTATUS] compile-time option.
-** <li> An alternative page cache implementation is specified using
-**      [tdsqlite3_config]([SQLITE_CONFIG_PCACHE2],...).
-** <li> The page cache allocates from its own memory pool supplied
-**      by [tdsqlite3_config]([SQLITE_CONFIG_PAGECACHE],...) rather than
-**      from the heap.
-** </ul>)^
-**
-** The circumstances under which SQLite will enforce the heap limits may
-** changes in future releases of SQLite.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_soft_heap_limit64(tdsqlite3_int64 N);
-SQLITE_API tdsqlite3_int64 tdsqlite3_hard_heap_limit64(tdsqlite3_int64 N);
-
-/*
-** CAPI3REF: Deprecated Soft Heap Limit Interface
-** DEPRECATED
-**
-** This is a deprecated version of the [tdsqlite3_soft_heap_limit64()]
-** interface.  This routine is provided for historical compatibility
-** only.  All new applications should use the
-** [tdsqlite3_soft_heap_limit64()] interface rather than this one.
-*/
-SQLITE_API SQLITE_DEPRECATED void tdsqlite3_soft_heap_limit(int N);
-
-
-/*
-** CAPI3REF: Extract Metadata About A Column Of A Table
-** METHOD: tdsqlite3
-**
-** ^(The tdsqlite3_table_column_metadata(X,D,T,C,....) routine returns
-** information about column C of table T in database D
-** on [database connection] X.)^  ^The tdsqlite3_table_column_metadata()
-** interface returns SQLITE_OK and fills in the non-NULL pointers in
-** the final five arguments with appropriate values if the specified
-** column exists.  ^The tdsqlite3_table_column_metadata() interface returns
-** SQLITE_ERROR if the specified column does not exist.
-** ^If the column-name parameter to tdsqlite3_table_column_metadata() is a
-** NULL pointer, then this routine simply checks for the existence of the
-** table and returns SQLITE_OK if the table exists and SQLITE_ERROR if it
-** does not.  If the table name parameter T in a call to
-** tdsqlite3_table_column_metadata(X,D,T,C,...) is NULL then the result is
-** undefined behavior.
-**
-** ^The column is identified by the second, third and fourth parameters to
-** this function. ^(The second parameter is either the name of the database
-** (i.e. "main", "temp", or an attached database) containing the specified
-** table or NULL.)^ ^If it is NULL, then all attached databases are searched
-** for the table using the same algorithm used by the database engine to
-** resolve unqualified table references.
-**
-** ^The third and fourth parameters to this function are the table and column
-** name of the desired column, respectively.
-**
-** ^Metadata is returned by writing to the memory locations passed as the 5th
-** and subsequent parameters to this function. ^Any of these arguments may be
-** NULL, in which case the corresponding element of metadata is omitted.
-**
-** ^(<blockquote>
-** <table border="1">
-** <tr><th> Parameter <th> Output<br>Type <th>  Description
-**
-** <tr><td> 5th <td> const char* <td> Data type
-** <tr><td> 6th <td> const char* <td> Name of default collation sequence
-** <tr><td> 7th <td> int         <td> True if column has a NOT NULL constraint
-** <tr><td> 8th <td> int         <td> True if column is part of the PRIMARY KEY
-** <tr><td> 9th <td> int         <td> True if column is [AUTOINCREMENT]
-** </table>
-** </blockquote>)^
-**
-** ^The memory pointed to by the character pointers returned for the
-** declaration type and collation sequence is valid until the next
-** call to any SQLite API function.
-**
-** ^If the specified table is actually a view, an [error code] is returned.
-**
-** ^If the specified column is "rowid", "oid" or "_rowid_" and the table 
-** is not a [WITHOUT ROWID] table and an
-** [INTEGER PRIMARY KEY] column has been explicitly declared, then the output
-** parameters are set for the explicitly declared column. ^(If there is no
-** [INTEGER PRIMARY KEY] column, then the outputs
-** for the [rowid] are set as follows:
-**
-** <pre>
-**     data type: "INTEGER"
-**     collation sequence: "BINARY"
-**     not null: 0
-**     primary key: 1
-**     auto increment: 0
-** </pre>)^
-**
-** ^This function causes all database schemas to be read from disk and
-** parsed, if that has not already been done, and returns an error if
-** any errors are encountered while loading the schema.
-*/
-SQLITE_API int tdsqlite3_table_column_metadata(
-  tdsqlite3 *db,                /* Connection handle */
-  const char *zDbName,        /* Database name or NULL */
-  const char *zTableName,     /* Table name */
-  const char *zColumnName,    /* Column name */
-  char const **pzDataType,    /* OUTPUT: Declared data type */
-  char const **pzCollSeq,     /* OUTPUT: Collation sequence name */
-  int *pNotNull,              /* OUTPUT: True if NOT NULL constraint exists */
-  int *pPrimaryKey,           /* OUTPUT: True if column part of PK */
-  int *pAutoinc               /* OUTPUT: True if column is auto-increment */
-);
-
-/*
-** CAPI3REF: Load An Extension
-** METHOD: tdsqlite3
-**
-** ^This interface loads an SQLite extension library from the named file.
-**
-** ^The tdsqlite3_load_extension() interface attempts to load an
-** [SQLite extension] library contained in the file zFile.  If
-** the file cannot be loaded directly, attempts are made to load
-** with various operating-system specific extensions added.
-** So for example, if "samplelib" cannot be loaded, then names like
-** "samplelib.so" or "samplelib.dylib" or "samplelib.dll" might
-** be tried also.
-**
-** ^The entry point is zProc.
-** ^(zProc may be 0, in which case SQLite will try to come up with an
-** entry point name on its own.  It first tries "tdsqlite3_extension_init".
-** If that does not work, it constructs a name "tdsqlite3_X_init" where the
-** X is consists of the lower-case equivalent of all ASCII alphabetic
-** characters in the filename from the last "/" to the first following
-** "." and omitting any initial "lib".)^
-** ^The tdsqlite3_load_extension() interface returns
-** [SQLITE_OK] on success and [SQLITE_ERROR] if something goes wrong.
-** ^If an error occurs and pzErrMsg is not 0, then the
-** [tdsqlite3_load_extension()] interface shall attempt to
-** fill *pzErrMsg with error message text stored in memory
-** obtained from [tdsqlite3_malloc()]. The calling function
-** should free this memory by calling [tdsqlite3_free()].
-**
-** ^Extension loading must be enabled using
-** [tdsqlite3_enable_load_extension()] or
-** [tdsqlite3_db_config](db,[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION],1,NULL)
-** prior to calling this API,
-** otherwise an error will be returned.
-**
-** <b>Security warning:</b> It is recommended that the 
-** [SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION] method be used to enable only this
-** interface.  The use of the [tdsqlite3_enable_load_extension()] interface
-** should be avoided.  This will keep the SQL function [load_extension()]
-** disabled and prevent SQL injections from giving attackers
-** access to extension loading capabilities.
-**
-** See also the [load_extension() SQL function].
-*/
-SQLITE_API int tdsqlite3_load_extension(
-  tdsqlite3 *db,          /* Load the extension into this database connection */
-  const char *zFile,    /* Name of the shared library containing extension */
-  const char *zProc,    /* Entry point.  Derived from zFile if 0 */
-  char **pzErrMsg       /* Put error message here if not 0 */
-);
-
-/*
-** CAPI3REF: Enable Or Disable Extension Loading
-** METHOD: tdsqlite3
-**
-** ^So as not to open security holes in older applications that are
-** unprepared to deal with [extension loading], and as a means of disabling
-** [extension loading] while evaluating user-entered SQL, the following API
-** is provided to turn the [tdsqlite3_load_extension()] mechanism on and off.
-**
-** ^Extension loading is off by default.
-** ^Call the tdsqlite3_enable_load_extension() routine with onoff==1
-** to turn extension loading on and call it with onoff==0 to turn
-** it back off again.
-**
-** ^This interface enables or disables both the C-API
-** [tdsqlite3_load_extension()] and the SQL function [load_extension()].
-** ^(Use [tdsqlite3_db_config](db,[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION],..)
-** to enable or disable only the C-API.)^
-**
-** <b>Security warning:</b> It is recommended that extension loading
-** be enabled using the [SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION] method
-** rather than this interface, so the [load_extension()] SQL function
-** remains disabled. This will prevent SQL injections from giving attackers
-** access to extension loading capabilities.
-*/
-SQLITE_API int tdsqlite3_enable_load_extension(tdsqlite3 *db, int onoff);
-
-/*
-** CAPI3REF: Automatically Load Statically Linked Extensions
-**
-** ^This interface causes the xEntryPoint() function to be invoked for
-** each new [database connection] that is created.  The idea here is that
-** xEntryPoint() is the entry point for a statically linked [SQLite extension]
-** that is to be automatically loaded into all new database connections.
-**
-** ^(Even though the function prototype shows that xEntryPoint() takes
-** no arguments and returns void, SQLite invokes xEntryPoint() with three
-** arguments and expects an integer result as if the signature of the
-** entry point where as follows:
-**
-** <blockquote><pre>
-** &nbsp;  int xEntryPoint(
-** &nbsp;    tdsqlite3 *db,
-** &nbsp;    const char **pzErrMsg,
-** &nbsp;    const struct tdsqlite3_api_routines *pThunk
-** &nbsp;  );
-** </pre></blockquote>)^
-**
-** If the xEntryPoint routine encounters an error, it should make *pzErrMsg
-** point to an appropriate error message (obtained from [tdsqlite3_mprintf()])
-** and return an appropriate [error code].  ^SQLite ensures that *pzErrMsg
-** is NULL before calling the xEntryPoint().  ^SQLite will invoke
-** [tdsqlite3_free()] on *pzErrMsg after xEntryPoint() returns.  ^If any
-** xEntryPoint() returns an error, the [tdsqlite3_open()], [tdsqlite3_open16()],
-** or [tdsqlite3_open_v2()] call that provoked the xEntryPoint() will fail.
-**
-** ^Calling tdsqlite3_auto_extension(X) with an entry point X that is already
-** on the list of automatic extensions is a harmless no-op. ^No entry point
-** will be called more than once for each database connection that is opened.
-**
-** See also: [tdsqlite3_reset_auto_extension()]
-** and [tdsqlite3_cancel_auto_extension()]
-*/
-SQLITE_API int tdsqlite3_auto_extension(void(*xEntryPoint)(void));
-
-/*
-** CAPI3REF: Cancel Automatic Extension Loading
-**
-** ^The [tdsqlite3_cancel_auto_extension(X)] interface unregisters the
-** initialization routine X that was registered using a prior call to
-** [tdsqlite3_auto_extension(X)].  ^The [tdsqlite3_cancel_auto_extension(X)]
-** routine returns 1 if initialization routine X was successfully 
-** unregistered and it returns 0 if X was not on the list of initialization
-** routines.
-*/
-SQLITE_API int tdsqlite3_cancel_auto_extension(void(*xEntryPoint)(void));
-
-/*
-** CAPI3REF: Reset Automatic Extension Loading
-**
-** ^This interface disables all automatic extensions previously
-** registered using [tdsqlite3_auto_extension()].
-*/
-SQLITE_API void tdsqlite3_reset_auto_extension(void);
-
-/*
-** The interface to the virtual-table mechanism is currently considered
-** to be experimental.  The interface might change in incompatible ways.
-** If this is a problem for you, do not use the interface at this time.
-**
-** When the virtual-table mechanism stabilizes, we will declare the
-** interface fixed, support it indefinitely, and remove this comment.
-*/
-
-/*
-** Structures used by the virtual table interface
-*/
-typedef struct tdsqlite3_vtab tdsqlite3_vtab;
-typedef struct tdsqlite3_index_info tdsqlite3_index_info;
-typedef struct tdsqlite3_vtab_cursor tdsqlite3_vtab_cursor;
-typedef struct tdsqlite3_module tdsqlite3_module;
-
-/*
-** CAPI3REF: Virtual Table Object
-** KEYWORDS: tdsqlite3_module {virtual table module}
-**
-** This structure, sometimes called a "virtual table module", 
-** defines the implementation of a [virtual table].  
-** This structure consists mostly of methods for the module.
-**
-** ^A virtual table module is created by filling in a persistent
-** instance of this structure and passing a pointer to that instance
-** to [tdsqlite3_create_module()] or [tdsqlite3_create_module_v2()].
-** ^The registration remains valid until it is replaced by a different
-** module or until the [database connection] closes.  The content
-** of this structure must not change while it is registered with
-** any database connection.
-*/
-struct tdsqlite3_module {
-  int iVersion;
-  int (*xCreate)(tdsqlite3*, void *pAux,
-               int argc, const char *const*argv,
-               tdsqlite3_vtab **ppVTab, char**);
-  int (*xConnect)(tdsqlite3*, void *pAux,
-               int argc, const char *const*argv,
-               tdsqlite3_vtab **ppVTab, char**);
-  int (*xBestIndex)(tdsqlite3_vtab *pVTab, tdsqlite3_index_info*);
-  int (*xDisconnect)(tdsqlite3_vtab *pVTab);
-  int (*xDestroy)(tdsqlite3_vtab *pVTab);
-  int (*xOpen)(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCursor);
-  int (*xClose)(tdsqlite3_vtab_cursor*);
-  int (*xFilter)(tdsqlite3_vtab_cursor*, int idxNum, const char *idxStr,
-                int argc, tdsqlite3_value **argv);
-  int (*xNext)(tdsqlite3_vtab_cursor*);
-  int (*xEof)(tdsqlite3_vtab_cursor*);
-  int (*xColumn)(tdsqlite3_vtab_cursor*, tdsqlite3_context*, int);
-  int (*xRowid)(tdsqlite3_vtab_cursor*, tdsqlite3_int64 *pRowid);
-  int (*xUpdate)(tdsqlite3_vtab *, int, tdsqlite3_value **, tdsqlite3_int64 *);
-  int (*xBegin)(tdsqlite3_vtab *pVTab);
-  int (*xSync)(tdsqlite3_vtab *pVTab);
-  int (*xCommit)(tdsqlite3_vtab *pVTab);
-  int (*xRollback)(tdsqlite3_vtab *pVTab);
-  int (*xFindFunction)(tdsqlite3_vtab *pVtab, int nArg, const char *zName,
-                       void (**pxFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-                       void **ppArg);
-  int (*xRename)(tdsqlite3_vtab *pVtab, const char *zNew);
-  /* The methods above are in version 1 of the sqlite_module object. Those 
-  ** below are for version 2 and greater. */
-  int (*xSavepoint)(tdsqlite3_vtab *pVTab, int);
-  int (*xRelease)(tdsqlite3_vtab *pVTab, int);
-  int (*xRollbackTo)(tdsqlite3_vtab *pVTab, int);
-  /* The methods above are in versions 1 and 2 of the sqlite_module object.
-  ** Those below are for version 3 and greater. */
-  int (*xShadowName)(const char*);
-};
-
-/*
-** CAPI3REF: Virtual Table Indexing Information
-** KEYWORDS: tdsqlite3_index_info
-**
-** The tdsqlite3_index_info structure and its substructures is used as part
-** of the [virtual table] interface to
-** pass information into and receive the reply from the [xBestIndex]
-** method of a [virtual table module].  The fields under **Inputs** are the
-** inputs to xBestIndex and are read-only.  xBestIndex inserts its
-** results into the **Outputs** fields.
-**
-** ^(The aConstraint[] array records WHERE clause constraints of the form:
-**
-** <blockquote>column OP expr</blockquote>
-**
-** where OP is =, &lt;, &lt;=, &gt;, or &gt;=.)^  ^(The particular operator is
-** stored in aConstraint[].op using one of the
-** [SQLITE_INDEX_CONSTRAINT_EQ | SQLITE_INDEX_CONSTRAINT_ values].)^
-** ^(The index of the column is stored in
-** aConstraint[].iColumn.)^  ^(aConstraint[].usable is TRUE if the
-** expr on the right-hand side can be evaluated (and thus the constraint
-** is usable) and false if it cannot.)^
-**
-** ^The optimizer automatically inverts terms of the form "expr OP column"
-** and makes other simplifications to the WHERE clause in an attempt to
-** get as many WHERE clause terms into the form shown above as possible.
-** ^The aConstraint[] array only reports WHERE clause terms that are
-** relevant to the particular virtual table being queried.
-**
-** ^Information about the ORDER BY clause is stored in aOrderBy[].
-** ^Each term of aOrderBy records a column of the ORDER BY clause.
-**
-** The colUsed field indicates which columns of the virtual table may be
-** required by the current scan. Virtual table columns are numbered from
-** zero in the order in which they appear within the CREATE TABLE statement
-** passed to tdsqlite3_declare_vtab(). For the first 63 columns (columns 0-62),
-** the corresponding bit is set within the colUsed mask if the column may be
-** required by SQLite. If the table has at least 64 columns and any column
-** to the right of the first 63 is required, then bit 63 of colUsed is also
-** set. In other words, column iCol may be required if the expression
-** (colUsed & ((tdsqlite3_uint64)1 << (iCol>=63 ? 63 : iCol))) evaluates to 
-** non-zero.
-**
-** The [xBestIndex] method must fill aConstraintUsage[] with information
-** about what parameters to pass to xFilter.  ^If argvIndex>0 then
-** the right-hand side of the corresponding aConstraint[] is evaluated
-** and becomes the argvIndex-th entry in argv.  ^(If aConstraintUsage[].omit
-** is true, then the constraint is assumed to be fully handled by the
-** virtual table and might not be checked again by the byte code.)^ ^(The
-** aConstraintUsage[].omit flag is an optimization hint. When the omit flag
-** is left in its default setting of false, the constraint will always be
-** checked separately in byte code.  If the omit flag is change to true, then
-** the constraint may or may not be checked in byte code.  In other words,
-** when the omit flag is true there is no guarantee that the constraint will
-** not be checked again using byte code.)^
-**
-** ^The idxNum and idxPtr values are recorded and passed into the
-** [xFilter] method.
-** ^[tdsqlite3_free()] is used to free idxPtr if and only if
-** needToFreeIdxPtr is true.
-**
-** ^The orderByConsumed means that output from [xFilter]/[xNext] will occur in
-** the correct order to satisfy the ORDER BY clause so that no separate
-** sorting step is required.
-**
-** ^The estimatedCost value is an estimate of the cost of a particular
-** strategy. A cost of N indicates that the cost of the strategy is similar
-** to a linear scan of an SQLite table with N rows. A cost of log(N) 
-** indicates that the expense of the operation is similar to that of a
-** binary search on a unique indexed field of an SQLite table with N rows.
-**
-** ^The estimatedRows value is an estimate of the number of rows that
-** will be returned by the strategy.
-**
-** The xBestIndex method may optionally populate the idxFlags field with a 
-** mask of SQLITE_INDEX_SCAN_* flags. Currently there is only one such flag -
-** SQLITE_INDEX_SCAN_UNIQUE. If the xBestIndex method sets this flag, SQLite
-** assumes that the strategy may visit at most one row. 
-**
-** Additionally, if xBestIndex sets the SQLITE_INDEX_SCAN_UNIQUE flag, then
-** SQLite also assumes that if a call to the xUpdate() method is made as
-** part of the same statement to delete or update a virtual table row and the
-** implementation returns SQLITE_CONSTRAINT, then there is no need to rollback
-** any database changes. In other words, if the xUpdate() returns
-** SQLITE_CONSTRAINT, the database contents must be exactly as they were
-** before xUpdate was called. By contrast, if SQLITE_INDEX_SCAN_UNIQUE is not
-** set and xUpdate returns SQLITE_CONSTRAINT, any database changes made by
-** the xUpdate method are automatically rolled back by SQLite.
-**
-** IMPORTANT: The estimatedRows field was added to the tdsqlite3_index_info
-** structure for SQLite [version 3.8.2] ([dateof:3.8.2]). 
-** If a virtual table extension is
-** used with an SQLite version earlier than 3.8.2, the results of attempting 
-** to read or write the estimatedRows field are undefined (but are likely 
-** to include crashing the application). The estimatedRows field should
-** therefore only be used if [tdsqlite3_libversion_number()] returns a
-** value greater than or equal to 3008002. Similarly, the idxFlags field
-** was added for [version 3.9.0] ([dateof:3.9.0]). 
-** It may therefore only be used if
-** tdsqlite3_libversion_number() returns a value greater than or equal to
-** 3009000.
-*/
-struct tdsqlite3_index_info {
-  /* Inputs */
-  int nConstraint;           /* Number of entries in aConstraint */
-  struct tdsqlite3_index_constraint {
-     int iColumn;              /* Column constrained.  -1 for ROWID */
-     unsigned char op;         /* Constraint operator */
-     unsigned char usable;     /* True if this constraint is usable */
-     int iTermOffset;          /* Used internally - xBestIndex should ignore */
-  } *aConstraint;            /* Table of WHERE clause constraints */
-  int nOrderBy;              /* Number of terms in the ORDER BY clause */
-  struct tdsqlite3_index_orderby {
-     int iColumn;              /* Column number */
-     unsigned char desc;       /* True for DESC.  False for ASC. */
-  } *aOrderBy;               /* The ORDER BY clause */
-  /* Outputs */
-  struct tdsqlite3_index_constraint_usage {
-    int argvIndex;           /* if >0, constraint is part of argv to xFilter */
-    unsigned char omit;      /* Do not code a test for this constraint */
-  } *aConstraintUsage;
-  int idxNum;                /* Number used to identify the index */
-  char *idxStr;              /* String, possibly obtained from tdsqlite3_malloc */
-  int needToFreeIdxStr;      /* Free idxStr using tdsqlite3_free() if true */
-  int orderByConsumed;       /* True if output is already ordered */
-  double estimatedCost;           /* Estimated cost of using this index */
-  /* Fields below are only available in SQLite 3.8.2 and later */
-  tdsqlite3_int64 estimatedRows;    /* Estimated number of rows returned */
-  /* Fields below are only available in SQLite 3.9.0 and later */
-  int idxFlags;              /* Mask of SQLITE_INDEX_SCAN_* flags */
-  /* Fields below are only available in SQLite 3.10.0 and later */
-  tdsqlite3_uint64 colUsed;    /* Input: Mask of columns used by statement */
-};
-
-/*
-** CAPI3REF: Virtual Table Scan Flags
-**
-** Virtual table implementations are allowed to set the 
-** [tdsqlite3_index_info].idxFlags field to some combination of
-** these bits.
-*/
-#define SQLITE_INDEX_SCAN_UNIQUE      1     /* Scan visits at most 1 row */
-
-/*
-** CAPI3REF: Virtual Table Constraint Operator Codes
-**
-** These macros define the allowed values for the
-** [tdsqlite3_index_info].aConstraint[].op field.  Each value represents
-** an operator that is part of a constraint term in the wHERE clause of
-** a query that uses a [virtual table].
-*/
-#define SQLITE_INDEX_CONSTRAINT_EQ         2
-#define SQLITE_INDEX_CONSTRAINT_GT         4
-#define SQLITE_INDEX_CONSTRAINT_LE         8
-#define SQLITE_INDEX_CONSTRAINT_LT        16
-#define SQLITE_INDEX_CONSTRAINT_GE        32
-#define SQLITE_INDEX_CONSTRAINT_MATCH     64
-#define SQLITE_INDEX_CONSTRAINT_LIKE      65
-#define SQLITE_INDEX_CONSTRAINT_GLOB      66
-#define SQLITE_INDEX_CONSTRAINT_REGEXP    67
-#define SQLITE_INDEX_CONSTRAINT_NE        68
-#define SQLITE_INDEX_CONSTRAINT_ISNOT     69
-#define SQLITE_INDEX_CONSTRAINT_ISNOTNULL 70
-#define SQLITE_INDEX_CONSTRAINT_ISNULL    71
-#define SQLITE_INDEX_CONSTRAINT_IS        72
-#define SQLITE_INDEX_CONSTRAINT_FUNCTION 150
-
-/*
-** CAPI3REF: Register A Virtual Table Implementation
-** METHOD: tdsqlite3
-**
-** ^These routines are used to register a new [virtual table module] name.
-** ^Module names must be registered before
-** creating a new [virtual table] using the module and before using a
-** preexisting [virtual table] for the module.
-**
-** ^The module name is registered on the [database connection] specified
-** by the first parameter.  ^The name of the module is given by the 
-** second parameter.  ^The third parameter is a pointer to
-** the implementation of the [virtual table module].   ^The fourth
-** parameter is an arbitrary client data pointer that is passed through
-** into the [xCreate] and [xConnect] methods of the virtual table module
-** when a new virtual table is be being created or reinitialized.
-**
-** ^The tdsqlite3_create_module_v2() interface has a fifth parameter which
-** is a pointer to a destructor for the pClientData.  ^SQLite will
-** invoke the destructor function (if it is not NULL) when SQLite
-** no longer needs the pClientData pointer.  ^The destructor will also
-** be invoked if the call to tdsqlite3_create_module_v2() fails.
-** ^The tdsqlite3_create_module()
-** interface is equivalent to tdsqlite3_create_module_v2() with a NULL
-** destructor.
-**
-** ^If the third parameter (the pointer to the tdsqlite3_module object) is
-** NULL then no new module is create and any existing modules with the
-** same name are dropped.
-**
-** See also: [tdsqlite3_drop_modules()]
-*/
-SQLITE_API int tdsqlite3_create_module(
-  tdsqlite3 *db,               /* SQLite connection to register module with */
-  const char *zName,         /* Name of the module */
-  const tdsqlite3_module *p,   /* Methods for the module */
-  void *pClientData          /* Client data for xCreate/xConnect */
-);
-SQLITE_API int tdsqlite3_create_module_v2(
-  tdsqlite3 *db,               /* SQLite connection to register module with */
-  const char *zName,         /* Name of the module */
-  const tdsqlite3_module *p,   /* Methods for the module */
-  void *pClientData,         /* Client data for xCreate/xConnect */
-  void(*xDestroy)(void*)     /* Module destructor function */
-);
-
-/*
-** CAPI3REF: Remove Unnecessary Virtual Table Implementations
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_drop_modules(D,L) interface removes all virtual
-** table modules from database connection D except those named on list L.
-** The L parameter must be either NULL or a pointer to an array of pointers
-** to strings where the array is terminated by a single NULL pointer.
-** ^If the L parameter is NULL, then all virtual table modules are removed.
-**
-** See also: [tdsqlite3_create_module()]
-*/
-SQLITE_API int tdsqlite3_drop_modules(
-  tdsqlite3 *db,                /* Remove modules from this connection */
-  const char **azKeep         /* Except, do not remove the ones named here */
-);
-
-/*
-** CAPI3REF: Virtual Table Instance Object
-** KEYWORDS: tdsqlite3_vtab
-**
-** Every [virtual table module] implementation uses a subclass
-** of this object to describe a particular instance
-** of the [virtual table].  Each subclass will
-** be tailored to the specific needs of the module implementation.
-** The purpose of this superclass is to define certain fields that are
-** common to all module implementations.
-**
-** ^Virtual tables methods can set an error message by assigning a
-** string obtained from [tdsqlite3_mprintf()] to zErrMsg.  The method should
-** take care that any prior string is freed by a call to [tdsqlite3_free()]
-** prior to assigning a new string to zErrMsg.  ^After the error message
-** is delivered up to the client application, the string will be automatically
-** freed by tdsqlite3_free() and the zErrMsg field will be zeroed.
-*/
-struct tdsqlite3_vtab {
-  const tdsqlite3_module *pModule;  /* The module for this virtual table */
-  int nRef;                       /* Number of open cursors */
-  char *zErrMsg;                  /* Error message from tdsqlite3_mprintf() */
-  /* Virtual table implementations will typically add additional fields */
-};
-
-/*
-** CAPI3REF: Virtual Table Cursor Object
-** KEYWORDS: tdsqlite3_vtab_cursor {virtual table cursor}
-**
-** Every [virtual table module] implementation uses a subclass of the
-** following structure to describe cursors that point into the
-** [virtual table] and are used
-** to loop through the virtual table.  Cursors are created using the
-** [tdsqlite3_module.xOpen | xOpen] method of the module and are destroyed
-** by the [tdsqlite3_module.xClose | xClose] method.  Cursors are used
-** by the [xFilter], [xNext], [xEof], [xColumn], and [xRowid] methods
-** of the module.  Each module implementation will define
-** the content of a cursor structure to suit its own needs.
-**
-** This superclass exists in order to define fields of the cursor that
-** are common to all implementations.
-*/
-struct tdsqlite3_vtab_cursor {
-  tdsqlite3_vtab *pVtab;      /* Virtual table of this cursor */
-  /* Virtual table implementations will typically add additional fields */
-};
-
-/*
-** CAPI3REF: Declare The Schema Of A Virtual Table
-**
-** ^The [xCreate] and [xConnect] methods of a
-** [virtual table module] call this interface
-** to declare the format (the names and datatypes of the columns) of
-** the virtual tables they implement.
-*/
-SQLITE_API int tdsqlite3_declare_vtab(tdsqlite3*, const char *zSQL);
-
-/*
-** CAPI3REF: Overload A Function For A Virtual Table
-** METHOD: tdsqlite3
-**
-** ^(Virtual tables can provide alternative implementations of functions
-** using the [xFindFunction] method of the [virtual table module].  
-** But global versions of those functions
-** must exist in order to be overloaded.)^
-**
-** ^(This API makes sure a global version of a function with a particular
-** name and number of parameters exists.  If no such function exists
-** before this API is called, a new function is created.)^  ^The implementation
-** of the new function always causes an exception to be thrown.  So
-** the new function is not good for anything by itself.  Its only
-** purpose is to be a placeholder function that can be overloaded
-** by a [virtual table].
-*/
-SQLITE_API int tdsqlite3_overload_function(tdsqlite3*, const char *zFuncName, int nArg);
-
-/*
-** The interface to the virtual-table mechanism defined above (back up
-** to a comment remarkably similar to this one) is currently considered
-** to be experimental.  The interface might change in incompatible ways.
-** If this is a problem for you, do not use the interface at this time.
-**
-** When the virtual-table mechanism stabilizes, we will declare the
-** interface fixed, support it indefinitely, and remove this comment.
-*/
-
-/*
-** CAPI3REF: A Handle To An Open BLOB
-** KEYWORDS: {BLOB handle} {BLOB handles}
-**
-** An instance of this object represents an open BLOB on which
-** [tdsqlite3_blob_open | incremental BLOB I/O] can be performed.
-** ^Objects of this type are created by [tdsqlite3_blob_open()]
-** and destroyed by [tdsqlite3_blob_close()].
-** ^The [tdsqlite3_blob_read()] and [tdsqlite3_blob_write()] interfaces
-** can be used to read or write small subsections of the BLOB.
-** ^The [tdsqlite3_blob_bytes()] interface returns the size of the BLOB in bytes.
-*/
-typedef struct tdsqlite3_blob tdsqlite3_blob;
-
-/*
-** CAPI3REF: Open A BLOB For Incremental I/O
-** METHOD: tdsqlite3
-** CONSTRUCTOR: tdsqlite3_blob
-**
-** ^(This interfaces opens a [BLOB handle | handle] to the BLOB located
-** in row iRow, column zColumn, table zTable in database zDb;
-** in other words, the same BLOB that would be selected by:
-**
-** <pre>
-**     SELECT zColumn FROM zDb.zTable WHERE [rowid] = iRow;
-** </pre>)^
-**
-** ^(Parameter zDb is not the filename that contains the database, but 
-** rather the symbolic name of the database. For attached databases, this is
-** the name that appears after the AS keyword in the [ATTACH] statement.
-** For the main database file, the database name is "main". For TEMP
-** tables, the database name is "temp".)^
-**
-** ^If the flags parameter is non-zero, then the BLOB is opened for read
-** and write access. ^If the flags parameter is zero, the BLOB is opened for
-** read-only access.
-**
-** ^(On success, [SQLITE_OK] is returned and the new [BLOB handle] is stored
-** in *ppBlob. Otherwise an [error code] is returned and, unless the error
-** code is SQLITE_MISUSE, *ppBlob is set to NULL.)^ ^This means that, provided
-** the API is not misused, it is always safe to call [tdsqlite3_blob_close()] 
-** on *ppBlob after this function it returns.
-**
-** This function fails with SQLITE_ERROR if any of the following are true:
-** <ul>
-**   <li> ^(Database zDb does not exist)^, 
-**   <li> ^(Table zTable does not exist within database zDb)^, 
-**   <li> ^(Table zTable is a WITHOUT ROWID table)^, 
-**   <li> ^(Column zColumn does not exist)^,
-**   <li> ^(Row iRow is not present in the table)^,
-**   <li> ^(The specified column of row iRow contains a value that is not
-**         a TEXT or BLOB value)^,
-**   <li> ^(Column zColumn is part of an index, PRIMARY KEY or UNIQUE 
-**         constraint and the blob is being opened for read/write access)^,
-**   <li> ^([foreign key constraints | Foreign key constraints] are enabled, 
-**         column zColumn is part of a [child key] definition and the blob is
-**         being opened for read/write access)^.
-** </ul>
-**
-** ^Unless it returns SQLITE_MISUSE, this function sets the 
-** [database connection] error code and message accessible via 
-** [tdsqlite3_errcode()] and [tdsqlite3_errmsg()] and related functions. 
-**
-** A BLOB referenced by tdsqlite3_blob_open() may be read using the
-** [tdsqlite3_blob_read()] interface and modified by using
-** [tdsqlite3_blob_write()].  The [BLOB handle] can be moved to a
-** different row of the same table using the [tdsqlite3_blob_reopen()]
-** interface.  However, the column, table, or database of a [BLOB handle]
-** cannot be changed after the [BLOB handle] is opened.
-**
-** ^(If the row that a BLOB handle points to is modified by an
-** [UPDATE], [DELETE], or by [ON CONFLICT] side-effects
-** then the BLOB handle is marked as "expired".
-** This is true if any column of the row is changed, even a column
-** other than the one the BLOB handle is open on.)^
-** ^Calls to [tdsqlite3_blob_read()] and [tdsqlite3_blob_write()] for
-** an expired BLOB handle fail with a return code of [SQLITE_ABORT].
-** ^(Changes written into a BLOB prior to the BLOB expiring are not
-** rolled back by the expiration of the BLOB.  Such changes will eventually
-** commit if the transaction continues to completion.)^
-**
-** ^Use the [tdsqlite3_blob_bytes()] interface to determine the size of
-** the opened blob.  ^The size of a blob may not be changed by this
-** interface.  Use the [UPDATE] SQL command to change the size of a
-** blob.
-**
-** ^The [tdsqlite3_bind_zeroblob()] and [tdsqlite3_result_zeroblob()] interfaces
-** and the built-in [zeroblob] SQL function may be used to create a 
-** zero-filled blob to read or write using the incremental-blob interface.
-**
-** To avoid a resource leak, every open [BLOB handle] should eventually
-** be released by a call to [tdsqlite3_blob_close()].
-**
-** See also: [tdsqlite3_blob_close()],
-** [tdsqlite3_blob_reopen()], [tdsqlite3_blob_read()],
-** [tdsqlite3_blob_bytes()], [tdsqlite3_blob_write()].
-*/
-SQLITE_API int tdsqlite3_blob_open(
-  tdsqlite3*,
-  const char *zDb,
-  const char *zTable,
-  const char *zColumn,
-  tdsqlite3_int64 iRow,
-  int flags,
-  tdsqlite3_blob **ppBlob
-);
-
-/*
-** CAPI3REF: Move a BLOB Handle to a New Row
-** METHOD: tdsqlite3_blob
-**
-** ^This function is used to move an existing [BLOB handle] so that it points
-** to a different row of the same database table. ^The new row is identified
-** by the rowid value passed as the second argument. Only the row can be
-** changed. ^The database, table and column on which the blob handle is open
-** remain the same. Moving an existing [BLOB handle] to a new row is
-** faster than closing the existing handle and opening a new one.
-**
-** ^(The new row must meet the same criteria as for [tdsqlite3_blob_open()] -
-** it must exist and there must be either a blob or text value stored in
-** the nominated column.)^ ^If the new row is not present in the table, or if
-** it does not contain a blob or text value, or if another error occurs, an
-** SQLite error code is returned and the blob handle is considered aborted.
-** ^All subsequent calls to [tdsqlite3_blob_read()], [tdsqlite3_blob_write()] or
-** [tdsqlite3_blob_reopen()] on an aborted blob handle immediately return
-** SQLITE_ABORT. ^Calling [tdsqlite3_blob_bytes()] on an aborted blob handle
-** always returns zero.
-**
-** ^This function sets the database handle error code and message.
-*/
-SQLITE_API int tdsqlite3_blob_reopen(tdsqlite3_blob *, tdsqlite3_int64);
-
-/*
-** CAPI3REF: Close A BLOB Handle
-** DESTRUCTOR: tdsqlite3_blob
-**
-** ^This function closes an open [BLOB handle]. ^(The BLOB handle is closed
-** unconditionally.  Even if this routine returns an error code, the 
-** handle is still closed.)^
-**
-** ^If the blob handle being closed was opened for read-write access, and if
-** the database is in auto-commit mode and there are no other open read-write
-** blob handles or active write statements, the current transaction is
-** committed. ^If an error occurs while committing the transaction, an error
-** code is returned and the transaction rolled back.
-**
-** Calling this function with an argument that is not a NULL pointer or an
-** open blob handle results in undefined behaviour. ^Calling this routine 
-** with a null pointer (such as would be returned by a failed call to 
-** [tdsqlite3_blob_open()]) is a harmless no-op. ^Otherwise, if this function
-** is passed a valid open blob handle, the values returned by the 
-** tdsqlite3_errcode() and tdsqlite3_errmsg() functions are set before returning.
-*/
-SQLITE_API int tdsqlite3_blob_close(tdsqlite3_blob *);
-
-/*
-** CAPI3REF: Return The Size Of An Open BLOB
-** METHOD: tdsqlite3_blob
-**
-** ^Returns the size in bytes of the BLOB accessible via the 
-** successfully opened [BLOB handle] in its only argument.  ^The
-** incremental blob I/O routines can only read or overwriting existing
-** blob content; they cannot change the size of a blob.
-**
-** This routine only works on a [BLOB handle] which has been created
-** by a prior successful call to [tdsqlite3_blob_open()] and which has not
-** been closed by [tdsqlite3_blob_close()].  Passing any other pointer in
-** to this routine results in undefined and probably undesirable behavior.
-*/
-SQLITE_API int tdsqlite3_blob_bytes(tdsqlite3_blob *);
-
-/*
-** CAPI3REF: Read Data From A BLOB Incrementally
-** METHOD: tdsqlite3_blob
-**
-** ^(This function is used to read data from an open [BLOB handle] into a
-** caller-supplied buffer. N bytes of data are copied into buffer Z
-** from the open BLOB, starting at offset iOffset.)^
-**
-** ^If offset iOffset is less than N bytes from the end of the BLOB,
-** [SQLITE_ERROR] is returned and no data is read.  ^If N or iOffset is
-** less than zero, [SQLITE_ERROR] is returned and no data is read.
-** ^The size of the blob (and hence the maximum value of N+iOffset)
-** can be determined using the [tdsqlite3_blob_bytes()] interface.
-**
-** ^An attempt to read from an expired [BLOB handle] fails with an
-** error code of [SQLITE_ABORT].
-**
-** ^(On success, tdsqlite3_blob_read() returns SQLITE_OK.
-** Otherwise, an [error code] or an [extended error code] is returned.)^
-**
-** This routine only works on a [BLOB handle] which has been created
-** by a prior successful call to [tdsqlite3_blob_open()] and which has not
-** been closed by [tdsqlite3_blob_close()].  Passing any other pointer in
-** to this routine results in undefined and probably undesirable behavior.
-**
-** See also: [tdsqlite3_blob_write()].
-*/
-SQLITE_API int tdsqlite3_blob_read(tdsqlite3_blob *, void *Z, int N, int iOffset);
-
-/*
-** CAPI3REF: Write Data Into A BLOB Incrementally
-** METHOD: tdsqlite3_blob
-**
-** ^(This function is used to write data into an open [BLOB handle] from a
-** caller-supplied buffer. N bytes of data are copied from the buffer Z
-** into the open BLOB, starting at offset iOffset.)^
-**
-** ^(On success, tdsqlite3_blob_write() returns SQLITE_OK.
-** Otherwise, an  [error code] or an [extended error code] is returned.)^
-** ^Unless SQLITE_MISUSE is returned, this function sets the 
-** [database connection] error code and message accessible via 
-** [tdsqlite3_errcode()] and [tdsqlite3_errmsg()] and related functions. 
-**
-** ^If the [BLOB handle] passed as the first argument was not opened for
-** writing (the flags parameter to [tdsqlite3_blob_open()] was zero),
-** this function returns [SQLITE_READONLY].
-**
-** This function may only modify the contents of the BLOB; it is
-** not possible to increase the size of a BLOB using this API.
-** ^If offset iOffset is less than N bytes from the end of the BLOB,
-** [SQLITE_ERROR] is returned and no data is written. The size of the 
-** BLOB (and hence the maximum value of N+iOffset) can be determined 
-** using the [tdsqlite3_blob_bytes()] interface. ^If N or iOffset are less 
-** than zero [SQLITE_ERROR] is returned and no data is written.
-**
-** ^An attempt to write to an expired [BLOB handle] fails with an
-** error code of [SQLITE_ABORT].  ^Writes to the BLOB that occurred
-** before the [BLOB handle] expired are not rolled back by the
-** expiration of the handle, though of course those changes might
-** have been overwritten by the statement that expired the BLOB handle
-** or by other independent statements.
-**
-** This routine only works on a [BLOB handle] which has been created
-** by a prior successful call to [tdsqlite3_blob_open()] and which has not
-** been closed by [tdsqlite3_blob_close()].  Passing any other pointer in
-** to this routine results in undefined and probably undesirable behavior.
-**
-** See also: [tdsqlite3_blob_read()].
-*/
-SQLITE_API int tdsqlite3_blob_write(tdsqlite3_blob *, const void *z, int n, int iOffset);
-
-/*
-** CAPI3REF: Virtual File System Objects
-**
-** A virtual filesystem (VFS) is an [tdsqlite3_vfs] object
-** that SQLite uses to interact
-** with the underlying operating system.  Most SQLite builds come with a
-** single default VFS that is appropriate for the host computer.
-** New VFSes can be registered and existing VFSes can be unregistered.
-** The following interfaces are provided.
-**
-** ^The tdsqlite3_vfs_find() interface returns a pointer to a VFS given its name.
-** ^Names are case sensitive.
-** ^Names are zero-terminated UTF-8 strings.
-** ^If there is no match, a NULL pointer is returned.
-** ^If zVfsName is NULL then the default VFS is returned.
-**
-** ^New VFSes are registered with tdsqlite3_vfs_register().
-** ^Each new VFS becomes the default VFS if the makeDflt flag is set.
-** ^The same VFS can be registered multiple times without injury.
-** ^To make an existing VFS into the default VFS, register it again
-** with the makeDflt flag set.  If two different VFSes with the
-** same name are registered, the behavior is undefined.  If a
-** VFS is registered with a name that is NULL or an empty string,
-** then the behavior is undefined.
-**
-** ^Unregister a VFS with the tdsqlite3_vfs_unregister() interface.
-** ^(If the default VFS is unregistered, another VFS is chosen as
-** the default.  The choice for the new VFS is arbitrary.)^
-*/
-SQLITE_API tdsqlite3_vfs *tdsqlite3_vfs_find(const char *zVfsName);
-SQLITE_API int tdsqlite3_vfs_register(tdsqlite3_vfs*, int makeDflt);
-SQLITE_API int tdsqlite3_vfs_unregister(tdsqlite3_vfs*);
-
-/*
-** CAPI3REF: Mutexes
-**
-** The SQLite core uses these routines for thread
-** synchronization. Though they are intended for internal
-** use by SQLite, code that links against SQLite is
-** permitted to use any of these routines.
-**
-** The SQLite source code contains multiple implementations
-** of these mutex routines.  An appropriate implementation
-** is selected automatically at compile-time.  The following
-** implementations are available in the SQLite core:
-**
-** <ul>
-** <li>   SQLITE_MUTEX_PTHREADS
-** <li>   SQLITE_MUTEX_W32
-** <li>   SQLITE_MUTEX_NOOP
-** </ul>
-**
-** The SQLITE_MUTEX_NOOP implementation is a set of routines
-** that does no real locking and is appropriate for use in
-** a single-threaded application.  The SQLITE_MUTEX_PTHREADS and
-** SQLITE_MUTEX_W32 implementations are appropriate for use on Unix
-** and Windows.
-**
-** If SQLite is compiled with the SQLITE_MUTEX_APPDEF preprocessor
-** macro defined (with "-DSQLITE_MUTEX_APPDEF=1"), then no mutex
-** implementation is included with the library. In this case the
-** application must supply a custom mutex implementation using the
-** [SQLITE_CONFIG_MUTEX] option of the tdsqlite3_config() function
-** before calling tdsqlite3_initialize() or any other public tdsqlite3_
-** function that calls tdsqlite3_initialize().
-**
-** ^The tdsqlite3_mutex_alloc() routine allocates a new
-** mutex and returns a pointer to it. ^The tdsqlite3_mutex_alloc()
-** routine returns NULL if it is unable to allocate the requested
-** mutex.  The argument to tdsqlite3_mutex_alloc() must one of these
-** integer constants:
-**
-** <ul>
-** <li>  SQLITE_MUTEX_FAST
-** <li>  SQLITE_MUTEX_RECURSIVE
-** <li>  SQLITE_MUTEX_STATIC_MASTER
-** <li>  SQLITE_MUTEX_STATIC_MEM
-** <li>  SQLITE_MUTEX_STATIC_OPEN
-** <li>  SQLITE_MUTEX_STATIC_PRNG
-** <li>  SQLITE_MUTEX_STATIC_LRU
-** <li>  SQLITE_MUTEX_STATIC_PMEM
-** <li>  SQLITE_MUTEX_STATIC_APP1
-** <li>  SQLITE_MUTEX_STATIC_APP2
-** <li>  SQLITE_MUTEX_STATIC_APP3
-** <li>  SQLITE_MUTEX_STATIC_VFS1
-** <li>  SQLITE_MUTEX_STATIC_VFS2
-** <li>  SQLITE_MUTEX_STATIC_VFS3
-** </ul>
-**
-** ^The first two constants (SQLITE_MUTEX_FAST and SQLITE_MUTEX_RECURSIVE)
-** cause tdsqlite3_mutex_alloc() to create
-** a new mutex.  ^The new mutex is recursive when SQLITE_MUTEX_RECURSIVE
-** is used but not necessarily so when SQLITE_MUTEX_FAST is used.
-** The mutex implementation does not need to make a distinction
-** between SQLITE_MUTEX_RECURSIVE and SQLITE_MUTEX_FAST if it does
-** not want to.  SQLite will only request a recursive mutex in
-** cases where it really needs one.  If a faster non-recursive mutex
-** implementation is available on the host platform, the mutex subsystem
-** might return such a mutex in response to SQLITE_MUTEX_FAST.
-**
-** ^The other allowed parameters to tdsqlite3_mutex_alloc() (anything other
-** than SQLITE_MUTEX_FAST and SQLITE_MUTEX_RECURSIVE) each return
-** a pointer to a static preexisting mutex.  ^Nine static mutexes are
-** used by the current version of SQLite.  Future versions of SQLite
-** may add additional static mutexes.  Static mutexes are for internal
-** use by SQLite only.  Applications that use SQLite mutexes should
-** use only the dynamic mutexes returned by SQLITE_MUTEX_FAST or
-** SQLITE_MUTEX_RECURSIVE.
-**
-** ^Note that if one of the dynamic mutex parameters (SQLITE_MUTEX_FAST
-** or SQLITE_MUTEX_RECURSIVE) is used then tdsqlite3_mutex_alloc()
-** returns a different mutex on every call.  ^For the static
-** mutex types, the same mutex is returned on every call that has
-** the same type number.
-**
-** ^The tdsqlite3_mutex_free() routine deallocates a previously
-** allocated dynamic mutex.  Attempting to deallocate a static
-** mutex results in undefined behavior.
-**
-** ^The tdsqlite3_mutex_enter() and tdsqlite3_mutex_try() routines attempt
-** to enter a mutex.  ^If another thread is already within the mutex,
-** tdsqlite3_mutex_enter() will block and tdsqlite3_mutex_try() will return
-** SQLITE_BUSY.  ^The tdsqlite3_mutex_try() interface returns [SQLITE_OK]
-** upon successful entry.  ^(Mutexes created using
-** SQLITE_MUTEX_RECURSIVE can be entered multiple times by the same thread.
-** In such cases, the
-** mutex must be exited an equal number of times before another thread
-** can enter.)^  If the same thread tries to enter any mutex other
-** than an SQLITE_MUTEX_RECURSIVE more than once, the behavior is undefined.
-**
-** ^(Some systems (for example, Windows 95) do not support the operation
-** implemented by tdsqlite3_mutex_try().  On those systems, tdsqlite3_mutex_try()
-** will always return SQLITE_BUSY. The SQLite core only ever uses
-** tdsqlite3_mutex_try() as an optimization so this is acceptable 
-** behavior.)^
-**
-** ^The tdsqlite3_mutex_leave() routine exits a mutex that was
-** previously entered by the same thread.   The behavior
-** is undefined if the mutex is not currently entered by the
-** calling thread or is not currently allocated.
-**
-** ^If the argument to tdsqlite3_mutex_enter(), tdsqlite3_mutex_try(), or
-** tdsqlite3_mutex_leave() is a NULL pointer, then all three routines
-** behave as no-ops.
-**
-** See also: [tdsqlite3_mutex_held()] and [tdsqlite3_mutex_notheld()].
-*/
-SQLITE_API tdsqlite3_mutex *tdsqlite3_mutex_alloc(int);
-SQLITE_API void tdsqlite3_mutex_free(tdsqlite3_mutex*);
-SQLITE_API void tdsqlite3_mutex_enter(tdsqlite3_mutex*);
-SQLITE_API int tdsqlite3_mutex_try(tdsqlite3_mutex*);
-SQLITE_API void tdsqlite3_mutex_leave(tdsqlite3_mutex*);
-
-/*
-** CAPI3REF: Mutex Methods Object
-**
-** An instance of this structure defines the low-level routines
-** used to allocate and use mutexes.
-**
-** Usually, the default mutex implementations provided by SQLite are
-** sufficient, however the application has the option of substituting a custom
-** implementation for specialized deployments or systems for which SQLite
-** does not provide a suitable implementation. In this case, the application
-** creates and populates an instance of this structure to pass
-** to tdsqlite3_config() along with the [SQLITE_CONFIG_MUTEX] option.
-** Additionally, an instance of this structure can be used as an
-** output variable when querying the system for the current mutex
-** implementation, using the [SQLITE_CONFIG_GETMUTEX] option.
-**
-** ^The xMutexInit method defined by this structure is invoked as
-** part of system initialization by the tdsqlite3_initialize() function.
-** ^The xMutexInit routine is called by SQLite exactly once for each
-** effective call to [tdsqlite3_initialize()].
-**
-** ^The xMutexEnd method defined by this structure is invoked as
-** part of system shutdown by the tdsqlite3_shutdown() function. The
-** implementation of this method is expected to release all outstanding
-** resources obtained by the mutex methods implementation, especially
-** those obtained by the xMutexInit method.  ^The xMutexEnd()
-** interface is invoked exactly once for each call to [tdsqlite3_shutdown()].
-**
-** ^(The remaining seven methods defined by this structure (xMutexAlloc,
-** xMutexFree, xMutexEnter, xMutexTry, xMutexLeave, xMutexHeld and
-** xMutexNotheld) implement the following interfaces (respectively):
-**
-** <ul>
-**   <li>  [tdsqlite3_mutex_alloc()] </li>
-**   <li>  [tdsqlite3_mutex_free()] </li>
-**   <li>  [tdsqlite3_mutex_enter()] </li>
-**   <li>  [tdsqlite3_mutex_try()] </li>
-**   <li>  [tdsqlite3_mutex_leave()] </li>
-**   <li>  [tdsqlite3_mutex_held()] </li>
-**   <li>  [tdsqlite3_mutex_notheld()] </li>
-** </ul>)^
-**
-** The only difference is that the public tdsqlite3_XXX functions enumerated
-** above silently ignore any invocations that pass a NULL pointer instead
-** of a valid mutex handle. The implementations of the methods defined
-** by this structure are not required to handle this case. The results
-** of passing a NULL pointer instead of a valid mutex handle are undefined
-** (i.e. it is acceptable to provide an implementation that segfaults if
-** it is passed a NULL pointer).
-**
-** The xMutexInit() method must be threadsafe.  It must be harmless to
-** invoke xMutexInit() multiple times within the same process and without
-** intervening calls to xMutexEnd().  Second and subsequent calls to
-** xMutexInit() must be no-ops.
-**
-** xMutexInit() must not use SQLite memory allocation ([tdsqlite3_malloc()]
-** and its associates).  Similarly, xMutexAlloc() must not use SQLite memory
-** allocation for a static mutex.  ^However xMutexAlloc() may use SQLite
-** memory allocation for a fast or recursive mutex.
-**
-** ^SQLite will invoke the xMutexEnd() method when [tdsqlite3_shutdown()] is
-** called, but only if the prior call to xMutexInit returned SQLITE_OK.
-** If xMutexInit fails in any way, it is expected to clean up after itself
-** prior to returning.
-*/
-typedef struct tdsqlite3_mutex_methods tdsqlite3_mutex_methods;
-struct tdsqlite3_mutex_methods {
-  int (*xMutexInit)(void);
-  int (*xMutexEnd)(void);
-  tdsqlite3_mutex *(*xMutexAlloc)(int);
-  void (*xMutexFree)(tdsqlite3_mutex *);
-  void (*xMutexEnter)(tdsqlite3_mutex *);
-  int (*xMutexTry)(tdsqlite3_mutex *);
-  void (*xMutexLeave)(tdsqlite3_mutex *);
-  int (*xMutexHeld)(tdsqlite3_mutex *);
-  int (*xMutexNotheld)(tdsqlite3_mutex *);
-};
-
-/*
-** CAPI3REF: Mutex Verification Routines
-**
-** The tdsqlite3_mutex_held() and tdsqlite3_mutex_notheld() routines
-** are intended for use inside assert() statements.  The SQLite core
-** never uses these routines except inside an assert() and applications
-** are advised to follow the lead of the core.  The SQLite core only
-** provides implementations for these routines when it is compiled
-** with the SQLITE_DEBUG flag.  External mutex implementations
-** are only required to provide these routines if SQLITE_DEBUG is
-** defined and if NDEBUG is not defined.
-**
-** These routines should return true if the mutex in their argument
-** is held or not held, respectively, by the calling thread.
-**
-** The implementation is not required to provide versions of these
-** routines that actually work. If the implementation does not provide working
-** versions of these routines, it should at least provide stubs that always
-** return true so that one does not get spurious assertion failures.
-**
-** If the argument to tdsqlite3_mutex_held() is a NULL pointer then
-** the routine should return 1.   This seems counter-intuitive since
-** clearly the mutex cannot be held if it does not exist.  But
-** the reason the mutex does not exist is because the build is not
-** using mutexes.  And we do not want the assert() containing the
-** call to tdsqlite3_mutex_held() to fail, so a non-zero return is
-** the appropriate thing to do.  The tdsqlite3_mutex_notheld()
-** interface should also return 1 when given a NULL pointer.
-*/
-#ifndef NDEBUG
-SQLITE_API int tdsqlite3_mutex_held(tdsqlite3_mutex*);
-SQLITE_API int tdsqlite3_mutex_notheld(tdsqlite3_mutex*);
-#endif
-
-/*
-** CAPI3REF: Mutex Types
-**
-** The [tdsqlite3_mutex_alloc()] interface takes a single argument
-** which is one of these integer constants.
-**
-** The set of static mutexes may change from one SQLite release to the
-** next.  Applications that override the built-in mutex logic must be
-** prepared to accommodate additional static mutexes.
-*/
-#define SQLITE_MUTEX_FAST             0
-#define SQLITE_MUTEX_RECURSIVE        1
-#define SQLITE_MUTEX_STATIC_MASTER    2
-#define SQLITE_MUTEX_STATIC_MEM       3  /* tdsqlite3_malloc() */
-#define SQLITE_MUTEX_STATIC_MEM2      4  /* NOT USED */
-#define SQLITE_MUTEX_STATIC_OPEN      4  /* tdsqlite3BtreeOpen() */
-#define SQLITE_MUTEX_STATIC_PRNG      5  /* tdsqlite3_randomness() */
-#define SQLITE_MUTEX_STATIC_LRU       6  /* lru page list */
-#define SQLITE_MUTEX_STATIC_LRU2      7  /* NOT USED */
-#define SQLITE_MUTEX_STATIC_PMEM      7  /* tdsqlite3PageMalloc() */
-#define SQLITE_MUTEX_STATIC_APP1      8  /* For use by application */
-#define SQLITE_MUTEX_STATIC_APP2      9  /* For use by application */
-#define SQLITE_MUTEX_STATIC_APP3     10  /* For use by application */
-#define SQLITE_MUTEX_STATIC_VFS1     11  /* For use by built-in VFS */
-#define SQLITE_MUTEX_STATIC_VFS2     12  /* For use by extension VFS */
-#define SQLITE_MUTEX_STATIC_VFS3     13  /* For use by application VFS */
-
-/*
-** CAPI3REF: Retrieve the mutex for a database connection
-** METHOD: tdsqlite3
-**
-** ^This interface returns a pointer the [tdsqlite3_mutex] object that 
-** serializes access to the [database connection] given in the argument
-** when the [threading mode] is Serialized.
-** ^If the [threading mode] is Single-thread or Multi-thread then this
-** routine returns a NULL pointer.
-*/
-SQLITE_API tdsqlite3_mutex *tdsqlite3_db_mutex(tdsqlite3*);
-
-/*
-** CAPI3REF: Low-Level Control Of Database Files
-** METHOD: tdsqlite3
-** KEYWORDS: {file control}
-**
-** ^The [tdsqlite3_file_control()] interface makes a direct call to the
-** xFileControl method for the [tdsqlite3_io_methods] object associated
-** with a particular database identified by the second argument. ^The
-** name of the database is "main" for the main database or "temp" for the
-** TEMP database, or the name that appears after the AS keyword for
-** databases that are added using the [ATTACH] SQL command.
-** ^A NULL pointer can be used in place of "main" to refer to the
-** main database file.
-** ^The third and fourth parameters to this routine
-** are passed directly through to the second and third parameters of
-** the xFileControl method.  ^The return value of the xFileControl
-** method becomes the return value of this routine.
-**
-** A few opcodes for [tdsqlite3_file_control()] are handled directly
-** by the SQLite core and never invoke the 
-** tdsqlite3_io_methods.xFileControl method.
-** ^The [SQLITE_FCNTL_FILE_POINTER] value for the op parameter causes
-** a pointer to the underlying [tdsqlite3_file] object to be written into
-** the space pointed to by the 4th parameter.  The
-** [SQLITE_FCNTL_JOURNAL_POINTER] works similarly except that it returns
-** the [tdsqlite3_file] object associated with the journal file instead of
-** the main database.  The [SQLITE_FCNTL_VFS_POINTER] opcode returns
-** a pointer to the underlying [tdsqlite3_vfs] object for the file.
-** The [SQLITE_FCNTL_DATA_VERSION] returns the data version counter
-** from the pager.
-**
-** ^If the second parameter (zDbName) does not match the name of any
-** open database file, then SQLITE_ERROR is returned.  ^This error
-** code is not remembered and will not be recalled by [tdsqlite3_errcode()]
-** or [tdsqlite3_errmsg()].  The underlying xFileControl method might
-** also return SQLITE_ERROR.  There is no way to distinguish between
-** an incorrect zDbName and an SQLITE_ERROR return from the underlying
-** xFileControl method.
-**
-** See also: [file control opcodes]
-*/
-SQLITE_API int tdsqlite3_file_control(tdsqlite3*, const char *zDbName, int op, void*);
-
-/*
-** CAPI3REF: Testing Interface
-**
-** ^The tdsqlite3_test_control() interface is used to read out internal
-** state of SQLite and to inject faults into SQLite for testing
-** purposes.  ^The first parameter is an operation code that determines
-** the number, meaning, and operation of all subsequent parameters.
-**
-** This interface is not for use by applications.  It exists solely
-** for verifying the correct operation of the SQLite library.  Depending
-** on how the SQLite library is compiled, this interface might not exist.
-**
-** The details of the operation codes, their meanings, the parameters
-** they take, and what they do are all subject to change without notice.
-** Unlike most of the SQLite API, this function is not guaranteed to
-** operate consistently from one release to the next.
-*/
-SQLITE_API int tdsqlite3_test_control(int op, ...);
-
-/*
-** CAPI3REF: Testing Interface Operation Codes
-**
-** These constants are the valid operation code parameters used
-** as the first argument to [tdsqlite3_test_control()].
-**
-** These parameters and their meanings are subject to change
-** without notice.  These values are for testing purposes only.
-** Applications should not use any of these parameters or the
-** [tdsqlite3_test_control()] interface.
-*/
-#define SQLITE_TESTCTRL_FIRST                    5
-#define SQLITE_TESTCTRL_PRNG_SAVE                5
-#define SQLITE_TESTCTRL_PRNG_RESTORE             6
-#define SQLITE_TESTCTRL_PRNG_RESET               7  /* NOT USED */
-#define SQLITE_TESTCTRL_BITVEC_TEST              8
-#define SQLITE_TESTCTRL_FAULT_INSTALL            9
-#define SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS     10
-#define SQLITE_TESTCTRL_PENDING_BYTE            11
-#define SQLITE_TESTCTRL_ASSERT                  12
-#define SQLITE_TESTCTRL_ALWAYS                  13
-#define SQLITE_TESTCTRL_RESERVE                 14
-#define SQLITE_TESTCTRL_OPTIMIZATIONS           15
-#define SQLITE_TESTCTRL_ISKEYWORD               16  /* NOT USED */
-#define SQLITE_TESTCTRL_SCRATCHMALLOC           17  /* NOT USED */
-#define SQLITE_TESTCTRL_INTERNAL_FUNCTIONS      17
-#define SQLITE_TESTCTRL_LOCALTIME_FAULT         18
-#define SQLITE_TESTCTRL_EXPLAIN_STMT            19  /* NOT USED */
-#define SQLITE_TESTCTRL_ONCE_RESET_THRESHOLD    19
-#define SQLITE_TESTCTRL_NEVER_CORRUPT           20
-#define SQLITE_TESTCTRL_VDBE_COVERAGE           21
-#define SQLITE_TESTCTRL_BYTEORDER               22
-#define SQLITE_TESTCTRL_ISINIT                  23
-#define SQLITE_TESTCTRL_SORTER_MMAP             24
-#define SQLITE_TESTCTRL_IMPOSTER                25
-#define SQLITE_TESTCTRL_PARSER_COVERAGE         26
-#define SQLITE_TESTCTRL_RESULT_INTREAL          27
-#define SQLITE_TESTCTRL_PRNG_SEED               28
-#define SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS     29
-#define SQLITE_TESTCTRL_LAST                    29  /* Largest TESTCTRL */
-
-/*
-** CAPI3REF: SQL Keyword Checking
-**
-** These routines provide access to the set of SQL language keywords 
-** recognized by SQLite.  Applications can uses these routines to determine
-** whether or not a specific identifier needs to be escaped (for example,
-** by enclosing in double-quotes) so as not to confuse the parser.
-**
-** The tdsqlite3_keyword_count() interface returns the number of distinct
-** keywords understood by SQLite.
-**
-** The tdsqlite3_keyword_name(N,Z,L) interface finds the N-th keyword and
-** makes *Z point to that keyword expressed as UTF8 and writes the number
-** of bytes in the keyword into *L.  The string that *Z points to is not
-** zero-terminated.  The tdsqlite3_keyword_name(N,Z,L) routine returns
-** SQLITE_OK if N is within bounds and SQLITE_ERROR if not. If either Z
-** or L are NULL or invalid pointers then calls to
-** tdsqlite3_keyword_name(N,Z,L) result in undefined behavior.
-**
-** The tdsqlite3_keyword_check(Z,L) interface checks to see whether or not
-** the L-byte UTF8 identifier that Z points to is a keyword, returning non-zero
-** if it is and zero if not.
-**
-** The parser used by SQLite is forgiving.  It is often possible to use
-** a keyword as an identifier as long as such use does not result in a
-** parsing ambiguity.  For example, the statement
-** "CREATE TABLE BEGIN(REPLACE,PRAGMA,END);" is accepted by SQLite, and
-** creates a new table named "BEGIN" with three columns named
-** "REPLACE", "PRAGMA", and "END".  Nevertheless, best practice is to avoid
-** using keywords as identifiers.  Common techniques used to avoid keyword
-** name collisions include:
-** <ul>
-** <li> Put all identifier names inside double-quotes.  This is the official
-**      SQL way to escape identifier names.
-** <li> Put identifier names inside &#91;...&#93;.  This is not standard SQL,
-**      but it is what SQL Server does and so lots of programmers use this
-**      technique.
-** <li> Begin every identifier with the letter "Z" as no SQL keywords start
-**      with "Z".
-** <li> Include a digit somewhere in every identifier name.
-** </ul>
-**
-** Note that the number of keywords understood by SQLite can depend on
-** compile-time options.  For example, "VACUUM" is not a keyword if
-** SQLite is compiled with the [-DSQLITE_OMIT_VACUUM] option.  Also,
-** new keywords may be added to future releases of SQLite.
-*/
-SQLITE_API int tdsqlite3_keyword_count(void);
-SQLITE_API int tdsqlite3_keyword_name(int,const char**,int*);
-SQLITE_API int tdsqlite3_keyword_check(const char*,int);
-
-/*
-** CAPI3REF: Dynamic String Object
-** KEYWORDS: {dynamic string}
-**
-** An instance of the tdsqlite3_str object contains a dynamically-sized
-** string under construction.
-**
-** The lifecycle of an tdsqlite3_str object is as follows:
-** <ol>
-** <li> ^The tdsqlite3_str object is created using [tdsqlite3_str_new()].
-** <li> ^Text is appended to the tdsqlite3_str object using various
-** methods, such as [tdsqlite3_str_appendf()].
-** <li> ^The tdsqlite3_str object is destroyed and the string it created
-** is returned using the [tdsqlite3_str_finish()] interface.
-** </ol>
-*/
-typedef struct tdsqlite3_str tdsqlite3_str;
-
-/*
-** CAPI3REF: Create A New Dynamic String Object
-** CONSTRUCTOR: tdsqlite3_str
-**
-** ^The [tdsqlite3_str_new(D)] interface allocates and initializes
-** a new [tdsqlite3_str] object.  To avoid memory leaks, the object returned by
-** [tdsqlite3_str_new()] must be freed by a subsequent call to 
-** [tdsqlite3_str_finish(X)].
-**
-** ^The [tdsqlite3_str_new(D)] interface always returns a pointer to a
-** valid [tdsqlite3_str] object, though in the event of an out-of-memory
-** error the returned object might be a special singleton that will
-** silently reject new text, always return SQLITE_NOMEM from 
-** [tdsqlite3_str_errcode()], always return 0 for 
-** [tdsqlite3_str_length()], and always return NULL from
-** [tdsqlite3_str_finish(X)].  It is always safe to use the value
-** returned by [tdsqlite3_str_new(D)] as the tdsqlite3_str parameter
-** to any of the other [tdsqlite3_str] methods.
-**
-** The D parameter to [tdsqlite3_str_new(D)] may be NULL.  If the
-** D parameter in [tdsqlite3_str_new(D)] is not NULL, then the maximum
-** length of the string contained in the [tdsqlite3_str] object will be
-** the value set for [tdsqlite3_limit](D,[SQLITE_LIMIT_LENGTH]) instead
-** of [SQLITE_MAX_LENGTH].
-*/
-SQLITE_API tdsqlite3_str *tdsqlite3_str_new(tdsqlite3*);
-
-/*
-** CAPI3REF: Finalize A Dynamic String
-** DESTRUCTOR: tdsqlite3_str
-**
-** ^The [tdsqlite3_str_finish(X)] interface destroys the tdsqlite3_str object X
-** and returns a pointer to a memory buffer obtained from [tdsqlite3_malloc64()]
-** that contains the constructed string.  The calling application should
-** pass the returned value to [tdsqlite3_free()] to avoid a memory leak.
-** ^The [tdsqlite3_str_finish(X)] interface may return a NULL pointer if any
-** errors were encountered during construction of the string.  ^The
-** [tdsqlite3_str_finish(X)] interface will also return a NULL pointer if the
-** string in [tdsqlite3_str] object X is zero bytes long.
-*/
-SQLITE_API char *tdsqlite3_str_finish(tdsqlite3_str*);
-
-/*
-** CAPI3REF: Add Content To A Dynamic String
-** METHOD: tdsqlite3_str
-**
-** These interfaces add content to an tdsqlite3_str object previously obtained
-** from [tdsqlite3_str_new()].
-**
-** ^The [tdsqlite3_str_appendf(X,F,...)] and 
-** [tdsqlite3_str_vappendf(X,F,V)] interfaces uses the [built-in printf]
-** functionality of SQLite to append formatted text onto the end of 
-** [tdsqlite3_str] object X.
-**
-** ^The [tdsqlite3_str_append(X,S,N)] method appends exactly N bytes from string S
-** onto the end of the [tdsqlite3_str] object X.  N must be non-negative.
-** S must contain at least N non-zero bytes of content.  To append a
-** zero-terminated string in its entirety, use the [tdsqlite3_str_appendall()]
-** method instead.
-**
-** ^The [tdsqlite3_str_appendall(X,S)] method appends the complete content of
-** zero-terminated string S onto the end of [tdsqlite3_str] object X.
-**
-** ^The [tdsqlite3_str_appendchar(X,N,C)] method appends N copies of the
-** single-byte character C onto the end of [tdsqlite3_str] object X.
-** ^This method can be used, for example, to add whitespace indentation.
-**
-** ^The [tdsqlite3_str_reset(X)] method resets the string under construction
-** inside [tdsqlite3_str] object X back to zero bytes in length.  
-**
-** These methods do not return a result code.  ^If an error occurs, that fact
-** is recorded in the [tdsqlite3_str] object and can be recovered by a
-** subsequent call to [tdsqlite3_str_errcode(X)].
-*/
-SQLITE_API void tdsqlite3_str_appendf(tdsqlite3_str*, const char *zFormat, ...);
-SQLITE_API void tdsqlite3_str_vappendf(tdsqlite3_str*, const char *zFormat, va_list);
-SQLITE_API void tdsqlite3_str_append(tdsqlite3_str*, const char *zIn, int N);
-SQLITE_API void tdsqlite3_str_appendall(tdsqlite3_str*, const char *zIn);
-SQLITE_API void tdsqlite3_str_appendchar(tdsqlite3_str*, int N, char C);
-SQLITE_API void tdsqlite3_str_reset(tdsqlite3_str*);
-
-/*
-** CAPI3REF: Status Of A Dynamic String
-** METHOD: tdsqlite3_str
-**
-** These interfaces return the current status of an [tdsqlite3_str] object.
-**
-** ^If any prior errors have occurred while constructing the dynamic string
-** in tdsqlite3_str X, then the [tdsqlite3_str_errcode(X)] method will return
-** an appropriate error code.  ^The [tdsqlite3_str_errcode(X)] method returns
-** [SQLITE_NOMEM] following any out-of-memory error, or
-** [SQLITE_TOOBIG] if the size of the dynamic string exceeds
-** [SQLITE_MAX_LENGTH], or [SQLITE_OK] if there have been no errors.
-**
-** ^The [tdsqlite3_str_length(X)] method returns the current length, in bytes,
-** of the dynamic string under construction in [tdsqlite3_str] object X.
-** ^The length returned by [tdsqlite3_str_length(X)] does not include the
-** zero-termination byte.
-**
-** ^The [tdsqlite3_str_value(X)] method returns a pointer to the current
-** content of the dynamic string under construction in X.  The value
-** returned by [tdsqlite3_str_value(X)] is managed by the tdsqlite3_str object X
-** and might be freed or altered by any subsequent method on the same
-** [tdsqlite3_str] object.  Applications must not used the pointer returned
-** [tdsqlite3_str_value(X)] after any subsequent method call on the same
-** object.  ^Applications may change the content of the string returned
-** by [tdsqlite3_str_value(X)] as long as they do not write into any bytes
-** outside the range of 0 to [tdsqlite3_str_length(X)] and do not read or
-** write any byte after any subsequent tdsqlite3_str method call.
-*/
-SQLITE_API int tdsqlite3_str_errcode(tdsqlite3_str*);
-SQLITE_API int tdsqlite3_str_length(tdsqlite3_str*);
-SQLITE_API char *tdsqlite3_str_value(tdsqlite3_str*);
-
-/*
-** CAPI3REF: SQLite Runtime Status
-**
-** ^These interfaces are used to retrieve runtime status information
-** about the performance of SQLite, and optionally to reset various
-** highwater marks.  ^The first argument is an integer code for
-** the specific parameter to measure.  ^(Recognized integer codes
-** are of the form [status parameters | SQLITE_STATUS_...].)^
-** ^The current value of the parameter is returned into *pCurrent.
-** ^The highest recorded value is returned in *pHighwater.  ^If the
-** resetFlag is true, then the highest record value is reset after
-** *pHighwater is written.  ^(Some parameters do not record the highest
-** value.  For those parameters
-** nothing is written into *pHighwater and the resetFlag is ignored.)^
-** ^(Other parameters record only the highwater mark and not the current
-** value.  For these latter parameters nothing is written into *pCurrent.)^
-**
-** ^The tdsqlite3_status() and tdsqlite3_status64() routines return
-** SQLITE_OK on success and a non-zero [error code] on failure.
-**
-** If either the current value or the highwater mark is too large to
-** be represented by a 32-bit integer, then the values returned by
-** tdsqlite3_status() are undefined.
-**
-** See also: [tdsqlite3_db_status()]
-*/
-SQLITE_API int tdsqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag);
-SQLITE_API int tdsqlite3_status64(
-  int op,
-  tdsqlite3_int64 *pCurrent,
-  tdsqlite3_int64 *pHighwater,
-  int resetFlag
-);
-
-
-/*
-** CAPI3REF: Status Parameters
-** KEYWORDS: {status parameters}
-**
-** These integer constants designate various run-time status parameters
-** that can be returned by [tdsqlite3_status()].
-**
-** <dl>
-** [[SQLITE_STATUS_MEMORY_USED]] ^(<dt>SQLITE_STATUS_MEMORY_USED</dt>
-** <dd>This parameter is the current amount of memory checked out
-** using [tdsqlite3_malloc()], either directly or indirectly.  The
-** figure includes calls made to [tdsqlite3_malloc()] by the application
-** and internal memory usage by the SQLite library.  Auxiliary page-cache
-** memory controlled by [SQLITE_CONFIG_PAGECACHE] is not included in
-** this parameter.  The amount returned is the sum of the allocation
-** sizes as reported by the xSize method in [tdsqlite3_mem_methods].</dd>)^
-**
-** [[SQLITE_STATUS_MALLOC_SIZE]] ^(<dt>SQLITE_STATUS_MALLOC_SIZE</dt>
-** <dd>This parameter records the largest memory allocation request
-** handed to [tdsqlite3_malloc()] or [tdsqlite3_realloc()] (or their
-** internal equivalents).  Only the value returned in the
-** *pHighwater parameter to [tdsqlite3_status()] is of interest.  
-** The value written into the *pCurrent parameter is undefined.</dd>)^
-**
-** [[SQLITE_STATUS_MALLOC_COUNT]] ^(<dt>SQLITE_STATUS_MALLOC_COUNT</dt>
-** <dd>This parameter records the number of separate memory allocations
-** currently checked out.</dd>)^
-**
-** [[SQLITE_STATUS_PAGECACHE_USED]] ^(<dt>SQLITE_STATUS_PAGECACHE_USED</dt>
-** <dd>This parameter returns the number of pages used out of the
-** [pagecache memory allocator] that was configured using 
-** [SQLITE_CONFIG_PAGECACHE].  The
-** value returned is in pages, not in bytes.</dd>)^
-**
-** [[SQLITE_STATUS_PAGECACHE_OVERFLOW]] 
-** ^(<dt>SQLITE_STATUS_PAGECACHE_OVERFLOW</dt>
-** <dd>This parameter returns the number of bytes of page cache
-** allocation which could not be satisfied by the [SQLITE_CONFIG_PAGECACHE]
-** buffer and where forced to overflow to [tdsqlite3_malloc()].  The
-** returned value includes allocations that overflowed because they
-** where too large (they were larger than the "sz" parameter to
-** [SQLITE_CONFIG_PAGECACHE]) and allocations that overflowed because
-** no space was left in the page cache.</dd>)^
-**
-** [[SQLITE_STATUS_PAGECACHE_SIZE]] ^(<dt>SQLITE_STATUS_PAGECACHE_SIZE</dt>
-** <dd>This parameter records the largest memory allocation request
-** handed to the [pagecache memory allocator].  Only the value returned in the
-** *pHighwater parameter to [tdsqlite3_status()] is of interest.  
-** The value written into the *pCurrent parameter is undefined.</dd>)^
-**
-** [[SQLITE_STATUS_SCRATCH_USED]] <dt>SQLITE_STATUS_SCRATCH_USED</dt>
-** <dd>No longer used.</dd>
-**
-** [[SQLITE_STATUS_SCRATCH_OVERFLOW]] ^(<dt>SQLITE_STATUS_SCRATCH_OVERFLOW</dt>
-** <dd>No longer used.</dd>
-**
-** [[SQLITE_STATUS_SCRATCH_SIZE]] <dt>SQLITE_STATUS_SCRATCH_SIZE</dt>
-** <dd>No longer used.</dd>
-**
-** [[SQLITE_STATUS_PARSER_STACK]] ^(<dt>SQLITE_STATUS_PARSER_STACK</dt>
-** <dd>The *pHighwater parameter records the deepest parser stack. 
-** The *pCurrent value is undefined.  The *pHighwater value is only
-** meaningful if SQLite is compiled with [YYTRACKMAXSTACKDEPTH].</dd>)^
-** </dl>
-**
-** New status parameters may be added from time to time.
-*/
-#define SQLITE_STATUS_MEMORY_USED          0
-#define SQLITE_STATUS_PAGECACHE_USED       1
-#define SQLITE_STATUS_PAGECACHE_OVERFLOW   2
-#define SQLITE_STATUS_SCRATCH_USED         3  /* NOT USED */
-#define SQLITE_STATUS_SCRATCH_OVERFLOW     4  /* NOT USED */
-#define SQLITE_STATUS_MALLOC_SIZE          5
-#define SQLITE_STATUS_PARSER_STACK         6
-#define SQLITE_STATUS_PAGECACHE_SIZE       7
-#define SQLITE_STATUS_SCRATCH_SIZE         8  /* NOT USED */
-#define SQLITE_STATUS_MALLOC_COUNT         9
-
-/*
-** CAPI3REF: Database Connection Status
-** METHOD: tdsqlite3
-**
-** ^This interface is used to retrieve runtime status information 
-** about a single [database connection].  ^The first argument is the
-** database connection object to be interrogated.  ^The second argument
-** is an integer constant, taken from the set of
-** [SQLITE_DBSTATUS options], that
-** determines the parameter to interrogate.  The set of 
-** [SQLITE_DBSTATUS options] is likely
-** to grow in future releases of SQLite.
-**
-** ^The current value of the requested parameter is written into *pCur
-** and the highest instantaneous value is written into *pHiwtr.  ^If
-** the resetFlg is true, then the highest instantaneous value is
-** reset back down to the current value.
-**
-** ^The tdsqlite3_db_status() routine returns SQLITE_OK on success and a
-** non-zero [error code] on failure.
-**
-** See also: [tdsqlite3_status()] and [tdsqlite3_stmt_status()].
-*/
-SQLITE_API int tdsqlite3_db_status(tdsqlite3*, int op, int *pCur, int *pHiwtr, int resetFlg);
-
-/*
-** CAPI3REF: Status Parameters for database connections
-** KEYWORDS: {SQLITE_DBSTATUS options}
-**
-** These constants are the available integer "verbs" that can be passed as
-** the second argument to the [tdsqlite3_db_status()] interface.
-**
-** New verbs may be added in future releases of SQLite. Existing verbs
-** might be discontinued. Applications should check the return code from
-** [tdsqlite3_db_status()] to make sure that the call worked.
-** The [tdsqlite3_db_status()] interface will return a non-zero error code
-** if a discontinued or unsupported verb is invoked.
-**
-** <dl>
-** [[SQLITE_DBSTATUS_LOOKASIDE_USED]] ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_USED</dt>
-** <dd>This parameter returns the number of lookaside memory slots currently
-** checked out.</dd>)^
-**
-** [[SQLITE_DBSTATUS_LOOKASIDE_HIT]] ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_HIT</dt>
-** <dd>This parameter returns the number of malloc attempts that were 
-** satisfied using lookaside memory. Only the high-water value is meaningful;
-** the current value is always zero.)^
-**
-** [[SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE]]
-** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE</dt>
-** <dd>This parameter returns the number malloc attempts that might have
-** been satisfied using lookaside memory but failed due to the amount of
-** memory requested being larger than the lookaside slot size.
-** Only the high-water value is meaningful;
-** the current value is always zero.)^
-**
-** [[SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL]]
-** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL</dt>
-** <dd>This parameter returns the number malloc attempts that might have
-** been satisfied using lookaside memory but failed due to all lookaside
-** memory already being in use.
-** Only the high-water value is meaningful;
-** the current value is always zero.)^
-**
-** [[SQLITE_DBSTATUS_CACHE_USED]] ^(<dt>SQLITE_DBSTATUS_CACHE_USED</dt>
-** <dd>This parameter returns the approximate number of bytes of heap
-** memory used by all pager caches associated with the database connection.)^
-** ^The highwater mark associated with SQLITE_DBSTATUS_CACHE_USED is always 0.
-**
-** [[SQLITE_DBSTATUS_CACHE_USED_SHARED]] 
-** ^(<dt>SQLITE_DBSTATUS_CACHE_USED_SHARED</dt>
-** <dd>This parameter is similar to DBSTATUS_CACHE_USED, except that if a
-** pager cache is shared between two or more connections the bytes of heap
-** memory used by that pager cache is divided evenly between the attached
-** connections.)^  In other words, if none of the pager caches associated
-** with the database connection are shared, this request returns the same
-** value as DBSTATUS_CACHE_USED. Or, if one or more or the pager caches are
-** shared, the value returned by this call will be smaller than that returned
-** by DBSTATUS_CACHE_USED. ^The highwater mark associated with
-** SQLITE_DBSTATUS_CACHE_USED_SHARED is always 0.
-**
-** [[SQLITE_DBSTATUS_SCHEMA_USED]] ^(<dt>SQLITE_DBSTATUS_SCHEMA_USED</dt>
-** <dd>This parameter returns the approximate number of bytes of heap
-** memory used to store the schema for all databases associated
-** with the connection - main, temp, and any [ATTACH]-ed databases.)^ 
-** ^The full amount of memory used by the schemas is reported, even if the
-** schema memory is shared with other database connections due to
-** [shared cache mode] being enabled.
-** ^The highwater mark associated with SQLITE_DBSTATUS_SCHEMA_USED is always 0.
-**
-** [[SQLITE_DBSTATUS_STMT_USED]] ^(<dt>SQLITE_DBSTATUS_STMT_USED</dt>
-** <dd>This parameter returns the approximate number of bytes of heap
-** and lookaside memory used by all prepared statements associated with
-** the database connection.)^
-** ^The highwater mark associated with SQLITE_DBSTATUS_STMT_USED is always 0.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_CACHE_HIT]] ^(<dt>SQLITE_DBSTATUS_CACHE_HIT</dt>
-** <dd>This parameter returns the number of pager cache hits that have
-** occurred.)^ ^The highwater mark associated with SQLITE_DBSTATUS_CACHE_HIT 
-** is always 0.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_CACHE_MISS]] ^(<dt>SQLITE_DBSTATUS_CACHE_MISS</dt>
-** <dd>This parameter returns the number of pager cache misses that have
-** occurred.)^ ^The highwater mark associated with SQLITE_DBSTATUS_CACHE_MISS 
-** is always 0.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_CACHE_WRITE]] ^(<dt>SQLITE_DBSTATUS_CACHE_WRITE</dt>
-** <dd>This parameter returns the number of dirty cache entries that have
-** been written to disk. Specifically, the number of pages written to the
-** wal file in wal mode databases, or the number of pages written to the
-** database file in rollback mode databases. Any pages written as part of
-** transaction rollback or database recovery operations are not included.
-** If an IO or other error occurs while writing a page to disk, the effect
-** on subsequent SQLITE_DBSTATUS_CACHE_WRITE requests is undefined.)^ ^The
-** highwater mark associated with SQLITE_DBSTATUS_CACHE_WRITE is always 0.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_CACHE_SPILL]] ^(<dt>SQLITE_DBSTATUS_CACHE_SPILL</dt>
-** <dd>This parameter returns the number of dirty cache entries that have
-** been written to disk in the middle of a transaction due to the page
-** cache overflowing. Transactions are more efficient if they are written
-** to disk all at once. When pages spill mid-transaction, that introduces
-** additional overhead. This parameter can be used help identify
-** inefficiencies that can be resolved by increasing the cache size.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_DEFERRED_FKS]] ^(<dt>SQLITE_DBSTATUS_DEFERRED_FKS</dt>
-** <dd>This parameter returns zero for the current value if and only if
-** all foreign key constraints (deferred or immediate) have been
-** resolved.)^  ^The highwater mark is always 0.
-** </dd>
-** </dl>
-*/
-#define SQLITE_DBSTATUS_LOOKASIDE_USED       0
-#define SQLITE_DBSTATUS_CACHE_USED           1
-#define SQLITE_DBSTATUS_SCHEMA_USED          2
-#define SQLITE_DBSTATUS_STMT_USED            3
-#define SQLITE_DBSTATUS_LOOKASIDE_HIT        4
-#define SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE  5
-#define SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL  6
-#define SQLITE_DBSTATUS_CACHE_HIT            7
-#define SQLITE_DBSTATUS_CACHE_MISS           8
-#define SQLITE_DBSTATUS_CACHE_WRITE          9
-#define SQLITE_DBSTATUS_DEFERRED_FKS        10
-#define SQLITE_DBSTATUS_CACHE_USED_SHARED   11
-#define SQLITE_DBSTATUS_CACHE_SPILL         12
-#define SQLITE_DBSTATUS_MAX                 12   /* Largest defined DBSTATUS */
-
-
-/*
-** CAPI3REF: Prepared Statement Status
-** METHOD: tdsqlite3_stmt
-**
-** ^(Each prepared statement maintains various
-** [SQLITE_STMTSTATUS counters] that measure the number
-** of times it has performed specific operations.)^  These counters can
-** be used to monitor the performance characteristics of the prepared
-** statements.  For example, if the number of table steps greatly exceeds
-** the number of table searches or result rows, that would tend to indicate
-** that the prepared statement is using a full table scan rather than
-** an index.  
-**
-** ^(This interface is used to retrieve and reset counter values from
-** a [prepared statement].  The first argument is the prepared statement
-** object to be interrogated.  The second argument
-** is an integer code for a specific [SQLITE_STMTSTATUS counter]
-** to be interrogated.)^
-** ^The current value of the requested counter is returned.
-** ^If the resetFlg is true, then the counter is reset to zero after this
-** interface call returns.
-**
-** See also: [tdsqlite3_status()] and [tdsqlite3_db_status()].
-*/
-SQLITE_API int tdsqlite3_stmt_status(tdsqlite3_stmt*, int op,int resetFlg);
-
-/*
-** CAPI3REF: Status Parameters for prepared statements
-** KEYWORDS: {SQLITE_STMTSTATUS counter} {SQLITE_STMTSTATUS counters}
-**
-** These preprocessor macros define integer codes that name counter
-** values associated with the [tdsqlite3_stmt_status()] interface.
-** The meanings of the various counters are as follows:
-**
-** <dl>
-** [[SQLITE_STMTSTATUS_FULLSCAN_STEP]] <dt>SQLITE_STMTSTATUS_FULLSCAN_STEP</dt>
-** <dd>^This is the number of times that SQLite has stepped forward in
-** a table as part of a full table scan.  Large numbers for this counter
-** may indicate opportunities for performance improvement through 
-** careful use of indices.</dd>
-**
-** [[SQLITE_STMTSTATUS_SORT]] <dt>SQLITE_STMTSTATUS_SORT</dt>
-** <dd>^This is the number of sort operations that have occurred.
-** A non-zero value in this counter may indicate an opportunity to
-** improvement performance through careful use of indices.</dd>
-**
-** [[SQLITE_STMTSTATUS_AUTOINDEX]] <dt>SQLITE_STMTSTATUS_AUTOINDEX</dt>
-** <dd>^This is the number of rows inserted into transient indices that
-** were created automatically in order to help joins run faster.
-** A non-zero value in this counter may indicate an opportunity to
-** improvement performance by adding permanent indices that do not
-** need to be reinitialized each time the statement is run.</dd>
-**
-** [[SQLITE_STMTSTATUS_VM_STEP]] <dt>SQLITE_STMTSTATUS_VM_STEP</dt>
-** <dd>^This is the number of virtual machine operations executed
-** by the prepared statement if that number is less than or equal
-** to 2147483647.  The number of virtual machine operations can be 
-** used as a proxy for the total work done by the prepared statement.
-** If the number of virtual machine operations exceeds 2147483647
-** then the value returned by this statement status code is undefined.
-**
-** [[SQLITE_STMTSTATUS_REPREPARE]] <dt>SQLITE_STMTSTATUS_REPREPARE</dt>
-** <dd>^This is the number of times that the prepare statement has been
-** automatically regenerated due to schema changes or changes to 
-** [bound parameters] that might affect the query plan.
-**
-** [[SQLITE_STMTSTATUS_RUN]] <dt>SQLITE_STMTSTATUS_RUN</dt>
-** <dd>^This is the number of times that the prepared statement has
-** been run.  A single "run" for the purposes of this counter is one
-** or more calls to [tdsqlite3_step()] followed by a call to [tdsqlite3_reset()].
-** The counter is incremented on the first [tdsqlite3_step()] call of each
-** cycle.
-**
-** [[SQLITE_STMTSTATUS_MEMUSED]] <dt>SQLITE_STMTSTATUS_MEMUSED</dt>
-** <dd>^This is the approximate number of bytes of heap memory
-** used to store the prepared statement.  ^This value is not actually
-** a counter, and so the resetFlg parameter to tdsqlite3_stmt_status()
-** is ignored when the opcode is SQLITE_STMTSTATUS_MEMUSED.
-** </dd>
-** </dl>
-*/
-#define SQLITE_STMTSTATUS_FULLSCAN_STEP     1
-#define SQLITE_STMTSTATUS_SORT              2
-#define SQLITE_STMTSTATUS_AUTOINDEX         3
-#define SQLITE_STMTSTATUS_VM_STEP           4
-#define SQLITE_STMTSTATUS_REPREPARE         5
-#define SQLITE_STMTSTATUS_RUN               6
-#define SQLITE_STMTSTATUS_MEMUSED           99
-
-/*
-** CAPI3REF: Custom Page Cache Object
-**
-** The tdsqlite3_pcache type is opaque.  It is implemented by
-** the pluggable module.  The SQLite core has no knowledge of
-** its size or internal structure and never deals with the
-** tdsqlite3_pcache object except by holding and passing pointers
-** to the object.
-**
-** See [tdsqlite3_pcache_methods2] for additional information.
-*/
-typedef struct tdsqlite3_pcache tdsqlite3_pcache;
-
-/*
-** CAPI3REF: Custom Page Cache Object
-**
-** The tdsqlite3_pcache_page object represents a single page in the
-** page cache.  The page cache will allocate instances of this
-** object.  Various methods of the page cache use pointers to instances
-** of this object as parameters or as their return value.
-**
-** See [tdsqlite3_pcache_methods2] for additional information.
-*/
-typedef struct tdsqlite3_pcache_page tdsqlite3_pcache_page;
-struct tdsqlite3_pcache_page {
-  void *pBuf;        /* The content of the page */
-  void *pExtra;      /* Extra information associated with the page */
-};
-
-/*
-** CAPI3REF: Application Defined Page Cache.
-** KEYWORDS: {page cache}
-**
-** ^(The [tdsqlite3_config]([SQLITE_CONFIG_PCACHE2], ...) interface can
-** register an alternative page cache implementation by passing in an 
-** instance of the tdsqlite3_pcache_methods2 structure.)^
-** In many applications, most of the heap memory allocated by 
-** SQLite is used for the page cache.
-** By implementing a 
-** custom page cache using this API, an application can better control
-** the amount of memory consumed by SQLite, the way in which 
-** that memory is allocated and released, and the policies used to 
-** determine exactly which parts of a database file are cached and for 
-** how long.
-**
-** The alternative page cache mechanism is an
-** extreme measure that is only needed by the most demanding applications.
-** The built-in page cache is recommended for most uses.
-**
-** ^(The contents of the tdsqlite3_pcache_methods2 structure are copied to an
-** internal buffer by SQLite within the call to [tdsqlite3_config].  Hence
-** the application may discard the parameter after the call to
-** [tdsqlite3_config()] returns.)^
-**
-** [[the xInit() page cache method]]
-** ^(The xInit() method is called once for each effective 
-** call to [tdsqlite3_initialize()])^
-** (usually only once during the lifetime of the process). ^(The xInit()
-** method is passed a copy of the tdsqlite3_pcache_methods2.pArg value.)^
-** The intent of the xInit() method is to set up global data structures 
-** required by the custom page cache implementation. 
-** ^(If the xInit() method is NULL, then the 
-** built-in default page cache is used instead of the application defined
-** page cache.)^
-**
-** [[the xShutdown() page cache method]]
-** ^The xShutdown() method is called by [tdsqlite3_shutdown()].
-** It can be used to clean up 
-** any outstanding resources before process shutdown, if required.
-** ^The xShutdown() method may be NULL.
-**
-** ^SQLite automatically serializes calls to the xInit method,
-** so the xInit method need not be threadsafe.  ^The
-** xShutdown method is only called from [tdsqlite3_shutdown()] so it does
-** not need to be threadsafe either.  All other methods must be threadsafe
-** in multithreaded applications.
-**
-** ^SQLite will never invoke xInit() more than once without an intervening
-** call to xShutdown().
-**
-** [[the xCreate() page cache methods]]
-** ^SQLite invokes the xCreate() method to construct a new cache instance.
-** SQLite will typically create one cache instance for each open database file,
-** though this is not guaranteed. ^The
-** first parameter, szPage, is the size in bytes of the pages that must
-** be allocated by the cache.  ^szPage will always a power of two.  ^The
-** second parameter szExtra is a number of bytes of extra storage 
-** associated with each page cache entry.  ^The szExtra parameter will
-** a number less than 250.  SQLite will use the
-** extra szExtra bytes on each page to store metadata about the underlying
-** database page on disk.  The value passed into szExtra depends
-** on the SQLite version, the target platform, and how SQLite was compiled.
-** ^The third argument to xCreate(), bPurgeable, is true if the cache being
-** created will be used to cache database pages of a file stored on disk, or
-** false if it is used for an in-memory database. The cache implementation
-** does not have to do anything special based with the value of bPurgeable;
-** it is purely advisory.  ^On a cache where bPurgeable is false, SQLite will
-** never invoke xUnpin() except to deliberately delete a page.
-** ^In other words, calls to xUnpin() on a cache with bPurgeable set to
-** false will always have the "discard" flag set to true.  
-** ^Hence, a cache created with bPurgeable false will
-** never contain any unpinned pages.
-**
-** [[the xCachesize() page cache method]]
-** ^(The xCachesize() method may be called at any time by SQLite to set the
-** suggested maximum cache-size (number of pages stored by) the cache
-** instance passed as the first argument. This is the value configured using
-** the SQLite "[PRAGMA cache_size]" command.)^  As with the bPurgeable
-** parameter, the implementation is not required to do anything with this
-** value; it is advisory only.
-**
-** [[the xPagecount() page cache methods]]
-** The xPagecount() method must return the number of pages currently
-** stored in the cache, both pinned and unpinned.
-** 
-** [[the xFetch() page cache methods]]
-** The xFetch() method locates a page in the cache and returns a pointer to 
-** an tdsqlite3_pcache_page object associated with that page, or a NULL pointer.
-** The pBuf element of the returned tdsqlite3_pcache_page object will be a
-** pointer to a buffer of szPage bytes used to store the content of a 
-** single database page.  The pExtra element of tdsqlite3_pcache_page will be
-** a pointer to the szExtra bytes of extra storage that SQLite has requested
-** for each entry in the page cache.
-**
-** The page to be fetched is determined by the key. ^The minimum key value
-** is 1.  After it has been retrieved using xFetch, the page is considered
-** to be "pinned".
-**
-** If the requested page is already in the page cache, then the page cache
-** implementation must return a pointer to the page buffer with its content
-** intact.  If the requested page is not already in the cache, then the
-** cache implementation should use the value of the createFlag
-** parameter to help it determined what action to take:
-**
-** <table border=1 width=85% align=center>
-** <tr><th> createFlag <th> Behavior when page is not already in cache
-** <tr><td> 0 <td> Do not allocate a new page.  Return NULL.
-** <tr><td> 1 <td> Allocate a new page if it easy and convenient to do so.
-**                 Otherwise return NULL.
-** <tr><td> 2 <td> Make every effort to allocate a new page.  Only return
-**                 NULL if allocating a new page is effectively impossible.
-** </table>
-**
-** ^(SQLite will normally invoke xFetch() with a createFlag of 0 or 1.  SQLite
-** will only use a createFlag of 2 after a prior call with a createFlag of 1
-** failed.)^  In between the xFetch() calls, SQLite may
-** attempt to unpin one or more cache pages by spilling the content of
-** pinned pages to disk and synching the operating system disk cache.
-**
-** [[the xUnpin() page cache method]]
-** ^xUnpin() is called by SQLite with a pointer to a currently pinned page
-** as its second argument.  If the third parameter, discard, is non-zero,
-** then the page must be evicted from the cache.
-** ^If the discard parameter is
-** zero, then the page may be discarded or retained at the discretion of
-** page cache implementation. ^The page cache implementation
-** may choose to evict unpinned pages at any time.
-**
-** The cache must not perform any reference counting. A single 
-** call to xUnpin() unpins the page regardless of the number of prior calls 
-** to xFetch().
-**
-** [[the xRekey() page cache methods]]
-** The xRekey() method is used to change the key value associated with the
-** page passed as the second argument. If the cache
-** previously contains an entry associated with newKey, it must be
-** discarded. ^Any prior cache entry associated with newKey is guaranteed not
-** to be pinned.
-**
-** When SQLite calls the xTruncate() method, the cache must discard all
-** existing cache entries with page numbers (keys) greater than or equal
-** to the value of the iLimit parameter passed to xTruncate(). If any
-** of these pages are pinned, they are implicitly unpinned, meaning that
-** they can be safely discarded.
-**
-** [[the xDestroy() page cache method]]
-** ^The xDestroy() method is used to delete a cache allocated by xCreate().
-** All resources associated with the specified cache should be freed. ^After
-** calling the xDestroy() method, SQLite considers the [tdsqlite3_pcache*]
-** handle invalid, and will not use it with any other tdsqlite3_pcache_methods2
-** functions.
-**
-** [[the xShrink() page cache method]]
-** ^SQLite invokes the xShrink() method when it wants the page cache to
-** free up as much of heap memory as possible.  The page cache implementation
-** is not obligated to free any memory, but well-behaved implementations should
-** do their best.
-*/
-typedef struct tdsqlite3_pcache_methods2 tdsqlite3_pcache_methods2;
-struct tdsqlite3_pcache_methods2 {
-  int iVersion;
-  void *pArg;
-  int (*xInit)(void*);
-  void (*xShutdown)(void*);
-  tdsqlite3_pcache *(*xCreate)(int szPage, int szExtra, int bPurgeable);
-  void (*xCachesize)(tdsqlite3_pcache*, int nCachesize);
-  int (*xPagecount)(tdsqlite3_pcache*);
-  tdsqlite3_pcache_page *(*xFetch)(tdsqlite3_pcache*, unsigned key, int createFlag);
-  void (*xUnpin)(tdsqlite3_pcache*, tdsqlite3_pcache_page*, int discard);
-  void (*xRekey)(tdsqlite3_pcache*, tdsqlite3_pcache_page*, 
-      unsigned oldKey, unsigned newKey);
-  void (*xTruncate)(tdsqlite3_pcache*, unsigned iLimit);
-  void (*xDestroy)(tdsqlite3_pcache*);
-  void (*xShrink)(tdsqlite3_pcache*);
-};
-
-/*
-** This is the obsolete pcache_methods object that has now been replaced
-** by tdsqlite3_pcache_methods2.  This object is not used by SQLite.  It is
-** retained in the header file for backwards compatibility only.
-*/
-typedef struct tdsqlite3_pcache_methods tdsqlite3_pcache_methods;
-struct tdsqlite3_pcache_methods {
-  void *pArg;
-  int (*xInit)(void*);
-  void (*xShutdown)(void*);
-  tdsqlite3_pcache *(*xCreate)(int szPage, int bPurgeable);
-  void (*xCachesize)(tdsqlite3_pcache*, int nCachesize);
-  int (*xPagecount)(tdsqlite3_pcache*);
-  void *(*xFetch)(tdsqlite3_pcache*, unsigned key, int createFlag);
-  void (*xUnpin)(tdsqlite3_pcache*, void*, int discard);
-  void (*xRekey)(tdsqlite3_pcache*, void*, unsigned oldKey, unsigned newKey);
-  void (*xTruncate)(tdsqlite3_pcache*, unsigned iLimit);
-  void (*xDestroy)(tdsqlite3_pcache*);
-};
-
-
-/*
-** CAPI3REF: Online Backup Object
-**
-** The tdsqlite3_backup object records state information about an ongoing
-** online backup operation.  ^The tdsqlite3_backup object is created by
-** a call to [tdsqlite3_backup_init()] and is destroyed by a call to
-** [tdsqlite3_backup_finish()].
-**
-** See Also: [Using the SQLite Online Backup API]
-*/
-typedef struct tdsqlite3_backup tdsqlite3_backup;
-
-/*
-** CAPI3REF: Online Backup API.
-**
-** The backup API copies the content of one database into another.
-** It is useful either for creating backups of databases or
-** for copying in-memory databases to or from persistent files. 
-**
-** See Also: [Using the SQLite Online Backup API]
-**
-** ^SQLite holds a write transaction open on the destination database file
-** for the duration of the backup operation.
-** ^The source database is read-locked only while it is being read;
-** it is not locked continuously for the entire backup operation.
-** ^Thus, the backup may be performed on a live source database without
-** preventing other database connections from
-** reading or writing to the source database while the backup is underway.
-** 
-** ^(To perform a backup operation: 
-**   <ol>
-**     <li><b>tdsqlite3_backup_init()</b> is called once to initialize the
-**         backup, 
-**     <li><b>tdsqlite3_backup_step()</b> is called one or more times to transfer 
-**         the data between the two databases, and finally
-**     <li><b>tdsqlite3_backup_finish()</b> is called to release all resources 
-**         associated with the backup operation. 
-**   </ol>)^
-** There should be exactly one call to tdsqlite3_backup_finish() for each
-** successful call to tdsqlite3_backup_init().
-**
-** [[tdsqlite3_backup_init()]] <b>tdsqlite3_backup_init()</b>
-**
-** ^The D and N arguments to tdsqlite3_backup_init(D,N,S,M) are the 
-** [database connection] associated with the destination database 
-** and the database name, respectively.
-** ^The database name is "main" for the main database, "temp" for the
-** temporary database, or the name specified after the AS keyword in
-** an [ATTACH] statement for an attached database.
-** ^The S and M arguments passed to 
-** tdsqlite3_backup_init(D,N,S,M) identify the [database connection]
-** and database name of the source database, respectively.
-** ^The source and destination [database connections] (parameters S and D)
-** must be different or else tdsqlite3_backup_init(D,N,S,M) will fail with
-** an error.
-**
-** ^A call to tdsqlite3_backup_init() will fail, returning NULL, if 
-** there is already a read or read-write transaction open on the 
-** destination database.
-**
-** ^If an error occurs within tdsqlite3_backup_init(D,N,S,M), then NULL is
-** returned and an error code and error message are stored in the
-** destination [database connection] D.
-** ^The error code and message for the failed call to tdsqlite3_backup_init()
-** can be retrieved using the [tdsqlite3_errcode()], [tdsqlite3_errmsg()], and/or
-** [tdsqlite3_errmsg16()] functions.
-** ^A successful call to tdsqlite3_backup_init() returns a pointer to an
-** [tdsqlite3_backup] object.
-** ^The [tdsqlite3_backup] object may be used with the tdsqlite3_backup_step() and
-** tdsqlite3_backup_finish() functions to perform the specified backup 
-** operation.
-**
-** [[tdsqlite3_backup_step()]] <b>tdsqlite3_backup_step()</b>
-**
-** ^Function tdsqlite3_backup_step(B,N) will copy up to N pages between 
-** the source and destination databases specified by [tdsqlite3_backup] object B.
-** ^If N is negative, all remaining source pages are copied. 
-** ^If tdsqlite3_backup_step(B,N) successfully copies N pages and there
-** are still more pages to be copied, then the function returns [SQLITE_OK].
-** ^If tdsqlite3_backup_step(B,N) successfully finishes copying all pages
-** from source to destination, then it returns [SQLITE_DONE].
-** ^If an error occurs while running tdsqlite3_backup_step(B,N),
-** then an [error code] is returned. ^As well as [SQLITE_OK] and
-** [SQLITE_DONE], a call to tdsqlite3_backup_step() may return [SQLITE_READONLY],
-** [SQLITE_NOMEM], [SQLITE_BUSY], [SQLITE_LOCKED], or an
-** [SQLITE_IOERR_ACCESS | SQLITE_IOERR_XXX] extended error code.
-**
-** ^(The tdsqlite3_backup_step() might return [SQLITE_READONLY] if
-** <ol>
-** <li> the destination database was opened read-only, or
-** <li> the destination database is using write-ahead-log journaling
-** and the destination and source page sizes differ, or
-** <li> the destination database is an in-memory database and the
-** destination and source page sizes differ.
-** </ol>)^
-**
-** ^If tdsqlite3_backup_step() cannot obtain a required file-system lock, then
-** the [tdsqlite3_busy_handler | busy-handler function]
-** is invoked (if one is specified). ^If the 
-** busy-handler returns non-zero before the lock is available, then 
-** [SQLITE_BUSY] is returned to the caller. ^In this case the call to
-** tdsqlite3_backup_step() can be retried later. ^If the source
-** [database connection]
-** is being used to write to the source database when tdsqlite3_backup_step()
-** is called, then [SQLITE_LOCKED] is returned immediately. ^Again, in this
-** case the call to tdsqlite3_backup_step() can be retried later on. ^(If
-** [SQLITE_IOERR_ACCESS | SQLITE_IOERR_XXX], [SQLITE_NOMEM], or
-** [SQLITE_READONLY] is returned, then 
-** there is no point in retrying the call to tdsqlite3_backup_step(). These 
-** errors are considered fatal.)^  The application must accept 
-** that the backup operation has failed and pass the backup operation handle 
-** to the tdsqlite3_backup_finish() to release associated resources.
-**
-** ^The first call to tdsqlite3_backup_step() obtains an exclusive lock
-** on the destination file. ^The exclusive lock is not released until either 
-** tdsqlite3_backup_finish() is called or the backup operation is complete 
-** and tdsqlite3_backup_step() returns [SQLITE_DONE].  ^Every call to
-** tdsqlite3_backup_step() obtains a [shared lock] on the source database that
-** lasts for the duration of the tdsqlite3_backup_step() call.
-** ^Because the source database is not locked between calls to
-** tdsqlite3_backup_step(), the source database may be modified mid-way
-** through the backup process.  ^If the source database is modified by an
-** external process or via a database connection other than the one being
-** used by the backup operation, then the backup will be automatically
-** restarted by the next call to tdsqlite3_backup_step(). ^If the source 
-** database is modified by the using the same database connection as is used
-** by the backup operation, then the backup database is automatically
-** updated at the same time.
-**
-** [[tdsqlite3_backup_finish()]] <b>tdsqlite3_backup_finish()</b>
-**
-** When tdsqlite3_backup_step() has returned [SQLITE_DONE], or when the 
-** application wishes to abandon the backup operation, the application
-** should destroy the [tdsqlite3_backup] by passing it to tdsqlite3_backup_finish().
-** ^The tdsqlite3_backup_finish() interfaces releases all
-** resources associated with the [tdsqlite3_backup] object. 
-** ^If tdsqlite3_backup_step() has not yet returned [SQLITE_DONE], then any
-** active write-transaction on the destination database is rolled back.
-** The [tdsqlite3_backup] object is invalid
-** and may not be used following a call to tdsqlite3_backup_finish().
-**
-** ^The value returned by tdsqlite3_backup_finish is [SQLITE_OK] if no
-** tdsqlite3_backup_step() errors occurred, regardless or whether or not
-** tdsqlite3_backup_step() completed.
-** ^If an out-of-memory condition or IO error occurred during any prior
-** tdsqlite3_backup_step() call on the same [tdsqlite3_backup] object, then
-** tdsqlite3_backup_finish() returns the corresponding [error code].
-**
-** ^A return of [SQLITE_BUSY] or [SQLITE_LOCKED] from tdsqlite3_backup_step()
-** is not a permanent error and does not affect the return value of
-** tdsqlite3_backup_finish().
-**
-** [[tdsqlite3_backup_remaining()]] [[tdsqlite3_backup_pagecount()]]
-** <b>tdsqlite3_backup_remaining() and tdsqlite3_backup_pagecount()</b>
-**
-** ^The tdsqlite3_backup_remaining() routine returns the number of pages still
-** to be backed up at the conclusion of the most recent tdsqlite3_backup_step().
-** ^The tdsqlite3_backup_pagecount() routine returns the total number of pages
-** in the source database at the conclusion of the most recent
-** tdsqlite3_backup_step().
-** ^(The values returned by these functions are only updated by
-** tdsqlite3_backup_step(). If the source database is modified in a way that
-** changes the size of the source database or the number of pages remaining,
-** those changes are not reflected in the output of tdsqlite3_backup_pagecount()
-** and tdsqlite3_backup_remaining() until after the next
-** tdsqlite3_backup_step().)^
-**
-** <b>Concurrent Usage of Database Handles</b>
-**
-** ^The source [database connection] may be used by the application for other
-** purposes while a backup operation is underway or being initialized.
-** ^If SQLite is compiled and configured to support threadsafe database
-** connections, then the source database connection may be used concurrently
-** from within other threads.
-**
-** However, the application must guarantee that the destination 
-** [database connection] is not passed to any other API (by any thread) after 
-** tdsqlite3_backup_init() is called and before the corresponding call to
-** tdsqlite3_backup_finish().  SQLite does not currently check to see
-** if the application incorrectly accesses the destination [database connection]
-** and so no error code is reported, but the operations may malfunction
-** nevertheless.  Use of the destination database connection while a
-** backup is in progress might also also cause a mutex deadlock.
-**
-** If running in [shared cache mode], the application must
-** guarantee that the shared cache used by the destination database
-** is not accessed while the backup is running. In practice this means
-** that the application must guarantee that the disk file being 
-** backed up to is not accessed by any connection within the process,
-** not just the specific connection that was passed to tdsqlite3_backup_init().
-**
-** The [tdsqlite3_backup] object itself is partially threadsafe. Multiple 
-** threads may safely make multiple concurrent calls to tdsqlite3_backup_step().
-** However, the tdsqlite3_backup_remaining() and tdsqlite3_backup_pagecount()
-** APIs are not strictly speaking threadsafe. If they are invoked at the
-** same time as another thread is invoking tdsqlite3_backup_step() it is
-** possible that they return invalid values.
-*/
-SQLITE_API tdsqlite3_backup *tdsqlite3_backup_init(
-  tdsqlite3 *pDest,                        /* Destination database handle */
-  const char *zDestName,                 /* Destination database name */
-  tdsqlite3 *pSource,                      /* Source database handle */
-  const char *zSourceName                /* Source database name */
-);
-SQLITE_API int tdsqlite3_backup_step(tdsqlite3_backup *p, int nPage);
-SQLITE_API int tdsqlite3_backup_finish(tdsqlite3_backup *p);
-SQLITE_API int tdsqlite3_backup_remaining(tdsqlite3_backup *p);
-SQLITE_API int tdsqlite3_backup_pagecount(tdsqlite3_backup *p);
-
-/*
-** CAPI3REF: Unlock Notification
-** METHOD: tdsqlite3
-**
-** ^When running in shared-cache mode, a database operation may fail with
-** an [SQLITE_LOCKED] error if the required locks on the shared-cache or
-** individual tables within the shared-cache cannot be obtained. See
-** [SQLite Shared-Cache Mode] for a description of shared-cache locking. 
-** ^This API may be used to register a callback that SQLite will invoke 
-** when the connection currently holding the required lock relinquishes it.
-** ^This API is only available if the library was compiled with the
-** [SQLITE_ENABLE_UNLOCK_NOTIFY] C-preprocessor symbol defined.
-**
-** See Also: [Using the SQLite Unlock Notification Feature].
-**
-** ^Shared-cache locks are released when a database connection concludes
-** its current transaction, either by committing it or rolling it back. 
-**
-** ^When a connection (known as the blocked connection) fails to obtain a
-** shared-cache lock and SQLITE_LOCKED is returned to the caller, the
-** identity of the database connection (the blocking connection) that
-** has locked the required resource is stored internally. ^After an 
-** application receives an SQLITE_LOCKED error, it may call the
-** tdsqlite3_unlock_notify() method with the blocked connection handle as 
-** the first argument to register for a callback that will be invoked
-** when the blocking connections current transaction is concluded. ^The
-** callback is invoked from within the [tdsqlite3_step] or [tdsqlite3_close]
-** call that concludes the blocking connection's transaction.
-**
-** ^(If tdsqlite3_unlock_notify() is called in a multi-threaded application,
-** there is a chance that the blocking connection will have already
-** concluded its transaction by the time tdsqlite3_unlock_notify() is invoked.
-** If this happens, then the specified callback is invoked immediately,
-** from within the call to tdsqlite3_unlock_notify().)^
-**
-** ^If the blocked connection is attempting to obtain a write-lock on a
-** shared-cache table, and more than one other connection currently holds
-** a read-lock on the same table, then SQLite arbitrarily selects one of 
-** the other connections to use as the blocking connection.
-**
-** ^(There may be at most one unlock-notify callback registered by a 
-** blocked connection. If tdsqlite3_unlock_notify() is called when the
-** blocked connection already has a registered unlock-notify callback,
-** then the new callback replaces the old.)^ ^If tdsqlite3_unlock_notify() is
-** called with a NULL pointer as its second argument, then any existing
-** unlock-notify callback is canceled. ^The blocked connections 
-** unlock-notify callback may also be canceled by closing the blocked
-** connection using [tdsqlite3_close()].
-**
-** The unlock-notify callback is not reentrant. If an application invokes
-** any tdsqlite3_xxx API functions from within an unlock-notify callback, a
-** crash or deadlock may be the result.
-**
-** ^Unless deadlock is detected (see below), tdsqlite3_unlock_notify() always
-** returns SQLITE_OK.
-**
-** <b>Callback Invocation Details</b>
-**
-** When an unlock-notify callback is registered, the application provides a 
-** single void* pointer that is passed to the callback when it is invoked.
-** However, the signature of the callback function allows SQLite to pass
-** it an array of void* context pointers. The first argument passed to
-** an unlock-notify callback is a pointer to an array of void* pointers,
-** and the second is the number of entries in the array.
-**
-** When a blocking connection's transaction is concluded, there may be
-** more than one blocked connection that has registered for an unlock-notify
-** callback. ^If two or more such blocked connections have specified the
-** same callback function, then instead of invoking the callback function
-** multiple times, it is invoked once with the set of void* context pointers
-** specified by the blocked connections bundled together into an array.
-** This gives the application an opportunity to prioritize any actions 
-** related to the set of unblocked database connections.
-**
-** <b>Deadlock Detection</b>
-**
-** Assuming that after registering for an unlock-notify callback a 
-** database waits for the callback to be issued before taking any further
-** action (a reasonable assumption), then using this API may cause the
-** application to deadlock. For example, if connection X is waiting for
-** connection Y's transaction to be concluded, and similarly connection
-** Y is waiting on connection X's transaction, then neither connection
-** will proceed and the system may remain deadlocked indefinitely.
-**
-** To avoid this scenario, the tdsqlite3_unlock_notify() performs deadlock
-** detection. ^If a given call to tdsqlite3_unlock_notify() would put the
-** system in a deadlocked state, then SQLITE_LOCKED is returned and no
-** unlock-notify callback is registered. The system is said to be in
-** a deadlocked state if connection A has registered for an unlock-notify
-** callback on the conclusion of connection B's transaction, and connection
-** B has itself registered for an unlock-notify callback when connection
-** A's transaction is concluded. ^Indirect deadlock is also detected, so
-** the system is also considered to be deadlocked if connection B has
-** registered for an unlock-notify callback on the conclusion of connection
-** C's transaction, where connection C is waiting on connection A. ^Any
-** number of levels of indirection are allowed.
-**
-** <b>The "DROP TABLE" Exception</b>
-**
-** When a call to [tdsqlite3_step()] returns SQLITE_LOCKED, it is almost 
-** always appropriate to call tdsqlite3_unlock_notify(). There is however,
-** one exception. When executing a "DROP TABLE" or "DROP INDEX" statement,
-** SQLite checks if there are any currently executing SELECT statements
-** that belong to the same connection. If there are, SQLITE_LOCKED is
-** returned. In this case there is no "blocking connection", so invoking
-** tdsqlite3_unlock_notify() results in the unlock-notify callback being
-** invoked immediately. If the application then re-attempts the "DROP TABLE"
-** or "DROP INDEX" query, an infinite loop might be the result.
-**
-** One way around this problem is to check the extended error code returned
-** by an tdsqlite3_step() call. ^(If there is a blocking connection, then the
-** extended error code is set to SQLITE_LOCKED_SHAREDCACHE. Otherwise, in
-** the special "DROP TABLE/INDEX" case, the extended error code is just 
-** SQLITE_LOCKED.)^
-*/
-SQLITE_API int tdsqlite3_unlock_notify(
-  tdsqlite3 *pBlocked,                          /* Waiting connection */
-  void (*xNotify)(void **apArg, int nArg),    /* Callback function to invoke */
-  void *pNotifyArg                            /* Argument to pass to xNotify */
-);
-
-
-/*
-** CAPI3REF: String Comparison
-**
-** ^The [tdsqlite3_stricmp()] and [tdsqlite3_strnicmp()] APIs allow applications
-** and extensions to compare the contents of two buffers containing UTF-8
-** strings in a case-independent fashion, using the same definition of "case
-** independence" that SQLite uses internally when comparing identifiers.
-*/
-SQLITE_API int tdsqlite3_stricmp(const char *, const char *);
-SQLITE_API int tdsqlite3_strnicmp(const char *, const char *, int);
-
-/*
-** CAPI3REF: String Globbing
-*
-** ^The [tdsqlite3_strglob(P,X)] interface returns zero if and only if
-** string X matches the [GLOB] pattern P.
-** ^The definition of [GLOB] pattern matching used in
-** [tdsqlite3_strglob(P,X)] is the same as for the "X GLOB P" operator in the
-** SQL dialect understood by SQLite.  ^The [tdsqlite3_strglob(P,X)] function
-** is case sensitive.
-**
-** Note that this routine returns zero on a match and non-zero if the strings
-** do not match, the same as [tdsqlite3_stricmp()] and [tdsqlite3_strnicmp()].
-**
-** See also: [tdsqlite3_strlike()].
-*/
-SQLITE_API int tdsqlite3_strglob(const char *zGlob, const char *zStr);
-
-/*
-** CAPI3REF: String LIKE Matching
-*
-** ^The [tdsqlite3_strlike(P,X,E)] interface returns zero if and only if
-** string X matches the [LIKE] pattern P with escape character E.
-** ^The definition of [LIKE] pattern matching used in
-** [tdsqlite3_strlike(P,X,E)] is the same as for the "X LIKE P ESCAPE E"
-** operator in the SQL dialect understood by SQLite.  ^For "X LIKE P" without
-** the ESCAPE clause, set the E parameter of [tdsqlite3_strlike(P,X,E)] to 0.
-** ^As with the LIKE operator, the [tdsqlite3_strlike(P,X,E)] function is case
-** insensitive - equivalent upper and lower case ASCII characters match
-** one another.
-**
-** ^The [tdsqlite3_strlike(P,X,E)] function matches Unicode characters, though
-** only ASCII characters are case folded.
-**
-** Note that this routine returns zero on a match and non-zero if the strings
-** do not match, the same as [tdsqlite3_stricmp()] and [tdsqlite3_strnicmp()].
-**
-** See also: [tdsqlite3_strglob()].
-*/
-SQLITE_API int tdsqlite3_strlike(const char *zGlob, const char *zStr, unsigned int cEsc);
-
-/*
-** CAPI3REF: Error Logging Interface
-**
-** ^The [tdsqlite3_log()] interface writes a message into the [error log]
-** established by the [SQLITE_CONFIG_LOG] option to [tdsqlite3_config()].
-** ^If logging is enabled, the zFormat string and subsequent arguments are
-** used with [tdsqlite3_snprintf()] to generate the final output string.
-**
-** The tdsqlite3_log() interface is intended for use by extensions such as
-** virtual tables, collating functions, and SQL functions.  While there is
-** nothing to prevent an application from calling tdsqlite3_log(), doing so
-** is considered bad form.
-**
-** The zFormat string must not be NULL.
-**
-** To avoid deadlocks and other threading problems, the tdsqlite3_log() routine
-** will not use dynamically allocated memory.  The log message is stored in
-** a fixed-length buffer on the stack.  If the log message is longer than
-** a few hundred characters, it will be truncated to the length of the
-** buffer.
-*/
-SQLITE_API void tdsqlite3_log(int iErrCode, const char *zFormat, ...);
-
-/*
-** CAPI3REF: Write-Ahead Log Commit Hook
-** METHOD: tdsqlite3
-**
-** ^The [tdsqlite3_wal_hook()] function is used to register a callback that
-** is invoked each time data is committed to a database in wal mode.
-**
-** ^(The callback is invoked by SQLite after the commit has taken place and 
-** the associated write-lock on the database released)^, so the implementation 
-** may read, write or [checkpoint] the database as required.
-**
-** ^The first parameter passed to the callback function when it is invoked
-** is a copy of the third parameter passed to tdsqlite3_wal_hook() when
-** registering the callback. ^The second is a copy of the database handle.
-** ^The third parameter is the name of the database that was written to -
-** either "main" or the name of an [ATTACH]-ed database. ^The fourth parameter
-** is the number of pages currently in the write-ahead log file,
-** including those that were just committed.
-**
-** The callback function should normally return [SQLITE_OK].  ^If an error
-** code is returned, that error will propagate back up through the
-** SQLite code base to cause the statement that provoked the callback
-** to report an error, though the commit will have still occurred. If the
-** callback returns [SQLITE_ROW] or [SQLITE_DONE], or if it returns a value
-** that does not correspond to any valid SQLite error code, the results
-** are undefined.
-**
-** A single database handle may have at most a single write-ahead log callback 
-** registered at one time. ^Calling [tdsqlite3_wal_hook()] replaces any
-** previously registered write-ahead log callback. ^Note that the
-** [tdsqlite3_wal_autocheckpoint()] interface and the
-** [wal_autocheckpoint pragma] both invoke [tdsqlite3_wal_hook()] and will
-** overwrite any prior [tdsqlite3_wal_hook()] settings.
-*/
-SQLITE_API void *tdsqlite3_wal_hook(
-  tdsqlite3*, 
-  int(*)(void *,tdsqlite3*,const char*,int),
-  void*
-);
-
-/*
-** CAPI3REF: Configure an auto-checkpoint
-** METHOD: tdsqlite3
-**
-** ^The [tdsqlite3_wal_autocheckpoint(D,N)] is a wrapper around
-** [tdsqlite3_wal_hook()] that causes any database on [database connection] D
-** to automatically [checkpoint]
-** after committing a transaction if there are N or
-** more frames in the [write-ahead log] file.  ^Passing zero or 
-** a negative value as the nFrame parameter disables automatic
-** checkpoints entirely.
-**
-** ^The callback registered by this function replaces any existing callback
-** registered using [tdsqlite3_wal_hook()].  ^Likewise, registering a callback
-** using [tdsqlite3_wal_hook()] disables the automatic checkpoint mechanism
-** configured by this function.
-**
-** ^The [wal_autocheckpoint pragma] can be used to invoke this interface
-** from SQL.
-**
-** ^Checkpoints initiated by this mechanism are
-** [tdsqlite3_wal_checkpoint_v2|PASSIVE].
-**
-** ^Every new [database connection] defaults to having the auto-checkpoint
-** enabled with a threshold of 1000 or [SQLITE_DEFAULT_WAL_AUTOCHECKPOINT]
-** pages.  The use of this interface
-** is only necessary if the default setting is found to be suboptimal
-** for a particular application.
-*/
-SQLITE_API int tdsqlite3_wal_autocheckpoint(tdsqlite3 *db, int N);
-
-/*
-** CAPI3REF: Checkpoint a database
-** METHOD: tdsqlite3
-**
-** ^(The tdsqlite3_wal_checkpoint(D,X) is equivalent to
-** [tdsqlite3_wal_checkpoint_v2](D,X,[SQLITE_CHECKPOINT_PASSIVE],0,0).)^
-**
-** In brief, tdsqlite3_wal_checkpoint(D,X) causes the content in the 
-** [write-ahead log] for database X on [database connection] D to be
-** transferred into the database file and for the write-ahead log to
-** be reset.  See the [checkpointing] documentation for addition
-** information.
-**
-** This interface used to be the only way to cause a checkpoint to
-** occur.  But then the newer and more powerful [tdsqlite3_wal_checkpoint_v2()]
-** interface was added.  This interface is retained for backwards
-** compatibility and as a convenience for applications that need to manually
-** start a callback but which do not need the full power (and corresponding
-** complication) of [tdsqlite3_wal_checkpoint_v2()].
-*/
-SQLITE_API int tdsqlite3_wal_checkpoint(tdsqlite3 *db, const char *zDb);
-
-/*
-** CAPI3REF: Checkpoint a database
-** METHOD: tdsqlite3
-**
-** ^(The tdsqlite3_wal_checkpoint_v2(D,X,M,L,C) interface runs a checkpoint
-** operation on database X of [database connection] D in mode M.  Status
-** information is written back into integers pointed to by L and C.)^
-** ^(The M parameter must be a valid [checkpoint mode]:)^
-**
-** <dl>
-** <dt>SQLITE_CHECKPOINT_PASSIVE<dd>
-**   ^Checkpoint as many frames as possible without waiting for any database 
-**   readers or writers to finish, then sync the database file if all frames 
-**   in the log were checkpointed. ^The [busy-handler callback]
-**   is never invoked in the SQLITE_CHECKPOINT_PASSIVE mode.  
-**   ^On the other hand, passive mode might leave the checkpoint unfinished
-**   if there are concurrent readers or writers.
-**
-** <dt>SQLITE_CHECKPOINT_FULL<dd>
-**   ^This mode blocks (it invokes the
-**   [tdsqlite3_busy_handler|busy-handler callback]) until there is no
-**   database writer and all readers are reading from the most recent database
-**   snapshot. ^It then checkpoints all frames in the log file and syncs the
-**   database file. ^This mode blocks new database writers while it is pending,
-**   but new database readers are allowed to continue unimpeded.
-**
-** <dt>SQLITE_CHECKPOINT_RESTART<dd>
-**   ^This mode works the same way as SQLITE_CHECKPOINT_FULL with the addition
-**   that after checkpointing the log file it blocks (calls the 
-**   [busy-handler callback])
-**   until all readers are reading from the database file only. ^This ensures 
-**   that the next writer will restart the log file from the beginning.
-**   ^Like SQLITE_CHECKPOINT_FULL, this mode blocks new
-**   database writer attempts while it is pending, but does not impede readers.
-**
-** <dt>SQLITE_CHECKPOINT_TRUNCATE<dd>
-**   ^This mode works the same way as SQLITE_CHECKPOINT_RESTART with the
-**   addition that it also truncates the log file to zero bytes just prior
-**   to a successful return.
-** </dl>
-**
-** ^If pnLog is not NULL, then *pnLog is set to the total number of frames in
-** the log file or to -1 if the checkpoint could not run because
-** of an error or because the database is not in [WAL mode]. ^If pnCkpt is not
-** NULL,then *pnCkpt is set to the total number of checkpointed frames in the
-** log file (including any that were already checkpointed before the function
-** was called) or to -1 if the checkpoint could not run due to an error or
-** because the database is not in WAL mode. ^Note that upon successful
-** completion of an SQLITE_CHECKPOINT_TRUNCATE, the log file will have been
-** truncated to zero bytes and so both *pnLog and *pnCkpt will be set to zero.
-**
-** ^All calls obtain an exclusive "checkpoint" lock on the database file. ^If
-** any other process is running a checkpoint operation at the same time, the 
-** lock cannot be obtained and SQLITE_BUSY is returned. ^Even if there is a 
-** busy-handler configured, it will not be invoked in this case.
-**
-** ^The SQLITE_CHECKPOINT_FULL, RESTART and TRUNCATE modes also obtain the 
-** exclusive "writer" lock on the database file. ^If the writer lock cannot be
-** obtained immediately, and a busy-handler is configured, it is invoked and
-** the writer lock retried until either the busy-handler returns 0 or the lock
-** is successfully obtained. ^The busy-handler is also invoked while waiting for
-** database readers as described above. ^If the busy-handler returns 0 before
-** the writer lock is obtained or while waiting for database readers, the
-** checkpoint operation proceeds from that point in the same way as 
-** SQLITE_CHECKPOINT_PASSIVE - checkpointing as many frames as possible 
-** without blocking any further. ^SQLITE_BUSY is returned in this case.
-**
-** ^If parameter zDb is NULL or points to a zero length string, then the
-** specified operation is attempted on all WAL databases [attached] to 
-** [database connection] db.  In this case the
-** values written to output parameters *pnLog and *pnCkpt are undefined. ^If 
-** an SQLITE_BUSY error is encountered when processing one or more of the 
-** attached WAL databases, the operation is still attempted on any remaining 
-** attached databases and SQLITE_BUSY is returned at the end. ^If any other 
-** error occurs while processing an attached database, processing is abandoned 
-** and the error code is returned to the caller immediately. ^If no error 
-** (SQLITE_BUSY or otherwise) is encountered while processing the attached 
-** databases, SQLITE_OK is returned.
-**
-** ^If database zDb is the name of an attached database that is not in WAL
-** mode, SQLITE_OK is returned and both *pnLog and *pnCkpt set to -1. ^If
-** zDb is not NULL (or a zero length string) and is not the name of any
-** attached database, SQLITE_ERROR is returned to the caller.
-**
-** ^Unless it returns SQLITE_MISUSE,
-** the tdsqlite3_wal_checkpoint_v2() interface
-** sets the error information that is queried by
-** [tdsqlite3_errcode()] and [tdsqlite3_errmsg()].
-**
-** ^The [PRAGMA wal_checkpoint] command can be used to invoke this interface
-** from SQL.
-*/
-SQLITE_API int tdsqlite3_wal_checkpoint_v2(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Name of attached database (or NULL) */
-  int eMode,                      /* SQLITE_CHECKPOINT_* value */
-  int *pnLog,                     /* OUT: Size of WAL log in frames */
-  int *pnCkpt                     /* OUT: Total number of frames checkpointed */
-);
-
-/*
-** CAPI3REF: Checkpoint Mode Values
-** KEYWORDS: {checkpoint mode}
-**
-** These constants define all valid values for the "checkpoint mode" passed
-** as the third parameter to the [tdsqlite3_wal_checkpoint_v2()] interface.
-** See the [tdsqlite3_wal_checkpoint_v2()] documentation for details on the
-** meaning of each of these checkpoint modes.
-*/
-#define SQLITE_CHECKPOINT_PASSIVE  0  /* Do as much as possible w/o blocking */
-#define SQLITE_CHECKPOINT_FULL     1  /* Wait for writers, then checkpoint */
-#define SQLITE_CHECKPOINT_RESTART  2  /* Like FULL but wait for for readers */
-#define SQLITE_CHECKPOINT_TRUNCATE 3  /* Like RESTART but also truncate WAL */
-
-/*
-** CAPI3REF: Virtual Table Interface Configuration
-**
-** This function may be called by either the [xConnect] or [xCreate] method
-** of a [virtual table] implementation to configure
-** various facets of the virtual table interface.
-**
-** If this interface is invoked outside the context of an xConnect or
-** xCreate virtual table method then the behavior is undefined.
-**
-** In the call tdsqlite3_vtab_config(D,C,...) the D parameter is the
-** [database connection] in which the virtual table is being created and
-** which is passed in as the first argument to the [xConnect] or [xCreate]
-** method that is invoking tdsqlite3_vtab_config().  The C parameter is one
-** of the [virtual table configuration options].  The presence and meaning
-** of parameters after C depend on which [virtual table configuration option]
-** is used.
-*/
-SQLITE_API int tdsqlite3_vtab_config(tdsqlite3*, int op, ...);
-
-/*
-** CAPI3REF: Virtual Table Configuration Options
-** KEYWORDS: {virtual table configuration options} 
-** KEYWORDS: {virtual table configuration option}
-**
-** These macros define the various options to the
-** [tdsqlite3_vtab_config()] interface that [virtual table] implementations
-** can use to customize and optimize their behavior.
-**
-** <dl>
-** [[SQLITE_VTAB_CONSTRAINT_SUPPORT]]
-** <dt>SQLITE_VTAB_CONSTRAINT_SUPPORT</dt>
-** <dd>Calls of the form
-** [tdsqlite3_vtab_config](db,SQLITE_VTAB_CONSTRAINT_SUPPORT,X) are supported,
-** where X is an integer.  If X is zero, then the [virtual table] whose
-** [xCreate] or [xConnect] method invoked [tdsqlite3_vtab_config()] does not
-** support constraints.  In this configuration (which is the default) if
-** a call to the [xUpdate] method returns [SQLITE_CONSTRAINT], then the entire
-** statement is rolled back as if [ON CONFLICT | OR ABORT] had been
-** specified as part of the users SQL statement, regardless of the actual
-** ON CONFLICT mode specified.
-**
-** If X is non-zero, then the virtual table implementation guarantees
-** that if [xUpdate] returns [SQLITE_CONSTRAINT], it will do so before
-** any modifications to internal or persistent data structures have been made.
-** If the [ON CONFLICT] mode is ABORT, FAIL, IGNORE or ROLLBACK, SQLite 
-** is able to roll back a statement or database transaction, and abandon
-** or continue processing the current SQL statement as appropriate. 
-** If the ON CONFLICT mode is REPLACE and the [xUpdate] method returns
-** [SQLITE_CONSTRAINT], SQLite handles this as if the ON CONFLICT mode
-** had been ABORT.
-**
-** Virtual table implementations that are required to handle OR REPLACE
-** must do so within the [xUpdate] method. If a call to the 
-** [tdsqlite3_vtab_on_conflict()] function indicates that the current ON 
-** CONFLICT policy is REPLACE, the virtual table implementation should 
-** silently replace the appropriate rows within the xUpdate callback and
-** return SQLITE_OK. Or, if this is not possible, it may return
-** SQLITE_CONSTRAINT, in which case SQLite falls back to OR ABORT 
-** constraint handling.
-** </dd>
-**
-** [[SQLITE_VTAB_DIRECTONLY]]<dt>SQLITE_VTAB_DIRECTONLY</dt>
-** <dd>Calls of the form
-** [tdsqlite3_vtab_config](db,SQLITE_VTAB_DIRECTONLY) from within the
-** the [xConnect] or [xCreate] methods of a [virtual table] implmentation
-** prohibits that virtual table from being used from within triggers and
-** views.
-** </dd>
-**
-** [[SQLITE_VTAB_INNOCUOUS]]<dt>SQLITE_VTAB_INNOCUOUS</dt>
-** <dd>Calls of the form
-** [tdsqlite3_vtab_config](db,SQLITE_VTAB_INNOCUOUS) from within the
-** the [xConnect] or [xCreate] methods of a [virtual table] implmentation
-** identify that virtual table as being safe to use from within triggers
-** and views.  Conceptually, the SQLITE_VTAB_INNOCUOUS tag means that the
-** virtual table can do no serious harm even if it is controlled by a
-** malicious hacker.  Developers should avoid setting the SQLITE_VTAB_INNOCUOUS
-** flag unless absolutely necessary.
-** </dd>
-** </dl>
-*/
-#define SQLITE_VTAB_CONSTRAINT_SUPPORT 1
-#define SQLITE_VTAB_INNOCUOUS          2
-#define SQLITE_VTAB_DIRECTONLY         3
-
-/*
-** CAPI3REF: Determine The Virtual Table Conflict Policy
-**
-** This function may only be called from within a call to the [xUpdate] method
-** of a [virtual table] implementation for an INSERT or UPDATE operation. ^The
-** value returned is one of [SQLITE_ROLLBACK], [SQLITE_IGNORE], [SQLITE_FAIL],
-** [SQLITE_ABORT], or [SQLITE_REPLACE], according to the [ON CONFLICT] mode
-** of the SQL statement that triggered the call to the [xUpdate] method of the
-** [virtual table].
-*/
-SQLITE_API int tdsqlite3_vtab_on_conflict(tdsqlite3 *);
-
-/*
-** CAPI3REF: Determine If Virtual Table Column Access Is For UPDATE
-**
-** If the tdsqlite3_vtab_nochange(X) routine is called within the [xColumn]
-** method of a [virtual table], then it returns true if and only if the
-** column is being fetched as part of an UPDATE operation during which the
-** column value will not change.  Applications might use this to substitute
-** a return value that is less expensive to compute and that the corresponding
-** [xUpdate] method understands as a "no-change" value.
-**
-** If the [xColumn] method calls tdsqlite3_vtab_nochange() and finds that
-** the column is not changed by the UPDATE statement, then the xColumn
-** method can optionally return without setting a result, without calling
-** any of the [tdsqlite3_result_int|tdsqlite3_result_xxxxx() interfaces].
-** In that case, [tdsqlite3_value_nochange(X)] will return true for the
-** same column in the [xUpdate] method.
-*/
-SQLITE_API int tdsqlite3_vtab_nochange(tdsqlite3_context*);
-
-/*
-** CAPI3REF: Determine The Collation For a Virtual Table Constraint
-**
-** This function may only be called from within a call to the [xBestIndex]
-** method of a [virtual table]. 
-**
-** The first argument must be the tdsqlite3_index_info object that is the
-** first parameter to the xBestIndex() method. The second argument must be
-** an index into the aConstraint[] array belonging to the tdsqlite3_index_info
-** structure passed to xBestIndex. This function returns a pointer to a buffer 
-** containing the name of the collation sequence for the corresponding
-** constraint.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL const char *tdsqlite3_vtab_collation(tdsqlite3_index_info*,int);
-
-/*
-** CAPI3REF: Conflict resolution modes
-** KEYWORDS: {conflict resolution mode}
-**
-** These constants are returned by [tdsqlite3_vtab_on_conflict()] to
-** inform a [virtual table] implementation what the [ON CONFLICT] mode
-** is for the SQL statement being evaluated.
-**
-** Note that the [SQLITE_IGNORE] constant is also used as a potential
-** return value from the [tdsqlite3_set_authorizer()] callback and that
-** [SQLITE_ABORT] is also a [result code].
-*/
-#define SQLITE_ROLLBACK 1
-/* #define SQLITE_IGNORE 2 // Also used by tdsqlite3_authorizer() callback */
-#define SQLITE_FAIL     3
-/* #define SQLITE_ABORT 4  // Also an error code */
-#define SQLITE_REPLACE  5
-
-/*
-** CAPI3REF: Prepared Statement Scan Status Opcodes
-** KEYWORDS: {scanstatus options}
-**
-** The following constants can be used for the T parameter to the
-** [tdsqlite3_stmt_scanstatus(S,X,T,V)] interface.  Each constant designates a
-** different metric for tdsqlite3_stmt_scanstatus() to return.
-**
-** When the value returned to V is a string, space to hold that string is
-** managed by the prepared statement S and will be automatically freed when
-** S is finalized.
-**
-** <dl>
-** [[SQLITE_SCANSTAT_NLOOP]] <dt>SQLITE_SCANSTAT_NLOOP</dt>
-** <dd>^The [tdsqlite3_int64] variable pointed to by the V parameter will be
-** set to the total number of times that the X-th loop has run.</dd>
-**
-** [[SQLITE_SCANSTAT_NVISIT]] <dt>SQLITE_SCANSTAT_NVISIT</dt>
-** <dd>^The [tdsqlite3_int64] variable pointed to by the V parameter will be set
-** to the total number of rows examined by all iterations of the X-th loop.</dd>
-**
-** [[SQLITE_SCANSTAT_EST]] <dt>SQLITE_SCANSTAT_EST</dt>
-** <dd>^The "double" variable pointed to by the V parameter will be set to the
-** query planner's estimate for the average number of rows output from each
-** iteration of the X-th loop.  If the query planner's estimates was accurate,
-** then this value will approximate the quotient NVISIT/NLOOP and the
-** product of this value for all prior loops with the same SELECTID will
-** be the NLOOP value for the current loop.
-**
-** [[SQLITE_SCANSTAT_NAME]] <dt>SQLITE_SCANSTAT_NAME</dt>
-** <dd>^The "const char *" variable pointed to by the V parameter will be set
-** to a zero-terminated UTF-8 string containing the name of the index or table
-** used for the X-th loop.
-**
-** [[SQLITE_SCANSTAT_EXPLAIN]] <dt>SQLITE_SCANSTAT_EXPLAIN</dt>
-** <dd>^The "const char *" variable pointed to by the V parameter will be set
-** to a zero-terminated UTF-8 string containing the [EXPLAIN QUERY PLAN]
-** description for the X-th loop.
-**
-** [[SQLITE_SCANSTAT_SELECTID]] <dt>SQLITE_SCANSTAT_SELECT</dt>
-** <dd>^The "int" variable pointed to by the V parameter will be set to the
-** "select-id" for the X-th loop.  The select-id identifies which query or
-** subquery the loop is part of.  The main query has a select-id of zero.
-** The select-id is the same value as is output in the first column
-** of an [EXPLAIN QUERY PLAN] query.
-** </dl>
-*/
-#define SQLITE_SCANSTAT_NLOOP    0
-#define SQLITE_SCANSTAT_NVISIT   1
-#define SQLITE_SCANSTAT_EST      2
-#define SQLITE_SCANSTAT_NAME     3
-#define SQLITE_SCANSTAT_EXPLAIN  4
-#define SQLITE_SCANSTAT_SELECTID 5
-
-/*
-** CAPI3REF: Prepared Statement Scan Status
-** METHOD: tdsqlite3_stmt
-**
-** This interface returns information about the predicted and measured
-** performance for pStmt.  Advanced applications can use this
-** interface to compare the predicted and the measured performance and
-** issue warnings and/or rerun [ANALYZE] if discrepancies are found.
-**
-** Since this interface is expected to be rarely used, it is only
-** available if SQLite is compiled using the [SQLITE_ENABLE_STMT_SCANSTATUS]
-** compile-time option.
-**
-** The "iScanStatusOp" parameter determines which status information to return.
-** The "iScanStatusOp" must be one of the [scanstatus options] or the behavior
-** of this interface is undefined.
-** ^The requested measurement is written into a variable pointed to by
-** the "pOut" parameter.
-** Parameter "idx" identifies the specific loop to retrieve statistics for.
-** Loops are numbered starting from zero. ^If idx is out of range - less than
-** zero or greater than or equal to the total number of loops used to implement
-** the statement - a non-zero value is returned and the variable that pOut
-** points to is unchanged.
-**
-** ^Statistics might not be available for all loops in all statements. ^In cases
-** where there exist loops with no available statistics, this function behaves
-** as if the loop did not exist - it returns non-zero and leave the variable
-** that pOut points to unchanged.
-**
-** See also: [tdsqlite3_stmt_scanstatus_reset()]
-*/
-SQLITE_API int tdsqlite3_stmt_scanstatus(
-  tdsqlite3_stmt *pStmt,      /* Prepared statement for which info desired */
-  int idx,                  /* Index of loop to report on */
-  int iScanStatusOp,        /* Information desired.  SQLITE_SCANSTAT_* */
-  void *pOut                /* Result written here */
-);     
-
-/*
-** CAPI3REF: Zero Scan-Status Counters
-** METHOD: tdsqlite3_stmt
-**
-** ^Zero all [tdsqlite3_stmt_scanstatus()] related event counters.
-**
-** This API is only available if the library is built with pre-processor
-** symbol [SQLITE_ENABLE_STMT_SCANSTATUS] defined.
-*/
-SQLITE_API void tdsqlite3_stmt_scanstatus_reset(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Flush caches to disk mid-transaction
-**
-** ^If a write-transaction is open on [database connection] D when the
-** [tdsqlite3_db_cacheflush(D)] interface invoked, any dirty
-** pages in the pager-cache that are not currently in use are written out 
-** to disk. A dirty page may be in use if a database cursor created by an
-** active SQL statement is reading from it, or if it is page 1 of a database
-** file (page 1 is always "in use").  ^The [tdsqlite3_db_cacheflush(D)]
-** interface flushes caches for all schemas - "main", "temp", and
-** any [attached] databases.
-**
-** ^If this function needs to obtain extra database locks before dirty pages 
-** can be flushed to disk, it does so. ^If those locks cannot be obtained 
-** immediately and there is a busy-handler callback configured, it is invoked
-** in the usual manner. ^If the required lock still cannot be obtained, then
-** the database is skipped and an attempt made to flush any dirty pages
-** belonging to the next (if any) database. ^If any databases are skipped
-** because locks cannot be obtained, but no other error occurs, this
-** function returns SQLITE_BUSY.
-**
-** ^If any other error occurs while flushing dirty pages to disk (for
-** example an IO error or out-of-memory condition), then processing is
-** abandoned and an SQLite [error code] is returned to the caller immediately.
-**
-** ^Otherwise, if no error occurs, [tdsqlite3_db_cacheflush()] returns SQLITE_OK.
-**
-** ^This function does not set the database handle error code or message
-** returned by the [tdsqlite3_errcode()] and [tdsqlite3_errmsg()] functions.
-*/
-SQLITE_API int tdsqlite3_db_cacheflush(tdsqlite3*);
-
-/*
-** CAPI3REF: The pre-update hook.
-**
-** ^These interfaces are only available if SQLite is compiled using the
-** [SQLITE_ENABLE_PREUPDATE_HOOK] compile-time option.
-**
-** ^The [tdsqlite3_preupdate_hook()] interface registers a callback function
-** that is invoked prior to each [INSERT], [UPDATE], and [DELETE] operation
-** on a database table.
-** ^At most one preupdate hook may be registered at a time on a single
-** [database connection]; each call to [tdsqlite3_preupdate_hook()] overrides
-** the previous setting.
-** ^The preupdate hook is disabled by invoking [tdsqlite3_preupdate_hook()]
-** with a NULL pointer as the second parameter.
-** ^The third parameter to [tdsqlite3_preupdate_hook()] is passed through as
-** the first parameter to callbacks.
-**
-** ^The preupdate hook only fires for changes to real database tables; the
-** preupdate hook is not invoked for changes to [virtual tables] or to
-** system tables like sqlite_master or sqlite_stat1.
-**
-** ^The second parameter to the preupdate callback is a pointer to
-** the [database connection] that registered the preupdate hook.
-** ^The third parameter to the preupdate callback is one of the constants
-** [SQLITE_INSERT], [SQLITE_DELETE], or [SQLITE_UPDATE] to identify the
-** kind of update operation that is about to occur.
-** ^(The fourth parameter to the preupdate callback is the name of the
-** database within the database connection that is being modified.  This
-** will be "main" for the main database or "temp" for TEMP tables or 
-** the name given after the AS keyword in the [ATTACH] statement for attached
-** databases.)^
-** ^The fifth parameter to the preupdate callback is the name of the
-** table that is being modified.
-**
-** For an UPDATE or DELETE operation on a [rowid table], the sixth
-** parameter passed to the preupdate callback is the initial [rowid] of the 
-** row being modified or deleted. For an INSERT operation on a rowid table,
-** or any operation on a WITHOUT ROWID table, the value of the sixth 
-** parameter is undefined. For an INSERT or UPDATE on a rowid table the
-** seventh parameter is the final rowid value of the row being inserted
-** or updated. The value of the seventh parameter passed to the callback
-** function is not defined for operations on WITHOUT ROWID tables, or for
-** INSERT operations on rowid tables.
-**
-** The [tdsqlite3_preupdate_old()], [tdsqlite3_preupdate_new()],
-** [tdsqlite3_preupdate_count()], and [tdsqlite3_preupdate_depth()] interfaces
-** provide additional information about a preupdate event. These routines
-** may only be called from within a preupdate callback.  Invoking any of
-** these routines from outside of a preupdate callback or with a
-** [database connection] pointer that is different from the one supplied
-** to the preupdate callback results in undefined and probably undesirable
-** behavior.
-**
-** ^The [tdsqlite3_preupdate_count(D)] interface returns the number of columns
-** in the row that is being inserted, updated, or deleted.
-**
-** ^The [tdsqlite3_preupdate_old(D,N,P)] interface writes into P a pointer to
-** a [protected tdsqlite3_value] that contains the value of the Nth column of
-** the table row before it is updated.  The N parameter must be between 0
-** and one less than the number of columns or the behavior will be
-** undefined. This must only be used within SQLITE_UPDATE and SQLITE_DELETE
-** preupdate callbacks; if it is used by an SQLITE_INSERT callback then the
-** behavior is undefined.  The [tdsqlite3_value] that P points to
-** will be destroyed when the preupdate callback returns.
-**
-** ^The [tdsqlite3_preupdate_new(D,N,P)] interface writes into P a pointer to
-** a [protected tdsqlite3_value] that contains the value of the Nth column of
-** the table row after it is updated.  The N parameter must be between 0
-** and one less than the number of columns or the behavior will be
-** undefined. This must only be used within SQLITE_INSERT and SQLITE_UPDATE
-** preupdate callbacks; if it is used by an SQLITE_DELETE callback then the
-** behavior is undefined.  The [tdsqlite3_value] that P points to
-** will be destroyed when the preupdate callback returns.
-**
-** ^The [tdsqlite3_preupdate_depth(D)] interface returns 0 if the preupdate
-** callback was invoked as a result of a direct insert, update, or delete
-** operation; or 1 for inserts, updates, or deletes invoked by top-level 
-** triggers; or 2 for changes resulting from triggers called by top-level
-** triggers; and so forth.
-**
-** See also:  [tdsqlite3_update_hook()]
-*/
-#if defined(SQLITE_ENABLE_PREUPDATE_HOOK)
-SQLITE_API void *tdsqlite3_preupdate_hook(
-  tdsqlite3 *db,
-  void(*xPreUpdate)(
-    void *pCtx,                   /* Copy of third arg to preupdate_hook() */
-    tdsqlite3 *db,                  /* Database handle */
-    int op,                       /* SQLITE_UPDATE, DELETE or INSERT */
-    char const *zDb,              /* Database name */
-    char const *zName,            /* Table name */
-    tdsqlite3_int64 iKey1,          /* Rowid of row about to be deleted/updated */
-    tdsqlite3_int64 iKey2           /* New rowid value (for a rowid UPDATE) */
-  ),
-  void*
-);
-SQLITE_API int tdsqlite3_preupdate_old(tdsqlite3 *, int, tdsqlite3_value **);
-SQLITE_API int tdsqlite3_preupdate_count(tdsqlite3 *);
-SQLITE_API int tdsqlite3_preupdate_depth(tdsqlite3 *);
-SQLITE_API int tdsqlite3_preupdate_new(tdsqlite3 *, int, tdsqlite3_value **);
-#endif
-
-/*
-** CAPI3REF: Low-level system error code
-**
-** ^Attempt to return the underlying operating system error code or error
-** number that caused the most recent I/O error or failure to open a file.
-** The return value is OS-dependent.  For example, on unix systems, after
-** [tdsqlite3_open_v2()] returns [SQLITE_CANTOPEN], this interface could be
-** called to get back the underlying "errno" that caused the problem, such
-** as ENOSPC, EAUTH, EISDIR, and so forth.  
-*/
-SQLITE_API int tdsqlite3_system_errno(tdsqlite3*);
-
-/*
-** CAPI3REF: Database Snapshot
-** KEYWORDS: {snapshot} {tdsqlite3_snapshot}
-**
-** An instance of the snapshot object records the state of a [WAL mode]
-** database for some specific point in history.
-**
-** In [WAL mode], multiple [database connections] that are open on the
-** same database file can each be reading a different historical version
-** of the database file.  When a [database connection] begins a read
-** transaction, that connection sees an unchanging copy of the database
-** as it existed for the point in time when the transaction first started.
-** Subsequent changes to the database from other connections are not seen
-** by the reader until a new read transaction is started.
-**
-** The tdsqlite3_snapshot object records state information about an historical
-** version of the database file so that it is possible to later open a new read
-** transaction that sees that historical version of the database rather than
-** the most recent version.
-*/
-typedef struct tdsqlite3_snapshot {
-  unsigned char hidden[48];
-} tdsqlite3_snapshot;
-
-/*
-** CAPI3REF: Record A Database Snapshot
-** CONSTRUCTOR: tdsqlite3_snapshot
-**
-** ^The [tdsqlite3_snapshot_get(D,S,P)] interface attempts to make a
-** new [tdsqlite3_snapshot] object that records the current state of
-** schema S in database connection D.  ^On success, the
-** [tdsqlite3_snapshot_get(D,S,P)] interface writes a pointer to the newly
-** created [tdsqlite3_snapshot] object into *P and returns SQLITE_OK.
-** If there is not already a read-transaction open on schema S when
-** this function is called, one is opened automatically. 
-**
-** The following must be true for this function to succeed. If any of
-** the following statements are false when tdsqlite3_snapshot_get() is
-** called, SQLITE_ERROR is returned. The final value of *P is undefined
-** in this case. 
-**
-** <ul>
-**   <li> The database handle must not be in [autocommit mode].
-**
-**   <li> Schema S of [database connection] D must be a [WAL mode] database.
-**
-**   <li> There must not be a write transaction open on schema S of database
-**        connection D.
-**
-**   <li> One or more transactions must have been written to the current wal
-**        file since it was created on disk (by any connection). This means
-**        that a snapshot cannot be taken on a wal mode database with no wal 
-**        file immediately after it is first opened. At least one transaction
-**        must be written to it first.
-** </ul>
-**
-** This function may also return SQLITE_NOMEM.  If it is called with the
-** database handle in autocommit mode but fails for some other reason, 
-** whether or not a read transaction is opened on schema S is undefined.
-**
-** The [tdsqlite3_snapshot] object returned from a successful call to
-** [tdsqlite3_snapshot_get()] must be freed using [tdsqlite3_snapshot_free()]
-** to avoid a memory leak.
-**
-** The [tdsqlite3_snapshot_get()] interface is only available when the
-** [SQLITE_ENABLE_SNAPSHOT] compile-time option is used.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL int tdsqlite3_snapshot_get(
-  tdsqlite3 *db,
-  const char *zSchema,
-  tdsqlite3_snapshot **ppSnapshot
-);
-
-/*
-** CAPI3REF: Start a read transaction on an historical snapshot
-** METHOD: tdsqlite3_snapshot
-**
-** ^The [tdsqlite3_snapshot_open(D,S,P)] interface either starts a new read 
-** transaction or upgrades an existing one for schema S of 
-** [database connection] D such that the read transaction refers to 
-** historical [snapshot] P, rather than the most recent change to the 
-** database. ^The [tdsqlite3_snapshot_open()] interface returns SQLITE_OK 
-** on success or an appropriate [error code] if it fails.
-**
-** ^In order to succeed, the database connection must not be in 
-** [autocommit mode] when [tdsqlite3_snapshot_open(D,S,P)] is called. If there
-** is already a read transaction open on schema S, then the database handle
-** must have no active statements (SELECT statements that have been passed
-** to tdsqlite3_step() but not tdsqlite3_reset() or tdsqlite3_finalize()). 
-** SQLITE_ERROR is returned if either of these conditions is violated, or
-** if schema S does not exist, or if the snapshot object is invalid.
-**
-** ^A call to tdsqlite3_snapshot_open() will fail to open if the specified
-** snapshot has been overwritten by a [checkpoint]. In this case 
-** SQLITE_ERROR_SNAPSHOT is returned.
-**
-** If there is already a read transaction open when this function is 
-** invoked, then the same read transaction remains open (on the same
-** database snapshot) if SQLITE_ERROR, SQLITE_BUSY or SQLITE_ERROR_SNAPSHOT
-** is returned. If another error code - for example SQLITE_PROTOCOL or an
-** SQLITE_IOERR error code - is returned, then the final state of the
-** read transaction is undefined. If SQLITE_OK is returned, then the 
-** read transaction is now open on database snapshot P.
-**
-** ^(A call to [tdsqlite3_snapshot_open(D,S,P)] will fail if the
-** database connection D does not know that the database file for
-** schema S is in [WAL mode].  A database connection might not know
-** that the database file is in [WAL mode] if there has been no prior
-** I/O on that database connection, or if the database entered [WAL mode] 
-** after the most recent I/O on the database connection.)^
-** (Hint: Run "[PRAGMA application_id]" against a newly opened
-** database connection in order to make it ready to use snapshots.)
-**
-** The [tdsqlite3_snapshot_open()] interface is only available when the
-** [SQLITE_ENABLE_SNAPSHOT] compile-time option is used.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL int tdsqlite3_snapshot_open(
-  tdsqlite3 *db,
-  const char *zSchema,
-  tdsqlite3_snapshot *pSnapshot
-);
-
-/*
-** CAPI3REF: Destroy a snapshot
-** DESTRUCTOR: tdsqlite3_snapshot
-**
-** ^The [tdsqlite3_snapshot_free(P)] interface destroys [tdsqlite3_snapshot] P.
-** The application must eventually free every [tdsqlite3_snapshot] object
-** using this routine to avoid a memory leak.
-**
-** The [tdsqlite3_snapshot_free()] interface is only available when the
-** [SQLITE_ENABLE_SNAPSHOT] compile-time option is used.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL void tdsqlite3_snapshot_free(tdsqlite3_snapshot*);
-
-/*
-** CAPI3REF: Compare the ages of two snapshot handles.
-** METHOD: tdsqlite3_snapshot
-**
-** The tdsqlite3_snapshot_cmp(P1, P2) interface is used to compare the ages
-** of two valid snapshot handles. 
-**
-** If the two snapshot handles are not associated with the same database 
-** file, the result of the comparison is undefined. 
-**
-** Additionally, the result of the comparison is only valid if both of the
-** snapshot handles were obtained by calling tdsqlite3_snapshot_get() since the
-** last time the wal file was deleted. The wal file is deleted when the
-** database is changed back to rollback mode or when the number of database
-** clients drops to zero. If either snapshot handle was obtained before the 
-** wal file was last deleted, the value returned by this function 
-** is undefined.
-**
-** Otherwise, this API returns a negative value if P1 refers to an older
-** snapshot than P2, zero if the two handles refer to the same database
-** snapshot, and a positive value if P1 is a newer snapshot than P2.
-**
-** This interface is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_SNAPSHOT] option.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL int tdsqlite3_snapshot_cmp(
-  tdsqlite3_snapshot *p1,
-  tdsqlite3_snapshot *p2
-);
-
-/*
-** CAPI3REF: Recover snapshots from a wal file
-** METHOD: tdsqlite3_snapshot
-**
-** If a [WAL file] remains on disk after all database connections close
-** (either through the use of the [SQLITE_FCNTL_PERSIST_WAL] [file control]
-** or because the last process to have the database opened exited without
-** calling [tdsqlite3_close()]) and a new connection is subsequently opened
-** on that database and [WAL file], the [tdsqlite3_snapshot_open()] interface
-** will only be able to open the last transaction added to the WAL file
-** even though the WAL file contains other valid transactions.
-**
-** This function attempts to scan the WAL file associated with database zDb
-** of database handle db and make all valid snapshots available to
-** tdsqlite3_snapshot_open(). It is an error if there is already a read
-** transaction open on the database, or if the database is not a WAL mode
-** database.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-**
-** This interface is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_SNAPSHOT] option.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL int tdsqlite3_snapshot_recover(tdsqlite3 *db, const char *zDb);
-
-/*
-** CAPI3REF: Serialize a database
-**
-** The tdsqlite3_serialize(D,S,P,F) interface returns a pointer to memory
-** that is a serialization of the S database on [database connection] D.
-** If P is not a NULL pointer, then the size of the database in bytes
-** is written into *P.
-**
-** For an ordinary on-disk database file, the serialization is just a
-** copy of the disk file.  For an in-memory database or a "TEMP" database,
-** the serialization is the same sequence of bytes which would be written
-** to disk if that database where backed up to disk.
-**
-** The usual case is that tdsqlite3_serialize() copies the serialization of
-** the database into memory obtained from [tdsqlite3_malloc64()] and returns
-** a pointer to that memory.  The caller is responsible for freeing the
-** returned value to avoid a memory leak.  However, if the F argument
-** contains the SQLITE_SERIALIZE_NOCOPY bit, then no memory allocations
-** are made, and the tdsqlite3_serialize() function will return a pointer
-** to the contiguous memory representation of the database that SQLite
-** is currently using for that database, or NULL if the no such contiguous
-** memory representation of the database exists.  A contiguous memory
-** representation of the database will usually only exist if there has
-** been a prior call to [tdsqlite3_deserialize(D,S,...)] with the same
-** values of D and S.
-** The size of the database is written into *P even if the 
-** SQLITE_SERIALIZE_NOCOPY bit is set but no contiguous copy
-** of the database exists.
-**
-** A call to tdsqlite3_serialize(D,S,P,F) might return NULL even if the
-** SQLITE_SERIALIZE_NOCOPY bit is omitted from argument F if a memory
-** allocation error occurs.
-**
-** This interface is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_DESERIALIZE] option.
-*/
-SQLITE_API unsigned char *tdsqlite3_serialize(
-  tdsqlite3 *db,           /* The database connection */
-  const char *zSchema,   /* Which DB to serialize. ex: "main", "temp", ... */
-  tdsqlite3_int64 *piSize, /* Write size of the DB here, if not NULL */
-  unsigned int mFlags    /* Zero or more SQLITE_SERIALIZE_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3_serialize
-**
-** Zero or more of the following constants can be OR-ed together for
-** the F argument to [tdsqlite3_serialize(D,S,P,F)].
-**
-** SQLITE_SERIALIZE_NOCOPY means that [tdsqlite3_serialize()] will return
-** a pointer to contiguous in-memory database that it is currently using,
-** without making a copy of the database.  If SQLite is not currently using
-** a contiguous in-memory database, then this option causes
-** [tdsqlite3_serialize()] to return a NULL pointer.  SQLite will only be
-** using a contiguous in-memory database if it has been initialized by a
-** prior call to [tdsqlite3_deserialize()].
-*/
-#define SQLITE_SERIALIZE_NOCOPY 0x001   /* Do no memory allocations */
-
-/*
-** CAPI3REF: Deserialize a database
-**
-** The tdsqlite3_deserialize(D,S,P,N,M,F) interface causes the 
-** [database connection] D to disconnect from database S and then
-** reopen S as an in-memory database based on the serialization contained
-** in P.  The serialized database P is N bytes in size.  M is the size of
-** the buffer P, which might be larger than N.  If M is larger than N, and
-** the SQLITE_DESERIALIZE_READONLY bit is not set in F, then SQLite is
-** permitted to add content to the in-memory database as long as the total
-** size does not exceed M bytes.
-**
-** If the SQLITE_DESERIALIZE_FREEONCLOSE bit is set in F, then SQLite will
-** invoke tdsqlite3_free() on the serialization buffer when the database
-** connection closes.  If the SQLITE_DESERIALIZE_RESIZEABLE bit is set, then
-** SQLite will try to increase the buffer size using tdsqlite3_realloc64()
-** if writes on the database cause it to grow larger than M bytes.
-**
-** The tdsqlite3_deserialize() interface will fail with SQLITE_BUSY if the
-** database is currently in a read transaction or is involved in a backup
-** operation.
-**
-** If tdsqlite3_deserialize(D,S,P,N,M,F) fails for any reason and if the 
-** SQLITE_DESERIALIZE_FREEONCLOSE bit is set in argument F, then
-** [tdsqlite3_free()] is invoked on argument P prior to returning.
-**
-** This interface is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_DESERIALIZE] option.
-*/
-SQLITE_API int tdsqlite3_deserialize(
-  tdsqlite3 *db,            /* The database connection */
-  const char *zSchema,    /* Which DB to reopen with the deserialization */
-  unsigned char *pData,   /* The serialized database content */
-  tdsqlite3_int64 szDb,     /* Number bytes in the deserialization */
-  tdsqlite3_int64 szBuf,    /* Total size of buffer pData[] */
-  unsigned mFlags         /* Zero or more SQLITE_DESERIALIZE_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3_deserialize()
-**
-** The following are allowed values for 6th argument (the F argument) to
-** the [tdsqlite3_deserialize(D,S,P,N,M,F)] interface.
-**
-** The SQLITE_DESERIALIZE_FREEONCLOSE means that the database serialization
-** in the P argument is held in memory obtained from [tdsqlite3_malloc64()]
-** and that SQLite should take ownership of this memory and automatically
-** free it when it has finished using it.  Without this flag, the caller
-** is responsible for freeing any dynamically allocated memory.
-**
-** The SQLITE_DESERIALIZE_RESIZEABLE flag means that SQLite is allowed to
-** grow the size of the database using calls to [tdsqlite3_realloc64()].  This
-** flag should only be used if SQLITE_DESERIALIZE_FREEONCLOSE is also used.
-** Without this flag, the deserialized database cannot increase in size beyond
-** the number of bytes specified by the M parameter.
-**
-** The SQLITE_DESERIALIZE_READONLY flag means that the deserialized database
-** should be treated as read-only.
-*/
-#define SQLITE_DESERIALIZE_FREEONCLOSE 1 /* Call tdsqlite3_free() on close */
-#define SQLITE_DESERIALIZE_RESIZEABLE  2 /* Resize using tdsqlite3_realloc64() */
-#define SQLITE_DESERIALIZE_READONLY    4 /* Database is read-only */
-
-/*
-** Undo the hack that converts floating point types to integer for
-** builds on processors without floating point support.
-*/
-#ifdef SQLITE_OMIT_FLOATING_POINT
-# undef double
-#endif
-
-#if 0
-}  /* End of the 'extern "C"' block */
-#endif
-#endif /* SQLITE3_H */
-
-/******** Begin file tdsqlite3rtree.h *********/
-/*
-** 2010 August 30
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-*/
-
-#ifndef _SQLITE3RTREE_H_
-#define _SQLITE3RTREE_H_
-
-
-#if 0
-extern "C" {
-#endif
-
-typedef struct tdsqlite3_rtree_geometry tdsqlite3_rtree_geometry;
-typedef struct tdsqlite3_rtree_query_info tdsqlite3_rtree_query_info;
-
-/* The double-precision datatype used by RTree depends on the
-** SQLITE_RTREE_INT_ONLY compile-time option.
-*/
-#ifdef SQLITE_RTREE_INT_ONLY
-  typedef tdsqlite3_int64 tdsqlite3_rtree_dbl;
-#else
-  typedef double tdsqlite3_rtree_dbl;
-#endif
-
-/*
-** Register a geometry callback named zGeom that can be used as part of an
-** R-Tree geometry query as follows:
-**
-**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...)
-*/
-SQLITE_API int tdsqlite3_rtree_geometry_callback(
-  tdsqlite3 *db,
-  const char *zGeom,
-  int (*xGeom)(tdsqlite3_rtree_geometry*, int, tdsqlite3_rtree_dbl*,int*),
-  void *pContext
-);
-
-
-/*
-** A pointer to a structure of the following type is passed as the first
-** argument to callbacks registered using rtree_geometry_callback().
-*/
-struct tdsqlite3_rtree_geometry {
-  void *pContext;                 /* Copy of pContext passed to s_r_g_c() */
-  int nParam;                     /* Size of array aParam[] */
-  tdsqlite3_rtree_dbl *aParam;      /* Parameters passed to SQL geom function */
-  void *pUser;                    /* Callback implementation user data */
-  void (*xDelUser)(void *);       /* Called by SQLite to clean up pUser */
-};
-
-/*
-** Register a 2nd-generation geometry callback named zScore that can be 
-** used as part of an R-Tree geometry query as follows:
-**
-**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zQueryFunc(... params ...)
-*/
-SQLITE_API int tdsqlite3_rtree_query_callback(
-  tdsqlite3 *db,
-  const char *zQueryFunc,
-  int (*xQueryFunc)(tdsqlite3_rtree_query_info*),
-  void *pContext,
-  void (*xDestructor)(void*)
-);
-
-
-/*
-** A pointer to a structure of the following type is passed as the 
-** argument to scored geometry callback registered using
-** tdsqlite3_rtree_query_callback().
-**
-** Note that the first 5 fields of this structure are identical to
-** tdsqlite3_rtree_geometry.  This structure is a subclass of
-** tdsqlite3_rtree_geometry.
-*/
-struct tdsqlite3_rtree_query_info {
-  void *pContext;                   /* pContext from when function registered */
-  int nParam;                       /* Number of function parameters */
-  tdsqlite3_rtree_dbl *aParam;        /* value of function parameters */
-  void *pUser;                      /* callback can use this, if desired */
-  void (*xDelUser)(void*);          /* function to free pUser */
-  tdsqlite3_rtree_dbl *aCoord;        /* Coordinates of node or entry to check */
-  unsigned int *anQueue;            /* Number of pending entries in the queue */
-  int nCoord;                       /* Number of coordinates */
-  int iLevel;                       /* Level of current node or entry */
-  int mxLevel;                      /* The largest iLevel value in the tree */
-  tdsqlite3_int64 iRowid;             /* Rowid for current entry */
-  tdsqlite3_rtree_dbl rParentScore;   /* Score of parent node */
-  int eParentWithin;                /* Visibility of parent node */
-  int eWithin;                      /* OUT: Visibility */
-  tdsqlite3_rtree_dbl rScore;         /* OUT: Write the score here */
-  /* The following fields are only available in 3.8.11 and later */
-  tdsqlite3_value **apSqlParam;       /* Original SQL values of parameters */
-};
-
-/*
-** Allowed values for tdsqlite3_rtree_query.eWithin and .eParentWithin.
-*/
-#define NOT_WITHIN       0   /* Object completely outside of query region */
-#define PARTLY_WITHIN    1   /* Object partially overlaps query region */
-#define FULLY_WITHIN     2   /* Object fully contained within query region */
-
-
-#if 0
-}  /* end of the 'extern "C"' block */
-#endif
-
-#endif  /* ifndef _SQLITE3RTREE_H_ */
-
-/******** End of tdsqlite3rtree.h *********/
-/******** Begin file tdsqlite3session.h *********/
-
-#if !defined(__SQLITESESSION_H_) && defined(SQLITE_ENABLE_SESSION)
-#define __SQLITESESSION_H_ 1
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#if 0
-extern "C" {
-#endif
-
-
-/*
-** CAPI3REF: Session Object Handle
-**
-** An instance of this object is a [session] that can be used to
-** record changes to a database.
-*/
-typedef struct tdsqlite3_session tdsqlite3_session;
-
-/*
-** CAPI3REF: Changeset Iterator Handle
-**
-** An instance of this object acts as a cursor for iterating
-** over the elements of a [changeset] or [patchset].
-*/
-typedef struct tdsqlite3_changeset_iter tdsqlite3_changeset_iter;
-
-/*
-** CAPI3REF: Create A New Session Object
-** CONSTRUCTOR: tdsqlite3_session
-**
-** Create a new session object attached to database handle db. If successful,
-** a pointer to the new object is written to *ppSession and SQLITE_OK is
-** returned. If an error occurs, *ppSession is set to NULL and an SQLite
-** error code (e.g. SQLITE_NOMEM) is returned.
-**
-** It is possible to create multiple session objects attached to a single
-** database handle.
-**
-** Session objects created using this function should be deleted using the
-** [tdsqlite3session_delete()] function before the database handle that they
-** are attached to is itself closed. If the database handle is closed before
-** the session object is deleted, then the results of calling any session
-** module function, including [tdsqlite3session_delete()] on the session object
-** are undefined.
-**
-** Because the session module uses the [tdsqlite3_preupdate_hook()] API, it
-** is not possible for an application to register a pre-update hook on a
-** database handle that has one or more session objects attached. Nor is
-** it possible to create a session object attached to a database handle for
-** which a pre-update hook is already defined. The results of attempting 
-** either of these things are undefined.
-**
-** The session object will be used to create changesets for tables in
-** database zDb, where zDb is either "main", or "temp", or the name of an
-** attached database. It is not an error if database zDb is not attached
-** to the database when the session object is created.
-*/
-SQLITE_API int tdsqlite3session_create(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Name of db (e.g. "main") */
-  tdsqlite3_session **ppSession     /* OUT: New session object */
-);
-
-/*
-** CAPI3REF: Delete A Session Object
-** DESTRUCTOR: tdsqlite3_session
-**
-** Delete a session object previously allocated using 
-** [tdsqlite3session_create()]. Once a session object has been deleted, the
-** results of attempting to use pSession with any other session module
-** function are undefined.
-**
-** Session objects must be deleted before the database handle to which they
-** are attached is closed. Refer to the documentation for 
-** [tdsqlite3session_create()] for details.
-*/
-SQLITE_API void tdsqlite3session_delete(tdsqlite3_session *pSession);
-
-
-/*
-** CAPI3REF: Enable Or Disable A Session Object
-** METHOD: tdsqlite3_session
-**
-** Enable or disable the recording of changes by a session object. When
-** enabled, a session object records changes made to the database. When
-** disabled - it does not. A newly created session object is enabled.
-** Refer to the documentation for [tdsqlite3session_changeset()] for further
-** details regarding how enabling and disabling a session object affects
-** the eventual changesets.
-**
-** Passing zero to this function disables the session. Passing a value
-** greater than zero enables it. Passing a value less than zero is a 
-** no-op, and may be used to query the current state of the session.
-**
-** The return value indicates the final state of the session object: 0 if 
-** the session is disabled, or 1 if it is enabled.
-*/
-SQLITE_API int tdsqlite3session_enable(tdsqlite3_session *pSession, int bEnable);
-
-/*
-** CAPI3REF: Set Or Clear the Indirect Change Flag
-** METHOD: tdsqlite3_session
-**
-** Each change recorded by a session object is marked as either direct or
-** indirect. A change is marked as indirect if either:
-**
-** <ul>
-**   <li> The session object "indirect" flag is set when the change is
-**        made, or
-**   <li> The change is made by an SQL trigger or foreign key action 
-**        instead of directly as a result of a users SQL statement.
-** </ul>
-**
-** If a single row is affected by more than one operation within a session,
-** then the change is considered indirect if all operations meet the criteria
-** for an indirect change above, or direct otherwise.
-**
-** This function is used to set, clear or query the session object indirect
-** flag.  If the second argument passed to this function is zero, then the
-** indirect flag is cleared. If it is greater than zero, the indirect flag
-** is set. Passing a value less than zero does not modify the current value
-** of the indirect flag, and may be used to query the current state of the 
-** indirect flag for the specified session object.
-**
-** The return value indicates the final state of the indirect flag: 0 if 
-** it is clear, or 1 if it is set.
-*/
-SQLITE_API int tdsqlite3session_indirect(tdsqlite3_session *pSession, int bIndirect);
-
-/*
-** CAPI3REF: Attach A Table To A Session Object
-** METHOD: tdsqlite3_session
-**
-** If argument zTab is not NULL, then it is the name of a table to attach
-** to the session object passed as the first argument. All subsequent changes 
-** made to the table while the session object is enabled will be recorded. See 
-** documentation for [tdsqlite3session_changeset()] for further details.
-**
-** Or, if argument zTab is NULL, then changes are recorded for all tables
-** in the database. If additional tables are added to the database (by 
-** executing "CREATE TABLE" statements) after this call is made, changes for 
-** the new tables are also recorded.
-**
-** Changes can only be recorded for tables that have a PRIMARY KEY explicitly
-** defined as part of their CREATE TABLE statement. It does not matter if the 
-** PRIMARY KEY is an "INTEGER PRIMARY KEY" (rowid alias) or not. The PRIMARY
-** KEY may consist of a single column, or may be a composite key.
-** 
-** It is not an error if the named table does not exist in the database. Nor
-** is it an error if the named table does not have a PRIMARY KEY. However,
-** no changes will be recorded in either of these scenarios.
-**
-** Changes are not recorded for individual rows that have NULL values stored
-** in one or more of their PRIMARY KEY columns.
-**
-** SQLITE_OK is returned if the call completes without error. Or, if an error 
-** occurs, an SQLite error code (e.g. SQLITE_NOMEM) is returned.
-**
-** <h3>Special sqlite_stat1 Handling</h3>
-**
-** As of SQLite version 3.22.0, the "sqlite_stat1" table is an exception to 
-** some of the rules above. In SQLite, the schema of sqlite_stat1 is:
-**  <pre>
-**  &nbsp;     CREATE TABLE sqlite_stat1(tbl,idx,stat)  
-**  </pre>
-**
-** Even though sqlite_stat1 does not have a PRIMARY KEY, changes are 
-** recorded for it as if the PRIMARY KEY is (tbl,idx). Additionally, changes 
-** are recorded for rows for which (idx IS NULL) is true. However, for such
-** rows a zero-length blob (SQL value X'') is stored in the changeset or
-** patchset instead of a NULL value. This allows such changesets to be
-** manipulated by legacy implementations of tdsqlite3changeset_invert(),
-** concat() and similar.
-**
-** The tdsqlite3changeset_apply() function automatically converts the 
-** zero-length blob back to a NULL value when updating the sqlite_stat1
-** table. However, if the application calls tdsqlite3changeset_new(),
-** tdsqlite3changeset_old() or tdsqlite3changeset_conflict on a changeset 
-** iterator directly (including on a changeset iterator passed to a
-** conflict-handler callback) then the X'' value is returned. The application
-** must translate X'' to NULL itself if required.
-**
-** Legacy (older than 3.22.0) versions of the sessions module cannot capture
-** changes made to the sqlite_stat1 table. Legacy versions of the
-** tdsqlite3changeset_apply() function silently ignore any modifications to the
-** sqlite_stat1 table that are part of a changeset or patchset.
-*/
-SQLITE_API int tdsqlite3session_attach(
-  tdsqlite3_session *pSession,      /* Session object */
-  const char *zTab                /* Table name */
-);
-
-/*
-** CAPI3REF: Set a table filter on a Session Object.
-** METHOD: tdsqlite3_session
-**
-** The second argument (xFilter) is the "filter callback". For changes to rows 
-** in tables that are not attached to the Session object, the filter is called
-** to determine whether changes to the table's rows should be tracked or not. 
-** If xFilter returns 0, changes are not tracked. Note that once a table is 
-** attached, xFilter will not be called again.
-*/
-SQLITE_API void tdsqlite3session_table_filter(
-  tdsqlite3_session *pSession,      /* Session object */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of third arg to _filter_table() */
-    const char *zTab              /* Table name */
-  ),
-  void *pCtx                      /* First argument passed to xFilter */
-);
-
-/*
-** CAPI3REF: Generate A Changeset From A Session Object
-** METHOD: tdsqlite3_session
-**
-** Obtain a changeset containing changes to the tables attached to the 
-** session object passed as the first argument. If successful, 
-** set *ppChangeset to point to a buffer containing the changeset 
-** and *pnChangeset to the size of the changeset in bytes before returning
-** SQLITE_OK. If an error occurs, set both *ppChangeset and *pnChangeset to
-** zero and return an SQLite error code.
-**
-** A changeset consists of zero or more INSERT, UPDATE and/or DELETE changes,
-** each representing a change to a single row of an attached table. An INSERT
-** change contains the values of each field of a new database row. A DELETE
-** contains the original values of each field of a deleted database row. An
-** UPDATE change contains the original values of each field of an updated
-** database row along with the updated values for each updated non-primary-key
-** column. It is not possible for an UPDATE change to represent a change that
-** modifies the values of primary key columns. If such a change is made, it
-** is represented in a changeset as a DELETE followed by an INSERT.
-**
-** Changes are not recorded for rows that have NULL values stored in one or 
-** more of their PRIMARY KEY columns. If such a row is inserted or deleted,
-** no corresponding change is present in the changesets returned by this
-** function. If an existing row with one or more NULL values stored in
-** PRIMARY KEY columns is updated so that all PRIMARY KEY columns are non-NULL,
-** only an INSERT is appears in the changeset. Similarly, if an existing row
-** with non-NULL PRIMARY KEY values is updated so that one or more of its
-** PRIMARY KEY columns are set to NULL, the resulting changeset contains a
-** DELETE change only.
-**
-** The contents of a changeset may be traversed using an iterator created
-** using the [tdsqlite3changeset_start()] API. A changeset may be applied to
-** a database with a compatible schema using the [tdsqlite3changeset_apply()]
-** API.
-**
-** Within a changeset generated by this function, all changes related to a
-** single table are grouped together. In other words, when iterating through
-** a changeset or when applying a changeset to a database, all changes related
-** to a single table are processed before moving on to the next table. Tables
-** are sorted in the same order in which they were attached (or auto-attached)
-** to the tdsqlite3_session object. The order in which the changes related to
-** a single table are stored is undefined.
-**
-** Following a successful call to this function, it is the responsibility of
-** the caller to eventually free the buffer that *ppChangeset points to using
-** [tdsqlite3_free()].
-**
-** <h3>Changeset Generation</h3>
-**
-** Once a table has been attached to a session object, the session object
-** records the primary key values of all new rows inserted into the table.
-** It also records the original primary key and other column values of any
-** deleted or updated rows. For each unique primary key value, data is only
-** recorded once - the first time a row with said primary key is inserted,
-** updated or deleted in the lifetime of the session.
-**
-** There is one exception to the previous paragraph: when a row is inserted,
-** updated or deleted, if one or more of its primary key columns contain a
-** NULL value, no record of the change is made.
-**
-** The session object therefore accumulates two types of records - those
-** that consist of primary key values only (created when the user inserts
-** a new record) and those that consist of the primary key values and the
-** original values of other table columns (created when the users deletes
-** or updates a record).
-**
-** When this function is called, the requested changeset is created using
-** both the accumulated records and the current contents of the database
-** file. Specifically:
-**
-** <ul>
-**   <li> For each record generated by an insert, the database is queried
-**        for a row with a matching primary key. If one is found, an INSERT
-**        change is added to the changeset. If no such row is found, no change 
-**        is added to the changeset.
-**
-**   <li> For each record generated by an update or delete, the database is 
-**        queried for a row with a matching primary key. If such a row is
-**        found and one or more of the non-primary key fields have been
-**        modified from their original values, an UPDATE change is added to 
-**        the changeset. Or, if no such row is found in the table, a DELETE 
-**        change is added to the changeset. If there is a row with a matching
-**        primary key in the database, but all fields contain their original
-**        values, no change is added to the changeset.
-** </ul>
-**
-** This means, amongst other things, that if a row is inserted and then later
-** deleted while a session object is active, neither the insert nor the delete
-** will be present in the changeset. Or if a row is deleted and then later a 
-** row with the same primary key values inserted while a session object is
-** active, the resulting changeset will contain an UPDATE change instead of
-** a DELETE and an INSERT.
-**
-** When a session object is disabled (see the [tdsqlite3session_enable()] API),
-** it does not accumulate records when rows are inserted, updated or deleted.
-** This may appear to have some counter-intuitive effects if a single row
-** is written to more than once during a session. For example, if a row
-** is inserted while a session object is enabled, then later deleted while 
-** the same session object is disabled, no INSERT record will appear in the
-** changeset, even though the delete took place while the session was disabled.
-** Or, if one field of a row is updated while a session is disabled, and 
-** another field of the same row is updated while the session is enabled, the
-** resulting changeset will contain an UPDATE change that updates both fields.
-*/
-SQLITE_API int tdsqlite3session_changeset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
-  void **ppChangeset              /* OUT: Buffer containing changeset */
-);
-
-/*
-** CAPI3REF: Load The Difference Between Tables Into A Session
-** METHOD: tdsqlite3_session
-**
-** If it is not already attached to the session object passed as the first
-** argument, this function attaches table zTbl in the same manner as the
-** [tdsqlite3session_attach()] function. If zTbl does not exist, or if it
-** does not have a primary key, this function is a no-op (but does not return
-** an error).
-**
-** Argument zFromDb must be the name of a database ("main", "temp" etc.)
-** attached to the same database handle as the session object that contains 
-** a table compatible with the table attached to the session by this function.
-** A table is considered compatible if it:
-**
-** <ul>
-**   <li> Has the same name,
-**   <li> Has the same set of columns declared in the same order, and
-**   <li> Has the same PRIMARY KEY definition.
-** </ul>
-**
-** If the tables are not compatible, SQLITE_SCHEMA is returned. If the tables
-** are compatible but do not have any PRIMARY KEY columns, it is not an error
-** but no changes are added to the session object. As with other session
-** APIs, tables without PRIMARY KEYs are simply ignored.
-**
-** This function adds a set of changes to the session object that could be
-** used to update the table in database zFrom (call this the "from-table") 
-** so that its content is the same as the table attached to the session 
-** object (call this the "to-table"). Specifically:
-**
-** <ul>
-**   <li> For each row (primary key) that exists in the to-table but not in 
-**     the from-table, an INSERT record is added to the session object.
-**
-**   <li> For each row (primary key) that exists in the to-table but not in 
-**     the from-table, a DELETE record is added to the session object.
-**
-**   <li> For each row (primary key) that exists in both tables, but features 
-**     different non-PK values in each, an UPDATE record is added to the
-**     session.  
-** </ul>
-**
-** To clarify, if this function is called and then a changeset constructed
-** using [tdsqlite3session_changeset()], then after applying that changeset to 
-** database zFrom the contents of the two compatible tables would be 
-** identical.
-**
-** It an error if database zFrom does not exist or does not contain the
-** required compatible table.
-**
-** If the operation is successful, SQLITE_OK is returned. Otherwise, an SQLite
-** error code. In this case, if argument pzErrMsg is not NULL, *pzErrMsg
-** may be set to point to a buffer containing an English language error 
-** message. It is the responsibility of the caller to free this buffer using
-** tdsqlite3_free().
-*/
-SQLITE_API int tdsqlite3session_diff(
-  tdsqlite3_session *pSession,
-  const char *zFromDb,
-  const char *zTbl,
-  char **pzErrMsg
-);
-
-
-/*
-** CAPI3REF: Generate A Patchset From A Session Object
-** METHOD: tdsqlite3_session
-**
-** The differences between a patchset and a changeset are that:
-**
-** <ul>
-**   <li> DELETE records consist of the primary key fields only. The 
-**        original values of other fields are omitted.
-**   <li> The original values of any modified fields are omitted from 
-**        UPDATE records.
-** </ul>
-**
-** A patchset blob may be used with up to date versions of all 
-** tdsqlite3changeset_xxx API functions except for tdsqlite3changeset_invert(), 
-** which returns SQLITE_CORRUPT if it is passed a patchset. Similarly,
-** attempting to use a patchset blob with old versions of the
-** tdsqlite3changeset_xxx APIs also provokes an SQLITE_CORRUPT error. 
-**
-** Because the non-primary key "old.*" fields are omitted, no 
-** SQLITE_CHANGESET_DATA conflicts can be detected or reported if a patchset
-** is passed to the tdsqlite3changeset_apply() API. Other conflict types work
-** in the same way as for changesets.
-**
-** Changes within a patchset are ordered in the same way as for changesets
-** generated by the tdsqlite3session_changeset() function (i.e. all changes for
-** a single table are grouped together, tables appear in the order in which
-** they were attached to the session object).
-*/
-SQLITE_API int tdsqlite3session_patchset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int *pnPatchset,                /* OUT: Size of buffer at *ppPatchset */
-  void **ppPatchset               /* OUT: Buffer containing patchset */
-);
-
-/*
-** CAPI3REF: Test if a changeset has recorded any changes.
-**
-** Return non-zero if no changes to attached tables have been recorded by 
-** the session object passed as the first argument. Otherwise, if one or 
-** more changes have been recorded, return zero.
-**
-** Even if this function returns zero, it is possible that calling
-** [tdsqlite3session_changeset()] on the session handle may still return a
-** changeset that contains no changes. This can happen when a row in 
-** an attached table is modified and then later on the original values 
-** are restored. However, if this function returns non-zero, then it is
-** guaranteed that a call to tdsqlite3session_changeset() will return a 
-** changeset containing zero changes.
-*/
-SQLITE_API int tdsqlite3session_isempty(tdsqlite3_session *pSession);
-
-/*
-** CAPI3REF: Create An Iterator To Traverse A Changeset 
-** CONSTRUCTOR: tdsqlite3_changeset_iter
-**
-** Create an iterator used to iterate through the contents of a changeset.
-** If successful, *pp is set to point to the iterator handle and SQLITE_OK
-** is returned. Otherwise, if an error occurs, *pp is set to zero and an
-** SQLite error code is returned.
-**
-** The following functions can be used to advance and query a changeset 
-** iterator created by this function:
-**
-** <ul>
-**   <li> [tdsqlite3changeset_next()]
-**   <li> [tdsqlite3changeset_op()]
-**   <li> [tdsqlite3changeset_new()]
-**   <li> [tdsqlite3changeset_old()]
-** </ul>
-**
-** It is the responsibility of the caller to eventually destroy the iterator
-** by passing it to [tdsqlite3changeset_finalize()]. The buffer containing the
-** changeset (pChangeset) must remain valid until after the iterator is
-** destroyed.
-**
-** Assuming the changeset blob was created by one of the
-** [tdsqlite3session_changeset()], [tdsqlite3changeset_concat()] or
-** [tdsqlite3changeset_invert()] functions, all changes within the changeset 
-** that apply to a single table are grouped together. This means that when 
-** an application iterates through a changeset using an iterator created by 
-** this function, all changes that relate to a single table are visited 
-** consecutively. There is no chance that the iterator will visit a change 
-** the applies to table X, then one for table Y, and then later on visit 
-** another change for table X.
-**
-** The behavior of tdsqlite3changeset_start_v2() and its streaming equivalent
-** may be modified by passing a combination of
-** [SQLITE_CHANGESETSTART_INVERT | supported flags] as the 4th parameter.
-**
-** Note that the tdsqlite3changeset_start_v2() API is still <b>experimental</b>
-** and therefore subject to change.
-*/
-SQLITE_API int tdsqlite3changeset_start(
-  tdsqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
-  int nChangeset,                 /* Size of changeset blob in bytes */
-  void *pChangeset                /* Pointer to blob containing changeset */
-);
-SQLITE_API int tdsqlite3changeset_start_v2(
-  tdsqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
-  int nChangeset,                 /* Size of changeset blob in bytes */
-  void *pChangeset,               /* Pointer to blob containing changeset */
-  int flags                       /* SESSION_CHANGESETSTART_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3changeset_start_v2
-**
-** The following flags may passed via the 4th parameter to
-** [tdsqlite3changeset_start_v2] and [tdsqlite3changeset_start_v2_strm]:
-**
-** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
-**   Invert the changeset while iterating through it. This is equivalent to
-**   inverting a changeset using tdsqlite3changeset_invert() before applying it.
-**   It is an error to specify this flag with a patchset.
-*/
-#define SQLITE_CHANGESETSTART_INVERT        0x0002
-
-
-/*
-** CAPI3REF: Advance A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function may only be used with iterators created by the function
-** [tdsqlite3changeset_start()]. If it is called on an iterator passed to
-** a conflict-handler callback by [tdsqlite3changeset_apply()], SQLITE_MISUSE
-** is returned and the call has no effect.
-**
-** Immediately after an iterator is created by tdsqlite3changeset_start(), it
-** does not point to any change in the changeset. Assuming the changeset
-** is not empty, the first call to this function advances the iterator to
-** point to the first change in the changeset. Each subsequent call advances
-** the iterator to point to the next change in the changeset (if any). If
-** no error occurs and the iterator points to a valid change after a call
-** to tdsqlite3changeset_next() has advanced it, SQLITE_ROW is returned. 
-** Otherwise, if all changes in the changeset have already been visited,
-** SQLITE_DONE is returned.
-**
-** If an error occurs, an SQLite error code is returned. Possible error 
-** codes include SQLITE_CORRUPT (if the changeset buffer is corrupt) or 
-** SQLITE_NOMEM.
-*/
-SQLITE_API int tdsqlite3changeset_next(tdsqlite3_changeset_iter *pIter);
-
-/*
-** CAPI3REF: Obtain The Current Operation From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned [SQLITE_ROW]. If this
-** is not the case, this function returns [SQLITE_MISUSE].
-**
-** If argument pzTab is not NULL, then *pzTab is set to point to a
-** nul-terminated utf-8 encoded string containing the name of the table
-** affected by the current change. The buffer remains valid until either
-** tdsqlite3changeset_next() is called on the iterator or until the 
-** conflict-handler function returns. If pnCol is not NULL, then *pnCol is 
-** set to the number of columns in the table affected by the change. If
-** pbIndirect is not NULL, then *pbIndirect is set to true (1) if the change
-** is an indirect change, or false (0) otherwise. See the documentation for
-** [tdsqlite3session_indirect()] for a description of direct and indirect
-** changes. Finally, if pOp is not NULL, then *pOp is set to one of 
-** [SQLITE_INSERT], [SQLITE_DELETE] or [SQLITE_UPDATE], depending on the 
-** type of change that the iterator currently points to.
-**
-** If no error occurs, SQLITE_OK is returned. If an error does occur, an
-** SQLite error code is returned. The values of the output variables may not
-** be trusted in this case.
-*/
-SQLITE_API int tdsqlite3changeset_op(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator object */
-  const char **pzTab,             /* OUT: Pointer to table name */
-  int *pnCol,                     /* OUT: Number of columns in table */
-  int *pOp,                       /* OUT: SQLITE_INSERT, DELETE or UPDATE */
-  int *pbIndirect                 /* OUT: True for an 'indirect' change */
-);
-
-/*
-** CAPI3REF: Obtain The Primary Key Definition Of A Table
-** METHOD: tdsqlite3_changeset_iter
-**
-** For each modified table, a changeset includes the following:
-**
-** <ul>
-**   <li> The number of columns in the table, and
-**   <li> Which of those columns make up the tables PRIMARY KEY.
-** </ul>
-**
-** This function is used to find which columns comprise the PRIMARY KEY of
-** the table modified by the change that iterator pIter currently points to.
-** If successful, *pabPK is set to point to an array of nCol entries, where
-** nCol is the number of columns in the table. Elements of *pabPK are set to
-** 0x01 if the corresponding column is part of the tables primary key, or
-** 0x00 if it is not.
-**
-** If argument pnCol is not NULL, then *pnCol is set to the number of columns
-** in the table.
-**
-** If this function is called when the iterator does not point to a valid
-** entry, SQLITE_MISUSE is returned and the output variables zeroed. Otherwise,
-** SQLITE_OK is returned and the output variables populated as described
-** above.
-*/
-SQLITE_API int tdsqlite3changeset_pk(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator object */
-  unsigned char **pabPK,          /* OUT: Array of boolean - true for PK cols */
-  int *pnCol                      /* OUT: Number of entries in output array */
-);
-
-/*
-** CAPI3REF: Obtain old.* Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned SQLITE_ROW. 
-** Furthermore, it may only be called if the type of change that the iterator
-** currently points to is either [SQLITE_DELETE] or [SQLITE_UPDATE]. Otherwise,
-** this function returns [SQLITE_MISUSE] and sets *ppValue to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the vector of 
-** original row values stored as part of the UPDATE or DELETE change and
-** returns SQLITE_OK. The name of the function comes from the fact that this 
-** is similar to the "old.*" columns available to update or delete triggers.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-SQLITE_API int tdsqlite3changeset_old(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: Old value (or NULL pointer) */
-);
-
-/*
-** CAPI3REF: Obtain new.* Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned SQLITE_ROW. 
-** Furthermore, it may only be called if the type of change that the iterator
-** currently points to is either [SQLITE_UPDATE] or [SQLITE_INSERT]. Otherwise,
-** this function returns [SQLITE_MISUSE] and sets *ppValue to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the vector of 
-** new row values stored as part of the UPDATE or INSERT change and
-** returns SQLITE_OK. If the change is an UPDATE and does not include
-** a new value for the requested column, *ppValue is set to NULL and 
-** SQLITE_OK returned. The name of the function comes from the fact that 
-** this is similar to the "new.*" columns available to update or delete 
-** triggers.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-SQLITE_API int tdsqlite3changeset_new(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: New value (or NULL pointer) */
-);
-
-/*
-** CAPI3REF: Obtain Conflicting Row Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function should only be used with iterator objects passed to a
-** conflict-handler callback by [tdsqlite3changeset_apply()] with either
-** [SQLITE_CHANGESET_DATA] or [SQLITE_CHANGESET_CONFLICT]. If this function
-** is called on any other iterator, [SQLITE_MISUSE] is returned and *ppValue
-** is set to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the 
-** "conflicting row" associated with the current conflict-handler callback
-** and returns SQLITE_OK.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-SQLITE_API int tdsqlite3changeset_conflict(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: Value from conflicting row */
-);
-
-/*
-** CAPI3REF: Determine The Number Of Foreign Key Constraint Violations
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function may only be called with an iterator passed to an
-** SQLITE_CHANGESET_FOREIGN_KEY conflict handler callback. In this case
-** it sets the output variable to the total number of known foreign key
-** violations in the destination database and returns SQLITE_OK.
-**
-** In all other cases this function returns SQLITE_MISUSE.
-*/
-SQLITE_API int tdsqlite3changeset_fk_conflicts(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int *pnOut                      /* OUT: Number of FK violations */
-);
-
-
-/*
-** CAPI3REF: Finalize A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function is used to finalize an iterator allocated with
-** [tdsqlite3changeset_start()].
-**
-** This function should only be called on iterators created using the
-** [tdsqlite3changeset_start()] function. If an application calls this
-** function with an iterator passed to a conflict-handler by
-** [tdsqlite3changeset_apply()], [SQLITE_MISUSE] is immediately returned and the
-** call has no effect.
-**
-** If an error was encountered within a call to an tdsqlite3changeset_xxx()
-** function (for example an [SQLITE_CORRUPT] in [tdsqlite3changeset_next()] or an 
-** [SQLITE_NOMEM] in [tdsqlite3changeset_new()]) then an error code corresponding
-** to that error is returned by this function. Otherwise, SQLITE_OK is
-** returned. This is to allow the following pattern (pseudo-code):
-**
-** <pre>
-**   tdsqlite3changeset_start();
-**   while( SQLITE_ROW==tdsqlite3changeset_next() ){
-**     // Do something with change.
-**   }
-**   rc = tdsqlite3changeset_finalize();
-**   if( rc!=SQLITE_OK ){
-**     // An error has occurred 
-**   }
-** </pre>
-*/
-SQLITE_API int tdsqlite3changeset_finalize(tdsqlite3_changeset_iter *pIter);
-
-/*
-** CAPI3REF: Invert A Changeset
-**
-** This function is used to "invert" a changeset object. Applying an inverted
-** changeset to a database reverses the effects of applying the uninverted
-** changeset. Specifically:
-**
-** <ul>
-**   <li> Each DELETE change is changed to an INSERT, and
-**   <li> Each INSERT change is changed to a DELETE, and
-**   <li> For each UPDATE change, the old.* and new.* values are exchanged.
-** </ul>
-**
-** This function does not change the order in which changes appear within
-** the changeset. It merely reverses the sense of each individual change.
-**
-** If successful, a pointer to a buffer containing the inverted changeset
-** is stored in *ppOut, the size of the same buffer is stored in *pnOut, and
-** SQLITE_OK is returned. If an error occurs, both *pnOut and *ppOut are
-** zeroed and an SQLite error code returned.
-**
-** It is the responsibility of the caller to eventually call tdsqlite3_free()
-** on the *ppOut pointer to free the buffer allocation following a successful 
-** call to this function.
-**
-** WARNING/TODO: This function currently assumes that the input is a valid
-** changeset. If it is not, the results are undefined.
-*/
-SQLITE_API int tdsqlite3changeset_invert(
-  int nIn, const void *pIn,       /* Input changeset */
-  int *pnOut, void **ppOut        /* OUT: Inverse of input */
-);
-
-/*
-** CAPI3REF: Concatenate Two Changeset Objects
-**
-** This function is used to concatenate two changesets, A and B, into a 
-** single changeset. The result is a changeset equivalent to applying
-** changeset A followed by changeset B. 
-**
-** This function combines the two input changesets using an 
-** tdsqlite3_changegroup object. Calling it produces similar results as the
-** following code fragment:
-**
-** <pre>
-**   tdsqlite3_changegroup *pGrp;
-**   rc = tdsqlite3_changegroup_new(&pGrp);
-**   if( rc==SQLITE_OK ) rc = tdsqlite3changegroup_add(pGrp, nA, pA);
-**   if( rc==SQLITE_OK ) rc = tdsqlite3changegroup_add(pGrp, nB, pB);
-**   if( rc==SQLITE_OK ){
-**     rc = tdsqlite3changegroup_output(pGrp, pnOut, ppOut);
-**   }else{
-**     *ppOut = 0;
-**     *pnOut = 0;
-**   }
-** </pre>
-**
-** Refer to the tdsqlite3_changegroup documentation below for details.
-*/
-SQLITE_API int tdsqlite3changeset_concat(
-  int nA,                         /* Number of bytes in buffer pA */
-  void *pA,                       /* Pointer to buffer containing changeset A */
-  int nB,                         /* Number of bytes in buffer pB */
-  void *pB,                       /* Pointer to buffer containing changeset B */
-  int *pnOut,                     /* OUT: Number of bytes in output changeset */
-  void **ppOut                    /* OUT: Buffer containing output changeset */
-);
-
-
-/*
-** CAPI3REF: Changegroup Handle
-**
-** A changegroup is an object used to combine two or more 
-** [changesets] or [patchsets]
-*/
-typedef struct tdsqlite3_changegroup tdsqlite3_changegroup;
-
-/*
-** CAPI3REF: Create A New Changegroup Object
-** CONSTRUCTOR: tdsqlite3_changegroup
-**
-** An tdsqlite3_changegroup object is used to combine two or more changesets
-** (or patchsets) into a single changeset (or patchset). A single changegroup
-** object may combine changesets or patchsets, but not both. The output is
-** always in the same format as the input.
-**
-** If successful, this function returns SQLITE_OK and populates (*pp) with
-** a pointer to a new tdsqlite3_changegroup object before returning. The caller
-** should eventually free the returned object using a call to 
-** tdsqlite3changegroup_delete(). If an error occurs, an SQLite error code
-** (i.e. SQLITE_NOMEM) is returned and *pp is set to NULL.
-**
-** The usual usage pattern for an tdsqlite3_changegroup object is as follows:
-**
-** <ul>
-**   <li> It is created using a call to tdsqlite3changegroup_new().
-**
-**   <li> Zero or more changesets (or patchsets) are added to the object
-**        by calling tdsqlite3changegroup_add().
-**
-**   <li> The result of combining all input changesets together is obtained 
-**        by the application via a call to tdsqlite3changegroup_output().
-**
-**   <li> The object is deleted using a call to tdsqlite3changegroup_delete().
-** </ul>
-**
-** Any number of calls to add() and output() may be made between the calls to
-** new() and delete(), and in any order.
-**
-** As well as the regular tdsqlite3changegroup_add() and 
-** tdsqlite3changegroup_output() functions, also available are the streaming
-** versions tdsqlite3changegroup_add_strm() and tdsqlite3changegroup_output_strm().
-*/
-SQLITE_API int tdsqlite3changegroup_new(tdsqlite3_changegroup **pp);
-
-/*
-** CAPI3REF: Add A Changeset To A Changegroup
-** METHOD: tdsqlite3_changegroup
-**
-** Add all changes within the changeset (or patchset) in buffer pData (size
-** nData bytes) to the changegroup. 
-**
-** If the buffer contains a patchset, then all prior calls to this function
-** on the same changegroup object must also have specified patchsets. Or, if
-** the buffer contains a changeset, so must have the earlier calls to this
-** function. Otherwise, SQLITE_ERROR is returned and no changes are added
-** to the changegroup.
-**
-** Rows within the changeset and changegroup are identified by the values in
-** their PRIMARY KEY columns. A change in the changeset is considered to
-** apply to the same row as a change already present in the changegroup if
-** the two rows have the same primary key.
-**
-** Changes to rows that do not already appear in the changegroup are
-** simply copied into it. Or, if both the new changeset and the changegroup
-** contain changes that apply to a single row, the final contents of the
-** changegroup depends on the type of each change, as follows:
-**
-** <table border=1 style="margin-left:8ex;margin-right:8ex">
-**   <tr><th style="white-space:pre">Existing Change  </th>
-**       <th style="white-space:pre">New Change       </th>
-**       <th>Output Change
-**   <tr><td>INSERT <td>INSERT <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>INSERT <td>UPDATE <td>
-**       The INSERT change remains in the changegroup. The values in the 
-**       INSERT change are modified as if the row was inserted by the
-**       existing change and then updated according to the new change.
-**   <tr><td>INSERT <td>DELETE <td>
-**       The existing INSERT is removed from the changegroup. The DELETE is
-**       not added.
-**   <tr><td>UPDATE <td>INSERT <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>UPDATE <td>UPDATE <td>
-**       The existing UPDATE remains within the changegroup. It is amended 
-**       so that the accompanying values are as if the row was updated once 
-**       by the existing change and then again by the new change.
-**   <tr><td>UPDATE <td>DELETE <td>
-**       The existing UPDATE is replaced by the new DELETE within the
-**       changegroup.
-**   <tr><td>DELETE <td>INSERT <td>
-**       If one or more of the column values in the row inserted by the
-**       new change differ from those in the row deleted by the existing 
-**       change, the existing DELETE is replaced by an UPDATE within the
-**       changegroup. Otherwise, if the inserted row is exactly the same 
-**       as the deleted row, the existing DELETE is simply discarded.
-**   <tr><td>DELETE <td>UPDATE <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>DELETE <td>DELETE <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-** </table>
-**
-** If the new changeset contains changes to a table that is already present
-** in the changegroup, then the number of columns and the position of the
-** primary key columns for the table must be consistent. If this is not the
-** case, this function fails with SQLITE_SCHEMA. If the input changeset
-** appears to be corrupt and the corruption is detected, SQLITE_CORRUPT is
-** returned. Or, if an out-of-memory condition occurs during processing, this
-** function returns SQLITE_NOMEM. In all cases, if an error occurs the state
-** of the final contents of the changegroup is undefined.
-**
-** If no error occurs, SQLITE_OK is returned.
-*/
-SQLITE_API int tdsqlite3changegroup_add(tdsqlite3_changegroup*, int nData, void *pData);
-
-/*
-** CAPI3REF: Obtain A Composite Changeset From A Changegroup
-** METHOD: tdsqlite3_changegroup
-**
-** Obtain a buffer containing a changeset (or patchset) representing the
-** current contents of the changegroup. If the inputs to the changegroup
-** were themselves changesets, the output is a changeset. Or, if the
-** inputs were patchsets, the output is also a patchset.
-**
-** As with the output of the tdsqlite3session_changeset() and
-** tdsqlite3session_patchset() functions, all changes related to a single
-** table are grouped together in the output of this function. Tables appear
-** in the same order as for the very first changeset added to the changegroup.
-** If the second or subsequent changesets added to the changegroup contain
-** changes for tables that do not appear in the first changeset, they are
-** appended onto the end of the output changeset, again in the order in
-** which they are first encountered.
-**
-** If an error occurs, an SQLite error code is returned and the output
-** variables (*pnData) and (*ppData) are set to 0. Otherwise, SQLITE_OK
-** is returned and the output variables are set to the size of and a 
-** pointer to the output buffer, respectively. In this case it is the
-** responsibility of the caller to eventually free the buffer using a
-** call to tdsqlite3_free().
-*/
-SQLITE_API int tdsqlite3changegroup_output(
-  tdsqlite3_changegroup*,
-  int *pnData,                    /* OUT: Size of output buffer in bytes */
-  void **ppData                   /* OUT: Pointer to output buffer */
-);
-
-/*
-** CAPI3REF: Delete A Changegroup Object
-** DESTRUCTOR: tdsqlite3_changegroup
-*/
-SQLITE_API void tdsqlite3changegroup_delete(tdsqlite3_changegroup*);
-
-/*
-** CAPI3REF: Apply A Changeset To A Database
-**
-** Apply a changeset or patchset to a database. These functions attempt to
-** update the "main" database attached to handle db with the changes found in
-** the changeset passed via the second and third arguments. 
-**
-** The fourth argument (xFilter) passed to these functions is the "filter
-** callback". If it is not NULL, then for each table affected by at least one
-** change in the changeset, the filter callback is invoked with
-** the table name as the second argument, and a copy of the context pointer
-** passed as the sixth argument as the first. If the "filter callback"
-** returns zero, then no attempt is made to apply any changes to the table.
-** Otherwise, if the return value is non-zero or the xFilter argument to
-** is NULL, all changes related to the table are attempted.
-**
-** For each table that is not excluded by the filter callback, this function 
-** tests that the target database contains a compatible table. A table is 
-** considered compatible if all of the following are true:
-**
-** <ul>
-**   <li> The table has the same name as the name recorded in the 
-**        changeset, and
-**   <li> The table has at least as many columns as recorded in the 
-**        changeset, and
-**   <li> The table has primary key columns in the same position as 
-**        recorded in the changeset.
-** </ul>
-**
-** If there is no compatible table, it is not an error, but none of the
-** changes associated with the table are applied. A warning message is issued
-** via the tdsqlite3_log() mechanism with the error code SQLITE_SCHEMA. At most
-** one such warning is issued for each table in the changeset.
-**
-** For each change for which there is a compatible table, an attempt is made 
-** to modify the table contents according to the UPDATE, INSERT or DELETE 
-** change. If a change cannot be applied cleanly, the conflict handler 
-** function passed as the fifth argument to tdsqlite3changeset_apply() may be 
-** invoked. A description of exactly when the conflict handler is invoked for 
-** each type of change is below.
-**
-** Unlike the xFilter argument, xConflict may not be passed NULL. The results
-** of passing anything other than a valid function pointer as the xConflict
-** argument are undefined.
-**
-** Each time the conflict handler function is invoked, it must return one
-** of [SQLITE_CHANGESET_OMIT], [SQLITE_CHANGESET_ABORT] or 
-** [SQLITE_CHANGESET_REPLACE]. SQLITE_CHANGESET_REPLACE may only be returned
-** if the second argument passed to the conflict handler is either
-** SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT. If the conflict-handler
-** returns an illegal value, any changes already made are rolled back and
-** the call to tdsqlite3changeset_apply() returns SQLITE_MISUSE. Different 
-** actions are taken by tdsqlite3changeset_apply() depending on the value
-** returned by each invocation of the conflict-handler function. Refer to
-** the documentation for the three 
-** [SQLITE_CHANGESET_OMIT|available return values] for details.
-**
-** <dl>
-** <dt>DELETE Changes<dd>
-**   For each DELETE change, the function checks if the target database 
-**   contains a row with the same primary key value (or values) as the 
-**   original row values stored in the changeset. If it does, and the values 
-**   stored in all non-primary key columns also match the values stored in 
-**   the changeset the row is deleted from the target database.
-**
-**   If a row with matching primary key values is found, but one or more of
-**   the non-primary key fields contains a value different from the original
-**   row value stored in the changeset, the conflict-handler function is
-**   invoked with [SQLITE_CHANGESET_DATA] as the second argument. If the
-**   database table has more columns than are recorded in the changeset,
-**   only the values of those non-primary key fields are compared against
-**   the current database contents - any trailing database table columns
-**   are ignored.
-**
-**   If no row with matching primary key values is found in the database,
-**   the conflict-handler function is invoked with [SQLITE_CHANGESET_NOTFOUND]
-**   passed as the second argument.
-**
-**   If the DELETE operation is attempted, but SQLite returns SQLITE_CONSTRAINT
-**   (which can only happen if a foreign key constraint is violated), the
-**   conflict-handler function is invoked with [SQLITE_CHANGESET_CONSTRAINT]
-**   passed as the second argument. This includes the case where the DELETE
-**   operation is attempted because an earlier call to the conflict handler
-**   function returned [SQLITE_CHANGESET_REPLACE].
-**
-** <dt>INSERT Changes<dd>
-**   For each INSERT change, an attempt is made to insert the new row into
-**   the database. If the changeset row contains fewer fields than the
-**   database table, the trailing fields are populated with their default
-**   values.
-**
-**   If the attempt to insert the row fails because the database already 
-**   contains a row with the same primary key values, the conflict handler
-**   function is invoked with the second argument set to 
-**   [SQLITE_CHANGESET_CONFLICT].
-**
-**   If the attempt to insert the row fails because of some other constraint
-**   violation (e.g. NOT NULL or UNIQUE), the conflict handler function is 
-**   invoked with the second argument set to [SQLITE_CHANGESET_CONSTRAINT].
-**   This includes the case where the INSERT operation is re-attempted because 
-**   an earlier call to the conflict handler function returned 
-**   [SQLITE_CHANGESET_REPLACE].
-**
-** <dt>UPDATE Changes<dd>
-**   For each UPDATE change, the function checks if the target database 
-**   contains a row with the same primary key value (or values) as the 
-**   original row values stored in the changeset. If it does, and the values 
-**   stored in all modified non-primary key columns also match the values
-**   stored in the changeset the row is updated within the target database.
-**
-**   If a row with matching primary key values is found, but one or more of
-**   the modified non-primary key fields contains a value different from an
-**   original row value stored in the changeset, the conflict-handler function
-**   is invoked with [SQLITE_CHANGESET_DATA] as the second argument. Since
-**   UPDATE changes only contain values for non-primary key fields that are
-**   to be modified, only those fields need to match the original values to
-**   avoid the SQLITE_CHANGESET_DATA conflict-handler callback.
-**
-**   If no row with matching primary key values is found in the database,
-**   the conflict-handler function is invoked with [SQLITE_CHANGESET_NOTFOUND]
-**   passed as the second argument.
-**
-**   If the UPDATE operation is attempted, but SQLite returns 
-**   SQLITE_CONSTRAINT, the conflict-handler function is invoked with 
-**   [SQLITE_CHANGESET_CONSTRAINT] passed as the second argument.
-**   This includes the case where the UPDATE operation is attempted after 
-**   an earlier call to the conflict handler function returned
-**   [SQLITE_CHANGESET_REPLACE].  
-** </dl>
-**
-** It is safe to execute SQL statements, including those that write to the
-** table that the callback related to, from within the xConflict callback.
-** This can be used to further customize the application's conflict
-** resolution strategy.
-**
-** All changes made by these functions are enclosed in a savepoint transaction.
-** If any other error (aside from a constraint failure when attempting to
-** write to the target database) occurs, then the savepoint transaction is
-** rolled back, restoring the target database to its original state, and an 
-** SQLite error code returned.
-**
-** If the output parameters (ppRebase) and (pnRebase) are non-NULL and
-** the input is a changeset (not a patchset), then tdsqlite3changeset_apply_v2()
-** may set (*ppRebase) to point to a "rebase" that may be used with the 
-** tdsqlite3_rebaser APIs buffer before returning. In this case (*pnRebase)
-** is set to the size of the buffer in bytes. It is the responsibility of the
-** caller to eventually free any such buffer using tdsqlite3_free(). The buffer
-** is only allocated and populated if one or more conflicts were encountered
-** while applying the patchset. See comments surrounding the tdsqlite3_rebaser
-** APIs for further details.
-**
-** The behavior of tdsqlite3changeset_apply_v2() and its streaming equivalent
-** may be modified by passing a combination of
-** [SQLITE_CHANGESETAPPLY_NOSAVEPOINT | supported flags] as the 9th parameter.
-**
-** Note that the tdsqlite3changeset_apply_v2() API is still <b>experimental</b>
-** and therefore subject to change.
-*/
-SQLITE_API int tdsqlite3changeset_apply(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int nChangeset,                 /* Size of changeset in bytes */
-  void *pChangeset,               /* Changeset blob */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx                      /* First argument passed to xConflict */
-);
-SQLITE_API int tdsqlite3changeset_apply_v2(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int nChangeset,                 /* Size of changeset in bytes */
-  void *pChangeset,               /* Changeset blob */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase, /* OUT: Rebase data */
-  int flags                       /* SESSION_CHANGESETAPPLY_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3changeset_apply_v2
-**
-** The following flags may passed via the 9th parameter to
-** [tdsqlite3changeset_apply_v2] and [tdsqlite3changeset_apply_v2_strm]:
-**
-** <dl>
-** <dt>SQLITE_CHANGESETAPPLY_NOSAVEPOINT <dd>
-**   Usually, the sessions module encloses all operations performed by
-**   a single call to apply_v2() or apply_v2_strm() in a [SAVEPOINT]. The
-**   SAVEPOINT is committed if the changeset or patchset is successfully
-**   applied, or rolled back if an error occurs. Specifying this flag
-**   causes the sessions module to omit this savepoint. In this case, if the
-**   caller has an open transaction or savepoint when apply_v2() is called, 
-**   it may revert the partially applied changeset by rolling it back.
-**
-** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
-**   Invert the changeset before applying it. This is equivalent to inverting
-**   a changeset using tdsqlite3changeset_invert() before applying it. It is
-**   an error to specify this flag with a patchset.
-*/
-#define SQLITE_CHANGESETAPPLY_NOSAVEPOINT   0x0001
-#define SQLITE_CHANGESETAPPLY_INVERT        0x0002
-
-/* 
-** CAPI3REF: Constants Passed To The Conflict Handler
-**
-** Values that may be passed as the second argument to a conflict-handler.
-**
-** <dl>
-** <dt>SQLITE_CHANGESET_DATA<dd>
-**   The conflict handler is invoked with CHANGESET_DATA as the second argument
-**   when processing a DELETE or UPDATE change if a row with the required
-**   PRIMARY KEY fields is present in the database, but one or more other 
-**   (non primary-key) fields modified by the update do not contain the 
-**   expected "before" values.
-** 
-**   The conflicting row, in this case, is the database row with the matching
-**   primary key.
-** 
-** <dt>SQLITE_CHANGESET_NOTFOUND<dd>
-**   The conflict handler is invoked with CHANGESET_NOTFOUND as the second
-**   argument when processing a DELETE or UPDATE change if a row with the
-**   required PRIMARY KEY fields is not present in the database.
-** 
-**   There is no conflicting row in this case. The results of invoking the
-**   tdsqlite3changeset_conflict() API are undefined.
-** 
-** <dt>SQLITE_CHANGESET_CONFLICT<dd>
-**   CHANGESET_CONFLICT is passed as the second argument to the conflict
-**   handler while processing an INSERT change if the operation would result 
-**   in duplicate primary key values.
-** 
-**   The conflicting row in this case is the database row with the matching
-**   primary key.
-**
-** <dt>SQLITE_CHANGESET_FOREIGN_KEY<dd>
-**   If foreign key handling is enabled, and applying a changeset leaves the
-**   database in a state containing foreign key violations, the conflict 
-**   handler is invoked with CHANGESET_FOREIGN_KEY as the second argument
-**   exactly once before the changeset is committed. If the conflict handler
-**   returns CHANGESET_OMIT, the changes, including those that caused the
-**   foreign key constraint violation, are committed. Or, if it returns
-**   CHANGESET_ABORT, the changeset is rolled back.
-**
-**   No current or conflicting row information is provided. The only function
-**   it is possible to call on the supplied tdsqlite3_changeset_iter handle
-**   is tdsqlite3changeset_fk_conflicts().
-** 
-** <dt>SQLITE_CHANGESET_CONSTRAINT<dd>
-**   If any other constraint violation occurs while applying a change (i.e. 
-**   a UNIQUE, CHECK or NOT NULL constraint), the conflict handler is 
-**   invoked with CHANGESET_CONSTRAINT as the second argument.
-** 
-**   There is no conflicting row in this case. The results of invoking the
-**   tdsqlite3changeset_conflict() API are undefined.
-**
-** </dl>
-*/
-#define SQLITE_CHANGESET_DATA        1
-#define SQLITE_CHANGESET_NOTFOUND    2
-#define SQLITE_CHANGESET_CONFLICT    3
-#define SQLITE_CHANGESET_CONSTRAINT  4
-#define SQLITE_CHANGESET_FOREIGN_KEY 5
-
-/* 
-** CAPI3REF: Constants Returned By The Conflict Handler
-**
-** A conflict handler callback must return one of the following three values.
-**
-** <dl>
-** <dt>SQLITE_CHANGESET_OMIT<dd>
-**   If a conflict handler returns this value no special action is taken. The
-**   change that caused the conflict is not applied. The session module 
-**   continues to the next change in the changeset.
-**
-** <dt>SQLITE_CHANGESET_REPLACE<dd>
-**   This value may only be returned if the second argument to the conflict
-**   handler was SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT. If this
-**   is not the case, any changes applied so far are rolled back and the 
-**   call to tdsqlite3changeset_apply() returns SQLITE_MISUSE.
-**
-**   If CHANGESET_REPLACE is returned by an SQLITE_CHANGESET_DATA conflict
-**   handler, then the conflicting row is either updated or deleted, depending
-**   on the type of change.
-**
-**   If CHANGESET_REPLACE is returned by an SQLITE_CHANGESET_CONFLICT conflict
-**   handler, then the conflicting row is removed from the database and a
-**   second attempt to apply the change is made. If this second attempt fails,
-**   the original row is restored to the database before continuing.
-**
-** <dt>SQLITE_CHANGESET_ABORT<dd>
-**   If this value is returned, any changes applied so far are rolled back 
-**   and the call to tdsqlite3changeset_apply() returns SQLITE_ABORT.
-** </dl>
-*/
-#define SQLITE_CHANGESET_OMIT       0
-#define SQLITE_CHANGESET_REPLACE    1
-#define SQLITE_CHANGESET_ABORT      2
-
-/* 
-** CAPI3REF: Rebasing changesets
-** EXPERIMENTAL
-**
-** Suppose there is a site hosting a database in state S0. And that
-** modifications are made that move that database to state S1 and a
-** changeset recorded (the "local" changeset). Then, a changeset based
-** on S0 is received from another site (the "remote" changeset) and 
-** applied to the database. The database is then in state 
-** (S1+"remote"), where the exact state depends on any conflict
-** resolution decisions (OMIT or REPLACE) made while applying "remote".
-** Rebasing a changeset is to update it to take those conflict 
-** resolution decisions into account, so that the same conflicts
-** do not have to be resolved elsewhere in the network. 
-**
-** For example, if both the local and remote changesets contain an
-** INSERT of the same key on "CREATE TABLE t1(a PRIMARY KEY, b)":
-**
-**   local:  INSERT INTO t1 VALUES(1, 'v1');
-**   remote: INSERT INTO t1 VALUES(1, 'v2');
-**
-** and the conflict resolution is REPLACE, then the INSERT change is
-** removed from the local changeset (it was overridden). Or, if the
-** conflict resolution was "OMIT", then the local changeset is modified
-** to instead contain:
-**
-**           UPDATE t1 SET b = 'v2' WHERE a=1;
-**
-** Changes within the local changeset are rebased as follows:
-**
-** <dl>
-** <dt>Local INSERT<dd>
-**   This may only conflict with a remote INSERT. If the conflict 
-**   resolution was OMIT, then add an UPDATE change to the rebased
-**   changeset. Or, if the conflict resolution was REPLACE, add
-**   nothing to the rebased changeset.
-**
-** <dt>Local DELETE<dd>
-**   This may conflict with a remote UPDATE or DELETE. In both cases the
-**   only possible resolution is OMIT. If the remote operation was a
-**   DELETE, then add no change to the rebased changeset. If the remote
-**   operation was an UPDATE, then the old.* fields of change are updated
-**   to reflect the new.* values in the UPDATE.
-**
-** <dt>Local UPDATE<dd>
-**   This may conflict with a remote UPDATE or DELETE. If it conflicts
-**   with a DELETE, and the conflict resolution was OMIT, then the update
-**   is changed into an INSERT. Any undefined values in the new.* record
-**   from the update change are filled in using the old.* values from
-**   the conflicting DELETE. Or, if the conflict resolution was REPLACE,
-**   the UPDATE change is simply omitted from the rebased changeset.
-**
-**   If conflict is with a remote UPDATE and the resolution is OMIT, then
-**   the old.* values are rebased using the new.* values in the remote
-**   change. Or, if the resolution is REPLACE, then the change is copied
-**   into the rebased changeset with updates to columns also updated by
-**   the conflicting remote UPDATE removed. If this means no columns would 
-**   be updated, the change is omitted.
-** </dl>
-**
-** A local change may be rebased against multiple remote changes 
-** simultaneously. If a single key is modified by multiple remote 
-** changesets, they are combined as follows before the local changeset
-** is rebased:
-**
-** <ul>
-**    <li> If there has been one or more REPLACE resolutions on a
-**         key, it is rebased according to a REPLACE.
-**
-**    <li> If there have been no REPLACE resolutions on a key, then
-**         the local changeset is rebased according to the most recent
-**         of the OMIT resolutions.
-** </ul>
-**
-** Note that conflict resolutions from multiple remote changesets are 
-** combined on a per-field basis, not per-row. This means that in the 
-** case of multiple remote UPDATE operations, some fields of a single 
-** local change may be rebased for REPLACE while others are rebased for 
-** OMIT.
-**
-** In order to rebase a local changeset, the remote changeset must first
-** be applied to the local database using tdsqlite3changeset_apply_v2() and
-** the buffer of rebase information captured. Then:
-**
-** <ol>
-**   <li> An tdsqlite3_rebaser object is created by calling 
-**        tdsqlite3rebaser_create().
-**   <li> The new object is configured with the rebase buffer obtained from
-**        tdsqlite3changeset_apply_v2() by calling tdsqlite3rebaser_configure().
-**        If the local changeset is to be rebased against multiple remote
-**        changesets, then tdsqlite3rebaser_configure() should be called
-**        multiple times, in the same order that the multiple
-**        tdsqlite3changeset_apply_v2() calls were made.
-**   <li> Each local changeset is rebased by calling tdsqlite3rebaser_rebase().
-**   <li> The tdsqlite3_rebaser object is deleted by calling
-**        tdsqlite3rebaser_delete().
-** </ol>
-*/
-typedef struct tdsqlite3_rebaser tdsqlite3_rebaser;
-
-/*
-** CAPI3REF: Create a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Allocate a new changeset rebaser object. If successful, set (*ppNew) to
-** point to the new object and return SQLITE_OK. Otherwise, if an error
-** occurs, return an SQLite error code (e.g. SQLITE_NOMEM) and set (*ppNew) 
-** to NULL. 
-*/
-SQLITE_API int tdsqlite3rebaser_create(tdsqlite3_rebaser **ppNew);
-
-/*
-** CAPI3REF: Configure a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Configure the changeset rebaser object to rebase changesets according
-** to the conflict resolutions described by buffer pRebase (size nRebase
-** bytes), which must have been obtained from a previous call to
-** tdsqlite3changeset_apply_v2().
-*/
-SQLITE_API int tdsqlite3rebaser_configure(
-  tdsqlite3_rebaser*, 
-  int nRebase, const void *pRebase
-); 
-
-/*
-** CAPI3REF: Rebase a changeset
-** EXPERIMENTAL
-**
-** Argument pIn must point to a buffer containing a changeset nIn bytes
-** in size. This function allocates and populates a buffer with a copy
-** of the changeset rebased according to the configuration of the
-** rebaser object passed as the first argument. If successful, (*ppOut)
-** is set to point to the new buffer containing the rebased changeset and 
-** (*pnOut) to its size in bytes and SQLITE_OK returned. It is the
-** responsibility of the caller to eventually free the new buffer using
-** tdsqlite3_free(). Otherwise, if an error occurs, (*ppOut) and (*pnOut)
-** are set to zero and an SQLite error code returned.
-*/
-SQLITE_API int tdsqlite3rebaser_rebase(
-  tdsqlite3_rebaser*,
-  int nIn, const void *pIn, 
-  int *pnOut, void **ppOut 
-);
-
-/*
-** CAPI3REF: Delete a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Delete the changeset rebaser object and all associated resources. There
-** should be one call to this function for each successful invocation
-** of tdsqlite3rebaser_create().
-*/
-SQLITE_API void tdsqlite3rebaser_delete(tdsqlite3_rebaser *p); 
-
-/*
-** CAPI3REF: Streaming Versions of API functions.
-**
-** The six streaming API xxx_strm() functions serve similar purposes to the 
-** corresponding non-streaming API functions:
-**
-** <table border=1 style="margin-left:8ex;margin-right:8ex">
-**   <tr><th>Streaming function<th>Non-streaming equivalent</th>
-**   <tr><td>tdsqlite3changeset_apply_strm<td>[tdsqlite3changeset_apply] 
-**   <tr><td>tdsqlite3changeset_apply_strm_v2<td>[tdsqlite3changeset_apply_v2] 
-**   <tr><td>tdsqlite3changeset_concat_strm<td>[tdsqlite3changeset_concat] 
-**   <tr><td>tdsqlite3changeset_invert_strm<td>[tdsqlite3changeset_invert] 
-**   <tr><td>tdsqlite3changeset_start_strm<td>[tdsqlite3changeset_start] 
-**   <tr><td>tdsqlite3session_changeset_strm<td>[tdsqlite3session_changeset] 
-**   <tr><td>tdsqlite3session_patchset_strm<td>[tdsqlite3session_patchset] 
-** </table>
-**
-** Non-streaming functions that accept changesets (or patchsets) as input
-** require that the entire changeset be stored in a single buffer in memory. 
-** Similarly, those that return a changeset or patchset do so by returning 
-** a pointer to a single large buffer allocated using tdsqlite3_malloc(). 
-** Normally this is convenient. However, if an application running in a 
-** low-memory environment is required to handle very large changesets, the
-** large contiguous memory allocations required can become onerous.
-**
-** In order to avoid this problem, instead of a single large buffer, input
-** is passed to a streaming API functions by way of a callback function that
-** the sessions module invokes to incrementally request input data as it is
-** required. In all cases, a pair of API function parameters such as
-**
-**  <pre>
-**  &nbsp;     int nChangeset,
-**  &nbsp;     void *pChangeset,
-**  </pre>
-**
-** Is replaced by:
-**
-**  <pre>
-**  &nbsp;     int (*xInput)(void *pIn, void *pData, int *pnData),
-**  &nbsp;     void *pIn,
-**  </pre>
-**
-** Each time the xInput callback is invoked by the sessions module, the first
-** argument passed is a copy of the supplied pIn context pointer. The second 
-** argument, pData, points to a buffer (*pnData) bytes in size. Assuming no 
-** error occurs the xInput method should copy up to (*pnData) bytes of data 
-** into the buffer and set (*pnData) to the actual number of bytes copied 
-** before returning SQLITE_OK. If the input is completely exhausted, (*pnData) 
-** should be set to zero to indicate this. Or, if an error occurs, an SQLite 
-** error code should be returned. In all cases, if an xInput callback returns
-** an error, all processing is abandoned and the streaming API function
-** returns a copy of the error code to the caller.
-**
-** In the case of tdsqlite3changeset_start_strm(), the xInput callback may be
-** invoked by the sessions module at any point during the lifetime of the
-** iterator. If such an xInput callback returns an error, the iterator enters
-** an error state, whereby all subsequent calls to iterator functions 
-** immediately fail with the same error code as returned by xInput.
-**
-** Similarly, streaming API functions that return changesets (or patchsets)
-** return them in chunks by way of a callback function instead of via a
-** pointer to a single large buffer. In this case, a pair of parameters such
-** as:
-**
-**  <pre>
-**  &nbsp;     int *pnChangeset,
-**  &nbsp;     void **ppChangeset,
-**  </pre>
-**
-** Is replaced by:
-**
-**  <pre>
-**  &nbsp;     int (*xOutput)(void *pOut, const void *pData, int nData),
-**  &nbsp;     void *pOut
-**  </pre>
-**
-** The xOutput callback is invoked zero or more times to return data to
-** the application. The first parameter passed to each call is a copy of the
-** pOut pointer supplied by the application. The second parameter, pData,
-** points to a buffer nData bytes in size containing the chunk of output
-** data being returned. If the xOutput callback successfully processes the
-** supplied data, it should return SQLITE_OK to indicate success. Otherwise,
-** it should return some other SQLite error code. In this case processing
-** is immediately abandoned and the streaming API function returns a copy
-** of the xOutput error code to the application.
-**
-** The sessions module never invokes an xOutput callback with the third 
-** parameter set to a value less than or equal to zero. Other than this,
-** no guarantees are made as to the size of the chunks of data returned.
-*/
-SQLITE_API int tdsqlite3changeset_apply_strm(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
-  void *pIn,                                          /* First arg for xInput */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx                      /* First argument passed to xConflict */
-);
-SQLITE_API int tdsqlite3changeset_apply_v2_strm(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
-  void *pIn,                                          /* First arg for xInput */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase,
-  int flags
-);
-SQLITE_API int tdsqlite3changeset_concat_strm(
-  int (*xInputA)(void *pIn, void *pData, int *pnData),
-  void *pInA,
-  int (*xInputB)(void *pIn, void *pData, int *pnData),
-  void *pInB,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-SQLITE_API int tdsqlite3changeset_invert_strm(
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-SQLITE_API int tdsqlite3changeset_start_strm(
-  tdsqlite3_changeset_iter **pp,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn
-);
-SQLITE_API int tdsqlite3changeset_start_v2_strm(
-  tdsqlite3_changeset_iter **pp,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int flags
-);
-SQLITE_API int tdsqlite3session_changeset_strm(
-  tdsqlite3_session *pSession,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-SQLITE_API int tdsqlite3session_patchset_strm(
-  tdsqlite3_session *pSession,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-SQLITE_API int tdsqlite3changegroup_add_strm(tdsqlite3_changegroup*, 
-    int (*xInput)(void *pIn, void *pData, int *pnData),
-    void *pIn
-);
-SQLITE_API int tdsqlite3changegroup_output_strm(tdsqlite3_changegroup*,
-    int (*xOutput)(void *pOut, const void *pData, int nData), 
-    void *pOut
-);
-SQLITE_API int tdsqlite3rebaser_rebase_strm(
-  tdsqlite3_rebaser *pRebaser,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-
-/*
-** CAPI3REF: Configure global parameters
-**
-** The tdsqlite3session_config() interface is used to make global configuration
-** changes to the sessions module in order to tune it to the specific needs 
-** of the application.
-**
-** The tdsqlite3session_config() interface is not threadsafe. If it is invoked
-** while any other thread is inside any other sessions method then the
-** results are undefined. Furthermore, if it is invoked after any sessions
-** related objects have been created, the results are also undefined. 
-**
-** The first argument to the tdsqlite3session_config() function must be one
-** of the SQLITE_SESSION_CONFIG_XXX constants defined below. The 
-** interpretation of the (void*) value passed as the second parameter and
-** the effect of calling this function depends on the value of the first
-** parameter.
-**
-** <dl>
-** <dt>SQLITE_SESSION_CONFIG_STRMSIZE<dd>
-**    By default, the sessions module streaming interfaces attempt to input
-**    and output data in approximately 1 KiB chunks. This operand may be used
-**    to set and query the value of this configuration setting. The pointer
-**    passed as the second argument must point to a value of type (int).
-**    If this value is greater than 0, it is used as the new streaming data
-**    chunk size for both input and output. Before returning, the (int) value
-**    pointed to by pArg is set to the final value of the streaming interface
-**    chunk size.
-** </dl>
-**
-** This function returns SQLITE_OK if successful, or an SQLite error code
-** otherwise.
-*/
-SQLITE_API int tdsqlite3session_config(int op, void *pArg);
-
-/*
-** CAPI3REF: Values for tdsqlite3session_config().
-*/
-#define SQLITE_SESSION_CONFIG_STRMSIZE 1
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#if 0
-}
-#endif
-
-#endif  /* !defined(__SQLITESESSION_H_) && defined(SQLITE_ENABLE_SESSION) */
-
-/******** End of tdsqlite3session.h *********/
-/******** Begin file fts5.h *********/
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** Interfaces to extend FTS5. Using the interfaces defined in this file, 
-** FTS5 may be extended with:
-**
-**     * custom tokenizers, and
-**     * custom auxiliary functions.
-*/
-
-
-#ifndef _FTS5_H
-#define _FTS5_H
-
-
-#if 0
-extern "C" {
-#endif
-
-/*************************************************************************
-** CUSTOM AUXILIARY FUNCTIONS
-**
-** Virtual table implementations may overload SQL functions by implementing
-** the tdsqlite3_module.xFindFunction() method.
-*/
-
-typedef struct Fts5ExtensionApi Fts5ExtensionApi;
-typedef struct Fts5Context Fts5Context;
-typedef struct Fts5PhraseIter Fts5PhraseIter;
-
-typedef void (*fts5_extension_function)(
-  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
-  Fts5Context *pFts,              /* First arg to pass to pApi functions */
-  tdsqlite3_context *pCtx,          /* Context for returning result/error */
-  int nVal,                       /* Number of values in apVal[] array */
-  tdsqlite3_value **apVal           /* Array of trailing arguments */
-);
-
-struct Fts5PhraseIter {
-  const unsigned char *a;
-  const unsigned char *b;
-};
-
-/*
-** EXTENSION API FUNCTIONS
-**
-** xUserData(pFts):
-**   Return a copy of the context pointer the extension function was 
-**   registered with.
-**
-** xColumnTotalSize(pFts, iCol, pnToken):
-**   If parameter iCol is less than zero, set output variable *pnToken
-**   to the total number of tokens in the FTS5 table. Or, if iCol is
-**   non-negative but less than the number of columns in the table, return
-**   the total number of tokens in column iCol, considering all rows in 
-**   the FTS5 table.
-**
-**   If parameter iCol is greater than or equal to the number of columns
-**   in the table, SQLITE_RANGE is returned. Or, if an error occurs (e.g.
-**   an OOM condition or IO error), an appropriate SQLite error code is 
-**   returned.
-**
-** xColumnCount(pFts):
-**   Return the number of columns in the table.
-**
-** xColumnSize(pFts, iCol, pnToken):
-**   If parameter iCol is less than zero, set output variable *pnToken
-**   to the total number of tokens in the current row. Or, if iCol is
-**   non-negative but less than the number of columns in the table, set
-**   *pnToken to the number of tokens in column iCol of the current row.
-**
-**   If parameter iCol is greater than or equal to the number of columns
-**   in the table, SQLITE_RANGE is returned. Or, if an error occurs (e.g.
-**   an OOM condition or IO error), an appropriate SQLite error code is 
-**   returned.
-**
-**   This function may be quite inefficient if used with an FTS5 table
-**   created with the "columnsize=0" option.
-**
-** xColumnText:
-**   This function attempts to retrieve the text of column iCol of the
-**   current document. If successful, (*pz) is set to point to a buffer
-**   containing the text in utf-8 encoding, (*pn) is set to the size in bytes
-**   (not characters) of the buffer and SQLITE_OK is returned. Otherwise,
-**   if an error occurs, an SQLite error code is returned and the final values
-**   of (*pz) and (*pn) are undefined.
-**
-** xPhraseCount:
-**   Returns the number of phrases in the current query expression.
-**
-** xPhraseSize:
-**   Returns the number of tokens in phrase iPhrase of the query. Phrases
-**   are numbered starting from zero.
-**
-** xInstCount:
-**   Set *pnInst to the total number of occurrences of all phrases within
-**   the query within the current row. Return SQLITE_OK if successful, or
-**   an error code (i.e. SQLITE_NOMEM) if an error occurs.
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. If the FTS5 table is created 
-**   with either "detail=none" or "detail=column" and "content=" option 
-**   (i.e. if it is a contentless table), then this API always returns 0.
-**
-** xInst:
-**   Query for the details of phrase match iIdx within the current row.
-**   Phrase matches are numbered starting from zero, so the iIdx argument
-**   should be greater than or equal to zero and smaller than the value
-**   output by xInstCount().
-**
-**   Usually, output parameter *piPhrase is set to the phrase number, *piCol
-**   to the column in which it occurs and *piOff the token offset of the
-**   first token of the phrase. Returns SQLITE_OK if successful, or an error
-**   code (i.e. SQLITE_NOMEM) if an error occurs.
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. 
-**
-** xRowid:
-**   Returns the rowid of the current row.
-**
-** xTokenize:
-**   Tokenize text using the tokenizer belonging to the FTS5 table.
-**
-** xQueryPhrase(pFts5, iPhrase, pUserData, xCallback):
-**   This API function is used to query the FTS table for phrase iPhrase
-**   of the current query. Specifically, a query equivalent to:
-**
-**       ... FROM ftstable WHERE ftstable MATCH $p ORDER BY rowid
-**
-**   with $p set to a phrase equivalent to the phrase iPhrase of the
-**   current query is executed. Any column filter that applies to
-**   phrase iPhrase of the current query is included in $p. For each 
-**   row visited, the callback function passed as the fourth argument 
-**   is invoked. The context and API objects passed to the callback 
-**   function may be used to access the properties of each matched row.
-**   Invoking Api.xUserData() returns a copy of the pointer passed as 
-**   the third argument to pUserData.
-**
-**   If the callback function returns any value other than SQLITE_OK, the
-**   query is abandoned and the xQueryPhrase function returns immediately.
-**   If the returned value is SQLITE_DONE, xQueryPhrase returns SQLITE_OK.
-**   Otherwise, the error code is propagated upwards.
-**
-**   If the query runs to completion without incident, SQLITE_OK is returned.
-**   Or, if some error occurs before the query completes or is aborted by
-**   the callback, an SQLite error code is returned.
-**
-**
-** xSetAuxdata(pFts5, pAux, xDelete)
-**
-**   Save the pointer passed as the second argument as the extension function's 
-**   "auxiliary data". The pointer may then be retrieved by the current or any
-**   future invocation of the same fts5 extension function made as part of
-**   the same MATCH query using the xGetAuxdata() API.
-**
-**   Each extension function is allocated a single auxiliary data slot for
-**   each FTS query (MATCH expression). If the extension function is invoked 
-**   more than once for a single FTS query, then all invocations share a 
-**   single auxiliary data context.
-**
-**   If there is already an auxiliary data pointer when this function is
-**   invoked, then it is replaced by the new pointer. If an xDelete callback
-**   was specified along with the original pointer, it is invoked at this
-**   point.
-**
-**   The xDelete callback, if one is specified, is also invoked on the
-**   auxiliary data pointer after the FTS5 query has finished.
-**
-**   If an error (e.g. an OOM condition) occurs within this function,
-**   the auxiliary data is set to NULL and an error code returned. If the
-**   xDelete parameter was not NULL, it is invoked on the auxiliary data
-**   pointer before returning.
-**
-**
-** xGetAuxdata(pFts5, bClear)
-**
-**   Returns the current auxiliary data pointer for the fts5 extension 
-**   function. See the xSetAuxdata() method for details.
-**
-**   If the bClear argument is non-zero, then the auxiliary data is cleared
-**   (set to NULL) before this function returns. In this case the xDelete,
-**   if any, is not invoked.
-**
-**
-** xRowCount(pFts5, pnRow)
-**
-**   This function is used to retrieve the total number of rows in the table.
-**   In other words, the same value that would be returned by:
-**
-**        SELECT count(*) FROM ftstable;
-**
-** xPhraseFirst()
-**   This function is used, along with type Fts5PhraseIter and the xPhraseNext
-**   method, to iterate through all instances of a single query phrase within
-**   the current row. This is the same information as is accessible via the
-**   xInstCount/xInst APIs. While the xInstCount/xInst APIs are more convenient
-**   to use, this API may be faster under some circumstances. To iterate 
-**   through instances of phrase iPhrase, use the following code:
-**
-**       Fts5PhraseIter iter;
-**       int iCol, iOff;
-**       for(pApi->xPhraseFirst(pFts, iPhrase, &iter, &iCol, &iOff);
-**           iCol>=0;
-**           pApi->xPhraseNext(pFts, &iter, &iCol, &iOff)
-**       ){
-**         // An instance of phrase iPhrase at offset iOff of column iCol
-**       }
-**
-**   The Fts5PhraseIter structure is defined above. Applications should not
-**   modify this structure directly - it should only be used as shown above
-**   with the xPhraseFirst() and xPhraseNext() API methods (and by
-**   xPhraseFirstColumn() and xPhraseNextColumn() as illustrated below).
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. If the FTS5 table is created 
-**   with either "detail=none" or "detail=column" and "content=" option 
-**   (i.e. if it is a contentless table), then this API always iterates
-**   through an empty set (all calls to xPhraseFirst() set iCol to -1).
-**
-** xPhraseNext()
-**   See xPhraseFirst above.
-**
-** xPhraseFirstColumn()
-**   This function and xPhraseNextColumn() are similar to the xPhraseFirst()
-**   and xPhraseNext() APIs described above. The difference is that instead
-**   of iterating through all instances of a phrase in the current row, these
-**   APIs are used to iterate through the set of columns in the current row
-**   that contain one or more instances of a specified phrase. For example:
-**
-**       Fts5PhraseIter iter;
-**       int iCol;
-**       for(pApi->xPhraseFirstColumn(pFts, iPhrase, &iter, &iCol);
-**           iCol>=0;
-**           pApi->xPhraseNextColumn(pFts, &iter, &iCol)
-**       ){
-**         // Column iCol contains at least one instance of phrase iPhrase
-**       }
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" option. If the FTS5 table is created with either 
-**   "detail=none" "content=" option (i.e. if it is a contentless table), 
-**   then this API always iterates through an empty set (all calls to 
-**   xPhraseFirstColumn() set iCol to -1).
-**
-**   The information accessed using this API and its companion
-**   xPhraseFirstColumn() may also be obtained using xPhraseFirst/xPhraseNext
-**   (or xInst/xInstCount). The chief advantage of this API is that it is
-**   significantly more efficient than those alternatives when used with
-**   "detail=column" tables.  
-**
-** xPhraseNextColumn()
-**   See xPhraseFirstColumn above.
-*/
-struct Fts5ExtensionApi {
-  int iVersion;                   /* Currently always set to 3 */
-
-  void *(*xUserData)(Fts5Context*);
-
-  int (*xColumnCount)(Fts5Context*);
-  int (*xRowCount)(Fts5Context*, tdsqlite3_int64 *pnRow);
-  int (*xColumnTotalSize)(Fts5Context*, int iCol, tdsqlite3_int64 *pnToken);
-
-  int (*xTokenize)(Fts5Context*, 
-    const char *pText, int nText, /* Text to tokenize */
-    void *pCtx,                   /* Context passed to xToken() */
-    int (*xToken)(void*, int, const char*, int, int, int)       /* Callback */
-  );
-
-  int (*xPhraseCount)(Fts5Context*);
-  int (*xPhraseSize)(Fts5Context*, int iPhrase);
-
-  int (*xInstCount)(Fts5Context*, int *pnInst);
-  int (*xInst)(Fts5Context*, int iIdx, int *piPhrase, int *piCol, int *piOff);
-
-  tdsqlite3_int64 (*xRowid)(Fts5Context*);
-  int (*xColumnText)(Fts5Context*, int iCol, const char **pz, int *pn);
-  int (*xColumnSize)(Fts5Context*, int iCol, int *pnToken);
-
-  int (*xQueryPhrase)(Fts5Context*, int iPhrase, void *pUserData,
-    int(*)(const Fts5ExtensionApi*,Fts5Context*,void*)
-  );
-  int (*xSetAuxdata)(Fts5Context*, void *pAux, void(*xDelete)(void*));
-  void *(*xGetAuxdata)(Fts5Context*, int bClear);
-
-  int (*xPhraseFirst)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*, int*);
-  void (*xPhraseNext)(Fts5Context*, Fts5PhraseIter*, int *piCol, int *piOff);
-
-  int (*xPhraseFirstColumn)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*);
-  void (*xPhraseNextColumn)(Fts5Context*, Fts5PhraseIter*, int *piCol);
-};
-
-/* 
-** CUSTOM AUXILIARY FUNCTIONS
-*************************************************************************/
-
-/*************************************************************************
-** CUSTOM TOKENIZERS
-**
-** Applications may also register custom tokenizer types. A tokenizer 
-** is registered by providing fts5 with a populated instance of the 
-** following structure. All structure methods must be defined, setting
-** any member of the fts5_tokenizer struct to NULL leads to undefined
-** behaviour. The structure methods are expected to function as follows:
-**
-** xCreate:
-**   This function is used to allocate and initialize a tokenizer instance.
-**   A tokenizer instance is required to actually tokenize text.
-**
-**   The first argument passed to this function is a copy of the (void*)
-**   pointer provided by the application when the fts5_tokenizer object
-**   was registered with FTS5 (the third argument to xCreateTokenizer()). 
-**   The second and third arguments are an array of nul-terminated strings
-**   containing the tokenizer arguments, if any, specified following the
-**   tokenizer name as part of the CREATE VIRTUAL TABLE statement used
-**   to create the FTS5 table.
-**
-**   The final argument is an output variable. If successful, (*ppOut) 
-**   should be set to point to the new tokenizer handle and SQLITE_OK
-**   returned. If an error occurs, some value other than SQLITE_OK should
-**   be returned. In this case, fts5 assumes that the final value of *ppOut 
-**   is undefined.
-**
-** xDelete:
-**   This function is invoked to delete a tokenizer handle previously
-**   allocated using xCreate(). Fts5 guarantees that this function will
-**   be invoked exactly once for each successful call to xCreate().
-**
-** xTokenize:
-**   This function is expected to tokenize the nText byte string indicated 
-**   by argument pText. pText may or may not be nul-terminated. The first
-**   argument passed to this function is a pointer to an Fts5Tokenizer object
-**   returned by an earlier call to xCreate().
-**
-**   The second argument indicates the reason that FTS5 is requesting
-**   tokenization of the supplied text. This is always one of the following
-**   four values:
-**
-**   <ul><li> <b>FTS5_TOKENIZE_DOCUMENT</b> - A document is being inserted into
-**            or removed from the FTS table. The tokenizer is being invoked to
-**            determine the set of tokens to add to (or delete from) the
-**            FTS index.
-**
-**       <li> <b>FTS5_TOKENIZE_QUERY</b> - A MATCH query is being executed 
-**            against the FTS index. The tokenizer is being called to tokenize 
-**            a bareword or quoted string specified as part of the query.
-**
-**       <li> <b>(FTS5_TOKENIZE_QUERY | FTS5_TOKENIZE_PREFIX)</b> - Same as
-**            FTS5_TOKENIZE_QUERY, except that the bareword or quoted string is
-**            followed by a "*" character, indicating that the last token
-**            returned by the tokenizer will be treated as a token prefix.
-**
-**       <li> <b>FTS5_TOKENIZE_AUX</b> - The tokenizer is being invoked to 
-**            satisfy an fts5_api.xTokenize() request made by an auxiliary
-**            function. Or an fts5_api.xColumnSize() request made by the same
-**            on a columnsize=0 database.  
-**   </ul>
-**
-**   For each token in the input string, the supplied callback xToken() must
-**   be invoked. The first argument to it should be a copy of the pointer
-**   passed as the second argument to xTokenize(). The third and fourth
-**   arguments are a pointer to a buffer containing the token text, and the
-**   size of the token in bytes. The 4th and 5th arguments are the byte offsets
-**   of the first byte of and first byte immediately following the text from
-**   which the token is derived within the input.
-**
-**   The second argument passed to the xToken() callback ("tflags") should
-**   normally be set to 0. The exception is if the tokenizer supports 
-**   synonyms. In this case see the discussion below for details.
-**
-**   FTS5 assumes the xToken() callback is invoked for each token in the 
-**   order that they occur within the input text.
-**
-**   If an xToken() callback returns any value other than SQLITE_OK, then
-**   the tokenization should be abandoned and the xTokenize() method should
-**   immediately return a copy of the xToken() return value. Or, if the
-**   input buffer is exhausted, xTokenize() should return SQLITE_OK. Finally,
-**   if an error occurs with the xTokenize() implementation itself, it
-**   may abandon the tokenization and return any error code other than
-**   SQLITE_OK or SQLITE_DONE.
-**
-** SYNONYM SUPPORT
-**
-**   Custom tokenizers may also support synonyms. Consider a case in which a
-**   user wishes to query for a phrase such as "first place". Using the 
-**   built-in tokenizers, the FTS5 query 'first + place' will match instances
-**   of "first place" within the document set, but not alternative forms
-**   such as "1st place". In some applications, it would be better to match
-**   all instances of "first place" or "1st place" regardless of which form
-**   the user specified in the MATCH query text.
-**
-**   There are several ways to approach this in FTS5:
-**
-**   <ol><li> By mapping all synonyms to a single token. In this case, using
-**            the above example, this means that the tokenizer returns the
-**            same token for inputs "first" and "1st". Say that token is in
-**            fact "first", so that when the user inserts the document "I won
-**            1st place" entries are added to the index for tokens "i", "won",
-**            "first" and "place". If the user then queries for '1st + place',
-**            the tokenizer substitutes "first" for "1st" and the query works
-**            as expected.
-**
-**       <li> By querying the index for all synonyms of each query term
-**            separately. In this case, when tokenizing query text, the
-**            tokenizer may provide multiple synonyms for a single term 
-**            within the document. FTS5 then queries the index for each 
-**            synonym individually. For example, faced with the query:
-**
-**   <codeblock>
-**     ... MATCH 'first place'</codeblock>
-**
-**            the tokenizer offers both "1st" and "first" as synonyms for the
-**            first token in the MATCH query and FTS5 effectively runs a query 
-**            similar to:
-**
-**   <codeblock>
-**     ... MATCH '(first OR 1st) place'</codeblock>
-**
-**            except that, for the purposes of auxiliary functions, the query
-**            still appears to contain just two phrases - "(first OR 1st)" 
-**            being treated as a single phrase.
-**
-**       <li> By adding multiple synonyms for a single term to the FTS index.
-**            Using this method, when tokenizing document text, the tokenizer
-**            provides multiple synonyms for each token. So that when a 
-**            document such as "I won first place" is tokenized, entries are
-**            added to the FTS index for "i", "won", "first", "1st" and
-**            "place".
-**
-**            This way, even if the tokenizer does not provide synonyms
-**            when tokenizing query text (it should not - to do so would be
-**            inefficient), it doesn't matter if the user queries for 
-**            'first + place' or '1st + place', as there are entries in the
-**            FTS index corresponding to both forms of the first token.
-**   </ol>
-**
-**   Whether it is parsing document or query text, any call to xToken that
-**   specifies a <i>tflags</i> argument with the FTS5_TOKEN_COLOCATED bit
-**   is considered to supply a synonym for the previous token. For example,
-**   when parsing the document "I won first place", a tokenizer that supports
-**   synonyms would call xToken() 5 times, as follows:
-**
-**   <codeblock>
-**       xToken(pCtx, 0, "i",                      1,  0,  1);
-**       xToken(pCtx, 0, "won",                    3,  2,  5);
-**       xToken(pCtx, 0, "first",                  5,  6, 11);
-**       xToken(pCtx, FTS5_TOKEN_COLOCATED, "1st", 3,  6, 11);
-**       xToken(pCtx, 0, "place",                  5, 12, 17);
-**</codeblock>
-**
-**   It is an error to specify the FTS5_TOKEN_COLOCATED flag the first time
-**   xToken() is called. Multiple synonyms may be specified for a single token
-**   by making multiple calls to xToken(FTS5_TOKEN_COLOCATED) in sequence. 
-**   There is no limit to the number of synonyms that may be provided for a
-**   single token.
-**
-**   In many cases, method (1) above is the best approach. It does not add 
-**   extra data to the FTS index or require FTS5 to query for multiple terms,
-**   so it is efficient in terms of disk space and query speed. However, it
-**   does not support prefix queries very well. If, as suggested above, the
-**   token "first" is substituted for "1st" by the tokenizer, then the query:
-**
-**   <codeblock>
-**     ... MATCH '1s*'</codeblock>
-**
-**   will not match documents that contain the token "1st" (as the tokenizer
-**   will probably not map "1s" to any prefix of "first").
-**
-**   For full prefix support, method (3) may be preferred. In this case, 
-**   because the index contains entries for both "first" and "1st", prefix
-**   queries such as 'fi*' or '1s*' will match correctly. However, because
-**   extra entries are added to the FTS index, this method uses more space
-**   within the database.
-**
-**   Method (2) offers a midpoint between (1) and (3). Using this method,
-**   a query such as '1s*' will match documents that contain the literal 
-**   token "1st", but not "first" (assuming the tokenizer is not able to
-**   provide synonyms for prefixes). However, a non-prefix query like '1st'
-**   will match against "1st" and "first". This method does not require
-**   extra disk space, as no extra entries are added to the FTS index. 
-**   On the other hand, it may require more CPU cycles to run MATCH queries,
-**   as separate queries of the FTS index are required for each synonym.
-**
-**   When using methods (2) or (3), it is important that the tokenizer only
-**   provide synonyms when tokenizing document text (method (2)) or query
-**   text (method (3)), not both. Doing so will not cause any errors, but is
-**   inefficient.
-*/
-typedef struct Fts5Tokenizer Fts5Tokenizer;
-typedef struct fts5_tokenizer fts5_tokenizer;
-struct fts5_tokenizer {
-  int (*xCreate)(void*, const char **azArg, int nArg, Fts5Tokenizer **ppOut);
-  void (*xDelete)(Fts5Tokenizer*);
-  int (*xTokenize)(Fts5Tokenizer*, 
-      void *pCtx,
-      int flags,            /* Mask of FTS5_TOKENIZE_* flags */
-      const char *pText, int nText, 
-      int (*xToken)(
-        void *pCtx,         /* Copy of 2nd argument to xTokenize() */
-        int tflags,         /* Mask of FTS5_TOKEN_* flags */
-        const char *pToken, /* Pointer to buffer containing token */
-        int nToken,         /* Size of token in bytes */
-        int iStart,         /* Byte offset of token within input text */
-        int iEnd            /* Byte offset of end of token within input text */
-      )
-  );
-};
-
-/* Flags that may be passed as the third argument to xTokenize() */
-#define FTS5_TOKENIZE_QUERY     0x0001
-#define FTS5_TOKENIZE_PREFIX    0x0002
-#define FTS5_TOKENIZE_DOCUMENT  0x0004
-#define FTS5_TOKENIZE_AUX       0x0008
-
-/* Flags that may be passed by the tokenizer implementation back to FTS5
-** as the third argument to the supplied xToken callback. */
-#define FTS5_TOKEN_COLOCATED    0x0001      /* Same position as prev. token */
-
-/*
-** END OF CUSTOM TOKENIZERS
-*************************************************************************/
-
-/*************************************************************************
-** FTS5 EXTENSION REGISTRATION API
-*/
-typedef struct fts5_api fts5_api;
-struct fts5_api {
-  int iVersion;                   /* Currently always set to 2 */
-
-  /* Create a new tokenizer */
-  int (*xCreateTokenizer)(
-    fts5_api *pApi,
-    const char *zName,
-    void *pContext,
-    fts5_tokenizer *pTokenizer,
-    void (*xDestroy)(void*)
-  );
-
-  /* Find an existing tokenizer */
-  int (*xFindTokenizer)(
-    fts5_api *pApi,
-    const char *zName,
-    void **ppContext,
-    fts5_tokenizer *pTokenizer
-  );
-
-  /* Create a new auxiliary function */
-  int (*xCreateFunction)(
-    fts5_api *pApi,
-    const char *zName,
-    void *pContext,
-    fts5_extension_function xFunction,
-    void (*xDestroy)(void*)
-  );
-};
-
-/*
-** END OF REGISTRATION API
-*************************************************************************/
-
-#if 0
-}  /* end of the 'extern "C"' block */
-#endif
-
-#endif /* _FTS5_H */
-
-/******** End of fts5.h *********/
-
-/************** End of sqlite3.h *********************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-
-/*
-** Include the configuration header output by 'configure' if we're using the
-** autoconf-based build
-*/
-#if defined(_HAVE_SQLITE_CONFIG_H) && !defined(SQLITECONFIG_H)
-/* #include "config.h" */
-#define SQLITECONFIG_H 1
-#endif
-
-/************** Include sqliteLimit.h in the middle of sqliteInt.h ***********/
-/************** Begin file sqliteLimit.h *************************************/
-/*
-** 2007 May 7
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** 
-** This file defines various limits of what SQLite can process.
-*/
-
-/*
-** The maximum length of a TEXT or BLOB in bytes.   This also
-** limits the size of a row in a table or index.
-**
-** The hard limit is the ability of a 32-bit signed integer
-** to count the size: 2^31-1 or 2147483647.
-*/
-#ifndef SQLITE_MAX_LENGTH
-# define SQLITE_MAX_LENGTH 1000000000
-#endif
-
-/*
-** This is the maximum number of
-**
-**    * Columns in a table
-**    * Columns in an index
-**    * Columns in a view
-**    * Terms in the SET clause of an UPDATE statement
-**    * Terms in the result set of a SELECT statement
-**    * Terms in the GROUP BY or ORDER BY clauses of a SELECT statement.
-**    * Terms in the VALUES clause of an INSERT statement
-**
-** The hard upper limit here is 32676.  Most database people will
-** tell you that in a well-normalized database, you usually should
-** not have more than a dozen or so columns in any table.  And if
-** that is the case, there is no point in having more than a few
-** dozen values in any of the other situations described above.
-*/
-#ifndef SQLITE_MAX_COLUMN
-# define SQLITE_MAX_COLUMN 2000
-#endif
-
-/*
-** The maximum length of a single SQL statement in bytes.
-**
-** It used to be the case that setting this value to zero would
-** turn the limit off.  That is no longer true.  It is not possible
-** to turn this limit off.
-*/
-#ifndef SQLITE_MAX_SQL_LENGTH
-# define SQLITE_MAX_SQL_LENGTH 1000000000
-#endif
-
-/*
-** The maximum depth of an expression tree. This is limited to 
-** some extent by SQLITE_MAX_SQL_LENGTH. But sometime you might 
-** want to place more severe limits on the complexity of an 
-** expression.
-**
-** A value of 0 used to mean that the limit was not enforced.
-** But that is no longer true.  The limit is now strictly enforced
-** at all times.
-*/
-#ifndef SQLITE_MAX_EXPR_DEPTH
-# define SQLITE_MAX_EXPR_DEPTH 1000
-#endif
-
-/*
-** The maximum number of terms in a compound SELECT statement.
-** The code generator for compound SELECT statements does one
-** level of recursion for each term.  A stack overflow can result
-** if the number of terms is too large.  In practice, most SQL
-** never has more than 3 or 4 terms.  Use a value of 0 to disable
-** any limit on the number of terms in a compount SELECT.
-*/
-#ifndef SQLITE_MAX_COMPOUND_SELECT
-# define SQLITE_MAX_COMPOUND_SELECT 500
-#endif
-
-/*
-** The maximum number of opcodes in a VDBE program.
-** Not currently enforced.
-*/
-#ifndef SQLITE_MAX_VDBE_OP
-# define SQLITE_MAX_VDBE_OP 250000000
-#endif
-
-/*
-** The maximum number of arguments to an SQL function.
-*/
-#ifndef SQLITE_MAX_FUNCTION_ARG
-# define SQLITE_MAX_FUNCTION_ARG 127
-#endif
-
-/*
-** The suggested maximum number of in-memory pages to use for
-** the main database table and for temporary tables.
-**
-** IMPLEMENTATION-OF: R-30185-15359 The default suggested cache size is -2000,
-** which means the cache size is limited to 2048000 bytes of memory.
-** IMPLEMENTATION-OF: R-48205-43578 The default suggested cache size can be
-** altered using the SQLITE_DEFAULT_CACHE_SIZE compile-time options.
-*/
-#ifndef SQLITE_DEFAULT_CACHE_SIZE
-# define SQLITE_DEFAULT_CACHE_SIZE  -2000
-#endif
-
-/*
-** The default number of frames to accumulate in the log file before
-** checkpointing the database in WAL mode.
-*/
-#ifndef SQLITE_DEFAULT_WAL_AUTOCHECKPOINT
-# define SQLITE_DEFAULT_WAL_AUTOCHECKPOINT  1000
-#endif
-
-/*
-** The maximum number of attached databases.  This must be between 0
-** and 125.  The upper bound of 125 is because the attached databases are
-** counted using a signed 8-bit integer which has a maximum value of 127
-** and we have to allow 2 extra counts for the "main" and "temp" databases.
-*/
-#ifndef SQLITE_MAX_ATTACHED
-# define SQLITE_MAX_ATTACHED 10
-#endif
-
-
-/*
-** The maximum value of a ?nnn wildcard that the parser will accept.
-*/
-#ifndef SQLITE_MAX_VARIABLE_NUMBER
-# define SQLITE_MAX_VARIABLE_NUMBER 999
-#endif
-
-/* Maximum page size.  The upper bound on this value is 65536.  This a limit
-** imposed by the use of 16-bit offsets within each page.
-**
-** Earlier versions of SQLite allowed the user to change this value at
-** compile time. This is no longer permitted, on the grounds that it creates
-** a library that is technically incompatible with an SQLite library 
-** compiled with a different limit. If a process operating on a database 
-** with a page-size of 65536 bytes crashes, then an instance of SQLite 
-** compiled with the default page-size limit will not be able to rollback 
-** the aborted transaction. This could lead to database corruption.
-*/
-#ifdef SQLITE_MAX_PAGE_SIZE
-# undef SQLITE_MAX_PAGE_SIZE
-#endif
-#define SQLITE_MAX_PAGE_SIZE 65536
-
-
-/*
-** The default size of a database page.
-*/
-#ifndef SQLITE_DEFAULT_PAGE_SIZE
-# define SQLITE_DEFAULT_PAGE_SIZE 4096
-#endif
-#if SQLITE_DEFAULT_PAGE_SIZE>SQLITE_MAX_PAGE_SIZE
-# undef SQLITE_DEFAULT_PAGE_SIZE
-# define SQLITE_DEFAULT_PAGE_SIZE SQLITE_MAX_PAGE_SIZE
-#endif
-
-/*
-** Ordinarily, if no value is explicitly provided, SQLite creates databases
-** with page size SQLITE_DEFAULT_PAGE_SIZE. However, based on certain
-** device characteristics (sector-size and atomic write() support),
-** SQLite may choose a larger value. This constant is the maximum value
-** SQLite will choose on its own.
-*/
-#ifndef SQLITE_MAX_DEFAULT_PAGE_SIZE
-# define SQLITE_MAX_DEFAULT_PAGE_SIZE 8192
-#endif
-#if SQLITE_MAX_DEFAULT_PAGE_SIZE>SQLITE_MAX_PAGE_SIZE
-# undef SQLITE_MAX_DEFAULT_PAGE_SIZE
-# define SQLITE_MAX_DEFAULT_PAGE_SIZE SQLITE_MAX_PAGE_SIZE
-#endif
-
-
-/*
-** Maximum number of pages in one database file.
-**
-** This is really just the default value for the max_page_count pragma.
-** This value can be lowered (or raised) at run-time using that the
-** max_page_count macro.
-*/
-#ifndef SQLITE_MAX_PAGE_COUNT
-# define SQLITE_MAX_PAGE_COUNT 1073741823
-#endif
-
-/*
-** Maximum length (in bytes) of the pattern in a LIKE or GLOB
-** operator.
-*/
-#ifndef SQLITE_MAX_LIKE_PATTERN_LENGTH
-# define SQLITE_MAX_LIKE_PATTERN_LENGTH 50000
-#endif
-
-/*
-** Maximum depth of recursion for triggers.
-**
-** A value of 1 means that a trigger program will not be able to itself
-** fire any triggers. A value of 0 means that no trigger programs at all 
-** may be executed.
-*/
-#ifndef SQLITE_MAX_TRIGGER_DEPTH
-# define SQLITE_MAX_TRIGGER_DEPTH 1000
-#endif
-
-/************** End of sqliteLimit.h *****************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-
-/* Disable nuisance warnings on Borland compilers */
-#if defined(__BORLANDC__)
-#pragma warn -rch /* unreachable code */
-#pragma warn -ccc /* Condition is always true or false */
-#pragma warn -aus /* Assigned value is never used */
-#pragma warn -csu /* Comparing signed and unsigned */
-#pragma warn -spa /* Suspicious pointer arithmetic */
-#endif
-
-/*
-** Include standard header files as necessary
-*/
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
-#endif
-#ifdef HAVE_INTTYPES_H
-#include <inttypes.h>
-#endif
-
-/*
-** The following macros are used to cast pointers to integers and
-** integers to pointers.  The way you do this varies from one compiler
-** to the next, so we have developed the following set of #if statements
-** to generate appropriate macros for a wide range of compilers.
-**
-** The correct "ANSI" way to do this is to use the intptr_t type.
-** Unfortunately, that typedef is not available on all compilers, or
-** if it is available, it requires an #include of specific headers
-** that vary from one machine to the next.
-**
-** Ticket #3860:  The llvm-gcc-4.2 compiler from Apple chokes on
-** the ((void*)&((char*)0)[X]) construct.  But MSVC chokes on ((void*)(X)).
-** So we have to define the macros in different ways depending on the
-** compiler.
-*/
-#if defined(HAVE_STDINT_H)   /* Use this case if we have ANSI headers */
-# define SQLITE_INT_TO_PTR(X)  ((void*)(intptr_t)(X))
-# define SQLITE_PTR_TO_INT(X)  ((int)(intptr_t)(X))
-#elif defined(__PTRDIFF_TYPE__)  /* This case should work for GCC */
-# define SQLITE_INT_TO_PTR(X)  ((void*)(__PTRDIFF_TYPE__)(X))
-# define SQLITE_PTR_TO_INT(X)  ((int)(__PTRDIFF_TYPE__)(X))
-#elif !defined(__GNUC__)       /* Works for compilers other than LLVM */
-# define SQLITE_INT_TO_PTR(X)  ((void*)&((char*)0)[X])
-# define SQLITE_PTR_TO_INT(X)  ((int)(((char*)X)-(char*)0))
-#else                          /* Generates a warning - but it always works */
-# define SQLITE_INT_TO_PTR(X)  ((void*)(X))
-# define SQLITE_PTR_TO_INT(X)  ((int)(X))
-#endif
-
-/*
-** A macro to hint to the compiler that a function should not be
-** inlined.
-*/
-#if defined(__GNUC__)
-#  define SQLITE_NOINLINE  __attribute__((noinline))
-#elif defined(_MSC_VER) && _MSC_VER>=1310
-#  define SQLITE_NOINLINE  __declspec(noinline)
-#else
-#  define SQLITE_NOINLINE
-#endif
-
-/*
-** Make sure that the compiler intrinsics we desire are enabled when
-** compiling with an appropriate version of MSVC unless prevented by
-** the SQLITE_DISABLE_INTRINSIC define.
-*/
-#if !defined(SQLITE_DISABLE_INTRINSIC)
-#  if defined(_MSC_VER) && _MSC_VER>=1400
-#    if !defined(_WIN32_WCE)
-#      include <intrin.h>
-#      pragma intrinsic(_byteswap_ushort)
-#      pragma intrinsic(_byteswap_ulong)
-#      pragma intrinsic(_byteswap_uint64)
-#      pragma intrinsic(_ReadWriteBarrier)
-#    else
-#      include <cmnintrin.h>
-#    endif
-#  endif
-#endif
-
-/*
-** The SQLITE_THREADSAFE macro must be defined as 0, 1, or 2.
-** 0 means mutexes are permanently disable and the library is never
-** threadsafe.  1 means the library is serialized which is the highest
-** level of threadsafety.  2 means the library is multithreaded - multiple
-** threads can use SQLite as long as no two threads try to use the same
-** database connection at the same time.
-**
-** Older versions of SQLite used an optional THREADSAFE macro.
-** We support that for legacy.
-**
-** To ensure that the correct value of "THREADSAFE" is reported when querying
-** for compile-time options at runtime (e.g. "PRAGMA compile_options"), this
-** logic is partially replicated in ctime.c. If it is updated here, it should
-** also be updated there.
-*/
-#if !defined(SQLITE_THREADSAFE)
-# if defined(THREADSAFE)
-#   define SQLITE_THREADSAFE THREADSAFE
-# else
-#   define SQLITE_THREADSAFE 1 /* IMP: R-07272-22309 */
-# endif
-#endif
-
-/*
-** Powersafe overwrite is on by default.  But can be turned off using
-** the -DSQLITE_POWERSAFE_OVERWRITE=0 command-line option.
-*/
-#ifndef SQLITE_POWERSAFE_OVERWRITE
-# define SQLITE_POWERSAFE_OVERWRITE 1
-#endif
-
-/*
-** EVIDENCE-OF: R-25715-37072 Memory allocation statistics are enabled by
-** default unless SQLite is compiled with SQLITE_DEFAULT_MEMSTATUS=0 in
-** which case memory allocation statistics are disabled by default.
-*/
-#if !defined(SQLITE_DEFAULT_MEMSTATUS)
-# define SQLITE_DEFAULT_MEMSTATUS 1
-#endif
-
-/*
-** Exactly one of the following macros must be defined in order to
-** specify which memory allocation subsystem to use.
-**
-**     SQLITE_SYSTEM_MALLOC          // Use normal system malloc()
-**     SQLITE_WIN32_MALLOC           // Use Win32 native heap API
-**     SQLITE_ZERO_MALLOC            // Use a stub allocator that always fails
-**     SQLITE_MEMDEBUG               // Debugging version of system malloc()
-**
-** On Windows, if the SQLITE_WIN32_MALLOC_VALIDATE macro is defined and the
-** assert() macro is enabled, each call into the Win32 native heap subsystem
-** will cause HeapValidate to be called.  If heap validation should fail, an
-** assertion will be triggered.
-**
-** If none of the above are defined, then set SQLITE_SYSTEM_MALLOC as
-** the default.
-*/
-#if defined(SQLITE_SYSTEM_MALLOC) \
-  + defined(SQLITE_WIN32_MALLOC) \
-  + defined(SQLITE_ZERO_MALLOC) \
-  + defined(SQLITE_MEMDEBUG)>1
-# error "Two or more of the following compile-time configuration options\
- are defined but at most one is allowed:\
- SQLITE_SYSTEM_MALLOC, SQLITE_WIN32_MALLOC, SQLITE_MEMDEBUG,\
- SQLITE_ZERO_MALLOC"
-#endif
-#if defined(SQLITE_SYSTEM_MALLOC) \
-  + defined(SQLITE_WIN32_MALLOC) \
-  + defined(SQLITE_ZERO_MALLOC) \
-  + defined(SQLITE_MEMDEBUG)==0
-# define SQLITE_SYSTEM_MALLOC 1
-#endif
-
-/*
-** If SQLITE_MALLOC_SOFT_LIMIT is not zero, then try to keep the
-** sizes of memory allocations below this value where possible.
-*/
-#if !defined(SQLITE_MALLOC_SOFT_LIMIT)
-# define SQLITE_MALLOC_SOFT_LIMIT 1024
-#endif
-
-/*
-** We need to define _XOPEN_SOURCE as follows in order to enable
-** recursive mutexes on most Unix systems and fchmod() on OpenBSD.
-** But _XOPEN_SOURCE define causes problems for Mac OS X, so omit
-** it.
-*/
-#if !defined(_XOPEN_SOURCE) && !defined(__DARWIN__) && !defined(__APPLE__)
-#  define _XOPEN_SOURCE 600
-#endif
-
-/*
-** NDEBUG and SQLITE_DEBUG are opposites.  It should always be true that
-** defined(NDEBUG)==!defined(SQLITE_DEBUG).  If this is not currently true,
-** make it true by defining or undefining NDEBUG.
-**
-** Setting NDEBUG makes the code smaller and faster by disabling the
-** assert() statements in the code.  So we want the default action
-** to be for NDEBUG to be set and NDEBUG to be undefined only if SQLITE_DEBUG
-** is set.  Thus NDEBUG becomes an opt-in rather than an opt-out
-** feature.
-*/
-#if !defined(NDEBUG) && !defined(SQLITE_DEBUG)
-# define NDEBUG 1
-#endif
-#if defined(NDEBUG) && defined(SQLITE_DEBUG)
-# undef NDEBUG
-#endif
-
-/*
-** Enable SQLITE_ENABLE_EXPLAIN_COMMENTS if SQLITE_DEBUG is turned on.
-*/
-#if !defined(SQLITE_ENABLE_EXPLAIN_COMMENTS) && defined(SQLITE_DEBUG)
-# define SQLITE_ENABLE_EXPLAIN_COMMENTS 1
-#endif
-
-/*
-** The testcase() macro is used to aid in coverage testing.  When
-** doing coverage testing, the condition inside the argument to
-** testcase() must be evaluated both true and false in order to
-** get full branch coverage.  The testcase() macro is inserted
-** to help ensure adequate test coverage in places where simple
-** condition/decision coverage is inadequate.  For example, testcase()
-** can be used to make sure boundary values are tested.  For
-** bitmask tests, testcase() can be used to make sure each bit
-** is significant and used at least once.  On switch statements
-** where multiple cases go to the same block of code, testcase()
-** can insure that all cases are evaluated.
-**
-*/
-#ifdef SQLITE_COVERAGE_TEST
-SQLITE_PRIVATE   void tdsqlite3Coverage(int);
-# define testcase(X)  if( X ){ tdsqlite3Coverage(__LINE__); }
-#else
-# define testcase(X)
-#endif
-
-/*
-** The TESTONLY macro is used to enclose variable declarations or
-** other bits of code that are needed to support the arguments
-** within testcase() and assert() macros.
-*/
-#if !defined(NDEBUG) || defined(SQLITE_COVERAGE_TEST)
-# define TESTONLY(X)  X
-#else
-# define TESTONLY(X)
-#endif
-
-/*
-** Sometimes we need a small amount of code such as a variable initialization
-** to setup for a later assert() statement.  We do not want this code to
-** appear when assert() is disabled.  The following macro is therefore
-** used to contain that setup code.  The "VVA" acronym stands for
-** "Verification, Validation, and Accreditation".  In other words, the
-** code within VVA_ONLY() will only run during verification processes.
-*/
-#ifndef NDEBUG
-# define VVA_ONLY(X)  X
-#else
-# define VVA_ONLY(X)
-#endif
-
-/*
-** The ALWAYS and NEVER macros surround boolean expressions which
-** are intended to always be true or false, respectively.  Such
-** expressions could be omitted from the code completely.  But they
-** are included in a few cases in order to enhance the resilience
-** of SQLite to unexpected behavior - to make the code "self-healing"
-** or "ductile" rather than being "brittle" and crashing at the first
-** hint of unplanned behavior.
-**
-** In other words, ALWAYS and NEVER are added for defensive code.
-**
-** When doing coverage testing ALWAYS and NEVER are hard-coded to
-** be true and false so that the unreachable code they specify will
-** not be counted as untested code.
-*/
-#if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST)
-# define ALWAYS(X)      (1)
-# define NEVER(X)       (0)
-#elif !defined(NDEBUG)
-# define ALWAYS(X)      ((X)?1:(assert(0),0))
-# define NEVER(X)       ((X)?(assert(0),1):0)
-#else
-# define ALWAYS(X)      (X)
-# define NEVER(X)       (X)
-#endif
-
-/*
-** The harmless(X) macro indicates that expression X is usually false
-** but can be true without causing any problems, but we don't know of
-** any way to cause X to be true.
-**
-** In debugging and testing builds, this macro will abort if X is ever
-** true.  In this way, developers are alerted to a possible test case
-** that causes X to be true.  If a harmless macro ever fails, that is
-** an opportunity to change the macro into a testcase() and add a new
-** test case to the test suite.
-**
-** For normal production builds, harmless(X) is a no-op, since it does
-** not matter whether expression X is true or false.
-*/
-#ifdef SQLITE_DEBUG
-# define harmless(X)  assert(!(X));
-#else
-# define harmless(X)
-#endif
-
-/*
-** Some conditionals are optimizations only.  In other words, if the
-** conditionals are replaced with a constant 1 (true) or 0 (false) then
-** the correct answer is still obtained, though perhaps not as quickly.
-**
-** The following macros mark these optimizations conditionals.
-*/
-#if defined(SQLITE_MUTATION_TEST)
-# define OK_IF_ALWAYS_TRUE(X)  (1)
-# define OK_IF_ALWAYS_FALSE(X) (0)
-#else
-# define OK_IF_ALWAYS_TRUE(X)  (X)
-# define OK_IF_ALWAYS_FALSE(X) (X)
-#endif
-
-/*
-** Some malloc failures are only possible if SQLITE_TEST_REALLOC_STRESS is
-** defined.  We need to defend against those failures when testing with
-** SQLITE_TEST_REALLOC_STRESS, but we don't want the unreachable branches
-** during a normal build.  The following macro can be used to disable tests
-** that are always false except when SQLITE_TEST_REALLOC_STRESS is set.
-*/
-#if defined(SQLITE_TEST_REALLOC_STRESS)
-# define ONLY_IF_REALLOC_STRESS(X)  (X)
-#elif !defined(NDEBUG)
-# define ONLY_IF_REALLOC_STRESS(X)  ((X)?(assert(0),1):0)
-#else
-# define ONLY_IF_REALLOC_STRESS(X)  (0)
-#endif
-
-/*
-** Declarations used for tracing the operating system interfaces.
-*/
-#if defined(SQLITE_FORCE_OS_TRACE) || defined(SQLITE_TEST) || \
-    (defined(SQLITE_DEBUG) && SQLITE_OS_WIN)
-  extern int tdsqlite3OSTrace;
-# define OSTRACE(X)          if( tdsqlite3OSTrace ) tdsqlite3DebugPrintf X
-# define SQLITE_HAVE_OS_TRACE
-#else
-# define OSTRACE(X)
-# undef  SQLITE_HAVE_OS_TRACE
-#endif
-
-/*
-** Is the tdsqlite3ErrName() function needed in the build?  Currently,
-** it is needed by "mutex_w32.c" (when debugging), "os_win.c" (when
-** OSTRACE is enabled), and by several "test*.c" files (which are
-** compiled using SQLITE_TEST).
-*/
-#if defined(SQLITE_HAVE_OS_TRACE) || defined(SQLITE_TEST) || \
-    (defined(SQLITE_DEBUG) && SQLITE_OS_WIN)
-# define SQLITE_NEED_ERR_NAME
-#else
-# undef  SQLITE_NEED_ERR_NAME
-#endif
-
-/*
-** SQLITE_ENABLE_EXPLAIN_COMMENTS is incompatible with SQLITE_OMIT_EXPLAIN
-*/
-#ifdef SQLITE_OMIT_EXPLAIN
-# undef SQLITE_ENABLE_EXPLAIN_COMMENTS
-#endif
-
-/*
-** Return true (non-zero) if the input is an integer that is too large
-** to fit in 32-bits.  This macro is used inside of various testcase()
-** macros to verify that we have tested SQLite for large-file support.
-*/
-#define IS_BIG_INT(X)  (((X)&~(i64)0xffffffff)!=0)
-
-/*
-** The macro unlikely() is a hint that surrounds a boolean
-** expression that is usually false.  Macro likely() surrounds
-** a boolean expression that is usually true.  These hints could,
-** in theory, be used by the compiler to generate better code, but
-** currently they are just comments for human readers.
-*/
-#define likely(X)    (X)
-#define unlikely(X)  (X)
-
-/************** Include hash.h in the middle of sqliteInt.h ******************/
-/************** Begin file hash.h ********************************************/
-/*
-** 2001 September 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This is the header file for the generic hash-table implementation
-** used in SQLite.
-*/
-#ifndef SQLITE_HASH_H
-#define SQLITE_HASH_H
-
-/* Forward declarations of structures. */
-typedef struct Hash Hash;
-typedef struct HashElem HashElem;
-
-/* A complete hash table is an instance of the following structure.
-** The internals of this structure are intended to be opaque -- client
-** code should not attempt to access or modify the fields of this structure
-** directly.  Change this structure only by using the routines below.
-** However, some of the "procedures" and "functions" for modifying and
-** accessing this structure are really macros, so we can't really make
-** this structure opaque.
-**
-** All elements of the hash table are on a single doubly-linked list.
-** Hash.first points to the head of this list.
-**
-** There are Hash.htsize buckets.  Each bucket points to a spot in
-** the global doubly-linked list.  The contents of the bucket are the
-** element pointed to plus the next _ht.count-1 elements in the list.
-**
-** Hash.htsize and Hash.ht may be zero.  In that case lookup is done
-** by a linear search of the global list.  For small tables, the 
-** Hash.ht table is never allocated because if there are few elements
-** in the table, it is faster to do a linear search than to manage
-** the hash table.
-*/
-struct Hash {
-  unsigned int htsize;      /* Number of buckets in the hash table */
-  unsigned int count;       /* Number of entries in this table */
-  HashElem *first;          /* The first element of the array */
-  struct _ht {              /* the hash table */
-    unsigned int count;        /* Number of entries with this hash */
-    HashElem *chain;           /* Pointer to first entry with this hash */
-  } *ht;
-};
-
-/* Each element in the hash table is an instance of the following 
-** structure.  All elements are stored on a single doubly-linked list.
-**
-** Again, this structure is intended to be opaque, but it can't really
-** be opaque because it is used by macros.
-*/
-struct HashElem {
-  HashElem *next, *prev;       /* Next and previous elements in the table */
-  void *data;                  /* Data associated with this element */
-  const char *pKey;            /* Key associated with this element */
-};
-
-/*
-** Access routines.  To delete, insert a NULL pointer.
-*/
-SQLITE_PRIVATE void tdsqlite3HashInit(Hash*);
-SQLITE_PRIVATE void *tdsqlite3HashInsert(Hash*, const char *pKey, void *pData);
-SQLITE_PRIVATE void *tdsqlite3HashFind(const Hash*, const char *pKey);
-SQLITE_PRIVATE void tdsqlite3HashClear(Hash*);
-
-/*
-** Macros for looping over all elements of a hash table.  The idiom is
-** like this:
-**
-**   Hash h;
-**   HashElem *p;
-**   ...
-**   for(p=sqliteHashFirst(&h); p; p=sqliteHashNext(p)){
-**     SomeStructure *pData = sqliteHashData(p);
-**     // do something with pData
-**   }
-*/
-#define sqliteHashFirst(H)  ((H)->first)
-#define sqliteHashNext(E)   ((E)->next)
-#define sqliteHashData(E)   ((E)->data)
-/* #define sqliteHashKey(E)    ((E)->pKey) // NOT USED */
-/* #define sqliteHashKeysize(E) ((E)->nKey)  // NOT USED */
-
-/*
-** Number of entries in a hash table
-*/
-/* #define sqliteHashCount(H)  ((H)->count) // NOT USED */
-
-#endif /* SQLITE_HASH_H */
-
-/************** End of hash.h ************************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-/************** Include parse.h in the middle of sqliteInt.h *****************/
-/************** Begin file parse.h *******************************************/
-#define TK_SEMI                             1
-#define TK_EXPLAIN                          2
-#define TK_QUERY                            3
-#define TK_PLAN                             4
-#define TK_BEGIN                            5
-#define TK_TRANSACTION                      6
-#define TK_DEFERRED                         7
-#define TK_IMMEDIATE                        8
-#define TK_EXCLUSIVE                        9
-#define TK_COMMIT                          10
-#define TK_END                             11
-#define TK_ROLLBACK                        12
-#define TK_SAVEPOINT                       13
-#define TK_RELEASE                         14
-#define TK_TO                              15
-#define TK_TABLE                           16
-#define TK_CREATE                          17
-#define TK_IF                              18
-#define TK_NOT                             19
-#define TK_EXISTS                          20
-#define TK_TEMP                            21
-#define TK_LP                              22
-#define TK_RP                              23
-#define TK_AS                              24
-#define TK_WITHOUT                         25
-#define TK_COMMA                           26
-#define TK_ABORT                           27
-#define TK_ACTION                          28
-#define TK_AFTER                           29
-#define TK_ANALYZE                         30
-#define TK_ASC                             31
-#define TK_ATTACH                          32
-#define TK_BEFORE                          33
-#define TK_BY                              34
-#define TK_CASCADE                         35
-#define TK_CAST                            36
-#define TK_CONFLICT                        37
-#define TK_DATABASE                        38
-#define TK_DESC                            39
-#define TK_DETACH                          40
-#define TK_EACH                            41
-#define TK_FAIL                            42
-#define TK_OR                              43
-#define TK_AND                             44
-#define TK_IS                              45
-#define TK_MATCH                           46
-#define TK_LIKE_KW                         47
-#define TK_BETWEEN                         48
-#define TK_IN                              49
-#define TK_ISNULL                          50
-#define TK_NOTNULL                         51
-#define TK_NE                              52
-#define TK_EQ                              53
-#define TK_GT                              54
-#define TK_LE                              55
-#define TK_LT                              56
-#define TK_GE                              57
-#define TK_ESCAPE                          58
-#define TK_ID                              59
-#define TK_COLUMNKW                        60
-#define TK_DO                              61
-#define TK_FOR                             62
-#define TK_IGNORE                          63
-#define TK_INITIALLY                       64
-#define TK_INSTEAD                         65
-#define TK_NO                              66
-#define TK_KEY                             67
-#define TK_OF                              68
-#define TK_OFFSET                          69
-#define TK_PRAGMA                          70
-#define TK_RAISE                           71
-#define TK_RECURSIVE                       72
-#define TK_REPLACE                         73
-#define TK_RESTRICT                        74
-#define TK_ROW                             75
-#define TK_ROWS                            76
-#define TK_TRIGGER                         77
-#define TK_VACUUM                          78
-#define TK_VIEW                            79
-#define TK_VIRTUAL                         80
-#define TK_WITH                            81
-#define TK_NULLS                           82
-#define TK_FIRST                           83
-#define TK_LAST                            84
-#define TK_CURRENT                         85
-#define TK_FOLLOWING                       86
-#define TK_PARTITION                       87
-#define TK_PRECEDING                       88
-#define TK_RANGE                           89
-#define TK_UNBOUNDED                       90
-#define TK_EXCLUDE                         91
-#define TK_GROUPS                          92
-#define TK_OTHERS                          93
-#define TK_TIES                            94
-#define TK_GENERATED                       95
-#define TK_ALWAYS                          96
-#define TK_REINDEX                         97
-#define TK_RENAME                          98
-#define TK_CTIME_KW                        99
-#define TK_ANY                            100
-#define TK_BITAND                         101
-#define TK_BITOR                          102
-#define TK_LSHIFT                         103
-#define TK_RSHIFT                         104
-#define TK_PLUS                           105
-#define TK_MINUS                          106
-#define TK_STAR                           107
-#define TK_SLASH                          108
-#define TK_REM                            109
-#define TK_CONCAT                         110
-#define TK_COLLATE                        111
-#define TK_BITNOT                         112
-#define TK_ON                             113
-#define TK_INDEXED                        114
-#define TK_STRING                         115
-#define TK_JOIN_KW                        116
-#define TK_CONSTRAINT                     117
-#define TK_DEFAULT                        118
-#define TK_NULL                           119
-#define TK_PRIMARY                        120
-#define TK_UNIQUE                         121
-#define TK_CHECK                          122
-#define TK_REFERENCES                     123
-#define TK_AUTOINCR                       124
-#define TK_INSERT                         125
-#define TK_DELETE                         126
-#define TK_UPDATE                         127
-#define TK_SET                            128
-#define TK_DEFERRABLE                     129
-#define TK_FOREIGN                        130
-#define TK_DROP                           131
-#define TK_UNION                          132
-#define TK_ALL                            133
-#define TK_EXCEPT                         134
-#define TK_INTERSECT                      135
-#define TK_SELECT                         136
-#define TK_VALUES                         137
-#define TK_DISTINCT                       138
-#define TK_DOT                            139
-#define TK_FROM                           140
-#define TK_JOIN                           141
-#define TK_USING                          142
-#define TK_ORDER                          143
-#define TK_GROUP                          144
-#define TK_HAVING                         145
-#define TK_LIMIT                          146
-#define TK_WHERE                          147
-#define TK_INTO                           148
-#define TK_NOTHING                        149
-#define TK_FLOAT                          150
-#define TK_BLOB                           151
-#define TK_INTEGER                        152
-#define TK_VARIABLE                       153
-#define TK_CASE                           154
-#define TK_WHEN                           155
-#define TK_THEN                           156
-#define TK_ELSE                           157
-#define TK_INDEX                          158
-#define TK_ALTER                          159
-#define TK_ADD                            160
-#define TK_WINDOW                         161
-#define TK_OVER                           162
-#define TK_FILTER                         163
-#define TK_COLUMN                         164
-#define TK_AGG_FUNCTION                   165
-#define TK_AGG_COLUMN                     166
-#define TK_TRUEFALSE                      167
-#define TK_ISNOT                          168
-#define TK_FUNCTION                       169
-#define TK_UMINUS                         170
-#define TK_UPLUS                          171
-#define TK_TRUTH                          172
-#define TK_REGISTER                       173
-#define TK_VECTOR                         174
-#define TK_SELECT_COLUMN                  175
-#define TK_IF_NULL_ROW                    176
-#define TK_ASTERISK                       177
-#define TK_SPAN                           178
-#define TK_SPACE                          179
-#define TK_ILLEGAL                        180
-
-/************** End of parse.h ***********************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <stddef.h>
-
-/*
-** Use a macro to replace memcpy() if compiled with SQLITE_INLINE_MEMCPY.
-** This allows better measurements of where memcpy() is used when running
-** cachegrind.  But this macro version of memcpy() is very slow so it
-** should not be used in production.  This is a performance measurement
-** hack only.
-*/
-#ifdef SQLITE_INLINE_MEMCPY
-# define memcpy(D,S,N) {char*xxd=(char*)(D);const char*xxs=(const char*)(S);\
-                        int xxn=(N);while(xxn-->0)*(xxd++)=*(xxs++);}
-#endif
-
-/*
-** If compiling for a processor that lacks floating point support,
-** substitute integer for floating-point
-*/
-#ifdef SQLITE_OMIT_FLOATING_POINT
-# define double sqlite_int64
-# define float sqlite_int64
-# define LONGDOUBLE_TYPE sqlite_int64
-# ifndef SQLITE_BIG_DBL
-#   define SQLITE_BIG_DBL (((tdsqlite3_int64)1)<<50)
-# endif
-# define SQLITE_OMIT_DATETIME_FUNCS 1
-# define SQLITE_OMIT_TRACE 1
-# undef SQLITE_MIXED_ENDIAN_64BIT_FLOAT
-# undef SQLITE_HAVE_ISNAN
-#endif
-#ifndef SQLITE_BIG_DBL
-# define SQLITE_BIG_DBL (1e99)
-#endif
-
-/*
-** OMIT_TEMPDB is set to 1 if SQLITE_OMIT_TEMPDB is defined, or 0
-** afterward. Having this macro allows us to cause the C compiler
-** to omit code used by TEMP tables without messy #ifndef statements.
-*/
-#ifdef SQLITE_OMIT_TEMPDB
-#define OMIT_TEMPDB 1
-#else
-#define OMIT_TEMPDB 0
-#endif
-
-/*
-** The "file format" number is an integer that is incremented whenever
-** the VDBE-level file format changes.  The following macros define the
-** the default file format for new databases and the maximum file format
-** that the library can read.
-*/
-#define SQLITE_MAX_FILE_FORMAT 4
-#ifndef SQLITE_DEFAULT_FILE_FORMAT
-# define SQLITE_DEFAULT_FILE_FORMAT 4
-#endif
-
-/*
-** Determine whether triggers are recursive by default.  This can be
-** changed at run-time using a pragma.
-*/
-#ifndef SQLITE_DEFAULT_RECURSIVE_TRIGGERS
-# define SQLITE_DEFAULT_RECURSIVE_TRIGGERS 0
-#endif
-
-/*
-** Provide a default value for SQLITE_TEMP_STORE in case it is not specified
-** on the command-line
-*/
-#ifndef SQLITE_TEMP_STORE
-# define SQLITE_TEMP_STORE 1
-#endif
-
-/*
-** If no value has been provided for SQLITE_MAX_WORKER_THREADS, or if
-** SQLITE_TEMP_STORE is set to 3 (never use temporary files), set it
-** to zero.
-*/
-#if SQLITE_TEMP_STORE==3 || SQLITE_THREADSAFE==0
-# undef SQLITE_MAX_WORKER_THREADS
-# define SQLITE_MAX_WORKER_THREADS 0
-#endif
-#ifndef SQLITE_MAX_WORKER_THREADS
-# define SQLITE_MAX_WORKER_THREADS 8
-#endif
-#ifndef SQLITE_DEFAULT_WORKER_THREADS
-# define SQLITE_DEFAULT_WORKER_THREADS 0
-#endif
-#if SQLITE_DEFAULT_WORKER_THREADS>SQLITE_MAX_WORKER_THREADS
-# undef SQLITE_MAX_WORKER_THREADS
-# define SQLITE_MAX_WORKER_THREADS SQLITE_DEFAULT_WORKER_THREADS
-#endif
-
-/*
-** The default initial allocation for the pagecache when using separate
-** pagecaches for each database connection.  A positive number is the
-** number of pages.  A negative number N translations means that a buffer
-** of -1024*N bytes is allocated and used for as many pages as it will hold.
-**
-** The default value of "20" was choosen to minimize the run-time of the
-** speedtest1 test program with options: --shrink-memory --reprepare
-*/
-#ifndef SQLITE_DEFAULT_PCACHE_INITSZ
-# define SQLITE_DEFAULT_PCACHE_INITSZ 20
-#endif
-
-/*
-** Default value for the SQLITE_CONFIG_SORTERREF_SIZE option.
-*/
-#ifndef SQLITE_DEFAULT_SORTERREF_SIZE
-# define SQLITE_DEFAULT_SORTERREF_SIZE 0x7fffffff
-#endif
-
-/*
-** The compile-time options SQLITE_MMAP_READWRITE and 
-** SQLITE_ENABLE_BATCH_ATOMIC_WRITE are not compatible with one another.
-** You must choose one or the other (or neither) but not both.
-*/
-#if defined(SQLITE_MMAP_READWRITE) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
-#error Cannot use both SQLITE_MMAP_READWRITE and SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-#endif
-
-/*
-** GCC does not define the offsetof() macro so we'll have to do it
-** ourselves.
-*/
-#ifndef offsetof
-#define offsetof(STRUCTURE,FIELD) ((int)((char*)&((STRUCTURE*)0)->FIELD))
-#endif
-
-/*
-** Macros to compute minimum and maximum of two numbers.
-*/
-#ifndef MIN
-# define MIN(A,B) ((A)<(B)?(A):(B))
-#endif
-#ifndef MAX
-# define MAX(A,B) ((A)>(B)?(A):(B))
-#endif
-
-/*
-** Swap two objects of type TYPE.
-*/
-#define SWAP(TYPE,A,B) {TYPE t=A; A=B; B=t;}
-
-/*
-** Check to see if this machine uses EBCDIC.  (Yes, believe it or
-** not, there are still machines out there that use EBCDIC.)
-*/
-#if 'A' == '\301'
-# define SQLITE_EBCDIC 1
-#else
-# define SQLITE_ASCII 1
-#endif
-
-/*
-** Integers of known sizes.  These typedefs might change for architectures
-** where the sizes very.  Preprocessor macros are available so that the
-** types can be conveniently redefined at compile-type.  Like this:
-**
-**         cc '-DUINTPTR_TYPE=long long int' ...
-*/
-#ifndef UINT32_TYPE
-# ifdef HAVE_UINT32_T
-#  define UINT32_TYPE uint32_t
-# else
-#  define UINT32_TYPE unsigned int
-# endif
-#endif
-#ifndef UINT16_TYPE
-# ifdef HAVE_UINT16_T
-#  define UINT16_TYPE uint16_t
-# else
-#  define UINT16_TYPE unsigned short int
-# endif
-#endif
-#ifndef INT16_TYPE
-# ifdef HAVE_INT16_T
-#  define INT16_TYPE int16_t
-# else
-#  define INT16_TYPE short int
-# endif
-#endif
-#ifndef UINT8_TYPE
-# ifdef HAVE_UINT8_T
-#  define UINT8_TYPE uint8_t
-# else
-#  define UINT8_TYPE unsigned char
-# endif
-#endif
-#ifndef INT8_TYPE
-# ifdef HAVE_INT8_T
-#  define INT8_TYPE int8_t
-# else
-#  define INT8_TYPE signed char
-# endif
-#endif
-#ifndef LONGDOUBLE_TYPE
-# define LONGDOUBLE_TYPE long double
-#endif
-typedef sqlite_int64 i64;          /* 8-byte signed integer */
-typedef sqlite_uint64 u64;         /* 8-byte unsigned integer */
-typedef UINT32_TYPE u32;           /* 4-byte unsigned integer */
-typedef UINT16_TYPE u16;           /* 2-byte unsigned integer */
-typedef INT16_TYPE i16;            /* 2-byte signed integer */
-typedef UINT8_TYPE u8;             /* 1-byte unsigned integer */
-typedef INT8_TYPE i8;              /* 1-byte signed integer */
-
-/*
-** SQLITE_MAX_U32 is a u64 constant that is the maximum u64 value
-** that can be stored in a u32 without loss of data.  The value
-** is 0x00000000ffffffff.  But because of quirks of some compilers, we
-** have to specify the value in the less intuitive manner shown:
-*/
-#define SQLITE_MAX_U32  ((((u64)1)<<32)-1)
-
-/*
-** The datatype used to store estimates of the number of rows in a
-** table or index.  This is an unsigned integer type.  For 99.9% of
-** the world, a 32-bit integer is sufficient.  But a 64-bit integer
-** can be used at compile-time if desired.
-*/
-#ifdef SQLITE_64BIT_STATS
- typedef u64 tRowcnt;    /* 64-bit only if requested at compile-time */
-#else
- typedef u32 tRowcnt;    /* 32-bit is the default */
-#endif
-
-/*
-** Estimated quantities used for query planning are stored as 16-bit
-** logarithms.  For quantity X, the value stored is 10*log2(X).  This
-** gives a possible range of values of approximately 1.0e986 to 1e-986.
-** But the allowed values are "grainy".  Not every value is representable.
-** For example, quantities 16 and 17 are both represented by a LogEst
-** of 40.  However, since LogEst quantities are suppose to be estimates,
-** not exact values, this imprecision is not a problem.
-**
-** "LogEst" is short for "Logarithmic Estimate".
-**
-** Examples:
-**      1 -> 0              20 -> 43          10000 -> 132
-**      2 -> 10             25 -> 46          25000 -> 146
-**      3 -> 16            100 -> 66        1000000 -> 199
-**      4 -> 20           1000 -> 99        1048576 -> 200
-**     10 -> 33           1024 -> 100    4294967296 -> 320
-**
-** The LogEst can be negative to indicate fractional values.
-** Examples:
-**
-**    0.5 -> -10           0.1 -> -33        0.0625 -> -40
-*/
-typedef INT16_TYPE LogEst;
-
-/*
-** Set the SQLITE_PTRSIZE macro to the number of bytes in a pointer
-*/
-#ifndef SQLITE_PTRSIZE
-# if defined(__SIZEOF_POINTER__)
-#   define SQLITE_PTRSIZE __SIZEOF_POINTER__
-# elif defined(i386)     || defined(__i386__)   || defined(_M_IX86) ||    \
-       defined(_M_ARM)   || defined(__arm__)    || defined(__x86)   ||    \
-      (defined(__TOS_AIX__) && !defined(__64BIT__))
-#   define SQLITE_PTRSIZE 4
-# else
-#   define SQLITE_PTRSIZE 8
-# endif
-#endif
-
-/* The uptr type is an unsigned integer large enough to hold a pointer
-*/
-#if defined(HAVE_STDINT_H)
-  typedef uintptr_t uptr;
-#elif SQLITE_PTRSIZE==4
-  typedef u32 uptr;
-#else
-  typedef u64 uptr;
-#endif
-
-/*
-** The SQLITE_WITHIN(P,S,E) macro checks to see if pointer P points to
-** something between S (inclusive) and E (exclusive).
-**
-** In other words, S is a buffer and E is a pointer to the first byte after
-** the end of buffer S.  This macro returns true if P points to something
-** contained within the buffer S.
-*/
-#define SQLITE_WITHIN(P,S,E) (((uptr)(P)>=(uptr)(S))&&((uptr)(P)<(uptr)(E)))
-
-
-/*
-** Macros to determine whether the machine is big or little endian,
-** and whether or not that determination is run-time or compile-time.
-**
-** For best performance, an attempt is made to guess at the byte-order
-** using C-preprocessor macros.  If that is unsuccessful, or if
-** -DSQLITE_BYTEORDER=0 is set, then byte-order is determined
-** at run-time.
-*/
-#ifndef SQLITE_BYTEORDER
-# if defined(i386)      || defined(__i386__)      || defined(_M_IX86) ||    \
-     defined(__x86_64)  || defined(__x86_64__)    || defined(_M_X64)  ||    \
-     defined(_M_AMD64)  || defined(_M_ARM)        || defined(__x86)   ||    \
-     defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
-#   define SQLITE_BYTEORDER    1234
-# elif defined(sparc)     || defined(__ppc__) || \
-       defined(__ARMEB__) || defined(__AARCH64EB__)
-#   define SQLITE_BYTEORDER    4321
-# else
-#   define SQLITE_BYTEORDER 0
-# endif
-#endif
-#if SQLITE_BYTEORDER==4321
-# define SQLITE_BIGENDIAN    1
-# define SQLITE_LITTLEENDIAN 0
-# define SQLITE_UTF16NATIVE  SQLITE_UTF16BE
-#elif SQLITE_BYTEORDER==1234
-# define SQLITE_BIGENDIAN    0
-# define SQLITE_LITTLEENDIAN 1
-# define SQLITE_UTF16NATIVE  SQLITE_UTF16LE
-#else
-# ifdef SQLITE_AMALGAMATION
-  const int tdsqlite3one = 1;
-# else
-  extern const int tdsqlite3one;
-# endif
-# define SQLITE_BIGENDIAN    (*(char *)(&tdsqlite3one)==0)
-# define SQLITE_LITTLEENDIAN (*(char *)(&tdsqlite3one)==1)
-# define SQLITE_UTF16NATIVE  (SQLITE_BIGENDIAN?SQLITE_UTF16BE:SQLITE_UTF16LE)
-#endif
-
-/*
-** Constants for the largest and smallest possible 64-bit signed integers.
-** These macros are designed to work correctly on both 32-bit and 64-bit
-** compilers.
-*/
-#define LARGEST_INT64  (0xffffffff|(((i64)0x7fffffff)<<32))
-#define SMALLEST_INT64 (((i64)-1) - LARGEST_INT64)
-
-/*
-** Round up a number to the next larger multiple of 8.  This is used
-** to force 8-byte alignment on 64-bit architectures.
-*/
-#define ROUND8(x)     (((x)+7)&~7)
-
-/*
-** Round down to the nearest multiple of 8
-*/
-#define ROUNDDOWN8(x) ((x)&~7)
-
-/*
-** Assert that the pointer X is aligned to an 8-byte boundary.  This
-** macro is used only within assert() to verify that the code gets
-** all alignment restrictions correct.
-**
-** Except, if SQLITE_4_BYTE_ALIGNED_MALLOC is defined, then the
-** underlying malloc() implementation might return us 4-byte aligned
-** pointers.  In that case, only verify 4-byte alignment.
-*/
-#ifdef SQLITE_4_BYTE_ALIGNED_MALLOC
-# define EIGHT_BYTE_ALIGNMENT(X)   ((((char*)(X) - (char*)0)&3)==0)
-#else
-# define EIGHT_BYTE_ALIGNMENT(X)   ((((char*)(X) - (char*)0)&7)==0)
-#endif
-
-/*
-** Disable MMAP on platforms where it is known to not work
-*/
-#if defined(__OpenBSD__) || defined(__QNXNTO__)
-# undef SQLITE_MAX_MMAP_SIZE
-# define SQLITE_MAX_MMAP_SIZE 0
-#endif
-
-/*
-** Default maximum size of memory used by memory-mapped I/O in the VFS
-*/
-#ifdef __APPLE__
-# include <TargetConditionals.h>
-#endif
-#ifndef SQLITE_MAX_MMAP_SIZE
-# if defined(__linux__) \
-  || defined(_WIN32) \
-  || (defined(__APPLE__) && defined(__MACH__)) \
-  || defined(__sun) \
-  || defined(__FreeBSD__) \
-  || defined(__DragonFly__)
-#   define SQLITE_MAX_MMAP_SIZE 0x7fff0000  /* 2147418112 */
-# else
-#   define SQLITE_MAX_MMAP_SIZE 0
-# endif
-#endif
-
-/*
-** The default MMAP_SIZE is zero on all platforms.  Or, even if a larger
-** default MMAP_SIZE is specified at compile-time, make sure that it does
-** not exceed the maximum mmap size.
-*/
-#ifndef SQLITE_DEFAULT_MMAP_SIZE
-# define SQLITE_DEFAULT_MMAP_SIZE 0
-#endif
-#if SQLITE_DEFAULT_MMAP_SIZE>SQLITE_MAX_MMAP_SIZE
-# undef SQLITE_DEFAULT_MMAP_SIZE
-# define SQLITE_DEFAULT_MMAP_SIZE SQLITE_MAX_MMAP_SIZE
-#endif
-
-/*
-** SELECTTRACE_ENABLED will be either 1 or 0 depending on whether or not
-** the Select query generator tracing logic is turned on.
-*/
-#if defined(SQLITE_ENABLE_SELECTTRACE)
-# define SELECTTRACE_ENABLED 1
-#else
-# define SELECTTRACE_ENABLED 0
-#endif
-
-/*
-** An instance of the following structure is used to store the busy-handler
-** callback for a given sqlite handle.
-**
-** The sqlite.busyHandler member of the sqlite struct contains the busy
-** callback for the database handle. Each pager opened via the sqlite
-** handle is passed a pointer to sqlite.busyHandler. The busy-handler
-** callback is currently invoked only from within pager.c.
-*/
-typedef struct BusyHandler BusyHandler;
-struct BusyHandler {
-  int (*xBusyHandler)(void *,int);  /* The busy callback */
-  void *pBusyArg;                   /* First arg to busy callback */
-  int nBusy;                        /* Incremented with each busy call */
-  u8 bExtraFileArg;                 /* Include tdsqlite3_file as callback arg */
-};
-
-/*
-** Name of the master database table.  The master database table
-** is a special table that holds the names and attributes of all
-** user tables and indices.
-*/
-#define MASTER_NAME       "sqlite_master"
-#define TEMP_MASTER_NAME  "sqlite_temp_master"
-
-/*
-** The root-page of the master database table.
-*/
-#define MASTER_ROOT       1
-
-/*
-** The name of the schema table.
-*/
-#define SCHEMA_TABLE(x)  ((!OMIT_TEMPDB)&&(x==1)?TEMP_MASTER_NAME:MASTER_NAME)
-
-/*
-** A convenience macro that returns the number of elements in
-** an array.
-*/
-#define ArraySize(X)    ((int)(sizeof(X)/sizeof(X[0])))
-
-/*
-** Determine if the argument is a power of two
-*/
-#define IsPowerOfTwo(X) (((X)&((X)-1))==0)
-
-/*
-** The following value as a destructor means to use tdsqlite3DbFree().
-** The tdsqlite3DbFree() routine requires two parameters instead of the
-** one parameter that destructors normally want.  So we have to introduce
-** this magic value that the code knows to handle differently.  Any
-** pointer will work here as long as it is distinct from SQLITE_STATIC
-** and SQLITE_TRANSIENT.
-*/
-#define SQLITE_DYNAMIC   ((tdsqlite3_destructor_type)tdsqlite3MallocSize)
-
-/*
-** When SQLITE_OMIT_WSD is defined, it means that the target platform does
-** not support Writable Static Data (WSD) such as global and static variables.
-** All variables must either be on the stack or dynamically allocated from
-** the heap.  When WSD is unsupported, the variable declarations scattered
-** throughout the SQLite code must become constants instead.  The SQLITE_WSD
-** macro is used for this purpose.  And instead of referencing the variable
-** directly, we use its constant as a key to lookup the run-time allocated
-** buffer that holds real variable.  The constant is also the initializer
-** for the run-time allocated buffer.
-**
-** In the usual case where WSD is supported, the SQLITE_WSD and GLOBAL
-** macros become no-ops and have zero performance impact.
-*/
-#ifdef SQLITE_OMIT_WSD
-  #define SQLITE_WSD const
-  #define GLOBAL(t,v) (*(t*)tdsqlite3_wsd_find((void*)&(v), sizeof(v)))
-  #define tdsqlite3GlobalConfig GLOBAL(struct Sqlite3Config, tdsqlite3Config)
-SQLITE_API int tdsqlite3_wsd_init(int N, int J);
-SQLITE_API void *tdsqlite3_wsd_find(void *K, int L);
-#else
-  #define SQLITE_WSD
-  #define GLOBAL(t,v) v
-  #define tdsqlite3GlobalConfig tdsqlite3Config
-#endif
-
-/*
-** The following macros are used to suppress compiler warnings and to
-** make it clear to human readers when a function parameter is deliberately
-** left unused within the body of a function. This usually happens when
-** a function is called via a function pointer. For example the
-** implementation of an SQL aggregate step callback may not use the
-** parameter indicating the number of arguments passed to the aggregate,
-** if it knows that this is enforced elsewhere.
-**
-** When a function parameter is not used at all within the body of a function,
-** it is generally named "NotUsed" or "NotUsed2" to make things even clearer.
-** However, these macros may also be used to suppress warnings related to
-** parameters that may or may not be used depending on compilation options.
-** For example those parameters only used in assert() statements. In these
-** cases the parameters are named as per the usual conventions.
-*/
-#define UNUSED_PARAMETER(x) (void)(x)
-#define UNUSED_PARAMETER2(x,y) UNUSED_PARAMETER(x),UNUSED_PARAMETER(y)
-
-/*
-** Forward references to structures
-*/
-typedef struct AggInfo AggInfo;
-typedef struct AuthContext AuthContext;
-typedef struct AutoincInfo AutoincInfo;
-typedef struct Bitvec Bitvec;
-typedef struct CollSeq CollSeq;
-typedef struct Column Column;
-typedef struct Db Db;
-typedef struct Schema Schema;
-typedef struct Expr Expr;
-typedef struct ExprList ExprList;
-typedef struct FKey FKey;
-typedef struct FuncDestructor FuncDestructor;
-typedef struct FuncDef FuncDef;
-typedef struct FuncDefHash FuncDefHash;
-typedef struct IdList IdList;
-typedef struct Index Index;
-typedef struct IndexSample IndexSample;
-typedef struct KeyClass KeyClass;
-typedef struct KeyInfo KeyInfo;
-typedef struct Lookaside Lookaside;
-typedef struct LookasideSlot LookasideSlot;
-typedef struct Module Module;
-typedef struct NameContext NameContext;
-typedef struct Parse Parse;
-typedef struct PreUpdate PreUpdate;
-typedef struct PrintfArguments PrintfArguments;
-typedef struct RenameToken RenameToken;
-typedef struct RowSet RowSet;
-typedef struct Savepoint Savepoint;
-typedef struct Select Select;
-typedef struct SQLiteThread SQLiteThread;
-typedef struct SelectDest SelectDest;
-typedef struct SrcList SrcList;
-typedef struct tdsqlite3_str StrAccum; /* Internal alias for tdsqlite3_str */
-typedef struct Table Table;
-typedef struct TableLock TableLock;
-typedef struct Token Token;
-typedef struct TreeView TreeView;
-typedef struct Trigger Trigger;
-typedef struct TriggerPrg TriggerPrg;
-typedef struct TriggerStep TriggerStep;
-typedef struct UnpackedRecord UnpackedRecord;
-typedef struct Upsert Upsert;
-typedef struct VTable VTable;
-typedef struct VtabCtx VtabCtx;
-typedef struct Walker Walker;
-typedef struct WhereInfo WhereInfo;
-typedef struct Window Window;
-typedef struct With With;
-
-
-/*
-** The bitmask datatype defined below is used for various optimizations.
-**
-** Changing this from a 64-bit to a 32-bit type limits the number of
-** tables in a join to 32 instead of 64.  But it also reduces the size
-** of the library by 738 bytes on ix86.
-*/
-#ifdef SQLITE_BITMASK_TYPE
-  typedef SQLITE_BITMASK_TYPE Bitmask;
-#else
-  typedef u64 Bitmask;
-#endif
-
-/*
-** The number of bits in a Bitmask.  "BMS" means "BitMask Size".
-*/
-#define BMS  ((int)(sizeof(Bitmask)*8))
-
-/*
-** A bit in a Bitmask
-*/
-#define MASKBIT(n)   (((Bitmask)1)<<(n))
-#define MASKBIT64(n) (((u64)1)<<(n))
-#define MASKBIT32(n) (((unsigned int)1)<<(n))
-#define ALLBITS      ((Bitmask)-1)
-
-/* A VList object records a mapping between parameters/variables/wildcards
-** in the SQL statement (such as $abc, @pqr, or :xyz) and the integer
-** variable number associated with that parameter.  See the format description
-** on the tdsqlite3VListAdd() routine for more information.  A VList is really
-** just an array of integers.
-*/
-typedef int VList;
-
-/*
-** Defer sourcing vdbe.h and btree.h until after the "u8" and
-** "BusyHandler" typedefs. vdbe.h also requires a few of the opaque
-** pointer types (i.e. FuncDef) defined above.
-*/
-/************** Include btree.h in the middle of sqliteInt.h *****************/
-/************** Begin file btree.h *******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the interface that the sqlite B-Tree file
-** subsystem.  See comments in the source code for a detailed description
-** of what each interface routine does.
-*/
-#ifndef SQLITE_BTREE_H
-#define SQLITE_BTREE_H
-
-/* TODO: This definition is just included so other modules compile. It
-** needs to be revisited.
-*/
-#define SQLITE_N_BTREE_META 16
-
-/*
-** If defined as non-zero, auto-vacuum is enabled by default. Otherwise
-** it must be turned on for each database using "PRAGMA auto_vacuum = 1".
-*/
-#ifndef SQLITE_DEFAULT_AUTOVACUUM
-  #define SQLITE_DEFAULT_AUTOVACUUM 0
-#endif
-
-#define BTREE_AUTOVACUUM_NONE 0        /* Do not do auto-vacuum */
-#define BTREE_AUTOVACUUM_FULL 1        /* Do full auto-vacuum */
-#define BTREE_AUTOVACUUM_INCR 2        /* Incremental vacuum */
-
-/*
-** Forward declarations of structure
-*/
-typedef struct Btree Btree;
-typedef struct BtCursor BtCursor;
-typedef struct BtShared BtShared;
-typedef struct BtreePayload BtreePayload;
-
-
-SQLITE_PRIVATE int tdsqlite3BtreeOpen(
-  tdsqlite3_vfs *pVfs,       /* VFS to use with this b-tree */
-  const char *zFilename,   /* Name of database file to open */
-  tdsqlite3 *db,             /* Associated database connection */
-  Btree **ppBtree,         /* Return open Btree* here */
-  int flags,               /* Flags */
-  int vfsFlags             /* Flags passed through to VFS open */
-);
-
-/* The flags parameter to tdsqlite3BtreeOpen can be the bitwise or of the
-** following values.
-**
-** NOTE:  These values must match the corresponding PAGER_ values in
-** pager.h.
-*/
-#define BTREE_OMIT_JOURNAL  1  /* Do not create or use a rollback journal */
-#define BTREE_MEMORY        2  /* This is an in-memory DB */
-#define BTREE_SINGLE        4  /* The file contains at most 1 b-tree */
-#define BTREE_UNORDERED     8  /* Use of a hash implementation is OK */
-
-SQLITE_PRIVATE int tdsqlite3BtreeClose(Btree*);
-SQLITE_PRIVATE int tdsqlite3BtreeSetCacheSize(Btree*,int);
-SQLITE_PRIVATE int tdsqlite3BtreeSetSpillSize(Btree*,int);
-#if SQLITE_MAX_MMAP_SIZE>0
-SQLITE_PRIVATE   int tdsqlite3BtreeSetMmapLimit(Btree*,tdsqlite3_int64);
-#endif
-SQLITE_PRIVATE int tdsqlite3BtreeSetPagerFlags(Btree*,unsigned);
-SQLITE_PRIVATE int tdsqlite3BtreeSetPageSize(Btree *p, int nPagesize, int nReserve, int eFix);
-SQLITE_PRIVATE int tdsqlite3BtreeGetPageSize(Btree*);
-SQLITE_PRIVATE int tdsqlite3BtreeMaxPageCount(Btree*,int);
-SQLITE_PRIVATE u32 tdsqlite3BtreeLastPage(Btree*);
-SQLITE_PRIVATE int tdsqlite3BtreeSecureDelete(Btree*,int);
-SQLITE_PRIVATE int tdsqlite3BtreeGetOptimalReserve(Btree*);
-SQLITE_PRIVATE int tdsqlite3BtreeGetReserveNoMutex(Btree *p);
-SQLITE_PRIVATE int tdsqlite3BtreeSetAutoVacuum(Btree *, int);
-SQLITE_PRIVATE int tdsqlite3BtreeGetAutoVacuum(Btree *);
-SQLITE_PRIVATE int tdsqlite3BtreeBeginTrans(Btree*,int,int*);
-SQLITE_PRIVATE int tdsqlite3BtreeCommitPhaseOne(Btree*, const char *zMaster);
-SQLITE_PRIVATE int tdsqlite3BtreeCommitPhaseTwo(Btree*, int);
-SQLITE_PRIVATE int tdsqlite3BtreeCommit(Btree*);
-SQLITE_PRIVATE int tdsqlite3BtreeRollback(Btree*,int,int);
-SQLITE_PRIVATE int tdsqlite3BtreeBeginStmt(Btree*,int);
-SQLITE_PRIVATE int tdsqlite3BtreeCreateTable(Btree*, int*, int flags);
-SQLITE_PRIVATE int tdsqlite3BtreeIsInTrans(Btree*);
-SQLITE_PRIVATE int tdsqlite3BtreeIsInReadTrans(Btree*);
-SQLITE_PRIVATE int tdsqlite3BtreeIsInBackup(Btree*);
-SQLITE_PRIVATE void *tdsqlite3BtreeSchema(Btree *, int, void(*)(void *));
-SQLITE_PRIVATE int tdsqlite3BtreeSchemaLocked(Btree *pBtree);
-#ifndef SQLITE_OMIT_SHARED_CACHE
-SQLITE_PRIVATE int tdsqlite3BtreeLockTable(Btree *pBtree, int iTab, u8 isWriteLock);
-#endif
-SQLITE_PRIVATE int tdsqlite3BtreeSavepoint(Btree *, int, int);
-
-SQLITE_PRIVATE const char *tdsqlite3BtreeGetFilename(Btree *);
-SQLITE_PRIVATE const char *tdsqlite3BtreeGetJournalname(Btree *);
-SQLITE_PRIVATE int tdsqlite3BtreeCopyFile(Btree *, Btree *);
-
-SQLITE_PRIVATE int tdsqlite3BtreeIncrVacuum(Btree *);
-
-/* The flags parameter to tdsqlite3BtreeCreateTable can be the bitwise OR
-** of the flags shown below.
-**
-** Every SQLite table must have either BTREE_INTKEY or BTREE_BLOBKEY set.
-** With BTREE_INTKEY, the table key is a 64-bit integer and arbitrary data
-** is stored in the leaves.  (BTREE_INTKEY is used for SQL tables.)  With
-** BTREE_BLOBKEY, the key is an arbitrary BLOB and no content is stored
-** anywhere - the key is the content.  (BTREE_BLOBKEY is used for SQL
-** indices.)
-*/
-#define BTREE_INTKEY     1    /* Table has only 64-bit signed integer keys */
-#define BTREE_BLOBKEY    2    /* Table has keys only - no data */
-
-SQLITE_PRIVATE int tdsqlite3BtreeDropTable(Btree*, int, int*);
-SQLITE_PRIVATE int tdsqlite3BtreeClearTable(Btree*, int, int*);
-SQLITE_PRIVATE int tdsqlite3BtreeClearTableOfCursor(BtCursor*);
-SQLITE_PRIVATE int tdsqlite3BtreeTripAllCursors(Btree*, int, int);
-
-SQLITE_PRIVATE void tdsqlite3BtreeGetMeta(Btree *pBtree, int idx, u32 *pValue);
-SQLITE_PRIVATE int tdsqlite3BtreeUpdateMeta(Btree*, int idx, u32 value);
-
-SQLITE_PRIVATE int tdsqlite3BtreeNewDb(Btree *p);
-
-/*
-** The second parameter to tdsqlite3BtreeGetMeta or tdsqlite3BtreeUpdateMeta
-** should be one of the following values. The integer values are assigned 
-** to constants so that the offset of the corresponding field in an
-** SQLite database header may be found using the following formula:
-**
-**   offset = 36 + (idx * 4)
-**
-** For example, the free-page-count field is located at byte offset 36 of
-** the database file header. The incr-vacuum-flag field is located at
-** byte offset 64 (== 36+4*7).
-**
-** The BTREE_DATA_VERSION value is not really a value stored in the header.
-** It is a read-only number computed by the pager.  But we merge it with
-** the header value access routines since its access pattern is the same.
-** Call it a "virtual meta value".
-*/
-#define BTREE_FREE_PAGE_COUNT     0
-#define BTREE_SCHEMA_VERSION      1
-#define BTREE_FILE_FORMAT         2
-#define BTREE_DEFAULT_CACHE_SIZE  3
-#define BTREE_LARGEST_ROOT_PAGE   4
-#define BTREE_TEXT_ENCODING       5
-#define BTREE_USER_VERSION        6
-#define BTREE_INCR_VACUUM         7
-#define BTREE_APPLICATION_ID      8
-#define BTREE_DATA_VERSION        15  /* A virtual meta-value */
-
-/*
-** Kinds of hints that can be passed into the tdsqlite3BtreeCursorHint()
-** interface.
-**
-** BTREE_HINT_RANGE  (arguments: Expr*, Mem*)
-**
-**     The first argument is an Expr* (which is guaranteed to be constant for
-**     the lifetime of the cursor) that defines constraints on which rows
-**     might be fetched with this cursor.  The Expr* tree may contain
-**     TK_REGISTER nodes that refer to values stored in the array of registers
-**     passed as the second parameter.  In other words, if Expr.op==TK_REGISTER
-**     then the value of the node is the value in Mem[pExpr.iTable].  Any
-**     TK_COLUMN node in the expression tree refers to the Expr.iColumn-th
-**     column of the b-tree of the cursor.  The Expr tree will not contain
-**     any function calls nor subqueries nor references to b-trees other than
-**     the cursor being hinted.
-**
-**     The design of the _RANGE hint is aid b-tree implementations that try
-**     to prefetch content from remote machines - to provide those
-**     implementations with limits on what needs to be prefetched and thereby
-**     reduce network bandwidth.
-**
-** Note that BTREE_HINT_FLAGS with BTREE_BULKLOAD is the only hint used by
-** standard SQLite.  The other hints are provided for extentions that use
-** the SQLite parser and code generator but substitute their own storage
-** engine.
-*/
-#define BTREE_HINT_RANGE 0       /* Range constraints on queries */
-
-/*
-** Values that may be OR'd together to form the argument to the
-** BTREE_HINT_FLAGS hint for tdsqlite3BtreeCursorHint():
-**
-** The BTREE_BULKLOAD flag is set on index cursors when the index is going
-** to be filled with content that is already in sorted order.
-**
-** The BTREE_SEEK_EQ flag is set on cursors that will get OP_SeekGE or
-** OP_SeekLE opcodes for a range search, but where the range of entries
-** selected will all have the same key.  In other words, the cursor will
-** be used only for equality key searches.
-**
-*/
-#define BTREE_BULKLOAD 0x00000001  /* Used to full index in sorted order */
-#define BTREE_SEEK_EQ  0x00000002  /* EQ seeks only - no range seeks */
-
-/* 
-** Flags passed as the third argument to tdsqlite3BtreeCursor().
-**
-** For read-only cursors the wrFlag argument is always zero. For read-write
-** cursors it may be set to either (BTREE_WRCSR|BTREE_FORDELETE) or just
-** (BTREE_WRCSR). If the BTREE_FORDELETE bit is set, then the cursor will
-** only be used by SQLite for the following:
-**
-**   * to seek to and then delete specific entries, and/or
-**
-**   * to read values that will be used to create keys that other
-**     BTREE_FORDELETE cursors will seek to and delete.
-**
-** The BTREE_FORDELETE flag is an optimization hint.  It is not used by
-** by this, the native b-tree engine of SQLite, but it is available to
-** alternative storage engines that might be substituted in place of this
-** b-tree system.  For alternative storage engines in which a delete of
-** the main table row automatically deletes corresponding index rows,
-** the FORDELETE flag hint allows those alternative storage engines to
-** skip a lot of work.  Namely:  FORDELETE cursors may treat all SEEK
-** and DELETE operations as no-ops, and any READ operation against a
-** FORDELETE cursor may return a null row: 0x01 0x00.
-*/
-#define BTREE_WRCSR     0x00000004     /* read-write cursor */
-#define BTREE_FORDELETE 0x00000008     /* Cursor is for seek/delete only */
-
-SQLITE_PRIVATE int tdsqlite3BtreeCursor(
-  Btree*,                              /* BTree containing table to open */
-  int iTable,                          /* Index of root page */
-  int wrFlag,                          /* 1 for writing.  0 for read-only */
-  struct KeyInfo*,                     /* First argument to compare function */
-  BtCursor *pCursor                    /* Space to write cursor structure */
-);
-SQLITE_PRIVATE BtCursor *tdsqlite3BtreeFakeValidCursor(void);
-SQLITE_PRIVATE int tdsqlite3BtreeCursorSize(void);
-SQLITE_PRIVATE void tdsqlite3BtreeCursorZero(BtCursor*);
-SQLITE_PRIVATE void tdsqlite3BtreeCursorHintFlags(BtCursor*, unsigned);
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-SQLITE_PRIVATE void tdsqlite3BtreeCursorHint(BtCursor*, int, ...);
-#endif
-
-SQLITE_PRIVATE int tdsqlite3BtreeCloseCursor(BtCursor*);
-SQLITE_PRIVATE int tdsqlite3BtreeMovetoUnpacked(
-  BtCursor*,
-  UnpackedRecord *pUnKey,
-  i64 intKey,
-  int bias,
-  int *pRes
-);
-SQLITE_PRIVATE int tdsqlite3BtreeCursorHasMoved(BtCursor*);
-SQLITE_PRIVATE int tdsqlite3BtreeCursorRestore(BtCursor*, int*);
-SQLITE_PRIVATE int tdsqlite3BtreeDelete(BtCursor*, u8 flags);
-
-/* Allowed flags for tdsqlite3BtreeDelete() and tdsqlite3BtreeInsert() */
-#define BTREE_SAVEPOSITION 0x02  /* Leave cursor pointing at NEXT or PREV */
-#define BTREE_AUXDELETE    0x04  /* not the primary delete operation */
-#define BTREE_APPEND       0x08  /* Insert is likely an append */
-
-/* An instance of the BtreePayload object describes the content of a single
-** entry in either an index or table btree.
-**
-** Index btrees (used for indexes and also WITHOUT ROWID tables) contain
-** an arbitrary key and no data.  These btrees have pKey,nKey set to the
-** key and the pData,nData,nZero fields are uninitialized.  The aMem,nMem
-** fields give an array of Mem objects that are a decomposition of the key.
-** The nMem field might be zero, indicating that no decomposition is available.
-**
-** Table btrees (used for rowid tables) contain an integer rowid used as
-** the key and passed in the nKey field.  The pKey field is zero.  
-** pData,nData hold the content of the new entry.  nZero extra zero bytes
-** are appended to the end of the content when constructing the entry.
-** The aMem,nMem fields are uninitialized for table btrees.
-**
-** Field usage summary:
-**
-**               Table BTrees                   Index Btrees
-**
-**   pKey        always NULL                    encoded key
-**   nKey        the ROWID                      length of pKey
-**   pData       data                           not used
-**   aMem        not used                       decomposed key value
-**   nMem        not used                       entries in aMem
-**   nData       length of pData                not used
-**   nZero       extra zeros after pData        not used
-**
-** This object is used to pass information into tdsqlite3BtreeInsert().  The
-** same information used to be passed as five separate parameters.  But placing
-** the information into this object helps to keep the interface more 
-** organized and understandable, and it also helps the resulting code to
-** run a little faster by using fewer registers for parameter passing.
-*/
-struct BtreePayload {
-  const void *pKey;       /* Key content for indexes.  NULL for tables */
-  tdsqlite3_int64 nKey;     /* Size of pKey for indexes.  PRIMARY KEY for tabs */
-  const void *pData;      /* Data for tables. */
-  tdsqlite3_value *aMem;    /* First of nMem value in the unpacked pKey */
-  u16 nMem;               /* Number of aMem[] value.  Might be zero */
-  int nData;              /* Size of pData.  0 if none. */
-  int nZero;              /* Extra zero data appended after pData,nData */
-};
-
-SQLITE_PRIVATE int tdsqlite3BtreeInsert(BtCursor*, const BtreePayload *pPayload,
-                       int flags, int seekResult);
-SQLITE_PRIVATE int tdsqlite3BtreeFirst(BtCursor*, int *pRes);
-SQLITE_PRIVATE int tdsqlite3BtreeLast(BtCursor*, int *pRes);
-SQLITE_PRIVATE int tdsqlite3BtreeNext(BtCursor*, int flags);
-SQLITE_PRIVATE int tdsqlite3BtreeEof(BtCursor*);
-SQLITE_PRIVATE int tdsqlite3BtreePrevious(BtCursor*, int flags);
-SQLITE_PRIVATE i64 tdsqlite3BtreeIntegerKey(BtCursor*);
-SQLITE_PRIVATE void tdsqlite3BtreeCursorPin(BtCursor*);
-SQLITE_PRIVATE void tdsqlite3BtreeCursorUnpin(BtCursor*);
-#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC
-SQLITE_PRIVATE i64 tdsqlite3BtreeOffset(BtCursor*);
-#endif
-SQLITE_PRIVATE int tdsqlite3BtreePayload(BtCursor*, u32 offset, u32 amt, void*);
-SQLITE_PRIVATE const void *tdsqlite3BtreePayloadFetch(BtCursor*, u32 *pAmt);
-SQLITE_PRIVATE u32 tdsqlite3BtreePayloadSize(BtCursor*);
-SQLITE_PRIVATE tdsqlite3_int64 tdsqlite3BtreeMaxRecordSize(BtCursor*);
-
-SQLITE_PRIVATE char *tdsqlite3BtreeIntegrityCheck(tdsqlite3*,Btree*,int*aRoot,int nRoot,int,int*);
-SQLITE_PRIVATE struct Pager *tdsqlite3BtreePager(Btree*);
-SQLITE_PRIVATE i64 tdsqlite3BtreeRowCountEst(BtCursor*);
-
-#ifndef SQLITE_OMIT_INCRBLOB
-SQLITE_PRIVATE int tdsqlite3BtreePayloadChecked(BtCursor*, u32 offset, u32 amt, void*);
-SQLITE_PRIVATE int tdsqlite3BtreePutData(BtCursor*, u32 offset, u32 amt, void*);
-SQLITE_PRIVATE void tdsqlite3BtreeIncrblobCursor(BtCursor *);
-#endif
-SQLITE_PRIVATE void tdsqlite3BtreeClearCursor(BtCursor *);
-SQLITE_PRIVATE int tdsqlite3BtreeSetVersion(Btree *pBt, int iVersion);
-SQLITE_PRIVATE int tdsqlite3BtreeCursorHasHint(BtCursor*, unsigned int mask);
-SQLITE_PRIVATE int tdsqlite3BtreeIsReadonly(Btree *pBt);
-SQLITE_PRIVATE int tdsqlite3HeaderSizeBtree(void);
-
-#ifndef NDEBUG
-SQLITE_PRIVATE int tdsqlite3BtreeCursorIsValid(BtCursor*);
-#endif
-SQLITE_PRIVATE int tdsqlite3BtreeCursorIsValidNN(BtCursor*);
-
-#ifndef SQLITE_OMIT_BTREECOUNT
-SQLITE_PRIVATE int tdsqlite3BtreeCount(tdsqlite3*, BtCursor*, i64*);
-#endif
-
-#ifdef SQLITE_TEST
-SQLITE_PRIVATE int tdsqlite3BtreeCursorInfo(BtCursor*, int*, int);
-SQLITE_PRIVATE void tdsqlite3BtreeCursorList(Btree*);
-#endif
-
-#ifndef SQLITE_OMIT_WAL
-SQLITE_PRIVATE   int tdsqlite3BtreeCheckpoint(Btree*, int, int *, int *);
-#endif
-
-/*
-** If we are not using shared cache, then there is no need to
-** use mutexes to access the BtShared structures.  So make the
-** Enter and Leave procedures no-ops.
-*/
-#ifndef SQLITE_OMIT_SHARED_CACHE
-SQLITE_PRIVATE   void tdsqlite3BtreeEnter(Btree*);
-SQLITE_PRIVATE   void tdsqlite3BtreeEnterAll(tdsqlite3*);
-SQLITE_PRIVATE   int tdsqlite3BtreeSharable(Btree*);
-SQLITE_PRIVATE   void tdsqlite3BtreeEnterCursor(BtCursor*);
-SQLITE_PRIVATE   int tdsqlite3BtreeConnectionCount(Btree*);
-#else
-# define tdsqlite3BtreeEnter(X) 
-# define tdsqlite3BtreeEnterAll(X)
-# define tdsqlite3BtreeSharable(X) 0
-# define tdsqlite3BtreeEnterCursor(X)
-# define tdsqlite3BtreeConnectionCount(X) 1
-#endif
-
-#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE
-SQLITE_PRIVATE   void tdsqlite3BtreeLeave(Btree*);
-SQLITE_PRIVATE   void tdsqlite3BtreeLeaveCursor(BtCursor*);
-SQLITE_PRIVATE   void tdsqlite3BtreeLeaveAll(tdsqlite3*);
-#ifndef NDEBUG
-  /* These routines are used inside assert() statements only. */
-SQLITE_PRIVATE   int tdsqlite3BtreeHoldsMutex(Btree*);
-SQLITE_PRIVATE   int tdsqlite3BtreeHoldsAllMutexes(tdsqlite3*);
-SQLITE_PRIVATE   int tdsqlite3SchemaMutexHeld(tdsqlite3*,int,Schema*);
-#endif
-#else
-
-# define tdsqlite3BtreeLeave(X)
-# define tdsqlite3BtreeLeaveCursor(X)
-# define tdsqlite3BtreeLeaveAll(X)
-
-# define tdsqlite3BtreeHoldsMutex(X) 1
-# define tdsqlite3BtreeHoldsAllMutexes(X) 1
-# define tdsqlite3SchemaMutexHeld(X,Y,Z) 1
-#endif
-
-
-#endif /* SQLITE_BTREE_H */
-
-/************** End of btree.h ***********************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-/************** Include vdbe.h in the middle of sqliteInt.h ******************/
-/************** Begin file vdbe.h ********************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Header file for the Virtual DataBase Engine (VDBE)
-**
-** This header defines the interface to the virtual database engine
-** or VDBE.  The VDBE implements an abstract machine that runs a
-** simple program to access and modify the underlying database.
-*/
-#ifndef SQLITE_VDBE_H
-#define SQLITE_VDBE_H
-/* #include <stdio.h> */
-
-/*
-** A single VDBE is an opaque structure named "Vdbe".  Only routines
-** in the source file sqliteVdbe.c are allowed to see the insides
-** of this structure.
-*/
-typedef struct Vdbe Vdbe;
-
-/*
-** The names of the following types declared in vdbeInt.h are required
-** for the VdbeOp definition.
-*/
-typedef struct tdsqlite3_value Mem;
-typedef struct SubProgram SubProgram;
-
-/*
-** A single instruction of the virtual machine has an opcode
-** and as many as three operands.  The instruction is recorded
-** as an instance of the following structure:
-*/
-struct VdbeOp {
-  u8 opcode;          /* What operation to perform */
-  signed char p4type; /* One of the P4_xxx constants for p4 */
-  u16 p5;             /* Fifth parameter is an unsigned 16-bit integer */
-  int p1;             /* First operand */
-  int p2;             /* Second parameter (often the jump destination) */
-  int p3;             /* The third parameter */
-  union p4union {     /* fourth parameter */
-    int i;                 /* Integer value if p4type==P4_INT32 */
-    void *p;               /* Generic pointer */
-    char *z;               /* Pointer to data for string (char array) types */
-    i64 *pI64;             /* Used when p4type is P4_INT64 */
-    double *pReal;         /* Used when p4type is P4_REAL */
-    FuncDef *pFunc;        /* Used when p4type is P4_FUNCDEF */
-    tdsqlite3_context *pCtx; /* Used when p4type is P4_FUNCCTX */
-    CollSeq *pColl;        /* Used when p4type is P4_COLLSEQ */
-    Mem *pMem;             /* Used when p4type is P4_MEM */
-    VTable *pVtab;         /* Used when p4type is P4_VTAB */
-    KeyInfo *pKeyInfo;     /* Used when p4type is P4_KEYINFO */
-    int *ai;               /* Used when p4type is P4_INTARRAY */
-    SubProgram *pProgram;  /* Used when p4type is P4_SUBPROGRAM */
-    Table *pTab;           /* Used when p4type is P4_TABLE */
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-    Expr *pExpr;           /* Used when p4type is P4_EXPR */
-#endif
-    int (*xAdvance)(BtCursor *, int);
-  } p4;
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-  char *zComment;          /* Comment to improve readability */
-#endif
-#ifdef VDBE_PROFILE
-  u32 cnt;                 /* Number of times this instruction was executed */
-  u64 cycles;              /* Total time spent executing this instruction */
-#endif
-#ifdef SQLITE_VDBE_COVERAGE
-  u32 iSrcLine;            /* Source-code line that generated this opcode
-                           ** with flags in the upper 8 bits */
-#endif
-};
-typedef struct VdbeOp VdbeOp;
-
-
-/*
-** A sub-routine used to implement a trigger program.
-*/
-struct SubProgram {
-  VdbeOp *aOp;                  /* Array of opcodes for sub-program */
-  int nOp;                      /* Elements in aOp[] */
-  int nMem;                     /* Number of memory cells required */
-  int nCsr;                     /* Number of cursors required */
-  u8 *aOnce;                    /* Array of OP_Once flags */
-  void *token;                  /* id that may be used to recursive triggers */
-  SubProgram *pNext;            /* Next sub-program already visited */
-};
-
-/*
-** A smaller version of VdbeOp used for the VdbeAddOpList() function because
-** it takes up less space.
-*/
-struct VdbeOpList {
-  u8 opcode;          /* What operation to perform */
-  signed char p1;     /* First operand */
-  signed char p2;     /* Second parameter (often the jump destination) */
-  signed char p3;     /* Third parameter */
-};
-typedef struct VdbeOpList VdbeOpList;
-
-/*
-** Allowed values of VdbeOp.p4type
-*/
-#define P4_NOTUSED      0   /* The P4 parameter is not used */
-#define P4_TRANSIENT    0   /* P4 is a pointer to a transient string */
-#define P4_STATIC     (-1)  /* Pointer to a static string */
-#define P4_COLLSEQ    (-2)  /* P4 is a pointer to a CollSeq structure */
-#define P4_INT32      (-3)  /* P4 is a 32-bit signed integer */
-#define P4_SUBPROGRAM (-4)  /* P4 is a pointer to a SubProgram structure */
-#define P4_ADVANCE    (-5)  /* P4 is a pointer to BtreeNext() or BtreePrev() */
-#define P4_TABLE      (-6)  /* P4 is a pointer to a Table structure */
-/* Above do not own any resources.  Must free those below */
-#define P4_FREE_IF_LE (-7)
-#define P4_DYNAMIC    (-7)  /* Pointer to memory from sqliteMalloc() */
-#define P4_FUNCDEF    (-8)  /* P4 is a pointer to a FuncDef structure */
-#define P4_KEYINFO    (-9)  /* P4 is a pointer to a KeyInfo structure */
-#define P4_EXPR       (-10) /* P4 is a pointer to an Expr tree */
-#define P4_MEM        (-11) /* P4 is a pointer to a Mem*    structure */
-#define P4_VTAB       (-12) /* P4 is a pointer to an tdsqlite3_vtab structure */
-#define P4_REAL       (-13) /* P4 is a 64-bit floating point value */
-#define P4_INT64      (-14) /* P4 is a 64-bit signed integer */
-#define P4_INTARRAY   (-15) /* P4 is a vector of 32-bit integers */
-#define P4_FUNCCTX    (-16) /* P4 is a pointer to an tdsqlite3_context object */
-#define P4_DYNBLOB    (-17) /* Pointer to memory from sqliteMalloc() */
-
-/* Error message codes for OP_Halt */
-#define P5_ConstraintNotNull 1
-#define P5_ConstraintUnique  2
-#define P5_ConstraintCheck   3
-#define P5_ConstraintFK      4
-
-/*
-** The Vdbe.aColName array contains 5n Mem structures, where n is the 
-** number of columns of data returned by the statement.
-*/
-#define COLNAME_NAME     0
-#define COLNAME_DECLTYPE 1
-#define COLNAME_DATABASE 2
-#define COLNAME_TABLE    3
-#define COLNAME_COLUMN   4
-#ifdef SQLITE_ENABLE_COLUMN_METADATA
-# define COLNAME_N        5      /* Number of COLNAME_xxx symbols */
-#else
-# ifdef SQLITE_OMIT_DECLTYPE
-#   define COLNAME_N      1      /* Store only the name */
-# else
-#   define COLNAME_N      2      /* Store the name and decltype */
-# endif
-#endif
-
-/*
-** The following macro converts a label returned by tdsqlite3VdbeMakeLabel()
-** into an index into the Parse.aLabel[] array that contains the resolved
-** address of that label.
-*/
-#define ADDR(X)  (~(X))
-
-/*
-** The makefile scans the vdbe.c source file and creates the "opcodes.h"
-** header file that defines a number for each opcode used by the VDBE.
-*/
-/************** Include opcodes.h in the middle of vdbe.h ********************/
-/************** Begin file opcodes.h *****************************************/
-/* Automatically generated.  Do not edit */
-/* See the tool/mkopcodeh.tcl script for details */
-#define OP_Savepoint       0
-#define OP_AutoCommit      1
-#define OP_Transaction     2
-#define OP_SorterNext      3 /* jump                                       */
-#define OP_Prev            4 /* jump                                       */
-#define OP_Next            5 /* jump                                       */
-#define OP_Checkpoint      6
-#define OP_JournalMode     7
-#define OP_Vacuum          8
-#define OP_VFilter         9 /* jump, synopsis: iplan=r[P3] zplan='P4'     */
-#define OP_VUpdate        10 /* synopsis: data=r[P3@P2]                    */
-#define OP_Goto           11 /* jump                                       */
-#define OP_Gosub          12 /* jump                                       */
-#define OP_InitCoroutine  13 /* jump                                       */
-#define OP_Yield          14 /* jump                                       */
-#define OP_MustBeInt      15 /* jump                                       */
-#define OP_Jump           16 /* jump                                       */
-#define OP_Once           17 /* jump                                       */
-#define OP_If             18 /* jump                                       */
-#define OP_Not            19 /* same as TK_NOT, synopsis: r[P2]= !r[P1]    */
-#define OP_IfNot          20 /* jump                                       */
-#define OP_IfNullRow      21 /* jump, synopsis: if P1.nullRow then r[P3]=NULL, goto P2 */
-#define OP_SeekLT         22 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_SeekLE         23 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_SeekGE         24 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_SeekGT         25 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_IfNotOpen      26 /* jump, synopsis: if( !csr[P1] ) goto P2     */
-#define OP_IfNoHope       27 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_NoConflict     28 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_NotFound       29 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_Found          30 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_SeekRowid      31 /* jump, synopsis: intkey=r[P3]               */
-#define OP_NotExists      32 /* jump, synopsis: intkey=r[P3]               */
-#define OP_Last           33 /* jump                                       */
-#define OP_IfSmaller      34 /* jump                                       */
-#define OP_SorterSort     35 /* jump                                       */
-#define OP_Sort           36 /* jump                                       */
-#define OP_Rewind         37 /* jump                                       */
-#define OP_IdxLE          38 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_IdxGT          39 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_IdxLT          40 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_IdxGE          41 /* jump, synopsis: key=r[P3@P4]               */
-#define OP_RowSetRead     42 /* jump, synopsis: r[P3]=rowset(P1)           */
-#define OP_Or             43 /* same as TK_OR, synopsis: r[P3]=(r[P1] || r[P2]) */
-#define OP_And            44 /* same as TK_AND, synopsis: r[P3]=(r[P1] && r[P2]) */
-#define OP_RowSetTest     45 /* jump, synopsis: if r[P3] in rowset(P1) goto P2 */
-#define OP_Program        46 /* jump                                       */
-#define OP_FkIfZero       47 /* jump, synopsis: if fkctr[P1]==0 goto P2    */
-#define OP_IfPos          48 /* jump, synopsis: if r[P1]>0 then r[P1]-=P3, goto P2 */
-#define OP_IfNotZero      49 /* jump, synopsis: if r[P1]!=0 then r[P1]--, goto P2 */
-#define OP_IsNull         50 /* jump, same as TK_ISNULL, synopsis: if r[P1]==NULL goto P2 */
-#define OP_NotNull        51 /* jump, same as TK_NOTNULL, synopsis: if r[P1]!=NULL goto P2 */
-#define OP_Ne             52 /* jump, same as TK_NE, synopsis: IF r[P3]!=r[P1] */
-#define OP_Eq             53 /* jump, same as TK_EQ, synopsis: IF r[P3]==r[P1] */
-#define OP_Gt             54 /* jump, same as TK_GT, synopsis: IF r[P3]>r[P1] */
-#define OP_Le             55 /* jump, same as TK_LE, synopsis: IF r[P3]<=r[P1] */
-#define OP_Lt             56 /* jump, same as TK_LT, synopsis: IF r[P3]<r[P1] */
-#define OP_Ge             57 /* jump, same as TK_GE, synopsis: IF r[P3]>=r[P1] */
-#define OP_ElseNotEq      58 /* jump, same as TK_ESCAPE                    */
-#define OP_DecrJumpZero   59 /* jump, synopsis: if (--r[P1])==0 goto P2    */
-#define OP_IncrVacuum     60 /* jump                                       */
-#define OP_VNext          61 /* jump                                       */
-#define OP_Init           62 /* jump, synopsis: Start at P2                */
-#define OP_PureFunc       63 /* synopsis: r[P3]=func(r[P2@P5])             */
-#define OP_Function       64 /* synopsis: r[P3]=func(r[P2@P5])             */
-#define OP_Return         65
-#define OP_EndCoroutine   66
-#define OP_HaltIfNull     67 /* synopsis: if r[P3]=null halt               */
-#define OP_Halt           68
-#define OP_Integer        69 /* synopsis: r[P2]=P1                         */
-#define OP_Int64          70 /* synopsis: r[P2]=P4                         */
-#define OP_String         71 /* synopsis: r[P2]='P4' (len=P1)              */
-#define OP_Null           72 /* synopsis: r[P2..P3]=NULL                   */
-#define OP_SoftNull       73 /* synopsis: r[P1]=NULL                       */
-#define OP_Blob           74 /* synopsis: r[P2]=P4 (len=P1)                */
-#define OP_Variable       75 /* synopsis: r[P2]=parameter(P1,P4)           */
-#define OP_Move           76 /* synopsis: r[P2@P3]=r[P1@P3]                */
-#define OP_Copy           77 /* synopsis: r[P2@P3+1]=r[P1@P3+1]            */
-#define OP_SCopy          78 /* synopsis: r[P2]=r[P1]                      */
-#define OP_IntCopy        79 /* synopsis: r[P2]=r[P1]                      */
-#define OP_ResultRow      80 /* synopsis: output=r[P1@P2]                  */
-#define OP_CollSeq        81
-#define OP_AddImm         82 /* synopsis: r[P1]=r[P1]+P2                   */
-#define OP_RealAffinity   83
-#define OP_Cast           84 /* synopsis: affinity(r[P1])                  */
-#define OP_Permutation    85
-#define OP_Compare        86 /* synopsis: r[P1@P3] <-> r[P2@P3]            */
-#define OP_IsTrue         87 /* synopsis: r[P2] = coalesce(r[P1]==TRUE,P3) ^ P4 */
-#define OP_Offset         88 /* synopsis: r[P3] = sqlite_offset(P1)        */
-#define OP_Column         89 /* synopsis: r[P3]=PX                         */
-#define OP_Affinity       90 /* synopsis: affinity(r[P1@P2])               */
-#define OP_MakeRecord     91 /* synopsis: r[P3]=mkrec(r[P1@P2])            */
-#define OP_Count          92 /* synopsis: r[P2]=count()                    */
-#define OP_ReadCookie     93
-#define OP_SetCookie      94
-#define OP_ReopenIdx      95 /* synopsis: root=P2 iDb=P3                   */
-#define OP_OpenRead       96 /* synopsis: root=P2 iDb=P3                   */
-#define OP_OpenWrite      97 /* synopsis: root=P2 iDb=P3                   */
-#define OP_OpenDup        98
-#define OP_OpenAutoindex  99 /* synopsis: nColumn=P2                       */
-#define OP_OpenEphemeral 100 /* synopsis: nColumn=P2                       */
-#define OP_BitAnd        101 /* same as TK_BITAND, synopsis: r[P3]=r[P1]&r[P2] */
-#define OP_BitOr         102 /* same as TK_BITOR, synopsis: r[P3]=r[P1]|r[P2] */
-#define OP_ShiftLeft     103 /* same as TK_LSHIFT, synopsis: r[P3]=r[P2]<<r[P1] */
-#define OP_ShiftRight    104 /* same as TK_RSHIFT, synopsis: r[P3]=r[P2]>>r[P1] */
-#define OP_Add           105 /* same as TK_PLUS, synopsis: r[P3]=r[P1]+r[P2] */
-#define OP_Subtract      106 /* same as TK_MINUS, synopsis: r[P3]=r[P2]-r[P1] */
-#define OP_Multiply      107 /* same as TK_STAR, synopsis: r[P3]=r[P1]*r[P2] */
-#define OP_Divide        108 /* same as TK_SLASH, synopsis: r[P3]=r[P2]/r[P1] */
-#define OP_Remainder     109 /* same as TK_REM, synopsis: r[P3]=r[P2]%r[P1] */
-#define OP_Concat        110 /* same as TK_CONCAT, synopsis: r[P3]=r[P2]+r[P1] */
-#define OP_SorterOpen    111
-#define OP_BitNot        112 /* same as TK_BITNOT, synopsis: r[P2]= ~r[P1] */
-#define OP_SequenceTest  113 /* synopsis: if( cursor[P1].ctr++ ) pc = P2   */
-#define OP_OpenPseudo    114 /* synopsis: P3 columns in r[P2]              */
-#define OP_String8       115 /* same as TK_STRING, synopsis: r[P2]='P4'    */
-#define OP_Close         116
-#define OP_ColumnsUsed   117
-#define OP_SeekHit       118 /* synopsis: seekHit=P2                       */
-#define OP_Sequence      119 /* synopsis: r[P2]=cursor[P1].ctr++           */
-#define OP_NewRowid      120 /* synopsis: r[P2]=rowid                      */
-#define OP_Insert        121 /* synopsis: intkey=r[P3] data=r[P2]          */
-#define OP_Delete        122
-#define OP_ResetCount    123
-#define OP_SorterCompare 124 /* synopsis: if key(P1)!=trim(r[P3],P4) goto P2 */
-#define OP_SorterData    125 /* synopsis: r[P2]=data                       */
-#define OP_RowData       126 /* synopsis: r[P2]=data                       */
-#define OP_Rowid         127 /* synopsis: r[P2]=rowid                      */
-#define OP_NullRow       128
-#define OP_SeekEnd       129
-#define OP_SorterInsert  130 /* synopsis: key=r[P2]                        */
-#define OP_IdxInsert     131 /* synopsis: key=r[P2]                        */
-#define OP_IdxDelete     132 /* synopsis: key=r[P2@P3]                     */
-#define OP_DeferredSeek  133 /* synopsis: Move P3 to P1.rowid if needed    */
-#define OP_IdxRowid      134 /* synopsis: r[P2]=rowid                      */
-#define OP_FinishSeek    135
-#define OP_Destroy       136
-#define OP_Clear         137
-#define OP_ResetSorter   138
-#define OP_CreateBtree   139 /* synopsis: r[P2]=root iDb=P1 flags=P3       */
-#define OP_SqlExec       140
-#define OP_ParseSchema   141
-#define OP_LoadAnalysis  142
-#define OP_DropTable     143
-#define OP_DropIndex     144
-#define OP_DropTrigger   145
-#define OP_IntegrityCk   146
-#define OP_RowSetAdd     147 /* synopsis: rowset(P1)=r[P2]                 */
-#define OP_Param         148
-#define OP_FkCounter     149 /* synopsis: fkctr[P1]+=P2                    */
-#define OP_Real          150 /* same as TK_FLOAT, synopsis: r[P2]=P4       */
-#define OP_MemMax        151 /* synopsis: r[P1]=max(r[P1],r[P2])           */
-#define OP_OffsetLimit   152 /* synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1) */
-#define OP_AggInverse    153 /* synopsis: accum=r[P3] inverse(r[P2@P5])    */
-#define OP_AggStep       154 /* synopsis: accum=r[P3] step(r[P2@P5])       */
-#define OP_AggStep1      155 /* synopsis: accum=r[P3] step(r[P2@P5])       */
-#define OP_AggValue      156 /* synopsis: r[P3]=value N=P2                 */
-#define OP_AggFinal      157 /* synopsis: accum=r[P1] N=P2                 */
-#define OP_Expire        158
-#define OP_CursorLock    159
-#define OP_CursorUnlock  160
-#define OP_TableLock     161 /* synopsis: iDb=P1 root=P2 write=P3          */
-#define OP_VBegin        162
-#define OP_VCreate       163
-#define OP_VDestroy      164
-#define OP_VOpen         165
-#define OP_VColumn       166 /* synopsis: r[P3]=vcolumn(P2)                */
-#define OP_VRename       167
-#define OP_Pagecount     168
-#define OP_MaxPgcnt      169
-#define OP_Trace         170
-#define OP_CursorHint    171
-#define OP_ReleaseReg    172 /* synopsis: release r[P1@P2] mask P3         */
-#define OP_Noop          173
-#define OP_Explain       174
-#define OP_Abortable     175
-
-/* Properties such as "out2" or "jump" that are specified in
-** comments following the "case" for each opcode in the vdbe.c
-** are encoded into bitvectors as follows:
-*/
-#define OPFLG_JUMP        0x01  /* jump:  P2 holds jmp target */
-#define OPFLG_IN1         0x02  /* in1:   P1 is an input */
-#define OPFLG_IN2         0x04  /* in2:   P2 is an input */
-#define OPFLG_IN3         0x08  /* in3:   P3 is an input */
-#define OPFLG_OUT2        0x10  /* out2:  P2 is an output */
-#define OPFLG_OUT3        0x20  /* out3:  P3 is an output */
-#define OPFLG_INITIALIZER {\
-/*   0 */ 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x10,\
-/*   8 */ 0x00, 0x01, 0x00, 0x01, 0x01, 0x01, 0x03, 0x03,\
-/*  16 */ 0x01, 0x01, 0x03, 0x12, 0x03, 0x01, 0x09, 0x09,\
-/*  24 */ 0x09, 0x09, 0x01, 0x09, 0x09, 0x09, 0x09, 0x09,\
-/*  32 */ 0x09, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,\
-/*  40 */ 0x01, 0x01, 0x23, 0x26, 0x26, 0x0b, 0x01, 0x01,\
-/*  48 */ 0x03, 0x03, 0x03, 0x03, 0x0b, 0x0b, 0x0b, 0x0b,\
-/*  56 */ 0x0b, 0x0b, 0x01, 0x03, 0x01, 0x01, 0x01, 0x00,\
-/*  64 */ 0x00, 0x02, 0x02, 0x08, 0x00, 0x10, 0x10, 0x10,\
-/*  72 */ 0x10, 0x00, 0x10, 0x10, 0x00, 0x00, 0x10, 0x10,\
-/*  80 */ 0x00, 0x00, 0x02, 0x02, 0x02, 0x00, 0x00, 0x12,\
-/*  88 */ 0x20, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00, 0x00,\
-/*  96 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x26, 0x26, 0x26,\
-/* 104 */ 0x26, 0x26, 0x26, 0x26, 0x26, 0x26, 0x26, 0x00,\
-/* 112 */ 0x12, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x10,\
-/* 120 */ 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,\
-/* 128 */ 0x00, 0x00, 0x04, 0x04, 0x00, 0x00, 0x10, 0x00,\
-/* 136 */ 0x10, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00,\
-/* 144 */ 0x00, 0x00, 0x00, 0x06, 0x10, 0x00, 0x10, 0x04,\
-/* 152 */ 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
-/* 160 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
-/* 168 */ 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
-}
-
-/* The tdsqlite3P2Values() routine is able to run faster if it knows
-** the value of the largest JUMP opcode.  The smaller the maximum
-** JUMP opcode the better, so the mkopcodeh.tcl script that
-** generated this include file strives to group all JUMP opcodes
-** together near the beginning of the list.
-*/
-#define SQLITE_MX_JUMP_OPCODE  62  /* Maximum JUMP opcode */
-
-/************** End of opcodes.h *********************************************/
-/************** Continuing where we left off in vdbe.h ***********************/
-
-/*
-** Additional non-public SQLITE_PREPARE_* flags
-*/
-#define SQLITE_PREPARE_SAVESQL  0x80  /* Preserve SQL text */
-#define SQLITE_PREPARE_MASK     0x0f  /* Mask of public flags */
-
-/*
-** Prototypes for the VDBE interface.  See comments on the implementation
-** for a description of what each of these routines does.
-*/
-SQLITE_PRIVATE Vdbe *tdsqlite3VdbeCreate(Parse*);
-SQLITE_PRIVATE Parse *tdsqlite3VdbeParser(Vdbe*);
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp0(Vdbe*,int);
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp1(Vdbe*,int,int);
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp2(Vdbe*,int,int,int);
-SQLITE_PRIVATE int tdsqlite3VdbeGoto(Vdbe*,int);
-SQLITE_PRIVATE int tdsqlite3VdbeLoadString(Vdbe*,int,const char*);
-SQLITE_PRIVATE void tdsqlite3VdbeMultiLoad(Vdbe*,int,const char*,...);
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp3(Vdbe*,int,int,int,int);
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp4(Vdbe*,int,int,int,int,const char *zP4,int);
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp4Dup8(Vdbe*,int,int,int,int,const u8*,int);
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp4Int(Vdbe*,int,int,int,int,int);
-SQLITE_PRIVATE int tdsqlite3VdbeAddFunctionCall(Parse*,int,int,int,int,const FuncDef*,int);
-SQLITE_PRIVATE void tdsqlite3VdbeEndCoroutine(Vdbe*,int);
-#if defined(SQLITE_DEBUG) && !defined(SQLITE_TEST_REALLOC_STRESS)
-SQLITE_PRIVATE   void tdsqlite3VdbeVerifyNoMallocRequired(Vdbe *p, int N);
-SQLITE_PRIVATE   void tdsqlite3VdbeVerifyNoResultRow(Vdbe *p);
-#else
-# define tdsqlite3VdbeVerifyNoMallocRequired(A,B)
-# define tdsqlite3VdbeVerifyNoResultRow(A)
-#endif
-#if defined(SQLITE_DEBUG)
-SQLITE_PRIVATE   void tdsqlite3VdbeVerifyAbortable(Vdbe *p, int);
-#else
-# define tdsqlite3VdbeVerifyAbortable(A,B)
-#endif
-SQLITE_PRIVATE VdbeOp *tdsqlite3VdbeAddOpList(Vdbe*, int nOp, VdbeOpList const *aOp,int iLineno);
-#ifndef SQLITE_OMIT_EXPLAIN
-SQLITE_PRIVATE   void tdsqlite3VdbeExplain(Parse*,u8,const char*,...);
-SQLITE_PRIVATE   void tdsqlite3VdbeExplainPop(Parse*);
-SQLITE_PRIVATE   int tdsqlite3VdbeExplainParent(Parse*);
-# define ExplainQueryPlan(P)        tdsqlite3VdbeExplain P
-# define ExplainQueryPlanPop(P)     tdsqlite3VdbeExplainPop(P)
-# define ExplainQueryPlanParent(P)  tdsqlite3VdbeExplainParent(P)
-#else
-# define ExplainQueryPlan(P)
-# define ExplainQueryPlanPop(P)
-# define ExplainQueryPlanParent(P) 0
-# define tdsqlite3ExplainBreakpoint(A,B) /*no-op*/
-#endif
-#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_EXPLAIN)
-SQLITE_PRIVATE   void tdsqlite3ExplainBreakpoint(const char*,const char*);
-#else
-# define tdsqlite3ExplainBreakpoint(A,B) /*no-op*/
-#endif
-SQLITE_PRIVATE void tdsqlite3VdbeAddParseSchemaOp(Vdbe*,int,char*);
-SQLITE_PRIVATE void tdsqlite3VdbeChangeOpcode(Vdbe*, int addr, u8);
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP1(Vdbe*, int addr, int P1);
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP2(Vdbe*, int addr, int P2);
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP3(Vdbe*, int addr, int P3);
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP5(Vdbe*, u16 P5);
-SQLITE_PRIVATE void tdsqlite3VdbeJumpHere(Vdbe*, int addr);
-SQLITE_PRIVATE int tdsqlite3VdbeChangeToNoop(Vdbe*, int addr);
-SQLITE_PRIVATE int tdsqlite3VdbeDeletePriorOpcode(Vdbe*, u8 op);
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE   void tdsqlite3VdbeReleaseRegisters(Parse*,int addr, int n, u32 mask, int);
-#else
-# define tdsqlite3VdbeReleaseRegisters(P,A,N,M,F)
-#endif
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP4(Vdbe*, int addr, const char *zP4, int N);
-SQLITE_PRIVATE void tdsqlite3VdbeAppendP4(Vdbe*, void *pP4, int p4type);
-SQLITE_PRIVATE void tdsqlite3VdbeSetP4KeyInfo(Parse*, Index*);
-SQLITE_PRIVATE void tdsqlite3VdbeUsesBtree(Vdbe*, int);
-SQLITE_PRIVATE VdbeOp *tdsqlite3VdbeGetOp(Vdbe*, int);
-SQLITE_PRIVATE int tdsqlite3VdbeMakeLabel(Parse*);
-SQLITE_PRIVATE void tdsqlite3VdbeRunOnlyOnce(Vdbe*);
-SQLITE_PRIVATE void tdsqlite3VdbeReusable(Vdbe*);
-SQLITE_PRIVATE void tdsqlite3VdbeDelete(Vdbe*);
-SQLITE_PRIVATE void tdsqlite3VdbeClearObject(tdsqlite3*,Vdbe*);
-SQLITE_PRIVATE void tdsqlite3VdbeMakeReady(Vdbe*,Parse*);
-SQLITE_PRIVATE int tdsqlite3VdbeFinalize(Vdbe*);
-SQLITE_PRIVATE void tdsqlite3VdbeResolveLabel(Vdbe*, int);
-SQLITE_PRIVATE int tdsqlite3VdbeCurrentAddr(Vdbe*);
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE   int tdsqlite3VdbeAssertMayAbort(Vdbe *, int);
-#endif
-SQLITE_PRIVATE void tdsqlite3VdbeResetStepResult(Vdbe*);
-SQLITE_PRIVATE void tdsqlite3VdbeRewind(Vdbe*);
-SQLITE_PRIVATE int tdsqlite3VdbeReset(Vdbe*);
-SQLITE_PRIVATE void tdsqlite3VdbeSetNumCols(Vdbe*,int);
-SQLITE_PRIVATE int tdsqlite3VdbeSetColName(Vdbe*, int, int, const char *, void(*)(void*));
-SQLITE_PRIVATE void tdsqlite3VdbeCountChanges(Vdbe*);
-SQLITE_PRIVATE tdsqlite3 *tdsqlite3VdbeDb(Vdbe*);
-SQLITE_PRIVATE u8 tdsqlite3VdbePrepareFlags(Vdbe*);
-SQLITE_PRIVATE void tdsqlite3VdbeSetSql(Vdbe*, const char *z, int n, u8);
-#ifdef SQLITE_ENABLE_NORMALIZE
-SQLITE_PRIVATE void tdsqlite3VdbeAddDblquoteStr(tdsqlite3*,Vdbe*,const char*);
-SQLITE_PRIVATE int tdsqlite3VdbeUsesDoubleQuotedString(Vdbe*,const char*);
-#endif
-SQLITE_PRIVATE void tdsqlite3VdbeSwap(Vdbe*,Vdbe*);
-SQLITE_PRIVATE VdbeOp *tdsqlite3VdbeTakeOpArray(Vdbe*, int*, int*);
-SQLITE_PRIVATE tdsqlite3_value *tdsqlite3VdbeGetBoundValue(Vdbe*, int, u8);
-SQLITE_PRIVATE void tdsqlite3VdbeSetVarmask(Vdbe*, int);
-#ifndef SQLITE_OMIT_TRACE
-SQLITE_PRIVATE   char *tdsqlite3VdbeExpandSql(Vdbe*, const char*);
-#endif
-SQLITE_PRIVATE int tdsqlite3MemCompare(const Mem*, const Mem*, const CollSeq*);
-SQLITE_PRIVATE int tdsqlite3BlobCompare(const Mem*, const Mem*);
-
-SQLITE_PRIVATE void tdsqlite3VdbeRecordUnpack(KeyInfo*,int,const void*,UnpackedRecord*);
-SQLITE_PRIVATE int tdsqlite3VdbeRecordCompare(int,const void*,UnpackedRecord*);
-SQLITE_PRIVATE int tdsqlite3VdbeRecordCompareWithSkip(int, const void *, UnpackedRecord *, int);
-SQLITE_PRIVATE UnpackedRecord *tdsqlite3VdbeAllocUnpackedRecord(KeyInfo*);
-
-typedef int (*RecordCompare)(int,const void*,UnpackedRecord*);
-SQLITE_PRIVATE RecordCompare tdsqlite3VdbeFindCompare(UnpackedRecord*);
-
-SQLITE_PRIVATE void tdsqlite3VdbeLinkSubProgram(Vdbe *, SubProgram *);
-SQLITE_PRIVATE int tdsqlite3VdbeHasSubProgram(Vdbe*);
-
-SQLITE_PRIVATE int tdsqlite3NotPureFunc(tdsqlite3_context*);
-
-/* Use SQLITE_ENABLE_COMMENTS to enable generation of extra comments on
-** each VDBE opcode.
-**
-** Use the SQLITE_ENABLE_MODULE_COMMENTS macro to see some extra no-op
-** comments in VDBE programs that show key decision points in the code
-** generator.
-*/
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-SQLITE_PRIVATE   void tdsqlite3VdbeComment(Vdbe*, const char*, ...);
-# define VdbeComment(X)  tdsqlite3VdbeComment X
-SQLITE_PRIVATE   void tdsqlite3VdbeNoopComment(Vdbe*, const char*, ...);
-# define VdbeNoopComment(X)  tdsqlite3VdbeNoopComment X
-# ifdef SQLITE_ENABLE_MODULE_COMMENTS
-#   define VdbeModuleComment(X)  tdsqlite3VdbeNoopComment X
-# else
-#   define VdbeModuleComment(X)
-# endif
-#else
-# define VdbeComment(X)
-# define VdbeNoopComment(X)
-# define VdbeModuleComment(X)
-#endif
-
-/*
-** The VdbeCoverage macros are used to set a coverage testing point
-** for VDBE branch instructions.  The coverage testing points are line
-** numbers in the sqlite3.c source file.  VDBE branch coverage testing
-** only works with an amalagmation build.  That's ok since a VDBE branch
-** coverage build designed for testing the test suite only.  No application
-** should ever ship with VDBE branch coverage measuring turned on.
-**
-**    VdbeCoverage(v)                  // Mark the previously coded instruction
-**                                     // as a branch
-**
-**    VdbeCoverageIf(v, conditional)   // Mark previous if conditional true
-**
-**    VdbeCoverageAlwaysTaken(v)       // Previous branch is always taken
-**
-**    VdbeCoverageNeverTaken(v)        // Previous branch is never taken
-**
-**    VdbeCoverageNeverNull(v)         // Previous three-way branch is only
-**                                     // taken on the first two ways.  The
-**                                     // NULL option is not possible
-**
-**    VdbeCoverageEqNe(v)              // Previous OP_Jump is only interested
-**                                     // in distingishing equal and not-equal.
-**
-** Every VDBE branch operation must be tagged with one of the macros above.
-** If not, then when "make test" is run with -DSQLITE_VDBE_COVERAGE and
-** -DSQLITE_DEBUG then an ALWAYS() will fail in the vdbeTakeBranch()
-** routine in vdbe.c, alerting the developer to the missed tag.
-**
-** During testing, the test application will invoke
-** tdsqlite3_test_control(SQLITE_TESTCTRL_VDBE_COVERAGE,...) to set a callback
-** routine that is invoked as each bytecode branch is taken.  The callback
-** contains the sqlite3.c source line number ov the VdbeCoverage macro and
-** flags to indicate whether or not the branch was taken.  The test application
-** is responsible for keeping track of this and reporting byte-code branches
-** that are never taken.
-**
-** See the VdbeBranchTaken() macro and vdbeTakeBranch() function in the
-** vdbe.c source file for additional information.
-*/
-#ifdef SQLITE_VDBE_COVERAGE
-SQLITE_PRIVATE   void tdsqlite3VdbeSetLineNumber(Vdbe*,int);
-# define VdbeCoverage(v) tdsqlite3VdbeSetLineNumber(v,__LINE__)
-# define VdbeCoverageIf(v,x) if(x)tdsqlite3VdbeSetLineNumber(v,__LINE__)
-# define VdbeCoverageAlwaysTaken(v) \
-         tdsqlite3VdbeSetLineNumber(v,__LINE__|0x5000000);
-# define VdbeCoverageNeverTaken(v) \
-         tdsqlite3VdbeSetLineNumber(v,__LINE__|0x6000000);
-# define VdbeCoverageNeverNull(v) \
-         tdsqlite3VdbeSetLineNumber(v,__LINE__|0x4000000);
-# define VdbeCoverageNeverNullIf(v,x) \
-         if(x)tdsqlite3VdbeSetLineNumber(v,__LINE__|0x4000000);
-# define VdbeCoverageEqNe(v) \
-         tdsqlite3VdbeSetLineNumber(v,__LINE__|0x8000000);
-# define VDBE_OFFSET_LINENO(x) (__LINE__+x)
-#else
-# define VdbeCoverage(v)
-# define VdbeCoverageIf(v,x)
-# define VdbeCoverageAlwaysTaken(v)
-# define VdbeCoverageNeverTaken(v)
-# define VdbeCoverageNeverNull(v)
-# define VdbeCoverageNeverNullIf(v,x)
-# define VdbeCoverageEqNe(v)
-# define VDBE_OFFSET_LINENO(x) 0
-#endif
-
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-SQLITE_PRIVATE void tdsqlite3VdbeScanStatus(Vdbe*, int, int, int, LogEst, const char*);
-#else
-# define tdsqlite3VdbeScanStatus(a,b,c,d,e)
-#endif
-
-#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
-SQLITE_PRIVATE void tdsqlite3VdbePrintOp(FILE*, int, VdbeOp*);
-#endif
-
-#endif /* SQLITE_VDBE_H */
-
-/************** End of vdbe.h ************************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-/************** Include pager.h in the middle of sqliteInt.h *****************/
-/************** Begin file pager.h *******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the interface that the sqlite page cache
-** subsystem.  The page cache subsystem reads and writes a file a page
-** at a time and provides a journal for rollback.
-*/
-
-#ifndef SQLITE_PAGER_H
-#define SQLITE_PAGER_H
-
-/*
-** Default maximum size for persistent journal files. A negative 
-** value means no limit. This value may be overridden using the 
-** tdsqlite3PagerJournalSizeLimit() API. See also "PRAGMA journal_size_limit".
-*/
-#ifndef SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT
-  #define SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT -1
-#endif
-
-/*
-** The type used to represent a page number.  The first page in a file
-** is called page 1.  0 is used to represent "not a page".
-*/
-typedef u32 Pgno;
-
-/*
-** Each open file is managed by a separate instance of the "Pager" structure.
-*/
-typedef struct Pager Pager;
-
-/*
-** Handle type for pages.
-*/
-typedef struct PgHdr DbPage;
-
-/*
-** Page number PAGER_MJ_PGNO is never used in an SQLite database (it is
-** reserved for working around a windows/posix incompatibility). It is
-** used in the journal to signify that the remainder of the journal file 
-** is devoted to storing a master journal name - there are no more pages to
-** roll back. See comments for function writeMasterJournal() in pager.c 
-** for details.
-*/
-#define PAGER_MJ_PGNO(x) ((Pgno)((PENDING_BYTE/((x)->pageSize))+1))
-
-/*
-** Allowed values for the flags parameter to tdsqlite3PagerOpen().
-**
-** NOTE: These values must match the corresponding BTREE_ values in btree.h.
-*/
-#define PAGER_OMIT_JOURNAL  0x0001    /* Do not use a rollback journal */
-#define PAGER_MEMORY        0x0002    /* In-memory database */
-
-/*
-** Valid values for the second argument to tdsqlite3PagerLockingMode().
-*/
-#define PAGER_LOCKINGMODE_QUERY      -1
-#define PAGER_LOCKINGMODE_NORMAL      0
-#define PAGER_LOCKINGMODE_EXCLUSIVE   1
-
-/*
-** Numeric constants that encode the journalmode.
-**
-** The numeric values encoded here (other than PAGER_JOURNALMODE_QUERY)
-** are exposed in the API via the "PRAGMA journal_mode" command and
-** therefore cannot be changed without a compatibility break.
-*/
-#define PAGER_JOURNALMODE_QUERY     (-1)  /* Query the value of journalmode */
-#define PAGER_JOURNALMODE_DELETE      0   /* Commit by deleting journal file */
-#define PAGER_JOURNALMODE_PERSIST     1   /* Commit by zeroing journal header */
-#define PAGER_JOURNALMODE_OFF         2   /* Journal omitted.  */
-#define PAGER_JOURNALMODE_TRUNCATE    3   /* Commit by truncating journal */
-#define PAGER_JOURNALMODE_MEMORY      4   /* In-memory journal file */
-#define PAGER_JOURNALMODE_WAL         5   /* Use write-ahead logging */
-
-/*
-** Flags that make up the mask passed to tdsqlite3PagerGet().
-*/
-#define PAGER_GET_NOCONTENT     0x01  /* Do not load data from disk */
-#define PAGER_GET_READONLY      0x02  /* Read-only page is acceptable */
-
-/*
-** Flags for tdsqlite3PagerSetFlags()
-**
-** Value constraints (enforced via assert()):
-**    PAGER_FULLFSYNC      == SQLITE_FullFSync
-**    PAGER_CKPT_FULLFSYNC == SQLITE_CkptFullFSync
-**    PAGER_CACHE_SPILL    == SQLITE_CacheSpill
-*/
-#define PAGER_SYNCHRONOUS_OFF       0x01  /* PRAGMA synchronous=OFF */
-#define PAGER_SYNCHRONOUS_NORMAL    0x02  /* PRAGMA synchronous=NORMAL */
-#define PAGER_SYNCHRONOUS_FULL      0x03  /* PRAGMA synchronous=FULL */
-#define PAGER_SYNCHRONOUS_EXTRA     0x04  /* PRAGMA synchronous=EXTRA */
-#define PAGER_SYNCHRONOUS_MASK      0x07  /* Mask for four values above */
-#define PAGER_FULLFSYNC             0x08  /* PRAGMA fullfsync=ON */
-#define PAGER_CKPT_FULLFSYNC        0x10  /* PRAGMA checkpoint_fullfsync=ON */
-#define PAGER_CACHESPILL            0x20  /* PRAGMA cache_spill=ON */
-#define PAGER_FLAGS_MASK            0x38  /* All above except SYNCHRONOUS */
-
-/*
-** The remainder of this file contains the declarations of the functions
-** that make up the Pager sub-system API. See source code comments for 
-** a detailed description of each routine.
-*/
-
-/* Open and close a Pager connection. */ 
-SQLITE_PRIVATE int tdsqlite3PagerOpen(
-  tdsqlite3_vfs*,
-  Pager **ppPager,
-  const char*,
-  int,
-  int,
-  int,
-  void(*)(DbPage*)
-);
-SQLITE_PRIVATE int tdsqlite3PagerClose(Pager *pPager, tdsqlite3*);
-SQLITE_PRIVATE int tdsqlite3PagerReadFileheader(Pager*, int, unsigned char*);
-
-/* Functions used to configure a Pager object. */
-SQLITE_PRIVATE void tdsqlite3PagerSetBusyHandler(Pager*, int(*)(void *), void *);
-SQLITE_PRIVATE int tdsqlite3PagerSetPagesize(Pager*, u32*, int);
-#ifdef SQLITE_HAS_CODEC
-SQLITE_PRIVATE void tdsqlite3PagerAlignReserve(Pager*,Pager*);
-#endif
-SQLITE_PRIVATE int tdsqlite3PagerMaxPageCount(Pager*, int);
-SQLITE_PRIVATE void tdsqlite3PagerSetCachesize(Pager*, int);
-SQLITE_PRIVATE int tdsqlite3PagerSetSpillsize(Pager*, int);
-SQLITE_PRIVATE void tdsqlite3PagerSetMmapLimit(Pager *, tdsqlite3_int64);
-SQLITE_PRIVATE void tdsqlite3PagerShrink(Pager*);
-SQLITE_PRIVATE void tdsqlite3PagerSetFlags(Pager*,unsigned);
-SQLITE_PRIVATE int tdsqlite3PagerLockingMode(Pager *, int);
-SQLITE_PRIVATE int tdsqlite3PagerSetJournalMode(Pager *, int);
-SQLITE_PRIVATE int tdsqlite3PagerGetJournalMode(Pager*);
-SQLITE_PRIVATE int tdsqlite3PagerOkToChangeJournalMode(Pager*);
-SQLITE_PRIVATE i64 tdsqlite3PagerJournalSizeLimit(Pager *, i64);
-SQLITE_PRIVATE tdsqlite3_backup **tdsqlite3PagerBackupPtr(Pager*);
-SQLITE_PRIVATE int tdsqlite3PagerFlush(Pager*);
-
-/* Functions used to obtain and release page references. */ 
-SQLITE_PRIVATE int tdsqlite3PagerGet(Pager *pPager, Pgno pgno, DbPage **ppPage, int clrFlag);
-SQLITE_PRIVATE DbPage *tdsqlite3PagerLookup(Pager *pPager, Pgno pgno);
-SQLITE_PRIVATE void tdsqlite3PagerRef(DbPage*);
-SQLITE_PRIVATE void tdsqlite3PagerUnref(DbPage*);
-SQLITE_PRIVATE void tdsqlite3PagerUnrefNotNull(DbPage*);
-SQLITE_PRIVATE void tdsqlite3PagerUnrefPageOne(DbPage*);
-
-/* Operations on page references. */
-SQLITE_PRIVATE int tdsqlite3PagerWrite(DbPage*);
-SQLITE_PRIVATE void tdsqlite3PagerDontWrite(DbPage*);
-SQLITE_PRIVATE int tdsqlite3PagerMovepage(Pager*,DbPage*,Pgno,int);
-SQLITE_PRIVATE int tdsqlite3PagerPageRefcount(DbPage*);
-SQLITE_PRIVATE void *tdsqlite3PagerGetData(DbPage *); 
-SQLITE_PRIVATE void *tdsqlite3PagerGetExtra(DbPage *); 
-
-/* Functions used to manage pager transactions and savepoints. */
-SQLITE_PRIVATE void tdsqlite3PagerPagecount(Pager*, int*);
-SQLITE_PRIVATE int tdsqlite3PagerBegin(Pager*, int exFlag, int);
-SQLITE_PRIVATE int tdsqlite3PagerCommitPhaseOne(Pager*,const char *zMaster, int);
-SQLITE_PRIVATE int tdsqlite3PagerExclusiveLock(Pager*);
-SQLITE_PRIVATE int tdsqlite3PagerSync(Pager *pPager, const char *zMaster);
-SQLITE_PRIVATE int tdsqlite3PagerCommitPhaseTwo(Pager*);
-SQLITE_PRIVATE int tdsqlite3PagerRollback(Pager*);
-SQLITE_PRIVATE int tdsqlite3PagerOpenSavepoint(Pager *pPager, int n);
-SQLITE_PRIVATE int tdsqlite3PagerSavepoint(Pager *pPager, int op, int iSavepoint);
-SQLITE_PRIVATE int tdsqlite3PagerSharedLock(Pager *pPager);
-
-#ifndef SQLITE_OMIT_WAL
-SQLITE_PRIVATE   int tdsqlite3PagerCheckpoint(Pager *pPager, tdsqlite3*, int, int*, int*);
-SQLITE_PRIVATE   int tdsqlite3PagerWalSupported(Pager *pPager);
-SQLITE_PRIVATE   int tdsqlite3PagerWalCallback(Pager *pPager);
-SQLITE_PRIVATE   int tdsqlite3PagerOpenWal(Pager *pPager, int *pisOpen);
-SQLITE_PRIVATE   int tdsqlite3PagerCloseWal(Pager *pPager, tdsqlite3*);
-# ifdef SQLITE_ENABLE_SNAPSHOT
-SQLITE_PRIVATE   int tdsqlite3PagerSnapshotGet(Pager *pPager, tdsqlite3_snapshot **ppSnapshot);
-SQLITE_PRIVATE   int tdsqlite3PagerSnapshotOpen(Pager *pPager, tdsqlite3_snapshot *pSnapshot);
-SQLITE_PRIVATE   int tdsqlite3PagerSnapshotRecover(Pager *pPager);
-SQLITE_PRIVATE   int tdsqlite3PagerSnapshotCheck(Pager *pPager, tdsqlite3_snapshot *pSnapshot);
-SQLITE_PRIVATE   void tdsqlite3PagerSnapshotUnlock(Pager *pPager);
-# endif
-#endif
-
-#ifdef SQLITE_DIRECT_OVERFLOW_READ
-SQLITE_PRIVATE   int tdsqlite3PagerDirectReadOk(Pager *pPager, Pgno pgno);
-#endif
-
-#ifdef SQLITE_ENABLE_ZIPVFS
-SQLITE_PRIVATE   int tdsqlite3PagerWalFramesize(Pager *pPager);
-#endif
-
-/* Functions used to query pager state and configuration. */
-SQLITE_PRIVATE u8 tdsqlite3PagerIsreadonly(Pager*);
-SQLITE_PRIVATE u32 tdsqlite3PagerDataVersion(Pager*);
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE   int tdsqlite3PagerRefcount(Pager*);
-#endif
-SQLITE_PRIVATE int tdsqlite3PagerMemUsed(Pager*);
-SQLITE_PRIVATE const char *tdsqlite3PagerFilename(const Pager*, int);
-SQLITE_PRIVATE tdsqlite3_vfs *tdsqlite3PagerVfs(Pager*);
-SQLITE_PRIVATE tdsqlite3_file *tdsqlite3PagerFile(Pager*);
-SQLITE_PRIVATE tdsqlite3_file *tdsqlite3PagerJrnlFile(Pager*);
-SQLITE_PRIVATE const char *tdsqlite3PagerJournalname(Pager*);
-SQLITE_PRIVATE void *tdsqlite3PagerTempSpace(Pager*);
-SQLITE_PRIVATE int tdsqlite3PagerIsMemdb(Pager*);
-SQLITE_PRIVATE void tdsqlite3PagerCacheStat(Pager *, int, int, int *);
-SQLITE_PRIVATE void tdsqlite3PagerClearCache(Pager*);
-SQLITE_PRIVATE int tdsqlite3SectorSize(tdsqlite3_file *);
-#ifdef SQLITE_ENABLE_SETLK_TIMEOUT
-SQLITE_PRIVATE void tdsqlite3PagerResetLockTimeout(Pager *pPager);
-#else
-# define tdsqlite3PagerResetLockTimeout(X)
-#endif
-
-/* Functions used to truncate the database file. */
-SQLITE_PRIVATE void tdsqlite3PagerTruncateImage(Pager*,Pgno);
-
-SQLITE_PRIVATE void tdsqlite3PagerRekey(DbPage*, Pgno, u16);
-
-#if defined(SQLITE_HAS_CODEC) && !defined(SQLITE_OMIT_WAL)
-SQLITE_PRIVATE void *tdsqlite3PagerCodec(DbPage *);
-#endif
-
-/* Functions to support testing and debugging. */
-#if !defined(NDEBUG) || defined(SQLITE_TEST)
-SQLITE_PRIVATE   Pgno tdsqlite3PagerPagenumber(DbPage*);
-SQLITE_PRIVATE   int tdsqlite3PagerIswriteable(DbPage*);
-#endif
-#ifdef SQLITE_TEST
-SQLITE_PRIVATE   int *tdsqlite3PagerStats(Pager*);
-SQLITE_PRIVATE   void tdsqlite3PagerRefdump(Pager*);
-  void disable_simulated_io_errors(void);
-  void enable_simulated_io_errors(void);
-#else
-# define disable_simulated_io_errors()
-# define enable_simulated_io_errors()
-#endif
-
-#endif /* SQLITE_PAGER_H */
-
-/************** End of pager.h ***********************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-/************** Include pcache.h in the middle of sqliteInt.h ****************/
-/************** Begin file pcache.h ******************************************/
-/*
-** 2008 August 05
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the interface that the sqlite page cache
-** subsystem. 
-*/
-
-#ifndef _PCACHE_H_
-
-typedef struct PgHdr PgHdr;
-typedef struct PCache PCache;
-
-/*
-** Every page in the cache is controlled by an instance of the following
-** structure.
-*/
-struct PgHdr {
-  tdsqlite3_pcache_page *pPage;    /* Pcache object page handle */
-  void *pData;                   /* Page data */
-  void *pExtra;                  /* Extra content */
-  PCache *pCache;                /* PRIVATE: Cache that owns this page */
-  PgHdr *pDirty;                 /* Transient list of dirty sorted by pgno */
-  Pager *pPager;                 /* The pager this page is part of */
-  Pgno pgno;                     /* Page number for this page */
-#ifdef SQLITE_CHECK_PAGES
-  u32 pageHash;                  /* Hash of page content */
-#endif
-  u16 flags;                     /* PGHDR flags defined below */
-
-  /**********************************************************************
-  ** Elements above, except pCache, are public.  All that follow are 
-  ** private to pcache.c and should not be accessed by other modules.
-  ** pCache is grouped with the public elements for efficiency.
-  */
-  i16 nRef;                      /* Number of users of this page */
-  PgHdr *pDirtyNext;             /* Next element in list of dirty pages */
-  PgHdr *pDirtyPrev;             /* Previous element in list of dirty pages */
-                          /* NB: pDirtyNext and pDirtyPrev are undefined if the
-                          ** PgHdr object is not dirty */
-};
-
-/* Bit values for PgHdr.flags */
-#define PGHDR_CLEAN           0x001  /* Page not on the PCache.pDirty list */
-#define PGHDR_DIRTY           0x002  /* Page is on the PCache.pDirty list */
-#define PGHDR_WRITEABLE       0x004  /* Journaled and ready to modify */
-#define PGHDR_NEED_SYNC       0x008  /* Fsync the rollback journal before
-                                     ** writing this page to the database */
-#define PGHDR_DONT_WRITE      0x010  /* Do not write content to disk */
-#define PGHDR_MMAP            0x020  /* This is an mmap page object */
-
-#define PGHDR_WAL_APPEND      0x040  /* Appended to wal file */
-
-/* Initialize and shutdown the page cache subsystem */
-SQLITE_PRIVATE int tdsqlite3PcacheInitialize(void);
-SQLITE_PRIVATE void tdsqlite3PcacheShutdown(void);
-
-/* Page cache buffer management:
-** These routines implement SQLITE_CONFIG_PAGECACHE.
-*/
-SQLITE_PRIVATE void tdsqlite3PCacheBufferSetup(void *, int sz, int n);
-
-/* Create a new pager cache.
-** Under memory stress, invoke xStress to try to make pages clean.
-** Only clean and unpinned pages can be reclaimed.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheOpen(
-  int szPage,                    /* Size of every page */
-  int szExtra,                   /* Extra space associated with each page */
-  int bPurgeable,                /* True if pages are on backing store */
-  int (*xStress)(void*, PgHdr*), /* Call to try to make pages clean */
-  void *pStress,                 /* Argument to xStress */
-  PCache *pToInit                /* Preallocated space for the PCache */
-);
-
-/* Modify the page-size after the cache has been created. */
-SQLITE_PRIVATE int tdsqlite3PcacheSetPageSize(PCache *, int);
-
-/* Return the size in bytes of a PCache object.  Used to preallocate
-** storage space.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheSize(void);
-
-/* One release per successful fetch.  Page is pinned until released.
-** Reference counted. 
-*/
-SQLITE_PRIVATE tdsqlite3_pcache_page *tdsqlite3PcacheFetch(PCache*, Pgno, int createFlag);
-SQLITE_PRIVATE int tdsqlite3PcacheFetchStress(PCache*, Pgno, tdsqlite3_pcache_page**);
-SQLITE_PRIVATE PgHdr *tdsqlite3PcacheFetchFinish(PCache*, Pgno, tdsqlite3_pcache_page *pPage);
-SQLITE_PRIVATE void tdsqlite3PcacheRelease(PgHdr*);
-
-SQLITE_PRIVATE void tdsqlite3PcacheDrop(PgHdr*);         /* Remove page from cache */
-SQLITE_PRIVATE void tdsqlite3PcacheMakeDirty(PgHdr*);    /* Make sure page is marked dirty */
-SQLITE_PRIVATE void tdsqlite3PcacheMakeClean(PgHdr*);    /* Mark a single page as clean */
-SQLITE_PRIVATE void tdsqlite3PcacheCleanAll(PCache*);    /* Mark all dirty list pages as clean */
-SQLITE_PRIVATE void tdsqlite3PcacheClearWritable(PCache*);
-
-/* Change a page number.  Used by incr-vacuum. */
-SQLITE_PRIVATE void tdsqlite3PcacheMove(PgHdr*, Pgno);
-
-/* Remove all pages with pgno>x.  Reset the cache if x==0 */
-SQLITE_PRIVATE void tdsqlite3PcacheTruncate(PCache*, Pgno x);
-
-/* Get a list of all dirty pages in the cache, sorted by page number */
-SQLITE_PRIVATE PgHdr *tdsqlite3PcacheDirtyList(PCache*);
-
-/* Reset and close the cache object */
-SQLITE_PRIVATE void tdsqlite3PcacheClose(PCache*);
-
-/* Clear flags from pages of the page cache */
-SQLITE_PRIVATE void tdsqlite3PcacheClearSyncFlags(PCache *);
-
-/* Discard the contents of the cache */
-SQLITE_PRIVATE void tdsqlite3PcacheClear(PCache*);
-
-/* Return the total number of outstanding page references */
-SQLITE_PRIVATE int tdsqlite3PcacheRefCount(PCache*);
-
-/* Increment the reference count of an existing page */
-SQLITE_PRIVATE void tdsqlite3PcacheRef(PgHdr*);
-
-SQLITE_PRIVATE int tdsqlite3PcachePageRefcount(PgHdr*);
-
-/* Return the total number of pages stored in the cache */
-SQLITE_PRIVATE int tdsqlite3PcachePagecount(PCache*);
-
-#if defined(SQLITE_CHECK_PAGES) || defined(SQLITE_DEBUG)
-/* Iterate through all dirty pages currently stored in the cache. This
-** interface is only available if SQLITE_CHECK_PAGES is defined when the 
-** library is built.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheIterateDirty(PCache *pCache, void (*xIter)(PgHdr *));
-#endif
-
-#if defined(SQLITE_DEBUG)
-/* Check invariants on a PgHdr object */
-SQLITE_PRIVATE int tdsqlite3PcachePageSanity(PgHdr*);
-#endif
-
-/* Set and get the suggested cache-size for the specified pager-cache.
-**
-** If no global maximum is configured, then the system attempts to limit
-** the total number of pages cached by purgeable pager-caches to the sum
-** of the suggested cache-sizes.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheSetCachesize(PCache *, int);
-#ifdef SQLITE_TEST
-SQLITE_PRIVATE int tdsqlite3PcacheGetCachesize(PCache *);
-#endif
-
-/* Set or get the suggested spill-size for the specified pager-cache.
-**
-** The spill-size is the minimum number of pages in cache before the cache
-** will attempt to spill dirty pages by calling xStress.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheSetSpillsize(PCache *, int);
-
-/* Free up as much memory as possible from the page cache */
-SQLITE_PRIVATE void tdsqlite3PcacheShrink(PCache*);
-
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-/* Try to return memory used by the pcache module to the main memory heap */
-SQLITE_PRIVATE int tdsqlite3PcacheReleaseMemory(int);
-#endif
-
-#ifdef SQLITE_TEST
-SQLITE_PRIVATE void tdsqlite3PcacheStats(int*,int*,int*,int*);
-#endif
-
-SQLITE_PRIVATE void tdsqlite3PCacheSetDefault(void);
-
-/* Return the header size */
-SQLITE_PRIVATE int tdsqlite3HeaderSizePcache(void);
-SQLITE_PRIVATE int tdsqlite3HeaderSizePcache1(void);
-
-/* Number of dirty pages as a percentage of the configured cache size */
-SQLITE_PRIVATE int tdsqlite3PCachePercentDirty(PCache*);
-
-#ifdef SQLITE_DIRECT_OVERFLOW_READ
-SQLITE_PRIVATE int tdsqlite3PCacheIsDirty(PCache *pCache);
-#endif
-
-#endif /* _PCACHE_H_ */
-
-/************** End of pcache.h **********************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-/************** Include os.h in the middle of sqliteInt.h ********************/
-/************** Begin file os.h **********************************************/
-/*
-** 2001 September 16
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This header file (together with is companion C source-code file
-** "os.c") attempt to abstract the underlying operating system so that
-** the SQLite library will work on both POSIX and windows systems.
-**
-** This header file is #include-ed by sqliteInt.h and thus ends up
-** being included by every source file.
-*/
-#ifndef _SQLITE_OS_H_
-#define _SQLITE_OS_H_
-
-/*
-** Attempt to automatically detect the operating system and setup the
-** necessary pre-processor macros for it.
-*/
-/************** Include os_setup.h in the middle of os.h *********************/
-/************** Begin file os_setup.h ****************************************/
-/*
-** 2013 November 25
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains pre-processor directives related to operating system
-** detection and/or setup.
-*/
-#ifndef SQLITE_OS_SETUP_H
-#define SQLITE_OS_SETUP_H
-
-/*
-** Figure out if we are dealing with Unix, Windows, or some other operating
-** system.
-**
-** After the following block of preprocess macros, all of SQLITE_OS_UNIX,
-** SQLITE_OS_WIN, and SQLITE_OS_OTHER will defined to either 1 or 0.  One of
-** the three will be 1.  The other two will be 0.
-*/
-#if defined(SQLITE_OS_OTHER)
-#  if SQLITE_OS_OTHER==1
-#    undef SQLITE_OS_UNIX
-#    define SQLITE_OS_UNIX 0
-#    undef SQLITE_OS_WIN
-#    define SQLITE_OS_WIN 0
-#  else
-#    undef SQLITE_OS_OTHER
-#  endif
-#endif
-#if !defined(SQLITE_OS_UNIX) && !defined(SQLITE_OS_OTHER)
-#  define SQLITE_OS_OTHER 0
-#  ifndef SQLITE_OS_WIN
-#    if defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || \
-        defined(__MINGW32__) || defined(__BORLANDC__)
-#      define SQLITE_OS_WIN 1
-#      define SQLITE_OS_UNIX 0
-#    else
-#      define SQLITE_OS_WIN 0
-#      define SQLITE_OS_UNIX 1
-#    endif
-#  else
-#    define SQLITE_OS_UNIX 0
-#  endif
-#else
-#  ifndef SQLITE_OS_WIN
-#    define SQLITE_OS_WIN 0
-#  endif
-#endif
-
-#endif /* SQLITE_OS_SETUP_H */
-
-/************** End of os_setup.h ********************************************/
-/************** Continuing where we left off in os.h *************************/
-
-/* If the SET_FULLSYNC macro is not defined above, then make it
-** a no-op
-*/
-#ifndef SET_FULLSYNC
-# define SET_FULLSYNC(x,y)
-#endif
-
-/*
-** The default size of a disk sector
-*/
-#ifndef SQLITE_DEFAULT_SECTOR_SIZE
-# define SQLITE_DEFAULT_SECTOR_SIZE 4096
-#endif
-
-/*
-** Temporary files are named starting with this prefix followed by 16 random
-** alphanumeric characters, and no file extension. They are stored in the
-** OS's standard temporary file directory, and are deleted prior to exit.
-** If sqlite is being embedded in another program, you may wish to change the
-** prefix to reflect your program's name, so that if your program exits
-** prematurely, old temporary files can be easily identified. This can be done
-** using -DSQLITE_TEMP_FILE_PREFIX=myprefix_ on the compiler command line.
-**
-** 2006-10-31:  The default prefix used to be "sqlite_".  But then
-** Mcafee started using SQLite in their anti-virus product and it
-** started putting files with the "sqlite" name in the c:/temp folder.
-** This annoyed many windows users.  Those users would then do a 
-** Google search for "sqlite", find the telephone numbers of the
-** developers and call to wake them up at night and complain.
-** For this reason, the default name prefix is changed to be "sqlite" 
-** spelled backwards.  So the temp files are still identified, but
-** anybody smart enough to figure out the code is also likely smart
-** enough to know that calling the developer will not help get rid
-** of the file.
-*/
-#ifndef SQLITE_TEMP_FILE_PREFIX
-# define SQLITE_TEMP_FILE_PREFIX "etilqs_"
-#endif
-
-/*
-** The following values may be passed as the second argument to
-** tdsqlite3OsLock(). The various locks exhibit the following semantics:
-**
-** SHARED:    Any number of processes may hold a SHARED lock simultaneously.
-** RESERVED:  A single process may hold a RESERVED lock on a file at
-**            any time. Other processes may hold and obtain new SHARED locks.
-** PENDING:   A single process may hold a PENDING lock on a file at
-**            any one time. Existing SHARED locks may persist, but no new
-**            SHARED locks may be obtained by other processes.
-** EXCLUSIVE: An EXCLUSIVE lock precludes all other locks.
-**
-** PENDING_LOCK may not be passed directly to tdsqlite3OsLock(). Instead, a
-** process that requests an EXCLUSIVE lock may actually obtain a PENDING
-** lock. This can be upgraded to an EXCLUSIVE lock by a subsequent call to
-** tdsqlite3OsLock().
-*/
-#define NO_LOCK         0
-#define SHARED_LOCK     1
-#define RESERVED_LOCK   2
-#define PENDING_LOCK    3
-#define EXCLUSIVE_LOCK  4
-
-/*
-** File Locking Notes:  (Mostly about windows but also some info for Unix)
-**
-** We cannot use LockFileEx() or UnlockFileEx() on Win95/98/ME because
-** those functions are not available.  So we use only LockFile() and
-** UnlockFile().
-**
-** LockFile() prevents not just writing but also reading by other processes.
-** A SHARED_LOCK is obtained by locking a single randomly-chosen 
-** byte out of a specific range of bytes. The lock byte is obtained at 
-** random so two separate readers can probably access the file at the 
-** same time, unless they are unlucky and choose the same lock byte.
-** An EXCLUSIVE_LOCK is obtained by locking all bytes in the range.
-** There can only be one writer.  A RESERVED_LOCK is obtained by locking
-** a single byte of the file that is designated as the reserved lock byte.
-** A PENDING_LOCK is obtained by locking a designated byte different from
-** the RESERVED_LOCK byte.
-**
-** On WinNT/2K/XP systems, LockFileEx() and UnlockFileEx() are available,
-** which means we can use reader/writer locks.  When reader/writer locks
-** are used, the lock is placed on the same range of bytes that is used
-** for probabilistic locking in Win95/98/ME.  Hence, the locking scheme
-** will support two or more Win95 readers or two or more WinNT readers.
-** But a single Win95 reader will lock out all WinNT readers and a single
-** WinNT reader will lock out all other Win95 readers.
-**
-** The following #defines specify the range of bytes used for locking.
-** SHARED_SIZE is the number of bytes available in the pool from which
-** a random byte is selected for a shared lock.  The pool of bytes for
-** shared locks begins at SHARED_FIRST. 
-**
-** The same locking strategy and
-** byte ranges are used for Unix.  This leaves open the possibility of having
-** clients on win95, winNT, and unix all talking to the same shared file
-** and all locking correctly.  To do so would require that samba (or whatever
-** tool is being used for file sharing) implements locks correctly between
-** windows and unix.  I'm guessing that isn't likely to happen, but by
-** using the same locking range we are at least open to the possibility.
-**
-** Locking in windows is manditory.  For this reason, we cannot store
-** actual data in the bytes used for locking.  The pager never allocates
-** the pages involved in locking therefore.  SHARED_SIZE is selected so
-** that all locks will fit on a single page even at the minimum page size.
-** PENDING_BYTE defines the beginning of the locks.  By default PENDING_BYTE
-** is set high so that we don't have to allocate an unused page except
-** for very large databases.  But one should test the page skipping logic 
-** by setting PENDING_BYTE low and running the entire regression suite.
-**
-** Changing the value of PENDING_BYTE results in a subtly incompatible
-** file format.  Depending on how it is changed, you might not notice
-** the incompatibility right away, even running a full regression test.
-** The default location of PENDING_BYTE is the first byte past the
-** 1GB boundary.
-**
-*/
-#ifdef SQLITE_OMIT_WSD
-# define PENDING_BYTE     (0x40000000)
-#else
-# define PENDING_BYTE      tdsqlite3PendingByte
-#endif
-#define RESERVED_BYTE     (PENDING_BYTE+1)
-#define SHARED_FIRST      (PENDING_BYTE+2)
-#define SHARED_SIZE       510
-
-/*
-** Wrapper around OS specific tdsqlite3_os_init() function.
-*/
-SQLITE_PRIVATE int tdsqlite3OsInit(void);
-
-/* 
-** Functions for accessing tdsqlite3_file methods 
-*/
-SQLITE_PRIVATE void tdsqlite3OsClose(tdsqlite3_file*);
-SQLITE_PRIVATE int tdsqlite3OsRead(tdsqlite3_file*, void*, int amt, i64 offset);
-SQLITE_PRIVATE int tdsqlite3OsWrite(tdsqlite3_file*, const void*, int amt, i64 offset);
-SQLITE_PRIVATE int tdsqlite3OsTruncate(tdsqlite3_file*, i64 size);
-SQLITE_PRIVATE int tdsqlite3OsSync(tdsqlite3_file*, int);
-SQLITE_PRIVATE int tdsqlite3OsFileSize(tdsqlite3_file*, i64 *pSize);
-SQLITE_PRIVATE int tdsqlite3OsLock(tdsqlite3_file*, int);
-SQLITE_PRIVATE int tdsqlite3OsUnlock(tdsqlite3_file*, int);
-SQLITE_PRIVATE int tdsqlite3OsCheckReservedLock(tdsqlite3_file *id, int *pResOut);
-SQLITE_PRIVATE int tdsqlite3OsFileControl(tdsqlite3_file*,int,void*);
-SQLITE_PRIVATE void tdsqlite3OsFileControlHint(tdsqlite3_file*,int,void*);
-#define SQLITE_FCNTL_DB_UNCHANGED 0xca093fa0
-SQLITE_PRIVATE int tdsqlite3OsSectorSize(tdsqlite3_file *id);
-SQLITE_PRIVATE int tdsqlite3OsDeviceCharacteristics(tdsqlite3_file *id);
-#ifndef SQLITE_OMIT_WAL
-SQLITE_PRIVATE int tdsqlite3OsShmMap(tdsqlite3_file *,int,int,int,void volatile **);
-SQLITE_PRIVATE int tdsqlite3OsShmLock(tdsqlite3_file *id, int, int, int);
-SQLITE_PRIVATE void tdsqlite3OsShmBarrier(tdsqlite3_file *id);
-SQLITE_PRIVATE int tdsqlite3OsShmUnmap(tdsqlite3_file *id, int);
-#endif /* SQLITE_OMIT_WAL */
-SQLITE_PRIVATE int tdsqlite3OsFetch(tdsqlite3_file *id, i64, int, void **);
-SQLITE_PRIVATE int tdsqlite3OsUnfetch(tdsqlite3_file *, i64, void *);
-
-
-/* 
-** Functions for accessing tdsqlite3_vfs methods 
-*/
-SQLITE_PRIVATE int tdsqlite3OsOpen(tdsqlite3_vfs *, const char *, tdsqlite3_file*, int, int *);
-SQLITE_PRIVATE int tdsqlite3OsDelete(tdsqlite3_vfs *, const char *, int);
-SQLITE_PRIVATE int tdsqlite3OsAccess(tdsqlite3_vfs *, const char *, int, int *pResOut);
-SQLITE_PRIVATE int tdsqlite3OsFullPathname(tdsqlite3_vfs *, const char *, int, char *);
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-SQLITE_PRIVATE void *tdsqlite3OsDlOpen(tdsqlite3_vfs *, const char *);
-SQLITE_PRIVATE void tdsqlite3OsDlError(tdsqlite3_vfs *, int, char *);
-SQLITE_PRIVATE void (*tdsqlite3OsDlSym(tdsqlite3_vfs *, void *, const char *))(void);
-SQLITE_PRIVATE void tdsqlite3OsDlClose(tdsqlite3_vfs *, void *);
-#endif /* SQLITE_OMIT_LOAD_EXTENSION */
-SQLITE_PRIVATE int tdsqlite3OsRandomness(tdsqlite3_vfs *, int, char *);
-SQLITE_PRIVATE int tdsqlite3OsSleep(tdsqlite3_vfs *, int);
-SQLITE_PRIVATE int tdsqlite3OsGetLastError(tdsqlite3_vfs*);
-SQLITE_PRIVATE int tdsqlite3OsCurrentTimeInt64(tdsqlite3_vfs *, tdsqlite3_int64*);
-
-/*
-** Convenience functions for opening and closing files using 
-** tdsqlite3_malloc() to obtain space for the file-handle structure.
-*/
-SQLITE_PRIVATE int tdsqlite3OsOpenMalloc(tdsqlite3_vfs *, const char *, tdsqlite3_file **, int,int*);
-SQLITE_PRIVATE void tdsqlite3OsCloseFree(tdsqlite3_file *);
-
-#endif /* _SQLITE_OS_H_ */
-
-/************** End of os.h **************************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-/************** Include mutex.h in the middle of sqliteInt.h *****************/
-/************** Begin file mutex.h *******************************************/
-/*
-** 2007 August 28
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains the common header for all mutex implementations.
-** The sqliteInt.h header #includes this file so that it is available
-** to all source files.  We break it out in an effort to keep the code
-** better organized.
-**
-** NOTE:  source files should *not* #include this header file directly.
-** Source files should #include the sqliteInt.h file and let that file
-** include this one indirectly.
-*/
-
-
-/*
-** Figure out what version of the code to use.  The choices are
-**
-**   SQLITE_MUTEX_OMIT         No mutex logic.  Not even stubs.  The
-**                             mutexes implementation cannot be overridden
-**                             at start-time.
-**
-**   SQLITE_MUTEX_NOOP         For single-threaded applications.  No
-**                             mutual exclusion is provided.  But this
-**                             implementation can be overridden at
-**                             start-time.
-**
-**   SQLITE_MUTEX_PTHREADS     For multi-threaded applications on Unix.
-**
-**   SQLITE_MUTEX_W32          For multi-threaded applications on Win32.
-*/
-#if !SQLITE_THREADSAFE
-# define SQLITE_MUTEX_OMIT
-#endif
-#if SQLITE_THREADSAFE && !defined(SQLITE_MUTEX_NOOP)
-#  if SQLITE_OS_UNIX
-#    define SQLITE_MUTEX_PTHREADS
-#  elif SQLITE_OS_WIN
-#    define SQLITE_MUTEX_W32
-#  else
-#    define SQLITE_MUTEX_NOOP
-#  endif
-#endif
-
-#ifdef SQLITE_MUTEX_OMIT
-/*
-** If this is a no-op implementation, implement everything as macros.
-*/
-#define tdsqlite3_mutex_alloc(X)    ((tdsqlite3_mutex*)8)
-#define tdsqlite3_mutex_free(X)
-#define tdsqlite3_mutex_enter(X)    
-#define tdsqlite3_mutex_try(X)      SQLITE_OK
-#define tdsqlite3_mutex_leave(X)    
-#define tdsqlite3_mutex_held(X)     ((void)(X),1)
-#define tdsqlite3_mutex_notheld(X)  ((void)(X),1)
-#define tdsqlite3MutexAlloc(X)      ((tdsqlite3_mutex*)8)
-#define tdsqlite3MutexInit()        SQLITE_OK
-#define tdsqlite3MutexEnd()
-#define MUTEX_LOGIC(X)
-#else
-#define MUTEX_LOGIC(X)            X
-SQLITE_API int tdsqlite3_mutex_held(tdsqlite3_mutex*);
-#endif /* defined(SQLITE_MUTEX_OMIT) */
-
-/************** End of mutex.h ***********************************************/
-/************** Continuing where we left off in sqliteInt.h ******************/
-
-/* The SQLITE_EXTRA_DURABLE compile-time option used to set the default
-** synchronous setting to EXTRA.  It is no longer supported.
-*/
-#ifdef SQLITE_EXTRA_DURABLE
-# warning Use SQLITE_DEFAULT_SYNCHRONOUS=3 instead of SQLITE_EXTRA_DURABLE
-# define SQLITE_DEFAULT_SYNCHRONOUS 3
-#endif
-
-/*
-** Default synchronous levels.
-**
-** Note that (for historcal reasons) the PAGER_SYNCHRONOUS_* macros differ
-** from the SQLITE_DEFAULT_SYNCHRONOUS value by 1.
-**
-**           PAGER_SYNCHRONOUS       DEFAULT_SYNCHRONOUS
-**   OFF           1                         0
-**   NORMAL        2                         1
-**   FULL          3                         2
-**   EXTRA         4                         3
-**
-** The "PRAGMA synchronous" statement also uses the zero-based numbers.
-** In other words, the zero-based numbers are used for all external interfaces
-** and the one-based values are used internally.
-*/
-#ifndef SQLITE_DEFAULT_SYNCHRONOUS
-# define SQLITE_DEFAULT_SYNCHRONOUS 2
-#endif
-#ifndef SQLITE_DEFAULT_WAL_SYNCHRONOUS
-# define SQLITE_DEFAULT_WAL_SYNCHRONOUS SQLITE_DEFAULT_SYNCHRONOUS
-#endif
-
-/*
-** Each database file to be accessed by the system is an instance
-** of the following structure.  There are normally two of these structures
-** in the sqlite.aDb[] array.  aDb[0] is the main database file and
-** aDb[1] is the database file used to hold temporary tables.  Additional
-** databases may be attached.
-*/
-struct Db {
-  char *zDbSName;      /* Name of this database. (schema name, not filename) */
-  Btree *pBt;          /* The B*Tree structure for this database file */
-  u8 safety_level;     /* How aggressive at syncing data to disk */
-  u8 bSyncSet;         /* True if "PRAGMA synchronous=N" has been run */
-  Schema *pSchema;     /* Pointer to database schema (possibly shared) */
-};
-
-/*
-** An instance of the following structure stores a database schema.
-**
-** Most Schema objects are associated with a Btree.  The exception is
-** the Schema for the TEMP databaes (sqlite3.aDb[1]) which is free-standing.
-** In shared cache mode, a single Schema object can be shared by multiple
-** Btrees that refer to the same underlying BtShared object.
-**
-** Schema objects are automatically deallocated when the last Btree that
-** references them is destroyed.   The TEMP Schema is manually freed by
-** tdsqlite3_close().
-*
-** A thread must be holding a mutex on the corresponding Btree in order
-** to access Schema content.  This implies that the thread must also be
-** holding a mutex on the tdsqlite3 connection pointer that owns the Btree.
-** For a TEMP Schema, only the connection mutex is required.
-*/
-struct Schema {
-  int schema_cookie;   /* Database schema version number for this file */
-  int iGeneration;     /* Generation counter.  Incremented with each change */
-  Hash tblHash;        /* All tables indexed by name */
-  Hash idxHash;        /* All (named) indices indexed by name */
-  Hash trigHash;       /* All triggers indexed by name */
-  Hash fkeyHash;       /* All foreign keys by referenced table name */
-  Table *pSeqTab;      /* The sqlite_sequence table used by AUTOINCREMENT */
-  u8 file_format;      /* Schema format version for this file */
-  u8 enc;              /* Text encoding used by this database */
-  u16 schemaFlags;     /* Flags associated with this schema */
-  int cache_size;      /* Number of pages to use in the cache */
-};
-
-/*
-** These macros can be used to test, set, or clear bits in the
-** Db.pSchema->flags field.
-*/
-#define DbHasProperty(D,I,P)     (((D)->aDb[I].pSchema->schemaFlags&(P))==(P))
-#define DbHasAnyProperty(D,I,P)  (((D)->aDb[I].pSchema->schemaFlags&(P))!=0)
-#define DbSetProperty(D,I,P)     (D)->aDb[I].pSchema->schemaFlags|=(P)
-#define DbClearProperty(D,I,P)   (D)->aDb[I].pSchema->schemaFlags&=~(P)
-
-/*
-** Allowed values for the DB.pSchema->flags field.
-**
-** The DB_SchemaLoaded flag is set after the database schema has been
-** read into internal hash tables.
-**
-** DB_UnresetViews means that one or more views have column names that
-** have been filled out.  If the schema changes, these column names might
-** changes and so the view will need to be reset.
-*/
-#define DB_SchemaLoaded    0x0001  /* The schema has been loaded */
-#define DB_UnresetViews    0x0002  /* Some views have defined column names */
-#define DB_Empty           0x0004  /* The file is empty (length 0 bytes) */
-#define DB_ResetWanted     0x0008  /* Reset the schema when nSchemaLock==0 */
-
-/*
-** The number of different kinds of things that can be limited
-** using the tdsqlite3_limit() interface.
-*/
-#define SQLITE_N_LIMIT (SQLITE_LIMIT_WORKER_THREADS+1)
-
-/*
-** Lookaside malloc is a set of fixed-size buffers that can be used
-** to satisfy small transient memory allocation requests for objects
-** associated with a particular database connection.  The use of
-** lookaside malloc provides a significant performance enhancement
-** (approx 10%) by avoiding numerous malloc/free requests while parsing
-** SQL statements.
-**
-** The Lookaside structure holds configuration information about the
-** lookaside malloc subsystem.  Each available memory allocation in
-** the lookaside subsystem is stored on a linked list of LookasideSlot
-** objects.
-**
-** Lookaside allocations are only allowed for objects that are associated
-** with a particular database connection.  Hence, schema information cannot
-** be stored in lookaside because in shared cache mode the schema information
-** is shared by multiple database connections.  Therefore, while parsing
-** schema information, the Lookaside.bEnabled flag is cleared so that
-** lookaside allocations are not used to construct the schema objects.
-**
-** New lookaside allocations are only allowed if bDisable==0.  When
-** bDisable is greater than zero, sz is set to zero which effectively
-** disables lookaside without adding a new test for the bDisable flag
-** in a performance-critical path.  sz should be set by to szTrue whenever
-** bDisable changes back to zero.
-**
-** Lookaside buffers are initially held on the pInit list.  As they are
-** used and freed, they are added back to the pFree list.  New allocations
-** come off of pFree first, then pInit as a fallback.  This dual-list
-** allows use to compute a high-water mark - the maximum number of allocations
-** outstanding at any point in the past - by subtracting the number of
-** allocations on the pInit list from the total number of allocations.
-**
-** Enhancement on 2019-12-12:  Two-size-lookaside
-** The default lookaside configuration is 100 slots of 1200 bytes each.
-** The larger slot sizes are important for performance, but they waste
-** a lot of space, as most lookaside allocations are less than 128 bytes.
-** The two-size-lookaside enhancement breaks up the lookaside allocation
-** into two pools:  One of 128-byte slots and the other of the default size
-** (1200-byte) slots.   Allocations are filled from the small-pool first,
-** failing over to the full-size pool if that does not work.  Thus more
-** lookaside slots are available while also using less memory.
-** This enhancement can be omitted by compiling with
-** SQLITE_OMIT_TWOSIZE_LOOKASIDE.
-*/
-struct Lookaside {
-  u32 bDisable;           /* Only operate the lookaside when zero */
-  u16 sz;                 /* Size of each buffer in bytes */
-  u16 szTrue;             /* True value of sz, even if disabled */
-  u8 bMalloced;           /* True if pStart obtained from tdsqlite3_malloc() */
-  u32 nSlot;              /* Number of lookaside slots allocated */
-  u32 anStat[3];          /* 0: hits.  1: size misses.  2: full misses */
-  LookasideSlot *pInit;   /* List of buffers not previously used */
-  LookasideSlot *pFree;   /* List of available buffers */
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-  LookasideSlot *pSmallInit; /* List of small buffers not prediously used */
-  LookasideSlot *pSmallFree; /* List of available small buffers */
-  void *pMiddle;          /* First byte past end of full-size buffers and
-                          ** the first byte of LOOKASIDE_SMALL buffers */
-#endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */
-  void *pStart;           /* First byte of available memory space */
-  void *pEnd;             /* First byte past end of available space */
-};
-struct LookasideSlot {
-  LookasideSlot *pNext;    /* Next buffer in the list of free buffers */
-};
-
-#define DisableLookaside  db->lookaside.bDisable++;db->lookaside.sz=0
-#define EnableLookaside   db->lookaside.bDisable--;\
-   db->lookaside.sz=db->lookaside.bDisable?0:db->lookaside.szTrue
-
-/* Size of the smaller allocations in two-size lookside */
-#ifdef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-#  define LOOKASIDE_SMALL           0
-#else
-#  define LOOKASIDE_SMALL         128
-#endif
-
-/*
-** A hash table for built-in function definitions.  (Application-defined
-** functions use a regular table table from hash.h.)
-**
-** Hash each FuncDef structure into one of the FuncDefHash.a[] slots.
-** Collisions are on the FuncDef.u.pHash chain.  Use the SQLITE_FUNC_HASH()
-** macro to compute a hash on the function name.
-*/
-#define SQLITE_FUNC_HASH_SZ 23
-struct FuncDefHash {
-  FuncDef *a[SQLITE_FUNC_HASH_SZ];       /* Hash table for functions */
-};
-#define SQLITE_FUNC_HASH(C,L) (((C)+(L))%SQLITE_FUNC_HASH_SZ)
-
-#ifdef SQLITE_USER_AUTHENTICATION
-/*
-** Information held in the "tdsqlite3" database connection object and used
-** to manage user authentication.
-*/
-typedef struct tdsqlite3_userauth tdsqlite3_userauth;
-struct tdsqlite3_userauth {
-  u8 authLevel;                 /* Current authentication level */
-  int nAuthPW;                  /* Size of the zAuthPW in bytes */
-  char *zAuthPW;                /* Password used to authenticate */
-  char *zAuthUser;              /* User name used to authenticate */
-};
-
-/* Allowed values for tdsqlite3_userauth.authLevel */
-#define UAUTH_Unknown     0     /* Authentication not yet checked */
-#define UAUTH_Fail        1     /* User authentication failed */
-#define UAUTH_User        2     /* Authenticated as a normal user */
-#define UAUTH_Admin       3     /* Authenticated as an administrator */
-
-/* Functions used only by user authorization logic */
-SQLITE_PRIVATE int tdsqlite3UserAuthTable(const char*);
-SQLITE_PRIVATE int tdsqlite3UserAuthCheckLogin(tdsqlite3*,const char*,u8*);
-SQLITE_PRIVATE void tdsqlite3UserAuthInit(tdsqlite3*);
-SQLITE_PRIVATE void tdsqlite3CryptFunc(tdsqlite3_context*,int,tdsqlite3_value**);
-
-#endif /* SQLITE_USER_AUTHENTICATION */
-
-/*
-** typedef for the authorization callback function.
-*/
-#ifdef SQLITE_USER_AUTHENTICATION
-  typedef int (*tdsqlite3_xauth)(void*,int,const char*,const char*,const char*,
-                               const char*, const char*);
-#else
-  typedef int (*tdsqlite3_xauth)(void*,int,const char*,const char*,const char*,
-                               const char*);
-#endif
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/* This is an extra SQLITE_TRACE macro that indicates "legacy" tracing
-** in the style of tdsqlite3_trace()
-*/
-#define SQLITE_TRACE_LEGACY          0x40     /* Use the legacy xTrace */
-#define SQLITE_TRACE_XPROFILE        0x80     /* Use the legacy xProfile */
-#else
-#define SQLITE_TRACE_LEGACY          0
-#define SQLITE_TRACE_XPROFILE        0
-#endif /* SQLITE_OMIT_DEPRECATED */
-#define SQLITE_TRACE_NONLEGACY_MASK  0x0f     /* Normal flags */
-
-
-/*
-** Each database connection is an instance of the following structure.
-*/
-struct tdsqlite3 {
-  tdsqlite3_vfs *pVfs;            /* OS Interface */
-  struct Vdbe *pVdbe;           /* List of active virtual machines */
-  CollSeq *pDfltColl;           /* The default collating sequence (BINARY) */
-  tdsqlite3_mutex *mutex;         /* Connection mutex */
-  Db *aDb;                      /* All backends */
-  int nDb;                      /* Number of backends currently in use */
-  u32 mDbFlags;                 /* flags recording internal state */
-  u64 flags;                    /* flags settable by pragmas. See below */
-  i64 lastRowid;                /* ROWID of most recent insert (see above) */
-  i64 szMmap;                   /* Default mmap_size setting */
-  u32 nSchemaLock;              /* Do not reset the schema when non-zero */
-  unsigned int openFlags;       /* Flags passed to tdsqlite3_vfs.xOpen() */
-  int errCode;                  /* Most recent error code (SQLITE_*) */
-  int errMask;                  /* & result codes with this before returning */
-  int iSysErrno;                /* Errno value from last system error */
-  u16 dbOptFlags;               /* Flags to enable/disable optimizations */
-  u8 enc;                       /* Text encoding */
-  u8 autoCommit;                /* The auto-commit flag. */
-  u8 temp_store;                /* 1: file 2: memory 0: default */
-  u8 mallocFailed;              /* True if we have seen a malloc failure */
-  u8 bBenignMalloc;             /* Do not require OOMs if true */
-  u8 dfltLockMode;              /* Default locking-mode for attached dbs */
-  signed char nextAutovac;      /* Autovac setting after VACUUM if >=0 */
-  u8 suppressErr;               /* Do not issue error messages if true */
-  u8 vtabOnConflict;            /* Value to return for s3_vtab_on_conflict() */
-  u8 isTransactionSavepoint;    /* True if the outermost savepoint is a TS */
-  u8 mTrace;                    /* zero or more SQLITE_TRACE flags */
-  u8 noSharedCache;             /* True if no shared-cache backends */
-  u8 nSqlExec;                  /* Number of pending OP_SqlExec opcodes */
-  int nextPagesize;             /* Pagesize after VACUUM if >0 */
-  u32 magic;                    /* Magic number for detect library misuse */
-  int nChange;                  /* Value returned by tdsqlite3_changes() */
-  int nTotalChange;             /* Value returned by tdsqlite3_total_changes() */
-  int aLimit[SQLITE_N_LIMIT];   /* Limits */
-  int nMaxSorterMmap;           /* Maximum size of regions mapped by sorter */
-  struct tdsqlite3InitInfo {      /* Information used during initialization */
-    int newTnum;                /* Rootpage of table being initialized */
-    u8 iDb;                     /* Which db file is being initialized */
-    u8 busy;                    /* TRUE if currently initializing */
-    unsigned orphanTrigger : 1; /* Last statement is orphaned TEMP trigger */
-    unsigned imposterTable : 1; /* Building an imposter table */
-    unsigned reopenMemdb : 1;   /* ATTACH is really a reopen using MemDB */
-    char **azInit;              /* "type", "name", and "tbl_name" columns */
-  } init;
-  int nVdbeActive;              /* Number of VDBEs currently running */
-  int nVdbeRead;                /* Number of active VDBEs that read or write */
-  int nVdbeWrite;               /* Number of active VDBEs that read and write */
-  int nVdbeExec;                /* Number of nested calls to VdbeExec() */
-  int nVDestroy;                /* Number of active OP_VDestroy operations */
-  int nExtension;               /* Number of loaded extensions */
-  void **aExtension;            /* Array of shared library handles */
-  int (*xTrace)(u32,void*,void*,void*);     /* Trace function */
-  void *pTraceArg;                          /* Argument to the trace function */
-#ifndef SQLITE_OMIT_DEPRECATED
-  void (*xProfile)(void*,const char*,u64);  /* Profiling function */
-  void *pProfileArg;                        /* Argument to profile function */
-#endif
-  void *pCommitArg;                 /* Argument to xCommitCallback() */
-  int (*xCommitCallback)(void*);    /* Invoked at every commit. */
-  void *pRollbackArg;               /* Argument to xRollbackCallback() */
-  void (*xRollbackCallback)(void*); /* Invoked at every commit. */
-  void *pUpdateArg;
-  void (*xUpdateCallback)(void*,int, const char*,const char*,sqlite_int64);
-  Parse *pParse;                /* Current parse */
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-  void *pPreUpdateArg;          /* First argument to xPreUpdateCallback */
-  void (*xPreUpdateCallback)(   /* Registered using tdsqlite3_preupdate_hook() */
-    void*,tdsqlite3*,int,char const*,char const*,tdsqlite3_int64,tdsqlite3_int64
-  );
-  PreUpdate *pPreUpdate;        /* Context for active pre-update callback */
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-#ifndef SQLITE_OMIT_WAL
-  int (*xWalCallback)(void *, tdsqlite3 *, const char *, int);
-  void *pWalArg;
-#endif
-  void(*xCollNeeded)(void*,tdsqlite3*,int eTextRep,const char*);
-  void(*xCollNeeded16)(void*,tdsqlite3*,int eTextRep,const void*);
-  void *pCollNeededArg;
-  tdsqlite3_value *pErr;          /* Most recent error message */
-  union {
-    volatile int isInterrupted; /* True if tdsqlite3_interrupt has been called */
-    double notUsed1;            /* Spacer */
-  } u1;
-  Lookaside lookaside;          /* Lookaside malloc configuration */
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  tdsqlite3_xauth xAuth;          /* Access authorization function */
-  void *pAuthArg;               /* 1st argument to the access auth function */
-#endif
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
-  int (*xProgress)(void *);     /* The progress callback */
-  void *pProgressArg;           /* Argument to the progress callback */
-  unsigned nProgressOps;        /* Number of opcodes for progress callback */
-#endif
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  int nVTrans;                  /* Allocated size of aVTrans */
-  Hash aModule;                 /* populated by tdsqlite3_create_module() */
-  VtabCtx *pVtabCtx;            /* Context for active vtab connect/create */
-  VTable **aVTrans;             /* Virtual tables with open transactions */
-  VTable *pDisconnect;          /* Disconnect these in next tdsqlite3_prepare() */
-#endif
-  Hash aFunc;                   /* Hash table of connection functions */
-  Hash aCollSeq;                /* All collating sequences */
-  BusyHandler busyHandler;      /* Busy callback */
-  Db aDbStatic[2];              /* Static space for the 2 default backends */
-  Savepoint *pSavepoint;        /* List of active savepoints */
-  int busyTimeout;              /* Busy handler timeout, in msec */
-  int nSavepoint;               /* Number of non-transaction savepoints */
-  int nStatement;               /* Number of nested statement-transactions  */
-  i64 nDeferredCons;            /* Net deferred constraints this transaction. */
-  i64 nDeferredImmCons;         /* Net deferred immediate constraints */
-  int *pnBytesFreed;            /* If not NULL, increment this in DbFree() */
-#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
-  /* The following variables are all protected by the STATIC_MASTER
-  ** mutex, not by sqlite3.mutex. They are used by code in notify.c.
-  **
-  ** When X.pUnlockConnection==Y, that means that X is waiting for Y to
-  ** unlock so that it can proceed.
-  **
-  ** When X.pBlockingConnection==Y, that means that something that X tried
-  ** tried to do recently failed with an SQLITE_LOCKED error due to locks
-  ** held by Y.
-  */
-  tdsqlite3 *pBlockingConnection; /* Connection that caused SQLITE_LOCKED */
-  tdsqlite3 *pUnlockConnection;           /* Connection to watch for unlock */
-  void *pUnlockArg;                     /* Argument to xUnlockNotify */
-  void (*xUnlockNotify)(void **, int);  /* Unlock notify callback */
-  tdsqlite3 *pNextBlocked;        /* Next in list of all blocked connections */
-#endif
-#ifdef SQLITE_USER_AUTHENTICATION
-  tdsqlite3_userauth auth;        /* User authentication information */
-#endif
-};
-
-/*
-** A macro to discover the encoding of a database.
-*/
-#define SCHEMA_ENC(db) ((db)->aDb[0].pSchema->enc)
-#define ENC(db)        ((db)->enc)
-
-/*
-** A u64 constant where the lower 32 bits are all zeros.  Only the
-** upper 32 bits are included in the argument.  Necessary because some
-** C-compilers still do not accept LL integer literals.
-*/
-#define HI(X)  ((u64)(X)<<32)
-
-/*
-** Possible values for the sqlite3.flags.
-**
-** Value constraints (enforced via assert()):
-**      SQLITE_FullFSync     == PAGER_FULLFSYNC
-**      SQLITE_CkptFullFSync == PAGER_CKPT_FULLFSYNC
-**      SQLITE_CacheSpill    == PAGER_CACHE_SPILL
-*/
-#define SQLITE_WriteSchema    0x00000001  /* OK to update SQLITE_MASTER */
-#define SQLITE_LegacyFileFmt  0x00000002  /* Create new databases in format 1 */
-#define SQLITE_FullColNames   0x00000004  /* Show full column names on SELECT */
-#define SQLITE_FullFSync      0x00000008  /* Use full fsync on the backend */
-#define SQLITE_CkptFullFSync  0x00000010  /* Use full fsync for checkpoint */
-#define SQLITE_CacheSpill     0x00000020  /* OK to spill pager cache */
-#define SQLITE_ShortColNames  0x00000040  /* Show short columns names */
-#define SQLITE_TrustedSchema  0x00000080  /* Allow unsafe functions and
-                                          ** vtabs in the schema definition */
-#define SQLITE_NullCallback   0x00000100  /* Invoke the callback once if the */
-                                          /*   result set is empty */
-#define SQLITE_IgnoreChecks   0x00000200  /* Do not enforce check constraints */
-#define SQLITE_ReadUncommit   0x00000400  /* READ UNCOMMITTED in shared-cache */
-#define SQLITE_NoCkptOnClose  0x00000800  /* No checkpoint on close()/DETACH */
-#define SQLITE_ReverseOrder   0x00001000  /* Reverse unordered SELECTs */
-#define SQLITE_RecTriggers    0x00002000  /* Enable recursive triggers */
-#define SQLITE_ForeignKeys    0x00004000  /* Enforce foreign key constraints  */
-#define SQLITE_AutoIndex      0x00008000  /* Enable automatic indexes */
-#define SQLITE_LoadExtension  0x00010000  /* Enable load_extension */
-#define SQLITE_LoadExtFunc    0x00020000  /* Enable load_extension() SQL func */
-#define SQLITE_EnableTrigger  0x00040000  /* True to enable triggers */
-#define SQLITE_DeferFKs       0x00080000  /* Defer all FK constraints */
-#define SQLITE_QueryOnly      0x00100000  /* Disable database changes */
-#define SQLITE_CellSizeCk     0x00200000  /* Check btree cell sizes on load */
-#define SQLITE_Fts3Tokenizer  0x00400000  /* Enable fts3_tokenizer(2) */
-#define SQLITE_EnableQPSG     0x00800000  /* Query Planner Stability Guarantee*/
-#define SQLITE_TriggerEQP     0x01000000  /* Show trigger EXPLAIN QUERY PLAN */
-#define SQLITE_ResetDatabase  0x02000000  /* Reset the database */
-#define SQLITE_LegacyAlter    0x04000000  /* Legacy ALTER TABLE behaviour */
-#define SQLITE_NoSchemaError  0x08000000  /* Do not report schema parse errors*/
-#define SQLITE_Defensive      0x10000000  /* Input SQL is likely hostile */
-#define SQLITE_DqsDDL         0x20000000  /* dbl-quoted strings allowed in DDL*/
-#define SQLITE_DqsDML         0x40000000  /* dbl-quoted strings allowed in DML*/
-#define SQLITE_EnableView     0x80000000  /* Enable the use of views */
-#define SQLITE_CountRows      HI(0x00001) /* Count rows changed by INSERT, */
-                                          /*   DELETE, or UPDATE and return */
-                                          /*   the count using a callback. */
-
-/* Flags used only if debugging */
-#ifdef SQLITE_DEBUG
-#define SQLITE_SqlTrace       HI(0x0100000) /* Debug print SQL as it executes */
-#define SQLITE_VdbeListing    HI(0x0200000) /* Debug listings of VDBE progs */
-#define SQLITE_VdbeTrace      HI(0x0400000) /* True to trace VDBE execution */
-#define SQLITE_VdbeAddopTrace HI(0x0800000) /* Trace tdsqlite3VdbeAddOp() calls */
-#define SQLITE_VdbeEQP        HI(0x1000000) /* Debug EXPLAIN QUERY PLAN */
-#define SQLITE_ParserTrace    HI(0x2000000) /* PRAGMA parser_trace=ON */
-#endif
-
-/*
-** Allowed values for sqlite3.mDbFlags
-*/
-#define DBFLAG_SchemaChange   0x0001  /* Uncommitted Hash table changes */
-#define DBFLAG_PreferBuiltin  0x0002  /* Preference to built-in funcs */
-#define DBFLAG_Vacuum         0x0004  /* Currently in a VACUUM */
-#define DBFLAG_VacuumInto     0x0008  /* Currently running VACUUM INTO */
-#define DBFLAG_SchemaKnownOk  0x0010  /* Schema is known to be valid */
-#define DBFLAG_InternalFunc   0x0020  /* Allow use of internal functions */
-
-/*
-** Bits of the sqlite3.dbOptFlags field that are used by the
-** tdsqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS,...) interface to
-** selectively disable various optimizations.
-*/
-#define SQLITE_QueryFlattener 0x0001   /* Query flattening */
-#define SQLITE_WindowFunc     0x0002   /* Use xInverse for window functions */
-#define SQLITE_GroupByOrder   0x0004   /* GROUPBY cover of ORDERBY */
-#define SQLITE_FactorOutConst 0x0008   /* Constant factoring */
-#define SQLITE_DistinctOpt    0x0010   /* DISTINCT using indexes */
-#define SQLITE_CoverIdxScan   0x0020   /* Covering index scans */
-#define SQLITE_OrderByIdxJoin 0x0040   /* ORDER BY of joins via index */
-#define SQLITE_Transitive     0x0080   /* Transitive constraints */
-#define SQLITE_OmitNoopJoin   0x0100   /* Omit unused tables in joins */
-#define SQLITE_CountOfView    0x0200   /* The count-of-view optimization */
-#define SQLITE_CursorHints    0x0400   /* Add OP_CursorHint opcodes */
-#define SQLITE_Stat4          0x0800   /* Use STAT4 data */
-   /* TH3 expects the Stat4   ^^^^^^ value to be 0x0800.  Don't change it */
-#define SQLITE_PushDown       0x1000   /* The push-down optimization */
-#define SQLITE_SimplifyJoin   0x2000   /* Convert LEFT JOIN to JOIN */
-#define SQLITE_SkipScan       0x4000   /* Skip-scans */
-#define SQLITE_PropagateConst 0x8000   /* The constant propagation opt */
-#define SQLITE_AllOpts        0xffff   /* All optimizations */
-
-/*
-** Macros for testing whether or not optimizations are enabled or disabled.
-*/
-#define OptimizationDisabled(db, mask)  (((db)->dbOptFlags&(mask))!=0)
-#define OptimizationEnabled(db, mask)   (((db)->dbOptFlags&(mask))==0)
-
-/*
-** Return true if it OK to factor constant expressions into the initialization
-** code. The argument is a Parse object for the code generator.
-*/
-#define ConstFactorOk(P) ((P)->okConstFactor)
-
-/*
-** Possible values for the sqlite.magic field.
-** The numbers are obtained at random and have no special meaning, other
-** than being distinct from one another.
-*/
-#define SQLITE_MAGIC_OPEN     0xa029a697  /* Database is open */
-#define SQLITE_MAGIC_CLOSED   0x9f3c2d33  /* Database is closed */
-#define SQLITE_MAGIC_SICK     0x4b771290  /* Error and awaiting close */
-#define SQLITE_MAGIC_BUSY     0xf03b7906  /* Database currently in use */
-#define SQLITE_MAGIC_ERROR    0xb5357930  /* An SQLITE_MISUSE error occurred */
-#define SQLITE_MAGIC_ZOMBIE   0x64cffc7f  /* Close with last statement close */
-
-/*
-** Each SQL function is defined by an instance of the following
-** structure.  For global built-in functions (ex: substr(), max(), count())
-** a pointer to this structure is held in the tdsqlite3BuiltinFunctions object.
-** For per-connection application-defined functions, a pointer to this
-** structure is held in the db->aHash hash table.
-**
-** The u.pHash field is used by the global built-ins.  The u.pDestructor
-** field is used by per-connection app-def functions.
-*/
-struct FuncDef {
-  i8 nArg;             /* Number of arguments.  -1 means unlimited */
-  u32 funcFlags;       /* Some combination of SQLITE_FUNC_* */
-  void *pUserData;     /* User data parameter */
-  FuncDef *pNext;      /* Next function with same name */
-  void (*xSFunc)(tdsqlite3_context*,int,tdsqlite3_value**); /* func or agg-step */
-  void (*xFinalize)(tdsqlite3_context*);                  /* Agg finalizer */
-  void (*xValue)(tdsqlite3_context*);                     /* Current agg value */
-  void (*xInverse)(tdsqlite3_context*,int,tdsqlite3_value**); /* inverse agg-step */
-  const char *zName;   /* SQL name of the function. */
-  union {
-    FuncDef *pHash;      /* Next with a different name but the same hash */
-    FuncDestructor *pDestructor;   /* Reference counted destructor function */
-  } u;
-};
-
-/*
-** This structure encapsulates a user-function destructor callback (as
-** configured using create_function_v2()) and a reference counter. When
-** create_function_v2() is called to create a function with a destructor,
-** a single object of this type is allocated. FuncDestructor.nRef is set to
-** the number of FuncDef objects created (either 1 or 3, depending on whether
-** or not the specified encoding is SQLITE_ANY). The FuncDef.pDestructor
-** member of each of the new FuncDef objects is set to point to the allocated
-** FuncDestructor.
-**
-** Thereafter, when one of the FuncDef objects is deleted, the reference
-** count on this object is decremented. When it reaches 0, the destructor
-** is invoked and the FuncDestructor structure freed.
-*/
-struct FuncDestructor {
-  int nRef;
-  void (*xDestroy)(void *);
-  void *pUserData;
-};
-
-/*
-** Possible values for FuncDef.flags.  Note that the _LENGTH and _TYPEOF
-** values must correspond to OPFLAG_LENGTHARG and OPFLAG_TYPEOFARG.  And
-** SQLITE_FUNC_CONSTANT must be the same as SQLITE_DETERMINISTIC.  There
-** are assert() statements in the code to verify this.
-**
-** Value constraints (enforced via assert()):
-**     SQLITE_FUNC_MINMAX    ==  NC_MinMaxAgg      == SF_MinMaxAgg
-**     SQLITE_FUNC_LENGTH    ==  OPFLAG_LENGTHARG
-**     SQLITE_FUNC_TYPEOF    ==  OPFLAG_TYPEOFARG
-**     SQLITE_FUNC_CONSTANT  ==  SQLITE_DETERMINISTIC from the API
-**     SQLITE_FUNC_DIRECT    ==  SQLITE_DIRECTONLY from the API
-**     SQLITE_FUNC_UNSAFE    ==  SQLITE_INNOCUOUS
-**     SQLITE_FUNC_ENCMASK   depends on SQLITE_UTF* macros in the API
-*/
-#define SQLITE_FUNC_ENCMASK  0x0003 /* SQLITE_UTF8, SQLITE_UTF16BE or UTF16LE */
-#define SQLITE_FUNC_LIKE     0x0004 /* Candidate for the LIKE optimization */
-#define SQLITE_FUNC_CASE     0x0008 /* Case-sensitive LIKE-type function */
-#define SQLITE_FUNC_EPHEM    0x0010 /* Ephemeral.  Delete with VDBE */
-#define SQLITE_FUNC_NEEDCOLL 0x0020 /* tdsqlite3GetFuncCollSeq() might be called*/
-#define SQLITE_FUNC_LENGTH   0x0040 /* Built-in length() function */
-#define SQLITE_FUNC_TYPEOF   0x0080 /* Built-in typeof() function */
-#define SQLITE_FUNC_COUNT    0x0100 /* Built-in count(*) aggregate */
-#define SQLITE_FUNC_COALESCE 0x0200 /* Built-in coalesce() or ifnull() */
-#define SQLITE_FUNC_UNLIKELY 0x0400 /* Built-in unlikely() function */
-#define SQLITE_FUNC_CONSTANT 0x0800 /* Constant inputs give a constant output */
-#define SQLITE_FUNC_MINMAX   0x1000 /* True for min() and max() aggregates */
-#define SQLITE_FUNC_SLOCHNG  0x2000 /* "Slow Change". Value constant during a
-                                    ** single query - might change over time */
-#define SQLITE_FUNC_TEST     0x4000 /* Built-in testing functions */
-#define SQLITE_FUNC_OFFSET   0x8000 /* Built-in sqlite_offset() function */
-#define SQLITE_FUNC_WINDOW   0x00010000 /* Built-in window-only function */
-#define SQLITE_FUNC_INTERNAL 0x00040000 /* For use by NestedParse() only */
-#define SQLITE_FUNC_DIRECT   0x00080000 /* Not for use in TRIGGERs or VIEWs */
-#define SQLITE_FUNC_SUBTYPE  0x00100000 /* Result likely to have sub-type */
-#define SQLITE_FUNC_UNSAFE   0x00200000 /* Function has side effects */
-#define SQLITE_FUNC_INLINE   0x00400000 /* Functions implemented in-line */
-
-/* Identifier numbers for each in-line function */
-#define INLINEFUNC_coalesce             0
-#define INLINEFUNC_implies_nonnull_row  1
-#define INLINEFUNC_expr_implies_expr    2
-#define INLINEFUNC_expr_compare         3      
-#define INLINEFUNC_affinity             4
-#define INLINEFUNC_unlikely            99  /* Default case */
-
-/*
-** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are
-** used to create the initializers for the FuncDef structures.
-**
-**   FUNCTION(zName, nArg, iArg, bNC, xFunc)
-**     Used to create a scalar function definition of a function zName
-**     implemented by C function xFunc that accepts nArg arguments. The
-**     value passed as iArg is cast to a (void*) and made available
-**     as the user-data (tdsqlite3_user_data()) for the function. If
-**     argument bNC is true, then the SQLITE_FUNC_NEEDCOLL flag is set.
-**
-**   VFUNCTION(zName, nArg, iArg, bNC, xFunc)
-**     Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag.
-**
-**   SFUNCTION(zName, nArg, iArg, bNC, xFunc)
-**     Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag and
-**     adds the SQLITE_DIRECTONLY flag.
-**
-**   INLINE_FUNC(zName, nArg, iFuncId, mFlags)
-**     zName is the name of a function that is implemented by in-line
-**     byte code rather than by the usual callbacks. The iFuncId
-**     parameter determines the function id.  The mFlags parameter is
-**     optional SQLITE_FUNC_ flags for this function.
-**
-**   TEST_FUNC(zName, nArg, iFuncId, mFlags)
-**     zName is the name of a test-only function implemented by in-line
-**     byte code rather than by the usual callbacks. The iFuncId
-**     parameter determines the function id.  The mFlags parameter is
-**     optional SQLITE_FUNC_ flags for this function.
-**
-**   DFUNCTION(zName, nArg, iArg, bNC, xFunc)
-**     Like FUNCTION except it omits the SQLITE_FUNC_CONSTANT flag and
-**     adds the SQLITE_FUNC_SLOCHNG flag.  Used for date & time functions
-**     and functions like sqlite_version() that can change, but not during
-**     a single query.  The iArg is ignored.  The user-data is always set
-**     to a NULL pointer.  The bNC parameter is not used.
-**
-**   PURE_DATE(zName, nArg, iArg, bNC, xFunc)
-**     Used for "pure" date/time functions, this macro is like DFUNCTION
-**     except that it does set the SQLITE_FUNC_CONSTANT flags.  iArg is
-**     ignored and the user-data for these functions is set to an 
-**     arbitrary non-NULL pointer.  The bNC parameter is not used.
-**
-**   AGGREGATE(zName, nArg, iArg, bNC, xStep, xFinal)
-**     Used to create an aggregate function definition implemented by
-**     the C functions xStep and xFinal. The first four parameters
-**     are interpreted in the same way as the first 4 parameters to
-**     FUNCTION().
-**
-**   WFUNCTION(zName, nArg, iArg, xStep, xFinal, xValue, xInverse)
-**     Used to create an aggregate function definition implemented by
-**     the C functions xStep and xFinal. The first four parameters
-**     are interpreted in the same way as the first 4 parameters to
-**     FUNCTION().
-**
-**   LIKEFUNC(zName, nArg, pArg, flags)
-**     Used to create a scalar function definition of a function zName
-**     that accepts nArg arguments and is implemented by a call to C
-**     function likeFunc. Argument pArg is cast to a (void *) and made
-**     available as the function user-data (tdsqlite3_user_data()). The
-**     FuncDef.flags variable is set to the value passed as the flags
-**     parameter.
-*/
-#define FUNCTION(zName, nArg, iArg, bNC, xFunc) \
-  {nArg, SQLITE_FUNC_CONSTANT|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
-   SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} }
-#define VFUNCTION(zName, nArg, iArg, bNC, xFunc) \
-  {nArg, SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
-   SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} }
-#define SFUNCTION(zName, nArg, iArg, bNC, xFunc) \
-  {nArg, SQLITE_UTF8|SQLITE_DIRECTONLY|SQLITE_FUNC_UNSAFE, \
-   SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} }
-#define INLINE_FUNC(zName, nArg, iArg, mFlags) \
-  {nArg, SQLITE_UTF8|SQLITE_FUNC_INLINE|SQLITE_FUNC_CONSTANT|(mFlags), \
-   SQLITE_INT_TO_PTR(iArg), 0, noopFunc, 0, 0, 0, #zName, {0} }
-#define TEST_FUNC(zName, nArg, iArg, mFlags) \
-  {nArg, SQLITE_UTF8|SQLITE_FUNC_INTERNAL|SQLITE_FUNC_TEST| \
-         SQLITE_FUNC_INLINE|SQLITE_FUNC_CONSTANT|(mFlags), \
-   SQLITE_INT_TO_PTR(iArg), 0, noopFunc, 0, 0, 0, #zName, {0} }
-#define DFUNCTION(zName, nArg, iArg, bNC, xFunc) \
-  {nArg, SQLITE_FUNC_SLOCHNG|SQLITE_UTF8, \
-   0, 0, xFunc, 0, 0, 0, #zName, {0} }
-#define PURE_DATE(zName, nArg, iArg, bNC, xFunc) \
-  {nArg, SQLITE_FUNC_SLOCHNG|SQLITE_UTF8|SQLITE_FUNC_CONSTANT, \
-   (void*)&tdsqlite3Config, 0, xFunc, 0, 0, 0, #zName, {0} }
-#define FUNCTION2(zName, nArg, iArg, bNC, xFunc, extraFlags) \
-  {nArg,SQLITE_FUNC_CONSTANT|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL)|extraFlags,\
-   SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, 0, #zName, {0} }
-#define STR_FUNCTION(zName, nArg, pArg, bNC, xFunc) \
-  {nArg, SQLITE_FUNC_SLOCHNG|SQLITE_UTF8|(bNC*SQLITE_FUNC_NEEDCOLL), \
-   pArg, 0, xFunc, 0, 0, 0, #zName, }
-#define LIKEFUNC(zName, nArg, arg, flags) \
-  {nArg, SQLITE_FUNC_CONSTANT|SQLITE_UTF8|flags, \
-   (void *)arg, 0, likeFunc, 0, 0, 0, #zName, {0} }
-#define WAGGREGATE(zName, nArg, arg, nc, xStep, xFinal, xValue, xInverse, f) \
-  {nArg, SQLITE_UTF8|(nc*SQLITE_FUNC_NEEDCOLL)|f, \
-   SQLITE_INT_TO_PTR(arg), 0, xStep,xFinal,xValue,xInverse,#zName, {0}}
-#define INTERNAL_FUNCTION(zName, nArg, xFunc) \
-  {nArg, SQLITE_FUNC_INTERNAL|SQLITE_UTF8|SQLITE_FUNC_CONSTANT, \
-   0, 0, xFunc, 0, 0, 0, #zName, {0} }
-
-
-/*
-** All current savepoints are stored in a linked list starting at
-** sqlite3.pSavepoint. The first element in the list is the most recently
-** opened savepoint. Savepoints are added to the list by the vdbe
-** OP_Savepoint instruction.
-*/
-struct Savepoint {
-  char *zName;                        /* Savepoint name (nul-terminated) */
-  i64 nDeferredCons;                  /* Number of deferred fk violations */
-  i64 nDeferredImmCons;               /* Number of deferred imm fk. */
-  Savepoint *pNext;                   /* Parent savepoint (if any) */
-};
-
-/*
-** The following are used as the second parameter to tdsqlite3Savepoint(),
-** and as the P1 argument to the OP_Savepoint instruction.
-*/
-#define SAVEPOINT_BEGIN      0
-#define SAVEPOINT_RELEASE    1
-#define SAVEPOINT_ROLLBACK   2
-
-
-/*
-** Each SQLite module (virtual table definition) is defined by an
-** instance of the following structure, stored in the sqlite3.aModule
-** hash table.
-*/
-struct Module {
-  const tdsqlite3_module *pModule;       /* Callback pointers */
-  const char *zName;                   /* Name passed to create_module() */
-  int nRefModule;                      /* Number of pointers to this object */
-  void *pAux;                          /* pAux passed to create_module() */
-  void (*xDestroy)(void *);            /* Module destructor function */
-  Table *pEpoTab;                      /* Eponymous table for this module */
-};
-
-/*
-** Information about each column of an SQL table is held in an instance
-** of the Column structure, in the Table.aCol[] array.
-**
-** Definitions:
-**
-**   "table column index"     This is the index of the column in the
-**                            Table.aCol[] array, and also the index of
-**                            the column in the original CREATE TABLE stmt.
-**
-**   "storage column index"   This is the index of the column in the
-**                            record BLOB generated by the OP_MakeRecord
-**                            opcode.  The storage column index is less than
-**                            or equal to the table column index.  It is
-**                            equal if and only if there are no VIRTUAL
-**                            columns to the left.
-*/
-struct Column {
-  char *zName;     /* Name of this column, \000, then the type */
-  Expr *pDflt;     /* Default value or GENERATED ALWAYS AS value */
-  char *zColl;     /* Collating sequence.  If NULL, use the default */
-  u8 notNull;      /* An OE_ code for handling a NOT NULL constraint */
-  char affinity;   /* One of the SQLITE_AFF_... values */
-  u8 szEst;        /* Estimated size of value in this column. sizeof(INT)==1 */
-  u16 colFlags;    /* Boolean properties.  See COLFLAG_ defines below */
-};
-
-/* Allowed values for Column.colFlags:
-*/
-#define COLFLAG_PRIMKEY   0x0001   /* Column is part of the primary key */
-#define COLFLAG_HIDDEN    0x0002   /* A hidden column in a virtual table */
-#define COLFLAG_HASTYPE   0x0004   /* Type name follows column name */
-#define COLFLAG_UNIQUE    0x0008   /* Column def contains "UNIQUE" or "PK" */
-#define COLFLAG_SORTERREF 0x0010   /* Use sorter-refs with this column */
-#define COLFLAG_VIRTUAL   0x0020   /* GENERATED ALWAYS AS ... VIRTUAL */
-#define COLFLAG_STORED    0x0040   /* GENERATED ALWAYS AS ... STORED */
-#define COLFLAG_NOTAVAIL  0x0080   /* STORED column not yet calculated */
-#define COLFLAG_BUSY      0x0100   /* Blocks recursion on GENERATED columns */
-#define COLFLAG_GENERATED 0x0060   /* Combo: _STORED, _VIRTUAL */
-#define COLFLAG_NOINSERT  0x0062   /* Combo: _HIDDEN, _STORED, _VIRTUAL */
-
-/*
-** A "Collating Sequence" is defined by an instance of the following
-** structure. Conceptually, a collating sequence consists of a name and
-** a comparison routine that defines the order of that sequence.
-**
-** If CollSeq.xCmp is NULL, it means that the
-** collating sequence is undefined.  Indices built on an undefined
-** collating sequence may not be read or written.
-*/
-struct CollSeq {
-  char *zName;          /* Name of the collating sequence, UTF-8 encoded */
-  u8 enc;               /* Text encoding handled by xCmp() */
-  void *pUser;          /* First argument to xCmp() */
-  int (*xCmp)(void*,int, const void*, int, const void*);
-  void (*xDel)(void*);  /* Destructor for pUser */
-};
-
-/*
-** A sort order can be either ASC or DESC.
-*/
-#define SQLITE_SO_ASC       0  /* Sort in ascending order */
-#define SQLITE_SO_DESC      1  /* Sort in ascending order */
-#define SQLITE_SO_UNDEFINED -1 /* No sort order specified */
-
-/*
-** Column affinity types.
-**
-** These used to have mnemonic name like 'i' for SQLITE_AFF_INTEGER and
-** 't' for SQLITE_AFF_TEXT.  But we can save a little space and improve
-** the speed a little by numbering the values consecutively.
-**
-** But rather than start with 0 or 1, we begin with 'A'.  That way,
-** when multiple affinity types are concatenated into a string and
-** used as the P4 operand, they will be more readable.
-**
-** Note also that the numeric types are grouped together so that testing
-** for a numeric type is a single comparison.  And the BLOB type is first.
-*/
-#define SQLITE_AFF_NONE     0x40  /* '@' */
-#define SQLITE_AFF_BLOB     0x41  /* 'A' */
-#define SQLITE_AFF_TEXT     0x42  /* 'B' */
-#define SQLITE_AFF_NUMERIC  0x43  /* 'C' */
-#define SQLITE_AFF_INTEGER  0x44  /* 'D' */
-#define SQLITE_AFF_REAL     0x45  /* 'E' */
-
-#define tdsqlite3IsNumericAffinity(X)  ((X)>=SQLITE_AFF_NUMERIC)
-
-/*
-** The SQLITE_AFF_MASK values masks off the significant bits of an
-** affinity value.
-*/
-#define SQLITE_AFF_MASK     0x47
-
-/*
-** Additional bit values that can be ORed with an affinity without
-** changing the affinity.
-**
-** The SQLITE_NOTNULL flag is a combination of NULLEQ and JUMPIFNULL.
-** It causes an assert() to fire if either operand to a comparison
-** operator is NULL.  It is added to certain comparison operators to
-** prove that the operands are always NOT NULL.
-*/
-#define SQLITE_KEEPNULL     0x08  /* Used by vector == or <> */
-#define SQLITE_JUMPIFNULL   0x10  /* jumps if either operand is NULL */
-#define SQLITE_STOREP2      0x20  /* Store result in reg[P2] rather than jump */
-#define SQLITE_NULLEQ       0x80  /* NULL=NULL */
-#define SQLITE_NOTNULL      0x90  /* Assert that operands are never NULL */
-
-/*
-** An object of this type is created for each virtual table present in
-** the database schema.
-**
-** If the database schema is shared, then there is one instance of this
-** structure for each database connection (tdsqlite3*) that uses the shared
-** schema. This is because each database connection requires its own unique
-** instance of the tdsqlite3_vtab* handle used to access the virtual table
-** implementation. tdsqlite3_vtab* handles can not be shared between
-** database connections, even when the rest of the in-memory database
-** schema is shared, as the implementation often stores the database
-** connection handle passed to it via the xConnect() or xCreate() method
-** during initialization internally. This database connection handle may
-** then be used by the virtual table implementation to access real tables
-** within the database. So that they appear as part of the callers
-** transaction, these accesses need to be made via the same database
-** connection as that used to execute SQL operations on the virtual table.
-**
-** All VTable objects that correspond to a single table in a shared
-** database schema are initially stored in a linked-list pointed to by
-** the Table.pVTable member variable of the corresponding Table object.
-** When an tdsqlite3_prepare() operation is required to access the virtual
-** table, it searches the list for the VTable that corresponds to the
-** database connection doing the preparing so as to use the correct
-** tdsqlite3_vtab* handle in the compiled query.
-**
-** When an in-memory Table object is deleted (for example when the
-** schema is being reloaded for some reason), the VTable objects are not
-** deleted and the tdsqlite3_vtab* handles are not xDisconnect()ed
-** immediately. Instead, they are moved from the Table.pVTable list to
-** another linked list headed by the sqlite3.pDisconnect member of the
-** corresponding tdsqlite3 structure. They are then deleted/xDisconnected
-** next time a statement is prepared using said tdsqlite3*. This is done
-** to avoid deadlock issues involving multiple sqlite3.mutex mutexes.
-** Refer to comments above function tdsqlite3VtabUnlockList() for an
-** explanation as to why it is safe to add an entry to an sqlite3.pDisconnect
-** list without holding the corresponding sqlite3.mutex mutex.
-**
-** The memory for objects of this type is always allocated by
-** tdsqlite3DbMalloc(), using the connection handle stored in VTable.db as
-** the first argument.
-*/
-struct VTable {
-  tdsqlite3 *db;              /* Database connection associated with this table */
-  Module *pMod;             /* Pointer to module implementation */
-  tdsqlite3_vtab *pVtab;      /* Pointer to vtab instance */
-  int nRef;                 /* Number of pointers to this structure */
-  u8 bConstraint;           /* True if constraints are supported */
-  u8 eVtabRisk;             /* Riskiness of allowing hacker access */
-  int iSavepoint;           /* Depth of the SAVEPOINT stack */
-  VTable *pNext;            /* Next in linked list (see above) */
-};
-
-/* Allowed values for VTable.eVtabRisk
-*/
-#define SQLITE_VTABRISK_Low          0
-#define SQLITE_VTABRISK_Normal       1
-#define SQLITE_VTABRISK_High         2
-
-/*
-** The schema for each SQL table and view is represented in memory
-** by an instance of the following structure.
-*/
-struct Table {
-  char *zName;         /* Name of the table or view */
-  Column *aCol;        /* Information about each column */
-  Index *pIndex;       /* List of SQL indexes on this table. */
-  Select *pSelect;     /* NULL for tables.  Points to definition if a view. */
-  FKey *pFKey;         /* Linked list of all foreign keys in this table */
-  char *zColAff;       /* String defining the affinity of each column */
-  ExprList *pCheck;    /* All CHECK constraints */
-                       /*   ... also used as column name list in a VIEW */
-  int tnum;            /* Root BTree page for this table */
-  u32 nTabRef;         /* Number of pointers to this Table */
-  u32 tabFlags;        /* Mask of TF_* values */
-  i16 iPKey;           /* If not negative, use aCol[iPKey] as the rowid */
-  i16 nCol;            /* Number of columns in this table */
-  i16 nNVCol;          /* Number of columns that are not VIRTUAL */
-  LogEst nRowLogEst;   /* Estimated rows in table - from sqlite_stat1 table */
-  LogEst szTabRow;     /* Estimated size of each table row in bytes */
-#ifdef SQLITE_ENABLE_COSTMULT
-  LogEst costMult;     /* Cost multiplier for using this table */
-#endif
-  u8 keyConf;          /* What to do in case of uniqueness conflict on iPKey */
-#ifndef SQLITE_OMIT_ALTERTABLE
-  int addColOffset;    /* Offset in CREATE TABLE stmt to add a new column */
-#endif
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  int nModuleArg;      /* Number of arguments to the module */
-  char **azModuleArg;  /* 0: module 1: schema 2: vtab name 3...: args */
-  VTable *pVTable;     /* List of VTable objects. */
-#endif
-  Trigger *pTrigger;   /* List of triggers stored in pSchema */
-  Schema *pSchema;     /* Schema that contains this table */
-  Table *pNextZombie;  /* Next on the Parse.pZombieTab list */
-};
-
-/*
-** Allowed values for Table.tabFlags.
-**
-** TF_OOOHidden applies to tables or view that have hidden columns that are
-** followed by non-hidden columns.  Example:  "CREATE VIRTUAL TABLE x USING
-** vtab1(a HIDDEN, b);".  Since "b" is a non-hidden column but "a" is hidden,
-** the TF_OOOHidden attribute would apply in this case.  Such tables require
-** special handling during INSERT processing. The "OOO" means "Out Of Order".
-**
-** Constraints:
-**
-**         TF_HasVirtual == COLFLAG_Virtual
-**         TF_HasStored  == COLFLAG_Stored
-*/
-#define TF_Readonly        0x0001    /* Read-only system table */
-#define TF_Ephemeral       0x0002    /* An ephemeral table */
-#define TF_HasPrimaryKey   0x0004    /* Table has a primary key */
-#define TF_Autoincrement   0x0008    /* Integer primary key is autoincrement */
-#define TF_HasStat1        0x0010    /* nRowLogEst set from sqlite_stat1 */
-#define TF_HasVirtual      0x0020    /* Has one or more VIRTUAL columns */
-#define TF_HasStored       0x0040    /* Has one or more STORED columns */
-#define TF_HasGenerated    0x0060    /* Combo: HasVirtual + HasStored */
-#define TF_WithoutRowid    0x0080    /* No rowid.  PRIMARY KEY is the key */
-#define TF_StatsUsed       0x0100    /* Query planner decisions affected by
-                                     ** Index.aiRowLogEst[] values */
-#define TF_NoVisibleRowid  0x0200    /* No user-visible "rowid" column */
-#define TF_OOOHidden       0x0400    /* Out-of-Order hidden columns */
-#define TF_HasNotNull      0x0800    /* Contains NOT NULL constraints */
-#define TF_Shadow          0x1000    /* True for a shadow table */
-
-/*
-** Test to see whether or not a table is a virtual table.  This is
-** done as a macro so that it will be optimized out when virtual
-** table support is omitted from the build.
-*/
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-#  define IsVirtual(X)      ((X)->nModuleArg)
-#else
-#  define IsVirtual(X)      0
-#endif
-
-/*
-** Macros to determine if a column is hidden.  IsOrdinaryHiddenColumn()
-** only works for non-virtual tables (ordinary tables and views) and is
-** always false unless SQLITE_ENABLE_HIDDEN_COLUMNS is defined.  The
-** IsHiddenColumn() macro is general purpose.
-*/
-#if defined(SQLITE_ENABLE_HIDDEN_COLUMNS)
-#  define IsHiddenColumn(X)         (((X)->colFlags & COLFLAG_HIDDEN)!=0)
-#  define IsOrdinaryHiddenColumn(X) (((X)->colFlags & COLFLAG_HIDDEN)!=0)
-#elif !defined(SQLITE_OMIT_VIRTUALTABLE)
-#  define IsHiddenColumn(X)         (((X)->colFlags & COLFLAG_HIDDEN)!=0)
-#  define IsOrdinaryHiddenColumn(X) 0
-#else
-#  define IsHiddenColumn(X)         0
-#  define IsOrdinaryHiddenColumn(X) 0
-#endif
-
-
-/* Does the table have a rowid */
-#define HasRowid(X)     (((X)->tabFlags & TF_WithoutRowid)==0)
-#define VisibleRowid(X) (((X)->tabFlags & TF_NoVisibleRowid)==0)
-
-/*
-** Each foreign key constraint is an instance of the following structure.
-**
-** A foreign key is associated with two tables.  The "from" table is
-** the table that contains the REFERENCES clause that creates the foreign
-** key.  The "to" table is the table that is named in the REFERENCES clause.
-** Consider this example:
-**
-**     CREATE TABLE ex1(
-**       a INTEGER PRIMARY KEY,
-**       b INTEGER CONSTRAINT fk1 REFERENCES ex2(x)
-**     );
-**
-** For foreign key "fk1", the from-table is "ex1" and the to-table is "ex2".
-** Equivalent names:
-**
-**     from-table == child-table
-**       to-table == parent-table
-**
-** Each REFERENCES clause generates an instance of the following structure
-** which is attached to the from-table.  The to-table need not exist when
-** the from-table is created.  The existence of the to-table is not checked.
-**
-** The list of all parents for child Table X is held at X.pFKey.
-**
-** A list of all children for a table named Z (which might not even exist)
-** is held in Schema.fkeyHash with a hash key of Z.
-*/
-struct FKey {
-  Table *pFrom;     /* Table containing the REFERENCES clause (aka: Child) */
-  FKey *pNextFrom;  /* Next FKey with the same in pFrom. Next parent of pFrom */
-  char *zTo;        /* Name of table that the key points to (aka: Parent) */
-  FKey *pNextTo;    /* Next with the same zTo. Next child of zTo. */
-  FKey *pPrevTo;    /* Previous with the same zTo */
-  int nCol;         /* Number of columns in this key */
-  /* EV: R-30323-21917 */
-  u8 isDeferred;       /* True if constraint checking is deferred till COMMIT */
-  u8 aAction[2];        /* ON DELETE and ON UPDATE actions, respectively */
-  Trigger *apTrigger[2];/* Triggers for aAction[] actions */
-  struct sColMap {      /* Mapping of columns in pFrom to columns in zTo */
-    int iFrom;            /* Index of column in pFrom */
-    char *zCol;           /* Name of column in zTo.  If NULL use PRIMARY KEY */
-  } aCol[1];            /* One entry for each of nCol columns */
-};
-
-/*
-** SQLite supports many different ways to resolve a constraint
-** error.  ROLLBACK processing means that a constraint violation
-** causes the operation in process to fail and for the current transaction
-** to be rolled back.  ABORT processing means the operation in process
-** fails and any prior changes from that one operation are backed out,
-** but the transaction is not rolled back.  FAIL processing means that
-** the operation in progress stops and returns an error code.  But prior
-** changes due to the same operation are not backed out and no rollback
-** occurs.  IGNORE means that the particular row that caused the constraint
-** error is not inserted or updated.  Processing continues and no error
-** is returned.  REPLACE means that preexisting database rows that caused
-** a UNIQUE constraint violation are removed so that the new insert or
-** update can proceed.  Processing continues and no error is reported.
-**
-** RESTRICT, SETNULL, and CASCADE actions apply only to foreign keys.
-** RESTRICT is the same as ABORT for IMMEDIATE foreign keys and the
-** same as ROLLBACK for DEFERRED keys.  SETNULL means that the foreign
-** key is set to NULL.  CASCADE means that a DELETE or UPDATE of the
-** referenced table row is propagated into the row that holds the
-** foreign key.
-**
-** The following symbolic values are used to record which type
-** of action to take.
-*/
-#define OE_None     0   /* There is no constraint to check */
-#define OE_Rollback 1   /* Fail the operation and rollback the transaction */
-#define OE_Abort    2   /* Back out changes but do no rollback transaction */
-#define OE_Fail     3   /* Stop the operation but leave all prior changes */
-#define OE_Ignore   4   /* Ignore the error. Do not do the INSERT or UPDATE */
-#define OE_Replace  5   /* Delete existing record, then do INSERT or UPDATE */
-#define OE_Update   6   /* Process as a DO UPDATE in an upsert */
-#define OE_Restrict 7   /* OE_Abort for IMMEDIATE, OE_Rollback for DEFERRED */
-#define OE_SetNull  8   /* Set the foreign key value to NULL */
-#define OE_SetDflt  9   /* Set the foreign key value to its default */
-#define OE_Cascade  10  /* Cascade the changes */
-#define OE_Default  11  /* Do whatever the default action is */
-
-
-/*
-** An instance of the following structure is passed as the first
-** argument to tdsqlite3VdbeKeyCompare and is used to control the
-** comparison of the two index keys.
-**
-** Note that aSortOrder[] and aColl[] have nField+1 slots.  There
-** are nField slots for the columns of an index then one extra slot
-** for the rowid at the end.
-*/
-struct KeyInfo {
-  u32 nRef;           /* Number of references to this KeyInfo object */
-  u8 enc;             /* Text encoding - one of the SQLITE_UTF* values */
-  u16 nKeyField;      /* Number of key columns in the index */
-  u16 nAllField;      /* Total columns, including key plus others */
-  tdsqlite3 *db;        /* The database connection */
-  u8 *aSortFlags;     /* Sort order for each column. */
-  CollSeq *aColl[1];  /* Collating sequence for each term of the key */
-};
-
-/*
-** Allowed bit values for entries in the KeyInfo.aSortFlags[] array.
-*/
-#define KEYINFO_ORDER_DESC    0x01    /* DESC sort order */
-#define KEYINFO_ORDER_BIGNULL 0x02    /* NULL is larger than any other value */
-
-/*
-** This object holds a record which has been parsed out into individual
-** fields, for the purposes of doing a comparison.
-**
-** A record is an object that contains one or more fields of data.
-** Records are used to store the content of a table row and to store
-** the key of an index.  A blob encoding of a record is created by
-** the OP_MakeRecord opcode of the VDBE and is disassembled by the
-** OP_Column opcode.
-**
-** An instance of this object serves as a "key" for doing a search on
-** an index b+tree. The goal of the search is to find the entry that
-** is closed to the key described by this object.  This object might hold
-** just a prefix of the key.  The number of fields is given by
-** pKeyInfo->nField.
-**
-** The r1 and r2 fields are the values to return if this key is less than
-** or greater than a key in the btree, respectively.  These are normally
-** -1 and +1 respectively, but might be inverted to +1 and -1 if the b-tree
-** is in DESC order.
-**
-** The key comparison functions actually return default_rc when they find
-** an equals comparison.  default_rc can be -1, 0, or +1.  If there are
-** multiple entries in the b-tree with the same key (when only looking
-** at the first pKeyInfo->nFields,) then default_rc can be set to -1 to
-** cause the search to find the last match, or +1 to cause the search to
-** find the first match.
-**
-** The key comparison functions will set eqSeen to true if they ever
-** get and equal results when comparing this structure to a b-tree record.
-** When default_rc!=0, the search might end up on the record immediately
-** before the first match or immediately after the last match.  The
-** eqSeen field will indicate whether or not an exact match exists in the
-** b-tree.
-*/
-struct UnpackedRecord {
-  KeyInfo *pKeyInfo;  /* Collation and sort-order information */
-  Mem *aMem;          /* Values */
-  u16 nField;         /* Number of entries in apMem[] */
-  i8 default_rc;      /* Comparison result if keys are equal */
-  u8 errCode;         /* Error detected by xRecordCompare (CORRUPT or NOMEM) */
-  i8 r1;              /* Value to return if (lhs < rhs) */
-  i8 r2;              /* Value to return if (lhs > rhs) */
-  u8 eqSeen;          /* True if an equality comparison has been seen */
-};
-
-
-/*
-** Each SQL index is represented in memory by an
-** instance of the following structure.
-**
-** The columns of the table that are to be indexed are described
-** by the aiColumn[] field of this structure.  For example, suppose
-** we have the following table and index:
-**
-**     CREATE TABLE Ex1(c1 int, c2 int, c3 text);
-**     CREATE INDEX Ex2 ON Ex1(c3,c1);
-**
-** In the Table structure describing Ex1, nCol==3 because there are
-** three columns in the table.  In the Index structure describing
-** Ex2, nColumn==2 since 2 of the 3 columns of Ex1 are indexed.
-** The value of aiColumn is {2, 0}.  aiColumn[0]==2 because the
-** first column to be indexed (c3) has an index of 2 in Ex1.aCol[].
-** The second column to be indexed (c1) has an index of 0 in
-** Ex1.aCol[], hence Ex2.aiColumn[1]==0.
-**
-** The Index.onError field determines whether or not the indexed columns
-** must be unique and what to do if they are not.  When Index.onError=OE_None,
-** it means this is not a unique index.  Otherwise it is a unique index
-** and the value of Index.onError indicate the which conflict resolution
-** algorithm to employ whenever an attempt is made to insert a non-unique
-** element.
-**
-** While parsing a CREATE TABLE or CREATE INDEX statement in order to
-** generate VDBE code (as opposed to parsing one read from an sqlite_master
-** table as part of parsing an existing database schema), transient instances
-** of this structure may be created. In this case the Index.tnum variable is
-** used to store the address of a VDBE instruction, not a database page
-** number (it cannot - the database page is not allocated until the VDBE
-** program is executed). See convertToWithoutRowidTable() for details.
-*/
-struct Index {
-  char *zName;             /* Name of this index */
-  i16 *aiColumn;           /* Which columns are used by this index.  1st is 0 */
-  LogEst *aiRowLogEst;     /* From ANALYZE: Est. rows selected by each column */
-  Table *pTable;           /* The SQL table being indexed */
-  char *zColAff;           /* String defining the affinity of each column */
-  Index *pNext;            /* The next index associated with the same table */
-  Schema *pSchema;         /* Schema containing this index */
-  u8 *aSortOrder;          /* for each column: True==DESC, False==ASC */
-  const char **azColl;     /* Array of collation sequence names for index */
-  Expr *pPartIdxWhere;     /* WHERE clause for partial indices */
-  ExprList *aColExpr;      /* Column expressions */
-  int tnum;                /* DB Page containing root of this index */
-  LogEst szIdxRow;         /* Estimated average row size in bytes */
-  u16 nKeyCol;             /* Number of columns forming the key */
-  u16 nColumn;             /* Number of columns stored in the index */
-  u8 onError;              /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
-  unsigned idxType:2;      /* 0:Normal 1:UNIQUE, 2:PRIMARY KEY, 3:IPK */
-  unsigned bUnordered:1;   /* Use this index for == or IN queries only */
-  unsigned uniqNotNull:1;  /* True if UNIQUE and NOT NULL for all columns */
-  unsigned isResized:1;    /* True if resizeIndexObject() has been called */
-  unsigned isCovering:1;   /* True if this is a covering index */
-  unsigned noSkipScan:1;   /* Do not try to use skip-scan if true */
-  unsigned hasStat1:1;     /* aiRowLogEst values come from sqlite_stat1 */
-  unsigned bNoQuery:1;     /* Do not use this index to optimize queries */
-  unsigned bAscKeyBug:1;   /* True if the bba7b69f9849b5bf bug applies */
-  unsigned bHasVCol:1;     /* Index references one or more VIRTUAL columns */
-#ifdef SQLITE_ENABLE_STAT4
-  int nSample;             /* Number of elements in aSample[] */
-  int nSampleCol;          /* Size of IndexSample.anEq[] and so on */
-  tRowcnt *aAvgEq;         /* Average nEq values for keys not in aSample */
-  IndexSample *aSample;    /* Samples of the left-most key */
-  tRowcnt *aiRowEst;       /* Non-logarithmic stat1 data for this index */
-  tRowcnt nRowEst0;        /* Non-logarithmic number of rows in the index */
-#endif
-  Bitmask colNotIdxed;     /* 0 for unindexed columns in pTab */
-};
-
-/*
-** Allowed values for Index.idxType
-*/
-#define SQLITE_IDXTYPE_APPDEF      0   /* Created using CREATE INDEX */
-#define SQLITE_IDXTYPE_UNIQUE      1   /* Implements a UNIQUE constraint */
-#define SQLITE_IDXTYPE_PRIMARYKEY  2   /* Is the PRIMARY KEY for the table */
-#define SQLITE_IDXTYPE_IPK         3   /* INTEGER PRIMARY KEY index */
-
-/* Return true if index X is a PRIMARY KEY index */
-#define IsPrimaryKeyIndex(X)  ((X)->idxType==SQLITE_IDXTYPE_PRIMARYKEY)
-
-/* Return true if index X is a UNIQUE index */
-#define IsUniqueIndex(X)      ((X)->onError!=OE_None)
-
-/* The Index.aiColumn[] values are normally positive integer.  But
-** there are some negative values that have special meaning:
-*/
-#define XN_ROWID     (-1)     /* Indexed column is the rowid */
-#define XN_EXPR      (-2)     /* Indexed column is an expression */
-
-/*
-** Each sample stored in the sqlite_stat4 table is represented in memory
-** using a structure of this type.  See documentation at the top of the
-** analyze.c source file for additional information.
-*/
-struct IndexSample {
-  void *p;          /* Pointer to sampled record */
-  int n;            /* Size of record in bytes */
-  tRowcnt *anEq;    /* Est. number of rows where the key equals this sample */
-  tRowcnt *anLt;    /* Est. number of rows where key is less than this sample */
-  tRowcnt *anDLt;   /* Est. number of distinct keys less than this sample */
-};
-
-/*
-** Possible values to use within the flags argument to tdsqlite3GetToken().
-*/
-#define SQLITE_TOKEN_QUOTED    0x1 /* Token is a quoted identifier. */
-#define SQLITE_TOKEN_KEYWORD   0x2 /* Token is a keyword. */
-
-/*
-** Each token coming out of the lexer is an instance of
-** this structure.  Tokens are also used as part of an expression.
-**
-** The memory that "z" points to is owned by other objects.  Take care
-** that the owner of the "z" string does not deallocate the string before
-** the Token goes out of scope!  Very often, the "z" points to some place
-** in the middle of the Parse.zSql text.  But it might also point to a
-** static string.
-*/
-struct Token {
-  const char *z;     /* Text of the token.  Not NULL-terminated! */
-  unsigned int n;    /* Number of characters in this token */
-};
-
-/*
-** An instance of this structure contains information needed to generate
-** code for a SELECT that contains aggregate functions.
-**
-** If Expr.op==TK_AGG_COLUMN or TK_AGG_FUNCTION then Expr.pAggInfo is a
-** pointer to this structure.  The Expr.iColumn field is the index in
-** AggInfo.aCol[] or AggInfo.aFunc[] of information needed to generate
-** code for that node.
-**
-** AggInfo.pGroupBy and AggInfo.aFunc.pExpr point to fields within the
-** original Select structure that describes the SELECT statement.  These
-** fields do not need to be freed when deallocating the AggInfo structure.
-*/
-struct AggInfo {
-  u8 directMode;          /* Direct rendering mode means take data directly
-                          ** from source tables rather than from accumulators */
-  u8 useSortingIdx;       /* In direct mode, reference the sorting index rather
-                          ** than the source table */
-  int sortingIdx;         /* Cursor number of the sorting index */
-  int sortingIdxPTab;     /* Cursor number of pseudo-table */
-  int nSortingColumn;     /* Number of columns in the sorting index */
-  int mnReg, mxReg;       /* Range of registers allocated for aCol and aFunc */
-  ExprList *pGroupBy;     /* The group by clause */
-  struct AggInfo_col {    /* For each column used in source tables */
-    Table *pTab;             /* Source table */
-    int iTable;              /* Cursor number of the source table */
-    int iColumn;             /* Column number within the source table */
-    int iSorterColumn;       /* Column number in the sorting index */
-    int iMem;                /* Memory location that acts as accumulator */
-    Expr *pExpr;             /* The original expression */
-  } *aCol;
-  int nColumn;            /* Number of used entries in aCol[] */
-  int nAccumulator;       /* Number of columns that show through to the output.
-                          ** Additional columns are used only as parameters to
-                          ** aggregate functions */
-  struct AggInfo_func {   /* For each aggregate function */
-    Expr *pExpr;             /* Expression encoding the function */
-    FuncDef *pFunc;          /* The aggregate function implementation */
-    int iMem;                /* Memory location that acts as accumulator */
-    int iDistinct;           /* Ephemeral table used to enforce DISTINCT */
-  } *aFunc;
-  int nFunc;              /* Number of entries in aFunc[] */
-};
-
-/*
-** The datatype ynVar is a signed integer, either 16-bit or 32-bit.
-** Usually it is 16-bits.  But if SQLITE_MAX_VARIABLE_NUMBER is greater
-** than 32767 we have to make it 32-bit.  16-bit is preferred because
-** it uses less memory in the Expr object, which is a big memory user
-** in systems with lots of prepared statements.  And few applications
-** need more than about 10 or 20 variables.  But some extreme users want
-** to have prepared statements with over 32767 variables, and for them
-** the option is available (at compile-time).
-*/
-#if SQLITE_MAX_VARIABLE_NUMBER<=32767
-typedef i16 ynVar;
-#else
-typedef int ynVar;
-#endif
-
-/*
-** Each node of an expression in the parse tree is an instance
-** of this structure.
-**
-** Expr.op is the opcode. The integer parser token codes are reused
-** as opcodes here. For example, the parser defines TK_GE to be an integer
-** code representing the ">=" operator. This same integer code is reused
-** to represent the greater-than-or-equal-to operator in the expression
-** tree.
-**
-** If the expression is an SQL literal (TK_INTEGER, TK_FLOAT, TK_BLOB,
-** or TK_STRING), then Expr.token contains the text of the SQL literal. If
-** the expression is a variable (TK_VARIABLE), then Expr.token contains the
-** variable name. Finally, if the expression is an SQL function (TK_FUNCTION),
-** then Expr.token contains the name of the function.
-**
-** Expr.pRight and Expr.pLeft are the left and right subexpressions of a
-** binary operator. Either or both may be NULL.
-**
-** Expr.x.pList is a list of arguments if the expression is an SQL function,
-** a CASE expression or an IN expression of the form "<lhs> IN (<y>, <z>...)".
-** Expr.x.pSelect is used if the expression is a sub-select or an expression of
-** the form "<lhs> IN (SELECT ...)". If the EP_xIsSelect bit is set in the
-** Expr.flags mask, then Expr.x.pSelect is valid. Otherwise, Expr.x.pList is
-** valid.
-**
-** An expression of the form ID or ID.ID refers to a column in a table.
-** For such expressions, Expr.op is set to TK_COLUMN and Expr.iTable is
-** the integer cursor number of a VDBE cursor pointing to that table and
-** Expr.iColumn is the column number for the specific column.  If the
-** expression is used as a result in an aggregate SELECT, then the
-** value is also stored in the Expr.iAgg column in the aggregate so that
-** it can be accessed after all aggregates are computed.
-**
-** If the expression is an unbound variable marker (a question mark
-** character '?' in the original SQL) then the Expr.iTable holds the index
-** number for that variable.
-**
-** If the expression is a subquery then Expr.iColumn holds an integer
-** register number containing the result of the subquery.  If the
-** subquery gives a constant result, then iTable is -1.  If the subquery
-** gives a different answer at different times during statement processing
-** then iTable is the address of a subroutine that computes the subquery.
-**
-** If the Expr is of type OP_Column, and the table it is selecting from
-** is a disk table or the "old.*" pseudo-table, then pTab points to the
-** corresponding table definition.
-**
-** ALLOCATION NOTES:
-**
-** Expr objects can use a lot of memory space in database schema.  To
-** help reduce memory requirements, sometimes an Expr object will be
-** truncated.  And to reduce the number of memory allocations, sometimes
-** two or more Expr objects will be stored in a single memory allocation,
-** together with Expr.zToken strings.
-**
-** If the EP_Reduced and EP_TokenOnly flags are set when
-** an Expr object is truncated.  When EP_Reduced is set, then all
-** the child Expr objects in the Expr.pLeft and Expr.pRight subtrees
-** are contained within the same memory allocation.  Note, however, that
-** the subtrees in Expr.x.pList or Expr.x.pSelect are always separately
-** allocated, regardless of whether or not EP_Reduced is set.
-*/
-struct Expr {
-  u8 op;                 /* Operation performed by this node */
-  char affExpr;          /* affinity, or RAISE type */
-  u8 op2;                /* TK_REGISTER/TK_TRUTH: original value of Expr.op
-                         ** TK_COLUMN: the value of p5 for OP_Column
-                         ** TK_AGG_FUNCTION: nesting depth
-                         ** TK_FUNCTION: NC_SelfRef flag if needs OP_PureFunc */
-  u32 flags;             /* Various flags.  EP_* See below */
-  union {
-    char *zToken;          /* Token value. Zero terminated and dequoted */
-    int iValue;            /* Non-negative integer value if EP_IntValue */
-  } u;
-
-  /* If the EP_TokenOnly flag is set in the Expr.flags mask, then no
-  ** space is allocated for the fields below this point. An attempt to
-  ** access them will result in a segfault or malfunction.
-  *********************************************************************/
-
-  Expr *pLeft;           /* Left subnode */
-  Expr *pRight;          /* Right subnode */
-  union {
-    ExprList *pList;     /* op = IN, EXISTS, SELECT, CASE, FUNCTION, BETWEEN */
-    Select *pSelect;     /* EP_xIsSelect and op = IN, EXISTS, SELECT */
-  } x;
-
-  /* If the EP_Reduced flag is set in the Expr.flags mask, then no
-  ** space is allocated for the fields below this point. An attempt to
-  ** access them will result in a segfault or malfunction.
-  *********************************************************************/
-
-#if SQLITE_MAX_EXPR_DEPTH>0
-  int nHeight;           /* Height of the tree headed by this node */
-#endif
-  int iTable;            /* TK_COLUMN: cursor number of table holding column
-                         ** TK_REGISTER: register number
-                         ** TK_TRIGGER: 1 -> new, 0 -> old
-                         ** EP_Unlikely:  134217728 times likelihood
-                         ** TK_IN: ephemerial table holding RHS
-                         ** TK_SELECT_COLUMN: Number of columns on the LHS
-                         ** TK_SELECT: 1st register of result vector */
-  ynVar iColumn;         /* TK_COLUMN: column index.  -1 for rowid.
-                         ** TK_VARIABLE: variable number (always >= 1).
-                         ** TK_SELECT_COLUMN: column of the result vector */
-  i16 iAgg;              /* Which entry in pAggInfo->aCol[] or ->aFunc[] */
-  i16 iRightJoinTable;   /* If EP_FromJoin, the right table of the join */
-  AggInfo *pAggInfo;     /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */
-  union {
-    Table *pTab;           /* TK_COLUMN: Table containing column. Can be NULL
-                           ** for a column of an index on an expression */
-    Window *pWin;          /* EP_WinFunc: Window/Filter defn for a function */
-    struct {               /* TK_IN, TK_SELECT, and TK_EXISTS */
-      int iAddr;             /* Subroutine entry address */
-      int regReturn;         /* Register used to hold return address */
-    } sub;
-  } y;
-};
-
-/*
-** The following are the meanings of bits in the Expr.flags field.
-** Value restrictions:
-**
-**          EP_Agg == NC_HasAgg == SF_HasAgg
-**          EP_Win == NC_HasWin
-*/
-#define EP_FromJoin   0x000001 /* Originates in ON/USING clause of outer join */
-#define EP_Distinct   0x000002 /* Aggregate function with DISTINCT keyword */
-#define EP_HasFunc    0x000004 /* Contains one or more functions of any kind */
-#define EP_FixedCol   0x000008 /* TK_Column with a known fixed value */
-#define EP_Agg        0x000010 /* Contains one or more aggregate functions */
-#define EP_VarSelect  0x000020 /* pSelect is correlated, not constant */
-#define EP_DblQuoted  0x000040 /* token.z was originally in "..." */
-#define EP_InfixFunc  0x000080 /* True for an infix function: LIKE, GLOB, etc */
-#define EP_Collate    0x000100 /* Tree contains a TK_COLLATE operator */
-#define EP_Commuted   0x000200 /* Comparison operator has been commuted */
-#define EP_IntValue   0x000400 /* Integer value contained in u.iValue */
-#define EP_xIsSelect  0x000800 /* x.pSelect is valid (otherwise x.pList is) */
-#define EP_Skip       0x001000 /* Operator does not contribute to affinity */
-#define EP_Reduced    0x002000 /* Expr struct EXPR_REDUCEDSIZE bytes only */
-#define EP_TokenOnly  0x004000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */
-#define EP_Win        0x008000 /* Contains window functions */
-#define EP_MemToken   0x010000 /* Need to tdsqlite3DbFree() Expr.zToken */
-#define EP_NoReduce   0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
-#define EP_Unlikely   0x040000 /* unlikely() or likelihood() function */
-#define EP_ConstFunc  0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */
-#define EP_CanBeNull  0x100000 /* Can be null despite NOT NULL constraint */
-#define EP_Subquery   0x200000 /* Tree contains a TK_SELECT operator */
-#define EP_Alias      0x400000 /* Is an alias for a result set column */
-#define EP_Leaf       0x800000 /* Expr.pLeft, .pRight, .u.pSelect all NULL */
-#define EP_WinFunc   0x1000000 /* TK_FUNCTION with Expr.y.pWin set */
-#define EP_Subrtn    0x2000000 /* Uses Expr.y.sub. TK_IN, _SELECT, or _EXISTS */
-#define EP_Quoted    0x4000000 /* TK_ID was originally quoted */
-#define EP_Static    0x8000000 /* Held in memory not obtained from malloc() */
-#define EP_IsTrue   0x10000000 /* Always has boolean value of TRUE */
-#define EP_IsFalse  0x20000000 /* Always has boolean value of FALSE */
-#define EP_FromDDL  0x40000000 /* Originates from sqlite_master */
-
-/*
-** The EP_Propagate mask is a set of properties that automatically propagate
-** upwards into parent nodes.
-*/
-#define EP_Propagate (EP_Collate|EP_Subquery|EP_HasFunc)
-
-/*
-** These macros can be used to test, set, or clear bits in the
-** Expr.flags field.
-*/
-#define ExprHasProperty(E,P)     (((E)->flags&(P))!=0)
-#define ExprHasAllProperty(E,P)  (((E)->flags&(P))==(P))
-#define ExprSetProperty(E,P)     (E)->flags|=(P)
-#define ExprClearProperty(E,P)   (E)->flags&=~(P)
-#define ExprAlwaysTrue(E)   (((E)->flags&(EP_FromJoin|EP_IsTrue))==EP_IsTrue)
-#define ExprAlwaysFalse(E)  (((E)->flags&(EP_FromJoin|EP_IsFalse))==EP_IsFalse)
-
-/* The ExprSetVVAProperty() macro is used for Verification, Validation,
-** and Accreditation only.  It works like ExprSetProperty() during VVA
-** processes but is a no-op for delivery.
-*/
-#ifdef SQLITE_DEBUG
-# define ExprSetVVAProperty(E,P)  (E)->flags|=(P)
-#else
-# define ExprSetVVAProperty(E,P)
-#endif
-
-/*
-** Macros to determine the number of bytes required by a normal Expr
-** struct, an Expr struct with the EP_Reduced flag set in Expr.flags
-** and an Expr struct with the EP_TokenOnly flag set.
-*/
-#define EXPR_FULLSIZE           sizeof(Expr)           /* Full size */
-#define EXPR_REDUCEDSIZE        offsetof(Expr,iTable)  /* Common features */
-#define EXPR_TOKENONLYSIZE      offsetof(Expr,pLeft)   /* Fewer features */
-
-/*
-** Flags passed to the tdsqlite3ExprDup() function. See the header comment
-** above tdsqlite3ExprDup() for details.
-*/
-#define EXPRDUP_REDUCE         0x0001  /* Used reduced-size Expr nodes */
-
-/*
-** True if the expression passed as an argument was a function with
-** an OVER() clause (a window function).
-*/
-#ifdef SQLITE_OMIT_WINDOWFUNC
-# define IsWindowFunc(p) 0
-#else
-# define IsWindowFunc(p) ( \
-    ExprHasProperty((p), EP_WinFunc) && p->y.pWin->eFrmType!=TK_FILTER \
- )
-#endif
-
-/*
-** A list of expressions.  Each expression may optionally have a
-** name.  An expr/name combination can be used in several ways, such
-** as the list of "expr AS ID" fields following a "SELECT" or in the
-** list of "ID = expr" items in an UPDATE.  A list of expressions can
-** also be used as the argument to a function, in which case the a.zName
-** field is not used.
-**
-** In order to try to keep memory usage down, the Expr.a.zEName field
-** is used for multiple purposes:
-**
-**     eEName          Usage
-**    ----------       -------------------------
-**    ENAME_NAME       (1) the AS of result set column
-**                     (2) COLUMN= of an UPDATE
-**
-**    ENAME_TAB        DB.TABLE.NAME used to resolve names
-**                     of subqueries
-**
-**    ENAME_SPAN       Text of the original result set
-**                     expression.
-*/
-struct ExprList {
-  int nExpr;             /* Number of expressions on the list */
-  struct ExprList_item { /* For each expression in the list */
-    Expr *pExpr;            /* The parse tree for this expression */
-    char *zEName;           /* Token associated with this expression */
-    u8 sortFlags;           /* Mask of KEYINFO_ORDER_* flags */
-    unsigned eEName :2;     /* Meaning of zEName */
-    unsigned done :1;       /* A flag to indicate when processing is finished */
-    unsigned reusable :1;   /* Constant expression is reusable */
-    unsigned bSorterRef :1; /* Defer evaluation until after sorting */
-    unsigned bNulls: 1;     /* True if explicit "NULLS FIRST/LAST" */
-    union {
-      struct {
-        u16 iOrderByCol;      /* For ORDER BY, column number in result set */
-        u16 iAlias;           /* Index into Parse.aAlias[] for zName */
-      } x;
-      int iConstExprReg;      /* Register in which Expr value is cached */
-    } u;
-  } a[1];                  /* One slot for each expression in the list */
-};
-
-/*
-** Allowed values for Expr.a.eEName
-*/
-#define ENAME_NAME  0       /* The AS clause of a result set */
-#define ENAME_SPAN  1       /* Complete text of the result set expression */
-#define ENAME_TAB   2       /* "DB.TABLE.NAME" for the result set */
-
-/*
-** An instance of this structure can hold a simple list of identifiers,
-** such as the list "a,b,c" in the following statements:
-**
-**      INSERT INTO t(a,b,c) VALUES ...;
-**      CREATE INDEX idx ON t(a,b,c);
-**      CREATE TRIGGER trig BEFORE UPDATE ON t(a,b,c) ...;
-**
-** The IdList.a.idx field is used when the IdList represents the list of
-** column names after a table name in an INSERT statement.  In the statement
-**
-**     INSERT INTO t(a,b,c) ...
-**
-** If "a" is the k-th column of table "t", then IdList.a[0].idx==k.
-*/
-struct IdList {
-  struct IdList_item {
-    char *zName;      /* Name of the identifier */
-    int idx;          /* Index in some Table.aCol[] of a column named zName */
-  } *a;
-  int nId;         /* Number of identifiers on the list */
-};
-
-/*
-** The following structure describes the FROM clause of a SELECT statement.
-** Each table or subquery in the FROM clause is a separate element of
-** the SrcList.a[] array.
-**
-** With the addition of multiple database support, the following structure
-** can also be used to describe a particular table such as the table that
-** is modified by an INSERT, DELETE, or UPDATE statement.  In standard SQL,
-** such a table must be a simple name: ID.  But in SQLite, the table can
-** now be identified by a database name, a dot, then the table name: ID.ID.
-**
-** The jointype starts out showing the join type between the current table
-** and the next table on the list.  The parser builds the list this way.
-** But tdsqlite3SrcListShiftJoinType() later shifts the jointypes so that each
-** jointype expresses the join between the table and the previous table.
-**
-** In the colUsed field, the high-order bit (bit 63) is set if the table
-** contains more than 63 columns and the 64-th or later column is used.
-*/
-struct SrcList {
-  int nSrc;        /* Number of tables or subqueries in the FROM clause */
-  u32 nAlloc;      /* Number of entries allocated in a[] below */
-  struct SrcList_item {
-    Schema *pSchema;  /* Schema to which this item is fixed */
-    char *zDatabase;  /* Name of database holding this table */
-    char *zName;      /* Name of the table */
-    char *zAlias;     /* The "B" part of a "A AS B" phrase.  zName is the "A" */
-    Table *pTab;      /* An SQL table corresponding to zName */
-    Select *pSelect;  /* A SELECT statement used in place of a table name */
-    int addrFillSub;  /* Address of subroutine to manifest a subquery */
-    int regReturn;    /* Register holding return address of addrFillSub */
-    int regResult;    /* Registers holding results of a co-routine */
-    struct {
-      u8 jointype;      /* Type of join between this table and the previous */
-      unsigned notIndexed :1;    /* True if there is a NOT INDEXED clause */
-      unsigned isIndexedBy :1;   /* True if there is an INDEXED BY clause */
-      unsigned isTabFunc :1;     /* True if table-valued-function syntax */
-      unsigned isCorrelated :1;  /* True if sub-query is correlated */
-      unsigned viaCoroutine :1;  /* Implemented as a co-routine */
-      unsigned isRecursive :1;   /* True for recursive reference in WITH */
-      unsigned fromDDL :1;       /* Comes from sqlite_master */
-    } fg;
-    int iCursor;      /* The VDBE cursor number used to access this table */
-    Expr *pOn;        /* The ON clause of a join */
-    IdList *pUsing;   /* The USING clause of a join */
-    Bitmask colUsed;  /* Bit N (1<<N) set if column N of pTab is used */
-    union {
-      char *zIndexedBy;    /* Identifier from "INDEXED BY <zIndex>" clause */
-      ExprList *pFuncArg;  /* Arguments to table-valued-function */
-    } u1;
-    Index *pIBIndex;  /* Index structure corresponding to u1.zIndexedBy */
-  } a[1];             /* One entry for each identifier on the list */
-};
-
-/*
-** Permitted values of the SrcList.a.jointype field
-*/
-#define JT_INNER     0x0001    /* Any kind of inner or cross join */
-#define JT_CROSS     0x0002    /* Explicit use of the CROSS keyword */
-#define JT_NATURAL   0x0004    /* True for a "natural" join */
-#define JT_LEFT      0x0008    /* Left outer join */
-#define JT_RIGHT     0x0010    /* Right outer join */
-#define JT_OUTER     0x0020    /* The "OUTER" keyword is present */
-#define JT_ERROR     0x0040    /* unknown or unsupported join type */
-
-
-/*
-** Flags appropriate for the wctrlFlags parameter of tdsqlite3WhereBegin()
-** and the WhereInfo.wctrlFlags member.
-**
-** Value constraints (enforced via assert()):
-**     WHERE_USE_LIMIT  == SF_FixedLimit
-*/
-#define WHERE_ORDERBY_NORMAL   0x0000 /* No-op */
-#define WHERE_ORDERBY_MIN      0x0001 /* ORDER BY processing for min() func */
-#define WHERE_ORDERBY_MAX      0x0002 /* ORDER BY processing for max() func */
-#define WHERE_ONEPASS_DESIRED  0x0004 /* Want to do one-pass UPDATE/DELETE */
-#define WHERE_ONEPASS_MULTIROW 0x0008 /* ONEPASS is ok with multiple rows */
-#define WHERE_DUPLICATES_OK    0x0010 /* Ok to return a row more than once */
-#define WHERE_OR_SUBCLAUSE     0x0020 /* Processing a sub-WHERE as part of
-                                      ** the OR optimization  */
-#define WHERE_GROUPBY          0x0040 /* pOrderBy is really a GROUP BY */
-#define WHERE_DISTINCTBY       0x0080 /* pOrderby is really a DISTINCT clause */
-#define WHERE_WANT_DISTINCT    0x0100 /* All output needs to be distinct */
-#define WHERE_SORTBYGROUP      0x0200 /* Support tdsqlite3WhereIsSorted() */
-#define WHERE_SEEK_TABLE       0x0400 /* Do not defer seeks on main table */
-#define WHERE_ORDERBY_LIMIT    0x0800 /* ORDERBY+LIMIT on the inner loop */
-#define WHERE_SEEK_UNIQ_TABLE  0x1000 /* Do not defer seeks if unique */
-                        /*     0x2000    not currently used */
-#define WHERE_USE_LIMIT        0x4000 /* Use the LIMIT in cost estimates */
-                        /*     0x8000    not currently used */
-
-/* Allowed return values from tdsqlite3WhereIsDistinct()
-*/
-#define WHERE_DISTINCT_NOOP      0  /* DISTINCT keyword not used */
-#define WHERE_DISTINCT_UNIQUE    1  /* No duplicates */
-#define WHERE_DISTINCT_ORDERED   2  /* All duplicates are adjacent */
-#define WHERE_DISTINCT_UNORDERED 3  /* Duplicates are scattered */
-
-/*
-** A NameContext defines a context in which to resolve table and column
-** names.  The context consists of a list of tables (the pSrcList) field and
-** a list of named expression (pEList).  The named expression list may
-** be NULL.  The pSrc corresponds to the FROM clause of a SELECT or
-** to the table being operated on by INSERT, UPDATE, or DELETE.  The
-** pEList corresponds to the result set of a SELECT and is NULL for
-** other statements.
-**
-** NameContexts can be nested.  When resolving names, the inner-most
-** context is searched first.  If no match is found, the next outer
-** context is checked.  If there is still no match, the next context
-** is checked.  This process continues until either a match is found
-** or all contexts are check.  When a match is found, the nRef member of
-** the context containing the match is incremented.
-**
-** Each subquery gets a new NameContext.  The pNext field points to the
-** NameContext in the parent query.  Thus the process of scanning the
-** NameContext list corresponds to searching through successively outer
-** subqueries looking for a match.
-*/
-struct NameContext {
-  Parse *pParse;       /* The parser */
-  SrcList *pSrcList;   /* One or more tables used to resolve names */
-  union {
-    ExprList *pEList;    /* Optional list of result-set columns */
-    AggInfo *pAggInfo;   /* Information about aggregates at this level */
-    Upsert *pUpsert;     /* ON CONFLICT clause information from an upsert */
-  } uNC;
-  NameContext *pNext;  /* Next outer name context.  NULL for outermost */
-  int nRef;            /* Number of names resolved by this context */
-  int nErr;            /* Number of errors encountered while resolving names */
-  int ncFlags;         /* Zero or more NC_* flags defined below */
-  Select *pWinSelect;  /* SELECT statement for any window functions */
-};
-
-/*
-** Allowed values for the NameContext, ncFlags field.
-**
-** Value constraints (all checked via assert()):
-**    NC_HasAgg    == SF_HasAgg    == EP_Agg
-**    NC_MinMaxAgg == SF_MinMaxAgg == SQLITE_FUNC_MINMAX
-**    NC_HasWin    == EP_Win
-**
-*/
-#define NC_AllowAgg  0x00001  /* Aggregate functions are allowed here */
-#define NC_PartIdx   0x00002  /* True if resolving a partial index WHERE */
-#define NC_IsCheck   0x00004  /* True if resolving a CHECK constraint */
-#define NC_GenCol    0x00008  /* True for a GENERATED ALWAYS AS clause */
-#define NC_HasAgg    0x00010  /* One or more aggregate functions seen */
-#define NC_IdxExpr   0x00020  /* True if resolving columns of CREATE INDEX */
-#define NC_SelfRef   0x0002e  /* Combo: PartIdx, isCheck, GenCol, and IdxExpr */
-#define NC_VarSelect 0x00040  /* A correlated subquery has been seen */
-#define NC_UEList    0x00080  /* True if uNC.pEList is used */
-#define NC_UAggInfo  0x00100  /* True if uNC.pAggInfo is used */
-#define NC_UUpsert   0x00200  /* True if uNC.pUpsert is used */
-#define NC_MinMaxAgg 0x01000  /* min/max aggregates seen.  See note above */
-#define NC_Complex   0x02000  /* True if a function or subquery seen */
-#define NC_AllowWin  0x04000  /* Window functions are allowed here */
-#define NC_HasWin    0x08000  /* One or more window functions seen */
-#define NC_IsDDL     0x10000  /* Resolving names in a CREATE statement */
-#define NC_InAggFunc 0x20000  /* True if analyzing arguments to an agg func */
-#define NC_FromDDL   0x40000  /* SQL text comes from sqlite_master */
-
-/*
-** An instance of the following object describes a single ON CONFLICT
-** clause in an upsert.
-**
-** The pUpsertTarget field is only set if the ON CONFLICT clause includes
-** conflict-target clause.  (In "ON CONFLICT(a,b)" the "(a,b)" is the
-** conflict-target clause.)  The pUpsertTargetWhere is the optional
-** WHERE clause used to identify partial unique indexes.
-**
-** pUpsertSet is the list of column=expr terms of the UPDATE statement. 
-** The pUpsertSet field is NULL for a ON CONFLICT DO NOTHING.  The
-** pUpsertWhere is the WHERE clause for the UPDATE and is NULL if the
-** WHERE clause is omitted.
-*/
-struct Upsert {
-  ExprList *pUpsertTarget;  /* Optional description of conflicting index */
-  Expr *pUpsertTargetWhere; /* WHERE clause for partial index targets */
-  ExprList *pUpsertSet;     /* The SET clause from an ON CONFLICT UPDATE */
-  Expr *pUpsertWhere;       /* WHERE clause for the ON CONFLICT UPDATE */
-  /* The fields above comprise the parse tree for the upsert clause.
-  ** The fields below are used to transfer information from the INSERT
-  ** processing down into the UPDATE processing while generating code.
-  ** Upsert owns the memory allocated above, but not the memory below. */
-  Index *pUpsertIdx;        /* Constraint that pUpsertTarget identifies */
-  SrcList *pUpsertSrc;      /* Table to be updated */
-  int regData;              /* First register holding array of VALUES */
-  int iDataCur;             /* Index of the data cursor */
-  int iIdxCur;              /* Index of the first index cursor */
-};
-
-/*
-** An instance of the following structure contains all information
-** needed to generate code for a single SELECT statement.
-**
-** See the header comment on the computeLimitRegisters() routine for a
-** detailed description of the meaning of the iLimit and iOffset fields.
-**
-** addrOpenEphm[] entries contain the address of OP_OpenEphemeral opcodes.
-** These addresses must be stored so that we can go back and fill in
-** the P4_KEYINFO and P2 parameters later.  Neither the KeyInfo nor
-** the number of columns in P2 can be computed at the same time
-** as the OP_OpenEphm instruction is coded because not
-** enough information about the compound query is known at that point.
-** The KeyInfo for addrOpenTran[0] and [1] contains collating sequences
-** for the result set.  The KeyInfo for addrOpenEphm[2] contains collating
-** sequences for the ORDER BY clause.
-*/
-struct Select {
-  u8 op;                 /* One of: TK_UNION TK_ALL TK_INTERSECT TK_EXCEPT */
-  LogEst nSelectRow;     /* Estimated number of result rows */
-  u32 selFlags;          /* Various SF_* values */
-  int iLimit, iOffset;   /* Memory registers holding LIMIT & OFFSET counters */
-  u32 selId;             /* Unique identifier number for this SELECT */
-  int addrOpenEphm[2];   /* OP_OpenEphem opcodes related to this select */
-  ExprList *pEList;      /* The fields of the result */
-  SrcList *pSrc;         /* The FROM clause */
-  Expr *pWhere;          /* The WHERE clause */
-  ExprList *pGroupBy;    /* The GROUP BY clause */
-  Expr *pHaving;         /* The HAVING clause */
-  ExprList *pOrderBy;    /* The ORDER BY clause */
-  Select *pPrior;        /* Prior select in a compound select statement */
-  Select *pNext;         /* Next select to the left in a compound */
-  Expr *pLimit;          /* LIMIT expression. NULL means not used. */
-  With *pWith;           /* WITH clause attached to this select. Or NULL. */
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  Window *pWin;          /* List of window functions */
-  Window *pWinDefn;      /* List of named window definitions */
-#endif
-};
-
-/*
-** Allowed values for Select.selFlags.  The "SF" prefix stands for
-** "Select Flag".
-**
-** Value constraints (all checked via assert())
-**     SF_HasAgg     == NC_HasAgg
-**     SF_MinMaxAgg  == NC_MinMaxAgg     == SQLITE_FUNC_MINMAX
-**     SF_FixedLimit == WHERE_USE_LIMIT
-*/
-#define SF_Distinct      0x0000001 /* Output should be DISTINCT */
-#define SF_All           0x0000002 /* Includes the ALL keyword */
-#define SF_Resolved      0x0000004 /* Identifiers have been resolved */
-#define SF_Aggregate     0x0000008 /* Contains agg functions or a GROUP BY */
-#define SF_HasAgg        0x0000010 /* Contains aggregate functions */
-#define SF_UsesEphemeral 0x0000020 /* Uses the OpenEphemeral opcode */
-#define SF_Expanded      0x0000040 /* tdsqlite3SelectExpand() called on this */
-#define SF_HasTypeInfo   0x0000080 /* FROM subqueries have Table metadata */
-#define SF_Compound      0x0000100 /* Part of a compound query */
-#define SF_Values        0x0000200 /* Synthesized from VALUES clause */
-#define SF_MultiValue    0x0000400 /* Single VALUES term with multiple rows */
-#define SF_NestedFrom    0x0000800 /* Part of a parenthesized FROM clause */
-#define SF_MinMaxAgg     0x0001000 /* Aggregate containing min() or max() */
-#define SF_Recursive     0x0002000 /* The recursive part of a recursive CTE */
-#define SF_FixedLimit    0x0004000 /* nSelectRow set by a constant LIMIT */
-#define SF_MaybeConvert  0x0008000 /* Need convertCompoundSelectToSubquery() */
-#define SF_Converted     0x0010000 /* By convertCompoundSelectToSubquery() */
-#define SF_IncludeHidden 0x0020000 /* Include hidden columns in output */
-#define SF_ComplexResult 0x0040000 /* Result contains subquery or function */
-#define SF_WhereBegin    0x0080000 /* Really a WhereBegin() call.  Debug Only */
-#define SF_WinRewrite    0x0100000 /* Window function rewrite accomplished */
-#define SF_View          0x0200000 /* SELECT statement is a view */
-
-/*
-** The results of a SELECT can be distributed in several ways, as defined
-** by one of the following macros.  The "SRT" prefix means "SELECT Result
-** Type".
-**
-**     SRT_Union       Store results as a key in a temporary index
-**                     identified by pDest->iSDParm.
-**
-**     SRT_Except      Remove results from the temporary index pDest->iSDParm.
-**
-**     SRT_Exists      Store a 1 in memory cell pDest->iSDParm if the result
-**                     set is not empty.
-**
-**     SRT_Discard     Throw the results away.  This is used by SELECT
-**                     statements within triggers whose only purpose is
-**                     the side-effects of functions.
-**
-** All of the above are free to ignore their ORDER BY clause. Those that
-** follow must honor the ORDER BY clause.
-**
-**     SRT_Output      Generate a row of output (using the OP_ResultRow
-**                     opcode) for each row in the result set.
-**
-**     SRT_Mem         Only valid if the result is a single column.
-**                     Store the first column of the first result row
-**                     in register pDest->iSDParm then abandon the rest
-**                     of the query.  This destination implies "LIMIT 1".
-**
-**     SRT_Set         The result must be a single column.  Store each
-**                     row of result as the key in table pDest->iSDParm.
-**                     Apply the affinity pDest->affSdst before storing
-**                     results.  Used to implement "IN (SELECT ...)".
-**
-**     SRT_EphemTab    Create an temporary table pDest->iSDParm and store
-**                     the result there. The cursor is left open after
-**                     returning.  This is like SRT_Table except that
-**                     this destination uses OP_OpenEphemeral to create
-**                     the table first.
-**
-**     SRT_Coroutine   Generate a co-routine that returns a new row of
-**                     results each time it is invoked.  The entry point
-**                     of the co-routine is stored in register pDest->iSDParm
-**                     and the result row is stored in pDest->nDest registers
-**                     starting with pDest->iSdst.
-**
-**     SRT_Table       Store results in temporary table pDest->iSDParm.
-**     SRT_Fifo        This is like SRT_EphemTab except that the table
-**                     is assumed to already be open.  SRT_Fifo has
-**                     the additional property of being able to ignore
-**                     the ORDER BY clause.
-**
-**     SRT_DistFifo    Store results in a temporary table pDest->iSDParm.
-**                     But also use temporary table pDest->iSDParm+1 as
-**                     a record of all prior results and ignore any duplicate
-**                     rows.  Name means:  "Distinct Fifo".
-**
-**     SRT_Queue       Store results in priority queue pDest->iSDParm (really
-**                     an index).  Append a sequence number so that all entries
-**                     are distinct.
-**
-**     SRT_DistQueue   Store results in priority queue pDest->iSDParm only if
-**                     the same record has never been stored before.  The
-**                     index at pDest->iSDParm+1 hold all prior stores.
-*/
-#define SRT_Union        1  /* Store result as keys in an index */
-#define SRT_Except       2  /* Remove result from a UNION index */
-#define SRT_Exists       3  /* Store 1 if the result is not empty */
-#define SRT_Discard      4  /* Do not save the results anywhere */
-#define SRT_Fifo         5  /* Store result as data with an automatic rowid */
-#define SRT_DistFifo     6  /* Like SRT_Fifo, but unique results only */
-#define SRT_Queue        7  /* Store result in an queue */
-#define SRT_DistQueue    8  /* Like SRT_Queue, but unique results only */
-
-/* The ORDER BY clause is ignored for all of the above */
-#define IgnorableOrderby(X) ((X->eDest)<=SRT_DistQueue)
-
-#define SRT_Output       9  /* Output each row of result */
-#define SRT_Mem         10  /* Store result in a memory cell */
-#define SRT_Set         11  /* Store results as keys in an index */
-#define SRT_EphemTab    12  /* Create transient tab and store like SRT_Table */
-#define SRT_Coroutine   13  /* Generate a single row of result */
-#define SRT_Table       14  /* Store result as data with an automatic rowid */
-
-/*
-** An instance of this object describes where to put of the results of
-** a SELECT statement.
-*/
-struct SelectDest {
-  u8 eDest;            /* How to dispose of the results.  On of SRT_* above. */
-  int iSDParm;         /* A parameter used by the eDest disposal method */
-  int iSdst;           /* Base register where results are written */
-  int nSdst;           /* Number of registers allocated */
-  char *zAffSdst;      /* Affinity used when eDest==SRT_Set */
-  ExprList *pOrderBy;  /* Key columns for SRT_Queue and SRT_DistQueue */
-};
-
-/*
-** During code generation of statements that do inserts into AUTOINCREMENT
-** tables, the following information is attached to the Table.u.autoInc.p
-** pointer of each autoincrement table to record some side information that
-** the code generator needs.  We have to keep per-table autoincrement
-** information in case inserts are done within triggers.  Triggers do not
-** normally coordinate their activities, but we do need to coordinate the
-** loading and saving of autoincrement information.
-*/
-struct AutoincInfo {
-  AutoincInfo *pNext;   /* Next info block in a list of them all */
-  Table *pTab;          /* Table this info block refers to */
-  int iDb;              /* Index in sqlite3.aDb[] of database holding pTab */
-  int regCtr;           /* Memory register holding the rowid counter */
-};
-
-/*
-** At least one instance of the following structure is created for each
-** trigger that may be fired while parsing an INSERT, UPDATE or DELETE
-** statement. All such objects are stored in the linked list headed at
-** Parse.pTriggerPrg and deleted once statement compilation has been
-** completed.
-**
-** A Vdbe sub-program that implements the body and WHEN clause of trigger
-** TriggerPrg.pTrigger, assuming a default ON CONFLICT clause of
-** TriggerPrg.orconf, is stored in the TriggerPrg.pProgram variable.
-** The Parse.pTriggerPrg list never contains two entries with the same
-** values for both pTrigger and orconf.
-**
-** The TriggerPrg.aColmask[0] variable is set to a mask of old.* columns
-** accessed (or set to 0 for triggers fired as a result of INSERT
-** statements). Similarly, the TriggerPrg.aColmask[1] variable is set to
-** a mask of new.* columns used by the program.
-*/
-struct TriggerPrg {
-  Trigger *pTrigger;      /* Trigger this program was coded from */
-  TriggerPrg *pNext;      /* Next entry in Parse.pTriggerPrg list */
-  SubProgram *pProgram;   /* Program implementing pTrigger/orconf */
-  int orconf;             /* Default ON CONFLICT policy */
-  u32 aColmask[2];        /* Masks of old.*, new.* columns accessed */
-};
-
-/*
-** The yDbMask datatype for the bitmask of all attached databases.
-*/
-#if SQLITE_MAX_ATTACHED>30
-  typedef unsigned char yDbMask[(SQLITE_MAX_ATTACHED+9)/8];
-# define DbMaskTest(M,I)    (((M)[(I)/8]&(1<<((I)&7)))!=0)
-# define DbMaskZero(M)      memset((M),0,sizeof(M))
-# define DbMaskSet(M,I)     (M)[(I)/8]|=(1<<((I)&7))
-# define DbMaskAllZero(M)   tdsqlite3DbMaskAllZero(M)
-# define DbMaskNonZero(M)   (tdsqlite3DbMaskAllZero(M)==0)
-#else
-  typedef unsigned int yDbMask;
-# define DbMaskTest(M,I)    (((M)&(((yDbMask)1)<<(I)))!=0)
-# define DbMaskZero(M)      (M)=0
-# define DbMaskSet(M,I)     (M)|=(((yDbMask)1)<<(I))
-# define DbMaskAllZero(M)   (M)==0
-# define DbMaskNonZero(M)   (M)!=0
-#endif
-
-/*
-** An SQL parser context.  A copy of this structure is passed through
-** the parser and down into all the parser action routine in order to
-** carry around information that is global to the entire parse.
-**
-** The structure is divided into two parts.  When the parser and code
-** generate call themselves recursively, the first part of the structure
-** is constant but the second part is reset at the beginning and end of
-** each recursion.
-**
-** The nTableLock and aTableLock variables are only used if the shared-cache
-** feature is enabled (if tdsqlite3Tsd()->useSharedData is true). They are
-** used to store the set of table-locks required by the statement being
-** compiled. Function tdsqlite3TableLock() is used to add entries to the
-** list.
-*/
-struct Parse {
-  tdsqlite3 *db;         /* The main database structure */
-  char *zErrMsg;       /* An error message */
-  Vdbe *pVdbe;         /* An engine for executing database bytecode */
-  int rc;              /* Return code from execution */
-  u8 colNamesSet;      /* TRUE after OP_ColumnName has been issued to pVdbe */
-  u8 checkSchema;      /* Causes schema cookie check after an error */
-  u8 nested;           /* Number of nested calls to the parser/code generator */
-  u8 nTempReg;         /* Number of temporary registers in aTempReg[] */
-  u8 isMultiWrite;     /* True if statement may modify/insert multiple rows */
-  u8 mayAbort;         /* True if statement may throw an ABORT exception */
-  u8 hasCompound;      /* Need to invoke convertCompoundSelectToSubquery() */
-  u8 okConstFactor;    /* OK to factor out constants */
-  u8 disableLookaside; /* Number of times lookaside has been disabled */
-  u8 disableVtab;      /* Disable all virtual tables for this parse */
-  int nRangeReg;       /* Size of the temporary register block */
-  int iRangeReg;       /* First register in temporary register block */
-  int nErr;            /* Number of errors seen */
-  int nTab;            /* Number of previously allocated VDBE cursors */
-  int nMem;            /* Number of memory cells used so far */
-  int szOpAlloc;       /* Bytes of memory space allocated for Vdbe.aOp[] */
-  int iSelfTab;        /* Table associated with an index on expr, or negative
-                       ** of the base register during check-constraint eval */
-  int nLabel;          /* The *negative* of the number of labels used */
-  int nLabelAlloc;     /* Number of slots in aLabel */
-  int *aLabel;         /* Space to hold the labels */
-  ExprList *pConstExpr;/* Constant expressions */
-  Token constraintName;/* Name of the constraint currently being parsed */
-  yDbMask writeMask;   /* Start a write transaction on these databases */
-  yDbMask cookieMask;  /* Bitmask of schema verified databases */
-  int regRowid;        /* Register holding rowid of CREATE TABLE entry */
-  int regRoot;         /* Register holding root page number for new objects */
-  int nMaxArg;         /* Max args passed to user function by sub-program */
-  int nSelect;         /* Number of SELECT stmts. Counter for Select.selId */
-#ifndef SQLITE_OMIT_SHARED_CACHE
-  int nTableLock;        /* Number of locks in aTableLock */
-  TableLock *aTableLock; /* Required table locks for shared-cache mode */
-#endif
-  AutoincInfo *pAinc;  /* Information about AUTOINCREMENT counters */
-  Parse *pToplevel;    /* Parse structure for main program (or NULL) */
-  Table *pTriggerTab;  /* Table triggers are being coded for */
-  Parse *pParentParse; /* Parent parser if this parser is nested */
-  int addrCrTab;       /* Address of OP_CreateBtree opcode on CREATE TABLE */
-  u32 nQueryLoop;      /* Est number of iterations of a query (10*log2(N)) */
-  u32 oldmask;         /* Mask of old.* columns referenced */
-  u32 newmask;         /* Mask of new.* columns referenced */
-  u8 eTriggerOp;       /* TK_UPDATE, TK_INSERT or TK_DELETE */
-  u8 eOrconf;          /* Default ON CONFLICT policy for trigger steps */
-  u8 disableTriggers;  /* True to disable triggers */
-
-  /**************************************************************************
-  ** Fields above must be initialized to zero.  The fields that follow,
-  ** down to the beginning of the recursive section, do not need to be
-  ** initialized as they will be set before being used.  The boundary is
-  ** determined by offsetof(Parse,aTempReg).
-  **************************************************************************/
-
-  int aTempReg[8];        /* Holding area for temporary registers */
-  Token sNameToken;       /* Token with unqualified schema object name */
-
-  /************************************************************************
-  ** Above is constant between recursions.  Below is reset before and after
-  ** each recursion.  The boundary between these two regions is determined
-  ** using offsetof(Parse,sLastToken) so the sLastToken field must be the
-  ** first field in the recursive region.
-  ************************************************************************/
-
-  Token sLastToken;       /* The last token parsed */
-  ynVar nVar;               /* Number of '?' variables seen in the SQL so far */
-  u8 iPkSortOrder;          /* ASC or DESC for INTEGER PRIMARY KEY */
-  u8 explain;               /* True if the EXPLAIN flag is found on the query */
-#if !(defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_OMIT_ALTERTABLE))
-  u8 eParseMode;            /* PARSE_MODE_XXX constant */
-#endif
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  int nVtabLock;            /* Number of virtual tables to lock */
-#endif
-  int nHeight;              /* Expression tree height of current sub-select */
-#ifndef SQLITE_OMIT_EXPLAIN
-  int addrExplain;          /* Address of current OP_Explain opcode */
-#endif
-  VList *pVList;            /* Mapping between variable names and numbers */
-  Vdbe *pReprepare;         /* VM being reprepared (tdsqlite3Reprepare()) */
-  const char *zTail;        /* All SQL text past the last semicolon parsed */
-  Table *pNewTable;         /* A table being constructed by CREATE TABLE */
-  Index *pNewIndex;         /* An index being constructed by CREATE INDEX.
-                            ** Also used to hold redundant UNIQUE constraints
-                            ** during a RENAME COLUMN */
-  Trigger *pNewTrigger;     /* Trigger under construct by a CREATE TRIGGER */
-  const char *zAuthContext; /* The 6th parameter to db->xAuth callbacks */
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  Token sArg;               /* Complete text of a module argument */
-  Table **apVtabLock;       /* Pointer to virtual tables needing locking */
-#endif
-  Table *pZombieTab;        /* List of Table objects to delete after code gen */
-  TriggerPrg *pTriggerPrg;  /* Linked list of coded triggers */
-  With *pWith;              /* Current WITH clause, or NULL */
-  With *pWithToFree;        /* Free this WITH object at the end of the parse */
-#ifndef SQLITE_OMIT_ALTERTABLE
-  RenameToken *pRename;     /* Tokens subject to renaming by ALTER TABLE */
-#endif
-};
-
-#define PARSE_MODE_NORMAL        0
-#define PARSE_MODE_DECLARE_VTAB  1
-#define PARSE_MODE_RENAME        2
-#define PARSE_MODE_UNMAP         3
-
-/*
-** Sizes and pointers of various parts of the Parse object.
-*/
-#define PARSE_HDR_SZ offsetof(Parse,aTempReg) /* Recursive part w/o aColCache*/
-#define PARSE_RECURSE_SZ offsetof(Parse,sLastToken)    /* Recursive part */
-#define PARSE_TAIL_SZ (sizeof(Parse)-PARSE_RECURSE_SZ) /* Non-recursive part */
-#define PARSE_TAIL(X) (((char*)(X))+PARSE_RECURSE_SZ)  /* Pointer to tail */
-
-/*
-** Return true if currently inside an tdsqlite3_declare_vtab() call.
-*/
-#ifdef SQLITE_OMIT_VIRTUALTABLE
-  #define IN_DECLARE_VTAB 0
-#else
-  #define IN_DECLARE_VTAB (pParse->eParseMode==PARSE_MODE_DECLARE_VTAB)
-#endif
-
-#if defined(SQLITE_OMIT_ALTERTABLE)
-  #define IN_RENAME_OBJECT 0
-#else
-  #define IN_RENAME_OBJECT (pParse->eParseMode>=PARSE_MODE_RENAME)
-#endif
-
-#if defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_OMIT_ALTERTABLE)
-  #define IN_SPECIAL_PARSE 0
-#else
-  #define IN_SPECIAL_PARSE (pParse->eParseMode!=PARSE_MODE_NORMAL)
-#endif
-
-/*
-** An instance of the following structure can be declared on a stack and used
-** to save the Parse.zAuthContext value so that it can be restored later.
-*/
-struct AuthContext {
-  const char *zAuthContext;   /* Put saved Parse.zAuthContext here */
-  Parse *pParse;              /* The Parse structure */
-};
-
-/*
-** Bitfield flags for P5 value in various opcodes.
-**
-** Value constraints (enforced via assert()):
-**    OPFLAG_LENGTHARG    == SQLITE_FUNC_LENGTH
-**    OPFLAG_TYPEOFARG    == SQLITE_FUNC_TYPEOF
-**    OPFLAG_BULKCSR      == BTREE_BULKLOAD
-**    OPFLAG_SEEKEQ       == BTREE_SEEK_EQ
-**    OPFLAG_FORDELETE    == BTREE_FORDELETE
-**    OPFLAG_SAVEPOSITION == BTREE_SAVEPOSITION
-**    OPFLAG_AUXDELETE    == BTREE_AUXDELETE
-*/
-#define OPFLAG_NCHANGE       0x01    /* OP_Insert: Set to update db->nChange */
-                                     /* Also used in P2 (not P5) of OP_Delete */
-#define OPFLAG_NOCHNG        0x01    /* OP_VColumn nochange for UPDATE */
-#define OPFLAG_EPHEM         0x01    /* OP_Column: Ephemeral output is ok */
-#define OPFLAG_LASTROWID     0x20    /* Set to update db->lastRowid */
-#define OPFLAG_ISUPDATE      0x04    /* This OP_Insert is an sql UPDATE */
-#define OPFLAG_APPEND        0x08    /* This is likely to be an append */
-#define OPFLAG_USESEEKRESULT 0x10    /* Try to avoid a seek in BtreeInsert() */
-#define OPFLAG_ISNOOP        0x40    /* OP_Delete does pre-update-hook only */
-#define OPFLAG_LENGTHARG     0x40    /* OP_Column only used for length() */
-#define OPFLAG_TYPEOFARG     0x80    /* OP_Column only used for typeof() */
-#define OPFLAG_BULKCSR       0x01    /* OP_Open** used to open bulk cursor */
-#define OPFLAG_SEEKEQ        0x02    /* OP_Open** cursor uses EQ seek only */
-#define OPFLAG_FORDELETE     0x08    /* OP_Open should use BTREE_FORDELETE */
-#define OPFLAG_P2ISREG       0x10    /* P2 to OP_Open** is a register number */
-#define OPFLAG_PERMUTE       0x01    /* OP_Compare: use the permutation */
-#define OPFLAG_SAVEPOSITION  0x02    /* OP_Delete/Insert: save cursor pos */
-#define OPFLAG_AUXDELETE     0x04    /* OP_Delete: index in a DELETE op */
-#define OPFLAG_NOCHNG_MAGIC  0x6d    /* OP_MakeRecord: serialtype 10 is ok */
-
-/*
- * Each trigger present in the database schema is stored as an instance of
- * struct Trigger.
- *
- * Pointers to instances of struct Trigger are stored in two ways.
- * 1. In the "trigHash" hash table (part of the tdsqlite3* that represents the
- *    database). This allows Trigger structures to be retrieved by name.
- * 2. All triggers associated with a single table form a linked list, using the
- *    pNext member of struct Trigger. A pointer to the first element of the
- *    linked list is stored as the "pTrigger" member of the associated
- *    struct Table.
- *
- * The "step_list" member points to the first element of a linked list
- * containing the SQL statements specified as the trigger program.
- */
-struct Trigger {
-  char *zName;            /* The name of the trigger                        */
-  char *table;            /* The table or view to which the trigger applies */
-  u8 op;                  /* One of TK_DELETE, TK_UPDATE, TK_INSERT         */
-  u8 tr_tm;               /* One of TRIGGER_BEFORE, TRIGGER_AFTER */
-  Expr *pWhen;            /* The WHEN clause of the expression (may be NULL) */
-  IdList *pColumns;       /* If this is an UPDATE OF <column-list> trigger,
-                             the <column-list> is stored here */
-  Schema *pSchema;        /* Schema containing the trigger */
-  Schema *pTabSchema;     /* Schema containing the table */
-  TriggerStep *step_list; /* Link list of trigger program steps             */
-  Trigger *pNext;         /* Next trigger associated with the table */
-};
-
-/*
-** A trigger is either a BEFORE or an AFTER trigger.  The following constants
-** determine which.
-**
-** If there are multiple triggers, you might of some BEFORE and some AFTER.
-** In that cases, the constants below can be ORed together.
-*/
-#define TRIGGER_BEFORE  1
-#define TRIGGER_AFTER   2
-
-/*
- * An instance of struct TriggerStep is used to store a single SQL statement
- * that is a part of a trigger-program.
- *
- * Instances of struct TriggerStep are stored in a singly linked list (linked
- * using the "pNext" member) referenced by the "step_list" member of the
- * associated struct Trigger instance. The first element of the linked list is
- * the first step of the trigger-program.
- *
- * The "op" member indicates whether this is a "DELETE", "INSERT", "UPDATE" or
- * "SELECT" statement. The meanings of the other members is determined by the
- * value of "op" as follows:
- *
- * (op == TK_INSERT)
- * orconf    -> stores the ON CONFLICT algorithm
- * pSelect   -> If this is an INSERT INTO ... SELECT ... statement, then
- *              this stores a pointer to the SELECT statement. Otherwise NULL.
- * zTarget   -> Dequoted name of the table to insert into.
- * pExprList -> If this is an INSERT INTO ... VALUES ... statement, then
- *              this stores values to be inserted. Otherwise NULL.
- * pIdList   -> If this is an INSERT INTO ... (<column-names>) VALUES ...
- *              statement, then this stores the column-names to be
- *              inserted into.
- *
- * (op == TK_DELETE)
- * zTarget   -> Dequoted name of the table to delete from.
- * pWhere    -> The WHERE clause of the DELETE statement if one is specified.
- *              Otherwise NULL.
- *
- * (op == TK_UPDATE)
- * zTarget   -> Dequoted name of the table to update.
- * pWhere    -> The WHERE clause of the UPDATE statement if one is specified.
- *              Otherwise NULL.
- * pExprList -> A list of the columns to update and the expressions to update
- *              them to. See tdsqlite3Update() documentation of "pChanges"
- *              argument.
- *
- */
-struct TriggerStep {
-  u8 op;               /* One of TK_DELETE, TK_UPDATE, TK_INSERT, TK_SELECT */
-  u8 orconf;           /* OE_Rollback etc. */
-  Trigger *pTrig;      /* The trigger that this step is a part of */
-  Select *pSelect;     /* SELECT statement or RHS of INSERT INTO SELECT ... */
-  char *zTarget;       /* Target table for DELETE, UPDATE, INSERT */
-  Expr *pWhere;        /* The WHERE clause for DELETE or UPDATE steps */
-  ExprList *pExprList; /* SET clause for UPDATE */
-  IdList *pIdList;     /* Column names for INSERT */
-  Upsert *pUpsert;     /* Upsert clauses on an INSERT */
-  char *zSpan;         /* Original SQL text of this command */
-  TriggerStep *pNext;  /* Next in the link-list */
-  TriggerStep *pLast;  /* Last element in link-list. Valid for 1st elem only */
-};
-
-/*
-** The following structure contains information used by the sqliteFix...
-** routines as they walk the parse tree to make database references
-** explicit.
-*/
-typedef struct DbFixer DbFixer;
-struct DbFixer {
-  Parse *pParse;      /* The parsing context.  Error messages written here */
-  Schema *pSchema;    /* Fix items to this schema */
-  u8 bTemp;           /* True for TEMP schema entries */
-  const char *zDb;    /* Make sure all objects are contained in this database */
-  const char *zType;  /* Type of the container - used for error messages */
-  const Token *pName; /* Name of the container - used for error messages */
-};
-
-/*
-** An objected used to accumulate the text of a string where we
-** do not necessarily know how big the string will be in the end.
-*/
-struct tdsqlite3_str {
-  tdsqlite3 *db;         /* Optional database for lookaside.  Can be NULL */
-  char *zText;         /* The string collected so far */
-  u32  nAlloc;         /* Amount of space allocated in zText */
-  u32  mxAlloc;        /* Maximum allowed allocation.  0 for no malloc usage */
-  u32  nChar;          /* Length of the string so far */
-  u8   accError;       /* SQLITE_NOMEM or SQLITE_TOOBIG */
-  u8   printfFlags;    /* SQLITE_PRINTF flags below */
-};
-#define SQLITE_PRINTF_INTERNAL 0x01  /* Internal-use-only converters allowed */
-#define SQLITE_PRINTF_SQLFUNC  0x02  /* SQL function arguments to VXPrintf */
-#define SQLITE_PRINTF_MALLOCED 0x04  /* True if xText is allocated space */
-
-#define isMalloced(X)  (((X)->printfFlags & SQLITE_PRINTF_MALLOCED)!=0)
-
-
-/*
-** A pointer to this structure is used to communicate information
-** from tdsqlite3Init and OP_ParseSchema into the tdsqlite3InitCallback.
-*/
-typedef struct {
-  tdsqlite3 *db;        /* The database being initialized */
-  char **pzErrMsg;    /* Error message stored here */
-  int iDb;            /* 0 for main database.  1 for TEMP, 2.. for ATTACHed */
-  int rc;             /* Result code stored here */
-  u32 mInitFlags;     /* Flags controlling error messages */
-  u32 nInitRow;       /* Number of rows processed */
-} InitData;
-
-/*
-** Allowed values for mInitFlags
-*/
-#define INITFLAG_AlterTable   0x0001  /* This is a reparse after ALTER TABLE */
-
-/*
-** Structure containing global configuration data for the SQLite library.
-**
-** This structure also contains some state information.
-*/
-struct Sqlite3Config {
-  int bMemstat;                     /* True to enable memory status */
-  u8 bCoreMutex;                    /* True to enable core mutexing */
-  u8 bFullMutex;                    /* True to enable full mutexing */
-  u8 bOpenUri;                      /* True to interpret filenames as URIs */
-  u8 bUseCis;                       /* Use covering indices for full-scans */
-  u8 bSmallMalloc;                  /* Avoid large memory allocations if true */
-  u8 bExtraSchemaChecks;            /* Verify type,name,tbl_name in schema */
-  int mxStrlen;                     /* Maximum string length */
-  int neverCorrupt;                 /* Database is always well-formed */
-  int szLookaside;                  /* Default lookaside buffer size */
-  int nLookaside;                   /* Default lookaside buffer count */
-  int nStmtSpill;                   /* Stmt-journal spill-to-disk threshold */
-  tdsqlite3_mem_methods m;            /* Low-level memory allocation interface */
-  tdsqlite3_mutex_methods mutex;      /* Low-level mutex interface */
-  tdsqlite3_pcache_methods2 pcache2;  /* Low-level page-cache interface */
-  void *pHeap;                      /* Heap storage space */
-  int nHeap;                        /* Size of pHeap[] */
-  int mnReq, mxReq;                 /* Min and max heap requests sizes */
-  tdsqlite3_int64 szMmap;             /* mmap() space per open file */
-  tdsqlite3_int64 mxMmap;             /* Maximum value for szMmap */
-  void *pPage;                      /* Page cache memory */
-  int szPage;                       /* Size of each page in pPage[] */
-  int nPage;                        /* Number of pages in pPage[] */
-  int mxParserStack;                /* maximum depth of the parser stack */
-  int sharedCacheEnabled;           /* true if shared-cache mode enabled */
-  u32 szPma;                        /* Maximum Sorter PMA size */
-  /* The above might be initialized to non-zero.  The following need to always
-  ** initially be zero, however. */
-  int isInit;                       /* True after initialization has finished */
-  int inProgress;                   /* True while initialization in progress */
-  int isMutexInit;                  /* True after mutexes are initialized */
-  int isMallocInit;                 /* True after malloc is initialized */
-  int isPCacheInit;                 /* True after malloc is initialized */
-  int nRefInitMutex;                /* Number of users of pInitMutex */
-  tdsqlite3_mutex *pInitMutex;        /* Mutex used by tdsqlite3_initialize() */
-  void (*xLog)(void*,int,const char*); /* Function for logging */
-  void *pLogArg;                       /* First argument to xLog() */
-#ifdef SQLITE_ENABLE_SQLLOG
-  void(*xSqllog)(void*,tdsqlite3*,const char*, int);
-  void *pSqllogArg;
-#endif
-#ifdef SQLITE_VDBE_COVERAGE
-  /* The following callback (if not NULL) is invoked on every VDBE branch
-  ** operation.  Set the callback using SQLITE_TESTCTRL_VDBE_COVERAGE.
-  */
-  void (*xVdbeBranch)(void*,unsigned iSrcLine,u8 eThis,u8 eMx);  /* Callback */
-  void *pVdbeBranchArg;                                     /* 1st argument */
-#endif
-#ifdef SQLITE_ENABLE_DESERIALIZE
-  tdsqlite3_int64 mxMemdbSize;        /* Default max memdb size */
-#endif
-#ifndef SQLITE_UNTESTABLE
-  int (*xTestCallback)(int);        /* Invoked by tdsqlite3FaultSim() */
-#endif
-  int bLocaltimeFault;              /* True to fail localtime() calls */
-  int iOnceResetThreshold;          /* When to reset OP_Once counters */
-  u32 szSorterRef;                  /* Min size in bytes to use sorter-refs */
-  unsigned int iPrngSeed;           /* Alternative fixed seed for the PRNG */
-};
-
-/*
-** This macro is used inside of assert() statements to indicate that
-** the assert is only valid on a well-formed database.  Instead of:
-**
-**     assert( X );
-**
-** One writes:
-**
-**     assert( X || CORRUPT_DB );
-**
-** CORRUPT_DB is true during normal operation.  CORRUPT_DB does not indicate
-** that the database is definitely corrupt, only that it might be corrupt.
-** For most test cases, CORRUPT_DB is set to false using a special
-** tdsqlite3_test_control().  This enables assert() statements to prove
-** things that are always true for well-formed databases.
-*/
-#define CORRUPT_DB  (tdsqlite3Config.neverCorrupt==0)
-
-/*
-** Context pointer passed down through the tree-walk.
-*/
-struct Walker {
-  Parse *pParse;                            /* Parser context.  */
-  int (*xExprCallback)(Walker*, Expr*);     /* Callback for expressions */
-  int (*xSelectCallback)(Walker*,Select*);  /* Callback for SELECTs */
-  void (*xSelectCallback2)(Walker*,Select*);/* Second callback for SELECTs */
-  int walkerDepth;                          /* Number of subqueries */
-  u16 eCode;                                /* A small processing code */
-  union {                                   /* Extra data for callback */
-    NameContext *pNC;                         /* Naming context */
-    int n;                                    /* A counter */
-    int iCur;                                 /* A cursor number */
-    SrcList *pSrcList;                        /* FROM clause */
-    struct SrcCount *pSrcCount;               /* Counting column references */
-    struct CCurHint *pCCurHint;               /* Used by codeCursorHint() */
-    int *aiCol;                               /* array of column indexes */
-    struct IdxCover *pIdxCover;               /* Check for index coverage */
-    struct IdxExprTrans *pIdxTrans;           /* Convert idxed expr to column */
-    ExprList *pGroupBy;                       /* GROUP BY clause */
-    Select *pSelect;                          /* HAVING to WHERE clause ctx */
-    struct WindowRewrite *pRewrite;           /* Window rewrite context */
-    struct WhereConst *pConst;                /* WHERE clause constants */
-    struct RenameCtx *pRename;                /* RENAME COLUMN context */
-    struct Table *pTab;                       /* Table of generated column */
-  } u;
-};
-
-/* Forward declarations */
-SQLITE_PRIVATE int tdsqlite3WalkExpr(Walker*, Expr*);
-SQLITE_PRIVATE int tdsqlite3WalkExprList(Walker*, ExprList*);
-SQLITE_PRIVATE int tdsqlite3WalkSelect(Walker*, Select*);
-SQLITE_PRIVATE int tdsqlite3WalkSelectExpr(Walker*, Select*);
-SQLITE_PRIVATE int tdsqlite3WalkSelectFrom(Walker*, Select*);
-SQLITE_PRIVATE int tdsqlite3ExprWalkNoop(Walker*, Expr*);
-SQLITE_PRIVATE int tdsqlite3SelectWalkNoop(Walker*, Select*);
-SQLITE_PRIVATE int tdsqlite3SelectWalkFail(Walker*, Select*);
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE void tdsqlite3SelectWalkAssert2(Walker*, Select*);
-#endif
-
-/*
-** Return code from the parse-tree walking primitives and their
-** callbacks.
-*/
-#define WRC_Continue    0   /* Continue down into children */
-#define WRC_Prune       1   /* Omit children but continue walking siblings */
-#define WRC_Abort       2   /* Abandon the tree walk */
-
-/*
-** An instance of this structure represents a set of one or more CTEs
-** (common table expressions) created by a single WITH clause.
-*/
-struct With {
-  int nCte;                       /* Number of CTEs in the WITH clause */
-  With *pOuter;                   /* Containing WITH clause, or NULL */
-  struct Cte {                    /* For each CTE in the WITH clause.... */
-    char *zName;                    /* Name of this CTE */
-    ExprList *pCols;                /* List of explicit column names, or NULL */
-    Select *pSelect;                /* The definition of this CTE */
-    const char *zCteErr;            /* Error message for circular references */
-  } a[1];
-};
-
-#ifdef SQLITE_DEBUG
-/*
-** An instance of the TreeView object is used for printing the content of
-** data structures on tdsqlite3DebugPrintf() using a tree-like view.
-*/
-struct TreeView {
-  int iLevel;             /* Which level of the tree we are on */
-  u8  bLine[100];         /* Draw vertical in column i if bLine[i] is true */
-};
-#endif /* SQLITE_DEBUG */
-
-/*
-** This object is used in various ways, most (but not all) related to window
-** functions.
-**
-**   (1) A single instance of this structure is attached to the
-**       the Expr.y.pWin field for each window function in an expression tree.
-**       This object holds the information contained in the OVER clause,
-**       plus additional fields used during code generation.
-**
-**   (2) All window functions in a single SELECT form a linked-list
-**       attached to Select.pWin.  The Window.pFunc and Window.pExpr
-**       fields point back to the expression that is the window function.
-**
-**   (3) The terms of the WINDOW clause of a SELECT are instances of this
-**       object on a linked list attached to Select.pWinDefn.
-**
-**   (4) For an aggregate function with a FILTER clause, an instance
-**       of this object is stored in Expr.y.pWin with eFrmType set to
-**       TK_FILTER. In this case the only field used is Window.pFilter.
-**
-** The uses (1) and (2) are really the same Window object that just happens
-** to be accessible in two different ways.  Use case (3) are separate objects.
-*/
-struct Window {
-  char *zName;            /* Name of window (may be NULL) */
-  char *zBase;            /* Name of base window for chaining (may be NULL) */
-  ExprList *pPartition;   /* PARTITION BY clause */
-  ExprList *pOrderBy;     /* ORDER BY clause */
-  u8 eFrmType;            /* TK_RANGE, TK_GROUPS, TK_ROWS, or 0 */
-  u8 eStart;              /* UNBOUNDED, CURRENT, PRECEDING or FOLLOWING */
-  u8 eEnd;                /* UNBOUNDED, CURRENT, PRECEDING or FOLLOWING */
-  u8 bImplicitFrame;      /* True if frame was implicitly specified */
-  u8 eExclude;            /* TK_NO, TK_CURRENT, TK_TIES, TK_GROUP, or 0 */
-  Expr *pStart;           /* Expression for "<expr> PRECEDING" */
-  Expr *pEnd;             /* Expression for "<expr> FOLLOWING" */
-  Window **ppThis;        /* Pointer to this object in Select.pWin list */
-  Window *pNextWin;       /* Next window function belonging to this SELECT */
-  Expr *pFilter;          /* The FILTER expression */
-  FuncDef *pFunc;         /* The function */
-  int iEphCsr;            /* Partition buffer or Peer buffer */
-  int regAccum;           /* Accumulator */
-  int regResult;          /* Interim result */
-  int csrApp;             /* Function cursor (used by min/max) */
-  int regApp;             /* Function register (also used by min/max) */
-  int regPart;            /* Array of registers for PARTITION BY values */
-  Expr *pOwner;           /* Expression object this window is attached to */
-  int nBufferCol;         /* Number of columns in buffer table */
-  int iArgCol;            /* Offset of first argument for this function */
-  int regOne;             /* Register containing constant value 1 */
-  int regStartRowid;
-  int regEndRowid;
-  u8 bExprArgs;           /* Defer evaluation of window function arguments
-                          ** due to the SQLITE_SUBTYPE flag */
-};
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-SQLITE_PRIVATE void tdsqlite3WindowDelete(tdsqlite3*, Window*);
-SQLITE_PRIVATE void tdsqlite3WindowUnlinkFromSelect(Window*);
-SQLITE_PRIVATE void tdsqlite3WindowListDelete(tdsqlite3 *db, Window *p);
-SQLITE_PRIVATE Window *tdsqlite3WindowAlloc(Parse*, int, int, Expr*, int , Expr*, u8);
-SQLITE_PRIVATE void tdsqlite3WindowAttach(Parse*, Expr*, Window*);
-SQLITE_PRIVATE void tdsqlite3WindowLink(Select *pSel, Window *pWin);
-SQLITE_PRIVATE int tdsqlite3WindowCompare(Parse*, Window*, Window*, int);
-SQLITE_PRIVATE void tdsqlite3WindowCodeInit(Parse*, Select*);
-SQLITE_PRIVATE void tdsqlite3WindowCodeStep(Parse*, Select*, WhereInfo*, int, int);
-SQLITE_PRIVATE int tdsqlite3WindowRewrite(Parse*, Select*);
-SQLITE_PRIVATE int tdsqlite3ExpandSubquery(Parse*, struct SrcList_item*);
-SQLITE_PRIVATE void tdsqlite3WindowUpdate(Parse*, Window*, Window*, FuncDef*);
-SQLITE_PRIVATE Window *tdsqlite3WindowDup(tdsqlite3 *db, Expr *pOwner, Window *p);
-SQLITE_PRIVATE Window *tdsqlite3WindowListDup(tdsqlite3 *db, Window *p);
-SQLITE_PRIVATE void tdsqlite3WindowFunctions(void);
-SQLITE_PRIVATE void tdsqlite3WindowChain(Parse*, Window*, Window*);
-SQLITE_PRIVATE Window *tdsqlite3WindowAssemble(Parse*, Window*, ExprList*, ExprList*, Token*);
-#else
-# define tdsqlite3WindowDelete(a,b)
-# define tdsqlite3WindowFunctions()
-# define tdsqlite3WindowAttach(a,b,c)
-#endif
-
-/*
-** Assuming zIn points to the first byte of a UTF-8 character,
-** advance zIn to point to the first byte of the next UTF-8 character.
-*/
-#define SQLITE_SKIP_UTF8(zIn) {                        \
-  if( (*(zIn++))>=0xc0 ){                              \
-    while( (*zIn & 0xc0)==0x80 ){ zIn++; }             \
-  }                                                    \
-}
-
-/*
-** The SQLITE_*_BKPT macros are substitutes for the error codes with
-** the same name but without the _BKPT suffix.  These macros invoke
-** routines that report the line-number on which the error originated
-** using tdsqlite3_log().  The routines also provide a convenient place
-** to set a debugger breakpoint.
-*/
-SQLITE_PRIVATE int tdsqlite3ReportError(int iErr, int lineno, const char *zType);
-SQLITE_PRIVATE int tdsqlite3CorruptError(int);
-SQLITE_PRIVATE int tdsqlite3MisuseError(int);
-SQLITE_PRIVATE int tdsqlite3CantopenError(int);
-#define SQLITE_CORRUPT_BKPT tdsqlite3CorruptError(__LINE__)
-#define SQLITE_MISUSE_BKPT tdsqlite3MisuseError(__LINE__)
-#define SQLITE_CANTOPEN_BKPT tdsqlite3CantopenError(__LINE__)
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE   int tdsqlite3NomemError(int);
-SQLITE_PRIVATE   int tdsqlite3IoerrnomemError(int);
-SQLITE_PRIVATE   int tdsqlite3CorruptPgnoError(int,Pgno);
-# define SQLITE_NOMEM_BKPT tdsqlite3NomemError(__LINE__)
-# define SQLITE_IOERR_NOMEM_BKPT tdsqlite3IoerrnomemError(__LINE__)
-# define SQLITE_CORRUPT_PGNO(P) tdsqlite3CorruptPgnoError(__LINE__,(P))
-#else
-# define SQLITE_NOMEM_BKPT SQLITE_NOMEM
-# define SQLITE_IOERR_NOMEM_BKPT SQLITE_IOERR_NOMEM
-# define SQLITE_CORRUPT_PGNO(P) tdsqlite3CorruptError(__LINE__)
-#endif
-
-/*
-** FTS3 and FTS4 both require virtual table support
-*/
-#if defined(SQLITE_OMIT_VIRTUALTABLE)
-# undef SQLITE_ENABLE_FTS3
-# undef SQLITE_ENABLE_FTS4
-#endif
-
-/*
-** FTS4 is really an extension for FTS3.  It is enabled using the
-** SQLITE_ENABLE_FTS3 macro.  But to avoid confusion we also call
-** the SQLITE_ENABLE_FTS4 macro to serve as an alias for SQLITE_ENABLE_FTS3.
-*/
-#if defined(SQLITE_ENABLE_FTS4) && !defined(SQLITE_ENABLE_FTS3)
-# define SQLITE_ENABLE_FTS3 1
-#endif
-
-/*
-** The ctype.h header is needed for non-ASCII systems.  It is also
-** needed by FTS3 when FTS3 is included in the amalgamation.
-*/
-#if !defined(SQLITE_ASCII) || \
-    (defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_AMALGAMATION))
-# include <ctype.h>
-#endif
-
-/*
-** The following macros mimic the standard library functions toupper(),
-** isspace(), isalnum(), isdigit() and isxdigit(), respectively. The
-** sqlite versions only work for ASCII characters, regardless of locale.
-*/
-#ifdef SQLITE_ASCII
-# define tdsqlite3Toupper(x)  ((x)&~(tdsqlite3CtypeMap[(unsigned char)(x)]&0x20))
-# define tdsqlite3Isspace(x)   (tdsqlite3CtypeMap[(unsigned char)(x)]&0x01)
-# define tdsqlite3Isalnum(x)   (tdsqlite3CtypeMap[(unsigned char)(x)]&0x06)
-# define tdsqlite3Isalpha(x)   (tdsqlite3CtypeMap[(unsigned char)(x)]&0x02)
-# define tdsqlite3Isdigit(x)   (tdsqlite3CtypeMap[(unsigned char)(x)]&0x04)
-# define tdsqlite3Isxdigit(x)  (tdsqlite3CtypeMap[(unsigned char)(x)]&0x08)
-# define tdsqlite3Tolower(x)   (tdsqlite3UpperToLower[(unsigned char)(x)])
-# define tdsqlite3Isquote(x)   (tdsqlite3CtypeMap[(unsigned char)(x)]&0x80)
-#else
-# define tdsqlite3Toupper(x)   toupper((unsigned char)(x))
-# define tdsqlite3Isspace(x)   isspace((unsigned char)(x))
-# define tdsqlite3Isalnum(x)   isalnum((unsigned char)(x))
-# define tdsqlite3Isalpha(x)   isalpha((unsigned char)(x))
-# define tdsqlite3Isdigit(x)   isdigit((unsigned char)(x))
-# define tdsqlite3Isxdigit(x)  isxdigit((unsigned char)(x))
-# define tdsqlite3Tolower(x)   tolower((unsigned char)(x))
-# define tdsqlite3Isquote(x)   ((x)=='"'||(x)=='\''||(x)=='['||(x)=='`')
-#endif
-SQLITE_PRIVATE int tdsqlite3IsIdChar(u8);
-
-/*
-** Internal function prototypes
-*/
-SQLITE_PRIVATE int tdsqlite3StrICmp(const char*,const char*);
-SQLITE_PRIVATE int tdsqlite3Strlen30(const char*);
-#define tdsqlite3Strlen30NN(C) (strlen(C)&0x3fffffff)
-SQLITE_PRIVATE char *tdsqlite3ColumnType(Column*,char*);
-#define tdsqlite3StrNICmp tdsqlite3_strnicmp
-
-SQLITE_PRIVATE int tdsqlite3MallocInit(void);
-SQLITE_PRIVATE void tdsqlite3MallocEnd(void);
-SQLITE_PRIVATE void *tdsqlite3Malloc(u64);
-SQLITE_PRIVATE void *tdsqlite3MallocZero(u64);
-SQLITE_PRIVATE void *tdsqlite3DbMallocZero(tdsqlite3*, u64);
-SQLITE_PRIVATE void *tdsqlite3DbMallocRaw(tdsqlite3*, u64);
-SQLITE_PRIVATE void *tdsqlite3DbMallocRawNN(tdsqlite3*, u64);
-SQLITE_PRIVATE char *tdsqlite3DbStrDup(tdsqlite3*,const char*);
-SQLITE_PRIVATE char *tdsqlite3DbStrNDup(tdsqlite3*,const char*, u64);
-SQLITE_PRIVATE char *tdsqlite3DbSpanDup(tdsqlite3*,const char*,const char*);
-SQLITE_PRIVATE void *tdsqlite3Realloc(void*, u64);
-SQLITE_PRIVATE void *tdsqlite3DbReallocOrFree(tdsqlite3 *, void *, u64);
-SQLITE_PRIVATE void *tdsqlite3DbRealloc(tdsqlite3 *, void *, u64);
-SQLITE_PRIVATE void tdsqlite3DbFree(tdsqlite3*, void*);
-SQLITE_PRIVATE void tdsqlite3DbFreeNN(tdsqlite3*, void*);
-SQLITE_PRIVATE int tdsqlite3MallocSize(void*);
-SQLITE_PRIVATE int tdsqlite3DbMallocSize(tdsqlite3*, void*);
-SQLITE_PRIVATE void *tdsqlite3PageMalloc(int);
-SQLITE_PRIVATE void tdsqlite3PageFree(void*);
-SQLITE_PRIVATE void tdsqlite3MemSetDefault(void);
-#ifndef SQLITE_UNTESTABLE
-SQLITE_PRIVATE void tdsqlite3BenignMallocHooks(void (*)(void), void (*)(void));
-#endif
-SQLITE_PRIVATE int tdsqlite3HeapNearlyFull(void);
-
-/*
-** On systems with ample stack space and that support alloca(), make
-** use of alloca() to obtain space for large automatic objects.  By default,
-** obtain space from malloc().
-**
-** The alloca() routine never returns NULL.  This will cause code paths
-** that deal with tdsqlite3StackAlloc() failures to be unreachable.
-*/
-#ifdef SQLITE_USE_ALLOCA
-# define tdsqlite3StackAllocRaw(D,N)   alloca(N)
-# define tdsqlite3StackAllocZero(D,N)  memset(alloca(N), 0, N)
-# define tdsqlite3StackFree(D,P)
-#else
-# define tdsqlite3StackAllocRaw(D,N)   tdsqlite3DbMallocRaw(D,N)
-# define tdsqlite3StackAllocZero(D,N)  tdsqlite3DbMallocZero(D,N)
-# define tdsqlite3StackFree(D,P)       tdsqlite3DbFree(D,P)
-#endif
-
-/* Do not allow both MEMSYS5 and MEMSYS3 to be defined together.  If they
-** are, disable MEMSYS3
-*/
-#ifdef SQLITE_ENABLE_MEMSYS5
-SQLITE_PRIVATE const tdsqlite3_mem_methods *tdsqlite3MemGetMemsys5(void);
-#undef SQLITE_ENABLE_MEMSYS3
-#endif
-#ifdef SQLITE_ENABLE_MEMSYS3
-SQLITE_PRIVATE const tdsqlite3_mem_methods *tdsqlite3MemGetMemsys3(void);
-#endif
-
-
-#ifndef SQLITE_MUTEX_OMIT
-SQLITE_PRIVATE   tdsqlite3_mutex_methods const *tdsqlite3DefaultMutex(void);
-SQLITE_PRIVATE   tdsqlite3_mutex_methods const *tdsqlite3NoopMutex(void);
-SQLITE_PRIVATE   tdsqlite3_mutex *tdsqlite3MutexAlloc(int);
-SQLITE_PRIVATE   int tdsqlite3MutexInit(void);
-SQLITE_PRIVATE   int tdsqlite3MutexEnd(void);
-#endif
-#if !defined(SQLITE_MUTEX_OMIT) && !defined(SQLITE_MUTEX_NOOP)
-SQLITE_PRIVATE   void tdsqlite3MemoryBarrier(void);
-#else
-# define tdsqlite3MemoryBarrier()
-#endif
-
-SQLITE_PRIVATE tdsqlite3_int64 tdsqlite3StatusValue(int);
-SQLITE_PRIVATE void tdsqlite3StatusUp(int, int);
-SQLITE_PRIVATE void tdsqlite3StatusDown(int, int);
-SQLITE_PRIVATE void tdsqlite3StatusHighwater(int, int);
-SQLITE_PRIVATE int tdsqlite3LookasideUsed(tdsqlite3*,int*);
-
-/* Access to mutexes used by tdsqlite3_status() */
-SQLITE_PRIVATE tdsqlite3_mutex *tdsqlite3Pcache1Mutex(void);
-SQLITE_PRIVATE tdsqlite3_mutex *tdsqlite3MallocMutex(void);
-
-#if defined(SQLITE_ENABLE_MULTITHREADED_CHECKS) && !defined(SQLITE_MUTEX_OMIT)
-SQLITE_PRIVATE void tdsqlite3MutexWarnOnContention(tdsqlite3_mutex*);
-#else
-# define tdsqlite3MutexWarnOnContention(x)
-#endif
-
-#ifndef SQLITE_OMIT_FLOATING_POINT
-# define EXP754 (((u64)0x7ff)<<52)
-# define MAN754 ((((u64)1)<<52)-1)
-# define IsNaN(X) (((X)&EXP754)==EXP754 && ((X)&MAN754)!=0)
-SQLITE_PRIVATE   int tdsqlite3IsNaN(double);
-#else
-# define IsNaN(X)         0
-# define tdsqlite3IsNaN(X)  0
-#endif
-
-/*
-** An instance of the following structure holds information about SQL
-** functions arguments that are the parameters to the printf() function.
-*/
-struct PrintfArguments {
-  int nArg;                /* Total number of arguments */
-  int nUsed;               /* Number of arguments used so far */
-  tdsqlite3_value **apArg;   /* The argument values */
-};
-
-SQLITE_PRIVATE char *tdsqlite3MPrintf(tdsqlite3*,const char*, ...);
-SQLITE_PRIVATE char *tdsqlite3VMPrintf(tdsqlite3*,const char*, va_list);
-#if defined(SQLITE_DEBUG) || defined(SQLITE_HAVE_OS_TRACE)
-SQLITE_PRIVATE   void tdsqlite3DebugPrintf(const char*, ...);
-#endif
-#if defined(SQLITE_TEST)
-SQLITE_PRIVATE   void *tdsqlite3TestTextToPtr(const char*);
-#endif
-
-#if defined(SQLITE_DEBUG)
-SQLITE_PRIVATE   void tdsqlite3TreeViewExpr(TreeView*, const Expr*, u8);
-SQLITE_PRIVATE   void tdsqlite3TreeViewBareExprList(TreeView*, const ExprList*, const char*);
-SQLITE_PRIVATE   void tdsqlite3TreeViewExprList(TreeView*, const ExprList*, u8, const char*);
-SQLITE_PRIVATE   void tdsqlite3TreeViewSrcList(TreeView*, const SrcList*);
-SQLITE_PRIVATE   void tdsqlite3TreeViewSelect(TreeView*, const Select*, u8);
-SQLITE_PRIVATE   void tdsqlite3TreeViewWith(TreeView*, const With*, u8);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-SQLITE_PRIVATE   void tdsqlite3TreeViewWindow(TreeView*, const Window*, u8);
-SQLITE_PRIVATE   void tdsqlite3TreeViewWinFunc(TreeView*, const Window*, u8);
-#endif
-#endif
-
-
-SQLITE_PRIVATE void tdsqlite3SetString(char **, tdsqlite3*, const char*);
-SQLITE_PRIVATE void tdsqlite3ErrorMsg(Parse*, const char*, ...);
-SQLITE_PRIVATE int tdsqlite3ErrorToParser(tdsqlite3*,int);
-SQLITE_PRIVATE void tdsqlite3Dequote(char*);
-SQLITE_PRIVATE void tdsqlite3DequoteExpr(Expr*);
-SQLITE_PRIVATE void tdsqlite3TokenInit(Token*,char*);
-SQLITE_PRIVATE int tdsqlite3KeywordCode(const unsigned char*, int);
-SQLITE_PRIVATE int tdsqlite3RunParser(Parse*, const char*, char **);
-SQLITE_PRIVATE void tdsqlite3FinishCoding(Parse*);
-SQLITE_PRIVATE int tdsqlite3GetTempReg(Parse*);
-SQLITE_PRIVATE void tdsqlite3ReleaseTempReg(Parse*,int);
-SQLITE_PRIVATE int tdsqlite3GetTempRange(Parse*,int);
-SQLITE_PRIVATE void tdsqlite3ReleaseTempRange(Parse*,int,int);
-SQLITE_PRIVATE void tdsqlite3ClearTempRegCache(Parse*);
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3NoTempsInRange(Parse*,int,int);
-#endif
-SQLITE_PRIVATE Expr *tdsqlite3ExprAlloc(tdsqlite3*,int,const Token*,int);
-SQLITE_PRIVATE Expr *tdsqlite3Expr(tdsqlite3*,int,const char*);
-SQLITE_PRIVATE void tdsqlite3ExprAttachSubtrees(tdsqlite3*,Expr*,Expr*,Expr*);
-SQLITE_PRIVATE Expr *tdsqlite3PExpr(Parse*, int, Expr*, Expr*);
-SQLITE_PRIVATE void tdsqlite3PExprAddSelect(Parse*, Expr*, Select*);
-SQLITE_PRIVATE Expr *tdsqlite3ExprAnd(Parse*,Expr*, Expr*);
-SQLITE_PRIVATE Expr *tdsqlite3ExprSimplifiedAndOr(Expr*);
-SQLITE_PRIVATE Expr *tdsqlite3ExprFunction(Parse*,ExprList*, Token*, int);
-SQLITE_PRIVATE void tdsqlite3ExprFunctionUsable(Parse*,Expr*,FuncDef*);
-SQLITE_PRIVATE void tdsqlite3ExprAssignVarNumber(Parse*, Expr*, u32);
-SQLITE_PRIVATE void tdsqlite3ExprDelete(tdsqlite3*, Expr*);
-SQLITE_PRIVATE void tdsqlite3ExprUnmapAndDelete(Parse*, Expr*);
-SQLITE_PRIVATE ExprList *tdsqlite3ExprListAppend(Parse*,ExprList*,Expr*);
-SQLITE_PRIVATE ExprList *tdsqlite3ExprListAppendVector(Parse*,ExprList*,IdList*,Expr*);
-SQLITE_PRIVATE void tdsqlite3ExprListSetSortOrder(ExprList*,int,int);
-SQLITE_PRIVATE void tdsqlite3ExprListSetName(Parse*,ExprList*,Token*,int);
-SQLITE_PRIVATE void tdsqlite3ExprListSetSpan(Parse*,ExprList*,const char*,const char*);
-SQLITE_PRIVATE void tdsqlite3ExprListDelete(tdsqlite3*, ExprList*);
-SQLITE_PRIVATE u32 tdsqlite3ExprListFlags(const ExprList*);
-SQLITE_PRIVATE int tdsqlite3IndexHasDuplicateRootPage(Index*);
-SQLITE_PRIVATE int tdsqlite3Init(tdsqlite3*, char**);
-SQLITE_PRIVATE int tdsqlite3InitCallback(void*, int, char**, char**);
-SQLITE_PRIVATE int tdsqlite3InitOne(tdsqlite3*, int, char**, u32);
-SQLITE_PRIVATE void tdsqlite3Pragma(Parse*,Token*,Token*,Token*,int);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-SQLITE_PRIVATE Module *tdsqlite3PragmaVtabRegister(tdsqlite3*,const char *zName);
-#endif
-SQLITE_PRIVATE void tdsqlite3ResetAllSchemasOfConnection(tdsqlite3*);
-SQLITE_PRIVATE void tdsqlite3ResetOneSchema(tdsqlite3*,int);
-SQLITE_PRIVATE void tdsqlite3CollapseDatabaseArray(tdsqlite3*);
-SQLITE_PRIVATE void tdsqlite3CommitInternalChanges(tdsqlite3*);
-SQLITE_PRIVATE void tdsqlite3DeleteColumnNames(tdsqlite3*,Table*);
-SQLITE_PRIVATE int tdsqlite3ColumnsFromExprList(Parse*,ExprList*,i16*,Column**);
-SQLITE_PRIVATE void tdsqlite3SelectAddColumnTypeAndCollation(Parse*,Table*,Select*,char);
-SQLITE_PRIVATE Table *tdsqlite3ResultSetOfSelect(Parse*,Select*,char);
-SQLITE_PRIVATE void tdsqlite3OpenMasterTable(Parse *, int);
-SQLITE_PRIVATE Index *tdsqlite3PrimaryKeyIndex(Table*);
-SQLITE_PRIVATE i16 tdsqlite3TableColumnToIndex(Index*, i16);
-#ifdef SQLITE_OMIT_GENERATED_COLUMNS
-# define tdsqlite3TableColumnToStorage(T,X) (X)  /* No-op pass-through */
-# define tdsqlite3StorageColumnToTable(T,X) (X)  /* No-op pass-through */
-#else
-SQLITE_PRIVATE   i16 tdsqlite3TableColumnToStorage(Table*, i16);
-SQLITE_PRIVATE   i16 tdsqlite3StorageColumnToTable(Table*, i16);
-#endif
-SQLITE_PRIVATE void tdsqlite3StartTable(Parse*,Token*,Token*,int,int,int,int);
-#if SQLITE_ENABLE_HIDDEN_COLUMNS
-SQLITE_PRIVATE   void tdsqlite3ColumnPropertiesFromName(Table*, Column*);
-#else
-# define tdsqlite3ColumnPropertiesFromName(T,C) /* no-op */
-#endif
-SQLITE_PRIVATE void tdsqlite3AddColumn(Parse*,Token*,Token*);
-SQLITE_PRIVATE void tdsqlite3AddNotNull(Parse*, int);
-SQLITE_PRIVATE void tdsqlite3AddPrimaryKey(Parse*, ExprList*, int, int, int);
-SQLITE_PRIVATE void tdsqlite3AddCheckConstraint(Parse*, Expr*);
-SQLITE_PRIVATE void tdsqlite3AddDefaultValue(Parse*,Expr*,const char*,const char*);
-SQLITE_PRIVATE void tdsqlite3AddCollateType(Parse*, Token*);
-SQLITE_PRIVATE void tdsqlite3AddGenerated(Parse*,Expr*,Token*);
-SQLITE_PRIVATE void tdsqlite3EndTable(Parse*,Token*,Token*,u8,Select*);
-SQLITE_PRIVATE int tdsqlite3ParseUri(const char*,const char*,unsigned int*,
-                    tdsqlite3_vfs**,char**,char **);
-#ifdef SQLITE_HAS_CODEC
-SQLITE_PRIVATE   int tdsqlite3CodecQueryParameters(tdsqlite3*,const char*,const char*);
-#else
-# define tdsqlite3CodecQueryParameters(A,B,C) 0
-#endif
-SQLITE_PRIVATE Btree *tdsqlite3DbNameToBtree(tdsqlite3*,const char*);
-
-#ifdef SQLITE_UNTESTABLE
-# define tdsqlite3FaultSim(X) SQLITE_OK
-#else
-SQLITE_PRIVATE   int tdsqlite3FaultSim(int);
-#endif
-
-SQLITE_PRIVATE Bitvec *tdsqlite3BitvecCreate(u32);
-SQLITE_PRIVATE int tdsqlite3BitvecTest(Bitvec*, u32);
-SQLITE_PRIVATE int tdsqlite3BitvecTestNotNull(Bitvec*, u32);
-SQLITE_PRIVATE int tdsqlite3BitvecSet(Bitvec*, u32);
-SQLITE_PRIVATE void tdsqlite3BitvecClear(Bitvec*, u32, void*);
-SQLITE_PRIVATE void tdsqlite3BitvecDestroy(Bitvec*);
-SQLITE_PRIVATE u32 tdsqlite3BitvecSize(Bitvec*);
-#ifndef SQLITE_UNTESTABLE
-SQLITE_PRIVATE int tdsqlite3BitvecBuiltinTest(int,int*);
-#endif
-
-SQLITE_PRIVATE RowSet *tdsqlite3RowSetInit(tdsqlite3*);
-SQLITE_PRIVATE void tdsqlite3RowSetDelete(void*);
-SQLITE_PRIVATE void tdsqlite3RowSetClear(void*);
-SQLITE_PRIVATE void tdsqlite3RowSetInsert(RowSet*, i64);
-SQLITE_PRIVATE int tdsqlite3RowSetTest(RowSet*, int iBatch, i64);
-SQLITE_PRIVATE int tdsqlite3RowSetNext(RowSet*, i64*);
-
-SQLITE_PRIVATE void tdsqlite3CreateView(Parse*,Token*,Token*,Token*,ExprList*,Select*,int,int);
-
-#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_VIRTUALTABLE)
-SQLITE_PRIVATE   int tdsqlite3ViewGetColumnNames(Parse*,Table*);
-#else
-# define tdsqlite3ViewGetColumnNames(A,B) 0
-#endif
-
-#if SQLITE_MAX_ATTACHED>30
-SQLITE_PRIVATE   int tdsqlite3DbMaskAllZero(yDbMask);
-#endif
-SQLITE_PRIVATE void tdsqlite3DropTable(Parse*, SrcList*, int, int);
-SQLITE_PRIVATE void tdsqlite3CodeDropTable(Parse*, Table*, int, int);
-SQLITE_PRIVATE void tdsqlite3DeleteTable(tdsqlite3*, Table*);
-SQLITE_PRIVATE void tdsqlite3FreeIndex(tdsqlite3*, Index*);
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-SQLITE_PRIVATE   void tdsqlite3AutoincrementBegin(Parse *pParse);
-SQLITE_PRIVATE   void tdsqlite3AutoincrementEnd(Parse *pParse);
-#else
-# define tdsqlite3AutoincrementBegin(X)
-# define tdsqlite3AutoincrementEnd(X)
-#endif
-SQLITE_PRIVATE void tdsqlite3Insert(Parse*, SrcList*, Select*, IdList*, int, Upsert*);
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-SQLITE_PRIVATE   void tdsqlite3ComputeGeneratedColumns(Parse*, int, Table*);
-#endif
-SQLITE_PRIVATE void *tdsqlite3ArrayAllocate(tdsqlite3*,void*,int,int*,int*);
-SQLITE_PRIVATE IdList *tdsqlite3IdListAppend(Parse*, IdList*, Token*);
-SQLITE_PRIVATE int tdsqlite3IdListIndex(IdList*,const char*);
-SQLITE_PRIVATE SrcList *tdsqlite3SrcListEnlarge(Parse*, SrcList*, int, int);
-SQLITE_PRIVATE SrcList *tdsqlite3SrcListAppend(Parse*, SrcList*, Token*, Token*);
-SQLITE_PRIVATE SrcList *tdsqlite3SrcListAppendFromTerm(Parse*, SrcList*, Token*, Token*,
-                                      Token*, Select*, Expr*, IdList*);
-SQLITE_PRIVATE void tdsqlite3SrcListIndexedBy(Parse *, SrcList *, Token *);
-SQLITE_PRIVATE void tdsqlite3SrcListFuncArgs(Parse*, SrcList*, ExprList*);
-SQLITE_PRIVATE int tdsqlite3IndexedByLookup(Parse *, struct SrcList_item *);
-SQLITE_PRIVATE void tdsqlite3SrcListShiftJoinType(SrcList*);
-SQLITE_PRIVATE void tdsqlite3SrcListAssignCursors(Parse*, SrcList*);
-SQLITE_PRIVATE void tdsqlite3IdListDelete(tdsqlite3*, IdList*);
-SQLITE_PRIVATE void tdsqlite3SrcListDelete(tdsqlite3*, SrcList*);
-SQLITE_PRIVATE Index *tdsqlite3AllocateIndexObject(tdsqlite3*,i16,int,char**);
-SQLITE_PRIVATE void tdsqlite3CreateIndex(Parse*,Token*,Token*,SrcList*,ExprList*,int,Token*,
-                          Expr*, int, int, u8);
-SQLITE_PRIVATE void tdsqlite3DropIndex(Parse*, SrcList*, int);
-SQLITE_PRIVATE int tdsqlite3Select(Parse*, Select*, SelectDest*);
-SQLITE_PRIVATE Select *tdsqlite3SelectNew(Parse*,ExprList*,SrcList*,Expr*,ExprList*,
-                         Expr*,ExprList*,u32,Expr*);
-SQLITE_PRIVATE void tdsqlite3SelectDelete(tdsqlite3*, Select*);
-SQLITE_PRIVATE void tdsqlite3SelectReset(Parse*, Select*);
-SQLITE_PRIVATE Table *tdsqlite3SrcListLookup(Parse*, SrcList*);
-SQLITE_PRIVATE int tdsqlite3IsReadOnly(Parse*, Table*, int);
-SQLITE_PRIVATE void tdsqlite3OpenTable(Parse*, int iCur, int iDb, Table*, int);
-#if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY)
-SQLITE_PRIVATE Expr *tdsqlite3LimitWhere(Parse*,SrcList*,Expr*,ExprList*,Expr*,char*);
-#endif
-SQLITE_PRIVATE void tdsqlite3DeleteFrom(Parse*, SrcList*, Expr*, ExprList*, Expr*);
-SQLITE_PRIVATE void tdsqlite3Update(Parse*, SrcList*, ExprList*,Expr*,int,ExprList*,Expr*,
-                   Upsert*);
-SQLITE_PRIVATE WhereInfo *tdsqlite3WhereBegin(Parse*,SrcList*,Expr*,ExprList*,ExprList*,u16,int);
-SQLITE_PRIVATE void tdsqlite3WhereEnd(WhereInfo*);
-SQLITE_PRIVATE LogEst tdsqlite3WhereOutputRowCount(WhereInfo*);
-SQLITE_PRIVATE int tdsqlite3WhereIsDistinct(WhereInfo*);
-SQLITE_PRIVATE int tdsqlite3WhereIsOrdered(WhereInfo*);
-SQLITE_PRIVATE int tdsqlite3WhereOrderByLimitOptLabel(WhereInfo*);
-SQLITE_PRIVATE int tdsqlite3WhereIsSorted(WhereInfo*);
-SQLITE_PRIVATE int tdsqlite3WhereContinueLabel(WhereInfo*);
-SQLITE_PRIVATE int tdsqlite3WhereBreakLabel(WhereInfo*);
-SQLITE_PRIVATE int tdsqlite3WhereOkOnePass(WhereInfo*, int*);
-#define ONEPASS_OFF      0        /* Use of ONEPASS not allowed */
-#define ONEPASS_SINGLE   1        /* ONEPASS valid for a single row update */
-#define ONEPASS_MULTI    2        /* ONEPASS is valid for multiple rows */
-SQLITE_PRIVATE int tdsqlite3WhereUsesDeferredSeek(WhereInfo*);
-SQLITE_PRIVATE void tdsqlite3ExprCodeLoadIndexColumn(Parse*, Index*, int, int, int);
-SQLITE_PRIVATE int tdsqlite3ExprCodeGetColumn(Parse*, Table*, int, int, int, u8);
-SQLITE_PRIVATE void tdsqlite3ExprCodeGetColumnOfTable(Vdbe*, Table*, int, int, int);
-SQLITE_PRIVATE void tdsqlite3ExprCodeMove(Parse*, int, int, int);
-SQLITE_PRIVATE void tdsqlite3ExprCode(Parse*, Expr*, int);
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-SQLITE_PRIVATE void tdsqlite3ExprCodeGeneratedColumn(Parse*, Column*, int);
-#endif
-SQLITE_PRIVATE void tdsqlite3ExprCodeCopy(Parse*, Expr*, int);
-SQLITE_PRIVATE void tdsqlite3ExprCodeFactorable(Parse*, Expr*, int);
-SQLITE_PRIVATE int tdsqlite3ExprCodeAtInit(Parse*, Expr*, int);
-SQLITE_PRIVATE int tdsqlite3ExprCodeTemp(Parse*, Expr*, int*);
-SQLITE_PRIVATE int tdsqlite3ExprCodeTarget(Parse*, Expr*, int);
-SQLITE_PRIVATE int tdsqlite3ExprCodeExprList(Parse*, ExprList*, int, int, u8);
-#define SQLITE_ECEL_DUP      0x01  /* Deep, not shallow copies */
-#define SQLITE_ECEL_FACTOR   0x02  /* Factor out constant terms */
-#define SQLITE_ECEL_REF      0x04  /* Use ExprList.u.x.iOrderByCol */
-#define SQLITE_ECEL_OMITREF  0x08  /* Omit if ExprList.u.x.iOrderByCol */
-SQLITE_PRIVATE void tdsqlite3ExprIfTrue(Parse*, Expr*, int, int);
-SQLITE_PRIVATE void tdsqlite3ExprIfFalse(Parse*, Expr*, int, int);
-SQLITE_PRIVATE void tdsqlite3ExprIfFalseDup(Parse*, Expr*, int, int);
-SQLITE_PRIVATE Table *tdsqlite3FindTable(tdsqlite3*,const char*, const char*);
-#define LOCATE_VIEW    0x01
-#define LOCATE_NOERR   0x02
-SQLITE_PRIVATE Table *tdsqlite3LocateTable(Parse*,u32 flags,const char*, const char*);
-SQLITE_PRIVATE Table *tdsqlite3LocateTableItem(Parse*,u32 flags,struct SrcList_item *);
-SQLITE_PRIVATE Index *tdsqlite3FindIndex(tdsqlite3*,const char*, const char*);
-SQLITE_PRIVATE void tdsqlite3UnlinkAndDeleteTable(tdsqlite3*,int,const char*);
-SQLITE_PRIVATE void tdsqlite3UnlinkAndDeleteIndex(tdsqlite3*,int,const char*);
-SQLITE_PRIVATE void tdsqlite3Vacuum(Parse*,Token*,Expr*);
-SQLITE_PRIVATE int tdsqlite3RunVacuum(char**, tdsqlite3*, int, tdsqlite3_value*);
-SQLITE_PRIVATE char *tdsqlite3NameFromToken(tdsqlite3*, Token*);
-SQLITE_PRIVATE int tdsqlite3ExprCompare(Parse*,Expr*, Expr*, int);
-SQLITE_PRIVATE int tdsqlite3ExprCompareSkip(Expr*, Expr*, int);
-SQLITE_PRIVATE int tdsqlite3ExprListCompare(ExprList*, ExprList*, int);
-SQLITE_PRIVATE int tdsqlite3ExprImpliesExpr(Parse*,Expr*, Expr*, int);
-SQLITE_PRIVATE int tdsqlite3ExprImpliesNonNullRow(Expr*,int);
-SQLITE_PRIVATE void tdsqlite3ExprAnalyzeAggregates(NameContext*, Expr*);
-SQLITE_PRIVATE void tdsqlite3ExprAnalyzeAggList(NameContext*,ExprList*);
-SQLITE_PRIVATE int tdsqlite3ExprCoveredByIndex(Expr*, int iCur, Index *pIdx);
-SQLITE_PRIVATE int tdsqlite3FunctionUsesThisSrc(Expr*, SrcList*);
-SQLITE_PRIVATE Vdbe *tdsqlite3GetVdbe(Parse*);
-#ifndef SQLITE_UNTESTABLE
-SQLITE_PRIVATE void tdsqlite3PrngSaveState(void);
-SQLITE_PRIVATE void tdsqlite3PrngRestoreState(void);
-#endif
-SQLITE_PRIVATE void tdsqlite3RollbackAll(tdsqlite3*,int);
-SQLITE_PRIVATE void tdsqlite3CodeVerifySchema(Parse*, int);
-SQLITE_PRIVATE void tdsqlite3CodeVerifyNamedSchema(Parse*, const char *zDb);
-SQLITE_PRIVATE void tdsqlite3BeginTransaction(Parse*, int);
-SQLITE_PRIVATE void tdsqlite3EndTransaction(Parse*,int);
-SQLITE_PRIVATE void tdsqlite3Savepoint(Parse*, int, Token*);
-SQLITE_PRIVATE void tdsqlite3CloseSavepoints(tdsqlite3 *);
-SQLITE_PRIVATE void tdsqlite3LeaveMutexAndCloseZombie(tdsqlite3*);
-SQLITE_PRIVATE u32 tdsqlite3IsTrueOrFalse(const char*);
-SQLITE_PRIVATE int tdsqlite3ExprIdToTrueFalse(Expr*);
-SQLITE_PRIVATE int tdsqlite3ExprTruthValue(const Expr*);
-SQLITE_PRIVATE int tdsqlite3ExprIsConstant(Expr*);
-SQLITE_PRIVATE int tdsqlite3ExprIsConstantNotJoin(Expr*);
-SQLITE_PRIVATE int tdsqlite3ExprIsConstantOrFunction(Expr*, u8);
-SQLITE_PRIVATE int tdsqlite3ExprIsConstantOrGroupBy(Parse*, Expr*, ExprList*);
-SQLITE_PRIVATE int tdsqlite3ExprIsTableConstant(Expr*,int);
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-SQLITE_PRIVATE int tdsqlite3ExprContainsSubquery(Expr*);
-#endif
-SQLITE_PRIVATE int tdsqlite3ExprIsInteger(Expr*, int*);
-SQLITE_PRIVATE int tdsqlite3ExprCanBeNull(const Expr*);
-SQLITE_PRIVATE int tdsqlite3ExprNeedsNoAffinityChange(const Expr*, char);
-SQLITE_PRIVATE int tdsqlite3IsRowid(const char*);
-SQLITE_PRIVATE void tdsqlite3GenerateRowDelete(
-    Parse*,Table*,Trigger*,int,int,int,i16,u8,u8,u8,int);
-SQLITE_PRIVATE void tdsqlite3GenerateRowIndexDelete(Parse*, Table*, int, int, int*, int);
-SQLITE_PRIVATE int tdsqlite3GenerateIndexKey(Parse*, Index*, int, int, int, int*,Index*,int);
-SQLITE_PRIVATE void tdsqlite3ResolvePartIdxLabel(Parse*,int);
-SQLITE_PRIVATE int tdsqlite3ExprReferencesUpdatedColumn(Expr*,int*,int);
-SQLITE_PRIVATE void tdsqlite3GenerateConstraintChecks(Parse*,Table*,int*,int,int,int,int,
-                                     u8,u8,int,int*,int*,Upsert*);
-#ifdef SQLITE_ENABLE_NULL_TRIM
-SQLITE_PRIVATE   void tdsqlite3SetMakeRecordP5(Vdbe*,Table*);
-#else
-# define tdsqlite3SetMakeRecordP5(A,B)
-#endif
-SQLITE_PRIVATE void tdsqlite3CompleteInsertion(Parse*,Table*,int,int,int,int*,int,int,int);
-SQLITE_PRIVATE int tdsqlite3OpenTableAndIndices(Parse*, Table*, int, u8, int, u8*, int*, int*);
-SQLITE_PRIVATE void tdsqlite3BeginWriteOperation(Parse*, int, int);
-SQLITE_PRIVATE void tdsqlite3MultiWrite(Parse*);
-SQLITE_PRIVATE void tdsqlite3MayAbort(Parse*);
-SQLITE_PRIVATE void tdsqlite3HaltConstraint(Parse*, int, int, char*, i8, u8);
-SQLITE_PRIVATE void tdsqlite3UniqueConstraint(Parse*, int, Index*);
-SQLITE_PRIVATE void tdsqlite3RowidConstraint(Parse*, int, Table*);
-SQLITE_PRIVATE Expr *tdsqlite3ExprDup(tdsqlite3*,Expr*,int);
-SQLITE_PRIVATE ExprList *tdsqlite3ExprListDup(tdsqlite3*,ExprList*,int);
-SQLITE_PRIVATE SrcList *tdsqlite3SrcListDup(tdsqlite3*,SrcList*,int);
-SQLITE_PRIVATE IdList *tdsqlite3IdListDup(tdsqlite3*,IdList*);
-SQLITE_PRIVATE Select *tdsqlite3SelectDup(tdsqlite3*,Select*,int);
-SQLITE_PRIVATE FuncDef *tdsqlite3FunctionSearch(int,const char*);
-SQLITE_PRIVATE void tdsqlite3InsertBuiltinFuncs(FuncDef*,int);
-SQLITE_PRIVATE FuncDef *tdsqlite3FindFunction(tdsqlite3*,const char*,int,u8,u8);
-SQLITE_PRIVATE void tdsqlite3RegisterBuiltinFunctions(void);
-SQLITE_PRIVATE void tdsqlite3RegisterDateTimeFunctions(void);
-SQLITE_PRIVATE void tdsqlite3RegisterPerConnectionBuiltinFunctions(tdsqlite3*);
-SQLITE_PRIVATE int tdsqlite3SafetyCheckOk(tdsqlite3*);
-SQLITE_PRIVATE int tdsqlite3SafetyCheckSickOrOk(tdsqlite3*);
-SQLITE_PRIVATE void tdsqlite3ChangeCookie(Parse*, int);
-
-#if !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER)
-SQLITE_PRIVATE void tdsqlite3MaterializeView(Parse*, Table*, Expr*, ExprList*,Expr*,int);
-#endif
-
-#ifndef SQLITE_OMIT_TRIGGER
-SQLITE_PRIVATE   void tdsqlite3BeginTrigger(Parse*, Token*,Token*,int,int,IdList*,SrcList*,
-                           Expr*,int, int);
-SQLITE_PRIVATE   void tdsqlite3FinishTrigger(Parse*, TriggerStep*, Token*);
-SQLITE_PRIVATE   void tdsqlite3DropTrigger(Parse*, SrcList*, int);
-SQLITE_PRIVATE   void tdsqlite3DropTriggerPtr(Parse*, Trigger*);
-SQLITE_PRIVATE   Trigger *tdsqlite3TriggersExist(Parse *, Table*, int, ExprList*, int *pMask);
-SQLITE_PRIVATE   Trigger *tdsqlite3TriggerList(Parse *, Table *);
-SQLITE_PRIVATE   void tdsqlite3CodeRowTrigger(Parse*, Trigger *, int, ExprList*, int, Table *,
-                            int, int, int);
-SQLITE_PRIVATE   void tdsqlite3CodeRowTriggerDirect(Parse *, Trigger *, Table *, int, int, int);
-  void sqliteViewTriggers(Parse*, Table*, Expr*, int, ExprList*);
-SQLITE_PRIVATE   void tdsqlite3DeleteTriggerStep(tdsqlite3*, TriggerStep*);
-SQLITE_PRIVATE   TriggerStep *tdsqlite3TriggerSelectStep(tdsqlite3*,Select*,
-                                        const char*,const char*);
-SQLITE_PRIVATE   TriggerStep *tdsqlite3TriggerInsertStep(Parse*,Token*, IdList*,
-                                        Select*,u8,Upsert*,
-                                        const char*,const char*);
-SQLITE_PRIVATE   TriggerStep *tdsqlite3TriggerUpdateStep(Parse*,Token*,ExprList*, Expr*, u8,
-                                        const char*,const char*);
-SQLITE_PRIVATE   TriggerStep *tdsqlite3TriggerDeleteStep(Parse*,Token*, Expr*,
-                                        const char*,const char*);
-SQLITE_PRIVATE   void tdsqlite3DeleteTrigger(tdsqlite3*, Trigger*);
-SQLITE_PRIVATE   void tdsqlite3UnlinkAndDeleteTrigger(tdsqlite3*,int,const char*);
-SQLITE_PRIVATE   u32 tdsqlite3TriggerColmask(Parse*,Trigger*,ExprList*,int,int,Table*,int);
-# define tdsqlite3ParseToplevel(p) ((p)->pToplevel ? (p)->pToplevel : (p))
-# define tdsqlite3IsToplevel(p) ((p)->pToplevel==0)
-#else
-# define tdsqlite3TriggersExist(B,C,D,E,F) 0
-# define tdsqlite3DeleteTrigger(A,B)
-# define tdsqlite3DropTriggerPtr(A,B)
-# define tdsqlite3UnlinkAndDeleteTrigger(A,B,C)
-# define tdsqlite3CodeRowTrigger(A,B,C,D,E,F,G,H,I)
-# define tdsqlite3CodeRowTriggerDirect(A,B,C,D,E,F)
-# define tdsqlite3TriggerList(X, Y) 0
-# define tdsqlite3ParseToplevel(p) p
-# define tdsqlite3IsToplevel(p) 1
-# define tdsqlite3TriggerColmask(A,B,C,D,E,F,G) 0
-#endif
-
-SQLITE_PRIVATE int tdsqlite3JoinType(Parse*, Token*, Token*, Token*);
-SQLITE_PRIVATE void tdsqlite3SetJoinExpr(Expr*,int);
-SQLITE_PRIVATE void tdsqlite3CreateForeignKey(Parse*, ExprList*, Token*, ExprList*, int);
-SQLITE_PRIVATE void tdsqlite3DeferForeignKey(Parse*, int);
-#ifndef SQLITE_OMIT_AUTHORIZATION
-SQLITE_PRIVATE   void tdsqlite3AuthRead(Parse*,Expr*,Schema*,SrcList*);
-SQLITE_PRIVATE   int tdsqlite3AuthCheck(Parse*,int, const char*, const char*, const char*);
-SQLITE_PRIVATE   void tdsqlite3AuthContextPush(Parse*, AuthContext*, const char*);
-SQLITE_PRIVATE   void tdsqlite3AuthContextPop(AuthContext*);
-SQLITE_PRIVATE   int tdsqlite3AuthReadCol(Parse*, const char *, const char *, int);
-#else
-# define tdsqlite3AuthRead(a,b,c,d)
-# define tdsqlite3AuthCheck(a,b,c,d,e)    SQLITE_OK
-# define tdsqlite3AuthContextPush(a,b,c)
-# define tdsqlite3AuthContextPop(a)  ((void)(a))
-#endif
-SQLITE_PRIVATE void tdsqlite3Attach(Parse*, Expr*, Expr*, Expr*);
-SQLITE_PRIVATE void tdsqlite3Detach(Parse*, Expr*);
-SQLITE_PRIVATE void tdsqlite3FixInit(DbFixer*, Parse*, int, const char*, const Token*);
-SQLITE_PRIVATE int tdsqlite3FixSrcList(DbFixer*, SrcList*);
-SQLITE_PRIVATE int tdsqlite3FixSelect(DbFixer*, Select*);
-SQLITE_PRIVATE int tdsqlite3FixExpr(DbFixer*, Expr*);
-SQLITE_PRIVATE int tdsqlite3FixExprList(DbFixer*, ExprList*);
-SQLITE_PRIVATE int tdsqlite3FixTriggerStep(DbFixer*, TriggerStep*);
-SQLITE_PRIVATE int tdsqlite3RealSameAsInt(double,tdsqlite3_int64);
-SQLITE_PRIVATE int tdsqlite3AtoF(const char *z, double*, int, u8);
-SQLITE_PRIVATE int tdsqlite3GetInt32(const char *, int*);
-SQLITE_PRIVATE int tdsqlite3Atoi(const char*);
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_PRIVATE int tdsqlite3Utf16ByteLen(const void *pData, int nChar);
-#endif
-SQLITE_PRIVATE int tdsqlite3Utf8CharLen(const char *pData, int nByte);
-SQLITE_PRIVATE u32 tdsqlite3Utf8Read(const u8**);
-SQLITE_PRIVATE LogEst tdsqlite3LogEst(u64);
-SQLITE_PRIVATE LogEst tdsqlite3LogEstAdd(LogEst,LogEst);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-SQLITE_PRIVATE LogEst tdsqlite3LogEstFromDouble(double);
-#endif
-#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || \
-    defined(SQLITE_ENABLE_STAT4) || \
-    defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
-SQLITE_PRIVATE u64 tdsqlite3LogEstToInt(LogEst);
-#endif
-SQLITE_PRIVATE VList *tdsqlite3VListAdd(tdsqlite3*,VList*,const char*,int,int);
-SQLITE_PRIVATE const char *tdsqlite3VListNumToName(VList*,int);
-SQLITE_PRIVATE int tdsqlite3VListNameToNum(VList*,const char*,int);
-
-/*
-** Routines to read and write variable-length integers.  These used to
-** be defined locally, but now we use the varint routines in the util.c
-** file.
-*/
-SQLITE_PRIVATE int tdsqlite3PutVarint(unsigned char*, u64);
-SQLITE_PRIVATE u8 tdsqlite3GetVarint(const unsigned char *, u64 *);
-SQLITE_PRIVATE u8 tdsqlite3GetVarint32(const unsigned char *, u32 *);
-SQLITE_PRIVATE int tdsqlite3VarintLen(u64 v);
-
-/*
-** The common case is for a varint to be a single byte.  They following
-** macros handle the common case without a procedure call, but then call
-** the procedure for larger varints.
-*/
-#define getVarint32(A,B)  \
-  (u8)((*(A)<(u8)0x80)?((B)=(u32)*(A)),1:tdsqlite3GetVarint32((A),(u32 *)&(B)))
-#define putVarint32(A,B)  \
-  (u8)(((u32)(B)<(u32)0x80)?(*(A)=(unsigned char)(B)),1:\
-  tdsqlite3PutVarint((A),(B)))
-#define getVarint    tdsqlite3GetVarint
-#define putVarint    tdsqlite3PutVarint
-
-
-SQLITE_PRIVATE const char *tdsqlite3IndexAffinityStr(tdsqlite3*, Index*);
-SQLITE_PRIVATE void tdsqlite3TableAffinity(Vdbe*, Table*, int);
-SQLITE_PRIVATE char tdsqlite3CompareAffinity(Expr *pExpr, char aff2);
-SQLITE_PRIVATE int tdsqlite3IndexAffinityOk(Expr *pExpr, char idx_affinity);
-SQLITE_PRIVATE char tdsqlite3TableColumnAffinity(Table*,int);
-SQLITE_PRIVATE char tdsqlite3ExprAffinity(Expr *pExpr);
-SQLITE_PRIVATE int tdsqlite3Atoi64(const char*, i64*, int, u8);
-SQLITE_PRIVATE int tdsqlite3DecOrHexToI64(const char*, i64*);
-SQLITE_PRIVATE void tdsqlite3ErrorWithMsg(tdsqlite3*, int, const char*,...);
-SQLITE_PRIVATE void tdsqlite3Error(tdsqlite3*,int);
-SQLITE_PRIVATE void tdsqlite3SystemError(tdsqlite3*,int);
-SQLITE_PRIVATE void *tdsqlite3HexToBlob(tdsqlite3*, const char *z, int n);
-SQLITE_PRIVATE u8 tdsqlite3HexToInt(int h);
-SQLITE_PRIVATE int tdsqlite3TwoPartName(Parse *, Token *, Token *, Token **);
-
-#if defined(SQLITE_NEED_ERR_NAME)
-SQLITE_PRIVATE const char *tdsqlite3ErrName(int);
-#endif
-
-#ifdef SQLITE_ENABLE_DESERIALIZE
-SQLITE_PRIVATE int tdsqlite3MemdbInit(void);
-#endif
-
-SQLITE_PRIVATE const char *tdsqlite3ErrStr(int);
-SQLITE_PRIVATE int tdsqlite3ReadSchema(Parse *pParse);
-SQLITE_PRIVATE CollSeq *tdsqlite3FindCollSeq(tdsqlite3*,u8 enc, const char*,int);
-SQLITE_PRIVATE int tdsqlite3IsBinary(const CollSeq*);
-SQLITE_PRIVATE CollSeq *tdsqlite3LocateCollSeq(Parse *pParse, const char*zName);
-SQLITE_PRIVATE CollSeq *tdsqlite3ExprCollSeq(Parse *pParse, Expr *pExpr);
-SQLITE_PRIVATE CollSeq *tdsqlite3ExprNNCollSeq(Parse *pParse, Expr *pExpr);
-SQLITE_PRIVATE int tdsqlite3ExprCollSeqMatch(Parse*,Expr*,Expr*);
-SQLITE_PRIVATE Expr *tdsqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int);
-SQLITE_PRIVATE Expr *tdsqlite3ExprAddCollateString(Parse*,Expr*,const char*);
-SQLITE_PRIVATE Expr *tdsqlite3ExprSkipCollate(Expr*);
-SQLITE_PRIVATE Expr *tdsqlite3ExprSkipCollateAndLikely(Expr*);
-SQLITE_PRIVATE int tdsqlite3CheckCollSeq(Parse *, CollSeq *);
-SQLITE_PRIVATE int tdsqlite3WritableSchema(tdsqlite3*);
-SQLITE_PRIVATE int tdsqlite3CheckObjectName(Parse*, const char*,const char*,const char*);
-SQLITE_PRIVATE void tdsqlite3VdbeSetChanges(tdsqlite3 *, int);
-SQLITE_PRIVATE int tdsqlite3AddInt64(i64*,i64);
-SQLITE_PRIVATE int tdsqlite3SubInt64(i64*,i64);
-SQLITE_PRIVATE int tdsqlite3MulInt64(i64*,i64);
-SQLITE_PRIVATE int tdsqlite3AbsInt32(int);
-#ifdef SQLITE_ENABLE_8_3_NAMES
-SQLITE_PRIVATE void tdsqlite3FileSuffix3(const char*, char*);
-#else
-# define tdsqlite3FileSuffix3(X,Y)
-#endif
-SQLITE_PRIVATE u8 tdsqlite3GetBoolean(const char *z,u8);
-
-SQLITE_PRIVATE const void *tdsqlite3ValueText(tdsqlite3_value*, u8);
-SQLITE_PRIVATE int tdsqlite3ValueBytes(tdsqlite3_value*, u8);
-SQLITE_PRIVATE void tdsqlite3ValueSetStr(tdsqlite3_value*, int, const void *,u8,
-                        void(*)(void*));
-SQLITE_PRIVATE void tdsqlite3ValueSetNull(tdsqlite3_value*);
-SQLITE_PRIVATE void tdsqlite3ValueFree(tdsqlite3_value*);
-#ifndef SQLITE_UNTESTABLE
-SQLITE_PRIVATE void tdsqlite3ResultIntReal(tdsqlite3_context*);
-#endif
-SQLITE_PRIVATE tdsqlite3_value *tdsqlite3ValueNew(tdsqlite3 *);
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_PRIVATE char *tdsqlite3Utf16to8(tdsqlite3 *, const void*, int, u8);
-#endif
-SQLITE_PRIVATE int tdsqlite3ValueFromExpr(tdsqlite3 *, Expr *, u8, u8, tdsqlite3_value **);
-SQLITE_PRIVATE void tdsqlite3ValueApplyAffinity(tdsqlite3_value *, u8, u8);
-#ifndef SQLITE_AMALGAMATION
-SQLITE_PRIVATE const unsigned char tdsqlite3OpcodeProperty[];
-SQLITE_PRIVATE const char tdsqlite3StrBINARY[];
-SQLITE_PRIVATE const unsigned char tdsqlite3UpperToLower[];
-SQLITE_PRIVATE const unsigned char tdsqlite3CtypeMap[];
-SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config tdsqlite3Config;
-SQLITE_PRIVATE FuncDefHash tdsqlite3BuiltinFunctions;
-#ifndef SQLITE_OMIT_WSD
-SQLITE_PRIVATE int tdsqlite3PendingByte;
-#endif
-#endif
-#ifdef VDBE_PROFILE
-SQLITE_PRIVATE tdsqlite3_uint64 tdsqlite3NProfileCnt;
-#endif
-SQLITE_PRIVATE void tdsqlite3RootPageMoved(tdsqlite3*, int, int, int);
-SQLITE_PRIVATE void tdsqlite3Reindex(Parse*, Token*, Token*);
-SQLITE_PRIVATE void tdsqlite3AlterFunctions(void);
-SQLITE_PRIVATE void tdsqlite3AlterRenameTable(Parse*, SrcList*, Token*);
-SQLITE_PRIVATE void tdsqlite3AlterRenameColumn(Parse*, SrcList*, Token*, Token*);
-SQLITE_PRIVATE int tdsqlite3GetToken(const unsigned char *, int *);
-SQLITE_PRIVATE void tdsqlite3NestedParse(Parse*, const char*, ...);
-SQLITE_PRIVATE void tdsqlite3ExpirePreparedStatements(tdsqlite3*, int);
-SQLITE_PRIVATE void tdsqlite3CodeRhsOfIN(Parse*, Expr*, int);
-SQLITE_PRIVATE int tdsqlite3CodeSubselect(Parse*, Expr*);
-SQLITE_PRIVATE void tdsqlite3SelectPrep(Parse*, Select*, NameContext*);
-SQLITE_PRIVATE void tdsqlite3SelectWrongNumTermsError(Parse *pParse, Select *p);
-SQLITE_PRIVATE int tdsqlite3MatchEName(
-  const struct ExprList_item*,
-  const char*,
-  const char*,
-  const char*
-);
-SQLITE_PRIVATE int tdsqlite3ResolveExprNames(NameContext*, Expr*);
-SQLITE_PRIVATE int tdsqlite3ResolveExprListNames(NameContext*, ExprList*);
-SQLITE_PRIVATE void tdsqlite3ResolveSelectNames(Parse*, Select*, NameContext*);
-SQLITE_PRIVATE int tdsqlite3ResolveSelfReference(Parse*,Table*,int,Expr*,ExprList*);
-SQLITE_PRIVATE int tdsqlite3ResolveOrderGroupBy(Parse*, Select*, ExprList*, const char*);
-SQLITE_PRIVATE void tdsqlite3ColumnDefault(Vdbe *, Table *, int, int);
-SQLITE_PRIVATE void tdsqlite3AlterFinishAddColumn(Parse *, Token *);
-SQLITE_PRIVATE void tdsqlite3AlterBeginAddColumn(Parse *, SrcList *);
-SQLITE_PRIVATE void *tdsqlite3RenameTokenMap(Parse*, void*, Token*);
-SQLITE_PRIVATE void tdsqlite3RenameTokenRemap(Parse*, void *pTo, void *pFrom);
-SQLITE_PRIVATE void tdsqlite3RenameExprUnmap(Parse*, Expr*);
-SQLITE_PRIVATE void tdsqlite3RenameExprlistUnmap(Parse*, ExprList*);
-SQLITE_PRIVATE CollSeq *tdsqlite3GetCollSeq(Parse*, u8, CollSeq *, const char*);
-SQLITE_PRIVATE char tdsqlite3AffinityType(const char*, Column*);
-SQLITE_PRIVATE void tdsqlite3Analyze(Parse*, Token*, Token*);
-SQLITE_PRIVATE int tdsqlite3InvokeBusyHandler(BusyHandler*, tdsqlite3_file*);
-SQLITE_PRIVATE int tdsqlite3FindDb(tdsqlite3*, Token*);
-SQLITE_PRIVATE int tdsqlite3FindDbName(tdsqlite3 *, const char *);
-SQLITE_PRIVATE int tdsqlite3AnalysisLoad(tdsqlite3*,int iDB);
-SQLITE_PRIVATE void tdsqlite3DeleteIndexSamples(tdsqlite3*,Index*);
-SQLITE_PRIVATE void tdsqlite3DefaultRowEst(Index*);
-SQLITE_PRIVATE void tdsqlite3RegisterLikeFunctions(tdsqlite3*, int);
-SQLITE_PRIVATE int tdsqlite3IsLikeFunction(tdsqlite3*,Expr*,int*,char*);
-SQLITE_PRIVATE void tdsqlite3SchemaClear(void *);
-SQLITE_PRIVATE Schema *tdsqlite3SchemaGet(tdsqlite3 *, Btree *);
-SQLITE_PRIVATE int tdsqlite3SchemaToIndex(tdsqlite3 *db, Schema *);
-SQLITE_PRIVATE KeyInfo *tdsqlite3KeyInfoAlloc(tdsqlite3*,int,int);
-SQLITE_PRIVATE void tdsqlite3KeyInfoUnref(KeyInfo*);
-SQLITE_PRIVATE KeyInfo *tdsqlite3KeyInfoRef(KeyInfo*);
-SQLITE_PRIVATE KeyInfo *tdsqlite3KeyInfoOfIndex(Parse*, Index*);
-SQLITE_PRIVATE KeyInfo *tdsqlite3KeyInfoFromExprList(Parse*, ExprList*, int, int);
-SQLITE_PRIVATE int tdsqlite3HasExplicitNulls(Parse*, ExprList*);
-
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3KeyInfoIsWriteable(KeyInfo*);
-#endif
-SQLITE_PRIVATE int tdsqlite3CreateFunc(tdsqlite3 *, const char *, int, int, void *,
-  void (*)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*)(tdsqlite3_context*,int,tdsqlite3_value **), 
-  void (*)(tdsqlite3_context*),
-  void (*)(tdsqlite3_context*),
-  void (*)(tdsqlite3_context*,int,tdsqlite3_value **), 
-  FuncDestructor *pDestructor
-);
-SQLITE_PRIVATE void tdsqlite3NoopDestructor(void*);
-SQLITE_PRIVATE void tdsqlite3OomFault(tdsqlite3*);
-SQLITE_PRIVATE void tdsqlite3OomClear(tdsqlite3*);
-SQLITE_PRIVATE int tdsqlite3ApiExit(tdsqlite3 *db, int);
-SQLITE_PRIVATE int tdsqlite3OpenTempDatabase(Parse *);
-
-SQLITE_PRIVATE void tdsqlite3StrAccumInit(StrAccum*, tdsqlite3*, char*, int, int);
-SQLITE_PRIVATE char *tdsqlite3StrAccumFinish(StrAccum*);
-SQLITE_PRIVATE void tdsqlite3SelectDestInit(SelectDest*,int,int);
-SQLITE_PRIVATE Expr *tdsqlite3CreateColumnExpr(tdsqlite3 *, SrcList *, int, int);
-
-SQLITE_PRIVATE void tdsqlite3BackupRestart(tdsqlite3_backup *);
-SQLITE_PRIVATE void tdsqlite3BackupUpdate(tdsqlite3_backup *, Pgno, const u8 *);
-
-#ifndef SQLITE_OMIT_SUBQUERY
-SQLITE_PRIVATE int tdsqlite3ExprCheckIN(Parse*, Expr*);
-#else
-# define tdsqlite3ExprCheckIN(x,y) SQLITE_OK
-#endif
-
-#ifdef SQLITE_ENABLE_STAT4
-SQLITE_PRIVATE int tdsqlite3Stat4ProbeSetValue(
-    Parse*,Index*,UnpackedRecord**,Expr*,int,int,int*);
-SQLITE_PRIVATE int tdsqlite3Stat4ValueFromExpr(Parse*, Expr*, u8, tdsqlite3_value**);
-SQLITE_PRIVATE void tdsqlite3Stat4ProbeFree(UnpackedRecord*);
-SQLITE_PRIVATE int tdsqlite3Stat4Column(tdsqlite3*, const void*, int, int, tdsqlite3_value**);
-SQLITE_PRIVATE char tdsqlite3IndexColumnAffinity(tdsqlite3*, Index*, int);
-#endif
-
-/*
-** The interface to the LEMON-generated parser
-*/
-#ifndef SQLITE_AMALGAMATION
-SQLITE_PRIVATE   void *tdsqlite3ParserAlloc(void*(*)(u64), Parse*);
-SQLITE_PRIVATE   void tdsqlite3ParserFree(void*, void(*)(void*));
-#endif
-SQLITE_PRIVATE void tdsqlite3Parser(void*, int, Token);
-SQLITE_PRIVATE int tdsqlite3ParserFallback(int);
-#ifdef YYTRACKMAXSTACKDEPTH
-SQLITE_PRIVATE   int tdsqlite3ParserStackPeak(void*);
-#endif
-
-SQLITE_PRIVATE void tdsqlite3AutoLoadExtensions(tdsqlite3*);
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-SQLITE_PRIVATE   void tdsqlite3CloseExtensions(tdsqlite3*);
-#else
-# define tdsqlite3CloseExtensions(X)
-#endif
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-SQLITE_PRIVATE   void tdsqlite3TableLock(Parse *, int, int, u8, const char *);
-#else
-  #define tdsqlite3TableLock(v,w,x,y,z)
-#endif
-
-#ifdef SQLITE_TEST
-SQLITE_PRIVATE   int tdsqlite3Utf8To8(unsigned char*);
-#endif
-
-#ifdef SQLITE_OMIT_VIRTUALTABLE
-#  define tdsqlite3VtabClear(Y)
-#  define tdsqlite3VtabSync(X,Y) SQLITE_OK
-#  define tdsqlite3VtabRollback(X)
-#  define tdsqlite3VtabCommit(X)
-#  define tdsqlite3VtabInSync(db) 0
-#  define tdsqlite3VtabLock(X)
-#  define tdsqlite3VtabUnlock(X)
-#  define tdsqlite3VtabModuleUnref(D,X)
-#  define tdsqlite3VtabUnlockList(X)
-#  define tdsqlite3VtabSavepoint(X, Y, Z) SQLITE_OK
-#  define tdsqlite3GetVTable(X,Y)  ((VTable*)0)
-#else
-SQLITE_PRIVATE    void tdsqlite3VtabClear(tdsqlite3 *db, Table*);
-SQLITE_PRIVATE    void tdsqlite3VtabDisconnect(tdsqlite3 *db, Table *p);
-SQLITE_PRIVATE    int tdsqlite3VtabSync(tdsqlite3 *db, Vdbe*);
-SQLITE_PRIVATE    int tdsqlite3VtabRollback(tdsqlite3 *db);
-SQLITE_PRIVATE    int tdsqlite3VtabCommit(tdsqlite3 *db);
-SQLITE_PRIVATE    void tdsqlite3VtabLock(VTable *);
-SQLITE_PRIVATE    void tdsqlite3VtabUnlock(VTable *);
-SQLITE_PRIVATE    void tdsqlite3VtabModuleUnref(tdsqlite3*,Module*);
-SQLITE_PRIVATE    void tdsqlite3VtabUnlockList(tdsqlite3*);
-SQLITE_PRIVATE    int tdsqlite3VtabSavepoint(tdsqlite3 *, int, int);
-SQLITE_PRIVATE    void tdsqlite3VtabImportErrmsg(Vdbe*, tdsqlite3_vtab*);
-SQLITE_PRIVATE    VTable *tdsqlite3GetVTable(tdsqlite3*, Table*);
-SQLITE_PRIVATE    Module *tdsqlite3VtabCreateModule(
-     tdsqlite3*,
-     const char*,
-     const tdsqlite3_module*,
-     void*,
-     void(*)(void*)
-   );
-#  define tdsqlite3VtabInSync(db) ((db)->nVTrans>0 && (db)->aVTrans==0)
-#endif
-SQLITE_PRIVATE int tdsqlite3ReadOnlyShadowTables(tdsqlite3 *db);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-SQLITE_PRIVATE   int tdsqlite3ShadowTableName(tdsqlite3 *db, const char *zName);
-#else
-# define tdsqlite3ShadowTableName(A,B) 0
-#endif
-SQLITE_PRIVATE int tdsqlite3VtabEponymousTableInit(Parse*,Module*);
-SQLITE_PRIVATE void tdsqlite3VtabEponymousTableClear(tdsqlite3*,Module*);
-SQLITE_PRIVATE void tdsqlite3VtabMakeWritable(Parse*,Table*);
-SQLITE_PRIVATE void tdsqlite3VtabBeginParse(Parse*, Token*, Token*, Token*, int);
-SQLITE_PRIVATE void tdsqlite3VtabFinishParse(Parse*, Token*);
-SQLITE_PRIVATE void tdsqlite3VtabArgInit(Parse*);
-SQLITE_PRIVATE void tdsqlite3VtabArgExtend(Parse*, Token*);
-SQLITE_PRIVATE int tdsqlite3VtabCallCreate(tdsqlite3*, int, const char *, char **);
-SQLITE_PRIVATE int tdsqlite3VtabCallConnect(Parse*, Table*);
-SQLITE_PRIVATE int tdsqlite3VtabCallDestroy(tdsqlite3*, int, const char *);
-SQLITE_PRIVATE int tdsqlite3VtabBegin(tdsqlite3 *, VTable *);
-SQLITE_PRIVATE FuncDef *tdsqlite3VtabOverloadFunction(tdsqlite3 *,FuncDef*, int nArg, Expr*);
-SQLITE_PRIVATE tdsqlite3_int64 tdsqlite3StmtCurrentTime(tdsqlite3_context*);
-SQLITE_PRIVATE int tdsqlite3VdbeParameterIndex(Vdbe*, const char*, int);
-SQLITE_PRIVATE int tdsqlite3TransferBindings(tdsqlite3_stmt *, tdsqlite3_stmt *);
-SQLITE_PRIVATE void tdsqlite3ParserReset(Parse*);
-#ifdef SQLITE_ENABLE_NORMALIZE
-SQLITE_PRIVATE char *tdsqlite3Normalize(Vdbe*, const char*);
-#endif
-SQLITE_PRIVATE int tdsqlite3Reprepare(Vdbe*);
-SQLITE_PRIVATE void tdsqlite3ExprListCheckLength(Parse*, ExprList*, const char*);
-SQLITE_PRIVATE CollSeq *tdsqlite3ExprCompareCollSeq(Parse*,Expr*);
-SQLITE_PRIVATE CollSeq *tdsqlite3BinaryCompareCollSeq(Parse *, Expr *, Expr *);
-SQLITE_PRIVATE int tdsqlite3TempInMemory(const tdsqlite3*);
-SQLITE_PRIVATE const char *tdsqlite3JournalModename(int);
-#ifndef SQLITE_OMIT_WAL
-SQLITE_PRIVATE   int tdsqlite3Checkpoint(tdsqlite3*, int, int, int*, int*);
-SQLITE_PRIVATE   int tdsqlite3WalDefaultHook(void*,tdsqlite3*,const char*,int);
-#endif
-#ifndef SQLITE_OMIT_CTE
-SQLITE_PRIVATE   With *tdsqlite3WithAdd(Parse*,With*,Token*,ExprList*,Select*);
-SQLITE_PRIVATE   void tdsqlite3WithDelete(tdsqlite3*,With*);
-SQLITE_PRIVATE   void tdsqlite3WithPush(Parse*, With*, u8);
-#else
-#define tdsqlite3WithPush(x,y,z)
-#define tdsqlite3WithDelete(x,y)
-#endif
-#ifndef SQLITE_OMIT_UPSERT
-SQLITE_PRIVATE   Upsert *tdsqlite3UpsertNew(tdsqlite3*,ExprList*,Expr*,ExprList*,Expr*);
-SQLITE_PRIVATE   void tdsqlite3UpsertDelete(tdsqlite3*,Upsert*);
-SQLITE_PRIVATE   Upsert *tdsqlite3UpsertDup(tdsqlite3*,Upsert*);
-SQLITE_PRIVATE   int tdsqlite3UpsertAnalyzeTarget(Parse*,SrcList*,Upsert*);
-SQLITE_PRIVATE   void tdsqlite3UpsertDoUpdate(Parse*,Upsert*,Table*,Index*,int);
-#else
-#define tdsqlite3UpsertNew(v,w,x,y,z) ((Upsert*)0)
-#define tdsqlite3UpsertDelete(x,y)
-#define tdsqlite3UpsertDup(x,y)       ((Upsert*)0)
-#endif
-
-
-/* Declarations for functions in fkey.c. All of these are replaced by
-** no-op macros if OMIT_FOREIGN_KEY is defined. In this case no foreign
-** key functionality is available. If OMIT_TRIGGER is defined but
-** OMIT_FOREIGN_KEY is not, only some of the functions are no-oped. In
-** this case foreign keys are parsed, but no other functionality is
-** provided (enforcement of FK constraints requires the triggers sub-system).
-*/
-#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
-SQLITE_PRIVATE   void tdsqlite3FkCheck(Parse*, Table*, int, int, int*, int);
-SQLITE_PRIVATE   void tdsqlite3FkDropTable(Parse*, SrcList *, Table*);
-SQLITE_PRIVATE   void tdsqlite3FkActions(Parse*, Table*, ExprList*, int, int*, int);
-SQLITE_PRIVATE   int tdsqlite3FkRequired(Parse*, Table*, int*, int);
-SQLITE_PRIVATE   u32 tdsqlite3FkOldmask(Parse*, Table*);
-SQLITE_PRIVATE   FKey *tdsqlite3FkReferences(Table *);
-#else
-  #define tdsqlite3FkActions(a,b,c,d,e,f)
-  #define tdsqlite3FkCheck(a,b,c,d,e,f)
-  #define tdsqlite3FkDropTable(a,b,c)
-  #define tdsqlite3FkOldmask(a,b)         0
-  #define tdsqlite3FkRequired(a,b,c,d)    0
-  #define tdsqlite3FkReferences(a)        0
-#endif
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-SQLITE_PRIVATE   void tdsqlite3FkDelete(tdsqlite3 *, Table*);
-SQLITE_PRIVATE   int tdsqlite3FkLocateIndex(Parse*,Table*,FKey*,Index**,int**);
-#else
-  #define tdsqlite3FkDelete(a,b)
-  #define tdsqlite3FkLocateIndex(a,b,c,d,e)
-#endif
-
-
-/*
-** Available fault injectors.  Should be numbered beginning with 0.
-*/
-#define SQLITE_FAULTINJECTOR_MALLOC     0
-#define SQLITE_FAULTINJECTOR_COUNT      1
-
-/*
-** The interface to the code in fault.c used for identifying "benign"
-** malloc failures. This is only present if SQLITE_UNTESTABLE
-** is not defined.
-*/
-#ifndef SQLITE_UNTESTABLE
-SQLITE_PRIVATE   void tdsqlite3BeginBenignMalloc(void);
-SQLITE_PRIVATE   void tdsqlite3EndBenignMalloc(void);
-#else
-  #define tdsqlite3BeginBenignMalloc()
-  #define tdsqlite3EndBenignMalloc()
-#endif
-
-/*
-** Allowed return values from tdsqlite3FindInIndex()
-*/
-#define IN_INDEX_ROWID        1   /* Search the rowid of the table */
-#define IN_INDEX_EPH          2   /* Search an ephemeral b-tree */
-#define IN_INDEX_INDEX_ASC    3   /* Existing index ASCENDING */
-#define IN_INDEX_INDEX_DESC   4   /* Existing index DESCENDING */
-#define IN_INDEX_NOOP         5   /* No table available. Use comparisons */
-/*
-** Allowed flags for the 3rd parameter to tdsqlite3FindInIndex().
-*/
-#define IN_INDEX_NOOP_OK     0x0001  /* OK to return IN_INDEX_NOOP */
-#define IN_INDEX_MEMBERSHIP  0x0002  /* IN operator used for membership test */
-#define IN_INDEX_LOOP        0x0004  /* IN operator used as a loop */
-SQLITE_PRIVATE int tdsqlite3FindInIndex(Parse *, Expr *, u32, int*, int*, int*);
-
-SQLITE_PRIVATE int tdsqlite3JournalOpen(tdsqlite3_vfs *, const char *, tdsqlite3_file *, int, int);
-SQLITE_PRIVATE int tdsqlite3JournalSize(tdsqlite3_vfs *);
-#if defined(SQLITE_ENABLE_ATOMIC_WRITE) \
- || defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
-SQLITE_PRIVATE   int tdsqlite3JournalCreate(tdsqlite3_file *);
-#endif
-
-SQLITE_PRIVATE int tdsqlite3JournalIsInMemory(tdsqlite3_file *p);
-SQLITE_PRIVATE void tdsqlite3MemJournalOpen(tdsqlite3_file *);
-
-SQLITE_PRIVATE void tdsqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p);
-#if SQLITE_MAX_EXPR_DEPTH>0
-SQLITE_PRIVATE   int tdsqlite3SelectExprHeight(Select *);
-SQLITE_PRIVATE   int tdsqlite3ExprCheckHeight(Parse*, int);
-#else
-  #define tdsqlite3SelectExprHeight(x) 0
-  #define tdsqlite3ExprCheckHeight(x,y)
-#endif
-
-SQLITE_PRIVATE u32 tdsqlite3Get4byte(const u8*);
-SQLITE_PRIVATE void tdsqlite3Put4byte(u8*, u32);
-
-#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
-SQLITE_PRIVATE   void tdsqlite3ConnectionBlocked(tdsqlite3 *, tdsqlite3 *);
-SQLITE_PRIVATE   void tdsqlite3ConnectionUnlocked(tdsqlite3 *db);
-SQLITE_PRIVATE   void tdsqlite3ConnectionClosed(tdsqlite3 *db);
-#else
-  #define tdsqlite3ConnectionBlocked(x,y)
-  #define tdsqlite3ConnectionUnlocked(x)
-  #define tdsqlite3ConnectionClosed(x)
-#endif
-
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE   void tdsqlite3ParserTrace(FILE*, char *);
-#endif
-#if defined(YYCOVERAGE)
-SQLITE_PRIVATE   int tdsqlite3ParserCoverage(FILE*);
-#endif
-
-/*
-** If the SQLITE_ENABLE IOTRACE exists then the global variable
-** tdsqlite3IoTrace is a pointer to a printf-like routine used to
-** print I/O tracing messages.
-*/
-#ifdef SQLITE_ENABLE_IOTRACE
-# define IOTRACE(A)  if( tdsqlite3IoTrace ){ tdsqlite3IoTrace A; }
-SQLITE_PRIVATE   void tdsqlite3VdbeIOTraceSql(Vdbe*);
-SQLITE_API SQLITE_EXTERN void (SQLITE_CDECL *tdsqlite3IoTrace)(const char*,...);
-#else
-# define IOTRACE(A)
-# define tdsqlite3VdbeIOTraceSql(X)
-#endif
-
-/*
-** These routines are available for the mem2.c debugging memory allocator
-** only.  They are used to verify that different "types" of memory
-** allocations are properly tracked by the system.
-**
-** tdsqlite3MemdebugSetType() sets the "type" of an allocation to one of
-** the MEMTYPE_* macros defined below.  The type must be a bitmask with
-** a single bit set.
-**
-** tdsqlite3MemdebugHasType() returns true if any of the bits in its second
-** argument match the type set by the previous tdsqlite3MemdebugSetType().
-** tdsqlite3MemdebugHasType() is intended for use inside assert() statements.
-**
-** tdsqlite3MemdebugNoType() returns true if none of the bits in its second
-** argument match the type set by the previous tdsqlite3MemdebugSetType().
-**
-** Perhaps the most important point is the difference between MEMTYPE_HEAP
-** and MEMTYPE_LOOKASIDE.  If an allocation is MEMTYPE_LOOKASIDE, that means
-** it might have been allocated by lookaside, except the allocation was
-** too large or lookaside was already full.  It is important to verify
-** that allocations that might have been satisfied by lookaside are not
-** passed back to non-lookaside free() routines.  Asserts such as the
-** example above are placed on the non-lookaside free() routines to verify
-** this constraint.
-**
-** All of this is no-op for a production build.  It only comes into
-** play when the SQLITE_MEMDEBUG compile-time option is used.
-*/
-#ifdef SQLITE_MEMDEBUG
-SQLITE_PRIVATE   void tdsqlite3MemdebugSetType(void*,u8);
-SQLITE_PRIVATE   int tdsqlite3MemdebugHasType(void*,u8);
-SQLITE_PRIVATE   int tdsqlite3MemdebugNoType(void*,u8);
-#else
-# define tdsqlite3MemdebugSetType(X,Y)  /* no-op */
-# define tdsqlite3MemdebugHasType(X,Y)  1
-# define tdsqlite3MemdebugNoType(X,Y)   1
-#endif
-#define MEMTYPE_HEAP       0x01  /* General heap allocations */
-#define MEMTYPE_LOOKASIDE  0x02  /* Heap that might have been lookaside */
-#define MEMTYPE_PCACHE     0x04  /* Page cache allocations */
-
-/*
-** Threading interface
-*/
-#if SQLITE_MAX_WORKER_THREADS>0
-SQLITE_PRIVATE int tdsqlite3ThreadCreate(SQLiteThread**,void*(*)(void*),void*);
-SQLITE_PRIVATE int tdsqlite3ThreadJoin(SQLiteThread*, void**);
-#endif
-
-#if defined(SQLITE_ENABLE_DBPAGE_VTAB) || defined(SQLITE_TEST)
-SQLITE_PRIVATE int tdsqlite3DbpageRegister(tdsqlite3*);
-#endif
-#if defined(SQLITE_ENABLE_DBSTAT_VTAB) || defined(SQLITE_TEST)
-SQLITE_PRIVATE int tdsqlite3DbstatRegister(tdsqlite3*);
-#endif
-
-SQLITE_PRIVATE int tdsqlite3ExprVectorSize(Expr *pExpr);
-SQLITE_PRIVATE int tdsqlite3ExprIsVector(Expr *pExpr);
-SQLITE_PRIVATE Expr *tdsqlite3VectorFieldSubexpr(Expr*, int);
-SQLITE_PRIVATE Expr *tdsqlite3ExprForVectorField(Parse*,Expr*,int);
-SQLITE_PRIVATE void tdsqlite3VectorErrorMsg(Parse*, Expr*);
-
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-SQLITE_PRIVATE const char **tdsqlite3CompileOptions(int *pnOpt);
-#endif
-
-#endif /* SQLITEINT_H */
-
-/************** End of sqliteInt.h *******************************************/
-/************** Begin file crypto.c ******************************************/
-/* 
-** SQLCipher
-** http://sqlcipher.net
-** 
-** Copyright (c) 2008 - 2013, ZETETIC LLC
-** All rights reserved.
-** 
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-**     * Redistributions of source code must retain the above copyright
-**       notice, this list of conditions and the following disclaimer.
-**     * Redistributions in binary form must reproduce the above copyright
-**       notice, this list of conditions and the following disclaimer in the
-**       documentation and/or other materials provided with the distribution.
-**     * Neither the name of the ZETETIC LLC nor the
-**       names of its contributors may be used to endorse or promote products
-**       derived from this software without specific prior written permission.
-** 
-** THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
-** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-** DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
-** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-**  
-*/
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-
-/* #include <assert.h> */
-/************** Include sqlcipher.h in the middle of crypto.c ****************/
-/************** Begin file sqlcipher.h ***************************************/
-/* 
-** SQLCipher
-** sqlcipher.h developed by Stephen Lombardo (Zetetic LLC) 
-** sjlombardo at zetetic dot net
-** http://zetetic.net
-** 
-** Copyright (c) 2008, ZETETIC LLC
-** All rights reserved.
-** 
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-**     * Redistributions of source code must retain the above copyright
-**       notice, this list of conditions and the following disclaimer.
-**     * Redistributions in binary form must reproduce the above copyright
-**       notice, this list of conditions and the following disclaimer in the
-**       documentation and/or other materials provided with the distribution.
-**     * Neither the name of the ZETETIC LLC nor the
-**       names of its contributors may be used to endorse or promote products
-**       derived from this software without specific prior written permission.
-** 
-** THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
-** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-** DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
-** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-**  
-*/
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-#ifndef SQLCIPHER_H
-#define SQLCIPHER_H
-
-#define SQLCIPHER_HMAC_SHA1 0
-#define SQLCIPHER_HMAC_SHA1_LABEL "HMAC_SHA1"
-#define SQLCIPHER_HMAC_SHA256 1
-#define SQLCIPHER_HMAC_SHA256_LABEL "HMAC_SHA256"
-#define SQLCIPHER_HMAC_SHA512 2
-#define SQLCIPHER_HMAC_SHA512_LABEL "HMAC_SHA512"
-
-
-#define SQLCIPHER_PBKDF2_HMAC_SHA1 0
-#define SQLCIPHER_PBKDF2_HMAC_SHA1_LABEL "PBKDF2_HMAC_SHA1"
-#define SQLCIPHER_PBKDF2_HMAC_SHA256 1
-#define SQLCIPHER_PBKDF2_HMAC_SHA256_LABEL "PBKDF2_HMAC_SHA256"
-#define SQLCIPHER_PBKDF2_HMAC_SHA512 2
-#define SQLCIPHER_PBKDF2_HMAC_SHA512_LABEL "PBKDF2_HMAC_SHA512"
-
-
-typedef struct {
-  int (*activate)(void *ctx);
-  int (*deactivate)(void *ctx);
-  const char* (*get_provider_name)(void *ctx);
-  int (*add_random)(void *ctx, void *buffer, int length);
-  int (*random)(void *ctx, void *buffer, int length);
-  int (*hmac)(void *ctx, int algorithm, unsigned char *hmac_key, int key_sz, unsigned char *in, int in_sz, unsigned char *in2, int in2_sz, unsigned char *out);
-  int (*kdf)(void *ctx, int algorithm, const unsigned char *pass, int pass_sz, unsigned char* salt, int salt_sz, int workfactor, int key_sz, unsigned char *key);
-  int (*cipher)(void *ctx, int mode, unsigned char *key, int key_sz, unsigned char *iv, unsigned char *in, int in_sz, unsigned char *out);
-  const char* (*get_cipher)(void *ctx);
-  int (*get_key_sz)(void *ctx);
-  int (*get_iv_sz)(void *ctx);
-  int (*get_block_sz)(void *ctx);
-  int (*get_hmac_sz)(void *ctx, int algorithm);
-  int (*ctx_init)(void **ctx);
-  int (*ctx_free)(void **ctx);
-  int (*fips_status)(void *ctx);
-  const char* (*get_provider_version)(void *ctx);
-} sqlcipher_provider;
-
-/* utility functions */
-SQLITE_PRIVATE void* sqlcipher_malloc(u64);
-SQLITE_PRIVATE void sqlcipher_mlock(void *, u64);
-SQLITE_PRIVATE void sqlcipher_munlock(void *, u64);
-SQLITE_PRIVATE void* sqlcipher_memset(void *, unsigned char, u64);
-SQLITE_PRIVATE int sqlcipher_ismemset(const void *, unsigned char, u64);
-SQLITE_PRIVATE int sqlcipher_memcmp(const void *, const void *, int);
-SQLITE_PRIVATE void sqlcipher_free(void *, u64);
-SQLITE_PRIVATE char* sqlcipher_version();
-
-/* provider interfaces */
-SQLITE_PRIVATE int sqlcipher_register_provider(sqlcipher_provider *);
-SQLITE_PRIVATE sqlcipher_provider* sqlcipher_get_provider(void);
-
-#define SQLCIPHER_MUTEX_PROVIDER          0
-#define SQLCIPHER_MUTEX_PROVIDER_ACTIVATE 1
-#define SQLCIPHER_MUTEX_PROVIDER_RAND     2
-#define SQLCIPHER_MUTEX_RESERVED1         3
-#define SQLCIPHER_MUTEX_RESERVED2         4
-#define SQLCIPHER_MUTEX_RESERVED3         5
-#define SQLCIPHER_MUTEX_COUNT             6
-
-SQLITE_PRIVATE tdsqlite3_mutex* sqlcipher_mutex(int);
-
-#endif
-#endif
-/* END SQLCIPHER */
-
-
-/************** End of sqlcipher.h *******************************************/
-/************** Continuing where we left off in crypto.c *********************/
-/************** Include crypto.h in the middle of crypto.c *******************/
-/************** Begin file crypto.h ******************************************/
-/* 
-** SQLCipher
-** crypto.h developed by Stephen Lombardo (Zetetic LLC) 
-** sjlombardo at zetetic dot net
-** http://zetetic.net
-** 
-** Copyright (c) 2008, ZETETIC LLC
-** All rights reserved.
-** 
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-**     * Redistributions of source code must retain the above copyright
-**       notice, this list of conditions and the following disclaimer.
-**     * Redistributions in binary form must reproduce the above copyright
-**       notice, this list of conditions and the following disclaimer in the
-**       documentation and/or other materials provided with the distribution.
-**     * Neither the name of the ZETETIC LLC nor the
-**       names of its contributors may be used to endorse or promote products
-**       derived from this software without specific prior written permission.
-** 
-** THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
-** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-** DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
-** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-**  
-*/
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-#ifndef CRYPTO_H
-#define CRYPTO_H
-
-/* #include "sqliteInt.h" */
-/************** Include btreeInt.h in the middle of crypto.h *****************/
-/************** Begin file btreeInt.h ****************************************/
-/*
-** 2004 April 6
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file implements an external (disk-based) database using BTrees.
-** For a detailed discussion of BTrees, refer to
-**
-**     Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3:
-**     "Sorting And Searching", pages 473-480. Addison-Wesley
-**     Publishing Company, Reading, Massachusetts.
-**
-** The basic idea is that each page of the file contains N database
-** entries and N+1 pointers to subpages.
-**
-**   ----------------------------------------------------------------
-**   |  Ptr(0) | Key(0) | Ptr(1) | Key(1) | ... | Key(N-1) | Ptr(N) |
-**   ----------------------------------------------------------------
-**
-** All of the keys on the page that Ptr(0) points to have values less
-** than Key(0).  All of the keys on page Ptr(1) and its subpages have
-** values greater than Key(0) and less than Key(1).  All of the keys
-** on Ptr(N) and its subpages have values greater than Key(N-1).  And
-** so forth.
-**
-** Finding a particular key requires reading O(log(M)) pages from the 
-** disk where M is the number of entries in the tree.
-**
-** In this implementation, a single file can hold one or more separate 
-** BTrees.  Each BTree is identified by the index of its root page.  The
-** key and data for any entry are combined to form the "payload".  A
-** fixed amount of payload can be carried directly on the database
-** page.  If the payload is larger than the preset amount then surplus
-** bytes are stored on overflow pages.  The payload for an entry
-** and the preceding pointer are combined to form a "Cell".  Each 
-** page has a small header which contains the Ptr(N) pointer and other
-** information such as the size of key and data.
-**
-** FORMAT DETAILS
-**
-** The file is divided into pages.  The first page is called page 1,
-** the second is page 2, and so forth.  A page number of zero indicates
-** "no such page".  The page size can be any power of 2 between 512 and 65536.
-** Each page can be either a btree page, a freelist page, an overflow
-** page, or a pointer-map page.
-**
-** The first page is always a btree page.  The first 100 bytes of the first
-** page contain a special header (the "file header") that describes the file.
-** The format of the file header is as follows:
-**
-**   OFFSET   SIZE    DESCRIPTION
-**      0      16     Header string: "SQLite format 3\000"
-**     16       2     Page size in bytes.  (1 means 65536)
-**     18       1     File format write version
-**     19       1     File format read version
-**     20       1     Bytes of unused space at the end of each page
-**     21       1     Max embedded payload fraction (must be 64)
-**     22       1     Min embedded payload fraction (must be 32)
-**     23       1     Min leaf payload fraction (must be 32)
-**     24       4     File change counter
-**     28       4     Reserved for future use
-**     32       4     First freelist page
-**     36       4     Number of freelist pages in the file
-**     40      60     15 4-byte meta values passed to higher layers
-**
-**     40       4     Schema cookie
-**     44       4     File format of schema layer
-**     48       4     Size of page cache
-**     52       4     Largest root-page (auto/incr_vacuum)
-**     56       4     1=UTF-8 2=UTF16le 3=UTF16be
-**     60       4     User version
-**     64       4     Incremental vacuum mode
-**     68       4     Application-ID
-**     72      20     unused
-**     92       4     The version-valid-for number
-**     96       4     SQLITE_VERSION_NUMBER
-**
-** All of the integer values are big-endian (most significant byte first).
-**
-** The file change counter is incremented when the database is changed
-** This counter allows other processes to know when the file has changed
-** and thus when they need to flush their cache.
-**
-** The max embedded payload fraction is the amount of the total usable
-** space in a page that can be consumed by a single cell for standard
-** B-tree (non-LEAFDATA) tables.  A value of 255 means 100%.  The default
-** is to limit the maximum cell size so that at least 4 cells will fit
-** on one page.  Thus the default max embedded payload fraction is 64.
-**
-** If the payload for a cell is larger than the max payload, then extra
-** payload is spilled to overflow pages.  Once an overflow page is allocated,
-** as many bytes as possible are moved into the overflow pages without letting
-** the cell size drop below the min embedded payload fraction.
-**
-** The min leaf payload fraction is like the min embedded payload fraction
-** except that it applies to leaf nodes in a LEAFDATA tree.  The maximum
-** payload fraction for a LEAFDATA tree is always 100% (or 255) and it
-** not specified in the header.
-**
-** Each btree pages is divided into three sections:  The header, the
-** cell pointer array, and the cell content area.  Page 1 also has a 100-byte
-** file header that occurs before the page header.
-**
-**      |----------------|
-**      | file header    |   100 bytes.  Page 1 only.
-**      |----------------|
-**      | page header    |   8 bytes for leaves.  12 bytes for interior nodes
-**      |----------------|
-**      | cell pointer   |   |  2 bytes per cell.  Sorted order.
-**      | array          |   |  Grows downward
-**      |                |   v
-**      |----------------|
-**      | unallocated    |
-**      | space          |
-**      |----------------|   ^  Grows upwards
-**      | cell content   |   |  Arbitrary order interspersed with freeblocks.
-**      | area           |   |  and free space fragments.
-**      |----------------|
-**
-** The page headers looks like this:
-**
-**   OFFSET   SIZE     DESCRIPTION
-**      0       1      Flags. 1: intkey, 2: zerodata, 4: leafdata, 8: leaf
-**      1       2      byte offset to the first freeblock
-**      3       2      number of cells on this page
-**      5       2      first byte of the cell content area
-**      7       1      number of fragmented free bytes
-**      8       4      Right child (the Ptr(N) value).  Omitted on leaves.
-**
-** The flags define the format of this btree page.  The leaf flag means that
-** this page has no children.  The zerodata flag means that this page carries
-** only keys and no data.  The intkey flag means that the key is an integer
-** which is stored in the key size entry of the cell header rather than in
-** the payload area.
-**
-** The cell pointer array begins on the first byte after the page header.
-** The cell pointer array contains zero or more 2-byte numbers which are
-** offsets from the beginning of the page to the cell content in the cell
-** content area.  The cell pointers occur in sorted order.  The system strives
-** to keep free space after the last cell pointer so that new cells can
-** be easily added without having to defragment the page.
-**
-** Cell content is stored at the very end of the page and grows toward the
-** beginning of the page.
-**
-** Unused space within the cell content area is collected into a linked list of
-** freeblocks.  Each freeblock is at least 4 bytes in size.  The byte offset
-** to the first freeblock is given in the header.  Freeblocks occur in
-** increasing order.  Because a freeblock must be at least 4 bytes in size,
-** any group of 3 or fewer unused bytes in the cell content area cannot
-** exist on the freeblock chain.  A group of 3 or fewer free bytes is called
-** a fragment.  The total number of bytes in all fragments is recorded.
-** in the page header at offset 7.
-**
-**    SIZE    DESCRIPTION
-**      2     Byte offset of the next freeblock
-**      2     Bytes in this freeblock
-**
-** Cells are of variable length.  Cells are stored in the cell content area at
-** the end of the page.  Pointers to the cells are in the cell pointer array
-** that immediately follows the page header.  Cells is not necessarily
-** contiguous or in order, but cell pointers are contiguous and in order.
-**
-** Cell content makes use of variable length integers.  A variable
-** length integer is 1 to 9 bytes where the lower 7 bits of each 
-** byte are used.  The integer consists of all bytes that have bit 8 set and
-** the first byte with bit 8 clear.  The most significant byte of the integer
-** appears first.  A variable-length integer may not be more than 9 bytes long.
-** As a special case, all 8 bytes of the 9th byte are used as data.  This
-** allows a 64-bit integer to be encoded in 9 bytes.
-**
-**    0x00                      becomes  0x00000000
-**    0x7f                      becomes  0x0000007f
-**    0x81 0x00                 becomes  0x00000080
-**    0x82 0x00                 becomes  0x00000100
-**    0x80 0x7f                 becomes  0x0000007f
-**    0x8a 0x91 0xd1 0xac 0x78  becomes  0x12345678
-**    0x81 0x81 0x81 0x81 0x01  becomes  0x10204081
-**
-** Variable length integers are used for rowids and to hold the number of
-** bytes of key and data in a btree cell.
-**
-** The content of a cell looks like this:
-**
-**    SIZE    DESCRIPTION
-**      4     Page number of the left child. Omitted if leaf flag is set.
-**     var    Number of bytes of data. Omitted if the zerodata flag is set.
-**     var    Number of bytes of key. Or the key itself if intkey flag is set.
-**      *     Payload
-**      4     First page of the overflow chain.  Omitted if no overflow
-**
-** Overflow pages form a linked list.  Each page except the last is completely
-** filled with data (pagesize - 4 bytes).  The last page can have as little
-** as 1 byte of data.
-**
-**    SIZE    DESCRIPTION
-**      4     Page number of next overflow page
-**      *     Data
-**
-** Freelist pages come in two subtypes: trunk pages and leaf pages.  The
-** file header points to the first in a linked list of trunk page.  Each trunk
-** page points to multiple leaf pages.  The content of a leaf page is
-** unspecified.  A trunk page looks like this:
-**
-**    SIZE    DESCRIPTION
-**      4     Page number of next trunk page
-**      4     Number of leaf pointers on this page
-**      *     zero or more pages numbers of leaves
-*/
-/* #include "sqliteInt.h" */
-
-
-/* The following value is the maximum cell size assuming a maximum page
-** size give above.
-*/
-#define MX_CELL_SIZE(pBt)  ((int)(pBt->pageSize-8))
-
-/* The maximum number of cells on a single page of the database.  This
-** assumes a minimum cell size of 6 bytes  (4 bytes for the cell itself
-** plus 2 bytes for the index to the cell in the page header).  Such
-** small cells will be rare, but they are possible.
-*/
-#define MX_CELL(pBt) ((pBt->pageSize-8)/6)
-
-/* Forward declarations */
-typedef struct MemPage MemPage;
-typedef struct BtLock BtLock;
-typedef struct CellInfo CellInfo;
-
-/*
-** This is a magic string that appears at the beginning of every
-** SQLite database in order to identify the file as a real database.
-**
-** You can change this value at compile-time by specifying a
-** -DSQLITE_FILE_HEADER="..." on the compiler command-line.  The
-** header must be exactly 16 bytes including the zero-terminator so
-** the string itself should be 15 characters long.  If you change
-** the header, then your custom library will not be able to read 
-** databases generated by the standard tools and the standard tools
-** will not be able to read databases created by your custom library.
-*/
-#ifndef SQLITE_FILE_HEADER /* 123456789 123456 */
-#  define SQLITE_FILE_HEADER "SQLite format 3"
-#endif
-
-/*
-** Page type flags.  An ORed combination of these flags appear as the
-** first byte of on-disk image of every BTree page.
-*/
-#define PTF_INTKEY    0x01
-#define PTF_ZERODATA  0x02
-#define PTF_LEAFDATA  0x04
-#define PTF_LEAF      0x08
-
-/*
-** An instance of this object stores information about each a single database
-** page that has been loaded into memory.  The information in this object
-** is derived from the raw on-disk page content.
-**
-** As each database page is loaded into memory, the pager allocats an
-** instance of this object and zeros the first 8 bytes.  (This is the
-** "extra" information associated with each page of the pager.)
-**
-** Access to all fields of this structure is controlled by the mutex
-** stored in MemPage.pBt->mutex.
-*/
-struct MemPage {
-  u8 isInit;           /* True if previously initialized. MUST BE FIRST! */
-  u8 bBusy;            /* Prevent endless loops on corrupt database files */
-  u8 intKey;           /* True if table b-trees.  False for index b-trees */
-  u8 intKeyLeaf;       /* True if the leaf of an intKey table */
-  Pgno pgno;           /* Page number for this page */
-  /* Only the first 8 bytes (above) are zeroed by pager.c when a new page
-  ** is allocated. All fields that follow must be initialized before use */
-  u8 leaf;             /* True if a leaf page */
-  u8 hdrOffset;        /* 100 for page 1.  0 otherwise */
-  u8 childPtrSize;     /* 0 if leaf==1.  4 if leaf==0 */
-  u8 max1bytePayload;  /* min(maxLocal,127) */
-  u8 nOverflow;        /* Number of overflow cell bodies in aCell[] */
-  u16 maxLocal;        /* Copy of BtShared.maxLocal or BtShared.maxLeaf */
-  u16 minLocal;        /* Copy of BtShared.minLocal or BtShared.minLeaf */
-  u16 cellOffset;      /* Index in aData of first cell pointer */
-  int nFree;           /* Number of free bytes on the page. -1 for unknown */
-  u16 nCell;           /* Number of cells on this page, local and ovfl */
-  u16 maskPage;        /* Mask for page offset */
-  u16 aiOvfl[4];       /* Insert the i-th overflow cell before the aiOvfl-th
-                       ** non-overflow cell */
-  u8 *apOvfl[4];       /* Pointers to the body of overflow cells */
-  BtShared *pBt;       /* Pointer to BtShared that this page is part of */
-  u8 *aData;           /* Pointer to disk image of the page data */
-  u8 *aDataEnd;        /* One byte past the end of usable data */
-  u8 *aCellIdx;        /* The cell index area */
-  u8 *aDataOfst;       /* Same as aData for leaves.  aData+4 for interior */
-  DbPage *pDbPage;     /* Pager page handle */
-  u16 (*xCellSize)(MemPage*,u8*);             /* cellSizePtr method */
-  void (*xParseCell)(MemPage*,u8*,CellInfo*); /* btreeParseCell method */
-};
-
-/*
-** A linked list of the following structures is stored at BtShared.pLock.
-** Locks are added (or upgraded from READ_LOCK to WRITE_LOCK) when a cursor 
-** is opened on the table with root page BtShared.iTable. Locks are removed
-** from this list when a transaction is committed or rolled back, or when
-** a btree handle is closed.
-*/
-struct BtLock {
-  Btree *pBtree;        /* Btree handle holding this lock */
-  Pgno iTable;          /* Root page of table */
-  u8 eLock;             /* READ_LOCK or WRITE_LOCK */
-  BtLock *pNext;        /* Next in BtShared.pLock list */
-};
-
-/* Candidate values for BtLock.eLock */
-#define READ_LOCK     1
-#define WRITE_LOCK    2
-
-/* A Btree handle
-**
-** A database connection contains a pointer to an instance of
-** this object for every database file that it has open.  This structure
-** is opaque to the database connection.  The database connection cannot
-** see the internals of this structure and only deals with pointers to
-** this structure.
-**
-** For some database files, the same underlying database cache might be 
-** shared between multiple connections.  In that case, each connection
-** has it own instance of this object.  But each instance of this object
-** points to the same BtShared object.  The database cache and the
-** schema associated with the database file are all contained within
-** the BtShared object.
-**
-** All fields in this structure are accessed under sqlite3.mutex.
-** The pBt pointer itself may not be changed while there exists cursors 
-** in the referenced BtShared that point back to this Btree since those
-** cursors have to go through this Btree to find their BtShared and
-** they often do so without holding sqlite3.mutex.
-*/
-struct Btree {
-  tdsqlite3 *db;       /* The database connection holding this btree */
-  BtShared *pBt;     /* Sharable content of this btree */
-  u8 inTrans;        /* TRANS_NONE, TRANS_READ or TRANS_WRITE */
-  u8 sharable;       /* True if we can share pBt with another db */
-  u8 locked;         /* True if db currently has pBt locked */
-  u8 hasIncrblobCur; /* True if there are one or more Incrblob cursors */
-  int wantToLock;    /* Number of nested calls to tdsqlite3BtreeEnter() */
-  int nBackup;       /* Number of backup operations reading this btree */
-  u32 iDataVersion;  /* Combines with pBt->pPager->iDataVersion */
-  Btree *pNext;      /* List of other sharable Btrees from the same db */
-  Btree *pPrev;      /* Back pointer of the same list */
-#ifndef SQLITE_OMIT_SHARED_CACHE
-  BtLock lock;       /* Object used to lock page 1 */
-#endif
-};
-
-/*
-** Btree.inTrans may take one of the following values.
-**
-** If the shared-data extension is enabled, there may be multiple users
-** of the Btree structure. At most one of these may open a write transaction,
-** but any number may have active read transactions.
-*/
-#define TRANS_NONE  0
-#define TRANS_READ  1
-#define TRANS_WRITE 2
-
-/*
-** An instance of this object represents a single database file.
-** 
-** A single database file can be in use at the same time by two
-** or more database connections.  When two or more connections are
-** sharing the same database file, each connection has it own
-** private Btree object for the file and each of those Btrees points
-** to this one BtShared object.  BtShared.nRef is the number of
-** connections currently sharing this database file.
-**
-** Fields in this structure are accessed under the BtShared.mutex
-** mutex, except for nRef and pNext which are accessed under the
-** global SQLITE_MUTEX_STATIC_MASTER mutex.  The pPager field
-** may not be modified once it is initially set as long as nRef>0.
-** The pSchema field may be set once under BtShared.mutex and
-** thereafter is unchanged as long as nRef>0.
-**
-** isPending:
-**
-**   If a BtShared client fails to obtain a write-lock on a database
-**   table (because there exists one or more read-locks on the table),
-**   the shared-cache enters 'pending-lock' state and isPending is
-**   set to true.
-**
-**   The shared-cache leaves the 'pending lock' state when either of
-**   the following occur:
-**
-**     1) The current writer (BtShared.pWriter) concludes its transaction, OR
-**     2) The number of locks held by other connections drops to zero.
-**
-**   while in the 'pending-lock' state, no connection may start a new
-**   transaction.
-**
-**   This feature is included to help prevent writer-starvation.
-*/
-struct BtShared {
-  Pager *pPager;        /* The page cache */
-  tdsqlite3 *db;          /* Database connection currently using this Btree */
-  BtCursor *pCursor;    /* A list of all open cursors */
-  MemPage *pPage1;      /* First page of the database */
-  u8 openFlags;         /* Flags to tdsqlite3BtreeOpen() */
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  u8 autoVacuum;        /* True if auto-vacuum is enabled */
-  u8 incrVacuum;        /* True if incr-vacuum is enabled */
-  u8 bDoTruncate;       /* True to truncate db on commit */
-#endif
-  u8 inTransaction;     /* Transaction state */
-  u8 max1bytePayload;   /* Maximum first byte of cell for a 1-byte payload */
-#ifdef SQLITE_HAS_CODEC
-  u8 optimalReserve;    /* Desired amount of reserved space per page */
-#endif
-  u16 btsFlags;         /* Boolean parameters.  See BTS_* macros below */
-  u16 maxLocal;         /* Maximum local payload in non-LEAFDATA tables */
-  u16 minLocal;         /* Minimum local payload in non-LEAFDATA tables */
-  u16 maxLeaf;          /* Maximum local payload in a LEAFDATA table */
-  u16 minLeaf;          /* Minimum local payload in a LEAFDATA table */
-  u32 pageSize;         /* Total number of bytes on a page */
-  u32 usableSize;       /* Number of usable bytes on each page */
-  int nTransaction;     /* Number of open transactions (read + write) */
-  u32 nPage;            /* Number of pages in the database */
-  void *pSchema;        /* Pointer to space allocated by tdsqlite3BtreeSchema() */
-  void (*xFreeSchema)(void*);  /* Destructor for BtShared.pSchema */
-  tdsqlite3_mutex *mutex; /* Non-recursive mutex required to access this object */
-  Bitvec *pHasContent;  /* Set of pages moved to free-list this transaction */
-#ifndef SQLITE_OMIT_SHARED_CACHE
-  int nRef;             /* Number of references to this structure */
-  BtShared *pNext;      /* Next on a list of sharable BtShared structs */
-  BtLock *pLock;        /* List of locks held on this shared-btree struct */
-  Btree *pWriter;       /* Btree with currently open write transaction */
-#endif
-  u8 *pTmpSpace;        /* Temp space sufficient to hold a single cell */
-};
-
-/*
-** Allowed values for BtShared.btsFlags
-*/
-#define BTS_READ_ONLY        0x0001   /* Underlying file is readonly */
-#define BTS_PAGESIZE_FIXED   0x0002   /* Page size can no longer be changed */
-#define BTS_SECURE_DELETE    0x0004   /* PRAGMA secure_delete is enabled */
-#define BTS_OVERWRITE        0x0008   /* Overwrite deleted content with zeros */
-#define BTS_FAST_SECURE      0x000c   /* Combination of the previous two */
-#define BTS_INITIALLY_EMPTY  0x0010   /* Database was empty at trans start */
-#define BTS_NO_WAL           0x0020   /* Do not open write-ahead-log files */
-#define BTS_EXCLUSIVE        0x0040   /* pWriter has an exclusive lock */
-#define BTS_PENDING          0x0080   /* Waiting for read-locks to clear */
-
-/*
-** An instance of the following structure is used to hold information
-** about a cell.  The parseCellPtr() function fills in this structure
-** based on information extract from the raw disk page.
-*/
-struct CellInfo {
-  i64 nKey;      /* The key for INTKEY tables, or nPayload otherwise */
-  u8 *pPayload;  /* Pointer to the start of payload */
-  u32 nPayload;  /* Bytes of payload */
-  u16 nLocal;    /* Amount of payload held locally, not on overflow */
-  u16 nSize;     /* Size of the cell content on the main b-tree page */
-};
-
-/*
-** Maximum depth of an SQLite B-Tree structure. Any B-Tree deeper than
-** this will be declared corrupt. This value is calculated based on a
-** maximum database size of 2^31 pages a minimum fanout of 2 for a
-** root-node and 3 for all other internal nodes.
-**
-** If a tree that appears to be taller than this is encountered, it is
-** assumed that the database is corrupt.
-*/
-#define BTCURSOR_MAX_DEPTH 20
-
-/*
-** A cursor is a pointer to a particular entry within a particular
-** b-tree within a database file.
-**
-** The entry is identified by its MemPage and the index in
-** MemPage.aCell[] of the entry.
-**
-** A single database file can be shared by two more database connections,
-** but cursors cannot be shared.  Each cursor is associated with a
-** particular database connection identified BtCursor.pBtree.db.
-**
-** Fields in this structure are accessed under the BtShared.mutex
-** found at self->pBt->mutex. 
-**
-** skipNext meaning:
-** The meaning of skipNext depends on the value of eState:
-**
-**   eState            Meaning of skipNext
-**   VALID             skipNext is meaningless and is ignored
-**   INVALID           skipNext is meaningless and is ignored
-**   SKIPNEXT          tdsqlite3BtreeNext() is a no-op if skipNext>0 and
-**                     tdsqlite3BtreePrevious() is no-op if skipNext<0.
-**   REQUIRESEEK       restoreCursorPosition() restores the cursor to
-**                     eState=SKIPNEXT if skipNext!=0
-**   FAULT             skipNext holds the cursor fault error code.
-*/
-struct BtCursor {
-  u8 eState;                /* One of the CURSOR_XXX constants (see below) */
-  u8 curFlags;              /* zero or more BTCF_* flags defined below */
-  u8 curPagerFlags;         /* Flags to send to tdsqlite3PagerGet() */
-  u8 hints;                 /* As configured by CursorSetHints() */
-  int skipNext;    /* Prev() is noop if negative. Next() is noop if positive.
-                   ** Error code if eState==CURSOR_FAULT */
-  Btree *pBtree;            /* The Btree to which this cursor belongs */
-  Pgno *aOverflow;          /* Cache of overflow page locations */
-  void *pKey;               /* Saved key that was cursor last known position */
-  /* All fields above are zeroed when the cursor is allocated.  See
-  ** tdsqlite3BtreeCursorZero().  Fields that follow must be manually
-  ** initialized. */
-#define BTCURSOR_FIRST_UNINIT pBt   /* Name of first uninitialized field */
-  BtShared *pBt;            /* The BtShared this cursor points to */
-  BtCursor *pNext;          /* Forms a linked list of all cursors */
-  CellInfo info;            /* A parse of the cell we are pointing at */
-  i64 nKey;                 /* Size of pKey, or last integer key */
-  Pgno pgnoRoot;            /* The root page of this tree */
-  i8 iPage;                 /* Index of current page in apPage */
-  u8 curIntKey;             /* Value of apPage[0]->intKey */
-  u16 ix;                   /* Current index for apPage[iPage] */
-  u16 aiIdx[BTCURSOR_MAX_DEPTH-1];     /* Current index in apPage[i] */
-  struct KeyInfo *pKeyInfo;            /* Arg passed to comparison function */
-  MemPage *pPage;                        /* Current page */
-  MemPage *apPage[BTCURSOR_MAX_DEPTH-1]; /* Stack of parents of current page */
-};
-
-/*
-** Legal values for BtCursor.curFlags
-*/
-#define BTCF_WriteFlag    0x01   /* True if a write cursor */
-#define BTCF_ValidNKey    0x02   /* True if info.nKey is valid */
-#define BTCF_ValidOvfl    0x04   /* True if aOverflow is valid */
-#define BTCF_AtLast       0x08   /* Cursor is pointing ot the last entry */
-#define BTCF_Incrblob     0x10   /* True if an incremental I/O handle */
-#define BTCF_Multiple     0x20   /* Maybe another cursor on the same btree */
-#define BTCF_Pinned       0x40   /* Cursor is busy and cannot be moved */
-
-/*
-** Potential values for BtCursor.eState.
-**
-** CURSOR_INVALID:
-**   Cursor does not point to a valid entry. This can happen (for example) 
-**   because the table is empty or because BtreeCursorFirst() has not been
-**   called.
-**
-** CURSOR_VALID:
-**   Cursor points to a valid entry. getPayload() etc. may be called.
-**
-** CURSOR_SKIPNEXT:
-**   Cursor is valid except that the Cursor.skipNext field is non-zero
-**   indicating that the next tdsqlite3BtreeNext() or tdsqlite3BtreePrevious()
-**   operation should be a no-op.
-**
-** CURSOR_REQUIRESEEK:
-**   The table that this cursor was opened on still exists, but has been 
-**   modified since the cursor was last used. The cursor position is saved
-**   in variables BtCursor.pKey and BtCursor.nKey. When a cursor is in 
-**   this state, restoreCursorPosition() can be called to attempt to
-**   seek the cursor to the saved position.
-**
-** CURSOR_FAULT:
-**   An unrecoverable error (an I/O error or a malloc failure) has occurred
-**   on a different connection that shares the BtShared cache with this
-**   cursor.  The error has left the cache in an inconsistent state.
-**   Do nothing else with this cursor.  Any attempt to use the cursor
-**   should return the error code stored in BtCursor.skipNext
-*/
-#define CURSOR_VALID             0
-#define CURSOR_INVALID           1
-#define CURSOR_SKIPNEXT          2
-#define CURSOR_REQUIRESEEK       3
-#define CURSOR_FAULT             4
-
-/* 
-** The database page the PENDING_BYTE occupies. This page is never used.
-*/
-# define PENDING_BYTE_PAGE(pBt) PAGER_MJ_PGNO(pBt)
-
-/*
-** These macros define the location of the pointer-map entry for a 
-** database page. The first argument to each is the number of usable
-** bytes on each page of the database (often 1024). The second is the
-** page number to look up in the pointer map.
-**
-** PTRMAP_PAGENO returns the database page number of the pointer-map
-** page that stores the required pointer. PTRMAP_PTROFFSET returns
-** the offset of the requested map entry.
-**
-** If the pgno argument passed to PTRMAP_PAGENO is a pointer-map page,
-** then pgno is returned. So (pgno==PTRMAP_PAGENO(pgsz, pgno)) can be
-** used to test if pgno is a pointer-map page. PTRMAP_ISPAGE implements
-** this test.
-*/
-#define PTRMAP_PAGENO(pBt, pgno) ptrmapPageno(pBt, pgno)
-#define PTRMAP_PTROFFSET(pgptrmap, pgno) (5*(pgno-pgptrmap-1))
-#define PTRMAP_ISPAGE(pBt, pgno) (PTRMAP_PAGENO((pBt),(pgno))==(pgno))
-
-/*
-** The pointer map is a lookup table that identifies the parent page for
-** each child page in the database file.  The parent page is the page that
-** contains a pointer to the child.  Every page in the database contains
-** 0 or 1 parent pages.  (In this context 'database page' refers
-** to any page that is not part of the pointer map itself.)  Each pointer map
-** entry consists of a single byte 'type' and a 4 byte parent page number.
-** The PTRMAP_XXX identifiers below are the valid types.
-**
-** The purpose of the pointer map is to facility moving pages from one
-** position in the file to another as part of autovacuum.  When a page
-** is moved, the pointer in its parent must be updated to point to the
-** new location.  The pointer map is used to locate the parent page quickly.
-**
-** PTRMAP_ROOTPAGE: The database page is a root-page. The page-number is not
-**                  used in this case.
-**
-** PTRMAP_FREEPAGE: The database page is an unused (free) page. The page-number 
-**                  is not used in this case.
-**
-** PTRMAP_OVERFLOW1: The database page is the first page in a list of 
-**                   overflow pages. The page number identifies the page that
-**                   contains the cell with a pointer to this overflow page.
-**
-** PTRMAP_OVERFLOW2: The database page is the second or later page in a list of
-**                   overflow pages. The page-number identifies the previous
-**                   page in the overflow page list.
-**
-** PTRMAP_BTREE: The database page is a non-root btree page. The page number
-**               identifies the parent page in the btree.
-*/
-#define PTRMAP_ROOTPAGE 1
-#define PTRMAP_FREEPAGE 2
-#define PTRMAP_OVERFLOW1 3
-#define PTRMAP_OVERFLOW2 4
-#define PTRMAP_BTREE 5
-
-/* A bunch of assert() statements to check the transaction state variables
-** of handle p (type Btree*) are internally consistent.
-*/
-#define btreeIntegrity(p) \
-  assert( p->pBt->inTransaction!=TRANS_NONE || p->pBt->nTransaction==0 ); \
-  assert( p->pBt->inTransaction>=p->inTrans ); 
-
-
-/*
-** The ISAUTOVACUUM macro is used within balance_nonroot() to determine
-** if the database supports auto-vacuum or not. Because it is used
-** within an expression that is an argument to another macro 
-** (sqliteMallocRaw), it is not possible to use conditional compilation.
-** So, this macro is defined instead.
-*/
-#ifndef SQLITE_OMIT_AUTOVACUUM
-#define ISAUTOVACUUM (pBt->autoVacuum)
-#else
-#define ISAUTOVACUUM 0
-#endif
-
-
-/*
-** This structure is passed around through all the sanity checking routines
-** in order to keep track of some global state information.
-**
-** The aRef[] array is allocated so that there is 1 bit for each page in
-** the database. As the integrity-check proceeds, for each page used in
-** the database the corresponding bit is set. This allows integrity-check to 
-** detect pages that are used twice and orphaned pages (both of which 
-** indicate corruption).
-*/
-typedef struct IntegrityCk IntegrityCk;
-struct IntegrityCk {
-  BtShared *pBt;    /* The tree being checked out */
-  Pager *pPager;    /* The associated pager.  Also accessible by pBt->pPager */
-  u8 *aPgRef;       /* 1 bit per page in the db (see above) */
-  Pgno nPage;       /* Number of pages in the database */
-  int mxErr;        /* Stop accumulating errors when this reaches zero */
-  int nErr;         /* Number of messages written to zErrMsg so far */
-  int mallocFailed; /* A memory allocation error has occurred */
-  const char *zPfx; /* Error message prefix */
-  int v1, v2;       /* Values for up to two %d fields in zPfx */
-  StrAccum errMsg;  /* Accumulate the error message text here */
-  u32 *heap;        /* Min-heap used for analyzing cell coverage */
-  tdsqlite3 *db;      /* Database connection running the check */
-};
-
-/*
-** Routines to read or write a two- and four-byte big-endian integer values.
-*/
-#define get2byte(x)   ((x)[0]<<8 | (x)[1])
-#define put2byte(p,v) ((p)[0] = (u8)((v)>>8), (p)[1] = (u8)(v))
-#define get4byte tdsqlite3Get4byte
-#define put4byte tdsqlite3Put4byte
-
-/*
-** get2byteAligned(), unlike get2byte(), requires that its argument point to a
-** two-byte aligned address.  get2bytea() is only used for accessing the
-** cell addresses in a btree header.
-*/
-#if SQLITE_BYTEORDER==4321
-# define get2byteAligned(x)  (*(u16*)(x))
-#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4008000
-# define get2byteAligned(x)  __builtin_bswap16(*(u16*)(x))
-#elif SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
-# define get2byteAligned(x)  _byteswap_ushort(*(u16*)(x))
-#else
-# define get2byteAligned(x)  ((x)[0]<<8 | (x)[1])
-#endif
-
-/************** End of btreeInt.h ********************************************/
-/************** Continuing where we left off in crypto.h *********************/
-/* #include "pager.h" */
-
-/* extensions defined in pager.c */ 
-SQLITE_PRIVATE void *tdsqlite3PagerGetCodec(Pager*);
-SQLITE_PRIVATE void tdsqlite3PagerSetCodec(Pager*, void *(*)(void*,void*,Pgno,int),  void (*)(void*,int,int),  void (*)(void*), void *);
-SQLITE_API int tdsqlite3pager_is_mj_pgno(Pager*, Pgno);
-SQLITE_API void tdsqlite3pager_error(Pager*, int);
-SQLITE_API void tdsqlite3pager_reset(Pager *pPager);
-
-#define FILE_HEADER_SZ 16
-
-#define CIPHER_XSTR(s) CIPHER_STR(s)
-#define CIPHER_STR(s) #s
-
-#ifndef CIPHER_VERSION_NUMBER
-#define CIPHER_VERSION_NUMBER 4.4.0
-#endif
-
-#ifndef CIPHER_VERSION_BUILD
-#define CIPHER_VERSION_BUILD community
-#endif
-
-#define CIPHER_DECRYPT 0
-#define CIPHER_ENCRYPT 1
-
-#define CIPHER_READ_CTX 0
-#define CIPHER_WRITE_CTX 1
-#define CIPHER_READWRITE_CTX 2
-
-#ifndef PBKDF2_ITER
-#define PBKDF2_ITER 256000
-#endif
-
-/* possible flags for cipher_ctx->flags */
-#define CIPHER_FLAG_HMAC          0x01
-#define CIPHER_FLAG_LE_PGNO       0x02
-#define CIPHER_FLAG_BE_PGNO       0x04
-
-#ifndef DEFAULT_CIPHER_FLAGS
-#define DEFAULT_CIPHER_FLAGS CIPHER_FLAG_HMAC | CIPHER_FLAG_LE_PGNO
-#endif
-
-
-/* by default, sqlcipher will use a reduced number of iterations to generate
-   the HMAC key / or transform a raw cipher key 
-   */
-#ifndef FAST_PBKDF2_ITER
-#define FAST_PBKDF2_ITER 2
-#endif
-
-/* this if a fixed random array that will be xor'd with the database salt to ensure that the
-   salt passed to the HMAC key derivation function is not the same as that used to derive
-   the encryption key. This can be overridden at compile time but it will make the resulting
-   binary incompatible with the default builds when using HMAC. A future version of SQLcipher
-   will likely allow this to be defined at runtime via pragma */ 
-#ifndef HMAC_SALT_MASK
-#define HMAC_SALT_MASK 0x3a
-#endif
-
-#ifndef CIPHER_MAX_IV_SZ
-#define CIPHER_MAX_IV_SZ 16
-#endif
-
-#ifndef CIPHER_MAX_KEY_SZ
-#define CIPHER_MAX_KEY_SZ 64
-#endif
-
-#ifdef __ANDROID__
-#include <android/log.h>
-#endif
-
-#ifdef CODEC_DEBUG
-#ifdef __ANDROID__
-#define CODEC_TRACE(...) {__android_log_print(ANDROID_LOG_DEBUG, "sqlcipher", __VA_ARGS__);}
-#else
-#define CODEC_TRACE(...)  {fprintf(stderr, __VA_ARGS__);fflush(stderr);}
-#endif
-#else
-#define CODEC_TRACE(...)
-#endif
-
-#ifdef CODEC_DEBUG_MUTEX
-#define CODEC_TRACE_MUTEX(...)  CODEC_TRACE(__VA_ARGS__)
-#else
-#define CODEC_TRACE_MUTEX(...)
-#endif
-
-#ifdef CODEC_DEBUG_MEMORY
-#define CODEC_TRACE_MEMORY(...)  CODEC_TRACE(__VA_ARGS__)
-#else
-#define CODEC_TRACE_MEMORY(...)
-#endif
-
-#ifdef CODEC_DEBUG_PAGEDATA
-#define CODEC_HEXDUMP(DESC,BUFFER,LEN)  \
-  { \
-    int __pctr; \
-    printf(DESC); \
-    for(__pctr=0; __pctr < LEN; __pctr++) { \
-      if(__pctr % 16 == 0) printf("\n%05x: ",__pctr); \
-      printf("%02x ",((unsigned char*) BUFFER)[__pctr]); \
-    } \
-    printf("\n"); \
-    fflush(stdout); \
-  }
-#else
-#define CODEC_HEXDUMP(DESC,BUFFER,LEN)
-#endif
-
-/* end extensions defined in pager.c */
- 
-/*
-**  Simple shared routines for converting hex char strings to binary data
- */
-static int cipher_hex2int(char c) {
-  return (c>='0' && c<='9') ? (c)-'0' :
-         (c>='A' && c<='F') ? (c)-'A'+10 :
-         (c>='a' && c<='f') ? (c)-'a'+10 : 0;
-}
-
-static void cipher_hex2bin(const unsigned char *hex, int sz, unsigned char *out){
-  int i;
-  for(i = 0; i < sz; i += 2){
-    out[i/2] = (cipher_hex2int(hex[i])<<4) | cipher_hex2int(hex[i+1]);
-  }
-}
-
-static void cipher_bin2hex(const unsigned char* in, int sz, char *out) {
-    int i;
-    for(i=0; i < sz; i++) {
-      tdsqlite3_snprintf(3, out + (i*2), "%02x ", in[i]);
-    } 
-}
-
-static int cipher_isHex(const unsigned char *hex, int sz){
-  int i;
-  for(i = 0; i < sz; i++) {
-    unsigned char c = hex[i];
-    if ((c < '0' || c > '9') &&
-        (c < 'A' || c > 'F') &&
-        (c < 'a' || c > 'f')) {
-      return 0;
-    }
-  }
-  return 1;
-}
-
-/* extensions defined in crypto_impl.c */
-/* the default implementation of SQLCipher uses a cipher_ctx
-   to keep track of read / write state separately. The following
-   struct and associated functions are defined here */
-typedef struct {
-  int derive_key;
-  int pass_sz;
-  unsigned char *key;
-  unsigned char *hmac_key;
-  unsigned char *pass;
-  char *keyspec;
-} cipher_ctx;
-
-
-typedef struct {
-  int store_pass;
-  int kdf_iter;
-  int fast_kdf_iter;
-  int kdf_salt_sz;
-  int key_sz;
-  int iv_sz;
-  int block_sz;
-  int page_sz;
-  int keyspec_sz;
-  int reserve_sz;
-  int hmac_sz;
-  int plaintext_header_sz;
-  int hmac_algorithm;
-  int kdf_algorithm;
-  unsigned int skip_read_hmac;
-  unsigned int need_kdf_salt;
-  unsigned int flags;
-  unsigned char *kdf_salt;
-  unsigned char *hmac_kdf_salt;
-  unsigned char *buffer;
-  Btree *pBt;
-  cipher_ctx *read_ctx;
-  cipher_ctx *write_ctx;
-  sqlcipher_provider *provider;
-  void *provider_ctx;
-} codec_ctx ;
-
-/* crypto.c functions */
-SQLITE_PRIVATE int sqlcipher_codec_pragma(tdsqlite3*, int, Parse*, const char *, const char*);
-SQLITE_PRIVATE int tdsqlite3CodecAttach(tdsqlite3*, int, const void *, int);
-SQLITE_PRIVATE void tdsqlite3CodecGetKey(tdsqlite3*, int, void**, int*);
-SQLITE_PRIVATE void sqlcipher_exportFunc(tdsqlite3_context *, int, tdsqlite3_value **);
-
-/* crypto_impl.c functions */
-
-SQLITE_PRIVATE void sqlcipher_init_memmethods(void);
-
-/* activation and initialization */
-SQLITE_PRIVATE void sqlcipher_activate(void);
-SQLITE_PRIVATE void sqlcipher_deactivate(void);
-
-SQLITE_PRIVATE int sqlcipher_codec_ctx_init(codec_ctx **, Db *, Pager *, const void *, int);
-SQLITE_PRIVATE void sqlcipher_codec_ctx_free(codec_ctx **);
-SQLITE_PRIVATE int sqlcipher_codec_key_derive(codec_ctx *);
-SQLITE_PRIVATE int sqlcipher_codec_key_copy(codec_ctx *, int);
-
-/* page cipher implementation */
-SQLITE_PRIVATE int sqlcipher_page_cipher(codec_ctx *, int, Pgno, int, int, unsigned char *, unsigned char *);
-
-/* context setters & getters */
-SQLITE_PRIVATE void sqlcipher_codec_ctx_set_error(codec_ctx *, int);
-
-SQLITE_PRIVATE void sqlcipher_codec_get_pass(codec_ctx *, void **, int *);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_pass(codec_ctx *, const void *, int, int);
-SQLITE_PRIVATE void sqlcipher_codec_get_keyspec(codec_ctx *, void **zKey, int *nKey);
-
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_pagesize(codec_ctx *, int);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_pagesize(codec_ctx *);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_reservesize(codec_ctx *);
-
-SQLITE_PRIVATE void sqlcipher_set_default_pagesize(int page_size);
-SQLITE_PRIVATE int sqlcipher_get_default_pagesize(void);
-
-SQLITE_PRIVATE void sqlcipher_set_default_kdf_iter(int iter);
-SQLITE_PRIVATE int sqlcipher_get_default_kdf_iter(void);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_kdf_iter(codec_ctx *, int);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_kdf_iter(codec_ctx *ctx);
-
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_kdf_salt(codec_ctx *ctx, unsigned char *salt, int sz);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_kdf_salt(codec_ctx *ctx, void **salt);
-
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_fast_kdf_iter(codec_ctx *, int);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_fast_kdf_iter(codec_ctx *);
-
-SQLITE_PRIVATE const char* sqlcipher_codec_ctx_get_cipher(codec_ctx *ctx);
-
-SQLITE_PRIVATE void* sqlcipher_codec_ctx_get_data(codec_ctx *);
-
-SQLITE_PRIVATE void sqlcipher_set_default_use_hmac(int use);
-SQLITE_PRIVATE int sqlcipher_get_default_use_hmac(void);
-
-SQLITE_PRIVATE void sqlcipher_set_hmac_salt_mask(unsigned char mask);
-SQLITE_PRIVATE unsigned char sqlcipher_get_hmac_salt_mask(void);
-
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_use_hmac(codec_ctx *ctx, int use);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_use_hmac(codec_ctx *ctx);
-
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_flag(codec_ctx *ctx, unsigned int flag);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_unset_flag(codec_ctx *ctx, unsigned int flag);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_flag(codec_ctx *ctx, unsigned int flag);
-
-SQLITE_PRIVATE const char* sqlcipher_codec_get_cipher_provider(codec_ctx *ctx);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_migrate(codec_ctx *ctx);
-SQLITE_PRIVATE int sqlcipher_codec_add_random(codec_ctx *ctx, const char *data, int random_sz);
-SQLITE_PRIVATE int sqlcipher_cipher_profile(tdsqlite3 *db, const char *destination);
-SQLITE_PRIVATE int sqlcipher_codec_get_store_pass(codec_ctx *ctx);
-SQLITE_PRIVATE void sqlcipher_codec_get_pass(codec_ctx *ctx, void **zKey, int *nKey);
-SQLITE_PRIVATE void sqlcipher_codec_set_store_pass(codec_ctx *ctx, int value);
-SQLITE_PRIVATE int sqlcipher_codec_fips_status(codec_ctx *ctx);
-SQLITE_PRIVATE const char* sqlcipher_codec_get_provider_version(codec_ctx *ctx);
-
-SQLITE_PRIVATE int sqlcipher_set_default_plaintext_header_size(int size);
-SQLITE_PRIVATE int sqlcipher_get_default_plaintext_header_size(void);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_plaintext_header_size(codec_ctx *ctx, int size);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_plaintext_header_size(codec_ctx *ctx);
-
-SQLITE_PRIVATE int sqlcipher_set_default_hmac_algorithm(int algorithm);
-SQLITE_PRIVATE int sqlcipher_get_default_hmac_algorithm(void);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_hmac_algorithm(codec_ctx *ctx, int algorithm);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_hmac_algorithm(codec_ctx *ctx);
-
-SQLITE_PRIVATE int sqlcipher_set_default_kdf_algorithm(int algorithm);
-SQLITE_PRIVATE int sqlcipher_get_default_kdf_algorithm(void);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_set_kdf_algorithm(codec_ctx *ctx, int algorithm);
-SQLITE_PRIVATE int sqlcipher_codec_ctx_get_kdf_algorithm(codec_ctx *ctx);
-
-SQLITE_PRIVATE void sqlcipher_set_mem_security(int);
-SQLITE_PRIVATE int sqlcipher_get_mem_security(void);
-
-SQLITE_PRIVATE int sqlcipher_find_db_index(tdsqlite3 *db, const char *zDb);
-
-SQLITE_PRIVATE int sqlcipher_codec_ctx_integrity_check(codec_ctx *, Parse *, char *);
-
-#endif
-#endif
-/* END SQLCIPHER */
-
-/************** End of crypto.h **********************************************/
-/************** Continuing where we left off in crypto.c *********************/
-
-#ifdef SQLCIPHER_EXT
-#include "sqlcipher_ext.h"
-#endif
-
-/* Generate code to return a string value */
-static void codec_vdbe_return_string(Parse *pParse, const char *zLabel, const char *value, int value_type){
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  tdsqlite3VdbeSetNumCols(v, 1);
-  tdsqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLabel, SQLITE_STATIC);
-  tdsqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, value, value_type);
-  tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-}
-
-static int codec_set_btree_to_codec_pagesize(tdsqlite3 *db, Db *pDb, codec_ctx *ctx) {
-  int rc, page_sz, reserve_sz; 
-
-  page_sz = sqlcipher_codec_ctx_get_pagesize(ctx);
-  reserve_sz = sqlcipher_codec_ctx_get_reservesize(ctx);
-
-  CODEC_TRACE("codec_set_btree_to_codec_pagesize: tdsqlite3BtreeSetPageSize() size=%d reserve=%d\n", page_sz, reserve_sz);
-
-  CODEC_TRACE_MUTEX("codec_set_btree_to_codec_pagesize: entering database mutex %p\n", db->mutex);
-  tdsqlite3_mutex_enter(db->mutex);
-  CODEC_TRACE_MUTEX("codec_set_btree_to_codec_pagesize: entered database mutex %p\n", db->mutex);
-  db->nextPagesize = page_sz; 
-
-  /* before forcing the page size we need to unset the BTS_PAGESIZE_FIXED flag, else  
-     sqliteBtreeSetPageSize will block the change  */
-  pDb->pBt->pBt->btsFlags &= ~BTS_PAGESIZE_FIXED;
-  rc = tdsqlite3BtreeSetPageSize(pDb->pBt, page_sz, reserve_sz, 0);
-
-  CODEC_TRACE("codec_set_btree_to_codec_pagesize: tdsqlite3BtreeSetPageSize returned %d\n", rc);
-
-  CODEC_TRACE_MUTEX("codec_set_btree_to_codec_pagesize: leaving database mutex %p\n", db->mutex);
-  tdsqlite3_mutex_leave(db->mutex);
-  CODEC_TRACE_MUTEX("codec_set_btree_to_codec_pagesize: left database mutex %p\n", db->mutex);
-
-  return rc;
-}
-
-static int codec_set_pass_key(tdsqlite3* db, int nDb, const void *zKey, int nKey, int for_ctx) {
-  struct Db *pDb = &db->aDb[nDb];
-  CODEC_TRACE("codec_set_pass_key: entered db=%p nDb=%d zKey=%s nKey=%d for_ctx=%d\n", db, nDb, (char *)zKey, nKey, for_ctx);
-  if(pDb->pBt) {
-    codec_ctx *ctx = (codec_ctx*) tdsqlite3PagerGetCodec(pDb->pBt->pBt->pPager);
-
-    if(ctx) return sqlcipher_codec_ctx_set_pass(ctx, zKey, nKey, for_ctx);
-  }
-  return SQLITE_ERROR;
-} 
-
-int sqlcipher_codec_pragma(tdsqlite3* db, int iDb, Parse *pParse, const char *zLeft, const char *zRight) {
-  struct Db *pDb = &db->aDb[iDb];
-  codec_ctx *ctx = NULL;
-  int rc;
-
-  if(pDb->pBt) {
-    ctx = (codec_ctx*) tdsqlite3PagerGetCodec(pDb->pBt->pBt->pPager);
-  }
-
-  CODEC_TRACE("sqlcipher_codec_pragma: entered db=%p iDb=%d pParse=%p zLeft=%s zRight=%s ctx=%p\n", db, iDb, pParse, zLeft, zRight, ctx);
-  
-#ifdef SQLCIPHER_EXT
-  if( tdsqlite3StrICmp(zLeft, "cipher_license")==0 && zRight ){
-    char *license_result = tdsqlite3_mprintf("%d", sqlcipher_license_key(zRight));
-    codec_vdbe_return_string(pParse, "cipher_license", license_result, P4_DYNAMIC);
-  } else
-    if( tdsqlite3StrICmp(zLeft, "cipher_license")==0 && !zRight ){
-      if(ctx) {
-        char *license_result = tdsqlite3_mprintf("%d", ctx
-                                               ? sqlcipher_license_key_status(ctx->provider)
-                                               : SQLITE_ERROR);
-        codec_vdbe_return_string(pParse, "cipher_license", license_result, P4_DYNAMIC);
-      }
-  } else
-#endif
-  if( tdsqlite3StrICmp(zLeft, "cipher_fips_status")== 0 && !zRight ){
-    if(ctx) {
-      char *fips_mode_status = tdsqlite3_mprintf("%d", sqlcipher_codec_fips_status(ctx));
-      codec_vdbe_return_string(pParse, "cipher_fips_status", fips_mode_status, P4_DYNAMIC);
-    }
-  } else
-  if( tdsqlite3StrICmp(zLeft, "cipher_store_pass")==0 && zRight ) {
-    if(ctx) {
-      sqlcipher_codec_set_store_pass(ctx, tdsqlite3GetBoolean(zRight, 1));
-    }
-  } else
-  if( tdsqlite3StrICmp(zLeft, "cipher_store_pass")==0 && !zRight ) {
-    if(ctx){
-      char *store_pass_value = tdsqlite3_mprintf("%d", sqlcipher_codec_get_store_pass(ctx));
-      codec_vdbe_return_string(pParse, "cipher_store_pass", store_pass_value, P4_DYNAMIC);
-    }
-  }
-  if( tdsqlite3StrICmp(zLeft, "cipher_profile")== 0 && zRight ){
-      char *profile_status = tdsqlite3_mprintf("%d", sqlcipher_cipher_profile(db, zRight));
-      codec_vdbe_return_string(pParse, "cipher_profile", profile_status, P4_DYNAMIC);
-  } else
-  if( tdsqlite3StrICmp(zLeft, "cipher_add_random")==0 && zRight ){
-    if(ctx) {
-      char *add_random_status = tdsqlite3_mprintf("%d", sqlcipher_codec_add_random(ctx, zRight, tdsqlite3Strlen30(zRight)));
-      codec_vdbe_return_string(pParse, "cipher_add_random", add_random_status, P4_DYNAMIC);
-    }
-  } else
-  if( tdsqlite3StrICmp(zLeft, "cipher_migrate")==0 && !zRight ){
-    if(ctx){
-      char *migrate_status = tdsqlite3_mprintf("%d", sqlcipher_codec_ctx_migrate(ctx));
-      codec_vdbe_return_string(pParse, "cipher_migrate", migrate_status, P4_DYNAMIC);
-    }
-  } else
-  if( tdsqlite3StrICmp(zLeft, "cipher_provider")==0 && !zRight ){
-    if(ctx) { codec_vdbe_return_string(pParse, "cipher_provider",
-                                              sqlcipher_codec_get_cipher_provider(ctx), P4_TRANSIENT);
-    }
-  } else
-  if( tdsqlite3StrICmp(zLeft, "cipher_provider_version")==0 && !zRight){
-    if(ctx) { codec_vdbe_return_string(pParse, "cipher_provider_version",
-                                              sqlcipher_codec_get_provider_version(ctx), P4_TRANSIENT);
-    }
-  } else
-  if( tdsqlite3StrICmp(zLeft, "cipher_version")==0 && !zRight ){
-    codec_vdbe_return_string(pParse, "cipher_version", sqlcipher_version(), P4_DYNAMIC);
-  }else
-  if( tdsqlite3StrICmp(zLeft, "cipher")==0 ){
-    if(ctx) {
-      if( zRight ) {
-        const char* message = "PRAGMA cipher is no longer supported.";
-        codec_vdbe_return_string(pParse, "cipher", message, P4_TRANSIENT);
-        tdsqlite3_log(SQLITE_WARNING, message);
-      }else {
-        codec_vdbe_return_string(pParse, "cipher", sqlcipher_codec_ctx_get_cipher(ctx), P4_TRANSIENT); 
-      }
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft, "rekey_cipher")==0 && zRight ){
-    const char* message = "PRAGMA rekey_cipher is no longer supported.";
-    codec_vdbe_return_string(pParse, "rekey_cipher", message, P4_TRANSIENT);
-    tdsqlite3_log(SQLITE_WARNING, message);
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_default_kdf_iter")==0 ){
-    if( zRight ) {
-      sqlcipher_set_default_kdf_iter(atoi(zRight)); /* change default KDF iterations */
-    } else {
-      char *kdf_iter = tdsqlite3_mprintf("%d", sqlcipher_get_default_kdf_iter());
-      codec_vdbe_return_string(pParse, "cipher_default_kdf_iter", kdf_iter, P4_DYNAMIC);
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft, "kdf_iter")==0 ){
-    if(ctx) {
-      if( zRight ) {
-        sqlcipher_codec_ctx_set_kdf_iter(ctx, atoi(zRight)); /* change of RW PBKDF2 iteration */
-      } else {
-        char *kdf_iter = tdsqlite3_mprintf("%d", sqlcipher_codec_ctx_get_kdf_iter(ctx));
-        codec_vdbe_return_string(pParse, "kdf_iter", kdf_iter, P4_DYNAMIC);
-      }
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft, "fast_kdf_iter")==0){
-    if(ctx) {
-      if( zRight ) {
-        char *deprecation = "PRAGMA fast_kdf_iter is deprecated, please remove from use";
-        sqlcipher_codec_ctx_set_fast_kdf_iter(ctx, atoi(zRight)); /* change of RW PBKDF2 iteration */
-        codec_vdbe_return_string(pParse, "fast_kdf_iter", deprecation, P4_TRANSIENT);
-        tdsqlite3_log(SQLITE_WARNING, deprecation);
-      } else {
-        char *fast_kdf_iter = tdsqlite3_mprintf("%d", sqlcipher_codec_ctx_get_fast_kdf_iter(ctx));
-        codec_vdbe_return_string(pParse, "fast_kdf_iter", fast_kdf_iter, P4_DYNAMIC);
-      }
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft, "rekey_kdf_iter")==0 && zRight ){
-    const char* message = "PRAGMA rekey_kdf_iter is no longer supported.";
-    codec_vdbe_return_string(pParse, "rekey_kdf_iter", message, P4_TRANSIENT);
-    tdsqlite3_log(SQLITE_WARNING, message);
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_page_size")==0 ){
-    if(ctx) {
-      if( zRight ) {
-        int size = atoi(zRight);
-        rc = sqlcipher_codec_ctx_set_pagesize(ctx, size);
-        if(rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, rc);
-        rc = codec_set_btree_to_codec_pagesize(db, pDb, ctx);
-        if(rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, rc);
-      } else {
-        char * page_size = tdsqlite3_mprintf("%d", sqlcipher_codec_ctx_get_pagesize(ctx));
-        codec_vdbe_return_string(pParse, "cipher_page_size", page_size, P4_DYNAMIC);
-      }
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_default_page_size")==0 ){
-    if( zRight ) {
-      sqlcipher_set_default_pagesize(atoi(zRight));
-    } else {
-      char *default_page_size = tdsqlite3_mprintf("%d", sqlcipher_get_default_pagesize());
-      codec_vdbe_return_string(pParse, "cipher_default_page_size", default_page_size, P4_DYNAMIC);
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_default_use_hmac")==0 ){
-    if( zRight ) {
-      sqlcipher_set_default_use_hmac(tdsqlite3GetBoolean(zRight,1));
-    } else {
-      char *default_use_hmac = tdsqlite3_mprintf("%d", sqlcipher_get_default_use_hmac());
-      codec_vdbe_return_string(pParse, "cipher_default_use_hmac", default_use_hmac, P4_DYNAMIC);
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_use_hmac")==0 ){
-    if(ctx) {
-      if( zRight ) {
-        rc = sqlcipher_codec_ctx_set_use_hmac(ctx, tdsqlite3GetBoolean(zRight,1));
-        if(rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, rc);
-        /* since the use of hmac has changed, the page size may also change */
-        rc = codec_set_btree_to_codec_pagesize(db, pDb, ctx);
-        if(rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, rc);
-      } else {
-        char *hmac_flag = tdsqlite3_mprintf("%d", sqlcipher_codec_ctx_get_use_hmac(ctx));
-        codec_vdbe_return_string(pParse, "cipher_use_hmac", hmac_flag, P4_DYNAMIC);
-      }
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_hmac_pgno")==0 ){
-    if(ctx) {
-      if(zRight) {
-        char *deprecation = "PRAGMA cipher_hmac_pgno is deprecated, please remove from use";
-        /* clear both pgno endian flags */
-        if(tdsqlite3StrICmp(zRight, "le") == 0) {
-          sqlcipher_codec_ctx_unset_flag(ctx, CIPHER_FLAG_BE_PGNO);
-          sqlcipher_codec_ctx_set_flag(ctx, CIPHER_FLAG_LE_PGNO);
-        } else if(tdsqlite3StrICmp(zRight, "be") == 0) {
-          sqlcipher_codec_ctx_unset_flag(ctx, CIPHER_FLAG_LE_PGNO);
-          sqlcipher_codec_ctx_set_flag(ctx, CIPHER_FLAG_BE_PGNO);
-        } else if(tdsqlite3StrICmp(zRight, "native") == 0) {
-          sqlcipher_codec_ctx_unset_flag(ctx, CIPHER_FLAG_LE_PGNO);
-          sqlcipher_codec_ctx_unset_flag(ctx, CIPHER_FLAG_BE_PGNO);
-        }
-        codec_vdbe_return_string(pParse, "cipher_hmac_pgno", deprecation, P4_TRANSIENT);
-        tdsqlite3_log(SQLITE_WARNING, deprecation);
- 
-      } else {
-        if(sqlcipher_codec_ctx_get_flag(ctx, CIPHER_FLAG_LE_PGNO)) {
-          codec_vdbe_return_string(pParse, "cipher_hmac_pgno", "le", P4_TRANSIENT);
-        } else if(sqlcipher_codec_ctx_get_flag(ctx, CIPHER_FLAG_BE_PGNO)) {
-          codec_vdbe_return_string(pParse, "cipher_hmac_pgno", "be", P4_TRANSIENT);
-        } else {
-          codec_vdbe_return_string(pParse, "cipher_hmac_pgno", "native", P4_TRANSIENT);
-        }
-      }
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_hmac_salt_mask")==0 ){
-    if(ctx) {
-      if(zRight) {
-        char *deprecation = "PRAGMA cipher_hmac_salt_mask is deprecated, please remove from use";
-        if (tdsqlite3StrNICmp(zRight ,"x'", 2) == 0 && tdsqlite3Strlen30(zRight) == 5) {
-          unsigned char mask = 0;
-          const unsigned char *hex = (const unsigned char *)zRight+2;
-          cipher_hex2bin(hex,2,&mask);
-          sqlcipher_set_hmac_salt_mask(mask);
-        }
-        codec_vdbe_return_string(pParse, "cipher_hmac_salt_mask", deprecation, P4_TRANSIENT);
-        tdsqlite3_log(SQLITE_WARNING, deprecation);
-      } else {
-        char *hmac_salt_mask = tdsqlite3_mprintf("%02x", sqlcipher_get_hmac_salt_mask());
-        codec_vdbe_return_string(pParse, "cipher_hmac_salt_mask", hmac_salt_mask, P4_DYNAMIC);
-      }
-    }
-  }else 
-  if( tdsqlite3StrICmp(zLeft,"cipher_plaintext_header_size")==0 ){
-    if(ctx) {
-      if( zRight ) {
-        int size = atoi(zRight);
-        if((rc = sqlcipher_codec_ctx_set_plaintext_header_size(ctx, size)) != SQLITE_OK)
-          sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR); 
-      } else {
-        char *size = tdsqlite3_mprintf("%d", sqlcipher_codec_ctx_get_plaintext_header_size(ctx));
-        codec_vdbe_return_string(pParse, "cipher_plaintext_header_size", size, P4_DYNAMIC);
-      }
-    }
-  }else 
-  if( tdsqlite3StrICmp(zLeft,"cipher_default_plaintext_header_size")==0 ){
-    if( zRight ) {
-      sqlcipher_set_default_plaintext_header_size(atoi(zRight));
-    } else {
-      char *size = tdsqlite3_mprintf("%d", sqlcipher_get_default_plaintext_header_size());
-      codec_vdbe_return_string(pParse, "cipher_default_plaintext_header_size", size, P4_DYNAMIC);
-      tdsqlite3_free(size);
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_salt")==0 ){
-    if(ctx) {
-      if(zRight) {
-        if (tdsqlite3StrNICmp(zRight ,"x'", 2) == 0 && tdsqlite3Strlen30(zRight) == (FILE_HEADER_SZ*2)+3) {
-          unsigned char *salt = (unsigned char*) tdsqlite3_malloc(FILE_HEADER_SZ);
-          const unsigned char *hex = (const unsigned char *)zRight+2;
-          cipher_hex2bin(hex,FILE_HEADER_SZ*2,salt);
-          sqlcipher_codec_ctx_set_kdf_salt(ctx, salt, FILE_HEADER_SZ);
-          tdsqlite3_free(salt);
-        }
-      } else {
-        void *salt;
-        char *hexsalt = (char*) tdsqlite3_malloc((FILE_HEADER_SZ*2)+1);
-        if((rc = sqlcipher_codec_ctx_get_kdf_salt(ctx, &salt)) == SQLITE_OK) {
-          cipher_bin2hex(salt, FILE_HEADER_SZ, hexsalt);
-          codec_vdbe_return_string(pParse, "cipher_salt", hexsalt, P4_DYNAMIC);
-        } else {
-          tdsqlite3_free(hexsalt);
-          sqlcipher_codec_ctx_set_error(ctx, rc);
-        }
-      }
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_hmac_algorithm")==0 ){
-    if(ctx) {
-      if(zRight) {
-        rc = SQLITE_ERROR;
-        if(tdsqlite3StrICmp(zRight, SQLCIPHER_HMAC_SHA1_LABEL) == 0) {
-          rc = sqlcipher_codec_ctx_set_hmac_algorithm(ctx, SQLCIPHER_HMAC_SHA1);
-        } else if(tdsqlite3StrICmp(zRight, SQLCIPHER_HMAC_SHA256_LABEL) == 0) {
-          rc = sqlcipher_codec_ctx_set_hmac_algorithm(ctx, SQLCIPHER_HMAC_SHA256);
-        } else if(tdsqlite3StrICmp(zRight, SQLCIPHER_HMAC_SHA512_LABEL) == 0) {
-          rc = sqlcipher_codec_ctx_set_hmac_algorithm(ctx, SQLCIPHER_HMAC_SHA512);
-        }
-        if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-        rc = codec_set_btree_to_codec_pagesize(db, pDb, ctx);
-        if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-      } else {
-        int algorithm = sqlcipher_codec_ctx_get_hmac_algorithm(ctx);
-        if(algorithm == SQLCIPHER_HMAC_SHA1) {
-          codec_vdbe_return_string(pParse, "cipher_hmac_algorithm", SQLCIPHER_HMAC_SHA1_LABEL, P4_TRANSIENT);
-        } else if(algorithm == SQLCIPHER_HMAC_SHA256) {
-          codec_vdbe_return_string(pParse, "cipher_hmac_algorithm", SQLCIPHER_HMAC_SHA256_LABEL, P4_TRANSIENT);
-        } else if(algorithm == SQLCIPHER_HMAC_SHA512) {
-          codec_vdbe_return_string(pParse, "cipher_hmac_algorithm", SQLCIPHER_HMAC_SHA512_LABEL, P4_TRANSIENT);
-        }
-      }
-    }
-  }else 
-  if( tdsqlite3StrICmp(zLeft,"cipher_default_hmac_algorithm")==0 ){
-    if(zRight) {
-      rc = SQLITE_ERROR;
-      if(tdsqlite3StrICmp(zRight, SQLCIPHER_HMAC_SHA1_LABEL) == 0) {
-        rc = sqlcipher_set_default_hmac_algorithm(SQLCIPHER_HMAC_SHA1);
-      } else if(tdsqlite3StrICmp(zRight, SQLCIPHER_HMAC_SHA256_LABEL) == 0) {
-        rc = sqlcipher_set_default_hmac_algorithm(SQLCIPHER_HMAC_SHA256);
-      } else if(tdsqlite3StrICmp(zRight, SQLCIPHER_HMAC_SHA512_LABEL) == 0) {
-        rc = sqlcipher_set_default_hmac_algorithm(SQLCIPHER_HMAC_SHA512);
-      }
-    } else {
-      int algorithm = sqlcipher_get_default_hmac_algorithm();
-      if(algorithm == SQLCIPHER_HMAC_SHA1) {
-        codec_vdbe_return_string(pParse, "cipher_default_hmac_algorithm", SQLCIPHER_HMAC_SHA1_LABEL, P4_TRANSIENT);
-      } else if(algorithm == SQLCIPHER_HMAC_SHA256) {
-        codec_vdbe_return_string(pParse, "cipher_default_hmac_algorithm", SQLCIPHER_HMAC_SHA256_LABEL, P4_TRANSIENT);
-      } else if(algorithm == SQLCIPHER_HMAC_SHA512) {
-        codec_vdbe_return_string(pParse, "cipher_default_hmac_algorithm", SQLCIPHER_HMAC_SHA512_LABEL, P4_TRANSIENT);
-      }
-    }
-  }else 
-  if( tdsqlite3StrICmp(zLeft,"cipher_kdf_algorithm")==0 ){
-    if(ctx) {
-      if(zRight) {
-        rc = SQLITE_ERROR;
-        if(tdsqlite3StrICmp(zRight, SQLCIPHER_PBKDF2_HMAC_SHA1_LABEL) == 0) {
-          rc = sqlcipher_codec_ctx_set_kdf_algorithm(ctx, SQLCIPHER_PBKDF2_HMAC_SHA1);
-        } else if(tdsqlite3StrICmp(zRight, SQLCIPHER_PBKDF2_HMAC_SHA256_LABEL) == 0) {
-          rc = sqlcipher_codec_ctx_set_kdf_algorithm(ctx, SQLCIPHER_PBKDF2_HMAC_SHA256);
-        } else if(tdsqlite3StrICmp(zRight, SQLCIPHER_PBKDF2_HMAC_SHA512_LABEL) == 0) {
-          rc = sqlcipher_codec_ctx_set_kdf_algorithm(ctx, SQLCIPHER_PBKDF2_HMAC_SHA512);
-        }
-        if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-      } else {
-        int algorithm = sqlcipher_codec_ctx_get_kdf_algorithm(ctx);
-        if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA1) {
-          codec_vdbe_return_string(pParse, "cipher_kdf_algorithm", SQLCIPHER_PBKDF2_HMAC_SHA1_LABEL, P4_TRANSIENT);
-        } else if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA256) {
-          codec_vdbe_return_string(pParse, "cipher_kdf_algorithm", SQLCIPHER_PBKDF2_HMAC_SHA256_LABEL, P4_TRANSIENT);
-        } else if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA512) {
-          codec_vdbe_return_string(pParse, "cipher_kdf_algorithm", SQLCIPHER_PBKDF2_HMAC_SHA512_LABEL, P4_TRANSIENT);
-        }
-      }
-    }
-  }else 
-  if( tdsqlite3StrICmp(zLeft,"cipher_default_kdf_algorithm")==0 ){
-    if(zRight) {
-      rc = SQLITE_ERROR;
-      if(tdsqlite3StrICmp(zRight, SQLCIPHER_PBKDF2_HMAC_SHA1_LABEL) == 0) {
-        rc = sqlcipher_set_default_kdf_algorithm(SQLCIPHER_PBKDF2_HMAC_SHA1);
-      } else if(tdsqlite3StrICmp(zRight, SQLCIPHER_PBKDF2_HMAC_SHA256_LABEL) == 0) {
-        rc = sqlcipher_set_default_kdf_algorithm(SQLCIPHER_PBKDF2_HMAC_SHA256);
-      } else if(tdsqlite3StrICmp(zRight, SQLCIPHER_PBKDF2_HMAC_SHA512_LABEL) == 0) {
-        rc = sqlcipher_set_default_kdf_algorithm(SQLCIPHER_PBKDF2_HMAC_SHA512);
-      }
-    } else {
-      int algorithm = sqlcipher_get_default_kdf_algorithm();
-      if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA1) {
-        codec_vdbe_return_string(pParse, "cipher_default_kdf_algorithm", SQLCIPHER_PBKDF2_HMAC_SHA1_LABEL, P4_TRANSIENT);
-      } else if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA256) {
-        codec_vdbe_return_string(pParse, "cipher_default_kdf_algorithm", SQLCIPHER_PBKDF2_HMAC_SHA256_LABEL, P4_TRANSIENT);
-      } else if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA512) {
-        codec_vdbe_return_string(pParse, "cipher_default_kdf_algorithm", SQLCIPHER_PBKDF2_HMAC_SHA512_LABEL, P4_TRANSIENT);
-      }
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_compatibility")==0 ){
-    if(ctx) {
-      if(zRight) {
-        int version = atoi(zRight); 
-
-        switch(version) {
-          case 1: 
-            rc = sqlcipher_codec_ctx_set_pagesize(ctx, 1024);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_hmac_algorithm(ctx, SQLCIPHER_HMAC_SHA1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_kdf_algorithm(ctx, SQLCIPHER_PBKDF2_HMAC_SHA1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_kdf_iter(ctx, 4000); 
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_use_hmac(ctx, 0);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            break;
-
-          case 2: 
-            rc = sqlcipher_codec_ctx_set_pagesize(ctx, 1024);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_hmac_algorithm(ctx, SQLCIPHER_HMAC_SHA1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_kdf_algorithm(ctx, SQLCIPHER_PBKDF2_HMAC_SHA1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_kdf_iter(ctx, 4000); 
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_use_hmac(ctx, 1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            break;
-
-          case 3:
-            rc = sqlcipher_codec_ctx_set_pagesize(ctx, 1024);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_hmac_algorithm(ctx, SQLCIPHER_HMAC_SHA1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_kdf_algorithm(ctx, SQLCIPHER_PBKDF2_HMAC_SHA1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_kdf_iter(ctx, 64000); 
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_use_hmac(ctx, 1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            break;
-
-          default:
-            rc = sqlcipher_codec_ctx_set_pagesize(ctx, 4096);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_hmac_algorithm(ctx, SQLCIPHER_HMAC_SHA512);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_kdf_algorithm(ctx, SQLCIPHER_PBKDF2_HMAC_SHA512);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_kdf_iter(ctx, 256000); 
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            rc = sqlcipher_codec_ctx_set_use_hmac(ctx, 1);
-            if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-            break;
-        }  
-
-        rc = codec_set_btree_to_codec_pagesize(db, pDb, ctx);
-        if (rc != SQLITE_OK) sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR);
-      } 
-    }
-  }else 
-  if( tdsqlite3StrICmp(zLeft,"cipher_default_compatibility")==0 ){
-    if(zRight) {
-      int version = atoi(zRight); 
-      switch(version) {
-        case 1: 
-          sqlcipher_set_default_pagesize(1024);
-          sqlcipher_set_default_hmac_algorithm(SQLCIPHER_HMAC_SHA1);
-          sqlcipher_set_default_kdf_algorithm(SQLCIPHER_PBKDF2_HMAC_SHA1);
-          sqlcipher_set_default_kdf_iter(4000);
-          sqlcipher_set_default_use_hmac(0);
-          break;
-
-        case 2: 
-          sqlcipher_set_default_pagesize(1024);
-          sqlcipher_set_default_hmac_algorithm(SQLCIPHER_HMAC_SHA1);
-          sqlcipher_set_default_kdf_algorithm(SQLCIPHER_PBKDF2_HMAC_SHA1);
-          sqlcipher_set_default_kdf_iter(4000);
-          sqlcipher_set_default_use_hmac(1);
-          break;
-
-        case 3:
-          sqlcipher_set_default_pagesize(1024);
-          sqlcipher_set_default_hmac_algorithm(SQLCIPHER_HMAC_SHA1);
-          sqlcipher_set_default_kdf_algorithm(SQLCIPHER_PBKDF2_HMAC_SHA1);
-          sqlcipher_set_default_kdf_iter(64000);
-          sqlcipher_set_default_use_hmac(1);
-          break;
-
-        default:
-          sqlcipher_set_default_pagesize(4096);
-          sqlcipher_set_default_hmac_algorithm(SQLCIPHER_HMAC_SHA512);
-          sqlcipher_set_default_kdf_algorithm(SQLCIPHER_PBKDF2_HMAC_SHA512);
-          sqlcipher_set_default_kdf_iter(256000);
-          sqlcipher_set_default_use_hmac(1);
-          break;
-      }  
-    } 
-  }else 
-  if( tdsqlite3StrICmp(zLeft,"cipher_memory_security")==0 ){
-    if( zRight ) {
-      sqlcipher_set_mem_security(tdsqlite3GetBoolean(zRight,1));
-    } else {
-      char *on = tdsqlite3_mprintf("%d", sqlcipher_get_mem_security());
-      codec_vdbe_return_string(pParse, "cipher_memory_security", on, P4_DYNAMIC);
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_settings")==0 ){
-    if(ctx) {
-      int algorithm;
-      char *pragma;
-
-      pragma = tdsqlite3_mprintf("PRAGMA kdf_iter = %d;", sqlcipher_codec_ctx_get_kdf_iter(ctx));
-      codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_page_size = %d;", sqlcipher_codec_ctx_get_pagesize(ctx));
-      codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_use_hmac = %d;", sqlcipher_codec_ctx_get_use_hmac(ctx));
-      codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_plaintext_header_size = %d;", sqlcipher_codec_ctx_get_plaintext_header_size(ctx));
-      codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-      algorithm = sqlcipher_codec_ctx_get_hmac_algorithm(ctx);
-      pragma = NULL;
-      if(algorithm == SQLCIPHER_HMAC_SHA1) {
-        pragma = tdsqlite3_mprintf("PRAGMA cipher_hmac_algorithm = %s;", SQLCIPHER_HMAC_SHA1_LABEL);
-      } else if(algorithm == SQLCIPHER_HMAC_SHA256) {
-        pragma = tdsqlite3_mprintf("PRAGMA cipher_hmac_algorithm = %s;", SQLCIPHER_HMAC_SHA256_LABEL);
-      } else if(algorithm == SQLCIPHER_HMAC_SHA512) {
-        pragma = tdsqlite3_mprintf("PRAGMA cipher_hmac_algorithm = %s;", SQLCIPHER_HMAC_SHA512_LABEL);
-      }
-      codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-      algorithm = sqlcipher_codec_ctx_get_kdf_algorithm(ctx);
-      pragma = NULL;
-      if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA1) {
-        pragma = tdsqlite3_mprintf("PRAGMA cipher_kdf_algorithm = %s;", SQLCIPHER_PBKDF2_HMAC_SHA1_LABEL);
-      } else if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA256) {
-        pragma = tdsqlite3_mprintf("PRAGMA cipher_kdf_algorithm = %s;", SQLCIPHER_PBKDF2_HMAC_SHA256_LABEL);
-      } else if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA512) {
-        pragma = tdsqlite3_mprintf("PRAGMA cipher_kdf_algorithm = %s;", SQLCIPHER_PBKDF2_HMAC_SHA512_LABEL);
-      }
-      codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-    }
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_default_settings")==0 ){
-    int algorithm;
-    char *pragma;
-
-    pragma = tdsqlite3_mprintf("PRAGMA cipher_default_kdf_iter = %d;", sqlcipher_get_default_kdf_iter());
-    codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-    pragma = tdsqlite3_mprintf("PRAGMA cipher_default_page_size = %d;", sqlcipher_get_default_pagesize());
-    codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-    pragma = tdsqlite3_mprintf("PRAGMA cipher_default_use_hmac = %d;", sqlcipher_get_default_use_hmac());
-    codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-    pragma = tdsqlite3_mprintf("PRAGMA cipher_default_plaintext_header_size = %d;", sqlcipher_get_default_plaintext_header_size());
-    codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-    algorithm = sqlcipher_get_default_hmac_algorithm();
-    pragma = NULL;
-    if(algorithm == SQLCIPHER_HMAC_SHA1) {
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_default_hmac_algorithm = %s;", SQLCIPHER_HMAC_SHA1_LABEL);
-    } else if(algorithm == SQLCIPHER_HMAC_SHA256) {
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_default_hmac_algorithm = %s;", SQLCIPHER_HMAC_SHA256_LABEL);
-    } else if(algorithm == SQLCIPHER_HMAC_SHA512) {
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_default_hmac_algorithm = %s;", SQLCIPHER_HMAC_SHA512_LABEL);
-    }
-    codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-
-    algorithm = sqlcipher_get_default_kdf_algorithm();
-    pragma = NULL;
-    if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA1) {
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_default_kdf_algorithm = %s;", SQLCIPHER_PBKDF2_HMAC_SHA1_LABEL);
-    } else if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA256) {
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_default_kdf_algorithm = %s;", SQLCIPHER_PBKDF2_HMAC_SHA256_LABEL);
-    } else if(algorithm == SQLCIPHER_PBKDF2_HMAC_SHA512) {
-      pragma = tdsqlite3_mprintf("PRAGMA cipher_default_kdf_algorithm = %s;", SQLCIPHER_PBKDF2_HMAC_SHA512_LABEL);
-    }
-    codec_vdbe_return_string(pParse, "pragma", pragma, P4_DYNAMIC);
-  }else
-  if( tdsqlite3StrICmp(zLeft,"cipher_integrity_check")==0 ){
-    if(ctx) {
-      sqlcipher_codec_ctx_integrity_check(ctx, pParse, "cipher_integrity_check");
-    }
-  }else {
-    return 0;
-  }
-  return 1;
-}
-
-/* these constants are used internally within SQLite's pager.c to differentiate between
-   operations on the main database or journal pages. This is important in the context
-   of a rekey operations, where the journal must be written using the original key 
-   material (to allow a transactional rollback), while the new database pages are being
-   written with the new key material*/
-#define CODEC_READ_OP 3
-#define CODEC_WRITE_OP 6
-#define CODEC_JOURNAL_OP 7
-
-/*
- * tdsqlite3Codec can be called in multiple modes.
- * encrypt mode - expected to return a pointer to the 
- *   encrypted data without altering pData.
- * decrypt mode - expected to return a pointer to pData, with
- *   the data decrypted in the input buffer
- */
-static void* tdsqlite3Codec(void *iCtx, void *data, Pgno pgno, int mode) {
-  codec_ctx *ctx = (codec_ctx *) iCtx;
-  int offset = 0, rc = 0;
-  int page_sz = sqlcipher_codec_ctx_get_pagesize(ctx); 
-  unsigned char *pData = (unsigned char *) data;
-  void *buffer = sqlcipher_codec_ctx_get_data(ctx);
-  int plaintext_header_sz = sqlcipher_codec_ctx_get_plaintext_header_size(ctx);
-  int cctx = CIPHER_READ_CTX;
-
-  CODEC_TRACE("tdsqlite3Codec: entered pgno=%d, mode=%d, page_sz=%d\n", pgno, mode, page_sz);
-
-#ifdef SQLCIPHER_EXT
-  if(sqlcipher_license_check(ctx) != SQLITE_OK) return NULL;
-#endif
-
-  /* call to derive keys if not present yet */
-  if((rc = sqlcipher_codec_key_derive(ctx)) != SQLITE_OK) {
-   sqlcipher_codec_ctx_set_error(ctx, rc); 
-   return NULL;
-  }
-
-  if(pgno == 1) /* adjust starting pointers in data page for header offset on first page*/   
-    offset = plaintext_header_sz ? plaintext_header_sz : FILE_HEADER_SZ; 
-  
-
-  CODEC_TRACE("tdsqlite3Codec: switch mode=%d offset=%d\n",  mode, offset);
-  switch(mode) {
-    case CODEC_READ_OP: /* decrypt */
-      if(pgno == 1) /* copy initial part of file header or SQLite magic to buffer */ 
-        memcpy(buffer, plaintext_header_sz ? pData : (void *) SQLITE_FILE_HEADER, offset); 
-
-      rc = sqlcipher_page_cipher(ctx, cctx, pgno, CIPHER_DECRYPT, page_sz - offset, pData + offset, (unsigned char*)buffer + offset);
-      if(rc != SQLITE_OK) { /* clear results of failed cipher operation and set error */
-        sqlcipher_memset((unsigned char*) buffer+offset, 0, page_sz-offset);
-        sqlcipher_codec_ctx_set_error(ctx, rc);
-      }
-      memcpy(pData, buffer, page_sz); /* copy buffer data back to pData and return */
-      return pData;
-      break;
-
-    case CODEC_WRITE_OP: /* encrypt database page, operate on write context and fall through to case 7, so the write context is used*/
-      cctx = CIPHER_WRITE_CTX; 
-
-    case CODEC_JOURNAL_OP: /* encrypt journal page, operate on read context use to get the original page data from the database */ 
-      if(pgno == 1) { /* copy initial part of file header or salt to buffer */ 
-        void *kdf_salt = NULL; 
-        /* retrieve the kdf salt */
-        if((rc = sqlcipher_codec_ctx_get_kdf_salt(ctx, &kdf_salt)) != SQLITE_OK) {
-          sqlcipher_codec_ctx_set_error(ctx, rc); 
-          return NULL;
-        }
-        memcpy(buffer, plaintext_header_sz ? pData : kdf_salt, offset); 
-      }
-      rc = sqlcipher_page_cipher(ctx, cctx, pgno, CIPHER_ENCRYPT, page_sz - offset, pData + offset, (unsigned char*)buffer + offset);
-      if(rc != SQLITE_OK) { /* clear results of failed cipher operation and set error */
-        sqlcipher_memset((unsigned char*)buffer+offset, 0, page_sz-offset);
-        sqlcipher_codec_ctx_set_error(ctx, rc);
-      }
-      return buffer; /* return persistent buffer data, pData remains intact */
-      break;
-
-    default:
-      sqlcipher_codec_ctx_set_error(ctx, SQLITE_ERROR); /* unsupported mode, set error */
-      return pData;
-      break;
-  }
-}
-
-static void tdsqlite3FreeCodecArg(void *pCodecArg) {
-  codec_ctx *ctx = (codec_ctx *) pCodecArg;
-  if(pCodecArg == NULL) return;
-  sqlcipher_codec_ctx_free(&ctx); /* wipe and free allocated memory for the context */
-  sqlcipher_deactivate(); /* cleanup related structures, OpenSSL etc, when codec is detatched */
-}
-
-SQLITE_PRIVATE int tdsqlite3CodecAttach(tdsqlite3* db, int nDb, const void *zKey, int nKey) {
-  struct Db *pDb = &db->aDb[nDb];
-
-  CODEC_TRACE("tdsqlite3CodecAttach: entered db=%p, nDb=%d zKey=%s, nKey=%d\n", db, nDb, (char *)zKey, nKey);
-
-
-  if(nKey && zKey && pDb->pBt) {
-    int rc;
-    Pager *pPager = pDb->pBt->pBt->pPager;
-    tdsqlite3_file *fd;
-    codec_ctx *ctx;
-
-    /* check if the tdsqlite3_file is open, and if not force handle to NULL */ 
-    if((fd = tdsqlite3PagerFile(pPager))->pMethods == 0) fd = NULL; 
-
-    CODEC_TRACE("tdsqlite3CodecAttach: calling sqlcipher_activate()\n");
-    sqlcipher_activate(); /* perform internal initialization for sqlcipher */
-
-    CODEC_TRACE_MUTEX("tdsqlite3CodecAttach: entering database mutex %p\n", db->mutex);
-    tdsqlite3_mutex_enter(db->mutex);
-    CODEC_TRACE_MUTEX("tdsqlite3CodecAttach: entered database mutex %p\n", db->mutex);
-
-#ifdef SQLCIPHER_EXT
-    if((rc = tdsqlite3_set_authorizer(db, sqlcipher_license_authorizer, db)) != SQLITE_OK) {
-      tdsqlite3_mutex_leave(db->mutex);
-      return rc;
-    }
-#endif
-
-    /* point the internal codec argument against the contet to be prepared */
-    CODEC_TRACE("tdsqlite3CodecAttach: calling sqlcipher_codec_ctx_init()\n");
-    rc = sqlcipher_codec_ctx_init(&ctx, pDb, pDb->pBt->pBt->pPager, zKey, nKey);
-
-    if(rc != SQLITE_OK) {
-      /* initialization failed, do not attach potentially corrupted context */
-      CODEC_TRACE("tdsqlite3CodecAttach: context initialization failed with rc=%d\n", rc);
-      /* force an error at the pager level, such that even the upstream caller ignores the return code
-         the pager will be in an error state and will process no further operations */
-      tdsqlite3pager_error(pPager, rc);
-      pDb->pBt->pBt->db->errCode = rc;
-      CODEC_TRACE_MUTEX("tdsqlite3CodecAttach: leaving database mutex %p (early return on rc=%d)\n", db->mutex, rc);
-      tdsqlite3_mutex_leave(db->mutex);
-      CODEC_TRACE_MUTEX("tdsqlite3CodecAttach: left database mutex %p (early return on rc=%d)\n", db->mutex, rc);
-      return rc;
-    }
-
-    CODEC_TRACE("tdsqlite3CodecAttach: calling tdsqlite3PagerSetCodec()\n");
-    tdsqlite3PagerSetCodec(tdsqlite3BtreePager(pDb->pBt), tdsqlite3Codec, NULL, tdsqlite3FreeCodecArg, (void *) ctx);
-
-    CODEC_TRACE("tdsqlite3CodecAttach: calling codec_set_btree_to_codec_pagesize()\n");
-    codec_set_btree_to_codec_pagesize(db, pDb, ctx);
-
-    /* force secure delete. This has the benefit of wiping internal data when deleted
-       and also ensures that all pages are written to disk (i.e. not skipped by
-       tdsqlite3PagerDontWrite optimizations) */ 
-    CODEC_TRACE("tdsqlite3CodecAttach: calling tdsqlite3BtreeSecureDelete()\n");
-    tdsqlite3BtreeSecureDelete(pDb->pBt, 1); 
-
-    /* if fd is null, then this is an in-memory database and
-       we dont' want to overwrite the AutoVacuum settings
-       if not null, then set to the default */
-    if(fd != NULL) { 
-      CODEC_TRACE("tdsqlite3CodecAttach: calling tdsqlite3BtreeSetAutoVacuum()\n");
-      tdsqlite3BtreeSetAutoVacuum(pDb->pBt, SQLITE_DEFAULT_AUTOVACUUM);
-    }
-    CODEC_TRACE_MUTEX("tdsqlite3CodecAttach: leaving database mutex %p\n", db->mutex);
-    tdsqlite3_mutex_leave(db->mutex);
-    CODEC_TRACE_MUTEX("tdsqlite3CodecAttach: left database mutex %p\n", db->mutex);
-  }
-  return SQLITE_OK;
-}
-
-int sqlcipher_find_db_index(tdsqlite3 *db, const char *zDb) {
-  int db_index;
-  if(zDb == NULL){
-    return 0;
-  }
-  for(db_index = 0; db_index < db->nDb; db_index++) {
-    struct Db *pDb = &db->aDb[db_index];
-    if(strcmp(pDb->zDbSName, zDb) == 0) {
-      return db_index;
-    }
-  }
-  return 0;
-}
-
-SQLITE_API void tdsqlite3_activate_see(const char* in) {
-  /* do nothing, security enhancements are always active */
-}
-
-SQLITE_API int tdsqlite3_key(tdsqlite3 *db, const void *pKey, int nKey) {
-  CODEC_TRACE("tdsqlite3_key entered: db=%p pKey=%s nKey=%d\n", db, (char *)pKey, nKey);
-  return tdsqlite3_key_v2(db, "main", pKey, nKey);
-}
-
-SQLITE_API int tdsqlite3_key_v2(tdsqlite3 *db, const char *zDb, const void *pKey, int nKey) {
-  CODEC_TRACE("tdsqlite3_key_v2: entered db=%p zDb=%s pKey=%s nKey=%d\n", db, zDb, (char *)pKey, nKey);
-  /* attach key if db and pKey are not null and nKey is > 0 */
-  if(db && pKey && nKey) {
-    int db_index = sqlcipher_find_db_index(db, zDb);
-    return tdsqlite3CodecAttach(db, db_index, pKey, nKey); 
-  }
-  return SQLITE_ERROR;
-}
-
-SQLITE_API int tdsqlite3_rekey(tdsqlite3 *db, const void *pKey, int nKey) {
-  CODEC_TRACE("tdsqlite3_rekey entered: db=%p pKey=%s nKey=%d\n", db, (char *)pKey, nKey);
-  return tdsqlite3_rekey_v2(db, "main", pKey, nKey);
-}
-
-/* tdsqlite3_rekey_v2
-** Given a database, this will reencrypt the database using a new key.
-** There is only one possible modes of operation - to encrypt a database
-** that is already encrpyted. If the database is not already encrypted
-** this should do nothing
-** The proposed logic for this function follows:
-** 1. Determine if the database is already encryptped
-** 2. If there is NOT already a key present do nothing
-** 3. If there is a key present, re-encrypt the database with the new key
-*/
-SQLITE_API int tdsqlite3_rekey_v2(tdsqlite3 *db, const char *zDb, const void *pKey, int nKey) {
-  CODEC_TRACE("tdsqlite3_rekey_v2: entered db=%p zDb=%s pKey=%s, nKey=%d\n", db, zDb, (char *)pKey, nKey);
-  if(db && pKey && nKey) {
-    int db_index = sqlcipher_find_db_index(db, zDb);
-    struct Db *pDb = &db->aDb[db_index];
-    CODEC_TRACE("tdsqlite3_rekey_v2: database pDb=%p db_index:%d\n", pDb, db_index);
-    if(pDb->pBt) {
-      codec_ctx *ctx;
-      int rc, page_count;
-      Pgno pgno;
-      PgHdr *page;
-      Pager *pPager = pDb->pBt->pBt->pPager;
-
-      ctx = (codec_ctx*) tdsqlite3PagerGetCodec(pDb->pBt->pBt->pPager);
-     
-      if(ctx == NULL) { 
-        /* there was no codec attached to this database, so this should do nothing! */ 
-        CODEC_TRACE("tdsqlite3_rekey_v2: no codec attached to db, exiting\n");
-        return SQLITE_OK;
-      }
-
-      CODEC_TRACE_MUTEX("tdsqlite3_rekey_v2: entering database mutex %p\n", db->mutex);
-      tdsqlite3_mutex_enter(db->mutex);
-      CODEC_TRACE_MUTEX("tdsqlite3_rekey_v2: entered database mutex %p\n", db->mutex);
-
-      codec_set_pass_key(db, db_index, pKey, nKey, CIPHER_WRITE_CTX);
-    
-      /* do stuff here to rewrite the database 
-      ** 1. Create a transaction on the database
-      ** 2. Iterate through each page, reading it and then writing it.
-      ** 3. If that goes ok then commit and put ctx->rekey into ctx->key
-      **    note: don't deallocate rekey since it may be used in a subsequent iteration 
-      */
-      rc = tdsqlite3BtreeBeginTrans(pDb->pBt, 1, 0); /* begin write transaction */
-      tdsqlite3PagerPagecount(pPager, &page_count);
-      for(pgno = 1; rc == SQLITE_OK && pgno <= (unsigned int)page_count; pgno++) { /* pgno's start at 1 see pager.c:pagerAcquire */
-        if(!tdsqlite3pager_is_mj_pgno(pPager, pgno)) { /* skip this page (see pager.c:pagerAcquire for reasoning) */
-          rc = tdsqlite3PagerGet(pPager, pgno, &page, 0);
-          if(rc == SQLITE_OK) { /* write page see pager_incr_changecounter for example */
-            rc = tdsqlite3PagerWrite(page);
-            if(rc == SQLITE_OK) {
-              tdsqlite3PagerUnref(page);
-            } else {
-             CODEC_TRACE("tdsqlite3_rekey_v2: error %d occurred writing page %d\n", rc, pgno);  
-            }
-          } else {
-             CODEC_TRACE("tdsqlite3_rekey_v2: error %d occurred getting page %d\n", rc, pgno);  
-          }
-        } 
-      }
-
-      /* if commit was successful commit and copy the rekey data to current key, else rollback to release locks */
-      if(rc == SQLITE_OK) { 
-        CODEC_TRACE("tdsqlite3_rekey_v2: committing\n");
-        rc = tdsqlite3BtreeCommit(pDb->pBt); 
-        sqlcipher_codec_key_copy(ctx, CIPHER_WRITE_CTX);
-      } else {
-        CODEC_TRACE("tdsqlite3_rekey_v2: rollback\n");
-        tdsqlite3BtreeRollback(pDb->pBt, SQLITE_ABORT_ROLLBACK, 0);
-      }
-
-      CODEC_TRACE_MUTEX("tdsqlite3_rekey_v2: leaving database mutex %p\n", db->mutex);
-      tdsqlite3_mutex_leave(db->mutex);
-      CODEC_TRACE_MUTEX("tdsqlite3_rekey_v2: left database mutex %p\n", db->mutex);
-    }
-    return SQLITE_OK;
-  }
-  return SQLITE_ERROR;
-}
-
-SQLITE_PRIVATE void tdsqlite3CodecGetKey(tdsqlite3* db, int nDb, void **zKey, int *nKey) {
-  struct Db *pDb = &db->aDb[nDb];
-  CODEC_TRACE("tdsqlite3CodecGetKey: entered db=%p, nDb=%d\n", db, nDb);
-  if( pDb->pBt ) {
-    codec_ctx *ctx = (codec_ctx*) tdsqlite3PagerGetCodec(pDb->pBt->pBt->pPager);
-    
-    if(ctx) {
-      /* pass back the keyspec from the codec, unless PRAGMA cipher_store_pass
-         is set or keyspec has not yet been derived, in which case pass
-         back the password key material */
-      sqlcipher_codec_get_keyspec(ctx, zKey, nKey);
-      if(sqlcipher_codec_get_store_pass(ctx) == 1 || *zKey == NULL) {
-        sqlcipher_codec_get_pass(ctx, zKey, nKey);
-      }
-    } else {
-      *zKey = NULL;
-      *nKey = 0;
-    }
-  }
-}
-
-#ifndef OMIT_EXPORT
-
-/*
- * Implementation of an "export" function that allows a caller
- * to duplicate the main database to an attached database. This is intended
- * as a conveneince for users who need to:
- * 
- *   1. migrate from an non-encrypted database to an encrypted database
- *   2. move from an encrypted database to a non-encrypted database
- *   3. convert beween the various flavors of encrypted databases.  
- *
- * This implementation is based heavily on the procedure and code used
- * in vacuum.c, but is exposed as a function that allows export to any
- * named attached database.
- */
-
-/*
-** Finalize a prepared statement.  If there was an error, store the
-** text of the error message in *pzErrMsg.  Return the result code.
-** 
-** Based on vacuumFinalize from vacuum.c
-*/
-static int sqlcipher_finalize(tdsqlite3 *db, tdsqlite3_stmt *pStmt, char **pzErrMsg){
-  int rc;
-  rc = tdsqlite3VdbeFinalize((Vdbe*)pStmt);
-  if( rc ){
-    tdsqlite3SetString(pzErrMsg, db, tdsqlite3_errmsg(db));
-  }
-  return rc;
-}
-
-/*
-** Execute zSql on database db. Return an error code.
-** 
-** Based on execSql from vacuum.c
-*/
-static int sqlcipher_execSql(tdsqlite3 *db, char **pzErrMsg, const char *zSql){
-  tdsqlite3_stmt *pStmt;
-  VVA_ONLY( int rc; )
-  if( !zSql ){
-    return SQLITE_NOMEM;
-  }
-  if( SQLITE_OK!=tdsqlite3_prepare(db, zSql, -1, &pStmt, 0) ){
-    tdsqlite3SetString(pzErrMsg, db, tdsqlite3_errmsg(db));
-    return tdsqlite3_errcode(db);
-  }
-  VVA_ONLY( rc = ) tdsqlite3_step(pStmt);
-  assert( rc!=SQLITE_ROW );
-  return sqlcipher_finalize(db, pStmt, pzErrMsg);
-}
-
-/*
-** Execute zSql on database db. The statement returns exactly
-** one column. Execute this as SQL on the same database.
-** 
-** Based on execExecSql from vacuum.c
-*/
-static int sqlcipher_execExecSql(tdsqlite3 *db, char **pzErrMsg, const char *zSql){
-  tdsqlite3_stmt *pStmt;
-  int rc;
-
-  rc = tdsqlite3_prepare(db, zSql, -1, &pStmt, 0);
-  if( rc!=SQLITE_OK ) return rc;
-
-  while( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-    rc = sqlcipher_execSql(db, pzErrMsg, (char*)tdsqlite3_column_text(pStmt, 0));
-    if( rc!=SQLITE_OK ){
-      sqlcipher_finalize(db, pStmt, pzErrMsg);
-      return rc;
-    }
-  }
-
-  return sqlcipher_finalize(db, pStmt, pzErrMsg);
-}
-
-/*
- * copy database and schema from the main database to an attached database
- * 
- * Based on tdsqlite3RunVacuum from vacuum.c
-*/
-void sqlcipher_exportFunc(tdsqlite3_context *context, int argc, tdsqlite3_value **argv) {
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  const char* targetDb, *sourceDb; 
-  int targetDb_idx = 0;
-  u64 saved_flags = db->flags;        /* Saved value of the db->flags */
-  u32 saved_mDbFlags = db->mDbFlags;        /* Saved value of the db->mDbFlags */
-  int saved_nChange = db->nChange;      /* Saved value of db->nChange */
-  int saved_nTotalChange = db->nTotalChange; /* Saved value of db->nTotalChange */
-  u8 saved_mTrace = db->mTrace;        /* Saved value of db->mTrace */
-  int (*saved_xTrace)(u32,void*,void*,void*) = db->xTrace; /* Saved db->xTrace */
-  int rc = SQLITE_OK;     /* Return code from service routines */
-  char *zSql = NULL;         /* SQL statements */
-  char *pzErrMsg = NULL;
-
-  if(argc != 1 && argc != 2) {
-    rc = SQLITE_ERROR;
-    pzErrMsg = tdsqlite3_mprintf("invalid number of arguments (%d) passed to sqlcipher_export", argc);
-    goto end_of_export;
-  }
-
-  targetDb = (const char*) tdsqlite3_value_text(argv[0]);
-  sourceDb = (argc == 2) ? (char *) tdsqlite3_value_text(argv[1]) : "main";
-
-  /* if the name of the target is not main, but the index returned is zero 
-     there is a mismatch and we should not proceed */
-  targetDb_idx =  sqlcipher_find_db_index(db, targetDb);
-  if(targetDb_idx == 0 && tdsqlite3StrICmp("main", targetDb) != 0) {
-    rc = SQLITE_ERROR;
-    pzErrMsg = tdsqlite3_mprintf("unknown database %s", targetDb);
-    goto end_of_export;
-  }
-  db->init.iDb = targetDb_idx;
-
-  db->flags |= SQLITE_WriteSchema | SQLITE_IgnoreChecks; 
-  db->mDbFlags |= DBFLAG_PreferBuiltin | DBFLAG_Vacuum;
-  db->flags &= ~(u64)(SQLITE_ForeignKeys | SQLITE_ReverseOrder | SQLITE_Defensive | SQLITE_CountRows); 
-  db->xTrace = 0;
-  db->mTrace = 0;
-
-  /* Query the schema of the main database. Create a mirror schema
-  ** in the temporary database.
-  */
-  zSql = tdsqlite3_mprintf(
-    "SELECT sql "
-    "  FROM %s.sqlite_master WHERE type='table' AND name!='sqlite_sequence'"
-    "   AND rootpage>0"
-  , sourceDb);
-  rc = (zSql == NULL) ? SQLITE_NOMEM : sqlcipher_execExecSql(db, &pzErrMsg, zSql); 
-  if( rc!=SQLITE_OK ) goto end_of_export;
-  tdsqlite3_free(zSql);
-
-  zSql = tdsqlite3_mprintf(
-    "SELECT sql "
-    "  FROM %s.sqlite_master WHERE sql LIKE 'CREATE INDEX %%' "
-  , sourceDb);
-  rc = (zSql == NULL) ? SQLITE_NOMEM : sqlcipher_execExecSql(db, &pzErrMsg, zSql); 
-  if( rc!=SQLITE_OK ) goto end_of_export;
-  tdsqlite3_free(zSql);
-
-  zSql = tdsqlite3_mprintf(
-    "SELECT sql "
-    "  FROM %s.sqlite_master WHERE sql LIKE 'CREATE UNIQUE INDEX %%'"
-  , sourceDb);
-  rc = (zSql == NULL) ? SQLITE_NOMEM : sqlcipher_execExecSql(db, &pzErrMsg, zSql); 
-  if( rc!=SQLITE_OK ) goto end_of_export;
-  tdsqlite3_free(zSql);
-
-  /* Loop through the tables in the main database. For each, do
-  ** an "INSERT INTO rekey_db.xxx SELECT * FROM main.xxx;" to copy
-  ** the contents to the temporary database.
-  */
-  zSql = tdsqlite3_mprintf(
-    "SELECT 'INSERT INTO %s.' || quote(name) "
-    "|| ' SELECT * FROM %s.' || quote(name) || ';'"
-    "FROM %s.sqlite_master "
-    "WHERE type = 'table' AND name!='sqlite_sequence' "
-    "  AND rootpage>0"
-  , targetDb, sourceDb, sourceDb);
-  rc = (zSql == NULL) ? SQLITE_NOMEM : sqlcipher_execExecSql(db, &pzErrMsg, zSql); 
-  if( rc!=SQLITE_OK ) goto end_of_export;
-  tdsqlite3_free(zSql);
-
-  /* Copy over the contents of the sequence table
-  */
-  zSql = tdsqlite3_mprintf(
-    "SELECT 'INSERT INTO %s.' || quote(name) "
-    "|| ' SELECT * FROM %s.' || quote(name) || ';' "
-    "FROM %s.sqlite_master WHERE name=='sqlite_sequence';"
-  , targetDb, sourceDb, targetDb);
-  rc = (zSql == NULL) ? SQLITE_NOMEM : sqlcipher_execExecSql(db, &pzErrMsg, zSql); 
-  if( rc!=SQLITE_OK ) goto end_of_export;
-  tdsqlite3_free(zSql);
-
-  /* Copy the triggers, views, and virtual tables from the main database
-  ** over to the temporary database.  None of these objects has any
-  ** associated storage, so all we have to do is copy their entries
-  ** from the SQLITE_MASTER table.
-  */
-  zSql = tdsqlite3_mprintf(
-    "INSERT INTO %s.sqlite_master "
-    "  SELECT type, name, tbl_name, rootpage, sql"
-    "    FROM %s.sqlite_master"
-    "   WHERE type='view' OR type='trigger'"
-    "      OR (type='table' AND rootpage=0)"
-  , targetDb, sourceDb);
-  rc = (zSql == NULL) ? SQLITE_NOMEM : sqlcipher_execSql(db, &pzErrMsg, zSql); 
-  if( rc!=SQLITE_OK ) goto end_of_export;
-  tdsqlite3_free(zSql);
-
-  zSql = NULL;
-end_of_export:
-  db->init.iDb = 0;
-  db->flags = saved_flags;
-  db->mDbFlags = saved_mDbFlags;
-  db->nChange = saved_nChange;
-  db->nTotalChange = saved_nTotalChange;
-  db->xTrace = saved_xTrace;
-  db->mTrace = saved_mTrace;
-
-  if(zSql) tdsqlite3_free(zSql);
-
-  if(rc) {
-    if(pzErrMsg != NULL) {
-      tdsqlite3_result_error(context, pzErrMsg, -1);
-      tdsqlite3DbFree(db, pzErrMsg);
-    } else {
-      tdsqlite3_result_error(context, tdsqlite3ErrStr(rc), -1);
-    }
-  }
-}
-
-#endif
-
-/* END SQLCIPHER */
-#endif
-
-/************** End of crypto.c **********************************************/
-/************** Begin file crypto_impl.c *************************************/
-/* 
-** SQLCipher
-** http://sqlcipher.net
-** 
-** Copyright (c) 2008 - 2013, ZETETIC LLC
-** All rights reserved.
-** 
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-**     * Redistributions of source code must retain the above copyright
-**       notice, this list of conditions and the following disclaimer.
-**     * Redistributions in binary form must reproduce the above copyright
-**       notice, this list of conditions and the following disclaimer in the
-**       documentation and/or other materials provided with the distribution.
-**     * Neither the name of the ZETETIC LLC nor the
-**       names of its contributors may be used to endorse or promote products
-**       derived from this software without specific prior written permission.
-** 
-** THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
-** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-** DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
-** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-**  
-*/
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-
-/* #include "sqlcipher.h" */
-/* #include "crypto.h" */
-// #ifndef OMIT_MEMLOCK
-#if defined(__unix__) || defined(__APPLE__) || defined(_AIX)
-#include <errno.h>
-#include <unistd.h>
-#include <sys/resource.h>
-#include <sys/mman.h>
-#elif defined(_WIN32)
-#include <windows.h>
-#endif
-// #endif
-
-static volatile unsigned int default_flags = DEFAULT_CIPHER_FLAGS;
-static volatile unsigned char hmac_salt_mask = HMAC_SALT_MASK;
-
-#include <openssl/opensslv.h>
-
-#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10000000L
-static volatile int default_kdf_iter = 64000;
-static volatile int default_page_size = 1024;
-static volatile int default_plaintext_header_sz = 0;
-static volatile int default_hmac_algorithm = SQLCIPHER_HMAC_SHA1;
-static volatile int default_kdf_algorithm = SQLCIPHER_PBKDF2_HMAC_SHA1;
-#else
-static volatile int default_kdf_iter = PBKDF2_ITER;
-static volatile int default_page_size = 4096;
-static volatile int default_plaintext_header_sz = 0;
-static volatile int default_hmac_algorithm = SQLCIPHER_HMAC_SHA512;
-static volatile int default_kdf_algorithm = SQLCIPHER_PBKDF2_HMAC_SHA512;
-#endif
-static volatile int mem_security_on = 1;
-static volatile int mem_security_initialized = 0;
-static volatile int mem_security_activated = 0;
-static volatile unsigned int sqlcipher_activate_count = 0;
-static volatile tdsqlite3_mem_methods default_mem_methods;
-static sqlcipher_provider *default_provider = NULL;
-
-static tdsqlite3_mutex* sqlcipher_static_mutex[SQLCIPHER_MUTEX_COUNT];
-
-tdsqlite3_mutex* sqlcipher_mutex(int mutex) {
-  if(mutex < 0 || mutex >= SQLCIPHER_MUTEX_COUNT) return NULL;
-  return sqlcipher_static_mutex[mutex];
-}
-
-static int sqlcipher_mem_init(void *pAppData) {
-  return default_mem_methods.xInit(pAppData);
-}
-static void sqlcipher_mem_shutdown(void *pAppData) {
-  default_mem_methods.xShutdown(pAppData);
-}
-static void *sqlcipher_mem_malloc(int n) {
-  void *ptr = default_mem_methods.xMalloc(n);
-  if(mem_security_on) {
-    CODEC_TRACE_MEMORY("sqlcipher_mem_malloc: calling sqlcipher_mlock(%p,%d)\n", ptr, n);
-    sqlcipher_mlock(ptr, n); 
-    if(!mem_security_activated) mem_security_activated = 1;
-  }
-  return ptr;
-}
-static int sqlcipher_mem_size(void *p) {
-  return default_mem_methods.xSize(p);
-}
-static void sqlcipher_mem_free(void *p) {
-  int sz;
-  if(mem_security_on) {
-    sz = sqlcipher_mem_size(p);
-    CODEC_TRACE_MEMORY("sqlcipher_mem_free: calling sqlcipher_memset(%p,0,%d) and sqlcipher_munlock(%p, %d) \n", p, sz, p, sz);
-    sqlcipher_memset(p, 0, sz);
-    sqlcipher_munlock(p, sz);
-    if(!mem_security_activated) mem_security_activated = 1;
-  }
-  default_mem_methods.xFree(p);
-}
-static void *sqlcipher_mem_realloc(void *p, int n) {
-  return default_mem_methods.xRealloc(p, n);
-}
-static int sqlcipher_mem_roundup(int n) {
-  return default_mem_methods.xRoundup(n);
-}
-
-static tdsqlite3_mem_methods sqlcipher_mem_methods = {
-  sqlcipher_mem_malloc,
-  sqlcipher_mem_free,
-  sqlcipher_mem_realloc,
-  sqlcipher_mem_size,
-  sqlcipher_mem_roundup,
-  sqlcipher_mem_init,
-  sqlcipher_mem_shutdown,
-  0
-};
-
-void sqlcipher_init_memmethods() {
-  if(mem_security_initialized) return;
-  if(tdsqlite3_config(SQLITE_CONFIG_GETMALLOC, &default_mem_methods) != SQLITE_OK ||
-     tdsqlite3_config(SQLITE_CONFIG_MALLOC, &sqlcipher_mem_methods)  != SQLITE_OK) {
-    mem_security_on = mem_security_activated = 0;
-  }
-  mem_security_initialized = 1;
-}
-
-int sqlcipher_register_provider(sqlcipher_provider *p) {
-  CODEC_TRACE_MUTEX("sqlcipher_register_provider: entering SQLCIPHER_MUTEX_PROVIDER\n");
-  tdsqlite3_mutex_enter(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER));
-  CODEC_TRACE_MUTEX("sqlcipher_register_provider: entered SQLCIPHER_MUTEX_PROVIDER\n");
-
-  if(default_provider != NULL && default_provider != p) {
-    /* only free the current registerd provider if it has been initialized
-       and it isn't a pointer to the same provider passed to the function
-       (i.e. protect against a caller calling register twice for the same provider) */
-    sqlcipher_free(default_provider, sizeof(sqlcipher_provider));
-  }
-  default_provider = p;   
-  CODEC_TRACE_MUTEX("sqlcipher_register_provider: leaving SQLCIPHER_MUTEX_PROVIDER\n");
-  tdsqlite3_mutex_leave(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER));
-  CODEC_TRACE_MUTEX("sqlcipher_register_provider: left SQLCIPHER_MUTEX_PROVIDER\n");
-
-  return SQLITE_OK;
-}
-
-/* return a pointer to the currently registered provider. This will
-   allow an application to fetch the current registered provider and
-   make minor changes to it */
-sqlcipher_provider* sqlcipher_get_provider() {
-  return default_provider;
-}
-
-void sqlcipher_deactivate() {
-  CODEC_TRACE_MUTEX("sqlcipher_deactivate: entering static master mutex\n");
-  tdsqlite3_mutex_enter(tdsqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER));
-  CODEC_TRACE_MUTEX("sqlcipher_deactivate: entered static master mutex\n");
-
-  sqlcipher_activate_count--;
-  /* if no connections are using sqlcipher, cleanup globals */
-  if(sqlcipher_activate_count < 1) {
-
-    CODEC_TRACE_MUTEX("sqlcipher_deactivate: entering SQLCIPHER_MUTEX_PROVIDER\n");
-    tdsqlite3_mutex_enter(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER));
-    CODEC_TRACE_MUTEX("sqlcipher_deactivate: entered SQLCIPHER_MUTEX_PROVIDER\n");
-
-    if(default_provider != NULL) {
-      sqlcipher_free(default_provider, sizeof(sqlcipher_provider));
-      default_provider = NULL;
-    }
-
-    CODEC_TRACE_MUTEX("sqlcipher_deactivate: leaving SQLCIPHER_MUTEX_PROVIDER\n");
-    tdsqlite3_mutex_leave(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER));
-    CODEC_TRACE_MUTEX("sqlcipher_deactivate: left SQLCIPHER_MUTEX_PROVIDER\n");
-
-#ifdef SQLCIPHER_EXT
-    sqlcipher_ext_provider_destroy();
-#endif
-
-    /* last connection closed, free mutexes */
-    if(sqlcipher_activate_count == 0) {
-      int i;
-      for(i = 0; i < SQLCIPHER_MUTEX_COUNT; i++) {
-        tdsqlite3_mutex_free(sqlcipher_static_mutex[i]);
-      }
-    }
-    sqlcipher_activate_count = 0; /* reset activation count */
-  }
-
-  CODEC_TRACE_MUTEX("sqlcipher_deactivate: leaving static master mutex\n");
-  tdsqlite3_mutex_leave(tdsqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER));
-  CODEC_TRACE_MUTEX("sqlcipher_deactivate: left static master mutex\n");
-}
-
-/* constant time memset using volitile to avoid having the memset
-   optimized out by the compiler. 
-   Note: As suggested by Joachim Schipper (joachim.schipper@fox-it.com)
-*/
-void* sqlcipher_memset(void *v, unsigned char value, u64 len) {
-  u64 i = 0;
-  volatile unsigned char *a = v;
-
-  if (v == NULL) return v;
-
-  CODEC_TRACE_MEMORY("sqlcipher_memset: setting %p[0-%llu]=%d)\n", a, len, value);
-  for(i = 0; i < len; i++) {
-    a[i] = value;
-  }
-
-  return v;
-}
-
-/* constant time memory check tests every position of a memory segement
-   matches a single value (i.e. the memory is all zeros)
-   returns 0 if match, 1 of no match */
-int sqlcipher_ismemset(const void *v, unsigned char value, u64 len) {
-  const unsigned char *a = v;
-  u64 i = 0, result = 0;
-
-  for(i = 0; i < len; i++) {
-    result |= a[i] ^ value;
-  }
-
-  return (result != 0);
-}
-
-/* constant time memory comparison routine. 
-   returns 0 if match, 1 if no match */
-int sqlcipher_memcmp(const void *v0, const void *v1, int len) {
-  const unsigned char *a0 = v0, *a1 = v1;
-  int i = 0, result = 0;
-
-  for(i = 0; i < len; i++) {
-    result |= a0[i] ^ a1[i];
-  }
-  
-  return (result != 0);
-}
-
-void sqlcipher_mlock(void *ptr, u64 sz) {
-#ifndef OMIT_MEMLOCK
-#if defined(__unix__) || defined(__APPLE__) 
-  int rc;
-  unsigned long pagesize = sysconf(_SC_PAGESIZE);
-  unsigned long offset = (unsigned long) ptr % pagesize;
-
-  if(ptr == NULL || sz == 0) return;
-
-  CODEC_TRACE_MEMORY("sqlcipher_mem_lock: calling mlock(%p,%lu); _SC_PAGESIZE=%lu\n", ptr - offset, sz + offset, pagesize);
-  rc = mlock(ptr - offset, sz + offset);
-  if(rc!=0) {
-    CODEC_TRACE_MEMORY("sqlcipher_mem_lock: mlock(%p,%lu) returned %d errno=%d\n", ptr - offset, sz + offset, rc, errno);
-  }
-#elif defined(_WIN32)
-#if !(defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP || WINAPI_FAMILY == WINAPI_FAMILY_APP))
-  int rc;
-  CODEC_TRACE("sqlcipher_mem_lock: calling VirtualLock(%p,%d)\n", ptr, sz);
-  rc = VirtualLock(ptr, sz);
-  if(rc==0) {
-    CODEC_TRACE("sqlcipher_mem_lock: VirtualLock(%p,%d) returned %d LastError=%d\n", ptr, sz, rc, GetLastError());
-  }
-#endif
-#endif
-#endif
-}
-
-void sqlcipher_munlock(void *ptr, u64 sz) {
-#ifndef OMIT_MEMLOCK
-#if defined(__unix__) || defined(__APPLE__) 
-  int rc;
-  unsigned long pagesize = sysconf(_SC_PAGESIZE);
-  unsigned long offset = (unsigned long) ptr % pagesize;
-
-  if(ptr == NULL || sz == 0) return;
-
-  CODEC_TRACE_MEMORY("sqlcipher_mem_unlock: calling munlock(%p,%lu)\n", ptr - offset, sz + offset);
-  rc = munlock(ptr - offset, sz + offset);
-  if(rc!=0) {
-    CODEC_TRACE_MEMORY("sqlcipher_mem_unlock: munlock(%p,%lu) returned %d errno=%d\n", ptr - offset, sz + offset, rc, errno);
-  }
-#elif defined(_WIN32)
-#if !(defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP || WINAPI_FAMILY == WINAPI_FAMILY_APP))
-  int rc;
-  CODEC_TRACE("sqlcipher_mem_lock: calling VirtualUnlock(%p,%d)\n", ptr, sz);
-  rc = VirtualUnlock(ptr, sz);
-  if(!rc) {
-    CODEC_TRACE("sqlcipher_mem_unlock: VirtualUnlock(%p,%d) returned %d LastError=%d\n", ptr, sz, rc, GetLastError());
-  }
-#endif
-#endif
-#endif
-}
-
-/**
-  * Free and wipe memory. Uses SQLites internal tdsqlite3_free so that memory
-  * can be countend and memory leak detection works in the test suite. 
-  * If ptr is not null memory will be freed. 
-  * If sz is greater than zero, the memory will be overwritten with zero before it is freed
-  * If sz is > 0, and not compiled with OMIT_MEMLOCK, system will attempt to unlock the
-  * memory segment so it can be paged
-  */
-void sqlcipher_free(void *ptr, u64 sz) {
-  CODEC_TRACE_MEMORY("sqlcipher_free: calling sqlcipher_memset(%p,0,%llu)\n", ptr, sz);
-  sqlcipher_memset(ptr, 0, sz);
-  sqlcipher_munlock(ptr, sz);
-  tdsqlite3_free(ptr);
-}
-
-/**
-  * allocate memory. Uses sqlite's internall malloc wrapper so memory can be 
-  * reference counted and leak detection works. Unless compiled with OMIT_MEMLOCK
-  * attempts to lock the memory pages so sensitive information won't be swapped
-  */
-void* sqlcipher_malloc(u64 sz) {
-  void *ptr;
-  CODEC_TRACE_MEMORY("sqlcipher_malloc: calling tdsqlite3Malloc(%llu)\n", sz);
-  ptr = tdsqlite3Malloc(sz);
-  CODEC_TRACE_MEMORY("sqlcipher_malloc: calling sqlcipher_memset(%p,0,%llu)\n", ptr, sz);
-  sqlcipher_memset(ptr, 0, sz);
-  sqlcipher_mlock(ptr, sz);
-  return ptr;
-}
-
-char* sqlcipher_version() {
-#ifdef CIPHER_VERSION_QUALIFIER
-    char *version = tdsqlite3_mprintf("%s %s %s", CIPHER_XSTR(CIPHER_VERSION_NUMBER), CIPHER_XSTR(CIPHER_VERSION_QUALIFIER), CIPHER_XSTR(CIPHER_VERSION_BUILD));
-#else
-    char *version = tdsqlite3_mprintf("%s %s", CIPHER_XSTR(CIPHER_VERSION_NUMBER), CIPHER_XSTR(CIPHER_VERSION_BUILD));
-#endif
-    return version;
-}
-
-/**
-  * Initialize new cipher_ctx struct. This function will allocate memory
-  * for the cipher context and for the key
-  * 
-  * returns SQLITE_OK if initialization was successful
-  * returns SQLITE_NOMEM if an error occured allocating memory
-  */
-static int sqlcipher_cipher_ctx_init(codec_ctx *ctx, cipher_ctx **iCtx) {
-  cipher_ctx *c_ctx;
-  CODEC_TRACE("sqlcipher_cipher_ctx_init: allocating context\n");
-  *iCtx = (cipher_ctx *) sqlcipher_malloc(sizeof(cipher_ctx));
-  c_ctx = *iCtx;
-  if(c_ctx == NULL) return SQLITE_NOMEM;
-
-  CODEC_TRACE("sqlcipher_cipher_ctx_init: allocating key\n");
-  c_ctx->key = (unsigned char *) sqlcipher_malloc(ctx->key_sz);
-
-  CODEC_TRACE("sqlcipher_cipher_ctx_init: allocating hmac_key\n");
-  c_ctx->hmac_key = (unsigned char *) sqlcipher_malloc(ctx->key_sz);
-
-  if(c_ctx->key == NULL) return SQLITE_NOMEM;
-  if(c_ctx->hmac_key == NULL) return SQLITE_NOMEM;
-
-  return SQLITE_OK;
-}
-
-/**
-  * Free and wipe memory associated with a cipher_ctx
-  */
-static void sqlcipher_cipher_ctx_free(codec_ctx* ctx, cipher_ctx **iCtx) {
-  cipher_ctx *c_ctx = *iCtx;
-  CODEC_TRACE("cipher_ctx_free: entered iCtx=%p\n", iCtx);
-  sqlcipher_free(c_ctx->key, ctx->key_sz);
-  sqlcipher_free(c_ctx->hmac_key, ctx->key_sz);
-  sqlcipher_free(c_ctx->pass, c_ctx->pass_sz);
-  sqlcipher_free(c_ctx->keyspec, ctx->keyspec_sz);
-  sqlcipher_free(c_ctx, sizeof(cipher_ctx)); 
-}
-
-static int sqlcipher_codec_ctx_reserve_setup(codec_ctx *ctx) {
-  int base_reserve = ctx->iv_sz; /* base reserve size will be IV only */ 
-  int reserve = base_reserve;
-
-  ctx->hmac_sz = ctx->provider->get_hmac_sz(ctx->provider_ctx, ctx->hmac_algorithm); 
-
-  if(sqlcipher_codec_ctx_get_use_hmac(ctx))
-    reserve += ctx->hmac_sz; /* if reserve will include hmac, update that size */
-
-  /* calculate the amount of reserve needed in even increments of the cipher block size */
-  reserve = ((reserve % ctx->block_sz) == 0) ? reserve :
-               ((reserve / ctx->block_sz) + 1) * ctx->block_sz;  
-
-  CODEC_TRACE("sqlcipher_codec_ctx_reserve_setup: base_reserve=%d block_sz=%d md_size=%d reserve=%d\n", 
-                base_reserve, ctx->block_sz, ctx->hmac_sz, reserve); 
-
-  ctx->reserve_sz = reserve;
-
-  return SQLITE_OK;
-}
-
-/**
-  * Compare one cipher_ctx to another.
-  *
-  * returns 0 if all the parameters (except the derived key data) are the same
-  * returns 1 otherwise
-  */
-static int sqlcipher_cipher_ctx_cmp(cipher_ctx *c1, cipher_ctx *c2) {
-  int are_equal = (
-    c1->pass_sz == c2->pass_sz
-    && (
-      c1->pass == c2->pass
-      || !sqlcipher_memcmp((const unsigned char*)c1->pass,
-                           (const unsigned char*)c2->pass,
-                           c1->pass_sz)
-    ));
-
-  CODEC_TRACE("sqlcipher_cipher_ctx_cmp: entered \
-                  c1=%p c2=%p \
-                  c1->pass_sz=%d c2->pass_sz=%d \
-                  c1->pass=%p c2->pass=%p \
-                  c1->pass=%s c2->pass=%s \
-                  sqlcipher_memcmp=%d \
-                  are_equal=%d \
-                   \n", 
-                  c1, c2,
-                  c1->pass_sz, c2->pass_sz,
-                  c1->pass, c2->pass,
-                  c1->pass, c2->pass,
-                  (c1->pass == NULL || c2->pass == NULL) 
-                    ? -1 : sqlcipher_memcmp(
-                      (const unsigned char*)c1->pass,
-                      (const unsigned char*)c2->pass,
-                      c1->pass_sz),
-                  are_equal
-                  );
-
-  return !are_equal; /* return 0 if they are the same, 1 otherwise */
-}
-
-/**
-  * Copy one cipher_ctx to another. For instance, assuming that read_ctx is a 
-  * fully initialized context, you could copy it to write_ctx and all yet data
-  * and pass information across
-  *
-  * returns SQLITE_OK if initialization was successful
-  * returns SQLITE_NOMEM if an error occured allocating memory
-  */
-static int sqlcipher_cipher_ctx_copy(codec_ctx *ctx, cipher_ctx *target, cipher_ctx *source) {
-  void *key = target->key; 
-  void *hmac_key = target->hmac_key; 
-
-  CODEC_TRACE("sqlcipher_cipher_ctx_copy: entered target=%p, source=%p\n", target, source);
-  sqlcipher_free(target->pass, target->pass_sz); 
-  sqlcipher_free(target->keyspec, ctx->keyspec_sz); 
-  memcpy(target, source, sizeof(cipher_ctx));
-
-  target->key = key; /* restore pointer to previously allocated key data */
-  memcpy(target->key, source->key, ctx->key_sz);
-
-  target->hmac_key = hmac_key; /* restore pointer to previously allocated hmac key data */
-  memcpy(target->hmac_key, source->hmac_key, ctx->key_sz);
-
-  if(source->pass && source->pass_sz) {
-    target->pass = sqlcipher_malloc(source->pass_sz);
-    if(target->pass == NULL) return SQLITE_NOMEM;
-    memcpy(target->pass, source->pass, source->pass_sz);
-  }
-  if(source->keyspec) {
-    target->keyspec = sqlcipher_malloc(ctx->keyspec_sz);
-    if(target->keyspec == NULL) return SQLITE_NOMEM;
-    memcpy(target->keyspec, source->keyspec, ctx->keyspec_sz);
-  }
-  return SQLITE_OK;
-}
-
-/**
-  * Set the keyspec for the cipher_ctx
-  * 
-  * returns SQLITE_OK if assignment was successfull
-  * returns SQLITE_NOMEM if an error occured allocating memory
-  */
-static int sqlcipher_cipher_ctx_set_keyspec(codec_ctx *ctx, cipher_ctx *c_ctx, const unsigned char *key) {
-  /* free, zero existing pointers and size */
-  sqlcipher_free(c_ctx->keyspec, ctx->keyspec_sz);
-  c_ctx->keyspec = NULL;
-
-  c_ctx->keyspec = sqlcipher_malloc(ctx->keyspec_sz);
-  if(c_ctx->keyspec == NULL) return SQLITE_NOMEM;
-
-  c_ctx->keyspec[0] = 'x';
-  c_ctx->keyspec[1] = '\'';
-  cipher_bin2hex(key, ctx->key_sz, c_ctx->keyspec + 2);
-  cipher_bin2hex(ctx->kdf_salt, ctx->kdf_salt_sz, c_ctx->keyspec + (ctx->key_sz * 2) + 2);
-  c_ctx->keyspec[ctx->keyspec_sz - 1] = '\'';
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_get_store_pass(codec_ctx *ctx) {
-  return ctx->store_pass;
-}
-
-void sqlcipher_codec_set_store_pass(codec_ctx *ctx, int value) {
-  ctx->store_pass = value;
-}
-
-void sqlcipher_codec_get_pass(codec_ctx *ctx, void **zKey, int *nKey) {
-  *zKey = ctx->read_ctx->pass;
-  *nKey = ctx->read_ctx->pass_sz;
-}
-
-static void sqlcipher_set_derive_key(codec_ctx *ctx, int derive) {
-  if(ctx->read_ctx != NULL) ctx->read_ctx->derive_key = 1;
-  if(ctx->write_ctx != NULL) ctx->write_ctx->derive_key = 1;
-}
-
-/**
-  * Set the passphrase for the cipher_ctx
-  * 
-  * returns SQLITE_OK if assignment was successfull
-  * returns SQLITE_NOMEM if an error occured allocating memory
-  */
-static int sqlcipher_cipher_ctx_set_pass(cipher_ctx *ctx, const void *zKey, int nKey) {
-  /* free, zero existing pointers and size */
-  sqlcipher_free(ctx->pass, ctx->pass_sz);
-  ctx->pass = NULL;
-  ctx->pass_sz = 0;
-
-  if(zKey && nKey) { /* if new password is provided, copy it */
-    ctx->pass_sz = nKey;
-    ctx->pass = sqlcipher_malloc(nKey);
-    if(ctx->pass == NULL) return SQLITE_NOMEM;
-    memcpy(ctx->pass, zKey, nKey);
-  } 
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_set_pass(codec_ctx *ctx, const void *zKey, int nKey, int for_ctx) {
-  cipher_ctx *c_ctx = for_ctx ? ctx->write_ctx : ctx->read_ctx;
-  int rc;
-
-  if((rc = sqlcipher_cipher_ctx_set_pass(c_ctx, zKey, nKey)) != SQLITE_OK) return rc; 
-  c_ctx->derive_key = 1;
-
-  if(for_ctx == 2)
-    if((rc = sqlcipher_cipher_ctx_copy(ctx, for_ctx ? ctx->read_ctx : ctx->write_ctx, c_ctx)) != SQLITE_OK) 
-      return rc; 
-
-  return SQLITE_OK;
-} 
-
-const char* sqlcipher_codec_ctx_get_cipher(codec_ctx *ctx) {
-  return ctx->provider->get_cipher(ctx->provider_ctx);
-}
-
-/* set the global default KDF iteration */
-void sqlcipher_set_default_kdf_iter(int iter) {
-  default_kdf_iter = iter; 
-}
-
-int sqlcipher_get_default_kdf_iter() {
-  return default_kdf_iter;
-}
-
-int sqlcipher_codec_ctx_set_kdf_iter(codec_ctx *ctx, int kdf_iter) {
-  ctx->kdf_iter = kdf_iter;
-  sqlcipher_set_derive_key(ctx, 1);
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_get_kdf_iter(codec_ctx *ctx) {
-  return ctx->kdf_iter;
-}
-
-int sqlcipher_codec_ctx_set_fast_kdf_iter(codec_ctx *ctx, int fast_kdf_iter) {
-  ctx->fast_kdf_iter = fast_kdf_iter;
-  sqlcipher_set_derive_key(ctx, 1);
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_get_fast_kdf_iter(codec_ctx *ctx) {
-  return ctx->fast_kdf_iter;
-}
-
-/* set the global default flag for HMAC */
-void sqlcipher_set_default_use_hmac(int use) {
-  if(use) default_flags |= CIPHER_FLAG_HMAC; 
-  else default_flags &= ~CIPHER_FLAG_HMAC; 
-}
-
-int sqlcipher_get_default_use_hmac() {
-  return (default_flags & CIPHER_FLAG_HMAC) != 0;
-}
-
-void sqlcipher_set_hmac_salt_mask(unsigned char mask) {
-  hmac_salt_mask = mask;
-}
-
-unsigned char sqlcipher_get_hmac_salt_mask() {
-  return hmac_salt_mask;
-}
-
-/* set the codec flag for whether this individual database should be using hmac */
-int sqlcipher_codec_ctx_set_use_hmac(codec_ctx *ctx, int use) {
-  if(use) {
-    sqlcipher_codec_ctx_set_flag(ctx, CIPHER_FLAG_HMAC);
-  } else {
-    sqlcipher_codec_ctx_unset_flag(ctx, CIPHER_FLAG_HMAC);
-  } 
-
-  return sqlcipher_codec_ctx_reserve_setup(ctx);
-}
-
-int sqlcipher_codec_ctx_get_use_hmac(codec_ctx *ctx) {
-  return (ctx->flags & CIPHER_FLAG_HMAC) != 0;
-}
-
-/* the length of plaintext header size must be:
- * 1. greater than or equal to zero
- * 2. a multiple of the cipher block size
- * 3. less than the usable size of the first database page
- */
-int sqlcipher_set_default_plaintext_header_size(int size) {
-  default_plaintext_header_sz = size;
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_set_plaintext_header_size(codec_ctx *ctx, int size) {
-  if(size >= 0 && (size % ctx->block_sz) == 0 && size < (ctx->page_sz - ctx->reserve_sz)) {
-    ctx->plaintext_header_sz = size;
-    return SQLITE_OK;
-  }
-  return SQLITE_ERROR;
-} 
-
-int sqlcipher_get_default_plaintext_header_size() {
-  return default_plaintext_header_sz;
-}
-
-int sqlcipher_codec_ctx_get_plaintext_header_size(codec_ctx *ctx) {
-  return ctx->plaintext_header_sz;
-}
-
-/* manipulate HMAC algorithm */
-int sqlcipher_set_default_hmac_algorithm(int algorithm) {
-  default_hmac_algorithm = algorithm;
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_set_hmac_algorithm(codec_ctx *ctx, int algorithm) {
-  ctx->hmac_algorithm = algorithm;
-  return sqlcipher_codec_ctx_reserve_setup(ctx);
-} 
-
-int sqlcipher_get_default_hmac_algorithm() {
-  return default_hmac_algorithm;
-}
-
-int sqlcipher_codec_ctx_get_hmac_algorithm(codec_ctx *ctx) {
-  return ctx->hmac_algorithm;
-}
-
-/* manipulate KDF algorithm */
-int sqlcipher_set_default_kdf_algorithm(int algorithm) {
-  default_kdf_algorithm = algorithm;
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_set_kdf_algorithm(codec_ctx *ctx, int algorithm) {
-  ctx->kdf_algorithm = algorithm;
-  return SQLITE_OK;
-} 
-
-int sqlcipher_get_default_kdf_algorithm() {
-  return default_kdf_algorithm;
-}
-
-int sqlcipher_codec_ctx_get_kdf_algorithm(codec_ctx *ctx) {
-  return ctx->kdf_algorithm;
-}
-
-int sqlcipher_codec_ctx_set_flag(codec_ctx *ctx, unsigned int flag) {
-  ctx->flags |= flag;
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_unset_flag(codec_ctx *ctx, unsigned int flag) {
-  ctx->flags &= ~flag;
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_get_flag(codec_ctx *ctx, unsigned int flag) {
-  return (ctx->flags & flag) != 0;
-}
-
-void sqlcipher_codec_ctx_set_error(codec_ctx *ctx, int error) {
-  CODEC_TRACE("sqlcipher_codec_ctx_set_error: ctx=%p, error=%d\n", ctx, error);
-  tdsqlite3pager_error(ctx->pBt->pBt->pPager, error);
-  ctx->pBt->pBt->db->errCode = error;
-}
-
-int sqlcipher_codec_ctx_get_reservesize(codec_ctx *ctx) {
-  return ctx->reserve_sz;
-}
-
-void* sqlcipher_codec_ctx_get_data(codec_ctx *ctx) {
-  return ctx->buffer;
-}
-
-static int sqlcipher_codec_ctx_init_kdf_salt(codec_ctx *ctx) {
-  tdsqlite3_file *fd = tdsqlite3PagerFile(ctx->pBt->pBt->pPager);
-
-  if(!ctx->need_kdf_salt) {
-    return SQLITE_OK; /* don't reload salt when not needed */
-  }
-
-  /* read salt from header, if present, otherwise generate a new random salt */
-  CODEC_TRACE("sqlcipher_codec_ctx_init_kdf_salt: obtaining salt\n");
-  if(fd == NULL || fd->pMethods == 0 || tdsqlite3OsRead(fd, ctx->kdf_salt, ctx->kdf_salt_sz, 0) != SQLITE_OK) {
-    CODEC_TRACE("sqlcipher_codec_ctx_init_kdf_salt: unable to read salt from file header, generating random\n");
-    if(ctx->provider->random(ctx->provider_ctx, ctx->kdf_salt, ctx->kdf_salt_sz) != SQLITE_OK) return SQLITE_ERROR;
-  }
-  ctx->need_kdf_salt = 0;
-  return SQLITE_OK; 
-}
-
-int sqlcipher_codec_ctx_set_kdf_salt(codec_ctx *ctx, unsigned char *salt, int size) {
-  if(size >= ctx->kdf_salt_sz) {
-    memcpy(ctx->kdf_salt, salt, ctx->kdf_salt_sz);
-    ctx->need_kdf_salt = 0;
-    return SQLITE_OK;
-  }
-  return SQLITE_ERROR;
-}
-
-int sqlcipher_codec_ctx_get_kdf_salt(codec_ctx *ctx, void** salt) {
-  int rc = SQLITE_OK;
-  if(ctx->need_kdf_salt) {
-    rc = sqlcipher_codec_ctx_init_kdf_salt(ctx);
-  }
-  *salt = ctx->kdf_salt;
-  return rc;
-}
-
-void sqlcipher_codec_get_keyspec(codec_ctx *ctx, void **zKey, int *nKey) {
-  *zKey = ctx->read_ctx->keyspec;
-  *nKey = ctx->keyspec_sz;
-}
-
-int sqlcipher_codec_ctx_set_pagesize(codec_ctx *ctx, int size) {
-  if(!((size != 0) && ((size & (size - 1)) == 0)) || size < 512 || size > 65536) {
-    CODEC_TRACE(("cipher_page_size not a power of 2 and between 512 and 65536 inclusive\n"));
-    return SQLITE_ERROR;
-  }
-  /* attempt to free the existing page buffer */
-  sqlcipher_free(ctx->buffer,ctx->page_sz);
-  ctx->page_sz = size;
-
-  /* pre-allocate a page buffer of PageSize bytes. This will
-     be used as a persistent buffer for encryption and decryption 
-     operations to avoid overhead of multiple memory allocations*/
-  ctx->buffer = sqlcipher_malloc(size);
-  if(ctx->buffer == NULL) return SQLITE_NOMEM;
-
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_get_pagesize(codec_ctx *ctx) {
-  return ctx->page_sz;
-}
-
-void sqlcipher_set_default_pagesize(int page_size) {
-  default_page_size = page_size;
-}
-
-int sqlcipher_get_default_pagesize() {
-  return default_page_size;
-}
-
-void sqlcipher_set_mem_security(int on) {
-  mem_security_on = on;
-  mem_security_activated = 0;
-}
-
-int sqlcipher_get_mem_security() {
-  return mem_security_on && mem_security_activated;
-}
-
-
-int sqlcipher_codec_ctx_init(codec_ctx **iCtx, Db *pDb, Pager *pPager, const void *zKey, int nKey) {
-  int rc;
-  codec_ctx *ctx;
-
-  CODEC_TRACE("sqlcipher_codec_ctx_init: allocating context\n");
-
-  *iCtx = sqlcipher_malloc(sizeof(codec_ctx));
-  ctx = *iCtx;
-
-  if(ctx == NULL) return SQLITE_NOMEM;
-
-  ctx->pBt = pDb->pBt; /* assign pointer to database btree structure */
-
-  /* allocate space for salt data. Then read the first 16 bytes 
-       directly off the database file. This is the salt for the
-       key derivation function. If we get a short read allocate
-       a new random salt value */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: allocating kdf_salt\n");
-  ctx->kdf_salt_sz = FILE_HEADER_SZ;
-  ctx->kdf_salt = sqlcipher_malloc(ctx->kdf_salt_sz);
-  if(ctx->kdf_salt == NULL) return SQLITE_NOMEM;
-
-  /* allocate space for separate hmac salt data. We want the
-     HMAC derivation salt to be different than the encryption
-     key derivation salt */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: allocating hmac_kdf_salt\n");
-  ctx->hmac_kdf_salt = sqlcipher_malloc(ctx->kdf_salt_sz);
-  if(ctx->hmac_kdf_salt == NULL) return SQLITE_NOMEM;
-
-  /* setup default flags */
-  ctx->flags = default_flags;
-
-  /* defer attempt to read KDF salt until first use */
-  ctx->need_kdf_salt = 1;
-
-  /* setup the crypto provider  */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: allocating provider\n");
-  ctx->provider = (sqlcipher_provider *) sqlcipher_malloc(sizeof(sqlcipher_provider));
-  if(ctx->provider == NULL) return SQLITE_NOMEM;
-
-  /* make a copy of the provider to be used for the duration of the context */
-  CODEC_TRACE_MUTEX("sqlcipher_codec_ctx_init: entering SQLCIPHER_MUTEX_PROVIDER\n");
-  tdsqlite3_mutex_enter(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER));
-  CODEC_TRACE_MUTEX("sqlcipher_codec_ctx_init: entered SQLCIPHER_MUTEX_PROVIDER\n");
-
-  memcpy(ctx->provider, default_provider, sizeof(sqlcipher_provider));
-
-  CODEC_TRACE_MUTEX("sqlcipher_codec_ctx_init: leaving SQLCIPHER_MUTEX_PROVIDER\n");
-  tdsqlite3_mutex_leave(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER));
-  CODEC_TRACE_MUTEX("sqlcipher_codec_ctx_init: left SQLCIPHER_MUTEX_PROVIDER\n");
-
-  CODEC_TRACE("sqlcipher_codec_ctx_init: calling provider ctx_init\n");
-  if((rc = ctx->provider->ctx_init(&ctx->provider_ctx)) != SQLITE_OK) return rc;
-
-  ctx->key_sz = ctx->provider->get_key_sz(ctx->provider_ctx);
-  ctx->iv_sz = ctx->provider->get_iv_sz(ctx->provider_ctx);
-  ctx->block_sz = ctx->provider->get_block_sz(ctx->provider_ctx);
-
-  /* establic the size for a hex-formated key specification, containing the 
-     raw encryption key and the salt used to generate it format. will be x'hexkey...hexsalt'
-     so oversize by 3 bytes */ 
-  ctx->keyspec_sz = ((ctx->key_sz + ctx->kdf_salt_sz) * 2) + 3;
-
-  /*
-     Always overwrite page size and set to the default because the first page of the database
-     in encrypted and thus sqlite can't effectively determine the pagesize. this causes an issue in 
-     cases where bytes 16 & 17 of the page header are a power of 2 as reported by John Lehman
-  */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: calling sqlcipher_codec_ctx_set_pagesize with %d\n", default_page_size);
-  if((rc = sqlcipher_codec_ctx_set_pagesize(ctx, default_page_size)) != SQLITE_OK) return rc;
-
-  /* establish settings for the KDF iterations and fast (HMAC) KDF iterations */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: setting default_kdf_iter\n");
-  if((rc = sqlcipher_codec_ctx_set_kdf_iter(ctx, default_kdf_iter)) != SQLITE_OK) return rc;
-
-  CODEC_TRACE("sqlcipher_codec_ctx_init: setting fast_kdf_iter\n");
-  if((rc = sqlcipher_codec_ctx_set_fast_kdf_iter(ctx, FAST_PBKDF2_ITER)) != SQLITE_OK) return rc;
-
-  /* set the default HMAC and KDF algorithms which will determine the reserve size */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: calling sqlcipher_codec_ctx_set_hmac_algorithm with %d\n", default_hmac_algorithm);
-  if((rc = sqlcipher_codec_ctx_set_hmac_algorithm(ctx, default_hmac_algorithm)) != SQLITE_OK) return rc;
-
-  /* Note that use_hmac is a special case that requires recalculation of page size
-     so we call set_use_hmac to perform setup */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: setting use_hmac\n");
-  if((rc = sqlcipher_codec_ctx_set_use_hmac(ctx, default_flags & CIPHER_FLAG_HMAC)) != SQLITE_OK) return rc;
-
-  CODEC_TRACE("sqlcipher_codec_ctx_init: calling sqlcipher_codec_ctx_set_kdf_algorithm with %d\n", default_kdf_algorithm);
-  if((rc = sqlcipher_codec_ctx_set_kdf_algorithm(ctx, default_kdf_algorithm)) != SQLITE_OK) return rc;
-
-  /* setup the default plaintext header size */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: calling sqlcipher_codec_ctx_set_plaintext_header_size with %d\n", default_plaintext_header_sz);
-  if((rc = sqlcipher_codec_ctx_set_plaintext_header_size(ctx, default_plaintext_header_sz)) != SQLITE_OK) return rc;
-
-  /* initialize the read and write sub-contexts. this must happen after key_sz is established  */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: initializing read_ctx\n");
-  if((rc = sqlcipher_cipher_ctx_init(ctx, &ctx->read_ctx)) != SQLITE_OK) return rc; 
-
-  CODEC_TRACE("sqlcipher_codec_ctx_init: initializing write_ctx\n");
-  if((rc = sqlcipher_cipher_ctx_init(ctx, &ctx->write_ctx)) != SQLITE_OK) return rc; 
-
-  /* set the key material on one of the sub cipher contexts and sync them up */
-  CODEC_TRACE("sqlcipher_codec_ctx_init: setting pass key\n");
-  if((rc = sqlcipher_codec_ctx_set_pass(ctx, zKey, nKey, 0)) != SQLITE_OK) return rc;
-
-  CODEC_TRACE("sqlcipher_codec_ctx_init: copying write_ctx to read_ctx\n");
-  if((rc = sqlcipher_cipher_ctx_copy(ctx, ctx->write_ctx, ctx->read_ctx)) != SQLITE_OK) return rc;
-
-  return SQLITE_OK;
-}
-
-/**
-  * Free and wipe memory associated with a cipher_ctx, including the allocated
-  * read_ctx and write_ctx.
-  */
-void sqlcipher_codec_ctx_free(codec_ctx **iCtx) {
-  codec_ctx *ctx = *iCtx;
-  CODEC_TRACE("codec_ctx_free: entered iCtx=%p\n", iCtx);
-  sqlcipher_free(ctx->kdf_salt, ctx->kdf_salt_sz);
-  sqlcipher_free(ctx->hmac_kdf_salt, ctx->kdf_salt_sz);
-  sqlcipher_free(ctx->buffer, 0);
-
-  ctx->provider->ctx_free(&ctx->provider_ctx);
-  sqlcipher_free(ctx->provider, sizeof(sqlcipher_provider)); 
-
-  sqlcipher_cipher_ctx_free(ctx, &ctx->read_ctx);
-  sqlcipher_cipher_ctx_free(ctx, &ctx->write_ctx);
-  sqlcipher_free(ctx, sizeof(codec_ctx)); 
-}
-
-/** convert a 32bit unsigned integer to little endian byte ordering */
-static void sqlcipher_put4byte_le(unsigned char *p, u32 v) { 
-  p[0] = (u8)v;
-  p[1] = (u8)(v>>8);
-  p[2] = (u8)(v>>16);
-  p[3] = (u8)(v>>24);
-}
-
-static int sqlcipher_page_hmac(codec_ctx *ctx, cipher_ctx *c_ctx, Pgno pgno, unsigned char *in, int in_sz, unsigned char *out) {
-  unsigned char pgno_raw[sizeof(pgno)];
-  /* we may convert page number to consistent representation before calculating MAC for
-     compatibility across big-endian and little-endian platforms. 
-
-     Note: The public release of sqlcipher 2.0.0 to 2.0.6 had a bug where the bytes of pgno 
-     were used directly in the MAC. SQLCipher convert's to little endian by default to preserve
-     backwards compatibility on the most popular platforms, but can optionally be configured
-     to use either big endian or native byte ordering via pragma. */
-
-  if(ctx->flags & CIPHER_FLAG_LE_PGNO) { /* compute hmac using little endian pgno*/
-    sqlcipher_put4byte_le(pgno_raw, pgno);
-  } else if(ctx->flags & CIPHER_FLAG_BE_PGNO) { /* compute hmac using big endian pgno */
-    tdsqlite3Put4byte(pgno_raw, pgno); /* tdsqlite3Put4byte converts 32bit uint to big endian  */
-  } else { /* use native byte ordering */
-    memcpy(pgno_raw, &pgno, sizeof(pgno));
-  }
-
-  /* include the encrypted page data,  initialization vector, and page number in HMAC. This will 
-     prevent both tampering with the ciphertext, manipulation of the IV, or resequencing otherwise
-     valid pages out of order in a database */ 
-  return ctx->provider->hmac(
-    ctx->provider_ctx, ctx->hmac_algorithm, c_ctx->hmac_key,
-    ctx->key_sz, in,
-    in_sz, (unsigned char*) &pgno_raw,
-    sizeof(pgno), out);
-}
-
-/*
- * ctx - codec context
- * pgno - page number in database
- * size - size in bytes of input and output buffers
- * mode - 1 to encrypt, 0 to decrypt
- * in - pointer to input bytes
- * out - pouter to output bytes
- */
-int sqlcipher_page_cipher(codec_ctx *ctx, int for_ctx, Pgno pgno, int mode, int page_sz, unsigned char *in, unsigned char *out) {
-  cipher_ctx *c_ctx = for_ctx ? ctx->write_ctx : ctx->read_ctx;
-  unsigned char *iv_in, *iv_out, *hmac_in, *hmac_out, *out_start;
-  int size;
-
-  /* calculate some required positions into various buffers */
-  size = page_sz - ctx->reserve_sz; /* adjust size to useable size and memset reserve at end of page */
-  iv_out = out + size;
-  iv_in = in + size;
-
-  /* hmac will be written immediately after the initialization vector. the remainder of the page reserve will contain
-     random bytes. note, these pointers are only valid when using hmac */
-  hmac_in = in + size + ctx->iv_sz; 
-  hmac_out = out + size + ctx->iv_sz;
-  out_start = out; /* note the original position of the output buffer pointer, as out will be rewritten during encryption */
-
-  CODEC_TRACE("codec_cipher:entered pgno=%d, mode=%d, size=%d\n", pgno, mode, size);
-  CODEC_HEXDUMP("codec_cipher: input page data", in, page_sz);
-
-  /* the key size should never be zero. If it is, error out. */
-  if(ctx->key_sz == 0) {
-    CODEC_TRACE("codec_cipher: error possible context corruption, key_sz is zero for pgno=%d\n", pgno);
-    goto error;
-  } 
-
-  if(mode == CIPHER_ENCRYPT) {
-    /* start at front of the reserve block, write random data to the end */
-    if(ctx->provider->random(ctx->provider_ctx, iv_out, ctx->reserve_sz) != SQLITE_OK) goto error;
-  } else { /* CIPHER_DECRYPT */
-    memcpy(iv_out, iv_in, ctx->iv_sz); /* copy the iv from the input to output buffer */
-  } 
-
-  if((ctx->flags & CIPHER_FLAG_HMAC) && (mode == CIPHER_DECRYPT) && !ctx->skip_read_hmac) {
-    if(sqlcipher_page_hmac(ctx, c_ctx, pgno, in, size + ctx->iv_sz, hmac_out) != SQLITE_OK) {
-      CODEC_TRACE("codec_cipher: hmac operation on decrypt failed for pgno=%d\n", pgno);
-      goto error;
-    }
-
-    CODEC_TRACE("codec_cipher: comparing hmac on in=%p out=%p hmac_sz=%d\n", hmac_in, hmac_out, ctx->hmac_sz);
-    if(sqlcipher_memcmp(hmac_in, hmac_out, ctx->hmac_sz) != 0) { /* the hmac check failed */ 
-      if(sqlcipher_ismemset(in, 0, page_sz) == 0) {
-        /* first check if the entire contents of the page is zeros. If so, this page 
-           resulted from a short read (i.e. sqlite attempted to pull a page after the end of the file. these 
-           short read failures must be ignored for autovaccum mode to work so wipe the output buffer 
-           and return SQLITE_OK to skip the decryption step. */
-        CODEC_TRACE("codec_cipher: zeroed page (short read) for pgno %d, encryption but returning SQLITE_OK\n", pgno);
-        sqlcipher_memset(out, 0, page_sz); 
-        return SQLITE_OK;
-      } else {
-        /* if the page memory is not all zeros, it means the there was data and a hmac on the page. 
-           since the check failed, the page was either tampered with or corrupted. wipe the output buffer,
-           and return SQLITE_ERROR to the caller */
-        CODEC_TRACE("codec_cipher: hmac check failed for pgno=%d returning SQLITE_ERROR\n", pgno);
-        goto error;
-      }
-    }
-  } 
-  
-  if(ctx->provider->cipher(ctx->provider_ctx, mode, c_ctx->key, ctx->key_sz, iv_out, in, size, out) != SQLITE_OK) {
-    CODEC_TRACE("codec_cipher: cipher operation mode=%d failed for pgno=%d returning SQLITE_ERROR\n", mode, pgno);
-    goto error;
-  };
-
-  if((ctx->flags & CIPHER_FLAG_HMAC) && (mode == CIPHER_ENCRYPT)) {
-    if(sqlcipher_page_hmac(ctx, c_ctx, pgno, out_start, size + ctx->iv_sz, hmac_out) != SQLITE_OK) {
-      CODEC_TRACE("codec_cipher: hmac operation on encrypt failed for pgno=%d\n", pgno);
-      goto error;
-    }; 
-  }
-
-  CODEC_HEXDUMP("codec_cipher: output page data", out_start, page_sz);
-
-  return SQLITE_OK;
-error:
-  sqlcipher_memset(out, 0, page_sz); 
-  return SQLITE_ERROR;
-}
-
-/**
-  * Derive an encryption key for a cipher contex key based on the raw password.
-  *
-  * If the raw key data is formated as x'hex' and there are exactly enough hex chars to fill
-  * the key (i.e 64 hex chars for a 256 bit key) then the key data will be used directly. 
-
-  * Else, if the raw key data is formated as x'hex' and there are exactly enough hex chars to fill
-  * the key and the salt (i.e 92 hex chars for a 256 bit key and 16 byte salt) then it will be unpacked
-  * as the key followed by the salt.
-  * 
-  * Otherwise, a key data will be derived using PBKDF2
-  * 
-  * returns SQLITE_OK if initialization was successful
-  * returns SQLITE_ERROR if the key could't be derived (for instance if pass is NULL or pass_sz is 0)
-  */
-static int sqlcipher_cipher_ctx_key_derive(codec_ctx *ctx, cipher_ctx *c_ctx) {
-  int rc;
-  CODEC_TRACE("cipher_ctx_key_derive: entered c_ctx->pass=%s, c_ctx->pass_sz=%d \
-                ctx->kdf_salt=%p ctx->kdf_salt_sz=%d ctx->kdf_iter=%d \
-                ctx->hmac_kdf_salt=%p, ctx->fast_kdf_iter=%d ctx->key_sz=%d\n",
-                c_ctx->pass, c_ctx->pass_sz, ctx->kdf_salt, ctx->kdf_salt_sz, ctx->kdf_iter,
-                ctx->hmac_kdf_salt, ctx->fast_kdf_iter, ctx->key_sz);
-                
-  
-  if(c_ctx->pass && c_ctx->pass_sz) {  /* if key material is present on the context for derivation */ 
-   
-    /* if necessary, initialize the salt from the header or random source */
-    if(ctx->need_kdf_salt) {
-      if((rc = sqlcipher_codec_ctx_init_kdf_salt(ctx)) != SQLITE_OK) return rc;
-    }
- 
-    if (c_ctx->pass_sz == ((ctx->key_sz * 2) + 3) && tdsqlite3StrNICmp((const char *)c_ctx->pass ,"x'", 2) == 0 && cipher_isHex(c_ctx->pass + 2, ctx->key_sz * 2)) { 
-      int n = c_ctx->pass_sz - 3; /* adjust for leading x' and tailing ' */
-      const unsigned char *z = c_ctx->pass + 2; /* adjust lead offset of x' */
-      CODEC_TRACE("cipher_ctx_key_derive: using raw key from hex\n");
-      cipher_hex2bin(z, n, c_ctx->key);
-    } else if (c_ctx->pass_sz == (((ctx->key_sz + ctx->kdf_salt_sz) * 2) + 3) && tdsqlite3StrNICmp((const char *)c_ctx->pass ,"x'", 2) == 0 && cipher_isHex(c_ctx->pass + 2, (ctx->key_sz + ctx->kdf_salt_sz) * 2)) { 
-      const unsigned char *z = c_ctx->pass + 2; /* adjust lead offset of x' */
-      CODEC_TRACE("cipher_ctx_key_derive: using raw key from hex\n"); 
-      cipher_hex2bin(z, (ctx->key_sz * 2), c_ctx->key);
-      cipher_hex2bin(z + (ctx->key_sz * 2), (ctx->kdf_salt_sz * 2), ctx->kdf_salt);
-    } else { 
-      CODEC_TRACE("cipher_ctx_key_derive: deriving key using full PBKDF2 with %d iterations\n", ctx->kdf_iter);
-      if(ctx->provider->kdf(ctx->provider_ctx, ctx->kdf_algorithm, c_ctx->pass, c_ctx->pass_sz, 
-                    ctx->kdf_salt, ctx->kdf_salt_sz, ctx->kdf_iter,
-                    ctx->key_sz, c_ctx->key) != SQLITE_OK) return SQLITE_ERROR;
-    }
-
-    /* set the context "keyspec" containing the hex-formatted key and salt to be used when attaching databases */
-    if((rc = sqlcipher_cipher_ctx_set_keyspec(ctx, c_ctx, c_ctx->key)) != SQLITE_OK) return rc;
-
-    /* if this context is setup to use hmac checks, generate a seperate and different 
-       key for HMAC. In this case, we use the output of the previous KDF as the input to 
-       this KDF run. This ensures a distinct but predictable HMAC key. */
-    if(ctx->flags & CIPHER_FLAG_HMAC) {
-      int i;
-
-      /* start by copying the kdf key into the hmac salt slot
-         then XOR it with the fixed hmac salt defined at compile time
-         this ensures that the salt passed in to derive the hmac key, while 
-         easy to derive and publically known, is not the same as the salt used 
-         to generate the encryption key */ 
-      memcpy(ctx->hmac_kdf_salt, ctx->kdf_salt, ctx->kdf_salt_sz);
-      for(i = 0; i < ctx->kdf_salt_sz; i++) {
-        ctx->hmac_kdf_salt[i] ^= hmac_salt_mask;
-      } 
-
-      CODEC_TRACE("cipher_ctx_key_derive: deriving hmac key from encryption key using PBKDF2 with %d iterations\n", 
-        ctx->fast_kdf_iter);
-
-      
-      if(ctx->provider->kdf(ctx->provider_ctx, ctx->kdf_algorithm, c_ctx->key, ctx->key_sz, 
-                    ctx->hmac_kdf_salt, ctx->kdf_salt_sz, ctx->fast_kdf_iter,
-                    ctx->key_sz, c_ctx->hmac_key) != SQLITE_OK) return SQLITE_ERROR;
-    }
-
-    c_ctx->derive_key = 0;
-    return SQLITE_OK;
-  };
-  return SQLITE_ERROR;
-}
-
-int sqlcipher_codec_key_derive(codec_ctx *ctx) {
-  /* derive key on first use if necessary */
-  if(ctx->read_ctx->derive_key) {
-    if(sqlcipher_cipher_ctx_key_derive(ctx, ctx->read_ctx) != SQLITE_OK) return SQLITE_ERROR;
-  }
-
-  if(ctx->write_ctx->derive_key) {
-    if(sqlcipher_cipher_ctx_cmp(ctx->write_ctx, ctx->read_ctx) == 0) {
-      /* the relevant parameters are the same, just copy read key */
-      if(sqlcipher_cipher_ctx_copy(ctx, ctx->write_ctx, ctx->read_ctx) != SQLITE_OK) return SQLITE_ERROR;
-    } else {
-      if(sqlcipher_cipher_ctx_key_derive(ctx, ctx->write_ctx) != SQLITE_OK) return SQLITE_ERROR;
-    }
-  }
-
-  /* TODO: wipe and free passphrase after key derivation */
-  if(ctx->store_pass  != 1) {
-    sqlcipher_cipher_ctx_set_pass(ctx->read_ctx, NULL, 0);
-    sqlcipher_cipher_ctx_set_pass(ctx->write_ctx, NULL, 0);
-  }
-
-  return SQLITE_OK; 
-}
-
-int sqlcipher_codec_key_copy(codec_ctx *ctx, int source) {
-  if(source == CIPHER_READ_CTX) { 
-      return sqlcipher_cipher_ctx_copy(ctx, ctx->write_ctx, ctx->read_ctx); 
-  } else {
-      return sqlcipher_cipher_ctx_copy(ctx, ctx->read_ctx, ctx->write_ctx); 
-  }
-}
-
-const char* sqlcipher_codec_get_cipher_provider(codec_ctx *ctx) {
-  return ctx->provider->get_provider_name(ctx->provider_ctx);
-}
-
-
-static int sqlcipher_check_connection(const char *filename, char *key, int key_sz, char *sql, int *user_version, char** journal_mode) {
-  int rc;
-  tdsqlite3 *db = NULL;
-  tdsqlite3_stmt *statement = NULL;
-  char *query_journal_mode = "PRAGMA journal_mode;";
-  char *query_user_version = "PRAGMA user_version;";
- 
-  rc = tdsqlite3_open(filename, &db);
-  if(rc != SQLITE_OK) goto cleanup; 
-    
-  rc = tdsqlite3_key(db, key, key_sz);
-  if(rc != SQLITE_OK) goto cleanup; 
-    
-  rc = tdsqlite3_exec(db, sql, NULL, NULL, NULL);
-  if(rc != SQLITE_OK) goto cleanup; 
-
-  /* start by querying the user version. 
-     this will fail if the key is incorrect */
-  rc = tdsqlite3_prepare(db, query_user_version, -1, &statement, NULL);
-  if(rc != SQLITE_OK) goto cleanup; 
-    
-  rc = tdsqlite3_step(statement);
-  if(rc == SQLITE_ROW) {
-    *user_version = tdsqlite3_column_int(statement, 0);
-  } else {
-    goto cleanup;
-  }
-  tdsqlite3_finalize(statement); 
-
-  rc = tdsqlite3_prepare(db, query_journal_mode, -1, &statement, NULL);
-  if(rc != SQLITE_OK) goto cleanup; 
-    
-  rc = tdsqlite3_step(statement);
-  if(rc == SQLITE_ROW) {
-    *journal_mode = tdsqlite3_mprintf("%s", tdsqlite3_column_text(statement, 0)); 
-  } else {
-    goto cleanup; 
-  }
-  rc = SQLITE_OK;
-  /* cleanup will finalize open statement */
-  
-cleanup:
-  if(statement) tdsqlite3_finalize(statement); 
-  if(db) tdsqlite3_close(db); 
-  return rc;
-}
-
-int sqlcipher_codec_ctx_integrity_check(codec_ctx *ctx, Parse *pParse, char *column) {
-  Pgno page = 1;
-  int rc = 0;
-  char *result;
-  unsigned char *hmac_out = NULL;
-  tdsqlite3_file *fd = tdsqlite3PagerFile(ctx->pBt->pBt->pPager);
-  i64 file_sz;
-
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  tdsqlite3VdbeSetNumCols(v, 1);
-  tdsqlite3VdbeSetColName(v, 0, COLNAME_NAME, column, SQLITE_STATIC);
-
-  if(fd == NULL || fd->pMethods == 0) {
-    tdsqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, "database file is undefined", P4_TRANSIENT);
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-    goto cleanup;
-  }
-
-  if(!(ctx->flags & CIPHER_FLAG_HMAC)) {
-    tdsqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, "HMAC is not enabled, unable to integrity check", P4_TRANSIENT);
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-    goto cleanup;
-  }
-
-  if((rc = sqlcipher_codec_key_derive(ctx)) != SQLITE_OK) {
-    tdsqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, "unable to derive keys", P4_TRANSIENT);
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-    goto cleanup;
-  }
-
-  tdsqlite3OsFileSize(fd, &file_sz);
-  hmac_out = sqlcipher_malloc(ctx->hmac_sz);
-
-  for(page = 1; page <= file_sz / ctx->page_sz; page++) {
-    int offset = (page - 1) * ctx->page_sz;
-    int payload_sz = ctx->page_sz - ctx->reserve_sz + ctx->iv_sz;
-    int read_sz = ctx->page_sz;
-
-    if(page==1) {
-      int page1_offset = ctx->plaintext_header_sz ? ctx->plaintext_header_sz : FILE_HEADER_SZ;
-      read_sz = read_sz - page1_offset;
-      payload_sz = payload_sz - page1_offset;
-      offset += page1_offset;
-    }
-
-    sqlcipher_memset(ctx->buffer, 0, ctx->page_sz);
-    sqlcipher_memset(hmac_out, 0, ctx->hmac_sz);
-    if(tdsqlite3OsRead(fd, ctx->buffer, read_sz, offset) != SQLITE_OK) {
-      result = tdsqlite3_mprintf("error reading %d bytes from file page %d at offset %d\n", read_sz, page, offset);
-      tdsqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, result, P4_DYNAMIC);
-      tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-    } else if(sqlcipher_page_hmac(ctx, ctx->read_ctx, page, ctx->buffer, payload_sz, hmac_out) != SQLITE_OK) {
-      result = tdsqlite3_mprintf("HMAC operation failed for page %d", page);
-      tdsqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, result, P4_DYNAMIC);
-      tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-    } else if(sqlcipher_memcmp(ctx->buffer + payload_sz, hmac_out, ctx->hmac_sz) != 0) {
-      result = tdsqlite3_mprintf("HMAC verification failed for page %d", page);
-      tdsqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, result, P4_DYNAMIC);
-      tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-    }
-  }
-
-  if(file_sz % ctx->page_sz != 0) {
-    result = tdsqlite3_mprintf("page %d has an invalid size of %lld bytes", page, file_sz - ((file_sz / ctx->page_sz) * ctx->page_sz));
-    tdsqlite3VdbeAddOp4(v, OP_String8, 0, 1, 0, result, P4_DYNAMIC);
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-  }
-
-cleanup:
-  if(hmac_out != NULL) sqlcipher_free(hmac_out, ctx->hmac_sz);
-  return SQLITE_OK;
-}
-
-int sqlcipher_codec_ctx_migrate(codec_ctx *ctx) {
-  int i, pass_sz, keyspec_sz, nRes, user_version, rc, oflags;
-  Db *pDb = 0;
-  tdsqlite3 *db = ctx->pBt->db;
-  const char *db_filename = tdsqlite3_db_filename(db, "main");
-  char *set_user_version = NULL, *pass = NULL, *attach_command = NULL, *migrated_db_filename = NULL, *keyspec = NULL, *temp = NULL, *journal_mode = NULL, *set_journal_mode = NULL, *pragma_compat = NULL;
-  Btree *pDest = NULL, *pSrc = NULL;
-  tdsqlite3_file *srcfile, *destfile;
-#if defined(_WIN32) || defined(SQLITE_OS_WINRT)
-  LPWSTR w_db_filename = NULL, w_migrated_db_filename = NULL;
-  int w_db_filename_sz = 0, w_migrated_db_filename_sz = 0;
-#endif
-  pass_sz = keyspec_sz = rc = user_version = 0;
-
-  if(!db_filename || tdsqlite3Strlen30(db_filename) < 1) 
-    goto cleanup; /* exit immediately if this is an in memory database */ 
-  
-  /* pull the provided password / key material off the current codec context */
-  pass_sz = ctx->read_ctx->pass_sz;
-  pass = sqlcipher_malloc(pass_sz+1);
-  memset(pass, 0, pass_sz+1);
-  memcpy(pass, ctx->read_ctx->pass, pass_sz);
-                                            
-  /* Version 4 - current, no upgrade required, so exit immediately */
-  rc = sqlcipher_check_connection(db_filename, pass, pass_sz, "", &user_version, &journal_mode);
-  if(rc == SQLITE_OK){
-    CODEC_TRACE("No upgrade required - exiting\n");
-    goto cleanup;
-  }
-
-  for(i = 3; i > 0; i--) {
-    pragma_compat = tdsqlite3_mprintf("PRAGMA cipher_compatibility = %d;", i);
-    rc = sqlcipher_check_connection(db_filename, pass, pass_sz, pragma_compat, &user_version, &journal_mode);
-    if(rc == SQLITE_OK) {
-      CODEC_TRACE("Version %d format found\n", i);
-      goto migrate;
-    }
-    if(pragma_compat) sqlcipher_free(pragma_compat, tdsqlite3Strlen30(pragma_compat)); 
-    pragma_compat = NULL;
-  }
-  /* if we exit the loop normally we failed to determine the version, this is an error */
-  CODEC_TRACE("Upgrade format not determined\n");
-  goto handle_error;
-
-migrate:
-
-  temp = tdsqlite3_mprintf("%s-migrated", db_filename);
-  /* overallocate migrated_db_filename, because tdsqlite3OsOpen will read past the null terminator
-   * to determine whether the filename was URI formatted */
-  migrated_db_filename = sqlcipher_malloc(tdsqlite3Strlen30(temp)+2); 
-  memcpy(migrated_db_filename, temp, tdsqlite3Strlen30(temp));
-  sqlcipher_free(temp, tdsqlite3Strlen30(temp));
-
-  attach_command = tdsqlite3_mprintf("ATTACH DATABASE '%s' as migrate;", migrated_db_filename, pass); 
-  set_user_version = tdsqlite3_mprintf("PRAGMA migrate.user_version = %d;", user_version);
-
-  rc = tdsqlite3_exec(db, pragma_compat, NULL, NULL, NULL);
-  if(rc != SQLITE_OK){
-    CODEC_TRACE("set compatibility mode failed, error code %d\n", rc);
-    goto handle_error;
-  }
-
-  /* force journal mode to DELETE, we will set it back later if different */
-  rc = tdsqlite3_exec(db, "PRAGMA journal_mode = delete;", NULL, NULL, NULL);
-  if(rc != SQLITE_OK){
-    CODEC_TRACE("force journal mode DELETE failed, error code %d\n", rc);
-    goto handle_error;
-  }
-
-  rc = tdsqlite3_exec(db, attach_command, NULL, NULL, NULL);
-  if(rc != SQLITE_OK){
-    CODEC_TRACE("attach failed, error code %d\n", rc);
-    goto handle_error;
-  }
-
-  rc = tdsqlite3_key_v2(db, "migrate", pass, pass_sz);
-  if(rc != SQLITE_OK){
-    CODEC_TRACE("keying attached database failed, error code %d\n", rc);
-    goto handle_error;
-  }
-
-  rc = tdsqlite3_exec(db, "SELECT sqlcipher_export('migrate');", NULL, NULL, NULL);
-  if(rc != SQLITE_OK){
-    CODEC_TRACE("sqlcipher_export failed, error code %d\n", rc);
-    goto handle_error;
-  }
-
-  rc = tdsqlite3_exec(db, set_user_version, NULL, NULL, NULL);
-  if(rc != SQLITE_OK){
-    CODEC_TRACE("set user version failed, error code %d\n", rc);
-    goto handle_error;
-  }
-
-  if( !db->autoCommit ){
-    CODEC_TRACE("cannot migrate from within a transaction");
-    goto handle_error;
-  }
-  if( db->nVdbeActive>1 ){
-    CODEC_TRACE("cannot migrate - SQL statements in progress");
-    goto handle_error;
-  }
-
-  pDest = db->aDb[0].pBt;
-  pDb = &(db->aDb[db->nDb-1]);
-  pSrc = pDb->pBt;
-
-  nRes = tdsqlite3BtreeGetOptimalReserve(pSrc); 
-  /* unset the BTS_PAGESIZE_FIXED flag to avoid SQLITE_READONLY */
-  pDest->pBt->btsFlags &= ~BTS_PAGESIZE_FIXED; 
-  rc = tdsqlite3BtreeSetPageSize(pDest, default_page_size, nRes, 0);
-  CODEC_TRACE("set btree page size to %d res %d rc %d\n", default_page_size, nRes, rc);
-  if( rc!=SQLITE_OK ) goto handle_error;
-
-  tdsqlite3CodecGetKey(db, db->nDb - 1, (void**)&keyspec, &keyspec_sz);
-  tdsqlite3CodecAttach(db, 0, keyspec, keyspec_sz);
-  
-  srcfile = tdsqlite3PagerFile(pSrc->pBt->pPager);
-  destfile = tdsqlite3PagerFile(pDest->pBt->pPager);
-
-  tdsqlite3OsClose(srcfile);
-  tdsqlite3OsClose(destfile); 
-
-#if defined(_WIN32) || defined(SQLITE_OS_WINRT)
-  CODEC_TRACE("performing windows MoveFileExA\n");
-
-  w_db_filename_sz = MultiByteToWideChar(CP_UTF8, 0, (LPCCH) db_filename, -1, NULL, 0);
-  w_db_filename = sqlcipher_malloc(w_db_filename_sz * sizeof(wchar_t));
-  w_db_filename_sz = MultiByteToWideChar(CP_UTF8, 0, (LPCCH) db_filename, -1, (const LPWSTR) w_db_filename, w_db_filename_sz);
-
-  w_migrated_db_filename_sz = MultiByteToWideChar(CP_UTF8, 0, (LPCCH) migrated_db_filename, -1, NULL, 0);
-  w_migrated_db_filename = sqlcipher_malloc(w_migrated_db_filename_sz * sizeof(wchar_t));
-  w_migrated_db_filename_sz = MultiByteToWideChar(CP_UTF8, 0, (LPCCH) migrated_db_filename, -1, (const LPWSTR) w_migrated_db_filename, w_migrated_db_filename_sz);
-
-  if(!MoveFileExW(w_migrated_db_filename, w_db_filename, MOVEFILE_REPLACE_EXISTING)) {
-    CODEC_TRACE("move error");
-    rc = SQLITE_ERROR;
-    CODEC_TRACE("error occurred while renaming %d\n", rc);
-    goto handle_error;
-  }
-#else
-  CODEC_TRACE("performing POSIX rename\n");
-  if ((rc = rename(migrated_db_filename, db_filename)) != 0) {
-    CODEC_TRACE("error occurred while renaming %d\n", rc);
-    goto handle_error;
-  }
-#endif    
-  CODEC_TRACE("renamed migration database %s to main database %s: %d\n", migrated_db_filename, db_filename, rc);
-
-  rc = tdsqlite3OsOpen(db->pVfs, migrated_db_filename, srcfile, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MAIN_DB, &oflags);
-  CODEC_TRACE("reopened migration database: %d\n", rc);
-  if( rc!=SQLITE_OK ) goto handle_error;
-
-  rc = tdsqlite3OsOpen(db->pVfs, db_filename, destfile, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_MAIN_DB, &oflags);
-  CODEC_TRACE("reopened main database: %d\n", rc);
-  if( rc!=SQLITE_OK ) goto handle_error;
-
-  tdsqlite3pager_reset(pDest->pBt->pPager);
-  CODEC_TRACE("reset pager\n");
-
-  rc = tdsqlite3_exec(db, "DETACH DATABASE migrate;", NULL, NULL, NULL);
-  CODEC_TRACE("DETACH DATABASE called %d\n", rc);
-  if(rc != SQLITE_OK) goto cleanup; 
-
-  rc = tdsqlite3OsDelete(db->pVfs, migrated_db_filename, 0);
-  CODEC_TRACE("deleted migration database: %d\n", rc);
-  if( rc!=SQLITE_OK ) goto handle_error;
-
-  tdsqlite3ResetAllSchemasOfConnection(db);
-  CODEC_TRACE("reset all schemas\n");
-
-  set_journal_mode = tdsqlite3_mprintf("PRAGMA journal_mode = %s;", journal_mode);
-  rc = tdsqlite3_exec(db, set_journal_mode, NULL, NULL, NULL); 
-  CODEC_TRACE("%s: %d\n", set_journal_mode, rc);
-  if( rc!=SQLITE_OK ) goto handle_error;
-
-  goto cleanup;
-
-handle_error:
-  CODEC_TRACE("An error occurred attempting to migrate the database - last error %d\n", rc);
-  rc = SQLITE_ERROR;
-
-cleanup:
-  if(pass) sqlcipher_free(pass, pass_sz);
-  if(attach_command) sqlcipher_free(attach_command, tdsqlite3Strlen30(attach_command)); 
-  if(migrated_db_filename) sqlcipher_free(migrated_db_filename, tdsqlite3Strlen30(migrated_db_filename)); 
-  if(set_user_version) sqlcipher_free(set_user_version, tdsqlite3Strlen30(set_user_version)); 
-  if(set_journal_mode) sqlcipher_free(set_journal_mode, tdsqlite3Strlen30(set_journal_mode)); 
-  if(journal_mode) sqlcipher_free(journal_mode, tdsqlite3Strlen30(journal_mode)); 
-  if(pragma_compat) sqlcipher_free(pragma_compat, tdsqlite3Strlen30(pragma_compat)); 
-#if defined(_WIN32) || defined(SQLITE_OS_WINRT)
-  if(w_db_filename) sqlcipher_free(w_db_filename, w_db_filename_sz);
-  if(w_migrated_db_filename) sqlcipher_free(w_migrated_db_filename, w_migrated_db_filename_sz);
-#endif
-  return rc;
-}
-
-int sqlcipher_codec_add_random(codec_ctx *ctx, const char *zRight, int random_sz){
-  const char *suffix = &zRight[random_sz-1];
-  int n = random_sz - 3; /* adjust for leading x' and tailing ' */
-  if (n > 0 &&
-      tdsqlite3StrNICmp((const char *)zRight ,"x'", 2) == 0 &&
-      tdsqlite3StrNICmp(suffix, "'", 1) == 0 &&
-      n % 2 == 0) {
-    int rc = 0;
-    int buffer_sz = n / 2;
-    unsigned char *random;
-    const unsigned char *z = (const unsigned char *)zRight + 2; /* adjust lead offset of x' */
-    CODEC_TRACE("sqlcipher_codec_add_random: using raw random blob from hex\n");
-    random = sqlcipher_malloc(buffer_sz);
-    memset(random, 0, buffer_sz);
-    cipher_hex2bin(z, n, random);
-    rc = ctx->provider->add_random(ctx->provider_ctx, random, buffer_sz);
-    sqlcipher_free(random, buffer_sz);
-    return rc;
-  }
-  return SQLITE_ERROR;
-}
-
-static void sqlcipher_profile_callback(void *file, const char *sql, tdsqlite3_uint64 run_time){
-  FILE *f = (FILE*)file;
-  double elapsed = run_time/1000000.0;
-  if(f) fprintf(f, "Elapsed time:%.3f ms - %s\n", elapsed, sql);
-}
-
-int sqlcipher_cipher_profile(tdsqlite3 *db, const char *destination){
-#if defined(SQLITE_OMIT_TRACE) || defined(SQLITE_OMIT_DEPRECATED)
-  return SQLITE_ERROR;
-#else
-  FILE *f;
-  if(tdsqlite3StrICmp(destination, "stdout") == 0){
-    f = stdout;
-  }else if(tdsqlite3StrICmp(destination, "stderr") == 0){
-    f = stderr;
-  }else if(tdsqlite3StrICmp(destination, "off") == 0){
-    f = 0;
-  }else{
-#if !defined(SQLCIPHER_PROFILE_USE_FOPEN) && (defined(_WIN32) && (__STDC_VERSION__ > 199901L) || defined(SQLITE_OS_WINRT))
-    if(fopen_s(&f, destination, "a") != 0) return SQLITE_ERROR;
-#else
-    if((f = fopen(destination, "a")) == 0) return SQLITE_ERROR;
-#endif    
-  }
-  tdsqlite3_profile(db, sqlcipher_profile_callback, f);
-  return SQLITE_OK;
-#endif
-}
-
-int sqlcipher_codec_fips_status(codec_ctx *ctx) {
-  return ctx->provider->fips_status(ctx->provider_ctx);
-}
-
-const char* sqlcipher_codec_get_provider_version(codec_ctx *ctx) {
-  return ctx->provider->get_provider_version(ctx->provider_ctx);
-}
-
-#endif
-/* END SQLCIPHER */
-
-/************** End of crypto_impl.c *****************************************/
-/************** Begin file crypto_openssl.c **********************************/
-/*
-** SQLCipher
-** http://sqlcipher.net
-**
-** Copyright (c) 2008 - 2013, ZETETIC LLC
-** All rights reserved.
-**
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are met:
-**     * Redistributions of source code must retain the above copyright
-**       notice, this list of conditions and the following disclaimer.
-**     * Redistributions in binary form must reproduce the above copyright
-**       notice, this list of conditions and the following disclaimer in the
-**       documentation and/or other materials provided with the distribution.
-**     * Neither the name of the ZETETIC LLC nor the
-**       names of its contributors may be used to endorse or promote products
-**       derived from this software without specific prior written permission.
-**
-** THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
-** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-** DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
-** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-**
-*/
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-/* #include "sqliteInt.h" */
-/* #include "crypto.h" */
-/* #include "sqlcipher.h" */
-#include <openssl/rand.h>
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-#include <openssl/hmac.h>
-#include <openssl/err.h>
-
-#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10000000L
-// HMAC_* functions returned void before 87d52468aa600e02326e13f01331e1f3b8602ed0
-#define HMAC_Init_ex_(...) (HMAC_Init_ex(__VA_ARGS__), 1)
-#define HMAC_Update_(...) (HMAC_Update(__VA_ARGS__), 1)
-#define HMAC_Final_(...) (HMAC_Final(__VA_ARGS__), 1)
-#else
-#define HMAC_Init_ex_(...) HMAC_Init_ex(__VA_ARGS__)
-#define HMAC_Update_(...) HMAC_Update(__VA_ARGS__)
-#define HMAC_Final_(...) HMAC_Final(__VA_ARGS__)
-#endif
-
-typedef struct {
-  EVP_CIPHER *evp_cipher;
-} openssl_ctx;
-
-static unsigned int openssl_external_init = 0;
-static unsigned int openssl_init_count = 0;
-
-#if (defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10100000L) || (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x20700000L)
-static HMAC_CTX *HMAC_CTX_new(void)
-{
-  HMAC_CTX *ctx = OPENSSL_malloc(sizeof(*ctx));
-  if (ctx != NULL) {
-    HMAC_CTX_init(ctx);
-  }
-  return ctx;
-}
-
-/* Per 1.1.0 (https://wiki.openssl.org/index.php/1.1_API_Changes)
-   HMAC_CTX_free should call HMAC_CTX_cleanup, then EVP_MD_CTX_Cleanup.
-   HMAC_CTX_cleanup internally calls EVP_MD_CTX_cleanup so these
-   calls are not needed. */
-static void HMAC_CTX_free(HMAC_CTX *ctx)
-{
-  if (ctx != NULL) {
-    HMAC_CTX_cleanup(ctx);
-    OPENSSL_free(ctx);
-  }
-}
-#endif
-
-static int sqlcipher_openssl_add_random(void *ctx, void *buffer, int length) {
-#ifndef SQLCIPHER_OPENSSL_NO_MUTEX_RAND
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_add_random: entering SQLCIPHER_MUTEX_PROVIDER_RAND\n");
-  tdsqlite3_mutex_enter(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER_RAND));
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_add_random: entered SQLCIPHER_MUTEX_PROVIDER_RAND\n");
-#endif
-  RAND_add(buffer, length, 0);
-#ifndef SQLCIPHER_OPENSSL_NO_MUTEX_RAND
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_add_random: leaving SQLCIPHER_MUTEX_PROVIDER_RAND\n");
-  tdsqlite3_mutex_leave(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER_RAND));
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_add_random: left SQLCIPHER_MUTEX_PROVIDER_RAND\n");
-#endif
-  return SQLITE_OK;
-}
-
-#define OPENSSL_CIPHER "aes-256-cbc"
-
-
-/* activate and initialize sqlcipher. Most importantly, this will automatically
-   intialize OpenSSL's EVP system if it hasn't already be externally. Note that 
-   this function may be called multiple times as new codecs are intiialized. 
-   Thus it performs some basic counting to ensure that only the last and final
-   sqlcipher_openssl_deactivate() will free the EVP structures. 
-*/
-static int sqlcipher_openssl_activate(void *ctx) {
-  /* initialize openssl and increment the internal init counter
-     but only if it hasn't been initalized outside of SQLCipher by this program 
-     e.g. on startup */
- 
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_activate: entering SQLCIPHER_MUTEX_PROVIDER_ACTIVATE\n");
-  tdsqlite3_mutex_enter(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER_ACTIVATE));
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_activate: entered SQLCIPHER_MUTEX_PROVIDER_ACTIVATE\n");
-
-  if(openssl_init_count == 0 && EVP_get_cipherbyname(OPENSSL_CIPHER) != NULL) {
-    /* if openssl has not yet been initialized by this library, but 
-       a call to get_cipherbyname works, then the openssl library
-       has been initialized externally already. */
-    openssl_external_init = 1;
-  }
-
-#ifdef SQLCIPHER_FIPS
-  if(!FIPS_mode()){
-    if(!FIPS_mode_set(1)){
-      unsigned long err = 0;
-      ERR_load_crypto_strings();
-#ifdef __ANDROID__
-      while((err = ERR_get_error()) != 0) {
-        __android_log_print(ANDROID_LOG_ERROR, "sqlcipher","error: %lx. %s.", err, ERR_error_string(err, NULL));
-      }
-#else
-      ERR_print_errors_fp(stderr);
-#endif
-    }
-  }
-#endif
-
-  if(openssl_init_count == 0 && openssl_external_init == 0)  {
-    /* if the library was not externally initialized, then should be now */
-#if (defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10100000L) || (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x20700000L)
-    OpenSSL_add_all_algorithms();
-#endif
-  } 
-
-  openssl_init_count++; 
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_activate: leaving SQLCIPHER_MUTEX_PROVIDER_ACTIVATE\n");
-  tdsqlite3_mutex_leave(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER_ACTIVATE));
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_activate: left SQLCIPHER_MUTEX_PROVIDER_ACTIVATE\n");
-  return SQLITE_OK;
-}
-
-/* deactivate SQLCipher, most imporantly decremeting the activation count and
-   freeing the EVP structures on the final deactivation to ensure that 
-   OpenSSL memory is cleaned up */
-static int sqlcipher_openssl_deactivate(void *ctx) {
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_deactivate: entering SQLCIPHER_MUTEX_PROVIDER_ACTIVATE\n");
-  tdsqlite3_mutex_enter(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER_ACTIVATE));
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_deactivate: entered SQLCIPHER_MUTEX_PROVIDER_ACTIVATE\n");
-  openssl_init_count--;
-
-  if(openssl_init_count == 0) {
-    if(openssl_external_init == 0) {
-    /* if OpenSSL hasn't be initialized externally, and the counter reaches zero 
-       after it's decremented, release EVP memory
-       Note: this code will only be reached if OpensSSL_add_all_algorithms()
-       is called by SQLCipher internally. This should prevent SQLCipher from 
-       "cleaning up" openssl when it was initialized externally by the program */
-#if (defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10100000L) || (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x20700000L)
-      EVP_cleanup();
-#endif
-    } else {
-      openssl_external_init = 0;
-    }
-  } 
-
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_deactivate: leaving SQLCIPHER_MUTEX_PROVIDER_ACTIVATE\n");
-  tdsqlite3_mutex_leave(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER_ACTIVATE));
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_deactivate: left SQLCIPHER_MUTEX_PROVIDER_ACTIVATE\n");
-  return SQLITE_OK;
-}
-
-static const char* sqlcipher_openssl_get_provider_name(void *ctx) {
-  return "openssl";
-}
-
-static const char* sqlcipher_openssl_get_provider_version(void *ctx) {
-  return OPENSSL_VERSION_TEXT;
-}
-
-/* generate a defined number of random bytes */
-static int sqlcipher_openssl_random (void *ctx, void *buffer, int length) {
-  int rc = 0;
-  /* concurrent calls to RAND_bytes can cause a crash under some openssl versions when a 
-     naive application doesn't use CRYPTO_set_locking_callback and
-     CRYPTO_THREADID_set_callback to ensure openssl thread safety. 
-     This is simple workaround to prevent this common crash
-     but a more proper solution is that applications setup platform-appropriate
-     thread saftey in openssl externally */
-#ifndef SQLCIPHER_OPENSSL_NO_MUTEX_RAND
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_random: entering SQLCIPHER_MUTEX_PROVIDER_RAND\n");
-  tdsqlite3_mutex_enter(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER_RAND));
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_random: entered SQLCIPHER_MUTEX_PROVIDER_RAND\n");
-#endif
-  rc = RAND_bytes((unsigned char *)buffer, length);
-#ifndef SQLCIPHER_OPENSSL_NO_MUTEX_RAND
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_random: leaving SQLCIPHER_MUTEX_PROVIDER_RAND\n");
-  tdsqlite3_mutex_leave(sqlcipher_mutex(SQLCIPHER_MUTEX_PROVIDER_RAND));
-  CODEC_TRACE_MUTEX("sqlcipher_openssl_random: left SQLCIPHER_MUTEX_PROVIDER_RAND\n");
-#endif
-  return (rc == 1) ? SQLITE_OK : SQLITE_ERROR;
-}
-
-static int sqlcipher_openssl_hmac(void *ctx, int algorithm, unsigned char *hmac_key, int key_sz, unsigned char *in, int in_sz, unsigned char *in2, int in2_sz, unsigned char *out) {
-  unsigned int outlen;
-  int rc = SQLITE_OK;
-  HMAC_CTX* hctx = NULL;
-
-  if(in == NULL) goto error;
-
-  hctx = HMAC_CTX_new();
-  if(hctx == NULL) goto error;
-
-  switch(algorithm) {
-    case SQLCIPHER_HMAC_SHA1:
-      if(!HMAC_Init_ex_(hctx, hmac_key, key_sz, EVP_sha1(), NULL)) goto error;
-      break;
-    case SQLCIPHER_HMAC_SHA256:
-      if(!HMAC_Init_ex_(hctx, hmac_key, key_sz, EVP_sha256(), NULL)) goto error;
-      break;
-    case SQLCIPHER_HMAC_SHA512:
-      if(!HMAC_Init_ex_(hctx, hmac_key, key_sz, EVP_sha512(), NULL)) goto error;
-      break;
-    default:
-      goto error;
-  }
-
-  if(!HMAC_Update_(hctx, in, in_sz)) goto error;
-  if(in2 != NULL) {
-    if(!HMAC_Update_(hctx, in2, in2_sz)) goto error;
-  }
-  if(!HMAC_Final_(hctx, out, &outlen)) goto error;
-  
-  goto cleanup;
-error:
-  rc = SQLITE_ERROR;
-cleanup:
-  if(hctx) HMAC_CTX_free(hctx);
-  return rc;
-}
-
-static int sqlcipher_openssl_kdf(void *ctx, int algorithm, const unsigned char *pass, int pass_sz, unsigned char* salt, int salt_sz, int workfactor, int key_sz, unsigned char *key) {
-  int rc = SQLITE_OK; 
-
-#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10000000L
-// PKCS5_PBKDF2_HMAC was added in 856640b54f3d22a34d6565e9c78c441a15222577 and added to the header only in 777c47acbeecf9602cc465864c9f5f2c609c989d,
-// so use PKCS5_PBKDF2_HMAC_SHA1 unconditionally if OpenSSL < 1.0.0
-  if(!PKCS5_PBKDF2_HMAC_SHA1((const char *)pass, pass_sz, salt, salt_sz, workfactor, key_sz, key)) goto error;
-#else
-  switch(algorithm) {
-    case SQLCIPHER_HMAC_SHA1:
-      if(!PKCS5_PBKDF2_HMAC((const char *)pass, pass_sz, salt, salt_sz, workfactor, EVP_sha1(), key_sz, key)) goto error;
-      break;
-    case SQLCIPHER_HMAC_SHA256:
-      if(!PKCS5_PBKDF2_HMAC((const char *)pass, pass_sz, salt, salt_sz, workfactor, EVP_sha256(), key_sz, key)) goto error;
-      break;
-    case SQLCIPHER_HMAC_SHA512:
-      if(!PKCS5_PBKDF2_HMAC((const char *)pass, pass_sz, salt, salt_sz, workfactor, EVP_sha512(), key_sz, key)) goto error;
-      break;
-    default:
-      return SQLITE_ERROR;
-  }
-#endif
-
-  goto cleanup;
-error:
-  rc = SQLITE_ERROR;
-cleanup:
-  return rc;
-}
-
-static int sqlcipher_openssl_cipher(void *ctx, int mode, unsigned char *key, int key_sz, unsigned char *iv, unsigned char *in, int in_sz, unsigned char *out) {
-  int tmp_csz, csz, rc = SQLITE_OK;
-  EVP_CIPHER_CTX* ectx = EVP_CIPHER_CTX_new();
-  if(ectx == NULL) goto error;
-  if(!EVP_CipherInit_ex(ectx, ((openssl_ctx *)ctx)->evp_cipher, NULL, NULL, NULL, mode)) goto error; 
-  if(!EVP_CIPHER_CTX_set_padding(ectx, 0)) goto error; /* no padding */
-  if(!EVP_CipherInit_ex(ectx, NULL, NULL, key, iv, mode)) goto error;
-  if(!EVP_CipherUpdate(ectx, out, &tmp_csz, in, in_sz)) goto error;
-  csz = tmp_csz;  
-  out += tmp_csz;
-  if(!EVP_CipherFinal_ex(ectx, out, &tmp_csz)) goto error;
-  csz += tmp_csz;
-  assert(in_sz == csz);
-
-  goto cleanup;
-error:
-  rc = SQLITE_ERROR;
-cleanup:
-  if(ectx) EVP_CIPHER_CTX_free(ectx);
-  return rc; 
-}
-
-static const char* sqlcipher_openssl_get_cipher(void *ctx) {
-  return OBJ_nid2sn(EVP_CIPHER_nid(((openssl_ctx *)ctx)->evp_cipher));
-}
-
-static int sqlcipher_openssl_get_key_sz(void *ctx) {
-  return EVP_CIPHER_key_length(((openssl_ctx *)ctx)->evp_cipher);
-}
-
-static int sqlcipher_openssl_get_iv_sz(void *ctx) {
-  return EVP_CIPHER_iv_length(((openssl_ctx *)ctx)->evp_cipher);
-}
-
-static int sqlcipher_openssl_get_block_sz(void *ctx) {
-  return EVP_CIPHER_block_size(((openssl_ctx *)ctx)->evp_cipher);
-}
-
-static int sqlcipher_openssl_get_hmac_sz(void *ctx, int algorithm) {
-  switch(algorithm) {
-    case SQLCIPHER_HMAC_SHA1:
-      return EVP_MD_size(EVP_sha1());
-      break;
-    case SQLCIPHER_HMAC_SHA256:
-      return EVP_MD_size(EVP_sha256());
-      break;
-    case SQLCIPHER_HMAC_SHA512:
-      return EVP_MD_size(EVP_sha512());
-      break;
-    default:
-      return 0;
-  }
-}
-
-static int sqlcipher_openssl_ctx_init(void **ctx) {
-  openssl_ctx *o_ctx;
-
-  *ctx = sqlcipher_malloc(sizeof(openssl_ctx));
-  if(*ctx == NULL) return SQLITE_NOMEM;
-  sqlcipher_openssl_activate(*ctx);
-  
-  o_ctx = (openssl_ctx *)*ctx;
-  o_ctx->evp_cipher = (EVP_CIPHER *) EVP_get_cipherbyname(OPENSSL_CIPHER);
-  return o_ctx->evp_cipher != NULL ? SQLITE_OK : SQLITE_ERROR;
-}
-
-static int sqlcipher_openssl_ctx_free(void **ctx) {
-  sqlcipher_openssl_deactivate(*ctx);
-  sqlcipher_free(*ctx, sizeof(openssl_ctx));
-  return SQLITE_OK;
-}
-
-static int sqlcipher_openssl_fips_status(void *ctx) {
-#ifdef SQLCIPHER_FIPS  
-  return FIPS_mode();
-#else
-  return 0;
-#endif
-}
-
-SQLITE_PRIVATE int sqlcipher_openssl_setup(sqlcipher_provider *p) {
-  p->activate = sqlcipher_openssl_activate;  
-  p->deactivate = sqlcipher_openssl_deactivate;
-  p->get_provider_name = sqlcipher_openssl_get_provider_name;
-  p->random = sqlcipher_openssl_random;
-  p->hmac = sqlcipher_openssl_hmac;
-  p->kdf = sqlcipher_openssl_kdf;
-  p->cipher = sqlcipher_openssl_cipher;
-  p->get_cipher = sqlcipher_openssl_get_cipher;
-  p->get_key_sz = sqlcipher_openssl_get_key_sz;
-  p->get_iv_sz = sqlcipher_openssl_get_iv_sz;
-  p->get_block_sz = sqlcipher_openssl_get_block_sz;
-  p->get_hmac_sz = sqlcipher_openssl_get_hmac_sz;
-  p->ctx_init = sqlcipher_openssl_ctx_init;
-  p->ctx_free = sqlcipher_openssl_ctx_free;
-  p->add_random = sqlcipher_openssl_add_random;
-  p->fips_status = sqlcipher_openssl_fips_status;
-  p->get_provider_version = sqlcipher_openssl_get_provider_version;
-  return SQLITE_OK;
-}
-
-void sqlcipher_activate() {
-  CODEC_TRACE_MUTEX("sqlcipher_activate: entering static master mutex\n");
-  tdsqlite3_mutex_enter(tdsqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER));
-  CODEC_TRACE_MUTEX("sqlcipher_activate: entered static master mutex\n");
-
-  /* allocate new mutexes */
-  if(sqlcipher_activate_count == 0) {
-    int i;
-    for(i = 0; i < SQLCIPHER_MUTEX_COUNT; i++) {
-      sqlcipher_static_mutex[i] = tdsqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
-    }
-  }
-
-  /* check to see if there is a provider registered at this point
-     if there no provider registered at this point, register the 
-     default provider */
-  if(sqlcipher_get_provider() == NULL) {
-    sqlcipher_provider *p = sqlcipher_malloc(sizeof(sqlcipher_provider)); 
-    sqlcipher_openssl_setup(p);
-    CODEC_TRACE("sqlcipher_activate: calling sqlcipher_register_provider(%p)\n", p);
-#ifdef SQLCIPHER_EXT
-    sqlcipher_ext_provider_setup(p);
-#endif
-    sqlcipher_register_provider(p);
-    CODEC_TRACE("sqlcipher_activate: called sqlcipher_register_provider(%p)\n",p);
-  }
-
-  sqlcipher_activate_count++; /* increment activation count */
-
-  CODEC_TRACE_MUTEX("sqlcipher_activate: leaving static master mutex\n");
-  tdsqlite3_mutex_leave(tdsqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER));
-  CODEC_TRACE_MUTEX("sqlcipher_activate: left static master mutex\n");
-}
-
-#endif
-/* END SQLCIPHER */
-
-/************** End of crypto_openssl.c **************************************/
-/************** Begin file global.c ******************************************/
-/*
-** 2008 June 13
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains definitions of global variables and constants.
-*/
-/* #include "sqliteInt.h" */
-
-/* An array to map all upper-case characters into their corresponding
-** lower-case character. 
-**
-** SQLite only considers US-ASCII (or EBCDIC) characters.  We do not
-** handle case conversions for the UTF character set since the tables
-** involved are nearly as big or bigger than SQLite itself.
-*/
-SQLITE_PRIVATE const unsigned char tdsqlite3UpperToLower[] = {
-#ifdef SQLITE_ASCII
-      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17,
-     18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
-     36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53,
-     54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 97, 98, 99,100,101,102,103,
-    104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,
-    122, 91, 92, 93, 94, 95, 96, 97, 98, 99,100,101,102,103,104,105,106,107,
-    108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,
-    126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
-    144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,
-    162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,
-    180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,
-    198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,
-    216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,
-    234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,
-    252,253,254,255
-#endif
-#ifdef SQLITE_EBCDIC
-      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, /* 0x */
-     16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 1x */
-     32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 2x */
-     48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 3x */
-     64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, /* 4x */
-     80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, /* 5x */
-     96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111, /* 6x */
-    112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, /* 7x */
-    128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143, /* 8x */
-    144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159, /* 9x */
-    160,161,162,163,164,165,166,167,168,169,170,171,140,141,142,175, /* Ax */
-    176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191, /* Bx */
-    192,129,130,131,132,133,134,135,136,137,202,203,204,205,206,207, /* Cx */
-    208,145,146,147,148,149,150,151,152,153,218,219,220,221,222,223, /* Dx */
-    224,225,162,163,164,165,166,167,168,169,234,235,236,237,238,239, /* Ex */
-    240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255, /* Fx */
-#endif
-};
-
-/*
-** The following 256 byte lookup table is used to support SQLites built-in
-** equivalents to the following standard library functions:
-**
-**   isspace()                        0x01
-**   isalpha()                        0x02
-**   isdigit()                        0x04
-**   isalnum()                        0x06
-**   isxdigit()                       0x08
-**   toupper()                        0x20
-**   SQLite identifier character      0x40
-**   Quote character                  0x80
-**
-** Bit 0x20 is set if the mapped character requires translation to upper
-** case. i.e. if the character is a lower-case ASCII character.
-** If x is a lower-case ASCII character, then its upper-case equivalent
-** is (x - 0x20). Therefore toupper() can be implemented as:
-**
-**   (x & ~(map[x]&0x20))
-**
-** The equivalent of tolower() is implemented using the tdsqlite3UpperToLower[]
-** array. tolower() is used more often than toupper() by SQLite.
-**
-** Bit 0x40 is set if the character is non-alphanumeric and can be used in an 
-** SQLite identifier.  Identifiers are alphanumerics, "_", "$", and any
-** non-ASCII UTF character. Hence the test for whether or not a character is
-** part of an identifier is 0x46.
-*/
-SQLITE_PRIVATE const unsigned char tdsqlite3CtypeMap[256] = {
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 00..07    ........ */
-  0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,  /* 08..0f    ........ */
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 10..17    ........ */
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 18..1f    ........ */
-  0x01, 0x00, 0x80, 0x00, 0x40, 0x00, 0x00, 0x80,  /* 20..27     !"#$%&' */
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 28..2f    ()*+,-./ */
-  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,  /* 30..37    01234567 */
-  0x0c, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 38..3f    89:;<=>? */
-
-  0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x02,  /* 40..47    @ABCDEFG */
-  0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,  /* 48..4f    HIJKLMNO */
-  0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,  /* 50..57    PQRSTUVW */
-  0x02, 0x02, 0x02, 0x80, 0x00, 0x00, 0x00, 0x40,  /* 58..5f    XYZ[\]^_ */
-  0x80, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x22,  /* 60..67    `abcdefg */
-  0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,  /* 68..6f    hijklmno */
-  0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,  /* 70..77    pqrstuvw */
-  0x22, 0x22, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00,  /* 78..7f    xyz{|}~. */
-
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* 80..87    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* 88..8f    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* 90..97    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* 98..9f    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* a0..a7    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* a8..af    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* b0..b7    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* b8..bf    ........ */
-
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* c0..c7    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* c8..cf    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* d0..d7    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* d8..df    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* e0..e7    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* e8..ef    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,  /* f0..f7    ........ */
-  0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40   /* f8..ff    ........ */
-};
-
-/* EVIDENCE-OF: R-02982-34736 In order to maintain full backwards
-** compatibility for legacy applications, the URI filename capability is
-** disabled by default.
-**
-** EVIDENCE-OF: R-38799-08373 URI filenames can be enabled or disabled
-** using the SQLITE_USE_URI=1 or SQLITE_USE_URI=0 compile-time options.
-**
-** EVIDENCE-OF: R-43642-56306 By default, URI handling is globally
-** disabled. The default value may be changed by compiling with the
-** SQLITE_USE_URI symbol defined.
-**
-** URI filenames are enabled by default if SQLITE_HAS_CODEC is
-** enabled.
-*/
-#ifndef SQLITE_USE_URI
-# ifdef SQLITE_HAS_CODEC
-#  define SQLITE_USE_URI 1
-# else
-#  define SQLITE_USE_URI 0
-# endif
-#endif
-
-/* EVIDENCE-OF: R-38720-18127 The default setting is determined by the
-** SQLITE_ALLOW_COVERING_INDEX_SCAN compile-time option, or is "on" if
-** that compile-time option is omitted.
-*/
-#if !defined(SQLITE_ALLOW_COVERING_INDEX_SCAN)
-# define SQLITE_ALLOW_COVERING_INDEX_SCAN 1
-#else
-# if !SQLITE_ALLOW_COVERING_INDEX_SCAN 
-#   error "Compile-time disabling of covering index scan using the\
- -DSQLITE_ALLOW_COVERING_INDEX_SCAN=0 option is deprecated.\
- Contact SQLite developers if this is a problem for you, and\
- delete this #error macro to continue with your build."
-# endif
-#endif
-
-/* The minimum PMA size is set to this value multiplied by the database
-** page size in bytes.
-*/
-#ifndef SQLITE_SORTER_PMASZ
-# define SQLITE_SORTER_PMASZ 250
-#endif
-
-/* Statement journals spill to disk when their size exceeds the following
-** threshold (in bytes). 0 means that statement journals are created and
-** written to disk immediately (the default behavior for SQLite versions
-** before 3.12.0).  -1 means always keep the entire statement journal in
-** memory.  (The statement journal is also always held entirely in memory
-** if journal_mode=MEMORY or if temp_store=MEMORY, regardless of this
-** setting.)
-*/
-#ifndef SQLITE_STMTJRNL_SPILL 
-# define SQLITE_STMTJRNL_SPILL (64*1024)
-#endif
-
-/*
-** The default lookaside-configuration, the format "SZ,N".  SZ is the
-** number of bytes in each lookaside slot (should be a multiple of 8)
-** and N is the number of slots.  The lookaside-configuration can be
-** changed as start-time using tdsqlite3_config(SQLITE_CONFIG_LOOKASIDE)
-** or at run-time for an individual database connection using
-** tdsqlite3_db_config(db, SQLITE_DBCONFIG_LOOKASIDE);
-**
-** With the two-size-lookaside enhancement, less lookaside is required.
-** The default configuration of 1200,40 actually provides 30 1200-byte slots
-** and 93 128-byte slots, which is more lookaside than is available
-** using the older 1200,100 configuration without two-size-lookaside.
-*/
-#ifndef SQLITE_DEFAULT_LOOKASIDE
-# ifdef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-#   define SQLITE_DEFAULT_LOOKASIDE 1200,100  /* 120KB of memory */
-# else
-#   define SQLITE_DEFAULT_LOOKASIDE 1200,40   /* 48KB of memory */
-# endif
-#endif
-
-
-/* The default maximum size of an in-memory database created using
-** tdsqlite3_deserialize()
-*/
-#ifndef SQLITE_MEMDB_DEFAULT_MAXSIZE
-# define SQLITE_MEMDB_DEFAULT_MAXSIZE 1073741824
-#endif
-
-/*
-** The following singleton contains the global configuration for
-** the SQLite library.
-*/
-SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config tdsqlite3Config = {
-   SQLITE_DEFAULT_MEMSTATUS,  /* bMemstat */
-   1,                         /* bCoreMutex */
-   SQLITE_THREADSAFE==1,      /* bFullMutex */
-   SQLITE_USE_URI,            /* bOpenUri */
-   SQLITE_ALLOW_COVERING_INDEX_SCAN,   /* bUseCis */
-   0,                         /* bSmallMalloc */
-   1,                         /* bExtraSchemaChecks */
-   0x7ffffffe,                /* mxStrlen */
-   0,                         /* neverCorrupt */
-   SQLITE_DEFAULT_LOOKASIDE,  /* szLookaside, nLookaside */
-   SQLITE_STMTJRNL_SPILL,     /* nStmtSpill */
-   {0,0,0,0,0,0,0,0},         /* m */
-   {0,0,0,0,0,0,0,0,0},       /* mutex */
-   {0,0,0,0,0,0,0,0,0,0,0,0,0},/* pcache2 */
-   (void*)0,                  /* pHeap */
-   0,                         /* nHeap */
-   0, 0,                      /* mnHeap, mxHeap */
-   SQLITE_DEFAULT_MMAP_SIZE,  /* szMmap */
-   SQLITE_MAX_MMAP_SIZE,      /* mxMmap */
-   (void*)0,                  /* pPage */
-   0,                         /* szPage */
-   SQLITE_DEFAULT_PCACHE_INITSZ, /* nPage */
-   0,                         /* mxParserStack */
-   0,                         /* sharedCacheEnabled */
-   SQLITE_SORTER_PMASZ,       /* szPma */
-   /* All the rest should always be initialized to zero */
-   0,                         /* isInit */
-   0,                         /* inProgress */
-   0,                         /* isMutexInit */
-   0,                         /* isMallocInit */
-   0,                         /* isPCacheInit */
-   0,                         /* nRefInitMutex */
-   0,                         /* pInitMutex */
-   0,                         /* xLog */
-   0,                         /* pLogArg */
-#ifdef SQLITE_ENABLE_SQLLOG
-   0,                         /* xSqllog */
-   0,                         /* pSqllogArg */
-#endif
-#ifdef SQLITE_VDBE_COVERAGE
-   0,                         /* xVdbeBranch */
-   0,                         /* pVbeBranchArg */
-#endif
-#ifdef SQLITE_ENABLE_DESERIALIZE
-   SQLITE_MEMDB_DEFAULT_MAXSIZE,   /* mxMemdbSize */
-#endif
-#ifndef SQLITE_UNTESTABLE
-   0,                         /* xTestCallback */
-#endif
-   0,                         /* bLocaltimeFault */
-   0x7ffffffe,                /* iOnceResetThreshold */
-   SQLITE_DEFAULT_SORTERREF_SIZE,   /* szSorterRef */
-   0,                         /* iPrngSeed */
-};
-
-/*
-** Hash table for global functions - functions common to all
-** database connections.  After initialization, this table is
-** read-only.
-*/
-SQLITE_PRIVATE FuncDefHash tdsqlite3BuiltinFunctions;
-
-#ifdef VDBE_PROFILE
-/*
-** The following performance counter can be used in place of
-** tdsqlite3Hwtime() for profiling.  This is a no-op on standard builds.
-*/
-SQLITE_PRIVATE tdsqlite3_uint64 tdsqlite3NProfileCnt = 0;
-#endif
-
-/*
-** The value of the "pending" byte must be 0x40000000 (1 byte past the
-** 1-gibabyte boundary) in a compatible database.  SQLite never uses
-** the database page that contains the pending byte.  It never attempts
-** to read or write that page.  The pending byte page is set aside
-** for use by the VFS layers as space for managing file locks.
-**
-** During testing, it is often desirable to move the pending byte to
-** a different position in the file.  This allows code that has to
-** deal with the pending byte to run on files that are much smaller
-** than 1 GiB.  The tdsqlite3_test_control() interface can be used to
-** move the pending byte.
-**
-** IMPORTANT:  Changing the pending byte to any value other than
-** 0x40000000 results in an incompatible database file format!
-** Changing the pending byte during operation will result in undefined
-** and incorrect behavior.
-*/
-#ifndef SQLITE_OMIT_WSD
-SQLITE_PRIVATE int tdsqlite3PendingByte = 0x40000000;
-#endif
-
-/* #include "opcodes.h" */
-/*
-** Properties of opcodes.  The OPFLG_INITIALIZER macro is
-** created by mkopcodeh.awk during compilation.  Data is obtained
-** from the comments following the "case OP_xxxx:" statements in
-** the vdbe.c file.  
-*/
-SQLITE_PRIVATE const unsigned char tdsqlite3OpcodeProperty[] = OPFLG_INITIALIZER;
-
-/*
-** Name of the default collating sequence
-*/
-SQLITE_PRIVATE const char tdsqlite3StrBINARY[] = "BINARY";
-
-/************** End of global.c **********************************************/
-/************** Begin file status.c ******************************************/
-/*
-** 2008 June 18
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This module implements the tdsqlite3_status() interface and related
-** functionality.
-*/
-/* #include "sqliteInt.h" */
-/************** Include vdbeInt.h in the middle of status.c ******************/
-/************** Begin file vdbeInt.h *****************************************/
-/*
-** 2003 September 6
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This is the header file for information that is private to the
-** VDBE.  This information used to all be at the top of the single
-** source code file "vdbe.c".  When that file became too big (over
-** 6000 lines long) it was split up into several smaller files and
-** this header information was factored out.
-*/
-#ifndef SQLITE_VDBEINT_H
-#define SQLITE_VDBEINT_H
-
-/*
-** The maximum number of times that a statement will try to reparse
-** itself before giving up and returning SQLITE_SCHEMA.
-*/
-#ifndef SQLITE_MAX_SCHEMA_RETRY
-# define SQLITE_MAX_SCHEMA_RETRY 50
-#endif
-
-/*
-** VDBE_DISPLAY_P4 is true or false depending on whether or not the
-** "explain" P4 display logic is enabled.
-*/
-#if !defined(SQLITE_OMIT_EXPLAIN) || !defined(NDEBUG) \
-     || defined(VDBE_PROFILE) || defined(SQLITE_DEBUG)
-# define VDBE_DISPLAY_P4 1
-#else
-# define VDBE_DISPLAY_P4 0
-#endif
-
-/*
-** SQL is translated into a sequence of instructions to be
-** executed by a virtual machine.  Each instruction is an instance
-** of the following structure.
-*/
-typedef struct VdbeOp Op;
-
-/*
-** Boolean values
-*/
-typedef unsigned Bool;
-
-/* Opaque type used by code in vdbesort.c */
-typedef struct VdbeSorter VdbeSorter;
-
-/* Elements of the linked list at Vdbe.pAuxData */
-typedef struct AuxData AuxData;
-
-/* Types of VDBE cursors */
-#define CURTYPE_BTREE       0
-#define CURTYPE_SORTER      1
-#define CURTYPE_VTAB        2
-#define CURTYPE_PSEUDO      3
-
-/*
-** A VdbeCursor is an superclass (a wrapper) for various cursor objects:
-**
-**      * A b-tree cursor
-**          -  In the main database or in an ephemeral database
-**          -  On either an index or a table
-**      * A sorter
-**      * A virtual table
-**      * A one-row "pseudotable" stored in a single register
-*/
-typedef struct VdbeCursor VdbeCursor;
-struct VdbeCursor {
-  u8 eCurType;            /* One of the CURTYPE_* values above */
-  i8 iDb;                 /* Index of cursor database in db->aDb[] (or -1) */
-  u8 nullRow;             /* True if pointing to a row with no data */
-  u8 deferredMoveto;      /* A call to tdsqlite3BtreeMoveto() is needed */
-  u8 isTable;             /* True for rowid tables.  False for indexes */
-#ifdef SQLITE_DEBUG
-  u8 seekOp;              /* Most recent seek operation on this cursor */
-  u8 wrFlag;              /* The wrFlag argument to tdsqlite3BtreeCursor() */
-#endif
-  Bool isEphemeral:1;     /* True for an ephemeral table */
-  Bool useRandomRowid:1;  /* Generate new record numbers semi-randomly */
-  Bool isOrdered:1;       /* True if the table is not BTREE_UNORDERED */
-  Bool seekHit:1;         /* See the OP_SeekHit and OP_IfNoHope opcodes */
-  Btree *pBtx;            /* Separate file holding temporary table */
-  i64 seqCount;           /* Sequence counter */
-  int *aAltMap;           /* Mapping from table to index column numbers */
-
-  /* Cached OP_Column parse information is only valid if cacheStatus matches
-  ** Vdbe.cacheCtr.  Vdbe.cacheCtr will never take on the value of
-  ** CACHE_STALE (0) and so setting cacheStatus=CACHE_STALE guarantees that
-  ** the cache is out of date. */
-  u32 cacheStatus;        /* Cache is valid if this matches Vdbe.cacheCtr */
-  int seekResult;         /* Result of previous tdsqlite3BtreeMoveto() or 0
-                          ** if there have been no prior seeks on the cursor. */
-  /* seekResult does not distinguish between "no seeks have ever occurred
-  ** on this cursor" and "the most recent seek was an exact match".
-  ** For CURTYPE_PSEUDO, seekResult is the register holding the record */
-
-  /* When a new VdbeCursor is allocated, only the fields above are zeroed.
-  ** The fields that follow are uninitialized, and must be individually
-  ** initialized prior to first use. */
-  VdbeCursor *pAltCursor; /* Associated index cursor from which to read */
-  union {
-    BtCursor *pCursor;          /* CURTYPE_BTREE or _PSEUDO.  Btree cursor */
-    tdsqlite3_vtab_cursor *pVCur; /* CURTYPE_VTAB.              Vtab cursor */
-    VdbeSorter *pSorter;        /* CURTYPE_SORTER.            Sorter object */
-  } uc;
-  KeyInfo *pKeyInfo;      /* Info about index keys needed by index cursors */
-  u32 iHdrOffset;         /* Offset to next unparsed byte of the header */
-  Pgno pgnoRoot;          /* Root page of the open btree cursor */
-  i16 nField;             /* Number of fields in the header */
-  u16 nHdrParsed;         /* Number of header fields parsed so far */
-  i64 movetoTarget;       /* Argument to the deferred tdsqlite3BtreeMoveto() */
-  u32 *aOffset;           /* Pointer to aType[nField] */
-  const u8 *aRow;         /* Data for the current row, if all on one page */
-  u32 payloadSize;        /* Total number of bytes in the record */
-  u32 szRow;              /* Byte available in aRow */
-#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
-  u64 maskUsed;           /* Mask of columns used by this cursor */
-#endif
-
-  /* 2*nField extra array elements allocated for aType[], beyond the one
-  ** static element declared in the structure.  nField total array slots for
-  ** aType[] and nField+1 array slots for aOffset[] */
-  u32 aType[1];           /* Type values record decode.  MUST BE LAST */
-};
-
-
-/*
-** A value for VdbeCursor.cacheStatus that means the cache is always invalid.
-*/
-#define CACHE_STALE 0
-
-/*
-** When a sub-program is executed (OP_Program), a structure of this type
-** is allocated to store the current value of the program counter, as
-** well as the current memory cell array and various other frame specific
-** values stored in the Vdbe struct. When the sub-program is finished, 
-** these values are copied back to the Vdbe from the VdbeFrame structure,
-** restoring the state of the VM to as it was before the sub-program
-** began executing.
-**
-** The memory for a VdbeFrame object is allocated and managed by a memory
-** cell in the parent (calling) frame. When the memory cell is deleted or
-** overwritten, the VdbeFrame object is not freed immediately. Instead, it
-** is linked into the Vdbe.pDelFrame list. The contents of the Vdbe.pDelFrame
-** list is deleted when the VM is reset in VdbeHalt(). The reason for doing
-** this instead of deleting the VdbeFrame immediately is to avoid recursive
-** calls to tdsqlite3VdbeMemRelease() when the memory cells belonging to the
-** child frame are released.
-**
-** The currently executing frame is stored in Vdbe.pFrame. Vdbe.pFrame is
-** set to NULL if the currently executing frame is the main program.
-*/
-typedef struct VdbeFrame VdbeFrame;
-struct VdbeFrame {
-  Vdbe *v;                /* VM this frame belongs to */
-  VdbeFrame *pParent;     /* Parent of this frame, or NULL if parent is main */
-  Op *aOp;                /* Program instructions for parent frame */
-  i64 *anExec;            /* Event counters from parent frame */
-  Mem *aMem;              /* Array of memory cells for parent frame */
-  VdbeCursor **apCsr;     /* Array of Vdbe cursors for parent frame */
-  u8 *aOnce;              /* Bitmask used by OP_Once */
-  void *token;            /* Copy of SubProgram.token */
-  i64 lastRowid;          /* Last insert rowid (sqlite3.lastRowid) */
-  AuxData *pAuxData;      /* Linked list of auxdata allocations */
-#if SQLITE_DEBUG
-  u32 iFrameMagic;        /* magic number for sanity checking */
-#endif
-  int nCursor;            /* Number of entries in apCsr */
-  int pc;                 /* Program Counter in parent (calling) frame */
-  int nOp;                /* Size of aOp array */
-  int nMem;               /* Number of entries in aMem */
-  int nChildMem;          /* Number of memory cells for child frame */
-  int nChildCsr;          /* Number of cursors for child frame */
-  int nChange;            /* Statement changes (Vdbe.nChange)     */
-  int nDbChange;          /* Value of db->nChange */
-};
-
-/* Magic number for sanity checking on VdbeFrame objects */
-#define SQLITE_FRAME_MAGIC 0x879fb71e
-
-/*
-** Return a pointer to the array of registers allocated for use
-** by a VdbeFrame.
-*/
-#define VdbeFrameMem(p) ((Mem *)&((u8 *)p)[ROUND8(sizeof(VdbeFrame))])
-
-/*
-** Internally, the vdbe manipulates nearly all SQL values as Mem
-** structures. Each Mem struct may cache multiple representations (string,
-** integer etc.) of the same value.
-*/
-struct tdsqlite3_value {
-  union MemValue {
-    double r;           /* Real value used when MEM_Real is set in flags */
-    i64 i;              /* Integer value used when MEM_Int is set in flags */
-    int nZero;          /* Extra zero bytes when MEM_Zero and MEM_Blob set */
-    const char *zPType; /* Pointer type when MEM_Term|MEM_Subtype|MEM_Null */
-    FuncDef *pDef;      /* Used only when flags==MEM_Agg */
-  } u;
-  u16 flags;          /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */
-  u8  enc;            /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */
-  u8  eSubtype;       /* Subtype for this value */
-  int n;              /* Number of characters in string value, excluding '\0' */
-  char *z;            /* String or BLOB value */
-  /* ShallowCopy only needs to copy the information above */
-  char *zMalloc;      /* Space to hold MEM_Str or MEM_Blob if szMalloc>0 */
-  int szMalloc;       /* Size of the zMalloc allocation */
-  u32 uTemp;          /* Transient storage for serial_type in OP_MakeRecord */
-  tdsqlite3 *db;        /* The associated database connection */
-  void (*xDel)(void*);/* Destructor for Mem.z - only valid if MEM_Dyn */
-#ifdef SQLITE_DEBUG
-  Mem *pScopyFrom;    /* This Mem is a shallow copy of pScopyFrom */
-  u16 mScopyFlags;    /* flags value immediately after the shallow copy */
-#endif
-};
-
-/*
-** Size of struct Mem not including the Mem.zMalloc member or anything that
-** follows.
-*/
-#define MEMCELLSIZE offsetof(Mem,zMalloc)
-
-/* One or more of the following flags are set to indicate the validOK
-** representations of the value stored in the Mem struct.
-**
-** If the MEM_Null flag is set, then the value is an SQL NULL value.
-** For a pointer type created using tdsqlite3_bind_pointer() or
-** tdsqlite3_result_pointer() the MEM_Term and MEM_Subtype flags are also set.
-**
-** If the MEM_Str flag is set then Mem.z points at a string representation.
-** Usually this is encoded in the same unicode encoding as the main
-** database (see below for exceptions). If the MEM_Term flag is also
-** set, then the string is nul terminated. The MEM_Int and MEM_Real 
-** flags may coexist with the MEM_Str flag.
-*/
-#define MEM_Null      0x0001   /* Value is NULL (or a pointer) */
-#define MEM_Str       0x0002   /* Value is a string */
-#define MEM_Int       0x0004   /* Value is an integer */
-#define MEM_Real      0x0008   /* Value is a real number */
-#define MEM_Blob      0x0010   /* Value is a BLOB */
-#define MEM_IntReal   0x0020   /* MEM_Int that stringifies like MEM_Real */
-#define MEM_AffMask   0x003f   /* Mask of affinity bits */
-#define MEM_FromBind  0x0040   /* Value originates from tdsqlite3_bind() */
-#define MEM_Undefined 0x0080   /* Value is undefined */
-#define MEM_Cleared   0x0100   /* NULL set by OP_Null, not from data */
-#define MEM_TypeMask  0xc1bf   /* Mask of type bits */
-
-
-/* Whenever Mem contains a valid string or blob representation, one of
-** the following flags must be set to determine the memory management
-** policy for Mem.z.  The MEM_Term flag tells us whether or not the
-** string is \000 or \u0000 terminated
-*/
-#define MEM_Term      0x0200   /* String in Mem.z is zero terminated */
-#define MEM_Dyn       0x0400   /* Need to call Mem.xDel() on Mem.z */
-#define MEM_Static    0x0800   /* Mem.z points to a static string */
-#define MEM_Ephem     0x1000   /* Mem.z points to an ephemeral string */
-#define MEM_Agg       0x2000   /* Mem.z points to an agg function context */
-#define MEM_Zero      0x4000   /* Mem.i contains count of 0s appended to blob */
-#define MEM_Subtype   0x8000   /* Mem.eSubtype is valid */
-#ifdef SQLITE_OMIT_INCRBLOB
-  #undef MEM_Zero
-  #define MEM_Zero 0x0000
-#endif
-
-/* Return TRUE if Mem X contains dynamically allocated content - anything
-** that needs to be deallocated to avoid a leak.
-*/
-#define VdbeMemDynamic(X)  \
-  (((X)->flags&(MEM_Agg|MEM_Dyn))!=0)
-
-/*
-** Clear any existing type flags from a Mem and replace them with f
-*/
-#define MemSetTypeFlag(p, f) \
-   ((p)->flags = ((p)->flags&~(MEM_TypeMask|MEM_Zero))|f)
-
-/*
-** True if Mem X is a NULL-nochng type.
-*/
-#define MemNullNochng(X) \
-  (((X)->flags&MEM_TypeMask)==(MEM_Null|MEM_Zero) \
-    && (X)->n==0 && (X)->u.nZero==0)
-
-/*
-** Return true if a memory cell is not marked as invalid.  This macro
-** is for use inside assert() statements only.
-*/
-#ifdef SQLITE_DEBUG
-#define memIsValid(M)  ((M)->flags & MEM_Undefined)==0
-#endif
-
-/*
-** Each auxiliary data pointer stored by a user defined function 
-** implementation calling tdsqlite3_set_auxdata() is stored in an instance
-** of this structure. All such structures associated with a single VM
-** are stored in a linked list headed at Vdbe.pAuxData. All are destroyed
-** when the VM is halted (if not before).
-*/
-struct AuxData {
-  int iAuxOp;                     /* Instruction number of OP_Function opcode */
-  int iAuxArg;                    /* Index of function argument. */
-  void *pAux;                     /* Aux data pointer */
-  void (*xDeleteAux)(void*);      /* Destructor for the aux data */
-  AuxData *pNextAux;              /* Next element in list */
-};
-
-/*
-** The "context" argument for an installable function.  A pointer to an
-** instance of this structure is the first argument to the routines used
-** implement the SQL functions.
-**
-** There is a typedef for this structure in sqlite.h.  So all routines,
-** even the public interface to SQLite, can use a pointer to this structure.
-** But this file is the only place where the internal details of this
-** structure are known.
-**
-** This structure is defined inside of vdbeInt.h because it uses substructures
-** (Mem) which are only defined there.
-*/
-struct tdsqlite3_context {
-  Mem *pOut;              /* The return value is stored here */
-  FuncDef *pFunc;         /* Pointer to function information */
-  Mem *pMem;              /* Memory cell used to store aggregate context */
-  Vdbe *pVdbe;            /* The VM that owns this context */
-  int iOp;                /* Instruction number of OP_Function */
-  int isError;            /* Error code returned by the function. */
-  u8 skipFlag;            /* Skip accumulator loading if true */
-  u8 argc;                /* Number of arguments */
-  tdsqlite3_value *argv[1]; /* Argument set */
-};
-
-/* A bitfield type for use inside of structures.  Always follow with :N where
-** N is the number of bits.
-*/
-typedef unsigned bft;  /* Bit Field Type */
-
-/* The ScanStatus object holds a single value for the
-** tdsqlite3_stmt_scanstatus() interface.
-*/
-typedef struct ScanStatus ScanStatus;
-struct ScanStatus {
-  int addrExplain;                /* OP_Explain for loop */
-  int addrLoop;                   /* Address of "loops" counter */
-  int addrVisit;                  /* Address of "rows visited" counter */
-  int iSelectID;                  /* The "Select-ID" for this loop */
-  LogEst nEst;                    /* Estimated output rows per loop */
-  char *zName;                    /* Name of table or index */
-};
-
-/* The DblquoteStr object holds the text of a double-quoted
-** string for a prepared statement.  A linked list of these objects
-** is constructed during statement parsing and is held on Vdbe.pDblStr.
-** When computing a normalized SQL statement for an SQL statement, that
-** list is consulted for each double-quoted identifier to see if the
-** identifier should really be a string literal.
-*/
-typedef struct DblquoteStr DblquoteStr;
-struct DblquoteStr {
-  DblquoteStr *pNextStr;   /* Next string literal in the list */
-  char z[8];               /* Dequoted value for the string */
-};
-
-/*
-** An instance of the virtual machine.  This structure contains the complete
-** state of the virtual machine.
-**
-** The "tdsqlite3_stmt" structure pointer that is returned by tdsqlite3_prepare()
-** is really a pointer to an instance of this structure.
-*/
-struct Vdbe {
-  tdsqlite3 *db;            /* The database connection that owns this statement */
-  Vdbe *pPrev,*pNext;     /* Linked list of VDBEs with the same Vdbe.db */
-  Parse *pParse;          /* Parsing context used to create this Vdbe */
-  ynVar nVar;             /* Number of entries in aVar[] */
-  u32 magic;              /* Magic number for sanity checking */
-  int nMem;               /* Number of memory locations currently allocated */
-  int nCursor;            /* Number of slots in apCsr[] */
-  u32 cacheCtr;           /* VdbeCursor row cache generation counter */
-  int pc;                 /* The program counter */
-  int rc;                 /* Value to return */
-  int nChange;            /* Number of db changes made since last reset */
-  int iStatement;         /* Statement number (or 0 if has no opened stmt) */
-  i64 iCurrentTime;       /* Value of julianday('now') for this statement */
-  i64 nFkConstraint;      /* Number of imm. FK constraints this VM */
-  i64 nStmtDefCons;       /* Number of def. constraints when stmt started */
-  i64 nStmtDefImmCons;    /* Number of def. imm constraints when stmt started */
-  Mem *aMem;              /* The memory locations */
-  Mem **apArg;            /* Arguments to currently executing user function */
-  VdbeCursor **apCsr;     /* One element of this array for each open cursor */
-  Mem *aVar;              /* Values for the OP_Variable opcode. */
-
-  /* When allocating a new Vdbe object, all of the fields below should be
-  ** initialized to zero or NULL */
-
-  Op *aOp;                /* Space to hold the virtual machine's program */
-  int nOp;                /* Number of instructions in the program */
-  int nOpAlloc;           /* Slots allocated for aOp[] */
-  Mem *aColName;          /* Column names to return */
-  Mem *pResultSet;        /* Pointer to an array of results */
-  char *zErrMsg;          /* Error message written here */
-  VList *pVList;          /* Name of variables */
-#ifndef SQLITE_OMIT_TRACE
-  i64 startTime;          /* Time when query started - used for profiling */
-#endif
-#ifdef SQLITE_DEBUG
-  int rcApp;              /* errcode set by tdsqlite3_result_error_code() */
-  u32 nWrite;             /* Number of write operations that have occurred */
-#endif
-  u16 nResColumn;         /* Number of columns in one row of the result set */
-  u8 errorAction;         /* Recovery action to do in case of an error */
-  u8 minWriteFileFormat;  /* Minimum file format for writable database files */
-  u8 prepFlags;           /* SQLITE_PREPARE_* flags */
-  bft expired:2;          /* 1: recompile VM immediately  2: when convenient */
-  bft explain:2;          /* True if EXPLAIN present on SQL command */
-  bft doingRerun:1;       /* True if rerunning after an auto-reprepare */
-  bft changeCntOn:1;      /* True to update the change-counter */
-  bft runOnlyOnce:1;      /* Automatically expire on reset */
-  bft usesStmtJournal:1;  /* True if uses a statement journal */
-  bft readOnly:1;         /* True for statements that do not write */
-  bft bIsReader:1;        /* True for statements that read */
-  yDbMask btreeMask;      /* Bitmask of db->aDb[] entries referenced */
-  yDbMask lockMask;       /* Subset of btreeMask that requires a lock */
-  u32 aCounter[7];        /* Counters used by tdsqlite3_stmt_status() */
-  char *zSql;             /* Text of the SQL statement that generated this */
-#ifdef SQLITE_ENABLE_NORMALIZE
-  char *zNormSql;         /* Normalization of the associated SQL statement */
-  DblquoteStr *pDblStr;   /* List of double-quoted string literals */
-#endif
-  void *pFree;            /* Free this when deleting the vdbe */
-  VdbeFrame *pFrame;      /* Parent frame */
-  VdbeFrame *pDelFrame;   /* List of frame objects to free on VM reset */
-  int nFrame;             /* Number of frames in pFrame list */
-  u32 expmask;            /* Binding to these vars invalidates VM */
-  SubProgram *pProgram;   /* Linked list of all sub-programs used by VM */
-  AuxData *pAuxData;      /* Linked list of auxdata allocations */
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-  i64 *anExec;            /* Number of times each op has been executed */
-  int nScan;              /* Entries in aScan[] */
-  ScanStatus *aScan;      /* Scan definitions for tdsqlite3_stmt_scanstatus() */
-#endif
-};
-
-/*
-** The following are allowed values for Vdbe.magic
-*/
-#define VDBE_MAGIC_INIT     0x16bceaa5    /* Building a VDBE program */
-#define VDBE_MAGIC_RUN      0x2df20da3    /* VDBE is ready to execute */
-#define VDBE_MAGIC_HALT     0x319c2973    /* VDBE has completed execution */
-#define VDBE_MAGIC_RESET    0x48fa9f76    /* Reset and ready to run again */
-#define VDBE_MAGIC_DEAD     0x5606c3c8    /* The VDBE has been deallocated */
-
-/*
-** Structure used to store the context required by the 
-** tdsqlite3_preupdate_*() API functions.
-*/
-struct PreUpdate {
-  Vdbe *v;
-  VdbeCursor *pCsr;               /* Cursor to read old values from */
-  int op;                         /* One of SQLITE_INSERT, UPDATE, DELETE */
-  u8 *aRecord;                    /* old.* database record */
-  KeyInfo keyinfo;
-  UnpackedRecord *pUnpacked;      /* Unpacked version of aRecord[] */
-  UnpackedRecord *pNewUnpacked;   /* Unpacked version of new.* record */
-  int iNewReg;                    /* Register for new.* values */
-  i64 iKey1;                      /* First key value passed to hook */
-  i64 iKey2;                      /* Second key value passed to hook */
-  Mem *aNew;                      /* Array of new.* values */
-  Table *pTab;                    /* Schema object being upated */          
-  Index *pPk;                     /* PK index if pTab is WITHOUT ROWID */
-};
-
-/*
-** Function prototypes
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeError(Vdbe*, const char *, ...);
-SQLITE_PRIVATE void tdsqlite3VdbeFreeCursor(Vdbe *, VdbeCursor*);
-void sqliteVdbePopStack(Vdbe*,int);
-SQLITE_PRIVATE int SQLITE_NOINLINE tdsqlite3VdbeFinishMoveto(VdbeCursor*);
-SQLITE_PRIVATE int tdsqlite3VdbeCursorMoveto(VdbeCursor**, int*);
-SQLITE_PRIVATE int tdsqlite3VdbeCursorRestore(VdbeCursor*);
-SQLITE_PRIVATE u32 tdsqlite3VdbeSerialTypeLen(u32);
-SQLITE_PRIVATE u8 tdsqlite3VdbeOneByteSerialTypeLen(u8);
-SQLITE_PRIVATE u32 tdsqlite3VdbeSerialPut(unsigned char*, Mem*, u32);
-SQLITE_PRIVATE u32 tdsqlite3VdbeSerialGet(const unsigned char*, u32, Mem*);
-SQLITE_PRIVATE void tdsqlite3VdbeDeleteAuxData(tdsqlite3*, AuxData**, int, int);
-
-int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *);
-SQLITE_PRIVATE int tdsqlite3VdbeIdxKeyCompare(tdsqlite3*,VdbeCursor*,UnpackedRecord*,int*);
-SQLITE_PRIVATE int tdsqlite3VdbeIdxRowid(tdsqlite3*, BtCursor*, i64*);
-SQLITE_PRIVATE int tdsqlite3VdbeExec(Vdbe*);
-#ifndef SQLITE_OMIT_EXPLAIN
-SQLITE_PRIVATE int tdsqlite3VdbeList(Vdbe*);
-#endif
-SQLITE_PRIVATE int tdsqlite3VdbeHalt(Vdbe*);
-SQLITE_PRIVATE int tdsqlite3VdbeChangeEncoding(Mem *, int);
-SQLITE_PRIVATE int tdsqlite3VdbeMemTooBig(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemCopy(Mem*, const Mem*);
-SQLITE_PRIVATE void tdsqlite3VdbeMemShallowCopy(Mem*, const Mem*, int);
-SQLITE_PRIVATE void tdsqlite3VdbeMemMove(Mem*, Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemNulTerminate(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemSetStr(Mem*, const char*, int, u8, void(*)(void*));
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetInt64(Mem*, i64);
-#ifdef SQLITE_OMIT_FLOATING_POINT
-# define tdsqlite3VdbeMemSetDouble tdsqlite3VdbeMemSetInt64
-#else
-SQLITE_PRIVATE   void tdsqlite3VdbeMemSetDouble(Mem*, double);
-#endif
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetPointer(Mem*, void*, const char*, void(*)(void*));
-SQLITE_PRIVATE void tdsqlite3VdbeMemInit(Mem*,tdsqlite3*,u16);
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetNull(Mem*);
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetZeroBlob(Mem*,int);
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3VdbeMemIsRowSet(const Mem*);
-#endif
-SQLITE_PRIVATE int tdsqlite3VdbeMemSetRowSet(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemMakeWriteable(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemStringify(Mem*, u8, u8);
-SQLITE_PRIVATE i64 tdsqlite3VdbeIntValue(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemIntegerify(Mem*);
-SQLITE_PRIVATE double tdsqlite3VdbeRealValue(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeBooleanValue(Mem*, int ifNull);
-SQLITE_PRIVATE void tdsqlite3VdbeIntegerAffinity(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemRealify(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemNumerify(Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeMemCast(Mem*,u8,u8);
-SQLITE_PRIVATE int tdsqlite3VdbeMemFromBtree(BtCursor*,u32,u32,Mem*);
-SQLITE_PRIVATE void tdsqlite3VdbeMemRelease(Mem *p);
-SQLITE_PRIVATE int tdsqlite3VdbeMemFinalize(Mem*, FuncDef*);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-SQLITE_PRIVATE int tdsqlite3VdbeMemAggValue(Mem*, Mem*, FuncDef*);
-#endif
-#ifndef SQLITE_OMIT_EXPLAIN
-SQLITE_PRIVATE const char *tdsqlite3OpcodeName(int);
-#endif
-SQLITE_PRIVATE int tdsqlite3VdbeMemGrow(Mem *pMem, int n, int preserve);
-SQLITE_PRIVATE int tdsqlite3VdbeMemClearAndResize(Mem *pMem, int n);
-SQLITE_PRIVATE int tdsqlite3VdbeCloseStatement(Vdbe *, int);
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3VdbeFrameIsValid(VdbeFrame*);
-#endif
-SQLITE_PRIVATE void tdsqlite3VdbeFrameMemDel(void*);      /* Destructor on Mem */
-SQLITE_PRIVATE void tdsqlite3VdbeFrameDelete(VdbeFrame*); /* Actually deletes the Frame */
-SQLITE_PRIVATE int tdsqlite3VdbeFrameRestore(VdbeFrame *);
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-SQLITE_PRIVATE void tdsqlite3VdbePreUpdateHook(Vdbe*,VdbeCursor*,int,const char*,Table*,i64,int);
-#endif
-SQLITE_PRIVATE int tdsqlite3VdbeTransferError(Vdbe *p);
-
-SQLITE_PRIVATE int tdsqlite3VdbeSorterInit(tdsqlite3 *, int, VdbeCursor *);
-SQLITE_PRIVATE void tdsqlite3VdbeSorterReset(tdsqlite3 *, VdbeSorter *);
-SQLITE_PRIVATE void tdsqlite3VdbeSorterClose(tdsqlite3 *, VdbeCursor *);
-SQLITE_PRIVATE int tdsqlite3VdbeSorterRowkey(const VdbeCursor *, Mem *);
-SQLITE_PRIVATE int tdsqlite3VdbeSorterNext(tdsqlite3 *, const VdbeCursor *);
-SQLITE_PRIVATE int tdsqlite3VdbeSorterRewind(const VdbeCursor *, int *);
-SQLITE_PRIVATE int tdsqlite3VdbeSorterWrite(const VdbeCursor *, Mem *);
-SQLITE_PRIVATE int tdsqlite3VdbeSorterCompare(const VdbeCursor *, Mem *, int, int *);
-
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE   void tdsqlite3VdbeIncrWriteCounter(Vdbe*, VdbeCursor*);
-SQLITE_PRIVATE   void tdsqlite3VdbeAssertAbortable(Vdbe*);
-#else
-# define tdsqlite3VdbeIncrWriteCounter(V,C)
-# define tdsqlite3VdbeAssertAbortable(V)
-#endif
-
-#if !defined(SQLITE_OMIT_SHARED_CACHE) 
-SQLITE_PRIVATE   void tdsqlite3VdbeEnter(Vdbe*);
-#else
-# define tdsqlite3VdbeEnter(X)
-#endif
-
-#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0
-SQLITE_PRIVATE   void tdsqlite3VdbeLeave(Vdbe*);
-#else
-# define tdsqlite3VdbeLeave(X)
-#endif
-
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE void tdsqlite3VdbeMemAboutToChange(Vdbe*,Mem*);
-SQLITE_PRIVATE int tdsqlite3VdbeCheckMemInvariants(Mem*);
-#endif
-
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-SQLITE_PRIVATE int tdsqlite3VdbeCheckFk(Vdbe *, int);
-#else
-# define tdsqlite3VdbeCheckFk(p,i) 0
-#endif
-
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE   void tdsqlite3VdbePrintSql(Vdbe*);
-SQLITE_PRIVATE   void tdsqlite3VdbeMemPrettyPrint(Mem *pMem, StrAccum *pStr);
-#endif
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_PRIVATE   int tdsqlite3VdbeMemTranslate(Mem*, u8);
-SQLITE_PRIVATE   int tdsqlite3VdbeMemHandleBom(Mem *pMem);
-#endif
-
-#ifndef SQLITE_OMIT_INCRBLOB
-SQLITE_PRIVATE   int tdsqlite3VdbeMemExpandBlob(Mem *);
-  #define ExpandBlob(P) (((P)->flags&MEM_Zero)?tdsqlite3VdbeMemExpandBlob(P):0)
-#else
-  #define tdsqlite3VdbeMemExpandBlob(x) SQLITE_OK
-  #define ExpandBlob(P) SQLITE_OK
-#endif
-
-#endif /* !defined(SQLITE_VDBEINT_H) */
-
-/************** End of vdbeInt.h *********************************************/
-/************** Continuing where we left off in status.c *********************/
-
-/*
-** Variables in which to record status information.
-*/
-#if SQLITE_PTRSIZE>4
-typedef tdsqlite3_int64 tdsqlite3StatValueType;
-#else
-typedef u32 tdsqlite3StatValueType;
-#endif
-typedef struct tdsqlite3StatType tdsqlite3StatType;
-static SQLITE_WSD struct tdsqlite3StatType {
-  tdsqlite3StatValueType nowValue[10];  /* Current value */
-  tdsqlite3StatValueType mxValue[10];   /* Maximum value */
-} tdsqlite3Stat = { {0,}, {0,} };
-
-/*
-** Elements of tdsqlite3Stat[] are protected by either the memory allocator
-** mutex, or by the pcache1 mutex.  The following array determines which.
-*/
-static const char statMutex[] = {
-  0,  /* SQLITE_STATUS_MEMORY_USED */
-  1,  /* SQLITE_STATUS_PAGECACHE_USED */
-  1,  /* SQLITE_STATUS_PAGECACHE_OVERFLOW */
-  0,  /* SQLITE_STATUS_SCRATCH_USED */
-  0,  /* SQLITE_STATUS_SCRATCH_OVERFLOW */
-  0,  /* SQLITE_STATUS_MALLOC_SIZE */
-  0,  /* SQLITE_STATUS_PARSER_STACK */
-  1,  /* SQLITE_STATUS_PAGECACHE_SIZE */
-  0,  /* SQLITE_STATUS_SCRATCH_SIZE */
-  0,  /* SQLITE_STATUS_MALLOC_COUNT */
-};
-
-
-/* The "wsdStat" macro will resolve to the status information
-** state vector.  If writable static data is unsupported on the target,
-** we have to locate the state vector at run-time.  In the more common
-** case where writable static data is supported, wsdStat can refer directly
-** to the "tdsqlite3Stat" state vector declared above.
-*/
-#ifdef SQLITE_OMIT_WSD
-# define wsdStatInit  tdsqlite3StatType *x = &GLOBAL(tdsqlite3StatType,tdsqlite3Stat)
-# define wsdStat x[0]
-#else
-# define wsdStatInit
-# define wsdStat tdsqlite3Stat
-#endif
-
-/*
-** Return the current value of a status parameter.  The caller must
-** be holding the appropriate mutex.
-*/
-SQLITE_PRIVATE tdsqlite3_int64 tdsqlite3StatusValue(int op){
-  wsdStatInit;
-  assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
-  assert( op>=0 && op<ArraySize(statMutex) );
-  assert( tdsqlite3_mutex_held(statMutex[op] ? tdsqlite3Pcache1Mutex()
-                                           : tdsqlite3MallocMutex()) );
-  return wsdStat.nowValue[op];
-}
-
-/*
-** Add N to the value of a status record.  The caller must hold the
-** appropriate mutex.  (Locking is checked by assert()).
-**
-** The StatusUp() routine can accept positive or negative values for N.
-** The value of N is added to the current status value and the high-water
-** mark is adjusted if necessary.
-**
-** The StatusDown() routine lowers the current value by N.  The highwater
-** mark is unchanged.  N must be non-negative for StatusDown().
-*/
-SQLITE_PRIVATE void tdsqlite3StatusUp(int op, int N){
-  wsdStatInit;
-  assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
-  assert( op>=0 && op<ArraySize(statMutex) );
-  assert( tdsqlite3_mutex_held(statMutex[op] ? tdsqlite3Pcache1Mutex()
-                                           : tdsqlite3MallocMutex()) );
-  wsdStat.nowValue[op] += N;
-  if( wsdStat.nowValue[op]>wsdStat.mxValue[op] ){
-    wsdStat.mxValue[op] = wsdStat.nowValue[op];
-  }
-}
-SQLITE_PRIVATE void tdsqlite3StatusDown(int op, int N){
-  wsdStatInit;
-  assert( N>=0 );
-  assert( op>=0 && op<ArraySize(statMutex) );
-  assert( tdsqlite3_mutex_held(statMutex[op] ? tdsqlite3Pcache1Mutex()
-                                           : tdsqlite3MallocMutex()) );
-  assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
-  wsdStat.nowValue[op] -= N;
-}
-
-/*
-** Adjust the highwater mark if necessary.
-** The caller must hold the appropriate mutex.
-*/
-SQLITE_PRIVATE void tdsqlite3StatusHighwater(int op, int X){
-  tdsqlite3StatValueType newValue;
-  wsdStatInit;
-  assert( X>=0 );
-  newValue = (tdsqlite3StatValueType)X;
-  assert( op>=0 && op<ArraySize(wsdStat.nowValue) );
-  assert( op>=0 && op<ArraySize(statMutex) );
-  assert( tdsqlite3_mutex_held(statMutex[op] ? tdsqlite3Pcache1Mutex()
-                                           : tdsqlite3MallocMutex()) );
-  assert( op==SQLITE_STATUS_MALLOC_SIZE
-          || op==SQLITE_STATUS_PAGECACHE_SIZE
-          || op==SQLITE_STATUS_PARSER_STACK );
-  if( newValue>wsdStat.mxValue[op] ){
-    wsdStat.mxValue[op] = newValue;
-  }
-}
-
-/*
-** Query status information.
-*/
-SQLITE_API int tdsqlite3_status64(
-  int op,
-  tdsqlite3_int64 *pCurrent,
-  tdsqlite3_int64 *pHighwater,
-  int resetFlag
-){
-  tdsqlite3_mutex *pMutex;
-  wsdStatInit;
-  if( op<0 || op>=ArraySize(wsdStat.nowValue) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  pMutex = statMutex[op] ? tdsqlite3Pcache1Mutex() : tdsqlite3MallocMutex();
-  tdsqlite3_mutex_enter(pMutex);
-  *pCurrent = wsdStat.nowValue[op];
-  *pHighwater = wsdStat.mxValue[op];
-  if( resetFlag ){
-    wsdStat.mxValue[op] = wsdStat.nowValue[op];
-  }
-  tdsqlite3_mutex_leave(pMutex);
-  (void)pMutex;  /* Prevent warning when SQLITE_THREADSAFE=0 */
-  return SQLITE_OK;
-}
-SQLITE_API int tdsqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){
-  tdsqlite3_int64 iCur = 0, iHwtr = 0;
-  int rc;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  rc = tdsqlite3_status64(op, &iCur, &iHwtr, resetFlag);
-  if( rc==0 ){
-    *pCurrent = (int)iCur;
-    *pHighwater = (int)iHwtr;
-  }
-  return rc;
-}
-
-/*
-** Return the number of LookasideSlot elements on the linked list
-*/
-static u32 countLookasideSlots(LookasideSlot *p){
-  u32 cnt = 0;
-  while( p ){
-    p = p->pNext;
-    cnt++;
-  }
-  return cnt;
-}
-
-/*
-** Count the number of slots of lookaside memory that are outstanding
-*/
-SQLITE_PRIVATE int tdsqlite3LookasideUsed(tdsqlite3 *db, int *pHighwater){
-  u32 nInit = countLookasideSlots(db->lookaside.pInit);
-  u32 nFree = countLookasideSlots(db->lookaside.pFree);
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-  nInit += countLookasideSlots(db->lookaside.pSmallInit);
-  nFree += countLookasideSlots(db->lookaside.pSmallFree);
-#endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */
-  if( pHighwater ) *pHighwater = db->lookaside.nSlot - nInit;
-  return db->lookaside.nSlot - (nInit+nFree);
-}
-
-/*
-** Query status information for a single database connection
-*/
-SQLITE_API int tdsqlite3_db_status(
-  tdsqlite3 *db,          /* The database connection whose status is desired */
-  int op,               /* Status verb */
-  int *pCurrent,        /* Write current value here */
-  int *pHighwater,      /* Write high-water mark here */
-  int resetFlag         /* Reset high-water mark if true */
-){
-  int rc = SQLITE_OK;   /* Return code */
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || pCurrent==0|| pHighwater==0 ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  switch( op ){
-    case SQLITE_DBSTATUS_LOOKASIDE_USED: {
-      *pCurrent = tdsqlite3LookasideUsed(db, pHighwater);
-      if( resetFlag ){
-        LookasideSlot *p = db->lookaside.pFree;
-        if( p ){
-          while( p->pNext ) p = p->pNext;
-          p->pNext = db->lookaside.pInit;
-          db->lookaside.pInit = db->lookaside.pFree;
-          db->lookaside.pFree = 0;
-        }
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-        p = db->lookaside.pSmallFree;
-        if( p ){
-          while( p->pNext ) p = p->pNext;
-          p->pNext = db->lookaside.pSmallInit;
-          db->lookaside.pSmallInit = db->lookaside.pSmallFree;
-          db->lookaside.pSmallFree = 0;
-        }
-#endif
-      }
-      break;
-    }
-
-    case SQLITE_DBSTATUS_LOOKASIDE_HIT:
-    case SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE:
-    case SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL: {
-      testcase( op==SQLITE_DBSTATUS_LOOKASIDE_HIT );
-      testcase( op==SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE );
-      testcase( op==SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL );
-      assert( (op-SQLITE_DBSTATUS_LOOKASIDE_HIT)>=0 );
-      assert( (op-SQLITE_DBSTATUS_LOOKASIDE_HIT)<3 );
-      *pCurrent = 0;
-      *pHighwater = db->lookaside.anStat[op - SQLITE_DBSTATUS_LOOKASIDE_HIT];
-      if( resetFlag ){
-        db->lookaside.anStat[op - SQLITE_DBSTATUS_LOOKASIDE_HIT] = 0;
-      }
-      break;
-    }
-
-    /* 
-    ** Return an approximation for the amount of memory currently used
-    ** by all pagers associated with the given database connection.  The
-    ** highwater mark is meaningless and is returned as zero.
-    */
-    case SQLITE_DBSTATUS_CACHE_USED_SHARED:
-    case SQLITE_DBSTATUS_CACHE_USED: {
-      int totalUsed = 0;
-      int i;
-      tdsqlite3BtreeEnterAll(db);
-      for(i=0; i<db->nDb; i++){
-        Btree *pBt = db->aDb[i].pBt;
-        if( pBt ){
-          Pager *pPager = tdsqlite3BtreePager(pBt);
-          int nByte = tdsqlite3PagerMemUsed(pPager);
-          if( op==SQLITE_DBSTATUS_CACHE_USED_SHARED ){
-            nByte = nByte / tdsqlite3BtreeConnectionCount(pBt);
-          }
-          totalUsed += nByte;
-        }
-      }
-      tdsqlite3BtreeLeaveAll(db);
-      *pCurrent = totalUsed;
-      *pHighwater = 0;
-      break;
-    }
-
-    /*
-    ** *pCurrent gets an accurate estimate of the amount of memory used
-    ** to store the schema for all databases (main, temp, and any ATTACHed
-    ** databases.  *pHighwater is set to zero.
-    */
-    case SQLITE_DBSTATUS_SCHEMA_USED: {
-      int i;                      /* Used to iterate through schemas */
-      int nByte = 0;              /* Used to accumulate return value */
-
-      tdsqlite3BtreeEnterAll(db);
-      db->pnBytesFreed = &nByte;
-      for(i=0; i<db->nDb; i++){
-        Schema *pSchema = db->aDb[i].pSchema;
-        if( ALWAYS(pSchema!=0) ){
-          HashElem *p;
-
-          nByte += tdsqlite3GlobalConfig.m.xRoundup(sizeof(HashElem)) * (
-              pSchema->tblHash.count 
-            + pSchema->trigHash.count
-            + pSchema->idxHash.count
-            + pSchema->fkeyHash.count
-          );
-          nByte += tdsqlite3_msize(pSchema->tblHash.ht);
-          nByte += tdsqlite3_msize(pSchema->trigHash.ht);
-          nByte += tdsqlite3_msize(pSchema->idxHash.ht);
-          nByte += tdsqlite3_msize(pSchema->fkeyHash.ht);
-
-          for(p=sqliteHashFirst(&pSchema->trigHash); p; p=sqliteHashNext(p)){
-            tdsqlite3DeleteTrigger(db, (Trigger*)sqliteHashData(p));
-          }
-          for(p=sqliteHashFirst(&pSchema->tblHash); p; p=sqliteHashNext(p)){
-            tdsqlite3DeleteTable(db, (Table *)sqliteHashData(p));
-          }
-        }
-      }
-      db->pnBytesFreed = 0;
-      tdsqlite3BtreeLeaveAll(db);
-
-      *pHighwater = 0;
-      *pCurrent = nByte;
-      break;
-    }
-
-    /*
-    ** *pCurrent gets an accurate estimate of the amount of memory used
-    ** to store all prepared statements.
-    ** *pHighwater is set to zero.
-    */
-    case SQLITE_DBSTATUS_STMT_USED: {
-      struct Vdbe *pVdbe;         /* Used to iterate through VMs */
-      int nByte = 0;              /* Used to accumulate return value */
-
-      db->pnBytesFreed = &nByte;
-      for(pVdbe=db->pVdbe; pVdbe; pVdbe=pVdbe->pNext){
-        tdsqlite3VdbeClearObject(db, pVdbe);
-        tdsqlite3DbFree(db, pVdbe);
-      }
-      db->pnBytesFreed = 0;
-
-      *pHighwater = 0;  /* IMP: R-64479-57858 */
-      *pCurrent = nByte;
-
-      break;
-    }
-
-    /*
-    ** Set *pCurrent to the total cache hits or misses encountered by all
-    ** pagers the database handle is connected to. *pHighwater is always set 
-    ** to zero.
-    */
-    case SQLITE_DBSTATUS_CACHE_SPILL:
-      op = SQLITE_DBSTATUS_CACHE_WRITE+1;
-      /* Fall through into the next case */
-    case SQLITE_DBSTATUS_CACHE_HIT:
-    case SQLITE_DBSTATUS_CACHE_MISS:
-    case SQLITE_DBSTATUS_CACHE_WRITE:{
-      int i;
-      int nRet = 0;
-      assert( SQLITE_DBSTATUS_CACHE_MISS==SQLITE_DBSTATUS_CACHE_HIT+1 );
-      assert( SQLITE_DBSTATUS_CACHE_WRITE==SQLITE_DBSTATUS_CACHE_HIT+2 );
-
-      for(i=0; i<db->nDb; i++){
-        if( db->aDb[i].pBt ){
-          Pager *pPager = tdsqlite3BtreePager(db->aDb[i].pBt);
-          tdsqlite3PagerCacheStat(pPager, op, resetFlag, &nRet);
-        }
-      }
-      *pHighwater = 0; /* IMP: R-42420-56072 */
-                       /* IMP: R-54100-20147 */
-                       /* IMP: R-29431-39229 */
-      *pCurrent = nRet;
-      break;
-    }
-
-    /* Set *pCurrent to non-zero if there are unresolved deferred foreign
-    ** key constraints.  Set *pCurrent to zero if all foreign key constraints
-    ** have been satisfied.  The *pHighwater is always set to zero.
-    */
-    case SQLITE_DBSTATUS_DEFERRED_FKS: {
-      *pHighwater = 0;  /* IMP: R-11967-56545 */
-      *pCurrent = db->nDeferredImmCons>0 || db->nDeferredCons>0;
-      break;
-    }
-
-    default: {
-      rc = SQLITE_ERROR;
-    }
-  }
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/************** End of status.c **********************************************/
-/************** Begin file date.c ********************************************/
-/*
-** 2003 October 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the C functions that implement date and time
-** functions for SQLite.  
-**
-** There is only one exported symbol in this file - the function
-** tdsqlite3RegisterDateTimeFunctions() found at the bottom of the file.
-** All other code has file scope.
-**
-** SQLite processes all times and dates as julian day numbers.  The
-** dates and times are stored as the number of days since noon
-** in Greenwich on November 24, 4714 B.C. according to the Gregorian
-** calendar system. 
-**
-** 1970-01-01 00:00:00 is JD 2440587.5
-** 2000-01-01 00:00:00 is JD 2451544.5
-**
-** This implementation requires years to be expressed as a 4-digit number
-** which means that only dates between 0000-01-01 and 9999-12-31 can
-** be represented, even though julian day numbers allow a much wider
-** range of dates.
-**
-** The Gregorian calendar system is used for all dates and times,
-** even those that predate the Gregorian calendar.  Historians usually
-** use the julian calendar for dates prior to 1582-10-15 and for some
-** dates afterwards, depending on locale.  Beware of this difference.
-**
-** The conversion algorithms are implemented based on descriptions
-** in the following text:
-**
-**      Jean Meeus
-**      Astronomical Algorithms, 2nd Edition, 1998
-**      ISBN 0-943396-61-1
-**      Willmann-Bell, Inc
-**      Richmond, Virginia (USA)
-*/
-/* #include "sqliteInt.h" */
-/* #include <stdlib.h> */
-/* #include <assert.h> */
-#include <time.h>
-
-#ifndef SQLITE_OMIT_DATETIME_FUNCS
-
-/*
-** The MSVC CRT on Windows CE may not have a localtime() function.
-** So declare a substitute.  The substitute function itself is
-** defined in "os_win.c".
-*/
-#if !defined(SQLITE_OMIT_LOCALTIME) && defined(_WIN32_WCE) && \
-    (!defined(SQLITE_MSVC_LOCALTIME_API) || !SQLITE_MSVC_LOCALTIME_API)
-struct tm *__cdecl localtime(const time_t *);
-#endif
-
-/*
-** A structure for holding a single date and time.
-*/
-typedef struct DateTime DateTime;
-struct DateTime {
-  tdsqlite3_int64 iJD;  /* The julian day number times 86400000 */
-  int Y, M, D;        /* Year, month, and day */
-  int h, m;           /* Hour and minutes */
-  int tz;             /* Timezone offset in minutes */
-  double s;           /* Seconds */
-  char validJD;       /* True (1) if iJD is valid */
-  char rawS;          /* Raw numeric value stored in s */
-  char validYMD;      /* True (1) if Y,M,D are valid */
-  char validHMS;      /* True (1) if h,m,s are valid */
-  char validTZ;       /* True (1) if tz is valid */
-  char tzSet;         /* Timezone was set explicitly */
-  char isError;       /* An overflow has occurred */
-};
-
-
-/*
-** Convert zDate into one or more integers according to the conversion
-** specifier zFormat.
-**
-** zFormat[] contains 4 characters for each integer converted, except for
-** the last integer which is specified by three characters.  The meaning
-** of a four-character format specifiers ABCD is:
-**
-**    A:   number of digits to convert.  Always "2" or "4".
-**    B:   minimum value.  Always "0" or "1".
-**    C:   maximum value, decoded as:
-**           a:  12
-**           b:  14
-**           c:  24
-**           d:  31
-**           e:  59
-**           f:  9999
-**    D:   the separator character, or \000 to indicate this is the
-**         last number to convert.
-**
-** Example:  To translate an ISO-8601 date YYYY-MM-DD, the format would
-** be "40f-21a-20c".  The "40f-" indicates the 4-digit year followed by "-".
-** The "21a-" indicates the 2-digit month followed by "-".  The "20c" indicates
-** the 2-digit day which is the last integer in the set.
-**
-** The function returns the number of successful conversions.
-*/
-static int getDigits(const char *zDate, const char *zFormat, ...){
-  /* The aMx[] array translates the 3rd character of each format
-  ** spec into a max size:    a   b   c   d   e     f */
-  static const u16 aMx[] = { 12, 14, 24, 31, 59, 9999 };
-  va_list ap;
-  int cnt = 0;
-  char nextC;
-  va_start(ap, zFormat);
-  do{
-    char N = zFormat[0] - '0';
-    char min = zFormat[1] - '0';
-    int val = 0;
-    u16 max;
-
-    assert( zFormat[2]>='a' && zFormat[2]<='f' );
-    max = aMx[zFormat[2] - 'a'];
-    nextC = zFormat[3];
-    val = 0;
-    while( N-- ){
-      if( !tdsqlite3Isdigit(*zDate) ){
-        goto end_getDigits;
-      }
-      val = val*10 + *zDate - '0';
-      zDate++;
-    }
-    if( val<(int)min || val>(int)max || (nextC!=0 && nextC!=*zDate) ){
-      goto end_getDigits;
-    }
-    *va_arg(ap,int*) = val;
-    zDate++;
-    cnt++;
-    zFormat += 4;
-  }while( nextC );
-end_getDigits:
-  va_end(ap);
-  return cnt;
-}
-
-/*
-** Parse a timezone extension on the end of a date-time.
-** The extension is of the form:
-**
-**        (+/-)HH:MM
-**
-** Or the "zulu" notation:
-**
-**        Z
-**
-** If the parse is successful, write the number of minutes
-** of change in p->tz and return 0.  If a parser error occurs,
-** return non-zero.
-**
-** A missing specifier is not considered an error.
-*/
-static int parseTimezone(const char *zDate, DateTime *p){
-  int sgn = 0;
-  int nHr, nMn;
-  int c;
-  while( tdsqlite3Isspace(*zDate) ){ zDate++; }
-  p->tz = 0;
-  c = *zDate;
-  if( c=='-' ){
-    sgn = -1;
-  }else if( c=='+' ){
-    sgn = +1;
-  }else if( c=='Z' || c=='z' ){
-    zDate++;
-    goto zulu_time;
-  }else{
-    return c!=0;
-  }
-  zDate++;
-  if( getDigits(zDate, "20b:20e", &nHr, &nMn)!=2 ){
-    return 1;
-  }
-  zDate += 5;
-  p->tz = sgn*(nMn + nHr*60);
-zulu_time:
-  while( tdsqlite3Isspace(*zDate) ){ zDate++; }
-  p->tzSet = 1;
-  return *zDate!=0;
-}
-
-/*
-** Parse times of the form HH:MM or HH:MM:SS or HH:MM:SS.FFFF.
-** The HH, MM, and SS must each be exactly 2 digits.  The
-** fractional seconds FFFF can be one or more digits.
-**
-** Return 1 if there is a parsing error and 0 on success.
-*/
-static int parseHhMmSs(const char *zDate, DateTime *p){
-  int h, m, s;
-  double ms = 0.0;
-  if( getDigits(zDate, "20c:20e", &h, &m)!=2 ){
-    return 1;
-  }
-  zDate += 5;
-  if( *zDate==':' ){
-    zDate++;
-    if( getDigits(zDate, "20e", &s)!=1 ){
-      return 1;
-    }
-    zDate += 2;
-    if( *zDate=='.' && tdsqlite3Isdigit(zDate[1]) ){
-      double rScale = 1.0;
-      zDate++;
-      while( tdsqlite3Isdigit(*zDate) ){
-        ms = ms*10.0 + *zDate - '0';
-        rScale *= 10.0;
-        zDate++;
-      }
-      ms /= rScale;
-    }
-  }else{
-    s = 0;
-  }
-  p->validJD = 0;
-  p->rawS = 0;
-  p->validHMS = 1;
-  p->h = h;
-  p->m = m;
-  p->s = s + ms;
-  if( parseTimezone(zDate, p) ) return 1;
-  p->validTZ = (p->tz!=0)?1:0;
-  return 0;
-}
-
-/*
-** Put the DateTime object into its error state.
-*/
-static void datetimeError(DateTime *p){
-  memset(p, 0, sizeof(*p));
-  p->isError = 1;
-}
-
-/*
-** Convert from YYYY-MM-DD HH:MM:SS to julian day.  We always assume
-** that the YYYY-MM-DD is according to the Gregorian calendar.
-**
-** Reference:  Meeus page 61
-*/
-static void computeJD(DateTime *p){
-  int Y, M, D, A, B, X1, X2;
-
-  if( p->validJD ) return;
-  if( p->validYMD ){
-    Y = p->Y;
-    M = p->M;
-    D = p->D;
-  }else{
-    Y = 2000;  /* If no YMD specified, assume 2000-Jan-01 */
-    M = 1;
-    D = 1;
-  }
-  if( Y<-4713 || Y>9999 || p->rawS ){
-    datetimeError(p);
-    return;
-  }
-  if( M<=2 ){
-    Y--;
-    M += 12;
-  }
-  A = Y/100;
-  B = 2 - A + (A/4);
-  X1 = 36525*(Y+4716)/100;
-  X2 = 306001*(M+1)/10000;
-  p->iJD = (tdsqlite3_int64)((X1 + X2 + D + B - 1524.5 ) * 86400000);
-  p->validJD = 1;
-  if( p->validHMS ){
-    p->iJD += p->h*3600000 + p->m*60000 + (tdsqlite3_int64)(p->s*1000);
-    if( p->validTZ ){
-      p->iJD -= p->tz*60000;
-      p->validYMD = 0;
-      p->validHMS = 0;
-      p->validTZ = 0;
-    }
-  }
-}
-
-/*
-** Parse dates of the form
-**
-**     YYYY-MM-DD HH:MM:SS.FFF
-**     YYYY-MM-DD HH:MM:SS
-**     YYYY-MM-DD HH:MM
-**     YYYY-MM-DD
-**
-** Write the result into the DateTime structure and return 0
-** on success and 1 if the input string is not a well-formed
-** date.
-*/
-static int parseYyyyMmDd(const char *zDate, DateTime *p){
-  int Y, M, D, neg;
-
-  if( zDate[0]=='-' ){
-    zDate++;
-    neg = 1;
-  }else{
-    neg = 0;
-  }
-  if( getDigits(zDate, "40f-21a-21d", &Y, &M, &D)!=3 ){
-    return 1;
-  }
-  zDate += 10;
-  while( tdsqlite3Isspace(*zDate) || 'T'==*(u8*)zDate ){ zDate++; }
-  if( parseHhMmSs(zDate, p)==0 ){
-    /* We got the time */
-  }else if( *zDate==0 ){
-    p->validHMS = 0;
-  }else{
-    return 1;
-  }
-  p->validJD = 0;
-  p->validYMD = 1;
-  p->Y = neg ? -Y : Y;
-  p->M = M;
-  p->D = D;
-  if( p->validTZ ){
-    computeJD(p);
-  }
-  return 0;
-}
-
-/*
-** Set the time to the current time reported by the VFS.
-**
-** Return the number of errors.
-*/
-static int setDateTimeToCurrent(tdsqlite3_context *context, DateTime *p){
-  p->iJD = tdsqlite3StmtCurrentTime(context);
-  if( p->iJD>0 ){
-    p->validJD = 1;
-    return 0;
-  }else{
-    return 1;
-  }
-}
-
-/*
-** Input "r" is a numeric quantity which might be a julian day number,
-** or the number of seconds since 1970.  If the value if r is within
-** range of a julian day number, install it as such and set validJD.
-** If the value is a valid unix timestamp, put it in p->s and set p->rawS.
-*/
-static void setRawDateNumber(DateTime *p, double r){
-  p->s = r;
-  p->rawS = 1;
-  if( r>=0.0 && r<5373484.5 ){
-    p->iJD = (tdsqlite3_int64)(r*86400000.0 + 0.5);
-    p->validJD = 1;
-  }
-}
-
-/*
-** Attempt to parse the given string into a julian day number.  Return
-** the number of errors.
-**
-** The following are acceptable forms for the input string:
-**
-**      YYYY-MM-DD HH:MM:SS.FFF  +/-HH:MM
-**      DDDD.DD 
-**      now
-**
-** In the first form, the +/-HH:MM is always optional.  The fractional
-** seconds extension (the ".FFF") is optional.  The seconds portion
-** (":SS.FFF") is option.  The year and date can be omitted as long
-** as there is a time string.  The time string can be omitted as long
-** as there is a year and date.
-*/
-static int parseDateOrTime(
-  tdsqlite3_context *context, 
-  const char *zDate, 
-  DateTime *p
-){
-  double r;
-  if( parseYyyyMmDd(zDate,p)==0 ){
-    return 0;
-  }else if( parseHhMmSs(zDate, p)==0 ){
-    return 0;
-  }else if( tdsqlite3StrICmp(zDate,"now")==0 && tdsqlite3NotPureFunc(context) ){
-    return setDateTimeToCurrent(context, p);
-  }else if( tdsqlite3AtoF(zDate, &r, tdsqlite3Strlen30(zDate), SQLITE_UTF8)>0 ){
-    setRawDateNumber(p, r);
-    return 0;
-  }
-  return 1;
-}
-
-/* The julian day number for 9999-12-31 23:59:59.999 is 5373484.4999999.
-** Multiplying this by 86400000 gives 464269060799999 as the maximum value
-** for DateTime.iJD.
-**
-** But some older compilers (ex: gcc 4.2.1 on older Macs) cannot deal with 
-** such a large integer literal, so we have to encode it.
-*/
-#define INT_464269060799999  ((((i64)0x1a640)<<32)|0x1072fdff)
-
-/*
-** Return TRUE if the given julian day number is within range.
-**
-** The input is the JulianDay times 86400000.
-*/
-static int validJulianDay(tdsqlite3_int64 iJD){
-  return iJD>=0 && iJD<=INT_464269060799999;
-}
-
-/*
-** Compute the Year, Month, and Day from the julian day number.
-*/
-static void computeYMD(DateTime *p){
-  int Z, A, B, C, D, E, X1;
-  if( p->validYMD ) return;
-  if( !p->validJD ){
-    p->Y = 2000;
-    p->M = 1;
-    p->D = 1;
-  }else if( !validJulianDay(p->iJD) ){
-    datetimeError(p);
-    return;
-  }else{
-    Z = (int)((p->iJD + 43200000)/86400000);
-    A = (int)((Z - 1867216.25)/36524.25);
-    A = Z + 1 + A - (A/4);
-    B = A + 1524;
-    C = (int)((B - 122.1)/365.25);
-    D = (36525*(C&32767))/100;
-    E = (int)((B-D)/30.6001);
-    X1 = (int)(30.6001*E);
-    p->D = B - D - X1;
-    p->M = E<14 ? E-1 : E-13;
-    p->Y = p->M>2 ? C - 4716 : C - 4715;
-  }
-  p->validYMD = 1;
-}
-
-/*
-** Compute the Hour, Minute, and Seconds from the julian day number.
-*/
-static void computeHMS(DateTime *p){
-  int s;
-  if( p->validHMS ) return;
-  computeJD(p);
-  s = (int)((p->iJD + 43200000) % 86400000);
-  p->s = s/1000.0;
-  s = (int)p->s;
-  p->s -= s;
-  p->h = s/3600;
-  s -= p->h*3600;
-  p->m = s/60;
-  p->s += s - p->m*60;
-  p->rawS = 0;
-  p->validHMS = 1;
-}
-
-/*
-** Compute both YMD and HMS
-*/
-static void computeYMD_HMS(DateTime *p){
-  computeYMD(p);
-  computeHMS(p);
-}
-
-/*
-** Clear the YMD and HMS and the TZ
-*/
-static void clearYMD_HMS_TZ(DateTime *p){
-  p->validYMD = 0;
-  p->validHMS = 0;
-  p->validTZ = 0;
-}
-
-#ifndef SQLITE_OMIT_LOCALTIME
-/*
-** On recent Windows platforms, the localtime_s() function is available
-** as part of the "Secure CRT". It is essentially equivalent to 
-** localtime_r() available under most POSIX platforms, except that the 
-** order of the parameters is reversed.
-**
-** See http://msdn.microsoft.com/en-us/library/a442x3ye(VS.80).aspx.
-**
-** If the user has not indicated to use localtime_r() or localtime_s()
-** already, check for an MSVC build environment that provides 
-** localtime_s().
-*/
-#if !HAVE_LOCALTIME_R && !HAVE_LOCALTIME_S \
-    && defined(_MSC_VER) && defined(_CRT_INSECURE_DEPRECATE)
-#undef  HAVE_LOCALTIME_S
-#define HAVE_LOCALTIME_S 1
-#endif
-
-/*
-** The following routine implements the rough equivalent of localtime_r()
-** using whatever operating-system specific localtime facility that
-** is available.  This routine returns 0 on success and
-** non-zero on any kind of error.
-**
-** If the tdsqlite3GlobalConfig.bLocaltimeFault variable is true then this
-** routine will always fail.
-**
-** EVIDENCE-OF: R-62172-00036 In this implementation, the standard C
-** library function localtime_r() is used to assist in the calculation of
-** local time.
-*/
-static int osLocaltime(time_t *t, struct tm *pTm){
-  int rc;
-#if !HAVE_LOCALTIME_R && !HAVE_LOCALTIME_S
-  struct tm *pX;
-#if SQLITE_THREADSAFE>0
-  tdsqlite3_mutex *mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
-#endif
-  tdsqlite3_mutex_enter(mutex);
-  pX = localtime(t);
-#ifndef SQLITE_UNTESTABLE
-  if( tdsqlite3GlobalConfig.bLocaltimeFault ) pX = 0;
-#endif
-  if( pX ) *pTm = *pX;
-  tdsqlite3_mutex_leave(mutex);
-  rc = pX==0;
-#else
-#ifndef SQLITE_UNTESTABLE
-  if( tdsqlite3GlobalConfig.bLocaltimeFault ) return 1;
-#endif
-#if HAVE_LOCALTIME_R
-  rc = localtime_r(t, pTm)==0;
-#else
-  rc = localtime_s(pTm, t);
-#endif /* HAVE_LOCALTIME_R */
-#endif /* HAVE_LOCALTIME_R || HAVE_LOCALTIME_S */
-  return rc;
-}
-#endif /* SQLITE_OMIT_LOCALTIME */
-
-
-#ifndef SQLITE_OMIT_LOCALTIME
-/*
-** Compute the difference (in milliseconds) between localtime and UTC
-** (a.k.a. GMT) for the time value p where p is in UTC. If no error occurs,
-** return this value and set *pRc to SQLITE_OK. 
-**
-** Or, if an error does occur, set *pRc to SQLITE_ERROR. The returned value
-** is undefined in this case.
-*/
-static tdsqlite3_int64 localtimeOffset(
-  DateTime *p,                    /* Date at which to calculate offset */
-  tdsqlite3_context *pCtx,          /* Write error here if one occurs */
-  int *pRc                        /* OUT: Error code. SQLITE_OK or ERROR */
-){
-  DateTime x, y;
-  time_t t;
-  struct tm sLocal;
-
-  /* Initialize the contents of sLocal to avoid a compiler warning. */
-  memset(&sLocal, 0, sizeof(sLocal));
-
-  x = *p;
-  computeYMD_HMS(&x);
-  if( x.Y<1971 || x.Y>=2038 ){
-    /* EVIDENCE-OF: R-55269-29598 The localtime_r() C function normally only
-    ** works for years between 1970 and 2037. For dates outside this range,
-    ** SQLite attempts to map the year into an equivalent year within this
-    ** range, do the calculation, then map the year back.
-    */
-    x.Y = 2000;
-    x.M = 1;
-    x.D = 1;
-    x.h = 0;
-    x.m = 0;
-    x.s = 0.0;
-  } else {
-    int s = (int)(x.s + 0.5);
-    x.s = s;
-  }
-  x.tz = 0;
-  x.validJD = 0;
-  computeJD(&x);
-  t = (time_t)(x.iJD/1000 - 21086676*(i64)10000);
-  if( osLocaltime(&t, &sLocal) ){
-    tdsqlite3_result_error(pCtx, "local time unavailable", -1);
-    *pRc = SQLITE_ERROR;
-    return 0;
-  }
-  y.Y = sLocal.tm_year + 1900;
-  y.M = sLocal.tm_mon + 1;
-  y.D = sLocal.tm_mday;
-  y.h = sLocal.tm_hour;
-  y.m = sLocal.tm_min;
-  y.s = sLocal.tm_sec;
-  y.validYMD = 1;
-  y.validHMS = 1;
-  y.validJD = 0;
-  y.rawS = 0;
-  y.validTZ = 0;
-  y.isError = 0;
-  computeJD(&y);
-  *pRc = SQLITE_OK;
-  return y.iJD - x.iJD;
-}
-#endif /* SQLITE_OMIT_LOCALTIME */
-
-/*
-** The following table defines various date transformations of the form
-**
-**            'NNN days'
-**
-** Where NNN is an arbitrary floating-point number and "days" can be one
-** of several units of time.
-*/
-static const struct {
-  u8 eType;           /* Transformation type code */
-  u8 nName;           /* Length of th name */
-  char *zName;        /* Name of the transformation */
-  double rLimit;      /* Maximum NNN value for this transform */
-  double rXform;      /* Constant used for this transform */
-} aXformType[] = {
-  { 0, 6, "second", 464269060800.0, 86400000.0/(24.0*60.0*60.0) },
-  { 0, 6, "minute", 7737817680.0,   86400000.0/(24.0*60.0)      },
-  { 0, 4, "hour",   128963628.0,    86400000.0/24.0             },
-  { 0, 3, "day",    5373485.0,      86400000.0                  },
-  { 1, 5, "month",  176546.0,       30.0*86400000.0             },
-  { 2, 4, "year",   14713.0,        365.0*86400000.0            },
-};
-
-/*
-** Process a modifier to a date-time stamp.  The modifiers are
-** as follows:
-**
-**     NNN days
-**     NNN hours
-**     NNN minutes
-**     NNN.NNNN seconds
-**     NNN months
-**     NNN years
-**     start of month
-**     start of year
-**     start of week
-**     start of day
-**     weekday N
-**     unixepoch
-**     localtime
-**     utc
-**
-** Return 0 on success and 1 if there is any kind of error. If the error
-** is in a system call (i.e. localtime()), then an error message is written
-** to context pCtx. If the error is an unrecognized modifier, no error is
-** written to pCtx.
-*/
-static int parseModifier(
-  tdsqlite3_context *pCtx,      /* Function context */
-  const char *z,              /* The text of the modifier */
-  int n,                      /* Length of zMod in bytes */
-  DateTime *p                 /* The date/time value to be modified */
-){
-  int rc = 1;
-  double r;
-  switch(tdsqlite3UpperToLower[(u8)z[0]] ){
-#ifndef SQLITE_OMIT_LOCALTIME
-    case 'l': {
-      /*    localtime
-      **
-      ** Assuming the current time value is UTC (a.k.a. GMT), shift it to
-      ** show local time.
-      */
-      if( tdsqlite3_stricmp(z, "localtime")==0 && tdsqlite3NotPureFunc(pCtx) ){
-        computeJD(p);
-        p->iJD += localtimeOffset(p, pCtx, &rc);
-        clearYMD_HMS_TZ(p);
-      }
-      break;
-    }
-#endif
-    case 'u': {
-      /*
-      **    unixepoch
-      **
-      ** Treat the current value of p->s as the number of
-      ** seconds since 1970.  Convert to a real julian day number.
-      */
-      if( tdsqlite3_stricmp(z, "unixepoch")==0 && p->rawS ){
-        r = p->s*1000.0 + 210866760000000.0;
-        if( r>=0.0 && r<464269060800000.0 ){
-          clearYMD_HMS_TZ(p);
-          p->iJD = (tdsqlite3_int64)(r + 0.5);
-          p->validJD = 1;
-          p->rawS = 0;
-          rc = 0;
-        }
-      }
-#ifndef SQLITE_OMIT_LOCALTIME
-      else if( tdsqlite3_stricmp(z, "utc")==0 && tdsqlite3NotPureFunc(pCtx) ){
-        if( p->tzSet==0 ){
-          tdsqlite3_int64 c1;
-          computeJD(p);
-          c1 = localtimeOffset(p, pCtx, &rc);
-          if( rc==SQLITE_OK ){
-            p->iJD -= c1;
-            clearYMD_HMS_TZ(p);
-            p->iJD += c1 - localtimeOffset(p, pCtx, &rc);
-          }
-          p->tzSet = 1;
-        }else{
-          rc = SQLITE_OK;
-        }
-      }
-#endif
-      break;
-    }
-    case 'w': {
-      /*
-      **    weekday N
-      **
-      ** Move the date to the same time on the next occurrence of
-      ** weekday N where 0==Sunday, 1==Monday, and so forth.  If the
-      ** date is already on the appropriate weekday, this is a no-op.
-      */
-      if( tdsqlite3_strnicmp(z, "weekday ", 8)==0
-               && tdsqlite3AtoF(&z[8], &r, tdsqlite3Strlen30(&z[8]), SQLITE_UTF8)>0
-               && (n=(int)r)==r && n>=0 && r<7 ){
-        tdsqlite3_int64 Z;
-        computeYMD_HMS(p);
-        p->validTZ = 0;
-        p->validJD = 0;
-        computeJD(p);
-        Z = ((p->iJD + 129600000)/86400000) % 7;
-        if( Z>n ) Z -= 7;
-        p->iJD += (n - Z)*86400000;
-        clearYMD_HMS_TZ(p);
-        rc = 0;
-      }
-      break;
-    }
-    case 's': {
-      /*
-      **    start of TTTTT
-      **
-      ** Move the date backwards to the beginning of the current day,
-      ** or month or year.
-      */
-      if( tdsqlite3_strnicmp(z, "start of ", 9)!=0 ) break;
-      if( !p->validJD && !p->validYMD && !p->validHMS ) break;
-      z += 9;
-      computeYMD(p);
-      p->validHMS = 1;
-      p->h = p->m = 0;
-      p->s = 0.0;
-      p->rawS = 0;
-      p->validTZ = 0;
-      p->validJD = 0;
-      if( tdsqlite3_stricmp(z,"month")==0 ){
-        p->D = 1;
-        rc = 0;
-      }else if( tdsqlite3_stricmp(z,"year")==0 ){
-        p->M = 1;
-        p->D = 1;
-        rc = 0;
-      }else if( tdsqlite3_stricmp(z,"day")==0 ){
-        rc = 0;
-      }
-      break;
-    }
-    case '+':
-    case '-':
-    case '0':
-    case '1':
-    case '2':
-    case '3':
-    case '4':
-    case '5':
-    case '6':
-    case '7':
-    case '8':
-    case '9': {
-      double rRounder;
-      int i;
-      for(n=1; z[n] && z[n]!=':' && !tdsqlite3Isspace(z[n]); n++){}
-      if( tdsqlite3AtoF(z, &r, n, SQLITE_UTF8)<=0 ){
-        rc = 1;
-        break;
-      }
-      if( z[n]==':' ){
-        /* A modifier of the form (+|-)HH:MM:SS.FFF adds (or subtracts) the
-        ** specified number of hours, minutes, seconds, and fractional seconds
-        ** to the time.  The ".FFF" may be omitted.  The ":SS.FFF" may be
-        ** omitted.
-        */
-        const char *z2 = z;
-        DateTime tx;
-        tdsqlite3_int64 day;
-        if( !tdsqlite3Isdigit(*z2) ) z2++;
-        memset(&tx, 0, sizeof(tx));
-        if( parseHhMmSs(z2, &tx) ) break;
-        computeJD(&tx);
-        tx.iJD -= 43200000;
-        day = tx.iJD/86400000;
-        tx.iJD -= day*86400000;
-        if( z[0]=='-' ) tx.iJD = -tx.iJD;
-        computeJD(p);
-        clearYMD_HMS_TZ(p);
-        p->iJD += tx.iJD;
-        rc = 0;
-        break;
-      }
-
-      /* If control reaches this point, it means the transformation is
-      ** one of the forms like "+NNN days".  */
-      z += n;
-      while( tdsqlite3Isspace(*z) ) z++;
-      n = tdsqlite3Strlen30(z);
-      if( n>10 || n<3 ) break;
-      if( tdsqlite3UpperToLower[(u8)z[n-1]]=='s' ) n--;
-      computeJD(p);
-      rc = 1;
-      rRounder = r<0 ? -0.5 : +0.5;
-      for(i=0; i<ArraySize(aXformType); i++){
-        if( aXformType[i].nName==n
-         && tdsqlite3_strnicmp(aXformType[i].zName, z, n)==0
-         && r>-aXformType[i].rLimit && r<aXformType[i].rLimit
-        ){
-          switch( aXformType[i].eType ){
-            case 1: { /* Special processing to add months */
-              int x;
-              computeYMD_HMS(p);
-              p->M += (int)r;
-              x = p->M>0 ? (p->M-1)/12 : (p->M-12)/12;
-              p->Y += x;
-              p->M -= x*12;
-              p->validJD = 0;
-              r -= (int)r;
-              break;
-            }
-            case 2: { /* Special processing to add years */
-              int y = (int)r;
-              computeYMD_HMS(p);
-              p->Y += y;
-              p->validJD = 0;
-              r -= (int)r;
-              break;
-            }
-          }
-          computeJD(p);
-          p->iJD += (tdsqlite3_int64)(r*aXformType[i].rXform + rRounder);
-          rc = 0;
-          break;
-        }
-      }
-      clearYMD_HMS_TZ(p);
-      break;
-    }
-    default: {
-      break;
-    }
-  }
-  return rc;
-}
-
-/*
-** Process time function arguments.  argv[0] is a date-time stamp.
-** argv[1] and following are modifiers.  Parse them all and write
-** the resulting time into the DateTime structure p.  Return 0
-** on success and 1 if there are any errors.
-**
-** If there are zero parameters (if even argv[0] is undefined)
-** then assume a default value of "now" for argv[0].
-*/
-static int isDate(
-  tdsqlite3_context *context, 
-  int argc, 
-  tdsqlite3_value **argv, 
-  DateTime *p
-){
-  int i, n;
-  const unsigned char *z;
-  int eType;
-  memset(p, 0, sizeof(*p));
-  if( argc==0 ){
-    return setDateTimeToCurrent(context, p);
-  }
-  if( (eType = tdsqlite3_value_type(argv[0]))==SQLITE_FLOAT
-                   || eType==SQLITE_INTEGER ){
-    setRawDateNumber(p, tdsqlite3_value_double(argv[0]));
-  }else{
-    z = tdsqlite3_value_text(argv[0]);
-    if( !z || parseDateOrTime(context, (char*)z, p) ){
-      return 1;
-    }
-  }
-  for(i=1; i<argc; i++){
-    z = tdsqlite3_value_text(argv[i]);
-    n = tdsqlite3_value_bytes(argv[i]);
-    if( z==0 || parseModifier(context, (char*)z, n, p) ) return 1;
-  }
-  computeJD(p);
-  if( p->isError || !validJulianDay(p->iJD) ) return 1;
-  return 0;
-}
-
-
-/*
-** The following routines implement the various date and time functions
-** of SQLite.
-*/
-
-/*
-**    julianday( TIMESTRING, MOD, MOD, ...)
-**
-** Return the julian day number of the date specified in the arguments
-*/
-static void juliandayFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  DateTime x;
-  if( isDate(context, argc, argv, &x)==0 ){
-    computeJD(&x);
-    tdsqlite3_result_double(context, x.iJD/86400000.0);
-  }
-}
-
-/*
-**    datetime( TIMESTRING, MOD, MOD, ...)
-**
-** Return YYYY-MM-DD HH:MM:SS
-*/
-static void datetimeFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  DateTime x;
-  if( isDate(context, argc, argv, &x)==0 ){
-    char zBuf[100];
-    computeYMD_HMS(&x);
-    tdsqlite3_snprintf(sizeof(zBuf), zBuf, "%04d-%02d-%02d %02d:%02d:%02d",
-                     x.Y, x.M, x.D, x.h, x.m, (int)(x.s));
-    tdsqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
-  }
-}
-
-/*
-**    time( TIMESTRING, MOD, MOD, ...)
-**
-** Return HH:MM:SS
-*/
-static void timeFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  DateTime x;
-  if( isDate(context, argc, argv, &x)==0 ){
-    char zBuf[100];
-    computeHMS(&x);
-    tdsqlite3_snprintf(sizeof(zBuf), zBuf, "%02d:%02d:%02d", x.h, x.m, (int)x.s);
-    tdsqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
-  }
-}
-
-/*
-**    date( TIMESTRING, MOD, MOD, ...)
-**
-** Return YYYY-MM-DD
-*/
-static void dateFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  DateTime x;
-  if( isDate(context, argc, argv, &x)==0 ){
-    char zBuf[100];
-    computeYMD(&x);
-    tdsqlite3_snprintf(sizeof(zBuf), zBuf, "%04d-%02d-%02d", x.Y, x.M, x.D);
-    tdsqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
-  }
-}
-
-/*
-**    strftime( FORMAT, TIMESTRING, MOD, MOD, ...)
-**
-** Return a string described by FORMAT.  Conversions as follows:
-**
-**   %d  day of month
-**   %f  ** fractional seconds  SS.SSS
-**   %H  hour 00-24
-**   %j  day of year 000-366
-**   %J  ** julian day number
-**   %m  month 01-12
-**   %M  minute 00-59
-**   %s  seconds since 1970-01-01
-**   %S  seconds 00-59
-**   %w  day of week 0-6  sunday==0
-**   %W  week of year 00-53
-**   %Y  year 0000-9999
-**   %%  %
-*/
-static void strftimeFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  DateTime x;
-  u64 n;
-  size_t i,j;
-  char *z;
-  tdsqlite3 *db;
-  const char *zFmt;
-  char zBuf[100];
-  if( argc==0 ) return;
-  zFmt = (const char*)tdsqlite3_value_text(argv[0]);
-  if( zFmt==0 || isDate(context, argc-1, argv+1, &x) ) return;
-  db = tdsqlite3_context_db_handle(context);
-  for(i=0, n=1; zFmt[i]; i++, n++){
-    if( zFmt[i]=='%' ){
-      switch( zFmt[i+1] ){
-        case 'd':
-        case 'H':
-        case 'm':
-        case 'M':
-        case 'S':
-        case 'W':
-          n++;
-          /* fall thru */
-        case 'w':
-        case '%':
-          break;
-        case 'f':
-          n += 8;
-          break;
-        case 'j':
-          n += 3;
-          break;
-        case 'Y':
-          n += 8;
-          break;
-        case 's':
-        case 'J':
-          n += 50;
-          break;
-        default:
-          return;  /* ERROR.  return a NULL */
-      }
-      i++;
-    }
-  }
-  testcase( n==sizeof(zBuf)-1 );
-  testcase( n==sizeof(zBuf) );
-  testcase( n==(u64)db->aLimit[SQLITE_LIMIT_LENGTH]+1 );
-  testcase( n==(u64)db->aLimit[SQLITE_LIMIT_LENGTH] );
-  if( n<sizeof(zBuf) ){
-    z = zBuf;
-  }else if( n>(u64)db->aLimit[SQLITE_LIMIT_LENGTH] ){
-    tdsqlite3_result_error_toobig(context);
-    return;
-  }else{
-    z = tdsqlite3DbMallocRawNN(db, (int)n);
-    if( z==0 ){
-      tdsqlite3_result_error_nomem(context);
-      return;
-    }
-  }
-  computeJD(&x);
-  computeYMD_HMS(&x);
-  for(i=j=0; zFmt[i]; i++){
-    if( zFmt[i]!='%' ){
-      z[j++] = zFmt[i];
-    }else{
-      i++;
-      switch( zFmt[i] ){
-        case 'd':  tdsqlite3_snprintf(3, &z[j],"%02d",x.D); j+=2; break;
-        case 'f': {
-          double s = x.s;
-          if( s>59.999 ) s = 59.999;
-          tdsqlite3_snprintf(7, &z[j],"%06.3f", s);
-          j += tdsqlite3Strlen30(&z[j]);
-          break;
-        }
-        case 'H':  tdsqlite3_snprintf(3, &z[j],"%02d",x.h); j+=2; break;
-        case 'W': /* Fall thru */
-        case 'j': {
-          int nDay;             /* Number of days since 1st day of year */
-          DateTime y = x;
-          y.validJD = 0;
-          y.M = 1;
-          y.D = 1;
-          computeJD(&y);
-          nDay = (int)((x.iJD-y.iJD+43200000)/86400000);
-          if( zFmt[i]=='W' ){
-            int wd;   /* 0=Monday, 1=Tuesday, ... 6=Sunday */
-            wd = (int)(((x.iJD+43200000)/86400000)%7);
-            tdsqlite3_snprintf(3, &z[j],"%02d",(nDay+7-wd)/7);
-            j += 2;
-          }else{
-            tdsqlite3_snprintf(4, &z[j],"%03d",nDay+1);
-            j += 3;
-          }
-          break;
-        }
-        case 'J': {
-          tdsqlite3_snprintf(20, &z[j],"%.16g",x.iJD/86400000.0);
-          j+=tdsqlite3Strlen30(&z[j]);
-          break;
-        }
-        case 'm':  tdsqlite3_snprintf(3, &z[j],"%02d",x.M); j+=2; break;
-        case 'M':  tdsqlite3_snprintf(3, &z[j],"%02d",x.m); j+=2; break;
-        case 's': {
-          tdsqlite3_snprintf(30,&z[j],"%lld",
-                           (i64)(x.iJD/1000 - 21086676*(i64)10000));
-          j += tdsqlite3Strlen30(&z[j]);
-          break;
-        }
-        case 'S':  tdsqlite3_snprintf(3,&z[j],"%02d",(int)x.s); j+=2; break;
-        case 'w': {
-          z[j++] = (char)(((x.iJD+129600000)/86400000) % 7) + '0';
-          break;
-        }
-        case 'Y': {
-          tdsqlite3_snprintf(5,&z[j],"%04d",x.Y); j+=tdsqlite3Strlen30(&z[j]);
-          break;
-        }
-        default:   z[j++] = '%'; break;
-      }
-    }
-  }
-  z[j] = 0;
-  tdsqlite3_result_text(context, z, -1,
-                      z==zBuf ? SQLITE_TRANSIENT : SQLITE_DYNAMIC);
-}
-
-/*
-** current_time()
-**
-** This function returns the same value as time('now').
-*/
-static void ctimeFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **NotUsed2
-){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  timeFunc(context, 0, 0);
-}
-
-/*
-** current_date()
-**
-** This function returns the same value as date('now').
-*/
-static void cdateFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **NotUsed2
-){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  dateFunc(context, 0, 0);
-}
-
-/*
-** current_timestamp()
-**
-** This function returns the same value as datetime('now').
-*/
-static void ctimestampFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **NotUsed2
-){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  datetimeFunc(context, 0, 0);
-}
-#endif /* !defined(SQLITE_OMIT_DATETIME_FUNCS) */
-
-#ifdef SQLITE_OMIT_DATETIME_FUNCS
-/*
-** If the library is compiled to omit the full-scale date and time
-** handling (to get a smaller binary), the following minimal version
-** of the functions current_time(), current_date() and current_timestamp()
-** are included instead. This is to support column declarations that
-** include "DEFAULT CURRENT_TIME" etc.
-**
-** This function uses the C-library functions time(), gmtime()
-** and strftime(). The format string to pass to strftime() is supplied
-** as the user-data for the function.
-*/
-static void currentTimeFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  time_t t;
-  char *zFormat = (char *)tdsqlite3_user_data(context);
-  tdsqlite3_int64 iT;
-  struct tm *pTm;
-  struct tm sNow;
-  char zBuf[20];
-
-  UNUSED_PARAMETER(argc);
-  UNUSED_PARAMETER(argv);
-
-  iT = tdsqlite3StmtCurrentTime(context);
-  if( iT<=0 ) return;
-  t = iT/1000 - 10000*(tdsqlite3_int64)21086676;
-#if HAVE_GMTIME_R
-  pTm = gmtime_r(&t, &sNow);
-#else
-  tdsqlite3_mutex_enter(tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER));
-  pTm = gmtime(&t);
-  if( pTm ) memcpy(&sNow, pTm, sizeof(sNow));
-  tdsqlite3_mutex_leave(tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER));
-#endif
-  if( pTm ){
-    strftime(zBuf, 20, zFormat, &sNow);
-    tdsqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
-  }
-}
-#endif
-
-/*
-** This function registered all of the above C functions as SQL
-** functions.  This should be the only routine in this file with
-** external linkage.
-*/
-SQLITE_PRIVATE void tdsqlite3RegisterDateTimeFunctions(void){
-  static FuncDef aDateTimeFuncs[] = {
-#ifndef SQLITE_OMIT_DATETIME_FUNCS
-    PURE_DATE(julianday,        -1, 0, 0, juliandayFunc ),
-    PURE_DATE(date,             -1, 0, 0, dateFunc      ),
-    PURE_DATE(time,             -1, 0, 0, timeFunc      ),
-    PURE_DATE(datetime,         -1, 0, 0, datetimeFunc  ),
-    PURE_DATE(strftime,         -1, 0, 0, strftimeFunc  ),
-    DFUNCTION(current_time,      0, 0, 0, ctimeFunc     ),
-    DFUNCTION(current_timestamp, 0, 0, 0, ctimestampFunc),
-    DFUNCTION(current_date,      0, 0, 0, cdateFunc     ),
-#else
-    STR_FUNCTION(current_time,      0, "%H:%M:%S",          0, currentTimeFunc),
-    STR_FUNCTION(current_date,      0, "%Y-%m-%d",          0, currentTimeFunc),
-    STR_FUNCTION(current_timestamp, 0, "%Y-%m-%d %H:%M:%S", 0, currentTimeFunc),
-#endif
-  };
-  tdsqlite3InsertBuiltinFuncs(aDateTimeFuncs, ArraySize(aDateTimeFuncs));
-}
-
-/************** End of date.c ************************************************/
-/************** Begin file os.c **********************************************/
-/*
-** 2005 November 29
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains OS interface code that is common to all
-** architectures.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** If we compile with the SQLITE_TEST macro set, then the following block
-** of code will give us the ability to simulate a disk I/O error.  This
-** is used for testing the I/O recovery logic.
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API int tdsqlite3_io_error_hit = 0;            /* Total number of I/O Errors */
-SQLITE_API int tdsqlite3_io_error_hardhit = 0;        /* Number of non-benign errors */
-SQLITE_API int tdsqlite3_io_error_pending = 0;        /* Count down to first I/O error */
-SQLITE_API int tdsqlite3_io_error_persist = 0;        /* True if I/O errors persist */
-SQLITE_API int tdsqlite3_io_error_benign = 0;         /* True if errors are benign */
-SQLITE_API int tdsqlite3_diskfull_pending = 0;
-SQLITE_API int tdsqlite3_diskfull = 0;
-#endif /* defined(SQLITE_TEST) */
-
-/*
-** When testing, also keep a count of the number of open files.
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API int tdsqlite3_open_file_count = 0;
-#endif /* defined(SQLITE_TEST) */
-
-/*
-** The default SQLite tdsqlite3_vfs implementations do not allocate
-** memory (actually, os_unix.c allocates a small amount of memory
-** from within OsOpen()), but some third-party implementations may.
-** So we test the effects of a malloc() failing and the tdsqlite3OsXXX()
-** function returning SQLITE_IOERR_NOMEM using the DO_OS_MALLOC_TEST macro.
-**
-** The following functions are instrumented for malloc() failure
-** testing:
-**
-**     tdsqlite3OsRead()
-**     tdsqlite3OsWrite()
-**     tdsqlite3OsSync()
-**     tdsqlite3OsFileSize()
-**     tdsqlite3OsLock()
-**     tdsqlite3OsCheckReservedLock()
-**     tdsqlite3OsFileControl()
-**     tdsqlite3OsShmMap()
-**     tdsqlite3OsOpen()
-**     tdsqlite3OsDelete()
-**     tdsqlite3OsAccess()
-**     tdsqlite3OsFullPathname()
-**
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API int tdsqlite3_memdebug_vfs_oom_test = 1;
-  #define DO_OS_MALLOC_TEST(x)                                       \
-  if (tdsqlite3_memdebug_vfs_oom_test && (!x || !tdsqlite3JournalIsInMemory(x))) { \
-    void *pTstAlloc = tdsqlite3Malloc(10);                             \
-    if (!pTstAlloc) return SQLITE_IOERR_NOMEM_BKPT;                  \
-    tdsqlite3_free(pTstAlloc);                                         \
-  }
-#else
-  #define DO_OS_MALLOC_TEST(x)
-#endif
-
-/*
-** The following routines are convenience wrappers around methods
-** of the tdsqlite3_file object.  This is mostly just syntactic sugar. All
-** of this would be completely automatic if SQLite were coded using
-** C++ instead of plain old C.
-*/
-SQLITE_PRIVATE void tdsqlite3OsClose(tdsqlite3_file *pId){
-  if( pId->pMethods ){
-    pId->pMethods->xClose(pId);
-    pId->pMethods = 0;
-  }
-}
-SQLITE_PRIVATE int tdsqlite3OsRead(tdsqlite3_file *id, void *pBuf, int amt, i64 offset){
-  DO_OS_MALLOC_TEST(id);
-  return id->pMethods->xRead(id, pBuf, amt, offset);
-}
-SQLITE_PRIVATE int tdsqlite3OsWrite(tdsqlite3_file *id, const void *pBuf, int amt, i64 offset){
-  DO_OS_MALLOC_TEST(id);
-  return id->pMethods->xWrite(id, pBuf, amt, offset);
-}
-SQLITE_PRIVATE int tdsqlite3OsTruncate(tdsqlite3_file *id, i64 size){
-  return id->pMethods->xTruncate(id, size);
-}
-SQLITE_PRIVATE int tdsqlite3OsSync(tdsqlite3_file *id, int flags){
-  DO_OS_MALLOC_TEST(id);
-  return flags ? id->pMethods->xSync(id, flags) : SQLITE_OK;
-}
-SQLITE_PRIVATE int tdsqlite3OsFileSize(tdsqlite3_file *id, i64 *pSize){
-  DO_OS_MALLOC_TEST(id);
-  return id->pMethods->xFileSize(id, pSize);
-}
-SQLITE_PRIVATE int tdsqlite3OsLock(tdsqlite3_file *id, int lockType){
-  DO_OS_MALLOC_TEST(id);
-  return id->pMethods->xLock(id, lockType);
-}
-SQLITE_PRIVATE int tdsqlite3OsUnlock(tdsqlite3_file *id, int lockType){
-  return id->pMethods->xUnlock(id, lockType);
-}
-SQLITE_PRIVATE int tdsqlite3OsCheckReservedLock(tdsqlite3_file *id, int *pResOut){
-  DO_OS_MALLOC_TEST(id);
-  return id->pMethods->xCheckReservedLock(id, pResOut);
-}
-
-/*
-** Use tdsqlite3OsFileControl() when we are doing something that might fail
-** and we need to know about the failures.  Use tdsqlite3OsFileControlHint()
-** when simply tossing information over the wall to the VFS and we do not
-** really care if the VFS receives and understands the information since it
-** is only a hint and can be safely ignored.  The tdsqlite3OsFileControlHint()
-** routine has no return value since the return value would be meaningless.
-*/
-SQLITE_PRIVATE int tdsqlite3OsFileControl(tdsqlite3_file *id, int op, void *pArg){
-  if( id->pMethods==0 ) return SQLITE_NOTFOUND;
-#ifdef SQLITE_TEST
-  if( op!=SQLITE_FCNTL_COMMIT_PHASETWO
-   && op!=SQLITE_FCNTL_LOCK_TIMEOUT
-  ){
-    /* Faults are not injected into COMMIT_PHASETWO because, assuming SQLite
-    ** is using a regular VFS, it is called after the corresponding
-    ** transaction has been committed. Injecting a fault at this point
-    ** confuses the test scripts - the COMMIT comand returns SQLITE_NOMEM
-    ** but the transaction is committed anyway.
-    **
-    ** The core must call OsFileControl() though, not OsFileControlHint(),
-    ** as if a custom VFS (e.g. zipvfs) returns an error here, it probably
-    ** means the commit really has failed and an error should be returned
-    ** to the user.  */
-    DO_OS_MALLOC_TEST(id);
-  }
-#endif
-  return id->pMethods->xFileControl(id, op, pArg);
-}
-SQLITE_PRIVATE void tdsqlite3OsFileControlHint(tdsqlite3_file *id, int op, void *pArg){
-  if( id->pMethods ) (void)id->pMethods->xFileControl(id, op, pArg);
-}
-
-SQLITE_PRIVATE int tdsqlite3OsSectorSize(tdsqlite3_file *id){
-  int (*xSectorSize)(tdsqlite3_file*) = id->pMethods->xSectorSize;
-  return (xSectorSize ? xSectorSize(id) : SQLITE_DEFAULT_SECTOR_SIZE);
-}
-SQLITE_PRIVATE int tdsqlite3OsDeviceCharacteristics(tdsqlite3_file *id){
-  return id->pMethods->xDeviceCharacteristics(id);
-}
-#ifndef SQLITE_OMIT_WAL
-SQLITE_PRIVATE int tdsqlite3OsShmLock(tdsqlite3_file *id, int offset, int n, int flags){
-  return id->pMethods->xShmLock(id, offset, n, flags);
-}
-SQLITE_PRIVATE void tdsqlite3OsShmBarrier(tdsqlite3_file *id){
-  id->pMethods->xShmBarrier(id);
-}
-SQLITE_PRIVATE int tdsqlite3OsShmUnmap(tdsqlite3_file *id, int deleteFlag){
-  return id->pMethods->xShmUnmap(id, deleteFlag);
-}
-SQLITE_PRIVATE int tdsqlite3OsShmMap(
-  tdsqlite3_file *id,               /* Database file handle */
-  int iPage,
-  int pgsz,
-  int bExtend,                    /* True to extend file if necessary */
-  void volatile **pp              /* OUT: Pointer to mapping */
-){
-  DO_OS_MALLOC_TEST(id);
-  return id->pMethods->xShmMap(id, iPage, pgsz, bExtend, pp);
-}
-#endif /* SQLITE_OMIT_WAL */
-
-#if SQLITE_MAX_MMAP_SIZE>0
-/* The real implementation of xFetch and xUnfetch */
-SQLITE_PRIVATE int tdsqlite3OsFetch(tdsqlite3_file *id, i64 iOff, int iAmt, void **pp){
-  DO_OS_MALLOC_TEST(id);
-  return id->pMethods->xFetch(id, iOff, iAmt, pp);
-}
-SQLITE_PRIVATE int tdsqlite3OsUnfetch(tdsqlite3_file *id, i64 iOff, void *p){
-  return id->pMethods->xUnfetch(id, iOff, p);
-}
-#else
-/* No-op stubs to use when memory-mapped I/O is disabled */
-SQLITE_PRIVATE int tdsqlite3OsFetch(tdsqlite3_file *id, i64 iOff, int iAmt, void **pp){
-  *pp = 0;
-  return SQLITE_OK;
-}
-SQLITE_PRIVATE int tdsqlite3OsUnfetch(tdsqlite3_file *id, i64 iOff, void *p){
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** The next group of routines are convenience wrappers around the
-** VFS methods.
-*/
-SQLITE_PRIVATE int tdsqlite3OsOpen(
-  tdsqlite3_vfs *pVfs,
-  const char *zPath,
-  tdsqlite3_file *pFile,
-  int flags,
-  int *pFlagsOut
-){
-  int rc;
-  DO_OS_MALLOC_TEST(0);
-  /* 0x87f7f is a mask of SQLITE_OPEN_ flags that are valid to be passed
-  ** down into the VFS layer.  Some SQLITE_OPEN_ flags (for example,
-  ** SQLITE_OPEN_FULLMUTEX or SQLITE_OPEN_SHAREDCACHE) are blocked before
-  ** reaching the VFS. */
-  rc = pVfs->xOpen(pVfs, zPath, pFile, flags & 0x1087f7f, pFlagsOut);
-  assert( rc==SQLITE_OK || pFile->pMethods==0 );
-  return rc;
-}
-SQLITE_PRIVATE int tdsqlite3OsDelete(tdsqlite3_vfs *pVfs, const char *zPath, int dirSync){
-  DO_OS_MALLOC_TEST(0);
-  assert( dirSync==0 || dirSync==1 );
-  return pVfs->xDelete(pVfs, zPath, dirSync);
-}
-SQLITE_PRIVATE int tdsqlite3OsAccess(
-  tdsqlite3_vfs *pVfs,
-  const char *zPath,
-  int flags,
-  int *pResOut
-){
-  DO_OS_MALLOC_TEST(0);
-  return pVfs->xAccess(pVfs, zPath, flags, pResOut);
-}
-SQLITE_PRIVATE int tdsqlite3OsFullPathname(
-  tdsqlite3_vfs *pVfs,
-  const char *zPath,
-  int nPathOut,
-  char *zPathOut
-){
-  DO_OS_MALLOC_TEST(0);
-  zPathOut[0] = 0;
-  return pVfs->xFullPathname(pVfs, zPath, nPathOut, zPathOut);
-}
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-SQLITE_PRIVATE void *tdsqlite3OsDlOpen(tdsqlite3_vfs *pVfs, const char *zPath){
-  return pVfs->xDlOpen(pVfs, zPath);
-}
-SQLITE_PRIVATE void tdsqlite3OsDlError(tdsqlite3_vfs *pVfs, int nByte, char *zBufOut){
-  pVfs->xDlError(pVfs, nByte, zBufOut);
-}
-SQLITE_PRIVATE void (*tdsqlite3OsDlSym(tdsqlite3_vfs *pVfs, void *pHdle, const char *zSym))(void){
-  return pVfs->xDlSym(pVfs, pHdle, zSym);
-}
-SQLITE_PRIVATE void tdsqlite3OsDlClose(tdsqlite3_vfs *pVfs, void *pHandle){
-  pVfs->xDlClose(pVfs, pHandle);
-}
-#endif /* SQLITE_OMIT_LOAD_EXTENSION */
-SQLITE_PRIVATE int tdsqlite3OsRandomness(tdsqlite3_vfs *pVfs, int nByte, char *zBufOut){
-  if( tdsqlite3Config.iPrngSeed ){
-    memset(zBufOut, 0, nByte);
-    if( ALWAYS(nByte>(signed)sizeof(unsigned)) ) nByte = sizeof(unsigned int);
-    memcpy(zBufOut, &tdsqlite3Config.iPrngSeed, nByte);
-    return SQLITE_OK;
-  }else{
-    return pVfs->xRandomness(pVfs, nByte, zBufOut);
-  }
-  
-}
-SQLITE_PRIVATE int tdsqlite3OsSleep(tdsqlite3_vfs *pVfs, int nMicro){
-  return pVfs->xSleep(pVfs, nMicro);
-}
-SQLITE_PRIVATE int tdsqlite3OsGetLastError(tdsqlite3_vfs *pVfs){
-  return pVfs->xGetLastError ? pVfs->xGetLastError(pVfs, 0, 0) : 0;
-}
-SQLITE_PRIVATE int tdsqlite3OsCurrentTimeInt64(tdsqlite3_vfs *pVfs, tdsqlite3_int64 *pTimeOut){
-  int rc;
-  /* IMPLEMENTATION-OF: R-49045-42493 SQLite will use the xCurrentTimeInt64()
-  ** method to get the current date and time if that method is available
-  ** (if iVersion is 2 or greater and the function pointer is not NULL) and
-  ** will fall back to xCurrentTime() if xCurrentTimeInt64() is
-  ** unavailable.
-  */
-  if( pVfs->iVersion>=2 && pVfs->xCurrentTimeInt64 ){
-    rc = pVfs->xCurrentTimeInt64(pVfs, pTimeOut);
-  }else{
-    double r;
-    rc = pVfs->xCurrentTime(pVfs, &r);
-    *pTimeOut = (tdsqlite3_int64)(r*86400000.0);
-  }
-  return rc;
-}
-
-SQLITE_PRIVATE int tdsqlite3OsOpenMalloc(
-  tdsqlite3_vfs *pVfs,
-  const char *zFile,
-  tdsqlite3_file **ppFile,
-  int flags,
-  int *pOutFlags
-){
-  int rc;
-  tdsqlite3_file *pFile;
-  pFile = (tdsqlite3_file *)tdsqlite3MallocZero(pVfs->szOsFile);
-  if( pFile ){
-    rc = tdsqlite3OsOpen(pVfs, zFile, pFile, flags, pOutFlags);
-    if( rc!=SQLITE_OK ){
-      tdsqlite3_free(pFile);
-    }else{
-      *ppFile = pFile;
-    }
-  }else{
-    rc = SQLITE_NOMEM_BKPT;
-  }
-  return rc;
-}
-SQLITE_PRIVATE void tdsqlite3OsCloseFree(tdsqlite3_file *pFile){
-  assert( pFile );
-  tdsqlite3OsClose(pFile);
-  tdsqlite3_free(pFile);
-}
-
-/*
-** This function is a wrapper around the OS specific implementation of
-** tdsqlite3_os_init(). The purpose of the wrapper is to provide the
-** ability to simulate a malloc failure, so that the handling of an
-** error in tdsqlite3_os_init() by the upper layers can be tested.
-*/
-SQLITE_PRIVATE int tdsqlite3OsInit(void){
-  void *p = tdsqlite3_malloc(10);
-  if( p==0 ) return SQLITE_NOMEM_BKPT;
-  tdsqlite3_free(p);
-  return tdsqlite3_os_init();
-}
-
-/*
-** The list of all registered VFS implementations.
-*/
-static tdsqlite3_vfs * SQLITE_WSD vfsList = 0;
-#define vfsList GLOBAL(tdsqlite3_vfs *, vfsList)
-
-/*
-** Locate a VFS by name.  If no name is given, simply return the
-** first VFS on the list.
-*/
-SQLITE_API tdsqlite3_vfs *tdsqlite3_vfs_find(const char *zVfs){
-  tdsqlite3_vfs *pVfs = 0;
-#if SQLITE_THREADSAFE
-  tdsqlite3_mutex *mutex;
-#endif
-#ifndef SQLITE_OMIT_AUTOINIT
-  int rc = tdsqlite3_initialize();
-  if( rc ) return 0;
-#endif
-#if SQLITE_THREADSAFE
-  mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
-#endif
-  tdsqlite3_mutex_enter(mutex);
-  for(pVfs = vfsList; pVfs; pVfs=pVfs->pNext){
-    if( zVfs==0 ) break;
-    if( strcmp(zVfs, pVfs->zName)==0 ) break;
-  }
-  tdsqlite3_mutex_leave(mutex);
-  return pVfs;
-}
-
-/*
-** Unlink a VFS from the linked list
-*/
-static void vfsUnlink(tdsqlite3_vfs *pVfs){
-  assert( tdsqlite3_mutex_held(tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER)) );
-  if( pVfs==0 ){
-    /* No-op */
-  }else if( vfsList==pVfs ){
-    vfsList = pVfs->pNext;
-  }else if( vfsList ){
-    tdsqlite3_vfs *p = vfsList;
-    while( p->pNext && p->pNext!=pVfs ){
-      p = p->pNext;
-    }
-    if( p->pNext==pVfs ){
-      p->pNext = pVfs->pNext;
-    }
-  }
-}
-
-/*
-** Register a VFS with the system.  It is harmless to register the same
-** VFS multiple times.  The new VFS becomes the default if makeDflt is
-** true.
-*/
-SQLITE_API int tdsqlite3_vfs_register(tdsqlite3_vfs *pVfs, int makeDflt){
-  MUTEX_LOGIC(tdsqlite3_mutex *mutex;)
-#ifndef SQLITE_OMIT_AUTOINIT
-  int rc = tdsqlite3_initialize();
-  if( rc ) return rc;
-#endif
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( pVfs==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-
-  MUTEX_LOGIC( mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); )
-  tdsqlite3_mutex_enter(mutex);
-  vfsUnlink(pVfs);
-  if( makeDflt || vfsList==0 ){
-    pVfs->pNext = vfsList;
-    vfsList = pVfs;
-  }else{
-    pVfs->pNext = vfsList->pNext;
-    vfsList->pNext = pVfs;
-  }
-  assert(vfsList);
-  tdsqlite3_mutex_leave(mutex);
-  return SQLITE_OK;
-}
-
-/*
-** Unregister a VFS so that it is no longer accessible.
-*/
-SQLITE_API int tdsqlite3_vfs_unregister(tdsqlite3_vfs *pVfs){
-  MUTEX_LOGIC(tdsqlite3_mutex *mutex;)
-#ifndef SQLITE_OMIT_AUTOINIT
-  int rc = tdsqlite3_initialize();
-  if( rc ) return rc;
-#endif
-  MUTEX_LOGIC( mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); )
-  tdsqlite3_mutex_enter(mutex);
-  vfsUnlink(pVfs);
-  tdsqlite3_mutex_leave(mutex);
-  return SQLITE_OK;
-}
-
-/************** End of os.c **************************************************/
-/************** Begin file fault.c *******************************************/
-/*
-** 2008 Jan 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains code to support the concept of "benign" 
-** malloc failures (when the xMalloc() or xRealloc() method of the
-** tdsqlite3_mem_methods structure fails to allocate a block of memory
-** and returns 0). 
-**
-** Most malloc failures are non-benign. After they occur, SQLite
-** abandons the current operation and returns an error code (usually
-** SQLITE_NOMEM) to the user. However, sometimes a fault is not necessarily
-** fatal. For example, if a malloc fails while resizing a hash table, this 
-** is completely recoverable simply by not carrying out the resize. The 
-** hash table will continue to function normally.  So a malloc failure 
-** during a hash table resize is a benign fault.
-*/
-
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_UNTESTABLE
-
-/*
-** Global variables.
-*/
-typedef struct BenignMallocHooks BenignMallocHooks;
-static SQLITE_WSD struct BenignMallocHooks {
-  void (*xBenignBegin)(void);
-  void (*xBenignEnd)(void);
-} tdsqlite3Hooks = { 0, 0 };
-
-/* The "wsdHooks" macro will resolve to the appropriate BenignMallocHooks
-** structure.  If writable static data is unsupported on the target,
-** we have to locate the state vector at run-time.  In the more common
-** case where writable static data is supported, wsdHooks can refer directly
-** to the "tdsqlite3Hooks" state vector declared above.
-*/
-#ifdef SQLITE_OMIT_WSD
-# define wsdHooksInit \
-  BenignMallocHooks *x = &GLOBAL(BenignMallocHooks,tdsqlite3Hooks)
-# define wsdHooks x[0]
-#else
-# define wsdHooksInit
-# define wsdHooks tdsqlite3Hooks
-#endif
-
-
-/*
-** Register hooks to call when tdsqlite3BeginBenignMalloc() and
-** tdsqlite3EndBenignMalloc() are called, respectively.
-*/
-SQLITE_PRIVATE void tdsqlite3BenignMallocHooks(
-  void (*xBenignBegin)(void),
-  void (*xBenignEnd)(void)
-){
-  wsdHooksInit;
-  wsdHooks.xBenignBegin = xBenignBegin;
-  wsdHooks.xBenignEnd = xBenignEnd;
-}
-
-/*
-** This (tdsqlite3EndBenignMalloc()) is called by SQLite code to indicate that
-** subsequent malloc failures are benign. A call to tdsqlite3EndBenignMalloc()
-** indicates that subsequent malloc failures are non-benign.
-*/
-SQLITE_PRIVATE void tdsqlite3BeginBenignMalloc(void){
-  wsdHooksInit;
-  if( wsdHooks.xBenignBegin ){
-    wsdHooks.xBenignBegin();
-  }
-}
-SQLITE_PRIVATE void tdsqlite3EndBenignMalloc(void){
-  wsdHooksInit;
-  if( wsdHooks.xBenignEnd ){
-    wsdHooks.xBenignEnd();
-  }
-}
-
-#endif   /* #ifndef SQLITE_UNTESTABLE */
-
-/************** End of fault.c ***********************************************/
-/************** Begin file mem0.c ********************************************/
-/*
-** 2008 October 28
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains a no-op memory allocation drivers for use when
-** SQLITE_ZERO_MALLOC is defined.  The allocation drivers implemented
-** here always fail.  SQLite will not operate with these drivers.  These
-** are merely placeholders.  Real drivers must be substituted using
-** tdsqlite3_config() before SQLite will operate.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** This version of the memory allocator is the default.  It is
-** used when no other memory allocator is specified using compile-time
-** macros.
-*/
-#ifdef SQLITE_ZERO_MALLOC
-
-/*
-** No-op versions of all memory allocation routines
-*/
-static void *tdsqlite3MemMalloc(int nByte){ return 0; }
-static void tdsqlite3MemFree(void *pPrior){ return; }
-static void *tdsqlite3MemRealloc(void *pPrior, int nByte){ return 0; }
-static int tdsqlite3MemSize(void *pPrior){ return 0; }
-static int tdsqlite3MemRoundup(int n){ return n; }
-static int tdsqlite3MemInit(void *NotUsed){ return SQLITE_OK; }
-static void tdsqlite3MemShutdown(void *NotUsed){ return; }
-
-/*
-** This routine is the only routine in this file with external linkage.
-**
-** Populate the low-level memory allocation function pointers in
-** tdsqlite3GlobalConfig.m with pointers to the routines in this file.
-*/
-SQLITE_PRIVATE void tdsqlite3MemSetDefault(void){
-  static const tdsqlite3_mem_methods defaultMethods = {
-     tdsqlite3MemMalloc,
-     tdsqlite3MemFree,
-     tdsqlite3MemRealloc,
-     tdsqlite3MemSize,
-     tdsqlite3MemRoundup,
-     tdsqlite3MemInit,
-     tdsqlite3MemShutdown,
-     0
-  };
-  tdsqlite3_config(SQLITE_CONFIG_MALLOC, &defaultMethods);
-}
-
-#endif /* SQLITE_ZERO_MALLOC */
-
-/************** End of mem0.c ************************************************/
-/************** Begin file mem1.c ********************************************/
-/*
-** 2007 August 14
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains low-level memory allocation drivers for when
-** SQLite will use the standard C-library malloc/realloc/free interface
-** to obtain the memory it needs.
-**
-** This file contains implementations of the low-level memory allocation
-** routines specified in the tdsqlite3_mem_methods object.  The content of
-** this file is only used if SQLITE_SYSTEM_MALLOC is defined.  The
-** SQLITE_SYSTEM_MALLOC macro is defined automatically if neither the
-** SQLITE_MEMDEBUG nor the SQLITE_WIN32_MALLOC macros are defined.  The
-** default configuration is to use memory allocation routines in this
-** file.
-**
-** C-preprocessor macro summary:
-**
-**    HAVE_MALLOC_USABLE_SIZE     The configure script sets this symbol if
-**                                the malloc_usable_size() interface exists
-**                                on the target platform.  Or, this symbol
-**                                can be set manually, if desired.
-**                                If an equivalent interface exists by
-**                                a different name, using a separate -D
-**                                option to rename it.
-**
-**    SQLITE_WITHOUT_ZONEMALLOC   Some older macs lack support for the zone
-**                                memory allocator.  Set this symbol to enable
-**                                building on older macs.
-**
-**    SQLITE_WITHOUT_MSIZE        Set this symbol to disable the use of
-**                                _msize() on windows systems.  This might
-**                                be necessary when compiling for Delphi,
-**                                for example.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** This version of the memory allocator is the default.  It is
-** used when no other memory allocator is specified using compile-time
-** macros.
-*/
-#ifdef SQLITE_SYSTEM_MALLOC
-#if defined(__APPLE__) && !defined(SQLITE_WITHOUT_ZONEMALLOC)
-
-/*
-** Use the zone allocator available on apple products unless the
-** SQLITE_WITHOUT_ZONEMALLOC symbol is defined.
-*/
-#include <sys/sysctl.h>
-#include <malloc/malloc.h>
-#ifdef SQLITE_MIGHT_BE_SINGLE_CORE
-#include <libkern/OSAtomic.h>
-#endif /* SQLITE_MIGHT_BE_SINGLE_CORE */
-static malloc_zone_t* _sqliteZone_;
-#define SQLITE_MALLOC(x) malloc_zone_malloc(_sqliteZone_, (x))
-#define SQLITE_FREE(x) malloc_zone_free(_sqliteZone_, (x));
-#define SQLITE_REALLOC(x,y) malloc_zone_realloc(_sqliteZone_, (x), (y))
-#define SQLITE_MALLOCSIZE(x) \
-        (_sqliteZone_ ? _sqliteZone_->size(_sqliteZone_,x) : malloc_size(x))
-
-#else /* if not __APPLE__ */
-
-/*
-** Use standard C library malloc and free on non-Apple systems.  
-** Also used by Apple systems if SQLITE_WITHOUT_ZONEMALLOC is defined.
-*/
-#define SQLITE_MALLOC(x)             malloc(x)
-#define SQLITE_FREE(x)               free(x)
-#define SQLITE_REALLOC(x,y)          realloc((x),(y))
-
-/*
-** The malloc.h header file is needed for malloc_usable_size() function
-** on some systems (e.g. Linux).
-*/
-#if HAVE_MALLOC_H && HAVE_MALLOC_USABLE_SIZE
-#  define SQLITE_USE_MALLOC_H 1
-#  define SQLITE_USE_MALLOC_USABLE_SIZE 1
-/*
-** The MSVCRT has malloc_usable_size(), but it is called _msize().  The
-** use of _msize() is automatic, but can be disabled by compiling with
-** -DSQLITE_WITHOUT_MSIZE.  Using the _msize() function also requires
-** the malloc.h header file.
-*/
-#elif defined(_MSC_VER) && !defined(SQLITE_WITHOUT_MSIZE)
-#  define SQLITE_USE_MALLOC_H
-#  define SQLITE_USE_MSIZE
-#endif
-
-/*
-** Include the malloc.h header file, if necessary.  Also set define macro
-** SQLITE_MALLOCSIZE to the appropriate function name, which is _msize()
-** for MSVC and malloc_usable_size() for most other systems (e.g. Linux).
-** The memory size function can always be overridden manually by defining
-** the macro SQLITE_MALLOCSIZE to the desired function name.
-*/
-#if defined(SQLITE_USE_MALLOC_H)
-#  include <malloc.h>
-#  if defined(SQLITE_USE_MALLOC_USABLE_SIZE)
-#    if !defined(SQLITE_MALLOCSIZE)
-#      define SQLITE_MALLOCSIZE(x)   malloc_usable_size(x)
-#    endif
-#  elif defined(SQLITE_USE_MSIZE)
-#    if !defined(SQLITE_MALLOCSIZE)
-#      define SQLITE_MALLOCSIZE      _msize
-#    endif
-#  endif
-#endif /* defined(SQLITE_USE_MALLOC_H) */
-
-#endif /* __APPLE__ or not __APPLE__ */
-
-/*
-** Like malloc(), but remember the size of the allocation
-** so that we can find it later using tdsqlite3MemSize().
-**
-** For this low-level routine, we are guaranteed that nByte>0 because
-** cases of nByte<=0 will be intercepted and dealt with by higher level
-** routines.
-*/
-static void *tdsqlite3MemMalloc(int nByte){
-#ifdef SQLITE_MALLOCSIZE
-  void *p;
-  testcase( ROUND8(nByte)==nByte );
-  p = SQLITE_MALLOC( nByte );
-  if( p==0 ){
-    testcase( tdsqlite3GlobalConfig.xLog!=0 );
-    tdsqlite3_log(SQLITE_NOMEM, "failed to allocate %u bytes of memory", nByte);
-  }
-  return p;
-#else
-  tdsqlite3_int64 *p;
-  assert( nByte>0 );
-  testcase( ROUND8(nByte)!=nByte );
-  p = SQLITE_MALLOC( nByte+8 );
-  if( p ){
-    p[0] = nByte;
-    p++;
-  }else{
-    testcase( tdsqlite3GlobalConfig.xLog!=0 );
-    tdsqlite3_log(SQLITE_NOMEM, "failed to allocate %u bytes of memory", nByte);
-  }
-  return (void *)p;
-#endif
-}
-
-/*
-** Like free() but works for allocations obtained from tdsqlite3MemMalloc()
-** or tdsqlite3MemRealloc().
-**
-** For this low-level routine, we already know that pPrior!=0 since
-** cases where pPrior==0 will have been intecepted and dealt with
-** by higher-level routines.
-*/
-static void tdsqlite3MemFree(void *pPrior){
-#ifdef SQLITE_MALLOCSIZE
-  SQLITE_FREE(pPrior);
-#else
-  tdsqlite3_int64 *p = (tdsqlite3_int64*)pPrior;
-  assert( pPrior!=0 );
-  p--;
-  SQLITE_FREE(p);
-#endif
-}
-
-/*
-** Report the allocated size of a prior return from xMalloc()
-** or xRealloc().
-*/
-static int tdsqlite3MemSize(void *pPrior){
-#ifdef SQLITE_MALLOCSIZE
-  assert( pPrior!=0 );
-  return (int)SQLITE_MALLOCSIZE(pPrior);
-#else
-  tdsqlite3_int64 *p;
-  assert( pPrior!=0 );
-  p = (tdsqlite3_int64*)pPrior;
-  p--;
-  return (int)p[0];
-#endif
-}
-
-/*
-** Like realloc().  Resize an allocation previously obtained from
-** tdsqlite3MemMalloc().
-**
-** For this low-level interface, we know that pPrior!=0.  Cases where
-** pPrior==0 while have been intercepted by higher-level routine and
-** redirected to xMalloc.  Similarly, we know that nByte>0 because
-** cases where nByte<=0 will have been intercepted by higher-level
-** routines and redirected to xFree.
-*/
-static void *tdsqlite3MemRealloc(void *pPrior, int nByte){
-#ifdef SQLITE_MALLOCSIZE
-  void *p = SQLITE_REALLOC(pPrior, nByte);
-  if( p==0 ){
-    testcase( tdsqlite3GlobalConfig.xLog!=0 );
-    tdsqlite3_log(SQLITE_NOMEM,
-      "failed memory resize %u to %u bytes",
-      SQLITE_MALLOCSIZE(pPrior), nByte);
-  }
-  return p;
-#else
-  tdsqlite3_int64 *p = (tdsqlite3_int64*)pPrior;
-  assert( pPrior!=0 && nByte>0 );
-  assert( nByte==ROUND8(nByte) ); /* EV: R-46199-30249 */
-  p--;
-  p = SQLITE_REALLOC(p, nByte+8 );
-  if( p ){
-    p[0] = nByte;
-    p++;
-  }else{
-    testcase( tdsqlite3GlobalConfig.xLog!=0 );
-    tdsqlite3_log(SQLITE_NOMEM,
-      "failed memory resize %u to %u bytes",
-      tdsqlite3MemSize(pPrior), nByte);
-  }
-  return (void*)p;
-#endif
-}
-
-/*
-** Round up a request size to the next valid allocation size.
-*/
-static int tdsqlite3MemRoundup(int n){
-  return ROUND8(n);
-}
-
-/*
-** Initialize this module.
-*/
-static int tdsqlite3MemInit(void *NotUsed){
-#if defined(__APPLE__) && !defined(SQLITE_WITHOUT_ZONEMALLOC)
-  int cpuCount;
-  size_t len;
-  if( _sqliteZone_ ){
-    return SQLITE_OK;
-  }
-  len = sizeof(cpuCount);
-  /* One usually wants to use hw.acctivecpu for MT decisions, but not here */
-  sysctlbyname("hw.ncpu", &cpuCount, &len, NULL, 0);
-  if( cpuCount>1 ){
-    /* defer MT decisions to system malloc */
-    _sqliteZone_ = malloc_default_zone();
-  }else{
-    /* only 1 core, use our own zone to contention over global locks, 
-    ** e.g. we have our own dedicated locks */
-    _sqliteZone_ = malloc_create_zone(4096, 0);
-    malloc_set_zone_name(_sqliteZone_, "Sqlite_Heap");
-  }
-#endif /*  defined(__APPLE__) && !defined(SQLITE_WITHOUT_ZONEMALLOC) */
-  UNUSED_PARAMETER(NotUsed);
-  return SQLITE_OK;
-}
-
-/*
-** Deinitialize this module.
-*/
-static void tdsqlite3MemShutdown(void *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  return;
-}
-
-/*
-** This routine is the only routine in this file with external linkage.
-**
-** Populate the low-level memory allocation function pointers in
-** tdsqlite3GlobalConfig.m with pointers to the routines in this file.
-*/
-SQLITE_PRIVATE void tdsqlite3MemSetDefault(void){
-  static const tdsqlite3_mem_methods defaultMethods = {
-     tdsqlite3MemMalloc,
-     tdsqlite3MemFree,
-     tdsqlite3MemRealloc,
-     tdsqlite3MemSize,
-     tdsqlite3MemRoundup,
-     tdsqlite3MemInit,
-     tdsqlite3MemShutdown,
-     0
-  };
-  tdsqlite3_config(SQLITE_CONFIG_MALLOC, &defaultMethods);
-}
-
-#endif /* SQLITE_SYSTEM_MALLOC */
-
-/************** End of mem1.c ************************************************/
-/************** Begin file mem2.c ********************************************/
-/*
-** 2007 August 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains low-level memory allocation drivers for when
-** SQLite will use the standard C-library malloc/realloc/free interface
-** to obtain the memory it needs while adding lots of additional debugging
-** information to each allocation in order to help detect and fix memory
-** leaks and memory usage errors.
-**
-** This file contains implementations of the low-level memory allocation
-** routines specified in the tdsqlite3_mem_methods object.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** This version of the memory allocator is used only if the
-** SQLITE_MEMDEBUG macro is defined
-*/
-#ifdef SQLITE_MEMDEBUG
-
-/*
-** The backtrace functionality is only available with GLIBC
-*/
-#ifdef __GLIBC__
-  extern int backtrace(void**,int);
-  extern void backtrace_symbols_fd(void*const*,int,int);
-#else
-# define backtrace(A,B) 1
-# define backtrace_symbols_fd(A,B,C)
-#endif
-/* #include <stdio.h> */
-
-/*
-** Each memory allocation looks like this:
-**
-**  ------------------------------------------------------------------------
-**  | Title |  backtrace pointers |  MemBlockHdr |  allocation |  EndGuard |
-**  ------------------------------------------------------------------------
-**
-** The application code sees only a pointer to the allocation.  We have
-** to back up from the allocation pointer to find the MemBlockHdr.  The
-** MemBlockHdr tells us the size of the allocation and the number of
-** backtrace pointers.  There is also a guard word at the end of the
-** MemBlockHdr.
-*/
-struct MemBlockHdr {
-  i64 iSize;                          /* Size of this allocation */
-  struct MemBlockHdr *pNext, *pPrev;  /* Linked list of all unfreed memory */
-  char nBacktrace;                    /* Number of backtraces on this alloc */
-  char nBacktraceSlots;               /* Available backtrace slots */
-  u8 nTitle;                          /* Bytes of title; includes '\0' */
-  u8 eType;                           /* Allocation type code */
-  int iForeGuard;                     /* Guard word for sanity */
-};
-
-/*
-** Guard words
-*/
-#define FOREGUARD 0x80F5E153
-#define REARGUARD 0xE4676B53
-
-/*
-** Number of malloc size increments to track.
-*/
-#define NCSIZE  1000
-
-/*
-** All of the static variables used by this module are collected
-** into a single structure named "mem".  This is to keep the
-** static variables organized and to reduce namespace pollution
-** when this module is combined with other in the amalgamation.
-*/
-static struct {
-  
-  /*
-  ** Mutex to control access to the memory allocation subsystem.
-  */
-  tdsqlite3_mutex *mutex;
-
-  /*
-  ** Head and tail of a linked list of all outstanding allocations
-  */
-  struct MemBlockHdr *pFirst;
-  struct MemBlockHdr *pLast;
-  
-  /*
-  ** The number of levels of backtrace to save in new allocations.
-  */
-  int nBacktrace;
-  void (*xBacktrace)(int, int, void **);
-
-  /*
-  ** Title text to insert in front of each block
-  */
-  int nTitle;        /* Bytes of zTitle to save.  Includes '\0' and padding */
-  char zTitle[100];  /* The title text */
-
-  /* 
-  ** tdsqlite3MallocDisallow() increments the following counter.
-  ** tdsqlite3MallocAllow() decrements it.
-  */
-  int disallow; /* Do not allow memory allocation */
-
-  /*
-  ** Gather statistics on the sizes of memory allocations.
-  ** nAlloc[i] is the number of allocation attempts of i*8
-  ** bytes.  i==NCSIZE is the number of allocation attempts for
-  ** sizes more than NCSIZE*8 bytes.
-  */
-  int nAlloc[NCSIZE];      /* Total number of allocations */
-  int nCurrent[NCSIZE];    /* Current number of allocations */
-  int mxCurrent[NCSIZE];   /* Highwater mark for nCurrent */
-
-} mem;
-
-
-/*
-** Adjust memory usage statistics
-*/
-static void adjustStats(int iSize, int increment){
-  int i = ROUND8(iSize)/8;
-  if( i>NCSIZE-1 ){
-    i = NCSIZE - 1;
-  }
-  if( increment>0 ){
-    mem.nAlloc[i]++;
-    mem.nCurrent[i]++;
-    if( mem.nCurrent[i]>mem.mxCurrent[i] ){
-      mem.mxCurrent[i] = mem.nCurrent[i];
-    }
-  }else{
-    mem.nCurrent[i]--;
-    assert( mem.nCurrent[i]>=0 );
-  }
-}
-
-/*
-** Given an allocation, find the MemBlockHdr for that allocation.
-**
-** This routine checks the guards at either end of the allocation and
-** if they are incorrect it asserts.
-*/
-static struct MemBlockHdr *tdsqlite3MemsysGetHeader(void *pAllocation){
-  struct MemBlockHdr *p;
-  int *pInt;
-  u8 *pU8;
-  int nReserve;
-
-  p = (struct MemBlockHdr*)pAllocation;
-  p--;
-  assert( p->iForeGuard==(int)FOREGUARD );
-  nReserve = ROUND8(p->iSize);
-  pInt = (int*)pAllocation;
-  pU8 = (u8*)pAllocation;
-  assert( pInt[nReserve/sizeof(int)]==(int)REARGUARD );
-  /* This checks any of the "extra" bytes allocated due
-  ** to rounding up to an 8 byte boundary to ensure 
-  ** they haven't been overwritten.
-  */
-  while( nReserve-- > p->iSize ) assert( pU8[nReserve]==0x65 );
-  return p;
-}
-
-/*
-** Return the number of bytes currently allocated at address p.
-*/
-static int tdsqlite3MemSize(void *p){
-  struct MemBlockHdr *pHdr;
-  if( !p ){
-    return 0;
-  }
-  pHdr = tdsqlite3MemsysGetHeader(p);
-  return (int)pHdr->iSize;
-}
-
-/*
-** Initialize the memory allocation subsystem.
-*/
-static int tdsqlite3MemInit(void *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  assert( (sizeof(struct MemBlockHdr)&7) == 0 );
-  if( !tdsqlite3GlobalConfig.bMemstat ){
-    /* If memory status is enabled, then the malloc.c wrapper will already
-    ** hold the STATIC_MEM mutex when the routines here are invoked. */
-    mem.mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Deinitialize the memory allocation subsystem.
-*/
-static void tdsqlite3MemShutdown(void *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  mem.mutex = 0;
-}
-
-/*
-** Round up a request size to the next valid allocation size.
-*/
-static int tdsqlite3MemRoundup(int n){
-  return ROUND8(n);
-}
-
-/*
-** Fill a buffer with pseudo-random bytes.  This is used to preset
-** the content of a new memory allocation to unpredictable values and
-** to clear the content of a freed allocation to unpredictable values.
-*/
-static void randomFill(char *pBuf, int nByte){
-  unsigned int x, y, r;
-  x = SQLITE_PTR_TO_INT(pBuf);
-  y = nByte | 1;
-  while( nByte >= 4 ){
-    x = (x>>1) ^ (-(int)(x&1) & 0xd0000001);
-    y = y*1103515245 + 12345;
-    r = x ^ y;
-    *(int*)pBuf = r;
-    pBuf += 4;
-    nByte -= 4;
-  }
-  while( nByte-- > 0 ){
-    x = (x>>1) ^ (-(int)(x&1) & 0xd0000001);
-    y = y*1103515245 + 12345;
-    r = x ^ y;
-    *(pBuf++) = r & 0xff;
-  }
-}
-
-/*
-** Allocate nByte bytes of memory.
-*/
-static void *tdsqlite3MemMalloc(int nByte){
-  struct MemBlockHdr *pHdr;
-  void **pBt;
-  char *z;
-  int *pInt;
-  void *p = 0;
-  int totalSize;
-  int nReserve;
-  tdsqlite3_mutex_enter(mem.mutex);
-  assert( mem.disallow==0 );
-  nReserve = ROUND8(nByte);
-  totalSize = nReserve + sizeof(*pHdr) + sizeof(int) +
-               mem.nBacktrace*sizeof(void*) + mem.nTitle;
-  p = malloc(totalSize);
-  if( p ){
-    z = p;
-    pBt = (void**)&z[mem.nTitle];
-    pHdr = (struct MemBlockHdr*)&pBt[mem.nBacktrace];
-    pHdr->pNext = 0;
-    pHdr->pPrev = mem.pLast;
-    if( mem.pLast ){
-      mem.pLast->pNext = pHdr;
-    }else{
-      mem.pFirst = pHdr;
-    }
-    mem.pLast = pHdr;
-    pHdr->iForeGuard = FOREGUARD;
-    pHdr->eType = MEMTYPE_HEAP;
-    pHdr->nBacktraceSlots = mem.nBacktrace;
-    pHdr->nTitle = mem.nTitle;
-    if( mem.nBacktrace ){
-      void *aAddr[40];
-      pHdr->nBacktrace = backtrace(aAddr, mem.nBacktrace+1)-1;
-      memcpy(pBt, &aAddr[1], pHdr->nBacktrace*sizeof(void*));
-      assert(pBt[0]);
-      if( mem.xBacktrace ){
-        mem.xBacktrace(nByte, pHdr->nBacktrace-1, &aAddr[1]);
-      }
-    }else{
-      pHdr->nBacktrace = 0;
-    }
-    if( mem.nTitle ){
-      memcpy(z, mem.zTitle, mem.nTitle);
-    }
-    pHdr->iSize = nByte;
-    adjustStats(nByte, +1);
-    pInt = (int*)&pHdr[1];
-    pInt[nReserve/sizeof(int)] = REARGUARD;
-    randomFill((char*)pInt, nByte);
-    memset(((char*)pInt)+nByte, 0x65, nReserve-nByte);
-    p = (void*)pInt;
-  }
-  tdsqlite3_mutex_leave(mem.mutex);
-  return p; 
-}
-
-/*
-** Free memory.
-*/
-static void tdsqlite3MemFree(void *pPrior){
-  struct MemBlockHdr *pHdr;
-  void **pBt;
-  char *z;
-  assert( tdsqlite3GlobalConfig.bMemstat || tdsqlite3GlobalConfig.bCoreMutex==0 
-       || mem.mutex!=0 );
-  pHdr = tdsqlite3MemsysGetHeader(pPrior);
-  pBt = (void**)pHdr;
-  pBt -= pHdr->nBacktraceSlots;
-  tdsqlite3_mutex_enter(mem.mutex);
-  if( pHdr->pPrev ){
-    assert( pHdr->pPrev->pNext==pHdr );
-    pHdr->pPrev->pNext = pHdr->pNext;
-  }else{
-    assert( mem.pFirst==pHdr );
-    mem.pFirst = pHdr->pNext;
-  }
-  if( pHdr->pNext ){
-    assert( pHdr->pNext->pPrev==pHdr );
-    pHdr->pNext->pPrev = pHdr->pPrev;
-  }else{
-    assert( mem.pLast==pHdr );
-    mem.pLast = pHdr->pPrev;
-  }
-  z = (char*)pBt;
-  z -= pHdr->nTitle;
-  adjustStats((int)pHdr->iSize, -1);
-  randomFill(z, sizeof(void*)*pHdr->nBacktraceSlots + sizeof(*pHdr) +
-                (int)pHdr->iSize + sizeof(int) + pHdr->nTitle);
-  free(z);
-  tdsqlite3_mutex_leave(mem.mutex);  
-}
-
-/*
-** Change the size of an existing memory allocation.
-**
-** For this debugging implementation, we *always* make a copy of the
-** allocation into a new place in memory.  In this way, if the 
-** higher level code is using pointer to the old allocation, it is 
-** much more likely to break and we are much more liking to find
-** the error.
-*/
-static void *tdsqlite3MemRealloc(void *pPrior, int nByte){
-  struct MemBlockHdr *pOldHdr;
-  void *pNew;
-  assert( mem.disallow==0 );
-  assert( (nByte & 7)==0 );     /* EV: R-46199-30249 */
-  pOldHdr = tdsqlite3MemsysGetHeader(pPrior);
-  pNew = tdsqlite3MemMalloc(nByte);
-  if( pNew ){
-    memcpy(pNew, pPrior, (int)(nByte<pOldHdr->iSize ? nByte : pOldHdr->iSize));
-    if( nByte>pOldHdr->iSize ){
-      randomFill(&((char*)pNew)[pOldHdr->iSize], nByte - (int)pOldHdr->iSize);
-    }
-    tdsqlite3MemFree(pPrior);
-  }
-  return pNew;
-}
-
-/*
-** Populate the low-level memory allocation function pointers in
-** tdsqlite3GlobalConfig.m with pointers to the routines in this file.
-*/
-SQLITE_PRIVATE void tdsqlite3MemSetDefault(void){
-  static const tdsqlite3_mem_methods defaultMethods = {
-     tdsqlite3MemMalloc,
-     tdsqlite3MemFree,
-     tdsqlite3MemRealloc,
-     tdsqlite3MemSize,
-     tdsqlite3MemRoundup,
-     tdsqlite3MemInit,
-     tdsqlite3MemShutdown,
-     0
-  };
-  tdsqlite3_config(SQLITE_CONFIG_MALLOC, &defaultMethods);
-}
-
-/*
-** Set the "type" of an allocation.
-*/
-SQLITE_PRIVATE void tdsqlite3MemdebugSetType(void *p, u8 eType){
-  if( p && tdsqlite3GlobalConfig.m.xMalloc==tdsqlite3MemMalloc ){
-    struct MemBlockHdr *pHdr;
-    pHdr = tdsqlite3MemsysGetHeader(p);
-    assert( pHdr->iForeGuard==FOREGUARD );
-    pHdr->eType = eType;
-  }
-}
-
-/*
-** Return TRUE if the mask of type in eType matches the type of the
-** allocation p.  Also return true if p==NULL.
-**
-** This routine is designed for use within an assert() statement, to
-** verify the type of an allocation.  For example:
-**
-**     assert( tdsqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
-*/
-SQLITE_PRIVATE int tdsqlite3MemdebugHasType(void *p, u8 eType){
-  int rc = 1;
-  if( p && tdsqlite3GlobalConfig.m.xMalloc==tdsqlite3MemMalloc ){
-    struct MemBlockHdr *pHdr;
-    pHdr = tdsqlite3MemsysGetHeader(p);
-    assert( pHdr->iForeGuard==FOREGUARD );         /* Allocation is valid */
-    if( (pHdr->eType&eType)==0 ){
-      rc = 0;
-    }
-  }
-  return rc;
-}
-
-/*
-** Return TRUE if the mask of type in eType matches no bits of the type of the
-** allocation p.  Also return true if p==NULL.
-**
-** This routine is designed for use within an assert() statement, to
-** verify the type of an allocation.  For example:
-**
-**     assert( tdsqlite3MemdebugNoType(p, MEMTYPE_LOOKASIDE) );
-*/
-SQLITE_PRIVATE int tdsqlite3MemdebugNoType(void *p, u8 eType){
-  int rc = 1;
-  if( p && tdsqlite3GlobalConfig.m.xMalloc==tdsqlite3MemMalloc ){
-    struct MemBlockHdr *pHdr;
-    pHdr = tdsqlite3MemsysGetHeader(p);
-    assert( pHdr->iForeGuard==FOREGUARD );         /* Allocation is valid */
-    if( (pHdr->eType&eType)!=0 ){
-      rc = 0;
-    }
-  }
-  return rc;
-}
-
-/*
-** Set the number of backtrace levels kept for each allocation.
-** A value of zero turns off backtracing.  The number is always rounded
-** up to a multiple of 2.
-*/
-SQLITE_PRIVATE void tdsqlite3MemdebugBacktrace(int depth){
-  if( depth<0 ){ depth = 0; }
-  if( depth>20 ){ depth = 20; }
-  depth = (depth+1)&0xfe;
-  mem.nBacktrace = depth;
-}
-
-SQLITE_PRIVATE void tdsqlite3MemdebugBacktraceCallback(void (*xBacktrace)(int, int, void **)){
-  mem.xBacktrace = xBacktrace;
-}
-
-/*
-** Set the title string for subsequent allocations.
-*/
-SQLITE_PRIVATE void tdsqlite3MemdebugSettitle(const char *zTitle){
-  unsigned int n = tdsqlite3Strlen30(zTitle) + 1;
-  tdsqlite3_mutex_enter(mem.mutex);
-  if( n>=sizeof(mem.zTitle) ) n = sizeof(mem.zTitle)-1;
-  memcpy(mem.zTitle, zTitle, n);
-  mem.zTitle[n] = 0;
-  mem.nTitle = ROUND8(n);
-  tdsqlite3_mutex_leave(mem.mutex);
-}
-
-SQLITE_PRIVATE void tdsqlite3MemdebugSync(){
-  struct MemBlockHdr *pHdr;
-  for(pHdr=mem.pFirst; pHdr; pHdr=pHdr->pNext){
-    void **pBt = (void**)pHdr;
-    pBt -= pHdr->nBacktraceSlots;
-    mem.xBacktrace((int)pHdr->iSize, pHdr->nBacktrace-1, &pBt[1]);
-  }
-}
-
-/*
-** Open the file indicated and write a log of all unfreed memory 
-** allocations into that log.
-*/
-SQLITE_PRIVATE void tdsqlite3MemdebugDump(const char *zFilename){
-  FILE *out;
-  struct MemBlockHdr *pHdr;
-  void **pBt;
-  int i;
-  out = fopen(zFilename, "w");
-  if( out==0 ){
-    fprintf(stderr, "** Unable to output memory debug output log: %s **\n",
-                    zFilename);
-    return;
-  }
-  for(pHdr=mem.pFirst; pHdr; pHdr=pHdr->pNext){
-    char *z = (char*)pHdr;
-    z -= pHdr->nBacktraceSlots*sizeof(void*) + pHdr->nTitle;
-    fprintf(out, "**** %lld bytes at %p from %s ****\n", 
-            pHdr->iSize, &pHdr[1], pHdr->nTitle ? z : "???");
-    if( pHdr->nBacktrace ){
-      fflush(out);
-      pBt = (void**)pHdr;
-      pBt -= pHdr->nBacktraceSlots;
-      backtrace_symbols_fd(pBt, pHdr->nBacktrace, fileno(out));
-      fprintf(out, "\n");
-    }
-  }
-  fprintf(out, "COUNTS:\n");
-  for(i=0; i<NCSIZE-1; i++){
-    if( mem.nAlloc[i] ){
-      fprintf(out, "   %5d: %10d %10d %10d\n", 
-            i*8, mem.nAlloc[i], mem.nCurrent[i], mem.mxCurrent[i]);
-    }
-  }
-  if( mem.nAlloc[NCSIZE-1] ){
-    fprintf(out, "   %5d: %10d %10d %10d\n",
-             NCSIZE*8-8, mem.nAlloc[NCSIZE-1],
-             mem.nCurrent[NCSIZE-1], mem.mxCurrent[NCSIZE-1]);
-  }
-  fclose(out);
-}
-
-/*
-** Return the number of times tdsqlite3MemMalloc() has been called.
-*/
-SQLITE_PRIVATE int tdsqlite3MemdebugMallocCount(){
-  int i;
-  int nTotal = 0;
-  for(i=0; i<NCSIZE; i++){
-    nTotal += mem.nAlloc[i];
-  }
-  return nTotal;
-}
-
-
-#endif /* SQLITE_MEMDEBUG */
-
-/************** End of mem2.c ************************************************/
-/************** Begin file mem3.c ********************************************/
-/*
-** 2007 October 14
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the C functions that implement a memory
-** allocation subsystem for use by SQLite. 
-**
-** This version of the memory allocation subsystem omits all
-** use of malloc(). The SQLite user supplies a block of memory
-** before calling tdsqlite3_initialize() from which allocations
-** are made and returned by the xMalloc() and xRealloc() 
-** implementations. Once tdsqlite3_initialize() has been called,
-** the amount of memory available to SQLite is fixed and cannot
-** be changed.
-**
-** This version of the memory allocation subsystem is included
-** in the build only if SQLITE_ENABLE_MEMSYS3 is defined.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** This version of the memory allocator is only built into the library
-** SQLITE_ENABLE_MEMSYS3 is defined. Defining this symbol does not
-** mean that the library will use a memory-pool by default, just that
-** it is available. The mempool allocator is activated by calling
-** tdsqlite3_config().
-*/
-#ifdef SQLITE_ENABLE_MEMSYS3
-
-/*
-** Maximum size (in Mem3Blocks) of a "small" chunk.
-*/
-#define MX_SMALL 10
-
-
-/*
-** Number of freelist hash slots
-*/
-#define N_HASH  61
-
-/*
-** A memory allocation (also called a "chunk") consists of two or 
-** more blocks where each block is 8 bytes.  The first 8 bytes are 
-** a header that is not returned to the user.
-**
-** A chunk is two or more blocks that is either checked out or
-** free.  The first block has format u.hdr.  u.hdr.size4x is 4 times the
-** size of the allocation in blocks if the allocation is free.
-** The u.hdr.size4x&1 bit is true if the chunk is checked out and
-** false if the chunk is on the freelist.  The u.hdr.size4x&2 bit
-** is true if the previous chunk is checked out and false if the
-** previous chunk is free.  The u.hdr.prevSize field is the size of
-** the previous chunk in blocks if the previous chunk is on the
-** freelist. If the previous chunk is checked out, then
-** u.hdr.prevSize can be part of the data for that chunk and should
-** not be read or written.
-**
-** We often identify a chunk by its index in mem3.aPool[].  When
-** this is done, the chunk index refers to the second block of
-** the chunk.  In this way, the first chunk has an index of 1.
-** A chunk index of 0 means "no such chunk" and is the equivalent
-** of a NULL pointer.
-**
-** The second block of free chunks is of the form u.list.  The
-** two fields form a double-linked list of chunks of related sizes.
-** Pointers to the head of the list are stored in mem3.aiSmall[] 
-** for smaller chunks and mem3.aiHash[] for larger chunks.
-**
-** The second block of a chunk is user data if the chunk is checked 
-** out.  If a chunk is checked out, the user data may extend into
-** the u.hdr.prevSize value of the following chunk.
-*/
-typedef struct Mem3Block Mem3Block;
-struct Mem3Block {
-  union {
-    struct {
-      u32 prevSize;   /* Size of previous chunk in Mem3Block elements */
-      u32 size4x;     /* 4x the size of current chunk in Mem3Block elements */
-    } hdr;
-    struct {
-      u32 next;       /* Index in mem3.aPool[] of next free chunk */
-      u32 prev;       /* Index in mem3.aPool[] of previous free chunk */
-    } list;
-  } u;
-};
-
-/*
-** All of the static variables used by this module are collected
-** into a single structure named "mem3".  This is to keep the
-** static variables organized and to reduce namespace pollution
-** when this module is combined with other in the amalgamation.
-*/
-static SQLITE_WSD struct Mem3Global {
-  /*
-  ** Memory available for allocation. nPool is the size of the array
-  ** (in Mem3Blocks) pointed to by aPool less 2.
-  */
-  u32 nPool;
-  Mem3Block *aPool;
-
-  /*
-  ** True if we are evaluating an out-of-memory callback.
-  */
-  int alarmBusy;
-  
-  /*
-  ** Mutex to control access to the memory allocation subsystem.
-  */
-  tdsqlite3_mutex *mutex;
-  
-  /*
-  ** The minimum amount of free space that we have seen.
-  */
-  u32 mnMaster;
-
-  /*
-  ** iMaster is the index of the master chunk.  Most new allocations
-  ** occur off of this chunk.  szMaster is the size (in Mem3Blocks)
-  ** of the current master.  iMaster is 0 if there is not master chunk.
-  ** The master chunk is not in either the aiHash[] or aiSmall[].
-  */
-  u32 iMaster;
-  u32 szMaster;
-
-  /*
-  ** Array of lists of free blocks according to the block size 
-  ** for smaller chunks, or a hash on the block size for larger
-  ** chunks.
-  */
-  u32 aiSmall[MX_SMALL-1];   /* For sizes 2 through MX_SMALL, inclusive */
-  u32 aiHash[N_HASH];        /* For sizes MX_SMALL+1 and larger */
-} mem3 = { 97535575 };
-
-#define mem3 GLOBAL(struct Mem3Global, mem3)
-
-/*
-** Unlink the chunk at mem3.aPool[i] from list it is currently
-** on.  *pRoot is the list that i is a member of.
-*/
-static void memsys3UnlinkFromList(u32 i, u32 *pRoot){
-  u32 next = mem3.aPool[i].u.list.next;
-  u32 prev = mem3.aPool[i].u.list.prev;
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  if( prev==0 ){
-    *pRoot = next;
-  }else{
-    mem3.aPool[prev].u.list.next = next;
-  }
-  if( next ){
-    mem3.aPool[next].u.list.prev = prev;
-  }
-  mem3.aPool[i].u.list.next = 0;
-  mem3.aPool[i].u.list.prev = 0;
-}
-
-/*
-** Unlink the chunk at index i from 
-** whatever list is currently a member of.
-*/
-static void memsys3Unlink(u32 i){
-  u32 size, hash;
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  assert( (mem3.aPool[i-1].u.hdr.size4x & 1)==0 );
-  assert( i>=1 );
-  size = mem3.aPool[i-1].u.hdr.size4x/4;
-  assert( size==mem3.aPool[i+size-1].u.hdr.prevSize );
-  assert( size>=2 );
-  if( size <= MX_SMALL ){
-    memsys3UnlinkFromList(i, &mem3.aiSmall[size-2]);
-  }else{
-    hash = size % N_HASH;
-    memsys3UnlinkFromList(i, &mem3.aiHash[hash]);
-  }
-}
-
-/*
-** Link the chunk at mem3.aPool[i] so that is on the list rooted
-** at *pRoot.
-*/
-static void memsys3LinkIntoList(u32 i, u32 *pRoot){
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  mem3.aPool[i].u.list.next = *pRoot;
-  mem3.aPool[i].u.list.prev = 0;
-  if( *pRoot ){
-    mem3.aPool[*pRoot].u.list.prev = i;
-  }
-  *pRoot = i;
-}
-
-/*
-** Link the chunk at index i into either the appropriate
-** small chunk list, or into the large chunk hash table.
-*/
-static void memsys3Link(u32 i){
-  u32 size, hash;
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  assert( i>=1 );
-  assert( (mem3.aPool[i-1].u.hdr.size4x & 1)==0 );
-  size = mem3.aPool[i-1].u.hdr.size4x/4;
-  assert( size==mem3.aPool[i+size-1].u.hdr.prevSize );
-  assert( size>=2 );
-  if( size <= MX_SMALL ){
-    memsys3LinkIntoList(i, &mem3.aiSmall[size-2]);
-  }else{
-    hash = size % N_HASH;
-    memsys3LinkIntoList(i, &mem3.aiHash[hash]);
-  }
-}
-
-/*
-** If the STATIC_MEM mutex is not already held, obtain it now. The mutex
-** will already be held (obtained by code in malloc.c) if
-** tdsqlite3GlobalConfig.bMemStat is true.
-*/
-static void memsys3Enter(void){
-  if( tdsqlite3GlobalConfig.bMemstat==0 && mem3.mutex==0 ){
-    mem3.mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM);
-  }
-  tdsqlite3_mutex_enter(mem3.mutex);
-}
-static void memsys3Leave(void){
-  tdsqlite3_mutex_leave(mem3.mutex);
-}
-
-/*
-** Called when we are unable to satisfy an allocation of nBytes.
-*/
-static void memsys3OutOfMemory(int nByte){
-  if( !mem3.alarmBusy ){
-    mem3.alarmBusy = 1;
-    assert( tdsqlite3_mutex_held(mem3.mutex) );
-    tdsqlite3_mutex_leave(mem3.mutex);
-    tdsqlite3_release_memory(nByte);
-    tdsqlite3_mutex_enter(mem3.mutex);
-    mem3.alarmBusy = 0;
-  }
-}
-
-
-/*
-** Chunk i is a free chunk that has been unlinked.  Adjust its 
-** size parameters for check-out and return a pointer to the 
-** user portion of the chunk.
-*/
-static void *memsys3Checkout(u32 i, u32 nBlock){
-  u32 x;
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  assert( i>=1 );
-  assert( mem3.aPool[i-1].u.hdr.size4x/4==nBlock );
-  assert( mem3.aPool[i+nBlock-1].u.hdr.prevSize==nBlock );
-  x = mem3.aPool[i-1].u.hdr.size4x;
-  mem3.aPool[i-1].u.hdr.size4x = nBlock*4 | 1 | (x&2);
-  mem3.aPool[i+nBlock-1].u.hdr.prevSize = nBlock;
-  mem3.aPool[i+nBlock-1].u.hdr.size4x |= 2;
-  return &mem3.aPool[i];
-}
-
-/*
-** Carve a piece off of the end of the mem3.iMaster free chunk.
-** Return a pointer to the new allocation.  Or, if the master chunk
-** is not large enough, return 0.
-*/
-static void *memsys3FromMaster(u32 nBlock){
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  assert( mem3.szMaster>=nBlock );
-  if( nBlock>=mem3.szMaster-1 ){
-    /* Use the entire master */
-    void *p = memsys3Checkout(mem3.iMaster, mem3.szMaster);
-    mem3.iMaster = 0;
-    mem3.szMaster = 0;
-    mem3.mnMaster = 0;
-    return p;
-  }else{
-    /* Split the master block.  Return the tail. */
-    u32 newi, x;
-    newi = mem3.iMaster + mem3.szMaster - nBlock;
-    assert( newi > mem3.iMaster+1 );
-    mem3.aPool[mem3.iMaster+mem3.szMaster-1].u.hdr.prevSize = nBlock;
-    mem3.aPool[mem3.iMaster+mem3.szMaster-1].u.hdr.size4x |= 2;
-    mem3.aPool[newi-1].u.hdr.size4x = nBlock*4 + 1;
-    mem3.szMaster -= nBlock;
-    mem3.aPool[newi-1].u.hdr.prevSize = mem3.szMaster;
-    x = mem3.aPool[mem3.iMaster-1].u.hdr.size4x & 2;
-    mem3.aPool[mem3.iMaster-1].u.hdr.size4x = mem3.szMaster*4 | x;
-    if( mem3.szMaster < mem3.mnMaster ){
-      mem3.mnMaster = mem3.szMaster;
-    }
-    return (void*)&mem3.aPool[newi];
-  }
-}
-
-/*
-** *pRoot is the head of a list of free chunks of the same size
-** or same size hash.  In other words, *pRoot is an entry in either
-** mem3.aiSmall[] or mem3.aiHash[].  
-**
-** This routine examines all entries on the given list and tries
-** to coalesce each entries with adjacent free chunks.  
-**
-** If it sees a chunk that is larger than mem3.iMaster, it replaces 
-** the current mem3.iMaster with the new larger chunk.  In order for
-** this mem3.iMaster replacement to work, the master chunk must be
-** linked into the hash tables.  That is not the normal state of
-** affairs, of course.  The calling routine must link the master
-** chunk before invoking this routine, then must unlink the (possibly
-** changed) master chunk once this routine has finished.
-*/
-static void memsys3Merge(u32 *pRoot){
-  u32 iNext, prev, size, i, x;
-
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  for(i=*pRoot; i>0; i=iNext){
-    iNext = mem3.aPool[i].u.list.next;
-    size = mem3.aPool[i-1].u.hdr.size4x;
-    assert( (size&1)==0 );
-    if( (size&2)==0 ){
-      memsys3UnlinkFromList(i, pRoot);
-      assert( i > mem3.aPool[i-1].u.hdr.prevSize );
-      prev = i - mem3.aPool[i-1].u.hdr.prevSize;
-      if( prev==iNext ){
-        iNext = mem3.aPool[prev].u.list.next;
-      }
-      memsys3Unlink(prev);
-      size = i + size/4 - prev;
-      x = mem3.aPool[prev-1].u.hdr.size4x & 2;
-      mem3.aPool[prev-1].u.hdr.size4x = size*4 | x;
-      mem3.aPool[prev+size-1].u.hdr.prevSize = size;
-      memsys3Link(prev);
-      i = prev;
-    }else{
-      size /= 4;
-    }
-    if( size>mem3.szMaster ){
-      mem3.iMaster = i;
-      mem3.szMaster = size;
-    }
-  }
-}
-
-/*
-** Return a block of memory of at least nBytes in size.
-** Return NULL if unable.
-**
-** This function assumes that the necessary mutexes, if any, are
-** already held by the caller. Hence "Unsafe".
-*/
-static void *memsys3MallocUnsafe(int nByte){
-  u32 i;
-  u32 nBlock;
-  u32 toFree;
-
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  assert( sizeof(Mem3Block)==8 );
-  if( nByte<=12 ){
-    nBlock = 2;
-  }else{
-    nBlock = (nByte + 11)/8;
-  }
-  assert( nBlock>=2 );
-
-  /* STEP 1:
-  ** Look for an entry of the correct size in either the small
-  ** chunk table or in the large chunk hash table.  This is
-  ** successful most of the time (about 9 times out of 10).
-  */
-  if( nBlock <= MX_SMALL ){
-    i = mem3.aiSmall[nBlock-2];
-    if( i>0 ){
-      memsys3UnlinkFromList(i, &mem3.aiSmall[nBlock-2]);
-      return memsys3Checkout(i, nBlock);
-    }
-  }else{
-    int hash = nBlock % N_HASH;
-    for(i=mem3.aiHash[hash]; i>0; i=mem3.aPool[i].u.list.next){
-      if( mem3.aPool[i-1].u.hdr.size4x/4==nBlock ){
-        memsys3UnlinkFromList(i, &mem3.aiHash[hash]);
-        return memsys3Checkout(i, nBlock);
-      }
-    }
-  }
-
-  /* STEP 2:
-  ** Try to satisfy the allocation by carving a piece off of the end
-  ** of the master chunk.  This step usually works if step 1 fails.
-  */
-  if( mem3.szMaster>=nBlock ){
-    return memsys3FromMaster(nBlock);
-  }
-
-
-  /* STEP 3:  
-  ** Loop through the entire memory pool.  Coalesce adjacent free
-  ** chunks.  Recompute the master chunk as the largest free chunk.
-  ** Then try again to satisfy the allocation by carving a piece off
-  ** of the end of the master chunk.  This step happens very
-  ** rarely (we hope!)
-  */
-  for(toFree=nBlock*16; toFree<(mem3.nPool*16); toFree *= 2){
-    memsys3OutOfMemory(toFree);
-    if( mem3.iMaster ){
-      memsys3Link(mem3.iMaster);
-      mem3.iMaster = 0;
-      mem3.szMaster = 0;
-    }
-    for(i=0; i<N_HASH; i++){
-      memsys3Merge(&mem3.aiHash[i]);
-    }
-    for(i=0; i<MX_SMALL-1; i++){
-      memsys3Merge(&mem3.aiSmall[i]);
-    }
-    if( mem3.szMaster ){
-      memsys3Unlink(mem3.iMaster);
-      if( mem3.szMaster>=nBlock ){
-        return memsys3FromMaster(nBlock);
-      }
-    }
-  }
-
-  /* If none of the above worked, then we fail. */
-  return 0;
-}
-
-/*
-** Free an outstanding memory allocation.
-**
-** This function assumes that the necessary mutexes, if any, are
-** already held by the caller. Hence "Unsafe".
-*/
-static void memsys3FreeUnsafe(void *pOld){
-  Mem3Block *p = (Mem3Block*)pOld;
-  int i;
-  u32 size, x;
-  assert( tdsqlite3_mutex_held(mem3.mutex) );
-  assert( p>mem3.aPool && p<&mem3.aPool[mem3.nPool] );
-  i = p - mem3.aPool;
-  assert( (mem3.aPool[i-1].u.hdr.size4x&1)==1 );
-  size = mem3.aPool[i-1].u.hdr.size4x/4;
-  assert( i+size<=mem3.nPool+1 );
-  mem3.aPool[i-1].u.hdr.size4x &= ~1;
-  mem3.aPool[i+size-1].u.hdr.prevSize = size;
-  mem3.aPool[i+size-1].u.hdr.size4x &= ~2;
-  memsys3Link(i);
-
-  /* Try to expand the master using the newly freed chunk */
-  if( mem3.iMaster ){
-    while( (mem3.aPool[mem3.iMaster-1].u.hdr.size4x&2)==0 ){
-      size = mem3.aPool[mem3.iMaster-1].u.hdr.prevSize;
-      mem3.iMaster -= size;
-      mem3.szMaster += size;
-      memsys3Unlink(mem3.iMaster);
-      x = mem3.aPool[mem3.iMaster-1].u.hdr.size4x & 2;
-      mem3.aPool[mem3.iMaster-1].u.hdr.size4x = mem3.szMaster*4 | x;
-      mem3.aPool[mem3.iMaster+mem3.szMaster-1].u.hdr.prevSize = mem3.szMaster;
-    }
-    x = mem3.aPool[mem3.iMaster-1].u.hdr.size4x & 2;
-    while( (mem3.aPool[mem3.iMaster+mem3.szMaster-1].u.hdr.size4x&1)==0 ){
-      memsys3Unlink(mem3.iMaster+mem3.szMaster);
-      mem3.szMaster += mem3.aPool[mem3.iMaster+mem3.szMaster-1].u.hdr.size4x/4;
-      mem3.aPool[mem3.iMaster-1].u.hdr.size4x = mem3.szMaster*4 | x;
-      mem3.aPool[mem3.iMaster+mem3.szMaster-1].u.hdr.prevSize = mem3.szMaster;
-    }
-  }
-}
-
-/*
-** Return the size of an outstanding allocation, in bytes.  The
-** size returned omits the 8-byte header overhead.  This only
-** works for chunks that are currently checked out.
-*/
-static int memsys3Size(void *p){
-  Mem3Block *pBlock;
-  assert( p!=0 );
-  pBlock = (Mem3Block*)p;
-  assert( (pBlock[-1].u.hdr.size4x&1)!=0 );
-  return (pBlock[-1].u.hdr.size4x&~3)*2 - 4;
-}
-
-/*
-** Round up a request size to the next valid allocation size.
-*/
-static int memsys3Roundup(int n){
-  if( n<=12 ){
-    return 12;
-  }else{
-    return ((n+11)&~7) - 4;
-  }
-}
-
-/*
-** Allocate nBytes of memory.
-*/
-static void *memsys3Malloc(int nBytes){
-  tdsqlite3_int64 *p;
-  assert( nBytes>0 );          /* malloc.c filters out 0 byte requests */
-  memsys3Enter();
-  p = memsys3MallocUnsafe(nBytes);
-  memsys3Leave();
-  return (void*)p; 
-}
-
-/*
-** Free memory.
-*/
-static void memsys3Free(void *pPrior){
-  assert( pPrior );
-  memsys3Enter();
-  memsys3FreeUnsafe(pPrior);
-  memsys3Leave();
-}
-
-/*
-** Change the size of an existing memory allocation
-*/
-static void *memsys3Realloc(void *pPrior, int nBytes){
-  int nOld;
-  void *p;
-  if( pPrior==0 ){
-    return tdsqlite3_malloc(nBytes);
-  }
-  if( nBytes<=0 ){
-    tdsqlite3_free(pPrior);
-    return 0;
-  }
-  nOld = memsys3Size(pPrior);
-  if( nBytes<=nOld && nBytes>=nOld-128 ){
-    return pPrior;
-  }
-  memsys3Enter();
-  p = memsys3MallocUnsafe(nBytes);
-  if( p ){
-    if( nOld<nBytes ){
-      memcpy(p, pPrior, nOld);
-    }else{
-      memcpy(p, pPrior, nBytes);
-    }
-    memsys3FreeUnsafe(pPrior);
-  }
-  memsys3Leave();
-  return p;
-}
-
-/*
-** Initialize this module.
-*/
-static int memsys3Init(void *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  if( !tdsqlite3GlobalConfig.pHeap ){
-    return SQLITE_ERROR;
-  }
-
-  /* Store a pointer to the memory block in global structure mem3. */
-  assert( sizeof(Mem3Block)==8 );
-  mem3.aPool = (Mem3Block *)tdsqlite3GlobalConfig.pHeap;
-  mem3.nPool = (tdsqlite3GlobalConfig.nHeap / sizeof(Mem3Block)) - 2;
-
-  /* Initialize the master block. */
-  mem3.szMaster = mem3.nPool;
-  mem3.mnMaster = mem3.szMaster;
-  mem3.iMaster = 1;
-  mem3.aPool[0].u.hdr.size4x = (mem3.szMaster<<2) + 2;
-  mem3.aPool[mem3.nPool].u.hdr.prevSize = mem3.nPool;
-  mem3.aPool[mem3.nPool].u.hdr.size4x = 1;
-
-  return SQLITE_OK;
-}
-
-/*
-** Deinitialize this module.
-*/
-static void memsys3Shutdown(void *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  mem3.mutex = 0;
-  return;
-}
-
-
-
-/*
-** Open the file indicated and write a log of all unfreed memory 
-** allocations into that log.
-*/
-SQLITE_PRIVATE void tdsqlite3Memsys3Dump(const char *zFilename){
-#ifdef SQLITE_DEBUG
-  FILE *out;
-  u32 i, j;
-  u32 size;
-  if( zFilename==0 || zFilename[0]==0 ){
-    out = stdout;
-  }else{
-    out = fopen(zFilename, "w");
-    if( out==0 ){
-      fprintf(stderr, "** Unable to output memory debug output log: %s **\n",
-                      zFilename);
-      return;
-    }
-  }
-  memsys3Enter();
-  fprintf(out, "CHUNKS:\n");
-  for(i=1; i<=mem3.nPool; i+=size/4){
-    size = mem3.aPool[i-1].u.hdr.size4x;
-    if( size/4<=1 ){
-      fprintf(out, "%p size error\n", &mem3.aPool[i]);
-      assert( 0 );
-      break;
-    }
-    if( (size&1)==0 && mem3.aPool[i+size/4-1].u.hdr.prevSize!=size/4 ){
-      fprintf(out, "%p tail size does not match\n", &mem3.aPool[i]);
-      assert( 0 );
-      break;
-    }
-    if( ((mem3.aPool[i+size/4-1].u.hdr.size4x&2)>>1)!=(size&1) ){
-      fprintf(out, "%p tail checkout bit is incorrect\n", &mem3.aPool[i]);
-      assert( 0 );
-      break;
-    }
-    if( size&1 ){
-      fprintf(out, "%p %6d bytes checked out\n", &mem3.aPool[i], (size/4)*8-8);
-    }else{
-      fprintf(out, "%p %6d bytes free%s\n", &mem3.aPool[i], (size/4)*8-8,
-                  i==mem3.iMaster ? " **master**" : "");
-    }
-  }
-  for(i=0; i<MX_SMALL-1; i++){
-    if( mem3.aiSmall[i]==0 ) continue;
-    fprintf(out, "small(%2d):", i);
-    for(j = mem3.aiSmall[i]; j>0; j=mem3.aPool[j].u.list.next){
-      fprintf(out, " %p(%d)", &mem3.aPool[j],
-              (mem3.aPool[j-1].u.hdr.size4x/4)*8-8);
-    }
-    fprintf(out, "\n"); 
-  }
-  for(i=0; i<N_HASH; i++){
-    if( mem3.aiHash[i]==0 ) continue;
-    fprintf(out, "hash(%2d):", i);
-    for(j = mem3.aiHash[i]; j>0; j=mem3.aPool[j].u.list.next){
-      fprintf(out, " %p(%d)", &mem3.aPool[j],
-              (mem3.aPool[j-1].u.hdr.size4x/4)*8-8);
-    }
-    fprintf(out, "\n"); 
-  }
-  fprintf(out, "master=%d\n", mem3.iMaster);
-  fprintf(out, "nowUsed=%d\n", mem3.nPool*8 - mem3.szMaster*8);
-  fprintf(out, "mxUsed=%d\n", mem3.nPool*8 - mem3.mnMaster*8);
-  tdsqlite3_mutex_leave(mem3.mutex);
-  if( out==stdout ){
-    fflush(stdout);
-  }else{
-    fclose(out);
-  }
-#else
-  UNUSED_PARAMETER(zFilename);
-#endif
-}
-
-/*
-** This routine is the only routine in this file with external 
-** linkage.
-**
-** Populate the low-level memory allocation function pointers in
-** tdsqlite3GlobalConfig.m with pointers to the routines in this file. The
-** arguments specify the block of memory to manage.
-**
-** This routine is only called by tdsqlite3_config(), and therefore
-** is not required to be threadsafe (it is not).
-*/
-SQLITE_PRIVATE const tdsqlite3_mem_methods *tdsqlite3MemGetMemsys3(void){
-  static const tdsqlite3_mem_methods mempoolMethods = {
-     memsys3Malloc,
-     memsys3Free,
-     memsys3Realloc,
-     memsys3Size,
-     memsys3Roundup,
-     memsys3Init,
-     memsys3Shutdown,
-     0
-  };
-  return &mempoolMethods;
-}
-
-#endif /* SQLITE_ENABLE_MEMSYS3 */
-
-/************** End of mem3.c ************************************************/
-/************** Begin file mem5.c ********************************************/
-/*
-** 2007 October 14
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the C functions that implement a memory
-** allocation subsystem for use by SQLite. 
-**
-** This version of the memory allocation subsystem omits all
-** use of malloc(). The application gives SQLite a block of memory
-** before calling tdsqlite3_initialize() from which allocations
-** are made and returned by the xMalloc() and xRealloc() 
-** implementations. Once tdsqlite3_initialize() has been called,
-** the amount of memory available to SQLite is fixed and cannot
-** be changed.
-**
-** This version of the memory allocation subsystem is included
-** in the build only if SQLITE_ENABLE_MEMSYS5 is defined.
-**
-** This memory allocator uses the following algorithm:
-**
-**   1.  All memory allocation sizes are rounded up to a power of 2.
-**
-**   2.  If two adjacent free blocks are the halves of a larger block,
-**       then the two blocks are coalesced into the single larger block.
-**
-**   3.  New memory is allocated from the first available free block.
-**
-** This algorithm is described in: J. M. Robson. "Bounds for Some Functions
-** Concerning Dynamic Storage Allocation". Journal of the Association for
-** Computing Machinery, Volume 21, Number 8, July 1974, pages 491-499.
-** 
-** Let n be the size of the largest allocation divided by the minimum
-** allocation size (after rounding all sizes up to a power of 2.)  Let M
-** be the maximum amount of memory ever outstanding at one time.  Let
-** N be the total amount of memory available for allocation.  Robson
-** proved that this memory allocator will never breakdown due to 
-** fragmentation as long as the following constraint holds:
-**
-**      N >=  M*(1 + log2(n)/2) - n + 1
-**
-** The tdsqlite3_status() logic tracks the maximum values of n and M so
-** that an application can, at any time, verify this constraint.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** This version of the memory allocator is used only when 
-** SQLITE_ENABLE_MEMSYS5 is defined.
-*/
-#ifdef SQLITE_ENABLE_MEMSYS5
-
-/*
-** A minimum allocation is an instance of the following structure.
-** Larger allocations are an array of these structures where the
-** size of the array is a power of 2.
-**
-** The size of this object must be a power of two.  That fact is
-** verified in memsys5Init().
-*/
-typedef struct Mem5Link Mem5Link;
-struct Mem5Link {
-  int next;       /* Index of next free chunk */
-  int prev;       /* Index of previous free chunk */
-};
-
-/*
-** Maximum size of any allocation is ((1<<LOGMAX)*mem5.szAtom). Since
-** mem5.szAtom is always at least 8 and 32-bit integers are used,
-** it is not actually possible to reach this limit.
-*/
-#define LOGMAX 30
-
-/*
-** Masks used for mem5.aCtrl[] elements.
-*/
-#define CTRL_LOGSIZE  0x1f    /* Log2 Size of this block */
-#define CTRL_FREE     0x20    /* True if not checked out */
-
-/*
-** All of the static variables used by this module are collected
-** into a single structure named "mem5".  This is to keep the
-** static variables organized and to reduce namespace pollution
-** when this module is combined with other in the amalgamation.
-*/
-static SQLITE_WSD struct Mem5Global {
-  /*
-  ** Memory available for allocation
-  */
-  int szAtom;      /* Smallest possible allocation in bytes */
-  int nBlock;      /* Number of szAtom sized blocks in zPool */
-  u8 *zPool;       /* Memory available to be allocated */
-  
-  /*
-  ** Mutex to control access to the memory allocation subsystem.
-  */
-  tdsqlite3_mutex *mutex;
-
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  /*
-  ** Performance statistics
-  */
-  u64 nAlloc;         /* Total number of calls to malloc */
-  u64 totalAlloc;     /* Total of all malloc calls - includes internal frag */
-  u64 totalExcess;    /* Total internal fragmentation */
-  u32 currentOut;     /* Current checkout, including internal fragmentation */
-  u32 currentCount;   /* Current number of distinct checkouts */
-  u32 maxOut;         /* Maximum instantaneous currentOut */
-  u32 maxCount;       /* Maximum instantaneous currentCount */
-  u32 maxRequest;     /* Largest allocation (exclusive of internal frag) */
-#endif
-  
-  /*
-  ** Lists of free blocks.  aiFreelist[0] is a list of free blocks of
-  ** size mem5.szAtom.  aiFreelist[1] holds blocks of size szAtom*2.
-  ** aiFreelist[2] holds free blocks of size szAtom*4.  And so forth.
-  */
-  int aiFreelist[LOGMAX+1];
-
-  /*
-  ** Space for tracking which blocks are checked out and the size
-  ** of each block.  One byte per block.
-  */
-  u8 *aCtrl;
-
-} mem5;
-
-/*
-** Access the static variable through a macro for SQLITE_OMIT_WSD.
-*/
-#define mem5 GLOBAL(struct Mem5Global, mem5)
-
-/*
-** Assuming mem5.zPool is divided up into an array of Mem5Link
-** structures, return a pointer to the idx-th such link.
-*/
-#define MEM5LINK(idx) ((Mem5Link *)(&mem5.zPool[(idx)*mem5.szAtom]))
-
-/*
-** Unlink the chunk at mem5.aPool[i] from list it is currently
-** on.  It should be found on mem5.aiFreelist[iLogsize].
-*/
-static void memsys5Unlink(int i, int iLogsize){
-  int next, prev;
-  assert( i>=0 && i<mem5.nBlock );
-  assert( iLogsize>=0 && iLogsize<=LOGMAX );
-  assert( (mem5.aCtrl[i] & CTRL_LOGSIZE)==iLogsize );
-
-  next = MEM5LINK(i)->next;
-  prev = MEM5LINK(i)->prev;
-  if( prev<0 ){
-    mem5.aiFreelist[iLogsize] = next;
-  }else{
-    MEM5LINK(prev)->next = next;
-  }
-  if( next>=0 ){
-    MEM5LINK(next)->prev = prev;
-  }
-}
-
-/*
-** Link the chunk at mem5.aPool[i] so that is on the iLogsize
-** free list.
-*/
-static void memsys5Link(int i, int iLogsize){
-  int x;
-  assert( tdsqlite3_mutex_held(mem5.mutex) );
-  assert( i>=0 && i<mem5.nBlock );
-  assert( iLogsize>=0 && iLogsize<=LOGMAX );
-  assert( (mem5.aCtrl[i] & CTRL_LOGSIZE)==iLogsize );
-
-  x = MEM5LINK(i)->next = mem5.aiFreelist[iLogsize];
-  MEM5LINK(i)->prev = -1;
-  if( x>=0 ){
-    assert( x<mem5.nBlock );
-    MEM5LINK(x)->prev = i;
-  }
-  mem5.aiFreelist[iLogsize] = i;
-}
-
-/*
-** Obtain or release the mutex needed to access global data structures.
-*/
-static void memsys5Enter(void){
-  tdsqlite3_mutex_enter(mem5.mutex);
-}
-static void memsys5Leave(void){
-  tdsqlite3_mutex_leave(mem5.mutex);
-}
-
-/*
-** Return the size of an outstanding allocation, in bytes.
-** This only works for chunks that are currently checked out.
-*/
-static int memsys5Size(void *p){
-  int iSize, i;
-  assert( p!=0 );
-  i = (int)(((u8 *)p-mem5.zPool)/mem5.szAtom);
-  assert( i>=0 && i<mem5.nBlock );
-  iSize = mem5.szAtom * (1 << (mem5.aCtrl[i]&CTRL_LOGSIZE));
-  return iSize;
-}
-
-/*
-** Return a block of memory of at least nBytes in size.
-** Return NULL if unable.  Return NULL if nBytes==0.
-**
-** The caller guarantees that nByte is positive.
-**
-** The caller has obtained a mutex prior to invoking this
-** routine so there is never any chance that two or more
-** threads can be in this routine at the same time.
-*/
-static void *memsys5MallocUnsafe(int nByte){
-  int i;           /* Index of a mem5.aPool[] slot */
-  int iBin;        /* Index into mem5.aiFreelist[] */
-  int iFullSz;     /* Size of allocation rounded up to power of 2 */
-  int iLogsize;    /* Log2 of iFullSz/POW2_MIN */
-
-  /* nByte must be a positive */
-  assert( nByte>0 );
-
-  /* No more than 1GiB per allocation */
-  if( nByte > 0x40000000 ) return 0;
-
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  /* Keep track of the maximum allocation request.  Even unfulfilled
-  ** requests are counted */
-  if( (u32)nByte>mem5.maxRequest ){
-    mem5.maxRequest = nByte;
-  }
-#endif
-
-
-  /* Round nByte up to the next valid power of two */
-  for(iFullSz=mem5.szAtom,iLogsize=0; iFullSz<nByte; iFullSz*=2,iLogsize++){}
-
-  /* Make sure mem5.aiFreelist[iLogsize] contains at least one free
-  ** block.  If not, then split a block of the next larger power of
-  ** two in order to create a new free block of size iLogsize.
-  */
-  for(iBin=iLogsize; iBin<=LOGMAX && mem5.aiFreelist[iBin]<0; iBin++){}
-  if( iBin>LOGMAX ){
-    testcase( tdsqlite3GlobalConfig.xLog!=0 );
-    tdsqlite3_log(SQLITE_NOMEM, "failed to allocate %u bytes", nByte);
-    return 0;
-  }
-  i = mem5.aiFreelist[iBin];
-  memsys5Unlink(i, iBin);
-  while( iBin>iLogsize ){
-    int newSize;
-
-    iBin--;
-    newSize = 1 << iBin;
-    mem5.aCtrl[i+newSize] = CTRL_FREE | iBin;
-    memsys5Link(i+newSize, iBin);
-  }
-  mem5.aCtrl[i] = iLogsize;
-
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  /* Update allocator performance statistics. */
-  mem5.nAlloc++;
-  mem5.totalAlloc += iFullSz;
-  mem5.totalExcess += iFullSz - nByte;
-  mem5.currentCount++;
-  mem5.currentOut += iFullSz;
-  if( mem5.maxCount<mem5.currentCount ) mem5.maxCount = mem5.currentCount;
-  if( mem5.maxOut<mem5.currentOut ) mem5.maxOut = mem5.currentOut;
-#endif
-
-#ifdef SQLITE_DEBUG
-  /* Make sure the allocated memory does not assume that it is set to zero
-  ** or retains a value from a previous allocation */
-  memset(&mem5.zPool[i*mem5.szAtom], 0xAA, iFullSz);
-#endif
-
-  /* Return a pointer to the allocated memory. */
-  return (void*)&mem5.zPool[i*mem5.szAtom];
-}
-
-/*
-** Free an outstanding memory allocation.
-*/
-static void memsys5FreeUnsafe(void *pOld){
-  u32 size, iLogsize;
-  int iBlock;
-
-  /* Set iBlock to the index of the block pointed to by pOld in 
-  ** the array of mem5.szAtom byte blocks pointed to by mem5.zPool.
-  */
-  iBlock = (int)(((u8 *)pOld-mem5.zPool)/mem5.szAtom);
-
-  /* Check that the pointer pOld points to a valid, non-free block. */
-  assert( iBlock>=0 && iBlock<mem5.nBlock );
-  assert( ((u8 *)pOld-mem5.zPool)%mem5.szAtom==0 );
-  assert( (mem5.aCtrl[iBlock] & CTRL_FREE)==0 );
-
-  iLogsize = mem5.aCtrl[iBlock] & CTRL_LOGSIZE;
-  size = 1<<iLogsize;
-  assert( iBlock+size-1<(u32)mem5.nBlock );
-
-  mem5.aCtrl[iBlock] |= CTRL_FREE;
-  mem5.aCtrl[iBlock+size-1] |= CTRL_FREE;
-
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  assert( mem5.currentCount>0 );
-  assert( mem5.currentOut>=(size*mem5.szAtom) );
-  mem5.currentCount--;
-  mem5.currentOut -= size*mem5.szAtom;
-  assert( mem5.currentOut>0 || mem5.currentCount==0 );
-  assert( mem5.currentCount>0 || mem5.currentOut==0 );
-#endif
-
-  mem5.aCtrl[iBlock] = CTRL_FREE | iLogsize;
-  while( ALWAYS(iLogsize<LOGMAX) ){
-    int iBuddy;
-    if( (iBlock>>iLogsize) & 1 ){
-      iBuddy = iBlock - size;
-      assert( iBuddy>=0 );
-    }else{
-      iBuddy = iBlock + size;
-      if( iBuddy>=mem5.nBlock ) break;
-    }
-    if( mem5.aCtrl[iBuddy]!=(CTRL_FREE | iLogsize) ) break;
-    memsys5Unlink(iBuddy, iLogsize);
-    iLogsize++;
-    if( iBuddy<iBlock ){
-      mem5.aCtrl[iBuddy] = CTRL_FREE | iLogsize;
-      mem5.aCtrl[iBlock] = 0;
-      iBlock = iBuddy;
-    }else{
-      mem5.aCtrl[iBlock] = CTRL_FREE | iLogsize;
-      mem5.aCtrl[iBuddy] = 0;
-    }
-    size *= 2;
-  }
-
-#ifdef SQLITE_DEBUG
-  /* Overwrite freed memory with the 0x55 bit pattern to verify that it is
-  ** not used after being freed */
-  memset(&mem5.zPool[iBlock*mem5.szAtom], 0x55, size);
-#endif
-
-  memsys5Link(iBlock, iLogsize);
-}
-
-/*
-** Allocate nBytes of memory.
-*/
-static void *memsys5Malloc(int nBytes){
-  tdsqlite3_int64 *p = 0;
-  if( nBytes>0 ){
-    memsys5Enter();
-    p = memsys5MallocUnsafe(nBytes);
-    memsys5Leave();
-  }
-  return (void*)p; 
-}
-
-/*
-** Free memory.
-**
-** The outer layer memory allocator prevents this routine from
-** being called with pPrior==0.
-*/
-static void memsys5Free(void *pPrior){
-  assert( pPrior!=0 );
-  memsys5Enter();
-  memsys5FreeUnsafe(pPrior);
-  memsys5Leave();  
-}
-
-/*
-** Change the size of an existing memory allocation.
-**
-** The outer layer memory allocator prevents this routine from
-** being called with pPrior==0.  
-**
-** nBytes is always a value obtained from a prior call to
-** memsys5Round().  Hence nBytes is always a non-negative power
-** of two.  If nBytes==0 that means that an oversize allocation
-** (an allocation larger than 0x40000000) was requested and this
-** routine should return 0 without freeing pPrior.
-*/
-static void *memsys5Realloc(void *pPrior, int nBytes){
-  int nOld;
-  void *p;
-  assert( pPrior!=0 );
-  assert( (nBytes&(nBytes-1))==0 );  /* EV: R-46199-30249 */
-  assert( nBytes>=0 );
-  if( nBytes==0 ){
-    return 0;
-  }
-  nOld = memsys5Size(pPrior);
-  if( nBytes<=nOld ){
-    return pPrior;
-  }
-  p = memsys5Malloc(nBytes);
-  if( p ){
-    memcpy(p, pPrior, nOld);
-    memsys5Free(pPrior);
-  }
-  return p;
-}
-
-/*
-** Round up a request size to the next valid allocation size.  If
-** the allocation is too large to be handled by this allocation system,
-** return 0.
-**
-** All allocations must be a power of two and must be expressed by a
-** 32-bit signed integer.  Hence the largest allocation is 0x40000000
-** or 1073741824 bytes.
-*/
-static int memsys5Roundup(int n){
-  int iFullSz;
-  if( n > 0x40000000 ) return 0;
-  for(iFullSz=mem5.szAtom; iFullSz<n; iFullSz *= 2);
-  return iFullSz;
-}
-
-/*
-** Return the ceiling of the logarithm base 2 of iValue.
-**
-** Examples:   memsys5Log(1) -> 0
-**             memsys5Log(2) -> 1
-**             memsys5Log(4) -> 2
-**             memsys5Log(5) -> 3
-**             memsys5Log(8) -> 3
-**             memsys5Log(9) -> 4
-*/
-static int memsys5Log(int iValue){
-  int iLog;
-  for(iLog=0; (iLog<(int)((sizeof(int)*8)-1)) && (1<<iLog)<iValue; iLog++);
-  return iLog;
-}
-
-/*
-** Initialize the memory allocator.
-**
-** This routine is not threadsafe.  The caller must be holding a mutex
-** to prevent multiple threads from entering at the same time.
-*/
-static int memsys5Init(void *NotUsed){
-  int ii;            /* Loop counter */
-  int nByte;         /* Number of bytes of memory available to this allocator */
-  u8 *zByte;         /* Memory usable by this allocator */
-  int nMinLog;       /* Log base 2 of minimum allocation size in bytes */
-  int iOffset;       /* An offset into mem5.aCtrl[] */
-
-  UNUSED_PARAMETER(NotUsed);
-
-  /* For the purposes of this routine, disable the mutex */
-  mem5.mutex = 0;
-
-  /* The size of a Mem5Link object must be a power of two.  Verify that
-  ** this is case.
-  */
-  assert( (sizeof(Mem5Link)&(sizeof(Mem5Link)-1))==0 );
-
-  nByte = tdsqlite3GlobalConfig.nHeap;
-  zByte = (u8*)tdsqlite3GlobalConfig.pHeap;
-  assert( zByte!=0 );  /* tdsqlite3_config() does not allow otherwise */
-
-  /* boundaries on tdsqlite3GlobalConfig.mnReq are enforced in tdsqlite3_config() */
-  nMinLog = memsys5Log(tdsqlite3GlobalConfig.mnReq);
-  mem5.szAtom = (1<<nMinLog);
-  while( (int)sizeof(Mem5Link)>mem5.szAtom ){
-    mem5.szAtom = mem5.szAtom << 1;
-  }
-
-  mem5.nBlock = (nByte / (mem5.szAtom+sizeof(u8)));
-  mem5.zPool = zByte;
-  mem5.aCtrl = (u8 *)&mem5.zPool[mem5.nBlock*mem5.szAtom];
-
-  for(ii=0; ii<=LOGMAX; ii++){
-    mem5.aiFreelist[ii] = -1;
-  }
-
-  iOffset = 0;
-  for(ii=LOGMAX; ii>=0; ii--){
-    int nAlloc = (1<<ii);
-    if( (iOffset+nAlloc)<=mem5.nBlock ){
-      mem5.aCtrl[iOffset] = ii | CTRL_FREE;
-      memsys5Link(iOffset, ii);
-      iOffset += nAlloc;
-    }
-    assert((iOffset+nAlloc)>mem5.nBlock);
-  }
-
-  /* If a mutex is required for normal operation, allocate one */
-  if( tdsqlite3GlobalConfig.bMemstat==0 ){
-    mem5.mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM);
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Deinitialize this module.
-*/
-static void memsys5Shutdown(void *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  mem5.mutex = 0;
-  return;
-}
-
-#ifdef SQLITE_TEST
-/*
-** Open the file indicated and write a log of all unfreed memory 
-** allocations into that log.
-*/
-SQLITE_PRIVATE void tdsqlite3Memsys5Dump(const char *zFilename){
-  FILE *out;
-  int i, j, n;
-  int nMinLog;
-
-  if( zFilename==0 || zFilename[0]==0 ){
-    out = stdout;
-  }else{
-    out = fopen(zFilename, "w");
-    if( out==0 ){
-      fprintf(stderr, "** Unable to output memory debug output log: %s **\n",
-                      zFilename);
-      return;
-    }
-  }
-  memsys5Enter();
-  nMinLog = memsys5Log(mem5.szAtom);
-  for(i=0; i<=LOGMAX && i+nMinLog<32; i++){
-    for(n=0, j=mem5.aiFreelist[i]; j>=0; j = MEM5LINK(j)->next, n++){}
-    fprintf(out, "freelist items of size %d: %d\n", mem5.szAtom << i, n);
-  }
-  fprintf(out, "mem5.nAlloc       = %llu\n", mem5.nAlloc);
-  fprintf(out, "mem5.totalAlloc   = %llu\n", mem5.totalAlloc);
-  fprintf(out, "mem5.totalExcess  = %llu\n", mem5.totalExcess);
-  fprintf(out, "mem5.currentOut   = %u\n", mem5.currentOut);
-  fprintf(out, "mem5.currentCount = %u\n", mem5.currentCount);
-  fprintf(out, "mem5.maxOut       = %u\n", mem5.maxOut);
-  fprintf(out, "mem5.maxCount     = %u\n", mem5.maxCount);
-  fprintf(out, "mem5.maxRequest   = %u\n", mem5.maxRequest);
-  memsys5Leave();
-  if( out==stdout ){
-    fflush(stdout);
-  }else{
-    fclose(out);
-  }
-}
-#endif
-
-/*
-** This routine is the only routine in this file with external 
-** linkage. It returns a pointer to a static tdsqlite3_mem_methods
-** struct populated with the memsys5 methods.
-*/
-SQLITE_PRIVATE const tdsqlite3_mem_methods *tdsqlite3MemGetMemsys5(void){
-  static const tdsqlite3_mem_methods memsys5Methods = {
-     memsys5Malloc,
-     memsys5Free,
-     memsys5Realloc,
-     memsys5Size,
-     memsys5Roundup,
-     memsys5Init,
-     memsys5Shutdown,
-     0
-  };
-  return &memsys5Methods;
-}
-
-#endif /* SQLITE_ENABLE_MEMSYS5 */
-
-/************** End of mem5.c ************************************************/
-/************** Begin file mutex.c *******************************************/
-/*
-** 2007 August 14
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the C functions that implement mutexes.
-**
-** This file contains code that is common across all mutex implementations.
-*/
-/* #include "sqliteInt.h" */
-
-#if defined(SQLITE_DEBUG) && !defined(SQLITE_MUTEX_OMIT)
-/*
-** For debugging purposes, record when the mutex subsystem is initialized
-** and uninitialized so that we can assert() if there is an attempt to
-** allocate a mutex while the system is uninitialized.
-*/
-static SQLITE_WSD int mutexIsInit = 0;
-#endif /* SQLITE_DEBUG && !defined(SQLITE_MUTEX_OMIT) */
-
-
-#ifndef SQLITE_MUTEX_OMIT
-
-#ifdef SQLITE_ENABLE_MULTITHREADED_CHECKS
-/*
-** This block (enclosed by SQLITE_ENABLE_MULTITHREADED_CHECKS) contains
-** the implementation of a wrapper around the system default mutex
-** implementation (tdsqlite3DefaultMutex()). 
-**
-** Most calls are passed directly through to the underlying default
-** mutex implementation. Except, if a mutex is configured by calling
-** tdsqlite3MutexWarnOnContention() on it, then if contention is ever
-** encountered within xMutexEnter() a warning is emitted via tdsqlite3_log().
-**
-** This type of mutex is used as the database handle mutex when testing
-** apps that usually use SQLITE_CONFIG_MULTITHREAD mode.
-*/
-
-/* 
-** Type for all mutexes used when SQLITE_ENABLE_MULTITHREADED_CHECKS
-** is defined. Variable CheckMutex.mutex is a pointer to the real mutex
-** allocated by the system mutex implementation. Variable iType is usually set
-** to the type of mutex requested - SQLITE_MUTEX_RECURSIVE, SQLITE_MUTEX_FAST
-** or one of the static mutex identifiers. Or, if this is a recursive mutex
-** that has been configured using tdsqlite3MutexWarnOnContention(), it is
-** set to SQLITE_MUTEX_WARNONCONTENTION.
-*/
-typedef struct CheckMutex CheckMutex;
-struct CheckMutex {
-  int iType;
-  tdsqlite3_mutex *mutex;
-};
-
-#define SQLITE_MUTEX_WARNONCONTENTION  (-1)
-
-/* 
-** Pointer to real mutex methods object used by the CheckMutex
-** implementation. Set by checkMutexInit(). 
-*/
-static SQLITE_WSD const tdsqlite3_mutex_methods *pGlobalMutexMethods;
-
-#ifdef SQLITE_DEBUG
-static int checkMutexHeld(tdsqlite3_mutex *p){
-  return pGlobalMutexMethods->xMutexHeld(((CheckMutex*)p)->mutex);
-}
-static int checkMutexNotheld(tdsqlite3_mutex *p){
-  return pGlobalMutexMethods->xMutexNotheld(((CheckMutex*)p)->mutex);
-}
-#endif
-
-/*
-** Initialize and deinitialize the mutex subsystem.
-*/
-static int checkMutexInit(void){ 
-  pGlobalMutexMethods = tdsqlite3DefaultMutex();
-  return SQLITE_OK; 
-}
-static int checkMutexEnd(void){ 
-  pGlobalMutexMethods = 0;
-  return SQLITE_OK; 
-}
-
-/*
-** Allocate a mutex.
-*/
-static tdsqlite3_mutex *checkMutexAlloc(int iType){
-  static CheckMutex staticMutexes[] = {
-    {2, 0}, {3, 0}, {4, 0}, {5, 0},
-    {6, 0}, {7, 0}, {8, 0}, {9, 0},
-    {10, 0}, {11, 0}, {12, 0}, {13, 0}
-  };
-  CheckMutex *p = 0;
-
-  assert( SQLITE_MUTEX_RECURSIVE==1 && SQLITE_MUTEX_FAST==0 );
-  if( iType<2 ){
-    p = tdsqlite3MallocZero(sizeof(CheckMutex));
-    if( p==0 ) return 0;
-    p->iType = iType;
-  }else{
-#ifdef SQLITE_ENABLE_API_ARMOR
-    if( iType-2>=ArraySize(staticMutexes) ){
-      (void)SQLITE_MISUSE_BKPT;
-      return 0;
-    }
-#endif
-    p = &staticMutexes[iType-2];
-  }
-
-  if( p->mutex==0 ){
-    p->mutex = pGlobalMutexMethods->xMutexAlloc(iType);
-    if( p->mutex==0 ){
-      if( iType<2 ){
-        tdsqlite3_free(p);
-      }
-      p = 0;
-    }
-  }
-
-  return (tdsqlite3_mutex*)p;
-}
-
-/*
-** Free a mutex.
-*/
-static void checkMutexFree(tdsqlite3_mutex *p){
-  assert( SQLITE_MUTEX_RECURSIVE<2 );
-  assert( SQLITE_MUTEX_FAST<2 );
-  assert( SQLITE_MUTEX_WARNONCONTENTION<2 );
-
-#if SQLITE_ENABLE_API_ARMOR
-  if( ((CheckMutex*)p)->iType<2 )
-#endif
-  {
-    CheckMutex *pCheck = (CheckMutex*)p;
-    pGlobalMutexMethods->xMutexFree(pCheck->mutex);
-    tdsqlite3_free(pCheck);
-  }
-#ifdef SQLITE_ENABLE_API_ARMOR
-  else{
-    (void)SQLITE_MISUSE_BKPT;
-  }
-#endif
-}
-
-/*
-** Enter the mutex.
-*/
-static void checkMutexEnter(tdsqlite3_mutex *p){
-  CheckMutex *pCheck = (CheckMutex*)p;
-  if( pCheck->iType==SQLITE_MUTEX_WARNONCONTENTION ){
-    if( SQLITE_OK==pGlobalMutexMethods->xMutexTry(pCheck->mutex) ){
-      return;
-    }
-    tdsqlite3_log(SQLITE_MISUSE, 
-        "illegal multi-threaded access to database connection"
-    );
-  }
-  pGlobalMutexMethods->xMutexEnter(pCheck->mutex);
-}
-
-/*
-** Enter the mutex (do not block).
-*/
-static int checkMutexTry(tdsqlite3_mutex *p){
-  CheckMutex *pCheck = (CheckMutex*)p;
-  return pGlobalMutexMethods->xMutexTry(pCheck->mutex);
-}
-
-/*
-** Leave the mutex.
-*/
-static void checkMutexLeave(tdsqlite3_mutex *p){
-  CheckMutex *pCheck = (CheckMutex*)p;
-  pGlobalMutexMethods->xMutexLeave(pCheck->mutex);
-}
-
-tdsqlite3_mutex_methods const *multiThreadedCheckMutex(void){
-  static const tdsqlite3_mutex_methods sMutex = {
-    checkMutexInit,
-    checkMutexEnd,
-    checkMutexAlloc,
-    checkMutexFree,
-    checkMutexEnter,
-    checkMutexTry,
-    checkMutexLeave,
-#ifdef SQLITE_DEBUG
-    checkMutexHeld,
-    checkMutexNotheld
-#else
-    0,
-    0
-#endif
-  };
-  return &sMutex;
-}
-
-/*
-** Mark the SQLITE_MUTEX_RECURSIVE mutex passed as the only argument as
-** one on which there should be no contention.
-*/
-SQLITE_PRIVATE void tdsqlite3MutexWarnOnContention(tdsqlite3_mutex *p){
-  if( tdsqlite3GlobalConfig.mutex.xMutexAlloc==checkMutexAlloc ){
-    CheckMutex *pCheck = (CheckMutex*)p;
-    assert( pCheck->iType==SQLITE_MUTEX_RECURSIVE );
-    pCheck->iType = SQLITE_MUTEX_WARNONCONTENTION;
-  }
-}
-#endif   /* ifdef SQLITE_ENABLE_MULTITHREADED_CHECKS */
-
-/*
-** Initialize the mutex system.
-*/
-SQLITE_PRIVATE int tdsqlite3MutexInit(void){ 
-  int rc = SQLITE_OK;
-  if( !tdsqlite3GlobalConfig.mutex.xMutexAlloc ){
-    /* If the xMutexAlloc method has not been set, then the user did not
-    ** install a mutex implementation via tdsqlite3_config() prior to 
-    ** tdsqlite3_initialize() being called. This block copies pointers to
-    ** the default implementation into the tdsqlite3GlobalConfig structure.
-    */
-    tdsqlite3_mutex_methods const *pFrom;
-    tdsqlite3_mutex_methods *pTo = &tdsqlite3GlobalConfig.mutex;
-
-    if( tdsqlite3GlobalConfig.bCoreMutex ){
-#ifdef SQLITE_ENABLE_MULTITHREADED_CHECKS
-      pFrom = multiThreadedCheckMutex();
-#else
-      pFrom = tdsqlite3DefaultMutex();
-#endif
-    }else{
-      pFrom = tdsqlite3NoopMutex();
-    }
-    pTo->xMutexInit = pFrom->xMutexInit;
-    pTo->xMutexEnd = pFrom->xMutexEnd;
-    pTo->xMutexFree = pFrom->xMutexFree;
-    pTo->xMutexEnter = pFrom->xMutexEnter;
-    pTo->xMutexTry = pFrom->xMutexTry;
-    pTo->xMutexLeave = pFrom->xMutexLeave;
-    pTo->xMutexHeld = pFrom->xMutexHeld;
-    pTo->xMutexNotheld = pFrom->xMutexNotheld;
-    tdsqlite3MemoryBarrier();
-    pTo->xMutexAlloc = pFrom->xMutexAlloc;
-  }
-  assert( tdsqlite3GlobalConfig.mutex.xMutexInit );
-  rc = tdsqlite3GlobalConfig.mutex.xMutexInit();
-
-#ifdef SQLITE_DEBUG
-  GLOBAL(int, mutexIsInit) = 1;
-#endif
-
-  return rc;
-}
-
-/*
-** Shutdown the mutex system. This call frees resources allocated by
-** tdsqlite3MutexInit().
-*/
-SQLITE_PRIVATE int tdsqlite3MutexEnd(void){
-  int rc = SQLITE_OK;
-  if( tdsqlite3GlobalConfig.mutex.xMutexEnd ){
-    rc = tdsqlite3GlobalConfig.mutex.xMutexEnd();
-  }
-
-#ifdef SQLITE_DEBUG
-  GLOBAL(int, mutexIsInit) = 0;
-#endif
-
-  return rc;
-}
-
-/*
-** Retrieve a pointer to a static mutex or allocate a new dynamic one.
-*/
-SQLITE_API tdsqlite3_mutex *tdsqlite3_mutex_alloc(int id){
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( id<=SQLITE_MUTEX_RECURSIVE && tdsqlite3_initialize() ) return 0;
-  if( id>SQLITE_MUTEX_RECURSIVE && tdsqlite3MutexInit() ) return 0;
-#endif
-  assert( tdsqlite3GlobalConfig.mutex.xMutexAlloc );
-  return tdsqlite3GlobalConfig.mutex.xMutexAlloc(id);
-}
-
-SQLITE_PRIVATE tdsqlite3_mutex *tdsqlite3MutexAlloc(int id){
-  if( !tdsqlite3GlobalConfig.bCoreMutex ){
-    return 0;
-  }
-  assert( GLOBAL(int, mutexIsInit) );
-  assert( tdsqlite3GlobalConfig.mutex.xMutexAlloc );
-  return tdsqlite3GlobalConfig.mutex.xMutexAlloc(id);
-}
-
-/*
-** Free a dynamic mutex.
-*/
-SQLITE_API void tdsqlite3_mutex_free(tdsqlite3_mutex *p){
-  if( p ){
-    assert( tdsqlite3GlobalConfig.mutex.xMutexFree );
-    tdsqlite3GlobalConfig.mutex.xMutexFree(p);
-  }
-}
-
-/*
-** Obtain the mutex p. If some other thread already has the mutex, block
-** until it can be obtained.
-*/
-SQLITE_API void tdsqlite3_mutex_enter(tdsqlite3_mutex *p){
-  if( p ){
-    assert( tdsqlite3GlobalConfig.mutex.xMutexEnter );
-    tdsqlite3GlobalConfig.mutex.xMutexEnter(p);
-  }
-}
-
-/*
-** Obtain the mutex p. If successful, return SQLITE_OK. Otherwise, if another
-** thread holds the mutex and it cannot be obtained, return SQLITE_BUSY.
-*/
-SQLITE_API int tdsqlite3_mutex_try(tdsqlite3_mutex *p){
-  int rc = SQLITE_OK;
-  if( p ){
-    assert( tdsqlite3GlobalConfig.mutex.xMutexTry );
-    return tdsqlite3GlobalConfig.mutex.xMutexTry(p);
-  }
-  return rc;
-}
-
-/*
-** The tdsqlite3_mutex_leave() routine exits a mutex that was previously
-** entered by the same thread.  The behavior is undefined if the mutex 
-** is not currently entered. If a NULL pointer is passed as an argument
-** this function is a no-op.
-*/
-SQLITE_API void tdsqlite3_mutex_leave(tdsqlite3_mutex *p){
-  if( p ){
-    assert( tdsqlite3GlobalConfig.mutex.xMutexLeave );
-    tdsqlite3GlobalConfig.mutex.xMutexLeave(p);
-  }
-}
-
-#ifndef NDEBUG
-/*
-** The tdsqlite3_mutex_held() and tdsqlite3_mutex_notheld() routine are
-** intended for use inside assert() statements.
-*/
-SQLITE_API int tdsqlite3_mutex_held(tdsqlite3_mutex *p){
-  assert( p==0 || tdsqlite3GlobalConfig.mutex.xMutexHeld );
-  return p==0 || tdsqlite3GlobalConfig.mutex.xMutexHeld(p);
-}
-SQLITE_API int tdsqlite3_mutex_notheld(tdsqlite3_mutex *p){
-  assert( p==0 || tdsqlite3GlobalConfig.mutex.xMutexNotheld );
-  return p==0 || tdsqlite3GlobalConfig.mutex.xMutexNotheld(p);
-}
-#endif
-
-#endif /* !defined(SQLITE_MUTEX_OMIT) */
-
-/************** End of mutex.c ***********************************************/
-/************** Begin file mutex_noop.c **************************************/
-/*
-** 2008 October 07
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the C functions that implement mutexes.
-**
-** This implementation in this file does not provide any mutual
-** exclusion and is thus suitable for use only in applications
-** that use SQLite in a single thread.  The routines defined
-** here are place-holders.  Applications can substitute working
-** mutex routines at start-time using the
-**
-**     tdsqlite3_config(SQLITE_CONFIG_MUTEX,...)
-**
-** interface.
-**
-** If compiled with SQLITE_DEBUG, then additional logic is inserted
-** that does error checking on mutexes to make sure they are being
-** called correctly.
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_MUTEX_OMIT
-
-#ifndef SQLITE_DEBUG
-/*
-** Stub routines for all mutex methods.
-**
-** This routines provide no mutual exclusion or error checking.
-*/
-static int noopMutexInit(void){ return SQLITE_OK; }
-static int noopMutexEnd(void){ return SQLITE_OK; }
-static tdsqlite3_mutex *noopMutexAlloc(int id){ 
-  UNUSED_PARAMETER(id);
-  return (tdsqlite3_mutex*)8; 
-}
-static void noopMutexFree(tdsqlite3_mutex *p){ UNUSED_PARAMETER(p); return; }
-static void noopMutexEnter(tdsqlite3_mutex *p){ UNUSED_PARAMETER(p); return; }
-static int noopMutexTry(tdsqlite3_mutex *p){
-  UNUSED_PARAMETER(p);
-  return SQLITE_OK;
-}
-static void noopMutexLeave(tdsqlite3_mutex *p){ UNUSED_PARAMETER(p); return; }
-
-SQLITE_PRIVATE tdsqlite3_mutex_methods const *tdsqlite3NoopMutex(void){
-  static const tdsqlite3_mutex_methods sMutex = {
-    noopMutexInit,
-    noopMutexEnd,
-    noopMutexAlloc,
-    noopMutexFree,
-    noopMutexEnter,
-    noopMutexTry,
-    noopMutexLeave,
-
-    0,
-    0,
-  };
-
-  return &sMutex;
-}
-#endif /* !SQLITE_DEBUG */
-
-#ifdef SQLITE_DEBUG
-/*
-** In this implementation, error checking is provided for testing
-** and debugging purposes.  The mutexes still do not provide any
-** mutual exclusion.
-*/
-
-/*
-** The mutex object
-*/
-typedef struct tdsqlite3_debug_mutex {
-  int id;     /* The mutex type */
-  int cnt;    /* Number of entries without a matching leave */
-} tdsqlite3_debug_mutex;
-
-/*
-** The tdsqlite3_mutex_held() and tdsqlite3_mutex_notheld() routine are
-** intended for use inside assert() statements.
-*/
-static int debugMutexHeld(tdsqlite3_mutex *pX){
-  tdsqlite3_debug_mutex *p = (tdsqlite3_debug_mutex*)pX;
-  return p==0 || p->cnt>0;
-}
-static int debugMutexNotheld(tdsqlite3_mutex *pX){
-  tdsqlite3_debug_mutex *p = (tdsqlite3_debug_mutex*)pX;
-  return p==0 || p->cnt==0;
-}
-
-/*
-** Initialize and deinitialize the mutex subsystem.
-*/
-static int debugMutexInit(void){ return SQLITE_OK; }
-static int debugMutexEnd(void){ return SQLITE_OK; }
-
-/*
-** The tdsqlite3_mutex_alloc() routine allocates a new
-** mutex and returns a pointer to it.  If it returns NULL
-** that means that a mutex could not be allocated. 
-*/
-static tdsqlite3_mutex *debugMutexAlloc(int id){
-  static tdsqlite3_debug_mutex aStatic[SQLITE_MUTEX_STATIC_VFS3 - 1];
-  tdsqlite3_debug_mutex *pNew = 0;
-  switch( id ){
-    case SQLITE_MUTEX_FAST:
-    case SQLITE_MUTEX_RECURSIVE: {
-      pNew = tdsqlite3Malloc(sizeof(*pNew));
-      if( pNew ){
-        pNew->id = id;
-        pNew->cnt = 0;
-      }
-      break;
-    }
-    default: {
-#ifdef SQLITE_ENABLE_API_ARMOR
-      if( id-2<0 || id-2>=ArraySize(aStatic) ){
-        (void)SQLITE_MISUSE_BKPT;
-        return 0;
-      }
-#endif
-      pNew = &aStatic[id-2];
-      pNew->id = id;
-      break;
-    }
-  }
-  return (tdsqlite3_mutex*)pNew;
-}
-
-/*
-** This routine deallocates a previously allocated mutex.
-*/
-static void debugMutexFree(tdsqlite3_mutex *pX){
-  tdsqlite3_debug_mutex *p = (tdsqlite3_debug_mutex*)pX;
-  assert( p->cnt==0 );
-  if( p->id==SQLITE_MUTEX_RECURSIVE || p->id==SQLITE_MUTEX_FAST ){
-    tdsqlite3_free(p);
-  }else{
-#ifdef SQLITE_ENABLE_API_ARMOR
-    (void)SQLITE_MISUSE_BKPT;
-#endif
-  }
-}
-
-/*
-** The tdsqlite3_mutex_enter() and tdsqlite3_mutex_try() routines attempt
-** to enter a mutex.  If another thread is already within the mutex,
-** tdsqlite3_mutex_enter() will block and tdsqlite3_mutex_try() will return
-** SQLITE_BUSY.  The tdsqlite3_mutex_try() interface returns SQLITE_OK
-** upon successful entry.  Mutexes created using SQLITE_MUTEX_RECURSIVE can
-** be entered multiple times by the same thread.  In such cases the,
-** mutex must be exited an equal number of times before another thread
-** can enter.  If the same thread tries to enter any other kind of mutex
-** more than once, the behavior is undefined.
-*/
-static void debugMutexEnter(tdsqlite3_mutex *pX){
-  tdsqlite3_debug_mutex *p = (tdsqlite3_debug_mutex*)pX;
-  assert( p->id==SQLITE_MUTEX_RECURSIVE || debugMutexNotheld(pX) );
-  p->cnt++;
-}
-static int debugMutexTry(tdsqlite3_mutex *pX){
-  tdsqlite3_debug_mutex *p = (tdsqlite3_debug_mutex*)pX;
-  assert( p->id==SQLITE_MUTEX_RECURSIVE || debugMutexNotheld(pX) );
-  p->cnt++;
-  return SQLITE_OK;
-}
-
-/*
-** The tdsqlite3_mutex_leave() routine exits a mutex that was
-** previously entered by the same thread.  The behavior
-** is undefined if the mutex is not currently entered or
-** is not currently allocated.  SQLite will never do either.
-*/
-static void debugMutexLeave(tdsqlite3_mutex *pX){
-  tdsqlite3_debug_mutex *p = (tdsqlite3_debug_mutex*)pX;
-  assert( debugMutexHeld(pX) );
-  p->cnt--;
-  assert( p->id==SQLITE_MUTEX_RECURSIVE || debugMutexNotheld(pX) );
-}
-
-SQLITE_PRIVATE tdsqlite3_mutex_methods const *tdsqlite3NoopMutex(void){
-  static const tdsqlite3_mutex_methods sMutex = {
-    debugMutexInit,
-    debugMutexEnd,
-    debugMutexAlloc,
-    debugMutexFree,
-    debugMutexEnter,
-    debugMutexTry,
-    debugMutexLeave,
-
-    debugMutexHeld,
-    debugMutexNotheld
-  };
-
-  return &sMutex;
-}
-#endif /* SQLITE_DEBUG */
-
-/*
-** If compiled with SQLITE_MUTEX_NOOP, then the no-op mutex implementation
-** is used regardless of the run-time threadsafety setting.
-*/
-#ifdef SQLITE_MUTEX_NOOP
-SQLITE_PRIVATE tdsqlite3_mutex_methods const *tdsqlite3DefaultMutex(void){
-  return tdsqlite3NoopMutex();
-}
-#endif /* defined(SQLITE_MUTEX_NOOP) */
-#endif /* !defined(SQLITE_MUTEX_OMIT) */
-
-/************** End of mutex_noop.c ******************************************/
-/************** Begin file mutex_unix.c **************************************/
-/*
-** 2007 August 28
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the C functions that implement mutexes for pthreads
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** The code in this file is only used if we are compiling threadsafe
-** under unix with pthreads.
-**
-** Note that this implementation requires a version of pthreads that
-** supports recursive mutexes.
-*/
-#ifdef SQLITE_MUTEX_PTHREADS
-
-#include <pthread.h>
-
-/*
-** The tdsqlite3_mutex.id, tdsqlite3_mutex.nRef, and tdsqlite3_mutex.owner fields
-** are necessary under two condidtions:  (1) Debug builds and (2) using
-** home-grown mutexes.  Encapsulate these conditions into a single #define.
-*/
-#if defined(SQLITE_DEBUG) || defined(SQLITE_HOMEGROWN_RECURSIVE_MUTEX)
-# define SQLITE_MUTEX_NREF 1
-#else
-# define SQLITE_MUTEX_NREF 0
-#endif
-
-/*
-** Each recursive mutex is an instance of the following structure.
-*/
-struct tdsqlite3_mutex {
-  pthread_mutex_t mutex;     /* Mutex controlling the lock */
-#if SQLITE_MUTEX_NREF || defined(SQLITE_ENABLE_API_ARMOR)
-  int id;                    /* Mutex type */
-#endif
-#if SQLITE_MUTEX_NREF
-  volatile int nRef;         /* Number of entrances */
-  volatile pthread_t owner;  /* Thread that is within this mutex */
-  int trace;                 /* True to trace changes */
-#endif
-};
-#if SQLITE_MUTEX_NREF
-# define SQLITE3_MUTEX_INITIALIZER(id) \
-     {PTHREAD_MUTEX_INITIALIZER,id,0,(pthread_t)0,0}
-#elif defined(SQLITE_ENABLE_API_ARMOR)
-# define SQLITE3_MUTEX_INITIALIZER(id) { PTHREAD_MUTEX_INITIALIZER, id }
-#else
-#define SQLITE3_MUTEX_INITIALIZER(id) { PTHREAD_MUTEX_INITIALIZER }
-#endif
-
-/*
-** The tdsqlite3_mutex_held() and tdsqlite3_mutex_notheld() routine are
-** intended for use only inside assert() statements.  On some platforms,
-** there might be race conditions that can cause these routines to
-** deliver incorrect results.  In particular, if pthread_equal() is
-** not an atomic operation, then these routines might delivery
-** incorrect results.  On most platforms, pthread_equal() is a 
-** comparison of two integers and is therefore atomic.  But we are
-** told that HPUX is not such a platform.  If so, then these routines
-** will not always work correctly on HPUX.
-**
-** On those platforms where pthread_equal() is not atomic, SQLite
-** should be compiled without -DSQLITE_DEBUG and with -DNDEBUG to
-** make sure no assert() statements are evaluated and hence these
-** routines are never called.
-*/
-#if !defined(NDEBUG) || defined(SQLITE_DEBUG)
-static int pthreadMutexHeld(tdsqlite3_mutex *p){
-  return (p->nRef!=0 && pthread_equal(p->owner, pthread_self()));
-}
-static int pthreadMutexNotheld(tdsqlite3_mutex *p){
-  return p->nRef==0 || pthread_equal(p->owner, pthread_self())==0;
-}
-#endif
-
-/*
-** Try to provide a memory barrier operation, needed for initialization
-** and also for the implementation of xShmBarrier in the VFS in cases
-** where SQLite is compiled without mutexes.
-*/
-SQLITE_PRIVATE void tdsqlite3MemoryBarrier(void){
-#if defined(SQLITE_MEMORY_BARRIER)
-  SQLITE_MEMORY_BARRIER;
-#elif defined(__GNUC__) && GCC_VERSION>=4001000
-  __sync_synchronize();
-#endif
-}
-
-/*
-** Initialize and deinitialize the mutex subsystem.
-*/
-static int pthreadMutexInit(void){ return SQLITE_OK; }
-static int pthreadMutexEnd(void){ return SQLITE_OK; }
-
-/*
-** The tdsqlite3_mutex_alloc() routine allocates a new
-** mutex and returns a pointer to it.  If it returns NULL
-** that means that a mutex could not be allocated.  SQLite
-** will unwind its stack and return an error.  The argument
-** to tdsqlite3_mutex_alloc() is one of these integer constants:
-**
-** <ul>
-** <li>  SQLITE_MUTEX_FAST
-** <li>  SQLITE_MUTEX_RECURSIVE
-** <li>  SQLITE_MUTEX_STATIC_MASTER
-** <li>  SQLITE_MUTEX_STATIC_MEM
-** <li>  SQLITE_MUTEX_STATIC_OPEN
-** <li>  SQLITE_MUTEX_STATIC_PRNG
-** <li>  SQLITE_MUTEX_STATIC_LRU
-** <li>  SQLITE_MUTEX_STATIC_PMEM
-** <li>  SQLITE_MUTEX_STATIC_APP1
-** <li>  SQLITE_MUTEX_STATIC_APP2
-** <li>  SQLITE_MUTEX_STATIC_APP3
-** <li>  SQLITE_MUTEX_STATIC_VFS1
-** <li>  SQLITE_MUTEX_STATIC_VFS2
-** <li>  SQLITE_MUTEX_STATIC_VFS3
-** </ul>
-**
-** The first two constants cause tdsqlite3_mutex_alloc() to create
-** a new mutex.  The new mutex is recursive when SQLITE_MUTEX_RECURSIVE
-** is used but not necessarily so when SQLITE_MUTEX_FAST is used.
-** The mutex implementation does not need to make a distinction
-** between SQLITE_MUTEX_RECURSIVE and SQLITE_MUTEX_FAST if it does
-** not want to.  But SQLite will only request a recursive mutex in
-** cases where it really needs one.  If a faster non-recursive mutex
-** implementation is available on the host platform, the mutex subsystem
-** might return such a mutex in response to SQLITE_MUTEX_FAST.
-**
-** The other allowed parameters to tdsqlite3_mutex_alloc() each return
-** a pointer to a static preexisting mutex.  Six static mutexes are
-** used by the current version of SQLite.  Future versions of SQLite
-** may add additional static mutexes.  Static mutexes are for internal
-** use by SQLite only.  Applications that use SQLite mutexes should
-** use only the dynamic mutexes returned by SQLITE_MUTEX_FAST or
-** SQLITE_MUTEX_RECURSIVE.
-**
-** Note that if one of the dynamic mutex parameters (SQLITE_MUTEX_FAST
-** or SQLITE_MUTEX_RECURSIVE) is used then tdsqlite3_mutex_alloc()
-** returns a different mutex on every call.  But for the static 
-** mutex types, the same mutex is returned on every call that has
-** the same type number.
-*/
-static tdsqlite3_mutex *pthreadMutexAlloc(int iType){
-  static tdsqlite3_mutex staticMutexes[] = {
-    SQLITE3_MUTEX_INITIALIZER(2),
-    SQLITE3_MUTEX_INITIALIZER(3),
-    SQLITE3_MUTEX_INITIALIZER(4),
-    SQLITE3_MUTEX_INITIALIZER(5),
-    SQLITE3_MUTEX_INITIALIZER(6),
-    SQLITE3_MUTEX_INITIALIZER(7),
-    SQLITE3_MUTEX_INITIALIZER(8),
-    SQLITE3_MUTEX_INITIALIZER(9),
-    SQLITE3_MUTEX_INITIALIZER(10),
-    SQLITE3_MUTEX_INITIALIZER(11),
-    SQLITE3_MUTEX_INITIALIZER(12),
-    SQLITE3_MUTEX_INITIALIZER(13)
-  };
-  tdsqlite3_mutex *p;
-  switch( iType ){
-    case SQLITE_MUTEX_RECURSIVE: {
-      p = tdsqlite3MallocZero( sizeof(*p) );
-      if( p ){
-#ifdef SQLITE_HOMEGROWN_RECURSIVE_MUTEX
-        /* If recursive mutexes are not available, we will have to
-        ** build our own.  See below. */
-        pthread_mutex_init(&p->mutex, 0);
-#else
-        /* Use a recursive mutex if it is available */
-        pthread_mutexattr_t recursiveAttr;
-        pthread_mutexattr_init(&recursiveAttr);
-        pthread_mutexattr_settype(&recursiveAttr, PTHREAD_MUTEX_RECURSIVE);
-        pthread_mutex_init(&p->mutex, &recursiveAttr);
-        pthread_mutexattr_destroy(&recursiveAttr);
-#endif
-#if SQLITE_MUTEX_NREF || defined(SQLITE_ENABLE_API_ARMOR)
-        p->id = SQLITE_MUTEX_RECURSIVE;
-#endif
-      }
-      break;
-    }
-    case SQLITE_MUTEX_FAST: {
-      p = tdsqlite3MallocZero( sizeof(*p) );
-      if( p ){
-        pthread_mutex_init(&p->mutex, 0);
-#if SQLITE_MUTEX_NREF || defined(SQLITE_ENABLE_API_ARMOR)
-        p->id = SQLITE_MUTEX_FAST;
-#endif
-      }
-      break;
-    }
-    default: {
-#ifdef SQLITE_ENABLE_API_ARMOR
-      if( iType-2<0 || iType-2>=ArraySize(staticMutexes) ){
-        (void)SQLITE_MISUSE_BKPT;
-        return 0;
-      }
-#endif
-      p = &staticMutexes[iType-2];
-      break;
-    }
-  }
-#if SQLITE_MUTEX_NREF || defined(SQLITE_ENABLE_API_ARMOR)
-  assert( p==0 || p->id==iType );
-#endif
-  return p;
-}
-
-
-/*
-** This routine deallocates a previously
-** allocated mutex.  SQLite is careful to deallocate every
-** mutex that it allocates.
-*/
-static void pthreadMutexFree(tdsqlite3_mutex *p){
-  assert( p->nRef==0 );
-#if SQLITE_ENABLE_API_ARMOR
-  if( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE )
-#endif
-  {
-    pthread_mutex_destroy(&p->mutex);
-    tdsqlite3_free(p);
-  }
-#ifdef SQLITE_ENABLE_API_ARMOR
-  else{
-    (void)SQLITE_MISUSE_BKPT;
-  }
-#endif
-}
-
-/*
-** The tdsqlite3_mutex_enter() and tdsqlite3_mutex_try() routines attempt
-** to enter a mutex.  If another thread is already within the mutex,
-** tdsqlite3_mutex_enter() will block and tdsqlite3_mutex_try() will return
-** SQLITE_BUSY.  The tdsqlite3_mutex_try() interface returns SQLITE_OK
-** upon successful entry.  Mutexes created using SQLITE_MUTEX_RECURSIVE can
-** be entered multiple times by the same thread.  In such cases the,
-** mutex must be exited an equal number of times before another thread
-** can enter.  If the same thread tries to enter any other kind of mutex
-** more than once, the behavior is undefined.
-*/
-static void pthreadMutexEnter(tdsqlite3_mutex *p){
-  assert( p->id==SQLITE_MUTEX_RECURSIVE || pthreadMutexNotheld(p) );
-
-#ifdef SQLITE_HOMEGROWN_RECURSIVE_MUTEX
-  /* If recursive mutexes are not available, then we have to grow
-  ** our own.  This implementation assumes that pthread_equal()
-  ** is atomic - that it cannot be deceived into thinking self
-  ** and p->owner are equal if p->owner changes between two values
-  ** that are not equal to self while the comparison is taking place.
-  ** This implementation also assumes a coherent cache - that 
-  ** separate processes cannot read different values from the same
-  ** address at the same time.  If either of these two conditions
-  ** are not met, then the mutexes will fail and problems will result.
-  */
-  {
-    pthread_t self = pthread_self();
-    if( p->nRef>0 && pthread_equal(p->owner, self) ){
-      p->nRef++;
-    }else{
-      pthread_mutex_lock(&p->mutex);
-      assert( p->nRef==0 );
-      p->owner = self;
-      p->nRef = 1;
-    }
-  }
-#else
-  /* Use the built-in recursive mutexes if they are available.
-  */
-  pthread_mutex_lock(&p->mutex);
-#if SQLITE_MUTEX_NREF
-  assert( p->nRef>0 || p->owner==0 );
-  p->owner = pthread_self();
-  p->nRef++;
-#endif
-#endif
-
-#ifdef SQLITE_DEBUG
-  if( p->trace ){
-    printf("enter mutex %p (%d) with nRef=%d\n", p, p->trace, p->nRef);
-  }
-#endif
-}
-static int pthreadMutexTry(tdsqlite3_mutex *p){
-  int rc;
-  assert( p->id==SQLITE_MUTEX_RECURSIVE || pthreadMutexNotheld(p) );
-
-#ifdef SQLITE_HOMEGROWN_RECURSIVE_MUTEX
-  /* If recursive mutexes are not available, then we have to grow
-  ** our own.  This implementation assumes that pthread_equal()
-  ** is atomic - that it cannot be deceived into thinking self
-  ** and p->owner are equal if p->owner changes between two values
-  ** that are not equal to self while the comparison is taking place.
-  ** This implementation also assumes a coherent cache - that 
-  ** separate processes cannot read different values from the same
-  ** address at the same time.  If either of these two conditions
-  ** are not met, then the mutexes will fail and problems will result.
-  */
-  {
-    pthread_t self = pthread_self();
-    if( p->nRef>0 && pthread_equal(p->owner, self) ){
-      p->nRef++;
-      rc = SQLITE_OK;
-    }else if( pthread_mutex_trylock(&p->mutex)==0 ){
-      assert( p->nRef==0 );
-      p->owner = self;
-      p->nRef = 1;
-      rc = SQLITE_OK;
-    }else{
-      rc = SQLITE_BUSY;
-    }
-  }
-#else
-  /* Use the built-in recursive mutexes if they are available.
-  */
-  if( pthread_mutex_trylock(&p->mutex)==0 ){
-#if SQLITE_MUTEX_NREF
-    p->owner = pthread_self();
-    p->nRef++;
-#endif
-    rc = SQLITE_OK;
-  }else{
-    rc = SQLITE_BUSY;
-  }
-#endif
-
-#ifdef SQLITE_DEBUG
-  if( rc==SQLITE_OK && p->trace ){
-    printf("enter mutex %p (%d) with nRef=%d\n", p, p->trace, p->nRef);
-  }
-#endif
-  return rc;
-}
-
-/*
-** The tdsqlite3_mutex_leave() routine exits a mutex that was
-** previously entered by the same thread.  The behavior
-** is undefined if the mutex is not currently entered or
-** is not currently allocated.  SQLite will never do either.
-*/
-static void pthreadMutexLeave(tdsqlite3_mutex *p){
-  assert( pthreadMutexHeld(p) );
-#if SQLITE_MUTEX_NREF
-  p->nRef--;
-  if( p->nRef==0 ) p->owner = 0;
-#endif
-  assert( p->nRef==0 || p->id==SQLITE_MUTEX_RECURSIVE );
-
-#ifdef SQLITE_HOMEGROWN_RECURSIVE_MUTEX
-  if( p->nRef==0 ){
-    pthread_mutex_unlock(&p->mutex);
-  }
-#else
-  pthread_mutex_unlock(&p->mutex);
-#endif
-
-#ifdef SQLITE_DEBUG
-  if( p->trace ){
-    printf("leave mutex %p (%d) with nRef=%d\n", p, p->trace, p->nRef);
-  }
-#endif
-}
-
-SQLITE_PRIVATE tdsqlite3_mutex_methods const *tdsqlite3DefaultMutex(void){
-  static const tdsqlite3_mutex_methods sMutex = {
-    pthreadMutexInit,
-    pthreadMutexEnd,
-    pthreadMutexAlloc,
-    pthreadMutexFree,
-    pthreadMutexEnter,
-    pthreadMutexTry,
-    pthreadMutexLeave,
-#ifdef SQLITE_DEBUG
-    pthreadMutexHeld,
-    pthreadMutexNotheld
-#else
-    0,
-    0
-#endif
-  };
-
-  return &sMutex;
-}
-
-#endif /* SQLITE_MUTEX_PTHREADS */
-
-/************** End of mutex_unix.c ******************************************/
-/************** Begin file mutex_w32.c ***************************************/
-/*
-** 2007 August 14
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the C functions that implement mutexes for Win32.
-*/
-/* #include "sqliteInt.h" */
-
-#if SQLITE_OS_WIN
-/*
-** Include code that is common to all os_*.c files
-*/
-/************** Include os_common.h in the middle of mutex_w32.c *************/
-/************** Begin file os_common.h ***************************************/
-/*
-** 2004 May 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains macros and a little bit of code that is common to
-** all of the platform-specific files (os_*.c) and is #included into those
-** files.
-**
-** This file should be #included by the os_*.c files only.  It is not a
-** general purpose header file.
-*/
-#ifndef _OS_COMMON_H_
-#define _OS_COMMON_H_
-
-/*
-** At least two bugs have slipped in because we changed the MEMORY_DEBUG
-** macro to SQLITE_DEBUG and some older makefiles have not yet made the
-** switch.  The following code should catch this problem at compile-time.
-*/
-#ifdef MEMORY_DEBUG
-# error "The MEMORY_DEBUG macro is obsolete.  Use SQLITE_DEBUG instead."
-#endif
-
-/*
-** Macros for performance tracing.  Normally turned off.  Only works
-** on i486 hardware.
-*/
-#ifdef SQLITE_PERFORMANCE_TRACE
-
-/*
-** hwtime.h contains inline assembler code for implementing
-** high-performance timing routines.
-*/
-/************** Include hwtime.h in the middle of os_common.h ****************/
-/************** Begin file hwtime.h ******************************************/
-/*
-** 2008 May 27
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains inline asm code for retrieving "high-performance"
-** counters for x86 and x86_64 class CPUs.
-*/
-#ifndef SQLITE_HWTIME_H
-#define SQLITE_HWTIME_H
-
-/*
-** The following routine only works on pentium-class (or newer) processors.
-** It uses the RDTSC opcode to read the cycle count value out of the
-** processor and returns that value.  This can be used for high-res
-** profiling.
-*/
-#if !defined(__STRICT_ANSI__) && \
-    (defined(__GNUC__) || defined(_MSC_VER)) && \
-    (defined(i386) || defined(__i386__) || defined(_M_IX86))
-
-  #if defined(__GNUC__)
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-     unsigned int lo, hi;
-     __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
-     return (sqlite_uint64)hi << 32 | lo;
-  }
-
-  #elif defined(_MSC_VER)
-
-  __declspec(naked) __inline sqlite_uint64 __cdecl tdsqlite3Hwtime(void){
-     __asm {
-        rdtsc
-        ret       ; return value at EDX:EAX
-     }
-  }
-
-  #endif
-
-#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__x86_64__))
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-      unsigned long val;
-      __asm__ __volatile__ ("rdtsc" : "=A" (val));
-      return val;
-  }
- 
-#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__ppc__))
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-      unsigned long long retval;
-      unsigned long junk;
-      __asm__ __volatile__ ("\n\
-          1:      mftbu   %1\n\
-                  mftb    %L0\n\
-                  mftbu   %0\n\
-                  cmpw    %0,%1\n\
-                  bne     1b"
-                  : "=r" (retval), "=r" (junk));
-      return retval;
-  }
-
-#else
-
-  /*
-  ** asm() is needed for hardware timing support.  Without asm(),
-  ** disable the tdsqlite3Hwtime() routine.
-  **
-  ** tdsqlite3Hwtime() is only used for some obscure debugging
-  ** and analysis configurations, not in any deliverable, so this
-  ** should not be a great loss.
-  */
-SQLITE_PRIVATE   sqlite_uint64 tdsqlite3Hwtime(void){ return ((sqlite_uint64)0); }
-
-#endif
-
-#endif /* !defined(SQLITE_HWTIME_H) */
-
-/************** End of hwtime.h **********************************************/
-/************** Continuing where we left off in os_common.h ******************/
-
-static sqlite_uint64 g_start;
-static sqlite_uint64 g_elapsed;
-#define TIMER_START       g_start=tdsqlite3Hwtime()
-#define TIMER_END         g_elapsed=tdsqlite3Hwtime()-g_start
-#define TIMER_ELAPSED     g_elapsed
-#else
-#define TIMER_START
-#define TIMER_END
-#define TIMER_ELAPSED     ((sqlite_uint64)0)
-#endif
-
-/*
-** If we compile with the SQLITE_TEST macro set, then the following block
-** of code will give us the ability to simulate a disk I/O error.  This
-** is used for testing the I/O recovery logic.
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API extern int tdsqlite3_io_error_hit;
-SQLITE_API extern int tdsqlite3_io_error_hardhit;
-SQLITE_API extern int tdsqlite3_io_error_pending;
-SQLITE_API extern int tdsqlite3_io_error_persist;
-SQLITE_API extern int tdsqlite3_io_error_benign;
-SQLITE_API extern int tdsqlite3_diskfull_pending;
-SQLITE_API extern int tdsqlite3_diskfull;
-#define SimulateIOErrorBenign(X) tdsqlite3_io_error_benign=(X)
-#define SimulateIOError(CODE)  \
-  if( (tdsqlite3_io_error_persist && tdsqlite3_io_error_hit) \
-       || tdsqlite3_io_error_pending-- == 1 )  \
-              { local_ioerr(); CODE; }
-static void local_ioerr(){
-  IOTRACE(("IOERR\n"));
-  tdsqlite3_io_error_hit++;
-  if( !tdsqlite3_io_error_benign ) tdsqlite3_io_error_hardhit++;
-}
-#define SimulateDiskfullError(CODE) \
-   if( tdsqlite3_diskfull_pending ){ \
-     if( tdsqlite3_diskfull_pending == 1 ){ \
-       local_ioerr(); \
-       tdsqlite3_diskfull = 1; \
-       tdsqlite3_io_error_hit = 1; \
-       CODE; \
-     }else{ \
-       tdsqlite3_diskfull_pending--; \
-     } \
-   }
-#else
-#define SimulateIOErrorBenign(X)
-#define SimulateIOError(A)
-#define SimulateDiskfullError(A)
-#endif /* defined(SQLITE_TEST) */
-
-/*
-** When testing, keep a count of the number of open files.
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API extern int tdsqlite3_open_file_count;
-#define OpenCounter(X)  tdsqlite3_open_file_count+=(X)
-#else
-#define OpenCounter(X)
-#endif /* defined(SQLITE_TEST) */
-
-#endif /* !defined(_OS_COMMON_H_) */
-
-/************** End of os_common.h *******************************************/
-/************** Continuing where we left off in mutex_w32.c ******************/
-
-/*
-** Include the header file for the Windows VFS.
-*/
-/************** Include os_win.h in the middle of mutex_w32.c ****************/
-/************** Begin file os_win.h ******************************************/
-/*
-** 2013 November 25
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains code that is specific to Windows.
-*/
-#ifndef SQLITE_OS_WIN_H
-#define SQLITE_OS_WIN_H
-
-/*
-** Include the primary Windows SDK header file.
-*/
-/* #include "windows.h" */
-
-#ifdef __CYGWIN__
-# define NOCRYPT
-# include <windows.h>
-
-# include <sys/cygwin.h>
-/* # include <errno.h> ** amalgamator: dontcache ** */
-#endif
-
-/*
-** Determine if we are dealing with Windows NT.
-**
-** We ought to be able to determine if we are compiling for Windows 9x or
-** Windows NT using the _WIN32_WINNT macro as follows:
-**
-** #if defined(_WIN32_WINNT)
-** # define SQLITE_OS_WINNT 1
-** #else
-** # define SQLITE_OS_WINNT 0
-** #endif
-**
-** However, Visual Studio 2005 does not set _WIN32_WINNT by default, as
-** it ought to, so the above test does not work.  We'll just assume that
-** everything is Windows NT unless the programmer explicitly says otherwise
-** by setting SQLITE_OS_WINNT to 0.
-*/
-#if SQLITE_OS_WIN && !defined(SQLITE_OS_WINNT)
-# define SQLITE_OS_WINNT 1
-#endif
-
-/*
-** Determine if we are dealing with Windows CE - which has a much reduced
-** API.
-*/
-#if defined(_WIN32_WCE)
-# define SQLITE_OS_WINCE 1
-#else
-# define SQLITE_OS_WINCE 0
-#endif
-
-/*
-** Determine if we are dealing with WinRT, which provides only a subset of
-** the full Win32 API.
-*/
-#if !defined(SQLITE_OS_WINRT)
-# define SQLITE_OS_WINRT 0
-#endif
-
-/*
-** For WinCE, some API function parameters do not appear to be declared as
-** volatile.
-*/
-#if SQLITE_OS_WINCE
-# define SQLITE_WIN32_VOLATILE
-#else
-# define SQLITE_WIN32_VOLATILE volatile
-#endif
-
-/*
-** For some Windows sub-platforms, the _beginthreadex() / _endthreadex()
-** functions are not available (e.g. those not using MSVC, Cygwin, etc).
-*/
-#if SQLITE_OS_WIN && !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && \
-    SQLITE_THREADSAFE>0 && !defined(__CYGWIN__)
-# define SQLITE_OS_WIN_THREADS 1
-#else
-# define SQLITE_OS_WIN_THREADS 0
-#endif
-
-#endif /* SQLITE_OS_WIN_H */
-
-/************** End of os_win.h **********************************************/
-/************** Continuing where we left off in mutex_w32.c ******************/
-#endif
-
-/*
-** The code in this file is only used if we are compiling multithreaded
-** on a Win32 system.
-*/
-#ifdef SQLITE_MUTEX_W32
-
-/*
-** Each recursive mutex is an instance of the following structure.
-*/
-struct tdsqlite3_mutex {
-  CRITICAL_SECTION mutex;    /* Mutex controlling the lock */
-  int id;                    /* Mutex type */
-#ifdef SQLITE_DEBUG
-  volatile int nRef;         /* Number of enterances */
-  volatile DWORD owner;      /* Thread holding this mutex */
-  volatile LONG trace;       /* True to trace changes */
-#endif
-};
-
-/*
-** These are the initializer values used when declaring a "static" mutex
-** on Win32.  It should be noted that all mutexes require initialization
-** on the Win32 platform.
-*/
-#define SQLITE_W32_MUTEX_INITIALIZER { 0 }
-
-#ifdef SQLITE_DEBUG
-#define SQLITE3_MUTEX_INITIALIZER(id) { SQLITE_W32_MUTEX_INITIALIZER, id, \
-                                    0L, (DWORD)0, 0 }
-#else
-#define SQLITE3_MUTEX_INITIALIZER(id) { SQLITE_W32_MUTEX_INITIALIZER, id }
-#endif
-
-#ifdef SQLITE_DEBUG
-/*
-** The tdsqlite3_mutex_held() and tdsqlite3_mutex_notheld() routine are
-** intended for use only inside assert() statements.
-*/
-static int winMutexHeld(tdsqlite3_mutex *p){
-  return p->nRef!=0 && p->owner==GetCurrentThreadId();
-}
-
-static int winMutexNotheld2(tdsqlite3_mutex *p, DWORD tid){
-  return p->nRef==0 || p->owner!=tid;
-}
-
-static int winMutexNotheld(tdsqlite3_mutex *p){
-  DWORD tid = GetCurrentThreadId();
-  return winMutexNotheld2(p, tid);
-}
-#endif
-
-/*
-** Try to provide a memory barrier operation, needed for initialization
-** and also for the xShmBarrier method of the VFS in cases when SQLite is
-** compiled without mutexes (SQLITE_THREADSAFE=0).
-*/
-SQLITE_PRIVATE void tdsqlite3MemoryBarrier(void){
-#if defined(SQLITE_MEMORY_BARRIER)
-  SQLITE_MEMORY_BARRIER;
-#elif defined(__GNUC__)
-  __sync_synchronize();
-#elif MSVC_VERSION>=1300
-  _ReadWriteBarrier();
-#elif defined(MemoryBarrier)
-  MemoryBarrier();
-#endif
-}
-
-/*
-** Initialize and deinitialize the mutex subsystem.
-*/
-static tdsqlite3_mutex winMutex_staticMutexes[] = {
-  SQLITE3_MUTEX_INITIALIZER(2),
-  SQLITE3_MUTEX_INITIALIZER(3),
-  SQLITE3_MUTEX_INITIALIZER(4),
-  SQLITE3_MUTEX_INITIALIZER(5),
-  SQLITE3_MUTEX_INITIALIZER(6),
-  SQLITE3_MUTEX_INITIALIZER(7),
-  SQLITE3_MUTEX_INITIALIZER(8),
-  SQLITE3_MUTEX_INITIALIZER(9),
-  SQLITE3_MUTEX_INITIALIZER(10),
-  SQLITE3_MUTEX_INITIALIZER(11),
-  SQLITE3_MUTEX_INITIALIZER(12),
-  SQLITE3_MUTEX_INITIALIZER(13)
-};
-
-static int winMutex_isInit = 0;
-static int winMutex_isNt = -1; /* <0 means "need to query" */
-
-/* As the winMutexInit() and winMutexEnd() functions are called as part
-** of the tdsqlite3_initialize() and tdsqlite3_shutdown() processing, the
-** "interlocked" magic used here is probably not strictly necessary.
-*/
-static LONG SQLITE_WIN32_VOLATILE winMutex_lock = 0;
-
-SQLITE_API int tdsqlite3_win32_is_nt(void); /* os_win.c */
-SQLITE_API void tdsqlite3_win32_sleep(DWORD milliseconds); /* os_win.c */
-
-static int winMutexInit(void){
-  /* The first to increment to 1 does actual initialization */
-  if( InterlockedCompareExchange(&winMutex_lock, 1, 0)==0 ){
-    int i;
-    for(i=0; i<ArraySize(winMutex_staticMutexes); i++){
-#if SQLITE_OS_WINRT
-      InitializeCriticalSectionEx(&winMutex_staticMutexes[i].mutex, 0, 0);
-#else
-      InitializeCriticalSection(&winMutex_staticMutexes[i].mutex);
-#endif
-    }
-    winMutex_isInit = 1;
-  }else{
-    /* Another thread is (in the process of) initializing the static
-    ** mutexes */
-    while( !winMutex_isInit ){
-      tdsqlite3_win32_sleep(1);
-    }
-  }
-  return SQLITE_OK;
-}
-
-static int winMutexEnd(void){
-  /* The first to decrement to 0 does actual shutdown
-  ** (which should be the last to shutdown.) */
-  if( InterlockedCompareExchange(&winMutex_lock, 0, 1)==1 ){
-    if( winMutex_isInit==1 ){
-      int i;
-      for(i=0; i<ArraySize(winMutex_staticMutexes); i++){
-        DeleteCriticalSection(&winMutex_staticMutexes[i].mutex);
-      }
-      winMutex_isInit = 0;
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** The tdsqlite3_mutex_alloc() routine allocates a new
-** mutex and returns a pointer to it.  If it returns NULL
-** that means that a mutex could not be allocated.  SQLite
-** will unwind its stack and return an error.  The argument
-** to tdsqlite3_mutex_alloc() is one of these integer constants:
-**
-** <ul>
-** <li>  SQLITE_MUTEX_FAST
-** <li>  SQLITE_MUTEX_RECURSIVE
-** <li>  SQLITE_MUTEX_STATIC_MASTER
-** <li>  SQLITE_MUTEX_STATIC_MEM
-** <li>  SQLITE_MUTEX_STATIC_OPEN
-** <li>  SQLITE_MUTEX_STATIC_PRNG
-** <li>  SQLITE_MUTEX_STATIC_LRU
-** <li>  SQLITE_MUTEX_STATIC_PMEM
-** <li>  SQLITE_MUTEX_STATIC_APP1
-** <li>  SQLITE_MUTEX_STATIC_APP2
-** <li>  SQLITE_MUTEX_STATIC_APP3
-** <li>  SQLITE_MUTEX_STATIC_VFS1
-** <li>  SQLITE_MUTEX_STATIC_VFS2
-** <li>  SQLITE_MUTEX_STATIC_VFS3
-** </ul>
-**
-** The first two constants cause tdsqlite3_mutex_alloc() to create
-** a new mutex.  The new mutex is recursive when SQLITE_MUTEX_RECURSIVE
-** is used but not necessarily so when SQLITE_MUTEX_FAST is used.
-** The mutex implementation does not need to make a distinction
-** between SQLITE_MUTEX_RECURSIVE and SQLITE_MUTEX_FAST if it does
-** not want to.  But SQLite will only request a recursive mutex in
-** cases where it really needs one.  If a faster non-recursive mutex
-** implementation is available on the host platform, the mutex subsystem
-** might return such a mutex in response to SQLITE_MUTEX_FAST.
-**
-** The other allowed parameters to tdsqlite3_mutex_alloc() each return
-** a pointer to a static preexisting mutex.  Six static mutexes are
-** used by the current version of SQLite.  Future versions of SQLite
-** may add additional static mutexes.  Static mutexes are for internal
-** use by SQLite only.  Applications that use SQLite mutexes should
-** use only the dynamic mutexes returned by SQLITE_MUTEX_FAST or
-** SQLITE_MUTEX_RECURSIVE.
-**
-** Note that if one of the dynamic mutex parameters (SQLITE_MUTEX_FAST
-** or SQLITE_MUTEX_RECURSIVE) is used then tdsqlite3_mutex_alloc()
-** returns a different mutex on every call.  But for the static
-** mutex types, the same mutex is returned on every call that has
-** the same type number.
-*/
-static tdsqlite3_mutex *winMutexAlloc(int iType){
-  tdsqlite3_mutex *p;
-
-  switch( iType ){
-    case SQLITE_MUTEX_FAST:
-    case SQLITE_MUTEX_RECURSIVE: {
-      p = tdsqlite3MallocZero( sizeof(*p) );
-      if( p ){
-        p->id = iType;
-#ifdef SQLITE_DEBUG
-#ifdef SQLITE_WIN32_MUTEX_TRACE_DYNAMIC
-        p->trace = 1;
-#endif
-#endif
-#if SQLITE_OS_WINRT
-        InitializeCriticalSectionEx(&p->mutex, 0, 0);
-#else
-        InitializeCriticalSection(&p->mutex);
-#endif
-      }
-      break;
-    }
-    default: {
-#ifdef SQLITE_ENABLE_API_ARMOR
-      if( iType-2<0 || iType-2>=ArraySize(winMutex_staticMutexes) ){
-        (void)SQLITE_MISUSE_BKPT;
-        return 0;
-      }
-#endif
-      p = &winMutex_staticMutexes[iType-2];
-#ifdef SQLITE_DEBUG
-#ifdef SQLITE_WIN32_MUTEX_TRACE_STATIC
-      InterlockedCompareExchange(&p->trace, 1, 0);
-#endif
-#endif
-      break;
-    }
-  }
-  assert( p==0 || p->id==iType );
-  return p;
-}
-
-
-/*
-** This routine deallocates a previously
-** allocated mutex.  SQLite is careful to deallocate every
-** mutex that it allocates.
-*/
-static void winMutexFree(tdsqlite3_mutex *p){
-  assert( p );
-  assert( p->nRef==0 && p->owner==0 );
-  if( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE ){
-    DeleteCriticalSection(&p->mutex);
-    tdsqlite3_free(p);
-  }else{
-#ifdef SQLITE_ENABLE_API_ARMOR
-    (void)SQLITE_MISUSE_BKPT;
-#endif
-  }
-}
-
-/*
-** The tdsqlite3_mutex_enter() and tdsqlite3_mutex_try() routines attempt
-** to enter a mutex.  If another thread is already within the mutex,
-** tdsqlite3_mutex_enter() will block and tdsqlite3_mutex_try() will return
-** SQLITE_BUSY.  The tdsqlite3_mutex_try() interface returns SQLITE_OK
-** upon successful entry.  Mutexes created using SQLITE_MUTEX_RECURSIVE can
-** be entered multiple times by the same thread.  In such cases the,
-** mutex must be exited an equal number of times before another thread
-** can enter.  If the same thread tries to enter any other kind of mutex
-** more than once, the behavior is undefined.
-*/
-static void winMutexEnter(tdsqlite3_mutex *p){
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  DWORD tid = GetCurrentThreadId();
-#endif
-#ifdef SQLITE_DEBUG
-  assert( p );
-  assert( p->id==SQLITE_MUTEX_RECURSIVE || winMutexNotheld2(p, tid) );
-#else
-  assert( p );
-#endif
-  assert( winMutex_isInit==1 );
-  EnterCriticalSection(&p->mutex);
-#ifdef SQLITE_DEBUG
-  assert( p->nRef>0 || p->owner==0 );
-  p->owner = tid;
-  p->nRef++;
-  if( p->trace ){
-    OSTRACE(("ENTER-MUTEX tid=%lu, mutex(%d)=%p (%d), nRef=%d\n",
-             tid, p->id, p, p->trace, p->nRef));
-  }
-#endif
-}
-
-static int winMutexTry(tdsqlite3_mutex *p){
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  DWORD tid = GetCurrentThreadId();
-#endif
-  int rc = SQLITE_BUSY;
-  assert( p );
-  assert( p->id==SQLITE_MUTEX_RECURSIVE || winMutexNotheld2(p, tid) );
-  /*
-  ** The tdsqlite3_mutex_try() routine is very rarely used, and when it
-  ** is used it is merely an optimization.  So it is OK for it to always
-  ** fail.
-  **
-  ** The TryEnterCriticalSection() interface is only available on WinNT.
-  ** And some windows compilers complain if you try to use it without
-  ** first doing some #defines that prevent SQLite from building on Win98.
-  ** For that reason, we will omit this optimization for now.  See
-  ** ticket #2685.
-  */
-#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0400
-  assert( winMutex_isInit==1 );
-  assert( winMutex_isNt>=-1 && winMutex_isNt<=1 );
-  if( winMutex_isNt<0 ){
-    winMutex_isNt = tdsqlite3_win32_is_nt();
-  }
-  assert( winMutex_isNt==0 || winMutex_isNt==1 );
-  if( winMutex_isNt && TryEnterCriticalSection(&p->mutex) ){
-#ifdef SQLITE_DEBUG
-    p->owner = tid;
-    p->nRef++;
-#endif
-    rc = SQLITE_OK;
-  }
-#else
-  UNUSED_PARAMETER(p);
-#endif
-#ifdef SQLITE_DEBUG
-  if( p->trace ){
-    OSTRACE(("TRY-MUTEX tid=%lu, mutex(%d)=%p (%d), owner=%lu, nRef=%d, rc=%s\n",
-             tid, p->id, p, p->trace, p->owner, p->nRef, tdsqlite3ErrName(rc)));
-  }
-#endif
-  return rc;
-}
-
-/*
-** The tdsqlite3_mutex_leave() routine exits a mutex that was
-** previously entered by the same thread.  The behavior
-** is undefined if the mutex is not currently entered or
-** is not currently allocated.  SQLite will never do either.
-*/
-static void winMutexLeave(tdsqlite3_mutex *p){
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  DWORD tid = GetCurrentThreadId();
-#endif
-  assert( p );
-#ifdef SQLITE_DEBUG
-  assert( p->nRef>0 );
-  assert( p->owner==tid );
-  p->nRef--;
-  if( p->nRef==0 ) p->owner = 0;
-  assert( p->nRef==0 || p->id==SQLITE_MUTEX_RECURSIVE );
-#endif
-  assert( winMutex_isInit==1 );
-  LeaveCriticalSection(&p->mutex);
-#ifdef SQLITE_DEBUG
-  if( p->trace ){
-    OSTRACE(("LEAVE-MUTEX tid=%lu, mutex(%d)=%p (%d), nRef=%d\n",
-             tid, p->id, p, p->trace, p->nRef));
-  }
-#endif
-}
-
-SQLITE_PRIVATE tdsqlite3_mutex_methods const *tdsqlite3DefaultMutex(void){
-  static const tdsqlite3_mutex_methods sMutex = {
-    winMutexInit,
-    winMutexEnd,
-    winMutexAlloc,
-    winMutexFree,
-    winMutexEnter,
-    winMutexTry,
-    winMutexLeave,
-#ifdef SQLITE_DEBUG
-    winMutexHeld,
-    winMutexNotheld
-#else
-    0,
-    0
-#endif
-  };
-  return &sMutex;
-}
-
-#endif /* SQLITE_MUTEX_W32 */
-
-/************** End of mutex_w32.c *******************************************/
-/************** Begin file malloc.c ******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** Memory allocation functions used throughout sqlite.
-*/
-/* #include "sqliteInt.h" */
-/* #include <stdarg.h> */
-
-/*
-** Attempt to release up to n bytes of non-essential memory currently
-** held by SQLite. An example of non-essential memory is memory used to
-** cache database pages that are not currently in use.
-*/
-SQLITE_API int tdsqlite3_release_memory(int n){
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-  return tdsqlite3PcacheReleaseMemory(n);
-#else
-  /* IMPLEMENTATION-OF: R-34391-24921 The tdsqlite3_release_memory() routine
-  ** is a no-op returning zero if SQLite is not compiled with
-  ** SQLITE_ENABLE_MEMORY_MANAGEMENT. */
-  UNUSED_PARAMETER(n);
-  return 0;
-#endif
-}
-
-/*
-** Default value of the hard heap limit.  0 means "no limit".
-*/
-#ifndef SQLITE_MAX_MEMORY
-# define SQLITE_MAX_MEMORY 0
-#endif
-
-/*
-** State information local to the memory allocation subsystem.
-*/
-static SQLITE_WSD struct Mem0Global {
-  tdsqlite3_mutex *mutex;         /* Mutex to serialize access */
-  tdsqlite3_int64 alarmThreshold; /* The soft heap limit */
-  tdsqlite3_int64 hardLimit;      /* The hard upper bound on memory */
-
-  /*
-  ** True if heap is nearly "full" where "full" is defined by the
-  ** tdsqlite3_soft_heap_limit() setting.
-  */
-  int nearlyFull;
-} mem0 = { 0, SQLITE_MAX_MEMORY, SQLITE_MAX_MEMORY, 0 };
-
-#define mem0 GLOBAL(struct Mem0Global, mem0)
-
-/*
-** Return the memory allocator mutex. tdsqlite3_status() needs it.
-*/
-SQLITE_PRIVATE tdsqlite3_mutex *tdsqlite3MallocMutex(void){
-  return mem0.mutex;
-}
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/*
-** Deprecated external interface.  It used to set an alarm callback
-** that was invoked when memory usage grew too large.  Now it is a
-** no-op.
-*/
-SQLITE_API int tdsqlite3_memory_alarm(
-  void(*xCallback)(void *pArg, tdsqlite3_int64 used,int N),
-  void *pArg,
-  tdsqlite3_int64 iThreshold
-){
-  (void)xCallback;
-  (void)pArg;
-  (void)iThreshold;
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** Set the soft heap-size limit for the library.  An argument of
-** zero disables the limit.  A negative argument is a no-op used to
-** obtain the return value.
-**
-** The return value is the value of the heap limit just before this
-** interface was called.
-**
-** If the hard heap limit is enabled, then the soft heap limit cannot
-** be disabled nor raised above the hard heap limit.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_soft_heap_limit64(tdsqlite3_int64 n){
-  tdsqlite3_int64 priorLimit;
-  tdsqlite3_int64 excess;
-  tdsqlite3_int64 nUsed;
-#ifndef SQLITE_OMIT_AUTOINIT
-  int rc = tdsqlite3_initialize();
-  if( rc ) return -1;
-#endif
-  tdsqlite3_mutex_enter(mem0.mutex);
-  priorLimit = mem0.alarmThreshold;
-  if( n<0 ){
-    tdsqlite3_mutex_leave(mem0.mutex);
-    return priorLimit;
-  }
-  if( mem0.hardLimit>0 && (n>mem0.hardLimit || n==0) ){
-    n = mem0.hardLimit;
-  }
-  mem0.alarmThreshold = n;
-  nUsed = tdsqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
-  mem0.nearlyFull = (n>0 && n<=nUsed);
-  tdsqlite3_mutex_leave(mem0.mutex);
-  excess = tdsqlite3_memory_used() - n;
-  if( excess>0 ) tdsqlite3_release_memory((int)(excess & 0x7fffffff));
-  return priorLimit;
-}
-SQLITE_API void tdsqlite3_soft_heap_limit(int n){
-  if( n<0 ) n = 0;
-  tdsqlite3_soft_heap_limit64(n);
-}
-
-/*
-** Set the hard heap-size limit for the library. An argument of zero
-** disables the hard heap limit.  A negative argument is a no-op used
-** to obtain the return value without affecting the hard heap limit.
-**
-** The return value is the value of the hard heap limit just prior to
-** calling this interface.
-**
-** Setting the hard heap limit will also activate the soft heap limit
-** and constrain the soft heap limit to be no more than the hard heap
-** limit.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_hard_heap_limit64(tdsqlite3_int64 n){
-  tdsqlite3_int64 priorLimit;
-#ifndef SQLITE_OMIT_AUTOINIT
-  int rc = tdsqlite3_initialize();
-  if( rc ) return -1;
-#endif
-  tdsqlite3_mutex_enter(mem0.mutex);
-  priorLimit = mem0.hardLimit;
-  if( n>=0 ){
-    mem0.hardLimit = n;
-    if( n<mem0.alarmThreshold || mem0.alarmThreshold==0 ){
-      mem0.alarmThreshold = n;
-    }
-  }
-  tdsqlite3_mutex_leave(mem0.mutex);
-  return priorLimit;
-}
-
-
-/*
-** Initialize the memory allocation subsystem.
-*/
-SQLITE_PRIVATE int tdsqlite3MallocInit(void){
-  int rc;
-  if( tdsqlite3GlobalConfig.m.xMalloc==0 ){
-    tdsqlite3MemSetDefault();
-  }
-  memset(&mem0, 0, sizeof(mem0));
-  mem0.mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM);
-  if( tdsqlite3GlobalConfig.pPage==0 || tdsqlite3GlobalConfig.szPage<512
-      || tdsqlite3GlobalConfig.nPage<=0 ){
-    tdsqlite3GlobalConfig.pPage = 0;
-    tdsqlite3GlobalConfig.szPage = 0;
-  }
-  rc = tdsqlite3GlobalConfig.m.xInit(tdsqlite3GlobalConfig.m.pAppData);
-  if( rc!=SQLITE_OK ) memset(&mem0, 0, sizeof(mem0));
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-  /* install wrapping functions for memory management
-     that will wipe all memory allocated by SQLite
-     when freed */
-  if( rc==SQLITE_OK ) {
-    sqlcipher_init_memmethods();
-  }
-#endif
-/* END SQLCIPHER */
-  return rc;
-}
-
-/*
-** Return true if the heap is currently under memory pressure - in other
-** words if the amount of heap used is close to the limit set by
-** tdsqlite3_soft_heap_limit().
-*/
-SQLITE_PRIVATE int tdsqlite3HeapNearlyFull(void){
-  return mem0.nearlyFull;
-}
-
-/*
-** Deinitialize the memory allocation subsystem.
-*/
-SQLITE_PRIVATE void tdsqlite3MallocEnd(void){
-  if( tdsqlite3GlobalConfig.m.xShutdown ){
-    tdsqlite3GlobalConfig.m.xShutdown(tdsqlite3GlobalConfig.m.pAppData);
-  }
-  memset(&mem0, 0, sizeof(mem0));
-}
-
-/*
-** Return the amount of memory currently checked out.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_memory_used(void){
-  tdsqlite3_int64 res, mx;
-  tdsqlite3_status64(SQLITE_STATUS_MEMORY_USED, &res, &mx, 0);
-  return res;
-}
-
-/*
-** Return the maximum amount of memory that has ever been
-** checked out since either the beginning of this process
-** or since the most recent reset.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_memory_highwater(int resetFlag){
-  tdsqlite3_int64 res, mx;
-  tdsqlite3_status64(SQLITE_STATUS_MEMORY_USED, &res, &mx, resetFlag);
-  return mx;
-}
-
-/*
-** Trigger the alarm 
-*/
-static void tdsqlite3MallocAlarm(int nByte){
-  if( mem0.alarmThreshold<=0 ) return;
-  tdsqlite3_mutex_leave(mem0.mutex);
-  tdsqlite3_release_memory(nByte);
-  tdsqlite3_mutex_enter(mem0.mutex);
-}
-
-/*
-** Do a memory allocation with statistics and alarms.  Assume the
-** lock is already held.
-*/
-static void mallocWithAlarm(int n, void **pp){
-  void *p;
-  int nFull;
-  assert( tdsqlite3_mutex_held(mem0.mutex) );
-  assert( n>0 );
-
-  /* In Firefox (circa 2017-02-08), xRoundup() is remapped to an internal
-  ** implementation of malloc_good_size(), which must be called in debug
-  ** mode and specifically when the DMD "Dark Matter Detector" is enabled
-  ** or else a crash results.  Hence, do not attempt to optimize out the
-  ** following xRoundup() call. */
-  nFull = tdsqlite3GlobalConfig.m.xRoundup(n);
-
-  tdsqlite3StatusHighwater(SQLITE_STATUS_MALLOC_SIZE, n);
-  if( mem0.alarmThreshold>0 ){
-    tdsqlite3_int64 nUsed = tdsqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
-    if( nUsed >= mem0.alarmThreshold - nFull ){
-      mem0.nearlyFull = 1;
-      tdsqlite3MallocAlarm(nFull);
-      if( mem0.hardLimit ){
-        nUsed = tdsqlite3StatusValue(SQLITE_STATUS_MEMORY_USED);
-        if( nUsed >= mem0.hardLimit - nFull ){
-          *pp = 0;
-          return;
-        }
-      }
-    }else{
-      mem0.nearlyFull = 0;
-    }
-  }
-  p = tdsqlite3GlobalConfig.m.xMalloc(nFull);
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-  if( p==0 && mem0.alarmThreshold>0 ){
-    tdsqlite3MallocAlarm(nFull);
-    p = tdsqlite3GlobalConfig.m.xMalloc(nFull);
-  }
-#endif
-  if( p ){
-    nFull = tdsqlite3MallocSize(p);
-    tdsqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nFull);
-    tdsqlite3StatusUp(SQLITE_STATUS_MALLOC_COUNT, 1);
-  }
-  *pp = p;
-}
-
-/*
-** Allocate memory.  This routine is like tdsqlite3_malloc() except that it
-** assumes the memory subsystem has already been initialized.
-*/
-SQLITE_PRIVATE void *tdsqlite3Malloc(u64 n){
-  void *p;
-  if( n==0 || n>=0x7fffff00 ){
-    /* A memory allocation of a number of bytes which is near the maximum
-    ** signed integer value might cause an integer overflow inside of the
-    ** xMalloc().  Hence we limit the maximum size to 0x7fffff00, giving
-    ** 255 bytes of overhead.  SQLite itself will never use anything near
-    ** this amount.  The only way to reach the limit is with tdsqlite3_malloc() */
-    p = 0;
-  }else if( tdsqlite3GlobalConfig.bMemstat ){
-    tdsqlite3_mutex_enter(mem0.mutex);
-    mallocWithAlarm((int)n, &p);
-    tdsqlite3_mutex_leave(mem0.mutex);
-  }else{
-    p = tdsqlite3GlobalConfig.m.xMalloc((int)n);
-  }
-  assert( EIGHT_BYTE_ALIGNMENT(p) );  /* IMP: R-11148-40995 */
-  return p;
-}
-
-/*
-** This version of the memory allocation is for use by the application.
-** First make sure the memory subsystem is initialized, then do the
-** allocation.
-*/
-SQLITE_API void *tdsqlite3_malloc(int n){
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return n<=0 ? 0 : tdsqlite3Malloc(n);
-}
-SQLITE_API void *tdsqlite3_malloc64(tdsqlite3_uint64 n){
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return tdsqlite3Malloc(n);
-}
-
-/*
-** TRUE if p is a lookaside memory allocation from db
-*/
-#ifndef SQLITE_OMIT_LOOKASIDE
-static int isLookaside(tdsqlite3 *db, void *p){
-  return SQLITE_WITHIN(p, db->lookaside.pStart, db->lookaside.pEnd);
-}
-#else
-#define isLookaside(A,B) 0
-#endif
-
-/*
-** Return the size of a memory allocation previously obtained from
-** tdsqlite3Malloc() or tdsqlite3_malloc().
-*/
-SQLITE_PRIVATE int tdsqlite3MallocSize(void *p){
-  assert( tdsqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
-  return tdsqlite3GlobalConfig.m.xSize(p);
-}
-static int lookasideMallocSize(tdsqlite3 *db, void *p){
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE    
-  return p<db->lookaside.pMiddle ? db->lookaside.szTrue : LOOKASIDE_SMALL;
-#else
-  return db->lookaside.szTrue;
-#endif  
-}
-SQLITE_PRIVATE int tdsqlite3DbMallocSize(tdsqlite3 *db, void *p){
-  assert( p!=0 );
-#ifdef SQLITE_DEBUG
-  if( db==0 || !isLookaside(db,p) ){
-    if( db==0 ){
-      assert( tdsqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
-      assert( tdsqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
-    }else{
-      assert( tdsqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-      assert( tdsqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-    }
-  }
-#endif
-  if( db ){
-    if( ((uptr)p)<(uptr)(db->lookaside.pEnd) ){
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-      if( ((uptr)p)>=(uptr)(db->lookaside.pMiddle) ){
-        assert( tdsqlite3_mutex_held(db->mutex) );
-        return LOOKASIDE_SMALL;
-      }
-#endif
-      if( ((uptr)p)>=(uptr)(db->lookaside.pStart) ){
-        assert( tdsqlite3_mutex_held(db->mutex) );
-        return db->lookaside.szTrue;
-      }
-    }
-  }
-  return tdsqlite3GlobalConfig.m.xSize(p);
-}
-SQLITE_API tdsqlite3_uint64 tdsqlite3_msize(void *p){
-  assert( tdsqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
-  assert( tdsqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
-  return p ? tdsqlite3GlobalConfig.m.xSize(p) : 0;
-}
-
-/*
-** Free memory previously obtained from tdsqlite3Malloc().
-*/
-SQLITE_API void tdsqlite3_free(void *p){
-  if( p==0 ) return;  /* IMP: R-49053-54554 */
-  assert( tdsqlite3MemdebugHasType(p, MEMTYPE_HEAP) );
-  assert( tdsqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) );
-  if( tdsqlite3GlobalConfig.bMemstat ){
-    tdsqlite3_mutex_enter(mem0.mutex);
-    tdsqlite3StatusDown(SQLITE_STATUS_MEMORY_USED, tdsqlite3MallocSize(p));
-    tdsqlite3StatusDown(SQLITE_STATUS_MALLOC_COUNT, 1);
-    tdsqlite3GlobalConfig.m.xFree(p);
-    tdsqlite3_mutex_leave(mem0.mutex);
-  }else{
-    tdsqlite3GlobalConfig.m.xFree(p);
-  }
-}
-
-/*
-** Add the size of memory allocation "p" to the count in
-** *db->pnBytesFreed.
-*/
-static SQLITE_NOINLINE void measureAllocationSize(tdsqlite3 *db, void *p){
-  *db->pnBytesFreed += tdsqlite3DbMallocSize(db,p);
-}
-
-/*
-** Free memory that might be associated with a particular database
-** connection.  Calling tdsqlite3DbFree(D,X) for X==0 is a harmless no-op.
-** The tdsqlite3DbFreeNN(D,X) version requires that X be non-NULL.
-*/
-SQLITE_PRIVATE void tdsqlite3DbFreeNN(tdsqlite3 *db, void *p){
-  assert( db==0 || tdsqlite3_mutex_held(db->mutex) );
-  assert( p!=0 );
-  if( db ){
-    if( db->pnBytesFreed ){
-      measureAllocationSize(db, p);
-      return;
-    }
-    if( ((uptr)p)<(uptr)(db->lookaside.pEnd) ){
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-      if( ((uptr)p)>=(uptr)(db->lookaside.pMiddle) ){
-        LookasideSlot *pBuf = (LookasideSlot*)p;
-#ifdef SQLITE_DEBUG
-        memset(p, 0xaa, LOOKASIDE_SMALL);  /* Trash freed content */
-#endif
-        pBuf->pNext = db->lookaside.pSmallFree;
-        db->lookaside.pSmallFree = pBuf;
-        return;
-      }
-#endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */
-      if( ((uptr)p)>=(uptr)(db->lookaside.pStart) ){
-        LookasideSlot *pBuf = (LookasideSlot*)p;
-#ifdef SQLITE_DEBUG
-        memset(p, 0xaa, db->lookaside.szTrue);  /* Trash freed content */
-#endif
-        pBuf->pNext = db->lookaside.pFree;
-        db->lookaside.pFree = pBuf;
-        return;
-      }
-    }
-  }
-  assert( tdsqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-  assert( tdsqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-  assert( db!=0 || tdsqlite3MemdebugNoType(p, MEMTYPE_LOOKASIDE) );
-  tdsqlite3MemdebugSetType(p, MEMTYPE_HEAP);
-  tdsqlite3_free(p);
-}
-SQLITE_PRIVATE void tdsqlite3DbFree(tdsqlite3 *db, void *p){
-  assert( db==0 || tdsqlite3_mutex_held(db->mutex) );
-  if( p ) tdsqlite3DbFreeNN(db, p);
-}
-
-/*
-** Change the size of an existing memory allocation
-*/
-SQLITE_PRIVATE void *tdsqlite3Realloc(void *pOld, u64 nBytes){
-  int nOld, nNew, nDiff;
-  void *pNew;
-  assert( tdsqlite3MemdebugHasType(pOld, MEMTYPE_HEAP) );
-  assert( tdsqlite3MemdebugNoType(pOld, (u8)~MEMTYPE_HEAP) );
-  if( pOld==0 ){
-    return tdsqlite3Malloc(nBytes); /* IMP: R-04300-56712 */
-  }
-  if( nBytes==0 ){
-    tdsqlite3_free(pOld); /* IMP: R-26507-47431 */
-    return 0;
-  }
-  if( nBytes>=0x7fffff00 ){
-    /* The 0x7ffff00 limit term is explained in comments on tdsqlite3Malloc() */
-    return 0;
-  }
-  nOld = tdsqlite3MallocSize(pOld);
-  /* IMPLEMENTATION-OF: R-46199-30249 SQLite guarantees that the second
-  ** argument to xRealloc is always a value returned by a prior call to
-  ** xRoundup. */
-  nNew = tdsqlite3GlobalConfig.m.xRoundup((int)nBytes);
-  if( nOld==nNew ){
-    pNew = pOld;
-  }else if( tdsqlite3GlobalConfig.bMemstat ){
-    tdsqlite3_mutex_enter(mem0.mutex);
-    tdsqlite3StatusHighwater(SQLITE_STATUS_MALLOC_SIZE, (int)nBytes);
-    nDiff = nNew - nOld;
-    if( nDiff>0 && tdsqlite3StatusValue(SQLITE_STATUS_MEMORY_USED) >= 
-          mem0.alarmThreshold-nDiff ){
-      tdsqlite3MallocAlarm(nDiff);
-    }
-    pNew = tdsqlite3GlobalConfig.m.xRealloc(pOld, nNew);
-    if( pNew==0 && mem0.alarmThreshold>0 ){
-      tdsqlite3MallocAlarm((int)nBytes);
-      pNew = tdsqlite3GlobalConfig.m.xRealloc(pOld, nNew);
-    }
-    if( pNew ){
-      nNew = tdsqlite3MallocSize(pNew);
-      tdsqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nNew-nOld);
-    }
-    tdsqlite3_mutex_leave(mem0.mutex);
-  }else{
-    pNew = tdsqlite3GlobalConfig.m.xRealloc(pOld, nNew);
-  }
-  assert( EIGHT_BYTE_ALIGNMENT(pNew) ); /* IMP: R-11148-40995 */
-  return pNew;
-}
-
-/*
-** The public interface to tdsqlite3Realloc.  Make sure that the memory
-** subsystem is initialized prior to invoking sqliteRealloc.
-*/
-SQLITE_API void *tdsqlite3_realloc(void *pOld, int n){
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  if( n<0 ) n = 0;  /* IMP: R-26507-47431 */
-  return tdsqlite3Realloc(pOld, n);
-}
-SQLITE_API void *tdsqlite3_realloc64(void *pOld, tdsqlite3_uint64 n){
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return tdsqlite3Realloc(pOld, n);
-}
-
-
-/*
-** Allocate and zero memory.
-*/ 
-SQLITE_PRIVATE void *tdsqlite3MallocZero(u64 n){
-  void *p = tdsqlite3Malloc(n);
-  if( p ){
-    memset(p, 0, (size_t)n);
-  }
-  return p;
-}
-
-/*
-** Allocate and zero memory.  If the allocation fails, make
-** the mallocFailed flag in the connection pointer.
-*/
-SQLITE_PRIVATE void *tdsqlite3DbMallocZero(tdsqlite3 *db, u64 n){
-  void *p;
-  testcase( db==0 );
-  p = tdsqlite3DbMallocRaw(db, n);
-  if( p ) memset(p, 0, (size_t)n);
-  return p;
-}
-
-
-/* Finish the work of tdsqlite3DbMallocRawNN for the unusual and
-** slower case when the allocation cannot be fulfilled using lookaside.
-*/
-static SQLITE_NOINLINE void *dbMallocRawFinish(tdsqlite3 *db, u64 n){
-  void *p;
-  assert( db!=0 );
-  p = tdsqlite3Malloc(n);
-  if( !p ) tdsqlite3OomFault(db);
-  tdsqlite3MemdebugSetType(p, 
-         (db->lookaside.bDisable==0) ? MEMTYPE_LOOKASIDE : MEMTYPE_HEAP);
-  return p;
-}
-
-/*
-** Allocate memory, either lookaside (if possible) or heap.  
-** If the allocation fails, set the mallocFailed flag in
-** the connection pointer.
-**
-** If db!=0 and db->mallocFailed is true (indicating a prior malloc
-** failure on the same database connection) then always return 0.
-** Hence for a particular database connection, once malloc starts
-** failing, it fails consistently until mallocFailed is reset.
-** This is an important assumption.  There are many places in the
-** code that do things like this:
-**
-**         int *a = (int*)tdsqlite3DbMallocRaw(db, 100);
-**         int *b = (int*)tdsqlite3DbMallocRaw(db, 200);
-**         if( b ) a[10] = 9;
-**
-** In other words, if a subsequent malloc (ex: "b") worked, it is assumed
-** that all prior mallocs (ex: "a") worked too.
-**
-** The tdsqlite3MallocRawNN() variant guarantees that the "db" parameter is
-** not a NULL pointer.
-*/
-SQLITE_PRIVATE void *tdsqlite3DbMallocRaw(tdsqlite3 *db, u64 n){
-  void *p;
-  if( db ) return tdsqlite3DbMallocRawNN(db, n);
-  p = tdsqlite3Malloc(n);
-  tdsqlite3MemdebugSetType(p, MEMTYPE_HEAP);
-  return p;
-}
-SQLITE_PRIVATE void *tdsqlite3DbMallocRawNN(tdsqlite3 *db, u64 n){
-#ifndef SQLITE_OMIT_LOOKASIDE
-  LookasideSlot *pBuf;
-  assert( db!=0 );
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  assert( db->pnBytesFreed==0 );
-  if( n>db->lookaside.sz ){
-    if( !db->lookaside.bDisable ){
-      db->lookaside.anStat[1]++;      
-    }else if( db->mallocFailed ){
-      return 0;
-    }
-    return dbMallocRawFinish(db, n);
-  }
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-  if( n<=LOOKASIDE_SMALL ){
-    if( (pBuf = db->lookaside.pSmallFree)!=0 ){
-      db->lookaside.pSmallFree = pBuf->pNext;
-      db->lookaside.anStat[0]++;
-      return (void*)pBuf;
-    }else if( (pBuf = db->lookaside.pSmallInit)!=0 ){
-      db->lookaside.pSmallInit = pBuf->pNext;
-      db->lookaside.anStat[0]++;
-      return (void*)pBuf;
-    }
-  }
-#endif
-  if( (pBuf = db->lookaside.pFree)!=0 ){
-    db->lookaside.pFree = pBuf->pNext;
-    db->lookaside.anStat[0]++;
-    return (void*)pBuf;
-  }else if( (pBuf = db->lookaside.pInit)!=0 ){
-    db->lookaside.pInit = pBuf->pNext;
-    db->lookaside.anStat[0]++;
-    return (void*)pBuf;
-  }else{
-    db->lookaside.anStat[2]++;
-  }
-#else
-  assert( db!=0 );
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  assert( db->pnBytesFreed==0 );
-  if( db->mallocFailed ){
-    return 0;
-  }
-#endif
-  return dbMallocRawFinish(db, n);
-}
-
-/* Forward declaration */
-static SQLITE_NOINLINE void *dbReallocFinish(tdsqlite3 *db, void *p, u64 n);
-
-/*
-** Resize the block of memory pointed to by p to n bytes. If the
-** resize fails, set the mallocFailed flag in the connection object.
-*/
-SQLITE_PRIVATE void *tdsqlite3DbRealloc(tdsqlite3 *db, void *p, u64 n){
-  assert( db!=0 );
-  if( p==0 ) return tdsqlite3DbMallocRawNN(db, n);
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  if( ((uptr)p)<(uptr)db->lookaside.pEnd ){
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-    if( ((uptr)p)>=(uptr)db->lookaside.pMiddle ){
-      if( n<=LOOKASIDE_SMALL ) return p;
-    }else
-#endif
-    if( ((uptr)p)>=(uptr)db->lookaside.pStart ){
-      if( n<=db->lookaside.szTrue ) return p;
-    }
-  }
-  return dbReallocFinish(db, p, n);
-}
-static SQLITE_NOINLINE void *dbReallocFinish(tdsqlite3 *db, void *p, u64 n){
-  void *pNew = 0;
-  assert( db!=0 );
-  assert( p!=0 );
-  if( db->mallocFailed==0 ){
-    if( isLookaside(db, p) ){
-      pNew = tdsqlite3DbMallocRawNN(db, n);
-      if( pNew ){
-        memcpy(pNew, p, lookasideMallocSize(db, p));
-        tdsqlite3DbFree(db, p);
-      }
-    }else{
-      assert( tdsqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-      assert( tdsqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) );
-      tdsqlite3MemdebugSetType(p, MEMTYPE_HEAP);
-      pNew = tdsqlite3_realloc64(p, n);
-      if( !pNew ){
-        tdsqlite3OomFault(db);
-      }
-      tdsqlite3MemdebugSetType(pNew,
-            (db->lookaside.bDisable==0 ? MEMTYPE_LOOKASIDE : MEMTYPE_HEAP));
-    }
-  }
-  return pNew;
-}
-
-/*
-** Attempt to reallocate p.  If the reallocation fails, then free p
-** and set the mallocFailed flag in the database connection.
-*/
-SQLITE_PRIVATE void *tdsqlite3DbReallocOrFree(tdsqlite3 *db, void *p, u64 n){
-  void *pNew;
-  pNew = tdsqlite3DbRealloc(db, p, n);
-  if( !pNew ){
-    tdsqlite3DbFree(db, p);
-  }
-  return pNew;
-}
-
-/*
-** Make a copy of a string in memory obtained from sqliteMalloc(). These 
-** functions call tdsqlite3MallocRaw() directly instead of sqliteMalloc(). This
-** is because when memory debugging is turned on, these two functions are 
-** called via macros that record the current file and line number in the
-** ThreadData structure.
-*/
-SQLITE_PRIVATE char *tdsqlite3DbStrDup(tdsqlite3 *db, const char *z){
-  char *zNew;
-  size_t n;
-  if( z==0 ){
-    return 0;
-  }
-  n = strlen(z) + 1;
-  zNew = tdsqlite3DbMallocRaw(db, n);
-  if( zNew ){
-    memcpy(zNew, z, n);
-  }
-  return zNew;
-}
-SQLITE_PRIVATE char *tdsqlite3DbStrNDup(tdsqlite3 *db, const char *z, u64 n){
-  char *zNew;
-  assert( db!=0 );
-  if( z==0 ){
-    return 0;
-  }
-  assert( (n&0x7fffffff)==n );
-  zNew = tdsqlite3DbMallocRawNN(db, n+1);
-  if( zNew ){
-    memcpy(zNew, z, (size_t)n);
-    zNew[n] = 0;
-  }
-  return zNew;
-}
-
-/*
-** The text between zStart and zEnd represents a phrase within a larger
-** SQL statement.  Make a copy of this phrase in space obtained form
-** tdsqlite3DbMalloc().  Omit leading and trailing whitespace.
-*/
-SQLITE_PRIVATE char *tdsqlite3DbSpanDup(tdsqlite3 *db, const char *zStart, const char *zEnd){
-  int n;
-  while( tdsqlite3Isspace(zStart[0]) ) zStart++;
-  n = (int)(zEnd - zStart);
-  while( ALWAYS(n>0) && tdsqlite3Isspace(zStart[n-1]) ) n--;
-  return tdsqlite3DbStrNDup(db, zStart, n);
-}
-
-/*
-** Free any prior content in *pz and replace it with a copy of zNew.
-*/
-SQLITE_PRIVATE void tdsqlite3SetString(char **pz, tdsqlite3 *db, const char *zNew){
-  tdsqlite3DbFree(db, *pz);
-  *pz = tdsqlite3DbStrDup(db, zNew);
-}
-
-/*
-** Call this routine to record the fact that an OOM (out-of-memory) error
-** has happened.  This routine will set db->mallocFailed, and also
-** temporarily disable the lookaside memory allocator and interrupt
-** any running VDBEs.
-*/
-SQLITE_PRIVATE void tdsqlite3OomFault(tdsqlite3 *db){
-  if( db->mallocFailed==0 && db->bBenignMalloc==0 ){
-    db->mallocFailed = 1;
-    if( db->nVdbeExec>0 ){
-      db->u1.isInterrupted = 1;
-    }
-    DisableLookaside;
-    if( db->pParse ){
-      db->pParse->rc = SQLITE_NOMEM_BKPT;
-    }
-  }
-}
-
-/*
-** This routine reactivates the memory allocator and clears the
-** db->mallocFailed flag as necessary.
-**
-** The memory allocator is not restarted if there are running
-** VDBEs.
-*/
-SQLITE_PRIVATE void tdsqlite3OomClear(tdsqlite3 *db){
-  if( db->mallocFailed && db->nVdbeExec==0 ){
-    db->mallocFailed = 0;
-    db->u1.isInterrupted = 0;
-    assert( db->lookaside.bDisable>0 );
-    EnableLookaside;
-  }
-}
-
-/*
-** Take actions at the end of an API call to indicate an OOM error
-*/
-static SQLITE_NOINLINE int apiOomError(tdsqlite3 *db){
-  tdsqlite3OomClear(db);
-  tdsqlite3Error(db, SQLITE_NOMEM);
-  return SQLITE_NOMEM_BKPT;
-}
-
-/*
-** This function must be called before exiting any API function (i.e. 
-** returning control to the user) that has called tdsqlite3_malloc or
-** tdsqlite3_realloc.
-**
-** The returned value is normally a copy of the second argument to this
-** function. However, if a malloc() failure has occurred since the previous
-** invocation SQLITE_NOMEM is returned instead. 
-**
-** If an OOM as occurred, then the connection error-code (the value
-** returned by tdsqlite3_errcode()) is set to SQLITE_NOMEM.
-*/
-SQLITE_PRIVATE int tdsqlite3ApiExit(tdsqlite3* db, int rc){
-  /* If the db handle must hold the connection handle mutex here.
-  ** Otherwise the read (and possible write) of db->mallocFailed 
-  ** is unsafe, as is the call to tdsqlite3Error().
-  */
-  assert( db!=0 );
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  if( db->mallocFailed || rc==SQLITE_IOERR_NOMEM ){
-    return apiOomError(db);
-  }
-  return rc & db->errMask;
-}
-
-/************** End of malloc.c **********************************************/
-/************** Begin file printf.c ******************************************/
-/*
-** The "printf" code that follows dates from the 1980's.  It is in
-** the public domain. 
-**
-**************************************************************************
-**
-** This file contains code for a set of "printf"-like routines.  These
-** routines format strings much like the printf() from the standard C
-** library, though the implementation here has enhancements to support
-** SQLite.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** Conversion types fall into various categories as defined by the
-** following enumeration.
-*/
-#define etRADIX       0 /* non-decimal integer types.  %x %o */
-#define etFLOAT       1 /* Floating point.  %f */
-#define etEXP         2 /* Exponentional notation. %e and %E */
-#define etGENERIC     3 /* Floating or exponential, depending on exponent. %g */
-#define etSIZE        4 /* Return number of characters processed so far. %n */
-#define etSTRING      5 /* Strings. %s */
-#define etDYNSTRING   6 /* Dynamically allocated strings. %z */
-#define etPERCENT     7 /* Percent symbol. %% */
-#define etCHARX       8 /* Characters. %c */
-/* The rest are extensions, not normally found in printf() */
-#define etSQLESCAPE   9 /* Strings with '\'' doubled.  %q */
-#define etSQLESCAPE2 10 /* Strings with '\'' doubled and enclosed in '',
-                          NULL pointers replaced by SQL NULL.  %Q */
-#define etTOKEN      11 /* a pointer to a Token structure */
-#define etSRCLIST    12 /* a pointer to a SrcList */
-#define etPOINTER    13 /* The %p conversion */
-#define etSQLESCAPE3 14 /* %w -> Strings with '\"' doubled */
-#define etORDINAL    15 /* %r -> 1st, 2nd, 3rd, 4th, etc.  English only */
-#define etDECIMAL    16 /* %d or %u, but not %x, %o */
-
-#define etINVALID    17 /* Any unrecognized conversion type */
-
-
-/*
-** An "etByte" is an 8-bit unsigned value.
-*/
-typedef unsigned char etByte;
-
-/*
-** Each builtin conversion character (ex: the 'd' in "%d") is described
-** by an instance of the following structure
-*/
-typedef struct et_info {   /* Information about each format field */
-  char fmttype;            /* The format field code letter */
-  etByte base;             /* The base for radix conversion */
-  etByte flags;            /* One or more of FLAG_ constants below */
-  etByte type;             /* Conversion paradigm */
-  etByte charset;          /* Offset into aDigits[] of the digits string */
-  etByte prefix;           /* Offset into aPrefix[] of the prefix string */
-} et_info;
-
-/*
-** Allowed values for et_info.flags
-*/
-#define FLAG_SIGNED    1     /* True if the value to convert is signed */
-#define FLAG_STRING    4     /* Allow infinite precision */
-
-
-/*
-** The following table is searched linearly, so it is good to put the
-** most frequently used conversion types first.
-*/
-static const char aDigits[] = "0123456789ABCDEF0123456789abcdef";
-static const char aPrefix[] = "-x0\000X0";
-static const et_info fmtinfo[] = {
-  {  'd', 10, 1, etDECIMAL,    0,  0 },
-  {  's',  0, 4, etSTRING,     0,  0 },
-  {  'g',  0, 1, etGENERIC,    30, 0 },
-  {  'z',  0, 4, etDYNSTRING,  0,  0 },
-  {  'q',  0, 4, etSQLESCAPE,  0,  0 },
-  {  'Q',  0, 4, etSQLESCAPE2, 0,  0 },
-  {  'w',  0, 4, etSQLESCAPE3, 0,  0 },
-  {  'c',  0, 0, etCHARX,      0,  0 },
-  {  'o',  8, 0, etRADIX,      0,  2 },
-  {  'u', 10, 0, etDECIMAL,    0,  0 },
-  {  'x', 16, 0, etRADIX,      16, 1 },
-  {  'X', 16, 0, etRADIX,      0,  4 },
-#ifndef SQLITE_OMIT_FLOATING_POINT
-  {  'f',  0, 1, etFLOAT,      0,  0 },
-  {  'e',  0, 1, etEXP,        30, 0 },
-  {  'E',  0, 1, etEXP,        14, 0 },
-  {  'G',  0, 1, etGENERIC,    14, 0 },
-#endif
-  {  'i', 10, 1, etDECIMAL,    0,  0 },
-  {  'n',  0, 0, etSIZE,       0,  0 },
-  {  '%',  0, 0, etPERCENT,    0,  0 },
-  {  'p', 16, 0, etPOINTER,    0,  1 },
-
-  /* All the rest are undocumented and are for internal use only */
-  {  'T',  0, 0, etTOKEN,      0,  0 },
-  {  'S',  0, 0, etSRCLIST,    0,  0 },
-  {  'r', 10, 1, etORDINAL,    0,  0 },
-};
-
-/* Floating point constants used for rounding */
-static const double arRound[] = {
-  5.0e-01, 5.0e-02, 5.0e-03, 5.0e-04, 5.0e-05,
-  5.0e-06, 5.0e-07, 5.0e-08, 5.0e-09, 5.0e-10,
-};
-
-/*
-** If SQLITE_OMIT_FLOATING_POINT is defined, then none of the floating point
-** conversions will work.
-*/
-#ifndef SQLITE_OMIT_FLOATING_POINT
-/*
-** "*val" is a double such that 0.1 <= *val < 10.0
-** Return the ascii code for the leading digit of *val, then
-** multiply "*val" by 10.0 to renormalize.
-**
-** Example:
-**     input:     *val = 3.14159
-**     output:    *val = 1.4159    function return = '3'
-**
-** The counter *cnt is incremented each time.  After counter exceeds
-** 16 (the number of significant digits in a 64-bit float) '0' is
-** always returned.
-*/
-static char et_getdigit(LONGDOUBLE_TYPE *val, int *cnt){
-  int digit;
-  LONGDOUBLE_TYPE d;
-  if( (*cnt)<=0 ) return '0';
-  (*cnt)--;
-  digit = (int)*val;
-  d = digit;
-  digit += '0';
-  *val = (*val - d)*10.0;
-  return (char)digit;
-}
-#endif /* SQLITE_OMIT_FLOATING_POINT */
-
-/*
-** Set the StrAccum object to an error mode.
-*/
-static void setStrAccumError(StrAccum *p, u8 eError){
-  assert( eError==SQLITE_NOMEM || eError==SQLITE_TOOBIG );
-  p->accError = eError;
-  if( p->mxAlloc ) tdsqlite3_str_reset(p);
-  if( eError==SQLITE_TOOBIG ) tdsqlite3ErrorToParser(p->db, eError);
-}
-
-/*
-** Extra argument values from a PrintfArguments object
-*/
-static tdsqlite3_int64 getIntArg(PrintfArguments *p){
-  if( p->nArg<=p->nUsed ) return 0;
-  return tdsqlite3_value_int64(p->apArg[p->nUsed++]);
-}
-static double getDoubleArg(PrintfArguments *p){
-  if( p->nArg<=p->nUsed ) return 0.0;
-  return tdsqlite3_value_double(p->apArg[p->nUsed++]);
-}
-static char *getTextArg(PrintfArguments *p){
-  if( p->nArg<=p->nUsed ) return 0;
-  return (char*)tdsqlite3_value_text(p->apArg[p->nUsed++]);
-}
-
-/*
-** Allocate memory for a temporary buffer needed for printf rendering.
-**
-** If the requested size of the temp buffer is larger than the size
-** of the output buffer in pAccum, then cause an SQLITE_TOOBIG error.
-** Do the size check before the memory allocation to prevent rogue
-** SQL from requesting large allocations using the precision or width
-** field of the printf() function.
-*/
-static char *printfTempBuf(tdsqlite3_str *pAccum, tdsqlite3_int64 n){
-  char *z;
-  if( pAccum->accError ) return 0;
-  if( n>pAccum->nAlloc && n>pAccum->mxAlloc ){
-    setStrAccumError(pAccum, SQLITE_TOOBIG);
-    return 0;
-  }
-  z = tdsqlite3DbMallocRaw(pAccum->db, n);
-  if( z==0 ){
-    setStrAccumError(pAccum, SQLITE_NOMEM);
-  }
-  return z;
-}
-
-/*
-** On machines with a small stack size, you can redefine the
-** SQLITE_PRINT_BUF_SIZE to be something smaller, if desired.
-*/
-#ifndef SQLITE_PRINT_BUF_SIZE
-# define SQLITE_PRINT_BUF_SIZE 70
-#endif
-#define etBUFSIZE SQLITE_PRINT_BUF_SIZE  /* Size of the output buffer */
-
-/*
-** Render a string given by "fmt" into the StrAccum object.
-*/
-SQLITE_API void tdsqlite3_str_vappendf(
-  tdsqlite3_str *pAccum,       /* Accumulate results here */
-  const char *fmt,           /* Format string */
-  va_list ap                 /* arguments */
-){
-  int c;                     /* Next character in the format string */
-  char *bufpt;               /* Pointer to the conversion buffer */
-  int precision;             /* Precision of the current field */
-  int length;                /* Length of the field */
-  int idx;                   /* A general purpose loop counter */
-  int width;                 /* Width of the current field */
-  etByte flag_leftjustify;   /* True if "-" flag is present */
-  etByte flag_prefix;        /* '+' or ' ' or 0 for prefix */
-  etByte flag_alternateform; /* True if "#" flag is present */
-  etByte flag_altform2;      /* True if "!" flag is present */
-  etByte flag_zeropad;       /* True if field width constant starts with zero */
-  etByte flag_long;          /* 1 for the "l" flag, 2 for "ll", 0 by default */
-  etByte done;               /* Loop termination flag */
-  etByte cThousand;          /* Thousands separator for %d and %u */
-  etByte xtype = etINVALID;  /* Conversion paradigm */
-  u8 bArgList;               /* True for SQLITE_PRINTF_SQLFUNC */
-  char prefix;               /* Prefix character.  "+" or "-" or " " or '\0'. */
-  sqlite_uint64 longvalue;   /* Value for integer types */
-  LONGDOUBLE_TYPE realvalue; /* Value for real types */
-  const et_info *infop;      /* Pointer to the appropriate info structure */
-  char *zOut;                /* Rendering buffer */
-  int nOut;                  /* Size of the rendering buffer */
-  char *zExtra = 0;          /* Malloced memory used by some conversion */
-#ifndef SQLITE_OMIT_FLOATING_POINT
-  int  exp, e2;              /* exponent of real numbers */
-  int nsd;                   /* Number of significant digits returned */
-  double rounder;            /* Used for rounding floating point values */
-  etByte flag_dp;            /* True if decimal point should be shown */
-  etByte flag_rtz;           /* True if trailing zeros should be removed */
-#endif
-  PrintfArguments *pArgList = 0; /* Arguments for SQLITE_PRINTF_SQLFUNC */
-  char buf[etBUFSIZE];       /* Conversion buffer */
-
-  /* pAccum never starts out with an empty buffer that was obtained from 
-  ** malloc().  This precondition is required by the mprintf("%z...")
-  ** optimization. */
-  assert( pAccum->nChar>0 || (pAccum->printfFlags&SQLITE_PRINTF_MALLOCED)==0 );
-
-  bufpt = 0;
-  if( (pAccum->printfFlags & SQLITE_PRINTF_SQLFUNC)!=0 ){
-    pArgList = va_arg(ap, PrintfArguments*);
-    bArgList = 1;
-  }else{
-    bArgList = 0;
-  }
-  for(; (c=(*fmt))!=0; ++fmt){
-    if( c!='%' ){
-      bufpt = (char *)fmt;
-#if HAVE_STRCHRNUL
-      fmt = strchrnul(fmt, '%');
-#else
-      do{ fmt++; }while( *fmt && *fmt != '%' );
-#endif
-      tdsqlite3_str_append(pAccum, bufpt, (int)(fmt - bufpt));
-      if( *fmt==0 ) break;
-    }
-    if( (c=(*++fmt))==0 ){
-      tdsqlite3_str_append(pAccum, "%", 1);
-      break;
-    }
-    /* Find out what flags are present */
-    flag_leftjustify = flag_prefix = cThousand =
-     flag_alternateform = flag_altform2 = flag_zeropad = 0;
-    done = 0;
-    width = 0;
-    flag_long = 0;
-    precision = -1;
-    do{
-      switch( c ){
-        case '-':   flag_leftjustify = 1;     break;
-        case '+':   flag_prefix = '+';        break;
-        case ' ':   flag_prefix = ' ';        break;
-        case '#':   flag_alternateform = 1;   break;
-        case '!':   flag_altform2 = 1;        break;
-        case '0':   flag_zeropad = 1;         break;
-        case ',':   cThousand = ',';          break;
-        default:    done = 1;                 break;
-        case 'l': {
-          flag_long = 1;
-          c = *++fmt;
-          if( c=='l' ){
-            c = *++fmt;
-            flag_long = 2;
-          }
-          done = 1;
-          break;
-        }
-        case '1': case '2': case '3': case '4': case '5':
-        case '6': case '7': case '8': case '9': {
-          unsigned wx = c - '0';
-          while( (c = *++fmt)>='0' && c<='9' ){
-            wx = wx*10 + c - '0';
-          }
-          testcase( wx>0x7fffffff );
-          width = wx & 0x7fffffff;
-#ifdef SQLITE_PRINTF_PRECISION_LIMIT
-          if( width>SQLITE_PRINTF_PRECISION_LIMIT ){
-            width = SQLITE_PRINTF_PRECISION_LIMIT;
-          }
-#endif
-          if( c!='.' && c!='l' ){
-            done = 1;
-          }else{
-            fmt--;
-          }
-          break;
-        }
-        case '*': {
-          if( bArgList ){
-            width = (int)getIntArg(pArgList);
-          }else{
-            width = va_arg(ap,int);
-          }
-          if( width<0 ){
-            flag_leftjustify = 1;
-            width = width >= -2147483647 ? -width : 0;
-          }
-#ifdef SQLITE_PRINTF_PRECISION_LIMIT
-          if( width>SQLITE_PRINTF_PRECISION_LIMIT ){
-            width = SQLITE_PRINTF_PRECISION_LIMIT;
-          }
-#endif
-          if( (c = fmt[1])!='.' && c!='l' ){
-            c = *++fmt;
-            done = 1;
-          }
-          break;
-        }
-        case '.': {
-          c = *++fmt;
-          if( c=='*' ){
-            if( bArgList ){
-              precision = (int)getIntArg(pArgList);
-            }else{
-              precision = va_arg(ap,int);
-            }
-            if( precision<0 ){
-              precision = precision >= -2147483647 ? -precision : -1;
-            }
-            c = *++fmt;
-          }else{
-            unsigned px = 0;
-            while( c>='0' && c<='9' ){
-              px = px*10 + c - '0';
-              c = *++fmt;
-            }
-            testcase( px>0x7fffffff );
-            precision = px & 0x7fffffff;
-          }
-#ifdef SQLITE_PRINTF_PRECISION_LIMIT
-          if( precision>SQLITE_PRINTF_PRECISION_LIMIT ){
-            precision = SQLITE_PRINTF_PRECISION_LIMIT;
-          }
-#endif
-          if( c=='l' ){
-            --fmt;
-          }else{
-            done = 1;
-          }
-          break;
-        }
-      }
-    }while( !done && (c=(*++fmt))!=0 );
-
-    /* Fetch the info entry for the field */
-    infop = &fmtinfo[0];
-    xtype = etINVALID;
-    for(idx=0; idx<ArraySize(fmtinfo); idx++){
-      if( c==fmtinfo[idx].fmttype ){
-        infop = &fmtinfo[idx];
-        xtype = infop->type;
-        break;
-      }
-    }
-
-    /*
-    ** At this point, variables are initialized as follows:
-    **
-    **   flag_alternateform          TRUE if a '#' is present.
-    **   flag_altform2               TRUE if a '!' is present.
-    **   flag_prefix                 '+' or ' ' or zero
-    **   flag_leftjustify            TRUE if a '-' is present or if the
-    **                               field width was negative.
-    **   flag_zeropad                TRUE if the width began with 0.
-    **   flag_long                   1 for "l", 2 for "ll"
-    **   width                       The specified field width.  This is
-    **                               always non-negative.  Zero is the default.
-    **   precision                   The specified precision.  The default
-    **                               is -1.
-    **   xtype                       The class of the conversion.
-    **   infop                       Pointer to the appropriate info struct.
-    */
-    switch( xtype ){
-      case etPOINTER:
-        flag_long = sizeof(char*)==sizeof(i64) ? 2 :
-                     sizeof(char*)==sizeof(long int) ? 1 : 0;
-        /* Fall through into the next case */
-      case etORDINAL:
-      case etRADIX:      
-        cThousand = 0;
-        /* Fall through into the next case */
-      case etDECIMAL:
-        if( infop->flags & FLAG_SIGNED ){
-          i64 v;
-          if( bArgList ){
-            v = getIntArg(pArgList);
-          }else if( flag_long ){
-            if( flag_long==2 ){
-              v = va_arg(ap,i64) ;
-            }else{
-              v = va_arg(ap,long int);
-            }
-          }else{
-            v = va_arg(ap,int);
-          }
-          if( v<0 ){
-            if( v==SMALLEST_INT64 ){
-              longvalue = ((u64)1)<<63;
-            }else{
-              longvalue = -v;
-            }
-            prefix = '-';
-          }else{
-            longvalue = v;
-            prefix = flag_prefix;
-          }
-        }else{
-          if( bArgList ){
-            longvalue = (u64)getIntArg(pArgList);
-          }else if( flag_long ){
-            if( flag_long==2 ){
-              longvalue = va_arg(ap,u64);
-            }else{
-              longvalue = va_arg(ap,unsigned long int);
-            }
-          }else{
-            longvalue = va_arg(ap,unsigned int);
-          }
-          prefix = 0;
-        }
-        if( longvalue==0 ) flag_alternateform = 0;
-        if( flag_zeropad && precision<width-(prefix!=0) ){
-          precision = width-(prefix!=0);
-        }
-        if( precision<etBUFSIZE-10-etBUFSIZE/3 ){
-          nOut = etBUFSIZE;
-          zOut = buf;
-        }else{
-          u64 n;
-          n = (u64)precision + 10;
-          if( cThousand ) n += precision/3;
-          zOut = zExtra = printfTempBuf(pAccum, n);
-          if( zOut==0 ) return;
-          nOut = (int)n;
-        }
-        bufpt = &zOut[nOut-1];
-        if( xtype==etORDINAL ){
-          static const char zOrd[] = "thstndrd";
-          int x = (int)(longvalue % 10);
-          if( x>=4 || (longvalue/10)%10==1 ){
-            x = 0;
-          }
-          *(--bufpt) = zOrd[x*2+1];
-          *(--bufpt) = zOrd[x*2];
-        }
-        {
-          const char *cset = &aDigits[infop->charset];
-          u8 base = infop->base;
-          do{                                           /* Convert to ascii */
-            *(--bufpt) = cset[longvalue%base];
-            longvalue = longvalue/base;
-          }while( longvalue>0 );
-        }
-        length = (int)(&zOut[nOut-1]-bufpt);
-        while( precision>length ){
-          *(--bufpt) = '0';                             /* Zero pad */
-          length++;
-        }
-        if( cThousand ){
-          int nn = (length - 1)/3;  /* Number of "," to insert */
-          int ix = (length - 1)%3 + 1;
-          bufpt -= nn;
-          for(idx=0; nn>0; idx++){
-            bufpt[idx] = bufpt[idx+nn];
-            ix--;
-            if( ix==0 ){
-              bufpt[++idx] = cThousand;
-              nn--;
-              ix = 3;
-            }
-          }
-        }
-        if( prefix ) *(--bufpt) = prefix;               /* Add sign */
-        if( flag_alternateform && infop->prefix ){      /* Add "0" or "0x" */
-          const char *pre;
-          char x;
-          pre = &aPrefix[infop->prefix];
-          for(; (x=(*pre))!=0; pre++) *(--bufpt) = x;
-        }
-        length = (int)(&zOut[nOut-1]-bufpt);
-        break;
-      case etFLOAT:
-      case etEXP:
-      case etGENERIC:
-        if( bArgList ){
-          realvalue = getDoubleArg(pArgList);
-        }else{
-          realvalue = va_arg(ap,double);
-        }
-#ifdef SQLITE_OMIT_FLOATING_POINT
-        length = 0;
-#else
-        if( precision<0 ) precision = 6;         /* Set default precision */
-        if( realvalue<0.0 ){
-          realvalue = -realvalue;
-          prefix = '-';
-        }else{
-          prefix = flag_prefix;
-        }
-        if( xtype==etGENERIC && precision>0 ) precision--;
-        testcase( precision>0xfff );
-        idx = precision & 0xfff;
-        rounder = arRound[idx%10];
-        while( idx>=10 ){ rounder *= 1.0e-10; idx -= 10; }
-        if( xtype==etFLOAT ){
-          double rx = (double)realvalue;
-          tdsqlite3_uint64 u;
-          int ex;
-          memcpy(&u, &rx, sizeof(u));
-          ex = -1023 + (int)((u>>52)&0x7ff);
-          if( precision+(ex/3) < 15 ) rounder += realvalue*3e-16;
-          realvalue += rounder;
-        }
-        /* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
-        exp = 0;
-        if( tdsqlite3IsNaN((double)realvalue) ){
-          bufpt = "NaN";
-          length = 3;
-          break;
-        }
-        if( realvalue>0.0 ){
-          LONGDOUBLE_TYPE scale = 1.0;
-          while( realvalue>=1e100*scale && exp<=350 ){ scale *= 1e100;exp+=100;}
-          while( realvalue>=1e10*scale && exp<=350 ){ scale *= 1e10; exp+=10; }
-          while( realvalue>=10.0*scale && exp<=350 ){ scale *= 10.0; exp++; }
-          realvalue /= scale;
-          while( realvalue<1e-8 ){ realvalue *= 1e8; exp-=8; }
-          while( realvalue<1.0 ){ realvalue *= 10.0; exp--; }
-          if( exp>350 ){
-            bufpt = buf;
-            buf[0] = prefix;
-            memcpy(buf+(prefix!=0),"Inf",4);
-            length = 3+(prefix!=0);
-            break;
-          }
-        }
-        bufpt = buf;
-        /*
-        ** If the field type is etGENERIC, then convert to either etEXP
-        ** or etFLOAT, as appropriate.
-        */
-        if( xtype!=etFLOAT ){
-          realvalue += rounder;
-          if( realvalue>=10.0 ){ realvalue *= 0.1; exp++; }
-        }
-        if( xtype==etGENERIC ){
-          flag_rtz = !flag_alternateform;
-          if( exp<-4 || exp>precision ){
-            xtype = etEXP;
-          }else{
-            precision = precision - exp;
-            xtype = etFLOAT;
-          }
-        }else{
-          flag_rtz = flag_altform2;
-        }
-        if( xtype==etEXP ){
-          e2 = 0;
-        }else{
-          e2 = exp;
-        }
-        {
-          i64 szBufNeeded;           /* Size of a temporary buffer needed */
-          szBufNeeded = MAX(e2,0)+(i64)precision+(i64)width+15;
-          if( szBufNeeded > etBUFSIZE ){
-            bufpt = zExtra = printfTempBuf(pAccum, szBufNeeded);
-            if( bufpt==0 ) return;
-          }
-        }
-        zOut = bufpt;
-        nsd = 16 + flag_altform2*10;
-        flag_dp = (precision>0 ?1:0) | flag_alternateform | flag_altform2;
-        /* The sign in front of the number */
-        if( prefix ){
-          *(bufpt++) = prefix;
-        }
-        /* Digits prior to the decimal point */
-        if( e2<0 ){
-          *(bufpt++) = '0';
-        }else{
-          for(; e2>=0; e2--){
-            *(bufpt++) = et_getdigit(&realvalue,&nsd);
-          }
-        }
-        /* The decimal point */
-        if( flag_dp ){
-          *(bufpt++) = '.';
-        }
-        /* "0" digits after the decimal point but before the first
-        ** significant digit of the number */
-        for(e2++; e2<0; precision--, e2++){
-          assert( precision>0 );
-          *(bufpt++) = '0';
-        }
-        /* Significant digits after the decimal point */
-        while( (precision--)>0 ){
-          *(bufpt++) = et_getdigit(&realvalue,&nsd);
-        }
-        /* Remove trailing zeros and the "." if no digits follow the "." */
-        if( flag_rtz && flag_dp ){
-          while( bufpt[-1]=='0' ) *(--bufpt) = 0;
-          assert( bufpt>zOut );
-          if( bufpt[-1]=='.' ){
-            if( flag_altform2 ){
-              *(bufpt++) = '0';
-            }else{
-              *(--bufpt) = 0;
-            }
-          }
-        }
-        /* Add the "eNNN" suffix */
-        if( xtype==etEXP ){
-          *(bufpt++) = aDigits[infop->charset];
-          if( exp<0 ){
-            *(bufpt++) = '-'; exp = -exp;
-          }else{
-            *(bufpt++) = '+';
-          }
-          if( exp>=100 ){
-            *(bufpt++) = (char)((exp/100)+'0');        /* 100's digit */
-            exp %= 100;
-          }
-          *(bufpt++) = (char)(exp/10+'0');             /* 10's digit */
-          *(bufpt++) = (char)(exp%10+'0');             /* 1's digit */
-        }
-        *bufpt = 0;
-
-        /* The converted number is in buf[] and zero terminated. Output it.
-        ** Note that the number is in the usual order, not reversed as with
-        ** integer conversions. */
-        length = (int)(bufpt-zOut);
-        bufpt = zOut;
-
-        /* Special case:  Add leading zeros if the flag_zeropad flag is
-        ** set and we are not left justified */
-        if( flag_zeropad && !flag_leftjustify && length < width){
-          int i;
-          int nPad = width - length;
-          for(i=width; i>=nPad; i--){
-            bufpt[i] = bufpt[i-nPad];
-          }
-          i = prefix!=0;
-          while( nPad-- ) bufpt[i++] = '0';
-          length = width;
-        }
-#endif /* !defined(SQLITE_OMIT_FLOATING_POINT) */
-        break;
-      case etSIZE:
-        if( !bArgList ){
-          *(va_arg(ap,int*)) = pAccum->nChar;
-        }
-        length = width = 0;
-        break;
-      case etPERCENT:
-        buf[0] = '%';
-        bufpt = buf;
-        length = 1;
-        break;
-      case etCHARX:
-        if( bArgList ){
-          bufpt = getTextArg(pArgList);
-          length = 1;
-          if( bufpt ){
-            buf[0] = c = *(bufpt++);
-            if( (c&0xc0)==0xc0 ){
-              while( length<4 && (bufpt[0]&0xc0)==0x80 ){
-                buf[length++] = *(bufpt++);
-              }
-            }
-          }else{
-            buf[0] = 0;
-          }
-        }else{
-          unsigned int ch = va_arg(ap,unsigned int);
-          if( ch<0x00080 ){
-            buf[0] = ch & 0xff;
-            length = 1;
-          }else if( ch<0x00800 ){
-            buf[0] = 0xc0 + (u8)((ch>>6)&0x1f);
-            buf[1] = 0x80 + (u8)(ch & 0x3f);
-            length = 2;
-          }else if( ch<0x10000 ){
-            buf[0] = 0xe0 + (u8)((ch>>12)&0x0f);
-            buf[1] = 0x80 + (u8)((ch>>6) & 0x3f);
-            buf[2] = 0x80 + (u8)(ch & 0x3f);
-            length = 3;
-          }else{
-            buf[0] = 0xf0 + (u8)((ch>>18) & 0x07);
-            buf[1] = 0x80 + (u8)((ch>>12) & 0x3f);
-            buf[2] = 0x80 + (u8)((ch>>6) & 0x3f);
-            buf[3] = 0x80 + (u8)(ch & 0x3f);
-            length = 4;
-          }
-        }
-        if( precision>1 ){
-          width -= precision-1;
-          if( width>1 && !flag_leftjustify ){
-            tdsqlite3_str_appendchar(pAccum, width-1, ' ');
-            width = 0;
-          }
-          while( precision-- > 1 ){
-            tdsqlite3_str_append(pAccum, buf, length);
-          }
-        }
-        bufpt = buf;
-        flag_altform2 = 1;
-        goto adjust_width_for_utf8;
-      case etSTRING:
-      case etDYNSTRING:
-        if( bArgList ){
-          bufpt = getTextArg(pArgList);
-          xtype = etSTRING;
-        }else{
-          bufpt = va_arg(ap,char*);
-        }
-        if( bufpt==0 ){
-          bufpt = "";
-        }else if( xtype==etDYNSTRING ){
-          if( pAccum->nChar==0
-           && pAccum->mxAlloc
-           && width==0
-           && precision<0
-           && pAccum->accError==0
-          ){
-            /* Special optimization for tdsqlite3_mprintf("%z..."):
-            ** Extend an existing memory allocation rather than creating
-            ** a new one. */
-            assert( (pAccum->printfFlags&SQLITE_PRINTF_MALLOCED)==0 );
-            pAccum->zText = bufpt;
-            pAccum->nAlloc = tdsqlite3DbMallocSize(pAccum->db, bufpt);
-            pAccum->nChar = 0x7fffffff & (int)strlen(bufpt);
-            pAccum->printfFlags |= SQLITE_PRINTF_MALLOCED;
-            length = 0;
-            break;
-          }
-          zExtra = bufpt;
-        }
-        if( precision>=0 ){
-          if( flag_altform2 ){
-            /* Set length to the number of bytes needed in order to display
-            ** precision characters */
-            unsigned char *z = (unsigned char*)bufpt;
-            while( precision-- > 0 && z[0] ){
-              SQLITE_SKIP_UTF8(z);
-            }
-            length = (int)(z - (unsigned char*)bufpt);
-          }else{
-            for(length=0; length<precision && bufpt[length]; length++){}
-          }
-        }else{
-          length = 0x7fffffff & (int)strlen(bufpt);
-        }
-      adjust_width_for_utf8:
-        if( flag_altform2 && width>0 ){
-          /* Adjust width to account for extra bytes in UTF-8 characters */
-          int ii = length - 1;
-          while( ii>=0 ) if( (bufpt[ii--] & 0xc0)==0x80 ) width++;
-        }
-        break;
-      case etSQLESCAPE:           /* %q: Escape ' characters */
-      case etSQLESCAPE2:          /* %Q: Escape ' and enclose in '...' */
-      case etSQLESCAPE3: {        /* %w: Escape " characters */
-        int i, j, k, n, isnull;
-        int needQuote;
-        char ch;
-        char q = ((xtype==etSQLESCAPE3)?'"':'\'');   /* Quote character */
-        char *escarg;
-
-        if( bArgList ){
-          escarg = getTextArg(pArgList);
-        }else{
-          escarg = va_arg(ap,char*);
-        }
-        isnull = escarg==0;
-        if( isnull ) escarg = (xtype==etSQLESCAPE2 ? "NULL" : "(NULL)");
-        /* For %q, %Q, and %w, the precision is the number of byte (or
-        ** characters if the ! flags is present) to use from the input.
-        ** Because of the extra quoting characters inserted, the number
-        ** of output characters may be larger than the precision.
-        */
-        k = precision;
-        for(i=n=0; k!=0 && (ch=escarg[i])!=0; i++, k--){
-          if( ch==q )  n++;
-          if( flag_altform2 && (ch&0xc0)==0xc0 ){
-            while( (escarg[i+1]&0xc0)==0x80 ){ i++; }
-          }
-        }
-        needQuote = !isnull && xtype==etSQLESCAPE2;
-        n += i + 3;
-        if( n>etBUFSIZE ){
-          bufpt = zExtra = printfTempBuf(pAccum, n);
-          if( bufpt==0 ) return;
-        }else{
-          bufpt = buf;
-        }
-        j = 0;
-        if( needQuote ) bufpt[j++] = q;
-        k = i;
-        for(i=0; i<k; i++){
-          bufpt[j++] = ch = escarg[i];
-          if( ch==q ) bufpt[j++] = ch;
-        }
-        if( needQuote ) bufpt[j++] = q;
-        bufpt[j] = 0;
-        length = j;
-        goto adjust_width_for_utf8;
-      }
-      case etTOKEN: {
-        Token *pToken;
-        if( (pAccum->printfFlags & SQLITE_PRINTF_INTERNAL)==0 ) return;
-        pToken = va_arg(ap, Token*);
-        assert( bArgList==0 );
-        if( pToken && pToken->n ){
-          tdsqlite3_str_append(pAccum, (const char*)pToken->z, pToken->n);
-        }
-        length = width = 0;
-        break;
-      }
-      case etSRCLIST: {
-        SrcList *pSrc;
-        int k;
-        struct SrcList_item *pItem;
-        if( (pAccum->printfFlags & SQLITE_PRINTF_INTERNAL)==0 ) return;
-        pSrc = va_arg(ap, SrcList*);
-        k = va_arg(ap, int);
-        pItem = &pSrc->a[k];
-        assert( bArgList==0 );
-        assert( k>=0 && k<pSrc->nSrc );
-        if( pItem->zDatabase ){
-          tdsqlite3_str_appendall(pAccum, pItem->zDatabase);
-          tdsqlite3_str_append(pAccum, ".", 1);
-        }
-        tdsqlite3_str_appendall(pAccum, pItem->zName);
-        length = width = 0;
-        break;
-      }
-      default: {
-        assert( xtype==etINVALID );
-        return;
-      }
-    }/* End switch over the format type */
-    /*
-    ** The text of the conversion is pointed to by "bufpt" and is
-    ** "length" characters long.  The field width is "width".  Do
-    ** the output.  Both length and width are in bytes, not characters,
-    ** at this point.  If the "!" flag was present on string conversions
-    ** indicating that width and precision should be expressed in characters,
-    ** then the values have been translated prior to reaching this point.
-    */
-    width -= length;
-    if( width>0 ){
-      if( !flag_leftjustify ) tdsqlite3_str_appendchar(pAccum, width, ' ');
-      tdsqlite3_str_append(pAccum, bufpt, length);
-      if( flag_leftjustify ) tdsqlite3_str_appendchar(pAccum, width, ' ');
-    }else{
-      tdsqlite3_str_append(pAccum, bufpt, length);
-    }
-
-    if( zExtra ){
-      tdsqlite3DbFree(pAccum->db, zExtra);
-      zExtra = 0;
-    }
-  }/* End for loop over the format string */
-} /* End of function */
-
-/*
-** Enlarge the memory allocation on a StrAccum object so that it is
-** able to accept at least N more bytes of text.
-**
-** Return the number of bytes of text that StrAccum is able to accept
-** after the attempted enlargement.  The value returned might be zero.
-*/
-static int tdsqlite3StrAccumEnlarge(StrAccum *p, int N){
-  char *zNew;
-  assert( p->nChar+(i64)N >= p->nAlloc ); /* Only called if really needed */
-  if( p->accError ){
-    testcase(p->accError==SQLITE_TOOBIG);
-    testcase(p->accError==SQLITE_NOMEM);
-    return 0;
-  }
-  if( p->mxAlloc==0 ){
-    setStrAccumError(p, SQLITE_TOOBIG);
-    return p->nAlloc - p->nChar - 1;
-  }else{
-    char *zOld = isMalloced(p) ? p->zText : 0;
-    i64 szNew = p->nChar;
-    szNew += N + 1;
-    if( szNew+p->nChar<=p->mxAlloc ){
-      /* Force exponential buffer size growth as long as it does not overflow,
-      ** to avoid having to call this routine too often */
-      szNew += p->nChar;
-    }
-    if( szNew > p->mxAlloc ){
-      tdsqlite3_str_reset(p);
-      setStrAccumError(p, SQLITE_TOOBIG);
-      return 0;
-    }else{
-      p->nAlloc = (int)szNew;
-    }
-    if( p->db ){
-      zNew = tdsqlite3DbRealloc(p->db, zOld, p->nAlloc);
-    }else{
-      zNew = tdsqlite3_realloc64(zOld, p->nAlloc);
-    }
-    if( zNew ){
-      assert( p->zText!=0 || p->nChar==0 );
-      if( !isMalloced(p) && p->nChar>0 ) memcpy(zNew, p->zText, p->nChar);
-      p->zText = zNew;
-      p->nAlloc = tdsqlite3DbMallocSize(p->db, zNew);
-      p->printfFlags |= SQLITE_PRINTF_MALLOCED;
-    }else{
-      tdsqlite3_str_reset(p);
-      setStrAccumError(p, SQLITE_NOMEM);
-      return 0;
-    }
-  }
-  return N;
-}
-
-/*
-** Append N copies of character c to the given string buffer.
-*/
-SQLITE_API void tdsqlite3_str_appendchar(tdsqlite3_str *p, int N, char c){
-  testcase( p->nChar + (i64)N > 0x7fffffff );
-  if( p->nChar+(i64)N >= p->nAlloc && (N = tdsqlite3StrAccumEnlarge(p, N))<=0 ){
-    return;
-  }
-  while( (N--)>0 ) p->zText[p->nChar++] = c;
-}
-
-/*
-** The StrAccum "p" is not large enough to accept N new bytes of z[].
-** So enlarge if first, then do the append.
-**
-** This is a helper routine to tdsqlite3_str_append() that does special-case
-** work (enlarging the buffer) using tail recursion, so that the
-** tdsqlite3_str_append() routine can use fast calling semantics.
-*/
-static void SQLITE_NOINLINE enlargeAndAppend(StrAccum *p, const char *z, int N){
-  N = tdsqlite3StrAccumEnlarge(p, N);
-  if( N>0 ){
-    memcpy(&p->zText[p->nChar], z, N);
-    p->nChar += N;
-  }
-}
-
-/*
-** Append N bytes of text from z to the StrAccum object.  Increase the
-** size of the memory allocation for StrAccum if necessary.
-*/
-SQLITE_API void tdsqlite3_str_append(tdsqlite3_str *p, const char *z, int N){
-  assert( z!=0 || N==0 );
-  assert( p->zText!=0 || p->nChar==0 || p->accError );
-  assert( N>=0 );
-  assert( p->accError==0 || p->nAlloc==0 || p->mxAlloc==0 );
-  if( p->nChar+N >= p->nAlloc ){
-    enlargeAndAppend(p,z,N);
-  }else if( N ){
-    assert( p->zText );
-    p->nChar += N;
-    memcpy(&p->zText[p->nChar-N], z, N);
-  }
-}
-
-/*
-** Append the complete text of zero-terminated string z[] to the p string.
-*/
-SQLITE_API void tdsqlite3_str_appendall(tdsqlite3_str *p, const char *z){
-  tdsqlite3_str_append(p, z, tdsqlite3Strlen30(z));
-}
-
-
-/*
-** Finish off a string by making sure it is zero-terminated.
-** Return a pointer to the resulting string.  Return a NULL
-** pointer if any kind of error was encountered.
-*/
-static SQLITE_NOINLINE char *strAccumFinishRealloc(StrAccum *p){
-  char *zText;
-  assert( p->mxAlloc>0 && !isMalloced(p) );
-  zText = tdsqlite3DbMallocRaw(p->db, p->nChar+1 );
-  if( zText ){
-    memcpy(zText, p->zText, p->nChar+1);
-    p->printfFlags |= SQLITE_PRINTF_MALLOCED;
-  }else{
-    setStrAccumError(p, SQLITE_NOMEM);
-  }
-  p->zText = zText;
-  return zText;
-}
-SQLITE_PRIVATE char *tdsqlite3StrAccumFinish(StrAccum *p){
-  if( p->zText ){
-    p->zText[p->nChar] = 0;
-    if( p->mxAlloc>0 && !isMalloced(p) ){
-      return strAccumFinishRealloc(p);
-    }
-  }
-  return p->zText;
-}
-
-/*
-** This singleton is an tdsqlite3_str object that is returned if
-** tdsqlite3_malloc() fails to provide space for a real one.  This
-** tdsqlite3_str object accepts no new text and always returns
-** an SQLITE_NOMEM error.
-*/
-static tdsqlite3_str tdsqlite3OomStr = {
-   0, 0, 0, 0, 0, SQLITE_NOMEM, 0
-};
-
-/* Finalize a string created using tdsqlite3_str_new().
-*/
-SQLITE_API char *tdsqlite3_str_finish(tdsqlite3_str *p){
-  char *z;
-  if( p!=0 && p!=&tdsqlite3OomStr ){
-    z = tdsqlite3StrAccumFinish(p);
-    tdsqlite3_free(p);
-  }else{
-    z = 0;
-  }
-  return z;
-}
-
-/* Return any error code associated with p */
-SQLITE_API int tdsqlite3_str_errcode(tdsqlite3_str *p){
-  return p ? p->accError : SQLITE_NOMEM;
-}
-
-/* Return the current length of p in bytes */
-SQLITE_API int tdsqlite3_str_length(tdsqlite3_str *p){
-  return p ? p->nChar : 0;
-}
-
-/* Return the current value for p */
-SQLITE_API char *tdsqlite3_str_value(tdsqlite3_str *p){
-  if( p==0 || p->nChar==0 ) return 0;
-  p->zText[p->nChar] = 0;
-  return p->zText;
-}
-
-/*
-** Reset an StrAccum string.  Reclaim all malloced memory.
-*/
-SQLITE_API void tdsqlite3_str_reset(StrAccum *p){
-  if( isMalloced(p) ){
-    tdsqlite3DbFree(p->db, p->zText);
-    p->printfFlags &= ~SQLITE_PRINTF_MALLOCED;
-  }
-  p->nAlloc = 0;
-  p->nChar = 0;
-  p->zText = 0;
-}
-
-/*
-** Initialize a string accumulator.
-**
-** p:     The accumulator to be initialized.
-** db:    Pointer to a database connection.  May be NULL.  Lookaside
-**        memory is used if not NULL. db->mallocFailed is set appropriately
-**        when not NULL.
-** zBase: An initial buffer.  May be NULL in which case the initial buffer
-**        is malloced.
-** n:     Size of zBase in bytes.  If total space requirements never exceed
-**        n then no memory allocations ever occur.
-** mx:    Maximum number of bytes to accumulate.  If mx==0 then no memory
-**        allocations will ever occur.
-*/
-SQLITE_PRIVATE void tdsqlite3StrAccumInit(StrAccum *p, tdsqlite3 *db, char *zBase, int n, int mx){
-  p->zText = zBase;
-  p->db = db;
-  p->nAlloc = n;
-  p->mxAlloc = mx;
-  p->nChar = 0;
-  p->accError = 0;
-  p->printfFlags = 0;
-}
-
-/* Allocate and initialize a new dynamic string object */
-SQLITE_API tdsqlite3_str *tdsqlite3_str_new(tdsqlite3 *db){
-  tdsqlite3_str *p = tdsqlite3_malloc64(sizeof(*p));
-  if( p ){
-    tdsqlite3StrAccumInit(p, 0, 0, 0,
-            db ? db->aLimit[SQLITE_LIMIT_LENGTH] : SQLITE_MAX_LENGTH);
-  }else{
-    p = &tdsqlite3OomStr;
-  }
-  return p;
-}
-
-/*
-** Print into memory obtained from sqliteMalloc().  Use the internal
-** %-conversion extensions.
-*/
-SQLITE_PRIVATE char *tdsqlite3VMPrintf(tdsqlite3 *db, const char *zFormat, va_list ap){
-  char *z;
-  char zBase[SQLITE_PRINT_BUF_SIZE];
-  StrAccum acc;
-  assert( db!=0 );
-  tdsqlite3StrAccumInit(&acc, db, zBase, sizeof(zBase),
-                      db->aLimit[SQLITE_LIMIT_LENGTH]);
-  acc.printfFlags = SQLITE_PRINTF_INTERNAL;
-  tdsqlite3_str_vappendf(&acc, zFormat, ap);
-  z = tdsqlite3StrAccumFinish(&acc);
-  if( acc.accError==SQLITE_NOMEM ){
-    tdsqlite3OomFault(db);
-  }
-  return z;
-}
-
-/*
-** Print into memory obtained from sqliteMalloc().  Use the internal
-** %-conversion extensions.
-*/
-SQLITE_PRIVATE char *tdsqlite3MPrintf(tdsqlite3 *db, const char *zFormat, ...){
-  va_list ap;
-  char *z;
-  va_start(ap, zFormat);
-  z = tdsqlite3VMPrintf(db, zFormat, ap);
-  va_end(ap);
-  return z;
-}
-
-/*
-** Print into memory obtained from tdsqlite3_malloc().  Omit the internal
-** %-conversion extensions.
-*/
-SQLITE_API char *tdsqlite3_vmprintf(const char *zFormat, va_list ap){
-  char *z;
-  char zBase[SQLITE_PRINT_BUF_SIZE];
-  StrAccum acc;
-
-#ifdef SQLITE_ENABLE_API_ARMOR  
-  if( zFormat==0 ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  tdsqlite3StrAccumInit(&acc, 0, zBase, sizeof(zBase), SQLITE_MAX_LENGTH);
-  tdsqlite3_str_vappendf(&acc, zFormat, ap);
-  z = tdsqlite3StrAccumFinish(&acc);
-  return z;
-}
-
-/*
-** Print into memory obtained from tdsqlite3_malloc()().  Omit the internal
-** %-conversion extensions.
-*/
-SQLITE_API char *tdsqlite3_mprintf(const char *zFormat, ...){
-  va_list ap;
-  char *z;
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  va_start(ap, zFormat);
-  z = tdsqlite3_vmprintf(zFormat, ap);
-  va_end(ap);
-  return z;
-}
-
-/*
-** tdsqlite3_snprintf() works like snprintf() except that it ignores the
-** current locale settings.  This is important for SQLite because we
-** are not able to use a "," as the decimal point in place of "." as
-** specified by some locales.
-**
-** Oops:  The first two arguments of tdsqlite3_snprintf() are backwards
-** from the snprintf() standard.  Unfortunately, it is too late to change
-** this without breaking compatibility, so we just have to live with the
-** mistake.
-**
-** tdsqlite3_vsnprintf() is the varargs version.
-*/
-SQLITE_API char *tdsqlite3_vsnprintf(int n, char *zBuf, const char *zFormat, va_list ap){
-  StrAccum acc;
-  if( n<=0 ) return zBuf;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( zBuf==0 || zFormat==0 ) {
-    (void)SQLITE_MISUSE_BKPT;
-    if( zBuf ) zBuf[0] = 0;
-    return zBuf;
-  }
-#endif
-  tdsqlite3StrAccumInit(&acc, 0, zBuf, n, 0);
-  tdsqlite3_str_vappendf(&acc, zFormat, ap);
-  zBuf[acc.nChar] = 0;
-  return zBuf;
-}
-SQLITE_API char *tdsqlite3_snprintf(int n, char *zBuf, const char *zFormat, ...){
-  char *z;
-  va_list ap;
-  va_start(ap,zFormat);
-  z = tdsqlite3_vsnprintf(n, zBuf, zFormat, ap);
-  va_end(ap);
-  return z;
-}
-
-/*
-** This is the routine that actually formats the tdsqlite3_log() message.
-** We house it in a separate routine from tdsqlite3_log() to avoid using
-** stack space on small-stack systems when logging is disabled.
-**
-** tdsqlite3_log() must render into a static buffer.  It cannot dynamically
-** allocate memory because it might be called while the memory allocator
-** mutex is held.
-**
-** tdsqlite3_str_vappendf() might ask for *temporary* memory allocations for
-** certain format characters (%q) or for very large precisions or widths.
-** Care must be taken that any tdsqlite3_log() calls that occur while the
-** memory mutex is held do not use these mechanisms.
-*/
-static void renderLogMsg(int iErrCode, const char *zFormat, va_list ap){
-  StrAccum acc;                          /* String accumulator */
-  char zMsg[SQLITE_PRINT_BUF_SIZE*3];    /* Complete log message */
-
-  tdsqlite3StrAccumInit(&acc, 0, zMsg, sizeof(zMsg), 0);
-  tdsqlite3_str_vappendf(&acc, zFormat, ap);
-  tdsqlite3GlobalConfig.xLog(tdsqlite3GlobalConfig.pLogArg, iErrCode,
-                           tdsqlite3StrAccumFinish(&acc));
-}
-
-/*
-** Format and write a message to the log if logging is enabled.
-*/
-SQLITE_API void tdsqlite3_log(int iErrCode, const char *zFormat, ...){
-  va_list ap;                             /* Vararg list */
-  if( tdsqlite3GlobalConfig.xLog ){
-    va_start(ap, zFormat);
-    renderLogMsg(iErrCode, zFormat, ap);
-    va_end(ap);
-  }
-}
-
-#if defined(SQLITE_DEBUG) || defined(SQLITE_HAVE_OS_TRACE)
-/*
-** A version of printf() that understands %lld.  Used for debugging.
-** The printf() built into some versions of windows does not understand %lld
-** and segfaults if you give it a long long int.
-*/
-SQLITE_PRIVATE void tdsqlite3DebugPrintf(const char *zFormat, ...){
-  va_list ap;
-  StrAccum acc;
-  char zBuf[500];
-  tdsqlite3StrAccumInit(&acc, 0, zBuf, sizeof(zBuf), 0);
-  va_start(ap,zFormat);
-  tdsqlite3_str_vappendf(&acc, zFormat, ap);
-  va_end(ap);
-  tdsqlite3StrAccumFinish(&acc);
-#ifdef SQLITE_OS_TRACE_PROC
-  {
-    extern void SQLITE_OS_TRACE_PROC(const char *zBuf, int nBuf);
-    SQLITE_OS_TRACE_PROC(zBuf, sizeof(zBuf));
-  }
-#else
-  fprintf(stdout,"%s", zBuf);
-  fflush(stdout);
-#endif
-}
-#endif
-
-
-/*
-** variable-argument wrapper around tdsqlite3_str_vappendf(). The bFlags argument
-** can contain the bit SQLITE_PRINTF_INTERNAL enable internal formats.
-*/
-SQLITE_API void tdsqlite3_str_appendf(StrAccum *p, const char *zFormat, ...){
-  va_list ap;
-  va_start(ap,zFormat);
-  tdsqlite3_str_vappendf(p, zFormat, ap);
-  va_end(ap);
-}
-
-/************** End of printf.c **********************************************/
-/************** Begin file treeview.c ****************************************/
-/*
-** 2015-06-08
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains C code to implement the TreeView debugging routines.
-** These routines print a parse tree to standard output for debugging and
-** analysis. 
-**
-** The interfaces in this file is only available when compiling
-** with SQLITE_DEBUG.
-*/
-/* #include "sqliteInt.h" */
-#ifdef SQLITE_DEBUG
-
-/*
-** Add a new subitem to the tree.  The moreToFollow flag indicates that this
-** is not the last item in the tree.
-*/
-static TreeView *tdsqlite3TreeViewPush(TreeView *p, u8 moreToFollow){
-  if( p==0 ){
-    p = tdsqlite3_malloc64( sizeof(*p) );
-    if( p==0 ) return 0;
-    memset(p, 0, sizeof(*p));
-  }else{
-    p->iLevel++;
-  }
-  assert( moreToFollow==0 || moreToFollow==1 );
-  if( p->iLevel<sizeof(p->bLine) ) p->bLine[p->iLevel] = moreToFollow;
-  return p;
-}
-
-/*
-** Finished with one layer of the tree
-*/
-static void tdsqlite3TreeViewPop(TreeView *p){
-  if( p==0 ) return;
-  p->iLevel--;
-  if( p->iLevel<0 ) tdsqlite3_free(p);
-}
-
-/*
-** Generate a single line of output for the tree, with a prefix that contains
-** all the appropriate tree lines
-*/
-static void tdsqlite3TreeViewLine(TreeView *p, const char *zFormat, ...){
-  va_list ap;
-  int i;
-  StrAccum acc;
-  char zBuf[500];
-  tdsqlite3StrAccumInit(&acc, 0, zBuf, sizeof(zBuf), 0);
-  if( p ){
-    for(i=0; i<p->iLevel && i<sizeof(p->bLine)-1; i++){
-      tdsqlite3_str_append(&acc, p->bLine[i] ? "|   " : "    ", 4);
-    }
-    tdsqlite3_str_append(&acc, p->bLine[i] ? "|-- " : "'-- ", 4);
-  }
-  if( zFormat!=0 ){
-    va_start(ap, zFormat);
-    tdsqlite3_str_vappendf(&acc, zFormat, ap);
-    va_end(ap);
-    assert( acc.nChar>0 || acc.accError );
-    tdsqlite3_str_append(&acc, "\n", 1);
-  }
-  tdsqlite3StrAccumFinish(&acc);
-  fprintf(stdout,"%s", zBuf);
-  fflush(stdout);
-}
-
-/*
-** Shorthand for starting a new tree item that consists of a single label
-*/
-static void tdsqlite3TreeViewItem(TreeView *p, const char *zLabel,u8 moreFollows){
-  p = tdsqlite3TreeViewPush(p, moreFollows);
-  tdsqlite3TreeViewLine(p, "%s", zLabel);
-}
-
-/*
-** Generate a human-readable description of a WITH clause.
-*/
-SQLITE_PRIVATE void tdsqlite3TreeViewWith(TreeView *pView, const With *pWith, u8 moreToFollow){
-  int i;
-  if( pWith==0 ) return;
-  if( pWith->nCte==0 ) return;
-  if( pWith->pOuter ){
-    tdsqlite3TreeViewLine(pView, "WITH (0x%p, pOuter=0x%p)",pWith,pWith->pOuter);
-  }else{
-    tdsqlite3TreeViewLine(pView, "WITH (0x%p)", pWith);
-  }
-  if( pWith->nCte>0 ){
-    pView = tdsqlite3TreeViewPush(pView, 1);
-    for(i=0; i<pWith->nCte; i++){
-      StrAccum x;
-      char zLine[1000];
-      const struct Cte *pCte = &pWith->a[i];
-      tdsqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0);
-      tdsqlite3_str_appendf(&x, "%s", pCte->zName);
-      if( pCte->pCols && pCte->pCols->nExpr>0 ){
-        char cSep = '(';
-        int j;
-        for(j=0; j<pCte->pCols->nExpr; j++){
-          tdsqlite3_str_appendf(&x, "%c%s", cSep, pCte->pCols->a[j].zEName);
-          cSep = ',';
-        }
-        tdsqlite3_str_appendf(&x, ")");
-      }
-      tdsqlite3_str_appendf(&x, " AS");
-      tdsqlite3StrAccumFinish(&x);
-      tdsqlite3TreeViewItem(pView, zLine, i<pWith->nCte-1);
-      tdsqlite3TreeViewSelect(pView, pCte->pSelect, 0);
-      tdsqlite3TreeViewPop(pView);
-    }
-    tdsqlite3TreeViewPop(pView);
-  }
-}
-
-/*
-** Generate a human-readable description of a SrcList object.
-*/
-SQLITE_PRIVATE void tdsqlite3TreeViewSrcList(TreeView *pView, const SrcList *pSrc){
-  int i;
-  for(i=0; i<pSrc->nSrc; i++){
-    const struct SrcList_item *pItem = &pSrc->a[i];
-    StrAccum x;
-    char zLine[100];
-    tdsqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0);
-    tdsqlite3_str_appendf(&x, "{%d:*}", pItem->iCursor);
-    if( pItem->zDatabase ){
-      tdsqlite3_str_appendf(&x, " %s.%s", pItem->zDatabase, pItem->zName);
-    }else if( pItem->zName ){
-      tdsqlite3_str_appendf(&x, " %s", pItem->zName);
-    }
-    if( pItem->pTab ){
-      tdsqlite3_str_appendf(&x, " tab=%Q nCol=%d ptr=%p",
-           pItem->pTab->zName, pItem->pTab->nCol, pItem->pTab);
-    }
-    if( pItem->zAlias ){
-      tdsqlite3_str_appendf(&x, " (AS %s)", pItem->zAlias);
-    }
-    if( pItem->fg.jointype & JT_LEFT ){
-      tdsqlite3_str_appendf(&x, " LEFT-JOIN");
-    }
-    if( pItem->fg.fromDDL ){
-      tdsqlite3_str_appendf(&x, " DDL");
-    }
-    tdsqlite3StrAccumFinish(&x);
-    tdsqlite3TreeViewItem(pView, zLine, i<pSrc->nSrc-1); 
-    if( pItem->pSelect ){
-      tdsqlite3TreeViewSelect(pView, pItem->pSelect, 0);
-    }
-    if( pItem->fg.isTabFunc ){
-      tdsqlite3TreeViewExprList(pView, pItem->u1.pFuncArg, 0, "func-args:");
-    }
-    tdsqlite3TreeViewPop(pView);
-  }
-}
-
-/*
-** Generate a human-readable description of a Select object.
-*/
-SQLITE_PRIVATE void tdsqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 moreToFollow){
-  int n = 0;
-  int cnt = 0;
-  if( p==0 ){
-    tdsqlite3TreeViewLine(pView, "nil-SELECT");
-    return;
-  } 
-  pView = tdsqlite3TreeViewPush(pView, moreToFollow);
-  if( p->pWith ){
-    tdsqlite3TreeViewWith(pView, p->pWith, 1);
-    cnt = 1;
-    tdsqlite3TreeViewPush(pView, 1);
-  }
-  do{
-    if( p->selFlags & SF_WhereBegin ){
-      tdsqlite3TreeViewLine(pView, "tdsqlite3WhereBegin()");
-    }else{
-      tdsqlite3TreeViewLine(pView,
-        "SELECT%s%s (%u/%p) selFlags=0x%x nSelectRow=%d",
-        ((p->selFlags & SF_Distinct) ? " DISTINCT" : ""),
-        ((p->selFlags & SF_Aggregate) ? " agg_flag" : ""),
-        p->selId, p, p->selFlags,
-        (int)p->nSelectRow
-      );
-    }
-    if( cnt++ ) tdsqlite3TreeViewPop(pView);
-    if( p->pPrior ){
-      n = 1000;
-    }else{
-      n = 0;
-      if( p->pSrc && p->pSrc->nSrc ) n++;
-      if( p->pWhere ) n++;
-      if( p->pGroupBy ) n++;
-      if( p->pHaving ) n++;
-      if( p->pOrderBy ) n++;
-      if( p->pLimit ) n++;
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      if( p->pWin ) n++;
-      if( p->pWinDefn ) n++;
-#endif
-    }
-    if( p->pEList ){
-      tdsqlite3TreeViewExprList(pView, p->pEList, n>0, "result-set");
-    }
-    n--;
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    if( p->pWin ){
-      Window *pX;
-      pView = tdsqlite3TreeViewPush(pView, (n--)>0);
-      tdsqlite3TreeViewLine(pView, "window-functions");
-      for(pX=p->pWin; pX; pX=pX->pNextWin){
-        tdsqlite3TreeViewWinFunc(pView, pX, pX->pNextWin!=0);
-      }
-      tdsqlite3TreeViewPop(pView);
-    }
-#endif
-    if( p->pSrc && p->pSrc->nSrc ){
-      pView = tdsqlite3TreeViewPush(pView, (n--)>0);
-      tdsqlite3TreeViewLine(pView, "FROM");
-      tdsqlite3TreeViewSrcList(pView, p->pSrc);
-      tdsqlite3TreeViewPop(pView);
-    }
-    if( p->pWhere ){
-      tdsqlite3TreeViewItem(pView, "WHERE", (n--)>0);
-      tdsqlite3TreeViewExpr(pView, p->pWhere, 0);
-      tdsqlite3TreeViewPop(pView);
-    }
-    if( p->pGroupBy ){
-      tdsqlite3TreeViewExprList(pView, p->pGroupBy, (n--)>0, "GROUPBY");
-    }
-    if( p->pHaving ){
-      tdsqlite3TreeViewItem(pView, "HAVING", (n--)>0);
-      tdsqlite3TreeViewExpr(pView, p->pHaving, 0);
-      tdsqlite3TreeViewPop(pView);
-    }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    if( p->pWinDefn ){
-      Window *pX;
-      tdsqlite3TreeViewItem(pView, "WINDOW", (n--)>0);
-      for(pX=p->pWinDefn; pX; pX=pX->pNextWin){
-        tdsqlite3TreeViewWindow(pView, pX, pX->pNextWin!=0);
-      }
-      tdsqlite3TreeViewPop(pView);
-    }
-#endif
-    if( p->pOrderBy ){
-      tdsqlite3TreeViewExprList(pView, p->pOrderBy, (n--)>0, "ORDERBY");
-    }
-    if( p->pLimit ){
-      tdsqlite3TreeViewItem(pView, "LIMIT", (n--)>0);
-      tdsqlite3TreeViewExpr(pView, p->pLimit->pLeft, p->pLimit->pRight!=0);
-      if( p->pLimit->pRight ){
-        tdsqlite3TreeViewItem(pView, "OFFSET", (n--)>0);
-        tdsqlite3TreeViewExpr(pView, p->pLimit->pRight, 0);
-        tdsqlite3TreeViewPop(pView);
-      }
-      tdsqlite3TreeViewPop(pView);
-    }
-    if( p->pPrior ){
-      const char *zOp = "UNION";
-      switch( p->op ){
-        case TK_ALL:         zOp = "UNION ALL";  break;
-        case TK_INTERSECT:   zOp = "INTERSECT";  break;
-        case TK_EXCEPT:      zOp = "EXCEPT";     break;
-      }
-      tdsqlite3TreeViewItem(pView, zOp, 1);
-    }
-    p = p->pPrior;
-  }while( p!=0 );
-  tdsqlite3TreeViewPop(pView);
-}
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-/*
-** Generate a description of starting or stopping bounds
-*/
-SQLITE_PRIVATE void tdsqlite3TreeViewBound(
-  TreeView *pView,        /* View context */
-  u8 eBound,              /* UNBOUNDED, CURRENT, PRECEDING, FOLLOWING */
-  Expr *pExpr,            /* Value for PRECEDING or FOLLOWING */
-  u8 moreToFollow         /* True if more to follow */
-){
-  switch( eBound ){
-    case TK_UNBOUNDED: {
-      tdsqlite3TreeViewItem(pView, "UNBOUNDED", moreToFollow);
-      tdsqlite3TreeViewPop(pView);
-      break;
-    }
-    case TK_CURRENT: {
-      tdsqlite3TreeViewItem(pView, "CURRENT", moreToFollow);
-      tdsqlite3TreeViewPop(pView);
-      break;
-    }
-    case TK_PRECEDING: {
-      tdsqlite3TreeViewItem(pView, "PRECEDING", moreToFollow);
-      tdsqlite3TreeViewExpr(pView, pExpr, 0);
-      tdsqlite3TreeViewPop(pView);
-      break;
-    }
-    case TK_FOLLOWING: {
-      tdsqlite3TreeViewItem(pView, "FOLLOWING", moreToFollow);
-      tdsqlite3TreeViewExpr(pView, pExpr, 0);
-      tdsqlite3TreeViewPop(pView);
-      break;
-    }
-  }
-}
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-/*
-** Generate a human-readable explanation for a Window object
-*/
-SQLITE_PRIVATE void tdsqlite3TreeViewWindow(TreeView *pView, const Window *pWin, u8 more){
-  int nElement = 0;
-  if( pWin->pFilter ){
-    tdsqlite3TreeViewItem(pView, "FILTER", 1);
-    tdsqlite3TreeViewExpr(pView, pWin->pFilter, 0);
-    tdsqlite3TreeViewPop(pView);
-  }
-  pView = tdsqlite3TreeViewPush(pView, more);
-  if( pWin->zName ){
-    tdsqlite3TreeViewLine(pView, "OVER %s (%p)", pWin->zName, pWin);
-  }else{
-    tdsqlite3TreeViewLine(pView, "OVER (%p)", pWin);
-  }
-  if( pWin->zBase )    nElement++;
-  if( pWin->pOrderBy ) nElement++;
-  if( pWin->eFrmType ) nElement++;
-  if( pWin->eExclude ) nElement++;
-  if( pWin->zBase ){
-    tdsqlite3TreeViewPush(pView, (--nElement)>0);
-    tdsqlite3TreeViewLine(pView, "window: %s", pWin->zBase);
-    tdsqlite3TreeViewPop(pView);
-  }
-  if( pWin->pPartition ){
-    tdsqlite3TreeViewExprList(pView, pWin->pPartition, nElement>0,"PARTITION-BY");
-  }
-  if( pWin->pOrderBy ){
-    tdsqlite3TreeViewExprList(pView, pWin->pOrderBy, (--nElement)>0, "ORDER-BY");
-  }
-  if( pWin->eFrmType ){
-    char zBuf[30];
-    const char *zFrmType = "ROWS";
-    if( pWin->eFrmType==TK_RANGE ) zFrmType = "RANGE";
-    if( pWin->eFrmType==TK_GROUPS ) zFrmType = "GROUPS";
-    tdsqlite3_snprintf(sizeof(zBuf),zBuf,"%s%s",zFrmType,
-        pWin->bImplicitFrame ? " (implied)" : "");
-    tdsqlite3TreeViewItem(pView, zBuf, (--nElement)>0);
-    tdsqlite3TreeViewBound(pView, pWin->eStart, pWin->pStart, 1);
-    tdsqlite3TreeViewBound(pView, pWin->eEnd, pWin->pEnd, 0);
-    tdsqlite3TreeViewPop(pView);
-  }
-  if( pWin->eExclude ){
-    char zBuf[30];
-    const char *zExclude;
-    switch( pWin->eExclude ){
-      case TK_NO:      zExclude = "NO OTHERS";   break;
-      case TK_CURRENT: zExclude = "CURRENT ROW"; break;
-      case TK_GROUP:   zExclude = "GROUP";       break;
-      case TK_TIES:    zExclude = "TIES";        break;
-      default:
-        tdsqlite3_snprintf(sizeof(zBuf),zBuf,"invalid(%d)", pWin->eExclude);
-        zExclude = zBuf;
-        break;
-    }
-    tdsqlite3TreeViewPush(pView, 0);
-    tdsqlite3TreeViewLine(pView, "EXCLUDE %s", zExclude);
-    tdsqlite3TreeViewPop(pView);
-  }
-  tdsqlite3TreeViewPop(pView);
-}
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-/*
-** Generate a human-readable explanation for a Window Function object
-*/
-SQLITE_PRIVATE void tdsqlite3TreeViewWinFunc(TreeView *pView, const Window *pWin, u8 more){
-  pView = tdsqlite3TreeViewPush(pView, more);
-  tdsqlite3TreeViewLine(pView, "WINFUNC %s(%d)",
-                       pWin->pFunc->zName, pWin->pFunc->nArg);
-  tdsqlite3TreeViewWindow(pView, pWin, 0);
-  tdsqlite3TreeViewPop(pView);
-}
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-/*
-** Generate a human-readable explanation of an expression tree.
-*/
-SQLITE_PRIVATE void tdsqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 moreToFollow){
-  const char *zBinOp = 0;   /* Binary operator */
-  const char *zUniOp = 0;   /* Unary operator */
-  char zFlgs[60];
-  pView = tdsqlite3TreeViewPush(pView, moreToFollow);
-  if( pExpr==0 ){
-    tdsqlite3TreeViewLine(pView, "nil");
-    tdsqlite3TreeViewPop(pView);
-    return;
-  }
-  if( pExpr->flags || pExpr->affExpr ){
-    StrAccum x;
-    tdsqlite3StrAccumInit(&x, 0, zFlgs, sizeof(zFlgs), 0);
-    tdsqlite3_str_appendf(&x, " fg.af=%x.%c",
-      pExpr->flags, pExpr->affExpr ? pExpr->affExpr : 'n');
-    if( ExprHasProperty(pExpr, EP_FromJoin) ){
-      tdsqlite3_str_appendf(&x, " iRJT=%d", pExpr->iRightJoinTable);
-    }
-    if( ExprHasProperty(pExpr, EP_FromDDL) ){
-      tdsqlite3_str_appendf(&x, " DDL");
-    }
-    tdsqlite3StrAccumFinish(&x);
-  }else{
-    zFlgs[0] = 0;
-  }
-  switch( pExpr->op ){
-    case TK_AGG_COLUMN: {
-      tdsqlite3TreeViewLine(pView, "AGG{%d:%d}%s",
-            pExpr->iTable, pExpr->iColumn, zFlgs);
-      break;
-    }
-    case TK_COLUMN: {
-      if( pExpr->iTable<0 ){
-        /* This only happens when coding check constraints */
-        char zOp2[16];
-        if( pExpr->op2 ){
-          tdsqlite3_snprintf(sizeof(zOp2),zOp2," op2=0x%02x",pExpr->op2);
-        }else{
-          zOp2[0] = 0;
-        }
-        tdsqlite3TreeViewLine(pView, "COLUMN(%d)%s%s",
-                                    pExpr->iColumn, zFlgs, zOp2);
-      }else{
-        tdsqlite3TreeViewLine(pView, "{%d:%d} pTab=%p%s",
-                        pExpr->iTable, pExpr->iColumn,
-                        pExpr->y.pTab, zFlgs);
-      }
-      if( ExprHasProperty(pExpr, EP_FixedCol) ){
-        tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
-      }
-      break;
-    }
-    case TK_INTEGER: {
-      if( pExpr->flags & EP_IntValue ){
-        tdsqlite3TreeViewLine(pView, "%d", pExpr->u.iValue);
-      }else{
-        tdsqlite3TreeViewLine(pView, "%s", pExpr->u.zToken);
-      }
-      break;
-    }
-#ifndef SQLITE_OMIT_FLOATING_POINT
-    case TK_FLOAT: {
-      tdsqlite3TreeViewLine(pView,"%s", pExpr->u.zToken);
-      break;
-    }
-#endif
-    case TK_STRING: {
-      tdsqlite3TreeViewLine(pView,"%Q", pExpr->u.zToken);
-      break;
-    }
-    case TK_NULL: {
-      tdsqlite3TreeViewLine(pView,"NULL");
-      break;
-    }
-    case TK_TRUEFALSE: {
-      tdsqlite3TreeViewLine(pView,
-         tdsqlite3ExprTruthValue(pExpr) ? "TRUE" : "FALSE");
-      break;
-    }
-#ifndef SQLITE_OMIT_BLOB_LITERAL
-    case TK_BLOB: {
-      tdsqlite3TreeViewLine(pView,"%s", pExpr->u.zToken);
-      break;
-    }
-#endif
-    case TK_VARIABLE: {
-      tdsqlite3TreeViewLine(pView,"VARIABLE(%s,%d)",
-                          pExpr->u.zToken, pExpr->iColumn);
-      break;
-    }
-    case TK_REGISTER: {
-      tdsqlite3TreeViewLine(pView,"REGISTER(%d)", pExpr->iTable);
-      break;
-    }
-    case TK_ID: {
-      tdsqlite3TreeViewLine(pView,"ID \"%w\"", pExpr->u.zToken);
-      break;
-    }
-#ifndef SQLITE_OMIT_CAST
-    case TK_CAST: {
-      /* Expressions of the form:   CAST(pLeft AS token) */
-      tdsqlite3TreeViewLine(pView,"CAST %Q", pExpr->u.zToken);
-      tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
-      break;
-    }
-#endif /* SQLITE_OMIT_CAST */
-    case TK_LT:      zBinOp = "LT";     break;
-    case TK_LE:      zBinOp = "LE";     break;
-    case TK_GT:      zBinOp = "GT";     break;
-    case TK_GE:      zBinOp = "GE";     break;
-    case TK_NE:      zBinOp = "NE";     break;
-    case TK_EQ:      zBinOp = "EQ";     break;
-    case TK_IS:      zBinOp = "IS";     break;
-    case TK_ISNOT:   zBinOp = "ISNOT";  break;
-    case TK_AND:     zBinOp = "AND";    break;
-    case TK_OR:      zBinOp = "OR";     break;
-    case TK_PLUS:    zBinOp = "ADD";    break;
-    case TK_STAR:    zBinOp = "MUL";    break;
-    case TK_MINUS:   zBinOp = "SUB";    break;
-    case TK_REM:     zBinOp = "REM";    break;
-    case TK_BITAND:  zBinOp = "BITAND"; break;
-    case TK_BITOR:   zBinOp = "BITOR";  break;
-    case TK_SLASH:   zBinOp = "DIV";    break;
-    case TK_LSHIFT:  zBinOp = "LSHIFT"; break;
-    case TK_RSHIFT:  zBinOp = "RSHIFT"; break;
-    case TK_CONCAT:  zBinOp = "CONCAT"; break;
-    case TK_DOT:     zBinOp = "DOT";    break;
-
-    case TK_UMINUS:  zUniOp = "UMINUS"; break;
-    case TK_UPLUS:   zUniOp = "UPLUS";  break;
-    case TK_BITNOT:  zUniOp = "BITNOT"; break;
-    case TK_NOT:     zUniOp = "NOT";    break;
-    case TK_ISNULL:  zUniOp = "ISNULL"; break;
-    case TK_NOTNULL: zUniOp = "NOTNULL"; break;
-
-    case TK_TRUTH: {
-      int x;
-      const char *azOp[] = {
-         "IS-FALSE", "IS-TRUE", "IS-NOT-FALSE", "IS-NOT-TRUE"
-      };
-      assert( pExpr->op2==TK_IS || pExpr->op2==TK_ISNOT );
-      assert( pExpr->pRight );
-      assert( tdsqlite3ExprSkipCollate(pExpr->pRight)->op==TK_TRUEFALSE );
-      x = (pExpr->op2==TK_ISNOT)*2 + tdsqlite3ExprTruthValue(pExpr->pRight);
-      zUniOp = azOp[x];
-      break;
-    }
-
-    case TK_SPAN: {
-      tdsqlite3TreeViewLine(pView, "SPAN %Q", pExpr->u.zToken);
-      tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
-      break;
-    }
-
-    case TK_COLLATE: {
-      /* COLLATE operators without the EP_Collate flag are intended to
-      ** emulate collation associated with a table column.  These show
-      ** up in the treeview output as "SOFT-COLLATE".  Explicit COLLATE
-      ** operators that appear in the original SQL always have the
-      ** EP_Collate bit set and appear in treeview output as just "COLLATE" */
-      tdsqlite3TreeViewLine(pView, "%sCOLLATE %Q%s",
-        !ExprHasProperty(pExpr, EP_Collate) ? "SOFT-" : "",
-        pExpr->u.zToken, zFlgs);
-      tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
-      break;
-    }
-
-    case TK_AGG_FUNCTION:
-    case TK_FUNCTION: {
-      ExprList *pFarg;       /* List of function arguments */
-      Window *pWin;
-      if( ExprHasProperty(pExpr, EP_TokenOnly) ){
-        pFarg = 0;
-        pWin = 0;
-      }else{
-        pFarg = pExpr->x.pList;
-#ifndef SQLITE_OMIT_WINDOWFUNC
-        pWin = ExprHasProperty(pExpr, EP_WinFunc) ? pExpr->y.pWin : 0;
-#else
-        pWin = 0;
-#endif 
-      }
-      if( pExpr->op==TK_AGG_FUNCTION ){
-        tdsqlite3TreeViewLine(pView, "AGG_FUNCTION%d %Q%s",
-                             pExpr->op2, pExpr->u.zToken, zFlgs);
-      }else if( pExpr->op2!=0 ){
-        const char *zOp2;
-        char zBuf[8];
-        tdsqlite3_snprintf(sizeof(zBuf),zBuf,"0x%02x",pExpr->op2);
-        zOp2 = zBuf;
-        if( pExpr->op2==NC_IsCheck ) zOp2 = "NC_IsCheck";
-        if( pExpr->op2==NC_IdxExpr ) zOp2 = "NC_IdxExpr";
-        if( pExpr->op2==NC_PartIdx ) zOp2 = "NC_PartIdx";
-        if( pExpr->op2==NC_GenCol ) zOp2 = "NC_GenCol";
-        tdsqlite3TreeViewLine(pView, "FUNCTION %Q%s op2=%s",
-                            pExpr->u.zToken, zFlgs, zOp2);
-      }else{
-        tdsqlite3TreeViewLine(pView, "FUNCTION %Q%s", pExpr->u.zToken, zFlgs);
-      }
-      if( pFarg ){
-        tdsqlite3TreeViewExprList(pView, pFarg, pWin!=0, 0);
-      }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      if( pWin ){
-        tdsqlite3TreeViewWindow(pView, pWin, 0);
-      }
-#endif
-      break;
-    }
-#ifndef SQLITE_OMIT_SUBQUERY
-    case TK_EXISTS: {
-      tdsqlite3TreeViewLine(pView, "EXISTS-expr flags=0x%x", pExpr->flags);
-      tdsqlite3TreeViewSelect(pView, pExpr->x.pSelect, 0);
-      break;
-    }
-    case TK_SELECT: {
-      tdsqlite3TreeViewLine(pView, "SELECT-expr flags=0x%x", pExpr->flags);
-      tdsqlite3TreeViewSelect(pView, pExpr->x.pSelect, 0);
-      break;
-    }
-    case TK_IN: {
-      tdsqlite3TreeViewLine(pView, "IN flags=0x%x", pExpr->flags);
-      tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 1);
-      if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-        tdsqlite3TreeViewSelect(pView, pExpr->x.pSelect, 0);
-      }else{
-        tdsqlite3TreeViewExprList(pView, pExpr->x.pList, 0, 0);
-      }
-      break;
-    }
-#endif /* SQLITE_OMIT_SUBQUERY */
-
-    /*
-    **    x BETWEEN y AND z
-    **
-    ** This is equivalent to
-    **
-    **    x>=y AND x<=z
-    **
-    ** X is stored in pExpr->pLeft.
-    ** Y is stored in pExpr->pList->a[0].pExpr.
-    ** Z is stored in pExpr->pList->a[1].pExpr.
-    */
-    case TK_BETWEEN: {
-      Expr *pX = pExpr->pLeft;
-      Expr *pY = pExpr->x.pList->a[0].pExpr;
-      Expr *pZ = pExpr->x.pList->a[1].pExpr;
-      tdsqlite3TreeViewLine(pView, "BETWEEN");
-      tdsqlite3TreeViewExpr(pView, pX, 1);
-      tdsqlite3TreeViewExpr(pView, pY, 1);
-      tdsqlite3TreeViewExpr(pView, pZ, 0);
-      break;
-    }
-    case TK_TRIGGER: {
-      /* If the opcode is TK_TRIGGER, then the expression is a reference
-      ** to a column in the new.* or old.* pseudo-tables available to
-      ** trigger programs. In this case Expr.iTable is set to 1 for the
-      ** new.* pseudo-table, or 0 for the old.* pseudo-table. Expr.iColumn
-      ** is set to the column of the pseudo-table to read, or to -1 to
-      ** read the rowid field.
-      */
-      tdsqlite3TreeViewLine(pView, "%s(%d)", 
-          pExpr->iTable ? "NEW" : "OLD", pExpr->iColumn);
-      break;
-    }
-    case TK_CASE: {
-      tdsqlite3TreeViewLine(pView, "CASE");
-      tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 1);
-      tdsqlite3TreeViewExprList(pView, pExpr->x.pList, 0, 0);
-      break;
-    }
-#ifndef SQLITE_OMIT_TRIGGER
-    case TK_RAISE: {
-      const char *zType = "unk";
-      switch( pExpr->affExpr ){
-        case OE_Rollback:   zType = "rollback";  break;
-        case OE_Abort:      zType = "abort";     break;
-        case OE_Fail:       zType = "fail";      break;
-        case OE_Ignore:     zType = "ignore";    break;
-      }
-      tdsqlite3TreeViewLine(pView, "RAISE %s(%Q)", zType, pExpr->u.zToken);
-      break;
-    }
-#endif
-    case TK_MATCH: {
-      tdsqlite3TreeViewLine(pView, "MATCH {%d:%d}%s",
-                          pExpr->iTable, pExpr->iColumn, zFlgs);
-      tdsqlite3TreeViewExpr(pView, pExpr->pRight, 0);
-      break;
-    }
-    case TK_VECTOR: {
-      char *z = tdsqlite3_mprintf("VECTOR%s",zFlgs);
-      tdsqlite3TreeViewBareExprList(pView, pExpr->x.pList, z);
-      tdsqlite3_free(z);
-      break;
-    }
-    case TK_SELECT_COLUMN: {
-      tdsqlite3TreeViewLine(pView, "SELECT-COLUMN %d", pExpr->iColumn);
-      tdsqlite3TreeViewSelect(pView, pExpr->pLeft->x.pSelect, 0);
-      break;
-    }
-    case TK_IF_NULL_ROW: {
-      tdsqlite3TreeViewLine(pView, "IF-NULL-ROW %d", pExpr->iTable);
-      tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
-      break;
-    }
-    default: {
-      tdsqlite3TreeViewLine(pView, "op=%d", pExpr->op);
-      break;
-    }
-  }
-  if( zBinOp ){
-    tdsqlite3TreeViewLine(pView, "%s%s", zBinOp, zFlgs);
-    tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 1);
-    tdsqlite3TreeViewExpr(pView, pExpr->pRight, 0);
-  }else if( zUniOp ){
-    tdsqlite3TreeViewLine(pView, "%s%s", zUniOp, zFlgs);
-   tdsqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
-  }
-  tdsqlite3TreeViewPop(pView);
-}
-
-
-/*
-** Generate a human-readable explanation of an expression list.
-*/
-SQLITE_PRIVATE void tdsqlite3TreeViewBareExprList(
-  TreeView *pView,
-  const ExprList *pList,
-  const char *zLabel
-){
-  if( zLabel==0 || zLabel[0]==0 ) zLabel = "LIST";
-  if( pList==0 ){
-    tdsqlite3TreeViewLine(pView, "%s (empty)", zLabel);
-  }else{
-    int i;
-    tdsqlite3TreeViewLine(pView, "%s", zLabel);
-    for(i=0; i<pList->nExpr; i++){
-      int j = pList->a[i].u.x.iOrderByCol;
-      char *zName = pList->a[i].zEName;
-      int moreToFollow = i<pList->nExpr - 1;
-      if( pList->a[i].eEName!=ENAME_NAME ) zName = 0;
-      if( j || zName ){
-        tdsqlite3TreeViewPush(pView, moreToFollow);
-        moreToFollow = 0;
-        tdsqlite3TreeViewLine(pView, 0);
-        if( zName ){
-          fprintf(stdout, "AS %s ", zName);
-        }
-        if( j ){
-          fprintf(stdout, "iOrderByCol=%d", j);
-        }
-        fprintf(stdout, "\n");
-        fflush(stdout);
-      }
-      tdsqlite3TreeViewExpr(pView, pList->a[i].pExpr, moreToFollow);
-      if( j || zName ){
-        tdsqlite3TreeViewPop(pView);
-      }
-    }
-  }
-}
-SQLITE_PRIVATE void tdsqlite3TreeViewExprList(
-  TreeView *pView,
-  const ExprList *pList,
-  u8 moreToFollow,
-  const char *zLabel
-){
-  pView = tdsqlite3TreeViewPush(pView, moreToFollow);
-  tdsqlite3TreeViewBareExprList(pView, pList, zLabel);
-  tdsqlite3TreeViewPop(pView);
-}
-
-#endif /* SQLITE_DEBUG */
-
-/************** End of treeview.c ********************************************/
-/************** Begin file random.c ******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code to implement a pseudo-random number
-** generator (PRNG) for SQLite.
-**
-** Random numbers are used by some of the database backends in order
-** to generate random integer keys for tables or random filenames.
-*/
-/* #include "sqliteInt.h" */
-
-
-/* All threads share a single random number generator.
-** This structure is the current state of the generator.
-*/
-static SQLITE_WSD struct tdsqlite3PrngType {
-  unsigned char isInit;          /* True if initialized */
-  unsigned char i, j;            /* State variables */
-  unsigned char s[256];          /* State variables */
-} tdsqlite3Prng;
-
-/*
-** Return N random bytes.
-*/
-SQLITE_API void tdsqlite3_randomness(int N, void *pBuf){
-  unsigned char t;
-  unsigned char *zBuf = pBuf;
-
-  /* The "wsdPrng" macro will resolve to the pseudo-random number generator
-  ** state vector.  If writable static data is unsupported on the target,
-  ** we have to locate the state vector at run-time.  In the more common
-  ** case where writable static data is supported, wsdPrng can refer directly
-  ** to the "tdsqlite3Prng" state vector declared above.
-  */
-#ifdef SQLITE_OMIT_WSD
-  struct tdsqlite3PrngType *p = &GLOBAL(struct tdsqlite3PrngType, tdsqlite3Prng);
-# define wsdPrng p[0]
-#else
-# define wsdPrng tdsqlite3Prng
-#endif
-
-#if SQLITE_THREADSAFE
-  tdsqlite3_mutex *mutex;
-#endif
-
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return;
-#endif
-
-#if SQLITE_THREADSAFE
-  mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_PRNG);
-#endif
-
-  tdsqlite3_mutex_enter(mutex);
-  if( N<=0 || pBuf==0 ){
-    wsdPrng.isInit = 0;
-    tdsqlite3_mutex_leave(mutex);
-    return;
-  }
-
-  /* Initialize the state of the random number generator once,
-  ** the first time this routine is called.  The seed value does
-  ** not need to contain a lot of randomness since we are not
-  ** trying to do secure encryption or anything like that...
-  **
-  ** Nothing in this file or anywhere else in SQLite does any kind of
-  ** encryption.  The RC4 algorithm is being used as a PRNG (pseudo-random
-  ** number generator) not as an encryption device.
-  */
-  if( !wsdPrng.isInit ){
-    int i;
-    char k[256];
-    wsdPrng.j = 0;
-    wsdPrng.i = 0;
-    tdsqlite3OsRandomness(tdsqlite3_vfs_find(0), 256, k);
-    for(i=0; i<256; i++){
-      wsdPrng.s[i] = (u8)i;
-    }
-    for(i=0; i<256; i++){
-      wsdPrng.j += wsdPrng.s[i] + k[i];
-      t = wsdPrng.s[wsdPrng.j];
-      wsdPrng.s[wsdPrng.j] = wsdPrng.s[i];
-      wsdPrng.s[i] = t;
-    }
-    wsdPrng.isInit = 1;
-  }
-
-  assert( N>0 );
-  do{
-    wsdPrng.i++;
-    t = wsdPrng.s[wsdPrng.i];
-    wsdPrng.j += t;
-    wsdPrng.s[wsdPrng.i] = wsdPrng.s[wsdPrng.j];
-    wsdPrng.s[wsdPrng.j] = t;
-    t += wsdPrng.s[wsdPrng.i];
-    *(zBuf++) = wsdPrng.s[t];
-  }while( --N );
-  tdsqlite3_mutex_leave(mutex);
-}
-
-#ifndef SQLITE_UNTESTABLE
-/*
-** For testing purposes, we sometimes want to preserve the state of
-** PRNG and restore the PRNG to its saved state at a later time, or
-** to reset the PRNG to its initial state.  These routines accomplish
-** those tasks.
-**
-** The tdsqlite3_test_control() interface calls these routines to
-** control the PRNG.
-*/
-static SQLITE_WSD struct tdsqlite3PrngType tdsqlite3SavedPrng;
-SQLITE_PRIVATE void tdsqlite3PrngSaveState(void){
-  memcpy(
-    &GLOBAL(struct tdsqlite3PrngType, tdsqlite3SavedPrng),
-    &GLOBAL(struct tdsqlite3PrngType, tdsqlite3Prng),
-    sizeof(tdsqlite3Prng)
-  );
-}
-SQLITE_PRIVATE void tdsqlite3PrngRestoreState(void){
-  memcpy(
-    &GLOBAL(struct tdsqlite3PrngType, tdsqlite3Prng),
-    &GLOBAL(struct tdsqlite3PrngType, tdsqlite3SavedPrng),
-    sizeof(tdsqlite3Prng)
-  );
-}
-#endif /* SQLITE_UNTESTABLE */
-
-/************** End of random.c **********************************************/
-/************** Begin file threads.c *****************************************/
-/*
-** 2012 July 21
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file presents a simple cross-platform threading interface for
-** use internally by SQLite.
-**
-** A "thread" can be created using tdsqlite3ThreadCreate().  This thread
-** runs independently of its creator until it is joined using
-** tdsqlite3ThreadJoin(), at which point it terminates.
-**
-** Threads do not have to be real.  It could be that the work of the
-** "thread" is done by the main thread at either the tdsqlite3ThreadCreate()
-** or tdsqlite3ThreadJoin() call.  This is, in fact, what happens in
-** single threaded systems.  Nothing in SQLite requires multiple threads.
-** This interface exists so that applications that want to take advantage
-** of multiple cores can do so, while also allowing applications to stay
-** single-threaded if desired.
-*/
-/* #include "sqliteInt.h" */
-#if SQLITE_OS_WIN
-/* #  include "os_win.h" */
-#endif
-
-#if SQLITE_MAX_WORKER_THREADS>0
-
-/********************************* Unix Pthreads ****************************/
-#if SQLITE_OS_UNIX && defined(SQLITE_MUTEX_PTHREADS) && SQLITE_THREADSAFE>0
-
-#define SQLITE_THREADS_IMPLEMENTED 1  /* Prevent the single-thread code below */
-/* #include <pthread.h> */
-
-/* A running thread */
-struct SQLiteThread {
-  pthread_t tid;                 /* Thread ID */
-  int done;                      /* Set to true when thread finishes */
-  void *pOut;                    /* Result returned by the thread */
-  void *(*xTask)(void*);         /* The thread routine */
-  void *pIn;                     /* Argument to the thread */
-};
-
-/* Create a new thread */
-SQLITE_PRIVATE int tdsqlite3ThreadCreate(
-  SQLiteThread **ppThread,  /* OUT: Write the thread object here */
-  void *(*xTask)(void*),    /* Routine to run in a separate thread */
-  void *pIn                 /* Argument passed into xTask() */
-){
-  SQLiteThread *p;
-  int rc;
-
-  assert( ppThread!=0 );
-  assert( xTask!=0 );
-  /* This routine is never used in single-threaded mode */
-  assert( tdsqlite3GlobalConfig.bCoreMutex!=0 );
-
-  *ppThread = 0;
-  p = tdsqlite3Malloc(sizeof(*p));
-  if( p==0 ) return SQLITE_NOMEM_BKPT;
-  memset(p, 0, sizeof(*p));
-  p->xTask = xTask;
-  p->pIn = pIn;
-  /* If the SQLITE_TESTCTRL_FAULT_INSTALL callback is registered to a 
-  ** function that returns SQLITE_ERROR when passed the argument 200, that
-  ** forces worker threads to run sequentially and deterministically 
-  ** for testing purposes. */
-  if( tdsqlite3FaultSim(200) ){
-    rc = 1;
-  }else{    
-    rc = pthread_create(&p->tid, 0, xTask, pIn);
-  }
-  if( rc ){
-    p->done = 1;
-    p->pOut = xTask(pIn);
-  }
-  *ppThread = p;
-  return SQLITE_OK;
-}
-
-/* Get the results of the thread */
-SQLITE_PRIVATE int tdsqlite3ThreadJoin(SQLiteThread *p, void **ppOut){
-  int rc;
-
-  assert( ppOut!=0 );
-  if( NEVER(p==0) ) return SQLITE_NOMEM_BKPT;
-  if( p->done ){
-    *ppOut = p->pOut;
-    rc = SQLITE_OK;
-  }else{
-    rc = pthread_join(p->tid, ppOut) ? SQLITE_ERROR : SQLITE_OK;
-  }
-  tdsqlite3_free(p);
-  return rc;
-}
-
-#endif /* SQLITE_OS_UNIX && defined(SQLITE_MUTEX_PTHREADS) */
-/******************************** End Unix Pthreads *************************/
-
-
-/********************************* Win32 Threads ****************************/
-#if SQLITE_OS_WIN_THREADS
-
-#define SQLITE_THREADS_IMPLEMENTED 1  /* Prevent the single-thread code below */
-#include <process.h>
-
-/* A running thread */
-struct SQLiteThread {
-  void *tid;               /* The thread handle */
-  unsigned id;             /* The thread identifier */
-  void *(*xTask)(void*);   /* The routine to run as a thread */
-  void *pIn;               /* Argument to xTask */
-  void *pResult;           /* Result of xTask */
-};
-
-/* Thread procedure Win32 compatibility shim */
-static unsigned __stdcall tdsqlite3ThreadProc(
-  void *pArg  /* IN: Pointer to the SQLiteThread structure */
-){
-  SQLiteThread *p = (SQLiteThread *)pArg;
-
-  assert( p!=0 );
-#if 0
-  /*
-  ** This assert appears to trigger spuriously on certain
-  ** versions of Windows, possibly due to _beginthreadex()
-  ** and/or CreateThread() not fully setting their thread
-  ** ID parameter before starting the thread.
-  */
-  assert( p->id==GetCurrentThreadId() );
-#endif
-  assert( p->xTask!=0 );
-  p->pResult = p->xTask(p->pIn);
-
-  _endthreadex(0);
-  return 0; /* NOT REACHED */
-}
-
-/* Create a new thread */
-SQLITE_PRIVATE int tdsqlite3ThreadCreate(
-  SQLiteThread **ppThread,  /* OUT: Write the thread object here */
-  void *(*xTask)(void*),    /* Routine to run in a separate thread */
-  void *pIn                 /* Argument passed into xTask() */
-){
-  SQLiteThread *p;
-
-  assert( ppThread!=0 );
-  assert( xTask!=0 );
-  *ppThread = 0;
-  p = tdsqlite3Malloc(sizeof(*p));
-  if( p==0 ) return SQLITE_NOMEM_BKPT;
-  /* If the SQLITE_TESTCTRL_FAULT_INSTALL callback is registered to a 
-  ** function that returns SQLITE_ERROR when passed the argument 200, that
-  ** forces worker threads to run sequentially and deterministically 
-  ** (via the tdsqlite3FaultSim() term of the conditional) for testing
-  ** purposes. */
-  if( tdsqlite3GlobalConfig.bCoreMutex==0 || tdsqlite3FaultSim(200) ){
-    memset(p, 0, sizeof(*p));
-  }else{
-    p->xTask = xTask;
-    p->pIn = pIn;
-    p->tid = (void*)_beginthreadex(0, 0, tdsqlite3ThreadProc, p, 0, &p->id);
-    if( p->tid==0 ){
-      memset(p, 0, sizeof(*p));
-    }
-  }
-  if( p->xTask==0 ){
-    p->id = GetCurrentThreadId();
-    p->pResult = xTask(pIn);
-  }
-  *ppThread = p;
-  return SQLITE_OK;
-}
-
-SQLITE_PRIVATE DWORD tdsqlite3Win32Wait(HANDLE hObject); /* os_win.c */
-
-/* Get the results of the thread */
-SQLITE_PRIVATE int tdsqlite3ThreadJoin(SQLiteThread *p, void **ppOut){
-  DWORD rc;
-  BOOL bRc;
-
-  assert( ppOut!=0 );
-  if( NEVER(p==0) ) return SQLITE_NOMEM_BKPT;
-  if( p->xTask==0 ){
-    /* assert( p->id==GetCurrentThreadId() ); */
-    rc = WAIT_OBJECT_0;
-    assert( p->tid==0 );
-  }else{
-    assert( p->id!=0 && p->id!=GetCurrentThreadId() );
-    rc = tdsqlite3Win32Wait((HANDLE)p->tid);
-    assert( rc!=WAIT_IO_COMPLETION );
-    bRc = CloseHandle((HANDLE)p->tid);
-    assert( bRc );
-  }
-  if( rc==WAIT_OBJECT_0 ) *ppOut = p->pResult;
-  tdsqlite3_free(p);
-  return (rc==WAIT_OBJECT_0) ? SQLITE_OK : SQLITE_ERROR;
-}
-
-#endif /* SQLITE_OS_WIN_THREADS */
-/******************************** End Win32 Threads *************************/
-
-
-/********************************* Single-Threaded **************************/
-#ifndef SQLITE_THREADS_IMPLEMENTED
-/*
-** This implementation does not actually create a new thread.  It does the
-** work of the thread in the main thread, when either the thread is created
-** or when it is joined
-*/
-
-/* A running thread */
-struct SQLiteThread {
-  void *(*xTask)(void*);   /* The routine to run as a thread */
-  void *pIn;               /* Argument to xTask */
-  void *pResult;           /* Result of xTask */
-};
-
-/* Create a new thread */
-SQLITE_PRIVATE int tdsqlite3ThreadCreate(
-  SQLiteThread **ppThread,  /* OUT: Write the thread object here */
-  void *(*xTask)(void*),    /* Routine to run in a separate thread */
-  void *pIn                 /* Argument passed into xTask() */
-){
-  SQLiteThread *p;
-
-  assert( ppThread!=0 );
-  assert( xTask!=0 );
-  *ppThread = 0;
-  p = tdsqlite3Malloc(sizeof(*p));
-  if( p==0 ) return SQLITE_NOMEM_BKPT;
-  if( (SQLITE_PTR_TO_INT(p)/17)&1 ){
-    p->xTask = xTask;
-    p->pIn = pIn;
-  }else{
-    p->xTask = 0;
-    p->pResult = xTask(pIn);
-  }
-  *ppThread = p;
-  return SQLITE_OK;
-}
-
-/* Get the results of the thread */
-SQLITE_PRIVATE int tdsqlite3ThreadJoin(SQLiteThread *p, void **ppOut){
-
-  assert( ppOut!=0 );
-  if( NEVER(p==0) ) return SQLITE_NOMEM_BKPT;
-  if( p->xTask ){
-    *ppOut = p->xTask(p->pIn);
-  }else{
-    *ppOut = p->pResult;
-  }
-  tdsqlite3_free(p);
-
-#if defined(SQLITE_TEST)
-  {
-    void *pTstAlloc = tdsqlite3Malloc(10);
-    if (!pTstAlloc) return SQLITE_NOMEM_BKPT;
-    tdsqlite3_free(pTstAlloc);
-  }
-#endif
-
-  return SQLITE_OK;
-}
-
-#endif /* !defined(SQLITE_THREADS_IMPLEMENTED) */
-/****************************** End Single-Threaded *************************/
-#endif /* SQLITE_MAX_WORKER_THREADS>0 */
-
-/************** End of threads.c *********************************************/
-/************** Begin file utf.c *********************************************/
-/*
-** 2004 April 13
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains routines used to translate between UTF-8, 
-** UTF-16, UTF-16BE, and UTF-16LE.
-**
-** Notes on UTF-8:
-**
-**   Byte-0    Byte-1    Byte-2    Byte-3    Value
-**  0xxxxxxx                                 00000000 00000000 0xxxxxxx
-**  110yyyyy  10xxxxxx                       00000000 00000yyy yyxxxxxx
-**  1110zzzz  10yyyyyy  10xxxxxx             00000000 zzzzyyyy yyxxxxxx
-**  11110uuu  10uuzzzz  10yyyyyy  10xxxxxx   000uuuuu zzzzyyyy yyxxxxxx
-**
-**
-** Notes on UTF-16:  (with wwww+1==uuuuu)
-**
-**      Word-0               Word-1          Value
-**  110110ww wwzzzzyy   110111yy yyxxxxxx    000uuuuu zzzzyyyy yyxxxxxx
-**  zzzzyyyy yyxxxxxx                        00000000 zzzzyyyy yyxxxxxx
-**
-**
-** BOM or Byte Order Mark:
-**     0xff 0xfe   little-endian utf-16 follows
-**     0xfe 0xff   big-endian utf-16 follows
-**
-*/
-/* #include "sqliteInt.h" */
-/* #include <assert.h> */
-/* #include "vdbeInt.h" */
-
-#if !defined(SQLITE_AMALGAMATION) && SQLITE_BYTEORDER==0
-/*
-** The following constant value is used by the SQLITE_BIGENDIAN and
-** SQLITE_LITTLEENDIAN macros.
-*/
-SQLITE_PRIVATE const int tdsqlite3one = 1;
-#endif /* SQLITE_AMALGAMATION && SQLITE_BYTEORDER==0 */
-
-/*
-** This lookup table is used to help decode the first byte of
-** a multi-byte UTF8 character.
-*/
-static const unsigned char tdsqlite3Utf8Trans1[] = {
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
-  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
-};
-
-
-#define WRITE_UTF8(zOut, c) {                          \
-  if( c<0x00080 ){                                     \
-    *zOut++ = (u8)(c&0xFF);                            \
-  }                                                    \
-  else if( c<0x00800 ){                                \
-    *zOut++ = 0xC0 + (u8)((c>>6)&0x1F);                \
-    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
-  }                                                    \
-  else if( c<0x10000 ){                                \
-    *zOut++ = 0xE0 + (u8)((c>>12)&0x0F);               \
-    *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);              \
-    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
-  }else{                                               \
-    *zOut++ = 0xF0 + (u8)((c>>18) & 0x07);             \
-    *zOut++ = 0x80 + (u8)((c>>12) & 0x3F);             \
-    *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);              \
-    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
-  }                                                    \
-}
-
-#define WRITE_UTF16LE(zOut, c) {                                    \
-  if( c<=0xFFFF ){                                                  \
-    *zOut++ = (u8)(c&0x00FF);                                       \
-    *zOut++ = (u8)((c>>8)&0x00FF);                                  \
-  }else{                                                            \
-    *zOut++ = (u8)(((c>>10)&0x003F) + (((c-0x10000)>>10)&0x00C0));  \
-    *zOut++ = (u8)(0x00D8 + (((c-0x10000)>>18)&0x03));              \
-    *zOut++ = (u8)(c&0x00FF);                                       \
-    *zOut++ = (u8)(0x00DC + ((c>>8)&0x03));                         \
-  }                                                                 \
-}
-
-#define WRITE_UTF16BE(zOut, c) {                                    \
-  if( c<=0xFFFF ){                                                  \
-    *zOut++ = (u8)((c>>8)&0x00FF);                                  \
-    *zOut++ = (u8)(c&0x00FF);                                       \
-  }else{                                                            \
-    *zOut++ = (u8)(0x00D8 + (((c-0x10000)>>18)&0x03));              \
-    *zOut++ = (u8)(((c>>10)&0x003F) + (((c-0x10000)>>10)&0x00C0));  \
-    *zOut++ = (u8)(0x00DC + ((c>>8)&0x03));                         \
-    *zOut++ = (u8)(c&0x00FF);                                       \
-  }                                                                 \
-}
-
-#define READ_UTF16LE(zIn, TERM, c){                                   \
-  c = (*zIn++);                                                       \
-  c += ((*zIn++)<<8);                                                 \
-  if( c>=0xD800 && c<0xE000 && TERM ){                                \
-    int c2 = (*zIn++);                                                \
-    c2 += ((*zIn++)<<8);                                              \
-    c = (c2&0x03FF) + ((c&0x003F)<<10) + (((c&0x03C0)+0x0040)<<10);   \
-  }                                                                   \
-}
-
-#define READ_UTF16BE(zIn, TERM, c){                                   \
-  c = ((*zIn++)<<8);                                                  \
-  c += (*zIn++);                                                      \
-  if( c>=0xD800 && c<0xE000 && TERM ){                                \
-    int c2 = ((*zIn++)<<8);                                           \
-    c2 += (*zIn++);                                                   \
-    c = (c2&0x03FF) + ((c&0x003F)<<10) + (((c&0x03C0)+0x0040)<<10);   \
-  }                                                                   \
-}
-
-/*
-** Translate a single UTF-8 character.  Return the unicode value.
-**
-** During translation, assume that the byte that zTerm points
-** is a 0x00.
-**
-** Write a pointer to the next unread byte back into *pzNext.
-**
-** Notes On Invalid UTF-8:
-**
-**  *  This routine never allows a 7-bit character (0x00 through 0x7f) to
-**     be encoded as a multi-byte character.  Any multi-byte character that
-**     attempts to encode a value between 0x00 and 0x7f is rendered as 0xfffd.
-**
-**  *  This routine never allows a UTF16 surrogate value to be encoded.
-**     If a multi-byte character attempts to encode a value between
-**     0xd800 and 0xe000 then it is rendered as 0xfffd.
-**
-**  *  Bytes in the range of 0x80 through 0xbf which occur as the first
-**     byte of a character are interpreted as single-byte characters
-**     and rendered as themselves even though they are technically
-**     invalid characters.
-**
-**  *  This routine accepts over-length UTF8 encodings
-**     for unicode values 0x80 and greater.  It does not change over-length
-**     encodings to 0xfffd as some systems recommend.
-*/
-#define READ_UTF8(zIn, zTerm, c)                           \
-  c = *(zIn++);                                            \
-  if( c>=0xc0 ){                                           \
-    c = tdsqlite3Utf8Trans1[c-0xc0];                         \
-    while( zIn!=zTerm && (*zIn & 0xc0)==0x80 ){            \
-      c = (c<<6) + (0x3f & *(zIn++));                      \
-    }                                                      \
-    if( c<0x80                                             \
-        || (c&0xFFFFF800)==0xD800                          \
-        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }        \
-  }
-SQLITE_PRIVATE u32 tdsqlite3Utf8Read(
-  const unsigned char **pz    /* Pointer to string from which to read char */
-){
-  unsigned int c;
-
-  /* Same as READ_UTF8() above but without the zTerm parameter.
-  ** For this routine, we assume the UTF8 string is always zero-terminated.
-  */
-  c = *((*pz)++);
-  if( c>=0xc0 ){
-    c = tdsqlite3Utf8Trans1[c-0xc0];
-    while( (*(*pz) & 0xc0)==0x80 ){
-      c = (c<<6) + (0x3f & *((*pz)++));
-    }
-    if( c<0x80
-        || (c&0xFFFFF800)==0xD800
-        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }
-  }
-  return c;
-}
-
-
-
-
-/*
-** If the TRANSLATE_TRACE macro is defined, the value of each Mem is
-** printed on stderr on the way into and out of tdsqlite3VdbeMemTranslate().
-*/ 
-/* #define TRANSLATE_TRACE 1 */
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** This routine transforms the internal text encoding used by pMem to
-** desiredEnc. It is an error if the string is already of the desired
-** encoding, or if *pMem does not contain a string value.
-*/
-SQLITE_PRIVATE SQLITE_NOINLINE int tdsqlite3VdbeMemTranslate(Mem *pMem, u8 desiredEnc){
-  tdsqlite3_int64 len;          /* Maximum length of output string in bytes */
-  unsigned char *zOut;        /* Output buffer */
-  unsigned char *zIn;         /* Input iterator */
-  unsigned char *zTerm;       /* End of input */
-  unsigned char *z;           /* Output iterator */
-  unsigned int c;
-
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( pMem->flags&MEM_Str );
-  assert( pMem->enc!=desiredEnc );
-  assert( pMem->enc!=0 );
-  assert( pMem->n>=0 );
-
-#if defined(TRANSLATE_TRACE) && defined(SQLITE_DEBUG)
-  {
-    StrAccum acc;
-    char zBuf[1000];
-    tdsqlite3StrAccumInit(&acc, 0, zBuf, sizeof(zBuf), 0);  
-    tdsqlite3VdbeMemPrettyPrint(pMem, &acc);
-    fprintf(stderr, "INPUT:  %s\n", tdsqlite3StrAccumFinish(&acc));
-  }
-#endif
-
-  /* If the translation is between UTF-16 little and big endian, then 
-  ** all that is required is to swap the byte order. This case is handled
-  ** differently from the others.
-  */
-  if( pMem->enc!=SQLITE_UTF8 && desiredEnc!=SQLITE_UTF8 ){
-    u8 temp;
-    int rc;
-    rc = tdsqlite3VdbeMemMakeWriteable(pMem);
-    if( rc!=SQLITE_OK ){
-      assert( rc==SQLITE_NOMEM );
-      return SQLITE_NOMEM_BKPT;
-    }
-    zIn = (u8*)pMem->z;
-    zTerm = &zIn[pMem->n&~1];
-    while( zIn<zTerm ){
-      temp = *zIn;
-      *zIn = *(zIn+1);
-      zIn++;
-      *zIn++ = temp;
-    }
-    pMem->enc = desiredEnc;
-    goto translate_out;
-  }
-
-  /* Set len to the maximum number of bytes required in the output buffer. */
-  if( desiredEnc==SQLITE_UTF8 ){
-    /* When converting from UTF-16, the maximum growth results from
-    ** translating a 2-byte character to a 4-byte UTF-8 character.
-    ** A single byte is required for the output string
-    ** nul-terminator.
-    */
-    pMem->n &= ~1;
-    len = 2 * (tdsqlite3_int64)pMem->n + 1;
-  }else{
-    /* When converting from UTF-8 to UTF-16 the maximum growth is caused
-    ** when a 1-byte UTF-8 character is translated into a 2-byte UTF-16
-    ** character. Two bytes are required in the output buffer for the
-    ** nul-terminator.
-    */
-    len = 2 * (tdsqlite3_int64)pMem->n + 2;
-  }
-
-  /* Set zIn to point at the start of the input buffer and zTerm to point 1
-  ** byte past the end.
-  **
-  ** Variable zOut is set to point at the output buffer, space obtained
-  ** from tdsqlite3_malloc().
-  */
-  zIn = (u8*)pMem->z;
-  zTerm = &zIn[pMem->n];
-  zOut = tdsqlite3DbMallocRaw(pMem->db, len);
-  if( !zOut ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  z = zOut;
-
-  if( pMem->enc==SQLITE_UTF8 ){
-    if( desiredEnc==SQLITE_UTF16LE ){
-      /* UTF-8 -> UTF-16 Little-endian */
-      while( zIn<zTerm ){
-        READ_UTF8(zIn, zTerm, c);
-        WRITE_UTF16LE(z, c);
-      }
-    }else{
-      assert( desiredEnc==SQLITE_UTF16BE );
-      /* UTF-8 -> UTF-16 Big-endian */
-      while( zIn<zTerm ){
-        READ_UTF8(zIn, zTerm, c);
-        WRITE_UTF16BE(z, c);
-      }
-    }
-    pMem->n = (int)(z - zOut);
-    *z++ = 0;
-  }else{
-    assert( desiredEnc==SQLITE_UTF8 );
-    if( pMem->enc==SQLITE_UTF16LE ){
-      /* UTF-16 Little-endian -> UTF-8 */
-      while( zIn<zTerm ){
-        READ_UTF16LE(zIn, zIn<zTerm, c); 
-        WRITE_UTF8(z, c);
-      }
-    }else{
-      /* UTF-16 Big-endian -> UTF-8 */
-      while( zIn<zTerm ){
-        READ_UTF16BE(zIn, zIn<zTerm, c); 
-        WRITE_UTF8(z, c);
-      }
-    }
-    pMem->n = (int)(z - zOut);
-  }
-  *z = 0;
-  assert( (pMem->n+(desiredEnc==SQLITE_UTF8?1:2))<=len );
-
-  c = pMem->flags;
-  tdsqlite3VdbeMemRelease(pMem);
-  pMem->flags = MEM_Str|MEM_Term|(c&(MEM_AffMask|MEM_Subtype));
-  pMem->enc = desiredEnc;
-  pMem->z = (char*)zOut;
-  pMem->zMalloc = pMem->z;
-  pMem->szMalloc = tdsqlite3DbMallocSize(pMem->db, pMem->z);
-
-translate_out:
-#if defined(TRANSLATE_TRACE) && defined(SQLITE_DEBUG)
-  {
-    StrAccum acc;
-    char zBuf[1000];
-    tdsqlite3StrAccumInit(&acc, 0, zBuf, sizeof(zBuf), 0);  
-    tdsqlite3VdbeMemPrettyPrint(pMem, &acc);
-    fprintf(stderr, "OUTPUT: %s\n", tdsqlite3StrAccumFinish(&acc));
-  }
-#endif
-  return SQLITE_OK;
-}
-#endif /* SQLITE_OMIT_UTF16 */
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** This routine checks for a byte-order mark at the beginning of the 
-** UTF-16 string stored in *pMem. If one is present, it is removed and
-** the encoding of the Mem adjusted. This routine does not do any
-** byte-swapping, it just sets Mem.enc appropriately.
-**
-** The allocation (static, dynamic etc.) and encoding of the Mem may be
-** changed by this function.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemHandleBom(Mem *pMem){
-  int rc = SQLITE_OK;
-  u8 bom = 0;
-
-  assert( pMem->n>=0 );
-  if( pMem->n>1 ){
-    u8 b1 = *(u8 *)pMem->z;
-    u8 b2 = *(((u8 *)pMem->z) + 1);
-    if( b1==0xFE && b2==0xFF ){
-      bom = SQLITE_UTF16BE;
-    }
-    if( b1==0xFF && b2==0xFE ){
-      bom = SQLITE_UTF16LE;
-    }
-  }
-  
-  if( bom ){
-    rc = tdsqlite3VdbeMemMakeWriteable(pMem);
-    if( rc==SQLITE_OK ){
-      pMem->n -= 2;
-      memmove(pMem->z, &pMem->z[2], pMem->n);
-      pMem->z[pMem->n] = '\0';
-      pMem->z[pMem->n+1] = '\0';
-      pMem->flags |= MEM_Term;
-      pMem->enc = bom;
-    }
-  }
-  return rc;
-}
-#endif /* SQLITE_OMIT_UTF16 */
-
-/*
-** pZ is a UTF-8 encoded unicode string. If nByte is less than zero,
-** return the number of unicode characters in pZ up to (but not including)
-** the first 0x00 byte. If nByte is not less than zero, return the
-** number of unicode characters in the first nByte of pZ (or up to 
-** the first 0x00, whichever comes first).
-*/
-SQLITE_PRIVATE int tdsqlite3Utf8CharLen(const char *zIn, int nByte){
-  int r = 0;
-  const u8 *z = (const u8*)zIn;
-  const u8 *zTerm;
-  if( nByte>=0 ){
-    zTerm = &z[nByte];
-  }else{
-    zTerm = (const u8*)(-1);
-  }
-  assert( z<=zTerm );
-  while( *z!=0 && z<zTerm ){
-    SQLITE_SKIP_UTF8(z);
-    r++;
-  }
-  return r;
-}
-
-/* This test function is not currently used by the automated test-suite. 
-** Hence it is only available in debug builds.
-*/
-#if defined(SQLITE_TEST) && defined(SQLITE_DEBUG)
-/*
-** Translate UTF-8 to UTF-8.
-**
-** This has the effect of making sure that the string is well-formed
-** UTF-8.  Miscoded characters are removed.
-**
-** The translation is done in-place and aborted if the output
-** overruns the input.
-*/
-SQLITE_PRIVATE int tdsqlite3Utf8To8(unsigned char *zIn){
-  unsigned char *zOut = zIn;
-  unsigned char *zStart = zIn;
-  u32 c;
-
-  while( zIn[0] && zOut<=zIn ){
-    c = tdsqlite3Utf8Read((const u8**)&zIn);
-    if( c!=0xfffd ){
-      WRITE_UTF8(zOut, c);
-    }
-  }
-  *zOut = 0;
-  return (int)(zOut - zStart);
-}
-#endif
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** Convert a UTF-16 string in the native encoding into a UTF-8 string.
-** Memory to hold the UTF-8 string is obtained from tdsqlite3_malloc and must
-** be freed by the calling function.
-**
-** NULL is returned if there is an allocation error.
-*/
-SQLITE_PRIVATE char *tdsqlite3Utf16to8(tdsqlite3 *db, const void *z, int nByte, u8 enc){
-  Mem m;
-  memset(&m, 0, sizeof(m));
-  m.db = db;
-  tdsqlite3VdbeMemSetStr(&m, z, nByte, enc, SQLITE_STATIC);
-  tdsqlite3VdbeChangeEncoding(&m, SQLITE_UTF8);
-  if( db->mallocFailed ){
-    tdsqlite3VdbeMemRelease(&m);
-    m.z = 0;
-  }
-  assert( (m.flags & MEM_Term)!=0 || db->mallocFailed );
-  assert( (m.flags & MEM_Str)!=0 || db->mallocFailed );
-  assert( m.z || db->mallocFailed );
-  return m.z;
-}
-
-/*
-** zIn is a UTF-16 encoded unicode string at least nChar characters long.
-** Return the number of bytes in the first nChar unicode characters
-** in pZ.  nChar must be non-negative.
-*/
-SQLITE_PRIVATE int tdsqlite3Utf16ByteLen(const void *zIn, int nChar){
-  int c;
-  unsigned char const *z = zIn;
-  int n = 0;
-  
-  if( SQLITE_UTF16NATIVE==SQLITE_UTF16BE ){
-    while( n<nChar ){
-      READ_UTF16BE(z, 1, c);
-      n++;
-    }
-  }else{
-    while( n<nChar ){
-      READ_UTF16LE(z, 1, c);
-      n++;
-    }
-  }
-  return (int)(z-(unsigned char const *)zIn);
-}
-
-#if defined(SQLITE_TEST)
-/*
-** This routine is called from the TCL test function "translate_selftest".
-** It checks that the primitives for serializing and deserializing
-** characters in each encoding are inverses of each other.
-*/
-SQLITE_PRIVATE void tdsqlite3UtfSelfTest(void){
-  unsigned int i, t;
-  unsigned char zBuf[20];
-  unsigned char *z;
-  int n;
-  unsigned int c;
-
-  for(i=0; i<0x00110000; i++){
-    z = zBuf;
-    WRITE_UTF8(z, i);
-    n = (int)(z-zBuf);
-    assert( n>0 && n<=4 );
-    z[0] = 0;
-    z = zBuf;
-    c = tdsqlite3Utf8Read((const u8**)&z);
-    t = i;
-    if( i>=0xD800 && i<=0xDFFF ) t = 0xFFFD;
-    if( (i&0xFFFFFFFE)==0xFFFE ) t = 0xFFFD;
-    assert( c==t );
-    assert( (z-zBuf)==n );
-  }
-  for(i=0; i<0x00110000; i++){
-    if( i>=0xD800 && i<0xE000 ) continue;
-    z = zBuf;
-    WRITE_UTF16LE(z, i);
-    n = (int)(z-zBuf);
-    assert( n>0 && n<=4 );
-    z[0] = 0;
-    z = zBuf;
-    READ_UTF16LE(z, 1, c);
-    assert( c==i );
-    assert( (z-zBuf)==n );
-  }
-  for(i=0; i<0x00110000; i++){
-    if( i>=0xD800 && i<0xE000 ) continue;
-    z = zBuf;
-    WRITE_UTF16BE(z, i);
-    n = (int)(z-zBuf);
-    assert( n>0 && n<=4 );
-    z[0] = 0;
-    z = zBuf;
-    READ_UTF16BE(z, 1, c);
-    assert( c==i );
-    assert( (z-zBuf)==n );
-  }
-}
-#endif /* SQLITE_TEST */
-#endif /* SQLITE_OMIT_UTF16 */
-
-/************** End of utf.c *************************************************/
-/************** Begin file util.c ********************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Utility functions used throughout sqlite.
-**
-** This file contains functions for allocating memory, comparing
-** strings, and stuff like that.
-**
-*/
-/* #include "sqliteInt.h" */
-/* #include <stdarg.h> */
-#ifndef SQLITE_OMIT_FLOATING_POINT
-#include <math.h>
-#endif
-
-/*
-** Routine needed to support the testcase() macro.
-*/
-#ifdef SQLITE_COVERAGE_TEST
-SQLITE_PRIVATE void tdsqlite3Coverage(int x){
-  static unsigned dummy = 0;
-  dummy += (unsigned)x;
-}
-#endif
-
-/*
-** Calls to tdsqlite3FaultSim() are used to simulate a failure during testing,
-** or to bypass normal error detection during testing in order to let 
-** execute proceed futher downstream.
-**
-** In deployment, tdsqlite3FaultSim() *always* return SQLITE_OK (0).  The
-** tdsqlite3FaultSim() function only returns non-zero during testing.
-**
-** During testing, if the test harness has set a fault-sim callback using
-** a call to tdsqlite3_test_control(SQLITE_TESTCTRL_FAULT_INSTALL), then
-** each call to tdsqlite3FaultSim() is relayed to that application-supplied
-** callback and the integer return value form the application-supplied
-** callback is returned by tdsqlite3FaultSim().
-**
-** The integer argument to tdsqlite3FaultSim() is a code to identify which
-** tdsqlite3FaultSim() instance is being invoked. Each call to tdsqlite3FaultSim()
-** should have a unique code.  To prevent legacy testing applications from
-** breaking, the codes should not be changed or reused.
-*/
-#ifndef SQLITE_UNTESTABLE
-SQLITE_PRIVATE int tdsqlite3FaultSim(int iTest){
-  int (*xCallback)(int) = tdsqlite3GlobalConfig.xTestCallback;
-  return xCallback ? xCallback(iTest) : SQLITE_OK;
-}
-#endif
-
-#ifndef SQLITE_OMIT_FLOATING_POINT
-/*
-** Return true if the floating point value is Not a Number (NaN).
-*/
-SQLITE_PRIVATE int tdsqlite3IsNaN(double x){
-  u64 y;
-  memcpy(&y,&x,sizeof(y));
-  return IsNaN(y);
-}
-#endif /* SQLITE_OMIT_FLOATING_POINT */
-
-/*
-** Compute a string length that is limited to what can be stored in
-** lower 30 bits of a 32-bit signed integer.
-**
-** The value returned will never be negative.  Nor will it ever be greater
-** than the actual length of the string.  For very long strings (greater
-** than 1GiB) the value returned might be less than the true string length.
-*/
-SQLITE_PRIVATE int tdsqlite3Strlen30(const char *z){
-  if( z==0 ) return 0;
-  return 0x3fffffff & (int)strlen(z);
-}
-
-/*
-** Return the declared type of a column.  Or return zDflt if the column 
-** has no declared type.
-**
-** The column type is an extra string stored after the zero-terminator on
-** the column name if and only if the COLFLAG_HASTYPE flag is set.
-*/
-SQLITE_PRIVATE char *tdsqlite3ColumnType(Column *pCol, char *zDflt){
-  if( (pCol->colFlags & COLFLAG_HASTYPE)==0 ) return zDflt;
-  return pCol->zName + strlen(pCol->zName) + 1;
-}
-
-/*
-** Helper function for tdsqlite3Error() - called rarely.  Broken out into
-** a separate routine to avoid unnecessary register saves on entry to
-** tdsqlite3Error().
-*/
-static SQLITE_NOINLINE void  tdsqlite3ErrorFinish(tdsqlite3 *db, int err_code){
-  if( db->pErr ) tdsqlite3ValueSetNull(db->pErr);
-  tdsqlite3SystemError(db, err_code);
-}
-
-/*
-** Set the current error code to err_code and clear any prior error message.
-** Also set iSysErrno (by calling tdsqlite3System) if the err_code indicates
-** that would be appropriate.
-*/
-SQLITE_PRIVATE void tdsqlite3Error(tdsqlite3 *db, int err_code){
-  assert( db!=0 );
-  db->errCode = err_code;
-  if( err_code || db->pErr ) tdsqlite3ErrorFinish(db, err_code);
-}
-
-/*
-** Load the sqlite3.iSysErrno field if that is an appropriate thing
-** to do based on the SQLite error code in rc.
-*/
-SQLITE_PRIVATE void tdsqlite3SystemError(tdsqlite3 *db, int rc){
-  if( rc==SQLITE_IOERR_NOMEM ) return;
-  rc &= 0xff;
-  if( rc==SQLITE_CANTOPEN || rc==SQLITE_IOERR ){
-    db->iSysErrno = tdsqlite3OsGetLastError(db->pVfs);
-  }
-}
-
-/*
-** Set the most recent error code and error string for the sqlite
-** handle "db". The error code is set to "err_code".
-**
-** If it is not NULL, string zFormat specifies the format of the
-** error string in the style of the printf functions: The following
-** format characters are allowed:
-**
-**      %s      Insert a string
-**      %z      A string that should be freed after use
-**      %d      Insert an integer
-**      %T      Insert a token
-**      %S      Insert the first element of a SrcList
-**
-** zFormat and any string tokens that follow it are assumed to be
-** encoded in UTF-8.
-**
-** To clear the most recent error for sqlite handle "db", tdsqlite3Error
-** should be called with err_code set to SQLITE_OK and zFormat set
-** to NULL.
-*/
-SQLITE_PRIVATE void tdsqlite3ErrorWithMsg(tdsqlite3 *db, int err_code, const char *zFormat, ...){
-  assert( db!=0 );
-  db->errCode = err_code;
-  tdsqlite3SystemError(db, err_code);
-  if( zFormat==0 ){
-    tdsqlite3Error(db, err_code);
-  }else if( db->pErr || (db->pErr = tdsqlite3ValueNew(db))!=0 ){
-    char *z;
-    va_list ap;
-    va_start(ap, zFormat);
-    z = tdsqlite3VMPrintf(db, zFormat, ap);
-    va_end(ap);
-    tdsqlite3ValueSetStr(db->pErr, -1, z, SQLITE_UTF8, SQLITE_DYNAMIC);
-  }
-}
-
-/*
-** Add an error message to pParse->zErrMsg and increment pParse->nErr.
-** The following formatting characters are allowed:
-**
-**      %s      Insert a string
-**      %z      A string that should be freed after use
-**      %d      Insert an integer
-**      %T      Insert a token
-**      %S      Insert the first element of a SrcList
-**
-** This function should be used to report any error that occurs while
-** compiling an SQL statement (i.e. within tdsqlite3_prepare()). The
-** last thing the tdsqlite3_prepare() function does is copy the error
-** stored by this function into the database handle using tdsqlite3Error().
-** Functions tdsqlite3Error() or tdsqlite3ErrorWithMsg() should be used
-** during statement execution (tdsqlite3_step() etc.).
-*/
-SQLITE_PRIVATE void tdsqlite3ErrorMsg(Parse *pParse, const char *zFormat, ...){
-  char *zMsg;
-  va_list ap;
-  tdsqlite3 *db = pParse->db;
-  va_start(ap, zFormat);
-  zMsg = tdsqlite3VMPrintf(db, zFormat, ap);
-  va_end(ap);
-  if( db->suppressErr ){
-    tdsqlite3DbFree(db, zMsg);
-  }else{
-    pParse->nErr++;
-    tdsqlite3DbFree(db, pParse->zErrMsg);
-    pParse->zErrMsg = zMsg;
-    pParse->rc = SQLITE_ERROR;
-    pParse->pWith = 0;
-  }
-}
-
-/*
-** If database connection db is currently parsing SQL, then transfer
-** error code errCode to that parser if the parser has not already
-** encountered some other kind of error.
-*/
-SQLITE_PRIVATE int tdsqlite3ErrorToParser(tdsqlite3 *db, int errCode){
-  Parse *pParse;
-  if( db==0 || (pParse = db->pParse)==0 ) return errCode;
-  pParse->rc = errCode;
-  pParse->nErr++;
-  return errCode;
-}
-
-/*
-** Convert an SQL-style quoted string into a normal string by removing
-** the quote characters.  The conversion is done in-place.  If the
-** input does not begin with a quote character, then this routine
-** is a no-op.
-**
-** The input string must be zero-terminated.  A new zero-terminator
-** is added to the dequoted string.
-**
-** The return value is -1 if no dequoting occurs or the length of the
-** dequoted string, exclusive of the zero terminator, if dequoting does
-** occur.
-**
-** 2002-02-14: This routine is extended to remove MS-Access style
-** brackets from around identifiers.  For example:  "[a-b-c]" becomes
-** "a-b-c".
-*/
-SQLITE_PRIVATE void tdsqlite3Dequote(char *z){
-  char quote;
-  int i, j;
-  if( z==0 ) return;
-  quote = z[0];
-  if( !tdsqlite3Isquote(quote) ) return;
-  if( quote=='[' ) quote = ']';
-  for(i=1, j=0;; i++){
-    assert( z[i] );
-    if( z[i]==quote ){
-      if( z[i+1]==quote ){
-        z[j++] = quote;
-        i++;
-      }else{
-        break;
-      }
-    }else{
-      z[j++] = z[i];
-    }
-  }
-  z[j] = 0;
-}
-SQLITE_PRIVATE void tdsqlite3DequoteExpr(Expr *p){
-  assert( tdsqlite3Isquote(p->u.zToken[0]) );
-  p->flags |= p->u.zToken[0]=='"' ? EP_Quoted|EP_DblQuoted : EP_Quoted;
-  tdsqlite3Dequote(p->u.zToken);
-}
-
-/*
-** Generate a Token object from a string
-*/
-SQLITE_PRIVATE void tdsqlite3TokenInit(Token *p, char *z){
-  p->z = z;
-  p->n = tdsqlite3Strlen30(z);
-}
-
-/* Convenient short-hand */
-#define UpperToLower tdsqlite3UpperToLower
-
-/*
-** Some systems have stricmp().  Others have strcasecmp().  Because
-** there is no consistency, we will define our own.
-**
-** IMPLEMENTATION-OF: R-30243-02494 The tdsqlite3_stricmp() and
-** tdsqlite3_strnicmp() APIs allow applications and extensions to compare
-** the contents of two buffers containing UTF-8 strings in a
-** case-independent fashion, using the same definition of "case
-** independence" that SQLite uses internally when comparing identifiers.
-*/
-SQLITE_API int tdsqlite3_stricmp(const char *zLeft, const char *zRight){
-  if( zLeft==0 ){
-    return zRight ? -1 : 0;
-  }else if( zRight==0 ){
-    return 1;
-  }
-  return tdsqlite3StrICmp(zLeft, zRight);
-}
-SQLITE_PRIVATE int tdsqlite3StrICmp(const char *zLeft, const char *zRight){
-  unsigned char *a, *b;
-  int c, x;
-  a = (unsigned char *)zLeft;
-  b = (unsigned char *)zRight;
-  for(;;){
-    c = *a;
-    x = *b;
-    if( c==x ){
-      if( c==0 ) break;
-    }else{
-      c = (int)UpperToLower[c] - (int)UpperToLower[x];
-      if( c ) break;
-    }
-    a++;
-    b++;
-  }
-  return c;
-}
-SQLITE_API int tdsqlite3_strnicmp(const char *zLeft, const char *zRight, int N){
-  register unsigned char *a, *b;
-  if( zLeft==0 ){
-    return zRight ? -1 : 0;
-  }else if( zRight==0 ){
-    return 1;
-  }
-  a = (unsigned char *)zLeft;
-  b = (unsigned char *)zRight;
-  while( N-- > 0 && *a!=0 && UpperToLower[*a]==UpperToLower[*b]){ a++; b++; }
-  return N<0 ? 0 : UpperToLower[*a] - UpperToLower[*b];
-}
-
-/*
-** Compute 10 to the E-th power.  Examples:  E==1 results in 10.
-** E==2 results in 100.  E==50 results in 1.0e50.
-**
-** This routine only works for values of E between 1 and 341.
-*/
-static LONGDOUBLE_TYPE tdsqlite3Pow10(int E){
-#if defined(_MSC_VER)
-  static const LONGDOUBLE_TYPE x[] = {
-    1.0e+001L,
-    1.0e+002L,
-    1.0e+004L,
-    1.0e+008L,
-    1.0e+016L,
-    1.0e+032L,
-    1.0e+064L,
-    1.0e+128L,
-    1.0e+256L
-  };
-  LONGDOUBLE_TYPE r = 1.0;
-  int i;
-  assert( E>=0 && E<=307 );
-  for(i=0; E!=0; i++, E >>=1){
-    if( E & 1 ) r *= x[i];
-  }
-  return r;
-#else
-  LONGDOUBLE_TYPE x = 10.0;
-  LONGDOUBLE_TYPE r = 1.0;
-  while(1){
-    if( E & 1 ) r *= x;
-    E >>= 1;
-    if( E==0 ) break;
-    x *= x;
-  }
-  return r; 
-#endif
-}
-
-/*
-** The string z[] is an text representation of a real number.
-** Convert this string to a double and write it into *pResult.
-**
-** The string z[] is length bytes in length (bytes, not characters) and
-** uses the encoding enc.  The string is not necessarily zero-terminated.
-**
-** Return TRUE if the result is a valid real number (or integer) and FALSE
-** if the string is empty or contains extraneous text.  More specifically
-** return
-**      1          =>  The input string is a pure integer
-**      2 or more  =>  The input has a decimal point or eNNN clause
-**      0 or less  =>  The input string is not a valid number
-**     -1          =>  Not a valid number, but has a valid prefix which 
-**                     includes a decimal point and/or an eNNN clause
-**
-** Valid numbers are in one of these formats:
-**
-**    [+-]digits[E[+-]digits]
-**    [+-]digits.[digits][E[+-]digits]
-**    [+-].digits[E[+-]digits]
-**
-** Leading and trailing whitespace is ignored for the purpose of determining
-** validity.
-**
-** If some prefix of the input string is a valid number, this routine
-** returns FALSE but it still converts the prefix and writes the result
-** into *pResult.
-*/
-#if defined(_MSC_VER)
-#pragma warning(disable : 4756)
-#endif
-SQLITE_PRIVATE int tdsqlite3AtoF(const char *z, double *pResult, int length, u8 enc){
-#ifndef SQLITE_OMIT_FLOATING_POINT
-  int incr;
-  const char *zEnd;
-  /* sign * significand * (10 ^ (esign * exponent)) */
-  int sign = 1;    /* sign of significand */
-  i64 s = 0;       /* significand */
-  int d = 0;       /* adjust exponent for shifting decimal point */
-  int esign = 1;   /* sign of exponent */
-  int e = 0;       /* exponent */
-  int eValid = 1;  /* True exponent is either not used or is well-formed */
-  double result;
-  int nDigit = 0;  /* Number of digits processed */
-  int eType = 1;   /* 1: pure integer,  2+: fractional  -1 or less: bad UTF16 */
-
-  assert( enc==SQLITE_UTF8 || enc==SQLITE_UTF16LE || enc==SQLITE_UTF16BE );
-  *pResult = 0.0;   /* Default return value, in case of an error */
-  if( length==0 ) return 0;
-
-  if( enc==SQLITE_UTF8 ){
-    incr = 1;
-    zEnd = z + length;
-  }else{
-    int i;
-    incr = 2;
-    length &= ~1;
-    assert( SQLITE_UTF16LE==2 && SQLITE_UTF16BE==3 );
-    testcase( enc==SQLITE_UTF16LE );
-    testcase( enc==SQLITE_UTF16BE );
-    for(i=3-enc; i<length && z[i]==0; i+=2){}
-    if( i<length ) eType = -100;
-    zEnd = &z[i^1];
-    z += (enc&1);
-  }
-
-  /* skip leading spaces */
-  while( z<zEnd && tdsqlite3Isspace(*z) ) z+=incr;
-  if( z>=zEnd ) return 0;
-
-  /* get sign of significand */
-  if( *z=='-' ){
-    sign = -1;
-    z+=incr;
-  }else if( *z=='+' ){
-    z+=incr;
-  }
-
-  /* copy max significant digits to significand */
-  while( z<zEnd && tdsqlite3Isdigit(*z) ){
-    s = s*10 + (*z - '0');
-    z+=incr; nDigit++;
-    if( s>=((LARGEST_INT64-9)/10) ){
-      /* skip non-significant significand digits
-      ** (increase exponent by d to shift decimal left) */
-      while( z<zEnd && tdsqlite3Isdigit(*z) ){ z+=incr; d++; }
-    }
-  }
-  if( z>=zEnd ) goto do_atof_calc;
-
-  /* if decimal point is present */
-  if( *z=='.' ){
-    z+=incr;
-    eType++;
-    /* copy digits from after decimal to significand
-    ** (decrease exponent by d to shift decimal right) */
-    while( z<zEnd && tdsqlite3Isdigit(*z) ){
-      if( s<((LARGEST_INT64-9)/10) ){
-        s = s*10 + (*z - '0');
-        d--;
-        nDigit++;
-      }
-      z+=incr;
-    }
-  }
-  if( z>=zEnd ) goto do_atof_calc;
-
-  /* if exponent is present */
-  if( *z=='e' || *z=='E' ){
-    z+=incr;
-    eValid = 0;
-    eType++;
-
-    /* This branch is needed to avoid a (harmless) buffer overread.  The 
-    ** special comment alerts the mutation tester that the correct answer
-    ** is obtained even if the branch is omitted */
-    if( z>=zEnd ) goto do_atof_calc;              /*PREVENTS-HARMLESS-OVERREAD*/
-
-    /* get sign of exponent */
-    if( *z=='-' ){
-      esign = -1;
-      z+=incr;
-    }else if( *z=='+' ){
-      z+=incr;
-    }
-    /* copy digits to exponent */
-    while( z<zEnd && tdsqlite3Isdigit(*z) ){
-      e = e<10000 ? (e*10 + (*z - '0')) : 10000;
-      z+=incr;
-      eValid = 1;
-    }
-  }
-
-  /* skip trailing spaces */
-  while( z<zEnd && tdsqlite3Isspace(*z) ) z+=incr;
-
-do_atof_calc:
-  /* adjust exponent by d, and update sign */
-  e = (e*esign) + d;
-  if( e<0 ) {
-    esign = -1;
-    e *= -1;
-  } else {
-    esign = 1;
-  }
-
-  if( s==0 ) {
-    /* In the IEEE 754 standard, zero is signed. */
-    result = sign<0 ? -(double)0 : (double)0;
-  } else {
-    /* Attempt to reduce exponent.
-    **
-    ** Branches that are not required for the correct answer but which only
-    ** help to obtain the correct answer faster are marked with special
-    ** comments, as a hint to the mutation tester.
-    */
-    while( e>0 ){                                       /*OPTIMIZATION-IF-TRUE*/
-      if( esign>0 ){
-        if( s>=(LARGEST_INT64/10) ) break;             /*OPTIMIZATION-IF-FALSE*/
-        s *= 10;
-      }else{
-        if( s%10!=0 ) break;                           /*OPTIMIZATION-IF-FALSE*/
-        s /= 10;
-      }
-      e--;
-    }
-
-    /* adjust the sign of significand */
-    s = sign<0 ? -s : s;
-
-    if( e==0 ){                                         /*OPTIMIZATION-IF-TRUE*/
-      result = (double)s;
-    }else{
-      /* attempt to handle extremely small/large numbers better */
-      if( e>307 ){                                      /*OPTIMIZATION-IF-TRUE*/
-        if( e<342 ){                                    /*OPTIMIZATION-IF-TRUE*/
-          LONGDOUBLE_TYPE scale = tdsqlite3Pow10(e-308);
-          if( esign<0 ){
-            result = s / scale;
-            result /= 1.0e+308;
-          }else{
-            result = s * scale;
-            result *= 1.0e+308;
-          }
-        }else{ assert( e>=342 );
-          if( esign<0 ){
-            result = 0.0*s;
-          }else{
-#ifdef INFINITY
-            result = INFINITY*s;
-#else
-            result = 1e308*1e308*s;  /* Infinity */
-#endif
-          }
-        }
-      }else{
-        LONGDOUBLE_TYPE scale = tdsqlite3Pow10(e);
-        if( esign<0 ){
-          result = s / scale;
-        }else{
-          result = s * scale;
-        }
-      }
-    }
-  }
-
-  /* store the result */
-  *pResult = result;
-
-  /* return true if number and no extra non-whitespace chracters after */
-  if( z==zEnd && nDigit>0 && eValid && eType>0 ){
-    return eType;
-  }else if( eType>=2 && (eType==3 || eValid) && nDigit>0 ){
-    return -1;
-  }else{
-    return 0;
-  }
-#else
-  return !tdsqlite3Atoi64(z, pResult, length, enc);
-#endif /* SQLITE_OMIT_FLOATING_POINT */
-}
-#if defined(_MSC_VER)
-#pragma warning(default : 4756)
-#endif
-
-/*
-** Compare the 19-character string zNum against the text representation
-** value 2^63:  9223372036854775808.  Return negative, zero, or positive
-** if zNum is less than, equal to, or greater than the string.
-** Note that zNum must contain exactly 19 characters.
-**
-** Unlike memcmp() this routine is guaranteed to return the difference
-** in the values of the last digit if the only difference is in the
-** last digit.  So, for example,
-**
-**      compare2pow63("9223372036854775800", 1)
-**
-** will return -8.
-*/
-static int compare2pow63(const char *zNum, int incr){
-  int c = 0;
-  int i;
-                    /* 012345678901234567 */
-  const char *pow63 = "922337203685477580";
-  for(i=0; c==0 && i<18; i++){
-    c = (zNum[i*incr]-pow63[i])*10;
-  }
-  if( c==0 ){
-    c = zNum[18*incr] - '8';
-    testcase( c==(-1) );
-    testcase( c==0 );
-    testcase( c==(+1) );
-  }
-  return c;
-}
-
-/*
-** Convert zNum to a 64-bit signed integer.  zNum must be decimal. This
-** routine does *not* accept hexadecimal notation.
-**
-** Returns:
-**
-**    -1    Not even a prefix of the input text looks like an integer
-**     0    Successful transformation.  Fits in a 64-bit signed integer.
-**     1    Excess non-space text after the integer value
-**     2    Integer too large for a 64-bit signed integer or is malformed
-**     3    Special case of 9223372036854775808
-**
-** length is the number of bytes in the string (bytes, not characters).
-** The string is not necessarily zero-terminated.  The encoding is
-** given by enc.
-*/
-SQLITE_PRIVATE int tdsqlite3Atoi64(const char *zNum, i64 *pNum, int length, u8 enc){
-  int incr;
-  u64 u = 0;
-  int neg = 0; /* assume positive */
-  int i;
-  int c = 0;
-  int nonNum = 0;  /* True if input contains UTF16 with high byte non-zero */
-  int rc;          /* Baseline return code */
-  const char *zStart;
-  const char *zEnd = zNum + length;
-  assert( enc==SQLITE_UTF8 || enc==SQLITE_UTF16LE || enc==SQLITE_UTF16BE );
-  if( enc==SQLITE_UTF8 ){
-    incr = 1;
-  }else{
-    incr = 2;
-    assert( SQLITE_UTF16LE==2 && SQLITE_UTF16BE==3 );
-    for(i=3-enc; i<length && zNum[i]==0; i+=2){}
-    nonNum = i<length;
-    zEnd = &zNum[i^1];
-    zNum += (enc&1);
-  }
-  while( zNum<zEnd && tdsqlite3Isspace(*zNum) ) zNum+=incr;
-  if( zNum<zEnd ){
-    if( *zNum=='-' ){
-      neg = 1;
-      zNum+=incr;
-    }else if( *zNum=='+' ){
-      zNum+=incr;
-    }
-  }
-  zStart = zNum;
-  while( zNum<zEnd && zNum[0]=='0' ){ zNum+=incr; } /* Skip leading zeros. */
-  for(i=0; &zNum[i]<zEnd && (c=zNum[i])>='0' && c<='9'; i+=incr){
-    u = u*10 + c - '0';
-  }
-  testcase( i==18*incr );
-  testcase( i==19*incr );
-  testcase( i==20*incr );
-  if( u>LARGEST_INT64 ){
-    /* This test and assignment is needed only to suppress UB warnings
-    ** from clang and -fsanitize=undefined.  This test and assignment make
-    ** the code a little larger and slower, and no harm comes from omitting
-    ** them, but we must appaise the undefined-behavior pharisees. */
-    *pNum = neg ? SMALLEST_INT64 : LARGEST_INT64;
-  }else if( neg ){
-    *pNum = -(i64)u;
-  }else{
-    *pNum = (i64)u;
-  }
-  rc = 0;
-  if( i==0 && zStart==zNum ){    /* No digits */
-    rc = -1;
-  }else if( nonNum ){            /* UTF16 with high-order bytes non-zero */
-    rc = 1;
-  }else if( &zNum[i]<zEnd ){     /* Extra bytes at the end */
-    int jj = i;
-    do{
-      if( !tdsqlite3Isspace(zNum[jj]) ){
-        rc = 1;          /* Extra non-space text after the integer */
-        break;
-      }
-      jj += incr;
-    }while( &zNum[jj]<zEnd );
-  }
-  if( i<19*incr ){
-    /* Less than 19 digits, so we know that it fits in 64 bits */
-    assert( u<=LARGEST_INT64 );
-    return rc;
-  }else{
-    /* zNum is a 19-digit numbers.  Compare it against 9223372036854775808. */
-    c = i>19*incr ? 1 : compare2pow63(zNum, incr);
-    if( c<0 ){
-      /* zNum is less than 9223372036854775808 so it fits */
-      assert( u<=LARGEST_INT64 );
-      return rc;
-    }else{
-      *pNum = neg ? SMALLEST_INT64 : LARGEST_INT64;
-      if( c>0 ){
-        /* zNum is greater than 9223372036854775808 so it overflows */
-        return 2;
-      }else{
-        /* zNum is exactly 9223372036854775808.  Fits if negative.  The
-        ** special case 2 overflow if positive */
-        assert( u-1==LARGEST_INT64 );
-        return neg ? rc : 3;
-      }
-    }
-  }
-}
-
-/*
-** Transform a UTF-8 integer literal, in either decimal or hexadecimal,
-** into a 64-bit signed integer.  This routine accepts hexadecimal literals,
-** whereas tdsqlite3Atoi64() does not.
-**
-** Returns:
-**
-**     0    Successful transformation.  Fits in a 64-bit signed integer.
-**     1    Excess text after the integer value
-**     2    Integer too large for a 64-bit signed integer or is malformed
-**     3    Special case of 9223372036854775808
-*/
-SQLITE_PRIVATE int tdsqlite3DecOrHexToI64(const char *z, i64 *pOut){
-#ifndef SQLITE_OMIT_HEX_INTEGER
-  if( z[0]=='0'
-   && (z[1]=='x' || z[1]=='X')
-  ){
-    u64 u = 0;
-    int i, k;
-    for(i=2; z[i]=='0'; i++){}
-    for(k=i; tdsqlite3Isxdigit(z[k]); k++){
-      u = u*16 + tdsqlite3HexToInt(z[k]);
-    }
-    memcpy(pOut, &u, 8);
-    return (z[k]==0 && k-i<=16) ? 0 : 2;
-  }else
-#endif /* SQLITE_OMIT_HEX_INTEGER */
-  {
-    return tdsqlite3Atoi64(z, pOut, tdsqlite3Strlen30(z), SQLITE_UTF8);
-  }
-}
-
-/*
-** If zNum represents an integer that will fit in 32-bits, then set
-** *pValue to that integer and return true.  Otherwise return false.
-**
-** This routine accepts both decimal and hexadecimal notation for integers.
-**
-** Any non-numeric characters that following zNum are ignored.
-** This is different from tdsqlite3Atoi64() which requires the
-** input number to be zero-terminated.
-*/
-SQLITE_PRIVATE int tdsqlite3GetInt32(const char *zNum, int *pValue){
-  sqlite_int64 v = 0;
-  int i, c;
-  int neg = 0;
-  if( zNum[0]=='-' ){
-    neg = 1;
-    zNum++;
-  }else if( zNum[0]=='+' ){
-    zNum++;
-  }
-#ifndef SQLITE_OMIT_HEX_INTEGER
-  else if( zNum[0]=='0'
-        && (zNum[1]=='x' || zNum[1]=='X')
-        && tdsqlite3Isxdigit(zNum[2])
-  ){
-    u32 u = 0;
-    zNum += 2;
-    while( zNum[0]=='0' ) zNum++;
-    for(i=0; tdsqlite3Isxdigit(zNum[i]) && i<8; i++){
-      u = u*16 + tdsqlite3HexToInt(zNum[i]);
-    }
-    if( (u&0x80000000)==0 && tdsqlite3Isxdigit(zNum[i])==0 ){
-      memcpy(pValue, &u, 4);
-      return 1;
-    }else{
-      return 0;
-    }
-  }
-#endif
-  if( !tdsqlite3Isdigit(zNum[0]) ) return 0;
-  while( zNum[0]=='0' ) zNum++;
-  for(i=0; i<11 && (c = zNum[i] - '0')>=0 && c<=9; i++){
-    v = v*10 + c;
-  }
-
-  /* The longest decimal representation of a 32 bit integer is 10 digits:
-  **
-  **             1234567890
-  **     2^31 -> 2147483648
-  */
-  testcase( i==10 );
-  if( i>10 ){
-    return 0;
-  }
-  testcase( v-neg==2147483647 );
-  if( v-neg>2147483647 ){
-    return 0;
-  }
-  if( neg ){
-    v = -v;
-  }
-  *pValue = (int)v;
-  return 1;
-}
-
-/*
-** Return a 32-bit integer value extracted from a string.  If the
-** string is not an integer, just return 0.
-*/
-SQLITE_PRIVATE int tdsqlite3Atoi(const char *z){
-  int x = 0;
-  if( z ) tdsqlite3GetInt32(z, &x);
-  return x;
-}
-
-/*
-** The variable-length integer encoding is as follows:
-**
-** KEY:
-**         A = 0xxxxxxx    7 bits of data and one flag bit
-**         B = 1xxxxxxx    7 bits of data and one flag bit
-**         C = xxxxxxxx    8 bits of data
-**
-**  7 bits - A
-** 14 bits - BA
-** 21 bits - BBA
-** 28 bits - BBBA
-** 35 bits - BBBBA
-** 42 bits - BBBBBA
-** 49 bits - BBBBBBA
-** 56 bits - BBBBBBBA
-** 64 bits - BBBBBBBBC
-*/
-
-/*
-** Write a 64-bit variable-length integer to memory starting at p[0].
-** The length of data write will be between 1 and 9 bytes.  The number
-** of bytes written is returned.
-**
-** A variable-length integer consists of the lower 7 bits of each byte
-** for all bytes that have the 8th bit set and one byte with the 8th
-** bit clear.  Except, if we get to the 9th byte, it stores the full
-** 8 bits and is the last byte.
-*/
-static int SQLITE_NOINLINE putVarint64(unsigned char *p, u64 v){
-  int i, j, n;
-  u8 buf[10];
-  if( v & (((u64)0xff000000)<<32) ){
-    p[8] = (u8)v;
-    v >>= 8;
-    for(i=7; i>=0; i--){
-      p[i] = (u8)((v & 0x7f) | 0x80);
-      v >>= 7;
-    }
-    return 9;
-  }    
-  n = 0;
-  do{
-    buf[n++] = (u8)((v & 0x7f) | 0x80);
-    v >>= 7;
-  }while( v!=0 );
-  buf[0] &= 0x7f;
-  assert( n<=9 );
-  for(i=0, j=n-1; j>=0; j--, i++){
-    p[i] = buf[j];
-  }
-  return n;
-}
-SQLITE_PRIVATE int tdsqlite3PutVarint(unsigned char *p, u64 v){
-  if( v<=0x7f ){
-    p[0] = v&0x7f;
-    return 1;
-  }
-  if( v<=0x3fff ){
-    p[0] = ((v>>7)&0x7f)|0x80;
-    p[1] = v&0x7f;
-    return 2;
-  }
-  return putVarint64(p,v);
-}
-
-/*
-** Bitmasks used by tdsqlite3GetVarint().  These precomputed constants
-** are defined here rather than simply putting the constant expressions
-** inline in order to work around bugs in the RVT compiler.
-**
-** SLOT_2_0     A mask for  (0x7f<<14) | 0x7f
-**
-** SLOT_4_2_0   A mask for  (0x7f<<28) | SLOT_2_0
-*/
-#define SLOT_2_0     0x001fc07f
-#define SLOT_4_2_0   0xf01fc07f
-
-
-/*
-** Read a 64-bit variable-length integer from memory starting at p[0].
-** Return the number of bytes read.  The value is stored in *v.
-*/
-SQLITE_PRIVATE u8 tdsqlite3GetVarint(const unsigned char *p, u64 *v){
-  u32 a,b,s;
-
-  if( ((signed char*)p)[0]>=0 ){
-    *v = *p;
-    return 1;
-  }
-  if( ((signed char*)p)[1]>=0 ){
-    *v = ((u32)(p[0]&0x7f)<<7) | p[1];
-    return 2;
-  }
-
-  /* Verify that constants are precomputed correctly */
-  assert( SLOT_2_0 == ((0x7f<<14) | (0x7f)) );
-  assert( SLOT_4_2_0 == ((0xfU<<28) | (0x7f<<14) | (0x7f)) );
-
-  a = ((u32)p[0])<<14;
-  b = p[1];
-  p += 2;
-  a |= *p;
-  /* a: p0<<14 | p2 (unmasked) */
-  if (!(a&0x80))
-  {
-    a &= SLOT_2_0;
-    b &= 0x7f;
-    b = b<<7;
-    a |= b;
-    *v = a;
-    return 3;
-  }
-
-  /* CSE1 from below */
-  a &= SLOT_2_0;
-  p++;
-  b = b<<14;
-  b |= *p;
-  /* b: p1<<14 | p3 (unmasked) */
-  if (!(b&0x80))
-  {
-    b &= SLOT_2_0;
-    /* moved CSE1 up */
-    /* a &= (0x7f<<14)|(0x7f); */
-    a = a<<7;
-    a |= b;
-    *v = a;
-    return 4;
-  }
-
-  /* a: p0<<14 | p2 (masked) */
-  /* b: p1<<14 | p3 (unmasked) */
-  /* 1:save off p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
-  /* moved CSE1 up */
-  /* a &= (0x7f<<14)|(0x7f); */
-  b &= SLOT_2_0;
-  s = a;
-  /* s: p0<<14 | p2 (masked) */
-
-  p++;
-  a = a<<14;
-  a |= *p;
-  /* a: p0<<28 | p2<<14 | p4 (unmasked) */
-  if (!(a&0x80))
-  {
-    /* we can skip these cause they were (effectively) done above
-    ** while calculating s */
-    /* a &= (0x7f<<28)|(0x7f<<14)|(0x7f); */
-    /* b &= (0x7f<<14)|(0x7f); */
-    b = b<<7;
-    a |= b;
-    s = s>>18;
-    *v = ((u64)s)<<32 | a;
-    return 5;
-  }
-
-  /* 2:save off p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
-  s = s<<7;
-  s |= b;
-  /* s: p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
-
-  p++;
-  b = b<<14;
-  b |= *p;
-  /* b: p1<<28 | p3<<14 | p5 (unmasked) */
-  if (!(b&0x80))
-  {
-    /* we can skip this cause it was (effectively) done above in calc'ing s */
-    /* b &= (0x7f<<28)|(0x7f<<14)|(0x7f); */
-    a &= SLOT_2_0;
-    a = a<<7;
-    a |= b;
-    s = s>>18;
-    *v = ((u64)s)<<32 | a;
-    return 6;
-  }
-
-  p++;
-  a = a<<14;
-  a |= *p;
-  /* a: p2<<28 | p4<<14 | p6 (unmasked) */
-  if (!(a&0x80))
-  {
-    a &= SLOT_4_2_0;
-    b &= SLOT_2_0;
-    b = b<<7;
-    a |= b;
-    s = s>>11;
-    *v = ((u64)s)<<32 | a;
-    return 7;
-  }
-
-  /* CSE2 from below */
-  a &= SLOT_2_0;
-  p++;
-  b = b<<14;
-  b |= *p;
-  /* b: p3<<28 | p5<<14 | p7 (unmasked) */
-  if (!(b&0x80))
-  {
-    b &= SLOT_4_2_0;
-    /* moved CSE2 up */
-    /* a &= (0x7f<<14)|(0x7f); */
-    a = a<<7;
-    a |= b;
-    s = s>>4;
-    *v = ((u64)s)<<32 | a;
-    return 8;
-  }
-
-  p++;
-  a = a<<15;
-  a |= *p;
-  /* a: p4<<29 | p6<<15 | p8 (unmasked) */
-
-  /* moved CSE2 up */
-  /* a &= (0x7f<<29)|(0x7f<<15)|(0xff); */
-  b &= SLOT_2_0;
-  b = b<<8;
-  a |= b;
-
-  s = s<<4;
-  b = p[-4];
-  b &= 0x7f;
-  b = b>>3;
-  s |= b;
-
-  *v = ((u64)s)<<32 | a;
-
-  return 9;
-}
-
-/*
-** Read a 32-bit variable-length integer from memory starting at p[0].
-** Return the number of bytes read.  The value is stored in *v.
-**
-** If the varint stored in p[0] is larger than can fit in a 32-bit unsigned
-** integer, then set *v to 0xffffffff.
-**
-** A MACRO version, getVarint32, is provided which inlines the 
-** single-byte case.  All code should use the MACRO version as 
-** this function assumes the single-byte case has already been handled.
-*/
-SQLITE_PRIVATE u8 tdsqlite3GetVarint32(const unsigned char *p, u32 *v){
-  u32 a,b;
-
-  /* The 1-byte case.  Overwhelmingly the most common.  Handled inline
-  ** by the getVarin32() macro */
-  a = *p;
-  /* a: p0 (unmasked) */
-#ifndef getVarint32
-  if (!(a&0x80))
-  {
-    /* Values between 0 and 127 */
-    *v = a;
-    return 1;
-  }
-#endif
-
-  /* The 2-byte case */
-  p++;
-  b = *p;
-  /* b: p1 (unmasked) */
-  if (!(b&0x80))
-  {
-    /* Values between 128 and 16383 */
-    a &= 0x7f;
-    a = a<<7;
-    *v = a | b;
-    return 2;
-  }
-
-  /* The 3-byte case */
-  p++;
-  a = a<<14;
-  a |= *p;
-  /* a: p0<<14 | p2 (unmasked) */
-  if (!(a&0x80))
-  {
-    /* Values between 16384 and 2097151 */
-    a &= (0x7f<<14)|(0x7f);
-    b &= 0x7f;
-    b = b<<7;
-    *v = a | b;
-    return 3;
-  }
-
-  /* A 32-bit varint is used to store size information in btrees.
-  ** Objects are rarely larger than 2MiB limit of a 3-byte varint.
-  ** A 3-byte varint is sufficient, for example, to record the size
-  ** of a 1048569-byte BLOB or string.
-  **
-  ** We only unroll the first 1-, 2-, and 3- byte cases.  The very
-  ** rare larger cases can be handled by the slower 64-bit varint
-  ** routine.
-  */
-#if 1
-  {
-    u64 v64;
-    u8 n;
-
-    p -= 2;
-    n = tdsqlite3GetVarint(p, &v64);
-    assert( n>3 && n<=9 );
-    if( (v64 & SQLITE_MAX_U32)!=v64 ){
-      *v = 0xffffffff;
-    }else{
-      *v = (u32)v64;
-    }
-    return n;
-  }
-
-#else
-  /* For following code (kept for historical record only) shows an
-  ** unrolling for the 3- and 4-byte varint cases.  This code is
-  ** slightly faster, but it is also larger and much harder to test.
-  */
-  p++;
-  b = b<<14;
-  b |= *p;
-  /* b: p1<<14 | p3 (unmasked) */
-  if (!(b&0x80))
-  {
-    /* Values between 2097152 and 268435455 */
-    b &= (0x7f<<14)|(0x7f);
-    a &= (0x7f<<14)|(0x7f);
-    a = a<<7;
-    *v = a | b;
-    return 4;
-  }
-
-  p++;
-  a = a<<14;
-  a |= *p;
-  /* a: p0<<28 | p2<<14 | p4 (unmasked) */
-  if (!(a&0x80))
-  {
-    /* Values  between 268435456 and 34359738367 */
-    a &= SLOT_4_2_0;
-    b &= SLOT_4_2_0;
-    b = b<<7;
-    *v = a | b;
-    return 5;
-  }
-
-  /* We can only reach this point when reading a corrupt database
-  ** file.  In that case we are not in any hurry.  Use the (relatively
-  ** slow) general-purpose tdsqlite3GetVarint() routine to extract the
-  ** value. */
-  {
-    u64 v64;
-    u8 n;
-
-    p -= 4;
-    n = tdsqlite3GetVarint(p, &v64);
-    assert( n>5 && n<=9 );
-    *v = (u32)v64;
-    return n;
-  }
-#endif
-}
-
-/*
-** Return the number of bytes that will be needed to store the given
-** 64-bit integer.
-*/
-SQLITE_PRIVATE int tdsqlite3VarintLen(u64 v){
-  int i;
-  for(i=1; (v >>= 7)!=0; i++){ assert( i<10 ); }
-  return i;
-}
-
-
-/*
-** Read or write a four-byte big-endian integer value.
-*/
-SQLITE_PRIVATE u32 tdsqlite3Get4byte(const u8 *p){
-#if SQLITE_BYTEORDER==4321
-  u32 x;
-  memcpy(&x,p,4);
-  return x;
-#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
-  u32 x;
-  memcpy(&x,p,4);
-  return __builtin_bswap32(x);
-#elif SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
-  u32 x;
-  memcpy(&x,p,4);
-  return _byteswap_ulong(x);
-#else
-  testcase( p[0]&0x80 );
-  return ((unsigned)p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3];
-#endif
-}
-SQLITE_PRIVATE void tdsqlite3Put4byte(unsigned char *p, u32 v){
-#if SQLITE_BYTEORDER==4321
-  memcpy(p,&v,4);
-#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
-  u32 x = __builtin_bswap32(v);
-  memcpy(p,&x,4);
-#elif SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
-  u32 x = _byteswap_ulong(v);
-  memcpy(p,&x,4);
-#else
-  p[0] = (u8)(v>>24);
-  p[1] = (u8)(v>>16);
-  p[2] = (u8)(v>>8);
-  p[3] = (u8)v;
-#endif
-}
-
-
-
-/*
-** Translate a single byte of Hex into an integer.
-** This routine only works if h really is a valid hexadecimal
-** character:  0..9a..fA..F
-*/
-SQLITE_PRIVATE u8 tdsqlite3HexToInt(int h){
-  assert( (h>='0' && h<='9') ||  (h>='a' && h<='f') ||  (h>='A' && h<='F') );
-#ifdef SQLITE_ASCII
-  h += 9*(1&(h>>6));
-#endif
-#ifdef SQLITE_EBCDIC
-  h += 9*(1&~(h>>4));
-#endif
-  return (u8)(h & 0xf);
-}
-
-#if !defined(SQLITE_OMIT_BLOB_LITERAL) || defined(SQLITE_HAS_CODEC)
-/*
-** Convert a BLOB literal of the form "x'hhhhhh'" into its binary
-** value.  Return a pointer to its binary value.  Space to hold the
-** binary value has been obtained from malloc and must be freed by
-** the calling routine.
-*/
-SQLITE_PRIVATE void *tdsqlite3HexToBlob(tdsqlite3 *db, const char *z, int n){
-  char *zBlob;
-  int i;
-
-  zBlob = (char *)tdsqlite3DbMallocRawNN(db, n/2 + 1);
-  n--;
-  if( zBlob ){
-    for(i=0; i<n; i+=2){
-      zBlob[i/2] = (tdsqlite3HexToInt(z[i])<<4) | tdsqlite3HexToInt(z[i+1]);
-    }
-    zBlob[i/2] = 0;
-  }
-  return zBlob;
-}
-#endif /* !SQLITE_OMIT_BLOB_LITERAL || SQLITE_HAS_CODEC */
-
-/*
-** Log an error that is an API call on a connection pointer that should
-** not have been used.  The "type" of connection pointer is given as the
-** argument.  The zType is a word like "NULL" or "closed" or "invalid".
-*/
-static void logBadConnection(const char *zType){
-  tdsqlite3_log(SQLITE_MISUSE, 
-     "API call with %s database connection pointer",
-     zType
-  );
-}
-
-/*
-** Check to make sure we have a valid db pointer.  This test is not
-** foolproof but it does provide some measure of protection against
-** misuse of the interface such as passing in db pointers that are
-** NULL or which have been previously closed.  If this routine returns
-** 1 it means that the db pointer is valid and 0 if it should not be
-** dereferenced for any reason.  The calling function should invoke
-** SQLITE_MISUSE immediately.
-**
-** tdsqlite3SafetyCheckOk() requires that the db pointer be valid for
-** use.  tdsqlite3SafetyCheckSickOrOk() allows a db pointer that failed to
-** open properly and is not fit for general use but which can be
-** used as an argument to tdsqlite3_errmsg() or tdsqlite3_close().
-*/
-SQLITE_PRIVATE int tdsqlite3SafetyCheckOk(tdsqlite3 *db){
-  u32 magic;
-  if( db==0 ){
-    logBadConnection("NULL");
-    return 0;
-  }
-  magic = db->magic;
-  if( magic!=SQLITE_MAGIC_OPEN ){
-    if( tdsqlite3SafetyCheckSickOrOk(db) ){
-      testcase( tdsqlite3GlobalConfig.xLog!=0 );
-      logBadConnection("unopened");
-    }
-    return 0;
-  }else{
-    return 1;
-  }
-}
-SQLITE_PRIVATE int tdsqlite3SafetyCheckSickOrOk(tdsqlite3 *db){
-  u32 magic;
-  magic = db->magic;
-  if( magic!=SQLITE_MAGIC_SICK &&
-      magic!=SQLITE_MAGIC_OPEN &&
-      magic!=SQLITE_MAGIC_BUSY ){
-    testcase( tdsqlite3GlobalConfig.xLog!=0 );
-    logBadConnection("invalid");
-    return 0;
-  }else{
-    return 1;
-  }
-}
-
-/*
-** Attempt to add, substract, or multiply the 64-bit signed value iB against
-** the other 64-bit signed integer at *pA and store the result in *pA.
-** Return 0 on success.  Or if the operation would have resulted in an
-** overflow, leave *pA unchanged and return 1.
-*/
-SQLITE_PRIVATE int tdsqlite3AddInt64(i64 *pA, i64 iB){
-#if GCC_VERSION>=5004000 && !defined(__INTEL_COMPILER)
-  return __builtin_add_overflow(*pA, iB, pA);
-#else
-  i64 iA = *pA;
-  testcase( iA==0 ); testcase( iA==1 );
-  testcase( iB==-1 ); testcase( iB==0 );
-  if( iB>=0 ){
-    testcase( iA>0 && LARGEST_INT64 - iA == iB );
-    testcase( iA>0 && LARGEST_INT64 - iA == iB - 1 );
-    if( iA>0 && LARGEST_INT64 - iA < iB ) return 1;
-  }else{
-    testcase( iA<0 && -(iA + LARGEST_INT64) == iB + 1 );
-    testcase( iA<0 && -(iA + LARGEST_INT64) == iB + 2 );
-    if( iA<0 && -(iA + LARGEST_INT64) > iB + 1 ) return 1;
-  }
-  *pA += iB;
-  return 0; 
-#endif
-}
-SQLITE_PRIVATE int tdsqlite3SubInt64(i64 *pA, i64 iB){
-#if GCC_VERSION>=5004000 && !defined(__INTEL_COMPILER)
-  return __builtin_sub_overflow(*pA, iB, pA);
-#else
-  testcase( iB==SMALLEST_INT64+1 );
-  if( iB==SMALLEST_INT64 ){
-    testcase( (*pA)==(-1) ); testcase( (*pA)==0 );
-    if( (*pA)>=0 ) return 1;
-    *pA -= iB;
-    return 0;
-  }else{
-    return tdsqlite3AddInt64(pA, -iB);
-  }
-#endif
-}
-SQLITE_PRIVATE int tdsqlite3MulInt64(i64 *pA, i64 iB){
-#if GCC_VERSION>=5004000 && !defined(__INTEL_COMPILER)
-  return __builtin_mul_overflow(*pA, iB, pA);
-#else
-  i64 iA = *pA;
-  if( iB>0 ){
-    if( iA>LARGEST_INT64/iB ) return 1;
-    if( iA<SMALLEST_INT64/iB ) return 1;
-  }else if( iB<0 ){
-    if( iA>0 ){
-      if( iB<SMALLEST_INT64/iA ) return 1;
-    }else if( iA<0 ){
-      if( iB==SMALLEST_INT64 ) return 1;
-      if( iA==SMALLEST_INT64 ) return 1;
-      if( -iA>LARGEST_INT64/-iB ) return 1;
-    }
-  }
-  *pA = iA*iB;
-  return 0;
-#endif
-}
-
-/*
-** Compute the absolute value of a 32-bit signed integer, of possible.  Or 
-** if the integer has a value of -2147483648, return +2147483647
-*/
-SQLITE_PRIVATE int tdsqlite3AbsInt32(int x){
-  if( x>=0 ) return x;
-  if( x==(int)0x80000000 ) return 0x7fffffff;
-  return -x;
-}
-
-#ifdef SQLITE_ENABLE_8_3_NAMES
-/*
-** If SQLITE_ENABLE_8_3_NAMES is set at compile-time and if the database
-** filename in zBaseFilename is a URI with the "8_3_names=1" parameter and
-** if filename in z[] has a suffix (a.k.a. "extension") that is longer than
-** three characters, then shorten the suffix on z[] to be the last three
-** characters of the original suffix.
-**
-** If SQLITE_ENABLE_8_3_NAMES is set to 2 at compile-time, then always
-** do the suffix shortening regardless of URI parameter.
-**
-** Examples:
-**
-**     test.db-journal    =>   test.nal
-**     test.db-wal        =>   test.wal
-**     test.db-shm        =>   test.shm
-**     test.db-mj7f3319fa =>   test.9fa
-*/
-SQLITE_PRIVATE void tdsqlite3FileSuffix3(const char *zBaseFilename, char *z){
-#if SQLITE_ENABLE_8_3_NAMES<2
-  if( tdsqlite3_uri_boolean(zBaseFilename, "8_3_names", 0) )
-#endif
-  {
-    int i, sz;
-    sz = tdsqlite3Strlen30(z);
-    for(i=sz-1; i>0 && z[i]!='/' && z[i]!='.'; i--){}
-    if( z[i]=='.' && ALWAYS(sz>i+4) ) memmove(&z[i+1], &z[sz-3], 4);
-  }
-}
-#endif
-
-/* 
-** Find (an approximate) sum of two LogEst values.  This computation is
-** not a simple "+" operator because LogEst is stored as a logarithmic
-** value.
-** 
-*/
-SQLITE_PRIVATE LogEst tdsqlite3LogEstAdd(LogEst a, LogEst b){
-  static const unsigned char x[] = {
-     10, 10,                         /* 0,1 */
-      9, 9,                          /* 2,3 */
-      8, 8,                          /* 4,5 */
-      7, 7, 7,                       /* 6,7,8 */
-      6, 6, 6,                       /* 9,10,11 */
-      5, 5, 5,                       /* 12-14 */
-      4, 4, 4, 4,                    /* 15-18 */
-      3, 3, 3, 3, 3, 3,              /* 19-24 */
-      2, 2, 2, 2, 2, 2, 2,           /* 25-31 */
-  };
-  if( a>=b ){
-    if( a>b+49 ) return a;
-    if( a>b+31 ) return a+1;
-    return a+x[a-b];
-  }else{
-    if( b>a+49 ) return b;
-    if( b>a+31 ) return b+1;
-    return b+x[b-a];
-  }
-}
-
-/*
-** Convert an integer into a LogEst.  In other words, compute an
-** approximation for 10*log2(x).
-*/
-SQLITE_PRIVATE LogEst tdsqlite3LogEst(u64 x){
-  static LogEst a[] = { 0, 2, 3, 5, 6, 7, 8, 9 };
-  LogEst y = 40;
-  if( x<8 ){
-    if( x<2 ) return 0;
-    while( x<8 ){  y -= 10; x <<= 1; }
-  }else{
-#if GCC_VERSION>=5004000
-    int i = 60 - __builtin_clzll(x);
-    y += i*10;
-    x >>= i;
-#else
-    while( x>255 ){ y += 40; x >>= 4; }  /*OPTIMIZATION-IF-TRUE*/
-    while( x>15 ){  y += 10; x >>= 1; }
-#endif
-  }
-  return a[x&7] + y - 10;
-}
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/*
-** Convert a double into a LogEst
-** In other words, compute an approximation for 10*log2(x).
-*/
-SQLITE_PRIVATE LogEst tdsqlite3LogEstFromDouble(double x){
-  u64 a;
-  LogEst e;
-  assert( sizeof(x)==8 && sizeof(a)==8 );
-  if( x<=1 ) return 0;
-  if( x<=2000000000 ) return tdsqlite3LogEst((u64)x);
-  memcpy(&a, &x, 8);
-  e = (a>>52) - 1022;
-  return e*10;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || \
-    defined(SQLITE_ENABLE_STAT4) || \
-    defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
-/*
-** Convert a LogEst into an integer.
-**
-** Note that this routine is only used when one or more of various
-** non-standard compile-time options is enabled.
-*/
-SQLITE_PRIVATE u64 tdsqlite3LogEstToInt(LogEst x){
-  u64 n;
-  n = x%10;
-  x /= 10;
-  if( n>=5 ) n -= 2;
-  else if( n>=1 ) n -= 1;
-#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || \
-    defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
-  if( x>60 ) return (u64)LARGEST_INT64;
-#else
-  /* If only SQLITE_ENABLE_STAT4 is on, then the largest input
-  ** possible to this routine is 310, resulting in a maximum x of 31 */
-  assert( x<=60 );
-#endif
-  return x>=3 ? (n+8)<<(x-3) : (n+8)>>(3-x);
-}
-#endif /* defined SCANSTAT or STAT4 or ESTIMATED_ROWS */
-
-/*
-** Add a new name/number pair to a VList.  This might require that the
-** VList object be reallocated, so return the new VList.  If an OOM
-** error occurs, the original VList returned and the
-** db->mallocFailed flag is set.
-**
-** A VList is really just an array of integers.  To destroy a VList,
-** simply pass it to tdsqlite3DbFree().
-**
-** The first integer is the number of integers allocated for the whole
-** VList.  The second integer is the number of integers actually used.
-** Each name/number pair is encoded by subsequent groups of 3 or more
-** integers.
-**
-** Each name/number pair starts with two integers which are the numeric
-** value for the pair and the size of the name/number pair, respectively.
-** The text name overlays one or more following integers.  The text name
-** is always zero-terminated.
-**
-** Conceptually:
-**
-**    struct VList {
-**      int nAlloc;   // Number of allocated slots 
-**      int nUsed;    // Number of used slots 
-**      struct VListEntry {
-**        int iValue;    // Value for this entry
-**        int nSlot;     // Slots used by this entry
-**        // ... variable name goes here
-**      } a[0];
-**    }
-**
-** During code generation, pointers to the variable names within the
-** VList are taken.  When that happens, nAlloc is set to zero as an 
-** indication that the VList may never again be enlarged, since the
-** accompanying realloc() would invalidate the pointers.
-*/
-SQLITE_PRIVATE VList *tdsqlite3VListAdd(
-  tdsqlite3 *db,           /* The database connection used for malloc() */
-  VList *pIn,            /* The input VList.  Might be NULL */
-  const char *zName,     /* Name of symbol to add */
-  int nName,             /* Bytes of text in zName */
-  int iVal               /* Value to associate with zName */
-){
-  int nInt;              /* number of sizeof(int) objects needed for zName */
-  char *z;               /* Pointer to where zName will be stored */
-  int i;                 /* Index in pIn[] where zName is stored */
-
-  nInt = nName/4 + 3;
-  assert( pIn==0 || pIn[0]>=3 );  /* Verify ok to add new elements */
-  if( pIn==0 || pIn[1]+nInt > pIn[0] ){
-    /* Enlarge the allocation */
-    tdsqlite3_int64 nAlloc = (pIn ? 2*(tdsqlite3_int64)pIn[0] : 10) + nInt;
-    VList *pOut = tdsqlite3DbRealloc(db, pIn, nAlloc*sizeof(int));
-    if( pOut==0 ) return pIn;
-    if( pIn==0 ) pOut[1] = 2;
-    pIn = pOut;
-    pIn[0] = nAlloc;
-  }
-  i = pIn[1];
-  pIn[i] = iVal;
-  pIn[i+1] = nInt;
-  z = (char*)&pIn[i+2];
-  pIn[1] = i+nInt;
-  assert( pIn[1]<=pIn[0] );
-  memcpy(z, zName, nName);
-  z[nName] = 0;
-  return pIn;
-}
-
-/*
-** Return a pointer to the name of a variable in the given VList that
-** has the value iVal.  Or return a NULL if there is no such variable in
-** the list
-*/
-SQLITE_PRIVATE const char *tdsqlite3VListNumToName(VList *pIn, int iVal){
-  int i, mx;
-  if( pIn==0 ) return 0;
-  mx = pIn[1];
-  i = 2;
-  do{
-    if( pIn[i]==iVal ) return (char*)&pIn[i+2];
-    i += pIn[i+1];
-  }while( i<mx );
-  return 0;
-}
-
-/*
-** Return the number of the variable named zName, if it is in VList.
-** or return 0 if there is no such variable.
-*/
-SQLITE_PRIVATE int tdsqlite3VListNameToNum(VList *pIn, const char *zName, int nName){
-  int i, mx;
-  if( pIn==0 ) return 0;
-  mx = pIn[1];
-  i = 2;
-  do{
-    const char *z = (const char*)&pIn[i+2];
-    if( strncmp(z,zName,nName)==0 && z[nName]==0 ) return pIn[i];
-    i += pIn[i+1];
-  }while( i<mx );
-  return 0;
-}
-
-/************** End of util.c ************************************************/
-/************** Begin file hash.c ********************************************/
-/*
-** 2001 September 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This is the implementation of generic hash-tables
-** used in SQLite.
-*/
-/* #include "sqliteInt.h" */
-/* #include <assert.h> */
-
-/* Turn bulk memory into a hash table object by initializing the
-** fields of the Hash structure.
-**
-** "pNew" is a pointer to the hash table that is to be initialized.
-*/
-SQLITE_PRIVATE void tdsqlite3HashInit(Hash *pNew){
-  assert( pNew!=0 );
-  pNew->first = 0;
-  pNew->count = 0;
-  pNew->htsize = 0;
-  pNew->ht = 0;
-}
-
-/* Remove all entries from a hash table.  Reclaim all memory.
-** Call this routine to delete a hash table or to reset a hash table
-** to the empty state.
-*/
-SQLITE_PRIVATE void tdsqlite3HashClear(Hash *pH){
-  HashElem *elem;         /* For looping over all elements of the table */
-
-  assert( pH!=0 );
-  elem = pH->first;
-  pH->first = 0;
-  tdsqlite3_free(pH->ht);
-  pH->ht = 0;
-  pH->htsize = 0;
-  while( elem ){
-    HashElem *next_elem = elem->next;
-    tdsqlite3_free(elem);
-    elem = next_elem;
-  }
-  pH->count = 0;
-}
-
-/*
-** The hashing function.
-*/
-static unsigned int strHash(const char *z){
-  unsigned int h = 0;
-  unsigned char c;
-  while( (c = (unsigned char)*z++)!=0 ){     /*OPTIMIZATION-IF-TRUE*/
-    /* Knuth multiplicative hashing.  (Sorting & Searching, p. 510).
-    ** 0x9e3779b1 is 2654435761 which is the closest prime number to
-    ** (2**32)*golden_ratio, where golden_ratio = (sqrt(5) - 1)/2. */
-    h += tdsqlite3UpperToLower[c];
-    h *= 0x9e3779b1;
-  }
-  return h;
-}
-
-
-/* Link pNew element into the hash table pH.  If pEntry!=0 then also
-** insert pNew into the pEntry hash bucket.
-*/
-static void insertElement(
-  Hash *pH,              /* The complete hash table */
-  struct _ht *pEntry,    /* The entry into which pNew is inserted */
-  HashElem *pNew         /* The element to be inserted */
-){
-  HashElem *pHead;       /* First element already in pEntry */
-  if( pEntry ){
-    pHead = pEntry->count ? pEntry->chain : 0;
-    pEntry->count++;
-    pEntry->chain = pNew;
-  }else{
-    pHead = 0;
-  }
-  if( pHead ){
-    pNew->next = pHead;
-    pNew->prev = pHead->prev;
-    if( pHead->prev ){ pHead->prev->next = pNew; }
-    else             { pH->first = pNew; }
-    pHead->prev = pNew;
-  }else{
-    pNew->next = pH->first;
-    if( pH->first ){ pH->first->prev = pNew; }
-    pNew->prev = 0;
-    pH->first = pNew;
-  }
-}
-
-
-/* Resize the hash table so that it cantains "new_size" buckets.
-**
-** The hash table might fail to resize if tdsqlite3_malloc() fails or
-** if the new size is the same as the prior size.
-** Return TRUE if the resize occurs and false if not.
-*/
-static int rehash(Hash *pH, unsigned int new_size){
-  struct _ht *new_ht;            /* The new hash table */
-  HashElem *elem, *next_elem;    /* For looping over existing elements */
-
-#if SQLITE_MALLOC_SOFT_LIMIT>0
-  if( new_size*sizeof(struct _ht)>SQLITE_MALLOC_SOFT_LIMIT ){
-    new_size = SQLITE_MALLOC_SOFT_LIMIT/sizeof(struct _ht);
-  }
-  if( new_size==pH->htsize ) return 0;
-#endif
-
-  /* The inability to allocates space for a larger hash table is
-  ** a performance hit but it is not a fatal error.  So mark the
-  ** allocation as a benign. Use tdsqlite3Malloc()/memset(0) instead of 
-  ** tdsqlite3MallocZero() to make the allocation, as tdsqlite3MallocZero()
-  ** only zeroes the requested number of bytes whereas this module will
-  ** use the actual amount of space allocated for the hash table (which
-  ** may be larger than the requested amount).
-  */
-  tdsqlite3BeginBenignMalloc();
-  new_ht = (struct _ht *)tdsqlite3Malloc( new_size*sizeof(struct _ht) );
-  tdsqlite3EndBenignMalloc();
-
-  if( new_ht==0 ) return 0;
-  tdsqlite3_free(pH->ht);
-  pH->ht = new_ht;
-  pH->htsize = new_size = tdsqlite3MallocSize(new_ht)/sizeof(struct _ht);
-  memset(new_ht, 0, new_size*sizeof(struct _ht));
-  for(elem=pH->first, pH->first=0; elem; elem = next_elem){
-    unsigned int h = strHash(elem->pKey) % new_size;
-    next_elem = elem->next;
-    insertElement(pH, &new_ht[h], elem);
-  }
-  return 1;
-}
-
-/* This function (for internal use only) locates an element in an
-** hash table that matches the given key.  If no element is found,
-** a pointer to a static null element with HashElem.data==0 is returned.
-** If pH is not NULL, then the hash for this key is written to *pH.
-*/
-static HashElem *findElementWithHash(
-  const Hash *pH,     /* The pH to be searched */
-  const char *pKey,   /* The key we are searching for */
-  unsigned int *pHash /* Write the hash value here */
-){
-  HashElem *elem;                /* Used to loop thru the element list */
-  unsigned int count;            /* Number of elements left to test */
-  unsigned int h;                /* The computed hash */
-  static HashElem nullElement = { 0, 0, 0, 0 };
-
-  if( pH->ht ){   /*OPTIMIZATION-IF-TRUE*/
-    struct _ht *pEntry;
-    h = strHash(pKey) % pH->htsize;
-    pEntry = &pH->ht[h];
-    elem = pEntry->chain;
-    count = pEntry->count;
-  }else{
-    h = 0;
-    elem = pH->first;
-    count = pH->count;
-  }
-  if( pHash ) *pHash = h;
-  while( count-- ){
-    assert( elem!=0 );
-    if( tdsqlite3StrICmp(elem->pKey,pKey)==0 ){ 
-      return elem;
-    }
-    elem = elem->next;
-  }
-  return &nullElement;
-}
-
-/* Remove a single entry from the hash table given a pointer to that
-** element and a hash on the element's key.
-*/
-static void removeElementGivenHash(
-  Hash *pH,         /* The pH containing "elem" */
-  HashElem* elem,   /* The element to be removed from the pH */
-  unsigned int h    /* Hash value for the element */
-){
-  struct _ht *pEntry;
-  if( elem->prev ){
-    elem->prev->next = elem->next; 
-  }else{
-    pH->first = elem->next;
-  }
-  if( elem->next ){
-    elem->next->prev = elem->prev;
-  }
-  if( pH->ht ){
-    pEntry = &pH->ht[h];
-    if( pEntry->chain==elem ){
-      pEntry->chain = elem->next;
-    }
-    assert( pEntry->count>0 );
-    pEntry->count--;
-  }
-  tdsqlite3_free( elem );
-  pH->count--;
-  if( pH->count==0 ){
-    assert( pH->first==0 );
-    assert( pH->count==0 );
-    tdsqlite3HashClear(pH);
-  }
-}
-
-/* Attempt to locate an element of the hash table pH with a key
-** that matches pKey.  Return the data for this element if it is
-** found, or NULL if there is no match.
-*/
-SQLITE_PRIVATE void *tdsqlite3HashFind(const Hash *pH, const char *pKey){
-  assert( pH!=0 );
-  assert( pKey!=0 );
-  return findElementWithHash(pH, pKey, 0)->data;
-}
-
-/* Insert an element into the hash table pH.  The key is pKey
-** and the data is "data".
-**
-** If no element exists with a matching key, then a new
-** element is created and NULL is returned.
-**
-** If another element already exists with the same key, then the
-** new data replaces the old data and the old data is returned.
-** The key is not copied in this instance.  If a malloc fails, then
-** the new data is returned and the hash table is unchanged.
-**
-** If the "data" parameter to this function is NULL, then the
-** element corresponding to "key" is removed from the hash table.
-*/
-SQLITE_PRIVATE void *tdsqlite3HashInsert(Hash *pH, const char *pKey, void *data){
-  unsigned int h;       /* the hash of the key modulo hash table size */
-  HashElem *elem;       /* Used to loop thru the element list */
-  HashElem *new_elem;   /* New element added to the pH */
-
-  assert( pH!=0 );
-  assert( pKey!=0 );
-  elem = findElementWithHash(pH,pKey,&h);
-  if( elem->data ){
-    void *old_data = elem->data;
-    if( data==0 ){
-      removeElementGivenHash(pH,elem,h);
-    }else{
-      elem->data = data;
-      elem->pKey = pKey;
-    }
-    return old_data;
-  }
-  if( data==0 ) return 0;
-  new_elem = (HashElem*)tdsqlite3Malloc( sizeof(HashElem) );
-  if( new_elem==0 ) return data;
-  new_elem->pKey = pKey;
-  new_elem->data = data;
-  pH->count++;
-  if( pH->count>=10 && pH->count > 2*pH->htsize ){
-    if( rehash(pH, pH->count*2) ){
-      assert( pH->htsize>0 );
-      h = strHash(pKey) % pH->htsize;
-    }
-  }
-  insertElement(pH, pH->ht ? &pH->ht[h] : 0, new_elem);
-  return 0;
-}
-
-/************** End of hash.c ************************************************/
-/************** Begin file opcodes.c *****************************************/
-/* Automatically generated.  Do not edit */
-/* See the tool/mkopcodec.tcl script for details. */
-#if !defined(SQLITE_OMIT_EXPLAIN) \
- || defined(VDBE_PROFILE) \
- || defined(SQLITE_DEBUG)
-#if defined(SQLITE_ENABLE_EXPLAIN_COMMENTS) || defined(SQLITE_DEBUG)
-# define OpHelp(X) "\0" X
-#else
-# define OpHelp(X)
-#endif
-SQLITE_PRIVATE const char *tdsqlite3OpcodeName(int i){
- static const char *const azName[] = {
-    /*   0 */ "Savepoint"        OpHelp(""),
-    /*   1 */ "AutoCommit"       OpHelp(""),
-    /*   2 */ "Transaction"      OpHelp(""),
-    /*   3 */ "SorterNext"       OpHelp(""),
-    /*   4 */ "Prev"             OpHelp(""),
-    /*   5 */ "Next"             OpHelp(""),
-    /*   6 */ "Checkpoint"       OpHelp(""),
-    /*   7 */ "JournalMode"      OpHelp(""),
-    /*   8 */ "Vacuum"           OpHelp(""),
-    /*   9 */ "VFilter"          OpHelp("iplan=r[P3] zplan='P4'"),
-    /*  10 */ "VUpdate"          OpHelp("data=r[P3@P2]"),
-    /*  11 */ "Goto"             OpHelp(""),
-    /*  12 */ "Gosub"            OpHelp(""),
-    /*  13 */ "InitCoroutine"    OpHelp(""),
-    /*  14 */ "Yield"            OpHelp(""),
-    /*  15 */ "MustBeInt"        OpHelp(""),
-    /*  16 */ "Jump"             OpHelp(""),
-    /*  17 */ "Once"             OpHelp(""),
-    /*  18 */ "If"               OpHelp(""),
-    /*  19 */ "Not"              OpHelp("r[P2]= !r[P1]"),
-    /*  20 */ "IfNot"            OpHelp(""),
-    /*  21 */ "IfNullRow"        OpHelp("if P1.nullRow then r[P3]=NULL, goto P2"),
-    /*  22 */ "SeekLT"           OpHelp("key=r[P3@P4]"),
-    /*  23 */ "SeekLE"           OpHelp("key=r[P3@P4]"),
-    /*  24 */ "SeekGE"           OpHelp("key=r[P3@P4]"),
-    /*  25 */ "SeekGT"           OpHelp("key=r[P3@P4]"),
-    /*  26 */ "IfNotOpen"        OpHelp("if( !csr[P1] ) goto P2"),
-    /*  27 */ "IfNoHope"         OpHelp("key=r[P3@P4]"),
-    /*  28 */ "NoConflict"       OpHelp("key=r[P3@P4]"),
-    /*  29 */ "NotFound"         OpHelp("key=r[P3@P4]"),
-    /*  30 */ "Found"            OpHelp("key=r[P3@P4]"),
-    /*  31 */ "SeekRowid"        OpHelp("intkey=r[P3]"),
-    /*  32 */ "NotExists"        OpHelp("intkey=r[P3]"),
-    /*  33 */ "Last"             OpHelp(""),
-    /*  34 */ "IfSmaller"        OpHelp(""),
-    /*  35 */ "SorterSort"       OpHelp(""),
-    /*  36 */ "Sort"             OpHelp(""),
-    /*  37 */ "Rewind"           OpHelp(""),
-    /*  38 */ "IdxLE"            OpHelp("key=r[P3@P4]"),
-    /*  39 */ "IdxGT"            OpHelp("key=r[P3@P4]"),
-    /*  40 */ "IdxLT"            OpHelp("key=r[P3@P4]"),
-    /*  41 */ "IdxGE"            OpHelp("key=r[P3@P4]"),
-    /*  42 */ "RowSetRead"       OpHelp("r[P3]=rowset(P1)"),
-    /*  43 */ "Or"               OpHelp("r[P3]=(r[P1] || r[P2])"),
-    /*  44 */ "And"              OpHelp("r[P3]=(r[P1] && r[P2])"),
-    /*  45 */ "RowSetTest"       OpHelp("if r[P3] in rowset(P1) goto P2"),
-    /*  46 */ "Program"          OpHelp(""),
-    /*  47 */ "FkIfZero"         OpHelp("if fkctr[P1]==0 goto P2"),
-    /*  48 */ "IfPos"            OpHelp("if r[P1]>0 then r[P1]-=P3, goto P2"),
-    /*  49 */ "IfNotZero"        OpHelp("if r[P1]!=0 then r[P1]--, goto P2"),
-    /*  50 */ "IsNull"           OpHelp("if r[P1]==NULL goto P2"),
-    /*  51 */ "NotNull"          OpHelp("if r[P1]!=NULL goto P2"),
-    /*  52 */ "Ne"               OpHelp("IF r[P3]!=r[P1]"),
-    /*  53 */ "Eq"               OpHelp("IF r[P3]==r[P1]"),
-    /*  54 */ "Gt"               OpHelp("IF r[P3]>r[P1]"),
-    /*  55 */ "Le"               OpHelp("IF r[P3]<=r[P1]"),
-    /*  56 */ "Lt"               OpHelp("IF r[P3]<r[P1]"),
-    /*  57 */ "Ge"               OpHelp("IF r[P3]>=r[P1]"),
-    /*  58 */ "ElseNotEq"        OpHelp(""),
-    /*  59 */ "DecrJumpZero"     OpHelp("if (--r[P1])==0 goto P2"),
-    /*  60 */ "IncrVacuum"       OpHelp(""),
-    /*  61 */ "VNext"            OpHelp(""),
-    /*  62 */ "Init"             OpHelp("Start at P2"),
-    /*  63 */ "PureFunc"         OpHelp("r[P3]=func(r[P2@P5])"),
-    /*  64 */ "Function"         OpHelp("r[P3]=func(r[P2@P5])"),
-    /*  65 */ "Return"           OpHelp(""),
-    /*  66 */ "EndCoroutine"     OpHelp(""),
-    /*  67 */ "HaltIfNull"       OpHelp("if r[P3]=null halt"),
-    /*  68 */ "Halt"             OpHelp(""),
-    /*  69 */ "Integer"          OpHelp("r[P2]=P1"),
-    /*  70 */ "Int64"            OpHelp("r[P2]=P4"),
-    /*  71 */ "String"           OpHelp("r[P2]='P4' (len=P1)"),
-    /*  72 */ "Null"             OpHelp("r[P2..P3]=NULL"),
-    /*  73 */ "SoftNull"         OpHelp("r[P1]=NULL"),
-    /*  74 */ "Blob"             OpHelp("r[P2]=P4 (len=P1)"),
-    /*  75 */ "Variable"         OpHelp("r[P2]=parameter(P1,P4)"),
-    /*  76 */ "Move"             OpHelp("r[P2@P3]=r[P1@P3]"),
-    /*  77 */ "Copy"             OpHelp("r[P2@P3+1]=r[P1@P3+1]"),
-    /*  78 */ "SCopy"            OpHelp("r[P2]=r[P1]"),
-    /*  79 */ "IntCopy"          OpHelp("r[P2]=r[P1]"),
-    /*  80 */ "ResultRow"        OpHelp("output=r[P1@P2]"),
-    /*  81 */ "CollSeq"          OpHelp(""),
-    /*  82 */ "AddImm"           OpHelp("r[P1]=r[P1]+P2"),
-    /*  83 */ "RealAffinity"     OpHelp(""),
-    /*  84 */ "Cast"             OpHelp("affinity(r[P1])"),
-    /*  85 */ "Permutation"      OpHelp(""),
-    /*  86 */ "Compare"          OpHelp("r[P1@P3] <-> r[P2@P3]"),
-    /*  87 */ "IsTrue"           OpHelp("r[P2] = coalesce(r[P1]==TRUE,P3) ^ P4"),
-    /*  88 */ "Offset"           OpHelp("r[P3] = sqlite_offset(P1)"),
-    /*  89 */ "Column"           OpHelp("r[P3]=PX"),
-    /*  90 */ "Affinity"         OpHelp("affinity(r[P1@P2])"),
-    /*  91 */ "MakeRecord"       OpHelp("r[P3]=mkrec(r[P1@P2])"),
-    /*  92 */ "Count"            OpHelp("r[P2]=count()"),
-    /*  93 */ "ReadCookie"       OpHelp(""),
-    /*  94 */ "SetCookie"        OpHelp(""),
-    /*  95 */ "ReopenIdx"        OpHelp("root=P2 iDb=P3"),
-    /*  96 */ "OpenRead"         OpHelp("root=P2 iDb=P3"),
-    /*  97 */ "OpenWrite"        OpHelp("root=P2 iDb=P3"),
-    /*  98 */ "OpenDup"          OpHelp(""),
-    /*  99 */ "OpenAutoindex"    OpHelp("nColumn=P2"),
-    /* 100 */ "OpenEphemeral"    OpHelp("nColumn=P2"),
-    /* 101 */ "BitAnd"           OpHelp("r[P3]=r[P1]&r[P2]"),
-    /* 102 */ "BitOr"            OpHelp("r[P3]=r[P1]|r[P2]"),
-    /* 103 */ "ShiftLeft"        OpHelp("r[P3]=r[P2]<<r[P1]"),
-    /* 104 */ "ShiftRight"       OpHelp("r[P3]=r[P2]>>r[P1]"),
-    /* 105 */ "Add"              OpHelp("r[P3]=r[P1]+r[P2]"),
-    /* 106 */ "Subtract"         OpHelp("r[P3]=r[P2]-r[P1]"),
-    /* 107 */ "Multiply"         OpHelp("r[P3]=r[P1]*r[P2]"),
-    /* 108 */ "Divide"           OpHelp("r[P3]=r[P2]/r[P1]"),
-    /* 109 */ "Remainder"        OpHelp("r[P3]=r[P2]%r[P1]"),
-    /* 110 */ "Concat"           OpHelp("r[P3]=r[P2]+r[P1]"),
-    /* 111 */ "SorterOpen"       OpHelp(""),
-    /* 112 */ "BitNot"           OpHelp("r[P2]= ~r[P1]"),
-    /* 113 */ "SequenceTest"     OpHelp("if( cursor[P1].ctr++ ) pc = P2"),
-    /* 114 */ "OpenPseudo"       OpHelp("P3 columns in r[P2]"),
-    /* 115 */ "String8"          OpHelp("r[P2]='P4'"),
-    /* 116 */ "Close"            OpHelp(""),
-    /* 117 */ "ColumnsUsed"      OpHelp(""),
-    /* 118 */ "SeekHit"          OpHelp("seekHit=P2"),
-    /* 119 */ "Sequence"         OpHelp("r[P2]=cursor[P1].ctr++"),
-    /* 120 */ "NewRowid"         OpHelp("r[P2]=rowid"),
-    /* 121 */ "Insert"           OpHelp("intkey=r[P3] data=r[P2]"),
-    /* 122 */ "Delete"           OpHelp(""),
-    /* 123 */ "ResetCount"       OpHelp(""),
-    /* 124 */ "SorterCompare"    OpHelp("if key(P1)!=trim(r[P3],P4) goto P2"),
-    /* 125 */ "SorterData"       OpHelp("r[P2]=data"),
-    /* 126 */ "RowData"          OpHelp("r[P2]=data"),
-    /* 127 */ "Rowid"            OpHelp("r[P2]=rowid"),
-    /* 128 */ "NullRow"          OpHelp(""),
-    /* 129 */ "SeekEnd"          OpHelp(""),
-    /* 130 */ "SorterInsert"     OpHelp("key=r[P2]"),
-    /* 131 */ "IdxInsert"        OpHelp("key=r[P2]"),
-    /* 132 */ "IdxDelete"        OpHelp("key=r[P2@P3]"),
-    /* 133 */ "DeferredSeek"     OpHelp("Move P3 to P1.rowid if needed"),
-    /* 134 */ "IdxRowid"         OpHelp("r[P2]=rowid"),
-    /* 135 */ "FinishSeek"       OpHelp(""),
-    /* 136 */ "Destroy"          OpHelp(""),
-    /* 137 */ "Clear"            OpHelp(""),
-    /* 138 */ "ResetSorter"      OpHelp(""),
-    /* 139 */ "CreateBtree"      OpHelp("r[P2]=root iDb=P1 flags=P3"),
-    /* 140 */ "SqlExec"          OpHelp(""),
-    /* 141 */ "ParseSchema"      OpHelp(""),
-    /* 142 */ "LoadAnalysis"     OpHelp(""),
-    /* 143 */ "DropTable"        OpHelp(""),
-    /* 144 */ "DropIndex"        OpHelp(""),
-    /* 145 */ "DropTrigger"      OpHelp(""),
-    /* 146 */ "IntegrityCk"      OpHelp(""),
-    /* 147 */ "RowSetAdd"        OpHelp("rowset(P1)=r[P2]"),
-    /* 148 */ "Param"            OpHelp(""),
-    /* 149 */ "FkCounter"        OpHelp("fkctr[P1]+=P2"),
-    /* 150 */ "Real"             OpHelp("r[P2]=P4"),
-    /* 151 */ "MemMax"           OpHelp("r[P1]=max(r[P1],r[P2])"),
-    /* 152 */ "OffsetLimit"      OpHelp("if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1)"),
-    /* 153 */ "AggInverse"       OpHelp("accum=r[P3] inverse(r[P2@P5])"),
-    /* 154 */ "AggStep"          OpHelp("accum=r[P3] step(r[P2@P5])"),
-    /* 155 */ "AggStep1"         OpHelp("accum=r[P3] step(r[P2@P5])"),
-    /* 156 */ "AggValue"         OpHelp("r[P3]=value N=P2"),
-    /* 157 */ "AggFinal"         OpHelp("accum=r[P1] N=P2"),
-    /* 158 */ "Expire"           OpHelp(""),
-    /* 159 */ "CursorLock"       OpHelp(""),
-    /* 160 */ "CursorUnlock"     OpHelp(""),
-    /* 161 */ "TableLock"        OpHelp("iDb=P1 root=P2 write=P3"),
-    /* 162 */ "VBegin"           OpHelp(""),
-    /* 163 */ "VCreate"          OpHelp(""),
-    /* 164 */ "VDestroy"         OpHelp(""),
-    /* 165 */ "VOpen"            OpHelp(""),
-    /* 166 */ "VColumn"          OpHelp("r[P3]=vcolumn(P2)"),
-    /* 167 */ "VRename"          OpHelp(""),
-    /* 168 */ "Pagecount"        OpHelp(""),
-    /* 169 */ "MaxPgcnt"         OpHelp(""),
-    /* 170 */ "Trace"            OpHelp(""),
-    /* 171 */ "CursorHint"       OpHelp(""),
-    /* 172 */ "ReleaseReg"       OpHelp("release r[P1@P2] mask P3"),
-    /* 173 */ "Noop"             OpHelp(""),
-    /* 174 */ "Explain"          OpHelp(""),
-    /* 175 */ "Abortable"        OpHelp(""),
-  };
-  return azName[i];
-}
-#endif
-
-/************** End of opcodes.c *********************************************/
-/************** Begin file os_unix.c *****************************************/
-/*
-** 2004 May 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains the VFS implementation for unix-like operating systems
-** include Linux, MacOSX, *BSD, QNX, VxWorks, AIX, HPUX, and others.
-**
-** There are actually several different VFS implementations in this file.
-** The differences are in the way that file locking is done.  The default
-** implementation uses Posix Advisory Locks.  Alternative implementations
-** use flock(), dot-files, various proprietary locking schemas, or simply
-** skip locking all together.
-**
-** This source file is organized into divisions where the logic for various
-** subfunctions is contained within the appropriate division.  PLEASE
-** KEEP THE STRUCTURE OF THIS FILE INTACT.  New code should be placed
-** in the correct division and should be clearly labeled.
-**
-** The layout of divisions is as follows:
-**
-**   *  General-purpose declarations and utility functions.
-**   *  Unique file ID logic used by VxWorks.
-**   *  Various locking primitive implementations (all except proxy locking):
-**      + for Posix Advisory Locks
-**      + for no-op locks
-**      + for dot-file locks
-**      + for flock() locking
-**      + for named semaphore locks (VxWorks only)
-**      + for AFP filesystem locks (MacOSX only)
-**   *  tdsqlite3_file methods not associated with locking.
-**   *  Definitions of tdsqlite3_io_methods objects for all locking
-**      methods plus "finder" functions for each locking method.
-**   *  tdsqlite3_vfs method implementations.
-**   *  Locking primitives for the proxy uber-locking-method. (MacOSX only)
-**   *  Definitions of tdsqlite3_vfs objects for all locking methods
-**      plus implementations of tdsqlite3_os_init() and tdsqlite3_os_end().
-*/
-/* #include "sqliteInt.h" */
-#if SQLITE_OS_UNIX              /* This file is used on unix only */
-
-/*
-** There are various methods for file locking used for concurrency
-** control:
-**
-**   1. POSIX locking (the default),
-**   2. No locking,
-**   3. Dot-file locking,
-**   4. flock() locking,
-**   5. AFP locking (OSX only),
-**   6. Named POSIX semaphores (VXWorks only),
-**   7. proxy locking. (OSX only)
-**
-** Styles 4, 5, and 7 are only available of SQLITE_ENABLE_LOCKING_STYLE
-** is defined to 1.  The SQLITE_ENABLE_LOCKING_STYLE also enables automatic
-** selection of the appropriate locking style based on the filesystem
-** where the database is located.  
-*/
-#if !defined(SQLITE_ENABLE_LOCKING_STYLE)
-#  if defined(__APPLE__)
-#    define SQLITE_ENABLE_LOCKING_STYLE 1
-#  else
-#    define SQLITE_ENABLE_LOCKING_STYLE 0
-#  endif
-#endif
-
-/* Use pread() and pwrite() if they are available */
-#if defined(__APPLE__)
-# define HAVE_PREAD 1
-# define HAVE_PWRITE 1
-#endif
-#if defined(HAVE_PREAD64) && defined(HAVE_PWRITE64)
-# undef USE_PREAD
-# define USE_PREAD64 1
-#elif defined(HAVE_PREAD) && defined(HAVE_PWRITE)
-# undef USE_PREAD64
-# define USE_PREAD 1
-#endif
-
-/*
-** standard include files.
-*/
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-/* #include <unistd.h> */
-/* #include <time.h> */
-#include <sys/time.h>
-/* #include <errno.h> */
-#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
-/* # include <sys/mman.h> */
-#endif
-
-#if SQLITE_ENABLE_LOCKING_STYLE
-/* # include <sys/ioctl.h> */
-# include <sys/file.h>
-# include <sys/param.h>
-#endif /* SQLITE_ENABLE_LOCKING_STYLE */
-
-/*
-** Try to determine if gethostuuid() is available based on standard
-** macros.  This might sometimes compute the wrong value for some
-** obscure platforms.  For those cases, simply compile with one of
-** the following:
-**
-**    -DHAVE_GETHOSTUUID=0
-**    -DHAVE_GETHOSTUUID=1
-**
-** None if this matters except when building on Apple products with
-** -DSQLITE_ENABLE_LOCKING_STYLE.
-*/
-#ifndef HAVE_GETHOSTUUID
-# define HAVE_GETHOSTUUID 0
-# if defined(__APPLE__) && ((__MAC_OS_X_VERSION_MIN_REQUIRED > 1050) || \
-                            (__IPHONE_OS_VERSION_MIN_REQUIRED > 2000))
-#    if (!defined(TARGET_OS_EMBEDDED) || (TARGET_OS_EMBEDDED==0)) \
-         && (!defined(TARGET_IPHONE_SIMULATOR) || (TARGET_IPHONE_SIMULATOR==0))
-#      undef HAVE_GETHOSTUUID
-#      define HAVE_GETHOSTUUID 1
-#    else
-#      warning "gethostuuid() is disabled."
-#    endif
-#  endif
-#endif
-
-
-#if OS_VXWORKS
-/* # include <sys/ioctl.h> */
-# include <semaphore.h>
-# include <limits.h>
-#endif /* OS_VXWORKS */
-
-#if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE
-# include <sys/mount.h>
-#endif
-
-#ifdef HAVE_UTIME
-# include <utime.h>
-#endif
-
-/*
-** Allowed values of unixFile.fsFlags
-*/
-#define SQLITE_FSFLAGS_IS_MSDOS     0x1
-
-/*
-** If we are to be thread-safe, include the pthreads header.
-*/
-#if SQLITE_THREADSAFE
-/* # include <pthread.h> */
-#endif
-
-/*
-** Default permissions when creating a new file
-*/
-#ifndef SQLITE_DEFAULT_FILE_PERMISSIONS
-# define SQLITE_DEFAULT_FILE_PERMISSIONS 0644
-#endif
-
-/*
-** Default permissions when creating auto proxy dir
-*/
-#ifndef SQLITE_DEFAULT_PROXYDIR_PERMISSIONS
-# define SQLITE_DEFAULT_PROXYDIR_PERMISSIONS 0755
-#endif
-
-/*
-** Maximum supported path-length.
-*/
-#define MAX_PATHNAME 512
-
-/*
-** Maximum supported symbolic links
-*/
-#define SQLITE_MAX_SYMLINKS 100
-
-/* Always cast the getpid() return type for compatibility with
-** kernel modules in VxWorks. */
-#define osGetpid(X) (pid_t)getpid()
-
-/*
-** Only set the lastErrno if the error code is a real error and not 
-** a normal expected return code of SQLITE_BUSY or SQLITE_OK
-*/
-#define IS_LOCK_ERROR(x)  ((x != SQLITE_OK) && (x != SQLITE_BUSY))
-
-/* Forward references */
-typedef struct unixShm unixShm;               /* Connection shared memory */
-typedef struct unixShmNode unixShmNode;       /* Shared memory instance */
-typedef struct unixInodeInfo unixInodeInfo;   /* An i-node */
-typedef struct UnixUnusedFd UnixUnusedFd;     /* An unused file descriptor */
-
-/*
-** Sometimes, after a file handle is closed by SQLite, the file descriptor
-** cannot be closed immediately. In these cases, instances of the following
-** structure are used to store the file descriptor while waiting for an
-** opportunity to either close or reuse it.
-*/
-struct UnixUnusedFd {
-  int fd;                   /* File descriptor to close */
-  int flags;                /* Flags this file descriptor was opened with */
-  UnixUnusedFd *pNext;      /* Next unused file descriptor on same file */
-};
-
-/*
-** The unixFile structure is subclass of tdsqlite3_file specific to the unix
-** VFS implementations.
-*/
-typedef struct unixFile unixFile;
-struct unixFile {
-  tdsqlite3_io_methods const *pMethod;  /* Always the first entry */
-  tdsqlite3_vfs *pVfs;                  /* The VFS that created this unixFile */
-  unixInodeInfo *pInode;              /* Info about locks on this inode */
-  int h;                              /* The file descriptor */
-  unsigned char eFileLock;            /* The type of lock held on this fd */
-  unsigned short int ctrlFlags;       /* Behavioral bits.  UNIXFILE_* flags */
-  int lastErrno;                      /* The unix errno from last I/O error */
-  void *lockingContext;               /* Locking style specific state */
-  UnixUnusedFd *pPreallocatedUnused;  /* Pre-allocated UnixUnusedFd */
-  const char *zPath;                  /* Name of the file */
-  unixShm *pShm;                      /* Shared memory segment information */
-  int szChunk;                        /* Configured by FCNTL_CHUNK_SIZE */
-#if SQLITE_MAX_MMAP_SIZE>0
-  int nFetchOut;                      /* Number of outstanding xFetch refs */
-  tdsqlite3_int64 mmapSize;             /* Usable size of mapping at pMapRegion */
-  tdsqlite3_int64 mmapSizeActual;       /* Actual size of mapping at pMapRegion */
-  tdsqlite3_int64 mmapSizeMax;          /* Configured FCNTL_MMAP_SIZE value */
-  void *pMapRegion;                   /* Memory mapped region */
-#endif
-  int sectorSize;                     /* Device sector size */
-  int deviceCharacteristics;          /* Precomputed device characteristics */
-#if SQLITE_ENABLE_LOCKING_STYLE
-  int openFlags;                      /* The flags specified at open() */
-#endif
-#if SQLITE_ENABLE_LOCKING_STYLE || defined(__APPLE__)
-  unsigned fsFlags;                   /* cached details from statfs() */
-#endif
-#ifdef SQLITE_ENABLE_SETLK_TIMEOUT
-  unsigned iBusyTimeout;              /* Wait this many millisec on locks */
-#endif
-#if OS_VXWORKS
-  struct vxworksFileId *pId;          /* Unique file ID */
-#endif
-#ifdef SQLITE_DEBUG
-  /* The next group of variables are used to track whether or not the
-  ** transaction counter in bytes 24-27 of database files are updated
-  ** whenever any part of the database changes.  An assertion fault will
-  ** occur if a file is updated without also updating the transaction
-  ** counter.  This test is made to avoid new problems similar to the
-  ** one described by ticket #3584. 
-  */
-  unsigned char transCntrChng;   /* True if the transaction counter changed */
-  unsigned char dbUpdate;        /* True if any part of database file changed */
-  unsigned char inNormalWrite;   /* True if in a normal write operation */
-
-#endif
-
-#ifdef SQLITE_TEST
-  /* In test mode, increase the size of this structure a bit so that 
-  ** it is larger than the struct CrashFile defined in test6.c.
-  */
-  char aPadding[32];
-#endif
-};
-
-/* This variable holds the process id (pid) from when the xRandomness()
-** method was called.  If xOpen() is called from a different process id,
-** indicating that a fork() has occurred, the PRNG will be reset.
-*/
-static pid_t randomnessPid = 0;
-
-/*
-** Allowed values for the unixFile.ctrlFlags bitmask:
-*/
-#define UNIXFILE_EXCL        0x01     /* Connections from one process only */
-#define UNIXFILE_RDONLY      0x02     /* Connection is read only */
-#define UNIXFILE_PERSIST_WAL 0x04     /* Persistent WAL mode */
-#ifndef SQLITE_DISABLE_DIRSYNC
-# define UNIXFILE_DIRSYNC    0x08     /* Directory sync needed */
-#else
-# define UNIXFILE_DIRSYNC    0x00
-#endif
-#define UNIXFILE_PSOW        0x10     /* SQLITE_IOCAP_POWERSAFE_OVERWRITE */
-#define UNIXFILE_DELETE      0x20     /* Delete on close */
-#define UNIXFILE_URI         0x40     /* Filename might have query parameters */
-#define UNIXFILE_NOLOCK      0x80     /* Do no file locking */
-
-/*
-** Include code that is common to all os_*.c files
-*/
-/************** Include os_common.h in the middle of os_unix.c ***************/
-/************** Begin file os_common.h ***************************************/
-/*
-** 2004 May 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains macros and a little bit of code that is common to
-** all of the platform-specific files (os_*.c) and is #included into those
-** files.
-**
-** This file should be #included by the os_*.c files only.  It is not a
-** general purpose header file.
-*/
-#ifndef _OS_COMMON_H_
-#define _OS_COMMON_H_
-
-/*
-** At least two bugs have slipped in because we changed the MEMORY_DEBUG
-** macro to SQLITE_DEBUG and some older makefiles have not yet made the
-** switch.  The following code should catch this problem at compile-time.
-*/
-#ifdef MEMORY_DEBUG
-# error "The MEMORY_DEBUG macro is obsolete.  Use SQLITE_DEBUG instead."
-#endif
-
-/*
-** Macros for performance tracing.  Normally turned off.  Only works
-** on i486 hardware.
-*/
-#ifdef SQLITE_PERFORMANCE_TRACE
-
-/*
-** hwtime.h contains inline assembler code for implementing
-** high-performance timing routines.
-*/
-/************** Include hwtime.h in the middle of os_common.h ****************/
-/************** Begin file hwtime.h ******************************************/
-/*
-** 2008 May 27
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains inline asm code for retrieving "high-performance"
-** counters for x86 and x86_64 class CPUs.
-*/
-#ifndef SQLITE_HWTIME_H
-#define SQLITE_HWTIME_H
-
-/*
-** The following routine only works on pentium-class (or newer) processors.
-** It uses the RDTSC opcode to read the cycle count value out of the
-** processor and returns that value.  This can be used for high-res
-** profiling.
-*/
-#if !defined(__STRICT_ANSI__) && \
-    (defined(__GNUC__) || defined(_MSC_VER)) && \
-    (defined(i386) || defined(__i386__) || defined(_M_IX86))
-
-  #if defined(__GNUC__)
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-     unsigned int lo, hi;
-     __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
-     return (sqlite_uint64)hi << 32 | lo;
-  }
-
-  #elif defined(_MSC_VER)
-
-  __declspec(naked) __inline sqlite_uint64 __cdecl tdsqlite3Hwtime(void){
-     __asm {
-        rdtsc
-        ret       ; return value at EDX:EAX
-     }
-  }
-
-  #endif
-
-#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__x86_64__))
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-      unsigned long val;
-      __asm__ __volatile__ ("rdtsc" : "=A" (val));
-      return val;
-  }
- 
-#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__ppc__))
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-      unsigned long long retval;
-      unsigned long junk;
-      __asm__ __volatile__ ("\n\
-          1:      mftbu   %1\n\
-                  mftb    %L0\n\
-                  mftbu   %0\n\
-                  cmpw    %0,%1\n\
-                  bne     1b"
-                  : "=r" (retval), "=r" (junk));
-      return retval;
-  }
-
-#else
-
-  /*
-  ** asm() is needed for hardware timing support.  Without asm(),
-  ** disable the tdsqlite3Hwtime() routine.
-  **
-  ** tdsqlite3Hwtime() is only used for some obscure debugging
-  ** and analysis configurations, not in any deliverable, so this
-  ** should not be a great loss.
-  */
-SQLITE_PRIVATE   sqlite_uint64 tdsqlite3Hwtime(void){ return ((sqlite_uint64)0); }
-
-#endif
-
-#endif /* !defined(SQLITE_HWTIME_H) */
-
-/************** End of hwtime.h **********************************************/
-/************** Continuing where we left off in os_common.h ******************/
-
-static sqlite_uint64 g_start;
-static sqlite_uint64 g_elapsed;
-#define TIMER_START       g_start=tdsqlite3Hwtime()
-#define TIMER_END         g_elapsed=tdsqlite3Hwtime()-g_start
-#define TIMER_ELAPSED     g_elapsed
-#else
-#define TIMER_START
-#define TIMER_END
-#define TIMER_ELAPSED     ((sqlite_uint64)0)
-#endif
-
-/*
-** If we compile with the SQLITE_TEST macro set, then the following block
-** of code will give us the ability to simulate a disk I/O error.  This
-** is used for testing the I/O recovery logic.
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API extern int tdsqlite3_io_error_hit;
-SQLITE_API extern int tdsqlite3_io_error_hardhit;
-SQLITE_API extern int tdsqlite3_io_error_pending;
-SQLITE_API extern int tdsqlite3_io_error_persist;
-SQLITE_API extern int tdsqlite3_io_error_benign;
-SQLITE_API extern int tdsqlite3_diskfull_pending;
-SQLITE_API extern int tdsqlite3_diskfull;
-#define SimulateIOErrorBenign(X) tdsqlite3_io_error_benign=(X)
-#define SimulateIOError(CODE)  \
-  if( (tdsqlite3_io_error_persist && tdsqlite3_io_error_hit) \
-       || tdsqlite3_io_error_pending-- == 1 )  \
-              { local_ioerr(); CODE; }
-static void local_ioerr(){
-  IOTRACE(("IOERR\n"));
-  tdsqlite3_io_error_hit++;
-  if( !tdsqlite3_io_error_benign ) tdsqlite3_io_error_hardhit++;
-}
-#define SimulateDiskfullError(CODE) \
-   if( tdsqlite3_diskfull_pending ){ \
-     if( tdsqlite3_diskfull_pending == 1 ){ \
-       local_ioerr(); \
-       tdsqlite3_diskfull = 1; \
-       tdsqlite3_io_error_hit = 1; \
-       CODE; \
-     }else{ \
-       tdsqlite3_diskfull_pending--; \
-     } \
-   }
-#else
-#define SimulateIOErrorBenign(X)
-#define SimulateIOError(A)
-#define SimulateDiskfullError(A)
-#endif /* defined(SQLITE_TEST) */
-
-/*
-** When testing, keep a count of the number of open files.
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API extern int tdsqlite3_open_file_count;
-#define OpenCounter(X)  tdsqlite3_open_file_count+=(X)
-#else
-#define OpenCounter(X)
-#endif /* defined(SQLITE_TEST) */
-
-#endif /* !defined(_OS_COMMON_H_) */
-
-/************** End of os_common.h *******************************************/
-/************** Continuing where we left off in os_unix.c ********************/
-
-/*
-** Define various macros that are missing from some systems.
-*/
-#ifndef O_LARGEFILE
-# define O_LARGEFILE 0
-#endif
-#ifdef SQLITE_DISABLE_LFS
-# undef O_LARGEFILE
-# define O_LARGEFILE 0
-#endif
-#ifndef O_NOFOLLOW
-# define O_NOFOLLOW 0
-#endif
-#ifndef O_BINARY
-# define O_BINARY 0
-#endif
-
-/*
-** The threadid macro resolves to the thread-id or to 0.  Used for
-** testing and debugging only.
-*/
-#if SQLITE_THREADSAFE
-#define threadid pthread_self()
-#else
-#define threadid 0
-#endif
-
-/*
-** HAVE_MREMAP defaults to true on Linux and false everywhere else.
-*/
-#if !defined(HAVE_MREMAP)
-# if defined(__linux__) && defined(_GNU_SOURCE)
-#  define HAVE_MREMAP 1
-# else
-#  define HAVE_MREMAP 0
-# endif
-#endif
-
-/*
-** Explicitly call the 64-bit version of lseek() on Android. Otherwise, lseek()
-** is the 32-bit version, even if _FILE_OFFSET_BITS=64 is defined.
-*/
-#ifdef __ANDROID__
-# define lseek lseek64
-#endif
-
-#ifdef __linux__
-/*
-** Linux-specific IOCTL magic numbers used for controlling F2FS
-*/
-#define F2FS_IOCTL_MAGIC        0xf5
-#define F2FS_IOC_START_ATOMIC_WRITE     _IO(F2FS_IOCTL_MAGIC, 1)
-#define F2FS_IOC_COMMIT_ATOMIC_WRITE    _IO(F2FS_IOCTL_MAGIC, 2)
-#define F2FS_IOC_START_VOLATILE_WRITE   _IO(F2FS_IOCTL_MAGIC, 3)
-#define F2FS_IOC_ABORT_VOLATILE_WRITE   _IO(F2FS_IOCTL_MAGIC, 5)
-#define F2FS_IOC_GET_FEATURES           _IOR(F2FS_IOCTL_MAGIC, 12, u32)
-#define F2FS_FEATURE_ATOMIC_WRITE 0x0004
-#endif /* __linux__ */
-
-
-/*
-** Different Unix systems declare open() in different ways.  Same use
-** open(const char*,int,mode_t).  Others use open(const char*,int,...).
-** The difference is important when using a pointer to the function.
-**
-** The safest way to deal with the problem is to always use this wrapper
-** which always has the same well-defined interface.
-*/
-static int posixOpen(const char *zFile, int flags, int mode){
-  return open(zFile, flags, mode);
-}
-
-/* Forward reference */
-static int openDirectory(const char*, int*);
-static int unixGetpagesize(void);
-
-/*
-** Many system calls are accessed through pointer-to-functions so that
-** they may be overridden at runtime to facilitate fault injection during
-** testing and sandboxing.  The following array holds the names and pointers
-** to all overrideable system calls.
-*/
-static struct unix_syscall {
-  const char *zName;            /* Name of the system call */
-  tdsqlite3_syscall_ptr pCurrent; /* Current value of the system call */
-  tdsqlite3_syscall_ptr pDefault; /* Default value */
-} aSyscall[] = {
-  { "open",         (tdsqlite3_syscall_ptr)posixOpen,  0  },
-#define osOpen      ((int(*)(const char*,int,int))aSyscall[0].pCurrent)
-
-  { "close",        (tdsqlite3_syscall_ptr)close,      0  },
-#define osClose     ((int(*)(int))aSyscall[1].pCurrent)
-
-  { "access",       (tdsqlite3_syscall_ptr)access,     0  },
-#define osAccess    ((int(*)(const char*,int))aSyscall[2].pCurrent)
-
-  { "getcwd",       (tdsqlite3_syscall_ptr)getcwd,     0  },
-#define osGetcwd    ((char*(*)(char*,size_t))aSyscall[3].pCurrent)
-
-  { "stat",         (tdsqlite3_syscall_ptr)stat,       0  },
-#define osStat      ((int(*)(const char*,struct stat*))aSyscall[4].pCurrent)
-
-/*
-** The DJGPP compiler environment looks mostly like Unix, but it
-** lacks the fcntl() system call.  So redefine fcntl() to be something
-** that always succeeds.  This means that locking does not occur under
-** DJGPP.  But it is DOS - what did you expect?
-*/
-#ifdef __DJGPP__
-  { "fstat",        0,                 0  },
-#define osFstat(a,b,c)    0
-#else     
-  { "fstat",        (tdsqlite3_syscall_ptr)fstat,      0  },
-#define osFstat     ((int(*)(int,struct stat*))aSyscall[5].pCurrent)
-#endif
-
-  { "ftruncate",    (tdsqlite3_syscall_ptr)ftruncate,  0  },
-#define osFtruncate ((int(*)(int,off_t))aSyscall[6].pCurrent)
-
-  { "fcntl",        (tdsqlite3_syscall_ptr)fcntl,      0  },
-#define osFcntl     ((int(*)(int,int,...))aSyscall[7].pCurrent)
-
-  { "read",         (tdsqlite3_syscall_ptr)read,       0  },
-#define osRead      ((ssize_t(*)(int,void*,size_t))aSyscall[8].pCurrent)
-
-#if defined(USE_PREAD) || SQLITE_ENABLE_LOCKING_STYLE
-  { "pread",        (tdsqlite3_syscall_ptr)pread,      0  },
-#else
-  { "pread",        (tdsqlite3_syscall_ptr)0,          0  },
-#endif
-#define osPread     ((ssize_t(*)(int,void*,size_t,off_t))aSyscall[9].pCurrent)
-
-#if defined(USE_PREAD64)
-  { "pread64",      (tdsqlite3_syscall_ptr)pread64,    0  },
-#else
-  { "pread64",      (tdsqlite3_syscall_ptr)0,          0  },
-#endif
-#define osPread64 ((ssize_t(*)(int,void*,size_t,off64_t))aSyscall[10].pCurrent)
-
-  { "write",        (tdsqlite3_syscall_ptr)write,      0  },
-#define osWrite     ((ssize_t(*)(int,const void*,size_t))aSyscall[11].pCurrent)
-
-#if defined(USE_PREAD) || SQLITE_ENABLE_LOCKING_STYLE
-  { "pwrite",       (tdsqlite3_syscall_ptr)pwrite,     0  },
-#else
-  { "pwrite",       (tdsqlite3_syscall_ptr)0,          0  },
-#endif
-#define osPwrite    ((ssize_t(*)(int,const void*,size_t,off_t))\
-                    aSyscall[12].pCurrent)
-
-#if defined(USE_PREAD64)
-  { "pwrite64",     (tdsqlite3_syscall_ptr)pwrite64,   0  },
-#else
-  { "pwrite64",     (tdsqlite3_syscall_ptr)0,          0  },
-#endif
-#define osPwrite64  ((ssize_t(*)(int,const void*,size_t,off64_t))\
-                    aSyscall[13].pCurrent)
-
-  { "fchmod",       (tdsqlite3_syscall_ptr)fchmod,          0  },
-#define osFchmod    ((int(*)(int,mode_t))aSyscall[14].pCurrent)
-
-#if defined(HAVE_POSIX_FALLOCATE) && HAVE_POSIX_FALLOCATE
-  { "fallocate",    (tdsqlite3_syscall_ptr)posix_fallocate,  0 },
-#else
-  { "fallocate",    (tdsqlite3_syscall_ptr)0,                0 },
-#endif
-#define osFallocate ((int(*)(int,off_t,off_t))aSyscall[15].pCurrent)
-
-  { "unlink",       (tdsqlite3_syscall_ptr)unlink,           0 },
-#define osUnlink    ((int(*)(const char*))aSyscall[16].pCurrent)
-
-  { "openDirectory",    (tdsqlite3_syscall_ptr)openDirectory,      0 },
-#define osOpenDirectory ((int(*)(const char*,int*))aSyscall[17].pCurrent)
-
-  { "mkdir",        (tdsqlite3_syscall_ptr)mkdir,           0 },
-#define osMkdir     ((int(*)(const char*,mode_t))aSyscall[18].pCurrent)
-
-  { "rmdir",        (tdsqlite3_syscall_ptr)rmdir,           0 },
-#define osRmdir     ((int(*)(const char*))aSyscall[19].pCurrent)
-
-#if defined(HAVE_FCHOWN)
-  { "fchown",       (tdsqlite3_syscall_ptr)fchown,          0 },
-#else
-  { "fchown",       (tdsqlite3_syscall_ptr)0,               0 },
-#endif
-#define osFchown    ((int(*)(int,uid_t,gid_t))aSyscall[20].pCurrent)
-
-#if defined(HAVE_FCHOWN)
-  { "geteuid",      (tdsqlite3_syscall_ptr)geteuid,         0 },
-#else
-  { "geteuid",      (tdsqlite3_syscall_ptr)0,               0 },
-#endif
-#define osGeteuid   ((uid_t(*)(void))aSyscall[21].pCurrent)
-
-#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
-  { "mmap",         (tdsqlite3_syscall_ptr)mmap,            0 },
-#else
-  { "mmap",         (tdsqlite3_syscall_ptr)0,               0 },
-#endif
-#define osMmap ((void*(*)(void*,size_t,int,int,int,off_t))aSyscall[22].pCurrent)
-
-#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
-  { "munmap",       (tdsqlite3_syscall_ptr)munmap,          0 },
-#else
-  { "munmap",       (tdsqlite3_syscall_ptr)0,               0 },
-#endif
-#define osMunmap ((int(*)(void*,size_t))aSyscall[23].pCurrent)
-
-#if HAVE_MREMAP && (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0)
-  { "mremap",       (tdsqlite3_syscall_ptr)mremap,          0 },
-#else
-  { "mremap",       (tdsqlite3_syscall_ptr)0,               0 },
-#endif
-#define osMremap ((void*(*)(void*,size_t,size_t,int,...))aSyscall[24].pCurrent)
-
-#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
-  { "getpagesize",  (tdsqlite3_syscall_ptr)unixGetpagesize, 0 },
-#else
-  { "getpagesize",  (tdsqlite3_syscall_ptr)0,               0 },
-#endif
-#define osGetpagesize ((int(*)(void))aSyscall[25].pCurrent)
-
-#if defined(HAVE_READLINK)
-  { "readlink",     (tdsqlite3_syscall_ptr)readlink,        0 },
-#else
-  { "readlink",     (tdsqlite3_syscall_ptr)0,               0 },
-#endif
-#define osReadlink ((ssize_t(*)(const char*,char*,size_t))aSyscall[26].pCurrent)
-
-#if defined(HAVE_LSTAT)
-  { "lstat",         (tdsqlite3_syscall_ptr)lstat,          0 },
-#else
-  { "lstat",         (tdsqlite3_syscall_ptr)0,              0 },
-#endif
-#define osLstat      ((int(*)(const char*,struct stat*))aSyscall[27].pCurrent)
-
-#if defined(__linux__) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
-# ifdef __ANDROID__
-  { "ioctl", (tdsqlite3_syscall_ptr)(int(*)(int, int, ...))ioctl, 0 },
-#define osIoctl ((int(*)(int,int,...))aSyscall[28].pCurrent)
-# else
-  { "ioctl",         (tdsqlite3_syscall_ptr)ioctl,          0 },
-#define osIoctl ((int(*)(int,unsigned long,...))aSyscall[28].pCurrent)
-# endif
-#else
-  { "ioctl",         (tdsqlite3_syscall_ptr)0,              0 },
-#endif
-
-}; /* End of the overrideable system calls */
-
-
-/*
-** On some systems, calls to fchown() will trigger a message in a security
-** log if they come from non-root processes.  So avoid calling fchown() if
-** we are not running as root.
-*/
-static int robustFchown(int fd, uid_t uid, gid_t gid){
-#if defined(HAVE_FCHOWN)
-  return osGeteuid() ? 0 : osFchown(fd,uid,gid);
-#else
-  return 0;
-#endif
-}
-
-/*
-** This is the xSetSystemCall() method of tdsqlite3_vfs for all of the
-** "unix" VFSes.  Return SQLITE_OK opon successfully updating the
-** system call pointer, or SQLITE_NOTFOUND if there is no configurable
-** system call named zName.
-*/
-static int unixSetSystemCall(
-  tdsqlite3_vfs *pNotUsed,        /* The VFS pointer.  Not used */
-  const char *zName,            /* Name of system call to override */
-  tdsqlite3_syscall_ptr pNewFunc  /* Pointer to new system call value */
-){
-  unsigned int i;
-  int rc = SQLITE_NOTFOUND;
-
-  UNUSED_PARAMETER(pNotUsed);
-  if( zName==0 ){
-    /* If no zName is given, restore all system calls to their default
-    ** settings and return NULL
-    */
-    rc = SQLITE_OK;
-    for(i=0; i<sizeof(aSyscall)/sizeof(aSyscall[0]); i++){
-      if( aSyscall[i].pDefault ){
-        aSyscall[i].pCurrent = aSyscall[i].pDefault;
-      }
-    }
-  }else{
-    /* If zName is specified, operate on only the one system call
-    ** specified.
-    */
-    for(i=0; i<sizeof(aSyscall)/sizeof(aSyscall[0]); i++){
-      if( strcmp(zName, aSyscall[i].zName)==0 ){
-        if( aSyscall[i].pDefault==0 ){
-          aSyscall[i].pDefault = aSyscall[i].pCurrent;
-        }
-        rc = SQLITE_OK;
-        if( pNewFunc==0 ) pNewFunc = aSyscall[i].pDefault;
-        aSyscall[i].pCurrent = pNewFunc;
-        break;
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** Return the value of a system call.  Return NULL if zName is not a
-** recognized system call name.  NULL is also returned if the system call
-** is currently undefined.
-*/
-static tdsqlite3_syscall_ptr unixGetSystemCall(
-  tdsqlite3_vfs *pNotUsed,
-  const char *zName
-){
-  unsigned int i;
-
-  UNUSED_PARAMETER(pNotUsed);
-  for(i=0; i<sizeof(aSyscall)/sizeof(aSyscall[0]); i++){
-    if( strcmp(zName, aSyscall[i].zName)==0 ) return aSyscall[i].pCurrent;
-  }
-  return 0;
-}
-
-/*
-** Return the name of the first system call after zName.  If zName==NULL
-** then return the name of the first system call.  Return NULL if zName
-** is the last system call or if zName is not the name of a valid
-** system call.
-*/
-static const char *unixNextSystemCall(tdsqlite3_vfs *p, const char *zName){
-  int i = -1;
-
-  UNUSED_PARAMETER(p);
-  if( zName ){
-    for(i=0; i<ArraySize(aSyscall)-1; i++){
-      if( strcmp(zName, aSyscall[i].zName)==0 ) break;
-    }
-  }
-  for(i++; i<ArraySize(aSyscall); i++){
-    if( aSyscall[i].pCurrent!=0 ) return aSyscall[i].zName;
-  }
-  return 0;
-}
-
-/*
-** Do not accept any file descriptor less than this value, in order to avoid
-** opening database file using file descriptors that are commonly used for 
-** standard input, output, and error.
-*/
-#ifndef SQLITE_MINIMUM_FILE_DESCRIPTOR
-# define SQLITE_MINIMUM_FILE_DESCRIPTOR 3
-#endif
-
-/*
-** Invoke open().  Do so multiple times, until it either succeeds or
-** fails for some reason other than EINTR.
-**
-** If the file creation mode "m" is 0 then set it to the default for
-** SQLite.  The default is SQLITE_DEFAULT_FILE_PERMISSIONS (normally
-** 0644) as modified by the system umask.  If m is not 0, then
-** make the file creation mode be exactly m ignoring the umask.
-**
-** The m parameter will be non-zero only when creating -wal, -journal,
-** and -shm files.  We want those files to have *exactly* the same
-** permissions as their original database, unadulterated by the umask.
-** In that way, if a database file is -rw-rw-rw or -rw-rw-r-, and a
-** transaction crashes and leaves behind hot journals, then any
-** process that is able to write to the database will also be able to
-** recover the hot journals.
-*/
-static int robust_open(const char *z, int f, mode_t m){
-  int fd;
-  mode_t m2 = m ? m : SQLITE_DEFAULT_FILE_PERMISSIONS;
-  while(1){
-#if defined(O_CLOEXEC)
-    fd = osOpen(z,f|O_CLOEXEC,m2);
-#else
-    fd = osOpen(z,f,m2);
-#endif
-    if( fd<0 ){
-      if( errno==EINTR ) continue;
-      break;
-    }
-    if( fd>=SQLITE_MINIMUM_FILE_DESCRIPTOR ) break;
-    osClose(fd);
-    tdsqlite3_log(SQLITE_WARNING, 
-                "attempt to open \"%s\" as file descriptor %d", z, fd);
-    fd = -1;
-    if( osOpen("/dev/null", f, m)<0 ) break;
-  }
-  if( fd>=0 ){
-    if( m!=0 ){
-      struct stat statbuf;
-      if( osFstat(fd, &statbuf)==0 
-       && statbuf.st_size==0
-       && (statbuf.st_mode&0777)!=m 
-      ){
-        osFchmod(fd, m);
-      }
-    }
-#if defined(FD_CLOEXEC) && (!defined(O_CLOEXEC) || O_CLOEXEC==0)
-    osFcntl(fd, F_SETFD, osFcntl(fd, F_GETFD, 0) | FD_CLOEXEC);
-#endif
-  }
-  return fd;
-}
-
-/*
-** Helper functions to obtain and relinquish the global mutex. The
-** global mutex is used to protect the unixInodeInfo and
-** vxworksFileId objects used by this file, all of which may be 
-** shared by multiple threads.
-**
-** Function unixMutexHeld() is used to assert() that the global mutex 
-** is held when required. This function is only used as part of assert() 
-** statements. e.g.
-**
-**   unixEnterMutex()
-**     assert( unixMutexHeld() );
-**   unixEnterLeave()
-**
-** To prevent deadlock, the global unixBigLock must must be acquired
-** before the unixInodeInfo.pLockMutex mutex, if both are held.  It is
-** OK to get the pLockMutex without holding unixBigLock first, but if
-** that happens, the unixBigLock mutex must not be acquired until after
-** pLockMutex is released.
-**
-**      OK:     enter(unixBigLock),  enter(pLockInfo)
-**      OK:     enter(unixBigLock)
-**      OK:     enter(pLockInfo)
-**   ERROR:     enter(pLockInfo), enter(unixBigLock)
-*/
-static tdsqlite3_mutex *unixBigLock = 0;
-static void unixEnterMutex(void){
-  assert( tdsqlite3_mutex_notheld(unixBigLock) );  /* Not a recursive mutex */
-  tdsqlite3_mutex_enter(unixBigLock);
-}
-static void unixLeaveMutex(void){
-  assert( tdsqlite3_mutex_held(unixBigLock) );
-  tdsqlite3_mutex_leave(unixBigLock);
-}
-#ifdef SQLITE_DEBUG
-static int unixMutexHeld(void) {
-  return tdsqlite3_mutex_held(unixBigLock);
-}
-#endif
-
-
-#ifdef SQLITE_HAVE_OS_TRACE
-/*
-** Helper function for printing out trace information from debugging
-** binaries. This returns the string representation of the supplied
-** integer lock-type.
-*/
-static const char *azFileLock(int eFileLock){
-  switch( eFileLock ){
-    case NO_LOCK: return "NONE";
-    case SHARED_LOCK: return "SHARED";
-    case RESERVED_LOCK: return "RESERVED";
-    case PENDING_LOCK: return "PENDING";
-    case EXCLUSIVE_LOCK: return "EXCLUSIVE";
-  }
-  return "ERROR";
-}
-#endif
-
-#ifdef SQLITE_LOCK_TRACE
-/*
-** Print out information about all locking operations.
-**
-** This routine is used for troubleshooting locks on multithreaded
-** platforms.  Enable by compiling with the -DSQLITE_LOCK_TRACE
-** command-line option on the compiler.  This code is normally
-** turned off.
-*/
-static int lockTrace(int fd, int op, struct flock *p){
-  char *zOpName, *zType;
-  int s;
-  int savedErrno;
-  if( op==F_GETLK ){
-    zOpName = "GETLK";
-  }else if( op==F_SETLK ){
-    zOpName = "SETLK";
-  }else{
-    s = osFcntl(fd, op, p);
-    tdsqlite3DebugPrintf("fcntl unknown %d %d %d\n", fd, op, s);
-    return s;
-  }
-  if( p->l_type==F_RDLCK ){
-    zType = "RDLCK";
-  }else if( p->l_type==F_WRLCK ){
-    zType = "WRLCK";
-  }else if( p->l_type==F_UNLCK ){
-    zType = "UNLCK";
-  }else{
-    assert( 0 );
-  }
-  assert( p->l_whence==SEEK_SET );
-  s = osFcntl(fd, op, p);
-  savedErrno = errno;
-  tdsqlite3DebugPrintf("fcntl %d %d %s %s %d %d %d %d\n",
-     threadid, fd, zOpName, zType, (int)p->l_start, (int)p->l_len,
-     (int)p->l_pid, s);
-  if( s==(-1) && op==F_SETLK && (p->l_type==F_RDLCK || p->l_type==F_WRLCK) ){
-    struct flock l2;
-    l2 = *p;
-    osFcntl(fd, F_GETLK, &l2);
-    if( l2.l_type==F_RDLCK ){
-      zType = "RDLCK";
-    }else if( l2.l_type==F_WRLCK ){
-      zType = "WRLCK";
-    }else if( l2.l_type==F_UNLCK ){
-      zType = "UNLCK";
-    }else{
-      assert( 0 );
-    }
-    tdsqlite3DebugPrintf("fcntl-failure-reason: %s %d %d %d\n",
-       zType, (int)l2.l_start, (int)l2.l_len, (int)l2.l_pid);
-  }
-  errno = savedErrno;
-  return s;
-}
-#undef osFcntl
-#define osFcntl lockTrace
-#endif /* SQLITE_LOCK_TRACE */
-
-/*
-** Retry ftruncate() calls that fail due to EINTR
-**
-** All calls to ftruncate() within this file should be made through
-** this wrapper.  On the Android platform, bypassing the logic below
-** could lead to a corrupt database.
-*/
-static int robust_ftruncate(int h, tdsqlite3_int64 sz){
-  int rc;
-#ifdef __ANDROID__
-  /* On Android, ftruncate() always uses 32-bit offsets, even if 
-  ** _FILE_OFFSET_BITS=64 is defined. This means it is unsafe to attempt to
-  ** truncate a file to any size larger than 2GiB. Silently ignore any
-  ** such attempts.  */
-  if( sz>(tdsqlite3_int64)0x7FFFFFFF ){
-    rc = SQLITE_OK;
-  }else
-#endif
-  do{ rc = osFtruncate(h,sz); }while( rc<0 && errno==EINTR );
-  return rc;
-}
-
-/*
-** This routine translates a standard POSIX errno code into something
-** useful to the clients of the tdsqlite3 functions.  Specifically, it is
-** intended to translate a variety of "try again" errors into SQLITE_BUSY
-** and a variety of "please close the file descriptor NOW" errors into 
-** SQLITE_IOERR
-** 
-** Errors during initialization of locks, or file system support for locks,
-** should handle ENOLCK, ENOTSUP, EOPNOTSUPP separately.
-*/
-static int sqliteErrorFromPosixError(int posixError, int sqliteIOErr) {
-  assert( (sqliteIOErr == SQLITE_IOERR_LOCK) || 
-          (sqliteIOErr == SQLITE_IOERR_UNLOCK) || 
-          (sqliteIOErr == SQLITE_IOERR_RDLOCK) ||
-          (sqliteIOErr == SQLITE_IOERR_CHECKRESERVEDLOCK) );
-  switch (posixError) {
-  case EACCES: 
-  case EAGAIN:
-  case ETIMEDOUT:
-  case EBUSY:
-  case EINTR:
-  case ENOLCK:  
-    /* random NFS retry error, unless during file system support 
-     * introspection, in which it actually means what it says */
-    return SQLITE_BUSY;
-    
-  case EPERM: 
-    return SQLITE_PERM;
-    
-  default: 
-    return sqliteIOErr;
-  }
-}
-
-
-/******************************************************************************
-****************** Begin Unique File ID Utility Used By VxWorks ***************
-**
-** On most versions of unix, we can get a unique ID for a file by concatenating
-** the device number and the inode number.  But this does not work on VxWorks.
-** On VxWorks, a unique file id must be based on the canonical filename.
-**
-** A pointer to an instance of the following structure can be used as a
-** unique file ID in VxWorks.  Each instance of this structure contains
-** a copy of the canonical filename.  There is also a reference count.  
-** The structure is reclaimed when the number of pointers to it drops to
-** zero.
-**
-** There are never very many files open at one time and lookups are not
-** a performance-critical path, so it is sufficient to put these
-** structures on a linked list.
-*/
-struct vxworksFileId {
-  struct vxworksFileId *pNext;  /* Next in a list of them all */
-  int nRef;                     /* Number of references to this one */
-  int nName;                    /* Length of the zCanonicalName[] string */
-  char *zCanonicalName;         /* Canonical filename */
-};
-
-#if OS_VXWORKS
-/* 
-** All unique filenames are held on a linked list headed by this
-** variable:
-*/
-static struct vxworksFileId *vxworksFileList = 0;
-
-/*
-** Simplify a filename into its canonical form
-** by making the following changes:
-**
-**  * removing any trailing and duplicate /
-**  * convert /./ into just /
-**  * convert /A/../ where A is any simple name into just /
-**
-** Changes are made in-place.  Return the new name length.
-**
-** The original filename is in z[0..n-1].  Return the number of
-** characters in the simplified name.
-*/
-static int vxworksSimplifyName(char *z, int n){
-  int i, j;
-  while( n>1 && z[n-1]=='/' ){ n--; }
-  for(i=j=0; i<n; i++){
-    if( z[i]=='/' ){
-      if( z[i+1]=='/' ) continue;
-      if( z[i+1]=='.' && i+2<n && z[i+2]=='/' ){
-        i += 1;
-        continue;
-      }
-      if( z[i+1]=='.' && i+3<n && z[i+2]=='.' && z[i+3]=='/' ){
-        while( j>0 && z[j-1]!='/' ){ j--; }
-        if( j>0 ){ j--; }
-        i += 2;
-        continue;
-      }
-    }
-    z[j++] = z[i];
-  }
-  z[j] = 0;
-  return j;
-}
-
-/*
-** Find a unique file ID for the given absolute pathname.  Return
-** a pointer to the vxworksFileId object.  This pointer is the unique
-** file ID.
-**
-** The nRef field of the vxworksFileId object is incremented before
-** the object is returned.  A new vxworksFileId object is created
-** and added to the global list if necessary.
-**
-** If a memory allocation error occurs, return NULL.
-*/
-static struct vxworksFileId *vxworksFindFileId(const char *zAbsoluteName){
-  struct vxworksFileId *pNew;         /* search key and new file ID */
-  struct vxworksFileId *pCandidate;   /* For looping over existing file IDs */
-  int n;                              /* Length of zAbsoluteName string */
-
-  assert( zAbsoluteName[0]=='/' );
-  n = (int)strlen(zAbsoluteName);
-  pNew = tdsqlite3_malloc64( sizeof(*pNew) + (n+1) );
-  if( pNew==0 ) return 0;
-  pNew->zCanonicalName = (char*)&pNew[1];
-  memcpy(pNew->zCanonicalName, zAbsoluteName, n+1);
-  n = vxworksSimplifyName(pNew->zCanonicalName, n);
-
-  /* Search for an existing entry that matching the canonical name.
-  ** If found, increment the reference count and return a pointer to
-  ** the existing file ID.
-  */
-  unixEnterMutex();
-  for(pCandidate=vxworksFileList; pCandidate; pCandidate=pCandidate->pNext){
-    if( pCandidate->nName==n 
-     && memcmp(pCandidate->zCanonicalName, pNew->zCanonicalName, n)==0
-    ){
-       tdsqlite3_free(pNew);
-       pCandidate->nRef++;
-       unixLeaveMutex();
-       return pCandidate;
-    }
-  }
-
-  /* No match was found.  We will make a new file ID */
-  pNew->nRef = 1;
-  pNew->nName = n;
-  pNew->pNext = vxworksFileList;
-  vxworksFileList = pNew;
-  unixLeaveMutex();
-  return pNew;
-}
-
-/*
-** Decrement the reference count on a vxworksFileId object.  Free
-** the object when the reference count reaches zero.
-*/
-static void vxworksReleaseFileId(struct vxworksFileId *pId){
-  unixEnterMutex();
-  assert( pId->nRef>0 );
-  pId->nRef--;
-  if( pId->nRef==0 ){
-    struct vxworksFileId **pp;
-    for(pp=&vxworksFileList; *pp && *pp!=pId; pp = &((*pp)->pNext)){}
-    assert( *pp==pId );
-    *pp = pId->pNext;
-    tdsqlite3_free(pId);
-  }
-  unixLeaveMutex();
-}
-#endif /* OS_VXWORKS */
-/*************** End of Unique File ID Utility Used By VxWorks ****************
-******************************************************************************/
-
-
-/******************************************************************************
-*************************** Posix Advisory Locking ****************************
-**
-** POSIX advisory locks are broken by design.  ANSI STD 1003.1 (1996)
-** section 6.5.2.2 lines 483 through 490 specify that when a process
-** sets or clears a lock, that operation overrides any prior locks set
-** by the same process.  It does not explicitly say so, but this implies
-** that it overrides locks set by the same process using a different
-** file descriptor.  Consider this test case:
-**
-**       int fd1 = open("./file1", O_RDWR|O_CREAT, 0644);
-**       int fd2 = open("./file2", O_RDWR|O_CREAT, 0644);
-**
-** Suppose ./file1 and ./file2 are really the same file (because
-** one is a hard or symbolic link to the other) then if you set
-** an exclusive lock on fd1, then try to get an exclusive lock
-** on fd2, it works.  I would have expected the second lock to
-** fail since there was already a lock on the file due to fd1.
-** But not so.  Since both locks came from the same process, the
-** second overrides the first, even though they were on different
-** file descriptors opened on different file names.
-**
-** This means that we cannot use POSIX locks to synchronize file access
-** among competing threads of the same process.  POSIX locks will work fine
-** to synchronize access for threads in separate processes, but not
-** threads within the same process.
-**
-** To work around the problem, SQLite has to manage file locks internally
-** on its own.  Whenever a new database is opened, we have to find the
-** specific inode of the database file (the inode is determined by the
-** st_dev and st_ino fields of the stat structure that fstat() fills in)
-** and check for locks already existing on that inode.  When locks are
-** created or removed, we have to look at our own internal record of the
-** locks to see if another thread has previously set a lock on that same
-** inode.
-**
-** (Aside: The use of inode numbers as unique IDs does not work on VxWorks.
-** For VxWorks, we have to use the alternative unique ID system based on
-** canonical filename and implemented in the previous division.)
-**
-** The tdsqlite3_file structure for POSIX is no longer just an integer file
-** descriptor.  It is now a structure that holds the integer file
-** descriptor and a pointer to a structure that describes the internal
-** locks on the corresponding inode.  There is one locking structure
-** per inode, so if the same inode is opened twice, both unixFile structures
-** point to the same locking structure.  The locking structure keeps
-** a reference count (so we will know when to delete it) and a "cnt"
-** field that tells us its internal lock status.  cnt==0 means the
-** file is unlocked.  cnt==-1 means the file has an exclusive lock.
-** cnt>0 means there are cnt shared locks on the file.
-**
-** Any attempt to lock or unlock a file first checks the locking
-** structure.  The fcntl() system call is only invoked to set a 
-** POSIX lock if the internal lock structure transitions between
-** a locked and an unlocked state.
-**
-** But wait:  there are yet more problems with POSIX advisory locks.
-**
-** If you close a file descriptor that points to a file that has locks,
-** all locks on that file that are owned by the current process are
-** released.  To work around this problem, each unixInodeInfo object
-** maintains a count of the number of pending locks on tha inode.
-** When an attempt is made to close an unixFile, if there are
-** other unixFile open on the same inode that are holding locks, the call
-** to close() the file descriptor is deferred until all of the locks clear.
-** The unixInodeInfo structure keeps a list of file descriptors that need to
-** be closed and that list is walked (and cleared) when the last lock
-** clears.
-**
-** Yet another problem:  LinuxThreads do not play well with posix locks.
-**
-** Many older versions of linux use the LinuxThreads library which is
-** not posix compliant.  Under LinuxThreads, a lock created by thread
-** A cannot be modified or overridden by a different thread B.
-** Only thread A can modify the lock.  Locking behavior is correct
-** if the appliation uses the newer Native Posix Thread Library (NPTL)
-** on linux - with NPTL a lock created by thread A can override locks
-** in thread B.  But there is no way to know at compile-time which
-** threading library is being used.  So there is no way to know at
-** compile-time whether or not thread A can override locks on thread B.
-** One has to do a run-time check to discover the behavior of the
-** current process.
-**
-** SQLite used to support LinuxThreads.  But support for LinuxThreads
-** was dropped beginning with version 3.7.0.  SQLite will still work with
-** LinuxThreads provided that (1) there is no more than one connection 
-** per database file in the same process and (2) database connections
-** do not move across threads.
-*/
-
-/*
-** An instance of the following structure serves as the key used
-** to locate a particular unixInodeInfo object.
-*/
-struct unixFileId {
-  dev_t dev;                  /* Device number */
-#if OS_VXWORKS
-  struct vxworksFileId *pId;  /* Unique file ID for vxworks. */
-#else
-  /* We are told that some versions of Android contain a bug that
-  ** sizes ino_t at only 32-bits instead of 64-bits. (See
-  ** https://android-review.googlesource.com/#/c/115351/3/dist/sqlite3.c)
-  ** To work around this, always allocate 64-bits for the inode number.  
-  ** On small machines that only have 32-bit inodes, this wastes 4 bytes,
-  ** but that should not be a big deal. */
-  /* WAS:  ino_t ino;   */
-  u64 ino;                   /* Inode number */
-#endif
-};
-
-/*
-** An instance of the following structure is allocated for each open
-** inode.
-**
-** A single inode can have multiple file descriptors, so each unixFile
-** structure contains a pointer to an instance of this object and this
-** object keeps a count of the number of unixFile pointing to it.
-**
-** Mutex rules:
-**
-**  (1) Only the pLockMutex mutex must be held in order to read or write
-**      any of the locking fields:
-**          nShared, nLock, eFileLock, bProcessLock, pUnused
-**
-**  (2) When nRef>0, then the following fields are unchanging and can
-**      be read (but not written) without holding any mutex:
-**          fileId, pLockMutex
-**
-**  (3) With the exceptions above, all the fields may only be read
-**      or written while holding the global unixBigLock mutex.
-**
-** Deadlock prevention:  The global unixBigLock mutex may not
-** be acquired while holding the pLockMutex mutex.  If both unixBigLock
-** and pLockMutex are needed, then unixBigLock must be acquired first.
-*/
-struct unixInodeInfo {
-  struct unixFileId fileId;       /* The lookup key */
-  tdsqlite3_mutex *pLockMutex;      /* Hold this mutex for... */
-  int nShared;                      /* Number of SHARED locks held */
-  int nLock;                        /* Number of outstanding file locks */
-  unsigned char eFileLock;          /* One of SHARED_LOCK, RESERVED_LOCK etc. */
-  unsigned char bProcessLock;       /* An exclusive process lock is held */
-  UnixUnusedFd *pUnused;            /* Unused file descriptors to close */
-  int nRef;                       /* Number of pointers to this structure */
-  unixShmNode *pShmNode;          /* Shared memory associated with this inode */
-  unixInodeInfo *pNext;           /* List of all unixInodeInfo objects */
-  unixInodeInfo *pPrev;           /*    .... doubly linked */
-#if SQLITE_ENABLE_LOCKING_STYLE
-  unsigned long long sharedByte;  /* for AFP simulated shared lock */
-#endif
-#if OS_VXWORKS
-  sem_t *pSem;                    /* Named POSIX semaphore */
-  char aSemName[MAX_PATHNAME+2];  /* Name of that semaphore */
-#endif
-};
-
-/*
-** A lists of all unixInodeInfo objects.
-**
-** Must hold unixBigLock in order to read or write this variable.
-*/
-static unixInodeInfo *inodeList = 0;  /* All unixInodeInfo objects */
-
-#ifdef SQLITE_DEBUG
-/*
-** True if the inode mutex (on the unixFile.pFileMutex field) is held, or not.
-** This routine is used only within assert() to help verify correct mutex
-** usage.
-*/
-int unixFileMutexHeld(unixFile *pFile){
-  assert( pFile->pInode );
-  return tdsqlite3_mutex_held(pFile->pInode->pLockMutex);
-}
-int unixFileMutexNotheld(unixFile *pFile){
-  assert( pFile->pInode );
-  return tdsqlite3_mutex_notheld(pFile->pInode->pLockMutex);
-}
-#endif
-
-/*
-**
-** This function - unixLogErrorAtLine(), is only ever called via the macro
-** unixLogError().
-**
-** It is invoked after an error occurs in an OS function and errno has been
-** set. It logs a message using tdsqlite3_log() containing the current value of
-** errno and, if possible, the human-readable equivalent from strerror() or
-** strerror_r().
-**
-** The first argument passed to the macro should be the error code that
-** will be returned to SQLite (e.g. SQLITE_IOERR_DELETE, SQLITE_CANTOPEN). 
-** The two subsequent arguments should be the name of the OS function that
-** failed (e.g. "unlink", "open") and the associated file-system path,
-** if any.
-*/
-#define unixLogError(a,b,c)     unixLogErrorAtLine(a,b,c,__LINE__)
-static int unixLogErrorAtLine(
-  int errcode,                    /* SQLite error code */
-  const char *zFunc,              /* Name of OS function that failed */
-  const char *zPath,              /* File path associated with error */
-  int iLine                       /* Source line number where error occurred */
-){
-  char *zErr;                     /* Message from strerror() or equivalent */
-  int iErrno = errno;             /* Saved syscall error number */
-
-  /* If this is not a threadsafe build (SQLITE_THREADSAFE==0), then use
-  ** the strerror() function to obtain the human-readable error message
-  ** equivalent to errno. Otherwise, use strerror_r().
-  */ 
-#if SQLITE_THREADSAFE && defined(HAVE_STRERROR_R)
-  char aErr[80];
-  memset(aErr, 0, sizeof(aErr));
-  zErr = aErr;
-
-  /* If STRERROR_R_CHAR_P (set by autoconf scripts) or __USE_GNU is defined,
-  ** assume that the system provides the GNU version of strerror_r() that
-  ** returns a pointer to a buffer containing the error message. That pointer 
-  ** may point to aErr[], or it may point to some static storage somewhere. 
-  ** Otherwise, assume that the system provides the POSIX version of 
-  ** strerror_r(), which always writes an error message into aErr[].
-  **
-  ** If the code incorrectly assumes that it is the POSIX version that is
-  ** available, the error message will often be an empty string. Not a
-  ** huge problem. Incorrectly concluding that the GNU version is available 
-  ** could lead to a segfault though.
-  */
-#if defined(STRERROR_R_CHAR_P) || defined(__USE_GNU)
-  zErr = 
-# endif
-  strerror_r(iErrno, aErr, sizeof(aErr)-1);
-
-#elif SQLITE_THREADSAFE
-  /* This is a threadsafe build, but strerror_r() is not available. */
-  zErr = "";
-#else
-  /* Non-threadsafe build, use strerror(). */
-  zErr = strerror(iErrno);
-#endif
-
-  if( zPath==0 ) zPath = "";
-  tdsqlite3_log(errcode,
-      "os_unix.c:%d: (%d) %s(%s) - %s",
-      iLine, iErrno, zFunc, zPath, zErr
-  );
-
-  return errcode;
-}
-
-/*
-** Close a file descriptor.
-**
-** We assume that close() almost always works, since it is only in a
-** very sick application or on a very sick platform that it might fail.
-** If it does fail, simply leak the file descriptor, but do log the
-** error.
-**
-** Note that it is not safe to retry close() after EINTR since the
-** file descriptor might have already been reused by another thread.
-** So we don't even try to recover from an EINTR.  Just log the error
-** and move on.
-*/
-static void robust_close(unixFile *pFile, int h, int lineno){
-  if( osClose(h) ){
-    unixLogErrorAtLine(SQLITE_IOERR_CLOSE, "close",
-                       pFile ? pFile->zPath : 0, lineno);
-  }
-}
-
-/*
-** Set the pFile->lastErrno.  Do this in a subroutine as that provides
-** a convenient place to set a breakpoint.
-*/
-static void storeLastErrno(unixFile *pFile, int error){
-  pFile->lastErrno = error;
-}
-
-/*
-** Close all file descriptors accumuated in the unixInodeInfo->pUnused list.
-*/ 
-static void closePendingFds(unixFile *pFile){
-  unixInodeInfo *pInode = pFile->pInode;
-  UnixUnusedFd *p;
-  UnixUnusedFd *pNext;
-  assert( unixFileMutexHeld(pFile) );
-  for(p=pInode->pUnused; p; p=pNext){
-    pNext = p->pNext;
-    robust_close(pFile, p->fd, __LINE__);
-    tdsqlite3_free(p);
-  }
-  pInode->pUnused = 0;
-}
-
-/*
-** Release a unixInodeInfo structure previously allocated by findInodeInfo().
-**
-** The global mutex must be held when this routine is called, but the mutex
-** on the inode being deleted must NOT be held.
-*/
-static void releaseInodeInfo(unixFile *pFile){
-  unixInodeInfo *pInode = pFile->pInode;
-  assert( unixMutexHeld() );
-  assert( unixFileMutexNotheld(pFile) );
-  if( ALWAYS(pInode) ){
-    pInode->nRef--;
-    if( pInode->nRef==0 ){
-      assert( pInode->pShmNode==0 );
-      tdsqlite3_mutex_enter(pInode->pLockMutex);
-      closePendingFds(pFile);
-      tdsqlite3_mutex_leave(pInode->pLockMutex);
-      if( pInode->pPrev ){
-        assert( pInode->pPrev->pNext==pInode );
-        pInode->pPrev->pNext = pInode->pNext;
-      }else{
-        assert( inodeList==pInode );
-        inodeList = pInode->pNext;
-      }
-      if( pInode->pNext ){
-        assert( pInode->pNext->pPrev==pInode );
-        pInode->pNext->pPrev = pInode->pPrev;
-      }
-      tdsqlite3_mutex_free(pInode->pLockMutex);
-      tdsqlite3_free(pInode);
-    }
-  }
-}
-
-/*
-** Given a file descriptor, locate the unixInodeInfo object that
-** describes that file descriptor.  Create a new one if necessary.  The
-** return value might be uninitialized if an error occurs.
-**
-** The global mutex must held when calling this routine.
-**
-** Return an appropriate error code.
-*/
-static int findInodeInfo(
-  unixFile *pFile,               /* Unix file with file desc used in the key */
-  unixInodeInfo **ppInode        /* Return the unixInodeInfo object here */
-){
-  int rc;                        /* System call return code */
-  int fd;                        /* The file descriptor for pFile */
-  struct unixFileId fileId;      /* Lookup key for the unixInodeInfo */
-  struct stat statbuf;           /* Low-level file information */
-  unixInodeInfo *pInode = 0;     /* Candidate unixInodeInfo object */
-
-  assert( unixMutexHeld() );
-
-  /* Get low-level information about the file that we can used to
-  ** create a unique name for the file.
-  */
-  fd = pFile->h;
-  rc = osFstat(fd, &statbuf);
-  if( rc!=0 ){
-    storeLastErrno(pFile, errno);
-#if defined(EOVERFLOW) && defined(SQLITE_DISABLE_LFS)
-    if( pFile->lastErrno==EOVERFLOW ) return SQLITE_NOLFS;
-#endif
-    return SQLITE_IOERR;
-  }
-
-#ifdef __APPLE__
-  /* On OS X on an msdos filesystem, the inode number is reported
-  ** incorrectly for zero-size files.  See ticket #3260.  To work
-  ** around this problem (we consider it a bug in OS X, not SQLite)
-  ** we always increase the file size to 1 by writing a single byte
-  ** prior to accessing the inode number.  The one byte written is
-  ** an ASCII 'S' character which also happens to be the first byte
-  ** in the header of every SQLite database.  In this way, if there
-  ** is a race condition such that another thread has already populated
-  ** the first page of the database, no damage is done.
-  */
-  if( statbuf.st_size==0 && (pFile->fsFlags & SQLITE_FSFLAGS_IS_MSDOS)!=0 ){
-    do{ rc = osWrite(fd, "S", 1); }while( rc<0 && errno==EINTR );
-    if( rc!=1 ){
-      storeLastErrno(pFile, errno);
-      return SQLITE_IOERR;
-    }
-    rc = osFstat(fd, &statbuf);
-    if( rc!=0 ){
-      storeLastErrno(pFile, errno);
-      return SQLITE_IOERR;
-    }
-  }
-#endif
-
-  memset(&fileId, 0, sizeof(fileId));
-  fileId.dev = statbuf.st_dev;
-#if OS_VXWORKS
-  fileId.pId = pFile->pId;
-#else
-  fileId.ino = (u64)statbuf.st_ino;
-#endif
-  assert( unixMutexHeld() );
-  pInode = inodeList;
-  while( pInode && memcmp(&fileId, &pInode->fileId, sizeof(fileId)) ){
-    pInode = pInode->pNext;
-  }
-  if( pInode==0 ){
-    pInode = tdsqlite3_malloc64( sizeof(*pInode) );
-    if( pInode==0 ){
-      return SQLITE_NOMEM_BKPT;
-    }
-    memset(pInode, 0, sizeof(*pInode));
-    memcpy(&pInode->fileId, &fileId, sizeof(fileId));
-    if( tdsqlite3GlobalConfig.bCoreMutex ){
-      pInode->pLockMutex = tdsqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
-      if( pInode->pLockMutex==0 ){
-        tdsqlite3_free(pInode);
-        return SQLITE_NOMEM_BKPT;
-      }
-    }
-    pInode->nRef = 1;
-    assert( unixMutexHeld() );
-    pInode->pNext = inodeList;
-    pInode->pPrev = 0;
-    if( inodeList ) inodeList->pPrev = pInode;
-    inodeList = pInode;
-  }else{
-    pInode->nRef++;
-  }
-  *ppInode = pInode;
-  return SQLITE_OK;
-}
-
-/*
-** Return TRUE if pFile has been renamed or unlinked since it was first opened.
-*/
-static int fileHasMoved(unixFile *pFile){
-#if OS_VXWORKS
-  return pFile->pInode!=0 && pFile->pId!=pFile->pInode->fileId.pId;
-#else
-  struct stat buf;
-  return pFile->pInode!=0 &&
-      (osStat(pFile->zPath, &buf)!=0 
-         || (u64)buf.st_ino!=pFile->pInode->fileId.ino);
-#endif
-}
-
-
-/*
-** Check a unixFile that is a database.  Verify the following:
-**
-** (1) There is exactly one hard link on the file
-** (2) The file is not a symbolic link
-** (3) The file has not been renamed or unlinked
-**
-** Issue tdsqlite3_log(SQLITE_WARNING,...) messages if anything is not right.
-*/
-static void verifyDbFile(unixFile *pFile){
-  struct stat buf;
-  int rc;
-
-  /* These verifications occurs for the main database only */
-  if( pFile->ctrlFlags & UNIXFILE_NOLOCK ) return;
-
-  rc = osFstat(pFile->h, &buf);
-  if( rc!=0 ){
-    tdsqlite3_log(SQLITE_WARNING, "cannot fstat db file %s", pFile->zPath);
-    return;
-  }
-  if( buf.st_nlink==0 ){
-    tdsqlite3_log(SQLITE_WARNING, "file unlinked while open: %s", pFile->zPath);
-    return;
-  }
-  if( buf.st_nlink>1 ){
-    tdsqlite3_log(SQLITE_WARNING, "multiple links to file: %s", pFile->zPath);
-    return;
-  }
-  if( fileHasMoved(pFile) ){
-    tdsqlite3_log(SQLITE_WARNING, "file renamed while open: %s", pFile->zPath);
-    return;
-  }
-}
-
-
-/*
-** This routine checks if there is a RESERVED lock held on the specified
-** file by this or any other process. If such a lock is held, set *pResOut
-** to a non-zero value otherwise *pResOut is set to zero.  The return value
-** is set to SQLITE_OK unless an I/O error occurs during lock checking.
-*/
-static int unixCheckReservedLock(tdsqlite3_file *id, int *pResOut){
-  int rc = SQLITE_OK;
-  int reserved = 0;
-  unixFile *pFile = (unixFile*)id;
-
-  SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
-
-  assert( pFile );
-  assert( pFile->eFileLock<=SHARED_LOCK );
-  tdsqlite3_mutex_enter(pFile->pInode->pLockMutex);
-
-  /* Check if a thread in this process holds such a lock */
-  if( pFile->pInode->eFileLock>SHARED_LOCK ){
-    reserved = 1;
-  }
-
-  /* Otherwise see if some other process holds it.
-  */
-#ifndef __DJGPP__
-  if( !reserved && !pFile->pInode->bProcessLock ){
-    struct flock lock;
-    lock.l_whence = SEEK_SET;
-    lock.l_start = RESERVED_BYTE;
-    lock.l_len = 1;
-    lock.l_type = F_WRLCK;
-    if( osFcntl(pFile->h, F_GETLK, &lock) ){
-      rc = SQLITE_IOERR_CHECKRESERVEDLOCK;
-      storeLastErrno(pFile, errno);
-    } else if( lock.l_type!=F_UNLCK ){
-      reserved = 1;
-    }
-  }
-#endif
-  
-  tdsqlite3_mutex_leave(pFile->pInode->pLockMutex);
-  OSTRACE(("TEST WR-LOCK %d %d %d (unix)\n", pFile->h, rc, reserved));
-
-  *pResOut = reserved;
-  return rc;
-}
-
-/*
-** Set a posix-advisory-lock.
-**
-** There are two versions of this routine.  If compiled with
-** SQLITE_ENABLE_SETLK_TIMEOUT then the routine has an extra parameter
-** which is a pointer to a unixFile.  If the unixFile->iBusyTimeout
-** value is set, then it is the number of milliseconds to wait before
-** failing the lock.  The iBusyTimeout value is always reset back to
-** zero on each call.
-**
-** If SQLITE_ENABLE_SETLK_TIMEOUT is not defined, then do a non-blocking
-** attempt to set the lock.
-*/
-#ifndef SQLITE_ENABLE_SETLK_TIMEOUT
-# define osSetPosixAdvisoryLock(h,x,t) osFcntl(h,F_SETLK,x)
-#else
-static int osSetPosixAdvisoryLock(
-  int h,                /* The file descriptor on which to take the lock */
-  struct flock *pLock,  /* The description of the lock */
-  unixFile *pFile       /* Structure holding timeout value */
-){
-  int rc = osFcntl(h,F_SETLK,pLock);
-  while( rc<0 && pFile->iBusyTimeout>0 ){
-    /* On systems that support some kind of blocking file lock with a timeout,
-    ** make appropriate changes here to invoke that blocking file lock.  On
-    ** generic posix, however, there is no such API.  So we simply try the
-    ** lock once every millisecond until either the timeout expires, or until
-    ** the lock is obtained. */
-    usleep(1000);
-    rc = osFcntl(h,F_SETLK,pLock);
-    pFile->iBusyTimeout--;
-  }
-  return rc;
-}
-#endif /* SQLITE_ENABLE_SETLK_TIMEOUT */
-
-
-/*
-** Attempt to set a system-lock on the file pFile.  The lock is 
-** described by pLock.
-**
-** If the pFile was opened read/write from unix-excl, then the only lock
-** ever obtained is an exclusive lock, and it is obtained exactly once
-** the first time any lock is attempted.  All subsequent system locking
-** operations become no-ops.  Locking operations still happen internally,
-** in order to coordinate access between separate database connections
-** within this process, but all of that is handled in memory and the
-** operating system does not participate.
-**
-** This function is a pass-through to fcntl(F_SETLK) if pFile is using
-** any VFS other than "unix-excl" or if pFile is opened on "unix-excl"
-** and is read-only.
-**
-** Zero is returned if the call completes successfully, or -1 if a call
-** to fcntl() fails. In this case, errno is set appropriately (by fcntl()).
-*/
-static int unixFileLock(unixFile *pFile, struct flock *pLock){
-  int rc;
-  unixInodeInfo *pInode = pFile->pInode;
-  assert( pInode!=0 );
-  assert( tdsqlite3_mutex_held(pInode->pLockMutex) );
-  if( (pFile->ctrlFlags & (UNIXFILE_EXCL|UNIXFILE_RDONLY))==UNIXFILE_EXCL ){
-    if( pInode->bProcessLock==0 ){
-      struct flock lock;
-      assert( pInode->nLock==0 );
-      lock.l_whence = SEEK_SET;
-      lock.l_start = SHARED_FIRST;
-      lock.l_len = SHARED_SIZE;
-      lock.l_type = F_WRLCK;
-      rc = osSetPosixAdvisoryLock(pFile->h, &lock, pFile);
-      if( rc<0 ) return rc;
-      pInode->bProcessLock = 1;
-      pInode->nLock++;
-    }else{
-      rc = 0;
-    }
-  }else{
-    rc = osSetPosixAdvisoryLock(pFile->h, pLock, pFile);
-  }
-  return rc;
-}
-
-/*
-** Lock the file with the lock specified by parameter eFileLock - one
-** of the following:
-**
-**     (1) SHARED_LOCK
-**     (2) RESERVED_LOCK
-**     (3) PENDING_LOCK
-**     (4) EXCLUSIVE_LOCK
-**
-** Sometimes when requesting one lock state, additional lock states
-** are inserted in between.  The locking might fail on one of the later
-** transitions leaving the lock state different from what it started but
-** still short of its goal.  The following chart shows the allowed
-** transitions and the inserted intermediate states:
-**
-**    UNLOCKED -> SHARED
-**    SHARED -> RESERVED
-**    SHARED -> (PENDING) -> EXCLUSIVE
-**    RESERVED -> (PENDING) -> EXCLUSIVE
-**    PENDING -> EXCLUSIVE
-**
-** This routine will only increase a lock.  Use the tdsqlite3OsUnlock()
-** routine to lower a locking level.
-*/
-static int unixLock(tdsqlite3_file *id, int eFileLock){
-  /* The following describes the implementation of the various locks and
-  ** lock transitions in terms of the POSIX advisory shared and exclusive
-  ** lock primitives (called read-locks and write-locks below, to avoid
-  ** confusion with SQLite lock names). The algorithms are complicated
-  ** slightly in order to be compatible with Windows95 systems simultaneously
-  ** accessing the same database file, in case that is ever required.
-  **
-  ** Symbols defined in os.h indentify the 'pending byte' and the 'reserved
-  ** byte', each single bytes at well known offsets, and the 'shared byte
-  ** range', a range of 510 bytes at a well known offset.
-  **
-  ** To obtain a SHARED lock, a read-lock is obtained on the 'pending
-  ** byte'.  If this is successful, 'shared byte range' is read-locked
-  ** and the lock on the 'pending byte' released.  (Legacy note:  When
-  ** SQLite was first developed, Windows95 systems were still very common,
-  ** and Widnows95 lacks a shared-lock capability.  So on Windows95, a
-  ** single randomly selected by from the 'shared byte range' is locked.
-  ** Windows95 is now pretty much extinct, but this work-around for the
-  ** lack of shared-locks on Windows95 lives on, for backwards
-  ** compatibility.)
-  **
-  ** A process may only obtain a RESERVED lock after it has a SHARED lock.
-  ** A RESERVED lock is implemented by grabbing a write-lock on the
-  ** 'reserved byte'. 
-  **
-  ** A process may only obtain a PENDING lock after it has obtained a
-  ** SHARED lock. A PENDING lock is implemented by obtaining a write-lock
-  ** on the 'pending byte'. This ensures that no new SHARED locks can be
-  ** obtained, but existing SHARED locks are allowed to persist. A process
-  ** does not have to obtain a RESERVED lock on the way to a PENDING lock.
-  ** This property is used by the algorithm for rolling back a journal file
-  ** after a crash.
-  **
-  ** An EXCLUSIVE lock, obtained after a PENDING lock is held, is
-  ** implemented by obtaining a write-lock on the entire 'shared byte
-  ** range'. Since all other locks require a read-lock on one of the bytes
-  ** within this range, this ensures that no other locks are held on the
-  ** database. 
-  */
-  int rc = SQLITE_OK;
-  unixFile *pFile = (unixFile*)id;
-  unixInodeInfo *pInode;
-  struct flock lock;
-  int tErrno = 0;
-
-  assert( pFile );
-  OSTRACE(("LOCK    %d %s was %s(%s,%d) pid=%d (unix)\n", pFile->h,
-      azFileLock(eFileLock), azFileLock(pFile->eFileLock),
-      azFileLock(pFile->pInode->eFileLock), pFile->pInode->nShared,
-      osGetpid(0)));
-
-  /* If there is already a lock of this type or more restrictive on the
-  ** unixFile, do nothing. Don't use the end_lock: exit path, as
-  ** unixEnterMutex() hasn't been called yet.
-  */
-  if( pFile->eFileLock>=eFileLock ){
-    OSTRACE(("LOCK    %d %s ok (already held) (unix)\n", pFile->h,
-            azFileLock(eFileLock)));
-    return SQLITE_OK;
-  }
-
-  /* Make sure the locking sequence is correct.
-  **  (1) We never move from unlocked to anything higher than shared lock.
-  **  (2) SQLite never explicitly requests a pendig lock.
-  **  (3) A shared lock is always held when a reserve lock is requested.
-  */
-  assert( pFile->eFileLock!=NO_LOCK || eFileLock==SHARED_LOCK );
-  assert( eFileLock!=PENDING_LOCK );
-  assert( eFileLock!=RESERVED_LOCK || pFile->eFileLock==SHARED_LOCK );
-
-  /* This mutex is needed because pFile->pInode is shared across threads
-  */
-  pInode = pFile->pInode;
-  tdsqlite3_mutex_enter(pInode->pLockMutex);
-
-  /* If some thread using this PID has a lock via a different unixFile*
-  ** handle that precludes the requested lock, return BUSY.
-  */
-  if( (pFile->eFileLock!=pInode->eFileLock && 
-          (pInode->eFileLock>=PENDING_LOCK || eFileLock>SHARED_LOCK))
-  ){
-    rc = SQLITE_BUSY;
-    goto end_lock;
-  }
-
-  /* If a SHARED lock is requested, and some thread using this PID already
-  ** has a SHARED or RESERVED lock, then increment reference counts and
-  ** return SQLITE_OK.
-  */
-  if( eFileLock==SHARED_LOCK && 
-      (pInode->eFileLock==SHARED_LOCK || pInode->eFileLock==RESERVED_LOCK) ){
-    assert( eFileLock==SHARED_LOCK );
-    assert( pFile->eFileLock==0 );
-    assert( pInode->nShared>0 );
-    pFile->eFileLock = SHARED_LOCK;
-    pInode->nShared++;
-    pInode->nLock++;
-    goto end_lock;
-  }
-
-
-  /* A PENDING lock is needed before acquiring a SHARED lock and before
-  ** acquiring an EXCLUSIVE lock.  For the SHARED lock, the PENDING will
-  ** be released.
-  */
-  lock.l_len = 1L;
-  lock.l_whence = SEEK_SET;
-  if( eFileLock==SHARED_LOCK 
-      || (eFileLock==EXCLUSIVE_LOCK && pFile->eFileLock<PENDING_LOCK)
-  ){
-    lock.l_type = (eFileLock==SHARED_LOCK?F_RDLCK:F_WRLCK);
-    lock.l_start = PENDING_BYTE;
-    if( unixFileLock(pFile, &lock) ){
-      tErrno = errno;
-      rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
-      if( rc!=SQLITE_BUSY ){
-        storeLastErrno(pFile, tErrno);
-      }
-      goto end_lock;
-    }
-  }
-
-
-  /* If control gets to this point, then actually go ahead and make
-  ** operating system calls for the specified lock.
-  */
-  if( eFileLock==SHARED_LOCK ){
-    assert( pInode->nShared==0 );
-    assert( pInode->eFileLock==0 );
-    assert( rc==SQLITE_OK );
-
-    /* Now get the read-lock */
-    lock.l_start = SHARED_FIRST;
-    lock.l_len = SHARED_SIZE;
-    if( unixFileLock(pFile, &lock) ){
-      tErrno = errno;
-      rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
-    }
-
-    /* Drop the temporary PENDING lock */
-    lock.l_start = PENDING_BYTE;
-    lock.l_len = 1L;
-    lock.l_type = F_UNLCK;
-    if( unixFileLock(pFile, &lock) && rc==SQLITE_OK ){
-      /* This could happen with a network mount */
-      tErrno = errno;
-      rc = SQLITE_IOERR_UNLOCK; 
-    }
-
-    if( rc ){
-      if( rc!=SQLITE_BUSY ){
-        storeLastErrno(pFile, tErrno);
-      }
-      goto end_lock;
-    }else{
-      pFile->eFileLock = SHARED_LOCK;
-      pInode->nLock++;
-      pInode->nShared = 1;
-    }
-  }else if( eFileLock==EXCLUSIVE_LOCK && pInode->nShared>1 ){
-    /* We are trying for an exclusive lock but another thread in this
-    ** same process is still holding a shared lock. */
-    rc = SQLITE_BUSY;
-  }else{
-    /* The request was for a RESERVED or EXCLUSIVE lock.  It is
-    ** assumed that there is a SHARED or greater lock on the file
-    ** already.
-    */
-    assert( 0!=pFile->eFileLock );
-    lock.l_type = F_WRLCK;
-
-    assert( eFileLock==RESERVED_LOCK || eFileLock==EXCLUSIVE_LOCK );
-    if( eFileLock==RESERVED_LOCK ){
-      lock.l_start = RESERVED_BYTE;
-      lock.l_len = 1L;
-    }else{
-      lock.l_start = SHARED_FIRST;
-      lock.l_len = SHARED_SIZE;
-    }
-
-    if( unixFileLock(pFile, &lock) ){
-      tErrno = errno;
-      rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
-      if( rc!=SQLITE_BUSY ){
-        storeLastErrno(pFile, tErrno);
-      }
-    }
-  }
-  
-
-#ifdef SQLITE_DEBUG
-  /* Set up the transaction-counter change checking flags when
-  ** transitioning from a SHARED to a RESERVED lock.  The change
-  ** from SHARED to RESERVED marks the beginning of a normal
-  ** write operation (not a hot journal rollback).
-  */
-  if( rc==SQLITE_OK
-   && pFile->eFileLock<=SHARED_LOCK
-   && eFileLock==RESERVED_LOCK
-  ){
-    pFile->transCntrChng = 0;
-    pFile->dbUpdate = 0;
-    pFile->inNormalWrite = 1;
-  }
-#endif
-
-
-  if( rc==SQLITE_OK ){
-    pFile->eFileLock = eFileLock;
-    pInode->eFileLock = eFileLock;
-  }else if( eFileLock==EXCLUSIVE_LOCK ){
-    pFile->eFileLock = PENDING_LOCK;
-    pInode->eFileLock = PENDING_LOCK;
-  }
-
-end_lock:
-  tdsqlite3_mutex_leave(pInode->pLockMutex);
-  OSTRACE(("LOCK    %d %s %s (unix)\n", pFile->h, azFileLock(eFileLock), 
-      rc==SQLITE_OK ? "ok" : "failed"));
-  return rc;
-}
-
-/*
-** Add the file descriptor used by file handle pFile to the corresponding
-** pUnused list.
-*/
-static void setPendingFd(unixFile *pFile){
-  unixInodeInfo *pInode = pFile->pInode;
-  UnixUnusedFd *p = pFile->pPreallocatedUnused;
-  assert( unixFileMutexHeld(pFile) );
-  p->pNext = pInode->pUnused;
-  pInode->pUnused = p;
-  pFile->h = -1;
-  pFile->pPreallocatedUnused = 0;
-}
-
-/*
-** Lower the locking level on file descriptor pFile to eFileLock.  eFileLock
-** must be either NO_LOCK or SHARED_LOCK.
-**
-** If the locking level of the file descriptor is already at or below
-** the requested locking level, this routine is a no-op.
-** 
-** If handleNFSUnlock is true, then on downgrading an EXCLUSIVE_LOCK to SHARED
-** the byte range is divided into 2 parts and the first part is unlocked then
-** set to a read lock, then the other part is simply unlocked.  This works 
-** around a bug in BSD NFS lockd (also seen on MacOSX 10.3+) that fails to 
-** remove the write lock on a region when a read lock is set.
-*/
-static int posixUnlock(tdsqlite3_file *id, int eFileLock, int handleNFSUnlock){
-  unixFile *pFile = (unixFile*)id;
-  unixInodeInfo *pInode;
-  struct flock lock;
-  int rc = SQLITE_OK;
-
-  assert( pFile );
-  OSTRACE(("UNLOCK  %d %d was %d(%d,%d) pid=%d (unix)\n", pFile->h, eFileLock,
-      pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared,
-      osGetpid(0)));
-
-  assert( eFileLock<=SHARED_LOCK );
-  if( pFile->eFileLock<=eFileLock ){
-    return SQLITE_OK;
-  }
-  pInode = pFile->pInode;
-  tdsqlite3_mutex_enter(pInode->pLockMutex);
-  assert( pInode->nShared!=0 );
-  if( pFile->eFileLock>SHARED_LOCK ){
-    assert( pInode->eFileLock==pFile->eFileLock );
-
-#ifdef SQLITE_DEBUG
-    /* When reducing a lock such that other processes can start
-    ** reading the database file again, make sure that the
-    ** transaction counter was updated if any part of the database
-    ** file changed.  If the transaction counter is not updated,
-    ** other connections to the same file might not realize that
-    ** the file has changed and hence might not know to flush their
-    ** cache.  The use of a stale cache can lead to database corruption.
-    */
-    pFile->inNormalWrite = 0;
-#endif
-
-    /* downgrading to a shared lock on NFS involves clearing the write lock
-    ** before establishing the readlock - to avoid a race condition we downgrade
-    ** the lock in 2 blocks, so that part of the range will be covered by a 
-    ** write lock until the rest is covered by a read lock:
-    **  1:   [WWWWW]
-    **  2:   [....W]
-    **  3:   [RRRRW]
-    **  4:   [RRRR.]
-    */
-    if( eFileLock==SHARED_LOCK ){
-#if !defined(__APPLE__) || !SQLITE_ENABLE_LOCKING_STYLE
-      (void)handleNFSUnlock;
-      assert( handleNFSUnlock==0 );
-#endif
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-      if( handleNFSUnlock ){
-        int tErrno;               /* Error code from system call errors */
-        off_t divSize = SHARED_SIZE - 1;
-        
-        lock.l_type = F_UNLCK;
-        lock.l_whence = SEEK_SET;
-        lock.l_start = SHARED_FIRST;
-        lock.l_len = divSize;
-        if( unixFileLock(pFile, &lock)==(-1) ){
-          tErrno = errno;
-          rc = SQLITE_IOERR_UNLOCK;
-          storeLastErrno(pFile, tErrno);
-          goto end_unlock;
-        }
-        lock.l_type = F_RDLCK;
-        lock.l_whence = SEEK_SET;
-        lock.l_start = SHARED_FIRST;
-        lock.l_len = divSize;
-        if( unixFileLock(pFile, &lock)==(-1) ){
-          tErrno = errno;
-          rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_RDLOCK);
-          if( IS_LOCK_ERROR(rc) ){
-            storeLastErrno(pFile, tErrno);
-          }
-          goto end_unlock;
-        }
-        lock.l_type = F_UNLCK;
-        lock.l_whence = SEEK_SET;
-        lock.l_start = SHARED_FIRST+divSize;
-        lock.l_len = SHARED_SIZE-divSize;
-        if( unixFileLock(pFile, &lock)==(-1) ){
-          tErrno = errno;
-          rc = SQLITE_IOERR_UNLOCK;
-          storeLastErrno(pFile, tErrno);
-          goto end_unlock;
-        }
-      }else
-#endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */
-      {
-        lock.l_type = F_RDLCK;
-        lock.l_whence = SEEK_SET;
-        lock.l_start = SHARED_FIRST;
-        lock.l_len = SHARED_SIZE;
-        if( unixFileLock(pFile, &lock) ){
-          /* In theory, the call to unixFileLock() cannot fail because another
-          ** process is holding an incompatible lock. If it does, this 
-          ** indicates that the other process is not following the locking
-          ** protocol. If this happens, return SQLITE_IOERR_RDLOCK. Returning
-          ** SQLITE_BUSY would confuse the upper layer (in practice it causes 
-          ** an assert to fail). */ 
-          rc = SQLITE_IOERR_RDLOCK;
-          storeLastErrno(pFile, errno);
-          goto end_unlock;
-        }
-      }
-    }
-    lock.l_type = F_UNLCK;
-    lock.l_whence = SEEK_SET;
-    lock.l_start = PENDING_BYTE;
-    lock.l_len = 2L;  assert( PENDING_BYTE+1==RESERVED_BYTE );
-    if( unixFileLock(pFile, &lock)==0 ){
-      pInode->eFileLock = SHARED_LOCK;
-    }else{
-      rc = SQLITE_IOERR_UNLOCK;
-      storeLastErrno(pFile, errno);
-      goto end_unlock;
-    }
-  }
-  if( eFileLock==NO_LOCK ){
-    /* Decrement the shared lock counter.  Release the lock using an
-    ** OS call only when all threads in this same process have released
-    ** the lock.
-    */
-    pInode->nShared--;
-    if( pInode->nShared==0 ){
-      lock.l_type = F_UNLCK;
-      lock.l_whence = SEEK_SET;
-      lock.l_start = lock.l_len = 0L;
-      if( unixFileLock(pFile, &lock)==0 ){
-        pInode->eFileLock = NO_LOCK;
-      }else{
-        rc = SQLITE_IOERR_UNLOCK;
-        storeLastErrno(pFile, errno);
-        pInode->eFileLock = NO_LOCK;
-        pFile->eFileLock = NO_LOCK;
-      }
-    }
-
-    /* Decrement the count of locks against this same file.  When the
-    ** count reaches zero, close any other file descriptors whose close
-    ** was deferred because of outstanding locks.
-    */
-    pInode->nLock--;
-    assert( pInode->nLock>=0 );
-    if( pInode->nLock==0 ) closePendingFds(pFile);
-  }
-
-end_unlock:
-  tdsqlite3_mutex_leave(pInode->pLockMutex);
-  if( rc==SQLITE_OK ){
-    pFile->eFileLock = eFileLock;
-  }
-  return rc;
-}
-
-/*
-** Lower the locking level on file descriptor pFile to eFileLock.  eFileLock
-** must be either NO_LOCK or SHARED_LOCK.
-**
-** If the locking level of the file descriptor is already at or below
-** the requested locking level, this routine is a no-op.
-*/
-static int unixUnlock(tdsqlite3_file *id, int eFileLock){
-#if SQLITE_MAX_MMAP_SIZE>0
-  assert( eFileLock==SHARED_LOCK || ((unixFile *)id)->nFetchOut==0 );
-#endif
-  return posixUnlock(id, eFileLock, 0);
-}
-
-#if SQLITE_MAX_MMAP_SIZE>0
-static int unixMapfile(unixFile *pFd, i64 nByte);
-static void unixUnmapfile(unixFile *pFd);
-#endif
-
-/*
-** This function performs the parts of the "close file" operation 
-** common to all locking schemes. It closes the directory and file
-** handles, if they are valid, and sets all fields of the unixFile
-** structure to 0.
-**
-** It is *not* necessary to hold the mutex when this routine is called,
-** even on VxWorks.  A mutex will be acquired on VxWorks by the
-** vxworksReleaseFileId() routine.
-*/
-static int closeUnixFile(tdsqlite3_file *id){
-  unixFile *pFile = (unixFile*)id;
-#if SQLITE_MAX_MMAP_SIZE>0
-  unixUnmapfile(pFile);
-#endif
-  if( pFile->h>=0 ){
-    robust_close(pFile, pFile->h, __LINE__);
-    pFile->h = -1;
-  }
-#if OS_VXWORKS
-  if( pFile->pId ){
-    if( pFile->ctrlFlags & UNIXFILE_DELETE ){
-      osUnlink(pFile->pId->zCanonicalName);
-    }
-    vxworksReleaseFileId(pFile->pId);
-    pFile->pId = 0;
-  }
-#endif
-#ifdef SQLITE_UNLINK_AFTER_CLOSE
-  if( pFile->ctrlFlags & UNIXFILE_DELETE ){
-    osUnlink(pFile->zPath);
-    tdsqlite3_free(*(char**)&pFile->zPath);
-    pFile->zPath = 0;
-  }
-#endif
-  OSTRACE(("CLOSE   %-3d\n", pFile->h));
-  OpenCounter(-1);
-  tdsqlite3_free(pFile->pPreallocatedUnused);
-  memset(pFile, 0, sizeof(unixFile));
-  return SQLITE_OK;
-}
-
-/*
-** Close a file.
-*/
-static int unixClose(tdsqlite3_file *id){
-  int rc = SQLITE_OK;
-  unixFile *pFile = (unixFile *)id;
-  unixInodeInfo *pInode = pFile->pInode;
-
-  assert( pInode!=0 );
-  verifyDbFile(pFile);
-  unixUnlock(id, NO_LOCK);
-  assert( unixFileMutexNotheld(pFile) );
-  unixEnterMutex();
-
-  /* unixFile.pInode is always valid here. Otherwise, a different close
-  ** routine (e.g. nolockClose()) would be called instead.
-  */
-  assert( pFile->pInode->nLock>0 || pFile->pInode->bProcessLock==0 );
-  tdsqlite3_mutex_enter(pInode->pLockMutex);
-  if( pInode->nLock ){
-    /* If there are outstanding locks, do not actually close the file just
-    ** yet because that would clear those locks.  Instead, add the file
-    ** descriptor to pInode->pUnused list.  It will be automatically closed 
-    ** when the last lock is cleared.
-    */
-    setPendingFd(pFile);
-  }
-  tdsqlite3_mutex_leave(pInode->pLockMutex);
-  releaseInodeInfo(pFile);
-  rc = closeUnixFile(id);
-  unixLeaveMutex();
-  return rc;
-}
-
-/************** End of the posix advisory lock implementation *****************
-******************************************************************************/
-
-/******************************************************************************
-****************************** No-op Locking **********************************
-**
-** Of the various locking implementations available, this is by far the
-** simplest:  locking is ignored.  No attempt is made to lock the database
-** file for reading or writing.
-**
-** This locking mode is appropriate for use on read-only databases
-** (ex: databases that are burned into CD-ROM, for example.)  It can
-** also be used if the application employs some external mechanism to
-** prevent simultaneous access of the same database by two or more
-** database connections.  But there is a serious risk of database
-** corruption if this locking mode is used in situations where multiple
-** database connections are accessing the same database file at the same
-** time and one or more of those connections are writing.
-*/
-
-static int nolockCheckReservedLock(tdsqlite3_file *NotUsed, int *pResOut){
-  UNUSED_PARAMETER(NotUsed);
-  *pResOut = 0;
-  return SQLITE_OK;
-}
-static int nolockLock(tdsqlite3_file *NotUsed, int NotUsed2){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  return SQLITE_OK;
-}
-static int nolockUnlock(tdsqlite3_file *NotUsed, int NotUsed2){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  return SQLITE_OK;
-}
-
-/*
-** Close the file.
-*/
-static int nolockClose(tdsqlite3_file *id) {
-  return closeUnixFile(id);
-}
-
-/******************* End of the no-op lock implementation *********************
-******************************************************************************/
-
-/******************************************************************************
-************************* Begin dot-file Locking ******************************
-**
-** The dotfile locking implementation uses the existence of separate lock
-** files (really a directory) to control access to the database.  This works
-** on just about every filesystem imaginable.  But there are serious downsides:
-**
-**    (1)  There is zero concurrency.  A single reader blocks all other
-**         connections from reading or writing the database.
-**
-**    (2)  An application crash or power loss can leave stale lock files
-**         sitting around that need to be cleared manually.
-**
-** Nevertheless, a dotlock is an appropriate locking mode for use if no
-** other locking strategy is available.
-**
-** Dotfile locking works by creating a subdirectory in the same directory as
-** the database and with the same name but with a ".lock" extension added.
-** The existence of a lock directory implies an EXCLUSIVE lock.  All other
-** lock types (SHARED, RESERVED, PENDING) are mapped into EXCLUSIVE.
-*/
-
-/*
-** The file suffix added to the data base filename in order to create the
-** lock directory.
-*/
-#define DOTLOCK_SUFFIX ".lock"
-
-/*
-** This routine checks if there is a RESERVED lock held on the specified
-** file by this or any other process. If such a lock is held, set *pResOut
-** to a non-zero value otherwise *pResOut is set to zero.  The return value
-** is set to SQLITE_OK unless an I/O error occurs during lock checking.
-**
-** In dotfile locking, either a lock exists or it does not.  So in this
-** variation of CheckReservedLock(), *pResOut is set to true if any lock
-** is held on the file and false if the file is unlocked.
-*/
-static int dotlockCheckReservedLock(tdsqlite3_file *id, int *pResOut) {
-  int rc = SQLITE_OK;
-  int reserved = 0;
-  unixFile *pFile = (unixFile*)id;
-
-  SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
-  
-  assert( pFile );
-  reserved = osAccess((const char*)pFile->lockingContext, 0)==0;
-  OSTRACE(("TEST WR-LOCK %d %d %d (dotlock)\n", pFile->h, rc, reserved));
-  *pResOut = reserved;
-  return rc;
-}
-
-/*
-** Lock the file with the lock specified by parameter eFileLock - one
-** of the following:
-**
-**     (1) SHARED_LOCK
-**     (2) RESERVED_LOCK
-**     (3) PENDING_LOCK
-**     (4) EXCLUSIVE_LOCK
-**
-** Sometimes when requesting one lock state, additional lock states
-** are inserted in between.  The locking might fail on one of the later
-** transitions leaving the lock state different from what it started but
-** still short of its goal.  The following chart shows the allowed
-** transitions and the inserted intermediate states:
-**
-**    UNLOCKED -> SHARED
-**    SHARED -> RESERVED
-**    SHARED -> (PENDING) -> EXCLUSIVE
-**    RESERVED -> (PENDING) -> EXCLUSIVE
-**    PENDING -> EXCLUSIVE
-**
-** This routine will only increase a lock.  Use the tdsqlite3OsUnlock()
-** routine to lower a locking level.
-**
-** With dotfile locking, we really only support state (4): EXCLUSIVE.
-** But we track the other locking levels internally.
-*/
-static int dotlockLock(tdsqlite3_file *id, int eFileLock) {
-  unixFile *pFile = (unixFile*)id;
-  char *zLockFile = (char *)pFile->lockingContext;
-  int rc = SQLITE_OK;
-
-
-  /* If we have any lock, then the lock file already exists.  All we have
-  ** to do is adjust our internal record of the lock level.
-  */
-  if( pFile->eFileLock > NO_LOCK ){
-    pFile->eFileLock = eFileLock;
-    /* Always update the timestamp on the old file */
-#ifdef HAVE_UTIME
-    utime(zLockFile, NULL);
-#else
-    utimes(zLockFile, NULL);
-#endif
-    return SQLITE_OK;
-  }
-  
-  /* grab an exclusive lock */
-  rc = osMkdir(zLockFile, 0777);
-  if( rc<0 ){
-    /* failed to open/create the lock directory */
-    int tErrno = errno;
-    if( EEXIST == tErrno ){
-      rc = SQLITE_BUSY;
-    } else {
-      rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
-      if( rc!=SQLITE_BUSY ){
-        storeLastErrno(pFile, tErrno);
-      }
-    }
-    return rc;
-  } 
-  
-  /* got it, set the type and return ok */
-  pFile->eFileLock = eFileLock;
-  return rc;
-}
-
-/*
-** Lower the locking level on file descriptor pFile to eFileLock.  eFileLock
-** must be either NO_LOCK or SHARED_LOCK.
-**
-** If the locking level of the file descriptor is already at or below
-** the requested locking level, this routine is a no-op.
-**
-** When the locking level reaches NO_LOCK, delete the lock file.
-*/
-static int dotlockUnlock(tdsqlite3_file *id, int eFileLock) {
-  unixFile *pFile = (unixFile*)id;
-  char *zLockFile = (char *)pFile->lockingContext;
-  int rc;
-
-  assert( pFile );
-  OSTRACE(("UNLOCK  %d %d was %d pid=%d (dotlock)\n", pFile->h, eFileLock,
-           pFile->eFileLock, osGetpid(0)));
-  assert( eFileLock<=SHARED_LOCK );
-  
-  /* no-op if possible */
-  if( pFile->eFileLock==eFileLock ){
-    return SQLITE_OK;
-  }
-
-  /* To downgrade to shared, simply update our internal notion of the
-  ** lock state.  No need to mess with the file on disk.
-  */
-  if( eFileLock==SHARED_LOCK ){
-    pFile->eFileLock = SHARED_LOCK;
-    return SQLITE_OK;
-  }
-  
-  /* To fully unlock the database, delete the lock file */
-  assert( eFileLock==NO_LOCK );
-  rc = osRmdir(zLockFile);
-  if( rc<0 ){
-    int tErrno = errno;
-    if( tErrno==ENOENT ){
-      rc = SQLITE_OK;
-    }else{
-      rc = SQLITE_IOERR_UNLOCK;
-      storeLastErrno(pFile, tErrno);
-    }
-    return rc; 
-  }
-  pFile->eFileLock = NO_LOCK;
-  return SQLITE_OK;
-}
-
-/*
-** Close a file.  Make sure the lock has been released before closing.
-*/
-static int dotlockClose(tdsqlite3_file *id) {
-  unixFile *pFile = (unixFile*)id;
-  assert( id!=0 );
-  dotlockUnlock(id, NO_LOCK);
-  tdsqlite3_free(pFile->lockingContext);
-  return closeUnixFile(id);
-}
-/****************** End of the dot-file lock implementation *******************
-******************************************************************************/
-
-/******************************************************************************
-************************** Begin flock Locking ********************************
-**
-** Use the flock() system call to do file locking.
-**
-** flock() locking is like dot-file locking in that the various
-** fine-grain locking levels supported by SQLite are collapsed into
-** a single exclusive lock.  In other words, SHARED, RESERVED, and
-** PENDING locks are the same thing as an EXCLUSIVE lock.  SQLite
-** still works when you do this, but concurrency is reduced since
-** only a single process can be reading the database at a time.
-**
-** Omit this section if SQLITE_ENABLE_LOCKING_STYLE is turned off
-*/
-#if SQLITE_ENABLE_LOCKING_STYLE
-
-/*
-** Retry flock() calls that fail with EINTR
-*/
-#ifdef EINTR
-static int robust_flock(int fd, int op){
-  int rc;
-  do{ rc = flock(fd,op); }while( rc<0 && errno==EINTR );
-  return rc;
-}
-#else
-# define robust_flock(a,b) flock(a,b)
-#endif
-     
-
-/*
-** This routine checks if there is a RESERVED lock held on the specified
-** file by this or any other process. If such a lock is held, set *pResOut
-** to a non-zero value otherwise *pResOut is set to zero.  The return value
-** is set to SQLITE_OK unless an I/O error occurs during lock checking.
-*/
-static int flockCheckReservedLock(tdsqlite3_file *id, int *pResOut){
-  int rc = SQLITE_OK;
-  int reserved = 0;
-  unixFile *pFile = (unixFile*)id;
-  
-  SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
-  
-  assert( pFile );
-  
-  /* Check if a thread in this process holds such a lock */
-  if( pFile->eFileLock>SHARED_LOCK ){
-    reserved = 1;
-  }
-  
-  /* Otherwise see if some other process holds it. */
-  if( !reserved ){
-    /* attempt to get the lock */
-    int lrc = robust_flock(pFile->h, LOCK_EX | LOCK_NB);
-    if( !lrc ){
-      /* got the lock, unlock it */
-      lrc = robust_flock(pFile->h, LOCK_UN);
-      if ( lrc ) {
-        int tErrno = errno;
-        /* unlock failed with an error */
-        lrc = SQLITE_IOERR_UNLOCK; 
-        storeLastErrno(pFile, tErrno);
-        rc = lrc;
-      }
-    } else {
-      int tErrno = errno;
-      reserved = 1;
-      /* someone else might have it reserved */
-      lrc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); 
-      if( IS_LOCK_ERROR(lrc) ){
-        storeLastErrno(pFile, tErrno);
-        rc = lrc;
-      }
-    }
-  }
-  OSTRACE(("TEST WR-LOCK %d %d %d (flock)\n", pFile->h, rc, reserved));
-
-#ifdef SQLITE_IGNORE_FLOCK_LOCK_ERRORS
-  if( (rc & 0xff) == SQLITE_IOERR ){
-    rc = SQLITE_OK;
-    reserved=1;
-  }
-#endif /* SQLITE_IGNORE_FLOCK_LOCK_ERRORS */
-  *pResOut = reserved;
-  return rc;
-}
-
-/*
-** Lock the file with the lock specified by parameter eFileLock - one
-** of the following:
-**
-**     (1) SHARED_LOCK
-**     (2) RESERVED_LOCK
-**     (3) PENDING_LOCK
-**     (4) EXCLUSIVE_LOCK
-**
-** Sometimes when requesting one lock state, additional lock states
-** are inserted in between.  The locking might fail on one of the later
-** transitions leaving the lock state different from what it started but
-** still short of its goal.  The following chart shows the allowed
-** transitions and the inserted intermediate states:
-**
-**    UNLOCKED -> SHARED
-**    SHARED -> RESERVED
-**    SHARED -> (PENDING) -> EXCLUSIVE
-**    RESERVED -> (PENDING) -> EXCLUSIVE
-**    PENDING -> EXCLUSIVE
-**
-** flock() only really support EXCLUSIVE locks.  We track intermediate
-** lock states in the tdsqlite3_file structure, but all locks SHARED or
-** above are really EXCLUSIVE locks and exclude all other processes from
-** access the file.
-**
-** This routine will only increase a lock.  Use the tdsqlite3OsUnlock()
-** routine to lower a locking level.
-*/
-static int flockLock(tdsqlite3_file *id, int eFileLock) {
-  int rc = SQLITE_OK;
-  unixFile *pFile = (unixFile*)id;
-
-  assert( pFile );
-
-  /* if we already have a lock, it is exclusive.  
-  ** Just adjust level and punt on outta here. */
-  if (pFile->eFileLock > NO_LOCK) {
-    pFile->eFileLock = eFileLock;
-    return SQLITE_OK;
-  }
-  
-  /* grab an exclusive lock */
-  
-  if (robust_flock(pFile->h, LOCK_EX | LOCK_NB)) {
-    int tErrno = errno;
-    /* didn't get, must be busy */
-    rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
-    if( IS_LOCK_ERROR(rc) ){
-      storeLastErrno(pFile, tErrno);
-    }
-  } else {
-    /* got it, set the type and return ok */
-    pFile->eFileLock = eFileLock;
-  }
-  OSTRACE(("LOCK    %d %s %s (flock)\n", pFile->h, azFileLock(eFileLock), 
-           rc==SQLITE_OK ? "ok" : "failed"));
-#ifdef SQLITE_IGNORE_FLOCK_LOCK_ERRORS
-  if( (rc & 0xff) == SQLITE_IOERR ){
-    rc = SQLITE_BUSY;
-  }
-#endif /* SQLITE_IGNORE_FLOCK_LOCK_ERRORS */
-  return rc;
-}
-
-
-/*
-** Lower the locking level on file descriptor pFile to eFileLock.  eFileLock
-** must be either NO_LOCK or SHARED_LOCK.
-**
-** If the locking level of the file descriptor is already at or below
-** the requested locking level, this routine is a no-op.
-*/
-static int flockUnlock(tdsqlite3_file *id, int eFileLock) {
-  unixFile *pFile = (unixFile*)id;
-  
-  assert( pFile );
-  OSTRACE(("UNLOCK  %d %d was %d pid=%d (flock)\n", pFile->h, eFileLock,
-           pFile->eFileLock, osGetpid(0)));
-  assert( eFileLock<=SHARED_LOCK );
-  
-  /* no-op if possible */
-  if( pFile->eFileLock==eFileLock ){
-    return SQLITE_OK;
-  }
-  
-  /* shared can just be set because we always have an exclusive */
-  if (eFileLock==SHARED_LOCK) {
-    pFile->eFileLock = eFileLock;
-    return SQLITE_OK;
-  }
-  
-  /* no, really, unlock. */
-  if( robust_flock(pFile->h, LOCK_UN) ){
-#ifdef SQLITE_IGNORE_FLOCK_LOCK_ERRORS
-    return SQLITE_OK;
-#endif /* SQLITE_IGNORE_FLOCK_LOCK_ERRORS */
-    return SQLITE_IOERR_UNLOCK;
-  }else{
-    pFile->eFileLock = NO_LOCK;
-    return SQLITE_OK;
-  }
-}
-
-/*
-** Close a file.
-*/
-static int flockClose(tdsqlite3_file *id) {
-  assert( id!=0 );
-  flockUnlock(id, NO_LOCK);
-  return closeUnixFile(id);
-}
-
-#endif /* SQLITE_ENABLE_LOCKING_STYLE && !OS_VXWORK */
-
-/******************* End of the flock lock implementation *********************
-******************************************************************************/
-
-/******************************************************************************
-************************ Begin Named Semaphore Locking ************************
-**
-** Named semaphore locking is only supported on VxWorks.
-**
-** Semaphore locking is like dot-lock and flock in that it really only
-** supports EXCLUSIVE locking.  Only a single process can read or write
-** the database file at a time.  This reduces potential concurrency, but
-** makes the lock implementation much easier.
-*/
-#if OS_VXWORKS
-
-/*
-** This routine checks if there is a RESERVED lock held on the specified
-** file by this or any other process. If such a lock is held, set *pResOut
-** to a non-zero value otherwise *pResOut is set to zero.  The return value
-** is set to SQLITE_OK unless an I/O error occurs during lock checking.
-*/
-static int semXCheckReservedLock(tdsqlite3_file *id, int *pResOut) {
-  int rc = SQLITE_OK;
-  int reserved = 0;
-  unixFile *pFile = (unixFile*)id;
-
-  SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
-  
-  assert( pFile );
-
-  /* Check if a thread in this process holds such a lock */
-  if( pFile->eFileLock>SHARED_LOCK ){
-    reserved = 1;
-  }
-  
-  /* Otherwise see if some other process holds it. */
-  if( !reserved ){
-    sem_t *pSem = pFile->pInode->pSem;
-
-    if( sem_trywait(pSem)==-1 ){
-      int tErrno = errno;
-      if( EAGAIN != tErrno ){
-        rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_CHECKRESERVEDLOCK);
-        storeLastErrno(pFile, tErrno);
-      } else {
-        /* someone else has the lock when we are in NO_LOCK */
-        reserved = (pFile->eFileLock < SHARED_LOCK);
-      }
-    }else{
-      /* we could have it if we want it */
-      sem_post(pSem);
-    }
-  }
-  OSTRACE(("TEST WR-LOCK %d %d %d (sem)\n", pFile->h, rc, reserved));
-
-  *pResOut = reserved;
-  return rc;
-}
-
-/*
-** Lock the file with the lock specified by parameter eFileLock - one
-** of the following:
-**
-**     (1) SHARED_LOCK
-**     (2) RESERVED_LOCK
-**     (3) PENDING_LOCK
-**     (4) EXCLUSIVE_LOCK
-**
-** Sometimes when requesting one lock state, additional lock states
-** are inserted in between.  The locking might fail on one of the later
-** transitions leaving the lock state different from what it started but
-** still short of its goal.  The following chart shows the allowed
-** transitions and the inserted intermediate states:
-**
-**    UNLOCKED -> SHARED
-**    SHARED -> RESERVED
-**    SHARED -> (PENDING) -> EXCLUSIVE
-**    RESERVED -> (PENDING) -> EXCLUSIVE
-**    PENDING -> EXCLUSIVE
-**
-** Semaphore locks only really support EXCLUSIVE locks.  We track intermediate
-** lock states in the tdsqlite3_file structure, but all locks SHARED or
-** above are really EXCLUSIVE locks and exclude all other processes from
-** access the file.
-**
-** This routine will only increase a lock.  Use the tdsqlite3OsUnlock()
-** routine to lower a locking level.
-*/
-static int semXLock(tdsqlite3_file *id, int eFileLock) {
-  unixFile *pFile = (unixFile*)id;
-  sem_t *pSem = pFile->pInode->pSem;
-  int rc = SQLITE_OK;
-
-  /* if we already have a lock, it is exclusive.  
-  ** Just adjust level and punt on outta here. */
-  if (pFile->eFileLock > NO_LOCK) {
-    pFile->eFileLock = eFileLock;
-    rc = SQLITE_OK;
-    goto sem_end_lock;
-  }
-  
-  /* lock semaphore now but bail out when already locked. */
-  if( sem_trywait(pSem)==-1 ){
-    rc = SQLITE_BUSY;
-    goto sem_end_lock;
-  }
-
-  /* got it, set the type and return ok */
-  pFile->eFileLock = eFileLock;
-
- sem_end_lock:
-  return rc;
-}
-
-/*
-** Lower the locking level on file descriptor pFile to eFileLock.  eFileLock
-** must be either NO_LOCK or SHARED_LOCK.
-**
-** If the locking level of the file descriptor is already at or below
-** the requested locking level, this routine is a no-op.
-*/
-static int semXUnlock(tdsqlite3_file *id, int eFileLock) {
-  unixFile *pFile = (unixFile*)id;
-  sem_t *pSem = pFile->pInode->pSem;
-
-  assert( pFile );
-  assert( pSem );
-  OSTRACE(("UNLOCK  %d %d was %d pid=%d (sem)\n", pFile->h, eFileLock,
-           pFile->eFileLock, osGetpid(0)));
-  assert( eFileLock<=SHARED_LOCK );
-  
-  /* no-op if possible */
-  if( pFile->eFileLock==eFileLock ){
-    return SQLITE_OK;
-  }
-  
-  /* shared can just be set because we always have an exclusive */
-  if (eFileLock==SHARED_LOCK) {
-    pFile->eFileLock = eFileLock;
-    return SQLITE_OK;
-  }
-  
-  /* no, really unlock. */
-  if ( sem_post(pSem)==-1 ) {
-    int rc, tErrno = errno;
-    rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_UNLOCK);
-    if( IS_LOCK_ERROR(rc) ){
-      storeLastErrno(pFile, tErrno);
-    }
-    return rc; 
-  }
-  pFile->eFileLock = NO_LOCK;
-  return SQLITE_OK;
-}
-
-/*
- ** Close a file.
- */
-static int semXClose(tdsqlite3_file *id) {
-  if( id ){
-    unixFile *pFile = (unixFile*)id;
-    semXUnlock(id, NO_LOCK);
-    assert( pFile );
-    assert( unixFileMutexNotheld(pFile) );
-    unixEnterMutex();
-    releaseInodeInfo(pFile);
-    unixLeaveMutex();
-    closeUnixFile(id);
-  }
-  return SQLITE_OK;
-}
-
-#endif /* OS_VXWORKS */
-/*
-** Named semaphore locking is only available on VxWorks.
-**
-*************** End of the named semaphore lock implementation ****************
-******************************************************************************/
-
-
-/******************************************************************************
-*************************** Begin AFP Locking *********************************
-**
-** AFP is the Apple Filing Protocol.  AFP is a network filesystem found
-** on Apple Macintosh computers - both OS9 and OSX.
-**
-** Third-party implementations of AFP are available.  But this code here
-** only works on OSX.
-*/
-
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-/*
-** The afpLockingContext structure contains all afp lock specific state
-*/
-typedef struct afpLockingContext afpLockingContext;
-struct afpLockingContext {
-  int reserved;
-  const char *dbPath;             /* Name of the open file */
-};
-
-struct ByteRangeLockPB2
-{
-  unsigned long long offset;        /* offset to first byte to lock */
-  unsigned long long length;        /* nbr of bytes to lock */
-  unsigned long long retRangeStart; /* nbr of 1st byte locked if successful */
-  unsigned char unLockFlag;         /* 1 = unlock, 0 = lock */
-  unsigned char startEndFlag;       /* 1=rel to end of fork, 0=rel to start */
-  int fd;                           /* file desc to assoc this lock with */
-};
-
-#define afpfsByteRangeLock2FSCTL        _IOWR('z', 23, struct ByteRangeLockPB2)
-
-/*
-** This is a utility for setting or clearing a bit-range lock on an
-** AFP filesystem.
-** 
-** Return SQLITE_OK on success, SQLITE_BUSY on failure.
-*/
-static int afpSetLock(
-  const char *path,              /* Name of the file to be locked or unlocked */
-  unixFile *pFile,               /* Open file descriptor on path */
-  unsigned long long offset,     /* First byte to be locked */
-  unsigned long long length,     /* Number of bytes to lock */
-  int setLockFlag                /* True to set lock.  False to clear lock */
-){
-  struct ByteRangeLockPB2 pb;
-  int err;
-  
-  pb.unLockFlag = setLockFlag ? 0 : 1;
-  pb.startEndFlag = 0;
-  pb.offset = offset;
-  pb.length = length; 
-  pb.fd = pFile->h;
-  
-  OSTRACE(("AFPSETLOCK [%s] for %d%s in range %llx:%llx\n", 
-    (setLockFlag?"ON":"OFF"), pFile->h, (pb.fd==-1?"[testval-1]":""),
-    offset, length));
-  err = fsctl(path, afpfsByteRangeLock2FSCTL, &pb, 0);
-  if ( err==-1 ) {
-    int rc;
-    int tErrno = errno;
-    OSTRACE(("AFPSETLOCK failed to fsctl() '%s' %d %s\n",
-             path, tErrno, strerror(tErrno)));
-#ifdef SQLITE_IGNORE_AFP_LOCK_ERRORS
-    rc = SQLITE_BUSY;
-#else
-    rc = sqliteErrorFromPosixError(tErrno,
-                    setLockFlag ? SQLITE_IOERR_LOCK : SQLITE_IOERR_UNLOCK);
-#endif /* SQLITE_IGNORE_AFP_LOCK_ERRORS */
-    if( IS_LOCK_ERROR(rc) ){
-      storeLastErrno(pFile, tErrno);
-    }
-    return rc;
-  } else {
-    return SQLITE_OK;
-  }
-}
-
-/*
-** This routine checks if there is a RESERVED lock held on the specified
-** file by this or any other process. If such a lock is held, set *pResOut
-** to a non-zero value otherwise *pResOut is set to zero.  The return value
-** is set to SQLITE_OK unless an I/O error occurs during lock checking.
-*/
-static int afpCheckReservedLock(tdsqlite3_file *id, int *pResOut){
-  int rc = SQLITE_OK;
-  int reserved = 0;
-  unixFile *pFile = (unixFile*)id;
-  afpLockingContext *context;
-  
-  SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
-  
-  assert( pFile );
-  context = (afpLockingContext *) pFile->lockingContext;
-  if( context->reserved ){
-    *pResOut = 1;
-    return SQLITE_OK;
-  }
-  tdsqlite3_mutex_enter(pFile->pInode->pLockMutex);
-  /* Check if a thread in this process holds such a lock */
-  if( pFile->pInode->eFileLock>SHARED_LOCK ){
-    reserved = 1;
-  }
-  
-  /* Otherwise see if some other process holds it.
-   */
-  if( !reserved ){
-    /* lock the RESERVED byte */
-    int lrc = afpSetLock(context->dbPath, pFile, RESERVED_BYTE, 1,1);  
-    if( SQLITE_OK==lrc ){
-      /* if we succeeded in taking the reserved lock, unlock it to restore
-      ** the original state */
-      lrc = afpSetLock(context->dbPath, pFile, RESERVED_BYTE, 1, 0);
-    } else {
-      /* if we failed to get the lock then someone else must have it */
-      reserved = 1;
-    }
-    if( IS_LOCK_ERROR(lrc) ){
-      rc=lrc;
-    }
-  }
-  
-  tdsqlite3_mutex_leave(pFile->pInode->pLockMutex);
-  OSTRACE(("TEST WR-LOCK %d %d %d (afp)\n", pFile->h, rc, reserved));
-  
-  *pResOut = reserved;
-  return rc;
-}
-
-/*
-** Lock the file with the lock specified by parameter eFileLock - one
-** of the following:
-**
-**     (1) SHARED_LOCK
-**     (2) RESERVED_LOCK
-**     (3) PENDING_LOCK
-**     (4) EXCLUSIVE_LOCK
-**
-** Sometimes when requesting one lock state, additional lock states
-** are inserted in between.  The locking might fail on one of the later
-** transitions leaving the lock state different from what it started but
-** still short of its goal.  The following chart shows the allowed
-** transitions and the inserted intermediate states:
-**
-**    UNLOCKED -> SHARED
-**    SHARED -> RESERVED
-**    SHARED -> (PENDING) -> EXCLUSIVE
-**    RESERVED -> (PENDING) -> EXCLUSIVE
-**    PENDING -> EXCLUSIVE
-**
-** This routine will only increase a lock.  Use the tdsqlite3OsUnlock()
-** routine to lower a locking level.
-*/
-static int afpLock(tdsqlite3_file *id, int eFileLock){
-  int rc = SQLITE_OK;
-  unixFile *pFile = (unixFile*)id;
-  unixInodeInfo *pInode = pFile->pInode;
-  afpLockingContext *context = (afpLockingContext *) pFile->lockingContext;
-  
-  assert( pFile );
-  OSTRACE(("LOCK    %d %s was %s(%s,%d) pid=%d (afp)\n", pFile->h,
-           azFileLock(eFileLock), azFileLock(pFile->eFileLock),
-           azFileLock(pInode->eFileLock), pInode->nShared , osGetpid(0)));
-
-  /* If there is already a lock of this type or more restrictive on the
-  ** unixFile, do nothing. Don't use the afp_end_lock: exit path, as
-  ** unixEnterMutex() hasn't been called yet.
-  */
-  if( pFile->eFileLock>=eFileLock ){
-    OSTRACE(("LOCK    %d %s ok (already held) (afp)\n", pFile->h,
-           azFileLock(eFileLock)));
-    return SQLITE_OK;
-  }
-
-  /* Make sure the locking sequence is correct
-  **  (1) We never move from unlocked to anything higher than shared lock.
-  **  (2) SQLite never explicitly requests a pendig lock.
-  **  (3) A shared lock is always held when a reserve lock is requested.
-  */
-  assert( pFile->eFileLock!=NO_LOCK || eFileLock==SHARED_LOCK );
-  assert( eFileLock!=PENDING_LOCK );
-  assert( eFileLock!=RESERVED_LOCK || pFile->eFileLock==SHARED_LOCK );
-  
-  /* This mutex is needed because pFile->pInode is shared across threads
-  */
-  pInode = pFile->pInode;
-  tdsqlite3_mutex_enter(pInode->pLockMutex);
-
-  /* If some thread using this PID has a lock via a different unixFile*
-  ** handle that precludes the requested lock, return BUSY.
-  */
-  if( (pFile->eFileLock!=pInode->eFileLock && 
-       (pInode->eFileLock>=PENDING_LOCK || eFileLock>SHARED_LOCK))
-     ){
-    rc = SQLITE_BUSY;
-    goto afp_end_lock;
-  }
-  
-  /* If a SHARED lock is requested, and some thread using this PID already
-  ** has a SHARED or RESERVED lock, then increment reference counts and
-  ** return SQLITE_OK.
-  */
-  if( eFileLock==SHARED_LOCK && 
-     (pInode->eFileLock==SHARED_LOCK || pInode->eFileLock==RESERVED_LOCK) ){
-    assert( eFileLock==SHARED_LOCK );
-    assert( pFile->eFileLock==0 );
-    assert( pInode->nShared>0 );
-    pFile->eFileLock = SHARED_LOCK;
-    pInode->nShared++;
-    pInode->nLock++;
-    goto afp_end_lock;
-  }
-    
-  /* A PENDING lock is needed before acquiring a SHARED lock and before
-  ** acquiring an EXCLUSIVE lock.  For the SHARED lock, the PENDING will
-  ** be released.
-  */
-  if( eFileLock==SHARED_LOCK 
-      || (eFileLock==EXCLUSIVE_LOCK && pFile->eFileLock<PENDING_LOCK)
-  ){
-    int failed;
-    failed = afpSetLock(context->dbPath, pFile, PENDING_BYTE, 1, 1);
-    if (failed) {
-      rc = failed;
-      goto afp_end_lock;
-    }
-  }
-  
-  /* If control gets to this point, then actually go ahead and make
-  ** operating system calls for the specified lock.
-  */
-  if( eFileLock==SHARED_LOCK ){
-    int lrc1, lrc2, lrc1Errno = 0;
-    long lk, mask;
-    
-    assert( pInode->nShared==0 );
-    assert( pInode->eFileLock==0 );
-        
-    mask = (sizeof(long)==8) ? LARGEST_INT64 : 0x7fffffff;
-    /* Now get the read-lock SHARED_LOCK */
-    /* note that the quality of the randomness doesn't matter that much */
-    lk = random(); 
-    pInode->sharedByte = (lk & mask)%(SHARED_SIZE - 1);
-    lrc1 = afpSetLock(context->dbPath, pFile, 
-          SHARED_FIRST+pInode->sharedByte, 1, 1);
-    if( IS_LOCK_ERROR(lrc1) ){
-      lrc1Errno = pFile->lastErrno;
-    }
-    /* Drop the temporary PENDING lock */
-    lrc2 = afpSetLock(context->dbPath, pFile, PENDING_BYTE, 1, 0);
-    
-    if( IS_LOCK_ERROR(lrc1) ) {
-      storeLastErrno(pFile, lrc1Errno);
-      rc = lrc1;
-      goto afp_end_lock;
-    } else if( IS_LOCK_ERROR(lrc2) ){
-      rc = lrc2;
-      goto afp_end_lock;
-    } else if( lrc1 != SQLITE_OK ) {
-      rc = lrc1;
-    } else {
-      pFile->eFileLock = SHARED_LOCK;
-      pInode->nLock++;
-      pInode->nShared = 1;
-    }
-  }else if( eFileLock==EXCLUSIVE_LOCK && pInode->nShared>1 ){
-    /* We are trying for an exclusive lock but another thread in this
-     ** same process is still holding a shared lock. */
-    rc = SQLITE_BUSY;
-  }else{
-    /* The request was for a RESERVED or EXCLUSIVE lock.  It is
-    ** assumed that there is a SHARED or greater lock on the file
-    ** already.
-    */
-    int failed = 0;
-    assert( 0!=pFile->eFileLock );
-    if (eFileLock >= RESERVED_LOCK && pFile->eFileLock < RESERVED_LOCK) {
-        /* Acquire a RESERVED lock */
-        failed = afpSetLock(context->dbPath, pFile, RESERVED_BYTE, 1,1);
-      if( !failed ){
-        context->reserved = 1;
-      }
-    }
-    if (!failed && eFileLock == EXCLUSIVE_LOCK) {
-      /* Acquire an EXCLUSIVE lock */
-        
-      /* Remove the shared lock before trying the range.  we'll need to 
-      ** reestablish the shared lock if we can't get the  afpUnlock
-      */
-      if( !(failed = afpSetLock(context->dbPath, pFile, SHARED_FIRST +
-                         pInode->sharedByte, 1, 0)) ){
-        int failed2 = SQLITE_OK;
-        /* now attemmpt to get the exclusive lock range */
-        failed = afpSetLock(context->dbPath, pFile, SHARED_FIRST, 
-                               SHARED_SIZE, 1);
-        if( failed && (failed2 = afpSetLock(context->dbPath, pFile, 
-                       SHARED_FIRST + pInode->sharedByte, 1, 1)) ){
-          /* Can't reestablish the shared lock.  Sqlite can't deal, this is
-          ** a critical I/O error
-          */
-          rc = ((failed & 0xff) == SQLITE_IOERR) ? failed2 : 
-               SQLITE_IOERR_LOCK;
-          goto afp_end_lock;
-        } 
-      }else{
-        rc = failed; 
-      }
-    }
-    if( failed ){
-      rc = failed;
-    }
-  }
-  
-  if( rc==SQLITE_OK ){
-    pFile->eFileLock = eFileLock;
-    pInode->eFileLock = eFileLock;
-  }else if( eFileLock==EXCLUSIVE_LOCK ){
-    pFile->eFileLock = PENDING_LOCK;
-    pInode->eFileLock = PENDING_LOCK;
-  }
-  
-afp_end_lock:
-  tdsqlite3_mutex_leave(pInode->pLockMutex);
-  OSTRACE(("LOCK    %d %s %s (afp)\n", pFile->h, azFileLock(eFileLock), 
-         rc==SQLITE_OK ? "ok" : "failed"));
-  return rc;
-}
-
-/*
-** Lower the locking level on file descriptor pFile to eFileLock.  eFileLock
-** must be either NO_LOCK or SHARED_LOCK.
-**
-** If the locking level of the file descriptor is already at or below
-** the requested locking level, this routine is a no-op.
-*/
-static int afpUnlock(tdsqlite3_file *id, int eFileLock) {
-  int rc = SQLITE_OK;
-  unixFile *pFile = (unixFile*)id;
-  unixInodeInfo *pInode;
-  afpLockingContext *context = (afpLockingContext *) pFile->lockingContext;
-  int skipShared = 0;
-#ifdef SQLITE_TEST
-  int h = pFile->h;
-#endif
-
-  assert( pFile );
-  OSTRACE(("UNLOCK  %d %d was %d(%d,%d) pid=%d (afp)\n", pFile->h, eFileLock,
-           pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared,
-           osGetpid(0)));
-
-  assert( eFileLock<=SHARED_LOCK );
-  if( pFile->eFileLock<=eFileLock ){
-    return SQLITE_OK;
-  }
-  pInode = pFile->pInode;
-  tdsqlite3_mutex_enter(pInode->pLockMutex);
-  assert( pInode->nShared!=0 );
-  if( pFile->eFileLock>SHARED_LOCK ){
-    assert( pInode->eFileLock==pFile->eFileLock );
-    SimulateIOErrorBenign(1);
-    SimulateIOError( h=(-1) )
-    SimulateIOErrorBenign(0);
-    
-#ifdef SQLITE_DEBUG
-    /* When reducing a lock such that other processes can start
-    ** reading the database file again, make sure that the
-    ** transaction counter was updated if any part of the database
-    ** file changed.  If the transaction counter is not updated,
-    ** other connections to the same file might not realize that
-    ** the file has changed and hence might not know to flush their
-    ** cache.  The use of a stale cache can lead to database corruption.
-    */
-    assert( pFile->inNormalWrite==0
-           || pFile->dbUpdate==0
-           || pFile->transCntrChng==1 );
-    pFile->inNormalWrite = 0;
-#endif
-    
-    if( pFile->eFileLock==EXCLUSIVE_LOCK ){
-      rc = afpSetLock(context->dbPath, pFile, SHARED_FIRST, SHARED_SIZE, 0);
-      if( rc==SQLITE_OK && (eFileLock==SHARED_LOCK || pInode->nShared>1) ){
-        /* only re-establish the shared lock if necessary */
-        int sharedLockByte = SHARED_FIRST+pInode->sharedByte;
-        rc = afpSetLock(context->dbPath, pFile, sharedLockByte, 1, 1);
-      } else {
-        skipShared = 1;
-      }
-    }
-    if( rc==SQLITE_OK && pFile->eFileLock>=PENDING_LOCK ){
-      rc = afpSetLock(context->dbPath, pFile, PENDING_BYTE, 1, 0);
-    } 
-    if( rc==SQLITE_OK && pFile->eFileLock>=RESERVED_LOCK && context->reserved ){
-      rc = afpSetLock(context->dbPath, pFile, RESERVED_BYTE, 1, 0);
-      if( !rc ){ 
-        context->reserved = 0; 
-      }
-    }
-    if( rc==SQLITE_OK && (eFileLock==SHARED_LOCK || pInode->nShared>1)){
-      pInode->eFileLock = SHARED_LOCK;
-    }
-  }
-  if( rc==SQLITE_OK && eFileLock==NO_LOCK ){
-
-    /* Decrement the shared lock counter.  Release the lock using an
-    ** OS call only when all threads in this same process have released
-    ** the lock.
-    */
-    unsigned long long sharedLockByte = SHARED_FIRST+pInode->sharedByte;
-    pInode->nShared--;
-    if( pInode->nShared==0 ){
-      SimulateIOErrorBenign(1);
-      SimulateIOError( h=(-1) )
-      SimulateIOErrorBenign(0);
-      if( !skipShared ){
-        rc = afpSetLock(context->dbPath, pFile, sharedLockByte, 1, 0);
-      }
-      if( !rc ){
-        pInode->eFileLock = NO_LOCK;
-        pFile->eFileLock = NO_LOCK;
-      }
-    }
-    if( rc==SQLITE_OK ){
-      pInode->nLock--;
-      assert( pInode->nLock>=0 );
-      if( pInode->nLock==0 ) closePendingFds(pFile);
-    }
-  }
-  
-  tdsqlite3_mutex_leave(pInode->pLockMutex);
-  if( rc==SQLITE_OK ){
-    pFile->eFileLock = eFileLock;
-  }
-  return rc;
-}
-
-/*
-** Close a file & cleanup AFP specific locking context 
-*/
-static int afpClose(tdsqlite3_file *id) {
-  int rc = SQLITE_OK;
-  unixFile *pFile = (unixFile*)id;
-  assert( id!=0 );
-  afpUnlock(id, NO_LOCK);
-  assert( unixFileMutexNotheld(pFile) );
-  unixEnterMutex();
-  if( pFile->pInode ){
-    unixInodeInfo *pInode = pFile->pInode;
-    tdsqlite3_mutex_enter(pInode->pLockMutex);
-    if( pInode->nLock ){
-      /* If there are outstanding locks, do not actually close the file just
-      ** yet because that would clear those locks.  Instead, add the file
-      ** descriptor to pInode->aPending.  It will be automatically closed when
-      ** the last lock is cleared.
-      */
-      setPendingFd(pFile);
-    }
-    tdsqlite3_mutex_leave(pInode->pLockMutex);
-  }
-  releaseInodeInfo(pFile);
-  tdsqlite3_free(pFile->lockingContext);
-  rc = closeUnixFile(id);
-  unixLeaveMutex();
-  return rc;
-}
-
-#endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */
-/*
-** The code above is the AFP lock implementation.  The code is specific
-** to MacOSX and does not work on other unix platforms.  No alternative
-** is available.  If you don't compile for a mac, then the "unix-afp"
-** VFS is not available.
-**
-********************* End of the AFP lock implementation **********************
-******************************************************************************/
-
-/******************************************************************************
-*************************** Begin NFS Locking ********************************/
-
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-/*
- ** Lower the locking level on file descriptor pFile to eFileLock.  eFileLock
- ** must be either NO_LOCK or SHARED_LOCK.
- **
- ** If the locking level of the file descriptor is already at or below
- ** the requested locking level, this routine is a no-op.
- */
-static int nfsUnlock(tdsqlite3_file *id, int eFileLock){
-  return posixUnlock(id, eFileLock, 1);
-}
-
-#endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */
-/*
-** The code above is the NFS lock implementation.  The code is specific
-** to MacOSX and does not work on other unix platforms.  No alternative
-** is available.  
-**
-********************* End of the NFS lock implementation **********************
-******************************************************************************/
-
-/******************************************************************************
-**************** Non-locking tdsqlite3_file methods *****************************
-**
-** The next division contains implementations for all methods of the 
-** tdsqlite3_file object other than the locking methods.  The locking
-** methods were defined in divisions above (one locking method per
-** division).  Those methods that are common to all locking modes
-** are gather together into this division.
-*/
-
-/*
-** Seek to the offset passed as the second argument, then read cnt 
-** bytes into pBuf. Return the number of bytes actually read.
-**
-** NB:  If you define USE_PREAD or USE_PREAD64, then it might also
-** be necessary to define _XOPEN_SOURCE to be 500.  This varies from
-** one system to another.  Since SQLite does not define USE_PREAD
-** in any form by default, we will not attempt to define _XOPEN_SOURCE.
-** See tickets #2741 and #2681.
-**
-** To avoid stomping the errno value on a failed read the lastErrno value
-** is set before returning.
-*/
-static int seekAndRead(unixFile *id, tdsqlite3_int64 offset, void *pBuf, int cnt){
-  int got;
-  int prior = 0;
-#if (!defined(USE_PREAD) && !defined(USE_PREAD64))
-  i64 newOffset;
-#endif
-  TIMER_START;
-  assert( cnt==(cnt&0x1ffff) );
-  assert( id->h>2 );
-  do{
-#if defined(USE_PREAD)
-    got = osPread(id->h, pBuf, cnt, offset);
-    SimulateIOError( got = -1 );
-#elif defined(USE_PREAD64)
-    got = osPread64(id->h, pBuf, cnt, offset);
-    SimulateIOError( got = -1 );
-#else
-    newOffset = lseek(id->h, offset, SEEK_SET);
-    SimulateIOError( newOffset = -1 );
-    if( newOffset<0 ){
-      storeLastErrno((unixFile*)id, errno);
-      return -1;
-    }
-    got = osRead(id->h, pBuf, cnt);
-#endif
-    if( got==cnt ) break;
-    if( got<0 ){
-      if( errno==EINTR ){ got = 1; continue; }
-      prior = 0;
-      storeLastErrno((unixFile*)id,  errno);
-      break;
-    }else if( got>0 ){
-      cnt -= got;
-      offset += got;
-      prior += got;
-      pBuf = (void*)(got + (char*)pBuf);
-    }
-  }while( got>0 );
-  TIMER_END;
-  OSTRACE(("READ    %-3d %5d %7lld %llu\n",
-            id->h, got+prior, offset-prior, TIMER_ELAPSED));
-  return got+prior;
-}
-
-/*
-** Read data from a file into a buffer.  Return SQLITE_OK if all
-** bytes were read successfully and SQLITE_IOERR if anything goes
-** wrong.
-*/
-static int unixRead(
-  tdsqlite3_file *id, 
-  void *pBuf, 
-  int amt,
-  tdsqlite3_int64 offset
-){
-  unixFile *pFile = (unixFile *)id;
-  int got;
-  assert( id );
-  assert( offset>=0 );
-  assert( amt>0 );
-
-  /* If this is a database file (not a journal, master-journal or temp
-  ** file), the bytes in the locking range should never be read or written. */
-#if 0
-  assert( pFile->pPreallocatedUnused==0
-       || offset>=PENDING_BYTE+512
-       || offset+amt<=PENDING_BYTE 
-  );
-#endif
-
-#if SQLITE_MAX_MMAP_SIZE>0
-  /* Deal with as much of this read request as possible by transfering
-  ** data from the memory mapping using memcpy().  */
-  if( offset<pFile->mmapSize ){
-    if( offset+amt <= pFile->mmapSize ){
-      memcpy(pBuf, &((u8 *)(pFile->pMapRegion))[offset], amt);
-      return SQLITE_OK;
-    }else{
-      int nCopy = pFile->mmapSize - offset;
-      memcpy(pBuf, &((u8 *)(pFile->pMapRegion))[offset], nCopy);
-      pBuf = &((u8 *)pBuf)[nCopy];
-      amt -= nCopy;
-      offset += nCopy;
-    }
-  }
-#endif
-
-  got = seekAndRead(pFile, offset, pBuf, amt);
-  if( got==amt ){
-    return SQLITE_OK;
-  }else if( got<0 ){
-    /* lastErrno set by seekAndRead */
-    return SQLITE_IOERR_READ;
-  }else{
-    storeLastErrno(pFile, 0);   /* not a system error */
-    /* Unread parts of the buffer must be zero-filled */
-    memset(&((char*)pBuf)[got], 0, amt-got);
-    return SQLITE_IOERR_SHORT_READ;
-  }
-}
-
-/*
-** Attempt to seek the file-descriptor passed as the first argument to
-** absolute offset iOff, then attempt to write nBuf bytes of data from
-** pBuf to it. If an error occurs, return -1 and set *piErrno. Otherwise, 
-** return the actual number of bytes written (which may be less than
-** nBuf).
-*/
-static int seekAndWriteFd(
-  int fd,                         /* File descriptor to write to */
-  i64 iOff,                       /* File offset to begin writing at */
-  const void *pBuf,               /* Copy data from this buffer to the file */
-  int nBuf,                       /* Size of buffer pBuf in bytes */
-  int *piErrno                    /* OUT: Error number if error occurs */
-){
-  int rc = 0;                     /* Value returned by system call */
-
-  assert( nBuf==(nBuf&0x1ffff) );
-  assert( fd>2 );
-  assert( piErrno!=0 );
-  nBuf &= 0x1ffff;
-  TIMER_START;
-
-#if defined(USE_PREAD)
-  do{ rc = (int)osPwrite(fd, pBuf, nBuf, iOff); }while( rc<0 && errno==EINTR );
-#elif defined(USE_PREAD64)
-  do{ rc = (int)osPwrite64(fd, pBuf, nBuf, iOff);}while( rc<0 && errno==EINTR);
-#else
-  do{
-    i64 iSeek = lseek(fd, iOff, SEEK_SET);
-    SimulateIOError( iSeek = -1 );
-    if( iSeek<0 ){
-      rc = -1;
-      break;
-    }
-    rc = osWrite(fd, pBuf, nBuf);
-  }while( rc<0 && errno==EINTR );
-#endif
-
-  TIMER_END;
-  OSTRACE(("WRITE   %-3d %5d %7lld %llu\n", fd, rc, iOff, TIMER_ELAPSED));
-
-  if( rc<0 ) *piErrno = errno;
-  return rc;
-}
-
-
-/*
-** Seek to the offset in id->offset then read cnt bytes into pBuf.
-** Return the number of bytes actually read.  Update the offset.
-**
-** To avoid stomping the errno value on a failed write the lastErrno value
-** is set before returning.
-*/
-static int seekAndWrite(unixFile *id, i64 offset, const void *pBuf, int cnt){
-  return seekAndWriteFd(id->h, offset, pBuf, cnt, &id->lastErrno);
-}
-
-
-/*
-** Write data from a buffer into a file.  Return SQLITE_OK on success
-** or some other error code on failure.
-*/
-static int unixWrite(
-  tdsqlite3_file *id, 
-  const void *pBuf, 
-  int amt,
-  tdsqlite3_int64 offset 
-){
-  unixFile *pFile = (unixFile*)id;
-  int wrote = 0;
-  assert( id );
-  assert( amt>0 );
-
-  /* If this is a database file (not a journal, master-journal or temp
-  ** file), the bytes in the locking range should never be read or written. */
-#if 0
-  assert( pFile->pPreallocatedUnused==0
-       || offset>=PENDING_BYTE+512
-       || offset+amt<=PENDING_BYTE 
-  );
-#endif
-
-#ifdef SQLITE_DEBUG
-  /* If we are doing a normal write to a database file (as opposed to
-  ** doing a hot-journal rollback or a write to some file other than a
-  ** normal database file) then record the fact that the database
-  ** has changed.  If the transaction counter is modified, record that
-  ** fact too.
-  */
-  if( pFile->inNormalWrite ){
-    pFile->dbUpdate = 1;  /* The database has been modified */
-    if( offset<=24 && offset+amt>=27 ){
-      int rc;
-      char oldCntr[4];
-      SimulateIOErrorBenign(1);
-      rc = seekAndRead(pFile, 24, oldCntr, 4);
-      SimulateIOErrorBenign(0);
-      if( rc!=4 || memcmp(oldCntr, &((char*)pBuf)[24-offset], 4)!=0 ){
-        pFile->transCntrChng = 1;  /* The transaction counter has changed */
-      }
-    }
-  }
-#endif
-
-#if defined(SQLITE_MMAP_READWRITE) && SQLITE_MAX_MMAP_SIZE>0
-  /* Deal with as much of this write request as possible by transfering
-  ** data from the memory mapping using memcpy().  */
-  if( offset<pFile->mmapSize ){
-    if( offset+amt <= pFile->mmapSize ){
-      memcpy(&((u8 *)(pFile->pMapRegion))[offset], pBuf, amt);
-      return SQLITE_OK;
-    }else{
-      int nCopy = pFile->mmapSize - offset;
-      memcpy(&((u8 *)(pFile->pMapRegion))[offset], pBuf, nCopy);
-      pBuf = &((u8 *)pBuf)[nCopy];
-      amt -= nCopy;
-      offset += nCopy;
-    }
-  }
-#endif
- 
-  while( (wrote = seekAndWrite(pFile, offset, pBuf, amt))<amt && wrote>0 ){
-    amt -= wrote;
-    offset += wrote;
-    pBuf = &((char*)pBuf)[wrote];
-  }
-  SimulateIOError(( wrote=(-1), amt=1 ));
-  SimulateDiskfullError(( wrote=0, amt=1 ));
-
-  if( amt>wrote ){
-    if( wrote<0 && pFile->lastErrno!=ENOSPC ){
-      /* lastErrno set by seekAndWrite */
-      return SQLITE_IOERR_WRITE;
-    }else{
-      storeLastErrno(pFile, 0); /* not a system error */
-      return SQLITE_FULL;
-    }
-  }
-
-  return SQLITE_OK;
-}
-
-#ifdef SQLITE_TEST
-/*
-** Count the number of fullsyncs and normal syncs.  This is used to test
-** that syncs and fullsyncs are occurring at the right times.
-*/
-SQLITE_API int tdsqlite3_sync_count = 0;
-SQLITE_API int tdsqlite3_fullsync_count = 0;
-#endif
-
-/*
-** We do not trust systems to provide a working fdatasync().  Some do.
-** Others do no.  To be safe, we will stick with the (slightly slower)
-** fsync(). If you know that your system does support fdatasync() correctly,
-** then simply compile with -Dfdatasync=fdatasync or -DHAVE_FDATASYNC
-*/
-#if !defined(fdatasync) && !HAVE_FDATASYNC
-# define fdatasync fsync
-#endif
-
-/*
-** Define HAVE_FULLFSYNC to 0 or 1 depending on whether or not
-** the F_FULLFSYNC macro is defined.  F_FULLFSYNC is currently
-** only available on Mac OS X.  But that could change.
-*/
-#ifdef F_FULLFSYNC
-# define HAVE_FULLFSYNC 1
-#else
-# define HAVE_FULLFSYNC 0
-#endif
-
-
-/*
-** The fsync() system call does not work as advertised on many
-** unix systems.  The following procedure is an attempt to make
-** it work better.
-**
-** The SQLITE_NO_SYNC macro disables all fsync()s.  This is useful
-** for testing when we want to run through the test suite quickly.
-** You are strongly advised *not* to deploy with SQLITE_NO_SYNC
-** enabled, however, since with SQLITE_NO_SYNC enabled, an OS crash
-** or power failure will likely corrupt the database file.
-**
-** SQLite sets the dataOnly flag if the size of the file is unchanged.
-** The idea behind dataOnly is that it should only write the file content
-** to disk, not the inode.  We only set dataOnly if the file size is 
-** unchanged since the file size is part of the inode.  However, 
-** Ted Ts'o tells us that fdatasync() will also write the inode if the
-** file size has changed.  The only real difference between fdatasync()
-** and fsync(), Ted tells us, is that fdatasync() will not flush the
-** inode if the mtime or owner or other inode attributes have changed.
-** We only care about the file size, not the other file attributes, so
-** as far as SQLite is concerned, an fdatasync() is always adequate.
-** So, we always use fdatasync() if it is available, regardless of
-** the value of the dataOnly flag.
-*/
-static int full_fsync(int fd, int fullSync, int dataOnly){
-  int rc;
-
-  /* The following "ifdef/elif/else/" block has the same structure as
-  ** the one below. It is replicated here solely to avoid cluttering 
-  ** up the real code with the UNUSED_PARAMETER() macros.
-  */
-#ifdef SQLITE_NO_SYNC
-  UNUSED_PARAMETER(fd);
-  UNUSED_PARAMETER(fullSync);
-  UNUSED_PARAMETER(dataOnly);
-#elif HAVE_FULLFSYNC
-  UNUSED_PARAMETER(dataOnly);
-#else
-  UNUSED_PARAMETER(fullSync);
-  UNUSED_PARAMETER(dataOnly);
-#endif
-
-  /* Record the number of times that we do a normal fsync() and 
-  ** FULLSYNC.  This is used during testing to verify that this procedure
-  ** gets called with the correct arguments.
-  */
-#ifdef SQLITE_TEST
-  if( fullSync ) tdsqlite3_fullsync_count++;
-  tdsqlite3_sync_count++;
-#endif
-
-  /* If we compiled with the SQLITE_NO_SYNC flag, then syncing is a
-  ** no-op.  But go ahead and call fstat() to validate the file
-  ** descriptor as we need a method to provoke a failure during
-  ** coverate testing.
-  */
-#ifdef SQLITE_NO_SYNC
-  {
-    struct stat buf;
-    rc = osFstat(fd, &buf);
-  }
-#elif HAVE_FULLFSYNC
-  if( fullSync ){
-    rc = osFcntl(fd, F_FULLFSYNC, 0);
-  }else{
-    rc = 1;
-  }
-  /* If the FULLFSYNC failed, fall back to attempting an fsync().
-  ** It shouldn't be possible for fullfsync to fail on the local 
-  ** file system (on OSX), so failure indicates that FULLFSYNC
-  ** isn't supported for this file system. So, attempt an fsync 
-  ** and (for now) ignore the overhead of a superfluous fcntl call.  
-  ** It'd be better to detect fullfsync support once and avoid 
-  ** the fcntl call every time sync is called.
-  */
-  if( rc ) rc = fsync(fd);
-
-#elif defined(__APPLE__)
-  /* fdatasync() on HFS+ doesn't yet flush the file size if it changed correctly
-  ** so currently we default to the macro that redefines fdatasync to fsync
-  */
-  rc = fsync(fd);
-#else 
-  rc = fdatasync(fd);
-#if OS_VXWORKS
-  if( rc==-1 && errno==ENOTSUP ){
-    rc = fsync(fd);
-  }
-#endif /* OS_VXWORKS */
-#endif /* ifdef SQLITE_NO_SYNC elif HAVE_FULLFSYNC */
-
-  if( OS_VXWORKS && rc!= -1 ){
-    rc = 0;
-  }
-  return rc;
-}
-
-/*
-** Open a file descriptor to the directory containing file zFilename.
-** If successful, *pFd is set to the opened file descriptor and
-** SQLITE_OK is returned. If an error occurs, either SQLITE_NOMEM
-** or SQLITE_CANTOPEN is returned and *pFd is set to an undefined
-** value.
-**
-** The directory file descriptor is used for only one thing - to
-** fsync() a directory to make sure file creation and deletion events
-** are flushed to disk.  Such fsyncs are not needed on newer
-** journaling filesystems, but are required on older filesystems.
-**
-** This routine can be overridden using the xSetSysCall interface.
-** The ability to override this routine was added in support of the
-** chromium sandbox.  Opening a directory is a security risk (we are
-** told) so making it overrideable allows the chromium sandbox to
-** replace this routine with a harmless no-op.  To make this routine
-** a no-op, replace it with a stub that returns SQLITE_OK but leaves
-** *pFd set to a negative number.
-**
-** If SQLITE_OK is returned, the caller is responsible for closing
-** the file descriptor *pFd using close().
-*/
-static int openDirectory(const char *zFilename, int *pFd){
-  int ii;
-  int fd = -1;
-  char zDirname[MAX_PATHNAME+1];
-
-  tdsqlite3_snprintf(MAX_PATHNAME, zDirname, "%s", zFilename);
-  for(ii=(int)strlen(zDirname); ii>0 && zDirname[ii]!='/'; ii--);
-  if( ii>0 ){
-    zDirname[ii] = '\0';
-  }else{
-    if( zDirname[0]!='/' ) zDirname[0] = '.';
-    zDirname[1] = 0;
-  }
-  fd = robust_open(zDirname, O_RDONLY|O_BINARY|O_NOFOLLOW, 0);
-  if( fd>=0 ){
-    OSTRACE(("OPENDIR %-3d %s\n", fd, zDirname));
-  }
-  *pFd = fd;
-  if( fd>=0 ) return SQLITE_OK;
-  return unixLogError(SQLITE_CANTOPEN_BKPT, "openDirectory", zDirname);
-}
-
-/*
-** Make sure all writes to a particular file are committed to disk.
-**
-** If dataOnly==0 then both the file itself and its metadata (file
-** size, access time, etc) are synced.  If dataOnly!=0 then only the
-** file data is synced.
-**
-** Under Unix, also make sure that the directory entry for the file
-** has been created by fsync-ing the directory that contains the file.
-** If we do not do this and we encounter a power failure, the directory
-** entry for the journal might not exist after we reboot.  The next
-** SQLite to access the file will not know that the journal exists (because
-** the directory entry for the journal was never created) and the transaction
-** will not roll back - possibly leading to database corruption.
-*/
-static int unixSync(tdsqlite3_file *id, int flags){
-  int rc;
-  unixFile *pFile = (unixFile*)id;
-
-  int isDataOnly = (flags&SQLITE_SYNC_DATAONLY);
-  int isFullsync = (flags&0x0F)==SQLITE_SYNC_FULL;
-
-  /* Check that one of SQLITE_SYNC_NORMAL or FULL was passed */
-  assert((flags&0x0F)==SQLITE_SYNC_NORMAL
-      || (flags&0x0F)==SQLITE_SYNC_FULL
-  );
-
-  /* Unix cannot, but some systems may return SQLITE_FULL from here. This
-  ** line is to test that doing so does not cause any problems.
-  */
-  SimulateDiskfullError( return SQLITE_FULL );
-
-  assert( pFile );
-  OSTRACE(("SYNC    %-3d\n", pFile->h));
-  rc = full_fsync(pFile->h, isFullsync, isDataOnly);
-  SimulateIOError( rc=1 );
-  if( rc ){
-    storeLastErrno(pFile, errno);
-    return unixLogError(SQLITE_IOERR_FSYNC, "full_fsync", pFile->zPath);
-  }
-
-  /* Also fsync the directory containing the file if the DIRSYNC flag
-  ** is set.  This is a one-time occurrence.  Many systems (examples: AIX)
-  ** are unable to fsync a directory, so ignore errors on the fsync.
-  */
-  if( pFile->ctrlFlags & UNIXFILE_DIRSYNC ){
-    int dirfd;
-    OSTRACE(("DIRSYNC %s (have_fullfsync=%d fullsync=%d)\n", pFile->zPath,
-            HAVE_FULLFSYNC, isFullsync));
-    rc = osOpenDirectory(pFile->zPath, &dirfd);
-    if( rc==SQLITE_OK ){
-      full_fsync(dirfd, 0, 0);
-      robust_close(pFile, dirfd, __LINE__);
-    }else{
-      assert( rc==SQLITE_CANTOPEN );
-      rc = SQLITE_OK;
-    }
-    pFile->ctrlFlags &= ~UNIXFILE_DIRSYNC;
-  }
-  return rc;
-}
-
-/*
-** Truncate an open file to a specified size
-*/
-static int unixTruncate(tdsqlite3_file *id, i64 nByte){
-  unixFile *pFile = (unixFile *)id;
-  int rc;
-  assert( pFile );
-  SimulateIOError( return SQLITE_IOERR_TRUNCATE );
-
-  /* If the user has configured a chunk-size for this file, truncate the
-  ** file so that it consists of an integer number of chunks (i.e. the
-  ** actual file size after the operation may be larger than the requested
-  ** size).
-  */
-  if( pFile->szChunk>0 ){
-    nByte = ((nByte + pFile->szChunk - 1)/pFile->szChunk) * pFile->szChunk;
-  }
-
-  rc = robust_ftruncate(pFile->h, nByte);
-  if( rc ){
-    storeLastErrno(pFile, errno);
-    return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath);
-  }else{
-#ifdef SQLITE_DEBUG
-    /* If we are doing a normal write to a database file (as opposed to
-    ** doing a hot-journal rollback or a write to some file other than a
-    ** normal database file) and we truncate the file to zero length,
-    ** that effectively updates the change counter.  This might happen
-    ** when restoring a database using the backup API from a zero-length
-    ** source.
-    */
-    if( pFile->inNormalWrite && nByte==0 ){
-      pFile->transCntrChng = 1;
-    }
-#endif
-
-#if SQLITE_MAX_MMAP_SIZE>0
-    /* If the file was just truncated to a size smaller than the currently
-    ** mapped region, reduce the effective mapping size as well. SQLite will
-    ** use read() and write() to access data beyond this point from now on.  
-    */
-    if( nByte<pFile->mmapSize ){
-      pFile->mmapSize = nByte;
-    }
-#endif
-
-    return SQLITE_OK;
-  }
-}
-
-/*
-** Determine the current size of a file in bytes
-*/
-static int unixFileSize(tdsqlite3_file *id, i64 *pSize){
-  int rc;
-  struct stat buf;
-  assert( id );
-  rc = osFstat(((unixFile*)id)->h, &buf);
-  SimulateIOError( rc=1 );
-  if( rc!=0 ){
-    storeLastErrno((unixFile*)id, errno);
-    return SQLITE_IOERR_FSTAT;
-  }
-  *pSize = buf.st_size;
-
-  /* When opening a zero-size database, the findInodeInfo() procedure
-  ** writes a single byte into that file in order to work around a bug
-  ** in the OS-X msdos filesystem.  In order to avoid problems with upper
-  ** layers, we need to report this file size as zero even though it is
-  ** really 1.   Ticket #3260.
-  */
-  if( *pSize==1 ) *pSize = 0;
-
-
-  return SQLITE_OK;
-}
-
-#if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
-/*
-** Handler for proxy-locking file-control verbs.  Defined below in the
-** proxying locking division.
-*/
-static int proxyFileControl(tdsqlite3_file*,int,void*);
-#endif
-
-/* 
-** This function is called to handle the SQLITE_FCNTL_SIZE_HINT 
-** file-control operation.  Enlarge the database to nBytes in size
-** (rounded up to the next chunk-size).  If the database is already
-** nBytes or larger, this routine is a no-op.
-*/
-static int fcntlSizeHint(unixFile *pFile, i64 nByte){
-  if( pFile->szChunk>0 ){
-    i64 nSize;                    /* Required file size */
-    struct stat buf;              /* Used to hold return values of fstat() */
-   
-    if( osFstat(pFile->h, &buf) ){
-      return SQLITE_IOERR_FSTAT;
-    }
-
-    nSize = ((nByte+pFile->szChunk-1) / pFile->szChunk) * pFile->szChunk;
-    if( nSize>(i64)buf.st_size ){
-
-#if defined(HAVE_POSIX_FALLOCATE) && HAVE_POSIX_FALLOCATE
-      /* The code below is handling the return value of osFallocate() 
-      ** correctly. posix_fallocate() is defined to "returns zero on success, 
-      ** or an error number on  failure". See the manpage for details. */
-      int err;
-      do{
-        err = osFallocate(pFile->h, buf.st_size, nSize-buf.st_size);
-      }while( err==EINTR );
-      if( err && err!=EINVAL ) return SQLITE_IOERR_WRITE;
-#else
-      /* If the OS does not have posix_fallocate(), fake it. Write a 
-      ** single byte to the last byte in each block that falls entirely
-      ** within the extended region. Then, if required, a single byte
-      ** at offset (nSize-1), to set the size of the file correctly.
-      ** This is a similar technique to that used by glibc on systems
-      ** that do not have a real fallocate() call.
-      */
-      int nBlk = buf.st_blksize;  /* File-system block size */
-      int nWrite = 0;             /* Number of bytes written by seekAndWrite */
-      i64 iWrite;                 /* Next offset to write to */
-
-      iWrite = (buf.st_size/nBlk)*nBlk + nBlk - 1;
-      assert( iWrite>=buf.st_size );
-      assert( ((iWrite+1)%nBlk)==0 );
-      for(/*no-op*/; iWrite<nSize+nBlk-1; iWrite+=nBlk ){
-        if( iWrite>=nSize ) iWrite = nSize - 1;
-        nWrite = seekAndWrite(pFile, iWrite, "", 1);
-        if( nWrite!=1 ) return SQLITE_IOERR_WRITE;
-      }
-#endif
-    }
-  }
-
-#if SQLITE_MAX_MMAP_SIZE>0
-  if( pFile->mmapSizeMax>0 && nByte>pFile->mmapSize ){
-    int rc;
-    if( pFile->szChunk<=0 ){
-      if( robust_ftruncate(pFile->h, nByte) ){
-        storeLastErrno(pFile, errno);
-        return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath);
-      }
-    }
-
-    rc = unixMapfile(pFile, nByte);
-    return rc;
-  }
-#endif
-
-  return SQLITE_OK;
-}
-
-/*
-** If *pArg is initially negative then this is a query.  Set *pArg to
-** 1 or 0 depending on whether or not bit mask of pFile->ctrlFlags is set.
-**
-** If *pArg is 0 or 1, then clear or set the mask bit of pFile->ctrlFlags.
-*/
-static void unixModeBit(unixFile *pFile, unsigned char mask, int *pArg){
-  if( *pArg<0 ){
-    *pArg = (pFile->ctrlFlags & mask)!=0;
-  }else if( (*pArg)==0 ){
-    pFile->ctrlFlags &= ~mask;
-  }else{
-    pFile->ctrlFlags |= mask;
-  }
-}
-
-/* Forward declaration */
-static int unixGetTempname(int nBuf, char *zBuf);
-
-/*
-** Information and control of an open file handle.
-*/
-static int unixFileControl(tdsqlite3_file *id, int op, void *pArg){
-  unixFile *pFile = (unixFile*)id;
-  switch( op ){
-#if defined(__linux__) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
-    case SQLITE_FCNTL_BEGIN_ATOMIC_WRITE: {
-      int rc = osIoctl(pFile->h, F2FS_IOC_START_ATOMIC_WRITE);
-      return rc ? SQLITE_IOERR_BEGIN_ATOMIC : SQLITE_OK;
-    }
-    case SQLITE_FCNTL_COMMIT_ATOMIC_WRITE: {
-      int rc = osIoctl(pFile->h, F2FS_IOC_COMMIT_ATOMIC_WRITE);
-      return rc ? SQLITE_IOERR_COMMIT_ATOMIC : SQLITE_OK;
-    }
-    case SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE: {
-      int rc = osIoctl(pFile->h, F2FS_IOC_ABORT_VOLATILE_WRITE);
-      return rc ? SQLITE_IOERR_ROLLBACK_ATOMIC : SQLITE_OK;
-    }
-#endif /* __linux__ && SQLITE_ENABLE_BATCH_ATOMIC_WRITE */
-
-    case SQLITE_FCNTL_LOCKSTATE: {
-      *(int*)pArg = pFile->eFileLock;
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_LAST_ERRNO: {
-      *(int*)pArg = pFile->lastErrno;
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_CHUNK_SIZE: {
-      pFile->szChunk = *(int *)pArg;
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_SIZE_HINT: {
-      int rc;
-      SimulateIOErrorBenign(1);
-      rc = fcntlSizeHint(pFile, *(i64 *)pArg);
-      SimulateIOErrorBenign(0);
-      return rc;
-    }
-    case SQLITE_FCNTL_PERSIST_WAL: {
-      unixModeBit(pFile, UNIXFILE_PERSIST_WAL, (int*)pArg);
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_POWERSAFE_OVERWRITE: {
-      unixModeBit(pFile, UNIXFILE_PSOW, (int*)pArg);
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_VFSNAME: {
-      *(char**)pArg = tdsqlite3_mprintf("%s", pFile->pVfs->zName);
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_TEMPFILENAME: {
-      char *zTFile = tdsqlite3_malloc64( pFile->pVfs->mxPathname );
-      if( zTFile ){
-        unixGetTempname(pFile->pVfs->mxPathname, zTFile);
-        *(char**)pArg = zTFile;
-      }
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_HAS_MOVED: {
-      *(int*)pArg = fileHasMoved(pFile);
-      return SQLITE_OK;
-    }
-#ifdef SQLITE_ENABLE_SETLK_TIMEOUT
-    case SQLITE_FCNTL_LOCK_TIMEOUT: {
-      pFile->iBusyTimeout = *(int*)pArg;
-      return SQLITE_OK;
-    }
-#endif
-#if SQLITE_MAX_MMAP_SIZE>0
-    case SQLITE_FCNTL_MMAP_SIZE: {
-      i64 newLimit = *(i64*)pArg;
-      int rc = SQLITE_OK;
-      if( newLimit>tdsqlite3GlobalConfig.mxMmap ){
-        newLimit = tdsqlite3GlobalConfig.mxMmap;
-      }
-
-      /* The value of newLimit may be eventually cast to (size_t) and passed
-      ** to mmap(). Restrict its value to 2GB if (size_t) is not at least a
-      ** 64-bit type. */
-      if( newLimit>0 && sizeof(size_t)<8 ){
-        newLimit = (newLimit & 0x7FFFFFFF);
-      }
-
-      *(i64*)pArg = pFile->mmapSizeMax;
-      if( newLimit>=0 && newLimit!=pFile->mmapSizeMax && pFile->nFetchOut==0 ){
-        pFile->mmapSizeMax = newLimit;
-        if( pFile->mmapSize>0 ){
-          unixUnmapfile(pFile);
-          rc = unixMapfile(pFile, -1);
-        }
-      }
-      return rc;
-    }
-#endif
-#ifdef SQLITE_DEBUG
-    /* The pager calls this method to signal that it has done
-    ** a rollback and that the database is therefore unchanged and
-    ** it hence it is OK for the transaction change counter to be
-    ** unchanged.
-    */
-    case SQLITE_FCNTL_DB_UNCHANGED: {
-      ((unixFile*)id)->dbUpdate = 0;
-      return SQLITE_OK;
-    }
-#endif
-#if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
-    case SQLITE_FCNTL_SET_LOCKPROXYFILE:
-    case SQLITE_FCNTL_GET_LOCKPROXYFILE: {
-      return proxyFileControl(id,op,pArg);
-    }
-#endif /* SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__) */
-  }
-  return SQLITE_NOTFOUND;
-}
-
-/*
-** If pFd->sectorSize is non-zero when this function is called, it is a
-** no-op. Otherwise, the values of pFd->sectorSize and 
-** pFd->deviceCharacteristics are set according to the file-system 
-** characteristics. 
-**
-** There are two versions of this function. One for QNX and one for all
-** other systems.
-*/
-#ifndef __QNXNTO__
-static void setDeviceCharacteristics(unixFile *pFd){
-  assert( pFd->deviceCharacteristics==0 || pFd->sectorSize!=0 );
-  if( pFd->sectorSize==0 ){
-#if defined(__linux__) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
-    int res;
-    u32 f = 0;
-
-    /* Check for support for F2FS atomic batch writes. */
-    res = osIoctl(pFd->h, F2FS_IOC_GET_FEATURES, &f);
-    if( res==0 && (f & F2FS_FEATURE_ATOMIC_WRITE) ){
-      pFd->deviceCharacteristics = SQLITE_IOCAP_BATCH_ATOMIC;
-    }
-#endif /* __linux__ && SQLITE_ENABLE_BATCH_ATOMIC_WRITE */
-
-    /* Set the POWERSAFE_OVERWRITE flag if requested. */
-    if( pFd->ctrlFlags & UNIXFILE_PSOW ){
-      pFd->deviceCharacteristics |= SQLITE_IOCAP_POWERSAFE_OVERWRITE;
-    }
-
-    pFd->sectorSize = SQLITE_DEFAULT_SECTOR_SIZE;
-  }
-}
-#else
-#include <sys/dcmd_blk.h>
-#include <sys/statvfs.h>
-static void setDeviceCharacteristics(unixFile *pFile){
-  if( pFile->sectorSize == 0 ){
-    struct statvfs fsInfo;
-       
-    /* Set defaults for non-supported filesystems */
-    pFile->sectorSize = SQLITE_DEFAULT_SECTOR_SIZE;
-    pFile->deviceCharacteristics = 0;
-    if( fstatvfs(pFile->h, &fsInfo) == -1 ) {
-      return;
-    }
-
-    if( !strcmp(fsInfo.f_basetype, "tmp") ) {
-      pFile->sectorSize = fsInfo.f_bsize;
-      pFile->deviceCharacteristics =
-        SQLITE_IOCAP_ATOMIC4K |       /* All ram filesystem writes are atomic */
-        SQLITE_IOCAP_SAFE_APPEND |    /* growing the file does not occur until
-                                      ** the write succeeds */
-        SQLITE_IOCAP_SEQUENTIAL |     /* The ram filesystem has no write behind
-                                      ** so it is ordered */
-        0;
-    }else if( strstr(fsInfo.f_basetype, "etfs") ){
-      pFile->sectorSize = fsInfo.f_bsize;
-      pFile->deviceCharacteristics =
-        /* etfs cluster size writes are atomic */
-        (pFile->sectorSize / 512 * SQLITE_IOCAP_ATOMIC512) |
-        SQLITE_IOCAP_SAFE_APPEND |    /* growing the file does not occur until
-                                      ** the write succeeds */
-        SQLITE_IOCAP_SEQUENTIAL |     /* The ram filesystem has no write behind
-                                      ** so it is ordered */
-        0;
-    }else if( !strcmp(fsInfo.f_basetype, "qnx6") ){
-      pFile->sectorSize = fsInfo.f_bsize;
-      pFile->deviceCharacteristics =
-        SQLITE_IOCAP_ATOMIC |         /* All filesystem writes are atomic */
-        SQLITE_IOCAP_SAFE_APPEND |    /* growing the file does not occur until
-                                      ** the write succeeds */
-        SQLITE_IOCAP_SEQUENTIAL |     /* The ram filesystem has no write behind
-                                      ** so it is ordered */
-        0;
-    }else if( !strcmp(fsInfo.f_basetype, "qnx4") ){
-      pFile->sectorSize = fsInfo.f_bsize;
-      pFile->deviceCharacteristics =
-        /* full bitset of atomics from max sector size and smaller */
-        ((pFile->sectorSize / 512 * SQLITE_IOCAP_ATOMIC512) << 1) - 2 |
-        SQLITE_IOCAP_SEQUENTIAL |     /* The ram filesystem has no write behind
-                                      ** so it is ordered */
-        0;
-    }else if( strstr(fsInfo.f_basetype, "dos") ){
-      pFile->sectorSize = fsInfo.f_bsize;
-      pFile->deviceCharacteristics =
-        /* full bitset of atomics from max sector size and smaller */
-        ((pFile->sectorSize / 512 * SQLITE_IOCAP_ATOMIC512) << 1) - 2 |
-        SQLITE_IOCAP_SEQUENTIAL |     /* The ram filesystem has no write behind
-                                      ** so it is ordered */
-        0;
-    }else{
-      pFile->deviceCharacteristics =
-        SQLITE_IOCAP_ATOMIC512 |      /* blocks are atomic */
-        SQLITE_IOCAP_SAFE_APPEND |    /* growing the file does not occur until
-                                      ** the write succeeds */
-        0;
-    }
-  }
-  /* Last chance verification.  If the sector size isn't a multiple of 512
-  ** then it isn't valid.*/
-  if( pFile->sectorSize % 512 != 0 ){
-    pFile->deviceCharacteristics = 0;
-    pFile->sectorSize = SQLITE_DEFAULT_SECTOR_SIZE;
-  }
-}
-#endif
-
-/*
-** Return the sector size in bytes of the underlying block device for
-** the specified file. This is almost always 512 bytes, but may be
-** larger for some devices.
-**
-** SQLite code assumes this function cannot fail. It also assumes that
-** if two files are created in the same file-system directory (i.e.
-** a database and its journal file) that the sector size will be the
-** same for both.
-*/
-static int unixSectorSize(tdsqlite3_file *id){
-  unixFile *pFd = (unixFile*)id;
-  setDeviceCharacteristics(pFd);
-  return pFd->sectorSize;
-}
-
-/*
-** Return the device characteristics for the file.
-**
-** This VFS is set up to return SQLITE_IOCAP_POWERSAFE_OVERWRITE by default.
-** However, that choice is controversial since technically the underlying
-** file system does not always provide powersafe overwrites.  (In other
-** words, after a power-loss event, parts of the file that were never
-** written might end up being altered.)  However, non-PSOW behavior is very,
-** very rare.  And asserting PSOW makes a large reduction in the amount
-** of required I/O for journaling, since a lot of padding is eliminated.
-**  Hence, while POWERSAFE_OVERWRITE is on by default, there is a file-control
-** available to turn it off and URI query parameter available to turn it off.
-*/
-static int unixDeviceCharacteristics(tdsqlite3_file *id){
-  unixFile *pFd = (unixFile*)id;
-  setDeviceCharacteristics(pFd);
-  return pFd->deviceCharacteristics;
-}
-
-#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
-
-/*
-** Return the system page size.
-**
-** This function should not be called directly by other code in this file. 
-** Instead, it should be called via macro osGetpagesize().
-*/
-static int unixGetpagesize(void){
-#if OS_VXWORKS
-  return 1024;
-#elif defined(_BSD_SOURCE)
-  return getpagesize();
-#else
-  return (int)sysconf(_SC_PAGESIZE);
-#endif
-}
-
-#endif /* !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0 */
-
-#ifndef SQLITE_OMIT_WAL
-
-/*
-** Object used to represent an shared memory buffer.  
-**
-** When multiple threads all reference the same wal-index, each thread
-** has its own unixShm object, but they all point to a single instance
-** of this unixShmNode object.  In other words, each wal-index is opened
-** only once per process.
-**
-** Each unixShmNode object is connected to a single unixInodeInfo object.
-** We could coalesce this object into unixInodeInfo, but that would mean
-** every open file that does not use shared memory (in other words, most
-** open files) would have to carry around this extra information.  So
-** the unixInodeInfo object contains a pointer to this unixShmNode object
-** and the unixShmNode object is created only when needed.
-**
-** unixMutexHeld() must be true when creating or destroying
-** this object or while reading or writing the following fields:
-**
-**      nRef
-**
-** The following fields are read-only after the object is created:
-** 
-**      hShm
-**      zFilename
-**
-** Either unixShmNode.pShmMutex must be held or unixShmNode.nRef==0 and
-** unixMutexHeld() is true when reading or writing any other field
-** in this structure.
-*/
-struct unixShmNode {
-  unixInodeInfo *pInode;     /* unixInodeInfo that owns this SHM node */
-  tdsqlite3_mutex *pShmMutex;  /* Mutex to access this object */
-  char *zFilename;           /* Name of the mmapped file */
-  int hShm;                  /* Open file descriptor */
-  int szRegion;              /* Size of shared-memory regions */
-  u16 nRegion;               /* Size of array apRegion */
-  u8 isReadonly;             /* True if read-only */
-  u8 isUnlocked;             /* True if no DMS lock held */
-  char **apRegion;           /* Array of mapped shared-memory regions */
-  int nRef;                  /* Number of unixShm objects pointing to this */
-  unixShm *pFirst;           /* All unixShm objects pointing to this */
-#ifdef SQLITE_DEBUG
-  u8 exclMask;               /* Mask of exclusive locks held */
-  u8 sharedMask;             /* Mask of shared locks held */
-  u8 nextShmId;              /* Next available unixShm.id value */
-#endif
-};
-
-/*
-** Structure used internally by this VFS to record the state of an
-** open shared memory connection.
-**
-** The following fields are initialized when this object is created and
-** are read-only thereafter:
-**
-**    unixShm.pShmNode
-**    unixShm.id
-**
-** All other fields are read/write.  The unixShm.pShmNode->pShmMutex must
-** be held while accessing any read/write fields.
-*/
-struct unixShm {
-  unixShmNode *pShmNode;     /* The underlying unixShmNode object */
-  unixShm *pNext;            /* Next unixShm with the same unixShmNode */
-  u8 hasMutex;               /* True if holding the unixShmNode->pShmMutex */
-  u8 id;                     /* Id of this connection within its unixShmNode */
-  u16 sharedMask;            /* Mask of shared locks held */
-  u16 exclMask;              /* Mask of exclusive locks held */
-};
-
-/*
-** Constants used for locking
-*/
-#define UNIX_SHM_BASE   ((22+SQLITE_SHM_NLOCK)*4)         /* first lock byte */
-#define UNIX_SHM_DMS    (UNIX_SHM_BASE+SQLITE_SHM_NLOCK)  /* deadman switch */
-
-/*
-** Apply posix advisory locks for all bytes from ofst through ofst+n-1.
-**
-** Locks block if the mask is exactly UNIX_SHM_C and are non-blocking
-** otherwise.
-*/
-static int unixShmSystemLock(
-  unixFile *pFile,       /* Open connection to the WAL file */
-  int lockType,          /* F_UNLCK, F_RDLCK, or F_WRLCK */
-  int ofst,              /* First byte of the locking range */
-  int n                  /* Number of bytes to lock */
-){
-  unixShmNode *pShmNode; /* Apply locks to this open shared-memory segment */
-  struct flock f;        /* The posix advisory locking structure */
-  int rc = SQLITE_OK;    /* Result code form fcntl() */
-
-  /* Access to the unixShmNode object is serialized by the caller */
-  pShmNode = pFile->pInode->pShmNode;
-  assert( pShmNode->nRef==0 || tdsqlite3_mutex_held(pShmNode->pShmMutex) );
-  assert( pShmNode->nRef>0 || unixMutexHeld() );
-
-  /* Shared locks never span more than one byte */
-  assert( n==1 || lockType!=F_RDLCK );
-
-  /* Locks are within range */
-  assert( n>=1 && n<=SQLITE_SHM_NLOCK );
-
-  if( pShmNode->hShm>=0 ){
-    /* Initialize the locking parameters */
-    f.l_type = lockType;
-    f.l_whence = SEEK_SET;
-    f.l_start = ofst;
-    f.l_len = n;
-    rc = osSetPosixAdvisoryLock(pShmNode->hShm, &f, pFile);
-    rc = (rc!=(-1)) ? SQLITE_OK : SQLITE_BUSY;
-  }
-
-  /* Update the global lock state and do debug tracing */
-#ifdef SQLITE_DEBUG
-  { u16 mask;
-  OSTRACE(("SHM-LOCK "));
-  mask = ofst>31 ? 0xffff : (1<<(ofst+n)) - (1<<ofst);
-  if( rc==SQLITE_OK ){
-    if( lockType==F_UNLCK ){
-      OSTRACE(("unlock %d ok", ofst));
-      pShmNode->exclMask &= ~mask;
-      pShmNode->sharedMask &= ~mask;
-    }else if( lockType==F_RDLCK ){
-      OSTRACE(("read-lock %d ok", ofst));
-      pShmNode->exclMask &= ~mask;
-      pShmNode->sharedMask |= mask;
-    }else{
-      assert( lockType==F_WRLCK );
-      OSTRACE(("write-lock %d ok", ofst));
-      pShmNode->exclMask |= mask;
-      pShmNode->sharedMask &= ~mask;
-    }
-  }else{
-    if( lockType==F_UNLCK ){
-      OSTRACE(("unlock %d failed", ofst));
-    }else if( lockType==F_RDLCK ){
-      OSTRACE(("read-lock failed"));
-    }else{
-      assert( lockType==F_WRLCK );
-      OSTRACE(("write-lock %d failed", ofst));
-    }
-  }
-  OSTRACE((" - afterwards %03x,%03x\n",
-           pShmNode->sharedMask, pShmNode->exclMask));
-  }
-#endif
-
-  return rc;        
-}
-
-/*
-** Return the minimum number of 32KB shm regions that should be mapped at
-** a time, assuming that each mapping must be an integer multiple of the
-** current system page-size.
-**
-** Usually, this is 1. The exception seems to be systems that are configured
-** to use 64KB pages - in this case each mapping must cover at least two
-** shm regions.
-*/
-static int unixShmRegionPerMap(void){
-  int shmsz = 32*1024;            /* SHM region size */
-  int pgsz = osGetpagesize();   /* System page size */
-  assert( ((pgsz-1)&pgsz)==0 );   /* Page size must be a power of 2 */
-  if( pgsz<shmsz ) return 1;
-  return pgsz/shmsz;
-}
-
-/*
-** Purge the unixShmNodeList list of all entries with unixShmNode.nRef==0.
-**
-** This is not a VFS shared-memory method; it is a utility function called
-** by VFS shared-memory methods.
-*/
-static void unixShmPurge(unixFile *pFd){
-  unixShmNode *p = pFd->pInode->pShmNode;
-  assert( unixMutexHeld() );
-  if( p && ALWAYS(p->nRef==0) ){
-    int nShmPerMap = unixShmRegionPerMap();
-    int i;
-    assert( p->pInode==pFd->pInode );
-    tdsqlite3_mutex_free(p->pShmMutex);
-    for(i=0; i<p->nRegion; i+=nShmPerMap){
-      if( p->hShm>=0 ){
-        osMunmap(p->apRegion[i], p->szRegion);
-      }else{
-        tdsqlite3_free(p->apRegion[i]);
-      }
-    }
-    tdsqlite3_free(p->apRegion);
-    if( p->hShm>=0 ){
-      robust_close(pFd, p->hShm, __LINE__);
-      p->hShm = -1;
-    }
-    p->pInode->pShmNode = 0;
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** The DMS lock has not yet been taken on shm file pShmNode. Attempt to
-** take it now. Return SQLITE_OK if successful, or an SQLite error
-** code otherwise.
-**
-** If the DMS cannot be locked because this is a readonly_shm=1 
-** connection and no other process already holds a lock, return
-** SQLITE_READONLY_CANTINIT and set pShmNode->isUnlocked=1.
-*/
-static int unixLockSharedMemory(unixFile *pDbFd, unixShmNode *pShmNode){
-  struct flock lock;
-  int rc = SQLITE_OK;
-
-  /* Use F_GETLK to determine the locks other processes are holding
-  ** on the DMS byte. If it indicates that another process is holding
-  ** a SHARED lock, then this process may also take a SHARED lock
-  ** and proceed with opening the *-shm file. 
-  **
-  ** Or, if no other process is holding any lock, then this process
-  ** is the first to open it. In this case take an EXCLUSIVE lock on the
-  ** DMS byte and truncate the *-shm file to zero bytes in size. Then
-  ** downgrade to a SHARED lock on the DMS byte.
-  **
-  ** If another process is holding an EXCLUSIVE lock on the DMS byte,
-  ** return SQLITE_BUSY to the caller (it will try again). An earlier
-  ** version of this code attempted the SHARED lock at this point. But
-  ** this introduced a subtle race condition: if the process holding
-  ** EXCLUSIVE failed just before truncating the *-shm file, then this
-  ** process might open and use the *-shm file without truncating it.
-  ** And if the *-shm file has been corrupted by a power failure or
-  ** system crash, the database itself may also become corrupt.  */
-  lock.l_whence = SEEK_SET;
-  lock.l_start = UNIX_SHM_DMS;
-  lock.l_len = 1;
-  lock.l_type = F_WRLCK;
-  if( osFcntl(pShmNode->hShm, F_GETLK, &lock)!=0 ) {
-    rc = SQLITE_IOERR_LOCK;
-  }else if( lock.l_type==F_UNLCK ){
-    if( pShmNode->isReadonly ){
-      pShmNode->isUnlocked = 1;
-      rc = SQLITE_READONLY_CANTINIT;
-    }else{
-      rc = unixShmSystemLock(pDbFd, F_WRLCK, UNIX_SHM_DMS, 1);
-      /* The first connection to attach must truncate the -shm file.  We
-      ** truncate to 3 bytes (an arbitrary small number, less than the
-      ** -shm header size) rather than 0 as a system debugging aid, to
-      ** help detect if a -shm file truncation is legitimate or is the work
-      ** or a rogue process. */
-#ifdef __ANDROID__
-      /* Fix SQLite DB corruption on some Samsung devices */
-      if( rc==SQLITE_OK && robust_ftruncate(pShmNode->hShm, 0) ){
-#else
-      if( rc==SQLITE_OK && robust_ftruncate(pShmNode->hShm, 3) ){
-#endif
-        rc = unixLogError(SQLITE_IOERR_SHMOPEN,"ftruncate",pShmNode->zFilename);
-      }
-    }
-  }else if( lock.l_type==F_WRLCK ){
-    rc = SQLITE_BUSY;
-  }
-
-  if( rc==SQLITE_OK ){
-    assert( lock.l_type==F_UNLCK || lock.l_type==F_RDLCK );
-    rc = unixShmSystemLock(pDbFd, F_RDLCK, UNIX_SHM_DMS, 1);
-  }
-  return rc;
-}
-
-/*
-** Open a shared-memory area associated with open database file pDbFd.  
-** This particular implementation uses mmapped files.
-**
-** The file used to implement shared-memory is in the same directory
-** as the open database file and has the same name as the open database
-** file with the "-shm" suffix added.  For example, if the database file
-** is "/home/user1/config.db" then the file that is created and mmapped
-** for shared memory will be called "/home/user1/config.db-shm".  
-**
-** Another approach to is to use files in /dev/shm or /dev/tmp or an
-** some other tmpfs mount. But if a file in a different directory
-** from the database file is used, then differing access permissions
-** or a chroot() might cause two different processes on the same
-** database to end up using different files for shared memory - 
-** meaning that their memory would not really be shared - resulting
-** in database corruption.  Nevertheless, this tmpfs file usage
-** can be enabled at compile-time using -DSQLITE_SHM_DIRECTORY="/dev/shm"
-** or the equivalent.  The use of the SQLITE_SHM_DIRECTORY compile-time
-** option results in an incompatible build of SQLite;  builds of SQLite
-** that with differing SQLITE_SHM_DIRECTORY settings attempt to use the
-** same database file at the same time, database corruption will likely
-** result. The SQLITE_SHM_DIRECTORY compile-time option is considered
-** "unsupported" and may go away in a future SQLite release.
-**
-** When opening a new shared-memory file, if no other instances of that
-** file are currently open, in this process or in other processes, then
-** the file must be truncated to zero length or have its header cleared.
-**
-** If the original database file (pDbFd) is using the "unix-excl" VFS
-** that means that an exclusive lock is held on the database file and
-** that no other processes are able to read or write the database.  In
-** that case, we do not really need shared memory.  No shared memory
-** file is created.  The shared memory will be simulated with heap memory.
-*/
-static int unixOpenSharedMemory(unixFile *pDbFd){
-  struct unixShm *p = 0;          /* The connection to be opened */
-  struct unixShmNode *pShmNode;   /* The underlying mmapped file */
-  int rc = SQLITE_OK;             /* Result code */
-  unixInodeInfo *pInode;          /* The inode of fd */
-  char *zShm;             /* Name of the file used for SHM */
-  int nShmFilename;               /* Size of the SHM filename in bytes */
-
-  /* Allocate space for the new unixShm object. */
-  p = tdsqlite3_malloc64( sizeof(*p) );
-  if( p==0 ) return SQLITE_NOMEM_BKPT;
-  memset(p, 0, sizeof(*p));
-  assert( pDbFd->pShm==0 );
-
-  /* Check to see if a unixShmNode object already exists. Reuse an existing
-  ** one if present. Create a new one if necessary.
-  */
-  assert( unixFileMutexNotheld(pDbFd) );
-  unixEnterMutex();
-  pInode = pDbFd->pInode;
-  pShmNode = pInode->pShmNode;
-  if( pShmNode==0 ){
-    struct stat sStat;                 /* fstat() info for database file */
-#ifndef SQLITE_SHM_DIRECTORY
-    const char *zBasePath = pDbFd->zPath;
-#endif
-
-    /* Call fstat() to figure out the permissions on the database file. If
-    ** a new *-shm file is created, an attempt will be made to create it
-    ** with the same permissions.
-    */
-    if( osFstat(pDbFd->h, &sStat) ){
-      rc = SQLITE_IOERR_FSTAT;
-      goto shm_open_err;
-    }
-
-#ifdef SQLITE_SHM_DIRECTORY
-    nShmFilename = sizeof(SQLITE_SHM_DIRECTORY) + 31;
-#else
-    nShmFilename = 6 + (int)strlen(zBasePath);
-#endif
-    pShmNode = tdsqlite3_malloc64( sizeof(*pShmNode) + nShmFilename );
-    if( pShmNode==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-      goto shm_open_err;
-    }
-    memset(pShmNode, 0, sizeof(*pShmNode)+nShmFilename);
-    zShm = pShmNode->zFilename = (char*)&pShmNode[1];
-#ifdef SQLITE_SHM_DIRECTORY
-    tdsqlite3_snprintf(nShmFilename, zShm, 
-                     SQLITE_SHM_DIRECTORY "/sqlite-shm-%x-%x",
-                     (u32)sStat.st_ino, (u32)sStat.st_dev);
-#else
-    tdsqlite3_snprintf(nShmFilename, zShm, "%s-shm", zBasePath);
-    tdsqlite3FileSuffix3(pDbFd->zPath, zShm);
-#endif
-    pShmNode->hShm = -1;
-    pDbFd->pInode->pShmNode = pShmNode;
-    pShmNode->pInode = pDbFd->pInode;
-    if( tdsqlite3GlobalConfig.bCoreMutex ){
-      pShmNode->pShmMutex = tdsqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
-      if( pShmNode->pShmMutex==0 ){
-        rc = SQLITE_NOMEM_BKPT;
-        goto shm_open_err;
-      }
-    }
-
-    if( pInode->bProcessLock==0 ){
-      if( 0==tdsqlite3_uri_boolean(pDbFd->zPath, "readonly_shm", 0) ){
-        pShmNode->hShm = robust_open(zShm, O_RDWR|O_CREAT|O_NOFOLLOW,
-                                     (sStat.st_mode&0777));
-      }
-      if( pShmNode->hShm<0 ){
-        pShmNode->hShm = robust_open(zShm, O_RDONLY|O_NOFOLLOW,
-                                     (sStat.st_mode&0777));
-        if( pShmNode->hShm<0 ){
-          rc = unixLogError(SQLITE_CANTOPEN_BKPT, "open", zShm);
-          goto shm_open_err;
-        }
-        pShmNode->isReadonly = 1;
-      }
-
-      /* If this process is running as root, make sure that the SHM file
-      ** is owned by the same user that owns the original database.  Otherwise,
-      ** the original owner will not be able to connect.
-      */
-      robustFchown(pShmNode->hShm, sStat.st_uid, sStat.st_gid);
-
-      rc = unixLockSharedMemory(pDbFd, pShmNode);
-      if( rc!=SQLITE_OK && rc!=SQLITE_READONLY_CANTINIT ) goto shm_open_err;
-    }
-  }
-
-  /* Make the new connection a child of the unixShmNode */
-  p->pShmNode = pShmNode;
-#ifdef SQLITE_DEBUG
-  p->id = pShmNode->nextShmId++;
-#endif
-  pShmNode->nRef++;
-  pDbFd->pShm = p;
-  unixLeaveMutex();
-
-  /* The reference count on pShmNode has already been incremented under
-  ** the cover of the unixEnterMutex() mutex and the pointer from the
-  ** new (struct unixShm) object to the pShmNode has been set. All that is
-  ** left to do is to link the new object into the linked list starting
-  ** at pShmNode->pFirst. This must be done while holding the
-  ** pShmNode->pShmMutex.
-  */
-  tdsqlite3_mutex_enter(pShmNode->pShmMutex);
-  p->pNext = pShmNode->pFirst;
-  pShmNode->pFirst = p;
-  tdsqlite3_mutex_leave(pShmNode->pShmMutex);
-  return rc;
-
-  /* Jump here on any error */
-shm_open_err:
-  unixShmPurge(pDbFd);       /* This call frees pShmNode if required */
-  tdsqlite3_free(p);
-  unixLeaveMutex();
-  return rc;
-}
-
-/*
-** This function is called to obtain a pointer to region iRegion of the 
-** shared-memory associated with the database file fd. Shared-memory regions 
-** are numbered starting from zero. Each shared-memory region is szRegion 
-** bytes in size.
-**
-** If an error occurs, an error code is returned and *pp is set to NULL.
-**
-** Otherwise, if the bExtend parameter is 0 and the requested shared-memory
-** region has not been allocated (by any client, including one running in a
-** separate process), then *pp is set to NULL and SQLITE_OK returned. If 
-** bExtend is non-zero and the requested shared-memory region has not yet 
-** been allocated, it is allocated by this function.
-**
-** If the shared-memory region has already been allocated or is allocated by
-** this call as described above, then it is mapped into this processes 
-** address space (if it is not already), *pp is set to point to the mapped 
-** memory and SQLITE_OK returned.
-*/
-static int unixShmMap(
-  tdsqlite3_file *fd,               /* Handle open on database file */
-  int iRegion,                    /* Region to retrieve */
-  int szRegion,                   /* Size of regions */
-  int bExtend,                    /* True to extend file if necessary */
-  void volatile **pp              /* OUT: Mapped memory */
-){
-  unixFile *pDbFd = (unixFile*)fd;
-  unixShm *p;
-  unixShmNode *pShmNode;
-  int rc = SQLITE_OK;
-  int nShmPerMap = unixShmRegionPerMap();
-  int nReqRegion;
-
-  /* If the shared-memory file has not yet been opened, open it now. */
-  if( pDbFd->pShm==0 ){
-    rc = unixOpenSharedMemory(pDbFd);
-    if( rc!=SQLITE_OK ) return rc;
-  }
-
-  p = pDbFd->pShm;
-  pShmNode = p->pShmNode;
-  tdsqlite3_mutex_enter(pShmNode->pShmMutex);
-  if( pShmNode->isUnlocked ){
-    rc = unixLockSharedMemory(pDbFd, pShmNode);
-    if( rc!=SQLITE_OK ) goto shmpage_out;
-    pShmNode->isUnlocked = 0;
-  }
-  assert( szRegion==pShmNode->szRegion || pShmNode->nRegion==0 );
-  assert( pShmNode->pInode==pDbFd->pInode );
-  assert( pShmNode->hShm>=0 || pDbFd->pInode->bProcessLock==1 );
-  assert( pShmNode->hShm<0 || pDbFd->pInode->bProcessLock==0 );
-
-  /* Minimum number of regions required to be mapped. */
-  nReqRegion = ((iRegion+nShmPerMap) / nShmPerMap) * nShmPerMap;
-
-  if( pShmNode->nRegion<nReqRegion ){
-    char **apNew;                      /* New apRegion[] array */
-    int nByte = nReqRegion*szRegion;   /* Minimum required file size */
-    struct stat sStat;                 /* Used by fstat() */
-
-    pShmNode->szRegion = szRegion;
-
-    if( pShmNode->hShm>=0 ){
-      /* The requested region is not mapped into this processes address space.
-      ** Check to see if it has been allocated (i.e. if the wal-index file is
-      ** large enough to contain the requested region).
-      */
-      if( osFstat(pShmNode->hShm, &sStat) ){
-        rc = SQLITE_IOERR_SHMSIZE;
-        goto shmpage_out;
-      }
-  
-      if( sStat.st_size<nByte ){
-        /* The requested memory region does not exist. If bExtend is set to
-        ** false, exit early. *pp will be set to NULL and SQLITE_OK returned.
-        */
-        if( !bExtend ){
-          goto shmpage_out;
-        }
-
-        /* Alternatively, if bExtend is true, extend the file. Do this by
-        ** writing a single byte to the end of each (OS) page being
-        ** allocated or extended. Technically, we need only write to the
-        ** last page in order to extend the file. But writing to all new
-        ** pages forces the OS to allocate them immediately, which reduces
-        ** the chances of SIGBUS while accessing the mapped region later on.
-        */
-        else{
-          static const int pgsz = 4096;
-          int iPg;
-
-          /* Write to the last byte of each newly allocated or extended page */
-          assert( (nByte % pgsz)==0 );
-          for(iPg=(sStat.st_size/pgsz); iPg<(nByte/pgsz); iPg++){
-            int x = 0;
-            if( seekAndWriteFd(pShmNode->hShm, iPg*pgsz + pgsz-1,"",1,&x)!=1 ){
-              const char *zFile = pShmNode->zFilename;
-              rc = unixLogError(SQLITE_IOERR_SHMSIZE, "write", zFile);
-              goto shmpage_out;
-            }
-          }
-        }
-      }
-    }
-
-    /* Map the requested memory region into this processes address space. */
-    apNew = (char **)tdsqlite3_realloc(
-        pShmNode->apRegion, nReqRegion*sizeof(char *)
-    );
-    if( !apNew ){
-      rc = SQLITE_IOERR_NOMEM_BKPT;
-      goto shmpage_out;
-    }
-    pShmNode->apRegion = apNew;
-    while( pShmNode->nRegion<nReqRegion ){
-      int nMap = szRegion*nShmPerMap;
-      int i;
-      void *pMem;
-      if( pShmNode->hShm>=0 ){
-        pMem = osMmap(0, nMap,
-            pShmNode->isReadonly ? PROT_READ : PROT_READ|PROT_WRITE, 
-            MAP_SHARED, pShmNode->hShm, szRegion*(i64)pShmNode->nRegion
-        );
-        if( pMem==MAP_FAILED ){
-          rc = unixLogError(SQLITE_IOERR_SHMMAP, "mmap", pShmNode->zFilename);
-          goto shmpage_out;
-        }
-      }else{
-        pMem = tdsqlite3_malloc64(nMap);
-        if( pMem==0 ){
-          rc = SQLITE_NOMEM_BKPT;
-          goto shmpage_out;
-        }
-        memset(pMem, 0, nMap);
-      }
-
-      for(i=0; i<nShmPerMap; i++){
-        pShmNode->apRegion[pShmNode->nRegion+i] = &((char*)pMem)[szRegion*i];
-      }
-      pShmNode->nRegion += nShmPerMap;
-    }
-  }
-
-shmpage_out:
-  if( pShmNode->nRegion>iRegion ){
-    *pp = pShmNode->apRegion[iRegion];
-  }else{
-    *pp = 0;
-  }
-  if( pShmNode->isReadonly && rc==SQLITE_OK ) rc = SQLITE_READONLY;
-  tdsqlite3_mutex_leave(pShmNode->pShmMutex);
-  return rc;
-}
-
-/*
-** Change the lock state for a shared-memory segment.
-**
-** Note that the relationship between SHAREd and EXCLUSIVE locks is a little
-** different here than in posix.  In xShmLock(), one can go from unlocked
-** to shared and back or from unlocked to exclusive and back.  But one may
-** not go from shared to exclusive or from exclusive to shared.
-*/
-static int unixShmLock(
-  tdsqlite3_file *fd,          /* Database file holding the shared memory */
-  int ofst,                  /* First lock to acquire or release */
-  int n,                     /* Number of locks to acquire or release */
-  int flags                  /* What to do with the lock */
-){
-  unixFile *pDbFd = (unixFile*)fd;      /* Connection holding shared memory */
-  unixShm *p = pDbFd->pShm;             /* The shared memory being locked */
-  unixShm *pX;                          /* For looping over all siblings */
-  unixShmNode *pShmNode = p->pShmNode;  /* The underlying file iNode */
-  int rc = SQLITE_OK;                   /* Result code */
-  u16 mask;                             /* Mask of locks to take or release */
-
-  assert( pShmNode==pDbFd->pInode->pShmNode );
-  assert( pShmNode->pInode==pDbFd->pInode );
-  assert( ofst>=0 && ofst+n<=SQLITE_SHM_NLOCK );
-  assert( n>=1 );
-  assert( flags==(SQLITE_SHM_LOCK | SQLITE_SHM_SHARED)
-       || flags==(SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE)
-       || flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED)
-       || flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE) );
-  assert( n==1 || (flags & SQLITE_SHM_EXCLUSIVE)!=0 );
-  assert( pShmNode->hShm>=0 || pDbFd->pInode->bProcessLock==1 );
-  assert( pShmNode->hShm<0 || pDbFd->pInode->bProcessLock==0 );
-
-  mask = (1<<(ofst+n)) - (1<<ofst);
-  assert( n>1 || mask==(1<<ofst) );
-  tdsqlite3_mutex_enter(pShmNode->pShmMutex);
-  if( flags & SQLITE_SHM_UNLOCK ){
-    u16 allMask = 0; /* Mask of locks held by siblings */
-
-    /* See if any siblings hold this same lock */
-    for(pX=pShmNode->pFirst; pX; pX=pX->pNext){
-      if( pX==p ) continue;
-      assert( (pX->exclMask & (p->exclMask|p->sharedMask))==0 );
-      allMask |= pX->sharedMask;
-    }
-
-    /* Unlock the system-level locks */
-    if( (mask & allMask)==0 ){
-      rc = unixShmSystemLock(pDbFd, F_UNLCK, ofst+UNIX_SHM_BASE, n);
-    }else{
-      rc = SQLITE_OK;
-    }
-
-    /* Undo the local locks */
-    if( rc==SQLITE_OK ){
-      p->exclMask &= ~mask;
-      p->sharedMask &= ~mask;
-    } 
-  }else if( flags & SQLITE_SHM_SHARED ){
-    u16 allShared = 0;  /* Union of locks held by connections other than "p" */
-
-    /* Find out which shared locks are already held by sibling connections.
-    ** If any sibling already holds an exclusive lock, go ahead and return
-    ** SQLITE_BUSY.
-    */
-    for(pX=pShmNode->pFirst; pX; pX=pX->pNext){
-      if( (pX->exclMask & mask)!=0 ){
-        rc = SQLITE_BUSY;
-        break;
-      }
-      allShared |= pX->sharedMask;
-    }
-
-    /* Get shared locks at the system level, if necessary */
-    if( rc==SQLITE_OK ){
-      if( (allShared & mask)==0 ){
-        rc = unixShmSystemLock(pDbFd, F_RDLCK, ofst+UNIX_SHM_BASE, n);
-      }else{
-        rc = SQLITE_OK;
-      }
-    }
-
-    /* Get the local shared locks */
-    if( rc==SQLITE_OK ){
-      p->sharedMask |= mask;
-    }
-  }else{
-    /* Make sure no sibling connections hold locks that will block this
-    ** lock.  If any do, return SQLITE_BUSY right away.
-    */
-    for(pX=pShmNode->pFirst; pX; pX=pX->pNext){
-      if( (pX->exclMask & mask)!=0 || (pX->sharedMask & mask)!=0 ){
-        rc = SQLITE_BUSY;
-        break;
-      }
-    }
-  
-    /* Get the exclusive locks at the system level.  Then if successful
-    ** also mark the local connection as being locked.
-    */
-    if( rc==SQLITE_OK ){
-      rc = unixShmSystemLock(pDbFd, F_WRLCK, ofst+UNIX_SHM_BASE, n);
-      if( rc==SQLITE_OK ){
-        assert( (p->sharedMask & mask)==0 );
-        p->exclMask |= mask;
-      }
-    }
-  }
-  tdsqlite3_mutex_leave(pShmNode->pShmMutex);
-  OSTRACE(("SHM-LOCK shmid-%d, pid-%d got %03x,%03x\n",
-           p->id, osGetpid(0), p->sharedMask, p->exclMask));
-  return rc;
-}
-
-/*
-** Implement a memory barrier or memory fence on shared memory.  
-**
-** All loads and stores begun before the barrier must complete before
-** any load or store begun after the barrier.
-*/
-static void unixShmBarrier(
-  tdsqlite3_file *fd                /* Database file holding the shared memory */
-){
-  UNUSED_PARAMETER(fd);
-  tdsqlite3MemoryBarrier();         /* compiler-defined memory barrier */
-  assert( fd->pMethods->xLock==nolockLock 
-       || unixFileMutexNotheld((unixFile*)fd) 
-  );
-  unixEnterMutex();               /* Also mutex, for redundancy */
-  unixLeaveMutex();
-}
-
-/*
-** Close a connection to shared-memory.  Delete the underlying 
-** storage if deleteFlag is true.
-**
-** If there is no shared memory associated with the connection then this
-** routine is a harmless no-op.
-*/
-static int unixShmUnmap(
-  tdsqlite3_file *fd,               /* The underlying database file */
-  int deleteFlag                  /* Delete shared-memory if true */
-){
-  unixShm *p;                     /* The connection to be closed */
-  unixShmNode *pShmNode;          /* The underlying shared-memory file */
-  unixShm **pp;                   /* For looping over sibling connections */
-  unixFile *pDbFd;                /* The underlying database file */
-
-  pDbFd = (unixFile*)fd;
-  p = pDbFd->pShm;
-  if( p==0 ) return SQLITE_OK;
-  pShmNode = p->pShmNode;
-
-  assert( pShmNode==pDbFd->pInode->pShmNode );
-  assert( pShmNode->pInode==pDbFd->pInode );
-
-  /* Remove connection p from the set of connections associated
-  ** with pShmNode */
-  tdsqlite3_mutex_enter(pShmNode->pShmMutex);
-  for(pp=&pShmNode->pFirst; (*pp)!=p; pp = &(*pp)->pNext){}
-  *pp = p->pNext;
-
-  /* Free the connection p */
-  tdsqlite3_free(p);
-  pDbFd->pShm = 0;
-  tdsqlite3_mutex_leave(pShmNode->pShmMutex);
-
-  /* If pShmNode->nRef has reached 0, then close the underlying
-  ** shared-memory file, too */
-  assert( unixFileMutexNotheld(pDbFd) );
-  unixEnterMutex();
-  assert( pShmNode->nRef>0 );
-  pShmNode->nRef--;
-  if( pShmNode->nRef==0 ){
-    if( deleteFlag && pShmNode->hShm>=0 ){
-      osUnlink(pShmNode->zFilename);
-    }
-    unixShmPurge(pDbFd);
-  }
-  unixLeaveMutex();
-
-  return SQLITE_OK;
-}
-
-
-#else
-# define unixShmMap     0
-# define unixShmLock    0
-# define unixShmBarrier 0
-# define unixShmUnmap   0
-#endif /* #ifndef SQLITE_OMIT_WAL */
-
-#if SQLITE_MAX_MMAP_SIZE>0
-/*
-** If it is currently memory mapped, unmap file pFd.
-*/
-static void unixUnmapfile(unixFile *pFd){
-  assert( pFd->nFetchOut==0 );
-  if( pFd->pMapRegion ){
-    osMunmap(pFd->pMapRegion, pFd->mmapSizeActual);
-    pFd->pMapRegion = 0;
-    pFd->mmapSize = 0;
-    pFd->mmapSizeActual = 0;
-  }
-}
-
-/*
-** Attempt to set the size of the memory mapping maintained by file 
-** descriptor pFd to nNew bytes. Any existing mapping is discarded.
-**
-** If successful, this function sets the following variables:
-**
-**       unixFile.pMapRegion
-**       unixFile.mmapSize
-**       unixFile.mmapSizeActual
-**
-** If unsuccessful, an error message is logged via tdsqlite3_log() and
-** the three variables above are zeroed. In this case SQLite should
-** continue accessing the database using the xRead() and xWrite()
-** methods.
-*/
-static void unixRemapfile(
-  unixFile *pFd,                  /* File descriptor object */
-  i64 nNew                        /* Required mapping size */
-){
-  const char *zErr = "mmap";
-  int h = pFd->h;                      /* File descriptor open on db file */
-  u8 *pOrig = (u8 *)pFd->pMapRegion;   /* Pointer to current file mapping */
-  i64 nOrig = pFd->mmapSizeActual;     /* Size of pOrig region in bytes */
-  u8 *pNew = 0;                        /* Location of new mapping */
-  int flags = PROT_READ;               /* Flags to pass to mmap() */
-
-  assert( pFd->nFetchOut==0 );
-  assert( nNew>pFd->mmapSize );
-  assert( nNew<=pFd->mmapSizeMax );
-  assert( nNew>0 );
-  assert( pFd->mmapSizeActual>=pFd->mmapSize );
-  assert( MAP_FAILED!=0 );
-
-#ifdef SQLITE_MMAP_READWRITE
-  if( (pFd->ctrlFlags & UNIXFILE_RDONLY)==0 ) flags |= PROT_WRITE;
-#endif
-
-  if( pOrig ){
-#if HAVE_MREMAP
-    i64 nReuse = pFd->mmapSize;
-#else
-    const int szSyspage = osGetpagesize();
-    i64 nReuse = (pFd->mmapSize & ~(szSyspage-1));
-#endif
-    u8 *pReq = &pOrig[nReuse];
-
-    /* Unmap any pages of the existing mapping that cannot be reused. */
-    if( nReuse!=nOrig ){
-      osMunmap(pReq, nOrig-nReuse);
-    }
-
-#if HAVE_MREMAP
-    pNew = osMremap(pOrig, nReuse, nNew, MREMAP_MAYMOVE);
-    zErr = "mremap";
-#else
-    pNew = osMmap(pReq, nNew-nReuse, flags, MAP_SHARED, h, nReuse);
-    if( pNew!=MAP_FAILED ){
-      if( pNew!=pReq ){
-        osMunmap(pNew, nNew - nReuse);
-        pNew = 0;
-      }else{
-        pNew = pOrig;
-      }
-    }
-#endif
-
-    /* The attempt to extend the existing mapping failed. Free it. */
-    if( pNew==MAP_FAILED || pNew==0 ){
-      osMunmap(pOrig, nReuse);
-    }
-  }
-
-  /* If pNew is still NULL, try to create an entirely new mapping. */
-  if( pNew==0 ){
-    pNew = osMmap(0, nNew, flags, MAP_SHARED, h, 0);
-  }
-
-  if( pNew==MAP_FAILED ){
-    pNew = 0;
-    nNew = 0;
-    unixLogError(SQLITE_OK, zErr, pFd->zPath);
-
-    /* If the mmap() above failed, assume that all subsequent mmap() calls
-    ** will probably fail too. Fall back to using xRead/xWrite exclusively
-    ** in this case.  */
-    pFd->mmapSizeMax = 0;
-  }
-  pFd->pMapRegion = (void *)pNew;
-  pFd->mmapSize = pFd->mmapSizeActual = nNew;
-}
-
-/*
-** Memory map or remap the file opened by file-descriptor pFd (if the file
-** is already mapped, the existing mapping is replaced by the new). Or, if 
-** there already exists a mapping for this file, and there are still 
-** outstanding xFetch() references to it, this function is a no-op.
-**
-** If parameter nByte is non-negative, then it is the requested size of 
-** the mapping to create. Otherwise, if nByte is less than zero, then the 
-** requested size is the size of the file on disk. The actual size of the
-** created mapping is either the requested size or the value configured 
-** using SQLITE_FCNTL_MMAP_LIMIT, whichever is smaller.
-**
-** SQLITE_OK is returned if no error occurs (even if the mapping is not
-** recreated as a result of outstanding references) or an SQLite error
-** code otherwise.
-*/
-static int unixMapfile(unixFile *pFd, i64 nMap){
-  assert( nMap>=0 || pFd->nFetchOut==0 );
-  assert( nMap>0 || (pFd->mmapSize==0 && pFd->pMapRegion==0) );
-  if( pFd->nFetchOut>0 ) return SQLITE_OK;
-
-  if( nMap<0 ){
-    struct stat statbuf;          /* Low-level file information */
-    if( osFstat(pFd->h, &statbuf) ){
-      return SQLITE_IOERR_FSTAT;
-    }
-    nMap = statbuf.st_size;
-  }
-  if( nMap>pFd->mmapSizeMax ){
-    nMap = pFd->mmapSizeMax;
-  }
-
-  assert( nMap>0 || (pFd->mmapSize==0 && pFd->pMapRegion==0) );
-  if( nMap!=pFd->mmapSize ){
-    unixRemapfile(pFd, nMap);
-  }
-
-  return SQLITE_OK;
-}
-#endif /* SQLITE_MAX_MMAP_SIZE>0 */
-
-/*
-** If possible, return a pointer to a mapping of file fd starting at offset
-** iOff. The mapping must be valid for at least nAmt bytes.
-**
-** If such a pointer can be obtained, store it in *pp and return SQLITE_OK.
-** Or, if one cannot but no error occurs, set *pp to 0 and return SQLITE_OK.
-** Finally, if an error does occur, return an SQLite error code. The final
-** value of *pp is undefined in this case.
-**
-** If this function does return a pointer, the caller must eventually 
-** release the reference by calling unixUnfetch().
-*/
-static int unixFetch(tdsqlite3_file *fd, i64 iOff, int nAmt, void **pp){
-#if SQLITE_MAX_MMAP_SIZE>0
-  unixFile *pFd = (unixFile *)fd;   /* The underlying database file */
-#endif
-  *pp = 0;
-
-#if SQLITE_MAX_MMAP_SIZE>0
-  if( pFd->mmapSizeMax>0 ){
-    if( pFd->pMapRegion==0 ){
-      int rc = unixMapfile(pFd, -1);
-      if( rc!=SQLITE_OK ) return rc;
-    }
-    if( pFd->mmapSize >= iOff+nAmt ){
-      *pp = &((u8 *)pFd->pMapRegion)[iOff];
-      pFd->nFetchOut++;
-    }
-  }
-#endif
-  return SQLITE_OK;
-}
-
-/*
-** If the third argument is non-NULL, then this function releases a 
-** reference obtained by an earlier call to unixFetch(). The second
-** argument passed to this function must be the same as the corresponding
-** argument that was passed to the unixFetch() invocation. 
-**
-** Or, if the third argument is NULL, then this function is being called 
-** to inform the VFS layer that, according to POSIX, any existing mapping 
-** may now be invalid and should be unmapped.
-*/
-static int unixUnfetch(tdsqlite3_file *fd, i64 iOff, void *p){
-#if SQLITE_MAX_MMAP_SIZE>0
-  unixFile *pFd = (unixFile *)fd;   /* The underlying database file */
-  UNUSED_PARAMETER(iOff);
-
-  /* If p==0 (unmap the entire file) then there must be no outstanding 
-  ** xFetch references. Or, if p!=0 (meaning it is an xFetch reference),
-  ** then there must be at least one outstanding.  */
-  assert( (p==0)==(pFd->nFetchOut==0) );
-
-  /* If p!=0, it must match the iOff value. */
-  assert( p==0 || p==&((u8 *)pFd->pMapRegion)[iOff] );
-
-  if( p ){
-    pFd->nFetchOut--;
-  }else{
-    unixUnmapfile(pFd);
-  }
-
-  assert( pFd->nFetchOut>=0 );
-#else
-  UNUSED_PARAMETER(fd);
-  UNUSED_PARAMETER(p);
-  UNUSED_PARAMETER(iOff);
-#endif
-  return SQLITE_OK;
-}
-
-/*
-** Here ends the implementation of all tdsqlite3_file methods.
-**
-********************** End tdsqlite3_file Methods *******************************
-******************************************************************************/
-
-/*
-** This division contains definitions of tdsqlite3_io_methods objects that
-** implement various file locking strategies.  It also contains definitions
-** of "finder" functions.  A finder-function is used to locate the appropriate
-** tdsqlite3_io_methods object for a particular database file.  The pAppData
-** field of the tdsqlite3_vfs VFS objects are initialized to be pointers to
-** the correct finder-function for that VFS.
-**
-** Most finder functions return a pointer to a fixed tdsqlite3_io_methods
-** object.  The only interesting finder-function is autolockIoFinder, which
-** looks at the filesystem type and tries to guess the best locking
-** strategy from that.
-**
-** For finder-function F, two objects are created:
-**
-**    (1) The real finder-function named "FImpt()".
-**
-**    (2) A constant pointer to this function named just "F".
-**
-**
-** A pointer to the F pointer is used as the pAppData value for VFS
-** objects.  We have to do this instead of letting pAppData point
-** directly at the finder-function since C90 rules prevent a void*
-** from be cast into a function pointer.
-**
-**
-** Each instance of this macro generates two objects:
-**
-**   *  A constant tdsqlite3_io_methods object call METHOD that has locking
-**      methods CLOSE, LOCK, UNLOCK, CKRESLOCK.
-**
-**   *  An I/O method finder function called FINDER that returns a pointer
-**      to the METHOD object in the previous bullet.
-*/
-#define IOMETHODS(FINDER,METHOD,VERSION,CLOSE,LOCK,UNLOCK,CKLOCK,SHMMAP)     \
-static const tdsqlite3_io_methods METHOD = {                                   \
-   VERSION,                    /* iVersion */                                \
-   CLOSE,                      /* xClose */                                  \
-   unixRead,                   /* xRead */                                   \
-   unixWrite,                  /* xWrite */                                  \
-   unixTruncate,               /* xTruncate */                               \
-   unixSync,                   /* xSync */                                   \
-   unixFileSize,               /* xFileSize */                               \
-   LOCK,                       /* xLock */                                   \
-   UNLOCK,                     /* xUnlock */                                 \
-   CKLOCK,                     /* xCheckReservedLock */                      \
-   unixFileControl,            /* xFileControl */                            \
-   unixSectorSize,             /* xSectorSize */                             \
-   unixDeviceCharacteristics,  /* xDeviceCapabilities */                     \
-   SHMMAP,                     /* xShmMap */                                 \
-   unixShmLock,                /* xShmLock */                                \
-   unixShmBarrier,             /* xShmBarrier */                             \
-   unixShmUnmap,               /* xShmUnmap */                               \
-   unixFetch,                  /* xFetch */                                  \
-   unixUnfetch,                /* xUnfetch */                                \
-};                                                                           \
-static const tdsqlite3_io_methods *FINDER##Impl(const char *z, unixFile *p){   \
-  UNUSED_PARAMETER(z); UNUSED_PARAMETER(p);                                  \
-  return &METHOD;                                                            \
-}                                                                            \
-static const tdsqlite3_io_methods *(*const FINDER)(const char*,unixFile *p)    \
-    = FINDER##Impl;
-
-/*
-** Here are all of the tdsqlite3_io_methods objects for each of the
-** locking strategies.  Functions that return pointers to these methods
-** are also created.
-*/
-IOMETHODS(
-  posixIoFinder,            /* Finder function name */
-  posixIoMethods,           /* tdsqlite3_io_methods object name */
-  3,                        /* shared memory and mmap are enabled */
-  unixClose,                /* xClose method */
-  unixLock,                 /* xLock method */
-  unixUnlock,               /* xUnlock method */
-  unixCheckReservedLock,    /* xCheckReservedLock method */
-  unixShmMap                /* xShmMap method */
-)
-IOMETHODS(
-  nolockIoFinder,           /* Finder function name */
-  nolockIoMethods,          /* tdsqlite3_io_methods object name */
-  3,                        /* shared memory and mmap are enabled */
-  nolockClose,              /* xClose method */
-  nolockLock,               /* xLock method */
-  nolockUnlock,             /* xUnlock method */
-  nolockCheckReservedLock,  /* xCheckReservedLock method */
-  0                         /* xShmMap method */
-)
-IOMETHODS(
-  dotlockIoFinder,          /* Finder function name */
-  dotlockIoMethods,         /* tdsqlite3_io_methods object name */
-  1,                        /* shared memory is disabled */
-  dotlockClose,             /* xClose method */
-  dotlockLock,              /* xLock method */
-  dotlockUnlock,            /* xUnlock method */
-  dotlockCheckReservedLock, /* xCheckReservedLock method */
-  0                         /* xShmMap method */
-)
-
-#if SQLITE_ENABLE_LOCKING_STYLE
-IOMETHODS(
-  flockIoFinder,            /* Finder function name */
-  flockIoMethods,           /* tdsqlite3_io_methods object name */
-  1,                        /* shared memory is disabled */
-  flockClose,               /* xClose method */
-  flockLock,                /* xLock method */
-  flockUnlock,              /* xUnlock method */
-  flockCheckReservedLock,   /* xCheckReservedLock method */
-  0                         /* xShmMap method */
-)
-#endif
-
-#if OS_VXWORKS
-IOMETHODS(
-  semIoFinder,              /* Finder function name */
-  semIoMethods,             /* tdsqlite3_io_methods object name */
-  1,                        /* shared memory is disabled */
-  semXClose,                /* xClose method */
-  semXLock,                 /* xLock method */
-  semXUnlock,               /* xUnlock method */
-  semXCheckReservedLock,    /* xCheckReservedLock method */
-  0                         /* xShmMap method */
-)
-#endif
-
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-IOMETHODS(
-  afpIoFinder,              /* Finder function name */
-  afpIoMethods,             /* tdsqlite3_io_methods object name */
-  1,                        /* shared memory is disabled */
-  afpClose,                 /* xClose method */
-  afpLock,                  /* xLock method */
-  afpUnlock,                /* xUnlock method */
-  afpCheckReservedLock,     /* xCheckReservedLock method */
-  0                         /* xShmMap method */
-)
-#endif
-
-/*
-** The proxy locking method is a "super-method" in the sense that it
-** opens secondary file descriptors for the conch and lock files and
-** it uses proxy, dot-file, AFP, and flock() locking methods on those
-** secondary files.  For this reason, the division that implements
-** proxy locking is located much further down in the file.  But we need
-** to go ahead and define the tdsqlite3_io_methods and finder function
-** for proxy locking here.  So we forward declare the I/O methods.
-*/
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-static int proxyClose(tdsqlite3_file*);
-static int proxyLock(tdsqlite3_file*, int);
-static int proxyUnlock(tdsqlite3_file*, int);
-static int proxyCheckReservedLock(tdsqlite3_file*, int*);
-IOMETHODS(
-  proxyIoFinder,            /* Finder function name */
-  proxyIoMethods,           /* tdsqlite3_io_methods object name */
-  1,                        /* shared memory is disabled */
-  proxyClose,               /* xClose method */
-  proxyLock,                /* xLock method */
-  proxyUnlock,              /* xUnlock method */
-  proxyCheckReservedLock,   /* xCheckReservedLock method */
-  0                         /* xShmMap method */
-)
-#endif
-
-/* nfs lockd on OSX 10.3+ doesn't clear write locks when a read lock is set */
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-IOMETHODS(
-  nfsIoFinder,               /* Finder function name */
-  nfsIoMethods,              /* tdsqlite3_io_methods object name */
-  1,                         /* shared memory is disabled */
-  unixClose,                 /* xClose method */
-  unixLock,                  /* xLock method */
-  nfsUnlock,                 /* xUnlock method */
-  unixCheckReservedLock,     /* xCheckReservedLock method */
-  0                          /* xShmMap method */
-)
-#endif
-
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-/* 
-** This "finder" function attempts to determine the best locking strategy 
-** for the database file "filePath".  It then returns the tdsqlite3_io_methods
-** object that implements that strategy.
-**
-** This is for MacOSX only.
-*/
-static const tdsqlite3_io_methods *autolockIoFinderImpl(
-  const char *filePath,    /* name of the database file */
-  unixFile *pNew           /* open file object for the database file */
-){
-  static const struct Mapping {
-    const char *zFilesystem;              /* Filesystem type name */
-    const tdsqlite3_io_methods *pMethods;   /* Appropriate locking method */
-  } aMap[] = {
-    { "hfs",    &posixIoMethods },
-    { "ufs",    &posixIoMethods },
-    { "afpfs",  &afpIoMethods },
-    { "smbfs",  &afpIoMethods },
-    { "webdav", &nolockIoMethods },
-    { 0, 0 }
-  };
-  int i;
-  struct statfs fsInfo;
-  struct flock lockInfo;
-
-  if( !filePath ){
-    /* If filePath==NULL that means we are dealing with a transient file
-    ** that does not need to be locked. */
-    return &nolockIoMethods;
-  }
-  if( statfs(filePath, &fsInfo) != -1 ){
-    if( fsInfo.f_flags & MNT_RDONLY ){
-      return &nolockIoMethods;
-    }
-    for(i=0; aMap[i].zFilesystem; i++){
-      if( strcmp(fsInfo.f_fstypename, aMap[i].zFilesystem)==0 ){
-        return aMap[i].pMethods;
-      }
-    }
-  }
-
-  /* Default case. Handles, amongst others, "nfs".
-  ** Test byte-range lock using fcntl(). If the call succeeds, 
-  ** assume that the file-system supports POSIX style locks. 
-  */
-  lockInfo.l_len = 1;
-  lockInfo.l_start = 0;
-  lockInfo.l_whence = SEEK_SET;
-  lockInfo.l_type = F_RDLCK;
-  if( osFcntl(pNew->h, F_GETLK, &lockInfo)!=-1 ) {
-    if( strcmp(fsInfo.f_fstypename, "nfs")==0 ){
-      return &nfsIoMethods;
-    } else {
-      return &posixIoMethods;
-    }
-  }else{
-    return &dotlockIoMethods;
-  }
-}
-static const tdsqlite3_io_methods 
-  *(*const autolockIoFinder)(const char*,unixFile*) = autolockIoFinderImpl;
-
-#endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */
-
-#if OS_VXWORKS
-/*
-** This "finder" function for VxWorks checks to see if posix advisory
-** locking works.  If it does, then that is what is used.  If it does not
-** work, then fallback to named semaphore locking.
-*/
-static const tdsqlite3_io_methods *vxworksIoFinderImpl(
-  const char *filePath,    /* name of the database file */
-  unixFile *pNew           /* the open file object */
-){
-  struct flock lockInfo;
-
-  if( !filePath ){
-    /* If filePath==NULL that means we are dealing with a transient file
-    ** that does not need to be locked. */
-    return &nolockIoMethods;
-  }
-
-  /* Test if fcntl() is supported and use POSIX style locks.
-  ** Otherwise fall back to the named semaphore method.
-  */
-  lockInfo.l_len = 1;
-  lockInfo.l_start = 0;
-  lockInfo.l_whence = SEEK_SET;
-  lockInfo.l_type = F_RDLCK;
-  if( osFcntl(pNew->h, F_GETLK, &lockInfo)!=-1 ) {
-    return &posixIoMethods;
-  }else{
-    return &semIoMethods;
-  }
-}
-static const tdsqlite3_io_methods 
-  *(*const vxworksIoFinder)(const char*,unixFile*) = vxworksIoFinderImpl;
-
-#endif /* OS_VXWORKS */
-
-/*
-** An abstract type for a pointer to an IO method finder function:
-*/
-typedef const tdsqlite3_io_methods *(*finder_type)(const char*,unixFile*);
-
-
-/****************************************************************************
-**************************** tdsqlite3_vfs methods ****************************
-**
-** This division contains the implementation of methods on the
-** tdsqlite3_vfs object.
-*/
-
-/*
-** Initialize the contents of the unixFile structure pointed to by pId.
-*/
-static int fillInUnixFile(
-  tdsqlite3_vfs *pVfs,      /* Pointer to vfs object */
-  int h,                  /* Open file descriptor of file being opened */
-  tdsqlite3_file *pId,      /* Write to the unixFile structure here */
-  const char *zFilename,  /* Name of the file being opened */
-  int ctrlFlags           /* Zero or more UNIXFILE_* values */
-){
-  const tdsqlite3_io_methods *pLockingStyle;
-  unixFile *pNew = (unixFile *)pId;
-  int rc = SQLITE_OK;
-
-  assert( pNew->pInode==NULL );
-
-  /* No locking occurs in temporary files */
-  assert( zFilename!=0 || (ctrlFlags & UNIXFILE_NOLOCK)!=0 );
-
-  OSTRACE(("OPEN    %-3d %s\n", h, zFilename));
-  pNew->h = h;
-  pNew->pVfs = pVfs;
-  pNew->zPath = zFilename;
-  pNew->ctrlFlags = (u8)ctrlFlags;
-#if SQLITE_MAX_MMAP_SIZE>0
-  pNew->mmapSizeMax = tdsqlite3GlobalConfig.szMmap;
-#endif
-  if( tdsqlite3_uri_boolean(((ctrlFlags & UNIXFILE_URI) ? zFilename : 0),
-                           "psow", SQLITE_POWERSAFE_OVERWRITE) ){
-    pNew->ctrlFlags |= UNIXFILE_PSOW;
-  }
-  if( strcmp(pVfs->zName,"unix-excl")==0 ){
-    pNew->ctrlFlags |= UNIXFILE_EXCL;
-  }
-
-#if OS_VXWORKS
-  pNew->pId = vxworksFindFileId(zFilename);
-  if( pNew->pId==0 ){
-    ctrlFlags |= UNIXFILE_NOLOCK;
-    rc = SQLITE_NOMEM_BKPT;
-  }
-#endif
-
-  if( ctrlFlags & UNIXFILE_NOLOCK ){
-    pLockingStyle = &nolockIoMethods;
-  }else{
-    pLockingStyle = (**(finder_type*)pVfs->pAppData)(zFilename, pNew);
-#if SQLITE_ENABLE_LOCKING_STYLE
-    /* Cache zFilename in the locking context (AFP and dotlock override) for
-    ** proxyLock activation is possible (remote proxy is based on db name)
-    ** zFilename remains valid until file is closed, to support */
-    pNew->lockingContext = (void*)zFilename;
-#endif
-  }
-
-  if( pLockingStyle == &posixIoMethods
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-    || pLockingStyle == &nfsIoMethods
-#endif
-  ){
-    unixEnterMutex();
-    rc = findInodeInfo(pNew, &pNew->pInode);
-    if( rc!=SQLITE_OK ){
-      /* If an error occurred in findInodeInfo(), close the file descriptor
-      ** immediately, before releasing the mutex. findInodeInfo() may fail
-      ** in two scenarios:
-      **
-      **   (a) A call to fstat() failed.
-      **   (b) A malloc failed.
-      **
-      ** Scenario (b) may only occur if the process is holding no other
-      ** file descriptors open on the same file. If there were other file
-      ** descriptors on this file, then no malloc would be required by
-      ** findInodeInfo(). If this is the case, it is quite safe to close
-      ** handle h - as it is guaranteed that no posix locks will be released
-      ** by doing so.
-      **
-      ** If scenario (a) caused the error then things are not so safe. The
-      ** implicit assumption here is that if fstat() fails, things are in
-      ** such bad shape that dropping a lock or two doesn't matter much.
-      */
-      robust_close(pNew, h, __LINE__);
-      h = -1;
-    }
-    unixLeaveMutex();
-  }
-
-#if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
-  else if( pLockingStyle == &afpIoMethods ){
-    /* AFP locking uses the file path so it needs to be included in
-    ** the afpLockingContext.
-    */
-    afpLockingContext *pCtx;
-    pNew->lockingContext = pCtx = tdsqlite3_malloc64( sizeof(*pCtx) );
-    if( pCtx==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-    }else{
-      /* NB: zFilename exists and remains valid until the file is closed
-      ** according to requirement F11141.  So we do not need to make a
-      ** copy of the filename. */
-      pCtx->dbPath = zFilename;
-      pCtx->reserved = 0;
-      srandomdev();
-      unixEnterMutex();
-      rc = findInodeInfo(pNew, &pNew->pInode);
-      if( rc!=SQLITE_OK ){
-        tdsqlite3_free(pNew->lockingContext);
-        robust_close(pNew, h, __LINE__);
-        h = -1;
-      }
-      unixLeaveMutex();        
-    }
-  }
-#endif
-
-  else if( pLockingStyle == &dotlockIoMethods ){
-    /* Dotfile locking uses the file path so it needs to be included in
-    ** the dotlockLockingContext 
-    */
-    char *zLockFile;
-    int nFilename;
-    assert( zFilename!=0 );
-    nFilename = (int)strlen(zFilename) + 6;
-    zLockFile = (char *)tdsqlite3_malloc64(nFilename);
-    if( zLockFile==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-    }else{
-      tdsqlite3_snprintf(nFilename, zLockFile, "%s" DOTLOCK_SUFFIX, zFilename);
-    }
-    pNew->lockingContext = zLockFile;
-  }
-
-#if OS_VXWORKS
-  else if( pLockingStyle == &semIoMethods ){
-    /* Named semaphore locking uses the file path so it needs to be
-    ** included in the semLockingContext
-    */
-    unixEnterMutex();
-    rc = findInodeInfo(pNew, &pNew->pInode);
-    if( (rc==SQLITE_OK) && (pNew->pInode->pSem==NULL) ){
-      char *zSemName = pNew->pInode->aSemName;
-      int n;
-      tdsqlite3_snprintf(MAX_PATHNAME, zSemName, "/%s.sem",
-                       pNew->pId->zCanonicalName);
-      for( n=1; zSemName[n]; n++ )
-        if( zSemName[n]=='/' ) zSemName[n] = '_';
-      pNew->pInode->pSem = sem_open(zSemName, O_CREAT, 0666, 1);
-      if( pNew->pInode->pSem == SEM_FAILED ){
-        rc = SQLITE_NOMEM_BKPT;
-        pNew->pInode->aSemName[0] = '\0';
-      }
-    }
-    unixLeaveMutex();
-  }
-#endif
-  
-  storeLastErrno(pNew, 0);
-#if OS_VXWORKS
-  if( rc!=SQLITE_OK ){
-    if( h>=0 ) robust_close(pNew, h, __LINE__);
-    h = -1;
-    osUnlink(zFilename);
-    pNew->ctrlFlags |= UNIXFILE_DELETE;
-  }
-#endif
-  if( rc!=SQLITE_OK ){
-    if( h>=0 ) robust_close(pNew, h, __LINE__);
-  }else{
-    pNew->pMethod = pLockingStyle;
-    OpenCounter(+1);
-    verifyDbFile(pNew);
-  }
-  return rc;
-}
-
-/*
-** Return the name of a directory in which to put temporary files.
-** If no suitable temporary file directory can be found, return NULL.
-*/
-static const char *unixTempFileDir(void){
-  static const char *azDirs[] = {
-     0,
-     0,
-     "/var/tmp",
-     "/usr/tmp",
-     "/tmp",
-     "."
-  };
-  unsigned int i = 0;
-  struct stat buf;
-  const char *zDir = tdsqlite3_temp_directory;
-
-  if( !azDirs[0] ) azDirs[0] = getenv("SQLITE_TMPDIR");
-  if( !azDirs[1] ) azDirs[1] = getenv("TMPDIR");
-  while(1){
-    if( zDir!=0
-     && osStat(zDir, &buf)==0
-     && S_ISDIR(buf.st_mode)
-     && osAccess(zDir, 03)==0
-    ){
-      return zDir;
-    }
-    if( i>=sizeof(azDirs)/sizeof(azDirs[0]) ) break;
-    zDir = azDirs[i++];
-  }
-  return 0;
-}
-
-/*
-** Create a temporary file name in zBuf.  zBuf must be allocated
-** by the calling process and must be big enough to hold at least
-** pVfs->mxPathname bytes.
-*/
-static int unixGetTempname(int nBuf, char *zBuf){
-  const char *zDir;
-  int iLimit = 0;
-
-  /* It's odd to simulate an io-error here, but really this is just
-  ** using the io-error infrastructure to test that SQLite handles this
-  ** function failing. 
-  */
-  zBuf[0] = 0;
-  SimulateIOError( return SQLITE_IOERR );
-
-  zDir = unixTempFileDir();
-  if( zDir==0 ) return SQLITE_IOERR_GETTEMPPATH;
-  do{
-    u64 r;
-    tdsqlite3_randomness(sizeof(r), &r);
-    assert( nBuf>2 );
-    zBuf[nBuf-2] = 0;
-    tdsqlite3_snprintf(nBuf, zBuf, "%s/"SQLITE_TEMP_FILE_PREFIX"%llx%c",
-                     zDir, r, 0);
-    if( zBuf[nBuf-2]!=0 || (iLimit++)>10 ) return SQLITE_ERROR;
-  }while( osAccess(zBuf,0)==0 );
-  return SQLITE_OK;
-}
-
-#if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
-/*
-** Routine to transform a unixFile into a proxy-locking unixFile.
-** Implementation in the proxy-lock division, but used by unixOpen()
-** if SQLITE_PREFER_PROXY_LOCKING is defined.
-*/
-static int proxyTransformUnixFile(unixFile*, const char*);
-#endif
-
-/*
-** Search for an unused file descriptor that was opened on the database 
-** file (not a journal or master-journal file) identified by pathname
-** zPath with SQLITE_OPEN_XXX flags matching those passed as the second
-** argument to this function.
-**
-** Such a file descriptor may exist if a database connection was closed
-** but the associated file descriptor could not be closed because some
-** other file descriptor open on the same file is holding a file-lock.
-** Refer to comments in the unixClose() function and the lengthy comment
-** describing "Posix Advisory Locking" at the start of this file for 
-** further details. Also, ticket #4018.
-**
-** If a suitable file descriptor is found, then it is returned. If no
-** such file descriptor is located, -1 is returned.
-*/
-static UnixUnusedFd *findReusableFd(const char *zPath, int flags){
-  UnixUnusedFd *pUnused = 0;
-
-  /* Do not search for an unused file descriptor on vxworks. Not because
-  ** vxworks would not benefit from the change (it might, we're not sure),
-  ** but because no way to test it is currently available. It is better 
-  ** not to risk breaking vxworks support for the sake of such an obscure 
-  ** feature.  */
-#if !OS_VXWORKS
-  struct stat sStat;                   /* Results of stat() call */
-
-  unixEnterMutex();
-
-  /* A stat() call may fail for various reasons. If this happens, it is
-  ** almost certain that an open() call on the same path will also fail.
-  ** For this reason, if an error occurs in the stat() call here, it is
-  ** ignored and -1 is returned. The caller will try to open a new file
-  ** descriptor on the same path, fail, and return an error to SQLite.
-  **
-  ** Even if a subsequent open() call does succeed, the consequences of
-  ** not searching for a reusable file descriptor are not dire.  */
-  if( inodeList!=0 && 0==osStat(zPath, &sStat) ){
-    unixInodeInfo *pInode;
-
-    pInode = inodeList;
-    while( pInode && (pInode->fileId.dev!=sStat.st_dev
-                     || pInode->fileId.ino!=(u64)sStat.st_ino) ){
-       pInode = pInode->pNext;
-    }
-    if( pInode ){
-      UnixUnusedFd **pp;
-      assert( tdsqlite3_mutex_notheld(pInode->pLockMutex) );
-      tdsqlite3_mutex_enter(pInode->pLockMutex);
-      flags &= (SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE);
-      for(pp=&pInode->pUnused; *pp && (*pp)->flags!=flags; pp=&((*pp)->pNext));
-      pUnused = *pp;
-      if( pUnused ){
-        *pp = pUnused->pNext;
-      }
-      tdsqlite3_mutex_leave(pInode->pLockMutex);
-    }
-  }
-  unixLeaveMutex();
-#endif    /* if !OS_VXWORKS */
-  return pUnused;
-}
-
-/*
-** Find the mode, uid and gid of file zFile. 
-*/
-static int getFileMode(
-  const char *zFile,              /* File name */
-  mode_t *pMode,                  /* OUT: Permissions of zFile */
-  uid_t *pUid,                    /* OUT: uid of zFile. */
-  gid_t *pGid                     /* OUT: gid of zFile. */
-){
-  struct stat sStat;              /* Output of stat() on database file */
-  int rc = SQLITE_OK;
-  if( 0==osStat(zFile, &sStat) ){
-    *pMode = sStat.st_mode & 0777;
-    *pUid = sStat.st_uid;
-    *pGid = sStat.st_gid;
-  }else{
-    rc = SQLITE_IOERR_FSTAT;
-  }
-  return rc;
-}
-
-/*
-** This function is called by unixOpen() to determine the unix permissions
-** to create new files with. If no error occurs, then SQLITE_OK is returned
-** and a value suitable for passing as the third argument to open(2) is
-** written to *pMode. If an IO error occurs, an SQLite error code is 
-** returned and the value of *pMode is not modified.
-**
-** In most cases, this routine sets *pMode to 0, which will become
-** an indication to robust_open() to create the file using
-** SQLITE_DEFAULT_FILE_PERMISSIONS adjusted by the umask.
-** But if the file being opened is a WAL or regular journal file, then 
-** this function queries the file-system for the permissions on the 
-** corresponding database file and sets *pMode to this value. Whenever 
-** possible, WAL and journal files are created using the same permissions 
-** as the associated database file.
-**
-** If the SQLITE_ENABLE_8_3_NAMES option is enabled, then the
-** original filename is unavailable.  But 8_3_NAMES is only used for
-** FAT filesystems and permissions do not matter there, so just use
-** the default permissions.  In 8_3_NAMES mode, leave *pMode set to zero.
-*/
-static int findCreateFileMode(
-  const char *zPath,              /* Path of file (possibly) being created */
-  int flags,                      /* Flags passed as 4th argument to xOpen() */
-  mode_t *pMode,                  /* OUT: Permissions to open file with */
-  uid_t *pUid,                    /* OUT: uid to set on the file */
-  gid_t *pGid                     /* OUT: gid to set on the file */
-){
-  int rc = SQLITE_OK;             /* Return Code */
-  *pMode = 0;
-  *pUid = 0;
-  *pGid = 0;
-  if( flags & (SQLITE_OPEN_WAL|SQLITE_OPEN_MAIN_JOURNAL) ){
-    char zDb[MAX_PATHNAME+1];     /* Database file path */
-    int nDb;                      /* Number of valid bytes in zDb */
-
-    /* zPath is a path to a WAL or journal file. The following block derives
-    ** the path to the associated database file from zPath. This block handles
-    ** the following naming conventions:
-    **
-    **   "<path to db>-journal"
-    **   "<path to db>-wal"
-    **   "<path to db>-journalNN"
-    **   "<path to db>-walNN"
-    **
-    ** where NN is a decimal number. The NN naming schemes are 
-    ** used by the test_multiplex.c module.
-    */
-    nDb = tdsqlite3Strlen30(zPath) - 1; 
-    while( zPath[nDb]!='-' ){
-      /* In normal operation, the journal file name will always contain
-      ** a '-' character.  However in 8+3 filename mode, or if a corrupt
-      ** rollback journal specifies a master journal with a goofy name, then
-      ** the '-' might be missing. */
-      if( nDb==0 || zPath[nDb]=='.' ) return SQLITE_OK;
-      nDb--;
-    }
-    memcpy(zDb, zPath, nDb);
-    zDb[nDb] = '\0';
-
-    rc = getFileMode(zDb, pMode, pUid, pGid);
-  }else if( flags & SQLITE_OPEN_DELETEONCLOSE ){
-    *pMode = 0600;
-  }else if( flags & SQLITE_OPEN_URI ){
-    /* If this is a main database file and the file was opened using a URI
-    ** filename, check for the "modeof" parameter. If present, interpret
-    ** its value as a filename and try to copy the mode, uid and gid from
-    ** that file.  */
-    const char *z = tdsqlite3_uri_parameter(zPath, "modeof");
-    if( z ){
-      rc = getFileMode(z, pMode, pUid, pGid);
-    }
-  }
-  return rc;
-}
-
-/*
-** Open the file zPath.
-** 
-** Previously, the SQLite OS layer used three functions in place of this
-** one:
-**
-**     tdsqlite3OsOpenReadWrite();
-**     tdsqlite3OsOpenReadOnly();
-**     tdsqlite3OsOpenExclusive();
-**
-** These calls correspond to the following combinations of flags:
-**
-**     ReadWrite() ->     (READWRITE | CREATE)
-**     ReadOnly()  ->     (READONLY) 
-**     OpenExclusive() -> (READWRITE | CREATE | EXCLUSIVE)
-**
-** The old OpenExclusive() accepted a boolean argument - "delFlag". If
-** true, the file was configured to be automatically deleted when the
-** file handle closed. To achieve the same effect using this new 
-** interface, add the DELETEONCLOSE flag to those specified above for 
-** OpenExclusive().
-*/
-static int unixOpen(
-  tdsqlite3_vfs *pVfs,           /* The VFS for which this is the xOpen method */
-  const char *zPath,           /* Pathname of file to be opened */
-  tdsqlite3_file *pFile,         /* The file descriptor to be filled in */
-  int flags,                   /* Input flags to control the opening */
-  int *pOutFlags               /* Output flags returned to SQLite core */
-){
-  unixFile *p = (unixFile *)pFile;
-  int fd = -1;                   /* File descriptor returned by open() */
-  int openFlags = 0;             /* Flags to pass to open() */
-  int eType = flags&0x0FFF00;  /* Type of file to open */
-  int noLock;                    /* True to omit locking primitives */
-  int rc = SQLITE_OK;            /* Function Return Code */
-  int ctrlFlags = 0;             /* UNIXFILE_* flags */
-
-  int isExclusive  = (flags & SQLITE_OPEN_EXCLUSIVE);
-  int isDelete     = (flags & SQLITE_OPEN_DELETEONCLOSE);
-  int isCreate     = (flags & SQLITE_OPEN_CREATE);
-  int isReadonly   = (flags & SQLITE_OPEN_READONLY);
-  int isReadWrite  = (flags & SQLITE_OPEN_READWRITE);
-#if SQLITE_ENABLE_LOCKING_STYLE
-  int isAutoProxy  = (flags & SQLITE_OPEN_AUTOPROXY);
-#endif
-#if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE
-  struct statfs fsInfo;
-#endif
-
-  /* If creating a master or main-file journal, this function will open
-  ** a file-descriptor on the directory too. The first time unixSync()
-  ** is called the directory file descriptor will be fsync()ed and close()d.
-  */
-  int isNewJrnl = (isCreate && (
-        eType==SQLITE_OPEN_MASTER_JOURNAL 
-     || eType==SQLITE_OPEN_MAIN_JOURNAL 
-     || eType==SQLITE_OPEN_WAL
-  ));
-
-  /* If argument zPath is a NULL pointer, this function is required to open
-  ** a temporary file. Use this buffer to store the file name in.
-  */
-  char zTmpname[MAX_PATHNAME+2];
-  const char *zName = zPath;
-
-  /* Check the following statements are true: 
-  **
-  **   (a) Exactly one of the READWRITE and READONLY flags must be set, and 
-  **   (b) if CREATE is set, then READWRITE must also be set, and
-  **   (c) if EXCLUSIVE is set, then CREATE must also be set.
-  **   (d) if DELETEONCLOSE is set, then CREATE must also be set.
-  */
-  assert((isReadonly==0 || isReadWrite==0) && (isReadWrite || isReadonly));
-  assert(isCreate==0 || isReadWrite);
-  assert(isExclusive==0 || isCreate);
-  assert(isDelete==0 || isCreate);
-
-  /* The main DB, main journal, WAL file and master journal are never 
-  ** automatically deleted. Nor are they ever temporary files.  */
-  assert( (!isDelete && zName) || eType!=SQLITE_OPEN_MAIN_DB );
-  assert( (!isDelete && zName) || eType!=SQLITE_OPEN_MAIN_JOURNAL );
-  assert( (!isDelete && zName) || eType!=SQLITE_OPEN_MASTER_JOURNAL );
-  assert( (!isDelete && zName) || eType!=SQLITE_OPEN_WAL );
-
-  /* Assert that the upper layer has set one of the "file-type" flags. */
-  assert( eType==SQLITE_OPEN_MAIN_DB      || eType==SQLITE_OPEN_TEMP_DB 
-       || eType==SQLITE_OPEN_MAIN_JOURNAL || eType==SQLITE_OPEN_TEMP_JOURNAL 
-       || eType==SQLITE_OPEN_SUBJOURNAL   || eType==SQLITE_OPEN_MASTER_JOURNAL 
-       || eType==SQLITE_OPEN_TRANSIENT_DB || eType==SQLITE_OPEN_WAL
-  );
-
-  /* Detect a pid change and reset the PRNG.  There is a race condition
-  ** here such that two or more threads all trying to open databases at
-  ** the same instant might all reset the PRNG.  But multiple resets
-  ** are harmless.
-  */
-  if( randomnessPid!=osGetpid(0) ){
-    randomnessPid = osGetpid(0);
-    tdsqlite3_randomness(0,0);
-  }
-  memset(p, 0, sizeof(unixFile));
-
-  if( eType==SQLITE_OPEN_MAIN_DB ){
-    UnixUnusedFd *pUnused;
-    pUnused = findReusableFd(zName, flags);
-    if( pUnused ){
-      fd = pUnused->fd;
-    }else{
-      pUnused = tdsqlite3_malloc64(sizeof(*pUnused));
-      if( !pUnused ){
-        return SQLITE_NOMEM_BKPT;
-      }
-    }
-    p->pPreallocatedUnused = pUnused;
-
-    /* Database filenames are double-zero terminated if they are not
-    ** URIs with parameters.  Hence, they can always be passed into
-    ** tdsqlite3_uri_parameter(). */
-    assert( (flags & SQLITE_OPEN_URI) || zName[strlen(zName)+1]==0 );
-
-  }else if( !zName ){
-    /* If zName is NULL, the upper layer is requesting a temp file. */
-    assert(isDelete && !isNewJrnl);
-    rc = unixGetTempname(pVfs->mxPathname, zTmpname);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    zName = zTmpname;
-
-    /* Generated temporary filenames are always double-zero terminated
-    ** for use by tdsqlite3_uri_parameter(). */
-    assert( zName[strlen(zName)+1]==0 );
-  }
-
-  /* Determine the value of the flags parameter passed to POSIX function
-  ** open(). These must be calculated even if open() is not called, as
-  ** they may be stored as part of the file handle and used by the 
-  ** 'conch file' locking functions later on.  */
-  if( isReadonly )  openFlags |= O_RDONLY;
-  if( isReadWrite ) openFlags |= O_RDWR;
-  if( isCreate )    openFlags |= O_CREAT;
-  if( isExclusive ) openFlags |= (O_EXCL|O_NOFOLLOW);
-  openFlags |= (O_LARGEFILE|O_BINARY|O_NOFOLLOW);
-
-  if( fd<0 ){
-    mode_t openMode;              /* Permissions to create file with */
-    uid_t uid;                    /* Userid for the file */
-    gid_t gid;                    /* Groupid for the file */
-    rc = findCreateFileMode(zName, flags, &openMode, &uid, &gid);
-    if( rc!=SQLITE_OK ){
-      assert( !p->pPreallocatedUnused );
-      assert( eType==SQLITE_OPEN_WAL || eType==SQLITE_OPEN_MAIN_JOURNAL );
-      return rc;
-    }
-    fd = robust_open(zName, openFlags, openMode);
-    OSTRACE(("OPENX   %-3d %s 0%o\n", fd, zName, openFlags));
-    assert( !isExclusive || (openFlags & O_CREAT)!=0 );
-    if( fd<0 ){
-      if( isNewJrnl && errno==EACCES && osAccess(zName, F_OK) ){
-        /* If unable to create a journal because the directory is not
-        ** writable, change the error code to indicate that. */
-        rc = SQLITE_READONLY_DIRECTORY;
-      }else if( errno!=EISDIR && isReadWrite ){
-        /* Failed to open the file for read/write access. Try read-only. */
-        flags &= ~(SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE);
-        openFlags &= ~(O_RDWR|O_CREAT);
-        flags |= SQLITE_OPEN_READONLY;
-        openFlags |= O_RDONLY;
-        isReadonly = 1;
-        fd = robust_open(zName, openFlags, openMode);
-      }
-    }
-    if( fd<0 ){
-      int rc2 = unixLogError(SQLITE_CANTOPEN_BKPT, "open", zName);
-      if( rc==SQLITE_OK ) rc = rc2;
-      goto open_finished;
-    }
-
-    /* The owner of the rollback journal or WAL file should always be the
-    ** same as the owner of the database file.  Try to ensure that this is
-    ** the case.  The chown() system call will be a no-op if the current
-    ** process lacks root privileges, be we should at least try.  Without
-    ** this step, if a root process opens a database file, it can leave
-    ** behinds a journal/WAL that is owned by root and hence make the
-    ** database inaccessible to unprivileged processes.
-    **
-    ** If openMode==0, then that means uid and gid are not set correctly
-    ** (probably because SQLite is configured to use 8+3 filename mode) and
-    ** in that case we do not want to attempt the chown().
-    */
-    if( openMode && (flags & (SQLITE_OPEN_WAL|SQLITE_OPEN_MAIN_JOURNAL))!=0 ){
-      robustFchown(fd, uid, gid);
-    }
-  }
-  assert( fd>=0 );
-  if( pOutFlags ){
-    *pOutFlags = flags;
-  }
-
-  if( p->pPreallocatedUnused ){
-    p->pPreallocatedUnused->fd = fd;
-    p->pPreallocatedUnused->flags = 
-                          flags & (SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE);
-  }
-
-  if( isDelete ){
-#if OS_VXWORKS
-    zPath = zName;
-#elif defined(SQLITE_UNLINK_AFTER_CLOSE)
-    zPath = tdsqlite3_mprintf("%s", zName);
-    if( zPath==0 ){
-      robust_close(p, fd, __LINE__);
-      return SQLITE_NOMEM_BKPT;
-    }
-#else
-    osUnlink(zName);
-#endif
-  }
-#if SQLITE_ENABLE_LOCKING_STYLE
-  else{
-    p->openFlags = openFlags;
-  }
-#endif
-  
-#if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE
-  if( fstatfs(fd, &fsInfo) == -1 ){
-    storeLastErrno(p, errno);
-    robust_close(p, fd, __LINE__);
-    return SQLITE_IOERR_ACCESS;
-  }
-  if (0 == strncmp("msdos", fsInfo.f_fstypename, 5)) {
-    ((unixFile*)pFile)->fsFlags |= SQLITE_FSFLAGS_IS_MSDOS;
-  }
-  if (0 == strncmp("exfat", fsInfo.f_fstypename, 5)) {
-    ((unixFile*)pFile)->fsFlags |= SQLITE_FSFLAGS_IS_MSDOS;
-  }
-#endif
-
-  /* Set up appropriate ctrlFlags */
-  if( isDelete )                ctrlFlags |= UNIXFILE_DELETE;
-  if( isReadonly )              ctrlFlags |= UNIXFILE_RDONLY;
-  noLock = eType!=SQLITE_OPEN_MAIN_DB;
-  if( noLock )                  ctrlFlags |= UNIXFILE_NOLOCK;
-  if( isNewJrnl )               ctrlFlags |= UNIXFILE_DIRSYNC;
-  if( flags & SQLITE_OPEN_URI ) ctrlFlags |= UNIXFILE_URI;
-
-#if SQLITE_ENABLE_LOCKING_STYLE
-#if SQLITE_PREFER_PROXY_LOCKING
-  isAutoProxy = 1;
-#endif
-  if( isAutoProxy && (zPath!=NULL) && (!noLock) && pVfs->xOpen ){
-    char *envforce = getenv("SQLITE_FORCE_PROXY_LOCKING");
-    int useProxy = 0;
-
-    /* SQLITE_FORCE_PROXY_LOCKING==1 means force always use proxy, 0 means 
-    ** never use proxy, NULL means use proxy for non-local files only.  */
-    if( envforce!=NULL ){
-      useProxy = atoi(envforce)>0;
-    }else{
-      useProxy = !(fsInfo.f_flags&MNT_LOCAL);
-    }
-    if( useProxy ){
-      rc = fillInUnixFile(pVfs, fd, pFile, zPath, ctrlFlags);
-      if( rc==SQLITE_OK ){
-        rc = proxyTransformUnixFile((unixFile*)pFile, ":auto:");
-        if( rc!=SQLITE_OK ){
-          /* Use unixClose to clean up the resources added in fillInUnixFile 
-          ** and clear all the structure's references.  Specifically, 
-          ** pFile->pMethods will be NULL so tdsqlite3OsClose will be a no-op 
-          */
-          unixClose(pFile);
-          return rc;
-        }
-      }
-      goto open_finished;
-    }
-  }
-#endif
-  
-  assert( zPath==0 || zPath[0]=='/' 
-      || eType==SQLITE_OPEN_MASTER_JOURNAL || eType==SQLITE_OPEN_MAIN_JOURNAL 
-  );
-  rc = fillInUnixFile(pVfs, fd, pFile, zPath, ctrlFlags);
-
-open_finished:
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_free(p->pPreallocatedUnused);
-  }
-  return rc;
-}
-
-
-/*
-** Delete the file at zPath. If the dirSync argument is true, fsync()
-** the directory after deleting the file.
-*/
-static int unixDelete(
-  tdsqlite3_vfs *NotUsed,     /* VFS containing this as the xDelete method */
-  const char *zPath,        /* Name of file to be deleted */
-  int dirSync               /* If true, fsync() directory after deleting file */
-){
-  int rc = SQLITE_OK;
-  UNUSED_PARAMETER(NotUsed);
-  SimulateIOError(return SQLITE_IOERR_DELETE);
-  if( osUnlink(zPath)==(-1) ){
-    if( errno==ENOENT
-#if OS_VXWORKS
-        || osAccess(zPath,0)!=0
-#endif
-    ){
-      rc = SQLITE_IOERR_DELETE_NOENT;
-    }else{
-      rc = unixLogError(SQLITE_IOERR_DELETE, "unlink", zPath);
-    }
-    return rc;
-  }
-#ifndef SQLITE_DISABLE_DIRSYNC
-  if( (dirSync & 1)!=0 ){
-    int fd;
-    rc = osOpenDirectory(zPath, &fd);
-    if( rc==SQLITE_OK ){
-      if( full_fsync(fd,0,0) ){
-        rc = unixLogError(SQLITE_IOERR_DIR_FSYNC, "fsync", zPath);
-      }
-      robust_close(0, fd, __LINE__);
-    }else{
-      assert( rc==SQLITE_CANTOPEN );
-      rc = SQLITE_OK;
-    }
-  }
-#endif
-  return rc;
-}
-
-/*
-** Test the existence of or access permissions of file zPath. The
-** test performed depends on the value of flags:
-**
-**     SQLITE_ACCESS_EXISTS: Return 1 if the file exists
-**     SQLITE_ACCESS_READWRITE: Return 1 if the file is read and writable.
-**     SQLITE_ACCESS_READONLY: Return 1 if the file is readable.
-**
-** Otherwise return 0.
-*/
-static int unixAccess(
-  tdsqlite3_vfs *NotUsed,   /* The VFS containing this xAccess method */
-  const char *zPath,      /* Path of the file to examine */
-  int flags,              /* What do we want to learn about the zPath file? */
-  int *pResOut            /* Write result boolean here */
-){
-  UNUSED_PARAMETER(NotUsed);
-  SimulateIOError( return SQLITE_IOERR_ACCESS; );
-  assert( pResOut!=0 );
-
-  /* The spec says there are three possible values for flags.  But only
-  ** two of them are actually used */
-  assert( flags==SQLITE_ACCESS_EXISTS || flags==SQLITE_ACCESS_READWRITE );
-
-  if( flags==SQLITE_ACCESS_EXISTS ){
-    struct stat buf;
-    *pResOut = 0==osStat(zPath, &buf) &&
-                (!S_ISREG(buf.st_mode) || buf.st_size>0);
-  }else{
-    *pResOut = osAccess(zPath, W_OK|R_OK)==0;
-  }
-  return SQLITE_OK;
-}
-
-/*
-**
-*/
-static int mkFullPathname(
-  const char *zPath,              /* Input path */
-  char *zOut,                     /* Output buffer */
-  int nOut                        /* Allocated size of buffer zOut */
-){
-  int nPath = tdsqlite3Strlen30(zPath);
-  int iOff = 0;
-  if( zPath[0]!='/' ){
-    if( osGetcwd(zOut, nOut-2)==0 ){
-      return unixLogError(SQLITE_CANTOPEN_BKPT, "getcwd", zPath);
-    }
-    iOff = tdsqlite3Strlen30(zOut);
-    zOut[iOff++] = '/';
-  }
-  if( (iOff+nPath+1)>nOut ){
-    /* SQLite assumes that xFullPathname() nul-terminates the output buffer
-    ** even if it returns an error.  */
-    zOut[iOff] = '\0';
-    return SQLITE_CANTOPEN_BKPT;
-  }
-  tdsqlite3_snprintf(nOut-iOff, &zOut[iOff], "%s", zPath);
-  return SQLITE_OK;
-}
-
-/*
-** Turn a relative pathname into a full pathname. The relative path
-** is stored as a nul-terminated string in the buffer pointed to by
-** zPath. 
-**
-** zOut points to a buffer of at least tdsqlite3_vfs.mxPathname bytes 
-** (in this case, MAX_PATHNAME bytes). The full-path is written to
-** this buffer before returning.
-*/
-static int unixFullPathname(
-  tdsqlite3_vfs *pVfs,            /* Pointer to vfs object */
-  const char *zPath,            /* Possibly relative input path */
-  int nOut,                     /* Size of output buffer in bytes */
-  char *zOut                    /* Output buffer */
-){
-#if !defined(HAVE_READLINK) || !defined(HAVE_LSTAT)
-  return mkFullPathname(zPath, zOut, nOut);
-#else
-  int rc = SQLITE_OK;
-  int nByte;
-  int nLink = 0;                /* Number of symbolic links followed so far */
-  const char *zIn = zPath;      /* Input path for each iteration of loop */
-  char *zDel = 0;
-
-  assert( pVfs->mxPathname==MAX_PATHNAME );
-  UNUSED_PARAMETER(pVfs);
-
-  /* It's odd to simulate an io-error here, but really this is just
-  ** using the io-error infrastructure to test that SQLite handles this
-  ** function failing. This function could fail if, for example, the
-  ** current working directory has been unlinked.
-  */
-  SimulateIOError( return SQLITE_ERROR );
-
-  do {
-
-    /* Call stat() on path zIn. Set bLink to true if the path is a symbolic
-    ** link, or false otherwise.  */
-    int bLink = 0;
-    struct stat buf;
-    if( osLstat(zIn, &buf)!=0 ){
-      if( errno!=ENOENT ){
-        rc = unixLogError(SQLITE_CANTOPEN_BKPT, "lstat", zIn);
-      }
-    }else{
-      bLink = S_ISLNK(buf.st_mode);
-    }
-
-    if( bLink ){
-      nLink++;
-      if( zDel==0 ){
-        zDel = tdsqlite3_malloc(nOut);
-        if( zDel==0 ) rc = SQLITE_NOMEM_BKPT;
-      }else if( nLink>=SQLITE_MAX_SYMLINKS ){
-        rc = SQLITE_CANTOPEN_BKPT;
-      }
-
-      if( rc==SQLITE_OK ){
-        nByte = osReadlink(zIn, zDel, nOut-1);
-        if( nByte<0 ){
-          rc = unixLogError(SQLITE_CANTOPEN_BKPT, "readlink", zIn);
-        }else{
-          if( zDel[0]!='/' ){
-            int n;
-            for(n = tdsqlite3Strlen30(zIn); n>0 && zIn[n-1]!='/'; n--);
-            if( nByte+n+1>nOut ){
-              rc = SQLITE_CANTOPEN_BKPT;
-            }else{
-              memmove(&zDel[n], zDel, nByte+1);
-              memcpy(zDel, zIn, n);
-              nByte += n;
-            }
-          }
-          zDel[nByte] = '\0';
-        }
-      }
-
-      zIn = zDel;
-    }
-
-    assert( rc!=SQLITE_OK || zIn!=zOut || zIn[0]=='/' );
-    if( rc==SQLITE_OK && zIn!=zOut ){
-      rc = mkFullPathname(zIn, zOut, nOut);
-    }
-    if( bLink==0 ) break;
-    zIn = zOut;
-  }while( rc==SQLITE_OK );
-
-  tdsqlite3_free(zDel);
-  if( rc==SQLITE_OK && nLink ) rc = SQLITE_OK_SYMLINK;
-  return rc;
-#endif   /* HAVE_READLINK && HAVE_LSTAT */
-}
-
-
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-/*
-** Interfaces for opening a shared library, finding entry points
-** within the shared library, and closing the shared library.
-*/
-#include <dlfcn.h>
-static void *unixDlOpen(tdsqlite3_vfs *NotUsed, const char *zFilename){
-  UNUSED_PARAMETER(NotUsed);
-  return dlopen(zFilename, RTLD_NOW | RTLD_GLOBAL);
-}
-
-/*
-** SQLite calls this function immediately after a call to unixDlSym() or
-** unixDlOpen() fails (returns a null pointer). If a more detailed error
-** message is available, it is written to zBufOut. If no error message
-** is available, zBufOut is left unmodified and SQLite uses a default
-** error message.
-*/
-static void unixDlError(tdsqlite3_vfs *NotUsed, int nBuf, char *zBufOut){
-  const char *zErr;
-  UNUSED_PARAMETER(NotUsed);
-  unixEnterMutex();
-  zErr = dlerror();
-  if( zErr ){
-    tdsqlite3_snprintf(nBuf, zBufOut, "%s", zErr);
-  }
-  unixLeaveMutex();
-}
-static void (*unixDlSym(tdsqlite3_vfs *NotUsed, void *p, const char*zSym))(void){
-  /* 
-  ** GCC with -pedantic-errors says that C90 does not allow a void* to be
-  ** cast into a pointer to a function.  And yet the library dlsym() routine
-  ** returns a void* which is really a pointer to a function.  So how do we
-  ** use dlsym() with -pedantic-errors?
-  **
-  ** Variable x below is defined to be a pointer to a function taking
-  ** parameters void* and const char* and returning a pointer to a function.
-  ** We initialize x by assigning it a pointer to the dlsym() function.
-  ** (That assignment requires a cast.)  Then we call the function that
-  ** x points to.  
-  **
-  ** This work-around is unlikely to work correctly on any system where
-  ** you really cannot cast a function pointer into void*.  But then, on the
-  ** other hand, dlsym() will not work on such a system either, so we have
-  ** not really lost anything.
-  */
-  void (*(*x)(void*,const char*))(void);
-  UNUSED_PARAMETER(NotUsed);
-  x = (void(*(*)(void*,const char*))(void))dlsym;
-  return (*x)(p, zSym);
-}
-static void unixDlClose(tdsqlite3_vfs *NotUsed, void *pHandle){
-  UNUSED_PARAMETER(NotUsed);
-  dlclose(pHandle);
-}
-#else /* if SQLITE_OMIT_LOAD_EXTENSION is defined: */
-  #define unixDlOpen  0
-  #define unixDlError 0
-  #define unixDlSym   0
-  #define unixDlClose 0
-#endif
-
-/*
-** Write nBuf bytes of random data to the supplied buffer zBuf.
-*/
-static int unixRandomness(tdsqlite3_vfs *NotUsed, int nBuf, char *zBuf){
-  UNUSED_PARAMETER(NotUsed);
-  assert((size_t)nBuf>=(sizeof(time_t)+sizeof(int)));
-
-  /* We have to initialize zBuf to prevent valgrind from reporting
-  ** errors.  The reports issued by valgrind are incorrect - we would
-  ** prefer that the randomness be increased by making use of the
-  ** uninitialized space in zBuf - but valgrind errors tend to worry
-  ** some users.  Rather than argue, it seems easier just to initialize
-  ** the whole array and silence valgrind, even if that means less randomness
-  ** in the random seed.
-  **
-  ** When testing, initializing zBuf[] to zero is all we do.  That means
-  ** that we always use the same random number sequence.  This makes the
-  ** tests repeatable.
-  */
-  memset(zBuf, 0, nBuf);
-  randomnessPid = osGetpid(0);  
-#if !defined(SQLITE_TEST) && !defined(SQLITE_OMIT_RANDOMNESS)
-  {
-    int fd, got;
-    fd = robust_open("/dev/urandom", O_RDONLY, 0);
-    if( fd<0 ){
-      time_t t;
-      time(&t);
-      memcpy(zBuf, &t, sizeof(t));
-      memcpy(&zBuf[sizeof(t)], &randomnessPid, sizeof(randomnessPid));
-      assert( sizeof(t)+sizeof(randomnessPid)<=(size_t)nBuf );
-      nBuf = sizeof(t) + sizeof(randomnessPid);
-    }else{
-      do{ got = osRead(fd, zBuf, nBuf); }while( got<0 && errno==EINTR );
-      robust_close(0, fd, __LINE__);
-    }
-  }
-#endif
-  return nBuf;
-}
-
-
-/*
-** Sleep for a little while.  Return the amount of time slept.
-** The argument is the number of microseconds we want to sleep.
-** The return value is the number of microseconds of sleep actually
-** requested from the underlying operating system, a number which
-** might be greater than or equal to the argument, but not less
-** than the argument.
-*/
-static int unixSleep(tdsqlite3_vfs *NotUsed, int microseconds){
-#if OS_VXWORKS
-  struct timespec sp;
-
-  sp.tv_sec = microseconds / 1000000;
-  sp.tv_nsec = (microseconds % 1000000) * 1000;
-  nanosleep(&sp, NULL);
-  UNUSED_PARAMETER(NotUsed);
-  return microseconds;
-#elif defined(HAVE_USLEEP) && HAVE_USLEEP
-  usleep(microseconds);
-  UNUSED_PARAMETER(NotUsed);
-  return microseconds;
-#else
-  int seconds = (microseconds+999999)/1000000;
-  sleep(seconds);
-  UNUSED_PARAMETER(NotUsed);
-  return seconds*1000000;
-#endif
-}
-
-/*
-** The following variable, if set to a non-zero value, is interpreted as
-** the number of seconds since 1970 and is used to set the result of
-** tdsqlite3OsCurrentTime() during testing.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_current_time = 0;  /* Fake system time in seconds since 1970. */
-#endif
-
-/*
-** Find the current time (in Universal Coordinated Time).  Write into *piNow
-** the current time and date as a Julian Day number times 86_400_000.  In
-** other words, write into *piNow the number of milliseconds since the Julian
-** epoch of noon in Greenwich on November 24, 4714 B.C according to the
-** proleptic Gregorian calendar.
-**
-** On success, return SQLITE_OK.  Return SQLITE_ERROR if the time and date 
-** cannot be found.
-*/
-static int unixCurrentTimeInt64(tdsqlite3_vfs *NotUsed, tdsqlite3_int64 *piNow){
-  static const tdsqlite3_int64 unixEpoch = 24405875*(tdsqlite3_int64)8640000;
-  int rc = SQLITE_OK;
-#if defined(NO_GETTOD)
-  time_t t;
-  time(&t);
-  *piNow = ((tdsqlite3_int64)t)*1000 + unixEpoch;
-#elif OS_VXWORKS
-  struct timespec sNow;
-  clock_gettime(CLOCK_REALTIME, &sNow);
-  *piNow = unixEpoch + 1000*(tdsqlite3_int64)sNow.tv_sec + sNow.tv_nsec/1000000;
-#else
-  struct timeval sNow;
-  (void)gettimeofday(&sNow, 0);  /* Cannot fail given valid arguments */
-  *piNow = unixEpoch + 1000*(tdsqlite3_int64)sNow.tv_sec + sNow.tv_usec/1000;
-#endif
-
-#ifdef SQLITE_TEST
-  if( tdsqlite3_current_time ){
-    *piNow = 1000*(tdsqlite3_int64)tdsqlite3_current_time + unixEpoch;
-  }
-#endif
-  UNUSED_PARAMETER(NotUsed);
-  return rc;
-}
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/*
-** Find the current time (in Universal Coordinated Time).  Write the
-** current time and date as a Julian Day number into *prNow and
-** return 0.  Return 1 if the time and date cannot be found.
-*/
-static int unixCurrentTime(tdsqlite3_vfs *NotUsed, double *prNow){
-  tdsqlite3_int64 i = 0;
-  int rc;
-  UNUSED_PARAMETER(NotUsed);
-  rc = unixCurrentTimeInt64(0, &i);
-  *prNow = i/86400000.0;
-  return rc;
-}
-#else
-# define unixCurrentTime 0
-#endif
-
-/*
-** The xGetLastError() method is designed to return a better
-** low-level error message when operating-system problems come up
-** during SQLite operation.  Only the integer return code is currently
-** used.
-*/
-static int unixGetLastError(tdsqlite3_vfs *NotUsed, int NotUsed2, char *NotUsed3){
-  UNUSED_PARAMETER(NotUsed);
-  UNUSED_PARAMETER(NotUsed2);
-  UNUSED_PARAMETER(NotUsed3);
-  return errno;
-}
-
-
-/*
-************************ End of tdsqlite3_vfs methods ***************************
-******************************************************************************/
-
-/******************************************************************************
-************************** Begin Proxy Locking ********************************
-**
-** Proxy locking is a "uber-locking-method" in this sense:  It uses the
-** other locking methods on secondary lock files.  Proxy locking is a
-** meta-layer over top of the primitive locking implemented above.  For
-** this reason, the division that implements of proxy locking is deferred
-** until late in the file (here) after all of the other I/O methods have
-** been defined - so that the primitive locking methods are available
-** as services to help with the implementation of proxy locking.
-**
-****
-**
-** The default locking schemes in SQLite use byte-range locks on the
-** database file to coordinate safe, concurrent access by multiple readers
-** and writers [http://sqlite.org/lockingv3.html].  The five file locking
-** states (UNLOCKED, PENDING, SHARED, RESERVED, EXCLUSIVE) are implemented
-** as POSIX read & write locks over fixed set of locations (via fsctl),
-** on AFP and SMB only exclusive byte-range locks are available via fsctl
-** with _IOWR('z', 23, struct ByteRangeLockPB2) to track the same 5 states.
-** To simulate a F_RDLCK on the shared range, on AFP a randomly selected
-** address in the shared range is taken for a SHARED lock, the entire
-** shared range is taken for an EXCLUSIVE lock):
-**
-**      PENDING_BYTE        0x40000000
-**      RESERVED_BYTE       0x40000001
-**      SHARED_RANGE        0x40000002 -> 0x40000200
-**
-** This works well on the local file system, but shows a nearly 100x
-** slowdown in read performance on AFP because the AFP client disables
-** the read cache when byte-range locks are present.  Enabling the read
-** cache exposes a cache coherency problem that is present on all OS X
-** supported network file systems.  NFS and AFP both observe the
-** close-to-open semantics for ensuring cache coherency
-** [http://nfs.sourceforge.net/#faq_a8], which does not effectively
-** address the requirements for concurrent database access by multiple
-** readers and writers
-** [http://www.nabble.com/SQLite-on-NFS-cache-coherency-td15655701.html].
-**
-** To address the performance and cache coherency issues, proxy file locking
-** changes the way database access is controlled by limiting access to a
-** single host at a time and moving file locks off of the database file
-** and onto a proxy file on the local file system.  
-**
-**
-** Using proxy locks
-** -----------------
-**
-** C APIs
-**
-**  tdsqlite3_file_control(db, dbname, SQLITE_FCNTL_SET_LOCKPROXYFILE,
-**                       <proxy_path> | ":auto:");
-**  tdsqlite3_file_control(db, dbname, SQLITE_FCNTL_GET_LOCKPROXYFILE,
-**                       &<proxy_path>);
-**
-**
-** SQL pragmas
-**
-**  PRAGMA [database.]lock_proxy_file=<proxy_path> | :auto:
-**  PRAGMA [database.]lock_proxy_file
-**
-** Specifying ":auto:" means that if there is a conch file with a matching
-** host ID in it, the proxy path in the conch file will be used, otherwise
-** a proxy path based on the user's temp dir
-** (via confstr(_CS_DARWIN_USER_TEMP_DIR,...)) will be used and the
-** actual proxy file name is generated from the name and path of the
-** database file.  For example:
-**
-**       For database path "/Users/me/foo.db" 
-**       The lock path will be "<tmpdir>/sqliteplocks/_Users_me_foo.db:auto:")
-**
-** Once a lock proxy is configured for a database connection, it can not
-** be removed, however it may be switched to a different proxy path via
-** the above APIs (assuming the conch file is not being held by another
-** connection or process). 
-**
-**
-** How proxy locking works
-** -----------------------
-**
-** Proxy file locking relies primarily on two new supporting files: 
-**
-**   *  conch file to limit access to the database file to a single host
-**      at a time
-**
-**   *  proxy file to act as a proxy for the advisory locks normally
-**      taken on the database
-**
-** The conch file - to use a proxy file, sqlite must first "hold the conch"
-** by taking an sqlite-style shared lock on the conch file, reading the
-** contents and comparing the host's unique host ID (see below) and lock
-** proxy path against the values stored in the conch.  The conch file is
-** stored in the same directory as the database file and the file name
-** is patterned after the database file name as ".<databasename>-conch".
-** If the conch file does not exist, or its contents do not match the
-** host ID and/or proxy path, then the lock is escalated to an exclusive
-** lock and the conch file contents is updated with the host ID and proxy
-** path and the lock is downgraded to a shared lock again.  If the conch
-** is held by another process (with a shared lock), the exclusive lock
-** will fail and SQLITE_BUSY is returned.
-**
-** The proxy file - a single-byte file used for all advisory file locks
-** normally taken on the database file.   This allows for safe sharing
-** of the database file for multiple readers and writers on the same
-** host (the conch ensures that they all use the same local lock file).
-**
-** Requesting the lock proxy does not immediately take the conch, it is
-** only taken when the first request to lock database file is made.  
-** This matches the semantics of the traditional locking behavior, where
-** opening a connection to a database file does not take a lock on it.
-** The shared lock and an open file descriptor are maintained until 
-** the connection to the database is closed. 
-**
-** The proxy file and the lock file are never deleted so they only need
-** to be created the first time they are used.
-**
-** Configuration options
-** ---------------------
-**
-**  SQLITE_PREFER_PROXY_LOCKING
-**
-**       Database files accessed on non-local file systems are
-**       automatically configured for proxy locking, lock files are
-**       named automatically using the same logic as
-**       PRAGMA lock_proxy_file=":auto:"
-**    
-**  SQLITE_PROXY_DEBUG
-**
-**       Enables the logging of error messages during host id file
-**       retrieval and creation
-**
-**  LOCKPROXYDIR
-**
-**       Overrides the default directory used for lock proxy files that
-**       are named automatically via the ":auto:" setting
-**
-**  SQLITE_DEFAULT_PROXYDIR_PERMISSIONS
-**
-**       Permissions to use when creating a directory for storing the
-**       lock proxy files, only used when LOCKPROXYDIR is not set.
-**    
-**    
-** As mentioned above, when compiled with SQLITE_PREFER_PROXY_LOCKING,
-** setting the environment variable SQLITE_FORCE_PROXY_LOCKING to 1 will
-** force proxy locking to be used for every database file opened, and 0
-** will force automatic proxy locking to be disabled for all database
-** files (explicitly calling the SQLITE_FCNTL_SET_LOCKPROXYFILE pragma or
-** sqlite_file_control API is not affected by SQLITE_FORCE_PROXY_LOCKING).
-*/
-
-/*
-** Proxy locking is only available on MacOSX 
-*/
-#if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
-
-/*
-** The proxyLockingContext has the path and file structures for the remote 
-** and local proxy files in it
-*/
-typedef struct proxyLockingContext proxyLockingContext;
-struct proxyLockingContext {
-  unixFile *conchFile;         /* Open conch file */
-  char *conchFilePath;         /* Name of the conch file */
-  unixFile *lockProxy;         /* Open proxy lock file */
-  char *lockProxyPath;         /* Name of the proxy lock file */
-  char *dbPath;                /* Name of the open file */
-  int conchHeld;               /* 1 if the conch is held, -1 if lockless */
-  int nFails;                  /* Number of conch taking failures */
-  void *oldLockingContext;     /* Original lockingcontext to restore on close */
-  tdsqlite3_io_methods const *pOldMethod;     /* Original I/O methods for close */
-};
-
-/* 
-** The proxy lock file path for the database at dbPath is written into lPath, 
-** which must point to valid, writable memory large enough for a maxLen length
-** file path. 
-*/
-static int proxyGetLockPath(const char *dbPath, char *lPath, size_t maxLen){
-  int len;
-  int dbLen;
-  int i;
-
-#ifdef LOCKPROXYDIR
-  len = strlcpy(lPath, LOCKPROXYDIR, maxLen);
-#else
-# ifdef _CS_DARWIN_USER_TEMP_DIR
-  {
-    if( !confstr(_CS_DARWIN_USER_TEMP_DIR, lPath, maxLen) ){
-      OSTRACE(("GETLOCKPATH  failed %s errno=%d pid=%d\n",
-               lPath, errno, osGetpid(0)));
-      return SQLITE_IOERR_LOCK;
-    }
-    len = strlcat(lPath, "sqliteplocks", maxLen);    
-  }
-# else
-  len = strlcpy(lPath, "/tmp/", maxLen);
-# endif
-#endif
-
-  if( lPath[len-1]!='/' ){
-    len = strlcat(lPath, "/", maxLen);
-  }
-  
-  /* transform the db path to a unique cache name */
-  dbLen = (int)strlen(dbPath);
-  for( i=0; i<dbLen && (i+len+7)<(int)maxLen; i++){
-    char c = dbPath[i];
-    lPath[i+len] = (c=='/')?'_':c;
-  }
-  lPath[i+len]='\0';
-  strlcat(lPath, ":auto:", maxLen);
-  OSTRACE(("GETLOCKPATH  proxy lock path=%s pid=%d\n", lPath, osGetpid(0)));
-  return SQLITE_OK;
-}
-
-/* 
- ** Creates the lock file and any missing directories in lockPath
- */
-static int proxyCreateLockPath(const char *lockPath){
-  int i, len;
-  char buf[MAXPATHLEN];
-  int start = 0;
-  
-  assert(lockPath!=NULL);
-  /* try to create all the intermediate directories */
-  len = (int)strlen(lockPath);
-  buf[0] = lockPath[0];
-  for( i=1; i<len; i++ ){
-    if( lockPath[i] == '/' && (i - start > 0) ){
-      /* only mkdir if leaf dir != "." or "/" or ".." */
-      if( i-start>2 || (i-start==1 && buf[start] != '.' && buf[start] != '/') 
-         || (i-start==2 && buf[start] != '.' && buf[start+1] != '.') ){
-        buf[i]='\0';
-        if( osMkdir(buf, SQLITE_DEFAULT_PROXYDIR_PERMISSIONS) ){
-          int err=errno;
-          if( err!=EEXIST ) {
-            OSTRACE(("CREATELOCKPATH  FAILED creating %s, "
-                     "'%s' proxy lock path=%s pid=%d\n",
-                     buf, strerror(err), lockPath, osGetpid(0)));
-            return err;
-          }
-        }
-      }
-      start=i+1;
-    }
-    buf[i] = lockPath[i];
-  }
-  OSTRACE(("CREATELOCKPATH  proxy lock path=%s pid=%d\n",lockPath,osGetpid(0)));
-  return 0;
-}
-
-/*
-** Create a new VFS file descriptor (stored in memory obtained from
-** tdsqlite3_malloc) and open the file named "path" in the file descriptor.
-**
-** The caller is responsible not only for closing the file descriptor
-** but also for freeing the memory associated with the file descriptor.
-*/
-static int proxyCreateUnixFile(
-    const char *path,        /* path for the new unixFile */
-    unixFile **ppFile,       /* unixFile created and returned by ref */
-    int islockfile           /* if non zero missing dirs will be created */
-) {
-  int fd = -1;
-  unixFile *pNew;
-  int rc = SQLITE_OK;
-  int openFlags = O_RDWR | O_CREAT | O_NOFOLLOW;
-  tdsqlite3_vfs dummyVfs;
-  int terrno = 0;
-  UnixUnusedFd *pUnused = NULL;
-
-  /* 1. first try to open/create the file
-  ** 2. if that fails, and this is a lock file (not-conch), try creating
-  ** the parent directories and then try again.
-  ** 3. if that fails, try to open the file read-only
-  ** otherwise return BUSY (if lock file) or CANTOPEN for the conch file
-  */
-  pUnused = findReusableFd(path, openFlags);
-  if( pUnused ){
-    fd = pUnused->fd;
-  }else{
-    pUnused = tdsqlite3_malloc64(sizeof(*pUnused));
-    if( !pUnused ){
-      return SQLITE_NOMEM_BKPT;
-    }
-  }
-  if( fd<0 ){
-    fd = robust_open(path, openFlags, 0);
-    terrno = errno;
-    if( fd<0 && errno==ENOENT && islockfile ){
-      if( proxyCreateLockPath(path) == SQLITE_OK ){
-        fd = robust_open(path, openFlags, 0);
-      }
-    }
-  }
-  if( fd<0 ){
-    openFlags = O_RDONLY | O_NOFOLLOW;
-    fd = robust_open(path, openFlags, 0);
-    terrno = errno;
-  }
-  if( fd<0 ){
-    if( islockfile ){
-      return SQLITE_BUSY;
-    }
-    switch (terrno) {
-      case EACCES:
-        return SQLITE_PERM;
-      case EIO: 
-        return SQLITE_IOERR_LOCK; /* even though it is the conch */
-      default:
-        return SQLITE_CANTOPEN_BKPT;
-    }
-  }
-  
-  pNew = (unixFile *)tdsqlite3_malloc64(sizeof(*pNew));
-  if( pNew==NULL ){
-    rc = SQLITE_NOMEM_BKPT;
-    goto end_create_proxy;
-  }
-  memset(pNew, 0, sizeof(unixFile));
-  pNew->openFlags = openFlags;
-  memset(&dummyVfs, 0, sizeof(dummyVfs));
-  dummyVfs.pAppData = (void*)&autolockIoFinder;
-  dummyVfs.zName = "dummy";
-  pUnused->fd = fd;
-  pUnused->flags = openFlags;
-  pNew->pPreallocatedUnused = pUnused;
-  
-  rc = fillInUnixFile(&dummyVfs, fd, (tdsqlite3_file*)pNew, path, 0);
-  if( rc==SQLITE_OK ){
-    *ppFile = pNew;
-    return SQLITE_OK;
-  }
-end_create_proxy:    
-  robust_close(pNew, fd, __LINE__);
-  tdsqlite3_free(pNew);
-  tdsqlite3_free(pUnused);
-  return rc;
-}
-
-#ifdef SQLITE_TEST
-/* simulate multiple hosts by creating unique hostid file paths */
-SQLITE_API int tdsqlite3_hostid_num = 0;
-#endif
-
-#define PROXY_HOSTIDLEN    16  /* conch file host id length */
-
-#if HAVE_GETHOSTUUID
-/* Not always defined in the headers as it ought to be */
-extern int gethostuuid(uuid_t id, const struct timespec *wait);
-#endif
-
-/* get the host ID via gethostuuid(), pHostID must point to PROXY_HOSTIDLEN 
-** bytes of writable memory.
-*/
-static int proxyGetHostID(unsigned char *pHostID, int *pError){
-  assert(PROXY_HOSTIDLEN == sizeof(uuid_t));
-  memset(pHostID, 0, PROXY_HOSTIDLEN);
-#if HAVE_GETHOSTUUID
-  {
-    struct timespec timeout = {1, 0}; /* 1 sec timeout */
-    if( gethostuuid(pHostID, &timeout) ){
-      int err = errno;
-      if( pError ){
-        *pError = err;
-      }
-      return SQLITE_IOERR;
-    }
-  }
-#else
-  UNUSED_PARAMETER(pError);
-#endif
-#ifdef SQLITE_TEST
-  /* simulate multiple hosts by creating unique hostid file paths */
-  if( tdsqlite3_hostid_num != 0){
-    pHostID[0] = (char)(pHostID[0] + (char)(tdsqlite3_hostid_num & 0xFF));
-  }
-#endif
-  
-  return SQLITE_OK;
-}
-
-/* The conch file contains the header, host id and lock file path
- */
-#define PROXY_CONCHVERSION 2   /* 1-byte header, 16-byte host id, path */
-#define PROXY_HEADERLEN    1   /* conch file header length */
-#define PROXY_PATHINDEX    (PROXY_HEADERLEN+PROXY_HOSTIDLEN)
-#define PROXY_MAXCONCHLEN  (PROXY_HEADERLEN+PROXY_HOSTIDLEN+MAXPATHLEN)
-
-/* 
-** Takes an open conch file, copies the contents to a new path and then moves 
-** it back.  The newly created file's file descriptor is assigned to the
-** conch file structure and finally the original conch file descriptor is 
-** closed.  Returns zero if successful.
-*/
-static int proxyBreakConchLock(unixFile *pFile, uuid_t myHostID){
-  proxyLockingContext *pCtx = (proxyLockingContext *)pFile->lockingContext; 
-  unixFile *conchFile = pCtx->conchFile;
-  char tPath[MAXPATHLEN];
-  char buf[PROXY_MAXCONCHLEN];
-  char *cPath = pCtx->conchFilePath;
-  size_t readLen = 0;
-  size_t pathLen = 0;
-  char errmsg[64] = "";
-  int fd = -1;
-  int rc = -1;
-  UNUSED_PARAMETER(myHostID);
-
-  /* create a new path by replace the trailing '-conch' with '-break' */
-  pathLen = strlcpy(tPath, cPath, MAXPATHLEN);
-  if( pathLen>MAXPATHLEN || pathLen<6 || 
-     (strlcpy(&tPath[pathLen-5], "break", 6) != 5) ){
-    tdsqlite3_snprintf(sizeof(errmsg),errmsg,"path error (len %d)",(int)pathLen);
-    goto end_breaklock;
-  }
-  /* read the conch content */
-  readLen = osPread(conchFile->h, buf, PROXY_MAXCONCHLEN, 0);
-  if( readLen<PROXY_PATHINDEX ){
-    tdsqlite3_snprintf(sizeof(errmsg),errmsg,"read error (len %d)",(int)readLen);
-    goto end_breaklock;
-  }
-  /* write it out to the temporary break file */
-  fd = robust_open(tPath, (O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW), 0);
-  if( fd<0 ){
-    tdsqlite3_snprintf(sizeof(errmsg), errmsg, "create failed (%d)", errno);
-    goto end_breaklock;
-  }
-  if( osPwrite(fd, buf, readLen, 0) != (ssize_t)readLen ){
-    tdsqlite3_snprintf(sizeof(errmsg), errmsg, "write failed (%d)", errno);
-    goto end_breaklock;
-  }
-  if( rename(tPath, cPath) ){
-    tdsqlite3_snprintf(sizeof(errmsg), errmsg, "rename failed (%d)", errno);
-    goto end_breaklock;
-  }
-  rc = 0;
-  fprintf(stderr, "broke stale lock on %s\n", cPath);
-  robust_close(pFile, conchFile->h, __LINE__);
-  conchFile->h = fd;
-  conchFile->openFlags = O_RDWR | O_CREAT;
-
-end_breaklock:
-  if( rc ){
-    if( fd>=0 ){
-      osUnlink(tPath);
-      robust_close(pFile, fd, __LINE__);
-    }
-    fprintf(stderr, "failed to break stale lock on %s, %s\n", cPath, errmsg);
-  }
-  return rc;
-}
-
-/* Take the requested lock on the conch file and break a stale lock if the 
-** host id matches.
-*/
-static int proxyConchLock(unixFile *pFile, uuid_t myHostID, int lockType){
-  proxyLockingContext *pCtx = (proxyLockingContext *)pFile->lockingContext; 
-  unixFile *conchFile = pCtx->conchFile;
-  int rc = SQLITE_OK;
-  int nTries = 0;
-  struct timespec conchModTime;
-  
-  memset(&conchModTime, 0, sizeof(conchModTime));
-  do {
-    rc = conchFile->pMethod->xLock((tdsqlite3_file*)conchFile, lockType);
-    nTries ++;
-    if( rc==SQLITE_BUSY ){
-      /* If the lock failed (busy):
-       * 1st try: get the mod time of the conch, wait 0.5s and try again. 
-       * 2nd try: fail if the mod time changed or host id is different, wait 
-       *           10 sec and try again
-       * 3rd try: break the lock unless the mod time has changed.
-       */
-      struct stat buf;
-      if( osFstat(conchFile->h, &buf) ){
-        storeLastErrno(pFile, errno);
-        return SQLITE_IOERR_LOCK;
-      }
-      
-      if( nTries==1 ){
-        conchModTime = buf.st_mtimespec;
-        usleep(500000); /* wait 0.5 sec and try the lock again*/
-        continue;  
-      }
-
-      assert( nTries>1 );
-      if( conchModTime.tv_sec != buf.st_mtimespec.tv_sec || 
-         conchModTime.tv_nsec != buf.st_mtimespec.tv_nsec ){
-        return SQLITE_BUSY;
-      }
-      
-      if( nTries==2 ){  
-        char tBuf[PROXY_MAXCONCHLEN];
-        int len = osPread(conchFile->h, tBuf, PROXY_MAXCONCHLEN, 0);
-        if( len<0 ){
-          storeLastErrno(pFile, errno);
-          return SQLITE_IOERR_LOCK;
-        }
-        if( len>PROXY_PATHINDEX && tBuf[0]==(char)PROXY_CONCHVERSION){
-          /* don't break the lock if the host id doesn't match */
-          if( 0!=memcmp(&tBuf[PROXY_HEADERLEN], myHostID, PROXY_HOSTIDLEN) ){
-            return SQLITE_BUSY;
-          }
-        }else{
-          /* don't break the lock on short read or a version mismatch */
-          return SQLITE_BUSY;
-        }
-        usleep(10000000); /* wait 10 sec and try the lock again */
-        continue; 
-      }
-      
-      assert( nTries==3 );
-      if( 0==proxyBreakConchLock(pFile, myHostID) ){
-        rc = SQLITE_OK;
-        if( lockType==EXCLUSIVE_LOCK ){
-          rc = conchFile->pMethod->xLock((tdsqlite3_file*)conchFile, SHARED_LOCK);
-        }
-        if( !rc ){
-          rc = conchFile->pMethod->xLock((tdsqlite3_file*)conchFile, lockType);
-        }
-      }
-    }
-  } while( rc==SQLITE_BUSY && nTries<3 );
-  
-  return rc;
-}
-
-/* Takes the conch by taking a shared lock and read the contents conch, if 
-** lockPath is non-NULL, the host ID and lock file path must match.  A NULL 
-** lockPath means that the lockPath in the conch file will be used if the 
-** host IDs match, or a new lock path will be generated automatically 
-** and written to the conch file.
-*/
-static int proxyTakeConch(unixFile *pFile){
-  proxyLockingContext *pCtx = (proxyLockingContext *)pFile->lockingContext; 
-  
-  if( pCtx->conchHeld!=0 ){
-    return SQLITE_OK;
-  }else{
-    unixFile *conchFile = pCtx->conchFile;
-    uuid_t myHostID;
-    int pError = 0;
-    char readBuf[PROXY_MAXCONCHLEN];
-    char lockPath[MAXPATHLEN];
-    char *tempLockPath = NULL;
-    int rc = SQLITE_OK;
-    int createConch = 0;
-    int hostIdMatch = 0;
-    int readLen = 0;
-    int tryOldLockPath = 0;
-    int forceNewLockPath = 0;
-    
-    OSTRACE(("TAKECONCH  %d for %s pid=%d\n", conchFile->h,
-             (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"),
-             osGetpid(0)));
-
-    rc = proxyGetHostID(myHostID, &pError);
-    if( (rc&0xff)==SQLITE_IOERR ){
-      storeLastErrno(pFile, pError);
-      goto end_takeconch;
-    }
-    rc = proxyConchLock(pFile, myHostID, SHARED_LOCK);
-    if( rc!=SQLITE_OK ){
-      goto end_takeconch;
-    }
-    /* read the existing conch file */
-    readLen = seekAndRead((unixFile*)conchFile, 0, readBuf, PROXY_MAXCONCHLEN);
-    if( readLen<0 ){
-      /* I/O error: lastErrno set by seekAndRead */
-      storeLastErrno(pFile, conchFile->lastErrno);
-      rc = SQLITE_IOERR_READ;
-      goto end_takeconch;
-    }else if( readLen<=(PROXY_HEADERLEN+PROXY_HOSTIDLEN) || 
-             readBuf[0]!=(char)PROXY_CONCHVERSION ){
-      /* a short read or version format mismatch means we need to create a new 
-      ** conch file. 
-      */
-      createConch = 1;
-    }
-    /* if the host id matches and the lock path already exists in the conch
-    ** we'll try to use the path there, if we can't open that path, we'll 
-    ** retry with a new auto-generated path 
-    */
-    do { /* in case we need to try again for an :auto: named lock file */
-
-      if( !createConch && !forceNewLockPath ){
-        hostIdMatch = !memcmp(&readBuf[PROXY_HEADERLEN], myHostID, 
-                                  PROXY_HOSTIDLEN);
-        /* if the conch has data compare the contents */
-        if( !pCtx->lockProxyPath ){
-          /* for auto-named local lock file, just check the host ID and we'll
-           ** use the local lock file path that's already in there
-           */
-          if( hostIdMatch ){
-            size_t pathLen = (readLen - PROXY_PATHINDEX);
-            
-            if( pathLen>=MAXPATHLEN ){
-              pathLen=MAXPATHLEN-1;
-            }
-            memcpy(lockPath, &readBuf[PROXY_PATHINDEX], pathLen);
-            lockPath[pathLen] = 0;
-            tempLockPath = lockPath;
-            tryOldLockPath = 1;
-            /* create a copy of the lock path if the conch is taken */
-            goto end_takeconch;
-          }
-        }else if( hostIdMatch
-               && !strncmp(pCtx->lockProxyPath, &readBuf[PROXY_PATHINDEX],
-                           readLen-PROXY_PATHINDEX)
-        ){
-          /* conch host and lock path match */
-          goto end_takeconch; 
-        }
-      }
-      
-      /* if the conch isn't writable and doesn't match, we can't take it */
-      if( (conchFile->openFlags&O_RDWR) == 0 ){
-        rc = SQLITE_BUSY;
-        goto end_takeconch;
-      }
-      
-      /* either the conch didn't match or we need to create a new one */
-      if( !pCtx->lockProxyPath ){
-        proxyGetLockPath(pCtx->dbPath, lockPath, MAXPATHLEN);
-        tempLockPath = lockPath;
-        /* create a copy of the lock path _only_ if the conch is taken */
-      }
-      
-      /* update conch with host and path (this will fail if other process
-      ** has a shared lock already), if the host id matches, use the big
-      ** stick.
-      */
-      futimes(conchFile->h, NULL);
-      if( hostIdMatch && !createConch ){
-        if( conchFile->pInode && conchFile->pInode->nShared>1 ){
-          /* We are trying for an exclusive lock but another thread in this
-           ** same process is still holding a shared lock. */
-          rc = SQLITE_BUSY;
-        } else {          
-          rc = proxyConchLock(pFile, myHostID, EXCLUSIVE_LOCK);
-        }
-      }else{
-        rc = proxyConchLock(pFile, myHostID, EXCLUSIVE_LOCK);
-      }
-      if( rc==SQLITE_OK ){
-        char writeBuffer[PROXY_MAXCONCHLEN];
-        int writeSize = 0;
-        
-        writeBuffer[0] = (char)PROXY_CONCHVERSION;
-        memcpy(&writeBuffer[PROXY_HEADERLEN], myHostID, PROXY_HOSTIDLEN);
-        if( pCtx->lockProxyPath!=NULL ){
-          strlcpy(&writeBuffer[PROXY_PATHINDEX], pCtx->lockProxyPath,
-                  MAXPATHLEN);
-        }else{
-          strlcpy(&writeBuffer[PROXY_PATHINDEX], tempLockPath, MAXPATHLEN);
-        }
-        writeSize = PROXY_PATHINDEX + strlen(&writeBuffer[PROXY_PATHINDEX]);
-        robust_ftruncate(conchFile->h, writeSize);
-        rc = unixWrite((tdsqlite3_file *)conchFile, writeBuffer, writeSize, 0);
-        full_fsync(conchFile->h,0,0);
-        /* If we created a new conch file (not just updated the contents of a 
-         ** valid conch file), try to match the permissions of the database 
-         */
-        if( rc==SQLITE_OK && createConch ){
-          struct stat buf;
-          int err = osFstat(pFile->h, &buf);
-          if( err==0 ){
-            mode_t cmode = buf.st_mode&(S_IRUSR|S_IWUSR | S_IRGRP|S_IWGRP |
-                                        S_IROTH|S_IWOTH);
-            /* try to match the database file R/W permissions, ignore failure */
-#ifndef SQLITE_PROXY_DEBUG
-            osFchmod(conchFile->h, cmode);
-#else
-            do{
-              rc = osFchmod(conchFile->h, cmode);
-            }while( rc==(-1) && errno==EINTR );
-            if( rc!=0 ){
-              int code = errno;
-              fprintf(stderr, "fchmod %o FAILED with %d %s\n",
-                      cmode, code, strerror(code));
-            } else {
-              fprintf(stderr, "fchmod %o SUCCEDED\n",cmode);
-            }
-          }else{
-            int code = errno;
-            fprintf(stderr, "STAT FAILED[%d] with %d %s\n", 
-                    err, code, strerror(code));
-#endif
-          }
-        }
-      }
-      conchFile->pMethod->xUnlock((tdsqlite3_file*)conchFile, SHARED_LOCK);
-      
-    end_takeconch:
-      OSTRACE(("TRANSPROXY: CLOSE  %d\n", pFile->h));
-      if( rc==SQLITE_OK && pFile->openFlags ){
-        int fd;
-        if( pFile->h>=0 ){
-          robust_close(pFile, pFile->h, __LINE__);
-        }
-        pFile->h = -1;
-        fd = robust_open(pCtx->dbPath, pFile->openFlags, 0);
-        OSTRACE(("TRANSPROXY: OPEN  %d\n", fd));
-        if( fd>=0 ){
-          pFile->h = fd;
-        }else{
-          rc=SQLITE_CANTOPEN_BKPT; /* SQLITE_BUSY? proxyTakeConch called
-           during locking */
-        }
-      }
-      if( rc==SQLITE_OK && !pCtx->lockProxy ){
-        char *path = tempLockPath ? tempLockPath : pCtx->lockProxyPath;
-        rc = proxyCreateUnixFile(path, &pCtx->lockProxy, 1);
-        if( rc!=SQLITE_OK && rc!=SQLITE_NOMEM && tryOldLockPath ){
-          /* we couldn't create the proxy lock file with the old lock file path
-           ** so try again via auto-naming 
-           */
-          forceNewLockPath = 1;
-          tryOldLockPath = 0;
-          continue; /* go back to the do {} while start point, try again */
-        }
-      }
-      if( rc==SQLITE_OK ){
-        /* Need to make a copy of path if we extracted the value
-         ** from the conch file or the path was allocated on the stack
-         */
-        if( tempLockPath ){
-          pCtx->lockProxyPath = tdsqlite3DbStrDup(0, tempLockPath);
-          if( !pCtx->lockProxyPath ){
-            rc = SQLITE_NOMEM_BKPT;
-          }
-        }
-      }
-      if( rc==SQLITE_OK ){
-        pCtx->conchHeld = 1;
-        
-        if( pCtx->lockProxy->pMethod == &afpIoMethods ){
-          afpLockingContext *afpCtx;
-          afpCtx = (afpLockingContext *)pCtx->lockProxy->lockingContext;
-          afpCtx->dbPath = pCtx->lockProxyPath;
-        }
-      } else {
-        conchFile->pMethod->xUnlock((tdsqlite3_file*)conchFile, NO_LOCK);
-      }
-      OSTRACE(("TAKECONCH  %d %s\n", conchFile->h,
-               rc==SQLITE_OK?"ok":"failed"));
-      return rc;
-    } while (1); /* in case we need to retry the :auto: lock file - 
-                 ** we should never get here except via the 'continue' call. */
-  }
-}
-
-/*
-** If pFile holds a lock on a conch file, then release that lock.
-*/
-static int proxyReleaseConch(unixFile *pFile){
-  int rc = SQLITE_OK;         /* Subroutine return code */
-  proxyLockingContext *pCtx;  /* The locking context for the proxy lock */
-  unixFile *conchFile;        /* Name of the conch file */
-
-  pCtx = (proxyLockingContext *)pFile->lockingContext;
-  conchFile = pCtx->conchFile;
-  OSTRACE(("RELEASECONCH  %d for %s pid=%d\n", conchFile->h,
-           (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"), 
-           osGetpid(0)));
-  if( pCtx->conchHeld>0 ){
-    rc = conchFile->pMethod->xUnlock((tdsqlite3_file*)conchFile, NO_LOCK);
-  }
-  pCtx->conchHeld = 0;
-  OSTRACE(("RELEASECONCH  %d %s\n", conchFile->h,
-           (rc==SQLITE_OK ? "ok" : "failed")));
-  return rc;
-}
-
-/*
-** Given the name of a database file, compute the name of its conch file.
-** Store the conch filename in memory obtained from tdsqlite3_malloc64().
-** Make *pConchPath point to the new name.  Return SQLITE_OK on success
-** or SQLITE_NOMEM if unable to obtain memory.
-**
-** The caller is responsible for ensuring that the allocated memory
-** space is eventually freed.
-**
-** *pConchPath is set to NULL if a memory allocation error occurs.
-*/
-static int proxyCreateConchPathname(char *dbPath, char **pConchPath){
-  int i;                        /* Loop counter */
-  int len = (int)strlen(dbPath); /* Length of database filename - dbPath */
-  char *conchPath;              /* buffer in which to construct conch name */
-
-  /* Allocate space for the conch filename and initialize the name to
-  ** the name of the original database file. */  
-  *pConchPath = conchPath = (char *)tdsqlite3_malloc64(len + 8);
-  if( conchPath==0 ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  memcpy(conchPath, dbPath, len+1);
-  
-  /* now insert a "." before the last / character */
-  for( i=(len-1); i>=0; i-- ){
-    if( conchPath[i]=='/' ){
-      i++;
-      break;
-    }
-  }
-  conchPath[i]='.';
-  while ( i<len ){
-    conchPath[i+1]=dbPath[i];
-    i++;
-  }
-
-  /* append the "-conch" suffix to the file */
-  memcpy(&conchPath[i+1], "-conch", 7);
-  assert( (int)strlen(conchPath) == len+7 );
-
-  return SQLITE_OK;
-}
-
-
-/* Takes a fully configured proxy locking-style unix file and switches
-** the local lock file path 
-*/
-static int switchLockProxyPath(unixFile *pFile, const char *path) {
-  proxyLockingContext *pCtx = (proxyLockingContext*)pFile->lockingContext;
-  char *oldPath = pCtx->lockProxyPath;
-  int rc = SQLITE_OK;
-
-  if( pFile->eFileLock!=NO_LOCK ){
-    return SQLITE_BUSY;
-  }  
-
-  /* nothing to do if the path is NULL, :auto: or matches the existing path */
-  if( !path || path[0]=='\0' || !strcmp(path, ":auto:") ||
-    (oldPath && !strncmp(oldPath, path, MAXPATHLEN)) ){
-    return SQLITE_OK;
-  }else{
-    unixFile *lockProxy = pCtx->lockProxy;
-    pCtx->lockProxy=NULL;
-    pCtx->conchHeld = 0;
-    if( lockProxy!=NULL ){
-      rc=lockProxy->pMethod->xClose((tdsqlite3_file *)lockProxy);
-      if( rc ) return rc;
-      tdsqlite3_free(lockProxy);
-    }
-    tdsqlite3_free(oldPath);
-    pCtx->lockProxyPath = tdsqlite3DbStrDup(0, path);
-  }
-  
-  return rc;
-}
-
-/*
-** pFile is a file that has been opened by a prior xOpen call.  dbPath
-** is a string buffer at least MAXPATHLEN+1 characters in size.
-**
-** This routine find the filename associated with pFile and writes it
-** int dbPath.
-*/
-static int proxyGetDbPathForUnixFile(unixFile *pFile, char *dbPath){
-#if defined(__APPLE__)
-  if( pFile->pMethod == &afpIoMethods ){
-    /* afp style keeps a reference to the db path in the filePath field 
-    ** of the struct */
-    assert( (int)strlen((char*)pFile->lockingContext)<=MAXPATHLEN );
-    strlcpy(dbPath, ((afpLockingContext *)pFile->lockingContext)->dbPath,
-            MAXPATHLEN);
-  } else
-#endif
-  if( pFile->pMethod == &dotlockIoMethods ){
-    /* dot lock style uses the locking context to store the dot lock
-    ** file path */
-    int len = strlen((char *)pFile->lockingContext) - strlen(DOTLOCK_SUFFIX);
-    memcpy(dbPath, (char *)pFile->lockingContext, len + 1);
-  }else{
-    /* all other styles use the locking context to store the db file path */
-    assert( strlen((char*)pFile->lockingContext)<=MAXPATHLEN );
-    strlcpy(dbPath, (char *)pFile->lockingContext, MAXPATHLEN);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Takes an already filled in unix file and alters it so all file locking 
-** will be performed on the local proxy lock file.  The following fields
-** are preserved in the locking context so that they can be restored and 
-** the unix structure properly cleaned up at close time:
-**  ->lockingContext
-**  ->pMethod
-*/
-static int proxyTransformUnixFile(unixFile *pFile, const char *path) {
-  proxyLockingContext *pCtx;
-  char dbPath[MAXPATHLEN+1];       /* Name of the database file */
-  char *lockPath=NULL;
-  int rc = SQLITE_OK;
-  
-  if( pFile->eFileLock!=NO_LOCK ){
-    return SQLITE_BUSY;
-  }
-  proxyGetDbPathForUnixFile(pFile, dbPath);
-  if( !path || path[0]=='\0' || !strcmp(path, ":auto:") ){
-    lockPath=NULL;
-  }else{
-    lockPath=(char *)path;
-  }
-  
-  OSTRACE(("TRANSPROXY  %d for %s pid=%d\n", pFile->h,
-           (lockPath ? lockPath : ":auto:"), osGetpid(0)));
-
-  pCtx = tdsqlite3_malloc64( sizeof(*pCtx) );
-  if( pCtx==0 ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  memset(pCtx, 0, sizeof(*pCtx));
-
-  rc = proxyCreateConchPathname(dbPath, &pCtx->conchFilePath);
-  if( rc==SQLITE_OK ){
-    rc = proxyCreateUnixFile(pCtx->conchFilePath, &pCtx->conchFile, 0);
-    if( rc==SQLITE_CANTOPEN && ((pFile->openFlags&O_RDWR) == 0) ){
-      /* if (a) the open flags are not O_RDWR, (b) the conch isn't there, and
-      ** (c) the file system is read-only, then enable no-locking access.
-      ** Ugh, since O_RDONLY==0x0000 we test for !O_RDWR since unixOpen asserts
-      ** that openFlags will have only one of O_RDONLY or O_RDWR.
-      */
-      struct statfs fsInfo;
-      struct stat conchInfo;
-      int goLockless = 0;
-
-      if( osStat(pCtx->conchFilePath, &conchInfo) == -1 ) {
-        int err = errno;
-        if( (err==ENOENT) && (statfs(dbPath, &fsInfo) != -1) ){
-          goLockless = (fsInfo.f_flags&MNT_RDONLY) == MNT_RDONLY;
-        }
-      }
-      if( goLockless ){
-        pCtx->conchHeld = -1; /* read only FS/ lockless */
-        rc = SQLITE_OK;
-      }
-    }
-  }  
-  if( rc==SQLITE_OK && lockPath ){
-    pCtx->lockProxyPath = tdsqlite3DbStrDup(0, lockPath);
-  }
-
-  if( rc==SQLITE_OK ){
-    pCtx->dbPath = tdsqlite3DbStrDup(0, dbPath);
-    if( pCtx->dbPath==NULL ){
-      rc = SQLITE_NOMEM_BKPT;
-    }
-  }
-  if( rc==SQLITE_OK ){
-    /* all memory is allocated, proxys are created and assigned, 
-    ** switch the locking context and pMethod then return.
-    */
-    pCtx->oldLockingContext = pFile->lockingContext;
-    pFile->lockingContext = pCtx;
-    pCtx->pOldMethod = pFile->pMethod;
-    pFile->pMethod = &proxyIoMethods;
-  }else{
-    if( pCtx->conchFile ){ 
-      pCtx->conchFile->pMethod->xClose((tdsqlite3_file *)pCtx->conchFile);
-      tdsqlite3_free(pCtx->conchFile);
-    }
-    tdsqlite3DbFree(0, pCtx->lockProxyPath);
-    tdsqlite3_free(pCtx->conchFilePath); 
-    tdsqlite3_free(pCtx);
-  }
-  OSTRACE(("TRANSPROXY  %d %s\n", pFile->h,
-           (rc==SQLITE_OK ? "ok" : "failed")));
-  return rc;
-}
-
-
-/*
-** This routine handles tdsqlite3_file_control() calls that are specific
-** to proxy locking.
-*/
-static int proxyFileControl(tdsqlite3_file *id, int op, void *pArg){
-  switch( op ){
-    case SQLITE_FCNTL_GET_LOCKPROXYFILE: {
-      unixFile *pFile = (unixFile*)id;
-      if( pFile->pMethod == &proxyIoMethods ){
-        proxyLockingContext *pCtx = (proxyLockingContext*)pFile->lockingContext;
-        proxyTakeConch(pFile);
-        if( pCtx->lockProxyPath ){
-          *(const char **)pArg = pCtx->lockProxyPath;
-        }else{
-          *(const char **)pArg = ":auto: (not held)";
-        }
-      } else {
-        *(const char **)pArg = NULL;
-      }
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_SET_LOCKPROXYFILE: {
-      unixFile *pFile = (unixFile*)id;
-      int rc = SQLITE_OK;
-      int isProxyStyle = (pFile->pMethod == &proxyIoMethods);
-      if( pArg==NULL || (const char *)pArg==0 ){
-        if( isProxyStyle ){
-          /* turn off proxy locking - not supported.  If support is added for
-          ** switching proxy locking mode off then it will need to fail if
-          ** the journal mode is WAL mode. 
-          */
-          rc = SQLITE_ERROR /*SQLITE_PROTOCOL? SQLITE_MISUSE?*/;
-        }else{
-          /* turn off proxy locking - already off - NOOP */
-          rc = SQLITE_OK;
-        }
-      }else{
-        const char *proxyPath = (const char *)pArg;
-        if( isProxyStyle ){
-          proxyLockingContext *pCtx = 
-            (proxyLockingContext*)pFile->lockingContext;
-          if( !strcmp(pArg, ":auto:") 
-           || (pCtx->lockProxyPath &&
-               !strncmp(pCtx->lockProxyPath, proxyPath, MAXPATHLEN))
-          ){
-            rc = SQLITE_OK;
-          }else{
-            rc = switchLockProxyPath(pFile, proxyPath);
-          }
-        }else{
-          /* turn on proxy file locking */
-          rc = proxyTransformUnixFile(pFile, proxyPath);
-        }
-      }
-      return rc;
-    }
-    default: {
-      assert( 0 );  /* The call assures that only valid opcodes are sent */
-    }
-  }
-  /*NOTREACHED*/ assert(0);
-  return SQLITE_ERROR;
-}
-
-/*
-** Within this division (the proxying locking implementation) the procedures
-** above this point are all utilities.  The lock-related methods of the
-** proxy-locking tdsqlite3_io_method object follow.
-*/
-
-
-/*
-** This routine checks if there is a RESERVED lock held on the specified
-** file by this or any other process. If such a lock is held, set *pResOut
-** to a non-zero value otherwise *pResOut is set to zero.  The return value
-** is set to SQLITE_OK unless an I/O error occurs during lock checking.
-*/
-static int proxyCheckReservedLock(tdsqlite3_file *id, int *pResOut) {
-  unixFile *pFile = (unixFile*)id;
-  int rc = proxyTakeConch(pFile);
-  if( rc==SQLITE_OK ){
-    proxyLockingContext *pCtx = (proxyLockingContext *)pFile->lockingContext;
-    if( pCtx->conchHeld>0 ){
-      unixFile *proxy = pCtx->lockProxy;
-      return proxy->pMethod->xCheckReservedLock((tdsqlite3_file*)proxy, pResOut);
-    }else{ /* conchHeld < 0 is lockless */
-      pResOut=0;
-    }
-  }
-  return rc;
-}
-
-/*
-** Lock the file with the lock specified by parameter eFileLock - one
-** of the following:
-**
-**     (1) SHARED_LOCK
-**     (2) RESERVED_LOCK
-**     (3) PENDING_LOCK
-**     (4) EXCLUSIVE_LOCK
-**
-** Sometimes when requesting one lock state, additional lock states
-** are inserted in between.  The locking might fail on one of the later
-** transitions leaving the lock state different from what it started but
-** still short of its goal.  The following chart shows the allowed
-** transitions and the inserted intermediate states:
-**
-**    UNLOCKED -> SHARED
-**    SHARED -> RESERVED
-**    SHARED -> (PENDING) -> EXCLUSIVE
-**    RESERVED -> (PENDING) -> EXCLUSIVE
-**    PENDING -> EXCLUSIVE
-**
-** This routine will only increase a lock.  Use the tdsqlite3OsUnlock()
-** routine to lower a locking level.
-*/
-static int proxyLock(tdsqlite3_file *id, int eFileLock) {
-  unixFile *pFile = (unixFile*)id;
-  int rc = proxyTakeConch(pFile);
-  if( rc==SQLITE_OK ){
-    proxyLockingContext *pCtx = (proxyLockingContext *)pFile->lockingContext;
-    if( pCtx->conchHeld>0 ){
-      unixFile *proxy = pCtx->lockProxy;
-      rc = proxy->pMethod->xLock((tdsqlite3_file*)proxy, eFileLock);
-      pFile->eFileLock = proxy->eFileLock;
-    }else{
-      /* conchHeld < 0 is lockless */
-    }
-  }
-  return rc;
-}
-
-
-/*
-** Lower the locking level on file descriptor pFile to eFileLock.  eFileLock
-** must be either NO_LOCK or SHARED_LOCK.
-**
-** If the locking level of the file descriptor is already at or below
-** the requested locking level, this routine is a no-op.
-*/
-static int proxyUnlock(tdsqlite3_file *id, int eFileLock) {
-  unixFile *pFile = (unixFile*)id;
-  int rc = proxyTakeConch(pFile);
-  if( rc==SQLITE_OK ){
-    proxyLockingContext *pCtx = (proxyLockingContext *)pFile->lockingContext;
-    if( pCtx->conchHeld>0 ){
-      unixFile *proxy = pCtx->lockProxy;
-      rc = proxy->pMethod->xUnlock((tdsqlite3_file*)proxy, eFileLock);
-      pFile->eFileLock = proxy->eFileLock;
-    }else{
-      /* conchHeld < 0 is lockless */
-    }
-  }
-  return rc;
-}
-
-/*
-** Close a file that uses proxy locks.
-*/
-static int proxyClose(tdsqlite3_file *id) {
-  if( ALWAYS(id) ){
-    unixFile *pFile = (unixFile*)id;
-    proxyLockingContext *pCtx = (proxyLockingContext *)pFile->lockingContext;
-    unixFile *lockProxy = pCtx->lockProxy;
-    unixFile *conchFile = pCtx->conchFile;
-    int rc = SQLITE_OK;
-    
-    if( lockProxy ){
-      rc = lockProxy->pMethod->xUnlock((tdsqlite3_file*)lockProxy, NO_LOCK);
-      if( rc ) return rc;
-      rc = lockProxy->pMethod->xClose((tdsqlite3_file*)lockProxy);
-      if( rc ) return rc;
-      tdsqlite3_free(lockProxy);
-      pCtx->lockProxy = 0;
-    }
-    if( conchFile ){
-      if( pCtx->conchHeld ){
-        rc = proxyReleaseConch(pFile);
-        if( rc ) return rc;
-      }
-      rc = conchFile->pMethod->xClose((tdsqlite3_file*)conchFile);
-      if( rc ) return rc;
-      tdsqlite3_free(conchFile);
-    }
-    tdsqlite3DbFree(0, pCtx->lockProxyPath);
-    tdsqlite3_free(pCtx->conchFilePath);
-    tdsqlite3DbFree(0, pCtx->dbPath);
-    /* restore the original locking context and pMethod then close it */
-    pFile->lockingContext = pCtx->oldLockingContext;
-    pFile->pMethod = pCtx->pOldMethod;
-    tdsqlite3_free(pCtx);
-    return pFile->pMethod->xClose(id);
-  }
-  return SQLITE_OK;
-}
-
-
-
-#endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */
-/*
-** The proxy locking style is intended for use with AFP filesystems.
-** And since AFP is only supported on MacOSX, the proxy locking is also
-** restricted to MacOSX.
-** 
-**
-******************* End of the proxy lock implementation **********************
-******************************************************************************/
-
-/*
-** Initialize the operating system interface.
-**
-** This routine registers all VFS implementations for unix-like operating
-** systems.  This routine, and the tdsqlite3_os_end() routine that follows,
-** should be the only routines in this file that are visible from other
-** files.
-**
-** This routine is called once during SQLite initialization and by a
-** single thread.  The memory allocation and mutex subsystems have not
-** necessarily been initialized when this routine is called, and so they
-** should not be used.
-*/
-SQLITE_API int tdsqlite3_os_init(void){ 
-  /* 
-  ** The following macro defines an initializer for an tdsqlite3_vfs object.
-  ** The name of the VFS is NAME.  The pAppData is a pointer to a pointer
-  ** to the "finder" function.  (pAppData is a pointer to a pointer because
-  ** silly C90 rules prohibit a void* from being cast to a function pointer
-  ** and so we have to go through the intermediate pointer to avoid problems
-  ** when compiling with -pedantic-errors on GCC.)
-  **
-  ** The FINDER parameter to this macro is the name of the pointer to the
-  ** finder-function.  The finder-function returns a pointer to the
-  ** sqlite_io_methods object that implements the desired locking
-  ** behaviors.  See the division above that contains the IOMETHODS
-  ** macro for addition information on finder-functions.
-  **
-  ** Most finders simply return a pointer to a fixed tdsqlite3_io_methods
-  ** object.  But the "autolockIoFinder" available on MacOSX does a little
-  ** more than that; it looks at the filesystem type that hosts the 
-  ** database file and tries to choose an locking method appropriate for
-  ** that filesystem time.
-  */
-  #define UNIXVFS(VFSNAME, FINDER) {                        \
-    3,                    /* iVersion */                    \
-    sizeof(unixFile),     /* szOsFile */                    \
-    MAX_PATHNAME,         /* mxPathname */                  \
-    0,                    /* pNext */                       \
-    VFSNAME,              /* zName */                       \
-    (void*)&FINDER,       /* pAppData */                    \
-    unixOpen,             /* xOpen */                       \
-    unixDelete,           /* xDelete */                     \
-    unixAccess,           /* xAccess */                     \
-    unixFullPathname,     /* xFullPathname */               \
-    unixDlOpen,           /* xDlOpen */                     \
-    unixDlError,          /* xDlError */                    \
-    unixDlSym,            /* xDlSym */                      \
-    unixDlClose,          /* xDlClose */                    \
-    unixRandomness,       /* xRandomness */                 \
-    unixSleep,            /* xSleep */                      \
-    unixCurrentTime,      /* xCurrentTime */                \
-    unixGetLastError,     /* xGetLastError */               \
-    unixCurrentTimeInt64, /* xCurrentTimeInt64 */           \
-    unixSetSystemCall,    /* xSetSystemCall */              \
-    unixGetSystemCall,    /* xGetSystemCall */              \
-    unixNextSystemCall,   /* xNextSystemCall */             \
-  }
-
-  /*
-  ** All default VFSes for unix are contained in the following array.
-  **
-  ** Note that the tdsqlite3_vfs.pNext field of the VFS object is modified
-  ** by the SQLite core when the VFS is registered.  So the following
-  ** array cannot be const.
-  */
-  static tdsqlite3_vfs aVfs[] = {
-#if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
-    UNIXVFS("unix",          autolockIoFinder ),
-#elif OS_VXWORKS
-    UNIXVFS("unix",          vxworksIoFinder ),
-#else
-    UNIXVFS("unix",          posixIoFinder ),
-#endif
-    UNIXVFS("unix-none",     nolockIoFinder ),
-    UNIXVFS("unix-dotfile",  dotlockIoFinder ),
-    UNIXVFS("unix-excl",     posixIoFinder ),
-#if OS_VXWORKS
-    UNIXVFS("unix-namedsem", semIoFinder ),
-#endif
-#if SQLITE_ENABLE_LOCKING_STYLE || OS_VXWORKS
-    UNIXVFS("unix-posix",    posixIoFinder ),
-#endif
-#if SQLITE_ENABLE_LOCKING_STYLE
-    UNIXVFS("unix-flock",    flockIoFinder ),
-#endif
-#if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
-    UNIXVFS("unix-afp",      afpIoFinder ),
-    UNIXVFS("unix-nfs",      nfsIoFinder ),
-    UNIXVFS("unix-proxy",    proxyIoFinder ),
-#endif
-  };
-  unsigned int i;          /* Loop counter */
-
-  /* Double-check that the aSyscall[] array has been constructed
-  ** correctly.  See ticket [bb3a86e890c8e96ab] */
-  assert( ArraySize(aSyscall)==29 );
-
-  /* Register all VFSes defined in the aVfs[] array */
-  for(i=0; i<(sizeof(aVfs)/sizeof(tdsqlite3_vfs)); i++){
-    tdsqlite3_vfs_register(&aVfs[i], i==0);
-  }
-  unixBigLock = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_VFS1);
-  return SQLITE_OK; 
-}
-
-/*
-** Shutdown the operating system interface.
-**
-** Some operating systems might need to do some cleanup in this routine,
-** to release dynamically allocated objects.  But not on unix.
-** This routine is a no-op for unix.
-*/
-SQLITE_API int tdsqlite3_os_end(void){ 
-  unixBigLock = 0;
-  return SQLITE_OK; 
-}
- 
-#endif /* SQLITE_OS_UNIX */
-
-/************** End of os_unix.c *********************************************/
-/************** Begin file os_win.c ******************************************/
-/*
-** 2004 May 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains code that is specific to Windows.
-*/
-/* #include "sqliteInt.h" */
-#if SQLITE_OS_WIN               /* This file is used for Windows only */
-
-/*
-** Include code that is common to all os_*.c files
-*/
-/************** Include os_common.h in the middle of os_win.c ****************/
-/************** Begin file os_common.h ***************************************/
-/*
-** 2004 May 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains macros and a little bit of code that is common to
-** all of the platform-specific files (os_*.c) and is #included into those
-** files.
-**
-** This file should be #included by the os_*.c files only.  It is not a
-** general purpose header file.
-*/
-#ifndef _OS_COMMON_H_
-#define _OS_COMMON_H_
-
-/*
-** At least two bugs have slipped in because we changed the MEMORY_DEBUG
-** macro to SQLITE_DEBUG and some older makefiles have not yet made the
-** switch.  The following code should catch this problem at compile-time.
-*/
-#ifdef MEMORY_DEBUG
-# error "The MEMORY_DEBUG macro is obsolete.  Use SQLITE_DEBUG instead."
-#endif
-
-/*
-** Macros for performance tracing.  Normally turned off.  Only works
-** on i486 hardware.
-*/
-#ifdef SQLITE_PERFORMANCE_TRACE
-
-/*
-** hwtime.h contains inline assembler code for implementing
-** high-performance timing routines.
-*/
-/************** Include hwtime.h in the middle of os_common.h ****************/
-/************** Begin file hwtime.h ******************************************/
-/*
-** 2008 May 27
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains inline asm code for retrieving "high-performance"
-** counters for x86 and x86_64 class CPUs.
-*/
-#ifndef SQLITE_HWTIME_H
-#define SQLITE_HWTIME_H
-
-/*
-** The following routine only works on pentium-class (or newer) processors.
-** It uses the RDTSC opcode to read the cycle count value out of the
-** processor and returns that value.  This can be used for high-res
-** profiling.
-*/
-#if !defined(__STRICT_ANSI__) && \
-    (defined(__GNUC__) || defined(_MSC_VER)) && \
-    (defined(i386) || defined(__i386__) || defined(_M_IX86))
-
-  #if defined(__GNUC__)
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-     unsigned int lo, hi;
-     __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
-     return (sqlite_uint64)hi << 32 | lo;
-  }
-
-  #elif defined(_MSC_VER)
-
-  __declspec(naked) __inline sqlite_uint64 __cdecl tdsqlite3Hwtime(void){
-     __asm {
-        rdtsc
-        ret       ; return value at EDX:EAX
-     }
-  }
-
-  #endif
-
-#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__x86_64__))
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-      unsigned long val;
-      __asm__ __volatile__ ("rdtsc" : "=A" (val));
-      return val;
-  }
- 
-#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__ppc__))
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-      unsigned long long retval;
-      unsigned long junk;
-      __asm__ __volatile__ ("\n\
-          1:      mftbu   %1\n\
-                  mftb    %L0\n\
-                  mftbu   %0\n\
-                  cmpw    %0,%1\n\
-                  bne     1b"
-                  : "=r" (retval), "=r" (junk));
-      return retval;
-  }
-
-#else
-
-  /*
-  ** asm() is needed for hardware timing support.  Without asm(),
-  ** disable the tdsqlite3Hwtime() routine.
-  **
-  ** tdsqlite3Hwtime() is only used for some obscure debugging
-  ** and analysis configurations, not in any deliverable, so this
-  ** should not be a great loss.
-  */
-SQLITE_PRIVATE   sqlite_uint64 tdsqlite3Hwtime(void){ return ((sqlite_uint64)0); }
-
-#endif
-
-#endif /* !defined(SQLITE_HWTIME_H) */
-
-/************** End of hwtime.h **********************************************/
-/************** Continuing where we left off in os_common.h ******************/
-
-static sqlite_uint64 g_start;
-static sqlite_uint64 g_elapsed;
-#define TIMER_START       g_start=tdsqlite3Hwtime()
-#define TIMER_END         g_elapsed=tdsqlite3Hwtime()-g_start
-#define TIMER_ELAPSED     g_elapsed
-#else
-#define TIMER_START
-#define TIMER_END
-#define TIMER_ELAPSED     ((sqlite_uint64)0)
-#endif
-
-/*
-** If we compile with the SQLITE_TEST macro set, then the following block
-** of code will give us the ability to simulate a disk I/O error.  This
-** is used for testing the I/O recovery logic.
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API extern int tdsqlite3_io_error_hit;
-SQLITE_API extern int tdsqlite3_io_error_hardhit;
-SQLITE_API extern int tdsqlite3_io_error_pending;
-SQLITE_API extern int tdsqlite3_io_error_persist;
-SQLITE_API extern int tdsqlite3_io_error_benign;
-SQLITE_API extern int tdsqlite3_diskfull_pending;
-SQLITE_API extern int tdsqlite3_diskfull;
-#define SimulateIOErrorBenign(X) tdsqlite3_io_error_benign=(X)
-#define SimulateIOError(CODE)  \
-  if( (tdsqlite3_io_error_persist && tdsqlite3_io_error_hit) \
-       || tdsqlite3_io_error_pending-- == 1 )  \
-              { local_ioerr(); CODE; }
-static void local_ioerr(){
-  IOTRACE(("IOERR\n"));
-  tdsqlite3_io_error_hit++;
-  if( !tdsqlite3_io_error_benign ) tdsqlite3_io_error_hardhit++;
-}
-#define SimulateDiskfullError(CODE) \
-   if( tdsqlite3_diskfull_pending ){ \
-     if( tdsqlite3_diskfull_pending == 1 ){ \
-       local_ioerr(); \
-       tdsqlite3_diskfull = 1; \
-       tdsqlite3_io_error_hit = 1; \
-       CODE; \
-     }else{ \
-       tdsqlite3_diskfull_pending--; \
-     } \
-   }
-#else
-#define SimulateIOErrorBenign(X)
-#define SimulateIOError(A)
-#define SimulateDiskfullError(A)
-#endif /* defined(SQLITE_TEST) */
-
-/*
-** When testing, keep a count of the number of open files.
-*/
-#if defined(SQLITE_TEST)
-SQLITE_API extern int tdsqlite3_open_file_count;
-#define OpenCounter(X)  tdsqlite3_open_file_count+=(X)
-#else
-#define OpenCounter(X)
-#endif /* defined(SQLITE_TEST) */
-
-#endif /* !defined(_OS_COMMON_H_) */
-
-/************** End of os_common.h *******************************************/
-/************** Continuing where we left off in os_win.c *********************/
-
-/*
-** Include the header file for the Windows VFS.
-*/
-/* #include "os_win.h" */
-
-/*
-** Compiling and using WAL mode requires several APIs that are only
-** available in Windows platforms based on the NT kernel.
-*/
-#if !SQLITE_OS_WINNT && !defined(SQLITE_OMIT_WAL)
-#  error "WAL mode requires support from the Windows NT kernel, compile\
- with SQLITE_OMIT_WAL."
-#endif
-
-#if !SQLITE_OS_WINNT && SQLITE_MAX_MMAP_SIZE>0
-#  error "Memory mapped files require support from the Windows NT kernel,\
- compile with SQLITE_MAX_MMAP_SIZE=0."
-#endif
-
-/*
-** Are most of the Win32 ANSI APIs available (i.e. with certain exceptions
-** based on the sub-platform)?
-*/
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && !defined(SQLITE_WIN32_NO_ANSI)
-#  define SQLITE_WIN32_HAS_ANSI
-#endif
-
-/*
-** Are most of the Win32 Unicode APIs available (i.e. with certain exceptions
-** based on the sub-platform)?
-*/
-#if (SQLITE_OS_WINCE || SQLITE_OS_WINNT || SQLITE_OS_WINRT) && \
-    !defined(SQLITE_WIN32_NO_WIDE)
-#  define SQLITE_WIN32_HAS_WIDE
-#endif
-
-/*
-** Make sure at least one set of Win32 APIs is available.
-*/
-#if !defined(SQLITE_WIN32_HAS_ANSI) && !defined(SQLITE_WIN32_HAS_WIDE)
-#  error "At least one of SQLITE_WIN32_HAS_ANSI and SQLITE_WIN32_HAS_WIDE\
- must be defined."
-#endif
-
-/*
-** Define the required Windows SDK version constants if they are not
-** already available.
-*/
-#ifndef NTDDI_WIN8
-#  define NTDDI_WIN8                        0x06020000
-#endif
-
-#ifndef NTDDI_WINBLUE
-#  define NTDDI_WINBLUE                     0x06030000
-#endif
-
-#ifndef NTDDI_WINTHRESHOLD
-#  define NTDDI_WINTHRESHOLD                0x06040000
-#endif
-
-/*
-** Check to see if the GetVersionEx[AW] functions are deprecated on the
-** target system.  GetVersionEx was first deprecated in Win8.1.
-*/
-#ifndef SQLITE_WIN32_GETVERSIONEX
-#  if defined(NTDDI_VERSION) && NTDDI_VERSION >= NTDDI_WINBLUE
-#    define SQLITE_WIN32_GETVERSIONEX   0   /* GetVersionEx() is deprecated */
-#  else
-#    define SQLITE_WIN32_GETVERSIONEX   1   /* GetVersionEx() is current */
-#  endif
-#endif
-
-/*
-** Check to see if the CreateFileMappingA function is supported on the
-** target system.  It is unavailable when using "mincore.lib" on Win10.
-** When compiling for Windows 10, always assume "mincore.lib" is in use.
-*/
-#ifndef SQLITE_WIN32_CREATEFILEMAPPINGA
-#  if defined(NTDDI_VERSION) && NTDDI_VERSION >= NTDDI_WINTHRESHOLD
-#    define SQLITE_WIN32_CREATEFILEMAPPINGA   0
-#  else
-#    define SQLITE_WIN32_CREATEFILEMAPPINGA   1
-#  endif
-#endif
-
-/*
-** This constant should already be defined (in the "WinDef.h" SDK file).
-*/
-#ifndef MAX_PATH
-#  define MAX_PATH                      (260)
-#endif
-
-/*
-** Maximum pathname length (in chars) for Win32.  This should normally be
-** MAX_PATH.
-*/
-#ifndef SQLITE_WIN32_MAX_PATH_CHARS
-#  define SQLITE_WIN32_MAX_PATH_CHARS   (MAX_PATH)
-#endif
-
-/*
-** This constant should already be defined (in the "WinNT.h" SDK file).
-*/
-#ifndef UNICODE_STRING_MAX_CHARS
-#  define UNICODE_STRING_MAX_CHARS      (32767)
-#endif
-
-/*
-** Maximum pathname length (in chars) for WinNT.  This should normally be
-** UNICODE_STRING_MAX_CHARS.
-*/
-#ifndef SQLITE_WINNT_MAX_PATH_CHARS
-#  define SQLITE_WINNT_MAX_PATH_CHARS   (UNICODE_STRING_MAX_CHARS)
-#endif
-
-/*
-** Maximum pathname length (in bytes) for Win32.  The MAX_PATH macro is in
-** characters, so we allocate 4 bytes per character assuming worst-case of
-** 4-bytes-per-character for UTF8.
-*/
-#ifndef SQLITE_WIN32_MAX_PATH_BYTES
-#  define SQLITE_WIN32_MAX_PATH_BYTES   (SQLITE_WIN32_MAX_PATH_CHARS*4)
-#endif
-
-/*
-** Maximum pathname length (in bytes) for WinNT.  This should normally be
-** UNICODE_STRING_MAX_CHARS * sizeof(WCHAR).
-*/
-#ifndef SQLITE_WINNT_MAX_PATH_BYTES
-#  define SQLITE_WINNT_MAX_PATH_BYTES   \
-                            (sizeof(WCHAR) * SQLITE_WINNT_MAX_PATH_CHARS)
-#endif
-
-/*
-** Maximum error message length (in chars) for WinRT.
-*/
-#ifndef SQLITE_WIN32_MAX_ERRMSG_CHARS
-#  define SQLITE_WIN32_MAX_ERRMSG_CHARS (1024)
-#endif
-
-/*
-** Returns non-zero if the character should be treated as a directory
-** separator.
-*/
-#ifndef winIsDirSep
-#  define winIsDirSep(a)                (((a) == '/') || ((a) == '\\'))
-#endif
-
-/*
-** This macro is used when a local variable is set to a value that is
-** [sometimes] not used by the code (e.g. via conditional compilation).
-*/
-#ifndef UNUSED_VARIABLE_VALUE
-#  define UNUSED_VARIABLE_VALUE(x)      (void)(x)
-#endif
-
-/*
-** Returns the character that should be used as the directory separator.
-*/
-#ifndef winGetDirSep
-#  define winGetDirSep()                '\\'
-#endif
-
-/*
-** Do we need to manually define the Win32 file mapping APIs for use with WAL
-** mode or memory mapped files (e.g. these APIs are available in the Windows
-** CE SDK; however, they are not present in the header file)?
-*/
-#if SQLITE_WIN32_FILEMAPPING_API && \
-        (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0)
-/*
-** Two of the file mapping APIs are different under WinRT.  Figure out which
-** set we need.
-*/
-#if SQLITE_OS_WINRT
-WINBASEAPI HANDLE WINAPI CreateFileMappingFromApp(HANDLE, \
-        LPSECURITY_ATTRIBUTES, ULONG, ULONG64, LPCWSTR);
-
-WINBASEAPI LPVOID WINAPI MapViewOfFileFromApp(HANDLE, ULONG, ULONG64, SIZE_T);
-#else
-#if defined(SQLITE_WIN32_HAS_ANSI)
-WINBASEAPI HANDLE WINAPI CreateFileMappingA(HANDLE, LPSECURITY_ATTRIBUTES, \
-        DWORD, DWORD, DWORD, LPCSTR);
-#endif /* defined(SQLITE_WIN32_HAS_ANSI) */
-
-#if defined(SQLITE_WIN32_HAS_WIDE)
-WINBASEAPI HANDLE WINAPI CreateFileMappingW(HANDLE, LPSECURITY_ATTRIBUTES, \
-        DWORD, DWORD, DWORD, LPCWSTR);
-#endif /* defined(SQLITE_WIN32_HAS_WIDE) */
-
-WINBASEAPI LPVOID WINAPI MapViewOfFile(HANDLE, DWORD, DWORD, DWORD, SIZE_T);
-#endif /* SQLITE_OS_WINRT */
-
-/*
-** These file mapping APIs are common to both Win32 and WinRT.
-*/
-
-WINBASEAPI BOOL WINAPI FlushViewOfFile(LPCVOID, SIZE_T);
-WINBASEAPI BOOL WINAPI UnmapViewOfFile(LPCVOID);
-#endif /* SQLITE_WIN32_FILEMAPPING_API */
-
-/*
-** Some Microsoft compilers lack this definition.
-*/
-#ifndef INVALID_FILE_ATTRIBUTES
-# define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
-#endif
-
-#ifndef FILE_FLAG_MASK
-# define FILE_FLAG_MASK          (0xFF3C0000)
-#endif
-
-#ifndef FILE_ATTRIBUTE_MASK
-# define FILE_ATTRIBUTE_MASK     (0x0003FFF7)
-#endif
-
-#ifndef SQLITE_OMIT_WAL
-/* Forward references to structures used for WAL */
-typedef struct winShm winShm;           /* A connection to shared-memory */
-typedef struct winShmNode winShmNode;   /* A region of shared-memory */
-#endif
-
-/*
-** WinCE lacks native support for file locking so we have to fake it
-** with some code of our own.
-*/
-#if SQLITE_OS_WINCE
-typedef struct winceLock {
-  int nReaders;       /* Number of reader locks obtained */
-  BOOL bPending;      /* Indicates a pending lock has been obtained */
-  BOOL bReserved;     /* Indicates a reserved lock has been obtained */
-  BOOL bExclusive;    /* Indicates an exclusive lock has been obtained */
-} winceLock;
-#endif
-
-/*
-** The winFile structure is a subclass of tdsqlite3_file* specific to the win32
-** portability layer.
-*/
-typedef struct winFile winFile;
-struct winFile {
-  const tdsqlite3_io_methods *pMethod; /*** Must be first ***/
-  tdsqlite3_vfs *pVfs;      /* The VFS used to open this file */
-  HANDLE h;               /* Handle for accessing the file */
-  u8 locktype;            /* Type of lock currently held on this file */
-  short sharedLockByte;   /* Randomly chosen byte used as a shared lock */
-  u8 ctrlFlags;           /* Flags.  See WINFILE_* below */
-  DWORD lastErrno;        /* The Windows errno from the last I/O error */
-#ifndef SQLITE_OMIT_WAL
-  winShm *pShm;           /* Instance of shared memory on this file */
-#endif
-  const char *zPath;      /* Full pathname of this file */
-  int szChunk;            /* Chunk size configured by FCNTL_CHUNK_SIZE */
-#if SQLITE_OS_WINCE
-  LPWSTR zDeleteOnClose;  /* Name of file to delete when closing */
-  HANDLE hMutex;          /* Mutex used to control access to shared lock */
-  HANDLE hShared;         /* Shared memory segment used for locking */
-  winceLock local;        /* Locks obtained by this instance of winFile */
-  winceLock *shared;      /* Global shared lock memory for the file  */
-#endif
-#if SQLITE_MAX_MMAP_SIZE>0
-  int nFetchOut;                /* Number of outstanding xFetch references */
-  HANDLE hMap;                  /* Handle for accessing memory mapping */
-  void *pMapRegion;             /* Area memory mapped */
-  tdsqlite3_int64 mmapSize;       /* Size of mapped region */
-  tdsqlite3_int64 mmapSizeMax;    /* Configured FCNTL_MMAP_SIZE value */
-#endif
-};
-
-/*
-** The winVfsAppData structure is used for the pAppData member for all of the
-** Win32 VFS variants.
-*/
-typedef struct winVfsAppData winVfsAppData;
-struct winVfsAppData {
-  const tdsqlite3_io_methods *pMethod; /* The file I/O methods to use. */
-  void *pAppData;                    /* The extra pAppData, if any. */
-  BOOL bNoLock;                      /* Non-zero if locking is disabled. */
-};
-
-/*
-** Allowed values for winFile.ctrlFlags
-*/
-#define WINFILE_RDONLY          0x02   /* Connection is read only */
-#define WINFILE_PERSIST_WAL     0x04   /* Persistent WAL mode */
-#define WINFILE_PSOW            0x10   /* SQLITE_IOCAP_POWERSAFE_OVERWRITE */
-
-/*
- * The size of the buffer used by tdsqlite3_win32_write_debug().
- */
-#ifndef SQLITE_WIN32_DBG_BUF_SIZE
-#  define SQLITE_WIN32_DBG_BUF_SIZE   ((int)(4096-sizeof(DWORD)))
-#endif
-
-/*
- * If compiled with SQLITE_WIN32_MALLOC on Windows, we will use the
- * various Win32 API heap functions instead of our own.
- */
-#ifdef SQLITE_WIN32_MALLOC
-
-/*
- * If this is non-zero, an isolated heap will be created by the native Win32
- * allocator subsystem; otherwise, the default process heap will be used.  This
- * setting has no effect when compiling for WinRT.  By default, this is enabled
- * and an isolated heap will be created to store all allocated data.
- *
- ******************************************************************************
- * WARNING: It is important to note that when this setting is non-zero and the
- *          winMemShutdown function is called (e.g. by the tdsqlite3_shutdown
- *          function), all data that was allocated using the isolated heap will
- *          be freed immediately and any attempt to access any of that freed
- *          data will almost certainly result in an immediate access violation.
- ******************************************************************************
- */
-#ifndef SQLITE_WIN32_HEAP_CREATE
-#  define SQLITE_WIN32_HEAP_CREATE        (TRUE)
-#endif
-
-/*
- * This is the maximum possible initial size of the Win32-specific heap, in
- * bytes.
- */
-#ifndef SQLITE_WIN32_HEAP_MAX_INIT_SIZE
-#  define SQLITE_WIN32_HEAP_MAX_INIT_SIZE (4294967295U)
-#endif
-
-/*
- * This is the extra space for the initial size of the Win32-specific heap,
- * in bytes.  This value may be zero.
- */
-#ifndef SQLITE_WIN32_HEAP_INIT_EXTRA
-#  define SQLITE_WIN32_HEAP_INIT_EXTRA  (4194304)
-#endif
-
-/*
- * Calculate the maximum legal cache size, in pages, based on the maximum
- * possible initial heap size and the default page size, setting aside the
- * needed extra space.
- */
-#ifndef SQLITE_WIN32_MAX_CACHE_SIZE
-#  define SQLITE_WIN32_MAX_CACHE_SIZE   (((SQLITE_WIN32_HEAP_MAX_INIT_SIZE) - \
-                                          (SQLITE_WIN32_HEAP_INIT_EXTRA)) / \
-                                         (SQLITE_DEFAULT_PAGE_SIZE))
-#endif
-
-/*
- * This is cache size used in the calculation of the initial size of the
- * Win32-specific heap.  It cannot be negative.
- */
-#ifndef SQLITE_WIN32_CACHE_SIZE
-#  if SQLITE_DEFAULT_CACHE_SIZE>=0
-#    define SQLITE_WIN32_CACHE_SIZE     (SQLITE_DEFAULT_CACHE_SIZE)
-#  else
-#    define SQLITE_WIN32_CACHE_SIZE     (-(SQLITE_DEFAULT_CACHE_SIZE))
-#  endif
-#endif
-
-/*
- * Make sure that the calculated cache size, in pages, cannot cause the
- * initial size of the Win32-specific heap to exceed the maximum amount
- * of memory that can be specified in the call to HeapCreate.
- */
-#if SQLITE_WIN32_CACHE_SIZE>SQLITE_WIN32_MAX_CACHE_SIZE
-#  undef SQLITE_WIN32_CACHE_SIZE
-#  define SQLITE_WIN32_CACHE_SIZE       (2000)
-#endif
-
-/*
- * The initial size of the Win32-specific heap.  This value may be zero.
- */
-#ifndef SQLITE_WIN32_HEAP_INIT_SIZE
-#  define SQLITE_WIN32_HEAP_INIT_SIZE   ((SQLITE_WIN32_CACHE_SIZE) * \
-                                         (SQLITE_DEFAULT_PAGE_SIZE) + \
-                                         (SQLITE_WIN32_HEAP_INIT_EXTRA))
-#endif
-
-/*
- * The maximum size of the Win32-specific heap.  This value may be zero.
- */
-#ifndef SQLITE_WIN32_HEAP_MAX_SIZE
-#  define SQLITE_WIN32_HEAP_MAX_SIZE    (0)
-#endif
-
-/*
- * The extra flags to use in calls to the Win32 heap APIs.  This value may be
- * zero for the default behavior.
- */
-#ifndef SQLITE_WIN32_HEAP_FLAGS
-#  define SQLITE_WIN32_HEAP_FLAGS       (0)
-#endif
-
-
-/*
-** The winMemData structure stores information required by the Win32-specific
-** tdsqlite3_mem_methods implementation.
-*/
-typedef struct winMemData winMemData;
-struct winMemData {
-#ifndef NDEBUG
-  u32 magic1;   /* Magic number to detect structure corruption. */
-#endif
-  HANDLE hHeap; /* The handle to our heap. */
-  BOOL bOwned;  /* Do we own the heap (i.e. destroy it on shutdown)? */
-#ifndef NDEBUG
-  u32 magic2;   /* Magic number to detect structure corruption. */
-#endif
-};
-
-#ifndef NDEBUG
-#define WINMEM_MAGIC1     0x42b2830b
-#define WINMEM_MAGIC2     0xbd4d7cf4
-#endif
-
-static struct winMemData win_mem_data = {
-#ifndef NDEBUG
-  WINMEM_MAGIC1,
-#endif
-  NULL, FALSE
-#ifndef NDEBUG
-  ,WINMEM_MAGIC2
-#endif
-};
-
-#ifndef NDEBUG
-#define winMemAssertMagic1() assert( win_mem_data.magic1==WINMEM_MAGIC1 )
-#define winMemAssertMagic2() assert( win_mem_data.magic2==WINMEM_MAGIC2 )
-#define winMemAssertMagic()  winMemAssertMagic1(); winMemAssertMagic2();
-#else
-#define winMemAssertMagic()
-#endif
-
-#define winMemGetDataPtr()  &win_mem_data
-#define winMemGetHeap()     win_mem_data.hHeap
-#define winMemGetOwned()    win_mem_data.bOwned
-
-static void *winMemMalloc(int nBytes);
-static void winMemFree(void *pPrior);
-static void *winMemRealloc(void *pPrior, int nBytes);
-static int winMemSize(void *p);
-static int winMemRoundup(int n);
-static int winMemInit(void *pAppData);
-static void winMemShutdown(void *pAppData);
-
-SQLITE_PRIVATE const tdsqlite3_mem_methods *tdsqlite3MemGetWin32(void);
-#endif /* SQLITE_WIN32_MALLOC */
-
-/*
-** The following variable is (normally) set once and never changes
-** thereafter.  It records whether the operating system is Win9x
-** or WinNT.
-**
-** 0:   Operating system unknown.
-** 1:   Operating system is Win9x.
-** 2:   Operating system is WinNT.
-**
-** In order to facilitate testing on a WinNT system, the test fixture
-** can manually set this value to 1 to emulate Win98 behavior.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API LONG SQLITE_WIN32_VOLATILE tdsqlite3_os_type = 0;
-#else
-static LONG SQLITE_WIN32_VOLATILE tdsqlite3_os_type = 0;
-#endif
-
-#ifndef SYSCALL
-#  define SYSCALL tdsqlite3_syscall_ptr
-#endif
-
-/*
-** This function is not available on Windows CE or WinRT.
- */
-
-#if SQLITE_OS_WINCE || SQLITE_OS_WINRT
-#  define osAreFileApisANSI()       1
-#endif
-
-/*
-** Many system calls are accessed through pointer-to-functions so that
-** they may be overridden at runtime to facilitate fault injection during
-** testing and sandboxing.  The following array holds the names and pointers
-** to all overrideable system calls.
-*/
-static struct win_syscall {
-  const char *zName;            /* Name of the system call */
-  tdsqlite3_syscall_ptr pCurrent; /* Current value of the system call */
-  tdsqlite3_syscall_ptr pDefault; /* Default value */
-} aSyscall[] = {
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT
-  { "AreFileApisANSI",         (SYSCALL)AreFileApisANSI,         0 },
-#else
-  { "AreFileApisANSI",         (SYSCALL)0,                       0 },
-#endif
-
-#ifndef osAreFileApisANSI
-#define osAreFileApisANSI ((BOOL(WINAPI*)(VOID))aSyscall[0].pCurrent)
-#endif
-
-#if SQLITE_OS_WINCE && defined(SQLITE_WIN32_HAS_WIDE)
-  { "CharLowerW",              (SYSCALL)CharLowerW,              0 },
-#else
-  { "CharLowerW",              (SYSCALL)0,                       0 },
-#endif
-
-#define osCharLowerW ((LPWSTR(WINAPI*)(LPWSTR))aSyscall[1].pCurrent)
-
-#if SQLITE_OS_WINCE && defined(SQLITE_WIN32_HAS_WIDE)
-  { "CharUpperW",              (SYSCALL)CharUpperW,              0 },
-#else
-  { "CharUpperW",              (SYSCALL)0,                       0 },
-#endif
-
-#define osCharUpperW ((LPWSTR(WINAPI*)(LPWSTR))aSyscall[2].pCurrent)
-
-  { "CloseHandle",             (SYSCALL)CloseHandle,             0 },
-
-#define osCloseHandle ((BOOL(WINAPI*)(HANDLE))aSyscall[3].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_ANSI)
-  { "CreateFileA",             (SYSCALL)CreateFileA,             0 },
-#else
-  { "CreateFileA",             (SYSCALL)0,                       0 },
-#endif
-
-#define osCreateFileA ((HANDLE(WINAPI*)(LPCSTR,DWORD,DWORD, \
-        LPSECURITY_ATTRIBUTES,DWORD,DWORD,HANDLE))aSyscall[4].pCurrent)
-
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE)
-  { "CreateFileW",             (SYSCALL)CreateFileW,             0 },
-#else
-  { "CreateFileW",             (SYSCALL)0,                       0 },
-#endif
-
-#define osCreateFileW ((HANDLE(WINAPI*)(LPCWSTR,DWORD,DWORD, \
-        LPSECURITY_ATTRIBUTES,DWORD,DWORD,HANDLE))aSyscall[5].pCurrent)
-
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_ANSI) && \
-        (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0) && \
-        SQLITE_WIN32_CREATEFILEMAPPINGA
-  { "CreateFileMappingA",      (SYSCALL)CreateFileMappingA,      0 },
-#else
-  { "CreateFileMappingA",      (SYSCALL)0,                       0 },
-#endif
-
-#define osCreateFileMappingA ((HANDLE(WINAPI*)(HANDLE,LPSECURITY_ATTRIBUTES, \
-        DWORD,DWORD,DWORD,LPCSTR))aSyscall[6].pCurrent)
-
-#if SQLITE_OS_WINCE || (!SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE) && \
-        (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0))
-  { "CreateFileMappingW",      (SYSCALL)CreateFileMappingW,      0 },
-#else
-  { "CreateFileMappingW",      (SYSCALL)0,                       0 },
-#endif
-
-#define osCreateFileMappingW ((HANDLE(WINAPI*)(HANDLE,LPSECURITY_ATTRIBUTES, \
-        DWORD,DWORD,DWORD,LPCWSTR))aSyscall[7].pCurrent)
-
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE)
-  { "CreateMutexW",            (SYSCALL)CreateMutexW,            0 },
-#else
-  { "CreateMutexW",            (SYSCALL)0,                       0 },
-#endif
-
-#define osCreateMutexW ((HANDLE(WINAPI*)(LPSECURITY_ATTRIBUTES,BOOL, \
-        LPCWSTR))aSyscall[8].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_ANSI)
-  { "DeleteFileA",             (SYSCALL)DeleteFileA,             0 },
-#else
-  { "DeleteFileA",             (SYSCALL)0,                       0 },
-#endif
-
-#define osDeleteFileA ((BOOL(WINAPI*)(LPCSTR))aSyscall[9].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_WIDE)
-  { "DeleteFileW",             (SYSCALL)DeleteFileW,             0 },
-#else
-  { "DeleteFileW",             (SYSCALL)0,                       0 },
-#endif
-
-#define osDeleteFileW ((BOOL(WINAPI*)(LPCWSTR))aSyscall[10].pCurrent)
-
-#if SQLITE_OS_WINCE
-  { "FileTimeToLocalFileTime", (SYSCALL)FileTimeToLocalFileTime, 0 },
-#else
-  { "FileTimeToLocalFileTime", (SYSCALL)0,                       0 },
-#endif
-
-#define osFileTimeToLocalFileTime ((BOOL(WINAPI*)(CONST FILETIME*, \
-        LPFILETIME))aSyscall[11].pCurrent)
-
-#if SQLITE_OS_WINCE
-  { "FileTimeToSystemTime",    (SYSCALL)FileTimeToSystemTime,    0 },
-#else
-  { "FileTimeToSystemTime",    (SYSCALL)0,                       0 },
-#endif
-
-#define osFileTimeToSystemTime ((BOOL(WINAPI*)(CONST FILETIME*, \
-        LPSYSTEMTIME))aSyscall[12].pCurrent)
-
-  { "FlushFileBuffers",        (SYSCALL)FlushFileBuffers,        0 },
-
-#define osFlushFileBuffers ((BOOL(WINAPI*)(HANDLE))aSyscall[13].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_ANSI)
-  { "FormatMessageA",          (SYSCALL)FormatMessageA,          0 },
-#else
-  { "FormatMessageA",          (SYSCALL)0,                       0 },
-#endif
-
-#define osFormatMessageA ((DWORD(WINAPI*)(DWORD,LPCVOID,DWORD,DWORD,LPSTR, \
-        DWORD,va_list*))aSyscall[14].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_WIDE)
-  { "FormatMessageW",          (SYSCALL)FormatMessageW,          0 },
-#else
-  { "FormatMessageW",          (SYSCALL)0,                       0 },
-#endif
-
-#define osFormatMessageW ((DWORD(WINAPI*)(DWORD,LPCVOID,DWORD,DWORD,LPWSTR, \
-        DWORD,va_list*))aSyscall[15].pCurrent)
-
-#if !defined(SQLITE_OMIT_LOAD_EXTENSION)
-  { "FreeLibrary",             (SYSCALL)FreeLibrary,             0 },
-#else
-  { "FreeLibrary",             (SYSCALL)0,                       0 },
-#endif
-
-#define osFreeLibrary ((BOOL(WINAPI*)(HMODULE))aSyscall[16].pCurrent)
-
-  { "GetCurrentProcessId",     (SYSCALL)GetCurrentProcessId,     0 },
-
-#define osGetCurrentProcessId ((DWORD(WINAPI*)(VOID))aSyscall[17].pCurrent)
-
-#if !SQLITE_OS_WINCE && defined(SQLITE_WIN32_HAS_ANSI)
-  { "GetDiskFreeSpaceA",       (SYSCALL)GetDiskFreeSpaceA,       0 },
-#else
-  { "GetDiskFreeSpaceA",       (SYSCALL)0,                       0 },
-#endif
-
-#define osGetDiskFreeSpaceA ((BOOL(WINAPI*)(LPCSTR,LPDWORD,LPDWORD,LPDWORD, \
-        LPDWORD))aSyscall[18].pCurrent)
-
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE)
-  { "GetDiskFreeSpaceW",       (SYSCALL)GetDiskFreeSpaceW,       0 },
-#else
-  { "GetDiskFreeSpaceW",       (SYSCALL)0,                       0 },
-#endif
-
-#define osGetDiskFreeSpaceW ((BOOL(WINAPI*)(LPCWSTR,LPDWORD,LPDWORD,LPDWORD, \
-        LPDWORD))aSyscall[19].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_ANSI)
-  { "GetFileAttributesA",      (SYSCALL)GetFileAttributesA,      0 },
-#else
-  { "GetFileAttributesA",      (SYSCALL)0,                       0 },
-#endif
-
-#define osGetFileAttributesA ((DWORD(WINAPI*)(LPCSTR))aSyscall[20].pCurrent)
-
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE)
-  { "GetFileAttributesW",      (SYSCALL)GetFileAttributesW,      0 },
-#else
-  { "GetFileAttributesW",      (SYSCALL)0,                       0 },
-#endif
-
-#define osGetFileAttributesW ((DWORD(WINAPI*)(LPCWSTR))aSyscall[21].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_WIDE)
-  { "GetFileAttributesExW",    (SYSCALL)GetFileAttributesExW,    0 },
-#else
-  { "GetFileAttributesExW",    (SYSCALL)0,                       0 },
-#endif
-
-#define osGetFileAttributesExW ((BOOL(WINAPI*)(LPCWSTR,GET_FILEEX_INFO_LEVELS, \
-        LPVOID))aSyscall[22].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "GetFileSize",             (SYSCALL)GetFileSize,             0 },
-#else
-  { "GetFileSize",             (SYSCALL)0,                       0 },
-#endif
-
-#define osGetFileSize ((DWORD(WINAPI*)(HANDLE,LPDWORD))aSyscall[23].pCurrent)
-
-#if !SQLITE_OS_WINCE && defined(SQLITE_WIN32_HAS_ANSI)
-  { "GetFullPathNameA",        (SYSCALL)GetFullPathNameA,        0 },
-#else
-  { "GetFullPathNameA",        (SYSCALL)0,                       0 },
-#endif
-
-#define osGetFullPathNameA ((DWORD(WINAPI*)(LPCSTR,DWORD,LPSTR, \
-        LPSTR*))aSyscall[24].pCurrent)
-
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE)
-  { "GetFullPathNameW",        (SYSCALL)GetFullPathNameW,        0 },
-#else
-  { "GetFullPathNameW",        (SYSCALL)0,                       0 },
-#endif
-
-#define osGetFullPathNameW ((DWORD(WINAPI*)(LPCWSTR,DWORD,LPWSTR, \
-        LPWSTR*))aSyscall[25].pCurrent)
-
-  { "GetLastError",            (SYSCALL)GetLastError,            0 },
-
-#define osGetLastError ((DWORD(WINAPI*)(VOID))aSyscall[26].pCurrent)
-
-#if !defined(SQLITE_OMIT_LOAD_EXTENSION)
-#if SQLITE_OS_WINCE
-  /* The GetProcAddressA() routine is only available on Windows CE. */
-  { "GetProcAddressA",         (SYSCALL)GetProcAddressA,         0 },
-#else
-  /* All other Windows platforms expect GetProcAddress() to take
-  ** an ANSI string regardless of the _UNICODE setting */
-  { "GetProcAddressA",         (SYSCALL)GetProcAddress,          0 },
-#endif
-#else
-  { "GetProcAddressA",         (SYSCALL)0,                       0 },
-#endif
-
-#define osGetProcAddressA ((FARPROC(WINAPI*)(HMODULE, \
-        LPCSTR))aSyscall[27].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "GetSystemInfo",           (SYSCALL)GetSystemInfo,           0 },
-#else
-  { "GetSystemInfo",           (SYSCALL)0,                       0 },
-#endif
-
-#define osGetSystemInfo ((VOID(WINAPI*)(LPSYSTEM_INFO))aSyscall[28].pCurrent)
-
-  { "GetSystemTime",           (SYSCALL)GetSystemTime,           0 },
-
-#define osGetSystemTime ((VOID(WINAPI*)(LPSYSTEMTIME))aSyscall[29].pCurrent)
-
-#if !SQLITE_OS_WINCE
-  { "GetSystemTimeAsFileTime", (SYSCALL)GetSystemTimeAsFileTime, 0 },
-#else
-  { "GetSystemTimeAsFileTime", (SYSCALL)0,                       0 },
-#endif
-
-#define osGetSystemTimeAsFileTime ((VOID(WINAPI*)( \
-        LPFILETIME))aSyscall[30].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_ANSI)
-  { "GetTempPathA",            (SYSCALL)GetTempPathA,            0 },
-#else
-  { "GetTempPathA",            (SYSCALL)0,                       0 },
-#endif
-
-#define osGetTempPathA ((DWORD(WINAPI*)(DWORD,LPSTR))aSyscall[31].pCurrent)
-
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE)
-  { "GetTempPathW",            (SYSCALL)GetTempPathW,            0 },
-#else
-  { "GetTempPathW",            (SYSCALL)0,                       0 },
-#endif
-
-#define osGetTempPathW ((DWORD(WINAPI*)(DWORD,LPWSTR))aSyscall[32].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "GetTickCount",            (SYSCALL)GetTickCount,            0 },
-#else
-  { "GetTickCount",            (SYSCALL)0,                       0 },
-#endif
-
-#define osGetTickCount ((DWORD(WINAPI*)(VOID))aSyscall[33].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_ANSI) && SQLITE_WIN32_GETVERSIONEX
-  { "GetVersionExA",           (SYSCALL)GetVersionExA,           0 },
-#else
-  { "GetVersionExA",           (SYSCALL)0,                       0 },
-#endif
-
-#define osGetVersionExA ((BOOL(WINAPI*)( \
-        LPOSVERSIONINFOA))aSyscall[34].pCurrent)
-
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE) && \
-        SQLITE_WIN32_GETVERSIONEX
-  { "GetVersionExW",           (SYSCALL)GetVersionExW,           0 },
-#else
-  { "GetVersionExW",           (SYSCALL)0,                       0 },
-#endif
-
-#define osGetVersionExW ((BOOL(WINAPI*)( \
-        LPOSVERSIONINFOW))aSyscall[35].pCurrent)
-
-  { "HeapAlloc",               (SYSCALL)HeapAlloc,               0 },
-
-#define osHeapAlloc ((LPVOID(WINAPI*)(HANDLE,DWORD, \
-        SIZE_T))aSyscall[36].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "HeapCreate",              (SYSCALL)HeapCreate,              0 },
-#else
-  { "HeapCreate",              (SYSCALL)0,                       0 },
-#endif
-
-#define osHeapCreate ((HANDLE(WINAPI*)(DWORD,SIZE_T, \
-        SIZE_T))aSyscall[37].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "HeapDestroy",             (SYSCALL)HeapDestroy,             0 },
-#else
-  { "HeapDestroy",             (SYSCALL)0,                       0 },
-#endif
-
-#define osHeapDestroy ((BOOL(WINAPI*)(HANDLE))aSyscall[38].pCurrent)
-
-  { "HeapFree",                (SYSCALL)HeapFree,                0 },
-
-#define osHeapFree ((BOOL(WINAPI*)(HANDLE,DWORD,LPVOID))aSyscall[39].pCurrent)
-
-  { "HeapReAlloc",             (SYSCALL)HeapReAlloc,             0 },
-
-#define osHeapReAlloc ((LPVOID(WINAPI*)(HANDLE,DWORD,LPVOID, \
-        SIZE_T))aSyscall[40].pCurrent)
-
-  { "HeapSize",                (SYSCALL)HeapSize,                0 },
-
-#define osHeapSize ((SIZE_T(WINAPI*)(HANDLE,DWORD, \
-        LPCVOID))aSyscall[41].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "HeapValidate",            (SYSCALL)HeapValidate,            0 },
-#else
-  { "HeapValidate",            (SYSCALL)0,                       0 },
-#endif
-
-#define osHeapValidate ((BOOL(WINAPI*)(HANDLE,DWORD, \
-        LPCVOID))aSyscall[42].pCurrent)
-
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT
-  { "HeapCompact",             (SYSCALL)HeapCompact,             0 },
-#else
-  { "HeapCompact",             (SYSCALL)0,                       0 },
-#endif
-
-#define osHeapCompact ((UINT(WINAPI*)(HANDLE,DWORD))aSyscall[43].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_ANSI) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
-  { "LoadLibraryA",            (SYSCALL)LoadLibraryA,            0 },
-#else
-  { "LoadLibraryA",            (SYSCALL)0,                       0 },
-#endif
-
-#define osLoadLibraryA ((HMODULE(WINAPI*)(LPCSTR))aSyscall[44].pCurrent)
-
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_HAS_WIDE) && \
-        !defined(SQLITE_OMIT_LOAD_EXTENSION)
-  { "LoadLibraryW",            (SYSCALL)LoadLibraryW,            0 },
-#else
-  { "LoadLibraryW",            (SYSCALL)0,                       0 },
-#endif
-
-#define osLoadLibraryW ((HMODULE(WINAPI*)(LPCWSTR))aSyscall[45].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "LocalFree",               (SYSCALL)LocalFree,               0 },
-#else
-  { "LocalFree",               (SYSCALL)0,                       0 },
-#endif
-
-#define osLocalFree ((HLOCAL(WINAPI*)(HLOCAL))aSyscall[46].pCurrent)
-
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT
-  { "LockFile",                (SYSCALL)LockFile,                0 },
-#else
-  { "LockFile",                (SYSCALL)0,                       0 },
-#endif
-
-#ifndef osLockFile
-#define osLockFile ((BOOL(WINAPI*)(HANDLE,DWORD,DWORD,DWORD, \
-        DWORD))aSyscall[47].pCurrent)
-#endif
-
-#if !SQLITE_OS_WINCE
-  { "LockFileEx",              (SYSCALL)LockFileEx,              0 },
-#else
-  { "LockFileEx",              (SYSCALL)0,                       0 },
-#endif
-
-#ifndef osLockFileEx
-#define osLockFileEx ((BOOL(WINAPI*)(HANDLE,DWORD,DWORD,DWORD,DWORD, \
-        LPOVERLAPPED))aSyscall[48].pCurrent)
-#endif
-
-#if SQLITE_OS_WINCE || (!SQLITE_OS_WINRT && \
-        (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0))
-  { "MapViewOfFile",           (SYSCALL)MapViewOfFile,           0 },
-#else
-  { "MapViewOfFile",           (SYSCALL)0,                       0 },
-#endif
-
-#define osMapViewOfFile ((LPVOID(WINAPI*)(HANDLE,DWORD,DWORD,DWORD, \
-        SIZE_T))aSyscall[49].pCurrent)
-
-  { "MultiByteToWideChar",     (SYSCALL)MultiByteToWideChar,     0 },
-
-#define osMultiByteToWideChar ((int(WINAPI*)(UINT,DWORD,LPCSTR,int,LPWSTR, \
-        int))aSyscall[50].pCurrent)
-
-  { "QueryPerformanceCounter", (SYSCALL)QueryPerformanceCounter, 0 },
-
-#define osQueryPerformanceCounter ((BOOL(WINAPI*)( \
-        LARGE_INTEGER*))aSyscall[51].pCurrent)
-
-  { "ReadFile",                (SYSCALL)ReadFile,                0 },
-
-#define osReadFile ((BOOL(WINAPI*)(HANDLE,LPVOID,DWORD,LPDWORD, \
-        LPOVERLAPPED))aSyscall[52].pCurrent)
-
-  { "SetEndOfFile",            (SYSCALL)SetEndOfFile,            0 },
-
-#define osSetEndOfFile ((BOOL(WINAPI*)(HANDLE))aSyscall[53].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "SetFilePointer",          (SYSCALL)SetFilePointer,          0 },
-#else
-  { "SetFilePointer",          (SYSCALL)0,                       0 },
-#endif
-
-#define osSetFilePointer ((DWORD(WINAPI*)(HANDLE,LONG,PLONG, \
-        DWORD))aSyscall[54].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "Sleep",                   (SYSCALL)Sleep,                   0 },
-#else
-  { "Sleep",                   (SYSCALL)0,                       0 },
-#endif
-
-#define osSleep ((VOID(WINAPI*)(DWORD))aSyscall[55].pCurrent)
-
-  { "SystemTimeToFileTime",    (SYSCALL)SystemTimeToFileTime,    0 },
-
-#define osSystemTimeToFileTime ((BOOL(WINAPI*)(CONST SYSTEMTIME*, \
-        LPFILETIME))aSyscall[56].pCurrent)
-
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT
-  { "UnlockFile",              (SYSCALL)UnlockFile,              0 },
-#else
-  { "UnlockFile",              (SYSCALL)0,                       0 },
-#endif
-
-#ifndef osUnlockFile
-#define osUnlockFile ((BOOL(WINAPI*)(HANDLE,DWORD,DWORD,DWORD, \
-        DWORD))aSyscall[57].pCurrent)
-#endif
-
-#if !SQLITE_OS_WINCE
-  { "UnlockFileEx",            (SYSCALL)UnlockFileEx,            0 },
-#else
-  { "UnlockFileEx",            (SYSCALL)0,                       0 },
-#endif
-
-#define osUnlockFileEx ((BOOL(WINAPI*)(HANDLE,DWORD,DWORD,DWORD, \
-        LPOVERLAPPED))aSyscall[58].pCurrent)
-
-#if SQLITE_OS_WINCE || !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
-  { "UnmapViewOfFile",         (SYSCALL)UnmapViewOfFile,         0 },
-#else
-  { "UnmapViewOfFile",         (SYSCALL)0,                       0 },
-#endif
-
-#define osUnmapViewOfFile ((BOOL(WINAPI*)(LPCVOID))aSyscall[59].pCurrent)
-
-  { "WideCharToMultiByte",     (SYSCALL)WideCharToMultiByte,     0 },
-
-#define osWideCharToMultiByte ((int(WINAPI*)(UINT,DWORD,LPCWSTR,int,LPSTR,int, \
-        LPCSTR,LPBOOL))aSyscall[60].pCurrent)
-
-  { "WriteFile",               (SYSCALL)WriteFile,               0 },
-
-#define osWriteFile ((BOOL(WINAPI*)(HANDLE,LPCVOID,DWORD,LPDWORD, \
-        LPOVERLAPPED))aSyscall[61].pCurrent)
-
-#if SQLITE_OS_WINRT
-  { "CreateEventExW",          (SYSCALL)CreateEventExW,          0 },
-#else
-  { "CreateEventExW",          (SYSCALL)0,                       0 },
-#endif
-
-#define osCreateEventExW ((HANDLE(WINAPI*)(LPSECURITY_ATTRIBUTES,LPCWSTR, \
-        DWORD,DWORD))aSyscall[62].pCurrent)
-
-#if !SQLITE_OS_WINRT
-  { "WaitForSingleObject",     (SYSCALL)WaitForSingleObject,     0 },
-#else
-  { "WaitForSingleObject",     (SYSCALL)0,                       0 },
-#endif
-
-#define osWaitForSingleObject ((DWORD(WINAPI*)(HANDLE, \
-        DWORD))aSyscall[63].pCurrent)
-
-#if !SQLITE_OS_WINCE
-  { "WaitForSingleObjectEx",   (SYSCALL)WaitForSingleObjectEx,   0 },
-#else
-  { "WaitForSingleObjectEx",   (SYSCALL)0,                       0 },
-#endif
-
-#define osWaitForSingleObjectEx ((DWORD(WINAPI*)(HANDLE,DWORD, \
-        BOOL))aSyscall[64].pCurrent)
-
-#if SQLITE_OS_WINRT
-  { "SetFilePointerEx",        (SYSCALL)SetFilePointerEx,        0 },
-#else
-  { "SetFilePointerEx",        (SYSCALL)0,                       0 },
-#endif
-
-#define osSetFilePointerEx ((BOOL(WINAPI*)(HANDLE,LARGE_INTEGER, \
-        PLARGE_INTEGER,DWORD))aSyscall[65].pCurrent)
-
-#if SQLITE_OS_WINRT
-  { "GetFileInformationByHandleEx", (SYSCALL)GetFileInformationByHandleEx, 0 },
-#else
-  { "GetFileInformationByHandleEx", (SYSCALL)0,                  0 },
-#endif
-
-#define osGetFileInformationByHandleEx ((BOOL(WINAPI*)(HANDLE, \
-        FILE_INFO_BY_HANDLE_CLASS,LPVOID,DWORD))aSyscall[66].pCurrent)
-
-#if SQLITE_OS_WINRT && (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0)
-  { "MapViewOfFileFromApp",    (SYSCALL)MapViewOfFileFromApp,    0 },
-#else
-  { "MapViewOfFileFromApp",    (SYSCALL)0,                       0 },
-#endif
-
-#define osMapViewOfFileFromApp ((LPVOID(WINAPI*)(HANDLE,ULONG,ULONG64, \
-        SIZE_T))aSyscall[67].pCurrent)
-
-#if SQLITE_OS_WINRT
-  { "CreateFile2",             (SYSCALL)CreateFile2,             0 },
-#else
-  { "CreateFile2",             (SYSCALL)0,                       0 },
-#endif
-
-#define osCreateFile2 ((HANDLE(WINAPI*)(LPCWSTR,DWORD,DWORD,DWORD, \
-        LPCREATEFILE2_EXTENDED_PARAMETERS))aSyscall[68].pCurrent)
-
-#if SQLITE_OS_WINRT && !defined(SQLITE_OMIT_LOAD_EXTENSION)
-  { "LoadPackagedLibrary",     (SYSCALL)LoadPackagedLibrary,     0 },
-#else
-  { "LoadPackagedLibrary",     (SYSCALL)0,                       0 },
-#endif
-
-#define osLoadPackagedLibrary ((HMODULE(WINAPI*)(LPCWSTR, \
-        DWORD))aSyscall[69].pCurrent)
-
-#if SQLITE_OS_WINRT
-  { "GetTickCount64",          (SYSCALL)GetTickCount64,          0 },
-#else
-  { "GetTickCount64",          (SYSCALL)0,                       0 },
-#endif
-
-#define osGetTickCount64 ((ULONGLONG(WINAPI*)(VOID))aSyscall[70].pCurrent)
-
-#if SQLITE_OS_WINRT
-  { "GetNativeSystemInfo",     (SYSCALL)GetNativeSystemInfo,     0 },
-#else
-  { "GetNativeSystemInfo",     (SYSCALL)0,                       0 },
-#endif
-
-#define osGetNativeSystemInfo ((VOID(WINAPI*)( \
-        LPSYSTEM_INFO))aSyscall[71].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_ANSI)
-  { "OutputDebugStringA",      (SYSCALL)OutputDebugStringA,      0 },
-#else
-  { "OutputDebugStringA",      (SYSCALL)0,                       0 },
-#endif
-
-#define osOutputDebugStringA ((VOID(WINAPI*)(LPCSTR))aSyscall[72].pCurrent)
-
-#if defined(SQLITE_WIN32_HAS_WIDE)
-  { "OutputDebugStringW",      (SYSCALL)OutputDebugStringW,      0 },
-#else
-  { "OutputDebugStringW",      (SYSCALL)0,                       0 },
-#endif
-
-#define osOutputDebugStringW ((VOID(WINAPI*)(LPCWSTR))aSyscall[73].pCurrent)
-
-  { "GetProcessHeap",          (SYSCALL)GetProcessHeap,          0 },
-
-#define osGetProcessHeap ((HANDLE(WINAPI*)(VOID))aSyscall[74].pCurrent)
-
-#if SQLITE_OS_WINRT && (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0)
-  { "CreateFileMappingFromApp", (SYSCALL)CreateFileMappingFromApp, 0 },
-#else
-  { "CreateFileMappingFromApp", (SYSCALL)0,                      0 },
-#endif
-
-#define osCreateFileMappingFromApp ((HANDLE(WINAPI*)(HANDLE, \
-        LPSECURITY_ATTRIBUTES,ULONG,ULONG64,LPCWSTR))aSyscall[75].pCurrent)
-
-/*
-** NOTE: On some sub-platforms, the InterlockedCompareExchange "function"
-**       is really just a macro that uses a compiler intrinsic (e.g. x64).
-**       So do not try to make this is into a redefinable interface.
-*/
-#if defined(InterlockedCompareExchange)
-  { "InterlockedCompareExchange", (SYSCALL)0,                    0 },
-
-#define osInterlockedCompareExchange InterlockedCompareExchange
-#else
-  { "InterlockedCompareExchange", (SYSCALL)InterlockedCompareExchange, 0 },
-
-#define osInterlockedCompareExchange ((LONG(WINAPI*)(LONG \
-        SQLITE_WIN32_VOLATILE*, LONG,LONG))aSyscall[76].pCurrent)
-#endif /* defined(InterlockedCompareExchange) */
-
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && SQLITE_WIN32_USE_UUID
-  { "UuidCreate",               (SYSCALL)UuidCreate,             0 },
-#else
-  { "UuidCreate",               (SYSCALL)0,                      0 },
-#endif
-
-#define osUuidCreate ((RPC_STATUS(RPC_ENTRY*)(UUID*))aSyscall[77].pCurrent)
-
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && SQLITE_WIN32_USE_UUID
-  { "UuidCreateSequential",     (SYSCALL)UuidCreateSequential,   0 },
-#else
-  { "UuidCreateSequential",     (SYSCALL)0,                      0 },
-#endif
-
-#define osUuidCreateSequential \
-        ((RPC_STATUS(RPC_ENTRY*)(UUID*))aSyscall[78].pCurrent)
-
-#if !defined(SQLITE_NO_SYNC) && SQLITE_MAX_MMAP_SIZE>0
-  { "FlushViewOfFile",          (SYSCALL)FlushViewOfFile,        0 },
-#else
-  { "FlushViewOfFile",          (SYSCALL)0,                      0 },
-#endif
-
-#define osFlushViewOfFile \
-        ((BOOL(WINAPI*)(LPCVOID,SIZE_T))aSyscall[79].pCurrent)
-
-}; /* End of the overrideable system calls */
-
-/*
-** This is the xSetSystemCall() method of tdsqlite3_vfs for all of the
-** "win32" VFSes.  Return SQLITE_OK opon successfully updating the
-** system call pointer, or SQLITE_NOTFOUND if there is no configurable
-** system call named zName.
-*/
-static int winSetSystemCall(
-  tdsqlite3_vfs *pNotUsed,        /* The VFS pointer.  Not used */
-  const char *zName,            /* Name of system call to override */
-  tdsqlite3_syscall_ptr pNewFunc  /* Pointer to new system call value */
-){
-  unsigned int i;
-  int rc = SQLITE_NOTFOUND;
-
-  UNUSED_PARAMETER(pNotUsed);
-  if( zName==0 ){
-    /* If no zName is given, restore all system calls to their default
-    ** settings and return NULL
-    */
-    rc = SQLITE_OK;
-    for(i=0; i<sizeof(aSyscall)/sizeof(aSyscall[0]); i++){
-      if( aSyscall[i].pDefault ){
-        aSyscall[i].pCurrent = aSyscall[i].pDefault;
-      }
-    }
-  }else{
-    /* If zName is specified, operate on only the one system call
-    ** specified.
-    */
-    for(i=0; i<sizeof(aSyscall)/sizeof(aSyscall[0]); i++){
-      if( strcmp(zName, aSyscall[i].zName)==0 ){
-        if( aSyscall[i].pDefault==0 ){
-          aSyscall[i].pDefault = aSyscall[i].pCurrent;
-        }
-        rc = SQLITE_OK;
-        if( pNewFunc==0 ) pNewFunc = aSyscall[i].pDefault;
-        aSyscall[i].pCurrent = pNewFunc;
-        break;
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** Return the value of a system call.  Return NULL if zName is not a
-** recognized system call name.  NULL is also returned if the system call
-** is currently undefined.
-*/
-static tdsqlite3_syscall_ptr winGetSystemCall(
-  tdsqlite3_vfs *pNotUsed,
-  const char *zName
-){
-  unsigned int i;
-
-  UNUSED_PARAMETER(pNotUsed);
-  for(i=0; i<sizeof(aSyscall)/sizeof(aSyscall[0]); i++){
-    if( strcmp(zName, aSyscall[i].zName)==0 ) return aSyscall[i].pCurrent;
-  }
-  return 0;
-}
-
-/*
-** Return the name of the first system call after zName.  If zName==NULL
-** then return the name of the first system call.  Return NULL if zName
-** is the last system call or if zName is not the name of a valid
-** system call.
-*/
-static const char *winNextSystemCall(tdsqlite3_vfs *p, const char *zName){
-  int i = -1;
-
-  UNUSED_PARAMETER(p);
-  if( zName ){
-    for(i=0; i<ArraySize(aSyscall)-1; i++){
-      if( strcmp(zName, aSyscall[i].zName)==0 ) break;
-    }
-  }
-  for(i++; i<ArraySize(aSyscall); i++){
-    if( aSyscall[i].pCurrent!=0 ) return aSyscall[i].zName;
-  }
-  return 0;
-}
-
-#ifdef SQLITE_WIN32_MALLOC
-/*
-** If a Win32 native heap has been configured, this function will attempt to
-** compact it.  Upon success, SQLITE_OK will be returned.  Upon failure, one
-** of SQLITE_NOMEM, SQLITE_ERROR, or SQLITE_NOTFOUND will be returned.  The
-** "pnLargest" argument, if non-zero, will be used to return the size of the
-** largest committed free block in the heap, in bytes.
-*/
-SQLITE_API int tdsqlite3_win32_compact_heap(LPUINT pnLargest){
-  int rc = SQLITE_OK;
-  UINT nLargest = 0;
-  HANDLE hHeap;
-
-  winMemAssertMagic();
-  hHeap = winMemGetHeap();
-  assert( hHeap!=0 );
-  assert( hHeap!=INVALID_HANDLE_VALUE );
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_MALLOC_VALIDATE)
-  assert( osHeapValidate(hHeap, SQLITE_WIN32_HEAP_FLAGS, NULL) );
-#endif
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT
-  if( (nLargest=osHeapCompact(hHeap, SQLITE_WIN32_HEAP_FLAGS))==0 ){
-    DWORD lastErrno = osGetLastError();
-    if( lastErrno==NO_ERROR ){
-      tdsqlite3_log(SQLITE_NOMEM, "failed to HeapCompact (no space), heap=%p",
-                  (void*)hHeap);
-      rc = SQLITE_NOMEM_BKPT;
-    }else{
-      tdsqlite3_log(SQLITE_ERROR, "failed to HeapCompact (%lu), heap=%p",
-                  osGetLastError(), (void*)hHeap);
-      rc = SQLITE_ERROR;
-    }
-  }
-#else
-  tdsqlite3_log(SQLITE_NOTFOUND, "failed to HeapCompact, heap=%p",
-              (void*)hHeap);
-  rc = SQLITE_NOTFOUND;
-#endif
-  if( pnLargest ) *pnLargest = nLargest;
-  return rc;
-}
-
-/*
-** If a Win32 native heap has been configured, this function will attempt to
-** destroy and recreate it.  If the Win32 native heap is not isolated and/or
-** the tdsqlite3_memory_used() function does not return zero, SQLITE_BUSY will
-** be returned and no changes will be made to the Win32 native heap.
-*/
-SQLITE_API int tdsqlite3_win32_reset_heap(){
-  int rc;
-  MUTEX_LOGIC( tdsqlite3_mutex *pMaster; ) /* The main static mutex */
-  MUTEX_LOGIC( tdsqlite3_mutex *pMem; )    /* The memsys static mutex */
-  MUTEX_LOGIC( pMaster = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); )
-  MUTEX_LOGIC( pMem = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM); )
-  tdsqlite3_mutex_enter(pMaster);
-  tdsqlite3_mutex_enter(pMem);
-  winMemAssertMagic();
-  if( winMemGetHeap()!=NULL && winMemGetOwned() && tdsqlite3_memory_used()==0 ){
-    /*
-    ** At this point, there should be no outstanding memory allocations on
-    ** the heap.  Also, since both the master and memsys locks are currently
-    ** being held by us, no other function (i.e. from another thread) should
-    ** be able to even access the heap.  Attempt to destroy and recreate our
-    ** isolated Win32 native heap now.
-    */
-    assert( winMemGetHeap()!=NULL );
-    assert( winMemGetOwned() );
-    assert( tdsqlite3_memory_used()==0 );
-    winMemShutdown(winMemGetDataPtr());
-    assert( winMemGetHeap()==NULL );
-    assert( !winMemGetOwned() );
-    assert( tdsqlite3_memory_used()==0 );
-    rc = winMemInit(winMemGetDataPtr());
-    assert( rc!=SQLITE_OK || winMemGetHeap()!=NULL );
-    assert( rc!=SQLITE_OK || winMemGetOwned() );
-    assert( rc!=SQLITE_OK || tdsqlite3_memory_used()==0 );
-  }else{
-    /*
-    ** The Win32 native heap cannot be modified because it may be in use.
-    */
-    rc = SQLITE_BUSY;
-  }
-  tdsqlite3_mutex_leave(pMem);
-  tdsqlite3_mutex_leave(pMaster);
-  return rc;
-}
-#endif /* SQLITE_WIN32_MALLOC */
-
-/*
-** This function outputs the specified (ANSI) string to the Win32 debugger
-** (if available).
-*/
-
-SQLITE_API void tdsqlite3_win32_write_debug(const char *zBuf, int nBuf){
-  char zDbgBuf[SQLITE_WIN32_DBG_BUF_SIZE];
-  int nMin = MIN(nBuf, (SQLITE_WIN32_DBG_BUF_SIZE - 1)); /* may be negative. */
-  if( nMin<-1 ) nMin = -1; /* all negative values become -1. */
-  assert( nMin==-1 || nMin==0 || nMin<SQLITE_WIN32_DBG_BUF_SIZE );
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !zBuf ){
-    (void)SQLITE_MISUSE_BKPT;
-    return;
-  }
-#endif
-#if defined(SQLITE_WIN32_HAS_ANSI)
-  if( nMin>0 ){
-    memset(zDbgBuf, 0, SQLITE_WIN32_DBG_BUF_SIZE);
-    memcpy(zDbgBuf, zBuf, nMin);
-    osOutputDebugStringA(zDbgBuf);
-  }else{
-    osOutputDebugStringA(zBuf);
-  }
-#elif defined(SQLITE_WIN32_HAS_WIDE)
-  memset(zDbgBuf, 0, SQLITE_WIN32_DBG_BUF_SIZE);
-  if ( osMultiByteToWideChar(
-          osAreFileApisANSI() ? CP_ACP : CP_OEMCP, 0, zBuf,
-          nMin, (LPWSTR)zDbgBuf, SQLITE_WIN32_DBG_BUF_SIZE/sizeof(WCHAR))<=0 ){
-    return;
-  }
-  osOutputDebugStringW((LPCWSTR)zDbgBuf);
-#else
-  if( nMin>0 ){
-    memset(zDbgBuf, 0, SQLITE_WIN32_DBG_BUF_SIZE);
-    memcpy(zDbgBuf, zBuf, nMin);
-    fprintf(stderr, "%s", zDbgBuf);
-  }else{
-    fprintf(stderr, "%s", zBuf);
-  }
-#endif
-}
-
-/*
-** The following routine suspends the current thread for at least ms
-** milliseconds.  This is equivalent to the Win32 Sleep() interface.
-*/
-#if SQLITE_OS_WINRT
-static HANDLE sleepObj = NULL;
-#endif
-
-SQLITE_API void tdsqlite3_win32_sleep(DWORD milliseconds){
-#if SQLITE_OS_WINRT
-  if ( sleepObj==NULL ){
-    sleepObj = osCreateEventExW(NULL, NULL, CREATE_EVENT_MANUAL_RESET,
-                                SYNCHRONIZE);
-  }
-  assert( sleepObj!=NULL );
-  osWaitForSingleObjectEx(sleepObj, milliseconds, FALSE);
-#else
-  osSleep(milliseconds);
-#endif
-}
-
-#if SQLITE_MAX_WORKER_THREADS>0 && !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && \
-        SQLITE_THREADSAFE>0
-SQLITE_PRIVATE DWORD tdsqlite3Win32Wait(HANDLE hObject){
-  DWORD rc;
-  while( (rc = osWaitForSingleObjectEx(hObject, INFINITE,
-                                       TRUE))==WAIT_IO_COMPLETION ){}
-  return rc;
-}
-#endif
-
-/*
-** Return true (non-zero) if we are running under WinNT, Win2K, WinXP,
-** or WinCE.  Return false (zero) for Win95, Win98, or WinME.
-**
-** Here is an interesting observation:  Win95, Win98, and WinME lack
-** the LockFileEx() API.  But we can still statically link against that
-** API as long as we don't call it when running Win95/98/ME.  A call to
-** this routine is used to determine if the host is Win95/98/ME or
-** WinNT/2K/XP so that we will know whether or not we can safely call
-** the LockFileEx() API.
-*/
-
-#if !SQLITE_WIN32_GETVERSIONEX
-# define osIsNT()  (1)
-#elif SQLITE_OS_WINCE || SQLITE_OS_WINRT || !defined(SQLITE_WIN32_HAS_ANSI)
-# define osIsNT()  (1)
-#elif !defined(SQLITE_WIN32_HAS_WIDE)
-# define osIsNT()  (0)
-#else
-# define osIsNT()  ((tdsqlite3_os_type==2) || tdsqlite3_win32_is_nt())
-#endif
-
-/*
-** This function determines if the machine is running a version of Windows
-** based on the NT kernel.
-*/
-SQLITE_API int tdsqlite3_win32_is_nt(void){
-#if SQLITE_OS_WINRT
-  /*
-  ** NOTE: The WinRT sub-platform is always assumed to be based on the NT
-  **       kernel.
-  */
-  return 1;
-#elif SQLITE_WIN32_GETVERSIONEX
-  if( osInterlockedCompareExchange(&tdsqlite3_os_type, 0, 0)==0 ){
-#if defined(SQLITE_WIN32_HAS_ANSI)
-    OSVERSIONINFOA sInfo;
-    sInfo.dwOSVersionInfoSize = sizeof(sInfo);
-    osGetVersionExA(&sInfo);
-    osInterlockedCompareExchange(&tdsqlite3_os_type,
-        (sInfo.dwPlatformId == VER_PLATFORM_WIN32_NT) ? 2 : 1, 0);
-#elif defined(SQLITE_WIN32_HAS_WIDE)
-    OSVERSIONINFOW sInfo;
-    sInfo.dwOSVersionInfoSize = sizeof(sInfo);
-    osGetVersionExW(&sInfo);
-    osInterlockedCompareExchange(&tdsqlite3_os_type,
-        (sInfo.dwPlatformId == VER_PLATFORM_WIN32_NT) ? 2 : 1, 0);
-#endif
-  }
-  return osInterlockedCompareExchange(&tdsqlite3_os_type, 2, 2)==2;
-#elif SQLITE_TEST
-  return osInterlockedCompareExchange(&tdsqlite3_os_type, 2, 2)==2;
-#else
-  /*
-  ** NOTE: All sub-platforms where the GetVersionEx[AW] functions are
-  **       deprecated are always assumed to be based on the NT kernel.
-  */
-  return 1;
-#endif
-}
-
-#ifdef SQLITE_WIN32_MALLOC
-/*
-** Allocate nBytes of memory.
-*/
-static void *winMemMalloc(int nBytes){
-  HANDLE hHeap;
-  void *p;
-
-  winMemAssertMagic();
-  hHeap = winMemGetHeap();
-  assert( hHeap!=0 );
-  assert( hHeap!=INVALID_HANDLE_VALUE );
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_MALLOC_VALIDATE)
-  assert( osHeapValidate(hHeap, SQLITE_WIN32_HEAP_FLAGS, NULL) );
-#endif
-  assert( nBytes>=0 );
-  p = osHeapAlloc(hHeap, SQLITE_WIN32_HEAP_FLAGS, (SIZE_T)nBytes);
-  if( !p ){
-    tdsqlite3_log(SQLITE_NOMEM, "failed to HeapAlloc %u bytes (%lu), heap=%p",
-                nBytes, osGetLastError(), (void*)hHeap);
-  }
-  return p;
-}
-
-/*
-** Free memory.
-*/
-static void winMemFree(void *pPrior){
-  HANDLE hHeap;
-
-  winMemAssertMagic();
-  hHeap = winMemGetHeap();
-  assert( hHeap!=0 );
-  assert( hHeap!=INVALID_HANDLE_VALUE );
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_MALLOC_VALIDATE)
-  assert( osHeapValidate(hHeap, SQLITE_WIN32_HEAP_FLAGS, pPrior) );
-#endif
-  if( !pPrior ) return; /* Passing NULL to HeapFree is undefined. */
-  if( !osHeapFree(hHeap, SQLITE_WIN32_HEAP_FLAGS, pPrior) ){
-    tdsqlite3_log(SQLITE_NOMEM, "failed to HeapFree block %p (%lu), heap=%p",
-                pPrior, osGetLastError(), (void*)hHeap);
-  }
-}
-
-/*
-** Change the size of an existing memory allocation
-*/
-static void *winMemRealloc(void *pPrior, int nBytes){
-  HANDLE hHeap;
-  void *p;
-
-  winMemAssertMagic();
-  hHeap = winMemGetHeap();
-  assert( hHeap!=0 );
-  assert( hHeap!=INVALID_HANDLE_VALUE );
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_MALLOC_VALIDATE)
-  assert( osHeapValidate(hHeap, SQLITE_WIN32_HEAP_FLAGS, pPrior) );
-#endif
-  assert( nBytes>=0 );
-  if( !pPrior ){
-    p = osHeapAlloc(hHeap, SQLITE_WIN32_HEAP_FLAGS, (SIZE_T)nBytes);
-  }else{
-    p = osHeapReAlloc(hHeap, SQLITE_WIN32_HEAP_FLAGS, pPrior, (SIZE_T)nBytes);
-  }
-  if( !p ){
-    tdsqlite3_log(SQLITE_NOMEM, "failed to %s %u bytes (%lu), heap=%p",
-                pPrior ? "HeapReAlloc" : "HeapAlloc", nBytes, osGetLastError(),
-                (void*)hHeap);
-  }
-  return p;
-}
-
-/*
-** Return the size of an outstanding allocation, in bytes.
-*/
-static int winMemSize(void *p){
-  HANDLE hHeap;
-  SIZE_T n;
-
-  winMemAssertMagic();
-  hHeap = winMemGetHeap();
-  assert( hHeap!=0 );
-  assert( hHeap!=INVALID_HANDLE_VALUE );
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_MALLOC_VALIDATE)
-  assert( osHeapValidate(hHeap, SQLITE_WIN32_HEAP_FLAGS, p) );
-#endif
-  if( !p ) return 0;
-  n = osHeapSize(hHeap, SQLITE_WIN32_HEAP_FLAGS, p);
-  if( n==(SIZE_T)-1 ){
-    tdsqlite3_log(SQLITE_NOMEM, "failed to HeapSize block %p (%lu), heap=%p",
-                p, osGetLastError(), (void*)hHeap);
-    return 0;
-  }
-  return (int)n;
-}
-
-/*
-** Round up a request size to the next valid allocation size.
-*/
-static int winMemRoundup(int n){
-  return n;
-}
-
-/*
-** Initialize this module.
-*/
-static int winMemInit(void *pAppData){
-  winMemData *pWinMemData = (winMemData *)pAppData;
-
-  if( !pWinMemData ) return SQLITE_ERROR;
-  assert( pWinMemData->magic1==WINMEM_MAGIC1 );
-  assert( pWinMemData->magic2==WINMEM_MAGIC2 );
-
-#if !SQLITE_OS_WINRT && SQLITE_WIN32_HEAP_CREATE
-  if( !pWinMemData->hHeap ){
-    DWORD dwInitialSize = SQLITE_WIN32_HEAP_INIT_SIZE;
-    DWORD dwMaximumSize = (DWORD)tdsqlite3GlobalConfig.nHeap;
-    if( dwMaximumSize==0 ){
-      dwMaximumSize = SQLITE_WIN32_HEAP_MAX_SIZE;
-    }else if( dwInitialSize>dwMaximumSize ){
-      dwInitialSize = dwMaximumSize;
-    }
-    pWinMemData->hHeap = osHeapCreate(SQLITE_WIN32_HEAP_FLAGS,
-                                      dwInitialSize, dwMaximumSize);
-    if( !pWinMemData->hHeap ){
-      tdsqlite3_log(SQLITE_NOMEM,
-          "failed to HeapCreate (%lu), flags=%u, initSize=%lu, maxSize=%lu",
-          osGetLastError(), SQLITE_WIN32_HEAP_FLAGS, dwInitialSize,
-          dwMaximumSize);
-      return SQLITE_NOMEM_BKPT;
-    }
-    pWinMemData->bOwned = TRUE;
-    assert( pWinMemData->bOwned );
-  }
-#else
-  pWinMemData->hHeap = osGetProcessHeap();
-  if( !pWinMemData->hHeap ){
-    tdsqlite3_log(SQLITE_NOMEM,
-        "failed to GetProcessHeap (%lu)", osGetLastError());
-    return SQLITE_NOMEM_BKPT;
-  }
-  pWinMemData->bOwned = FALSE;
-  assert( !pWinMemData->bOwned );
-#endif
-  assert( pWinMemData->hHeap!=0 );
-  assert( pWinMemData->hHeap!=INVALID_HANDLE_VALUE );
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_MALLOC_VALIDATE)
-  assert( osHeapValidate(pWinMemData->hHeap, SQLITE_WIN32_HEAP_FLAGS, NULL) );
-#endif
-  return SQLITE_OK;
-}
-
-/*
-** Deinitialize this module.
-*/
-static void winMemShutdown(void *pAppData){
-  winMemData *pWinMemData = (winMemData *)pAppData;
-
-  if( !pWinMemData ) return;
-  assert( pWinMemData->magic1==WINMEM_MAGIC1 );
-  assert( pWinMemData->magic2==WINMEM_MAGIC2 );
-
-  if( pWinMemData->hHeap ){
-    assert( pWinMemData->hHeap!=INVALID_HANDLE_VALUE );
-#if !SQLITE_OS_WINRT && defined(SQLITE_WIN32_MALLOC_VALIDATE)
-    assert( osHeapValidate(pWinMemData->hHeap, SQLITE_WIN32_HEAP_FLAGS, NULL) );
-#endif
-    if( pWinMemData->bOwned ){
-      if( !osHeapDestroy(pWinMemData->hHeap) ){
-        tdsqlite3_log(SQLITE_NOMEM, "failed to HeapDestroy (%lu), heap=%p",
-                    osGetLastError(), (void*)pWinMemData->hHeap);
-      }
-      pWinMemData->bOwned = FALSE;
-    }
-    pWinMemData->hHeap = NULL;
-  }
-}
-
-/*
-** Populate the low-level memory allocation function pointers in
-** tdsqlite3GlobalConfig.m with pointers to the routines in this file. The
-** arguments specify the block of memory to manage.
-**
-** This routine is only called by tdsqlite3_config(), and therefore
-** is not required to be threadsafe (it is not).
-*/
-SQLITE_PRIVATE const tdsqlite3_mem_methods *tdsqlite3MemGetWin32(void){
-  static const tdsqlite3_mem_methods winMemMethods = {
-    winMemMalloc,
-    winMemFree,
-    winMemRealloc,
-    winMemSize,
-    winMemRoundup,
-    winMemInit,
-    winMemShutdown,
-    &win_mem_data
-  };
-  return &winMemMethods;
-}
-
-SQLITE_PRIVATE void tdsqlite3MemSetDefault(void){
-  tdsqlite3_config(SQLITE_CONFIG_MALLOC, tdsqlite3MemGetWin32());
-}
-#endif /* SQLITE_WIN32_MALLOC */
-
-/*
-** Convert a UTF-8 string to Microsoft Unicode.
-**
-** Space to hold the returned string is obtained from tdsqlite3_malloc().
-*/
-static LPWSTR winUtf8ToUnicode(const char *zText){
-  int nChar;
-  LPWSTR zWideText;
-
-  nChar = osMultiByteToWideChar(CP_UTF8, 0, zText, -1, NULL, 0);
-  if( nChar==0 ){
-    return 0;
-  }
-  zWideText = tdsqlite3MallocZero( nChar*sizeof(WCHAR) );
-  if( zWideText==0 ){
-    return 0;
-  }
-  nChar = osMultiByteToWideChar(CP_UTF8, 0, zText, -1, zWideText,
-                                nChar);
-  if( nChar==0 ){
-    tdsqlite3_free(zWideText);
-    zWideText = 0;
-  }
-  return zWideText;
-}
-
-/*
-** Convert a Microsoft Unicode string to UTF-8.
-**
-** Space to hold the returned string is obtained from tdsqlite3_malloc().
-*/
-static char *winUnicodeToUtf8(LPCWSTR zWideText){
-  int nByte;
-  char *zText;
-
-  nByte = osWideCharToMultiByte(CP_UTF8, 0, zWideText, -1, 0, 0, 0, 0);
-  if( nByte == 0 ){
-    return 0;
-  }
-  zText = tdsqlite3MallocZero( nByte );
-  if( zText==0 ){
-    return 0;
-  }
-  nByte = osWideCharToMultiByte(CP_UTF8, 0, zWideText, -1, zText, nByte,
-                                0, 0);
-  if( nByte == 0 ){
-    tdsqlite3_free(zText);
-    zText = 0;
-  }
-  return zText;
-}
-
-/*
-** Convert an ANSI string to Microsoft Unicode, using the ANSI or OEM
-** code page.
-**
-** Space to hold the returned string is obtained from tdsqlite3_malloc().
-*/
-static LPWSTR winMbcsToUnicode(const char *zText, int useAnsi){
-  int nByte;
-  LPWSTR zMbcsText;
-  int codepage = useAnsi ? CP_ACP : CP_OEMCP;
-
-  nByte = osMultiByteToWideChar(codepage, 0, zText, -1, NULL,
-                                0)*sizeof(WCHAR);
-  if( nByte==0 ){
-    return 0;
-  }
-  zMbcsText = tdsqlite3MallocZero( nByte*sizeof(WCHAR) );
-  if( zMbcsText==0 ){
-    return 0;
-  }
-  nByte = osMultiByteToWideChar(codepage, 0, zText, -1, zMbcsText,
-                                nByte);
-  if( nByte==0 ){
-    tdsqlite3_free(zMbcsText);
-    zMbcsText = 0;
-  }
-  return zMbcsText;
-}
-
-/*
-** Convert a Microsoft Unicode string to a multi-byte character string,
-** using the ANSI or OEM code page.
-**
-** Space to hold the returned string is obtained from tdsqlite3_malloc().
-*/
-static char *winUnicodeToMbcs(LPCWSTR zWideText, int useAnsi){
-  int nByte;
-  char *zText;
-  int codepage = useAnsi ? CP_ACP : CP_OEMCP;
-
-  nByte = osWideCharToMultiByte(codepage, 0, zWideText, -1, 0, 0, 0, 0);
-  if( nByte == 0 ){
-    return 0;
-  }
-  zText = tdsqlite3MallocZero( nByte );
-  if( zText==0 ){
-    return 0;
-  }
-  nByte = osWideCharToMultiByte(codepage, 0, zWideText, -1, zText,
-                                nByte, 0, 0);
-  if( nByte == 0 ){
-    tdsqlite3_free(zText);
-    zText = 0;
-  }
-  return zText;
-}
-
-/*
-** Convert a multi-byte character string to UTF-8.
-**
-** Space to hold the returned string is obtained from tdsqlite3_malloc().
-*/
-static char *winMbcsToUtf8(const char *zText, int useAnsi){
-  char *zTextUtf8;
-  LPWSTR zTmpWide;
-
-  zTmpWide = winMbcsToUnicode(zText, useAnsi);
-  if( zTmpWide==0 ){
-    return 0;
-  }
-  zTextUtf8 = winUnicodeToUtf8(zTmpWide);
-  tdsqlite3_free(zTmpWide);
-  return zTextUtf8;
-}
-
-/*
-** Convert a UTF-8 string to a multi-byte character string.
-**
-** Space to hold the returned string is obtained from tdsqlite3_malloc().
-*/
-static char *winUtf8ToMbcs(const char *zText, int useAnsi){
-  char *zTextMbcs;
-  LPWSTR zTmpWide;
-
-  zTmpWide = winUtf8ToUnicode(zText);
-  if( zTmpWide==0 ){
-    return 0;
-  }
-  zTextMbcs = winUnicodeToMbcs(zTmpWide, useAnsi);
-  tdsqlite3_free(zTmpWide);
-  return zTextMbcs;
-}
-
-/*
-** This is a public wrapper for the winUtf8ToUnicode() function.
-*/
-SQLITE_API LPWSTR tdsqlite3_win32_utf8_to_unicode(const char *zText){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !zText ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return winUtf8ToUnicode(zText);
-}
-
-/*
-** This is a public wrapper for the winUnicodeToUtf8() function.
-*/
-SQLITE_API char *tdsqlite3_win32_unicode_to_utf8(LPCWSTR zWideText){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !zWideText ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return winUnicodeToUtf8(zWideText);
-}
-
-/*
-** This is a public wrapper for the winMbcsToUtf8() function.
-*/
-SQLITE_API char *tdsqlite3_win32_mbcs_to_utf8(const char *zText){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !zText ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return winMbcsToUtf8(zText, osAreFileApisANSI());
-}
-
-/*
-** This is a public wrapper for the winMbcsToUtf8() function.
-*/
-SQLITE_API char *tdsqlite3_win32_mbcs_to_utf8_v2(const char *zText, int useAnsi){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !zText ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return winMbcsToUtf8(zText, useAnsi);
-}
-
-/*
-** This is a public wrapper for the winUtf8ToMbcs() function.
-*/
-SQLITE_API char *tdsqlite3_win32_utf8_to_mbcs(const char *zText){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !zText ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return winUtf8ToMbcs(zText, osAreFileApisANSI());
-}
-
-/*
-** This is a public wrapper for the winUtf8ToMbcs() function.
-*/
-SQLITE_API char *tdsqlite3_win32_utf8_to_mbcs_v2(const char *zText, int useAnsi){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !zText ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize() ) return 0;
-#endif
-  return winUtf8ToMbcs(zText, useAnsi);
-}
-
-/*
-** This function is the same as tdsqlite3_win32_set_directory (below); however,
-** it accepts a UTF-8 string.
-*/
-SQLITE_API int tdsqlite3_win32_set_directory8(
-  unsigned long type, /* Identifier for directory being set or reset */
-  const char *zValue  /* New value for directory being set or reset */
-){
-  char **ppDirectory = 0;
-#ifndef SQLITE_OMIT_AUTOINIT
-  int rc = tdsqlite3_initialize();
-  if( rc ) return rc;
-#endif
-  if( type==SQLITE_WIN32_DATA_DIRECTORY_TYPE ){
-    ppDirectory = &tdsqlite3_data_directory;
-  }else if( type==SQLITE_WIN32_TEMP_DIRECTORY_TYPE ){
-    ppDirectory = &tdsqlite3_temp_directory;
-  }
-  assert( !ppDirectory || type==SQLITE_WIN32_DATA_DIRECTORY_TYPE
-          || type==SQLITE_WIN32_TEMP_DIRECTORY_TYPE
-  );
-  assert( !ppDirectory || tdsqlite3MemdebugHasType(*ppDirectory, MEMTYPE_HEAP) );
-  if( ppDirectory ){
-    char *zCopy = 0;
-    if( zValue && zValue[0] ){
-      zCopy = tdsqlite3_mprintf("%s", zValue);
-      if ( zCopy==0 ){
-        return SQLITE_NOMEM_BKPT;
-      }
-    }
-    tdsqlite3_free(*ppDirectory);
-    *ppDirectory = zCopy;
-    return SQLITE_OK;
-  }
-  return SQLITE_ERROR;
-}
-
-/*
-** This function is the same as tdsqlite3_win32_set_directory (below); however,
-** it accepts a UTF-16 string.
-*/
-SQLITE_API int tdsqlite3_win32_set_directory16(
-  unsigned long type, /* Identifier for directory being set or reset */
-  const void *zValue  /* New value for directory being set or reset */
-){
-  int rc;
-  char *zUtf8 = 0;
-  if( zValue ){
-    zUtf8 = tdsqlite3_win32_unicode_to_utf8(zValue);
-    if( zUtf8==0 ) return SQLITE_NOMEM_BKPT;
-  }
-  rc = tdsqlite3_win32_set_directory8(type, zUtf8);
-  if( zUtf8 ) tdsqlite3_free(zUtf8);
-  return rc;
-}
-
-/*
-** This function sets the data directory or the temporary directory based on
-** the provided arguments.  The type argument must be 1 in order to set the
-** data directory or 2 in order to set the temporary directory.  The zValue
-** argument is the name of the directory to use.  The return value will be
-** SQLITE_OK if successful.
-*/
-SQLITE_API int tdsqlite3_win32_set_directory(
-  unsigned long type, /* Identifier for directory being set or reset */
-  void *zValue        /* New value for directory being set or reset */
-){
-  return tdsqlite3_win32_set_directory16(type, zValue);
-}
-
-/*
-** The return value of winGetLastErrorMsg
-** is zero if the error message fits in the buffer, or non-zero
-** otherwise (if the message was truncated).
-*/
-static int winGetLastErrorMsg(DWORD lastErrno, int nBuf, char *zBuf){
-  /* FormatMessage returns 0 on failure.  Otherwise it
-  ** returns the number of TCHARs written to the output
-  ** buffer, excluding the terminating null char.
-  */
-  DWORD dwLen = 0;
-  char *zOut = 0;
-
-  if( osIsNT() ){
-#if SQLITE_OS_WINRT
-    WCHAR zTempWide[SQLITE_WIN32_MAX_ERRMSG_CHARS+1];
-    dwLen = osFormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM |
-                             FORMAT_MESSAGE_IGNORE_INSERTS,
-                             NULL,
-                             lastErrno,
-                             0,
-                             zTempWide,
-                             SQLITE_WIN32_MAX_ERRMSG_CHARS,
-                             0);
-#else
-    LPWSTR zTempWide = NULL;
-    dwLen = osFormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
-                             FORMAT_MESSAGE_FROM_SYSTEM |
-                             FORMAT_MESSAGE_IGNORE_INSERTS,
-                             NULL,
-                             lastErrno,
-                             0,
-                             (LPWSTR) &zTempWide,
-                             0,
-                             0);
-#endif
-    if( dwLen > 0 ){
-      /* allocate a buffer and convert to UTF8 */
-      tdsqlite3BeginBenignMalloc();
-      zOut = winUnicodeToUtf8(zTempWide);
-      tdsqlite3EndBenignMalloc();
-#if !SQLITE_OS_WINRT
-      /* free the system buffer allocated by FormatMessage */
-      osLocalFree(zTempWide);
-#endif
-    }
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    char *zTemp = NULL;
-    dwLen = osFormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER |
-                             FORMAT_MESSAGE_FROM_SYSTEM |
-                             FORMAT_MESSAGE_IGNORE_INSERTS,
-                             NULL,
-                             lastErrno,
-                             0,
-                             (LPSTR) &zTemp,
-                             0,
-                             0);
-    if( dwLen > 0 ){
-      /* allocate a buffer and convert to UTF8 */
-      tdsqlite3BeginBenignMalloc();
-      zOut = winMbcsToUtf8(zTemp, osAreFileApisANSI());
-      tdsqlite3EndBenignMalloc();
-      /* free the system buffer allocated by FormatMessage */
-      osLocalFree(zTemp);
-    }
-  }
-#endif
-  if( 0 == dwLen ){
-    tdsqlite3_snprintf(nBuf, zBuf, "OsError 0x%lx (%lu)", lastErrno, lastErrno);
-  }else{
-    /* copy a maximum of nBuf chars to output buffer */
-    tdsqlite3_snprintf(nBuf, zBuf, "%s", zOut);
-    /* free the UTF8 buffer */
-    tdsqlite3_free(zOut);
-  }
-  return 0;
-}
-
-/*
-**
-** This function - winLogErrorAtLine() - is only ever called via the macro
-** winLogError().
-**
-** This routine is invoked after an error occurs in an OS function.
-** It logs a message using tdsqlite3_log() containing the current value of
-** error code and, if possible, the human-readable equivalent from
-** FormatMessage.
-**
-** The first argument passed to the macro should be the error code that
-** will be returned to SQLite (e.g. SQLITE_IOERR_DELETE, SQLITE_CANTOPEN).
-** The two subsequent arguments should be the name of the OS function that
-** failed and the associated file-system path, if any.
-*/
-#define winLogError(a,b,c,d)   winLogErrorAtLine(a,b,c,d,__LINE__)
-static int winLogErrorAtLine(
-  int errcode,                    /* SQLite error code */
-  DWORD lastErrno,                /* Win32 last error */
-  const char *zFunc,              /* Name of OS function that failed */
-  const char *zPath,              /* File path associated with error */
-  int iLine                       /* Source line number where error occurred */
-){
-  char zMsg[500];                 /* Human readable error text */
-  int i;                          /* Loop counter */
-
-  zMsg[0] = 0;
-  winGetLastErrorMsg(lastErrno, sizeof(zMsg), zMsg);
-  assert( errcode!=SQLITE_OK );
-  if( zPath==0 ) zPath = "";
-  for(i=0; zMsg[i] && zMsg[i]!='\r' && zMsg[i]!='\n'; i++){}
-  zMsg[i] = 0;
-  tdsqlite3_log(errcode,
-      "os_win.c:%d: (%lu) %s(%s) - %s",
-      iLine, lastErrno, zFunc, zPath, zMsg
-  );
-
-  return errcode;
-}
-
-/*
-** The number of times that a ReadFile(), WriteFile(), and DeleteFile()
-** will be retried following a locking error - probably caused by
-** antivirus software.  Also the initial delay before the first retry.
-** The delay increases linearly with each retry.
-*/
-#ifndef SQLITE_WIN32_IOERR_RETRY
-# define SQLITE_WIN32_IOERR_RETRY 10
-#endif
-#ifndef SQLITE_WIN32_IOERR_RETRY_DELAY
-# define SQLITE_WIN32_IOERR_RETRY_DELAY 25
-#endif
-static int winIoerrRetry = SQLITE_WIN32_IOERR_RETRY;
-static int winIoerrRetryDelay = SQLITE_WIN32_IOERR_RETRY_DELAY;
-
-/*
-** The "winIoerrCanRetry1" macro is used to determine if a particular I/O
-** error code obtained via GetLastError() is eligible to be retried.  It
-** must accept the error code DWORD as its only argument and should return
-** non-zero if the error code is transient in nature and the operation
-** responsible for generating the original error might succeed upon being
-** retried.  The argument to this macro should be a variable.
-**
-** Additionally, a macro named "winIoerrCanRetry2" may be defined.  If it
-** is defined, it will be consulted only when the macro "winIoerrCanRetry1"
-** returns zero.  The "winIoerrCanRetry2" macro is completely optional and
-** may be used to include additional error codes in the set that should
-** result in the failing I/O operation being retried by the caller.  If
-** defined, the "winIoerrCanRetry2" macro must exhibit external semantics
-** identical to those of the "winIoerrCanRetry1" macro.
-*/
-#if !defined(winIoerrCanRetry1)
-#define winIoerrCanRetry1(a) (((a)==ERROR_ACCESS_DENIED)        || \
-                              ((a)==ERROR_SHARING_VIOLATION)    || \
-                              ((a)==ERROR_LOCK_VIOLATION)       || \
-                              ((a)==ERROR_DEV_NOT_EXIST)        || \
-                              ((a)==ERROR_NETNAME_DELETED)      || \
-                              ((a)==ERROR_SEM_TIMEOUT)          || \
-                              ((a)==ERROR_NETWORK_UNREACHABLE))
-#endif
-
-/*
-** If a ReadFile() or WriteFile() error occurs, invoke this routine
-** to see if it should be retried.  Return TRUE to retry.  Return FALSE
-** to give up with an error.
-*/
-static int winRetryIoerr(int *pnRetry, DWORD *pError){
-  DWORD e = osGetLastError();
-  if( *pnRetry>=winIoerrRetry ){
-    if( pError ){
-      *pError = e;
-    }
-    return 0;
-  }
-  if( winIoerrCanRetry1(e) ){
-    tdsqlite3_win32_sleep(winIoerrRetryDelay*(1+*pnRetry));
-    ++*pnRetry;
-    return 1;
-  }
-#if defined(winIoerrCanRetry2)
-  else if( winIoerrCanRetry2(e) ){
-    tdsqlite3_win32_sleep(winIoerrRetryDelay*(1+*pnRetry));
-    ++*pnRetry;
-    return 1;
-  }
-#endif
-  if( pError ){
-    *pError = e;
-  }
-  return 0;
-}
-
-/*
-** Log a I/O error retry episode.
-*/
-static void winLogIoerr(int nRetry, int lineno){
-  if( nRetry ){
-    tdsqlite3_log(SQLITE_NOTICE,
-      "delayed %dms for lock/sharing conflict at line %d",
-      winIoerrRetryDelay*nRetry*(nRetry+1)/2, lineno
-    );
-  }
-}
-
-/*
-** This #if does not rely on the SQLITE_OS_WINCE define because the
-** corresponding section in "date.c" cannot use it.
-*/
-#if !defined(SQLITE_OMIT_LOCALTIME) && defined(_WIN32_WCE) && \
-    (!defined(SQLITE_MSVC_LOCALTIME_API) || !SQLITE_MSVC_LOCALTIME_API)
-/*
-** The MSVC CRT on Windows CE may not have a localtime() function.
-** So define a substitute.
-*/
-/* #  include <time.h> */
-struct tm *__cdecl localtime(const time_t *t)
-{
-  static struct tm y;
-  FILETIME uTm, lTm;
-  SYSTEMTIME pTm;
-  tdsqlite3_int64 t64;
-  t64 = *t;
-  t64 = (t64 + 11644473600)*10000000;
-  uTm.dwLowDateTime = (DWORD)(t64 & 0xFFFFFFFF);
-  uTm.dwHighDateTime= (DWORD)(t64 >> 32);
-  osFileTimeToLocalFileTime(&uTm,&lTm);
-  osFileTimeToSystemTime(&lTm,&pTm);
-  y.tm_year = pTm.wYear - 1900;
-  y.tm_mon = pTm.wMonth - 1;
-  y.tm_wday = pTm.wDayOfWeek;
-  y.tm_mday = pTm.wDay;
-  y.tm_hour = pTm.wHour;
-  y.tm_min = pTm.wMinute;
-  y.tm_sec = pTm.wSecond;
-  return &y;
-}
-#endif
-
-#if SQLITE_OS_WINCE
-/*************************************************************************
-** This section contains code for WinCE only.
-*/
-#define HANDLE_TO_WINFILE(a) (winFile*)&((char*)a)[-(int)offsetof(winFile,h)]
-
-/*
-** Acquire a lock on the handle h
-*/
-static void winceMutexAcquire(HANDLE h){
-   DWORD dwErr;
-   do {
-     dwErr = osWaitForSingleObject(h, INFINITE);
-   } while (dwErr != WAIT_OBJECT_0 && dwErr != WAIT_ABANDONED);
-}
-/*
-** Release a lock acquired by winceMutexAcquire()
-*/
-#define winceMutexRelease(h) ReleaseMutex(h)
-
-/*
-** Create the mutex and shared memory used for locking in the file
-** descriptor pFile
-*/
-static int winceCreateLock(const char *zFilename, winFile *pFile){
-  LPWSTR zTok;
-  LPWSTR zName;
-  DWORD lastErrno;
-  BOOL bLogged = FALSE;
-  BOOL bInit = TRUE;
-
-  zName = winUtf8ToUnicode(zFilename);
-  if( zName==0 ){
-    /* out of memory */
-    return SQLITE_IOERR_NOMEM_BKPT;
-  }
-
-  /* Initialize the local lockdata */
-  memset(&pFile->local, 0, sizeof(pFile->local));
-
-  /* Replace the backslashes from the filename and lowercase it
-  ** to derive a mutex name. */
-  zTok = osCharLowerW(zName);
-  for (;*zTok;zTok++){
-    if (*zTok == '\\') *zTok = '_';
-  }
-
-  /* Create/open the named mutex */
-  pFile->hMutex = osCreateMutexW(NULL, FALSE, zName);
-  if (!pFile->hMutex){
-    pFile->lastErrno = osGetLastError();
-    tdsqlite3_free(zName);
-    return winLogError(SQLITE_IOERR, pFile->lastErrno,
-                       "winceCreateLock1", zFilename);
-  }
-
-  /* Acquire the mutex before continuing */
-  winceMutexAcquire(pFile->hMutex);
-
-  /* Since the names of named mutexes, semaphores, file mappings etc are
-  ** case-sensitive, take advantage of that by uppercasing the mutex name
-  ** and using that as the shared filemapping name.
-  */
-  osCharUpperW(zName);
-  pFile->hShared = osCreateFileMappingW(INVALID_HANDLE_VALUE, NULL,
-                                        PAGE_READWRITE, 0, sizeof(winceLock),
-                                        zName);
-
-  /* Set a flag that indicates we're the first to create the memory so it
-  ** must be zero-initialized */
-  lastErrno = osGetLastError();
-  if (lastErrno == ERROR_ALREADY_EXISTS){
-    bInit = FALSE;
-  }
-
-  tdsqlite3_free(zName);
-
-  /* If we succeeded in making the shared memory handle, map it. */
-  if( pFile->hShared ){
-    pFile->shared = (winceLock*)osMapViewOfFile(pFile->hShared,
-             FILE_MAP_READ|FILE_MAP_WRITE, 0, 0, sizeof(winceLock));
-    /* If mapping failed, close the shared memory handle and erase it */
-    if( !pFile->shared ){
-      pFile->lastErrno = osGetLastError();
-      winLogError(SQLITE_IOERR, pFile->lastErrno,
-                  "winceCreateLock2", zFilename);
-      bLogged = TRUE;
-      osCloseHandle(pFile->hShared);
-      pFile->hShared = NULL;
-    }
-  }
-
-  /* If shared memory could not be created, then close the mutex and fail */
-  if( pFile->hShared==NULL ){
-    if( !bLogged ){
-      pFile->lastErrno = lastErrno;
-      winLogError(SQLITE_IOERR, pFile->lastErrno,
-                  "winceCreateLock3", zFilename);
-      bLogged = TRUE;
-    }
-    winceMutexRelease(pFile->hMutex);
-    osCloseHandle(pFile->hMutex);
-    pFile->hMutex = NULL;
-    return SQLITE_IOERR;
-  }
-
-  /* Initialize the shared memory if we're supposed to */
-  if( bInit ){
-    memset(pFile->shared, 0, sizeof(winceLock));
-  }
-
-  winceMutexRelease(pFile->hMutex);
-  return SQLITE_OK;
-}
-
-/*
-** Destroy the part of winFile that deals with wince locks
-*/
-static void winceDestroyLock(winFile *pFile){
-  if (pFile->hMutex){
-    /* Acquire the mutex */
-    winceMutexAcquire(pFile->hMutex);
-
-    /* The following blocks should probably assert in debug mode, but they
-       are to cleanup in case any locks remained open */
-    if (pFile->local.nReaders){
-      pFile->shared->nReaders --;
-    }
-    if (pFile->local.bReserved){
-      pFile->shared->bReserved = FALSE;
-    }
-    if (pFile->local.bPending){
-      pFile->shared->bPending = FALSE;
-    }
-    if (pFile->local.bExclusive){
-      pFile->shared->bExclusive = FALSE;
-    }
-
-    /* De-reference and close our copy of the shared memory handle */
-    osUnmapViewOfFile(pFile->shared);
-    osCloseHandle(pFile->hShared);
-
-    /* Done with the mutex */
-    winceMutexRelease(pFile->hMutex);
-    osCloseHandle(pFile->hMutex);
-    pFile->hMutex = NULL;
-  }
-}
-
-/*
-** An implementation of the LockFile() API of Windows for CE
-*/
-static BOOL winceLockFile(
-  LPHANDLE phFile,
-  DWORD dwFileOffsetLow,
-  DWORD dwFileOffsetHigh,
-  DWORD nNumberOfBytesToLockLow,
-  DWORD nNumberOfBytesToLockHigh
-){
-  winFile *pFile = HANDLE_TO_WINFILE(phFile);
-  BOOL bReturn = FALSE;
-
-  UNUSED_PARAMETER(dwFileOffsetHigh);
-  UNUSED_PARAMETER(nNumberOfBytesToLockHigh);
-
-  if (!pFile->hMutex) return TRUE;
-  winceMutexAcquire(pFile->hMutex);
-
-  /* Wanting an exclusive lock? */
-  if (dwFileOffsetLow == (DWORD)SHARED_FIRST
-       && nNumberOfBytesToLockLow == (DWORD)SHARED_SIZE){
-    if (pFile->shared->nReaders == 0 && pFile->shared->bExclusive == 0){
-       pFile->shared->bExclusive = TRUE;
-       pFile->local.bExclusive = TRUE;
-       bReturn = TRUE;
-    }
-  }
-
-  /* Want a read-only lock? */
-  else if (dwFileOffsetLow == (DWORD)SHARED_FIRST &&
-           nNumberOfBytesToLockLow == 1){
-    if (pFile->shared->bExclusive == 0){
-      pFile->local.nReaders ++;
-      if (pFile->local.nReaders == 1){
-        pFile->shared->nReaders ++;
-      }
-      bReturn = TRUE;
-    }
-  }
-
-  /* Want a pending lock? */
-  else if (dwFileOffsetLow == (DWORD)PENDING_BYTE
-           && nNumberOfBytesToLockLow == 1){
-    /* If no pending lock has been acquired, then acquire it */
-    if (pFile->shared->bPending == 0) {
-      pFile->shared->bPending = TRUE;
-      pFile->local.bPending = TRUE;
-      bReturn = TRUE;
-    }
-  }
-
-  /* Want a reserved lock? */
-  else if (dwFileOffsetLow == (DWORD)RESERVED_BYTE
-           && nNumberOfBytesToLockLow == 1){
-    if (pFile->shared->bReserved == 0) {
-      pFile->shared->bReserved = TRUE;
-      pFile->local.bReserved = TRUE;
-      bReturn = TRUE;
-    }
-  }
-
-  winceMutexRelease(pFile->hMutex);
-  return bReturn;
-}
-
-/*
-** An implementation of the UnlockFile API of Windows for CE
-*/
-static BOOL winceUnlockFile(
-  LPHANDLE phFile,
-  DWORD dwFileOffsetLow,
-  DWORD dwFileOffsetHigh,
-  DWORD nNumberOfBytesToUnlockLow,
-  DWORD nNumberOfBytesToUnlockHigh
-){
-  winFile *pFile = HANDLE_TO_WINFILE(phFile);
-  BOOL bReturn = FALSE;
-
-  UNUSED_PARAMETER(dwFileOffsetHigh);
-  UNUSED_PARAMETER(nNumberOfBytesToUnlockHigh);
-
-  if (!pFile->hMutex) return TRUE;
-  winceMutexAcquire(pFile->hMutex);
-
-  /* Releasing a reader lock or an exclusive lock */
-  if (dwFileOffsetLow == (DWORD)SHARED_FIRST){
-    /* Did we have an exclusive lock? */
-    if (pFile->local.bExclusive){
-      assert(nNumberOfBytesToUnlockLow == (DWORD)SHARED_SIZE);
-      pFile->local.bExclusive = FALSE;
-      pFile->shared->bExclusive = FALSE;
-      bReturn = TRUE;
-    }
-
-    /* Did we just have a reader lock? */
-    else if (pFile->local.nReaders){
-      assert(nNumberOfBytesToUnlockLow == (DWORD)SHARED_SIZE
-             || nNumberOfBytesToUnlockLow == 1);
-      pFile->local.nReaders --;
-      if (pFile->local.nReaders == 0)
-      {
-        pFile->shared->nReaders --;
-      }
-      bReturn = TRUE;
-    }
-  }
-
-  /* Releasing a pending lock */
-  else if (dwFileOffsetLow == (DWORD)PENDING_BYTE
-           && nNumberOfBytesToUnlockLow == 1){
-    if (pFile->local.bPending){
-      pFile->local.bPending = FALSE;
-      pFile->shared->bPending = FALSE;
-      bReturn = TRUE;
-    }
-  }
-  /* Releasing a reserved lock */
-  else if (dwFileOffsetLow == (DWORD)RESERVED_BYTE
-           && nNumberOfBytesToUnlockLow == 1){
-    if (pFile->local.bReserved) {
-      pFile->local.bReserved = FALSE;
-      pFile->shared->bReserved = FALSE;
-      bReturn = TRUE;
-    }
-  }
-
-  winceMutexRelease(pFile->hMutex);
-  return bReturn;
-}
-/*
-** End of the special code for wince
-*****************************************************************************/
-#endif /* SQLITE_OS_WINCE */
-
-/*
-** Lock a file region.
-*/
-static BOOL winLockFile(
-  LPHANDLE phFile,
-  DWORD flags,
-  DWORD offsetLow,
-  DWORD offsetHigh,
-  DWORD numBytesLow,
-  DWORD numBytesHigh
-){
-#if SQLITE_OS_WINCE
-  /*
-  ** NOTE: Windows CE is handled differently here due its lack of the Win32
-  **       API LockFile.
-  */
-  return winceLockFile(phFile, offsetLow, offsetHigh,
-                       numBytesLow, numBytesHigh);
-#else
-  if( osIsNT() ){
-    OVERLAPPED ovlp;
-    memset(&ovlp, 0, sizeof(OVERLAPPED));
-    ovlp.Offset = offsetLow;
-    ovlp.OffsetHigh = offsetHigh;
-    return osLockFileEx(*phFile, flags, 0, numBytesLow, numBytesHigh, &ovlp);
-  }else{
-    return osLockFile(*phFile, offsetLow, offsetHigh, numBytesLow,
-                      numBytesHigh);
-  }
-#endif
-}
-
-/*
-** Unlock a file region.
- */
-static BOOL winUnlockFile(
-  LPHANDLE phFile,
-  DWORD offsetLow,
-  DWORD offsetHigh,
-  DWORD numBytesLow,
-  DWORD numBytesHigh
-){
-#if SQLITE_OS_WINCE
-  /*
-  ** NOTE: Windows CE is handled differently here due its lack of the Win32
-  **       API UnlockFile.
-  */
-  return winceUnlockFile(phFile, offsetLow, offsetHigh,
-                         numBytesLow, numBytesHigh);
-#else
-  if( osIsNT() ){
-    OVERLAPPED ovlp;
-    memset(&ovlp, 0, sizeof(OVERLAPPED));
-    ovlp.Offset = offsetLow;
-    ovlp.OffsetHigh = offsetHigh;
-    return osUnlockFileEx(*phFile, 0, numBytesLow, numBytesHigh, &ovlp);
-  }else{
-    return osUnlockFile(*phFile, offsetLow, offsetHigh, numBytesLow,
-                        numBytesHigh);
-  }
-#endif
-}
-
-/*****************************************************************************
-** The next group of routines implement the I/O methods specified
-** by the tdsqlite3_io_methods object.
-******************************************************************************/
-
-/*
-** Some Microsoft compilers lack this definition.
-*/
-#ifndef INVALID_SET_FILE_POINTER
-# define INVALID_SET_FILE_POINTER ((DWORD)-1)
-#endif
-
-/*
-** Move the current position of the file handle passed as the first
-** argument to offset iOffset within the file. If successful, return 0.
-** Otherwise, set pFile->lastErrno and return non-zero.
-*/
-static int winSeekFile(winFile *pFile, tdsqlite3_int64 iOffset){
-#if !SQLITE_OS_WINRT
-  LONG upperBits;                 /* Most sig. 32 bits of new offset */
-  LONG lowerBits;                 /* Least sig. 32 bits of new offset */
-  DWORD dwRet;                    /* Value returned by SetFilePointer() */
-  DWORD lastErrno;                /* Value returned by GetLastError() */
-
-  OSTRACE(("SEEK file=%p, offset=%lld\n", pFile->h, iOffset));
-
-  upperBits = (LONG)((iOffset>>32) & 0x7fffffff);
-  lowerBits = (LONG)(iOffset & 0xffffffff);
-
-  /* API oddity: If successful, SetFilePointer() returns a dword
-  ** containing the lower 32-bits of the new file-offset. Or, if it fails,
-  ** it returns INVALID_SET_FILE_POINTER. However according to MSDN,
-  ** INVALID_SET_FILE_POINTER may also be a valid new offset. So to determine
-  ** whether an error has actually occurred, it is also necessary to call
-  ** GetLastError().
-  */
-  dwRet = osSetFilePointer(pFile->h, lowerBits, &upperBits, FILE_BEGIN);
-
-  if( (dwRet==INVALID_SET_FILE_POINTER
-      && ((lastErrno = osGetLastError())!=NO_ERROR)) ){
-    pFile->lastErrno = lastErrno;
-    winLogError(SQLITE_IOERR_SEEK, pFile->lastErrno,
-                "winSeekFile", pFile->zPath);
-    OSTRACE(("SEEK file=%p, rc=SQLITE_IOERR_SEEK\n", pFile->h));
-    return 1;
-  }
-
-  OSTRACE(("SEEK file=%p, rc=SQLITE_OK\n", pFile->h));
-  return 0;
-#else
-  /*
-  ** Same as above, except that this implementation works for WinRT.
-  */
-
-  LARGE_INTEGER x;                /* The new offset */
-  BOOL bRet;                      /* Value returned by SetFilePointerEx() */
-
-  x.QuadPart = iOffset;
-  bRet = osSetFilePointerEx(pFile->h, x, 0, FILE_BEGIN);
-
-  if(!bRet){
-    pFile->lastErrno = osGetLastError();
-    winLogError(SQLITE_IOERR_SEEK, pFile->lastErrno,
-                "winSeekFile", pFile->zPath);
-    OSTRACE(("SEEK file=%p, rc=SQLITE_IOERR_SEEK\n", pFile->h));
-    return 1;
-  }
-
-  OSTRACE(("SEEK file=%p, rc=SQLITE_OK\n", pFile->h));
-  return 0;
-#endif
-}
-
-#if SQLITE_MAX_MMAP_SIZE>0
-/* Forward references to VFS helper methods used for memory mapped files */
-static int winMapfile(winFile*, tdsqlite3_int64);
-static int winUnmapfile(winFile*);
-#endif
-
-/*
-** Close a file.
-**
-** It is reported that an attempt to close a handle might sometimes
-** fail.  This is a very unreasonable result, but Windows is notorious
-** for being unreasonable so I do not doubt that it might happen.  If
-** the close fails, we pause for 100 milliseconds and try again.  As
-** many as MX_CLOSE_ATTEMPT attempts to close the handle are made before
-** giving up and returning an error.
-*/
-#define MX_CLOSE_ATTEMPT 3
-static int winClose(tdsqlite3_file *id){
-  int rc, cnt = 0;
-  winFile *pFile = (winFile*)id;
-
-  assert( id!=0 );
-#ifndef SQLITE_OMIT_WAL
-  assert( pFile->pShm==0 );
-#endif
-  assert( pFile->h!=NULL && pFile->h!=INVALID_HANDLE_VALUE );
-  OSTRACE(("CLOSE pid=%lu, pFile=%p, file=%p\n",
-           osGetCurrentProcessId(), pFile, pFile->h));
-
-#if SQLITE_MAX_MMAP_SIZE>0
-  winUnmapfile(pFile);
-#endif
-
-  do{
-    rc = osCloseHandle(pFile->h);
-    /* SimulateIOError( rc=0; cnt=MX_CLOSE_ATTEMPT; ); */
-  }while( rc==0 && ++cnt < MX_CLOSE_ATTEMPT && (tdsqlite3_win32_sleep(100), 1) );
-#if SQLITE_OS_WINCE
-#define WINCE_DELETION_ATTEMPTS 3
-  {
-    winVfsAppData *pAppData = (winVfsAppData*)pFile->pVfs->pAppData;
-    if( pAppData==NULL || !pAppData->bNoLock ){
-      winceDestroyLock(pFile);
-    }
-  }
-  if( pFile->zDeleteOnClose ){
-    int cnt = 0;
-    while(
-           osDeleteFileW(pFile->zDeleteOnClose)==0
-        && osGetFileAttributesW(pFile->zDeleteOnClose)!=0xffffffff
-        && cnt++ < WINCE_DELETION_ATTEMPTS
-    ){
-       tdsqlite3_win32_sleep(100);  /* Wait a little before trying again */
-    }
-    tdsqlite3_free(pFile->zDeleteOnClose);
-  }
-#endif
-  if( rc ){
-    pFile->h = NULL;
-  }
-  OpenCounter(-1);
-  OSTRACE(("CLOSE pid=%lu, pFile=%p, file=%p, rc=%s\n",
-           osGetCurrentProcessId(), pFile, pFile->h, rc ? "ok" : "failed"));
-  return rc ? SQLITE_OK
-            : winLogError(SQLITE_IOERR_CLOSE, osGetLastError(),
-                          "winClose", pFile->zPath);
-}
-
-/*
-** Read data from a file into a buffer.  Return SQLITE_OK if all
-** bytes were read successfully and SQLITE_IOERR if anything goes
-** wrong.
-*/
-static int winRead(
-  tdsqlite3_file *id,          /* File to read from */
-  void *pBuf,                /* Write content into this buffer */
-  int amt,                   /* Number of bytes to read */
-  tdsqlite3_int64 offset       /* Begin reading at this offset */
-){
-#if !SQLITE_OS_WINCE && !defined(SQLITE_WIN32_NO_OVERLAPPED)
-  OVERLAPPED overlapped;          /* The offset for ReadFile. */
-#endif
-  winFile *pFile = (winFile*)id;  /* file handle */
-  DWORD nRead;                    /* Number of bytes actually read from file */
-  int nRetry = 0;                 /* Number of retrys */
-
-  assert( id!=0 );
-  assert( amt>0 );
-  assert( offset>=0 );
-  SimulateIOError(return SQLITE_IOERR_READ);
-  OSTRACE(("READ pid=%lu, pFile=%p, file=%p, buffer=%p, amount=%d, "
-           "offset=%lld, lock=%d\n", osGetCurrentProcessId(), pFile,
-           pFile->h, pBuf, amt, offset, pFile->locktype));
-
-#if SQLITE_MAX_MMAP_SIZE>0
-  /* Deal with as much of this read request as possible by transfering
-  ** data from the memory mapping using memcpy().  */
-  if( offset<pFile->mmapSize ){
-    if( offset+amt <= pFile->mmapSize ){
-      memcpy(pBuf, &((u8 *)(pFile->pMapRegion))[offset], amt);
-      OSTRACE(("READ-MMAP pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n",
-               osGetCurrentProcessId(), pFile, pFile->h));
-      return SQLITE_OK;
-    }else{
-      int nCopy = (int)(pFile->mmapSize - offset);
-      memcpy(pBuf, &((u8 *)(pFile->pMapRegion))[offset], nCopy);
-      pBuf = &((u8 *)pBuf)[nCopy];
-      amt -= nCopy;
-      offset += nCopy;
-    }
-  }
-#endif
-
-#if SQLITE_OS_WINCE || defined(SQLITE_WIN32_NO_OVERLAPPED)
-  if( winSeekFile(pFile, offset) ){
-    OSTRACE(("READ pid=%lu, pFile=%p, file=%p, rc=SQLITE_FULL\n",
-             osGetCurrentProcessId(), pFile, pFile->h));
-    return SQLITE_FULL;
-  }
-  while( !osReadFile(pFile->h, pBuf, amt, &nRead, 0) ){
-#else
-  memset(&overlapped, 0, sizeof(OVERLAPPED));
-  overlapped.Offset = (LONG)(offset & 0xffffffff);
-  overlapped.OffsetHigh = (LONG)((offset>>32) & 0x7fffffff);
-  while( !osReadFile(pFile->h, pBuf, amt, &nRead, &overlapped) &&
-         osGetLastError()!=ERROR_HANDLE_EOF ){
-#endif
-    DWORD lastErrno;
-    if( winRetryIoerr(&nRetry, &lastErrno) ) continue;
-    pFile->lastErrno = lastErrno;
-    OSTRACE(("READ pid=%lu, pFile=%p, file=%p, rc=SQLITE_IOERR_READ\n",
-             osGetCurrentProcessId(), pFile, pFile->h));
-    return winLogError(SQLITE_IOERR_READ, pFile->lastErrno,
-                       "winRead", pFile->zPath);
-  }
-  winLogIoerr(nRetry, __LINE__);
-  if( nRead<(DWORD)amt ){
-    /* Unread parts of the buffer must be zero-filled */
-    memset(&((char*)pBuf)[nRead], 0, amt-nRead);
-    OSTRACE(("READ pid=%lu, pFile=%p, file=%p, rc=SQLITE_IOERR_SHORT_READ\n",
-             osGetCurrentProcessId(), pFile, pFile->h));
-    return SQLITE_IOERR_SHORT_READ;
-  }
-
-  OSTRACE(("READ pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n",
-           osGetCurrentProcessId(), pFile, pFile->h));
-  return SQLITE_OK;
-}
-
-/*
-** Write data from a buffer into a file.  Return SQLITE_OK on success
-** or some other error code on failure.
-*/
-static int winWrite(
-  tdsqlite3_file *id,               /* File to write into */
-  const void *pBuf,               /* The bytes to be written */
-  int amt,                        /* Number of bytes to write */
-  tdsqlite3_int64 offset            /* Offset into the file to begin writing at */
-){
-  int rc = 0;                     /* True if error has occurred, else false */
-  winFile *pFile = (winFile*)id;  /* File handle */
-  int nRetry = 0;                 /* Number of retries */
-
-  assert( amt>0 );
-  assert( pFile );
-  SimulateIOError(return SQLITE_IOERR_WRITE);
-  SimulateDiskfullError(return SQLITE_FULL);
-
-  OSTRACE(("WRITE pid=%lu, pFile=%p, file=%p, buffer=%p, amount=%d, "
-           "offset=%lld, lock=%d\n", osGetCurrentProcessId(), pFile,
-           pFile->h, pBuf, amt, offset, pFile->locktype));
-
-#if defined(SQLITE_MMAP_READWRITE) && SQLITE_MAX_MMAP_SIZE>0
-  /* Deal with as much of this write request as possible by transfering
-  ** data from the memory mapping using memcpy().  */
-  if( offset<pFile->mmapSize ){
-    if( offset+amt <= pFile->mmapSize ){
-      memcpy(&((u8 *)(pFile->pMapRegion))[offset], pBuf, amt);
-      OSTRACE(("WRITE-MMAP pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n",
-               osGetCurrentProcessId(), pFile, pFile->h));
-      return SQLITE_OK;
-    }else{
-      int nCopy = (int)(pFile->mmapSize - offset);
-      memcpy(&((u8 *)(pFile->pMapRegion))[offset], pBuf, nCopy);
-      pBuf = &((u8 *)pBuf)[nCopy];
-      amt -= nCopy;
-      offset += nCopy;
-    }
-  }
-#endif
-
-#if SQLITE_OS_WINCE || defined(SQLITE_WIN32_NO_OVERLAPPED)
-  rc = winSeekFile(pFile, offset);
-  if( rc==0 ){
-#else
-  {
-#endif
-#if !SQLITE_OS_WINCE && !defined(SQLITE_WIN32_NO_OVERLAPPED)
-    OVERLAPPED overlapped;        /* The offset for WriteFile. */
-#endif
-    u8 *aRem = (u8 *)pBuf;        /* Data yet to be written */
-    int nRem = amt;               /* Number of bytes yet to be written */
-    DWORD nWrite;                 /* Bytes written by each WriteFile() call */
-    DWORD lastErrno = NO_ERROR;   /* Value returned by GetLastError() */
-
-#if !SQLITE_OS_WINCE && !defined(SQLITE_WIN32_NO_OVERLAPPED)
-    memset(&overlapped, 0, sizeof(OVERLAPPED));
-    overlapped.Offset = (LONG)(offset & 0xffffffff);
-    overlapped.OffsetHigh = (LONG)((offset>>32) & 0x7fffffff);
-#endif
-
-    while( nRem>0 ){
-#if SQLITE_OS_WINCE || defined(SQLITE_WIN32_NO_OVERLAPPED)
-      if( !osWriteFile(pFile->h, aRem, nRem, &nWrite, 0) ){
-#else
-      if( !osWriteFile(pFile->h, aRem, nRem, &nWrite, &overlapped) ){
-#endif
-        if( winRetryIoerr(&nRetry, &lastErrno) ) continue;
-        break;
-      }
-      assert( nWrite==0 || nWrite<=(DWORD)nRem );
-      if( nWrite==0 || nWrite>(DWORD)nRem ){
-        lastErrno = osGetLastError();
-        break;
-      }
-#if !SQLITE_OS_WINCE && !defined(SQLITE_WIN32_NO_OVERLAPPED)
-      offset += nWrite;
-      overlapped.Offset = (LONG)(offset & 0xffffffff);
-      overlapped.OffsetHigh = (LONG)((offset>>32) & 0x7fffffff);
-#endif
-      aRem += nWrite;
-      nRem -= nWrite;
-    }
-    if( nRem>0 ){
-      pFile->lastErrno = lastErrno;
-      rc = 1;
-    }
-  }
-
-  if( rc ){
-    if(   ( pFile->lastErrno==ERROR_HANDLE_DISK_FULL )
-       || ( pFile->lastErrno==ERROR_DISK_FULL )){
-      OSTRACE(("WRITE pid=%lu, pFile=%p, file=%p, rc=SQLITE_FULL\n",
-               osGetCurrentProcessId(), pFile, pFile->h));
-      return winLogError(SQLITE_FULL, pFile->lastErrno,
-                         "winWrite1", pFile->zPath);
-    }
-    OSTRACE(("WRITE pid=%lu, pFile=%p, file=%p, rc=SQLITE_IOERR_WRITE\n",
-             osGetCurrentProcessId(), pFile, pFile->h));
-    return winLogError(SQLITE_IOERR_WRITE, pFile->lastErrno,
-                       "winWrite2", pFile->zPath);
-  }else{
-    winLogIoerr(nRetry, __LINE__);
-  }
-  OSTRACE(("WRITE pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n",
-           osGetCurrentProcessId(), pFile, pFile->h));
-  return SQLITE_OK;
-}
-
-/*
-** Truncate an open file to a specified size
-*/
-static int winTruncate(tdsqlite3_file *id, tdsqlite3_int64 nByte){
-  winFile *pFile = (winFile*)id;  /* File handle object */
-  int rc = SQLITE_OK;             /* Return code for this function */
-  DWORD lastErrno;
-#if SQLITE_MAX_MMAP_SIZE>0
-  tdsqlite3_int64 oldMmapSize;
-  if( pFile->nFetchOut>0 ){
-    /* File truncation is a no-op if there are outstanding memory mapped
-    ** pages.  This is because truncating the file means temporarily unmapping
-    ** the file, and that might delete memory out from under existing cursors.
-    **
-    ** This can result in incremental vacuum not truncating the file,
-    ** if there is an active read cursor when the incremental vacuum occurs.
-    ** No real harm comes of this - the database file is not corrupted,
-    ** though some folks might complain that the file is bigger than it
-    ** needs to be.
-    **
-    ** The only feasible work-around is to defer the truncation until after
-    ** all references to memory-mapped content are closed.  That is doable,
-    ** but involves adding a few branches in the common write code path which
-    ** could slow down normal operations slightly.  Hence, we have decided for
-    ** now to simply make trancations a no-op if there are pending reads.  We
-    ** can maybe revisit this decision in the future.
-    */
-    return SQLITE_OK;
-  }
-#endif
-
-  assert( pFile );
-  SimulateIOError(return SQLITE_IOERR_TRUNCATE);
-  OSTRACE(("TRUNCATE pid=%lu, pFile=%p, file=%p, size=%lld, lock=%d\n",
-           osGetCurrentProcessId(), pFile, pFile->h, nByte, pFile->locktype));
-
-  /* If the user has configured a chunk-size for this file, truncate the
-  ** file so that it consists of an integer number of chunks (i.e. the
-  ** actual file size after the operation may be larger than the requested
-  ** size).
-  */
-  if( pFile->szChunk>0 ){
-    nByte = ((nByte + pFile->szChunk - 1)/pFile->szChunk) * pFile->szChunk;
-  }
-
-#if SQLITE_MAX_MMAP_SIZE>0
-  if( pFile->pMapRegion ){
-    oldMmapSize = pFile->mmapSize;
-  }else{
-    oldMmapSize = 0;
-  }
-  winUnmapfile(pFile);
-#endif
-
-  /* SetEndOfFile() returns non-zero when successful, or zero when it fails. */
-  if( winSeekFile(pFile, nByte) ){
-    rc = winLogError(SQLITE_IOERR_TRUNCATE, pFile->lastErrno,
-                     "winTruncate1", pFile->zPath);
-  }else if( 0==osSetEndOfFile(pFile->h) &&
-            ((lastErrno = osGetLastError())!=ERROR_USER_MAPPED_FILE) ){
-    pFile->lastErrno = lastErrno;
-    rc = winLogError(SQLITE_IOERR_TRUNCATE, pFile->lastErrno,
-                     "winTruncate2", pFile->zPath);
-  }
-
-#if SQLITE_MAX_MMAP_SIZE>0
-  if( rc==SQLITE_OK && oldMmapSize>0 ){
-    if( oldMmapSize>nByte ){
-      winMapfile(pFile, -1);
-    }else{
-      winMapfile(pFile, oldMmapSize);
-    }
-  }
-#endif
-
-  OSTRACE(("TRUNCATE pid=%lu, pFile=%p, file=%p, rc=%s\n",
-           osGetCurrentProcessId(), pFile, pFile->h, tdsqlite3ErrName(rc)));
-  return rc;
-}
-
-#ifdef SQLITE_TEST
-/*
-** Count the number of fullsyncs and normal syncs.  This is used to test
-** that syncs and fullsyncs are occuring at the right times.
-*/
-SQLITE_API int tdsqlite3_sync_count = 0;
-SQLITE_API int tdsqlite3_fullsync_count = 0;
-#endif
-
-/*
-** Make sure all writes to a particular file are committed to disk.
-*/
-static int winSync(tdsqlite3_file *id, int flags){
-#ifndef SQLITE_NO_SYNC
-  /*
-  ** Used only when SQLITE_NO_SYNC is not defined.
-   */
-  BOOL rc;
-#endif
-#if !defined(NDEBUG) || !defined(SQLITE_NO_SYNC) || \
-    defined(SQLITE_HAVE_OS_TRACE)
-  /*
-  ** Used when SQLITE_NO_SYNC is not defined and by the assert() and/or
-  ** OSTRACE() macros.
-   */
-  winFile *pFile = (winFile*)id;
-#else
-  UNUSED_PARAMETER(id);
-#endif
-
-  assert( pFile );
-  /* Check that one of SQLITE_SYNC_NORMAL or FULL was passed */
-  assert((flags&0x0F)==SQLITE_SYNC_NORMAL
-      || (flags&0x0F)==SQLITE_SYNC_FULL
-  );
-
-  /* Unix cannot, but some systems may return SQLITE_FULL from here. This
-  ** line is to test that doing so does not cause any problems.
-  */
-  SimulateDiskfullError( return SQLITE_FULL );
-
-  OSTRACE(("SYNC pid=%lu, pFile=%p, file=%p, flags=%x, lock=%d\n",
-           osGetCurrentProcessId(), pFile, pFile->h, flags,
-           pFile->locktype));
-
-#ifndef SQLITE_TEST
-  UNUSED_PARAMETER(flags);
-#else
-  if( (flags&0x0F)==SQLITE_SYNC_FULL ){
-    tdsqlite3_fullsync_count++;
-  }
-  tdsqlite3_sync_count++;
-#endif
-
-  /* If we compiled with the SQLITE_NO_SYNC flag, then syncing is a
-  ** no-op
-  */
-#ifdef SQLITE_NO_SYNC
-  OSTRACE(("SYNC-NOP pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n",
-           osGetCurrentProcessId(), pFile, pFile->h));
-  return SQLITE_OK;
-#else
-#if SQLITE_MAX_MMAP_SIZE>0
-  if( pFile->pMapRegion ){
-    if( osFlushViewOfFile(pFile->pMapRegion, 0) ){
-      OSTRACE(("SYNC-MMAP pid=%lu, pFile=%p, pMapRegion=%p, "
-               "rc=SQLITE_OK\n", osGetCurrentProcessId(),
-               pFile, pFile->pMapRegion));
-    }else{
-      pFile->lastErrno = osGetLastError();
-      OSTRACE(("SYNC-MMAP pid=%lu, pFile=%p, pMapRegion=%p, "
-               "rc=SQLITE_IOERR_MMAP\n", osGetCurrentProcessId(),
-               pFile, pFile->pMapRegion));
-      return winLogError(SQLITE_IOERR_MMAP, pFile->lastErrno,
-                         "winSync1", pFile->zPath);
-    }
-  }
-#endif
-  rc = osFlushFileBuffers(pFile->h);
-  SimulateIOError( rc=FALSE );
-  if( rc ){
-    OSTRACE(("SYNC pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n",
-             osGetCurrentProcessId(), pFile, pFile->h));
-    return SQLITE_OK;
-  }else{
-    pFile->lastErrno = osGetLastError();
-    OSTRACE(("SYNC pid=%lu, pFile=%p, file=%p, rc=SQLITE_IOERR_FSYNC\n",
-             osGetCurrentProcessId(), pFile, pFile->h));
-    return winLogError(SQLITE_IOERR_FSYNC, pFile->lastErrno,
-                       "winSync2", pFile->zPath);
-  }
-#endif
-}
-
-/*
-** Determine the current size of a file in bytes
-*/
-static int winFileSize(tdsqlite3_file *id, tdsqlite3_int64 *pSize){
-  winFile *pFile = (winFile*)id;
-  int rc = SQLITE_OK;
-
-  assert( id!=0 );
-  assert( pSize!=0 );
-  SimulateIOError(return SQLITE_IOERR_FSTAT);
-  OSTRACE(("SIZE file=%p, pSize=%p\n", pFile->h, pSize));
-
-#if SQLITE_OS_WINRT
-  {
-    FILE_STANDARD_INFO info;
-    if( osGetFileInformationByHandleEx(pFile->h, FileStandardInfo,
-                                     &info, sizeof(info)) ){
-      *pSize = info.EndOfFile.QuadPart;
-    }else{
-      pFile->lastErrno = osGetLastError();
-      rc = winLogError(SQLITE_IOERR_FSTAT, pFile->lastErrno,
-                       "winFileSize", pFile->zPath);
-    }
-  }
-#else
-  {
-    DWORD upperBits;
-    DWORD lowerBits;
-    DWORD lastErrno;
-
-    lowerBits = osGetFileSize(pFile->h, &upperBits);
-    *pSize = (((tdsqlite3_int64)upperBits)<<32) + lowerBits;
-    if(   (lowerBits == INVALID_FILE_SIZE)
-       && ((lastErrno = osGetLastError())!=NO_ERROR) ){
-      pFile->lastErrno = lastErrno;
-      rc = winLogError(SQLITE_IOERR_FSTAT, pFile->lastErrno,
-                       "winFileSize", pFile->zPath);
-    }
-  }
-#endif
-  OSTRACE(("SIZE file=%p, pSize=%p, *pSize=%lld, rc=%s\n",
-           pFile->h, pSize, *pSize, tdsqlite3ErrName(rc)));
-  return rc;
-}
-
-/*
-** LOCKFILE_FAIL_IMMEDIATELY is undefined on some Windows systems.
-*/
-#ifndef LOCKFILE_FAIL_IMMEDIATELY
-# define LOCKFILE_FAIL_IMMEDIATELY 1
-#endif
-
-#ifndef LOCKFILE_EXCLUSIVE_LOCK
-# define LOCKFILE_EXCLUSIVE_LOCK 2
-#endif
-
-/*
-** Historically, SQLite has used both the LockFile and LockFileEx functions.
-** When the LockFile function was used, it was always expected to fail
-** immediately if the lock could not be obtained.  Also, it always expected to
-** obtain an exclusive lock.  These flags are used with the LockFileEx function
-** and reflect those expectations; therefore, they should not be changed.
-*/
-#ifndef SQLITE_LOCKFILE_FLAGS
-# define SQLITE_LOCKFILE_FLAGS   (LOCKFILE_FAIL_IMMEDIATELY | \
-                                  LOCKFILE_EXCLUSIVE_LOCK)
-#endif
-
-/*
-** Currently, SQLite never calls the LockFileEx function without wanting the
-** call to fail immediately if the lock cannot be obtained.
-*/
-#ifndef SQLITE_LOCKFILEEX_FLAGS
-# define SQLITE_LOCKFILEEX_FLAGS (LOCKFILE_FAIL_IMMEDIATELY)
-#endif
-
-/*
-** Acquire a reader lock.
-** Different API routines are called depending on whether or not this
-** is Win9x or WinNT.
-*/
-static int winGetReadLock(winFile *pFile){
-  int res;
-  OSTRACE(("READ-LOCK file=%p, lock=%d\n", pFile->h, pFile->locktype));
-  if( osIsNT() ){
-#if SQLITE_OS_WINCE
-    /*
-    ** NOTE: Windows CE is handled differently here due its lack of the Win32
-    **       API LockFileEx.
-    */
-    res = winceLockFile(&pFile->h, SHARED_FIRST, 0, 1, 0);
-#else
-    res = winLockFile(&pFile->h, SQLITE_LOCKFILEEX_FLAGS, SHARED_FIRST, 0,
-                      SHARED_SIZE, 0);
-#endif
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    int lk;
-    tdsqlite3_randomness(sizeof(lk), &lk);
-    pFile->sharedLockByte = (short)((lk & 0x7fffffff)%(SHARED_SIZE - 1));
-    res = winLockFile(&pFile->h, SQLITE_LOCKFILE_FLAGS,
-                      SHARED_FIRST+pFile->sharedLockByte, 0, 1, 0);
-  }
-#endif
-  if( res == 0 ){
-    pFile->lastErrno = osGetLastError();
-    /* No need to log a failure to lock */
-  }
-  OSTRACE(("READ-LOCK file=%p, result=%d\n", pFile->h, res));
-  return res;
-}
-
-/*
-** Undo a readlock
-*/
-static int winUnlockReadLock(winFile *pFile){
-  int res;
-  DWORD lastErrno;
-  OSTRACE(("READ-UNLOCK file=%p, lock=%d\n", pFile->h, pFile->locktype));
-  if( osIsNT() ){
-    res = winUnlockFile(&pFile->h, SHARED_FIRST, 0, SHARED_SIZE, 0);
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    res = winUnlockFile(&pFile->h, SHARED_FIRST+pFile->sharedLockByte, 0, 1, 0);
-  }
-#endif
-  if( res==0 && ((lastErrno = osGetLastError())!=ERROR_NOT_LOCKED) ){
-    pFile->lastErrno = lastErrno;
-    winLogError(SQLITE_IOERR_UNLOCK, pFile->lastErrno,
-                "winUnlockReadLock", pFile->zPath);
-  }
-  OSTRACE(("READ-UNLOCK file=%p, result=%d\n", pFile->h, res));
-  return res;
-}
-
-/*
-** Lock the file with the lock specified by parameter locktype - one
-** of the following:
-**
-**     (1) SHARED_LOCK
-**     (2) RESERVED_LOCK
-**     (3) PENDING_LOCK
-**     (4) EXCLUSIVE_LOCK
-**
-** Sometimes when requesting one lock state, additional lock states
-** are inserted in between.  The locking might fail on one of the later
-** transitions leaving the lock state different from what it started but
-** still short of its goal.  The following chart shows the allowed
-** transitions and the inserted intermediate states:
-**
-**    UNLOCKED -> SHARED
-**    SHARED -> RESERVED
-**    SHARED -> (PENDING) -> EXCLUSIVE
-**    RESERVED -> (PENDING) -> EXCLUSIVE
-**    PENDING -> EXCLUSIVE
-**
-** This routine will only increase a lock.  The winUnlock() routine
-** erases all locks at once and returns us immediately to locking level 0.
-** It is not possible to lower the locking level one step at a time.  You
-** must go straight to locking level 0.
-*/
-static int winLock(tdsqlite3_file *id, int locktype){
-  int rc = SQLITE_OK;    /* Return code from subroutines */
-  int res = 1;           /* Result of a Windows lock call */
-  int newLocktype;       /* Set pFile->locktype to this value before exiting */
-  int gotPendingLock = 0;/* True if we acquired a PENDING lock this time */
-  winFile *pFile = (winFile*)id;
-  DWORD lastErrno = NO_ERROR;
-
-  assert( id!=0 );
-  OSTRACE(("LOCK file=%p, oldLock=%d(%d), newLock=%d\n",
-           pFile->h, pFile->locktype, pFile->sharedLockByte, locktype));
-
-  /* If there is already a lock of this type or more restrictive on the
-  ** OsFile, do nothing. Don't use the end_lock: exit path, as
-  ** tdsqlite3OsEnterMutex() hasn't been called yet.
-  */
-  if( pFile->locktype>=locktype ){
-    OSTRACE(("LOCK-HELD file=%p, rc=SQLITE_OK\n", pFile->h));
-    return SQLITE_OK;
-  }
-
-  /* Do not allow any kind of write-lock on a read-only database
-  */
-  if( (pFile->ctrlFlags & WINFILE_RDONLY)!=0 && locktype>=RESERVED_LOCK ){
-    return SQLITE_IOERR_LOCK;
-  }
-
-  /* Make sure the locking sequence is correct
-  */
-  assert( pFile->locktype!=NO_LOCK || locktype==SHARED_LOCK );
-  assert( locktype!=PENDING_LOCK );
-  assert( locktype!=RESERVED_LOCK || pFile->locktype==SHARED_LOCK );
-
-  /* Lock the PENDING_LOCK byte if we need to acquire a PENDING lock or
-  ** a SHARED lock.  If we are acquiring a SHARED lock, the acquisition of
-  ** the PENDING_LOCK byte is temporary.
-  */
-  newLocktype = pFile->locktype;
-  if( pFile->locktype==NO_LOCK
-   || (locktype==EXCLUSIVE_LOCK && pFile->locktype<=RESERVED_LOCK)
-  ){
-    int cnt = 3;
-    while( cnt-->0 && (res = winLockFile(&pFile->h, SQLITE_LOCKFILE_FLAGS,
-                                         PENDING_BYTE, 0, 1, 0))==0 ){
-      /* Try 3 times to get the pending lock.  This is needed to work
-      ** around problems caused by indexing and/or anti-virus software on
-      ** Windows systems.
-      ** If you are using this code as a model for alternative VFSes, do not
-      ** copy this retry logic.  It is a hack intended for Windows only.
-      */
-      lastErrno = osGetLastError();
-      OSTRACE(("LOCK-PENDING-FAIL file=%p, count=%d, result=%d\n",
-               pFile->h, cnt, res));
-      if( lastErrno==ERROR_INVALID_HANDLE ){
-        pFile->lastErrno = lastErrno;
-        rc = SQLITE_IOERR_LOCK;
-        OSTRACE(("LOCK-FAIL file=%p, count=%d, rc=%s\n",
-                 pFile->h, cnt, tdsqlite3ErrName(rc)));
-        return rc;
-      }
-      if( cnt ) tdsqlite3_win32_sleep(1);
-    }
-    gotPendingLock = res;
-    if( !res ){
-      lastErrno = osGetLastError();
-    }
-  }
-
-  /* Acquire a shared lock
-  */
-  if( locktype==SHARED_LOCK && res ){
-    assert( pFile->locktype==NO_LOCK );
-    res = winGetReadLock(pFile);
-    if( res ){
-      newLocktype = SHARED_LOCK;
-    }else{
-      lastErrno = osGetLastError();
-    }
-  }
-
-  /* Acquire a RESERVED lock
-  */
-  if( locktype==RESERVED_LOCK && res ){
-    assert( pFile->locktype==SHARED_LOCK );
-    res = winLockFile(&pFile->h, SQLITE_LOCKFILE_FLAGS, RESERVED_BYTE, 0, 1, 0);
-    if( res ){
-      newLocktype = RESERVED_LOCK;
-    }else{
-      lastErrno = osGetLastError();
-    }
-  }
-
-  /* Acquire a PENDING lock
-  */
-  if( locktype==EXCLUSIVE_LOCK && res ){
-    newLocktype = PENDING_LOCK;
-    gotPendingLock = 0;
-  }
-
-  /* Acquire an EXCLUSIVE lock
-  */
-  if( locktype==EXCLUSIVE_LOCK && res ){
-    assert( pFile->locktype>=SHARED_LOCK );
-    res = winUnlockReadLock(pFile);
-    res = winLockFile(&pFile->h, SQLITE_LOCKFILE_FLAGS, SHARED_FIRST, 0,
-                      SHARED_SIZE, 0);
-    if( res ){
-      newLocktype = EXCLUSIVE_LOCK;
-    }else{
-      lastErrno = osGetLastError();
-      winGetReadLock(pFile);
-    }
-  }
-
-  /* If we are holding a PENDING lock that ought to be released, then
-  ** release it now.
-  */
-  if( gotPendingLock && locktype==SHARED_LOCK ){
-    winUnlockFile(&pFile->h, PENDING_BYTE, 0, 1, 0);
-  }
-
-  /* Update the state of the lock has held in the file descriptor then
-  ** return the appropriate result code.
-  */
-  if( res ){
-    rc = SQLITE_OK;
-  }else{
-    pFile->lastErrno = lastErrno;
-    rc = SQLITE_BUSY;
-    OSTRACE(("LOCK-FAIL file=%p, wanted=%d, got=%d\n",
-             pFile->h, locktype, newLocktype));
-  }
-  pFile->locktype = (u8)newLocktype;
-  OSTRACE(("LOCK file=%p, lock=%d, rc=%s\n",
-           pFile->h, pFile->locktype, tdsqlite3ErrName(rc)));
-  return rc;
-}
-
-/*
-** This routine checks if there is a RESERVED lock held on the specified
-** file by this or any other process. If such a lock is held, return
-** non-zero, otherwise zero.
-*/
-static int winCheckReservedLock(tdsqlite3_file *id, int *pResOut){
-  int res;
-  winFile *pFile = (winFile*)id;
-
-  SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; );
-  OSTRACE(("TEST-WR-LOCK file=%p, pResOut=%p\n", pFile->h, pResOut));
-
-  assert( id!=0 );
-  if( pFile->locktype>=RESERVED_LOCK ){
-    res = 1;
-    OSTRACE(("TEST-WR-LOCK file=%p, result=%d (local)\n", pFile->h, res));
-  }else{
-    res = winLockFile(&pFile->h, SQLITE_LOCKFILEEX_FLAGS,RESERVED_BYTE,0,1,0);
-    if( res ){
-      winUnlockFile(&pFile->h, RESERVED_BYTE, 0, 1, 0);
-    }
-    res = !res;
-    OSTRACE(("TEST-WR-LOCK file=%p, result=%d (remote)\n", pFile->h, res));
-  }
-  *pResOut = res;
-  OSTRACE(("TEST-WR-LOCK file=%p, pResOut=%p, *pResOut=%d, rc=SQLITE_OK\n",
-           pFile->h, pResOut, *pResOut));
-  return SQLITE_OK;
-}
-
-/*
-** Lower the locking level on file descriptor id to locktype.  locktype
-** must be either NO_LOCK or SHARED_LOCK.
-**
-** If the locking level of the file descriptor is already at or below
-** the requested locking level, this routine is a no-op.
-**
-** It is not possible for this routine to fail if the second argument
-** is NO_LOCK.  If the second argument is SHARED_LOCK then this routine
-** might return SQLITE_IOERR;
-*/
-static int winUnlock(tdsqlite3_file *id, int locktype){
-  int type;
-  winFile *pFile = (winFile*)id;
-  int rc = SQLITE_OK;
-  assert( pFile!=0 );
-  assert( locktype<=SHARED_LOCK );
-  OSTRACE(("UNLOCK file=%p, oldLock=%d(%d), newLock=%d\n",
-           pFile->h, pFile->locktype, pFile->sharedLockByte, locktype));
-  type = pFile->locktype;
-  if( type>=EXCLUSIVE_LOCK ){
-    winUnlockFile(&pFile->h, SHARED_FIRST, 0, SHARED_SIZE, 0);
-    if( locktype==SHARED_LOCK && !winGetReadLock(pFile) ){
-      /* This should never happen.  We should always be able to
-      ** reacquire the read lock */
-      rc = winLogError(SQLITE_IOERR_UNLOCK, osGetLastError(),
-                       "winUnlock", pFile->zPath);
-    }
-  }
-  if( type>=RESERVED_LOCK ){
-    winUnlockFile(&pFile->h, RESERVED_BYTE, 0, 1, 0);
-  }
-  if( locktype==NO_LOCK && type>=SHARED_LOCK ){
-    winUnlockReadLock(pFile);
-  }
-  if( type>=PENDING_LOCK ){
-    winUnlockFile(&pFile->h, PENDING_BYTE, 0, 1, 0);
-  }
-  pFile->locktype = (u8)locktype;
-  OSTRACE(("UNLOCK file=%p, lock=%d, rc=%s\n",
-           pFile->h, pFile->locktype, tdsqlite3ErrName(rc)));
-  return rc;
-}
-
-/******************************************************************************
-****************************** No-op Locking **********************************
-**
-** Of the various locking implementations available, this is by far the
-** simplest:  locking is ignored.  No attempt is made to lock the database
-** file for reading or writing.
-**
-** This locking mode is appropriate for use on read-only databases
-** (ex: databases that are burned into CD-ROM, for example.)  It can
-** also be used if the application employs some external mechanism to
-** prevent simultaneous access of the same database by two or more
-** database connections.  But there is a serious risk of database
-** corruption if this locking mode is used in situations where multiple
-** database connections are accessing the same database file at the same
-** time and one or more of those connections are writing.
-*/
-
-static int winNolockLock(tdsqlite3_file *id, int locktype){
-  UNUSED_PARAMETER(id);
-  UNUSED_PARAMETER(locktype);
-  return SQLITE_OK;
-}
-
-static int winNolockCheckReservedLock(tdsqlite3_file *id, int *pResOut){
-  UNUSED_PARAMETER(id);
-  UNUSED_PARAMETER(pResOut);
-  return SQLITE_OK;
-}
-
-static int winNolockUnlock(tdsqlite3_file *id, int locktype){
-  UNUSED_PARAMETER(id);
-  UNUSED_PARAMETER(locktype);
-  return SQLITE_OK;
-}
-
-/******************* End of the no-op lock implementation *********************
-******************************************************************************/
-
-/*
-** If *pArg is initially negative then this is a query.  Set *pArg to
-** 1 or 0 depending on whether or not bit mask of pFile->ctrlFlags is set.
-**
-** If *pArg is 0 or 1, then clear or set the mask bit of pFile->ctrlFlags.
-*/
-static void winModeBit(winFile *pFile, unsigned char mask, int *pArg){
-  if( *pArg<0 ){
-    *pArg = (pFile->ctrlFlags & mask)!=0;
-  }else if( (*pArg)==0 ){
-    pFile->ctrlFlags &= ~mask;
-  }else{
-    pFile->ctrlFlags |= mask;
-  }
-}
-
-/* Forward references to VFS helper methods used for temporary files */
-static int winGetTempname(tdsqlite3_vfs *, char **);
-static int winIsDir(const void *);
-static BOOL winIsDriveLetterAndColon(const char *);
-
-/*
-** Control and query of the open file handle.
-*/
-static int winFileControl(tdsqlite3_file *id, int op, void *pArg){
-  winFile *pFile = (winFile*)id;
-  OSTRACE(("FCNTL file=%p, op=%d, pArg=%p\n", pFile->h, op, pArg));
-  switch( op ){
-    case SQLITE_FCNTL_LOCKSTATE: {
-      *(int*)pArg = pFile->locktype;
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_LAST_ERRNO: {
-      *(int*)pArg = (int)pFile->lastErrno;
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_CHUNK_SIZE: {
-      pFile->szChunk = *(int *)pArg;
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_SIZE_HINT: {
-      if( pFile->szChunk>0 ){
-        tdsqlite3_int64 oldSz;
-        int rc = winFileSize(id, &oldSz);
-        if( rc==SQLITE_OK ){
-          tdsqlite3_int64 newSz = *(tdsqlite3_int64*)pArg;
-          if( newSz>oldSz ){
-            SimulateIOErrorBenign(1);
-            rc = winTruncate(id, newSz);
-            SimulateIOErrorBenign(0);
-          }
-        }
-        OSTRACE(("FCNTL file=%p, rc=%s\n", pFile->h, tdsqlite3ErrName(rc)));
-        return rc;
-      }
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_PERSIST_WAL: {
-      winModeBit(pFile, WINFILE_PERSIST_WAL, (int*)pArg);
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_POWERSAFE_OVERWRITE: {
-      winModeBit(pFile, WINFILE_PSOW, (int*)pArg);
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_VFSNAME: {
-      *(char**)pArg = tdsqlite3_mprintf("%s", pFile->pVfs->zName);
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_WIN32_AV_RETRY: {
-      int *a = (int*)pArg;
-      if( a[0]>0 ){
-        winIoerrRetry = a[0];
-      }else{
-        a[0] = winIoerrRetry;
-      }
-      if( a[1]>0 ){
-        winIoerrRetryDelay = a[1];
-      }else{
-        a[1] = winIoerrRetryDelay;
-      }
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-    case SQLITE_FCNTL_WIN32_GET_HANDLE: {
-      LPHANDLE phFile = (LPHANDLE)pArg;
-      *phFile = pFile->h;
-      OSTRACE(("FCNTL file=%p, rc=SQLITE_OK\n", pFile->h));
-      return SQLITE_OK;
-    }
-#ifdef SQLITE_TEST
-    case SQLITE_FCNTL_WIN32_SET_HANDLE: {
-      LPHANDLE phFile = (LPHANDLE)pArg;
-      HANDLE hOldFile = pFile->h;
-      pFile->h = *phFile;
-      *phFile = hOldFile;
-      OSTRACE(("FCNTL oldFile=%p, newFile=%p, rc=SQLITE_OK\n",
-               hOldFile, pFile->h));
-      return SQLITE_OK;
-    }
-#endif
-    case SQLITE_FCNTL_TEMPFILENAME: {
-      char *zTFile = 0;
-      int rc = winGetTempname(pFile->pVfs, &zTFile);
-      if( rc==SQLITE_OK ){
-        *(char**)pArg = zTFile;
-      }
-      OSTRACE(("FCNTL file=%p, rc=%s\n", pFile->h, tdsqlite3ErrName(rc)));
-      return rc;
-    }
-#if SQLITE_MAX_MMAP_SIZE>0
-    case SQLITE_FCNTL_MMAP_SIZE: {
-      i64 newLimit = *(i64*)pArg;
-      int rc = SQLITE_OK;
-      if( newLimit>tdsqlite3GlobalConfig.mxMmap ){
-        newLimit = tdsqlite3GlobalConfig.mxMmap;
-      }
-
-      /* The value of newLimit may be eventually cast to (SIZE_T) and passed
-      ** to MapViewOfFile(). Restrict its value to 2GB if (SIZE_T) is not at
-      ** least a 64-bit type. */
-      if( newLimit>0 && sizeof(SIZE_T)<8 ){
-        newLimit = (newLimit & 0x7FFFFFFF);
-      }
-
-      *(i64*)pArg = pFile->mmapSizeMax;
-      if( newLimit>=0 && newLimit!=pFile->mmapSizeMax && pFile->nFetchOut==0 ){
-        pFile->mmapSizeMax = newLimit;
-        if( pFile->mmapSize>0 ){
-          winUnmapfile(pFile);
-          rc = winMapfile(pFile, -1);
-        }
-      }
-      OSTRACE(("FCNTL file=%p, rc=%s\n", pFile->h, tdsqlite3ErrName(rc)));
-      return rc;
-    }
-#endif
-  }
-  OSTRACE(("FCNTL file=%p, rc=SQLITE_NOTFOUND\n", pFile->h));
-  return SQLITE_NOTFOUND;
-}
-
-/*
-** Return the sector size in bytes of the underlying block device for
-** the specified file. This is almost always 512 bytes, but may be
-** larger for some devices.
-**
-** SQLite code assumes this function cannot fail. It also assumes that
-** if two files are created in the same file-system directory (i.e.
-** a database and its journal file) that the sector size will be the
-** same for both.
-*/
-static int winSectorSize(tdsqlite3_file *id){
-  (void)id;
-  return SQLITE_DEFAULT_SECTOR_SIZE;
-}
-
-/*
-** Return a vector of device characteristics.
-*/
-static int winDeviceCharacteristics(tdsqlite3_file *id){
-  winFile *p = (winFile*)id;
-  return SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN |
-         ((p->ctrlFlags & WINFILE_PSOW)?SQLITE_IOCAP_POWERSAFE_OVERWRITE:0);
-}
-
-/*
-** Windows will only let you create file view mappings
-** on allocation size granularity boundaries.
-** During tdsqlite3_os_init() we do a GetSystemInfo()
-** to get the granularity size.
-*/
-static SYSTEM_INFO winSysInfo;
-
-#ifndef SQLITE_OMIT_WAL
-
-/*
-** Helper functions to obtain and relinquish the global mutex. The
-** global mutex is used to protect the winLockInfo objects used by
-** this file, all of which may be shared by multiple threads.
-**
-** Function winShmMutexHeld() is used to assert() that the global mutex
-** is held when required. This function is only used as part of assert()
-** statements. e.g.
-**
-**   winShmEnterMutex()
-**     assert( winShmMutexHeld() );
-**   winShmLeaveMutex()
-*/
-static tdsqlite3_mutex *winBigLock = 0;
-static void winShmEnterMutex(void){
-  tdsqlite3_mutex_enter(winBigLock);
-}
-static void winShmLeaveMutex(void){
-  tdsqlite3_mutex_leave(winBigLock);
-}
-#ifndef NDEBUG
-static int winShmMutexHeld(void) {
-  return tdsqlite3_mutex_held(winBigLock);
-}
-#endif
-
-/*
-** Object used to represent a single file opened and mmapped to provide
-** shared memory.  When multiple threads all reference the same
-** log-summary, each thread has its own winFile object, but they all
-** point to a single instance of this object.  In other words, each
-** log-summary is opened only once per process.
-**
-** winShmMutexHeld() must be true when creating or destroying
-** this object or while reading or writing the following fields:
-**
-**      nRef
-**      pNext
-**
-** The following fields are read-only after the object is created:
-**
-**      fid
-**      zFilename
-**
-** Either winShmNode.mutex must be held or winShmNode.nRef==0 and
-** winShmMutexHeld() is true when reading or writing any other field
-** in this structure.
-**
-*/
-struct winShmNode {
-  tdsqlite3_mutex *mutex;      /* Mutex to access this object */
-  char *zFilename;           /* Name of the file */
-  winFile hFile;             /* File handle from winOpen */
-
-  int szRegion;              /* Size of shared-memory regions */
-  int nRegion;               /* Size of array apRegion */
-  u8 isReadonly;             /* True if read-only */
-  u8 isUnlocked;             /* True if no DMS lock held */
-
-  struct ShmRegion {
-    HANDLE hMap;             /* File handle from CreateFileMapping */
-    void *pMap;
-  } *aRegion;
-  DWORD lastErrno;           /* The Windows errno from the last I/O error */
-
-  int nRef;                  /* Number of winShm objects pointing to this */
-  winShm *pFirst;            /* All winShm objects pointing to this */
-  winShmNode *pNext;         /* Next in list of all winShmNode objects */
-#if defined(SQLITE_DEBUG) || defined(SQLITE_HAVE_OS_TRACE)
-  u8 nextShmId;              /* Next available winShm.id value */
-#endif
-};
-
-/*
-** A global array of all winShmNode objects.
-**
-** The winShmMutexHeld() must be true while reading or writing this list.
-*/
-static winShmNode *winShmNodeList = 0;
-
-/*
-** Structure used internally by this VFS to record the state of an
-** open shared memory connection.
-**
-** The following fields are initialized when this object is created and
-** are read-only thereafter:
-**
-**    winShm.pShmNode
-**    winShm.id
-**
-** All other fields are read/write.  The winShm.pShmNode->mutex must be held
-** while accessing any read/write fields.
-*/
-struct winShm {
-  winShmNode *pShmNode;      /* The underlying winShmNode object */
-  winShm *pNext;             /* Next winShm with the same winShmNode */
-  u8 hasMutex;               /* True if holding the winShmNode mutex */
-  u16 sharedMask;            /* Mask of shared locks held */
-  u16 exclMask;              /* Mask of exclusive locks held */
-#if defined(SQLITE_DEBUG) || defined(SQLITE_HAVE_OS_TRACE)
-  u8 id;                     /* Id of this connection with its winShmNode */
-#endif
-};
-
-/*
-** Constants used for locking
-*/
-#define WIN_SHM_BASE   ((22+SQLITE_SHM_NLOCK)*4)        /* first lock byte */
-#define WIN_SHM_DMS    (WIN_SHM_BASE+SQLITE_SHM_NLOCK)  /* deadman switch */
-
-/*
-** Apply advisory locks for all n bytes beginning at ofst.
-*/
-#define WINSHM_UNLCK  1
-#define WINSHM_RDLCK  2
-#define WINSHM_WRLCK  3
-static int winShmSystemLock(
-  winShmNode *pFile,    /* Apply locks to this open shared-memory segment */
-  int lockType,         /* WINSHM_UNLCK, WINSHM_RDLCK, or WINSHM_WRLCK */
-  int ofst,             /* Offset to first byte to be locked/unlocked */
-  int nByte             /* Number of bytes to lock or unlock */
-){
-  int rc = 0;           /* Result code form Lock/UnlockFileEx() */
-
-  /* Access to the winShmNode object is serialized by the caller */
-  assert( pFile->nRef==0 || tdsqlite3_mutex_held(pFile->mutex) );
-
-  OSTRACE(("SHM-LOCK file=%p, lock=%d, offset=%d, size=%d\n",
-           pFile->hFile.h, lockType, ofst, nByte));
-
-  /* Release/Acquire the system-level lock */
-  if( lockType==WINSHM_UNLCK ){
-    rc = winUnlockFile(&pFile->hFile.h, ofst, 0, nByte, 0);
-  }else{
-    /* Initialize the locking parameters */
-    DWORD dwFlags = LOCKFILE_FAIL_IMMEDIATELY;
-    if( lockType == WINSHM_WRLCK ) dwFlags |= LOCKFILE_EXCLUSIVE_LOCK;
-    rc = winLockFile(&pFile->hFile.h, dwFlags, ofst, 0, nByte, 0);
-  }
-
-  if( rc!= 0 ){
-    rc = SQLITE_OK;
-  }else{
-    pFile->lastErrno =  osGetLastError();
-    rc = SQLITE_BUSY;
-  }
-
-  OSTRACE(("SHM-LOCK file=%p, func=%s, errno=%lu, rc=%s\n",
-           pFile->hFile.h, (lockType == WINSHM_UNLCK) ? "winUnlockFile" :
-           "winLockFile", pFile->lastErrno, tdsqlite3ErrName(rc)));
-
-  return rc;
-}
-
-/* Forward references to VFS methods */
-static int winOpen(tdsqlite3_vfs*,const char*,tdsqlite3_file*,int,int*);
-static int winDelete(tdsqlite3_vfs *,const char*,int);
-
-/*
-** Purge the winShmNodeList list of all entries with winShmNode.nRef==0.
-**
-** This is not a VFS shared-memory method; it is a utility function called
-** by VFS shared-memory methods.
-*/
-static void winShmPurge(tdsqlite3_vfs *pVfs, int deleteFlag){
-  winShmNode **pp;
-  winShmNode *p;
-  assert( winShmMutexHeld() );
-  OSTRACE(("SHM-PURGE pid=%lu, deleteFlag=%d\n",
-           osGetCurrentProcessId(), deleteFlag));
-  pp = &winShmNodeList;
-  while( (p = *pp)!=0 ){
-    if( p->nRef==0 ){
-      int i;
-      if( p->mutex ){ tdsqlite3_mutex_free(p->mutex); }
-      for(i=0; i<p->nRegion; i++){
-        BOOL bRc = osUnmapViewOfFile(p->aRegion[i].pMap);
-        OSTRACE(("SHM-PURGE-UNMAP pid=%lu, region=%d, rc=%s\n",
-                 osGetCurrentProcessId(), i, bRc ? "ok" : "failed"));
-        UNUSED_VARIABLE_VALUE(bRc);
-        bRc = osCloseHandle(p->aRegion[i].hMap);
-        OSTRACE(("SHM-PURGE-CLOSE pid=%lu, region=%d, rc=%s\n",
-                 osGetCurrentProcessId(), i, bRc ? "ok" : "failed"));
-        UNUSED_VARIABLE_VALUE(bRc);
-      }
-      if( p->hFile.h!=NULL && p->hFile.h!=INVALID_HANDLE_VALUE ){
-        SimulateIOErrorBenign(1);
-        winClose((tdsqlite3_file *)&p->hFile);
-        SimulateIOErrorBenign(0);
-      }
-      if( deleteFlag ){
-        SimulateIOErrorBenign(1);
-        tdsqlite3BeginBenignMalloc();
-        winDelete(pVfs, p->zFilename, 0);
-        tdsqlite3EndBenignMalloc();
-        SimulateIOErrorBenign(0);
-      }
-      *pp = p->pNext;
-      tdsqlite3_free(p->aRegion);
-      tdsqlite3_free(p);
-    }else{
-      pp = &p->pNext;
-    }
-  }
-}
-
-/*
-** The DMS lock has not yet been taken on shm file pShmNode. Attempt to
-** take it now. Return SQLITE_OK if successful, or an SQLite error
-** code otherwise.
-**
-** If the DMS cannot be locked because this is a readonly_shm=1
-** connection and no other process already holds a lock, return
-** SQLITE_READONLY_CANTINIT and set pShmNode->isUnlocked=1.
-*/
-static int winLockSharedMemory(winShmNode *pShmNode){
-  int rc = winShmSystemLock(pShmNode, WINSHM_WRLCK, WIN_SHM_DMS, 1);
-
-  if( rc==SQLITE_OK ){
-    if( pShmNode->isReadonly ){
-      pShmNode->isUnlocked = 1;
-      winShmSystemLock(pShmNode, WINSHM_UNLCK, WIN_SHM_DMS, 1);
-      return SQLITE_READONLY_CANTINIT;
-    }else if( winTruncate((tdsqlite3_file*)&pShmNode->hFile, 0) ){
-      winShmSystemLock(pShmNode, WINSHM_UNLCK, WIN_SHM_DMS, 1);
-      return winLogError(SQLITE_IOERR_SHMOPEN, osGetLastError(),
-                         "winLockSharedMemory", pShmNode->zFilename);
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    winShmSystemLock(pShmNode, WINSHM_UNLCK, WIN_SHM_DMS, 1);
-  }
-
-  return winShmSystemLock(pShmNode, WINSHM_RDLCK, WIN_SHM_DMS, 1);
-}
-
-/*
-** Open the shared-memory area associated with database file pDbFd.
-**
-** When opening a new shared-memory file, if no other instances of that
-** file are currently open, in this process or in other processes, then
-** the file must be truncated to zero length or have its header cleared.
-*/
-static int winOpenSharedMemory(winFile *pDbFd){
-  struct winShm *p;                  /* The connection to be opened */
-  winShmNode *pShmNode = 0;          /* The underlying mmapped file */
-  int rc = SQLITE_OK;                /* Result code */
-  winShmNode *pNew;                  /* Newly allocated winShmNode */
-  int nName;                         /* Size of zName in bytes */
-
-  assert( pDbFd->pShm==0 );    /* Not previously opened */
-
-  /* Allocate space for the new tdsqlite3_shm object.  Also speculatively
-  ** allocate space for a new winShmNode and filename.
-  */
-  p = tdsqlite3MallocZero( sizeof(*p) );
-  if( p==0 ) return SQLITE_IOERR_NOMEM_BKPT;
-  nName = tdsqlite3Strlen30(pDbFd->zPath);
-  pNew = tdsqlite3MallocZero( sizeof(*pShmNode) + nName + 17 );
-  if( pNew==0 ){
-    tdsqlite3_free(p);
-    return SQLITE_IOERR_NOMEM_BKPT;
-  }
-  pNew->zFilename = (char*)&pNew[1];
-  tdsqlite3_snprintf(nName+15, pNew->zFilename, "%s-shm", pDbFd->zPath);
-  tdsqlite3FileSuffix3(pDbFd->zPath, pNew->zFilename);
-
-  /* Look to see if there is an existing winShmNode that can be used.
-  ** If no matching winShmNode currently exists, create a new one.
-  */
-  winShmEnterMutex();
-  for(pShmNode = winShmNodeList; pShmNode; pShmNode=pShmNode->pNext){
-    /* TBD need to come up with better match here.  Perhaps
-    ** use FILE_ID_BOTH_DIR_INFO Structure.
-    */
-    if( tdsqlite3StrICmp(pShmNode->zFilename, pNew->zFilename)==0 ) break;
-  }
-  if( pShmNode ){
-    tdsqlite3_free(pNew);
-  }else{
-    int inFlags = SQLITE_OPEN_WAL;
-    int outFlags = 0;
-
-    pShmNode = pNew;
-    pNew = 0;
-    ((winFile*)(&pShmNode->hFile))->h = INVALID_HANDLE_VALUE;
-    pShmNode->pNext = winShmNodeList;
-    winShmNodeList = pShmNode;
-
-    if( tdsqlite3GlobalConfig.bCoreMutex ){
-      pShmNode->mutex = tdsqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
-      if( pShmNode->mutex==0 ){
-        rc = SQLITE_IOERR_NOMEM_BKPT;
-        goto shm_open_err;
-      }
-    }
-
-    if( 0==tdsqlite3_uri_boolean(pDbFd->zPath, "readonly_shm", 0) ){
-      inFlags |= SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
-    }else{
-      inFlags |= SQLITE_OPEN_READONLY;
-    }
-    rc = winOpen(pDbFd->pVfs, pShmNode->zFilename,
-                 (tdsqlite3_file*)&pShmNode->hFile,
-                 inFlags, &outFlags);
-    if( rc!=SQLITE_OK ){
-      rc = winLogError(rc, osGetLastError(), "winOpenShm",
-                       pShmNode->zFilename);
-      goto shm_open_err;
-    }
-    if( outFlags==SQLITE_OPEN_READONLY ) pShmNode->isReadonly = 1;
-
-    rc = winLockSharedMemory(pShmNode);
-    if( rc!=SQLITE_OK && rc!=SQLITE_READONLY_CANTINIT ) goto shm_open_err;
-  }
-
-  /* Make the new connection a child of the winShmNode */
-  p->pShmNode = pShmNode;
-#if defined(SQLITE_DEBUG) || defined(SQLITE_HAVE_OS_TRACE)
-  p->id = pShmNode->nextShmId++;
-#endif
-  pShmNode->nRef++;
-  pDbFd->pShm = p;
-  winShmLeaveMutex();
-
-  /* The reference count on pShmNode has already been incremented under
-  ** the cover of the winShmEnterMutex() mutex and the pointer from the
-  ** new (struct winShm) object to the pShmNode has been set. All that is
-  ** left to do is to link the new object into the linked list starting
-  ** at pShmNode->pFirst. This must be done while holding the pShmNode->mutex
-  ** mutex.
-  */
-  tdsqlite3_mutex_enter(pShmNode->mutex);
-  p->pNext = pShmNode->pFirst;
-  pShmNode->pFirst = p;
-  tdsqlite3_mutex_leave(pShmNode->mutex);
-  return rc;
-
-  /* Jump here on any error */
-shm_open_err:
-  winShmSystemLock(pShmNode, WINSHM_UNLCK, WIN_SHM_DMS, 1);
-  winShmPurge(pDbFd->pVfs, 0);      /* This call frees pShmNode if required */
-  tdsqlite3_free(p);
-  tdsqlite3_free(pNew);
-  winShmLeaveMutex();
-  return rc;
-}
-
-/*
-** Close a connection to shared-memory.  Delete the underlying
-** storage if deleteFlag is true.
-*/
-static int winShmUnmap(
-  tdsqlite3_file *fd,          /* Database holding shared memory */
-  int deleteFlag             /* Delete after closing if true */
-){
-  winFile *pDbFd;       /* Database holding shared-memory */
-  winShm *p;            /* The connection to be closed */
-  winShmNode *pShmNode; /* The underlying shared-memory file */
-  winShm **pp;          /* For looping over sibling connections */
-
-  pDbFd = (winFile*)fd;
-  p = pDbFd->pShm;
-  if( p==0 ) return SQLITE_OK;
-  pShmNode = p->pShmNode;
-
-  /* Remove connection p from the set of connections associated
-  ** with pShmNode */
-  tdsqlite3_mutex_enter(pShmNode->mutex);
-  for(pp=&pShmNode->pFirst; (*pp)!=p; pp = &(*pp)->pNext){}
-  *pp = p->pNext;
-
-  /* Free the connection p */
-  tdsqlite3_free(p);
-  pDbFd->pShm = 0;
-  tdsqlite3_mutex_leave(pShmNode->mutex);
-
-  /* If pShmNode->nRef has reached 0, then close the underlying
-  ** shared-memory file, too */
-  winShmEnterMutex();
-  assert( pShmNode->nRef>0 );
-  pShmNode->nRef--;
-  if( pShmNode->nRef==0 ){
-    winShmPurge(pDbFd->pVfs, deleteFlag);
-  }
-  winShmLeaveMutex();
-
-  return SQLITE_OK;
-}
-
-/*
-** Change the lock state for a shared-memory segment.
-*/
-static int winShmLock(
-  tdsqlite3_file *fd,          /* Database file holding the shared memory */
-  int ofst,                  /* First lock to acquire or release */
-  int n,                     /* Number of locks to acquire or release */
-  int flags                  /* What to do with the lock */
-){
-  winFile *pDbFd = (winFile*)fd;        /* Connection holding shared memory */
-  winShm *p = pDbFd->pShm;              /* The shared memory being locked */
-  winShm *pX;                           /* For looping over all siblings */
-  winShmNode *pShmNode = p->pShmNode;
-  int rc = SQLITE_OK;                   /* Result code */
-  u16 mask;                             /* Mask of locks to take or release */
-
-  assert( ofst>=0 && ofst+n<=SQLITE_SHM_NLOCK );
-  assert( n>=1 );
-  assert( flags==(SQLITE_SHM_LOCK | SQLITE_SHM_SHARED)
-       || flags==(SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE)
-       || flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED)
-       || flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE) );
-  assert( n==1 || (flags & SQLITE_SHM_EXCLUSIVE)!=0 );
-
-  mask = (u16)((1U<<(ofst+n)) - (1U<<ofst));
-  assert( n>1 || mask==(1<<ofst) );
-  tdsqlite3_mutex_enter(pShmNode->mutex);
-  if( flags & SQLITE_SHM_UNLOCK ){
-    u16 allMask = 0; /* Mask of locks held by siblings */
-
-    /* See if any siblings hold this same lock */
-    for(pX=pShmNode->pFirst; pX; pX=pX->pNext){
-      if( pX==p ) continue;
-      assert( (pX->exclMask & (p->exclMask|p->sharedMask))==0 );
-      allMask |= pX->sharedMask;
-    }
-
-    /* Unlock the system-level locks */
-    if( (mask & allMask)==0 ){
-      rc = winShmSystemLock(pShmNode, WINSHM_UNLCK, ofst+WIN_SHM_BASE, n);
-    }else{
-      rc = SQLITE_OK;
-    }
-
-    /* Undo the local locks */
-    if( rc==SQLITE_OK ){
-      p->exclMask &= ~mask;
-      p->sharedMask &= ~mask;
-    }
-  }else if( flags & SQLITE_SHM_SHARED ){
-    u16 allShared = 0;  /* Union of locks held by connections other than "p" */
-
-    /* Find out which shared locks are already held by sibling connections.
-    ** If any sibling already holds an exclusive lock, go ahead and return
-    ** SQLITE_BUSY.
-    */
-    for(pX=pShmNode->pFirst; pX; pX=pX->pNext){
-      if( (pX->exclMask & mask)!=0 ){
-        rc = SQLITE_BUSY;
-        break;
-      }
-      allShared |= pX->sharedMask;
-    }
-
-    /* Get shared locks at the system level, if necessary */
-    if( rc==SQLITE_OK ){
-      if( (allShared & mask)==0 ){
-        rc = winShmSystemLock(pShmNode, WINSHM_RDLCK, ofst+WIN_SHM_BASE, n);
-      }else{
-        rc = SQLITE_OK;
-      }
-    }
-
-    /* Get the local shared locks */
-    if( rc==SQLITE_OK ){
-      p->sharedMask |= mask;
-    }
-  }else{
-    /* Make sure no sibling connections hold locks that will block this
-    ** lock.  If any do, return SQLITE_BUSY right away.
-    */
-    for(pX=pShmNode->pFirst; pX; pX=pX->pNext){
-      if( (pX->exclMask & mask)!=0 || (pX->sharedMask & mask)!=0 ){
-        rc = SQLITE_BUSY;
-        break;
-      }
-    }
-
-    /* Get the exclusive locks at the system level.  Then if successful
-    ** also mark the local connection as being locked.
-    */
-    if( rc==SQLITE_OK ){
-      rc = winShmSystemLock(pShmNode, WINSHM_WRLCK, ofst+WIN_SHM_BASE, n);
-      if( rc==SQLITE_OK ){
-        assert( (p->sharedMask & mask)==0 );
-        p->exclMask |= mask;
-      }
-    }
-  }
-  tdsqlite3_mutex_leave(pShmNode->mutex);
-  OSTRACE(("SHM-LOCK pid=%lu, id=%d, sharedMask=%03x, exclMask=%03x, rc=%s\n",
-           osGetCurrentProcessId(), p->id, p->sharedMask, p->exclMask,
-           tdsqlite3ErrName(rc)));
-  return rc;
-}
-
-/*
-** Implement a memory barrier or memory fence on shared memory.
-**
-** All loads and stores begun before the barrier must complete before
-** any load or store begun after the barrier.
-*/
-static void winShmBarrier(
-  tdsqlite3_file *fd          /* Database holding the shared memory */
-){
-  UNUSED_PARAMETER(fd);
-  tdsqlite3MemoryBarrier();   /* compiler-defined memory barrier */
-  winShmEnterMutex();       /* Also mutex, for redundancy */
-  winShmLeaveMutex();
-}
-
-/*
-** This function is called to obtain a pointer to region iRegion of the
-** shared-memory associated with the database file fd. Shared-memory regions
-** are numbered starting from zero. Each shared-memory region is szRegion
-** bytes in size.
-**
-** If an error occurs, an error code is returned and *pp is set to NULL.
-**
-** Otherwise, if the isWrite parameter is 0 and the requested shared-memory
-** region has not been allocated (by any client, including one running in a
-** separate process), then *pp is set to NULL and SQLITE_OK returned. If
-** isWrite is non-zero and the requested shared-memory region has not yet
-** been allocated, it is allocated by this function.
-**
-** If the shared-memory region has already been allocated or is allocated by
-** this call as described above, then it is mapped into this processes
-** address space (if it is not already), *pp is set to point to the mapped
-** memory and SQLITE_OK returned.
-*/
-static int winShmMap(
-  tdsqlite3_file *fd,               /* Handle open on database file */
-  int iRegion,                    /* Region to retrieve */
-  int szRegion,                   /* Size of regions */
-  int isWrite,                    /* True to extend file if necessary */
-  void volatile **pp              /* OUT: Mapped memory */
-){
-  winFile *pDbFd = (winFile*)fd;
-  winShm *pShm = pDbFd->pShm;
-  winShmNode *pShmNode;
-  DWORD protect = PAGE_READWRITE;
-  DWORD flags = FILE_MAP_WRITE | FILE_MAP_READ;
-  int rc = SQLITE_OK;
-
-  if( !pShm ){
-    rc = winOpenSharedMemory(pDbFd);
-    if( rc!=SQLITE_OK ) return rc;
-    pShm = pDbFd->pShm;
-    assert( pShm!=0 );
-  }
-  pShmNode = pShm->pShmNode;
-
-  tdsqlite3_mutex_enter(pShmNode->mutex);
-  if( pShmNode->isUnlocked ){
-    rc = winLockSharedMemory(pShmNode);
-    if( rc!=SQLITE_OK ) goto shmpage_out;
-    pShmNode->isUnlocked = 0;
-  }
-  assert( szRegion==pShmNode->szRegion || pShmNode->nRegion==0 );
-
-  if( pShmNode->nRegion<=iRegion ){
-    struct ShmRegion *apNew;           /* New aRegion[] array */
-    int nByte = (iRegion+1)*szRegion;  /* Minimum required file size */
-    tdsqlite3_int64 sz;                  /* Current size of wal-index file */
-
-    pShmNode->szRegion = szRegion;
-
-    /* The requested region is not mapped into this processes address space.
-    ** Check to see if it has been allocated (i.e. if the wal-index file is
-    ** large enough to contain the requested region).
-    */
-    rc = winFileSize((tdsqlite3_file *)&pShmNode->hFile, &sz);
-    if( rc!=SQLITE_OK ){
-      rc = winLogError(SQLITE_IOERR_SHMSIZE, osGetLastError(),
-                       "winShmMap1", pDbFd->zPath);
-      goto shmpage_out;
-    }
-
-    if( sz<nByte ){
-      /* The requested memory region does not exist. If isWrite is set to
-      ** zero, exit early. *pp will be set to NULL and SQLITE_OK returned.
-      **
-      ** Alternatively, if isWrite is non-zero, use ftruncate() to allocate
-      ** the requested memory region.
-      */
-      if( !isWrite ) goto shmpage_out;
-      rc = winTruncate((tdsqlite3_file *)&pShmNode->hFile, nByte);
-      if( rc!=SQLITE_OK ){
-        rc = winLogError(SQLITE_IOERR_SHMSIZE, osGetLastError(),
-                         "winShmMap2", pDbFd->zPath);
-        goto shmpage_out;
-      }
-    }
-
-    /* Map the requested memory region into this processes address space. */
-    apNew = (struct ShmRegion *)tdsqlite3_realloc64(
-        pShmNode->aRegion, (iRegion+1)*sizeof(apNew[0])
-    );
-    if( !apNew ){
-      rc = SQLITE_IOERR_NOMEM_BKPT;
-      goto shmpage_out;
-    }
-    pShmNode->aRegion = apNew;
-
-    if( pShmNode->isReadonly ){
-      protect = PAGE_READONLY;
-      flags = FILE_MAP_READ;
-    }
-
-    while( pShmNode->nRegion<=iRegion ){
-      HANDLE hMap = NULL;         /* file-mapping handle */
-      void *pMap = 0;             /* Mapped memory region */
-
-#if SQLITE_OS_WINRT
-      hMap = osCreateFileMappingFromApp(pShmNode->hFile.h,
-          NULL, protect, nByte, NULL
-      );
-#elif defined(SQLITE_WIN32_HAS_WIDE)
-      hMap = osCreateFileMappingW(pShmNode->hFile.h,
-          NULL, protect, 0, nByte, NULL
-      );
-#elif defined(SQLITE_WIN32_HAS_ANSI) && SQLITE_WIN32_CREATEFILEMAPPINGA
-      hMap = osCreateFileMappingA(pShmNode->hFile.h,
-          NULL, protect, 0, nByte, NULL
-      );
-#endif
-      OSTRACE(("SHM-MAP-CREATE pid=%lu, region=%d, size=%d, rc=%s\n",
-               osGetCurrentProcessId(), pShmNode->nRegion, nByte,
-               hMap ? "ok" : "failed"));
-      if( hMap ){
-        int iOffset = pShmNode->nRegion*szRegion;
-        int iOffsetShift = iOffset % winSysInfo.dwAllocationGranularity;
-#if SQLITE_OS_WINRT
-        pMap = osMapViewOfFileFromApp(hMap, flags,
-            iOffset - iOffsetShift, szRegion + iOffsetShift
-        );
-#else
-        pMap = osMapViewOfFile(hMap, flags,
-            0, iOffset - iOffsetShift, szRegion + iOffsetShift
-        );
-#endif
-        OSTRACE(("SHM-MAP-MAP pid=%lu, region=%d, offset=%d, size=%d, rc=%s\n",
-                 osGetCurrentProcessId(), pShmNode->nRegion, iOffset,
-                 szRegion, pMap ? "ok" : "failed"));
-      }
-      if( !pMap ){
-        pShmNode->lastErrno = osGetLastError();
-        rc = winLogError(SQLITE_IOERR_SHMMAP, pShmNode->lastErrno,
-                         "winShmMap3", pDbFd->zPath);
-        if( hMap ) osCloseHandle(hMap);
-        goto shmpage_out;
-      }
-
-      pShmNode->aRegion[pShmNode->nRegion].pMap = pMap;
-      pShmNode->aRegion[pShmNode->nRegion].hMap = hMap;
-      pShmNode->nRegion++;
-    }
-  }
-
-shmpage_out:
-  if( pShmNode->nRegion>iRegion ){
-    int iOffset = iRegion*szRegion;
-    int iOffsetShift = iOffset % winSysInfo.dwAllocationGranularity;
-    char *p = (char *)pShmNode->aRegion[iRegion].pMap;
-    *pp = (void *)&p[iOffsetShift];
-  }else{
-    *pp = 0;
-  }
-  if( pShmNode->isReadonly && rc==SQLITE_OK ) rc = SQLITE_READONLY;
-  tdsqlite3_mutex_leave(pShmNode->mutex);
-  return rc;
-}
-
-#else
-# define winShmMap     0
-# define winShmLock    0
-# define winShmBarrier 0
-# define winShmUnmap   0
-#endif /* #ifndef SQLITE_OMIT_WAL */
-
-/*
-** Cleans up the mapped region of the specified file, if any.
-*/
-#if SQLITE_MAX_MMAP_SIZE>0
-static int winUnmapfile(winFile *pFile){
-  assert( pFile!=0 );
-  OSTRACE(("UNMAP-FILE pid=%lu, pFile=%p, hMap=%p, pMapRegion=%p, "
-           "mmapSize=%lld, mmapSizeMax=%lld\n",
-           osGetCurrentProcessId(), pFile, pFile->hMap, pFile->pMapRegion,
-           pFile->mmapSize, pFile->mmapSizeMax));
-  if( pFile->pMapRegion ){
-    if( !osUnmapViewOfFile(pFile->pMapRegion) ){
-      pFile->lastErrno = osGetLastError();
-      OSTRACE(("UNMAP-FILE pid=%lu, pFile=%p, pMapRegion=%p, "
-               "rc=SQLITE_IOERR_MMAP\n", osGetCurrentProcessId(), pFile,
-               pFile->pMapRegion));
-      return winLogError(SQLITE_IOERR_MMAP, pFile->lastErrno,
-                         "winUnmapfile1", pFile->zPath);
-    }
-    pFile->pMapRegion = 0;
-    pFile->mmapSize = 0;
-  }
-  if( pFile->hMap!=NULL ){
-    if( !osCloseHandle(pFile->hMap) ){
-      pFile->lastErrno = osGetLastError();
-      OSTRACE(("UNMAP-FILE pid=%lu, pFile=%p, hMap=%p, rc=SQLITE_IOERR_MMAP\n",
-               osGetCurrentProcessId(), pFile, pFile->hMap));
-      return winLogError(SQLITE_IOERR_MMAP, pFile->lastErrno,
-                         "winUnmapfile2", pFile->zPath);
-    }
-    pFile->hMap = NULL;
-  }
-  OSTRACE(("UNMAP-FILE pid=%lu, pFile=%p, rc=SQLITE_OK\n",
-           osGetCurrentProcessId(), pFile));
-  return SQLITE_OK;
-}
-
-/*
-** Memory map or remap the file opened by file-descriptor pFd (if the file
-** is already mapped, the existing mapping is replaced by the new). Or, if
-** there already exists a mapping for this file, and there are still
-** outstanding xFetch() references to it, this function is a no-op.
-**
-** If parameter nByte is non-negative, then it is the requested size of
-** the mapping to create. Otherwise, if nByte is less than zero, then the
-** requested size is the size of the file on disk. The actual size of the
-** created mapping is either the requested size or the value configured
-** using SQLITE_FCNTL_MMAP_SIZE, whichever is smaller.
-**
-** SQLITE_OK is returned if no error occurs (even if the mapping is not
-** recreated as a result of outstanding references) or an SQLite error
-** code otherwise.
-*/
-static int winMapfile(winFile *pFd, tdsqlite3_int64 nByte){
-  tdsqlite3_int64 nMap = nByte;
-  int rc;
-
-  assert( nMap>=0 || pFd->nFetchOut==0 );
-  OSTRACE(("MAP-FILE pid=%lu, pFile=%p, size=%lld\n",
-           osGetCurrentProcessId(), pFd, nByte));
-
-  if( pFd->nFetchOut>0 ) return SQLITE_OK;
-
-  if( nMap<0 ){
-    rc = winFileSize((tdsqlite3_file*)pFd, &nMap);
-    if( rc ){
-      OSTRACE(("MAP-FILE pid=%lu, pFile=%p, rc=SQLITE_IOERR_FSTAT\n",
-               osGetCurrentProcessId(), pFd));
-      return SQLITE_IOERR_FSTAT;
-    }
-  }
-  if( nMap>pFd->mmapSizeMax ){
-    nMap = pFd->mmapSizeMax;
-  }
-  nMap &= ~(tdsqlite3_int64)(winSysInfo.dwPageSize - 1);
-
-  if( nMap==0 && pFd->mmapSize>0 ){
-    winUnmapfile(pFd);
-  }
-  if( nMap!=pFd->mmapSize ){
-    void *pNew = 0;
-    DWORD protect = PAGE_READONLY;
-    DWORD flags = FILE_MAP_READ;
-
-    winUnmapfile(pFd);
-#ifdef SQLITE_MMAP_READWRITE
-    if( (pFd->ctrlFlags & WINFILE_RDONLY)==0 ){
-      protect = PAGE_READWRITE;
-      flags |= FILE_MAP_WRITE;
-    }
-#endif
-#if SQLITE_OS_WINRT
-    pFd->hMap = osCreateFileMappingFromApp(pFd->h, NULL, protect, nMap, NULL);
-#elif defined(SQLITE_WIN32_HAS_WIDE)
-    pFd->hMap = osCreateFileMappingW(pFd->h, NULL, protect,
-                                (DWORD)((nMap>>32) & 0xffffffff),
-                                (DWORD)(nMap & 0xffffffff), NULL);
-#elif defined(SQLITE_WIN32_HAS_ANSI) && SQLITE_WIN32_CREATEFILEMAPPINGA
-    pFd->hMap = osCreateFileMappingA(pFd->h, NULL, protect,
-                                (DWORD)((nMap>>32) & 0xffffffff),
-                                (DWORD)(nMap & 0xffffffff), NULL);
-#endif
-    if( pFd->hMap==NULL ){
-      pFd->lastErrno = osGetLastError();
-      rc = winLogError(SQLITE_IOERR_MMAP, pFd->lastErrno,
-                       "winMapfile1", pFd->zPath);
-      /* Log the error, but continue normal operation using xRead/xWrite */
-      OSTRACE(("MAP-FILE-CREATE pid=%lu, pFile=%p, rc=%s\n",
-               osGetCurrentProcessId(), pFd, tdsqlite3ErrName(rc)));
-      return SQLITE_OK;
-    }
-    assert( (nMap % winSysInfo.dwPageSize)==0 );
-    assert( sizeof(SIZE_T)==sizeof(tdsqlite3_int64) || nMap<=0xffffffff );
-#if SQLITE_OS_WINRT
-    pNew = osMapViewOfFileFromApp(pFd->hMap, flags, 0, (SIZE_T)nMap);
-#else
-    pNew = osMapViewOfFile(pFd->hMap, flags, 0, 0, (SIZE_T)nMap);
-#endif
-    if( pNew==NULL ){
-      osCloseHandle(pFd->hMap);
-      pFd->hMap = NULL;
-      pFd->lastErrno = osGetLastError();
-      rc = winLogError(SQLITE_IOERR_MMAP, pFd->lastErrno,
-                       "winMapfile2", pFd->zPath);
-      /* Log the error, but continue normal operation using xRead/xWrite */
-      OSTRACE(("MAP-FILE-MAP pid=%lu, pFile=%p, rc=%s\n",
-               osGetCurrentProcessId(), pFd, tdsqlite3ErrName(rc)));
-      return SQLITE_OK;
-    }
-    pFd->pMapRegion = pNew;
-    pFd->mmapSize = nMap;
-  }
-
-  OSTRACE(("MAP-FILE pid=%lu, pFile=%p, rc=SQLITE_OK\n",
-           osGetCurrentProcessId(), pFd));
-  return SQLITE_OK;
-}
-#endif /* SQLITE_MAX_MMAP_SIZE>0 */
-
-/*
-** If possible, return a pointer to a mapping of file fd starting at offset
-** iOff. The mapping must be valid for at least nAmt bytes.
-**
-** If such a pointer can be obtained, store it in *pp and return SQLITE_OK.
-** Or, if one cannot but no error occurs, set *pp to 0 and return SQLITE_OK.
-** Finally, if an error does occur, return an SQLite error code. The final
-** value of *pp is undefined in this case.
-**
-** If this function does return a pointer, the caller must eventually
-** release the reference by calling winUnfetch().
-*/
-static int winFetch(tdsqlite3_file *fd, i64 iOff, int nAmt, void **pp){
-#if SQLITE_MAX_MMAP_SIZE>0
-  winFile *pFd = (winFile*)fd;   /* The underlying database file */
-#endif
-  *pp = 0;
-
-  OSTRACE(("FETCH pid=%lu, pFile=%p, offset=%lld, amount=%d, pp=%p\n",
-           osGetCurrentProcessId(), fd, iOff, nAmt, pp));
-
-#if SQLITE_MAX_MMAP_SIZE>0
-  if( pFd->mmapSizeMax>0 ){
-    if( pFd->pMapRegion==0 ){
-      int rc = winMapfile(pFd, -1);
-      if( rc!=SQLITE_OK ){
-        OSTRACE(("FETCH pid=%lu, pFile=%p, rc=%s\n",
-                 osGetCurrentProcessId(), pFd, tdsqlite3ErrName(rc)));
-        return rc;
-      }
-    }
-    if( pFd->mmapSize >= iOff+nAmt ){
-      assert( pFd->pMapRegion!=0 );
-      *pp = &((u8 *)pFd->pMapRegion)[iOff];
-      pFd->nFetchOut++;
-    }
-  }
-#endif
-
-  OSTRACE(("FETCH pid=%lu, pFile=%p, pp=%p, *pp=%p, rc=SQLITE_OK\n",
-           osGetCurrentProcessId(), fd, pp, *pp));
-  return SQLITE_OK;
-}
-
-/*
-** If the third argument is non-NULL, then this function releases a
-** reference obtained by an earlier call to winFetch(). The second
-** argument passed to this function must be the same as the corresponding
-** argument that was passed to the winFetch() invocation.
-**
-** Or, if the third argument is NULL, then this function is being called
-** to inform the VFS layer that, according to POSIX, any existing mapping
-** may now be invalid and should be unmapped.
-*/
-static int winUnfetch(tdsqlite3_file *fd, i64 iOff, void *p){
-#if SQLITE_MAX_MMAP_SIZE>0
-  winFile *pFd = (winFile*)fd;   /* The underlying database file */
-
-  /* If p==0 (unmap the entire file) then there must be no outstanding
-  ** xFetch references. Or, if p!=0 (meaning it is an xFetch reference),
-  ** then there must be at least one outstanding.  */
-  assert( (p==0)==(pFd->nFetchOut==0) );
-
-  /* If p!=0, it must match the iOff value. */
-  assert( p==0 || p==&((u8 *)pFd->pMapRegion)[iOff] );
-
-  OSTRACE(("UNFETCH pid=%lu, pFile=%p, offset=%lld, p=%p\n",
-           osGetCurrentProcessId(), pFd, iOff, p));
-
-  if( p ){
-    pFd->nFetchOut--;
-  }else{
-    /* FIXME:  If Windows truly always prevents truncating or deleting a
-    ** file while a mapping is held, then the following winUnmapfile() call
-    ** is unnecessary can be omitted - potentially improving
-    ** performance.  */
-    winUnmapfile(pFd);
-  }
-
-  assert( pFd->nFetchOut>=0 );
-#endif
-
-  OSTRACE(("UNFETCH pid=%lu, pFile=%p, rc=SQLITE_OK\n",
-           osGetCurrentProcessId(), fd));
-  return SQLITE_OK;
-}
-
-/*
-** Here ends the implementation of all tdsqlite3_file methods.
-**
-********************** End tdsqlite3_file Methods *******************************
-******************************************************************************/
-
-/*
-** This vector defines all the methods that can operate on an
-** tdsqlite3_file for win32.
-*/
-static const tdsqlite3_io_methods winIoMethod = {
-  3,                              /* iVersion */
-  winClose,                       /* xClose */
-  winRead,                        /* xRead */
-  winWrite,                       /* xWrite */
-  winTruncate,                    /* xTruncate */
-  winSync,                        /* xSync */
-  winFileSize,                    /* xFileSize */
-  winLock,                        /* xLock */
-  winUnlock,                      /* xUnlock */
-  winCheckReservedLock,           /* xCheckReservedLock */
-  winFileControl,                 /* xFileControl */
-  winSectorSize,                  /* xSectorSize */
-  winDeviceCharacteristics,       /* xDeviceCharacteristics */
-  winShmMap,                      /* xShmMap */
-  winShmLock,                     /* xShmLock */
-  winShmBarrier,                  /* xShmBarrier */
-  winShmUnmap,                    /* xShmUnmap */
-  winFetch,                       /* xFetch */
-  winUnfetch                      /* xUnfetch */
-};
-
-/*
-** This vector defines all the methods that can operate on an
-** tdsqlite3_file for win32 without performing any locking.
-*/
-static const tdsqlite3_io_methods winIoNolockMethod = {
-  3,                              /* iVersion */
-  winClose,                       /* xClose */
-  winRead,                        /* xRead */
-  winWrite,                       /* xWrite */
-  winTruncate,                    /* xTruncate */
-  winSync,                        /* xSync */
-  winFileSize,                    /* xFileSize */
-  winNolockLock,                  /* xLock */
-  winNolockUnlock,                /* xUnlock */
-  winNolockCheckReservedLock,     /* xCheckReservedLock */
-  winFileControl,                 /* xFileControl */
-  winSectorSize,                  /* xSectorSize */
-  winDeviceCharacteristics,       /* xDeviceCharacteristics */
-  winShmMap,                      /* xShmMap */
-  winShmLock,                     /* xShmLock */
-  winShmBarrier,                  /* xShmBarrier */
-  winShmUnmap,                    /* xShmUnmap */
-  winFetch,                       /* xFetch */
-  winUnfetch                      /* xUnfetch */
-};
-
-static winVfsAppData winAppData = {
-  &winIoMethod,       /* pMethod */
-  0,                  /* pAppData */
-  0                   /* bNoLock */
-};
-
-static winVfsAppData winNolockAppData = {
-  &winIoNolockMethod, /* pMethod */
-  0,                  /* pAppData */
-  1                   /* bNoLock */
-};
-
-/****************************************************************************
-**************************** tdsqlite3_vfs methods ****************************
-**
-** This division contains the implementation of methods on the
-** tdsqlite3_vfs object.
-*/
-
-#if defined(__CYGWIN__)
-/*
-** Convert a filename from whatever the underlying operating system
-** supports for filenames into UTF-8.  Space to hold the result is
-** obtained from malloc and must be freed by the calling function.
-*/
-static char *winConvertToUtf8Filename(const void *zFilename){
-  char *zConverted = 0;
-  if( osIsNT() ){
-    zConverted = winUnicodeToUtf8(zFilename);
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    zConverted = winMbcsToUtf8(zFilename, osAreFileApisANSI());
-  }
-#endif
-  /* caller will handle out of memory */
-  return zConverted;
-}
-#endif
-
-/*
-** Convert a UTF-8 filename into whatever form the underlying
-** operating system wants filenames in.  Space to hold the result
-** is obtained from malloc and must be freed by the calling
-** function.
-*/
-static void *winConvertFromUtf8Filename(const char *zFilename){
-  void *zConverted = 0;
-  if( osIsNT() ){
-    zConverted = winUtf8ToUnicode(zFilename);
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    zConverted = winUtf8ToMbcs(zFilename, osAreFileApisANSI());
-  }
-#endif
-  /* caller will handle out of memory */
-  return zConverted;
-}
-
-/*
-** This function returns non-zero if the specified UTF-8 string buffer
-** ends with a directory separator character or one was successfully
-** added to it.
-*/
-static int winMakeEndInDirSep(int nBuf, char *zBuf){
-  if( zBuf ){
-    int nLen = tdsqlite3Strlen30(zBuf);
-    if( nLen>0 ){
-      if( winIsDirSep(zBuf[nLen-1]) ){
-        return 1;
-      }else if( nLen+1<nBuf ){
-        zBuf[nLen] = winGetDirSep();
-        zBuf[nLen+1] = '\0';
-        return 1;
-      }
-    }
-  }
-  return 0;
-}
-
-/*
-** Create a temporary file name and store the resulting pointer into pzBuf.
-** The pointer returned in pzBuf must be freed via tdsqlite3_free().
-*/
-static int winGetTempname(tdsqlite3_vfs *pVfs, char **pzBuf){
-  static char zChars[] =
-    "abcdefghijklmnopqrstuvwxyz"
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-    "0123456789";
-  size_t i, j;
-  int nPre = tdsqlite3Strlen30(SQLITE_TEMP_FILE_PREFIX);
-  int nMax, nBuf, nDir, nLen;
-  char *zBuf;
-
-  /* It's odd to simulate an io-error here, but really this is just
-  ** using the io-error infrastructure to test that SQLite handles this
-  ** function failing.
-  */
-  SimulateIOError( return SQLITE_IOERR );
-
-  /* Allocate a temporary buffer to store the fully qualified file
-  ** name for the temporary file.  If this fails, we cannot continue.
-  */
-  nMax = pVfs->mxPathname; nBuf = nMax + 2;
-  zBuf = tdsqlite3MallocZero( nBuf );
-  if( !zBuf ){
-    OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-    return SQLITE_IOERR_NOMEM_BKPT;
-  }
-
-  /* Figure out the effective temporary directory.  First, check if one
-  ** has been explicitly set by the application; otherwise, use the one
-  ** configured by the operating system.
-  */
-  nDir = nMax - (nPre + 15);
-  assert( nDir>0 );
-  if( tdsqlite3_temp_directory ){
-    int nDirLen = tdsqlite3Strlen30(tdsqlite3_temp_directory);
-    if( nDirLen>0 ){
-      if( !winIsDirSep(tdsqlite3_temp_directory[nDirLen-1]) ){
-        nDirLen++;
-      }
-      if( nDirLen>nDir ){
-        tdsqlite3_free(zBuf);
-        OSTRACE(("TEMP-FILENAME rc=SQLITE_ERROR\n"));
-        return winLogError(SQLITE_ERROR, 0, "winGetTempname1", 0);
-      }
-      tdsqlite3_snprintf(nMax, zBuf, "%s", tdsqlite3_temp_directory);
-    }
-  }
-#if defined(__CYGWIN__)
-  else{
-    static const char *azDirs[] = {
-       0, /* getenv("SQLITE_TMPDIR") */
-       0, /* getenv("TMPDIR") */
-       0, /* getenv("TMP") */
-       0, /* getenv("TEMP") */
-       0, /* getenv("USERPROFILE") */
-       "/var/tmp",
-       "/usr/tmp",
-       "/tmp",
-       ".",
-       0        /* List terminator */
-    };
-    unsigned int i;
-    const char *zDir = 0;
-
-    if( !azDirs[0] ) azDirs[0] = getenv("SQLITE_TMPDIR");
-    if( !azDirs[1] ) azDirs[1] = getenv("TMPDIR");
-    if( !azDirs[2] ) azDirs[2] = getenv("TMP");
-    if( !azDirs[3] ) azDirs[3] = getenv("TEMP");
-    if( !azDirs[4] ) azDirs[4] = getenv("USERPROFILE");
-    for(i=0; i<sizeof(azDirs)/sizeof(azDirs[0]); zDir=azDirs[i++]){
-      void *zConverted;
-      if( zDir==0 ) continue;
-      /* If the path starts with a drive letter followed by the colon
-      ** character, assume it is already a native Win32 path; otherwise,
-      ** it must be converted to a native Win32 path via the Cygwin API
-      ** prior to using it.
-      */
-      if( winIsDriveLetterAndColon(zDir) ){
-        zConverted = winConvertFromUtf8Filename(zDir);
-        if( !zConverted ){
-          tdsqlite3_free(zBuf);
-          OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-          return SQLITE_IOERR_NOMEM_BKPT;
-        }
-        if( winIsDir(zConverted) ){
-          tdsqlite3_snprintf(nMax, zBuf, "%s", zDir);
-          tdsqlite3_free(zConverted);
-          break;
-        }
-        tdsqlite3_free(zConverted);
-      }else{
-        zConverted = tdsqlite3MallocZero( nMax+1 );
-        if( !zConverted ){
-          tdsqlite3_free(zBuf);
-          OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-          return SQLITE_IOERR_NOMEM_BKPT;
-        }
-        if( cygwin_conv_path(
-                osIsNT() ? CCP_POSIX_TO_WIN_W : CCP_POSIX_TO_WIN_A, zDir,
-                zConverted, nMax+1)<0 ){
-          tdsqlite3_free(zConverted);
-          tdsqlite3_free(zBuf);
-          OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_CONVPATH\n"));
-          return winLogError(SQLITE_IOERR_CONVPATH, (DWORD)errno,
-                             "winGetTempname2", zDir);
-        }
-        if( winIsDir(zConverted) ){
-          /* At this point, we know the candidate directory exists and should
-          ** be used.  However, we may need to convert the string containing
-          ** its name into UTF-8 (i.e. if it is UTF-16 right now).
-          */
-          char *zUtf8 = winConvertToUtf8Filename(zConverted);
-          if( !zUtf8 ){
-            tdsqlite3_free(zConverted);
-            tdsqlite3_free(zBuf);
-            OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-            return SQLITE_IOERR_NOMEM_BKPT;
-          }
-          tdsqlite3_snprintf(nMax, zBuf, "%s", zUtf8);
-          tdsqlite3_free(zUtf8);
-          tdsqlite3_free(zConverted);
-          break;
-        }
-        tdsqlite3_free(zConverted);
-      }
-    }
-  }
-#elif !SQLITE_OS_WINRT && !defined(__CYGWIN__)
-  else if( osIsNT() ){
-    char *zMulti;
-    LPWSTR zWidePath = tdsqlite3MallocZero( nMax*sizeof(WCHAR) );
-    if( !zWidePath ){
-      tdsqlite3_free(zBuf);
-      OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-      return SQLITE_IOERR_NOMEM_BKPT;
-    }
-    if( osGetTempPathW(nMax, zWidePath)==0 ){
-      tdsqlite3_free(zWidePath);
-      tdsqlite3_free(zBuf);
-      OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_GETTEMPPATH\n"));
-      return winLogError(SQLITE_IOERR_GETTEMPPATH, osGetLastError(),
-                         "winGetTempname2", 0);
-    }
-    zMulti = winUnicodeToUtf8(zWidePath);
-    if( zMulti ){
-      tdsqlite3_snprintf(nMax, zBuf, "%s", zMulti);
-      tdsqlite3_free(zMulti);
-      tdsqlite3_free(zWidePath);
-    }else{
-      tdsqlite3_free(zWidePath);
-      tdsqlite3_free(zBuf);
-      OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-      return SQLITE_IOERR_NOMEM_BKPT;
-    }
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    char *zUtf8;
-    char *zMbcsPath = tdsqlite3MallocZero( nMax );
-    if( !zMbcsPath ){
-      tdsqlite3_free(zBuf);
-      OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-      return SQLITE_IOERR_NOMEM_BKPT;
-    }
-    if( osGetTempPathA(nMax, zMbcsPath)==0 ){
-      tdsqlite3_free(zBuf);
-      OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_GETTEMPPATH\n"));
-      return winLogError(SQLITE_IOERR_GETTEMPPATH, osGetLastError(),
-                         "winGetTempname3", 0);
-    }
-    zUtf8 = winMbcsToUtf8(zMbcsPath, osAreFileApisANSI());
-    if( zUtf8 ){
-      tdsqlite3_snprintf(nMax, zBuf, "%s", zUtf8);
-      tdsqlite3_free(zUtf8);
-    }else{
-      tdsqlite3_free(zBuf);
-      OSTRACE(("TEMP-FILENAME rc=SQLITE_IOERR_NOMEM\n"));
-      return SQLITE_IOERR_NOMEM_BKPT;
-    }
-  }
-#endif /* SQLITE_WIN32_HAS_ANSI */
-#endif /* !SQLITE_OS_WINRT */
-
-  /*
-  ** Check to make sure the temporary directory ends with an appropriate
-  ** separator.  If it does not and there is not enough space left to add
-  ** one, fail.
-  */
-  if( !winMakeEndInDirSep(nDir+1, zBuf) ){
-    tdsqlite3_free(zBuf);
-    OSTRACE(("TEMP-FILENAME rc=SQLITE_ERROR\n"));
-    return winLogError(SQLITE_ERROR, 0, "winGetTempname4", 0);
-  }
-
-  /*
-  ** Check that the output buffer is large enough for the temporary file
-  ** name in the following format:
-  **
-  **   "<temporary_directory>/etilqs_XXXXXXXXXXXXXXX\0\0"
-  **
-  ** If not, return SQLITE_ERROR.  The number 17 is used here in order to
-  ** account for the space used by the 15 character random suffix and the
-  ** two trailing NUL characters.  The final directory separator character
-  ** has already added if it was not already present.
-  */
-  nLen = tdsqlite3Strlen30(zBuf);
-  if( (nLen + nPre + 17) > nBuf ){
-    tdsqlite3_free(zBuf);
-    OSTRACE(("TEMP-FILENAME rc=SQLITE_ERROR\n"));
-    return winLogError(SQLITE_ERROR, 0, "winGetTempname5", 0);
-  }
-
-  tdsqlite3_snprintf(nBuf-16-nLen, zBuf+nLen, SQLITE_TEMP_FILE_PREFIX);
-
-  j = tdsqlite3Strlen30(zBuf);
-  tdsqlite3_randomness(15, &zBuf[j]);
-  for(i=0; i<15; i++, j++){
-    zBuf[j] = (char)zChars[ ((unsigned char)zBuf[j])%(sizeof(zChars)-1) ];
-  }
-  zBuf[j] = 0;
-  zBuf[j+1] = 0;
-  *pzBuf = zBuf;
-
-  OSTRACE(("TEMP-FILENAME name=%s, rc=SQLITE_OK\n", zBuf));
-  return SQLITE_OK;
-}
-
-/*
-** Return TRUE if the named file is really a directory.  Return false if
-** it is something other than a directory, or if there is any kind of memory
-** allocation failure.
-*/
-static int winIsDir(const void *zConverted){
-  DWORD attr;
-  int rc = 0;
-  DWORD lastErrno;
-
-  if( osIsNT() ){
-    int cnt = 0;
-    WIN32_FILE_ATTRIBUTE_DATA sAttrData;
-    memset(&sAttrData, 0, sizeof(sAttrData));
-    while( !(rc = osGetFileAttributesExW((LPCWSTR)zConverted,
-                             GetFileExInfoStandard,
-                             &sAttrData)) && winRetryIoerr(&cnt, &lastErrno) ){}
-    if( !rc ){
-      return 0; /* Invalid name? */
-    }
-    attr = sAttrData.dwFileAttributes;
-#if SQLITE_OS_WINCE==0
-  }else{
-    attr = osGetFileAttributesA((char*)zConverted);
-#endif
-  }
-  return (attr!=INVALID_FILE_ATTRIBUTES) && (attr&FILE_ATTRIBUTE_DIRECTORY);
-}
-
-/* forward reference */
-static int winAccess(
-  tdsqlite3_vfs *pVfs,         /* Not used on win32 */
-  const char *zFilename,     /* Name of file to check */
-  int flags,                 /* Type of test to make on this file */
-  int *pResOut               /* OUT: Result */
-);
-
-/*
-** Open a file.
-*/
-static int winOpen(
-  tdsqlite3_vfs *pVfs,        /* Used to get maximum path length and AppData */
-  const char *zName,        /* Name of the file (UTF-8) */
-  tdsqlite3_file *id,         /* Write the SQLite file handle here */
-  int flags,                /* Open mode flags */
-  int *pOutFlags            /* Status return flags */
-){
-  HANDLE h;
-  DWORD lastErrno = 0;
-  DWORD dwDesiredAccess;
-  DWORD dwShareMode;
-  DWORD dwCreationDisposition;
-  DWORD dwFlagsAndAttributes = 0;
-#if SQLITE_OS_WINCE
-  int isTemp = 0;
-#endif
-  winVfsAppData *pAppData;
-  winFile *pFile = (winFile*)id;
-  void *zConverted;              /* Filename in OS encoding */
-  const char *zUtf8Name = zName; /* Filename in UTF-8 encoding */
-  int cnt = 0;
-
-  /* If argument zPath is a NULL pointer, this function is required to open
-  ** a temporary file. Use this buffer to store the file name in.
-  */
-  char *zTmpname = 0; /* For temporary filename, if necessary. */
-
-  int rc = SQLITE_OK;            /* Function Return Code */
-#if !defined(NDEBUG) || SQLITE_OS_WINCE
-  int eType = flags&0xFFFFFF00;  /* Type of file to open */
-#endif
-
-  int isExclusive  = (flags & SQLITE_OPEN_EXCLUSIVE);
-  int isDelete     = (flags & SQLITE_OPEN_DELETEONCLOSE);
-  int isCreate     = (flags & SQLITE_OPEN_CREATE);
-  int isReadonly   = (flags & SQLITE_OPEN_READONLY);
-  int isReadWrite  = (flags & SQLITE_OPEN_READWRITE);
-
-#ifndef NDEBUG
-  int isOpenJournal = (isCreate && (
-        eType==SQLITE_OPEN_MASTER_JOURNAL
-     || eType==SQLITE_OPEN_MAIN_JOURNAL
-     || eType==SQLITE_OPEN_WAL
-  ));
-#endif
-
-  OSTRACE(("OPEN name=%s, pFile=%p, flags=%x, pOutFlags=%p\n",
-           zUtf8Name, id, flags, pOutFlags));
-
-  /* Check the following statements are true:
-  **
-  **   (a) Exactly one of the READWRITE and READONLY flags must be set, and
-  **   (b) if CREATE is set, then READWRITE must also be set, and
-  **   (c) if EXCLUSIVE is set, then CREATE must also be set.
-  **   (d) if DELETEONCLOSE is set, then CREATE must also be set.
-  */
-  assert((isReadonly==0 || isReadWrite==0) && (isReadWrite || isReadonly));
-  assert(isCreate==0 || isReadWrite);
-  assert(isExclusive==0 || isCreate);
-  assert(isDelete==0 || isCreate);
-
-  /* The main DB, main journal, WAL file and master journal are never
-  ** automatically deleted. Nor are they ever temporary files.  */
-  assert( (!isDelete && zName) || eType!=SQLITE_OPEN_MAIN_DB );
-  assert( (!isDelete && zName) || eType!=SQLITE_OPEN_MAIN_JOURNAL );
-  assert( (!isDelete && zName) || eType!=SQLITE_OPEN_MASTER_JOURNAL );
-  assert( (!isDelete && zName) || eType!=SQLITE_OPEN_WAL );
-
-  /* Assert that the upper layer has set one of the "file-type" flags. */
-  assert( eType==SQLITE_OPEN_MAIN_DB      || eType==SQLITE_OPEN_TEMP_DB
-       || eType==SQLITE_OPEN_MAIN_JOURNAL || eType==SQLITE_OPEN_TEMP_JOURNAL
-       || eType==SQLITE_OPEN_SUBJOURNAL   || eType==SQLITE_OPEN_MASTER_JOURNAL
-       || eType==SQLITE_OPEN_TRANSIENT_DB || eType==SQLITE_OPEN_WAL
-  );
-
-  assert( pFile!=0 );
-  memset(pFile, 0, sizeof(winFile));
-  pFile->h = INVALID_HANDLE_VALUE;
-
-#if SQLITE_OS_WINRT
-  if( !zUtf8Name && !tdsqlite3_temp_directory ){
-    tdsqlite3_log(SQLITE_ERROR,
-        "tdsqlite3_temp_directory variable should be set for WinRT");
-  }
-#endif
-
-  /* If the second argument to this function is NULL, generate a
-  ** temporary file name to use
-  */
-  if( !zUtf8Name ){
-    assert( isDelete && !isOpenJournal );
-    rc = winGetTempname(pVfs, &zTmpname);
-    if( rc!=SQLITE_OK ){
-      OSTRACE(("OPEN name=%s, rc=%s", zUtf8Name, tdsqlite3ErrName(rc)));
-      return rc;
-    }
-    zUtf8Name = zTmpname;
-  }
-
-  /* Database filenames are double-zero terminated if they are not
-  ** URIs with parameters.  Hence, they can always be passed into
-  ** tdsqlite3_uri_parameter().
-  */
-  assert( (eType!=SQLITE_OPEN_MAIN_DB) || (flags & SQLITE_OPEN_URI) ||
-       zUtf8Name[tdsqlite3Strlen30(zUtf8Name)+1]==0 );
-
-  /* Convert the filename to the system encoding. */
-  zConverted = winConvertFromUtf8Filename(zUtf8Name);
-  if( zConverted==0 ){
-    tdsqlite3_free(zTmpname);
-    OSTRACE(("OPEN name=%s, rc=SQLITE_IOERR_NOMEM", zUtf8Name));
-    return SQLITE_IOERR_NOMEM_BKPT;
-  }
-
-  if( winIsDir(zConverted) ){
-    tdsqlite3_free(zConverted);
-    tdsqlite3_free(zTmpname);
-    OSTRACE(("OPEN name=%s, rc=SQLITE_CANTOPEN_ISDIR", zUtf8Name));
-    return SQLITE_CANTOPEN_ISDIR;
-  }
-
-  if( isReadWrite ){
-    dwDesiredAccess = GENERIC_READ | GENERIC_WRITE;
-  }else{
-    dwDesiredAccess = GENERIC_READ;
-  }
-
-  /* SQLITE_OPEN_EXCLUSIVE is used to make sure that a new file is
-  ** created. SQLite doesn't use it to indicate "exclusive access"
-  ** as it is usually understood.
-  */
-  if( isExclusive ){
-    /* Creates a new file, only if it does not already exist. */
-    /* If the file exists, it fails. */
-    dwCreationDisposition = CREATE_NEW;
-  }else if( isCreate ){
-    /* Open existing file, or create if it doesn't exist */
-    dwCreationDisposition = OPEN_ALWAYS;
-  }else{
-    /* Opens a file, only if it exists. */
-    dwCreationDisposition = OPEN_EXISTING;
-  }
-
-  dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
-
-  // TDLib: fix for TDLib. We will delete an opened database if it is corrupted
-  dwShareMode |= FILE_SHARE_DELETE;
-
-  if( isDelete ){
-#if SQLITE_OS_WINCE
-    dwFlagsAndAttributes = FILE_ATTRIBUTE_HIDDEN;
-    isTemp = 1;
-#else
-    dwFlagsAndAttributes = FILE_ATTRIBUTE_TEMPORARY
-                               | FILE_ATTRIBUTE_HIDDEN
-                               | FILE_FLAG_DELETE_ON_CLOSE;
-#endif
-  }else{
-    dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL;
-  }
-  /* Reports from the internet are that performance is always
-  ** better if FILE_FLAG_RANDOM_ACCESS is used.  Ticket #2699. */
-#if SQLITE_OS_WINCE
-  dwFlagsAndAttributes |= FILE_FLAG_RANDOM_ACCESS;
-#endif
-
-  if( osIsNT() ){
-#if SQLITE_OS_WINRT
-    CREATEFILE2_EXTENDED_PARAMETERS extendedParameters;
-    extendedParameters.dwSize = sizeof(CREATEFILE2_EXTENDED_PARAMETERS);
-    extendedParameters.dwFileAttributes =
-            dwFlagsAndAttributes & FILE_ATTRIBUTE_MASK;
-    extendedParameters.dwFileFlags = dwFlagsAndAttributes & FILE_FLAG_MASK;
-    extendedParameters.dwSecurityQosFlags = SECURITY_ANONYMOUS;
-    extendedParameters.lpSecurityAttributes = NULL;
-    extendedParameters.hTemplateFile = NULL;
-    do{
-      h = osCreateFile2((LPCWSTR)zConverted,
-                        dwDesiredAccess,
-                        dwShareMode,
-                        dwCreationDisposition,
-                        &extendedParameters);
-      if( h!=INVALID_HANDLE_VALUE ) break;
-      if( isReadWrite ){
-        int rc2, isRO = 0;
-        tdsqlite3BeginBenignMalloc();
-        rc2 = winAccess(pVfs, zName, SQLITE_ACCESS_READ, &isRO);
-        tdsqlite3EndBenignMalloc();
-        if( rc2==SQLITE_OK && isRO ) break;
-      }
-    }while( winRetryIoerr(&cnt, &lastErrno) );
-#else
-    do{
-      h = osCreateFileW((LPCWSTR)zConverted,
-                        dwDesiredAccess,
-                        dwShareMode, NULL,
-                        dwCreationDisposition,
-                        dwFlagsAndAttributes,
-                        NULL);
-      if( h!=INVALID_HANDLE_VALUE ) break;
-      if( isReadWrite ){
-        int rc2, isRO = 0;
-        tdsqlite3BeginBenignMalloc();
-        rc2 = winAccess(pVfs, zName, SQLITE_ACCESS_READ, &isRO);
-        tdsqlite3EndBenignMalloc();
-        if( rc2==SQLITE_OK && isRO ) break;
-      }
-    }while( winRetryIoerr(&cnt, &lastErrno) );
-#endif
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    do{
-      h = osCreateFileA((LPCSTR)zConverted,
-                        dwDesiredAccess,
-                        dwShareMode, NULL,
-                        dwCreationDisposition,
-                        dwFlagsAndAttributes,
-                        NULL);
-      if( h!=INVALID_HANDLE_VALUE ) break;
-      if( isReadWrite ){
-        int rc2, isRO = 0;
-        tdsqlite3BeginBenignMalloc();
-        rc2 = winAccess(pVfs, zName, SQLITE_ACCESS_READ, &isRO);
-        tdsqlite3EndBenignMalloc();
-        if( rc2==SQLITE_OK && isRO ) break;
-      }
-    }while( winRetryIoerr(&cnt, &lastErrno) );
-  }
-#endif
-  winLogIoerr(cnt, __LINE__);
-
-  OSTRACE(("OPEN file=%p, name=%s, access=%lx, rc=%s\n", h, zUtf8Name,
-           dwDesiredAccess, (h==INVALID_HANDLE_VALUE) ? "failed" : "ok"));
-
-  if( h==INVALID_HANDLE_VALUE ){
-    tdsqlite3_free(zConverted);
-    tdsqlite3_free(zTmpname);
-    if( isReadWrite && !isExclusive ){
-      return winOpen(pVfs, zName, id,
-         ((flags|SQLITE_OPEN_READONLY) &
-                     ~(SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE)),
-         pOutFlags);
-    }else{
-      pFile->lastErrno = lastErrno;
-      winLogError(SQLITE_CANTOPEN, pFile->lastErrno, "winOpen", zUtf8Name);
-      return SQLITE_CANTOPEN_BKPT;
-    }
-  }
-
-  if( pOutFlags ){
-    if( isReadWrite ){
-      *pOutFlags = SQLITE_OPEN_READWRITE;
-    }else{
-      *pOutFlags = SQLITE_OPEN_READONLY;
-    }
-  }
-
-  OSTRACE(("OPEN file=%p, name=%s, access=%lx, pOutFlags=%p, *pOutFlags=%d, "
-           "rc=%s\n", h, zUtf8Name, dwDesiredAccess, pOutFlags, pOutFlags ?
-           *pOutFlags : 0, (h==INVALID_HANDLE_VALUE) ? "failed" : "ok"));
-
-  pAppData = (winVfsAppData*)pVfs->pAppData;
-
-#if SQLITE_OS_WINCE
-  {
-    if( isReadWrite && eType==SQLITE_OPEN_MAIN_DB
-         && ((pAppData==NULL) || !pAppData->bNoLock)
-         && (rc = winceCreateLock(zName, pFile))!=SQLITE_OK
-    ){
-      osCloseHandle(h);
-      tdsqlite3_free(zConverted);
-      tdsqlite3_free(zTmpname);
-      OSTRACE(("OPEN-CE-LOCK name=%s, rc=%s\n", zName, tdsqlite3ErrName(rc)));
-      return rc;
-    }
-  }
-  if( isTemp ){
-    pFile->zDeleteOnClose = zConverted;
-  }else
-#endif
-  {
-    tdsqlite3_free(zConverted);
-  }
-
-  tdsqlite3_free(zTmpname);
-  pFile->pMethod = pAppData ? pAppData->pMethod : &winIoMethod;
-  pFile->pVfs = pVfs;
-  pFile->h = h;
-  if( isReadonly ){
-    pFile->ctrlFlags |= WINFILE_RDONLY;
-  }
-  if( tdsqlite3_uri_boolean(zName, "psow", SQLITE_POWERSAFE_OVERWRITE) ){
-    pFile->ctrlFlags |= WINFILE_PSOW;
-  }
-  pFile->lastErrno = NO_ERROR;
-  pFile->zPath = zName;
-#if SQLITE_MAX_MMAP_SIZE>0
-  pFile->hMap = NULL;
-  pFile->pMapRegion = 0;
-  pFile->mmapSize = 0;
-  pFile->mmapSizeMax = tdsqlite3GlobalConfig.szMmap;
-#endif
-
-  OpenCounter(+1);
-  return rc;
-}
-
-/*
-** Delete the named file.
-**
-** Note that Windows does not allow a file to be deleted if some other
-** process has it open.  Sometimes a virus scanner or indexing program
-** will open a journal file shortly after it is created in order to do
-** whatever it does.  While this other process is holding the
-** file open, we will be unable to delete it.  To work around this
-** problem, we delay 100 milliseconds and try to delete again.  Up
-** to MX_DELETION_ATTEMPTs deletion attempts are run before giving
-** up and returning an error.
-*/
-static int winDelete(
-  tdsqlite3_vfs *pVfs,          /* Not used on win32 */
-  const char *zFilename,      /* Name of file to delete */
-  int syncDir                 /* Not used on win32 */
-){
-  int cnt = 0;
-  int rc;
-  DWORD attr;
-  DWORD lastErrno = 0;
-  void *zConverted;
-  UNUSED_PARAMETER(pVfs);
-  UNUSED_PARAMETER(syncDir);
-
-  SimulateIOError(return SQLITE_IOERR_DELETE);
-  OSTRACE(("DELETE name=%s, syncDir=%d\n", zFilename, syncDir));
-
-  zConverted = winConvertFromUtf8Filename(zFilename);
-  if( zConverted==0 ){
-    OSTRACE(("DELETE name=%s, rc=SQLITE_IOERR_NOMEM\n", zFilename));
-    return SQLITE_IOERR_NOMEM_BKPT;
-  }
-  if( osIsNT() ){
-    do {
-#if SQLITE_OS_WINRT
-      WIN32_FILE_ATTRIBUTE_DATA sAttrData;
-      memset(&sAttrData, 0, sizeof(sAttrData));
-      if ( osGetFileAttributesExW(zConverted, GetFileExInfoStandard,
-                                  &sAttrData) ){
-        attr = sAttrData.dwFileAttributes;
-      }else{
-        lastErrno = osGetLastError();
-        if( lastErrno==ERROR_FILE_NOT_FOUND
-         || lastErrno==ERROR_PATH_NOT_FOUND ){
-          rc = SQLITE_IOERR_DELETE_NOENT; /* Already gone? */
-        }else{
-          rc = SQLITE_ERROR;
-        }
-        break;
-      }
-#else
-      attr = osGetFileAttributesW(zConverted);
-#endif
-      if ( attr==INVALID_FILE_ATTRIBUTES ){
-        lastErrno = osGetLastError();
-        if( lastErrno==ERROR_FILE_NOT_FOUND
-         || lastErrno==ERROR_PATH_NOT_FOUND ){
-          rc = SQLITE_IOERR_DELETE_NOENT; /* Already gone? */
-        }else{
-          rc = SQLITE_ERROR;
-        }
-        break;
-      }
-      if ( attr&FILE_ATTRIBUTE_DIRECTORY ){
-        rc = SQLITE_ERROR; /* Files only. */
-        break;
-      }
-      if ( osDeleteFileW(zConverted) ){
-        rc = SQLITE_OK; /* Deleted OK. */
-        break;
-      }
-      if ( !winRetryIoerr(&cnt, &lastErrno) ){
-        rc = SQLITE_ERROR; /* No more retries. */
-        break;
-      }
-    } while(1);
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    do {
-      attr = osGetFileAttributesA(zConverted);
-      if ( attr==INVALID_FILE_ATTRIBUTES ){
-        lastErrno = osGetLastError();
-        if( lastErrno==ERROR_FILE_NOT_FOUND
-         || lastErrno==ERROR_PATH_NOT_FOUND ){
-          rc = SQLITE_IOERR_DELETE_NOENT; /* Already gone? */
-        }else{
-          rc = SQLITE_ERROR;
-        }
-        break;
-      }
-      if ( attr&FILE_ATTRIBUTE_DIRECTORY ){
-        rc = SQLITE_ERROR; /* Files only. */
-        break;
-      }
-      if ( osDeleteFileA(zConverted) ){
-        rc = SQLITE_OK; /* Deleted OK. */
-        break;
-      }
-      if ( !winRetryIoerr(&cnt, &lastErrno) ){
-        rc = SQLITE_ERROR; /* No more retries. */
-        break;
-      }
-    } while(1);
-  }
-#endif
-  if( rc && rc!=SQLITE_IOERR_DELETE_NOENT ){
-    rc = winLogError(SQLITE_IOERR_DELETE, lastErrno, "winDelete", zFilename);
-  }else{
-    winLogIoerr(cnt, __LINE__);
-  }
-  tdsqlite3_free(zConverted);
-  OSTRACE(("DELETE name=%s, rc=%s\n", zFilename, tdsqlite3ErrName(rc)));
-  return rc;
-}
-
-/*
-** Check the existence and status of a file.
-*/
-static int winAccess(
-  tdsqlite3_vfs *pVfs,         /* Not used on win32 */
-  const char *zFilename,     /* Name of file to check */
-  int flags,                 /* Type of test to make on this file */
-  int *pResOut               /* OUT: Result */
-){
-  DWORD attr;
-  int rc = 0;
-  DWORD lastErrno = 0;
-  void *zConverted;
-  UNUSED_PARAMETER(pVfs);
-
-  SimulateIOError( return SQLITE_IOERR_ACCESS; );
-  OSTRACE(("ACCESS name=%s, flags=%x, pResOut=%p\n",
-           zFilename, flags, pResOut));
-
-  zConverted = winConvertFromUtf8Filename(zFilename);
-  if( zConverted==0 ){
-    OSTRACE(("ACCESS name=%s, rc=SQLITE_IOERR_NOMEM\n", zFilename));
-    return SQLITE_IOERR_NOMEM_BKPT;
-  }
-  if( osIsNT() ){
-    int cnt = 0;
-    WIN32_FILE_ATTRIBUTE_DATA sAttrData;
-    memset(&sAttrData, 0, sizeof(sAttrData));
-    while( !(rc = osGetFileAttributesExW((LPCWSTR)zConverted,
-                             GetFileExInfoStandard,
-                             &sAttrData)) && winRetryIoerr(&cnt, &lastErrno) ){}
-    if( rc ){
-      /* For an SQLITE_ACCESS_EXISTS query, treat a zero-length file
-      ** as if it does not exist.
-      */
-      if(    flags==SQLITE_ACCESS_EXISTS
-          && sAttrData.nFileSizeHigh==0
-          && sAttrData.nFileSizeLow==0 ){
-        attr = INVALID_FILE_ATTRIBUTES;
-      }else{
-        attr = sAttrData.dwFileAttributes;
-      }
-    }else{
-      winLogIoerr(cnt, __LINE__);
-      if( lastErrno!=ERROR_FILE_NOT_FOUND && lastErrno!=ERROR_PATH_NOT_FOUND ){
-        tdsqlite3_free(zConverted);
-        return winLogError(SQLITE_IOERR_ACCESS, lastErrno, "winAccess",
-                           zFilename);
-      }else{
-        attr = INVALID_FILE_ATTRIBUTES;
-      }
-    }
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    attr = osGetFileAttributesA((char*)zConverted);
-  }
-#endif
-  tdsqlite3_free(zConverted);
-  switch( flags ){
-    case SQLITE_ACCESS_READ:
-    case SQLITE_ACCESS_EXISTS:
-      rc = attr!=INVALID_FILE_ATTRIBUTES;
-      break;
-    case SQLITE_ACCESS_READWRITE:
-      rc = attr!=INVALID_FILE_ATTRIBUTES &&
-             (attr & FILE_ATTRIBUTE_READONLY)==0;
-      break;
-    default:
-      assert(!"Invalid flags argument");
-  }
-  *pResOut = rc;
-  OSTRACE(("ACCESS name=%s, pResOut=%p, *pResOut=%d, rc=SQLITE_OK\n",
-           zFilename, pResOut, *pResOut));
-  return SQLITE_OK;
-}
-
-/*
-** Returns non-zero if the specified path name starts with a drive letter
-** followed by a colon character.
-*/
-static BOOL winIsDriveLetterAndColon(
-  const char *zPathname
-){
-  return ( tdsqlite3Isalpha(zPathname[0]) && zPathname[1]==':' );
-}
-
-/*
-** Returns non-zero if the specified path name should be used verbatim.  If
-** non-zero is returned from this function, the calling function must simply
-** use the provided path name verbatim -OR- resolve it into a full path name
-** using the GetFullPathName Win32 API function (if available).
-*/
-static BOOL winIsVerbatimPathname(
-  const char *zPathname
-){
-  /*
-  ** If the path name starts with a forward slash or a backslash, it is either
-  ** a legal UNC name, a volume relative path, or an absolute path name in the
-  ** "Unix" format on Windows.  There is no easy way to differentiate between
-  ** the final two cases; therefore, we return the safer return value of TRUE
-  ** so that callers of this function will simply use it verbatim.
-  */
-  if ( winIsDirSep(zPathname[0]) ){
-    return TRUE;
-  }
-
-  /*
-  ** If the path name starts with a letter and a colon it is either a volume
-  ** relative path or an absolute path.  Callers of this function must not
-  ** attempt to treat it as a relative path name (i.e. they should simply use
-  ** it verbatim).
-  */
-  if ( winIsDriveLetterAndColon(zPathname) ){
-    return TRUE;
-  }
-
-  /*
-  ** If we get to this point, the path name should almost certainly be a purely
-  ** relative one (i.e. not a UNC name, not absolute, and not volume relative).
-  */
-  return FALSE;
-}
-
-/*
-** Turn a relative pathname into a full pathname.  Write the full
-** pathname into zOut[].  zOut[] will be at least pVfs->mxPathname
-** bytes in size.
-*/
-static int winFullPathname(
-  tdsqlite3_vfs *pVfs,            /* Pointer to vfs object */
-  const char *zRelative,        /* Possibly relative input path */
-  int nFull,                    /* Size of output buffer in bytes */
-  char *zFull                   /* Output buffer */
-){
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && !defined(__CYGWIN__)
-  DWORD nByte;
-  void *zConverted;
-  char *zOut;
-#endif
-
-  /* If this path name begins with "/X:", where "X" is any alphabetic
-  ** character, discard the initial "/" from the pathname.
-  */
-  if( zRelative[0]=='/' && winIsDriveLetterAndColon(zRelative+1) ){
-    zRelative++;
-  }
-
-#if defined(__CYGWIN__)
-  SimulateIOError( return SQLITE_ERROR );
-  UNUSED_PARAMETER(nFull);
-  assert( nFull>=pVfs->mxPathname );
-  if ( tdsqlite3_data_directory && !winIsVerbatimPathname(zRelative) ){
-    /*
-    ** NOTE: We are dealing with a relative path name and the data
-    **       directory has been set.  Therefore, use it as the basis
-    **       for converting the relative path name to an absolute
-    **       one by prepending the data directory and a slash.
-    */
-    char *zOut = tdsqlite3MallocZero( pVfs->mxPathname+1 );
-    if( !zOut ){
-      return SQLITE_IOERR_NOMEM_BKPT;
-    }
-    if( cygwin_conv_path(
-            (osIsNT() ? CCP_POSIX_TO_WIN_W : CCP_POSIX_TO_WIN_A) |
-            CCP_RELATIVE, zRelative, zOut, pVfs->mxPathname+1)<0 ){
-      tdsqlite3_free(zOut);
-      return winLogError(SQLITE_CANTOPEN_CONVPATH, (DWORD)errno,
-                         "winFullPathname1", zRelative);
-    }else{
-      char *zUtf8 = winConvertToUtf8Filename(zOut);
-      if( !zUtf8 ){
-        tdsqlite3_free(zOut);
-        return SQLITE_IOERR_NOMEM_BKPT;
-      }
-      tdsqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s%c%s",
-                       tdsqlite3_data_directory, winGetDirSep(), zUtf8);
-      tdsqlite3_free(zUtf8);
-      tdsqlite3_free(zOut);
-    }
-  }else{
-    char *zOut = tdsqlite3MallocZero( pVfs->mxPathname+1 );
-    if( !zOut ){
-      return SQLITE_IOERR_NOMEM_BKPT;
-    }
-    if( cygwin_conv_path(
-            (osIsNT() ? CCP_POSIX_TO_WIN_W : CCP_POSIX_TO_WIN_A),
-            zRelative, zOut, pVfs->mxPathname+1)<0 ){
-      tdsqlite3_free(zOut);
-      return winLogError(SQLITE_CANTOPEN_CONVPATH, (DWORD)errno,
-                         "winFullPathname2", zRelative);
-    }else{
-      char *zUtf8 = winConvertToUtf8Filename(zOut);
-      if( !zUtf8 ){
-        tdsqlite3_free(zOut);
-        return SQLITE_IOERR_NOMEM_BKPT;
-      }
-      tdsqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s", zUtf8);
-      tdsqlite3_free(zUtf8);
-      tdsqlite3_free(zOut);
-    }
-  }
-  return SQLITE_OK;
-#endif
-
-#if (SQLITE_OS_WINCE || SQLITE_OS_WINRT) && !defined(__CYGWIN__)
-  SimulateIOError( return SQLITE_ERROR );
-  /* WinCE has no concept of a relative pathname, or so I am told. */
-  /* WinRT has no way to convert a relative path to an absolute one. */
-  if ( tdsqlite3_data_directory && !winIsVerbatimPathname(zRelative) ){
-    /*
-    ** NOTE: We are dealing with a relative path name and the data
-    **       directory has been set.  Therefore, use it as the basis
-    **       for converting the relative path name to an absolute
-    **       one by prepending the data directory and a backslash.
-    */
-    tdsqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s%c%s",
-                     tdsqlite3_data_directory, winGetDirSep(), zRelative);
-  }else{
-    tdsqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s", zRelative);
-  }
-  return SQLITE_OK;
-#endif
-
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && !defined(__CYGWIN__)
-  /* It's odd to simulate an io-error here, but really this is just
-  ** using the io-error infrastructure to test that SQLite handles this
-  ** function failing. This function could fail if, for example, the
-  ** current working directory has been unlinked.
-  */
-  SimulateIOError( return SQLITE_ERROR );
-  if ( tdsqlite3_data_directory && !winIsVerbatimPathname(zRelative) ){
-    /*
-    ** NOTE: We are dealing with a relative path name and the data
-    **       directory has been set.  Therefore, use it as the basis
-    **       for converting the relative path name to an absolute
-    **       one by prepending the data directory and a backslash.
-    */
-    tdsqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s%c%s",
-                     tdsqlite3_data_directory, winGetDirSep(), zRelative);
-    return SQLITE_OK;
-  }
-  zConverted = winConvertFromUtf8Filename(zRelative);
-  if( zConverted==0 ){
-    return SQLITE_IOERR_NOMEM_BKPT;
-  }
-  if( osIsNT() ){
-    LPWSTR zTemp;
-    nByte = osGetFullPathNameW((LPCWSTR)zConverted, 0, 0, 0);
-    if( nByte==0 ){
-      tdsqlite3_free(zConverted);
-      return winLogError(SQLITE_CANTOPEN_FULLPATH, osGetLastError(),
-                         "winFullPathname1", zRelative);
-    }
-    nByte += 3;
-    zTemp = tdsqlite3MallocZero( nByte*sizeof(zTemp[0]) );
-    if( zTemp==0 ){
-      tdsqlite3_free(zConverted);
-      return SQLITE_IOERR_NOMEM_BKPT;
-    }
-    nByte = osGetFullPathNameW((LPCWSTR)zConverted, nByte, zTemp, 0);
-    if( nByte==0 ){
-      tdsqlite3_free(zConverted);
-      tdsqlite3_free(zTemp);
-      return winLogError(SQLITE_CANTOPEN_FULLPATH, osGetLastError(),
-                         "winFullPathname2", zRelative);
-    }
-    tdsqlite3_free(zConverted);
-    zOut = winUnicodeToUtf8(zTemp);
-    tdsqlite3_free(zTemp);
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    char *zTemp;
-    nByte = osGetFullPathNameA((char*)zConverted, 0, 0, 0);
-    if( nByte==0 ){
-      tdsqlite3_free(zConverted);
-      return winLogError(SQLITE_CANTOPEN_FULLPATH, osGetLastError(),
-                         "winFullPathname3", zRelative);
-    }
-    nByte += 3;
-    zTemp = tdsqlite3MallocZero( nByte*sizeof(zTemp[0]) );
-    if( zTemp==0 ){
-      tdsqlite3_free(zConverted);
-      return SQLITE_IOERR_NOMEM_BKPT;
-    }
-    nByte = osGetFullPathNameA((char*)zConverted, nByte, zTemp, 0);
-    if( nByte==0 ){
-      tdsqlite3_free(zConverted);
-      tdsqlite3_free(zTemp);
-      return winLogError(SQLITE_CANTOPEN_FULLPATH, osGetLastError(),
-                         "winFullPathname4", zRelative);
-    }
-    tdsqlite3_free(zConverted);
-    zOut = winMbcsToUtf8(zTemp, osAreFileApisANSI());
-    tdsqlite3_free(zTemp);
-  }
-#endif
-  if( zOut ){
-    tdsqlite3_snprintf(MIN(nFull, pVfs->mxPathname), zFull, "%s", zOut);
-    tdsqlite3_free(zOut);
-    return SQLITE_OK;
-  }else{
-    return SQLITE_IOERR_NOMEM_BKPT;
-  }
-#endif
-}
-
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-/*
-** Interfaces for opening a shared library, finding entry points
-** within the shared library, and closing the shared library.
-*/
-static void *winDlOpen(tdsqlite3_vfs *pVfs, const char *zFilename){
-  HANDLE h;
-#if defined(__CYGWIN__)
-  int nFull = pVfs->mxPathname+1;
-  char *zFull = tdsqlite3MallocZero( nFull );
-  void *zConverted = 0;
-  if( zFull==0 ){
-    OSTRACE(("DLOPEN name=%s, handle=%p\n", zFilename, (void*)0));
-    return 0;
-  }
-  if( winFullPathname(pVfs, zFilename, nFull, zFull)!=SQLITE_OK ){
-    tdsqlite3_free(zFull);
-    OSTRACE(("DLOPEN name=%s, handle=%p\n", zFilename, (void*)0));
-    return 0;
-  }
-  zConverted = winConvertFromUtf8Filename(zFull);
-  tdsqlite3_free(zFull);
-#else
-  void *zConverted = winConvertFromUtf8Filename(zFilename);
-  UNUSED_PARAMETER(pVfs);
-#endif
-  if( zConverted==0 ){
-    OSTRACE(("DLOPEN name=%s, handle=%p\n", zFilename, (void*)0));
-    return 0;
-  }
-  if( osIsNT() ){
-#if SQLITE_OS_WINRT
-    h = osLoadPackagedLibrary((LPCWSTR)zConverted, 0);
-#else
-    h = osLoadLibraryW((LPCWSTR)zConverted);
-#endif
-  }
-#ifdef SQLITE_WIN32_HAS_ANSI
-  else{
-    h = osLoadLibraryA((char*)zConverted);
-  }
-#endif
-  OSTRACE(("DLOPEN name=%s, handle=%p\n", zFilename, (void*)h));
-  tdsqlite3_free(zConverted);
-  return (void*)h;
-}
-static void winDlError(tdsqlite3_vfs *pVfs, int nBuf, char *zBufOut){
-  UNUSED_PARAMETER(pVfs);
-  winGetLastErrorMsg(osGetLastError(), nBuf, zBufOut);
-}
-static void (*winDlSym(tdsqlite3_vfs *pVfs,void *pH,const char *zSym))(void){
-  FARPROC proc;
-  UNUSED_PARAMETER(pVfs);
-  proc = osGetProcAddressA((HANDLE)pH, zSym);
-  OSTRACE(("DLSYM handle=%p, symbol=%s, address=%p\n",
-           (void*)pH, zSym, (void*)proc));
-  return (void(*)(void))proc;
-}
-static void winDlClose(tdsqlite3_vfs *pVfs, void *pHandle){
-  UNUSED_PARAMETER(pVfs);
-  osFreeLibrary((HANDLE)pHandle);
-  OSTRACE(("DLCLOSE handle=%p\n", (void*)pHandle));
-}
-#else /* if SQLITE_OMIT_LOAD_EXTENSION is defined: */
-  #define winDlOpen  0
-  #define winDlError 0
-  #define winDlSym   0
-  #define winDlClose 0
-#endif
-
-/* State information for the randomness gatherer. */
-typedef struct EntropyGatherer EntropyGatherer;
-struct EntropyGatherer {
-  unsigned char *a;   /* Gather entropy into this buffer */
-  int na;             /* Size of a[] in bytes */
-  int i;              /* XOR next input into a[i] */
-  int nXor;           /* Number of XOR operations done */
-};
-
-#if !defined(SQLITE_TEST) && !defined(SQLITE_OMIT_RANDOMNESS)
-/* Mix sz bytes of entropy into p. */
-static void xorMemory(EntropyGatherer *p, unsigned char *x, int sz){
-  int j, k;
-  for(j=0, k=p->i; j<sz; j++){
-    p->a[k++] ^= x[j];
-    if( k>=p->na ) k = 0;
-  }
-  p->i = k;
-  p->nXor += sz;
-}
-#endif /* !defined(SQLITE_TEST) && !defined(SQLITE_OMIT_RANDOMNESS) */
-
-/*
-** Write up to nBuf bytes of randomness into zBuf.
-*/
-static int winRandomness(tdsqlite3_vfs *pVfs, int nBuf, char *zBuf){
-#if defined(SQLITE_TEST) || defined(SQLITE_OMIT_RANDOMNESS)
-  UNUSED_PARAMETER(pVfs);
-  memset(zBuf, 0, nBuf);
-  return nBuf;
-#else
-  EntropyGatherer e;
-  UNUSED_PARAMETER(pVfs);
-  memset(zBuf, 0, nBuf);
-  e.a = (unsigned char*)zBuf;
-  e.na = nBuf;
-  e.nXor = 0;
-  e.i = 0;
-  {
-    SYSTEMTIME x;
-    osGetSystemTime(&x);
-    xorMemory(&e, (unsigned char*)&x, sizeof(SYSTEMTIME));
-  }
-  {
-    DWORD pid = osGetCurrentProcessId();
-    xorMemory(&e, (unsigned char*)&pid, sizeof(DWORD));
-  }
-#if SQLITE_OS_WINRT
-  {
-    ULONGLONG cnt = osGetTickCount64();
-    xorMemory(&e, (unsigned char*)&cnt, sizeof(ULONGLONG));
-  }
-#else
-  {
-    DWORD cnt = osGetTickCount();
-    xorMemory(&e, (unsigned char*)&cnt, sizeof(DWORD));
-  }
-#endif /* SQLITE_OS_WINRT */
-  {
-    LARGE_INTEGER i;
-    osQueryPerformanceCounter(&i);
-    xorMemory(&e, (unsigned char*)&i, sizeof(LARGE_INTEGER));
-  }
-#if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && SQLITE_WIN32_USE_UUID
-  {
-    UUID id;
-    memset(&id, 0, sizeof(UUID));
-    osUuidCreate(&id);
-    xorMemory(&e, (unsigned char*)&id, sizeof(UUID));
-    memset(&id, 0, sizeof(UUID));
-    osUuidCreateSequential(&id);
-    xorMemory(&e, (unsigned char*)&id, sizeof(UUID));
-  }
-#endif /* !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && SQLITE_WIN32_USE_UUID */
-  return e.nXor>nBuf ? nBuf : e.nXor;
-#endif /* defined(SQLITE_TEST) || defined(SQLITE_OMIT_RANDOMNESS) */
-}
-
-
-/*
-** Sleep for a little while.  Return the amount of time slept.
-*/
-static int winSleep(tdsqlite3_vfs *pVfs, int microsec){
-  tdsqlite3_win32_sleep((microsec+999)/1000);
-  UNUSED_PARAMETER(pVfs);
-  return ((microsec+999)/1000)*1000;
-}
-
-/*
-** The following variable, if set to a non-zero value, is interpreted as
-** the number of seconds since 1970 and is used to set the result of
-** tdsqlite3OsCurrentTime() during testing.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_current_time = 0;  /* Fake system time in seconds since 1970. */
-#endif
-
-/*
-** Find the current time (in Universal Coordinated Time).  Write into *piNow
-** the current time and date as a Julian Day number times 86_400_000.  In
-** other words, write into *piNow the number of milliseconds since the Julian
-** epoch of noon in Greenwich on November 24, 4714 B.C according to the
-** proleptic Gregorian calendar.
-**
-** On success, return SQLITE_OK.  Return SQLITE_ERROR if the time and date
-** cannot be found.
-*/
-static int winCurrentTimeInt64(tdsqlite3_vfs *pVfs, tdsqlite3_int64 *piNow){
-  /* FILETIME structure is a 64-bit value representing the number of
-     100-nanosecond intervals since January 1, 1601 (= JD 2305813.5).
-  */
-  FILETIME ft;
-  static const tdsqlite3_int64 winFiletimeEpoch = 23058135*(tdsqlite3_int64)8640000;
-#ifdef SQLITE_TEST
-  static const tdsqlite3_int64 unixEpoch = 24405875*(tdsqlite3_int64)8640000;
-#endif
-  /* 2^32 - to avoid use of LL and warnings in gcc */
-  static const tdsqlite3_int64 max32BitValue =
-      (tdsqlite3_int64)2000000000 + (tdsqlite3_int64)2000000000 +
-      (tdsqlite3_int64)294967296;
-
-#if SQLITE_OS_WINCE
-  SYSTEMTIME time;
-  osGetSystemTime(&time);
-  /* if SystemTimeToFileTime() fails, it returns zero. */
-  if (!osSystemTimeToFileTime(&time,&ft)){
-    return SQLITE_ERROR;
-  }
-#else
-  osGetSystemTimeAsFileTime( &ft );
-#endif
-
-  *piNow = winFiletimeEpoch +
-            ((((tdsqlite3_int64)ft.dwHighDateTime)*max32BitValue) +
-               (tdsqlite3_int64)ft.dwLowDateTime)/(tdsqlite3_int64)10000;
-
-#ifdef SQLITE_TEST
-  if( tdsqlite3_current_time ){
-    *piNow = 1000*(tdsqlite3_int64)tdsqlite3_current_time + unixEpoch;
-  }
-#endif
-  UNUSED_PARAMETER(pVfs);
-  return SQLITE_OK;
-}
-
-/*
-** Find the current time (in Universal Coordinated Time).  Write the
-** current time and date as a Julian Day number into *prNow and
-** return 0.  Return 1 if the time and date cannot be found.
-*/
-static int winCurrentTime(tdsqlite3_vfs *pVfs, double *prNow){
-  int rc;
-  tdsqlite3_int64 i;
-  rc = winCurrentTimeInt64(pVfs, &i);
-  if( !rc ){
-    *prNow = i/86400000.0;
-  }
-  return rc;
-}
-
-/*
-** The idea is that this function works like a combination of
-** GetLastError() and FormatMessage() on Windows (or errno and
-** strerror_r() on Unix). After an error is returned by an OS
-** function, SQLite calls this function with zBuf pointing to
-** a buffer of nBuf bytes. The OS layer should populate the
-** buffer with a nul-terminated UTF-8 encoded error message
-** describing the last IO error to have occurred within the calling
-** thread.
-**
-** If the error message is too large for the supplied buffer,
-** it should be truncated. The return value of xGetLastError
-** is zero if the error message fits in the buffer, or non-zero
-** otherwise (if the message was truncated). If non-zero is returned,
-** then it is not necessary to include the nul-terminator character
-** in the output buffer.
-**
-** Not supplying an error message will have no adverse effect
-** on SQLite. It is fine to have an implementation that never
-** returns an error message:
-**
-**   int xGetLastError(tdsqlite3_vfs *pVfs, int nBuf, char *zBuf){
-**     assert(zBuf[0]=='\0');
-**     return 0;
-**   }
-**
-** However if an error message is supplied, it will be incorporated
-** by sqlite into the error message available to the user using
-** tdsqlite3_errmsg(), possibly making IO errors easier to debug.
-*/
-static int winGetLastError(tdsqlite3_vfs *pVfs, int nBuf, char *zBuf){
-  DWORD e = osGetLastError();
-  UNUSED_PARAMETER(pVfs);
-  if( nBuf>0 ) winGetLastErrorMsg(e, nBuf, zBuf);
-  return e;
-}
-
-/*
-** Initialize and deinitialize the operating system interface.
-*/
-SQLITE_API int tdsqlite3_os_init(void){
-  static tdsqlite3_vfs winVfs = {
-    3,                     /* iVersion */
-    sizeof(winFile),       /* szOsFile */
-    SQLITE_WIN32_MAX_PATH_BYTES, /* mxPathname */
-    0,                     /* pNext */
-    "win32",               /* zName */
-    &winAppData,           /* pAppData */
-    winOpen,               /* xOpen */
-    winDelete,             /* xDelete */
-    winAccess,             /* xAccess */
-    winFullPathname,       /* xFullPathname */
-    winDlOpen,             /* xDlOpen */
-    winDlError,            /* xDlError */
-    winDlSym,              /* xDlSym */
-    winDlClose,            /* xDlClose */
-    winRandomness,         /* xRandomness */
-    winSleep,              /* xSleep */
-    winCurrentTime,        /* xCurrentTime */
-    winGetLastError,       /* xGetLastError */
-    winCurrentTimeInt64,   /* xCurrentTimeInt64 */
-    winSetSystemCall,      /* xSetSystemCall */
-    winGetSystemCall,      /* xGetSystemCall */
-    winNextSystemCall,     /* xNextSystemCall */
-  };
-#if defined(SQLITE_WIN32_HAS_WIDE)
-  static tdsqlite3_vfs winLongPathVfs = {
-    3,                     /* iVersion */
-    sizeof(winFile),       /* szOsFile */
-    SQLITE_WINNT_MAX_PATH_BYTES, /* mxPathname */
-    0,                     /* pNext */
-    "win32-longpath",      /* zName */
-    &winAppData,           /* pAppData */
-    winOpen,               /* xOpen */
-    winDelete,             /* xDelete */
-    winAccess,             /* xAccess */
-    winFullPathname,       /* xFullPathname */
-    winDlOpen,             /* xDlOpen */
-    winDlError,            /* xDlError */
-    winDlSym,              /* xDlSym */
-    winDlClose,            /* xDlClose */
-    winRandomness,         /* xRandomness */
-    winSleep,              /* xSleep */
-    winCurrentTime,        /* xCurrentTime */
-    winGetLastError,       /* xGetLastError */
-    winCurrentTimeInt64,   /* xCurrentTimeInt64 */
-    winSetSystemCall,      /* xSetSystemCall */
-    winGetSystemCall,      /* xGetSystemCall */
-    winNextSystemCall,     /* xNextSystemCall */
-  };
-#endif
-  static tdsqlite3_vfs winNolockVfs = {
-    3,                     /* iVersion */
-    sizeof(winFile),       /* szOsFile */
-    SQLITE_WIN32_MAX_PATH_BYTES, /* mxPathname */
-    0,                     /* pNext */
-    "win32-none",          /* zName */
-    &winNolockAppData,     /* pAppData */
-    winOpen,               /* xOpen */
-    winDelete,             /* xDelete */
-    winAccess,             /* xAccess */
-    winFullPathname,       /* xFullPathname */
-    winDlOpen,             /* xDlOpen */
-    winDlError,            /* xDlError */
-    winDlSym,              /* xDlSym */
-    winDlClose,            /* xDlClose */
-    winRandomness,         /* xRandomness */
-    winSleep,              /* xSleep */
-    winCurrentTime,        /* xCurrentTime */
-    winGetLastError,       /* xGetLastError */
-    winCurrentTimeInt64,   /* xCurrentTimeInt64 */
-    winSetSystemCall,      /* xSetSystemCall */
-    winGetSystemCall,      /* xGetSystemCall */
-    winNextSystemCall,     /* xNextSystemCall */
-  };
-#if defined(SQLITE_WIN32_HAS_WIDE)
-  static tdsqlite3_vfs winLongPathNolockVfs = {
-    3,                     /* iVersion */
-    sizeof(winFile),       /* szOsFile */
-    SQLITE_WINNT_MAX_PATH_BYTES, /* mxPathname */
-    0,                     /* pNext */
-    "win32-longpath-none", /* zName */
-    &winNolockAppData,     /* pAppData */
-    winOpen,               /* xOpen */
-    winDelete,             /* xDelete */
-    winAccess,             /* xAccess */
-    winFullPathname,       /* xFullPathname */
-    winDlOpen,             /* xDlOpen */
-    winDlError,            /* xDlError */
-    winDlSym,              /* xDlSym */
-    winDlClose,            /* xDlClose */
-    winRandomness,         /* xRandomness */
-    winSleep,              /* xSleep */
-    winCurrentTime,        /* xCurrentTime */
-    winGetLastError,       /* xGetLastError */
-    winCurrentTimeInt64,   /* xCurrentTimeInt64 */
-    winSetSystemCall,      /* xSetSystemCall */
-    winGetSystemCall,      /* xGetSystemCall */
-    winNextSystemCall,     /* xNextSystemCall */
-  };
-#endif
-
-  /* Double-check that the aSyscall[] array has been constructed
-  ** correctly.  See ticket [bb3a86e890c8e96ab] */
-  assert( ArraySize(aSyscall)==80 );
-
-  /* get memory map allocation granularity */
-  memset(&winSysInfo, 0, sizeof(SYSTEM_INFO));
-#if SQLITE_OS_WINRT
-  osGetNativeSystemInfo(&winSysInfo);
-#else
-  osGetSystemInfo(&winSysInfo);
-#endif
-  assert( winSysInfo.dwAllocationGranularity>0 );
-  assert( winSysInfo.dwPageSize>0 );
-
-  tdsqlite3_vfs_register(&winVfs, 1);
-
-#if defined(SQLITE_WIN32_HAS_WIDE)
-  tdsqlite3_vfs_register(&winLongPathVfs, 0);
-#endif
-
-  tdsqlite3_vfs_register(&winNolockVfs, 0);
-
-#if defined(SQLITE_WIN32_HAS_WIDE)
-  tdsqlite3_vfs_register(&winLongPathNolockVfs, 0);
-#endif
-
-#ifndef SQLITE_OMIT_WAL
-  winBigLock = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_VFS1);
-#endif
-
-  return SQLITE_OK;
-}
-
-SQLITE_API int tdsqlite3_os_end(void){
-#if SQLITE_OS_WINRT
-  if( sleepObj!=NULL ){
-    osCloseHandle(sleepObj);
-    sleepObj = NULL;
-  }
-#endif
-
-#ifndef SQLITE_OMIT_WAL
-  winBigLock = 0;
-#endif
-
-  return SQLITE_OK;
-}
-
-#endif /* SQLITE_OS_WIN */
-
-/************** End of os_win.c **********************************************/
-/************** Begin file memdb.c *******************************************/
-/*
-** 2016-09-07
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file implements an in-memory VFS. A database is held as a contiguous
-** block of memory.
-**
-** This file also implements interface tdsqlite3_serialize() and
-** tdsqlite3_deserialize().
-*/
-/* #include "sqliteInt.h" */
-#ifdef SQLITE_ENABLE_DESERIALIZE
-
-/*
-** Forward declaration of objects used by this utility
-*/
-typedef struct tdsqlite3_vfs MemVfs;
-typedef struct MemFile MemFile;
-
-/* Access to a lower-level VFS that (might) implement dynamic loading,
-** access to randomness, etc.
-*/
-#define ORIGVFS(p) ((tdsqlite3_vfs*)((p)->pAppData))
-
-/* An open file */
-struct MemFile {
-  tdsqlite3_file base;              /* IO methods */
-  tdsqlite3_int64 sz;               /* Size of the file */
-  tdsqlite3_int64 szAlloc;          /* Space allocated to aData */
-  tdsqlite3_int64 szMax;            /* Maximum allowed size of the file */
-  unsigned char *aData;           /* content of the file */
-  int nMmap;                      /* Number of memory mapped pages */
-  unsigned mFlags;                /* Flags */
-  int eLock;                      /* Most recent lock against this file */
-};
-
-/*
-** Methods for MemFile
-*/
-static int memdbClose(tdsqlite3_file*);
-static int memdbRead(tdsqlite3_file*, void*, int iAmt, tdsqlite3_int64 iOfst);
-static int memdbWrite(tdsqlite3_file*,const void*,int iAmt, tdsqlite3_int64 iOfst);
-static int memdbTruncate(tdsqlite3_file*, tdsqlite3_int64 size);
-static int memdbSync(tdsqlite3_file*, int flags);
-static int memdbFileSize(tdsqlite3_file*, tdsqlite3_int64 *pSize);
-static int memdbLock(tdsqlite3_file*, int);
-/* static int memdbCheckReservedLock(tdsqlite3_file*, int *pResOut);// not used */
-static int memdbFileControl(tdsqlite3_file*, int op, void *pArg);
-/* static int memdbSectorSize(tdsqlite3_file*); // not used */
-static int memdbDeviceCharacteristics(tdsqlite3_file*);
-static int memdbFetch(tdsqlite3_file*, tdsqlite3_int64 iOfst, int iAmt, void **pp);
-static int memdbUnfetch(tdsqlite3_file*, tdsqlite3_int64 iOfst, void *p);
-
-/*
-** Methods for MemVfs
-*/
-static int memdbOpen(tdsqlite3_vfs*, const char *, tdsqlite3_file*, int , int *);
-/* static int memdbDelete(tdsqlite3_vfs*, const char *zName, int syncDir); */
-static int memdbAccess(tdsqlite3_vfs*, const char *zName, int flags, int *);
-static int memdbFullPathname(tdsqlite3_vfs*, const char *zName, int, char *zOut);
-static void *memdbDlOpen(tdsqlite3_vfs*, const char *zFilename);
-static void memdbDlError(tdsqlite3_vfs*, int nByte, char *zErrMsg);
-static void (*memdbDlSym(tdsqlite3_vfs *pVfs, void *p, const char*zSym))(void);
-static void memdbDlClose(tdsqlite3_vfs*, void*);
-static int memdbRandomness(tdsqlite3_vfs*, int nByte, char *zOut);
-static int memdbSleep(tdsqlite3_vfs*, int microseconds);
-/* static int memdbCurrentTime(tdsqlite3_vfs*, double*); */
-static int memdbGetLastError(tdsqlite3_vfs*, int, char *);
-static int memdbCurrentTimeInt64(tdsqlite3_vfs*, tdsqlite3_int64*);
-
-static tdsqlite3_vfs memdb_vfs = {
-  2,                           /* iVersion */
-  0,                           /* szOsFile (set when registered) */
-  1024,                        /* mxPathname */
-  0,                           /* pNext */
-  "memdb",                     /* zName */
-  0,                           /* pAppData (set when registered) */ 
-  memdbOpen,                   /* xOpen */
-  0, /* memdbDelete, */        /* xDelete */
-  memdbAccess,                 /* xAccess */
-  memdbFullPathname,           /* xFullPathname */
-  memdbDlOpen,                 /* xDlOpen */
-  memdbDlError,                /* xDlError */
-  memdbDlSym,                  /* xDlSym */
-  memdbDlClose,                /* xDlClose */
-  memdbRandomness,             /* xRandomness */
-  memdbSleep,                  /* xSleep */
-  0, /* memdbCurrentTime, */   /* xCurrentTime */
-  memdbGetLastError,           /* xGetLastError */
-  memdbCurrentTimeInt64        /* xCurrentTimeInt64 */
-};
-
-static const tdsqlite3_io_methods memdb_io_methods = {
-  3,                              /* iVersion */
-  memdbClose,                      /* xClose */
-  memdbRead,                       /* xRead */
-  memdbWrite,                      /* xWrite */
-  memdbTruncate,                   /* xTruncate */
-  memdbSync,                       /* xSync */
-  memdbFileSize,                   /* xFileSize */
-  memdbLock,                       /* xLock */
-  memdbLock,                       /* xUnlock - same as xLock in this case */ 
-  0, /* memdbCheckReservedLock, */ /* xCheckReservedLock */
-  memdbFileControl,                /* xFileControl */
-  0, /* memdbSectorSize,*/         /* xSectorSize */
-  memdbDeviceCharacteristics,      /* xDeviceCharacteristics */
-  0,                               /* xShmMap */
-  0,                               /* xShmLock */
-  0,                               /* xShmBarrier */
-  0,                               /* xShmUnmap */
-  memdbFetch,                      /* xFetch */
-  memdbUnfetch                     /* xUnfetch */
-};
-
-
-
-/*
-** Close an memdb-file.
-**
-** The pData pointer is owned by the application, so there is nothing
-** to free.
-*/
-static int memdbClose(tdsqlite3_file *pFile){
-  MemFile *p = (MemFile *)pFile;
-  if( p->mFlags & SQLITE_DESERIALIZE_FREEONCLOSE ) tdsqlite3_free(p->aData);
-  return SQLITE_OK;
-}
-
-/*
-** Read data from an memdb-file.
-*/
-static int memdbRead(
-  tdsqlite3_file *pFile, 
-  void *zBuf, 
-  int iAmt, 
-  sqlite_int64 iOfst
-){
-  MemFile *p = (MemFile *)pFile;
-  if( iOfst+iAmt>p->sz ){
-    memset(zBuf, 0, iAmt);
-    if( iOfst<p->sz ) memcpy(zBuf, p->aData+iOfst, p->sz - iOfst);
-    return SQLITE_IOERR_SHORT_READ;
-  }
-  memcpy(zBuf, p->aData+iOfst, iAmt);
-  return SQLITE_OK;
-}
-
-/*
-** Try to enlarge the memory allocation to hold at least sz bytes
-*/
-static int memdbEnlarge(MemFile *p, tdsqlite3_int64 newSz){
-  unsigned char *pNew;
-  if( (p->mFlags & SQLITE_DESERIALIZE_RESIZEABLE)==0 || p->nMmap>0 ){
-    return SQLITE_FULL;
-  }
-  if( newSz>p->szMax ){
-    return SQLITE_FULL;
-  }
-  newSz *= 2;
-  if( newSz>p->szMax ) newSz = p->szMax;
-  pNew = tdsqlite3_realloc64(p->aData, newSz);
-  if( pNew==0 ) return SQLITE_NOMEM;
-  p->aData = pNew;
-  p->szAlloc = newSz;
-  return SQLITE_OK;
-}
-
-/*
-** Write data to an memdb-file.
-*/
-static int memdbWrite(
-  tdsqlite3_file *pFile,
-  const void *z,
-  int iAmt,
-  sqlite_int64 iOfst
-){
-  MemFile *p = (MemFile *)pFile;
-  if( NEVER(p->mFlags & SQLITE_DESERIALIZE_READONLY) ) return SQLITE_READONLY;
-  if( iOfst+iAmt>p->sz ){
-    int rc;
-    if( iOfst+iAmt>p->szAlloc
-     && (rc = memdbEnlarge(p, iOfst+iAmt))!=SQLITE_OK
-    ){
-      return rc;
-    }
-    if( iOfst>p->sz ) memset(p->aData+p->sz, 0, iOfst-p->sz);
-    p->sz = iOfst+iAmt;
-  }
-  memcpy(p->aData+iOfst, z, iAmt);
-  return SQLITE_OK;
-}
-
-/*
-** Truncate an memdb-file.
-**
-** In rollback mode (which is always the case for memdb, as it does not
-** support WAL mode) the truncate() method is only used to reduce
-** the size of a file, never to increase the size.
-*/
-static int memdbTruncate(tdsqlite3_file *pFile, sqlite_int64 size){
-  MemFile *p = (MemFile *)pFile;
-  if( NEVER(size>p->sz) ) return SQLITE_FULL;
-  p->sz = size; 
-  return SQLITE_OK;
-}
-
-/*
-** Sync an memdb-file.
-*/
-static int memdbSync(tdsqlite3_file *pFile, int flags){
-  return SQLITE_OK;
-}
-
-/*
-** Return the current file-size of an memdb-file.
-*/
-static int memdbFileSize(tdsqlite3_file *pFile, sqlite_int64 *pSize){
-  MemFile *p = (MemFile *)pFile;
-  *pSize = p->sz;
-  return SQLITE_OK;
-}
-
-/*
-** Lock an memdb-file.
-*/
-static int memdbLock(tdsqlite3_file *pFile, int eLock){
-  MemFile *p = (MemFile *)pFile;
-  if( eLock>SQLITE_LOCK_SHARED 
-   && (p->mFlags & SQLITE_DESERIALIZE_READONLY)!=0
-  ){
-    return SQLITE_READONLY;
-  }
-  p->eLock = eLock;
-  return SQLITE_OK;
-}
-
-#if 0 /* Never used because memdbAccess() always returns false */
-/*
-** Check if another file-handle holds a RESERVED lock on an memdb-file.
-*/
-static int memdbCheckReservedLock(tdsqlite3_file *pFile, int *pResOut){
-  *pResOut = 0;
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** File control method. For custom operations on an memdb-file.
-*/
-static int memdbFileControl(tdsqlite3_file *pFile, int op, void *pArg){
-  MemFile *p = (MemFile *)pFile;
-  int rc = SQLITE_NOTFOUND;
-  if( op==SQLITE_FCNTL_VFSNAME ){
-    *(char**)pArg = tdsqlite3_mprintf("memdb(%p,%lld)", p->aData, p->sz);
-    rc = SQLITE_OK;
-  }
-  if( op==SQLITE_FCNTL_SIZE_LIMIT ){
-    tdsqlite3_int64 iLimit = *(tdsqlite3_int64*)pArg;
-    if( iLimit<p->sz ){
-      if( iLimit<0 ){
-        iLimit = p->szMax;
-      }else{
-        iLimit = p->sz;
-      }
-    }
-    p->szMax = iLimit;
-    *(tdsqlite3_int64*)pArg = iLimit;
-    rc = SQLITE_OK;
-  }
-  return rc;
-}
-
-#if 0  /* Not used because of SQLITE_IOCAP_POWERSAFE_OVERWRITE */
-/*
-** Return the sector-size in bytes for an memdb-file.
-*/
-static int memdbSectorSize(tdsqlite3_file *pFile){
-  return 1024;
-}
-#endif
-
-/*
-** Return the device characteristic flags supported by an memdb-file.
-*/
-static int memdbDeviceCharacteristics(tdsqlite3_file *pFile){
-  return SQLITE_IOCAP_ATOMIC | 
-         SQLITE_IOCAP_POWERSAFE_OVERWRITE |
-         SQLITE_IOCAP_SAFE_APPEND |
-         SQLITE_IOCAP_SEQUENTIAL;
-}
-
-/* Fetch a page of a memory-mapped file */
-static int memdbFetch(
-  tdsqlite3_file *pFile,
-  tdsqlite3_int64 iOfst,
-  int iAmt,
-  void **pp
-){
-  MemFile *p = (MemFile *)pFile;
-  if( iOfst+iAmt>p->sz ){
-    *pp = 0;
-  }else{
-    p->nMmap++;
-    *pp = (void*)(p->aData + iOfst);
-  }
-  return SQLITE_OK;
-}
-
-/* Release a memory-mapped page */
-static int memdbUnfetch(tdsqlite3_file *pFile, tdsqlite3_int64 iOfst, void *pPage){
-  MemFile *p = (MemFile *)pFile;
-  p->nMmap--;
-  return SQLITE_OK;
-}
-
-/*
-** Open an mem file handle.
-*/
-static int memdbOpen(
-  tdsqlite3_vfs *pVfs,
-  const char *zName,
-  tdsqlite3_file *pFile,
-  int flags,
-  int *pOutFlags
-){
-  MemFile *p = (MemFile*)pFile;
-  if( (flags & SQLITE_OPEN_MAIN_DB)==0 ){
-    return ORIGVFS(pVfs)->xOpen(ORIGVFS(pVfs), zName, pFile, flags, pOutFlags);
-  }
-  memset(p, 0, sizeof(*p));
-  p->mFlags = SQLITE_DESERIALIZE_RESIZEABLE | SQLITE_DESERIALIZE_FREEONCLOSE;
-  assert( pOutFlags!=0 );  /* True because flags==SQLITE_OPEN_MAIN_DB */
-  *pOutFlags = flags | SQLITE_OPEN_MEMORY;
-  p->base.pMethods = &memdb_io_methods;
-  p->szMax = tdsqlite3GlobalConfig.mxMemdbSize;
-  return SQLITE_OK;
-}
-
-#if 0 /* Only used to delete rollback journals, master journals, and WAL
-      ** files, none of which exist in memdb.  So this routine is never used */
-/*
-** Delete the file located at zPath. If the dirSync argument is true,
-** ensure the file-system modifications are synced to disk before
-** returning.
-*/
-static int memdbDelete(tdsqlite3_vfs *pVfs, const char *zPath, int dirSync){
-  return SQLITE_IOERR_DELETE;
-}
-#endif
-
-/*
-** Test for access permissions. Return true if the requested permission
-** is available, or false otherwise.
-**
-** With memdb, no files ever exist on disk.  So always return false.
-*/
-static int memdbAccess(
-  tdsqlite3_vfs *pVfs, 
-  const char *zPath, 
-  int flags, 
-  int *pResOut
-){
-  *pResOut = 0;
-  return SQLITE_OK;
-}
-
-/*
-** Populate buffer zOut with the full canonical pathname corresponding
-** to the pathname in zPath. zOut is guaranteed to point to a buffer
-** of at least (INST_MAX_PATHNAME+1) bytes.
-*/
-static int memdbFullPathname(
-  tdsqlite3_vfs *pVfs, 
-  const char *zPath, 
-  int nOut, 
-  char *zOut
-){
-  tdsqlite3_snprintf(nOut, zOut, "%s", zPath);
-  return SQLITE_OK;
-}
-
-/*
-** Open the dynamic library located at zPath and return a handle.
-*/
-static void *memdbDlOpen(tdsqlite3_vfs *pVfs, const char *zPath){
-  return ORIGVFS(pVfs)->xDlOpen(ORIGVFS(pVfs), zPath);
-}
-
-/*
-** Populate the buffer zErrMsg (size nByte bytes) with a human readable
-** utf-8 string describing the most recent error encountered associated 
-** with dynamic libraries.
-*/
-static void memdbDlError(tdsqlite3_vfs *pVfs, int nByte, char *zErrMsg){
-  ORIGVFS(pVfs)->xDlError(ORIGVFS(pVfs), nByte, zErrMsg);
-}
-
-/*
-** Return a pointer to the symbol zSymbol in the dynamic library pHandle.
-*/
-static void (*memdbDlSym(tdsqlite3_vfs *pVfs, void *p, const char *zSym))(void){
-  return ORIGVFS(pVfs)->xDlSym(ORIGVFS(pVfs), p, zSym);
-}
-
-/*
-** Close the dynamic library handle pHandle.
-*/
-static void memdbDlClose(tdsqlite3_vfs *pVfs, void *pHandle){
-  ORIGVFS(pVfs)->xDlClose(ORIGVFS(pVfs), pHandle);
-}
-
-/*
-** Populate the buffer pointed to by zBufOut with nByte bytes of 
-** random data.
-*/
-static int memdbRandomness(tdsqlite3_vfs *pVfs, int nByte, char *zBufOut){
-  return ORIGVFS(pVfs)->xRandomness(ORIGVFS(pVfs), nByte, zBufOut);
-}
-
-/*
-** Sleep for nMicro microseconds. Return the number of microseconds 
-** actually slept.
-*/
-static int memdbSleep(tdsqlite3_vfs *pVfs, int nMicro){
-  return ORIGVFS(pVfs)->xSleep(ORIGVFS(pVfs), nMicro);
-}
-
-#if 0  /* Never used.  Modern cores only call xCurrentTimeInt64() */
-/*
-** Return the current time as a Julian Day number in *pTimeOut.
-*/
-static int memdbCurrentTime(tdsqlite3_vfs *pVfs, double *pTimeOut){
-  return ORIGVFS(pVfs)->xCurrentTime(ORIGVFS(pVfs), pTimeOut);
-}
-#endif
-
-static int memdbGetLastError(tdsqlite3_vfs *pVfs, int a, char *b){
-  return ORIGVFS(pVfs)->xGetLastError(ORIGVFS(pVfs), a, b);
-}
-static int memdbCurrentTimeInt64(tdsqlite3_vfs *pVfs, tdsqlite3_int64 *p){
-  return ORIGVFS(pVfs)->xCurrentTimeInt64(ORIGVFS(pVfs), p);
-}
-
-/*
-** Translate a database connection pointer and schema name into a
-** MemFile pointer.
-*/
-static MemFile *memdbFromDbSchema(tdsqlite3 *db, const char *zSchema){
-  MemFile *p = 0;
-  int rc = tdsqlite3_file_control(db, zSchema, SQLITE_FCNTL_FILE_POINTER, &p);
-  if( rc ) return 0;
-  if( p->base.pMethods!=&memdb_io_methods ) return 0;
-  return p;
-}
-
-/*
-** Return the serialization of a database
-*/
-SQLITE_API unsigned char *tdsqlite3_serialize(
-  tdsqlite3 *db,              /* The database connection */
-  const char *zSchema,      /* Which database within the connection */
-  tdsqlite3_int64 *piSize,    /* Write size here, if not NULL */
-  unsigned int mFlags       /* Maybe SQLITE_SERIALIZE_NOCOPY */
-){
-  MemFile *p;
-  int iDb;
-  Btree *pBt;
-  tdsqlite3_int64 sz;
-  int szPage = 0;
-  tdsqlite3_stmt *pStmt = 0;
-  unsigned char *pOut;
-  char *zSql;
-  int rc;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-
-  if( zSchema==0 ) zSchema = db->aDb[0].zDbSName;
-  p = memdbFromDbSchema(db, zSchema);
-  iDb = tdsqlite3FindDbName(db, zSchema);
-  if( piSize ) *piSize = -1;
-  if( iDb<0 ) return 0;
-  if( p ){
-    if( piSize ) *piSize = p->sz;
-    if( mFlags & SQLITE_SERIALIZE_NOCOPY ){
-      pOut = p->aData;
-    }else{
-      pOut = tdsqlite3_malloc64( p->sz );
-      if( pOut ) memcpy(pOut, p->aData, p->sz);
-    }
-    return pOut;
-  }
-  pBt = db->aDb[iDb].pBt;
-  if( pBt==0 ) return 0;
-  szPage = tdsqlite3BtreeGetPageSize(pBt);
-  zSql = tdsqlite3_mprintf("PRAGMA \"%w\".page_count", zSchema);
-  rc = zSql ? tdsqlite3_prepare_v2(db, zSql, -1, &pStmt, 0) : SQLITE_NOMEM;
-  tdsqlite3_free(zSql);
-  if( rc ) return 0;
-  rc = tdsqlite3_step(pStmt);
-  if( rc!=SQLITE_ROW ){
-    pOut = 0;
-  }else{
-    sz = tdsqlite3_column_int64(pStmt, 0)*szPage;
-    if( piSize ) *piSize = sz;
-    if( mFlags & SQLITE_SERIALIZE_NOCOPY ){
-      pOut = 0;
-    }else{
-      pOut = tdsqlite3_malloc64( sz );
-      if( pOut ){
-        int nPage = tdsqlite3_column_int(pStmt, 0);
-        Pager *pPager = tdsqlite3BtreePager(pBt);
-        int pgno;
-        for(pgno=1; pgno<=nPage; pgno++){
-          DbPage *pPage = 0;
-          unsigned char *pTo = pOut + szPage*(tdsqlite3_int64)(pgno-1);
-          rc = tdsqlite3PagerGet(pPager, pgno, (DbPage**)&pPage, 0);
-          if( rc==SQLITE_OK ){
-            memcpy(pTo, tdsqlite3PagerGetData(pPage), szPage);
-          }else{
-            memset(pTo, 0, szPage);
-          }
-          tdsqlite3PagerUnref(pPage);       
-        }
-      }
-    }
-  }
-  tdsqlite3_finalize(pStmt);
-  return pOut;
-}
-
-/* Convert zSchema to a MemDB and initialize its content.
-*/
-SQLITE_API int tdsqlite3_deserialize(
-  tdsqlite3 *db,            /* The database connection */
-  const char *zSchema,    /* Which DB to reopen with the deserialization */
-  unsigned char *pData,   /* The serialized database content */
-  tdsqlite3_int64 szDb,     /* Number bytes in the deserialization */
-  tdsqlite3_int64 szBuf,    /* Total size of buffer pData[] */
-  unsigned mFlags         /* Zero or more SQLITE_DESERIALIZE_* flags */
-){
-  MemFile *p;
-  char *zSql;
-  tdsqlite3_stmt *pStmt = 0;
-  int rc;
-  int iDb;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-  if( szDb<0 ) return SQLITE_MISUSE_BKPT;
-  if( szBuf<0 ) return SQLITE_MISUSE_BKPT;
-#endif
-
-  tdsqlite3_mutex_enter(db->mutex);
-  if( zSchema==0 ) zSchema = db->aDb[0].zDbSName;
-  iDb = tdsqlite3FindDbName(db, zSchema);
-  if( iDb<0 ){
-    rc = SQLITE_ERROR;
-    goto end_deserialize;
-  }    
-  zSql = tdsqlite3_mprintf("ATTACH x AS %Q", zSchema);
-  rc = tdsqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
-  tdsqlite3_free(zSql);
-  if( rc ) goto end_deserialize;
-  db->init.iDb = (u8)iDb;
-  db->init.reopenMemdb = 1;
-  rc = tdsqlite3_step(pStmt);
-  db->init.reopenMemdb = 0;
-  if( rc!=SQLITE_DONE ){
-    rc = SQLITE_ERROR;
-    goto end_deserialize;
-  }
-  p = memdbFromDbSchema(db, zSchema);
-  if( p==0 ){
-    rc = SQLITE_ERROR;
-  }else{
-    p->aData = pData;
-    p->sz = szDb;
-    p->szAlloc = szBuf;
-    p->szMax = szBuf;
-    if( p->szMax<tdsqlite3GlobalConfig.mxMemdbSize ){
-      p->szMax = tdsqlite3GlobalConfig.mxMemdbSize;
-    }
-    p->mFlags = mFlags;
-    rc = SQLITE_OK;
-  }
-
-end_deserialize:
-  tdsqlite3_finalize(pStmt);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/* 
-** This routine is called when the extension is loaded.
-** Register the new VFS.
-*/
-SQLITE_PRIVATE int tdsqlite3MemdbInit(void){
-  tdsqlite3_vfs *pLower = tdsqlite3_vfs_find(0);
-  int sz = pLower->szOsFile;
-  memdb_vfs.pAppData = pLower;
-  /* In all known configurations of SQLite, the size of a default
-  ** tdsqlite3_file is greater than the size of a memdb tdsqlite3_file.
-  ** Should that ever change, remove the following NEVER() */
-  if( NEVER(sz<sizeof(MemFile)) ) sz = sizeof(MemFile);
-  memdb_vfs.szOsFile = sz;
-  return tdsqlite3_vfs_register(&memdb_vfs, 0);
-}
-#endif /* SQLITE_ENABLE_DESERIALIZE */
-
-/************** End of memdb.c ***********************************************/
-/************** Begin file bitvec.c ******************************************/
-/*
-** 2008 February 16
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file implements an object that represents a fixed-length
-** bitmap.  Bits are numbered starting with 1.
-**
-** A bitmap is used to record which pages of a database file have been
-** journalled during a transaction, or which pages have the "dont-write"
-** property.  Usually only a few pages are meet either condition.
-** So the bitmap is usually sparse and has low cardinality.
-** But sometimes (for example when during a DROP of a large table) most
-** or all of the pages in a database can get journalled.  In those cases, 
-** the bitmap becomes dense with high cardinality.  The algorithm needs 
-** to handle both cases well.
-**
-** The size of the bitmap is fixed when the object is created.
-**
-** All bits are clear when the bitmap is created.  Individual bits
-** may be set or cleared one at a time.
-**
-** Test operations are about 100 times more common that set operations.
-** Clear operations are exceedingly rare.  There are usually between
-** 5 and 500 set operations per Bitvec object, though the number of sets can
-** sometimes grow into tens of thousands or larger.  The size of the
-** Bitvec object is the number of pages in the database file at the
-** start of a transaction, and is thus usually less than a few thousand,
-** but can be as large as 2 billion for a really big database.
-*/
-/* #include "sqliteInt.h" */
-
-/* Size of the Bitvec structure in bytes. */
-#define BITVEC_SZ        512
-
-/* Round the union size down to the nearest pointer boundary, since that's how 
-** it will be aligned within the Bitvec struct. */
-#define BITVEC_USIZE \
-    (((BITVEC_SZ-(3*sizeof(u32)))/sizeof(Bitvec*))*sizeof(Bitvec*))
-
-/* Type of the array "element" for the bitmap representation. 
-** Should be a power of 2, and ideally, evenly divide into BITVEC_USIZE. 
-** Setting this to the "natural word" size of your CPU may improve
-** performance. */
-#define BITVEC_TELEM     u8
-/* Size, in bits, of the bitmap element. */
-#define BITVEC_SZELEM    8
-/* Number of elements in a bitmap array. */
-#define BITVEC_NELEM     (BITVEC_USIZE/sizeof(BITVEC_TELEM))
-/* Number of bits in the bitmap array. */
-#define BITVEC_NBIT      (BITVEC_NELEM*BITVEC_SZELEM)
-
-/* Number of u32 values in hash table. */
-#define BITVEC_NINT      (BITVEC_USIZE/sizeof(u32))
-/* Maximum number of entries in hash table before 
-** sub-dividing and re-hashing. */
-#define BITVEC_MXHASH    (BITVEC_NINT/2)
-/* Hashing function for the aHash representation.
-** Empirical testing showed that the *37 multiplier 
-** (an arbitrary prime)in the hash function provided 
-** no fewer collisions than the no-op *1. */
-#define BITVEC_HASH(X)   (((X)*1)%BITVEC_NINT)
-
-#define BITVEC_NPTR      (BITVEC_USIZE/sizeof(Bitvec *))
-
-
-/*
-** A bitmap is an instance of the following structure.
-**
-** This bitmap records the existence of zero or more bits
-** with values between 1 and iSize, inclusive.
-**
-** There are three possible representations of the bitmap.
-** If iSize<=BITVEC_NBIT, then Bitvec.u.aBitmap[] is a straight
-** bitmap.  The least significant bit is bit 1.
-**
-** If iSize>BITVEC_NBIT and iDivisor==0 then Bitvec.u.aHash[] is
-** a hash table that will hold up to BITVEC_MXHASH distinct values.
-**
-** Otherwise, the value i is redirected into one of BITVEC_NPTR
-** sub-bitmaps pointed to by Bitvec.u.apSub[].  Each subbitmap
-** handles up to iDivisor separate values of i.  apSub[0] holds
-** values between 1 and iDivisor.  apSub[1] holds values between
-** iDivisor+1 and 2*iDivisor.  apSub[N] holds values between
-** N*iDivisor+1 and (N+1)*iDivisor.  Each subbitmap is normalized
-** to hold deal with values between 1 and iDivisor.
-*/
-struct Bitvec {
-  u32 iSize;      /* Maximum bit index.  Max iSize is 4,294,967,296. */
-  u32 nSet;       /* Number of bits that are set - only valid for aHash
-                  ** element.  Max is BITVEC_NINT.  For BITVEC_SZ of 512,
-                  ** this would be 125. */
-  u32 iDivisor;   /* Number of bits handled by each apSub[] entry. */
-                  /* Should >=0 for apSub element. */
-                  /* Max iDivisor is max(u32) / BITVEC_NPTR + 1.  */
-                  /* For a BITVEC_SZ of 512, this would be 34,359,739. */
-  union {
-    BITVEC_TELEM aBitmap[BITVEC_NELEM];    /* Bitmap representation */
-    u32 aHash[BITVEC_NINT];      /* Hash table representation */
-    Bitvec *apSub[BITVEC_NPTR];  /* Recursive representation */
-  } u;
-};
-
-/*
-** Create a new bitmap object able to handle bits between 0 and iSize,
-** inclusive.  Return a pointer to the new object.  Return NULL if 
-** malloc fails.
-*/
-SQLITE_PRIVATE Bitvec *tdsqlite3BitvecCreate(u32 iSize){
-  Bitvec *p;
-  assert( sizeof(*p)==BITVEC_SZ );
-  p = tdsqlite3MallocZero( sizeof(*p) );
-  if( p ){
-    p->iSize = iSize;
-  }
-  return p;
-}
-
-/*
-** Check to see if the i-th bit is set.  Return true or false.
-** If p is NULL (if the bitmap has not been created) or if
-** i is out of range, then return false.
-*/
-SQLITE_PRIVATE int tdsqlite3BitvecTestNotNull(Bitvec *p, u32 i){
-  assert( p!=0 );
-  i--;
-  if( i>=p->iSize ) return 0;
-  while( p->iDivisor ){
-    u32 bin = i/p->iDivisor;
-    i = i%p->iDivisor;
-    p = p->u.apSub[bin];
-    if (!p) {
-      return 0;
-    }
-  }
-  if( p->iSize<=BITVEC_NBIT ){
-    return (p->u.aBitmap[i/BITVEC_SZELEM] & (1<<(i&(BITVEC_SZELEM-1))))!=0;
-  } else{
-    u32 h = BITVEC_HASH(i++);
-    while( p->u.aHash[h] ){
-      if( p->u.aHash[h]==i ) return 1;
-      h = (h+1) % BITVEC_NINT;
-    }
-    return 0;
-  }
-}
-SQLITE_PRIVATE int tdsqlite3BitvecTest(Bitvec *p, u32 i){
-  return p!=0 && tdsqlite3BitvecTestNotNull(p,i);
-}
-
-/*
-** Set the i-th bit.  Return 0 on success and an error code if
-** anything goes wrong.
-**
-** This routine might cause sub-bitmaps to be allocated.  Failing
-** to get the memory needed to hold the sub-bitmap is the only
-** that can go wrong with an insert, assuming p and i are valid.
-**
-** The calling function must ensure that p is a valid Bitvec object
-** and that the value for "i" is within range of the Bitvec object.
-** Otherwise the behavior is undefined.
-*/
-SQLITE_PRIVATE int tdsqlite3BitvecSet(Bitvec *p, u32 i){
-  u32 h;
-  if( p==0 ) return SQLITE_OK;
-  assert( i>0 );
-  assert( i<=p->iSize );
-  i--;
-  while((p->iSize > BITVEC_NBIT) && p->iDivisor) {
-    u32 bin = i/p->iDivisor;
-    i = i%p->iDivisor;
-    if( p->u.apSub[bin]==0 ){
-      p->u.apSub[bin] = tdsqlite3BitvecCreate( p->iDivisor );
-      if( p->u.apSub[bin]==0 ) return SQLITE_NOMEM_BKPT;
-    }
-    p = p->u.apSub[bin];
-  }
-  if( p->iSize<=BITVEC_NBIT ){
-    p->u.aBitmap[i/BITVEC_SZELEM] |= 1 << (i&(BITVEC_SZELEM-1));
-    return SQLITE_OK;
-  }
-  h = BITVEC_HASH(i++);
-  /* if there wasn't a hash collision, and this doesn't */
-  /* completely fill the hash, then just add it without */
-  /* worring about sub-dividing and re-hashing. */
-  if( !p->u.aHash[h] ){
-    if (p->nSet<(BITVEC_NINT-1)) {
-      goto bitvec_set_end;
-    } else {
-      goto bitvec_set_rehash;
-    }
-  }
-  /* there was a collision, check to see if it's already */
-  /* in hash, if not, try to find a spot for it */
-  do {
-    if( p->u.aHash[h]==i ) return SQLITE_OK;
-    h++;
-    if( h>=BITVEC_NINT ) h = 0;
-  } while( p->u.aHash[h] );
-  /* we didn't find it in the hash.  h points to the first */
-  /* available free spot. check to see if this is going to */
-  /* make our hash too "full".  */
-bitvec_set_rehash:
-  if( p->nSet>=BITVEC_MXHASH ){
-    unsigned int j;
-    int rc;
-    u32 *aiValues = tdsqlite3StackAllocRaw(0, sizeof(p->u.aHash));
-    if( aiValues==0 ){
-      return SQLITE_NOMEM_BKPT;
-    }else{
-      memcpy(aiValues, p->u.aHash, sizeof(p->u.aHash));
-      memset(p->u.apSub, 0, sizeof(p->u.apSub));
-      p->iDivisor = (p->iSize + BITVEC_NPTR - 1)/BITVEC_NPTR;
-      rc = tdsqlite3BitvecSet(p, i);
-      for(j=0; j<BITVEC_NINT; j++){
-        if( aiValues[j] ) rc |= tdsqlite3BitvecSet(p, aiValues[j]);
-      }
-      tdsqlite3StackFree(0, aiValues);
-      return rc;
-    }
-  }
-bitvec_set_end:
-  p->nSet++;
-  p->u.aHash[h] = i;
-  return SQLITE_OK;
-}
-
-/*
-** Clear the i-th bit.
-**
-** pBuf must be a pointer to at least BITVEC_SZ bytes of temporary storage
-** that BitvecClear can use to rebuilt its hash table.
-*/
-SQLITE_PRIVATE void tdsqlite3BitvecClear(Bitvec *p, u32 i, void *pBuf){
-  if( p==0 ) return;
-  assert( i>0 );
-  i--;
-  while( p->iDivisor ){
-    u32 bin = i/p->iDivisor;
-    i = i%p->iDivisor;
-    p = p->u.apSub[bin];
-    if (!p) {
-      return;
-    }
-  }
-  if( p->iSize<=BITVEC_NBIT ){
-    p->u.aBitmap[i/BITVEC_SZELEM] &= ~(1 << (i&(BITVEC_SZELEM-1)));
-  }else{
-    unsigned int j;
-    u32 *aiValues = pBuf;
-    memcpy(aiValues, p->u.aHash, sizeof(p->u.aHash));
-    memset(p->u.aHash, 0, sizeof(p->u.aHash));
-    p->nSet = 0;
-    for(j=0; j<BITVEC_NINT; j++){
-      if( aiValues[j] && aiValues[j]!=(i+1) ){
-        u32 h = BITVEC_HASH(aiValues[j]-1);
-        p->nSet++;
-        while( p->u.aHash[h] ){
-          h++;
-          if( h>=BITVEC_NINT ) h = 0;
-        }
-        p->u.aHash[h] = aiValues[j];
-      }
-    }
-  }
-}
-
-/*
-** Destroy a bitmap object.  Reclaim all memory used.
-*/
-SQLITE_PRIVATE void tdsqlite3BitvecDestroy(Bitvec *p){
-  if( p==0 ) return;
-  if( p->iDivisor ){
-    unsigned int i;
-    for(i=0; i<BITVEC_NPTR; i++){
-      tdsqlite3BitvecDestroy(p->u.apSub[i]);
-    }
-  }
-  tdsqlite3_free(p);
-}
-
-/*
-** Return the value of the iSize parameter specified when Bitvec *p
-** was created.
-*/
-SQLITE_PRIVATE u32 tdsqlite3BitvecSize(Bitvec *p){
-  return p->iSize;
-}
-
-#ifndef SQLITE_UNTESTABLE
-/*
-** Let V[] be an array of unsigned characters sufficient to hold
-** up to N bits.  Let I be an integer between 0 and N.  0<=I<N.
-** Then the following macros can be used to set, clear, or test
-** individual bits within V.
-*/
-#define SETBIT(V,I)      V[I>>3] |= (1<<(I&7))
-#define CLEARBIT(V,I)    V[I>>3] &= ~(1<<(I&7))
-#define TESTBIT(V,I)     (V[I>>3]&(1<<(I&7)))!=0
-
-/*
-** This routine runs an extensive test of the Bitvec code.
-**
-** The input is an array of integers that acts as a program
-** to test the Bitvec.  The integers are opcodes followed
-** by 0, 1, or 3 operands, depending on the opcode.  Another
-** opcode follows immediately after the last operand.
-**
-** There are 6 opcodes numbered from 0 through 5.  0 is the
-** "halt" opcode and causes the test to end.
-**
-**    0          Halt and return the number of errors
-**    1 N S X    Set N bits beginning with S and incrementing by X
-**    2 N S X    Clear N bits beginning with S and incrementing by X
-**    3 N        Set N randomly chosen bits
-**    4 N        Clear N randomly chosen bits
-**    5 N S X    Set N bits from S increment X in array only, not in bitvec
-**
-** The opcodes 1 through 4 perform set and clear operations are performed
-** on both a Bitvec object and on a linear array of bits obtained from malloc.
-** Opcode 5 works on the linear array only, not on the Bitvec.
-** Opcode 5 is used to deliberately induce a fault in order to
-** confirm that error detection works.
-**
-** At the conclusion of the test the linear array is compared
-** against the Bitvec object.  If there are any differences,
-** an error is returned.  If they are the same, zero is returned.
-**
-** If a memory allocation error occurs, return -1.
-*/
-SQLITE_PRIVATE int tdsqlite3BitvecBuiltinTest(int sz, int *aOp){
-  Bitvec *pBitvec = 0;
-  unsigned char *pV = 0;
-  int rc = -1;
-  int i, nx, pc, op;
-  void *pTmpSpace;
-
-  /* Allocate the Bitvec to be tested and a linear array of
-  ** bits to act as the reference */
-  pBitvec = tdsqlite3BitvecCreate( sz );
-  pV = tdsqlite3MallocZero( (sz+7)/8 + 1 );
-  pTmpSpace = tdsqlite3_malloc64(BITVEC_SZ);
-  if( pBitvec==0 || pV==0 || pTmpSpace==0  ) goto bitvec_end;
-
-  /* NULL pBitvec tests */
-  tdsqlite3BitvecSet(0, 1);
-  tdsqlite3BitvecClear(0, 1, pTmpSpace);
-
-  /* Run the program */
-  pc = 0;
-  while( (op = aOp[pc])!=0 ){
-    switch( op ){
-      case 1:
-      case 2:
-      case 5: {
-        nx = 4;
-        i = aOp[pc+2] - 1;
-        aOp[pc+2] += aOp[pc+3];
-        break;
-      }
-      case 3:
-      case 4: 
-      default: {
-        nx = 2;
-        tdsqlite3_randomness(sizeof(i), &i);
-        break;
-      }
-    }
-    if( (--aOp[pc+1]) > 0 ) nx = 0;
-    pc += nx;
-    i = (i & 0x7fffffff)%sz;
-    if( (op & 1)!=0 ){
-      SETBIT(pV, (i+1));
-      if( op!=5 ){
-        if( tdsqlite3BitvecSet(pBitvec, i+1) ) goto bitvec_end;
-      }
-    }else{
-      CLEARBIT(pV, (i+1));
-      tdsqlite3BitvecClear(pBitvec, i+1, pTmpSpace);
-    }
-  }
-
-  /* Test to make sure the linear array exactly matches the
-  ** Bitvec object.  Start with the assumption that they do
-  ** match (rc==0).  Change rc to non-zero if a discrepancy
-  ** is found.
-  */
-  rc = tdsqlite3BitvecTest(0,0) + tdsqlite3BitvecTest(pBitvec, sz+1)
-          + tdsqlite3BitvecTest(pBitvec, 0)
-          + (tdsqlite3BitvecSize(pBitvec) - sz);
-  for(i=1; i<=sz; i++){
-    if(  (TESTBIT(pV,i))!=tdsqlite3BitvecTest(pBitvec,i) ){
-      rc = i;
-      break;
-    }
-  }
-
-  /* Free allocated structure */
-bitvec_end:
-  tdsqlite3_free(pTmpSpace);
-  tdsqlite3_free(pV);
-  tdsqlite3BitvecDestroy(pBitvec);
-  return rc;
-}
-#endif /* SQLITE_UNTESTABLE */
-
-/************** End of bitvec.c **********************************************/
-/************** Begin file pcache.c ******************************************/
-/*
-** 2008 August 05
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file implements that page cache.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** A complete page cache is an instance of this structure.  Every
-** entry in the cache holds a single page of the database file.  The
-** btree layer only operates on the cached copy of the database pages.
-**
-** A page cache entry is "clean" if it exactly matches what is currently
-** on disk.  A page is "dirty" if it has been modified and needs to be
-** persisted to disk.
-**
-** pDirty, pDirtyTail, pSynced:
-**   All dirty pages are linked into the doubly linked list using
-**   PgHdr.pDirtyNext and pDirtyPrev. The list is maintained in LRU order
-**   such that p was added to the list more recently than p->pDirtyNext.
-**   PCache.pDirty points to the first (newest) element in the list and
-**   pDirtyTail to the last (oldest).
-**
-**   The PCache.pSynced variable is used to optimize searching for a dirty
-**   page to eject from the cache mid-transaction. It is better to eject
-**   a page that does not require a journal sync than one that does. 
-**   Therefore, pSynced is maintained so that it *almost* always points
-**   to either the oldest page in the pDirty/pDirtyTail list that has a
-**   clear PGHDR_NEED_SYNC flag or to a page that is older than this one
-**   (so that the right page to eject can be found by following pDirtyPrev
-**   pointers).
-*/
-struct PCache {
-  PgHdr *pDirty, *pDirtyTail;         /* List of dirty pages in LRU order */
-  PgHdr *pSynced;                     /* Last synced page in dirty page list */
-  int nRefSum;                        /* Sum of ref counts over all pages */
-  int szCache;                        /* Configured cache size */
-  int szSpill;                        /* Size before spilling occurs */
-  int szPage;                         /* Size of every page in this cache */
-  int szExtra;                        /* Size of extra space for each page */
-  u8 bPurgeable;                      /* True if pages are on backing store */
-  u8 eCreate;                         /* eCreate value for for xFetch() */
-  int (*xStress)(void*,PgHdr*);       /* Call to try make a page clean */
-  void *pStress;                      /* Argument to xStress */
-  tdsqlite3_pcache *pCache;             /* Pluggable cache module */
-};
-
-/********************************** Test and Debug Logic **********************/
-/*
-** Debug tracing macros.  Enable by by changing the "0" to "1" and
-** recompiling.
-**
-** When tdsqlite3PcacheTrace is 1, single line trace messages are issued.
-** When tdsqlite3PcacheTrace is 2, a dump of the pcache showing all cache entries
-** is displayed for many operations, resulting in a lot of output.
-*/
-#if defined(SQLITE_DEBUG) && 0
-  int tdsqlite3PcacheTrace = 2;       /* 0: off  1: simple  2: cache dumps */
-  int tdsqlite3PcacheMxDump = 9999;   /* Max cache entries for pcacheDump() */
-# define pcacheTrace(X) if(tdsqlite3PcacheTrace){tdsqlite3DebugPrintf X;}
-  void pcacheDump(PCache *pCache){
-    int N;
-    int i, j;
-    tdsqlite3_pcache_page *pLower;
-    PgHdr *pPg;
-    unsigned char *a;
-  
-    if( tdsqlite3PcacheTrace<2 ) return;
-    if( pCache->pCache==0 ) return;
-    N = tdsqlite3PcachePagecount(pCache);
-    if( N>tdsqlite3PcacheMxDump ) N = tdsqlite3PcacheMxDump;
-    for(i=1; i<=N; i++){
-       pLower = tdsqlite3GlobalConfig.pcache2.xFetch(pCache->pCache, i, 0);
-       if( pLower==0 ) continue;
-       pPg = (PgHdr*)pLower->pExtra;
-       printf("%3d: nRef %2d flgs %02x data ", i, pPg->nRef, pPg->flags);
-       a = (unsigned char *)pLower->pBuf;
-       for(j=0; j<12; j++) printf("%02x", a[j]);
-       printf("\n");
-       if( pPg->pPage==0 ){
-         tdsqlite3GlobalConfig.pcache2.xUnpin(pCache->pCache, pLower, 0);
-       }
-    }
-  }
-  #else
-# define pcacheTrace(X)
-# define pcacheDump(X)
-#endif
-
-/*
-** Check invariants on a PgHdr entry.  Return true if everything is OK.
-** Return false if any invariant is violated.
-**
-** This routine is for use inside of assert() statements only.  For
-** example:
-**
-**          assert( tdsqlite3PcachePageSanity(pPg) );
-*/
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3PcachePageSanity(PgHdr *pPg){
-  PCache *pCache;
-  assert( pPg!=0 );
-  assert( pPg->pgno>0 || pPg->pPager==0 );    /* Page number is 1 or more */
-  pCache = pPg->pCache;
-  assert( pCache!=0 );      /* Every page has an associated PCache */
-  if( pPg->flags & PGHDR_CLEAN ){
-    assert( (pPg->flags & PGHDR_DIRTY)==0 );/* Cannot be both CLEAN and DIRTY */
-    assert( pCache->pDirty!=pPg );          /* CLEAN pages not on dirty list */
-    assert( pCache->pDirtyTail!=pPg );
-  }
-  /* WRITEABLE pages must also be DIRTY */
-  if( pPg->flags & PGHDR_WRITEABLE ){
-    assert( pPg->flags & PGHDR_DIRTY );     /* WRITEABLE implies DIRTY */
-  }
-  /* NEED_SYNC can be set independently of WRITEABLE.  This can happen,
-  ** for example, when using the tdsqlite3PagerDontWrite() optimization:
-  **    (1)  Page X is journalled, and gets WRITEABLE and NEED_SEEK.
-  **    (2)  Page X moved to freelist, WRITEABLE is cleared
-  **    (3)  Page X reused, WRITEABLE is set again
-  ** If NEED_SYNC had been cleared in step 2, then it would not be reset
-  ** in step 3, and page might be written into the database without first
-  ** syncing the rollback journal, which might cause corruption on a power
-  ** loss.
-  **
-  ** Another example is when the database page size is smaller than the
-  ** disk sector size.  When any page of a sector is journalled, all pages
-  ** in that sector are marked NEED_SYNC even if they are still CLEAN, just
-  ** in case they are later modified, since all pages in the same sector
-  ** must be journalled and synced before any of those pages can be safely
-  ** written.
-  */
-  return 1;
-}
-#endif /* SQLITE_DEBUG */
-
-
-/********************************** Linked List Management ********************/
-
-/* Allowed values for second argument to pcacheManageDirtyList() */
-#define PCACHE_DIRTYLIST_REMOVE   1    /* Remove pPage from dirty list */
-#define PCACHE_DIRTYLIST_ADD      2    /* Add pPage to the dirty list */
-#define PCACHE_DIRTYLIST_FRONT    3    /* Move pPage to the front of the list */
-
-/*
-** Manage pPage's participation on the dirty list.  Bits of the addRemove
-** argument determines what operation to do.  The 0x01 bit means first
-** remove pPage from the dirty list.  The 0x02 means add pPage back to
-** the dirty list.  Doing both moves pPage to the front of the dirty list.
-*/
-static void pcacheManageDirtyList(PgHdr *pPage, u8 addRemove){
-  PCache *p = pPage->pCache;
-
-  pcacheTrace(("%p.DIRTYLIST.%s %d\n", p,
-                addRemove==1 ? "REMOVE" : addRemove==2 ? "ADD" : "FRONT",
-                pPage->pgno));
-  if( addRemove & PCACHE_DIRTYLIST_REMOVE ){
-    assert( pPage->pDirtyNext || pPage==p->pDirtyTail );
-    assert( pPage->pDirtyPrev || pPage==p->pDirty );
-  
-    /* Update the PCache1.pSynced variable if necessary. */
-    if( p->pSynced==pPage ){
-      p->pSynced = pPage->pDirtyPrev;
-    }
-  
-    if( pPage->pDirtyNext ){
-      pPage->pDirtyNext->pDirtyPrev = pPage->pDirtyPrev;
-    }else{
-      assert( pPage==p->pDirtyTail );
-      p->pDirtyTail = pPage->pDirtyPrev;
-    }
-    if( pPage->pDirtyPrev ){
-      pPage->pDirtyPrev->pDirtyNext = pPage->pDirtyNext;
-    }else{
-      /* If there are now no dirty pages in the cache, set eCreate to 2. 
-      ** This is an optimization that allows tdsqlite3PcacheFetch() to skip
-      ** searching for a dirty page to eject from the cache when it might
-      ** otherwise have to.  */
-      assert( pPage==p->pDirty );
-      p->pDirty = pPage->pDirtyNext;
-      assert( p->bPurgeable || p->eCreate==2 );
-      if( p->pDirty==0 ){         /*OPTIMIZATION-IF-TRUE*/
-        assert( p->bPurgeable==0 || p->eCreate==1 );
-        p->eCreate = 2;
-      }
-    }
-  }
-  if( addRemove & PCACHE_DIRTYLIST_ADD ){
-    pPage->pDirtyPrev = 0;
-    pPage->pDirtyNext = p->pDirty;
-    if( pPage->pDirtyNext ){
-      assert( pPage->pDirtyNext->pDirtyPrev==0 );
-      pPage->pDirtyNext->pDirtyPrev = pPage;
-    }else{
-      p->pDirtyTail = pPage;
-      if( p->bPurgeable ){
-        assert( p->eCreate==2 );
-        p->eCreate = 1;
-      }
-    }
-    p->pDirty = pPage;
-
-    /* If pSynced is NULL and this page has a clear NEED_SYNC flag, set
-    ** pSynced to point to it. Checking the NEED_SYNC flag is an 
-    ** optimization, as if pSynced points to a page with the NEED_SYNC
-    ** flag set tdsqlite3PcacheFetchStress() searches through all newer 
-    ** entries of the dirty-list for a page with NEED_SYNC clear anyway.  */
-    if( !p->pSynced 
-     && 0==(pPage->flags&PGHDR_NEED_SYNC)   /*OPTIMIZATION-IF-FALSE*/
-    ){
-      p->pSynced = pPage;
-    }
-  }
-  pcacheDump(p);
-}
-
-/*
-** Wrapper around the pluggable caches xUnpin method. If the cache is
-** being used for an in-memory database, this function is a no-op.
-*/
-static void pcacheUnpin(PgHdr *p){
-  if( p->pCache->bPurgeable ){
-    pcacheTrace(("%p.UNPIN %d\n", p->pCache, p->pgno));
-    tdsqlite3GlobalConfig.pcache2.xUnpin(p->pCache->pCache, p->pPage, 0);
-    pcacheDump(p->pCache);
-  }
-}
-
-/*
-** Compute the number of pages of cache requested.   p->szCache is the
-** cache size requested by the "PRAGMA cache_size" statement.
-*/
-static int numberOfCachePages(PCache *p){
-  if( p->szCache>=0 ){
-    /* IMPLEMENTATION-OF: R-42059-47211 If the argument N is positive then the
-    ** suggested cache size is set to N. */
-    return p->szCache;
-  }else{
-    /* IMPLEMANTATION-OF: R-59858-46238 If the argument N is negative, then the
-    ** number of cache pages is adjusted to be a number of pages that would
-    ** use approximately abs(N*1024) bytes of memory based on the current
-    ** page size. */
-    return (int)((-1024*(i64)p->szCache)/(p->szPage+p->szExtra));
-  }
-}
-
-/*************************************************** General Interfaces ******
-**
-** Initialize and shutdown the page cache subsystem. Neither of these 
-** functions are threadsafe.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheInitialize(void){
-  if( tdsqlite3GlobalConfig.pcache2.xInit==0 ){
-    /* IMPLEMENTATION-OF: R-26801-64137 If the xInit() method is NULL, then the
-    ** built-in default page cache is used instead of the application defined
-    ** page cache. */
-    tdsqlite3PCacheSetDefault();
-    assert( tdsqlite3GlobalConfig.pcache2.xInit!=0 );
-  }
-  return tdsqlite3GlobalConfig.pcache2.xInit(tdsqlite3GlobalConfig.pcache2.pArg);
-}
-SQLITE_PRIVATE void tdsqlite3PcacheShutdown(void){
-  if( tdsqlite3GlobalConfig.pcache2.xShutdown ){
-    /* IMPLEMENTATION-OF: R-26000-56589 The xShutdown() method may be NULL. */
-    tdsqlite3GlobalConfig.pcache2.xShutdown(tdsqlite3GlobalConfig.pcache2.pArg);
-  }
-}
-
-/*
-** Return the size in bytes of a PCache object.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheSize(void){ return sizeof(PCache); }
-
-/*
-** Create a new PCache object. Storage space to hold the object
-** has already been allocated and is passed in as the p pointer. 
-** The caller discovers how much space needs to be allocated by 
-** calling tdsqlite3PcacheSize().
-**
-** szExtra is some extra space allocated for each page.  The first
-** 8 bytes of the extra space will be zeroed as the page is allocated,
-** but remaining content will be uninitialized.  Though it is opaque
-** to this module, the extra space really ends up being the MemPage
-** structure in the pager.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheOpen(
-  int szPage,                  /* Size of every page */
-  int szExtra,                 /* Extra space associated with each page */
-  int bPurgeable,              /* True if pages are on backing store */
-  int (*xStress)(void*,PgHdr*),/* Call to try to make pages clean */
-  void *pStress,               /* Argument to xStress */
-  PCache *p                    /* Preallocated space for the PCache */
-){
-  memset(p, 0, sizeof(PCache));
-  p->szPage = 1;
-  p->szExtra = szExtra;
-  assert( szExtra>=8 );  /* First 8 bytes will be zeroed */
-  p->bPurgeable = bPurgeable;
-  p->eCreate = 2;
-  p->xStress = xStress;
-  p->pStress = pStress;
-  p->szCache = 100;
-  p->szSpill = 1;
-  pcacheTrace(("%p.OPEN szPage %d bPurgeable %d\n",p,szPage,bPurgeable));
-  return tdsqlite3PcacheSetPageSize(p, szPage);
-}
-
-/*
-** Change the page size for PCache object. The caller must ensure that there
-** are no outstanding page references when this function is called.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheSetPageSize(PCache *pCache, int szPage){
-  assert( pCache->nRefSum==0 && pCache->pDirty==0 );
-  if( pCache->szPage ){
-    tdsqlite3_pcache *pNew;
-    pNew = tdsqlite3GlobalConfig.pcache2.xCreate(
-                szPage, pCache->szExtra + ROUND8(sizeof(PgHdr)),
-                pCache->bPurgeable
-    );
-    if( pNew==0 ) return SQLITE_NOMEM_BKPT;
-    tdsqlite3GlobalConfig.pcache2.xCachesize(pNew, numberOfCachePages(pCache));
-    if( pCache->pCache ){
-      tdsqlite3GlobalConfig.pcache2.xDestroy(pCache->pCache);
-    }
-    pCache->pCache = pNew;
-    pCache->szPage = szPage;
-    pcacheTrace(("%p.PAGESIZE %d\n",pCache,szPage));
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Try to obtain a page from the cache.
-**
-** This routine returns a pointer to an tdsqlite3_pcache_page object if
-** such an object is already in cache, or if a new one is created.
-** This routine returns a NULL pointer if the object was not in cache
-** and could not be created.
-**
-** The createFlags should be 0 to check for existing pages and should
-** be 3 (not 1, but 3) to try to create a new page.
-**
-** If the createFlag is 0, then NULL is always returned if the page
-** is not already in the cache.  If createFlag is 1, then a new page
-** is created only if that can be done without spilling dirty pages
-** and without exceeding the cache size limit.
-**
-** The caller needs to invoke tdsqlite3PcacheFetchFinish() to properly
-** initialize the tdsqlite3_pcache_page object and convert it into a
-** PgHdr object.  The tdsqlite3PcacheFetch() and tdsqlite3PcacheFetchFinish()
-** routines are split this way for performance reasons. When separated
-** they can both (usually) operate without having to push values to
-** the stack on entry and pop them back off on exit, which saves a
-** lot of pushing and popping.
-*/
-SQLITE_PRIVATE tdsqlite3_pcache_page *tdsqlite3PcacheFetch(
-  PCache *pCache,       /* Obtain the page from this cache */
-  Pgno pgno,            /* Page number to obtain */
-  int createFlag        /* If true, create page if it does not exist already */
-){
-  int eCreate;
-  tdsqlite3_pcache_page *pRes;
-
-  assert( pCache!=0 );
-  assert( pCache->pCache!=0 );
-  assert( createFlag==3 || createFlag==0 );
-  assert( pCache->eCreate==((pCache->bPurgeable && pCache->pDirty) ? 1 : 2) );
-
-  /* eCreate defines what to do if the page does not exist.
-  **    0     Do not allocate a new page.  (createFlag==0)
-  **    1     Allocate a new page if doing so is inexpensive.
-  **          (createFlag==1 AND bPurgeable AND pDirty)
-  **    2     Allocate a new page even it doing so is difficult.
-  **          (createFlag==1 AND !(bPurgeable AND pDirty)
-  */
-  eCreate = createFlag & pCache->eCreate;
-  assert( eCreate==0 || eCreate==1 || eCreate==2 );
-  assert( createFlag==0 || pCache->eCreate==eCreate );
-  assert( createFlag==0 || eCreate==1+(!pCache->bPurgeable||!pCache->pDirty) );
-  pRes = tdsqlite3GlobalConfig.pcache2.xFetch(pCache->pCache, pgno, eCreate);
-  pcacheTrace(("%p.FETCH %d%s (result: %p)\n",pCache,pgno,
-               createFlag?" create":"",pRes));
-  return pRes;
-}
-
-/*
-** If the tdsqlite3PcacheFetch() routine is unable to allocate a new
-** page because no clean pages are available for reuse and the cache
-** size limit has been reached, then this routine can be invoked to 
-** try harder to allocate a page.  This routine might invoke the stress
-** callback to spill dirty pages to the journal.  It will then try to
-** allocate the new page and will only fail to allocate a new page on
-** an OOM error.
-**
-** This routine should be invoked only after tdsqlite3PcacheFetch() fails.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheFetchStress(
-  PCache *pCache,                 /* Obtain the page from this cache */
-  Pgno pgno,                      /* Page number to obtain */
-  tdsqlite3_pcache_page **ppPage    /* Write result here */
-){
-  PgHdr *pPg;
-  if( pCache->eCreate==2 ) return 0;
-
-  if( tdsqlite3PcachePagecount(pCache)>pCache->szSpill ){
-    /* Find a dirty page to write-out and recycle. First try to find a 
-    ** page that does not require a journal-sync (one with PGHDR_NEED_SYNC
-    ** cleared), but if that is not possible settle for any other 
-    ** unreferenced dirty page.
-    **
-    ** If the LRU page in the dirty list that has a clear PGHDR_NEED_SYNC
-    ** flag is currently referenced, then the following may leave pSynced
-    ** set incorrectly (pointing to other than the LRU page with NEED_SYNC
-    ** cleared). This is Ok, as pSynced is just an optimization.  */
-    for(pPg=pCache->pSynced; 
-        pPg && (pPg->nRef || (pPg->flags&PGHDR_NEED_SYNC)); 
-        pPg=pPg->pDirtyPrev
-    );
-    pCache->pSynced = pPg;
-    if( !pPg ){
-      for(pPg=pCache->pDirtyTail; pPg && pPg->nRef; pPg=pPg->pDirtyPrev);
-    }
-    if( pPg ){
-      int rc;
-#ifdef SQLITE_LOG_CACHE_SPILL
-      tdsqlite3_log(SQLITE_FULL, 
-                  "spill page %d making room for %d - cache used: %d/%d",
-                  pPg->pgno, pgno,
-                  tdsqlite3GlobalConfig.pcache2.xPagecount(pCache->pCache),
-                numberOfCachePages(pCache));
-#endif
-      pcacheTrace(("%p.SPILL %d\n",pCache,pPg->pgno));
-      rc = pCache->xStress(pCache->pStress, pPg);
-      pcacheDump(pCache);
-      if( rc!=SQLITE_OK && rc!=SQLITE_BUSY ){
-        return rc;
-      }
-    }
-  }
-  *ppPage = tdsqlite3GlobalConfig.pcache2.xFetch(pCache->pCache, pgno, 2);
-  return *ppPage==0 ? SQLITE_NOMEM_BKPT : SQLITE_OK;
-}
-
-/*
-** This is a helper routine for tdsqlite3PcacheFetchFinish()
-**
-** In the uncommon case where the page being fetched has not been
-** initialized, this routine is invoked to do the initialization.
-** This routine is broken out into a separate function since it
-** requires extra stack manipulation that can be avoided in the common
-** case.
-*/
-static SQLITE_NOINLINE PgHdr *pcacheFetchFinishWithInit(
-  PCache *pCache,             /* Obtain the page from this cache */
-  Pgno pgno,                  /* Page number obtained */
-  tdsqlite3_pcache_page *pPage  /* Page obtained by prior PcacheFetch() call */
-){
-  PgHdr *pPgHdr;
-  assert( pPage!=0 );
-  pPgHdr = (PgHdr*)pPage->pExtra;
-  assert( pPgHdr->pPage==0 );
-  memset(&pPgHdr->pDirty, 0, sizeof(PgHdr) - offsetof(PgHdr,pDirty));
-  pPgHdr->pPage = pPage;
-  pPgHdr->pData = pPage->pBuf;
-  pPgHdr->pExtra = (void *)&pPgHdr[1];
-  memset(pPgHdr->pExtra, 0, 8);
-  pPgHdr->pCache = pCache;
-  pPgHdr->pgno = pgno;
-  pPgHdr->flags = PGHDR_CLEAN;
-  return tdsqlite3PcacheFetchFinish(pCache,pgno,pPage);
-}
-
-/*
-** This routine converts the tdsqlite3_pcache_page object returned by
-** tdsqlite3PcacheFetch() into an initialized PgHdr object.  This routine
-** must be called after tdsqlite3PcacheFetch() in order to get a usable
-** result.
-*/
-SQLITE_PRIVATE PgHdr *tdsqlite3PcacheFetchFinish(
-  PCache *pCache,             /* Obtain the page from this cache */
-  Pgno pgno,                  /* Page number obtained */
-  tdsqlite3_pcache_page *pPage  /* Page obtained by prior PcacheFetch() call */
-){
-  PgHdr *pPgHdr;
-
-  assert( pPage!=0 );
-  pPgHdr = (PgHdr *)pPage->pExtra;
-
-  if( !pPgHdr->pPage ){
-    return pcacheFetchFinishWithInit(pCache, pgno, pPage);
-  }
-  pCache->nRefSum++;
-  pPgHdr->nRef++;
-  assert( tdsqlite3PcachePageSanity(pPgHdr) );
-  return pPgHdr;
-}
-
-/*
-** Decrement the reference count on a page. If the page is clean and the
-** reference count drops to 0, then it is made eligible for recycling.
-*/
-SQLITE_PRIVATE void SQLITE_NOINLINE tdsqlite3PcacheRelease(PgHdr *p){
-  assert( p->nRef>0 );
-  p->pCache->nRefSum--;
-  if( (--p->nRef)==0 ){
-    if( p->flags&PGHDR_CLEAN ){
-      pcacheUnpin(p);
-    }else{
-      pcacheManageDirtyList(p, PCACHE_DIRTYLIST_FRONT);
-    }
-  }
-}
-
-/*
-** Increase the reference count of a supplied page by 1.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheRef(PgHdr *p){
-  assert(p->nRef>0);
-  assert( tdsqlite3PcachePageSanity(p) );
-  p->nRef++;
-  p->pCache->nRefSum++;
-}
-
-/*
-** Drop a page from the cache. There must be exactly one reference to the
-** page. This function deletes that reference, so after it returns the
-** page pointed to by p is invalid.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheDrop(PgHdr *p){
-  assert( p->nRef==1 );
-  assert( tdsqlite3PcachePageSanity(p) );
-  if( p->flags&PGHDR_DIRTY ){
-    pcacheManageDirtyList(p, PCACHE_DIRTYLIST_REMOVE);
-  }
-  p->pCache->nRefSum--;
-  tdsqlite3GlobalConfig.pcache2.xUnpin(p->pCache->pCache, p->pPage, 1);
-}
-
-/*
-** Make sure the page is marked as dirty. If it isn't dirty already,
-** make it so.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheMakeDirty(PgHdr *p){
-  assert( p->nRef>0 );
-  assert( tdsqlite3PcachePageSanity(p) );
-  if( p->flags & (PGHDR_CLEAN|PGHDR_DONT_WRITE) ){    /*OPTIMIZATION-IF-FALSE*/
-    p->flags &= ~PGHDR_DONT_WRITE;
-    if( p->flags & PGHDR_CLEAN ){
-      p->flags ^= (PGHDR_DIRTY|PGHDR_CLEAN);
-      pcacheTrace(("%p.DIRTY %d\n",p->pCache,p->pgno));
-      assert( (p->flags & (PGHDR_DIRTY|PGHDR_CLEAN))==PGHDR_DIRTY );
-      pcacheManageDirtyList(p, PCACHE_DIRTYLIST_ADD);
-    }
-    assert( tdsqlite3PcachePageSanity(p) );
-  }
-}
-
-/*
-** Make sure the page is marked as clean. If it isn't clean already,
-** make it so.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheMakeClean(PgHdr *p){
-  assert( tdsqlite3PcachePageSanity(p) );
-  assert( (p->flags & PGHDR_DIRTY)!=0 );
-  assert( (p->flags & PGHDR_CLEAN)==0 );
-  pcacheManageDirtyList(p, PCACHE_DIRTYLIST_REMOVE);
-  p->flags &= ~(PGHDR_DIRTY|PGHDR_NEED_SYNC|PGHDR_WRITEABLE);
-  p->flags |= PGHDR_CLEAN;
-  pcacheTrace(("%p.CLEAN %d\n",p->pCache,p->pgno));
-  assert( tdsqlite3PcachePageSanity(p) );
-  if( p->nRef==0 ){
-    pcacheUnpin(p);
-  }
-}
-
-/*
-** Make every page in the cache clean.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheCleanAll(PCache *pCache){
-  PgHdr *p;
-  pcacheTrace(("%p.CLEAN-ALL\n",pCache));
-  while( (p = pCache->pDirty)!=0 ){
-    tdsqlite3PcacheMakeClean(p);
-  }
-}
-
-/*
-** Clear the PGHDR_NEED_SYNC and PGHDR_WRITEABLE flag from all dirty pages.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheClearWritable(PCache *pCache){
-  PgHdr *p;
-  pcacheTrace(("%p.CLEAR-WRITEABLE\n",pCache));
-  for(p=pCache->pDirty; p; p=p->pDirtyNext){
-    p->flags &= ~(PGHDR_NEED_SYNC|PGHDR_WRITEABLE);
-  }
-  pCache->pSynced = pCache->pDirtyTail;
-}
-
-/*
-** Clear the PGHDR_NEED_SYNC flag from all dirty pages.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheClearSyncFlags(PCache *pCache){
-  PgHdr *p;
-  for(p=pCache->pDirty; p; p=p->pDirtyNext){
-    p->flags &= ~PGHDR_NEED_SYNC;
-  }
-  pCache->pSynced = pCache->pDirtyTail;
-}
-
-/*
-** Change the page number of page p to newPgno. 
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheMove(PgHdr *p, Pgno newPgno){
-  PCache *pCache = p->pCache;
-  assert( p->nRef>0 );
-  assert( newPgno>0 );
-  assert( tdsqlite3PcachePageSanity(p) );
-  pcacheTrace(("%p.MOVE %d -> %d\n",pCache,p->pgno,newPgno));
-  tdsqlite3GlobalConfig.pcache2.xRekey(pCache->pCache, p->pPage, p->pgno,newPgno);
-  p->pgno = newPgno;
-  if( (p->flags&PGHDR_DIRTY) && (p->flags&PGHDR_NEED_SYNC) ){
-    pcacheManageDirtyList(p, PCACHE_DIRTYLIST_FRONT);
-  }
-}
-
-/*
-** Drop every cache entry whose page number is greater than "pgno". The
-** caller must ensure that there are no outstanding references to any pages
-** other than page 1 with a page number greater than pgno.
-**
-** If there is a reference to page 1 and the pgno parameter passed to this
-** function is 0, then the data area associated with page 1 is zeroed, but
-** the page object is not dropped.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheTruncate(PCache *pCache, Pgno pgno){
-  if( pCache->pCache ){
-    PgHdr *p;
-    PgHdr *pNext;
-    pcacheTrace(("%p.TRUNCATE %d\n",pCache,pgno));
-    for(p=pCache->pDirty; p; p=pNext){
-      pNext = p->pDirtyNext;
-      /* This routine never gets call with a positive pgno except right
-      ** after tdsqlite3PcacheCleanAll().  So if there are dirty pages,
-      ** it must be that pgno==0.
-      */
-      assert( p->pgno>0 );
-      if( p->pgno>pgno ){
-        assert( p->flags&PGHDR_DIRTY );
-        tdsqlite3PcacheMakeClean(p);
-      }
-    }
-    if( pgno==0 && pCache->nRefSum ){
-      tdsqlite3_pcache_page *pPage1;
-      pPage1 = tdsqlite3GlobalConfig.pcache2.xFetch(pCache->pCache,1,0);
-      if( ALWAYS(pPage1) ){  /* Page 1 is always available in cache, because
-                             ** pCache->nRefSum>0 */
-        memset(pPage1->pBuf, 0, pCache->szPage);
-        pgno = 1;
-      }
-    }
-    tdsqlite3GlobalConfig.pcache2.xTruncate(pCache->pCache, pgno+1);
-  }
-}
-
-/*
-** Close a cache.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheClose(PCache *pCache){
-  assert( pCache->pCache!=0 );
-  pcacheTrace(("%p.CLOSE\n",pCache));
-  tdsqlite3GlobalConfig.pcache2.xDestroy(pCache->pCache);
-}
-
-/* 
-** Discard the contents of the cache.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheClear(PCache *pCache){
-  tdsqlite3PcacheTruncate(pCache, 0);
-}
-
-/*
-** Merge two lists of pages connected by pDirty and in pgno order.
-** Do not bother fixing the pDirtyPrev pointers.
-*/
-static PgHdr *pcacheMergeDirtyList(PgHdr *pA, PgHdr *pB){
-  PgHdr result, *pTail;
-  pTail = &result;
-  assert( pA!=0 && pB!=0 );
-  for(;;){
-    if( pA->pgno<pB->pgno ){
-      pTail->pDirty = pA;
-      pTail = pA;
-      pA = pA->pDirty;
-      if( pA==0 ){
-        pTail->pDirty = pB;
-        break;
-      }
-    }else{
-      pTail->pDirty = pB;
-      pTail = pB;
-      pB = pB->pDirty;
-      if( pB==0 ){
-        pTail->pDirty = pA;
-        break;
-      }
-    }
-  }
-  return result.pDirty;
-}
-
-/*
-** Sort the list of pages in accending order by pgno.  Pages are
-** connected by pDirty pointers.  The pDirtyPrev pointers are
-** corrupted by this sort.
-**
-** Since there cannot be more than 2^31 distinct pages in a database,
-** there cannot be more than 31 buckets required by the merge sorter.
-** One extra bucket is added to catch overflow in case something
-** ever changes to make the previous sentence incorrect.
-*/
-#define N_SORT_BUCKET  32
-static PgHdr *pcacheSortDirtyList(PgHdr *pIn){
-  PgHdr *a[N_SORT_BUCKET], *p;
-  int i;
-  memset(a, 0, sizeof(a));
-  while( pIn ){
-    p = pIn;
-    pIn = p->pDirty;
-    p->pDirty = 0;
-    for(i=0; ALWAYS(i<N_SORT_BUCKET-1); i++){
-      if( a[i]==0 ){
-        a[i] = p;
-        break;
-      }else{
-        p = pcacheMergeDirtyList(a[i], p);
-        a[i] = 0;
-      }
-    }
-    if( NEVER(i==N_SORT_BUCKET-1) ){
-      /* To get here, there need to be 2^(N_SORT_BUCKET) elements in
-      ** the input list.  But that is impossible.
-      */
-      a[i] = pcacheMergeDirtyList(a[i], p);
-    }
-  }
-  p = a[0];
-  for(i=1; i<N_SORT_BUCKET; i++){
-    if( a[i]==0 ) continue;
-    p = p ? pcacheMergeDirtyList(p, a[i]) : a[i];
-  }
-  return p;
-}
-
-/*
-** Return a list of all dirty pages in the cache, sorted by page number.
-*/
-SQLITE_PRIVATE PgHdr *tdsqlite3PcacheDirtyList(PCache *pCache){
-  PgHdr *p;
-  for(p=pCache->pDirty; p; p=p->pDirtyNext){
-    p->pDirty = p->pDirtyNext;
-  }
-  return pcacheSortDirtyList(pCache->pDirty);
-}
-
-/* 
-** Return the total number of references to all pages held by the cache.
-**
-** This is not the total number of pages referenced, but the sum of the
-** reference count for all pages.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheRefCount(PCache *pCache){
-  return pCache->nRefSum;
-}
-
-/*
-** Return the number of references to the page supplied as an argument.
-*/
-SQLITE_PRIVATE int tdsqlite3PcachePageRefcount(PgHdr *p){
-  return p->nRef;
-}
-
-/* 
-** Return the total number of pages in the cache.
-*/
-SQLITE_PRIVATE int tdsqlite3PcachePagecount(PCache *pCache){
-  assert( pCache->pCache!=0 );
-  return tdsqlite3GlobalConfig.pcache2.xPagecount(pCache->pCache);
-}
-
-#ifdef SQLITE_TEST
-/*
-** Get the suggested cache-size value.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheGetCachesize(PCache *pCache){
-  return numberOfCachePages(pCache);
-}
-#endif
-
-/*
-** Set the suggested cache-size value.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheSetCachesize(PCache *pCache, int mxPage){
-  assert( pCache->pCache!=0 );
-  pCache->szCache = mxPage;
-  tdsqlite3GlobalConfig.pcache2.xCachesize(pCache->pCache,
-                                         numberOfCachePages(pCache));
-}
-
-/*
-** Set the suggested cache-spill value.  Make no changes if if the
-** argument is zero.  Return the effective cache-spill size, which will
-** be the larger of the szSpill and szCache.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheSetSpillsize(PCache *p, int mxPage){
-  int res;
-  assert( p->pCache!=0 );
-  if( mxPage ){
-    if( mxPage<0 ){
-      mxPage = (int)((-1024*(i64)mxPage)/(p->szPage+p->szExtra));
-    }
-    p->szSpill = mxPage;
-  }
-  res = numberOfCachePages(p);
-  if( res<p->szSpill ) res = p->szSpill; 
-  return res;
-}
-
-/*
-** Free up as much memory as possible from the page cache.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheShrink(PCache *pCache){
-  assert( pCache->pCache!=0 );
-  tdsqlite3GlobalConfig.pcache2.xShrink(pCache->pCache);
-}
-
-/*
-** Return the size of the header added by this middleware layer
-** in the page-cache hierarchy.
-*/
-SQLITE_PRIVATE int tdsqlite3HeaderSizePcache(void){ return ROUND8(sizeof(PgHdr)); }
-
-/*
-** Return the number of dirty pages currently in the cache, as a percentage
-** of the configured cache size.
-*/
-SQLITE_PRIVATE int tdsqlite3PCachePercentDirty(PCache *pCache){
-  PgHdr *pDirty;
-  int nDirty = 0;
-  int nCache = numberOfCachePages(pCache);
-  for(pDirty=pCache->pDirty; pDirty; pDirty=pDirty->pDirtyNext) nDirty++;
-  return nCache ? (int)(((i64)nDirty * 100) / nCache) : 0;
-}
-
-#ifdef SQLITE_DIRECT_OVERFLOW_READ
-/* 
-** Return true if there are one or more dirty pages in the cache. Else false.
-*/
-SQLITE_PRIVATE int tdsqlite3PCacheIsDirty(PCache *pCache){
-  return (pCache->pDirty!=0);
-}
-#endif
-
-#if defined(SQLITE_CHECK_PAGES) || defined(SQLITE_DEBUG)
-/*
-** For all dirty pages currently in the cache, invoke the specified
-** callback. This is only used if the SQLITE_CHECK_PAGES macro is
-** defined.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheIterateDirty(PCache *pCache, void (*xIter)(PgHdr *)){
-  PgHdr *pDirty;
-  for(pDirty=pCache->pDirty; pDirty; pDirty=pDirty->pDirtyNext){
-    xIter(pDirty);
-  }
-}
-#endif
-
-/************** End of pcache.c **********************************************/
-/************** Begin file pcache1.c *****************************************/
-/*
-** 2008 November 05
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file implements the default page cache implementation (the
-** tdsqlite3_pcache interface). It also contains part of the implementation
-** of the SQLITE_CONFIG_PAGECACHE and tdsqlite3_release_memory() features.
-** If the default page cache implementation is overridden, then neither of
-** these two features are available.
-**
-** A Page cache line looks like this:
-**
-**  -------------------------------------------------------------
-**  |  database page content   |  PgHdr1  |  MemPage  |  PgHdr  |
-**  -------------------------------------------------------------
-**
-** The database page content is up front (so that buffer overreads tend to
-** flow harmlessly into the PgHdr1, MemPage, and PgHdr extensions).   MemPage
-** is the extension added by the btree.c module containing information such
-** as the database page number and how that database page is used.  PgHdr
-** is added by the pcache.c layer and contains information used to keep track
-** of which pages are "dirty".  PgHdr1 is an extension added by this
-** module (pcache1.c).  The PgHdr1 header is a subclass of tdsqlite3_pcache_page.
-** PgHdr1 contains information needed to look up a page by its page number.
-** The superclass tdsqlite3_pcache_page.pBuf points to the start of the
-** database page content and tdsqlite3_pcache_page.pExtra points to PgHdr.
-**
-** The size of the extension (MemPage+PgHdr+PgHdr1) can be determined at
-** runtime using tdsqlite3_config(SQLITE_CONFIG_PCACHE_HDRSZ, &size).  The
-** sizes of the extensions sum to 272 bytes on x64 for 3.8.10, but this
-** size can vary according to architecture, compile-time options, and
-** SQLite library version number.
-**
-** If SQLITE_PCACHE_SEPARATE_HEADER is defined, then the extension is obtained
-** using a separate memory allocation from the database page content.  This
-** seeks to overcome the "clownshoe" problem (also called "internal
-** fragmentation" in academic literature) of allocating a few bytes more
-** than a power of two with the memory allocator rounding up to the next
-** power of two, and leaving the rounded-up space unused.
-**
-** This module tracks pointers to PgHdr1 objects.  Only pcache.c communicates
-** with this module.  Information is passed back and forth as PgHdr1 pointers.
-**
-** The pcache.c and pager.c modules deal pointers to PgHdr objects.
-** The btree.c module deals with pointers to MemPage objects.
-**
-** SOURCE OF PAGE CACHE MEMORY:
-**
-** Memory for a page might come from any of three sources:
-**
-**    (1)  The general-purpose memory allocator - tdsqlite3Malloc()
-**    (2)  Global page-cache memory provided using tdsqlite3_config() with
-**         SQLITE_CONFIG_PAGECACHE.
-**    (3)  PCache-local bulk allocation.
-**
-** The third case is a chunk of heap memory (defaulting to 100 pages worth)
-** that is allocated when the page cache is created.  The size of the local
-** bulk allocation can be adjusted using 
-**
-**     tdsqlite3_config(SQLITE_CONFIG_PAGECACHE, (void*)0, 0, N).
-**
-** If N is positive, then N pages worth of memory are allocated using a single
-** tdsqlite3Malloc() call and that memory is used for the first N pages allocated.
-** Or if N is negative, then -1024*N bytes of memory are allocated and used
-** for as many pages as can be accomodated.
-**
-** Only one of (2) or (3) can be used.  Once the memory available to (2) or
-** (3) is exhausted, subsequent allocations fail over to the general-purpose
-** memory allocator (1).
-**
-** Earlier versions of SQLite used only methods (1) and (2).  But experiments
-** show that method (3) with N==100 provides about a 5% performance boost for
-** common workloads.
-*/
-/* #include "sqliteInt.h" */
-
-typedef struct PCache1 PCache1;
-typedef struct PgHdr1 PgHdr1;
-typedef struct PgFreeslot PgFreeslot;
-typedef struct PGroup PGroup;
-
-/*
-** Each cache entry is represented by an instance of the following 
-** structure. Unless SQLITE_PCACHE_SEPARATE_HEADER is defined, a buffer of
-** PgHdr1.pCache->szPage bytes is allocated directly before this structure 
-** in memory.
-**
-** Note: Variables isBulkLocal and isAnchor were once type "u8". That works,
-** but causes a 2-byte gap in the structure for most architectures (since 
-** pointers must be either 4 or 8-byte aligned). As this structure is located
-** in memory directly after the associated page data, if the database is
-** corrupt, code at the b-tree layer may overread the page buffer and 
-** read part of this structure before the corruption is detected. This
-** can cause a valgrind error if the unitialized gap is accessed. Using u16
-** ensures there is no such gap, and therefore no bytes of unitialized memory
-** in the structure.
-*/
-struct PgHdr1 {
-  tdsqlite3_pcache_page page;      /* Base class. Must be first. pBuf & pExtra */
-  unsigned int iKey;             /* Key value (page number) */
-  u16 isBulkLocal;               /* This page from bulk local storage */
-  u16 isAnchor;                  /* This is the PGroup.lru element */
-  PgHdr1 *pNext;                 /* Next in hash table chain */
-  PCache1 *pCache;               /* Cache that currently owns this page */
-  PgHdr1 *pLruNext;              /* Next in LRU list of unpinned pages */
-  PgHdr1 *pLruPrev;              /* Previous in LRU list of unpinned pages */
-                                 /* NB: pLruPrev is only valid if pLruNext!=0 */
-};
-
-/*
-** A page is pinned if it is not on the LRU list.  To be "pinned" means
-** that the page is in active use and must not be deallocated.
-*/
-#define PAGE_IS_PINNED(p)    ((p)->pLruNext==0)
-#define PAGE_IS_UNPINNED(p)  ((p)->pLruNext!=0)
-
-/* Each page cache (or PCache) belongs to a PGroup.  A PGroup is a set 
-** of one or more PCaches that are able to recycle each other's unpinned
-** pages when they are under memory pressure.  A PGroup is an instance of
-** the following object.
-**
-** This page cache implementation works in one of two modes:
-**
-**   (1)  Every PCache is the sole member of its own PGroup.  There is
-**        one PGroup per PCache.
-**
-**   (2)  There is a single global PGroup that all PCaches are a member
-**        of.
-**
-** Mode 1 uses more memory (since PCache instances are not able to rob
-** unused pages from other PCaches) but it also operates without a mutex,
-** and is therefore often faster.  Mode 2 requires a mutex in order to be
-** threadsafe, but recycles pages more efficiently.
-**
-** For mode (1), PGroup.mutex is NULL.  For mode (2) there is only a single
-** PGroup which is the pcache1.grp global variable and its mutex is
-** SQLITE_MUTEX_STATIC_LRU.
-*/
-struct PGroup {
-  tdsqlite3_mutex *mutex;          /* MUTEX_STATIC_LRU or NULL */
-  unsigned int nMaxPage;         /* Sum of nMax for purgeable caches */
-  unsigned int nMinPage;         /* Sum of nMin for purgeable caches */
-  unsigned int mxPinned;         /* nMaxpage + 10 - nMinPage */
-  unsigned int nPurgeable;       /* Number of purgeable pages allocated */
-  PgHdr1 lru;                    /* The beginning and end of the LRU list */
-};
-
-/* Each page cache is an instance of the following object.  Every
-** open database file (including each in-memory database and each
-** temporary or transient database) has a single page cache which
-** is an instance of this object.
-**
-** Pointers to structures of this type are cast and returned as 
-** opaque tdsqlite3_pcache* handles.
-*/
-struct PCache1 {
-  /* Cache configuration parameters. Page size (szPage) and the purgeable
-  ** flag (bPurgeable) and the pnPurgeable pointer are all set when the
-  ** cache is created and are never changed thereafter. nMax may be 
-  ** modified at any time by a call to the pcache1Cachesize() method.
-  ** The PGroup mutex must be held when accessing nMax.
-  */
-  PGroup *pGroup;                     /* PGroup this cache belongs to */
-  unsigned int *pnPurgeable;          /* Pointer to pGroup->nPurgeable */
-  int szPage;                         /* Size of database content section */
-  int szExtra;                        /* sizeof(MemPage)+sizeof(PgHdr) */
-  int szAlloc;                        /* Total size of one pcache line */
-  int bPurgeable;                     /* True if cache is purgeable */
-  unsigned int nMin;                  /* Minimum number of pages reserved */
-  unsigned int nMax;                  /* Configured "cache_size" value */
-  unsigned int n90pct;                /* nMax*9/10 */
-  unsigned int iMaxKey;               /* Largest key seen since xTruncate() */
-  unsigned int nPurgeableDummy;       /* pnPurgeable points here when not used*/
-
-  /* Hash table of all pages. The following variables may only be accessed
-  ** when the accessor is holding the PGroup mutex.
-  */
-  unsigned int nRecyclable;           /* Number of pages in the LRU list */
-  unsigned int nPage;                 /* Total number of pages in apHash */
-  unsigned int nHash;                 /* Number of slots in apHash[] */
-  PgHdr1 **apHash;                    /* Hash table for fast lookup by key */
-  PgHdr1 *pFree;                      /* List of unused pcache-local pages */
-  void *pBulk;                        /* Bulk memory used by pcache-local */
-};
-
-/*
-** Free slots in the allocator used to divide up the global page cache
-** buffer provided using the SQLITE_CONFIG_PAGECACHE mechanism.
-*/
-struct PgFreeslot {
-  PgFreeslot *pNext;  /* Next free slot */
-};
-
-/*
-** Global data used by this cache.
-*/
-static SQLITE_WSD struct PCacheGlobal {
-  PGroup grp;                    /* The global PGroup for mode (2) */
-
-  /* Variables related to SQLITE_CONFIG_PAGECACHE settings.  The
-  ** szSlot, nSlot, pStart, pEnd, nReserve, and isInit values are all
-  ** fixed at tdsqlite3_initialize() time and do not require mutex protection.
-  ** The nFreeSlot and pFree values do require mutex protection.
-  */
-  int isInit;                    /* True if initialized */
-  int separateCache;             /* Use a new PGroup for each PCache */
-  int nInitPage;                 /* Initial bulk allocation size */   
-  int szSlot;                    /* Size of each free slot */
-  int nSlot;                     /* The number of pcache slots */
-  int nReserve;                  /* Try to keep nFreeSlot above this */
-  void *pStart, *pEnd;           /* Bounds of global page cache memory */
-  /* Above requires no mutex.  Use mutex below for variable that follow. */
-  tdsqlite3_mutex *mutex;          /* Mutex for accessing the following: */
-  PgFreeslot *pFree;             /* Free page blocks */
-  int nFreeSlot;                 /* Number of unused pcache slots */
-  /* The following value requires a mutex to change.  We skip the mutex on
-  ** reading because (1) most platforms read a 32-bit integer atomically and
-  ** (2) even if an incorrect value is read, no great harm is done since this
-  ** is really just an optimization. */
-  int bUnderPressure;            /* True if low on PAGECACHE memory */
-} pcache1_g;
-
-/*
-** All code in this file should access the global structure above via the
-** alias "pcache1". This ensures that the WSD emulation is used when
-** compiling for systems that do not support real WSD.
-*/
-#define pcache1 (GLOBAL(struct PCacheGlobal, pcache1_g))
-
-/*
-** Macros to enter and leave the PCache LRU mutex.
-*/
-#if !defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0
-# define pcache1EnterMutex(X)  assert((X)->mutex==0)
-# define pcache1LeaveMutex(X)  assert((X)->mutex==0)
-# define PCACHE1_MIGHT_USE_GROUP_MUTEX 0
-#else
-# define pcache1EnterMutex(X) tdsqlite3_mutex_enter((X)->mutex)
-# define pcache1LeaveMutex(X) tdsqlite3_mutex_leave((X)->mutex)
-# define PCACHE1_MIGHT_USE_GROUP_MUTEX 1
-#endif
-
-/******************************************************************************/
-/******** Page Allocation/SQLITE_CONFIG_PCACHE Related Functions **************/
-
-
-/*
-** This function is called during initialization if a static buffer is 
-** supplied to use for the page-cache by passing the SQLITE_CONFIG_PAGECACHE
-** verb to tdsqlite3_config(). Parameter pBuf points to an allocation large
-** enough to contain 'n' buffers of 'sz' bytes each.
-**
-** This routine is called from tdsqlite3_initialize() and so it is guaranteed
-** to be serialized already.  There is no need for further mutexing.
-*/
-SQLITE_PRIVATE void tdsqlite3PCacheBufferSetup(void *pBuf, int sz, int n){
-  if( pcache1.isInit ){
-    PgFreeslot *p;
-    if( pBuf==0 ) sz = n = 0;
-    if( n==0 ) sz = 0;
-    sz = ROUNDDOWN8(sz);
-    pcache1.szSlot = sz;
-    pcache1.nSlot = pcache1.nFreeSlot = n;
-    pcache1.nReserve = n>90 ? 10 : (n/10 + 1);
-    pcache1.pStart = pBuf;
-    pcache1.pFree = 0;
-    pcache1.bUnderPressure = 0;
-    while( n-- ){
-      p = (PgFreeslot*)pBuf;
-      p->pNext = pcache1.pFree;
-      pcache1.pFree = p;
-      pBuf = (void*)&((char*)pBuf)[sz];
-    }
-    pcache1.pEnd = pBuf;
-  }
-}
-
-/*
-** Try to initialize the pCache->pFree and pCache->pBulk fields.  Return
-** true if pCache->pFree ends up containing one or more free pages.
-*/
-static int pcache1InitBulk(PCache1 *pCache){
-  i64 szBulk;
-  char *zBulk;
-  if( pcache1.nInitPage==0 ) return 0;
-  /* Do not bother with a bulk allocation if the cache size very small */
-  if( pCache->nMax<3 ) return 0;
-  tdsqlite3BeginBenignMalloc();
-  if( pcache1.nInitPage>0 ){
-    szBulk = pCache->szAlloc * (i64)pcache1.nInitPage;
-  }else{
-    szBulk = -1024 * (i64)pcache1.nInitPage;
-  }
-  if( szBulk > pCache->szAlloc*(i64)pCache->nMax ){
-    szBulk = pCache->szAlloc*(i64)pCache->nMax;
-  }
-  zBulk = pCache->pBulk = tdsqlite3Malloc( szBulk );
-  tdsqlite3EndBenignMalloc();
-  if( zBulk ){
-    int nBulk = tdsqlite3MallocSize(zBulk)/pCache->szAlloc;
-    do{
-      PgHdr1 *pX = (PgHdr1*)&zBulk[pCache->szPage];
-      pX->page.pBuf = zBulk;
-      pX->page.pExtra = &pX[1];
-      pX->isBulkLocal = 1;
-      pX->isAnchor = 0;
-      pX->pNext = pCache->pFree;
-      pX->pLruPrev = 0;           /* Initializing this saves a valgrind error */
-      pCache->pFree = pX;
-      zBulk += pCache->szAlloc;
-    }while( --nBulk );
-  }
-  return pCache->pFree!=0;
-}
-
-/*
-** Malloc function used within this file to allocate space from the buffer
-** configured using tdsqlite3_config(SQLITE_CONFIG_PAGECACHE) option. If no 
-** such buffer exists or there is no space left in it, this function falls 
-** back to tdsqlite3Malloc().
-**
-** Multiple threads can run this routine at the same time.  Global variables
-** in pcache1 need to be protected via mutex.
-*/
-static void *pcache1Alloc(int nByte){
-  void *p = 0;
-  assert( tdsqlite3_mutex_notheld(pcache1.grp.mutex) );
-  if( nByte<=pcache1.szSlot ){
-    tdsqlite3_mutex_enter(pcache1.mutex);
-    p = (PgHdr1 *)pcache1.pFree;
-    if( p ){
-      pcache1.pFree = pcache1.pFree->pNext;
-      pcache1.nFreeSlot--;
-      pcache1.bUnderPressure = pcache1.nFreeSlot<pcache1.nReserve;
-      assert( pcache1.nFreeSlot>=0 );
-      tdsqlite3StatusHighwater(SQLITE_STATUS_PAGECACHE_SIZE, nByte);
-      tdsqlite3StatusUp(SQLITE_STATUS_PAGECACHE_USED, 1);
-    }
-    tdsqlite3_mutex_leave(pcache1.mutex);
-  }
-  if( p==0 ){
-    /* Memory is not available in the SQLITE_CONFIG_PAGECACHE pool.  Get
-    ** it from tdsqlite3Malloc instead.
-    */
-    p = tdsqlite3Malloc(nByte);
-#ifndef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS
-    if( p ){
-      int sz = tdsqlite3MallocSize(p);
-      tdsqlite3_mutex_enter(pcache1.mutex);
-      tdsqlite3StatusHighwater(SQLITE_STATUS_PAGECACHE_SIZE, nByte);
-      tdsqlite3StatusUp(SQLITE_STATUS_PAGECACHE_OVERFLOW, sz);
-      tdsqlite3_mutex_leave(pcache1.mutex);
-    }
-#endif
-    tdsqlite3MemdebugSetType(p, MEMTYPE_PCACHE);
-  }
-  return p;
-}
-
-/*
-** Free an allocated buffer obtained from pcache1Alloc().
-*/
-static void pcache1Free(void *p){
-  if( p==0 ) return;
-  if( SQLITE_WITHIN(p, pcache1.pStart, pcache1.pEnd) ){
-    PgFreeslot *pSlot;
-    tdsqlite3_mutex_enter(pcache1.mutex);
-    tdsqlite3StatusDown(SQLITE_STATUS_PAGECACHE_USED, 1);
-    pSlot = (PgFreeslot*)p;
-    pSlot->pNext = pcache1.pFree;
-    pcache1.pFree = pSlot;
-    pcache1.nFreeSlot++;
-    pcache1.bUnderPressure = pcache1.nFreeSlot<pcache1.nReserve;
-    assert( pcache1.nFreeSlot<=pcache1.nSlot );
-    tdsqlite3_mutex_leave(pcache1.mutex);
-  }else{
-    assert( tdsqlite3MemdebugHasType(p, MEMTYPE_PCACHE) );
-    tdsqlite3MemdebugSetType(p, MEMTYPE_HEAP);
-#ifndef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS
-    {
-      int nFreed = 0;
-      nFreed = tdsqlite3MallocSize(p);
-      tdsqlite3_mutex_enter(pcache1.mutex);
-      tdsqlite3StatusDown(SQLITE_STATUS_PAGECACHE_OVERFLOW, nFreed);
-      tdsqlite3_mutex_leave(pcache1.mutex);
-    }
-#endif
-    tdsqlite3_free(p);
-  }
-}
-
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-/*
-** Return the size of a pcache allocation
-*/
-static int pcache1MemSize(void *p){
-  if( p>=pcache1.pStart && p<pcache1.pEnd ){
-    return pcache1.szSlot;
-  }else{
-    int iSize;
-    assert( tdsqlite3MemdebugHasType(p, MEMTYPE_PCACHE) );
-    tdsqlite3MemdebugSetType(p, MEMTYPE_HEAP);
-    iSize = tdsqlite3MallocSize(p);
-    tdsqlite3MemdebugSetType(p, MEMTYPE_PCACHE);
-    return iSize;
-  }
-}
-#endif /* SQLITE_ENABLE_MEMORY_MANAGEMENT */
-
-/*
-** Allocate a new page object initially associated with cache pCache.
-*/
-static PgHdr1 *pcache1AllocPage(PCache1 *pCache, int benignMalloc){
-  PgHdr1 *p = 0;
-  void *pPg;
-
-  assert( tdsqlite3_mutex_held(pCache->pGroup->mutex) );
-  if( pCache->pFree || (pCache->nPage==0 && pcache1InitBulk(pCache)) ){
-    assert( pCache->pFree!=0 );
-    p = pCache->pFree;
-    pCache->pFree = p->pNext;
-    p->pNext = 0;
-  }else{
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-    /* The group mutex must be released before pcache1Alloc() is called. This
-    ** is because it might call tdsqlite3_release_memory(), which assumes that 
-    ** this mutex is not held. */
-    assert( pcache1.separateCache==0 );
-    assert( pCache->pGroup==&pcache1.grp );
-    pcache1LeaveMutex(pCache->pGroup);
-#endif
-    if( benignMalloc ){ tdsqlite3BeginBenignMalloc(); }
-#ifdef SQLITE_PCACHE_SEPARATE_HEADER
-    pPg = pcache1Alloc(pCache->szPage);
-    p = tdsqlite3Malloc(sizeof(PgHdr1) + pCache->szExtra);
-    if( !pPg || !p ){
-      pcache1Free(pPg);
-      tdsqlite3_free(p);
-      pPg = 0;
-    }
-#else
-    pPg = pcache1Alloc(pCache->szAlloc);
-#endif
-    if( benignMalloc ){ tdsqlite3EndBenignMalloc(); }
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-    pcache1EnterMutex(pCache->pGroup);
-#endif
-    if( pPg==0 ) return 0;
-#ifndef SQLITE_PCACHE_SEPARATE_HEADER
-    p = (PgHdr1 *)&((u8 *)pPg)[pCache->szPage];
-#endif
-    p->page.pBuf = pPg;
-    p->page.pExtra = &p[1];
-    p->isBulkLocal = 0;
-    p->isAnchor = 0;
-  }
-  (*pCache->pnPurgeable)++;
-  return p;
-}
-
-/*
-** Free a page object allocated by pcache1AllocPage().
-*/
-static void pcache1FreePage(PgHdr1 *p){
-  PCache1 *pCache;
-  assert( p!=0 );
-  pCache = p->pCache;
-  assert( tdsqlite3_mutex_held(p->pCache->pGroup->mutex) );
-  if( p->isBulkLocal ){
-    p->pNext = pCache->pFree;
-    pCache->pFree = p;
-  }else{
-    pcache1Free(p->page.pBuf);
-#ifdef SQLITE_PCACHE_SEPARATE_HEADER
-    tdsqlite3_free(p);
-#endif
-  }
-  (*pCache->pnPurgeable)--;
-}
-
-/*
-** Malloc function used by SQLite to obtain space from the buffer configured
-** using tdsqlite3_config(SQLITE_CONFIG_PAGECACHE) option. If no such buffer
-** exists, this function falls back to tdsqlite3Malloc().
-*/
-SQLITE_PRIVATE void *tdsqlite3PageMalloc(int sz){
-  assert( sz<=65536+8 ); /* These allocations are never very large */
-  return pcache1Alloc(sz);
-}
-
-/*
-** Free an allocated buffer obtained from tdsqlite3PageMalloc().
-*/
-SQLITE_PRIVATE void tdsqlite3PageFree(void *p){
-  pcache1Free(p);
-}
-
-
-/*
-** Return true if it desirable to avoid allocating a new page cache
-** entry.
-**
-** If memory was allocated specifically to the page cache using
-** SQLITE_CONFIG_PAGECACHE but that memory has all been used, then
-** it is desirable to avoid allocating a new page cache entry because
-** presumably SQLITE_CONFIG_PAGECACHE was suppose to be sufficient
-** for all page cache needs and we should not need to spill the
-** allocation onto the heap.
-**
-** Or, the heap is used for all page cache memory but the heap is
-** under memory pressure, then again it is desirable to avoid
-** allocating a new page cache entry in order to avoid stressing
-** the heap even further.
-*/
-static int pcache1UnderMemoryPressure(PCache1 *pCache){
-  if( pcache1.nSlot && (pCache->szPage+pCache->szExtra)<=pcache1.szSlot ){
-    return pcache1.bUnderPressure;
-  }else{
-    return tdsqlite3HeapNearlyFull();
-  }
-}
-
-/******************************************************************************/
-/******** General Implementation Functions ************************************/
-
-/*
-** This function is used to resize the hash table used by the cache passed
-** as the first argument.
-**
-** The PCache mutex must be held when this function is called.
-*/
-static void pcache1ResizeHash(PCache1 *p){
-  PgHdr1 **apNew;
-  unsigned int nNew;
-  unsigned int i;
-
-  assert( tdsqlite3_mutex_held(p->pGroup->mutex) );
-
-  nNew = p->nHash*2;
-  if( nNew<256 ){
-    nNew = 256;
-  }
-
-  pcache1LeaveMutex(p->pGroup);
-  if( p->nHash ){ tdsqlite3BeginBenignMalloc(); }
-  apNew = (PgHdr1 **)tdsqlite3MallocZero(sizeof(PgHdr1 *)*nNew);
-  if( p->nHash ){ tdsqlite3EndBenignMalloc(); }
-  pcache1EnterMutex(p->pGroup);
-  if( apNew ){
-    for(i=0; i<p->nHash; i++){
-      PgHdr1 *pPage;
-      PgHdr1 *pNext = p->apHash[i];
-      while( (pPage = pNext)!=0 ){
-        unsigned int h = pPage->iKey % nNew;
-        pNext = pPage->pNext;
-        pPage->pNext = apNew[h];
-        apNew[h] = pPage;
-      }
-    }
-    tdsqlite3_free(p->apHash);
-    p->apHash = apNew;
-    p->nHash = nNew;
-  }
-}
-
-/*
-** This function is used internally to remove the page pPage from the 
-** PGroup LRU list, if is part of it. If pPage is not part of the PGroup
-** LRU list, then this function is a no-op.
-**
-** The PGroup mutex must be held when this function is called.
-*/
-static PgHdr1 *pcache1PinPage(PgHdr1 *pPage){
-  assert( pPage!=0 );
-  assert( PAGE_IS_UNPINNED(pPage) );
-  assert( pPage->pLruNext );
-  assert( pPage->pLruPrev );
-  assert( tdsqlite3_mutex_held(pPage->pCache->pGroup->mutex) );
-  pPage->pLruPrev->pLruNext = pPage->pLruNext;
-  pPage->pLruNext->pLruPrev = pPage->pLruPrev;
-  pPage->pLruNext = 0;
-  /* pPage->pLruPrev = 0;
-  ** No need to clear pLruPrev as it is never accessed if pLruNext is 0 */
-  assert( pPage->isAnchor==0 );
-  assert( pPage->pCache->pGroup->lru.isAnchor==1 );
-  pPage->pCache->nRecyclable--;
-  return pPage;
-}
-
-
-/*
-** Remove the page supplied as an argument from the hash table 
-** (PCache1.apHash structure) that it is currently stored in.
-** Also free the page if freePage is true.
-**
-** The PGroup mutex must be held when this function is called.
-*/
-static void pcache1RemoveFromHash(PgHdr1 *pPage, int freeFlag){
-  unsigned int h;
-  PCache1 *pCache = pPage->pCache;
-  PgHdr1 **pp;
-
-  assert( tdsqlite3_mutex_held(pCache->pGroup->mutex) );
-  h = pPage->iKey % pCache->nHash;
-  for(pp=&pCache->apHash[h]; (*pp)!=pPage; pp=&(*pp)->pNext);
-  *pp = (*pp)->pNext;
-
-  pCache->nPage--;
-  if( freeFlag ) pcache1FreePage(pPage);
-}
-
-/*
-** If there are currently more than nMaxPage pages allocated, try
-** to recycle pages to reduce the number allocated to nMaxPage.
-*/
-static void pcache1EnforceMaxPage(PCache1 *pCache){
-  PGroup *pGroup = pCache->pGroup;
-  PgHdr1 *p;
-  assert( tdsqlite3_mutex_held(pGroup->mutex) );
-  while( pGroup->nPurgeable>pGroup->nMaxPage
-      && (p=pGroup->lru.pLruPrev)->isAnchor==0
-  ){
-    assert( p->pCache->pGroup==pGroup );
-    assert( PAGE_IS_UNPINNED(p) );
-    pcache1PinPage(p);
-    pcache1RemoveFromHash(p, 1);
-  }
-  if( pCache->nPage==0 && pCache->pBulk ){
-    tdsqlite3_free(pCache->pBulk);
-    pCache->pBulk = pCache->pFree = 0;
-  }
-}
-
-/*
-** Discard all pages from cache pCache with a page number (key value) 
-** greater than or equal to iLimit. Any pinned pages that meet this 
-** criteria are unpinned before they are discarded.
-**
-** The PCache mutex must be held when this function is called.
-*/
-static void pcache1TruncateUnsafe(
-  PCache1 *pCache,             /* The cache to truncate */
-  unsigned int iLimit          /* Drop pages with this pgno or larger */
-){
-  TESTONLY( int nPage = 0; )  /* To assert pCache->nPage is correct */
-  unsigned int h, iStop;
-  assert( tdsqlite3_mutex_held(pCache->pGroup->mutex) );
-  assert( pCache->iMaxKey >= iLimit );
-  assert( pCache->nHash > 0 );
-  if( pCache->iMaxKey - iLimit < pCache->nHash ){
-    /* If we are just shaving the last few pages off the end of the
-    ** cache, then there is no point in scanning the entire hash table.
-    ** Only scan those hash slots that might contain pages that need to
-    ** be removed. */
-    h = iLimit % pCache->nHash;
-    iStop = pCache->iMaxKey % pCache->nHash;
-    TESTONLY( nPage = -10; )  /* Disable the pCache->nPage validity check */
-  }else{
-    /* This is the general case where many pages are being removed.
-    ** It is necessary to scan the entire hash table */
-    h = pCache->nHash/2;
-    iStop = h - 1;
-  }
-  for(;;){
-    PgHdr1 **pp;
-    PgHdr1 *pPage;
-    assert( h<pCache->nHash );
-    pp = &pCache->apHash[h]; 
-    while( (pPage = *pp)!=0 ){
-      if( pPage->iKey>=iLimit ){
-        pCache->nPage--;
-        *pp = pPage->pNext;
-        if( PAGE_IS_UNPINNED(pPage) ) pcache1PinPage(pPage);
-        pcache1FreePage(pPage);
-      }else{
-        pp = &pPage->pNext;
-        TESTONLY( if( nPage>=0 ) nPage++; )
-      }
-    }
-    if( h==iStop ) break;
-    h = (h+1) % pCache->nHash;
-  }
-  assert( nPage<0 || pCache->nPage==(unsigned)nPage );
-}
-
-/******************************************************************************/
-/******** tdsqlite3_pcache Methods **********************************************/
-
-/*
-** Implementation of the tdsqlite3_pcache.xInit method.
-*/
-static int pcache1Init(void *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  assert( pcache1.isInit==0 );
-  memset(&pcache1, 0, sizeof(pcache1));
-
-
-  /*
-  ** The pcache1.separateCache variable is true if each PCache has its own
-  ** private PGroup (mode-1).  pcache1.separateCache is false if the single
-  ** PGroup in pcache1.grp is used for all page caches (mode-2).
-  **
-  **   *  Always use a unified cache (mode-2) if ENABLE_MEMORY_MANAGEMENT
-  **
-  **   *  Use a unified cache in single-threaded applications that have
-  **      configured a start-time buffer for use as page-cache memory using
-  **      tdsqlite3_config(SQLITE_CONFIG_PAGECACHE, pBuf, sz, N) with non-NULL 
-  **      pBuf argument.
-  **
-  **   *  Otherwise use separate caches (mode-1)
-  */
-#if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT)
-  pcache1.separateCache = 0;
-#elif SQLITE_THREADSAFE
-  pcache1.separateCache = tdsqlite3GlobalConfig.pPage==0
-                          || tdsqlite3GlobalConfig.bCoreMutex>0;
-#else
-  pcache1.separateCache = tdsqlite3GlobalConfig.pPage==0;
-#endif
-
-#if SQLITE_THREADSAFE
-  if( tdsqlite3GlobalConfig.bCoreMutex ){
-    pcache1.grp.mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_LRU);
-    pcache1.mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_PMEM);
-  }
-#endif
-  if( pcache1.separateCache
-   && tdsqlite3GlobalConfig.nPage!=0
-   && tdsqlite3GlobalConfig.pPage==0
-  ){
-    pcache1.nInitPage = tdsqlite3GlobalConfig.nPage;
-  }else{
-    pcache1.nInitPage = 0;
-  }
-  pcache1.grp.mxPinned = 10;
-  pcache1.isInit = 1;
-  return SQLITE_OK;
-}
-
-/*
-** Implementation of the tdsqlite3_pcache.xShutdown method.
-** Note that the static mutex allocated in xInit does 
-** not need to be freed.
-*/
-static void pcache1Shutdown(void *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  assert( pcache1.isInit!=0 );
-  memset(&pcache1, 0, sizeof(pcache1));
-}
-
-/* forward declaration */
-static void pcache1Destroy(tdsqlite3_pcache *p);
-
-/*
-** Implementation of the tdsqlite3_pcache.xCreate method.
-**
-** Allocate a new cache.
-*/
-static tdsqlite3_pcache *pcache1Create(int szPage, int szExtra, int bPurgeable){
-  PCache1 *pCache;      /* The newly created page cache */
-  PGroup *pGroup;       /* The group the new page cache will belong to */
-  int sz;               /* Bytes of memory required to allocate the new cache */
-
-  assert( (szPage & (szPage-1))==0 && szPage>=512 && szPage<=65536 );
-  assert( szExtra < 300 );
-
-  sz = sizeof(PCache1) + sizeof(PGroup)*pcache1.separateCache;
-  pCache = (PCache1 *)tdsqlite3MallocZero(sz);
-  if( pCache ){
-    if( pcache1.separateCache ){
-      pGroup = (PGroup*)&pCache[1];
-      pGroup->mxPinned = 10;
-    }else{
-      pGroup = &pcache1.grp;
-    }
-    pcache1EnterMutex(pGroup);
-    if( pGroup->lru.isAnchor==0 ){
-      pGroup->lru.isAnchor = 1;
-      pGroup->lru.pLruPrev = pGroup->lru.pLruNext = &pGroup->lru;
-    }
-    pCache->pGroup = pGroup;
-    pCache->szPage = szPage;
-    pCache->szExtra = szExtra;
-    pCache->szAlloc = szPage + szExtra + ROUND8(sizeof(PgHdr1));
-    pCache->bPurgeable = (bPurgeable ? 1 : 0);
-    pcache1ResizeHash(pCache);
-    if( bPurgeable ){
-      pCache->nMin = 10;
-      pGroup->nMinPage += pCache->nMin;
-      pGroup->mxPinned = pGroup->nMaxPage + 10 - pGroup->nMinPage;
-      pCache->pnPurgeable = &pGroup->nPurgeable;
-    }else{
-      pCache->pnPurgeable = &pCache->nPurgeableDummy;
-    }
-    pcache1LeaveMutex(pGroup);
-    if( pCache->nHash==0 ){
-      pcache1Destroy((tdsqlite3_pcache*)pCache);
-      pCache = 0;
-    }
-  }
-  return (tdsqlite3_pcache *)pCache;
-}
-
-/*
-** Implementation of the tdsqlite3_pcache.xCachesize method. 
-**
-** Configure the cache_size limit for a cache.
-*/
-static void pcache1Cachesize(tdsqlite3_pcache *p, int nMax){
-  PCache1 *pCache = (PCache1 *)p;
-  if( pCache->bPurgeable ){
-    PGroup *pGroup = pCache->pGroup;
-    pcache1EnterMutex(pGroup);
-    pGroup->nMaxPage += (nMax - pCache->nMax);
-    pGroup->mxPinned = pGroup->nMaxPage + 10 - pGroup->nMinPage;
-    pCache->nMax = nMax;
-    pCache->n90pct = pCache->nMax*9/10;
-    pcache1EnforceMaxPage(pCache);
-    pcache1LeaveMutex(pGroup);
-  }
-}
-
-/*
-** Implementation of the tdsqlite3_pcache.xShrink method. 
-**
-** Free up as much memory as possible.
-*/
-static void pcache1Shrink(tdsqlite3_pcache *p){
-  PCache1 *pCache = (PCache1*)p;
-  if( pCache->bPurgeable ){
-    PGroup *pGroup = pCache->pGroup;
-    int savedMaxPage;
-    pcache1EnterMutex(pGroup);
-    savedMaxPage = pGroup->nMaxPage;
-    pGroup->nMaxPage = 0;
-    pcache1EnforceMaxPage(pCache);
-    pGroup->nMaxPage = savedMaxPage;
-    pcache1LeaveMutex(pGroup);
-  }
-}
-
-/*
-** Implementation of the tdsqlite3_pcache.xPagecount method. 
-*/
-static int pcache1Pagecount(tdsqlite3_pcache *p){
-  int n;
-  PCache1 *pCache = (PCache1*)p;
-  pcache1EnterMutex(pCache->pGroup);
-  n = pCache->nPage;
-  pcache1LeaveMutex(pCache->pGroup);
-  return n;
-}
-
-
-/*
-** Implement steps 3, 4, and 5 of the pcache1Fetch() algorithm described
-** in the header of the pcache1Fetch() procedure.
-**
-** This steps are broken out into a separate procedure because they are
-** usually not needed, and by avoiding the stack initialization required
-** for these steps, the main pcache1Fetch() procedure can run faster.
-*/
-static SQLITE_NOINLINE PgHdr1 *pcache1FetchStage2(
-  PCache1 *pCache, 
-  unsigned int iKey, 
-  int createFlag
-){
-  unsigned int nPinned;
-  PGroup *pGroup = pCache->pGroup;
-  PgHdr1 *pPage = 0;
-
-  /* Step 3: Abort if createFlag is 1 but the cache is nearly full */
-  assert( pCache->nPage >= pCache->nRecyclable );
-  nPinned = pCache->nPage - pCache->nRecyclable;
-  assert( pGroup->mxPinned == pGroup->nMaxPage + 10 - pGroup->nMinPage );
-  assert( pCache->n90pct == pCache->nMax*9/10 );
-  if( createFlag==1 && (
-        nPinned>=pGroup->mxPinned
-     || nPinned>=pCache->n90pct
-     || (pcache1UnderMemoryPressure(pCache) && pCache->nRecyclable<nPinned)
-  )){
-    return 0;
-  }
-
-  if( pCache->nPage>=pCache->nHash ) pcache1ResizeHash(pCache);
-  assert( pCache->nHash>0 && pCache->apHash );
-
-  /* Step 4. Try to recycle a page. */
-  if( pCache->bPurgeable
-   && !pGroup->lru.pLruPrev->isAnchor
-   && ((pCache->nPage+1>=pCache->nMax) || pcache1UnderMemoryPressure(pCache))
-  ){
-    PCache1 *pOther;
-    pPage = pGroup->lru.pLruPrev;
-    assert( PAGE_IS_UNPINNED(pPage) );
-    pcache1RemoveFromHash(pPage, 0);
-    pcache1PinPage(pPage);
-    pOther = pPage->pCache;
-    if( pOther->szAlloc != pCache->szAlloc ){
-      pcache1FreePage(pPage);
-      pPage = 0;
-    }else{
-      pGroup->nPurgeable -= (pOther->bPurgeable - pCache->bPurgeable);
-    }
-  }
-
-  /* Step 5. If a usable page buffer has still not been found, 
-  ** attempt to allocate a new one. 
-  */
-  if( !pPage ){
-    pPage = pcache1AllocPage(pCache, createFlag==1);
-  }
-
-  if( pPage ){
-    unsigned int h = iKey % pCache->nHash;
-    pCache->nPage++;
-    pPage->iKey = iKey;
-    pPage->pNext = pCache->apHash[h];
-    pPage->pCache = pCache;
-    pPage->pLruNext = 0;
-    /* pPage->pLruPrev = 0;
-    ** No need to clear pLruPrev since it is not accessed when pLruNext==0 */
-    *(void **)pPage->page.pExtra = 0;
-    pCache->apHash[h] = pPage;
-    if( iKey>pCache->iMaxKey ){
-      pCache->iMaxKey = iKey;
-    }
-  }
-  return pPage;
-}
-
-/*
-** Implementation of the tdsqlite3_pcache.xFetch method. 
-**
-** Fetch a page by key value.
-**
-** Whether or not a new page may be allocated by this function depends on
-** the value of the createFlag argument.  0 means do not allocate a new
-** page.  1 means allocate a new page if space is easily available.  2 
-** means to try really hard to allocate a new page.
-**
-** For a non-purgeable cache (a cache used as the storage for an in-memory
-** database) there is really no difference between createFlag 1 and 2.  So
-** the calling function (pcache.c) will never have a createFlag of 1 on
-** a non-purgeable cache.
-**
-** There are three different approaches to obtaining space for a page,
-** depending on the value of parameter createFlag (which may be 0, 1 or 2).
-**
-**   1. Regardless of the value of createFlag, the cache is searched for a 
-**      copy of the requested page. If one is found, it is returned.
-**
-**   2. If createFlag==0 and the page is not already in the cache, NULL is
-**      returned.
-**
-**   3. If createFlag is 1, and the page is not already in the cache, then
-**      return NULL (do not allocate a new page) if any of the following
-**      conditions are true:
-**
-**       (a) the number of pages pinned by the cache is greater than
-**           PCache1.nMax, or
-**
-**       (b) the number of pages pinned by the cache is greater than
-**           the sum of nMax for all purgeable caches, less the sum of 
-**           nMin for all other purgeable caches, or
-**
-**   4. If none of the first three conditions apply and the cache is marked
-**      as purgeable, and if one of the following is true:
-**
-**       (a) The number of pages allocated for the cache is already 
-**           PCache1.nMax, or
-**
-**       (b) The number of pages allocated for all purgeable caches is
-**           already equal to or greater than the sum of nMax for all
-**           purgeable caches,
-**
-**       (c) The system is under memory pressure and wants to avoid
-**           unnecessary pages cache entry allocations
-**
-**      then attempt to recycle a page from the LRU list. If it is the right
-**      size, return the recycled buffer. Otherwise, free the buffer and
-**      proceed to step 5. 
-**
-**   5. Otherwise, allocate and return a new page buffer.
-**
-** There are two versions of this routine.  pcache1FetchWithMutex() is
-** the general case.  pcache1FetchNoMutex() is a faster implementation for
-** the common case where pGroup->mutex is NULL.  The pcache1Fetch() wrapper
-** invokes the appropriate routine.
-*/
-static PgHdr1 *pcache1FetchNoMutex(
-  tdsqlite3_pcache *p, 
-  unsigned int iKey, 
-  int createFlag
-){
-  PCache1 *pCache = (PCache1 *)p;
-  PgHdr1 *pPage = 0;
-
-  /* Step 1: Search the hash table for an existing entry. */
-  pPage = pCache->apHash[iKey % pCache->nHash];
-  while( pPage && pPage->iKey!=iKey ){ pPage = pPage->pNext; }
-
-  /* Step 2: If the page was found in the hash table, then return it.
-  ** If the page was not in the hash table and createFlag is 0, abort.
-  ** Otherwise (page not in hash and createFlag!=0) continue with
-  ** subsequent steps to try to create the page. */
-  if( pPage ){
-    if( PAGE_IS_UNPINNED(pPage) ){
-      return pcache1PinPage(pPage);
-    }else{
-      return pPage;
-    }
-  }else if( createFlag ){
-    /* Steps 3, 4, and 5 implemented by this subroutine */
-    return pcache1FetchStage2(pCache, iKey, createFlag);
-  }else{
-    return 0;
-  }
-}
-#if PCACHE1_MIGHT_USE_GROUP_MUTEX
-static PgHdr1 *pcache1FetchWithMutex(
-  tdsqlite3_pcache *p, 
-  unsigned int iKey, 
-  int createFlag
-){
-  PCache1 *pCache = (PCache1 *)p;
-  PgHdr1 *pPage;
-
-  pcache1EnterMutex(pCache->pGroup);
-  pPage = pcache1FetchNoMutex(p, iKey, createFlag);
-  assert( pPage==0 || pCache->iMaxKey>=iKey );
-  pcache1LeaveMutex(pCache->pGroup);
-  return pPage;
-}
-#endif
-static tdsqlite3_pcache_page *pcache1Fetch(
-  tdsqlite3_pcache *p, 
-  unsigned int iKey, 
-  int createFlag
-){
-#if PCACHE1_MIGHT_USE_GROUP_MUTEX || defined(SQLITE_DEBUG)
-  PCache1 *pCache = (PCache1 *)p;
-#endif
-
-  assert( offsetof(PgHdr1,page)==0 );
-  assert( pCache->bPurgeable || createFlag!=1 );
-  assert( pCache->bPurgeable || pCache->nMin==0 );
-  assert( pCache->bPurgeable==0 || pCache->nMin==10 );
-  assert( pCache->nMin==0 || pCache->bPurgeable );
-  assert( pCache->nHash>0 );
-#if PCACHE1_MIGHT_USE_GROUP_MUTEX
-  if( pCache->pGroup->mutex ){
-    return (tdsqlite3_pcache_page*)pcache1FetchWithMutex(p, iKey, createFlag);
-  }else
-#endif
-  {
-    return (tdsqlite3_pcache_page*)pcache1FetchNoMutex(p, iKey, createFlag);
-  }
-}
-
-
-/*
-** Implementation of the tdsqlite3_pcache.xUnpin method.
-**
-** Mark a page as unpinned (eligible for asynchronous recycling).
-*/
-static void pcache1Unpin(
-  tdsqlite3_pcache *p, 
-  tdsqlite3_pcache_page *pPg, 
-  int reuseUnlikely
-){
-  PCache1 *pCache = (PCache1 *)p;
-  PgHdr1 *pPage = (PgHdr1 *)pPg;
-  PGroup *pGroup = pCache->pGroup;
- 
-  assert( pPage->pCache==pCache );
-  pcache1EnterMutex(pGroup);
-
-  /* It is an error to call this function if the page is already 
-  ** part of the PGroup LRU list.
-  */
-  assert( pPage->pLruNext==0 );
-  assert( PAGE_IS_PINNED(pPage) );
-
-  if( reuseUnlikely || pGroup->nPurgeable>pGroup->nMaxPage ){
-    pcache1RemoveFromHash(pPage, 1);
-  }else{
-    /* Add the page to the PGroup LRU list. */
-    PgHdr1 **ppFirst = &pGroup->lru.pLruNext;
-    pPage->pLruPrev = &pGroup->lru;
-    (pPage->pLruNext = *ppFirst)->pLruPrev = pPage;
-    *ppFirst = pPage;
-    pCache->nRecyclable++;
-  }
-
-  pcache1LeaveMutex(pCache->pGroup);
-}
-
-/*
-** Implementation of the tdsqlite3_pcache.xRekey method. 
-*/
-static void pcache1Rekey(
-  tdsqlite3_pcache *p,
-  tdsqlite3_pcache_page *pPg,
-  unsigned int iOld,
-  unsigned int iNew
-){
-  PCache1 *pCache = (PCache1 *)p;
-  PgHdr1 *pPage = (PgHdr1 *)pPg;
-  PgHdr1 **pp;
-  unsigned int h; 
-  assert( pPage->iKey==iOld );
-  assert( pPage->pCache==pCache );
-
-  pcache1EnterMutex(pCache->pGroup);
-
-  h = iOld%pCache->nHash;
-  pp = &pCache->apHash[h];
-  while( (*pp)!=pPage ){
-    pp = &(*pp)->pNext;
-  }
-  *pp = pPage->pNext;
-
-  h = iNew%pCache->nHash;
-  pPage->iKey = iNew;
-  pPage->pNext = pCache->apHash[h];
-  pCache->apHash[h] = pPage;
-  if( iNew>pCache->iMaxKey ){
-    pCache->iMaxKey = iNew;
-  }
-
-  pcache1LeaveMutex(pCache->pGroup);
-}
-
-/*
-** Implementation of the tdsqlite3_pcache.xTruncate method. 
-**
-** Discard all unpinned pages in the cache with a page number equal to
-** or greater than parameter iLimit. Any pinned pages with a page number
-** equal to or greater than iLimit are implicitly unpinned.
-*/
-static void pcache1Truncate(tdsqlite3_pcache *p, unsigned int iLimit){
-  PCache1 *pCache = (PCache1 *)p;
-  pcache1EnterMutex(pCache->pGroup);
-  if( iLimit<=pCache->iMaxKey ){
-    pcache1TruncateUnsafe(pCache, iLimit);
-    pCache->iMaxKey = iLimit-1;
-  }
-  pcache1LeaveMutex(pCache->pGroup);
-}
-
-/*
-** Implementation of the tdsqlite3_pcache.xDestroy method. 
-**
-** Destroy a cache allocated using pcache1Create().
-*/
-static void pcache1Destroy(tdsqlite3_pcache *p){
-  PCache1 *pCache = (PCache1 *)p;
-  PGroup *pGroup = pCache->pGroup;
-  assert( pCache->bPurgeable || (pCache->nMax==0 && pCache->nMin==0) );
-  pcache1EnterMutex(pGroup);
-  if( pCache->nPage ) pcache1TruncateUnsafe(pCache, 0);
-  assert( pGroup->nMaxPage >= pCache->nMax );
-  pGroup->nMaxPage -= pCache->nMax;
-  assert( pGroup->nMinPage >= pCache->nMin );
-  pGroup->nMinPage -= pCache->nMin;
-  pGroup->mxPinned = pGroup->nMaxPage + 10 - pGroup->nMinPage;
-  pcache1EnforceMaxPage(pCache);
-  pcache1LeaveMutex(pGroup);
-  tdsqlite3_free(pCache->pBulk);
-  tdsqlite3_free(pCache->apHash);
-  tdsqlite3_free(pCache);
-}
-
-/*
-** This function is called during initialization (tdsqlite3_initialize()) to
-** install the default pluggable cache module, assuming the user has not
-** already provided an alternative.
-*/
-SQLITE_PRIVATE void tdsqlite3PCacheSetDefault(void){
-  static const tdsqlite3_pcache_methods2 defaultMethods = {
-    1,                       /* iVersion */
-    0,                       /* pArg */
-    pcache1Init,             /* xInit */
-    pcache1Shutdown,         /* xShutdown */
-    pcache1Create,           /* xCreate */
-    pcache1Cachesize,        /* xCachesize */
-    pcache1Pagecount,        /* xPagecount */
-    pcache1Fetch,            /* xFetch */
-    pcache1Unpin,            /* xUnpin */
-    pcache1Rekey,            /* xRekey */
-    pcache1Truncate,         /* xTruncate */
-    pcache1Destroy,          /* xDestroy */
-    pcache1Shrink            /* xShrink */
-  };
-  tdsqlite3_config(SQLITE_CONFIG_PCACHE2, &defaultMethods);
-}
-
-/*
-** Return the size of the header on each page of this PCACHE implementation.
-*/
-SQLITE_PRIVATE int tdsqlite3HeaderSizePcache1(void){ return ROUND8(sizeof(PgHdr1)); }
-
-/*
-** Return the global mutex used by this PCACHE implementation.  The
-** tdsqlite3_status() routine needs access to this mutex.
-*/
-SQLITE_PRIVATE tdsqlite3_mutex *tdsqlite3Pcache1Mutex(void){
-  return pcache1.mutex;
-}
-
-#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-/*
-** This function is called to free superfluous dynamically allocated memory
-** held by the pager system. Memory in use by any SQLite pager allocated
-** by the current thread may be tdsqlite3_free()ed.
-**
-** nReq is the number of bytes of memory required. Once this much has
-** been released, the function returns. The return value is the total number 
-** of bytes of memory released.
-*/
-SQLITE_PRIVATE int tdsqlite3PcacheReleaseMemory(int nReq){
-  int nFree = 0;
-  assert( tdsqlite3_mutex_notheld(pcache1.grp.mutex) );
-  assert( tdsqlite3_mutex_notheld(pcache1.mutex) );
-  if( tdsqlite3GlobalConfig.pPage==0 ){
-    PgHdr1 *p;
-    pcache1EnterMutex(&pcache1.grp);
-    while( (nReq<0 || nFree<nReq)
-       &&  (p=pcache1.grp.lru.pLruPrev)!=0
-       &&  p->isAnchor==0
-    ){
-      nFree += pcache1MemSize(p->page.pBuf);
-#ifdef SQLITE_PCACHE_SEPARATE_HEADER
-      nFree += tdsqlite3MemSize(p);
-#endif
-      assert( PAGE_IS_UNPINNED(p) );
-      pcache1PinPage(p);
-      pcache1RemoveFromHash(p, 1);
-    }
-    pcache1LeaveMutex(&pcache1.grp);
-  }
-  return nFree;
-}
-#endif /* SQLITE_ENABLE_MEMORY_MANAGEMENT */
-
-#ifdef SQLITE_TEST
-/*
-** This function is used by test procedures to inspect the internal state
-** of the global cache.
-*/
-SQLITE_PRIVATE void tdsqlite3PcacheStats(
-  int *pnCurrent,      /* OUT: Total number of pages cached */
-  int *pnMax,          /* OUT: Global maximum cache size */
-  int *pnMin,          /* OUT: Sum of PCache1.nMin for purgeable caches */
-  int *pnRecyclable    /* OUT: Total number of pages available for recycling */
-){
-  PgHdr1 *p;
-  int nRecyclable = 0;
-  for(p=pcache1.grp.lru.pLruNext; p && !p->isAnchor; p=p->pLruNext){
-    assert( PAGE_IS_UNPINNED(p) );
-    nRecyclable++;
-  }
-  *pnCurrent = pcache1.grp.nPurgeable;
-  *pnMax = (int)pcache1.grp.nMaxPage;
-  *pnMin = (int)pcache1.grp.nMinPage;
-  *pnRecyclable = nRecyclable;
-}
-#endif
-
-/************** End of pcache1.c *********************************************/
-/************** Begin file rowset.c ******************************************/
-/*
-** 2008 December 3
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This module implements an object we call a "RowSet".
-**
-** The RowSet object is a collection of rowids.  Rowids
-** are inserted into the RowSet in an arbitrary order.  Inserts
-** can be intermixed with tests to see if a given rowid has been
-** previously inserted into the RowSet.
-**
-** After all inserts are finished, it is possible to extract the
-** elements of the RowSet in sorted order.  Once this extraction
-** process has started, no new elements may be inserted.
-**
-** Hence, the primitive operations for a RowSet are:
-**
-**    CREATE
-**    INSERT
-**    TEST
-**    SMALLEST
-**    DESTROY
-**
-** The CREATE and DESTROY primitives are the constructor and destructor,
-** obviously.  The INSERT primitive adds a new element to the RowSet.
-** TEST checks to see if an element is already in the RowSet.  SMALLEST
-** extracts the least value from the RowSet.
-**
-** The INSERT primitive might allocate additional memory.  Memory is
-** allocated in chunks so most INSERTs do no allocation.  There is an 
-** upper bound on the size of allocated memory.  No memory is freed
-** until DESTROY.
-**
-** The TEST primitive includes a "batch" number.  The TEST primitive
-** will only see elements that were inserted before the last change
-** in the batch number.  In other words, if an INSERT occurs between
-** two TESTs where the TESTs have the same batch nubmer, then the
-** value added by the INSERT will not be visible to the second TEST.
-** The initial batch number is zero, so if the very first TEST contains
-** a non-zero batch number, it will see all prior INSERTs.
-**
-** No INSERTs may occurs after a SMALLEST.  An assertion will fail if
-** that is attempted.
-**
-** The cost of an INSERT is roughly constant.  (Sometimes new memory
-** has to be allocated on an INSERT.)  The cost of a TEST with a new
-** batch number is O(NlogN) where N is the number of elements in the RowSet.
-** The cost of a TEST using the same batch number is O(logN).  The cost
-** of the first SMALLEST is O(NlogN).  Second and subsequent SMALLEST
-** primitives are constant time.  The cost of DESTROY is O(N).
-**
-** TEST and SMALLEST may not be used by the same RowSet.  This used to
-** be possible, but the feature was not used, so it was removed in order
-** to simplify the code.
-*/
-/* #include "sqliteInt.h" */
-
-
-/*
-** Target size for allocation chunks.
-*/
-#define ROWSET_ALLOCATION_SIZE 1024
-
-/*
-** The number of rowset entries per allocation chunk.
-*/
-#define ROWSET_ENTRY_PER_CHUNK  \
-                       ((ROWSET_ALLOCATION_SIZE-8)/sizeof(struct RowSetEntry))
-
-/*
-** Each entry in a RowSet is an instance of the following object.
-**
-** This same object is reused to store a linked list of trees of RowSetEntry
-** objects.  In that alternative use, pRight points to the next entry
-** in the list, pLeft points to the tree, and v is unused.  The
-** RowSet.pForest value points to the head of this forest list.
-*/
-struct RowSetEntry {            
-  i64 v;                        /* ROWID value for this entry */
-  struct RowSetEntry *pRight;   /* Right subtree (larger entries) or list */
-  struct RowSetEntry *pLeft;    /* Left subtree (smaller entries) */
-};
-
-/*
-** RowSetEntry objects are allocated in large chunks (instances of the
-** following structure) to reduce memory allocation overhead.  The
-** chunks are kept on a linked list so that they can be deallocated
-** when the RowSet is destroyed.
-*/
-struct RowSetChunk {
-  struct RowSetChunk *pNextChunk;        /* Next chunk on list of them all */
-  struct RowSetEntry aEntry[ROWSET_ENTRY_PER_CHUNK]; /* Allocated entries */
-};
-
-/*
-** A RowSet in an instance of the following structure.
-**
-** A typedef of this structure if found in sqliteInt.h.
-*/
-struct RowSet {
-  struct RowSetChunk *pChunk;    /* List of all chunk allocations */
-  tdsqlite3 *db;                   /* The database connection */
-  struct RowSetEntry *pEntry;    /* List of entries using pRight */
-  struct RowSetEntry *pLast;     /* Last entry on the pEntry list */
-  struct RowSetEntry *pFresh;    /* Source of new entry objects */
-  struct RowSetEntry *pForest;   /* List of binary trees of entries */
-  u16 nFresh;                    /* Number of objects on pFresh */
-  u16 rsFlags;                   /* Various flags */
-  int iBatch;                    /* Current insert batch */
-};
-
-/*
-** Allowed values for RowSet.rsFlags
-*/
-#define ROWSET_SORTED  0x01   /* True if RowSet.pEntry is sorted */
-#define ROWSET_NEXT    0x02   /* True if tdsqlite3RowSetNext() has been called */
-
-/*
-** Allocate a RowSet object.  Return NULL if a memory allocation
-** error occurs.
-*/
-SQLITE_PRIVATE RowSet *tdsqlite3RowSetInit(tdsqlite3 *db){
-  RowSet *p = tdsqlite3DbMallocRawNN(db, sizeof(*p));
-  if( p ){
-    int N = tdsqlite3DbMallocSize(db, p);
-    p->pChunk = 0;
-    p->db = db;
-    p->pEntry = 0;
-    p->pLast = 0;
-    p->pForest = 0;
-    p->pFresh = (struct RowSetEntry*)(ROUND8(sizeof(*p)) + (char*)p);
-    p->nFresh = (u16)((N - ROUND8(sizeof(*p)))/sizeof(struct RowSetEntry));
-    p->rsFlags = ROWSET_SORTED;
-    p->iBatch = 0;
-  }
-  return p;
-}
-
-/*
-** Deallocate all chunks from a RowSet.  This frees all memory that
-** the RowSet has allocated over its lifetime.  This routine is
-** the destructor for the RowSet.
-*/
-SQLITE_PRIVATE void tdsqlite3RowSetClear(void *pArg){
-  RowSet *p = (RowSet*)pArg;
-  struct RowSetChunk *pChunk, *pNextChunk;
-  for(pChunk=p->pChunk; pChunk; pChunk = pNextChunk){
-    pNextChunk = pChunk->pNextChunk;
-    tdsqlite3DbFree(p->db, pChunk);
-  }
-  p->pChunk = 0;
-  p->nFresh = 0;
-  p->pEntry = 0;
-  p->pLast = 0;
-  p->pForest = 0;
-  p->rsFlags = ROWSET_SORTED;
-}
-
-/*
-** Deallocate all chunks from a RowSet.  This frees all memory that
-** the RowSet has allocated over its lifetime.  This routine is
-** the destructor for the RowSet.
-*/
-SQLITE_PRIVATE void tdsqlite3RowSetDelete(void *pArg){
-  tdsqlite3RowSetClear(pArg);
-  tdsqlite3DbFree(((RowSet*)pArg)->db, pArg);
-}
-
-/*
-** Allocate a new RowSetEntry object that is associated with the
-** given RowSet.  Return a pointer to the new and completely uninitialized
-** objected.
-**
-** In an OOM situation, the RowSet.db->mallocFailed flag is set and this
-** routine returns NULL.
-*/
-static struct RowSetEntry *rowSetEntryAlloc(RowSet *p){
-  assert( p!=0 );
-  if( p->nFresh==0 ){  /*OPTIMIZATION-IF-FALSE*/
-    /* We could allocate a fresh RowSetEntry each time one is needed, but it
-    ** is more efficient to pull a preallocated entry from the pool */
-    struct RowSetChunk *pNew;
-    pNew = tdsqlite3DbMallocRawNN(p->db, sizeof(*pNew));
-    if( pNew==0 ){
-      return 0;
-    }
-    pNew->pNextChunk = p->pChunk;
-    p->pChunk = pNew;
-    p->pFresh = pNew->aEntry;
-    p->nFresh = ROWSET_ENTRY_PER_CHUNK;
-  }
-  p->nFresh--;
-  return p->pFresh++;
-}
-
-/*
-** Insert a new value into a RowSet.
-**
-** The mallocFailed flag of the database connection is set if a
-** memory allocation fails.
-*/
-SQLITE_PRIVATE void tdsqlite3RowSetInsert(RowSet *p, i64 rowid){
-  struct RowSetEntry *pEntry;  /* The new entry */
-  struct RowSetEntry *pLast;   /* The last prior entry */
-
-  /* This routine is never called after tdsqlite3RowSetNext() */
-  assert( p!=0 && (p->rsFlags & ROWSET_NEXT)==0 );
-
-  pEntry = rowSetEntryAlloc(p);
-  if( pEntry==0 ) return;
-  pEntry->v = rowid;
-  pEntry->pRight = 0;
-  pLast = p->pLast;
-  if( pLast ){
-    if( rowid<=pLast->v ){  /*OPTIMIZATION-IF-FALSE*/
-      /* Avoid unnecessary sorts by preserving the ROWSET_SORTED flags
-      ** where possible */
-      p->rsFlags &= ~ROWSET_SORTED;
-    }
-    pLast->pRight = pEntry;
-  }else{
-    p->pEntry = pEntry;
-  }
-  p->pLast = pEntry;
-}
-
-/*
-** Merge two lists of RowSetEntry objects.  Remove duplicates.
-**
-** The input lists are connected via pRight pointers and are 
-** assumed to each already be in sorted order.
-*/
-static struct RowSetEntry *rowSetEntryMerge(
-  struct RowSetEntry *pA,    /* First sorted list to be merged */
-  struct RowSetEntry *pB     /* Second sorted list to be merged */
-){
-  struct RowSetEntry head;
-  struct RowSetEntry *pTail;
-
-  pTail = &head;
-  assert( pA!=0 && pB!=0 );
-  for(;;){
-    assert( pA->pRight==0 || pA->v<=pA->pRight->v );
-    assert( pB->pRight==0 || pB->v<=pB->pRight->v );
-    if( pA->v<=pB->v ){
-      if( pA->v<pB->v ) pTail = pTail->pRight = pA;
-      pA = pA->pRight;
-      if( pA==0 ){
-        pTail->pRight = pB;
-        break;
-      }
-    }else{
-      pTail = pTail->pRight = pB;
-      pB = pB->pRight;
-      if( pB==0 ){
-        pTail->pRight = pA;
-        break;
-      }
-    }
-  }
-  return head.pRight;
-}
-
-/*
-** Sort all elements on the list of RowSetEntry objects into order of
-** increasing v.
-*/ 
-static struct RowSetEntry *rowSetEntrySort(struct RowSetEntry *pIn){
-  unsigned int i;
-  struct RowSetEntry *pNext, *aBucket[40];
-
-  memset(aBucket, 0, sizeof(aBucket));
-  while( pIn ){
-    pNext = pIn->pRight;
-    pIn->pRight = 0;
-    for(i=0; aBucket[i]; i++){
-      pIn = rowSetEntryMerge(aBucket[i], pIn);
-      aBucket[i] = 0;
-    }
-    aBucket[i] = pIn;
-    pIn = pNext;
-  }
-  pIn = aBucket[0];
-  for(i=1; i<sizeof(aBucket)/sizeof(aBucket[0]); i++){
-    if( aBucket[i]==0 ) continue;
-    pIn = pIn ? rowSetEntryMerge(pIn, aBucket[i]) : aBucket[i];
-  }
-  return pIn;
-}
-
-
-/*
-** The input, pIn, is a binary tree (or subtree) of RowSetEntry objects.
-** Convert this tree into a linked list connected by the pRight pointers
-** and return pointers to the first and last elements of the new list.
-*/
-static void rowSetTreeToList(
-  struct RowSetEntry *pIn,         /* Root of the input tree */
-  struct RowSetEntry **ppFirst,    /* Write head of the output list here */
-  struct RowSetEntry **ppLast      /* Write tail of the output list here */
-){
-  assert( pIn!=0 );
-  if( pIn->pLeft ){
-    struct RowSetEntry *p;
-    rowSetTreeToList(pIn->pLeft, ppFirst, &p);
-    p->pRight = pIn;
-  }else{
-    *ppFirst = pIn;
-  }
-  if( pIn->pRight ){
-    rowSetTreeToList(pIn->pRight, &pIn->pRight, ppLast);
-  }else{
-    *ppLast = pIn;
-  }
-  assert( (*ppLast)->pRight==0 );
-}
-
-
-/*
-** Convert a sorted list of elements (connected by pRight) into a binary
-** tree with depth of iDepth.  A depth of 1 means the tree contains a single
-** node taken from the head of *ppList.  A depth of 2 means a tree with
-** three nodes.  And so forth.
-**
-** Use as many entries from the input list as required and update the
-** *ppList to point to the unused elements of the list.  If the input
-** list contains too few elements, then construct an incomplete tree
-** and leave *ppList set to NULL.
-**
-** Return a pointer to the root of the constructed binary tree.
-*/
-static struct RowSetEntry *rowSetNDeepTree(
-  struct RowSetEntry **ppList,
-  int iDepth
-){
-  struct RowSetEntry *p;         /* Root of the new tree */
-  struct RowSetEntry *pLeft;     /* Left subtree */
-  if( *ppList==0 ){ /*OPTIMIZATION-IF-TRUE*/
-    /* Prevent unnecessary deep recursion when we run out of entries */
-    return 0; 
-  }
-  if( iDepth>1 ){   /*OPTIMIZATION-IF-TRUE*/
-    /* This branch causes a *balanced* tree to be generated.  A valid tree
-    ** is still generated without this branch, but the tree is wildly
-    ** unbalanced and inefficient. */
-    pLeft = rowSetNDeepTree(ppList, iDepth-1);
-    p = *ppList;
-    if( p==0 ){     /*OPTIMIZATION-IF-FALSE*/
-      /* It is safe to always return here, but the resulting tree
-      ** would be unbalanced */
-      return pLeft;
-    }
-    p->pLeft = pLeft;
-    *ppList = p->pRight;
-    p->pRight = rowSetNDeepTree(ppList, iDepth-1);
-  }else{
-    p = *ppList;
-    *ppList = p->pRight;
-    p->pLeft = p->pRight = 0;
-  }
-  return p;
-}
-
-/*
-** Convert a sorted list of elements into a binary tree. Make the tree
-** as deep as it needs to be in order to contain the entire list.
-*/
-static struct RowSetEntry *rowSetListToTree(struct RowSetEntry *pList){
-  int iDepth;           /* Depth of the tree so far */
-  struct RowSetEntry *p;       /* Current tree root */
-  struct RowSetEntry *pLeft;   /* Left subtree */
-
-  assert( pList!=0 );
-  p = pList;
-  pList = p->pRight;
-  p->pLeft = p->pRight = 0;
-  for(iDepth=1; pList; iDepth++){
-    pLeft = p;
-    p = pList;
-    pList = p->pRight;
-    p->pLeft = pLeft;
-    p->pRight = rowSetNDeepTree(&pList, iDepth);
-  }
-  return p;
-}
-
-/*
-** Extract the smallest element from the RowSet.
-** Write the element into *pRowid.  Return 1 on success.  Return
-** 0 if the RowSet is already empty.
-**
-** After this routine has been called, the tdsqlite3RowSetInsert()
-** routine may not be called again.
-**
-** This routine may not be called after tdsqlite3RowSetTest() has
-** been used.  Older versions of RowSet allowed that, but as the
-** capability was not used by the code generator, it was removed
-** for code economy.
-*/
-SQLITE_PRIVATE int tdsqlite3RowSetNext(RowSet *p, i64 *pRowid){
-  assert( p!=0 );
-  assert( p->pForest==0 );  /* Cannot be used with tdsqlite3RowSetText() */
-
-  /* Merge the forest into a single sorted list on first call */
-  if( (p->rsFlags & ROWSET_NEXT)==0 ){  /*OPTIMIZATION-IF-FALSE*/
-    if( (p->rsFlags & ROWSET_SORTED)==0 ){  /*OPTIMIZATION-IF-FALSE*/
-      p->pEntry = rowSetEntrySort(p->pEntry);
-    }
-    p->rsFlags |= ROWSET_SORTED|ROWSET_NEXT;
-  }
-
-  /* Return the next entry on the list */
-  if( p->pEntry ){
-    *pRowid = p->pEntry->v;
-    p->pEntry = p->pEntry->pRight;
-    if( p->pEntry==0 ){ /*OPTIMIZATION-IF-TRUE*/
-      /* Free memory immediately, rather than waiting on tdsqlite3_finalize() */
-      tdsqlite3RowSetClear(p);
-    }
-    return 1;
-  }else{
-    return 0;
-  }
-}
-
-/*
-** Check to see if element iRowid was inserted into the rowset as
-** part of any insert batch prior to iBatch.  Return 1 or 0.
-**
-** If this is the first test of a new batch and if there exist entries
-** on pRowSet->pEntry, then sort those entries into the forest at
-** pRowSet->pForest so that they can be tested.
-*/
-SQLITE_PRIVATE int tdsqlite3RowSetTest(RowSet *pRowSet, int iBatch, tdsqlite3_int64 iRowid){
-  struct RowSetEntry *p, *pTree;
-
-  /* This routine is never called after tdsqlite3RowSetNext() */
-  assert( pRowSet!=0 && (pRowSet->rsFlags & ROWSET_NEXT)==0 );
-
-  /* Sort entries into the forest on the first test of a new batch.
-  ** To save unnecessary work, only do this when the batch number changes.
-  */
-  if( iBatch!=pRowSet->iBatch ){  /*OPTIMIZATION-IF-FALSE*/
-    p = pRowSet->pEntry;
-    if( p ){
-      struct RowSetEntry **ppPrevTree = &pRowSet->pForest;
-      if( (pRowSet->rsFlags & ROWSET_SORTED)==0 ){ /*OPTIMIZATION-IF-FALSE*/
-        /* Only sort the current set of entiries if they need it */
-        p = rowSetEntrySort(p);
-      }
-      for(pTree = pRowSet->pForest; pTree; pTree=pTree->pRight){
-        ppPrevTree = &pTree->pRight;
-        if( pTree->pLeft==0 ){
-          pTree->pLeft = rowSetListToTree(p);
-          break;
-        }else{
-          struct RowSetEntry *pAux, *pTail;
-          rowSetTreeToList(pTree->pLeft, &pAux, &pTail);
-          pTree->pLeft = 0;
-          p = rowSetEntryMerge(pAux, p);
-        }
-      }
-      if( pTree==0 ){
-        *ppPrevTree = pTree = rowSetEntryAlloc(pRowSet);
-        if( pTree ){
-          pTree->v = 0;
-          pTree->pRight = 0;
-          pTree->pLeft = rowSetListToTree(p);
-        }
-      }
-      pRowSet->pEntry = 0;
-      pRowSet->pLast = 0;
-      pRowSet->rsFlags |= ROWSET_SORTED;
-    }
-    pRowSet->iBatch = iBatch;
-  }
-
-  /* Test to see if the iRowid value appears anywhere in the forest.
-  ** Return 1 if it does and 0 if not.
-  */
-  for(pTree = pRowSet->pForest; pTree; pTree=pTree->pRight){
-    p = pTree->pLeft;
-    while( p ){
-      if( p->v<iRowid ){
-        p = p->pRight;
-      }else if( p->v>iRowid ){
-        p = p->pLeft;
-      }else{
-        return 1;
-      }
-    }
-  }
-  return 0;
-}
-
-/************** End of rowset.c **********************************************/
-/************** Begin file pager.c *******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This is the implementation of the page cache subsystem or "pager".
-** 
-** The pager is used to access a database disk file.  It implements
-** atomic commit and rollback through the use of a journal file that
-** is separate from the database file.  The pager also implements file
-** locking to prevent two processes from writing the same database
-** file simultaneously, or one process from reading the database while
-** another is writing.
-*/
-#ifndef SQLITE_OMIT_DISKIO
-/* #include "sqliteInt.h" */
-/************** Include wal.h in the middle of pager.c ***********************/
-/************** Begin file wal.h *********************************************/
-/*
-** 2010 February 1
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the interface to the write-ahead logging 
-** system. Refer to the comments below and the header comment attached to 
-** the implementation of each function in log.c for further details.
-*/
-
-#ifndef SQLITE_WAL_H
-#define SQLITE_WAL_H
-
-/* #include "sqliteInt.h" */
-
-/* Macros for extracting appropriate sync flags for either transaction
-** commits (WAL_SYNC_FLAGS(X)) or for checkpoint ops (CKPT_SYNC_FLAGS(X)):
-*/
-#define WAL_SYNC_FLAGS(X)   ((X)&0x03)
-#define CKPT_SYNC_FLAGS(X)  (((X)>>2)&0x03)
-
-#ifdef SQLITE_OMIT_WAL
-# define tdsqlite3WalOpen(x,y,z)                   0
-# define tdsqlite3WalLimit(x,y)
-# define tdsqlite3WalClose(v,w,x,y,z)              0
-# define tdsqlite3WalBeginReadTransaction(y,z)     0
-# define tdsqlite3WalEndReadTransaction(z)
-# define tdsqlite3WalDbsize(y)                     0
-# define tdsqlite3WalBeginWriteTransaction(y)      0
-# define tdsqlite3WalEndWriteTransaction(x)        0
-# define tdsqlite3WalUndo(x,y,z)                   0
-# define tdsqlite3WalSavepoint(y,z)
-# define tdsqlite3WalSavepointUndo(y,z)            0
-# define tdsqlite3WalFrames(u,v,w,x,y,z)           0
-# define tdsqlite3WalCheckpoint(q,r,s,t,u,v,w,x,y,z) 0
-# define tdsqlite3WalCallback(z)                   0
-# define tdsqlite3WalExclusiveMode(y,z)            0
-# define tdsqlite3WalHeapMemory(z)                 0
-# define tdsqlite3WalFramesize(z)                  0
-# define tdsqlite3WalFindFrame(x,y,z)              0
-# define tdsqlite3WalFile(x)                       0
-#else
-
-#define WAL_SAVEPOINT_NDATA 4
-
-/* Connection to a write-ahead log (WAL) file. 
-** There is one object of this type for each pager. 
-*/
-typedef struct Wal Wal;
-
-/* Open and close a connection to a write-ahead log. */
-SQLITE_PRIVATE int tdsqlite3WalOpen(tdsqlite3_vfs*, tdsqlite3_file*, const char *, int, i64, Wal**);
-SQLITE_PRIVATE int tdsqlite3WalClose(Wal *pWal, tdsqlite3*, int sync_flags, int, u8 *);
-
-/* Set the limiting size of a WAL file. */
-SQLITE_PRIVATE void tdsqlite3WalLimit(Wal*, i64);
-
-/* Used by readers to open (lock) and close (unlock) a snapshot.  A 
-** snapshot is like a read-transaction.  It is the state of the database
-** at an instant in time.  tdsqlite3WalOpenSnapshot gets a read lock and
-** preserves the current state even if the other threads or processes
-** write to or checkpoint the WAL.  tdsqlite3WalCloseSnapshot() closes the
-** transaction and releases the lock.
-*/
-SQLITE_PRIVATE int tdsqlite3WalBeginReadTransaction(Wal *pWal, int *);
-SQLITE_PRIVATE void tdsqlite3WalEndReadTransaction(Wal *pWal);
-
-/* Read a page from the write-ahead log, if it is present. */
-SQLITE_PRIVATE int tdsqlite3WalFindFrame(Wal *, Pgno, u32 *);
-SQLITE_PRIVATE int tdsqlite3WalReadFrame(Wal *, u32, int, u8 *);
-
-/* If the WAL is not empty, return the size of the database. */
-SQLITE_PRIVATE Pgno tdsqlite3WalDbsize(Wal *pWal);
-
-/* Obtain or release the WRITER lock. */
-SQLITE_PRIVATE int tdsqlite3WalBeginWriteTransaction(Wal *pWal);
-SQLITE_PRIVATE int tdsqlite3WalEndWriteTransaction(Wal *pWal);
-
-/* Undo any frames written (but not committed) to the log */
-SQLITE_PRIVATE int tdsqlite3WalUndo(Wal *pWal, int (*xUndo)(void *, Pgno), void *pUndoCtx);
-
-/* Return an integer that records the current (uncommitted) write
-** position in the WAL */
-SQLITE_PRIVATE void tdsqlite3WalSavepoint(Wal *pWal, u32 *aWalData);
-
-/* Move the write position of the WAL back to iFrame.  Called in
-** response to a ROLLBACK TO command. */
-SQLITE_PRIVATE int tdsqlite3WalSavepointUndo(Wal *pWal, u32 *aWalData);
-
-/* Write a frame or frames to the log. */
-SQLITE_PRIVATE int tdsqlite3WalFrames(Wal *pWal, int, PgHdr *, Pgno, int, int);
-
-/* Copy pages from the log to the database file */ 
-SQLITE_PRIVATE int tdsqlite3WalCheckpoint(
-  Wal *pWal,                      /* Write-ahead log connection */
-  tdsqlite3 *db,                    /* Check this handle's interrupt flag */
-  int eMode,                      /* One of PASSIVE, FULL and RESTART */
-  int (*xBusy)(void*),            /* Function to call when busy */
-  void *pBusyArg,                 /* Context argument for xBusyHandler */
-  int sync_flags,                 /* Flags to sync db file with (or 0) */
-  int nBuf,                       /* Size of buffer nBuf */
-  u8 *zBuf,                       /* Temporary buffer to use */
-  int *pnLog,                     /* OUT: Number of frames in WAL */
-  int *pnCkpt                     /* OUT: Number of backfilled frames in WAL */
-);
-
-/* Return the value to pass to a tdsqlite3_wal_hook callback, the
-** number of frames in the WAL at the point of the last commit since
-** tdsqlite3WalCallback() was called.  If no commits have occurred since
-** the last call, then return 0.
-*/
-SQLITE_PRIVATE int tdsqlite3WalCallback(Wal *pWal);
-
-/* Tell the wal layer that an EXCLUSIVE lock has been obtained (or released)
-** by the pager layer on the database file.
-*/
-SQLITE_PRIVATE int tdsqlite3WalExclusiveMode(Wal *pWal, int op);
-
-/* Return true if the argument is non-NULL and the WAL module is using
-** heap-memory for the wal-index. Otherwise, if the argument is NULL or the
-** WAL module is using shared-memory, return false. 
-*/
-SQLITE_PRIVATE int tdsqlite3WalHeapMemory(Wal *pWal);
-
-#ifdef SQLITE_ENABLE_SNAPSHOT
-SQLITE_PRIVATE int tdsqlite3WalSnapshotGet(Wal *pWal, tdsqlite3_snapshot **ppSnapshot);
-SQLITE_PRIVATE void tdsqlite3WalSnapshotOpen(Wal *pWal, tdsqlite3_snapshot *pSnapshot);
-SQLITE_PRIVATE int tdsqlite3WalSnapshotRecover(Wal *pWal);
-SQLITE_PRIVATE int tdsqlite3WalSnapshotCheck(Wal *pWal, tdsqlite3_snapshot *pSnapshot);
-SQLITE_PRIVATE void tdsqlite3WalSnapshotUnlock(Wal *pWal);
-#endif
-
-#ifdef SQLITE_ENABLE_ZIPVFS
-/* If the WAL file is not empty, return the number of bytes of content
-** stored in each frame (i.e. the db page-size when the WAL was created).
-*/
-SQLITE_PRIVATE int tdsqlite3WalFramesize(Wal *pWal);
-#endif
-
-/* Return the tdsqlite3_file object for the WAL file */
-SQLITE_PRIVATE tdsqlite3_file *tdsqlite3WalFile(Wal *pWal);
-
-#endif /* ifndef SQLITE_OMIT_WAL */
-#endif /* SQLITE_WAL_H */
-
-/************** End of wal.h *************************************************/
-/************** Continuing where we left off in pager.c **********************/
-
-
-/******************* NOTES ON THE DESIGN OF THE PAGER ************************
-**
-** This comment block describes invariants that hold when using a rollback
-** journal.  These invariants do not apply for journal_mode=WAL,
-** journal_mode=MEMORY, or journal_mode=OFF.
-**
-** Within this comment block, a page is deemed to have been synced
-** automatically as soon as it is written when PRAGMA synchronous=OFF.
-** Otherwise, the page is not synced until the xSync method of the VFS
-** is called successfully on the file containing the page.
-**
-** Definition:  A page of the database file is said to be "overwriteable" if
-** one or more of the following are true about the page:
-** 
-**     (a)  The original content of the page as it was at the beginning of
-**          the transaction has been written into the rollback journal and
-**          synced.
-** 
-**     (b)  The page was a freelist leaf page at the start of the transaction.
-** 
-**     (c)  The page number is greater than the largest page that existed in
-**          the database file at the start of the transaction.
-** 
-** (1) A page of the database file is never overwritten unless one of the
-**     following are true:
-** 
-**     (a) The page and all other pages on the same sector are overwriteable.
-** 
-**     (b) The atomic page write optimization is enabled, and the entire
-**         transaction other than the update of the transaction sequence
-**         number consists of a single page change.
-** 
-** (2) The content of a page written into the rollback journal exactly matches
-**     both the content in the database when the rollback journal was written
-**     and the content in the database at the beginning of the current
-**     transaction.
-** 
-** (3) Writes to the database file are an integer multiple of the page size
-**     in length and are aligned on a page boundary.
-** 
-** (4) Reads from the database file are either aligned on a page boundary and
-**     an integer multiple of the page size in length or are taken from the
-**     first 100 bytes of the database file.
-** 
-** (5) All writes to the database file are synced prior to the rollback journal
-**     being deleted, truncated, or zeroed.
-** 
-** (6) If a master journal file is used, then all writes to the database file
-**     are synced prior to the master journal being deleted.
-** 
-** Definition: Two databases (or the same database at two points it time)
-** are said to be "logically equivalent" if they give the same answer to
-** all queries.  Note in particular the content of freelist leaf
-** pages can be changed arbitrarily without affecting the logical equivalence
-** of the database.
-** 
-** (7) At any time, if any subset, including the empty set and the total set,
-**     of the unsynced changes to a rollback journal are removed and the 
-**     journal is rolled back, the resulting database file will be logically
-**     equivalent to the database file at the beginning of the transaction.
-** 
-** (8) When a transaction is rolled back, the xTruncate method of the VFS
-**     is called to restore the database file to the same size it was at
-**     the beginning of the transaction.  (In some VFSes, the xTruncate
-**     method is a no-op, but that does not change the fact the SQLite will
-**     invoke it.)
-** 
-** (9) Whenever the database file is modified, at least one bit in the range
-**     of bytes from 24 through 39 inclusive will be changed prior to releasing
-**     the EXCLUSIVE lock, thus signaling other connections on the same
-**     database to flush their caches.
-**
-** (10) The pattern of bits in bytes 24 through 39 shall not repeat in less
-**      than one billion transactions.
-**
-** (11) A database file is well-formed at the beginning and at the conclusion
-**      of every transaction.
-**
-** (12) An EXCLUSIVE lock is held on the database file when writing to
-**      the database file.
-**
-** (13) A SHARED lock is held on the database file while reading any
-**      content out of the database file.
-**
-******************************************************************************/
-
-/*
-** Macros for troubleshooting.  Normally turned off
-*/
-#if 0
-int tdsqlite3PagerTrace=1;  /* True to enable tracing */
-#define tdsqlite3DebugPrintf printf
-#define PAGERTRACE(X)     if( tdsqlite3PagerTrace ){ tdsqlite3DebugPrintf X; }
-#else
-#define PAGERTRACE(X)
-#endif
-
-/*
-** The following two macros are used within the PAGERTRACE() macros above
-** to print out file-descriptors. 
-**
-** PAGERID() takes a pointer to a Pager struct as its argument. The
-** associated file-descriptor is returned. FILEHANDLEID() takes an tdsqlite3_file
-** struct as its argument.
-*/
-#define PAGERID(p) (SQLITE_PTR_TO_INT(p->fd))
-#define FILEHANDLEID(fd) (SQLITE_PTR_TO_INT(fd))
-
-/*
-** The Pager.eState variable stores the current 'state' of a pager. A
-** pager may be in any one of the seven states shown in the following
-** state diagram.
-**
-**                            OPEN <------+------+
-**                              |         |      |
-**                              V         |      |
-**               +---------> READER-------+      |
-**               |              |                |
-**               |              V                |
-**               |<-------WRITER_LOCKED------> ERROR
-**               |              |                ^  
-**               |              V                |
-**               |<------WRITER_CACHEMOD-------->|
-**               |              |                |
-**               |              V                |
-**               |<-------WRITER_DBMOD---------->|
-**               |              |                |
-**               |              V                |
-**               +<------WRITER_FINISHED-------->+
-**
-**
-** List of state transitions and the C [function] that performs each:
-** 
-**   OPEN              -> READER              [tdsqlite3PagerSharedLock]
-**   READER            -> OPEN                [pager_unlock]
-**
-**   READER            -> WRITER_LOCKED       [tdsqlite3PagerBegin]
-**   WRITER_LOCKED     -> WRITER_CACHEMOD     [pager_open_journal]
-**   WRITER_CACHEMOD   -> WRITER_DBMOD        [syncJournal]
-**   WRITER_DBMOD      -> WRITER_FINISHED     [tdsqlite3PagerCommitPhaseOne]
-**   WRITER_***        -> READER              [pager_end_transaction]
-**
-**   WRITER_***        -> ERROR               [pager_error]
-**   ERROR             -> OPEN                [pager_unlock]
-** 
-**
-**  OPEN:
-**
-**    The pager starts up in this state. Nothing is guaranteed in this
-**    state - the file may or may not be locked and the database size is
-**    unknown. The database may not be read or written.
-**
-**    * No read or write transaction is active.
-**    * Any lock, or no lock at all, may be held on the database file.
-**    * The dbSize, dbOrigSize and dbFileSize variables may not be trusted.
-**
-**  READER:
-**
-**    In this state all the requirements for reading the database in 
-**    rollback (non-WAL) mode are met. Unless the pager is (or recently
-**    was) in exclusive-locking mode, a user-level read transaction is 
-**    open. The database size is known in this state.
-**
-**    A connection running with locking_mode=normal enters this state when
-**    it opens a read-transaction on the database and returns to state
-**    OPEN after the read-transaction is completed. However a connection
-**    running in locking_mode=exclusive (including temp databases) remains in
-**    this state even after the read-transaction is closed. The only way
-**    a locking_mode=exclusive connection can transition from READER to OPEN
-**    is via the ERROR state (see below).
-** 
-**    * A read transaction may be active (but a write-transaction cannot).
-**    * A SHARED or greater lock is held on the database file.
-**    * The dbSize variable may be trusted (even if a user-level read 
-**      transaction is not active). The dbOrigSize and dbFileSize variables
-**      may not be trusted at this point.
-**    * If the database is a WAL database, then the WAL connection is open.
-**    * Even if a read-transaction is not open, it is guaranteed that 
-**      there is no hot-journal in the file-system.
-**
-**  WRITER_LOCKED:
-**
-**    The pager moves to this state from READER when a write-transaction
-**    is first opened on the database. In WRITER_LOCKED state, all locks 
-**    required to start a write-transaction are held, but no actual 
-**    modifications to the cache or database have taken place.
-**
-**    In rollback mode, a RESERVED or (if the transaction was opened with 
-**    BEGIN EXCLUSIVE) EXCLUSIVE lock is obtained on the database file when
-**    moving to this state, but the journal file is not written to or opened 
-**    to in this state. If the transaction is committed or rolled back while 
-**    in WRITER_LOCKED state, all that is required is to unlock the database 
-**    file.
-**
-**    IN WAL mode, WalBeginWriteTransaction() is called to lock the log file.
-**    If the connection is running with locking_mode=exclusive, an attempt
-**    is made to obtain an EXCLUSIVE lock on the database file.
-**
-**    * A write transaction is active.
-**    * If the connection is open in rollback-mode, a RESERVED or greater 
-**      lock is held on the database file.
-**    * If the connection is open in WAL-mode, a WAL write transaction
-**      is open (i.e. tdsqlite3WalBeginWriteTransaction() has been successfully
-**      called).
-**    * The dbSize, dbOrigSize and dbFileSize variables are all valid.
-**    * The contents of the pager cache have not been modified.
-**    * The journal file may or may not be open.
-**    * Nothing (not even the first header) has been written to the journal.
-**
-**  WRITER_CACHEMOD:
-**
-**    A pager moves from WRITER_LOCKED state to this state when a page is
-**    first modified by the upper layer. In rollback mode the journal file
-**    is opened (if it is not already open) and a header written to the
-**    start of it. The database file on disk has not been modified.
-**
-**    * A write transaction is active.
-**    * A RESERVED or greater lock is held on the database file.
-**    * The journal file is open and the first header has been written 
-**      to it, but the header has not been synced to disk.
-**    * The contents of the page cache have been modified.
-**
-**  WRITER_DBMOD:
-**
-**    The pager transitions from WRITER_CACHEMOD into WRITER_DBMOD state
-**    when it modifies the contents of the database file. WAL connections
-**    never enter this state (since they do not modify the database file,
-**    just the log file).
-**
-**    * A write transaction is active.
-**    * An EXCLUSIVE or greater lock is held on the database file.
-**    * The journal file is open and the first header has been written 
-**      and synced to disk.
-**    * The contents of the page cache have been modified (and possibly
-**      written to disk).
-**
-**  WRITER_FINISHED:
-**
-**    It is not possible for a WAL connection to enter this state.
-**
-**    A rollback-mode pager changes to WRITER_FINISHED state from WRITER_DBMOD
-**    state after the entire transaction has been successfully written into the
-**    database file. In this state the transaction may be committed simply
-**    by finalizing the journal file. Once in WRITER_FINISHED state, it is 
-**    not possible to modify the database further. At this point, the upper 
-**    layer must either commit or rollback the transaction.
-**
-**    * A write transaction is active.
-**    * An EXCLUSIVE or greater lock is held on the database file.
-**    * All writing and syncing of journal and database data has finished.
-**      If no error occurred, all that remains is to finalize the journal to
-**      commit the transaction. If an error did occur, the caller will need
-**      to rollback the transaction. 
-**
-**  ERROR:
-**
-**    The ERROR state is entered when an IO or disk-full error (including
-**    SQLITE_IOERR_NOMEM) occurs at a point in the code that makes it 
-**    difficult to be sure that the in-memory pager state (cache contents, 
-**    db size etc.) are consistent with the contents of the file-system.
-**
-**    Temporary pager files may enter the ERROR state, but in-memory pagers
-**    cannot.
-**
-**    For example, if an IO error occurs while performing a rollback, 
-**    the contents of the page-cache may be left in an inconsistent state.
-**    At this point it would be dangerous to change back to READER state
-**    (as usually happens after a rollback). Any subsequent readers might
-**    report database corruption (due to the inconsistent cache), and if
-**    they upgrade to writers, they may inadvertently corrupt the database
-**    file. To avoid this hazard, the pager switches into the ERROR state
-**    instead of READER following such an error.
-**
-**    Once it has entered the ERROR state, any attempt to use the pager
-**    to read or write data returns an error. Eventually, once all 
-**    outstanding transactions have been abandoned, the pager is able to
-**    transition back to OPEN state, discarding the contents of the 
-**    page-cache and any other in-memory state at the same time. Everything
-**    is reloaded from disk (and, if necessary, hot-journal rollback peformed)
-**    when a read-transaction is next opened on the pager (transitioning
-**    the pager into READER state). At that point the system has recovered 
-**    from the error.
-**
-**    Specifically, the pager jumps into the ERROR state if:
-**
-**      1. An error occurs while attempting a rollback. This happens in
-**         function tdsqlite3PagerRollback().
-**
-**      2. An error occurs while attempting to finalize a journal file
-**         following a commit in function tdsqlite3PagerCommitPhaseTwo().
-**
-**      3. An error occurs while attempting to write to the journal or
-**         database file in function pagerStress() in order to free up
-**         memory.
-**
-**    In other cases, the error is returned to the b-tree layer. The b-tree
-**    layer then attempts a rollback operation. If the error condition 
-**    persists, the pager enters the ERROR state via condition (1) above.
-**
-**    Condition (3) is necessary because it can be triggered by a read-only
-**    statement executed within a transaction. In this case, if the error
-**    code were simply returned to the user, the b-tree layer would not
-**    automatically attempt a rollback, as it assumes that an error in a
-**    read-only statement cannot leave the pager in an internally inconsistent 
-**    state.
-**
-**    * The Pager.errCode variable is set to something other than SQLITE_OK.
-**    * There are one or more outstanding references to pages (after the
-**      last reference is dropped the pager should move back to OPEN state).
-**    * The pager is not an in-memory pager.
-**    
-**
-** Notes:
-**
-**   * A pager is never in WRITER_DBMOD or WRITER_FINISHED state if the
-**     connection is open in WAL mode. A WAL connection is always in one
-**     of the first four states.
-**
-**   * Normally, a connection open in exclusive mode is never in PAGER_OPEN
-**     state. There are two exceptions: immediately after exclusive-mode has
-**     been turned on (and before any read or write transactions are 
-**     executed), and when the pager is leaving the "error state".
-**
-**   * See also: assert_pager_state().
-*/
-#define PAGER_OPEN                  0
-#define PAGER_READER                1
-#define PAGER_WRITER_LOCKED         2
-#define PAGER_WRITER_CACHEMOD       3
-#define PAGER_WRITER_DBMOD          4
-#define PAGER_WRITER_FINISHED       5
-#define PAGER_ERROR                 6
-
-/*
-** The Pager.eLock variable is almost always set to one of the 
-** following locking-states, according to the lock currently held on
-** the database file: NO_LOCK, SHARED_LOCK, RESERVED_LOCK or EXCLUSIVE_LOCK.
-** This variable is kept up to date as locks are taken and released by
-** the pagerLockDb() and pagerUnlockDb() wrappers.
-**
-** If the VFS xLock() or xUnlock() returns an error other than SQLITE_BUSY
-** (i.e. one of the SQLITE_IOERR subtypes), it is not clear whether or not
-** the operation was successful. In these circumstances pagerLockDb() and
-** pagerUnlockDb() take a conservative approach - eLock is always updated
-** when unlocking the file, and only updated when locking the file if the
-** VFS call is successful. This way, the Pager.eLock variable may be set
-** to a less exclusive (lower) value than the lock that is actually held
-** at the system level, but it is never set to a more exclusive value.
-**
-** This is usually safe. If an xUnlock fails or appears to fail, there may 
-** be a few redundant xLock() calls or a lock may be held for longer than
-** required, but nothing really goes wrong.
-**
-** The exception is when the database file is unlocked as the pager moves
-** from ERROR to OPEN state. At this point there may be a hot-journal file 
-** in the file-system that needs to be rolled back (as part of an OPEN->SHARED
-** transition, by the same pager or any other). If the call to xUnlock()
-** fails at this point and the pager is left holding an EXCLUSIVE lock, this
-** can confuse the call to xCheckReservedLock() call made later as part
-** of hot-journal detection.
-**
-** xCheckReservedLock() is defined as returning true "if there is a RESERVED 
-** lock held by this process or any others". So xCheckReservedLock may 
-** return true because the caller itself is holding an EXCLUSIVE lock (but
-** doesn't know it because of a previous error in xUnlock). If this happens
-** a hot-journal may be mistaken for a journal being created by an active
-** transaction in another process, causing SQLite to read from the database
-** without rolling it back.
-**
-** To work around this, if a call to xUnlock() fails when unlocking the
-** database in the ERROR state, Pager.eLock is set to UNKNOWN_LOCK. It
-** is only changed back to a real locking state after a successful call
-** to xLock(EXCLUSIVE). Also, the code to do the OPEN->SHARED state transition
-** omits the check for a hot-journal if Pager.eLock is set to UNKNOWN_LOCK 
-** lock. Instead, it assumes a hot-journal exists and obtains an EXCLUSIVE
-** lock on the database file before attempting to roll it back. See function
-** PagerSharedLock() for more detail.
-**
-** Pager.eLock may only be set to UNKNOWN_LOCK when the pager is in 
-** PAGER_OPEN state.
-*/
-#define UNKNOWN_LOCK                (EXCLUSIVE_LOCK+1)
-
-/*
-** A macro used for invoking the codec if there is one
-*/
-#ifdef SQLITE_HAS_CODEC
-# define CODEC1(P,D,N,X,E) \
-    if( P->xCodec && P->xCodec(P->pCodec,D,N,X)==0 ){ E; }
-# define CODEC2(P,D,N,X,E,O) \
-    if( P->xCodec==0 ){ O=(char*)D; }else \
-    if( (O=(char*)(P->xCodec(P->pCodec,D,N,X)))==0 ){ E; }
-#else
-# define CODEC1(P,D,N,X,E)   /* NO-OP */
-# define CODEC2(P,D,N,X,E,O) O=(char*)D
-#endif
-
-/*
-** The maximum allowed sector size. 64KiB. If the xSectorsize() method 
-** returns a value larger than this, then MAX_SECTOR_SIZE is used instead.
-** This could conceivably cause corruption following a power failure on
-** such a system. This is currently an undocumented limit.
-*/
-#define MAX_SECTOR_SIZE 0x10000
-
-
-/*
-** An instance of the following structure is allocated for each active
-** savepoint and statement transaction in the system. All such structures
-** are stored in the Pager.aSavepoint[] array, which is allocated and
-** resized using tdsqlite3Realloc().
-**
-** When a savepoint is created, the PagerSavepoint.iHdrOffset field is
-** set to 0. If a journal-header is written into the main journal while
-** the savepoint is active, then iHdrOffset is set to the byte offset 
-** immediately following the last journal record written into the main
-** journal before the journal-header. This is required during savepoint
-** rollback (see pagerPlaybackSavepoint()).
-*/
-typedef struct PagerSavepoint PagerSavepoint;
-struct PagerSavepoint {
-  i64 iOffset;                 /* Starting offset in main journal */
-  i64 iHdrOffset;              /* See above */
-  Bitvec *pInSavepoint;        /* Set of pages in this savepoint */
-  Pgno nOrig;                  /* Original number of pages in file */
-  Pgno iSubRec;                /* Index of first record in sub-journal */
-#ifndef SQLITE_OMIT_WAL
-  u32 aWalData[WAL_SAVEPOINT_NDATA];        /* WAL savepoint context */
-#endif
-};
-
-/*
-** Bits of the Pager.doNotSpill flag.  See further description below.
-*/
-#define SPILLFLAG_OFF         0x01 /* Never spill cache.  Set via pragma */
-#define SPILLFLAG_ROLLBACK    0x02 /* Current rolling back, so do not spill */
-#define SPILLFLAG_NOSYNC      0x04 /* Spill is ok, but do not sync */
-
-/*
-** An open page cache is an instance of struct Pager. A description of
-** some of the more important member variables follows:
-**
-** eState
-**
-**   The current 'state' of the pager object. See the comment and state
-**   diagram above for a description of the pager state.
-**
-** eLock
-**
-**   For a real on-disk database, the current lock held on the database file -
-**   NO_LOCK, SHARED_LOCK, RESERVED_LOCK or EXCLUSIVE_LOCK.
-**
-**   For a temporary or in-memory database (neither of which require any
-**   locks), this variable is always set to EXCLUSIVE_LOCK. Since such
-**   databases always have Pager.exclusiveMode==1, this tricks the pager
-**   logic into thinking that it already has all the locks it will ever
-**   need (and no reason to release them).
-**
-**   In some (obscure) circumstances, this variable may also be set to
-**   UNKNOWN_LOCK. See the comment above the #define of UNKNOWN_LOCK for
-**   details.
-**
-** changeCountDone
-**
-**   This boolean variable is used to make sure that the change-counter 
-**   (the 4-byte header field at byte offset 24 of the database file) is 
-**   not updated more often than necessary. 
-**
-**   It is set to true when the change-counter field is updated, which 
-**   can only happen if an exclusive lock is held on the database file.
-**   It is cleared (set to false) whenever an exclusive lock is 
-**   relinquished on the database file. Each time a transaction is committed,
-**   The changeCountDone flag is inspected. If it is true, the work of
-**   updating the change-counter is omitted for the current transaction.
-**
-**   This mechanism means that when running in exclusive mode, a connection 
-**   need only update the change-counter once, for the first transaction
-**   committed.
-**
-** setMaster
-**
-**   When PagerCommitPhaseOne() is called to commit a transaction, it may
-**   (or may not) specify a master-journal name to be written into the 
-**   journal file before it is synced to disk.
-**
-**   Whether or not a journal file contains a master-journal pointer affects 
-**   the way in which the journal file is finalized after the transaction is 
-**   committed or rolled back when running in "journal_mode=PERSIST" mode.
-**   If a journal file does not contain a master-journal pointer, it is
-**   finalized by overwriting the first journal header with zeroes. If
-**   it does contain a master-journal pointer the journal file is finalized 
-**   by truncating it to zero bytes, just as if the connection were 
-**   running in "journal_mode=truncate" mode.
-**
-**   Journal files that contain master journal pointers cannot be finalized
-**   simply by overwriting the first journal-header with zeroes, as the
-**   master journal pointer could interfere with hot-journal rollback of any
-**   subsequently interrupted transaction that reuses the journal file.
-**
-**   The flag is cleared as soon as the journal file is finalized (either
-**   by PagerCommitPhaseTwo or PagerRollback). If an IO error prevents the
-**   journal file from being successfully finalized, the setMaster flag
-**   is cleared anyway (and the pager will move to ERROR state).
-**
-** doNotSpill
-**
-**   This variables control the behavior of cache-spills  (calls made by
-**   the pcache module to the pagerStress() routine to write cached data
-**   to the file-system in order to free up memory).
-**
-**   When bits SPILLFLAG_OFF or SPILLFLAG_ROLLBACK of doNotSpill are set,
-**   writing to the database from pagerStress() is disabled altogether.
-**   The SPILLFLAG_ROLLBACK case is done in a very obscure case that
-**   comes up during savepoint rollback that requires the pcache module
-**   to allocate a new page to prevent the journal file from being written
-**   while it is being traversed by code in pager_playback().  The SPILLFLAG_OFF
-**   case is a user preference.
-** 
-**   If the SPILLFLAG_NOSYNC bit is set, writing to the database from
-**   pagerStress() is permitted, but syncing the journal file is not.
-**   This flag is set by tdsqlite3PagerWrite() when the file-system sector-size
-**   is larger than the database page-size in order to prevent a journal sync
-**   from happening in between the journalling of two pages on the same sector. 
-**
-** subjInMemory
-**
-**   This is a boolean variable. If true, then any required sub-journal
-**   is opened as an in-memory journal file. If false, then in-memory
-**   sub-journals are only used for in-memory pager files.
-**
-**   This variable is updated by the upper layer each time a new 
-**   write-transaction is opened.
-**
-** dbSize, dbOrigSize, dbFileSize
-**
-**   Variable dbSize is set to the number of pages in the database file.
-**   It is valid in PAGER_READER and higher states (all states except for
-**   OPEN and ERROR). 
-**
-**   dbSize is set based on the size of the database file, which may be 
-**   larger than the size of the database (the value stored at offset
-**   28 of the database header by the btree). If the size of the file
-**   is not an integer multiple of the page-size, the value stored in
-**   dbSize is rounded down (i.e. a 5KB file with 2K page-size has dbSize==2).
-**   Except, any file that is greater than 0 bytes in size is considered
-**   to have at least one page. (i.e. a 1KB file with 2K page-size leads
-**   to dbSize==1).
-**
-**   During a write-transaction, if pages with page-numbers greater than
-**   dbSize are modified in the cache, dbSize is updated accordingly.
-**   Similarly, if the database is truncated using PagerTruncateImage(), 
-**   dbSize is updated.
-**
-**   Variables dbOrigSize and dbFileSize are valid in states 
-**   PAGER_WRITER_LOCKED and higher. dbOrigSize is a copy of the dbSize
-**   variable at the start of the transaction. It is used during rollback,
-**   and to determine whether or not pages need to be journalled before
-**   being modified.
-**
-**   Throughout a write-transaction, dbFileSize contains the size of
-**   the file on disk in pages. It is set to a copy of dbSize when the
-**   write-transaction is first opened, and updated when VFS calls are made
-**   to write or truncate the database file on disk. 
-**
-**   The only reason the dbFileSize variable is required is to suppress 
-**   unnecessary calls to xTruncate() after committing a transaction. If, 
-**   when a transaction is committed, the dbFileSize variable indicates 
-**   that the database file is larger than the database image (Pager.dbSize), 
-**   pager_truncate() is called. The pager_truncate() call uses xFilesize()
-**   to measure the database file on disk, and then truncates it if required.
-**   dbFileSize is not used when rolling back a transaction. In this case
-**   pager_truncate() is called unconditionally (which means there may be
-**   a call to xFilesize() that is not strictly required). In either case,
-**   pager_truncate() may cause the file to become smaller or larger.
-**
-** dbHintSize
-**
-**   The dbHintSize variable is used to limit the number of calls made to
-**   the VFS xFileControl(FCNTL_SIZE_HINT) method. 
-**
-**   dbHintSize is set to a copy of the dbSize variable when a
-**   write-transaction is opened (at the same time as dbFileSize and
-**   dbOrigSize). If the xFileControl(FCNTL_SIZE_HINT) method is called,
-**   dbHintSize is increased to the number of pages that correspond to the
-**   size-hint passed to the method call. See pager_write_pagelist() for 
-**   details.
-**
-** errCode
-**
-**   The Pager.errCode variable is only ever used in PAGER_ERROR state. It
-**   is set to zero in all other states. In PAGER_ERROR state, Pager.errCode 
-**   is always set to SQLITE_FULL, SQLITE_IOERR or one of the SQLITE_IOERR_XXX 
-**   sub-codes.
-**
-** syncFlags, walSyncFlags
-**
-**   syncFlags is either SQLITE_SYNC_NORMAL (0x02) or SQLITE_SYNC_FULL (0x03).
-**   syncFlags is used for rollback mode.  walSyncFlags is used for WAL mode
-**   and contains the flags used to sync the checkpoint operations in the
-**   lower two bits, and sync flags used for transaction commits in the WAL
-**   file in bits 0x04 and 0x08.  In other words, to get the correct sync flags
-**   for checkpoint operations, use (walSyncFlags&0x03) and to get the correct
-**   sync flags for transaction commit, use ((walSyncFlags>>2)&0x03).  Note
-**   that with synchronous=NORMAL in WAL mode, transaction commit is not synced
-**   meaning that the 0x04 and 0x08 bits are both zero.
-*/
-struct Pager {
-  tdsqlite3_vfs *pVfs;          /* OS functions to use for IO */
-  u8 exclusiveMode;           /* Boolean. True if locking_mode==EXCLUSIVE */
-  u8 journalMode;             /* One of the PAGER_JOURNALMODE_* values */
-  u8 useJournal;              /* Use a rollback journal on this file */
-  u8 noSync;                  /* Do not sync the journal if true */
-  u8 fullSync;                /* Do extra syncs of the journal for robustness */
-  u8 extraSync;               /* sync directory after journal delete */
-  u8 syncFlags;               /* SYNC_NORMAL or SYNC_FULL otherwise */
-  u8 walSyncFlags;            /* See description above */
-  u8 tempFile;                /* zFilename is a temporary or immutable file */
-  u8 noLock;                  /* Do not lock (except in WAL mode) */
-  u8 readOnly;                /* True for a read-only database */
-  u8 memDb;                   /* True to inhibit all file I/O */
-
-  /**************************************************************************
-  ** The following block contains those class members that change during
-  ** routine operation.  Class members not in this block are either fixed
-  ** when the pager is first created or else only change when there is a
-  ** significant mode change (such as changing the page_size, locking_mode,
-  ** or the journal_mode).  From another view, these class members describe
-  ** the "state" of the pager, while other class members describe the
-  ** "configuration" of the pager.
-  */
-  u8 eState;                  /* Pager state (OPEN, READER, WRITER_LOCKED..) */
-  u8 eLock;                   /* Current lock held on database file */
-  u8 changeCountDone;         /* Set after incrementing the change-counter */
-  u8 setMaster;               /* True if a m-j name has been written to jrnl */
-  u8 doNotSpill;              /* Do not spill the cache when non-zero */
-  u8 subjInMemory;            /* True to use in-memory sub-journals */
-  u8 bUseFetch;               /* True to use xFetch() */
-  u8 hasHeldSharedLock;       /* True if a shared lock has ever been held */
-  Pgno dbSize;                /* Number of pages in the database */
-  Pgno dbOrigSize;            /* dbSize before the current transaction */
-  Pgno dbFileSize;            /* Number of pages in the database file */
-  Pgno dbHintSize;            /* Value passed to FCNTL_SIZE_HINT call */
-  int errCode;                /* One of several kinds of errors */
-  int nRec;                   /* Pages journalled since last j-header written */
-  u32 cksumInit;              /* Quasi-random value added to every checksum */
-  u32 nSubRec;                /* Number of records written to sub-journal */
-  Bitvec *pInJournal;         /* One bit for each page in the database file */
-  tdsqlite3_file *fd;           /* File descriptor for database */
-  tdsqlite3_file *jfd;          /* File descriptor for main journal */
-  tdsqlite3_file *sjfd;         /* File descriptor for sub-journal */
-  i64 journalOff;             /* Current write offset in the journal file */
-  i64 journalHdr;             /* Byte offset to previous journal header */
-  tdsqlite3_backup *pBackup;    /* Pointer to list of ongoing backup processes */
-  PagerSavepoint *aSavepoint; /* Array of active savepoints */
-  int nSavepoint;             /* Number of elements in aSavepoint[] */
-  u32 iDataVersion;           /* Changes whenever database content changes */
-  char dbFileVers[16];        /* Changes whenever database file changes */
-
-  int nMmapOut;               /* Number of mmap pages currently outstanding */
-  tdsqlite3_int64 szMmap;       /* Desired maximum mmap size */
-  PgHdr *pMmapFreelist;       /* List of free mmap page headers (pDirty) */
-  /*
-  ** End of the routinely-changing class members
-  ***************************************************************************/
-
-  u16 nExtra;                 /* Add this many bytes to each in-memory page */
-  i16 nReserve;               /* Number of unused bytes at end of each page */
-  u32 vfsFlags;               /* Flags for tdsqlite3_vfs.xOpen() */
-  u32 sectorSize;             /* Assumed sector size during rollback */
-  int pageSize;               /* Number of bytes in a page */
-  Pgno mxPgno;                /* Maximum allowed size of the database */
-  i64 journalSizeLimit;       /* Size limit for persistent journal files */
-  char *zFilename;            /* Name of the database file */
-  char *zJournal;             /* Name of the journal file */
-  int (*xBusyHandler)(void*); /* Function to call when busy */
-  void *pBusyHandlerArg;      /* Context argument for xBusyHandler */
-  int aStat[4];               /* Total cache hits, misses, writes, spills */
-#ifdef SQLITE_TEST
-  int nRead;                  /* Database pages read */
-#endif
-  void (*xReiniter)(DbPage*); /* Call this routine when reloading pages */
-  int (*xGet)(Pager*,Pgno,DbPage**,int); /* Routine to fetch a patch */
-#ifdef SQLITE_HAS_CODEC
-  void *(*xCodec)(void*,void*,Pgno,int); /* Routine for en/decoding data */
-  void (*xCodecSizeChng)(void*,int,int); /* Notify of page size changes */
-  void (*xCodecFree)(void*);             /* Destructor for the codec */
-  void *pCodec;               /* First argument to xCodec... methods */
-#endif
-  char *pTmpSpace;            /* Pager.pageSize bytes of space for tmp use */
-  PCache *pPCache;            /* Pointer to page cache object */
-#ifndef SQLITE_OMIT_WAL
-  Wal *pWal;                  /* Write-ahead log used by "journal_mode=wal" */
-  char *zWal;                 /* File name for write-ahead log */
-#endif
-};
-
-/*
-** Indexes for use with Pager.aStat[]. The Pager.aStat[] array contains
-** the values accessed by passing SQLITE_DBSTATUS_CACHE_HIT, CACHE_MISS 
-** or CACHE_WRITE to tdsqlite3_db_status().
-*/
-#define PAGER_STAT_HIT   0
-#define PAGER_STAT_MISS  1
-#define PAGER_STAT_WRITE 2
-#define PAGER_STAT_SPILL 3
-
-/*
-** The following global variables hold counters used for
-** testing purposes only.  These variables do not exist in
-** a non-testing build.  These variables are not thread-safe.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_pager_readdb_count = 0;    /* Number of full pages read from DB */
-SQLITE_API int tdsqlite3_pager_writedb_count = 0;   /* Number of full pages written to DB */
-SQLITE_API int tdsqlite3_pager_writej_count = 0;    /* Number of pages written to journal */
-# define PAGER_INCR(v)  v++
-#else
-# define PAGER_INCR(v)
-#endif
-
-
-
-/*
-** Journal files begin with the following magic string.  The data
-** was obtained from /dev/random.  It is used only as a sanity check.
-**
-** Since version 2.8.0, the journal format contains additional sanity
-** checking information.  If the power fails while the journal is being
-** written, semi-random garbage data might appear in the journal
-** file after power is restored.  If an attempt is then made
-** to roll the journal back, the database could be corrupted.  The additional
-** sanity checking data is an attempt to discover the garbage in the
-** journal and ignore it.
-**
-** The sanity checking information for the new journal format consists
-** of a 32-bit checksum on each page of data.  The checksum covers both
-** the page number and the pPager->pageSize bytes of data for the page.
-** This cksum is initialized to a 32-bit random value that appears in the
-** journal file right after the header.  The random initializer is important,
-** because garbage data that appears at the end of a journal is likely
-** data that was once in other files that have now been deleted.  If the
-** garbage data came from an obsolete journal file, the checksums might
-** be correct.  But by initializing the checksum to random value which
-** is different for every journal, we minimize that risk.
-*/
-static const unsigned char aJournalMagic[] = {
-  0xd9, 0xd5, 0x05, 0xf9, 0x20, 0xa1, 0x63, 0xd7,
-};
-
-/*
-** The size of the of each page record in the journal is given by
-** the following macro.
-*/
-#define JOURNAL_PG_SZ(pPager)  ((pPager->pageSize) + 8)
-
-/*
-** The journal header size for this pager. This is usually the same 
-** size as a single disk sector. See also setSectorSize().
-*/
-#define JOURNAL_HDR_SZ(pPager) (pPager->sectorSize)
-
-/*
-** The macro MEMDB is true if we are dealing with an in-memory database.
-** We do this as a macro so that if the SQLITE_OMIT_MEMORYDB macro is set,
-** the value of MEMDB will be a constant and the compiler will optimize
-** out code that would never execute.
-*/
-#ifdef SQLITE_OMIT_MEMORYDB
-# define MEMDB 0
-#else
-# define MEMDB pPager->memDb
-#endif
-
-/*
-** The macro USEFETCH is true if we are allowed to use the xFetch and xUnfetch
-** interfaces to access the database using memory-mapped I/O.
-*/
-#if SQLITE_MAX_MMAP_SIZE>0
-# define USEFETCH(x) ((x)->bUseFetch)
-#else
-# define USEFETCH(x) 0
-#endif
-
-/*
-** The maximum legal page number is (2^31 - 1).
-*/
-#define PAGER_MAX_PGNO 2147483647
-
-/*
-** The argument to this macro is a file descriptor (type tdsqlite3_file*).
-** Return 0 if it is not open, or non-zero (but not 1) if it is.
-**
-** This is so that expressions can be written as:
-**
-**   if( isOpen(pPager->jfd) ){ ...
-**
-** instead of
-**
-**   if( pPager->jfd->pMethods ){ ...
-*/
-#define isOpen(pFd) ((pFd)->pMethods!=0)
-
-#ifdef SQLITE_DIRECT_OVERFLOW_READ
-/*
-** Return true if page pgno can be read directly from the database file
-** by the b-tree layer. This is the case if:
-**
-**   * the database file is open,
-**   * there are no dirty pages in the cache, and
-**   * the desired page is not currently in the wal file.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerDirectReadOk(Pager *pPager, Pgno pgno){
-  if( pPager->fd->pMethods==0 ) return 0;
-  if( tdsqlite3PCacheIsDirty(pPager->pPCache) ) return 0;
-#ifdef SQLITE_HAS_CODEC
-  if( pPager->xCodec!=0 ) return 0;
-#endif
-#ifndef SQLITE_OMIT_WAL
-  if( pPager->pWal ){
-    u32 iRead = 0;
-    int rc;
-    rc = tdsqlite3WalFindFrame(pPager->pWal, pgno, &iRead);
-    return (rc==SQLITE_OK && iRead==0);
-  }
-#endif
-  return 1;
-}
-#endif
-
-#ifndef SQLITE_OMIT_WAL
-# define pagerUseWal(x) ((x)->pWal!=0)
-#else
-# define pagerUseWal(x) 0
-# define pagerRollbackWal(x) 0
-# define pagerWalFrames(v,w,x,y) 0
-# define pagerOpenWalIfPresent(z) SQLITE_OK
-# define pagerBeginReadTransaction(z) SQLITE_OK
-#endif
-
-#ifndef NDEBUG 
-/*
-** Usage:
-**
-**   assert( assert_pager_state(pPager) );
-**
-** This function runs many asserts to try to find inconsistencies in
-** the internal state of the Pager object.
-*/
-static int assert_pager_state(Pager *p){
-  Pager *pPager = p;
-
-  /* State must be valid. */
-  assert( p->eState==PAGER_OPEN
-       || p->eState==PAGER_READER
-       || p->eState==PAGER_WRITER_LOCKED
-       || p->eState==PAGER_WRITER_CACHEMOD
-       || p->eState==PAGER_WRITER_DBMOD
-       || p->eState==PAGER_WRITER_FINISHED
-       || p->eState==PAGER_ERROR
-  );
-
-  /* Regardless of the current state, a temp-file connection always behaves
-  ** as if it has an exclusive lock on the database file. It never updates
-  ** the change-counter field, so the changeCountDone flag is always set.
-  */
-  assert( p->tempFile==0 || p->eLock==EXCLUSIVE_LOCK );
-  assert( p->tempFile==0 || pPager->changeCountDone );
-
-  /* If the useJournal flag is clear, the journal-mode must be "OFF". 
-  ** And if the journal-mode is "OFF", the journal file must not be open.
-  */
-  assert( p->journalMode==PAGER_JOURNALMODE_OFF || p->useJournal );
-  assert( p->journalMode!=PAGER_JOURNALMODE_OFF || !isOpen(p->jfd) );
-
-  /* Check that MEMDB implies noSync. And an in-memory journal. Since 
-  ** this means an in-memory pager performs no IO at all, it cannot encounter 
-  ** either SQLITE_IOERR or SQLITE_FULL during rollback or while finalizing 
-  ** a journal file. (although the in-memory journal implementation may 
-  ** return SQLITE_IOERR_NOMEM while the journal file is being written). It 
-  ** is therefore not possible for an in-memory pager to enter the ERROR 
-  ** state.
-  */
-  if( MEMDB ){
-    assert( !isOpen(p->fd) );
-    assert( p->noSync );
-    assert( p->journalMode==PAGER_JOURNALMODE_OFF 
-         || p->journalMode==PAGER_JOURNALMODE_MEMORY 
-    );
-    assert( p->eState!=PAGER_ERROR && p->eState!=PAGER_OPEN );
-    assert( pagerUseWal(p)==0 );
-  }
-
-  /* If changeCountDone is set, a RESERVED lock or greater must be held
-  ** on the file.
-  */
-  assert( pPager->changeCountDone==0 || pPager->eLock>=RESERVED_LOCK );
-  assert( p->eLock!=PENDING_LOCK );
-
-  switch( p->eState ){
-    case PAGER_OPEN:
-      assert( !MEMDB );
-      assert( pPager->errCode==SQLITE_OK );
-      assert( tdsqlite3PcacheRefCount(pPager->pPCache)==0 || pPager->tempFile );
-      break;
-
-    case PAGER_READER:
-      assert( pPager->errCode==SQLITE_OK );
-      assert( p->eLock!=UNKNOWN_LOCK );
-      assert( p->eLock>=SHARED_LOCK );
-      break;
-
-    case PAGER_WRITER_LOCKED:
-      assert( p->eLock!=UNKNOWN_LOCK );
-      assert( pPager->errCode==SQLITE_OK );
-      if( !pagerUseWal(pPager) ){
-        assert( p->eLock>=RESERVED_LOCK );
-      }
-      assert( pPager->dbSize==pPager->dbOrigSize );
-      assert( pPager->dbOrigSize==pPager->dbFileSize );
-      assert( pPager->dbOrigSize==pPager->dbHintSize );
-      assert( pPager->setMaster==0 );
-      break;
-
-    case PAGER_WRITER_CACHEMOD:
-      assert( p->eLock!=UNKNOWN_LOCK );
-      assert( pPager->errCode==SQLITE_OK );
-      if( !pagerUseWal(pPager) ){
-        /* It is possible that if journal_mode=wal here that neither the
-        ** journal file nor the WAL file are open. This happens during
-        ** a rollback transaction that switches from journal_mode=off
-        ** to journal_mode=wal.
-        */
-        assert( p->eLock>=RESERVED_LOCK );
-        assert( isOpen(p->jfd) 
-             || p->journalMode==PAGER_JOURNALMODE_OFF 
-             || p->journalMode==PAGER_JOURNALMODE_WAL 
-        );
-      }
-      assert( pPager->dbOrigSize==pPager->dbFileSize );
-      assert( pPager->dbOrigSize==pPager->dbHintSize );
-      break;
-
-    case PAGER_WRITER_DBMOD:
-      assert( p->eLock==EXCLUSIVE_LOCK );
-      assert( pPager->errCode==SQLITE_OK );
-      assert( !pagerUseWal(pPager) );
-      assert( p->eLock>=EXCLUSIVE_LOCK );
-      assert( isOpen(p->jfd) 
-           || p->journalMode==PAGER_JOURNALMODE_OFF 
-           || p->journalMode==PAGER_JOURNALMODE_WAL 
-           || (tdsqlite3OsDeviceCharacteristics(p->fd)&SQLITE_IOCAP_BATCH_ATOMIC)
-      );
-      assert( pPager->dbOrigSize<=pPager->dbHintSize );
-      break;
-
-    case PAGER_WRITER_FINISHED:
-      assert( p->eLock==EXCLUSIVE_LOCK );
-      assert( pPager->errCode==SQLITE_OK );
-      assert( !pagerUseWal(pPager) );
-      assert( isOpen(p->jfd) 
-           || p->journalMode==PAGER_JOURNALMODE_OFF 
-           || p->journalMode==PAGER_JOURNALMODE_WAL 
-           || (tdsqlite3OsDeviceCharacteristics(p->fd)&SQLITE_IOCAP_BATCH_ATOMIC)
-      );
-      break;
-
-    case PAGER_ERROR:
-      /* There must be at least one outstanding reference to the pager if
-      ** in ERROR state. Otherwise the pager should have already dropped
-      ** back to OPEN state.
-      */
-      assert( pPager->errCode!=SQLITE_OK );
-      assert( tdsqlite3PcacheRefCount(pPager->pPCache)>0 || pPager->tempFile );
-      break;
-  }
-
-  return 1;
-}
-#endif /* ifndef NDEBUG */
-
-#ifdef SQLITE_DEBUG 
-/*
-** Return a pointer to a human readable string in a static buffer
-** containing the state of the Pager object passed as an argument. This
-** is intended to be used within debuggers. For example, as an alternative
-** to "print *pPager" in gdb:
-**
-** (gdb) printf "%s", print_pager_state(pPager)
-**
-** This routine has external linkage in order to suppress compiler warnings
-** about an unused function.  It is enclosed within SQLITE_DEBUG and so does
-** not appear in normal builds.
-*/
-char *print_pager_state(Pager *p){
-  static char zRet[1024];
-
-  tdsqlite3_snprintf(1024, zRet,
-      "Filename:      %s\n"
-      "State:         %s errCode=%d\n"
-      "Lock:          %s\n"
-      "Locking mode:  locking_mode=%s\n"
-      "Journal mode:  journal_mode=%s\n"
-      "Backing store: tempFile=%d memDb=%d useJournal=%d\n"
-      "Journal:       journalOff=%lld journalHdr=%lld\n"
-      "Size:          dbsize=%d dbOrigSize=%d dbFileSize=%d\n"
-      , p->zFilename
-      , p->eState==PAGER_OPEN            ? "OPEN" :
-        p->eState==PAGER_READER          ? "READER" :
-        p->eState==PAGER_WRITER_LOCKED   ? "WRITER_LOCKED" :
-        p->eState==PAGER_WRITER_CACHEMOD ? "WRITER_CACHEMOD" :
-        p->eState==PAGER_WRITER_DBMOD    ? "WRITER_DBMOD" :
-        p->eState==PAGER_WRITER_FINISHED ? "WRITER_FINISHED" :
-        p->eState==PAGER_ERROR           ? "ERROR" : "?error?"
-      , (int)p->errCode
-      , p->eLock==NO_LOCK         ? "NO_LOCK" :
-        p->eLock==RESERVED_LOCK   ? "RESERVED" :
-        p->eLock==EXCLUSIVE_LOCK  ? "EXCLUSIVE" :
-        p->eLock==SHARED_LOCK     ? "SHARED" :
-        p->eLock==UNKNOWN_LOCK    ? "UNKNOWN" : "?error?"
-      , p->exclusiveMode ? "exclusive" : "normal"
-      , p->journalMode==PAGER_JOURNALMODE_MEMORY   ? "memory" :
-        p->journalMode==PAGER_JOURNALMODE_OFF      ? "off" :
-        p->journalMode==PAGER_JOURNALMODE_DELETE   ? "delete" :
-        p->journalMode==PAGER_JOURNALMODE_PERSIST  ? "persist" :
-        p->journalMode==PAGER_JOURNALMODE_TRUNCATE ? "truncate" :
-        p->journalMode==PAGER_JOURNALMODE_WAL      ? "wal" : "?error?"
-      , (int)p->tempFile, (int)p->memDb, (int)p->useJournal
-      , p->journalOff, p->journalHdr
-      , (int)p->dbSize, (int)p->dbOrigSize, (int)p->dbFileSize
-  );
-
-  return zRet;
-}
-#endif
-
-/* Forward references to the various page getters */
-static int getPageNormal(Pager*,Pgno,DbPage**,int);
-static int getPageError(Pager*,Pgno,DbPage**,int);
-#if SQLITE_MAX_MMAP_SIZE>0
-static int getPageMMap(Pager*,Pgno,DbPage**,int);
-#endif
-
-/*
-** Set the Pager.xGet method for the appropriate routine used to fetch
-** content from the pager.
-*/
-static void setGetterMethod(Pager *pPager){
-  if( pPager->errCode ){
-    pPager->xGet = getPageError;
-#if SQLITE_MAX_MMAP_SIZE>0
-  }else if( USEFETCH(pPager)
-#ifdef SQLITE_HAS_CODEC
-   && pPager->xCodec==0
-#endif
-  ){
-    pPager->xGet = getPageMMap;
-#endif /* SQLITE_MAX_MMAP_SIZE>0 */
-  }else{
-    pPager->xGet = getPageNormal;
-  }
-}
-
-/*
-** Return true if it is necessary to write page *pPg into the sub-journal.
-** A page needs to be written into the sub-journal if there exists one
-** or more open savepoints for which:
-**
-**   * The page-number is less than or equal to PagerSavepoint.nOrig, and
-**   * The bit corresponding to the page-number is not set in
-**     PagerSavepoint.pInSavepoint.
-*/
-static int subjRequiresPage(PgHdr *pPg){
-  Pager *pPager = pPg->pPager;
-  PagerSavepoint *p;
-  Pgno pgno = pPg->pgno;
-  int i;
-  for(i=0; i<pPager->nSavepoint; i++){
-    p = &pPager->aSavepoint[i];
-    if( p->nOrig>=pgno && 0==tdsqlite3BitvecTestNotNull(p->pInSavepoint, pgno) ){
-      return 1;
-    }
-  }
-  return 0;
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Return true if the page is already in the journal file.
-*/
-static int pageInJournal(Pager *pPager, PgHdr *pPg){
-  return tdsqlite3BitvecTest(pPager->pInJournal, pPg->pgno);
-}
-#endif
-
-/*
-** Read a 32-bit integer from the given file descriptor.  Store the integer
-** that is read in *pRes.  Return SQLITE_OK if everything worked, or an
-** error code is something goes wrong.
-**
-** All values are stored on disk as big-endian.
-*/
-static int read32bits(tdsqlite3_file *fd, i64 offset, u32 *pRes){
-  unsigned char ac[4];
-  int rc = tdsqlite3OsRead(fd, ac, sizeof(ac), offset);
-  if( rc==SQLITE_OK ){
-    *pRes = tdsqlite3Get4byte(ac);
-  }
-  return rc;
-}
-
-/*
-** Write a 32-bit integer into a string buffer in big-endian byte order.
-*/
-#define put32bits(A,B)  tdsqlite3Put4byte((u8*)A,B)
-
-
-/*
-** Write a 32-bit integer into the given file descriptor.  Return SQLITE_OK
-** on success or an error code is something goes wrong.
-*/
-static int write32bits(tdsqlite3_file *fd, i64 offset, u32 val){
-  char ac[4];
-  put32bits(ac, val);
-  return tdsqlite3OsWrite(fd, ac, 4, offset);
-}
-
-/*
-** Unlock the database file to level eLock, which must be either NO_LOCK
-** or SHARED_LOCK. Regardless of whether or not the call to xUnlock()
-** succeeds, set the Pager.eLock variable to match the (attempted) new lock.
-**
-** Except, if Pager.eLock is set to UNKNOWN_LOCK when this function is
-** called, do not modify it. See the comment above the #define of 
-** UNKNOWN_LOCK for an explanation of this.
-*/
-static int pagerUnlockDb(Pager *pPager, int eLock){
-  int rc = SQLITE_OK;
-
-  assert( !pPager->exclusiveMode || pPager->eLock==eLock );
-  assert( eLock==NO_LOCK || eLock==SHARED_LOCK );
-  assert( eLock!=NO_LOCK || pagerUseWal(pPager)==0 );
-  if( isOpen(pPager->fd) ){
-    assert( pPager->eLock>=eLock );
-    rc = pPager->noLock ? SQLITE_OK : tdsqlite3OsUnlock(pPager->fd, eLock);
-    if( pPager->eLock!=UNKNOWN_LOCK ){
-      pPager->eLock = (u8)eLock;
-    }
-    IOTRACE(("UNLOCK %p %d\n", pPager, eLock))
-  }
-  pPager->changeCountDone = pPager->tempFile; /* ticket fb3b3024ea238d5c */
-  return rc;
-}
-
-/*
-** Lock the database file to level eLock, which must be either SHARED_LOCK,
-** RESERVED_LOCK or EXCLUSIVE_LOCK. If the caller is successful, set the
-** Pager.eLock variable to the new locking state. 
-**
-** Except, if Pager.eLock is set to UNKNOWN_LOCK when this function is 
-** called, do not modify it unless the new locking state is EXCLUSIVE_LOCK. 
-** See the comment above the #define of UNKNOWN_LOCK for an explanation 
-** of this.
-*/
-static int pagerLockDb(Pager *pPager, int eLock){
-  int rc = SQLITE_OK;
-
-  assert( eLock==SHARED_LOCK || eLock==RESERVED_LOCK || eLock==EXCLUSIVE_LOCK );
-  if( pPager->eLock<eLock || pPager->eLock==UNKNOWN_LOCK ){
-    rc = pPager->noLock ? SQLITE_OK : tdsqlite3OsLock(pPager->fd, eLock);
-    if( rc==SQLITE_OK && (pPager->eLock!=UNKNOWN_LOCK||eLock==EXCLUSIVE_LOCK) ){
-      pPager->eLock = (u8)eLock;
-      IOTRACE(("LOCK %p %d\n", pPager, eLock))
-    }
-  }
-  return rc;
-}
-
-/*
-** This function determines whether or not the atomic-write or
-** atomic-batch-write optimizations can be used with this pager. The
-** atomic-write optimization can be used if:
-**
-**  (a) the value returned by OsDeviceCharacteristics() indicates that
-**      a database page may be written atomically, and
-**  (b) the value returned by OsSectorSize() is less than or equal
-**      to the page size.
-**
-** If it can be used, then the value returned is the size of the journal 
-** file when it contains rollback data for exactly one page.
-**
-** The atomic-batch-write optimization can be used if OsDeviceCharacteristics()
-** returns a value with the SQLITE_IOCAP_BATCH_ATOMIC bit set. -1 is
-** returned in this case.
-**
-** If neither optimization can be used, 0 is returned.
-*/
-static int jrnlBufferSize(Pager *pPager){
-  assert( !MEMDB );
-
-#if defined(SQLITE_ENABLE_ATOMIC_WRITE) \
- || defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
-  int dc;                           /* Device characteristics */
-
-  assert( isOpen(pPager->fd) );
-  dc = tdsqlite3OsDeviceCharacteristics(pPager->fd);
-#else
-  UNUSED_PARAMETER(pPager);
-#endif
-
-#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-  if( pPager->dbSize>0 && (dc&SQLITE_IOCAP_BATCH_ATOMIC) ){
-    return -1;
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_ATOMIC_WRITE
-  {
-    int nSector = pPager->sectorSize;
-    int szPage = pPager->pageSize;
-
-    assert(SQLITE_IOCAP_ATOMIC512==(512>>8));
-    assert(SQLITE_IOCAP_ATOMIC64K==(65536>>8));
-    if( 0==(dc&(SQLITE_IOCAP_ATOMIC|(szPage>>8)) || nSector>szPage) ){
-      return 0;
-    }
-  }
-
-  return JOURNAL_HDR_SZ(pPager) + JOURNAL_PG_SZ(pPager);
-#endif
-
-  return 0;
-}
-
-/*
-** If SQLITE_CHECK_PAGES is defined then we do some sanity checking
-** on the cache using a hash function.  This is used for testing
-** and debugging only.
-*/
-#ifdef SQLITE_CHECK_PAGES
-/*
-** Return a 32-bit hash of the page data for pPage.
-*/
-static u32 pager_datahash(int nByte, unsigned char *pData){
-  u32 hash = 0;
-  int i;
-  for(i=0; i<nByte; i++){
-    hash = (hash*1039) + pData[i];
-  }
-  return hash;
-}
-static u32 pager_pagehash(PgHdr *pPage){
-  return pager_datahash(pPage->pPager->pageSize, (unsigned char *)pPage->pData);
-}
-static void pager_set_pagehash(PgHdr *pPage){
-  pPage->pageHash = pager_pagehash(pPage);
-}
-
-/*
-** The CHECK_PAGE macro takes a PgHdr* as an argument. If SQLITE_CHECK_PAGES
-** is defined, and NDEBUG is not defined, an assert() statement checks
-** that the page is either dirty or still matches the calculated page-hash.
-*/
-#define CHECK_PAGE(x) checkPage(x)
-static void checkPage(PgHdr *pPg){
-  Pager *pPager = pPg->pPager;
-  assert( pPager->eState!=PAGER_ERROR );
-  assert( (pPg->flags&PGHDR_DIRTY) || pPg->pageHash==pager_pagehash(pPg) );
-}
-
-#else
-#define pager_datahash(X,Y)  0
-#define pager_pagehash(X)  0
-#define pager_set_pagehash(X)
-#define CHECK_PAGE(x)
-#endif  /* SQLITE_CHECK_PAGES */
-
-/*
-** When this is called the journal file for pager pPager must be open.
-** This function attempts to read a master journal file name from the 
-** end of the file and, if successful, copies it into memory supplied 
-** by the caller. See comments above writeMasterJournal() for the format
-** used to store a master journal file name at the end of a journal file.
-**
-** zMaster must point to a buffer of at least nMaster bytes allocated by
-** the caller. This should be tdsqlite3_vfs.mxPathname+1 (to ensure there is
-** enough space to write the master journal name). If the master journal
-** name in the journal is longer than nMaster bytes (including a
-** nul-terminator), then this is handled as if no master journal name
-** were present in the journal.
-**
-** If a master journal file name is present at the end of the journal
-** file, then it is copied into the buffer pointed to by zMaster. A
-** nul-terminator byte is appended to the buffer following the master
-** journal file name.
-**
-** If it is determined that no master journal file name is present 
-** zMaster[0] is set to 0 and SQLITE_OK returned.
-**
-** If an error occurs while reading from the journal file, an SQLite
-** error code is returned.
-*/
-static int readMasterJournal(tdsqlite3_file *pJrnl, char *zMaster, u32 nMaster){
-  int rc;                    /* Return code */
-  u32 len;                   /* Length in bytes of master journal name */
-  i64 szJ;                   /* Total size in bytes of journal file pJrnl */
-  u32 cksum;                 /* MJ checksum value read from journal */
-  u32 u;                     /* Unsigned loop counter */
-  unsigned char aMagic[8];   /* A buffer to hold the magic header */
-  zMaster[0] = '\0';
-
-  if( SQLITE_OK!=(rc = tdsqlite3OsFileSize(pJrnl, &szJ))
-   || szJ<16
-   || SQLITE_OK!=(rc = read32bits(pJrnl, szJ-16, &len))
-   || len>=nMaster 
-   || len>szJ-16
-   || len==0 
-   || SQLITE_OK!=(rc = read32bits(pJrnl, szJ-12, &cksum))
-   || SQLITE_OK!=(rc = tdsqlite3OsRead(pJrnl, aMagic, 8, szJ-8))
-   || memcmp(aMagic, aJournalMagic, 8)
-   || SQLITE_OK!=(rc = tdsqlite3OsRead(pJrnl, zMaster, len, szJ-16-len))
-  ){
-    return rc;
-  }
-
-  /* See if the checksum matches the master journal name */
-  for(u=0; u<len; u++){
-    cksum -= zMaster[u];
-  }
-  if( cksum ){
-    /* If the checksum doesn't add up, then one or more of the disk sectors
-    ** containing the master journal filename is corrupted. This means
-    ** definitely roll back, so just return SQLITE_OK and report a (nul)
-    ** master-journal filename.
-    */
-    len = 0;
-  }
-  zMaster[len] = '\0';
-  zMaster[len+1] = '\0';
-   
-  return SQLITE_OK;
-}
-
-/*
-** Return the offset of the sector boundary at or immediately 
-** following the value in pPager->journalOff, assuming a sector 
-** size of pPager->sectorSize bytes.
-**
-** i.e for a sector size of 512:
-**
-**   Pager.journalOff          Return value
-**   ---------------------------------------
-**   0                         0
-**   512                       512
-**   100                       512
-**   2000                      2048
-** 
-*/
-static i64 journalHdrOffset(Pager *pPager){
-  i64 offset = 0;
-  i64 c = pPager->journalOff;
-  if( c ){
-    offset = ((c-1)/JOURNAL_HDR_SZ(pPager) + 1) * JOURNAL_HDR_SZ(pPager);
-  }
-  assert( offset%JOURNAL_HDR_SZ(pPager)==0 );
-  assert( offset>=c );
-  assert( (offset-c)<JOURNAL_HDR_SZ(pPager) );
-  return offset;
-}
-
-/*
-** The journal file must be open when this function is called.
-**
-** This function is a no-op if the journal file has not been written to
-** within the current transaction (i.e. if Pager.journalOff==0).
-**
-** If doTruncate is non-zero or the Pager.journalSizeLimit variable is
-** set to 0, then truncate the journal file to zero bytes in size. Otherwise,
-** zero the 28-byte header at the start of the journal file. In either case, 
-** if the pager is not in no-sync mode, sync the journal file immediately 
-** after writing or truncating it.
-**
-** If Pager.journalSizeLimit is set to a positive, non-zero value, and
-** following the truncation or zeroing described above the size of the 
-** journal file in bytes is larger than this value, then truncate the
-** journal file to Pager.journalSizeLimit bytes. The journal file does
-** not need to be synced following this operation.
-**
-** If an IO error occurs, abandon processing and return the IO error code.
-** Otherwise, return SQLITE_OK.
-*/
-static int zeroJournalHdr(Pager *pPager, int doTruncate){
-  int rc = SQLITE_OK;                               /* Return code */
-  assert( isOpen(pPager->jfd) );
-  assert( !tdsqlite3JournalIsInMemory(pPager->jfd) );
-  if( pPager->journalOff ){
-    const i64 iLimit = pPager->journalSizeLimit;    /* Local cache of jsl */
-
-    IOTRACE(("JZEROHDR %p\n", pPager))
-    if( doTruncate || iLimit==0 ){
-      rc = tdsqlite3OsTruncate(pPager->jfd, 0);
-    }else{
-      static const char zeroHdr[28] = {0};
-      rc = tdsqlite3OsWrite(pPager->jfd, zeroHdr, sizeof(zeroHdr), 0);
-    }
-    if( rc==SQLITE_OK && !pPager->noSync ){
-      rc = tdsqlite3OsSync(pPager->jfd, SQLITE_SYNC_DATAONLY|pPager->syncFlags);
-    }
-
-    /* At this point the transaction is committed but the write lock 
-    ** is still held on the file. If there is a size limit configured for 
-    ** the persistent journal and the journal file currently consumes more
-    ** space than that limit allows for, truncate it now. There is no need
-    ** to sync the file following this operation.
-    */
-    if( rc==SQLITE_OK && iLimit>0 ){
-      i64 sz;
-      rc = tdsqlite3OsFileSize(pPager->jfd, &sz);
-      if( rc==SQLITE_OK && sz>iLimit ){
-        rc = tdsqlite3OsTruncate(pPager->jfd, iLimit);
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** The journal file must be open when this routine is called. A journal
-** header (JOURNAL_HDR_SZ bytes) is written into the journal file at the
-** current location.
-**
-** The format for the journal header is as follows:
-** - 8 bytes: Magic identifying journal format.
-** - 4 bytes: Number of records in journal, or -1 no-sync mode is on.
-** - 4 bytes: Random number used for page hash.
-** - 4 bytes: Initial database page count.
-** - 4 bytes: Sector size used by the process that wrote this journal.
-** - 4 bytes: Database page size.
-** 
-** Followed by (JOURNAL_HDR_SZ - 28) bytes of unused space.
-*/
-static int writeJournalHdr(Pager *pPager){
-  int rc = SQLITE_OK;                 /* Return code */
-  char *zHeader = pPager->pTmpSpace;  /* Temporary space used to build header */
-  u32 nHeader = (u32)pPager->pageSize;/* Size of buffer pointed to by zHeader */
-  u32 nWrite;                         /* Bytes of header sector written */
-  int ii;                             /* Loop counter */
-
-  assert( isOpen(pPager->jfd) );      /* Journal file must be open. */
-
-  if( nHeader>JOURNAL_HDR_SZ(pPager) ){
-    nHeader = JOURNAL_HDR_SZ(pPager);
-  }
-
-  /* If there are active savepoints and any of them were created 
-  ** since the most recent journal header was written, update the 
-  ** PagerSavepoint.iHdrOffset fields now.
-  */
-  for(ii=0; ii<pPager->nSavepoint; ii++){
-    if( pPager->aSavepoint[ii].iHdrOffset==0 ){
-      pPager->aSavepoint[ii].iHdrOffset = pPager->journalOff;
-    }
-  }
-
-  pPager->journalHdr = pPager->journalOff = journalHdrOffset(pPager);
-
-  /* 
-  ** Write the nRec Field - the number of page records that follow this
-  ** journal header. Normally, zero is written to this value at this time.
-  ** After the records are added to the journal (and the journal synced, 
-  ** if in full-sync mode), the zero is overwritten with the true number
-  ** of records (see syncJournal()).
-  **
-  ** A faster alternative is to write 0xFFFFFFFF to the nRec field. When
-  ** reading the journal this value tells SQLite to assume that the
-  ** rest of the journal file contains valid page records. This assumption
-  ** is dangerous, as if a failure occurred whilst writing to the journal
-  ** file it may contain some garbage data. There are two scenarios
-  ** where this risk can be ignored:
-  **
-  **   * When the pager is in no-sync mode. Corruption can follow a
-  **     power failure in this case anyway.
-  **
-  **   * When the SQLITE_IOCAP_SAFE_APPEND flag is set. This guarantees
-  **     that garbage data is never appended to the journal file.
-  */
-  assert( isOpen(pPager->fd) || pPager->noSync );
-  if( pPager->noSync || (pPager->journalMode==PAGER_JOURNALMODE_MEMORY)
-   || (tdsqlite3OsDeviceCharacteristics(pPager->fd)&SQLITE_IOCAP_SAFE_APPEND) 
-  ){
-    memcpy(zHeader, aJournalMagic, sizeof(aJournalMagic));
-    put32bits(&zHeader[sizeof(aJournalMagic)], 0xffffffff);
-  }else{
-    memset(zHeader, 0, sizeof(aJournalMagic)+4);
-  }
-
-  /* The random check-hash initializer */ 
-  tdsqlite3_randomness(sizeof(pPager->cksumInit), &pPager->cksumInit);
-  put32bits(&zHeader[sizeof(aJournalMagic)+4], pPager->cksumInit);
-  /* The initial database size */
-  put32bits(&zHeader[sizeof(aJournalMagic)+8], pPager->dbOrigSize);
-  /* The assumed sector size for this process */
-  put32bits(&zHeader[sizeof(aJournalMagic)+12], pPager->sectorSize);
-
-  /* The page size */
-  put32bits(&zHeader[sizeof(aJournalMagic)+16], pPager->pageSize);
-
-  /* Initializing the tail of the buffer is not necessary.  Everything
-  ** works find if the following memset() is omitted.  But initializing
-  ** the memory prevents valgrind from complaining, so we are willing to
-  ** take the performance hit.
-  */
-  memset(&zHeader[sizeof(aJournalMagic)+20], 0,
-         nHeader-(sizeof(aJournalMagic)+20));
-
-  /* In theory, it is only necessary to write the 28 bytes that the 
-  ** journal header consumes to the journal file here. Then increment the 
-  ** Pager.journalOff variable by JOURNAL_HDR_SZ so that the next 
-  ** record is written to the following sector (leaving a gap in the file
-  ** that will be implicitly filled in by the OS).
-  **
-  ** However it has been discovered that on some systems this pattern can 
-  ** be significantly slower than contiguously writing data to the file,
-  ** even if that means explicitly writing data to the block of 
-  ** (JOURNAL_HDR_SZ - 28) bytes that will not be used. So that is what
-  ** is done. 
-  **
-  ** The loop is required here in case the sector-size is larger than the 
-  ** database page size. Since the zHeader buffer is only Pager.pageSize
-  ** bytes in size, more than one call to tdsqlite3OsWrite() may be required
-  ** to populate the entire journal header sector.
-  */ 
-  for(nWrite=0; rc==SQLITE_OK&&nWrite<JOURNAL_HDR_SZ(pPager); nWrite+=nHeader){
-    IOTRACE(("JHDR %p %lld %d\n", pPager, pPager->journalHdr, nHeader))
-    rc = tdsqlite3OsWrite(pPager->jfd, zHeader, nHeader, pPager->journalOff);
-    assert( pPager->journalHdr <= pPager->journalOff );
-    pPager->journalOff += nHeader;
-  }
-
-  return rc;
-}
-
-/*
-** The journal file must be open when this is called. A journal header file
-** (JOURNAL_HDR_SZ bytes) is read from the current location in the journal
-** file. The current location in the journal file is given by
-** pPager->journalOff. See comments above function writeJournalHdr() for
-** a description of the journal header format.
-**
-** If the header is read successfully, *pNRec is set to the number of
-** page records following this header and *pDbSize is set to the size of the
-** database before the transaction began, in pages. Also, pPager->cksumInit
-** is set to the value read from the journal header. SQLITE_OK is returned
-** in this case.
-**
-** If the journal header file appears to be corrupted, SQLITE_DONE is
-** returned and *pNRec and *PDbSize are undefined.  If JOURNAL_HDR_SZ bytes
-** cannot be read from the journal file an error code is returned.
-*/
-static int readJournalHdr(
-  Pager *pPager,               /* Pager object */
-  int isHot,
-  i64 journalSize,             /* Size of the open journal file in bytes */
-  u32 *pNRec,                  /* OUT: Value read from the nRec field */
-  u32 *pDbSize                 /* OUT: Value of original database size field */
-){
-  int rc;                      /* Return code */
-  unsigned char aMagic[8];     /* A buffer to hold the magic header */
-  i64 iHdrOff;                 /* Offset of journal header being read */
-
-  assert( isOpen(pPager->jfd) );      /* Journal file must be open. */
-
-  /* Advance Pager.journalOff to the start of the next sector. If the
-  ** journal file is too small for there to be a header stored at this
-  ** point, return SQLITE_DONE.
-  */
-  pPager->journalOff = journalHdrOffset(pPager);
-  if( pPager->journalOff+JOURNAL_HDR_SZ(pPager) > journalSize ){
-    return SQLITE_DONE;
-  }
-  iHdrOff = pPager->journalOff;
-
-  /* Read in the first 8 bytes of the journal header. If they do not match
-  ** the  magic string found at the start of each journal header, return
-  ** SQLITE_DONE. If an IO error occurs, return an error code. Otherwise,
-  ** proceed.
-  */
-  if( isHot || iHdrOff!=pPager->journalHdr ){
-    rc = tdsqlite3OsRead(pPager->jfd, aMagic, sizeof(aMagic), iHdrOff);
-    if( rc ){
-      return rc;
-    }
-    if( memcmp(aMagic, aJournalMagic, sizeof(aMagic))!=0 ){
-      return SQLITE_DONE;
-    }
-  }
-
-  /* Read the first three 32-bit fields of the journal header: The nRec
-  ** field, the checksum-initializer and the database size at the start
-  ** of the transaction. Return an error code if anything goes wrong.
-  */
-  if( SQLITE_OK!=(rc = read32bits(pPager->jfd, iHdrOff+8, pNRec))
-   || SQLITE_OK!=(rc = read32bits(pPager->jfd, iHdrOff+12, &pPager->cksumInit))
-   || SQLITE_OK!=(rc = read32bits(pPager->jfd, iHdrOff+16, pDbSize))
-  ){
-    return rc;
-  }
-
-  if( pPager->journalOff==0 ){
-    u32 iPageSize;               /* Page-size field of journal header */
-    u32 iSectorSize;             /* Sector-size field of journal header */
-
-    /* Read the page-size and sector-size journal header fields. */
-    if( SQLITE_OK!=(rc = read32bits(pPager->jfd, iHdrOff+20, &iSectorSize))
-     || SQLITE_OK!=(rc = read32bits(pPager->jfd, iHdrOff+24, &iPageSize))
-    ){
-      return rc;
-    }
-
-    /* Versions of SQLite prior to 3.5.8 set the page-size field of the
-    ** journal header to zero. In this case, assume that the Pager.pageSize
-    ** variable is already set to the correct page size.
-    */
-    if( iPageSize==0 ){
-      iPageSize = pPager->pageSize;
-    }
-
-    /* Check that the values read from the page-size and sector-size fields
-    ** are within range. To be 'in range', both values need to be a power
-    ** of two greater than or equal to 512 or 32, and not greater than their 
-    ** respective compile time maximum limits.
-    */
-    if( iPageSize<512                  || iSectorSize<32
-     || iPageSize>SQLITE_MAX_PAGE_SIZE || iSectorSize>MAX_SECTOR_SIZE
-     || ((iPageSize-1)&iPageSize)!=0   || ((iSectorSize-1)&iSectorSize)!=0 
-    ){
-      /* If the either the page-size or sector-size in the journal-header is 
-      ** invalid, then the process that wrote the journal-header must have 
-      ** crashed before the header was synced. In this case stop reading 
-      ** the journal file here.
-      */
-      return SQLITE_DONE;
-    }
-
-    /* Update the page-size to match the value read from the journal. 
-    ** Use a testcase() macro to make sure that malloc failure within 
-    ** PagerSetPagesize() is tested.
-    */
-    rc = tdsqlite3PagerSetPagesize(pPager, &iPageSize, -1);
-    testcase( rc!=SQLITE_OK );
-
-    /* Update the assumed sector-size to match the value used by 
-    ** the process that created this journal. If this journal was
-    ** created by a process other than this one, then this routine
-    ** is being called from within pager_playback(). The local value
-    ** of Pager.sectorSize is restored at the end of that routine.
-    */
-    pPager->sectorSize = iSectorSize;
-  }
-
-  pPager->journalOff += JOURNAL_HDR_SZ(pPager);
-  return rc;
-}
-
-
-/*
-** Write the supplied master journal name into the journal file for pager
-** pPager at the current location. The master journal name must be the last
-** thing written to a journal file. If the pager is in full-sync mode, the
-** journal file descriptor is advanced to the next sector boundary before
-** anything is written. The format is:
-**
-**   + 4 bytes: PAGER_MJ_PGNO.
-**   + N bytes: Master journal filename in utf-8.
-**   + 4 bytes: N (length of master journal name in bytes, no nul-terminator).
-**   + 4 bytes: Master journal name checksum.
-**   + 8 bytes: aJournalMagic[].
-**
-** The master journal page checksum is the sum of the bytes in the master
-** journal name, where each byte is interpreted as a signed 8-bit integer.
-**
-** If zMaster is a NULL pointer (occurs for a single database transaction), 
-** this call is a no-op.
-*/
-static int writeMasterJournal(Pager *pPager, const char *zMaster){
-  int rc;                          /* Return code */
-  int nMaster;                     /* Length of string zMaster */
-  i64 iHdrOff;                     /* Offset of header in journal file */
-  i64 jrnlSize;                    /* Size of journal file on disk */
-  u32 cksum = 0;                   /* Checksum of string zMaster */
-
-  assert( pPager->setMaster==0 );
-  assert( !pagerUseWal(pPager) );
-
-  if( !zMaster 
-   || pPager->journalMode==PAGER_JOURNALMODE_MEMORY 
-   || !isOpen(pPager->jfd)
-  ){
-    return SQLITE_OK;
-  }
-  pPager->setMaster = 1;
-  assert( pPager->journalHdr <= pPager->journalOff );
-
-  /* Calculate the length in bytes and the checksum of zMaster */
-  for(nMaster=0; zMaster[nMaster]; nMaster++){
-    cksum += zMaster[nMaster];
-  }
-
-  /* If in full-sync mode, advance to the next disk sector before writing
-  ** the master journal name. This is in case the previous page written to
-  ** the journal has already been synced.
-  */
-  if( pPager->fullSync ){
-    pPager->journalOff = journalHdrOffset(pPager);
-  }
-  iHdrOff = pPager->journalOff;
-
-  /* Write the master journal data to the end of the journal file. If
-  ** an error occurs, return the error code to the caller.
-  */
-  if( (0 != (rc = write32bits(pPager->jfd, iHdrOff, PAGER_MJ_PGNO(pPager))))
-   || (0 != (rc = tdsqlite3OsWrite(pPager->jfd, zMaster, nMaster, iHdrOff+4)))
-   || (0 != (rc = write32bits(pPager->jfd, iHdrOff+4+nMaster, nMaster)))
-   || (0 != (rc = write32bits(pPager->jfd, iHdrOff+4+nMaster+4, cksum)))
-   || (0 != (rc = tdsqlite3OsWrite(pPager->jfd, aJournalMagic, 8,
-                                 iHdrOff+4+nMaster+8)))
-  ){
-    return rc;
-  }
-  pPager->journalOff += (nMaster+20);
-
-  /* If the pager is in peristent-journal mode, then the physical 
-  ** journal-file may extend past the end of the master-journal name
-  ** and 8 bytes of magic data just written to the file. This is 
-  ** dangerous because the code to rollback a hot-journal file
-  ** will not be able to find the master-journal name to determine 
-  ** whether or not the journal is hot. 
-  **
-  ** Easiest thing to do in this scenario is to truncate the journal 
-  ** file to the required size.
-  */ 
-  if( SQLITE_OK==(rc = tdsqlite3OsFileSize(pPager->jfd, &jrnlSize))
-   && jrnlSize>pPager->journalOff
-  ){
-    rc = tdsqlite3OsTruncate(pPager->jfd, pPager->journalOff);
-  }
-  return rc;
-}
-
-/*
-** Discard the entire contents of the in-memory page-cache.
-*/
-static void pager_reset(Pager *pPager){
-  pPager->iDataVersion++;
-  tdsqlite3BackupRestart(pPager->pBackup);
-  tdsqlite3PcacheClear(pPager->pPCache);
-}
-
-/*
-** Return the pPager->iDataVersion value
-*/
-SQLITE_PRIVATE u32 tdsqlite3PagerDataVersion(Pager *pPager){
-  return pPager->iDataVersion;
-}
-
-/*
-** Free all structures in the Pager.aSavepoint[] array and set both
-** Pager.aSavepoint and Pager.nSavepoint to zero. Close the sub-journal
-** if it is open and the pager is not in exclusive mode.
-*/
-static void releaseAllSavepoints(Pager *pPager){
-  int ii;               /* Iterator for looping through Pager.aSavepoint */
-  for(ii=0; ii<pPager->nSavepoint; ii++){
-    tdsqlite3BitvecDestroy(pPager->aSavepoint[ii].pInSavepoint);
-  }
-  if( !pPager->exclusiveMode || tdsqlite3JournalIsInMemory(pPager->sjfd) ){
-    tdsqlite3OsClose(pPager->sjfd);
-  }
-  tdsqlite3_free(pPager->aSavepoint);
-  pPager->aSavepoint = 0;
-  pPager->nSavepoint = 0;
-  pPager->nSubRec = 0;
-}
-
-/*
-** Set the bit number pgno in the PagerSavepoint.pInSavepoint 
-** bitvecs of all open savepoints. Return SQLITE_OK if successful
-** or SQLITE_NOMEM if a malloc failure occurs.
-*/
-static int addToSavepointBitvecs(Pager *pPager, Pgno pgno){
-  int ii;                   /* Loop counter */
-  int rc = SQLITE_OK;       /* Result code */
-
-  for(ii=0; ii<pPager->nSavepoint; ii++){
-    PagerSavepoint *p = &pPager->aSavepoint[ii];
-    if( pgno<=p->nOrig ){
-      rc |= tdsqlite3BitvecSet(p->pInSavepoint, pgno);
-      testcase( rc==SQLITE_NOMEM );
-      assert( rc==SQLITE_OK || rc==SQLITE_NOMEM );
-    }
-  }
-  return rc;
-}
-
-/*
-** This function is a no-op if the pager is in exclusive mode and not
-** in the ERROR state. Otherwise, it switches the pager to PAGER_OPEN
-** state.
-**
-** If the pager is not in exclusive-access mode, the database file is
-** completely unlocked. If the file is unlocked and the file-system does
-** not exhibit the UNDELETABLE_WHEN_OPEN property, the journal file is
-** closed (if it is open).
-**
-** If the pager is in ERROR state when this function is called, the 
-** contents of the pager cache are discarded before switching back to 
-** the OPEN state. Regardless of whether the pager is in exclusive-mode
-** or not, any journal file left in the file-system will be treated
-** as a hot-journal and rolled back the next time a read-transaction
-** is opened (by this or by any other connection).
-*/
-static void pager_unlock(Pager *pPager){
-
-  assert( pPager->eState==PAGER_READER 
-       || pPager->eState==PAGER_OPEN 
-       || pPager->eState==PAGER_ERROR 
-  );
-
-  tdsqlite3BitvecDestroy(pPager->pInJournal);
-  pPager->pInJournal = 0;
-  releaseAllSavepoints(pPager);
-
-  if( pagerUseWal(pPager) ){
-    assert( !isOpen(pPager->jfd) );
-    tdsqlite3WalEndReadTransaction(pPager->pWal);
-    pPager->eState = PAGER_OPEN;
-  }else if( !pPager->exclusiveMode ){
-    int rc;                       /* Error code returned by pagerUnlockDb() */
-    int iDc = isOpen(pPager->fd)?tdsqlite3OsDeviceCharacteristics(pPager->fd):0;
-
-    /* If the operating system support deletion of open files, then
-    ** close the journal file when dropping the database lock.  Otherwise
-    ** another connection with journal_mode=delete might delete the file
-    ** out from under us.
-    */
-    assert( (PAGER_JOURNALMODE_MEMORY   & 5)!=1 );
-    assert( (PAGER_JOURNALMODE_OFF      & 5)!=1 );
-    assert( (PAGER_JOURNALMODE_WAL      & 5)!=1 );
-    assert( (PAGER_JOURNALMODE_DELETE   & 5)!=1 );
-    assert( (PAGER_JOURNALMODE_TRUNCATE & 5)==1 );
-    assert( (PAGER_JOURNALMODE_PERSIST  & 5)==1 );
-    if( 0==(iDc & SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN)
-     || 1!=(pPager->journalMode & 5)
-    ){
-      tdsqlite3OsClose(pPager->jfd);
-    }
-
-    /* If the pager is in the ERROR state and the call to unlock the database
-    ** file fails, set the current lock to UNKNOWN_LOCK. See the comment
-    ** above the #define for UNKNOWN_LOCK for an explanation of why this
-    ** is necessary.
-    */
-    rc = pagerUnlockDb(pPager, NO_LOCK);
-    if( rc!=SQLITE_OK && pPager->eState==PAGER_ERROR ){
-      pPager->eLock = UNKNOWN_LOCK;
-    }
-
-    /* The pager state may be changed from PAGER_ERROR to PAGER_OPEN here
-    ** without clearing the error code. This is intentional - the error
-    ** code is cleared and the cache reset in the block below.
-    */
-    assert( pPager->errCode || pPager->eState!=PAGER_ERROR );
-    pPager->eState = PAGER_OPEN;
-  }
-
-  /* If Pager.errCode is set, the contents of the pager cache cannot be
-  ** trusted. Now that there are no outstanding references to the pager,
-  ** it can safely move back to PAGER_OPEN state. This happens in both
-  ** normal and exclusive-locking mode.
-  */
-  assert( pPager->errCode==SQLITE_OK || !MEMDB );
-  if( pPager->errCode ){
-    if( pPager->tempFile==0 ){
-      pager_reset(pPager);
-      pPager->changeCountDone = 0;
-      pPager->eState = PAGER_OPEN;
-    }else{
-      pPager->eState = (isOpen(pPager->jfd) ? PAGER_OPEN : PAGER_READER);
-    }
-    if( USEFETCH(pPager) ) tdsqlite3OsUnfetch(pPager->fd, 0, 0);
-    pPager->errCode = SQLITE_OK;
-    setGetterMethod(pPager);
-  }
-
-  pPager->journalOff = 0;
-  pPager->journalHdr = 0;
-  pPager->setMaster = 0;
-}
-
-/*
-** This function is called whenever an IOERR or FULL error that requires
-** the pager to transition into the ERROR state may ahve occurred.
-** The first argument is a pointer to the pager structure, the second 
-** the error-code about to be returned by a pager API function. The 
-** value returned is a copy of the second argument to this function. 
-**
-** If the second argument is SQLITE_FULL, SQLITE_IOERR or one of the
-** IOERR sub-codes, the pager enters the ERROR state and the error code
-** is stored in Pager.errCode. While the pager remains in the ERROR state,
-** all major API calls on the Pager will immediately return Pager.errCode.
-**
-** The ERROR state indicates that the contents of the pager-cache 
-** cannot be trusted. This state can be cleared by completely discarding 
-** the contents of the pager-cache. If a transaction was active when
-** the persistent error occurred, then the rollback journal may need
-** to be replayed to restore the contents of the database file (as if
-** it were a hot-journal).
-*/
-static int pager_error(Pager *pPager, int rc){
-  int rc2 = rc & 0xff;
-  assert( rc==SQLITE_OK || !MEMDB );
-  assert(
-       pPager->errCode==SQLITE_FULL ||
-       pPager->errCode==SQLITE_OK ||
-       (pPager->errCode & 0xff)==SQLITE_IOERR
-  );
-  if( rc2==SQLITE_FULL || rc2==SQLITE_IOERR ){
-    pPager->errCode = rc;
-    pPager->eState = PAGER_ERROR;
-    setGetterMethod(pPager);
-  }
-  return rc;
-}
-
-static int pager_truncate(Pager *pPager, Pgno nPage);
-
-/*
-** The write transaction open on pPager is being committed (bCommit==1)
-** or rolled back (bCommit==0).
-**
-** Return TRUE if and only if all dirty pages should be flushed to disk.
-**
-** Rules:
-**
-**   *  For non-TEMP databases, always sync to disk.  This is necessary
-**      for transactions to be durable.
-**
-**   *  Sync TEMP database only on a COMMIT (not a ROLLBACK) when the backing
-**      file has been created already (via a spill on pagerStress()) and
-**      when the number of dirty pages in memory exceeds 25% of the total
-**      cache size.
-*/
-static int pagerFlushOnCommit(Pager *pPager, int bCommit){
-  if( pPager->tempFile==0 ) return 1;
-  if( !bCommit ) return 0;
-  if( !isOpen(pPager->fd) ) return 0;
-  return (tdsqlite3PCachePercentDirty(pPager->pPCache)>=25);
-}
-
-/*
-** This routine ends a transaction. A transaction is usually ended by 
-** either a COMMIT or a ROLLBACK operation. This routine may be called 
-** after rollback of a hot-journal, or if an error occurs while opening
-** the journal file or writing the very first journal-header of a
-** database transaction.
-** 
-** This routine is never called in PAGER_ERROR state. If it is called
-** in PAGER_NONE or PAGER_SHARED state and the lock held is less
-** exclusive than a RESERVED lock, it is a no-op.
-**
-** Otherwise, any active savepoints are released.
-**
-** If the journal file is open, then it is "finalized". Once a journal 
-** file has been finalized it is not possible to use it to roll back a 
-** transaction. Nor will it be considered to be a hot-journal by this
-** or any other database connection. Exactly how a journal is finalized
-** depends on whether or not the pager is running in exclusive mode and
-** the current journal-mode (Pager.journalMode value), as follows:
-**
-**   journalMode==MEMORY
-**     Journal file descriptor is simply closed. This destroys an 
-**     in-memory journal.
-**
-**   journalMode==TRUNCATE
-**     Journal file is truncated to zero bytes in size.
-**
-**   journalMode==PERSIST
-**     The first 28 bytes of the journal file are zeroed. This invalidates
-**     the first journal header in the file, and hence the entire journal
-**     file. An invalid journal file cannot be rolled back.
-**
-**   journalMode==DELETE
-**     The journal file is closed and deleted using tdsqlite3OsDelete().
-**
-**     If the pager is running in exclusive mode, this method of finalizing
-**     the journal file is never used. Instead, if the journalMode is
-**     DELETE and the pager is in exclusive mode, the method described under
-**     journalMode==PERSIST is used instead.
-**
-** After the journal is finalized, the pager moves to PAGER_READER state.
-** If running in non-exclusive rollback mode, the lock on the file is 
-** downgraded to a SHARED_LOCK.
-**
-** SQLITE_OK is returned if no error occurs. If an error occurs during
-** any of the IO operations to finalize the journal file or unlock the
-** database then the IO error code is returned to the user. If the 
-** operation to finalize the journal file fails, then the code still
-** tries to unlock the database file if not in exclusive mode. If the
-** unlock operation fails as well, then the first error code related
-** to the first error encountered (the journal finalization one) is
-** returned.
-*/
-static int pager_end_transaction(Pager *pPager, int hasMaster, int bCommit){
-  int rc = SQLITE_OK;      /* Error code from journal finalization operation */
-  int rc2 = SQLITE_OK;     /* Error code from db file unlock operation */
-
-  /* Do nothing if the pager does not have an open write transaction
-  ** or at least a RESERVED lock. This function may be called when there
-  ** is no write-transaction active but a RESERVED or greater lock is
-  ** held under two circumstances:
-  **
-  **   1. After a successful hot-journal rollback, it is called with
-  **      eState==PAGER_NONE and eLock==EXCLUSIVE_LOCK.
-  **
-  **   2. If a connection with locking_mode=exclusive holding an EXCLUSIVE 
-  **      lock switches back to locking_mode=normal and then executes a
-  **      read-transaction, this function is called with eState==PAGER_READER 
-  **      and eLock==EXCLUSIVE_LOCK when the read-transaction is closed.
-  */
-  assert( assert_pager_state(pPager) );
-  assert( pPager->eState!=PAGER_ERROR );
-  if( pPager->eState<PAGER_WRITER_LOCKED && pPager->eLock<RESERVED_LOCK ){
-    return SQLITE_OK;
-  }
-
-  releaseAllSavepoints(pPager);
-  assert( isOpen(pPager->jfd) || pPager->pInJournal==0 
-      || (tdsqlite3OsDeviceCharacteristics(pPager->fd)&SQLITE_IOCAP_BATCH_ATOMIC)
-  );
-  if( isOpen(pPager->jfd) ){
-    assert( !pagerUseWal(pPager) );
-
-    /* Finalize the journal file. */
-    if( tdsqlite3JournalIsInMemory(pPager->jfd) ){
-      /* assert( pPager->journalMode==PAGER_JOURNALMODE_MEMORY ); */
-      tdsqlite3OsClose(pPager->jfd);
-    }else if( pPager->journalMode==PAGER_JOURNALMODE_TRUNCATE ){
-      if( pPager->journalOff==0 ){
-        rc = SQLITE_OK;
-      }else{
-        rc = tdsqlite3OsTruncate(pPager->jfd, 0);
-        if( rc==SQLITE_OK && pPager->fullSync ){
-          /* Make sure the new file size is written into the inode right away.
-          ** Otherwise the journal might resurrect following a power loss and
-          ** cause the last transaction to roll back.  See
-          ** https://bugzilla.mozilla.org/show_bug.cgi?id=1072773
-          */
-          rc = tdsqlite3OsSync(pPager->jfd, pPager->syncFlags);
-        }
-      }
-      pPager->journalOff = 0;
-    }else if( pPager->journalMode==PAGER_JOURNALMODE_PERSIST
-      || (pPager->exclusiveMode && pPager->journalMode!=PAGER_JOURNALMODE_WAL)
-    ){
-      rc = zeroJournalHdr(pPager, hasMaster||pPager->tempFile);
-      pPager->journalOff = 0;
-    }else{
-      /* This branch may be executed with Pager.journalMode==MEMORY if
-      ** a hot-journal was just rolled back. In this case the journal
-      ** file should be closed and deleted. If this connection writes to
-      ** the database file, it will do so using an in-memory journal.
-      */
-      int bDelete = !pPager->tempFile;
-      assert( tdsqlite3JournalIsInMemory(pPager->jfd)==0 );
-      assert( pPager->journalMode==PAGER_JOURNALMODE_DELETE 
-           || pPager->journalMode==PAGER_JOURNALMODE_MEMORY 
-           || pPager->journalMode==PAGER_JOURNALMODE_WAL 
-      );
-      tdsqlite3OsClose(pPager->jfd);
-      if( bDelete ){
-        rc = tdsqlite3OsDelete(pPager->pVfs, pPager->zJournal, pPager->extraSync);
-      }
-    }
-  }
-
-#ifdef SQLITE_CHECK_PAGES
-  tdsqlite3PcacheIterateDirty(pPager->pPCache, pager_set_pagehash);
-  if( pPager->dbSize==0 && tdsqlite3PcacheRefCount(pPager->pPCache)>0 ){
-    PgHdr *p = tdsqlite3PagerLookup(pPager, 1);
-    if( p ){
-      p->pageHash = 0;
-      tdsqlite3PagerUnrefNotNull(p);
-    }
-  }
-#endif
-
-  tdsqlite3BitvecDestroy(pPager->pInJournal);
-  pPager->pInJournal = 0;
-  pPager->nRec = 0;
-  if( rc==SQLITE_OK ){
-    if( MEMDB || pagerFlushOnCommit(pPager, bCommit) ){
-      tdsqlite3PcacheCleanAll(pPager->pPCache);
-    }else{
-      tdsqlite3PcacheClearWritable(pPager->pPCache);
-    }
-    tdsqlite3PcacheTruncate(pPager->pPCache, pPager->dbSize);
-  }
-
-  if( pagerUseWal(pPager) ){
-    /* Drop the WAL write-lock, if any. Also, if the connection was in 
-    ** locking_mode=exclusive mode but is no longer, drop the EXCLUSIVE 
-    ** lock held on the database file.
-    */
-    rc2 = tdsqlite3WalEndWriteTransaction(pPager->pWal);
-    assert( rc2==SQLITE_OK );
-  }else if( rc==SQLITE_OK && bCommit && pPager->dbFileSize>pPager->dbSize ){
-    /* This branch is taken when committing a transaction in rollback-journal
-    ** mode if the database file on disk is larger than the database image.
-    ** At this point the journal has been finalized and the transaction 
-    ** successfully committed, but the EXCLUSIVE lock is still held on the
-    ** file. So it is safe to truncate the database file to its minimum
-    ** required size.  */
-    assert( pPager->eLock==EXCLUSIVE_LOCK );
-    rc = pager_truncate(pPager, pPager->dbSize);
-  }
-
-  if( rc==SQLITE_OK && bCommit ){
-    rc = tdsqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_COMMIT_PHASETWO, 0);
-    if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
-  }
-
-  if( !pPager->exclusiveMode 
-   && (!pagerUseWal(pPager) || tdsqlite3WalExclusiveMode(pPager->pWal, 0))
-  ){
-    rc2 = pagerUnlockDb(pPager, SHARED_LOCK);
-  }
-  pPager->eState = PAGER_READER;
-  pPager->setMaster = 0;
-
-  return (rc==SQLITE_OK?rc2:rc);
-}
-
-/*
-** Execute a rollback if a transaction is active and unlock the 
-** database file. 
-**
-** If the pager has already entered the ERROR state, do not attempt 
-** the rollback at this time. Instead, pager_unlock() is called. The
-** call to pager_unlock() will discard all in-memory pages, unlock
-** the database file and move the pager back to OPEN state. If this 
-** means that there is a hot-journal left in the file-system, the next 
-** connection to obtain a shared lock on the pager (which may be this one) 
-** will roll it back.
-**
-** If the pager has not already entered the ERROR state, but an IO or
-** malloc error occurs during a rollback, then this will itself cause 
-** the pager to enter the ERROR state. Which will be cleared by the
-** call to pager_unlock(), as described above.
-*/
-static void pagerUnlockAndRollback(Pager *pPager){
-  if( pPager->eState!=PAGER_ERROR && pPager->eState!=PAGER_OPEN ){
-    assert( assert_pager_state(pPager) );
-    if( pPager->eState>=PAGER_WRITER_LOCKED ){
-      tdsqlite3BeginBenignMalloc();
-      tdsqlite3PagerRollback(pPager);
-      tdsqlite3EndBenignMalloc();
-    }else if( !pPager->exclusiveMode ){
-      assert( pPager->eState==PAGER_READER );
-      pager_end_transaction(pPager, 0, 0);
-    }
-  }
-  pager_unlock(pPager);
-}
-
-/*
-** Parameter aData must point to a buffer of pPager->pageSize bytes
-** of data. Compute and return a checksum based ont the contents of the 
-** page of data and the current value of pPager->cksumInit.
-**
-** This is not a real checksum. It is really just the sum of the 
-** random initial value (pPager->cksumInit) and every 200th byte
-** of the page data, starting with byte offset (pPager->pageSize%200).
-** Each byte is interpreted as an 8-bit unsigned integer.
-**
-** Changing the formula used to compute this checksum results in an
-** incompatible journal file format.
-**
-** If journal corruption occurs due to a power failure, the most likely 
-** scenario is that one end or the other of the record will be changed. 
-** It is much less likely that the two ends of the journal record will be
-** correct and the middle be corrupt.  Thus, this "checksum" scheme,
-** though fast and simple, catches the mostly likely kind of corruption.
-*/
-static u32 pager_cksum(Pager *pPager, const u8 *aData){
-  u32 cksum = pPager->cksumInit;         /* Checksum value to return */
-  int i = pPager->pageSize-200;          /* Loop counter */
-  while( i>0 ){
-    cksum += aData[i];
-    i -= 200;
-  }
-  return cksum;
-}
-
-/*
-** Report the current page size and number of reserved bytes back
-** to the codec.
-*/
-#ifdef SQLITE_HAS_CODEC
-static void pagerReportSize(Pager *pPager){
-  if( pPager->xCodecSizeChng ){
-    pPager->xCodecSizeChng(pPager->pCodec, pPager->pageSize,
-                           (int)pPager->nReserve);
-  }
-}
-#else
-# define pagerReportSize(X)     /* No-op if we do not support a codec */
-#endif
-
-#ifdef SQLITE_HAS_CODEC
-/*
-** Make sure the number of reserved bits is the same in the destination
-** pager as it is in the source.  This comes up when a VACUUM changes the
-** number of reserved bits to the "optimal" amount.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerAlignReserve(Pager *pDest, Pager *pSrc){
-  if( pDest->nReserve!=pSrc->nReserve ){
-    pDest->nReserve = pSrc->nReserve;
-    pagerReportSize(pDest);
-  }
-}
-#endif
-
-/*
-** Read a single page from either the journal file (if isMainJrnl==1) or
-** from the sub-journal (if isMainJrnl==0) and playback that page.
-** The page begins at offset *pOffset into the file. The *pOffset
-** value is increased to the start of the next page in the journal.
-**
-** The main rollback journal uses checksums - the statement journal does 
-** not.
-**
-** If the page number of the page record read from the (sub-)journal file
-** is greater than the current value of Pager.dbSize, then playback is
-** skipped and SQLITE_OK is returned.
-**
-** If pDone is not NULL, then it is a record of pages that have already
-** been played back.  If the page at *pOffset has already been played back
-** (if the corresponding pDone bit is set) then skip the playback.
-** Make sure the pDone bit corresponding to the *pOffset page is set
-** prior to returning.
-**
-** If the page record is successfully read from the (sub-)journal file
-** and played back, then SQLITE_OK is returned. If an IO error occurs
-** while reading the record from the (sub-)journal file or while writing
-** to the database file, then the IO error code is returned. If data
-** is successfully read from the (sub-)journal file but appears to be
-** corrupted, SQLITE_DONE is returned. Data is considered corrupted in
-** two circumstances:
-** 
-**   * If the record page-number is illegal (0 or PAGER_MJ_PGNO), or
-**   * If the record is being rolled back from the main journal file
-**     and the checksum field does not match the record content.
-**
-** Neither of these two scenarios are possible during a savepoint rollback.
-**
-** If this is a savepoint rollback, then memory may have to be dynamically
-** allocated by this function. If this is the case and an allocation fails,
-** SQLITE_NOMEM is returned.
-*/
-static int pager_playback_one_page(
-  Pager *pPager,                /* The pager being played back */
-  i64 *pOffset,                 /* Offset of record to playback */
-  Bitvec *pDone,                /* Bitvec of pages already played back */
-  int isMainJrnl,               /* 1 -> main journal. 0 -> sub-journal. */
-  int isSavepnt                 /* True for a savepoint rollback */
-){
-  int rc;
-  PgHdr *pPg;                   /* An existing page in the cache */
-  Pgno pgno;                    /* The page number of a page in journal */
-  u32 cksum;                    /* Checksum used for sanity checking */
-  char *aData;                  /* Temporary storage for the page */
-  tdsqlite3_file *jfd;            /* The file descriptor for the journal file */
-  int isSynced;                 /* True if journal page is synced */
-#ifdef SQLITE_HAS_CODEC
-  /* The jrnlEnc flag is true if Journal pages should be passed through
-  ** the codec.  It is false for pure in-memory journals. */
-  const int jrnlEnc = (isMainJrnl || pPager->subjInMemory==0);
-#endif
-
-  assert( (isMainJrnl&~1)==0 );      /* isMainJrnl is 0 or 1 */
-  assert( (isSavepnt&~1)==0 );       /* isSavepnt is 0 or 1 */
-  assert( isMainJrnl || pDone );     /* pDone always used on sub-journals */
-  assert( isSavepnt || pDone==0 );   /* pDone never used on non-savepoint */
-
-  aData = pPager->pTmpSpace;
-  assert( aData );         /* Temp storage must have already been allocated */
-  assert( pagerUseWal(pPager)==0 || (!isMainJrnl && isSavepnt) );
-
-  /* Either the state is greater than PAGER_WRITER_CACHEMOD (a transaction 
-  ** or savepoint rollback done at the request of the caller) or this is
-  ** a hot-journal rollback. If it is a hot-journal rollback, the pager
-  ** is in state OPEN and holds an EXCLUSIVE lock. Hot-journal rollback
-  ** only reads from the main journal, not the sub-journal.
-  */
-  assert( pPager->eState>=PAGER_WRITER_CACHEMOD
-       || (pPager->eState==PAGER_OPEN && pPager->eLock==EXCLUSIVE_LOCK)
-  );
-  assert( pPager->eState>=PAGER_WRITER_CACHEMOD || isMainJrnl );
-
-  /* Read the page number and page data from the journal or sub-journal
-  ** file. Return an error code to the caller if an IO error occurs.
-  */
-  jfd = isMainJrnl ? pPager->jfd : pPager->sjfd;
-  rc = read32bits(jfd, *pOffset, &pgno);
-  if( rc!=SQLITE_OK ) return rc;
-  rc = tdsqlite3OsRead(jfd, (u8*)aData, pPager->pageSize, (*pOffset)+4);
-  if( rc!=SQLITE_OK ) return rc;
-  *pOffset += pPager->pageSize + 4 + isMainJrnl*4;
-
-  /* Sanity checking on the page.  This is more important that I originally
-  ** thought.  If a power failure occurs while the journal is being written,
-  ** it could cause invalid data to be written into the journal.  We need to
-  ** detect this invalid data (with high probability) and ignore it.
-  */
-  if( pgno==0 || pgno==PAGER_MJ_PGNO(pPager) ){
-    assert( !isSavepnt );
-    return SQLITE_DONE;
-  }
-  if( pgno>(Pgno)pPager->dbSize || tdsqlite3BitvecTest(pDone, pgno) ){
-    return SQLITE_OK;
-  }
-  if( isMainJrnl ){
-    rc = read32bits(jfd, (*pOffset)-4, &cksum);
-    if( rc ) return rc;
-    if( !isSavepnt && pager_cksum(pPager, (u8*)aData)!=cksum ){
-      return SQLITE_DONE;
-    }
-  }
-
-  /* If this page has already been played back before during the current
-  ** rollback, then don't bother to play it back again.
-  */
-  if( pDone && (rc = tdsqlite3BitvecSet(pDone, pgno))!=SQLITE_OK ){
-    return rc;
-  }
-
-  /* When playing back page 1, restore the nReserve setting
-  */
-  if( pgno==1 && pPager->nReserve!=((u8*)aData)[20] ){
-    pPager->nReserve = ((u8*)aData)[20];
-    pagerReportSize(pPager);
-  }
-
-  /* If the pager is in CACHEMOD state, then there must be a copy of this
-  ** page in the pager cache. In this case just update the pager cache,
-  ** not the database file. The page is left marked dirty in this case.
-  **
-  ** An exception to the above rule: If the database is in no-sync mode
-  ** and a page is moved during an incremental vacuum then the page may
-  ** not be in the pager cache. Later: if a malloc() or IO error occurs
-  ** during a Movepage() call, then the page may not be in the cache
-  ** either. So the condition described in the above paragraph is not
-  ** assert()able.
-  **
-  ** If in WRITER_DBMOD, WRITER_FINISHED or OPEN state, then we update the
-  ** pager cache if it exists and the main file. The page is then marked 
-  ** not dirty. Since this code is only executed in PAGER_OPEN state for
-  ** a hot-journal rollback, it is guaranteed that the page-cache is empty
-  ** if the pager is in OPEN state.
-  **
-  ** Ticket #1171:  The statement journal might contain page content that is
-  ** different from the page content at the start of the transaction.
-  ** This occurs when a page is changed prior to the start of a statement
-  ** then changed again within the statement.  When rolling back such a
-  ** statement we must not write to the original database unless we know
-  ** for certain that original page contents are synced into the main rollback
-  ** journal.  Otherwise, a power loss might leave modified data in the
-  ** database file without an entry in the rollback journal that can
-  ** restore the database to its original form.  Two conditions must be
-  ** met before writing to the database files. (1) the database must be
-  ** locked.  (2) we know that the original page content is fully synced
-  ** in the main journal either because the page is not in cache or else
-  ** the page is marked as needSync==0.
-  **
-  ** 2008-04-14:  When attempting to vacuum a corrupt database file, it
-  ** is possible to fail a statement on a database that does not yet exist.
-  ** Do not attempt to write if database file has never been opened.
-  */
-  if( pagerUseWal(pPager) ){
-    pPg = 0;
-  }else{
-    pPg = tdsqlite3PagerLookup(pPager, pgno);
-  }
-  assert( pPg || !MEMDB );
-  assert( pPager->eState!=PAGER_OPEN || pPg==0 || pPager->tempFile );
-  PAGERTRACE(("PLAYBACK %d page %d hash(%08x) %s\n",
-           PAGERID(pPager), pgno, pager_datahash(pPager->pageSize, (u8*)aData),
-           (isMainJrnl?"main-journal":"sub-journal")
-  ));
-  if( isMainJrnl ){
-    isSynced = pPager->noSync || (*pOffset <= pPager->journalHdr);
-  }else{
-    isSynced = (pPg==0 || 0==(pPg->flags & PGHDR_NEED_SYNC));
-  }
-  if( isOpen(pPager->fd)
-   && (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN)
-   && isSynced
-  ){
-    i64 ofst = (pgno-1)*(i64)pPager->pageSize;
-    testcase( !isSavepnt && pPg!=0 && (pPg->flags&PGHDR_NEED_SYNC)!=0 );
-    assert( !pagerUseWal(pPager) );
-
-    /* Write the data read from the journal back into the database file.
-    ** This is usually safe even for an encrypted database - as the data
-    ** was encrypted before it was written to the journal file. The exception
-    ** is if the data was just read from an in-memory sub-journal. In that
-    ** case it must be encrypted here before it is copied into the database
-    ** file.  */
-#ifdef SQLITE_HAS_CODEC
-    if( !jrnlEnc ){
-      CODEC2(pPager, aData, pgno, 7, rc=SQLITE_NOMEM_BKPT, aData);
-      rc = tdsqlite3OsWrite(pPager->fd, (u8 *)aData, pPager->pageSize, ofst);
-      CODEC1(pPager, aData, pgno, 3, rc=SQLITE_NOMEM_BKPT);
-    }else
-#endif
-    rc = tdsqlite3OsWrite(pPager->fd, (u8 *)aData, pPager->pageSize, ofst);
-
-    if( pgno>pPager->dbFileSize ){
-      pPager->dbFileSize = pgno;
-    }
-    if( pPager->pBackup ){
-#ifdef SQLITE_HAS_CODEC
-      if( jrnlEnc ){
-        CODEC1(pPager, aData, pgno, 3, rc=SQLITE_NOMEM_BKPT);
-        tdsqlite3BackupUpdate(pPager->pBackup, pgno, (u8*)aData);
-        CODEC2(pPager, aData, pgno, 7, rc=SQLITE_NOMEM_BKPT,aData);
-      }else
-#endif
-      tdsqlite3BackupUpdate(pPager->pBackup, pgno, (u8*)aData);
-    }
-  }else if( !isMainJrnl && pPg==0 ){
-    /* If this is a rollback of a savepoint and data was not written to
-    ** the database and the page is not in-memory, there is a potential
-    ** problem. When the page is next fetched by the b-tree layer, it 
-    ** will be read from the database file, which may or may not be 
-    ** current. 
-    **
-    ** There are a couple of different ways this can happen. All are quite
-    ** obscure. When running in synchronous mode, this can only happen 
-    ** if the page is on the free-list at the start of the transaction, then
-    ** populated, then moved using tdsqlite3PagerMovepage().
-    **
-    ** The solution is to add an in-memory page to the cache containing
-    ** the data just read from the sub-journal. Mark the page as dirty 
-    ** and if the pager requires a journal-sync, then mark the page as 
-    ** requiring a journal-sync before it is written.
-    */
-    assert( isSavepnt );
-    assert( (pPager->doNotSpill & SPILLFLAG_ROLLBACK)==0 );
-    pPager->doNotSpill |= SPILLFLAG_ROLLBACK;
-    rc = tdsqlite3PagerGet(pPager, pgno, &pPg, 1);
-    assert( (pPager->doNotSpill & SPILLFLAG_ROLLBACK)!=0 );
-    pPager->doNotSpill &= ~SPILLFLAG_ROLLBACK;
-    if( rc!=SQLITE_OK ) return rc;
-    tdsqlite3PcacheMakeDirty(pPg);
-  }
-  if( pPg ){
-    /* No page should ever be explicitly rolled back that is in use, except
-    ** for page 1 which is held in use in order to keep the lock on the
-    ** database active. However such a page may be rolled back as a result
-    ** of an internal error resulting in an automatic call to
-    ** tdsqlite3PagerRollback().
-    */
-    void *pData;
-    pData = pPg->pData;
-    memcpy(pData, (u8*)aData, pPager->pageSize);
-    pPager->xReiniter(pPg);
-    /* It used to be that tdsqlite3PcacheMakeClean(pPg) was called here.  But
-    ** that call was dangerous and had no detectable benefit since the cache
-    ** is normally cleaned by tdsqlite3PcacheCleanAll() after rollback and so
-    ** has been removed. */
-    pager_set_pagehash(pPg);
-
-    /* If this was page 1, then restore the value of Pager.dbFileVers.
-    ** Do this before any decoding. */
-    if( pgno==1 ){
-      memcpy(&pPager->dbFileVers, &((u8*)pData)[24],sizeof(pPager->dbFileVers));
-    }
-
-    /* Decode the page just read from disk */
-#if SQLITE_HAS_CODEC
-    if( jrnlEnc ){ CODEC1(pPager, pData, pPg->pgno, 3, rc=SQLITE_NOMEM_BKPT); }
-#endif
-    tdsqlite3PcacheRelease(pPg);
-  }
-  return rc;
-}
-
-/*
-** Parameter zMaster is the name of a master journal file. A single journal
-** file that referred to the master journal file has just been rolled back.
-** This routine checks if it is possible to delete the master journal file,
-** and does so if it is.
-**
-** Argument zMaster may point to Pager.pTmpSpace. So that buffer is not 
-** available for use within this function.
-**
-** When a master journal file is created, it is populated with the names 
-** of all of its child journals, one after another, formatted as utf-8 
-** encoded text. The end of each child journal file is marked with a 
-** nul-terminator byte (0x00). i.e. the entire contents of a master journal
-** file for a transaction involving two databases might be:
-**
-**   "/home/bill/a.db-journal\x00/home/bill/b.db-journal\x00"
-**
-** A master journal file may only be deleted once all of its child 
-** journals have been rolled back.
-**
-** This function reads the contents of the master-journal file into 
-** memory and loops through each of the child journal names. For
-** each child journal, it checks if:
-**
-**   * if the child journal exists, and if so
-**   * if the child journal contains a reference to master journal 
-**     file zMaster
-**
-** If a child journal can be found that matches both of the criteria
-** above, this function returns without doing anything. Otherwise, if
-** no such child journal can be found, file zMaster is deleted from
-** the file-system using tdsqlite3OsDelete().
-**
-** If an IO error within this function, an error code is returned. This
-** function allocates memory by calling tdsqlite3Malloc(). If an allocation
-** fails, SQLITE_NOMEM is returned. Otherwise, if no IO or malloc errors 
-** occur, SQLITE_OK is returned.
-**
-** TODO: This function allocates a single block of memory to load
-** the entire contents of the master journal file. This could be
-** a couple of kilobytes or so - potentially larger than the page 
-** size.
-*/
-static int pager_delmaster(Pager *pPager, const char *zMaster){
-  tdsqlite3_vfs *pVfs = pPager->pVfs;
-  int rc;                   /* Return code */
-  tdsqlite3_file *pMaster;    /* Malloc'd master-journal file descriptor */
-  tdsqlite3_file *pJournal;   /* Malloc'd child-journal file descriptor */
-  char *zMasterJournal = 0; /* Contents of master journal file */
-  i64 nMasterJournal;       /* Size of master journal file */
-  char *zJournal;           /* Pointer to one journal within MJ file */
-  char *zMasterPtr;         /* Space to hold MJ filename from a journal file */
-  int nMasterPtr;           /* Amount of space allocated to zMasterPtr[] */
-
-  /* Allocate space for both the pJournal and pMaster file descriptors.
-  ** If successful, open the master journal file for reading.
-  */
-  pMaster = (tdsqlite3_file *)tdsqlite3MallocZero(pVfs->szOsFile * 2);
-  pJournal = (tdsqlite3_file *)(((u8 *)pMaster) + pVfs->szOsFile);
-  if( !pMaster ){
-    rc = SQLITE_NOMEM_BKPT;
-  }else{
-    const int flags = (SQLITE_OPEN_READONLY|SQLITE_OPEN_MASTER_JOURNAL);
-    rc = tdsqlite3OsOpen(pVfs, zMaster, pMaster, flags, 0);
-  }
-  if( rc!=SQLITE_OK ) goto delmaster_out;
-
-  /* Load the entire master journal file into space obtained from
-  ** tdsqlite3_malloc() and pointed to by zMasterJournal.   Also obtain
-  ** sufficient space (in zMasterPtr) to hold the names of master
-  ** journal files extracted from regular rollback-journals.
-  */
-  rc = tdsqlite3OsFileSize(pMaster, &nMasterJournal);
-  if( rc!=SQLITE_OK ) goto delmaster_out;
-  nMasterPtr = pVfs->mxPathname+1;
-  zMasterJournal = tdsqlite3Malloc(nMasterJournal + nMasterPtr + 2);
-  if( !zMasterJournal ){
-    rc = SQLITE_NOMEM_BKPT;
-    goto delmaster_out;
-  }
-  zMasterPtr = &zMasterJournal[nMasterJournal+2];
-  rc = tdsqlite3OsRead(pMaster, zMasterJournal, (int)nMasterJournal, 0);
-  if( rc!=SQLITE_OK ) goto delmaster_out;
-  zMasterJournal[nMasterJournal] = 0;
-  zMasterJournal[nMasterJournal+1] = 0;
-
-  zJournal = zMasterJournal;
-  while( (zJournal-zMasterJournal)<nMasterJournal ){
-    int exists;
-    rc = tdsqlite3OsAccess(pVfs, zJournal, SQLITE_ACCESS_EXISTS, &exists);
-    if( rc!=SQLITE_OK ){
-      goto delmaster_out;
-    }
-    if( exists ){
-      /* One of the journals pointed to by the master journal exists.
-      ** Open it and check if it points at the master journal. If
-      ** so, return without deleting the master journal file.
-      */
-      int c;
-      int flags = (SQLITE_OPEN_READONLY|SQLITE_OPEN_MAIN_JOURNAL);
-      rc = tdsqlite3OsOpen(pVfs, zJournal, pJournal, flags, 0);
-      if( rc!=SQLITE_OK ){
-        goto delmaster_out;
-      }
-
-      rc = readMasterJournal(pJournal, zMasterPtr, nMasterPtr);
-      tdsqlite3OsClose(pJournal);
-      if( rc!=SQLITE_OK ){
-        goto delmaster_out;
-      }
-
-      c = zMasterPtr[0]!=0 && strcmp(zMasterPtr, zMaster)==0;
-      if( c ){
-        /* We have a match. Do not delete the master journal file. */
-        goto delmaster_out;
-      }
-    }
-    zJournal += (tdsqlite3Strlen30(zJournal)+1);
-  }
- 
-  tdsqlite3OsClose(pMaster);
-  rc = tdsqlite3OsDelete(pVfs, zMaster, 0);
-
-delmaster_out:
-  tdsqlite3_free(zMasterJournal);
-  if( pMaster ){
-    tdsqlite3OsClose(pMaster);
-    assert( !isOpen(pJournal) );
-    tdsqlite3_free(pMaster);
-  }
-  return rc;
-}
-
-
-/*
-** This function is used to change the actual size of the database 
-** file in the file-system. This only happens when committing a transaction,
-** or rolling back a transaction (including rolling back a hot-journal).
-**
-** If the main database file is not open, or the pager is not in either
-** DBMOD or OPEN state, this function is a no-op. Otherwise, the size 
-** of the file is changed to nPage pages (nPage*pPager->pageSize bytes). 
-** If the file on disk is currently larger than nPage pages, then use the VFS
-** xTruncate() method to truncate it.
-**
-** Or, it might be the case that the file on disk is smaller than 
-** nPage pages. Some operating system implementations can get confused if 
-** you try to truncate a file to some size that is larger than it 
-** currently is, so detect this case and write a single zero byte to 
-** the end of the new file instead.
-**
-** If successful, return SQLITE_OK. If an IO error occurs while modifying
-** the database file, return the error code to the caller.
-*/
-static int pager_truncate(Pager *pPager, Pgno nPage){
-  int rc = SQLITE_OK;
-  assert( pPager->eState!=PAGER_ERROR );
-  assert( pPager->eState!=PAGER_READER );
-  
-  if( isOpen(pPager->fd) 
-   && (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN) 
-  ){
-    i64 currentSize, newSize;
-    int szPage = pPager->pageSize;
-    assert( pPager->eLock==EXCLUSIVE_LOCK );
-    /* TODO: Is it safe to use Pager.dbFileSize here? */
-    rc = tdsqlite3OsFileSize(pPager->fd, &currentSize);
-    newSize = szPage*(i64)nPage;
-    if( rc==SQLITE_OK && currentSize!=newSize ){
-      if( currentSize>newSize ){
-        rc = tdsqlite3OsTruncate(pPager->fd, newSize);
-      }else if( (currentSize+szPage)<=newSize ){
-        char *pTmp = pPager->pTmpSpace;
-        memset(pTmp, 0, szPage);
-        testcase( (newSize-szPage) == currentSize );
-        testcase( (newSize-szPage) >  currentSize );
-        rc = tdsqlite3OsWrite(pPager->fd, pTmp, szPage, newSize-szPage);
-      }
-      if( rc==SQLITE_OK ){
-        pPager->dbFileSize = nPage;
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** Return a sanitized version of the sector-size of OS file pFile. The
-** return value is guaranteed to lie between 32 and MAX_SECTOR_SIZE.
-*/
-SQLITE_PRIVATE int tdsqlite3SectorSize(tdsqlite3_file *pFile){
-  int iRet = tdsqlite3OsSectorSize(pFile);
-  if( iRet<32 ){
-    iRet = 512;
-  }else if( iRet>MAX_SECTOR_SIZE ){
-    assert( MAX_SECTOR_SIZE>=512 );
-    iRet = MAX_SECTOR_SIZE;
-  }
-  return iRet;
-}
-
-/*
-** Set the value of the Pager.sectorSize variable for the given
-** pager based on the value returned by the xSectorSize method
-** of the open database file. The sector size will be used 
-** to determine the size and alignment of journal header and 
-** master journal pointers within created journal files.
-**
-** For temporary files the effective sector size is always 512 bytes.
-**
-** Otherwise, for non-temporary files, the effective sector size is
-** the value returned by the xSectorSize() method rounded up to 32 if
-** it is less than 32, or rounded down to MAX_SECTOR_SIZE if it
-** is greater than MAX_SECTOR_SIZE.
-**
-** If the file has the SQLITE_IOCAP_POWERSAFE_OVERWRITE property, then set
-** the effective sector size to its minimum value (512).  The purpose of
-** pPager->sectorSize is to define the "blast radius" of bytes that
-** might change if a crash occurs while writing to a single byte in
-** that range.  But with POWERSAFE_OVERWRITE, the blast radius is zero
-** (that is what POWERSAFE_OVERWRITE means), so we minimize the sector
-** size.  For backwards compatibility of the rollback journal file format,
-** we cannot reduce the effective sector size below 512.
-*/
-static void setSectorSize(Pager *pPager){
-  assert( isOpen(pPager->fd) || pPager->tempFile );
-
-  if( pPager->tempFile
-   || (tdsqlite3OsDeviceCharacteristics(pPager->fd) & 
-              SQLITE_IOCAP_POWERSAFE_OVERWRITE)!=0
-  ){
-    /* Sector size doesn't matter for temporary files. Also, the file
-    ** may not have been opened yet, in which case the OsSectorSize()
-    ** call will segfault. */
-    pPager->sectorSize = 512;
-  }else{
-    pPager->sectorSize = tdsqlite3SectorSize(pPager->fd);
-  }
-}
-
-/*
-** Playback the journal and thus restore the database file to
-** the state it was in before we started making changes.  
-**
-** The journal file format is as follows: 
-**
-**  (1)  8 byte prefix.  A copy of aJournalMagic[].
-**  (2)  4 byte big-endian integer which is the number of valid page records
-**       in the journal.  If this value is 0xffffffff, then compute the
-**       number of page records from the journal size.
-**  (3)  4 byte big-endian integer which is the initial value for the 
-**       sanity checksum.
-**  (4)  4 byte integer which is the number of pages to truncate the
-**       database to during a rollback.
-**  (5)  4 byte big-endian integer which is the sector size.  The header
-**       is this many bytes in size.
-**  (6)  4 byte big-endian integer which is the page size.
-**  (7)  zero padding out to the next sector size.
-**  (8)  Zero or more pages instances, each as follows:
-**        +  4 byte page number.
-**        +  pPager->pageSize bytes of data.
-**        +  4 byte checksum
-**
-** When we speak of the journal header, we mean the first 7 items above.
-** Each entry in the journal is an instance of the 8th item.
-**
-** Call the value from the second bullet "nRec".  nRec is the number of
-** valid page entries in the journal.  In most cases, you can compute the
-** value of nRec from the size of the journal file.  But if a power
-** failure occurred while the journal was being written, it could be the
-** case that the size of the journal file had already been increased but
-** the extra entries had not yet made it safely to disk.  In such a case,
-** the value of nRec computed from the file size would be too large.  For
-** that reason, we always use the nRec value in the header.
-**
-** If the nRec value is 0xffffffff it means that nRec should be computed
-** from the file size.  This value is used when the user selects the
-** no-sync option for the journal.  A power failure could lead to corruption
-** in this case.  But for things like temporary table (which will be
-** deleted when the power is restored) we don't care.  
-**
-** If the file opened as the journal file is not a well-formed
-** journal file then all pages up to the first corrupted page are rolled
-** back (or no pages if the journal header is corrupted). The journal file
-** is then deleted and SQLITE_OK returned, just as if no corruption had
-** been encountered.
-**
-** If an I/O or malloc() error occurs, the journal-file is not deleted
-** and an error code is returned.
-**
-** The isHot parameter indicates that we are trying to rollback a journal
-** that might be a hot journal.  Or, it could be that the journal is 
-** preserved because of JOURNALMODE_PERSIST or JOURNALMODE_TRUNCATE.
-** If the journal really is hot, reset the pager cache prior rolling
-** back any content.  If the journal is merely persistent, no reset is
-** needed.
-*/
-static int pager_playback(Pager *pPager, int isHot){
-  tdsqlite3_vfs *pVfs = pPager->pVfs;
-  i64 szJ;                 /* Size of the journal file in bytes */
-  u32 nRec;                /* Number of Records in the journal */
-  u32 u;                   /* Unsigned loop counter */
-  Pgno mxPg = 0;           /* Size of the original file in pages */
-  int rc;                  /* Result code of a subroutine */
-  int res = 1;             /* Value returned by tdsqlite3OsAccess() */
-  char *zMaster = 0;       /* Name of master journal file if any */
-  int needPagerReset;      /* True to reset page prior to first page rollback */
-  int nPlayback = 0;       /* Total number of pages restored from journal */
-  u32 savedPageSize = pPager->pageSize;
-
-  /* Figure out how many records are in the journal.  Abort early if
-  ** the journal is empty.
-  */
-  assert( isOpen(pPager->jfd) );
-  rc = tdsqlite3OsFileSize(pPager->jfd, &szJ);
-  if( rc!=SQLITE_OK ){
-    goto end_playback;
-  }
-
-  /* Read the master journal name from the journal, if it is present.
-  ** If a master journal file name is specified, but the file is not
-  ** present on disk, then the journal is not hot and does not need to be
-  ** played back.
-  **
-  ** TODO: Technically the following is an error because it assumes that
-  ** buffer Pager.pTmpSpace is (mxPathname+1) bytes or larger. i.e. that
-  ** (pPager->pageSize >= pPager->pVfs->mxPathname+1). Using os_unix.c,
-  ** mxPathname is 512, which is the same as the minimum allowable value
-  ** for pageSize.
-  */
-  zMaster = pPager->pTmpSpace;
-  rc = readMasterJournal(pPager->jfd, zMaster, pPager->pVfs->mxPathname+1);
-  if( rc==SQLITE_OK && zMaster[0] ){
-    rc = tdsqlite3OsAccess(pVfs, zMaster, SQLITE_ACCESS_EXISTS, &res);
-  }
-  zMaster = 0;
-  if( rc!=SQLITE_OK || !res ){
-    goto end_playback;
-  }
-  pPager->journalOff = 0;
-  needPagerReset = isHot;
-
-  /* This loop terminates either when a readJournalHdr() or 
-  ** pager_playback_one_page() call returns SQLITE_DONE or an IO error 
-  ** occurs. 
-  */
-  while( 1 ){
-    /* Read the next journal header from the journal file.  If there are
-    ** not enough bytes left in the journal file for a complete header, or
-    ** it is corrupted, then a process must have failed while writing it.
-    ** This indicates nothing more needs to be rolled back.
-    */
-    rc = readJournalHdr(pPager, isHot, szJ, &nRec, &mxPg);
-    if( rc!=SQLITE_OK ){ 
-      if( rc==SQLITE_DONE ){
-        rc = SQLITE_OK;
-      }
-      goto end_playback;
-    }
-
-    /* If nRec is 0xffffffff, then this journal was created by a process
-    ** working in no-sync mode. This means that the rest of the journal
-    ** file consists of pages, there are no more journal headers. Compute
-    ** the value of nRec based on this assumption.
-    */
-    if( nRec==0xffffffff ){
-      assert( pPager->journalOff==JOURNAL_HDR_SZ(pPager) );
-      nRec = (int)((szJ - JOURNAL_HDR_SZ(pPager))/JOURNAL_PG_SZ(pPager));
-    }
-
-    /* If nRec is 0 and this rollback is of a transaction created by this
-    ** process and if this is the final header in the journal, then it means
-    ** that this part of the journal was being filled but has not yet been
-    ** synced to disk.  Compute the number of pages based on the remaining
-    ** size of the file.
-    **
-    ** The third term of the test was added to fix ticket #2565.
-    ** When rolling back a hot journal, nRec==0 always means that the next
-    ** chunk of the journal contains zero pages to be rolled back.  But
-    ** when doing a ROLLBACK and the nRec==0 chunk is the last chunk in
-    ** the journal, it means that the journal might contain additional
-    ** pages that need to be rolled back and that the number of pages 
-    ** should be computed based on the journal file size.
-    */
-    if( nRec==0 && !isHot &&
-        pPager->journalHdr+JOURNAL_HDR_SZ(pPager)==pPager->journalOff ){
-      nRec = (int)((szJ - pPager->journalOff) / JOURNAL_PG_SZ(pPager));
-    }
-
-    /* If this is the first header read from the journal, truncate the
-    ** database file back to its original size.
-    */
-    if( pPager->journalOff==JOURNAL_HDR_SZ(pPager) ){
-      rc = pager_truncate(pPager, mxPg);
-      if( rc!=SQLITE_OK ){
-        goto end_playback;
-      }
-      pPager->dbSize = mxPg;
-    }
-
-    /* Copy original pages out of the journal and back into the 
-    ** database file and/or page cache.
-    */
-    for(u=0; u<nRec; u++){
-      if( needPagerReset ){
-        pager_reset(pPager);
-        needPagerReset = 0;
-      }
-      rc = pager_playback_one_page(pPager,&pPager->journalOff,0,1,0);
-      if( rc==SQLITE_OK ){
-        nPlayback++;
-      }else{
-        if( rc==SQLITE_DONE ){
-          pPager->journalOff = szJ;
-          break;
-        }else if( rc==SQLITE_IOERR_SHORT_READ ){
-          /* If the journal has been truncated, simply stop reading and
-          ** processing the journal. This might happen if the journal was
-          ** not completely written and synced prior to a crash.  In that
-          ** case, the database should have never been written in the
-          ** first place so it is OK to simply abandon the rollback. */
-          rc = SQLITE_OK;
-          goto end_playback;
-        }else{
-          /* If we are unable to rollback, quit and return the error
-          ** code.  This will cause the pager to enter the error state
-          ** so that no further harm will be done.  Perhaps the next
-          ** process to come along will be able to rollback the database.
-          */
-          goto end_playback;
-        }
-      }
-    }
-  }
-  /*NOTREACHED*/
-  assert( 0 );
-
-end_playback:
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3PagerSetPagesize(pPager, &savedPageSize, -1);
-  }
-  /* Following a rollback, the database file should be back in its original
-  ** state prior to the start of the transaction, so invoke the
-  ** SQLITE_FCNTL_DB_UNCHANGED file-control method to disable the
-  ** assertion that the transaction counter was modified.
-  */
-#ifdef SQLITE_DEBUG
-  tdsqlite3OsFileControlHint(pPager->fd,SQLITE_FCNTL_DB_UNCHANGED,0);
-#endif
-
-  /* If this playback is happening automatically as a result of an IO or 
-  ** malloc error that occurred after the change-counter was updated but 
-  ** before the transaction was committed, then the change-counter 
-  ** modification may just have been reverted. If this happens in exclusive 
-  ** mode, then subsequent transactions performed by the connection will not
-  ** update the change-counter at all. This may lead to cache inconsistency
-  ** problems for other processes at some point in the future. So, just
-  ** in case this has happened, clear the changeCountDone flag now.
-  */
-  pPager->changeCountDone = pPager->tempFile;
-
-  if( rc==SQLITE_OK ){
-    zMaster = pPager->pTmpSpace;
-    rc = readMasterJournal(pPager->jfd, zMaster, pPager->pVfs->mxPathname+1);
-    testcase( rc!=SQLITE_OK );
-  }
-  if( rc==SQLITE_OK
-   && (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN)
-  ){
-    rc = tdsqlite3PagerSync(pPager, 0);
-  }
-  if( rc==SQLITE_OK ){
-    rc = pager_end_transaction(pPager, zMaster[0]!='\0', 0);
-    testcase( rc!=SQLITE_OK );
-  }
-  if( rc==SQLITE_OK && zMaster[0] && res ){
-    /* If there was a master journal and this routine will return success,
-    ** see if it is possible to delete the master journal.
-    */
-    rc = pager_delmaster(pPager, zMaster);
-    testcase( rc!=SQLITE_OK );
-  }
-  if( isHot && nPlayback ){
-    tdsqlite3_log(SQLITE_NOTICE_RECOVER_ROLLBACK, "recovered %d pages from %s",
-                nPlayback, pPager->zJournal);
-  }
-
-  /* The Pager.sectorSize variable may have been updated while rolling
-  ** back a journal created by a process with a different sector size
-  ** value. Reset it to the correct value for this process.
-  */
-  setSectorSize(pPager);
-  return rc;
-}
-
-
-/*
-** Read the content for page pPg out of the database file (or out of
-** the WAL if that is where the most recent copy if found) into 
-** pPg->pData. A shared lock or greater must be held on the database
-** file before this function is called.
-**
-** If page 1 is read, then the value of Pager.dbFileVers[] is set to
-** the value read from the database file.
-**
-** If an IO error occurs, then the IO error is returned to the caller.
-** Otherwise, SQLITE_OK is returned.
-*/
-static int readDbPage(PgHdr *pPg){
-  Pager *pPager = pPg->pPager; /* Pager object associated with page pPg */
-  int rc = SQLITE_OK;          /* Return code */
-
-#ifndef SQLITE_OMIT_WAL
-  u32 iFrame = 0;              /* Frame of WAL containing pgno */
-
-  assert( pPager->eState>=PAGER_READER && !MEMDB );
-  assert( isOpen(pPager->fd) );
-
-  if( pagerUseWal(pPager) ){
-    rc = tdsqlite3WalFindFrame(pPager->pWal, pPg->pgno, &iFrame);
-    if( rc ) return rc;
-  }
-  if( iFrame ){
-    rc = tdsqlite3WalReadFrame(pPager->pWal, iFrame,pPager->pageSize,pPg->pData);
-  }else
-#endif
-  {
-    i64 iOffset = (pPg->pgno-1)*(i64)pPager->pageSize;
-    rc = tdsqlite3OsRead(pPager->fd, pPg->pData, pPager->pageSize, iOffset);
-    if( rc==SQLITE_IOERR_SHORT_READ ){
-      rc = SQLITE_OK;
-    }
-  }
-
-  if( pPg->pgno==1 ){
-    if( rc ){
-      /* If the read is unsuccessful, set the dbFileVers[] to something
-      ** that will never be a valid file version.  dbFileVers[] is a copy
-      ** of bytes 24..39 of the database.  Bytes 28..31 should always be
-      ** zero or the size of the database in page. Bytes 32..35 and 35..39
-      ** should be page numbers which are never 0xffffffff.  So filling
-      ** pPager->dbFileVers[] with all 0xff bytes should suffice.
-      **
-      ** For an encrypted database, the situation is more complex:  bytes
-      ** 24..39 of the database are white noise.  But the probability of
-      ** white noise equaling 16 bytes of 0xff is vanishingly small so
-      ** we should still be ok.
-      */
-      memset(pPager->dbFileVers, 0xff, sizeof(pPager->dbFileVers));
-    }else{
-      u8 *dbFileVers = &((u8*)pPg->pData)[24];
-      memcpy(&pPager->dbFileVers, dbFileVers, sizeof(pPager->dbFileVers));
-    }
-  }
-  CODEC1(pPager, pPg->pData, pPg->pgno, 3, rc = SQLITE_NOMEM_BKPT);
-
-  PAGER_INCR(tdsqlite3_pager_readdb_count);
-  PAGER_INCR(pPager->nRead);
-  IOTRACE(("PGIN %p %d\n", pPager, pPg->pgno));
-  PAGERTRACE(("FETCH %d page %d hash(%08x)\n",
-               PAGERID(pPager), pPg->pgno, pager_pagehash(pPg)));
-
-  return rc;
-}
-
-/*
-** Update the value of the change-counter at offsets 24 and 92 in
-** the header and the sqlite version number at offset 96.
-**
-** This is an unconditional update.  See also the pager_incr_changecounter()
-** routine which only updates the change-counter if the update is actually
-** needed, as determined by the pPager->changeCountDone state variable.
-*/
-static void pager_write_changecounter(PgHdr *pPg){
-  u32 change_counter;
-
-  /* Increment the value just read and write it back to byte 24. */
-  change_counter = tdsqlite3Get4byte((u8*)pPg->pPager->dbFileVers)+1;
-  put32bits(((char*)pPg->pData)+24, change_counter);
-
-  /* Also store the SQLite version number in bytes 96..99 and in
-  ** bytes 92..95 store the change counter for which the version number
-  ** is valid. */
-  put32bits(((char*)pPg->pData)+92, change_counter);
-  put32bits(((char*)pPg->pData)+96, SQLITE_VERSION_NUMBER);
-}
-
-#ifndef SQLITE_OMIT_WAL
-/*
-** This function is invoked once for each page that has already been 
-** written into the log file when a WAL transaction is rolled back.
-** Parameter iPg is the page number of said page. The pCtx argument 
-** is actually a pointer to the Pager structure.
-**
-** If page iPg is present in the cache, and has no outstanding references,
-** it is discarded. Otherwise, if there are one or more outstanding
-** references, the page content is reloaded from the database. If the
-** attempt to reload content from the database is required and fails, 
-** return an SQLite error code. Otherwise, SQLITE_OK.
-*/
-static int pagerUndoCallback(void *pCtx, Pgno iPg){
-  int rc = SQLITE_OK;
-  Pager *pPager = (Pager *)pCtx;
-  PgHdr *pPg;
-
-  assert( pagerUseWal(pPager) );
-  pPg = tdsqlite3PagerLookup(pPager, iPg);
-  if( pPg ){
-    if( tdsqlite3PcachePageRefcount(pPg)==1 ){
-      tdsqlite3PcacheDrop(pPg);
-    }else{
-      rc = readDbPage(pPg);
-      if( rc==SQLITE_OK ){
-        pPager->xReiniter(pPg);
-      }
-      tdsqlite3PagerUnrefNotNull(pPg);
-    }
-  }
-
-  /* Normally, if a transaction is rolled back, any backup processes are
-  ** updated as data is copied out of the rollback journal and into the
-  ** database. This is not generally possible with a WAL database, as
-  ** rollback involves simply truncating the log file. Therefore, if one
-  ** or more frames have already been written to the log (and therefore 
-  ** also copied into the backup databases) as part of this transaction,
-  ** the backups must be restarted.
-  */
-  tdsqlite3BackupRestart(pPager->pBackup);
-
-  return rc;
-}
-
-/*
-** This function is called to rollback a transaction on a WAL database.
-*/
-static int pagerRollbackWal(Pager *pPager){
-  int rc;                         /* Return Code */
-  PgHdr *pList;                   /* List of dirty pages to revert */
-
-  /* For all pages in the cache that are currently dirty or have already
-  ** been written (but not committed) to the log file, do one of the 
-  ** following:
-  **
-  **   + Discard the cached page (if refcount==0), or
-  **   + Reload page content from the database (if refcount>0).
-  */
-  pPager->dbSize = pPager->dbOrigSize;
-  rc = tdsqlite3WalUndo(pPager->pWal, pagerUndoCallback, (void *)pPager);
-  pList = tdsqlite3PcacheDirtyList(pPager->pPCache);
-  while( pList && rc==SQLITE_OK ){
-    PgHdr *pNext = pList->pDirty;
-    rc = pagerUndoCallback((void *)pPager, pList->pgno);
-    pList = pNext;
-  }
-
-  return rc;
-}
-
-/*
-** This function is a wrapper around tdsqlite3WalFrames(). As well as logging
-** the contents of the list of pages headed by pList (connected by pDirty),
-** this function notifies any active backup processes that the pages have
-** changed. 
-**
-** The list of pages passed into this routine is always sorted by page number.
-** Hence, if page 1 appears anywhere on the list, it will be the first page.
-*/ 
-static int pagerWalFrames(
-  Pager *pPager,                  /* Pager object */
-  PgHdr *pList,                   /* List of frames to log */
-  Pgno nTruncate,                 /* Database size after this commit */
-  int isCommit                    /* True if this is a commit */
-){
-  int rc;                         /* Return code */
-  int nList;                      /* Number of pages in pList */
-  PgHdr *p;                       /* For looping over pages */
-
-  assert( pPager->pWal );
-  assert( pList );
-#ifdef SQLITE_DEBUG
-  /* Verify that the page list is in accending order */
-  for(p=pList; p && p->pDirty; p=p->pDirty){
-    assert( p->pgno < p->pDirty->pgno );
-  }
-#endif
-
-  assert( pList->pDirty==0 || isCommit );
-  if( isCommit ){
-    /* If a WAL transaction is being committed, there is no point in writing
-    ** any pages with page numbers greater than nTruncate into the WAL file.
-    ** They will never be read by any client. So remove them from the pDirty
-    ** list here. */
-    PgHdr **ppNext = &pList;
-    nList = 0;
-    for(p=pList; (*ppNext = p)!=0; p=p->pDirty){
-      if( p->pgno<=nTruncate ){
-        ppNext = &p->pDirty;
-        nList++;
-      }
-    }
-    assert( pList );
-  }else{
-    nList = 1;
-  }
-  pPager->aStat[PAGER_STAT_WRITE] += nList;
-
-  if( pList->pgno==1 ) pager_write_changecounter(pList);
-  rc = tdsqlite3WalFrames(pPager->pWal, 
-      pPager->pageSize, pList, nTruncate, isCommit, pPager->walSyncFlags
-  );
-  if( rc==SQLITE_OK && pPager->pBackup ){
-    for(p=pList; p; p=p->pDirty){
-      tdsqlite3BackupUpdate(pPager->pBackup, p->pgno, (u8 *)p->pData);
-    }
-  }
-
-#ifdef SQLITE_CHECK_PAGES
-  pList = tdsqlite3PcacheDirtyList(pPager->pPCache);
-  for(p=pList; p; p=p->pDirty){
-    pager_set_pagehash(p);
-  }
-#endif
-
-  return rc;
-}
-
-/*
-** Begin a read transaction on the WAL.
-**
-** This routine used to be called "pagerOpenSnapshot()" because it essentially
-** makes a snapshot of the database at the current point in time and preserves
-** that snapshot for use by the reader in spite of concurrently changes by
-** other writers or checkpointers.
-*/
-static int pagerBeginReadTransaction(Pager *pPager){
-  int rc;                         /* Return code */
-  int changed = 0;                /* True if cache must be reset */
-
-  assert( pagerUseWal(pPager) );
-  assert( pPager->eState==PAGER_OPEN || pPager->eState==PAGER_READER );
-
-  /* tdsqlite3WalEndReadTransaction() was not called for the previous
-  ** transaction in locking_mode=EXCLUSIVE.  So call it now.  If we
-  ** are in locking_mode=NORMAL and EndRead() was previously called,
-  ** the duplicate call is harmless.
-  */
-  tdsqlite3WalEndReadTransaction(pPager->pWal);
-
-  rc = tdsqlite3WalBeginReadTransaction(pPager->pWal, &changed);
-  if( rc!=SQLITE_OK || changed ){
-    pager_reset(pPager);
-    if( USEFETCH(pPager) ) tdsqlite3OsUnfetch(pPager->fd, 0, 0);
-  }
-
-  return rc;
-}
-#endif
-
-/*
-** This function is called as part of the transition from PAGER_OPEN
-** to PAGER_READER state to determine the size of the database file
-** in pages (assuming the page size currently stored in Pager.pageSize).
-**
-** If no error occurs, SQLITE_OK is returned and the size of the database
-** in pages is stored in *pnPage. Otherwise, an error code (perhaps
-** SQLITE_IOERR_FSTAT) is returned and *pnPage is left unmodified.
-*/
-static int pagerPagecount(Pager *pPager, Pgno *pnPage){
-  Pgno nPage;                     /* Value to return via *pnPage */
-
-  /* Query the WAL sub-system for the database size. The WalDbsize()
-  ** function returns zero if the WAL is not open (i.e. Pager.pWal==0), or
-  ** if the database size is not available. The database size is not
-  ** available from the WAL sub-system if the log file is empty or
-  ** contains no valid committed transactions.
-  */
-  assert( pPager->eState==PAGER_OPEN );
-  assert( pPager->eLock>=SHARED_LOCK );
-  assert( isOpen(pPager->fd) );
-  assert( pPager->tempFile==0 );
-  nPage = tdsqlite3WalDbsize(pPager->pWal);
-
-  /* If the number of pages in the database is not available from the
-  ** WAL sub-system, determine the page count based on the size of
-  ** the database file.  If the size of the database file is not an
-  ** integer multiple of the page-size, round up the result.
-  */
-  if( nPage==0 && ALWAYS(isOpen(pPager->fd)) ){
-    i64 n = 0;                    /* Size of db file in bytes */
-    int rc = tdsqlite3OsFileSize(pPager->fd, &n);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    nPage = (Pgno)((n+pPager->pageSize-1) / pPager->pageSize);
-  }
-
-  /* If the current number of pages in the file is greater than the
-  ** configured maximum pager number, increase the allowed limit so
-  ** that the file can be read.
-  */
-  if( nPage>pPager->mxPgno ){
-    pPager->mxPgno = (Pgno)nPage;
-  }
-
-  *pnPage = nPage;
-  return SQLITE_OK;
-}
-
-#ifndef SQLITE_OMIT_WAL
-/*
-** Check if the *-wal file that corresponds to the database opened by pPager
-** exists if the database is not empy, or verify that the *-wal file does
-** not exist (by deleting it) if the database file is empty.
-**
-** If the database is not empty and the *-wal file exists, open the pager
-** in WAL mode.  If the database is empty or if no *-wal file exists and
-** if no error occurs, make sure Pager.journalMode is not set to
-** PAGER_JOURNALMODE_WAL.
-**
-** Return SQLITE_OK or an error code.
-**
-** The caller must hold a SHARED lock on the database file to call this
-** function. Because an EXCLUSIVE lock on the db file is required to delete 
-** a WAL on a none-empty database, this ensures there is no race condition 
-** between the xAccess() below and an xDelete() being executed by some 
-** other connection.
-*/
-static int pagerOpenWalIfPresent(Pager *pPager){
-  int rc = SQLITE_OK;
-  assert( pPager->eState==PAGER_OPEN );
-  assert( pPager->eLock>=SHARED_LOCK );
-
-  if( !pPager->tempFile ){
-    int isWal;                    /* True if WAL file exists */
-    rc = tdsqlite3OsAccess(
-        pPager->pVfs, pPager->zWal, SQLITE_ACCESS_EXISTS, &isWal
-    );
-    if( rc==SQLITE_OK ){
-      if( isWal ){
-        Pgno nPage;                   /* Size of the database file */
-
-        rc = pagerPagecount(pPager, &nPage);
-        if( rc ) return rc;
-        if( nPage==0 ){
-          rc = tdsqlite3OsDelete(pPager->pVfs, pPager->zWal, 0);
-        }else{
-          testcase( tdsqlite3PcachePagecount(pPager->pPCache)==0 );
-          rc = tdsqlite3PagerOpenWal(pPager, 0);
-        }
-      }else if( pPager->journalMode==PAGER_JOURNALMODE_WAL ){
-        pPager->journalMode = PAGER_JOURNALMODE_DELETE;
-      }
-    }
-  }
-  return rc;
-}
-#endif
-
-/*
-** Playback savepoint pSavepoint. Or, if pSavepoint==NULL, then playback
-** the entire master journal file. The case pSavepoint==NULL occurs when 
-** a ROLLBACK TO command is invoked on a SAVEPOINT that is a transaction 
-** savepoint.
-**
-** When pSavepoint is not NULL (meaning a non-transaction savepoint is 
-** being rolled back), then the rollback consists of up to three stages,
-** performed in the order specified:
-**
-**   * Pages are played back from the main journal starting at byte
-**     offset PagerSavepoint.iOffset and continuing to 
-**     PagerSavepoint.iHdrOffset, or to the end of the main journal
-**     file if PagerSavepoint.iHdrOffset is zero.
-**
-**   * If PagerSavepoint.iHdrOffset is not zero, then pages are played
-**     back starting from the journal header immediately following 
-**     PagerSavepoint.iHdrOffset to the end of the main journal file.
-**
-**   * Pages are then played back from the sub-journal file, starting
-**     with the PagerSavepoint.iSubRec and continuing to the end of
-**     the journal file.
-**
-** Throughout the rollback process, each time a page is rolled back, the
-** corresponding bit is set in a bitvec structure (variable pDone in the
-** implementation below). This is used to ensure that a page is only
-** rolled back the first time it is encountered in either journal.
-**
-** If pSavepoint is NULL, then pages are only played back from the main
-** journal file. There is no need for a bitvec in this case.
-**
-** In either case, before playback commences the Pager.dbSize variable
-** is reset to the value that it held at the start of the savepoint 
-** (or transaction). No page with a page-number greater than this value
-** is played back. If one is encountered it is simply skipped.
-*/
-static int pagerPlaybackSavepoint(Pager *pPager, PagerSavepoint *pSavepoint){
-  i64 szJ;                 /* Effective size of the main journal */
-  i64 iHdrOff;             /* End of first segment of main-journal records */
-  int rc = SQLITE_OK;      /* Return code */
-  Bitvec *pDone = 0;       /* Bitvec to ensure pages played back only once */
-
-  assert( pPager->eState!=PAGER_ERROR );
-  assert( pPager->eState>=PAGER_WRITER_LOCKED );
-
-  /* Allocate a bitvec to use to store the set of pages rolled back */
-  if( pSavepoint ){
-    pDone = tdsqlite3BitvecCreate(pSavepoint->nOrig);
-    if( !pDone ){
-      return SQLITE_NOMEM_BKPT;
-    }
-  }
-
-  /* Set the database size back to the value it was before the savepoint 
-  ** being reverted was opened.
-  */
-  pPager->dbSize = pSavepoint ? pSavepoint->nOrig : pPager->dbOrigSize;
-  pPager->changeCountDone = pPager->tempFile;
-
-  if( !pSavepoint && pagerUseWal(pPager) ){
-    return pagerRollbackWal(pPager);
-  }
-
-  /* Use pPager->journalOff as the effective size of the main rollback
-  ** journal.  The actual file might be larger than this in
-  ** PAGER_JOURNALMODE_TRUNCATE or PAGER_JOURNALMODE_PERSIST.  But anything
-  ** past pPager->journalOff is off-limits to us.
-  */
-  szJ = pPager->journalOff;
-  assert( pagerUseWal(pPager)==0 || szJ==0 );
-
-  /* Begin by rolling back records from the main journal starting at
-  ** PagerSavepoint.iOffset and continuing to the next journal header.
-  ** There might be records in the main journal that have a page number
-  ** greater than the current database size (pPager->dbSize) but those
-  ** will be skipped automatically.  Pages are added to pDone as they
-  ** are played back.
-  */
-  if( pSavepoint && !pagerUseWal(pPager) ){
-    iHdrOff = pSavepoint->iHdrOffset ? pSavepoint->iHdrOffset : szJ;
-    pPager->journalOff = pSavepoint->iOffset;
-    while( rc==SQLITE_OK && pPager->journalOff<iHdrOff ){
-      rc = pager_playback_one_page(pPager, &pPager->journalOff, pDone, 1, 1);
-    }
-    assert( rc!=SQLITE_DONE );
-  }else{
-    pPager->journalOff = 0;
-  }
-
-  /* Continue rolling back records out of the main journal starting at
-  ** the first journal header seen and continuing until the effective end
-  ** of the main journal file.  Continue to skip out-of-range pages and
-  ** continue adding pages rolled back to pDone.
-  */
-  while( rc==SQLITE_OK && pPager->journalOff<szJ ){
-    u32 ii;            /* Loop counter */
-    u32 nJRec = 0;     /* Number of Journal Records */
-    u32 dummy;
-    rc = readJournalHdr(pPager, 0, szJ, &nJRec, &dummy);
-    assert( rc!=SQLITE_DONE );
-
-    /*
-    ** The "pPager->journalHdr+JOURNAL_HDR_SZ(pPager)==pPager->journalOff"
-    ** test is related to ticket #2565.  See the discussion in the
-    ** pager_playback() function for additional information.
-    */
-    if( nJRec==0 
-     && pPager->journalHdr+JOURNAL_HDR_SZ(pPager)==pPager->journalOff
-    ){
-      nJRec = (u32)((szJ - pPager->journalOff)/JOURNAL_PG_SZ(pPager));
-    }
-    for(ii=0; rc==SQLITE_OK && ii<nJRec && pPager->journalOff<szJ; ii++){
-      rc = pager_playback_one_page(pPager, &pPager->journalOff, pDone, 1, 1);
-    }
-    assert( rc!=SQLITE_DONE );
-  }
-  assert( rc!=SQLITE_OK || pPager->journalOff>=szJ );
-
-  /* Finally,  rollback pages from the sub-journal.  Page that were
-  ** previously rolled back out of the main journal (and are hence in pDone)
-  ** will be skipped.  Out-of-range pages are also skipped.
-  */
-  if( pSavepoint ){
-    u32 ii;            /* Loop counter */
-    i64 offset = (i64)pSavepoint->iSubRec*(4+pPager->pageSize);
-
-    if( pagerUseWal(pPager) ){
-      rc = tdsqlite3WalSavepointUndo(pPager->pWal, pSavepoint->aWalData);
-    }
-    for(ii=pSavepoint->iSubRec; rc==SQLITE_OK && ii<pPager->nSubRec; ii++){
-      assert( offset==(i64)ii*(4+pPager->pageSize) );
-      rc = pager_playback_one_page(pPager, &offset, pDone, 0, 1);
-    }
-    assert( rc!=SQLITE_DONE );
-  }
-
-  tdsqlite3BitvecDestroy(pDone);
-  if( rc==SQLITE_OK ){
-    pPager->journalOff = szJ;
-  }
-
-  return rc;
-}
-
-/*
-** Change the maximum number of in-memory pages that are allowed
-** before attempting to recycle clean and unused pages.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerSetCachesize(Pager *pPager, int mxPage){
-  tdsqlite3PcacheSetCachesize(pPager->pPCache, mxPage);
-}
-
-/*
-** Change the maximum number of in-memory pages that are allowed
-** before attempting to spill pages to journal.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSetSpillsize(Pager *pPager, int mxPage){
-  return tdsqlite3PcacheSetSpillsize(pPager->pPCache, mxPage);
-}
-
-/*
-** Invoke SQLITE_FCNTL_MMAP_SIZE based on the current value of szMmap.
-*/
-static void pagerFixMaplimit(Pager *pPager){
-#if SQLITE_MAX_MMAP_SIZE>0
-  tdsqlite3_file *fd = pPager->fd;
-  if( isOpen(fd) && fd->pMethods->iVersion>=3 ){
-    tdsqlite3_int64 sz;
-    sz = pPager->szMmap;
-    pPager->bUseFetch = (sz>0);
-    setGetterMethod(pPager);
-    tdsqlite3OsFileControlHint(pPager->fd, SQLITE_FCNTL_MMAP_SIZE, &sz);
-  }
-#endif
-}
-
-/*
-** Change the maximum size of any memory mapping made of the database file.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerSetMmapLimit(Pager *pPager, tdsqlite3_int64 szMmap){
-  pPager->szMmap = szMmap;
-  pagerFixMaplimit(pPager);
-}
-
-/*
-** Free as much memory as possible from the pager.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerShrink(Pager *pPager){
-  tdsqlite3PcacheShrink(pPager->pPCache);
-}
-
-/*
-** Adjust settings of the pager to those specified in the pgFlags parameter.
-**
-** The "level" in pgFlags & PAGER_SYNCHRONOUS_MASK sets the robustness
-** of the database to damage due to OS crashes or power failures by
-** changing the number of syncs()s when writing the journals.
-** There are four levels:
-**
-**    OFF       tdsqlite3OsSync() is never called.  This is the default
-**              for temporary and transient files.
-**
-**    NORMAL    The journal is synced once before writes begin on the
-**              database.  This is normally adequate protection, but
-**              it is theoretically possible, though very unlikely,
-**              that an inopertune power failure could leave the journal
-**              in a state which would cause damage to the database
-**              when it is rolled back.
-**
-**    FULL      The journal is synced twice before writes begin on the
-**              database (with some additional information - the nRec field
-**              of the journal header - being written in between the two
-**              syncs).  If we assume that writing a
-**              single disk sector is atomic, then this mode provides
-**              assurance that the journal will not be corrupted to the
-**              point of causing damage to the database during rollback.
-**
-**    EXTRA     This is like FULL except that is also syncs the directory
-**              that contains the rollback journal after the rollback
-**              journal is unlinked.
-**
-** The above is for a rollback-journal mode.  For WAL mode, OFF continues
-** to mean that no syncs ever occur.  NORMAL means that the WAL is synced
-** prior to the start of checkpoint and that the database file is synced
-** at the conclusion of the checkpoint if the entire content of the WAL
-** was written back into the database.  But no sync operations occur for
-** an ordinary commit in NORMAL mode with WAL.  FULL means that the WAL
-** file is synced following each commit operation, in addition to the
-** syncs associated with NORMAL.  There is no difference between FULL
-** and EXTRA for WAL mode.
-**
-** Do not confuse synchronous=FULL with SQLITE_SYNC_FULL.  The
-** SQLITE_SYNC_FULL macro means to use the MacOSX-style full-fsync
-** using fcntl(F_FULLFSYNC).  SQLITE_SYNC_NORMAL means to do an
-** ordinary fsync() call.  There is no difference between SQLITE_SYNC_FULL
-** and SQLITE_SYNC_NORMAL on platforms other than MacOSX.  But the
-** synchronous=FULL versus synchronous=NORMAL setting determines when
-** the xSync primitive is called and is relevant to all platforms.
-**
-** Numeric values associated with these states are OFF==1, NORMAL=2,
-** and FULL=3.
-*/
-#ifndef SQLITE_OMIT_PAGER_PRAGMAS
-SQLITE_PRIVATE void tdsqlite3PagerSetFlags(
-  Pager *pPager,        /* The pager to set safety level for */
-  unsigned pgFlags      /* Various flags */
-){
-  unsigned level = pgFlags & PAGER_SYNCHRONOUS_MASK;
-  if( pPager->tempFile ){
-    pPager->noSync = 1;
-    pPager->fullSync = 0;
-    pPager->extraSync = 0;
-  }else{
-    pPager->noSync =  level==PAGER_SYNCHRONOUS_OFF ?1:0;
-    pPager->fullSync = level>=PAGER_SYNCHRONOUS_FULL ?1:0;
-    pPager->extraSync = level==PAGER_SYNCHRONOUS_EXTRA ?1:0;
-  }
-  if( pPager->noSync ){
-    pPager->syncFlags = 0;
-  }else if( pgFlags & PAGER_FULLFSYNC ){
-    pPager->syncFlags = SQLITE_SYNC_FULL;
-  }else{
-    pPager->syncFlags = SQLITE_SYNC_NORMAL;
-  }
-  pPager->walSyncFlags = (pPager->syncFlags<<2);
-  if( pPager->fullSync ){
-    pPager->walSyncFlags |= pPager->syncFlags;
-  }
-  if( (pgFlags & PAGER_CKPT_FULLFSYNC) && !pPager->noSync ){
-    pPager->walSyncFlags |= (SQLITE_SYNC_FULL<<2);
-  }
-  if( pgFlags & PAGER_CACHESPILL ){
-    pPager->doNotSpill &= ~SPILLFLAG_OFF;
-  }else{
-    pPager->doNotSpill |= SPILLFLAG_OFF;
-  }
-}
-#endif
-
-/*
-** The following global variable is incremented whenever the library
-** attempts to open a temporary file.  This information is used for
-** testing and analysis only.  
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_opentemp_count = 0;
-#endif
-
-/*
-** Open a temporary file.
-**
-** Write the file descriptor into *pFile. Return SQLITE_OK on success 
-** or some other error code if we fail. The OS will automatically 
-** delete the temporary file when it is closed.
-**
-** The flags passed to the VFS layer xOpen() call are those specified
-** by parameter vfsFlags ORed with the following:
-**
-**     SQLITE_OPEN_READWRITE
-**     SQLITE_OPEN_CREATE
-**     SQLITE_OPEN_EXCLUSIVE
-**     SQLITE_OPEN_DELETEONCLOSE
-*/
-static int pagerOpentemp(
-  Pager *pPager,        /* The pager object */
-  tdsqlite3_file *pFile,  /* Write the file descriptor here */
-  int vfsFlags          /* Flags passed through to the VFS */
-){
-  int rc;               /* Return code */
-
-#ifdef SQLITE_TEST
-  tdsqlite3_opentemp_count++;  /* Used for testing and analysis only */
-#endif
-
-  vfsFlags |=  SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE |
-            SQLITE_OPEN_EXCLUSIVE | SQLITE_OPEN_DELETEONCLOSE;
-  rc = tdsqlite3OsOpen(pPager->pVfs, 0, pFile, vfsFlags, 0);
-  assert( rc!=SQLITE_OK || isOpen(pFile) );
-  return rc;
-}
-
-/*
-** Set the busy handler function.
-**
-** The pager invokes the busy-handler if tdsqlite3OsLock() returns 
-** SQLITE_BUSY when trying to upgrade from no-lock to a SHARED lock,
-** or when trying to upgrade from a RESERVED lock to an EXCLUSIVE 
-** lock. It does *not* invoke the busy handler when upgrading from
-** SHARED to RESERVED, or when upgrading from SHARED to EXCLUSIVE
-** (which occurs during hot-journal rollback). Summary:
-**
-**   Transition                        | Invokes xBusyHandler
-**   --------------------------------------------------------
-**   NO_LOCK       -> SHARED_LOCK      | Yes
-**   SHARED_LOCK   -> RESERVED_LOCK    | No
-**   SHARED_LOCK   -> EXCLUSIVE_LOCK   | No
-**   RESERVED_LOCK -> EXCLUSIVE_LOCK   | Yes
-**
-** If the busy-handler callback returns non-zero, the lock is 
-** retried. If it returns zero, then the SQLITE_BUSY error is
-** returned to the caller of the pager API function.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerSetBusyHandler(
-  Pager *pPager,                       /* Pager object */
-  int (*xBusyHandler)(void *),         /* Pointer to busy-handler function */
-  void *pBusyHandlerArg                /* Argument to pass to xBusyHandler */
-){
-  void **ap;
-  pPager->xBusyHandler = xBusyHandler;
-  pPager->pBusyHandlerArg = pBusyHandlerArg;
-  ap = (void **)&pPager->xBusyHandler;
-  assert( ((int(*)(void *))(ap[0]))==xBusyHandler );
-  assert( ap[1]==pBusyHandlerArg );
-  tdsqlite3OsFileControlHint(pPager->fd, SQLITE_FCNTL_BUSYHANDLER, (void *)ap);
-}
-
-/*
-** Change the page size used by the Pager object. The new page size 
-** is passed in *pPageSize.
-**
-** If the pager is in the error state when this function is called, it
-** is a no-op. The value returned is the error state error code (i.e. 
-** one of SQLITE_IOERR, an SQLITE_IOERR_xxx sub-code or SQLITE_FULL).
-**
-** Otherwise, if all of the following are true:
-**
-**   * the new page size (value of *pPageSize) is valid (a power 
-**     of two between 512 and SQLITE_MAX_PAGE_SIZE, inclusive), and
-**
-**   * there are no outstanding page references, and
-**
-**   * the database is either not an in-memory database or it is
-**     an in-memory database that currently consists of zero pages.
-**
-** then the pager object page size is set to *pPageSize.
-**
-** If the page size is changed, then this function uses tdsqlite3PagerMalloc() 
-** to obtain a new Pager.pTmpSpace buffer. If this allocation attempt 
-** fails, SQLITE_NOMEM is returned and the page size remains unchanged. 
-** In all other cases, SQLITE_OK is returned.
-**
-** If the page size is not changed, either because one of the enumerated
-** conditions above is not true, the pager was in error state when this
-** function was called, or because the memory allocation attempt failed, 
-** then *pPageSize is set to the old, retained page size before returning.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSetPagesize(Pager *pPager, u32 *pPageSize, int nReserve){
-  int rc = SQLITE_OK;
-
-  /* It is not possible to do a full assert_pager_state() here, as this
-  ** function may be called from within PagerOpen(), before the state
-  ** of the Pager object is internally consistent.
-  **
-  ** At one point this function returned an error if the pager was in 
-  ** PAGER_ERROR state. But since PAGER_ERROR state guarantees that
-  ** there is at least one outstanding page reference, this function
-  ** is a no-op for that case anyhow.
-  */
-
-  u32 pageSize = *pPageSize;
-  assert( pageSize==0 || (pageSize>=512 && pageSize<=SQLITE_MAX_PAGE_SIZE) );
-  if( (pPager->memDb==0 || pPager->dbSize==0)
-   && tdsqlite3PcacheRefCount(pPager->pPCache)==0 
-   && pageSize && pageSize!=(u32)pPager->pageSize 
-  ){
-    char *pNew = NULL;             /* New temp space */
-    i64 nByte = 0;
-
-    if( pPager->eState>PAGER_OPEN && isOpen(pPager->fd) ){
-      rc = tdsqlite3OsFileSize(pPager->fd, &nByte);
-    }
-    if( rc==SQLITE_OK ){
-      /* 8 bytes of zeroed overrun space is sufficient so that the b-tree
-      * cell header parser will never run off the end of the allocation */
-      pNew = (char *)tdsqlite3PageMalloc(pageSize+8);
-      if( !pNew ){
-        rc = SQLITE_NOMEM_BKPT;
-      }else{
-        memset(pNew+pageSize, 0, 8);
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      pager_reset(pPager);
-      rc = tdsqlite3PcacheSetPageSize(pPager->pPCache, pageSize);
-    }
-    if( rc==SQLITE_OK ){
-      tdsqlite3PageFree(pPager->pTmpSpace);
-      pPager->pTmpSpace = pNew;
-      pPager->dbSize = (Pgno)((nByte+pageSize-1)/pageSize);
-      pPager->pageSize = pageSize;
-    }else{
-      tdsqlite3PageFree(pNew);
-    }
-  }
-
-  *pPageSize = pPager->pageSize;
-  if( rc==SQLITE_OK ){
-    if( nReserve<0 ) nReserve = pPager->nReserve;
-    assert( nReserve>=0 && nReserve<1000 );
-    pPager->nReserve = (i16)nReserve;
-    pagerReportSize(pPager);
-    pagerFixMaplimit(pPager);
-  }
-  return rc;
-}
-
-/*
-** Return a pointer to the "temporary page" buffer held internally
-** by the pager.  This is a buffer that is big enough to hold the
-** entire content of a database page.  This buffer is used internally
-** during rollback and will be overwritten whenever a rollback
-** occurs.  But other modules are free to use it too, as long as
-** no rollbacks are happening.
-*/
-SQLITE_PRIVATE void *tdsqlite3PagerTempSpace(Pager *pPager){
-  return pPager->pTmpSpace;
-}
-
-/*
-** Attempt to set the maximum database page count if mxPage is positive. 
-** Make no changes if mxPage is zero or negative.  And never reduce the
-** maximum page count below the current size of the database.
-**
-** Regardless of mxPage, return the current maximum page count.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerMaxPageCount(Pager *pPager, int mxPage){
-  if( mxPage>0 ){
-    pPager->mxPgno = mxPage;
-  }
-  assert( pPager->eState!=PAGER_OPEN );      /* Called only by OP_MaxPgcnt */
-  /* assert( pPager->mxPgno>=pPager->dbSize ); */
-  /* OP_MaxPgcnt ensures that the parameter passed to this function is not
-  ** less than the total number of valid pages in the database. But this
-  ** may be less than Pager.dbSize, and so the assert() above is not valid */
-  return pPager->mxPgno;
-}
-
-/*
-** The following set of routines are used to disable the simulated
-** I/O error mechanism.  These routines are used to avoid simulated
-** errors in places where we do not care about errors.
-**
-** Unless -DSQLITE_TEST=1 is used, these routines are all no-ops
-** and generate no code.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API extern int tdsqlite3_io_error_pending;
-SQLITE_API extern int tdsqlite3_io_error_hit;
-static int saved_cnt;
-void disable_simulated_io_errors(void){
-  saved_cnt = tdsqlite3_io_error_pending;
-  tdsqlite3_io_error_pending = -1;
-}
-void enable_simulated_io_errors(void){
-  tdsqlite3_io_error_pending = saved_cnt;
-}
-#else
-# define disable_simulated_io_errors()
-# define enable_simulated_io_errors()
-#endif
-
-/*
-** Read the first N bytes from the beginning of the file into memory
-** that pDest points to. 
-**
-** If the pager was opened on a transient file (zFilename==""), or
-** opened on a file less than N bytes in size, the output buffer is
-** zeroed and SQLITE_OK returned. The rationale for this is that this 
-** function is used to read database headers, and a new transient or
-** zero sized database has a header than consists entirely of zeroes.
-**
-** If any IO error apart from SQLITE_IOERR_SHORT_READ is encountered,
-** the error code is returned to the caller and the contents of the
-** output buffer undefined.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerReadFileheader(Pager *pPager, int N, unsigned char *pDest){
-  int rc = SQLITE_OK;
-  memset(pDest, 0, N);
-  assert( isOpen(pPager->fd) || pPager->tempFile );
-
-  /* This routine is only called by btree immediately after creating
-  ** the Pager object.  There has not been an opportunity to transition
-  ** to WAL mode yet.
-  */
-  assert( !pagerUseWal(pPager) );
-
-  if( isOpen(pPager->fd) ){
-    IOTRACE(("DBHDR %p 0 %d\n", pPager, N))
-    rc = tdsqlite3OsRead(pPager->fd, pDest, N, 0);
-    if( rc==SQLITE_IOERR_SHORT_READ ){
-      rc = SQLITE_OK;
-    }
-  }
-  return rc;
-}
-
-/*
-** This function may only be called when a read-transaction is open on
-** the pager. It returns the total number of pages in the database.
-**
-** However, if the file is between 1 and <page-size> bytes in size, then 
-** this is considered a 1 page file.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerPagecount(Pager *pPager, int *pnPage){
-  assert( pPager->eState>=PAGER_READER );
-  assert( pPager->eState!=PAGER_WRITER_FINISHED );
-  *pnPage = (int)pPager->dbSize;
-}
-
-
-/*
-** Try to obtain a lock of type locktype on the database file. If
-** a similar or greater lock is already held, this function is a no-op
-** (returning SQLITE_OK immediately).
-**
-** Otherwise, attempt to obtain the lock using tdsqlite3OsLock(). Invoke 
-** the busy callback if the lock is currently not available. Repeat 
-** until the busy callback returns false or until the attempt to 
-** obtain the lock succeeds.
-**
-** Return SQLITE_OK on success and an error code if we cannot obtain
-** the lock. If the lock is obtained successfully, set the Pager.state 
-** variable to locktype before returning.
-*/
-static int pager_wait_on_lock(Pager *pPager, int locktype){
-  int rc;                              /* Return code */
-
-  /* Check that this is either a no-op (because the requested lock is 
-  ** already held), or one of the transitions that the busy-handler
-  ** may be invoked during, according to the comment above
-  ** tdsqlite3PagerSetBusyhandler().
-  */
-  assert( (pPager->eLock>=locktype)
-       || (pPager->eLock==NO_LOCK && locktype==SHARED_LOCK)
-       || (pPager->eLock==RESERVED_LOCK && locktype==EXCLUSIVE_LOCK)
-  );
-
-  do {
-    rc = pagerLockDb(pPager, locktype);
-  }while( rc==SQLITE_BUSY && pPager->xBusyHandler(pPager->pBusyHandlerArg) );
-  return rc;
-}
-
-/*
-** Function assertTruncateConstraint(pPager) checks that one of the 
-** following is true for all dirty pages currently in the page-cache:
-**
-**   a) The page number is less than or equal to the size of the 
-**      current database image, in pages, OR
-**
-**   b) if the page content were written at this time, it would not
-**      be necessary to write the current content out to the sub-journal
-**      (as determined by function subjRequiresPage()).
-**
-** If the condition asserted by this function were not true, and the
-** dirty page were to be discarded from the cache via the pagerStress()
-** routine, pagerStress() would not write the current page content to
-** the database file. If a savepoint transaction were rolled back after
-** this happened, the correct behavior would be to restore the current
-** content of the page. However, since this content is not present in either
-** the database file or the portion of the rollback journal and 
-** sub-journal rolled back the content could not be restored and the
-** database image would become corrupt. It is therefore fortunate that 
-** this circumstance cannot arise.
-*/
-#if defined(SQLITE_DEBUG)
-static void assertTruncateConstraintCb(PgHdr *pPg){
-  assert( pPg->flags&PGHDR_DIRTY );
-  assert( !subjRequiresPage(pPg) || pPg->pgno<=pPg->pPager->dbSize );
-}
-static void assertTruncateConstraint(Pager *pPager){
-  tdsqlite3PcacheIterateDirty(pPager->pPCache, assertTruncateConstraintCb);
-}
-#else
-# define assertTruncateConstraint(pPager)
-#endif
-
-/*
-** Truncate the in-memory database file image to nPage pages. This 
-** function does not actually modify the database file on disk. It 
-** just sets the internal state of the pager object so that the 
-** truncation will be done when the current transaction is committed.
-**
-** This function is only called right before committing a transaction.
-** Once this function has been called, the transaction must either be
-** rolled back or committed. It is not safe to call this function and
-** then continue writing to the database.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerTruncateImage(Pager *pPager, Pgno nPage){
-  assert( pPager->dbSize>=nPage );
-  assert( pPager->eState>=PAGER_WRITER_CACHEMOD );
-  pPager->dbSize = nPage;
-
-  /* At one point the code here called assertTruncateConstraint() to
-  ** ensure that all pages being truncated away by this operation are,
-  ** if one or more savepoints are open, present in the savepoint 
-  ** journal so that they can be restored if the savepoint is rolled
-  ** back. This is no longer necessary as this function is now only
-  ** called right before committing a transaction. So although the 
-  ** Pager object may still have open savepoints (Pager.nSavepoint!=0), 
-  ** they cannot be rolled back. So the assertTruncateConstraint() call
-  ** is no longer correct. */
-}
-
-
-/*
-** This function is called before attempting a hot-journal rollback. It
-** syncs the journal file to disk, then sets pPager->journalHdr to the
-** size of the journal file so that the pager_playback() routine knows
-** that the entire journal file has been synced.
-**
-** Syncing a hot-journal to disk before attempting to roll it back ensures 
-** that if a power-failure occurs during the rollback, the process that
-** attempts rollback following system recovery sees the same journal
-** content as this process.
-**
-** If everything goes as planned, SQLITE_OK is returned. Otherwise, 
-** an SQLite error code.
-*/
-static int pagerSyncHotJournal(Pager *pPager){
-  int rc = SQLITE_OK;
-  if( !pPager->noSync ){
-    rc = tdsqlite3OsSync(pPager->jfd, SQLITE_SYNC_NORMAL);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3OsFileSize(pPager->jfd, &pPager->journalHdr);
-  }
-  return rc;
-}
-
-#if SQLITE_MAX_MMAP_SIZE>0
-/*
-** Obtain a reference to a memory mapped page object for page number pgno. 
-** The new object will use the pointer pData, obtained from xFetch().
-** If successful, set *ppPage to point to the new page reference
-** and return SQLITE_OK. Otherwise, return an SQLite error code and set
-** *ppPage to zero.
-**
-** Page references obtained by calling this function should be released
-** by calling pagerReleaseMapPage().
-*/
-static int pagerAcquireMapPage(
-  Pager *pPager,                  /* Pager object */
-  Pgno pgno,                      /* Page number */
-  void *pData,                    /* xFetch()'d data for this page */
-  PgHdr **ppPage                  /* OUT: Acquired page object */
-){
-  PgHdr *p;                       /* Memory mapped page to return */
-  
-  if( pPager->pMmapFreelist ){
-    *ppPage = p = pPager->pMmapFreelist;
-    pPager->pMmapFreelist = p->pDirty;
-    p->pDirty = 0;
-    assert( pPager->nExtra>=8 );
-    memset(p->pExtra, 0, 8);
-  }else{
-    *ppPage = p = (PgHdr *)tdsqlite3MallocZero(sizeof(PgHdr) + pPager->nExtra);
-    if( p==0 ){
-      tdsqlite3OsUnfetch(pPager->fd, (i64)(pgno-1) * pPager->pageSize, pData);
-      return SQLITE_NOMEM_BKPT;
-    }
-    p->pExtra = (void *)&p[1];
-    p->flags = PGHDR_MMAP;
-    p->nRef = 1;
-    p->pPager = pPager;
-  }
-
-  assert( p->pExtra==(void *)&p[1] );
-  assert( p->pPage==0 );
-  assert( p->flags==PGHDR_MMAP );
-  assert( p->pPager==pPager );
-  assert( p->nRef==1 );
-
-  p->pgno = pgno;
-  p->pData = pData;
-  pPager->nMmapOut++;
-
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** Release a reference to page pPg. pPg must have been returned by an 
-** earlier call to pagerAcquireMapPage().
-*/
-static void pagerReleaseMapPage(PgHdr *pPg){
-  Pager *pPager = pPg->pPager;
-  pPager->nMmapOut--;
-  pPg->pDirty = pPager->pMmapFreelist;
-  pPager->pMmapFreelist = pPg;
-
-  assert( pPager->fd->pMethods->iVersion>=3 );
-  tdsqlite3OsUnfetch(pPager->fd, (i64)(pPg->pgno-1)*pPager->pageSize, pPg->pData);
-}
-
-/*
-** Free all PgHdr objects stored in the Pager.pMmapFreelist list.
-*/
-static void pagerFreeMapHdrs(Pager *pPager){
-  PgHdr *p;
-  PgHdr *pNext;
-  for(p=pPager->pMmapFreelist; p; p=pNext){
-    pNext = p->pDirty;
-    tdsqlite3_free(p);
-  }
-}
-
-/* Verify that the database file has not be deleted or renamed out from
-** under the pager.  Return SQLITE_OK if the database is still where it ought
-** to be on disk.  Return non-zero (SQLITE_READONLY_DBMOVED or some other error
-** code from tdsqlite3OsAccess()) if the database has gone missing.
-*/
-static int databaseIsUnmoved(Pager *pPager){
-  int bHasMoved = 0;
-  int rc;
-
-  if( pPager->tempFile ) return SQLITE_OK;
-  if( pPager->dbSize==0 ) return SQLITE_OK;
-  assert( pPager->zFilename && pPager->zFilename[0] );
-  rc = tdsqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_HAS_MOVED, &bHasMoved);
-  if( rc==SQLITE_NOTFOUND ){
-    /* If the HAS_MOVED file-control is unimplemented, assume that the file
-    ** has not been moved.  That is the historical behavior of SQLite: prior to
-    ** version 3.8.3, it never checked */
-    rc = SQLITE_OK;
-  }else if( rc==SQLITE_OK && bHasMoved ){
-    rc = SQLITE_READONLY_DBMOVED;
-  }
-  return rc;
-}
-
-
-/*
-** Shutdown the page cache.  Free all memory and close all files.
-**
-** If a transaction was in progress when this routine is called, that
-** transaction is rolled back.  All outstanding pages are invalidated
-** and their memory is freed.  Any attempt to use a page associated
-** with this page cache after this function returns will likely
-** result in a coredump.
-**
-** This function always succeeds. If a transaction is active an attempt
-** is made to roll it back. If an error occurs during the rollback 
-** a hot journal may be left in the filesystem but no error is returned
-** to the caller.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerClose(Pager *pPager, tdsqlite3 *db){
-  u8 *pTmp = (u8*)pPager->pTmpSpace;
-  assert( db || pagerUseWal(pPager)==0 );
-  assert( assert_pager_state(pPager) );
-  disable_simulated_io_errors();
-  tdsqlite3BeginBenignMalloc();
-  pagerFreeMapHdrs(pPager);
-  /* pPager->errCode = 0; */
-  pPager->exclusiveMode = 0;
-#ifndef SQLITE_OMIT_WAL
-  {
-    u8 *a = 0;
-    assert( db || pPager->pWal==0 );
-    if( db && 0==(db->flags & SQLITE_NoCkptOnClose) 
-     && SQLITE_OK==databaseIsUnmoved(pPager)
-    ){
-      a = pTmp;
-    }
-    tdsqlite3WalClose(pPager->pWal, db, pPager->walSyncFlags, pPager->pageSize,a);
-    pPager->pWal = 0;
-  }
-#endif
-  pager_reset(pPager);
-  if( MEMDB ){
-    pager_unlock(pPager);
-  }else{
-    /* If it is open, sync the journal file before calling UnlockAndRollback.
-    ** If this is not done, then an unsynced portion of the open journal 
-    ** file may be played back into the database. If a power failure occurs 
-    ** while this is happening, the database could become corrupt.
-    **
-    ** If an error occurs while trying to sync the journal, shift the pager
-    ** into the ERROR state. This causes UnlockAndRollback to unlock the
-    ** database and close the journal file without attempting to roll it
-    ** back or finalize it. The next database user will have to do hot-journal
-    ** rollback before accessing the database file.
-    */
-    if( isOpen(pPager->jfd) ){
-      pager_error(pPager, pagerSyncHotJournal(pPager));
-    }
-    pagerUnlockAndRollback(pPager);
-  }
-  tdsqlite3EndBenignMalloc();
-  enable_simulated_io_errors();
-  PAGERTRACE(("CLOSE %d\n", PAGERID(pPager)));
-  IOTRACE(("CLOSE %p\n", pPager))
-  tdsqlite3OsClose(pPager->jfd);
-  tdsqlite3OsClose(pPager->fd);
-  tdsqlite3PageFree(pTmp);
-  tdsqlite3PcacheClose(pPager->pPCache);
-
-#ifdef SQLITE_HAS_CODEC
-  if( pPager->xCodecFree ) pPager->xCodecFree(pPager->pCodec);
-#endif
-
-  assert( !pPager->aSavepoint && !pPager->pInJournal );
-  assert( !isOpen(pPager->jfd) && !isOpen(pPager->sjfd) );
-
-  tdsqlite3_free(pPager);
-  return SQLITE_OK;
-}
-
-#if !defined(NDEBUG) || defined(SQLITE_TEST)
-/*
-** Return the page number for page pPg.
-*/
-SQLITE_PRIVATE Pgno tdsqlite3PagerPagenumber(DbPage *pPg){
-  return pPg->pgno;
-}
-#endif
-
-/*
-** Increment the reference count for page pPg.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerRef(DbPage *pPg){
-  tdsqlite3PcacheRef(pPg);
-}
-
-/*
-** Sync the journal. In other words, make sure all the pages that have
-** been written to the journal have actually reached the surface of the
-** disk and can be restored in the event of a hot-journal rollback.
-**
-** If the Pager.noSync flag is set, then this function is a no-op.
-** Otherwise, the actions required depend on the journal-mode and the 
-** device characteristics of the file-system, as follows:
-**
-**   * If the journal file is an in-memory journal file, no action need
-**     be taken.
-**
-**   * Otherwise, if the device does not support the SAFE_APPEND property,
-**     then the nRec field of the most recently written journal header
-**     is updated to contain the number of journal records that have
-**     been written following it. If the pager is operating in full-sync
-**     mode, then the journal file is synced before this field is updated.
-**
-**   * If the device does not support the SEQUENTIAL property, then 
-**     journal file is synced.
-**
-** Or, in pseudo-code:
-**
-**   if( NOT <in-memory journal> ){
-**     if( NOT SAFE_APPEND ){
-**       if( <full-sync mode> ) xSync(<journal file>);
-**       <update nRec field>
-**     } 
-**     if( NOT SEQUENTIAL ) xSync(<journal file>);
-**   }
-**
-** If successful, this routine clears the PGHDR_NEED_SYNC flag of every 
-** page currently held in memory before returning SQLITE_OK. If an IO
-** error is encountered, then the IO error code is returned to the caller.
-*/
-static int syncJournal(Pager *pPager, int newHdr){
-  int rc;                         /* Return code */
-
-  assert( pPager->eState==PAGER_WRITER_CACHEMOD
-       || pPager->eState==PAGER_WRITER_DBMOD
-  );
-  assert( assert_pager_state(pPager) );
-  assert( !pagerUseWal(pPager) );
-
-  rc = tdsqlite3PagerExclusiveLock(pPager);
-  if( rc!=SQLITE_OK ) return rc;
-
-  if( !pPager->noSync ){
-    assert( !pPager->tempFile );
-    if( isOpen(pPager->jfd) && pPager->journalMode!=PAGER_JOURNALMODE_MEMORY ){
-      const int iDc = tdsqlite3OsDeviceCharacteristics(pPager->fd);
-      assert( isOpen(pPager->jfd) );
-
-      if( 0==(iDc&SQLITE_IOCAP_SAFE_APPEND) ){
-        /* This block deals with an obscure problem. If the last connection
-        ** that wrote to this database was operating in persistent-journal
-        ** mode, then the journal file may at this point actually be larger
-        ** than Pager.journalOff bytes. If the next thing in the journal
-        ** file happens to be a journal-header (written as part of the
-        ** previous connection's transaction), and a crash or power-failure 
-        ** occurs after nRec is updated but before this connection writes 
-        ** anything else to the journal file (or commits/rolls back its 
-        ** transaction), then SQLite may become confused when doing the 
-        ** hot-journal rollback following recovery. It may roll back all
-        ** of this connections data, then proceed to rolling back the old,
-        ** out-of-date data that follows it. Database corruption.
-        **
-        ** To work around this, if the journal file does appear to contain
-        ** a valid header following Pager.journalOff, then write a 0x00
-        ** byte to the start of it to prevent it from being recognized.
-        **
-        ** Variable iNextHdrOffset is set to the offset at which this
-        ** problematic header will occur, if it exists. aMagic is used 
-        ** as a temporary buffer to inspect the first couple of bytes of
-        ** the potential journal header.
-        */
-        i64 iNextHdrOffset;
-        u8 aMagic[8];
-        u8 zHeader[sizeof(aJournalMagic)+4];
-
-        memcpy(zHeader, aJournalMagic, sizeof(aJournalMagic));
-        put32bits(&zHeader[sizeof(aJournalMagic)], pPager->nRec);
-
-        iNextHdrOffset = journalHdrOffset(pPager);
-        rc = tdsqlite3OsRead(pPager->jfd, aMagic, 8, iNextHdrOffset);
-        if( rc==SQLITE_OK && 0==memcmp(aMagic, aJournalMagic, 8) ){
-          static const u8 zerobyte = 0;
-          rc = tdsqlite3OsWrite(pPager->jfd, &zerobyte, 1, iNextHdrOffset);
-        }
-        if( rc!=SQLITE_OK && rc!=SQLITE_IOERR_SHORT_READ ){
-          return rc;
-        }
-
-        /* Write the nRec value into the journal file header. If in
-        ** full-synchronous mode, sync the journal first. This ensures that
-        ** all data has really hit the disk before nRec is updated to mark
-        ** it as a candidate for rollback.
-        **
-        ** This is not required if the persistent media supports the
-        ** SAFE_APPEND property. Because in this case it is not possible 
-        ** for garbage data to be appended to the file, the nRec field
-        ** is populated with 0xFFFFFFFF when the journal header is written
-        ** and never needs to be updated.
-        */
-        if( pPager->fullSync && 0==(iDc&SQLITE_IOCAP_SEQUENTIAL) ){
-          PAGERTRACE(("SYNC journal of %d\n", PAGERID(pPager)));
-          IOTRACE(("JSYNC %p\n", pPager))
-          rc = tdsqlite3OsSync(pPager->jfd, pPager->syncFlags);
-          if( rc!=SQLITE_OK ) return rc;
-        }
-        IOTRACE(("JHDR %p %lld\n", pPager, pPager->journalHdr));
-        rc = tdsqlite3OsWrite(
-            pPager->jfd, zHeader, sizeof(zHeader), pPager->journalHdr
-        );
-        if( rc!=SQLITE_OK ) return rc;
-      }
-      if( 0==(iDc&SQLITE_IOCAP_SEQUENTIAL) ){
-        PAGERTRACE(("SYNC journal of %d\n", PAGERID(pPager)));
-        IOTRACE(("JSYNC %p\n", pPager))
-        rc = tdsqlite3OsSync(pPager->jfd, pPager->syncFlags| 
-          (pPager->syncFlags==SQLITE_SYNC_FULL?SQLITE_SYNC_DATAONLY:0)
-        );
-        if( rc!=SQLITE_OK ) return rc;
-      }
-
-      pPager->journalHdr = pPager->journalOff;
-      if( newHdr && 0==(iDc&SQLITE_IOCAP_SAFE_APPEND) ){
-        pPager->nRec = 0;
-        rc = writeJournalHdr(pPager);
-        if( rc!=SQLITE_OK ) return rc;
-      }
-    }else{
-      pPager->journalHdr = pPager->journalOff;
-    }
-  }
-
-  /* Unless the pager is in noSync mode, the journal file was just 
-  ** successfully synced. Either way, clear the PGHDR_NEED_SYNC flag on 
-  ** all pages.
-  */
-  tdsqlite3PcacheClearSyncFlags(pPager->pPCache);
-  pPager->eState = PAGER_WRITER_DBMOD;
-  assert( assert_pager_state(pPager) );
-  return SQLITE_OK;
-}
-
-/*
-** The argument is the first in a linked list of dirty pages connected
-** by the PgHdr.pDirty pointer. This function writes each one of the
-** in-memory pages in the list to the database file. The argument may
-** be NULL, representing an empty list. In this case this function is
-** a no-op.
-**
-** The pager must hold at least a RESERVED lock when this function
-** is called. Before writing anything to the database file, this lock
-** is upgraded to an EXCLUSIVE lock. If the lock cannot be obtained,
-** SQLITE_BUSY is returned and no data is written to the database file.
-** 
-** If the pager is a temp-file pager and the actual file-system file
-** is not yet open, it is created and opened before any data is 
-** written out.
-**
-** Once the lock has been upgraded and, if necessary, the file opened,
-** the pages are written out to the database file in list order. Writing
-** a page is skipped if it meets either of the following criteria:
-**
-**   * The page number is greater than Pager.dbSize, or
-**   * The PGHDR_DONT_WRITE flag is set on the page.
-**
-** If writing out a page causes the database file to grow, Pager.dbFileSize
-** is updated accordingly. If page 1 is written out, then the value cached
-** in Pager.dbFileVers[] is updated to match the new value stored in
-** the database file.
-**
-** If everything is successful, SQLITE_OK is returned. If an IO error 
-** occurs, an IO error code is returned. Or, if the EXCLUSIVE lock cannot
-** be obtained, SQLITE_BUSY is returned.
-*/
-static int pager_write_pagelist(Pager *pPager, PgHdr *pList){
-  int rc = SQLITE_OK;                  /* Return code */
-
-  /* This function is only called for rollback pagers in WRITER_DBMOD state. */
-  assert( !pagerUseWal(pPager) );
-  assert( pPager->tempFile || pPager->eState==PAGER_WRITER_DBMOD );
-  assert( pPager->eLock==EXCLUSIVE_LOCK );
-  assert( isOpen(pPager->fd) || pList->pDirty==0 );
-
-  /* If the file is a temp-file has not yet been opened, open it now. It
-  ** is not possible for rc to be other than SQLITE_OK if this branch
-  ** is taken, as pager_wait_on_lock() is a no-op for temp-files.
-  */
-  if( !isOpen(pPager->fd) ){
-    assert( pPager->tempFile && rc==SQLITE_OK );
-    rc = pagerOpentemp(pPager, pPager->fd, pPager->vfsFlags);
-  }
-
-  /* Before the first write, give the VFS a hint of what the final
-  ** file size will be.
-  */
-  assert( rc!=SQLITE_OK || isOpen(pPager->fd) );
-  if( rc==SQLITE_OK 
-   && pPager->dbHintSize<pPager->dbSize
-   && (pList->pDirty || pList->pgno>pPager->dbHintSize)
-  ){
-    tdsqlite3_int64 szFile = pPager->pageSize * (tdsqlite3_int64)pPager->dbSize;
-    tdsqlite3OsFileControlHint(pPager->fd, SQLITE_FCNTL_SIZE_HINT, &szFile);
-    pPager->dbHintSize = pPager->dbSize;
-  }
-
-  while( rc==SQLITE_OK && pList ){
-    Pgno pgno = pList->pgno;
-
-    /* If there are dirty pages in the page cache with page numbers greater
-    ** than Pager.dbSize, this means tdsqlite3PagerTruncateImage() was called to
-    ** make the file smaller (presumably by auto-vacuum code). Do not write
-    ** any such pages to the file.
-    **
-    ** Also, do not write out any page that has the PGHDR_DONT_WRITE flag
-    ** set (set by tdsqlite3PagerDontWrite()).
-    */
-    if( pgno<=pPager->dbSize && 0==(pList->flags&PGHDR_DONT_WRITE) ){
-      i64 offset = (pgno-1)*(i64)pPager->pageSize;   /* Offset to write */
-      char *pData;                                   /* Data to write */    
-
-      assert( (pList->flags&PGHDR_NEED_SYNC)==0 );
-      if( pList->pgno==1 ) pager_write_changecounter(pList);
-
-      /* Encode the database */
-      CODEC2(pPager, pList->pData, pgno, 6, return SQLITE_NOMEM_BKPT, pData);
-
-      /* Write out the page data. */
-      rc = tdsqlite3OsWrite(pPager->fd, pData, pPager->pageSize, offset);
-
-      /* If page 1 was just written, update Pager.dbFileVers to match
-      ** the value now stored in the database file. If writing this 
-      ** page caused the database file to grow, update dbFileSize. 
-      */
-      if( pgno==1 ){
-        memcpy(&pPager->dbFileVers, &pData[24], sizeof(pPager->dbFileVers));
-      }
-      if( pgno>pPager->dbFileSize ){
-        pPager->dbFileSize = pgno;
-      }
-      pPager->aStat[PAGER_STAT_WRITE]++;
-
-      /* Update any backup objects copying the contents of this pager. */
-      tdsqlite3BackupUpdate(pPager->pBackup, pgno, (u8*)pList->pData);
-
-      PAGERTRACE(("STORE %d page %d hash(%08x)\n",
-                   PAGERID(pPager), pgno, pager_pagehash(pList)));
-      IOTRACE(("PGOUT %p %d\n", pPager, pgno));
-      PAGER_INCR(tdsqlite3_pager_writedb_count);
-    }else{
-      PAGERTRACE(("NOSTORE %d page %d\n", PAGERID(pPager), pgno));
-    }
-    pager_set_pagehash(pList);
-    pList = pList->pDirty;
-  }
-
-  return rc;
-}
-
-/*
-** Ensure that the sub-journal file is open. If it is already open, this 
-** function is a no-op.
-**
-** SQLITE_OK is returned if everything goes according to plan. An 
-** SQLITE_IOERR_XXX error code is returned if a call to tdsqlite3OsOpen() 
-** fails.
-*/
-static int openSubJournal(Pager *pPager){
-  int rc = SQLITE_OK;
-  if( !isOpen(pPager->sjfd) ){
-    const int flags =  SQLITE_OPEN_SUBJOURNAL | SQLITE_OPEN_READWRITE 
-      | SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE 
-      | SQLITE_OPEN_DELETEONCLOSE;
-    int nStmtSpill = tdsqlite3Config.nStmtSpill;
-    if( pPager->journalMode==PAGER_JOURNALMODE_MEMORY || pPager->subjInMemory ){
-      nStmtSpill = -1;
-    }
-    rc = tdsqlite3JournalOpen(pPager->pVfs, 0, pPager->sjfd, flags, nStmtSpill);
-  }
-  return rc;
-}
-
-/*
-** Append a record of the current state of page pPg to the sub-journal. 
-**
-** If successful, set the bit corresponding to pPg->pgno in the bitvecs
-** for all open savepoints before returning.
-**
-** This function returns SQLITE_OK if everything is successful, an IO
-** error code if the attempt to write to the sub-journal fails, or 
-** SQLITE_NOMEM if a malloc fails while setting a bit in a savepoint
-** bitvec.
-*/
-static int subjournalPage(PgHdr *pPg){
-  int rc = SQLITE_OK;
-  Pager *pPager = pPg->pPager;
-  if( pPager->journalMode!=PAGER_JOURNALMODE_OFF ){
-
-    /* Open the sub-journal, if it has not already been opened */
-    assert( pPager->useJournal );
-    assert( isOpen(pPager->jfd) || pagerUseWal(pPager) );
-    assert( isOpen(pPager->sjfd) || pPager->nSubRec==0 );
-    assert( pagerUseWal(pPager) 
-         || pageInJournal(pPager, pPg) 
-         || pPg->pgno>pPager->dbOrigSize 
-    );
-    rc = openSubJournal(pPager);
-
-    /* If the sub-journal was opened successfully (or was already open),
-    ** write the journal record into the file.  */
-    if( rc==SQLITE_OK ){
-      void *pData = pPg->pData;
-      i64 offset = (i64)pPager->nSubRec*(4+pPager->pageSize);
-      char *pData2;
-
-#if SQLITE_HAS_CODEC   
-      if( !pPager->subjInMemory ){
-        CODEC2(pPager, pData, pPg->pgno, 7, return SQLITE_NOMEM_BKPT, pData2);
-      }else
-#endif
-      pData2 = pData;
-      PAGERTRACE(("STMT-JOURNAL %d page %d\n", PAGERID(pPager), pPg->pgno));
-      rc = write32bits(pPager->sjfd, offset, pPg->pgno);
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3OsWrite(pPager->sjfd, pData2, pPager->pageSize, offset+4);
-      }
-    }
-  }
-  if( rc==SQLITE_OK ){
-    pPager->nSubRec++;
-    assert( pPager->nSavepoint>0 );
-    rc = addToSavepointBitvecs(pPager, pPg->pgno);
-  }
-  return rc;
-}
-static int subjournalPageIfRequired(PgHdr *pPg){
-  if( subjRequiresPage(pPg) ){
-    return subjournalPage(pPg);
-  }else{
-    return SQLITE_OK;
-  }
-}
-
-/*
-** This function is called by the pcache layer when it has reached some
-** soft memory limit. The first argument is a pointer to a Pager object
-** (cast as a void*). The pager is always 'purgeable' (not an in-memory
-** database). The second argument is a reference to a page that is 
-** currently dirty but has no outstanding references. The page
-** is always associated with the Pager object passed as the first 
-** argument.
-**
-** The job of this function is to make pPg clean by writing its contents
-** out to the database file, if possible. This may involve syncing the
-** journal file. 
-**
-** If successful, tdsqlite3PcacheMakeClean() is called on the page and
-** SQLITE_OK returned. If an IO error occurs while trying to make the
-** page clean, the IO error code is returned. If the page cannot be
-** made clean for some other reason, but no error occurs, then SQLITE_OK
-** is returned by tdsqlite3PcacheMakeClean() is not called.
-*/
-static int pagerStress(void *p, PgHdr *pPg){
-  Pager *pPager = (Pager *)p;
-  int rc = SQLITE_OK;
-
-  assert( pPg->pPager==pPager );
-  assert( pPg->flags&PGHDR_DIRTY );
-
-  /* The doNotSpill NOSYNC bit is set during times when doing a sync of
-  ** journal (and adding a new header) is not allowed.  This occurs
-  ** during calls to tdsqlite3PagerWrite() while trying to journal multiple
-  ** pages belonging to the same sector.
-  **
-  ** The doNotSpill ROLLBACK and OFF bits inhibits all cache spilling
-  ** regardless of whether or not a sync is required.  This is set during
-  ** a rollback or by user request, respectively.
-  **
-  ** Spilling is also prohibited when in an error state since that could
-  ** lead to database corruption.   In the current implementation it 
-  ** is impossible for tdsqlite3PcacheFetch() to be called with createFlag==3
-  ** while in the error state, hence it is impossible for this routine to
-  ** be called in the error state.  Nevertheless, we include a NEVER()
-  ** test for the error state as a safeguard against future changes.
-  */
-  if( NEVER(pPager->errCode) ) return SQLITE_OK;
-  testcase( pPager->doNotSpill & SPILLFLAG_ROLLBACK );
-  testcase( pPager->doNotSpill & SPILLFLAG_OFF );
-  testcase( pPager->doNotSpill & SPILLFLAG_NOSYNC );
-  if( pPager->doNotSpill
-   && ((pPager->doNotSpill & (SPILLFLAG_ROLLBACK|SPILLFLAG_OFF))!=0
-      || (pPg->flags & PGHDR_NEED_SYNC)!=0)
-  ){
-    return SQLITE_OK;
-  }
-
-  pPager->aStat[PAGER_STAT_SPILL]++;
-  pPg->pDirty = 0;
-  if( pagerUseWal(pPager) ){
-    /* Write a single frame for this page to the log. */
-    rc = subjournalPageIfRequired(pPg); 
-    if( rc==SQLITE_OK ){
-      rc = pagerWalFrames(pPager, pPg, 0, 0);
-    }
-  }else{
-    
-#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-    if( pPager->tempFile==0 ){
-      rc = tdsqlite3JournalCreate(pPager->jfd);
-      if( rc!=SQLITE_OK ) return pager_error(pPager, rc);
-    }
-#endif
-  
-    /* Sync the journal file if required. */
-    if( pPg->flags&PGHDR_NEED_SYNC 
-     || pPager->eState==PAGER_WRITER_CACHEMOD
-    ){
-      rc = syncJournal(pPager, 1);
-    }
-  
-    /* Write the contents of the page out to the database file. */
-    if( rc==SQLITE_OK ){
-      assert( (pPg->flags&PGHDR_NEED_SYNC)==0 );
-      rc = pager_write_pagelist(pPager, pPg);
-    }
-  }
-
-  /* Mark the page as clean. */
-  if( rc==SQLITE_OK ){
-    PAGERTRACE(("STRESS %d page %d\n", PAGERID(pPager), pPg->pgno));
-    tdsqlite3PcacheMakeClean(pPg);
-  }
-
-  return pager_error(pPager, rc); 
-}
-
-/*
-** Flush all unreferenced dirty pages to disk.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerFlush(Pager *pPager){
-  int rc = pPager->errCode;
-  if( !MEMDB ){
-    PgHdr *pList = tdsqlite3PcacheDirtyList(pPager->pPCache);
-    assert( assert_pager_state(pPager) );
-    while( rc==SQLITE_OK && pList ){
-      PgHdr *pNext = pList->pDirty;
-      if( pList->nRef==0 ){
-        rc = pagerStress((void*)pPager, pList);
-      }
-      pList = pNext;
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Allocate and initialize a new Pager object and put a pointer to it
-** in *ppPager. The pager should eventually be freed by passing it
-** to tdsqlite3PagerClose().
-**
-** The zFilename argument is the path to the database file to open.
-** If zFilename is NULL then a randomly-named temporary file is created
-** and used as the file to be cached. Temporary files are be deleted
-** automatically when they are closed. If zFilename is ":memory:" then 
-** all information is held in cache. It is never written to disk. 
-** This can be used to implement an in-memory database.
-**
-** The nExtra parameter specifies the number of bytes of space allocated
-** along with each page reference. This space is available to the user
-** via the tdsqlite3PagerGetExtra() API.  When a new page is allocated, the
-** first 8 bytes of this space are zeroed but the remainder is uninitialized.
-** (The extra space is used by btree as the MemPage object.)
-**
-** The flags argument is used to specify properties that affect the
-** operation of the pager. It should be passed some bitwise combination
-** of the PAGER_* flags.
-**
-** The vfsFlags parameter is a bitmask to pass to the flags parameter
-** of the xOpen() method of the supplied VFS when opening files. 
-**
-** If the pager object is allocated and the specified file opened 
-** successfully, SQLITE_OK is returned and *ppPager set to point to
-** the new pager object. If an error occurs, *ppPager is set to NULL
-** and error code returned. This function may return SQLITE_NOMEM
-** (tdsqlite3Malloc() is used to allocate memory), SQLITE_CANTOPEN or 
-** various SQLITE_IO_XXX errors.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerOpen(
-  tdsqlite3_vfs *pVfs,       /* The virtual file system to use */
-  Pager **ppPager,         /* OUT: Return the Pager structure here */
-  const char *zFilename,   /* Name of the database file to open */
-  int nExtra,              /* Extra bytes append to each in-memory page */
-  int flags,               /* flags controlling this file */
-  int vfsFlags,            /* flags passed through to tdsqlite3_vfs.xOpen() */
-  void (*xReinit)(DbPage*) /* Function to reinitialize pages */
-){
-  u8 *pPtr;
-  Pager *pPager = 0;       /* Pager object to allocate and return */
-  int rc = SQLITE_OK;      /* Return code */
-  int tempFile = 0;        /* True for temp files (incl. in-memory files) */
-  int memDb = 0;           /* True if this is an in-memory file */
-#ifdef SQLITE_ENABLE_DESERIALIZE
-  int memJM = 0;           /* Memory journal mode */
-#else
-# define memJM 0
-#endif
-  int readOnly = 0;        /* True if this is a read-only file */
-  int journalFileSize;     /* Bytes to allocate for each journal fd */
-  char *zPathname = 0;     /* Full path to database file */
-  int nPathname = 0;       /* Number of bytes in zPathname */
-  int useJournal = (flags & PAGER_OMIT_JOURNAL)==0; /* False to omit journal */
-  int pcacheSize = tdsqlite3PcacheSize();       /* Bytes to allocate for PCache */
-  u32 szPageDflt = SQLITE_DEFAULT_PAGE_SIZE;  /* Default page size */
-  const char *zUri = 0;    /* URI args to copy */
-  int nUriByte = 1;        /* Number of bytes of URI args at *zUri */
-  int nUri = 0;            /* Number of URI parameters */
-
-  /* Figure out how much space is required for each journal file-handle
-  ** (there are two of them, the main journal and the sub-journal).  */
-  journalFileSize = ROUND8(tdsqlite3JournalSize(pVfs));
-
-  /* Set the output variable to NULL in case an error occurs. */
-  *ppPager = 0;
-
-#ifndef SQLITE_OMIT_MEMORYDB
-  if( flags & PAGER_MEMORY ){
-    memDb = 1;
-    if( zFilename && zFilename[0] ){
-      zPathname = tdsqlite3DbStrDup(0, zFilename);
-      if( zPathname==0  ) return SQLITE_NOMEM_BKPT;
-      nPathname = tdsqlite3Strlen30(zPathname);
-      zFilename = 0;
-    }
-  }
-#endif
-
-  /* Compute and store the full pathname in an allocated buffer pointed
-  ** to by zPathname, length nPathname. Or, if this is a temporary file,
-  ** leave both nPathname and zPathname set to 0.
-  */
-  if( zFilename && zFilename[0] ){
-    const char *z;
-    nPathname = pVfs->mxPathname+1;
-    zPathname = tdsqlite3DbMallocRaw(0, nPathname*2);
-    if( zPathname==0 ){
-      return SQLITE_NOMEM_BKPT;
-    }
-    zPathname[0] = 0; /* Make sure initialized even if FullPathname() fails */
-    rc = tdsqlite3OsFullPathname(pVfs, zFilename, nPathname, zPathname);
-    if( rc!=SQLITE_OK ){
-      if( rc==SQLITE_OK_SYMLINK ){
-        if( vfsFlags & SQLITE_OPEN_NOFOLLOW ){
-          rc = SQLITE_CANTOPEN_SYMLINK;
-        }else{
-          rc = SQLITE_OK;
-        }
-      }
-    }
-    nPathname = tdsqlite3Strlen30(zPathname);
-    z = zUri = &zFilename[tdsqlite3Strlen30(zFilename)+1];
-    while( *z ){
-      z += strlen(z)+1;
-      z += strlen(z)+1;
-      nUri++;
-    }
-    nUriByte = (int)(&z[1] - zUri);
-    assert( nUriByte>=1 );
-    if( rc==SQLITE_OK && nPathname+8>pVfs->mxPathname ){
-      /* This branch is taken when the journal path required by
-      ** the database being opened will be more than pVfs->mxPathname
-      ** bytes in length. This means the database cannot be opened,
-      ** as it will not be possible to open the journal file or even
-      ** check for a hot-journal before reading.
-      */
-      rc = SQLITE_CANTOPEN_BKPT;
-    }
-    if( rc!=SQLITE_OK ){
-      tdsqlite3DbFree(0, zPathname);
-      return rc;
-    }
-  }
-
-  /* Allocate memory for the Pager structure, PCache object, the
-  ** three file descriptors, the database file name and the journal 
-  ** file name. The layout in memory is as follows:
-  **
-  **     Pager object                    (sizeof(Pager) bytes)
-  **     PCache object                   (tdsqlite3PcacheSize() bytes)
-  **     Database file handle            (pVfs->szOsFile bytes)
-  **     Sub-journal file handle         (journalFileSize bytes)
-  **     Main journal file handle        (journalFileSize bytes)
-  **     \0\1\0 journal prefix           (3 bytes)
-  **     Journal filename                (nPathname+8+1 bytes)
-  **     \2\0 WAL prefix                 (2 bytes)
-  **     WAL filename                    (nPathname+4+1 bytes)
-  **     \3\0 database prefix            (2 bytes)
-  **     Database file name              (nPathname+1 bytes)
-  **     URI query parameters            (nUriByte bytes)
-  **     \0\0 terminator                 (2 bytes)
-  */
-  pPtr = (u8 *)tdsqlite3MallocZero(
-    ROUND8(sizeof(*pPager)) +            /* Pager structure */
-    ROUND8(pcacheSize) +                 /* PCache object */
-    ROUND8(pVfs->szOsFile) +             /* The main db file */
-    journalFileSize * 2 +                /* The two journal files */
-    3 +                                  /* Journal prefix */
-    nPathname + 8 + 1 +                  /* Journal filename */
-#ifndef SQLITE_OMIT_WAL
-    2 +                                  /* WAL prefix */
-    nPathname + 4 + 1 +                  /* WAL filename */
-#endif
-    2 +                                  /* Database prefix */
-    nPathname + 1 +                      /* database filename */
-    nUriByte +                           /* query parameters */
-    2                                    /* Terminator */
-  );
-  assert( EIGHT_BYTE_ALIGNMENT(SQLITE_INT_TO_PTR(journalFileSize)) );
-  if( !pPtr ){
-    tdsqlite3DbFree(0, zPathname);
-    return SQLITE_NOMEM_BKPT;
-  }
-  pPager = (Pager*)pPtr;                  pPtr += ROUND8(sizeof(*pPager));
-  pPager->pPCache = (PCache*)pPtr;        pPtr += ROUND8(pcacheSize);
-  pPager->fd = (tdsqlite3_file*)pPtr;       pPtr += ROUND8(pVfs->szOsFile);
-  pPager->sjfd = (tdsqlite3_file*)pPtr;     pPtr += journalFileSize;
-  pPager->jfd =  (tdsqlite3_file*)pPtr;     pPtr += journalFileSize;
-  assert( EIGHT_BYTE_ALIGNMENT(pPager->jfd) );
-
-
-  /* Fill in Pager.zJournal */
-  pPtr[1] = '\001';                       pPtr += 3;
-  if( nPathname>0 ){
-    pPager->zJournal = (char*)pPtr;
-    memcpy(pPtr, zPathname, nPathname);   pPtr += nPathname;
-    memcpy(pPtr, "-journal",8);           pPtr += 8 + 1;
-#ifdef SQLITE_ENABLE_8_3_NAMES
-    tdsqlite3FileSuffix3(zFilename,pPager->zJournal);
-    pPtr = (u8*)(pPager->zJournal + tdsqlite3Strlen30(pPager->zJournal)+1);
-#endif
-  }else{
-    pPager->zJournal = 0;
-    pPtr++;
-  }
-
-#ifndef SQLITE_OMIT_WAL
-  /* Fill in Pager.zWal */
-  pPtr[0] = '\002'; pPtr[1] = 0;          pPtr += 2;
-  if( nPathname>0 ){
-    pPager->zWal = (char*)pPtr;
-    memcpy(pPtr, zPathname, nPathname);   pPtr += nPathname;
-    memcpy(pPtr, "-wal", 4);              pPtr += 4 + 1;
-#ifdef SQLITE_ENABLE_8_3_NAMES
-    tdsqlite3FileSuffix3(zFilename, pPager->zWal);
-    pPtr = (u8*)(pPager->zWal + tdsqlite3Strlen30(pPager->zWal)+1);
-#endif
-  }else{
-    pPager->zWal = 0;
-    pPtr++;
-  }
-#endif
-
-  /* Fill in the Pager.zFilename and pPager.zQueryParam fields */
-  pPtr[0] = '\003'; pPtr[1] = 0;          pPtr += 2;
-  pPager->zFilename = (char*)pPtr;
-  if( nPathname>0 ){
-    memcpy(pPtr, zPathname, nPathname);   pPtr += nPathname + 1;
-    if( zUri ){
-      memcpy(pPtr, zUri, nUriByte);    /* pPtr += nUriByte; // not needed */
-    }
-    /* Double-zero terminator implied by the tdsqlite3MallocZero */
-  }
-
-  if( nPathname ) tdsqlite3DbFree(0, zPathname);
-  pPager->pVfs = pVfs;
-  pPager->vfsFlags = vfsFlags;
-
-  /* Open the pager file.
-  */
-  if( zFilename && zFilename[0] ){
-    int fout = 0;                    /* VFS flags returned by xOpen() */
-    rc = tdsqlite3OsOpen(pVfs, pPager->zFilename, pPager->fd, vfsFlags, &fout);
-    assert( !memDb );
-#ifdef SQLITE_ENABLE_DESERIALIZE
-    memJM = (fout&SQLITE_OPEN_MEMORY)!=0;
-#endif
-    readOnly = (fout&SQLITE_OPEN_READONLY)!=0;
-
-    /* If the file was successfully opened for read/write access,
-    ** choose a default page size in case we have to create the
-    ** database file. The default page size is the maximum of:
-    **
-    **    + SQLITE_DEFAULT_PAGE_SIZE,
-    **    + The value returned by tdsqlite3OsSectorSize()
-    **    + The largest page size that can be written atomically.
-    */
-    if( rc==SQLITE_OK ){
-      int iDc = tdsqlite3OsDeviceCharacteristics(pPager->fd);
-      if( !readOnly ){
-        setSectorSize(pPager);
-        assert(SQLITE_DEFAULT_PAGE_SIZE<=SQLITE_MAX_DEFAULT_PAGE_SIZE);
-        if( szPageDflt<pPager->sectorSize ){
-          if( pPager->sectorSize>SQLITE_MAX_DEFAULT_PAGE_SIZE ){
-            szPageDflt = SQLITE_MAX_DEFAULT_PAGE_SIZE;
-          }else{
-            szPageDflt = (u32)pPager->sectorSize;
-          }
-        }
-#ifdef SQLITE_ENABLE_ATOMIC_WRITE
-        {
-          int ii;
-          assert(SQLITE_IOCAP_ATOMIC512==(512>>8));
-          assert(SQLITE_IOCAP_ATOMIC64K==(65536>>8));
-          assert(SQLITE_MAX_DEFAULT_PAGE_SIZE<=65536);
-          for(ii=szPageDflt; ii<=SQLITE_MAX_DEFAULT_PAGE_SIZE; ii=ii*2){
-            if( iDc&(SQLITE_IOCAP_ATOMIC|(ii>>8)) ){
-              szPageDflt = ii;
-            }
-          }
-        }
-#endif
-      }
-      pPager->noLock = tdsqlite3_uri_boolean(pPager->zFilename, "nolock", 0);
-      if( (iDc & SQLITE_IOCAP_IMMUTABLE)!=0
-       || tdsqlite3_uri_boolean(pPager->zFilename, "immutable", 0) ){
-          vfsFlags |= SQLITE_OPEN_READONLY;
-          goto act_like_temp_file;
-      }
-    }
-  }else{
-    /* If a temporary file is requested, it is not opened immediately.
-    ** In this case we accept the default page size and delay actually
-    ** opening the file until the first call to OsWrite().
-    **
-    ** This branch is also run for an in-memory database. An in-memory
-    ** database is the same as a temp-file that is never written out to
-    ** disk and uses an in-memory rollback journal.
-    **
-    ** This branch also runs for files marked as immutable.
-    */ 
-act_like_temp_file:
-    tempFile = 1;
-    pPager->eState = PAGER_READER;     /* Pretend we already have a lock */
-    pPager->eLock = EXCLUSIVE_LOCK;    /* Pretend we are in EXCLUSIVE mode */
-    pPager->noLock = 1;                /* Do no locking */
-    readOnly = (vfsFlags&SQLITE_OPEN_READONLY);
-  }
-
-  /* The following call to PagerSetPagesize() serves to set the value of 
-  ** Pager.pageSize and to allocate the Pager.pTmpSpace buffer.
-  */
-  if( rc==SQLITE_OK ){
-    assert( pPager->memDb==0 );
-    rc = tdsqlite3PagerSetPagesize(pPager, &szPageDflt, -1);
-    testcase( rc!=SQLITE_OK );
-  }
-
-  /* Initialize the PCache object. */
-  if( rc==SQLITE_OK ){
-    nExtra = ROUND8(nExtra);
-    assert( nExtra>=8 && nExtra<1000 );
-    rc = tdsqlite3PcacheOpen(szPageDflt, nExtra, !memDb,
-                       !memDb?pagerStress:0, (void *)pPager, pPager->pPCache);
-  }
-
-  /* If an error occurred above, free the  Pager structure and close the file.
-  */
-  if( rc!=SQLITE_OK ){
-    tdsqlite3OsClose(pPager->fd);
-    tdsqlite3PageFree(pPager->pTmpSpace);
-    tdsqlite3_free(pPager);
-    return rc;
-  }
-
-  PAGERTRACE(("OPEN %d %s\n", FILEHANDLEID(pPager->fd), pPager->zFilename));
-  IOTRACE(("OPEN %p %s\n", pPager, pPager->zFilename))
-
-  pPager->useJournal = (u8)useJournal;
-  /* pPager->stmtOpen = 0; */
-  /* pPager->stmtInUse = 0; */
-  /* pPager->nRef = 0; */
-  /* pPager->stmtSize = 0; */
-  /* pPager->stmtJSize = 0; */
-  /* pPager->nPage = 0; */
-  pPager->mxPgno = SQLITE_MAX_PAGE_COUNT;
-  /* pPager->state = PAGER_UNLOCK; */
-  /* pPager->errMask = 0; */
-  pPager->tempFile = (u8)tempFile;
-  assert( tempFile==PAGER_LOCKINGMODE_NORMAL 
-          || tempFile==PAGER_LOCKINGMODE_EXCLUSIVE );
-  assert( PAGER_LOCKINGMODE_EXCLUSIVE==1 );
-  pPager->exclusiveMode = (u8)tempFile; 
-  pPager->changeCountDone = pPager->tempFile;
-  pPager->memDb = (u8)memDb;
-  pPager->readOnly = (u8)readOnly;
-  assert( useJournal || pPager->tempFile );
-  int level = SQLITE_DEFAULT_SYNCHRONOUS + 1;
-  pPager->noSync = pPager->tempFile || level==PAGER_SYNCHRONOUS_OFF;
-  if( pPager->noSync ){
-    assert( pPager->fullSync==0 );
-    assert( pPager->extraSync==0 );
-    assert( pPager->syncFlags==0 );
-    assert( pPager->walSyncFlags==0 );
-  }else{
-    pPager->fullSync = level>=PAGER_SYNCHRONOUS_FULL ?1:0;
-    pPager->extraSync = level==PAGER_SYNCHRONOUS_EXTRA ?1:0;
-    pPager->syncFlags = SQLITE_SYNC_NORMAL;
-    pPager->walSyncFlags = (pPager->syncFlags<<2);
-    if( pPager->fullSync ){
-      pPager->walSyncFlags |= pPager->syncFlags;
-    }
-#if SQLITE_DEFAULT_CKPTFULLFSYNC
-    pPager->walSyncFlags |= (SQLITE_SYNC_FULL<<2);
-#endif
-  }
-  /* pPager->pFirst = 0; */
-  /* pPager->pFirstSynced = 0; */
-  /* pPager->pLast = 0; */
-  pPager->nExtra = (u16)nExtra;
-  pPager->journalSizeLimit = SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT;
-  assert( isOpen(pPager->fd) || tempFile );
-  setSectorSize(pPager);
-  if( !useJournal ){
-    pPager->journalMode = PAGER_JOURNALMODE_OFF;
-  }else if( memDb || memJM ){
-    pPager->journalMode = PAGER_JOURNALMODE_MEMORY;
-  }
-  /* pPager->xBusyHandler = 0; */
-  /* pPager->pBusyHandlerArg = 0; */
-  pPager->xReiniter = xReinit;
-  setGetterMethod(pPager);
-  /* memset(pPager->aHash, 0, sizeof(pPager->aHash)); */
-  /* pPager->szMmap = SQLITE_DEFAULT_MMAP_SIZE // will be set by btree.c */
-
-  *ppPager = pPager;
-  return SQLITE_OK;
-}
-
-
-
-/*
-** This function is called after transitioning from PAGER_UNLOCK to
-** PAGER_SHARED state. It tests if there is a hot journal present in
-** the file-system for the given pager. A hot journal is one that 
-** needs to be played back. According to this function, a hot-journal
-** file exists if the following criteria are met:
-**
-**   * The journal file exists in the file system, and
-**   * No process holds a RESERVED or greater lock on the database file, and
-**   * The database file itself is greater than 0 bytes in size, and
-**   * The first byte of the journal file exists and is not 0x00.
-**
-** If the current size of the database file is 0 but a journal file
-** exists, that is probably an old journal left over from a prior
-** database with the same name. In this case the journal file is
-** just deleted using OsDelete, *pExists is set to 0 and SQLITE_OK
-** is returned.
-**
-** This routine does not check if there is a master journal filename
-** at the end of the file. If there is, and that master journal file
-** does not exist, then the journal file is not really hot. In this
-** case this routine will return a false-positive. The pager_playback()
-** routine will discover that the journal file is not really hot and 
-** will not roll it back. 
-**
-** If a hot-journal file is found to exist, *pExists is set to 1 and 
-** SQLITE_OK returned. If no hot-journal file is present, *pExists is
-** set to 0 and SQLITE_OK returned. If an IO error occurs while trying
-** to determine whether or not a hot-journal file exists, the IO error
-** code is returned and the value of *pExists is undefined.
-*/
-static int hasHotJournal(Pager *pPager, int *pExists){
-  tdsqlite3_vfs * const pVfs = pPager->pVfs;
-  int rc = SQLITE_OK;           /* Return code */
-  int exists = 1;               /* True if a journal file is present */
-  int jrnlOpen = !!isOpen(pPager->jfd);
-
-  assert( pPager->useJournal );
-  assert( isOpen(pPager->fd) );
-  assert( pPager->eState==PAGER_OPEN );
-
-  assert( jrnlOpen==0 || ( tdsqlite3OsDeviceCharacteristics(pPager->jfd) &
-    SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN
-  ));
-
-  *pExists = 0;
-  if( !jrnlOpen ){
-    rc = tdsqlite3OsAccess(pVfs, pPager->zJournal, SQLITE_ACCESS_EXISTS, &exists);
-  }
-  if( rc==SQLITE_OK && exists ){
-    int locked = 0;             /* True if some process holds a RESERVED lock */
-
-    /* Race condition here:  Another process might have been holding the
-    ** the RESERVED lock and have a journal open at the tdsqlite3OsAccess() 
-    ** call above, but then delete the journal and drop the lock before
-    ** we get to the following tdsqlite3OsCheckReservedLock() call.  If that
-    ** is the case, this routine might think there is a hot journal when
-    ** in fact there is none.  This results in a false-positive which will
-    ** be dealt with by the playback routine.  Ticket #3883.
-    */
-    rc = tdsqlite3OsCheckReservedLock(pPager->fd, &locked);
-    if( rc==SQLITE_OK && !locked ){
-      Pgno nPage;                 /* Number of pages in database file */
-
-      assert( pPager->tempFile==0 );
-      rc = pagerPagecount(pPager, &nPage);
-      if( rc==SQLITE_OK ){
-        /* If the database is zero pages in size, that means that either (1) the
-        ** journal is a remnant from a prior database with the same name where
-        ** the database file but not the journal was deleted, or (2) the initial
-        ** transaction that populates a new database is being rolled back.
-        ** In either case, the journal file can be deleted.  However, take care
-        ** not to delete the journal file if it is already open due to
-        ** journal_mode=PERSIST.
-        */
-        if( nPage==0 && !jrnlOpen ){
-          tdsqlite3BeginBenignMalloc();
-          if( pagerLockDb(pPager, RESERVED_LOCK)==SQLITE_OK ){
-            tdsqlite3OsDelete(pVfs, pPager->zJournal, 0);
-            if( !pPager->exclusiveMode ) pagerUnlockDb(pPager, SHARED_LOCK);
-          }
-          tdsqlite3EndBenignMalloc();
-        }else{
-          /* The journal file exists and no other connection has a reserved
-          ** or greater lock on the database file. Now check that there is
-          ** at least one non-zero bytes at the start of the journal file.
-          ** If there is, then we consider this journal to be hot. If not, 
-          ** it can be ignored.
-          */
-          if( !jrnlOpen ){
-            int f = SQLITE_OPEN_READONLY|SQLITE_OPEN_MAIN_JOURNAL;
-            rc = tdsqlite3OsOpen(pVfs, pPager->zJournal, pPager->jfd, f, &f);
-          }
-          if( rc==SQLITE_OK ){
-            u8 first = 0;
-            rc = tdsqlite3OsRead(pPager->jfd, (void *)&first, 1, 0);
-            if( rc==SQLITE_IOERR_SHORT_READ ){
-              rc = SQLITE_OK;
-            }
-            if( !jrnlOpen ){
-              tdsqlite3OsClose(pPager->jfd);
-            }
-            *pExists = (first!=0);
-          }else if( rc==SQLITE_CANTOPEN ){
-            /* If we cannot open the rollback journal file in order to see if
-            ** it has a zero header, that might be due to an I/O error, or
-            ** it might be due to the race condition described above and in
-            ** ticket #3883.  Either way, assume that the journal is hot.
-            ** This might be a false positive.  But if it is, then the
-            ** automatic journal playback and recovery mechanism will deal
-            ** with it under an EXCLUSIVE lock where we do not need to
-            ** worry so much with race conditions.
-            */
-            *pExists = 1;
-            rc = SQLITE_OK;
-          }
-        }
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** This function is called to obtain a shared lock on the database file.
-** It is illegal to call tdsqlite3PagerGet() until after this function
-** has been successfully called. If a shared-lock is already held when
-** this function is called, it is a no-op.
-**
-** The following operations are also performed by this function.
-**
-**   1) If the pager is currently in PAGER_OPEN state (no lock held
-**      on the database file), then an attempt is made to obtain a
-**      SHARED lock on the database file. Immediately after obtaining
-**      the SHARED lock, the file-system is checked for a hot-journal,
-**      which is played back if present. Following any hot-journal 
-**      rollback, the contents of the cache are validated by checking
-**      the 'change-counter' field of the database file header and
-**      discarded if they are found to be invalid.
-**
-**   2) If the pager is running in exclusive-mode, and there are currently
-**      no outstanding references to any pages, and is in the error state,
-**      then an attempt is made to clear the error state by discarding
-**      the contents of the page cache and rolling back any open journal
-**      file.
-**
-** If everything is successful, SQLITE_OK is returned. If an IO error 
-** occurs while locking the database, checking for a hot-journal file or 
-** rolling back a journal file, the IO error code is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSharedLock(Pager *pPager){
-  int rc = SQLITE_OK;                /* Return code */
-
-  /* This routine is only called from b-tree and only when there are no
-  ** outstanding pages. This implies that the pager state should either
-  ** be OPEN or READER. READER is only possible if the pager is or was in 
-  ** exclusive access mode.  */
-  assert( tdsqlite3PcacheRefCount(pPager->pPCache)==0 );
-  assert( assert_pager_state(pPager) );
-  assert( pPager->eState==PAGER_OPEN || pPager->eState==PAGER_READER );
-  assert( pPager->errCode==SQLITE_OK );
-
-  if( !pagerUseWal(pPager) && pPager->eState==PAGER_OPEN ){
-    int bHotJournal = 1;          /* True if there exists a hot journal-file */
-
-    assert( !MEMDB );
-    assert( pPager->tempFile==0 || pPager->eLock==EXCLUSIVE_LOCK );
-
-    rc = pager_wait_on_lock(pPager, SHARED_LOCK);
-    if( rc!=SQLITE_OK ){
-      assert( pPager->eLock==NO_LOCK || pPager->eLock==UNKNOWN_LOCK );
-      goto failed;
-    }
-
-    /* If a journal file exists, and there is no RESERVED lock on the
-    ** database file, then it either needs to be played back or deleted.
-    */
-    if( pPager->eLock<=SHARED_LOCK ){
-      rc = hasHotJournal(pPager, &bHotJournal);
-    }
-    if( rc!=SQLITE_OK ){
-      goto failed;
-    }
-    if( bHotJournal ){
-      if( pPager->readOnly ){
-        rc = SQLITE_READONLY_ROLLBACK;
-        goto failed;
-      }
-
-      /* Get an EXCLUSIVE lock on the database file. At this point it is
-      ** important that a RESERVED lock is not obtained on the way to the
-      ** EXCLUSIVE lock. If it were, another process might open the
-      ** database file, detect the RESERVED lock, and conclude that the
-      ** database is safe to read while this process is still rolling the 
-      ** hot-journal back.
-      ** 
-      ** Because the intermediate RESERVED lock is not requested, any
-      ** other process attempting to access the database file will get to 
-      ** this point in the code and fail to obtain its own EXCLUSIVE lock 
-      ** on the database file.
-      **
-      ** Unless the pager is in locking_mode=exclusive mode, the lock is
-      ** downgraded to SHARED_LOCK before this function returns.
-      */
-      rc = pagerLockDb(pPager, EXCLUSIVE_LOCK);
-      if( rc!=SQLITE_OK ){
-        goto failed;
-      }
- 
-      /* If it is not already open and the file exists on disk, open the 
-      ** journal for read/write access. Write access is required because 
-      ** in exclusive-access mode the file descriptor will be kept open 
-      ** and possibly used for a transaction later on. Also, write-access 
-      ** is usually required to finalize the journal in journal_mode=persist 
-      ** mode (and also for journal_mode=truncate on some systems).
-      **
-      ** If the journal does not exist, it usually means that some 
-      ** other connection managed to get in and roll it back before 
-      ** this connection obtained the exclusive lock above. Or, it 
-      ** may mean that the pager was in the error-state when this
-      ** function was called and the journal file does not exist.
-      */
-      if( !isOpen(pPager->jfd) ){
-        tdsqlite3_vfs * const pVfs = pPager->pVfs;
-        int bExists;              /* True if journal file exists */
-        rc = tdsqlite3OsAccess(
-            pVfs, pPager->zJournal, SQLITE_ACCESS_EXISTS, &bExists);
-        if( rc==SQLITE_OK && bExists ){
-          int fout = 0;
-          int f = SQLITE_OPEN_READWRITE|SQLITE_OPEN_MAIN_JOURNAL;
-          assert( !pPager->tempFile );
-          rc = tdsqlite3OsOpen(pVfs, pPager->zJournal, pPager->jfd, f, &fout);
-          assert( rc!=SQLITE_OK || isOpen(pPager->jfd) );
-          if( rc==SQLITE_OK && fout&SQLITE_OPEN_READONLY ){
-            rc = SQLITE_CANTOPEN_BKPT;
-            tdsqlite3OsClose(pPager->jfd);
-          }
-        }
-      }
- 
-      /* Playback and delete the journal.  Drop the database write
-      ** lock and reacquire the read lock. Purge the cache before
-      ** playing back the hot-journal so that we don't end up with
-      ** an inconsistent cache.  Sync the hot journal before playing
-      ** it back since the process that crashed and left the hot journal
-      ** probably did not sync it and we are required to always sync
-      ** the journal before playing it back.
-      */
-      if( isOpen(pPager->jfd) ){
-        assert( rc==SQLITE_OK );
-        rc = pagerSyncHotJournal(pPager);
-        if( rc==SQLITE_OK ){
-          rc = pager_playback(pPager, !pPager->tempFile);
-          pPager->eState = PAGER_OPEN;
-        }
-      }else if( !pPager->exclusiveMode ){
-        pagerUnlockDb(pPager, SHARED_LOCK);
-      }
-
-      if( rc!=SQLITE_OK ){
-        /* This branch is taken if an error occurs while trying to open
-        ** or roll back a hot-journal while holding an EXCLUSIVE lock. The
-        ** pager_unlock() routine will be called before returning to unlock
-        ** the file. If the unlock attempt fails, then Pager.eLock must be
-        ** set to UNKNOWN_LOCK (see the comment above the #define for 
-        ** UNKNOWN_LOCK above for an explanation). 
-        **
-        ** In order to get pager_unlock() to do this, set Pager.eState to
-        ** PAGER_ERROR now. This is not actually counted as a transition
-        ** to ERROR state in the state diagram at the top of this file,
-        ** since we know that the same call to pager_unlock() will very
-        ** shortly transition the pager object to the OPEN state. Calling
-        ** assert_pager_state() would fail now, as it should not be possible
-        ** to be in ERROR state when there are zero outstanding page 
-        ** references.
-        */
-        pager_error(pPager, rc);
-        goto failed;
-      }
-
-      assert( pPager->eState==PAGER_OPEN );
-      assert( (pPager->eLock==SHARED_LOCK)
-           || (pPager->exclusiveMode && pPager->eLock>SHARED_LOCK)
-      );
-    }
-
-    if( !pPager->tempFile && pPager->hasHeldSharedLock ){
-      /* The shared-lock has just been acquired then check to
-      ** see if the database has been modified.  If the database has changed,
-      ** flush the cache.  The hasHeldSharedLock flag prevents this from
-      ** occurring on the very first access to a file, in order to save a
-      ** single unnecessary tdsqlite3OsRead() call at the start-up.
-      **
-      ** Database changes are detected by looking at 15 bytes beginning
-      ** at offset 24 into the file.  The first 4 of these 16 bytes are
-      ** a 32-bit counter that is incremented with each change.  The
-      ** other bytes change randomly with each file change when
-      ** a codec is in use.
-      ** 
-      ** There is a vanishingly small chance that a change will not be 
-      ** detected.  The chance of an undetected change is so small that
-      ** it can be neglected.
-      */
-      char dbFileVers[sizeof(pPager->dbFileVers)];
-
-      IOTRACE(("CKVERS %p %d\n", pPager, sizeof(dbFileVers)));
-      rc = tdsqlite3OsRead(pPager->fd, &dbFileVers, sizeof(dbFileVers), 24);
-      if( rc!=SQLITE_OK ){
-        if( rc!=SQLITE_IOERR_SHORT_READ ){
-          goto failed;
-        }
-        memset(dbFileVers, 0, sizeof(dbFileVers));
-      }
-
-      if( memcmp(pPager->dbFileVers, dbFileVers, sizeof(dbFileVers))!=0 ){
-        pager_reset(pPager);
-
-        /* Unmap the database file. It is possible that external processes
-        ** may have truncated the database file and then extended it back
-        ** to its original size while this process was not holding a lock.
-        ** In this case there may exist a Pager.pMap mapping that appears
-        ** to be the right size but is not actually valid. Avoid this
-        ** possibility by unmapping the db here. */
-        if( USEFETCH(pPager) ){
-          tdsqlite3OsUnfetch(pPager->fd, 0, 0);
-        }
-      }
-    }
-
-    /* If there is a WAL file in the file-system, open this database in WAL
-    ** mode. Otherwise, the following function call is a no-op.
-    */
-    rc = pagerOpenWalIfPresent(pPager);
-#ifndef SQLITE_OMIT_WAL
-    assert( pPager->pWal==0 || rc==SQLITE_OK );
-#endif
-  }
-
-  if( pagerUseWal(pPager) ){
-    assert( rc==SQLITE_OK );
-    rc = pagerBeginReadTransaction(pPager);
-  }
-
-  if( pPager->tempFile==0 && pPager->eState==PAGER_OPEN && rc==SQLITE_OK ){
-    rc = pagerPagecount(pPager, &pPager->dbSize);
-  }
-
- failed:
-  if( rc!=SQLITE_OK ){
-    assert( !MEMDB );
-    pager_unlock(pPager);
-    assert( pPager->eState==PAGER_OPEN );
-  }else{
-    pPager->eState = PAGER_READER;
-    pPager->hasHeldSharedLock = 1;
-  }
-  return rc;
-}
-
-/*
-** If the reference count has reached zero, rollback any active
-** transaction and unlock the pager.
-**
-** Except, in locking_mode=EXCLUSIVE when there is nothing to in
-** the rollback journal, the unlock is not performed and there is
-** nothing to rollback, so this routine is a no-op.
-*/ 
-static void pagerUnlockIfUnused(Pager *pPager){
-  if( tdsqlite3PcacheRefCount(pPager->pPCache)==0 ){
-    assert( pPager->nMmapOut==0 ); /* because page1 is never memory mapped */
-    pagerUnlockAndRollback(pPager);
-  }
-}
-
-/*
-** The page getter methods each try to acquire a reference to a
-** page with page number pgno. If the requested reference is 
-** successfully obtained, it is copied to *ppPage and SQLITE_OK returned.
-**
-** There are different implementations of the getter method depending
-** on the current state of the pager.
-**
-**     getPageNormal()         --  The normal getter
-**     getPageError()          --  Used if the pager is in an error state
-**     getPageMmap()           --  Used if memory-mapped I/O is enabled
-**
-** If the requested page is already in the cache, it is returned. 
-** Otherwise, a new page object is allocated and populated with data
-** read from the database file. In some cases, the pcache module may
-** choose not to allocate a new page object and may reuse an existing
-** object with no outstanding references.
-**
-** The extra data appended to a page is always initialized to zeros the 
-** first time a page is loaded into memory. If the page requested is 
-** already in the cache when this function is called, then the extra
-** data is left as it was when the page object was last used.
-**
-** If the database image is smaller than the requested page or if 
-** the flags parameter contains the PAGER_GET_NOCONTENT bit and the 
-** requested page is not already stored in the cache, then no 
-** actual disk read occurs. In this case the memory image of the 
-** page is initialized to all zeros. 
-**
-** If PAGER_GET_NOCONTENT is true, it means that we do not care about
-** the contents of the page. This occurs in two scenarios:
-**
-**   a) When reading a free-list leaf page from the database, and
-**
-**   b) When a savepoint is being rolled back and we need to load
-**      a new page into the cache to be filled with the data read
-**      from the savepoint journal.
-**
-** If PAGER_GET_NOCONTENT is true, then the data returned is zeroed instead
-** of being read from the database. Additionally, the bits corresponding
-** to pgno in Pager.pInJournal (bitvec of pages already written to the
-** journal file) and the PagerSavepoint.pInSavepoint bitvecs of any open
-** savepoints are set. This means if the page is made writable at any
-** point in the future, using a call to tdsqlite3PagerWrite(), its contents
-** will not be journaled. This saves IO.
-**
-** The acquisition might fail for several reasons.  In all cases,
-** an appropriate error code is returned and *ppPage is set to NULL.
-**
-** See also tdsqlite3PagerLookup().  Both this routine and Lookup() attempt
-** to find a page in the in-memory cache first.  If the page is not already
-** in memory, this routine goes to disk to read it in whereas Lookup()
-** just returns 0.  This routine acquires a read-lock the first time it
-** has to go to disk, and could also playback an old journal if necessary.
-** Since Lookup() never goes to disk, it never has to deal with locks
-** or journal files.
-*/
-static int getPageNormal(
-  Pager *pPager,      /* The pager open on the database file */
-  Pgno pgno,          /* Page number to fetch */
-  DbPage **ppPage,    /* Write a pointer to the page here */
-  int flags           /* PAGER_GET_XXX flags */
-){
-  int rc = SQLITE_OK;
-  PgHdr *pPg;
-  u8 noContent;                   /* True if PAGER_GET_NOCONTENT is set */
-  tdsqlite3_pcache_page *pBase;
-
-  assert( pPager->errCode==SQLITE_OK );
-  assert( pPager->eState>=PAGER_READER );
-  assert( assert_pager_state(pPager) );
-  assert( pPager->hasHeldSharedLock==1 );
-
-  if( pgno==0 ) return SQLITE_CORRUPT_BKPT;
-  pBase = tdsqlite3PcacheFetch(pPager->pPCache, pgno, 3);
-  if( pBase==0 ){
-    pPg = 0;
-    rc = tdsqlite3PcacheFetchStress(pPager->pPCache, pgno, &pBase);
-    if( rc!=SQLITE_OK ) goto pager_acquire_err;
-    if( pBase==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-      goto pager_acquire_err;
-    }
-  }
-  pPg = *ppPage = tdsqlite3PcacheFetchFinish(pPager->pPCache, pgno, pBase);
-  assert( pPg==(*ppPage) );
-  assert( pPg->pgno==pgno );
-  assert( pPg->pPager==pPager || pPg->pPager==0 );
-
-  noContent = (flags & PAGER_GET_NOCONTENT)!=0;
-  if( pPg->pPager && !noContent ){
-    /* In this case the pcache already contains an initialized copy of
-    ** the page. Return without further ado.  */
-    assert( pgno<=PAGER_MAX_PGNO && pgno!=PAGER_MJ_PGNO(pPager) );
-    pPager->aStat[PAGER_STAT_HIT]++;
-    return SQLITE_OK;
-
-  }else{
-    /* The pager cache has created a new page. Its content needs to 
-    ** be initialized. But first some error checks:
-    **
-    ** (1) The maximum page number is 2^31
-    ** (2) Never try to fetch the locking page
-    */
-    if( pgno>PAGER_MAX_PGNO || pgno==PAGER_MJ_PGNO(pPager) ){
-      rc = SQLITE_CORRUPT_BKPT;
-      goto pager_acquire_err;
-    }
-
-    pPg->pPager = pPager;
-
-    assert( !isOpen(pPager->fd) || !MEMDB );
-    if( !isOpen(pPager->fd) || pPager->dbSize<pgno || noContent ){
-      if( pgno>pPager->mxPgno ){
-        rc = SQLITE_FULL;
-        goto pager_acquire_err;
-      }
-      if( noContent ){
-        /* Failure to set the bits in the InJournal bit-vectors is benign.
-        ** It merely means that we might do some extra work to journal a 
-        ** page that does not need to be journaled.  Nevertheless, be sure 
-        ** to test the case where a malloc error occurs while trying to set 
-        ** a bit in a bit vector.
-        */
-        tdsqlite3BeginBenignMalloc();
-        if( pgno<=pPager->dbOrigSize ){
-          TESTONLY( rc = ) tdsqlite3BitvecSet(pPager->pInJournal, pgno);
-          testcase( rc==SQLITE_NOMEM );
-        }
-        TESTONLY( rc = ) addToSavepointBitvecs(pPager, pgno);
-        testcase( rc==SQLITE_NOMEM );
-        tdsqlite3EndBenignMalloc();
-      }
-      memset(pPg->pData, 0, pPager->pageSize);
-      IOTRACE(("ZERO %p %d\n", pPager, pgno));
-    }else{
-      assert( pPg->pPager==pPager );
-      pPager->aStat[PAGER_STAT_MISS]++;
-      rc = readDbPage(pPg);
-      if( rc!=SQLITE_OK ){
-        goto pager_acquire_err;
-      }
-    }
-    pager_set_pagehash(pPg);
-  }
-  return SQLITE_OK;
-
-pager_acquire_err:
-  assert( rc!=SQLITE_OK );
-  if( pPg ){
-    tdsqlite3PcacheDrop(pPg);
-  }
-  pagerUnlockIfUnused(pPager);
-  *ppPage = 0;
-  return rc;
-}
-
-#if SQLITE_MAX_MMAP_SIZE>0
-/* The page getter for when memory-mapped I/O is enabled */
-static int getPageMMap(
-  Pager *pPager,      /* The pager open on the database file */
-  Pgno pgno,          /* Page number to fetch */
-  DbPage **ppPage,    /* Write a pointer to the page here */
-  int flags           /* PAGER_GET_XXX flags */
-){
-  int rc = SQLITE_OK;
-  PgHdr *pPg = 0;
-  u32 iFrame = 0;                 /* Frame to read from WAL file */
-
-  /* It is acceptable to use a read-only (mmap) page for any page except
-  ** page 1 if there is no write-transaction open or the ACQUIRE_READONLY
-  ** flag was specified by the caller. And so long as the db is not a 
-  ** temporary or in-memory database.  */
-  const int bMmapOk = (pgno>1
-   && (pPager->eState==PAGER_READER || (flags & PAGER_GET_READONLY))
-  );
-
-  assert( USEFETCH(pPager) );
-#ifdef SQLITE_HAS_CODEC
-  assert( pPager->xCodec==0 );
-#endif
-
-  /* Optimization note:  Adding the "pgno<=1" term before "pgno==0" here
-  ** allows the compiler optimizer to reuse the results of the "pgno>1"
-  ** test in the previous statement, and avoid testing pgno==0 in the
-  ** common case where pgno is large. */
-  if( pgno<=1 && pgno==0 ){
-    return SQLITE_CORRUPT_BKPT;
-  }
-  assert( pPager->eState>=PAGER_READER );
-  assert( assert_pager_state(pPager) );
-  assert( pPager->hasHeldSharedLock==1 );
-  assert( pPager->errCode==SQLITE_OK );
-
-  if( bMmapOk && pagerUseWal(pPager) ){
-    rc = tdsqlite3WalFindFrame(pPager->pWal, pgno, &iFrame);
-    if( rc!=SQLITE_OK ){
-      *ppPage = 0;
-      return rc;
-    }
-  }
-  if( bMmapOk && iFrame==0 ){
-    void *pData = 0;
-    rc = tdsqlite3OsFetch(pPager->fd, 
-        (i64)(pgno-1) * pPager->pageSize, pPager->pageSize, &pData
-    );
-    if( rc==SQLITE_OK && pData ){
-      if( pPager->eState>PAGER_READER || pPager->tempFile ){
-        pPg = tdsqlite3PagerLookup(pPager, pgno);
-      }
-      if( pPg==0 ){
-        rc = pagerAcquireMapPage(pPager, pgno, pData, &pPg);
-      }else{
-        tdsqlite3OsUnfetch(pPager->fd, (i64)(pgno-1)*pPager->pageSize, pData);
-      }
-      if( pPg ){
-        assert( rc==SQLITE_OK );
-        *ppPage = pPg;
-        return SQLITE_OK;
-      }
-    }
-    if( rc!=SQLITE_OK ){
-      *ppPage = 0;
-      return rc;
-    }
-  }
-  return getPageNormal(pPager, pgno, ppPage, flags);
-}
-#endif /* SQLITE_MAX_MMAP_SIZE>0 */
-
-/* The page getter method for when the pager is an error state */
-static int getPageError(
-  Pager *pPager,      /* The pager open on the database file */
-  Pgno pgno,          /* Page number to fetch */
-  DbPage **ppPage,    /* Write a pointer to the page here */
-  int flags           /* PAGER_GET_XXX flags */
-){
-  UNUSED_PARAMETER(pgno);
-  UNUSED_PARAMETER(flags);
-  assert( pPager->errCode!=SQLITE_OK );
-  *ppPage = 0;
-  return pPager->errCode;
-}
-
-
-/* Dispatch all page fetch requests to the appropriate getter method.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerGet(
-  Pager *pPager,      /* The pager open on the database file */
-  Pgno pgno,          /* Page number to fetch */
-  DbPage **ppPage,    /* Write a pointer to the page here */
-  int flags           /* PAGER_GET_XXX flags */
-){
-  return pPager->xGet(pPager, pgno, ppPage, flags);
-}
-
-/*
-** Acquire a page if it is already in the in-memory cache.  Do
-** not read the page from disk.  Return a pointer to the page,
-** or 0 if the page is not in cache. 
-**
-** See also tdsqlite3PagerGet().  The difference between this routine
-** and tdsqlite3PagerGet() is that _get() will go to the disk and read
-** in the page if the page is not already in cache.  This routine
-** returns NULL if the page is not in cache or if a disk I/O error 
-** has ever happened.
-*/
-SQLITE_PRIVATE DbPage *tdsqlite3PagerLookup(Pager *pPager, Pgno pgno){
-  tdsqlite3_pcache_page *pPage;
-  assert( pPager!=0 );
-  assert( pgno!=0 );
-  assert( pPager->pPCache!=0 );
-  pPage = tdsqlite3PcacheFetch(pPager->pPCache, pgno, 0);
-  assert( pPage==0 || pPager->hasHeldSharedLock );
-  if( pPage==0 ) return 0;
-  return tdsqlite3PcacheFetchFinish(pPager->pPCache, pgno, pPage);
-}
-
-/*
-** Release a page reference.
-**
-** The tdsqlite3PagerUnref() and tdsqlite3PagerUnrefNotNull() may only be
-** used if we know that the page being released is not the last page.
-** The btree layer always holds page1 open until the end, so these first
-** to routines can be used to release any page other than BtShared.pPage1.
-**
-** Use tdsqlite3PagerUnrefPageOne() to release page1.  This latter routine
-** checks the total number of outstanding pages and if the number of
-** pages reaches zero it drops the database lock.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerUnrefNotNull(DbPage *pPg){
-  TESTONLY( Pager *pPager = pPg->pPager; )
-  assert( pPg!=0 );
-  if( pPg->flags & PGHDR_MMAP ){
-    assert( pPg->pgno!=1 );  /* Page1 is never memory mapped */
-    pagerReleaseMapPage(pPg);
-  }else{
-    tdsqlite3PcacheRelease(pPg);
-  }
-  /* Do not use this routine to release the last reference to page1 */
-  assert( tdsqlite3PcacheRefCount(pPager->pPCache)>0 );
-}
-SQLITE_PRIVATE void tdsqlite3PagerUnref(DbPage *pPg){
-  if( pPg ) tdsqlite3PagerUnrefNotNull(pPg);
-}
-SQLITE_PRIVATE void tdsqlite3PagerUnrefPageOne(DbPage *pPg){
-  Pager *pPager;
-  assert( pPg!=0 );
-  assert( pPg->pgno==1 );
-  assert( (pPg->flags & PGHDR_MMAP)==0 ); /* Page1 is never memory mapped */
-  pPager = pPg->pPager;
-  tdsqlite3PagerResetLockTimeout(pPager);
-  tdsqlite3PcacheRelease(pPg);
-  pagerUnlockIfUnused(pPager);
-}
-
-/*
-** This function is called at the start of every write transaction.
-** There must already be a RESERVED or EXCLUSIVE lock on the database 
-** file when this routine is called.
-**
-** Open the journal file for pager pPager and write a journal header
-** to the start of it. If there are active savepoints, open the sub-journal
-** as well. This function is only used when the journal file is being 
-** opened to write a rollback log for a transaction. It is not used 
-** when opening a hot journal file to roll it back.
-**
-** If the journal file is already open (as it may be in exclusive mode),
-** then this function just writes a journal header to the start of the
-** already open file. 
-**
-** Whether or not the journal file is opened by this function, the
-** Pager.pInJournal bitvec structure is allocated.
-**
-** Return SQLITE_OK if everything is successful. Otherwise, return 
-** SQLITE_NOMEM if the attempt to allocate Pager.pInJournal fails, or 
-** an IO error code if opening or writing the journal file fails.
-*/
-static int pager_open_journal(Pager *pPager){
-  int rc = SQLITE_OK;                        /* Return code */
-  tdsqlite3_vfs * const pVfs = pPager->pVfs;   /* Local cache of vfs pointer */
-
-  assert( pPager->eState==PAGER_WRITER_LOCKED );
-  assert( assert_pager_state(pPager) );
-  assert( pPager->pInJournal==0 );
-  
-  /* If already in the error state, this function is a no-op.  But on
-  ** the other hand, this routine is never called if we are already in
-  ** an error state. */
-  if( NEVER(pPager->errCode) ) return pPager->errCode;
-
-  if( !pagerUseWal(pPager) && pPager->journalMode!=PAGER_JOURNALMODE_OFF ){
-    pPager->pInJournal = tdsqlite3BitvecCreate(pPager->dbSize);
-    if( pPager->pInJournal==0 ){
-      return SQLITE_NOMEM_BKPT;
-    }
-  
-    /* Open the journal file if it is not already open. */
-    if( !isOpen(pPager->jfd) ){
-      if( pPager->journalMode==PAGER_JOURNALMODE_MEMORY ){
-        tdsqlite3MemJournalOpen(pPager->jfd);
-      }else{
-        int flags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
-        int nSpill;
-
-        if( pPager->tempFile ){
-          flags |= (SQLITE_OPEN_DELETEONCLOSE|SQLITE_OPEN_TEMP_JOURNAL);
-          nSpill = tdsqlite3Config.nStmtSpill;
-        }else{
-          flags |= SQLITE_OPEN_MAIN_JOURNAL;
-          nSpill = jrnlBufferSize(pPager);
-        }
-          
-        /* Verify that the database still has the same name as it did when
-        ** it was originally opened. */
-        rc = databaseIsUnmoved(pPager);
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3JournalOpen (
-              pVfs, pPager->zJournal, pPager->jfd, flags, nSpill
-          );
-        }
-      }
-      assert( rc!=SQLITE_OK || isOpen(pPager->jfd) );
-    }
-  
-  
-    /* Write the first journal header to the journal file and open 
-    ** the sub-journal if necessary.
-    */
-    if( rc==SQLITE_OK ){
-      /* TODO: Check if all of these are really required. */
-      pPager->nRec = 0;
-      pPager->journalOff = 0;
-      pPager->setMaster = 0;
-      pPager->journalHdr = 0;
-      rc = writeJournalHdr(pPager);
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3BitvecDestroy(pPager->pInJournal);
-    pPager->pInJournal = 0;
-  }else{
-    assert( pPager->eState==PAGER_WRITER_LOCKED );
-    pPager->eState = PAGER_WRITER_CACHEMOD;
-  }
-
-  return rc;
-}
-
-/*
-** Begin a write-transaction on the specified pager object. If a 
-** write-transaction has already been opened, this function is a no-op.
-**
-** If the exFlag argument is false, then acquire at least a RESERVED
-** lock on the database file. If exFlag is true, then acquire at least
-** an EXCLUSIVE lock. If such a lock is already held, no locking 
-** functions need be called.
-**
-** If the subjInMemory argument is non-zero, then any sub-journal opened
-** within this transaction will be opened as an in-memory file. This
-** has no effect if the sub-journal is already opened (as it may be when
-** running in exclusive mode) or if the transaction does not require a
-** sub-journal. If the subjInMemory argument is zero, then any required
-** sub-journal is implemented in-memory if pPager is an in-memory database, 
-** or using a temporary file otherwise.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerBegin(Pager *pPager, int exFlag, int subjInMemory){
-  int rc = SQLITE_OK;
-
-  if( pPager->errCode ) return pPager->errCode;
-  assert( pPager->eState>=PAGER_READER && pPager->eState<PAGER_ERROR );
-  pPager->subjInMemory = (u8)subjInMemory;
-
-  if( ALWAYS(pPager->eState==PAGER_READER) ){
-    assert( pPager->pInJournal==0 );
-
-    if( pagerUseWal(pPager) ){
-      /* If the pager is configured to use locking_mode=exclusive, and an
-      ** exclusive lock on the database is not already held, obtain it now.
-      */
-      if( pPager->exclusiveMode && tdsqlite3WalExclusiveMode(pPager->pWal, -1) ){
-        rc = pagerLockDb(pPager, EXCLUSIVE_LOCK);
-        if( rc!=SQLITE_OK ){
-          return rc;
-        }
-        (void)tdsqlite3WalExclusiveMode(pPager->pWal, 1);
-      }
-
-      /* Grab the write lock on the log file. If successful, upgrade to
-      ** PAGER_RESERVED state. Otherwise, return an error code to the caller.
-      ** The busy-handler is not invoked if another connection already
-      ** holds the write-lock. If possible, the upper layer will call it.
-      */
-      rc = tdsqlite3WalBeginWriteTransaction(pPager->pWal);
-    }else{
-      /* Obtain a RESERVED lock on the database file. If the exFlag parameter
-      ** is true, then immediately upgrade this to an EXCLUSIVE lock. The
-      ** busy-handler callback can be used when upgrading to the EXCLUSIVE
-      ** lock, but not when obtaining the RESERVED lock.
-      */
-      rc = pagerLockDb(pPager, RESERVED_LOCK);
-      if( rc==SQLITE_OK && exFlag ){
-        rc = pager_wait_on_lock(pPager, EXCLUSIVE_LOCK);
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      /* Change to WRITER_LOCKED state.
-      **
-      ** WAL mode sets Pager.eState to PAGER_WRITER_LOCKED or CACHEMOD
-      ** when it has an open transaction, but never to DBMOD or FINISHED.
-      ** This is because in those states the code to roll back savepoint 
-      ** transactions may copy data from the sub-journal into the database 
-      ** file as well as into the page cache. Which would be incorrect in 
-      ** WAL mode.
-      */
-      pPager->eState = PAGER_WRITER_LOCKED;
-      pPager->dbHintSize = pPager->dbSize;
-      pPager->dbFileSize = pPager->dbSize;
-      pPager->dbOrigSize = pPager->dbSize;
-      pPager->journalOff = 0;
-    }
-
-    assert( rc==SQLITE_OK || pPager->eState==PAGER_READER );
-    assert( rc!=SQLITE_OK || pPager->eState==PAGER_WRITER_LOCKED );
-    assert( assert_pager_state(pPager) );
-  }
-
-  PAGERTRACE(("TRANSACTION %d\n", PAGERID(pPager)));
-  return rc;
-}
-
-/*
-** Write page pPg onto the end of the rollback journal.
-*/
-static SQLITE_NOINLINE int pagerAddPageToRollbackJournal(PgHdr *pPg){
-  Pager *pPager = pPg->pPager;
-  int rc;
-  u32 cksum;
-  char *pData2;
-  i64 iOff = pPager->journalOff;
-
-  /* We should never write to the journal file the page that
-  ** contains the database locks.  The following assert verifies
-  ** that we do not. */
-  assert( pPg->pgno!=PAGER_MJ_PGNO(pPager) );
-
-  assert( pPager->journalHdr<=pPager->journalOff );
-  CODEC2(pPager, pPg->pData, pPg->pgno, 7, return SQLITE_NOMEM_BKPT, pData2);
-  cksum = pager_cksum(pPager, (u8*)pData2);
-
-  /* Even if an IO or diskfull error occurs while journalling the
-  ** page in the block above, set the need-sync flag for the page.
-  ** Otherwise, when the transaction is rolled back, the logic in
-  ** playback_one_page() will think that the page needs to be restored
-  ** in the database file. And if an IO error occurs while doing so,
-  ** then corruption may follow.
-  */
-  pPg->flags |= PGHDR_NEED_SYNC;
-
-  rc = write32bits(pPager->jfd, iOff, pPg->pgno);
-  if( rc!=SQLITE_OK ) return rc;
-  rc = tdsqlite3OsWrite(pPager->jfd, pData2, pPager->pageSize, iOff+4);
-  if( rc!=SQLITE_OK ) return rc;
-  rc = write32bits(pPager->jfd, iOff+pPager->pageSize+4, cksum);
-  if( rc!=SQLITE_OK ) return rc;
-
-  IOTRACE(("JOUT %p %d %lld %d\n", pPager, pPg->pgno, 
-           pPager->journalOff, pPager->pageSize));
-  PAGER_INCR(tdsqlite3_pager_writej_count);
-  PAGERTRACE(("JOURNAL %d page %d needSync=%d hash(%08x)\n",
-       PAGERID(pPager), pPg->pgno, 
-       ((pPg->flags&PGHDR_NEED_SYNC)?1:0), pager_pagehash(pPg)));
-
-  pPager->journalOff += 8 + pPager->pageSize;
-  pPager->nRec++;
-  assert( pPager->pInJournal!=0 );
-  rc = tdsqlite3BitvecSet(pPager->pInJournal, pPg->pgno);
-  testcase( rc==SQLITE_NOMEM );
-  assert( rc==SQLITE_OK || rc==SQLITE_NOMEM );
-  rc |= addToSavepointBitvecs(pPager, pPg->pgno);
-  assert( rc==SQLITE_OK || rc==SQLITE_NOMEM );
-  return rc;
-}
-
-/*
-** Mark a single data page as writeable. The page is written into the 
-** main journal or sub-journal as required. If the page is written into
-** one of the journals, the corresponding bit is set in the 
-** Pager.pInJournal bitvec and the PagerSavepoint.pInSavepoint bitvecs
-** of any open savepoints as appropriate.
-*/
-static int pager_write(PgHdr *pPg){
-  Pager *pPager = pPg->pPager;
-  int rc = SQLITE_OK;
-
-  /* This routine is not called unless a write-transaction has already 
-  ** been started. The journal file may or may not be open at this point.
-  ** It is never called in the ERROR state.
-  */
-  assert( pPager->eState==PAGER_WRITER_LOCKED
-       || pPager->eState==PAGER_WRITER_CACHEMOD
-       || pPager->eState==PAGER_WRITER_DBMOD
-  );
-  assert( assert_pager_state(pPager) );
-  assert( pPager->errCode==0 );
-  assert( pPager->readOnly==0 );
-  CHECK_PAGE(pPg);
-
-  /* The journal file needs to be opened. Higher level routines have already
-  ** obtained the necessary locks to begin the write-transaction, but the
-  ** rollback journal might not yet be open. Open it now if this is the case.
-  **
-  ** This is done before calling tdsqlite3PcacheMakeDirty() on the page. 
-  ** Otherwise, if it were done after calling tdsqlite3PcacheMakeDirty(), then
-  ** an error might occur and the pager would end up in WRITER_LOCKED state
-  ** with pages marked as dirty in the cache.
-  */
-  if( pPager->eState==PAGER_WRITER_LOCKED ){
-    rc = pager_open_journal(pPager);
-    if( rc!=SQLITE_OK ) return rc;
-  }
-  assert( pPager->eState>=PAGER_WRITER_CACHEMOD );
-  assert( assert_pager_state(pPager) );
-
-  /* Mark the page that is about to be modified as dirty. */
-  tdsqlite3PcacheMakeDirty(pPg);
-
-  /* If a rollback journal is in use, them make sure the page that is about
-  ** to change is in the rollback journal, or if the page is a new page off
-  ** then end of the file, make sure it is marked as PGHDR_NEED_SYNC.
-  */
-  assert( (pPager->pInJournal!=0) == isOpen(pPager->jfd) );
-  if( pPager->pInJournal!=0
-   && tdsqlite3BitvecTestNotNull(pPager->pInJournal, pPg->pgno)==0
-  ){
-    assert( pagerUseWal(pPager)==0 );
-    if( pPg->pgno<=pPager->dbOrigSize ){
-      rc = pagerAddPageToRollbackJournal(pPg);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-    }else{
-      if( pPager->eState!=PAGER_WRITER_DBMOD ){
-        pPg->flags |= PGHDR_NEED_SYNC;
-      }
-      PAGERTRACE(("APPEND %d page %d needSync=%d\n",
-              PAGERID(pPager), pPg->pgno,
-             ((pPg->flags&PGHDR_NEED_SYNC)?1:0)));
-    }
-  }
-
-  /* The PGHDR_DIRTY bit is set above when the page was added to the dirty-list
-  ** and before writing the page into the rollback journal.  Wait until now,
-  ** after the page has been successfully journalled, before setting the
-  ** PGHDR_WRITEABLE bit that indicates that the page can be safely modified.
-  */
-  pPg->flags |= PGHDR_WRITEABLE;
-  
-  /* If the statement journal is open and the page is not in it,
-  ** then write the page into the statement journal.
-  */
-  if( pPager->nSavepoint>0 ){
-    rc = subjournalPageIfRequired(pPg);
-  }
-
-  /* Update the database size and return. */
-  if( pPager->dbSize<pPg->pgno ){
-    pPager->dbSize = pPg->pgno;
-  }
-  return rc;
-}
-
-/*
-** This is a variant of tdsqlite3PagerWrite() that runs when the sector size
-** is larger than the page size.  SQLite makes the (reasonable) assumption that
-** all bytes of a sector are written together by hardware.  Hence, all bytes of
-** a sector need to be journalled in case of a power loss in the middle of
-** a write.
-**
-** Usually, the sector size is less than or equal to the page size, in which
-** case pages can be individually written.  This routine only runs in the
-** exceptional case where the page size is smaller than the sector size.
-*/
-static SQLITE_NOINLINE int pagerWriteLargeSector(PgHdr *pPg){
-  int rc = SQLITE_OK;          /* Return code */
-  Pgno nPageCount;             /* Total number of pages in database file */
-  Pgno pg1;                    /* First page of the sector pPg is located on. */
-  int nPage = 0;               /* Number of pages starting at pg1 to journal */
-  int ii;                      /* Loop counter */
-  int needSync = 0;            /* True if any page has PGHDR_NEED_SYNC */
-  Pager *pPager = pPg->pPager; /* The pager that owns pPg */
-  Pgno nPagePerSector = (pPager->sectorSize/pPager->pageSize);
-
-  /* Set the doNotSpill NOSYNC bit to 1. This is because we cannot allow
-  ** a journal header to be written between the pages journaled by
-  ** this function.
-  */
-  assert( !MEMDB );
-  assert( (pPager->doNotSpill & SPILLFLAG_NOSYNC)==0 );
-  pPager->doNotSpill |= SPILLFLAG_NOSYNC;
-
-  /* This trick assumes that both the page-size and sector-size are
-  ** an integer power of 2. It sets variable pg1 to the identifier
-  ** of the first page of the sector pPg is located on.
-  */
-  pg1 = ((pPg->pgno-1) & ~(nPagePerSector-1)) + 1;
-
-  nPageCount = pPager->dbSize;
-  if( pPg->pgno>nPageCount ){
-    nPage = (pPg->pgno - pg1)+1;
-  }else if( (pg1+nPagePerSector-1)>nPageCount ){
-    nPage = nPageCount+1-pg1;
-  }else{
-    nPage = nPagePerSector;
-  }
-  assert(nPage>0);
-  assert(pg1<=pPg->pgno);
-  assert((pg1+nPage)>pPg->pgno);
-
-  for(ii=0; ii<nPage && rc==SQLITE_OK; ii++){
-    Pgno pg = pg1+ii;
-    PgHdr *pPage;
-    if( pg==pPg->pgno || !tdsqlite3BitvecTest(pPager->pInJournal, pg) ){
-      if( pg!=PAGER_MJ_PGNO(pPager) ){
-        rc = tdsqlite3PagerGet(pPager, pg, &pPage, 0);
-        if( rc==SQLITE_OK ){
-          rc = pager_write(pPage);
-          if( pPage->flags&PGHDR_NEED_SYNC ){
-            needSync = 1;
-          }
-          tdsqlite3PagerUnrefNotNull(pPage);
-        }
-      }
-    }else if( (pPage = tdsqlite3PagerLookup(pPager, pg))!=0 ){
-      if( pPage->flags&PGHDR_NEED_SYNC ){
-        needSync = 1;
-      }
-      tdsqlite3PagerUnrefNotNull(pPage);
-    }
-  }
-
-  /* If the PGHDR_NEED_SYNC flag is set for any of the nPage pages 
-  ** starting at pg1, then it needs to be set for all of them. Because
-  ** writing to any of these nPage pages may damage the others, the
-  ** journal file must contain sync()ed copies of all of them
-  ** before any of them can be written out to the database file.
-  */
-  if( rc==SQLITE_OK && needSync ){
-    assert( !MEMDB );
-    for(ii=0; ii<nPage; ii++){
-      PgHdr *pPage = tdsqlite3PagerLookup(pPager, pg1+ii);
-      if( pPage ){
-        pPage->flags |= PGHDR_NEED_SYNC;
-        tdsqlite3PagerUnrefNotNull(pPage);
-      }
-    }
-  }
-
-  assert( (pPager->doNotSpill & SPILLFLAG_NOSYNC)!=0 );
-  pPager->doNotSpill &= ~SPILLFLAG_NOSYNC;
-  return rc;
-}
-
-/*
-** Mark a data page as writeable. This routine must be called before 
-** making changes to a page. The caller must check the return value 
-** of this function and be careful not to change any page data unless 
-** this routine returns SQLITE_OK.
-**
-** The difference between this function and pager_write() is that this
-** function also deals with the special case where 2 or more pages
-** fit on a single disk sector. In this case all co-resident pages
-** must have been written to the journal file before returning.
-**
-** If an error occurs, SQLITE_NOMEM or an IO error code is returned
-** as appropriate. Otherwise, SQLITE_OK.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerWrite(PgHdr *pPg){
-  Pager *pPager = pPg->pPager;
-  assert( (pPg->flags & PGHDR_MMAP)==0 );
-  assert( pPager->eState>=PAGER_WRITER_LOCKED );
-  assert( assert_pager_state(pPager) );
-  if( (pPg->flags & PGHDR_WRITEABLE)!=0 && pPager->dbSize>=pPg->pgno ){
-    if( pPager->nSavepoint ) return subjournalPageIfRequired(pPg);
-    return SQLITE_OK;
-  }else if( pPager->errCode ){
-    return pPager->errCode;
-  }else if( pPager->sectorSize > (u32)pPager->pageSize ){
-    assert( pPager->tempFile==0 );
-    return pagerWriteLargeSector(pPg);
-  }else{
-    return pager_write(pPg);
-  }
-}
-
-/*
-** Return TRUE if the page given in the argument was previously passed
-** to tdsqlite3PagerWrite().  In other words, return TRUE if it is ok
-** to change the content of the page.
-*/
-#ifndef NDEBUG
-SQLITE_PRIVATE int tdsqlite3PagerIswriteable(DbPage *pPg){
-  return pPg->flags & PGHDR_WRITEABLE;
-}
-#endif
-
-/*
-** A call to this routine tells the pager that it is not necessary to
-** write the information on page pPg back to the disk, even though
-** that page might be marked as dirty.  This happens, for example, when
-** the page has been added as a leaf of the freelist and so its
-** content no longer matters.
-**
-** The overlying software layer calls this routine when all of the data
-** on the given page is unused. The pager marks the page as clean so
-** that it does not get written to disk.
-**
-** Tests show that this optimization can quadruple the speed of large 
-** DELETE operations.
-**
-** This optimization cannot be used with a temp-file, as the page may
-** have been dirty at the start of the transaction. In that case, if
-** memory pressure forces page pPg out of the cache, the data does need 
-** to be written out to disk so that it may be read back in if the 
-** current transaction is rolled back.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerDontWrite(PgHdr *pPg){
-  Pager *pPager = pPg->pPager;
-  if( !pPager->tempFile && (pPg->flags&PGHDR_DIRTY) && pPager->nSavepoint==0 ){
-    PAGERTRACE(("DONT_WRITE page %d of %d\n", pPg->pgno, PAGERID(pPager)));
-    IOTRACE(("CLEAN %p %d\n", pPager, pPg->pgno))
-    pPg->flags |= PGHDR_DONT_WRITE;
-    pPg->flags &= ~PGHDR_WRITEABLE;
-    testcase( pPg->flags & PGHDR_NEED_SYNC );
-    pager_set_pagehash(pPg);
-  }
-}
-
-/*
-** This routine is called to increment the value of the database file 
-** change-counter, stored as a 4-byte big-endian integer starting at 
-** byte offset 24 of the pager file.  The secondary change counter at
-** 92 is also updated, as is the SQLite version number at offset 96.
-**
-** But this only happens if the pPager->changeCountDone flag is false.
-** To avoid excess churning of page 1, the update only happens once.
-** See also the pager_write_changecounter() routine that does an 
-** unconditional update of the change counters.
-**
-** If the isDirectMode flag is zero, then this is done by calling 
-** tdsqlite3PagerWrite() on page 1, then modifying the contents of the
-** page data. In this case the file will be updated when the current
-** transaction is committed.
-**
-** The isDirectMode flag may only be non-zero if the library was compiled
-** with the SQLITE_ENABLE_ATOMIC_WRITE macro defined. In this case,
-** if isDirect is non-zero, then the database file is updated directly
-** by writing an updated version of page 1 using a call to the 
-** tdsqlite3OsWrite() function.
-*/
-static int pager_incr_changecounter(Pager *pPager, int isDirectMode){
-  int rc = SQLITE_OK;
-
-  assert( pPager->eState==PAGER_WRITER_CACHEMOD
-       || pPager->eState==PAGER_WRITER_DBMOD
-  );
-  assert( assert_pager_state(pPager) );
-
-  /* Declare and initialize constant integer 'isDirect'. If the
-  ** atomic-write optimization is enabled in this build, then isDirect
-  ** is initialized to the value passed as the isDirectMode parameter
-  ** to this function. Otherwise, it is always set to zero.
-  **
-  ** The idea is that if the atomic-write optimization is not
-  ** enabled at compile time, the compiler can omit the tests of
-  ** 'isDirect' below, as well as the block enclosed in the
-  ** "if( isDirect )" condition.
-  */
-#ifndef SQLITE_ENABLE_ATOMIC_WRITE
-# define DIRECT_MODE 0
-  assert( isDirectMode==0 );
-  UNUSED_PARAMETER(isDirectMode);
-#else
-# define DIRECT_MODE isDirectMode
-#endif
-
-  if( !pPager->changeCountDone && ALWAYS(pPager->dbSize>0) ){
-    PgHdr *pPgHdr;                /* Reference to page 1 */
-
-    assert( !pPager->tempFile && isOpen(pPager->fd) );
-
-    /* Open page 1 of the file for writing. */
-    rc = tdsqlite3PagerGet(pPager, 1, &pPgHdr, 0);
-    assert( pPgHdr==0 || rc==SQLITE_OK );
-
-    /* If page one was fetched successfully, and this function is not
-    ** operating in direct-mode, make page 1 writable.  When not in 
-    ** direct mode, page 1 is always held in cache and hence the PagerGet()
-    ** above is always successful - hence the ALWAYS on rc==SQLITE_OK.
-    */
-    if( !DIRECT_MODE && ALWAYS(rc==SQLITE_OK) ){
-      rc = tdsqlite3PagerWrite(pPgHdr);
-    }
-
-    if( rc==SQLITE_OK ){
-      /* Actually do the update of the change counter */
-      pager_write_changecounter(pPgHdr);
-
-      /* If running in direct mode, write the contents of page 1 to the file. */
-      if( DIRECT_MODE ){
-        const void *zBuf;
-        assert( pPager->dbFileSize>0 );
-        CODEC2(pPager, pPgHdr->pData, 1, 6, rc=SQLITE_NOMEM_BKPT, zBuf);
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3OsWrite(pPager->fd, zBuf, pPager->pageSize, 0);
-          pPager->aStat[PAGER_STAT_WRITE]++;
-        }
-        if( rc==SQLITE_OK ){
-          /* Update the pager's copy of the change-counter. Otherwise, the
-          ** next time a read transaction is opened the cache will be
-          ** flushed (as the change-counter values will not match).  */
-          const void *pCopy = (const void *)&((const char *)zBuf)[24];
-          memcpy(&pPager->dbFileVers, pCopy, sizeof(pPager->dbFileVers));
-          pPager->changeCountDone = 1;
-        }
-      }else{
-        pPager->changeCountDone = 1;
-      }
-    }
-
-    /* Release the page reference. */
-    tdsqlite3PagerUnref(pPgHdr);
-  }
-  return rc;
-}
-
-/*
-** Sync the database file to disk. This is a no-op for in-memory databases
-** or pages with the Pager.noSync flag set.
-**
-** If successful, or if called on a pager for which it is a no-op, this
-** function returns SQLITE_OK. Otherwise, an IO error code is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSync(Pager *pPager, const char *zMaster){
-  int rc = SQLITE_OK;
-  void *pArg = (void*)zMaster;
-  rc = tdsqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_SYNC, pArg);
-  if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
-  if( rc==SQLITE_OK && !pPager->noSync ){
-    assert( !MEMDB );
-    rc = tdsqlite3OsSync(pPager->fd, pPager->syncFlags);
-  }
-  return rc;
-}
-
-/*
-** This function may only be called while a write-transaction is active in
-** rollback. If the connection is in WAL mode, this call is a no-op. 
-** Otherwise, if the connection does not already have an EXCLUSIVE lock on 
-** the database file, an attempt is made to obtain one.
-**
-** If the EXCLUSIVE lock is already held or the attempt to obtain it is
-** successful, or the connection is in WAL mode, SQLITE_OK is returned.
-** Otherwise, either SQLITE_BUSY or an SQLITE_IOERR_XXX error code is 
-** returned.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerExclusiveLock(Pager *pPager){
-  int rc = pPager->errCode;
-  assert( assert_pager_state(pPager) );
-  if( rc==SQLITE_OK ){
-    assert( pPager->eState==PAGER_WRITER_CACHEMOD 
-         || pPager->eState==PAGER_WRITER_DBMOD 
-         || pPager->eState==PAGER_WRITER_LOCKED 
-    );
-    assert( assert_pager_state(pPager) );
-    if( 0==pagerUseWal(pPager) ){
-      rc = pager_wait_on_lock(pPager, EXCLUSIVE_LOCK);
-    }
-  }
-  return rc;
-}
-
-/*
-** Sync the database file for the pager pPager. zMaster points to the name
-** of a master journal file that should be written into the individual
-** journal file. zMaster may be NULL, which is interpreted as no master
-** journal (a single database transaction).
-**
-** This routine ensures that:
-**
-**   * The database file change-counter is updated,
-**   * the journal is synced (unless the atomic-write optimization is used),
-**   * all dirty pages are written to the database file, 
-**   * the database file is truncated (if required), and
-**   * the database file synced. 
-**
-** The only thing that remains to commit the transaction is to finalize 
-** (delete, truncate or zero the first part of) the journal file (or 
-** delete the master journal file if specified).
-**
-** Note that if zMaster==NULL, this does not overwrite a previous value
-** passed to an tdsqlite3PagerCommitPhaseOne() call.
-**
-** If the final parameter - noSync - is true, then the database file itself
-** is not synced. The caller must call tdsqlite3PagerSync() directly to
-** sync the database file before calling CommitPhaseTwo() to delete the
-** journal file in this case.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerCommitPhaseOne(
-  Pager *pPager,                  /* Pager object */
-  const char *zMaster,            /* If not NULL, the master journal name */
-  int noSync                      /* True to omit the xSync on the db file */
-){
-  int rc = SQLITE_OK;             /* Return code */
-
-  assert( pPager->eState==PAGER_WRITER_LOCKED
-       || pPager->eState==PAGER_WRITER_CACHEMOD
-       || pPager->eState==PAGER_WRITER_DBMOD
-       || pPager->eState==PAGER_ERROR
-  );
-  assert( assert_pager_state(pPager) );
-
-  /* If a prior error occurred, report that error again. */
-  if( NEVER(pPager->errCode) ) return pPager->errCode;
-
-  /* Provide the ability to easily simulate an I/O error during testing */
-  if( tdsqlite3FaultSim(400) ) return SQLITE_IOERR;
-
-  PAGERTRACE(("DATABASE SYNC: File=%s zMaster=%s nSize=%d\n", 
-      pPager->zFilename, zMaster, pPager->dbSize));
-
-  /* If no database changes have been made, return early. */
-  if( pPager->eState<PAGER_WRITER_CACHEMOD ) return SQLITE_OK;
-
-  assert( MEMDB==0 || pPager->tempFile );
-  assert( isOpen(pPager->fd) || pPager->tempFile );
-  if( 0==pagerFlushOnCommit(pPager, 1) ){
-    /* If this is an in-memory db, or no pages have been written to, or this
-    ** function has already been called, it is mostly a no-op.  However, any
-    ** backup in progress needs to be restarted.  */
-    tdsqlite3BackupRestart(pPager->pBackup);
-  }else{
-    PgHdr *pList;
-    if( pagerUseWal(pPager) ){
-      PgHdr *pPageOne = 0;
-      pList = tdsqlite3PcacheDirtyList(pPager->pPCache);
-      if( pList==0 ){
-        /* Must have at least one page for the WAL commit flag.
-        ** Ticket [2d1a5c67dfc2363e44f29d9bbd57f] 2011-05-18 */
-        rc = tdsqlite3PagerGet(pPager, 1, &pPageOne, 0);
-        pList = pPageOne;
-        pList->pDirty = 0;
-      }
-      assert( rc==SQLITE_OK );
-      if( ALWAYS(pList) ){
-        rc = pagerWalFrames(pPager, pList, pPager->dbSize, 1);
-      }
-      tdsqlite3PagerUnref(pPageOne);
-      if( rc==SQLITE_OK ){
-        tdsqlite3PcacheCleanAll(pPager->pPCache);
-      }
-    }else{
-      /* The bBatch boolean is true if the batch-atomic-write commit method
-      ** should be used.  No rollback journal is created if batch-atomic-write
-      ** is enabled.
-      */
-#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-      tdsqlite3_file *fd = pPager->fd;
-      int bBatch = zMaster==0    /* An SQLITE_IOCAP_BATCH_ATOMIC commit */
-        && (tdsqlite3OsDeviceCharacteristics(fd) & SQLITE_IOCAP_BATCH_ATOMIC)
-        && !pPager->noSync
-        && tdsqlite3JournalIsInMemory(pPager->jfd);
-#else
-#     define bBatch 0
-#endif
-
-#ifdef SQLITE_ENABLE_ATOMIC_WRITE
-      /* The following block updates the change-counter. Exactly how it
-      ** does this depends on whether or not the atomic-update optimization
-      ** was enabled at compile time, and if this transaction meets the 
-      ** runtime criteria to use the operation: 
-      **
-      **    * The file-system supports the atomic-write property for
-      **      blocks of size page-size, and 
-      **    * This commit is not part of a multi-file transaction, and
-      **    * Exactly one page has been modified and store in the journal file.
-      **
-      ** If the optimization was not enabled at compile time, then the
-      ** pager_incr_changecounter() function is called to update the change
-      ** counter in 'indirect-mode'. If the optimization is compiled in but
-      ** is not applicable to this transaction, call tdsqlite3JournalCreate()
-      ** to make sure the journal file has actually been created, then call
-      ** pager_incr_changecounter() to update the change-counter in indirect
-      ** mode. 
-      **
-      ** Otherwise, if the optimization is both enabled and applicable,
-      ** then call pager_incr_changecounter() to update the change-counter
-      ** in 'direct' mode. In this case the journal file will never be
-      ** created for this transaction.
-      */
-      if( bBatch==0 ){
-        PgHdr *pPg;
-        assert( isOpen(pPager->jfd) 
-            || pPager->journalMode==PAGER_JOURNALMODE_OFF 
-            || pPager->journalMode==PAGER_JOURNALMODE_WAL 
-            );
-        if( !zMaster && isOpen(pPager->jfd) 
-         && pPager->journalOff==jrnlBufferSize(pPager) 
-         && pPager->dbSize>=pPager->dbOrigSize
-         && (!(pPg = tdsqlite3PcacheDirtyList(pPager->pPCache)) || 0==pPg->pDirty)
-        ){
-          /* Update the db file change counter via the direct-write method. The 
-          ** following call will modify the in-memory representation of page 1 
-          ** to include the updated change counter and then write page 1 
-          ** directly to the database file. Because of the atomic-write 
-          ** property of the host file-system, this is safe.
-          */
-          rc = pager_incr_changecounter(pPager, 1);
-        }else{
-          rc = tdsqlite3JournalCreate(pPager->jfd);
-          if( rc==SQLITE_OK ){
-            rc = pager_incr_changecounter(pPager, 0);
-          }
-        }
-      }
-#else  /* SQLITE_ENABLE_ATOMIC_WRITE */
-#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-      if( zMaster ){
-        rc = tdsqlite3JournalCreate(pPager->jfd);
-        if( rc!=SQLITE_OK ) goto commit_phase_one_exit;
-        assert( bBatch==0 );
-      }
-#endif
-      rc = pager_incr_changecounter(pPager, 0);
-#endif /* !SQLITE_ENABLE_ATOMIC_WRITE */
-      if( rc!=SQLITE_OK ) goto commit_phase_one_exit;
-  
-      /* Write the master journal name into the journal file. If a master 
-      ** journal file name has already been written to the journal file, 
-      ** or if zMaster is NULL (no master journal), then this call is a no-op.
-      */
-      rc = writeMasterJournal(pPager, zMaster);
-      if( rc!=SQLITE_OK ) goto commit_phase_one_exit;
-  
-      /* Sync the journal file and write all dirty pages to the database.
-      ** If the atomic-update optimization is being used, this sync will not 
-      ** create the journal file or perform any real IO.
-      **
-      ** Because the change-counter page was just modified, unless the
-      ** atomic-update optimization is used it is almost certain that the
-      ** journal requires a sync here. However, in locking_mode=exclusive
-      ** on a system under memory pressure it is just possible that this is 
-      ** not the case. In this case it is likely enough that the redundant
-      ** xSync() call will be changed to a no-op by the OS anyhow. 
-      */
-      rc = syncJournal(pPager, 0);
-      if( rc!=SQLITE_OK ) goto commit_phase_one_exit;
-
-      pList = tdsqlite3PcacheDirtyList(pPager->pPCache);
-#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-      if( bBatch ){
-        rc = tdsqlite3OsFileControl(fd, SQLITE_FCNTL_BEGIN_ATOMIC_WRITE, 0);
-        if( rc==SQLITE_OK ){
-          rc = pager_write_pagelist(pPager, pList);
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3OsFileControl(fd, SQLITE_FCNTL_COMMIT_ATOMIC_WRITE, 0);
-          }
-          if( rc!=SQLITE_OK ){
-            tdsqlite3OsFileControlHint(fd, SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE, 0);
-          }
-        }
-
-        if( (rc&0xFF)==SQLITE_IOERR && rc!=SQLITE_IOERR_NOMEM ){
-          rc = tdsqlite3JournalCreate(pPager->jfd);
-          if( rc!=SQLITE_OK ){
-            tdsqlite3OsClose(pPager->jfd);
-            goto commit_phase_one_exit;
-          }
-          bBatch = 0;
-        }else{
-          tdsqlite3OsClose(pPager->jfd);
-        }
-      }
-#endif /* SQLITE_ENABLE_BATCH_ATOMIC_WRITE */
-
-      if( bBatch==0 ){
-        rc = pager_write_pagelist(pPager, pList);
-      }
-      if( rc!=SQLITE_OK ){
-        assert( rc!=SQLITE_IOERR_BLOCKED );
-        goto commit_phase_one_exit;
-      }
-      tdsqlite3PcacheCleanAll(pPager->pPCache);
-
-      /* If the file on disk is smaller than the database image, use 
-      ** pager_truncate to grow the file here. This can happen if the database
-      ** image was extended as part of the current transaction and then the
-      ** last page in the db image moved to the free-list. In this case the
-      ** last page is never written out to disk, leaving the database file
-      ** undersized. Fix this now if it is the case.  */
-      if( pPager->dbSize>pPager->dbFileSize ){
-        Pgno nNew = pPager->dbSize - (pPager->dbSize==PAGER_MJ_PGNO(pPager));
-        assert( pPager->eState==PAGER_WRITER_DBMOD );
-        rc = pager_truncate(pPager, nNew);
-        if( rc!=SQLITE_OK ) goto commit_phase_one_exit;
-      }
-  
-      /* Finally, sync the database file. */
-      if( !noSync ){
-        rc = tdsqlite3PagerSync(pPager, zMaster);
-      }
-      IOTRACE(("DBSYNC %p\n", pPager))
-    }
-  }
-
-commit_phase_one_exit:
-  if( rc==SQLITE_OK && !pagerUseWal(pPager) ){
-    pPager->eState = PAGER_WRITER_FINISHED;
-  }
-  return rc;
-}
-
-
-/*
-** When this function is called, the database file has been completely
-** updated to reflect the changes made by the current transaction and
-** synced to disk. The journal file still exists in the file-system 
-** though, and if a failure occurs at this point it will eventually
-** be used as a hot-journal and the current transaction rolled back.
-**
-** This function finalizes the journal file, either by deleting, 
-** truncating or partially zeroing it, so that it cannot be used 
-** for hot-journal rollback. Once this is done the transaction is
-** irrevocably committed.
-**
-** If an error occurs, an IO error code is returned and the pager
-** moves into the error state. Otherwise, SQLITE_OK is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerCommitPhaseTwo(Pager *pPager){
-  int rc = SQLITE_OK;                  /* Return code */
-
-  /* This routine should not be called if a prior error has occurred.
-  ** But if (due to a coding error elsewhere in the system) it does get
-  ** called, just return the same error code without doing anything. */
-  if( NEVER(pPager->errCode) ) return pPager->errCode;
-  pPager->iDataVersion++;
-
-  assert( pPager->eState==PAGER_WRITER_LOCKED
-       || pPager->eState==PAGER_WRITER_FINISHED
-       || (pagerUseWal(pPager) && pPager->eState==PAGER_WRITER_CACHEMOD)
-  );
-  assert( assert_pager_state(pPager) );
-
-  /* An optimization. If the database was not actually modified during
-  ** this transaction, the pager is running in exclusive-mode and is
-  ** using persistent journals, then this function is a no-op.
-  **
-  ** The start of the journal file currently contains a single journal 
-  ** header with the nRec field set to 0. If such a journal is used as
-  ** a hot-journal during hot-journal rollback, 0 changes will be made
-  ** to the database file. So there is no need to zero the journal 
-  ** header. Since the pager is in exclusive mode, there is no need
-  ** to drop any locks either.
-  */
-  if( pPager->eState==PAGER_WRITER_LOCKED 
-   && pPager->exclusiveMode 
-   && pPager->journalMode==PAGER_JOURNALMODE_PERSIST
-  ){
-    assert( pPager->journalOff==JOURNAL_HDR_SZ(pPager) || !pPager->journalOff );
-    pPager->eState = PAGER_READER;
-    return SQLITE_OK;
-  }
-
-  PAGERTRACE(("COMMIT %d\n", PAGERID(pPager)));
-  rc = pager_end_transaction(pPager, pPager->setMaster, 1);
-  return pager_error(pPager, rc);
-}
-
-/*
-** If a write transaction is open, then all changes made within the 
-** transaction are reverted and the current write-transaction is closed.
-** The pager falls back to PAGER_READER state if successful, or PAGER_ERROR
-** state if an error occurs.
-**
-** If the pager is already in PAGER_ERROR state when this function is called,
-** it returns Pager.errCode immediately. No work is performed in this case.
-**
-** Otherwise, in rollback mode, this function performs two functions:
-**
-**   1) It rolls back the journal file, restoring all database file and 
-**      in-memory cache pages to the state they were in when the transaction
-**      was opened, and
-**
-**   2) It finalizes the journal file, so that it is not used for hot
-**      rollback at any point in the future.
-**
-** Finalization of the journal file (task 2) is only performed if the 
-** rollback is successful.
-**
-** In WAL mode, all cache-entries containing data modified within the
-** current transaction are either expelled from the cache or reverted to
-** their pre-transaction state by re-reading data from the database or
-** WAL files. The WAL transaction is then closed.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerRollback(Pager *pPager){
-  int rc = SQLITE_OK;                  /* Return code */
-  PAGERTRACE(("ROLLBACK %d\n", PAGERID(pPager)));
-
-  /* PagerRollback() is a no-op if called in READER or OPEN state. If
-  ** the pager is already in the ERROR state, the rollback is not 
-  ** attempted here. Instead, the error code is returned to the caller.
-  */
-  assert( assert_pager_state(pPager) );
-  if( pPager->eState==PAGER_ERROR ) return pPager->errCode;
-  if( pPager->eState<=PAGER_READER ) return SQLITE_OK;
-
-  if( pagerUseWal(pPager) ){
-    int rc2;
-    rc = tdsqlite3PagerSavepoint(pPager, SAVEPOINT_ROLLBACK, -1);
-    rc2 = pager_end_transaction(pPager, pPager->setMaster, 0);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }else if( !isOpen(pPager->jfd) || pPager->eState==PAGER_WRITER_LOCKED ){
-    int eState = pPager->eState;
-    rc = pager_end_transaction(pPager, 0, 0);
-    if( !MEMDB && eState>PAGER_WRITER_LOCKED ){
-      /* This can happen using journal_mode=off. Move the pager to the error 
-      ** state to indicate that the contents of the cache may not be trusted.
-      ** Any active readers will get SQLITE_ABORT.
-      */
-      pPager->errCode = SQLITE_ABORT;
-      pPager->eState = PAGER_ERROR;
-      setGetterMethod(pPager);
-      return rc;
-    }
-  }else{
-    rc = pager_playback(pPager, 0);
-  }
-
-  assert( pPager->eState==PAGER_READER || rc!=SQLITE_OK );
-  assert( rc==SQLITE_OK || rc==SQLITE_FULL || rc==SQLITE_CORRUPT
-          || rc==SQLITE_NOMEM || (rc&0xFF)==SQLITE_IOERR 
-          || rc==SQLITE_CANTOPEN
-  );
-
-  /* If an error occurs during a ROLLBACK, we can no longer trust the pager
-  ** cache. So call pager_error() on the way out to make any error persistent.
-  */
-  return pager_error(pPager, rc);
-}
-
-/*
-** Return TRUE if the database file is opened read-only.  Return FALSE
-** if the database is (in theory) writable.
-*/
-SQLITE_PRIVATE u8 tdsqlite3PagerIsreadonly(Pager *pPager){
-  return pPager->readOnly;
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Return the sum of the reference counts for all pages held by pPager.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerRefcount(Pager *pPager){
-  return tdsqlite3PcacheRefCount(pPager->pPCache);
-}
-#endif
-
-/*
-** Return the approximate number of bytes of memory currently
-** used by the pager and its associated cache.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerMemUsed(Pager *pPager){
-  int perPageSize = pPager->pageSize + pPager->nExtra + sizeof(PgHdr)
-                                     + 5*sizeof(void*);
-  return perPageSize*tdsqlite3PcachePagecount(pPager->pPCache)
-           + tdsqlite3MallocSize(pPager)
-           + pPager->pageSize;
-}
-
-/*
-** Return the number of references to the specified page.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerPageRefcount(DbPage *pPage){
-  return tdsqlite3PcachePageRefcount(pPage);
-}
-
-#ifdef SQLITE_TEST
-/*
-** This routine is used for testing and analysis only.
-*/
-SQLITE_PRIVATE int *tdsqlite3PagerStats(Pager *pPager){
-  static int a[11];
-  a[0] = tdsqlite3PcacheRefCount(pPager->pPCache);
-  a[1] = tdsqlite3PcachePagecount(pPager->pPCache);
-  a[2] = tdsqlite3PcacheGetCachesize(pPager->pPCache);
-  a[3] = pPager->eState==PAGER_OPEN ? -1 : (int) pPager->dbSize;
-  a[4] = pPager->eState;
-  a[5] = pPager->errCode;
-  a[6] = pPager->aStat[PAGER_STAT_HIT];
-  a[7] = pPager->aStat[PAGER_STAT_MISS];
-  a[8] = 0;  /* Used to be pPager->nOvfl */
-  a[9] = pPager->nRead;
-  a[10] = pPager->aStat[PAGER_STAT_WRITE];
-  return a;
-}
-#endif
-
-/*
-** Parameter eStat must be one of SQLITE_DBSTATUS_CACHE_HIT, _MISS, _WRITE,
-** or _WRITE+1.  The SQLITE_DBSTATUS_CACHE_WRITE+1 case is a translation
-** of SQLITE_DBSTATUS_CACHE_SPILL.  The _SPILL case is not contiguous because
-** it was added later.
-**
-** Before returning, *pnVal is incremented by the
-** current cache hit or miss count, according to the value of eStat. If the 
-** reset parameter is non-zero, the cache hit or miss count is zeroed before 
-** returning.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerCacheStat(Pager *pPager, int eStat, int reset, int *pnVal){
-
-  assert( eStat==SQLITE_DBSTATUS_CACHE_HIT
-       || eStat==SQLITE_DBSTATUS_CACHE_MISS
-       || eStat==SQLITE_DBSTATUS_CACHE_WRITE
-       || eStat==SQLITE_DBSTATUS_CACHE_WRITE+1
-  );
-
-  assert( SQLITE_DBSTATUS_CACHE_HIT+1==SQLITE_DBSTATUS_CACHE_MISS );
-  assert( SQLITE_DBSTATUS_CACHE_HIT+2==SQLITE_DBSTATUS_CACHE_WRITE );
-  assert( PAGER_STAT_HIT==0 && PAGER_STAT_MISS==1
-           && PAGER_STAT_WRITE==2 && PAGER_STAT_SPILL==3 );
-
-  eStat -= SQLITE_DBSTATUS_CACHE_HIT;
-  *pnVal += pPager->aStat[eStat];
-  if( reset ){
-    pPager->aStat[eStat] = 0;
-  }
-}
-
-/*
-** Return true if this is an in-memory or temp-file backed pager.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerIsMemdb(Pager *pPager){
-  return pPager->tempFile;
-}
-
-/*
-** Check that there are at least nSavepoint savepoints open. If there are
-** currently less than nSavepoints open, then open one or more savepoints
-** to make up the difference. If the number of savepoints is already
-** equal to nSavepoint, then this function is a no-op.
-**
-** If a memory allocation fails, SQLITE_NOMEM is returned. If an error 
-** occurs while opening the sub-journal file, then an IO error code is
-** returned. Otherwise, SQLITE_OK.
-*/
-static SQLITE_NOINLINE int pagerOpenSavepoint(Pager *pPager, int nSavepoint){
-  int rc = SQLITE_OK;                       /* Return code */
-  int nCurrent = pPager->nSavepoint;        /* Current number of savepoints */
-  int ii;                                   /* Iterator variable */
-  PagerSavepoint *aNew;                     /* New Pager.aSavepoint array */
-
-  assert( pPager->eState>=PAGER_WRITER_LOCKED );
-  assert( assert_pager_state(pPager) );
-  assert( nSavepoint>nCurrent && pPager->useJournal );
-
-  /* Grow the Pager.aSavepoint array using realloc(). Return SQLITE_NOMEM
-  ** if the allocation fails. Otherwise, zero the new portion in case a 
-  ** malloc failure occurs while populating it in the for(...) loop below.
-  */
-  aNew = (PagerSavepoint *)tdsqlite3Realloc(
-      pPager->aSavepoint, sizeof(PagerSavepoint)*nSavepoint
-  );
-  if( !aNew ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  memset(&aNew[nCurrent], 0, (nSavepoint-nCurrent) * sizeof(PagerSavepoint));
-  pPager->aSavepoint = aNew;
-
-  /* Populate the PagerSavepoint structures just allocated. */
-  for(ii=nCurrent; ii<nSavepoint; ii++){
-    aNew[ii].nOrig = pPager->dbSize;
-    if( isOpen(pPager->jfd) && pPager->journalOff>0 ){
-      aNew[ii].iOffset = pPager->journalOff;
-    }else{
-      aNew[ii].iOffset = JOURNAL_HDR_SZ(pPager);
-    }
-    aNew[ii].iSubRec = pPager->nSubRec;
-    aNew[ii].pInSavepoint = tdsqlite3BitvecCreate(pPager->dbSize);
-    if( !aNew[ii].pInSavepoint ){
-      return SQLITE_NOMEM_BKPT;
-    }
-    if( pagerUseWal(pPager) ){
-      tdsqlite3WalSavepoint(pPager->pWal, aNew[ii].aWalData);
-    }
-    pPager->nSavepoint = ii+1;
-  }
-  assert( pPager->nSavepoint==nSavepoint );
-  assertTruncateConstraint(pPager);
-  return rc;
-}
-SQLITE_PRIVATE int tdsqlite3PagerOpenSavepoint(Pager *pPager, int nSavepoint){
-  assert( pPager->eState>=PAGER_WRITER_LOCKED );
-  assert( assert_pager_state(pPager) );
-
-  if( nSavepoint>pPager->nSavepoint && pPager->useJournal ){
-    return pagerOpenSavepoint(pPager, nSavepoint);
-  }else{
-    return SQLITE_OK;
-  }
-}
-
-
-/*
-** This function is called to rollback or release (commit) a savepoint.
-** The savepoint to release or rollback need not be the most recently 
-** created savepoint.
-**
-** Parameter op is always either SAVEPOINT_ROLLBACK or SAVEPOINT_RELEASE.
-** If it is SAVEPOINT_RELEASE, then release and destroy the savepoint with
-** index iSavepoint. If it is SAVEPOINT_ROLLBACK, then rollback all changes
-** that have occurred since the specified savepoint was created.
-**
-** The savepoint to rollback or release is identified by parameter 
-** iSavepoint. A value of 0 means to operate on the outermost savepoint
-** (the first created). A value of (Pager.nSavepoint-1) means operate
-** on the most recently created savepoint. If iSavepoint is greater than
-** (Pager.nSavepoint-1), then this function is a no-op.
-**
-** If a negative value is passed to this function, then the current
-** transaction is rolled back. This is different to calling 
-** tdsqlite3PagerRollback() because this function does not terminate
-** the transaction or unlock the database, it just restores the 
-** contents of the database to its original state. 
-**
-** In any case, all savepoints with an index greater than iSavepoint 
-** are destroyed. If this is a release operation (op==SAVEPOINT_RELEASE),
-** then savepoint iSavepoint is also destroyed.
-**
-** This function may return SQLITE_NOMEM if a memory allocation fails,
-** or an IO error code if an IO error occurs while rolling back a 
-** savepoint. If no errors occur, SQLITE_OK is returned.
-*/ 
-SQLITE_PRIVATE int tdsqlite3PagerSavepoint(Pager *pPager, int op, int iSavepoint){
-  int rc = pPager->errCode;
-  
-#ifdef SQLITE_ENABLE_ZIPVFS
-  if( op==SAVEPOINT_RELEASE ) rc = SQLITE_OK;
-#endif
-
-  assert( op==SAVEPOINT_RELEASE || op==SAVEPOINT_ROLLBACK );
-  assert( iSavepoint>=0 || op==SAVEPOINT_ROLLBACK );
-
-  if( rc==SQLITE_OK && iSavepoint<pPager->nSavepoint ){
-    int ii;            /* Iterator variable */
-    int nNew;          /* Number of remaining savepoints after this op. */
-
-    /* Figure out how many savepoints will still be active after this
-    ** operation. Store this value in nNew. Then free resources associated 
-    ** with any savepoints that are destroyed by this operation.
-    */
-    nNew = iSavepoint + (( op==SAVEPOINT_RELEASE ) ? 0 : 1);
-    for(ii=nNew; ii<pPager->nSavepoint; ii++){
-      tdsqlite3BitvecDestroy(pPager->aSavepoint[ii].pInSavepoint);
-    }
-    pPager->nSavepoint = nNew;
-
-    /* If this is a release of the outermost savepoint, truncate 
-    ** the sub-journal to zero bytes in size. */
-    if( op==SAVEPOINT_RELEASE ){
-      if( nNew==0 && isOpen(pPager->sjfd) ){
-        /* Only truncate if it is an in-memory sub-journal. */
-        if( tdsqlite3JournalIsInMemory(pPager->sjfd) ){
-          rc = tdsqlite3OsTruncate(pPager->sjfd, 0);
-          assert( rc==SQLITE_OK );
-        }
-        pPager->nSubRec = 0;
-      }
-    }
-    /* Else this is a rollback operation, playback the specified savepoint.
-    ** If this is a temp-file, it is possible that the journal file has
-    ** not yet been opened. In this case there have been no changes to
-    ** the database file, so the playback operation can be skipped.
-    */
-    else if( pagerUseWal(pPager) || isOpen(pPager->jfd) ){
-      PagerSavepoint *pSavepoint = (nNew==0)?0:&pPager->aSavepoint[nNew-1];
-      rc = pagerPlaybackSavepoint(pPager, pSavepoint);
-      assert(rc!=SQLITE_DONE);
-    }
-    
-#ifdef SQLITE_ENABLE_ZIPVFS
-    /* If the cache has been modified but the savepoint cannot be rolled 
-    ** back journal_mode=off, put the pager in the error state. This way,
-    ** if the VFS used by this pager includes ZipVFS, the entire transaction
-    ** can be rolled back at the ZipVFS level.  */
-    else if( 
-        pPager->journalMode==PAGER_JOURNALMODE_OFF 
-     && pPager->eState>=PAGER_WRITER_CACHEMOD
-    ){
-      pPager->errCode = SQLITE_ABORT;
-      pPager->eState = PAGER_ERROR;
-      setGetterMethod(pPager);
-    }
-#endif
-  }
-
-  return rc;
-}
-
-/*
-** Return the full pathname of the database file.
-**
-** Except, if the pager is in-memory only, then return an empty string if
-** nullIfMemDb is true.  This routine is called with nullIfMemDb==1 when
-** used to report the filename to the user, for compatibility with legacy
-** behavior.  But when the Btree needs to know the filename for matching to
-** shared cache, it uses nullIfMemDb==0 so that in-memory databases can
-** participate in shared-cache.
-**
-** The return value to this routine is always safe to use with
-** tdsqlite3_uri_parameter() and tdsqlite3_filename_database() and friends.
-*/
-SQLITE_PRIVATE const char *tdsqlite3PagerFilename(const Pager *pPager, int nullIfMemDb){
-  static const char zFake[] = { 0x00, 0x01, 0x00, 0x00, 0x00 };
-  return (nullIfMemDb && pPager->memDb) ? &zFake[3] : pPager->zFilename;
-}
-
-/*
-** Return the VFS structure for the pager.
-*/
-SQLITE_PRIVATE tdsqlite3_vfs *tdsqlite3PagerVfs(Pager *pPager){
-  return pPager->pVfs;
-}
-
-/*
-** Return the file handle for the database file associated
-** with the pager.  This might return NULL if the file has
-** not yet been opened.
-*/
-SQLITE_PRIVATE tdsqlite3_file *tdsqlite3PagerFile(Pager *pPager){
-  return pPager->fd;
-}
-
-#ifdef SQLITE_ENABLE_SETLK_TIMEOUT
-/*
-** Reset the lock timeout for pager.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerResetLockTimeout(Pager *pPager){
-  int x = 0;
-  tdsqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_LOCK_TIMEOUT, &x);
-}
-#endif
-
-/*
-** Return the file handle for the journal file (if it exists).
-** This will be either the rollback journal or the WAL file.
-*/
-SQLITE_PRIVATE tdsqlite3_file *tdsqlite3PagerJrnlFile(Pager *pPager){
-#if SQLITE_OMIT_WAL
-  return pPager->jfd;
-#else
-  return pPager->pWal ? tdsqlite3WalFile(pPager->pWal) : pPager->jfd;
-#endif
-}
-
-/*
-** Return the full pathname of the journal file.
-*/
-SQLITE_PRIVATE const char *tdsqlite3PagerJournalname(Pager *pPager){
-  return pPager->zJournal;
-}
-
-#ifdef SQLITE_HAS_CODEC
-/*
-** Set or retrieve the codec for this pager
-*/
-SQLITE_PRIVATE void tdsqlite3PagerSetCodec(
-  Pager *pPager,
-  void *(*xCodec)(void*,void*,Pgno,int),
-  void (*xCodecSizeChng)(void*,int,int),
-  void (*xCodecFree)(void*),
-  void *pCodec
-){
-  if( pPager->xCodecFree ){
-    pPager->xCodecFree(pPager->pCodec);
-  }else{
-    pager_reset(pPager);
-  }
-  pPager->xCodec = pPager->memDb ? 0 : xCodec;
-  pPager->xCodecSizeChng = xCodecSizeChng;
-  pPager->xCodecFree = xCodecFree;
-  pPager->pCodec = pCodec;
-  setGetterMethod(pPager);
-  pagerReportSize(pPager);
-}
-SQLITE_PRIVATE void *tdsqlite3PagerGetCodec(Pager *pPager){
-  return pPager->pCodec;
-}
-
-/*
-** This function is called by the wal module when writing page content
-** into the log file.
-**
-** This function returns a pointer to a buffer containing the encrypted
-** page content. If a malloc fails, this function may return NULL.
-*/
-SQLITE_PRIVATE void *tdsqlite3PagerCodec(PgHdr *pPg){
-  void *aData = 0;
-  CODEC2(pPg->pPager, pPg->pData, pPg->pgno, 6, return 0, aData);
-  return aData;
-}
-
-/*
-** Return the current pager state
-*/
-SQLITE_PRIVATE int tdsqlite3PagerState(Pager *pPager){
-  return pPager->eState;
-}
-#endif /* SQLITE_HAS_CODEC */
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-/*
-** Move the page pPg to location pgno in the file.
-**
-** There must be no references to the page previously located at
-** pgno (which we call pPgOld) though that page is allowed to be
-** in cache.  If the page previously located at pgno is not already
-** in the rollback journal, it is not put there by by this routine.
-**
-** References to the page pPg remain valid. Updating any
-** meta-data associated with pPg (i.e. data stored in the nExtra bytes
-** allocated along with the page) is the responsibility of the caller.
-**
-** A transaction must be active when this routine is called. It used to be
-** required that a statement transaction was not active, but this restriction
-** has been removed (CREATE INDEX needs to move a page when a statement
-** transaction is active).
-**
-** If the fourth argument, isCommit, is non-zero, then this page is being
-** moved as part of a database reorganization just before the transaction 
-** is being committed. In this case, it is guaranteed that the database page 
-** pPg refers to will not be written to again within this transaction.
-**
-** This function may return SQLITE_NOMEM or an IO error code if an error
-** occurs. Otherwise, it returns SQLITE_OK.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerMovepage(Pager *pPager, DbPage *pPg, Pgno pgno, int isCommit){
-  PgHdr *pPgOld;               /* The page being overwritten. */
-  Pgno needSyncPgno = 0;       /* Old value of pPg->pgno, if sync is required */
-  int rc;                      /* Return code */
-  Pgno origPgno;               /* The original page number */
-
-  assert( pPg->nRef>0 );
-  assert( pPager->eState==PAGER_WRITER_CACHEMOD
-       || pPager->eState==PAGER_WRITER_DBMOD
-  );
-  assert( assert_pager_state(pPager) );
-
-  /* In order to be able to rollback, an in-memory database must journal
-  ** the page we are moving from.
-  */
-  assert( pPager->tempFile || !MEMDB );
-  if( pPager->tempFile ){
-    rc = tdsqlite3PagerWrite(pPg);
-    if( rc ) return rc;
-  }
-
-  /* If the page being moved is dirty and has not been saved by the latest
-  ** savepoint, then save the current contents of the page into the 
-  ** sub-journal now. This is required to handle the following scenario:
-  **
-  **   BEGIN;
-  **     <journal page X, then modify it in memory>
-  **     SAVEPOINT one;
-  **       <Move page X to location Y>
-  **     ROLLBACK TO one;
-  **
-  ** If page X were not written to the sub-journal here, it would not
-  ** be possible to restore its contents when the "ROLLBACK TO one"
-  ** statement were is processed.
-  **
-  ** subjournalPage() may need to allocate space to store pPg->pgno into
-  ** one or more savepoint bitvecs. This is the reason this function
-  ** may return SQLITE_NOMEM.
-  */
-  if( (pPg->flags & PGHDR_DIRTY)!=0
-   && SQLITE_OK!=(rc = subjournalPageIfRequired(pPg))
-  ){
-    return rc;
-  }
-
-  PAGERTRACE(("MOVE %d page %d (needSync=%d) moves to %d\n", 
-      PAGERID(pPager), pPg->pgno, (pPg->flags&PGHDR_NEED_SYNC)?1:0, pgno));
-  IOTRACE(("MOVE %p %d %d\n", pPager, pPg->pgno, pgno))
-
-  /* If the journal needs to be sync()ed before page pPg->pgno can
-  ** be written to, store pPg->pgno in local variable needSyncPgno.
-  **
-  ** If the isCommit flag is set, there is no need to remember that
-  ** the journal needs to be sync()ed before database page pPg->pgno 
-  ** can be written to. The caller has already promised not to write to it.
-  */
-  if( (pPg->flags&PGHDR_NEED_SYNC) && !isCommit ){
-    needSyncPgno = pPg->pgno;
-    assert( pPager->journalMode==PAGER_JOURNALMODE_OFF ||
-            pageInJournal(pPager, pPg) || pPg->pgno>pPager->dbOrigSize );
-    assert( pPg->flags&PGHDR_DIRTY );
-  }
-
-  /* If the cache contains a page with page-number pgno, remove it
-  ** from its hash chain. Also, if the PGHDR_NEED_SYNC flag was set for 
-  ** page pgno before the 'move' operation, it needs to be retained 
-  ** for the page moved there.
-  */
-  pPg->flags &= ~PGHDR_NEED_SYNC;
-  pPgOld = tdsqlite3PagerLookup(pPager, pgno);
-  assert( !pPgOld || pPgOld->nRef==1 || CORRUPT_DB );
-  if( pPgOld ){
-    if( pPgOld->nRef>1 ){
-      tdsqlite3PagerUnrefNotNull(pPgOld);
-      return SQLITE_CORRUPT_BKPT;
-    }
-    pPg->flags |= (pPgOld->flags&PGHDR_NEED_SYNC);
-    if( pPager->tempFile ){
-      /* Do not discard pages from an in-memory database since we might
-      ** need to rollback later.  Just move the page out of the way. */
-      tdsqlite3PcacheMove(pPgOld, pPager->dbSize+1);
-    }else{
-      tdsqlite3PcacheDrop(pPgOld);
-    }
-  }
-
-  origPgno = pPg->pgno;
-  tdsqlite3PcacheMove(pPg, pgno);
-  tdsqlite3PcacheMakeDirty(pPg);
-
-  /* For an in-memory database, make sure the original page continues
-  ** to exist, in case the transaction needs to roll back.  Use pPgOld
-  ** as the original page since it has already been allocated.
-  */
-  if( pPager->tempFile && pPgOld ){
-    tdsqlite3PcacheMove(pPgOld, origPgno);
-    tdsqlite3PagerUnrefNotNull(pPgOld);
-  }
-
-  if( needSyncPgno ){
-    /* If needSyncPgno is non-zero, then the journal file needs to be 
-    ** sync()ed before any data is written to database file page needSyncPgno.
-    ** Currently, no such page exists in the page-cache and the 
-    ** "is journaled" bitvec flag has been set. This needs to be remedied by
-    ** loading the page into the pager-cache and setting the PGHDR_NEED_SYNC
-    ** flag.
-    **
-    ** If the attempt to load the page into the page-cache fails, (due
-    ** to a malloc() or IO failure), clear the bit in the pInJournal[]
-    ** array. Otherwise, if the page is loaded and written again in
-    ** this transaction, it may be written to the database file before
-    ** it is synced into the journal file. This way, it may end up in
-    ** the journal file twice, but that is not a problem.
-    */
-    PgHdr *pPgHdr;
-    rc = tdsqlite3PagerGet(pPager, needSyncPgno, &pPgHdr, 0);
-    if( rc!=SQLITE_OK ){
-      if( needSyncPgno<=pPager->dbOrigSize ){
-        assert( pPager->pTmpSpace!=0 );
-        tdsqlite3BitvecClear(pPager->pInJournal, needSyncPgno, pPager->pTmpSpace);
-      }
-      return rc;
-    }
-    pPgHdr->flags |= PGHDR_NEED_SYNC;
-    tdsqlite3PcacheMakeDirty(pPgHdr);
-    tdsqlite3PagerUnrefNotNull(pPgHdr);
-  }
-
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** The page handle passed as the first argument refers to a dirty page 
-** with a page number other than iNew. This function changes the page's 
-** page number to iNew and sets the value of the PgHdr.flags field to 
-** the value passed as the third parameter.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerRekey(DbPage *pPg, Pgno iNew, u16 flags){
-  assert( pPg->pgno!=iNew );
-  pPg->flags = flags;
-  tdsqlite3PcacheMove(pPg, iNew);
-}
-
-/*
-** Return a pointer to the data for the specified page.
-*/
-SQLITE_PRIVATE void *tdsqlite3PagerGetData(DbPage *pPg){
-  assert( pPg->nRef>0 || pPg->pPager->memDb );
-  return pPg->pData;
-}
-
-/*
-** Return a pointer to the Pager.nExtra bytes of "extra" space 
-** allocated along with the specified page.
-*/
-SQLITE_PRIVATE void *tdsqlite3PagerGetExtra(DbPage *pPg){
-  return pPg->pExtra;
-}
-
-/*
-** Get/set the locking-mode for this pager. Parameter eMode must be one
-** of PAGER_LOCKINGMODE_QUERY, PAGER_LOCKINGMODE_NORMAL or 
-** PAGER_LOCKINGMODE_EXCLUSIVE. If the parameter is not _QUERY, then
-** the locking-mode is set to the value specified.
-**
-** The returned value is either PAGER_LOCKINGMODE_NORMAL or
-** PAGER_LOCKINGMODE_EXCLUSIVE, indicating the current (possibly updated)
-** locking-mode.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerLockingMode(Pager *pPager, int eMode){
-  assert( eMode==PAGER_LOCKINGMODE_QUERY
-            || eMode==PAGER_LOCKINGMODE_NORMAL
-            || eMode==PAGER_LOCKINGMODE_EXCLUSIVE );
-  assert( PAGER_LOCKINGMODE_QUERY<0 );
-  assert( PAGER_LOCKINGMODE_NORMAL>=0 && PAGER_LOCKINGMODE_EXCLUSIVE>=0 );
-  assert( pPager->exclusiveMode || 0==tdsqlite3WalHeapMemory(pPager->pWal) );
-  if( eMode>=0 && !pPager->tempFile && !tdsqlite3WalHeapMemory(pPager->pWal) ){
-    pPager->exclusiveMode = (u8)eMode;
-  }
-  return (int)pPager->exclusiveMode;
-}
-
-/*
-** Set the journal-mode for this pager. Parameter eMode must be one of:
-**
-**    PAGER_JOURNALMODE_DELETE
-**    PAGER_JOURNALMODE_TRUNCATE
-**    PAGER_JOURNALMODE_PERSIST
-**    PAGER_JOURNALMODE_OFF
-**    PAGER_JOURNALMODE_MEMORY
-**    PAGER_JOURNALMODE_WAL
-**
-** The journalmode is set to the value specified if the change is allowed.
-** The change may be disallowed for the following reasons:
-**
-**   *  An in-memory database can only have its journal_mode set to _OFF
-**      or _MEMORY.
-**
-**   *  Temporary databases cannot have _WAL journalmode.
-**
-** The returned indicate the current (possibly updated) journal-mode.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSetJournalMode(Pager *pPager, int eMode){
-  u8 eOld = pPager->journalMode;    /* Prior journalmode */
-
-  /* The eMode parameter is always valid */
-  assert(      eMode==PAGER_JOURNALMODE_DELETE
-            || eMode==PAGER_JOURNALMODE_TRUNCATE
-            || eMode==PAGER_JOURNALMODE_PERSIST
-            || eMode==PAGER_JOURNALMODE_OFF 
-            || eMode==PAGER_JOURNALMODE_WAL 
-            || eMode==PAGER_JOURNALMODE_MEMORY );
-
-  /* This routine is only called from the OP_JournalMode opcode, and
-  ** the logic there will never allow a temporary file to be changed
-  ** to WAL mode.
-  */
-  assert( pPager->tempFile==0 || eMode!=PAGER_JOURNALMODE_WAL );
-
-  /* Do allow the journalmode of an in-memory database to be set to
-  ** anything other than MEMORY or OFF
-  */
-  if( MEMDB ){
-    assert( eOld==PAGER_JOURNALMODE_MEMORY || eOld==PAGER_JOURNALMODE_OFF );
-    if( eMode!=PAGER_JOURNALMODE_MEMORY && eMode!=PAGER_JOURNALMODE_OFF ){
-      eMode = eOld;
-    }
-  }
-
-  if( eMode!=eOld ){
-
-    /* Change the journal mode. */
-    assert( pPager->eState!=PAGER_ERROR );
-    pPager->journalMode = (u8)eMode;
-
-    /* When transistioning from TRUNCATE or PERSIST to any other journal
-    ** mode except WAL, unless the pager is in locking_mode=exclusive mode,
-    ** delete the journal file.
-    */
-    assert( (PAGER_JOURNALMODE_TRUNCATE & 5)==1 );
-    assert( (PAGER_JOURNALMODE_PERSIST & 5)==1 );
-    assert( (PAGER_JOURNALMODE_DELETE & 5)==0 );
-    assert( (PAGER_JOURNALMODE_MEMORY & 5)==4 );
-    assert( (PAGER_JOURNALMODE_OFF & 5)==0 );
-    assert( (PAGER_JOURNALMODE_WAL & 5)==5 );
-
-    assert( isOpen(pPager->fd) || pPager->exclusiveMode );
-    if( !pPager->exclusiveMode && (eOld & 5)==1 && (eMode & 1)==0 ){
-
-      /* In this case we would like to delete the journal file. If it is
-      ** not possible, then that is not a problem. Deleting the journal file
-      ** here is an optimization only.
-      **
-      ** Before deleting the journal file, obtain a RESERVED lock on the
-      ** database file. This ensures that the journal file is not deleted
-      ** while it is in use by some other client.
-      */
-      tdsqlite3OsClose(pPager->jfd);
-      if( pPager->eLock>=RESERVED_LOCK ){
-        tdsqlite3OsDelete(pPager->pVfs, pPager->zJournal, 0);
-      }else{
-        int rc = SQLITE_OK;
-        int state = pPager->eState;
-        assert( state==PAGER_OPEN || state==PAGER_READER );
-        if( state==PAGER_OPEN ){
-          rc = tdsqlite3PagerSharedLock(pPager);
-        }
-        if( pPager->eState==PAGER_READER ){
-          assert( rc==SQLITE_OK );
-          rc = pagerLockDb(pPager, RESERVED_LOCK);
-        }
-        if( rc==SQLITE_OK ){
-          tdsqlite3OsDelete(pPager->pVfs, pPager->zJournal, 0);
-        }
-        if( rc==SQLITE_OK && state==PAGER_READER ){
-          pagerUnlockDb(pPager, SHARED_LOCK);
-        }else if( state==PAGER_OPEN ){
-          pager_unlock(pPager);
-        }
-        assert( state==pPager->eState );
-      }
-    }else if( eMode==PAGER_JOURNALMODE_OFF ){
-      tdsqlite3OsClose(pPager->jfd);
-    }
-  }
-
-  /* Return the new journal mode */
-  return (int)pPager->journalMode;
-}
-
-/*
-** Return the current journal mode.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerGetJournalMode(Pager *pPager){
-  return (int)pPager->journalMode;
-}
-
-/*
-** Return TRUE if the pager is in a state where it is OK to change the
-** journalmode.  Journalmode changes can only happen when the database
-** is unmodified.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerOkToChangeJournalMode(Pager *pPager){
-  assert( assert_pager_state(pPager) );
-  if( pPager->eState>=PAGER_WRITER_CACHEMOD ) return 0;
-  if( NEVER(isOpen(pPager->jfd) && pPager->journalOff>0) ) return 0;
-  return 1;
-}
-
-/*
-** Get/set the size-limit used for persistent journal files.
-**
-** Setting the size limit to -1 means no limit is enforced.
-** An attempt to set a limit smaller than -1 is a no-op.
-*/
-SQLITE_PRIVATE i64 tdsqlite3PagerJournalSizeLimit(Pager *pPager, i64 iLimit){
-  if( iLimit>=-1 ){
-    pPager->journalSizeLimit = iLimit;
-    tdsqlite3WalLimit(pPager->pWal, iLimit);
-  }
-  return pPager->journalSizeLimit;
-}
-
-/*
-** Return a pointer to the pPager->pBackup variable. The backup module
-** in backup.c maintains the content of this variable. This module
-** uses it opaquely as an argument to tdsqlite3BackupRestart() and
-** tdsqlite3BackupUpdate() only.
-*/
-SQLITE_PRIVATE tdsqlite3_backup **tdsqlite3PagerBackupPtr(Pager *pPager){
-  return &pPager->pBackup;
-}
-
-#ifndef SQLITE_OMIT_VACUUM
-/*
-** Unless this is an in-memory or temporary database, clear the pager cache.
-*/
-SQLITE_PRIVATE void tdsqlite3PagerClearCache(Pager *pPager){
-  assert( MEMDB==0 || pPager->tempFile );
-  if( pPager->tempFile==0 ) pager_reset(pPager);
-}
-#endif
-
-
-#ifndef SQLITE_OMIT_WAL
-/*
-** This function is called when the user invokes "PRAGMA wal_checkpoint",
-** "PRAGMA wal_blocking_checkpoint" or calls the tdsqlite3_wal_checkpoint()
-** or wal_blocking_checkpoint() API functions.
-**
-** Parameter eMode is one of SQLITE_CHECKPOINT_PASSIVE, FULL or RESTART.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerCheckpoint(
-  Pager *pPager,                  /* Checkpoint on this pager */
-  tdsqlite3 *db,                    /* Db handle used to check for interrupts */
-  int eMode,                      /* Type of checkpoint */
-  int *pnLog,                     /* OUT: Final number of frames in log */
-  int *pnCkpt                     /* OUT: Final number of checkpointed frames */
-){
-  int rc = SQLITE_OK;
-  if( pPager->pWal ){
-    rc = tdsqlite3WalCheckpoint(pPager->pWal, db, eMode,
-        (eMode==SQLITE_CHECKPOINT_PASSIVE ? 0 : pPager->xBusyHandler),
-        pPager->pBusyHandlerArg,
-        pPager->walSyncFlags, pPager->pageSize, (u8 *)pPager->pTmpSpace,
-        pnLog, pnCkpt
-    );
-    tdsqlite3PagerResetLockTimeout(pPager);
-  }
-  return rc;
-}
-
-SQLITE_PRIVATE int tdsqlite3PagerWalCallback(Pager *pPager){
-  return tdsqlite3WalCallback(pPager->pWal);
-}
-
-/*
-** Return true if the underlying VFS for the given pager supports the
-** primitives necessary for write-ahead logging.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerWalSupported(Pager *pPager){
-  const tdsqlite3_io_methods *pMethods = pPager->fd->pMethods;
-  if( pPager->noLock ) return 0;
-  return pPager->exclusiveMode || (pMethods->iVersion>=2 && pMethods->xShmMap);
-}
-
-/*
-** Attempt to take an exclusive lock on the database file. If a PENDING lock
-** is obtained instead, immediately release it.
-*/
-static int pagerExclusiveLock(Pager *pPager){
-  int rc;                         /* Return code */
-
-  assert( pPager->eLock==SHARED_LOCK || pPager->eLock==EXCLUSIVE_LOCK );
-  rc = pagerLockDb(pPager, EXCLUSIVE_LOCK);
-  if( rc!=SQLITE_OK ){
-    /* If the attempt to grab the exclusive lock failed, release the 
-    ** pending lock that may have been obtained instead.  */
-    pagerUnlockDb(pPager, SHARED_LOCK);
-  }
-
-  return rc;
-}
-
-/*
-** Call tdsqlite3WalOpen() to open the WAL handle. If the pager is in 
-** exclusive-locking mode when this function is called, take an EXCLUSIVE
-** lock on the database file and use heap-memory to store the wal-index
-** in. Otherwise, use the normal shared-memory.
-*/
-static int pagerOpenWal(Pager *pPager){
-  int rc = SQLITE_OK;
-
-  assert( pPager->pWal==0 && pPager->tempFile==0 );
-  assert( pPager->eLock==SHARED_LOCK || pPager->eLock==EXCLUSIVE_LOCK );
-
-  /* If the pager is already in exclusive-mode, the WAL module will use 
-  ** heap-memory for the wal-index instead of the VFS shared-memory 
-  ** implementation. Take the exclusive lock now, before opening the WAL
-  ** file, to make sure this is safe.
-  */
-  if( pPager->exclusiveMode ){
-    rc = pagerExclusiveLock(pPager);
-  }
-
-  /* Open the connection to the log file. If this operation fails, 
-  ** (e.g. due to malloc() failure), return an error code.
-  */
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3WalOpen(pPager->pVfs,
-        pPager->fd, pPager->zWal, pPager->exclusiveMode,
-        pPager->journalSizeLimit, &pPager->pWal
-    );
-  }
-  pagerFixMaplimit(pPager);
-
-  return rc;
-}
-
-
-/*
-** The caller must be holding a SHARED lock on the database file to call
-** this function.
-**
-** If the pager passed as the first argument is open on a real database
-** file (not a temp file or an in-memory database), and the WAL file
-** is not already open, make an attempt to open it now. If successful,
-** return SQLITE_OK. If an error occurs or the VFS used by the pager does 
-** not support the xShmXXX() methods, return an error code. *pbOpen is
-** not modified in either case.
-**
-** If the pager is open on a temp-file (or in-memory database), or if
-** the WAL file is already open, set *pbOpen to 1 and return SQLITE_OK
-** without doing anything.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerOpenWal(
-  Pager *pPager,                  /* Pager object */
-  int *pbOpen                     /* OUT: Set to true if call is a no-op */
-){
-  int rc = SQLITE_OK;             /* Return code */
-
-  assert( assert_pager_state(pPager) );
-  assert( pPager->eState==PAGER_OPEN   || pbOpen );
-  assert( pPager->eState==PAGER_READER || !pbOpen );
-  assert( pbOpen==0 || *pbOpen==0 );
-  assert( pbOpen!=0 || (!pPager->tempFile && !pPager->pWal) );
-
-  if( !pPager->tempFile && !pPager->pWal ){
-    if( !tdsqlite3PagerWalSupported(pPager) ) return SQLITE_CANTOPEN;
-
-    /* Close any rollback journal previously open */
-    tdsqlite3OsClose(pPager->jfd);
-
-    rc = pagerOpenWal(pPager);
-    if( rc==SQLITE_OK ){
-      pPager->journalMode = PAGER_JOURNALMODE_WAL;
-      pPager->eState = PAGER_OPEN;
-    }
-  }else{
-    *pbOpen = 1;
-  }
-
-  return rc;
-}
-
-/*
-** This function is called to close the connection to the log file prior
-** to switching from WAL to rollback mode.
-**
-** Before closing the log file, this function attempts to take an 
-** EXCLUSIVE lock on the database file. If this cannot be obtained, an
-** error (SQLITE_BUSY) is returned and the log connection is not closed.
-** If successful, the EXCLUSIVE lock is not released before returning.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerCloseWal(Pager *pPager, tdsqlite3 *db){
-  int rc = SQLITE_OK;
-
-  assert( pPager->journalMode==PAGER_JOURNALMODE_WAL );
-
-  /* If the log file is not already open, but does exist in the file-system,
-  ** it may need to be checkpointed before the connection can switch to
-  ** rollback mode. Open it now so this can happen.
-  */
-  if( !pPager->pWal ){
-    int logexists = 0;
-    rc = pagerLockDb(pPager, SHARED_LOCK);
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3OsAccess(
-          pPager->pVfs, pPager->zWal, SQLITE_ACCESS_EXISTS, &logexists
-      );
-    }
-    if( rc==SQLITE_OK && logexists ){
-      rc = pagerOpenWal(pPager);
-    }
-  }
-    
-  /* Checkpoint and close the log. Because an EXCLUSIVE lock is held on
-  ** the database file, the log and log-summary files will be deleted.
-  */
-  if( rc==SQLITE_OK && pPager->pWal ){
-    rc = pagerExclusiveLock(pPager);
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3WalClose(pPager->pWal, db, pPager->walSyncFlags,
-                           pPager->pageSize, (u8*)pPager->pTmpSpace);
-      pPager->pWal = 0;
-      pagerFixMaplimit(pPager);
-      if( rc && !pPager->exclusiveMode ) pagerUnlockDb(pPager, SHARED_LOCK);
-    }
-  }
-  return rc;
-}
-
-
-
-#ifdef SQLITE_ENABLE_SNAPSHOT
-/*
-** If this is a WAL database, obtain a snapshot handle for the snapshot
-** currently open. Otherwise, return an error.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSnapshotGet(Pager *pPager, tdsqlite3_snapshot **ppSnapshot){
-  int rc = SQLITE_ERROR;
-  if( pPager->pWal ){
-    rc = tdsqlite3WalSnapshotGet(pPager->pWal, ppSnapshot);
-  }
-  return rc;
-}
-
-/*
-** If this is a WAL database, store a pointer to pSnapshot. Next time a
-** read transaction is opened, attempt to read from the snapshot it 
-** identifies. If this is not a WAL database, return an error.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSnapshotOpen(Pager *pPager, tdsqlite3_snapshot *pSnapshot){
-  int rc = SQLITE_OK;
-  if( pPager->pWal ){
-    tdsqlite3WalSnapshotOpen(pPager->pWal, pSnapshot);
-  }else{
-    rc = SQLITE_ERROR;
-  }
-  return rc;
-}
-
-/*
-** If this is a WAL database, call tdsqlite3WalSnapshotRecover(). If this 
-** is not a WAL database, return an error.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSnapshotRecover(Pager *pPager){
-  int rc;
-  if( pPager->pWal ){
-    rc = tdsqlite3WalSnapshotRecover(pPager->pWal);
-  }else{
-    rc = SQLITE_ERROR;
-  }
-  return rc;
-}
-
-/*
-** The caller currently has a read transaction open on the database.
-** If this is not a WAL database, SQLITE_ERROR is returned. Otherwise,
-** this function takes a SHARED lock on the CHECKPOINTER slot and then
-** checks if the snapshot passed as the second argument is still 
-** available. If so, SQLITE_OK is returned.
-**
-** If the snapshot is not available, SQLITE_ERROR is returned. Or, if
-** the CHECKPOINTER lock cannot be obtained, SQLITE_BUSY. If any error
-** occurs (any value other than SQLITE_OK is returned), the CHECKPOINTER
-** lock is released before returning.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerSnapshotCheck(Pager *pPager, tdsqlite3_snapshot *pSnapshot){
-  int rc;
-  if( pPager->pWal ){
-    rc = tdsqlite3WalSnapshotCheck(pPager->pWal, pSnapshot);
-  }else{
-    rc = SQLITE_ERROR;
-  }
-  return rc;
-}
-
-/*
-** Release a lock obtained by an earlier successful call to
-** tdsqlite3PagerSnapshotCheck().
-*/
-SQLITE_PRIVATE void tdsqlite3PagerSnapshotUnlock(Pager *pPager){
-  assert( pPager->pWal );
-  tdsqlite3WalSnapshotUnlock(pPager->pWal);
-}
-
-#endif /* SQLITE_ENABLE_SNAPSHOT */
-#endif /* !SQLITE_OMIT_WAL */
-
-#ifdef SQLITE_ENABLE_ZIPVFS
-/*
-** A read-lock must be held on the pager when this function is called. If
-** the pager is in WAL mode and the WAL file currently contains one or more
-** frames, return the size in bytes of the page images stored within the
-** WAL frames. Otherwise, if this is not a WAL database or the WAL file
-** is empty, return 0.
-*/
-SQLITE_PRIVATE int tdsqlite3PagerWalFramesize(Pager *pPager){
-  assert( pPager->eState>=PAGER_READER );
-  return tdsqlite3WalFramesize(pPager->pWal);
-}
-#endif
-
-#endif /* SQLITE_OMIT_DISKIO */
-
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-
-SQLITE_API int tdsqlite3pager_is_mj_pgno(Pager *pPager, Pgno pgno) {
-  return (PAGER_MJ_PGNO(pPager) == pgno) ? 1 : 0;
-}
-
-SQLITE_API void tdsqlite3pager_error(Pager *pPager, int error) {
-  pPager->errCode = error;
-  pPager->eState = PAGER_ERROR;
-  setGetterMethod(pPager);
-}
-
-SQLITE_API void tdsqlite3pager_reset(Pager *pPager){
-  pager_reset(pPager);
-}
-
-#endif
-/* END SQLCIPHER */
-
-
-/************** End of pager.c ***********************************************/
-/************** Begin file wal.c *********************************************/
-/*
-** 2010 February 1
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains the implementation of a write-ahead log (WAL) used in 
-** "journal_mode=WAL" mode.
-**
-** WRITE-AHEAD LOG (WAL) FILE FORMAT
-**
-** A WAL file consists of a header followed by zero or more "frames".
-** Each frame records the revised content of a single page from the
-** database file.  All changes to the database are recorded by writing
-** frames into the WAL.  Transactions commit when a frame is written that
-** contains a commit marker.  A single WAL can and usually does record 
-** multiple transactions.  Periodically, the content of the WAL is
-** transferred back into the database file in an operation called a
-** "checkpoint".
-**
-** A single WAL file can be used multiple times.  In other words, the
-** WAL can fill up with frames and then be checkpointed and then new
-** frames can overwrite the old ones.  A WAL always grows from beginning
-** toward the end.  Checksums and counters attached to each frame are
-** used to determine which frames within the WAL are valid and which
-** are leftovers from prior checkpoints.
-**
-** The WAL header is 32 bytes in size and consists of the following eight
-** big-endian 32-bit unsigned integer values:
-**
-**     0: Magic number.  0x377f0682 or 0x377f0683
-**     4: File format version.  Currently 3007000
-**     8: Database page size.  Example: 1024
-**    12: Checkpoint sequence number
-**    16: Salt-1, random integer incremented with each checkpoint
-**    20: Salt-2, a different random integer changing with each ckpt
-**    24: Checksum-1 (first part of checksum for first 24 bytes of header).
-**    28: Checksum-2 (second part of checksum for first 24 bytes of header).
-**
-** Immediately following the wal-header are zero or more frames. Each
-** frame consists of a 24-byte frame-header followed by a <page-size> bytes
-** of page data. The frame-header is six big-endian 32-bit unsigned 
-** integer values, as follows:
-**
-**     0: Page number.
-**     4: For commit records, the size of the database image in pages 
-**        after the commit. For all other records, zero.
-**     8: Salt-1 (copied from the header)
-**    12: Salt-2 (copied from the header)
-**    16: Checksum-1.
-**    20: Checksum-2.
-**
-** A frame is considered valid if and only if the following conditions are
-** true:
-**
-**    (1) The salt-1 and salt-2 values in the frame-header match
-**        salt values in the wal-header
-**
-**    (2) The checksum values in the final 8 bytes of the frame-header
-**        exactly match the checksum computed consecutively on the
-**        WAL header and the first 8 bytes and the content of all frames
-**        up to and including the current frame.
-**
-** The checksum is computed using 32-bit big-endian integers if the
-** magic number in the first 4 bytes of the WAL is 0x377f0683 and it
-** is computed using little-endian if the magic number is 0x377f0682.
-** The checksum values are always stored in the frame header in a
-** big-endian format regardless of which byte order is used to compute
-** the checksum.  The checksum is computed by interpreting the input as
-** an even number of unsigned 32-bit integers: x[0] through x[N].  The
-** algorithm used for the checksum is as follows:
-** 
-**   for i from 0 to n-1 step 2:
-**     s0 += x[i] + s1;
-**     s1 += x[i+1] + s0;
-**   endfor
-**
-** Note that s0 and s1 are both weighted checksums using fibonacci weights
-** in reverse order (the largest fibonacci weight occurs on the first element
-** of the sequence being summed.)  The s1 value spans all 32-bit 
-** terms of the sequence whereas s0 omits the final term.
-**
-** On a checkpoint, the WAL is first VFS.xSync-ed, then valid content of the
-** WAL is transferred into the database, then the database is VFS.xSync-ed.
-** The VFS.xSync operations serve as write barriers - all writes launched
-** before the xSync must complete before any write that launches after the
-** xSync begins.
-**
-** After each checkpoint, the salt-1 value is incremented and the salt-2
-** value is randomized.  This prevents old and new frames in the WAL from
-** being considered valid at the same time and being checkpointing together
-** following a crash.
-**
-** READER ALGORITHM
-**
-** To read a page from the database (call it page number P), a reader
-** first checks the WAL to see if it contains page P.  If so, then the
-** last valid instance of page P that is a followed by a commit frame
-** or is a commit frame itself becomes the value read.  If the WAL
-** contains no copies of page P that are valid and which are a commit
-** frame or are followed by a commit frame, then page P is read from
-** the database file.
-**
-** To start a read transaction, the reader records the index of the last
-** valid frame in the WAL.  The reader uses this recorded "mxFrame" value
-** for all subsequent read operations.  New transactions can be appended
-** to the WAL, but as long as the reader uses its original mxFrame value
-** and ignores the newly appended content, it will see a consistent snapshot
-** of the database from a single point in time.  This technique allows
-** multiple concurrent readers to view different versions of the database
-** content simultaneously.
-**
-** The reader algorithm in the previous paragraphs works correctly, but 
-** because frames for page P can appear anywhere within the WAL, the
-** reader has to scan the entire WAL looking for page P frames.  If the
-** WAL is large (multiple megabytes is typical) that scan can be slow,
-** and read performance suffers.  To overcome this problem, a separate
-** data structure called the wal-index is maintained to expedite the
-** search for frames of a particular page.
-** 
-** WAL-INDEX FORMAT
-**
-** Conceptually, the wal-index is shared memory, though VFS implementations
-** might choose to implement the wal-index using a mmapped file.  Because
-** the wal-index is shared memory, SQLite does not support journal_mode=WAL 
-** on a network filesystem.  All users of the database must be able to
-** share memory.
-**
-** In the default unix and windows implementation, the wal-index is a mmapped
-** file whose name is the database name with a "-shm" suffix added.  For that
-** reason, the wal-index is sometimes called the "shm" file.
-**
-** The wal-index is transient.  After a crash, the wal-index can (and should
-** be) reconstructed from the original WAL file.  In fact, the VFS is required
-** to either truncate or zero the header of the wal-index when the last
-** connection to it closes.  Because the wal-index is transient, it can
-** use an architecture-specific format; it does not have to be cross-platform.
-** Hence, unlike the database and WAL file formats which store all values
-** as big endian, the wal-index can store multi-byte values in the native
-** byte order of the host computer.
-**
-** The purpose of the wal-index is to answer this question quickly:  Given
-** a page number P and a maximum frame index M, return the index of the 
-** last frame in the wal before frame M for page P in the WAL, or return
-** NULL if there are no frames for page P in the WAL prior to M.
-**
-** The wal-index consists of a header region, followed by an one or
-** more index blocks.  
-**
-** The wal-index header contains the total number of frames within the WAL
-** in the mxFrame field.
-**
-** Each index block except for the first contains information on 
-** HASHTABLE_NPAGE frames. The first index block contains information on
-** HASHTABLE_NPAGE_ONE frames. The values of HASHTABLE_NPAGE_ONE and 
-** HASHTABLE_NPAGE are selected so that together the wal-index header and
-** first index block are the same size as all other index blocks in the
-** wal-index.
-**
-** Each index block contains two sections, a page-mapping that contains the
-** database page number associated with each wal frame, and a hash-table 
-** that allows readers to query an index block for a specific page number.
-** The page-mapping is an array of HASHTABLE_NPAGE (or HASHTABLE_NPAGE_ONE
-** for the first index block) 32-bit page numbers. The first entry in the 
-** first index-block contains the database page number corresponding to the
-** first frame in the WAL file. The first entry in the second index block
-** in the WAL file corresponds to the (HASHTABLE_NPAGE_ONE+1)th frame in
-** the log, and so on.
-**
-** The last index block in a wal-index usually contains less than the full
-** complement of HASHTABLE_NPAGE (or HASHTABLE_NPAGE_ONE) page-numbers,
-** depending on the contents of the WAL file. This does not change the
-** allocated size of the page-mapping array - the page-mapping array merely
-** contains unused entries.
-**
-** Even without using the hash table, the last frame for page P
-** can be found by scanning the page-mapping sections of each index block
-** starting with the last index block and moving toward the first, and
-** within each index block, starting at the end and moving toward the
-** beginning.  The first entry that equals P corresponds to the frame
-** holding the content for that page.
-**
-** The hash table consists of HASHTABLE_NSLOT 16-bit unsigned integers.
-** HASHTABLE_NSLOT = 2*HASHTABLE_NPAGE, and there is one entry in the
-** hash table for each page number in the mapping section, so the hash 
-** table is never more than half full.  The expected number of collisions 
-** prior to finding a match is 1.  Each entry of the hash table is an
-** 1-based index of an entry in the mapping section of the same
-** index block.   Let K be the 1-based index of the largest entry in
-** the mapping section.  (For index blocks other than the last, K will
-** always be exactly HASHTABLE_NPAGE (4096) and for the last index block
-** K will be (mxFrame%HASHTABLE_NPAGE).)  Unused slots of the hash table
-** contain a value of 0.
-**
-** To look for page P in the hash table, first compute a hash iKey on
-** P as follows:
-**
-**      iKey = (P * 383) % HASHTABLE_NSLOT
-**
-** Then start scanning entries of the hash table, starting with iKey
-** (wrapping around to the beginning when the end of the hash table is
-** reached) until an unused hash slot is found. Let the first unused slot
-** be at index iUnused.  (iUnused might be less than iKey if there was
-** wrap-around.) Because the hash table is never more than half full,
-** the search is guaranteed to eventually hit an unused entry.  Let 
-** iMax be the value between iKey and iUnused, closest to iUnused,
-** where aHash[iMax]==P.  If there is no iMax entry (if there exists
-** no hash slot such that aHash[i]==p) then page P is not in the
-** current index block.  Otherwise the iMax-th mapping entry of the
-** current index block corresponds to the last entry that references 
-** page P.
-**
-** A hash search begins with the last index block and moves toward the
-** first index block, looking for entries corresponding to page P.  On
-** average, only two or three slots in each index block need to be
-** examined in order to either find the last entry for page P, or to
-** establish that no such entry exists in the block.  Each index block
-** holds over 4000 entries.  So two or three index blocks are sufficient
-** to cover a typical 10 megabyte WAL file, assuming 1K pages.  8 or 10
-** comparisons (on average) suffice to either locate a frame in the
-** WAL or to establish that the frame does not exist in the WAL.  This
-** is much faster than scanning the entire 10MB WAL.
-**
-** Note that entries are added in order of increasing K.  Hence, one
-** reader might be using some value K0 and a second reader that started
-** at a later time (after additional transactions were added to the WAL
-** and to the wal-index) might be using a different value K1, where K1>K0.
-** Both readers can use the same hash table and mapping section to get
-** the correct result.  There may be entries in the hash table with
-** K>K0 but to the first reader, those entries will appear to be unused
-** slots in the hash table and so the first reader will get an answer as
-** if no values greater than K0 had ever been inserted into the hash table
-** in the first place - which is what reader one wants.  Meanwhile, the
-** second reader using K1 will see additional values that were inserted
-** later, which is exactly what reader two wants.  
-**
-** When a rollback occurs, the value of K is decreased. Hash table entries
-** that correspond to frames greater than the new K value are removed
-** from the hash table at this point.
-*/
-#ifndef SQLITE_OMIT_WAL
-
-/* #include "wal.h" */
-
-/*
-** Trace output macros
-*/
-#if defined(SQLITE_TEST) && defined(SQLITE_DEBUG)
-SQLITE_PRIVATE int tdsqlite3WalTrace = 0;
-# define WALTRACE(X)  if(tdsqlite3WalTrace) tdsqlite3DebugPrintf X
-#else
-# define WALTRACE(X)
-#endif
-
-/*
-** WAL mode depends on atomic aligned 32-bit loads and stores in a few
-** places.  The following macros try to make this explicit.
-*/
-#if GCC_VESRION>=5004000
-# define AtomicLoad(PTR)       __atomic_load_n((PTR),__ATOMIC_RELAXED)
-# define AtomicStore(PTR,VAL)  __atomic_store_n((PTR),(VAL),__ATOMIC_RELAXED)
-#else
-# define AtomicLoad(PTR)       (*(PTR))
-# define AtomicStore(PTR,VAL)  (*(PTR) = (VAL))
-#endif
-
-/*
-** The maximum (and only) versions of the wal and wal-index formats
-** that may be interpreted by this version of SQLite.
-**
-** If a client begins recovering a WAL file and finds that (a) the checksum
-** values in the wal-header are correct and (b) the version field is not
-** WAL_MAX_VERSION, recovery fails and SQLite returns SQLITE_CANTOPEN.
-**
-** Similarly, if a client successfully reads a wal-index header (i.e. the 
-** checksum test is successful) and finds that the version field is not
-** WALINDEX_MAX_VERSION, then no read-transaction is opened and SQLite
-** returns SQLITE_CANTOPEN.
-*/
-#define WAL_MAX_VERSION      3007000
-#define WALINDEX_MAX_VERSION 3007000
-
-/*
-** Index numbers for various locking bytes.   WAL_NREADER is the number
-** of available reader locks and should be at least 3.  The default
-** is SQLITE_SHM_NLOCK==8 and  WAL_NREADER==5.
-**
-** Technically, the various VFSes are free to implement these locks however
-** they see fit.  However, compatibility is encouraged so that VFSes can
-** interoperate.  The standard implemention used on both unix and windows
-** is for the index number to indicate a byte offset into the
-** WalCkptInfo.aLock[] array in the wal-index header.  In other words, all
-** locks are on the shm file.  The WALINDEX_LOCK_OFFSET constant (which
-** should be 120) is the location in the shm file for the first locking
-** byte.
-*/
-#define WAL_WRITE_LOCK         0
-#define WAL_ALL_BUT_WRITE      1
-#define WAL_CKPT_LOCK          1
-#define WAL_RECOVER_LOCK       2
-#define WAL_READ_LOCK(I)       (3+(I))
-#define WAL_NREADER            (SQLITE_SHM_NLOCK-3)
-
-
-/* Object declarations */
-typedef struct WalIndexHdr WalIndexHdr;
-typedef struct WalIterator WalIterator;
-typedef struct WalCkptInfo WalCkptInfo;
-
-
-/*
-** The following object holds a copy of the wal-index header content.
-**
-** The actual header in the wal-index consists of two copies of this
-** object followed by one instance of the WalCkptInfo object.
-** For all versions of SQLite through 3.10.0 and probably beyond,
-** the locking bytes (WalCkptInfo.aLock) start at offset 120 and
-** the total header size is 136 bytes.
-**
-** The szPage value can be any power of 2 between 512 and 32768, inclusive.
-** Or it can be 1 to represent a 65536-byte page.  The latter case was
-** added in 3.7.1 when support for 64K pages was added.  
-*/
-struct WalIndexHdr {
-  u32 iVersion;                   /* Wal-index version */
-  u32 unused;                     /* Unused (padding) field */
-  u32 iChange;                    /* Counter incremented each transaction */
-  u8 isInit;                      /* 1 when initialized */
-  u8 bigEndCksum;                 /* True if checksums in WAL are big-endian */
-  u16 szPage;                     /* Database page size in bytes. 1==64K */
-  u32 mxFrame;                    /* Index of last valid frame in the WAL */
-  u32 nPage;                      /* Size of database in pages */
-  u32 aFrameCksum[2];             /* Checksum of last frame in log */
-  u32 aSalt[2];                   /* Two salt values copied from WAL header */
-  u32 aCksum[2];                  /* Checksum over all prior fields */
-};
-
-/*
-** A copy of the following object occurs in the wal-index immediately
-** following the second copy of the WalIndexHdr.  This object stores
-** information used by checkpoint.
-**
-** nBackfill is the number of frames in the WAL that have been written
-** back into the database. (We call the act of moving content from WAL to
-** database "backfilling".)  The nBackfill number is never greater than
-** WalIndexHdr.mxFrame.  nBackfill can only be increased by threads
-** holding the WAL_CKPT_LOCK lock (which includes a recovery thread).
-** However, a WAL_WRITE_LOCK thread can move the value of nBackfill from
-** mxFrame back to zero when the WAL is reset.
-**
-** nBackfillAttempted is the largest value of nBackfill that a checkpoint
-** has attempted to achieve.  Normally nBackfill==nBackfillAtempted, however
-** the nBackfillAttempted is set before any backfilling is done and the
-** nBackfill is only set after all backfilling completes.  So if a checkpoint
-** crashes, nBackfillAttempted might be larger than nBackfill.  The
-** WalIndexHdr.mxFrame must never be less than nBackfillAttempted.
-**
-** The aLock[] field is a set of bytes used for locking.  These bytes should
-** never be read or written.
-**
-** There is one entry in aReadMark[] for each reader lock.  If a reader
-** holds read-lock K, then the value in aReadMark[K] is no greater than
-** the mxFrame for that reader.  The value READMARK_NOT_USED (0xffffffff)
-** for any aReadMark[] means that entry is unused.  aReadMark[0] is 
-** a special case; its value is never used and it exists as a place-holder
-** to avoid having to offset aReadMark[] indexs by one.  Readers holding
-** WAL_READ_LOCK(0) always ignore the entire WAL and read all content
-** directly from the database.
-**
-** The value of aReadMark[K] may only be changed by a thread that
-** is holding an exclusive lock on WAL_READ_LOCK(K).  Thus, the value of
-** aReadMark[K] cannot changed while there is a reader is using that mark
-** since the reader will be holding a shared lock on WAL_READ_LOCK(K).
-**
-** The checkpointer may only transfer frames from WAL to database where
-** the frame numbers are less than or equal to every aReadMark[] that is
-** in use (that is, every aReadMark[j] for which there is a corresponding
-** WAL_READ_LOCK(j)).  New readers (usually) pick the aReadMark[] with the
-** largest value and will increase an unused aReadMark[] to mxFrame if there
-** is not already an aReadMark[] equal to mxFrame.  The exception to the
-** previous sentence is when nBackfill equals mxFrame (meaning that everything
-** in the WAL has been backfilled into the database) then new readers
-** will choose aReadMark[0] which has value 0 and hence such reader will
-** get all their all content directly from the database file and ignore 
-** the WAL.
-**
-** Writers normally append new frames to the end of the WAL.  However,
-** if nBackfill equals mxFrame (meaning that all WAL content has been
-** written back into the database) and if no readers are using the WAL
-** (in other words, if there are no WAL_READ_LOCK(i) where i>0) then
-** the writer will first "reset" the WAL back to the beginning and start
-** writing new content beginning at frame 1.
-**
-** We assume that 32-bit loads are atomic and so no locks are needed in
-** order to read from any aReadMark[] entries.
-*/
-struct WalCkptInfo {
-  u32 nBackfill;                  /* Number of WAL frames backfilled into DB */
-  u32 aReadMark[WAL_NREADER];     /* Reader marks */
-  u8 aLock[SQLITE_SHM_NLOCK];     /* Reserved space for locks */
-  u32 nBackfillAttempted;         /* WAL frames perhaps written, or maybe not */
-  u32 notUsed0;                   /* Available for future enhancements */
-};
-#define READMARK_NOT_USED  0xffffffff
-
-
-/* A block of WALINDEX_LOCK_RESERVED bytes beginning at
-** WALINDEX_LOCK_OFFSET is reserved for locks. Since some systems
-** only support mandatory file-locks, we do not read or write data
-** from the region of the file on which locks are applied.
-*/
-#define WALINDEX_LOCK_OFFSET (sizeof(WalIndexHdr)*2+offsetof(WalCkptInfo,aLock))
-#define WALINDEX_HDR_SIZE    (sizeof(WalIndexHdr)*2+sizeof(WalCkptInfo))
-
-/* Size of header before each frame in wal */
-#define WAL_FRAME_HDRSIZE 24
-
-/* Size of write ahead log header, including checksum. */
-#define WAL_HDRSIZE 32
-
-/* WAL magic value. Either this value, or the same value with the least
-** significant bit also set (WAL_MAGIC | 0x00000001) is stored in 32-bit
-** big-endian format in the first 4 bytes of a WAL file.
-**
-** If the LSB is set, then the checksums for each frame within the WAL
-** file are calculated by treating all data as an array of 32-bit 
-** big-endian words. Otherwise, they are calculated by interpreting 
-** all data as 32-bit little-endian words.
-*/
-#define WAL_MAGIC 0x377f0682
-
-/*
-** Return the offset of frame iFrame in the write-ahead log file, 
-** assuming a database page size of szPage bytes. The offset returned
-** is to the start of the write-ahead log frame-header.
-*/
-#define walFrameOffset(iFrame, szPage) (                               \
-  WAL_HDRSIZE + ((iFrame)-1)*(i64)((szPage)+WAL_FRAME_HDRSIZE)         \
-)
-
-/*
-** An open write-ahead log file is represented by an instance of the
-** following object.
-*/
-struct Wal {
-  tdsqlite3_vfs *pVfs;         /* The VFS used to create pDbFd */
-  tdsqlite3_file *pDbFd;       /* File handle for the database file */
-  tdsqlite3_file *pWalFd;      /* File handle for WAL file */
-  u32 iCallback;             /* Value to pass to log callback (or 0) */
-  i64 mxWalSize;             /* Truncate WAL to this size upon reset */
-  int nWiData;               /* Size of array apWiData */
-  int szFirstBlock;          /* Size of first block written to WAL file */
-  volatile u32 **apWiData;   /* Pointer to wal-index content in memory */
-  u32 szPage;                /* Database page size */
-  i16 readLock;              /* Which read lock is being held.  -1 for none */
-  u8 syncFlags;              /* Flags to use to sync header writes */
-  u8 exclusiveMode;          /* Non-zero if connection is in exclusive mode */
-  u8 writeLock;              /* True if in a write transaction */
-  u8 ckptLock;               /* True if holding a checkpoint lock */
-  u8 readOnly;               /* WAL_RDWR, WAL_RDONLY, or WAL_SHM_RDONLY */
-  u8 truncateOnCommit;       /* True to truncate WAL file on commit */
-  u8 syncHeader;             /* Fsync the WAL header if true */
-  u8 padToSectorBoundary;    /* Pad transactions out to the next sector */
-  u8 bShmUnreliable;         /* SHM content is read-only and unreliable */
-  WalIndexHdr hdr;           /* Wal-index header for current transaction */
-  u32 minFrame;              /* Ignore wal frames before this one */
-  u32 iReCksum;              /* On commit, recalculate checksums from here */
-  const char *zWalName;      /* Name of WAL file */
-  u32 nCkpt;                 /* Checkpoint sequence counter in the wal-header */
-#ifdef SQLITE_DEBUG
-  u8 lockError;              /* True if a locking error has occurred */
-#endif
-#ifdef SQLITE_ENABLE_SNAPSHOT
-  WalIndexHdr *pSnapshot;    /* Start transaction here if not NULL */
-#endif
-};
-
-/*
-** Candidate values for Wal.exclusiveMode.
-*/
-#define WAL_NORMAL_MODE     0
-#define WAL_EXCLUSIVE_MODE  1     
-#define WAL_HEAPMEMORY_MODE 2
-
-/*
-** Possible values for WAL.readOnly
-*/
-#define WAL_RDWR        0    /* Normal read/write connection */
-#define WAL_RDONLY      1    /* The WAL file is readonly */
-#define WAL_SHM_RDONLY  2    /* The SHM file is readonly */
-
-/*
-** Each page of the wal-index mapping contains a hash-table made up of
-** an array of HASHTABLE_NSLOT elements of the following type.
-*/
-typedef u16 ht_slot;
-
-/*
-** This structure is used to implement an iterator that loops through
-** all frames in the WAL in database page order. Where two or more frames
-** correspond to the same database page, the iterator visits only the 
-** frame most recently written to the WAL (in other words, the frame with
-** the largest index).
-**
-** The internals of this structure are only accessed by:
-**
-**   walIteratorInit() - Create a new iterator,
-**   walIteratorNext() - Step an iterator,
-**   walIteratorFree() - Free an iterator.
-**
-** This functionality is used by the checkpoint code (see walCheckpoint()).
-*/
-struct WalIterator {
-  int iPrior;                     /* Last result returned from the iterator */
-  int nSegment;                   /* Number of entries in aSegment[] */
-  struct WalSegment {
-    int iNext;                    /* Next slot in aIndex[] not yet returned */
-    ht_slot *aIndex;              /* i0, i1, i2... such that aPgno[iN] ascend */
-    u32 *aPgno;                   /* Array of page numbers. */
-    int nEntry;                   /* Nr. of entries in aPgno[] and aIndex[] */
-    int iZero;                    /* Frame number associated with aPgno[0] */
-  } aSegment[1];                  /* One for every 32KB page in the wal-index */
-};
-
-/*
-** Define the parameters of the hash tables in the wal-index file. There
-** is a hash-table following every HASHTABLE_NPAGE page numbers in the
-** wal-index.
-**
-** Changing any of these constants will alter the wal-index format and
-** create incompatibilities.
-*/
-#define HASHTABLE_NPAGE      4096                 /* Must be power of 2 */
-#define HASHTABLE_HASH_1     383                  /* Should be prime */
-#define HASHTABLE_NSLOT      (HASHTABLE_NPAGE*2)  /* Must be a power of 2 */
-
-/* 
-** The block of page numbers associated with the first hash-table in a
-** wal-index is smaller than usual. This is so that there is a complete
-** hash-table on each aligned 32KB page of the wal-index.
-*/
-#define HASHTABLE_NPAGE_ONE  (HASHTABLE_NPAGE - (WALINDEX_HDR_SIZE/sizeof(u32)))
-
-/* The wal-index is divided into pages of WALINDEX_PGSZ bytes each. */
-#define WALINDEX_PGSZ   (                                         \
-    sizeof(ht_slot)*HASHTABLE_NSLOT + HASHTABLE_NPAGE*sizeof(u32) \
-)
-
-/*
-** Obtain a pointer to the iPage'th page of the wal-index. The wal-index
-** is broken into pages of WALINDEX_PGSZ bytes. Wal-index pages are
-** numbered from zero.
-**
-** If the wal-index is currently smaller the iPage pages then the size
-** of the wal-index might be increased, but only if it is safe to do
-** so.  It is safe to enlarge the wal-index if pWal->writeLock is true
-** or pWal->exclusiveMode==WAL_HEAPMEMORY_MODE.
-**
-** If this call is successful, *ppPage is set to point to the wal-index
-** page and SQLITE_OK is returned. If an error (an OOM or VFS error) occurs,
-** then an SQLite error code is returned and *ppPage is set to 0.
-*/
-static SQLITE_NOINLINE int walIndexPageRealloc(
-  Wal *pWal,               /* The WAL context */
-  int iPage,               /* The page we seek */
-  volatile u32 **ppPage    /* Write the page pointer here */
-){
-  int rc = SQLITE_OK;
-
-  /* Enlarge the pWal->apWiData[] array if required */
-  if( pWal->nWiData<=iPage ){
-    tdsqlite3_int64 nByte = sizeof(u32*)*(iPage+1);
-    volatile u32 **apNew;
-    apNew = (volatile u32 **)tdsqlite3_realloc64((void *)pWal->apWiData, nByte);
-    if( !apNew ){
-      *ppPage = 0;
-      return SQLITE_NOMEM_BKPT;
-    }
-    memset((void*)&apNew[pWal->nWiData], 0,
-           sizeof(u32*)*(iPage+1-pWal->nWiData));
-    pWal->apWiData = apNew;
-    pWal->nWiData = iPage+1;
-  }
-
-  /* Request a pointer to the required page from the VFS */
-  assert( pWal->apWiData[iPage]==0 );
-  if( pWal->exclusiveMode==WAL_HEAPMEMORY_MODE ){
-    pWal->apWiData[iPage] = (u32 volatile *)tdsqlite3MallocZero(WALINDEX_PGSZ);
-    if( !pWal->apWiData[iPage] ) rc = SQLITE_NOMEM_BKPT;
-  }else{
-    rc = tdsqlite3OsShmMap(pWal->pDbFd, iPage, WALINDEX_PGSZ, 
-        pWal->writeLock, (void volatile **)&pWal->apWiData[iPage]
-    );
-    assert( pWal->apWiData[iPage]!=0 || rc!=SQLITE_OK || pWal->writeLock==0 );
-    testcase( pWal->apWiData[iPage]==0 && rc==SQLITE_OK );
-    if( (rc&0xff)==SQLITE_READONLY ){
-      pWal->readOnly |= WAL_SHM_RDONLY;
-      if( rc==SQLITE_READONLY ){
-        rc = SQLITE_OK;
-      }
-    }
-  }
-
-  *ppPage = pWal->apWiData[iPage];
-  assert( iPage==0 || *ppPage || rc!=SQLITE_OK );
-  return rc;
-}
-static int walIndexPage(
-  Wal *pWal,               /* The WAL context */
-  int iPage,               /* The page we seek */
-  volatile u32 **ppPage    /* Write the page pointer here */
-){
-  if( pWal->nWiData<=iPage || (*ppPage = pWal->apWiData[iPage])==0 ){
-    return walIndexPageRealloc(pWal, iPage, ppPage);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Return a pointer to the WalCkptInfo structure in the wal-index.
-*/
-static volatile WalCkptInfo *walCkptInfo(Wal *pWal){
-  assert( pWal->nWiData>0 && pWal->apWiData[0] );
-  return (volatile WalCkptInfo*)&(pWal->apWiData[0][sizeof(WalIndexHdr)/2]);
-}
-
-/*
-** Return a pointer to the WalIndexHdr structure in the wal-index.
-*/
-static volatile WalIndexHdr *walIndexHdr(Wal *pWal){
-  assert( pWal->nWiData>0 && pWal->apWiData[0] );
-  return (volatile WalIndexHdr*)pWal->apWiData[0];
-}
-
-/*
-** The argument to this macro must be of type u32. On a little-endian
-** architecture, it returns the u32 value that results from interpreting
-** the 4 bytes as a big-endian value. On a big-endian architecture, it
-** returns the value that would be produced by interpreting the 4 bytes
-** of the input value as a little-endian integer.
-*/
-#define BYTESWAP32(x) ( \
-    (((x)&0x000000FF)<<24) + (((x)&0x0000FF00)<<8)  \
-  + (((x)&0x00FF0000)>>8)  + (((x)&0xFF000000)>>24) \
-)
-
-/*
-** Generate or extend an 8 byte checksum based on the data in 
-** array aByte[] and the initial values of aIn[0] and aIn[1] (or
-** initial values of 0 and 0 if aIn==NULL).
-**
-** The checksum is written back into aOut[] before returning.
-**
-** nByte must be a positive multiple of 8.
-*/
-static void walChecksumBytes(
-  int nativeCksum, /* True for native byte-order, false for non-native */
-  u8 *a,           /* Content to be checksummed */
-  int nByte,       /* Bytes of content in a[].  Must be a multiple of 8. */
-  const u32 *aIn,  /* Initial checksum value input */
-  u32 *aOut        /* OUT: Final checksum value output */
-){
-  u32 s1, s2;
-  u32 *aData = (u32 *)a;
-  u32 *aEnd = (u32 *)&a[nByte];
-
-  if( aIn ){
-    s1 = aIn[0];
-    s2 = aIn[1];
-  }else{
-    s1 = s2 = 0;
-  }
-
-  assert( nByte>=8 );
-  assert( (nByte&0x00000007)==0 );
-  assert( nByte<=65536 );
-
-  if( nativeCksum ){
-    do {
-      s1 += *aData++ + s2;
-      s2 += *aData++ + s1;
-    }while( aData<aEnd );
-  }else{
-    do {
-      s1 += BYTESWAP32(aData[0]) + s2;
-      s2 += BYTESWAP32(aData[1]) + s1;
-      aData += 2;
-    }while( aData<aEnd );
-  }
-
-  aOut[0] = s1;
-  aOut[1] = s2;
-}
-
-static void walShmBarrier(Wal *pWal){
-  if( pWal->exclusiveMode!=WAL_HEAPMEMORY_MODE ){
-    tdsqlite3OsShmBarrier(pWal->pDbFd);
-  }
-}
-
-/*
-** Write the header information in pWal->hdr into the wal-index.
-**
-** The checksum on pWal->hdr is updated before it is written.
-*/
-static void walIndexWriteHdr(Wal *pWal){
-  volatile WalIndexHdr *aHdr = walIndexHdr(pWal);
-  const int nCksum = offsetof(WalIndexHdr, aCksum);
-
-  assert( pWal->writeLock );
-  pWal->hdr.isInit = 1;
-  pWal->hdr.iVersion = WALINDEX_MAX_VERSION;
-  walChecksumBytes(1, (u8*)&pWal->hdr, nCksum, 0, pWal->hdr.aCksum);
-  memcpy((void*)&aHdr[1], (const void*)&pWal->hdr, sizeof(WalIndexHdr));
-  walShmBarrier(pWal);
-  memcpy((void*)&aHdr[0], (const void*)&pWal->hdr, sizeof(WalIndexHdr));
-}
-
-/*
-** This function encodes a single frame header and writes it to a buffer
-** supplied by the caller. A frame-header is made up of a series of 
-** 4-byte big-endian integers, as follows:
-**
-**     0: Page number.
-**     4: For commit records, the size of the database image in pages 
-**        after the commit. For all other records, zero.
-**     8: Salt-1 (copied from the wal-header)
-**    12: Salt-2 (copied from the wal-header)
-**    16: Checksum-1.
-**    20: Checksum-2.
-*/
-static void walEncodeFrame(
-  Wal *pWal,                      /* The write-ahead log */
-  u32 iPage,                      /* Database page number for frame */
-  u32 nTruncate,                  /* New db size (or 0 for non-commit frames) */
-  u8 *aData,                      /* Pointer to page data */
-  u8 *aFrame                      /* OUT: Write encoded frame here */
-){
-  int nativeCksum;                /* True for native byte-order checksums */
-  u32 *aCksum = pWal->hdr.aFrameCksum;
-  assert( WAL_FRAME_HDRSIZE==24 );
-  tdsqlite3Put4byte(&aFrame[0], iPage);
-  tdsqlite3Put4byte(&aFrame[4], nTruncate);
-  if( pWal->iReCksum==0 ){
-    memcpy(&aFrame[8], pWal->hdr.aSalt, 8);
-
-    nativeCksum = (pWal->hdr.bigEndCksum==SQLITE_BIGENDIAN);
-    walChecksumBytes(nativeCksum, aFrame, 8, aCksum, aCksum);
-    walChecksumBytes(nativeCksum, aData, pWal->szPage, aCksum, aCksum);
-
-    tdsqlite3Put4byte(&aFrame[16], aCksum[0]);
-    tdsqlite3Put4byte(&aFrame[20], aCksum[1]);
-  }else{
-    memset(&aFrame[8], 0, 16);
-  }
-}
-
-/*
-** Check to see if the frame with header in aFrame[] and content
-** in aData[] is valid.  If it is a valid frame, fill *piPage and
-** *pnTruncate and return true.  Return if the frame is not valid.
-*/
-static int walDecodeFrame(
-  Wal *pWal,                      /* The write-ahead log */
-  u32 *piPage,                    /* OUT: Database page number for frame */
-  u32 *pnTruncate,                /* OUT: New db size (or 0 if not commit) */
-  u8 *aData,                      /* Pointer to page data (for checksum) */
-  u8 *aFrame                      /* Frame data */
-){
-  int nativeCksum;                /* True for native byte-order checksums */
-  u32 *aCksum = pWal->hdr.aFrameCksum;
-  u32 pgno;                       /* Page number of the frame */
-  assert( WAL_FRAME_HDRSIZE==24 );
-
-  /* A frame is only valid if the salt values in the frame-header
-  ** match the salt values in the wal-header. 
-  */
-  if( memcmp(&pWal->hdr.aSalt, &aFrame[8], 8)!=0 ){
-    return 0;
-  }
-
-  /* A frame is only valid if the page number is creater than zero.
-  */
-  pgno = tdsqlite3Get4byte(&aFrame[0]);
-  if( pgno==0 ){
-    return 0;
-  }
-
-  /* A frame is only valid if a checksum of the WAL header,
-  ** all prior frams, the first 16 bytes of this frame-header, 
-  ** and the frame-data matches the checksum in the last 8 
-  ** bytes of this frame-header.
-  */
-  nativeCksum = (pWal->hdr.bigEndCksum==SQLITE_BIGENDIAN);
-  walChecksumBytes(nativeCksum, aFrame, 8, aCksum, aCksum);
-  walChecksumBytes(nativeCksum, aData, pWal->szPage, aCksum, aCksum);
-  if( aCksum[0]!=tdsqlite3Get4byte(&aFrame[16]) 
-   || aCksum[1]!=tdsqlite3Get4byte(&aFrame[20]) 
-  ){
-    /* Checksum failed. */
-    return 0;
-  }
-
-  /* If we reach this point, the frame is valid.  Return the page number
-  ** and the new database size.
-  */
-  *piPage = pgno;
-  *pnTruncate = tdsqlite3Get4byte(&aFrame[4]);
-  return 1;
-}
-
-
-#if defined(SQLITE_TEST) && defined(SQLITE_DEBUG)
-/*
-** Names of locks.  This routine is used to provide debugging output and is not
-** a part of an ordinary build.
-*/
-static const char *walLockName(int lockIdx){
-  if( lockIdx==WAL_WRITE_LOCK ){
-    return "WRITE-LOCK";
-  }else if( lockIdx==WAL_CKPT_LOCK ){
-    return "CKPT-LOCK";
-  }else if( lockIdx==WAL_RECOVER_LOCK ){
-    return "RECOVER-LOCK";
-  }else{
-    static char zName[15];
-    tdsqlite3_snprintf(sizeof(zName), zName, "READ-LOCK[%d]",
-                     lockIdx-WAL_READ_LOCK(0));
-    return zName;
-  }
-}
-#endif /*defined(SQLITE_TEST) || defined(SQLITE_DEBUG) */
-    
-
-/*
-** Set or release locks on the WAL.  Locks are either shared or exclusive.
-** A lock cannot be moved directly between shared and exclusive - it must go
-** through the unlocked state first.
-**
-** In locking_mode=EXCLUSIVE, all of these routines become no-ops.
-*/
-static int walLockShared(Wal *pWal, int lockIdx){
-  int rc;
-  if( pWal->exclusiveMode ) return SQLITE_OK;
-  rc = tdsqlite3OsShmLock(pWal->pDbFd, lockIdx, 1,
-                        SQLITE_SHM_LOCK | SQLITE_SHM_SHARED);
-  WALTRACE(("WAL%p: acquire SHARED-%s %s\n", pWal,
-            walLockName(lockIdx), rc ? "failed" : "ok"));
-  VVA_ONLY( pWal->lockError = (u8)(rc!=SQLITE_OK && rc!=SQLITE_BUSY); )
-  return rc;
-}
-static void walUnlockShared(Wal *pWal, int lockIdx){
-  if( pWal->exclusiveMode ) return;
-  (void)tdsqlite3OsShmLock(pWal->pDbFd, lockIdx, 1,
-                         SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED);
-  WALTRACE(("WAL%p: release SHARED-%s\n", pWal, walLockName(lockIdx)));
-}
-static int walLockExclusive(Wal *pWal, int lockIdx, int n){
-  int rc;
-  if( pWal->exclusiveMode ) return SQLITE_OK;
-  rc = tdsqlite3OsShmLock(pWal->pDbFd, lockIdx, n,
-                        SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE);
-  WALTRACE(("WAL%p: acquire EXCLUSIVE-%s cnt=%d %s\n", pWal,
-            walLockName(lockIdx), n, rc ? "failed" : "ok"));
-  VVA_ONLY( pWal->lockError = (u8)(rc!=SQLITE_OK && rc!=SQLITE_BUSY); )
-  return rc;
-}
-static void walUnlockExclusive(Wal *pWal, int lockIdx, int n){
-  if( pWal->exclusiveMode ) return;
-  (void)tdsqlite3OsShmLock(pWal->pDbFd, lockIdx, n,
-                         SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE);
-  WALTRACE(("WAL%p: release EXCLUSIVE-%s cnt=%d\n", pWal,
-             walLockName(lockIdx), n));
-}
-
-/*
-** Compute a hash on a page number.  The resulting hash value must land
-** between 0 and (HASHTABLE_NSLOT-1).  The walHashNext() function advances
-** the hash to the next value in the event of a collision.
-*/
-static int walHash(u32 iPage){
-  assert( iPage>0 );
-  assert( (HASHTABLE_NSLOT & (HASHTABLE_NSLOT-1))==0 );
-  return (iPage*HASHTABLE_HASH_1) & (HASHTABLE_NSLOT-1);
-}
-static int walNextHash(int iPriorHash){
-  return (iPriorHash+1)&(HASHTABLE_NSLOT-1);
-}
-
-/*
-** An instance of the WalHashLoc object is used to describe the location
-** of a page hash table in the wal-index.  This becomes the return value
-** from walHashGet().
-*/
-typedef struct WalHashLoc WalHashLoc;
-struct WalHashLoc {
-  volatile ht_slot *aHash;  /* Start of the wal-index hash table */
-  volatile u32 *aPgno;      /* aPgno[1] is the page of first frame indexed */
-  u32 iZero;                /* One less than the frame number of first indexed*/
-};
-
-/* 
-** Return pointers to the hash table and page number array stored on
-** page iHash of the wal-index. The wal-index is broken into 32KB pages
-** numbered starting from 0.
-**
-** Set output variable pLoc->aHash to point to the start of the hash table
-** in the wal-index file. Set pLoc->iZero to one less than the frame 
-** number of the first frame indexed by this hash table. If a
-** slot in the hash table is set to N, it refers to frame number 
-** (pLoc->iZero+N) in the log.
-**
-** Finally, set pLoc->aPgno so that pLoc->aPgno[1] is the page number of the
-** first frame indexed by the hash table, frame (pLoc->iZero+1).
-*/
-static int walHashGet(
-  Wal *pWal,                      /* WAL handle */
-  int iHash,                      /* Find the iHash'th table */
-  WalHashLoc *pLoc                /* OUT: Hash table location */
-){
-  int rc;                         /* Return code */
-
-  rc = walIndexPage(pWal, iHash, &pLoc->aPgno);
-  assert( rc==SQLITE_OK || iHash>0 );
-
-  if( rc==SQLITE_OK ){
-    pLoc->aHash = (volatile ht_slot *)&pLoc->aPgno[HASHTABLE_NPAGE];
-    if( iHash==0 ){
-      pLoc->aPgno = &pLoc->aPgno[WALINDEX_HDR_SIZE/sizeof(u32)];
-      pLoc->iZero = 0;
-    }else{
-      pLoc->iZero = HASHTABLE_NPAGE_ONE + (iHash-1)*HASHTABLE_NPAGE;
-    }
-    pLoc->aPgno = &pLoc->aPgno[-1];
-  }
-  return rc;
-}
-
-/*
-** Return the number of the wal-index page that contains the hash-table
-** and page-number array that contain entries corresponding to WAL frame
-** iFrame. The wal-index is broken up into 32KB pages. Wal-index pages 
-** are numbered starting from 0.
-*/
-static int walFramePage(u32 iFrame){
-  int iHash = (iFrame+HASHTABLE_NPAGE-HASHTABLE_NPAGE_ONE-1) / HASHTABLE_NPAGE;
-  assert( (iHash==0 || iFrame>HASHTABLE_NPAGE_ONE)
-       && (iHash>=1 || iFrame<=HASHTABLE_NPAGE_ONE)
-       && (iHash<=1 || iFrame>(HASHTABLE_NPAGE_ONE+HASHTABLE_NPAGE))
-       && (iHash>=2 || iFrame<=HASHTABLE_NPAGE_ONE+HASHTABLE_NPAGE)
-       && (iHash<=2 || iFrame>(HASHTABLE_NPAGE_ONE+2*HASHTABLE_NPAGE))
-  );
-  return iHash;
-}
-
-/*
-** Return the page number associated with frame iFrame in this WAL.
-*/
-static u32 walFramePgno(Wal *pWal, u32 iFrame){
-  int iHash = walFramePage(iFrame);
-  if( iHash==0 ){
-    return pWal->apWiData[0][WALINDEX_HDR_SIZE/sizeof(u32) + iFrame - 1];
-  }
-  return pWal->apWiData[iHash][(iFrame-1-HASHTABLE_NPAGE_ONE)%HASHTABLE_NPAGE];
-}
-
-/*
-** Remove entries from the hash table that point to WAL slots greater
-** than pWal->hdr.mxFrame.
-**
-** This function is called whenever pWal->hdr.mxFrame is decreased due
-** to a rollback or savepoint.
-**
-** At most only the hash table containing pWal->hdr.mxFrame needs to be
-** updated.  Any later hash tables will be automatically cleared when
-** pWal->hdr.mxFrame advances to the point where those hash tables are
-** actually needed.
-*/
-static void walCleanupHash(Wal *pWal){
-  WalHashLoc sLoc;                /* Hash table location */
-  int iLimit = 0;                 /* Zero values greater than this */
-  int nByte;                      /* Number of bytes to zero in aPgno[] */
-  int i;                          /* Used to iterate through aHash[] */
-  int rc;                         /* Return code form walHashGet() */
-
-  assert( pWal->writeLock );
-  testcase( pWal->hdr.mxFrame==HASHTABLE_NPAGE_ONE-1 );
-  testcase( pWal->hdr.mxFrame==HASHTABLE_NPAGE_ONE );
-  testcase( pWal->hdr.mxFrame==HASHTABLE_NPAGE_ONE+1 );
-
-  if( pWal->hdr.mxFrame==0 ) return;
-
-  /* Obtain pointers to the hash-table and page-number array containing 
-  ** the entry that corresponds to frame pWal->hdr.mxFrame. It is guaranteed
-  ** that the page said hash-table and array reside on is already mapped.(1)
-  */
-  assert( pWal->nWiData>walFramePage(pWal->hdr.mxFrame) );
-  assert( pWal->apWiData[walFramePage(pWal->hdr.mxFrame)] );
-  rc = walHashGet(pWal, walFramePage(pWal->hdr.mxFrame), &sLoc);
-  if( NEVER(rc) ) return; /* Defense-in-depth, in case (1) above is wrong */
-
-  /* Zero all hash-table entries that correspond to frame numbers greater
-  ** than pWal->hdr.mxFrame.
-  */
-  iLimit = pWal->hdr.mxFrame - sLoc.iZero;
-  assert( iLimit>0 );
-  for(i=0; i<HASHTABLE_NSLOT; i++){
-    if( sLoc.aHash[i]>iLimit ){
-      sLoc.aHash[i] = 0;
-    }
-  }
-  
-  /* Zero the entries in the aPgno array that correspond to frames with
-  ** frame numbers greater than pWal->hdr.mxFrame. 
-  */
-  nByte = (int)((char *)sLoc.aHash - (char *)&sLoc.aPgno[iLimit+1]);
-  memset((void *)&sLoc.aPgno[iLimit+1], 0, nByte);
-
-#ifdef SQLITE_ENABLE_EXPENSIVE_ASSERT
-  /* Verify that the every entry in the mapping region is still reachable
-  ** via the hash table even after the cleanup.
-  */
-  if( iLimit ){
-    int j;           /* Loop counter */
-    int iKey;        /* Hash key */
-    for(j=1; j<=iLimit; j++){
-      for(iKey=walHash(sLoc.aPgno[j]);sLoc.aHash[iKey];iKey=walNextHash(iKey)){
-        if( sLoc.aHash[iKey]==j ) break;
-      }
-      assert( sLoc.aHash[iKey]==j );
-    }
-  }
-#endif /* SQLITE_ENABLE_EXPENSIVE_ASSERT */
-}
-
-
-/*
-** Set an entry in the wal-index that will map database page number
-** pPage into WAL frame iFrame.
-*/
-static int walIndexAppend(Wal *pWal, u32 iFrame, u32 iPage){
-  int rc;                         /* Return code */
-  WalHashLoc sLoc;                /* Wal-index hash table location */
-
-  rc = walHashGet(pWal, walFramePage(iFrame), &sLoc);
-
-  /* Assuming the wal-index file was successfully mapped, populate the
-  ** page number array and hash table entry.
-  */
-  if( rc==SQLITE_OK ){
-    int iKey;                     /* Hash table key */
-    int idx;                      /* Value to write to hash-table slot */
-    int nCollide;                 /* Number of hash collisions */
-
-    idx = iFrame - sLoc.iZero;
-    assert( idx <= HASHTABLE_NSLOT/2 + 1 );
-    
-    /* If this is the first entry to be added to this hash-table, zero the
-    ** entire hash table and aPgno[] array before proceeding. 
-    */
-    if( idx==1 ){
-      int nByte = (int)((u8 *)&sLoc.aHash[HASHTABLE_NSLOT]
-                               - (u8 *)&sLoc.aPgno[1]);
-      memset((void*)&sLoc.aPgno[1], 0, nByte);
-    }
-
-    /* If the entry in aPgno[] is already set, then the previous writer
-    ** must have exited unexpectedly in the middle of a transaction (after
-    ** writing one or more dirty pages to the WAL to free up memory). 
-    ** Remove the remnants of that writers uncommitted transaction from 
-    ** the hash-table before writing any new entries.
-    */
-    if( sLoc.aPgno[idx] ){
-      walCleanupHash(pWal);
-      assert( !sLoc.aPgno[idx] );
-    }
-
-    /* Write the aPgno[] array entry and the hash-table slot. */
-    nCollide = idx;
-    for(iKey=walHash(iPage); sLoc.aHash[iKey]; iKey=walNextHash(iKey)){
-      if( (nCollide--)==0 ) return SQLITE_CORRUPT_BKPT;
-    }
-    sLoc.aPgno[idx] = iPage;
-    sLoc.aHash[iKey] = (ht_slot)idx;
-
-#ifdef SQLITE_ENABLE_EXPENSIVE_ASSERT
-    /* Verify that the number of entries in the hash table exactly equals
-    ** the number of entries in the mapping region.
-    */
-    {
-      int i;           /* Loop counter */
-      int nEntry = 0;  /* Number of entries in the hash table */
-      for(i=0; i<HASHTABLE_NSLOT; i++){ if( sLoc.aHash[i] ) nEntry++; }
-      assert( nEntry==idx );
-    }
-
-    /* Verify that the every entry in the mapping region is reachable
-    ** via the hash table.  This turns out to be a really, really expensive
-    ** thing to check, so only do this occasionally - not on every
-    ** iteration.
-    */
-    if( (idx&0x3ff)==0 ){
-      int i;           /* Loop counter */
-      for(i=1; i<=idx; i++){
-        for(iKey=walHash(sLoc.aPgno[i]);
-            sLoc.aHash[iKey];
-            iKey=walNextHash(iKey)){
-          if( sLoc.aHash[iKey]==i ) break;
-        }
-        assert( sLoc.aHash[iKey]==i );
-      }
-    }
-#endif /* SQLITE_ENABLE_EXPENSIVE_ASSERT */
-  }
-
-
-  return rc;
-}
-
-
-/*
-** Recover the wal-index by reading the write-ahead log file. 
-**
-** This routine first tries to establish an exclusive lock on the
-** wal-index to prevent other threads/processes from doing anything
-** with the WAL or wal-index while recovery is running.  The
-** WAL_RECOVER_LOCK is also held so that other threads will know
-** that this thread is running recovery.  If unable to establish
-** the necessary locks, this routine returns SQLITE_BUSY.
-*/
-static int walIndexRecover(Wal *pWal){
-  int rc;                         /* Return Code */
-  i64 nSize;                      /* Size of log file */
-  u32 aFrameCksum[2] = {0, 0};
-  int iLock;                      /* Lock offset to lock for checkpoint */
-
-  /* Obtain an exclusive lock on all byte in the locking range not already
-  ** locked by the caller. The caller is guaranteed to have locked the
-  ** WAL_WRITE_LOCK byte, and may have also locked the WAL_CKPT_LOCK byte.
-  ** If successful, the same bytes that are locked here are unlocked before
-  ** this function returns.
-  */
-  assert( pWal->ckptLock==1 || pWal->ckptLock==0 );
-  assert( WAL_ALL_BUT_WRITE==WAL_WRITE_LOCK+1 );
-  assert( WAL_CKPT_LOCK==WAL_ALL_BUT_WRITE );
-  assert( pWal->writeLock );
-  iLock = WAL_ALL_BUT_WRITE + pWal->ckptLock;
-  rc = walLockExclusive(pWal, iLock, WAL_READ_LOCK(0)-iLock);
-  if( rc==SQLITE_OK ){
-    rc = walLockExclusive(pWal, WAL_READ_LOCK(1), WAL_NREADER-1);
-    if( rc!=SQLITE_OK ){
-      walUnlockExclusive(pWal, iLock, WAL_READ_LOCK(0)-iLock);
-    }
-  }
-  if( rc ){
-    return rc;
-  }
-
-  WALTRACE(("WAL%p: recovery begin...\n", pWal));
-
-  memset(&pWal->hdr, 0, sizeof(WalIndexHdr));
-
-  rc = tdsqlite3OsFileSize(pWal->pWalFd, &nSize);
-  if( rc!=SQLITE_OK ){
-    goto recovery_error;
-  }
-
-  if( nSize>WAL_HDRSIZE ){
-    u8 aBuf[WAL_HDRSIZE];         /* Buffer to load WAL header into */
-    u8 *aFrame = 0;               /* Malloc'd buffer to load entire frame */
-    int szFrame;                  /* Number of bytes in buffer aFrame[] */
-    u8 *aData;                    /* Pointer to data part of aFrame buffer */
-    int iFrame;                   /* Index of last frame read */
-    i64 iOffset;                  /* Next offset to read from log file */
-    int szPage;                   /* Page size according to the log */
-    u32 magic;                    /* Magic value read from WAL header */
-    u32 version;                  /* Magic value read from WAL header */
-    int isValid;                  /* True if this frame is valid */
-
-    /* Read in the WAL header. */
-    rc = tdsqlite3OsRead(pWal->pWalFd, aBuf, WAL_HDRSIZE, 0);
-    if( rc!=SQLITE_OK ){
-      goto recovery_error;
-    }
-
-    /* If the database page size is not a power of two, or is greater than
-    ** SQLITE_MAX_PAGE_SIZE, conclude that the WAL file contains no valid 
-    ** data. Similarly, if the 'magic' value is invalid, ignore the whole
-    ** WAL file.
-    */
-    magic = tdsqlite3Get4byte(&aBuf[0]);
-    szPage = tdsqlite3Get4byte(&aBuf[8]);
-    if( (magic&0xFFFFFFFE)!=WAL_MAGIC 
-     || szPage&(szPage-1) 
-     || szPage>SQLITE_MAX_PAGE_SIZE 
-     || szPage<512 
-    ){
-      goto finished;
-    }
-    pWal->hdr.bigEndCksum = (u8)(magic&0x00000001);
-    pWal->szPage = szPage;
-    pWal->nCkpt = tdsqlite3Get4byte(&aBuf[12]);
-    memcpy(&pWal->hdr.aSalt, &aBuf[16], 8);
-
-    /* Verify that the WAL header checksum is correct */
-    walChecksumBytes(pWal->hdr.bigEndCksum==SQLITE_BIGENDIAN, 
-        aBuf, WAL_HDRSIZE-2*4, 0, pWal->hdr.aFrameCksum
-    );
-    if( pWal->hdr.aFrameCksum[0]!=tdsqlite3Get4byte(&aBuf[24])
-     || pWal->hdr.aFrameCksum[1]!=tdsqlite3Get4byte(&aBuf[28])
-    ){
-      goto finished;
-    }
-
-    /* Verify that the version number on the WAL format is one that
-    ** are able to understand */
-    version = tdsqlite3Get4byte(&aBuf[4]);
-    if( version!=WAL_MAX_VERSION ){
-      rc = SQLITE_CANTOPEN_BKPT;
-      goto finished;
-    }
-
-    /* Malloc a buffer to read frames into. */
-    szFrame = szPage + WAL_FRAME_HDRSIZE;
-    aFrame = (u8 *)tdsqlite3_malloc64(szFrame);
-    if( !aFrame ){
-      rc = SQLITE_NOMEM_BKPT;
-      goto recovery_error;
-    }
-    aData = &aFrame[WAL_FRAME_HDRSIZE];
-
-    /* Read all frames from the log file. */
-    iFrame = 0;
-    for(iOffset=WAL_HDRSIZE; (iOffset+szFrame)<=nSize; iOffset+=szFrame){
-      u32 pgno;                   /* Database page number for frame */
-      u32 nTruncate;              /* dbsize field from frame header */
-
-      /* Read and decode the next log frame. */
-      iFrame++;
-      rc = tdsqlite3OsRead(pWal->pWalFd, aFrame, szFrame, iOffset);
-      if( rc!=SQLITE_OK ) break;
-      isValid = walDecodeFrame(pWal, &pgno, &nTruncate, aData, aFrame);
-      if( !isValid ) break;
-      rc = walIndexAppend(pWal, iFrame, pgno);
-      if( rc!=SQLITE_OK ) break;
-
-      /* If nTruncate is non-zero, this is a commit record. */
-      if( nTruncate ){
-        pWal->hdr.mxFrame = iFrame;
-        pWal->hdr.nPage = nTruncate;
-        pWal->hdr.szPage = (u16)((szPage&0xff00) | (szPage>>16));
-        testcase( szPage<=32768 );
-        testcase( szPage>=65536 );
-        aFrameCksum[0] = pWal->hdr.aFrameCksum[0];
-        aFrameCksum[1] = pWal->hdr.aFrameCksum[1];
-      }
-    }
-
-    tdsqlite3_free(aFrame);
-  }
-
-finished:
-  if( rc==SQLITE_OK ){
-    volatile WalCkptInfo *pInfo;
-    int i;
-    pWal->hdr.aFrameCksum[0] = aFrameCksum[0];
-    pWal->hdr.aFrameCksum[1] = aFrameCksum[1];
-    walIndexWriteHdr(pWal);
-
-    /* Reset the checkpoint-header. This is safe because this thread is 
-    ** currently holding locks that exclude all other readers, writers and
-    ** checkpointers.
-    */
-    pInfo = walCkptInfo(pWal);
-    pInfo->nBackfill = 0;
-    pInfo->nBackfillAttempted = pWal->hdr.mxFrame;
-    pInfo->aReadMark[0] = 0;
-    for(i=1; i<WAL_NREADER; i++) pInfo->aReadMark[i] = READMARK_NOT_USED;
-    if( pWal->hdr.mxFrame ) pInfo->aReadMark[1] = pWal->hdr.mxFrame;
-
-    /* If more than one frame was recovered from the log file, report an
-    ** event via tdsqlite3_log(). This is to help with identifying performance
-    ** problems caused by applications routinely shutting down without
-    ** checkpointing the log file.
-    */
-    if( pWal->hdr.nPage ){
-      tdsqlite3_log(SQLITE_NOTICE_RECOVER_WAL,
-          "recovered %d frames from WAL file %s",
-          pWal->hdr.mxFrame, pWal->zWalName
-      );
-    }
-  }
-
-recovery_error:
-  WALTRACE(("WAL%p: recovery %s\n", pWal, rc ? "failed" : "ok"));
-  walUnlockExclusive(pWal, iLock, WAL_READ_LOCK(0)-iLock);
-  walUnlockExclusive(pWal, WAL_READ_LOCK(1), WAL_NREADER-1);
-  return rc;
-}
-
-/*
-** Close an open wal-index.
-*/
-static void walIndexClose(Wal *pWal, int isDelete){
-  if( pWal->exclusiveMode==WAL_HEAPMEMORY_MODE || pWal->bShmUnreliable ){
-    int i;
-    for(i=0; i<pWal->nWiData; i++){
-      tdsqlite3_free((void *)pWal->apWiData[i]);
-      pWal->apWiData[i] = 0;
-    }
-  }
-  if( pWal->exclusiveMode!=WAL_HEAPMEMORY_MODE ){
-    tdsqlite3OsShmUnmap(pWal->pDbFd, isDelete);
-  }
-}
-
-/* 
-** Open a connection to the WAL file zWalName. The database file must 
-** already be opened on connection pDbFd. The buffer that zWalName points
-** to must remain valid for the lifetime of the returned Wal* handle.
-**
-** A SHARED lock should be held on the database file when this function
-** is called. The purpose of this SHARED lock is to prevent any other
-** client from unlinking the WAL or wal-index file. If another process
-** were to do this just after this client opened one of these files, the
-** system would be badly broken.
-**
-** If the log file is successfully opened, SQLITE_OK is returned and 
-** *ppWal is set to point to a new WAL handle. If an error occurs,
-** an SQLite error code is returned and *ppWal is left unmodified.
-*/
-SQLITE_PRIVATE int tdsqlite3WalOpen(
-  tdsqlite3_vfs *pVfs,              /* vfs module to open wal and wal-index */
-  tdsqlite3_file *pDbFd,            /* The open database file */
-  const char *zWalName,           /* Name of the WAL file */
-  int bNoShm,                     /* True to run in heap-memory mode */
-  i64 mxWalSize,                  /* Truncate WAL to this size on reset */
-  Wal **ppWal                     /* OUT: Allocated Wal handle */
-){
-  int rc;                         /* Return Code */
-  Wal *pRet;                      /* Object to allocate and return */
-  int flags;                      /* Flags passed to OsOpen() */
-
-  assert( zWalName && zWalName[0] );
-  assert( pDbFd );
-
-  /* In the amalgamation, the os_unix.c and os_win.c source files come before
-  ** this source file.  Verify that the #defines of the locking byte offsets
-  ** in os_unix.c and os_win.c agree with the WALINDEX_LOCK_OFFSET value.
-  ** For that matter, if the lock offset ever changes from its initial design
-  ** value of 120, we need to know that so there is an assert() to check it.
-  */
-  assert( 120==WALINDEX_LOCK_OFFSET );
-  assert( 136==WALINDEX_HDR_SIZE );
-#ifdef WIN_SHM_BASE
-  assert( WIN_SHM_BASE==WALINDEX_LOCK_OFFSET );
-#endif
-#ifdef UNIX_SHM_BASE
-  assert( UNIX_SHM_BASE==WALINDEX_LOCK_OFFSET );
-#endif
-
-
-  /* Allocate an instance of struct Wal to return. */
-  *ppWal = 0;
-  pRet = (Wal*)tdsqlite3MallocZero(sizeof(Wal) + pVfs->szOsFile);
-  if( !pRet ){
-    return SQLITE_NOMEM_BKPT;
-  }
-
-  pRet->pVfs = pVfs;
-  pRet->pWalFd = (tdsqlite3_file *)&pRet[1];
-  pRet->pDbFd = pDbFd;
-  pRet->readLock = -1;
-  pRet->mxWalSize = mxWalSize;
-  pRet->zWalName = zWalName;
-  pRet->syncHeader = 1;
-  pRet->padToSectorBoundary = 1;
-  pRet->exclusiveMode = (bNoShm ? WAL_HEAPMEMORY_MODE: WAL_NORMAL_MODE);
-
-  /* Open file handle on the write-ahead log file. */
-  flags = (SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_WAL);
-  rc = tdsqlite3OsOpen(pVfs, zWalName, pRet->pWalFd, flags, &flags);
-  if( rc==SQLITE_OK && flags&SQLITE_OPEN_READONLY ){
-    pRet->readOnly = WAL_RDONLY;
-  }
-
-  if( rc!=SQLITE_OK ){
-    walIndexClose(pRet, 0);
-    tdsqlite3OsClose(pRet->pWalFd);
-    tdsqlite3_free(pRet);
-  }else{
-    int iDC = tdsqlite3OsDeviceCharacteristics(pDbFd);
-    if( iDC & SQLITE_IOCAP_SEQUENTIAL ){ pRet->syncHeader = 0; }
-    if( iDC & SQLITE_IOCAP_POWERSAFE_OVERWRITE ){
-      pRet->padToSectorBoundary = 0;
-    }
-    *ppWal = pRet;
-    WALTRACE(("WAL%d: opened\n", pRet));
-  }
-  return rc;
-}
-
-/*
-** Change the size to which the WAL file is trucated on each reset.
-*/
-SQLITE_PRIVATE void tdsqlite3WalLimit(Wal *pWal, i64 iLimit){
-  if( pWal ) pWal->mxWalSize = iLimit;
-}
-
-/*
-** Find the smallest page number out of all pages held in the WAL that
-** has not been returned by any prior invocation of this method on the
-** same WalIterator object.   Write into *piFrame the frame index where
-** that page was last written into the WAL.  Write into *piPage the page
-** number.
-**
-** Return 0 on success.  If there are no pages in the WAL with a page
-** number larger than *piPage, then return 1.
-*/
-static int walIteratorNext(
-  WalIterator *p,               /* Iterator */
-  u32 *piPage,                  /* OUT: The page number of the next page */
-  u32 *piFrame                  /* OUT: Wal frame index of next page */
-){
-  u32 iMin;                     /* Result pgno must be greater than iMin */
-  u32 iRet = 0xFFFFFFFF;        /* 0xffffffff is never a valid page number */
-  int i;                        /* For looping through segments */
-
-  iMin = p->iPrior;
-  assert( iMin<0xffffffff );
-  for(i=p->nSegment-1; i>=0; i--){
-    struct WalSegment *pSegment = &p->aSegment[i];
-    while( pSegment->iNext<pSegment->nEntry ){
-      u32 iPg = pSegment->aPgno[pSegment->aIndex[pSegment->iNext]];
-      if( iPg>iMin ){
-        if( iPg<iRet ){
-          iRet = iPg;
-          *piFrame = pSegment->iZero + pSegment->aIndex[pSegment->iNext];
-        }
-        break;
-      }
-      pSegment->iNext++;
-    }
-  }
-
-  *piPage = p->iPrior = iRet;
-  return (iRet==0xFFFFFFFF);
-}
-
-/*
-** This function merges two sorted lists into a single sorted list.
-**
-** aLeft[] and aRight[] are arrays of indices.  The sort key is
-** aContent[aLeft[]] and aContent[aRight[]].  Upon entry, the following
-** is guaranteed for all J<K:
-**
-**        aContent[aLeft[J]] < aContent[aLeft[K]]
-**        aContent[aRight[J]] < aContent[aRight[K]]
-**
-** This routine overwrites aRight[] with a new (probably longer) sequence
-** of indices such that the aRight[] contains every index that appears in
-** either aLeft[] or the old aRight[] and such that the second condition
-** above is still met.
-**
-** The aContent[aLeft[X]] values will be unique for all X.  And the
-** aContent[aRight[X]] values will be unique too.  But there might be
-** one or more combinations of X and Y such that
-**
-**      aLeft[X]!=aRight[Y]  &&  aContent[aLeft[X]] == aContent[aRight[Y]]
-**
-** When that happens, omit the aLeft[X] and use the aRight[Y] index.
-*/
-static void walMerge(
-  const u32 *aContent,            /* Pages in wal - keys for the sort */
-  ht_slot *aLeft,                 /* IN: Left hand input list */
-  int nLeft,                      /* IN: Elements in array *paLeft */
-  ht_slot **paRight,              /* IN/OUT: Right hand input list */
-  int *pnRight,                   /* IN/OUT: Elements in *paRight */
-  ht_slot *aTmp                   /* Temporary buffer */
-){
-  int iLeft = 0;                  /* Current index in aLeft */
-  int iRight = 0;                 /* Current index in aRight */
-  int iOut = 0;                   /* Current index in output buffer */
-  int nRight = *pnRight;
-  ht_slot *aRight = *paRight;
-
-  assert( nLeft>0 && nRight>0 );
-  while( iRight<nRight || iLeft<nLeft ){
-    ht_slot logpage;
-    Pgno dbpage;
-
-    if( (iLeft<nLeft) 
-     && (iRight>=nRight || aContent[aLeft[iLeft]]<aContent[aRight[iRight]])
-    ){
-      logpage = aLeft[iLeft++];
-    }else{
-      logpage = aRight[iRight++];
-    }
-    dbpage = aContent[logpage];
-
-    aTmp[iOut++] = logpage;
-    if( iLeft<nLeft && aContent[aLeft[iLeft]]==dbpage ) iLeft++;
-
-    assert( iLeft>=nLeft || aContent[aLeft[iLeft]]>dbpage );
-    assert( iRight>=nRight || aContent[aRight[iRight]]>dbpage );
-  }
-
-  *paRight = aLeft;
-  *pnRight = iOut;
-  memcpy(aLeft, aTmp, sizeof(aTmp[0])*iOut);
-}
-
-/*
-** Sort the elements in list aList using aContent[] as the sort key.
-** Remove elements with duplicate keys, preferring to keep the
-** larger aList[] values.
-**
-** The aList[] entries are indices into aContent[].  The values in
-** aList[] are to be sorted so that for all J<K:
-**
-**      aContent[aList[J]] < aContent[aList[K]]
-**
-** For any X and Y such that
-**
-**      aContent[aList[X]] == aContent[aList[Y]]
-**
-** Keep the larger of the two values aList[X] and aList[Y] and discard
-** the smaller.
-*/
-static void walMergesort(
-  const u32 *aContent,            /* Pages in wal */
-  ht_slot *aBuffer,               /* Buffer of at least *pnList items to use */
-  ht_slot *aList,                 /* IN/OUT: List to sort */
-  int *pnList                     /* IN/OUT: Number of elements in aList[] */
-){
-  struct Sublist {
-    int nList;                    /* Number of elements in aList */
-    ht_slot *aList;               /* Pointer to sub-list content */
-  };
-
-  const int nList = *pnList;      /* Size of input list */
-  int nMerge = 0;                 /* Number of elements in list aMerge */
-  ht_slot *aMerge = 0;            /* List to be merged */
-  int iList;                      /* Index into input list */
-  u32 iSub = 0;                   /* Index into aSub array */
-  struct Sublist aSub[13];        /* Array of sub-lists */
-
-  memset(aSub, 0, sizeof(aSub));
-  assert( nList<=HASHTABLE_NPAGE && nList>0 );
-  assert( HASHTABLE_NPAGE==(1<<(ArraySize(aSub)-1)) );
-
-  for(iList=0; iList<nList; iList++){
-    nMerge = 1;
-    aMerge = &aList[iList];
-    for(iSub=0; iList & (1<<iSub); iSub++){
-      struct Sublist *p;
-      assert( iSub<ArraySize(aSub) );
-      p = &aSub[iSub];
-      assert( p->aList && p->nList<=(1<<iSub) );
-      assert( p->aList==&aList[iList&~((2<<iSub)-1)] );
-      walMerge(aContent, p->aList, p->nList, &aMerge, &nMerge, aBuffer);
-    }
-    aSub[iSub].aList = aMerge;
-    aSub[iSub].nList = nMerge;
-  }
-
-  for(iSub++; iSub<ArraySize(aSub); iSub++){
-    if( nList & (1<<iSub) ){
-      struct Sublist *p;
-      assert( iSub<ArraySize(aSub) );
-      p = &aSub[iSub];
-      assert( p->nList<=(1<<iSub) );
-      assert( p->aList==&aList[nList&~((2<<iSub)-1)] );
-      walMerge(aContent, p->aList, p->nList, &aMerge, &nMerge, aBuffer);
-    }
-  }
-  assert( aMerge==aList );
-  *pnList = nMerge;
-
-#ifdef SQLITE_DEBUG
-  {
-    int i;
-    for(i=1; i<*pnList; i++){
-      assert( aContent[aList[i]] > aContent[aList[i-1]] );
-    }
-  }
-#endif
-}
-
-/* 
-** Free an iterator allocated by walIteratorInit().
-*/
-static void walIteratorFree(WalIterator *p){
-  tdsqlite3_free(p);
-}
-
-/*
-** Construct a WalInterator object that can be used to loop over all 
-** pages in the WAL following frame nBackfill in ascending order. Frames
-** nBackfill or earlier may be included - excluding them is an optimization
-** only. The caller must hold the checkpoint lock.
-**
-** On success, make *pp point to the newly allocated WalInterator object
-** return SQLITE_OK. Otherwise, return an error code. If this routine
-** returns an error, the value of *pp is undefined.
-**
-** The calling routine should invoke walIteratorFree() to destroy the
-** WalIterator object when it has finished with it.
-*/
-static int walIteratorInit(Wal *pWal, u32 nBackfill, WalIterator **pp){
-  WalIterator *p;                 /* Return value */
-  int nSegment;                   /* Number of segments to merge */
-  u32 iLast;                      /* Last frame in log */
-  tdsqlite3_int64 nByte;            /* Number of bytes to allocate */
-  int i;                          /* Iterator variable */
-  ht_slot *aTmp;                  /* Temp space used by merge-sort */
-  int rc = SQLITE_OK;             /* Return Code */
-
-  /* This routine only runs while holding the checkpoint lock. And
-  ** it only runs if there is actually content in the log (mxFrame>0).
-  */
-  assert( pWal->ckptLock && pWal->hdr.mxFrame>0 );
-  iLast = pWal->hdr.mxFrame;
-
-  /* Allocate space for the WalIterator object. */
-  nSegment = walFramePage(iLast) + 1;
-  nByte = sizeof(WalIterator) 
-        + (nSegment-1)*sizeof(struct WalSegment)
-        + iLast*sizeof(ht_slot);
-  p = (WalIterator *)tdsqlite3_malloc64(nByte);
-  if( !p ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  memset(p, 0, nByte);
-  p->nSegment = nSegment;
-
-  /* Allocate temporary space used by the merge-sort routine. This block
-  ** of memory will be freed before this function returns.
-  */
-  aTmp = (ht_slot *)tdsqlite3_malloc64(
-      sizeof(ht_slot) * (iLast>HASHTABLE_NPAGE?HASHTABLE_NPAGE:iLast)
-  );
-  if( !aTmp ){
-    rc = SQLITE_NOMEM_BKPT;
-  }
-
-  for(i=walFramePage(nBackfill+1); rc==SQLITE_OK && i<nSegment; i++){
-    WalHashLoc sLoc;
-
-    rc = walHashGet(pWal, i, &sLoc);
-    if( rc==SQLITE_OK ){
-      int j;                      /* Counter variable */
-      int nEntry;                 /* Number of entries in this segment */
-      ht_slot *aIndex;            /* Sorted index for this segment */
-
-      sLoc.aPgno++;
-      if( (i+1)==nSegment ){
-        nEntry = (int)(iLast - sLoc.iZero);
-      }else{
-        nEntry = (int)((u32*)sLoc.aHash - (u32*)sLoc.aPgno);
-      }
-      aIndex = &((ht_slot *)&p->aSegment[p->nSegment])[sLoc.iZero];
-      sLoc.iZero++;
-  
-      for(j=0; j<nEntry; j++){
-        aIndex[j] = (ht_slot)j;
-      }
-      walMergesort((u32 *)sLoc.aPgno, aTmp, aIndex, &nEntry);
-      p->aSegment[i].iZero = sLoc.iZero;
-      p->aSegment[i].nEntry = nEntry;
-      p->aSegment[i].aIndex = aIndex;
-      p->aSegment[i].aPgno = (u32 *)sLoc.aPgno;
-    }
-  }
-  tdsqlite3_free(aTmp);
-
-  if( rc!=SQLITE_OK ){
-    walIteratorFree(p);
-    p = 0;
-  }
-  *pp = p;
-  return rc;
-}
-
-/*
-** Attempt to obtain the exclusive WAL lock defined by parameters lockIdx and
-** n. If the attempt fails and parameter xBusy is not NULL, then it is a
-** busy-handler function. Invoke it and retry the lock until either the
-** lock is successfully obtained or the busy-handler returns 0.
-*/
-static int walBusyLock(
-  Wal *pWal,                      /* WAL connection */
-  int (*xBusy)(void*),            /* Function to call when busy */
-  void *pBusyArg,                 /* Context argument for xBusyHandler */
-  int lockIdx,                    /* Offset of first byte to lock */
-  int n                           /* Number of bytes to lock */
-){
-  int rc;
-  do {
-    rc = walLockExclusive(pWal, lockIdx, n);
-  }while( xBusy && rc==SQLITE_BUSY && xBusy(pBusyArg) );
-  return rc;
-}
-
-/*
-** The cache of the wal-index header must be valid to call this function.
-** Return the page-size in bytes used by the database.
-*/
-static int walPagesize(Wal *pWal){
-  return (pWal->hdr.szPage&0xfe00) + ((pWal->hdr.szPage&0x0001)<<16);
-}
-
-/*
-** The following is guaranteed when this function is called:
-**
-**   a) the WRITER lock is held,
-**   b) the entire log file has been checkpointed, and
-**   c) any existing readers are reading exclusively from the database
-**      file - there are no readers that may attempt to read a frame from
-**      the log file.
-**
-** This function updates the shared-memory structures so that the next
-** client to write to the database (which may be this one) does so by
-** writing frames into the start of the log file.
-**
-** The value of parameter salt1 is used as the aSalt[1] value in the 
-** new wal-index header. It should be passed a pseudo-random value (i.e. 
-** one obtained from tdsqlite3_randomness()).
-*/
-static void walRestartHdr(Wal *pWal, u32 salt1){
-  volatile WalCkptInfo *pInfo = walCkptInfo(pWal);
-  int i;                          /* Loop counter */
-  u32 *aSalt = pWal->hdr.aSalt;   /* Big-endian salt values */
-  pWal->nCkpt++;
-  pWal->hdr.mxFrame = 0;
-  tdsqlite3Put4byte((u8*)&aSalt[0], 1 + tdsqlite3Get4byte((u8*)&aSalt[0]));
-  memcpy(&pWal->hdr.aSalt[1], &salt1, 4);
-  walIndexWriteHdr(pWal);
-  pInfo->nBackfill = 0;
-  pInfo->nBackfillAttempted = 0;
-  pInfo->aReadMark[1] = 0;
-  for(i=2; i<WAL_NREADER; i++) pInfo->aReadMark[i] = READMARK_NOT_USED;
-  assert( pInfo->aReadMark[0]==0 );
-}
-
-/*
-** Copy as much content as we can from the WAL back into the database file
-** in response to an tdsqlite3_wal_checkpoint() request or the equivalent.
-**
-** The amount of information copies from WAL to database might be limited
-** by active readers.  This routine will never overwrite a database page
-** that a concurrent reader might be using.
-**
-** All I/O barrier operations (a.k.a fsyncs) occur in this routine when
-** SQLite is in WAL-mode in synchronous=NORMAL.  That means that if 
-** checkpoints are always run by a background thread or background 
-** process, foreground threads will never block on a lengthy fsync call.
-**
-** Fsync is called on the WAL before writing content out of the WAL and
-** into the database.  This ensures that if the new content is persistent
-** in the WAL and can be recovered following a power-loss or hard reset.
-**
-** Fsync is also called on the database file if (and only if) the entire
-** WAL content is copied into the database file.  This second fsync makes
-** it safe to delete the WAL since the new content will persist in the
-** database file.
-**
-** This routine uses and updates the nBackfill field of the wal-index header.
-** This is the only routine that will increase the value of nBackfill.  
-** (A WAL reset or recovery will revert nBackfill to zero, but not increase
-** its value.)
-**
-** The caller must be holding sufficient locks to ensure that no other
-** checkpoint is running (in any other thread or process) at the same
-** time.
-*/
-static int walCheckpoint(
-  Wal *pWal,                      /* Wal connection */
-  tdsqlite3 *db,                    /* Check for interrupts on this handle */
-  int eMode,                      /* One of PASSIVE, FULL or RESTART */
-  int (*xBusy)(void*),            /* Function to call when busy */
-  void *pBusyArg,                 /* Context argument for xBusyHandler */
-  int sync_flags,                 /* Flags for OsSync() (or 0) */
-  u8 *zBuf                        /* Temporary buffer to use */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  int szPage;                     /* Database page-size */
-  WalIterator *pIter = 0;         /* Wal iterator context */
-  u32 iDbpage = 0;                /* Next database page to write */
-  u32 iFrame = 0;                 /* Wal frame containing data for iDbpage */
-  u32 mxSafeFrame;                /* Max frame that can be backfilled */
-  u32 mxPage;                     /* Max database page to write */
-  int i;                          /* Loop counter */
-  volatile WalCkptInfo *pInfo;    /* The checkpoint status information */
-
-  szPage = walPagesize(pWal);
-  testcase( szPage<=32768 );
-  testcase( szPage>=65536 );
-  pInfo = walCkptInfo(pWal);
-  if( pInfo->nBackfill<pWal->hdr.mxFrame ){
-
-    /* EVIDENCE-OF: R-62920-47450 The busy-handler callback is never invoked
-    ** in the SQLITE_CHECKPOINT_PASSIVE mode. */
-    assert( eMode!=SQLITE_CHECKPOINT_PASSIVE || xBusy==0 );
-
-    /* Compute in mxSafeFrame the index of the last frame of the WAL that is
-    ** safe to write into the database.  Frames beyond mxSafeFrame might
-    ** overwrite database pages that are in use by active readers and thus
-    ** cannot be backfilled from the WAL.
-    */
-    mxSafeFrame = pWal->hdr.mxFrame;
-    mxPage = pWal->hdr.nPage;
-    for(i=1; i<WAL_NREADER; i++){
-      /* Thread-sanitizer reports that the following is an unsafe read,
-      ** as some other thread may be in the process of updating the value
-      ** of the aReadMark[] slot. The assumption here is that if that is
-      ** happening, the other client may only be increasing the value,
-      ** not decreasing it. So assuming either that either the "old" or
-      ** "new" version of the value is read, and not some arbitrary value
-      ** that would never be written by a real client, things are still 
-      ** safe.
-      **
-      ** Astute readers have pointed out that the assumption stated in the
-      ** last sentence of the previous paragraph is not guaranteed to be
-      ** true for all conforming systems.  However, the assumption is true
-      ** for all compilers and architectures in common use today (circa
-      ** 2019-11-27) and the alternatives are both slow and complex, and
-      ** so we will continue to go with the current design for now.  If this
-      ** bothers you, or if you really are running on a system where aligned
-      ** 32-bit reads and writes are not atomic, then you can simply avoid
-      ** the use of WAL mode, or only use WAL mode together with
-      ** PRAGMA locking_mode=EXCLUSIVE and all will be well.
-      */
-      u32 y = pInfo->aReadMark[i];
-      if( mxSafeFrame>y ){
-        assert( y<=pWal->hdr.mxFrame );
-        rc = walBusyLock(pWal, xBusy, pBusyArg, WAL_READ_LOCK(i), 1);
-        if( rc==SQLITE_OK ){
-          pInfo->aReadMark[i] = (i==1 ? mxSafeFrame : READMARK_NOT_USED);
-          walUnlockExclusive(pWal, WAL_READ_LOCK(i), 1);
-        }else if( rc==SQLITE_BUSY ){
-          mxSafeFrame = y;
-          xBusy = 0;
-        }else{
-          goto walcheckpoint_out;
-        }
-      }
-    }
-
-    /* Allocate the iterator */
-    if( pInfo->nBackfill<mxSafeFrame ){
-      rc = walIteratorInit(pWal, pInfo->nBackfill, &pIter);
-      assert( rc==SQLITE_OK || pIter==0 );
-    }
-
-    if( pIter
-     && (rc = walBusyLock(pWal, xBusy, pBusyArg, WAL_READ_LOCK(0),1))==SQLITE_OK
-    ){
-      u32 nBackfill = pInfo->nBackfill;
-
-      pInfo->nBackfillAttempted = mxSafeFrame;
-
-      /* Sync the WAL to disk */
-      rc = tdsqlite3OsSync(pWal->pWalFd, CKPT_SYNC_FLAGS(sync_flags));
-
-      /* If the database may grow as a result of this checkpoint, hint
-      ** about the eventual size of the db file to the VFS layer.
-      */
-      if( rc==SQLITE_OK ){
-        i64 nReq = ((i64)mxPage * szPage);
-        i64 nSize;                    /* Current size of database file */
-        rc = tdsqlite3OsFileSize(pWal->pDbFd, &nSize);
-        if( rc==SQLITE_OK && nSize<nReq ){
-          tdsqlite3OsFileControlHint(pWal->pDbFd, SQLITE_FCNTL_SIZE_HINT, &nReq);
-        }
-      }
-
-
-      /* Iterate through the contents of the WAL, copying data to the db file */
-      while( rc==SQLITE_OK && 0==walIteratorNext(pIter, &iDbpage, &iFrame) ){
-        i64 iOffset;
-        assert( walFramePgno(pWal, iFrame)==iDbpage );
-        if( db->u1.isInterrupted ){
-          rc = db->mallocFailed ? SQLITE_NOMEM_BKPT : SQLITE_INTERRUPT;
-          break;
-        }
-        if( iFrame<=nBackfill || iFrame>mxSafeFrame || iDbpage>mxPage ){
-          continue;
-        }
-        iOffset = walFrameOffset(iFrame, szPage) + WAL_FRAME_HDRSIZE;
-        /* testcase( IS_BIG_INT(iOffset) ); // requires a 4GiB WAL file */
-        rc = tdsqlite3OsRead(pWal->pWalFd, zBuf, szPage, iOffset);
-        if( rc!=SQLITE_OK ) break;
-        iOffset = (iDbpage-1)*(i64)szPage;
-        testcase( IS_BIG_INT(iOffset) );
-        rc = tdsqlite3OsWrite(pWal->pDbFd, zBuf, szPage, iOffset);
-        if( rc!=SQLITE_OK ) break;
-      }
-
-      /* If work was actually accomplished... */
-      if( rc==SQLITE_OK ){
-        if( mxSafeFrame==walIndexHdr(pWal)->mxFrame ){
-          i64 szDb = pWal->hdr.nPage*(i64)szPage;
-          testcase( IS_BIG_INT(szDb) );
-          rc = tdsqlite3OsTruncate(pWal->pDbFd, szDb);
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3OsSync(pWal->pDbFd, CKPT_SYNC_FLAGS(sync_flags));
-          }
-        }
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3OsFileControl(pWal->pDbFd, SQLITE_FCNTL_CKPT_DONE, 0);
-          if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
-        }
-        if( rc==SQLITE_OK ){
-          pInfo->nBackfill = mxSafeFrame;
-        }
-      }
-
-      /* Release the reader lock held while backfilling */
-      walUnlockExclusive(pWal, WAL_READ_LOCK(0), 1);
-    }
-
-    if( rc==SQLITE_BUSY ){
-      /* Reset the return code so as not to report a checkpoint failure
-      ** just because there are active readers.  */
-      rc = SQLITE_OK;
-    }
-  }
-
-  /* If this is an SQLITE_CHECKPOINT_RESTART or TRUNCATE operation, and the
-  ** entire wal file has been copied into the database file, then block 
-  ** until all readers have finished using the wal file. This ensures that 
-  ** the next process to write to the database restarts the wal file.
-  */
-  if( rc==SQLITE_OK && eMode!=SQLITE_CHECKPOINT_PASSIVE ){
-    assert( pWal->writeLock );
-    if( pInfo->nBackfill<pWal->hdr.mxFrame ){
-      rc = SQLITE_BUSY;
-    }else if( eMode>=SQLITE_CHECKPOINT_RESTART ){
-      u32 salt1;
-      tdsqlite3_randomness(4, &salt1);
-      assert( pInfo->nBackfill==pWal->hdr.mxFrame );
-      rc = walBusyLock(pWal, xBusy, pBusyArg, WAL_READ_LOCK(1), WAL_NREADER-1);
-      if( rc==SQLITE_OK ){
-        if( eMode==SQLITE_CHECKPOINT_TRUNCATE ){
-          /* IMPLEMENTATION-OF: R-44699-57140 This mode works the same way as
-          ** SQLITE_CHECKPOINT_RESTART with the addition that it also
-          ** truncates the log file to zero bytes just prior to a
-          ** successful return.
-          **
-          ** In theory, it might be safe to do this without updating the
-          ** wal-index header in shared memory, as all subsequent reader or
-          ** writer clients should see that the entire log file has been
-          ** checkpointed and behave accordingly. This seems unsafe though,
-          ** as it would leave the system in a state where the contents of
-          ** the wal-index header do not match the contents of the 
-          ** file-system. To avoid this, update the wal-index header to
-          ** indicate that the log file contains zero valid frames.  */
-          walRestartHdr(pWal, salt1);
-          rc = tdsqlite3OsTruncate(pWal->pWalFd, 0);
-        }
-        walUnlockExclusive(pWal, WAL_READ_LOCK(1), WAL_NREADER-1);
-      }
-    }
-  }
-
- walcheckpoint_out:
-  walIteratorFree(pIter);
-  return rc;
-}
-
-/*
-** If the WAL file is currently larger than nMax bytes in size, truncate
-** it to exactly nMax bytes. If an error occurs while doing so, ignore it.
-*/
-static void walLimitSize(Wal *pWal, i64 nMax){
-  i64 sz;
-  int rx;
-  tdsqlite3BeginBenignMalloc();
-  rx = tdsqlite3OsFileSize(pWal->pWalFd, &sz);
-  if( rx==SQLITE_OK && (sz > nMax ) ){
-    rx = tdsqlite3OsTruncate(pWal->pWalFd, nMax);
-  }
-  tdsqlite3EndBenignMalloc();
-  if( rx ){
-    tdsqlite3_log(rx, "cannot limit WAL size: %s", pWal->zWalName);
-  }
-}
-
-/*
-** Close a connection to a log file.
-*/
-SQLITE_PRIVATE int tdsqlite3WalClose(
-  Wal *pWal,                      /* Wal to close */
-  tdsqlite3 *db,                    /* For interrupt flag */
-  int sync_flags,                 /* Flags to pass to OsSync() (or 0) */
-  int nBuf,
-  u8 *zBuf                        /* Buffer of at least nBuf bytes */
-){
-  int rc = SQLITE_OK;
-  if( pWal ){
-    int isDelete = 0;             /* True to unlink wal and wal-index files */
-
-    /* If an EXCLUSIVE lock can be obtained on the database file (using the
-    ** ordinary, rollback-mode locking methods, this guarantees that the
-    ** connection associated with this log file is the only connection to
-    ** the database. In this case checkpoint the database and unlink both
-    ** the wal and wal-index files.
-    **
-    ** The EXCLUSIVE lock is not released before returning.
-    */
-    if( zBuf!=0
-     && SQLITE_OK==(rc = tdsqlite3OsLock(pWal->pDbFd, SQLITE_LOCK_EXCLUSIVE))
-    ){
-      if( pWal->exclusiveMode==WAL_NORMAL_MODE ){
-        pWal->exclusiveMode = WAL_EXCLUSIVE_MODE;
-      }
-      rc = tdsqlite3WalCheckpoint(pWal, db, 
-          SQLITE_CHECKPOINT_PASSIVE, 0, 0, sync_flags, nBuf, zBuf, 0, 0
-      );
-      if( rc==SQLITE_OK ){
-        int bPersist = -1;
-        tdsqlite3OsFileControlHint(
-            pWal->pDbFd, SQLITE_FCNTL_PERSIST_WAL, &bPersist
-        );
-        if( bPersist!=1 ){
-          /* Try to delete the WAL file if the checkpoint completed and
-          ** fsyned (rc==SQLITE_OK) and if we are not in persistent-wal
-          ** mode (!bPersist) */
-          isDelete = 1;
-        }else if( pWal->mxWalSize>=0 ){
-          /* Try to truncate the WAL file to zero bytes if the checkpoint
-          ** completed and fsynced (rc==SQLITE_OK) and we are in persistent
-          ** WAL mode (bPersist) and if the PRAGMA journal_size_limit is a
-          ** non-negative value (pWal->mxWalSize>=0).  Note that we truncate
-          ** to zero bytes as truncating to the journal_size_limit might
-          ** leave a corrupt WAL file on disk. */
-          walLimitSize(pWal, 0);
-        }
-      }
-    }
-
-    walIndexClose(pWal, isDelete);
-    tdsqlite3OsClose(pWal->pWalFd);
-    if( isDelete ){
-      tdsqlite3BeginBenignMalloc();
-      tdsqlite3OsDelete(pWal->pVfs, pWal->zWalName, 0);
-      tdsqlite3EndBenignMalloc();
-    }
-    WALTRACE(("WAL%p: closed\n", pWal));
-    tdsqlite3_free((void *)pWal->apWiData);
-    tdsqlite3_free(pWal);
-  }
-  return rc;
-}
-
-/*
-** Try to read the wal-index header.  Return 0 on success and 1 if
-** there is a problem.
-**
-** The wal-index is in shared memory.  Another thread or process might
-** be writing the header at the same time this procedure is trying to
-** read it, which might result in inconsistency.  A dirty read is detected
-** by verifying that both copies of the header are the same and also by
-** a checksum on the header.
-**
-** If and only if the read is consistent and the header is different from
-** pWal->hdr, then pWal->hdr is updated to the content of the new header
-** and *pChanged is set to 1.
-**
-** If the checksum cannot be verified return non-zero. If the header
-** is read successfully and the checksum verified, return zero.
-*/
-static int walIndexTryHdr(Wal *pWal, int *pChanged){
-  u32 aCksum[2];                  /* Checksum on the header content */
-  WalIndexHdr h1, h2;             /* Two copies of the header content */
-  WalIndexHdr volatile *aHdr;     /* Header in shared memory */
-
-  /* The first page of the wal-index must be mapped at this point. */
-  assert( pWal->nWiData>0 && pWal->apWiData[0] );
-
-  /* Read the header. This might happen concurrently with a write to the
-  ** same area of shared memory on a different CPU in a SMP,
-  ** meaning it is possible that an inconsistent snapshot is read
-  ** from the file. If this happens, return non-zero.
-  **
-  ** There are two copies of the header at the beginning of the wal-index.
-  ** When reading, read [0] first then [1].  Writes are in the reverse order.
-  ** Memory barriers are used to prevent the compiler or the hardware from
-  ** reordering the reads and writes.
-  */
-  aHdr = walIndexHdr(pWal);
-  memcpy(&h1, (void *)&aHdr[0], sizeof(h1));
-  walShmBarrier(pWal);
-  memcpy(&h2, (void *)&aHdr[1], sizeof(h2));
-
-  if( memcmp(&h1, &h2, sizeof(h1))!=0 ){
-    return 1;   /* Dirty read */
-  }  
-  if( h1.isInit==0 ){
-    return 1;   /* Malformed header - probably all zeros */
-  }
-  walChecksumBytes(1, (u8*)&h1, sizeof(h1)-sizeof(h1.aCksum), 0, aCksum);
-  if( aCksum[0]!=h1.aCksum[0] || aCksum[1]!=h1.aCksum[1] ){
-    return 1;   /* Checksum does not match */
-  }
-
-  if( memcmp(&pWal->hdr, &h1, sizeof(WalIndexHdr)) ){
-    *pChanged = 1;
-    memcpy(&pWal->hdr, &h1, sizeof(WalIndexHdr));
-    pWal->szPage = (pWal->hdr.szPage&0xfe00) + ((pWal->hdr.szPage&0x0001)<<16);
-    testcase( pWal->szPage<=32768 );
-    testcase( pWal->szPage>=65536 );
-  }
-
-  /* The header was successfully read. Return zero. */
-  return 0;
-}
-
-/*
-** This is the value that walTryBeginRead returns when it needs to
-** be retried.
-*/
-#define WAL_RETRY  (-1)
-
-/*
-** Read the wal-index header from the wal-index and into pWal->hdr.
-** If the wal-header appears to be corrupt, try to reconstruct the
-** wal-index from the WAL before returning.
-**
-** Set *pChanged to 1 if the wal-index header value in pWal->hdr is
-** changed by this operation.  If pWal->hdr is unchanged, set *pChanged
-** to 0.
-**
-** If the wal-index header is successfully read, return SQLITE_OK. 
-** Otherwise an SQLite error code.
-*/
-static int walIndexReadHdr(Wal *pWal, int *pChanged){
-  int rc;                         /* Return code */
-  int badHdr;                     /* True if a header read failed */
-  volatile u32 *page0;            /* Chunk of wal-index containing header */
-
-  /* Ensure that page 0 of the wal-index (the page that contains the 
-  ** wal-index header) is mapped. Return early if an error occurs here.
-  */
-  assert( pChanged );
-  rc = walIndexPage(pWal, 0, &page0);
-  if( rc!=SQLITE_OK ){
-    assert( rc!=SQLITE_READONLY ); /* READONLY changed to OK in walIndexPage */
-    if( rc==SQLITE_READONLY_CANTINIT ){
-      /* The SQLITE_READONLY_CANTINIT return means that the shared-memory
-      ** was openable but is not writable, and this thread is unable to
-      ** confirm that another write-capable connection has the shared-memory
-      ** open, and hence the content of the shared-memory is unreliable,
-      ** since the shared-memory might be inconsistent with the WAL file
-      ** and there is no writer on hand to fix it. */
-      assert( page0==0 );
-      assert( pWal->writeLock==0 );
-      assert( pWal->readOnly & WAL_SHM_RDONLY );
-      pWal->bShmUnreliable = 1;
-      pWal->exclusiveMode = WAL_HEAPMEMORY_MODE;
-      *pChanged = 1;
-    }else{
-      return rc; /* Any other non-OK return is just an error */
-    }
-  }else{
-    /* page0 can be NULL if the SHM is zero bytes in size and pWal->writeLock
-    ** is zero, which prevents the SHM from growing */
-    testcase( page0!=0 );
-  }
-  assert( page0!=0 || pWal->writeLock==0 );
-
-  /* If the first page of the wal-index has been mapped, try to read the
-  ** wal-index header immediately, without holding any lock. This usually
-  ** works, but may fail if the wal-index header is corrupt or currently 
-  ** being modified by another thread or process.
-  */
-  badHdr = (page0 ? walIndexTryHdr(pWal, pChanged) : 1);
-
-  /* If the first attempt failed, it might have been due to a race
-  ** with a writer.  So get a WRITE lock and try again.
-  */
-  assert( badHdr==0 || pWal->writeLock==0 );
-  if( badHdr ){
-    if( pWal->bShmUnreliable==0 && (pWal->readOnly & WAL_SHM_RDONLY) ){
-      if( SQLITE_OK==(rc = walLockShared(pWal, WAL_WRITE_LOCK)) ){
-        walUnlockShared(pWal, WAL_WRITE_LOCK);
-        rc = SQLITE_READONLY_RECOVERY;
-      }
-    }else if( SQLITE_OK==(rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1)) ){
-      pWal->writeLock = 1;
-      if( SQLITE_OK==(rc = walIndexPage(pWal, 0, &page0)) ){
-        badHdr = walIndexTryHdr(pWal, pChanged);
-        if( badHdr ){
-          /* If the wal-index header is still malformed even while holding
-          ** a WRITE lock, it can only mean that the header is corrupted and
-          ** needs to be reconstructed.  So run recovery to do exactly that.
-          */
-          rc = walIndexRecover(pWal);
-          *pChanged = 1;
-        }
-      }
-      pWal->writeLock = 0;
-      walUnlockExclusive(pWal, WAL_WRITE_LOCK, 1);
-    }
-  }
-
-  /* If the header is read successfully, check the version number to make
-  ** sure the wal-index was not constructed with some future format that
-  ** this version of SQLite cannot understand.
-  */
-  if( badHdr==0 && pWal->hdr.iVersion!=WALINDEX_MAX_VERSION ){
-    rc = SQLITE_CANTOPEN_BKPT;
-  }
-  if( pWal->bShmUnreliable ){
-    if( rc!=SQLITE_OK ){
-      walIndexClose(pWal, 0);
-      pWal->bShmUnreliable = 0;
-      assert( pWal->nWiData>0 && pWal->apWiData[0]==0 );
-      /* walIndexRecover() might have returned SHORT_READ if a concurrent
-      ** writer truncated the WAL out from under it.  If that happens, it
-      ** indicates that a writer has fixed the SHM file for us, so retry */
-      if( rc==SQLITE_IOERR_SHORT_READ ) rc = WAL_RETRY;
-    }
-    pWal->exclusiveMode = WAL_NORMAL_MODE;
-  }
-
-  return rc;
-}
-
-/*
-** Open a transaction in a connection where the shared-memory is read-only
-** and where we cannot verify that there is a separate write-capable connection
-** on hand to keep the shared-memory up-to-date with the WAL file.
-**
-** This can happen, for example, when the shared-memory is implemented by
-** memory-mapping a *-shm file, where a prior writer has shut down and
-** left the *-shm file on disk, and now the present connection is trying
-** to use that database but lacks write permission on the *-shm file.
-** Other scenarios are also possible, depending on the VFS implementation.
-**
-** Precondition:
-**
-**    The *-wal file has been read and an appropriate wal-index has been
-**    constructed in pWal->apWiData[] using heap memory instead of shared
-**    memory. 
-**
-** If this function returns SQLITE_OK, then the read transaction has
-** been successfully opened. In this case output variable (*pChanged) 
-** is set to true before returning if the caller should discard the
-** contents of the page cache before proceeding. Or, if it returns 
-** WAL_RETRY, then the heap memory wal-index has been discarded and 
-** the caller should retry opening the read transaction from the 
-** beginning (including attempting to map the *-shm file). 
-**
-** If an error occurs, an SQLite error code is returned.
-*/
-static int walBeginShmUnreliable(Wal *pWal, int *pChanged){
-  i64 szWal;                      /* Size of wal file on disk in bytes */
-  i64 iOffset;                    /* Current offset when reading wal file */
-  u8 aBuf[WAL_HDRSIZE];           /* Buffer to load WAL header into */
-  u8 *aFrame = 0;                 /* Malloc'd buffer to load entire frame */
-  int szFrame;                    /* Number of bytes in buffer aFrame[] */
-  u8 *aData;                      /* Pointer to data part of aFrame buffer */
-  volatile void *pDummy;          /* Dummy argument for xShmMap */
-  int rc;                         /* Return code */
-  u32 aSaveCksum[2];              /* Saved copy of pWal->hdr.aFrameCksum */
-
-  assert( pWal->bShmUnreliable );
-  assert( pWal->readOnly & WAL_SHM_RDONLY );
-  assert( pWal->nWiData>0 && pWal->apWiData[0] );
-
-  /* Take WAL_READ_LOCK(0). This has the effect of preventing any
-  ** writers from running a checkpoint, but does not stop them
-  ** from running recovery.  */
-  rc = walLockShared(pWal, WAL_READ_LOCK(0));
-  if( rc!=SQLITE_OK ){
-    if( rc==SQLITE_BUSY ) rc = WAL_RETRY;
-    goto begin_unreliable_shm_out;
-  }
-  pWal->readLock = 0;
-
-  /* Check to see if a separate writer has attached to the shared-memory area,
-  ** thus making the shared-memory "reliable" again.  Do this by invoking
-  ** the xShmMap() routine of the VFS and looking to see if the return
-  ** is SQLITE_READONLY instead of SQLITE_READONLY_CANTINIT.
-  **
-  ** If the shared-memory is now "reliable" return WAL_RETRY, which will
-  ** cause the heap-memory WAL-index to be discarded and the actual
-  ** shared memory to be used in its place.
-  **
-  ** This step is important because, even though this connection is holding
-  ** the WAL_READ_LOCK(0) which prevents a checkpoint, a writer might
-  ** have already checkpointed the WAL file and, while the current
-  ** is active, wrap the WAL and start overwriting frames that this
-  ** process wants to use.
-  **
-  ** Once tdsqlite3OsShmMap() has been called for an tdsqlite3_file and has
-  ** returned any SQLITE_READONLY value, it must return only SQLITE_READONLY
-  ** or SQLITE_READONLY_CANTINIT or some error for all subsequent invocations,
-  ** even if some external agent does a "chmod" to make the shared-memory
-  ** writable by us, until tdsqlite3OsShmUnmap() has been called.
-  ** This is a requirement on the VFS implementation.
-   */
-  rc = tdsqlite3OsShmMap(pWal->pDbFd, 0, WALINDEX_PGSZ, 0, &pDummy);
-  assert( rc!=SQLITE_OK ); /* SQLITE_OK not possible for read-only connection */
-  if( rc!=SQLITE_READONLY_CANTINIT ){
-    rc = (rc==SQLITE_READONLY ? WAL_RETRY : rc);
-    goto begin_unreliable_shm_out;
-  }
-
-  /* We reach this point only if the real shared-memory is still unreliable.
-  ** Assume the in-memory WAL-index substitute is correct and load it
-  ** into pWal->hdr.
-  */
-  memcpy(&pWal->hdr, (void*)walIndexHdr(pWal), sizeof(WalIndexHdr));
-
-  /* Make sure some writer hasn't come in and changed the WAL file out
-  ** from under us, then disconnected, while we were not looking.
-  */
-  rc = tdsqlite3OsFileSize(pWal->pWalFd, &szWal);
-  if( rc!=SQLITE_OK ){
-    goto begin_unreliable_shm_out;
-  }
-  if( szWal<WAL_HDRSIZE ){
-    /* If the wal file is too small to contain a wal-header and the
-    ** wal-index header has mxFrame==0, then it must be safe to proceed
-    ** reading the database file only. However, the page cache cannot
-    ** be trusted, as a read/write connection may have connected, written
-    ** the db, run a checkpoint, truncated the wal file and disconnected
-    ** since this client's last read transaction.  */
-    *pChanged = 1;
-    rc = (pWal->hdr.mxFrame==0 ? SQLITE_OK : WAL_RETRY);
-    goto begin_unreliable_shm_out;
-  }
-
-  /* Check the salt keys at the start of the wal file still match. */
-  rc = tdsqlite3OsRead(pWal->pWalFd, aBuf, WAL_HDRSIZE, 0);
-  if( rc!=SQLITE_OK ){
-    goto begin_unreliable_shm_out;
-  }
-  if( memcmp(&pWal->hdr.aSalt, &aBuf[16], 8) ){
-    /* Some writer has wrapped the WAL file while we were not looking.
-    ** Return WAL_RETRY which will cause the in-memory WAL-index to be
-    ** rebuilt. */
-    rc = WAL_RETRY;
-    goto begin_unreliable_shm_out;
-  }
-
-  /* Allocate a buffer to read frames into */
-  szFrame = pWal->hdr.szPage + WAL_FRAME_HDRSIZE;
-  aFrame = (u8 *)tdsqlite3_malloc64(szFrame);
-  if( aFrame==0 ){
-    rc = SQLITE_NOMEM_BKPT;
-    goto begin_unreliable_shm_out;
-  }
-  aData = &aFrame[WAL_FRAME_HDRSIZE];
-
-  /* Check to see if a complete transaction has been appended to the
-  ** wal file since the heap-memory wal-index was created. If so, the
-  ** heap-memory wal-index is discarded and WAL_RETRY returned to
-  ** the caller.  */
-  aSaveCksum[0] = pWal->hdr.aFrameCksum[0];
-  aSaveCksum[1] = pWal->hdr.aFrameCksum[1];
-  for(iOffset=walFrameOffset(pWal->hdr.mxFrame+1, pWal->hdr.szPage); 
-      iOffset+szFrame<=szWal; 
-      iOffset+=szFrame
-  ){
-    u32 pgno;                   /* Database page number for frame */
-    u32 nTruncate;              /* dbsize field from frame header */
-
-    /* Read and decode the next log frame. */
-    rc = tdsqlite3OsRead(pWal->pWalFd, aFrame, szFrame, iOffset);
-    if( rc!=SQLITE_OK ) break;
-    if( !walDecodeFrame(pWal, &pgno, &nTruncate, aData, aFrame) ) break;
-
-    /* If nTruncate is non-zero, then a complete transaction has been
-    ** appended to this wal file. Set rc to WAL_RETRY and break out of
-    ** the loop.  */
-    if( nTruncate ){
-      rc = WAL_RETRY;
-      break;
-    }
-  }
-  pWal->hdr.aFrameCksum[0] = aSaveCksum[0];
-  pWal->hdr.aFrameCksum[1] = aSaveCksum[1];
-
- begin_unreliable_shm_out:
-  tdsqlite3_free(aFrame);
-  if( rc!=SQLITE_OK ){
-    int i;
-    for(i=0; i<pWal->nWiData; i++){
-      tdsqlite3_free((void*)pWal->apWiData[i]);
-      pWal->apWiData[i] = 0;
-    }
-    pWal->bShmUnreliable = 0;
-    tdsqlite3WalEndReadTransaction(pWal);
-    *pChanged = 1;
-  }
-  return rc;
-}
-
-/*
-** Attempt to start a read transaction.  This might fail due to a race or
-** other transient condition.  When that happens, it returns WAL_RETRY to
-** indicate to the caller that it is safe to retry immediately.
-**
-** On success return SQLITE_OK.  On a permanent failure (such an
-** I/O error or an SQLITE_BUSY because another process is running
-** recovery) return a positive error code.
-**
-** The useWal parameter is true to force the use of the WAL and disable
-** the case where the WAL is bypassed because it has been completely
-** checkpointed.  If useWal==0 then this routine calls walIndexReadHdr() 
-** to make a copy of the wal-index header into pWal->hdr.  If the 
-** wal-index header has changed, *pChanged is set to 1 (as an indication 
-** to the caller that the local page cache is obsolete and needs to be 
-** flushed.)  When useWal==1, the wal-index header is assumed to already
-** be loaded and the pChanged parameter is unused.
-**
-** The caller must set the cnt parameter to the number of prior calls to
-** this routine during the current read attempt that returned WAL_RETRY.
-** This routine will start taking more aggressive measures to clear the
-** race conditions after multiple WAL_RETRY returns, and after an excessive
-** number of errors will ultimately return SQLITE_PROTOCOL.  The
-** SQLITE_PROTOCOL return indicates that some other process has gone rogue
-** and is not honoring the locking protocol.  There is a vanishingly small
-** chance that SQLITE_PROTOCOL could be returned because of a run of really
-** bad luck when there is lots of contention for the wal-index, but that
-** possibility is so small that it can be safely neglected, we believe.
-**
-** On success, this routine obtains a read lock on 
-** WAL_READ_LOCK(pWal->readLock).  The pWal->readLock integer is
-** in the range 0 <= pWal->readLock < WAL_NREADER.  If pWal->readLock==(-1)
-** that means the Wal does not hold any read lock.  The reader must not
-** access any database page that is modified by a WAL frame up to and
-** including frame number aReadMark[pWal->readLock].  The reader will
-** use WAL frames up to and including pWal->hdr.mxFrame if pWal->readLock>0
-** Or if pWal->readLock==0, then the reader will ignore the WAL
-** completely and get all content directly from the database file.
-** If the useWal parameter is 1 then the WAL will never be ignored and
-** this routine will always set pWal->readLock>0 on success.
-** When the read transaction is completed, the caller must release the
-** lock on WAL_READ_LOCK(pWal->readLock) and set pWal->readLock to -1.
-**
-** This routine uses the nBackfill and aReadMark[] fields of the header
-** to select a particular WAL_READ_LOCK() that strives to let the
-** checkpoint process do as much work as possible.  This routine might
-** update values of the aReadMark[] array in the header, but if it does
-** so it takes care to hold an exclusive lock on the corresponding
-** WAL_READ_LOCK() while changing values.
-*/
-static int walTryBeginRead(Wal *pWal, int *pChanged, int useWal, int cnt){
-  volatile WalCkptInfo *pInfo;    /* Checkpoint information in wal-index */
-  u32 mxReadMark;                 /* Largest aReadMark[] value */
-  int mxI;                        /* Index of largest aReadMark[] value */
-  int i;                          /* Loop counter */
-  int rc = SQLITE_OK;             /* Return code  */
-  u32 mxFrame;                    /* Wal frame to lock to */
-
-  assert( pWal->readLock<0 );     /* Not currently locked */
-
-  /* useWal may only be set for read/write connections */
-  assert( (pWal->readOnly & WAL_SHM_RDONLY)==0 || useWal==0 );
-
-  /* Take steps to avoid spinning forever if there is a protocol error.
-  **
-  ** Circumstances that cause a RETRY should only last for the briefest
-  ** instances of time.  No I/O or other system calls are done while the
-  ** locks are held, so the locks should not be held for very long. But 
-  ** if we are unlucky, another process that is holding a lock might get
-  ** paged out or take a page-fault that is time-consuming to resolve, 
-  ** during the few nanoseconds that it is holding the lock.  In that case,
-  ** it might take longer than normal for the lock to free.
-  **
-  ** After 5 RETRYs, we begin calling tdsqlite3OsSleep().  The first few
-  ** calls to tdsqlite3OsSleep() have a delay of 1 microsecond.  Really this
-  ** is more of a scheduler yield than an actual delay.  But on the 10th
-  ** an subsequent retries, the delays start becoming longer and longer, 
-  ** so that on the 100th (and last) RETRY we delay for 323 milliseconds.
-  ** The total delay time before giving up is less than 10 seconds.
-  */
-  if( cnt>5 ){
-    int nDelay = 1;                      /* Pause time in microseconds */
-    if( cnt>100 ){
-      VVA_ONLY( pWal->lockError = 1; )
-      return SQLITE_PROTOCOL;
-    }
-    if( cnt>=10 ) nDelay = (cnt-9)*(cnt-9)*39;
-    tdsqlite3OsSleep(pWal->pVfs, nDelay);
-  }
-
-  if( !useWal ){
-    assert( rc==SQLITE_OK );
-    if( pWal->bShmUnreliable==0 ){
-      rc = walIndexReadHdr(pWal, pChanged);
-    }
-    if( rc==SQLITE_BUSY ){
-      /* If there is not a recovery running in another thread or process
-      ** then convert BUSY errors to WAL_RETRY.  If recovery is known to
-      ** be running, convert BUSY to BUSY_RECOVERY.  There is a race here
-      ** which might cause WAL_RETRY to be returned even if BUSY_RECOVERY
-      ** would be technically correct.  But the race is benign since with
-      ** WAL_RETRY this routine will be called again and will probably be
-      ** right on the second iteration.
-      */
-      if( pWal->apWiData[0]==0 ){
-        /* This branch is taken when the xShmMap() method returns SQLITE_BUSY.
-        ** We assume this is a transient condition, so return WAL_RETRY. The
-        ** xShmMap() implementation used by the default unix and win32 VFS 
-        ** modules may return SQLITE_BUSY due to a race condition in the 
-        ** code that determines whether or not the shared-memory region 
-        ** must be zeroed before the requested page is returned.
-        */
-        rc = WAL_RETRY;
-      }else if( SQLITE_OK==(rc = walLockShared(pWal, WAL_RECOVER_LOCK)) ){
-        walUnlockShared(pWal, WAL_RECOVER_LOCK);
-        rc = WAL_RETRY;
-      }else if( rc==SQLITE_BUSY ){
-        rc = SQLITE_BUSY_RECOVERY;
-      }
-    }
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    else if( pWal->bShmUnreliable ){
-      return walBeginShmUnreliable(pWal, pChanged);
-    }
-  }
-
-  assert( pWal->nWiData>0 );
-  assert( pWal->apWiData[0]!=0 );
-  pInfo = walCkptInfo(pWal);
-  if( !useWal && pInfo->nBackfill==pWal->hdr.mxFrame
-#ifdef SQLITE_ENABLE_SNAPSHOT
-   && (pWal->pSnapshot==0 || pWal->hdr.mxFrame==0)
-#endif
-  ){
-    /* The WAL has been completely backfilled (or it is empty).
-    ** and can be safely ignored.
-    */
-    rc = walLockShared(pWal, WAL_READ_LOCK(0));
-    walShmBarrier(pWal);
-    if( rc==SQLITE_OK ){
-      if( memcmp((void *)walIndexHdr(pWal), &pWal->hdr, sizeof(WalIndexHdr)) ){
-        /* It is not safe to allow the reader to continue here if frames
-        ** may have been appended to the log before READ_LOCK(0) was obtained.
-        ** When holding READ_LOCK(0), the reader ignores the entire log file,
-        ** which implies that the database file contains a trustworthy
-        ** snapshot. Since holding READ_LOCK(0) prevents a checkpoint from
-        ** happening, this is usually correct.
-        **
-        ** However, if frames have been appended to the log (or if the log 
-        ** is wrapped and written for that matter) before the READ_LOCK(0)
-        ** is obtained, that is not necessarily true. A checkpointer may
-        ** have started to backfill the appended frames but crashed before
-        ** it finished. Leaving a corrupt image in the database file.
-        */
-        walUnlockShared(pWal, WAL_READ_LOCK(0));
-        return WAL_RETRY;
-      }
-      pWal->readLock = 0;
-      return SQLITE_OK;
-    }else if( rc!=SQLITE_BUSY ){
-      return rc;
-    }
-  }
-
-  /* If we get this far, it means that the reader will want to use
-  ** the WAL to get at content from recent commits.  The job now is
-  ** to select one of the aReadMark[] entries that is closest to
-  ** but not exceeding pWal->hdr.mxFrame and lock that entry.
-  */
-  mxReadMark = 0;
-  mxI = 0;
-  mxFrame = pWal->hdr.mxFrame;
-#ifdef SQLITE_ENABLE_SNAPSHOT
-  if( pWal->pSnapshot && pWal->pSnapshot->mxFrame<mxFrame ){
-    mxFrame = pWal->pSnapshot->mxFrame;
-  }
-#endif
-  for(i=1; i<WAL_NREADER; i++){
-    u32 thisMark = AtomicLoad(pInfo->aReadMark+i);
-    if( mxReadMark<=thisMark && thisMark<=mxFrame ){
-      assert( thisMark!=READMARK_NOT_USED );
-      mxReadMark = thisMark;
-      mxI = i;
-    }
-  }
-  if( (pWal->readOnly & WAL_SHM_RDONLY)==0
-   && (mxReadMark<mxFrame || mxI==0)
-  ){
-    for(i=1; i<WAL_NREADER; i++){
-      rc = walLockExclusive(pWal, WAL_READ_LOCK(i), 1);
-      if( rc==SQLITE_OK ){
-        mxReadMark = AtomicStore(pInfo->aReadMark+i,mxFrame);
-        mxI = i;
-        walUnlockExclusive(pWal, WAL_READ_LOCK(i), 1);
-        break;
-      }else if( rc!=SQLITE_BUSY ){
-        return rc;
-      }
-    }
-  }
-  if( mxI==0 ){
-    assert( rc==SQLITE_BUSY || (pWal->readOnly & WAL_SHM_RDONLY)!=0 );
-    return rc==SQLITE_BUSY ? WAL_RETRY : SQLITE_READONLY_CANTINIT;
-  }
-
-  rc = walLockShared(pWal, WAL_READ_LOCK(mxI));
-  if( rc ){
-    return rc==SQLITE_BUSY ? WAL_RETRY : rc;
-  }
-  /* Now that the read-lock has been obtained, check that neither the
-  ** value in the aReadMark[] array or the contents of the wal-index
-  ** header have changed.
-  **
-  ** It is necessary to check that the wal-index header did not change
-  ** between the time it was read and when the shared-lock was obtained
-  ** on WAL_READ_LOCK(mxI) was obtained to account for the possibility
-  ** that the log file may have been wrapped by a writer, or that frames
-  ** that occur later in the log than pWal->hdr.mxFrame may have been
-  ** copied into the database by a checkpointer. If either of these things
-  ** happened, then reading the database with the current value of
-  ** pWal->hdr.mxFrame risks reading a corrupted snapshot. So, retry
-  ** instead.
-  **
-  ** Before checking that the live wal-index header has not changed
-  ** since it was read, set Wal.minFrame to the first frame in the wal
-  ** file that has not yet been checkpointed. This client will not need
-  ** to read any frames earlier than minFrame from the wal file - they
-  ** can be safely read directly from the database file.
-  **
-  ** Because a ShmBarrier() call is made between taking the copy of 
-  ** nBackfill and checking that the wal-header in shared-memory still
-  ** matches the one cached in pWal->hdr, it is guaranteed that the 
-  ** checkpointer that set nBackfill was not working with a wal-index
-  ** header newer than that cached in pWal->hdr. If it were, that could
-  ** cause a problem. The checkpointer could omit to checkpoint
-  ** a version of page X that lies before pWal->minFrame (call that version
-  ** A) on the basis that there is a newer version (version B) of the same
-  ** page later in the wal file. But if version B happens to like past
-  ** frame pWal->hdr.mxFrame - then the client would incorrectly assume
-  ** that it can read version A from the database file. However, since
-  ** we can guarantee that the checkpointer that set nBackfill could not
-  ** see any pages past pWal->hdr.mxFrame, this problem does not come up.
-  */
-  pWal->minFrame = AtomicLoad(&pInfo->nBackfill)+1;
-  walShmBarrier(pWal);
-  if( AtomicLoad(pInfo->aReadMark+mxI)!=mxReadMark
-   || memcmp((void *)walIndexHdr(pWal), &pWal->hdr, sizeof(WalIndexHdr))
-  ){
-    walUnlockShared(pWal, WAL_READ_LOCK(mxI));
-    return WAL_RETRY;
-  }else{
-    assert( mxReadMark<=pWal->hdr.mxFrame );
-    pWal->readLock = (i16)mxI;
-  }
-  return rc;
-}
-
-#ifdef SQLITE_ENABLE_SNAPSHOT
-/*
-** Attempt to reduce the value of the WalCkptInfo.nBackfillAttempted 
-** variable so that older snapshots can be accessed. To do this, loop
-** through all wal frames from nBackfillAttempted to (nBackfill+1), 
-** comparing their content to the corresponding page with the database
-** file, if any. Set nBackfillAttempted to the frame number of the
-** first frame for which the wal file content matches the db file.
-**
-** This is only really safe if the file-system is such that any page 
-** writes made by earlier checkpointers were atomic operations, which 
-** is not always true. It is also possible that nBackfillAttempted
-** may be left set to a value larger than expected, if a wal frame
-** contains content that duplicate of an earlier version of the same
-** page.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code if an
-** error occurs. It is not an error if nBackfillAttempted cannot be
-** decreased at all.
-*/
-SQLITE_PRIVATE int tdsqlite3WalSnapshotRecover(Wal *pWal){
-  int rc;
-
-  assert( pWal->readLock>=0 );
-  rc = walLockExclusive(pWal, WAL_CKPT_LOCK, 1);
-  if( rc==SQLITE_OK ){
-    volatile WalCkptInfo *pInfo = walCkptInfo(pWal);
-    int szPage = (int)pWal->szPage;
-    i64 szDb;                   /* Size of db file in bytes */
-
-    rc = tdsqlite3OsFileSize(pWal->pDbFd, &szDb);
-    if( rc==SQLITE_OK ){
-      void *pBuf1 = tdsqlite3_malloc(szPage);
-      void *pBuf2 = tdsqlite3_malloc(szPage);
-      if( pBuf1==0 || pBuf2==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        u32 i = pInfo->nBackfillAttempted;
-        for(i=pInfo->nBackfillAttempted; i>pInfo->nBackfill; i--){
-          WalHashLoc sLoc;          /* Hash table location */
-          u32 pgno;                 /* Page number in db file */
-          i64 iDbOff;               /* Offset of db file entry */
-          i64 iWalOff;              /* Offset of wal file entry */
-
-          rc = walHashGet(pWal, walFramePage(i), &sLoc);
-          if( rc!=SQLITE_OK ) break;
-          pgno = sLoc.aPgno[i-sLoc.iZero];
-          iDbOff = (i64)(pgno-1) * szPage;
-
-          if( iDbOff+szPage<=szDb ){
-            iWalOff = walFrameOffset(i, szPage) + WAL_FRAME_HDRSIZE;
-            rc = tdsqlite3OsRead(pWal->pWalFd, pBuf1, szPage, iWalOff);
-
-            if( rc==SQLITE_OK ){
-              rc = tdsqlite3OsRead(pWal->pDbFd, pBuf2, szPage, iDbOff);
-            }
-
-            if( rc!=SQLITE_OK || 0==memcmp(pBuf1, pBuf2, szPage) ){
-              break;
-            }
-          }
-
-          pInfo->nBackfillAttempted = i-1;
-        }
-      }
-
-      tdsqlite3_free(pBuf1);
-      tdsqlite3_free(pBuf2);
-    }
-    walUnlockExclusive(pWal, WAL_CKPT_LOCK, 1);
-  }
-
-  return rc;
-}
-#endif /* SQLITE_ENABLE_SNAPSHOT */
-
-/*
-** Begin a read transaction on the database.
-**
-** This routine used to be called tdsqlite3OpenSnapshot() and with good reason:
-** it takes a snapshot of the state of the WAL and wal-index for the current
-** instant in time.  The current thread will continue to use this snapshot.
-** Other threads might append new content to the WAL and wal-index but
-** that extra content is ignored by the current thread.
-**
-** If the database contents have changes since the previous read
-** transaction, then *pChanged is set to 1 before returning.  The
-** Pager layer will use this to know that its cache is stale and
-** needs to be flushed.
-*/
-SQLITE_PRIVATE int tdsqlite3WalBeginReadTransaction(Wal *pWal, int *pChanged){
-  int rc;                         /* Return code */
-  int cnt = 0;                    /* Number of TryBeginRead attempts */
-
-#ifdef SQLITE_ENABLE_SNAPSHOT
-  int bChanged = 0;
-  WalIndexHdr *pSnapshot = pWal->pSnapshot;
-  if( pSnapshot && memcmp(pSnapshot, &pWal->hdr, sizeof(WalIndexHdr))!=0 ){
-    bChanged = 1;
-  }
-#endif
-
-  do{
-    rc = walTryBeginRead(pWal, pChanged, 0, ++cnt);
-  }while( rc==WAL_RETRY );
-  testcase( (rc&0xff)==SQLITE_BUSY );
-  testcase( (rc&0xff)==SQLITE_IOERR );
-  testcase( rc==SQLITE_PROTOCOL );
-  testcase( rc==SQLITE_OK );
-
-#ifdef SQLITE_ENABLE_SNAPSHOT
-  if( rc==SQLITE_OK ){
-    if( pSnapshot && memcmp(pSnapshot, &pWal->hdr, sizeof(WalIndexHdr))!=0 ){
-      /* At this point the client has a lock on an aReadMark[] slot holding
-      ** a value equal to or smaller than pSnapshot->mxFrame, but pWal->hdr
-      ** is populated with the wal-index header corresponding to the head
-      ** of the wal file. Verify that pSnapshot is still valid before
-      ** continuing.  Reasons why pSnapshot might no longer be valid:
-      **
-      **    (1)  The WAL file has been reset since the snapshot was taken.
-      **         In this case, the salt will have changed.
-      **
-      **    (2)  A checkpoint as been attempted that wrote frames past
-      **         pSnapshot->mxFrame into the database file.  Note that the
-      **         checkpoint need not have completed for this to cause problems.
-      */
-      volatile WalCkptInfo *pInfo = walCkptInfo(pWal);
-
-      assert( pWal->readLock>0 || pWal->hdr.mxFrame==0 );
-      assert( pInfo->aReadMark[pWal->readLock]<=pSnapshot->mxFrame );
-
-      /* It is possible that there is a checkpointer thread running 
-      ** concurrent with this code. If this is the case, it may be that the
-      ** checkpointer has already determined that it will checkpoint 
-      ** snapshot X, where X is later in the wal file than pSnapshot, but 
-      ** has not yet set the pInfo->nBackfillAttempted variable to indicate 
-      ** its intent. To avoid the race condition this leads to, ensure that
-      ** there is no checkpointer process by taking a shared CKPT lock 
-      ** before checking pInfo->nBackfillAttempted.  
-      **
-      ** TODO: Does the aReadMark[] lock prevent a checkpointer from doing
-      **       this already?
-      */
-      rc = walLockShared(pWal, WAL_CKPT_LOCK);
-
-      if( rc==SQLITE_OK ){
-        /* Check that the wal file has not been wrapped. Assuming that it has
-        ** not, also check that no checkpointer has attempted to checkpoint any
-        ** frames beyond pSnapshot->mxFrame. If either of these conditions are
-        ** true, return SQLITE_ERROR_SNAPSHOT. Otherwise, overwrite pWal->hdr
-        ** with *pSnapshot and set *pChanged as appropriate for opening the
-        ** snapshot.  */
-        if( !memcmp(pSnapshot->aSalt, pWal->hdr.aSalt, sizeof(pWal->hdr.aSalt))
-         && pSnapshot->mxFrame>=pInfo->nBackfillAttempted
-        ){
-          assert( pWal->readLock>0 );
-          memcpy(&pWal->hdr, pSnapshot, sizeof(WalIndexHdr));
-          *pChanged = bChanged;
-        }else{
-          rc = SQLITE_ERROR_SNAPSHOT;
-        }
-
-        /* Release the shared CKPT lock obtained above. */
-        walUnlockShared(pWal, WAL_CKPT_LOCK);
-        pWal->minFrame = 1;
-      }
-
-
-      if( rc!=SQLITE_OK ){
-        tdsqlite3WalEndReadTransaction(pWal);
-      }
-    }
-  }
-#endif
-  return rc;
-}
-
-/*
-** Finish with a read transaction.  All this does is release the
-** read-lock.
-*/
-SQLITE_PRIVATE void tdsqlite3WalEndReadTransaction(Wal *pWal){
-  tdsqlite3WalEndWriteTransaction(pWal);
-  if( pWal->readLock>=0 ){
-    walUnlockShared(pWal, WAL_READ_LOCK(pWal->readLock));
-    pWal->readLock = -1;
-  }
-}
-
-/*
-** Search the wal file for page pgno. If found, set *piRead to the frame that
-** contains the page. Otherwise, if pgno is not in the wal file, set *piRead
-** to zero.
-**
-** Return SQLITE_OK if successful, or an error code if an error occurs. If an
-** error does occur, the final value of *piRead is undefined.
-*/
-SQLITE_PRIVATE int tdsqlite3WalFindFrame(
-  Wal *pWal,                      /* WAL handle */
-  Pgno pgno,                      /* Database page number to read data for */
-  u32 *piRead                     /* OUT: Frame number (or zero) */
-){
-  u32 iRead = 0;                  /* If !=0, WAL frame to return data from */
-  u32 iLast = pWal->hdr.mxFrame;  /* Last page in WAL for this reader */
-  int iHash;                      /* Used to loop through N hash tables */
-  int iMinHash;
-
-  /* This routine is only be called from within a read transaction. */
-  assert( pWal->readLock>=0 || pWal->lockError );
-
-  /* If the "last page" field of the wal-index header snapshot is 0, then
-  ** no data will be read from the wal under any circumstances. Return early
-  ** in this case as an optimization.  Likewise, if pWal->readLock==0, 
-  ** then the WAL is ignored by the reader so return early, as if the 
-  ** WAL were empty.
-  */
-  if( iLast==0 || (pWal->readLock==0 && pWal->bShmUnreliable==0) ){
-    *piRead = 0;
-    return SQLITE_OK;
-  }
-
-  /* Search the hash table or tables for an entry matching page number
-  ** pgno. Each iteration of the following for() loop searches one
-  ** hash table (each hash table indexes up to HASHTABLE_NPAGE frames).
-  **
-  ** This code might run concurrently to the code in walIndexAppend()
-  ** that adds entries to the wal-index (and possibly to this hash 
-  ** table). This means the value just read from the hash 
-  ** slot (aHash[iKey]) may have been added before or after the 
-  ** current read transaction was opened. Values added after the
-  ** read transaction was opened may have been written incorrectly -
-  ** i.e. these slots may contain garbage data. However, we assume
-  ** that any slots written before the current read transaction was
-  ** opened remain unmodified.
-  **
-  ** For the reasons above, the if(...) condition featured in the inner
-  ** loop of the following block is more stringent that would be required 
-  ** if we had exclusive access to the hash-table:
-  **
-  **   (aPgno[iFrame]==pgno): 
-  **     This condition filters out normal hash-table collisions.
-  **
-  **   (iFrame<=iLast): 
-  **     This condition filters out entries that were added to the hash
-  **     table after the current read-transaction had started.
-  */
-  iMinHash = walFramePage(pWal->minFrame);
-  for(iHash=walFramePage(iLast); iHash>=iMinHash; iHash--){
-    WalHashLoc sLoc;              /* Hash table location */
-    int iKey;                     /* Hash slot index */
-    int nCollide;                 /* Number of hash collisions remaining */
-    int rc;                       /* Error code */
-
-    rc = walHashGet(pWal, iHash, &sLoc);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    nCollide = HASHTABLE_NSLOT;
-    for(iKey=walHash(pgno); sLoc.aHash[iKey]; iKey=walNextHash(iKey)){
-      u32 iH = sLoc.aHash[iKey];
-      u32 iFrame = iH + sLoc.iZero;
-      if( iFrame<=iLast && iFrame>=pWal->minFrame && sLoc.aPgno[iH]==pgno ){
-        assert( iFrame>iRead || CORRUPT_DB );
-        iRead = iFrame;
-      }
-      if( (nCollide--)==0 ){
-        return SQLITE_CORRUPT_BKPT;
-      }
-    }
-    if( iRead ) break;
-  }
-
-#ifdef SQLITE_ENABLE_EXPENSIVE_ASSERT
-  /* If expensive assert() statements are available, do a linear search
-  ** of the wal-index file content. Make sure the results agree with the
-  ** result obtained using the hash indexes above.  */
-  {
-    u32 iRead2 = 0;
-    u32 iTest;
-    assert( pWal->bShmUnreliable || pWal->minFrame>0 );
-    for(iTest=iLast; iTest>=pWal->minFrame && iTest>0; iTest--){
-      if( walFramePgno(pWal, iTest)==pgno ){
-        iRead2 = iTest;
-        break;
-      }
-    }
-    assert( iRead==iRead2 );
-  }
-#endif
-
-  *piRead = iRead;
-  return SQLITE_OK;
-}
-
-/*
-** Read the contents of frame iRead from the wal file into buffer pOut
-** (which is nOut bytes in size). Return SQLITE_OK if successful, or an
-** error code otherwise.
-*/
-SQLITE_PRIVATE int tdsqlite3WalReadFrame(
-  Wal *pWal,                      /* WAL handle */
-  u32 iRead,                      /* Frame to read */
-  int nOut,                       /* Size of buffer pOut in bytes */
-  u8 *pOut                        /* Buffer to write page data to */
-){
-  int sz;
-  i64 iOffset;
-  sz = pWal->hdr.szPage;
-  sz = (sz&0xfe00) + ((sz&0x0001)<<16);
-  testcase( sz<=32768 );
-  testcase( sz>=65536 );
-  iOffset = walFrameOffset(iRead, sz) + WAL_FRAME_HDRSIZE;
-  /* testcase( IS_BIG_INT(iOffset) ); // requires a 4GiB WAL */
-  return tdsqlite3OsRead(pWal->pWalFd, pOut, (nOut>sz ? sz : nOut), iOffset);
-}
-
-/* 
-** Return the size of the database in pages (or zero, if unknown).
-*/
-SQLITE_PRIVATE Pgno tdsqlite3WalDbsize(Wal *pWal){
-  if( pWal && ALWAYS(pWal->readLock>=0) ){
-    return pWal->hdr.nPage;
-  }
-  return 0;
-}
-
-
-/* 
-** This function starts a write transaction on the WAL.
-**
-** A read transaction must have already been started by a prior call
-** to tdsqlite3WalBeginReadTransaction().
-**
-** If another thread or process has written into the database since
-** the read transaction was started, then it is not possible for this
-** thread to write as doing so would cause a fork.  So this routine
-** returns SQLITE_BUSY in that case and no write transaction is started.
-**
-** There can only be a single writer active at a time.
-*/
-SQLITE_PRIVATE int tdsqlite3WalBeginWriteTransaction(Wal *pWal){
-  int rc;
-
-  /* Cannot start a write transaction without first holding a read
-  ** transaction. */
-  assert( pWal->readLock>=0 );
-  assert( pWal->writeLock==0 && pWal->iReCksum==0 );
-
-  if( pWal->readOnly ){
-    return SQLITE_READONLY;
-  }
-
-  /* Only one writer allowed at a time.  Get the write lock.  Return
-  ** SQLITE_BUSY if unable.
-  */
-  rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1);
-  if( rc ){
-    return rc;
-  }
-  pWal->writeLock = 1;
-
-  /* If another connection has written to the database file since the
-  ** time the read transaction on this connection was started, then
-  ** the write is disallowed.
-  */
-  if( memcmp(&pWal->hdr, (void *)walIndexHdr(pWal), sizeof(WalIndexHdr))!=0 ){
-    walUnlockExclusive(pWal, WAL_WRITE_LOCK, 1);
-    pWal->writeLock = 0;
-    rc = SQLITE_BUSY_SNAPSHOT;
-  }
-
-  return rc;
-}
-
-/*
-** End a write transaction.  The commit has already been done.  This
-** routine merely releases the lock.
-*/
-SQLITE_PRIVATE int tdsqlite3WalEndWriteTransaction(Wal *pWal){
-  if( pWal->writeLock ){
-    walUnlockExclusive(pWal, WAL_WRITE_LOCK, 1);
-    pWal->writeLock = 0;
-    pWal->iReCksum = 0;
-    pWal->truncateOnCommit = 0;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** If any data has been written (but not committed) to the log file, this
-** function moves the write-pointer back to the start of the transaction.
-**
-** Additionally, the callback function is invoked for each frame written
-** to the WAL since the start of the transaction. If the callback returns
-** other than SQLITE_OK, it is not invoked again and the error code is
-** returned to the caller.
-**
-** Otherwise, if the callback function does not return an error, this
-** function returns SQLITE_OK.
-*/
-SQLITE_PRIVATE int tdsqlite3WalUndo(Wal *pWal, int (*xUndo)(void *, Pgno), void *pUndoCtx){
-  int rc = SQLITE_OK;
-  if( ALWAYS(pWal->writeLock) ){
-    Pgno iMax = pWal->hdr.mxFrame;
-    Pgno iFrame;
-  
-    /* Restore the clients cache of the wal-index header to the state it
-    ** was in before the client began writing to the database. 
-    */
-    memcpy(&pWal->hdr, (void *)walIndexHdr(pWal), sizeof(WalIndexHdr));
-
-    for(iFrame=pWal->hdr.mxFrame+1; 
-        ALWAYS(rc==SQLITE_OK) && iFrame<=iMax; 
-        iFrame++
-    ){
-      /* This call cannot fail. Unless the page for which the page number
-      ** is passed as the second argument is (a) in the cache and 
-      ** (b) has an outstanding reference, then xUndo is either a no-op
-      ** (if (a) is false) or simply expels the page from the cache (if (b)
-      ** is false).
-      **
-      ** If the upper layer is doing a rollback, it is guaranteed that there
-      ** are no outstanding references to any page other than page 1. And
-      ** page 1 is never written to the log until the transaction is
-      ** committed. As a result, the call to xUndo may not fail.
-      */
-      assert( walFramePgno(pWal, iFrame)!=1 );
-      rc = xUndo(pUndoCtx, walFramePgno(pWal, iFrame));
-    }
-    if( iMax!=pWal->hdr.mxFrame ) walCleanupHash(pWal);
-  }
-  return rc;
-}
-
-/* 
-** Argument aWalData must point to an array of WAL_SAVEPOINT_NDATA u32 
-** values. This function populates the array with values required to 
-** "rollback" the write position of the WAL handle back to the current 
-** point in the event of a savepoint rollback (via WalSavepointUndo()).
-*/
-SQLITE_PRIVATE void tdsqlite3WalSavepoint(Wal *pWal, u32 *aWalData){
-  assert( pWal->writeLock );
-  aWalData[0] = pWal->hdr.mxFrame;
-  aWalData[1] = pWal->hdr.aFrameCksum[0];
-  aWalData[2] = pWal->hdr.aFrameCksum[1];
-  aWalData[3] = pWal->nCkpt;
-}
-
-/* 
-** Move the write position of the WAL back to the point identified by
-** the values in the aWalData[] array. aWalData must point to an array
-** of WAL_SAVEPOINT_NDATA u32 values that has been previously populated
-** by a call to WalSavepoint().
-*/
-SQLITE_PRIVATE int tdsqlite3WalSavepointUndo(Wal *pWal, u32 *aWalData){
-  int rc = SQLITE_OK;
-
-  assert( pWal->writeLock );
-  assert( aWalData[3]!=pWal->nCkpt || aWalData[0]<=pWal->hdr.mxFrame );
-
-  if( aWalData[3]!=pWal->nCkpt ){
-    /* This savepoint was opened immediately after the write-transaction
-    ** was started. Right after that, the writer decided to wrap around
-    ** to the start of the log. Update the savepoint values to match.
-    */
-    aWalData[0] = 0;
-    aWalData[3] = pWal->nCkpt;
-  }
-
-  if( aWalData[0]<pWal->hdr.mxFrame ){
-    pWal->hdr.mxFrame = aWalData[0];
-    pWal->hdr.aFrameCksum[0] = aWalData[1];
-    pWal->hdr.aFrameCksum[1] = aWalData[2];
-    walCleanupHash(pWal);
-  }
-
-  return rc;
-}
-
-/*
-** This function is called just before writing a set of frames to the log
-** file (see tdsqlite3WalFrames()). It checks to see if, instead of appending
-** to the current log file, it is possible to overwrite the start of the
-** existing log file with the new frames (i.e. "reset" the log). If so,
-** it sets pWal->hdr.mxFrame to 0. Otherwise, pWal->hdr.mxFrame is left
-** unchanged.
-**
-** SQLITE_OK is returned if no error is encountered (regardless of whether
-** or not pWal->hdr.mxFrame is modified). An SQLite error code is returned
-** if an error occurs.
-*/
-static int walRestartLog(Wal *pWal){
-  int rc = SQLITE_OK;
-  int cnt;
-
-  if( pWal->readLock==0 ){
-    volatile WalCkptInfo *pInfo = walCkptInfo(pWal);
-    assert( pInfo->nBackfill==pWal->hdr.mxFrame );
-    if( pInfo->nBackfill>0 ){
-      u32 salt1;
-      tdsqlite3_randomness(4, &salt1);
-      rc = walLockExclusive(pWal, WAL_READ_LOCK(1), WAL_NREADER-1);
-      if( rc==SQLITE_OK ){
-        /* If all readers are using WAL_READ_LOCK(0) (in other words if no
-        ** readers are currently using the WAL), then the transactions
-        ** frames will overwrite the start of the existing log. Update the
-        ** wal-index header to reflect this.
-        **
-        ** In theory it would be Ok to update the cache of the header only
-        ** at this point. But updating the actual wal-index header is also
-        ** safe and means there is no special case for tdsqlite3WalUndo()
-        ** to handle if this transaction is rolled back.  */
-        walRestartHdr(pWal, salt1);
-        walUnlockExclusive(pWal, WAL_READ_LOCK(1), WAL_NREADER-1);
-      }else if( rc!=SQLITE_BUSY ){
-        return rc;
-      }
-    }
-    walUnlockShared(pWal, WAL_READ_LOCK(0));
-    pWal->readLock = -1;
-    cnt = 0;
-    do{
-      int notUsed;
-      rc = walTryBeginRead(pWal, &notUsed, 1, ++cnt);
-    }while( rc==WAL_RETRY );
-    assert( (rc&0xff)!=SQLITE_BUSY ); /* BUSY not possible when useWal==1 */
-    testcase( (rc&0xff)==SQLITE_IOERR );
-    testcase( rc==SQLITE_PROTOCOL );
-    testcase( rc==SQLITE_OK );
-  }
-  return rc;
-}
-
-/*
-** Information about the current state of the WAL file and where
-** the next fsync should occur - passed from tdsqlite3WalFrames() into
-** walWriteToLog().
-*/
-typedef struct WalWriter {
-  Wal *pWal;                   /* The complete WAL information */
-  tdsqlite3_file *pFd;           /* The WAL file to which we write */
-  tdsqlite3_int64 iSyncPoint;    /* Fsync at this offset */
-  int syncFlags;               /* Flags for the fsync */
-  int szPage;                  /* Size of one page */
-} WalWriter;
-
-/*
-** Write iAmt bytes of content into the WAL file beginning at iOffset.
-** Do a sync when crossing the p->iSyncPoint boundary.
-**
-** In other words, if iSyncPoint is in between iOffset and iOffset+iAmt,
-** first write the part before iSyncPoint, then sync, then write the
-** rest.
-*/
-static int walWriteToLog(
-  WalWriter *p,              /* WAL to write to */
-  void *pContent,            /* Content to be written */
-  int iAmt,                  /* Number of bytes to write */
-  tdsqlite3_int64 iOffset      /* Start writing at this offset */
-){
-  int rc;
-  if( iOffset<p->iSyncPoint && iOffset+iAmt>=p->iSyncPoint ){
-    int iFirstAmt = (int)(p->iSyncPoint - iOffset);
-    rc = tdsqlite3OsWrite(p->pFd, pContent, iFirstAmt, iOffset);
-    if( rc ) return rc;
-    iOffset += iFirstAmt;
-    iAmt -= iFirstAmt;
-    pContent = (void*)(iFirstAmt + (char*)pContent);
-    assert( WAL_SYNC_FLAGS(p->syncFlags)!=0 );
-    rc = tdsqlite3OsSync(p->pFd, WAL_SYNC_FLAGS(p->syncFlags));
-    if( iAmt==0 || rc ) return rc;
-  }
-  rc = tdsqlite3OsWrite(p->pFd, pContent, iAmt, iOffset);
-  return rc;
-}
-
-/*
-** Write out a single frame of the WAL
-*/
-static int walWriteOneFrame(
-  WalWriter *p,               /* Where to write the frame */
-  PgHdr *pPage,               /* The page of the frame to be written */
-  int nTruncate,              /* The commit flag.  Usually 0.  >0 for commit */
-  tdsqlite3_int64 iOffset       /* Byte offset at which to write */
-){
-  int rc;                         /* Result code from subfunctions */
-  void *pData;                    /* Data actually written */
-  u8 aFrame[WAL_FRAME_HDRSIZE];   /* Buffer to assemble frame-header in */
-#if defined(SQLITE_HAS_CODEC)
-  if( (pData = tdsqlite3PagerCodec(pPage))==0 ) return SQLITE_NOMEM_BKPT;
-#else
-  pData = pPage->pData;
-#endif
-  walEncodeFrame(p->pWal, pPage->pgno, nTruncate, pData, aFrame);
-  rc = walWriteToLog(p, aFrame, sizeof(aFrame), iOffset);
-  if( rc ) return rc;
-  /* Write the page data */
-  rc = walWriteToLog(p, pData, p->szPage, iOffset+sizeof(aFrame));
-  return rc;
-}
-
-/*
-** This function is called as part of committing a transaction within which
-** one or more frames have been overwritten. It updates the checksums for
-** all frames written to the wal file by the current transaction starting
-** with the earliest to have been overwritten.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-*/
-static int walRewriteChecksums(Wal *pWal, u32 iLast){
-  const int szPage = pWal->szPage;/* Database page size */
-  int rc = SQLITE_OK;             /* Return code */
-  u8 *aBuf;                       /* Buffer to load data from wal file into */
-  u8 aFrame[WAL_FRAME_HDRSIZE];   /* Buffer to assemble frame-headers in */
-  u32 iRead;                      /* Next frame to read from wal file */
-  i64 iCksumOff;
-
-  aBuf = tdsqlite3_malloc(szPage + WAL_FRAME_HDRSIZE);
-  if( aBuf==0 ) return SQLITE_NOMEM_BKPT;
-
-  /* Find the checksum values to use as input for the recalculating the
-  ** first checksum. If the first frame is frame 1 (implying that the current
-  ** transaction restarted the wal file), these values must be read from the
-  ** wal-file header. Otherwise, read them from the frame header of the
-  ** previous frame.  */
-  assert( pWal->iReCksum>0 );
-  if( pWal->iReCksum==1 ){
-    iCksumOff = 24;
-  }else{
-    iCksumOff = walFrameOffset(pWal->iReCksum-1, szPage) + 16;
-  }
-  rc = tdsqlite3OsRead(pWal->pWalFd, aBuf, sizeof(u32)*2, iCksumOff);
-  pWal->hdr.aFrameCksum[0] = tdsqlite3Get4byte(aBuf);
-  pWal->hdr.aFrameCksum[1] = tdsqlite3Get4byte(&aBuf[sizeof(u32)]);
-
-  iRead = pWal->iReCksum;
-  pWal->iReCksum = 0;
-  for(; rc==SQLITE_OK && iRead<=iLast; iRead++){
-    i64 iOff = walFrameOffset(iRead, szPage);
-    rc = tdsqlite3OsRead(pWal->pWalFd, aBuf, szPage+WAL_FRAME_HDRSIZE, iOff);
-    if( rc==SQLITE_OK ){
-      u32 iPgno, nDbSize;
-      iPgno = tdsqlite3Get4byte(aBuf);
-      nDbSize = tdsqlite3Get4byte(&aBuf[4]);
-
-      walEncodeFrame(pWal, iPgno, nDbSize, &aBuf[WAL_FRAME_HDRSIZE], aFrame);
-      rc = tdsqlite3OsWrite(pWal->pWalFd, aFrame, sizeof(aFrame), iOff);
-    }
-  }
-
-  tdsqlite3_free(aBuf);
-  return rc;
-}
-
-/* 
-** Write a set of frames to the log. The caller must hold the write-lock
-** on the log file (obtained using tdsqlite3WalBeginWriteTransaction()).
-*/
-SQLITE_PRIVATE int tdsqlite3WalFrames(
-  Wal *pWal,                      /* Wal handle to write to */
-  int szPage,                     /* Database page-size in bytes */
-  PgHdr *pList,                   /* List of dirty pages to write */
-  Pgno nTruncate,                 /* Database size after this commit */
-  int isCommit,                   /* True if this is a commit */
-  int sync_flags                  /* Flags to pass to OsSync() (or 0) */
-){
-  int rc;                         /* Used to catch return codes */
-  u32 iFrame;                     /* Next frame address */
-  PgHdr *p;                       /* Iterator to run through pList with. */
-  PgHdr *pLast = 0;               /* Last frame in list */
-  int nExtra = 0;                 /* Number of extra copies of last page */
-  int szFrame;                    /* The size of a single frame */
-  i64 iOffset;                    /* Next byte to write in WAL file */
-  WalWriter w;                    /* The writer */
-  u32 iFirst = 0;                 /* First frame that may be overwritten */
-  WalIndexHdr *pLive;             /* Pointer to shared header */
-
-  assert( pList );
-  assert( pWal->writeLock );
-
-  /* If this frame set completes a transaction, then nTruncate>0.  If
-  ** nTruncate==0 then this frame set does not complete the transaction. */
-  assert( (isCommit!=0)==(nTruncate!=0) );
-
-#if defined(SQLITE_TEST) && defined(SQLITE_DEBUG)
-  { int cnt; for(cnt=0, p=pList; p; p=p->pDirty, cnt++){}
-    WALTRACE(("WAL%p: frame write begin. %d frames. mxFrame=%d. %s\n",
-              pWal, cnt, pWal->hdr.mxFrame, isCommit ? "Commit" : "Spill"));
-  }
-#endif
-
-  pLive = (WalIndexHdr*)walIndexHdr(pWal);
-  if( memcmp(&pWal->hdr, (void *)pLive, sizeof(WalIndexHdr))!=0 ){
-    iFirst = pLive->mxFrame+1;
-  }
-
-  /* See if it is possible to write these frames into the start of the
-  ** log file, instead of appending to it at pWal->hdr.mxFrame.
-  */
-  if( SQLITE_OK!=(rc = walRestartLog(pWal)) ){
-    return rc;
-  }
-
-  /* If this is the first frame written into the log, write the WAL
-  ** header to the start of the WAL file. See comments at the top of
-  ** this source file for a description of the WAL header format.
-  */
-  iFrame = pWal->hdr.mxFrame;
-  if( iFrame==0 ){
-    u8 aWalHdr[WAL_HDRSIZE];      /* Buffer to assemble wal-header in */
-    u32 aCksum[2];                /* Checksum for wal-header */
-
-    tdsqlite3Put4byte(&aWalHdr[0], (WAL_MAGIC | SQLITE_BIGENDIAN));
-    tdsqlite3Put4byte(&aWalHdr[4], WAL_MAX_VERSION);
-    tdsqlite3Put4byte(&aWalHdr[8], szPage);
-    tdsqlite3Put4byte(&aWalHdr[12], pWal->nCkpt);
-    if( pWal->nCkpt==0 ) tdsqlite3_randomness(8, pWal->hdr.aSalt);
-    memcpy(&aWalHdr[16], pWal->hdr.aSalt, 8);
-    walChecksumBytes(1, aWalHdr, WAL_HDRSIZE-2*4, 0, aCksum);
-    tdsqlite3Put4byte(&aWalHdr[24], aCksum[0]);
-    tdsqlite3Put4byte(&aWalHdr[28], aCksum[1]);
-    
-    pWal->szPage = szPage;
-    pWal->hdr.bigEndCksum = SQLITE_BIGENDIAN;
-    pWal->hdr.aFrameCksum[0] = aCksum[0];
-    pWal->hdr.aFrameCksum[1] = aCksum[1];
-    pWal->truncateOnCommit = 1;
-
-    rc = tdsqlite3OsWrite(pWal->pWalFd, aWalHdr, sizeof(aWalHdr), 0);
-    WALTRACE(("WAL%p: wal-header write %s\n", pWal, rc ? "failed" : "ok"));
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-
-    /* Sync the header (unless SQLITE_IOCAP_SEQUENTIAL is true or unless
-    ** all syncing is turned off by PRAGMA synchronous=OFF).  Otherwise
-    ** an out-of-order write following a WAL restart could result in
-    ** database corruption.  See the ticket:
-    **
-    **     https://sqlite.org/src/info/ff5be73dee
-    */
-    if( pWal->syncHeader ){
-      rc = tdsqlite3OsSync(pWal->pWalFd, CKPT_SYNC_FLAGS(sync_flags));
-      if( rc ) return rc;
-    }
-  }
-  assert( (int)pWal->szPage==szPage );
-
-  /* Setup information needed to write frames into the WAL */
-  w.pWal = pWal;
-  w.pFd = pWal->pWalFd;
-  w.iSyncPoint = 0;
-  w.syncFlags = sync_flags;
-  w.szPage = szPage;
-  iOffset = walFrameOffset(iFrame+1, szPage);
-  szFrame = szPage + WAL_FRAME_HDRSIZE;
-
-  /* Write all frames into the log file exactly once */
-  for(p=pList; p; p=p->pDirty){
-    int nDbSize;   /* 0 normally.  Positive == commit flag */
-
-    /* Check if this page has already been written into the wal file by
-    ** the current transaction. If so, overwrite the existing frame and
-    ** set Wal.writeLock to WAL_WRITELOCK_RECKSUM - indicating that 
-    ** checksums must be recomputed when the transaction is committed.  */
-    if( iFirst && (p->pDirty || isCommit==0) ){
-      u32 iWrite = 0;
-      VVA_ONLY(rc =) tdsqlite3WalFindFrame(pWal, p->pgno, &iWrite);
-      assert( rc==SQLITE_OK || iWrite==0 );
-      if( iWrite>=iFirst ){
-        i64 iOff = walFrameOffset(iWrite, szPage) + WAL_FRAME_HDRSIZE;
-        void *pData;
-        if( pWal->iReCksum==0 || iWrite<pWal->iReCksum ){
-          pWal->iReCksum = iWrite;
-        }
-#if defined(SQLITE_HAS_CODEC)
-        if( (pData = tdsqlite3PagerCodec(p))==0 ) return SQLITE_NOMEM;
-#else
-        pData = p->pData;
-#endif
-        rc = tdsqlite3OsWrite(pWal->pWalFd, pData, szPage, iOff);
-        if( rc ) return rc;
-        p->flags &= ~PGHDR_WAL_APPEND;
-        continue;
-      }
-    }
-
-    iFrame++;
-    assert( iOffset==walFrameOffset(iFrame, szPage) );
-    nDbSize = (isCommit && p->pDirty==0) ? nTruncate : 0;
-    rc = walWriteOneFrame(&w, p, nDbSize, iOffset);
-    if( rc ) return rc;
-    pLast = p;
-    iOffset += szFrame;
-    p->flags |= PGHDR_WAL_APPEND;
-  }
-
-  /* Recalculate checksums within the wal file if required. */
-  if( isCommit && pWal->iReCksum ){
-    rc = walRewriteChecksums(pWal, iFrame);
-    if( rc ) return rc;
-  }
-
-  /* If this is the end of a transaction, then we might need to pad
-  ** the transaction and/or sync the WAL file.
-  **
-  ** Padding and syncing only occur if this set of frames complete a
-  ** transaction and if PRAGMA synchronous=FULL.  If synchronous==NORMAL
-  ** or synchronous==OFF, then no padding or syncing are needed.
-  **
-  ** If SQLITE_IOCAP_POWERSAFE_OVERWRITE is defined, then padding is not
-  ** needed and only the sync is done.  If padding is needed, then the
-  ** final frame is repeated (with its commit mark) until the next sector
-  ** boundary is crossed.  Only the part of the WAL prior to the last
-  ** sector boundary is synced; the part of the last frame that extends
-  ** past the sector boundary is written after the sync.
-  */
-  if( isCommit && WAL_SYNC_FLAGS(sync_flags)!=0 ){
-    int bSync = 1;
-    if( pWal->padToSectorBoundary ){
-      int sectorSize = tdsqlite3SectorSize(pWal->pWalFd);
-      w.iSyncPoint = ((iOffset+sectorSize-1)/sectorSize)*sectorSize;
-      bSync = (w.iSyncPoint==iOffset);
-      testcase( bSync );
-      while( iOffset<w.iSyncPoint ){
-        rc = walWriteOneFrame(&w, pLast, nTruncate, iOffset);
-        if( rc ) return rc;
-        iOffset += szFrame;
-        nExtra++;
-        assert( pLast!=0 );
-      }
-    }
-    if( bSync ){
-      assert( rc==SQLITE_OK );
-      rc = tdsqlite3OsSync(w.pFd, WAL_SYNC_FLAGS(sync_flags));
-    }
-  }
-
-  /* If this frame set completes the first transaction in the WAL and
-  ** if PRAGMA journal_size_limit is set, then truncate the WAL to the
-  ** journal size limit, if possible.
-  */
-  if( isCommit && pWal->truncateOnCommit && pWal->mxWalSize>=0 ){
-    i64 sz = pWal->mxWalSize;
-    if( walFrameOffset(iFrame+nExtra+1, szPage)>pWal->mxWalSize ){
-      sz = walFrameOffset(iFrame+nExtra+1, szPage);
-    }
-    walLimitSize(pWal, sz);
-    pWal->truncateOnCommit = 0;
-  }
-
-  /* Append data to the wal-index. It is not necessary to lock the 
-  ** wal-index to do this as the SQLITE_SHM_WRITE lock held on the wal-index
-  ** guarantees that there are no other writers, and no data that may
-  ** be in use by existing readers is being overwritten.
-  */
-  iFrame = pWal->hdr.mxFrame;
-  for(p=pList; p && rc==SQLITE_OK; p=p->pDirty){
-    if( (p->flags & PGHDR_WAL_APPEND)==0 ) continue;
-    iFrame++;
-    rc = walIndexAppend(pWal, iFrame, p->pgno);
-  }
-  assert( pLast!=0 || nExtra==0 );
-  while( rc==SQLITE_OK && nExtra>0 ){
-    iFrame++;
-    nExtra--;
-    rc = walIndexAppend(pWal, iFrame, pLast->pgno);
-  }
-
-  if( rc==SQLITE_OK ){
-    /* Update the private copy of the header. */
-    pWal->hdr.szPage = (u16)((szPage&0xff00) | (szPage>>16));
-    testcase( szPage<=32768 );
-    testcase( szPage>=65536 );
-    pWal->hdr.mxFrame = iFrame;
-    if( isCommit ){
-      pWal->hdr.iChange++;
-      pWal->hdr.nPage = nTruncate;
-    }
-    /* If this is a commit, update the wal-index header too. */
-    if( isCommit ){
-      walIndexWriteHdr(pWal);
-      pWal->iCallback = iFrame;
-    }
-  }
-
-  WALTRACE(("WAL%p: frame write %s\n", pWal, rc ? "failed" : "ok"));
-  return rc;
-}
-
-/* 
-** This routine is called to implement tdsqlite3_wal_checkpoint() and
-** related interfaces.
-**
-** Obtain a CHECKPOINT lock and then backfill as much information as
-** we can from WAL into the database.
-**
-** If parameter xBusy is not NULL, it is a pointer to a busy-handler
-** callback. In this case this function runs a blocking checkpoint.
-*/
-SQLITE_PRIVATE int tdsqlite3WalCheckpoint(
-  Wal *pWal,                      /* Wal connection */
-  tdsqlite3 *db,                    /* Check this handle's interrupt flag */
-  int eMode,                      /* PASSIVE, FULL, RESTART, or TRUNCATE */
-  int (*xBusy)(void*),            /* Function to call when busy */
-  void *pBusyArg,                 /* Context argument for xBusyHandler */
-  int sync_flags,                 /* Flags to sync db file with (or 0) */
-  int nBuf,                       /* Size of temporary buffer */
-  u8 *zBuf,                       /* Temporary buffer to use */
-  int *pnLog,                     /* OUT: Number of frames in WAL */
-  int *pnCkpt                     /* OUT: Number of backfilled frames in WAL */
-){
-  int rc;                         /* Return code */
-  int isChanged = 0;              /* True if a new wal-index header is loaded */
-  int eMode2 = eMode;             /* Mode to pass to walCheckpoint() */
-  int (*xBusy2)(void*) = xBusy;   /* Busy handler for eMode2 */
-
-  assert( pWal->ckptLock==0 );
-  assert( pWal->writeLock==0 );
-
-  /* EVIDENCE-OF: R-62920-47450 The busy-handler callback is never invoked
-  ** in the SQLITE_CHECKPOINT_PASSIVE mode. */
-  assert( eMode!=SQLITE_CHECKPOINT_PASSIVE || xBusy==0 );
-
-  if( pWal->readOnly ) return SQLITE_READONLY;
-  WALTRACE(("WAL%p: checkpoint begins\n", pWal));
-
-  /* IMPLEMENTATION-OF: R-62028-47212 All calls obtain an exclusive 
-  ** "checkpoint" lock on the database file. */
-  rc = walLockExclusive(pWal, WAL_CKPT_LOCK, 1);
-  if( rc ){
-    /* EVIDENCE-OF: R-10421-19736 If any other process is running a
-    ** checkpoint operation at the same time, the lock cannot be obtained and
-    ** SQLITE_BUSY is returned.
-    ** EVIDENCE-OF: R-53820-33897 Even if there is a busy-handler configured,
-    ** it will not be invoked in this case.
-    */
-    testcase( rc==SQLITE_BUSY );
-    testcase( xBusy!=0 );
-    return rc;
-  }
-  pWal->ckptLock = 1;
-
-  /* IMPLEMENTATION-OF: R-59782-36818 The SQLITE_CHECKPOINT_FULL, RESTART and
-  ** TRUNCATE modes also obtain the exclusive "writer" lock on the database
-  ** file.
-  **
-  ** EVIDENCE-OF: R-60642-04082 If the writer lock cannot be obtained
-  ** immediately, and a busy-handler is configured, it is invoked and the
-  ** writer lock retried until either the busy-handler returns 0 or the
-  ** lock is successfully obtained.
-  */
-  if( eMode!=SQLITE_CHECKPOINT_PASSIVE ){
-    rc = walBusyLock(pWal, xBusy, pBusyArg, WAL_WRITE_LOCK, 1);
-    if( rc==SQLITE_OK ){
-      pWal->writeLock = 1;
-    }else if( rc==SQLITE_BUSY ){
-      eMode2 = SQLITE_CHECKPOINT_PASSIVE;
-      xBusy2 = 0;
-      rc = SQLITE_OK;
-    }
-  }
-
-  /* Read the wal-index header. */
-  if( rc==SQLITE_OK ){
-    rc = walIndexReadHdr(pWal, &isChanged);
-    if( isChanged && pWal->pDbFd->pMethods->iVersion>=3 ){
-      tdsqlite3OsUnfetch(pWal->pDbFd, 0, 0);
-    }
-  }
-
-  /* Copy data from the log to the database file. */
-  if( rc==SQLITE_OK ){
-
-    if( pWal->hdr.mxFrame && walPagesize(pWal)!=nBuf ){
-      rc = SQLITE_CORRUPT_BKPT;
-    }else{
-      rc = walCheckpoint(pWal, db, eMode2, xBusy2, pBusyArg, sync_flags, zBuf);
-    }
-
-    /* If no error occurred, set the output variables. */
-    if( rc==SQLITE_OK || rc==SQLITE_BUSY ){
-      if( pnLog ) *pnLog = (int)pWal->hdr.mxFrame;
-      if( pnCkpt ) *pnCkpt = (int)(walCkptInfo(pWal)->nBackfill);
-    }
-  }
-
-  if( isChanged ){
-    /* If a new wal-index header was loaded before the checkpoint was 
-    ** performed, then the pager-cache associated with pWal is now
-    ** out of date. So zero the cached wal-index header to ensure that
-    ** next time the pager opens a snapshot on this database it knows that
-    ** the cache needs to be reset.
-    */
-    memset(&pWal->hdr, 0, sizeof(WalIndexHdr));
-  }
-
-  /* Release the locks. */
-  tdsqlite3WalEndWriteTransaction(pWal);
-  walUnlockExclusive(pWal, WAL_CKPT_LOCK, 1);
-  pWal->ckptLock = 0;
-  WALTRACE(("WAL%p: checkpoint %s\n", pWal, rc ? "failed" : "ok"));
-  return (rc==SQLITE_OK && eMode!=eMode2 ? SQLITE_BUSY : rc);
-}
-
-/* Return the value to pass to a tdsqlite3_wal_hook callback, the
-** number of frames in the WAL at the point of the last commit since
-** tdsqlite3WalCallback() was called.  If no commits have occurred since
-** the last call, then return 0.
-*/
-SQLITE_PRIVATE int tdsqlite3WalCallback(Wal *pWal){
-  u32 ret = 0;
-  if( pWal ){
-    ret = pWal->iCallback;
-    pWal->iCallback = 0;
-  }
-  return (int)ret;
-}
-
-/*
-** This function is called to change the WAL subsystem into or out
-** of locking_mode=EXCLUSIVE.
-**
-** If op is zero, then attempt to change from locking_mode=EXCLUSIVE
-** into locking_mode=NORMAL.  This means that we must acquire a lock
-** on the pWal->readLock byte.  If the WAL is already in locking_mode=NORMAL
-** or if the acquisition of the lock fails, then return 0.  If the
-** transition out of exclusive-mode is successful, return 1.  This
-** operation must occur while the pager is still holding the exclusive
-** lock on the main database file.
-**
-** If op is one, then change from locking_mode=NORMAL into 
-** locking_mode=EXCLUSIVE.  This means that the pWal->readLock must
-** be released.  Return 1 if the transition is made and 0 if the
-** WAL is already in exclusive-locking mode - meaning that this
-** routine is a no-op.  The pager must already hold the exclusive lock
-** on the main database file before invoking this operation.
-**
-** If op is negative, then do a dry-run of the op==1 case but do
-** not actually change anything. The pager uses this to see if it
-** should acquire the database exclusive lock prior to invoking
-** the op==1 case.
-*/
-SQLITE_PRIVATE int tdsqlite3WalExclusiveMode(Wal *pWal, int op){
-  int rc;
-  assert( pWal->writeLock==0 );
-  assert( pWal->exclusiveMode!=WAL_HEAPMEMORY_MODE || op==-1 );
-
-  /* pWal->readLock is usually set, but might be -1 if there was a 
-  ** prior error while attempting to acquire are read-lock. This cannot 
-  ** happen if the connection is actually in exclusive mode (as no xShmLock
-  ** locks are taken in this case). Nor should the pager attempt to
-  ** upgrade to exclusive-mode following such an error.
-  */
-  assert( pWal->readLock>=0 || pWal->lockError );
-  assert( pWal->readLock>=0 || (op<=0 && pWal->exclusiveMode==0) );
-
-  if( op==0 ){
-    if( pWal->exclusiveMode!=WAL_NORMAL_MODE ){
-      pWal->exclusiveMode = WAL_NORMAL_MODE;
-      if( walLockShared(pWal, WAL_READ_LOCK(pWal->readLock))!=SQLITE_OK ){
-        pWal->exclusiveMode = WAL_EXCLUSIVE_MODE;
-      }
-      rc = pWal->exclusiveMode==WAL_NORMAL_MODE;
-    }else{
-      /* Already in locking_mode=NORMAL */
-      rc = 0;
-    }
-  }else if( op>0 ){
-    assert( pWal->exclusiveMode==WAL_NORMAL_MODE );
-    assert( pWal->readLock>=0 );
-    walUnlockShared(pWal, WAL_READ_LOCK(pWal->readLock));
-    pWal->exclusiveMode = WAL_EXCLUSIVE_MODE;
-    rc = 1;
-  }else{
-    rc = pWal->exclusiveMode==WAL_NORMAL_MODE;
-  }
-  return rc;
-}
-
-/* 
-** Return true if the argument is non-NULL and the WAL module is using
-** heap-memory for the wal-index. Otherwise, if the argument is NULL or the
-** WAL module is using shared-memory, return false. 
-*/
-SQLITE_PRIVATE int tdsqlite3WalHeapMemory(Wal *pWal){
-  return (pWal && pWal->exclusiveMode==WAL_HEAPMEMORY_MODE );
-}
-
-#ifdef SQLITE_ENABLE_SNAPSHOT
-/* Create a snapshot object.  The content of a snapshot is opaque to
-** every other subsystem, so the WAL module can put whatever it needs
-** in the object.
-*/
-SQLITE_PRIVATE int tdsqlite3WalSnapshotGet(Wal *pWal, tdsqlite3_snapshot **ppSnapshot){
-  int rc = SQLITE_OK;
-  WalIndexHdr *pRet;
-  static const u32 aZero[4] = { 0, 0, 0, 0 };
-
-  assert( pWal->readLock>=0 && pWal->writeLock==0 );
-
-  if( memcmp(&pWal->hdr.aFrameCksum[0],aZero,16)==0 ){
-    *ppSnapshot = 0;
-    return SQLITE_ERROR;
-  }
-  pRet = (WalIndexHdr*)tdsqlite3_malloc(sizeof(WalIndexHdr));
-  if( pRet==0 ){
-    rc = SQLITE_NOMEM_BKPT;
-  }else{
-    memcpy(pRet, &pWal->hdr, sizeof(WalIndexHdr));
-    *ppSnapshot = (tdsqlite3_snapshot*)pRet;
-  }
-
-  return rc;
-}
-
-/* Try to open on pSnapshot when the next read-transaction starts
-*/
-SQLITE_PRIVATE void tdsqlite3WalSnapshotOpen(Wal *pWal, tdsqlite3_snapshot *pSnapshot){
-  pWal->pSnapshot = (WalIndexHdr*)pSnapshot;
-}
-
-/* 
-** Return a +ve value if snapshot p1 is newer than p2. A -ve value if
-** p1 is older than p2 and zero if p1 and p2 are the same snapshot.
-*/
-SQLITE_API int tdsqlite3_snapshot_cmp(tdsqlite3_snapshot *p1, tdsqlite3_snapshot *p2){
-  WalIndexHdr *pHdr1 = (WalIndexHdr*)p1;
-  WalIndexHdr *pHdr2 = (WalIndexHdr*)p2;
-
-  /* aSalt[0] is a copy of the value stored in the wal file header. It
-  ** is incremented each time the wal file is restarted.  */
-  if( pHdr1->aSalt[0]<pHdr2->aSalt[0] ) return -1;
-  if( pHdr1->aSalt[0]>pHdr2->aSalt[0] ) return +1;
-  if( pHdr1->mxFrame<pHdr2->mxFrame ) return -1;
-  if( pHdr1->mxFrame>pHdr2->mxFrame ) return +1;
-  return 0;
-}
-
-/*
-** The caller currently has a read transaction open on the database.
-** This function takes a SHARED lock on the CHECKPOINTER slot and then
-** checks if the snapshot passed as the second argument is still 
-** available. If so, SQLITE_OK is returned.
-**
-** If the snapshot is not available, SQLITE_ERROR is returned. Or, if
-** the CHECKPOINTER lock cannot be obtained, SQLITE_BUSY. If any error
-** occurs (any value other than SQLITE_OK is returned), the CHECKPOINTER
-** lock is released before returning.
-*/
-SQLITE_PRIVATE int tdsqlite3WalSnapshotCheck(Wal *pWal, tdsqlite3_snapshot *pSnapshot){
-  int rc;
-  rc = walLockShared(pWal, WAL_CKPT_LOCK);
-  if( rc==SQLITE_OK ){
-    WalIndexHdr *pNew = (WalIndexHdr*)pSnapshot;
-    if( memcmp(pNew->aSalt, pWal->hdr.aSalt, sizeof(pWal->hdr.aSalt))
-     || pNew->mxFrame<walCkptInfo(pWal)->nBackfillAttempted
-    ){
-      rc = SQLITE_ERROR_SNAPSHOT;
-      walUnlockShared(pWal, WAL_CKPT_LOCK);
-    }
-  }
-  return rc;
-}
-
-/*
-** Release a lock obtained by an earlier successful call to
-** tdsqlite3WalSnapshotCheck().
-*/
-SQLITE_PRIVATE void tdsqlite3WalSnapshotUnlock(Wal *pWal){
-  assert( pWal );
-  walUnlockShared(pWal, WAL_CKPT_LOCK);
-}
-
-
-#endif /* SQLITE_ENABLE_SNAPSHOT */
-
-#ifdef SQLITE_ENABLE_ZIPVFS
-/*
-** If the argument is not NULL, it points to a Wal object that holds a
-** read-lock. This function returns the database page-size if it is known,
-** or zero if it is not (or if pWal is NULL).
-*/
-SQLITE_PRIVATE int tdsqlite3WalFramesize(Wal *pWal){
-  assert( pWal==0 || pWal->readLock>=0 );
-  return (pWal ? pWal->szPage : 0);
-}
-#endif
-
-/* Return the tdsqlite3_file object for the WAL file
-*/
-SQLITE_PRIVATE tdsqlite3_file *tdsqlite3WalFile(Wal *pWal){
-  return pWal->pWalFd;
-}
-
-#endif /* #ifndef SQLITE_OMIT_WAL */
-
-/************** End of wal.c *************************************************/
-/************** Begin file btmutex.c *****************************************/
-/*
-** 2007 August 27
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains code used to implement mutexes on Btree objects.
-** This code really belongs in btree.c.  But btree.c is getting too
-** big and we want to break it down some.  This packaged seemed like
-** a good breakout.
-*/
-/* #include "btreeInt.h" */
-#ifndef SQLITE_OMIT_SHARED_CACHE
-#if SQLITE_THREADSAFE
-
-/*
-** Obtain the BtShared mutex associated with B-Tree handle p. Also,
-** set BtShared.db to the database handle associated with p and the
-** p->locked boolean to true.
-*/
-static void lockBtreeMutex(Btree *p){
-  assert( p->locked==0 );
-  assert( tdsqlite3_mutex_notheld(p->pBt->mutex) );
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-
-  tdsqlite3_mutex_enter(p->pBt->mutex);
-  p->pBt->db = p->db;
-  p->locked = 1;
-}
-
-/*
-** Release the BtShared mutex associated with B-Tree handle p and
-** clear the p->locked boolean.
-*/
-static void SQLITE_NOINLINE unlockBtreeMutex(Btree *p){
-  BtShared *pBt = p->pBt;
-  assert( p->locked==1 );
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  assert( p->db==pBt->db );
-
-  tdsqlite3_mutex_leave(pBt->mutex);
-  p->locked = 0;
-}
-
-/* Forward reference */
-static void SQLITE_NOINLINE btreeLockCarefully(Btree *p);
-
-/*
-** Enter a mutex on the given BTree object.
-**
-** If the object is not sharable, then no mutex is ever required
-** and this routine is a no-op.  The underlying mutex is non-recursive.
-** But we keep a reference count in Btree.wantToLock so the behavior
-** of this interface is recursive.
-**
-** To avoid deadlocks, multiple Btrees are locked in the same order
-** by all database connections.  The p->pNext is a list of other
-** Btrees belonging to the same database connection as the p Btree
-** which need to be locked after p.  If we cannot get a lock on
-** p, then first unlock all of the others on p->pNext, then wait
-** for the lock to become available on p, then relock all of the
-** subsequent Btrees that desire a lock.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeEnter(Btree *p){
-  /* Some basic sanity checking on the Btree.  The list of Btrees
-  ** connected by pNext and pPrev should be in sorted order by
-  ** Btree.pBt value. All elements of the list should belong to
-  ** the same connection. Only shared Btrees are on the list. */
-  assert( p->pNext==0 || p->pNext->pBt>p->pBt );
-  assert( p->pPrev==0 || p->pPrev->pBt<p->pBt );
-  assert( p->pNext==0 || p->pNext->db==p->db );
-  assert( p->pPrev==0 || p->pPrev->db==p->db );
-  assert( p->sharable || (p->pNext==0 && p->pPrev==0) );
-
-  /* Check for locking consistency */
-  assert( !p->locked || p->wantToLock>0 );
-  assert( p->sharable || p->wantToLock==0 );
-
-  /* We should already hold a lock on the database connection */
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-
-  /* Unless the database is sharable and unlocked, then BtShared.db
-  ** should already be set correctly. */
-  assert( (p->locked==0 && p->sharable) || p->pBt->db==p->db );
-
-  if( !p->sharable ) return;
-  p->wantToLock++;
-  if( p->locked ) return;
-  btreeLockCarefully(p);
-}
-
-/* This is a helper function for tdsqlite3BtreeLock(). By moving
-** complex, but seldom used logic, out of tdsqlite3BtreeLock() and
-** into this routine, we avoid unnecessary stack pointer changes
-** and thus help the tdsqlite3BtreeLock() routine to run much faster
-** in the common case.
-*/
-static void SQLITE_NOINLINE btreeLockCarefully(Btree *p){
-  Btree *pLater;
-
-  /* In most cases, we should be able to acquire the lock we
-  ** want without having to go through the ascending lock
-  ** procedure that follows.  Just be sure not to block.
-  */
-  if( tdsqlite3_mutex_try(p->pBt->mutex)==SQLITE_OK ){
-    p->pBt->db = p->db;
-    p->locked = 1;
-    return;
-  }
-
-  /* To avoid deadlock, first release all locks with a larger
-  ** BtShared address.  Then acquire our lock.  Then reacquire
-  ** the other BtShared locks that we used to hold in ascending
-  ** order.
-  */
-  for(pLater=p->pNext; pLater; pLater=pLater->pNext){
-    assert( pLater->sharable );
-    assert( pLater->pNext==0 || pLater->pNext->pBt>pLater->pBt );
-    assert( !pLater->locked || pLater->wantToLock>0 );
-    if( pLater->locked ){
-      unlockBtreeMutex(pLater);
-    }
-  }
-  lockBtreeMutex(p);
-  for(pLater=p->pNext; pLater; pLater=pLater->pNext){
-    if( pLater->wantToLock ){
-      lockBtreeMutex(pLater);
-    }
-  }
-}
-
-
-/*
-** Exit the recursive mutex on a Btree.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeLeave(Btree *p){
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  if( p->sharable ){
-    assert( p->wantToLock>0 );
-    p->wantToLock--;
-    if( p->wantToLock==0 ){
-      unlockBtreeMutex(p);
-    }
-  }
-}
-
-#ifndef NDEBUG
-/*
-** Return true if the BtShared mutex is held on the btree, or if the
-** B-Tree is not marked as sharable.
-**
-** This routine is used only from within assert() statements.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeHoldsMutex(Btree *p){
-  assert( p->sharable==0 || p->locked==0 || p->wantToLock>0 );
-  assert( p->sharable==0 || p->locked==0 || p->db==p->pBt->db );
-  assert( p->sharable==0 || p->locked==0 || tdsqlite3_mutex_held(p->pBt->mutex) );
-  assert( p->sharable==0 || p->locked==0 || tdsqlite3_mutex_held(p->db->mutex) );
-
-  return (p->sharable==0 || p->locked);
-}
-#endif
-
-
-/*
-** Enter the mutex on every Btree associated with a database
-** connection.  This is needed (for example) prior to parsing
-** a statement since we will be comparing table and column names
-** against all schemas and we do not want those schemas being
-** reset out from under us.
-**
-** There is a corresponding leave-all procedures.
-**
-** Enter the mutexes in accending order by BtShared pointer address
-** to avoid the possibility of deadlock when two threads with
-** two or more btrees in common both try to lock all their btrees
-** at the same instant.
-*/
-static void SQLITE_NOINLINE btreeEnterAll(tdsqlite3 *db){
-  int i;
-  int skipOk = 1;
-  Btree *p;
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  for(i=0; i<db->nDb; i++){
-    p = db->aDb[i].pBt;
-    if( p && p->sharable ){
-      tdsqlite3BtreeEnter(p);
-      skipOk = 0;
-    }
-  }
-  db->noSharedCache = skipOk;
-}
-SQLITE_PRIVATE void tdsqlite3BtreeEnterAll(tdsqlite3 *db){
-  if( db->noSharedCache==0 ) btreeEnterAll(db);
-}
-static void SQLITE_NOINLINE btreeLeaveAll(tdsqlite3 *db){
-  int i;
-  Btree *p;
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  for(i=0; i<db->nDb; i++){
-    p = db->aDb[i].pBt;
-    if( p ) tdsqlite3BtreeLeave(p);
-  }
-}
-SQLITE_PRIVATE void tdsqlite3BtreeLeaveAll(tdsqlite3 *db){
-  if( db->noSharedCache==0 ) btreeLeaveAll(db);
-}
-
-#ifndef NDEBUG
-/*
-** Return true if the current thread holds the database connection
-** mutex and all required BtShared mutexes.
-**
-** This routine is used inside assert() statements only.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeHoldsAllMutexes(tdsqlite3 *db){
-  int i;
-  if( !tdsqlite3_mutex_held(db->mutex) ){
-    return 0;
-  }
-  for(i=0; i<db->nDb; i++){
-    Btree *p;
-    p = db->aDb[i].pBt;
-    if( p && p->sharable &&
-         (p->wantToLock==0 || !tdsqlite3_mutex_held(p->pBt->mutex)) ){
-      return 0;
-    }
-  }
-  return 1;
-}
-#endif /* NDEBUG */
-
-#ifndef NDEBUG
-/*
-** Return true if the correct mutexes are held for accessing the
-** db->aDb[iDb].pSchema structure.  The mutexes required for schema
-** access are:
-**
-**   (1) The mutex on db
-**   (2) if iDb!=1, then the mutex on db->aDb[iDb].pBt.
-**
-** If pSchema is not NULL, then iDb is computed from pSchema and
-** db using tdsqlite3SchemaToIndex().
-*/
-SQLITE_PRIVATE int tdsqlite3SchemaMutexHeld(tdsqlite3 *db, int iDb, Schema *pSchema){
-  Btree *p;
-  assert( db!=0 );
-  if( pSchema ) iDb = tdsqlite3SchemaToIndex(db, pSchema);
-  assert( iDb>=0 && iDb<db->nDb );
-  if( !tdsqlite3_mutex_held(db->mutex) ) return 0;
-  if( iDb==1 ) return 1;
-  p = db->aDb[iDb].pBt;
-  assert( p!=0 );
-  return p->sharable==0 || p->locked==1;
-}
-#endif /* NDEBUG */
-
-#else /* SQLITE_THREADSAFE>0 above.  SQLITE_THREADSAFE==0 below */
-/*
-** The following are special cases for mutex enter routines for use
-** in single threaded applications that use shared cache.  Except for
-** these two routines, all mutex operations are no-ops in that case and
-** are null #defines in btree.h.
-**
-** If shared cache is disabled, then all btree mutex routines, including
-** the ones below, are no-ops and are null #defines in btree.h.
-*/
-
-SQLITE_PRIVATE void tdsqlite3BtreeEnter(Btree *p){
-  p->pBt->db = p->db;
-}
-SQLITE_PRIVATE void tdsqlite3BtreeEnterAll(tdsqlite3 *db){
-  int i;
-  for(i=0; i<db->nDb; i++){
-    Btree *p = db->aDb[i].pBt;
-    if( p ){
-      p->pBt->db = p->db;
-    }
-  }
-}
-#endif /* if SQLITE_THREADSAFE */
-
-#ifndef SQLITE_OMIT_INCRBLOB
-/*
-** Enter a mutex on a Btree given a cursor owned by that Btree. 
-**
-** These entry points are used by incremental I/O only. Enter() is required 
-** any time OMIT_SHARED_CACHE is not defined, regardless of whether or not 
-** the build is threadsafe. Leave() is only required by threadsafe builds.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeEnterCursor(BtCursor *pCur){
-  tdsqlite3BtreeEnter(pCur->pBtree);
-}
-# if SQLITE_THREADSAFE
-SQLITE_PRIVATE void tdsqlite3BtreeLeaveCursor(BtCursor *pCur){
-  tdsqlite3BtreeLeave(pCur->pBtree);
-}
-# endif
-#endif /* ifndef SQLITE_OMIT_INCRBLOB */
-
-#endif /* ifndef SQLITE_OMIT_SHARED_CACHE */
-
-/************** End of btmutex.c *********************************************/
-/************** Begin file btree.c *******************************************/
-/*
-** 2004 April 6
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file implements an external (disk-based) database using BTrees.
-** See the header comment on "btreeInt.h" for additional information.
-** Including a description of file format and an overview of operation.
-*/
-/* #include "btreeInt.h" */
-
-/*
-** The header string that appears at the beginning of every
-** SQLite database.
-*/
-static const char zMagicHeader[] = SQLITE_FILE_HEADER;
-
-/*
-** Set this global variable to 1 to enable tracing using the TRACE
-** macro.
-*/
-#if 0
-int tdsqlite3BtreeTrace=1;  /* True to enable tracing */
-# define TRACE(X)  if(tdsqlite3BtreeTrace){printf X;fflush(stdout);}
-#else
-# define TRACE(X)
-#endif
-
-/*
-** Extract a 2-byte big-endian integer from an array of unsigned bytes.
-** But if the value is zero, make it 65536.
-**
-** This routine is used to extract the "offset to cell content area" value
-** from the header of a btree page.  If the page size is 65536 and the page
-** is empty, the offset should be 65536, but the 2-byte value stores zero.
-** This routine makes the necessary adjustment to 65536.
-*/
-#define get2byteNotZero(X)  (((((int)get2byte(X))-1)&0xffff)+1)
-
-/*
-** Values passed as the 5th argument to allocateBtreePage()
-*/
-#define BTALLOC_ANY   0           /* Allocate any page */
-#define BTALLOC_EXACT 1           /* Allocate exact page if possible */
-#define BTALLOC_LE    2           /* Allocate any page <= the parameter */
-
-/*
-** Macro IfNotOmitAV(x) returns (x) if SQLITE_OMIT_AUTOVACUUM is not 
-** defined, or 0 if it is. For example:
-**
-**   bIncrVacuum = IfNotOmitAV(pBtShared->incrVacuum);
-*/
-#ifndef SQLITE_OMIT_AUTOVACUUM
-#define IfNotOmitAV(expr) (expr)
-#else
-#define IfNotOmitAV(expr) 0
-#endif
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-/*
-** A list of BtShared objects that are eligible for participation
-** in shared cache.  This variable has file scope during normal builds,
-** but the test harness needs to access it so we make it global for 
-** test builds.
-**
-** Access to this variable is protected by SQLITE_MUTEX_STATIC_MASTER.
-*/
-#ifdef SQLITE_TEST
-SQLITE_PRIVATE BtShared *SQLITE_WSD tdsqlite3SharedCacheList = 0;
-#else
-static BtShared *SQLITE_WSD tdsqlite3SharedCacheList = 0;
-#endif
-#endif /* SQLITE_OMIT_SHARED_CACHE */
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-/*
-** Enable or disable the shared pager and schema features.
-**
-** This routine has no effect on existing database connections.
-** The shared cache setting effects only future calls to
-** tdsqlite3_open(), tdsqlite3_open16(), or tdsqlite3_open_v2().
-*/
-SQLITE_API int tdsqlite3_enable_shared_cache(int enable){
-  tdsqlite3GlobalConfig.sharedCacheEnabled = enable;
-  return SQLITE_OK;
-}
-#endif
-
-
-
-#ifdef SQLITE_OMIT_SHARED_CACHE
-  /*
-  ** The functions querySharedCacheTableLock(), setSharedCacheTableLock(),
-  ** and clearAllSharedCacheTableLocks()
-  ** manipulate entries in the BtShared.pLock linked list used to store
-  ** shared-cache table level locks. If the library is compiled with the
-  ** shared-cache feature disabled, then there is only ever one user
-  ** of each BtShared structure and so this locking is not necessary. 
-  ** So define the lock related functions as no-ops.
-  */
-  #define querySharedCacheTableLock(a,b,c) SQLITE_OK
-  #define setSharedCacheTableLock(a,b,c) SQLITE_OK
-  #define clearAllSharedCacheTableLocks(a)
-  #define downgradeAllSharedCacheTableLocks(a)
-  #define hasSharedCacheTableLock(a,b,c,d) 1
-  #define hasReadConflicts(a, b) 0
-#endif
-
-/*
-** Implementation of the SQLITE_CORRUPT_PAGE() macro. Takes a single
-** (MemPage*) as an argument. The (MemPage*) must not be NULL.
-**
-** If SQLITE_DEBUG is not defined, then this macro is equivalent to
-** SQLITE_CORRUPT_BKPT. Or, if SQLITE_DEBUG is set, then the log message
-** normally produced as a side-effect of SQLITE_CORRUPT_BKPT is augmented
-** with the page number and filename associated with the (MemPage*).
-*/
-#ifdef SQLITE_DEBUG
-int corruptPageError(int lineno, MemPage *p){
-  char *zMsg;
-  tdsqlite3BeginBenignMalloc();
-  zMsg = tdsqlite3_mprintf("database corruption page %d of %s",
-      (int)p->pgno, tdsqlite3PagerFilename(p->pBt->pPager, 0)
-  );
-  tdsqlite3EndBenignMalloc();
-  if( zMsg ){
-    tdsqlite3ReportError(SQLITE_CORRUPT, lineno, zMsg);
-  }
-  tdsqlite3_free(zMsg);
-  return SQLITE_CORRUPT_BKPT;
-}
-# define SQLITE_CORRUPT_PAGE(pMemPage) corruptPageError(__LINE__, pMemPage)
-#else
-# define SQLITE_CORRUPT_PAGE(pMemPage) SQLITE_CORRUPT_PGNO(pMemPage->pgno)
-#endif
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-
-#ifdef SQLITE_DEBUG
-/*
-**** This function is only used as part of an assert() statement. ***
-**
-** Check to see if pBtree holds the required locks to read or write to the 
-** table with root page iRoot.   Return 1 if it does and 0 if not.
-**
-** For example, when writing to a table with root-page iRoot via 
-** Btree connection pBtree:
-**
-**    assert( hasSharedCacheTableLock(pBtree, iRoot, 0, WRITE_LOCK) );
-**
-** When writing to an index that resides in a sharable database, the 
-** caller should have first obtained a lock specifying the root page of
-** the corresponding table. This makes things a bit more complicated,
-** as this module treats each table as a separate structure. To determine
-** the table corresponding to the index being written, this
-** function has to search through the database schema.
-**
-** Instead of a lock on the table/index rooted at page iRoot, the caller may
-** hold a write-lock on the schema table (root page 1). This is also
-** acceptable.
-*/
-static int hasSharedCacheTableLock(
-  Btree *pBtree,         /* Handle that must hold lock */
-  Pgno iRoot,            /* Root page of b-tree */
-  int isIndex,           /* True if iRoot is the root of an index b-tree */
-  int eLockType          /* Required lock type (READ_LOCK or WRITE_LOCK) */
-){
-  Schema *pSchema = (Schema *)pBtree->pBt->pSchema;
-  Pgno iTab = 0;
-  BtLock *pLock;
-
-  /* If this database is not shareable, or if the client is reading
-  ** and has the read-uncommitted flag set, then no lock is required. 
-  ** Return true immediately.
-  */
-  if( (pBtree->sharable==0)
-   || (eLockType==READ_LOCK && (pBtree->db->flags & SQLITE_ReadUncommit))
-  ){
-    return 1;
-  }
-
-  /* If the client is reading  or writing an index and the schema is
-  ** not loaded, then it is too difficult to actually check to see if
-  ** the correct locks are held.  So do not bother - just return true.
-  ** This case does not come up very often anyhow.
-  */
-  if( isIndex && (!pSchema || (pSchema->schemaFlags&DB_SchemaLoaded)==0) ){
-    return 1;
-  }
-
-  /* Figure out the root-page that the lock should be held on. For table
-  ** b-trees, this is just the root page of the b-tree being read or
-  ** written. For index b-trees, it is the root page of the associated
-  ** table.  */
-  if( isIndex ){
-    HashElem *p;
-    for(p=sqliteHashFirst(&pSchema->idxHash); p; p=sqliteHashNext(p)){
-      Index *pIdx = (Index *)sqliteHashData(p);
-      if( pIdx->tnum==(int)iRoot ){
-        if( iTab ){
-          /* Two or more indexes share the same root page.  There must
-          ** be imposter tables.  So just return true.  The assert is not
-          ** useful in that case. */
-          return 1;
-        }
-        iTab = pIdx->pTable->tnum;
-      }
-    }
-  }else{
-    iTab = iRoot;
-  }
-
-  /* Search for the required lock. Either a write-lock on root-page iTab, a 
-  ** write-lock on the schema table, or (if the client is reading) a
-  ** read-lock on iTab will suffice. Return 1 if any of these are found.  */
-  for(pLock=pBtree->pBt->pLock; pLock; pLock=pLock->pNext){
-    if( pLock->pBtree==pBtree 
-     && (pLock->iTable==iTab || (pLock->eLock==WRITE_LOCK && pLock->iTable==1))
-     && pLock->eLock>=eLockType 
-    ){
-      return 1;
-    }
-  }
-
-  /* Failed to find the required lock. */
-  return 0;
-}
-#endif /* SQLITE_DEBUG */
-
-#ifdef SQLITE_DEBUG
-/*
-**** This function may be used as part of assert() statements only. ****
-**
-** Return true if it would be illegal for pBtree to write into the
-** table or index rooted at iRoot because other shared connections are
-** simultaneously reading that same table or index.
-**
-** It is illegal for pBtree to write if some other Btree object that
-** shares the same BtShared object is currently reading or writing
-** the iRoot table.  Except, if the other Btree object has the
-** read-uncommitted flag set, then it is OK for the other object to
-** have a read cursor.
-**
-** For example, before writing to any part of the table or index
-** rooted at page iRoot, one should call:
-**
-**    assert( !hasReadConflicts(pBtree, iRoot) );
-*/
-static int hasReadConflicts(Btree *pBtree, Pgno iRoot){
-  BtCursor *p;
-  for(p=pBtree->pBt->pCursor; p; p=p->pNext){
-    if( p->pgnoRoot==iRoot 
-     && p->pBtree!=pBtree
-     && 0==(p->pBtree->db->flags & SQLITE_ReadUncommit)
-    ){
-      return 1;
-    }
-  }
-  return 0;
-}
-#endif    /* #ifdef SQLITE_DEBUG */
-
-/*
-** Query to see if Btree handle p may obtain a lock of type eLock 
-** (READ_LOCK or WRITE_LOCK) on the table with root-page iTab. Return
-** SQLITE_OK if the lock may be obtained (by calling
-** setSharedCacheTableLock()), or SQLITE_LOCKED if not.
-*/
-static int querySharedCacheTableLock(Btree *p, Pgno iTab, u8 eLock){
-  BtShared *pBt = p->pBt;
-  BtLock *pIter;
-
-  assert( tdsqlite3BtreeHoldsMutex(p) );
-  assert( eLock==READ_LOCK || eLock==WRITE_LOCK );
-  assert( p->db!=0 );
-  assert( !(p->db->flags&SQLITE_ReadUncommit)||eLock==WRITE_LOCK||iTab==1 );
-  
-  /* If requesting a write-lock, then the Btree must have an open write
-  ** transaction on this file. And, obviously, for this to be so there 
-  ** must be an open write transaction on the file itself.
-  */
-  assert( eLock==READ_LOCK || (p==pBt->pWriter && p->inTrans==TRANS_WRITE) );
-  assert( eLock==READ_LOCK || pBt->inTransaction==TRANS_WRITE );
-  
-  /* This routine is a no-op if the shared-cache is not enabled */
-  if( !p->sharable ){
-    return SQLITE_OK;
-  }
-
-  /* If some other connection is holding an exclusive lock, the
-  ** requested lock may not be obtained.
-  */
-  if( pBt->pWriter!=p && (pBt->btsFlags & BTS_EXCLUSIVE)!=0 ){
-    tdsqlite3ConnectionBlocked(p->db, pBt->pWriter->db);
-    return SQLITE_LOCKED_SHAREDCACHE;
-  }
-
-  for(pIter=pBt->pLock; pIter; pIter=pIter->pNext){
-    /* The condition (pIter->eLock!=eLock) in the following if(...) 
-    ** statement is a simplification of:
-    **
-    **   (eLock==WRITE_LOCK || pIter->eLock==WRITE_LOCK)
-    **
-    ** since we know that if eLock==WRITE_LOCK, then no other connection
-    ** may hold a WRITE_LOCK on any table in this file (since there can
-    ** only be a single writer).
-    */
-    assert( pIter->eLock==READ_LOCK || pIter->eLock==WRITE_LOCK );
-    assert( eLock==READ_LOCK || pIter->pBtree==p || pIter->eLock==READ_LOCK);
-    if( pIter->pBtree!=p && pIter->iTable==iTab && pIter->eLock!=eLock ){
-      tdsqlite3ConnectionBlocked(p->db, pIter->pBtree->db);
-      if( eLock==WRITE_LOCK ){
-        assert( p==pBt->pWriter );
-        pBt->btsFlags |= BTS_PENDING;
-      }
-      return SQLITE_LOCKED_SHAREDCACHE;
-    }
-  }
-  return SQLITE_OK;
-}
-#endif /* !SQLITE_OMIT_SHARED_CACHE */
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-/*
-** Add a lock on the table with root-page iTable to the shared-btree used
-** by Btree handle p. Parameter eLock must be either READ_LOCK or 
-** WRITE_LOCK.
-**
-** This function assumes the following:
-**
-**   (a) The specified Btree object p is connected to a sharable
-**       database (one with the BtShared.sharable flag set), and
-**
-**   (b) No other Btree objects hold a lock that conflicts
-**       with the requested lock (i.e. querySharedCacheTableLock() has
-**       already been called and returned SQLITE_OK).
-**
-** SQLITE_OK is returned if the lock is added successfully. SQLITE_NOMEM 
-** is returned if a malloc attempt fails.
-*/
-static int setSharedCacheTableLock(Btree *p, Pgno iTable, u8 eLock){
-  BtShared *pBt = p->pBt;
-  BtLock *pLock = 0;
-  BtLock *pIter;
-
-  assert( tdsqlite3BtreeHoldsMutex(p) );
-  assert( eLock==READ_LOCK || eLock==WRITE_LOCK );
-  assert( p->db!=0 );
-
-  /* A connection with the read-uncommitted flag set will never try to
-  ** obtain a read-lock using this function. The only read-lock obtained
-  ** by a connection in read-uncommitted mode is on the sqlite_master 
-  ** table, and that lock is obtained in BtreeBeginTrans().  */
-  assert( 0==(p->db->flags&SQLITE_ReadUncommit) || eLock==WRITE_LOCK );
-
-  /* This function should only be called on a sharable b-tree after it 
-  ** has been determined that no other b-tree holds a conflicting lock.  */
-  assert( p->sharable );
-  assert( SQLITE_OK==querySharedCacheTableLock(p, iTable, eLock) );
-
-  /* First search the list for an existing lock on this table. */
-  for(pIter=pBt->pLock; pIter; pIter=pIter->pNext){
-    if( pIter->iTable==iTable && pIter->pBtree==p ){
-      pLock = pIter;
-      break;
-    }
-  }
-
-  /* If the above search did not find a BtLock struct associating Btree p
-  ** with table iTable, allocate one and link it into the list.
-  */
-  if( !pLock ){
-    pLock = (BtLock *)tdsqlite3MallocZero(sizeof(BtLock));
-    if( !pLock ){
-      return SQLITE_NOMEM_BKPT;
-    }
-    pLock->iTable = iTable;
-    pLock->pBtree = p;
-    pLock->pNext = pBt->pLock;
-    pBt->pLock = pLock;
-  }
-
-  /* Set the BtLock.eLock variable to the maximum of the current lock
-  ** and the requested lock. This means if a write-lock was already held
-  ** and a read-lock requested, we don't incorrectly downgrade the lock.
-  */
-  assert( WRITE_LOCK>READ_LOCK );
-  if( eLock>pLock->eLock ){
-    pLock->eLock = eLock;
-  }
-
-  return SQLITE_OK;
-}
-#endif /* !SQLITE_OMIT_SHARED_CACHE */
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-/*
-** Release all the table locks (locks obtained via calls to
-** the setSharedCacheTableLock() procedure) held by Btree object p.
-**
-** This function assumes that Btree p has an open read or write 
-** transaction. If it does not, then the BTS_PENDING flag
-** may be incorrectly cleared.
-*/
-static void clearAllSharedCacheTableLocks(Btree *p){
-  BtShared *pBt = p->pBt;
-  BtLock **ppIter = &pBt->pLock;
-
-  assert( tdsqlite3BtreeHoldsMutex(p) );
-  assert( p->sharable || 0==*ppIter );
-  assert( p->inTrans>0 );
-
-  while( *ppIter ){
-    BtLock *pLock = *ppIter;
-    assert( (pBt->btsFlags & BTS_EXCLUSIVE)==0 || pBt->pWriter==pLock->pBtree );
-    assert( pLock->pBtree->inTrans>=pLock->eLock );
-    if( pLock->pBtree==p ){
-      *ppIter = pLock->pNext;
-      assert( pLock->iTable!=1 || pLock==&p->lock );
-      if( pLock->iTable!=1 ){
-        tdsqlite3_free(pLock);
-      }
-    }else{
-      ppIter = &pLock->pNext;
-    }
-  }
-
-  assert( (pBt->btsFlags & BTS_PENDING)==0 || pBt->pWriter );
-  if( pBt->pWriter==p ){
-    pBt->pWriter = 0;
-    pBt->btsFlags &= ~(BTS_EXCLUSIVE|BTS_PENDING);
-  }else if( pBt->nTransaction==2 ){
-    /* This function is called when Btree p is concluding its 
-    ** transaction. If there currently exists a writer, and p is not
-    ** that writer, then the number of locks held by connections other
-    ** than the writer must be about to drop to zero. In this case
-    ** set the BTS_PENDING flag to 0.
-    **
-    ** If there is not currently a writer, then BTS_PENDING must
-    ** be zero already. So this next line is harmless in that case.
-    */
-    pBt->btsFlags &= ~BTS_PENDING;
-  }
-}
-
-/*
-** This function changes all write-locks held by Btree p into read-locks.
-*/
-static void downgradeAllSharedCacheTableLocks(Btree *p){
-  BtShared *pBt = p->pBt;
-  if( pBt->pWriter==p ){
-    BtLock *pLock;
-    pBt->pWriter = 0;
-    pBt->btsFlags &= ~(BTS_EXCLUSIVE|BTS_PENDING);
-    for(pLock=pBt->pLock; pLock; pLock=pLock->pNext){
-      assert( pLock->eLock==READ_LOCK || pLock->pBtree==p );
-      pLock->eLock = READ_LOCK;
-    }
-  }
-}
-
-#endif /* SQLITE_OMIT_SHARED_CACHE */
-
-static void releasePage(MemPage *pPage);         /* Forward reference */
-static void releasePageOne(MemPage *pPage);      /* Forward reference */
-static void releasePageNotNull(MemPage *pPage);  /* Forward reference */
-
-/*
-***** This routine is used inside of assert() only ****
-**
-** Verify that the cursor holds the mutex on its BtShared
-*/
-#ifdef SQLITE_DEBUG
-static int cursorHoldsMutex(BtCursor *p){
-  return tdsqlite3_mutex_held(p->pBt->mutex);
-}
-
-/* Verify that the cursor and the BtShared agree about what is the current
-** database connetion. This is important in shared-cache mode. If the database 
-** connection pointers get out-of-sync, it is possible for routines like
-** btreeInitPage() to reference an stale connection pointer that references a
-** a connection that has already closed.  This routine is used inside assert()
-** statements only and for the purpose of double-checking that the btree code
-** does keep the database connection pointers up-to-date.
-*/
-static int cursorOwnsBtShared(BtCursor *p){
-  assert( cursorHoldsMutex(p) );
-  return (p->pBtree->db==p->pBt->db);
-}
-#endif
-
-/*
-** Invalidate the overflow cache of the cursor passed as the first argument.
-** on the shared btree structure pBt.
-*/
-#define invalidateOverflowCache(pCur) (pCur->curFlags &= ~BTCF_ValidOvfl)
-
-/*
-** Invalidate the overflow page-list cache for all cursors opened
-** on the shared btree structure pBt.
-*/
-static void invalidateAllOverflowCache(BtShared *pBt){
-  BtCursor *p;
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  for(p=pBt->pCursor; p; p=p->pNext){
-    invalidateOverflowCache(p);
-  }
-}
-
-#ifndef SQLITE_OMIT_INCRBLOB
-/*
-** This function is called before modifying the contents of a table
-** to invalidate any incrblob cursors that are open on the
-** row or one of the rows being modified.
-**
-** If argument isClearTable is true, then the entire contents of the
-** table is about to be deleted. In this case invalidate all incrblob
-** cursors open on any row within the table with root-page pgnoRoot.
-**
-** Otherwise, if argument isClearTable is false, then the row with
-** rowid iRow is being replaced or deleted. In this case invalidate
-** only those incrblob cursors open on that specific row.
-*/
-static void invalidateIncrblobCursors(
-  Btree *pBtree,          /* The database file to check */
-  Pgno pgnoRoot,          /* The table that might be changing */
-  i64 iRow,               /* The rowid that might be changing */
-  int isClearTable        /* True if all rows are being deleted */
-){
-  BtCursor *p;
-  if( pBtree->hasIncrblobCur==0 ) return;
-  assert( tdsqlite3BtreeHoldsMutex(pBtree) );
-  pBtree->hasIncrblobCur = 0;
-  for(p=pBtree->pBt->pCursor; p; p=p->pNext){
-    if( (p->curFlags & BTCF_Incrblob)!=0 ){
-      pBtree->hasIncrblobCur = 1;
-      if( p->pgnoRoot==pgnoRoot && (isClearTable || p->info.nKey==iRow) ){
-        p->eState = CURSOR_INVALID;
-      }
-    }
-  }
-}
-
-#else
-  /* Stub function when INCRBLOB is omitted */
-  #define invalidateIncrblobCursors(w,x,y,z)
-#endif /* SQLITE_OMIT_INCRBLOB */
-
-/*
-** Set bit pgno of the BtShared.pHasContent bitvec. This is called 
-** when a page that previously contained data becomes a free-list leaf 
-** page.
-**
-** The BtShared.pHasContent bitvec exists to work around an obscure
-** bug caused by the interaction of two useful IO optimizations surrounding
-** free-list leaf pages:
-**
-**   1) When all data is deleted from a page and the page becomes
-**      a free-list leaf page, the page is not written to the database
-**      (as free-list leaf pages contain no meaningful data). Sometimes
-**      such a page is not even journalled (as it will not be modified,
-**      why bother journalling it?).
-**
-**   2) When a free-list leaf page is reused, its content is not read
-**      from the database or written to the journal file (why should it
-**      be, if it is not at all meaningful?).
-**
-** By themselves, these optimizations work fine and provide a handy
-** performance boost to bulk delete or insert operations. However, if
-** a page is moved to the free-list and then reused within the same
-** transaction, a problem comes up. If the page is not journalled when
-** it is moved to the free-list and it is also not journalled when it
-** is extracted from the free-list and reused, then the original data
-** may be lost. In the event of a rollback, it may not be possible
-** to restore the database to its original configuration.
-**
-** The solution is the BtShared.pHasContent bitvec. Whenever a page is 
-** moved to become a free-list leaf page, the corresponding bit is
-** set in the bitvec. Whenever a leaf page is extracted from the free-list,
-** optimization 2 above is omitted if the corresponding bit is already
-** set in BtShared.pHasContent. The contents of the bitvec are cleared
-** at the end of every transaction.
-*/
-static int btreeSetHasContent(BtShared *pBt, Pgno pgno){
-  int rc = SQLITE_OK;
-  if( !pBt->pHasContent ){
-    assert( pgno<=pBt->nPage );
-    pBt->pHasContent = tdsqlite3BitvecCreate(pBt->nPage);
-    if( !pBt->pHasContent ){
-      rc = SQLITE_NOMEM_BKPT;
-    }
-  }
-  if( rc==SQLITE_OK && pgno<=tdsqlite3BitvecSize(pBt->pHasContent) ){
-    rc = tdsqlite3BitvecSet(pBt->pHasContent, pgno);
-  }
-  return rc;
-}
-
-/*
-** Query the BtShared.pHasContent vector.
-**
-** This function is called when a free-list leaf page is removed from the
-** free-list for reuse. It returns false if it is safe to retrieve the
-** page from the pager layer with the 'no-content' flag set. True otherwise.
-*/
-static int btreeGetHasContent(BtShared *pBt, Pgno pgno){
-  Bitvec *p = pBt->pHasContent;
-  return (p && (pgno>tdsqlite3BitvecSize(p) || tdsqlite3BitvecTest(p, pgno)));
-}
-
-/*
-** Clear (destroy) the BtShared.pHasContent bitvec. This should be
-** invoked at the conclusion of each write-transaction.
-*/
-static void btreeClearHasContent(BtShared *pBt){
-  tdsqlite3BitvecDestroy(pBt->pHasContent);
-  pBt->pHasContent = 0;
-}
-
-/*
-** Release all of the apPage[] pages for a cursor.
-*/
-static void btreeReleaseAllCursorPages(BtCursor *pCur){
-  int i;
-  if( pCur->iPage>=0 ){
-    for(i=0; i<pCur->iPage; i++){
-      releasePageNotNull(pCur->apPage[i]);
-    }
-    releasePageNotNull(pCur->pPage);
-    pCur->iPage = -1;
-  }
-}
-
-/*
-** The cursor passed as the only argument must point to a valid entry
-** when this function is called (i.e. have eState==CURSOR_VALID). This
-** function saves the current cursor key in variables pCur->nKey and
-** pCur->pKey. SQLITE_OK is returned if successful or an SQLite error 
-** code otherwise.
-**
-** If the cursor is open on an intkey table, then the integer key
-** (the rowid) is stored in pCur->nKey and pCur->pKey is left set to
-** NULL. If the cursor is open on a non-intkey table, then pCur->pKey is 
-** set to point to a malloced buffer pCur->nKey bytes in size containing 
-** the key.
-*/
-static int saveCursorKey(BtCursor *pCur){
-  int rc = SQLITE_OK;
-  assert( CURSOR_VALID==pCur->eState );
-  assert( 0==pCur->pKey );
-  assert( cursorHoldsMutex(pCur) );
-
-  if( pCur->curIntKey ){
-    /* Only the rowid is required for a table btree */
-    pCur->nKey = tdsqlite3BtreeIntegerKey(pCur);
-  }else{
-    /* For an index btree, save the complete key content. It is possible
-    ** that the current key is corrupt. In that case, it is possible that
-    ** the tdsqlite3VdbeRecordUnpack() function may overread the buffer by
-    ** up to the size of 1 varint plus 1 8-byte value when the cursor 
-    ** position is restored. Hence the 17 bytes of padding allocated 
-    ** below. */
-    void *pKey;
-    pCur->nKey = tdsqlite3BtreePayloadSize(pCur);
-    pKey = tdsqlite3Malloc( pCur->nKey + 9 + 8 );
-    if( pKey ){
-      rc = tdsqlite3BtreePayload(pCur, 0, (int)pCur->nKey, pKey);
-      if( rc==SQLITE_OK ){
-        memset(((u8*)pKey)+pCur->nKey, 0, 9+8);
-        pCur->pKey = pKey;
-      }else{
-        tdsqlite3_free(pKey);
-      }
-    }else{
-      rc = SQLITE_NOMEM_BKPT;
-    }
-  }
-  assert( !pCur->curIntKey || !pCur->pKey );
-  return rc;
-}
-
-/*
-** Save the current cursor position in the variables BtCursor.nKey 
-** and BtCursor.pKey. The cursor's state is set to CURSOR_REQUIRESEEK.
-**
-** The caller must ensure that the cursor is valid (has eState==CURSOR_VALID)
-** prior to calling this routine.  
-*/
-static int saveCursorPosition(BtCursor *pCur){
-  int rc;
-
-  assert( CURSOR_VALID==pCur->eState || CURSOR_SKIPNEXT==pCur->eState );
-  assert( 0==pCur->pKey );
-  assert( cursorHoldsMutex(pCur) );
-
-  if( pCur->curFlags & BTCF_Pinned ){
-    return SQLITE_CONSTRAINT_PINNED;
-  }
-  if( pCur->eState==CURSOR_SKIPNEXT ){
-    pCur->eState = CURSOR_VALID;
-  }else{
-    pCur->skipNext = 0;
-  }
-
-  rc = saveCursorKey(pCur);
-  if( rc==SQLITE_OK ){
-    btreeReleaseAllCursorPages(pCur);
-    pCur->eState = CURSOR_REQUIRESEEK;
-  }
-
-  pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl|BTCF_AtLast);
-  return rc;
-}
-
-/* Forward reference */
-static int SQLITE_NOINLINE saveCursorsOnList(BtCursor*,Pgno,BtCursor*);
-
-/*
-** Save the positions of all cursors (except pExcept) that are open on
-** the table with root-page iRoot.  "Saving the cursor position" means that
-** the location in the btree is remembered in such a way that it can be
-** moved back to the same spot after the btree has been modified.  This
-** routine is called just before cursor pExcept is used to modify the
-** table, for example in BtreeDelete() or BtreeInsert().
-**
-** If there are two or more cursors on the same btree, then all such 
-** cursors should have their BTCF_Multiple flag set.  The btreeCursor()
-** routine enforces that rule.  This routine only needs to be called in
-** the uncommon case when pExpect has the BTCF_Multiple flag set.
-**
-** If pExpect!=NULL and if no other cursors are found on the same root-page,
-** then the BTCF_Multiple flag on pExpect is cleared, to avoid another
-** pointless call to this routine.
-**
-** Implementation note:  This routine merely checks to see if any cursors
-** need to be saved.  It calls out to saveCursorsOnList() in the (unusual)
-** event that cursors are in need to being saved.
-*/
-static int saveAllCursors(BtShared *pBt, Pgno iRoot, BtCursor *pExcept){
-  BtCursor *p;
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( pExcept==0 || pExcept->pBt==pBt );
-  for(p=pBt->pCursor; p; p=p->pNext){
-    if( p!=pExcept && (0==iRoot || p->pgnoRoot==iRoot) ) break;
-  }
-  if( p ) return saveCursorsOnList(p, iRoot, pExcept);
-  if( pExcept ) pExcept->curFlags &= ~BTCF_Multiple;
-  return SQLITE_OK;
-}
-
-/* This helper routine to saveAllCursors does the actual work of saving
-** the cursors if and when a cursor is found that actually requires saving.
-** The common case is that no cursors need to be saved, so this routine is
-** broken out from its caller to avoid unnecessary stack pointer movement.
-*/
-static int SQLITE_NOINLINE saveCursorsOnList(
-  BtCursor *p,         /* The first cursor that needs saving */
-  Pgno iRoot,          /* Only save cursor with this iRoot. Save all if zero */
-  BtCursor *pExcept    /* Do not save this cursor */
-){
-  do{
-    if( p!=pExcept && (0==iRoot || p->pgnoRoot==iRoot) ){
-      if( p->eState==CURSOR_VALID || p->eState==CURSOR_SKIPNEXT ){
-        int rc = saveCursorPosition(p);
-        if( SQLITE_OK!=rc ){
-          return rc;
-        }
-      }else{
-        testcase( p->iPage>=0 );
-        btreeReleaseAllCursorPages(p);
-      }
-    }
-    p = p->pNext;
-  }while( p );
-  return SQLITE_OK;
-}
-
-/*
-** Clear the current cursor position.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeClearCursor(BtCursor *pCur){
-  assert( cursorHoldsMutex(pCur) );
-  tdsqlite3_free(pCur->pKey);
-  pCur->pKey = 0;
-  pCur->eState = CURSOR_INVALID;
-}
-
-/*
-** In this version of BtreeMoveto, pKey is a packed index record
-** such as is generated by the OP_MakeRecord opcode.  Unpack the
-** record and then call BtreeMovetoUnpacked() to do the work.
-*/
-static int btreeMoveto(
-  BtCursor *pCur,     /* Cursor open on the btree to be searched */
-  const void *pKey,   /* Packed key if the btree is an index */
-  i64 nKey,           /* Integer key for tables.  Size of pKey for indices */
-  int bias,           /* Bias search to the high end */
-  int *pRes           /* Write search results here */
-){
-  int rc;                    /* Status code */
-  UnpackedRecord *pIdxKey;   /* Unpacked index key */
-
-  if( pKey ){
-    KeyInfo *pKeyInfo = pCur->pKeyInfo;
-    assert( nKey==(i64)(int)nKey );
-    pIdxKey = tdsqlite3VdbeAllocUnpackedRecord(pKeyInfo);
-    if( pIdxKey==0 ) return SQLITE_NOMEM_BKPT;
-    tdsqlite3VdbeRecordUnpack(pKeyInfo, (int)nKey, pKey, pIdxKey);
-    if( pIdxKey->nField==0 || pIdxKey->nField>pKeyInfo->nAllField ){
-      rc = SQLITE_CORRUPT_BKPT;
-      goto moveto_done;
-    }
-  }else{
-    pIdxKey = 0;
-  }
-  rc = tdsqlite3BtreeMovetoUnpacked(pCur, pIdxKey, nKey, bias, pRes);
-moveto_done:
-  if( pIdxKey ){
-    tdsqlite3DbFree(pCur->pKeyInfo->db, pIdxKey);
-  }
-  return rc;
-}
-
-/*
-** Restore the cursor to the position it was in (or as close to as possible)
-** when saveCursorPosition() was called. Note that this call deletes the 
-** saved position info stored by saveCursorPosition(), so there can be
-** at most one effective restoreCursorPosition() call after each 
-** saveCursorPosition().
-*/
-static int btreeRestoreCursorPosition(BtCursor *pCur){
-  int rc;
-  int skipNext = 0;
-  assert( cursorOwnsBtShared(pCur) );
-  assert( pCur->eState>=CURSOR_REQUIRESEEK );
-  if( pCur->eState==CURSOR_FAULT ){
-    return pCur->skipNext;
-  }
-  pCur->eState = CURSOR_INVALID;
-  if( tdsqlite3FaultSim(410) ){
-    rc = SQLITE_IOERR;
-  }else{
-    rc = btreeMoveto(pCur, pCur->pKey, pCur->nKey, 0, &skipNext);
-  }
-  if( rc==SQLITE_OK ){
-    tdsqlite3_free(pCur->pKey);
-    pCur->pKey = 0;
-    assert( pCur->eState==CURSOR_VALID || pCur->eState==CURSOR_INVALID );
-    if( skipNext ) pCur->skipNext = skipNext;
-    if( pCur->skipNext && pCur->eState==CURSOR_VALID ){
-      pCur->eState = CURSOR_SKIPNEXT;
-    }
-  }
-  return rc;
-}
-
-#define restoreCursorPosition(p) \
-  (p->eState>=CURSOR_REQUIRESEEK ? \
-         btreeRestoreCursorPosition(p) : \
-         SQLITE_OK)
-
-/*
-** Determine whether or not a cursor has moved from the position where
-** it was last placed, or has been invalidated for any other reason.
-** Cursors can move when the row they are pointing at is deleted out
-** from under them, for example.  Cursor might also move if a btree
-** is rebalanced.
-**
-** Calling this routine with a NULL cursor pointer returns false.
-**
-** Use the separate tdsqlite3BtreeCursorRestore() routine to restore a cursor
-** back to where it ought to be if this routine returns true.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCursorHasMoved(BtCursor *pCur){
-  assert( EIGHT_BYTE_ALIGNMENT(pCur)
-       || pCur==tdsqlite3BtreeFakeValidCursor() );
-  assert( offsetof(BtCursor, eState)==0 );
-  assert( sizeof(pCur->eState)==1 );
-  return CURSOR_VALID != *(u8*)pCur;
-}
-
-/*
-** Return a pointer to a fake BtCursor object that will always answer
-** false to the tdsqlite3BtreeCursorHasMoved() routine above.  The fake
-** cursor returned must not be used with any other Btree interface.
-*/
-SQLITE_PRIVATE BtCursor *tdsqlite3BtreeFakeValidCursor(void){
-  static u8 fakeCursor = CURSOR_VALID;
-  assert( offsetof(BtCursor, eState)==0 );
-  return (BtCursor*)&fakeCursor;
-}
-
-/*
-** This routine restores a cursor back to its original position after it
-** has been moved by some outside activity (such as a btree rebalance or
-** a row having been deleted out from under the cursor).  
-**
-** On success, the *pDifferentRow parameter is false if the cursor is left
-** pointing at exactly the same row.  *pDifferntRow is the row the cursor
-** was pointing to has been deleted, forcing the cursor to point to some
-** nearby row.
-**
-** This routine should only be called for a cursor that just returned
-** TRUE from tdsqlite3BtreeCursorHasMoved().
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCursorRestore(BtCursor *pCur, int *pDifferentRow){
-  int rc;
-
-  assert( pCur!=0 );
-  assert( pCur->eState!=CURSOR_VALID );
-  rc = restoreCursorPosition(pCur);
-  if( rc ){
-    *pDifferentRow = 1;
-    return rc;
-  }
-  if( pCur->eState!=CURSOR_VALID ){
-    *pDifferentRow = 1;
-  }else{
-    *pDifferentRow = 0;
-  }
-  return SQLITE_OK;
-}
-
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-/*
-** Provide hints to the cursor.  The particular hint given (and the type
-** and number of the varargs parameters) is determined by the eHintType
-** parameter.  See the definitions of the BTREE_HINT_* macros for details.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeCursorHint(BtCursor *pCur, int eHintType, ...){
-  /* Used only by system that substitute their own storage engine */
-}
-#endif
-
-/*
-** Provide flag hints to the cursor.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeCursorHintFlags(BtCursor *pCur, unsigned x){
-  assert( x==BTREE_SEEK_EQ || x==BTREE_BULKLOAD || x==0 );
-  pCur->hints = x;
-}
-
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-/*
-** Given a page number of a regular database page, return the page
-** number for the pointer-map page that contains the entry for the
-** input page number.
-**
-** Return 0 (not a valid page) for pgno==1 since there is
-** no pointer map associated with page 1.  The integrity_check logic
-** requires that ptrmapPageno(*,1)!=1.
-*/
-static Pgno ptrmapPageno(BtShared *pBt, Pgno pgno){
-  int nPagesPerMapPage;
-  Pgno iPtrMap, ret;
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  if( pgno<2 ) return 0;
-  nPagesPerMapPage = (pBt->usableSize/5)+1;
-  iPtrMap = (pgno-2)/nPagesPerMapPage;
-  ret = (iPtrMap*nPagesPerMapPage) + 2; 
-  if( ret==PENDING_BYTE_PAGE(pBt) ){
-    ret++;
-  }
-  return ret;
-}
-
-/*
-** Write an entry into the pointer map.
-**
-** This routine updates the pointer map entry for page number 'key'
-** so that it maps to type 'eType' and parent page number 'pgno'.
-**
-** If *pRC is initially non-zero (non-SQLITE_OK) then this routine is
-** a no-op.  If an error occurs, the appropriate error code is written
-** into *pRC.
-*/
-static void ptrmapPut(BtShared *pBt, Pgno key, u8 eType, Pgno parent, int *pRC){
-  DbPage *pDbPage;  /* The pointer map page */
-  u8 *pPtrmap;      /* The pointer map data */
-  Pgno iPtrmap;     /* The pointer map page number */
-  int offset;       /* Offset in pointer map page */
-  int rc;           /* Return code from subfunctions */
-
-  if( *pRC ) return;
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  /* The master-journal page number must never be used as a pointer map page */
-  assert( 0==PTRMAP_ISPAGE(pBt, PENDING_BYTE_PAGE(pBt)) );
-
-  assert( pBt->autoVacuum );
-  if( key==0 ){
-    *pRC = SQLITE_CORRUPT_BKPT;
-    return;
-  }
-  iPtrmap = PTRMAP_PAGENO(pBt, key);
-  rc = tdsqlite3PagerGet(pBt->pPager, iPtrmap, &pDbPage, 0);
-  if( rc!=SQLITE_OK ){
-    *pRC = rc;
-    return;
-  }
-  if( ((char*)tdsqlite3PagerGetExtra(pDbPage))[0]!=0 ){
-    /* The first byte of the extra data is the MemPage.isInit byte.
-    ** If that byte is set, it means this page is also being used
-    ** as a btree page. */
-    *pRC = SQLITE_CORRUPT_BKPT;
-    goto ptrmap_exit;
-  }
-  offset = PTRMAP_PTROFFSET(iPtrmap, key);
-  if( offset<0 ){
-    *pRC = SQLITE_CORRUPT_BKPT;
-    goto ptrmap_exit;
-  }
-  assert( offset <= (int)pBt->usableSize-5 );
-  pPtrmap = (u8 *)tdsqlite3PagerGetData(pDbPage);
-
-  if( eType!=pPtrmap[offset] || get4byte(&pPtrmap[offset+1])!=parent ){
-    TRACE(("PTRMAP_UPDATE: %d->(%d,%d)\n", key, eType, parent));
-    *pRC= rc = tdsqlite3PagerWrite(pDbPage);
-    if( rc==SQLITE_OK ){
-      pPtrmap[offset] = eType;
-      put4byte(&pPtrmap[offset+1], parent);
-    }
-  }
-
-ptrmap_exit:
-  tdsqlite3PagerUnref(pDbPage);
-}
-
-/*
-** Read an entry from the pointer map.
-**
-** This routine retrieves the pointer map entry for page 'key', writing
-** the type and parent page number to *pEType and *pPgno respectively.
-** An error code is returned if something goes wrong, otherwise SQLITE_OK.
-*/
-static int ptrmapGet(BtShared *pBt, Pgno key, u8 *pEType, Pgno *pPgno){
-  DbPage *pDbPage;   /* The pointer map page */
-  int iPtrmap;       /* Pointer map page index */
-  u8 *pPtrmap;       /* Pointer map page data */
-  int offset;        /* Offset of entry in pointer map */
-  int rc;
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-
-  iPtrmap = PTRMAP_PAGENO(pBt, key);
-  rc = tdsqlite3PagerGet(pBt->pPager, iPtrmap, &pDbPage, 0);
-  if( rc!=0 ){
-    return rc;
-  }
-  pPtrmap = (u8 *)tdsqlite3PagerGetData(pDbPage);
-
-  offset = PTRMAP_PTROFFSET(iPtrmap, key);
-  if( offset<0 ){
-    tdsqlite3PagerUnref(pDbPage);
-    return SQLITE_CORRUPT_BKPT;
-  }
-  assert( offset <= (int)pBt->usableSize-5 );
-  assert( pEType!=0 );
-  *pEType = pPtrmap[offset];
-  if( pPgno ) *pPgno = get4byte(&pPtrmap[offset+1]);
-
-  tdsqlite3PagerUnref(pDbPage);
-  if( *pEType<1 || *pEType>5 ) return SQLITE_CORRUPT_PGNO(iPtrmap);
-  return SQLITE_OK;
-}
-
-#else /* if defined SQLITE_OMIT_AUTOVACUUM */
-  #define ptrmapPut(w,x,y,z,rc)
-  #define ptrmapGet(w,x,y,z) SQLITE_OK
-  #define ptrmapPutOvflPtr(x, y, z, rc)
-#endif
-
-/*
-** Given a btree page and a cell index (0 means the first cell on
-** the page, 1 means the second cell, and so forth) return a pointer
-** to the cell content.
-**
-** findCellPastPtr() does the same except it skips past the initial
-** 4-byte child pointer found on interior pages, if there is one.
-**
-** This routine works only for pages that do not contain overflow cells.
-*/
-#define findCell(P,I) \
-  ((P)->aData + ((P)->maskPage & get2byteAligned(&(P)->aCellIdx[2*(I)])))
-#define findCellPastPtr(P,I) \
-  ((P)->aDataOfst + ((P)->maskPage & get2byteAligned(&(P)->aCellIdx[2*(I)])))
-
-
-/*
-** This is common tail processing for btreeParseCellPtr() and
-** btreeParseCellPtrIndex() for the case when the cell does not fit entirely
-** on a single B-tree page.  Make necessary adjustments to the CellInfo
-** structure.
-*/
-static SQLITE_NOINLINE void btreeParseCellAdjustSizeForOverflow(
-  MemPage *pPage,         /* Page containing the cell */
-  u8 *pCell,              /* Pointer to the cell text. */
-  CellInfo *pInfo         /* Fill in this structure */
-){
-  /* If the payload will not fit completely on the local page, we have
-  ** to decide how much to store locally and how much to spill onto
-  ** overflow pages.  The strategy is to minimize the amount of unused
-  ** space on overflow pages while keeping the amount of local storage
-  ** in between minLocal and maxLocal.
-  **
-  ** Warning:  changing the way overflow payload is distributed in any
-  ** way will result in an incompatible file format.
-  */
-  int minLocal;  /* Minimum amount of payload held locally */
-  int maxLocal;  /* Maximum amount of payload held locally */
-  int surplus;   /* Overflow payload available for local storage */
-
-  minLocal = pPage->minLocal;
-  maxLocal = pPage->maxLocal;
-  surplus = minLocal + (pInfo->nPayload - minLocal)%(pPage->pBt->usableSize-4);
-  testcase( surplus==maxLocal );
-  testcase( surplus==maxLocal+1 );
-  if( surplus <= maxLocal ){
-    pInfo->nLocal = (u16)surplus;
-  }else{
-    pInfo->nLocal = (u16)minLocal;
-  }
-  pInfo->nSize = (u16)(&pInfo->pPayload[pInfo->nLocal] - pCell) + 4;
-}
-
-/*
-** The following routines are implementations of the MemPage.xParseCell()
-** method.
-**
-** Parse a cell content block and fill in the CellInfo structure.
-**
-** btreeParseCellPtr()        =>   table btree leaf nodes
-** btreeParseCellNoPayload()  =>   table btree internal nodes
-** btreeParseCellPtrIndex()   =>   index btree nodes
-**
-** There is also a wrapper function btreeParseCell() that works for
-** all MemPage types and that references the cell by index rather than
-** by pointer.
-*/
-static void btreeParseCellPtrNoPayload(
-  MemPage *pPage,         /* Page containing the cell */
-  u8 *pCell,              /* Pointer to the cell text. */
-  CellInfo *pInfo         /* Fill in this structure */
-){
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( pPage->leaf==0 );
-  assert( pPage->childPtrSize==4 );
-#ifndef SQLITE_DEBUG
-  UNUSED_PARAMETER(pPage);
-#endif
-  pInfo->nSize = 4 + getVarint(&pCell[4], (u64*)&pInfo->nKey);
-  pInfo->nPayload = 0;
-  pInfo->nLocal = 0;
-  pInfo->pPayload = 0;
-  return;
-}
-static void btreeParseCellPtr(
-  MemPage *pPage,         /* Page containing the cell */
-  u8 *pCell,              /* Pointer to the cell text. */
-  CellInfo *pInfo         /* Fill in this structure */
-){
-  u8 *pIter;              /* For scanning through pCell */
-  u32 nPayload;           /* Number of bytes of cell payload */
-  u64 iKey;               /* Extracted Key value */
-
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( pPage->leaf==0 || pPage->leaf==1 );
-  assert( pPage->intKeyLeaf );
-  assert( pPage->childPtrSize==0 );
-  pIter = pCell;
-
-  /* The next block of code is equivalent to:
-  **
-  **     pIter += getVarint32(pIter, nPayload);
-  **
-  ** The code is inlined to avoid a function call.
-  */
-  nPayload = *pIter;
-  if( nPayload>=0x80 ){
-    u8 *pEnd = &pIter[8];
-    nPayload &= 0x7f;
-    do{
-      nPayload = (nPayload<<7) | (*++pIter & 0x7f);
-    }while( (*pIter)>=0x80 && pIter<pEnd );
-  }
-  pIter++;
-
-  /* The next block of code is equivalent to:
-  **
-  **     pIter += getVarint(pIter, (u64*)&pInfo->nKey);
-  **
-  ** The code is inlined to avoid a function call.
-  */
-  iKey = *pIter;
-  if( iKey>=0x80 ){
-    u8 *pEnd = &pIter[7];
-    iKey &= 0x7f;
-    while(1){
-      iKey = (iKey<<7) | (*++pIter & 0x7f);
-      if( (*pIter)<0x80 ) break;
-      if( pIter>=pEnd ){
-        iKey = (iKey<<8) | *++pIter;
-        break;
-      }
-    }
-  }
-  pIter++;
-
-  pInfo->nKey = *(i64*)&iKey;
-  pInfo->nPayload = nPayload;
-  pInfo->pPayload = pIter;
-  testcase( nPayload==pPage->maxLocal );
-  testcase( nPayload==pPage->maxLocal+1 );
-  if( nPayload<=pPage->maxLocal ){
-    /* This is the (easy) common case where the entire payload fits
-    ** on the local page.  No overflow is required.
-    */
-    pInfo->nSize = nPayload + (u16)(pIter - pCell);
-    if( pInfo->nSize<4 ) pInfo->nSize = 4;
-    pInfo->nLocal = (u16)nPayload;
-  }else{
-    btreeParseCellAdjustSizeForOverflow(pPage, pCell, pInfo);
-  }
-}
-static void btreeParseCellPtrIndex(
-  MemPage *pPage,         /* Page containing the cell */
-  u8 *pCell,              /* Pointer to the cell text. */
-  CellInfo *pInfo         /* Fill in this structure */
-){
-  u8 *pIter;              /* For scanning through pCell */
-  u32 nPayload;           /* Number of bytes of cell payload */
-
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( pPage->leaf==0 || pPage->leaf==1 );
-  assert( pPage->intKeyLeaf==0 );
-  pIter = pCell + pPage->childPtrSize;
-  nPayload = *pIter;
-  if( nPayload>=0x80 ){
-    u8 *pEnd = &pIter[8];
-    nPayload &= 0x7f;
-    do{
-      nPayload = (nPayload<<7) | (*++pIter & 0x7f);
-    }while( *(pIter)>=0x80 && pIter<pEnd );
-  }
-  pIter++;
-  pInfo->nKey = nPayload;
-  pInfo->nPayload = nPayload;
-  pInfo->pPayload = pIter;
-  testcase( nPayload==pPage->maxLocal );
-  testcase( nPayload==pPage->maxLocal+1 );
-  if( nPayload<=pPage->maxLocal ){
-    /* This is the (easy) common case where the entire payload fits
-    ** on the local page.  No overflow is required.
-    */
-    pInfo->nSize = nPayload + (u16)(pIter - pCell);
-    if( pInfo->nSize<4 ) pInfo->nSize = 4;
-    pInfo->nLocal = (u16)nPayload;
-  }else{
-    btreeParseCellAdjustSizeForOverflow(pPage, pCell, pInfo);
-  }
-}
-static void btreeParseCell(
-  MemPage *pPage,         /* Page containing the cell */
-  int iCell,              /* The cell index.  First cell is 0 */
-  CellInfo *pInfo         /* Fill in this structure */
-){
-  pPage->xParseCell(pPage, findCell(pPage, iCell), pInfo);
-}
-
-/*
-** The following routines are implementations of the MemPage.xCellSize
-** method.
-**
-** Compute the total number of bytes that a Cell needs in the cell
-** data area of the btree-page.  The return number includes the cell
-** data header and the local payload, but not any overflow page or
-** the space used by the cell pointer.
-**
-** cellSizePtrNoPayload()    =>   table internal nodes
-** cellSizePtr()             =>   all index nodes & table leaf nodes
-*/
-static u16 cellSizePtr(MemPage *pPage, u8 *pCell){
-  u8 *pIter = pCell + pPage->childPtrSize; /* For looping over bytes of pCell */
-  u8 *pEnd;                                /* End mark for a varint */
-  u32 nSize;                               /* Size value to return */
-
-#ifdef SQLITE_DEBUG
-  /* The value returned by this function should always be the same as
-  ** the (CellInfo.nSize) value found by doing a full parse of the
-  ** cell. If SQLITE_DEBUG is defined, an assert() at the bottom of
-  ** this function verifies that this invariant is not violated. */
-  CellInfo debuginfo;
-  pPage->xParseCell(pPage, pCell, &debuginfo);
-#endif
-
-  nSize = *pIter;
-  if( nSize>=0x80 ){
-    pEnd = &pIter[8];
-    nSize &= 0x7f;
-    do{
-      nSize = (nSize<<7) | (*++pIter & 0x7f);
-    }while( *(pIter)>=0x80 && pIter<pEnd );
-  }
-  pIter++;
-  if( pPage->intKey ){
-    /* pIter now points at the 64-bit integer key value, a variable length 
-    ** integer. The following block moves pIter to point at the first byte
-    ** past the end of the key value. */
-    pEnd = &pIter[9];
-    while( (*pIter++)&0x80 && pIter<pEnd );
-  }
-  testcase( nSize==pPage->maxLocal );
-  testcase( nSize==pPage->maxLocal+1 );
-  if( nSize<=pPage->maxLocal ){
-    nSize += (u32)(pIter - pCell);
-    if( nSize<4 ) nSize = 4;
-  }else{
-    int minLocal = pPage->minLocal;
-    nSize = minLocal + (nSize - minLocal) % (pPage->pBt->usableSize - 4);
-    testcase( nSize==pPage->maxLocal );
-    testcase( nSize==pPage->maxLocal+1 );
-    if( nSize>pPage->maxLocal ){
-      nSize = minLocal;
-    }
-    nSize += 4 + (u16)(pIter - pCell);
-  }
-  assert( nSize==debuginfo.nSize || CORRUPT_DB );
-  return (u16)nSize;
-}
-static u16 cellSizePtrNoPayload(MemPage *pPage, u8 *pCell){
-  u8 *pIter = pCell + 4; /* For looping over bytes of pCell */
-  u8 *pEnd;              /* End mark for a varint */
-
-#ifdef SQLITE_DEBUG
-  /* The value returned by this function should always be the same as
-  ** the (CellInfo.nSize) value found by doing a full parse of the
-  ** cell. If SQLITE_DEBUG is defined, an assert() at the bottom of
-  ** this function verifies that this invariant is not violated. */
-  CellInfo debuginfo;
-  pPage->xParseCell(pPage, pCell, &debuginfo);
-#else
-  UNUSED_PARAMETER(pPage);
-#endif
-
-  assert( pPage->childPtrSize==4 );
-  pEnd = pIter + 9;
-  while( (*pIter++)&0x80 && pIter<pEnd );
-  assert( debuginfo.nSize==(u16)(pIter - pCell) || CORRUPT_DB );
-  return (u16)(pIter - pCell);
-}
-
-
-#ifdef SQLITE_DEBUG
-/* This variation on cellSizePtr() is used inside of assert() statements
-** only. */
-static u16 cellSize(MemPage *pPage, int iCell){
-  return pPage->xCellSize(pPage, findCell(pPage, iCell));
-}
-#endif
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-/*
-** The cell pCell is currently part of page pSrc but will ultimately be part
-** of pPage.  (pSrc and pPager are often the same.)  If pCell contains a
-** pointer to an overflow page, insert an entry into the pointer-map for
-** the overflow page that will be valid after pCell has been moved to pPage.
-*/
-static void ptrmapPutOvflPtr(MemPage *pPage, MemPage *pSrc, u8 *pCell,int *pRC){
-  CellInfo info;
-  if( *pRC ) return;
-  assert( pCell!=0 );
-  pPage->xParseCell(pPage, pCell, &info);
-  if( info.nLocal<info.nPayload ){
-    Pgno ovfl;
-    if( SQLITE_WITHIN(pSrc->aDataEnd, pCell, pCell+info.nLocal) ){
-      testcase( pSrc!=pPage );
-      *pRC = SQLITE_CORRUPT_BKPT;
-      return;
-    }
-    ovfl = get4byte(&pCell[info.nSize-4]);
-    ptrmapPut(pPage->pBt, ovfl, PTRMAP_OVERFLOW1, pPage->pgno, pRC);
-  }
-}
-#endif
-
-
-/*
-** Defragment the page given. This routine reorganizes cells within the
-** page so that there are no free-blocks on the free-block list.
-**
-** Parameter nMaxFrag is the maximum amount of fragmented space that may be
-** present in the page after this routine returns.
-**
-** EVIDENCE-OF: R-44582-60138 SQLite may from time to time reorganize a
-** b-tree page so that there are no freeblocks or fragment bytes, all
-** unused bytes are contained in the unallocated space region, and all
-** cells are packed tightly at the end of the page.
-*/
-static int defragmentPage(MemPage *pPage, int nMaxFrag){
-  int i;                     /* Loop counter */
-  int pc;                    /* Address of the i-th cell */
-  int hdr;                   /* Offset to the page header */
-  int size;                  /* Size of a cell */
-  int usableSize;            /* Number of usable bytes on a page */
-  int cellOffset;            /* Offset to the cell pointer array */
-  int cbrk;                  /* Offset to the cell content area */
-  int nCell;                 /* Number of cells on the page */
-  unsigned char *data;       /* The page data */
-  unsigned char *temp;       /* Temp area for cell content */
-  unsigned char *src;        /* Source of content */
-  int iCellFirst;            /* First allowable cell index */
-  int iCellLast;             /* Last possible cell index */
-
-  assert( tdsqlite3PagerIswriteable(pPage->pDbPage) );
-  assert( pPage->pBt!=0 );
-  assert( pPage->pBt->usableSize <= SQLITE_MAX_PAGE_SIZE );
-  assert( pPage->nOverflow==0 );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  temp = 0;
-  src = data = pPage->aData;
-  hdr = pPage->hdrOffset;
-  cellOffset = pPage->cellOffset;
-  nCell = pPage->nCell;
-  assert( nCell==get2byte(&data[hdr+3]) || CORRUPT_DB );
-  iCellFirst = cellOffset + 2*nCell;
-  usableSize = pPage->pBt->usableSize;
-
-  /* This block handles pages with two or fewer free blocks and nMaxFrag
-  ** or fewer fragmented bytes. In this case it is faster to move the
-  ** two (or one) blocks of cells using memmove() and add the required
-  ** offsets to each pointer in the cell-pointer array than it is to 
-  ** reconstruct the entire page.  */
-  if( (int)data[hdr+7]<=nMaxFrag ){
-    int iFree = get2byte(&data[hdr+1]);
-    if( iFree>usableSize-4 ) return SQLITE_CORRUPT_PAGE(pPage);
-    if( iFree ){
-      int iFree2 = get2byte(&data[iFree]);
-      if( iFree2>usableSize-4 ) return SQLITE_CORRUPT_PAGE(pPage);
-      if( 0==iFree2 || (data[iFree2]==0 && data[iFree2+1]==0) ){
-        u8 *pEnd = &data[cellOffset + nCell*2];
-        u8 *pAddr;
-        int sz2 = 0;
-        int sz = get2byte(&data[iFree+2]);
-        int top = get2byte(&data[hdr+5]);
-        if( NEVER(top>=iFree) ){
-          return SQLITE_CORRUPT_PAGE(pPage);
-        }
-        if( iFree2 ){
-          if( iFree+sz>iFree2 ) return SQLITE_CORRUPT_PAGE(pPage);
-          sz2 = get2byte(&data[iFree2+2]);
-          if( iFree2+sz2 > usableSize ) return SQLITE_CORRUPT_PAGE(pPage);
-          memmove(&data[iFree+sz+sz2], &data[iFree+sz], iFree2-(iFree+sz));
-          sz += sz2;
-        }else if( NEVER(iFree+sz>usableSize) ){
-          return SQLITE_CORRUPT_PAGE(pPage);
-        }
-
-        cbrk = top+sz;
-        assert( cbrk+(iFree-top) <= usableSize );
-        memmove(&data[cbrk], &data[top], iFree-top);
-        for(pAddr=&data[cellOffset]; pAddr<pEnd; pAddr+=2){
-          pc = get2byte(pAddr);
-          if( pc<iFree ){ put2byte(pAddr, pc+sz); }
-          else if( pc<iFree2 ){ put2byte(pAddr, pc+sz2); }
-        }
-        goto defragment_out;
-      }
-    }
-  }
-
-  cbrk = usableSize;
-  iCellLast = usableSize - 4;
-  for(i=0; i<nCell; i++){
-    u8 *pAddr;     /* The i-th cell pointer */
-    pAddr = &data[cellOffset + i*2];
-    pc = get2byte(pAddr);
-    testcase( pc==iCellFirst );
-    testcase( pc==iCellLast );
-    /* These conditions have already been verified in btreeInitPage()
-    ** if PRAGMA cell_size_check=ON.
-    */
-    if( pc<iCellFirst || pc>iCellLast ){
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-    assert( pc>=iCellFirst && pc<=iCellLast );
-    size = pPage->xCellSize(pPage, &src[pc]);
-    cbrk -= size;
-    if( cbrk<iCellFirst || pc+size>usableSize ){
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-    assert( cbrk+size<=usableSize && cbrk>=iCellFirst );
-    testcase( cbrk+size==usableSize );
-    testcase( pc+size==usableSize );
-    put2byte(pAddr, cbrk);
-    if( temp==0 ){
-      int x;
-      if( cbrk==pc ) continue;
-      temp = tdsqlite3PagerTempSpace(pPage->pBt->pPager);
-      x = get2byte(&data[hdr+5]);
-      memcpy(&temp[x], &data[x], (cbrk+size) - x);
-      src = temp;
-    }
-    memcpy(&data[cbrk], &src[pc], size);
-  }
-  data[hdr+7] = 0;
-
- defragment_out:
-  assert( pPage->nFree>=0 );
-  if( data[hdr+7]+cbrk-iCellFirst!=pPage->nFree ){
-    return SQLITE_CORRUPT_PAGE(pPage);
-  }
-  assert( cbrk>=iCellFirst );
-  put2byte(&data[hdr+5], cbrk);
-  data[hdr+1] = 0;
-  data[hdr+2] = 0;
-  memset(&data[iCellFirst], 0, cbrk-iCellFirst);
-  assert( tdsqlite3PagerIswriteable(pPage->pDbPage) );
-  return SQLITE_OK;
-}
-
-/*
-** Search the free-list on page pPg for space to store a cell nByte bytes in
-** size. If one can be found, return a pointer to the space and remove it
-** from the free-list.
-**
-** If no suitable space can be found on the free-list, return NULL.
-**
-** This function may detect corruption within pPg.  If corruption is
-** detected then *pRc is set to SQLITE_CORRUPT and NULL is returned.
-**
-** Slots on the free list that are between 1 and 3 bytes larger than nByte
-** will be ignored if adding the extra space to the fragmentation count
-** causes the fragmentation count to exceed 60.
-*/
-static u8 *pageFindSlot(MemPage *pPg, int nByte, int *pRc){
-  const int hdr = pPg->hdrOffset;            /* Offset to page header */
-  u8 * const aData = pPg->aData;             /* Page data */
-  int iAddr = hdr + 1;                       /* Address of ptr to pc */
-  int pc = get2byte(&aData[iAddr]);          /* Address of a free slot */
-  int x;                                     /* Excess size of the slot */
-  int maxPC = pPg->pBt->usableSize - nByte;  /* Max address for a usable slot */
-  int size;                                  /* Size of the free slot */
-
-  assert( pc>0 );
-  while( pc<=maxPC ){
-    /* EVIDENCE-OF: R-22710-53328 The third and fourth bytes of each
-    ** freeblock form a big-endian integer which is the size of the freeblock
-    ** in bytes, including the 4-byte header. */
-    size = get2byte(&aData[pc+2]);
-    if( (x = size - nByte)>=0 ){
-      testcase( x==4 );
-      testcase( x==3 );
-      if( x<4 ){
-        /* EVIDENCE-OF: R-11498-58022 In a well-formed b-tree page, the total
-        ** number of bytes in fragments may not exceed 60. */
-        if( aData[hdr+7]>57 ) return 0;
-
-        /* Remove the slot from the free-list. Update the number of
-        ** fragmented bytes within the page. */
-        memcpy(&aData[iAddr], &aData[pc], 2);
-        aData[hdr+7] += (u8)x;
-      }else if( x+pc > maxPC ){
-        /* This slot extends off the end of the usable part of the page */
-        *pRc = SQLITE_CORRUPT_PAGE(pPg);
-        return 0;
-      }else{
-        /* The slot remains on the free-list. Reduce its size to account
-        ** for the portion used by the new allocation. */
-        put2byte(&aData[pc+2], x);
-      }
-      return &aData[pc + x];
-    }
-    iAddr = pc;
-    pc = get2byte(&aData[pc]);
-    if( pc<=iAddr+size ){
-      if( pc ){
-        /* The next slot in the chain is not past the end of the current slot */
-        *pRc = SQLITE_CORRUPT_PAGE(pPg);
-      }
-      return 0;
-    }
-  }
-  if( pc>maxPC+nByte-4 ){
-    /* The free slot chain extends off the end of the page */
-    *pRc = SQLITE_CORRUPT_PAGE(pPg);
-  }
-  return 0;
-}
-
-/*
-** Allocate nByte bytes of space from within the B-Tree page passed
-** as the first argument. Write into *pIdx the index into pPage->aData[]
-** of the first byte of allocated space. Return either SQLITE_OK or
-** an error code (usually SQLITE_CORRUPT).
-**
-** The caller guarantees that there is sufficient space to make the
-** allocation.  This routine might need to defragment in order to bring
-** all the space together, however.  This routine will avoid using
-** the first two bytes past the cell pointer area since presumably this
-** allocation is being made in order to insert a new cell, so we will
-** also end up needing a new cell pointer.
-*/
-static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){
-  const int hdr = pPage->hdrOffset;    /* Local cache of pPage->hdrOffset */
-  u8 * const data = pPage->aData;      /* Local cache of pPage->aData */
-  int top;                             /* First byte of cell content area */
-  int rc = SQLITE_OK;                  /* Integer return code */
-  int gap;        /* First byte of gap between cell pointers and cell content */
-  
-  assert( tdsqlite3PagerIswriteable(pPage->pDbPage) );
-  assert( pPage->pBt );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( nByte>=0 );  /* Minimum cell size is 4 */
-  assert( pPage->nFree>=nByte );
-  assert( pPage->nOverflow==0 );
-  assert( nByte < (int)(pPage->pBt->usableSize-8) );
-
-  assert( pPage->cellOffset == hdr + 12 - 4*pPage->leaf );
-  gap = pPage->cellOffset + 2*pPage->nCell;
-  assert( gap<=65536 );
-  /* EVIDENCE-OF: R-29356-02391 If the database uses a 65536-byte page size
-  ** and the reserved space is zero (the usual value for reserved space)
-  ** then the cell content offset of an empty page wants to be 65536.
-  ** However, that integer is too large to be stored in a 2-byte unsigned
-  ** integer, so a value of 0 is used in its place. */
-  top = get2byte(&data[hdr+5]);
-  assert( top<=(int)pPage->pBt->usableSize ); /* by btreeComputeFreeSpace() */
-  if( gap>top ){
-    if( top==0 && pPage->pBt->usableSize==65536 ){
-      top = 65536;
-    }else{
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-  }
-
-  /* If there is enough space between gap and top for one more cell pointer,
-  ** and if the freelist is not empty, then search the
-  ** freelist looking for a slot big enough to satisfy the request.
-  */
-  testcase( gap+2==top );
-  testcase( gap+1==top );
-  testcase( gap==top );
-  if( (data[hdr+2] || data[hdr+1]) && gap+2<=top ){
-    u8 *pSpace = pageFindSlot(pPage, nByte, &rc);
-    if( pSpace ){
-      int g2;
-      assert( pSpace+nByte<=data+pPage->pBt->usableSize );
-      *pIdx = g2 = (int)(pSpace-data);
-      if( NEVER(g2<=gap) ){
-        return SQLITE_CORRUPT_PAGE(pPage);
-      }else{
-        return SQLITE_OK;
-      }
-    }else if( rc ){
-      return rc;
-    }
-  }
-
-  /* The request could not be fulfilled using a freelist slot.  Check
-  ** to see if defragmentation is necessary.
-  */
-  testcase( gap+2+nByte==top );
-  if( gap+2+nByte>top ){
-    assert( pPage->nCell>0 || CORRUPT_DB );
-    assert( pPage->nFree>=0 );
-    rc = defragmentPage(pPage, MIN(4, pPage->nFree - (2+nByte)));
-    if( rc ) return rc;
-    top = get2byteNotZero(&data[hdr+5]);
-    assert( gap+2+nByte<=top );
-  }
-
-
-  /* Allocate memory from the gap in between the cell pointer array
-  ** and the cell content area.  The btreeComputeFreeSpace() call has already
-  ** validated the freelist.  Given that the freelist is valid, there
-  ** is no way that the allocation can extend off the end of the page.
-  ** The assert() below verifies the previous sentence.
-  */
-  top -= nByte;
-  put2byte(&data[hdr+5], top);
-  assert( top+nByte <= (int)pPage->pBt->usableSize );
-  *pIdx = top;
-  return SQLITE_OK;
-}
-
-/*
-** Return a section of the pPage->aData to the freelist.
-** The first byte of the new free block is pPage->aData[iStart]
-** and the size of the block is iSize bytes.
-**
-** Adjacent freeblocks are coalesced.
-**
-** Even though the freeblock list was checked by btreeComputeFreeSpace(),
-** that routine will not detect overlap between cells or freeblocks.  Nor
-** does it detect cells or freeblocks that encrouch into the reserved bytes
-** at the end of the page.  So do additional corruption checks inside this
-** routine and return SQLITE_CORRUPT if any problems are found.
-*/
-static int freeSpace(MemPage *pPage, u16 iStart, u16 iSize){
-  u16 iPtr;                             /* Address of ptr to next freeblock */
-  u16 iFreeBlk;                         /* Address of the next freeblock */
-  u8 hdr;                               /* Page header size.  0 or 100 */
-  u8 nFrag = 0;                         /* Reduction in fragmentation */
-  u16 iOrigSize = iSize;                /* Original value of iSize */
-  u16 x;                                /* Offset to cell content area */
-  u32 iEnd = iStart + iSize;            /* First byte past the iStart buffer */
-  unsigned char *data = pPage->aData;   /* Page content */
-
-  assert( pPage->pBt!=0 );
-  assert( tdsqlite3PagerIswriteable(pPage->pDbPage) );
-  assert( CORRUPT_DB || iStart>=pPage->hdrOffset+6+pPage->childPtrSize );
-  assert( CORRUPT_DB || iEnd <= pPage->pBt->usableSize );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( iSize>=4 );   /* Minimum cell size is 4 */
-  assert( iStart<=pPage->pBt->usableSize-4 );
-
-  /* The list of freeblocks must be in ascending order.  Find the 
-  ** spot on the list where iStart should be inserted.
-  */
-  hdr = pPage->hdrOffset;
-  iPtr = hdr + 1;
-  if( data[iPtr+1]==0 && data[iPtr]==0 ){
-    iFreeBlk = 0;  /* Shortcut for the case when the freelist is empty */
-  }else{
-    while( (iFreeBlk = get2byte(&data[iPtr]))<iStart ){
-      if( iFreeBlk<iPtr+4 ){
-        if( iFreeBlk==0 ) break; /* TH3: corrupt082.100 */
-        return SQLITE_CORRUPT_PAGE(pPage);
-      }
-      iPtr = iFreeBlk;
-    }
-    if( iFreeBlk>pPage->pBt->usableSize-4 ){ /* TH3: corrupt081.100 */
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-    assert( iFreeBlk>iPtr || iFreeBlk==0 );
-  
-    /* At this point:
-    **    iFreeBlk:   First freeblock after iStart, or zero if none
-    **    iPtr:       The address of a pointer to iFreeBlk
-    **
-    ** Check to see if iFreeBlk should be coalesced onto the end of iStart.
-    */
-    if( iFreeBlk && iEnd+3>=iFreeBlk ){
-      nFrag = iFreeBlk - iEnd;
-      if( iEnd>iFreeBlk ) return SQLITE_CORRUPT_PAGE(pPage);
-      iEnd = iFreeBlk + get2byte(&data[iFreeBlk+2]);
-      if( NEVER(iEnd > pPage->pBt->usableSize) ){
-        return SQLITE_CORRUPT_PAGE(pPage);
-      }
-      iSize = iEnd - iStart;
-      iFreeBlk = get2byte(&data[iFreeBlk]);
-    }
-  
-    /* If iPtr is another freeblock (that is, if iPtr is not the freelist
-    ** pointer in the page header) then check to see if iStart should be
-    ** coalesced onto the end of iPtr.
-    */
-    if( iPtr>hdr+1 ){
-      int iPtrEnd = iPtr + get2byte(&data[iPtr+2]);
-      if( iPtrEnd+3>=iStart ){
-        if( iPtrEnd>iStart ) return SQLITE_CORRUPT_PAGE(pPage);
-        nFrag += iStart - iPtrEnd;
-        iSize = iEnd - iPtr;
-        iStart = iPtr;
-      }
-    }
-    if( nFrag>data[hdr+7] ) return SQLITE_CORRUPT_PAGE(pPage);
-    data[hdr+7] -= nFrag;
-  }
-  x = get2byte(&data[hdr+5]);
-  if( iStart<=x ){
-    /* The new freeblock is at the beginning of the cell content area,
-    ** so just extend the cell content area rather than create another
-    ** freelist entry */
-    if( iStart<x ) return SQLITE_CORRUPT_PAGE(pPage);
-    if( NEVER(iPtr!=hdr+1) ) return SQLITE_CORRUPT_PAGE(pPage);
-    put2byte(&data[hdr+1], iFreeBlk);
-    put2byte(&data[hdr+5], iEnd);
-  }else{
-    /* Insert the new freeblock into the freelist */
-    put2byte(&data[iPtr], iStart);
-  }
-  if( pPage->pBt->btsFlags & BTS_FAST_SECURE ){
-    /* Overwrite deleted information with zeros when the secure_delete
-    ** option is enabled */
-    memset(&data[iStart], 0, iSize);
-  }
-  put2byte(&data[iStart], iFreeBlk);
-  put2byte(&data[iStart+2], iSize);
-  pPage->nFree += iOrigSize;
-  return SQLITE_OK;
-}
-
-/*
-** Decode the flags byte (the first byte of the header) for a page
-** and initialize fields of the MemPage structure accordingly.
-**
-** Only the following combinations are supported.  Anything different
-** indicates a corrupt database files:
-**
-**         PTF_ZERODATA
-**         PTF_ZERODATA | PTF_LEAF
-**         PTF_LEAFDATA | PTF_INTKEY
-**         PTF_LEAFDATA | PTF_INTKEY | PTF_LEAF
-*/
-static int decodeFlags(MemPage *pPage, int flagByte){
-  BtShared *pBt;     /* A copy of pPage->pBt */
-
-  assert( pPage->hdrOffset==(pPage->pgno==1 ? 100 : 0) );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  pPage->leaf = (u8)(flagByte>>3);  assert( PTF_LEAF == 1<<3 );
-  flagByte &= ~PTF_LEAF;
-  pPage->childPtrSize = 4-4*pPage->leaf;
-  pPage->xCellSize = cellSizePtr;
-  pBt = pPage->pBt;
-  if( flagByte==(PTF_LEAFDATA | PTF_INTKEY) ){
-    /* EVIDENCE-OF: R-07291-35328 A value of 5 (0x05) means the page is an
-    ** interior table b-tree page. */
-    assert( (PTF_LEAFDATA|PTF_INTKEY)==5 );
-    /* EVIDENCE-OF: R-26900-09176 A value of 13 (0x0d) means the page is a
-    ** leaf table b-tree page. */
-    assert( (PTF_LEAFDATA|PTF_INTKEY|PTF_LEAF)==13 );
-    pPage->intKey = 1;
-    if( pPage->leaf ){
-      pPage->intKeyLeaf = 1;
-      pPage->xParseCell = btreeParseCellPtr;
-    }else{
-      pPage->intKeyLeaf = 0;
-      pPage->xCellSize = cellSizePtrNoPayload;
-      pPage->xParseCell = btreeParseCellPtrNoPayload;
-    }
-    pPage->maxLocal = pBt->maxLeaf;
-    pPage->minLocal = pBt->minLeaf;
-  }else if( flagByte==PTF_ZERODATA ){
-    /* EVIDENCE-OF: R-43316-37308 A value of 2 (0x02) means the page is an
-    ** interior index b-tree page. */
-    assert( (PTF_ZERODATA)==2 );
-    /* EVIDENCE-OF: R-59615-42828 A value of 10 (0x0a) means the page is a
-    ** leaf index b-tree page. */
-    assert( (PTF_ZERODATA|PTF_LEAF)==10 );
-    pPage->intKey = 0;
-    pPage->intKeyLeaf = 0;
-    pPage->xParseCell = btreeParseCellPtrIndex;
-    pPage->maxLocal = pBt->maxLocal;
-    pPage->minLocal = pBt->minLocal;
-  }else{
-    /* EVIDENCE-OF: R-47608-56469 Any other value for the b-tree page type is
-    ** an error. */
-    return SQLITE_CORRUPT_PAGE(pPage);
-  }
-  pPage->max1bytePayload = pBt->max1bytePayload;
-  return SQLITE_OK;
-}
-
-/*
-** Compute the amount of freespace on the page.  In other words, fill
-** in the pPage->nFree field.
-*/
-static int btreeComputeFreeSpace(MemPage *pPage){
-  int pc;            /* Address of a freeblock within pPage->aData[] */
-  u8 hdr;            /* Offset to beginning of page header */
-  u8 *data;          /* Equal to pPage->aData */
-  int usableSize;    /* Amount of usable space on each page */
-  int nFree;         /* Number of unused bytes on the page */
-  int top;           /* First byte of the cell content area */
-  int iCellFirst;    /* First allowable cell or freeblock offset */
-  int iCellLast;     /* Last possible cell or freeblock offset */
-
-  assert( pPage->pBt!=0 );
-  assert( pPage->pBt->db!=0 );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( pPage->pgno==tdsqlite3PagerPagenumber(pPage->pDbPage) );
-  assert( pPage == tdsqlite3PagerGetExtra(pPage->pDbPage) );
-  assert( pPage->aData == tdsqlite3PagerGetData(pPage->pDbPage) );
-  assert( pPage->isInit==1 );
-  assert( pPage->nFree<0 );
-
-  usableSize = pPage->pBt->usableSize;
-  hdr = pPage->hdrOffset;
-  data = pPage->aData;
-  /* EVIDENCE-OF: R-58015-48175 The two-byte integer at offset 5 designates
-  ** the start of the cell content area. A zero value for this integer is
-  ** interpreted as 65536. */
-  top = get2byteNotZero(&data[hdr+5]);
-  iCellFirst = hdr + 8 + pPage->childPtrSize + 2*pPage->nCell;
-  iCellLast = usableSize - 4;
-
-  /* Compute the total free space on the page
-  ** EVIDENCE-OF: R-23588-34450 The two-byte integer at offset 1 gives the
-  ** start of the first freeblock on the page, or is zero if there are no
-  ** freeblocks. */
-  pc = get2byte(&data[hdr+1]);
-  nFree = data[hdr+7] + top;  /* Init nFree to non-freeblock free space */
-  if( pc>0 ){
-    u32 next, size;
-    if( pc<top ){
-      /* EVIDENCE-OF: R-55530-52930 In a well-formed b-tree page, there will
-      ** always be at least one cell before the first freeblock.
-      */
-      return SQLITE_CORRUPT_PAGE(pPage); 
-    }
-    while( 1 ){
-      if( pc>iCellLast ){
-        /* Freeblock off the end of the page */
-        return SQLITE_CORRUPT_PAGE(pPage);
-      }
-      next = get2byte(&data[pc]);
-      size = get2byte(&data[pc+2]);
-      nFree = nFree + size;
-      if( next<=pc+size+3 ) break;
-      pc = next;
-    }
-    if( next>0 ){
-      /* Freeblock not in ascending order */
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-    if( pc+size>(unsigned int)usableSize ){
-      /* Last freeblock extends past page end */
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-  }
-
-  /* At this point, nFree contains the sum of the offset to the start
-  ** of the cell-content area plus the number of free bytes within
-  ** the cell-content area. If this is greater than the usable-size
-  ** of the page, then the page must be corrupted. This check also
-  ** serves to verify that the offset to the start of the cell-content
-  ** area, according to the page header, lies within the page.
-  */
-  if( nFree>usableSize || nFree<iCellFirst ){
-    return SQLITE_CORRUPT_PAGE(pPage);
-  }
-  pPage->nFree = (u16)(nFree - iCellFirst);
-  return SQLITE_OK;
-}
-
-/*
-** Do additional sanity check after btreeInitPage() if
-** PRAGMA cell_size_check=ON 
-*/
-static SQLITE_NOINLINE int btreeCellSizeCheck(MemPage *pPage){
-  int iCellFirst;    /* First allowable cell or freeblock offset */
-  int iCellLast;     /* Last possible cell or freeblock offset */
-  int i;             /* Index into the cell pointer array */
-  int sz;            /* Size of a cell */
-  int pc;            /* Address of a freeblock within pPage->aData[] */
-  u8 *data;          /* Equal to pPage->aData */
-  int usableSize;    /* Maximum usable space on the page */
-  int cellOffset;    /* Start of cell content area */
-
-  iCellFirst = pPage->cellOffset + 2*pPage->nCell;
-  usableSize = pPage->pBt->usableSize;
-  iCellLast = usableSize - 4;
-  data = pPage->aData;
-  cellOffset = pPage->cellOffset;
-  if( !pPage->leaf ) iCellLast--;
-  for(i=0; i<pPage->nCell; i++){
-    pc = get2byteAligned(&data[cellOffset+i*2]);
-    testcase( pc==iCellFirst );
-    testcase( pc==iCellLast );
-    if( pc<iCellFirst || pc>iCellLast ){
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-    sz = pPage->xCellSize(pPage, &data[pc]);
-    testcase( pc+sz==usableSize );
-    if( pc+sz>usableSize ){
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Initialize the auxiliary information for a disk block.
-**
-** Return SQLITE_OK on success.  If we see that the page does
-** not contain a well-formed database page, then return 
-** SQLITE_CORRUPT.  Note that a return of SQLITE_OK does not
-** guarantee that the page is well-formed.  It only shows that
-** we failed to detect any corruption.
-*/
-static int btreeInitPage(MemPage *pPage){
-  u8 *data;          /* Equal to pPage->aData */
-  BtShared *pBt;        /* The main btree structure */
-
-  assert( pPage->pBt!=0 );
-  assert( pPage->pBt->db!=0 );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( pPage->pgno==tdsqlite3PagerPagenumber(pPage->pDbPage) );
-  assert( pPage == tdsqlite3PagerGetExtra(pPage->pDbPage) );
-  assert( pPage->aData == tdsqlite3PagerGetData(pPage->pDbPage) );
-  assert( pPage->isInit==0 );
-
-  pBt = pPage->pBt;
-  data = pPage->aData + pPage->hdrOffset;
-  /* EVIDENCE-OF: R-28594-02890 The one-byte flag at offset 0 indicating
-  ** the b-tree page type. */
-  if( decodeFlags(pPage, data[0]) ){
-    return SQLITE_CORRUPT_PAGE(pPage);
-  }
-  assert( pBt->pageSize>=512 && pBt->pageSize<=65536 );
-  pPage->maskPage = (u16)(pBt->pageSize - 1);
-  pPage->nOverflow = 0;
-  pPage->cellOffset = pPage->hdrOffset + 8 + pPage->childPtrSize;
-  pPage->aCellIdx = data + pPage->childPtrSize + 8;
-  pPage->aDataEnd = pPage->aData + pBt->usableSize;
-  pPage->aDataOfst = pPage->aData + pPage->childPtrSize;
-  /* EVIDENCE-OF: R-37002-32774 The two-byte integer at offset 3 gives the
-  ** number of cells on the page. */
-  pPage->nCell = get2byte(&data[3]);
-  if( pPage->nCell>MX_CELL(pBt) ){
-    /* To many cells for a single page.  The page must be corrupt */
-    return SQLITE_CORRUPT_PAGE(pPage);
-  }
-  testcase( pPage->nCell==MX_CELL(pBt) );
-  /* EVIDENCE-OF: R-24089-57979 If a page contains no cells (which is only
-  ** possible for a root page of a table that contains no rows) then the
-  ** offset to the cell content area will equal the page size minus the
-  ** bytes of reserved space. */
-  assert( pPage->nCell>0
-       || get2byteNotZero(&data[5])==(int)pBt->usableSize
-       || CORRUPT_DB );
-  pPage->nFree = -1;  /* Indicate that this value is yet uncomputed */
-  pPage->isInit = 1;
-  if( pBt->db->flags & SQLITE_CellSizeCk ){
-    return btreeCellSizeCheck(pPage);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Set up a raw page so that it looks like a database page holding
-** no entries.
-*/
-static void zeroPage(MemPage *pPage, int flags){
-  unsigned char *data = pPage->aData;
-  BtShared *pBt = pPage->pBt;
-  u8 hdr = pPage->hdrOffset;
-  u16 first;
-
-  assert( tdsqlite3PagerPagenumber(pPage->pDbPage)==pPage->pgno );
-  assert( tdsqlite3PagerGetExtra(pPage->pDbPage) == (void*)pPage );
-  assert( tdsqlite3PagerGetData(pPage->pDbPage) == data );
-  assert( tdsqlite3PagerIswriteable(pPage->pDbPage) );
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  if( pBt->btsFlags & BTS_FAST_SECURE ){
-    memset(&data[hdr], 0, pBt->usableSize - hdr);
-  }
-  data[hdr] = (char)flags;
-  first = hdr + ((flags&PTF_LEAF)==0 ? 12 : 8);
-  memset(&data[hdr+1], 0, 4);
-  data[hdr+7] = 0;
-  put2byte(&data[hdr+5], pBt->usableSize);
-  pPage->nFree = (u16)(pBt->usableSize - first);
-  decodeFlags(pPage, flags);
-  pPage->cellOffset = first;
-  pPage->aDataEnd = &data[pBt->usableSize];
-  pPage->aCellIdx = &data[first];
-  pPage->aDataOfst = &data[pPage->childPtrSize];
-  pPage->nOverflow = 0;
-  assert( pBt->pageSize>=512 && pBt->pageSize<=65536 );
-  pPage->maskPage = (u16)(pBt->pageSize - 1);
-  pPage->nCell = 0;
-  pPage->isInit = 1;
-}
-
-
-/*
-** Convert a DbPage obtained from the pager into a MemPage used by
-** the btree layer.
-*/
-static MemPage *btreePageFromDbPage(DbPage *pDbPage, Pgno pgno, BtShared *pBt){
-  MemPage *pPage = (MemPage*)tdsqlite3PagerGetExtra(pDbPage);
-  if( pgno!=pPage->pgno ){
-    pPage->aData = tdsqlite3PagerGetData(pDbPage);
-    pPage->pDbPage = pDbPage;
-    pPage->pBt = pBt;
-    pPage->pgno = pgno;
-    pPage->hdrOffset = pgno==1 ? 100 : 0;
-  }
-  assert( pPage->aData==tdsqlite3PagerGetData(pDbPage) );
-  return pPage; 
-}
-
-/*
-** Get a page from the pager.  Initialize the MemPage.pBt and
-** MemPage.aData elements if needed.  See also: btreeGetUnusedPage().
-**
-** If the PAGER_GET_NOCONTENT flag is set, it means that we do not care
-** about the content of the page at this time.  So do not go to the disk
-** to fetch the content.  Just fill in the content with zeros for now.
-** If in the future we call tdsqlite3PagerWrite() on this page, that
-** means we have started to be concerned about content and the disk
-** read should occur at that point.
-*/
-static int btreeGetPage(
-  BtShared *pBt,       /* The btree */
-  Pgno pgno,           /* Number of the page to fetch */
-  MemPage **ppPage,    /* Return the page in this parameter */
-  int flags            /* PAGER_GET_NOCONTENT or PAGER_GET_READONLY */
-){
-  int rc;
-  DbPage *pDbPage;
-
-  assert( flags==0 || flags==PAGER_GET_NOCONTENT || flags==PAGER_GET_READONLY );
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  rc = tdsqlite3PagerGet(pBt->pPager, pgno, (DbPage**)&pDbPage, flags);
-  if( rc ) return rc;
-  *ppPage = btreePageFromDbPage(pDbPage, pgno, pBt);
-  return SQLITE_OK;
-}
-
-/*
-** Retrieve a page from the pager cache. If the requested page is not
-** already in the pager cache return NULL. Initialize the MemPage.pBt and
-** MemPage.aData elements if needed.
-*/
-static MemPage *btreePageLookup(BtShared *pBt, Pgno pgno){
-  DbPage *pDbPage;
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  pDbPage = tdsqlite3PagerLookup(pBt->pPager, pgno);
-  if( pDbPage ){
-    return btreePageFromDbPage(pDbPage, pgno, pBt);
-  }
-  return 0;
-}
-
-/*
-** Return the size of the database file in pages. If there is any kind of
-** error, return ((unsigned int)-1).
-*/
-static Pgno btreePagecount(BtShared *pBt){
-  assert( (pBt->nPage & 0x80000000)==0 || CORRUPT_DB );
-  return pBt->nPage;
-}
-SQLITE_PRIVATE u32 tdsqlite3BtreeLastPage(Btree *p){
-  assert( tdsqlite3BtreeHoldsMutex(p) );
-  return btreePagecount(p->pBt) & 0x7fffffff;
-}
-
-/*
-** Get a page from the pager and initialize it.
-**
-** If pCur!=0 then the page is being fetched as part of a moveToChild()
-** call.  Do additional sanity checking on the page in this case.
-** And if the fetch fails, this routine must decrement pCur->iPage.
-**
-** The page is fetched as read-write unless pCur is not NULL and is
-** a read-only cursor.
-**
-** If an error occurs, then *ppPage is undefined. It
-** may remain unchanged, or it may be set to an invalid value.
-*/
-static int getAndInitPage(
-  BtShared *pBt,                  /* The database file */
-  Pgno pgno,                      /* Number of the page to get */
-  MemPage **ppPage,               /* Write the page pointer here */
-  BtCursor *pCur,                 /* Cursor to receive the page, or NULL */
-  int bReadOnly                   /* True for a read-only page */
-){
-  int rc;
-  DbPage *pDbPage;
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( pCur==0 || ppPage==&pCur->pPage );
-  assert( pCur==0 || bReadOnly==pCur->curPagerFlags );
-  assert( pCur==0 || pCur->iPage>0 );
-
-  if( pgno>btreePagecount(pBt) ){
-    rc = SQLITE_CORRUPT_BKPT;
-    goto getAndInitPage_error1;
-  }
-  rc = tdsqlite3PagerGet(pBt->pPager, pgno, (DbPage**)&pDbPage, bReadOnly);
-  if( rc ){
-    goto getAndInitPage_error1;
-  }
-  *ppPage = (MemPage*)tdsqlite3PagerGetExtra(pDbPage);
-  if( (*ppPage)->isInit==0 ){
-    btreePageFromDbPage(pDbPage, pgno, pBt);
-    rc = btreeInitPage(*ppPage);
-    if( rc!=SQLITE_OK ){
-      goto getAndInitPage_error2;
-    }
-  }
-  assert( (*ppPage)->pgno==pgno );
-  assert( (*ppPage)->aData==tdsqlite3PagerGetData(pDbPage) );
-
-  /* If obtaining a child page for a cursor, we must verify that the page is
-  ** compatible with the root page. */
-  if( pCur && ((*ppPage)->nCell<1 || (*ppPage)->intKey!=pCur->curIntKey) ){
-    rc = SQLITE_CORRUPT_PGNO(pgno);
-    goto getAndInitPage_error2;
-  }
-  return SQLITE_OK;
-
-getAndInitPage_error2:
-  releasePage(*ppPage);
-getAndInitPage_error1:
-  if( pCur ){
-    pCur->iPage--;
-    pCur->pPage = pCur->apPage[pCur->iPage];
-  }
-  testcase( pgno==0 );
-  assert( pgno!=0 || rc==SQLITE_CORRUPT );
-  return rc;
-}
-
-/*
-** Release a MemPage.  This should be called once for each prior
-** call to btreeGetPage.
-**
-** Page1 is a special case and must be released using releasePageOne().
-*/
-static void releasePageNotNull(MemPage *pPage){
-  assert( pPage->aData );
-  assert( pPage->pBt );
-  assert( pPage->pDbPage!=0 );
-  assert( tdsqlite3PagerGetExtra(pPage->pDbPage) == (void*)pPage );
-  assert( tdsqlite3PagerGetData(pPage->pDbPage)==pPage->aData );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  tdsqlite3PagerUnrefNotNull(pPage->pDbPage);
-}
-static void releasePage(MemPage *pPage){
-  if( pPage ) releasePageNotNull(pPage);
-}
-static void releasePageOne(MemPage *pPage){
-  assert( pPage!=0 );
-  assert( pPage->aData );
-  assert( pPage->pBt );
-  assert( pPage->pDbPage!=0 );
-  assert( tdsqlite3PagerGetExtra(pPage->pDbPage) == (void*)pPage );
-  assert( tdsqlite3PagerGetData(pPage->pDbPage)==pPage->aData );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  tdsqlite3PagerUnrefPageOne(pPage->pDbPage);
-}
-
-/*
-** Get an unused page.
-**
-** This works just like btreeGetPage() with the addition:
-**
-**   *  If the page is already in use for some other purpose, immediately
-**      release it and return an SQLITE_CURRUPT error.
-**   *  Make sure the isInit flag is clear
-*/
-static int btreeGetUnusedPage(
-  BtShared *pBt,       /* The btree */
-  Pgno pgno,           /* Number of the page to fetch */
-  MemPage **ppPage,    /* Return the page in this parameter */
-  int flags            /* PAGER_GET_NOCONTENT or PAGER_GET_READONLY */
-){
-  int rc = btreeGetPage(pBt, pgno, ppPage, flags);
-  if( rc==SQLITE_OK ){
-    if( tdsqlite3PagerPageRefcount((*ppPage)->pDbPage)>1 ){
-      releasePage(*ppPage);
-      *ppPage = 0;
-      return SQLITE_CORRUPT_BKPT;
-    }
-    (*ppPage)->isInit = 0;
-  }else{
-    *ppPage = 0;
-  }
-  return rc;
-}
-
-
-/*
-** During a rollback, when the pager reloads information into the cache
-** so that the cache is restored to its original state at the start of
-** the transaction, for each page restored this routine is called.
-**
-** This routine needs to reset the extra data section at the end of the
-** page to agree with the restored data.
-*/
-static void pageReinit(DbPage *pData){
-  MemPage *pPage;
-  pPage = (MemPage *)tdsqlite3PagerGetExtra(pData);
-  assert( tdsqlite3PagerPageRefcount(pData)>0 );
-  if( pPage->isInit ){
-    assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-    pPage->isInit = 0;
-    if( tdsqlite3PagerPageRefcount(pData)>1 ){
-      /* pPage might not be a btree page;  it might be an overflow page
-      ** or ptrmap page or a free page.  In those cases, the following
-      ** call to btreeInitPage() will likely return SQLITE_CORRUPT.
-      ** But no harm is done by this.  And it is very important that
-      ** btreeInitPage() be called on every btree page so we make
-      ** the call for every page that comes in for re-initing. */
-      btreeInitPage(pPage);
-    }
-  }
-}
-
-/*
-** Invoke the busy handler for a btree.
-*/
-static int btreeInvokeBusyHandler(void *pArg){
-  BtShared *pBt = (BtShared*)pArg;
-  assert( pBt->db );
-  assert( tdsqlite3_mutex_held(pBt->db->mutex) );
-  return tdsqlite3InvokeBusyHandler(&pBt->db->busyHandler,
-                                  tdsqlite3PagerFile(pBt->pPager));
-}
-
-/*
-** Open a database file.
-** 
-** zFilename is the name of the database file.  If zFilename is NULL
-** then an ephemeral database is created.  The ephemeral database might
-** be exclusively in memory, or it might use a disk-based memory cache.
-** Either way, the ephemeral database will be automatically deleted 
-** when tdsqlite3BtreeClose() is called.
-**
-** If zFilename is ":memory:" then an in-memory database is created
-** that is automatically destroyed when it is closed.
-**
-** The "flags" parameter is a bitmask that might contain bits like
-** BTREE_OMIT_JOURNAL and/or BTREE_MEMORY.
-**
-** If the database is already opened in the same database connection
-** and we are in shared cache mode, then the open will fail with an
-** SQLITE_CONSTRAINT error.  We cannot allow two or more BtShared
-** objects in the same database connection since doing so will lead
-** to problems with locking.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeOpen(
-  tdsqlite3_vfs *pVfs,      /* VFS to use for this b-tree */
-  const char *zFilename,  /* Name of the file containing the BTree database */
-  tdsqlite3 *db,            /* Associated database handle */
-  Btree **ppBtree,        /* Pointer to new Btree object written here */
-  int flags,              /* Options */
-  int vfsFlags            /* Flags passed through to tdsqlite3_vfs.xOpen() */
-){
-  BtShared *pBt = 0;             /* Shared part of btree structure */
-  Btree *p;                      /* Handle to return */
-  tdsqlite3_mutex *mutexOpen = 0;  /* Prevents a race condition. Ticket #3537 */
-  int rc = SQLITE_OK;            /* Result code from this function */
-  u8 nReserve;                   /* Byte of unused space on each page */
-  unsigned char zDbHeader[100];  /* Database header content */
-
-  /* True if opening an ephemeral, temporary database */
-  const int isTempDb = zFilename==0 || zFilename[0]==0;
-
-  /* Set the variable isMemdb to true for an in-memory database, or 
-  ** false for a file-based database.
-  */
-#ifdef SQLITE_OMIT_MEMORYDB
-  const int isMemdb = 0;
-#else
-  const int isMemdb = (zFilename && strcmp(zFilename, ":memory:")==0)
-                       || (isTempDb && tdsqlite3TempInMemory(db))
-                       || (vfsFlags & SQLITE_OPEN_MEMORY)!=0;
-#endif
-
-  assert( db!=0 );
-  assert( pVfs!=0 );
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  assert( (flags&0xff)==flags );   /* flags fit in 8 bits */
-
-  /* Only a BTREE_SINGLE database can be BTREE_UNORDERED */
-  assert( (flags & BTREE_UNORDERED)==0 || (flags & BTREE_SINGLE)!=0 );
-
-  /* A BTREE_SINGLE database is always a temporary and/or ephemeral */
-  assert( (flags & BTREE_SINGLE)==0 || isTempDb );
-
-  if( isMemdb ){
-    flags |= BTREE_MEMORY;
-  }
-  if( (vfsFlags & SQLITE_OPEN_MAIN_DB)!=0 && (isMemdb || isTempDb) ){
-    vfsFlags = (vfsFlags & ~SQLITE_OPEN_MAIN_DB) | SQLITE_OPEN_TEMP_DB;
-  }
-  p = tdsqlite3MallocZero(sizeof(Btree));
-  if( !p ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  p->inTrans = TRANS_NONE;
-  p->db = db;
-#ifndef SQLITE_OMIT_SHARED_CACHE
-  p->lock.pBtree = p;
-  p->lock.iTable = 1;
-#endif
-
-#if !defined(SQLITE_OMIT_SHARED_CACHE) && !defined(SQLITE_OMIT_DISKIO)
-  /*
-  ** If this Btree is a candidate for shared cache, try to find an
-  ** existing BtShared object that we can share with
-  */
-  if( isTempDb==0 && (isMemdb==0 || (vfsFlags&SQLITE_OPEN_URI)!=0) ){
-    if( vfsFlags & SQLITE_OPEN_SHAREDCACHE ){
-      int nFilename = tdsqlite3Strlen30(zFilename)+1;
-      int nFullPathname = pVfs->mxPathname+1;
-      char *zFullPathname = tdsqlite3Malloc(MAX(nFullPathname,nFilename));
-      MUTEX_LOGIC( tdsqlite3_mutex *mutexShared; )
-
-      p->sharable = 1;
-      if( !zFullPathname ){
-        tdsqlite3_free(p);
-        return SQLITE_NOMEM_BKPT;
-      }
-      if( isMemdb ){
-        memcpy(zFullPathname, zFilename, nFilename);
-      }else{
-        rc = tdsqlite3OsFullPathname(pVfs, zFilename,
-                                   nFullPathname, zFullPathname);
-        if( rc ){
-          if( rc==SQLITE_OK_SYMLINK ){
-            rc = SQLITE_OK;
-          }else{
-            tdsqlite3_free(zFullPathname);
-            tdsqlite3_free(p);
-            return rc;
-          }
-        }
-      }
-#if SQLITE_THREADSAFE
-      mutexOpen = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_OPEN);
-      tdsqlite3_mutex_enter(mutexOpen);
-      mutexShared = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
-      tdsqlite3_mutex_enter(mutexShared);
-#endif
-      for(pBt=GLOBAL(BtShared*,tdsqlite3SharedCacheList); pBt; pBt=pBt->pNext){
-        assert( pBt->nRef>0 );
-        if( 0==strcmp(zFullPathname, tdsqlite3PagerFilename(pBt->pPager, 0))
-                 && tdsqlite3PagerVfs(pBt->pPager)==pVfs ){
-          int iDb;
-          for(iDb=db->nDb-1; iDb>=0; iDb--){
-            Btree *pExisting = db->aDb[iDb].pBt;
-            if( pExisting && pExisting->pBt==pBt ){
-              tdsqlite3_mutex_leave(mutexShared);
-              tdsqlite3_mutex_leave(mutexOpen);
-              tdsqlite3_free(zFullPathname);
-              tdsqlite3_free(p);
-              return SQLITE_CONSTRAINT;
-            }
-          }
-          p->pBt = pBt;
-          pBt->nRef++;
-          break;
-        }
-      }
-      tdsqlite3_mutex_leave(mutexShared);
-      tdsqlite3_free(zFullPathname);
-    }
-#ifdef SQLITE_DEBUG
-    else{
-      /* In debug mode, we mark all persistent databases as sharable
-      ** even when they are not.  This exercises the locking code and
-      ** gives more opportunity for asserts(tdsqlite3_mutex_held())
-      ** statements to find locking problems.
-      */
-      p->sharable = 1;
-    }
-#endif
-  }
-#endif
-  if( pBt==0 ){
-    /*
-    ** The following asserts make sure that structures used by the btree are
-    ** the right size.  This is to guard against size changes that result
-    ** when compiling on a different architecture.
-    */
-    assert( sizeof(i64)==8 );
-    assert( sizeof(u64)==8 );
-    assert( sizeof(u32)==4 );
-    assert( sizeof(u16)==2 );
-    assert( sizeof(Pgno)==4 );
-  
-    pBt = tdsqlite3MallocZero( sizeof(*pBt) );
-    if( pBt==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-      goto btree_open_out;
-    }
-    rc = tdsqlite3PagerOpen(pVfs, &pBt->pPager, zFilename,
-                          sizeof(MemPage), flags, vfsFlags, pageReinit);
-    if( rc==SQLITE_OK ){
-      tdsqlite3PagerSetMmapLimit(pBt->pPager, db->szMmap);
-      rc = tdsqlite3PagerReadFileheader(pBt->pPager,sizeof(zDbHeader),zDbHeader);
-    }
-    if( rc!=SQLITE_OK ){
-      goto btree_open_out;
-    }
-    pBt->openFlags = (u8)flags;
-    pBt->db = db;
-    tdsqlite3PagerSetBusyHandler(pBt->pPager, btreeInvokeBusyHandler, pBt);
-    p->pBt = pBt;
-  
-    pBt->pCursor = 0;
-    pBt->pPage1 = 0;
-    if( tdsqlite3PagerIsreadonly(pBt->pPager) ) pBt->btsFlags |= BTS_READ_ONLY;
-#if defined(SQLITE_SECURE_DELETE)
-    pBt->btsFlags |= BTS_SECURE_DELETE;
-#elif defined(SQLITE_FAST_SECURE_DELETE)
-    pBt->btsFlags |= BTS_OVERWRITE;
-#endif
-    /* EVIDENCE-OF: R-51873-39618 The page size for a database file is
-    ** determined by the 2-byte integer located at an offset of 16 bytes from
-    ** the beginning of the database file. */
-    pBt->pageSize = (zDbHeader[16]<<8) | (zDbHeader[17]<<16);
-    if( pBt->pageSize<512 || pBt->pageSize>SQLITE_MAX_PAGE_SIZE
-         || ((pBt->pageSize-1)&pBt->pageSize)!=0 ){
-      pBt->pageSize = 0;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-      /* If the magic name ":memory:" will create an in-memory database, then
-      ** leave the autoVacuum mode at 0 (do not auto-vacuum), even if
-      ** SQLITE_DEFAULT_AUTOVACUUM is true. On the other hand, if
-      ** SQLITE_OMIT_MEMORYDB has been defined, then ":memory:" is just a
-      ** regular file-name. In this case the auto-vacuum applies as per normal.
-      */
-      if( zFilename && !isMemdb ){
-        pBt->autoVacuum = (SQLITE_DEFAULT_AUTOVACUUM ? 1 : 0);
-        pBt->incrVacuum = (SQLITE_DEFAULT_AUTOVACUUM==2 ? 1 : 0);
-      }
-#endif
-      nReserve = 0;
-    }else{
-      /* EVIDENCE-OF: R-37497-42412 The size of the reserved region is
-      ** determined by the one-byte unsigned integer found at an offset of 20
-      ** into the database file header. */
-      nReserve = zDbHeader[20];
-      pBt->btsFlags |= BTS_PAGESIZE_FIXED;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-      pBt->autoVacuum = (get4byte(&zDbHeader[36 + 4*4])?1:0);
-      pBt->incrVacuum = (get4byte(&zDbHeader[36 + 7*4])?1:0);
-#endif
-    }
-    rc = tdsqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize, nReserve);
-    if( rc ) goto btree_open_out;
-    pBt->usableSize = pBt->pageSize - nReserve;
-    assert( (pBt->pageSize & 7)==0 );  /* 8-byte alignment of pageSize */
-   
-#if !defined(SQLITE_OMIT_SHARED_CACHE) && !defined(SQLITE_OMIT_DISKIO)
-    /* Add the new BtShared object to the linked list sharable BtShareds.
-    */
-    pBt->nRef = 1;
-    if( p->sharable ){
-      MUTEX_LOGIC( tdsqlite3_mutex *mutexShared; )
-      MUTEX_LOGIC( mutexShared = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);)
-      if( SQLITE_THREADSAFE && tdsqlite3GlobalConfig.bCoreMutex ){
-        pBt->mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_FAST);
-        if( pBt->mutex==0 ){
-          rc = SQLITE_NOMEM_BKPT;
-          goto btree_open_out;
-        }
-      }
-      tdsqlite3_mutex_enter(mutexShared);
-      pBt->pNext = GLOBAL(BtShared*,tdsqlite3SharedCacheList);
-      GLOBAL(BtShared*,tdsqlite3SharedCacheList) = pBt;
-      tdsqlite3_mutex_leave(mutexShared);
-    }
-#endif
-  }
-
-#if !defined(SQLITE_OMIT_SHARED_CACHE) && !defined(SQLITE_OMIT_DISKIO)
-  /* If the new Btree uses a sharable pBtShared, then link the new
-  ** Btree into the list of all sharable Btrees for the same connection.
-  ** The list is kept in ascending order by pBt address.
-  */
-  if( p->sharable ){
-    int i;
-    Btree *pSib;
-    for(i=0; i<db->nDb; i++){
-      if( (pSib = db->aDb[i].pBt)!=0 && pSib->sharable ){
-        while( pSib->pPrev ){ pSib = pSib->pPrev; }
-        if( (uptr)p->pBt<(uptr)pSib->pBt ){
-          p->pNext = pSib;
-          p->pPrev = 0;
-          pSib->pPrev = p;
-        }else{
-          while( pSib->pNext && (uptr)pSib->pNext->pBt<(uptr)p->pBt ){
-            pSib = pSib->pNext;
-          }
-          p->pNext = pSib->pNext;
-          p->pPrev = pSib;
-          if( p->pNext ){
-            p->pNext->pPrev = p;
-          }
-          pSib->pNext = p;
-        }
-        break;
-      }
-    }
-  }
-#endif
-  *ppBtree = p;
-
-btree_open_out:
-  if( rc!=SQLITE_OK ){
-    if( pBt && pBt->pPager ){
-      tdsqlite3PagerClose(pBt->pPager, 0);
-    }
-    tdsqlite3_free(pBt);
-    tdsqlite3_free(p);
-    *ppBtree = 0;
-  }else{
-    tdsqlite3_file *pFile;
-
-    /* If the B-Tree was successfully opened, set the pager-cache size to the
-    ** default value. Except, when opening on an existing shared pager-cache,
-    ** do not change the pager-cache size.
-    */
-    if( tdsqlite3BtreeSchema(p, 0, 0)==0 ){
-      tdsqlite3PagerSetCachesize(p->pBt->pPager, SQLITE_DEFAULT_CACHE_SIZE);
-    }
-
-    pFile = tdsqlite3PagerFile(pBt->pPager);
-    if( pFile->pMethods ){
-      tdsqlite3OsFileControlHint(pFile, SQLITE_FCNTL_PDB, (void*)&pBt->db);
-    }
-  }
-  if( mutexOpen ){
-    assert( tdsqlite3_mutex_held(mutexOpen) );
-    tdsqlite3_mutex_leave(mutexOpen);
-  }
-  assert( rc!=SQLITE_OK || tdsqlite3BtreeConnectionCount(*ppBtree)>0 );
-  return rc;
-}
-
-/*
-** Decrement the BtShared.nRef counter.  When it reaches zero,
-** remove the BtShared structure from the sharing list.  Return
-** true if the BtShared.nRef counter reaches zero and return
-** false if it is still positive.
-*/
-static int removeFromSharingList(BtShared *pBt){
-#ifndef SQLITE_OMIT_SHARED_CACHE
-  MUTEX_LOGIC( tdsqlite3_mutex *pMaster; )
-  BtShared *pList;
-  int removed = 0;
-
-  assert( tdsqlite3_mutex_notheld(pBt->mutex) );
-  MUTEX_LOGIC( pMaster = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); )
-  tdsqlite3_mutex_enter(pMaster);
-  pBt->nRef--;
-  if( pBt->nRef<=0 ){
-    if( GLOBAL(BtShared*,tdsqlite3SharedCacheList)==pBt ){
-      GLOBAL(BtShared*,tdsqlite3SharedCacheList) = pBt->pNext;
-    }else{
-      pList = GLOBAL(BtShared*,tdsqlite3SharedCacheList);
-      while( ALWAYS(pList) && pList->pNext!=pBt ){
-        pList=pList->pNext;
-      }
-      if( ALWAYS(pList) ){
-        pList->pNext = pBt->pNext;
-      }
-    }
-    if( SQLITE_THREADSAFE ){
-      tdsqlite3_mutex_free(pBt->mutex);
-    }
-    removed = 1;
-  }
-  tdsqlite3_mutex_leave(pMaster);
-  return removed;
-#else
-  return 1;
-#endif
-}
-
-/*
-** Make sure pBt->pTmpSpace points to an allocation of 
-** MX_CELL_SIZE(pBt) bytes with a 4-byte prefix for a left-child
-** pointer.
-*/
-static void allocateTempSpace(BtShared *pBt){
-  if( !pBt->pTmpSpace ){
-    pBt->pTmpSpace = tdsqlite3PageMalloc( pBt->pageSize );
-
-    /* One of the uses of pBt->pTmpSpace is to format cells before
-    ** inserting them into a leaf page (function fillInCell()). If
-    ** a cell is less than 4 bytes in size, it is rounded up to 4 bytes
-    ** by the various routines that manipulate binary cells. Which
-    ** can mean that fillInCell() only initializes the first 2 or 3
-    ** bytes of pTmpSpace, but that the first 4 bytes are copied from
-    ** it into a database page. This is not actually a problem, but it
-    ** does cause a valgrind error when the 1 or 2 bytes of unitialized 
-    ** data is passed to system call write(). So to avoid this error,
-    ** zero the first 4 bytes of temp space here.
-    **
-    ** Also:  Provide four bytes of initialized space before the
-    ** beginning of pTmpSpace as an area available to prepend the
-    ** left-child pointer to the beginning of a cell.
-    */
-    if( pBt->pTmpSpace ){
-      memset(pBt->pTmpSpace, 0, 8);
-      pBt->pTmpSpace += 4;
-    }
-  }
-}
-
-/*
-** Free the pBt->pTmpSpace allocation
-*/
-static void freeTempSpace(BtShared *pBt){
-  if( pBt->pTmpSpace ){
-    pBt->pTmpSpace -= 4;
-    tdsqlite3PageFree(pBt->pTmpSpace);
-    pBt->pTmpSpace = 0;
-  }
-}
-
-/*
-** Close an open database and invalidate all cursors.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeClose(Btree *p){
-  BtShared *pBt = p->pBt;
-  BtCursor *pCur;
-
-  /* Close all cursors opened via this handle.  */
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  tdsqlite3BtreeEnter(p);
-  pCur = pBt->pCursor;
-  while( pCur ){
-    BtCursor *pTmp = pCur;
-    pCur = pCur->pNext;
-    if( pTmp->pBtree==p ){
-      tdsqlite3BtreeCloseCursor(pTmp);
-    }
-  }
-
-  /* Rollback any active transaction and free the handle structure.
-  ** The call to tdsqlite3BtreeRollback() drops any table-locks held by
-  ** this handle.
-  */
-  tdsqlite3BtreeRollback(p, SQLITE_OK, 0);
-  tdsqlite3BtreeLeave(p);
-
-  /* If there are still other outstanding references to the shared-btree
-  ** structure, return now. The remainder of this procedure cleans 
-  ** up the shared-btree.
-  */
-  assert( p->wantToLock==0 && p->locked==0 );
-  if( !p->sharable || removeFromSharingList(pBt) ){
-    /* The pBt is no longer on the sharing list, so we can access
-    ** it without having to hold the mutex.
-    **
-    ** Clean out and delete the BtShared object.
-    */
-    assert( !pBt->pCursor );
-    tdsqlite3PagerClose(pBt->pPager, p->db);
-    if( pBt->xFreeSchema && pBt->pSchema ){
-      pBt->xFreeSchema(pBt->pSchema);
-    }
-    tdsqlite3DbFree(0, pBt->pSchema);
-    freeTempSpace(pBt);
-    tdsqlite3_free(pBt);
-  }
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-  assert( p->wantToLock==0 );
-  assert( p->locked==0 );
-  if( p->pPrev ) p->pPrev->pNext = p->pNext;
-  if( p->pNext ) p->pNext->pPrev = p->pPrev;
-#endif
-
-  tdsqlite3_free(p);
-  return SQLITE_OK;
-}
-
-/*
-** Change the "soft" limit on the number of pages in the cache.
-** Unused and unmodified pages will be recycled when the number of
-** pages in the cache exceeds this soft limit.  But the size of the
-** cache is allowed to grow larger than this limit if it contains
-** dirty pages or pages still in active use.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSetCacheSize(Btree *p, int mxPage){
-  BtShared *pBt = p->pBt;
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  tdsqlite3BtreeEnter(p);
-  tdsqlite3PagerSetCachesize(pBt->pPager, mxPage);
-  tdsqlite3BtreeLeave(p);
-  return SQLITE_OK;
-}
-
-/*
-** Change the "spill" limit on the number of pages in the cache.
-** If the number of pages exceeds this limit during a write transaction,
-** the pager might attempt to "spill" pages to the journal early in
-** order to free up memory.
-**
-** The value returned is the current spill size.  If zero is passed
-** as an argument, no changes are made to the spill size setting, so
-** using mxPage of 0 is a way to query the current spill size.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSetSpillSize(Btree *p, int mxPage){
-  BtShared *pBt = p->pBt;
-  int res;
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  tdsqlite3BtreeEnter(p);
-  res = tdsqlite3PagerSetSpillsize(pBt->pPager, mxPage);
-  tdsqlite3BtreeLeave(p);
-  return res;
-}
-
-#if SQLITE_MAX_MMAP_SIZE>0
-/*
-** Change the limit on the amount of the database file that may be
-** memory mapped.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSetMmapLimit(Btree *p, tdsqlite3_int64 szMmap){
-  BtShared *pBt = p->pBt;
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  tdsqlite3BtreeEnter(p);
-  tdsqlite3PagerSetMmapLimit(pBt->pPager, szMmap);
-  tdsqlite3BtreeLeave(p);
-  return SQLITE_OK;
-}
-#endif /* SQLITE_MAX_MMAP_SIZE>0 */
-
-/*
-** Change the way data is synced to disk in order to increase or decrease
-** how well the database resists damage due to OS crashes and power
-** failures.  Level 1 is the same as asynchronous (no syncs() occur and
-** there is a high probability of damage)  Level 2 is the default.  There
-** is a very low but non-zero probability of damage.  Level 3 reduces the
-** probability of damage to near zero but with a write performance reduction.
-*/
-#ifndef SQLITE_OMIT_PAGER_PRAGMAS
-SQLITE_PRIVATE int tdsqlite3BtreeSetPagerFlags(
-  Btree *p,              /* The btree to set the safety level on */
-  unsigned pgFlags       /* Various PAGER_* flags */
-){
-  BtShared *pBt = p->pBt;
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  tdsqlite3BtreeEnter(p);
-  tdsqlite3PagerSetFlags(pBt->pPager, pgFlags);
-  tdsqlite3BtreeLeave(p);
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** Change the default pages size and the number of reserved bytes per page.
-** Or, if the page size has already been fixed, return SQLITE_READONLY 
-** without changing anything.
-**
-** The page size must be a power of 2 between 512 and 65536.  If the page
-** size supplied does not meet this constraint then the page size is not
-** changed.
-**
-** Page sizes are constrained to be a power of two so that the region
-** of the database file used for locking (beginning at PENDING_BYTE,
-** the first byte past the 1GB boundary, 0x40000000) needs to occur
-** at the beginning of a page.
-**
-** If parameter nReserve is less than zero, then the number of reserved
-** bytes per page is left unchanged.
-**
-** If the iFix!=0 then the BTS_PAGESIZE_FIXED flag is set so that the page size
-** and autovacuum mode can no longer be changed.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSetPageSize(Btree *p, int pageSize, int nReserve, int iFix){
-  int rc = SQLITE_OK;
-  BtShared *pBt = p->pBt;
-  assert( nReserve>=-1 && nReserve<=255 );
-  tdsqlite3BtreeEnter(p);
-#if SQLITE_HAS_CODEC
-  if( nReserve>pBt->optimalReserve ) pBt->optimalReserve = (u8)nReserve;
-#endif
-  if( pBt->btsFlags & BTS_PAGESIZE_FIXED ){
-    tdsqlite3BtreeLeave(p);
-    return SQLITE_READONLY;
-  }
-  if( nReserve<0 ){
-    nReserve = pBt->pageSize - pBt->usableSize;
-  }
-  assert( nReserve>=0 && nReserve<=255 );
-  if( pageSize>=512 && pageSize<=SQLITE_MAX_PAGE_SIZE &&
-        ((pageSize-1)&pageSize)==0 ){
-    assert( (pageSize & 7)==0 );
-    assert( !pBt->pCursor );
-    pBt->pageSize = (u32)pageSize;
-    freeTempSpace(pBt);
-  }
-  rc = tdsqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize, nReserve);
-  pBt->usableSize = pBt->pageSize - (u16)nReserve;
-  if( iFix ) pBt->btsFlags |= BTS_PAGESIZE_FIXED;
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-/*
-** Return the currently defined page size
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeGetPageSize(Btree *p){
-  return p->pBt->pageSize;
-}
-
-/*
-** This function is similar to tdsqlite3BtreeGetReserve(), except that it
-** may only be called if it is guaranteed that the b-tree mutex is already
-** held.
-**
-** This is useful in one special case in the backup API code where it is
-** known that the shared b-tree mutex is held, but the mutex on the 
-** database handle that owns *p is not. In this case if tdsqlite3BtreeEnter()
-** were to be called, it might collide with some other operation on the
-** database handle that owns *p, causing undefined behavior.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeGetReserveNoMutex(Btree *p){
-  int n;
-  assert( tdsqlite3_mutex_held(p->pBt->mutex) );
-  n = p->pBt->pageSize - p->pBt->usableSize;
-  return n;
-}
-
-/*
-** Return the number of bytes of space at the end of every page that
-** are intentually left unused.  This is the "reserved" space that is
-** sometimes used by extensions.
-**
-** If SQLITE_HAS_MUTEX is defined then the number returned is the
-** greater of the current reserved space and the maximum requested
-** reserve space.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeGetOptimalReserve(Btree *p){
-  int n;
-  tdsqlite3BtreeEnter(p);
-  n = tdsqlite3BtreeGetReserveNoMutex(p);
-#ifdef SQLITE_HAS_CODEC
-  if( n<p->pBt->optimalReserve ) n = p->pBt->optimalReserve;
-#endif
-  tdsqlite3BtreeLeave(p);
-  return n;
-}
-
-
-/*
-** Set the maximum page count for a database if mxPage is positive.
-** No changes are made if mxPage is 0 or negative.
-** Regardless of the value of mxPage, return the maximum page count.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeMaxPageCount(Btree *p, int mxPage){
-  int n;
-  tdsqlite3BtreeEnter(p);
-  n = tdsqlite3PagerMaxPageCount(p->pBt->pPager, mxPage);
-  tdsqlite3BtreeLeave(p);
-  return n;
-}
-
-/*
-** Change the values for the BTS_SECURE_DELETE and BTS_OVERWRITE flags:
-**
-**    newFlag==0       Both BTS_SECURE_DELETE and BTS_OVERWRITE are cleared
-**    newFlag==1       BTS_SECURE_DELETE set and BTS_OVERWRITE is cleared
-**    newFlag==2       BTS_SECURE_DELETE cleared and BTS_OVERWRITE is set
-**    newFlag==(-1)    No changes
-**
-** This routine acts as a query if newFlag is less than zero
-**
-** With BTS_OVERWRITE set, deleted content is overwritten by zeros, but
-** freelist leaf pages are not written back to the database.  Thus in-page
-** deleted content is cleared, but freelist deleted content is not.
-**
-** With BTS_SECURE_DELETE, operation is like BTS_OVERWRITE with the addition
-** that freelist leaf pages are written back into the database, increasing
-** the amount of disk I/O.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSecureDelete(Btree *p, int newFlag){
-  int b;
-  if( p==0 ) return 0;
-  tdsqlite3BtreeEnter(p);
-  assert( BTS_OVERWRITE==BTS_SECURE_DELETE*2 );
-  assert( BTS_FAST_SECURE==(BTS_OVERWRITE|BTS_SECURE_DELETE) );
-  if( newFlag>=0 ){
-    p->pBt->btsFlags &= ~BTS_FAST_SECURE;
-    p->pBt->btsFlags |= BTS_SECURE_DELETE*newFlag;
-  }
-  b = (p->pBt->btsFlags & BTS_FAST_SECURE)/BTS_SECURE_DELETE;
-  tdsqlite3BtreeLeave(p);
-  return b;
-}
-
-/*
-** Change the 'auto-vacuum' property of the database. If the 'autoVacuum'
-** parameter is non-zero, then auto-vacuum mode is enabled. If zero, it
-** is disabled. The default value for the auto-vacuum property is 
-** determined by the SQLITE_DEFAULT_AUTOVACUUM macro.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSetAutoVacuum(Btree *p, int autoVacuum){
-#ifdef SQLITE_OMIT_AUTOVACUUM
-  return SQLITE_READONLY;
-#else
-  BtShared *pBt = p->pBt;
-  int rc = SQLITE_OK;
-  u8 av = (u8)autoVacuum;
-
-  tdsqlite3BtreeEnter(p);
-  if( (pBt->btsFlags & BTS_PAGESIZE_FIXED)!=0 && (av ?1:0)!=pBt->autoVacuum ){
-    rc = SQLITE_READONLY;
-  }else{
-    pBt->autoVacuum = av ?1:0;
-    pBt->incrVacuum = av==2 ?1:0;
-  }
-  tdsqlite3BtreeLeave(p);
-  return rc;
-#endif
-}
-
-/*
-** Return the value of the 'auto-vacuum' property. If auto-vacuum is 
-** enabled 1 is returned. Otherwise 0.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeGetAutoVacuum(Btree *p){
-#ifdef SQLITE_OMIT_AUTOVACUUM
-  return BTREE_AUTOVACUUM_NONE;
-#else
-  int rc;
-  tdsqlite3BtreeEnter(p);
-  rc = (
-    (!p->pBt->autoVacuum)?BTREE_AUTOVACUUM_NONE:
-    (!p->pBt->incrVacuum)?BTREE_AUTOVACUUM_FULL:
-    BTREE_AUTOVACUUM_INCR
-  );
-  tdsqlite3BtreeLeave(p);
-  return rc;
-#endif
-}
-
-/*
-** If the user has not set the safety-level for this database connection
-** using "PRAGMA synchronous", and if the safety-level is not already
-** set to the value passed to this function as the second parameter,
-** set it so.
-*/
-#if SQLITE_DEFAULT_SYNCHRONOUS!=SQLITE_DEFAULT_WAL_SYNCHRONOUS \
-    && !defined(SQLITE_OMIT_WAL)
-static void setDefaultSyncFlag(BtShared *pBt, u8 safety_level){
-  tdsqlite3 *db;
-  Db *pDb;
-  if( (db=pBt->db)!=0 && (pDb=db->aDb)!=0 ){
-    while( pDb->pBt==0 || pDb->pBt->pBt!=pBt ){ pDb++; }
-    if( pDb->bSyncSet==0 
-     && pDb->safety_level!=safety_level 
-     && pDb!=&db->aDb[1] 
-    ){
-      pDb->safety_level = safety_level;
-      tdsqlite3PagerSetFlags(pBt->pPager,
-          pDb->safety_level | (db->flags & PAGER_FLAGS_MASK));
-    }
-  }
-}
-#else
-# define setDefaultSyncFlag(pBt,safety_level)
-#endif
-
-/* Forward declaration */
-static int newDatabase(BtShared*);
-
-
-/*
-** Get a reference to pPage1 of the database file.  This will
-** also acquire a readlock on that file.
-**
-** SQLITE_OK is returned on success.  If the file is not a
-** well-formed database file, then SQLITE_CORRUPT is returned.
-** SQLITE_BUSY is returned if the database is locked.  SQLITE_NOMEM
-** is returned if we run out of memory. 
-*/
-static int lockBtree(BtShared *pBt){
-  int rc;              /* Result code from subfunctions */
-  MemPage *pPage1;     /* Page 1 of the database file */
-  u32 nPage;           /* Number of pages in the database */
-  u32 nPageFile = 0;   /* Number of pages in the database file */
-  u32 nPageHeader;     /* Number of pages in the database according to hdr */
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( pBt->pPage1==0 );
-  rc = tdsqlite3PagerSharedLock(pBt->pPager);
-  if( rc!=SQLITE_OK ) return rc;
-  rc = btreeGetPage(pBt, 1, &pPage1, 0);
-  if( rc!=SQLITE_OK ) return rc;
-
-  /* Do some checking to help insure the file we opened really is
-  ** a valid database file. 
-  */
-  nPage = nPageHeader = get4byte(28+(u8*)pPage1->aData);
-  tdsqlite3PagerPagecount(pBt->pPager, (int*)&nPageFile);
-  if( nPage==0 || memcmp(24+(u8*)pPage1->aData, 92+(u8*)pPage1->aData,4)!=0 ){
-    nPage = nPageFile;
-  }
-  if( (pBt->db->flags & SQLITE_ResetDatabase)!=0 ){
-    nPage = 0;
-  }
-  if( nPage>0 ){
-    u32 pageSize;
-    u32 usableSize;
-    u8 *page1 = pPage1->aData;
-    rc = SQLITE_NOTADB;
-    /* EVIDENCE-OF: R-43737-39999 Every valid SQLite database file begins
-    ** with the following 16 bytes (in hex): 53 51 4c 69 74 65 20 66 6f 72 6d
-    ** 61 74 20 33 00. */
-    if( memcmp(page1, zMagicHeader, 16)!=0 ){
-      goto page1_init_failed;
-    }
-
-#ifdef SQLITE_OMIT_WAL
-    if( page1[18]>1 ){
-      pBt->btsFlags |= BTS_READ_ONLY;
-    }
-    if( page1[19]>1 ){
-      goto page1_init_failed;
-    }
-#else
-    if( page1[18]>2 ){
-      pBt->btsFlags |= BTS_READ_ONLY;
-    }
-    if( page1[19]>2 ){
-      goto page1_init_failed;
-    }
-
-    /* If the write version is set to 2, this database should be accessed
-    ** in WAL mode. If the log is not already open, open it now. Then 
-    ** return SQLITE_OK and return without populating BtShared.pPage1.
-    ** The caller detects this and calls this function again. This is
-    ** required as the version of page 1 currently in the page1 buffer
-    ** may not be the latest version - there may be a newer one in the log
-    ** file.
-    */
-    if( page1[19]==2 && (pBt->btsFlags & BTS_NO_WAL)==0 ){
-      int isOpen = 0;
-      rc = tdsqlite3PagerOpenWal(pBt->pPager, &isOpen);
-      if( rc!=SQLITE_OK ){
-        goto page1_init_failed;
-      }else{
-        setDefaultSyncFlag(pBt, SQLITE_DEFAULT_WAL_SYNCHRONOUS+1);
-        if( isOpen==0 ){
-          releasePageOne(pPage1);
-          return SQLITE_OK;
-        }
-      }
-      rc = SQLITE_NOTADB;
-    }else{
-      setDefaultSyncFlag(pBt, SQLITE_DEFAULT_SYNCHRONOUS+1);
-    }
-#endif
-
-    /* EVIDENCE-OF: R-15465-20813 The maximum and minimum embedded payload
-    ** fractions and the leaf payload fraction values must be 64, 32, and 32.
-    **
-    ** The original design allowed these amounts to vary, but as of
-    ** version 3.6.0, we require them to be fixed.
-    */
-    if( memcmp(&page1[21], "\100\040\040",3)!=0 ){
-      goto page1_init_failed;
-    }
-    /* EVIDENCE-OF: R-51873-39618 The page size for a database file is
-    ** determined by the 2-byte integer located at an offset of 16 bytes from
-    ** the beginning of the database file. */
-    pageSize = (page1[16]<<8) | (page1[17]<<16);
-    /* EVIDENCE-OF: R-25008-21688 The size of a page is a power of two
-    ** between 512 and 65536 inclusive. */
-    if( ((pageSize-1)&pageSize)!=0
-     || pageSize>SQLITE_MAX_PAGE_SIZE 
-     || pageSize<=256 
-    ){
-      goto page1_init_failed;
-    }
-    pBt->btsFlags |= BTS_PAGESIZE_FIXED;
-    assert( (pageSize & 7)==0 );
-    /* EVIDENCE-OF: R-59310-51205 The "reserved space" size in the 1-byte
-    ** integer at offset 20 is the number of bytes of space at the end of
-    ** each page to reserve for extensions. 
-    **
-    ** EVIDENCE-OF: R-37497-42412 The size of the reserved region is
-    ** determined by the one-byte unsigned integer found at an offset of 20
-    ** into the database file header. */
-    usableSize = pageSize - page1[20];
-    if( (u32)pageSize!=pBt->pageSize ){
-      /* After reading the first page of the database assuming a page size
-      ** of BtShared.pageSize, we have discovered that the page-size is
-      ** actually pageSize. Unlock the database, leave pBt->pPage1 at
-      ** zero and return SQLITE_OK. The caller will call this function
-      ** again with the correct page-size.
-      */
-      releasePageOne(pPage1);
-      pBt->usableSize = usableSize;
-      pBt->pageSize = pageSize;
-      freeTempSpace(pBt);
-      rc = tdsqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize,
-                                   pageSize-usableSize);
-      return rc;
-    }
-    if( tdsqlite3WritableSchema(pBt->db)==0 && nPage>nPageFile ){
-      rc = SQLITE_CORRUPT_BKPT;
-      goto page1_init_failed;
-    }
-    /* EVIDENCE-OF: R-28312-64704 However, the usable size is not allowed to
-    ** be less than 480. In other words, if the page size is 512, then the
-    ** reserved space size cannot exceed 32. */
-    if( usableSize<480 ){
-      goto page1_init_failed;
-    }
-    pBt->pageSize = pageSize;
-    pBt->usableSize = usableSize;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    pBt->autoVacuum = (get4byte(&page1[36 + 4*4])?1:0);
-    pBt->incrVacuum = (get4byte(&page1[36 + 7*4])?1:0);
-#endif
-  }
-
-  /* maxLocal is the maximum amount of payload to store locally for
-  ** a cell.  Make sure it is small enough so that at least minFanout
-  ** cells can will fit on one page.  We assume a 10-byte page header.
-  ** Besides the payload, the cell must store:
-  **     2-byte pointer to the cell
-  **     4-byte child pointer
-  **     9-byte nKey value
-  **     4-byte nData value
-  **     4-byte overflow page pointer
-  ** So a cell consists of a 2-byte pointer, a header which is as much as
-  ** 17 bytes long, 0 to N bytes of payload, and an optional 4 byte overflow
-  ** page pointer.
-  */
-  pBt->maxLocal = (u16)((pBt->usableSize-12)*64/255 - 23);
-  pBt->minLocal = (u16)((pBt->usableSize-12)*32/255 - 23);
-  pBt->maxLeaf = (u16)(pBt->usableSize - 35);
-  pBt->minLeaf = (u16)((pBt->usableSize-12)*32/255 - 23);
-  if( pBt->maxLocal>127 ){
-    pBt->max1bytePayload = 127;
-  }else{
-    pBt->max1bytePayload = (u8)pBt->maxLocal;
-  }
-  assert( pBt->maxLeaf + 23 <= MX_CELL_SIZE(pBt) );
-  pBt->pPage1 = pPage1;
-  pBt->nPage = nPage;
-  return SQLITE_OK;
-
-page1_init_failed:
-  releasePageOne(pPage1);
-  pBt->pPage1 = 0;
-  return rc;
-}
-
-#ifndef NDEBUG
-/*
-** Return the number of cursors open on pBt. This is for use
-** in assert() expressions, so it is only compiled if NDEBUG is not
-** defined.
-**
-** Only write cursors are counted if wrOnly is true.  If wrOnly is
-** false then all cursors are counted.
-**
-** For the purposes of this routine, a cursor is any cursor that
-** is capable of reading or writing to the database.  Cursors that
-** have been tripped into the CURSOR_FAULT state are not counted.
-*/
-static int countValidCursors(BtShared *pBt, int wrOnly){
-  BtCursor *pCur;
-  int r = 0;
-  for(pCur=pBt->pCursor; pCur; pCur=pCur->pNext){
-    if( (wrOnly==0 || (pCur->curFlags & BTCF_WriteFlag)!=0)
-     && pCur->eState!=CURSOR_FAULT ) r++; 
-  }
-  return r;
-}
-#endif
-
-/*
-** If there are no outstanding cursors and we are not in the middle
-** of a transaction but there is a read lock on the database, then
-** this routine unrefs the first page of the database file which 
-** has the effect of releasing the read lock.
-**
-** If there is a transaction in progress, this routine is a no-op.
-*/
-static void unlockBtreeIfUnused(BtShared *pBt){
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( countValidCursors(pBt,0)==0 || pBt->inTransaction>TRANS_NONE );
-  if( pBt->inTransaction==TRANS_NONE && pBt->pPage1!=0 ){
-    MemPage *pPage1 = pBt->pPage1;
-    assert( pPage1->aData );
-    assert( tdsqlite3PagerRefcount(pBt->pPager)==1 );
-    pBt->pPage1 = 0;
-    releasePageOne(pPage1);
-  }
-}
-
-/*
-** If pBt points to an empty file then convert that empty file
-** into a new empty database by initializing the first page of
-** the database.
-*/
-static int newDatabase(BtShared *pBt){
-  MemPage *pP1;
-  unsigned char *data;
-  int rc;
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  if( pBt->nPage>0 ){
-    return SQLITE_OK;
-  }
-  pP1 = pBt->pPage1;
-  assert( pP1!=0 );
-  data = pP1->aData;
-  rc = tdsqlite3PagerWrite(pP1->pDbPage);
-  if( rc ) return rc;
-  memcpy(data, zMagicHeader, sizeof(zMagicHeader));
-  assert( sizeof(zMagicHeader)==16 );
-  data[16] = (u8)((pBt->pageSize>>8)&0xff);
-  data[17] = (u8)((pBt->pageSize>>16)&0xff);
-  data[18] = 1;
-  data[19] = 1;
-  assert( pBt->usableSize<=pBt->pageSize && pBt->usableSize+255>=pBt->pageSize);
-  data[20] = (u8)(pBt->pageSize - pBt->usableSize);
-  data[21] = 64;
-  data[22] = 32;
-  data[23] = 32;
-  memset(&data[24], 0, 100-24);
-  zeroPage(pP1, PTF_INTKEY|PTF_LEAF|PTF_LEAFDATA );
-  pBt->btsFlags |= BTS_PAGESIZE_FIXED;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  assert( pBt->autoVacuum==1 || pBt->autoVacuum==0 );
-  assert( pBt->incrVacuum==1 || pBt->incrVacuum==0 );
-  put4byte(&data[36 + 4*4], pBt->autoVacuum);
-  put4byte(&data[36 + 7*4], pBt->incrVacuum);
-#endif
-  pBt->nPage = 1;
-  data[31] = 1;
-  return SQLITE_OK;
-}
-
-/*
-** Initialize the first page of the database file (creating a database
-** consisting of a single page and no schema objects). Return SQLITE_OK
-** if successful, or an SQLite error code otherwise.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeNewDb(Btree *p){
-  int rc;
-  tdsqlite3BtreeEnter(p);
-  p->pBt->nPage = 0;
-  rc = newDatabase(p->pBt);
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-/*
-** Attempt to start a new transaction. A write-transaction
-** is started if the second argument is nonzero, otherwise a read-
-** transaction.  If the second argument is 2 or more and exclusive
-** transaction is started, meaning that no other process is allowed
-** to access the database.  A preexisting transaction may not be
-** upgraded to exclusive by calling this routine a second time - the
-** exclusivity flag only works for a new transaction.
-**
-** A write-transaction must be started before attempting any 
-** changes to the database.  None of the following routines 
-** will work unless a transaction is started first:
-**
-**      tdsqlite3BtreeCreateTable()
-**      tdsqlite3BtreeCreateIndex()
-**      tdsqlite3BtreeClearTable()
-**      tdsqlite3BtreeDropTable()
-**      tdsqlite3BtreeInsert()
-**      tdsqlite3BtreeDelete()
-**      tdsqlite3BtreeUpdateMeta()
-**
-** If an initial attempt to acquire the lock fails because of lock contention
-** and the database was previously unlocked, then invoke the busy handler
-** if there is one.  But if there was previously a read-lock, do not
-** invoke the busy handler - just return SQLITE_BUSY.  SQLITE_BUSY is 
-** returned when there is already a read-lock in order to avoid a deadlock.
-**
-** Suppose there are two processes A and B.  A has a read lock and B has
-** a reserved lock.  B tries to promote to exclusive but is blocked because
-** of A's read lock.  A tries to promote to reserved but is blocked by B.
-** One or the other of the two processes must give way or there can be
-** no progress.  By returning SQLITE_BUSY and not invoking the busy callback
-** when A already has a read lock, we encourage A to give up and let B
-** proceed.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeBeginTrans(Btree *p, int wrflag, int *pSchemaVersion){
-  BtShared *pBt = p->pBt;
-  int rc = SQLITE_OK;
-
-  tdsqlite3BtreeEnter(p);
-  btreeIntegrity(p);
-
-  /* If the btree is already in a write-transaction, or it
-  ** is already in a read-transaction and a read-transaction
-  ** is requested, this is a no-op.
-  */
-  if( p->inTrans==TRANS_WRITE || (p->inTrans==TRANS_READ && !wrflag) ){
-    goto trans_begun;
-  }
-  assert( pBt->inTransaction==TRANS_WRITE || IfNotOmitAV(pBt->bDoTruncate)==0 );
-
-  if( (p->db->flags & SQLITE_ResetDatabase) 
-   && tdsqlite3PagerIsreadonly(pBt->pPager)==0 
-  ){
-    pBt->btsFlags &= ~BTS_READ_ONLY;
-  }
-
-  /* Write transactions are not possible on a read-only database */
-  if( (pBt->btsFlags & BTS_READ_ONLY)!=0 && wrflag ){
-    rc = SQLITE_READONLY;
-    goto trans_begun;
-  }
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-  {
-    tdsqlite3 *pBlock = 0;
-    /* If another database handle has already opened a write transaction 
-    ** on this shared-btree structure and a second write transaction is
-    ** requested, return SQLITE_LOCKED.
-    */
-    if( (wrflag && pBt->inTransaction==TRANS_WRITE)
-     || (pBt->btsFlags & BTS_PENDING)!=0
-    ){
-      pBlock = pBt->pWriter->db;
-    }else if( wrflag>1 ){
-      BtLock *pIter;
-      for(pIter=pBt->pLock; pIter; pIter=pIter->pNext){
-        if( pIter->pBtree!=p ){
-          pBlock = pIter->pBtree->db;
-          break;
-        }
-      }
-    }
-    if( pBlock ){
-      tdsqlite3ConnectionBlocked(p->db, pBlock);
-      rc = SQLITE_LOCKED_SHAREDCACHE;
-      goto trans_begun;
-    }
-  }
-#endif
-
-  /* Any read-only or read-write transaction implies a read-lock on 
-  ** page 1. So if some other shared-cache client already has a write-lock 
-  ** on page 1, the transaction cannot be opened. */
-  rc = querySharedCacheTableLock(p, MASTER_ROOT, READ_LOCK);
-  if( SQLITE_OK!=rc ) goto trans_begun;
-
-  pBt->btsFlags &= ~BTS_INITIALLY_EMPTY;
-  if( pBt->nPage==0 ) pBt->btsFlags |= BTS_INITIALLY_EMPTY;
-  do {
-    /* Call lockBtree() until either pBt->pPage1 is populated or
-    ** lockBtree() returns something other than SQLITE_OK. lockBtree()
-    ** may return SQLITE_OK but leave pBt->pPage1 set to 0 if after
-    ** reading page 1 it discovers that the page-size of the database 
-    ** file is not pBt->pageSize. In this case lockBtree() will update
-    ** pBt->pageSize to the page-size of the file on disk.
-    */
-    while( pBt->pPage1==0 && SQLITE_OK==(rc = lockBtree(pBt)) );
-
-    if( rc==SQLITE_OK && wrflag ){
-      if( (pBt->btsFlags & BTS_READ_ONLY)!=0 ){
-        rc = SQLITE_READONLY;
-      }else{
-        rc = tdsqlite3PagerBegin(pBt->pPager,wrflag>1,tdsqlite3TempInMemory(p->db));
-        if( rc==SQLITE_OK ){
-          rc = newDatabase(pBt);
-        }else if( rc==SQLITE_BUSY_SNAPSHOT && pBt->inTransaction==TRANS_NONE ){
-          /* if there was no transaction opened when this function was
-          ** called and SQLITE_BUSY_SNAPSHOT is returned, change the error
-          ** code to SQLITE_BUSY. */
-          rc = SQLITE_BUSY;
-        }
-      }
-    }
-  
-    if( rc!=SQLITE_OK ){
-      unlockBtreeIfUnused(pBt);
-    }
-  }while( (rc&0xFF)==SQLITE_BUSY && pBt->inTransaction==TRANS_NONE &&
-          btreeInvokeBusyHandler(pBt) );
-  tdsqlite3PagerResetLockTimeout(pBt->pPager);
-
-  if( rc==SQLITE_OK ){
-    if( p->inTrans==TRANS_NONE ){
-      pBt->nTransaction++;
-#ifndef SQLITE_OMIT_SHARED_CACHE
-      if( p->sharable ){
-        assert( p->lock.pBtree==p && p->lock.iTable==1 );
-        p->lock.eLock = READ_LOCK;
-        p->lock.pNext = pBt->pLock;
-        pBt->pLock = &p->lock;
-      }
-#endif
-    }
-    p->inTrans = (wrflag?TRANS_WRITE:TRANS_READ);
-    if( p->inTrans>pBt->inTransaction ){
-      pBt->inTransaction = p->inTrans;
-    }
-    if( wrflag ){
-      MemPage *pPage1 = pBt->pPage1;
-#ifndef SQLITE_OMIT_SHARED_CACHE
-      assert( !pBt->pWriter );
-      pBt->pWriter = p;
-      pBt->btsFlags &= ~BTS_EXCLUSIVE;
-      if( wrflag>1 ) pBt->btsFlags |= BTS_EXCLUSIVE;
-#endif
-
-      /* If the db-size header field is incorrect (as it may be if an old
-      ** client has been writing the database file), update it now. Doing
-      ** this sooner rather than later means the database size can safely 
-      ** re-read the database size from page 1 if a savepoint or transaction
-      ** rollback occurs within the transaction.
-      */
-      if( pBt->nPage!=get4byte(&pPage1->aData[28]) ){
-        rc = tdsqlite3PagerWrite(pPage1->pDbPage);
-        if( rc==SQLITE_OK ){
-          put4byte(&pPage1->aData[28], pBt->nPage);
-        }
-      }
-    }
-  }
-
-trans_begun:
-  if( rc==SQLITE_OK ){
-    if( pSchemaVersion ){
-      *pSchemaVersion = get4byte(&pBt->pPage1->aData[40]);
-    }
-    if( wrflag ){
-      /* This call makes sure that the pager has the correct number of
-      ** open savepoints. If the second parameter is greater than 0 and
-      ** the sub-journal is not already open, then it will be opened here.
-      */
-      rc = tdsqlite3PagerOpenSavepoint(pBt->pPager, p->db->nSavepoint);
-    }
-  }
-
-  btreeIntegrity(p);
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-
-/*
-** Set the pointer-map entries for all children of page pPage. Also, if
-** pPage contains cells that point to overflow pages, set the pointer
-** map entries for the overflow pages as well.
-*/
-static int setChildPtrmaps(MemPage *pPage){
-  int i;                             /* Counter variable */
-  int nCell;                         /* Number of cells in page pPage */
-  int rc;                            /* Return code */
-  BtShared *pBt = pPage->pBt;
-  Pgno pgno = pPage->pgno;
-
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  rc = pPage->isInit ? SQLITE_OK : btreeInitPage(pPage);
-  if( rc!=SQLITE_OK ) return rc;
-  nCell = pPage->nCell;
-
-  for(i=0; i<nCell; i++){
-    u8 *pCell = findCell(pPage, i);
-
-    ptrmapPutOvflPtr(pPage, pPage, pCell, &rc);
-
-    if( !pPage->leaf ){
-      Pgno childPgno = get4byte(pCell);
-      ptrmapPut(pBt, childPgno, PTRMAP_BTREE, pgno, &rc);
-    }
-  }
-
-  if( !pPage->leaf ){
-    Pgno childPgno = get4byte(&pPage->aData[pPage->hdrOffset+8]);
-    ptrmapPut(pBt, childPgno, PTRMAP_BTREE, pgno, &rc);
-  }
-
-  return rc;
-}
-
-/*
-** Somewhere on pPage is a pointer to page iFrom.  Modify this pointer so
-** that it points to iTo. Parameter eType describes the type of pointer to
-** be modified, as  follows:
-**
-** PTRMAP_BTREE:     pPage is a btree-page. The pointer points at a child 
-**                   page of pPage.
-**
-** PTRMAP_OVERFLOW1: pPage is a btree-page. The pointer points at an overflow
-**                   page pointed to by one of the cells on pPage.
-**
-** PTRMAP_OVERFLOW2: pPage is an overflow-page. The pointer points at the next
-**                   overflow page in the list.
-*/
-static int modifyPagePointer(MemPage *pPage, Pgno iFrom, Pgno iTo, u8 eType){
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( tdsqlite3PagerIswriteable(pPage->pDbPage) );
-  if( eType==PTRMAP_OVERFLOW2 ){
-    /* The pointer is always the first 4 bytes of the page in this case.  */
-    if( get4byte(pPage->aData)!=iFrom ){
-      return SQLITE_CORRUPT_PAGE(pPage);
-    }
-    put4byte(pPage->aData, iTo);
-  }else{
-    int i;
-    int nCell;
-    int rc;
-
-    rc = pPage->isInit ? SQLITE_OK : btreeInitPage(pPage);
-    if( rc ) return rc;
-    nCell = pPage->nCell;
-
-    for(i=0; i<nCell; i++){
-      u8 *pCell = findCell(pPage, i);
-      if( eType==PTRMAP_OVERFLOW1 ){
-        CellInfo info;
-        pPage->xParseCell(pPage, pCell, &info);
-        if( info.nLocal<info.nPayload ){
-          if( pCell+info.nSize > pPage->aData+pPage->pBt->usableSize ){
-            return SQLITE_CORRUPT_PAGE(pPage);
-          }
-          if( iFrom==get4byte(pCell+info.nSize-4) ){
-            put4byte(pCell+info.nSize-4, iTo);
-            break;
-          }
-        }
-      }else{
-        if( get4byte(pCell)==iFrom ){
-          put4byte(pCell, iTo);
-          break;
-        }
-      }
-    }
-  
-    if( i==nCell ){
-      if( eType!=PTRMAP_BTREE || 
-          get4byte(&pPage->aData[pPage->hdrOffset+8])!=iFrom ){
-        return SQLITE_CORRUPT_PAGE(pPage);
-      }
-      put4byte(&pPage->aData[pPage->hdrOffset+8], iTo);
-    }
-  }
-  return SQLITE_OK;
-}
-
-
-/*
-** Move the open database page pDbPage to location iFreePage in the 
-** database. The pDbPage reference remains valid.
-**
-** The isCommit flag indicates that there is no need to remember that
-** the journal needs to be sync()ed before database page pDbPage->pgno 
-** can be written to. The caller has already promised not to write to that
-** page.
-*/
-static int relocatePage(
-  BtShared *pBt,           /* Btree */
-  MemPage *pDbPage,        /* Open page to move */
-  u8 eType,                /* Pointer map 'type' entry for pDbPage */
-  Pgno iPtrPage,           /* Pointer map 'page-no' entry for pDbPage */
-  Pgno iFreePage,          /* The location to move pDbPage to */
-  int isCommit             /* isCommit flag passed to tdsqlite3PagerMovepage */
-){
-  MemPage *pPtrPage;   /* The page that contains a pointer to pDbPage */
-  Pgno iDbPage = pDbPage->pgno;
-  Pager *pPager = pBt->pPager;
-  int rc;
-
-  assert( eType==PTRMAP_OVERFLOW2 || eType==PTRMAP_OVERFLOW1 || 
-      eType==PTRMAP_BTREE || eType==PTRMAP_ROOTPAGE );
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( pDbPage->pBt==pBt );
-  if( iDbPage<3 ) return SQLITE_CORRUPT_BKPT;
-
-  /* Move page iDbPage from its current location to page number iFreePage */
-  TRACE(("AUTOVACUUM: Moving %d to free page %d (ptr page %d type %d)\n", 
-      iDbPage, iFreePage, iPtrPage, eType));
-  rc = tdsqlite3PagerMovepage(pPager, pDbPage->pDbPage, iFreePage, isCommit);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-  pDbPage->pgno = iFreePage;
-
-  /* If pDbPage was a btree-page, then it may have child pages and/or cells
-  ** that point to overflow pages. The pointer map entries for all these
-  ** pages need to be changed.
-  **
-  ** If pDbPage is an overflow page, then the first 4 bytes may store a
-  ** pointer to a subsequent overflow page. If this is the case, then
-  ** the pointer map needs to be updated for the subsequent overflow page.
-  */
-  if( eType==PTRMAP_BTREE || eType==PTRMAP_ROOTPAGE ){
-    rc = setChildPtrmaps(pDbPage);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-  }else{
-    Pgno nextOvfl = get4byte(pDbPage->aData);
-    if( nextOvfl!=0 ){
-      ptrmapPut(pBt, nextOvfl, PTRMAP_OVERFLOW2, iFreePage, &rc);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-    }
-  }
-
-  /* Fix the database pointer on page iPtrPage that pointed at iDbPage so
-  ** that it points at iFreePage. Also fix the pointer map entry for
-  ** iPtrPage.
-  */
-  if( eType!=PTRMAP_ROOTPAGE ){
-    rc = btreeGetPage(pBt, iPtrPage, &pPtrPage, 0);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    rc = tdsqlite3PagerWrite(pPtrPage->pDbPage);
-    if( rc!=SQLITE_OK ){
-      releasePage(pPtrPage);
-      return rc;
-    }
-    rc = modifyPagePointer(pPtrPage, iDbPage, iFreePage, eType);
-    releasePage(pPtrPage);
-    if( rc==SQLITE_OK ){
-      ptrmapPut(pBt, iFreePage, eType, iPtrPage, &rc);
-    }
-  }
-  return rc;
-}
-
-/* Forward declaration required by incrVacuumStep(). */
-static int allocateBtreePage(BtShared *, MemPage **, Pgno *, Pgno, u8);
-
-/*
-** Perform a single step of an incremental-vacuum. If successful, return
-** SQLITE_OK. If there is no work to do (and therefore no point in 
-** calling this function again), return SQLITE_DONE. Or, if an error 
-** occurs, return some other error code.
-**
-** More specifically, this function attempts to re-organize the database so 
-** that the last page of the file currently in use is no longer in use.
-**
-** Parameter nFin is the number of pages that this database would contain
-** were this function called until it returns SQLITE_DONE.
-**
-** If the bCommit parameter is non-zero, this function assumes that the 
-** caller will keep calling incrVacuumStep() until it returns SQLITE_DONE 
-** or an error. bCommit is passed true for an auto-vacuum-on-commit 
-** operation, or false for an incremental vacuum.
-*/
-static int incrVacuumStep(BtShared *pBt, Pgno nFin, Pgno iLastPg, int bCommit){
-  Pgno nFreeList;           /* Number of pages still on the free-list */
-  int rc;
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( iLastPg>nFin );
-
-  if( !PTRMAP_ISPAGE(pBt, iLastPg) && iLastPg!=PENDING_BYTE_PAGE(pBt) ){
-    u8 eType;
-    Pgno iPtrPage;
-
-    nFreeList = get4byte(&pBt->pPage1->aData[36]);
-    if( nFreeList==0 ){
-      return SQLITE_DONE;
-    }
-
-    rc = ptrmapGet(pBt, iLastPg, &eType, &iPtrPage);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    if( eType==PTRMAP_ROOTPAGE ){
-      return SQLITE_CORRUPT_BKPT;
-    }
-
-    if( eType==PTRMAP_FREEPAGE ){
-      if( bCommit==0 ){
-        /* Remove the page from the files free-list. This is not required
-        ** if bCommit is non-zero. In that case, the free-list will be
-        ** truncated to zero after this function returns, so it doesn't 
-        ** matter if it still contains some garbage entries.
-        */
-        Pgno iFreePg;
-        MemPage *pFreePg;
-        rc = allocateBtreePage(pBt, &pFreePg, &iFreePg, iLastPg, BTALLOC_EXACT);
-        if( rc!=SQLITE_OK ){
-          return rc;
-        }
-        assert( iFreePg==iLastPg );
-        releasePage(pFreePg);
-      }
-    } else {
-      Pgno iFreePg;             /* Index of free page to move pLastPg to */
-      MemPage *pLastPg;
-      u8 eMode = BTALLOC_ANY;   /* Mode parameter for allocateBtreePage() */
-      Pgno iNear = 0;           /* nearby parameter for allocateBtreePage() */
-
-      rc = btreeGetPage(pBt, iLastPg, &pLastPg, 0);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-
-      /* If bCommit is zero, this loop runs exactly once and page pLastPg
-      ** is swapped with the first free page pulled off the free list.
-      **
-      ** On the other hand, if bCommit is greater than zero, then keep
-      ** looping until a free-page located within the first nFin pages
-      ** of the file is found.
-      */
-      if( bCommit==0 ){
-        eMode = BTALLOC_LE;
-        iNear = nFin;
-      }
-      do {
-        MemPage *pFreePg;
-        rc = allocateBtreePage(pBt, &pFreePg, &iFreePg, iNear, eMode);
-        if( rc!=SQLITE_OK ){
-          releasePage(pLastPg);
-          return rc;
-        }
-        releasePage(pFreePg);
-      }while( bCommit && iFreePg>nFin );
-      assert( iFreePg<iLastPg );
-      
-      rc = relocatePage(pBt, pLastPg, eType, iPtrPage, iFreePg, bCommit);
-      releasePage(pLastPg);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-    }
-  }
-
-  if( bCommit==0 ){
-    do {
-      iLastPg--;
-    }while( iLastPg==PENDING_BYTE_PAGE(pBt) || PTRMAP_ISPAGE(pBt, iLastPg) );
-    pBt->bDoTruncate = 1;
-    pBt->nPage = iLastPg;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** The database opened by the first argument is an auto-vacuum database
-** nOrig pages in size containing nFree free pages. Return the expected 
-** size of the database in pages following an auto-vacuum operation.
-*/
-static Pgno finalDbSize(BtShared *pBt, Pgno nOrig, Pgno nFree){
-  int nEntry;                     /* Number of entries on one ptrmap page */
-  Pgno nPtrmap;                   /* Number of PtrMap pages to be freed */
-  Pgno nFin;                      /* Return value */
-
-  nEntry = pBt->usableSize/5;
-  nPtrmap = (nFree-nOrig+PTRMAP_PAGENO(pBt, nOrig)+nEntry)/nEntry;
-  nFin = nOrig - nFree - nPtrmap;
-  if( nOrig>PENDING_BYTE_PAGE(pBt) && nFin<PENDING_BYTE_PAGE(pBt) ){
-    nFin--;
-  }
-  while( PTRMAP_ISPAGE(pBt, nFin) || nFin==PENDING_BYTE_PAGE(pBt) ){
-    nFin--;
-  }
-
-  return nFin;
-}
-
-/*
-** A write-transaction must be opened before calling this function.
-** It performs a single unit of work towards an incremental vacuum.
-**
-** If the incremental vacuum is finished after this function has run,
-** SQLITE_DONE is returned. If it is not finished, but no error occurred,
-** SQLITE_OK is returned. Otherwise an SQLite error code. 
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeIncrVacuum(Btree *p){
-  int rc;
-  BtShared *pBt = p->pBt;
-
-  tdsqlite3BtreeEnter(p);
-  assert( pBt->inTransaction==TRANS_WRITE && p->inTrans==TRANS_WRITE );
-  if( !pBt->autoVacuum ){
-    rc = SQLITE_DONE;
-  }else{
-    Pgno nOrig = btreePagecount(pBt);
-    Pgno nFree = get4byte(&pBt->pPage1->aData[36]);
-    Pgno nFin = finalDbSize(pBt, nOrig, nFree);
-
-    if( nOrig<nFin ){
-      rc = SQLITE_CORRUPT_BKPT;
-    }else if( nFree>0 ){
-      rc = saveAllCursors(pBt, 0, 0);
-      if( rc==SQLITE_OK ){
-        invalidateAllOverflowCache(pBt);
-        rc = incrVacuumStep(pBt, nFin, nOrig, 0);
-      }
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3PagerWrite(pBt->pPage1->pDbPage);
-        put4byte(&pBt->pPage1->aData[28], pBt->nPage);
-      }
-    }else{
-      rc = SQLITE_DONE;
-    }
-  }
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-/*
-** This routine is called prior to tdsqlite3PagerCommit when a transaction
-** is committed for an auto-vacuum database.
-**
-** If SQLITE_OK is returned, then *pnTrunc is set to the number of pages
-** the database file should be truncated to during the commit process. 
-** i.e. the database has been reorganized so that only the first *pnTrunc
-** pages are in use.
-*/
-static int autoVacuumCommit(BtShared *pBt){
-  int rc = SQLITE_OK;
-  Pager *pPager = pBt->pPager;
-  VVA_ONLY( int nRef = tdsqlite3PagerRefcount(pPager); )
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  invalidateAllOverflowCache(pBt);
-  assert(pBt->autoVacuum);
-  if( !pBt->incrVacuum ){
-    Pgno nFin;         /* Number of pages in database after autovacuuming */
-    Pgno nFree;        /* Number of pages on the freelist initially */
-    Pgno iFree;        /* The next page to be freed */
-    Pgno nOrig;        /* Database size before freeing */
-
-    nOrig = btreePagecount(pBt);
-    if( PTRMAP_ISPAGE(pBt, nOrig) || nOrig==PENDING_BYTE_PAGE(pBt) ){
-      /* It is not possible to create a database for which the final page
-      ** is either a pointer-map page or the pending-byte page. If one
-      ** is encountered, this indicates corruption.
-      */
-      return SQLITE_CORRUPT_BKPT;
-    }
-
-    nFree = get4byte(&pBt->pPage1->aData[36]);
-    nFin = finalDbSize(pBt, nOrig, nFree);
-    if( nFin>nOrig ) return SQLITE_CORRUPT_BKPT;
-    if( nFin<nOrig ){
-      rc = saveAllCursors(pBt, 0, 0);
-    }
-    for(iFree=nOrig; iFree>nFin && rc==SQLITE_OK; iFree--){
-      rc = incrVacuumStep(pBt, nFin, iFree, 1);
-    }
-    if( (rc==SQLITE_DONE || rc==SQLITE_OK) && nFree>0 ){
-      rc = tdsqlite3PagerWrite(pBt->pPage1->pDbPage);
-      put4byte(&pBt->pPage1->aData[32], 0);
-      put4byte(&pBt->pPage1->aData[36], 0);
-      put4byte(&pBt->pPage1->aData[28], nFin);
-      pBt->bDoTruncate = 1;
-      pBt->nPage = nFin;
-    }
-    if( rc!=SQLITE_OK ){
-      tdsqlite3PagerRollback(pPager);
-    }
-  }
-
-  assert( nRef>=tdsqlite3PagerRefcount(pPager) );
-  return rc;
-}
-
-#else /* ifndef SQLITE_OMIT_AUTOVACUUM */
-# define setChildPtrmaps(x) SQLITE_OK
-#endif
-
-/*
-** This routine does the first phase of a two-phase commit.  This routine
-** causes a rollback journal to be created (if it does not already exist)
-** and populated with enough information so that if a power loss occurs
-** the database can be restored to its original state by playing back
-** the journal.  Then the contents of the journal are flushed out to
-** the disk.  After the journal is safely on oxide, the changes to the
-** database are written into the database file and flushed to oxide.
-** At the end of this call, the rollback journal still exists on the
-** disk and we are still holding all locks, so the transaction has not
-** committed.  See tdsqlite3BtreeCommitPhaseTwo() for the second phase of the
-** commit process.
-**
-** This call is a no-op if no write-transaction is currently active on pBt.
-**
-** Otherwise, sync the database file for the btree pBt. zMaster points to
-** the name of a master journal file that should be written into the
-** individual journal file, or is NULL, indicating no master journal file 
-** (single database transaction).
-**
-** When this is called, the master journal should already have been
-** created, populated with this journal pointer and synced to disk.
-**
-** Once this is routine has returned, the only thing required to commit
-** the write-transaction for this database file is to delete the journal.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCommitPhaseOne(Btree *p, const char *zMaster){
-  int rc = SQLITE_OK;
-  if( p->inTrans==TRANS_WRITE ){
-    BtShared *pBt = p->pBt;
-    tdsqlite3BtreeEnter(p);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( pBt->autoVacuum ){
-      rc = autoVacuumCommit(pBt);
-      if( rc!=SQLITE_OK ){
-        tdsqlite3BtreeLeave(p);
-        return rc;
-      }
-    }
-    if( pBt->bDoTruncate ){
-      tdsqlite3PagerTruncateImage(pBt->pPager, pBt->nPage);
-    }
-#endif
-    rc = tdsqlite3PagerCommitPhaseOne(pBt->pPager, zMaster, 0);
-    tdsqlite3BtreeLeave(p);
-  }
-  return rc;
-}
-
-/*
-** This function is called from both BtreeCommitPhaseTwo() and BtreeRollback()
-** at the conclusion of a transaction.
-*/
-static void btreeEndTransaction(Btree *p){
-  BtShared *pBt = p->pBt;
-  tdsqlite3 *db = p->db;
-  assert( tdsqlite3BtreeHoldsMutex(p) );
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  pBt->bDoTruncate = 0;
-#endif
-  if( p->inTrans>TRANS_NONE && db->nVdbeRead>1 ){
-    /* If there are other active statements that belong to this database
-    ** handle, downgrade to a read-only transaction. The other statements
-    ** may still be reading from the database.  */
-    downgradeAllSharedCacheTableLocks(p);
-    p->inTrans = TRANS_READ;
-  }else{
-    /* If the handle had any kind of transaction open, decrement the 
-    ** transaction count of the shared btree. If the transaction count 
-    ** reaches 0, set the shared state to TRANS_NONE. The unlockBtreeIfUnused()
-    ** call below will unlock the pager.  */
-    if( p->inTrans!=TRANS_NONE ){
-      clearAllSharedCacheTableLocks(p);
-      pBt->nTransaction--;
-      if( 0==pBt->nTransaction ){
-        pBt->inTransaction = TRANS_NONE;
-      }
-    }
-
-    /* Set the current transaction state to TRANS_NONE and unlock the 
-    ** pager if this call closed the only read or write transaction.  */
-    p->inTrans = TRANS_NONE;
-    unlockBtreeIfUnused(pBt);
-  }
-
-  btreeIntegrity(p);
-}
-
-/*
-** Commit the transaction currently in progress.
-**
-** This routine implements the second phase of a 2-phase commit.  The
-** tdsqlite3BtreeCommitPhaseOne() routine does the first phase and should
-** be invoked prior to calling this routine.  The tdsqlite3BtreeCommitPhaseOne()
-** routine did all the work of writing information out to disk and flushing the
-** contents so that they are written onto the disk platter.  All this
-** routine has to do is delete or truncate or zero the header in the
-** the rollback journal (which causes the transaction to commit) and
-** drop locks.
-**
-** Normally, if an error occurs while the pager layer is attempting to 
-** finalize the underlying journal file, this function returns an error and
-** the upper layer will attempt a rollback. However, if the second argument
-** is non-zero then this b-tree transaction is part of a multi-file 
-** transaction. In this case, the transaction has already been committed 
-** (by deleting a master journal file) and the caller will ignore this 
-** functions return code. So, even if an error occurs in the pager layer,
-** reset the b-tree objects internal state to indicate that the write
-** transaction has been closed. This is quite safe, as the pager will have
-** transitioned to the error state.
-**
-** This will release the write lock on the database file.  If there
-** are no active cursors, it also releases the read lock.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCommitPhaseTwo(Btree *p, int bCleanup){
-
-  if( p->inTrans==TRANS_NONE ) return SQLITE_OK;
-  tdsqlite3BtreeEnter(p);
-  btreeIntegrity(p);
-
-  /* If the handle has a write-transaction open, commit the shared-btrees 
-  ** transaction and set the shared state to TRANS_READ.
-  */
-  if( p->inTrans==TRANS_WRITE ){
-    int rc;
-    BtShared *pBt = p->pBt;
-    assert( pBt->inTransaction==TRANS_WRITE );
-    assert( pBt->nTransaction>0 );
-    rc = tdsqlite3PagerCommitPhaseTwo(pBt->pPager);
-    if( rc!=SQLITE_OK && bCleanup==0 ){
-      tdsqlite3BtreeLeave(p);
-      return rc;
-    }
-    p->iDataVersion--;  /* Compensate for pPager->iDataVersion++; */
-    pBt->inTransaction = TRANS_READ;
-    btreeClearHasContent(pBt);
-  }
-
-  btreeEndTransaction(p);
-  tdsqlite3BtreeLeave(p);
-  return SQLITE_OK;
-}
-
-/*
-** Do both phases of a commit.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCommit(Btree *p){
-  int rc;
-  tdsqlite3BtreeEnter(p);
-  rc = tdsqlite3BtreeCommitPhaseOne(p, 0);
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3BtreeCommitPhaseTwo(p, 0);
-  }
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-/*
-** This routine sets the state to CURSOR_FAULT and the error
-** code to errCode for every cursor on any BtShared that pBtree
-** references.  Or if the writeOnly flag is set to 1, then only
-** trip write cursors and leave read cursors unchanged.
-**
-** Every cursor is a candidate to be tripped, including cursors
-** that belong to other database connections that happen to be
-** sharing the cache with pBtree.
-**
-** This routine gets called when a rollback occurs. If the writeOnly
-** flag is true, then only write-cursors need be tripped - read-only
-** cursors save their current positions so that they may continue 
-** following the rollback. Or, if writeOnly is false, all cursors are 
-** tripped. In general, writeOnly is false if the transaction being
-** rolled back modified the database schema. In this case b-tree root
-** pages may be moved or deleted from the database altogether, making
-** it unsafe for read cursors to continue.
-**
-** If the writeOnly flag is true and an error is encountered while 
-** saving the current position of a read-only cursor, all cursors, 
-** including all read-cursors are tripped.
-**
-** SQLITE_OK is returned if successful, or if an error occurs while
-** saving a cursor position, an SQLite error code.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeTripAllCursors(Btree *pBtree, int errCode, int writeOnly){
-  BtCursor *p;
-  int rc = SQLITE_OK;
-
-  assert( (writeOnly==0 || writeOnly==1) && BTCF_WriteFlag==1 );
-  if( pBtree ){
-    tdsqlite3BtreeEnter(pBtree);
-    for(p=pBtree->pBt->pCursor; p; p=p->pNext){
-      if( writeOnly && (p->curFlags & BTCF_WriteFlag)==0 ){
-        if( p->eState==CURSOR_VALID || p->eState==CURSOR_SKIPNEXT ){
-          rc = saveCursorPosition(p);
-          if( rc!=SQLITE_OK ){
-            (void)tdsqlite3BtreeTripAllCursors(pBtree, rc, 0);
-            break;
-          }
-        }
-      }else{
-        tdsqlite3BtreeClearCursor(p);
-        p->eState = CURSOR_FAULT;
-        p->skipNext = errCode;
-      }
-      btreeReleaseAllCursorPages(p);
-    }
-    tdsqlite3BtreeLeave(pBtree);
-  }
-  return rc;
-}
-
-/*
-** Set the pBt->nPage field correctly, according to the current
-** state of the database.  Assume pBt->pPage1 is valid.
-*/
-static void btreeSetNPage(BtShared *pBt, MemPage *pPage1){
-  int nPage = get4byte(&pPage1->aData[28]);
-  testcase( nPage==0 );
-  if( nPage==0 ) tdsqlite3PagerPagecount(pBt->pPager, &nPage);
-  testcase( pBt->nPage!=nPage );
-  pBt->nPage = nPage;
-}
-
-/*
-** Rollback the transaction in progress.
-**
-** If tripCode is not SQLITE_OK then cursors will be invalidated (tripped).
-** Only write cursors are tripped if writeOnly is true but all cursors are
-** tripped if writeOnly is false.  Any attempt to use
-** a tripped cursor will result in an error.
-**
-** This will release the write lock on the database file.  If there
-** are no active cursors, it also releases the read lock.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeRollback(Btree *p, int tripCode, int writeOnly){
-  int rc;
-  BtShared *pBt = p->pBt;
-  MemPage *pPage1;
-
-  assert( writeOnly==1 || writeOnly==0 );
-  assert( tripCode==SQLITE_ABORT_ROLLBACK || tripCode==SQLITE_OK );
-  tdsqlite3BtreeEnter(p);
-  if( tripCode==SQLITE_OK ){
-    rc = tripCode = saveAllCursors(pBt, 0, 0);
-    if( rc ) writeOnly = 0;
-  }else{
-    rc = SQLITE_OK;
-  }
-  if( tripCode ){
-    int rc2 = tdsqlite3BtreeTripAllCursors(p, tripCode, writeOnly);
-    assert( rc==SQLITE_OK || (writeOnly==0 && rc2==SQLITE_OK) );
-    if( rc2!=SQLITE_OK ) rc = rc2;
-  }
-  btreeIntegrity(p);
-
-  if( p->inTrans==TRANS_WRITE ){
-    int rc2;
-
-    assert( TRANS_WRITE==pBt->inTransaction );
-    rc2 = tdsqlite3PagerRollback(pBt->pPager);
-    if( rc2!=SQLITE_OK ){
-      rc = rc2;
-    }
-
-    /* The rollback may have destroyed the pPage1->aData value.  So
-    ** call btreeGetPage() on page 1 again to make
-    ** sure pPage1->aData is set correctly. */
-    if( btreeGetPage(pBt, 1, &pPage1, 0)==SQLITE_OK ){
-      btreeSetNPage(pBt, pPage1);
-      releasePageOne(pPage1);
-    }
-    assert( countValidCursors(pBt, 1)==0 );
-    pBt->inTransaction = TRANS_READ;
-    btreeClearHasContent(pBt);
-  }
-
-  btreeEndTransaction(p);
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-/*
-** Start a statement subtransaction. The subtransaction can be rolled
-** back independently of the main transaction. You must start a transaction 
-** before starting a subtransaction. The subtransaction is ended automatically 
-** if the main transaction commits or rolls back.
-**
-** Statement subtransactions are used around individual SQL statements
-** that are contained within a BEGIN...COMMIT block.  If a constraint
-** error occurs within the statement, the effect of that one statement
-** can be rolled back without having to rollback the entire transaction.
-**
-** A statement sub-transaction is implemented as an anonymous savepoint. The
-** value passed as the second parameter is the total number of savepoints,
-** including the new anonymous savepoint, open on the B-Tree. i.e. if there
-** are no active savepoints and no other statement-transactions open,
-** iStatement is 1. This anonymous savepoint can be released or rolled back
-** using the tdsqlite3BtreeSavepoint() function.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeBeginStmt(Btree *p, int iStatement){
-  int rc;
-  BtShared *pBt = p->pBt;
-  tdsqlite3BtreeEnter(p);
-  assert( p->inTrans==TRANS_WRITE );
-  assert( (pBt->btsFlags & BTS_READ_ONLY)==0 );
-  assert( iStatement>0 );
-  assert( iStatement>p->db->nSavepoint );
-  assert( pBt->inTransaction==TRANS_WRITE );
-  /* At the pager level, a statement transaction is a savepoint with
-  ** an index greater than all savepoints created explicitly using
-  ** SQL statements. It is illegal to open, release or rollback any
-  ** such savepoints while the statement transaction savepoint is active.
-  */
-  rc = tdsqlite3PagerOpenSavepoint(pBt->pPager, iStatement);
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-/*
-** The second argument to this function, op, is always SAVEPOINT_ROLLBACK
-** or SAVEPOINT_RELEASE. This function either releases or rolls back the
-** savepoint identified by parameter iSavepoint, depending on the value 
-** of op.
-**
-** Normally, iSavepoint is greater than or equal to zero. However, if op is
-** SAVEPOINT_ROLLBACK, then iSavepoint may also be -1. In this case the 
-** contents of the entire transaction are rolled back. This is different
-** from a normal transaction rollback, as no locks are released and the
-** transaction remains open.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSavepoint(Btree *p, int op, int iSavepoint){
-  int rc = SQLITE_OK;
-  if( p && p->inTrans==TRANS_WRITE ){
-    BtShared *pBt = p->pBt;
-    assert( op==SAVEPOINT_RELEASE || op==SAVEPOINT_ROLLBACK );
-    assert( iSavepoint>=0 || (iSavepoint==-1 && op==SAVEPOINT_ROLLBACK) );
-    tdsqlite3BtreeEnter(p);
-    if( op==SAVEPOINT_ROLLBACK ){
-      rc = saveAllCursors(pBt, 0, 0);
-    }
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3PagerSavepoint(pBt->pPager, op, iSavepoint);
-    }
-    if( rc==SQLITE_OK ){
-      if( iSavepoint<0 && (pBt->btsFlags & BTS_INITIALLY_EMPTY)!=0 ){
-        pBt->nPage = 0;
-      }
-      rc = newDatabase(pBt);
-      btreeSetNPage(pBt, pBt->pPage1);
-
-      /* pBt->nPage might be zero if the database was corrupt when 
-      ** the transaction was started. Otherwise, it must be at least 1.  */
-      assert( CORRUPT_DB || pBt->nPage>0 );
-    }
-    tdsqlite3BtreeLeave(p);
-  }
-  return rc;
-}
-
-/*
-** Create a new cursor for the BTree whose root is on the page
-** iTable. If a read-only cursor is requested, it is assumed that
-** the caller already has at least a read-only transaction open
-** on the database already. If a write-cursor is requested, then
-** the caller is assumed to have an open write transaction.
-**
-** If the BTREE_WRCSR bit of wrFlag is clear, then the cursor can only
-** be used for reading.  If the BTREE_WRCSR bit is set, then the cursor
-** can be used for reading or for writing if other conditions for writing
-** are also met.  These are the conditions that must be met in order
-** for writing to be allowed:
-**
-** 1:  The cursor must have been opened with wrFlag containing BTREE_WRCSR
-**
-** 2:  Other database connections that share the same pager cache
-**     but which are not in the READ_UNCOMMITTED state may not have
-**     cursors open with wrFlag==0 on the same table.  Otherwise
-**     the changes made by this write cursor would be visible to
-**     the read cursors in the other database connection.
-**
-** 3:  The database must be writable (not on read-only media)
-**
-** 4:  There must be an active transaction.
-**
-** The BTREE_FORDELETE bit of wrFlag may optionally be set if BTREE_WRCSR
-** is set.  If FORDELETE is set, that is a hint to the implementation that
-** this cursor will only be used to seek to and delete entries of an index
-** as part of a larger DELETE statement.  The FORDELETE hint is not used by
-** this implementation.  But in a hypothetical alternative storage engine 
-** in which index entries are automatically deleted when corresponding table
-** rows are deleted, the FORDELETE flag is a hint that all SEEK and DELETE
-** operations on this cursor can be no-ops and all READ operations can 
-** return a null row (2-bytes: 0x01 0x00).
-**
-** No checking is done to make sure that page iTable really is the
-** root page of a b-tree.  If it is not, then the cursor acquired
-** will not work correctly.
-**
-** It is assumed that the tdsqlite3BtreeCursorZero() has been called
-** on pCur to initialize the memory space prior to invoking this routine.
-*/
-static int btreeCursor(
-  Btree *p,                              /* The btree */
-  int iTable,                            /* Root page of table to open */
-  int wrFlag,                            /* 1 to write. 0 read-only */
-  struct KeyInfo *pKeyInfo,              /* First arg to comparison function */
-  BtCursor *pCur                         /* Space for new cursor */
-){
-  BtShared *pBt = p->pBt;                /* Shared b-tree handle */
-  BtCursor *pX;                          /* Looping over other all cursors */
-
-  assert( tdsqlite3BtreeHoldsMutex(p) );
-  assert( wrFlag==0 
-       || wrFlag==BTREE_WRCSR 
-       || wrFlag==(BTREE_WRCSR|BTREE_FORDELETE) 
-  );
-
-  /* The following assert statements verify that if this is a sharable 
-  ** b-tree database, the connection is holding the required table locks, 
-  ** and that no other connection has any open cursor that conflicts with 
-  ** this lock.  The iTable<1 term disables the check for corrupt schemas. */
-  assert( hasSharedCacheTableLock(p, iTable, pKeyInfo!=0, (wrFlag?2:1))
-          || iTable<1 );
-  assert( wrFlag==0 || !hasReadConflicts(p, iTable) );
-
-  /* Assert that the caller has opened the required transaction. */
-  assert( p->inTrans>TRANS_NONE );
-  assert( wrFlag==0 || p->inTrans==TRANS_WRITE );
-  assert( pBt->pPage1 && pBt->pPage1->aData );
-  assert( wrFlag==0 || (pBt->btsFlags & BTS_READ_ONLY)==0 );
-
-  if( wrFlag ){
-    allocateTempSpace(pBt);
-    if( pBt->pTmpSpace==0 ) return SQLITE_NOMEM_BKPT;
-  }
-  if( iTable<=1 ){
-    if( iTable<1 ){
-      return SQLITE_CORRUPT_BKPT;
-    }else if( btreePagecount(pBt)==0 ){
-      assert( wrFlag==0 );
-      iTable = 0;
-    }
-  }
-
-  /* Now that no other errors can occur, finish filling in the BtCursor
-  ** variables and link the cursor into the BtShared list.  */
-  pCur->pgnoRoot = (Pgno)iTable;
-  pCur->iPage = -1;
-  pCur->pKeyInfo = pKeyInfo;
-  pCur->pBtree = p;
-  pCur->pBt = pBt;
-  pCur->curFlags = wrFlag ? BTCF_WriteFlag : 0;
-  pCur->curPagerFlags = wrFlag ? 0 : PAGER_GET_READONLY;
-  /* If there are two or more cursors on the same btree, then all such
-  ** cursors *must* have the BTCF_Multiple flag set. */
-  for(pX=pBt->pCursor; pX; pX=pX->pNext){
-    if( pX->pgnoRoot==(Pgno)iTable ){
-      pX->curFlags |= BTCF_Multiple;
-      pCur->curFlags |= BTCF_Multiple;
-    }
-  }
-  pCur->pNext = pBt->pCursor;
-  pBt->pCursor = pCur;
-  pCur->eState = CURSOR_INVALID;
-  return SQLITE_OK;
-}
-static int btreeCursorWithLock(
-  Btree *p,                              /* The btree */
-  int iTable,                            /* Root page of table to open */
-  int wrFlag,                            /* 1 to write. 0 read-only */
-  struct KeyInfo *pKeyInfo,              /* First arg to comparison function */
-  BtCursor *pCur                         /* Space for new cursor */
-){
-  int rc;
-  tdsqlite3BtreeEnter(p);
-  rc = btreeCursor(p, iTable, wrFlag, pKeyInfo, pCur);
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-SQLITE_PRIVATE int tdsqlite3BtreeCursor(
-  Btree *p,                                   /* The btree */
-  int iTable,                                 /* Root page of table to open */
-  int wrFlag,                                 /* 1 to write. 0 read-only */
-  struct KeyInfo *pKeyInfo,                   /* First arg to xCompare() */
-  BtCursor *pCur                              /* Write new cursor here */
-){
-  if( p->sharable ){
-    return btreeCursorWithLock(p, iTable, wrFlag, pKeyInfo, pCur);
-  }else{
-    return btreeCursor(p, iTable, wrFlag, pKeyInfo, pCur);
-  }
-}
-
-/*
-** Return the size of a BtCursor object in bytes.
-**
-** This interfaces is needed so that users of cursors can preallocate
-** sufficient storage to hold a cursor.  The BtCursor object is opaque
-** to users so they cannot do the sizeof() themselves - they must call
-** this routine.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCursorSize(void){
-  return ROUND8(sizeof(BtCursor));
-}
-
-/*
-** Initialize memory that will be converted into a BtCursor object.
-**
-** The simple approach here would be to memset() the entire object
-** to zero.  But it turns out that the apPage[] and aiIdx[] arrays
-** do not need to be zeroed and they are large, so we can save a lot
-** of run-time by skipping the initialization of those elements.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeCursorZero(BtCursor *p){
-  memset(p, 0, offsetof(BtCursor, BTCURSOR_FIRST_UNINIT));
-}
-
-/*
-** Close a cursor.  The read lock on the database file is released
-** when the last cursor is closed.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCloseCursor(BtCursor *pCur){
-  Btree *pBtree = pCur->pBtree;
-  if( pBtree ){
-    BtShared *pBt = pCur->pBt;
-    tdsqlite3BtreeEnter(pBtree);
-    assert( pBt->pCursor!=0 );
-    if( pBt->pCursor==pCur ){
-      pBt->pCursor = pCur->pNext;
-    }else{
-      BtCursor *pPrev = pBt->pCursor;
-      do{
-        if( pPrev->pNext==pCur ){
-          pPrev->pNext = pCur->pNext;
-          break;
-        }
-        pPrev = pPrev->pNext;
-      }while( ALWAYS(pPrev) );
-    }
-    btreeReleaseAllCursorPages(pCur);
-    unlockBtreeIfUnused(pBt);
-    tdsqlite3_free(pCur->aOverflow);
-    tdsqlite3_free(pCur->pKey);
-    tdsqlite3BtreeLeave(pBtree);
-    pCur->pBtree = 0;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Make sure the BtCursor* given in the argument has a valid
-** BtCursor.info structure.  If it is not already valid, call
-** btreeParseCell() to fill it in.
-**
-** BtCursor.info is a cache of the information in the current cell.
-** Using this cache reduces the number of calls to btreeParseCell().
-*/
-#ifndef NDEBUG
-  static int cellInfoEqual(CellInfo *a, CellInfo *b){
-    if( a->nKey!=b->nKey ) return 0;
-    if( a->pPayload!=b->pPayload ) return 0;
-    if( a->nPayload!=b->nPayload ) return 0;
-    if( a->nLocal!=b->nLocal ) return 0;
-    if( a->nSize!=b->nSize ) return 0;
-    return 1;
-  }
-  static void assertCellInfo(BtCursor *pCur){
-    CellInfo info;
-    memset(&info, 0, sizeof(info));
-    btreeParseCell(pCur->pPage, pCur->ix, &info);
-    assert( CORRUPT_DB || cellInfoEqual(&info, &pCur->info) );
-  }
-#else
-  #define assertCellInfo(x)
-#endif
-static SQLITE_NOINLINE void getCellInfo(BtCursor *pCur){
-  if( pCur->info.nSize==0 ){
-    pCur->curFlags |= BTCF_ValidNKey;
-    btreeParseCell(pCur->pPage,pCur->ix,&pCur->info);
-  }else{
-    assertCellInfo(pCur);
-  }
-}
-
-#ifndef NDEBUG  /* The next routine used only within assert() statements */
-/*
-** Return true if the given BtCursor is valid.  A valid cursor is one
-** that is currently pointing to a row in a (non-empty) table.
-** This is a verification routine is used only within assert() statements.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCursorIsValid(BtCursor *pCur){
-  return pCur && pCur->eState==CURSOR_VALID;
-}
-#endif /* NDEBUG */
-SQLITE_PRIVATE int tdsqlite3BtreeCursorIsValidNN(BtCursor *pCur){
-  assert( pCur!=0 );
-  return pCur->eState==CURSOR_VALID;
-}
-
-/*
-** Return the value of the integer key or "rowid" for a table btree.
-** This routine is only valid for a cursor that is pointing into a
-** ordinary table btree.  If the cursor points to an index btree or
-** is invalid, the result of this routine is undefined.
-*/
-SQLITE_PRIVATE i64 tdsqlite3BtreeIntegerKey(BtCursor *pCur){
-  assert( cursorHoldsMutex(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  assert( pCur->curIntKey );
-  getCellInfo(pCur);
-  return pCur->info.nKey;
-}
-
-/*
-** Pin or unpin a cursor.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeCursorPin(BtCursor *pCur){
-  assert( (pCur->curFlags & BTCF_Pinned)==0 );
-  pCur->curFlags |= BTCF_Pinned;
-}
-SQLITE_PRIVATE void tdsqlite3BtreeCursorUnpin(BtCursor *pCur){
-  assert( (pCur->curFlags & BTCF_Pinned)!=0 );
-  pCur->curFlags &= ~BTCF_Pinned;
-}
-
-#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC
-/*
-** Return the offset into the database file for the start of the
-** payload to which the cursor is pointing.
-*/
-SQLITE_PRIVATE i64 tdsqlite3BtreeOffset(BtCursor *pCur){
-  assert( cursorHoldsMutex(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  getCellInfo(pCur);
-  return (i64)pCur->pBt->pageSize*((i64)pCur->pPage->pgno - 1) +
-         (i64)(pCur->info.pPayload - pCur->pPage->aData);
-}
-#endif /* SQLITE_ENABLE_OFFSET_SQL_FUNC */
-
-/*
-** Return the number of bytes of payload for the entry that pCur is
-** currently pointing to.  For table btrees, this will be the amount
-** of data.  For index btrees, this will be the size of the key.
-**
-** The caller must guarantee that the cursor is pointing to a non-NULL
-** valid entry.  In other words, the calling procedure must guarantee
-** that the cursor has Cursor.eState==CURSOR_VALID.
-*/
-SQLITE_PRIVATE u32 tdsqlite3BtreePayloadSize(BtCursor *pCur){
-  assert( cursorHoldsMutex(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  getCellInfo(pCur);
-  return pCur->info.nPayload;
-}
-
-/*
-** Return an upper bound on the size of any record for the table
-** that the cursor is pointing into.
-**
-** This is an optimization.  Everything will still work if this
-** routine always returns 2147483647 (which is the largest record
-** that SQLite can handle) or more.  But returning a smaller value might
-** prevent large memory allocations when trying to interpret a
-** corrupt datrabase.
-**
-** The current implementation merely returns the size of the underlying
-** database file.
-*/
-SQLITE_PRIVATE tdsqlite3_int64 tdsqlite3BtreeMaxRecordSize(BtCursor *pCur){
-  assert( cursorHoldsMutex(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  return pCur->pBt->pageSize * (tdsqlite3_int64)pCur->pBt->nPage;
-}
-
-/*
-** Given the page number of an overflow page in the database (parameter
-** ovfl), this function finds the page number of the next page in the 
-** linked list of overflow pages. If possible, it uses the auto-vacuum
-** pointer-map data instead of reading the content of page ovfl to do so. 
-**
-** If an error occurs an SQLite error code is returned. Otherwise:
-**
-** The page number of the next overflow page in the linked list is 
-** written to *pPgnoNext. If page ovfl is the last page in its linked 
-** list, *pPgnoNext is set to zero. 
-**
-** If ppPage is not NULL, and a reference to the MemPage object corresponding
-** to page number pOvfl was obtained, then *ppPage is set to point to that
-** reference. It is the responsibility of the caller to call releasePage()
-** on *ppPage to free the reference. In no reference was obtained (because
-** the pointer-map was used to obtain the value for *pPgnoNext), then
-** *ppPage is set to zero.
-*/
-static int getOverflowPage(
-  BtShared *pBt,               /* The database file */
-  Pgno ovfl,                   /* Current overflow page number */
-  MemPage **ppPage,            /* OUT: MemPage handle (may be NULL) */
-  Pgno *pPgnoNext              /* OUT: Next overflow page number */
-){
-  Pgno next = 0;
-  MemPage *pPage = 0;
-  int rc = SQLITE_OK;
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert(pPgnoNext);
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  /* Try to find the next page in the overflow list using the
-  ** autovacuum pointer-map pages. Guess that the next page in 
-  ** the overflow list is page number (ovfl+1). If that guess turns 
-  ** out to be wrong, fall back to loading the data of page 
-  ** number ovfl to determine the next page number.
-  */
-  if( pBt->autoVacuum ){
-    Pgno pgno;
-    Pgno iGuess = ovfl+1;
-    u8 eType;
-
-    while( PTRMAP_ISPAGE(pBt, iGuess) || iGuess==PENDING_BYTE_PAGE(pBt) ){
-      iGuess++;
-    }
-
-    if( iGuess<=btreePagecount(pBt) ){
-      rc = ptrmapGet(pBt, iGuess, &eType, &pgno);
-      if( rc==SQLITE_OK && eType==PTRMAP_OVERFLOW2 && pgno==ovfl ){
-        next = iGuess;
-        rc = SQLITE_DONE;
-      }
-    }
-  }
-#endif
-
-  assert( next==0 || rc==SQLITE_DONE );
-  if( rc==SQLITE_OK ){
-    rc = btreeGetPage(pBt, ovfl, &pPage, (ppPage==0) ? PAGER_GET_READONLY : 0);
-    assert( rc==SQLITE_OK || pPage==0 );
-    if( rc==SQLITE_OK ){
-      next = get4byte(pPage->aData);
-    }
-  }
-
-  *pPgnoNext = next;
-  if( ppPage ){
-    *ppPage = pPage;
-  }else{
-    releasePage(pPage);
-  }
-  return (rc==SQLITE_DONE ? SQLITE_OK : rc);
-}
-
-/*
-** Copy data from a buffer to a page, or from a page to a buffer.
-**
-** pPayload is a pointer to data stored on database page pDbPage.
-** If argument eOp is false, then nByte bytes of data are copied
-** from pPayload to the buffer pointed at by pBuf. If eOp is true,
-** then tdsqlite3PagerWrite() is called on pDbPage and nByte bytes
-** of data are copied from the buffer pBuf to pPayload.
-**
-** SQLITE_OK is returned on success, otherwise an error code.
-*/
-static int copyPayload(
-  void *pPayload,           /* Pointer to page data */
-  void *pBuf,               /* Pointer to buffer */
-  int nByte,                /* Number of bytes to copy */
-  int eOp,                  /* 0 -> copy from page, 1 -> copy to page */
-  DbPage *pDbPage           /* Page containing pPayload */
-){
-  if( eOp ){
-    /* Copy data from buffer to page (a write operation) */
-    int rc = tdsqlite3PagerWrite(pDbPage);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    memcpy(pPayload, pBuf, nByte);
-  }else{
-    /* Copy data from page to buffer (a read operation) */
-    memcpy(pBuf, pPayload, nByte);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** This function is used to read or overwrite payload information
-** for the entry that the pCur cursor is pointing to. The eOp
-** argument is interpreted as follows:
-**
-**   0: The operation is a read. Populate the overflow cache.
-**   1: The operation is a write. Populate the overflow cache.
-**
-** A total of "amt" bytes are read or written beginning at "offset".
-** Data is read to or from the buffer pBuf.
-**
-** The content being read or written might appear on the main page
-** or be scattered out on multiple overflow pages.
-**
-** If the current cursor entry uses one or more overflow pages
-** this function may allocate space for and lazily populate
-** the overflow page-list cache array (BtCursor.aOverflow). 
-** Subsequent calls use this cache to make seeking to the supplied offset 
-** more efficient.
-**
-** Once an overflow page-list cache has been allocated, it must be
-** invalidated if some other cursor writes to the same table, or if
-** the cursor is moved to a different row. Additionally, in auto-vacuum
-** mode, the following events may invalidate an overflow page-list cache.
-**
-**   * An incremental vacuum,
-**   * A commit in auto_vacuum="full" mode,
-**   * Creating a table (may require moving an overflow page).
-*/
-static int accessPayload(
-  BtCursor *pCur,      /* Cursor pointing to entry to read from */
-  u32 offset,          /* Begin reading this far into payload */
-  u32 amt,             /* Read this many bytes */
-  unsigned char *pBuf, /* Write the bytes into this buffer */ 
-  int eOp              /* zero to read. non-zero to write. */
-){
-  unsigned char *aPayload;
-  int rc = SQLITE_OK;
-  int iIdx = 0;
-  MemPage *pPage = pCur->pPage;               /* Btree page of current entry */
-  BtShared *pBt = pCur->pBt;                  /* Btree this cursor belongs to */
-#ifdef SQLITE_DIRECT_OVERFLOW_READ
-  unsigned char * const pBufStart = pBuf;     /* Start of original out buffer */
-#endif
-
-  assert( pPage );
-  assert( eOp==0 || eOp==1 );
-  assert( pCur->eState==CURSOR_VALID );
-  assert( pCur->ix<pPage->nCell );
-  assert( cursorHoldsMutex(pCur) );
-
-  getCellInfo(pCur);
-  aPayload = pCur->info.pPayload;
-  assert( offset+amt <= pCur->info.nPayload );
-
-  assert( aPayload > pPage->aData );
-  if( (uptr)(aPayload - pPage->aData) > (pBt->usableSize - pCur->info.nLocal) ){
-    /* Trying to read or write past the end of the data is an error.  The
-    ** conditional above is really:
-    **    &aPayload[pCur->info.nLocal] > &pPage->aData[pBt->usableSize]
-    ** but is recast into its current form to avoid integer overflow problems
-    */
-    return SQLITE_CORRUPT_PAGE(pPage);
-  }
-
-  /* Check if data must be read/written to/from the btree page itself. */
-  if( offset<pCur->info.nLocal ){
-    int a = amt;
-    if( a+offset>pCur->info.nLocal ){
-      a = pCur->info.nLocal - offset;
-    }
-    rc = copyPayload(&aPayload[offset], pBuf, a, eOp, pPage->pDbPage);
-    offset = 0;
-    pBuf += a;
-    amt -= a;
-  }else{
-    offset -= pCur->info.nLocal;
-  }
-
-
-  if( rc==SQLITE_OK && amt>0 ){
-    const u32 ovflSize = pBt->usableSize - 4;  /* Bytes content per ovfl page */
-    Pgno nextPage;
-
-    nextPage = get4byte(&aPayload[pCur->info.nLocal]);
-
-    /* If the BtCursor.aOverflow[] has not been allocated, allocate it now.
-    **
-    ** The aOverflow[] array is sized at one entry for each overflow page
-    ** in the overflow chain. The page number of the first overflow page is
-    ** stored in aOverflow[0], etc. A value of 0 in the aOverflow[] array
-    ** means "not yet known" (the cache is lazily populated).
-    */
-    if( (pCur->curFlags & BTCF_ValidOvfl)==0 ){
-      int nOvfl = (pCur->info.nPayload-pCur->info.nLocal+ovflSize-1)/ovflSize;
-      if( pCur->aOverflow==0
-       || nOvfl*(int)sizeof(Pgno) > tdsqlite3MallocSize(pCur->aOverflow)
-      ){
-        Pgno *aNew = (Pgno*)tdsqlite3Realloc(
-            pCur->aOverflow, nOvfl*2*sizeof(Pgno)
-        );
-        if( aNew==0 ){
-          return SQLITE_NOMEM_BKPT;
-        }else{
-          pCur->aOverflow = aNew;
-        }
-      }
-      memset(pCur->aOverflow, 0, nOvfl*sizeof(Pgno));
-      pCur->curFlags |= BTCF_ValidOvfl;
-    }else{
-      /* If the overflow page-list cache has been allocated and the
-      ** entry for the first required overflow page is valid, skip
-      ** directly to it.
-      */
-      if( pCur->aOverflow[offset/ovflSize] ){
-        iIdx = (offset/ovflSize);
-        nextPage = pCur->aOverflow[iIdx];
-        offset = (offset%ovflSize);
-      }
-    }
-
-    assert( rc==SQLITE_OK && amt>0 );
-    while( nextPage ){
-      /* If required, populate the overflow page-list cache. */
-      assert( pCur->aOverflow[iIdx]==0
-              || pCur->aOverflow[iIdx]==nextPage
-              || CORRUPT_DB );
-      pCur->aOverflow[iIdx] = nextPage;
-
-      if( offset>=ovflSize ){
-        /* The only reason to read this page is to obtain the page
-        ** number for the next page in the overflow chain. The page
-        ** data is not required. So first try to lookup the overflow
-        ** page-list cache, if any, then fall back to the getOverflowPage()
-        ** function.
-        */
-        assert( pCur->curFlags & BTCF_ValidOvfl );
-        assert( pCur->pBtree->db==pBt->db );
-        if( pCur->aOverflow[iIdx+1] ){
-          nextPage = pCur->aOverflow[iIdx+1];
-        }else{
-          rc = getOverflowPage(pBt, nextPage, 0, &nextPage);
-        }
-        offset -= ovflSize;
-      }else{
-        /* Need to read this page properly. It contains some of the
-        ** range of data that is being read (eOp==0) or written (eOp!=0).
-        */
-        int a = amt;
-        if( a + offset > ovflSize ){
-          a = ovflSize - offset;
-        }
-
-#ifdef SQLITE_DIRECT_OVERFLOW_READ
-        /* If all the following are true:
-        **
-        **   1) this is a read operation, and 
-        **   2) data is required from the start of this overflow page, and
-        **   3) there are no dirty pages in the page-cache
-        **   4) the database is file-backed, and
-        **   5) the page is not in the WAL file
-        **   6) at least 4 bytes have already been read into the output buffer 
-        **
-        ** then data can be read directly from the database file into the
-        ** output buffer, bypassing the page-cache altogether. This speeds
-        ** up loading large records that span many overflow pages.
-        */
-        if( eOp==0                                             /* (1) */
-         && offset==0                                          /* (2) */
-         && tdsqlite3PagerDirectReadOk(pBt->pPager, nextPage)    /* (3,4,5) */
-         && &pBuf[-4]>=pBufStart                               /* (6) */
-        ){
-          tdsqlite3_file *fd = tdsqlite3PagerFile(pBt->pPager);
-          u8 aSave[4];
-          u8 *aWrite = &pBuf[-4];
-          assert( aWrite>=pBufStart );                         /* due to (6) */
-          memcpy(aSave, aWrite, 4);
-          rc = tdsqlite3OsRead(fd, aWrite, a+4, (i64)pBt->pageSize*(nextPage-1));
-          if( rc && nextPage>pBt->nPage ) rc = SQLITE_CORRUPT_BKPT;
-          nextPage = get4byte(aWrite);
-          memcpy(aWrite, aSave, 4);
-        }else
-#endif
-
-        {
-          DbPage *pDbPage;
-          rc = tdsqlite3PagerGet(pBt->pPager, nextPage, &pDbPage,
-              (eOp==0 ? PAGER_GET_READONLY : 0)
-          );
-          if( rc==SQLITE_OK ){
-            aPayload = tdsqlite3PagerGetData(pDbPage);
-            nextPage = get4byte(aPayload);
-            rc = copyPayload(&aPayload[offset+4], pBuf, a, eOp, pDbPage);
-            tdsqlite3PagerUnref(pDbPage);
-            offset = 0;
-          }
-        }
-        amt -= a;
-        if( amt==0 ) return rc;
-        pBuf += a;
-      }
-      if( rc ) break;
-      iIdx++;
-    }
-  }
-
-  if( rc==SQLITE_OK && amt>0 ){
-    /* Overflow chain ends prematurely */
-    return SQLITE_CORRUPT_PAGE(pPage);
-  }
-  return rc;
-}
-
-/*
-** Read part of the payload for the row at which that cursor pCur is currently
-** pointing.  "amt" bytes will be transferred into pBuf[].  The transfer
-** begins at "offset".
-**
-** pCur can be pointing to either a table or an index b-tree.
-** If pointing to a table btree, then the content section is read.  If
-** pCur is pointing to an index b-tree then the key section is read.
-**
-** For tdsqlite3BtreePayload(), the caller must ensure that pCur is pointing
-** to a valid row in the table.  For tdsqlite3BtreePayloadChecked(), the
-** cursor might be invalid or might need to be restored before being read.
-**
-** Return SQLITE_OK on success or an error code if anything goes
-** wrong.  An error is returned if "offset+amt" is larger than
-** the available payload.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreePayload(BtCursor *pCur, u32 offset, u32 amt, void *pBuf){
-  assert( cursorHoldsMutex(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  assert( pCur->iPage>=0 && pCur->pPage );
-  assert( pCur->ix<pCur->pPage->nCell );
-  return accessPayload(pCur, offset, amt, (unsigned char*)pBuf, 0);
-}
-
-/*
-** This variant of tdsqlite3BtreePayload() works even if the cursor has not
-** in the CURSOR_VALID state.  It is only used by the tdsqlite3_blob_read()
-** interface.
-*/
-#ifndef SQLITE_OMIT_INCRBLOB
-static SQLITE_NOINLINE int accessPayloadChecked(
-  BtCursor *pCur,
-  u32 offset,
-  u32 amt,
-  void *pBuf
-){
-  int rc;
-  if ( pCur->eState==CURSOR_INVALID ){
-    return SQLITE_ABORT;
-  }
-  assert( cursorOwnsBtShared(pCur) );
-  rc = btreeRestoreCursorPosition(pCur);
-  return rc ? rc : accessPayload(pCur, offset, amt, pBuf, 0);
-}
-SQLITE_PRIVATE int tdsqlite3BtreePayloadChecked(BtCursor *pCur, u32 offset, u32 amt, void *pBuf){
-  if( pCur->eState==CURSOR_VALID ){
-    assert( cursorOwnsBtShared(pCur) );
-    return accessPayload(pCur, offset, amt, pBuf, 0);
-  }else{
-    return accessPayloadChecked(pCur, offset, amt, pBuf);
-  }
-}
-#endif /* SQLITE_OMIT_INCRBLOB */
-
-/*
-** Return a pointer to payload information from the entry that the 
-** pCur cursor is pointing to.  The pointer is to the beginning of
-** the key if index btrees (pPage->intKey==0) and is the data for
-** table btrees (pPage->intKey==1). The number of bytes of available
-** key/data is written into *pAmt.  If *pAmt==0, then the value
-** returned will not be a valid pointer.
-**
-** This routine is an optimization.  It is common for the entire key
-** and data to fit on the local page and for there to be no overflow
-** pages.  When that is so, this routine can be used to access the
-** key and data without making a copy.  If the key and/or data spills
-** onto overflow pages, then accessPayload() must be used to reassemble
-** the key/data and copy it into a preallocated buffer.
-**
-** The pointer returned by this routine looks directly into the cached
-** page of the database.  The data might change or move the next time
-** any btree routine is called.
-*/
-static const void *fetchPayload(
-  BtCursor *pCur,      /* Cursor pointing to entry to read from */
-  u32 *pAmt            /* Write the number of available bytes here */
-){
-  int amt;
-  assert( pCur!=0 && pCur->iPage>=0 && pCur->pPage);
-  assert( pCur->eState==CURSOR_VALID );
-  assert( tdsqlite3_mutex_held(pCur->pBtree->db->mutex) );
-  assert( cursorOwnsBtShared(pCur) );
-  assert( pCur->ix<pCur->pPage->nCell );
-  assert( pCur->info.nSize>0 );
-  assert( pCur->info.pPayload>pCur->pPage->aData || CORRUPT_DB );
-  assert( pCur->info.pPayload<pCur->pPage->aDataEnd ||CORRUPT_DB);
-  amt = pCur->info.nLocal;
-  if( amt>(int)(pCur->pPage->aDataEnd - pCur->info.pPayload) ){
-    /* There is too little space on the page for the expected amount
-    ** of local content. Database must be corrupt. */
-    assert( CORRUPT_DB );
-    amt = MAX(0, (int)(pCur->pPage->aDataEnd - pCur->info.pPayload));
-  }
-  *pAmt = (u32)amt;
-  return (void*)pCur->info.pPayload;
-}
-
-
-/*
-** For the entry that cursor pCur is point to, return as
-** many bytes of the key or data as are available on the local
-** b-tree page.  Write the number of available bytes into *pAmt.
-**
-** The pointer returned is ephemeral.  The key/data may move
-** or be destroyed on the next call to any Btree routine,
-** including calls from other threads against the same cache.
-** Hence, a mutex on the BtShared should be held prior to calling
-** this routine.
-**
-** These routines is used to get quick access to key and data
-** in the common case where no overflow pages are used.
-*/
-SQLITE_PRIVATE const void *tdsqlite3BtreePayloadFetch(BtCursor *pCur, u32 *pAmt){
-  return fetchPayload(pCur, pAmt);
-}
-
-
-/*
-** Move the cursor down to a new child page.  The newPgno argument is the
-** page number of the child page to move to.
-**
-** This function returns SQLITE_CORRUPT if the page-header flags field of
-** the new child page does not match the flags field of the parent (i.e.
-** if an intkey page appears to be the parent of a non-intkey page, or
-** vice-versa).
-*/
-static int moveToChild(BtCursor *pCur, u32 newPgno){
-  BtShared *pBt = pCur->pBt;
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  assert( pCur->iPage<BTCURSOR_MAX_DEPTH );
-  assert( pCur->iPage>=0 );
-  if( pCur->iPage>=(BTCURSOR_MAX_DEPTH-1) ){
-    return SQLITE_CORRUPT_BKPT;
-  }
-  pCur->info.nSize = 0;
-  pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl);
-  pCur->aiIdx[pCur->iPage] = pCur->ix;
-  pCur->apPage[pCur->iPage] = pCur->pPage;
-  pCur->ix = 0;
-  pCur->iPage++;
-  return getAndInitPage(pBt, newPgno, &pCur->pPage, pCur, pCur->curPagerFlags);
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Page pParent is an internal (non-leaf) tree page. This function 
-** asserts that page number iChild is the left-child if the iIdx'th
-** cell in page pParent. Or, if iIdx is equal to the total number of
-** cells in pParent, that page number iChild is the right-child of
-** the page.
-*/
-static void assertParentIndex(MemPage *pParent, int iIdx, Pgno iChild){
-  if( CORRUPT_DB ) return;  /* The conditions tested below might not be true
-                            ** in a corrupt database */
-  assert( iIdx<=pParent->nCell );
-  if( iIdx==pParent->nCell ){
-    assert( get4byte(&pParent->aData[pParent->hdrOffset+8])==iChild );
-  }else{
-    assert( get4byte(findCell(pParent, iIdx))==iChild );
-  }
-}
-#else
-#  define assertParentIndex(x,y,z) 
-#endif
-
-/*
-** Move the cursor up to the parent page.
-**
-** pCur->idx is set to the cell index that contains the pointer
-** to the page we are coming from.  If we are coming from the
-** right-most child page then pCur->idx is set to one more than
-** the largest cell index.
-*/
-static void moveToParent(BtCursor *pCur){
-  MemPage *pLeaf;
-  assert( cursorOwnsBtShared(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  assert( pCur->iPage>0 );
-  assert( pCur->pPage );
-  assertParentIndex(
-    pCur->apPage[pCur->iPage-1], 
-    pCur->aiIdx[pCur->iPage-1], 
-    pCur->pPage->pgno
-  );
-  testcase( pCur->aiIdx[pCur->iPage-1] > pCur->apPage[pCur->iPage-1]->nCell );
-  pCur->info.nSize = 0;
-  pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl);
-  pCur->ix = pCur->aiIdx[pCur->iPage-1];
-  pLeaf = pCur->pPage;
-  pCur->pPage = pCur->apPage[--pCur->iPage];
-  releasePageNotNull(pLeaf);
-}
-
-/*
-** Move the cursor to point to the root page of its b-tree structure.
-**
-** If the table has a virtual root page, then the cursor is moved to point
-** to the virtual root page instead of the actual root page. A table has a
-** virtual root page when the actual root page contains no cells and a 
-** single child page. This can only happen with the table rooted at page 1.
-**
-** If the b-tree structure is empty, the cursor state is set to 
-** CURSOR_INVALID and this routine returns SQLITE_EMPTY. Otherwise,
-** the cursor is set to point to the first cell located on the root
-** (or virtual root) page and the cursor state is set to CURSOR_VALID.
-**
-** If this function returns successfully, it may be assumed that the
-** page-header flags indicate that the [virtual] root-page is the expected 
-** kind of b-tree page (i.e. if when opening the cursor the caller did not
-** specify a KeyInfo structure the flags byte is set to 0x05 or 0x0D,
-** indicating a table b-tree, or if the caller did specify a KeyInfo 
-** structure the flags byte is set to 0x02 or 0x0A, indicating an index
-** b-tree).
-*/
-static int moveToRoot(BtCursor *pCur){
-  MemPage *pRoot;
-  int rc = SQLITE_OK;
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( CURSOR_INVALID < CURSOR_REQUIRESEEK );
-  assert( CURSOR_VALID   < CURSOR_REQUIRESEEK );
-  assert( CURSOR_FAULT   > CURSOR_REQUIRESEEK );
-  assert( pCur->eState < CURSOR_REQUIRESEEK || pCur->iPage<0 );
-  assert( pCur->pgnoRoot>0 || pCur->iPage<0 );
-
-  if( pCur->iPage>=0 ){
-    if( pCur->iPage ){
-      releasePageNotNull(pCur->pPage);
-      while( --pCur->iPage ){
-        releasePageNotNull(pCur->apPage[pCur->iPage]);
-      }
-      pCur->pPage = pCur->apPage[0];
-      goto skip_init;
-    }
-  }else if( pCur->pgnoRoot==0 ){
-    pCur->eState = CURSOR_INVALID;
-    return SQLITE_EMPTY;
-  }else{
-    assert( pCur->iPage==(-1) );
-    if( pCur->eState>=CURSOR_REQUIRESEEK ){
-      if( pCur->eState==CURSOR_FAULT ){
-        assert( pCur->skipNext!=SQLITE_OK );
-        return pCur->skipNext;
-      }
-      tdsqlite3BtreeClearCursor(pCur);
-    }
-    rc = getAndInitPage(pCur->pBtree->pBt, pCur->pgnoRoot, &pCur->pPage,
-                        0, pCur->curPagerFlags);
-    if( rc!=SQLITE_OK ){
-      pCur->eState = CURSOR_INVALID;
-      return rc;
-    }
-    pCur->iPage = 0;
-    pCur->curIntKey = pCur->pPage->intKey;
-  }
-  pRoot = pCur->pPage;
-  assert( pRoot->pgno==pCur->pgnoRoot );
-
-  /* If pCur->pKeyInfo is not NULL, then the caller that opened this cursor
-  ** expected to open it on an index b-tree. Otherwise, if pKeyInfo is
-  ** NULL, the caller expects a table b-tree. If this is not the case,
-  ** return an SQLITE_CORRUPT error. 
-  **
-  ** Earlier versions of SQLite assumed that this test could not fail
-  ** if the root page was already loaded when this function was called (i.e.
-  ** if pCur->iPage>=0). But this is not so if the database is corrupted 
-  ** in such a way that page pRoot is linked into a second b-tree table 
-  ** (or the freelist).  */
-  assert( pRoot->intKey==1 || pRoot->intKey==0 );
-  if( pRoot->isInit==0 || (pCur->pKeyInfo==0)!=pRoot->intKey ){
-    return SQLITE_CORRUPT_PAGE(pCur->pPage);
-  }
-
-skip_init:  
-  pCur->ix = 0;
-  pCur->info.nSize = 0;
-  pCur->curFlags &= ~(BTCF_AtLast|BTCF_ValidNKey|BTCF_ValidOvfl);
-
-  pRoot = pCur->pPage;
-  if( pRoot->nCell>0 ){
-    pCur->eState = CURSOR_VALID;
-  }else if( !pRoot->leaf ){
-    Pgno subpage;
-    if( pRoot->pgno!=1 ) return SQLITE_CORRUPT_BKPT;
-    subpage = get4byte(&pRoot->aData[pRoot->hdrOffset+8]);
-    pCur->eState = CURSOR_VALID;
-    rc = moveToChild(pCur, subpage);
-  }else{
-    pCur->eState = CURSOR_INVALID;
-    rc = SQLITE_EMPTY;
-  }
-  return rc;
-}
-
-/*
-** Move the cursor down to the left-most leaf entry beneath the
-** entry to which it is currently pointing.
-**
-** The left-most leaf is the one with the smallest key - the first
-** in ascending order.
-*/
-static int moveToLeftmost(BtCursor *pCur){
-  Pgno pgno;
-  int rc = SQLITE_OK;
-  MemPage *pPage;
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  while( rc==SQLITE_OK && !(pPage = pCur->pPage)->leaf ){
-    assert( pCur->ix<pPage->nCell );
-    pgno = get4byte(findCell(pPage, pCur->ix));
-    rc = moveToChild(pCur, pgno);
-  }
-  return rc;
-}
-
-/*
-** Move the cursor down to the right-most leaf entry beneath the
-** page to which it is currently pointing.  Notice the difference
-** between moveToLeftmost() and moveToRightmost().  moveToLeftmost()
-** finds the left-most entry beneath the *entry* whereas moveToRightmost()
-** finds the right-most entry beneath the *page*.
-**
-** The right-most entry is the one with the largest key - the last
-** key in ascending order.
-*/
-static int moveToRightmost(BtCursor *pCur){
-  Pgno pgno;
-  int rc = SQLITE_OK;
-  MemPage *pPage = 0;
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( pCur->eState==CURSOR_VALID );
-  while( !(pPage = pCur->pPage)->leaf ){
-    pgno = get4byte(&pPage->aData[pPage->hdrOffset+8]);
-    pCur->ix = pPage->nCell;
-    rc = moveToChild(pCur, pgno);
-    if( rc ) return rc;
-  }
-  pCur->ix = pPage->nCell-1;
-  assert( pCur->info.nSize==0 );
-  assert( (pCur->curFlags & BTCF_ValidNKey)==0 );
-  return SQLITE_OK;
-}
-
-/* Move the cursor to the first entry in the table.  Return SQLITE_OK
-** on success.  Set *pRes to 0 if the cursor actually points to something
-** or set *pRes to 1 if the table is empty.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeFirst(BtCursor *pCur, int *pRes){
-  int rc;
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( tdsqlite3_mutex_held(pCur->pBtree->db->mutex) );
-  rc = moveToRoot(pCur);
-  if( rc==SQLITE_OK ){
-    assert( pCur->pPage->nCell>0 );
-    *pRes = 0;
-    rc = moveToLeftmost(pCur);
-  }else if( rc==SQLITE_EMPTY ){
-    assert( pCur->pgnoRoot==0 || pCur->pPage->nCell==0 );
-    *pRes = 1;
-    rc = SQLITE_OK;
-  }
-  return rc;
-}
-
-/* Move the cursor to the last entry in the table.  Return SQLITE_OK
-** on success.  Set *pRes to 0 if the cursor actually points to something
-** or set *pRes to 1 if the table is empty.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeLast(BtCursor *pCur, int *pRes){
-  int rc;
- 
-  assert( cursorOwnsBtShared(pCur) );
-  assert( tdsqlite3_mutex_held(pCur->pBtree->db->mutex) );
-
-  /* If the cursor already points to the last entry, this is a no-op. */
-  if( CURSOR_VALID==pCur->eState && (pCur->curFlags & BTCF_AtLast)!=0 ){
-#ifdef SQLITE_DEBUG
-    /* This block serves to assert() that the cursor really does point 
-    ** to the last entry in the b-tree. */
-    int ii;
-    for(ii=0; ii<pCur->iPage; ii++){
-      assert( pCur->aiIdx[ii]==pCur->apPage[ii]->nCell );
-    }
-    assert( pCur->ix==pCur->pPage->nCell-1 );
-    assert( pCur->pPage->leaf );
-#endif
-    *pRes = 0;
-    return SQLITE_OK;
-  }
-
-  rc = moveToRoot(pCur);
-  if( rc==SQLITE_OK ){
-    assert( pCur->eState==CURSOR_VALID );
-    *pRes = 0;
-    rc = moveToRightmost(pCur);
-    if( rc==SQLITE_OK ){
-      pCur->curFlags |= BTCF_AtLast;
-    }else{
-      pCur->curFlags &= ~BTCF_AtLast;
-    }
-  }else if( rc==SQLITE_EMPTY ){
-    assert( pCur->pgnoRoot==0 || pCur->pPage->nCell==0 );
-    *pRes = 1;
-    rc = SQLITE_OK;
-  }
-  return rc;
-}
-
-/* Move the cursor so that it points to an entry near the key 
-** specified by pIdxKey or intKey.   Return a success code.
-**
-** For INTKEY tables, the intKey parameter is used.  pIdxKey 
-** must be NULL.  For index tables, pIdxKey is used and intKey
-** is ignored.
-**
-** If an exact match is not found, then the cursor is always
-** left pointing at a leaf page which would hold the entry if it
-** were present.  The cursor might point to an entry that comes
-** before or after the key.
-**
-** An integer is written into *pRes which is the result of
-** comparing the key with the entry to which the cursor is 
-** pointing.  The meaning of the integer written into
-** *pRes is as follows:
-**
-**     *pRes<0      The cursor is left pointing at an entry that
-**                  is smaller than intKey/pIdxKey or if the table is empty
-**                  and the cursor is therefore left point to nothing.
-**
-**     *pRes==0     The cursor is left pointing at an entry that
-**                  exactly matches intKey/pIdxKey.
-**
-**     *pRes>0      The cursor is left pointing at an entry that
-**                  is larger than intKey/pIdxKey.
-**
-** For index tables, the pIdxKey->eqSeen field is set to 1 if there
-** exists an entry in the table that exactly matches pIdxKey.  
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeMovetoUnpacked(
-  BtCursor *pCur,          /* The cursor to be moved */
-  UnpackedRecord *pIdxKey, /* Unpacked index key */
-  i64 intKey,              /* The table key */
-  int biasRight,           /* If true, bias the search to the high end */
-  int *pRes                /* Write search results here */
-){
-  int rc;
-  RecordCompare xRecordCompare;
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( tdsqlite3_mutex_held(pCur->pBtree->db->mutex) );
-  assert( pRes );
-  assert( (pIdxKey==0)==(pCur->pKeyInfo==0) );
-  assert( pCur->eState!=CURSOR_VALID || (pIdxKey==0)==(pCur->curIntKey!=0) );
-
-  /* If the cursor is already positioned at the point we are trying
-  ** to move to, then just return without doing any work */
-  if( pIdxKey==0
-   && pCur->eState==CURSOR_VALID && (pCur->curFlags & BTCF_ValidNKey)!=0
-  ){
-    if( pCur->info.nKey==intKey ){
-      *pRes = 0;
-      return SQLITE_OK;
-    }
-    if( pCur->info.nKey<intKey ){
-      if( (pCur->curFlags & BTCF_AtLast)!=0 ){
-        *pRes = -1;
-        return SQLITE_OK;
-      }
-      /* If the requested key is one more than the previous key, then
-      ** try to get there using tdsqlite3BtreeNext() rather than a full
-      ** binary search.  This is an optimization only.  The correct answer
-      ** is still obtained without this case, only a little more slowely */
-      if( pCur->info.nKey+1==intKey ){
-        *pRes = 0;
-        rc = tdsqlite3BtreeNext(pCur, 0);
-        if( rc==SQLITE_OK ){
-          getCellInfo(pCur);
-          if( pCur->info.nKey==intKey ){
-            return SQLITE_OK;
-          }
-        }else if( rc==SQLITE_DONE ){
-          rc = SQLITE_OK;
-        }else{
-          return rc;
-        }
-      }
-    }
-  }
-
-  if( pIdxKey ){
-    xRecordCompare = tdsqlite3VdbeFindCompare(pIdxKey);
-    pIdxKey->errCode = 0;
-    assert( pIdxKey->default_rc==1 
-         || pIdxKey->default_rc==0 
-         || pIdxKey->default_rc==-1
-    );
-  }else{
-    xRecordCompare = 0; /* All keys are integers */
-  }
-
-  rc = moveToRoot(pCur);
-  if( rc ){
-    if( rc==SQLITE_EMPTY ){
-      assert( pCur->pgnoRoot==0 || pCur->pPage->nCell==0 );
-      *pRes = -1;
-      return SQLITE_OK;
-    }
-    return rc;
-  }
-  assert( pCur->pPage );
-  assert( pCur->pPage->isInit );
-  assert( pCur->eState==CURSOR_VALID );
-  assert( pCur->pPage->nCell > 0 );
-  assert( pCur->iPage==0 || pCur->apPage[0]->intKey==pCur->curIntKey );
-  assert( pCur->curIntKey || pIdxKey );
-  for(;;){
-    int lwr, upr, idx, c;
-    Pgno chldPg;
-    MemPage *pPage = pCur->pPage;
-    u8 *pCell;                          /* Pointer to current cell in pPage */
-
-    /* pPage->nCell must be greater than zero. If this is the root-page
-    ** the cursor would have been INVALID above and this for(;;) loop
-    ** not run. If this is not the root-page, then the moveToChild() routine
-    ** would have already detected db corruption. Similarly, pPage must
-    ** be the right kind (index or table) of b-tree page. Otherwise
-    ** a moveToChild() or moveToRoot() call would have detected corruption.  */
-    assert( pPage->nCell>0 );
-    assert( pPage->intKey==(pIdxKey==0) );
-    lwr = 0;
-    upr = pPage->nCell-1;
-    assert( biasRight==0 || biasRight==1 );
-    idx = upr>>(1-biasRight); /* idx = biasRight ? upr : (lwr+upr)/2; */
-    pCur->ix = (u16)idx;
-    if( xRecordCompare==0 ){
-      for(;;){
-        i64 nCellKey;
-        pCell = findCellPastPtr(pPage, idx);
-        if( pPage->intKeyLeaf ){
-          while( 0x80 <= *(pCell++) ){
-            if( pCell>=pPage->aDataEnd ){
-              return SQLITE_CORRUPT_PAGE(pPage);
-            }
-          }
-        }
-        getVarint(pCell, (u64*)&nCellKey);
-        if( nCellKey<intKey ){
-          lwr = idx+1;
-          if( lwr>upr ){ c = -1; break; }
-        }else if( nCellKey>intKey ){
-          upr = idx-1;
-          if( lwr>upr ){ c = +1; break; }
-        }else{
-          assert( nCellKey==intKey );
-          pCur->ix = (u16)idx;
-          if( !pPage->leaf ){
-            lwr = idx;
-            goto moveto_next_layer;
-          }else{
-            pCur->curFlags |= BTCF_ValidNKey;
-            pCur->info.nKey = nCellKey;
-            pCur->info.nSize = 0;
-            *pRes = 0;
-            return SQLITE_OK;
-          }
-        }
-        assert( lwr+upr>=0 );
-        idx = (lwr+upr)>>1;  /* idx = (lwr+upr)/2; */
-      }
-    }else{
-      for(;;){
-        int nCell;  /* Size of the pCell cell in bytes */
-        pCell = findCellPastPtr(pPage, idx);
-
-        /* The maximum supported page-size is 65536 bytes. This means that
-        ** the maximum number of record bytes stored on an index B-Tree
-        ** page is less than 16384 bytes and may be stored as a 2-byte
-        ** varint. This information is used to attempt to avoid parsing 
-        ** the entire cell by checking for the cases where the record is 
-        ** stored entirely within the b-tree page by inspecting the first 
-        ** 2 bytes of the cell.
-        */
-        nCell = pCell[0];
-        if( nCell<=pPage->max1bytePayload ){
-          /* This branch runs if the record-size field of the cell is a
-          ** single byte varint and the record fits entirely on the main
-          ** b-tree page.  */
-          testcase( pCell+nCell+1==pPage->aDataEnd );
-          c = xRecordCompare(nCell, (void*)&pCell[1], pIdxKey);
-        }else if( !(pCell[1] & 0x80) 
-          && (nCell = ((nCell&0x7f)<<7) + pCell[1])<=pPage->maxLocal
-        ){
-          /* The record-size field is a 2 byte varint and the record 
-          ** fits entirely on the main b-tree page.  */
-          testcase( pCell+nCell+2==pPage->aDataEnd );
-          c = xRecordCompare(nCell, (void*)&pCell[2], pIdxKey);
-        }else{
-          /* The record flows over onto one or more overflow pages. In
-          ** this case the whole cell needs to be parsed, a buffer allocated
-          ** and accessPayload() used to retrieve the record into the
-          ** buffer before VdbeRecordCompare() can be called. 
-          **
-          ** If the record is corrupt, the xRecordCompare routine may read
-          ** up to two varints past the end of the buffer. An extra 18 
-          ** bytes of padding is allocated at the end of the buffer in
-          ** case this happens.  */
-          void *pCellKey;
-          u8 * const pCellBody = pCell - pPage->childPtrSize;
-          const int nOverrun = 18;  /* Size of the overrun padding */
-          pPage->xParseCell(pPage, pCellBody, &pCur->info);
-          nCell = (int)pCur->info.nKey;
-          testcase( nCell<0 );   /* True if key size is 2^32 or more */
-          testcase( nCell==0 );  /* Invalid key size:  0x80 0x80 0x00 */
-          testcase( nCell==1 );  /* Invalid key size:  0x80 0x80 0x01 */
-          testcase( nCell==2 );  /* Minimum legal index key size */
-          if( nCell<2 || nCell/pCur->pBt->usableSize>pCur->pBt->nPage ){
-            rc = SQLITE_CORRUPT_PAGE(pPage);
-            goto moveto_finish;
-          }
-          pCellKey = tdsqlite3Malloc( nCell+nOverrun );
-          if( pCellKey==0 ){
-            rc = SQLITE_NOMEM_BKPT;
-            goto moveto_finish;
-          }
-          pCur->ix = (u16)idx;
-          rc = accessPayload(pCur, 0, nCell, (unsigned char*)pCellKey, 0);
-          memset(((u8*)pCellKey)+nCell,0,nOverrun); /* Fix uninit warnings */
-          pCur->curFlags &= ~BTCF_ValidOvfl;
-          if( rc ){
-            tdsqlite3_free(pCellKey);
-            goto moveto_finish;
-          }
-          c = tdsqlite3VdbeRecordCompare(nCell, pCellKey, pIdxKey);
-          tdsqlite3_free(pCellKey);
-        }
-        assert( 
-            (pIdxKey->errCode!=SQLITE_CORRUPT || c==0)
-         && (pIdxKey->errCode!=SQLITE_NOMEM || pCur->pBtree->db->mallocFailed)
-        );
-        if( c<0 ){
-          lwr = idx+1;
-        }else if( c>0 ){
-          upr = idx-1;
-        }else{
-          assert( c==0 );
-          *pRes = 0;
-          rc = SQLITE_OK;
-          pCur->ix = (u16)idx;
-          if( pIdxKey->errCode ) rc = SQLITE_CORRUPT_BKPT;
-          goto moveto_finish;
-        }
-        if( lwr>upr ) break;
-        assert( lwr+upr>=0 );
-        idx = (lwr+upr)>>1;  /* idx = (lwr+upr)/2 */
-      }
-    }
-    assert( lwr==upr+1 || (pPage->intKey && !pPage->leaf) );
-    assert( pPage->isInit );
-    if( pPage->leaf ){
-      assert( pCur->ix<pCur->pPage->nCell );
-      pCur->ix = (u16)idx;
-      *pRes = c;
-      rc = SQLITE_OK;
-      goto moveto_finish;
-    }
-moveto_next_layer:
-    if( lwr>=pPage->nCell ){
-      chldPg = get4byte(&pPage->aData[pPage->hdrOffset+8]);
-    }else{
-      chldPg = get4byte(findCell(pPage, lwr));
-    }
-    pCur->ix = (u16)lwr;
-    rc = moveToChild(pCur, chldPg);
-    if( rc ) break;
-  }
-moveto_finish:
-  pCur->info.nSize = 0;
-  assert( (pCur->curFlags & BTCF_ValidOvfl)==0 );
-  return rc;
-}
-
-
-/*
-** Return TRUE if the cursor is not pointing at an entry of the table.
-**
-** TRUE will be returned after a call to tdsqlite3BtreeNext() moves
-** past the last entry in the table or tdsqlite3BtreePrev() moves past
-** the first entry.  TRUE is also returned if the table is empty.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeEof(BtCursor *pCur){
-  /* TODO: What if the cursor is in CURSOR_REQUIRESEEK but all table entries
-  ** have been deleted? This API will need to change to return an error code
-  ** as well as the boolean result value.
-  */
-  return (CURSOR_VALID!=pCur->eState);
-}
-
-/*
-** Return an estimate for the number of rows in the table that pCur is
-** pointing to.  Return a negative number if no estimate is currently 
-** available.
-*/
-SQLITE_PRIVATE i64 tdsqlite3BtreeRowCountEst(BtCursor *pCur){
-  i64 n;
-  u8 i;
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( tdsqlite3_mutex_held(pCur->pBtree->db->mutex) );
-
-  /* Currently this interface is only called by the OP_IfSmaller
-  ** opcode, and it that case the cursor will always be valid and
-  ** will always point to a leaf node. */
-  if( NEVER(pCur->eState!=CURSOR_VALID) ) return -1;
-  if( NEVER(pCur->pPage->leaf==0) ) return -1;
-
-  n = pCur->pPage->nCell;
-  for(i=0; i<pCur->iPage; i++){
-    n *= pCur->apPage[i]->nCell;
-  }
-  return n;
-}
-
-/*
-** Advance the cursor to the next entry in the database. 
-** Return value:
-**
-**    SQLITE_OK        success
-**    SQLITE_DONE      cursor is already pointing at the last element
-**    otherwise        some kind of error occurred
-**
-** The main entry point is tdsqlite3BtreeNext().  That routine is optimized
-** for the common case of merely incrementing the cell counter BtCursor.aiIdx
-** to the next cell on the current page.  The (slower) btreeNext() helper
-** routine is called when it is necessary to move to a different page or
-** to restore the cursor.
-**
-** If bit 0x01 of the F argument in tdsqlite3BtreeNext(C,F) is 1, then the
-** cursor corresponds to an SQL index and this routine could have been
-** skipped if the SQL index had been a unique index.  The F argument
-** is a hint to the implement.  SQLite btree implementation does not use
-** this hint, but COMDB2 does.
-*/
-static SQLITE_NOINLINE int btreeNext(BtCursor *pCur){
-  int rc;
-  int idx;
-  MemPage *pPage;
-
-  assert( cursorOwnsBtShared(pCur) );
-  if( pCur->eState!=CURSOR_VALID ){
-    assert( (pCur->curFlags & BTCF_ValidOvfl)==0 );
-    rc = restoreCursorPosition(pCur);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    if( CURSOR_INVALID==pCur->eState ){
-      return SQLITE_DONE;
-    }
-    if( pCur->eState==CURSOR_SKIPNEXT ){
-      pCur->eState = CURSOR_VALID;
-      if( pCur->skipNext>0 ) return SQLITE_OK;
-    }
-  }
-
-  pPage = pCur->pPage;
-  idx = ++pCur->ix;
-  if( !pPage->isInit ){
-    /* The only known way for this to happen is for there to be a
-    ** recursive SQL function that does a DELETE operation as part of a
-    ** SELECT which deletes content out from under an active cursor
-    ** in a corrupt database file where the table being DELETE-ed from
-    ** has pages in common with the table being queried.  See TH3
-    ** module cov1/btree78.test testcase 220 (2018-06-08) for an
-    ** example. */
-    return SQLITE_CORRUPT_BKPT;
-  }
-
-  /* If the database file is corrupt, it is possible for the value of idx 
-  ** to be invalid here. This can only occur if a second cursor modifies
-  ** the page while cursor pCur is holding a reference to it. Which can
-  ** only happen if the database is corrupt in such a way as to link the
-  ** page into more than one b-tree structure.
-  **
-  ** Update 2019-12-23: appears to long longer be possible after the
-  ** addition of anotherValidCursor() condition on balance_deeper().  */
-  harmless( idx>pPage->nCell );
-
-  if( idx>=pPage->nCell ){
-    if( !pPage->leaf ){
-      rc = moveToChild(pCur, get4byte(&pPage->aData[pPage->hdrOffset+8]));
-      if( rc ) return rc;
-      return moveToLeftmost(pCur);
-    }
-    do{
-      if( pCur->iPage==0 ){
-        pCur->eState = CURSOR_INVALID;
-        return SQLITE_DONE;
-      }
-      moveToParent(pCur);
-      pPage = pCur->pPage;
-    }while( pCur->ix>=pPage->nCell );
-    if( pPage->intKey ){
-      return tdsqlite3BtreeNext(pCur, 0);
-    }else{
-      return SQLITE_OK;
-    }
-  }
-  if( pPage->leaf ){
-    return SQLITE_OK;
-  }else{
-    return moveToLeftmost(pCur);
-  }
-}
-SQLITE_PRIVATE int tdsqlite3BtreeNext(BtCursor *pCur, int flags){
-  MemPage *pPage;
-  UNUSED_PARAMETER( flags );  /* Used in COMDB2 but not native SQLite */
-  assert( cursorOwnsBtShared(pCur) );
-  assert( flags==0 || flags==1 );
-  pCur->info.nSize = 0;
-  pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl);
-  if( pCur->eState!=CURSOR_VALID ) return btreeNext(pCur);
-  pPage = pCur->pPage;
-  if( (++pCur->ix)>=pPage->nCell ){
-    pCur->ix--;
-    return btreeNext(pCur);
-  }
-  if( pPage->leaf ){
-    return SQLITE_OK;
-  }else{
-    return moveToLeftmost(pCur);
-  }
-}
-
-/*
-** Step the cursor to the back to the previous entry in the database.
-** Return values:
-**
-**     SQLITE_OK     success
-**     SQLITE_DONE   the cursor is already on the first element of the table
-**     otherwise     some kind of error occurred
-**
-** The main entry point is tdsqlite3BtreePrevious().  That routine is optimized
-** for the common case of merely decrementing the cell counter BtCursor.aiIdx
-** to the previous cell on the current page.  The (slower) btreePrevious()
-** helper routine is called when it is necessary to move to a different page
-** or to restore the cursor.
-**
-** If bit 0x01 of the F argument to tdsqlite3BtreePrevious(C,F) is 1, then
-** the cursor corresponds to an SQL index and this routine could have been
-** skipped if the SQL index had been a unique index.  The F argument is a
-** hint to the implement.  The native SQLite btree implementation does not
-** use this hint, but COMDB2 does.
-*/
-static SQLITE_NOINLINE int btreePrevious(BtCursor *pCur){
-  int rc;
-  MemPage *pPage;
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( (pCur->curFlags & (BTCF_AtLast|BTCF_ValidOvfl|BTCF_ValidNKey))==0 );
-  assert( pCur->info.nSize==0 );
-  if( pCur->eState!=CURSOR_VALID ){
-    rc = restoreCursorPosition(pCur);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    if( CURSOR_INVALID==pCur->eState ){
-      return SQLITE_DONE;
-    }
-    if( CURSOR_SKIPNEXT==pCur->eState ){
-      pCur->eState = CURSOR_VALID;
-      if( pCur->skipNext<0 ) return SQLITE_OK;
-    }
-  }
-
-  pPage = pCur->pPage;
-  assert( pPage->isInit );
-  if( !pPage->leaf ){
-    int idx = pCur->ix;
-    rc = moveToChild(pCur, get4byte(findCell(pPage, idx)));
-    if( rc ) return rc;
-    rc = moveToRightmost(pCur);
-  }else{
-    while( pCur->ix==0 ){
-      if( pCur->iPage==0 ){
-        pCur->eState = CURSOR_INVALID;
-        return SQLITE_DONE;
-      }
-      moveToParent(pCur);
-    }
-    assert( pCur->info.nSize==0 );
-    assert( (pCur->curFlags & (BTCF_ValidOvfl))==0 );
-
-    pCur->ix--;
-    pPage = pCur->pPage;
-    if( pPage->intKey && !pPage->leaf ){
-      rc = tdsqlite3BtreePrevious(pCur, 0);
-    }else{
-      rc = SQLITE_OK;
-    }
-  }
-  return rc;
-}
-SQLITE_PRIVATE int tdsqlite3BtreePrevious(BtCursor *pCur, int flags){
-  assert( cursorOwnsBtShared(pCur) );
-  assert( flags==0 || flags==1 );
-  UNUSED_PARAMETER( flags );  /* Used in COMDB2 but not native SQLite */
-  pCur->curFlags &= ~(BTCF_AtLast|BTCF_ValidOvfl|BTCF_ValidNKey);
-  pCur->info.nSize = 0;
-  if( pCur->eState!=CURSOR_VALID
-   || pCur->ix==0
-   || pCur->pPage->leaf==0
-  ){
-    return btreePrevious(pCur);
-  }
-  pCur->ix--;
-  return SQLITE_OK;
-}
-
-/*
-** Allocate a new page from the database file.
-**
-** The new page is marked as dirty.  (In other words, tdsqlite3PagerWrite()
-** has already been called on the new page.)  The new page has also
-** been referenced and the calling routine is responsible for calling
-** tdsqlite3PagerUnref() on the new page when it is done.
-**
-** SQLITE_OK is returned on success.  Any other return value indicates
-** an error.  *ppPage is set to NULL in the event of an error.
-**
-** If the "nearby" parameter is not 0, then an effort is made to 
-** locate a page close to the page number "nearby".  This can be used in an
-** attempt to keep related pages close to each other in the database file,
-** which in turn can make database access faster.
-**
-** If the eMode parameter is BTALLOC_EXACT and the nearby page exists
-** anywhere on the free-list, then it is guaranteed to be returned.  If
-** eMode is BTALLOC_LT then the page returned will be less than or equal
-** to nearby if any such page exists.  If eMode is BTALLOC_ANY then there
-** are no restrictions on which page is returned.
-*/
-static int allocateBtreePage(
-  BtShared *pBt,         /* The btree */
-  MemPage **ppPage,      /* Store pointer to the allocated page here */
-  Pgno *pPgno,           /* Store the page number here */
-  Pgno nearby,           /* Search for a page near this one */
-  u8 eMode               /* BTALLOC_EXACT, BTALLOC_LT, or BTALLOC_ANY */
-){
-  MemPage *pPage1;
-  int rc;
-  u32 n;     /* Number of pages on the freelist */
-  u32 k;     /* Number of leaves on the trunk of the freelist */
-  MemPage *pTrunk = 0;
-  MemPage *pPrevTrunk = 0;
-  Pgno mxPage;     /* Total size of the database file */
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( eMode==BTALLOC_ANY || (nearby>0 && IfNotOmitAV(pBt->autoVacuum)) );
-  pPage1 = pBt->pPage1;
-  mxPage = btreePagecount(pBt);
-  /* EVIDENCE-OF: R-05119-02637 The 4-byte big-endian integer at offset 36
-  ** stores stores the total number of pages on the freelist. */
-  n = get4byte(&pPage1->aData[36]);
-  testcase( n==mxPage-1 );
-  if( n>=mxPage ){
-    return SQLITE_CORRUPT_BKPT;
-  }
-  if( n>0 ){
-    /* There are pages on the freelist.  Reuse one of those pages. */
-    Pgno iTrunk;
-    u8 searchList = 0; /* If the free-list must be searched for 'nearby' */
-    u32 nSearch = 0;   /* Count of the number of search attempts */
-    
-    /* If eMode==BTALLOC_EXACT and a query of the pointer-map
-    ** shows that the page 'nearby' is somewhere on the free-list, then
-    ** the entire-list will be searched for that page.
-    */
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( eMode==BTALLOC_EXACT ){
-      if( nearby<=mxPage ){
-        u8 eType;
-        assert( nearby>0 );
-        assert( pBt->autoVacuum );
-        rc = ptrmapGet(pBt, nearby, &eType, 0);
-        if( rc ) return rc;
-        if( eType==PTRMAP_FREEPAGE ){
-          searchList = 1;
-        }
-      }
-    }else if( eMode==BTALLOC_LE ){
-      searchList = 1;
-    }
-#endif
-
-    /* Decrement the free-list count by 1. Set iTrunk to the index of the
-    ** first free-list trunk page. iPrevTrunk is initially 1.
-    */
-    rc = tdsqlite3PagerWrite(pPage1->pDbPage);
-    if( rc ) return rc;
-    put4byte(&pPage1->aData[36], n-1);
-
-    /* The code within this loop is run only once if the 'searchList' variable
-    ** is not true. Otherwise, it runs once for each trunk-page on the
-    ** free-list until the page 'nearby' is located (eMode==BTALLOC_EXACT)
-    ** or until a page less than 'nearby' is located (eMode==BTALLOC_LT)
-    */
-    do {
-      pPrevTrunk = pTrunk;
-      if( pPrevTrunk ){
-        /* EVIDENCE-OF: R-01506-11053 The first integer on a freelist trunk page
-        ** is the page number of the next freelist trunk page in the list or
-        ** zero if this is the last freelist trunk page. */
-        iTrunk = get4byte(&pPrevTrunk->aData[0]);
-      }else{
-        /* EVIDENCE-OF: R-59841-13798 The 4-byte big-endian integer at offset 32
-        ** stores the page number of the first page of the freelist, or zero if
-        ** the freelist is empty. */
-        iTrunk = get4byte(&pPage1->aData[32]);
-      }
-      testcase( iTrunk==mxPage );
-      if( iTrunk>mxPage || nSearch++ > n ){
-        rc = SQLITE_CORRUPT_PGNO(pPrevTrunk ? pPrevTrunk->pgno : 1);
-      }else{
-        rc = btreeGetUnusedPage(pBt, iTrunk, &pTrunk, 0);
-      }
-      if( rc ){
-        pTrunk = 0;
-        goto end_allocate_page;
-      }
-      assert( pTrunk!=0 );
-      assert( pTrunk->aData!=0 );
-      /* EVIDENCE-OF: R-13523-04394 The second integer on a freelist trunk page
-      ** is the number of leaf page pointers to follow. */
-      k = get4byte(&pTrunk->aData[4]);
-      if( k==0 && !searchList ){
-        /* The trunk has no leaves and the list is not being searched. 
-        ** So extract the trunk page itself and use it as the newly 
-        ** allocated page */
-        assert( pPrevTrunk==0 );
-        rc = tdsqlite3PagerWrite(pTrunk->pDbPage);
-        if( rc ){
-          goto end_allocate_page;
-        }
-        *pPgno = iTrunk;
-        memcpy(&pPage1->aData[32], &pTrunk->aData[0], 4);
-        *ppPage = pTrunk;
-        pTrunk = 0;
-        TRACE(("ALLOCATE: %d trunk - %d free pages left\n", *pPgno, n-1));
-      }else if( k>(u32)(pBt->usableSize/4 - 2) ){
-        /* Value of k is out of range.  Database corruption */
-        rc = SQLITE_CORRUPT_PGNO(iTrunk);
-        goto end_allocate_page;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-      }else if( searchList 
-            && (nearby==iTrunk || (iTrunk<nearby && eMode==BTALLOC_LE)) 
-      ){
-        /* The list is being searched and this trunk page is the page
-        ** to allocate, regardless of whether it has leaves.
-        */
-        *pPgno = iTrunk;
-        *ppPage = pTrunk;
-        searchList = 0;
-        rc = tdsqlite3PagerWrite(pTrunk->pDbPage);
-        if( rc ){
-          goto end_allocate_page;
-        }
-        if( k==0 ){
-          if( !pPrevTrunk ){
-            memcpy(&pPage1->aData[32], &pTrunk->aData[0], 4);
-          }else{
-            rc = tdsqlite3PagerWrite(pPrevTrunk->pDbPage);
-            if( rc!=SQLITE_OK ){
-              goto end_allocate_page;
-            }
-            memcpy(&pPrevTrunk->aData[0], &pTrunk->aData[0], 4);
-          }
-        }else{
-          /* The trunk page is required by the caller but it contains 
-          ** pointers to free-list leaves. The first leaf becomes a trunk
-          ** page in this case.
-          */
-          MemPage *pNewTrunk;
-          Pgno iNewTrunk = get4byte(&pTrunk->aData[8]);
-          if( iNewTrunk>mxPage ){ 
-            rc = SQLITE_CORRUPT_PGNO(iTrunk);
-            goto end_allocate_page;
-          }
-          testcase( iNewTrunk==mxPage );
-          rc = btreeGetUnusedPage(pBt, iNewTrunk, &pNewTrunk, 0);
-          if( rc!=SQLITE_OK ){
-            goto end_allocate_page;
-          }
-          rc = tdsqlite3PagerWrite(pNewTrunk->pDbPage);
-          if( rc!=SQLITE_OK ){
-            releasePage(pNewTrunk);
-            goto end_allocate_page;
-          }
-          memcpy(&pNewTrunk->aData[0], &pTrunk->aData[0], 4);
-          put4byte(&pNewTrunk->aData[4], k-1);
-          memcpy(&pNewTrunk->aData[8], &pTrunk->aData[12], (k-1)*4);
-          releasePage(pNewTrunk);
-          if( !pPrevTrunk ){
-            assert( tdsqlite3PagerIswriteable(pPage1->pDbPage) );
-            put4byte(&pPage1->aData[32], iNewTrunk);
-          }else{
-            rc = tdsqlite3PagerWrite(pPrevTrunk->pDbPage);
-            if( rc ){
-              goto end_allocate_page;
-            }
-            put4byte(&pPrevTrunk->aData[0], iNewTrunk);
-          }
-        }
-        pTrunk = 0;
-        TRACE(("ALLOCATE: %d trunk - %d free pages left\n", *pPgno, n-1));
-#endif
-      }else if( k>0 ){
-        /* Extract a leaf from the trunk */
-        u32 closest;
-        Pgno iPage;
-        unsigned char *aData = pTrunk->aData;
-        if( nearby>0 ){
-          u32 i;
-          closest = 0;
-          if( eMode==BTALLOC_LE ){
-            for(i=0; i<k; i++){
-              iPage = get4byte(&aData[8+i*4]);
-              if( iPage<=nearby ){
-                closest = i;
-                break;
-              }
-            }
-          }else{
-            int dist;
-            dist = tdsqlite3AbsInt32(get4byte(&aData[8]) - nearby);
-            for(i=1; i<k; i++){
-              int d2 = tdsqlite3AbsInt32(get4byte(&aData[8+i*4]) - nearby);
-              if( d2<dist ){
-                closest = i;
-                dist = d2;
-              }
-            }
-          }
-        }else{
-          closest = 0;
-        }
-
-        iPage = get4byte(&aData[8+closest*4]);
-        testcase( iPage==mxPage );
-        if( iPage>mxPage ){
-          rc = SQLITE_CORRUPT_PGNO(iTrunk);
-          goto end_allocate_page;
-        }
-        testcase( iPage==mxPage );
-        if( !searchList 
-         || (iPage==nearby || (iPage<nearby && eMode==BTALLOC_LE)) 
-        ){
-          int noContent;
-          *pPgno = iPage;
-          TRACE(("ALLOCATE: %d was leaf %d of %d on trunk %d"
-                 ": %d more free pages\n",
-                 *pPgno, closest+1, k, pTrunk->pgno, n-1));
-          rc = tdsqlite3PagerWrite(pTrunk->pDbPage);
-          if( rc ) goto end_allocate_page;
-          if( closest<k-1 ){
-            memcpy(&aData[8+closest*4], &aData[4+k*4], 4);
-          }
-          put4byte(&aData[4], k-1);
-          noContent = !btreeGetHasContent(pBt, *pPgno)? PAGER_GET_NOCONTENT : 0;
-          rc = btreeGetUnusedPage(pBt, *pPgno, ppPage, noContent);
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3PagerWrite((*ppPage)->pDbPage);
-            if( rc!=SQLITE_OK ){
-              releasePage(*ppPage);
-              *ppPage = 0;
-            }
-          }
-          searchList = 0;
-        }
-      }
-      releasePage(pPrevTrunk);
-      pPrevTrunk = 0;
-    }while( searchList );
-  }else{
-    /* There are no pages on the freelist, so append a new page to the
-    ** database image.
-    **
-    ** Normally, new pages allocated by this block can be requested from the
-    ** pager layer with the 'no-content' flag set. This prevents the pager
-    ** from trying to read the pages content from disk. However, if the
-    ** current transaction has already run one or more incremental-vacuum
-    ** steps, then the page we are about to allocate may contain content
-    ** that is required in the event of a rollback. In this case, do
-    ** not set the no-content flag. This causes the pager to load and journal
-    ** the current page content before overwriting it.
-    **
-    ** Note that the pager will not actually attempt to load or journal 
-    ** content for any page that really does lie past the end of the database
-    ** file on disk. So the effects of disabling the no-content optimization
-    ** here are confined to those pages that lie between the end of the
-    ** database image and the end of the database file.
-    */
-    int bNoContent = (0==IfNotOmitAV(pBt->bDoTruncate))? PAGER_GET_NOCONTENT:0;
-
-    rc = tdsqlite3PagerWrite(pBt->pPage1->pDbPage);
-    if( rc ) return rc;
-    pBt->nPage++;
-    if( pBt->nPage==PENDING_BYTE_PAGE(pBt) ) pBt->nPage++;
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( pBt->autoVacuum && PTRMAP_ISPAGE(pBt, pBt->nPage) ){
-      /* If *pPgno refers to a pointer-map page, allocate two new pages
-      ** at the end of the file instead of one. The first allocated page
-      ** becomes a new pointer-map page, the second is used by the caller.
-      */
-      MemPage *pPg = 0;
-      TRACE(("ALLOCATE: %d from end of file (pointer-map page)\n", pBt->nPage));
-      assert( pBt->nPage!=PENDING_BYTE_PAGE(pBt) );
-      rc = btreeGetUnusedPage(pBt, pBt->nPage, &pPg, bNoContent);
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3PagerWrite(pPg->pDbPage);
-        releasePage(pPg);
-      }
-      if( rc ) return rc;
-      pBt->nPage++;
-      if( pBt->nPage==PENDING_BYTE_PAGE(pBt) ){ pBt->nPage++; }
-    }
-#endif
-    put4byte(28 + (u8*)pBt->pPage1->aData, pBt->nPage);
-    *pPgno = pBt->nPage;
-
-    assert( *pPgno!=PENDING_BYTE_PAGE(pBt) );
-    rc = btreeGetUnusedPage(pBt, *pPgno, ppPage, bNoContent);
-    if( rc ) return rc;
-    rc = tdsqlite3PagerWrite((*ppPage)->pDbPage);
-    if( rc!=SQLITE_OK ){
-      releasePage(*ppPage);
-      *ppPage = 0;
-    }
-    TRACE(("ALLOCATE: %d from end of file\n", *pPgno));
-  }
-
-  assert( CORRUPT_DB || *pPgno!=PENDING_BYTE_PAGE(pBt) );
-
-end_allocate_page:
-  releasePage(pTrunk);
-  releasePage(pPrevTrunk);
-  assert( rc!=SQLITE_OK || tdsqlite3PagerPageRefcount((*ppPage)->pDbPage)<=1 );
-  assert( rc!=SQLITE_OK || (*ppPage)->isInit==0 );
-  return rc;
-}
-
-/*
-** This function is used to add page iPage to the database file free-list. 
-** It is assumed that the page is not already a part of the free-list.
-**
-** The value passed as the second argument to this function is optional.
-** If the caller happens to have a pointer to the MemPage object 
-** corresponding to page iPage handy, it may pass it as the second value. 
-** Otherwise, it may pass NULL.
-**
-** If a pointer to a MemPage object is passed as the second argument,
-** its reference count is not altered by this function.
-*/
-static int freePage2(BtShared *pBt, MemPage *pMemPage, Pgno iPage){
-  MemPage *pTrunk = 0;                /* Free-list trunk page */
-  Pgno iTrunk = 0;                    /* Page number of free-list trunk page */ 
-  MemPage *pPage1 = pBt->pPage1;      /* Local reference to page 1 */
-  MemPage *pPage;                     /* Page being freed. May be NULL. */
-  int rc;                             /* Return Code */
-  u32 nFree;                          /* Initial number of pages on free-list */
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( CORRUPT_DB || iPage>1 );
-  assert( !pMemPage || pMemPage->pgno==iPage );
-
-  if( iPage<2 || iPage>pBt->nPage ){
-    return SQLITE_CORRUPT_BKPT;
-  }
-  if( pMemPage ){
-    pPage = pMemPage;
-    tdsqlite3PagerRef(pPage->pDbPage);
-  }else{
-    pPage = btreePageLookup(pBt, iPage);
-  }
-
-  /* Increment the free page count on pPage1 */
-  rc = tdsqlite3PagerWrite(pPage1->pDbPage);
-  if( rc ) goto freepage_out;
-  nFree = get4byte(&pPage1->aData[36]);
-  put4byte(&pPage1->aData[36], nFree+1);
-
-  if( pBt->btsFlags & BTS_SECURE_DELETE ){
-    /* If the secure_delete option is enabled, then
-    ** always fully overwrite deleted information with zeros.
-    */
-    if( (!pPage && ((rc = btreeGetPage(pBt, iPage, &pPage, 0))!=0) )
-     ||            ((rc = tdsqlite3PagerWrite(pPage->pDbPage))!=0)
-    ){
-      goto freepage_out;
-    }
-    memset(pPage->aData, 0, pPage->pBt->pageSize);
-  }
-
-  /* If the database supports auto-vacuum, write an entry in the pointer-map
-  ** to indicate that the page is free.
-  */
-  if( ISAUTOVACUUM ){
-    ptrmapPut(pBt, iPage, PTRMAP_FREEPAGE, 0, &rc);
-    if( rc ) goto freepage_out;
-  }
-
-  /* Now manipulate the actual database free-list structure. There are two
-  ** possibilities. If the free-list is currently empty, or if the first
-  ** trunk page in the free-list is full, then this page will become a
-  ** new free-list trunk page. Otherwise, it will become a leaf of the
-  ** first trunk page in the current free-list. This block tests if it
-  ** is possible to add the page as a new free-list leaf.
-  */
-  if( nFree!=0 ){
-    u32 nLeaf;                /* Initial number of leaf cells on trunk page */
-
-    iTrunk = get4byte(&pPage1->aData[32]);
-    rc = btreeGetPage(pBt, iTrunk, &pTrunk, 0);
-    if( rc!=SQLITE_OK ){
-      goto freepage_out;
-    }
-
-    nLeaf = get4byte(&pTrunk->aData[4]);
-    assert( pBt->usableSize>32 );
-    if( nLeaf > (u32)pBt->usableSize/4 - 2 ){
-      rc = SQLITE_CORRUPT_BKPT;
-      goto freepage_out;
-    }
-    if( nLeaf < (u32)pBt->usableSize/4 - 8 ){
-      /* In this case there is room on the trunk page to insert the page
-      ** being freed as a new leaf.
-      **
-      ** Note that the trunk page is not really full until it contains
-      ** usableSize/4 - 2 entries, not usableSize/4 - 8 entries as we have
-      ** coded.  But due to a coding error in versions of SQLite prior to
-      ** 3.6.0, databases with freelist trunk pages holding more than
-      ** usableSize/4 - 8 entries will be reported as corrupt.  In order
-      ** to maintain backwards compatibility with older versions of SQLite,
-      ** we will continue to restrict the number of entries to usableSize/4 - 8
-      ** for now.  At some point in the future (once everyone has upgraded
-      ** to 3.6.0 or later) we should consider fixing the conditional above
-      ** to read "usableSize/4-2" instead of "usableSize/4-8".
-      **
-      ** EVIDENCE-OF: R-19920-11576 However, newer versions of SQLite still
-      ** avoid using the last six entries in the freelist trunk page array in
-      ** order that database files created by newer versions of SQLite can be
-      ** read by older versions of SQLite.
-      */
-      rc = tdsqlite3PagerWrite(pTrunk->pDbPage);
-      if( rc==SQLITE_OK ){
-        put4byte(&pTrunk->aData[4], nLeaf+1);
-        put4byte(&pTrunk->aData[8+nLeaf*4], iPage);
-        if( pPage && (pBt->btsFlags & BTS_SECURE_DELETE)==0 ){
-          tdsqlite3PagerDontWrite(pPage->pDbPage);
-        }
-        rc = btreeSetHasContent(pBt, iPage);
-      }
-      TRACE(("FREE-PAGE: %d leaf on trunk page %d\n",pPage->pgno,pTrunk->pgno));
-      goto freepage_out;
-    }
-  }
-
-  /* If control flows to this point, then it was not possible to add the
-  ** the page being freed as a leaf page of the first trunk in the free-list.
-  ** Possibly because the free-list is empty, or possibly because the 
-  ** first trunk in the free-list is full. Either way, the page being freed
-  ** will become the new first trunk page in the free-list.
-  */
-  if( pPage==0 && SQLITE_OK!=(rc = btreeGetPage(pBt, iPage, &pPage, 0)) ){
-    goto freepage_out;
-  }
-  rc = tdsqlite3PagerWrite(pPage->pDbPage);
-  if( rc!=SQLITE_OK ){
-    goto freepage_out;
-  }
-  put4byte(pPage->aData, iTrunk);
-  put4byte(&pPage->aData[4], 0);
-  put4byte(&pPage1->aData[32], iPage);
-  TRACE(("FREE-PAGE: %d new trunk page replacing %d\n", pPage->pgno, iTrunk));
-
-freepage_out:
-  if( pPage ){
-    pPage->isInit = 0;
-  }
-  releasePage(pPage);
-  releasePage(pTrunk);
-  return rc;
-}
-static void freePage(MemPage *pPage, int *pRC){
-  if( (*pRC)==SQLITE_OK ){
-    *pRC = freePage2(pPage->pBt, pPage, pPage->pgno);
-  }
-}
-
-/*
-** Free any overflow pages associated with the given Cell.  Store
-** size information about the cell in pInfo.
-*/
-static int clearCell(
-  MemPage *pPage,          /* The page that contains the Cell */
-  unsigned char *pCell,    /* First byte of the Cell */
-  CellInfo *pInfo          /* Size information about the cell */
-){
-  BtShared *pBt;
-  Pgno ovflPgno;
-  int rc;
-  int nOvfl;
-  u32 ovflPageSize;
-
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  pPage->xParseCell(pPage, pCell, pInfo);
-  if( pInfo->nLocal==pInfo->nPayload ){
-    return SQLITE_OK;  /* No overflow pages. Return without doing anything */
-  }
-  testcase( pCell + pInfo->nSize == pPage->aDataEnd );
-  testcase( pCell + (pInfo->nSize-1) == pPage->aDataEnd );
-  if( pCell + pInfo->nSize > pPage->aDataEnd ){
-    /* Cell extends past end of page */
-    return SQLITE_CORRUPT_PAGE(pPage);
-  }
-  ovflPgno = get4byte(pCell + pInfo->nSize - 4);
-  pBt = pPage->pBt;
-  assert( pBt->usableSize > 4 );
-  ovflPageSize = pBt->usableSize - 4;
-  nOvfl = (pInfo->nPayload - pInfo->nLocal + ovflPageSize - 1)/ovflPageSize;
-  assert( nOvfl>0 || 
-    (CORRUPT_DB && (pInfo->nPayload + ovflPageSize)<ovflPageSize)
-  );
-  while( nOvfl-- ){
-    Pgno iNext = 0;
-    MemPage *pOvfl = 0;
-    if( ovflPgno<2 || ovflPgno>btreePagecount(pBt) ){
-      /* 0 is not a legal page number and page 1 cannot be an 
-      ** overflow page. Therefore if ovflPgno<2 or past the end of the 
-      ** file the database must be corrupt. */
-      return SQLITE_CORRUPT_BKPT;
-    }
-    if( nOvfl ){
-      rc = getOverflowPage(pBt, ovflPgno, &pOvfl, &iNext);
-      if( rc ) return rc;
-    }
-
-    if( ( pOvfl || ((pOvfl = btreePageLookup(pBt, ovflPgno))!=0) )
-     && tdsqlite3PagerPageRefcount(pOvfl->pDbPage)!=1
-    ){
-      /* There is no reason any cursor should have an outstanding reference 
-      ** to an overflow page belonging to a cell that is being deleted/updated.
-      ** So if there exists more than one reference to this page, then it 
-      ** must not really be an overflow page and the database must be corrupt. 
-      ** It is helpful to detect this before calling freePage2(), as 
-      ** freePage2() may zero the page contents if secure-delete mode is
-      ** enabled. If this 'overflow' page happens to be a page that the
-      ** caller is iterating through or using in some other way, this
-      ** can be problematic.
-      */
-      rc = SQLITE_CORRUPT_BKPT;
-    }else{
-      rc = freePage2(pBt, pOvfl, ovflPgno);
-    }
-
-    if( pOvfl ){
-      tdsqlite3PagerUnref(pOvfl->pDbPage);
-    }
-    if( rc ) return rc;
-    ovflPgno = iNext;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Create the byte sequence used to represent a cell on page pPage
-** and write that byte sequence into pCell[].  Overflow pages are
-** allocated and filled in as necessary.  The calling procedure
-** is responsible for making sure sufficient space has been allocated
-** for pCell[].
-**
-** Note that pCell does not necessary need to point to the pPage->aData
-** area.  pCell might point to some temporary storage.  The cell will
-** be constructed in this temporary area then copied into pPage->aData
-** later.
-*/
-static int fillInCell(
-  MemPage *pPage,                /* The page that contains the cell */
-  unsigned char *pCell,          /* Complete text of the cell */
-  const BtreePayload *pX,        /* Payload with which to construct the cell */
-  int *pnSize                    /* Write cell size here */
-){
-  int nPayload;
-  const u8 *pSrc;
-  int nSrc, n, rc, mn;
-  int spaceLeft;
-  MemPage *pToRelease;
-  unsigned char *pPrior;
-  unsigned char *pPayload;
-  BtShared *pBt;
-  Pgno pgnoOvfl;
-  int nHeader;
-
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-
-  /* pPage is not necessarily writeable since pCell might be auxiliary
-  ** buffer space that is separate from the pPage buffer area */
-  assert( pCell<pPage->aData || pCell>=&pPage->aData[pPage->pBt->pageSize]
-            || tdsqlite3PagerIswriteable(pPage->pDbPage) );
-
-  /* Fill in the header. */
-  nHeader = pPage->childPtrSize;
-  if( pPage->intKey ){
-    nPayload = pX->nData + pX->nZero;
-    pSrc = pX->pData;
-    nSrc = pX->nData;
-    assert( pPage->intKeyLeaf ); /* fillInCell() only called for leaves */
-    nHeader += putVarint32(&pCell[nHeader], nPayload);
-    nHeader += putVarint(&pCell[nHeader], *(u64*)&pX->nKey);
-  }else{
-    assert( pX->nKey<=0x7fffffff && pX->pKey!=0 );
-    nSrc = nPayload = (int)pX->nKey;
-    pSrc = pX->pKey;
-    nHeader += putVarint32(&pCell[nHeader], nPayload);
-  }
-  
-  /* Fill in the payload */
-  pPayload = &pCell[nHeader];
-  if( nPayload<=pPage->maxLocal ){
-    /* This is the common case where everything fits on the btree page
-    ** and no overflow pages are required. */
-    n = nHeader + nPayload;
-    testcase( n==3 );
-    testcase( n==4 );
-    if( n<4 ) n = 4;
-    *pnSize = n;
-    assert( nSrc<=nPayload );
-    testcase( nSrc<nPayload );
-    memcpy(pPayload, pSrc, nSrc);
-    memset(pPayload+nSrc, 0, nPayload-nSrc);
-    return SQLITE_OK;
-  }
-
-  /* If we reach this point, it means that some of the content will need
-  ** to spill onto overflow pages.
-  */
-  mn = pPage->minLocal;
-  n = mn + (nPayload - mn) % (pPage->pBt->usableSize - 4);
-  testcase( n==pPage->maxLocal );
-  testcase( n==pPage->maxLocal+1 );
-  if( n > pPage->maxLocal ) n = mn;
-  spaceLeft = n;
-  *pnSize = n + nHeader + 4;
-  pPrior = &pCell[nHeader+n];
-  pToRelease = 0;
-  pgnoOvfl = 0;
-  pBt = pPage->pBt;
-
-  /* At this point variables should be set as follows:
-  **
-  **   nPayload           Total payload size in bytes
-  **   pPayload           Begin writing payload here
-  **   spaceLeft          Space available at pPayload.  If nPayload>spaceLeft,
-  **                      that means content must spill into overflow pages.
-  **   *pnSize            Size of the local cell (not counting overflow pages)
-  **   pPrior             Where to write the pgno of the first overflow page
-  **
-  ** Use a call to btreeParseCellPtr() to verify that the values above
-  ** were computed correctly.
-  */
-#ifdef SQLITE_DEBUG
-  {
-    CellInfo info;
-    pPage->xParseCell(pPage, pCell, &info);
-    assert( nHeader==(int)(info.pPayload - pCell) );
-    assert( info.nKey==pX->nKey );
-    assert( *pnSize == info.nSize );
-    assert( spaceLeft == info.nLocal );
-  }
-#endif
-
-  /* Write the payload into the local Cell and any extra into overflow pages */
-  while( 1 ){
-    n = nPayload;
-    if( n>spaceLeft ) n = spaceLeft;
-
-    /* If pToRelease is not zero than pPayload points into the data area
-    ** of pToRelease.  Make sure pToRelease is still writeable. */
-    assert( pToRelease==0 || tdsqlite3PagerIswriteable(pToRelease->pDbPage) );
-
-    /* If pPayload is part of the data area of pPage, then make sure pPage
-    ** is still writeable */
-    assert( pPayload<pPage->aData || pPayload>=&pPage->aData[pBt->pageSize]
-            || tdsqlite3PagerIswriteable(pPage->pDbPage) );
-
-    if( nSrc>=n ){
-      memcpy(pPayload, pSrc, n);
-    }else if( nSrc>0 ){
-      n = nSrc;
-      memcpy(pPayload, pSrc, n);
-    }else{
-      memset(pPayload, 0, n);
-    }
-    nPayload -= n;
-    if( nPayload<=0 ) break;
-    pPayload += n;
-    pSrc += n;
-    nSrc -= n;
-    spaceLeft -= n;
-    if( spaceLeft==0 ){
-      MemPage *pOvfl = 0;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-      Pgno pgnoPtrmap = pgnoOvfl; /* Overflow page pointer-map entry page */
-      if( pBt->autoVacuum ){
-        do{
-          pgnoOvfl++;
-        } while( 
-          PTRMAP_ISPAGE(pBt, pgnoOvfl) || pgnoOvfl==PENDING_BYTE_PAGE(pBt) 
-        );
-      }
-#endif
-      rc = allocateBtreePage(pBt, &pOvfl, &pgnoOvfl, pgnoOvfl, 0);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-      /* If the database supports auto-vacuum, and the second or subsequent
-      ** overflow page is being allocated, add an entry to the pointer-map
-      ** for that page now. 
-      **
-      ** If this is the first overflow page, then write a partial entry 
-      ** to the pointer-map. If we write nothing to this pointer-map slot,
-      ** then the optimistic overflow chain processing in clearCell()
-      ** may misinterpret the uninitialized values and delete the
-      ** wrong pages from the database.
-      */
-      if( pBt->autoVacuum && rc==SQLITE_OK ){
-        u8 eType = (pgnoPtrmap?PTRMAP_OVERFLOW2:PTRMAP_OVERFLOW1);
-        ptrmapPut(pBt, pgnoOvfl, eType, pgnoPtrmap, &rc);
-        if( rc ){
-          releasePage(pOvfl);
-        }
-      }
-#endif
-      if( rc ){
-        releasePage(pToRelease);
-        return rc;
-      }
-
-      /* If pToRelease is not zero than pPrior points into the data area
-      ** of pToRelease.  Make sure pToRelease is still writeable. */
-      assert( pToRelease==0 || tdsqlite3PagerIswriteable(pToRelease->pDbPage) );
-
-      /* If pPrior is part of the data area of pPage, then make sure pPage
-      ** is still writeable */
-      assert( pPrior<pPage->aData || pPrior>=&pPage->aData[pBt->pageSize]
-            || tdsqlite3PagerIswriteable(pPage->pDbPage) );
-
-      put4byte(pPrior, pgnoOvfl);
-      releasePage(pToRelease);
-      pToRelease = pOvfl;
-      pPrior = pOvfl->aData;
-      put4byte(pPrior, 0);
-      pPayload = &pOvfl->aData[4];
-      spaceLeft = pBt->usableSize - 4;
-    }
-  }
-  releasePage(pToRelease);
-  return SQLITE_OK;
-}
-
-/*
-** Remove the i-th cell from pPage.  This routine effects pPage only.
-** The cell content is not freed or deallocated.  It is assumed that
-** the cell content has been copied someplace else.  This routine just
-** removes the reference to the cell from pPage.
-**
-** "sz" must be the number of bytes in the cell.
-*/
-static void dropCell(MemPage *pPage, int idx, int sz, int *pRC){
-  u32 pc;         /* Offset to cell content of cell being deleted */
-  u8 *data;       /* pPage->aData */
-  u8 *ptr;        /* Used to move bytes around within data[] */
-  int rc;         /* The return code */
-  int hdr;        /* Beginning of the header.  0 most pages.  100 page 1 */
-
-  if( *pRC ) return;
-  assert( idx>=0 && idx<pPage->nCell );
-  assert( CORRUPT_DB || sz==cellSize(pPage, idx) );
-  assert( tdsqlite3PagerIswriteable(pPage->pDbPage) );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( pPage->nFree>=0 );
-  data = pPage->aData;
-  ptr = &pPage->aCellIdx[2*idx];
-  pc = get2byte(ptr);
-  hdr = pPage->hdrOffset;
-  testcase( pc==get2byte(&data[hdr+5]) );
-  testcase( pc+sz==pPage->pBt->usableSize );
-  if( pc+sz > pPage->pBt->usableSize ){
-    *pRC = SQLITE_CORRUPT_BKPT;
-    return;
-  }
-  rc = freeSpace(pPage, pc, sz);
-  if( rc ){
-    *pRC = rc;
-    return;
-  }
-  pPage->nCell--;
-  if( pPage->nCell==0 ){
-    memset(&data[hdr+1], 0, 4);
-    data[hdr+7] = 0;
-    put2byte(&data[hdr+5], pPage->pBt->usableSize);
-    pPage->nFree = pPage->pBt->usableSize - pPage->hdrOffset
-                       - pPage->childPtrSize - 8;
-  }else{
-    memmove(ptr, ptr+2, 2*(pPage->nCell - idx));
-    put2byte(&data[hdr+3], pPage->nCell);
-    pPage->nFree += 2;
-  }
-}
-
-/*
-** Insert a new cell on pPage at cell index "i".  pCell points to the
-** content of the cell.
-**
-** If the cell content will fit on the page, then put it there.  If it
-** will not fit, then make a copy of the cell content into pTemp if
-** pTemp is not null.  Regardless of pTemp, allocate a new entry
-** in pPage->apOvfl[] and make it point to the cell content (either
-** in pTemp or the original pCell) and also record its index. 
-** Allocating a new entry in pPage->aCell[] implies that 
-** pPage->nOverflow is incremented.
-**
-** *pRC must be SQLITE_OK when this routine is called.
-*/
-static void insertCell(
-  MemPage *pPage,   /* Page into which we are copying */
-  int i,            /* New cell becomes the i-th cell of the page */
-  u8 *pCell,        /* Content of the new cell */
-  int sz,           /* Bytes of content in pCell */
-  u8 *pTemp,        /* Temp storage space for pCell, if needed */
-  Pgno iChild,      /* If non-zero, replace first 4 bytes with this value */
-  int *pRC          /* Read and write return code from here */
-){
-  int idx = 0;      /* Where to write new cell content in data[] */
-  int j;            /* Loop counter */
-  u8 *data;         /* The content of the whole page */
-  u8 *pIns;         /* The point in pPage->aCellIdx[] where no cell inserted */
-
-  assert( *pRC==SQLITE_OK );
-  assert( i>=0 && i<=pPage->nCell+pPage->nOverflow );
-  assert( MX_CELL(pPage->pBt)<=10921 );
-  assert( pPage->nCell<=MX_CELL(pPage->pBt) || CORRUPT_DB );
-  assert( pPage->nOverflow<=ArraySize(pPage->apOvfl) );
-  assert( ArraySize(pPage->apOvfl)==ArraySize(pPage->aiOvfl) );
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( sz==pPage->xCellSize(pPage, pCell) || CORRUPT_DB );
-  assert( pPage->nFree>=0 );
-  if( pPage->nOverflow || sz+2>pPage->nFree ){
-    if( pTemp ){
-      memcpy(pTemp, pCell, sz);
-      pCell = pTemp;
-    }
-    if( iChild ){
-      put4byte(pCell, iChild);
-    }
-    j = pPage->nOverflow++;
-    /* Comparison against ArraySize-1 since we hold back one extra slot
-    ** as a contingency.  In other words, never need more than 3 overflow
-    ** slots but 4 are allocated, just to be safe. */
-    assert( j < ArraySize(pPage->apOvfl)-1 );
-    pPage->apOvfl[j] = pCell;
-    pPage->aiOvfl[j] = (u16)i;
-
-    /* When multiple overflows occur, they are always sequential and in
-    ** sorted order.  This invariants arise because multiple overflows can
-    ** only occur when inserting divider cells into the parent page during
-    ** balancing, and the dividers are adjacent and sorted.
-    */
-    assert( j==0 || pPage->aiOvfl[j-1]<(u16)i ); /* Overflows in sorted order */
-    assert( j==0 || i==pPage->aiOvfl[j-1]+1 );   /* Overflows are sequential */
-  }else{
-    int rc = tdsqlite3PagerWrite(pPage->pDbPage);
-    if( rc!=SQLITE_OK ){
-      *pRC = rc;
-      return;
-    }
-    assert( tdsqlite3PagerIswriteable(pPage->pDbPage) );
-    data = pPage->aData;
-    assert( &data[pPage->cellOffset]==pPage->aCellIdx );
-    rc = allocateSpace(pPage, sz, &idx);
-    if( rc ){ *pRC = rc; return; }
-    /* The allocateSpace() routine guarantees the following properties
-    ** if it returns successfully */
-    assert( idx >= 0 );
-    assert( idx >= pPage->cellOffset+2*pPage->nCell+2 || CORRUPT_DB );
-    assert( idx+sz <= (int)pPage->pBt->usableSize );
-    pPage->nFree -= (u16)(2 + sz);
-    if( iChild ){
-      /* In a corrupt database where an entry in the cell index section of
-      ** a btree page has a value of 3 or less, the pCell value might point
-      ** as many as 4 bytes in front of the start of the aData buffer for
-      ** the source page.  Make sure this does not cause problems by not
-      ** reading the first 4 bytes */
-      memcpy(&data[idx+4], pCell+4, sz-4);
-      put4byte(&data[idx], iChild);
-    }else{
-      memcpy(&data[idx], pCell, sz);
-    }
-    pIns = pPage->aCellIdx + i*2;
-    memmove(pIns+2, pIns, 2*(pPage->nCell - i));
-    put2byte(pIns, idx);
-    pPage->nCell++;
-    /* increment the cell count */
-    if( (++data[pPage->hdrOffset+4])==0 ) data[pPage->hdrOffset+3]++;
-    assert( get2byte(&data[pPage->hdrOffset+3])==pPage->nCell || CORRUPT_DB );
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( pPage->pBt->autoVacuum ){
-      /* The cell may contain a pointer to an overflow page. If so, write
-      ** the entry for the overflow page into the pointer map.
-      */
-      ptrmapPutOvflPtr(pPage, pPage, pCell, pRC);
-    }
-#endif
-  }
-}
-
-/*
-** The following parameters determine how many adjacent pages get involved
-** in a balancing operation.  NN is the number of neighbors on either side
-** of the page that participate in the balancing operation.  NB is the
-** total number of pages that participate, including the target page and
-** NN neighbors on either side.
-**
-** The minimum value of NN is 1 (of course).  Increasing NN above 1
-** (to 2 or 3) gives a modest improvement in SELECT and DELETE performance
-** in exchange for a larger degradation in INSERT and UPDATE performance.
-** The value of NN appears to give the best results overall.
-**
-** (Later:) The description above makes it seem as if these values are
-** tunable - as if you could change them and recompile and it would all work.
-** But that is unlikely.  NB has been 3 since the inception of SQLite and
-** we have never tested any other value.
-*/
-#define NN 1             /* Number of neighbors on either side of pPage */
-#define NB 3             /* (NN*2+1): Total pages involved in the balance */
-
-/*
-** A CellArray object contains a cache of pointers and sizes for a
-** consecutive sequence of cells that might be held on multiple pages.
-**
-** The cells in this array are the divider cell or cells from the pParent
-** page plus up to three child pages.  There are a total of nCell cells.
-**
-** pRef is a pointer to one of the pages that contributes cells.  This is
-** used to access information such as MemPage.intKey and MemPage.pBt->pageSize
-** which should be common to all pages that contribute cells to this array.
-**
-** apCell[] and szCell[] hold, respectively, pointers to the start of each
-** cell and the size of each cell.  Some of the apCell[] pointers might refer
-** to overflow cells.  In other words, some apCel[] pointers might not point
-** to content area of the pages.
-**
-** A szCell[] of zero means the size of that cell has not yet been computed.
-**
-** The cells come from as many as four different pages:
-**
-**             -----------
-**             | Parent  |
-**             -----------
-**            /     |     \
-**           /      |      \
-**  ---------   ---------   ---------
-**  |Child-1|   |Child-2|   |Child-3|
-**  ---------   ---------   ---------
-**
-** The order of cells is in the array is for an index btree is:
-**
-**       1.  All cells from Child-1 in order
-**       2.  The first divider cell from Parent
-**       3.  All cells from Child-2 in order
-**       4.  The second divider cell from Parent
-**       5.  All cells from Child-3 in order
-**
-** For a table-btree (with rowids) the items 2 and 4 are empty because
-** content exists only in leaves and there are no divider cells.
-**
-** For an index btree, the apEnd[] array holds pointer to the end of page
-** for Child-1, the Parent, Child-2, the Parent (again), and Child-3,
-** respectively. The ixNx[] array holds the number of cells contained in
-** each of these 5 stages, and all stages to the left.  Hence:
-**
-**    ixNx[0] = Number of cells in Child-1.
-**    ixNx[1] = Number of cells in Child-1 plus 1 for first divider.
-**    ixNx[2] = Number of cells in Child-1 and Child-2 + 1 for 1st divider.
-**    ixNx[3] = Number of cells in Child-1 and Child-2 + both divider cells
-**    ixNx[4] = Total number of cells.
-**
-** For a table-btree, the concept is similar, except only apEnd[0]..apEnd[2]
-** are used and they point to the leaf pages only, and the ixNx value are:
-**
-**    ixNx[0] = Number of cells in Child-1.
-**    ixNx[1] = Number of cells in Child-1 and Child-2.
-**    ixNx[2] = Total number of cells.
-**
-** Sometimes when deleting, a child page can have zero cells.  In those
-** cases, ixNx[] entries with higher indexes, and the corresponding apEnd[]
-** entries, shift down.  The end result is that each ixNx[] entry should
-** be larger than the previous
-*/
-typedef struct CellArray CellArray;
-struct CellArray {
-  int nCell;              /* Number of cells in apCell[] */
-  MemPage *pRef;          /* Reference page */
-  u8 **apCell;            /* All cells begin balanced */
-  u16 *szCell;            /* Local size of all cells in apCell[] */
-  u8 *apEnd[NB*2];        /* MemPage.aDataEnd values */
-  int ixNx[NB*2];         /* Index of at which we move to the next apEnd[] */
-};
-
-/*
-** Make sure the cell sizes at idx, idx+1, ..., idx+N-1 have been
-** computed.
-*/
-static void populateCellCache(CellArray *p, int idx, int N){
-  assert( idx>=0 && idx+N<=p->nCell );
-  while( N>0 ){
-    assert( p->apCell[idx]!=0 );
-    if( p->szCell[idx]==0 ){
-      p->szCell[idx] = p->pRef->xCellSize(p->pRef, p->apCell[idx]);
-    }else{
-      assert( CORRUPT_DB ||
-              p->szCell[idx]==p->pRef->xCellSize(p->pRef, p->apCell[idx]) );
-    }
-    idx++;
-    N--;
-  }
-}
-
-/*
-** Return the size of the Nth element of the cell array
-*/
-static SQLITE_NOINLINE u16 computeCellSize(CellArray *p, int N){
-  assert( N>=0 && N<p->nCell );
-  assert( p->szCell[N]==0 );
-  p->szCell[N] = p->pRef->xCellSize(p->pRef, p->apCell[N]);
-  return p->szCell[N];
-}
-static u16 cachedCellSize(CellArray *p, int N){
-  assert( N>=0 && N<p->nCell );
-  if( p->szCell[N] ) return p->szCell[N];
-  return computeCellSize(p, N);
-}
-
-/*
-** Array apCell[] contains pointers to nCell b-tree page cells. The 
-** szCell[] array contains the size in bytes of each cell. This function
-** replaces the current contents of page pPg with the contents of the cell
-** array.
-**
-** Some of the cells in apCell[] may currently be stored in pPg. This
-** function works around problems caused by this by making a copy of any 
-** such cells before overwriting the page data.
-**
-** The MemPage.nFree field is invalidated by this function. It is the 
-** responsibility of the caller to set it correctly.
-*/
-static int rebuildPage(
-  CellArray *pCArray,             /* Content to be added to page pPg */
-  int iFirst,                     /* First cell in pCArray to use */
-  int nCell,                      /* Final number of cells on page */
-  MemPage *pPg                    /* The page to be reconstructed */
-){
-  const int hdr = pPg->hdrOffset;          /* Offset of header on pPg */
-  u8 * const aData = pPg->aData;           /* Pointer to data for pPg */
-  const int usableSize = pPg->pBt->usableSize;
-  u8 * const pEnd = &aData[usableSize];
-  int i = iFirst;                 /* Which cell to copy from pCArray*/
-  u32 j;                          /* Start of cell content area */
-  int iEnd = i+nCell;             /* Loop terminator */
-  u8 *pCellptr = pPg->aCellIdx;
-  u8 *pTmp = tdsqlite3PagerTempSpace(pPg->pBt->pPager);
-  u8 *pData;
-  int k;                          /* Current slot in pCArray->apEnd[] */
-  u8 *pSrcEnd;                    /* Current pCArray->apEnd[k] value */
-
-  assert( i<iEnd );
-  j = get2byte(&aData[hdr+5]);
-  if( NEVER(j>(u32)usableSize) ){ j = 0; }
-  memcpy(&pTmp[j], &aData[j], usableSize - j);
-
-  for(k=0; pCArray->ixNx[k]<=i && ALWAYS(k<NB*2); k++){}
-  pSrcEnd = pCArray->apEnd[k];
-
-  pData = pEnd;
-  while( 1/*exit by break*/ ){
-    u8 *pCell = pCArray->apCell[i];
-    u16 sz = pCArray->szCell[i];
-    assert( sz>0 );
-    if( SQLITE_WITHIN(pCell,aData,pEnd) ){
-      if( ((uptr)(pCell+sz))>(uptr)pEnd ) return SQLITE_CORRUPT_BKPT;
-      pCell = &pTmp[pCell - aData];
-    }else if( (uptr)(pCell+sz)>(uptr)pSrcEnd
-           && (uptr)(pCell)<(uptr)pSrcEnd
-    ){
-      return SQLITE_CORRUPT_BKPT;
-    }
-
-    pData -= sz;
-    put2byte(pCellptr, (pData - aData));
-    pCellptr += 2;
-    if( pData < pCellptr ) return SQLITE_CORRUPT_BKPT;
-    memcpy(pData, pCell, sz);
-    assert( sz==pPg->xCellSize(pPg, pCell) || CORRUPT_DB );
-    testcase( sz!=pPg->xCellSize(pPg,pCell) )
-    i++;
-    if( i>=iEnd ) break;
-    if( pCArray->ixNx[k]<=i ){
-      k++;
-      pSrcEnd = pCArray->apEnd[k];
-    }
-  }
-
-  /* The pPg->nFree field is now set incorrectly. The caller will fix it. */
-  pPg->nCell = nCell;
-  pPg->nOverflow = 0;
-
-  put2byte(&aData[hdr+1], 0);
-  put2byte(&aData[hdr+3], pPg->nCell);
-  put2byte(&aData[hdr+5], pData - aData);
-  aData[hdr+7] = 0x00;
-  return SQLITE_OK;
-}
-
-/*
-** The pCArray objects contains pointers to b-tree cells and the cell sizes.
-** This function attempts to add the cells stored in the array to page pPg.
-** If it cannot (because the page needs to be defragmented before the cells
-** will fit), non-zero is returned. Otherwise, if the cells are added
-** successfully, zero is returned.
-**
-** Argument pCellptr points to the first entry in the cell-pointer array
-** (part of page pPg) to populate. After cell apCell[0] is written to the
-** page body, a 16-bit offset is written to pCellptr. And so on, for each
-** cell in the array. It is the responsibility of the caller to ensure
-** that it is safe to overwrite this part of the cell-pointer array.
-**
-** When this function is called, *ppData points to the start of the 
-** content area on page pPg. If the size of the content area is extended,
-** *ppData is updated to point to the new start of the content area
-** before returning.
-**
-** Finally, argument pBegin points to the byte immediately following the
-** end of the space required by this page for the cell-pointer area (for
-** all cells - not just those inserted by the current call). If the content
-** area must be extended to before this point in order to accomodate all
-** cells in apCell[], then the cells do not fit and non-zero is returned.
-*/
-static int pageInsertArray(
-  MemPage *pPg,                   /* Page to add cells to */
-  u8 *pBegin,                     /* End of cell-pointer array */
-  u8 **ppData,                    /* IN/OUT: Page content-area pointer */
-  u8 *pCellptr,                   /* Pointer to cell-pointer area */
-  int iFirst,                     /* Index of first cell to add */
-  int nCell,                      /* Number of cells to add to pPg */
-  CellArray *pCArray              /* Array of cells */
-){
-  int i = iFirst;                 /* Loop counter - cell index to insert */
-  u8 *aData = pPg->aData;         /* Complete page */
-  u8 *pData = *ppData;            /* Content area.  A subset of aData[] */
-  int iEnd = iFirst + nCell;      /* End of loop. One past last cell to ins */
-  int k;                          /* Current slot in pCArray->apEnd[] */
-  u8 *pEnd;                       /* Maximum extent of cell data */
-  assert( CORRUPT_DB || pPg->hdrOffset==0 );    /* Never called on page 1 */
-  if( iEnd<=iFirst ) return 0;
-  for(k=0; pCArray->ixNx[k]<=i && ALWAYS(k<NB*2); k++){}
-  pEnd = pCArray->apEnd[k];
-  while( 1 /*Exit by break*/ ){
-    int sz, rc;
-    u8 *pSlot;
-    assert( pCArray->szCell[i]!=0 );
-    sz = pCArray->szCell[i];
-    if( (aData[1]==0 && aData[2]==0) || (pSlot = pageFindSlot(pPg,sz,&rc))==0 ){
-      if( (pData - pBegin)<sz ) return 1;
-      pData -= sz;
-      pSlot = pData;
-    }
-    /* pSlot and pCArray->apCell[i] will never overlap on a well-formed
-    ** database.  But they might for a corrupt database.  Hence use memmove()
-    ** since memcpy() sends SIGABORT with overlapping buffers on OpenBSD */
-    assert( (pSlot+sz)<=pCArray->apCell[i]
-         || pSlot>=(pCArray->apCell[i]+sz)
-         || CORRUPT_DB );
-    if( (uptr)(pCArray->apCell[i]+sz)>(uptr)pEnd
-     && (uptr)(pCArray->apCell[i])<(uptr)pEnd
-    ){
-      assert( CORRUPT_DB );
-      (void)SQLITE_CORRUPT_BKPT;
-      return 1;
-    }
-    memmove(pSlot, pCArray->apCell[i], sz);
-    put2byte(pCellptr, (pSlot - aData));
-    pCellptr += 2;
-    i++;
-    if( i>=iEnd ) break;
-    if( pCArray->ixNx[k]<=i ){
-      k++;
-      pEnd = pCArray->apEnd[k];
-    }
-  }
-  *ppData = pData;
-  return 0;
-}
-
-/*
-** The pCArray object contains pointers to b-tree cells and their sizes.
-**
-** This function adds the space associated with each cell in the array
-** that is currently stored within the body of pPg to the pPg free-list.
-** The cell-pointers and other fields of the page are not updated.
-**
-** This function returns the total number of cells added to the free-list.
-*/
-static int pageFreeArray(
-  MemPage *pPg,                   /* Page to edit */
-  int iFirst,                     /* First cell to delete */
-  int nCell,                      /* Cells to delete */
-  CellArray *pCArray              /* Array of cells */
-){
-  u8 * const aData = pPg->aData;
-  u8 * const pEnd = &aData[pPg->pBt->usableSize];
-  u8 * const pStart = &aData[pPg->hdrOffset + 8 + pPg->childPtrSize];
-  int nRet = 0;
-  int i;
-  int iEnd = iFirst + nCell;
-  u8 *pFree = 0;
-  int szFree = 0;
-
-  for(i=iFirst; i<iEnd; i++){
-    u8 *pCell = pCArray->apCell[i];
-    if( SQLITE_WITHIN(pCell, pStart, pEnd) ){
-      int sz;
-      /* No need to use cachedCellSize() here.  The sizes of all cells that
-      ** are to be freed have already been computing while deciding which
-      ** cells need freeing */
-      sz = pCArray->szCell[i];  assert( sz>0 );
-      if( pFree!=(pCell + sz) ){
-        if( pFree ){
-          assert( pFree>aData && (pFree - aData)<65536 );
-          freeSpace(pPg, (u16)(pFree - aData), szFree);
-        }
-        pFree = pCell;
-        szFree = sz;
-        if( pFree+sz>pEnd ) return 0;
-      }else{
-        pFree = pCell;
-        szFree += sz;
-      }
-      nRet++;
-    }
-  }
-  if( pFree ){
-    assert( pFree>aData && (pFree - aData)<65536 );
-    freeSpace(pPg, (u16)(pFree - aData), szFree);
-  }
-  return nRet;
-}
-
-/*
-** pCArray contains pointers to and sizes of all cells in the page being
-** balanced.  The current page, pPg, has pPg->nCell cells starting with
-** pCArray->apCell[iOld].  After balancing, this page should hold nNew cells
-** starting at apCell[iNew].
-**
-** This routine makes the necessary adjustments to pPg so that it contains
-** the correct cells after being balanced.
-**
-** The pPg->nFree field is invalid when this function returns. It is the
-** responsibility of the caller to set it correctly.
-*/
-static int editPage(
-  MemPage *pPg,                   /* Edit this page */
-  int iOld,                       /* Index of first cell currently on page */
-  int iNew,                       /* Index of new first cell on page */
-  int nNew,                       /* Final number of cells on page */
-  CellArray *pCArray              /* Array of cells and sizes */
-){
-  u8 * const aData = pPg->aData;
-  const int hdr = pPg->hdrOffset;
-  u8 *pBegin = &pPg->aCellIdx[nNew * 2];
-  int nCell = pPg->nCell;       /* Cells stored on pPg */
-  u8 *pData;
-  u8 *pCellptr;
-  int i;
-  int iOldEnd = iOld + pPg->nCell + pPg->nOverflow;
-  int iNewEnd = iNew + nNew;
-
-#ifdef SQLITE_DEBUG
-  u8 *pTmp = tdsqlite3PagerTempSpace(pPg->pBt->pPager);
-  memcpy(pTmp, aData, pPg->pBt->usableSize);
-#endif
-
-  /* Remove cells from the start and end of the page */
-  assert( nCell>=0 );
-  if( iOld<iNew ){
-    int nShift = pageFreeArray(pPg, iOld, iNew-iOld, pCArray);
-    if( nShift>nCell ) return SQLITE_CORRUPT_BKPT;
-    memmove(pPg->aCellIdx, &pPg->aCellIdx[nShift*2], nCell*2);
-    nCell -= nShift;
-  }
-  if( iNewEnd < iOldEnd ){
-    int nTail = pageFreeArray(pPg, iNewEnd, iOldEnd - iNewEnd, pCArray);
-    assert( nCell>=nTail );
-    nCell -= nTail;
-  }
-
-  pData = &aData[get2byteNotZero(&aData[hdr+5])];
-  if( pData<pBegin ) goto editpage_fail;
-
-  /* Add cells to the start of the page */
-  if( iNew<iOld ){
-    int nAdd = MIN(nNew,iOld-iNew);
-    assert( (iOld-iNew)<nNew || nCell==0 || CORRUPT_DB );
-    assert( nAdd>=0 );
-    pCellptr = pPg->aCellIdx;
-    memmove(&pCellptr[nAdd*2], pCellptr, nCell*2);
-    if( pageInsertArray(
-          pPg, pBegin, &pData, pCellptr,
-          iNew, nAdd, pCArray
-    ) ) goto editpage_fail;
-    nCell += nAdd;
-  }
-
-  /* Add any overflow cells */
-  for(i=0; i<pPg->nOverflow; i++){
-    int iCell = (iOld + pPg->aiOvfl[i]) - iNew;
-    if( iCell>=0 && iCell<nNew ){
-      pCellptr = &pPg->aCellIdx[iCell * 2];
-      if( nCell>iCell ){
-        memmove(&pCellptr[2], pCellptr, (nCell - iCell) * 2);
-      }
-      nCell++;
-      cachedCellSize(pCArray, iCell+iNew);
-      if( pageInsertArray(
-            pPg, pBegin, &pData, pCellptr,
-            iCell+iNew, 1, pCArray
-      ) ) goto editpage_fail;
-    }
-  }
-
-  /* Append cells to the end of the page */
-  assert( nCell>=0 );
-  pCellptr = &pPg->aCellIdx[nCell*2];
-  if( pageInsertArray(
-        pPg, pBegin, &pData, pCellptr,
-        iNew+nCell, nNew-nCell, pCArray
-  ) ) goto editpage_fail;
-
-  pPg->nCell = nNew;
-  pPg->nOverflow = 0;
-
-  put2byte(&aData[hdr+3], pPg->nCell);
-  put2byte(&aData[hdr+5], pData - aData);
-
-#ifdef SQLITE_DEBUG
-  for(i=0; i<nNew && !CORRUPT_DB; i++){
-    u8 *pCell = pCArray->apCell[i+iNew];
-    int iOff = get2byteAligned(&pPg->aCellIdx[i*2]);
-    if( SQLITE_WITHIN(pCell, aData, &aData[pPg->pBt->usableSize]) ){
-      pCell = &pTmp[pCell - aData];
-    }
-    assert( 0==memcmp(pCell, &aData[iOff],
-            pCArray->pRef->xCellSize(pCArray->pRef, pCArray->apCell[i+iNew])) );
-  }
-#endif
-
-  return SQLITE_OK;
- editpage_fail:
-  /* Unable to edit this page. Rebuild it from scratch instead. */
-  populateCellCache(pCArray, iNew, nNew);
-  return rebuildPage(pCArray, iNew, nNew, pPg);
-}
-
-
-#ifndef SQLITE_OMIT_QUICKBALANCE
-/*
-** This version of balance() handles the common special case where
-** a new entry is being inserted on the extreme right-end of the
-** tree, in other words, when the new entry will become the largest
-** entry in the tree.
-**
-** Instead of trying to balance the 3 right-most leaf pages, just add
-** a new page to the right-hand side and put the one new entry in
-** that page.  This leaves the right side of the tree somewhat
-** unbalanced.  But odds are that we will be inserting new entries
-** at the end soon afterwards so the nearly empty page will quickly
-** fill up.  On average.
-**
-** pPage is the leaf page which is the right-most page in the tree.
-** pParent is its parent.  pPage must have a single overflow entry
-** which is also the right-most entry on the page.
-**
-** The pSpace buffer is used to store a temporary copy of the divider
-** cell that will be inserted into pParent. Such a cell consists of a 4
-** byte page number followed by a variable length integer. In other
-** words, at most 13 bytes. Hence the pSpace buffer must be at
-** least 13 bytes in size.
-*/
-static int balance_quick(MemPage *pParent, MemPage *pPage, u8 *pSpace){
-  BtShared *const pBt = pPage->pBt;    /* B-Tree Database */
-  MemPage *pNew;                       /* Newly allocated page */
-  int rc;                              /* Return Code */
-  Pgno pgnoNew;                        /* Page number of pNew */
-
-  assert( tdsqlite3_mutex_held(pPage->pBt->mutex) );
-  assert( tdsqlite3PagerIswriteable(pParent->pDbPage) );
-  assert( pPage->nOverflow==1 );
-  
-  if( pPage->nCell==0 ) return SQLITE_CORRUPT_BKPT;  /* dbfuzz001.test */
-  assert( pPage->nFree>=0 );
-  assert( pParent->nFree>=0 );
-
-  /* Allocate a new page. This page will become the right-sibling of 
-  ** pPage. Make the parent page writable, so that the new divider cell
-  ** may be inserted. If both these operations are successful, proceed.
-  */
-  rc = allocateBtreePage(pBt, &pNew, &pgnoNew, 0, 0);
-
-  if( rc==SQLITE_OK ){
-
-    u8 *pOut = &pSpace[4];
-    u8 *pCell = pPage->apOvfl[0];
-    u16 szCell = pPage->xCellSize(pPage, pCell);
-    u8 *pStop;
-    CellArray b;
-
-    assert( tdsqlite3PagerIswriteable(pNew->pDbPage) );
-    assert( CORRUPT_DB || pPage->aData[0]==(PTF_INTKEY|PTF_LEAFDATA|PTF_LEAF) );
-    zeroPage(pNew, PTF_INTKEY|PTF_LEAFDATA|PTF_LEAF);
-    b.nCell = 1;
-    b.pRef = pPage;
-    b.apCell = &pCell;
-    b.szCell = &szCell;
-    b.apEnd[0] = pPage->aDataEnd;
-    b.ixNx[0] = 2;
-    rc = rebuildPage(&b, 0, 1, pNew);
-    if( NEVER(rc) ){
-      releasePage(pNew);
-      return rc;
-    }
-    pNew->nFree = pBt->usableSize - pNew->cellOffset - 2 - szCell;
-
-    /* If this is an auto-vacuum database, update the pointer map
-    ** with entries for the new page, and any pointer from the 
-    ** cell on the page to an overflow page. If either of these
-    ** operations fails, the return code is set, but the contents
-    ** of the parent page are still manipulated by thh code below.
-    ** That is Ok, at this point the parent page is guaranteed to
-    ** be marked as dirty. Returning an error code will cause a
-    ** rollback, undoing any changes made to the parent page.
-    */
-    if( ISAUTOVACUUM ){
-      ptrmapPut(pBt, pgnoNew, PTRMAP_BTREE, pParent->pgno, &rc);
-      if( szCell>pNew->minLocal ){
-        ptrmapPutOvflPtr(pNew, pNew, pCell, &rc);
-      }
-    }
-  
-    /* Create a divider cell to insert into pParent. The divider cell
-    ** consists of a 4-byte page number (the page number of pPage) and
-    ** a variable length key value (which must be the same value as the
-    ** largest key on pPage).
-    **
-    ** To find the largest key value on pPage, first find the right-most 
-    ** cell on pPage. The first two fields of this cell are the 
-    ** record-length (a variable length integer at most 32-bits in size)
-    ** and the key value (a variable length integer, may have any value).
-    ** The first of the while(...) loops below skips over the record-length
-    ** field. The second while(...) loop copies the key value from the
-    ** cell on pPage into the pSpace buffer.
-    */
-    pCell = findCell(pPage, pPage->nCell-1);
-    pStop = &pCell[9];
-    while( (*(pCell++)&0x80) && pCell<pStop );
-    pStop = &pCell[9];
-    while( ((*(pOut++) = *(pCell++))&0x80) && pCell<pStop );
-
-    /* Insert the new divider cell into pParent. */
-    if( rc==SQLITE_OK ){
-      insertCell(pParent, pParent->nCell, pSpace, (int)(pOut-pSpace),
-                   0, pPage->pgno, &rc);
-    }
-
-    /* Set the right-child pointer of pParent to point to the new page. */
-    put4byte(&pParent->aData[pParent->hdrOffset+8], pgnoNew);
-  
-    /* Release the reference to the new page. */
-    releasePage(pNew);
-  }
-
-  return rc;
-}
-#endif /* SQLITE_OMIT_QUICKBALANCE */
-
-#if 0
-/*
-** This function does not contribute anything to the operation of SQLite.
-** it is sometimes activated temporarily while debugging code responsible 
-** for setting pointer-map entries.
-*/
-static int ptrmapCheckPages(MemPage **apPage, int nPage){
-  int i, j;
-  for(i=0; i<nPage; i++){
-    Pgno n;
-    u8 e;
-    MemPage *pPage = apPage[i];
-    BtShared *pBt = pPage->pBt;
-    assert( pPage->isInit );
-
-    for(j=0; j<pPage->nCell; j++){
-      CellInfo info;
-      u8 *z;
-     
-      z = findCell(pPage, j);
-      pPage->xParseCell(pPage, z, &info);
-      if( info.nLocal<info.nPayload ){
-        Pgno ovfl = get4byte(&z[info.nSize-4]);
-        ptrmapGet(pBt, ovfl, &e, &n);
-        assert( n==pPage->pgno && e==PTRMAP_OVERFLOW1 );
-      }
-      if( !pPage->leaf ){
-        Pgno child = get4byte(z);
-        ptrmapGet(pBt, child, &e, &n);
-        assert( n==pPage->pgno && e==PTRMAP_BTREE );
-      }
-    }
-    if( !pPage->leaf ){
-      Pgno child = get4byte(&pPage->aData[pPage->hdrOffset+8]);
-      ptrmapGet(pBt, child, &e, &n);
-      assert( n==pPage->pgno && e==PTRMAP_BTREE );
-    }
-  }
-  return 1;
-}
-#endif
-
-/*
-** This function is used to copy the contents of the b-tree node stored 
-** on page pFrom to page pTo. If page pFrom was not a leaf page, then
-** the pointer-map entries for each child page are updated so that the
-** parent page stored in the pointer map is page pTo. If pFrom contained
-** any cells with overflow page pointers, then the corresponding pointer
-** map entries are also updated so that the parent page is page pTo.
-**
-** If pFrom is currently carrying any overflow cells (entries in the
-** MemPage.apOvfl[] array), they are not copied to pTo. 
-**
-** Before returning, page pTo is reinitialized using btreeInitPage().
-**
-** The performance of this function is not critical. It is only used by 
-** the balance_shallower() and balance_deeper() procedures, neither of
-** which are called often under normal circumstances.
-*/
-static void copyNodeContent(MemPage *pFrom, MemPage *pTo, int *pRC){
-  if( (*pRC)==SQLITE_OK ){
-    BtShared * const pBt = pFrom->pBt;
-    u8 * const aFrom = pFrom->aData;
-    u8 * const aTo = pTo->aData;
-    int const iFromHdr = pFrom->hdrOffset;
-    int const iToHdr = ((pTo->pgno==1) ? 100 : 0);
-    int rc;
-    int iData;
-  
-  
-    assert( pFrom->isInit );
-    assert( pFrom->nFree>=iToHdr );
-    assert( get2byte(&aFrom[iFromHdr+5]) <= (int)pBt->usableSize );
-  
-    /* Copy the b-tree node content from page pFrom to page pTo. */
-    iData = get2byte(&aFrom[iFromHdr+5]);
-    memcpy(&aTo[iData], &aFrom[iData], pBt->usableSize-iData);
-    memcpy(&aTo[iToHdr], &aFrom[iFromHdr], pFrom->cellOffset + 2*pFrom->nCell);
-  
-    /* Reinitialize page pTo so that the contents of the MemPage structure
-    ** match the new data. The initialization of pTo can actually fail under
-    ** fairly obscure circumstances, even though it is a copy of initialized 
-    ** page pFrom.
-    */
-    pTo->isInit = 0;
-    rc = btreeInitPage(pTo);
-    if( rc==SQLITE_OK ) rc = btreeComputeFreeSpace(pTo);
-    if( rc!=SQLITE_OK ){
-      *pRC = rc;
-      return;
-    }
-  
-    /* If this is an auto-vacuum database, update the pointer-map entries
-    ** for any b-tree or overflow pages that pTo now contains the pointers to.
-    */
-    if( ISAUTOVACUUM ){
-      *pRC = setChildPtrmaps(pTo);
-    }
-  }
-}
-
-/*
-** This routine redistributes cells on the iParentIdx'th child of pParent
-** (hereafter "the page") and up to 2 siblings so that all pages have about the
-** same amount of free space. Usually a single sibling on either side of the
-** page are used in the balancing, though both siblings might come from one
-** side if the page is the first or last child of its parent. If the page 
-** has fewer than 2 siblings (something which can only happen if the page
-** is a root page or a child of a root page) then all available siblings
-** participate in the balancing.
-**
-** The number of siblings of the page might be increased or decreased by 
-** one or two in an effort to keep pages nearly full but not over full. 
-**
-** Note that when this routine is called, some of the cells on the page
-** might not actually be stored in MemPage.aData[]. This can happen
-** if the page is overfull. This routine ensures that all cells allocated
-** to the page and its siblings fit into MemPage.aData[] before returning.
-**
-** In the course of balancing the page and its siblings, cells may be
-** inserted into or removed from the parent page (pParent). Doing so
-** may cause the parent page to become overfull or underfull. If this
-** happens, it is the responsibility of the caller to invoke the correct
-** balancing routine to fix this problem (see the balance() routine). 
-**
-** If this routine fails for any reason, it might leave the database
-** in a corrupted state. So if this routine fails, the database should
-** be rolled back.
-**
-** The third argument to this function, aOvflSpace, is a pointer to a
-** buffer big enough to hold one page. If while inserting cells into the parent
-** page (pParent) the parent page becomes overfull, this buffer is
-** used to store the parent's overflow cells. Because this function inserts
-** a maximum of four divider cells into the parent page, and the maximum
-** size of a cell stored within an internal node is always less than 1/4
-** of the page-size, the aOvflSpace[] buffer is guaranteed to be large
-** enough for all overflow cells.
-**
-** If aOvflSpace is set to a null pointer, this function returns 
-** SQLITE_NOMEM.
-*/
-static int balance_nonroot(
-  MemPage *pParent,               /* Parent page of siblings being balanced */
-  int iParentIdx,                 /* Index of "the page" in pParent */
-  u8 *aOvflSpace,                 /* page-size bytes of space for parent ovfl */
-  int isRoot,                     /* True if pParent is a root-page */
-  int bBulk                       /* True if this call is part of a bulk load */
-){
-  BtShared *pBt;               /* The whole database */
-  int nMaxCells = 0;           /* Allocated size of apCell, szCell, aFrom. */
-  int nNew = 0;                /* Number of pages in apNew[] */
-  int nOld;                    /* Number of pages in apOld[] */
-  int i, j, k;                 /* Loop counters */
-  int nxDiv;                   /* Next divider slot in pParent->aCell[] */
-  int rc = SQLITE_OK;          /* The return code */
-  u16 leafCorrection;          /* 4 if pPage is a leaf.  0 if not */
-  int leafData;                /* True if pPage is a leaf of a LEAFDATA tree */
-  int usableSpace;             /* Bytes in pPage beyond the header */
-  int pageFlags;               /* Value of pPage->aData[0] */
-  int iSpace1 = 0;             /* First unused byte of aSpace1[] */
-  int iOvflSpace = 0;          /* First unused byte of aOvflSpace[] */
-  int szScratch;               /* Size of scratch memory requested */
-  MemPage *apOld[NB];          /* pPage and up to two siblings */
-  MemPage *apNew[NB+2];        /* pPage and up to NB siblings after balancing */
-  u8 *pRight;                  /* Location in parent of right-sibling pointer */
-  u8 *apDiv[NB-1];             /* Divider cells in pParent */
-  int cntNew[NB+2];            /* Index in b.paCell[] of cell after i-th page */
-  int cntOld[NB+2];            /* Old index in b.apCell[] */
-  int szNew[NB+2];             /* Combined size of cells placed on i-th page */
-  u8 *aSpace1;                 /* Space for copies of dividers cells */
-  Pgno pgno;                   /* Temp var to store a page number in */
-  u8 abDone[NB+2];             /* True after i'th new page is populated */
-  Pgno aPgno[NB+2];            /* Page numbers of new pages before shuffling */
-  Pgno aPgOrder[NB+2];         /* Copy of aPgno[] used for sorting pages */
-  u16 aPgFlags[NB+2];          /* flags field of new pages before shuffling */
-  CellArray b;                  /* Parsed information on cells being balanced */
-
-  memset(abDone, 0, sizeof(abDone));
-  b.nCell = 0;
-  b.apCell = 0;
-  pBt = pParent->pBt;
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  assert( tdsqlite3PagerIswriteable(pParent->pDbPage) );
-
-  /* At this point pParent may have at most one overflow cell. And if
-  ** this overflow cell is present, it must be the cell with 
-  ** index iParentIdx. This scenario comes about when this function
-  ** is called (indirectly) from tdsqlite3BtreeDelete().
-  */
-  assert( pParent->nOverflow==0 || pParent->nOverflow==1 );
-  assert( pParent->nOverflow==0 || pParent->aiOvfl[0]==iParentIdx );
-
-  if( !aOvflSpace ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  assert( pParent->nFree>=0 );
-
-  /* Find the sibling pages to balance. Also locate the cells in pParent 
-  ** that divide the siblings. An attempt is made to find NN siblings on 
-  ** either side of pPage. More siblings are taken from one side, however, 
-  ** if there are fewer than NN siblings on the other side. If pParent
-  ** has NB or fewer children then all children of pParent are taken.  
-  **
-  ** This loop also drops the divider cells from the parent page. This
-  ** way, the remainder of the function does not have to deal with any
-  ** overflow cells in the parent page, since if any existed they will
-  ** have already been removed.
-  */
-  i = pParent->nOverflow + pParent->nCell;
-  if( i<2 ){
-    nxDiv = 0;
-  }else{
-    assert( bBulk==0 || bBulk==1 );
-    if( iParentIdx==0 ){                 
-      nxDiv = 0;
-    }else if( iParentIdx==i ){
-      nxDiv = i-2+bBulk;
-    }else{
-      nxDiv = iParentIdx-1;
-    }
-    i = 2-bBulk;
-  }
-  nOld = i+1;
-  if( (i+nxDiv-pParent->nOverflow)==pParent->nCell ){
-    pRight = &pParent->aData[pParent->hdrOffset+8];
-  }else{
-    pRight = findCell(pParent, i+nxDiv-pParent->nOverflow);
-  }
-  pgno = get4byte(pRight);
-  while( 1 ){
-    rc = getAndInitPage(pBt, pgno, &apOld[i], 0, 0);
-    if( rc ){
-      memset(apOld, 0, (i+1)*sizeof(MemPage*));
-      goto balance_cleanup;
-    }
-    if( apOld[i]->nFree<0 ){
-      rc = btreeComputeFreeSpace(apOld[i]);
-      if( rc ){
-        memset(apOld, 0, (i)*sizeof(MemPage*));
-        goto balance_cleanup;
-      }
-    }
-    if( (i--)==0 ) break;
-
-    if( pParent->nOverflow && i+nxDiv==pParent->aiOvfl[0] ){
-      apDiv[i] = pParent->apOvfl[0];
-      pgno = get4byte(apDiv[i]);
-      szNew[i] = pParent->xCellSize(pParent, apDiv[i]);
-      pParent->nOverflow = 0;
-    }else{
-      apDiv[i] = findCell(pParent, i+nxDiv-pParent->nOverflow);
-      pgno = get4byte(apDiv[i]);
-      szNew[i] = pParent->xCellSize(pParent, apDiv[i]);
-
-      /* Drop the cell from the parent page. apDiv[i] still points to
-      ** the cell within the parent, even though it has been dropped.
-      ** This is safe because dropping a cell only overwrites the first
-      ** four bytes of it, and this function does not need the first
-      ** four bytes of the divider cell. So the pointer is safe to use
-      ** later on.  
-      **
-      ** But not if we are in secure-delete mode. In secure-delete mode,
-      ** the dropCell() routine will overwrite the entire cell with zeroes.
-      ** In this case, temporarily copy the cell into the aOvflSpace[]
-      ** buffer. It will be copied out again as soon as the aSpace[] buffer
-      ** is allocated.  */
-      if( pBt->btsFlags & BTS_FAST_SECURE ){
-        int iOff;
-
-        iOff = SQLITE_PTR_TO_INT(apDiv[i]) - SQLITE_PTR_TO_INT(pParent->aData);
-        if( (iOff+szNew[i])>(int)pBt->usableSize ){
-          rc = SQLITE_CORRUPT_BKPT;
-          memset(apOld, 0, (i+1)*sizeof(MemPage*));
-          goto balance_cleanup;
-        }else{
-          memcpy(&aOvflSpace[iOff], apDiv[i], szNew[i]);
-          apDiv[i] = &aOvflSpace[apDiv[i]-pParent->aData];
-        }
-      }
-      dropCell(pParent, i+nxDiv-pParent->nOverflow, szNew[i], &rc);
-    }
-  }
-
-  /* Make nMaxCells a multiple of 4 in order to preserve 8-byte
-  ** alignment */
-  nMaxCells = nOld*(MX_CELL(pBt) + ArraySize(pParent->apOvfl));
-  nMaxCells = (nMaxCells + 3)&~3;
-
-  /*
-  ** Allocate space for memory structures
-  */
-  szScratch =
-       nMaxCells*sizeof(u8*)                       /* b.apCell */
-     + nMaxCells*sizeof(u16)                       /* b.szCell */
-     + pBt->pageSize;                              /* aSpace1 */
-
-  assert( szScratch<=7*(int)pBt->pageSize );
-  b.apCell = tdsqlite3StackAllocRaw(0, szScratch );
-  if( b.apCell==0 ){
-    rc = SQLITE_NOMEM_BKPT;
-    goto balance_cleanup;
-  }
-  b.szCell = (u16*)&b.apCell[nMaxCells];
-  aSpace1 = (u8*)&b.szCell[nMaxCells];
-  assert( EIGHT_BYTE_ALIGNMENT(aSpace1) );
-
-  /*
-  ** Load pointers to all cells on sibling pages and the divider cells
-  ** into the local b.apCell[] array.  Make copies of the divider cells
-  ** into space obtained from aSpace1[]. The divider cells have already
-  ** been removed from pParent.
-  **
-  ** If the siblings are on leaf pages, then the child pointers of the
-  ** divider cells are stripped from the cells before they are copied
-  ** into aSpace1[].  In this way, all cells in b.apCell[] are without
-  ** child pointers.  If siblings are not leaves, then all cell in
-  ** b.apCell[] include child pointers.  Either way, all cells in b.apCell[]
-  ** are alike.
-  **
-  ** leafCorrection:  4 if pPage is a leaf.  0 if pPage is not a leaf.
-  **       leafData:  1 if pPage holds key+data and pParent holds only keys.
-  */
-  b.pRef = apOld[0];
-  leafCorrection = b.pRef->leaf*4;
-  leafData = b.pRef->intKeyLeaf;
-  for(i=0; i<nOld; i++){
-    MemPage *pOld = apOld[i];
-    int limit = pOld->nCell;
-    u8 *aData = pOld->aData;
-    u16 maskPage = pOld->maskPage;
-    u8 *piCell = aData + pOld->cellOffset;
-    u8 *piEnd;
-    VVA_ONLY( int nCellAtStart = b.nCell; )
-
-    /* Verify that all sibling pages are of the same "type" (table-leaf,
-    ** table-interior, index-leaf, or index-interior).
-    */
-    if( pOld->aData[0]!=apOld[0]->aData[0] ){
-      rc = SQLITE_CORRUPT_BKPT;
-      goto balance_cleanup;
-    }
-
-    /* Load b.apCell[] with pointers to all cells in pOld.  If pOld
-    ** contains overflow cells, include them in the b.apCell[] array
-    ** in the correct spot.
-    **
-    ** Note that when there are multiple overflow cells, it is always the
-    ** case that they are sequential and adjacent.  This invariant arises
-    ** because multiple overflows can only occurs when inserting divider
-    ** cells into a parent on a prior balance, and divider cells are always
-    ** adjacent and are inserted in order.  There is an assert() tagged
-    ** with "NOTE 1" in the overflow cell insertion loop to prove this
-    ** invariant.
-    **
-    ** This must be done in advance.  Once the balance starts, the cell
-    ** offset section of the btree page will be overwritten and we will no
-    ** long be able to find the cells if a pointer to each cell is not saved
-    ** first.
-    */
-    memset(&b.szCell[b.nCell], 0, sizeof(b.szCell[0])*(limit+pOld->nOverflow));
-    if( pOld->nOverflow>0 ){
-      if( NEVER(limit<pOld->aiOvfl[0]) ){
-        rc = SQLITE_CORRUPT_BKPT;
-        goto balance_cleanup;
-      }
-      limit = pOld->aiOvfl[0];
-      for(j=0; j<limit; j++){
-        b.apCell[b.nCell] = aData + (maskPage & get2byteAligned(piCell));
-        piCell += 2;
-        b.nCell++;
-      }
-      for(k=0; k<pOld->nOverflow; k++){
-        assert( k==0 || pOld->aiOvfl[k-1]+1==pOld->aiOvfl[k] );/* NOTE 1 */
-        b.apCell[b.nCell] = pOld->apOvfl[k];
-        b.nCell++;
-      }
-    }
-    piEnd = aData + pOld->cellOffset + 2*pOld->nCell;
-    while( piCell<piEnd ){
-      assert( b.nCell<nMaxCells );
-      b.apCell[b.nCell] = aData + (maskPage & get2byteAligned(piCell));
-      piCell += 2;
-      b.nCell++;
-    }
-    assert( (b.nCell-nCellAtStart)==(pOld->nCell+pOld->nOverflow) );
-
-    cntOld[i] = b.nCell;
-    if( i<nOld-1 && !leafData){
-      u16 sz = (u16)szNew[i];
-      u8 *pTemp;
-      assert( b.nCell<nMaxCells );
-      b.szCell[b.nCell] = sz;
-      pTemp = &aSpace1[iSpace1];
-      iSpace1 += sz;
-      assert( sz<=pBt->maxLocal+23 );
-      assert( iSpace1 <= (int)pBt->pageSize );
-      memcpy(pTemp, apDiv[i], sz);
-      b.apCell[b.nCell] = pTemp+leafCorrection;
-      assert( leafCorrection==0 || leafCorrection==4 );
-      b.szCell[b.nCell] = b.szCell[b.nCell] - leafCorrection;
-      if( !pOld->leaf ){
-        assert( leafCorrection==0 );
-        assert( pOld->hdrOffset==0 );
-        /* The right pointer of the child page pOld becomes the left
-        ** pointer of the divider cell */
-        memcpy(b.apCell[b.nCell], &pOld->aData[8], 4);
-      }else{
-        assert( leafCorrection==4 );
-        while( b.szCell[b.nCell]<4 ){
-          /* Do not allow any cells smaller than 4 bytes. If a smaller cell
-          ** does exist, pad it with 0x00 bytes. */
-          assert( b.szCell[b.nCell]==3 || CORRUPT_DB );
-          assert( b.apCell[b.nCell]==&aSpace1[iSpace1-3] || CORRUPT_DB );
-          aSpace1[iSpace1++] = 0x00;
-          b.szCell[b.nCell]++;
-        }
-      }
-      b.nCell++;
-    }
-  }
-
-  /*
-  ** Figure out the number of pages needed to hold all b.nCell cells.
-  ** Store this number in "k".  Also compute szNew[] which is the total
-  ** size of all cells on the i-th page and cntNew[] which is the index
-  ** in b.apCell[] of the cell that divides page i from page i+1.  
-  ** cntNew[k] should equal b.nCell.
-  **
-  ** Values computed by this block:
-  **
-  **           k: The total number of sibling pages
-  **    szNew[i]: Spaced used on the i-th sibling page.
-  **   cntNew[i]: Index in b.apCell[] and b.szCell[] for the first cell to
-  **              the right of the i-th sibling page.
-  ** usableSpace: Number of bytes of space available on each sibling.
-  ** 
-  */
-  usableSpace = pBt->usableSize - 12 + leafCorrection;
-  for(i=k=0; i<nOld; i++, k++){
-    MemPage *p = apOld[i];
-    b.apEnd[k] = p->aDataEnd;
-    b.ixNx[k] = cntOld[i];
-    if( k && b.ixNx[k]==b.ixNx[k-1] ){
-      k--;  /* Omit b.ixNx[] entry for child pages with no cells */
-    }
-    if( !leafData ){
-      k++;
-      b.apEnd[k] = pParent->aDataEnd;
-      b.ixNx[k] = cntOld[i]+1;
-    }
-    assert( p->nFree>=0 );
-    szNew[i] = usableSpace - p->nFree;
-    for(j=0; j<p->nOverflow; j++){
-      szNew[i] += 2 + p->xCellSize(p, p->apOvfl[j]);
-    }
-    cntNew[i] = cntOld[i];
-  }
-  k = nOld;
-  for(i=0; i<k; i++){
-    int sz;
-    while( szNew[i]>usableSpace ){
-      if( i+1>=k ){
-        k = i+2;
-        if( k>NB+2 ){ rc = SQLITE_CORRUPT_BKPT; goto balance_cleanup; }
-        szNew[k-1] = 0;
-        cntNew[k-1] = b.nCell;
-      }
-      sz = 2 + cachedCellSize(&b, cntNew[i]-1);
-      szNew[i] -= sz;
-      if( !leafData ){
-        if( cntNew[i]<b.nCell ){
-          sz = 2 + cachedCellSize(&b, cntNew[i]);
-        }else{
-          sz = 0;
-        }
-      }
-      szNew[i+1] += sz;
-      cntNew[i]--;
-    }
-    while( cntNew[i]<b.nCell ){
-      sz = 2 + cachedCellSize(&b, cntNew[i]);
-      if( szNew[i]+sz>usableSpace ) break;
-      szNew[i] += sz;
-      cntNew[i]++;
-      if( !leafData ){
-        if( cntNew[i]<b.nCell ){
-          sz = 2 + cachedCellSize(&b, cntNew[i]);
-        }else{
-          sz = 0;
-        }
-      }
-      szNew[i+1] -= sz;
-    }
-    if( cntNew[i]>=b.nCell ){
-      k = i+1;
-    }else if( cntNew[i] <= (i>0 ? cntNew[i-1] : 0) ){
-      rc = SQLITE_CORRUPT_BKPT;
-      goto balance_cleanup;
-    }
-  }
-
-  /*
-  ** The packing computed by the previous block is biased toward the siblings
-  ** on the left side (siblings with smaller keys). The left siblings are
-  ** always nearly full, while the right-most sibling might be nearly empty.
-  ** The next block of code attempts to adjust the packing of siblings to
-  ** get a better balance.
-  **
-  ** This adjustment is more than an optimization.  The packing above might
-  ** be so out of balance as to be illegal.  For example, the right-most
-  ** sibling might be completely empty.  This adjustment is not optional.
-  */
-  for(i=k-1; i>0; i--){
-    int szRight = szNew[i];  /* Size of sibling on the right */
-    int szLeft = szNew[i-1]; /* Size of sibling on the left */
-    int r;              /* Index of right-most cell in left sibling */
-    int d;              /* Index of first cell to the left of right sibling */
-
-    r = cntNew[i-1] - 1;
-    d = r + 1 - leafData;
-    (void)cachedCellSize(&b, d);
-    do{
-      assert( d<nMaxCells );
-      assert( r<nMaxCells );
-      (void)cachedCellSize(&b, r);
-      if( szRight!=0
-       && (bBulk || szRight+b.szCell[d]+2 > szLeft-(b.szCell[r]+(i==k-1?0:2)))){
-        break;
-      }
-      szRight += b.szCell[d] + 2;
-      szLeft -= b.szCell[r] + 2;
-      cntNew[i-1] = r;
-      r--;
-      d--;
-    }while( r>=0 );
-    szNew[i] = szRight;
-    szNew[i-1] = szLeft;
-    if( cntNew[i-1] <= (i>1 ? cntNew[i-2] : 0) ){
-      rc = SQLITE_CORRUPT_BKPT;
-      goto balance_cleanup;
-    }
-  }
-
-  /* Sanity check:  For a non-corrupt database file one of the follwing
-  ** must be true:
-  **    (1) We found one or more cells (cntNew[0])>0), or
-  **    (2) pPage is a virtual root page.  A virtual root page is when
-  **        the real root page is page 1 and we are the only child of
-  **        that page.
-  */
-  assert( cntNew[0]>0 || (pParent->pgno==1 && pParent->nCell==0) || CORRUPT_DB);
-  TRACE(("BALANCE: old: %d(nc=%d) %d(nc=%d) %d(nc=%d)\n",
-    apOld[0]->pgno, apOld[0]->nCell,
-    nOld>=2 ? apOld[1]->pgno : 0, nOld>=2 ? apOld[1]->nCell : 0,
-    nOld>=3 ? apOld[2]->pgno : 0, nOld>=3 ? apOld[2]->nCell : 0
-  ));
-
-  /*
-  ** Allocate k new pages.  Reuse old pages where possible.
-  */
-  pageFlags = apOld[0]->aData[0];
-  for(i=0; i<k; i++){
-    MemPage *pNew;
-    if( i<nOld ){
-      pNew = apNew[i] = apOld[i];
-      apOld[i] = 0;
-      rc = tdsqlite3PagerWrite(pNew->pDbPage);
-      nNew++;
-      if( rc ) goto balance_cleanup;
-    }else{
-      assert( i>0 );
-      rc = allocateBtreePage(pBt, &pNew, &pgno, (bBulk ? 1 : pgno), 0);
-      if( rc ) goto balance_cleanup;
-      zeroPage(pNew, pageFlags);
-      apNew[i] = pNew;
-      nNew++;
-      cntOld[i] = b.nCell;
-
-      /* Set the pointer-map entry for the new sibling page. */
-      if( ISAUTOVACUUM ){
-        ptrmapPut(pBt, pNew->pgno, PTRMAP_BTREE, pParent->pgno, &rc);
-        if( rc!=SQLITE_OK ){
-          goto balance_cleanup;
-        }
-      }
-    }
-  }
-
-  /*
-  ** Reassign page numbers so that the new pages are in ascending order. 
-  ** This helps to keep entries in the disk file in order so that a scan
-  ** of the table is closer to a linear scan through the file. That in turn 
-  ** helps the operating system to deliver pages from the disk more rapidly.
-  **
-  ** An O(n^2) insertion sort algorithm is used, but since n is never more 
-  ** than (NB+2) (a small constant), that should not be a problem.
-  **
-  ** When NB==3, this one optimization makes the database about 25% faster 
-  ** for large insertions and deletions.
-  */
-  for(i=0; i<nNew; i++){
-    aPgOrder[i] = aPgno[i] = apNew[i]->pgno;
-    aPgFlags[i] = apNew[i]->pDbPage->flags;
-    for(j=0; j<i; j++){
-      if( aPgno[j]==aPgno[i] ){
-        /* This branch is taken if the set of sibling pages somehow contains
-        ** duplicate entries. This can happen if the database is corrupt. 
-        ** It would be simpler to detect this as part of the loop below, but
-        ** we do the detection here in order to avoid populating the pager
-        ** cache with two separate objects associated with the same
-        ** page number.  */
-        assert( CORRUPT_DB );
-        rc = SQLITE_CORRUPT_BKPT;
-        goto balance_cleanup;
-      }
-    }
-  }
-  for(i=0; i<nNew; i++){
-    int iBest = 0;                /* aPgno[] index of page number to use */
-    for(j=1; j<nNew; j++){
-      if( aPgOrder[j]<aPgOrder[iBest] ) iBest = j;
-    }
-    pgno = aPgOrder[iBest];
-    aPgOrder[iBest] = 0xffffffff;
-    if( iBest!=i ){
-      if( iBest>i ){
-        tdsqlite3PagerRekey(apNew[iBest]->pDbPage, pBt->nPage+iBest+1, 0);
-      }
-      tdsqlite3PagerRekey(apNew[i]->pDbPage, pgno, aPgFlags[iBest]);
-      apNew[i]->pgno = pgno;
-    }
-  }
-
-  TRACE(("BALANCE: new: %d(%d nc=%d) %d(%d nc=%d) %d(%d nc=%d) "
-         "%d(%d nc=%d) %d(%d nc=%d)\n",
-    apNew[0]->pgno, szNew[0], cntNew[0],
-    nNew>=2 ? apNew[1]->pgno : 0, nNew>=2 ? szNew[1] : 0,
-    nNew>=2 ? cntNew[1] - cntNew[0] - !leafData : 0,
-    nNew>=3 ? apNew[2]->pgno : 0, nNew>=3 ? szNew[2] : 0,
-    nNew>=3 ? cntNew[2] - cntNew[1] - !leafData : 0,
-    nNew>=4 ? apNew[3]->pgno : 0, nNew>=4 ? szNew[3] : 0,
-    nNew>=4 ? cntNew[3] - cntNew[2] - !leafData : 0,
-    nNew>=5 ? apNew[4]->pgno : 0, nNew>=5 ? szNew[4] : 0,
-    nNew>=5 ? cntNew[4] - cntNew[3] - !leafData : 0
-  ));
-
-  assert( tdsqlite3PagerIswriteable(pParent->pDbPage) );
-  assert( nNew>=1 && nNew<=ArraySize(apNew) );
-  assert( apNew[nNew-1]!=0 );
-  put4byte(pRight, apNew[nNew-1]->pgno);
-
-  /* If the sibling pages are not leaves, ensure that the right-child pointer
-  ** of the right-most new sibling page is set to the value that was 
-  ** originally in the same field of the right-most old sibling page. */
-  if( (pageFlags & PTF_LEAF)==0 && nOld!=nNew ){
-    MemPage *pOld = (nNew>nOld ? apNew : apOld)[nOld-1];
-    memcpy(&apNew[nNew-1]->aData[8], &pOld->aData[8], 4);
-  }
-
-  /* Make any required updates to pointer map entries associated with 
-  ** cells stored on sibling pages following the balance operation. Pointer
-  ** map entries associated with divider cells are set by the insertCell()
-  ** routine. The associated pointer map entries are:
-  **
-  **   a) if the cell contains a reference to an overflow chain, the
-  **      entry associated with the first page in the overflow chain, and
-  **
-  **   b) if the sibling pages are not leaves, the child page associated
-  **      with the cell.
-  **
-  ** If the sibling pages are not leaves, then the pointer map entry 
-  ** associated with the right-child of each sibling may also need to be 
-  ** updated. This happens below, after the sibling pages have been 
-  ** populated, not here.
-  */
-  if( ISAUTOVACUUM ){
-    MemPage *pOld;
-    MemPage *pNew = pOld = apNew[0];
-    int cntOldNext = pNew->nCell + pNew->nOverflow;
-    int iNew = 0;
-    int iOld = 0;
-
-    for(i=0; i<b.nCell; i++){
-      u8 *pCell = b.apCell[i];
-      while( i==cntOldNext ){
-        iOld++;
-        assert( iOld<nNew || iOld<nOld );
-        assert( iOld>=0 && iOld<NB );
-        pOld = iOld<nNew ? apNew[iOld] : apOld[iOld];
-        cntOldNext += pOld->nCell + pOld->nOverflow + !leafData;
-      }
-      if( i==cntNew[iNew] ){
-        pNew = apNew[++iNew];
-        if( !leafData ) continue;
-      }
-
-      /* Cell pCell is destined for new sibling page pNew. Originally, it
-      ** was either part of sibling page iOld (possibly an overflow cell), 
-      ** or else the divider cell to the left of sibling page iOld. So,
-      ** if sibling page iOld had the same page number as pNew, and if
-      ** pCell really was a part of sibling page iOld (not a divider or
-      ** overflow cell), we can skip updating the pointer map entries.  */
-      if( iOld>=nNew
-       || pNew->pgno!=aPgno[iOld]
-       || !SQLITE_WITHIN(pCell,pOld->aData,pOld->aDataEnd)
-      ){
-        if( !leafCorrection ){
-          ptrmapPut(pBt, get4byte(pCell), PTRMAP_BTREE, pNew->pgno, &rc);
-        }
-        if( cachedCellSize(&b,i)>pNew->minLocal ){
-          ptrmapPutOvflPtr(pNew, pOld, pCell, &rc);
-        }
-        if( rc ) goto balance_cleanup;
-      }
-    }
-  }
-
-  /* Insert new divider cells into pParent. */
-  for(i=0; i<nNew-1; i++){
-    u8 *pCell;
-    u8 *pTemp;
-    int sz;
-    MemPage *pNew = apNew[i];
-    j = cntNew[i];
-
-    assert( j<nMaxCells );
-    assert( b.apCell[j]!=0 );
-    pCell = b.apCell[j];
-    sz = b.szCell[j] + leafCorrection;
-    pTemp = &aOvflSpace[iOvflSpace];
-    if( !pNew->leaf ){
-      memcpy(&pNew->aData[8], pCell, 4);
-    }else if( leafData ){
-      /* If the tree is a leaf-data tree, and the siblings are leaves, 
-      ** then there is no divider cell in b.apCell[]. Instead, the divider 
-      ** cell consists of the integer key for the right-most cell of 
-      ** the sibling-page assembled above only.
-      */
-      CellInfo info;
-      j--;
-      pNew->xParseCell(pNew, b.apCell[j], &info);
-      pCell = pTemp;
-      sz = 4 + putVarint(&pCell[4], info.nKey);
-      pTemp = 0;
-    }else{
-      pCell -= 4;
-      /* Obscure case for non-leaf-data trees: If the cell at pCell was
-      ** previously stored on a leaf node, and its reported size was 4
-      ** bytes, then it may actually be smaller than this 
-      ** (see btreeParseCellPtr(), 4 bytes is the minimum size of
-      ** any cell). But it is important to pass the correct size to 
-      ** insertCell(), so reparse the cell now.
-      **
-      ** This can only happen for b-trees used to evaluate "IN (SELECT ...)"
-      ** and WITHOUT ROWID tables with exactly one column which is the
-      ** primary key.
-      */
-      if( b.szCell[j]==4 ){
-        assert(leafCorrection==4);
-        sz = pParent->xCellSize(pParent, pCell);
-      }
-    }
-    iOvflSpace += sz;
-    assert( sz<=pBt->maxLocal+23 );
-    assert( iOvflSpace <= (int)pBt->pageSize );
-    insertCell(pParent, nxDiv+i, pCell, sz, pTemp, pNew->pgno, &rc);
-    if( rc!=SQLITE_OK ) goto balance_cleanup;
-    assert( tdsqlite3PagerIswriteable(pParent->pDbPage) );
-  }
-
-  /* Now update the actual sibling pages. The order in which they are updated
-  ** is important, as this code needs to avoid disrupting any page from which
-  ** cells may still to be read. In practice, this means:
-  **
-  **  (1) If cells are moving left (from apNew[iPg] to apNew[iPg-1])
-  **      then it is not safe to update page apNew[iPg] until after
-  **      the left-hand sibling apNew[iPg-1] has been updated.
-  **
-  **  (2) If cells are moving right (from apNew[iPg] to apNew[iPg+1])
-  **      then it is not safe to update page apNew[iPg] until after
-  **      the right-hand sibling apNew[iPg+1] has been updated.
-  **
-  ** If neither of the above apply, the page is safe to update.
-  **
-  ** The iPg value in the following loop starts at nNew-1 goes down
-  ** to 0, then back up to nNew-1 again, thus making two passes over
-  ** the pages.  On the initial downward pass, only condition (1) above
-  ** needs to be tested because (2) will always be true from the previous
-  ** step.  On the upward pass, both conditions are always true, so the
-  ** upwards pass simply processes pages that were missed on the downward
-  ** pass.
-  */
-  for(i=1-nNew; i<nNew; i++){
-    int iPg = i<0 ? -i : i;
-    assert( iPg>=0 && iPg<nNew );
-    if( abDone[iPg] ) continue;         /* Skip pages already processed */
-    if( i>=0                            /* On the upwards pass, or... */
-     || cntOld[iPg-1]>=cntNew[iPg-1]    /* Condition (1) is true */
-    ){
-      int iNew;
-      int iOld;
-      int nNewCell;
-
-      /* Verify condition (1):  If cells are moving left, update iPg
-      ** only after iPg-1 has already been updated. */
-      assert( iPg==0 || cntOld[iPg-1]>=cntNew[iPg-1] || abDone[iPg-1] );
-
-      /* Verify condition (2):  If cells are moving right, update iPg
-      ** only after iPg+1 has already been updated. */
-      assert( cntNew[iPg]>=cntOld[iPg] || abDone[iPg+1] );
-
-      if( iPg==0 ){
-        iNew = iOld = 0;
-        nNewCell = cntNew[0];
-      }else{
-        iOld = iPg<nOld ? (cntOld[iPg-1] + !leafData) : b.nCell;
-        iNew = cntNew[iPg-1] + !leafData;
-        nNewCell = cntNew[iPg] - iNew;
-      }
-
-      rc = editPage(apNew[iPg], iOld, iNew, nNewCell, &b);
-      if( rc ) goto balance_cleanup;
-      abDone[iPg]++;
-      apNew[iPg]->nFree = usableSpace-szNew[iPg];
-      assert( apNew[iPg]->nOverflow==0 );
-      assert( apNew[iPg]->nCell==nNewCell );
-    }
-  }
-
-  /* All pages have been processed exactly once */
-  assert( memcmp(abDone, "\01\01\01\01\01", nNew)==0 );
-
-  assert( nOld>0 );
-  assert( nNew>0 );
-
-  if( isRoot && pParent->nCell==0 && pParent->hdrOffset<=apNew[0]->nFree ){
-    /* The root page of the b-tree now contains no cells. The only sibling
-    ** page is the right-child of the parent. Copy the contents of the
-    ** child page into the parent, decreasing the overall height of the
-    ** b-tree structure by one. This is described as the "balance-shallower"
-    ** sub-algorithm in some documentation.
-    **
-    ** If this is an auto-vacuum database, the call to copyNodeContent() 
-    ** sets all pointer-map entries corresponding to database image pages 
-    ** for which the pointer is stored within the content being copied.
-    **
-    ** It is critical that the child page be defragmented before being
-    ** copied into the parent, because if the parent is page 1 then it will
-    ** by smaller than the child due to the database header, and so all the
-    ** free space needs to be up front.
-    */
-    assert( nNew==1 || CORRUPT_DB );
-    rc = defragmentPage(apNew[0], -1);
-    testcase( rc!=SQLITE_OK );
-    assert( apNew[0]->nFree == 
-        (get2byteNotZero(&apNew[0]->aData[5]) - apNew[0]->cellOffset
-          - apNew[0]->nCell*2)
-      || rc!=SQLITE_OK
-    );
-    copyNodeContent(apNew[0], pParent, &rc);
-    freePage(apNew[0], &rc);
-  }else if( ISAUTOVACUUM && !leafCorrection ){
-    /* Fix the pointer map entries associated with the right-child of each
-    ** sibling page. All other pointer map entries have already been taken
-    ** care of.  */
-    for(i=0; i<nNew; i++){
-      u32 key = get4byte(&apNew[i]->aData[8]);
-      ptrmapPut(pBt, key, PTRMAP_BTREE, apNew[i]->pgno, &rc);
-    }
-  }
-
-  assert( pParent->isInit );
-  TRACE(("BALANCE: finished: old=%d new=%d cells=%d\n",
-          nOld, nNew, b.nCell));
-
-  /* Free any old pages that were not reused as new pages.
-  */
-  for(i=nNew; i<nOld; i++){
-    freePage(apOld[i], &rc);
-  }
-
-#if 0
-  if( ISAUTOVACUUM && rc==SQLITE_OK && apNew[0]->isInit ){
-    /* The ptrmapCheckPages() contains assert() statements that verify that
-    ** all pointer map pages are set correctly. This is helpful while 
-    ** debugging. This is usually disabled because a corrupt database may
-    ** cause an assert() statement to fail.  */
-    ptrmapCheckPages(apNew, nNew);
-    ptrmapCheckPages(&pParent, 1);
-  }
-#endif
-
-  /*
-  ** Cleanup before returning.
-  */
-balance_cleanup:
-  tdsqlite3StackFree(0, b.apCell);
-  for(i=0; i<nOld; i++){
-    releasePage(apOld[i]);
-  }
-  for(i=0; i<nNew; i++){
-    releasePage(apNew[i]);
-  }
-
-  return rc;
-}
-
-
-/*
-** This function is called when the root page of a b-tree structure is
-** overfull (has one or more overflow pages).
-**
-** A new child page is allocated and the contents of the current root
-** page, including overflow cells, are copied into the child. The root
-** page is then overwritten to make it an empty page with the right-child 
-** pointer pointing to the new page.
-**
-** Before returning, all pointer-map entries corresponding to pages 
-** that the new child-page now contains pointers to are updated. The
-** entry corresponding to the new right-child pointer of the root
-** page is also updated.
-**
-** If successful, *ppChild is set to contain a reference to the child 
-** page and SQLITE_OK is returned. In this case the caller is required
-** to call releasePage() on *ppChild exactly once. If an error occurs,
-** an error code is returned and *ppChild is set to 0.
-*/
-static int balance_deeper(MemPage *pRoot, MemPage **ppChild){
-  int rc;                        /* Return value from subprocedures */
-  MemPage *pChild = 0;           /* Pointer to a new child page */
-  Pgno pgnoChild = 0;            /* Page number of the new child page */
-  BtShared *pBt = pRoot->pBt;    /* The BTree */
-
-  assert( pRoot->nOverflow>0 );
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-
-  /* Make pRoot, the root page of the b-tree, writable. Allocate a new 
-  ** page that will become the new right-child of pPage. Copy the contents
-  ** of the node stored on pRoot into the new child page.
-  */
-  rc = tdsqlite3PagerWrite(pRoot->pDbPage);
-  if( rc==SQLITE_OK ){
-    rc = allocateBtreePage(pBt,&pChild,&pgnoChild,pRoot->pgno,0);
-    copyNodeContent(pRoot, pChild, &rc);
-    if( ISAUTOVACUUM ){
-      ptrmapPut(pBt, pgnoChild, PTRMAP_BTREE, pRoot->pgno, &rc);
-    }
-  }
-  if( rc ){
-    *ppChild = 0;
-    releasePage(pChild);
-    return rc;
-  }
-  assert( tdsqlite3PagerIswriteable(pChild->pDbPage) );
-  assert( tdsqlite3PagerIswriteable(pRoot->pDbPage) );
-  assert( pChild->nCell==pRoot->nCell || CORRUPT_DB );
-
-  TRACE(("BALANCE: copy root %d into %d\n", pRoot->pgno, pChild->pgno));
-
-  /* Copy the overflow cells from pRoot to pChild */
-  memcpy(pChild->aiOvfl, pRoot->aiOvfl,
-         pRoot->nOverflow*sizeof(pRoot->aiOvfl[0]));
-  memcpy(pChild->apOvfl, pRoot->apOvfl,
-         pRoot->nOverflow*sizeof(pRoot->apOvfl[0]));
-  pChild->nOverflow = pRoot->nOverflow;
-
-  /* Zero the contents of pRoot. Then install pChild as the right-child. */
-  zeroPage(pRoot, pChild->aData[0] & ~PTF_LEAF);
-  put4byte(&pRoot->aData[pRoot->hdrOffset+8], pgnoChild);
-
-  *ppChild = pChild;
-  return SQLITE_OK;
-}
-
-/*
-** Return SQLITE_CORRUPT if any cursor other than pCur is currently valid
-** on the same B-tree as pCur.
-**
-** This can if a database is corrupt with two or more SQL tables
-** pointing to the same b-tree.  If an insert occurs on one SQL table
-** and causes a BEFORE TRIGGER to do a secondary insert on the other SQL
-** table linked to the same b-tree.  If the secondary insert causes a
-** rebalance, that can change content out from under the cursor on the
-** first SQL table, violating invariants on the first insert.
-*/
-static int anotherValidCursor(BtCursor *pCur){
-  BtCursor *pOther;
-  for(pOther=pCur->pBt->pCursor; pOther; pOther=pOther->pNext){
-    if( pOther!=pCur
-     && pOther->eState==CURSOR_VALID
-     && pOther->pPage==pCur->pPage
-    ){
-      return SQLITE_CORRUPT_BKPT;
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** The page that pCur currently points to has just been modified in
-** some way. This function figures out if this modification means the
-** tree needs to be balanced, and if so calls the appropriate balancing 
-** routine. Balancing routines are:
-**
-**   balance_quick()
-**   balance_deeper()
-**   balance_nonroot()
-*/
-static int balance(BtCursor *pCur){
-  int rc = SQLITE_OK;
-  const int nMin = pCur->pBt->usableSize * 2 / 3;
-  u8 aBalanceQuickSpace[13];
-  u8 *pFree = 0;
-
-  VVA_ONLY( int balance_quick_called = 0 );
-  VVA_ONLY( int balance_deeper_called = 0 );
-
-  do {
-    int iPage;
-    MemPage *pPage = pCur->pPage;
-
-    if( NEVER(pPage->nFree<0) && btreeComputeFreeSpace(pPage) ) break;
-    if( pPage->nOverflow==0 && pPage->nFree<=nMin ){
-      break;
-    }else if( (iPage = pCur->iPage)==0 ){
-      if( pPage->nOverflow && (rc = anotherValidCursor(pCur))==SQLITE_OK ){
-        /* The root page of the b-tree is overfull. In this case call the
-        ** balance_deeper() function to create a new child for the root-page
-        ** and copy the current contents of the root-page to it. The
-        ** next iteration of the do-loop will balance the child page.
-        */ 
-        assert( balance_deeper_called==0 );
-        VVA_ONLY( balance_deeper_called++ );
-        rc = balance_deeper(pPage, &pCur->apPage[1]);
-        if( rc==SQLITE_OK ){
-          pCur->iPage = 1;
-          pCur->ix = 0;
-          pCur->aiIdx[0] = 0;
-          pCur->apPage[0] = pPage;
-          pCur->pPage = pCur->apPage[1];
-          assert( pCur->pPage->nOverflow );
-        }
-      }else{
-        break;
-      }
-    }else{
-      MemPage * const pParent = pCur->apPage[iPage-1];
-      int const iIdx = pCur->aiIdx[iPage-1];
-
-      rc = tdsqlite3PagerWrite(pParent->pDbPage);
-      if( rc==SQLITE_OK && pParent->nFree<0 ){
-        rc = btreeComputeFreeSpace(pParent);
-      }
-      if( rc==SQLITE_OK ){
-#ifndef SQLITE_OMIT_QUICKBALANCE
-        if( pPage->intKeyLeaf
-         && pPage->nOverflow==1
-         && pPage->aiOvfl[0]==pPage->nCell
-         && pParent->pgno!=1
-         && pParent->nCell==iIdx
-        ){
-          /* Call balance_quick() to create a new sibling of pPage on which
-          ** to store the overflow cell. balance_quick() inserts a new cell
-          ** into pParent, which may cause pParent overflow. If this
-          ** happens, the next iteration of the do-loop will balance pParent 
-          ** use either balance_nonroot() or balance_deeper(). Until this
-          ** happens, the overflow cell is stored in the aBalanceQuickSpace[]
-          ** buffer. 
-          **
-          ** The purpose of the following assert() is to check that only a
-          ** single call to balance_quick() is made for each call to this
-          ** function. If this were not verified, a subtle bug involving reuse
-          ** of the aBalanceQuickSpace[] might sneak in.
-          */
-          assert( balance_quick_called==0 ); 
-          VVA_ONLY( balance_quick_called++ );
-          rc = balance_quick(pParent, pPage, aBalanceQuickSpace);
-        }else
-#endif
-        {
-          /* In this case, call balance_nonroot() to redistribute cells
-          ** between pPage and up to 2 of its sibling pages. This involves
-          ** modifying the contents of pParent, which may cause pParent to
-          ** become overfull or underfull. The next iteration of the do-loop
-          ** will balance the parent page to correct this.
-          ** 
-          ** If the parent page becomes overfull, the overflow cell or cells
-          ** are stored in the pSpace buffer allocated immediately below. 
-          ** A subsequent iteration of the do-loop will deal with this by
-          ** calling balance_nonroot() (balance_deeper() may be called first,
-          ** but it doesn't deal with overflow cells - just moves them to a
-          ** different page). Once this subsequent call to balance_nonroot() 
-          ** has completed, it is safe to release the pSpace buffer used by
-          ** the previous call, as the overflow cell data will have been 
-          ** copied either into the body of a database page or into the new
-          ** pSpace buffer passed to the latter call to balance_nonroot().
-          */
-          u8 *pSpace = tdsqlite3PageMalloc(pCur->pBt->pageSize);
-          rc = balance_nonroot(pParent, iIdx, pSpace, iPage==1,
-                               pCur->hints&BTREE_BULKLOAD);
-          if( pFree ){
-            /* If pFree is not NULL, it points to the pSpace buffer used 
-            ** by a previous call to balance_nonroot(). Its contents are
-            ** now stored either on real database pages or within the 
-            ** new pSpace buffer, so it may be safely freed here. */
-            tdsqlite3PageFree(pFree);
-          }
-
-          /* The pSpace buffer will be freed after the next call to
-          ** balance_nonroot(), or just before this function returns, whichever
-          ** comes first. */
-          pFree = pSpace;
-        }
-      }
-
-      pPage->nOverflow = 0;
-
-      /* The next iteration of the do-loop balances the parent page. */
-      releasePage(pPage);
-      pCur->iPage--;
-      assert( pCur->iPage>=0 );
-      pCur->pPage = pCur->apPage[pCur->iPage];
-    }
-  }while( rc==SQLITE_OK );
-
-  if( pFree ){
-    tdsqlite3PageFree(pFree);
-  }
-  return rc;
-}
-
-/* Overwrite content from pX into pDest.  Only do the write if the
-** content is different from what is already there.
-*/
-static int btreeOverwriteContent(
-  MemPage *pPage,           /* MemPage on which writing will occur */
-  u8 *pDest,                /* Pointer to the place to start writing */
-  const BtreePayload *pX,   /* Source of data to write */
-  int iOffset,              /* Offset of first byte to write */
-  int iAmt                  /* Number of bytes to be written */
-){
-  int nData = pX->nData - iOffset;
-  if( nData<=0 ){
-    /* Overwritting with zeros */
-    int i;
-    for(i=0; i<iAmt && pDest[i]==0; i++){}
-    if( i<iAmt ){
-      int rc = tdsqlite3PagerWrite(pPage->pDbPage);
-      if( rc ) return rc;
-      memset(pDest + i, 0, iAmt - i);
-    }
-  }else{
-    if( nData<iAmt ){
-      /* Mixed read data and zeros at the end.  Make a recursive call
-      ** to write the zeros then fall through to write the real data */
-      int rc = btreeOverwriteContent(pPage, pDest+nData, pX, iOffset+nData,
-                                 iAmt-nData);
-      if( rc ) return rc;
-      iAmt = nData;
-    }
-    if( memcmp(pDest, ((u8*)pX->pData) + iOffset, iAmt)!=0 ){
-      int rc = tdsqlite3PagerWrite(pPage->pDbPage);
-      if( rc ) return rc;
-      /* In a corrupt database, it is possible for the source and destination
-      ** buffers to overlap.  This is harmless since the database is already
-      ** corrupt but it does cause valgrind and ASAN warnings.  So use
-      ** memmove(). */
-      memmove(pDest, ((u8*)pX->pData) + iOffset, iAmt);
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Overwrite the cell that cursor pCur is pointing to with fresh content
-** contained in pX.
-*/
-static int btreeOverwriteCell(BtCursor *pCur, const BtreePayload *pX){
-  int iOffset;                        /* Next byte of pX->pData to write */
-  int nTotal = pX->nData + pX->nZero; /* Total bytes of to write */
-  int rc;                             /* Return code */
-  MemPage *pPage = pCur->pPage;       /* Page being written */
-  BtShared *pBt;                      /* Btree */
-  Pgno ovflPgno;                      /* Next overflow page to write */
-  u32 ovflPageSize;                   /* Size to write on overflow page */
-
-  if( pCur->info.pPayload + pCur->info.nLocal > pPage->aDataEnd
-   || pCur->info.pPayload < pPage->aData + pPage->cellOffset
-  ){
-    return SQLITE_CORRUPT_BKPT;
-  }
-  /* Overwrite the local portion first */
-  rc = btreeOverwriteContent(pPage, pCur->info.pPayload, pX,
-                             0, pCur->info.nLocal);
-  if( rc ) return rc;
-  if( pCur->info.nLocal==nTotal ) return SQLITE_OK;
-
-  /* Now overwrite the overflow pages */
-  iOffset = pCur->info.nLocal;
-  assert( nTotal>=0 );
-  assert( iOffset>=0 );
-  ovflPgno = get4byte(pCur->info.pPayload + iOffset);
-  pBt = pPage->pBt;
-  ovflPageSize = pBt->usableSize - 4;
-  do{
-    rc = btreeGetPage(pBt, ovflPgno, &pPage, 0);
-    if( rc ) return rc;
-    if( tdsqlite3PagerPageRefcount(pPage->pDbPage)!=1 ){
-      rc = SQLITE_CORRUPT_BKPT;
-    }else{
-      if( iOffset+ovflPageSize<(u32)nTotal ){
-        ovflPgno = get4byte(pPage->aData);
-      }else{
-        ovflPageSize = nTotal - iOffset;
-      }
-      rc = btreeOverwriteContent(pPage, pPage->aData+4, pX,
-                                 iOffset, ovflPageSize);
-    }
-    tdsqlite3PagerUnref(pPage->pDbPage);
-    if( rc ) return rc;
-    iOffset += ovflPageSize;
-  }while( iOffset<nTotal );
-  return SQLITE_OK;    
-}
-
-
-/*
-** Insert a new record into the BTree.  The content of the new record
-** is described by the pX object.  The pCur cursor is used only to
-** define what table the record should be inserted into, and is left
-** pointing at a random location.
-**
-** For a table btree (used for rowid tables), only the pX.nKey value of
-** the key is used. The pX.pKey value must be NULL.  The pX.nKey is the
-** rowid or INTEGER PRIMARY KEY of the row.  The pX.nData,pData,nZero fields
-** hold the content of the row.
-**
-** For an index btree (used for indexes and WITHOUT ROWID tables), the
-** key is an arbitrary byte sequence stored in pX.pKey,nKey.  The 
-** pX.pData,nData,nZero fields must be zero.
-**
-** If the seekResult parameter is non-zero, then a successful call to
-** MovetoUnpacked() to seek cursor pCur to (pKey,nKey) has already
-** been performed.  In other words, if seekResult!=0 then the cursor
-** is currently pointing to a cell that will be adjacent to the cell
-** to be inserted.  If seekResult<0 then pCur points to a cell that is
-** smaller then (pKey,nKey).  If seekResult>0 then pCur points to a cell
-** that is larger than (pKey,nKey).
-**
-** If seekResult==0, that means pCur is pointing at some unknown location.
-** In that case, this routine must seek the cursor to the correct insertion
-** point for (pKey,nKey) before doing the insertion.  For index btrees,
-** if pX->nMem is non-zero, then pX->aMem contains pointers to the unpacked
-** key values and pX->aMem can be used instead of pX->pKey to avoid having
-** to decode the key.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeInsert(
-  BtCursor *pCur,                /* Insert data into the table of this cursor */
-  const BtreePayload *pX,        /* Content of the row to be inserted */
-  int flags,                     /* True if this is likely an append */
-  int seekResult                 /* Result of prior MovetoUnpacked() call */
-){
-  int rc;
-  int loc = seekResult;          /* -1: before desired location  +1: after */
-  int szNew = 0;
-  int idx;
-  MemPage *pPage;
-  Btree *p = pCur->pBtree;
-  BtShared *pBt = p->pBt;
-  unsigned char *oldCell;
-  unsigned char *newCell = 0;
-
-  assert( (flags & (BTREE_SAVEPOSITION|BTREE_APPEND))==flags );
-
-  if( pCur->eState==CURSOR_FAULT ){
-    assert( pCur->skipNext!=SQLITE_OK );
-    return pCur->skipNext;
-  }
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( (pCur->curFlags & BTCF_WriteFlag)!=0
-              && pBt->inTransaction==TRANS_WRITE
-              && (pBt->btsFlags & BTS_READ_ONLY)==0 );
-  assert( hasSharedCacheTableLock(p, pCur->pgnoRoot, pCur->pKeyInfo!=0, 2) );
-
-  /* Assert that the caller has been consistent. If this cursor was opened
-  ** expecting an index b-tree, then the caller should be inserting blob
-  ** keys with no associated data. If the cursor was opened expecting an
-  ** intkey table, the caller should be inserting integer keys with a
-  ** blob of associated data.  */
-  assert( (pX->pKey==0)==(pCur->pKeyInfo==0) );
-
-  /* Save the positions of any other cursors open on this table.
-  **
-  ** In some cases, the call to btreeMoveto() below is a no-op. For
-  ** example, when inserting data into a table with auto-generated integer
-  ** keys, the VDBE layer invokes tdsqlite3BtreeLast() to figure out the 
-  ** integer key to use. It then calls this function to actually insert the 
-  ** data into the intkey B-Tree. In this case btreeMoveto() recognizes
-  ** that the cursor is already where it needs to be and returns without
-  ** doing any work. To avoid thwarting these optimizations, it is important
-  ** not to clear the cursor here.
-  */
-  if( pCur->curFlags & BTCF_Multiple ){
-    rc = saveAllCursors(pBt, pCur->pgnoRoot, pCur);
-    if( rc ) return rc;
-  }
-
-  if( pCur->pKeyInfo==0 ){
-    assert( pX->pKey==0 );
-    /* If this is an insert into a table b-tree, invalidate any incrblob 
-    ** cursors open on the row being replaced */
-    invalidateIncrblobCursors(p, pCur->pgnoRoot, pX->nKey, 0);
-
-    /* If BTREE_SAVEPOSITION is set, the cursor must already be pointing 
-    ** to a row with the same key as the new entry being inserted.
-    */
-#ifdef SQLITE_DEBUG
-    if( flags & BTREE_SAVEPOSITION ){
-      assert( pCur->curFlags & BTCF_ValidNKey );
-      assert( pX->nKey==pCur->info.nKey );
-      assert( loc==0 );
-    }
-#endif
-
-    /* On the other hand, BTREE_SAVEPOSITION==0 does not imply
-    ** that the cursor is not pointing to a row to be overwritten.
-    ** So do a complete check.
-    */
-    if( (pCur->curFlags&BTCF_ValidNKey)!=0 && pX->nKey==pCur->info.nKey ){
-      /* The cursor is pointing to the entry that is to be
-      ** overwritten */
-      assert( pX->nData>=0 && pX->nZero>=0 );
-      if( pCur->info.nSize!=0
-       && pCur->info.nPayload==(u32)pX->nData+pX->nZero
-      ){
-        /* New entry is the same size as the old.  Do an overwrite */
-        return btreeOverwriteCell(pCur, pX);
-      }
-      assert( loc==0 );
-    }else if( loc==0 ){
-      /* The cursor is *not* pointing to the cell to be overwritten, nor
-      ** to an adjacent cell.  Move the cursor so that it is pointing either
-      ** to the cell to be overwritten or an adjacent cell.
-      */
-      rc = tdsqlite3BtreeMovetoUnpacked(pCur, 0, pX->nKey, flags!=0, &loc);
-      if( rc ) return rc;
-    }
-  }else{
-    /* This is an index or a WITHOUT ROWID table */
-
-    /* If BTREE_SAVEPOSITION is set, the cursor must already be pointing 
-    ** to a row with the same key as the new entry being inserted.
-    */
-    assert( (flags & BTREE_SAVEPOSITION)==0 || loc==0 );
-
-    /* If the cursor is not already pointing either to the cell to be
-    ** overwritten, or if a new cell is being inserted, if the cursor is
-    ** not pointing to an immediately adjacent cell, then move the cursor
-    ** so that it does.
-    */
-    if( loc==0 && (flags & BTREE_SAVEPOSITION)==0 ){
-      if( pX->nMem ){
-        UnpackedRecord r;
-        r.pKeyInfo = pCur->pKeyInfo;
-        r.aMem = pX->aMem;
-        r.nField = pX->nMem;
-        r.default_rc = 0;
-        r.errCode = 0;
-        r.r1 = 0;
-        r.r2 = 0;
-        r.eqSeen = 0;
-        rc = tdsqlite3BtreeMovetoUnpacked(pCur, &r, 0, flags!=0, &loc);
-      }else{
-        rc = btreeMoveto(pCur, pX->pKey, pX->nKey, flags!=0, &loc);
-      }
-      if( rc ) return rc;
-    }
-
-    /* If the cursor is currently pointing to an entry to be overwritten
-    ** and the new content is the same as as the old, then use the
-    ** overwrite optimization.
-    */
-    if( loc==0 ){
-      getCellInfo(pCur);
-      if( pCur->info.nKey==pX->nKey ){
-        BtreePayload x2;
-        x2.pData = pX->pKey;
-        x2.nData = pX->nKey;
-        x2.nZero = 0;
-        return btreeOverwriteCell(pCur, &x2);
-      }
-    }
-
-  }
-  assert( pCur->eState==CURSOR_VALID 
-       || (pCur->eState==CURSOR_INVALID && loc)
-       || CORRUPT_DB );
-
-  pPage = pCur->pPage;
-  assert( pPage->intKey || pX->nKey>=0 );
-  assert( pPage->leaf || !pPage->intKey );
-  if( pPage->nFree<0 ){
-    rc = btreeComputeFreeSpace(pPage);
-    if( rc ) return rc;
-  }
-
-  TRACE(("INSERT: table=%d nkey=%lld ndata=%d page=%d %s\n",
-          pCur->pgnoRoot, pX->nKey, pX->nData, pPage->pgno,
-          loc==0 ? "overwrite" : "new entry"));
-  assert( pPage->isInit );
-  newCell = pBt->pTmpSpace;
-  assert( newCell!=0 );
-  rc = fillInCell(pPage, newCell, pX, &szNew);
-  if( rc ) goto end_insert;
-  assert( szNew==pPage->xCellSize(pPage, newCell) );
-  assert( szNew <= MX_CELL_SIZE(pBt) );
-  idx = pCur->ix;
-  if( loc==0 ){
-    CellInfo info;
-    assert( idx<pPage->nCell );
-    rc = tdsqlite3PagerWrite(pPage->pDbPage);
-    if( rc ){
-      goto end_insert;
-    }
-    oldCell = findCell(pPage, idx);
-    if( !pPage->leaf ){
-      memcpy(newCell, oldCell, 4);
-    }
-    rc = clearCell(pPage, oldCell, &info);
-    testcase( pCur->curFlags & BTCF_ValidOvfl );
-    invalidateOverflowCache(pCur);
-    if( info.nSize==szNew && info.nLocal==info.nPayload 
-     && (!ISAUTOVACUUM || szNew<pPage->minLocal)
-    ){
-      /* Overwrite the old cell with the new if they are the same size.
-      ** We could also try to do this if the old cell is smaller, then add
-      ** the leftover space to the free list.  But experiments show that
-      ** doing that is no faster then skipping this optimization and just
-      ** calling dropCell() and insertCell(). 
-      **
-      ** This optimization cannot be used on an autovacuum database if the
-      ** new entry uses overflow pages, as the insertCell() call below is
-      ** necessary to add the PTRMAP_OVERFLOW1 pointer-map entry.  */
-      assert( rc==SQLITE_OK ); /* clearCell never fails when nLocal==nPayload */
-      if( oldCell < pPage->aData+pPage->hdrOffset+10 ){
-        return SQLITE_CORRUPT_BKPT;
-      }
-      if( oldCell+szNew > pPage->aDataEnd ){
-        return SQLITE_CORRUPT_BKPT;
-      }
-      memcpy(oldCell, newCell, szNew);
-      return SQLITE_OK;
-    }
-    dropCell(pPage, idx, info.nSize, &rc);
-    if( rc ) goto end_insert;
-  }else if( loc<0 && pPage->nCell>0 ){
-    assert( pPage->leaf );
-    idx = ++pCur->ix;
-    pCur->curFlags &= ~BTCF_ValidNKey;
-  }else{
-    assert( pPage->leaf );
-  }
-  insertCell(pPage, idx, newCell, szNew, 0, 0, &rc);
-  assert( pPage->nOverflow==0 || rc==SQLITE_OK );
-  assert( rc!=SQLITE_OK || pPage->nCell>0 || pPage->nOverflow>0 );
-
-  /* If no error has occurred and pPage has an overflow cell, call balance() 
-  ** to redistribute the cells within the tree. Since balance() may move
-  ** the cursor, zero the BtCursor.info.nSize and BTCF_ValidNKey
-  ** variables.
-  **
-  ** Previous versions of SQLite called moveToRoot() to move the cursor
-  ** back to the root page as balance() used to invalidate the contents
-  ** of BtCursor.apPage[] and BtCursor.aiIdx[]. Instead of doing that,
-  ** set the cursor state to "invalid". This makes common insert operations
-  ** slightly faster.
-  **
-  ** There is a subtle but important optimization here too. When inserting
-  ** multiple records into an intkey b-tree using a single cursor (as can
-  ** happen while processing an "INSERT INTO ... SELECT" statement), it
-  ** is advantageous to leave the cursor pointing to the last entry in
-  ** the b-tree if possible. If the cursor is left pointing to the last
-  ** entry in the table, and the next row inserted has an integer key
-  ** larger than the largest existing key, it is possible to insert the
-  ** row without seeking the cursor. This can be a big performance boost.
-  */
-  pCur->info.nSize = 0;
-  if( pPage->nOverflow ){
-    assert( rc==SQLITE_OK );
-    pCur->curFlags &= ~(BTCF_ValidNKey);
-    rc = balance(pCur);
-
-    /* Must make sure nOverflow is reset to zero even if the balance()
-    ** fails. Internal data structure corruption will result otherwise. 
-    ** Also, set the cursor state to invalid. This stops saveCursorPosition()
-    ** from trying to save the current position of the cursor.  */
-    pCur->pPage->nOverflow = 0;
-    pCur->eState = CURSOR_INVALID;
-    if( (flags & BTREE_SAVEPOSITION) && rc==SQLITE_OK ){
-      btreeReleaseAllCursorPages(pCur);
-      if( pCur->pKeyInfo ){
-        assert( pCur->pKey==0 );
-        pCur->pKey = tdsqlite3Malloc( pX->nKey );
-        if( pCur->pKey==0 ){
-          rc = SQLITE_NOMEM;
-        }else{
-          memcpy(pCur->pKey, pX->pKey, pX->nKey);
-        }
-      }
-      pCur->eState = CURSOR_REQUIRESEEK;
-      pCur->nKey = pX->nKey;
-    }
-  }
-  assert( pCur->iPage<0 || pCur->pPage->nOverflow==0 );
-
-end_insert:
-  return rc;
-}
-
-/*
-** Delete the entry that the cursor is pointing to. 
-**
-** If the BTREE_SAVEPOSITION bit of the flags parameter is zero, then
-** the cursor is left pointing at an arbitrary location after the delete.
-** But if that bit is set, then the cursor is left in a state such that
-** the next call to BtreeNext() or BtreePrev() moves it to the same row
-** as it would have been on if the call to BtreeDelete() had been omitted.
-**
-** The BTREE_AUXDELETE bit of flags indicates that is one of several deletes
-** associated with a single table entry and its indexes.  Only one of those
-** deletes is considered the "primary" delete.  The primary delete occurs
-** on a cursor that is not a BTREE_FORDELETE cursor.  All but one delete
-** operation on non-FORDELETE cursors is tagged with the AUXDELETE flag.
-** The BTREE_AUXDELETE bit is a hint that is not used by this implementation,
-** but which might be used by alternative storage engines.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeDelete(BtCursor *pCur, u8 flags){
-  Btree *p = pCur->pBtree;
-  BtShared *pBt = p->pBt;              
-  int rc;                              /* Return code */
-  MemPage *pPage;                      /* Page to delete cell from */
-  unsigned char *pCell;                /* Pointer to cell to delete */
-  int iCellIdx;                        /* Index of cell to delete */
-  int iCellDepth;                      /* Depth of node containing pCell */ 
-  CellInfo info;                       /* Size of the cell being deleted */
-  int bSkipnext = 0;                   /* Leaf cursor in SKIPNEXT state */
-  u8 bPreserve = flags & BTREE_SAVEPOSITION;  /* Keep cursor valid */
-
-  assert( cursorOwnsBtShared(pCur) );
-  assert( pBt->inTransaction==TRANS_WRITE );
-  assert( (pBt->btsFlags & BTS_READ_ONLY)==0 );
-  assert( pCur->curFlags & BTCF_WriteFlag );
-  assert( hasSharedCacheTableLock(p, pCur->pgnoRoot, pCur->pKeyInfo!=0, 2) );
-  assert( !hasReadConflicts(p, pCur->pgnoRoot) );
-  assert( (flags & ~(BTREE_SAVEPOSITION | BTREE_AUXDELETE))==0 );
-  if( pCur->eState==CURSOR_REQUIRESEEK ){
-    rc = btreeRestoreCursorPosition(pCur);
-    if( rc ) return rc;
-  }
-  assert( pCur->eState==CURSOR_VALID );
-
-  iCellDepth = pCur->iPage;
-  iCellIdx = pCur->ix;
-  pPage = pCur->pPage;
-  pCell = findCell(pPage, iCellIdx);
-  if( pPage->nFree<0 && btreeComputeFreeSpace(pPage) ) return SQLITE_CORRUPT;
-
-  /* If the bPreserve flag is set to true, then the cursor position must
-  ** be preserved following this delete operation. If the current delete
-  ** will cause a b-tree rebalance, then this is done by saving the cursor
-  ** key and leaving the cursor in CURSOR_REQUIRESEEK state before 
-  ** returning. 
-  **
-  ** Or, if the current delete will not cause a rebalance, then the cursor
-  ** will be left in CURSOR_SKIPNEXT state pointing to the entry immediately
-  ** before or after the deleted entry. In this case set bSkipnext to true.  */
-  if( bPreserve ){
-    if( !pPage->leaf 
-     || (pPage->nFree+cellSizePtr(pPage,pCell)+2)>(int)(pBt->usableSize*2/3)
-     || pPage->nCell==1  /* See dbfuzz001.test for a test case */
-    ){
-      /* A b-tree rebalance will be required after deleting this entry.
-      ** Save the cursor key.  */
-      rc = saveCursorKey(pCur);
-      if( rc ) return rc;
-    }else{
-      bSkipnext = 1;
-    }
-  }
-
-  /* If the page containing the entry to delete is not a leaf page, move
-  ** the cursor to the largest entry in the tree that is smaller than
-  ** the entry being deleted. This cell will replace the cell being deleted
-  ** from the internal node. The 'previous' entry is used for this instead
-  ** of the 'next' entry, as the previous entry is always a part of the
-  ** sub-tree headed by the child page of the cell being deleted. This makes
-  ** balancing the tree following the delete operation easier.  */
-  if( !pPage->leaf ){
-    rc = tdsqlite3BtreePrevious(pCur, 0);
-    assert( rc!=SQLITE_DONE );
-    if( rc ) return rc;
-  }
-
-  /* Save the positions of any other cursors open on this table before
-  ** making any modifications.  */
-  if( pCur->curFlags & BTCF_Multiple ){
-    rc = saveAllCursors(pBt, pCur->pgnoRoot, pCur);
-    if( rc ) return rc;
-  }
-
-  /* If this is a delete operation to remove a row from a table b-tree,
-  ** invalidate any incrblob cursors open on the row being deleted.  */
-  if( pCur->pKeyInfo==0 ){
-    invalidateIncrblobCursors(p, pCur->pgnoRoot, pCur->info.nKey, 0);
-  }
-
-  /* Make the page containing the entry to be deleted writable. Then free any
-  ** overflow pages associated with the entry and finally remove the cell
-  ** itself from within the page.  */
-  rc = tdsqlite3PagerWrite(pPage->pDbPage);
-  if( rc ) return rc;
-  rc = clearCell(pPage, pCell, &info);
-  dropCell(pPage, iCellIdx, info.nSize, &rc);
-  if( rc ) return rc;
-
-  /* If the cell deleted was not located on a leaf page, then the cursor
-  ** is currently pointing to the largest entry in the sub-tree headed
-  ** by the child-page of the cell that was just deleted from an internal
-  ** node. The cell from the leaf node needs to be moved to the internal
-  ** node to replace the deleted cell.  */
-  if( !pPage->leaf ){
-    MemPage *pLeaf = pCur->pPage;
-    int nCell;
-    Pgno n;
-    unsigned char *pTmp;
-
-    if( pLeaf->nFree<0 ){
-      rc = btreeComputeFreeSpace(pLeaf);
-      if( rc ) return rc;
-    }
-    if( iCellDepth<pCur->iPage-1 ){
-      n = pCur->apPage[iCellDepth+1]->pgno;
-    }else{
-      n = pCur->pPage->pgno;
-    }
-    pCell = findCell(pLeaf, pLeaf->nCell-1);
-    if( pCell<&pLeaf->aData[4] ) return SQLITE_CORRUPT_BKPT;
-    nCell = pLeaf->xCellSize(pLeaf, pCell);
-    assert( MX_CELL_SIZE(pBt) >= nCell );
-    pTmp = pBt->pTmpSpace;
-    assert( pTmp!=0 );
-    rc = tdsqlite3PagerWrite(pLeaf->pDbPage);
-    if( rc==SQLITE_OK ){
-      insertCell(pPage, iCellIdx, pCell-4, nCell+4, pTmp, n, &rc);
-    }
-    dropCell(pLeaf, pLeaf->nCell-1, nCell, &rc);
-    if( rc ) return rc;
-  }
-
-  /* Balance the tree. If the entry deleted was located on a leaf page,
-  ** then the cursor still points to that page. In this case the first
-  ** call to balance() repairs the tree, and the if(...) condition is
-  ** never true.
-  **
-  ** Otherwise, if the entry deleted was on an internal node page, then
-  ** pCur is pointing to the leaf page from which a cell was removed to
-  ** replace the cell deleted from the internal node. This is slightly
-  ** tricky as the leaf node may be underfull, and the internal node may
-  ** be either under or overfull. In this case run the balancing algorithm
-  ** on the leaf node first. If the balance proceeds far enough up the
-  ** tree that we can be sure that any problem in the internal node has
-  ** been corrected, so be it. Otherwise, after balancing the leaf node,
-  ** walk the cursor up the tree to the internal node and balance it as 
-  ** well.  */
-  rc = balance(pCur);
-  if( rc==SQLITE_OK && pCur->iPage>iCellDepth ){
-    releasePageNotNull(pCur->pPage);
-    pCur->iPage--;
-    while( pCur->iPage>iCellDepth ){
-      releasePage(pCur->apPage[pCur->iPage--]);
-    }
-    pCur->pPage = pCur->apPage[pCur->iPage];
-    rc = balance(pCur);
-  }
-
-  if( rc==SQLITE_OK ){
-    if( bSkipnext ){
-      assert( bPreserve && (pCur->iPage==iCellDepth || CORRUPT_DB) );
-      assert( pPage==pCur->pPage || CORRUPT_DB );
-      assert( (pPage->nCell>0 || CORRUPT_DB) && iCellIdx<=pPage->nCell );
-      pCur->eState = CURSOR_SKIPNEXT;
-      if( iCellIdx>=pPage->nCell ){
-        pCur->skipNext = -1;
-        pCur->ix = pPage->nCell-1;
-      }else{
-        pCur->skipNext = 1;
-      }
-    }else{
-      rc = moveToRoot(pCur);
-      if( bPreserve ){
-        btreeReleaseAllCursorPages(pCur);
-        pCur->eState = CURSOR_REQUIRESEEK;
-      }
-      if( rc==SQLITE_EMPTY ) rc = SQLITE_OK;
-    }
-  }
-  return rc;
-}
-
-/*
-** Create a new BTree table.  Write into *piTable the page
-** number for the root page of the new table.
-**
-** The type of type is determined by the flags parameter.  Only the
-** following values of flags are currently in use.  Other values for
-** flags might not work:
-**
-**     BTREE_INTKEY|BTREE_LEAFDATA     Used for SQL tables with rowid keys
-**     BTREE_ZERODATA                  Used for SQL indices
-*/
-static int btreeCreateTable(Btree *p, int *piTable, int createTabFlags){
-  BtShared *pBt = p->pBt;
-  MemPage *pRoot;
-  Pgno pgnoRoot;
-  int rc;
-  int ptfFlags;          /* Page-type flage for the root page of new table */
-
-  assert( tdsqlite3BtreeHoldsMutex(p) );
-  assert( pBt->inTransaction==TRANS_WRITE );
-  assert( (pBt->btsFlags & BTS_READ_ONLY)==0 );
-
-#ifdef SQLITE_OMIT_AUTOVACUUM
-  rc = allocateBtreePage(pBt, &pRoot, &pgnoRoot, 1, 0);
-  if( rc ){
-    return rc;
-  }
-#else
-  if( pBt->autoVacuum ){
-    Pgno pgnoMove;      /* Move a page here to make room for the root-page */
-    MemPage *pPageMove; /* The page to move to. */
-
-    /* Creating a new table may probably require moving an existing database
-    ** to make room for the new tables root page. In case this page turns
-    ** out to be an overflow page, delete all overflow page-map caches
-    ** held by open cursors.
-    */
-    invalidateAllOverflowCache(pBt);
-
-    /* Read the value of meta[3] from the database to determine where the
-    ** root page of the new table should go. meta[3] is the largest root-page
-    ** created so far, so the new root-page is (meta[3]+1).
-    */
-    tdsqlite3BtreeGetMeta(p, BTREE_LARGEST_ROOT_PAGE, &pgnoRoot);
-    pgnoRoot++;
-
-    /* The new root-page may not be allocated on a pointer-map page, or the
-    ** PENDING_BYTE page.
-    */
-    while( pgnoRoot==PTRMAP_PAGENO(pBt, pgnoRoot) ||
-        pgnoRoot==PENDING_BYTE_PAGE(pBt) ){
-      pgnoRoot++;
-    }
-    assert( pgnoRoot>=3 || CORRUPT_DB );
-    testcase( pgnoRoot<3 );
-
-    /* Allocate a page. The page that currently resides at pgnoRoot will
-    ** be moved to the allocated page (unless the allocated page happens
-    ** to reside at pgnoRoot).
-    */
-    rc = allocateBtreePage(pBt, &pPageMove, &pgnoMove, pgnoRoot, BTALLOC_EXACT);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-
-    if( pgnoMove!=pgnoRoot ){
-      /* pgnoRoot is the page that will be used for the root-page of
-      ** the new table (assuming an error did not occur). But we were
-      ** allocated pgnoMove. If required (i.e. if it was not allocated
-      ** by extending the file), the current page at position pgnoMove
-      ** is already journaled.
-      */
-      u8 eType = 0;
-      Pgno iPtrPage = 0;
-
-      /* Save the positions of any open cursors. This is required in
-      ** case they are holding a reference to an xFetch reference
-      ** corresponding to page pgnoRoot.  */
-      rc = saveAllCursors(pBt, 0, 0);
-      releasePage(pPageMove);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-
-      /* Move the page currently at pgnoRoot to pgnoMove. */
-      rc = btreeGetPage(pBt, pgnoRoot, &pRoot, 0);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-      rc = ptrmapGet(pBt, pgnoRoot, &eType, &iPtrPage);
-      if( eType==PTRMAP_ROOTPAGE || eType==PTRMAP_FREEPAGE ){
-        rc = SQLITE_CORRUPT_BKPT;
-      }
-      if( rc!=SQLITE_OK ){
-        releasePage(pRoot);
-        return rc;
-      }
-      assert( eType!=PTRMAP_ROOTPAGE );
-      assert( eType!=PTRMAP_FREEPAGE );
-      rc = relocatePage(pBt, pRoot, eType, iPtrPage, pgnoMove, 0);
-      releasePage(pRoot);
-
-      /* Obtain the page at pgnoRoot */
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-      rc = btreeGetPage(pBt, pgnoRoot, &pRoot, 0);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-      rc = tdsqlite3PagerWrite(pRoot->pDbPage);
-      if( rc!=SQLITE_OK ){
-        releasePage(pRoot);
-        return rc;
-      }
-    }else{
-      pRoot = pPageMove;
-    } 
-
-    /* Update the pointer-map and meta-data with the new root-page number. */
-    ptrmapPut(pBt, pgnoRoot, PTRMAP_ROOTPAGE, 0, &rc);
-    if( rc ){
-      releasePage(pRoot);
-      return rc;
-    }
-
-    /* When the new root page was allocated, page 1 was made writable in
-    ** order either to increase the database filesize, or to decrement the
-    ** freelist count.  Hence, the tdsqlite3BtreeUpdateMeta() call cannot fail.
-    */
-    assert( tdsqlite3PagerIswriteable(pBt->pPage1->pDbPage) );
-    rc = tdsqlite3BtreeUpdateMeta(p, 4, pgnoRoot);
-    if( NEVER(rc) ){
-      releasePage(pRoot);
-      return rc;
-    }
-
-  }else{
-    rc = allocateBtreePage(pBt, &pRoot, &pgnoRoot, 1, 0);
-    if( rc ) return rc;
-  }
-#endif
-  assert( tdsqlite3PagerIswriteable(pRoot->pDbPage) );
-  if( createTabFlags & BTREE_INTKEY ){
-    ptfFlags = PTF_INTKEY | PTF_LEAFDATA | PTF_LEAF;
-  }else{
-    ptfFlags = PTF_ZERODATA | PTF_LEAF;
-  }
-  zeroPage(pRoot, ptfFlags);
-  tdsqlite3PagerUnref(pRoot->pDbPage);
-  assert( (pBt->openFlags & BTREE_SINGLE)==0 || pgnoRoot==2 );
-  *piTable = (int)pgnoRoot;
-  return SQLITE_OK;
-}
-SQLITE_PRIVATE int tdsqlite3BtreeCreateTable(Btree *p, int *piTable, int flags){
-  int rc;
-  tdsqlite3BtreeEnter(p);
-  rc = btreeCreateTable(p, piTable, flags);
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-/*
-** Erase the given database page and all its children.  Return
-** the page to the freelist.
-*/
-static int clearDatabasePage(
-  BtShared *pBt,           /* The BTree that contains the table */
-  Pgno pgno,               /* Page number to clear */
-  int freePageFlag,        /* Deallocate page if true */
-  int *pnChange            /* Add number of Cells freed to this counter */
-){
-  MemPage *pPage;
-  int rc;
-  unsigned char *pCell;
-  int i;
-  int hdr;
-  CellInfo info;
-
-  assert( tdsqlite3_mutex_held(pBt->mutex) );
-  if( pgno>btreePagecount(pBt) ){
-    return SQLITE_CORRUPT_BKPT;
-  }
-  rc = getAndInitPage(pBt, pgno, &pPage, 0, 0);
-  if( rc ) return rc;
-  if( pPage->bBusy ){
-    rc = SQLITE_CORRUPT_BKPT;
-    goto cleardatabasepage_out;
-  }
-  pPage->bBusy = 1;
-  hdr = pPage->hdrOffset;
-  for(i=0; i<pPage->nCell; i++){
-    pCell = findCell(pPage, i);
-    if( !pPage->leaf ){
-      rc = clearDatabasePage(pBt, get4byte(pCell), 1, pnChange);
-      if( rc ) goto cleardatabasepage_out;
-    }
-    rc = clearCell(pPage, pCell, &info);
-    if( rc ) goto cleardatabasepage_out;
-  }
-  if( !pPage->leaf ){
-    rc = clearDatabasePage(pBt, get4byte(&pPage->aData[hdr+8]), 1, pnChange);
-    if( rc ) goto cleardatabasepage_out;
-  }else if( pnChange ){
-    assert( pPage->intKey || CORRUPT_DB );
-    testcase( !pPage->intKey );
-    *pnChange += pPage->nCell;
-  }
-  if( freePageFlag ){
-    freePage(pPage, &rc);
-  }else if( (rc = tdsqlite3PagerWrite(pPage->pDbPage))==0 ){
-    zeroPage(pPage, pPage->aData[hdr] | PTF_LEAF);
-  }
-
-cleardatabasepage_out:
-  pPage->bBusy = 0;
-  releasePage(pPage);
-  return rc;
-}
-
-/*
-** Delete all information from a single table in the database.  iTable is
-** the page number of the root of the table.  After this routine returns,
-** the root page is empty, but still exists.
-**
-** This routine will fail with SQLITE_LOCKED if there are any open
-** read cursors on the table.  Open write cursors are moved to the
-** root of the table.
-**
-** If pnChange is not NULL, then table iTable must be an intkey table. The
-** integer value pointed to by pnChange is incremented by the number of
-** entries in the table.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeClearTable(Btree *p, int iTable, int *pnChange){
-  int rc;
-  BtShared *pBt = p->pBt;
-  tdsqlite3BtreeEnter(p);
-  assert( p->inTrans==TRANS_WRITE );
-
-  rc = saveAllCursors(pBt, (Pgno)iTable, 0);
-
-  if( SQLITE_OK==rc ){
-    /* Invalidate all incrblob cursors open on table iTable (assuming iTable
-    ** is the root of a table b-tree - if it is not, the following call is
-    ** a no-op).  */
-    invalidateIncrblobCursors(p, (Pgno)iTable, 0, 1);
-    rc = clearDatabasePage(pBt, (Pgno)iTable, 0, pnChange);
-  }
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-/*
-** Delete all information from the single table that pCur is open on.
-**
-** This routine only work for pCur on an ephemeral table.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeClearTableOfCursor(BtCursor *pCur){
-  return tdsqlite3BtreeClearTable(pCur->pBtree, pCur->pgnoRoot, 0);
-}
-
-/*
-** Erase all information in a table and add the root of the table to
-** the freelist.  Except, the root of the principle table (the one on
-** page 1) is never added to the freelist.
-**
-** This routine will fail with SQLITE_LOCKED if there are any open
-** cursors on the table.
-**
-** If AUTOVACUUM is enabled and the page at iTable is not the last
-** root page in the database file, then the last root page 
-** in the database file is moved into the slot formerly occupied by
-** iTable and that last slot formerly occupied by the last root page
-** is added to the freelist instead of iTable.  In this say, all
-** root pages are kept at the beginning of the database file, which
-** is necessary for AUTOVACUUM to work right.  *piMoved is set to the 
-** page number that used to be the last root page in the file before
-** the move.  If no page gets moved, *piMoved is set to 0.
-** The last root page is recorded in meta[3] and the value of
-** meta[3] is updated by this procedure.
-*/
-static int btreeDropTable(Btree *p, Pgno iTable, int *piMoved){
-  int rc;
-  MemPage *pPage = 0;
-  BtShared *pBt = p->pBt;
-
-  assert( tdsqlite3BtreeHoldsMutex(p) );
-  assert( p->inTrans==TRANS_WRITE );
-  assert( iTable>=2 );
-  if( iTable>btreePagecount(pBt) ){
-    return SQLITE_CORRUPT_BKPT;
-  }
-
-  rc = btreeGetPage(pBt, (Pgno)iTable, &pPage, 0);
-  if( rc ) return rc;
-  rc = tdsqlite3BtreeClearTable(p, iTable, 0);
-  if( rc ){
-    releasePage(pPage);
-    return rc;
-  }
-
-  *piMoved = 0;
-
-#ifdef SQLITE_OMIT_AUTOVACUUM
-  freePage(pPage, &rc);
-  releasePage(pPage);
-#else
-  if( pBt->autoVacuum ){
-    Pgno maxRootPgno;
-    tdsqlite3BtreeGetMeta(p, BTREE_LARGEST_ROOT_PAGE, &maxRootPgno);
-
-    if( iTable==maxRootPgno ){
-      /* If the table being dropped is the table with the largest root-page
-      ** number in the database, put the root page on the free list. 
-      */
-      freePage(pPage, &rc);
-      releasePage(pPage);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-    }else{
-      /* The table being dropped does not have the largest root-page
-      ** number in the database. So move the page that does into the 
-      ** gap left by the deleted root-page.
-      */
-      MemPage *pMove;
-      releasePage(pPage);
-      rc = btreeGetPage(pBt, maxRootPgno, &pMove, 0);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-      rc = relocatePage(pBt, pMove, PTRMAP_ROOTPAGE, 0, iTable, 0);
-      releasePage(pMove);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-      pMove = 0;
-      rc = btreeGetPage(pBt, maxRootPgno, &pMove, 0);
-      freePage(pMove, &rc);
-      releasePage(pMove);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-      *piMoved = maxRootPgno;
-    }
-
-    /* Set the new 'max-root-page' value in the database header. This
-    ** is the old value less one, less one more if that happens to
-    ** be a root-page number, less one again if that is the
-    ** PENDING_BYTE_PAGE.
-    */
-    maxRootPgno--;
-    while( maxRootPgno==PENDING_BYTE_PAGE(pBt)
-           || PTRMAP_ISPAGE(pBt, maxRootPgno) ){
-      maxRootPgno--;
-    }
-    assert( maxRootPgno!=PENDING_BYTE_PAGE(pBt) );
-
-    rc = tdsqlite3BtreeUpdateMeta(p, 4, maxRootPgno);
-  }else{
-    freePage(pPage, &rc);
-    releasePage(pPage);
-  }
-#endif
-  return rc;  
-}
-SQLITE_PRIVATE int tdsqlite3BtreeDropTable(Btree *p, int iTable, int *piMoved){
-  int rc;
-  tdsqlite3BtreeEnter(p);
-  rc = btreeDropTable(p, iTable, piMoved);
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-
-/*
-** This function may only be called if the b-tree connection already
-** has a read or write transaction open on the database.
-**
-** Read the meta-information out of a database file.  Meta[0]
-** is the number of free pages currently in the database.  Meta[1]
-** through meta[15] are available for use by higher layers.  Meta[0]
-** is read-only, the others are read/write.
-** 
-** The schema layer numbers meta values differently.  At the schema
-** layer (and the SetCookie and ReadCookie opcodes) the number of
-** free pages is not visible.  So Cookie[0] is the same as Meta[1].
-**
-** This routine treats Meta[BTREE_DATA_VERSION] as a special case.  Instead
-** of reading the value out of the header, it instead loads the "DataVersion"
-** from the pager.  The BTREE_DATA_VERSION value is not actually stored in the
-** database file.  It is a number computed by the pager.  But its access
-** pattern is the same as header meta values, and so it is convenient to
-** read it from this routine.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeGetMeta(Btree *p, int idx, u32 *pMeta){
-  BtShared *pBt = p->pBt;
-
-  tdsqlite3BtreeEnter(p);
-  assert( p->inTrans>TRANS_NONE );
-  assert( SQLITE_OK==querySharedCacheTableLock(p, MASTER_ROOT, READ_LOCK) );
-  assert( pBt->pPage1 );
-  assert( idx>=0 && idx<=15 );
-
-  if( idx==BTREE_DATA_VERSION ){
-    *pMeta = tdsqlite3PagerDataVersion(pBt->pPager) + p->iDataVersion;
-  }else{
-    *pMeta = get4byte(&pBt->pPage1->aData[36 + idx*4]);
-  }
-
-  /* If auto-vacuum is disabled in this build and this is an auto-vacuum
-  ** database, mark the database as read-only.  */
-#ifdef SQLITE_OMIT_AUTOVACUUM
-  if( idx==BTREE_LARGEST_ROOT_PAGE && *pMeta>0 ){
-    pBt->btsFlags |= BTS_READ_ONLY;
-  }
-#endif
-
-  tdsqlite3BtreeLeave(p);
-}
-
-/*
-** Write meta-information back into the database.  Meta[0] is
-** read-only and may not be written.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeUpdateMeta(Btree *p, int idx, u32 iMeta){
-  BtShared *pBt = p->pBt;
-  unsigned char *pP1;
-  int rc;
-  assert( idx>=1 && idx<=15 );
-  tdsqlite3BtreeEnter(p);
-  assert( p->inTrans==TRANS_WRITE );
-  assert( pBt->pPage1!=0 );
-  pP1 = pBt->pPage1->aData;
-  rc = tdsqlite3PagerWrite(pBt->pPage1->pDbPage);
-  if( rc==SQLITE_OK ){
-    put4byte(&pP1[36 + idx*4], iMeta);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( idx==BTREE_INCR_VACUUM ){
-      assert( pBt->autoVacuum || iMeta==0 );
-      assert( iMeta==0 || iMeta==1 );
-      pBt->incrVacuum = (u8)iMeta;
-    }
-#endif
-  }
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-#ifndef SQLITE_OMIT_BTREECOUNT
-/*
-** The first argument, pCur, is a cursor opened on some b-tree. Count the
-** number of entries in the b-tree and write the result to *pnEntry.
-**
-** SQLITE_OK is returned if the operation is successfully executed. 
-** Otherwise, if an error is encountered (i.e. an IO error or database
-** corruption) an SQLite error code is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCount(tdsqlite3 *db, BtCursor *pCur, i64 *pnEntry){
-  i64 nEntry = 0;                      /* Value to return in *pnEntry */
-  int rc;                              /* Return code */
-
-  rc = moveToRoot(pCur);
-  if( rc==SQLITE_EMPTY ){
-    *pnEntry = 0;
-    return SQLITE_OK;
-  }
-
-  /* Unless an error occurs, the following loop runs one iteration for each
-  ** page in the B-Tree structure (not including overflow pages). 
-  */
-  while( rc==SQLITE_OK && !db->u1.isInterrupted ){
-    int iIdx;                          /* Index of child node in parent */
-    MemPage *pPage;                    /* Current page of the b-tree */
-
-    /* If this is a leaf page or the tree is not an int-key tree, then 
-    ** this page contains countable entries. Increment the entry counter
-    ** accordingly.
-    */
-    pPage = pCur->pPage;
-    if( pPage->leaf || !pPage->intKey ){
-      nEntry += pPage->nCell;
-    }
-
-    /* pPage is a leaf node. This loop navigates the cursor so that it 
-    ** points to the first interior cell that it points to the parent of
-    ** the next page in the tree that has not yet been visited. The
-    ** pCur->aiIdx[pCur->iPage] value is set to the index of the parent cell
-    ** of the page, or to the number of cells in the page if the next page
-    ** to visit is the right-child of its parent.
-    **
-    ** If all pages in the tree have been visited, return SQLITE_OK to the
-    ** caller.
-    */
-    if( pPage->leaf ){
-      do {
-        if( pCur->iPage==0 ){
-          /* All pages of the b-tree have been visited. Return successfully. */
-          *pnEntry = nEntry;
-          return moveToRoot(pCur);
-        }
-        moveToParent(pCur);
-      }while ( pCur->ix>=pCur->pPage->nCell );
-
-      pCur->ix++;
-      pPage = pCur->pPage;
-    }
-
-    /* Descend to the child node of the cell that the cursor currently 
-    ** points at. This is the right-child if (iIdx==pPage->nCell).
-    */
-    iIdx = pCur->ix;
-    if( iIdx==pPage->nCell ){
-      rc = moveToChild(pCur, get4byte(&pPage->aData[pPage->hdrOffset+8]));
-    }else{
-      rc = moveToChild(pCur, get4byte(findCell(pPage, iIdx)));
-    }
-  }
-
-  /* An error has occurred. Return an error code. */
-  return rc;
-}
-#endif
-
-/*
-** Return the pager associated with a BTree.  This routine is used for
-** testing and debugging only.
-*/
-SQLITE_PRIVATE Pager *tdsqlite3BtreePager(Btree *p){
-  return p->pBt->pPager;
-}
-
-#ifndef SQLITE_OMIT_INTEGRITY_CHECK
-/*
-** Append a message to the error message string.
-*/
-static void checkAppendMsg(
-  IntegrityCk *pCheck,
-  const char *zFormat,
-  ...
-){
-  va_list ap;
-  if( !pCheck->mxErr ) return;
-  pCheck->mxErr--;
-  pCheck->nErr++;
-  va_start(ap, zFormat);
-  if( pCheck->errMsg.nChar ){
-    tdsqlite3_str_append(&pCheck->errMsg, "\n", 1);
-  }
-  if( pCheck->zPfx ){
-    tdsqlite3_str_appendf(&pCheck->errMsg, pCheck->zPfx, pCheck->v1, pCheck->v2);
-  }
-  tdsqlite3_str_vappendf(&pCheck->errMsg, zFormat, ap);
-  va_end(ap);
-  if( pCheck->errMsg.accError==SQLITE_NOMEM ){
-    pCheck->mallocFailed = 1;
-  }
-}
-#endif /* SQLITE_OMIT_INTEGRITY_CHECK */
-
-#ifndef SQLITE_OMIT_INTEGRITY_CHECK
-
-/*
-** Return non-zero if the bit in the IntegrityCk.aPgRef[] array that
-** corresponds to page iPg is already set.
-*/
-static int getPageReferenced(IntegrityCk *pCheck, Pgno iPg){
-  assert( iPg<=pCheck->nPage && sizeof(pCheck->aPgRef[0])==1 );
-  return (pCheck->aPgRef[iPg/8] & (1 << (iPg & 0x07)));
-}
-
-/*
-** Set the bit in the IntegrityCk.aPgRef[] array that corresponds to page iPg.
-*/
-static void setPageReferenced(IntegrityCk *pCheck, Pgno iPg){
-  assert( iPg<=pCheck->nPage && sizeof(pCheck->aPgRef[0])==1 );
-  pCheck->aPgRef[iPg/8] |= (1 << (iPg & 0x07));
-}
-
-
-/*
-** Add 1 to the reference count for page iPage.  If this is the second
-** reference to the page, add an error message to pCheck->zErrMsg.
-** Return 1 if there are 2 or more references to the page and 0 if
-** if this is the first reference to the page.
-**
-** Also check that the page number is in bounds.
-*/
-static int checkRef(IntegrityCk *pCheck, Pgno iPage){
-  if( iPage>pCheck->nPage || iPage==0 ){
-    checkAppendMsg(pCheck, "invalid page number %d", iPage);
-    return 1;
-  }
-  if( getPageReferenced(pCheck, iPage) ){
-    checkAppendMsg(pCheck, "2nd reference to page %d", iPage);
-    return 1;
-  }
-  if( pCheck->db->u1.isInterrupted ) return 1;
-  setPageReferenced(pCheck, iPage);
-  return 0;
-}
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-/*
-** Check that the entry in the pointer-map for page iChild maps to 
-** page iParent, pointer type ptrType. If not, append an error message
-** to pCheck.
-*/
-static void checkPtrmap(
-  IntegrityCk *pCheck,   /* Integrity check context */
-  Pgno iChild,           /* Child page number */
-  u8 eType,              /* Expected pointer map type */
-  Pgno iParent           /* Expected pointer map parent page number */
-){
-  int rc;
-  u8 ePtrmapType;
-  Pgno iPtrmapParent;
-
-  rc = ptrmapGet(pCheck->pBt, iChild, &ePtrmapType, &iPtrmapParent);
-  if( rc!=SQLITE_OK ){
-    if( rc==SQLITE_NOMEM || rc==SQLITE_IOERR_NOMEM ) pCheck->mallocFailed = 1;
-    checkAppendMsg(pCheck, "Failed to read ptrmap key=%d", iChild);
-    return;
-  }
-
-  if( ePtrmapType!=eType || iPtrmapParent!=iParent ){
-    checkAppendMsg(pCheck,
-      "Bad ptr map entry key=%d expected=(%d,%d) got=(%d,%d)", 
-      iChild, eType, iParent, ePtrmapType, iPtrmapParent);
-  }
-}
-#endif
-
-/*
-** Check the integrity of the freelist or of an overflow page list.
-** Verify that the number of pages on the list is N.
-*/
-static void checkList(
-  IntegrityCk *pCheck,  /* Integrity checking context */
-  int isFreeList,       /* True for a freelist.  False for overflow page list */
-  int iPage,            /* Page number for first page in the list */
-  u32 N                 /* Expected number of pages in the list */
-){
-  int i;
-  u32 expected = N;
-  int nErrAtStart = pCheck->nErr;
-  while( iPage!=0 && pCheck->mxErr ){
-    DbPage *pOvflPage;
-    unsigned char *pOvflData;
-    if( checkRef(pCheck, iPage) ) break;
-    N--;
-    if( tdsqlite3PagerGet(pCheck->pPager, (Pgno)iPage, &pOvflPage, 0) ){
-      checkAppendMsg(pCheck, "failed to get page %d", iPage);
-      break;
-    }
-    pOvflData = (unsigned char *)tdsqlite3PagerGetData(pOvflPage);
-    if( isFreeList ){
-      u32 n = (u32)get4byte(&pOvflData[4]);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-      if( pCheck->pBt->autoVacuum ){
-        checkPtrmap(pCheck, iPage, PTRMAP_FREEPAGE, 0);
-      }
-#endif
-      if( n>pCheck->pBt->usableSize/4-2 ){
-        checkAppendMsg(pCheck,
-           "freelist leaf count too big on page %d", iPage);
-        N--;
-      }else{
-        for(i=0; i<(int)n; i++){
-          Pgno iFreePage = get4byte(&pOvflData[8+i*4]);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-          if( pCheck->pBt->autoVacuum ){
-            checkPtrmap(pCheck, iFreePage, PTRMAP_FREEPAGE, 0);
-          }
-#endif
-          checkRef(pCheck, iFreePage);
-        }
-        N -= n;
-      }
-    }
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    else{
-      /* If this database supports auto-vacuum and iPage is not the last
-      ** page in this overflow list, check that the pointer-map entry for
-      ** the following page matches iPage.
-      */
-      if( pCheck->pBt->autoVacuum && N>0 ){
-        i = get4byte(pOvflData);
-        checkPtrmap(pCheck, i, PTRMAP_OVERFLOW2, iPage);
-      }
-    }
-#endif
-    iPage = get4byte(pOvflData);
-    tdsqlite3PagerUnref(pOvflPage);
-  }
-  if( N && nErrAtStart==pCheck->nErr ){
-    checkAppendMsg(pCheck,
-      "%s is %d but should be %d",
-      isFreeList ? "size" : "overflow list length",
-      expected-N, expected);
-  }
-}
-#endif /* SQLITE_OMIT_INTEGRITY_CHECK */
-
-/*
-** An implementation of a min-heap.
-**
-** aHeap[0] is the number of elements on the heap.  aHeap[1] is the
-** root element.  The daughter nodes of aHeap[N] are aHeap[N*2]
-** and aHeap[N*2+1].
-**
-** The heap property is this:  Every node is less than or equal to both
-** of its daughter nodes.  A consequence of the heap property is that the
-** root node aHeap[1] is always the minimum value currently in the heap.
-**
-** The btreeHeapInsert() routine inserts an unsigned 32-bit number onto
-** the heap, preserving the heap property.  The btreeHeapPull() routine
-** removes the root element from the heap (the minimum value in the heap)
-** and then moves other nodes around as necessary to preserve the heap
-** property.
-**
-** This heap is used for cell overlap and coverage testing.  Each u32
-** entry represents the span of a cell or freeblock on a btree page.  
-** The upper 16 bits are the index of the first byte of a range and the
-** lower 16 bits are the index of the last byte of that range.
-*/
-static void btreeHeapInsert(u32 *aHeap, u32 x){
-  u32 j, i = ++aHeap[0];
-  aHeap[i] = x;
-  while( (j = i/2)>0 && aHeap[j]>aHeap[i] ){
-    x = aHeap[j];
-    aHeap[j] = aHeap[i];
-    aHeap[i] = x;
-    i = j;
-  }
-}
-static int btreeHeapPull(u32 *aHeap, u32 *pOut){
-  u32 j, i, x;
-  if( (x = aHeap[0])==0 ) return 0;
-  *pOut = aHeap[1];
-  aHeap[1] = aHeap[x];
-  aHeap[x] = 0xffffffff;
-  aHeap[0]--;
-  i = 1;
-  while( (j = i*2)<=aHeap[0] ){
-    if( aHeap[j]>aHeap[j+1] ) j++;
-    if( aHeap[i]<aHeap[j] ) break;
-    x = aHeap[i];
-    aHeap[i] = aHeap[j];
-    aHeap[j] = x;
-    i = j;
-  }
-  return 1;  
-}
-
-#ifndef SQLITE_OMIT_INTEGRITY_CHECK
-/*
-** Do various sanity checks on a single page of a tree.  Return
-** the tree depth.  Root pages return 0.  Parents of root pages
-** return 1, and so forth.
-** 
-** These checks are done:
-**
-**      1.  Make sure that cells and freeblocks do not overlap
-**          but combine to completely cover the page.
-**      2.  Make sure integer cell keys are in order.
-**      3.  Check the integrity of overflow pages.
-**      4.  Recursively call checkTreePage on all children.
-**      5.  Verify that the depth of all children is the same.
-*/
-static int checkTreePage(
-  IntegrityCk *pCheck,  /* Context for the sanity check */
-  int iPage,            /* Page number of the page to check */
-  i64 *piMinKey,        /* Write minimum integer primary key here */
-  i64 maxKey            /* Error if integer primary key greater than this */
-){
-  MemPage *pPage = 0;      /* The page being analyzed */
-  int i;                   /* Loop counter */
-  int rc;                  /* Result code from subroutine call */
-  int depth = -1, d2;      /* Depth of a subtree */
-  int pgno;                /* Page number */
-  int nFrag;               /* Number of fragmented bytes on the page */
-  int hdr;                 /* Offset to the page header */
-  int cellStart;           /* Offset to the start of the cell pointer array */
-  int nCell;               /* Number of cells */
-  int doCoverageCheck = 1; /* True if cell coverage checking should be done */
-  int keyCanBeEqual = 1;   /* True if IPK can be equal to maxKey
-                           ** False if IPK must be strictly less than maxKey */
-  u8 *data;                /* Page content */
-  u8 *pCell;               /* Cell content */
-  u8 *pCellIdx;            /* Next element of the cell pointer array */
-  BtShared *pBt;           /* The BtShared object that owns pPage */
-  u32 pc;                  /* Address of a cell */
-  u32 usableSize;          /* Usable size of the page */
-  u32 contentOffset;       /* Offset to the start of the cell content area */
-  u32 *heap = 0;           /* Min-heap used for checking cell coverage */
-  u32 x, prev = 0;         /* Next and previous entry on the min-heap */
-  const char *saved_zPfx = pCheck->zPfx;
-  int saved_v1 = pCheck->v1;
-  int saved_v2 = pCheck->v2;
-  u8 savedIsInit = 0;
-
-  /* Check that the page exists
-  */
-  pBt = pCheck->pBt;
-  usableSize = pBt->usableSize;
-  if( iPage==0 ) return 0;
-  if( checkRef(pCheck, iPage) ) return 0;
-  pCheck->zPfx = "Page %d: ";
-  pCheck->v1 = iPage;
-  if( (rc = btreeGetPage(pBt, (Pgno)iPage, &pPage, 0))!=0 ){
-    checkAppendMsg(pCheck,
-       "unable to get the page. error code=%d", rc);
-    goto end_of_check;
-  }
-
-  /* Clear MemPage.isInit to make sure the corruption detection code in
-  ** btreeInitPage() is executed.  */
-  savedIsInit = pPage->isInit;
-  pPage->isInit = 0;
-  if( (rc = btreeInitPage(pPage))!=0 ){
-    assert( rc==SQLITE_CORRUPT );  /* The only possible error from InitPage */
-    checkAppendMsg(pCheck,
-                   "btreeInitPage() returns error code %d", rc);
-    goto end_of_check;
-  }
-  if( (rc = btreeComputeFreeSpace(pPage))!=0 ){
-    assert( rc==SQLITE_CORRUPT );
-    checkAppendMsg(pCheck, "free space corruption", rc);
-    goto end_of_check;
-  }
-  data = pPage->aData;
-  hdr = pPage->hdrOffset;
-
-  /* Set up for cell analysis */
-  pCheck->zPfx = "On tree page %d cell %d: ";
-  contentOffset = get2byteNotZero(&data[hdr+5]);
-  assert( contentOffset<=usableSize );  /* Enforced by btreeInitPage() */
-
-  /* EVIDENCE-OF: R-37002-32774 The two-byte integer at offset 3 gives the
-  ** number of cells on the page. */
-  nCell = get2byte(&data[hdr+3]);
-  assert( pPage->nCell==nCell );
-
-  /* EVIDENCE-OF: R-23882-45353 The cell pointer array of a b-tree page
-  ** immediately follows the b-tree page header. */
-  cellStart = hdr + 12 - 4*pPage->leaf;
-  assert( pPage->aCellIdx==&data[cellStart] );
-  pCellIdx = &data[cellStart + 2*(nCell-1)];
-
-  if( !pPage->leaf ){
-    /* Analyze the right-child page of internal pages */
-    pgno = get4byte(&data[hdr+8]);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( pBt->autoVacuum ){
-      pCheck->zPfx = "On page %d at right child: ";
-      checkPtrmap(pCheck, pgno, PTRMAP_BTREE, iPage);
-    }
-#endif
-    depth = checkTreePage(pCheck, pgno, &maxKey, maxKey);
-    keyCanBeEqual = 0;
-  }else{
-    /* For leaf pages, the coverage check will occur in the same loop
-    ** as the other cell checks, so initialize the heap.  */
-    heap = pCheck->heap;
-    heap[0] = 0;
-  }
-
-  /* EVIDENCE-OF: R-02776-14802 The cell pointer array consists of K 2-byte
-  ** integer offsets to the cell contents. */
-  for(i=nCell-1; i>=0 && pCheck->mxErr; i--){
-    CellInfo info;
-
-    /* Check cell size */
-    pCheck->v2 = i;
-    assert( pCellIdx==&data[cellStart + i*2] );
-    pc = get2byteAligned(pCellIdx);
-    pCellIdx -= 2;
-    if( pc<contentOffset || pc>usableSize-4 ){
-      checkAppendMsg(pCheck, "Offset %d out of range %d..%d",
-                             pc, contentOffset, usableSize-4);
-      doCoverageCheck = 0;
-      continue;
-    }
-    pCell = &data[pc];
-    pPage->xParseCell(pPage, pCell, &info);
-    if( pc+info.nSize>usableSize ){
-      checkAppendMsg(pCheck, "Extends off end of page");
-      doCoverageCheck = 0;
-      continue;
-    }
-
-    /* Check for integer primary key out of range */
-    if( pPage->intKey ){
-      if( keyCanBeEqual ? (info.nKey > maxKey) : (info.nKey >= maxKey) ){
-        checkAppendMsg(pCheck, "Rowid %lld out of order", info.nKey);
-      }
-      maxKey = info.nKey;
-      keyCanBeEqual = 0;     /* Only the first key on the page may ==maxKey */
-    }
-
-    /* Check the content overflow list */
-    if( info.nPayload>info.nLocal ){
-      u32 nPage;       /* Number of pages on the overflow chain */
-      Pgno pgnoOvfl;   /* First page of the overflow chain */
-      assert( pc + info.nSize - 4 <= usableSize );
-      nPage = (info.nPayload - info.nLocal + usableSize - 5)/(usableSize - 4);
-      pgnoOvfl = get4byte(&pCell[info.nSize - 4]);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-      if( pBt->autoVacuum ){
-        checkPtrmap(pCheck, pgnoOvfl, PTRMAP_OVERFLOW1, iPage);
-      }
-#endif
-      checkList(pCheck, 0, pgnoOvfl, nPage);
-    }
-
-    if( !pPage->leaf ){
-      /* Check sanity of left child page for internal pages */
-      pgno = get4byte(pCell);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-      if( pBt->autoVacuum ){
-        checkPtrmap(pCheck, pgno, PTRMAP_BTREE, iPage);
-      }
-#endif
-      d2 = checkTreePage(pCheck, pgno, &maxKey, maxKey);
-      keyCanBeEqual = 0;
-      if( d2!=depth ){
-        checkAppendMsg(pCheck, "Child page depth differs");
-        depth = d2;
-      }
-    }else{
-      /* Populate the coverage-checking heap for leaf pages */
-      btreeHeapInsert(heap, (pc<<16)|(pc+info.nSize-1));
-    }
-  }
-  *piMinKey = maxKey;
-
-  /* Check for complete coverage of the page
-  */
-  pCheck->zPfx = 0;
-  if( doCoverageCheck && pCheck->mxErr>0 ){
-    /* For leaf pages, the min-heap has already been initialized and the
-    ** cells have already been inserted.  But for internal pages, that has
-    ** not yet been done, so do it now */
-    if( !pPage->leaf ){
-      heap = pCheck->heap;
-      heap[0] = 0;
-      for(i=nCell-1; i>=0; i--){
-        u32 size;
-        pc = get2byteAligned(&data[cellStart+i*2]);
-        size = pPage->xCellSize(pPage, &data[pc]);
-        btreeHeapInsert(heap, (pc<<16)|(pc+size-1));
-      }
-    }
-    /* Add the freeblocks to the min-heap
-    **
-    ** EVIDENCE-OF: R-20690-50594 The second field of the b-tree page header
-    ** is the offset of the first freeblock, or zero if there are no
-    ** freeblocks on the page. 
-    */
-    i = get2byte(&data[hdr+1]);
-    while( i>0 ){
-      int size, j;
-      assert( (u32)i<=usableSize-4 ); /* Enforced by btreeComputeFreeSpace() */
-      size = get2byte(&data[i+2]);
-      assert( (u32)(i+size)<=usableSize ); /* due to btreeComputeFreeSpace() */
-      btreeHeapInsert(heap, (((u32)i)<<16)|(i+size-1));
-      /* EVIDENCE-OF: R-58208-19414 The first 2 bytes of a freeblock are a
-      ** big-endian integer which is the offset in the b-tree page of the next
-      ** freeblock in the chain, or zero if the freeblock is the last on the
-      ** chain. */
-      j = get2byte(&data[i]);
-      /* EVIDENCE-OF: R-06866-39125 Freeblocks are always connected in order of
-      ** increasing offset. */
-      assert( j==0 || j>i+size );     /* Enforced by btreeComputeFreeSpace() */
-      assert( (u32)j<=usableSize-4 ); /* Enforced by btreeComputeFreeSpace() */
-      i = j;
-    }
-    /* Analyze the min-heap looking for overlap between cells and/or 
-    ** freeblocks, and counting the number of untracked bytes in nFrag.
-    ** 
-    ** Each min-heap entry is of the form:    (start_address<<16)|end_address.
-    ** There is an implied first entry the covers the page header, the cell
-    ** pointer index, and the gap between the cell pointer index and the start
-    ** of cell content.  
-    **
-    ** The loop below pulls entries from the min-heap in order and compares
-    ** the start_address against the previous end_address.  If there is an
-    ** overlap, that means bytes are used multiple times.  If there is a gap,
-    ** that gap is added to the fragmentation count.
-    */
-    nFrag = 0;
-    prev = contentOffset - 1;   /* Implied first min-heap entry */
-    while( btreeHeapPull(heap,&x) ){
-      if( (prev&0xffff)>=(x>>16) ){
-        checkAppendMsg(pCheck,
-          "Multiple uses for byte %u of page %d", x>>16, iPage);
-        break;
-      }else{
-        nFrag += (x>>16) - (prev&0xffff) - 1;
-        prev = x;
-      }
-    }
-    nFrag += usableSize - (prev&0xffff) - 1;
-    /* EVIDENCE-OF: R-43263-13491 The total number of bytes in all fragments
-    ** is stored in the fifth field of the b-tree page header.
-    ** EVIDENCE-OF: R-07161-27322 The one-byte integer at offset 7 gives the
-    ** number of fragmented free bytes within the cell content area.
-    */
-    if( heap[0]==0 && nFrag!=data[hdr+7] ){
-      checkAppendMsg(pCheck,
-          "Fragmentation of %d bytes reported as %d on page %d",
-          nFrag, data[hdr+7], iPage);
-    }
-  }
-
-end_of_check:
-  if( !doCoverageCheck ) pPage->isInit = savedIsInit;
-  releasePage(pPage);
-  pCheck->zPfx = saved_zPfx;
-  pCheck->v1 = saved_v1;
-  pCheck->v2 = saved_v2;
-  return depth+1;
-}
-#endif /* SQLITE_OMIT_INTEGRITY_CHECK */
-
-#ifndef SQLITE_OMIT_INTEGRITY_CHECK
-/*
-** This routine does a complete check of the given BTree file.  aRoot[] is
-** an array of pages numbers were each page number is the root page of
-** a table.  nRoot is the number of entries in aRoot.
-**
-** A read-only or read-write transaction must be opened before calling
-** this function.
-**
-** Write the number of error seen in *pnErr.  Except for some memory
-** allocation errors,  an error message held in memory obtained from
-** malloc is returned if *pnErr is non-zero.  If *pnErr==0 then NULL is
-** returned.  If a memory allocation error occurs, NULL is returned.
-*/
-SQLITE_PRIVATE char *tdsqlite3BtreeIntegrityCheck(
-  tdsqlite3 *db,  /* Database connection that is running the check */
-  Btree *p,     /* The btree to be checked */
-  int *aRoot,   /* An array of root pages numbers for individual trees */
-  int nRoot,    /* Number of entries in aRoot[] */
-  int mxErr,    /* Stop reporting errors after this many */
-  int *pnErr    /* Write number of errors seen to this variable */
-){
-  Pgno i;
-  IntegrityCk sCheck;
-  BtShared *pBt = p->pBt;
-  u64 savedDbFlags = pBt->db->flags;
-  char zErr[100];
-  VVA_ONLY( int nRef );
-
-  tdsqlite3BtreeEnter(p);
-  assert( p->inTrans>TRANS_NONE && pBt->inTransaction>TRANS_NONE );
-  VVA_ONLY( nRef = tdsqlite3PagerRefcount(pBt->pPager) );
-  assert( nRef>=0 );
-  sCheck.db = db;
-  sCheck.pBt = pBt;
-  sCheck.pPager = pBt->pPager;
-  sCheck.nPage = btreePagecount(sCheck.pBt);
-  sCheck.mxErr = mxErr;
-  sCheck.nErr = 0;
-  sCheck.mallocFailed = 0;
-  sCheck.zPfx = 0;
-  sCheck.v1 = 0;
-  sCheck.v2 = 0;
-  sCheck.aPgRef = 0;
-  sCheck.heap = 0;
-  tdsqlite3StrAccumInit(&sCheck.errMsg, 0, zErr, sizeof(zErr), SQLITE_MAX_LENGTH);
-  sCheck.errMsg.printfFlags = SQLITE_PRINTF_INTERNAL;
-  if( sCheck.nPage==0 ){
-    goto integrity_ck_cleanup;
-  }
-
-  sCheck.aPgRef = tdsqlite3MallocZero((sCheck.nPage / 8)+ 1);
-  if( !sCheck.aPgRef ){
-    sCheck.mallocFailed = 1;
-    goto integrity_ck_cleanup;
-  }
-  sCheck.heap = (u32*)tdsqlite3PageMalloc( pBt->pageSize );
-  if( sCheck.heap==0 ){
-    sCheck.mallocFailed = 1;
-    goto integrity_ck_cleanup;
-  }
-
-  i = PENDING_BYTE_PAGE(pBt);
-  if( i<=sCheck.nPage ) setPageReferenced(&sCheck, i);
-
-  /* Check the integrity of the freelist
-  */
-  sCheck.zPfx = "Main freelist: ";
-  checkList(&sCheck, 1, get4byte(&pBt->pPage1->aData[32]),
-            get4byte(&pBt->pPage1->aData[36]));
-  sCheck.zPfx = 0;
-
-  /* Check all the tables.
-  */
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  if( pBt->autoVacuum ){
-    int mx = 0;
-    int mxInHdr;
-    for(i=0; (int)i<nRoot; i++) if( mx<aRoot[i] ) mx = aRoot[i];
-    mxInHdr = get4byte(&pBt->pPage1->aData[52]);
-    if( mx!=mxInHdr ){
-      checkAppendMsg(&sCheck,
-        "max rootpage (%d) disagrees with header (%d)",
-        mx, mxInHdr
-      );
-    }
-  }else if( get4byte(&pBt->pPage1->aData[64])!=0 ){
-    checkAppendMsg(&sCheck,
-      "incremental_vacuum enabled with a max rootpage of zero"
-    );
-  }
-#endif
-  testcase( pBt->db->flags & SQLITE_CellSizeCk );
-  pBt->db->flags &= ~(u64)SQLITE_CellSizeCk;
-  for(i=0; (int)i<nRoot && sCheck.mxErr; i++){
-    i64 notUsed;
-    if( aRoot[i]==0 ) continue;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( pBt->autoVacuum && aRoot[i]>1 ){
-      checkPtrmap(&sCheck, aRoot[i], PTRMAP_ROOTPAGE, 0);
-    }
-#endif
-    checkTreePage(&sCheck, aRoot[i], &notUsed, LARGEST_INT64);
-  }
-  pBt->db->flags = savedDbFlags;
-
-  /* Make sure every page in the file is referenced
-  */
-  for(i=1; i<=sCheck.nPage && sCheck.mxErr; i++){
-#ifdef SQLITE_OMIT_AUTOVACUUM
-    if( getPageReferenced(&sCheck, i)==0 ){
-      checkAppendMsg(&sCheck, "Page %d is never used", i);
-    }
-#else
-    /* If the database supports auto-vacuum, make sure no tables contain
-    ** references to pointer-map pages.
-    */
-    if( getPageReferenced(&sCheck, i)==0 && 
-       (PTRMAP_PAGENO(pBt, i)!=i || !pBt->autoVacuum) ){
-      checkAppendMsg(&sCheck, "Page %d is never used", i);
-    }
-    if( getPageReferenced(&sCheck, i)!=0 && 
-       (PTRMAP_PAGENO(pBt, i)==i && pBt->autoVacuum) ){
-      checkAppendMsg(&sCheck, "Pointer map page %d is referenced", i);
-    }
-#endif
-  }
-
-  /* Clean  up and report errors.
-  */
-integrity_ck_cleanup:
-  tdsqlite3PageFree(sCheck.heap);
-  tdsqlite3_free(sCheck.aPgRef);
-  if( sCheck.mallocFailed ){
-    tdsqlite3_str_reset(&sCheck.errMsg);
-    sCheck.nErr++;
-  }
-  *pnErr = sCheck.nErr;
-  if( sCheck.nErr==0 ) tdsqlite3_str_reset(&sCheck.errMsg);
-  /* Make sure this analysis did not leave any unref() pages. */
-  assert( nRef==tdsqlite3PagerRefcount(pBt->pPager) );
-  tdsqlite3BtreeLeave(p);
-  return tdsqlite3StrAccumFinish(&sCheck.errMsg);
-}
-#endif /* SQLITE_OMIT_INTEGRITY_CHECK */
-
-/*
-** Return the full pathname of the underlying database file.  Return
-** an empty string if the database is in-memory or a TEMP database.
-**
-** The pager filename is invariant as long as the pager is
-** open so it is safe to access without the BtShared mutex.
-*/
-SQLITE_PRIVATE const char *tdsqlite3BtreeGetFilename(Btree *p){
-  assert( p->pBt->pPager!=0 );
-  return tdsqlite3PagerFilename(p->pBt->pPager, 1);
-}
-
-/*
-** Return the pathname of the journal file for this database. The return
-** value of this routine is the same regardless of whether the journal file
-** has been created or not.
-**
-** The pager journal filename is invariant as long as the pager is
-** open so it is safe to access without the BtShared mutex.
-*/
-SQLITE_PRIVATE const char *tdsqlite3BtreeGetJournalname(Btree *p){
-  assert( p->pBt->pPager!=0 );
-  return tdsqlite3PagerJournalname(p->pBt->pPager);
-}
-
-/*
-** Return non-zero if a transaction is active.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeIsInTrans(Btree *p){
-  assert( p==0 || tdsqlite3_mutex_held(p->db->mutex) );
-  return (p && (p->inTrans==TRANS_WRITE));
-}
-
-#ifndef SQLITE_OMIT_WAL
-/*
-** Run a checkpoint on the Btree passed as the first argument.
-**
-** Return SQLITE_LOCKED if this or any other connection has an open 
-** transaction on the shared-cache the argument Btree is connected to.
-**
-** Parameter eMode is one of SQLITE_CHECKPOINT_PASSIVE, FULL or RESTART.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCheckpoint(Btree *p, int eMode, int *pnLog, int *pnCkpt){
-  int rc = SQLITE_OK;
-  if( p ){
-    BtShared *pBt = p->pBt;
-    tdsqlite3BtreeEnter(p);
-    if( pBt->inTransaction!=TRANS_NONE ){
-      rc = SQLITE_LOCKED;
-    }else{
-      rc = tdsqlite3PagerCheckpoint(pBt->pPager, p->db, eMode, pnLog, pnCkpt);
-    }
-    tdsqlite3BtreeLeave(p);
-  }
-  return rc;
-}
-#endif
-
-/*
-** Return non-zero if a read (or write) transaction is active.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeIsInReadTrans(Btree *p){
-  assert( p );
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  return p->inTrans!=TRANS_NONE;
-}
-
-SQLITE_PRIVATE int tdsqlite3BtreeIsInBackup(Btree *p){
-  assert( p );
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  return p->nBackup!=0;
-}
-
-/*
-** This function returns a pointer to a blob of memory associated with
-** a single shared-btree. The memory is used by client code for its own
-** purposes (for example, to store a high-level schema associated with 
-** the shared-btree). The btree layer manages reference counting issues.
-**
-** The first time this is called on a shared-btree, nBytes bytes of memory
-** are allocated, zeroed, and returned to the caller. For each subsequent 
-** call the nBytes parameter is ignored and a pointer to the same blob
-** of memory returned. 
-**
-** If the nBytes parameter is 0 and the blob of memory has not yet been
-** allocated, a null pointer is returned. If the blob has already been
-** allocated, it is returned as normal.
-**
-** Just before the shared-btree is closed, the function passed as the 
-** xFree argument when the memory allocation was made is invoked on the 
-** blob of allocated memory. The xFree function should not call tdsqlite3_free()
-** on the memory, the btree layer does that.
-*/
-SQLITE_PRIVATE void *tdsqlite3BtreeSchema(Btree *p, int nBytes, void(*xFree)(void *)){
-  BtShared *pBt = p->pBt;
-  tdsqlite3BtreeEnter(p);
-  if( !pBt->pSchema && nBytes ){
-    pBt->pSchema = tdsqlite3DbMallocZero(0, nBytes);
-    pBt->xFreeSchema = xFree;
-  }
-  tdsqlite3BtreeLeave(p);
-  return pBt->pSchema;
-}
-
-/*
-** Return SQLITE_LOCKED_SHAREDCACHE if another user of the same shared 
-** btree as the argument handle holds an exclusive lock on the 
-** sqlite_master table. Otherwise SQLITE_OK.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSchemaLocked(Btree *p){
-  int rc;
-  assert( tdsqlite3_mutex_held(p->db->mutex) );
-  tdsqlite3BtreeEnter(p);
-  rc = querySharedCacheTableLock(p, MASTER_ROOT, READ_LOCK);
-  assert( rc==SQLITE_OK || rc==SQLITE_LOCKED_SHAREDCACHE );
-  tdsqlite3BtreeLeave(p);
-  return rc;
-}
-
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-/*
-** Obtain a lock on the table whose root page is iTab.  The
-** lock is a write lock if isWritelock is true or a read lock
-** if it is false.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeLockTable(Btree *p, int iTab, u8 isWriteLock){
-  int rc = SQLITE_OK;
-  assert( p->inTrans!=TRANS_NONE );
-  if( p->sharable ){
-    u8 lockType = READ_LOCK + isWriteLock;
-    assert( READ_LOCK+1==WRITE_LOCK );
-    assert( isWriteLock==0 || isWriteLock==1 );
-
-    tdsqlite3BtreeEnter(p);
-    rc = querySharedCacheTableLock(p, iTab, lockType);
-    if( rc==SQLITE_OK ){
-      rc = setSharedCacheTableLock(p, iTab, lockType);
-    }
-    tdsqlite3BtreeLeave(p);
-  }
-  return rc;
-}
-#endif
-
-#ifndef SQLITE_OMIT_INCRBLOB
-/*
-** Argument pCsr must be a cursor opened for writing on an 
-** INTKEY table currently pointing at a valid table entry. 
-** This function modifies the data stored as part of that entry.
-**
-** Only the data content may only be modified, it is not possible to 
-** change the length of the data stored. If this function is called with
-** parameters that attempt to write past the end of the existing data,
-** no modifications are made and SQLITE_CORRUPT is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreePutData(BtCursor *pCsr, u32 offset, u32 amt, void *z){
-  int rc;
-  assert( cursorOwnsBtShared(pCsr) );
-  assert( tdsqlite3_mutex_held(pCsr->pBtree->db->mutex) );
-  assert( pCsr->curFlags & BTCF_Incrblob );
-
-  rc = restoreCursorPosition(pCsr);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-  assert( pCsr->eState!=CURSOR_REQUIRESEEK );
-  if( pCsr->eState!=CURSOR_VALID ){
-    return SQLITE_ABORT;
-  }
-
-  /* Save the positions of all other cursors open on this table. This is
-  ** required in case any of them are holding references to an xFetch
-  ** version of the b-tree page modified by the accessPayload call below.
-  **
-  ** Note that pCsr must be open on a INTKEY table and saveCursorPosition()
-  ** and hence saveAllCursors() cannot fail on a BTREE_INTKEY table, hence
-  ** saveAllCursors can only return SQLITE_OK.
-  */
-  VVA_ONLY(rc =) saveAllCursors(pCsr->pBt, pCsr->pgnoRoot, pCsr);
-  assert( rc==SQLITE_OK );
-
-  /* Check some assumptions: 
-  **   (a) the cursor is open for writing,
-  **   (b) there is a read/write transaction open,
-  **   (c) the connection holds a write-lock on the table (if required),
-  **   (d) there are no conflicting read-locks, and
-  **   (e) the cursor points at a valid row of an intKey table.
-  */
-  if( (pCsr->curFlags & BTCF_WriteFlag)==0 ){
-    return SQLITE_READONLY;
-  }
-  assert( (pCsr->pBt->btsFlags & BTS_READ_ONLY)==0
-              && pCsr->pBt->inTransaction==TRANS_WRITE );
-  assert( hasSharedCacheTableLock(pCsr->pBtree, pCsr->pgnoRoot, 0, 2) );
-  assert( !hasReadConflicts(pCsr->pBtree, pCsr->pgnoRoot) );
-  assert( pCsr->pPage->intKey );
-
-  return accessPayload(pCsr, offset, amt, (unsigned char *)z, 1);
-}
-
-/* 
-** Mark this cursor as an incremental blob cursor.
-*/
-SQLITE_PRIVATE void tdsqlite3BtreeIncrblobCursor(BtCursor *pCur){
-  pCur->curFlags |= BTCF_Incrblob;
-  pCur->pBtree->hasIncrblobCur = 1;
-}
-#endif
-
-/*
-** Set both the "read version" (single byte at byte offset 18) and 
-** "write version" (single byte at byte offset 19) fields in the database
-** header to iVersion.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSetVersion(Btree *pBtree, int iVersion){
-  BtShared *pBt = pBtree->pBt;
-  int rc;                         /* Return code */
- 
-  assert( iVersion==1 || iVersion==2 );
-
-  /* If setting the version fields to 1, do not automatically open the
-  ** WAL connection, even if the version fields are currently set to 2.
-  */
-  pBt->btsFlags &= ~BTS_NO_WAL;
-  if( iVersion==1 ) pBt->btsFlags |= BTS_NO_WAL;
-
-  rc = tdsqlite3BtreeBeginTrans(pBtree, 0, 0);
-  if( rc==SQLITE_OK ){
-    u8 *aData = pBt->pPage1->aData;
-    if( aData[18]!=(u8)iVersion || aData[19]!=(u8)iVersion ){
-      rc = tdsqlite3BtreeBeginTrans(pBtree, 2, 0);
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3PagerWrite(pBt->pPage1->pDbPage);
-        if( rc==SQLITE_OK ){
-          aData[18] = (u8)iVersion;
-          aData[19] = (u8)iVersion;
-        }
-      }
-    }
-  }
-
-  pBt->btsFlags &= ~BTS_NO_WAL;
-  return rc;
-}
-
-/*
-** Return true if the cursor has a hint specified.  This routine is
-** only used from within assert() statements
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCursorHasHint(BtCursor *pCsr, unsigned int mask){
-  return (pCsr->hints & mask)!=0;
-}
-
-/*
-** Return true if the given Btree is read-only.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeIsReadonly(Btree *p){
-  return (p->pBt->btsFlags & BTS_READ_ONLY)!=0;
-}
-
-/*
-** Return the size of the header added to each page by this module.
-*/
-SQLITE_PRIVATE int tdsqlite3HeaderSizeBtree(void){ return ROUND8(sizeof(MemPage)); }
-
-#if !defined(SQLITE_OMIT_SHARED_CACHE)
-/*
-** Return true if the Btree passed as the only argument is sharable.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeSharable(Btree *p){
-  return p->sharable;
-}
-
-/*
-** Return the number of connections to the BtShared object accessed by
-** the Btree handle passed as the only argument. For private caches 
-** this is always 1. For shared caches it may be 1 or greater.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeConnectionCount(Btree *p){
-  testcase( p->sharable );
-  return p->pBt->nRef;
-}
-#endif
-
-/************** End of btree.c ***********************************************/
-/************** Begin file backup.c ******************************************/
-/*
-** 2009 January 28
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the implementation of the tdsqlite3_backup_XXX() 
-** API functions and the related features.
-*/
-/* #include "sqliteInt.h" */
-/* #include "btreeInt.h" */
-
-/*
-** Structure allocated for each backup operation.
-*/
-struct tdsqlite3_backup {
-  tdsqlite3* pDestDb;        /* Destination database handle */
-  Btree *pDest;            /* Destination b-tree file */
-  u32 iDestSchema;         /* Original schema cookie in destination */
-  int bDestLocked;         /* True once a write-transaction is open on pDest */
-
-  Pgno iNext;              /* Page number of the next source page to copy */
-  tdsqlite3* pSrcDb;         /* Source database handle */
-  Btree *pSrc;             /* Source b-tree file */
-
-  int rc;                  /* Backup process error code */
-
-  /* These two variables are set by every call to backup_step(). They are
-  ** read by calls to backup_remaining() and backup_pagecount().
-  */
-  Pgno nRemaining;         /* Number of pages left to copy */
-  Pgno nPagecount;         /* Total number of pages to copy */
-
-  int isAttached;          /* True once backup has been registered with pager */
-  tdsqlite3_backup *pNext;   /* Next backup associated with source pager */
-};
-
-/*
-** THREAD SAFETY NOTES:
-**
-**   Once it has been created using backup_init(), a single tdsqlite3_backup
-**   structure may be accessed via two groups of thread-safe entry points:
-**
-**     * Via the tdsqlite3_backup_XXX() API function backup_step() and 
-**       backup_finish(). Both these functions obtain the source database
-**       handle mutex and the mutex associated with the source BtShared 
-**       structure, in that order.
-**
-**     * Via the BackupUpdate() and BackupRestart() functions, which are
-**       invoked by the pager layer to report various state changes in
-**       the page cache associated with the source database. The mutex
-**       associated with the source database BtShared structure will always 
-**       be held when either of these functions are invoked.
-**
-**   The other tdsqlite3_backup_XXX() API functions, backup_remaining() and
-**   backup_pagecount() are not thread-safe functions. If they are called
-**   while some other thread is calling backup_step() or backup_finish(),
-**   the values returned may be invalid. There is no way for a call to
-**   BackupUpdate() or BackupRestart() to interfere with backup_remaining()
-**   or backup_pagecount().
-**
-**   Depending on the SQLite configuration, the database handles and/or
-**   the Btree objects may have their own mutexes that require locking.
-**   Non-sharable Btrees (in-memory databases for example), do not have
-**   associated mutexes.
-*/
-
-/*
-** Return a pointer corresponding to database zDb (i.e. "main", "temp")
-** in connection handle pDb. If such a database cannot be found, return
-** a NULL pointer and write an error message to pErrorDb.
-**
-** If the "temp" database is requested, it may need to be opened by this 
-** function. If an error occurs while doing so, return 0 and write an 
-** error message to pErrorDb.
-*/
-static Btree *findBtree(tdsqlite3 *pErrorDb, tdsqlite3 *pDb, const char *zDb){
-  int i = tdsqlite3FindDbName(pDb, zDb);
-
-  if( i==1 ){
-    Parse sParse;
-    int rc = 0;
-    memset(&sParse, 0, sizeof(sParse));
-    sParse.db = pDb;
-    if( tdsqlite3OpenTempDatabase(&sParse) ){
-      tdsqlite3ErrorWithMsg(pErrorDb, sParse.rc, "%s", sParse.zErrMsg);
-      rc = SQLITE_ERROR;
-    }
-    tdsqlite3DbFree(pErrorDb, sParse.zErrMsg);
-    tdsqlite3ParserReset(&sParse);
-    if( rc ){
-      return 0;
-    }
-  }
-
-  if( i<0 ){
-    tdsqlite3ErrorWithMsg(pErrorDb, SQLITE_ERROR, "unknown database %s", zDb);
-    return 0;
-  }
-
-  return pDb->aDb[i].pBt;
-}
-
-/*
-** Attempt to set the page size of the destination to match the page size
-** of the source.
-*/
-static int setDestPgsz(tdsqlite3_backup *p){
-  int rc;
-  rc = tdsqlite3BtreeSetPageSize(p->pDest,tdsqlite3BtreeGetPageSize(p->pSrc),-1,0);
-  return rc;
-}
-
-/*
-** Check that there is no open read-transaction on the b-tree passed as the
-** second argument. If there is not, return SQLITE_OK. Otherwise, if there
-** is an open read-transaction, return SQLITE_ERROR and leave an error 
-** message in database handle db.
-*/
-static int checkReadTransaction(tdsqlite3 *db, Btree *p){
-  if( tdsqlite3BtreeIsInReadTrans(p) ){
-    tdsqlite3ErrorWithMsg(db, SQLITE_ERROR, "destination database is in use");
-    return SQLITE_ERROR;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Create an tdsqlite3_backup process to copy the contents of zSrcDb from
-** connection handle pSrcDb to zDestDb in pDestDb. If successful, return
-** a pointer to the new tdsqlite3_backup object.
-**
-** If an error occurs, NULL is returned and an error code and error message
-** stored in database handle pDestDb.
-*/
-SQLITE_API tdsqlite3_backup *tdsqlite3_backup_init(
-  tdsqlite3* pDestDb,                     /* Database to write to */
-  const char *zDestDb,                  /* Name of database within pDestDb */
-  tdsqlite3* pSrcDb,                      /* Database connection to read from */
-  const char *zSrcDb                    /* Name of database within pSrcDb */
-){
-  tdsqlite3_backup *p;                    /* Value to return */
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(pSrcDb)||!tdsqlite3SafetyCheckOk(pDestDb) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-  {
-    int srcNKey, destNKey;
-    void *zKey;
-
-    tdsqlite3CodecGetKey(pSrcDb, sqlcipher_find_db_index(pSrcDb, zSrcDb), &zKey, &srcNKey);
-    tdsqlite3CodecGetKey(pDestDb, sqlcipher_find_db_index(pDestDb, zDestDb), &zKey, &destNKey);
-    zKey = NULL;
-
-    /* either both databases must be plaintext, or both must be encrypted */
-    if((srcNKey == 0 && destNKey > 0) || (srcNKey > 0 && destNKey == 0)) {
-      tdsqlite3ErrorWithMsg(pDestDb, SQLITE_ERROR, "backup is not supported with encrypted databases");
-      return NULL;
-    }
-  }
-#endif
-/* END SQLCIPHER */
-
-  /* Lock the source database handle. The destination database
-  ** handle is not locked in this routine, but it is locked in
-  ** tdsqlite3_backup_step(). The user is required to ensure that no
-  ** other thread accesses the destination handle for the duration
-  ** of the backup operation.  Any attempt to use the destination
-  ** database connection while a backup is in progress may cause
-  ** a malfunction or a deadlock.
-  */
-  tdsqlite3_mutex_enter(pSrcDb->mutex);
-  tdsqlite3_mutex_enter(pDestDb->mutex);
-
-  if( pSrcDb==pDestDb ){
-    tdsqlite3ErrorWithMsg(
-        pDestDb, SQLITE_ERROR, "source and destination must be distinct"
-    );
-    p = 0;
-  }else {
-    /* Allocate space for a new tdsqlite3_backup object...
-    ** EVIDENCE-OF: R-64852-21591 The tdsqlite3_backup object is created by a
-    ** call to tdsqlite3_backup_init() and is destroyed by a call to
-    ** tdsqlite3_backup_finish(). */
-    p = (tdsqlite3_backup *)tdsqlite3MallocZero(sizeof(tdsqlite3_backup));
-    if( !p ){
-      tdsqlite3Error(pDestDb, SQLITE_NOMEM_BKPT);
-    }
-  }
-
-  /* If the allocation succeeded, populate the new object. */
-  if( p ){
-    p->pSrc = findBtree(pDestDb, pSrcDb, zSrcDb);
-    p->pDest = findBtree(pDestDb, pDestDb, zDestDb);
-    p->pDestDb = pDestDb;
-    p->pSrcDb = pSrcDb;
-    p->iNext = 1;
-    p->isAttached = 0;
-
-    if( 0==p->pSrc || 0==p->pDest 
-     || checkReadTransaction(pDestDb, p->pDest)!=SQLITE_OK 
-     ){
-      /* One (or both) of the named databases did not exist or an OOM
-      ** error was hit. Or there is a transaction open on the destination
-      ** database. The error has already been written into the pDestDb 
-      ** handle. All that is left to do here is free the tdsqlite3_backup 
-      ** structure.  */
-      tdsqlite3_free(p);
-      p = 0;
-    }
-  }
-  if( p ){
-    p->pSrc->nBackup++;
-  }
-
-  tdsqlite3_mutex_leave(pDestDb->mutex);
-  tdsqlite3_mutex_leave(pSrcDb->mutex);
-  return p;
-}
-
-/*
-** Argument rc is an SQLite error code. Return true if this error is 
-** considered fatal if encountered during a backup operation. All errors
-** are considered fatal except for SQLITE_BUSY and SQLITE_LOCKED.
-*/
-static int isFatalError(int rc){
-  return (rc!=SQLITE_OK && rc!=SQLITE_BUSY && ALWAYS(rc!=SQLITE_LOCKED));
-}
-
-/*
-** Parameter zSrcData points to a buffer containing the data for 
-** page iSrcPg from the source database. Copy this data into the 
-** destination database.
-*/
-static int backupOnePage(
-  tdsqlite3_backup *p,              /* Backup handle */
-  Pgno iSrcPg,                    /* Source database page to backup */
-  const u8 *zSrcData,             /* Source database page data */
-  int bUpdate                     /* True for an update, false otherwise */
-){
-  Pager * const pDestPager = tdsqlite3BtreePager(p->pDest);
-  const int nSrcPgsz = tdsqlite3BtreeGetPageSize(p->pSrc);
-  int nDestPgsz = tdsqlite3BtreeGetPageSize(p->pDest);
-  const int nCopy = MIN(nSrcPgsz, nDestPgsz);
-  const i64 iEnd = (i64)iSrcPg*(i64)nSrcPgsz;
-#ifdef SQLITE_HAS_CODEC
-  /* Use BtreeGetReserveNoMutex() for the source b-tree, as although it is
-  ** guaranteed that the shared-mutex is held by this thread, handle
-  ** p->pSrc may not actually be the owner.  */
-  int nSrcReserve = tdsqlite3BtreeGetReserveNoMutex(p->pSrc);
-  int nDestReserve = tdsqlite3BtreeGetOptimalReserve(p->pDest);
-#endif
-  int rc = SQLITE_OK;
-  i64 iOff;
-
-  assert( tdsqlite3BtreeGetReserveNoMutex(p->pSrc)>=0 );
-  assert( p->bDestLocked );
-  assert( !isFatalError(p->rc) );
-  assert( iSrcPg!=PENDING_BYTE_PAGE(p->pSrc->pBt) );
-  assert( zSrcData );
-
-  /* Catch the case where the destination is an in-memory database and the
-  ** page sizes of the source and destination differ. 
-  */
-  if( nSrcPgsz!=nDestPgsz && tdsqlite3PagerIsMemdb(pDestPager) ){
-    rc = SQLITE_READONLY;
-  }
-
-#ifdef SQLITE_HAS_CODEC
-  /* Backup is not possible if the page size of the destination is changing
-  ** and a codec is in use.
-  */
-  if( nSrcPgsz!=nDestPgsz && tdsqlite3PagerGetCodec(pDestPager)!=0 ){
-    rc = SQLITE_READONLY;
-  }
-
-  /* Backup is not possible if the number of bytes of reserve space differ
-  ** between source and destination.  If there is a difference, try to
-  ** fix the destination to agree with the source.  If that is not possible,
-  ** then the backup cannot proceed.
-  */
-  if( nSrcReserve!=nDestReserve ){
-    u32 newPgsz = nSrcPgsz;
-    rc = tdsqlite3PagerSetPagesize(pDestPager, &newPgsz, nSrcReserve);
-    if( rc==SQLITE_OK && newPgsz!=(u32)nSrcPgsz ) rc = SQLITE_READONLY;
-  }
-#endif
-
-  /* This loop runs once for each destination page spanned by the source 
-  ** page. For each iteration, variable iOff is set to the byte offset
-  ** of the destination page.
-  */
-  for(iOff=iEnd-(i64)nSrcPgsz; rc==SQLITE_OK && iOff<iEnd; iOff+=nDestPgsz){
-    DbPage *pDestPg = 0;
-    Pgno iDest = (Pgno)(iOff/nDestPgsz)+1;
-    if( iDest==PENDING_BYTE_PAGE(p->pDest->pBt) ) continue;
-    if( SQLITE_OK==(rc = tdsqlite3PagerGet(pDestPager, iDest, &pDestPg, 0))
-     && SQLITE_OK==(rc = tdsqlite3PagerWrite(pDestPg))
-    ){
-      const u8 *zIn = &zSrcData[iOff%nSrcPgsz];
-      u8 *zDestData = tdsqlite3PagerGetData(pDestPg);
-      u8 *zOut = &zDestData[iOff%nDestPgsz];
-
-      /* Copy the data from the source page into the destination page.
-      ** Then clear the Btree layer MemPage.isInit flag. Both this module
-      ** and the pager code use this trick (clearing the first byte
-      ** of the page 'extra' space to invalidate the Btree layers
-      ** cached parse of the page). MemPage.isInit is marked 
-      ** "MUST BE FIRST" for this purpose.
-      */
-      memcpy(zOut, zIn, nCopy);
-      ((u8 *)tdsqlite3PagerGetExtra(pDestPg))[0] = 0;
-      if( iOff==0 && bUpdate==0 ){
-        tdsqlite3Put4byte(&zOut[28], tdsqlite3BtreeLastPage(p->pSrc));
-      }
-    }
-    tdsqlite3PagerUnref(pDestPg);
-  }
-
-  return rc;
-}
-
-/*
-** If pFile is currently larger than iSize bytes, then truncate it to
-** exactly iSize bytes. If pFile is not larger than iSize bytes, then
-** this function is a no-op.
-**
-** Return SQLITE_OK if everything is successful, or an SQLite error 
-** code if an error occurs.
-*/
-static int backupTruncateFile(tdsqlite3_file *pFile, i64 iSize){
-  i64 iCurrent;
-  int rc = tdsqlite3OsFileSize(pFile, &iCurrent);
-  if( rc==SQLITE_OK && iCurrent>iSize ){
-    rc = tdsqlite3OsTruncate(pFile, iSize);
-  }
-  return rc;
-}
-
-/*
-** Register this backup object with the associated source pager for
-** callbacks when pages are changed or the cache invalidated.
-*/
-static void attachBackupObject(tdsqlite3_backup *p){
-  tdsqlite3_backup **pp;
-  assert( tdsqlite3BtreeHoldsMutex(p->pSrc) );
-  pp = tdsqlite3PagerBackupPtr(tdsqlite3BtreePager(p->pSrc));
-  p->pNext = *pp;
-  *pp = p;
-  p->isAttached = 1;
-}
-
-/*
-** Copy nPage pages from the source b-tree to the destination.
-*/
-SQLITE_API int tdsqlite3_backup_step(tdsqlite3_backup *p, int nPage){
-  int rc;
-  int destMode;       /* Destination journal mode */
-  int pgszSrc = 0;    /* Source page size */
-  int pgszDest = 0;   /* Destination page size */
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( p==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(p->pSrcDb->mutex);
-  tdsqlite3BtreeEnter(p->pSrc);
-  if( p->pDestDb ){
-    tdsqlite3_mutex_enter(p->pDestDb->mutex);
-  }
-
-  rc = p->rc;
-  if( !isFatalError(rc) ){
-    Pager * const pSrcPager = tdsqlite3BtreePager(p->pSrc);     /* Source pager */
-    Pager * const pDestPager = tdsqlite3BtreePager(p->pDest);   /* Dest pager */
-    int ii;                            /* Iterator variable */
-    int nSrcPage = -1;                 /* Size of source db in pages */
-    int bCloseTrans = 0;               /* True if src db requires unlocking */
-
-    /* If the source pager is currently in a write-transaction, return
-    ** SQLITE_BUSY immediately.
-    */
-    if( p->pDestDb && p->pSrc->pBt->inTransaction==TRANS_WRITE ){
-      rc = SQLITE_BUSY;
-    }else{
-      rc = SQLITE_OK;
-    }
-
-    /* If there is no open read-transaction on the source database, open
-    ** one now. If a transaction is opened here, then it will be closed
-    ** before this function exits.
-    */
-    if( rc==SQLITE_OK && 0==tdsqlite3BtreeIsInReadTrans(p->pSrc) ){
-      rc = tdsqlite3BtreeBeginTrans(p->pSrc, 0, 0);
-      bCloseTrans = 1;
-    }
-
-    /* If the destination database has not yet been locked (i.e. if this
-    ** is the first call to backup_step() for the current backup operation),
-    ** try to set its page size to the same as the source database. This
-    ** is especially important on ZipVFS systems, as in that case it is
-    ** not possible to create a database file that uses one page size by
-    ** writing to it with another.  */
-    if( p->bDestLocked==0 && rc==SQLITE_OK && setDestPgsz(p)==SQLITE_NOMEM ){
-      rc = SQLITE_NOMEM;
-    }
-
-    /* Lock the destination database, if it is not locked already. */
-    if( SQLITE_OK==rc && p->bDestLocked==0
-     && SQLITE_OK==(rc = tdsqlite3BtreeBeginTrans(p->pDest, 2,
-                                                (int*)&p->iDestSchema)) 
-    ){
-      p->bDestLocked = 1;
-    }
-
-    /* Do not allow backup if the destination database is in WAL mode
-    ** and the page sizes are different between source and destination */
-    pgszSrc = tdsqlite3BtreeGetPageSize(p->pSrc);
-    pgszDest = tdsqlite3BtreeGetPageSize(p->pDest);
-    destMode = tdsqlite3PagerGetJournalMode(tdsqlite3BtreePager(p->pDest));
-    if( SQLITE_OK==rc && destMode==PAGER_JOURNALMODE_WAL && pgszSrc!=pgszDest ){
-      rc = SQLITE_READONLY;
-    }
-  
-    /* Now that there is a read-lock on the source database, query the
-    ** source pager for the number of pages in the database.
-    */
-    nSrcPage = (int)tdsqlite3BtreeLastPage(p->pSrc);
-    assert( nSrcPage>=0 );
-    for(ii=0; (nPage<0 || ii<nPage) && p->iNext<=(Pgno)nSrcPage && !rc; ii++){
-      const Pgno iSrcPg = p->iNext;                 /* Source page number */
-      if( iSrcPg!=PENDING_BYTE_PAGE(p->pSrc->pBt) ){
-        DbPage *pSrcPg;                             /* Source page object */
-        rc = tdsqlite3PagerGet(pSrcPager, iSrcPg, &pSrcPg,PAGER_GET_READONLY);
-        if( rc==SQLITE_OK ){
-          rc = backupOnePage(p, iSrcPg, tdsqlite3PagerGetData(pSrcPg), 0);
-          tdsqlite3PagerUnref(pSrcPg);
-        }
-      }
-      p->iNext++;
-    }
-    if( rc==SQLITE_OK ){
-      p->nPagecount = nSrcPage;
-      p->nRemaining = nSrcPage+1-p->iNext;
-      if( p->iNext>(Pgno)nSrcPage ){
-        rc = SQLITE_DONE;
-      }else if( !p->isAttached ){
-        attachBackupObject(p);
-      }
-    }
-  
-    /* Update the schema version field in the destination database. This
-    ** is to make sure that the schema-version really does change in
-    ** the case where the source and destination databases have the
-    ** same schema version.
-    */
-    if( rc==SQLITE_DONE ){
-      if( nSrcPage==0 ){
-        rc = tdsqlite3BtreeNewDb(p->pDest);
-        nSrcPage = 1;
-      }
-      if( rc==SQLITE_OK || rc==SQLITE_DONE ){
-        rc = tdsqlite3BtreeUpdateMeta(p->pDest,1,p->iDestSchema+1);
-      }
-      if( rc==SQLITE_OK ){
-        if( p->pDestDb ){
-          tdsqlite3ResetAllSchemasOfConnection(p->pDestDb);
-        }
-        if( destMode==PAGER_JOURNALMODE_WAL ){
-          rc = tdsqlite3BtreeSetVersion(p->pDest, 2);
-        }
-      }
-      if( rc==SQLITE_OK ){
-        int nDestTruncate;
-        /* Set nDestTruncate to the final number of pages in the destination
-        ** database. The complication here is that the destination page
-        ** size may be different to the source page size. 
-        **
-        ** If the source page size is smaller than the destination page size, 
-        ** round up. In this case the call to tdsqlite3OsTruncate() below will
-        ** fix the size of the file. However it is important to call
-        ** tdsqlite3PagerTruncateImage() here so that any pages in the 
-        ** destination file that lie beyond the nDestTruncate page mark are
-        ** journalled by PagerCommitPhaseOne() before they are destroyed
-        ** by the file truncation.
-        */
-        assert( pgszSrc==tdsqlite3BtreeGetPageSize(p->pSrc) );
-        assert( pgszDest==tdsqlite3BtreeGetPageSize(p->pDest) );
-        if( pgszSrc<pgszDest ){
-          int ratio = pgszDest/pgszSrc;
-          nDestTruncate = (nSrcPage+ratio-1)/ratio;
-          if( nDestTruncate==(int)PENDING_BYTE_PAGE(p->pDest->pBt) ){
-            nDestTruncate--;
-          }
-        }else{
-          nDestTruncate = nSrcPage * (pgszSrc/pgszDest);
-        }
-        assert( nDestTruncate>0 );
-
-        if( pgszSrc<pgszDest ){
-          /* If the source page-size is smaller than the destination page-size,
-          ** two extra things may need to happen:
-          **
-          **   * The destination may need to be truncated, and
-          **
-          **   * Data stored on the pages immediately following the 
-          **     pending-byte page in the source database may need to be
-          **     copied into the destination database.
-          */
-          const i64 iSize = (i64)pgszSrc * (i64)nSrcPage;
-          tdsqlite3_file * const pFile = tdsqlite3PagerFile(pDestPager);
-          Pgno iPg;
-          int nDstPage;
-          i64 iOff;
-          i64 iEnd;
-
-          assert( pFile );
-          assert( nDestTruncate==0 
-              || (i64)nDestTruncate*(i64)pgszDest >= iSize || (
-                nDestTruncate==(int)(PENDING_BYTE_PAGE(p->pDest->pBt)-1)
-             && iSize>=PENDING_BYTE && iSize<=PENDING_BYTE+pgszDest
-          ));
-
-          /* This block ensures that all data required to recreate the original
-          ** database has been stored in the journal for pDestPager and the
-          ** journal synced to disk. So at this point we may safely modify
-          ** the database file in any way, knowing that if a power failure
-          ** occurs, the original database will be reconstructed from the 
-          ** journal file.  */
-          tdsqlite3PagerPagecount(pDestPager, &nDstPage);
-          for(iPg=nDestTruncate; rc==SQLITE_OK && iPg<=(Pgno)nDstPage; iPg++){
-            if( iPg!=PENDING_BYTE_PAGE(p->pDest->pBt) ){
-              DbPage *pPg;
-              rc = tdsqlite3PagerGet(pDestPager, iPg, &pPg, 0);
-              if( rc==SQLITE_OK ){
-                rc = tdsqlite3PagerWrite(pPg);
-                tdsqlite3PagerUnref(pPg);
-              }
-            }
-          }
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3PagerCommitPhaseOne(pDestPager, 0, 1);
-          }
-
-          /* Write the extra pages and truncate the database file as required */
-          iEnd = MIN(PENDING_BYTE + pgszDest, iSize);
-          for(
-            iOff=PENDING_BYTE+pgszSrc; 
-            rc==SQLITE_OK && iOff<iEnd; 
-            iOff+=pgszSrc
-          ){
-            PgHdr *pSrcPg = 0;
-            const Pgno iSrcPg = (Pgno)((iOff/pgszSrc)+1);
-            rc = tdsqlite3PagerGet(pSrcPager, iSrcPg, &pSrcPg, 0);
-            if( rc==SQLITE_OK ){
-              u8 *zData = tdsqlite3PagerGetData(pSrcPg);
-              rc = tdsqlite3OsWrite(pFile, zData, pgszSrc, iOff);
-            }
-            tdsqlite3PagerUnref(pSrcPg);
-          }
-          if( rc==SQLITE_OK ){
-            rc = backupTruncateFile(pFile, iSize);
-          }
-
-          /* Sync the database file to disk. */
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3PagerSync(pDestPager, 0);
-          }
-        }else{
-          tdsqlite3PagerTruncateImage(pDestPager, nDestTruncate);
-          rc = tdsqlite3PagerCommitPhaseOne(pDestPager, 0, 0);
-        }
-    
-        /* Finish committing the transaction to the destination database. */
-        if( SQLITE_OK==rc
-         && SQLITE_OK==(rc = tdsqlite3BtreeCommitPhaseTwo(p->pDest, 0))
-        ){
-          rc = SQLITE_DONE;
-        }
-      }
-    }
-  
-    /* If bCloseTrans is true, then this function opened a read transaction
-    ** on the source database. Close the read transaction here. There is
-    ** no need to check the return values of the btree methods here, as
-    ** "committing" a read-only transaction cannot fail.
-    */
-    if( bCloseTrans ){
-      TESTONLY( int rc2 );
-      TESTONLY( rc2  = ) tdsqlite3BtreeCommitPhaseOne(p->pSrc, 0);
-      TESTONLY( rc2 |= ) tdsqlite3BtreeCommitPhaseTwo(p->pSrc, 0);
-      assert( rc2==SQLITE_OK );
-    }
-  
-    if( rc==SQLITE_IOERR_NOMEM ){
-      rc = SQLITE_NOMEM_BKPT;
-    }
-    p->rc = rc;
-  }
-  if( p->pDestDb ){
-    tdsqlite3_mutex_leave(p->pDestDb->mutex);
-  }
-  tdsqlite3BtreeLeave(p->pSrc);
-  tdsqlite3_mutex_leave(p->pSrcDb->mutex);
-  return rc;
-}
-
-/*
-** Release all resources associated with an tdsqlite3_backup* handle.
-*/
-SQLITE_API int tdsqlite3_backup_finish(tdsqlite3_backup *p){
-  tdsqlite3_backup **pp;                 /* Ptr to head of pagers backup list */
-  tdsqlite3 *pSrcDb;                     /* Source database connection */
-  int rc;                              /* Value to return */
-
-  /* Enter the mutexes */
-  if( p==0 ) return SQLITE_OK;
-  pSrcDb = p->pSrcDb;
-  tdsqlite3_mutex_enter(pSrcDb->mutex);
-  tdsqlite3BtreeEnter(p->pSrc);
-  if( p->pDestDb ){
-    tdsqlite3_mutex_enter(p->pDestDb->mutex);
-  }
-
-  /* Detach this backup from the source pager. */
-  if( p->pDestDb ){
-    p->pSrc->nBackup--;
-  }
-  if( p->isAttached ){
-    pp = tdsqlite3PagerBackupPtr(tdsqlite3BtreePager(p->pSrc));
-    assert( pp!=0 );
-    while( *pp!=p ){
-      pp = &(*pp)->pNext;
-      assert( pp!=0 );
-    }
-    *pp = p->pNext;
-  }
-
-  /* If a transaction is still open on the Btree, roll it back. */
-  tdsqlite3BtreeRollback(p->pDest, SQLITE_OK, 0);
-
-  /* Set the error code of the destination database handle. */
-  rc = (p->rc==SQLITE_DONE) ? SQLITE_OK : p->rc;
-  if( p->pDestDb ){
-    tdsqlite3Error(p->pDestDb, rc);
-
-    /* Exit the mutexes and free the backup context structure. */
-    tdsqlite3LeaveMutexAndCloseZombie(p->pDestDb);
-  }
-  tdsqlite3BtreeLeave(p->pSrc);
-  if( p->pDestDb ){
-    /* EVIDENCE-OF: R-64852-21591 The tdsqlite3_backup object is created by a
-    ** call to tdsqlite3_backup_init() and is destroyed by a call to
-    ** tdsqlite3_backup_finish(). */
-    tdsqlite3_free(p);
-  }
-  tdsqlite3LeaveMutexAndCloseZombie(pSrcDb);
-  return rc;
-}
-
-/*
-** Return the number of pages still to be backed up as of the most recent
-** call to tdsqlite3_backup_step().
-*/
-SQLITE_API int tdsqlite3_backup_remaining(tdsqlite3_backup *p){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( p==0 ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  return p->nRemaining;
-}
-
-/*
-** Return the total number of pages in the source database as of the most 
-** recent call to tdsqlite3_backup_step().
-*/
-SQLITE_API int tdsqlite3_backup_pagecount(tdsqlite3_backup *p){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( p==0 ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  return p->nPagecount;
-}
-
-/*
-** This function is called after the contents of page iPage of the
-** source database have been modified. If page iPage has already been 
-** copied into the destination database, then the data written to the
-** destination is now invalidated. The destination copy of iPage needs
-** to be updated with the new data before the backup operation is
-** complete.
-**
-** It is assumed that the mutex associated with the BtShared object
-** corresponding to the source database is held when this function is
-** called.
-*/
-static SQLITE_NOINLINE void backupUpdate(
-  tdsqlite3_backup *p,
-  Pgno iPage,
-  const u8 *aData
-){
-  assert( p!=0 );
-  do{
-    assert( tdsqlite3_mutex_held(p->pSrc->pBt->mutex) );
-    if( !isFatalError(p->rc) && iPage<p->iNext ){
-      /* The backup process p has already copied page iPage. But now it
-      ** has been modified by a transaction on the source pager. Copy
-      ** the new data into the backup.
-      */
-      int rc;
-      assert( p->pDestDb );
-      tdsqlite3_mutex_enter(p->pDestDb->mutex);
-      rc = backupOnePage(p, iPage, aData, 1);
-      tdsqlite3_mutex_leave(p->pDestDb->mutex);
-      assert( rc!=SQLITE_BUSY && rc!=SQLITE_LOCKED );
-      if( rc!=SQLITE_OK ){
-        p->rc = rc;
-      }
-    }
-  }while( (p = p->pNext)!=0 );
-}
-SQLITE_PRIVATE void tdsqlite3BackupUpdate(tdsqlite3_backup *pBackup, Pgno iPage, const u8 *aData){
-  if( pBackup ) backupUpdate(pBackup, iPage, aData);
-}
-
-/*
-** Restart the backup process. This is called when the pager layer
-** detects that the database has been modified by an external database
-** connection. In this case there is no way of knowing which of the
-** pages that have been copied into the destination database are still 
-** valid and which are not, so the entire process needs to be restarted.
-**
-** It is assumed that the mutex associated with the BtShared object
-** corresponding to the source database is held when this function is
-** called.
-*/
-SQLITE_PRIVATE void tdsqlite3BackupRestart(tdsqlite3_backup *pBackup){
-  tdsqlite3_backup *p;                   /* Iterator variable */
-  for(p=pBackup; p; p=p->pNext){
-    assert( tdsqlite3_mutex_held(p->pSrc->pBt->mutex) );
-    p->iNext = 1;
-  }
-}
-
-#ifndef SQLITE_OMIT_VACUUM
-/*
-** Copy the complete content of pBtFrom into pBtTo.  A transaction
-** must be active for both files.
-**
-** The size of file pTo may be reduced by this operation. If anything 
-** goes wrong, the transaction on pTo is rolled back. If successful, the 
-** transaction is committed before returning.
-*/
-SQLITE_PRIVATE int tdsqlite3BtreeCopyFile(Btree *pTo, Btree *pFrom){
-  int rc;
-  tdsqlite3_file *pFd;              /* File descriptor for database pTo */
-  tdsqlite3_backup b;
-  tdsqlite3BtreeEnter(pTo);
-  tdsqlite3BtreeEnter(pFrom);
-
-  assert( tdsqlite3BtreeIsInTrans(pTo) );
-  pFd = tdsqlite3PagerFile(tdsqlite3BtreePager(pTo));
-  if( pFd->pMethods ){
-    i64 nByte = tdsqlite3BtreeGetPageSize(pFrom)*(i64)tdsqlite3BtreeLastPage(pFrom);
-    rc = tdsqlite3OsFileControl(pFd, SQLITE_FCNTL_OVERWRITE, &nByte);
-    if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
-    if( rc ) goto copy_finished;
-  }
-
-  /* Set up an tdsqlite3_backup object. tdsqlite3_backup.pDestDb must be set
-  ** to 0. This is used by the implementations of tdsqlite3_backup_step()
-  ** and tdsqlite3_backup_finish() to detect that they are being called
-  ** from this function, not directly by the user.
-  */
-  memset(&b, 0, sizeof(b));
-  b.pSrcDb = pFrom->db;
-  b.pSrc = pFrom;
-  b.pDest = pTo;
-  b.iNext = 1;
-
-#ifdef SQLITE_HAS_CODEC
-  tdsqlite3PagerAlignReserve(tdsqlite3BtreePager(pTo), tdsqlite3BtreePager(pFrom));
-#endif
-
-  /* 0x7FFFFFFF is the hard limit for the number of pages in a database
-  ** file. By passing this as the number of pages to copy to
-  ** tdsqlite3_backup_step(), we can guarantee that the copy finishes 
-  ** within a single call (unless an error occurs). The assert() statement
-  ** checks this assumption - (p->rc) should be set to either SQLITE_DONE 
-  ** or an error code.  */
-  tdsqlite3_backup_step(&b, 0x7FFFFFFF);
-  assert( b.rc!=SQLITE_OK );
-
-  rc = tdsqlite3_backup_finish(&b);
-  if( rc==SQLITE_OK ){
-    pTo->pBt->btsFlags &= ~BTS_PAGESIZE_FIXED;
-  }else{
-    tdsqlite3PagerClearCache(tdsqlite3BtreePager(b.pDest));
-  }
-
-  assert( tdsqlite3BtreeIsInTrans(pTo)==0 );
-copy_finished:
-  tdsqlite3BtreeLeave(pFrom);
-  tdsqlite3BtreeLeave(pTo);
-  return rc;
-}
-#endif /* SQLITE_OMIT_VACUUM */
-
-/************** End of backup.c **********************************************/
-/************** Begin file vdbemem.c *****************************************/
-/*
-** 2004 May 26
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains code use to manipulate "Mem" structure.  A "Mem"
-** stores a single value in the VDBE.  Mem is an opaque structure visible
-** only within the VDBE.  Interface routines refer to a Mem using the
-** name sqlite_value
-*/
-/* #include "sqliteInt.h" */
-/* #include "vdbeInt.h" */
-
-/* True if X is a power of two.  0 is considered a power of two here.
-** In other words, return true if X has at most one bit set.
-*/
-#define ISPOWEROF2(X)  (((X)&((X)-1))==0)
-
-#ifdef SQLITE_DEBUG
-/*
-** Check invariants on a Mem object.
-**
-** This routine is intended for use inside of assert() statements, like
-** this:    assert( tdsqlite3VdbeCheckMemInvariants(pMem) );
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeCheckMemInvariants(Mem *p){
-  /* If MEM_Dyn is set then Mem.xDel!=0.  
-  ** Mem.xDel might not be initialized if MEM_Dyn is clear.
-  */
-  assert( (p->flags & MEM_Dyn)==0 || p->xDel!=0 );
-
-  /* MEM_Dyn may only be set if Mem.szMalloc==0.  In this way we
-  ** ensure that if Mem.szMalloc>0 then it is safe to do
-  ** Mem.z = Mem.zMalloc without having to check Mem.flags&MEM_Dyn.
-  ** That saves a few cycles in inner loops. */
-  assert( (p->flags & MEM_Dyn)==0 || p->szMalloc==0 );
-
-  /* Cannot have more than one of MEM_Int, MEM_Real, or MEM_IntReal */
-  assert( ISPOWEROF2(p->flags & (MEM_Int|MEM_Real|MEM_IntReal)) );
-
-  if( p->flags & MEM_Null ){
-    /* Cannot be both MEM_Null and some other type */
-    assert( (p->flags & (MEM_Int|MEM_Real|MEM_Str|MEM_Blob|MEM_Agg))==0 );
-
-    /* If MEM_Null is set, then either the value is a pure NULL (the usual
-    ** case) or it is a pointer set using tdsqlite3_bind_pointer() or
-    ** tdsqlite3_result_pointer().  If a pointer, then MEM_Term must also be
-    ** set.
-    */
-    if( (p->flags & (MEM_Term|MEM_Subtype))==(MEM_Term|MEM_Subtype) ){
-      /* This is a pointer type.  There may be a flag to indicate what to
-      ** do with the pointer. */
-      assert( ((p->flags&MEM_Dyn)!=0 ? 1 : 0) +
-              ((p->flags&MEM_Ephem)!=0 ? 1 : 0) +
-              ((p->flags&MEM_Static)!=0 ? 1 : 0) <= 1 );
-
-      /* No other bits set */
-      assert( (p->flags & ~(MEM_Null|MEM_Term|MEM_Subtype|MEM_FromBind
-                           |MEM_Dyn|MEM_Ephem|MEM_Static))==0 );
-    }else{
-      /* A pure NULL might have other flags, such as MEM_Static, MEM_Dyn,
-      ** MEM_Ephem, MEM_Cleared, or MEM_Subtype */
-    }
-  }else{
-    /* The MEM_Cleared bit is only allowed on NULLs */
-    assert( (p->flags & MEM_Cleared)==0 );
-  }
-
-  /* The szMalloc field holds the correct memory allocation size */
-  assert( p->szMalloc==0
-       || p->szMalloc==tdsqlite3DbMallocSize(p->db,p->zMalloc) );
-
-  /* If p holds a string or blob, the Mem.z must point to exactly
-  ** one of the following:
-  **
-  **   (1) Memory in Mem.zMalloc and managed by the Mem object
-  **   (2) Memory to be freed using Mem.xDel
-  **   (3) An ephemeral string or blob
-  **   (4) A static string or blob
-  */
-  if( (p->flags & (MEM_Str|MEM_Blob)) && p->n>0 ){
-    assert( 
-      ((p->szMalloc>0 && p->z==p->zMalloc)? 1 : 0) +
-      ((p->flags&MEM_Dyn)!=0 ? 1 : 0) +
-      ((p->flags&MEM_Ephem)!=0 ? 1 : 0) +
-      ((p->flags&MEM_Static)!=0 ? 1 : 0) == 1
-    );
-  }
-  return 1;
-}
-#endif
-
-/*
-** Render a Mem object which is one of MEM_Int, MEM_Real, or MEM_IntReal
-** into a buffer.
-*/
-static void vdbeMemRenderNum(int sz, char *zBuf, Mem *p){
-  StrAccum acc;
-  assert( p->flags & (MEM_Int|MEM_Real|MEM_IntReal) );
-  tdsqlite3StrAccumInit(&acc, 0, zBuf, sz, 0);
-  if( p->flags & MEM_Int ){
-    tdsqlite3_str_appendf(&acc, "%lld", p->u.i);
-  }else if( p->flags & MEM_IntReal ){
-    tdsqlite3_str_appendf(&acc, "%!.15g", (double)p->u.i);
-  }else{
-    tdsqlite3_str_appendf(&acc, "%!.15g", p->u.r);
-  }
-  assert( acc.zText==zBuf && acc.mxAlloc<=0 );
-  zBuf[acc.nChar] = 0; /* Fast version of tdsqlite3StrAccumFinish(&acc) */
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Validity checks on pMem.  pMem holds a string.
-**
-** (1) Check that string value of pMem agrees with its integer or real value.
-** (2) Check that the string is correctly zero terminated
-**
-** A single int or real value always converts to the same strings.  But
-** many different strings can be converted into the same int or real.
-** If a table contains a numeric value and an index is based on the
-** corresponding string value, then it is important that the string be
-** derived from the numeric value, not the other way around, to ensure
-** that the index and table are consistent.  See ticket
-** https://www.sqlite.org/src/info/343634942dd54ab (2018-01-31) for
-** an example.
-**
-** This routine looks at pMem to verify that if it has both a numeric
-** representation and a string representation then the string rep has
-** been derived from the numeric and not the other way around.  It returns
-** true if everything is ok and false if there is a problem.
-**
-** This routine is for use inside of assert() statements only.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemValidStrRep(Mem *p){
-  char zBuf[100];
-  char *z;
-  int i, j, incr;
-  if( (p->flags & MEM_Str)==0 ) return 1;
-  if( p->flags & MEM_Term ){
-    /* Insure that the string is properly zero-terminated.  Pay particular
-    ** attention to the case where p->n is odd */
-    if( p->szMalloc>0 && p->z==p->zMalloc ){
-      assert( p->enc==SQLITE_UTF8 || p->szMalloc >= ((p->n+1)&~1)+2 );
-      assert( p->enc!=SQLITE_UTF8 || p->szMalloc >= p->n+1 );
-    }
-    assert( p->z[p->n]==0 );
-    assert( p->enc==SQLITE_UTF8 || p->z[(p->n+1)&~1]==0 );
-    assert( p->enc==SQLITE_UTF8 || p->z[((p->n+1)&~1)+1]==0 );
-  }
-  if( (p->flags & (MEM_Int|MEM_Real|MEM_IntReal))==0 ) return 1;
-  vdbeMemRenderNum(sizeof(zBuf), zBuf, p);
-  z = p->z;
-  i = j = 0;
-  incr = 1;
-  if( p->enc!=SQLITE_UTF8 ){
-    incr = 2;
-    if( p->enc==SQLITE_UTF16BE ) z++;
-  }
-  while( zBuf[j] ){
-    if( zBuf[j++]!=z[i] ) return 0;
-    i += incr;
-  }
-  return 1;
-}
-#endif /* SQLITE_DEBUG */
-
-/*
-** If pMem is an object with a valid string representation, this routine
-** ensures the internal encoding for the string representation is
-** 'desiredEnc', one of SQLITE_UTF8, SQLITE_UTF16LE or SQLITE_UTF16BE.
-**
-** If pMem is not a string object, or the encoding of the string
-** representation is already stored using the requested encoding, then this
-** routine is a no-op.
-**
-** SQLITE_OK is returned if the conversion is successful (or not required).
-** SQLITE_NOMEM may be returned if a malloc() fails during conversion
-** between formats.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeChangeEncoding(Mem *pMem, int desiredEnc){
-#ifndef SQLITE_OMIT_UTF16
-  int rc;
-#endif
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  assert( desiredEnc==SQLITE_UTF8 || desiredEnc==SQLITE_UTF16LE
-           || desiredEnc==SQLITE_UTF16BE );
-  if( !(pMem->flags&MEM_Str) || pMem->enc==desiredEnc ){
-    return SQLITE_OK;
-  }
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-#ifdef SQLITE_OMIT_UTF16
-  return SQLITE_ERROR;
-#else
-
-  /* MemTranslate() may return SQLITE_OK or SQLITE_NOMEM. If NOMEM is returned,
-  ** then the encoding of the value may not have changed.
-  */
-  rc = tdsqlite3VdbeMemTranslate(pMem, (u8)desiredEnc);
-  assert(rc==SQLITE_OK    || rc==SQLITE_NOMEM);
-  assert(rc==SQLITE_OK    || pMem->enc!=desiredEnc);
-  assert(rc==SQLITE_NOMEM || pMem->enc==desiredEnc);
-  return rc;
-#endif
-}
-
-/*
-** Make sure pMem->z points to a writable allocation of at least n bytes.
-**
-** If the bPreserve argument is true, then copy of the content of
-** pMem->z into the new allocation.  pMem must be either a string or
-** blob if bPreserve is true.  If bPreserve is false, any prior content
-** in pMem->z is discarded.
-*/
-SQLITE_PRIVATE SQLITE_NOINLINE int tdsqlite3VdbeMemGrow(Mem *pMem, int n, int bPreserve){
-  assert( tdsqlite3VdbeCheckMemInvariants(pMem) );
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  testcase( pMem->db==0 );
-
-  /* If the bPreserve flag is set to true, then the memory cell must already
-  ** contain a valid string or blob value.  */
-  assert( bPreserve==0 || pMem->flags&(MEM_Blob|MEM_Str) );
-  testcase( bPreserve && pMem->z==0 );
-
-  assert( pMem->szMalloc==0
-       || pMem->szMalloc==tdsqlite3DbMallocSize(pMem->db, pMem->zMalloc) );
-  if( pMem->szMalloc>0 && bPreserve && pMem->z==pMem->zMalloc ){
-    if( pMem->db ){
-      pMem->z = pMem->zMalloc = tdsqlite3DbReallocOrFree(pMem->db, pMem->z, n);
-    }else{
-      pMem->zMalloc = tdsqlite3Realloc(pMem->z, n);
-      if( pMem->zMalloc==0 ) tdsqlite3_free(pMem->z);
-      pMem->z = pMem->zMalloc;
-    }
-    bPreserve = 0;
-  }else{
-    if( pMem->szMalloc>0 ) tdsqlite3DbFreeNN(pMem->db, pMem->zMalloc);
-    pMem->zMalloc = tdsqlite3DbMallocRaw(pMem->db, n);
-  }
-  if( pMem->zMalloc==0 ){
-    tdsqlite3VdbeMemSetNull(pMem);
-    pMem->z = 0;
-    pMem->szMalloc = 0;
-    return SQLITE_NOMEM_BKPT;
-  }else{
-    pMem->szMalloc = tdsqlite3DbMallocSize(pMem->db, pMem->zMalloc);
-  }
-
-  if( bPreserve && pMem->z ){
-    assert( pMem->z!=pMem->zMalloc );
-    memcpy(pMem->zMalloc, pMem->z, pMem->n);
-  }
-  if( (pMem->flags&MEM_Dyn)!=0 ){
-    assert( pMem->xDel!=0 && pMem->xDel!=SQLITE_DYNAMIC );
-    pMem->xDel((void *)(pMem->z));
-  }
-
-  pMem->z = pMem->zMalloc;
-  pMem->flags &= ~(MEM_Dyn|MEM_Ephem|MEM_Static);
-  return SQLITE_OK;
-}
-
-/*
-** Change the pMem->zMalloc allocation to be at least szNew bytes.
-** If pMem->zMalloc already meets or exceeds the requested size, this
-** routine is a no-op.
-**
-** Any prior string or blob content in the pMem object may be discarded.
-** The pMem->xDel destructor is called, if it exists.  Though MEM_Str
-** and MEM_Blob values may be discarded, MEM_Int, MEM_Real, MEM_IntReal,
-** and MEM_Null values are preserved.
-**
-** Return SQLITE_OK on success or an error code (probably SQLITE_NOMEM)
-** if unable to complete the resizing.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemClearAndResize(Mem *pMem, int szNew){
-  assert( CORRUPT_DB || szNew>0 );
-  assert( (pMem->flags & MEM_Dyn)==0 || pMem->szMalloc==0 );
-  if( pMem->szMalloc<szNew ){
-    return tdsqlite3VdbeMemGrow(pMem, szNew, 0);
-  }
-  assert( (pMem->flags & MEM_Dyn)==0 );
-  pMem->z = pMem->zMalloc;
-  pMem->flags &= (MEM_Null|MEM_Int|MEM_Real|MEM_IntReal);
-  return SQLITE_OK;
-}
-
-/*
-** It is already known that pMem contains an unterminated string.
-** Add the zero terminator.
-**
-** Three bytes of zero are added.  In this way, there is guaranteed
-** to be a double-zero byte at an even byte boundary in order to
-** terminate a UTF16 string, even if the initial size of the buffer
-** is an odd number of bytes.
-*/
-static SQLITE_NOINLINE int vdbeMemAddTerminator(Mem *pMem){
-  if( tdsqlite3VdbeMemGrow(pMem, pMem->n+3, 1) ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  pMem->z[pMem->n] = 0;
-  pMem->z[pMem->n+1] = 0;
-  pMem->z[pMem->n+2] = 0;
-  pMem->flags |= MEM_Term;
-  return SQLITE_OK;
-}
-
-/*
-** Change pMem so that its MEM_Str or MEM_Blob value is stored in
-** MEM.zMalloc, where it can be safely written.
-**
-** Return SQLITE_OK on success or SQLITE_NOMEM if malloc fails.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemMakeWriteable(Mem *pMem){
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  if( (pMem->flags & (MEM_Str|MEM_Blob))!=0 ){
-    if( ExpandBlob(pMem) ) return SQLITE_NOMEM;
-    if( pMem->szMalloc==0 || pMem->z!=pMem->zMalloc ){
-      int rc = vdbeMemAddTerminator(pMem);
-      if( rc ) return rc;
-    }
-  }
-  pMem->flags &= ~MEM_Ephem;
-#ifdef SQLITE_DEBUG
-  pMem->pScopyFrom = 0;
-#endif
-
-  return SQLITE_OK;
-}
-
-/*
-** If the given Mem* has a zero-filled tail, turn it into an ordinary
-** blob stored in dynamically allocated space.
-*/
-#ifndef SQLITE_OMIT_INCRBLOB
-SQLITE_PRIVATE int tdsqlite3VdbeMemExpandBlob(Mem *pMem){
-  int nByte;
-  assert( pMem->flags & MEM_Zero );
-  assert( (pMem->flags&MEM_Blob)!=0 || MemNullNochng(pMem) );
-  testcase( tdsqlite3_value_nochange(pMem) );
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-
-  /* Set nByte to the number of bytes required to store the expanded blob. */
-  nByte = pMem->n + pMem->u.nZero;
-  if( nByte<=0 ){
-    if( (pMem->flags & MEM_Blob)==0 ) return SQLITE_OK;
-    nByte = 1;
-  }
-  if( tdsqlite3VdbeMemGrow(pMem, nByte, 1) ){
-    return SQLITE_NOMEM_BKPT;
-  }
-
-  memset(&pMem->z[pMem->n], 0, pMem->u.nZero);
-  pMem->n += pMem->u.nZero;
-  pMem->flags &= ~(MEM_Zero|MEM_Term);
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** Make sure the given Mem is \u0000 terminated.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemNulTerminate(Mem *pMem){
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  testcase( (pMem->flags & (MEM_Term|MEM_Str))==(MEM_Term|MEM_Str) );
-  testcase( (pMem->flags & (MEM_Term|MEM_Str))==0 );
-  if( (pMem->flags & (MEM_Term|MEM_Str))!=MEM_Str ){
-    return SQLITE_OK;   /* Nothing to do */
-  }else{
-    return vdbeMemAddTerminator(pMem);
-  }
-}
-
-/*
-** Add MEM_Str to the set of representations for the given Mem.  This
-** routine is only called if pMem is a number of some kind, not a NULL
-** or a BLOB.
-**
-** Existing representations MEM_Int, MEM_Real, or MEM_IntReal are invalidated
-** if bForce is true but are retained if bForce is false.
-**
-** A MEM_Null value will never be passed to this function. This function is
-** used for converting values to text for returning to the user (i.e. via
-** tdsqlite3_value_text()), or for ensuring that values to be used as btree
-** keys are strings. In the former case a NULL pointer is returned the
-** user and the latter is an internal programming error.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemStringify(Mem *pMem, u8 enc, u8 bForce){
-  const int nByte = 32;
-
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( !(pMem->flags&MEM_Zero) );
-  assert( !(pMem->flags&(MEM_Str|MEM_Blob)) );
-  assert( pMem->flags&(MEM_Int|MEM_Real|MEM_IntReal) );
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
-
-
-  if( tdsqlite3VdbeMemClearAndResize(pMem, nByte) ){
-    pMem->enc = 0;
-    return SQLITE_NOMEM_BKPT;
-  }
-
-  vdbeMemRenderNum(nByte, pMem->z, pMem);
-  assert( pMem->z!=0 );
-  pMem->n = tdsqlite3Strlen30NN(pMem->z);
-  pMem->enc = SQLITE_UTF8;
-  pMem->flags |= MEM_Str|MEM_Term;
-  if( bForce ) pMem->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal);
-  tdsqlite3VdbeChangeEncoding(pMem, enc);
-  return SQLITE_OK;
-}
-
-/*
-** Memory cell pMem contains the context of an aggregate function.
-** This routine calls the finalize method for that function.  The
-** result of the aggregate is stored back into pMem.
-**
-** Return SQLITE_ERROR if the finalizer reports an error.  SQLITE_OK
-** otherwise.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemFinalize(Mem *pMem, FuncDef *pFunc){
-  tdsqlite3_context ctx;
-  Mem t;
-  assert( pFunc!=0 );
-  assert( pFunc->xFinalize!=0 );
-  assert( (pMem->flags & MEM_Null)!=0 || pFunc==pMem->u.pDef );
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  memset(&ctx, 0, sizeof(ctx));
-  memset(&t, 0, sizeof(t));
-  t.flags = MEM_Null;
-  t.db = pMem->db;
-  ctx.pOut = &t;
-  ctx.pMem = pMem;
-  ctx.pFunc = pFunc;
-  pFunc->xFinalize(&ctx); /* IMP: R-24505-23230 */
-  assert( (pMem->flags & MEM_Dyn)==0 );
-  if( pMem->szMalloc>0 ) tdsqlite3DbFreeNN(pMem->db, pMem->zMalloc);
-  memcpy(pMem, &t, sizeof(t));
-  return ctx.isError;
-}
-
-/*
-** Memory cell pAccum contains the context of an aggregate function.
-** This routine calls the xValue method for that function and stores
-** the results in memory cell pMem.
-**
-** SQLITE_ERROR is returned if xValue() reports an error. SQLITE_OK 
-** otherwise.
-*/
-#ifndef SQLITE_OMIT_WINDOWFUNC
-SQLITE_PRIVATE int tdsqlite3VdbeMemAggValue(Mem *pAccum, Mem *pOut, FuncDef *pFunc){
-  tdsqlite3_context ctx;
-  assert( pFunc!=0 );
-  assert( pFunc->xValue!=0 );
-  assert( (pAccum->flags & MEM_Null)!=0 || pFunc==pAccum->u.pDef );
-  assert( pAccum->db==0 || tdsqlite3_mutex_held(pAccum->db->mutex) );
-  memset(&ctx, 0, sizeof(ctx));
-  tdsqlite3VdbeMemSetNull(pOut);
-  ctx.pOut = pOut;
-  ctx.pMem = pAccum;
-  ctx.pFunc = pFunc;
-  pFunc->xValue(&ctx);
-  return ctx.isError;
-}
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-/*
-** If the memory cell contains a value that must be freed by
-** invoking the external callback in Mem.xDel, then this routine
-** will free that value.  It also sets Mem.flags to MEM_Null.
-**
-** This is a helper routine for tdsqlite3VdbeMemSetNull() and
-** for tdsqlite3VdbeMemRelease().  Use those other routines as the
-** entry point for releasing Mem resources.
-*/
-static SQLITE_NOINLINE void vdbeMemClearExternAndSetNull(Mem *p){
-  assert( p->db==0 || tdsqlite3_mutex_held(p->db->mutex) );
-  assert( VdbeMemDynamic(p) );
-  if( p->flags&MEM_Agg ){
-    tdsqlite3VdbeMemFinalize(p, p->u.pDef);
-    assert( (p->flags & MEM_Agg)==0 );
-    testcase( p->flags & MEM_Dyn );
-  }
-  if( p->flags&MEM_Dyn ){
-    assert( p->xDel!=SQLITE_DYNAMIC && p->xDel!=0 );
-    p->xDel((void *)p->z);
-  }
-  p->flags = MEM_Null;
-}
-
-/*
-** Release memory held by the Mem p, both external memory cleared
-** by p->xDel and memory in p->zMalloc.
-**
-** This is a helper routine invoked by tdsqlite3VdbeMemRelease() in
-** the unusual case where there really is memory in p that needs
-** to be freed.
-*/
-static SQLITE_NOINLINE void vdbeMemClear(Mem *p){
-  if( VdbeMemDynamic(p) ){
-    vdbeMemClearExternAndSetNull(p);
-  }
-  if( p->szMalloc ){
-    tdsqlite3DbFreeNN(p->db, p->zMalloc);
-    p->szMalloc = 0;
-  }
-  p->z = 0;
-}
-
-/*
-** Release any memory resources held by the Mem.  Both the memory that is
-** free by Mem.xDel and the Mem.zMalloc allocation are freed.
-**
-** Use this routine prior to clean up prior to abandoning a Mem, or to
-** reset a Mem back to its minimum memory utilization.
-**
-** Use tdsqlite3VdbeMemSetNull() to release just the Mem.xDel space
-** prior to inserting new content into the Mem.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemRelease(Mem *p){
-  assert( tdsqlite3VdbeCheckMemInvariants(p) );
-  if( VdbeMemDynamic(p) || p->szMalloc ){
-    vdbeMemClear(p);
-  }
-}
-
-/*
-** Convert a 64-bit IEEE double into a 64-bit signed integer.
-** If the double is out of range of a 64-bit signed integer then
-** return the closest available 64-bit signed integer.
-*/
-static SQLITE_NOINLINE i64 doubleToInt64(double r){
-#ifdef SQLITE_OMIT_FLOATING_POINT
-  /* When floating-point is omitted, double and int64 are the same thing */
-  return r;
-#else
-  /*
-  ** Many compilers we encounter do not define constants for the
-  ** minimum and maximum 64-bit integers, or they define them
-  ** inconsistently.  And many do not understand the "LL" notation.
-  ** So we define our own static constants here using nothing
-  ** larger than a 32-bit integer constant.
-  */
-  static const i64 maxInt = LARGEST_INT64;
-  static const i64 minInt = SMALLEST_INT64;
-
-  if( r<=(double)minInt ){
-    return minInt;
-  }else if( r>=(double)maxInt ){
-    return maxInt;
-  }else{
-    return (i64)r;
-  }
-#endif
-}
-
-/*
-** Return some kind of integer value which is the best we can do
-** at representing the value that *pMem describes as an integer.
-** If pMem is an integer, then the value is exact.  If pMem is
-** a floating-point then the value returned is the integer part.
-** If pMem is a string or blob, then we make an attempt to convert
-** it into an integer and return that.  If pMem represents an
-** an SQL-NULL value, return 0.
-**
-** If pMem represents a string value, its encoding might be changed.
-*/
-static SQLITE_NOINLINE i64 memIntValue(Mem *pMem){
-  i64 value = 0;
-  tdsqlite3Atoi64(pMem->z, &value, pMem->n, pMem->enc);
-  return value;
-}
-SQLITE_PRIVATE i64 tdsqlite3VdbeIntValue(Mem *pMem){
-  int flags;
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
-  flags = pMem->flags;
-  if( flags & (MEM_Int|MEM_IntReal) ){
-    testcase( flags & MEM_IntReal );
-    return pMem->u.i;
-  }else if( flags & MEM_Real ){
-    return doubleToInt64(pMem->u.r);
-  }else if( (flags & (MEM_Str|MEM_Blob))!=0 && pMem->z!=0 ){
-    return memIntValue(pMem);
-  }else{
-    return 0;
-  }
-}
-
-/*
-** Return the best representation of pMem that we can get into a
-** double.  If pMem is already a double or an integer, return its
-** value.  If it is a string or blob, try to convert it to a double.
-** If it is a NULL, return 0.0.
-*/
-static SQLITE_NOINLINE double memRealValue(Mem *pMem){
-  /* (double)0 In case of SQLITE_OMIT_FLOATING_POINT... */
-  double val = (double)0;
-  tdsqlite3AtoF(pMem->z, &val, pMem->n, pMem->enc);
-  return val;
-}
-SQLITE_PRIVATE double tdsqlite3VdbeRealValue(Mem *pMem){
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
-  if( pMem->flags & MEM_Real ){
-    return pMem->u.r;
-  }else if( pMem->flags & (MEM_Int|MEM_IntReal) ){
-    testcase( pMem->flags & MEM_IntReal );
-    return (double)pMem->u.i;
-  }else if( pMem->flags & (MEM_Str|MEM_Blob) ){
-    return memRealValue(pMem);
-  }else{
-    /* (double)0 In case of SQLITE_OMIT_FLOATING_POINT... */
-    return (double)0;
-  }
-}
-
-/*
-** Return 1 if pMem represents true, and return 0 if pMem represents false.
-** Return the value ifNull if pMem is NULL.  
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeBooleanValue(Mem *pMem, int ifNull){
-  testcase( pMem->flags & MEM_IntReal );
-  if( pMem->flags & (MEM_Int|MEM_IntReal) ) return pMem->u.i!=0;
-  if( pMem->flags & MEM_Null ) return ifNull;
-  return tdsqlite3VdbeRealValue(pMem)!=0.0;
-}
-
-/*
-** The MEM structure is already a MEM_Real.  Try to also make it a
-** MEM_Int if we can.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeIntegerAffinity(Mem *pMem){
-  i64 ix;
-  assert( pMem->flags & MEM_Real );
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
-
-  ix = doubleToInt64(pMem->u.r);
-
-  /* Only mark the value as an integer if
-  **
-  **    (1) the round-trip conversion real->int->real is a no-op, and
-  **    (2) The integer is neither the largest nor the smallest
-  **        possible integer (ticket #3922)
-  **
-  ** The second and third terms in the following conditional enforces
-  ** the second condition under the assumption that addition overflow causes
-  ** values to wrap around.
-  */
-  if( pMem->u.r==ix && ix>SMALLEST_INT64 && ix<LARGEST_INT64 ){
-    pMem->u.i = ix;
-    MemSetTypeFlag(pMem, MEM_Int);
-  }
-}
-
-/*
-** Convert pMem to type integer.  Invalidate any prior representations.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemIntegerify(Mem *pMem){
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
-
-  pMem->u.i = tdsqlite3VdbeIntValue(pMem);
-  MemSetTypeFlag(pMem, MEM_Int);
-  return SQLITE_OK;
-}
-
-/*
-** Convert pMem so that it is of type MEM_Real.
-** Invalidate any prior representations.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemRealify(Mem *pMem){
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
-
-  pMem->u.r = tdsqlite3VdbeRealValue(pMem);
-  MemSetTypeFlag(pMem, MEM_Real);
-  return SQLITE_OK;
-}
-
-/* Compare a floating point value to an integer.  Return true if the two
-** values are the same within the precision of the floating point value.
-**
-** This function assumes that i was obtained by assignment from r1.
-**
-** For some versions of GCC on 32-bit machines, if you do the more obvious
-** comparison of "r1==(double)i" you sometimes get an answer of false even
-** though the r1 and (double)i values are bit-for-bit the same.
-*/
-SQLITE_PRIVATE int tdsqlite3RealSameAsInt(double r1, tdsqlite3_int64 i){
-  double r2 = (double)i;
-  return r1==0.0
-      || (memcmp(&r1, &r2, sizeof(r1))==0
-          && i >= -2251799813685248LL && i < 2251799813685248LL);
-}
-
-/*
-** Convert pMem so that it has type MEM_Real or MEM_Int.
-** Invalidate any prior representations.
-**
-** Every effort is made to force the conversion, even if the input
-** is a string that does not look completely like a number.  Convert
-** as much of the string as we can and ignore the rest.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemNumerify(Mem *pMem){
-  testcase( pMem->flags & MEM_Int );
-  testcase( pMem->flags & MEM_Real );
-  testcase( pMem->flags & MEM_IntReal );
-  testcase( pMem->flags & MEM_Null );
-  if( (pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null))==0 ){
-    int rc;
-    tdsqlite3_int64 ix;
-    assert( (pMem->flags & (MEM_Blob|MEM_Str))!=0 );
-    assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-    rc = tdsqlite3AtoF(pMem->z, &pMem->u.r, pMem->n, pMem->enc);
-    if( ((rc==0 || rc==1) && tdsqlite3Atoi64(pMem->z, &ix, pMem->n, pMem->enc)<=1)
-     || tdsqlite3RealSameAsInt(pMem->u.r, (ix = (i64)pMem->u.r))
-    ){
-      pMem->u.i = ix;
-      MemSetTypeFlag(pMem, MEM_Int);
-    }else{
-      MemSetTypeFlag(pMem, MEM_Real);
-    }
-  }
-  assert( (pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Null))!=0 );
-  pMem->flags &= ~(MEM_Str|MEM_Blob|MEM_Zero);
-  return SQLITE_OK;
-}
-
-/*
-** Cast the datatype of the value in pMem according to the affinity
-** "aff".  Casting is different from applying affinity in that a cast
-** is forced.  In other words, the value is converted into the desired
-** affinity even if that results in loss of data.  This routine is
-** used (for example) to implement the SQL "cast()" operator.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemCast(Mem *pMem, u8 aff, u8 encoding){
-  if( pMem->flags & MEM_Null ) return SQLITE_OK;
-  switch( aff ){
-    case SQLITE_AFF_BLOB: {   /* Really a cast to BLOB */
-      if( (pMem->flags & MEM_Blob)==0 ){
-        tdsqlite3ValueApplyAffinity(pMem, SQLITE_AFF_TEXT, encoding);
-        assert( pMem->flags & MEM_Str || pMem->db->mallocFailed );
-        if( pMem->flags & MEM_Str ) MemSetTypeFlag(pMem, MEM_Blob);
-      }else{
-        pMem->flags &= ~(MEM_TypeMask&~MEM_Blob);
-      }
-      break;
-    }
-    case SQLITE_AFF_NUMERIC: {
-      tdsqlite3VdbeMemNumerify(pMem);
-      break;
-    }
-    case SQLITE_AFF_INTEGER: {
-      tdsqlite3VdbeMemIntegerify(pMem);
-      break;
-    }
-    case SQLITE_AFF_REAL: {
-      tdsqlite3VdbeMemRealify(pMem);
-      break;
-    }
-    default: {
-      assert( aff==SQLITE_AFF_TEXT );
-      assert( MEM_Str==(MEM_Blob>>3) );
-      pMem->flags |= (pMem->flags&MEM_Blob)>>3;
-      tdsqlite3ValueApplyAffinity(pMem, SQLITE_AFF_TEXT, encoding);
-      assert( pMem->flags & MEM_Str || pMem->db->mallocFailed );
-      pMem->flags &= ~(MEM_Int|MEM_Real|MEM_IntReal|MEM_Blob|MEM_Zero);
-      return tdsqlite3VdbeChangeEncoding(pMem, encoding);
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Initialize bulk memory to be a consistent Mem object.
-**
-** The minimum amount of initialization feasible is performed.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemInit(Mem *pMem, tdsqlite3 *db, u16 flags){
-  assert( (flags & ~MEM_TypeMask)==0 );
-  pMem->flags = flags;
-  pMem->db = db;
-  pMem->szMalloc = 0;
-}
-
-
-/*
-** Delete any previous value and set the value stored in *pMem to NULL.
-**
-** This routine calls the Mem.xDel destructor to dispose of values that
-** require the destructor.  But it preserves the Mem.zMalloc memory allocation.
-** To free all resources, use tdsqlite3VdbeMemRelease(), which both calls this
-** routine to invoke the destructor and deallocates Mem.zMalloc.
-**
-** Use this routine to reset the Mem prior to insert a new value.
-**
-** Use tdsqlite3VdbeMemRelease() to complete erase the Mem prior to abandoning it.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetNull(Mem *pMem){
-  if( VdbeMemDynamic(pMem) ){
-    vdbeMemClearExternAndSetNull(pMem);
-  }else{
-    pMem->flags = MEM_Null;
-  }
-}
-SQLITE_PRIVATE void tdsqlite3ValueSetNull(tdsqlite3_value *p){
-  tdsqlite3VdbeMemSetNull((Mem*)p); 
-}
-
-/*
-** Delete any previous value and set the value to be a BLOB of length
-** n containing all zeros.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetZeroBlob(Mem *pMem, int n){
-  tdsqlite3VdbeMemRelease(pMem);
-  pMem->flags = MEM_Blob|MEM_Zero;
-  pMem->n = 0;
-  if( n<0 ) n = 0;
-  pMem->u.nZero = n;
-  pMem->enc = SQLITE_UTF8;
-  pMem->z = 0;
-}
-
-/*
-** The pMem is known to contain content that needs to be destroyed prior
-** to a value change.  So invoke the destructor, then set the value to
-** a 64-bit integer.
-*/
-static SQLITE_NOINLINE void vdbeReleaseAndSetInt64(Mem *pMem, i64 val){
-  tdsqlite3VdbeMemSetNull(pMem);
-  pMem->u.i = val;
-  pMem->flags = MEM_Int;
-}
-
-/*
-** Delete any previous value and set the value stored in *pMem to val,
-** manifest type INTEGER.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetInt64(Mem *pMem, i64 val){
-  if( VdbeMemDynamic(pMem) ){
-    vdbeReleaseAndSetInt64(pMem, val);
-  }else{
-    pMem->u.i = val;
-    pMem->flags = MEM_Int;
-  }
-}
-
-/* A no-op destructor */
-SQLITE_PRIVATE void tdsqlite3NoopDestructor(void *p){ UNUSED_PARAMETER(p); }
-
-/*
-** Set the value stored in *pMem should already be a NULL.
-** Also store a pointer to go with it.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetPointer(
-  Mem *pMem,
-  void *pPtr,
-  const char *zPType,
-  void (*xDestructor)(void*)
-){
-  assert( pMem->flags==MEM_Null );
-  pMem->u.zPType = zPType ? zPType : "";
-  pMem->z = pPtr;
-  pMem->flags = MEM_Null|MEM_Dyn|MEM_Subtype|MEM_Term;
-  pMem->eSubtype = 'p';
-  pMem->xDel = xDestructor ? xDestructor : tdsqlite3NoopDestructor;
-}
-
-#ifndef SQLITE_OMIT_FLOATING_POINT
-/*
-** Delete any previous value and set the value stored in *pMem to val,
-** manifest type REAL.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemSetDouble(Mem *pMem, double val){
-  tdsqlite3VdbeMemSetNull(pMem);
-  if( !tdsqlite3IsNaN(val) ){
-    pMem->u.r = val;
-    pMem->flags = MEM_Real;
-  }
-}
-#endif
-
-#ifdef SQLITE_DEBUG
-/*
-** Return true if the Mem holds a RowSet object.  This routine is intended
-** for use inside of assert() statements.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemIsRowSet(const Mem *pMem){
-  return (pMem->flags&(MEM_Blob|MEM_Dyn))==(MEM_Blob|MEM_Dyn)
-         && pMem->xDel==tdsqlite3RowSetDelete;
-}
-#endif
-
-/*
-** Delete any previous value and set the value of pMem to be an
-** empty boolean index.
-**
-** Return SQLITE_OK on success and SQLITE_NOMEM if a memory allocation
-** error occurs.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemSetRowSet(Mem *pMem){
-  tdsqlite3 *db = pMem->db;
-  RowSet *p;
-  assert( db!=0 );
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  tdsqlite3VdbeMemRelease(pMem);
-  p = tdsqlite3RowSetInit(db);
-  if( p==0 ) return SQLITE_NOMEM;
-  pMem->z = (char*)p;
-  pMem->flags = MEM_Blob|MEM_Dyn;
-  pMem->xDel = tdsqlite3RowSetDelete;
-  return SQLITE_OK;
-}
-
-/*
-** Return true if the Mem object contains a TEXT or BLOB that is
-** too large - whose size exceeds SQLITE_MAX_LENGTH.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemTooBig(Mem *p){
-  assert( p->db!=0 );
-  if( p->flags & (MEM_Str|MEM_Blob) ){
-    int n = p->n;
-    if( p->flags & MEM_Zero ){
-      n += p->u.nZero;
-    }
-    return n>p->db->aLimit[SQLITE_LIMIT_LENGTH];
-  }
-  return 0; 
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** This routine prepares a memory cell for modification by breaking
-** its link to a shallow copy and by marking any current shallow
-** copies of this cell as invalid.
-**
-** This is used for testing and debugging only - to help ensure that shallow
-** copies (created by OP_SCopy) are not misused.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemAboutToChange(Vdbe *pVdbe, Mem *pMem){
-  int i;
-  Mem *pX;
-  for(i=1, pX=pVdbe->aMem+1; i<pVdbe->nMem; i++, pX++){
-    if( pX->pScopyFrom==pMem ){
-      u16 mFlags;
-      if( pVdbe->db->flags & SQLITE_VdbeTrace ){
-        tdsqlite3DebugPrintf("Invalidate R[%d] due to change in R[%d]\n",
-          (int)(pX - pVdbe->aMem), (int)(pMem - pVdbe->aMem));
-      }
-      /* If pX is marked as a shallow copy of pMem, then verify that
-      ** no significant changes have been made to pX since the OP_SCopy.
-      ** A significant change would indicated a missed call to this
-      ** function for pX.  Minor changes, such as adding or removing a
-      ** dual type, are allowed, as long as the underlying value is the
-      ** same. */
-      mFlags = pMem->flags & pX->flags & pX->mScopyFlags;
-      assert( (mFlags&(MEM_Int|MEM_IntReal))==0 || pMem->u.i==pX->u.i );
-      /* assert( (mFlags&MEM_Real)==0 || pMem->u.r==pX->u.r ); */
-      /*                                          ^^           */
-      /*       Cannot reliably compare doubles for equality    */
-      assert( (mFlags&MEM_Str)==0  || (pMem->n==pX->n && pMem->z==pX->z) );
-      assert( (mFlags&MEM_Blob)==0  || tdsqlite3BlobCompare(pMem,pX)==0 );
-      
-      /* pMem is the register that is changing.  But also mark pX as
-      ** undefined so that we can quickly detect the shallow-copy error */
-      pX->flags = MEM_Undefined;
-      pX->pScopyFrom = 0;
-    }
-  }
-  pMem->pScopyFrom = 0;
-}
-#endif /* SQLITE_DEBUG */
-
-/*
-** Make an shallow copy of pFrom into pTo.  Prior contents of
-** pTo are freed.  The pFrom->z field is not duplicated.  If
-** pFrom->z is used, then pTo->z points to the same thing as pFrom->z
-** and flags gets srcType (either MEM_Ephem or MEM_Static).
-*/
-static SQLITE_NOINLINE void vdbeClrCopy(Mem *pTo, const Mem *pFrom, int eType){
-  vdbeMemClearExternAndSetNull(pTo);
-  assert( !VdbeMemDynamic(pTo) );
-  tdsqlite3VdbeMemShallowCopy(pTo, pFrom, eType);
-}
-SQLITE_PRIVATE void tdsqlite3VdbeMemShallowCopy(Mem *pTo, const Mem *pFrom, int srcType){
-  assert( !tdsqlite3VdbeMemIsRowSet(pFrom) );
-  assert( pTo->db==pFrom->db );
-  if( VdbeMemDynamic(pTo) ){ vdbeClrCopy(pTo,pFrom,srcType); return; }
-  memcpy(pTo, pFrom, MEMCELLSIZE);
-  if( (pFrom->flags&MEM_Static)==0 ){
-    pTo->flags &= ~(MEM_Dyn|MEM_Static|MEM_Ephem);
-    assert( srcType==MEM_Ephem || srcType==MEM_Static );
-    pTo->flags |= srcType;
-  }
-}
-
-/*
-** Make a full copy of pFrom into pTo.  Prior contents of pTo are
-** freed before the copy is made.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemCopy(Mem *pTo, const Mem *pFrom){
-  int rc = SQLITE_OK;
-
-  assert( !tdsqlite3VdbeMemIsRowSet(pFrom) );
-  if( VdbeMemDynamic(pTo) ) vdbeMemClearExternAndSetNull(pTo);
-  memcpy(pTo, pFrom, MEMCELLSIZE);
-  pTo->flags &= ~MEM_Dyn;
-  if( pTo->flags&(MEM_Str|MEM_Blob) ){
-    if( 0==(pFrom->flags&MEM_Static) ){
-      pTo->flags |= MEM_Ephem;
-      rc = tdsqlite3VdbeMemMakeWriteable(pTo);
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Transfer the contents of pFrom to pTo. Any existing value in pTo is
-** freed. If pFrom contains ephemeral data, a copy is made.
-**
-** pFrom contains an SQL NULL when this routine returns.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemMove(Mem *pTo, Mem *pFrom){
-  assert( pFrom->db==0 || tdsqlite3_mutex_held(pFrom->db->mutex) );
-  assert( pTo->db==0 || tdsqlite3_mutex_held(pTo->db->mutex) );
-  assert( pFrom->db==0 || pTo->db==0 || pFrom->db==pTo->db );
-
-  tdsqlite3VdbeMemRelease(pTo);
-  memcpy(pTo, pFrom, sizeof(Mem));
-  pFrom->flags = MEM_Null;
-  pFrom->szMalloc = 0;
-}
-
-/*
-** Change the value of a Mem to be a string or a BLOB.
-**
-** The memory management strategy depends on the value of the xDel
-** parameter. If the value passed is SQLITE_TRANSIENT, then the 
-** string is copied into a (possibly existing) buffer managed by the 
-** Mem structure. Otherwise, any existing buffer is freed and the
-** pointer copied.
-**
-** If the string is too large (if it exceeds the SQLITE_LIMIT_LENGTH
-** size limit) then no memory allocation occurs.  If the string can be
-** stored without allocating memory, then it is.  If a memory allocation
-** is required to store the string, then value of pMem is unchanged.  In
-** either case, SQLITE_TOOBIG is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMemSetStr(
-  Mem *pMem,          /* Memory cell to set to string value */
-  const char *z,      /* String pointer */
-  int n,              /* Bytes in string, or negative */
-  u8 enc,             /* Encoding of z.  0 for BLOBs */
-  void (*xDel)(void*) /* Destructor function */
-){
-  int nByte = n;      /* New value for pMem->n */
-  int iLimit;         /* Maximum allowed string or blob size */
-  u16 flags = 0;      /* New value for pMem->flags */
-
-  assert( pMem->db==0 || tdsqlite3_mutex_held(pMem->db->mutex) );
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-
-  /* If z is a NULL pointer, set pMem to contain an SQL NULL. */
-  if( !z ){
-    tdsqlite3VdbeMemSetNull(pMem);
-    return SQLITE_OK;
-  }
-
-  if( pMem->db ){
-    iLimit = pMem->db->aLimit[SQLITE_LIMIT_LENGTH];
-  }else{
-    iLimit = SQLITE_MAX_LENGTH;
-  }
-  flags = (enc==0?MEM_Blob:MEM_Str);
-  if( nByte<0 ){
-    assert( enc!=0 );
-    if( enc==SQLITE_UTF8 ){
-      nByte = 0x7fffffff & (int)strlen(z);
-    }else{
-      for(nByte=0; nByte<=iLimit && (z[nByte] | z[nByte+1]); nByte+=2){}
-    }
-    flags |= MEM_Term;
-  }
-
-  /* The following block sets the new values of Mem.z and Mem.xDel. It
-  ** also sets a flag in local variable "flags" to indicate the memory
-  ** management (one of MEM_Dyn or MEM_Static).
-  */
-  if( xDel==SQLITE_TRANSIENT ){
-    u32 nAlloc = nByte;
-    if( flags&MEM_Term ){
-      nAlloc += (enc==SQLITE_UTF8?1:2);
-    }
-    if( nByte>iLimit ){
-      return tdsqlite3ErrorToParser(pMem->db, SQLITE_TOOBIG);
-    }
-    testcase( nAlloc==0 );
-    testcase( nAlloc==31 );
-    testcase( nAlloc==32 );
-    if( tdsqlite3VdbeMemClearAndResize(pMem, (int)MAX(nAlloc,32)) ){
-      return SQLITE_NOMEM_BKPT;
-    }
-    memcpy(pMem->z, z, nAlloc);
-  }else{
-    tdsqlite3VdbeMemRelease(pMem);
-    pMem->z = (char *)z;
-    if( xDel==SQLITE_DYNAMIC ){
-      pMem->zMalloc = pMem->z;
-      pMem->szMalloc = tdsqlite3DbMallocSize(pMem->db, pMem->zMalloc);
-    }else{
-      pMem->xDel = xDel;
-      flags |= ((xDel==SQLITE_STATIC)?MEM_Static:MEM_Dyn);
-    }
-  }
-
-  pMem->n = nByte;
-  pMem->flags = flags;
-  if( enc ){
-    pMem->enc = enc;
-#ifdef SQLITE_ENABLE_SESSION
-  }else if( pMem->db==0 ){
-    pMem->enc = SQLITE_UTF8;
-#endif
-  }else{
-    assert( pMem->db!=0 );
-    pMem->enc = ENC(pMem->db);
-  }
-
-#ifndef SQLITE_OMIT_UTF16
-  if( enc>SQLITE_UTF8 && tdsqlite3VdbeMemHandleBom(pMem) ){
-    return SQLITE_NOMEM_BKPT;
-  }
-#endif
-
-  if( nByte>iLimit ){
-    return SQLITE_TOOBIG;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Move data out of a btree key or data field and into a Mem structure.
-** The data is payload from the entry that pCur is currently pointing
-** to.  offset and amt determine what portion of the data or key to retrieve.
-** The result is written into the pMem element.
-**
-** The pMem object must have been initialized.  This routine will use
-** pMem->zMalloc to hold the content from the btree, if possible.  New
-** pMem->zMalloc space will be allocated if necessary.  The calling routine
-** is responsible for making sure that the pMem object is eventually
-** destroyed.
-**
-** If this routine fails for any reason (malloc returns NULL or unable
-** to read from the disk) then the pMem is left in an inconsistent state.
-*/
-static SQLITE_NOINLINE int vdbeMemFromBtreeResize(
-  BtCursor *pCur,   /* Cursor pointing at record to retrieve. */
-  u32 offset,       /* Offset from the start of data to return bytes from. */
-  u32 amt,          /* Number of bytes to return. */
-  Mem *pMem         /* OUT: Return data in this Mem structure. */
-){
-  int rc;
-  pMem->flags = MEM_Null;
-  if( tdsqlite3BtreeMaxRecordSize(pCur)<offset+amt ){
-    return SQLITE_CORRUPT_BKPT;
-  }
-  if( SQLITE_OK==(rc = tdsqlite3VdbeMemClearAndResize(pMem, amt+1)) ){
-    rc = tdsqlite3BtreePayload(pCur, offset, amt, pMem->z);
-    if( rc==SQLITE_OK ){
-      pMem->z[amt] = 0;   /* Overrun area used when reading malformed records */
-      pMem->flags = MEM_Blob;
-      pMem->n = (int)amt;
-    }else{
-      tdsqlite3VdbeMemRelease(pMem);
-    }
-  }
-  return rc;
-}
-SQLITE_PRIVATE int tdsqlite3VdbeMemFromBtree(
-  BtCursor *pCur,   /* Cursor pointing at record to retrieve. */
-  u32 offset,       /* Offset from the start of data to return bytes from. */
-  u32 amt,          /* Number of bytes to return. */
-  Mem *pMem         /* OUT: Return data in this Mem structure. */
-){
-  char *zData;        /* Data from the btree layer */
-  u32 available = 0;  /* Number of bytes available on the local btree page */
-  int rc = SQLITE_OK; /* Return code */
-
-  assert( tdsqlite3BtreeCursorIsValid(pCur) );
-  assert( !VdbeMemDynamic(pMem) );
-
-  /* Note: the calls to BtreeKeyFetch() and DataFetch() below assert() 
-  ** that both the BtShared and database handle mutexes are held. */
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem) );
-  zData = (char *)tdsqlite3BtreePayloadFetch(pCur, &available);
-  assert( zData!=0 );
-
-  if( offset+amt<=available ){
-    pMem->z = &zData[offset];
-    pMem->flags = MEM_Blob|MEM_Ephem;
-    pMem->n = (int)amt;
-  }else{
-    rc = vdbeMemFromBtreeResize(pCur, offset, amt, pMem);
-  }
-
-  return rc;
-}
-
-/*
-** The pVal argument is known to be a value other than NULL.
-** Convert it into a string with encoding enc and return a pointer
-** to a zero-terminated version of that string.
-*/
-static SQLITE_NOINLINE const void *valueToText(tdsqlite3_value* pVal, u8 enc){
-  assert( pVal!=0 );
-  assert( pVal->db==0 || tdsqlite3_mutex_held(pVal->db->mutex) );
-  assert( (enc&3)==(enc&~SQLITE_UTF16_ALIGNED) );
-  assert( !tdsqlite3VdbeMemIsRowSet(pVal) );
-  assert( (pVal->flags & (MEM_Null))==0 );
-  if( pVal->flags & (MEM_Blob|MEM_Str) ){
-    if( ExpandBlob(pVal) ) return 0;
-    pVal->flags |= MEM_Str;
-    if( pVal->enc != (enc & ~SQLITE_UTF16_ALIGNED) ){
-      tdsqlite3VdbeChangeEncoding(pVal, enc & ~SQLITE_UTF16_ALIGNED);
-    }
-    if( (enc & SQLITE_UTF16_ALIGNED)!=0 && 1==(1&SQLITE_PTR_TO_INT(pVal->z)) ){
-      assert( (pVal->flags & (MEM_Ephem|MEM_Static))!=0 );
-      if( tdsqlite3VdbeMemMakeWriteable(pVal)!=SQLITE_OK ){
-        return 0;
-      }
-    }
-    tdsqlite3VdbeMemNulTerminate(pVal); /* IMP: R-31275-44060 */
-  }else{
-    tdsqlite3VdbeMemStringify(pVal, enc, 0);
-    assert( 0==(1&SQLITE_PTR_TO_INT(pVal->z)) );
-  }
-  assert(pVal->enc==(enc & ~SQLITE_UTF16_ALIGNED) || pVal->db==0
-              || pVal->db->mallocFailed );
-  if( pVal->enc==(enc & ~SQLITE_UTF16_ALIGNED) ){
-    assert( tdsqlite3VdbeMemValidStrRep(pVal) );
-    return pVal->z;
-  }else{
-    return 0;
-  }
-}
-
-/* This function is only available internally, it is not part of the
-** external API. It works in a similar way to tdsqlite3_value_text(),
-** except the data returned is in the encoding specified by the second
-** parameter, which must be one of SQLITE_UTF16BE, SQLITE_UTF16LE or
-** SQLITE_UTF8.
-**
-** (2006-02-16:)  The enc value can be or-ed with SQLITE_UTF16_ALIGNED.
-** If that is the case, then the result must be aligned on an even byte
-** boundary.
-*/
-SQLITE_PRIVATE const void *tdsqlite3ValueText(tdsqlite3_value* pVal, u8 enc){
-  if( !pVal ) return 0;
-  assert( pVal->db==0 || tdsqlite3_mutex_held(pVal->db->mutex) );
-  assert( (enc&3)==(enc&~SQLITE_UTF16_ALIGNED) );
-  assert( !tdsqlite3VdbeMemIsRowSet(pVal) );
-  if( (pVal->flags&(MEM_Str|MEM_Term))==(MEM_Str|MEM_Term) && pVal->enc==enc ){
-    assert( tdsqlite3VdbeMemValidStrRep(pVal) );
-    return pVal->z;
-  }
-  if( pVal->flags&MEM_Null ){
-    return 0;
-  }
-  return valueToText(pVal, enc);
-}
-
-/*
-** Create a new tdsqlite3_value object.
-*/
-SQLITE_PRIVATE tdsqlite3_value *tdsqlite3ValueNew(tdsqlite3 *db){
-  Mem *p = tdsqlite3DbMallocZero(db, sizeof(*p));
-  if( p ){
-    p->flags = MEM_Null;
-    p->db = db;
-  }
-  return p;
-}
-
-/*
-** Context object passed by tdsqlite3Stat4ProbeSetValue() through to 
-** valueNew(). See comments above valueNew() for details.
-*/
-struct ValueNewStat4Ctx {
-  Parse *pParse;
-  Index *pIdx;
-  UnpackedRecord **ppRec;
-  int iVal;
-};
-
-/*
-** Allocate and return a pointer to a new tdsqlite3_value object. If
-** the second argument to this function is NULL, the object is allocated
-** by calling tdsqlite3ValueNew().
-**
-** Otherwise, if the second argument is non-zero, then this function is 
-** being called indirectly by tdsqlite3Stat4ProbeSetValue(). If it has not
-** already been allocated, allocate the UnpackedRecord structure that 
-** that function will return to its caller here. Then return a pointer to
-** an tdsqlite3_value within the UnpackedRecord.a[] array.
-*/
-static tdsqlite3_value *valueNew(tdsqlite3 *db, struct ValueNewStat4Ctx *p){
-#ifdef SQLITE_ENABLE_STAT4
-  if( p ){
-    UnpackedRecord *pRec = p->ppRec[0];
-
-    if( pRec==0 ){
-      Index *pIdx = p->pIdx;      /* Index being probed */
-      int nByte;                  /* Bytes of space to allocate */
-      int i;                      /* Counter variable */
-      int nCol = pIdx->nColumn;   /* Number of index columns including rowid */
-  
-      nByte = sizeof(Mem) * nCol + ROUND8(sizeof(UnpackedRecord));
-      pRec = (UnpackedRecord*)tdsqlite3DbMallocZero(db, nByte);
-      if( pRec ){
-        pRec->pKeyInfo = tdsqlite3KeyInfoOfIndex(p->pParse, pIdx);
-        if( pRec->pKeyInfo ){
-          assert( pRec->pKeyInfo->nAllField==nCol );
-          assert( pRec->pKeyInfo->enc==ENC(db) );
-          pRec->aMem = (Mem *)((u8*)pRec + ROUND8(sizeof(UnpackedRecord)));
-          for(i=0; i<nCol; i++){
-            pRec->aMem[i].flags = MEM_Null;
-            pRec->aMem[i].db = db;
-          }
-        }else{
-          tdsqlite3DbFreeNN(db, pRec);
-          pRec = 0;
-        }
-      }
-      if( pRec==0 ) return 0;
-      p->ppRec[0] = pRec;
-    }
-  
-    pRec->nField = p->iVal+1;
-    return &pRec->aMem[p->iVal];
-  }
-#else
-  UNUSED_PARAMETER(p);
-#endif /* defined(SQLITE_ENABLE_STAT4) */
-  return tdsqlite3ValueNew(db);
-}
-
-/*
-** The expression object indicated by the second argument is guaranteed
-** to be a scalar SQL function. If
-**
-**   * all function arguments are SQL literals,
-**   * one of the SQLITE_FUNC_CONSTANT or _SLOCHNG function flags is set, and
-**   * the SQLITE_FUNC_NEEDCOLL function flag is not set,
-**
-** then this routine attempts to invoke the SQL function. Assuming no
-** error occurs, output parameter (*ppVal) is set to point to a value 
-** object containing the result before returning SQLITE_OK.
-**
-** Affinity aff is applied to the result of the function before returning.
-** If the result is a text value, the tdsqlite3_value object uses encoding 
-** enc.
-**
-** If the conditions above are not met, this function returns SQLITE_OK
-** and sets (*ppVal) to NULL. Or, if an error occurs, (*ppVal) is set to
-** NULL and an SQLite error code returned.
-*/
-#ifdef SQLITE_ENABLE_STAT4
-static int valueFromFunction(
-  tdsqlite3 *db,                    /* The database connection */
-  Expr *p,                        /* The expression to evaluate */
-  u8 enc,                         /* Encoding to use */
-  u8 aff,                         /* Affinity to use */
-  tdsqlite3_value **ppVal,          /* Write the new value here */
-  struct ValueNewStat4Ctx *pCtx   /* Second argument for valueNew() */
-){
-  tdsqlite3_context ctx;            /* Context object for function invocation */
-  tdsqlite3_value **apVal = 0;      /* Function arguments */
-  int nVal = 0;                   /* Size of apVal[] array */
-  FuncDef *pFunc = 0;             /* Function definition */
-  tdsqlite3_value *pVal = 0;        /* New value */
-  int rc = SQLITE_OK;             /* Return code */
-  ExprList *pList = 0;            /* Function arguments */
-  int i;                          /* Iterator variable */
-
-  assert( pCtx!=0 );
-  assert( (p->flags & EP_TokenOnly)==0 );
-  pList = p->x.pList;
-  if( pList ) nVal = pList->nExpr;
-  pFunc = tdsqlite3FindFunction(db, p->u.zToken, nVal, enc, 0);
-  assert( pFunc );
-  if( (pFunc->funcFlags & (SQLITE_FUNC_CONSTANT|SQLITE_FUNC_SLOCHNG))==0 
-   || (pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL)
-  ){
-    return SQLITE_OK;
-  }
-
-  if( pList ){
-    apVal = (tdsqlite3_value**)tdsqlite3DbMallocZero(db, sizeof(apVal[0]) * nVal);
-    if( apVal==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-      goto value_from_function_out;
-    }
-    for(i=0; i<nVal; i++){
-      rc = tdsqlite3ValueFromExpr(db, pList->a[i].pExpr, enc, aff, &apVal[i]);
-      if( apVal[i]==0 || rc!=SQLITE_OK ) goto value_from_function_out;
-    }
-  }
-
-  pVal = valueNew(db, pCtx);
-  if( pVal==0 ){
-    rc = SQLITE_NOMEM_BKPT;
-    goto value_from_function_out;
-  }
-
-  assert( pCtx->pParse->rc==SQLITE_OK );
-  memset(&ctx, 0, sizeof(ctx));
-  ctx.pOut = pVal;
-  ctx.pFunc = pFunc;
-  pFunc->xSFunc(&ctx, nVal, apVal);
-  if( ctx.isError ){
-    rc = ctx.isError;
-    tdsqlite3ErrorMsg(pCtx->pParse, "%s", tdsqlite3_value_text(pVal));
-  }else{
-    tdsqlite3ValueApplyAffinity(pVal, aff, SQLITE_UTF8);
-    assert( rc==SQLITE_OK );
-    rc = tdsqlite3VdbeChangeEncoding(pVal, enc);
-    if( rc==SQLITE_OK && tdsqlite3VdbeMemTooBig(pVal) ){
-      rc = SQLITE_TOOBIG;
-      pCtx->pParse->nErr++;
-    }
-  }
-  pCtx->pParse->rc = rc;
-
- value_from_function_out:
-  if( rc!=SQLITE_OK ){
-    pVal = 0;
-  }
-  if( apVal ){
-    for(i=0; i<nVal; i++){
-      tdsqlite3ValueFree(apVal[i]);
-    }
-    tdsqlite3DbFreeNN(db, apVal);
-  }
-
-  *ppVal = pVal;
-  return rc;
-}
-#else
-# define valueFromFunction(a,b,c,d,e,f) SQLITE_OK
-#endif /* defined(SQLITE_ENABLE_STAT4) */
-
-/*
-** Extract a value from the supplied expression in the manner described
-** above tdsqlite3ValueFromExpr(). Allocate the tdsqlite3_value object
-** using valueNew().
-**
-** If pCtx is NULL and an error occurs after the tdsqlite3_value object
-** has been allocated, it is freed before returning. Or, if pCtx is not
-** NULL, it is assumed that the caller will free any allocated object
-** in all cases.
-*/
-static int valueFromExpr(
-  tdsqlite3 *db,                    /* The database connection */
-  Expr *pExpr,                    /* The expression to evaluate */
-  u8 enc,                         /* Encoding to use */
-  u8 affinity,                    /* Affinity to use */
-  tdsqlite3_value **ppVal,          /* Write the new value here */
-  struct ValueNewStat4Ctx *pCtx   /* Second argument for valueNew() */
-){
-  int op;
-  char *zVal = 0;
-  tdsqlite3_value *pVal = 0;
-  int negInt = 1;
-  const char *zNeg = "";
-  int rc = SQLITE_OK;
-
-  assert( pExpr!=0 );
-  while( (op = pExpr->op)==TK_UPLUS || op==TK_SPAN ) pExpr = pExpr->pLeft;
-#if defined(SQLITE_ENABLE_STAT4)
-  if( op==TK_REGISTER ) op = pExpr->op2;
-#else
-  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;
-#endif
-
-  /* Compressed expressions only appear when parsing the DEFAULT clause
-  ** on a table column definition, and hence only when pCtx==0.  This
-  ** check ensures that an EP_TokenOnly expression is never passed down
-  ** into valueFromFunction(). */
-  assert( (pExpr->flags & EP_TokenOnly)==0 || pCtx==0 );
-
-  if( op==TK_CAST ){
-    u8 aff = tdsqlite3AffinityType(pExpr->u.zToken,0);
-    rc = valueFromExpr(db, pExpr->pLeft, enc, aff, ppVal, pCtx);
-    testcase( rc!=SQLITE_OK );
-    if( *ppVal ){
-      tdsqlite3VdbeMemCast(*ppVal, aff, SQLITE_UTF8);
-      tdsqlite3ValueApplyAffinity(*ppVal, affinity, SQLITE_UTF8);
-    }
-    return rc;
-  }
-
-  /* Handle negative integers in a single step.  This is needed in the
-  ** case when the value is -9223372036854775808.
-  */
-  if( op==TK_UMINUS
-   && (pExpr->pLeft->op==TK_INTEGER || pExpr->pLeft->op==TK_FLOAT) ){
-    pExpr = pExpr->pLeft;
-    op = pExpr->op;
-    negInt = -1;
-    zNeg = "-";
-  }
-
-  if( op==TK_STRING || op==TK_FLOAT || op==TK_INTEGER ){
-    pVal = valueNew(db, pCtx);
-    if( pVal==0 ) goto no_mem;
-    if( ExprHasProperty(pExpr, EP_IntValue) ){
-      tdsqlite3VdbeMemSetInt64(pVal, (i64)pExpr->u.iValue*negInt);
-    }else{
-      zVal = tdsqlite3MPrintf(db, "%s%s", zNeg, pExpr->u.zToken);
-      if( zVal==0 ) goto no_mem;
-      tdsqlite3ValueSetStr(pVal, -1, zVal, SQLITE_UTF8, SQLITE_DYNAMIC);
-    }
-    if( (op==TK_INTEGER || op==TK_FLOAT ) && affinity==SQLITE_AFF_BLOB ){
-      tdsqlite3ValueApplyAffinity(pVal, SQLITE_AFF_NUMERIC, SQLITE_UTF8);
-    }else{
-      tdsqlite3ValueApplyAffinity(pVal, affinity, SQLITE_UTF8);
-    }
-    assert( (pVal->flags & MEM_IntReal)==0 );
-    if( pVal->flags & (MEM_Int|MEM_IntReal|MEM_Real) ){
-      testcase( pVal->flags & MEM_Int );
-      testcase( pVal->flags & MEM_Real );
-      pVal->flags &= ~MEM_Str;
-    }
-    if( enc!=SQLITE_UTF8 ){
-      rc = tdsqlite3VdbeChangeEncoding(pVal, enc);
-    }
-  }else if( op==TK_UMINUS ) {
-    /* This branch happens for multiple negative signs.  Ex: -(-5) */
-    if( SQLITE_OK==valueFromExpr(db,pExpr->pLeft,enc,affinity,&pVal,pCtx) 
-     && pVal!=0
-    ){
-      tdsqlite3VdbeMemNumerify(pVal);
-      if( pVal->flags & MEM_Real ){
-        pVal->u.r = -pVal->u.r;
-      }else if( pVal->u.i==SMALLEST_INT64 ){
-#ifndef SQLITE_OMIT_FLOATING_POINT
-        pVal->u.r = -(double)SMALLEST_INT64;
-#else
-        pVal->u.r = LARGEST_INT64;
-#endif
-        MemSetTypeFlag(pVal, MEM_Real);
-      }else{
-        pVal->u.i = -pVal->u.i;
-      }
-      tdsqlite3ValueApplyAffinity(pVal, affinity, enc);
-    }
-  }else if( op==TK_NULL ){
-    pVal = valueNew(db, pCtx);
-    if( pVal==0 ) goto no_mem;
-    tdsqlite3VdbeMemSetNull(pVal);
-  }
-#ifndef SQLITE_OMIT_BLOB_LITERAL
-  else if( op==TK_BLOB ){
-    int nVal;
-    assert( pExpr->u.zToken[0]=='x' || pExpr->u.zToken[0]=='X' );
-    assert( pExpr->u.zToken[1]=='\'' );
-    pVal = valueNew(db, pCtx);
-    if( !pVal ) goto no_mem;
-    zVal = &pExpr->u.zToken[2];
-    nVal = tdsqlite3Strlen30(zVal)-1;
-    assert( zVal[nVal]=='\'' );
-    tdsqlite3VdbeMemSetStr(pVal, tdsqlite3HexToBlob(db, zVal, nVal), nVal/2,
-                         0, SQLITE_DYNAMIC);
-  }
-#endif
-#ifdef SQLITE_ENABLE_STAT4
-  else if( op==TK_FUNCTION && pCtx!=0 ){
-    rc = valueFromFunction(db, pExpr, enc, affinity, &pVal, pCtx);
-  }
-#endif
-  else if( op==TK_TRUEFALSE ){
-    pVal = valueNew(db, pCtx);
-    if( pVal ){
-      pVal->flags = MEM_Int;
-      pVal->u.i = pExpr->u.zToken[4]==0;
-    }
-  }
-
-  *ppVal = pVal;
-  return rc;
-
-no_mem:
-#ifdef SQLITE_ENABLE_STAT4
-  if( pCtx==0 || pCtx->pParse->nErr==0 )
-#endif
-    tdsqlite3OomFault(db);
-  tdsqlite3DbFree(db, zVal);
-  assert( *ppVal==0 );
-#ifdef SQLITE_ENABLE_STAT4
-  if( pCtx==0 ) tdsqlite3ValueFree(pVal);
-#else
-  assert( pCtx==0 ); tdsqlite3ValueFree(pVal);
-#endif
-  return SQLITE_NOMEM_BKPT;
-}
-
-/*
-** Create a new tdsqlite3_value object, containing the value of pExpr.
-**
-** This only works for very simple expressions that consist of one constant
-** token (i.e. "5", "5.1", "'a string'"). If the expression can
-** be converted directly into a value, then the value is allocated and
-** a pointer written to *ppVal. The caller is responsible for deallocating
-** the value by passing it to tdsqlite3ValueFree() later on. If the expression
-** cannot be converted to a value, then *ppVal is set to NULL.
-*/
-SQLITE_PRIVATE int tdsqlite3ValueFromExpr(
-  tdsqlite3 *db,              /* The database connection */
-  Expr *pExpr,              /* The expression to evaluate */
-  u8 enc,                   /* Encoding to use */
-  u8 affinity,              /* Affinity to use */
-  tdsqlite3_value **ppVal     /* Write the new value here */
-){
-  return pExpr ? valueFromExpr(db, pExpr, enc, affinity, ppVal, 0) : 0;
-}
-
-#ifdef SQLITE_ENABLE_STAT4
-/*
-** Attempt to extract a value from pExpr and use it to construct *ppVal.
-**
-** If pAlloc is not NULL, then an UnpackedRecord object is created for
-** pAlloc if one does not exist and the new value is added to the
-** UnpackedRecord object.
-**
-** A value is extracted in the following cases:
-**
-**  * (pExpr==0). In this case the value is assumed to be an SQL NULL,
-**
-**  * The expression is a bound variable, and this is a reprepare, or
-**
-**  * The expression is a literal value.
-**
-** On success, *ppVal is made to point to the extracted value.  The caller
-** is responsible for ensuring that the value is eventually freed.
-*/
-static int stat4ValueFromExpr(
-  Parse *pParse,                  /* Parse context */
-  Expr *pExpr,                    /* The expression to extract a value from */
-  u8 affinity,                    /* Affinity to use */
-  struct ValueNewStat4Ctx *pAlloc,/* How to allocate space.  Or NULL */
-  tdsqlite3_value **ppVal           /* OUT: New value object (or NULL) */
-){
-  int rc = SQLITE_OK;
-  tdsqlite3_value *pVal = 0;
-  tdsqlite3 *db = pParse->db;
-
-  /* Skip over any TK_COLLATE nodes */
-  pExpr = tdsqlite3ExprSkipCollate(pExpr);
-
-  assert( pExpr==0 || pExpr->op!=TK_REGISTER || pExpr->op2!=TK_VARIABLE );
-  if( !pExpr ){
-    pVal = valueNew(db, pAlloc);
-    if( pVal ){
-      tdsqlite3VdbeMemSetNull((Mem*)pVal);
-    }
-  }else if( pExpr->op==TK_VARIABLE && (db->flags & SQLITE_EnableQPSG)==0 ){
-    Vdbe *v;
-    int iBindVar = pExpr->iColumn;
-    tdsqlite3VdbeSetVarmask(pParse->pVdbe, iBindVar);
-    if( (v = pParse->pReprepare)!=0 ){
-      pVal = valueNew(db, pAlloc);
-      if( pVal ){
-        rc = tdsqlite3VdbeMemCopy((Mem*)pVal, &v->aVar[iBindVar-1]);
-        tdsqlite3ValueApplyAffinity(pVal, affinity, ENC(db));
-        pVal->db = pParse->db;
-      }
-    }
-  }else{
-    rc = valueFromExpr(db, pExpr, ENC(db), affinity, &pVal, pAlloc);
-  }
-
-  assert( pVal==0 || pVal->db==db );
-  *ppVal = pVal;
-  return rc;
-}
-
-/*
-** This function is used to allocate and populate UnpackedRecord 
-** structures intended to be compared against sample index keys stored 
-** in the sqlite_stat4 table.
-**
-** A single call to this function populates zero or more fields of the
-** record starting with field iVal (fields are numbered from left to
-** right starting with 0). A single field is populated if:
-**
-**  * (pExpr==0). In this case the value is assumed to be an SQL NULL,
-**
-**  * The expression is a bound variable, and this is a reprepare, or
-**
-**  * The tdsqlite3ValueFromExpr() function is able to extract a value 
-**    from the expression (i.e. the expression is a literal value).
-**
-** Or, if pExpr is a TK_VECTOR, one field is populated for each of the
-** vector components that match either of the two latter criteria listed
-** above.
-**
-** Before any value is appended to the record, the affinity of the 
-** corresponding column within index pIdx is applied to it. Before
-** this function returns, output parameter *pnExtract is set to the
-** number of values appended to the record.
-**
-** When this function is called, *ppRec must either point to an object
-** allocated by an earlier call to this function, or must be NULL. If it
-** is NULL and a value can be successfully extracted, a new UnpackedRecord
-** is allocated (and *ppRec set to point to it) before returning.
-**
-** Unless an error is encountered, SQLITE_OK is returned. It is not an
-** error if a value cannot be extracted from pExpr. If an error does
-** occur, an SQLite error code is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3Stat4ProbeSetValue(
-  Parse *pParse,                  /* Parse context */
-  Index *pIdx,                    /* Index being probed */
-  UnpackedRecord **ppRec,         /* IN/OUT: Probe record */
-  Expr *pExpr,                    /* The expression to extract a value from */
-  int nElem,                      /* Maximum number of values to append */
-  int iVal,                       /* Array element to populate */
-  int *pnExtract                  /* OUT: Values appended to the record */
-){
-  int rc = SQLITE_OK;
-  int nExtract = 0;
-
-  if( pExpr==0 || pExpr->op!=TK_SELECT ){
-    int i;
-    struct ValueNewStat4Ctx alloc;
-
-    alloc.pParse = pParse;
-    alloc.pIdx = pIdx;
-    alloc.ppRec = ppRec;
-
-    for(i=0; i<nElem; i++){
-      tdsqlite3_value *pVal = 0;
-      Expr *pElem = (pExpr ? tdsqlite3VectorFieldSubexpr(pExpr, i) : 0);
-      u8 aff = tdsqlite3IndexColumnAffinity(pParse->db, pIdx, iVal+i);
-      alloc.iVal = iVal+i;
-      rc = stat4ValueFromExpr(pParse, pElem, aff, &alloc, &pVal);
-      if( !pVal ) break;
-      nExtract++;
-    }
-  }
-
-  *pnExtract = nExtract;
-  return rc;
-}
-
-/*
-** Attempt to extract a value from expression pExpr using the methods
-** as described for tdsqlite3Stat4ProbeSetValue() above. 
-**
-** If successful, set *ppVal to point to a new value object and return 
-** SQLITE_OK. If no value can be extracted, but no other error occurs
-** (e.g. OOM), return SQLITE_OK and set *ppVal to NULL. Or, if an error
-** does occur, return an SQLite error code. The final value of *ppVal
-** is undefined in this case.
-*/
-SQLITE_PRIVATE int tdsqlite3Stat4ValueFromExpr(
-  Parse *pParse,                  /* Parse context */
-  Expr *pExpr,                    /* The expression to extract a value from */
-  u8 affinity,                    /* Affinity to use */
-  tdsqlite3_value **ppVal           /* OUT: New value object (or NULL) */
-){
-  return stat4ValueFromExpr(pParse, pExpr, affinity, 0, ppVal);
-}
-
-/*
-** Extract the iCol-th column from the nRec-byte record in pRec.  Write
-** the column value into *ppVal.  If *ppVal is initially NULL then a new
-** tdsqlite3_value object is allocated.
-**
-** If *ppVal is initially NULL then the caller is responsible for 
-** ensuring that the value written into *ppVal is eventually freed.
-*/
-SQLITE_PRIVATE int tdsqlite3Stat4Column(
-  tdsqlite3 *db,                    /* Database handle */
-  const void *pRec,               /* Pointer to buffer containing record */
-  int nRec,                       /* Size of buffer pRec in bytes */
-  int iCol,                       /* Column to extract */
-  tdsqlite3_value **ppVal           /* OUT: Extracted value */
-){
-  u32 t = 0;                      /* a column type code */
-  int nHdr;                       /* Size of the header in the record */
-  int iHdr;                       /* Next unread header byte */
-  int iField;                     /* Next unread data byte */
-  int szField = 0;                /* Size of the current data field */
-  int i;                          /* Column index */
-  u8 *a = (u8*)pRec;              /* Typecast byte array */
-  Mem *pMem = *ppVal;             /* Write result into this Mem object */
-
-  assert( iCol>0 );
-  iHdr = getVarint32(a, nHdr);
-  if( nHdr>nRec || iHdr>=nHdr ) return SQLITE_CORRUPT_BKPT;
-  iField = nHdr;
-  for(i=0; i<=iCol; i++){
-    iHdr += getVarint32(&a[iHdr], t);
-    testcase( iHdr==nHdr );
-    testcase( iHdr==nHdr+1 );
-    if( iHdr>nHdr ) return SQLITE_CORRUPT_BKPT;
-    szField = tdsqlite3VdbeSerialTypeLen(t);
-    iField += szField;
-  }
-  testcase( iField==nRec );
-  testcase( iField==nRec+1 );
-  if( iField>nRec ) return SQLITE_CORRUPT_BKPT;
-  if( pMem==0 ){
-    pMem = *ppVal = tdsqlite3ValueNew(db);
-    if( pMem==0 ) return SQLITE_NOMEM_BKPT;
-  }
-  tdsqlite3VdbeSerialGet(&a[iField-szField], t, pMem);
-  pMem->enc = ENC(db);
-  return SQLITE_OK;
-}
-
-/*
-** Unless it is NULL, the argument must be an UnpackedRecord object returned
-** by an earlier call to tdsqlite3Stat4ProbeSetValue(). This call deletes
-** the object.
-*/
-SQLITE_PRIVATE void tdsqlite3Stat4ProbeFree(UnpackedRecord *pRec){
-  if( pRec ){
-    int i;
-    int nCol = pRec->pKeyInfo->nAllField;
-    Mem *aMem = pRec->aMem;
-    tdsqlite3 *db = aMem[0].db;
-    for(i=0; i<nCol; i++){
-      tdsqlite3VdbeMemRelease(&aMem[i]);
-    }
-    tdsqlite3KeyInfoUnref(pRec->pKeyInfo);
-    tdsqlite3DbFreeNN(db, pRec);
-  }
-}
-#endif /* ifdef SQLITE_ENABLE_STAT4 */
-
-/*
-** Change the string value of an tdsqlite3_value object
-*/
-SQLITE_PRIVATE void tdsqlite3ValueSetStr(
-  tdsqlite3_value *v,     /* Value to be set */
-  int n,                /* Length of string z */
-  const void *z,        /* Text of the new string */
-  u8 enc,               /* Encoding to use */
-  void (*xDel)(void*)   /* Destructor for the string */
-){
-  if( v ) tdsqlite3VdbeMemSetStr((Mem *)v, z, n, enc, xDel);
-}
-
-/*
-** Free an tdsqlite3_value object
-*/
-SQLITE_PRIVATE void tdsqlite3ValueFree(tdsqlite3_value *v){
-  if( !v ) return;
-  tdsqlite3VdbeMemRelease((Mem *)v);
-  tdsqlite3DbFreeNN(((Mem*)v)->db, v);
-}
-
-/*
-** The tdsqlite3ValueBytes() routine returns the number of bytes in the
-** tdsqlite3_value object assuming that it uses the encoding "enc".
-** The valueBytes() routine is a helper function.
-*/
-static SQLITE_NOINLINE int valueBytes(tdsqlite3_value *pVal, u8 enc){
-  return valueToText(pVal, enc)!=0 ? pVal->n : 0;
-}
-SQLITE_PRIVATE int tdsqlite3ValueBytes(tdsqlite3_value *pVal, u8 enc){
-  Mem *p = (Mem*)pVal;
-  assert( (p->flags & MEM_Null)==0 || (p->flags & (MEM_Str|MEM_Blob))==0 );
-  if( (p->flags & MEM_Str)!=0 && pVal->enc==enc ){
-    return p->n;
-  }
-  if( (p->flags & MEM_Blob)!=0 ){
-    if( p->flags & MEM_Zero ){
-      return p->n + p->u.nZero;
-    }else{
-      return p->n;
-    }
-  }
-  if( p->flags & MEM_Null ) return 0;
-  return valueBytes(pVal, enc);
-}
-
-/************** End of vdbemem.c *********************************************/
-/************** Begin file vdbeaux.c *****************************************/
-/*
-** 2003 September 6
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code used for creating, destroying, and populating
-** a VDBE (or an "tdsqlite3_stmt" as it is known to the outside world.) 
-*/
-/* #include "sqliteInt.h" */
-/* #include "vdbeInt.h" */
-
-/* Forward references */
-static void freeEphemeralFunction(tdsqlite3 *db, FuncDef *pDef);
-static void vdbeFreeOpArray(tdsqlite3 *, Op *, int);
-
-/*
-** Create a new virtual database engine.
-*/
-SQLITE_PRIVATE Vdbe *tdsqlite3VdbeCreate(Parse *pParse){
-  tdsqlite3 *db = pParse->db;
-  Vdbe *p;
-  p = tdsqlite3DbMallocRawNN(db, sizeof(Vdbe) );
-  if( p==0 ) return 0;
-  memset(&p->aOp, 0, sizeof(Vdbe)-offsetof(Vdbe,aOp));
-  p->db = db;
-  if( db->pVdbe ){
-    db->pVdbe->pPrev = p;
-  }
-  p->pNext = db->pVdbe;
-  p->pPrev = 0;
-  db->pVdbe = p;
-  p->magic = VDBE_MAGIC_INIT;
-  p->pParse = pParse;
-  pParse->pVdbe = p;
-  assert( pParse->aLabel==0 );
-  assert( pParse->nLabel==0 );
-  assert( p->nOpAlloc==0 );
-  assert( pParse->szOpAlloc==0 );
-  tdsqlite3VdbeAddOp2(p, OP_Init, 0, 1);
-  return p;
-}
-
-/*
-** Return the Parse object that owns a Vdbe object.
-*/
-SQLITE_PRIVATE Parse *tdsqlite3VdbeParser(Vdbe *p){
-  return p->pParse;
-}
-
-/*
-** Change the error string stored in Vdbe.zErrMsg
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeError(Vdbe *p, const char *zFormat, ...){
-  va_list ap;
-  tdsqlite3DbFree(p->db, p->zErrMsg);
-  va_start(ap, zFormat);
-  p->zErrMsg = tdsqlite3VMPrintf(p->db, zFormat, ap);
-  va_end(ap);
-}
-
-/*
-** Remember the SQL string for a prepared statement.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSetSql(Vdbe *p, const char *z, int n, u8 prepFlags){
-  if( p==0 ) return;
-  p->prepFlags = prepFlags;
-  if( (prepFlags & SQLITE_PREPARE_SAVESQL)==0 ){
-    p->expmask = 0;
-  }
-  assert( p->zSql==0 );
-  p->zSql = tdsqlite3DbStrNDup(p->db, z, n);
-}
-
-#ifdef SQLITE_ENABLE_NORMALIZE
-/*
-** Add a new element to the Vdbe->pDblStr list.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeAddDblquoteStr(tdsqlite3 *db, Vdbe *p, const char *z){
-  if( p ){
-    int n = tdsqlite3Strlen30(z);
-    DblquoteStr *pStr = tdsqlite3DbMallocRawNN(db,
-                            sizeof(*pStr)+n+1-sizeof(pStr->z));
-    if( pStr ){
-      pStr->pNextStr = p->pDblStr;
-      p->pDblStr = pStr;
-      memcpy(pStr->z, z, n+1);
-    }
-  }
-}
-#endif
-
-#ifdef SQLITE_ENABLE_NORMALIZE
-/*
-** zId of length nId is a double-quoted identifier.  Check to see if
-** that identifier is really used as a string literal.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeUsesDoubleQuotedString(
-  Vdbe *pVdbe,            /* The prepared statement */
-  const char *zId         /* The double-quoted identifier, already dequoted */
-){
-  DblquoteStr *pStr;
-  assert( zId!=0 );
-  if( pVdbe->pDblStr==0 ) return 0;
-  for(pStr=pVdbe->pDblStr; pStr; pStr=pStr->pNextStr){
-    if( strcmp(zId, pStr->z)==0 ) return 1;
-  }
-  return 0;
-}
-#endif
-
-/*
-** Swap all content between two VDBE structures.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){
-  Vdbe tmp, *pTmp;
-  char *zTmp;
-  assert( pA->db==pB->db );
-  tmp = *pA;
-  *pA = *pB;
-  *pB = tmp;
-  pTmp = pA->pNext;
-  pA->pNext = pB->pNext;
-  pB->pNext = pTmp;
-  pTmp = pA->pPrev;
-  pA->pPrev = pB->pPrev;
-  pB->pPrev = pTmp;
-  zTmp = pA->zSql;
-  pA->zSql = pB->zSql;
-  pB->zSql = zTmp;
-#ifdef SQLITE_ENABLE_NORMALIZE
-  zTmp = pA->zNormSql;
-  pA->zNormSql = pB->zNormSql;
-  pB->zNormSql = zTmp;
-#endif
-  pB->expmask = pA->expmask;
-  pB->prepFlags = pA->prepFlags;
-  memcpy(pB->aCounter, pA->aCounter, sizeof(pB->aCounter));
-  pB->aCounter[SQLITE_STMTSTATUS_REPREPARE]++;
-}
-
-/*
-** Resize the Vdbe.aOp array so that it is at least nOp elements larger 
-** than its current size. nOp is guaranteed to be less than or equal
-** to 1024/sizeof(Op).
-**
-** If an out-of-memory error occurs while resizing the array, return
-** SQLITE_NOMEM. In this case Vdbe.aOp and Vdbe.nOpAlloc remain 
-** unchanged (this is so that any opcodes already allocated can be 
-** correctly deallocated along with the rest of the Vdbe).
-*/
-static int growOpArray(Vdbe *v, int nOp){
-  VdbeOp *pNew;
-  Parse *p = v->pParse;
-
-  /* The SQLITE_TEST_REALLOC_STRESS compile-time option is designed to force
-  ** more frequent reallocs and hence provide more opportunities for 
-  ** simulated OOM faults.  SQLITE_TEST_REALLOC_STRESS is generally used
-  ** during testing only.  With SQLITE_TEST_REALLOC_STRESS grow the op array
-  ** by the minimum* amount required until the size reaches 512.  Normal
-  ** operation (without SQLITE_TEST_REALLOC_STRESS) is to double the current
-  ** size of the op array or add 1KB of space, whichever is smaller. */
-#ifdef SQLITE_TEST_REALLOC_STRESS
-  tdsqlite3_int64 nNew = (v->nOpAlloc>=512 ? 2*(tdsqlite3_int64)v->nOpAlloc
-                        : (tdsqlite3_int64)v->nOpAlloc+nOp);
-#else
-  tdsqlite3_int64 nNew = (v->nOpAlloc ? 2*(tdsqlite3_int64)v->nOpAlloc
-                        : (tdsqlite3_int64)(1024/sizeof(Op)));
-  UNUSED_PARAMETER(nOp);
-#endif
-
-  /* Ensure that the size of a VDBE does not grow too large */
-  if( nNew > p->db->aLimit[SQLITE_LIMIT_VDBE_OP] ){
-    tdsqlite3OomFault(p->db);
-    return SQLITE_NOMEM;
-  }
-
-  assert( nOp<=(1024/sizeof(Op)) );
-  assert( nNew>=(v->nOpAlloc+nOp) );
-  pNew = tdsqlite3DbRealloc(p->db, v->aOp, nNew*sizeof(Op));
-  if( pNew ){
-    p->szOpAlloc = tdsqlite3DbMallocSize(p->db, pNew);
-    v->nOpAlloc = p->szOpAlloc/sizeof(Op);
-    v->aOp = pNew;
-  }
-  return (pNew ? SQLITE_OK : SQLITE_NOMEM_BKPT);
-}
-
-#ifdef SQLITE_DEBUG
-/* This routine is just a convenient place to set a breakpoint that will
-** fire after each opcode is inserted and displayed using
-** "PRAGMA vdbe_addoptrace=on".  Parameters "pc" (program counter) and
-** pOp are available to make the breakpoint conditional.
-**
-** Other useful labels for breakpoints include:
-**   test_trace_breakpoint(pc,pOp)
-**   tdsqlite3CorruptError(lineno)
-**   tdsqlite3MisuseError(lineno)
-**   tdsqlite3CantopenError(lineno)
-*/
-static void test_addop_breakpoint(int pc, Op *pOp){
-  static int n = 0;
-  n++;
-}
-#endif
-
-/*
-** Add a new instruction to the list of instructions current in the
-** VDBE.  Return the address of the new instruction.
-**
-** Parameters:
-**
-**    p               Pointer to the VDBE
-**
-**    op              The opcode for this instruction
-**
-**    p1, p2, p3      Operands
-**
-** Use the tdsqlite3VdbeResolveLabel() function to fix an address and
-** the tdsqlite3VdbeChangeP4() function to change the value of the P4
-** operand.
-*/
-static SQLITE_NOINLINE int growOp3(Vdbe *p, int op, int p1, int p2, int p3){
-  assert( p->nOpAlloc<=p->nOp );
-  if( growOpArray(p, 1) ) return 1;
-  assert( p->nOpAlloc>p->nOp );
-  return tdsqlite3VdbeAddOp3(p, op, p1, p2, p3);
-}
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp3(Vdbe *p, int op, int p1, int p2, int p3){
-  int i;
-  VdbeOp *pOp;
-
-  i = p->nOp;
-  assert( p->magic==VDBE_MAGIC_INIT );
-  assert( op>=0 && op<0xff );
-  if( p->nOpAlloc<=i ){
-    return growOp3(p, op, p1, p2, p3);
-  }
-  p->nOp++;
-  pOp = &p->aOp[i];
-  pOp->opcode = (u8)op;
-  pOp->p5 = 0;
-  pOp->p1 = p1;
-  pOp->p2 = p2;
-  pOp->p3 = p3;
-  pOp->p4.p = 0;
-  pOp->p4type = P4_NOTUSED;
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-  pOp->zComment = 0;
-#endif
-#ifdef SQLITE_DEBUG
-  if( p->db->flags & SQLITE_VdbeAddopTrace ){
-    tdsqlite3VdbePrintOp(0, i, &p->aOp[i]);
-    test_addop_breakpoint(i, &p->aOp[i]);
-  }
-#endif
-#ifdef VDBE_PROFILE
-  pOp->cycles = 0;
-  pOp->cnt = 0;
-#endif
-#ifdef SQLITE_VDBE_COVERAGE
-  pOp->iSrcLine = 0;
-#endif
-  return i;
-}
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp0(Vdbe *p, int op){
-  return tdsqlite3VdbeAddOp3(p, op, 0, 0, 0);
-}
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp1(Vdbe *p, int op, int p1){
-  return tdsqlite3VdbeAddOp3(p, op, p1, 0, 0);
-}
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp2(Vdbe *p, int op, int p1, int p2){
-  return tdsqlite3VdbeAddOp3(p, op, p1, p2, 0);
-}
-
-/* Generate code for an unconditional jump to instruction iDest
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeGoto(Vdbe *p, int iDest){
-  return tdsqlite3VdbeAddOp3(p, OP_Goto, 0, iDest, 0);
-}
-
-/* Generate code to cause the string zStr to be loaded into
-** register iDest
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeLoadString(Vdbe *p, int iDest, const char *zStr){
-  return tdsqlite3VdbeAddOp4(p, OP_String8, 0, iDest, 0, zStr, 0);
-}
-
-/*
-** Generate code that initializes multiple registers to string or integer
-** constants.  The registers begin with iDest and increase consecutively.
-** One register is initialized for each characgter in zTypes[].  For each
-** "s" character in zTypes[], the register is a string if the argument is
-** not NULL, or OP_Null if the value is a null pointer.  For each "i" character
-** in zTypes[], the register is initialized to an integer.
-**
-** If the input string does not end with "X" then an OP_ResultRow instruction
-** is generated for the values inserted.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMultiLoad(Vdbe *p, int iDest, const char *zTypes, ...){
-  va_list ap;
-  int i;
-  char c;
-  va_start(ap, zTypes);
-  for(i=0; (c = zTypes[i])!=0; i++){
-    if( c=='s' ){
-      const char *z = va_arg(ap, const char*);
-      tdsqlite3VdbeAddOp4(p, z==0 ? OP_Null : OP_String8, 0, iDest+i, 0, z, 0);
-    }else if( c=='i' ){
-      tdsqlite3VdbeAddOp2(p, OP_Integer, va_arg(ap, int), iDest+i);
-    }else{
-      goto skip_op_resultrow;
-    }
-  }
-  tdsqlite3VdbeAddOp2(p, OP_ResultRow, iDest, i);
-skip_op_resultrow:
-  va_end(ap);
-}
-
-/*
-** Add an opcode that includes the p4 value as a pointer.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp4(
-  Vdbe *p,            /* Add the opcode to this VM */
-  int op,             /* The new opcode */
-  int p1,             /* The P1 operand */
-  int p2,             /* The P2 operand */
-  int p3,             /* The P3 operand */
-  const char *zP4,    /* The P4 operand */
-  int p4type          /* P4 operand type */
-){
-  int addr = tdsqlite3VdbeAddOp3(p, op, p1, p2, p3);
-  tdsqlite3VdbeChangeP4(p, addr, zP4, p4type);
-  return addr;
-}
-
-/*
-** Add an OP_Function or OP_PureFunc opcode.
-**
-** The eCallCtx argument is information (typically taken from Expr.op2)
-** that describes the calling context of the function.  0 means a general
-** function call.  NC_IsCheck means called by a check constraint,
-** NC_IdxExpr means called as part of an index expression.  NC_PartIdx
-** means in the WHERE clause of a partial index.  NC_GenCol means called
-** while computing a generated column value.  0 is the usual case.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeAddFunctionCall(
-  Parse *pParse,        /* Parsing context */
-  int p1,               /* Constant argument mask */
-  int p2,               /* First argument register */
-  int p3,               /* Register into which results are written */
-  int nArg,             /* Number of argument */
-  const FuncDef *pFunc, /* The function to be invoked */
-  int eCallCtx          /* Calling context */
-){
-  Vdbe *v = pParse->pVdbe;
-  int nByte;
-  int addr;
-  tdsqlite3_context *pCtx;
-  assert( v );
-  nByte = sizeof(*pCtx) + (nArg-1)*sizeof(tdsqlite3_value*);
-  pCtx = tdsqlite3DbMallocRawNN(pParse->db, nByte);
-  if( pCtx==0 ){
-    assert( pParse->db->mallocFailed );
-    freeEphemeralFunction(pParse->db, (FuncDef*)pFunc);
-    return 0;
-  }
-  pCtx->pOut = 0;
-  pCtx->pFunc = (FuncDef*)pFunc;
-  pCtx->pVdbe = 0;
-  pCtx->isError = 0;
-  pCtx->argc = nArg;
-  pCtx->iOp = tdsqlite3VdbeCurrentAddr(v);
-  addr = tdsqlite3VdbeAddOp4(v, eCallCtx ? OP_PureFunc : OP_Function,
-                           p1, p2, p3, (char*)pCtx, P4_FUNCCTX);
-  tdsqlite3VdbeChangeP5(v, eCallCtx & NC_SelfRef);
-  return addr;
-}
-
-/*
-** Add an opcode that includes the p4 value with a P4_INT64 or
-** P4_REAL type.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp4Dup8(
-  Vdbe *p,            /* Add the opcode to this VM */
-  int op,             /* The new opcode */
-  int p1,             /* The P1 operand */
-  int p2,             /* The P2 operand */
-  int p3,             /* The P3 operand */
-  const u8 *zP4,      /* The P4 operand */
-  int p4type          /* P4 operand type */
-){
-  char *p4copy = tdsqlite3DbMallocRawNN(tdsqlite3VdbeDb(p), 8);
-  if( p4copy ) memcpy(p4copy, zP4, 8);
-  return tdsqlite3VdbeAddOp4(p, op, p1, p2, p3, p4copy, p4type);
-}
-
-#ifndef SQLITE_OMIT_EXPLAIN
-/*
-** Return the address of the current EXPLAIN QUERY PLAN baseline.
-** 0 means "none".
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeExplainParent(Parse *pParse){
-  VdbeOp *pOp;
-  if( pParse->addrExplain==0 ) return 0;
-  pOp = tdsqlite3VdbeGetOp(pParse->pVdbe, pParse->addrExplain);
-  return pOp->p2;
-}
-
-/*
-** Set a debugger breakpoint on the following routine in order to
-** monitor the EXPLAIN QUERY PLAN code generation.
-*/
-#if defined(SQLITE_DEBUG)
-SQLITE_PRIVATE void tdsqlite3ExplainBreakpoint(const char *z1, const char *z2){
-  (void)z1;
-  (void)z2;
-}
-#endif
-
-/*
-** Add a new OP_ opcode.
-**
-** If the bPush flag is true, then make this opcode the parent for
-** subsequent Explains until tdsqlite3VdbeExplainPop() is called.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeExplain(Parse *pParse, u8 bPush, const char *zFmt, ...){
-#ifndef SQLITE_DEBUG
-  /* Always include the OP_Explain opcodes if SQLITE_DEBUG is defined.
-  ** But omit them (for performance) during production builds */
-  if( pParse->explain==2 )
-#endif
-  {
-    char *zMsg;
-    Vdbe *v;
-    va_list ap;
-    int iThis;
-    va_start(ap, zFmt);
-    zMsg = tdsqlite3VMPrintf(pParse->db, zFmt, ap);
-    va_end(ap);
-    v = pParse->pVdbe;
-    iThis = v->nOp;
-    tdsqlite3VdbeAddOp4(v, OP_Explain, iThis, pParse->addrExplain, 0,
-                      zMsg, P4_DYNAMIC);
-    tdsqlite3ExplainBreakpoint(bPush?"PUSH":"", tdsqlite3VdbeGetOp(v,-1)->p4.z);
-    if( bPush){
-      pParse->addrExplain = iThis;
-    }
-  }
-}
-
-/*
-** Pop the EXPLAIN QUERY PLAN stack one level.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeExplainPop(Parse *pParse){
-  tdsqlite3ExplainBreakpoint("POP", 0);
-  pParse->addrExplain = tdsqlite3VdbeExplainParent(pParse);
-}
-#endif /* SQLITE_OMIT_EXPLAIN */
-
-/*
-** Add an OP_ParseSchema opcode.  This routine is broken out from
-** tdsqlite3VdbeAddOp4() since it needs to also needs to mark all btrees
-** as having been used.
-**
-** The zWhere string must have been obtained from tdsqlite3_malloc().
-** This routine will take ownership of the allocated memory.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeAddParseSchemaOp(Vdbe *p, int iDb, char *zWhere){
-  int j;
-  tdsqlite3VdbeAddOp4(p, OP_ParseSchema, iDb, 0, 0, zWhere, P4_DYNAMIC);
-  for(j=0; j<p->db->nDb; j++) tdsqlite3VdbeUsesBtree(p, j);
-}
-
-/*
-** Add an opcode that includes the p4 value as an integer.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeAddOp4Int(
-  Vdbe *p,            /* Add the opcode to this VM */
-  int op,             /* The new opcode */
-  int p1,             /* The P1 operand */
-  int p2,             /* The P2 operand */
-  int p3,             /* The P3 operand */
-  int p4              /* The P4 operand as an integer */
-){
-  int addr = tdsqlite3VdbeAddOp3(p, op, p1, p2, p3);
-  if( p->db->mallocFailed==0 ){
-    VdbeOp *pOp = &p->aOp[addr];
-    pOp->p4type = P4_INT32;
-    pOp->p4.i = p4;
-  }
-  return addr;
-}
-
-/* Insert the end of a co-routine
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeEndCoroutine(Vdbe *v, int regYield){
-  tdsqlite3VdbeAddOp1(v, OP_EndCoroutine, regYield);
-
-  /* Clear the temporary register cache, thereby ensuring that each
-  ** co-routine has its own independent set of registers, because co-routines
-  ** might expect their registers to be preserved across an OP_Yield, and
-  ** that could cause problems if two or more co-routines are using the same
-  ** temporary register.
-  */
-  v->pParse->nTempReg = 0;
-  v->pParse->nRangeReg = 0;
-}
-
-/*
-** Create a new symbolic label for an instruction that has yet to be
-** coded.  The symbolic label is really just a negative number.  The
-** label can be used as the P2 value of an operation.  Later, when
-** the label is resolved to a specific address, the VDBE will scan
-** through its operation list and change all values of P2 which match
-** the label into the resolved address.
-**
-** The VDBE knows that a P2 value is a label because labels are
-** always negative and P2 values are suppose to be non-negative.
-** Hence, a negative P2 value is a label that has yet to be resolved.
-** (Later:) This is only true for opcodes that have the OPFLG_JUMP
-** property.
-**
-** Variable usage notes:
-**
-**     Parse.aLabel[x]     Stores the address that the x-th label resolves
-**                         into.  For testing (SQLITE_DEBUG), unresolved
-**                         labels stores -1, but that is not required.
-**     Parse.nLabelAlloc   Number of slots allocated to Parse.aLabel[]
-**     Parse.nLabel        The *negative* of the number of labels that have
-**                         been issued.  The negative is stored because
-**                         that gives a performance improvement over storing
-**                         the equivalent positive value.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeMakeLabel(Parse *pParse){
-  return --pParse->nLabel;
-}
-
-/*
-** Resolve label "x" to be the address of the next instruction to
-** be inserted.  The parameter "x" must have been obtained from
-** a prior call to tdsqlite3VdbeMakeLabel().
-*/
-static SQLITE_NOINLINE void resizeResolveLabel(Parse *p, Vdbe *v, int j){
-  int nNewSize = 10 - p->nLabel;
-  p->aLabel = tdsqlite3DbReallocOrFree(p->db, p->aLabel,
-                     nNewSize*sizeof(p->aLabel[0]));
-  if( p->aLabel==0 ){
-    p->nLabelAlloc = 0;
-  }else{
-#ifdef SQLITE_DEBUG
-    int i;
-    for(i=p->nLabelAlloc; i<nNewSize; i++) p->aLabel[i] = -1;
-#endif
-    p->nLabelAlloc = nNewSize;
-    p->aLabel[j] = v->nOp;
-  }
-}
-SQLITE_PRIVATE void tdsqlite3VdbeResolveLabel(Vdbe *v, int x){
-  Parse *p = v->pParse;
-  int j = ADDR(x);
-  assert( v->magic==VDBE_MAGIC_INIT );
-  assert( j<-p->nLabel );
-  assert( j>=0 );
-#ifdef SQLITE_DEBUG
-  if( p->db->flags & SQLITE_VdbeAddopTrace ){
-    printf("RESOLVE LABEL %d to %d\n", x, v->nOp);
-  }
-#endif
-  if( p->nLabelAlloc + p->nLabel < 0 ){
-    resizeResolveLabel(p,v,j);
-  }else{
-    assert( p->aLabel[j]==(-1) ); /* Labels may only be resolved once */
-    p->aLabel[j] = v->nOp;
-  }
-}
-
-/*
-** Mark the VDBE as one that can only be run one time.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeRunOnlyOnce(Vdbe *p){
-  p->runOnlyOnce = 1;
-}
-
-/*
-** Mark the VDBE as one that can only be run multiple times.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeReusable(Vdbe *p){
-  p->runOnlyOnce = 0;
-}
-
-#ifdef SQLITE_DEBUG /* tdsqlite3AssertMayAbort() logic */
-
-/*
-** The following type and function are used to iterate through all opcodes
-** in a Vdbe main program and each of the sub-programs (triggers) it may 
-** invoke directly or indirectly. It should be used as follows:
-**
-**   Op *pOp;
-**   VdbeOpIter sIter;
-**
-**   memset(&sIter, 0, sizeof(sIter));
-**   sIter.v = v;                            // v is of type Vdbe* 
-**   while( (pOp = opIterNext(&sIter)) ){
-**     // Do something with pOp
-**   }
-**   tdsqlite3DbFree(v->db, sIter.apSub);
-** 
-*/
-typedef struct VdbeOpIter VdbeOpIter;
-struct VdbeOpIter {
-  Vdbe *v;                   /* Vdbe to iterate through the opcodes of */
-  SubProgram **apSub;        /* Array of subprograms */
-  int nSub;                  /* Number of entries in apSub */
-  int iAddr;                 /* Address of next instruction to return */
-  int iSub;                  /* 0 = main program, 1 = first sub-program etc. */
-};
-static Op *opIterNext(VdbeOpIter *p){
-  Vdbe *v = p->v;
-  Op *pRet = 0;
-  Op *aOp;
-  int nOp;
-
-  if( p->iSub<=p->nSub ){
-
-    if( p->iSub==0 ){
-      aOp = v->aOp;
-      nOp = v->nOp;
-    }else{
-      aOp = p->apSub[p->iSub-1]->aOp;
-      nOp = p->apSub[p->iSub-1]->nOp;
-    }
-    assert( p->iAddr<nOp );
-
-    pRet = &aOp[p->iAddr];
-    p->iAddr++;
-    if( p->iAddr==nOp ){
-      p->iSub++;
-      p->iAddr = 0;
-    }
-  
-    if( pRet->p4type==P4_SUBPROGRAM ){
-      int nByte = (p->nSub+1)*sizeof(SubProgram*);
-      int j;
-      for(j=0; j<p->nSub; j++){
-        if( p->apSub[j]==pRet->p4.pProgram ) break;
-      }
-      if( j==p->nSub ){
-        p->apSub = tdsqlite3DbReallocOrFree(v->db, p->apSub, nByte);
-        if( !p->apSub ){
-          pRet = 0;
-        }else{
-          p->apSub[p->nSub++] = pRet->p4.pProgram;
-        }
-      }
-    }
-  }
-
-  return pRet;
-}
-
-/*
-** Check if the program stored in the VM associated with pParse may
-** throw an ABORT exception (causing the statement, but not entire transaction
-** to be rolled back). This condition is true if the main program or any
-** sub-programs contains any of the following:
-**
-**   *  OP_Halt with P1=SQLITE_CONSTRAINT and P2=OE_Abort.
-**   *  OP_HaltIfNull with P1=SQLITE_CONSTRAINT and P2=OE_Abort.
-**   *  OP_Destroy
-**   *  OP_VUpdate
-**   *  OP_VCreate
-**   *  OP_VRename
-**   *  OP_FkCounter with P2==0 (immediate foreign key constraint)
-**   *  OP_CreateBtree/BTREE_INTKEY and OP_InitCoroutine 
-**      (for CREATE TABLE AS SELECT ...)
-**
-** Then check that the value of Parse.mayAbort is true if an
-** ABORT may be thrown, or false otherwise. Return true if it does
-** match, or false otherwise. This function is intended to be used as
-** part of an assert statement in the compiler. Similar to:
-**
-**   assert( tdsqlite3VdbeAssertMayAbort(pParse->pVdbe, pParse->mayAbort) );
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeAssertMayAbort(Vdbe *v, int mayAbort){
-  int hasAbort = 0;
-  int hasFkCounter = 0;
-  int hasCreateTable = 0;
-  int hasCreateIndex = 0;
-  int hasInitCoroutine = 0;
-  Op *pOp;
-  VdbeOpIter sIter;
-  memset(&sIter, 0, sizeof(sIter));
-  sIter.v = v;
-
-  while( (pOp = opIterNext(&sIter))!=0 ){
-    int opcode = pOp->opcode;
-    if( opcode==OP_Destroy || opcode==OP_VUpdate || opcode==OP_VRename 
-     || opcode==OP_VDestroy
-     || opcode==OP_VCreate
-     || (opcode==OP_ParseSchema && pOp->p4.z==0)
-     || ((opcode==OP_Halt || opcode==OP_HaltIfNull) 
-      && ((pOp->p1)!=SQLITE_OK && pOp->p2==OE_Abort))
-    ){
-      hasAbort = 1;
-      break;
-    }
-    if( opcode==OP_CreateBtree && pOp->p3==BTREE_INTKEY ) hasCreateTable = 1;
-    if( mayAbort ){
-      /* hasCreateIndex may also be set for some DELETE statements that use
-      ** OP_Clear. So this routine may end up returning true in the case 
-      ** where a "DELETE FROM tbl" has a statement-journal but does not
-      ** require one. This is not so bad - it is an inefficiency, not a bug. */
-      if( opcode==OP_CreateBtree && pOp->p3==BTREE_BLOBKEY ) hasCreateIndex = 1;
-      if( opcode==OP_Clear ) hasCreateIndex = 1;
-    }
-    if( opcode==OP_InitCoroutine ) hasInitCoroutine = 1;
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-    if( opcode==OP_FkCounter && pOp->p1==0 && pOp->p2==1 ){
-      hasFkCounter = 1;
-    }
-#endif
-  }
-  tdsqlite3DbFree(v->db, sIter.apSub);
-
-  /* Return true if hasAbort==mayAbort. Or if a malloc failure occurred.
-  ** If malloc failed, then the while() loop above may not have iterated
-  ** through all opcodes and hasAbort may be set incorrectly. Return
-  ** true for this case to prevent the assert() in the callers frame
-  ** from failing.  */
-  return ( v->db->mallocFailed || hasAbort==mayAbort || hasFkCounter
-        || (hasCreateTable && hasInitCoroutine) || hasCreateIndex
-  );
-}
-#endif /* SQLITE_DEBUG - the tdsqlite3AssertMayAbort() function */
-
-#ifdef SQLITE_DEBUG
-/*
-** Increment the nWrite counter in the VDBE if the cursor is not an
-** ephemeral cursor, or if the cursor argument is NULL.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeIncrWriteCounter(Vdbe *p, VdbeCursor *pC){
-  if( pC==0
-   || (pC->eCurType!=CURTYPE_SORTER
-       && pC->eCurType!=CURTYPE_PSEUDO
-       && !pC->isEphemeral)
-  ){
-    p->nWrite++;
-  }
-}
-#endif
-
-#ifdef SQLITE_DEBUG
-/*
-** Assert if an Abort at this point in time might result in a corrupt
-** database.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeAssertAbortable(Vdbe *p){
-  assert( p->nWrite==0 || p->usesStmtJournal );
-}
-#endif
-
-/*
-** This routine is called after all opcodes have been inserted.  It loops
-** through all the opcodes and fixes up some details.
-**
-** (1) For each jump instruction with a negative P2 value (a label)
-**     resolve the P2 value to an actual address.
-**
-** (2) Compute the maximum number of arguments used by any SQL function
-**     and store that value in *pMaxFuncArgs.
-**
-** (3) Update the Vdbe.readOnly and Vdbe.bIsReader flags to accurately
-**     indicate what the prepared statement actually does.
-**
-** (4) Initialize the p4.xAdvance pointer on opcodes that use it.
-**
-** (5) Reclaim the memory allocated for storing labels.
-**
-** This routine will only function correctly if the mkopcodeh.tcl generator
-** script numbers the opcodes correctly.  Changes to this routine must be
-** coordinated with changes to mkopcodeh.tcl.
-*/
-static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){
-  int nMaxArgs = *pMaxFuncArgs;
-  Op *pOp;
-  Parse *pParse = p->pParse;
-  int *aLabel = pParse->aLabel;
-  p->readOnly = 1;
-  p->bIsReader = 0;
-  pOp = &p->aOp[p->nOp-1];
-  while(1){
-
-    /* Only JUMP opcodes and the short list of special opcodes in the switch
-    ** below need to be considered.  The mkopcodeh.tcl generator script groups
-    ** all these opcodes together near the front of the opcode list.  Skip
-    ** any opcode that does not need processing by virtual of the fact that
-    ** it is larger than SQLITE_MX_JUMP_OPCODE, as a performance optimization.
-    */
-    if( pOp->opcode<=SQLITE_MX_JUMP_OPCODE ){
-      /* NOTE: Be sure to update mkopcodeh.tcl when adding or removing
-      ** cases from this switch! */
-      switch( pOp->opcode ){
-        case OP_Transaction: {
-          if( pOp->p2!=0 ) p->readOnly = 0;
-          /* fall thru */
-        }
-        case OP_AutoCommit:
-        case OP_Savepoint: {
-          p->bIsReader = 1;
-          break;
-        }
-#ifndef SQLITE_OMIT_WAL
-        case OP_Checkpoint:
-#endif
-        case OP_Vacuum:
-        case OP_JournalMode: {
-          p->readOnly = 0;
-          p->bIsReader = 1;
-          break;
-        }
-        case OP_Next:
-        case OP_SorterNext: {
-          pOp->p4.xAdvance = tdsqlite3BtreeNext;
-          pOp->p4type = P4_ADVANCE;
-          /* The code generator never codes any of these opcodes as a jump
-          ** to a label.  They are always coded as a jump backwards to a 
-          ** known address */
-          assert( pOp->p2>=0 );
-          break;
-        }
-        case OP_Prev: {
-          pOp->p4.xAdvance = tdsqlite3BtreePrevious;
-          pOp->p4type = P4_ADVANCE;
-          /* The code generator never codes any of these opcodes as a jump
-          ** to a label.  They are always coded as a jump backwards to a 
-          ** known address */
-          assert( pOp->p2>=0 );
-          break;
-        }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-        case OP_VUpdate: {
-          if( pOp->p2>nMaxArgs ) nMaxArgs = pOp->p2;
-          break;
-        }
-        case OP_VFilter: {
-          int n;
-          assert( (pOp - p->aOp) >= 3 );
-          assert( pOp[-1].opcode==OP_Integer );
-          n = pOp[-1].p1;
-          if( n>nMaxArgs ) nMaxArgs = n;
-          /* Fall through into the default case */
-        }
-#endif
-        default: {
-          if( pOp->p2<0 ){
-            /* The mkopcodeh.tcl script has so arranged things that the only
-            ** non-jump opcodes less than SQLITE_MX_JUMP_CODE are guaranteed to
-            ** have non-negative values for P2. */
-            assert( (tdsqlite3OpcodeProperty[pOp->opcode] & OPFLG_JUMP)!=0 );
-            assert( ADDR(pOp->p2)<-pParse->nLabel );
-            pOp->p2 = aLabel[ADDR(pOp->p2)];
-          }
-          break;
-        }
-      }
-      /* The mkopcodeh.tcl script has so arranged things that the only
-      ** non-jump opcodes less than SQLITE_MX_JUMP_CODE are guaranteed to
-      ** have non-negative values for P2. */
-      assert( (tdsqlite3OpcodeProperty[pOp->opcode]&OPFLG_JUMP)==0 || pOp->p2>=0);
-    }
-    if( pOp==p->aOp ) break;
-    pOp--;
-  }
-  tdsqlite3DbFree(p->db, pParse->aLabel);
-  pParse->aLabel = 0;
-  pParse->nLabel = 0;
-  *pMaxFuncArgs = nMaxArgs;
-  assert( p->bIsReader!=0 || DbMaskAllZero(p->btreeMask) );
-}
-
-/*
-** Return the address of the next instruction to be inserted.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeCurrentAddr(Vdbe *p){
-  assert( p->magic==VDBE_MAGIC_INIT );
-  return p->nOp;
-}
-
-/*
-** Verify that at least N opcode slots are available in p without
-** having to malloc for more space (except when compiled using
-** SQLITE_TEST_REALLOC_STRESS).  This interface is used during testing
-** to verify that certain calls to tdsqlite3VdbeAddOpList() can never
-** fail due to a OOM fault and hence that the return value from
-** tdsqlite3VdbeAddOpList() will always be non-NULL.
-*/
-#if defined(SQLITE_DEBUG) && !defined(SQLITE_TEST_REALLOC_STRESS)
-SQLITE_PRIVATE void tdsqlite3VdbeVerifyNoMallocRequired(Vdbe *p, int N){
-  assert( p->nOp + N <= p->nOpAlloc );
-}
-#endif
-
-/*
-** Verify that the VM passed as the only argument does not contain
-** an OP_ResultRow opcode. Fail an assert() if it does. This is used
-** by code in pragma.c to ensure that the implementation of certain
-** pragmas comports with the flags specified in the mkpragmatab.tcl
-** script.
-*/
-#if defined(SQLITE_DEBUG) && !defined(SQLITE_TEST_REALLOC_STRESS)
-SQLITE_PRIVATE void tdsqlite3VdbeVerifyNoResultRow(Vdbe *p){
-  int i;
-  for(i=0; i<p->nOp; i++){
-    assert( p->aOp[i].opcode!=OP_ResultRow );
-  }
-}
-#endif
-
-/*
-** Generate code (a single OP_Abortable opcode) that will
-** verify that the VDBE program can safely call Abort in the current
-** context.
-*/
-#if defined(SQLITE_DEBUG)
-SQLITE_PRIVATE void tdsqlite3VdbeVerifyAbortable(Vdbe *p, int onError){
-  if( onError==OE_Abort ) tdsqlite3VdbeAddOp0(p, OP_Abortable);
-}
-#endif
-
-/*
-** This function returns a pointer to the array of opcodes associated with
-** the Vdbe passed as the first argument. It is the callers responsibility
-** to arrange for the returned array to be eventually freed using the 
-** vdbeFreeOpArray() function.
-**
-** Before returning, *pnOp is set to the number of entries in the returned
-** array. Also, *pnMaxArg is set to the larger of its current value and 
-** the number of entries in the Vdbe.apArg[] array required to execute the 
-** returned program.
-*/
-SQLITE_PRIVATE VdbeOp *tdsqlite3VdbeTakeOpArray(Vdbe *p, int *pnOp, int *pnMaxArg){
-  VdbeOp *aOp = p->aOp;
-  assert( aOp && !p->db->mallocFailed );
-
-  /* Check that tdsqlite3VdbeUsesBtree() was not called on this VM */
-  assert( DbMaskAllZero(p->btreeMask) );
-
-  resolveP2Values(p, pnMaxArg);
-  *pnOp = p->nOp;
-  p->aOp = 0;
-  return aOp;
-}
-
-/*
-** Add a whole list of operations to the operation stack.  Return a
-** pointer to the first operation inserted.
-**
-** Non-zero P2 arguments to jump instructions are automatically adjusted
-** so that the jump target is relative to the first operation inserted.
-*/
-SQLITE_PRIVATE VdbeOp *tdsqlite3VdbeAddOpList(
-  Vdbe *p,                     /* Add opcodes to the prepared statement */
-  int nOp,                     /* Number of opcodes to add */
-  VdbeOpList const *aOp,       /* The opcodes to be added */
-  int iLineno                  /* Source-file line number of first opcode */
-){
-  int i;
-  VdbeOp *pOut, *pFirst;
-  assert( nOp>0 );
-  assert( p->magic==VDBE_MAGIC_INIT );
-  if( p->nOp + nOp > p->nOpAlloc && growOpArray(p, nOp) ){
-    return 0;
-  }
-  pFirst = pOut = &p->aOp[p->nOp];
-  for(i=0; i<nOp; i++, aOp++, pOut++){
-    pOut->opcode = aOp->opcode;
-    pOut->p1 = aOp->p1;
-    pOut->p2 = aOp->p2;
-    assert( aOp->p2>=0 );
-    if( (tdsqlite3OpcodeProperty[aOp->opcode] & OPFLG_JUMP)!=0 && aOp->p2>0 ){
-      pOut->p2 += p->nOp;
-    }
-    pOut->p3 = aOp->p3;
-    pOut->p4type = P4_NOTUSED;
-    pOut->p4.p = 0;
-    pOut->p5 = 0;
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-    pOut->zComment = 0;
-#endif
-#ifdef SQLITE_VDBE_COVERAGE
-    pOut->iSrcLine = iLineno+i;
-#else
-    (void)iLineno;
-#endif
-#ifdef SQLITE_DEBUG
-    if( p->db->flags & SQLITE_VdbeAddopTrace ){
-      tdsqlite3VdbePrintOp(0, i+p->nOp, &p->aOp[i+p->nOp]);
-    }
-#endif
-  }
-  p->nOp += nOp;
-  return pFirst;
-}
-
-#if defined(SQLITE_ENABLE_STMT_SCANSTATUS)
-/*
-** Add an entry to the array of counters managed by tdsqlite3_stmt_scanstatus().
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeScanStatus(
-  Vdbe *p,                        /* VM to add scanstatus() to */
-  int addrExplain,                /* Address of OP_Explain (or 0) */
-  int addrLoop,                   /* Address of loop counter */ 
-  int addrVisit,                  /* Address of rows visited counter */
-  LogEst nEst,                    /* Estimated number of output rows */
-  const char *zName               /* Name of table or index being scanned */
-){
-  tdsqlite3_int64 nByte = (p->nScan+1) * sizeof(ScanStatus);
-  ScanStatus *aNew;
-  aNew = (ScanStatus*)tdsqlite3DbRealloc(p->db, p->aScan, nByte);
-  if( aNew ){
-    ScanStatus *pNew = &aNew[p->nScan++];
-    pNew->addrExplain = addrExplain;
-    pNew->addrLoop = addrLoop;
-    pNew->addrVisit = addrVisit;
-    pNew->nEst = nEst;
-    pNew->zName = tdsqlite3DbStrDup(p->db, zName);
-    p->aScan = aNew;
-  }
-}
-#endif
-
-
-/*
-** Change the value of the opcode, or P1, P2, P3, or P5 operands
-** for a specific instruction.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeChangeOpcode(Vdbe *p, int addr, u8 iNewOpcode){
-  tdsqlite3VdbeGetOp(p,addr)->opcode = iNewOpcode;
-}
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP1(Vdbe *p, int addr, int val){
-  tdsqlite3VdbeGetOp(p,addr)->p1 = val;
-}
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP2(Vdbe *p, int addr, int val){
-  tdsqlite3VdbeGetOp(p,addr)->p2 = val;
-}
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP3(Vdbe *p, int addr, int val){
-  tdsqlite3VdbeGetOp(p,addr)->p3 = val;
-}
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP5(Vdbe *p, u16 p5){
-  assert( p->nOp>0 || p->db->mallocFailed );
-  if( p->nOp>0 ) p->aOp[p->nOp-1].p5 = p5;
-}
-
-/*
-** Change the P2 operand of instruction addr so that it points to
-** the address of the next instruction to be coded.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeJumpHere(Vdbe *p, int addr){
-  tdsqlite3VdbeChangeP2(p, addr, p->nOp);
-}
-
-
-/*
-** If the input FuncDef structure is ephemeral, then free it.  If
-** the FuncDef is not ephermal, then do nothing.
-*/
-static void freeEphemeralFunction(tdsqlite3 *db, FuncDef *pDef){
-  if( (pDef->funcFlags & SQLITE_FUNC_EPHEM)!=0 ){
-    tdsqlite3DbFreeNN(db, pDef);
-  }
-}
-
-/*
-** Delete a P4 value if necessary.
-*/
-static SQLITE_NOINLINE void freeP4Mem(tdsqlite3 *db, Mem *p){
-  if( p->szMalloc ) tdsqlite3DbFree(db, p->zMalloc);
-  tdsqlite3DbFreeNN(db, p);
-}
-static SQLITE_NOINLINE void freeP4FuncCtx(tdsqlite3 *db, tdsqlite3_context *p){
-  freeEphemeralFunction(db, p->pFunc);
-  tdsqlite3DbFreeNN(db, p);
-}
-static void freeP4(tdsqlite3 *db, int p4type, void *p4){
-  assert( db );
-  switch( p4type ){
-    case P4_FUNCCTX: {
-      freeP4FuncCtx(db, (tdsqlite3_context*)p4);
-      break;
-    }
-    case P4_REAL:
-    case P4_INT64:
-    case P4_DYNAMIC:
-    case P4_DYNBLOB:
-    case P4_INTARRAY: {
-      tdsqlite3DbFree(db, p4);
-      break;
-    }
-    case P4_KEYINFO: {
-      if( db->pnBytesFreed==0 ) tdsqlite3KeyInfoUnref((KeyInfo*)p4);
-      break;
-    }
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-    case P4_EXPR: {
-      tdsqlite3ExprDelete(db, (Expr*)p4);
-      break;
-    }
-#endif
-    case P4_FUNCDEF: {
-      freeEphemeralFunction(db, (FuncDef*)p4);
-      break;
-    }
-    case P4_MEM: {
-      if( db->pnBytesFreed==0 ){
-        tdsqlite3ValueFree((tdsqlite3_value*)p4);
-      }else{
-        freeP4Mem(db, (Mem*)p4);
-      }
-      break;
-    }
-    case P4_VTAB : {
-      if( db->pnBytesFreed==0 ) tdsqlite3VtabUnlock((VTable *)p4);
-      break;
-    }
-  }
-}
-
-/*
-** Free the space allocated for aOp and any p4 values allocated for the
-** opcodes contained within. If aOp is not NULL it is assumed to contain 
-** nOp entries. 
-*/
-static void vdbeFreeOpArray(tdsqlite3 *db, Op *aOp, int nOp){
-  if( aOp ){
-    Op *pOp;
-    for(pOp=&aOp[nOp-1]; pOp>=aOp; pOp--){
-      if( pOp->p4type <= P4_FREE_IF_LE ) freeP4(db, pOp->p4type, pOp->p4.p);
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-      tdsqlite3DbFree(db, pOp->zComment);
-#endif     
-    }
-    tdsqlite3DbFreeNN(db, aOp);
-  }
-}
-
-/*
-** Link the SubProgram object passed as the second argument into the linked
-** list at Vdbe.pSubProgram. This list is used to delete all sub-program
-** objects when the VM is no longer required.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeLinkSubProgram(Vdbe *pVdbe, SubProgram *p){
-  p->pNext = pVdbe->pProgram;
-  pVdbe->pProgram = p;
-}
-
-/*
-** Return true if the given Vdbe has any SubPrograms.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeHasSubProgram(Vdbe *pVdbe){
-  return pVdbe->pProgram!=0;
-}
-
-/*
-** Change the opcode at addr into OP_Noop
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeChangeToNoop(Vdbe *p, int addr){
-  VdbeOp *pOp;
-  if( p->db->mallocFailed ) return 0;
-  assert( addr>=0 && addr<p->nOp );
-  pOp = &p->aOp[addr];
-  freeP4(p->db, pOp->p4type, pOp->p4.p);
-  pOp->p4type = P4_NOTUSED;
-  pOp->p4.z = 0;
-  pOp->opcode = OP_Noop;
-  return 1;
-}
-
-/*
-** If the last opcode is "op" and it is not a jump destination,
-** then remove it.  Return true if and only if an opcode was removed.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeDeletePriorOpcode(Vdbe *p, u8 op){
-  if( p->nOp>0 && p->aOp[p->nOp-1].opcode==op ){
-    return tdsqlite3VdbeChangeToNoop(p, p->nOp-1);
-  }else{
-    return 0;
-  }
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Generate an OP_ReleaseReg opcode to indicate that a range of
-** registers, except any identified by mask, are no longer in use.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeReleaseRegisters(
-  Parse *pParse,       /* Parsing context */
-  int iFirst,          /* Index of first register to be released */
-  int N,               /* Number of registers to release */
-  u32 mask,            /* Mask of registers to NOT release */
-  int bUndefine        /* If true, mark registers as undefined */
-){
-  if( N==0 ) return;
-  assert( pParse->pVdbe );
-  assert( iFirst>=1 );
-  assert( iFirst+N-1<=pParse->nMem );
-  if( N<=31 && mask!=0 ){
-    while( N>0 && (mask&1)!=0 ){
-      mask >>= 1;
-      iFirst++;
-      N--;
-    }
-    while( N>0 && N<=32 && (mask & MASKBIT32(N-1))!=0 ){
-      mask &= ~MASKBIT32(N-1);
-      N--;
-    }
-  }
-  if( N>0 ){
-    tdsqlite3VdbeAddOp3(pParse->pVdbe, OP_ReleaseReg, iFirst, N, *(int*)&mask);
-    if( bUndefine ) tdsqlite3VdbeChangeP5(pParse->pVdbe, 1);
-  }
-}
-#endif /* SQLITE_DEBUG */
-
-
-/*
-** Change the value of the P4 operand for a specific instruction.
-** This routine is useful when a large program is loaded from a
-** static array using tdsqlite3VdbeAddOpList but we want to make a
-** few minor changes to the program.
-**
-** If n>=0 then the P4 operand is dynamic, meaning that a copy of
-** the string is made into memory obtained from tdsqlite3_malloc().
-** A value of n==0 means copy bytes of zP4 up to and including the
-** first null byte.  If n>0 then copy n+1 bytes of zP4.
-** 
-** Other values of n (P4_STATIC, P4_COLLSEQ etc.) indicate that zP4 points
-** to a string or structure that is guaranteed to exist for the lifetime of
-** the Vdbe. In these cases we can just copy the pointer.
-**
-** If addr<0 then change P4 on the most recently inserted instruction.
-*/
-static void SQLITE_NOINLINE vdbeChangeP4Full(
-  Vdbe *p,
-  Op *pOp,
-  const char *zP4,
-  int n
-){
-  if( pOp->p4type ){
-    freeP4(p->db, pOp->p4type, pOp->p4.p);
-    pOp->p4type = 0;
-    pOp->p4.p = 0;
-  }
-  if( n<0 ){
-    tdsqlite3VdbeChangeP4(p, (int)(pOp - p->aOp), zP4, n);
-  }else{
-    if( n==0 ) n = tdsqlite3Strlen30(zP4);
-    pOp->p4.z = tdsqlite3DbStrNDup(p->db, zP4, n);
-    pOp->p4type = P4_DYNAMIC;
-  }
-}
-SQLITE_PRIVATE void tdsqlite3VdbeChangeP4(Vdbe *p, int addr, const char *zP4, int n){
-  Op *pOp;
-  tdsqlite3 *db;
-  assert( p!=0 );
-  db = p->db;
-  assert( p->magic==VDBE_MAGIC_INIT );
-  assert( p->aOp!=0 || db->mallocFailed );
-  if( db->mallocFailed ){
-    if( n!=P4_VTAB ) freeP4(db, n, (void*)*(char**)&zP4);
-    return;
-  }
-  assert( p->nOp>0 );
-  assert( addr<p->nOp );
-  if( addr<0 ){
-    addr = p->nOp - 1;
-  }
-  pOp = &p->aOp[addr];
-  if( n>=0 || pOp->p4type ){
-    vdbeChangeP4Full(p, pOp, zP4, n);
-    return;
-  }
-  if( n==P4_INT32 ){
-    /* Note: this cast is safe, because the origin data point was an int
-    ** that was cast to a (const char *). */
-    pOp->p4.i = SQLITE_PTR_TO_INT(zP4);
-    pOp->p4type = P4_INT32;
-  }else if( zP4!=0 ){
-    assert( n<0 );
-    pOp->p4.p = (void*)zP4;
-    pOp->p4type = (signed char)n;
-    if( n==P4_VTAB ) tdsqlite3VtabLock((VTable*)zP4);
-  }
-}
-
-/*
-** Change the P4 operand of the most recently coded instruction 
-** to the value defined by the arguments.  This is a high-speed
-** version of tdsqlite3VdbeChangeP4().
-**
-** The P4 operand must not have been previously defined.  And the new
-** P4 must not be P4_INT32.  Use tdsqlite3VdbeChangeP4() in either of
-** those cases.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeAppendP4(Vdbe *p, void *pP4, int n){
-  VdbeOp *pOp;
-  assert( n!=P4_INT32 && n!=P4_VTAB );
-  assert( n<=0 );
-  if( p->db->mallocFailed ){
-    freeP4(p->db, n, pP4);
-  }else{
-    assert( pP4!=0 );
-    assert( p->nOp>0 );
-    pOp = &p->aOp[p->nOp-1];
-    assert( pOp->p4type==P4_NOTUSED );
-    pOp->p4type = n;
-    pOp->p4.p = pP4;
-  }
-}
-
-/*
-** Set the P4 on the most recently added opcode to the KeyInfo for the
-** index given.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSetP4KeyInfo(Parse *pParse, Index *pIdx){
-  Vdbe *v = pParse->pVdbe;
-  KeyInfo *pKeyInfo;
-  assert( v!=0 );
-  assert( pIdx!=0 );
-  pKeyInfo = tdsqlite3KeyInfoOfIndex(pParse, pIdx);
-  if( pKeyInfo ) tdsqlite3VdbeAppendP4(v, pKeyInfo, P4_KEYINFO);
-}
-
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-/*
-** Change the comment on the most recently coded instruction.  Or
-** insert a No-op and add the comment to that new instruction.  This
-** makes the code easier to read during debugging.  None of this happens
-** in a production build.
-*/
-static void vdbeVComment(Vdbe *p, const char *zFormat, va_list ap){
-  assert( p->nOp>0 || p->aOp==0 );
-  assert( p->aOp==0 || p->aOp[p->nOp-1].zComment==0 || p->db->mallocFailed
-          || p->pParse->nErr>0 );
-  if( p->nOp ){
-    assert( p->aOp );
-    tdsqlite3DbFree(p->db, p->aOp[p->nOp-1].zComment);
-    p->aOp[p->nOp-1].zComment = tdsqlite3VMPrintf(p->db, zFormat, ap);
-  }
-}
-SQLITE_PRIVATE void tdsqlite3VdbeComment(Vdbe *p, const char *zFormat, ...){
-  va_list ap;
-  if( p ){
-    va_start(ap, zFormat);
-    vdbeVComment(p, zFormat, ap);
-    va_end(ap);
-  }
-}
-SQLITE_PRIVATE void tdsqlite3VdbeNoopComment(Vdbe *p, const char *zFormat, ...){
-  va_list ap;
-  if( p ){
-    tdsqlite3VdbeAddOp0(p, OP_Noop);
-    va_start(ap, zFormat);
-    vdbeVComment(p, zFormat, ap);
-    va_end(ap);
-  }
-}
-#endif  /* NDEBUG */
-
-#ifdef SQLITE_VDBE_COVERAGE
-/*
-** Set the value if the iSrcLine field for the previously coded instruction.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSetLineNumber(Vdbe *v, int iLine){
-  tdsqlite3VdbeGetOp(v,-1)->iSrcLine = iLine;
-}
-#endif /* SQLITE_VDBE_COVERAGE */
-
-/*
-** Return the opcode for a given address.  If the address is -1, then
-** return the most recently inserted opcode.
-**
-** If a memory allocation error has occurred prior to the calling of this
-** routine, then a pointer to a dummy VdbeOp will be returned.  That opcode
-** is readable but not writable, though it is cast to a writable value.
-** The return of a dummy opcode allows the call to continue functioning
-** after an OOM fault without having to check to see if the return from 
-** this routine is a valid pointer.  But because the dummy.opcode is 0,
-** dummy will never be written to.  This is verified by code inspection and
-** by running with Valgrind.
-*/
-SQLITE_PRIVATE VdbeOp *tdsqlite3VdbeGetOp(Vdbe *p, int addr){
-  /* C89 specifies that the constant "dummy" will be initialized to all
-  ** zeros, which is correct.  MSVC generates a warning, nevertheless. */
-  static VdbeOp dummy;  /* Ignore the MSVC warning about no initializer */
-  assert( p->magic==VDBE_MAGIC_INIT );
-  if( addr<0 ){
-    addr = p->nOp - 1;
-  }
-  assert( (addr>=0 && addr<p->nOp) || p->db->mallocFailed );
-  if( p->db->mallocFailed ){
-    return (VdbeOp*)&dummy;
-  }else{
-    return &p->aOp[addr];
-  }
-}
-
-#if defined(SQLITE_ENABLE_EXPLAIN_COMMENTS)
-/*
-** Return an integer value for one of the parameters to the opcode pOp
-** determined by character c.
-*/
-static int translateP(char c, const Op *pOp){
-  if( c=='1' ) return pOp->p1;
-  if( c=='2' ) return pOp->p2;
-  if( c=='3' ) return pOp->p3;
-  if( c=='4' ) return pOp->p4.i;
-  return pOp->p5;
-}
-
-/*
-** Compute a string for the "comment" field of a VDBE opcode listing.
-**
-** The Synopsis: field in comments in the vdbe.c source file gets converted
-** to an extra string that is appended to the tdsqlite3OpcodeName().  In the
-** absence of other comments, this synopsis becomes the comment on the opcode.
-** Some translation occurs:
-**
-**       "PX"      ->  "r[X]"
-**       "PX@PY"   ->  "r[X..X+Y-1]"  or "r[x]" if y is 0 or 1
-**       "PX@PY+1" ->  "r[X..X+Y]"    or "r[x]" if y is 0
-**       "PY..PY"  ->  "r[X..Y]"      or "r[x]" if y<=x
-*/
-static int displayComment(
-  const Op *pOp,     /* The opcode to be commented */
-  const char *zP4,   /* Previously obtained value for P4 */
-  char *zTemp,       /* Write result here */
-  int nTemp          /* Space available in zTemp[] */
-){
-  const char *zOpName;
-  const char *zSynopsis;
-  int nOpName;
-  int ii, jj;
-  char zAlt[50];
-  zOpName = tdsqlite3OpcodeName(pOp->opcode);
-  nOpName = tdsqlite3Strlen30(zOpName);
-  if( zOpName[nOpName+1] ){
-    int seenCom = 0;
-    char c;
-    zSynopsis = zOpName += nOpName + 1;
-    if( strncmp(zSynopsis,"IF ",3)==0 ){
-      if( pOp->p5 & SQLITE_STOREP2 ){
-        tdsqlite3_snprintf(sizeof(zAlt), zAlt, "r[P2] = (%s)", zSynopsis+3);
-      }else{
-        tdsqlite3_snprintf(sizeof(zAlt), zAlt, "if %s goto P2", zSynopsis+3);
-      }
-      zSynopsis = zAlt;
-    }
-    for(ii=jj=0; jj<nTemp-1 && (c = zSynopsis[ii])!=0; ii++){
-      if( c=='P' ){
-        c = zSynopsis[++ii];
-        if( c=='4' ){
-          tdsqlite3_snprintf(nTemp-jj, zTemp+jj, "%s", zP4);
-        }else if( c=='X' ){
-          tdsqlite3_snprintf(nTemp-jj, zTemp+jj, "%s", pOp->zComment);
-          seenCom = 1;
-        }else{
-          int v1 = translateP(c, pOp);
-          int v2;
-          tdsqlite3_snprintf(nTemp-jj, zTemp+jj, "%d", v1);
-          if( strncmp(zSynopsis+ii+1, "@P", 2)==0 ){
-            ii += 3;
-            jj += tdsqlite3Strlen30(zTemp+jj);
-            v2 = translateP(zSynopsis[ii], pOp);
-            if( strncmp(zSynopsis+ii+1,"+1",2)==0 ){
-              ii += 2;
-              v2++;
-            }
-            if( v2>1 ){
-              tdsqlite3_snprintf(nTemp-jj, zTemp+jj, "..%d", v1+v2-1);
-            }
-          }else if( strncmp(zSynopsis+ii+1, "..P3", 4)==0 && pOp->p3==0 ){
-            ii += 4;
-          }
-        }
-        jj += tdsqlite3Strlen30(zTemp+jj);
-      }else{
-        zTemp[jj++] = c;
-      }
-    }
-    if( !seenCom && jj<nTemp-5 && pOp->zComment ){
-      tdsqlite3_snprintf(nTemp-jj, zTemp+jj, "; %s", pOp->zComment);
-      jj += tdsqlite3Strlen30(zTemp+jj);
-    }
-    if( jj<nTemp ) zTemp[jj] = 0;
-  }else if( pOp->zComment ){
-    tdsqlite3_snprintf(nTemp, zTemp, "%s", pOp->zComment);
-    jj = tdsqlite3Strlen30(zTemp);
-  }else{
-    zTemp[0] = 0;
-    jj = 0;
-  }
-  return jj;
-}
-#endif /* SQLITE_DEBUG */
-
-#if VDBE_DISPLAY_P4 && defined(SQLITE_ENABLE_CURSOR_HINTS)
-/*
-** Translate the P4.pExpr value for an OP_CursorHint opcode into text
-** that can be displayed in the P4 column of EXPLAIN output.
-*/
-static void displayP4Expr(StrAccum *p, Expr *pExpr){
-  const char *zOp = 0;
-  switch( pExpr->op ){
-    case TK_STRING:
-      tdsqlite3_str_appendf(p, "%Q", pExpr->u.zToken);
-      break;
-    case TK_INTEGER:
-      tdsqlite3_str_appendf(p, "%d", pExpr->u.iValue);
-      break;
-    case TK_NULL:
-      tdsqlite3_str_appendf(p, "NULL");
-      break;
-    case TK_REGISTER: {
-      tdsqlite3_str_appendf(p, "r[%d]", pExpr->iTable);
-      break;
-    }
-    case TK_COLUMN: {
-      if( pExpr->iColumn<0 ){
-        tdsqlite3_str_appendf(p, "rowid");
-      }else{
-        tdsqlite3_str_appendf(p, "c%d", (int)pExpr->iColumn);
-      }
-      break;
-    }
-    case TK_LT:      zOp = "LT";      break;
-    case TK_LE:      zOp = "LE";      break;
-    case TK_GT:      zOp = "GT";      break;
-    case TK_GE:      zOp = "GE";      break;
-    case TK_NE:      zOp = "NE";      break;
-    case TK_EQ:      zOp = "EQ";      break;
-    case TK_IS:      zOp = "IS";      break;
-    case TK_ISNOT:   zOp = "ISNOT";   break;
-    case TK_AND:     zOp = "AND";     break;
-    case TK_OR:      zOp = "OR";      break;
-    case TK_PLUS:    zOp = "ADD";     break;
-    case TK_STAR:    zOp = "MUL";     break;
-    case TK_MINUS:   zOp = "SUB";     break;
-    case TK_REM:     zOp = "REM";     break;
-    case TK_BITAND:  zOp = "BITAND";  break;
-    case TK_BITOR:   zOp = "BITOR";   break;
-    case TK_SLASH:   zOp = "DIV";     break;
-    case TK_LSHIFT:  zOp = "LSHIFT";  break;
-    case TK_RSHIFT:  zOp = "RSHIFT";  break;
-    case TK_CONCAT:  zOp = "CONCAT";  break;
-    case TK_UMINUS:  zOp = "MINUS";   break;
-    case TK_UPLUS:   zOp = "PLUS";    break;
-    case TK_BITNOT:  zOp = "BITNOT";  break;
-    case TK_NOT:     zOp = "NOT";     break;
-    case TK_ISNULL:  zOp = "ISNULL";  break;
-    case TK_NOTNULL: zOp = "NOTNULL"; break;
-
-    default:
-      tdsqlite3_str_appendf(p, "%s", "expr");
-      break;
-  }
-
-  if( zOp ){
-    tdsqlite3_str_appendf(p, "%s(", zOp);
-    displayP4Expr(p, pExpr->pLeft);
-    if( pExpr->pRight ){
-      tdsqlite3_str_append(p, ",", 1);
-      displayP4Expr(p, pExpr->pRight);
-    }
-    tdsqlite3_str_append(p, ")", 1);
-  }
-}
-#endif /* VDBE_DISPLAY_P4 && defined(SQLITE_ENABLE_CURSOR_HINTS) */
-
-
-#if VDBE_DISPLAY_P4
-/*
-** Compute a string that describes the P4 parameter for an opcode.
-** Use zTemp for any required temporary buffer space.
-*/
-static char *displayP4(Op *pOp, char *zTemp, int nTemp){
-  char *zP4 = zTemp;
-  StrAccum x;
-  assert( nTemp>=20 );
-  tdsqlite3StrAccumInit(&x, 0, zTemp, nTemp, 0);
-  switch( pOp->p4type ){
-    case P4_KEYINFO: {
-      int j;
-      KeyInfo *pKeyInfo = pOp->p4.pKeyInfo;
-      assert( pKeyInfo->aSortFlags!=0 );
-      tdsqlite3_str_appendf(&x, "k(%d", pKeyInfo->nKeyField);
-      for(j=0; j<pKeyInfo->nKeyField; j++){
-        CollSeq *pColl = pKeyInfo->aColl[j];
-        const char *zColl = pColl ? pColl->zName : "";
-        if( strcmp(zColl, "BINARY")==0 ) zColl = "B";
-        tdsqlite3_str_appendf(&x, ",%s%s%s", 
-               (pKeyInfo->aSortFlags[j] & KEYINFO_ORDER_DESC) ? "-" : "", 
-               (pKeyInfo->aSortFlags[j] & KEYINFO_ORDER_BIGNULL)? "N." : "", 
-               zColl);
-      }
-      tdsqlite3_str_append(&x, ")", 1);
-      break;
-    }
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-    case P4_EXPR: {
-      displayP4Expr(&x, pOp->p4.pExpr);
-      break;
-    }
-#endif
-    case P4_COLLSEQ: {
-      CollSeq *pColl = pOp->p4.pColl;
-      tdsqlite3_str_appendf(&x, "(%.20s)", pColl->zName);
-      break;
-    }
-    case P4_FUNCDEF: {
-      FuncDef *pDef = pOp->p4.pFunc;
-      tdsqlite3_str_appendf(&x, "%s(%d)", pDef->zName, pDef->nArg);
-      break;
-    }
-    case P4_FUNCCTX: {
-      FuncDef *pDef = pOp->p4.pCtx->pFunc;
-      tdsqlite3_str_appendf(&x, "%s(%d)", pDef->zName, pDef->nArg);
-      break;
-    }
-    case P4_INT64: {
-      tdsqlite3_str_appendf(&x, "%lld", *pOp->p4.pI64);
-      break;
-    }
-    case P4_INT32: {
-      tdsqlite3_str_appendf(&x, "%d", pOp->p4.i);
-      break;
-    }
-    case P4_REAL: {
-      tdsqlite3_str_appendf(&x, "%.16g", *pOp->p4.pReal);
-      break;
-    }
-    case P4_MEM: {
-      Mem *pMem = pOp->p4.pMem;
-      if( pMem->flags & MEM_Str ){
-        zP4 = pMem->z;
-      }else if( pMem->flags & (MEM_Int|MEM_IntReal) ){
-        tdsqlite3_str_appendf(&x, "%lld", pMem->u.i);
-      }else if( pMem->flags & MEM_Real ){
-        tdsqlite3_str_appendf(&x, "%.16g", pMem->u.r);
-      }else if( pMem->flags & MEM_Null ){
-        zP4 = "NULL";
-      }else{
-        assert( pMem->flags & MEM_Blob );
-        zP4 = "(blob)";
-      }
-      break;
-    }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    case P4_VTAB: {
-      tdsqlite3_vtab *pVtab = pOp->p4.pVtab->pVtab;
-      tdsqlite3_str_appendf(&x, "vtab:%p", pVtab);
-      break;
-    }
-#endif
-    case P4_INTARRAY: {
-      int i;
-      int *ai = pOp->p4.ai;
-      int n = ai[0];   /* The first element of an INTARRAY is always the
-                       ** count of the number of elements to follow */
-      for(i=1; i<=n; i++){
-        tdsqlite3_str_appendf(&x, ",%d", ai[i]);
-      }
-      zTemp[0] = '[';
-      tdsqlite3_str_append(&x, "]", 1);
-      break;
-    }
-    case P4_SUBPROGRAM: {
-      tdsqlite3_str_appendf(&x, "program");
-      break;
-    }
-    case P4_DYNBLOB:
-    case P4_ADVANCE: {
-      zTemp[0] = 0;
-      break;
-    }
-    case P4_TABLE: {
-      tdsqlite3_str_appendf(&x, "%s", pOp->p4.pTab->zName);
-      break;
-    }
-    default: {
-      zP4 = pOp->p4.z;
-      if( zP4==0 ){
-        zP4 = zTemp;
-        zTemp[0] = 0;
-      }
-    }
-  }
-  tdsqlite3StrAccumFinish(&x);
-  assert( zP4!=0 );
-  return zP4;
-}
-#endif /* VDBE_DISPLAY_P4 */
-
-/*
-** Declare to the Vdbe that the BTree object at db->aDb[i] is used.
-**
-** The prepared statements need to know in advance the complete set of
-** attached databases that will be use.  A mask of these databases
-** is maintained in p->btreeMask.  The p->lockMask value is the subset of
-** p->btreeMask of databases that will require a lock.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeUsesBtree(Vdbe *p, int i){
-  assert( i>=0 && i<p->db->nDb && i<(int)sizeof(yDbMask)*8 );
-  assert( i<(int)sizeof(p->btreeMask)*8 );
-  DbMaskSet(p->btreeMask, i);
-  if( i!=1 && tdsqlite3BtreeSharable(p->db->aDb[i].pBt) ){
-    DbMaskSet(p->lockMask, i);
-  }
-}
-
-#if !defined(SQLITE_OMIT_SHARED_CACHE)
-/*
-** If SQLite is compiled to support shared-cache mode and to be threadsafe,
-** this routine obtains the mutex associated with each BtShared structure
-** that may be accessed by the VM passed as an argument. In doing so it also
-** sets the BtShared.db member of each of the BtShared structures, ensuring
-** that the correct busy-handler callback is invoked if required.
-**
-** If SQLite is not threadsafe but does support shared-cache mode, then
-** tdsqlite3BtreeEnter() is invoked to set the BtShared.db variables
-** of all of BtShared structures accessible via the database handle 
-** associated with the VM.
-**
-** If SQLite is not threadsafe and does not support shared-cache mode, this
-** function is a no-op.
-**
-** The p->btreeMask field is a bitmask of all btrees that the prepared 
-** statement p will ever use.  Let N be the number of bits in p->btreeMask
-** corresponding to btrees that use shared cache.  Then the runtime of
-** this routine is N*N.  But as N is rarely more than 1, this should not
-** be a problem.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeEnter(Vdbe *p){
-  int i;
-  tdsqlite3 *db;
-  Db *aDb;
-  int nDb;
-  if( DbMaskAllZero(p->lockMask) ) return;  /* The common case */
-  db = p->db;
-  aDb = db->aDb;
-  nDb = db->nDb;
-  for(i=0; i<nDb; i++){
-    if( i!=1 && DbMaskTest(p->lockMask,i) && ALWAYS(aDb[i].pBt!=0) ){
-      tdsqlite3BtreeEnter(aDb[i].pBt);
-    }
-  }
-}
-#endif
-
-#if !defined(SQLITE_OMIT_SHARED_CACHE) && SQLITE_THREADSAFE>0
-/*
-** Unlock all of the btrees previously locked by a call to tdsqlite3VdbeEnter().
-*/
-static SQLITE_NOINLINE void vdbeLeave(Vdbe *p){
-  int i;
-  tdsqlite3 *db;
-  Db *aDb;
-  int nDb;
-  db = p->db;
-  aDb = db->aDb;
-  nDb = db->nDb;
-  for(i=0; i<nDb; i++){
-    if( i!=1 && DbMaskTest(p->lockMask,i) && ALWAYS(aDb[i].pBt!=0) ){
-      tdsqlite3BtreeLeave(aDb[i].pBt);
-    }
-  }
-}
-SQLITE_PRIVATE void tdsqlite3VdbeLeave(Vdbe *p){
-  if( DbMaskAllZero(p->lockMask) ) return;  /* The common case */
-  vdbeLeave(p);
-}
-#endif
-
-#if defined(VDBE_PROFILE) || defined(SQLITE_DEBUG)
-/*
-** Print a single opcode.  This routine is used for debugging only.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbePrintOp(FILE *pOut, int pc, VdbeOp *pOp){
-  char *zP4;
-  char zPtr[50];
-  char zCom[100];
-  static const char *zFormat1 = "%4d %-13s %4d %4d %4d %-13s %.2X %s\n";
-  if( pOut==0 ) pOut = stdout;
-  zP4 = displayP4(pOp, zPtr, sizeof(zPtr));
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-  displayComment(pOp, zP4, zCom, sizeof(zCom));
-#else
-  zCom[0] = 0;
-#endif
-  /* NB:  The tdsqlite3OpcodeName() function is implemented by code created
-  ** by the mkopcodeh.awk and mkopcodec.awk scripts which extract the
-  ** information from the vdbe.c source text */
-  fprintf(pOut, zFormat1, pc, 
-      tdsqlite3OpcodeName(pOp->opcode), pOp->p1, pOp->p2, pOp->p3, zP4, pOp->p5,
-      zCom
-  );
-  fflush(pOut);
-}
-#endif
-
-/*
-** Initialize an array of N Mem element.
-*/
-static void initMemArray(Mem *p, int N, tdsqlite3 *db, u16 flags){
-  while( (N--)>0 ){
-    p->db = db;
-    p->flags = flags;
-    p->szMalloc = 0;
-#ifdef SQLITE_DEBUG
-    p->pScopyFrom = 0;
-#endif
-    p++;
-  }
-}
-
-/*
-** Release an array of N Mem elements
-*/
-static void releaseMemArray(Mem *p, int N){
-  if( p && N ){
-    Mem *pEnd = &p[N];
-    tdsqlite3 *db = p->db;
-    if( db->pnBytesFreed ){
-      do{
-        if( p->szMalloc ) tdsqlite3DbFree(db, p->zMalloc);
-      }while( (++p)<pEnd );
-      return;
-    }
-    do{
-      assert( (&p[1])==pEnd || p[0].db==p[1].db );
-      assert( tdsqlite3VdbeCheckMemInvariants(p) );
-
-      /* This block is really an inlined version of tdsqlite3VdbeMemRelease()
-      ** that takes advantage of the fact that the memory cell value is 
-      ** being set to NULL after releasing any dynamic resources.
-      **
-      ** The justification for duplicating code is that according to 
-      ** callgrind, this causes a certain test case to hit the CPU 4.7 
-      ** percent less (x86 linux, gcc version 4.1.2, -O6) than if 
-      ** tdsqlite3MemRelease() were called from here. With -O2, this jumps
-      ** to 6.6 percent. The test case is inserting 1000 rows into a table 
-      ** with no indexes using a single prepared INSERT statement, bind() 
-      ** and reset(). Inserts are grouped into a transaction.
-      */
-      testcase( p->flags & MEM_Agg );
-      testcase( p->flags & MEM_Dyn );
-      testcase( p->xDel==tdsqlite3VdbeFrameMemDel );
-      if( p->flags&(MEM_Agg|MEM_Dyn) ){
-        tdsqlite3VdbeMemRelease(p);
-      }else if( p->szMalloc ){
-        tdsqlite3DbFreeNN(db, p->zMalloc);
-        p->szMalloc = 0;
-      }
-
-      p->flags = MEM_Undefined;
-    }while( (++p)<pEnd );
-  }
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Verify that pFrame is a valid VdbeFrame pointer.  Return true if it is
-** and false if something is wrong.
-**
-** This routine is intended for use inside of assert() statements only.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeFrameIsValid(VdbeFrame *pFrame){
-  if( pFrame->iFrameMagic!=SQLITE_FRAME_MAGIC ) return 0;
-  return 1;
-}
-#endif
-
-
-/*
-** This is a destructor on a Mem object (which is really an tdsqlite3_value)
-** that deletes the Frame object that is attached to it as a blob.
-**
-** This routine does not delete the Frame right away.  It merely adds the
-** frame to a list of frames to be deleted when the Vdbe halts.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeFrameMemDel(void *pArg){
-  VdbeFrame *pFrame = (VdbeFrame*)pArg;
-  assert( tdsqlite3VdbeFrameIsValid(pFrame) );
-  pFrame->pParent = pFrame->v->pDelFrame;
-  pFrame->v->pDelFrame = pFrame;
-}
-
-
-/*
-** Delete a VdbeFrame object and its contents. VdbeFrame objects are
-** allocated by the OP_Program opcode in tdsqlite3VdbeExec().
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeFrameDelete(VdbeFrame *p){
-  int i;
-  Mem *aMem = VdbeFrameMem(p);
-  VdbeCursor **apCsr = (VdbeCursor **)&aMem[p->nChildMem];
-  assert( tdsqlite3VdbeFrameIsValid(p) );
-  for(i=0; i<p->nChildCsr; i++){
-    tdsqlite3VdbeFreeCursor(p->v, apCsr[i]);
-  }
-  releaseMemArray(aMem, p->nChildMem);
-  tdsqlite3VdbeDeleteAuxData(p->v->db, &p->pAuxData, -1, 0);
-  tdsqlite3DbFree(p->v->db, p);
-}
-
-#ifndef SQLITE_OMIT_EXPLAIN
-/*
-** Give a listing of the program in the virtual machine.
-**
-** The interface is the same as tdsqlite3VdbeExec().  But instead of
-** running the code, it invokes the callback once for each instruction.
-** This feature is used to implement "EXPLAIN".
-**
-** When p->explain==1, each instruction is listed.  When
-** p->explain==2, only OP_Explain instructions are listed and these
-** are shown in a different format.  p->explain==2 is used to implement
-** EXPLAIN QUERY PLAN.
-** 2018-04-24:  In p->explain==2 mode, the OP_Init opcodes of triggers
-** are also shown, so that the boundaries between the main program and
-** each trigger are clear.
-**
-** When p->explain==1, first the main program is listed, then each of
-** the trigger subprograms are listed one by one.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeList(
-  Vdbe *p                   /* The VDBE */
-){
-  int nRow;                            /* Stop when row count reaches this */
-  int nSub = 0;                        /* Number of sub-vdbes seen so far */
-  SubProgram **apSub = 0;              /* Array of sub-vdbes */
-  Mem *pSub = 0;                       /* Memory cell hold array of subprogs */
-  tdsqlite3 *db = p->db;                 /* The database connection */
-  int i;                               /* Loop counter */
-  int rc = SQLITE_OK;                  /* Return code */
-  Mem *pMem = &p->aMem[1];             /* First Mem of result set */
-  int bListSubprogs = (p->explain==1 || (db->flags & SQLITE_TriggerEQP)!=0);
-  Op *pOp = 0;
-
-  assert( p->explain );
-  assert( p->magic==VDBE_MAGIC_RUN );
-  assert( p->rc==SQLITE_OK || p->rc==SQLITE_BUSY || p->rc==SQLITE_NOMEM );
-
-  /* Even though this opcode does not use dynamic strings for
-  ** the result, result columns may become dynamic if the user calls
-  ** tdsqlite3_column_text16(), causing a translation to UTF-16 encoding.
-  */
-  releaseMemArray(pMem, 8);
-  p->pResultSet = 0;
-
-  if( p->rc==SQLITE_NOMEM ){
-    /* This happens if a malloc() inside a call to tdsqlite3_column_text() or
-    ** tdsqlite3_column_text16() failed.  */
-    tdsqlite3OomFault(db);
-    return SQLITE_ERROR;
-  }
-
-  /* When the number of output rows reaches nRow, that means the
-  ** listing has finished and tdsqlite3_step() should return SQLITE_DONE.
-  ** nRow is the sum of the number of rows in the main program, plus
-  ** the sum of the number of rows in all trigger subprograms encountered
-  ** so far.  The nRow value will increase as new trigger subprograms are
-  ** encountered, but p->pc will eventually catch up to nRow.
-  */
-  nRow = p->nOp;
-  if( bListSubprogs ){
-    /* The first 8 memory cells are used for the result set.  So we will
-    ** commandeer the 9th cell to use as storage for an array of pointers
-    ** to trigger subprograms.  The VDBE is guaranteed to have at least 9
-    ** cells.  */
-    assert( p->nMem>9 );
-    pSub = &p->aMem[9];
-    if( pSub->flags&MEM_Blob ){
-      /* On the first call to tdsqlite3_step(), pSub will hold a NULL.  It is
-      ** initialized to a BLOB by the P4_SUBPROGRAM processing logic below */
-      nSub = pSub->n/sizeof(Vdbe*);
-      apSub = (SubProgram **)pSub->z;
-    }
-    for(i=0; i<nSub; i++){
-      nRow += apSub[i]->nOp;
-    }
-  }
-
-  while(1){  /* Loop exits via break */
-    i = p->pc++;
-    if( i>=nRow ){
-      p->rc = SQLITE_OK;
-      rc = SQLITE_DONE;
-      break;
-    }
-    if( i<p->nOp ){
-      /* The output line number is small enough that we are still in the
-      ** main program. */
-      pOp = &p->aOp[i];
-    }else{
-      /* We are currently listing subprograms.  Figure out which one and
-      ** pick up the appropriate opcode. */
-      int j;
-      i -= p->nOp;
-      assert( apSub!=0 );
-      assert( nSub>0 );
-      for(j=0; i>=apSub[j]->nOp; j++){
-        i -= apSub[j]->nOp;
-        assert( i<apSub[j]->nOp || j+1<nSub );
-      }
-      pOp = &apSub[j]->aOp[i];
-    }
-
-    /* When an OP_Program opcode is encounter (the only opcode that has
-    ** a P4_SUBPROGRAM argument), expand the size of the array of subprograms
-    ** kept in p->aMem[9].z to hold the new program - assuming this subprogram
-    ** has not already been seen.
-    */
-    if( bListSubprogs && pOp->p4type==P4_SUBPROGRAM ){
-      int nByte = (nSub+1)*sizeof(SubProgram*);
-      int j;
-      for(j=0; j<nSub; j++){
-        if( apSub[j]==pOp->p4.pProgram ) break;
-      }
-      if( j==nSub ){
-        p->rc = tdsqlite3VdbeMemGrow(pSub, nByte, nSub!=0);
-        if( p->rc!=SQLITE_OK ){
-          rc = SQLITE_ERROR;
-          break;
-        }
-        apSub = (SubProgram **)pSub->z;
-        apSub[nSub++] = pOp->p4.pProgram;
-        pSub->flags |= MEM_Blob;
-        pSub->n = nSub*sizeof(SubProgram*);
-        nRow += pOp->p4.pProgram->nOp;
-      }
-    }
-    if( p->explain<2 ) break;
-    if( pOp->opcode==OP_Explain ) break;
-    if( pOp->opcode==OP_Init && p->pc>1 ) break;
-  }
-
-  if( rc==SQLITE_OK ){
-    if( db->u1.isInterrupted ){
-      p->rc = SQLITE_INTERRUPT;
-      rc = SQLITE_ERROR;
-      tdsqlite3VdbeError(p, tdsqlite3ErrStr(p->rc));
-    }else{
-      char *zP4;
-      if( p->explain==1 ){
-        pMem->flags = MEM_Int;
-        pMem->u.i = i;                                /* Program counter */
-        pMem++;
-    
-        pMem->flags = MEM_Static|MEM_Str|MEM_Term;
-        pMem->z = (char*)tdsqlite3OpcodeName(pOp->opcode); /* Opcode */
-        assert( pMem->z!=0 );
-        pMem->n = tdsqlite3Strlen30(pMem->z);
-        pMem->enc = SQLITE_UTF8;
-        pMem++;
-      }
-
-      pMem->flags = MEM_Int;
-      pMem->u.i = pOp->p1;                          /* P1 */
-      pMem++;
-
-      pMem->flags = MEM_Int;
-      pMem->u.i = pOp->p2;                          /* P2 */
-      pMem++;
-
-      pMem->flags = MEM_Int;
-      pMem->u.i = pOp->p3;                          /* P3 */
-      pMem++;
-
-      if( tdsqlite3VdbeMemClearAndResize(pMem, 100) ){ /* P4 */
-        assert( p->db->mallocFailed );
-        return SQLITE_ERROR;
-      }
-      pMem->flags = MEM_Str|MEM_Term;
-      zP4 = displayP4(pOp, pMem->z, pMem->szMalloc);
-      if( zP4!=pMem->z ){
-        pMem->n = 0;
-        tdsqlite3VdbeMemSetStr(pMem, zP4, -1, SQLITE_UTF8, 0);
-      }else{
-        assert( pMem->z!=0 );
-        pMem->n = tdsqlite3Strlen30(pMem->z);
-        pMem->enc = SQLITE_UTF8;
-      }
-      pMem++;
-
-      if( p->explain==1 ){
-        if( tdsqlite3VdbeMemClearAndResize(pMem, 4) ){
-          assert( p->db->mallocFailed );
-          return SQLITE_ERROR;
-        }
-        pMem->flags = MEM_Str|MEM_Term;
-        pMem->n = 2;
-        tdsqlite3_snprintf(3, pMem->z, "%.2x", pOp->p5);   /* P5 */
-        pMem->enc = SQLITE_UTF8;
-        pMem++;
-    
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-        if( tdsqlite3VdbeMemClearAndResize(pMem, 500) ){
-          assert( p->db->mallocFailed );
-          return SQLITE_ERROR;
-        }
-        pMem->flags = MEM_Str|MEM_Term;
-        pMem->n = displayComment(pOp, zP4, pMem->z, 500);
-        pMem->enc = SQLITE_UTF8;
-#else
-        pMem->flags = MEM_Null;                       /* Comment */
-#endif
-      }
-
-      p->nResColumn = 8 - 4*(p->explain-1);
-      p->pResultSet = &p->aMem[1];
-      p->rc = SQLITE_OK;
-      rc = SQLITE_ROW;
-    }
-  }
-  return rc;
-}
-#endif /* SQLITE_OMIT_EXPLAIN */
-
-#ifdef SQLITE_DEBUG
-/*
-** Print the SQL that was used to generate a VDBE program.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbePrintSql(Vdbe *p){
-  const char *z = 0;
-  if( p->zSql ){
-    z = p->zSql;
-  }else if( p->nOp>=1 ){
-    const VdbeOp *pOp = &p->aOp[0];
-    if( pOp->opcode==OP_Init && pOp->p4.z!=0 ){
-      z = pOp->p4.z;
-      while( tdsqlite3Isspace(*z) ) z++;
-    }
-  }
-  if( z ) printf("SQL: [%s]\n", z);
-}
-#endif
-
-#if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
-/*
-** Print an IOTRACE message showing SQL content.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeIOTraceSql(Vdbe *p){
-  int nOp = p->nOp;
-  VdbeOp *pOp;
-  if( tdsqlite3IoTrace==0 ) return;
-  if( nOp<1 ) return;
-  pOp = &p->aOp[0];
-  if( pOp->opcode==OP_Init && pOp->p4.z!=0 ){
-    int i, j;
-    char z[1000];
-    tdsqlite3_snprintf(sizeof(z), z, "%s", pOp->p4.z);
-    for(i=0; tdsqlite3Isspace(z[i]); i++){}
-    for(j=0; z[i]; i++){
-      if( tdsqlite3Isspace(z[i]) ){
-        if( z[i-1]!=' ' ){
-          z[j++] = ' ';
-        }
-      }else{
-        z[j++] = z[i];
-      }
-    }
-    z[j] = 0;
-    tdsqlite3IoTrace("SQL %s\n", z);
-  }
-}
-#endif /* !SQLITE_OMIT_TRACE && SQLITE_ENABLE_IOTRACE */
-
-/* An instance of this object describes bulk memory available for use
-** by subcomponents of a prepared statement.  Space is allocated out
-** of a ReusableSpace object by the allocSpace() routine below.
-*/
-struct ReusableSpace {
-  u8 *pSpace;            /* Available memory */
-  tdsqlite3_int64 nFree;   /* Bytes of available memory */
-  tdsqlite3_int64 nNeeded; /* Total bytes that could not be allocated */
-};
-
-/* Try to allocate nByte bytes of 8-byte aligned bulk memory for pBuf
-** from the ReusableSpace object.  Return a pointer to the allocated
-** memory on success.  If insufficient memory is available in the
-** ReusableSpace object, increase the ReusableSpace.nNeeded
-** value by the amount needed and return NULL.
-**
-** If pBuf is not initially NULL, that means that the memory has already
-** been allocated by a prior call to this routine, so just return a copy
-** of pBuf and leave ReusableSpace unchanged.
-**
-** This allocator is employed to repurpose unused slots at the end of the
-** opcode array of prepared state for other memory needs of the prepared
-** statement.
-*/
-static void *allocSpace(
-  struct ReusableSpace *p,  /* Bulk memory available for allocation */
-  void *pBuf,               /* Pointer to a prior allocation */
-  tdsqlite3_int64 nByte       /* Bytes of memory needed */
-){
-  assert( EIGHT_BYTE_ALIGNMENT(p->pSpace) );
-  if( pBuf==0 ){
-    nByte = ROUND8(nByte);
-    if( nByte <= p->nFree ){
-      p->nFree -= nByte;
-      pBuf = &p->pSpace[p->nFree];
-    }else{
-      p->nNeeded += nByte;
-    }
-  }
-  assert( EIGHT_BYTE_ALIGNMENT(pBuf) );
-  return pBuf;
-}
-
-/*
-** Rewind the VDBE back to the beginning in preparation for
-** running it.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeRewind(Vdbe *p){
-#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
-  int i;
-#endif
-  assert( p!=0 );
-  assert( p->magic==VDBE_MAGIC_INIT || p->magic==VDBE_MAGIC_RESET );
-
-  /* There should be at least one opcode.
-  */
-  assert( p->nOp>0 );
-
-  /* Set the magic to VDBE_MAGIC_RUN sooner rather than later. */
-  p->magic = VDBE_MAGIC_RUN;
-
-#ifdef SQLITE_DEBUG
-  for(i=0; i<p->nMem; i++){
-    assert( p->aMem[i].db==p->db );
-  }
-#endif
-  p->pc = -1;
-  p->rc = SQLITE_OK;
-  p->errorAction = OE_Abort;
-  p->nChange = 0;
-  p->cacheCtr = 1;
-  p->minWriteFileFormat = 255;
-  p->iStatement = 0;
-  p->nFkConstraint = 0;
-#ifdef VDBE_PROFILE
-  for(i=0; i<p->nOp; i++){
-    p->aOp[i].cnt = 0;
-    p->aOp[i].cycles = 0;
-  }
-#endif
-}
-
-/*
-** Prepare a virtual machine for execution for the first time after
-** creating the virtual machine.  This involves things such
-** as allocating registers and initializing the program counter.
-** After the VDBE has be prepped, it can be executed by one or more
-** calls to tdsqlite3VdbeExec().  
-**
-** This function may be called exactly once on each virtual machine.
-** After this routine is called the VM has been "packaged" and is ready
-** to run.  After this routine is called, further calls to 
-** tdsqlite3VdbeAddOp() functions are prohibited.  This routine disconnects
-** the Vdbe from the Parse object that helped generate it so that the
-** the Vdbe becomes an independent entity and the Parse object can be
-** destroyed.
-**
-** Use the tdsqlite3VdbeRewind() procedure to restore a virtual machine back
-** to its initial state after it has been run.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMakeReady(
-  Vdbe *p,                       /* The VDBE */
-  Parse *pParse                  /* Parsing context */
-){
-  tdsqlite3 *db;                   /* The database connection */
-  int nVar;                      /* Number of parameters */
-  int nMem;                      /* Number of VM memory registers */
-  int nCursor;                   /* Number of cursors required */
-  int nArg;                      /* Number of arguments in subprograms */
-  int n;                         /* Loop counter */
-  struct ReusableSpace x;        /* Reusable bulk memory */
-
-  assert( p!=0 );
-  assert( p->nOp>0 );
-  assert( pParse!=0 );
-  assert( p->magic==VDBE_MAGIC_INIT );
-  assert( pParse==p->pParse );
-  db = p->db;
-  assert( db->mallocFailed==0 );
-  nVar = pParse->nVar;
-  nMem = pParse->nMem;
-  nCursor = pParse->nTab;
-  nArg = pParse->nMaxArg;
-  
-  /* Each cursor uses a memory cell.  The first cursor (cursor 0) can
-  ** use aMem[0] which is not otherwise used by the VDBE program.  Allocate
-  ** space at the end of aMem[] for cursors 1 and greater.
-  ** See also: allocateCursor().
-  */
-  nMem += nCursor;
-  if( nCursor==0 && nMem>0 ) nMem++;  /* Space for aMem[0] even if not used */
-
-  /* Figure out how much reusable memory is available at the end of the
-  ** opcode array.  This extra memory will be reallocated for other elements
-  ** of the prepared statement.
-  */
-  n = ROUND8(sizeof(Op)*p->nOp);              /* Bytes of opcode memory used */
-  x.pSpace = &((u8*)p->aOp)[n];               /* Unused opcode memory */
-  assert( EIGHT_BYTE_ALIGNMENT(x.pSpace) );
-  x.nFree = ROUNDDOWN8(pParse->szOpAlloc - n);  /* Bytes of unused memory */
-  assert( x.nFree>=0 );
-  assert( EIGHT_BYTE_ALIGNMENT(&x.pSpace[x.nFree]) );
-
-  resolveP2Values(p, &nArg);
-  p->usesStmtJournal = (u8)(pParse->isMultiWrite && pParse->mayAbort);
-  if( pParse->explain ){
-    static const char * const azColName[] = {
-       "addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment",
-       "id", "parent", "notused", "detail"
-    };
-    int iFirst, mx, i;
-    if( nMem<10 ) nMem = 10;
-    if( pParse->explain==2 ){
-      tdsqlite3VdbeSetNumCols(p, 4);
-      iFirst = 8;
-      mx = 12;
-    }else{
-      tdsqlite3VdbeSetNumCols(p, 8);
-      iFirst = 0;
-      mx = 8;
-    }
-    for(i=iFirst; i<mx; i++){
-      tdsqlite3VdbeSetColName(p, i-iFirst, COLNAME_NAME,
-                            azColName[i], SQLITE_STATIC);
-    }
-  }
-  p->expired = 0;
-
-  /* Memory for registers, parameters, cursor, etc, is allocated in one or two
-  ** passes.  On the first pass, we try to reuse unused memory at the 
-  ** end of the opcode array.  If we are unable to satisfy all memory
-  ** requirements by reusing the opcode array tail, then the second
-  ** pass will fill in the remainder using a fresh memory allocation.  
-  **
-  ** This two-pass approach that reuses as much memory as possible from
-  ** the leftover memory at the end of the opcode array.  This can significantly
-  ** reduce the amount of memory held by a prepared statement.
-  */
-  x.nNeeded = 0;
-  p->aMem = allocSpace(&x, 0, nMem*sizeof(Mem));
-  p->aVar = allocSpace(&x, 0, nVar*sizeof(Mem));
-  p->apArg = allocSpace(&x, 0, nArg*sizeof(Mem*));
-  p->apCsr = allocSpace(&x, 0, nCursor*sizeof(VdbeCursor*));
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-  p->anExec = allocSpace(&x, 0, p->nOp*sizeof(i64));
-#endif
-  if( x.nNeeded ){
-    x.pSpace = p->pFree = tdsqlite3DbMallocRawNN(db, x.nNeeded);
-    x.nFree = x.nNeeded;
-    if( !db->mallocFailed ){
-      p->aMem = allocSpace(&x, p->aMem, nMem*sizeof(Mem));
-      p->aVar = allocSpace(&x, p->aVar, nVar*sizeof(Mem));
-      p->apArg = allocSpace(&x, p->apArg, nArg*sizeof(Mem*));
-      p->apCsr = allocSpace(&x, p->apCsr, nCursor*sizeof(VdbeCursor*));
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-      p->anExec = allocSpace(&x, p->anExec, p->nOp*sizeof(i64));
-#endif
-    }
-  }
-
-  p->pVList = pParse->pVList;
-  pParse->pVList =  0;
-  p->explain = pParse->explain;
-  if( db->mallocFailed ){
-    p->nVar = 0;
-    p->nCursor = 0;
-    p->nMem = 0;
-  }else{
-    p->nCursor = nCursor;
-    p->nVar = (ynVar)nVar;
-    initMemArray(p->aVar, nVar, db, MEM_Null);
-    p->nMem = nMem;
-    initMemArray(p->aMem, nMem, db, MEM_Undefined);
-    memset(p->apCsr, 0, nCursor*sizeof(VdbeCursor*));
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-    memset(p->anExec, 0, p->nOp*sizeof(i64));
-#endif
-  }
-  tdsqlite3VdbeRewind(p);
-}
-
-/*
-** Close a VDBE cursor and release all the resources that cursor 
-** happens to hold.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeFreeCursor(Vdbe *p, VdbeCursor *pCx){
-  if( pCx==0 ){
-    return;
-  }
-  assert( pCx->pBtx==0 || pCx->eCurType==CURTYPE_BTREE );
-  switch( pCx->eCurType ){
-    case CURTYPE_SORTER: {
-      tdsqlite3VdbeSorterClose(p->db, pCx);
-      break;
-    }
-    case CURTYPE_BTREE: {
-      if( pCx->isEphemeral ){
-        if( pCx->pBtx ) tdsqlite3BtreeClose(pCx->pBtx);
-        /* The pCx->pCursor will be close automatically, if it exists, by
-        ** the call above. */
-      }else{
-        assert( pCx->uc.pCursor!=0 );
-        tdsqlite3BtreeCloseCursor(pCx->uc.pCursor);
-      }
-      break;
-    }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    case CURTYPE_VTAB: {
-      tdsqlite3_vtab_cursor *pVCur = pCx->uc.pVCur;
-      const tdsqlite3_module *pModule = pVCur->pVtab->pModule;
-      assert( pVCur->pVtab->nRef>0 );
-      pVCur->pVtab->nRef--;
-      pModule->xClose(pVCur);
-      break;
-    }
-#endif
-  }
-}
-
-/*
-** Close all cursors in the current frame.
-*/
-static void closeCursorsInFrame(Vdbe *p){
-  if( p->apCsr ){
-    int i;
-    for(i=0; i<p->nCursor; i++){
-      VdbeCursor *pC = p->apCsr[i];
-      if( pC ){
-        tdsqlite3VdbeFreeCursor(p, pC);
-        p->apCsr[i] = 0;
-      }
-    }
-  }
-}
-
-/*
-** Copy the values stored in the VdbeFrame structure to its Vdbe. This
-** is used, for example, when a trigger sub-program is halted to restore
-** control to the main program.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeFrameRestore(VdbeFrame *pFrame){
-  Vdbe *v = pFrame->v;
-  closeCursorsInFrame(v);
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-  v->anExec = pFrame->anExec;
-#endif
-  v->aOp = pFrame->aOp;
-  v->nOp = pFrame->nOp;
-  v->aMem = pFrame->aMem;
-  v->nMem = pFrame->nMem;
-  v->apCsr = pFrame->apCsr;
-  v->nCursor = pFrame->nCursor;
-  v->db->lastRowid = pFrame->lastRowid;
-  v->nChange = pFrame->nChange;
-  v->db->nChange = pFrame->nDbChange;
-  tdsqlite3VdbeDeleteAuxData(v->db, &v->pAuxData, -1, 0);
-  v->pAuxData = pFrame->pAuxData;
-  pFrame->pAuxData = 0;
-  return pFrame->pc;
-}
-
-/*
-** Close all cursors.
-**
-** Also release any dynamic memory held by the VM in the Vdbe.aMem memory 
-** cell array. This is necessary as the memory cell array may contain
-** pointers to VdbeFrame objects, which may in turn contain pointers to
-** open cursors.
-*/
-static void closeAllCursors(Vdbe *p){
-  if( p->pFrame ){
-    VdbeFrame *pFrame;
-    for(pFrame=p->pFrame; pFrame->pParent; pFrame=pFrame->pParent);
-    tdsqlite3VdbeFrameRestore(pFrame);
-    p->pFrame = 0;
-    p->nFrame = 0;
-  }
-  assert( p->nFrame==0 );
-  closeCursorsInFrame(p);
-  if( p->aMem ){
-    releaseMemArray(p->aMem, p->nMem);
-  }
-  while( p->pDelFrame ){
-    VdbeFrame *pDel = p->pDelFrame;
-    p->pDelFrame = pDel->pParent;
-    tdsqlite3VdbeFrameDelete(pDel);
-  }
-
-  /* Delete any auxdata allocations made by the VM */
-  if( p->pAuxData ) tdsqlite3VdbeDeleteAuxData(p->db, &p->pAuxData, -1, 0);
-  assert( p->pAuxData==0 );
-}
-
-/*
-** Set the number of result columns that will be returned by this SQL
-** statement. This is now set at compile time, rather than during
-** execution of the vdbe program so that tdsqlite3_column_count() can
-** be called on an SQL statement before tdsqlite3_step().
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSetNumCols(Vdbe *p, int nResColumn){
-  int n;
-  tdsqlite3 *db = p->db;
-
-  if( p->nResColumn ){
-    releaseMemArray(p->aColName, p->nResColumn*COLNAME_N);
-    tdsqlite3DbFree(db, p->aColName);
-  }
-  n = nResColumn*COLNAME_N;
-  p->nResColumn = (u16)nResColumn;
-  p->aColName = (Mem*)tdsqlite3DbMallocRawNN(db, sizeof(Mem)*n );
-  if( p->aColName==0 ) return;
-  initMemArray(p->aColName, n, db, MEM_Null);
-}
-
-/*
-** Set the name of the idx'th column to be returned by the SQL statement.
-** zName must be a pointer to a nul terminated string.
-**
-** This call must be made after a call to tdsqlite3VdbeSetNumCols().
-**
-** The final parameter, xDel, must be one of SQLITE_DYNAMIC, SQLITE_STATIC
-** or SQLITE_TRANSIENT. If it is SQLITE_DYNAMIC, then the buffer pointed
-** to by zName will be freed by tdsqlite3DbFree() when the vdbe is destroyed.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeSetColName(
-  Vdbe *p,                         /* Vdbe being configured */
-  int idx,                         /* Index of column zName applies to */
-  int var,                         /* One of the COLNAME_* constants */
-  const char *zName,               /* Pointer to buffer containing name */
-  void (*xDel)(void*)              /* Memory management strategy for zName */
-){
-  int rc;
-  Mem *pColName;
-  assert( idx<p->nResColumn );
-  assert( var<COLNAME_N );
-  if( p->db->mallocFailed ){
-    assert( !zName || xDel!=SQLITE_DYNAMIC );
-    return SQLITE_NOMEM_BKPT;
-  }
-  assert( p->aColName!=0 );
-  pColName = &(p->aColName[idx+var*p->nResColumn]);
-  rc = tdsqlite3VdbeMemSetStr(pColName, zName, -1, SQLITE_UTF8, xDel);
-  assert( rc!=0 || !zName || (pColName->flags&MEM_Term)!=0 );
-  return rc;
-}
-
-/*
-** A read or write transaction may or may not be active on database handle
-** db. If a transaction is active, commit it. If there is a
-** write-transaction spanning more than one database file, this routine
-** takes care of the master journal trickery.
-*/
-static int vdbeCommit(tdsqlite3 *db, Vdbe *p){
-  int i;
-  int nTrans = 0;  /* Number of databases with an active write-transaction
-                   ** that are candidates for a two-phase commit using a
-                   ** master-journal */
-  int rc = SQLITE_OK;
-  int needXcommit = 0;
-
-#ifdef SQLITE_OMIT_VIRTUALTABLE
-  /* With this option, tdsqlite3VtabSync() is defined to be simply 
-  ** SQLITE_OK so p is not used. 
-  */
-  UNUSED_PARAMETER(p);
-#endif
-
-  /* Before doing anything else, call the xSync() callback for any
-  ** virtual module tables written in this transaction. This has to
-  ** be done before determining whether a master journal file is 
-  ** required, as an xSync() callback may add an attached database
-  ** to the transaction.
-  */
-  rc = tdsqlite3VtabSync(db, p);
-
-  /* This loop determines (a) if the commit hook should be invoked and
-  ** (b) how many database files have open write transactions, not 
-  ** including the temp database. (b) is important because if more than 
-  ** one database file has an open write transaction, a master journal
-  ** file is required for an atomic commit.
-  */ 
-  for(i=0; rc==SQLITE_OK && i<db->nDb; i++){ 
-    Btree *pBt = db->aDb[i].pBt;
-    if( tdsqlite3BtreeIsInTrans(pBt) ){
-      /* Whether or not a database might need a master journal depends upon
-      ** its journal mode (among other things).  This matrix determines which
-      ** journal modes use a master journal and which do not */
-      static const u8 aMJNeeded[] = {
-        /* DELETE   */  1,
-        /* PERSIST   */ 1,
-        /* OFF       */ 0,
-        /* TRUNCATE  */ 1,
-        /* MEMORY    */ 0,
-        /* WAL       */ 0
-      };
-      Pager *pPager;   /* Pager associated with pBt */
-      needXcommit = 1;
-      tdsqlite3BtreeEnter(pBt);
-      pPager = tdsqlite3BtreePager(pBt);
-      if( db->aDb[i].safety_level!=PAGER_SYNCHRONOUS_OFF
-       && aMJNeeded[tdsqlite3PagerGetJournalMode(pPager)]
-       && tdsqlite3PagerIsMemdb(pPager)==0
-      ){ 
-        assert( i!=1 );
-        nTrans++;
-      }
-      rc = tdsqlite3PagerExclusiveLock(pPager);
-      tdsqlite3BtreeLeave(pBt);
-    }
-  }
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  /* If there are any write-transactions at all, invoke the commit hook */
-  if( needXcommit && db->xCommitCallback ){
-    rc = db->xCommitCallback(db->pCommitArg);
-    if( rc ){
-      return SQLITE_CONSTRAINT_COMMITHOOK;
-    }
-  }
-
-  /* The simple case - no more than one database file (not counting the
-  ** TEMP database) has a transaction active.   There is no need for the
-  ** master-journal.
-  **
-  ** If the return value of tdsqlite3BtreeGetFilename() is a zero length
-  ** string, it means the main database is :memory: or a temp file.  In 
-  ** that case we do not support atomic multi-file commits, so use the 
-  ** simple case then too.
-  */
-  if( 0==tdsqlite3Strlen30(tdsqlite3BtreeGetFilename(db->aDb[0].pBt))
-   || nTrans<=1
-  ){
-    for(i=0; rc==SQLITE_OK && i<db->nDb; i++){
-      Btree *pBt = db->aDb[i].pBt;
-      if( pBt ){
-        rc = tdsqlite3BtreeCommitPhaseOne(pBt, 0);
-      }
-    }
-
-    /* Do the commit only if all databases successfully complete phase 1. 
-    ** If one of the BtreeCommitPhaseOne() calls fails, this indicates an
-    ** IO error while deleting or truncating a journal file. It is unlikely,
-    ** but could happen. In this case abandon processing and return the error.
-    */
-    for(i=0; rc==SQLITE_OK && i<db->nDb; i++){
-      Btree *pBt = db->aDb[i].pBt;
-      if( pBt ){
-        rc = tdsqlite3BtreeCommitPhaseTwo(pBt, 0);
-      }
-    }
-    if( rc==SQLITE_OK ){
-      tdsqlite3VtabCommit(db);
-    }
-  }
-
-  /* The complex case - There is a multi-file write-transaction active.
-  ** This requires a master journal file to ensure the transaction is
-  ** committed atomically.
-  */
-#ifndef SQLITE_OMIT_DISKIO
-  else{
-    tdsqlite3_vfs *pVfs = db->pVfs;
-    char *zMaster = 0;   /* File-name for the master journal */
-    char const *zMainFile = tdsqlite3BtreeGetFilename(db->aDb[0].pBt);
-    tdsqlite3_file *pMaster = 0;
-    i64 offset = 0;
-    int res;
-    int retryCount = 0;
-    int nMainFile;
-
-    /* Select a master journal file name */
-    nMainFile = tdsqlite3Strlen30(zMainFile);
-    zMaster = tdsqlite3MPrintf(db, "%s-mjXXXXXX9XXz%c%c", zMainFile, 0, 0);
-    if( zMaster==0 ) return SQLITE_NOMEM_BKPT;
-    do {
-      u32 iRandom;
-      if( retryCount ){
-        if( retryCount>100 ){
-          tdsqlite3_log(SQLITE_FULL, "MJ delete: %s", zMaster);
-          tdsqlite3OsDelete(pVfs, zMaster, 0);
-          break;
-        }else if( retryCount==1 ){
-          tdsqlite3_log(SQLITE_FULL, "MJ collide: %s", zMaster);
-        }
-      }
-      retryCount++;
-      tdsqlite3_randomness(sizeof(iRandom), &iRandom);
-      tdsqlite3_snprintf(13, &zMaster[nMainFile], "-mj%06X9%02X",
-                               (iRandom>>8)&0xffffff, iRandom&0xff);
-      /* The antipenultimate character of the master journal name must
-      ** be "9" to avoid name collisions when using 8+3 filenames. */
-      assert( zMaster[tdsqlite3Strlen30(zMaster)-3]=='9' );
-      tdsqlite3FileSuffix3(zMainFile, zMaster);
-      rc = tdsqlite3OsAccess(pVfs, zMaster, SQLITE_ACCESS_EXISTS, &res);
-    }while( rc==SQLITE_OK && res );
-    if( rc==SQLITE_OK ){
-      /* Open the master journal. */
-      rc = tdsqlite3OsOpenMalloc(pVfs, zMaster, &pMaster, 
-          SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|
-          SQLITE_OPEN_EXCLUSIVE|SQLITE_OPEN_MASTER_JOURNAL, 0
-      );
-    }
-    if( rc!=SQLITE_OK ){
-      tdsqlite3DbFree(db, zMaster);
-      return rc;
-    }
- 
-    /* Write the name of each database file in the transaction into the new
-    ** master journal file. If an error occurs at this point close
-    ** and delete the master journal file. All the individual journal files
-    ** still have 'null' as the master journal pointer, so they will roll
-    ** back independently if a failure occurs.
-    */
-    for(i=0; i<db->nDb; i++){
-      Btree *pBt = db->aDb[i].pBt;
-      if( tdsqlite3BtreeIsInTrans(pBt) ){
-        char const *zFile = tdsqlite3BtreeGetJournalname(pBt);
-        if( zFile==0 ){
-          continue;  /* Ignore TEMP and :memory: databases */
-        }
-        assert( zFile[0]!=0 );
-        rc = tdsqlite3OsWrite(pMaster, zFile, tdsqlite3Strlen30(zFile)+1, offset);
-        offset += tdsqlite3Strlen30(zFile)+1;
-        if( rc!=SQLITE_OK ){
-          tdsqlite3OsCloseFree(pMaster);
-          tdsqlite3OsDelete(pVfs, zMaster, 0);
-          tdsqlite3DbFree(db, zMaster);
-          return rc;
-        }
-      }
-    }
-
-    /* Sync the master journal file. If the IOCAP_SEQUENTIAL device
-    ** flag is set this is not required.
-    */
-    if( 0==(tdsqlite3OsDeviceCharacteristics(pMaster)&SQLITE_IOCAP_SEQUENTIAL)
-     && SQLITE_OK!=(rc = tdsqlite3OsSync(pMaster, SQLITE_SYNC_NORMAL))
-    ){
-      tdsqlite3OsCloseFree(pMaster);
-      tdsqlite3OsDelete(pVfs, zMaster, 0);
-      tdsqlite3DbFree(db, zMaster);
-      return rc;
-    }
-
-    /* Sync all the db files involved in the transaction. The same call
-    ** sets the master journal pointer in each individual journal. If
-    ** an error occurs here, do not delete the master journal file.
-    **
-    ** If the error occurs during the first call to
-    ** tdsqlite3BtreeCommitPhaseOne(), then there is a chance that the
-    ** master journal file will be orphaned. But we cannot delete it,
-    ** in case the master journal file name was written into the journal
-    ** file before the failure occurred.
-    */
-    for(i=0; rc==SQLITE_OK && i<db->nDb; i++){ 
-      Btree *pBt = db->aDb[i].pBt;
-      if( pBt ){
-        rc = tdsqlite3BtreeCommitPhaseOne(pBt, zMaster);
-      }
-    }
-    tdsqlite3OsCloseFree(pMaster);
-    assert( rc!=SQLITE_BUSY );
-    if( rc!=SQLITE_OK ){
-      tdsqlite3DbFree(db, zMaster);
-      return rc;
-    }
-
-    /* Delete the master journal file. This commits the transaction. After
-    ** doing this the directory is synced again before any individual
-    ** transaction files are deleted.
-    */
-    rc = tdsqlite3OsDelete(pVfs, zMaster, 1);
-    tdsqlite3DbFree(db, zMaster);
-    zMaster = 0;
-    if( rc ){
-      return rc;
-    }
-
-    /* All files and directories have already been synced, so the following
-    ** calls to tdsqlite3BtreeCommitPhaseTwo() are only closing files and
-    ** deleting or truncating journals. If something goes wrong while
-    ** this is happening we don't really care. The integrity of the
-    ** transaction is already guaranteed, but some stray 'cold' journals
-    ** may be lying around. Returning an error code won't help matters.
-    */
-    disable_simulated_io_errors();
-    tdsqlite3BeginBenignMalloc();
-    for(i=0; i<db->nDb; i++){ 
-      Btree *pBt = db->aDb[i].pBt;
-      if( pBt ){
-        tdsqlite3BtreeCommitPhaseTwo(pBt, 1);
-      }
-    }
-    tdsqlite3EndBenignMalloc();
-    enable_simulated_io_errors();
-
-    tdsqlite3VtabCommit(db);
-  }
-#endif
-
-  return rc;
-}
-
-/* 
-** This routine checks that the sqlite3.nVdbeActive count variable
-** matches the number of vdbe's in the list sqlite3.pVdbe that are
-** currently active. An assertion fails if the two counts do not match.
-** This is an internal self-check only - it is not an essential processing
-** step.
-**
-** This is a no-op if NDEBUG is defined.
-*/
-#ifndef NDEBUG
-static void checkActiveVdbeCnt(tdsqlite3 *db){
-  Vdbe *p;
-  int cnt = 0;
-  int nWrite = 0;
-  int nRead = 0;
-  p = db->pVdbe;
-  while( p ){
-    if( tdsqlite3_stmt_busy((tdsqlite3_stmt*)p) ){
-      cnt++;
-      if( p->readOnly==0 ) nWrite++;
-      if( p->bIsReader ) nRead++;
-    }
-    p = p->pNext;
-  }
-  assert( cnt==db->nVdbeActive );
-  assert( nWrite==db->nVdbeWrite );
-  assert( nRead==db->nVdbeRead );
-}
-#else
-#define checkActiveVdbeCnt(x)
-#endif
-
-/*
-** If the Vdbe passed as the first argument opened a statement-transaction,
-** close it now. Argument eOp must be either SAVEPOINT_ROLLBACK or
-** SAVEPOINT_RELEASE. If it is SAVEPOINT_ROLLBACK, then the statement
-** transaction is rolled back. If eOp is SAVEPOINT_RELEASE, then the 
-** statement transaction is committed.
-**
-** If an IO error occurs, an SQLITE_IOERR_XXX error code is returned. 
-** Otherwise SQLITE_OK.
-*/
-static SQLITE_NOINLINE int vdbeCloseStatement(Vdbe *p, int eOp){
-  tdsqlite3 *const db = p->db;
-  int rc = SQLITE_OK;
-  int i;
-  const int iSavepoint = p->iStatement-1;
-
-  assert( eOp==SAVEPOINT_ROLLBACK || eOp==SAVEPOINT_RELEASE);
-  assert( db->nStatement>0 );
-  assert( p->iStatement==(db->nStatement+db->nSavepoint) );
-
-  for(i=0; i<db->nDb; i++){ 
-    int rc2 = SQLITE_OK;
-    Btree *pBt = db->aDb[i].pBt;
-    if( pBt ){
-      if( eOp==SAVEPOINT_ROLLBACK ){
-        rc2 = tdsqlite3BtreeSavepoint(pBt, SAVEPOINT_ROLLBACK, iSavepoint);
-      }
-      if( rc2==SQLITE_OK ){
-        rc2 = tdsqlite3BtreeSavepoint(pBt, SAVEPOINT_RELEASE, iSavepoint);
-      }
-      if( rc==SQLITE_OK ){
-        rc = rc2;
-      }
-    }
-  }
-  db->nStatement--;
-  p->iStatement = 0;
-
-  if( rc==SQLITE_OK ){
-    if( eOp==SAVEPOINT_ROLLBACK ){
-      rc = tdsqlite3VtabSavepoint(db, SAVEPOINT_ROLLBACK, iSavepoint);
-    }
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3VtabSavepoint(db, SAVEPOINT_RELEASE, iSavepoint);
-    }
-  }
-
-  /* If the statement transaction is being rolled back, also restore the 
-  ** database handles deferred constraint counter to the value it had when 
-  ** the statement transaction was opened.  */
-  if( eOp==SAVEPOINT_ROLLBACK ){
-    db->nDeferredCons = p->nStmtDefCons;
-    db->nDeferredImmCons = p->nStmtDefImmCons;
-  }
-  return rc;
-}
-SQLITE_PRIVATE int tdsqlite3VdbeCloseStatement(Vdbe *p, int eOp){
-  if( p->db->nStatement && p->iStatement ){
-    return vdbeCloseStatement(p, eOp);
-  }
-  return SQLITE_OK;
-}
-
-
-/*
-** This function is called when a transaction opened by the database 
-** handle associated with the VM passed as an argument is about to be 
-** committed. If there are outstanding deferred foreign key constraint
-** violations, return SQLITE_ERROR. Otherwise, SQLITE_OK.
-**
-** If there are outstanding FK violations and this function returns 
-** SQLITE_ERROR, set the result of the VM to SQLITE_CONSTRAINT_FOREIGNKEY
-** and write an error message to it. Then return SQLITE_ERROR.
-*/
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-SQLITE_PRIVATE int tdsqlite3VdbeCheckFk(Vdbe *p, int deferred){
-  tdsqlite3 *db = p->db;
-  if( (deferred && (db->nDeferredCons+db->nDeferredImmCons)>0) 
-   || (!deferred && p->nFkConstraint>0) 
-  ){
-    p->rc = SQLITE_CONSTRAINT_FOREIGNKEY;
-    p->errorAction = OE_Abort;
-    tdsqlite3VdbeError(p, "FOREIGN KEY constraint failed");
-    return SQLITE_ERROR;
-  }
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** This routine is called the when a VDBE tries to halt.  If the VDBE
-** has made changes and is in autocommit mode, then commit those
-** changes.  If a rollback is needed, then do the rollback.
-**
-** This routine is the only way to move the state of a VM from
-** SQLITE_MAGIC_RUN to SQLITE_MAGIC_HALT.  It is harmless to
-** call this on a VM that is in the SQLITE_MAGIC_HALT state.
-**
-** Return an error code.  If the commit could not complete because of
-** lock contention, return SQLITE_BUSY.  If SQLITE_BUSY is returned, it
-** means the close did not happen and needs to be repeated.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeHalt(Vdbe *p){
-  int rc;                         /* Used to store transient return codes */
-  tdsqlite3 *db = p->db;
-
-  /* This function contains the logic that determines if a statement or
-  ** transaction will be committed or rolled back as a result of the
-  ** execution of this virtual machine. 
-  **
-  ** If any of the following errors occur:
-  **
-  **     SQLITE_NOMEM
-  **     SQLITE_IOERR
-  **     SQLITE_FULL
-  **     SQLITE_INTERRUPT
-  **
-  ** Then the internal cache might have been left in an inconsistent
-  ** state.  We need to rollback the statement transaction, if there is
-  ** one, or the complete transaction if there is no statement transaction.
-  */
-
-  if( p->magic!=VDBE_MAGIC_RUN ){
-    return SQLITE_OK;
-  }
-  if( db->mallocFailed ){
-    p->rc = SQLITE_NOMEM_BKPT;
-  }
-  closeAllCursors(p);
-  checkActiveVdbeCnt(db);
-
-  /* No commit or rollback needed if the program never started or if the
-  ** SQL statement does not read or write a database file.  */
-  if( p->pc>=0 && p->bIsReader ){
-    int mrc;   /* Primary error code from p->rc */
-    int eStatementOp = 0;
-    int isSpecialError;            /* Set to true if a 'special' error */
-
-    /* Lock all btrees used by the statement */
-    tdsqlite3VdbeEnter(p);
-
-    /* Check for one of the special errors */
-    mrc = p->rc & 0xff;
-    isSpecialError = mrc==SQLITE_NOMEM || mrc==SQLITE_IOERR
-                     || mrc==SQLITE_INTERRUPT || mrc==SQLITE_FULL;
-    if( isSpecialError ){
-      /* If the query was read-only and the error code is SQLITE_INTERRUPT, 
-      ** no rollback is necessary. Otherwise, at least a savepoint 
-      ** transaction must be rolled back to restore the database to a 
-      ** consistent state.
-      **
-      ** Even if the statement is read-only, it is important to perform
-      ** a statement or transaction rollback operation. If the error 
-      ** occurred while writing to the journal, sub-journal or database
-      ** file as part of an effort to free up cache space (see function
-      ** pagerStress() in pager.c), the rollback is required to restore 
-      ** the pager to a consistent state.
-      */
-      if( !p->readOnly || mrc!=SQLITE_INTERRUPT ){
-        if( (mrc==SQLITE_NOMEM || mrc==SQLITE_FULL) && p->usesStmtJournal ){
-          eStatementOp = SAVEPOINT_ROLLBACK;
-        }else{
-          /* We are forced to roll back the active transaction. Before doing
-          ** so, abort any other statements this handle currently has active.
-          */
-          tdsqlite3RollbackAll(db, SQLITE_ABORT_ROLLBACK);
-          tdsqlite3CloseSavepoints(db);
-          db->autoCommit = 1;
-          p->nChange = 0;
-        }
-      }
-    }
-
-    /* Check for immediate foreign key violations. */
-    if( p->rc==SQLITE_OK || (p->errorAction==OE_Fail && !isSpecialError) ){
-      tdsqlite3VdbeCheckFk(p, 0);
-    }
-  
-    /* If the auto-commit flag is set and this is the only active writer 
-    ** VM, then we do either a commit or rollback of the current transaction. 
-    **
-    ** Note: This block also runs if one of the special errors handled 
-    ** above has occurred. 
-    */
-    if( !tdsqlite3VtabInSync(db) 
-     && db->autoCommit 
-     && db->nVdbeWrite==(p->readOnly==0) 
-    ){
-      if( p->rc==SQLITE_OK || (p->errorAction==OE_Fail && !isSpecialError) ){
-        rc = tdsqlite3VdbeCheckFk(p, 1);
-        if( rc!=SQLITE_OK ){
-          if( NEVER(p->readOnly) ){
-            tdsqlite3VdbeLeave(p);
-            return SQLITE_ERROR;
-          }
-          rc = SQLITE_CONSTRAINT_FOREIGNKEY;
-        }else{ 
-          /* The auto-commit flag is true, the vdbe program was successful 
-          ** or hit an 'OR FAIL' constraint and there are no deferred foreign
-          ** key constraints to hold up the transaction. This means a commit 
-          ** is required. */
-          rc = vdbeCommit(db, p);
-        }
-        if( rc==SQLITE_BUSY && p->readOnly ){
-          tdsqlite3VdbeLeave(p);
-          return SQLITE_BUSY;
-        }else if( rc!=SQLITE_OK ){
-          p->rc = rc;
-          tdsqlite3RollbackAll(db, SQLITE_OK);
-          p->nChange = 0;
-        }else{
-          db->nDeferredCons = 0;
-          db->nDeferredImmCons = 0;
-          db->flags &= ~(u64)SQLITE_DeferFKs;
-          tdsqlite3CommitInternalChanges(db);
-        }
-      }else{
-        tdsqlite3RollbackAll(db, SQLITE_OK);
-        p->nChange = 0;
-      }
-      db->nStatement = 0;
-    }else if( eStatementOp==0 ){
-      if( p->rc==SQLITE_OK || p->errorAction==OE_Fail ){
-        eStatementOp = SAVEPOINT_RELEASE;
-      }else if( p->errorAction==OE_Abort ){
-        eStatementOp = SAVEPOINT_ROLLBACK;
-      }else{
-        tdsqlite3RollbackAll(db, SQLITE_ABORT_ROLLBACK);
-        tdsqlite3CloseSavepoints(db);
-        db->autoCommit = 1;
-        p->nChange = 0;
-      }
-    }
-  
-    /* If eStatementOp is non-zero, then a statement transaction needs to
-    ** be committed or rolled back. Call tdsqlite3VdbeCloseStatement() to
-    ** do so. If this operation returns an error, and the current statement
-    ** error code is SQLITE_OK or SQLITE_CONSTRAINT, then promote the
-    ** current statement error code.
-    */
-    if( eStatementOp ){
-      rc = tdsqlite3VdbeCloseStatement(p, eStatementOp);
-      if( rc ){
-        if( p->rc==SQLITE_OK || (p->rc&0xff)==SQLITE_CONSTRAINT ){
-          p->rc = rc;
-          tdsqlite3DbFree(db, p->zErrMsg);
-          p->zErrMsg = 0;
-        }
-        tdsqlite3RollbackAll(db, SQLITE_ABORT_ROLLBACK);
-        tdsqlite3CloseSavepoints(db);
-        db->autoCommit = 1;
-        p->nChange = 0;
-      }
-    }
-  
-    /* If this was an INSERT, UPDATE or DELETE and no statement transaction
-    ** has been rolled back, update the database connection change-counter. 
-    */
-    if( p->changeCntOn ){
-      if( eStatementOp!=SAVEPOINT_ROLLBACK ){
-        tdsqlite3VdbeSetChanges(db, p->nChange);
-      }else{
-        tdsqlite3VdbeSetChanges(db, 0);
-      }
-      p->nChange = 0;
-    }
-
-    /* Release the locks */
-    tdsqlite3VdbeLeave(p);
-  }
-
-  /* We have successfully halted and closed the VM.  Record this fact. */
-  if( p->pc>=0 ){
-    db->nVdbeActive--;
-    if( !p->readOnly ) db->nVdbeWrite--;
-    if( p->bIsReader ) db->nVdbeRead--;
-    assert( db->nVdbeActive>=db->nVdbeRead );
-    assert( db->nVdbeRead>=db->nVdbeWrite );
-    assert( db->nVdbeWrite>=0 );
-  }
-  p->magic = VDBE_MAGIC_HALT;
-  checkActiveVdbeCnt(db);
-  if( db->mallocFailed ){
-    p->rc = SQLITE_NOMEM_BKPT;
-  }
-
-  /* If the auto-commit flag is set to true, then any locks that were held
-  ** by connection db have now been released. Call tdsqlite3ConnectionUnlocked() 
-  ** to invoke any required unlock-notify callbacks.
-  */
-  if( db->autoCommit ){
-    tdsqlite3ConnectionUnlocked(db);
-  }
-
-  assert( db->nVdbeActive>0 || db->autoCommit==0 || db->nStatement==0 );
-  return (p->rc==SQLITE_BUSY ? SQLITE_BUSY : SQLITE_OK);
-}
-
-
-/*
-** Each VDBE holds the result of the most recent tdsqlite3_step() call
-** in p->rc.  This routine sets that result back to SQLITE_OK.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeResetStepResult(Vdbe *p){
-  p->rc = SQLITE_OK;
-}
-
-/*
-** Copy the error code and error message belonging to the VDBE passed
-** as the first argument to its database handle (so that they will be 
-** returned by calls to tdsqlite3_errcode() and tdsqlite3_errmsg()).
-**
-** This function does not clear the VDBE error code or message, just
-** copies them to the database handle.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeTransferError(Vdbe *p){
-  tdsqlite3 *db = p->db;
-  int rc = p->rc;
-  if( p->zErrMsg ){
-    db->bBenignMalloc++;
-    tdsqlite3BeginBenignMalloc();
-    if( db->pErr==0 ) db->pErr = tdsqlite3ValueNew(db);
-    tdsqlite3ValueSetStr(db->pErr, -1, p->zErrMsg, SQLITE_UTF8, SQLITE_TRANSIENT);
-    tdsqlite3EndBenignMalloc();
-    db->bBenignMalloc--;
-  }else if( db->pErr ){
-    tdsqlite3ValueSetNull(db->pErr);
-  }
-  db->errCode = rc;
-  return rc;
-}
-
-#ifdef SQLITE_ENABLE_SQLLOG
-/*
-** If an SQLITE_CONFIG_SQLLOG hook is registered and the VM has been run, 
-** invoke it.
-*/
-static void vdbeInvokeSqllog(Vdbe *v){
-  if( tdsqlite3GlobalConfig.xSqllog && v->rc==SQLITE_OK && v->zSql && v->pc>=0 ){
-    char *zExpanded = tdsqlite3VdbeExpandSql(v, v->zSql);
-    assert( v->db->init.busy==0 );
-    if( zExpanded ){
-      tdsqlite3GlobalConfig.xSqllog(
-          tdsqlite3GlobalConfig.pSqllogArg, v->db, zExpanded, 1
-      );
-      tdsqlite3DbFree(v->db, zExpanded);
-    }
-  }
-}
-#else
-# define vdbeInvokeSqllog(x)
-#endif
-
-/*
-** Clean up a VDBE after execution but do not delete the VDBE just yet.
-** Write any error messages into *pzErrMsg.  Return the result code.
-**
-** After this routine is run, the VDBE should be ready to be executed
-** again.
-**
-** To look at it another way, this routine resets the state of the
-** virtual machine from VDBE_MAGIC_RUN or VDBE_MAGIC_HALT back to
-** VDBE_MAGIC_INIT.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeReset(Vdbe *p){
-#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
-  int i;
-#endif
-
-  tdsqlite3 *db;
-  db = p->db;
-
-  /* If the VM did not run to completion or if it encountered an
-  ** error, then it might not have been halted properly.  So halt
-  ** it now.
-  */
-  tdsqlite3VdbeHalt(p);
-
-  /* If the VDBE has been run even partially, then transfer the error code
-  ** and error message from the VDBE into the main database structure.  But
-  ** if the VDBE has just been set to run but has not actually executed any
-  ** instructions yet, leave the main database error information unchanged.
-  */
-  if( p->pc>=0 ){
-    vdbeInvokeSqllog(p);
-    tdsqlite3VdbeTransferError(p);
-    if( p->runOnlyOnce ) p->expired = 1;
-  }else if( p->rc && p->expired ){
-    /* The expired flag was set on the VDBE before the first call
-    ** to tdsqlite3_step(). For consistency (since tdsqlite3_step() was
-    ** called), set the database error in this case as well.
-    */
-    tdsqlite3ErrorWithMsg(db, p->rc, p->zErrMsg ? "%s" : 0, p->zErrMsg);
-  }
-
-  /* Reset register contents and reclaim error message memory.
-  */
-#ifdef SQLITE_DEBUG
-  /* Execute assert() statements to ensure that the Vdbe.apCsr[] and 
-  ** Vdbe.aMem[] arrays have already been cleaned up.  */
-  if( p->apCsr ) for(i=0; i<p->nCursor; i++) assert( p->apCsr[i]==0 );
-  if( p->aMem ){
-    for(i=0; i<p->nMem; i++) assert( p->aMem[i].flags==MEM_Undefined );
-  }
-#endif
-  tdsqlite3DbFree(db, p->zErrMsg);
-  p->zErrMsg = 0;
-  p->pResultSet = 0;
-#ifdef SQLITE_DEBUG
-  p->nWrite = 0;
-#endif
-
-  /* Save profiling information from this VDBE run.
-  */
-#ifdef VDBE_PROFILE
-  {
-    FILE *out = fopen("vdbe_profile.out", "a");
-    if( out ){
-      fprintf(out, "---- ");
-      for(i=0; i<p->nOp; i++){
-        fprintf(out, "%02x", p->aOp[i].opcode);
-      }
-      fprintf(out, "\n");
-      if( p->zSql ){
-        char c, pc = 0;
-        fprintf(out, "-- ");
-        for(i=0; (c = p->zSql[i])!=0; i++){
-          if( pc=='\n' ) fprintf(out, "-- ");
-          putc(c, out);
-          pc = c;
-        }
-        if( pc!='\n' ) fprintf(out, "\n");
-      }
-      for(i=0; i<p->nOp; i++){
-        char zHdr[100];
-        tdsqlite3_snprintf(sizeof(zHdr), zHdr, "%6u %12llu %8llu ",
-           p->aOp[i].cnt,
-           p->aOp[i].cycles,
-           p->aOp[i].cnt>0 ? p->aOp[i].cycles/p->aOp[i].cnt : 0
-        );
-        fprintf(out, "%s", zHdr);
-        tdsqlite3VdbePrintOp(out, i, &p->aOp[i]);
-      }
-      fclose(out);
-    }
-  }
-#endif
-  p->magic = VDBE_MAGIC_RESET;
-  return p->rc & db->errMask;
-}
- 
-/*
-** Clean up and delete a VDBE after execution.  Return an integer which is
-** the result code.  Write any error message text into *pzErrMsg.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeFinalize(Vdbe *p){
-  int rc = SQLITE_OK;
-  if( p->magic==VDBE_MAGIC_RUN || p->magic==VDBE_MAGIC_HALT ){
-    rc = tdsqlite3VdbeReset(p);
-    assert( (rc & p->db->errMask)==rc );
-  }
-  tdsqlite3VdbeDelete(p);
-  return rc;
-}
-
-/*
-** If parameter iOp is less than zero, then invoke the destructor for
-** all auxiliary data pointers currently cached by the VM passed as
-** the first argument.
-**
-** Or, if iOp is greater than or equal to zero, then the destructor is
-** only invoked for those auxiliary data pointers created by the user 
-** function invoked by the OP_Function opcode at instruction iOp of 
-** VM pVdbe, and only then if:
-**
-**    * the associated function parameter is the 32nd or later (counting
-**      from left to right), or
-**
-**    * the corresponding bit in argument mask is clear (where the first
-**      function parameter corresponds to bit 0 etc.).
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeDeleteAuxData(tdsqlite3 *db, AuxData **pp, int iOp, int mask){
-  while( *pp ){
-    AuxData *pAux = *pp;
-    if( (iOp<0)
-     || (pAux->iAuxOp==iOp
-          && pAux->iAuxArg>=0
-          && (pAux->iAuxArg>31 || !(mask & MASKBIT32(pAux->iAuxArg))))
-    ){
-      testcase( pAux->iAuxArg==31 );
-      if( pAux->xDeleteAux ){
-        pAux->xDeleteAux(pAux->pAux);
-      }
-      *pp = pAux->pNextAux;
-      tdsqlite3DbFree(db, pAux);
-    }else{
-      pp= &pAux->pNextAux;
-    }
-  }
-}
-
-/*
-** Free all memory associated with the Vdbe passed as the second argument,
-** except for object itself, which is preserved.
-**
-** The difference between this function and tdsqlite3VdbeDelete() is that
-** VdbeDelete() also unlinks the Vdbe from the list of VMs associated with
-** the database connection and frees the object itself.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeClearObject(tdsqlite3 *db, Vdbe *p){
-  SubProgram *pSub, *pNext;
-  assert( p->db==0 || p->db==db );
-  releaseMemArray(p->aColName, p->nResColumn*COLNAME_N);
-  for(pSub=p->pProgram; pSub; pSub=pNext){
-    pNext = pSub->pNext;
-    vdbeFreeOpArray(db, pSub->aOp, pSub->nOp);
-    tdsqlite3DbFree(db, pSub);
-  }
-  if( p->magic!=VDBE_MAGIC_INIT ){
-    releaseMemArray(p->aVar, p->nVar);
-    tdsqlite3DbFree(db, p->pVList);
-    tdsqlite3DbFree(db, p->pFree);
-  }
-  vdbeFreeOpArray(db, p->aOp, p->nOp);
-  tdsqlite3DbFree(db, p->aColName);
-  tdsqlite3DbFree(db, p->zSql);
-#ifdef SQLITE_ENABLE_NORMALIZE
-  tdsqlite3DbFree(db, p->zNormSql);
-  {
-    DblquoteStr *pThis, *pNext;
-    for(pThis=p->pDblStr; pThis; pThis=pNext){
-      pNext = pThis->pNextStr;
-      tdsqlite3DbFree(db, pThis);
-    }
-  }
-#endif
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-  {
-    int i;
-    for(i=0; i<p->nScan; i++){
-      tdsqlite3DbFree(db, p->aScan[i].zName);
-    }
-    tdsqlite3DbFree(db, p->aScan);
-  }
-#endif
-}
-
-/*
-** Delete an entire VDBE.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeDelete(Vdbe *p){
-  tdsqlite3 *db;
-
-  assert( p!=0 );
-  db = p->db;
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  tdsqlite3VdbeClearObject(db, p);
-  if( p->pPrev ){
-    p->pPrev->pNext = p->pNext;
-  }else{
-    assert( db->pVdbe==p );
-    db->pVdbe = p->pNext;
-  }
-  if( p->pNext ){
-    p->pNext->pPrev = p->pPrev;
-  }
-  p->magic = VDBE_MAGIC_DEAD;
-  p->db = 0;
-  tdsqlite3DbFreeNN(db, p);
-}
-
-/*
-** The cursor "p" has a pending seek operation that has not yet been
-** carried out.  Seek the cursor now.  If an error occurs, return
-** the appropriate error code.
-*/
-SQLITE_PRIVATE int SQLITE_NOINLINE tdsqlite3VdbeFinishMoveto(VdbeCursor *p){
-  int res, rc;
-#ifdef SQLITE_TEST
-  extern int tdsqlite3_search_count;
-#endif
-  assert( p->deferredMoveto );
-  assert( p->isTable );
-  assert( p->eCurType==CURTYPE_BTREE );
-  rc = tdsqlite3BtreeMovetoUnpacked(p->uc.pCursor, 0, p->movetoTarget, 0, &res);
-  if( rc ) return rc;
-  if( res!=0 ) return SQLITE_CORRUPT_BKPT;
-#ifdef SQLITE_TEST
-  tdsqlite3_search_count++;
-#endif
-  p->deferredMoveto = 0;
-  p->cacheStatus = CACHE_STALE;
-  return SQLITE_OK;
-}
-
-/*
-** Something has moved cursor "p" out of place.  Maybe the row it was
-** pointed to was deleted out from under it.  Or maybe the btree was
-** rebalanced.  Whatever the cause, try to restore "p" to the place it
-** is supposed to be pointing.  If the row was deleted out from under the
-** cursor, set the cursor to point to a NULL row.
-*/
-static int SQLITE_NOINLINE handleMovedCursor(VdbeCursor *p){
-  int isDifferentRow, rc;
-  assert( p->eCurType==CURTYPE_BTREE );
-  assert( p->uc.pCursor!=0 );
-  assert( tdsqlite3BtreeCursorHasMoved(p->uc.pCursor) );
-  rc = tdsqlite3BtreeCursorRestore(p->uc.pCursor, &isDifferentRow);
-  p->cacheStatus = CACHE_STALE;
-  if( isDifferentRow ) p->nullRow = 1;
-  return rc;
-}
-
-/*
-** Check to ensure that the cursor is valid.  Restore the cursor
-** if need be.  Return any I/O error from the restore operation.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeCursorRestore(VdbeCursor *p){
-  assert( p->eCurType==CURTYPE_BTREE );
-  if( tdsqlite3BtreeCursorHasMoved(p->uc.pCursor) ){
-    return handleMovedCursor(p);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Make sure the cursor p is ready to read or write the row to which it
-** was last positioned.  Return an error code if an OOM fault or I/O error
-** prevents us from positioning the cursor to its correct position.
-**
-** If a MoveTo operation is pending on the given cursor, then do that
-** MoveTo now.  If no move is pending, check to see if the row has been
-** deleted out from under the cursor and if it has, mark the row as
-** a NULL row.
-**
-** If the cursor is already pointing to the correct row and that row has
-** not been deleted out from under the cursor, then this routine is a no-op.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeCursorMoveto(VdbeCursor **pp, int *piCol){
-  VdbeCursor *p = *pp;
-  assert( p->eCurType==CURTYPE_BTREE || p->eCurType==CURTYPE_PSEUDO );
-  if( p->deferredMoveto ){
-    int iMap;
-    if( p->aAltMap && (iMap = p->aAltMap[1+*piCol])>0 ){
-      *pp = p->pAltCursor;
-      *piCol = iMap - 1;
-      return SQLITE_OK;
-    }
-    return tdsqlite3VdbeFinishMoveto(p);
-  }
-  if( tdsqlite3BtreeCursorHasMoved(p->uc.pCursor) ){
-    return handleMovedCursor(p);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** The following functions:
-**
-** tdsqlite3VdbeSerialType()
-** tdsqlite3VdbeSerialTypeLen()
-** tdsqlite3VdbeSerialLen()
-** tdsqlite3VdbeSerialPut()
-** tdsqlite3VdbeSerialGet()
-**
-** encapsulate the code that serializes values for storage in SQLite
-** data and index records. Each serialized value consists of a
-** 'serial-type' and a blob of data. The serial type is an 8-byte unsigned
-** integer, stored as a varint.
-**
-** In an SQLite index record, the serial type is stored directly before
-** the blob of data that it corresponds to. In a table record, all serial
-** types are stored at the start of the record, and the blobs of data at
-** the end. Hence these functions allow the caller to handle the
-** serial-type and data blob separately.
-**
-** The following table describes the various storage classes for data:
-**
-**   serial type        bytes of data      type
-**   --------------     ---------------    ---------------
-**      0                     0            NULL
-**      1                     1            signed integer
-**      2                     2            signed integer
-**      3                     3            signed integer
-**      4                     4            signed integer
-**      5                     6            signed integer
-**      6                     8            signed integer
-**      7                     8            IEEE float
-**      8                     0            Integer constant 0
-**      9                     0            Integer constant 1
-**     10,11                               reserved for expansion
-**    N>=12 and even       (N-12)/2        BLOB
-**    N>=13 and odd        (N-13)/2        text
-**
-** The 8 and 9 types were added in 3.3.0, file format 4.  Prior versions
-** of SQLite will not understand those serial types.
-*/
-
-#if 0 /* Inlined into the OP_MakeRecord opcode */
-/*
-** Return the serial-type for the value stored in pMem.
-**
-** This routine might convert a large MEM_IntReal value into MEM_Real.
-**
-** 2019-07-11:  The primary user of this subroutine was the OP_MakeRecord
-** opcode in the byte-code engine.  But by moving this routine in-line, we
-** can omit some redundant tests and make that opcode a lot faster.  So
-** this routine is now only used by the STAT3 logic and STAT3 support has
-** ended.  The code is kept here for historical reference only.
-*/
-SQLITE_PRIVATE u32 tdsqlite3VdbeSerialType(Mem *pMem, int file_format, u32 *pLen){
-  int flags = pMem->flags;
-  u32 n;
-
-  assert( pLen!=0 );
-  if( flags&MEM_Null ){
-    *pLen = 0;
-    return 0;
-  }
-  if( flags&(MEM_Int|MEM_IntReal) ){
-    /* Figure out whether to use 1, 2, 4, 6 or 8 bytes. */
-#   define MAX_6BYTE ((((i64)0x00008000)<<32)-1)
-    i64 i = pMem->u.i;
-    u64 u;
-    testcase( flags & MEM_Int );
-    testcase( flags & MEM_IntReal );
-    if( i<0 ){
-      u = ~i;
-    }else{
-      u = i;
-    }
-    if( u<=127 ){
-      if( (i&1)==i && file_format>=4 ){
-        *pLen = 0;
-        return 8+(u32)u;
-      }else{
-        *pLen = 1;
-        return 1;
-      }
-    }
-    if( u<=32767 ){ *pLen = 2; return 2; }
-    if( u<=8388607 ){ *pLen = 3; return 3; }
-    if( u<=2147483647 ){ *pLen = 4; return 4; }
-    if( u<=MAX_6BYTE ){ *pLen = 6; return 5; }
-    *pLen = 8;
-    if( flags&MEM_IntReal ){
-      /* If the value is IntReal and is going to take up 8 bytes to store
-      ** as an integer, then we might as well make it an 8-byte floating
-      ** point value */
-      pMem->u.r = (double)pMem->u.i;
-      pMem->flags &= ~MEM_IntReal;
-      pMem->flags |= MEM_Real;
-      return 7;
-    }
-    return 6;
-  }
-  if( flags&MEM_Real ){
-    *pLen = 8;
-    return 7;
-  }
-  assert( pMem->db->mallocFailed || flags&(MEM_Str|MEM_Blob) );
-  assert( pMem->n>=0 );
-  n = (u32)pMem->n;
-  if( flags & MEM_Zero ){
-    n += pMem->u.nZero;
-  }
-  *pLen = n;
-  return ((n*2) + 12 + ((flags&MEM_Str)!=0));
-}
-#endif /* inlined into OP_MakeRecord */
-
-/*
-** The sizes for serial types less than 128
-*/
-static const u8 tdsqlite3SmallTypeSizes[] = {
-        /*  0   1   2   3   4   5   6   7   8   9 */   
-/*   0 */   0,  1,  2,  3,  4,  6,  8,  8,  0,  0,
-/*  10 */   0,  0,  0,  0,  1,  1,  2,  2,  3,  3,
-/*  20 */   4,  4,  5,  5,  6,  6,  7,  7,  8,  8,
-/*  30 */   9,  9, 10, 10, 11, 11, 12, 12, 13, 13,
-/*  40 */  14, 14, 15, 15, 16, 16, 17, 17, 18, 18,
-/*  50 */  19, 19, 20, 20, 21, 21, 22, 22, 23, 23,
-/*  60 */  24, 24, 25, 25, 26, 26, 27, 27, 28, 28,
-/*  70 */  29, 29, 30, 30, 31, 31, 32, 32, 33, 33,
-/*  80 */  34, 34, 35, 35, 36, 36, 37, 37, 38, 38,
-/*  90 */  39, 39, 40, 40, 41, 41, 42, 42, 43, 43,
-/* 100 */  44, 44, 45, 45, 46, 46, 47, 47, 48, 48,
-/* 110 */  49, 49, 50, 50, 51, 51, 52, 52, 53, 53,
-/* 120 */  54, 54, 55, 55, 56, 56, 57, 57
-};
-
-/*
-** Return the length of the data corresponding to the supplied serial-type.
-*/
-SQLITE_PRIVATE u32 tdsqlite3VdbeSerialTypeLen(u32 serial_type){
-  if( serial_type>=128 ){
-    return (serial_type-12)/2;
-  }else{
-    assert( serial_type<12 
-            || tdsqlite3SmallTypeSizes[serial_type]==(serial_type - 12)/2 );
-    return tdsqlite3SmallTypeSizes[serial_type];
-  }
-}
-SQLITE_PRIVATE u8 tdsqlite3VdbeOneByteSerialTypeLen(u8 serial_type){
-  assert( serial_type<128 );
-  return tdsqlite3SmallTypeSizes[serial_type];  
-}
-
-/*
-** If we are on an architecture with mixed-endian floating 
-** points (ex: ARM7) then swap the lower 4 bytes with the 
-** upper 4 bytes.  Return the result.
-**
-** For most architectures, this is a no-op.
-**
-** (later):  It is reported to me that the mixed-endian problem
-** on ARM7 is an issue with GCC, not with the ARM7 chip.  It seems
-** that early versions of GCC stored the two words of a 64-bit
-** float in the wrong order.  And that error has been propagated
-** ever since.  The blame is not necessarily with GCC, though.
-** GCC might have just copying the problem from a prior compiler.
-** I am also told that newer versions of GCC that follow a different
-** ABI get the byte order right.
-**
-** Developers using SQLite on an ARM7 should compile and run their
-** application using -DSQLITE_DEBUG=1 at least once.  With DEBUG
-** enabled, some asserts below will ensure that the byte order of
-** floating point values is correct.
-**
-** (2007-08-30)  Frank van Vugt has studied this problem closely
-** and has send his findings to the SQLite developers.  Frank
-** writes that some Linux kernels offer floating point hardware
-** emulation that uses only 32-bit mantissas instead of a full 
-** 48-bits as required by the IEEE standard.  (This is the
-** CONFIG_FPE_FASTFPE option.)  On such systems, floating point
-** byte swapping becomes very complicated.  To avoid problems,
-** the necessary byte swapping is carried out using a 64-bit integer
-** rather than a 64-bit float.  Frank assures us that the code here
-** works for him.  We, the developers, have no way to independently
-** verify this, but Frank seems to know what he is talking about
-** so we trust him.
-*/
-#ifdef SQLITE_MIXED_ENDIAN_64BIT_FLOAT
-static u64 floatSwap(u64 in){
-  union {
-    u64 r;
-    u32 i[2];
-  } u;
-  u32 t;
-
-  u.r = in;
-  t = u.i[0];
-  u.i[0] = u.i[1];
-  u.i[1] = t;
-  return u.r;
-}
-# define swapMixedEndianFloat(X)  X = floatSwap(X)
-#else
-# define swapMixedEndianFloat(X)
-#endif
-
-/*
-** Write the serialized data blob for the value stored in pMem into 
-** buf. It is assumed that the caller has allocated sufficient space.
-** Return the number of bytes written.
-**
-** nBuf is the amount of space left in buf[].  The caller is responsible
-** for allocating enough space to buf[] to hold the entire field, exclusive
-** of the pMem->u.nZero bytes for a MEM_Zero value.
-**
-** Return the number of bytes actually written into buf[].  The number
-** of bytes in the zero-filled tail is included in the return value only
-** if those bytes were zeroed in buf[].
-*/ 
-SQLITE_PRIVATE u32 tdsqlite3VdbeSerialPut(u8 *buf, Mem *pMem, u32 serial_type){
-  u32 len;
-
-  /* Integer and Real */
-  if( serial_type<=7 && serial_type>0 ){
-    u64 v;
-    u32 i;
-    if( serial_type==7 ){
-      assert( sizeof(v)==sizeof(pMem->u.r) );
-      memcpy(&v, &pMem->u.r, sizeof(v));
-      swapMixedEndianFloat(v);
-    }else{
-      v = pMem->u.i;
-    }
-    len = i = tdsqlite3SmallTypeSizes[serial_type];
-    assert( i>0 );
-    do{
-      buf[--i] = (u8)(v&0xFF);
-      v >>= 8;
-    }while( i );
-    return len;
-  }
-
-  /* String or blob */
-  if( serial_type>=12 ){
-    assert( pMem->n + ((pMem->flags & MEM_Zero)?pMem->u.nZero:0)
-             == (int)tdsqlite3VdbeSerialTypeLen(serial_type) );
-    len = pMem->n;
-    if( len>0 ) memcpy(buf, pMem->z, len);
-    return len;
-  }
-
-  /* NULL or constants 0 or 1 */
-  return 0;
-}
-
-/* Input "x" is a sequence of unsigned characters that represent a
-** big-endian integer.  Return the equivalent native integer
-*/
-#define ONE_BYTE_INT(x)    ((i8)(x)[0])
-#define TWO_BYTE_INT(x)    (256*(i8)((x)[0])|(x)[1])
-#define THREE_BYTE_INT(x)  (65536*(i8)((x)[0])|((x)[1]<<8)|(x)[2])
-#define FOUR_BYTE_UINT(x)  (((u32)(x)[0]<<24)|((x)[1]<<16)|((x)[2]<<8)|(x)[3])
-#define FOUR_BYTE_INT(x) (16777216*(i8)((x)[0])|((x)[1]<<16)|((x)[2]<<8)|(x)[3])
-
-/*
-** Deserialize the data blob pointed to by buf as serial type serial_type
-** and store the result in pMem.  Return the number of bytes read.
-**
-** This function is implemented as two separate routines for performance.
-** The few cases that require local variables are broken out into a separate
-** routine so that in most cases the overhead of moving the stack pointer
-** is avoided.
-*/ 
-static u32 serialGet(
-  const unsigned char *buf,     /* Buffer to deserialize from */
-  u32 serial_type,              /* Serial type to deserialize */
-  Mem *pMem                     /* Memory cell to write value into */
-){
-  u64 x = FOUR_BYTE_UINT(buf);
-  u32 y = FOUR_BYTE_UINT(buf+4);
-  x = (x<<32) + y;
-  if( serial_type==6 ){
-    /* EVIDENCE-OF: R-29851-52272 Value is a big-endian 64-bit
-    ** twos-complement integer. */
-    pMem->u.i = *(i64*)&x;
-    pMem->flags = MEM_Int;
-    testcase( pMem->u.i<0 );
-  }else{
-    /* EVIDENCE-OF: R-57343-49114 Value is a big-endian IEEE 754-2008 64-bit
-    ** floating point number. */
-#if !defined(NDEBUG) && !defined(SQLITE_OMIT_FLOATING_POINT)
-    /* Verify that integers and floating point values use the same
-    ** byte order.  Or, that if SQLITE_MIXED_ENDIAN_64BIT_FLOAT is
-    ** defined that 64-bit floating point values really are mixed
-    ** endian.
-    */
-    static const u64 t1 = ((u64)0x3ff00000)<<32;
-    static const double r1 = 1.0;
-    u64 t2 = t1;
-    swapMixedEndianFloat(t2);
-    assert( sizeof(r1)==sizeof(t2) && memcmp(&r1, &t2, sizeof(r1))==0 );
-#endif
-    assert( sizeof(x)==8 && sizeof(pMem->u.r)==8 );
-    swapMixedEndianFloat(x);
-    memcpy(&pMem->u.r, &x, sizeof(x));
-    pMem->flags = IsNaN(x) ? MEM_Null : MEM_Real;
-  }
-  return 8;
-}
-SQLITE_PRIVATE u32 tdsqlite3VdbeSerialGet(
-  const unsigned char *buf,     /* Buffer to deserialize from */
-  u32 serial_type,              /* Serial type to deserialize */
-  Mem *pMem                     /* Memory cell to write value into */
-){
-  switch( serial_type ){
-    case 10: { /* Internal use only: NULL with virtual table
-               ** UPDATE no-change flag set */
-      pMem->flags = MEM_Null|MEM_Zero;
-      pMem->n = 0;
-      pMem->u.nZero = 0;
-      break;
-    }
-    case 11:   /* Reserved for future use */
-    case 0: {  /* Null */
-      /* EVIDENCE-OF: R-24078-09375 Value is a NULL. */
-      pMem->flags = MEM_Null;
-      break;
-    }
-    case 1: {
-      /* EVIDENCE-OF: R-44885-25196 Value is an 8-bit twos-complement
-      ** integer. */
-      pMem->u.i = ONE_BYTE_INT(buf);
-      pMem->flags = MEM_Int;
-      testcase( pMem->u.i<0 );
-      return 1;
-    }
-    case 2: { /* 2-byte signed integer */
-      /* EVIDENCE-OF: R-49794-35026 Value is a big-endian 16-bit
-      ** twos-complement integer. */
-      pMem->u.i = TWO_BYTE_INT(buf);
-      pMem->flags = MEM_Int;
-      testcase( pMem->u.i<0 );
-      return 2;
-    }
-    case 3: { /* 3-byte signed integer */
-      /* EVIDENCE-OF: R-37839-54301 Value is a big-endian 24-bit
-      ** twos-complement integer. */
-      pMem->u.i = THREE_BYTE_INT(buf);
-      pMem->flags = MEM_Int;
-      testcase( pMem->u.i<0 );
-      return 3;
-    }
-    case 4: { /* 4-byte signed integer */
-      /* EVIDENCE-OF: R-01849-26079 Value is a big-endian 32-bit
-      ** twos-complement integer. */
-      pMem->u.i = FOUR_BYTE_INT(buf);
-#ifdef __HP_cc 
-      /* Work around a sign-extension bug in the HP compiler for HP/UX */
-      if( buf[0]&0x80 ) pMem->u.i |= 0xffffffff80000000LL;
-#endif
-      pMem->flags = MEM_Int;
-      testcase( pMem->u.i<0 );
-      return 4;
-    }
-    case 5: { /* 6-byte signed integer */
-      /* EVIDENCE-OF: R-50385-09674 Value is a big-endian 48-bit
-      ** twos-complement integer. */
-      pMem->u.i = FOUR_BYTE_UINT(buf+2) + (((i64)1)<<32)*TWO_BYTE_INT(buf);
-      pMem->flags = MEM_Int;
-      testcase( pMem->u.i<0 );
-      return 6;
-    }
-    case 6:   /* 8-byte signed integer */
-    case 7: { /* IEEE floating point */
-      /* These use local variables, so do them in a separate routine
-      ** to avoid having to move the frame pointer in the common case */
-      return serialGet(buf,serial_type,pMem);
-    }
-    case 8:    /* Integer 0 */
-    case 9: {  /* Integer 1 */
-      /* EVIDENCE-OF: R-12976-22893 Value is the integer 0. */
-      /* EVIDENCE-OF: R-18143-12121 Value is the integer 1. */
-      pMem->u.i = serial_type-8;
-      pMem->flags = MEM_Int;
-      return 0;
-    }
-    default: {
-      /* EVIDENCE-OF: R-14606-31564 Value is a BLOB that is (N-12)/2 bytes in
-      ** length.
-      ** EVIDENCE-OF: R-28401-00140 Value is a string in the text encoding and
-      ** (N-13)/2 bytes in length. */
-      static const u16 aFlag[] = { MEM_Blob|MEM_Ephem, MEM_Str|MEM_Ephem };
-      pMem->z = (char *)buf;
-      pMem->n = (serial_type-12)/2;
-      pMem->flags = aFlag[serial_type&1];
-      return pMem->n;
-    }
-  }
-  return 0;
-}
-/*
-** This routine is used to allocate sufficient space for an UnpackedRecord
-** structure large enough to be used with tdsqlite3VdbeRecordUnpack() if
-** the first argument is a pointer to KeyInfo structure pKeyInfo.
-**
-** The space is either allocated using tdsqlite3DbMallocRaw() or from within
-** the unaligned buffer passed via the second and third arguments (presumably
-** stack space). If the former, then *ppFree is set to a pointer that should
-** be eventually freed by the caller using tdsqlite3DbFree(). Or, if the 
-** allocation comes from the pSpace/szSpace buffer, *ppFree is set to NULL
-** before returning.
-**
-** If an OOM error occurs, NULL is returned.
-*/
-SQLITE_PRIVATE UnpackedRecord *tdsqlite3VdbeAllocUnpackedRecord(
-  KeyInfo *pKeyInfo               /* Description of the record */
-){
-  UnpackedRecord *p;              /* Unpacked record to return */
-  int nByte;                      /* Number of bytes required for *p */
-  nByte = ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*(pKeyInfo->nKeyField+1);
-  p = (UnpackedRecord *)tdsqlite3DbMallocRaw(pKeyInfo->db, nByte);
-  if( !p ) return 0;
-  p->aMem = (Mem*)&((char*)p)[ROUND8(sizeof(UnpackedRecord))];
-  assert( pKeyInfo->aSortFlags!=0 );
-  p->pKeyInfo = pKeyInfo;
-  p->nField = pKeyInfo->nKeyField + 1;
-  return p;
-}
-
-/*
-** Given the nKey-byte encoding of a record in pKey[], populate the 
-** UnpackedRecord structure indicated by the fourth argument with the
-** contents of the decoded record.
-*/ 
-SQLITE_PRIVATE void tdsqlite3VdbeRecordUnpack(
-  KeyInfo *pKeyInfo,     /* Information about the record format */
-  int nKey,              /* Size of the binary record */
-  const void *pKey,      /* The binary record */
-  UnpackedRecord *p      /* Populate this structure before returning. */
-){
-  const unsigned char *aKey = (const unsigned char *)pKey;
-  u32 d; 
-  u32 idx;                        /* Offset in aKey[] to read from */
-  u16 u;                          /* Unsigned loop counter */
-  u32 szHdr;
-  Mem *pMem = p->aMem;
-
-  p->default_rc = 0;
-  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
-  idx = getVarint32(aKey, szHdr);
-  d = szHdr;
-  u = 0;
-  while( idx<szHdr && d<=(u32)nKey ){
-    u32 serial_type;
-
-    idx += getVarint32(&aKey[idx], serial_type);
-    pMem->enc = pKeyInfo->enc;
-    pMem->db = pKeyInfo->db;
-    /* pMem->flags = 0; // tdsqlite3VdbeSerialGet() will set this for us */
-    pMem->szMalloc = 0;
-    pMem->z = 0;
-    d += tdsqlite3VdbeSerialGet(&aKey[d], serial_type, pMem);
-    pMem++;
-    if( (++u)>=p->nField ) break;
-  }
-  if( d>(u32)nKey && u ){
-    assert( CORRUPT_DB );
-    /* In a corrupt record entry, the last pMem might have been set up using 
-    ** uninitialized memory. Overwrite its value with NULL, to prevent
-    ** warnings from MSAN. */
-    tdsqlite3VdbeMemSetNull(pMem-1);
-  }
-  assert( u<=pKeyInfo->nKeyField + 1 );
-  p->nField = u;
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** This function compares two index or table record keys in the same way
-** as the tdsqlite3VdbeRecordCompare() routine. Unlike VdbeRecordCompare(),
-** this function deserializes and compares values using the
-** tdsqlite3VdbeSerialGet() and tdsqlite3MemCompare() functions. It is used
-** in assert() statements to ensure that the optimized code in
-** tdsqlite3VdbeRecordCompare() returns results with these two primitives.
-**
-** Return true if the result of comparison is equivalent to desiredResult.
-** Return false if there is a disagreement.
-*/
-static int vdbeRecordCompareDebug(
-  int nKey1, const void *pKey1, /* Left key */
-  const UnpackedRecord *pPKey2, /* Right key */
-  int desiredResult             /* Correct answer */
-){
-  u32 d1;            /* Offset into aKey[] of next data element */
-  u32 idx1;          /* Offset into aKey[] of next header element */
-  u32 szHdr1;        /* Number of bytes in header */
-  int i = 0;
-  int rc = 0;
-  const unsigned char *aKey1 = (const unsigned char *)pKey1;
-  KeyInfo *pKeyInfo;
-  Mem mem1;
-
-  pKeyInfo = pPKey2->pKeyInfo;
-  if( pKeyInfo->db==0 ) return 1;
-  mem1.enc = pKeyInfo->enc;
-  mem1.db = pKeyInfo->db;
-  /* mem1.flags = 0;  // Will be initialized by tdsqlite3VdbeSerialGet() */
-  VVA_ONLY( mem1.szMalloc = 0; ) /* Only needed by assert() statements */
-
-  /* Compilers may complain that mem1.u.i is potentially uninitialized.
-  ** We could initialize it, as shown here, to silence those complaints.
-  ** But in fact, mem1.u.i will never actually be used uninitialized, and doing 
-  ** the unnecessary initialization has a measurable negative performance
-  ** impact, since this routine is a very high runner.  And so, we choose
-  ** to ignore the compiler warnings and leave this variable uninitialized.
-  */
-  /*  mem1.u.i = 0;  // not needed, here to silence compiler warning */
-  
-  idx1 = getVarint32(aKey1, szHdr1);
-  if( szHdr1>98307 ) return SQLITE_CORRUPT;
-  d1 = szHdr1;
-  assert( pKeyInfo->nAllField>=pPKey2->nField || CORRUPT_DB );
-  assert( pKeyInfo->aSortFlags!=0 );
-  assert( pKeyInfo->nKeyField>0 );
-  assert( idx1<=szHdr1 || CORRUPT_DB );
-  do{
-    u32 serial_type1;
-
-    /* Read the serial types for the next element in each key. */
-    idx1 += getVarint32( aKey1+idx1, serial_type1 );
-
-    /* Verify that there is enough key space remaining to avoid
-    ** a buffer overread.  The "d1+serial_type1+2" subexpression will
-    ** always be greater than or equal to the amount of required key space.
-    ** Use that approximation to avoid the more expensive call to
-    ** tdsqlite3VdbeSerialTypeLen() in the common case.
-    */
-    if( d1+(u64)serial_type1+2>(u64)nKey1
-     && d1+(u64)tdsqlite3VdbeSerialTypeLen(serial_type1)>(u64)nKey1 
-    ){
-      break;
-    }
-
-    /* Extract the values to be compared.
-    */
-    d1 += tdsqlite3VdbeSerialGet(&aKey1[d1], serial_type1, &mem1);
-
-    /* Do the comparison
-    */
-    rc = tdsqlite3MemCompare(&mem1, &pPKey2->aMem[i],
-                           pKeyInfo->nAllField>i ? pKeyInfo->aColl[i] : 0);
-    if( rc!=0 ){
-      assert( mem1.szMalloc==0 );  /* See comment below */
-      if( (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_BIGNULL)
-       && ((mem1.flags & MEM_Null) || (pPKey2->aMem[i].flags & MEM_Null)) 
-      ){
-        rc = -rc;
-      }
-      if( pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_DESC ){
-        rc = -rc;  /* Invert the result for DESC sort order. */
-      }
-      goto debugCompareEnd;
-    }
-    i++;
-  }while( idx1<szHdr1 && i<pPKey2->nField );
-
-  /* No memory allocation is ever used on mem1.  Prove this using
-  ** the following assert().  If the assert() fails, it indicates a
-  ** memory leak and a need to call tdsqlite3VdbeMemRelease(&mem1).
-  */
-  assert( mem1.szMalloc==0 );
-
-  /* rc==0 here means that one of the keys ran out of fields and
-  ** all the fields up to that point were equal. Return the default_rc
-  ** value.  */
-  rc = pPKey2->default_rc;
-
-debugCompareEnd:
-  if( desiredResult==0 && rc==0 ) return 1;
-  if( desiredResult<0 && rc<0 ) return 1;
-  if( desiredResult>0 && rc>0 ) return 1;
-  if( CORRUPT_DB ) return 1;
-  if( pKeyInfo->db->mallocFailed ) return 1;
-  return 0;
-}
-#endif
-
-#ifdef SQLITE_DEBUG
-/*
-** Count the number of fields (a.k.a. columns) in the record given by
-** pKey,nKey.  The verify that this count is less than or equal to the
-** limit given by pKeyInfo->nAllField.
-**
-** If this constraint is not satisfied, it means that the high-speed
-** vdbeRecordCompareInt() and vdbeRecordCompareString() routines will
-** not work correctly.  If this assert() ever fires, it probably means
-** that the KeyInfo.nKeyField or KeyInfo.nAllField values were computed
-** incorrectly.
-*/
-static void vdbeAssertFieldCountWithinLimits(
-  int nKey, const void *pKey,   /* The record to verify */ 
-  const KeyInfo *pKeyInfo       /* Compare size with this KeyInfo */
-){
-  int nField = 0;
-  u32 szHdr;
-  u32 idx;
-  u32 notUsed;
-  const unsigned char *aKey = (const unsigned char*)pKey;
-
-  if( CORRUPT_DB ) return;
-  idx = getVarint32(aKey, szHdr);
-  assert( nKey>=0 );
-  assert( szHdr<=(u32)nKey );
-  while( idx<szHdr ){
-    idx += getVarint32(aKey+idx, notUsed);
-    nField++;
-  }
-  assert( nField <= pKeyInfo->nAllField );
-}
-#else
-# define vdbeAssertFieldCountWithinLimits(A,B,C)
-#endif
-
-/*
-** Both *pMem1 and *pMem2 contain string values. Compare the two values
-** using the collation sequence pColl. As usual, return a negative , zero
-** or positive value if *pMem1 is less than, equal to or greater than 
-** *pMem2, respectively. Similar in spirit to "rc = (*pMem1) - (*pMem2);".
-*/
-static int vdbeCompareMemString(
-  const Mem *pMem1,
-  const Mem *pMem2,
-  const CollSeq *pColl,
-  u8 *prcErr                      /* If an OOM occurs, set to SQLITE_NOMEM */
-){
-  if( pMem1->enc==pColl->enc ){
-    /* The strings are already in the correct encoding.  Call the
-     ** comparison function directly */
-    return pColl->xCmp(pColl->pUser,pMem1->n,pMem1->z,pMem2->n,pMem2->z);
-  }else{
-    int rc;
-    const void *v1, *v2;
-    Mem c1;
-    Mem c2;
-    tdsqlite3VdbeMemInit(&c1, pMem1->db, MEM_Null);
-    tdsqlite3VdbeMemInit(&c2, pMem1->db, MEM_Null);
-    tdsqlite3VdbeMemShallowCopy(&c1, pMem1, MEM_Ephem);
-    tdsqlite3VdbeMemShallowCopy(&c2, pMem2, MEM_Ephem);
-    v1 = tdsqlite3ValueText((tdsqlite3_value*)&c1, pColl->enc);
-    v2 = tdsqlite3ValueText((tdsqlite3_value*)&c2, pColl->enc);
-    if( (v1==0 || v2==0) ){
-      if( prcErr ) *prcErr = SQLITE_NOMEM_BKPT;
-      rc = 0;
-    }else{
-      rc = pColl->xCmp(pColl->pUser, c1.n, v1, c2.n, v2);
-    }
-    tdsqlite3VdbeMemRelease(&c1);
-    tdsqlite3VdbeMemRelease(&c2);
-    return rc;
-  }
-}
-
-/*
-** The input pBlob is guaranteed to be a Blob that is not marked
-** with MEM_Zero.  Return true if it could be a zero-blob.
-*/
-static int isAllZero(const char *z, int n){
-  int i;
-  for(i=0; i<n; i++){
-    if( z[i] ) return 0;
-  }
-  return 1;
-}
-
-/*
-** Compare two blobs.  Return negative, zero, or positive if the first
-** is less than, equal to, or greater than the second, respectively.
-** If one blob is a prefix of the other, then the shorter is the lessor.
-*/
-SQLITE_PRIVATE SQLITE_NOINLINE int tdsqlite3BlobCompare(const Mem *pB1, const Mem *pB2){
-  int c;
-  int n1 = pB1->n;
-  int n2 = pB2->n;
-
-  /* It is possible to have a Blob value that has some non-zero content
-  ** followed by zero content.  But that only comes up for Blobs formed
-  ** by the OP_MakeRecord opcode, and such Blobs never get passed into
-  ** tdsqlite3MemCompare(). */
-  assert( (pB1->flags & MEM_Zero)==0 || n1==0 );
-  assert( (pB2->flags & MEM_Zero)==0 || n2==0 );
-
-  if( (pB1->flags|pB2->flags) & MEM_Zero ){
-    if( pB1->flags & pB2->flags & MEM_Zero ){
-      return pB1->u.nZero - pB2->u.nZero;
-    }else if( pB1->flags & MEM_Zero ){
-      if( !isAllZero(pB2->z, pB2->n) ) return -1;
-      return pB1->u.nZero - n2;
-    }else{
-      if( !isAllZero(pB1->z, pB1->n) ) return +1;
-      return n1 - pB2->u.nZero;
-    }
-  }
-  c = memcmp(pB1->z, pB2->z, n1>n2 ? n2 : n1);
-  if( c ) return c;
-  return n1 - n2;
-}
-
-/*
-** Do a comparison between a 64-bit signed integer and a 64-bit floating-point
-** number.  Return negative, zero, or positive if the first (i64) is less than,
-** equal to, or greater than the second (double).
-*/
-static int tdsqlite3IntFloatCompare(i64 i, double r){
-  if( sizeof(LONGDOUBLE_TYPE)>8 ){
-    LONGDOUBLE_TYPE x = (LONGDOUBLE_TYPE)i;
-    if( x<r ) return -1;
-    if( x>r ) return +1;
-    return 0;
-  }else{
-    i64 y;
-    double s;
-    if( r<-9223372036854775808.0 ) return +1;
-    if( r>=9223372036854775808.0 ) return -1;
-    y = (i64)r;
-    if( i<y ) return -1;
-    if( i>y ) return +1;
-    s = (double)i;
-    if( s<r ) return -1;
-    if( s>r ) return +1;
-    return 0;
-  }
-}
-
-/*
-** Compare the values contained by the two memory cells, returning
-** negative, zero or positive if pMem1 is less than, equal to, or greater
-** than pMem2. Sorting order is NULL's first, followed by numbers (integers
-** and reals) sorted numerically, followed by text ordered by the collating
-** sequence pColl and finally blob's ordered by memcmp().
-**
-** Two NULL values are considered equal by this function.
-*/
-SQLITE_PRIVATE int tdsqlite3MemCompare(const Mem *pMem1, const Mem *pMem2, const CollSeq *pColl){
-  int f1, f2;
-  int combined_flags;
-
-  f1 = pMem1->flags;
-  f2 = pMem2->flags;
-  combined_flags = f1|f2;
-  assert( !tdsqlite3VdbeMemIsRowSet(pMem1) && !tdsqlite3VdbeMemIsRowSet(pMem2) );
- 
-  /* If one value is NULL, it is less than the other. If both values
-  ** are NULL, return 0.
-  */
-  if( combined_flags&MEM_Null ){
-    return (f2&MEM_Null) - (f1&MEM_Null);
-  }
-
-  /* At least one of the two values is a number
-  */
-  if( combined_flags&(MEM_Int|MEM_Real|MEM_IntReal) ){
-    testcase( combined_flags & MEM_Int );
-    testcase( combined_flags & MEM_Real );
-    testcase( combined_flags & MEM_IntReal );
-    if( (f1 & f2 & (MEM_Int|MEM_IntReal))!=0 ){
-      testcase( f1 & f2 & MEM_Int );
-      testcase( f1 & f2 & MEM_IntReal );
-      if( pMem1->u.i < pMem2->u.i ) return -1;
-      if( pMem1->u.i > pMem2->u.i ) return +1;
-      return 0;
-    }
-    if( (f1 & f2 & MEM_Real)!=0 ){
-      if( pMem1->u.r < pMem2->u.r ) return -1;
-      if( pMem1->u.r > pMem2->u.r ) return +1;
-      return 0;
-    }
-    if( (f1&(MEM_Int|MEM_IntReal))!=0 ){
-      testcase( f1 & MEM_Int );
-      testcase( f1 & MEM_IntReal );
-      if( (f2&MEM_Real)!=0 ){
-        return tdsqlite3IntFloatCompare(pMem1->u.i, pMem2->u.r);
-      }else if( (f2&(MEM_Int|MEM_IntReal))!=0 ){
-        if( pMem1->u.i < pMem2->u.i ) return -1;
-        if( pMem1->u.i > pMem2->u.i ) return +1;
-        return 0;
-      }else{
-        return -1;
-      }
-    }
-    if( (f1&MEM_Real)!=0 ){
-      if( (f2&(MEM_Int|MEM_IntReal))!=0 ){
-        testcase( f2 & MEM_Int );
-        testcase( f2 & MEM_IntReal );
-        return -tdsqlite3IntFloatCompare(pMem2->u.i, pMem1->u.r);
-      }else{
-        return -1;
-      }
-    }
-    return +1;
-  }
-
-  /* If one value is a string and the other is a blob, the string is less.
-  ** If both are strings, compare using the collating functions.
-  */
-  if( combined_flags&MEM_Str ){
-    if( (f1 & MEM_Str)==0 ){
-      return 1;
-    }
-    if( (f2 & MEM_Str)==0 ){
-      return -1;
-    }
-
-    assert( pMem1->enc==pMem2->enc || pMem1->db->mallocFailed );
-    assert( pMem1->enc==SQLITE_UTF8 || 
-            pMem1->enc==SQLITE_UTF16LE || pMem1->enc==SQLITE_UTF16BE );
-
-    /* The collation sequence must be defined at this point, even if
-    ** the user deletes the collation sequence after the vdbe program is
-    ** compiled (this was not always the case).
-    */
-    assert( !pColl || pColl->xCmp );
-
-    if( pColl ){
-      return vdbeCompareMemString(pMem1, pMem2, pColl, 0);
-    }
-    /* If a NULL pointer was passed as the collate function, fall through
-    ** to the blob case and use memcmp().  */
-  }
- 
-  /* Both values must be blobs.  Compare using memcmp().  */
-  return tdsqlite3BlobCompare(pMem1, pMem2);
-}
-
-
-/*
-** The first argument passed to this function is a serial-type that
-** corresponds to an integer - all values between 1 and 9 inclusive 
-** except 7. The second points to a buffer containing an integer value
-** serialized according to serial_type. This function deserializes
-** and returns the value.
-*/
-static i64 vdbeRecordDecodeInt(u32 serial_type, const u8 *aKey){
-  u32 y;
-  assert( CORRUPT_DB || (serial_type>=1 && serial_type<=9 && serial_type!=7) );
-  switch( serial_type ){
-    case 0:
-    case 1:
-      testcase( aKey[0]&0x80 );
-      return ONE_BYTE_INT(aKey);
-    case 2:
-      testcase( aKey[0]&0x80 );
-      return TWO_BYTE_INT(aKey);
-    case 3:
-      testcase( aKey[0]&0x80 );
-      return THREE_BYTE_INT(aKey);
-    case 4: {
-      testcase( aKey[0]&0x80 );
-      y = FOUR_BYTE_UINT(aKey);
-      return (i64)*(int*)&y;
-    }
-    case 5: {
-      testcase( aKey[0]&0x80 );
-      return FOUR_BYTE_UINT(aKey+2) + (((i64)1)<<32)*TWO_BYTE_INT(aKey);
-    }
-    case 6: {
-      u64 x = FOUR_BYTE_UINT(aKey);
-      testcase( aKey[0]&0x80 );
-      x = (x<<32) | FOUR_BYTE_UINT(aKey+4);
-      return (i64)*(i64*)&x;
-    }
-  }
-
-  return (serial_type - 8);
-}
-
-/*
-** This function compares the two table rows or index records
-** specified by {nKey1, pKey1} and pPKey2.  It returns a negative, zero
-** or positive integer if key1 is less than, equal to or 
-** greater than key2.  The {nKey1, pKey1} key must be a blob
-** created by the OP_MakeRecord opcode of the VDBE.  The pPKey2
-** key must be a parsed key such as obtained from
-** tdsqlite3VdbeParseRecord.
-**
-** If argument bSkip is non-zero, it is assumed that the caller has already
-** determined that the first fields of the keys are equal.
-**
-** Key1 and Key2 do not have to contain the same number of fields. If all 
-** fields that appear in both keys are equal, then pPKey2->default_rc is 
-** returned.
-**
-** If database corruption is discovered, set pPKey2->errCode to 
-** SQLITE_CORRUPT and return 0. If an OOM error is encountered, 
-** pPKey2->errCode is set to SQLITE_NOMEM and, if it is not NULL, the
-** malloc-failed flag set on database handle (pPKey2->pKeyInfo->db).
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeRecordCompareWithSkip(
-  int nKey1, const void *pKey1,   /* Left key */
-  UnpackedRecord *pPKey2,         /* Right key */
-  int bSkip                       /* If true, skip the first field */
-){
-  u32 d1;                         /* Offset into aKey[] of next data element */
-  int i;                          /* Index of next field to compare */
-  u32 szHdr1;                     /* Size of record header in bytes */
-  u32 idx1;                       /* Offset of first type in header */
-  int rc = 0;                     /* Return value */
-  Mem *pRhs = pPKey2->aMem;       /* Next field of pPKey2 to compare */
-  KeyInfo *pKeyInfo;
-  const unsigned char *aKey1 = (const unsigned char *)pKey1;
-  Mem mem1;
-
-  /* If bSkip is true, then the caller has already determined that the first
-  ** two elements in the keys are equal. Fix the various stack variables so
-  ** that this routine begins comparing at the second field. */
-  if( bSkip ){
-    u32 s1;
-    idx1 = 1 + getVarint32(&aKey1[1], s1);
-    szHdr1 = aKey1[0];
-    d1 = szHdr1 + tdsqlite3VdbeSerialTypeLen(s1);
-    i = 1;
-    pRhs++;
-  }else{
-    idx1 = getVarint32(aKey1, szHdr1);
-    d1 = szHdr1;
-    i = 0;
-  }
-  if( d1>(unsigned)nKey1 ){ 
-    pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
-    return 0;  /* Corruption */
-  }
-
-  VVA_ONLY( mem1.szMalloc = 0; ) /* Only needed by assert() statements */
-  assert( pPKey2->pKeyInfo->nAllField>=pPKey2->nField 
-       || CORRUPT_DB );
-  assert( pPKey2->pKeyInfo->aSortFlags!=0 );
-  assert( pPKey2->pKeyInfo->nKeyField>0 );
-  assert( idx1<=szHdr1 || CORRUPT_DB );
-  do{
-    u32 serial_type;
-
-    /* RHS is an integer */
-    if( pRhs->flags & (MEM_Int|MEM_IntReal) ){
-      testcase( pRhs->flags & MEM_Int );
-      testcase( pRhs->flags & MEM_IntReal );
-      serial_type = aKey1[idx1];
-      testcase( serial_type==12 );
-      if( serial_type>=10 ){
-        rc = +1;
-      }else if( serial_type==0 ){
-        rc = -1;
-      }else if( serial_type==7 ){
-        tdsqlite3VdbeSerialGet(&aKey1[d1], serial_type, &mem1);
-        rc = -tdsqlite3IntFloatCompare(pRhs->u.i, mem1.u.r);
-      }else{
-        i64 lhs = vdbeRecordDecodeInt(serial_type, &aKey1[d1]);
-        i64 rhs = pRhs->u.i;
-        if( lhs<rhs ){
-          rc = -1;
-        }else if( lhs>rhs ){
-          rc = +1;
-        }
-      }
-    }
-
-    /* RHS is real */
-    else if( pRhs->flags & MEM_Real ){
-      serial_type = aKey1[idx1];
-      if( serial_type>=10 ){
-        /* Serial types 12 or greater are strings and blobs (greater than
-        ** numbers). Types 10 and 11 are currently "reserved for future 
-        ** use", so it doesn't really matter what the results of comparing
-        ** them to numberic values are.  */
-        rc = +1;
-      }else if( serial_type==0 ){
-        rc = -1;
-      }else{
-        tdsqlite3VdbeSerialGet(&aKey1[d1], serial_type, &mem1);
-        if( serial_type==7 ){
-          if( mem1.u.r<pRhs->u.r ){
-            rc = -1;
-          }else if( mem1.u.r>pRhs->u.r ){
-            rc = +1;
-          }
-        }else{
-          rc = tdsqlite3IntFloatCompare(mem1.u.i, pRhs->u.r);
-        }
-      }
-    }
-
-    /* RHS is a string */
-    else if( pRhs->flags & MEM_Str ){
-      getVarint32(&aKey1[idx1], serial_type);
-      testcase( serial_type==12 );
-      if( serial_type<12 ){
-        rc = -1;
-      }else if( !(serial_type & 0x01) ){
-        rc = +1;
-      }else{
-        mem1.n = (serial_type - 12) / 2;
-        testcase( (d1+mem1.n)==(unsigned)nKey1 );
-        testcase( (d1+mem1.n+1)==(unsigned)nKey1 );
-        if( (d1+mem1.n) > (unsigned)nKey1
-         || (pKeyInfo = pPKey2->pKeyInfo)->nAllField<=i
-        ){
-          pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
-          return 0;                /* Corruption */
-        }else if( pKeyInfo->aColl[i] ){
-          mem1.enc = pKeyInfo->enc;
-          mem1.db = pKeyInfo->db;
-          mem1.flags = MEM_Str;
-          mem1.z = (char*)&aKey1[d1];
-          rc = vdbeCompareMemString(
-              &mem1, pRhs, pKeyInfo->aColl[i], &pPKey2->errCode
-          );
-        }else{
-          int nCmp = MIN(mem1.n, pRhs->n);
-          rc = memcmp(&aKey1[d1], pRhs->z, nCmp);
-          if( rc==0 ) rc = mem1.n - pRhs->n; 
-        }
-      }
-    }
-
-    /* RHS is a blob */
-    else if( pRhs->flags & MEM_Blob ){
-      assert( (pRhs->flags & MEM_Zero)==0 || pRhs->n==0 );
-      getVarint32(&aKey1[idx1], serial_type);
-      testcase( serial_type==12 );
-      if( serial_type<12 || (serial_type & 0x01) ){
-        rc = -1;
-      }else{
-        int nStr = (serial_type - 12) / 2;
-        testcase( (d1+nStr)==(unsigned)nKey1 );
-        testcase( (d1+nStr+1)==(unsigned)nKey1 );
-        if( (d1+nStr) > (unsigned)nKey1 ){
-          pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
-          return 0;                /* Corruption */
-        }else if( pRhs->flags & MEM_Zero ){
-          if( !isAllZero((const char*)&aKey1[d1],nStr) ){
-            rc = 1;
-          }else{
-            rc = nStr - pRhs->u.nZero;
-          }
-        }else{
-          int nCmp = MIN(nStr, pRhs->n);
-          rc = memcmp(&aKey1[d1], pRhs->z, nCmp);
-          if( rc==0 ) rc = nStr - pRhs->n;
-        }
-      }
-    }
-
-    /* RHS is null */
-    else{
-      serial_type = aKey1[idx1];
-      rc = (serial_type!=0);
-    }
-
-    if( rc!=0 ){
-      int sortFlags = pPKey2->pKeyInfo->aSortFlags[i];
-      if( sortFlags ){
-        if( (sortFlags & KEYINFO_ORDER_BIGNULL)==0
-         || ((sortFlags & KEYINFO_ORDER_DESC)
-           !=(serial_type==0 || (pRhs->flags&MEM_Null)))
-        ){
-          rc = -rc;
-        }
-      }
-      assert( vdbeRecordCompareDebug(nKey1, pKey1, pPKey2, rc) );
-      assert( mem1.szMalloc==0 );  /* See comment below */
-      return rc;
-    }
-
-    i++;
-    if( i==pPKey2->nField ) break;
-    pRhs++;
-    d1 += tdsqlite3VdbeSerialTypeLen(serial_type);
-    idx1 += tdsqlite3VarintLen(serial_type);
-  }while( idx1<(unsigned)szHdr1 && d1<=(unsigned)nKey1 );
-
-  /* No memory allocation is ever used on mem1.  Prove this using
-  ** the following assert().  If the assert() fails, it indicates a
-  ** memory leak and a need to call tdsqlite3VdbeMemRelease(&mem1).  */
-  assert( mem1.szMalloc==0 );
-
-  /* rc==0 here means that one or both of the keys ran out of fields and
-  ** all the fields up to that point were equal. Return the default_rc
-  ** value.  */
-  assert( CORRUPT_DB 
-       || vdbeRecordCompareDebug(nKey1, pKey1, pPKey2, pPKey2->default_rc) 
-       || pPKey2->pKeyInfo->db->mallocFailed
-  );
-  pPKey2->eqSeen = 1;
-  return pPKey2->default_rc;
-}
-SQLITE_PRIVATE int tdsqlite3VdbeRecordCompare(
-  int nKey1, const void *pKey1,   /* Left key */
-  UnpackedRecord *pPKey2          /* Right key */
-){
-  return tdsqlite3VdbeRecordCompareWithSkip(nKey1, pKey1, pPKey2, 0);
-}
-
-
-/*
-** This function is an optimized version of tdsqlite3VdbeRecordCompare() 
-** that (a) the first field of pPKey2 is an integer, and (b) the 
-** size-of-header varint at the start of (pKey1/nKey1) fits in a single
-** byte (i.e. is less than 128).
-**
-** To avoid concerns about buffer overreads, this routine is only used
-** on schemas where the maximum valid header size is 63 bytes or less.
-*/
-static int vdbeRecordCompareInt(
-  int nKey1, const void *pKey1, /* Left key */
-  UnpackedRecord *pPKey2        /* Right key */
-){
-  const u8 *aKey = &((const u8*)pKey1)[*(const u8*)pKey1 & 0x3F];
-  int serial_type = ((const u8*)pKey1)[1];
-  int res;
-  u32 y;
-  u64 x;
-  i64 v;
-  i64 lhs;
-
-  vdbeAssertFieldCountWithinLimits(nKey1, pKey1, pPKey2->pKeyInfo);
-  assert( (*(u8*)pKey1)<=0x3F || CORRUPT_DB );
-  switch( serial_type ){
-    case 1: { /* 1-byte signed integer */
-      lhs = ONE_BYTE_INT(aKey);
-      testcase( lhs<0 );
-      break;
-    }
-    case 2: { /* 2-byte signed integer */
-      lhs = TWO_BYTE_INT(aKey);
-      testcase( lhs<0 );
-      break;
-    }
-    case 3: { /* 3-byte signed integer */
-      lhs = THREE_BYTE_INT(aKey);
-      testcase( lhs<0 );
-      break;
-    }
-    case 4: { /* 4-byte signed integer */
-      y = FOUR_BYTE_UINT(aKey);
-      lhs = (i64)*(int*)&y;
-      testcase( lhs<0 );
-      break;
-    }
-    case 5: { /* 6-byte signed integer */
-      lhs = FOUR_BYTE_UINT(aKey+2) + (((i64)1)<<32)*TWO_BYTE_INT(aKey);
-      testcase( lhs<0 );
-      break;
-    }
-    case 6: { /* 8-byte signed integer */
-      x = FOUR_BYTE_UINT(aKey);
-      x = (x<<32) | FOUR_BYTE_UINT(aKey+4);
-      lhs = *(i64*)&x;
-      testcase( lhs<0 );
-      break;
-    }
-    case 8: 
-      lhs = 0;
-      break;
-    case 9:
-      lhs = 1;
-      break;
-
-    /* This case could be removed without changing the results of running
-    ** this code. Including it causes gcc to generate a faster switch 
-    ** statement (since the range of switch targets now starts at zero and
-    ** is contiguous) but does not cause any duplicate code to be generated
-    ** (as gcc is clever enough to combine the two like cases). Other 
-    ** compilers might be similar.  */ 
-    case 0: case 7:
-      return tdsqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2);
-
-    default:
-      return tdsqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2);
-  }
-
-  v = pPKey2->aMem[0].u.i;
-  if( v>lhs ){
-    res = pPKey2->r1;
-  }else if( v<lhs ){
-    res = pPKey2->r2;
-  }else if( pPKey2->nField>1 ){
-    /* The first fields of the two keys are equal. Compare the trailing 
-    ** fields.  */
-    res = tdsqlite3VdbeRecordCompareWithSkip(nKey1, pKey1, pPKey2, 1);
-  }else{
-    /* The first fields of the two keys are equal and there are no trailing
-    ** fields. Return pPKey2->default_rc in this case. */
-    res = pPKey2->default_rc;
-    pPKey2->eqSeen = 1;
-  }
-
-  assert( vdbeRecordCompareDebug(nKey1, pKey1, pPKey2, res) );
-  return res;
-}
-
-/*
-** This function is an optimized version of tdsqlite3VdbeRecordCompare() 
-** that (a) the first field of pPKey2 is a string, that (b) the first field
-** uses the collation sequence BINARY and (c) that the size-of-header varint 
-** at the start of (pKey1/nKey1) fits in a single byte.
-*/
-static int vdbeRecordCompareString(
-  int nKey1, const void *pKey1, /* Left key */
-  UnpackedRecord *pPKey2        /* Right key */
-){
-  const u8 *aKey1 = (const u8*)pKey1;
-  int serial_type;
-  int res;
-
-  assert( pPKey2->aMem[0].flags & MEM_Str );
-  vdbeAssertFieldCountWithinLimits(nKey1, pKey1, pPKey2->pKeyInfo);
-  getVarint32(&aKey1[1], serial_type);
-  if( serial_type<12 ){
-    res = pPKey2->r1;      /* (pKey1/nKey1) is a number or a null */
-  }else if( !(serial_type & 0x01) ){ 
-    res = pPKey2->r2;      /* (pKey1/nKey1) is a blob */
-  }else{
-    int nCmp;
-    int nStr;
-    int szHdr = aKey1[0];
-
-    nStr = (serial_type-12) / 2;
-    if( (szHdr + nStr) > nKey1 ){
-      pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
-      return 0;    /* Corruption */
-    }
-    nCmp = MIN( pPKey2->aMem[0].n, nStr );
-    res = memcmp(&aKey1[szHdr], pPKey2->aMem[0].z, nCmp);
-
-    if( res>0 ){
-      res = pPKey2->r2;
-    }else if( res<0 ){
-      res = pPKey2->r1;
-    }else{
-      res = nStr - pPKey2->aMem[0].n;
-      if( res==0 ){
-        if( pPKey2->nField>1 ){
-          res = tdsqlite3VdbeRecordCompareWithSkip(nKey1, pKey1, pPKey2, 1);
-        }else{
-          res = pPKey2->default_rc;
-          pPKey2->eqSeen = 1;
-        }
-      }else if( res>0 ){
-        res = pPKey2->r2;
-      }else{
-        res = pPKey2->r1;
-      }
-    }
-  }
-
-  assert( vdbeRecordCompareDebug(nKey1, pKey1, pPKey2, res)
-       || CORRUPT_DB
-       || pPKey2->pKeyInfo->db->mallocFailed
-  );
-  return res;
-}
-
-/*
-** Return a pointer to an tdsqlite3VdbeRecordCompare() compatible function
-** suitable for comparing serialized records to the unpacked record passed
-** as the only argument.
-*/
-SQLITE_PRIVATE RecordCompare tdsqlite3VdbeFindCompare(UnpackedRecord *p){
-  /* varintRecordCompareInt() and varintRecordCompareString() both assume
-  ** that the size-of-header varint that occurs at the start of each record
-  ** fits in a single byte (i.e. is 127 or less). varintRecordCompareInt()
-  ** also assumes that it is safe to overread a buffer by at least the 
-  ** maximum possible legal header size plus 8 bytes. Because there is
-  ** guaranteed to be at least 74 (but not 136) bytes of padding following each
-  ** buffer passed to varintRecordCompareInt() this makes it convenient to
-  ** limit the size of the header to 64 bytes in cases where the first field
-  ** is an integer.
-  **
-  ** The easiest way to enforce this limit is to consider only records with
-  ** 13 fields or less. If the first field is an integer, the maximum legal
-  ** header size is (12*5 + 1 + 1) bytes.  */
-  if( p->pKeyInfo->nAllField<=13 ){
-    int flags = p->aMem[0].flags;
-    if( p->pKeyInfo->aSortFlags[0] ){
-      if( p->pKeyInfo->aSortFlags[0] & KEYINFO_ORDER_BIGNULL ){
-        return tdsqlite3VdbeRecordCompare;
-      }
-      p->r1 = 1;
-      p->r2 = -1;
-    }else{
-      p->r1 = -1;
-      p->r2 = 1;
-    }
-    if( (flags & MEM_Int) ){
-      return vdbeRecordCompareInt;
-    }
-    testcase( flags & MEM_Real );
-    testcase( flags & MEM_Null );
-    testcase( flags & MEM_Blob );
-    if( (flags & (MEM_Real|MEM_IntReal|MEM_Null|MEM_Blob))==0
-     && p->pKeyInfo->aColl[0]==0
-    ){
-      assert( flags & MEM_Str );
-      return vdbeRecordCompareString;
-    }
-  }
-
-  return tdsqlite3VdbeRecordCompare;
-}
-
-/*
-** pCur points at an index entry created using the OP_MakeRecord opcode.
-** Read the rowid (the last field in the record) and store it in *rowid.
-** Return SQLITE_OK if everything works, or an error code otherwise.
-**
-** pCur might be pointing to text obtained from a corrupt database file.
-** So the content cannot be trusted.  Do appropriate checks on the content.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeIdxRowid(tdsqlite3 *db, BtCursor *pCur, i64 *rowid){
-  i64 nCellKey = 0;
-  int rc;
-  u32 szHdr;        /* Size of the header */
-  u32 typeRowid;    /* Serial type of the rowid */
-  u32 lenRowid;     /* Size of the rowid */
-  Mem m, v;
-
-  /* Get the size of the index entry.  Only indices entries of less
-  ** than 2GiB are support - anything large must be database corruption.
-  ** Any corruption is detected in tdsqlite3BtreeParseCellPtr(), though, so
-  ** this code can safely assume that nCellKey is 32-bits  
-  */
-  assert( tdsqlite3BtreeCursorIsValid(pCur) );
-  nCellKey = tdsqlite3BtreePayloadSize(pCur);
-  assert( (nCellKey & SQLITE_MAX_U32)==(u64)nCellKey );
-
-  /* Read in the complete content of the index entry */
-  tdsqlite3VdbeMemInit(&m, db, 0);
-  rc = tdsqlite3VdbeMemFromBtree(pCur, 0, (u32)nCellKey, &m);
-  if( rc ){
-    return rc;
-  }
-
-  /* The index entry must begin with a header size */
-  (void)getVarint32((u8*)m.z, szHdr);
-  testcase( szHdr==3 );
-  testcase( szHdr==m.n );
-  testcase( szHdr>0x7fffffff );
-  assert( m.n>=0 );
-  if( unlikely(szHdr<3 || szHdr>(unsigned)m.n) ){
-    goto idx_rowid_corruption;
-  }
-
-  /* The last field of the index should be an integer - the ROWID.
-  ** Verify that the last entry really is an integer. */
-  (void)getVarint32((u8*)&m.z[szHdr-1], typeRowid);
-  testcase( typeRowid==1 );
-  testcase( typeRowid==2 );
-  testcase( typeRowid==3 );
-  testcase( typeRowid==4 );
-  testcase( typeRowid==5 );
-  testcase( typeRowid==6 );
-  testcase( typeRowid==8 );
-  testcase( typeRowid==9 );
-  if( unlikely(typeRowid<1 || typeRowid>9 || typeRowid==7) ){
-    goto idx_rowid_corruption;
-  }
-  lenRowid = tdsqlite3SmallTypeSizes[typeRowid];
-  testcase( (u32)m.n==szHdr+lenRowid );
-  if( unlikely((u32)m.n<szHdr+lenRowid) ){
-    goto idx_rowid_corruption;
-  }
-
-  /* Fetch the integer off the end of the index record */
-  tdsqlite3VdbeSerialGet((u8*)&m.z[m.n-lenRowid], typeRowid, &v);
-  *rowid = v.u.i;
-  tdsqlite3VdbeMemRelease(&m);
-  return SQLITE_OK;
-
-  /* Jump here if database corruption is detected after m has been
-  ** allocated.  Free the m object and return SQLITE_CORRUPT. */
-idx_rowid_corruption:
-  testcase( m.szMalloc!=0 );
-  tdsqlite3VdbeMemRelease(&m);
-  return SQLITE_CORRUPT_BKPT;
-}
-
-/*
-** Compare the key of the index entry that cursor pC is pointing to against
-** the key string in pUnpacked.  Write into *pRes a number
-** that is negative, zero, or positive if pC is less than, equal to,
-** or greater than pUnpacked.  Return SQLITE_OK on success.
-**
-** pUnpacked is either created without a rowid or is truncated so that it
-** omits the rowid at the end.  The rowid at the end of the index entry
-** is ignored as well.  Hence, this routine only compares the prefixes 
-** of the keys prior to the final rowid, not the entire key.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeIdxKeyCompare(
-  tdsqlite3 *db,                     /* Database connection */
-  VdbeCursor *pC,                  /* The cursor to compare against */
-  UnpackedRecord *pUnpacked,       /* Unpacked version of key */
-  int *res                         /* Write the comparison result here */
-){
-  i64 nCellKey = 0;
-  int rc;
-  BtCursor *pCur;
-  Mem m;
-
-  assert( pC->eCurType==CURTYPE_BTREE );
-  pCur = pC->uc.pCursor;
-  assert( tdsqlite3BtreeCursorIsValid(pCur) );
-  nCellKey = tdsqlite3BtreePayloadSize(pCur);
-  /* nCellKey will always be between 0 and 0xffffffff because of the way
-  ** that btreeParseCellPtr() and tdsqlite3GetVarint32() are implemented */
-  if( nCellKey<=0 || nCellKey>0x7fffffff ){
-    *res = 0;
-    return SQLITE_CORRUPT_BKPT;
-  }
-  tdsqlite3VdbeMemInit(&m, db, 0);
-  rc = tdsqlite3VdbeMemFromBtree(pCur, 0, (u32)nCellKey, &m);
-  if( rc ){
-    return rc;
-  }
-  *res = tdsqlite3VdbeRecordCompareWithSkip(m.n, m.z, pUnpacked, 0);
-  tdsqlite3VdbeMemRelease(&m);
-  return SQLITE_OK;
-}
-
-/*
-** This routine sets the value to be returned by subsequent calls to
-** tdsqlite3_changes() on the database handle 'db'. 
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSetChanges(tdsqlite3 *db, int nChange){
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  db->nChange = nChange;
-  db->nTotalChange += nChange;
-}
-
-/*
-** Set a flag in the vdbe to update the change counter when it is finalised
-** or reset.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeCountChanges(Vdbe *v){
-  v->changeCntOn = 1;
-}
-
-/*
-** Mark every prepared statement associated with a database connection
-** as expired.
-**
-** An expired statement means that recompilation of the statement is
-** recommend.  Statements expire when things happen that make their
-** programs obsolete.  Removing user-defined functions or collating
-** sequences, or changing an authorization function are the types of
-** things that make prepared statements obsolete.
-**
-** If iCode is 1, then expiration is advisory.  The statement should
-** be reprepared before being restarted, but if it is already running
-** it is allowed to run to completion.
-**
-** Internally, this function just sets the Vdbe.expired flag on all
-** prepared statements.  The flag is set to 1 for an immediate expiration
-** and set to 2 for an advisory expiration.
-*/
-SQLITE_PRIVATE void tdsqlite3ExpirePreparedStatements(tdsqlite3 *db, int iCode){
-  Vdbe *p;
-  for(p = db->pVdbe; p; p=p->pNext){
-    p->expired = iCode+1;
-  }
-}
-
-/*
-** Return the database associated with the Vdbe.
-*/
-SQLITE_PRIVATE tdsqlite3 *tdsqlite3VdbeDb(Vdbe *v){
-  return v->db;
-}
-
-/*
-** Return the SQLITE_PREPARE flags for a Vdbe.
-*/
-SQLITE_PRIVATE u8 tdsqlite3VdbePrepareFlags(Vdbe *v){
-  return v->prepFlags;
-}
-
-/*
-** Return a pointer to an tdsqlite3_value structure containing the value bound
-** parameter iVar of VM v. Except, if the value is an SQL NULL, return 
-** 0 instead. Unless it is NULL, apply affinity aff (one of the SQLITE_AFF_*
-** constants) to the value before returning it.
-**
-** The returned value must be freed by the caller using tdsqlite3ValueFree().
-*/
-SQLITE_PRIVATE tdsqlite3_value *tdsqlite3VdbeGetBoundValue(Vdbe *v, int iVar, u8 aff){
-  assert( iVar>0 );
-  if( v ){
-    Mem *pMem = &v->aVar[iVar-1];
-    assert( (v->db->flags & SQLITE_EnableQPSG)==0 );
-    if( 0==(pMem->flags & MEM_Null) ){
-      tdsqlite3_value *pRet = tdsqlite3ValueNew(v->db);
-      if( pRet ){
-        tdsqlite3VdbeMemCopy((Mem *)pRet, pMem);
-        tdsqlite3ValueApplyAffinity(pRet, aff, SQLITE_UTF8);
-      }
-      return pRet;
-    }
-  }
-  return 0;
-}
-
-/*
-** Configure SQL variable iVar so that binding a new value to it signals
-** to tdsqlite3_reoptimize() that re-preparing the statement may result
-** in a better query plan.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSetVarmask(Vdbe *v, int iVar){
-  assert( iVar>0 );
-  assert( (v->db->flags & SQLITE_EnableQPSG)==0 );
-  if( iVar>=32 ){
-    v->expmask |= 0x80000000;
-  }else{
-    v->expmask |= ((u32)1 << (iVar-1));
-  }
-}
-
-/*
-** Cause a function to throw an error if it was call from OP_PureFunc
-** rather than OP_Function.
-**
-** OP_PureFunc means that the function must be deterministic, and should
-** throw an error if it is given inputs that would make it non-deterministic.
-** This routine is invoked by date/time functions that use non-deterministic
-** features such as 'now'.
-*/
-SQLITE_PRIVATE int tdsqlite3NotPureFunc(tdsqlite3_context *pCtx){
-  const VdbeOp *pOp;
-#ifdef SQLITE_ENABLE_STAT4
-  if( pCtx->pVdbe==0 ) return 1;
-#endif
-  pOp = pCtx->pVdbe->aOp + pCtx->iOp;
-  if( pOp->opcode==OP_PureFunc ){
-    const char *zContext;
-    char *zMsg;
-    if( pOp->p5 & NC_IsCheck ){
-      zContext = "a CHECK constraint";
-    }else if( pOp->p5 & NC_GenCol ){
-      zContext = "a generated column";
-    }else{
-      zContext = "an index";
-    }
-    zMsg = tdsqlite3_mprintf("non-deterministic use of %s() in %s",
-                           pCtx->pFunc->zName, zContext);
-    tdsqlite3_result_error(pCtx, zMsg, -1);
-    tdsqlite3_free(zMsg);
-    return 0;
-  }
-  return 1;
-}
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/*
-** Transfer error message text from an tdsqlite3_vtab.zErrMsg (text stored
-** in memory obtained from tdsqlite3_malloc) into a Vdbe.zErrMsg (text stored
-** in memory obtained from tdsqlite3DbMalloc).
-*/
-SQLITE_PRIVATE void tdsqlite3VtabImportErrmsg(Vdbe *p, tdsqlite3_vtab *pVtab){
-  if( pVtab->zErrMsg ){
-    tdsqlite3 *db = p->db;
-    tdsqlite3DbFree(db, p->zErrMsg);
-    p->zErrMsg = tdsqlite3DbStrDup(db, pVtab->zErrMsg);
-    tdsqlite3_free(pVtab->zErrMsg);
-    pVtab->zErrMsg = 0;
-  }
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-
-/*
-** If the second argument is not NULL, release any allocations associated 
-** with the memory cells in the p->aMem[] array. Also free the UnpackedRecord
-** structure itself, using tdsqlite3DbFree().
-**
-** This function is used to free UnpackedRecord structures allocated by
-** the vdbeUnpackRecord() function found in vdbeapi.c.
-*/
-static void vdbeFreeUnpacked(tdsqlite3 *db, int nField, UnpackedRecord *p){
-  if( p ){
-    int i;
-    for(i=0; i<nField; i++){
-      Mem *pMem = &p->aMem[i];
-      if( pMem->zMalloc ) tdsqlite3VdbeMemRelease(pMem);
-    }
-    tdsqlite3DbFreeNN(db, p);
-  }
-}
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-/*
-** Invoke the pre-update hook. If this is an UPDATE or DELETE pre-update call,
-** then cursor passed as the second argument should point to the row about
-** to be update or deleted. If the application calls tdsqlite3_preupdate_old(),
-** the required value will be read from the row the cursor points to.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbePreUpdateHook(
-  Vdbe *v,                        /* Vdbe pre-update hook is invoked by */
-  VdbeCursor *pCsr,               /* Cursor to grab old.* values from */
-  int op,                         /* SQLITE_INSERT, UPDATE or DELETE */
-  const char *zDb,                /* Database name */
-  Table *pTab,                    /* Modified table */
-  i64 iKey1,                      /* Initial key value */
-  int iReg                        /* Register for new.* record */
-){
-  tdsqlite3 *db = v->db;
-  i64 iKey2;
-  PreUpdate preupdate;
-  const char *zTbl = pTab->zName;
-  static const u8 fakeSortOrder = 0;
-
-  assert( db->pPreUpdate==0 );
-  memset(&preupdate, 0, sizeof(PreUpdate));
-  if( HasRowid(pTab)==0 ){
-    iKey1 = iKey2 = 0;
-    preupdate.pPk = tdsqlite3PrimaryKeyIndex(pTab);
-  }else{
-    if( op==SQLITE_UPDATE ){
-      iKey2 = v->aMem[iReg].u.i;
-    }else{
-      iKey2 = iKey1;
-    }
-  }
-
-  assert( pCsr->nField==pTab->nCol 
-       || (pCsr->nField==pTab->nCol+1 && op==SQLITE_DELETE && iReg==-1)
-  );
-
-  preupdate.v = v;
-  preupdate.pCsr = pCsr;
-  preupdate.op = op;
-  preupdate.iNewReg = iReg;
-  preupdate.keyinfo.db = db;
-  preupdate.keyinfo.enc = ENC(db);
-  preupdate.keyinfo.nKeyField = pTab->nCol;
-  preupdate.keyinfo.aSortFlags = (u8*)&fakeSortOrder;
-  preupdate.iKey1 = iKey1;
-  preupdate.iKey2 = iKey2;
-  preupdate.pTab = pTab;
-
-  db->pPreUpdate = &preupdate;
-  db->xPreUpdateCallback(db->pPreUpdateArg, db, op, zDb, zTbl, iKey1, iKey2);
-  db->pPreUpdate = 0;
-  tdsqlite3DbFree(db, preupdate.aRecord);
-  vdbeFreeUnpacked(db, preupdate.keyinfo.nKeyField+1, preupdate.pUnpacked);
-  vdbeFreeUnpacked(db, preupdate.keyinfo.nKeyField+1, preupdate.pNewUnpacked);
-  if( preupdate.aNew ){
-    int i;
-    for(i=0; i<pCsr->nField; i++){
-      tdsqlite3VdbeMemRelease(&preupdate.aNew[i]);
-    }
-    tdsqlite3DbFreeNN(db, preupdate.aNew);
-  }
-}
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-
-/************** End of vdbeaux.c *********************************************/
-/************** Begin file vdbeapi.c *****************************************/
-/*
-** 2004 May 26
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains code use to implement APIs that are part of the
-** VDBE.
-*/
-/* #include "sqliteInt.h" */
-/* #include "vdbeInt.h" */
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/*
-** Return TRUE (non-zero) of the statement supplied as an argument needs
-** to be recompiled.  A statement needs to be recompiled whenever the
-** execution environment changes in a way that would alter the program
-** that tdsqlite3_prepare() generates.  For example, if new functions or
-** collating sequences are registered or if an authorizer function is
-** added or changed.
-*/
-SQLITE_API int tdsqlite3_expired(tdsqlite3_stmt *pStmt){
-  Vdbe *p = (Vdbe*)pStmt;
-  return p==0 || p->expired;
-}
-#endif
-
-/*
-** Check on a Vdbe to make sure it has not been finalized.  Log
-** an error and return true if it has been finalized (or is otherwise
-** invalid).  Return false if it is ok.
-*/
-static int vdbeSafety(Vdbe *p){
-  if( p->db==0 ){
-    tdsqlite3_log(SQLITE_MISUSE, "API called with finalized prepared statement");
-    return 1;
-  }else{
-    return 0;
-  }
-}
-static int vdbeSafetyNotNull(Vdbe *p){
-  if( p==0 ){
-    tdsqlite3_log(SQLITE_MISUSE, "API called with NULL prepared statement");
-    return 1;
-  }else{
-    return vdbeSafety(p);
-  }
-}
-
-#ifndef SQLITE_OMIT_TRACE
-/*
-** Invoke the profile callback.  This routine is only called if we already
-** know that the profile callback is defined and needs to be invoked.
-*/
-static SQLITE_NOINLINE void invokeProfileCallback(tdsqlite3 *db, Vdbe *p){
-  tdsqlite3_int64 iNow;
-  tdsqlite3_int64 iElapse;
-  assert( p->startTime>0 );
-  assert( (db->mTrace & (SQLITE_TRACE_PROFILE|SQLITE_TRACE_XPROFILE))!=0 );
-  assert( db->init.busy==0 );
-  assert( p->zSql!=0 );
-  tdsqlite3OsCurrentTimeInt64(db->pVfs, &iNow);
-  iElapse = (iNow - p->startTime)*1000000;
-#ifndef SQLITE_OMIT_DEPRECATED
-  if( db->xProfile ){
-    db->xProfile(db->pProfileArg, p->zSql, iElapse);
-  }
-#endif
-  if( db->mTrace & SQLITE_TRACE_PROFILE ){
-    db->xTrace(SQLITE_TRACE_PROFILE, db->pTraceArg, p, (void*)&iElapse);
-  }
-  p->startTime = 0;
-}
-/*
-** The checkProfileCallback(DB,P) macro checks to see if a profile callback
-** is needed, and it invokes the callback if it is needed.
-*/
-# define checkProfileCallback(DB,P) \
-   if( ((P)->startTime)>0 ){ invokeProfileCallback(DB,P); }
-#else
-# define checkProfileCallback(DB,P)  /*no-op*/
-#endif
-
-/*
-** The following routine destroys a virtual machine that is created by
-** the tdsqlite3_compile() routine. The integer returned is an SQLITE_
-** success/failure code that describes the result of executing the virtual
-** machine.
-**
-** This routine sets the error code and string returned by
-** tdsqlite3_errcode(), tdsqlite3_errmsg() and tdsqlite3_errmsg16().
-*/
-SQLITE_API int tdsqlite3_finalize(tdsqlite3_stmt *pStmt){
-  int rc;
-  if( pStmt==0 ){
-    /* IMPLEMENTATION-OF: R-57228-12904 Invoking tdsqlite3_finalize() on a NULL
-    ** pointer is a harmless no-op. */
-    rc = SQLITE_OK;
-  }else{
-    Vdbe *v = (Vdbe*)pStmt;
-    tdsqlite3 *db = v->db;
-    if( vdbeSafety(v) ) return SQLITE_MISUSE_BKPT;
-    tdsqlite3_mutex_enter(db->mutex);
-    checkProfileCallback(db, v);
-    rc = tdsqlite3VdbeFinalize(v);
-    rc = tdsqlite3ApiExit(db, rc);
-    tdsqlite3LeaveMutexAndCloseZombie(db);
-  }
-  return rc;
-}
-
-/*
-** Terminate the current execution of an SQL statement and reset it
-** back to its starting state so that it can be reused. A success code from
-** the prior execution is returned.
-**
-** This routine sets the error code and string returned by
-** tdsqlite3_errcode(), tdsqlite3_errmsg() and tdsqlite3_errmsg16().
-*/
-SQLITE_API int tdsqlite3_reset(tdsqlite3_stmt *pStmt){
-  int rc;
-  if( pStmt==0 ){
-    rc = SQLITE_OK;
-  }else{
-    Vdbe *v = (Vdbe*)pStmt;
-    tdsqlite3 *db = v->db;
-    tdsqlite3_mutex_enter(db->mutex);
-    checkProfileCallback(db, v);
-    rc = tdsqlite3VdbeReset(v);
-    tdsqlite3VdbeRewind(v);
-    assert( (rc & (db->errMask))==rc );
-    rc = tdsqlite3ApiExit(db, rc);
-    tdsqlite3_mutex_leave(db->mutex);
-  }
-  return rc;
-}
-
-/*
-** Set all the parameters in the compiled SQL statement to NULL.
-*/
-SQLITE_API int tdsqlite3_clear_bindings(tdsqlite3_stmt *pStmt){
-  int i;
-  int rc = SQLITE_OK;
-  Vdbe *p = (Vdbe*)pStmt;
-#if SQLITE_THREADSAFE
-  tdsqlite3_mutex *mutex = ((Vdbe*)pStmt)->db->mutex;
-#endif
-  tdsqlite3_mutex_enter(mutex);
-  for(i=0; i<p->nVar; i++){
-    tdsqlite3VdbeMemRelease(&p->aVar[i]);
-    p->aVar[i].flags = MEM_Null;
-  }
-  assert( (p->prepFlags & SQLITE_PREPARE_SAVESQL)!=0 || p->expmask==0 );
-  if( p->expmask ){
-    p->expired = 1;
-  }
-  tdsqlite3_mutex_leave(mutex);
-  return rc;
-}
-
-
-/**************************** tdsqlite3_value_  *******************************
-** The following routines extract information from a Mem or tdsqlite3_value
-** structure.
-*/
-SQLITE_API const void *tdsqlite3_value_blob(tdsqlite3_value *pVal){
-  Mem *p = (Mem*)pVal;
-  if( p->flags & (MEM_Blob|MEM_Str) ){
-    if( ExpandBlob(p)!=SQLITE_OK ){
-      assert( p->flags==MEM_Null && p->z==0 );
-      return 0;
-    }
-    p->flags |= MEM_Blob;
-    return p->n ? p->z : 0;
-  }else{
-    return tdsqlite3_value_text(pVal);
-  }
-}
-SQLITE_API int tdsqlite3_value_bytes(tdsqlite3_value *pVal){
-  return tdsqlite3ValueBytes(pVal, SQLITE_UTF8);
-}
-SQLITE_API int tdsqlite3_value_bytes16(tdsqlite3_value *pVal){
-  return tdsqlite3ValueBytes(pVal, SQLITE_UTF16NATIVE);
-}
-SQLITE_API double tdsqlite3_value_double(tdsqlite3_value *pVal){
-  return tdsqlite3VdbeRealValue((Mem*)pVal);
-}
-SQLITE_API int tdsqlite3_value_int(tdsqlite3_value *pVal){
-  return (int)tdsqlite3VdbeIntValue((Mem*)pVal);
-}
-SQLITE_API sqlite_int64 tdsqlite3_value_int64(tdsqlite3_value *pVal){
-  return tdsqlite3VdbeIntValue((Mem*)pVal);
-}
-SQLITE_API unsigned int tdsqlite3_value_subtype(tdsqlite3_value *pVal){
-  Mem *pMem = (Mem*)pVal;
-  return ((pMem->flags & MEM_Subtype) ? pMem->eSubtype : 0);
-}
-SQLITE_API void *tdsqlite3_value_pointer(tdsqlite3_value *pVal, const char *zPType){
-  Mem *p = (Mem*)pVal;
-  if( (p->flags&(MEM_TypeMask|MEM_Term|MEM_Subtype)) ==
-                 (MEM_Null|MEM_Term|MEM_Subtype)
-   && zPType!=0
-   && p->eSubtype=='p'
-   && strcmp(p->u.zPType, zPType)==0
-  ){
-    return (void*)p->z;
-  }else{
-    return 0;
-  }
-}
-SQLITE_API const unsigned char *tdsqlite3_value_text(tdsqlite3_value *pVal){
-  return (const unsigned char *)tdsqlite3ValueText(pVal, SQLITE_UTF8);
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API const void *tdsqlite3_value_text16(tdsqlite3_value* pVal){
-  return tdsqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
-}
-SQLITE_API const void *tdsqlite3_value_text16be(tdsqlite3_value *pVal){
-  return tdsqlite3ValueText(pVal, SQLITE_UTF16BE);
-}
-SQLITE_API const void *tdsqlite3_value_text16le(tdsqlite3_value *pVal){
-  return tdsqlite3ValueText(pVal, SQLITE_UTF16LE);
-}
-#endif /* SQLITE_OMIT_UTF16 */
-/* EVIDENCE-OF: R-12793-43283 Every value in SQLite has one of five
-** fundamental datatypes: 64-bit signed integer 64-bit IEEE floating
-** point number string BLOB NULL
-*/
-SQLITE_API int tdsqlite3_value_type(tdsqlite3_value* pVal){
-  static const u8 aType[] = {
-     SQLITE_BLOB,     /* 0x00 (not possible) */
-     SQLITE_NULL,     /* 0x01 NULL */
-     SQLITE_TEXT,     /* 0x02 TEXT */
-     SQLITE_NULL,     /* 0x03 (not possible) */
-     SQLITE_INTEGER,  /* 0x04 INTEGER */
-     SQLITE_NULL,     /* 0x05 (not possible) */
-     SQLITE_INTEGER,  /* 0x06 INTEGER + TEXT */
-     SQLITE_NULL,     /* 0x07 (not possible) */
-     SQLITE_FLOAT,    /* 0x08 FLOAT */
-     SQLITE_NULL,     /* 0x09 (not possible) */
-     SQLITE_FLOAT,    /* 0x0a FLOAT + TEXT */
-     SQLITE_NULL,     /* 0x0b (not possible) */
-     SQLITE_INTEGER,  /* 0x0c (not possible) */
-     SQLITE_NULL,     /* 0x0d (not possible) */
-     SQLITE_INTEGER,  /* 0x0e (not possible) */
-     SQLITE_NULL,     /* 0x0f (not possible) */
-     SQLITE_BLOB,     /* 0x10 BLOB */
-     SQLITE_NULL,     /* 0x11 (not possible) */
-     SQLITE_TEXT,     /* 0x12 (not possible) */
-     SQLITE_NULL,     /* 0x13 (not possible) */
-     SQLITE_INTEGER,  /* 0x14 INTEGER + BLOB */
-     SQLITE_NULL,     /* 0x15 (not possible) */
-     SQLITE_INTEGER,  /* 0x16 (not possible) */
-     SQLITE_NULL,     /* 0x17 (not possible) */
-     SQLITE_FLOAT,    /* 0x18 FLOAT + BLOB */
-     SQLITE_NULL,     /* 0x19 (not possible) */
-     SQLITE_FLOAT,    /* 0x1a (not possible) */
-     SQLITE_NULL,     /* 0x1b (not possible) */
-     SQLITE_INTEGER,  /* 0x1c (not possible) */
-     SQLITE_NULL,     /* 0x1d (not possible) */
-     SQLITE_INTEGER,  /* 0x1e (not possible) */
-     SQLITE_NULL,     /* 0x1f (not possible) */
-     SQLITE_FLOAT,    /* 0x20 INTREAL */
-     SQLITE_NULL,     /* 0x21 (not possible) */
-     SQLITE_TEXT,     /* 0x22 INTREAL + TEXT */
-     SQLITE_NULL,     /* 0x23 (not possible) */
-     SQLITE_FLOAT,    /* 0x24 (not possible) */
-     SQLITE_NULL,     /* 0x25 (not possible) */
-     SQLITE_FLOAT,    /* 0x26 (not possible) */
-     SQLITE_NULL,     /* 0x27 (not possible) */
-     SQLITE_FLOAT,    /* 0x28 (not possible) */
-     SQLITE_NULL,     /* 0x29 (not possible) */
-     SQLITE_FLOAT,    /* 0x2a (not possible) */
-     SQLITE_NULL,     /* 0x2b (not possible) */
-     SQLITE_FLOAT,    /* 0x2c (not possible) */
-     SQLITE_NULL,     /* 0x2d (not possible) */
-     SQLITE_FLOAT,    /* 0x2e (not possible) */
-     SQLITE_NULL,     /* 0x2f (not possible) */
-     SQLITE_BLOB,     /* 0x30 (not possible) */
-     SQLITE_NULL,     /* 0x31 (not possible) */
-     SQLITE_TEXT,     /* 0x32 (not possible) */
-     SQLITE_NULL,     /* 0x33 (not possible) */
-     SQLITE_FLOAT,    /* 0x34 (not possible) */
-     SQLITE_NULL,     /* 0x35 (not possible) */
-     SQLITE_FLOAT,    /* 0x36 (not possible) */
-     SQLITE_NULL,     /* 0x37 (not possible) */
-     SQLITE_FLOAT,    /* 0x38 (not possible) */
-     SQLITE_NULL,     /* 0x39 (not possible) */
-     SQLITE_FLOAT,    /* 0x3a (not possible) */
-     SQLITE_NULL,     /* 0x3b (not possible) */
-     SQLITE_FLOAT,    /* 0x3c (not possible) */
-     SQLITE_NULL,     /* 0x3d (not possible) */
-     SQLITE_FLOAT,    /* 0x3e (not possible) */
-     SQLITE_NULL,     /* 0x3f (not possible) */
-  };
-#ifdef SQLITE_DEBUG
-  {
-    int eType = SQLITE_BLOB;
-    if( pVal->flags & MEM_Null ){
-      eType = SQLITE_NULL;
-    }else if( pVal->flags & (MEM_Real|MEM_IntReal) ){
-      eType = SQLITE_FLOAT;
-    }else if( pVal->flags & MEM_Int ){
-      eType = SQLITE_INTEGER;
-    }else if( pVal->flags & MEM_Str ){
-      eType = SQLITE_TEXT;
-    }
-    assert( eType == aType[pVal->flags&MEM_AffMask] );
-  }
-#endif
-  return aType[pVal->flags&MEM_AffMask];
-}
-
-/* Return true if a parameter to xUpdate represents an unchanged column */
-SQLITE_API int tdsqlite3_value_nochange(tdsqlite3_value *pVal){
-  return (pVal->flags&(MEM_Null|MEM_Zero))==(MEM_Null|MEM_Zero);
-}
-
-/* Return true if a parameter value originated from an tdsqlite3_bind() */
-SQLITE_API int tdsqlite3_value_frombind(tdsqlite3_value *pVal){
-  return (pVal->flags&MEM_FromBind)!=0;
-}
-
-/* Make a copy of an tdsqlite3_value object
-*/
-SQLITE_API tdsqlite3_value *tdsqlite3_value_dup(const tdsqlite3_value *pOrig){
-  tdsqlite3_value *pNew;
-  if( pOrig==0 ) return 0;
-  pNew = tdsqlite3_malloc( sizeof(*pNew) );
-  if( pNew==0 ) return 0;
-  memset(pNew, 0, sizeof(*pNew));
-  memcpy(pNew, pOrig, MEMCELLSIZE);
-  pNew->flags &= ~MEM_Dyn;
-  pNew->db = 0;
-  if( pNew->flags&(MEM_Str|MEM_Blob) ){
-    pNew->flags &= ~(MEM_Static|MEM_Dyn);
-    pNew->flags |= MEM_Ephem;
-    if( tdsqlite3VdbeMemMakeWriteable(pNew)!=SQLITE_OK ){
-      tdsqlite3ValueFree(pNew);
-      pNew = 0;
-    }
-  }
-  return pNew;
-}
-
-/* Destroy an tdsqlite3_value object previously obtained from
-** tdsqlite3_value_dup().
-*/
-SQLITE_API void tdsqlite3_value_free(tdsqlite3_value *pOld){
-  tdsqlite3ValueFree(pOld);
-}
-  
-
-/**************************** tdsqlite3_result_  *******************************
-** The following routines are used by user-defined functions to specify
-** the function result.
-**
-** The setStrOrError() function calls tdsqlite3VdbeMemSetStr() to store the
-** result as a string or blob but if the string or blob is too large, it
-** then sets the error code to SQLITE_TOOBIG
-**
-** The invokeValueDestructor(P,X) routine invokes destructor function X()
-** on value P is not going to be used and need to be destroyed.
-*/
-static void setResultStrOrError(
-  tdsqlite3_context *pCtx,  /* Function context */
-  const char *z,          /* String pointer */
-  int n,                  /* Bytes in string, or negative */
-  u8 enc,                 /* Encoding of z.  0 for BLOBs */
-  void (*xDel)(void*)     /* Destructor function */
-){
-  if( tdsqlite3VdbeMemSetStr(pCtx->pOut, z, n, enc, xDel)==SQLITE_TOOBIG ){
-    tdsqlite3_result_error_toobig(pCtx);
-  }
-}
-static int invokeValueDestructor(
-  const void *p,             /* Value to destroy */
-  void (*xDel)(void*),       /* The destructor */
-  tdsqlite3_context *pCtx      /* Set a SQLITE_TOOBIG error if no NULL */
-){
-  assert( xDel!=SQLITE_DYNAMIC );
-  if( xDel==0 ){
-    /* noop */
-  }else if( xDel==SQLITE_TRANSIENT ){
-    /* noop */
-  }else{
-    xDel((void*)p);
-  }
-  if( pCtx ) tdsqlite3_result_error_toobig(pCtx);
-  return SQLITE_TOOBIG;
-}
-SQLITE_API void tdsqlite3_result_blob(
-  tdsqlite3_context *pCtx, 
-  const void *z, 
-  int n, 
-  void (*xDel)(void *)
-){
-  assert( n>=0 );
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  setResultStrOrError(pCtx, z, n, 0, xDel);
-}
-SQLITE_API void tdsqlite3_result_blob64(
-  tdsqlite3_context *pCtx, 
-  const void *z, 
-  tdsqlite3_uint64 n,
-  void (*xDel)(void *)
-){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  assert( xDel!=SQLITE_DYNAMIC );
-  if( n>0x7fffffff ){
-    (void)invokeValueDestructor(z, xDel, pCtx);
-  }else{
-    setResultStrOrError(pCtx, z, (int)n, 0, xDel);
-  }
-}
-SQLITE_API void tdsqlite3_result_double(tdsqlite3_context *pCtx, double rVal){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  tdsqlite3VdbeMemSetDouble(pCtx->pOut, rVal);
-}
-SQLITE_API void tdsqlite3_result_error(tdsqlite3_context *pCtx, const char *z, int n){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  pCtx->isError = SQLITE_ERROR;
-  tdsqlite3VdbeMemSetStr(pCtx->pOut, z, n, SQLITE_UTF8, SQLITE_TRANSIENT);
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API void tdsqlite3_result_error16(tdsqlite3_context *pCtx, const void *z, int n){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  pCtx->isError = SQLITE_ERROR;
-  tdsqlite3VdbeMemSetStr(pCtx->pOut, z, n, SQLITE_UTF16NATIVE, SQLITE_TRANSIENT);
-}
-#endif
-SQLITE_API void tdsqlite3_result_int(tdsqlite3_context *pCtx, int iVal){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  tdsqlite3VdbeMemSetInt64(pCtx->pOut, (i64)iVal);
-}
-SQLITE_API void tdsqlite3_result_int64(tdsqlite3_context *pCtx, i64 iVal){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  tdsqlite3VdbeMemSetInt64(pCtx->pOut, iVal);
-}
-SQLITE_API void tdsqlite3_result_null(tdsqlite3_context *pCtx){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  tdsqlite3VdbeMemSetNull(pCtx->pOut);
-}
-SQLITE_API void tdsqlite3_result_pointer(
-  tdsqlite3_context *pCtx,
-  void *pPtr,
-  const char *zPType,
-  void (*xDestructor)(void*)
-){
-  Mem *pOut = pCtx->pOut;
-  assert( tdsqlite3_mutex_held(pOut->db->mutex) );
-  tdsqlite3VdbeMemRelease(pOut);
-  pOut->flags = MEM_Null;
-  tdsqlite3VdbeMemSetPointer(pOut, pPtr, zPType, xDestructor);
-}
-SQLITE_API void tdsqlite3_result_subtype(tdsqlite3_context *pCtx, unsigned int eSubtype){
-  Mem *pOut = pCtx->pOut;
-  assert( tdsqlite3_mutex_held(pOut->db->mutex) );
-  pOut->eSubtype = eSubtype & 0xff;
-  pOut->flags |= MEM_Subtype;
-}
-SQLITE_API void tdsqlite3_result_text(
-  tdsqlite3_context *pCtx, 
-  const char *z, 
-  int n,
-  void (*xDel)(void *)
-){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  setResultStrOrError(pCtx, z, n, SQLITE_UTF8, xDel);
-}
-SQLITE_API void tdsqlite3_result_text64(
-  tdsqlite3_context *pCtx, 
-  const char *z, 
-  tdsqlite3_uint64 n,
-  void (*xDel)(void *),
-  unsigned char enc
-){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  assert( xDel!=SQLITE_DYNAMIC );
-  if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE;
-  if( n>0x7fffffff ){
-    (void)invokeValueDestructor(z, xDel, pCtx);
-  }else{
-    setResultStrOrError(pCtx, z, (int)n, enc, xDel);
-  }
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API void tdsqlite3_result_text16(
-  tdsqlite3_context *pCtx, 
-  const void *z, 
-  int n, 
-  void (*xDel)(void *)
-){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  setResultStrOrError(pCtx, z, n, SQLITE_UTF16NATIVE, xDel);
-}
-SQLITE_API void tdsqlite3_result_text16be(
-  tdsqlite3_context *pCtx, 
-  const void *z, 
-  int n, 
-  void (*xDel)(void *)
-){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  setResultStrOrError(pCtx, z, n, SQLITE_UTF16BE, xDel);
-}
-SQLITE_API void tdsqlite3_result_text16le(
-  tdsqlite3_context *pCtx, 
-  const void *z, 
-  int n, 
-  void (*xDel)(void *)
-){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  setResultStrOrError(pCtx, z, n, SQLITE_UTF16LE, xDel);
-}
-#endif /* SQLITE_OMIT_UTF16 */
-SQLITE_API void tdsqlite3_result_value(tdsqlite3_context *pCtx, tdsqlite3_value *pValue){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  tdsqlite3VdbeMemCopy(pCtx->pOut, pValue);
-}
-SQLITE_API void tdsqlite3_result_zeroblob(tdsqlite3_context *pCtx, int n){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  tdsqlite3VdbeMemSetZeroBlob(pCtx->pOut, n);
-}
-SQLITE_API int tdsqlite3_result_zeroblob64(tdsqlite3_context *pCtx, u64 n){
-  Mem *pOut = pCtx->pOut;
-  assert( tdsqlite3_mutex_held(pOut->db->mutex) );
-  if( n>(u64)pOut->db->aLimit[SQLITE_LIMIT_LENGTH] ){
-    return SQLITE_TOOBIG;
-  }
-  tdsqlite3VdbeMemSetZeroBlob(pCtx->pOut, (int)n);
-  return SQLITE_OK;
-}
-SQLITE_API void tdsqlite3_result_error_code(tdsqlite3_context *pCtx, int errCode){
-  pCtx->isError = errCode ? errCode : -1;
-#ifdef SQLITE_DEBUG
-  if( pCtx->pVdbe ) pCtx->pVdbe->rcApp = errCode;
-#endif
-  if( pCtx->pOut->flags & MEM_Null ){
-    tdsqlite3VdbeMemSetStr(pCtx->pOut, tdsqlite3ErrStr(errCode), -1, 
-                         SQLITE_UTF8, SQLITE_STATIC);
-  }
-}
-
-/* Force an SQLITE_TOOBIG error. */
-SQLITE_API void tdsqlite3_result_error_toobig(tdsqlite3_context *pCtx){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  pCtx->isError = SQLITE_TOOBIG;
-  tdsqlite3VdbeMemSetStr(pCtx->pOut, "string or blob too big", -1, 
-                       SQLITE_UTF8, SQLITE_STATIC);
-}
-
-/* An SQLITE_NOMEM error. */
-SQLITE_API void tdsqlite3_result_error_nomem(tdsqlite3_context *pCtx){
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  tdsqlite3VdbeMemSetNull(pCtx->pOut);
-  pCtx->isError = SQLITE_NOMEM_BKPT;
-  tdsqlite3OomFault(pCtx->pOut->db);
-}
-
-#ifndef SQLITE_UNTESTABLE
-/* Force the INT64 value currently stored as the result to be
-** a MEM_IntReal value.  See the SQLITE_TESTCTRL_RESULT_INTREAL
-** test-control.
-*/
-SQLITE_PRIVATE void tdsqlite3ResultIntReal(tdsqlite3_context *pCtx){ 
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-  if( pCtx->pOut->flags & MEM_Int ){
-    pCtx->pOut->flags &= ~MEM_Int;
-    pCtx->pOut->flags |= MEM_IntReal;
-  }
-}
-#endif
-
-
-/*
-** This function is called after a transaction has been committed. It 
-** invokes callbacks registered with tdsqlite3_wal_hook() as required.
-*/
-static int doWalCallbacks(tdsqlite3 *db){
-  int rc = SQLITE_OK;
-#ifndef SQLITE_OMIT_WAL
-  int i;
-  for(i=0; i<db->nDb; i++){
-    Btree *pBt = db->aDb[i].pBt;
-    if( pBt ){
-      int nEntry;
-      tdsqlite3BtreeEnter(pBt);
-      nEntry = tdsqlite3PagerWalCallback(tdsqlite3BtreePager(pBt));
-      tdsqlite3BtreeLeave(pBt);
-      if( nEntry>0 && db->xWalCallback && rc==SQLITE_OK ){
-        rc = db->xWalCallback(db->pWalArg, db, db->aDb[i].zDbSName, nEntry);
-      }
-    }
-  }
-#endif
-  return rc;
-}
-
-
-/*
-** Execute the statement pStmt, either until a row of data is ready, the
-** statement is completely executed or an error occurs.
-**
-** This routine implements the bulk of the logic behind the sqlite_step()
-** API.  The only thing omitted is the automatic recompile if a 
-** schema change has occurred.  That detail is handled by the
-** outer tdsqlite3_step() wrapper procedure.
-*/
-static int tdsqlite3Step(Vdbe *p){
-  tdsqlite3 *db;
-  int rc;
-
-  assert(p);
-  if( p->magic!=VDBE_MAGIC_RUN ){
-    /* We used to require that tdsqlite3_reset() be called before retrying
-    ** tdsqlite3_step() after any error or after SQLITE_DONE.  But beginning
-    ** with version 3.7.0, we changed this so that tdsqlite3_reset() would
-    ** be called automatically instead of throwing the SQLITE_MISUSE error.
-    ** This "automatic-reset" change is not technically an incompatibility, 
-    ** since any application that receives an SQLITE_MISUSE is broken by
-    ** definition.
-    **
-    ** Nevertheless, some published applications that were originally written
-    ** for version 3.6.23 or earlier do in fact depend on SQLITE_MISUSE 
-    ** returns, and those were broken by the automatic-reset change.  As a
-    ** a work-around, the SQLITE_OMIT_AUTORESET compile-time restores the
-    ** legacy behavior of returning SQLITE_MISUSE for cases where the 
-    ** previous tdsqlite3_step() returned something other than a SQLITE_LOCKED
-    ** or SQLITE_BUSY error.
-    */
-#ifdef SQLITE_OMIT_AUTORESET
-    if( (rc = p->rc&0xff)==SQLITE_BUSY || rc==SQLITE_LOCKED ){
-      tdsqlite3_reset((tdsqlite3_stmt*)p);
-    }else{
-      return SQLITE_MISUSE_BKPT;
-    }
-#else
-    tdsqlite3_reset((tdsqlite3_stmt*)p);
-#endif
-  }
-
-  /* Check that malloc() has not failed. If it has, return early. */
-  db = p->db;
-  if( db->mallocFailed ){
-    p->rc = SQLITE_NOMEM;
-    return SQLITE_NOMEM_BKPT;
-  }
-
-  if( p->pc<0 && p->expired ){
-    p->rc = SQLITE_SCHEMA;
-    rc = SQLITE_ERROR;
-    goto end_of_step;
-  }
-  if( p->pc<0 ){
-    /* If there are no other statements currently running, then
-    ** reset the interrupt flag.  This prevents a call to tdsqlite3_interrupt
-    ** from interrupting a statement that has not yet started.
-    */
-    if( db->nVdbeActive==0 ){
-      db->u1.isInterrupted = 0;
-    }
-
-    assert( db->nVdbeWrite>0 || db->autoCommit==0 
-        || (db->nDeferredCons==0 && db->nDeferredImmCons==0)
-    );
-
-#ifndef SQLITE_OMIT_TRACE
-    if( (db->mTrace & (SQLITE_TRACE_PROFILE|SQLITE_TRACE_XPROFILE))!=0
-        && !db->init.busy && p->zSql ){
-      tdsqlite3OsCurrentTimeInt64(db->pVfs, &p->startTime);
-    }else{
-      assert( p->startTime==0 );
-    }
-#endif
-
-    db->nVdbeActive++;
-    if( p->readOnly==0 ) db->nVdbeWrite++;
-    if( p->bIsReader ) db->nVdbeRead++;
-    p->pc = 0;
-  }
-#ifdef SQLITE_DEBUG
-  p->rcApp = SQLITE_OK;
-#endif
-#ifndef SQLITE_OMIT_EXPLAIN
-  if( p->explain ){
-    rc = tdsqlite3VdbeList(p);
-  }else
-#endif /* SQLITE_OMIT_EXPLAIN */
-  {
-    db->nVdbeExec++;
-    rc = tdsqlite3VdbeExec(p);
-    db->nVdbeExec--;
-  }
-
-  if( rc!=SQLITE_ROW ){
-#ifndef SQLITE_OMIT_TRACE
-    /* If the statement completed successfully, invoke the profile callback */
-    checkProfileCallback(db, p);
-#endif
-
-    if( rc==SQLITE_DONE && db->autoCommit ){
-      assert( p->rc==SQLITE_OK );
-      p->rc = doWalCallbacks(db);
-      if( p->rc!=SQLITE_OK ){
-        rc = SQLITE_ERROR;
-      }
-    }
-  }
-
-  db->errCode = rc;
-  if( SQLITE_NOMEM==tdsqlite3ApiExit(p->db, p->rc) ){
-    p->rc = SQLITE_NOMEM_BKPT;
-  }
-end_of_step:
-  /* At this point local variable rc holds the value that should be 
-  ** returned if this statement was compiled using the legacy 
-  ** tdsqlite3_prepare() interface. According to the docs, this can only
-  ** be one of the values in the first assert() below. Variable p->rc 
-  ** contains the value that would be returned if tdsqlite3_finalize() 
-  ** were called on statement p.
-  */
-  assert( rc==SQLITE_ROW  || rc==SQLITE_DONE   || rc==SQLITE_ERROR 
-       || (rc&0xff)==SQLITE_BUSY || rc==SQLITE_MISUSE
-  );
-  assert( (p->rc!=SQLITE_ROW && p->rc!=SQLITE_DONE) || p->rc==p->rcApp );
-  if( rc!=SQLITE_ROW 
-   && rc!=SQLITE_DONE
-   && (p->prepFlags & SQLITE_PREPARE_SAVESQL)!=0
-  ){
-    /* If this statement was prepared using saved SQL and an 
-    ** error has occurred, then return the error code in p->rc to the
-    ** caller. Set the error code in the database handle to the same value.
-    */ 
-    rc = tdsqlite3VdbeTransferError(p);
-  }
-  return (rc&db->errMask);
-}
-
-/*
-** This is the top-level implementation of tdsqlite3_step().  Call
-** tdsqlite3Step() to do most of the work.  If a schema error occurs,
-** call tdsqlite3Reprepare() and try again.
-*/
-SQLITE_API int tdsqlite3_step(tdsqlite3_stmt *pStmt){
-  int rc = SQLITE_OK;      /* Result from tdsqlite3Step() */
-  Vdbe *v = (Vdbe*)pStmt;  /* the prepared statement */
-  int cnt = 0;             /* Counter to prevent infinite loop of reprepares */
-  tdsqlite3 *db;             /* The database connection */
-
-  if( vdbeSafetyNotNull(v) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-  db = v->db;
-  tdsqlite3_mutex_enter(db->mutex);
-  v->doingRerun = 0;
-  while( (rc = tdsqlite3Step(v))==SQLITE_SCHEMA
-         && cnt++ < SQLITE_MAX_SCHEMA_RETRY ){
-    int savedPc = v->pc;
-    rc = tdsqlite3Reprepare(v);
-    if( rc!=SQLITE_OK ){
-      /* This case occurs after failing to recompile an sql statement. 
-      ** The error message from the SQL compiler has already been loaded 
-      ** into the database handle. This block copies the error message 
-      ** from the database handle into the statement and sets the statement
-      ** program counter to 0 to ensure that when the statement is 
-      ** finalized or reset the parser error message is available via
-      ** tdsqlite3_errmsg() and tdsqlite3_errcode().
-      */
-      const char *zErr = (const char *)tdsqlite3_value_text(db->pErr); 
-      tdsqlite3DbFree(db, v->zErrMsg);
-      if( !db->mallocFailed ){
-        v->zErrMsg = tdsqlite3DbStrDup(db, zErr);
-        v->rc = rc = tdsqlite3ApiExit(db, rc);
-      } else {
-        v->zErrMsg = 0;
-        v->rc = rc = SQLITE_NOMEM_BKPT;
-      }
-      break;
-    }
-    tdsqlite3_reset(pStmt);
-    if( savedPc>=0 ) v->doingRerun = 1;
-    assert( v->expired==0 );
-  }
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-
-/*
-** Extract the user data from a tdsqlite3_context structure and return a
-** pointer to it.
-*/
-SQLITE_API void *tdsqlite3_user_data(tdsqlite3_context *p){
-  assert( p && p->pFunc );
-  return p->pFunc->pUserData;
-}
-
-/*
-** Extract the user data from a tdsqlite3_context structure and return a
-** pointer to it.
-**
-** IMPLEMENTATION-OF: R-46798-50301 The tdsqlite3_context_db_handle() interface
-** returns a copy of the pointer to the database connection (the 1st
-** parameter) of the tdsqlite3_create_function() and
-** tdsqlite3_create_function16() routines that originally registered the
-** application defined function.
-*/
-SQLITE_API tdsqlite3 *tdsqlite3_context_db_handle(tdsqlite3_context *p){
-  assert( p && p->pOut );
-  return p->pOut->db;
-}
-
-/*
-** If this routine is invoked from within an xColumn method of a virtual
-** table, then it returns true if and only if the the call is during an
-** UPDATE operation and the value of the column will not be modified
-** by the UPDATE.
-**
-** If this routine is called from any context other than within the
-** xColumn method of a virtual table, then the return value is meaningless
-** and arbitrary.
-**
-** Virtual table implements might use this routine to optimize their
-** performance by substituting a NULL result, or some other light-weight
-** value, as a signal to the xUpdate routine that the column is unchanged.
-*/
-SQLITE_API int tdsqlite3_vtab_nochange(tdsqlite3_context *p){
-  assert( p );
-  return tdsqlite3_value_nochange(p->pOut);
-}
-
-/*
-** Return the current time for a statement.  If the current time
-** is requested more than once within the same run of a single prepared
-** statement, the exact same time is returned for each invocation regardless
-** of the amount of time that elapses between invocations.  In other words,
-** the time returned is always the time of the first call.
-*/
-SQLITE_PRIVATE tdsqlite3_int64 tdsqlite3StmtCurrentTime(tdsqlite3_context *p){
-  int rc;
-#ifndef SQLITE_ENABLE_STAT4
-  tdsqlite3_int64 *piTime = &p->pVdbe->iCurrentTime;
-  assert( p->pVdbe!=0 );
-#else
-  tdsqlite3_int64 iTime = 0;
-  tdsqlite3_int64 *piTime = p->pVdbe!=0 ? &p->pVdbe->iCurrentTime : &iTime;
-#endif
-  if( *piTime==0 ){
-    rc = tdsqlite3OsCurrentTimeInt64(p->pOut->db->pVfs, piTime);
-    if( rc ) *piTime = 0;
-  }
-  return *piTime;
-}
-
-/*
-** Create a new aggregate context for p and return a pointer to
-** its pMem->z element.
-*/
-static SQLITE_NOINLINE void *createAggContext(tdsqlite3_context *p, int nByte){
-  Mem *pMem = p->pMem;
-  assert( (pMem->flags & MEM_Agg)==0 );
-  if( nByte<=0 ){
-    tdsqlite3VdbeMemSetNull(pMem);
-    pMem->z = 0;
-  }else{
-    tdsqlite3VdbeMemClearAndResize(pMem, nByte);
-    pMem->flags = MEM_Agg;
-    pMem->u.pDef = p->pFunc;
-    if( pMem->z ){
-      memset(pMem->z, 0, nByte);
-    }
-  }
-  return (void*)pMem->z;
-}
-
-/*
-** Allocate or return the aggregate context for a user function.  A new
-** context is allocated on the first call.  Subsequent calls return the
-** same context that was returned on prior calls.
-*/
-SQLITE_API void *tdsqlite3_aggregate_context(tdsqlite3_context *p, int nByte){
-  assert( p && p->pFunc && p->pFunc->xFinalize );
-  assert( tdsqlite3_mutex_held(p->pOut->db->mutex) );
-  testcase( nByte<0 );
-  if( (p->pMem->flags & MEM_Agg)==0 ){
-    return createAggContext(p, nByte);
-  }else{
-    return (void*)p->pMem->z;
-  }
-}
-
-/*
-** Return the auxiliary data pointer, if any, for the iArg'th argument to
-** the user-function defined by pCtx.
-**
-** The left-most argument is 0.
-**
-** Undocumented behavior:  If iArg is negative then access a cache of
-** auxiliary data pointers that is available to all functions within a
-** single prepared statement.  The iArg values must match.
-*/
-SQLITE_API void *tdsqlite3_get_auxdata(tdsqlite3_context *pCtx, int iArg){
-  AuxData *pAuxData;
-
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-#if SQLITE_ENABLE_STAT4
-  if( pCtx->pVdbe==0 ) return 0;
-#else
-  assert( pCtx->pVdbe!=0 );
-#endif
-  for(pAuxData=pCtx->pVdbe->pAuxData; pAuxData; pAuxData=pAuxData->pNextAux){
-    if(  pAuxData->iAuxArg==iArg && (pAuxData->iAuxOp==pCtx->iOp || iArg<0) ){
-      return pAuxData->pAux;
-    }
-  }
-  return 0;
-}
-
-/*
-** Set the auxiliary data pointer and delete function, for the iArg'th
-** argument to the user-function defined by pCtx. Any previous value is
-** deleted by calling the delete function specified when it was set.
-**
-** The left-most argument is 0.
-**
-** Undocumented behavior:  If iArg is negative then make the data available
-** to all functions within the current prepared statement using iArg as an
-** access code.
-*/
-SQLITE_API void tdsqlite3_set_auxdata(
-  tdsqlite3_context *pCtx, 
-  int iArg, 
-  void *pAux, 
-  void (*xDelete)(void*)
-){
-  AuxData *pAuxData;
-  Vdbe *pVdbe = pCtx->pVdbe;
-
-  assert( tdsqlite3_mutex_held(pCtx->pOut->db->mutex) );
-#ifdef SQLITE_ENABLE_STAT4
-  if( pVdbe==0 ) goto failed;
-#else
-  assert( pVdbe!=0 );
-#endif
-
-  for(pAuxData=pVdbe->pAuxData; pAuxData; pAuxData=pAuxData->pNextAux){
-    if( pAuxData->iAuxArg==iArg && (pAuxData->iAuxOp==pCtx->iOp || iArg<0) ){
-      break;
-    }
-  }
-  if( pAuxData==0 ){
-    pAuxData = tdsqlite3DbMallocZero(pVdbe->db, sizeof(AuxData));
-    if( !pAuxData ) goto failed;
-    pAuxData->iAuxOp = pCtx->iOp;
-    pAuxData->iAuxArg = iArg;
-    pAuxData->pNextAux = pVdbe->pAuxData;
-    pVdbe->pAuxData = pAuxData;
-    if( pCtx->isError==0 ) pCtx->isError = -1;
-  }else if( pAuxData->xDeleteAux ){
-    pAuxData->xDeleteAux(pAuxData->pAux);
-  }
-
-  pAuxData->pAux = pAux;
-  pAuxData->xDeleteAux = xDelete;
-  return;
-
-failed:
-  if( xDelete ){
-    xDelete(pAux);
-  }
-}
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/*
-** Return the number of times the Step function of an aggregate has been 
-** called.
-**
-** This function is deprecated.  Do not use it for new code.  It is
-** provide only to avoid breaking legacy code.  New aggregate function
-** implementations should keep their own counts within their aggregate
-** context.
-*/
-SQLITE_API int tdsqlite3_aggregate_count(tdsqlite3_context *p){
-  assert( p && p->pMem && p->pFunc && p->pFunc->xFinalize );
-  return p->pMem->n;
-}
-#endif
-
-/*
-** Return the number of columns in the result set for the statement pStmt.
-*/
-SQLITE_API int tdsqlite3_column_count(tdsqlite3_stmt *pStmt){
-  Vdbe *pVm = (Vdbe *)pStmt;
-  return pVm ? pVm->nResColumn : 0;
-}
-
-/*
-** Return the number of values available from the current row of the
-** currently executing statement pStmt.
-*/
-SQLITE_API int tdsqlite3_data_count(tdsqlite3_stmt *pStmt){
-  Vdbe *pVm = (Vdbe *)pStmt;
-  if( pVm==0 || pVm->pResultSet==0 ) return 0;
-  return pVm->nResColumn;
-}
-
-/*
-** Return a pointer to static memory containing an SQL NULL value.
-*/
-static const Mem *columnNullValue(void){
-  /* Even though the Mem structure contains an element
-  ** of type i64, on certain architectures (x86) with certain compiler
-  ** switches (-Os), gcc may align this Mem object on a 4-byte boundary
-  ** instead of an 8-byte one. This all works fine, except that when
-  ** running with SQLITE_DEBUG defined the SQLite code sometimes assert()s
-  ** that a Mem structure is located on an 8-byte boundary. To prevent
-  ** these assert()s from failing, when building with SQLITE_DEBUG defined
-  ** using gcc, we force nullMem to be 8-byte aligned using the magical
-  ** __attribute__((aligned(8))) macro.  */
-  static const Mem nullMem 
-#if defined(SQLITE_DEBUG) && defined(__GNUC__)
-    __attribute__((aligned(8))) 
-#endif
-    = {
-        /* .u          = */ {0},
-        /* .flags      = */ (u16)MEM_Null,
-        /* .enc        = */ (u8)0,
-        /* .eSubtype   = */ (u8)0,
-        /* .n          = */ (int)0,
-        /* .z          = */ (char*)0,
-        /* .zMalloc    = */ (char*)0,
-        /* .szMalloc   = */ (int)0,
-        /* .uTemp      = */ (u32)0,
-        /* .db         = */ (tdsqlite3*)0,
-        /* .xDel       = */ (void(*)(void*))0,
-#ifdef SQLITE_DEBUG
-        /* .pScopyFrom = */ (Mem*)0,
-        /* .mScopyFlags= */ 0,
-#endif
-      };
-  return &nullMem;
-}
-
-/*
-** Check to see if column iCol of the given statement is valid.  If
-** it is, return a pointer to the Mem for the value of that column.
-** If iCol is not valid, return a pointer to a Mem which has a value
-** of NULL.
-*/
-static Mem *columnMem(tdsqlite3_stmt *pStmt, int i){
-  Vdbe *pVm;
-  Mem *pOut;
-
-  pVm = (Vdbe *)pStmt;
-  if( pVm==0 ) return (Mem*)columnNullValue();
-  assert( pVm->db );
-  tdsqlite3_mutex_enter(pVm->db->mutex);
-  if( pVm->pResultSet!=0 && i<pVm->nResColumn && i>=0 ){
-    pOut = &pVm->pResultSet[i];
-  }else{
-    tdsqlite3Error(pVm->db, SQLITE_RANGE);
-    pOut = (Mem*)columnNullValue();
-  }
-  return pOut;
-}
-
-/*
-** This function is called after invoking an tdsqlite3_value_XXX function on a 
-** column value (i.e. a value returned by evaluating an SQL expression in the
-** select list of a SELECT statement) that may cause a malloc() failure. If 
-** malloc() has failed, the threads mallocFailed flag is cleared and the result
-** code of statement pStmt set to SQLITE_NOMEM.
-**
-** Specifically, this is called from within:
-**
-**     tdsqlite3_column_int()
-**     tdsqlite3_column_int64()
-**     tdsqlite3_column_text()
-**     tdsqlite3_column_text16()
-**     tdsqlite3_column_real()
-**     tdsqlite3_column_bytes()
-**     tdsqlite3_column_bytes16()
-**     sqiite3_column_blob()
-*/
-static void columnMallocFailure(tdsqlite3_stmt *pStmt)
-{
-  /* If malloc() failed during an encoding conversion within an
-  ** tdsqlite3_column_XXX API, then set the return code of the statement to
-  ** SQLITE_NOMEM. The next call to _step() (if any) will return SQLITE_ERROR
-  ** and _finalize() will return NOMEM.
-  */
-  Vdbe *p = (Vdbe *)pStmt;
-  if( p ){
-    assert( p->db!=0 );
-    assert( tdsqlite3_mutex_held(p->db->mutex) );
-    p->rc = tdsqlite3ApiExit(p->db, p->rc);
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }
-}
-
-/**************************** tdsqlite3_column_  *******************************
-** The following routines are used to access elements of the current row
-** in the result set.
-*/
-SQLITE_API const void *tdsqlite3_column_blob(tdsqlite3_stmt *pStmt, int i){
-  const void *val;
-  val = tdsqlite3_value_blob( columnMem(pStmt,i) );
-  /* Even though there is no encoding conversion, value_blob() might
-  ** need to call malloc() to expand the result of a zeroblob() 
-  ** expression. 
-  */
-  columnMallocFailure(pStmt);
-  return val;
-}
-SQLITE_API int tdsqlite3_column_bytes(tdsqlite3_stmt *pStmt, int i){
-  int val = tdsqlite3_value_bytes( columnMem(pStmt,i) );
-  columnMallocFailure(pStmt);
-  return val;
-}
-SQLITE_API int tdsqlite3_column_bytes16(tdsqlite3_stmt *pStmt, int i){
-  int val = tdsqlite3_value_bytes16( columnMem(pStmt,i) );
-  columnMallocFailure(pStmt);
-  return val;
-}
-SQLITE_API double tdsqlite3_column_double(tdsqlite3_stmt *pStmt, int i){
-  double val = tdsqlite3_value_double( columnMem(pStmt,i) );
-  columnMallocFailure(pStmt);
-  return val;
-}
-SQLITE_API int tdsqlite3_column_int(tdsqlite3_stmt *pStmt, int i){
-  int val = tdsqlite3_value_int( columnMem(pStmt,i) );
-  columnMallocFailure(pStmt);
-  return val;
-}
-SQLITE_API sqlite_int64 tdsqlite3_column_int64(tdsqlite3_stmt *pStmt, int i){
-  sqlite_int64 val = tdsqlite3_value_int64( columnMem(pStmt,i) );
-  columnMallocFailure(pStmt);
-  return val;
-}
-SQLITE_API const unsigned char *tdsqlite3_column_text(tdsqlite3_stmt *pStmt, int i){
-  const unsigned char *val = tdsqlite3_value_text( columnMem(pStmt,i) );
-  columnMallocFailure(pStmt);
-  return val;
-}
-SQLITE_API tdsqlite3_value *tdsqlite3_column_value(tdsqlite3_stmt *pStmt, int i){
-  Mem *pOut = columnMem(pStmt, i);
-  if( pOut->flags&MEM_Static ){
-    pOut->flags &= ~MEM_Static;
-    pOut->flags |= MEM_Ephem;
-  }
-  columnMallocFailure(pStmt);
-  return (tdsqlite3_value *)pOut;
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API const void *tdsqlite3_column_text16(tdsqlite3_stmt *pStmt, int i){
-  const void *val = tdsqlite3_value_text16( columnMem(pStmt,i) );
-  columnMallocFailure(pStmt);
-  return val;
-}
-#endif /* SQLITE_OMIT_UTF16 */
-SQLITE_API int tdsqlite3_column_type(tdsqlite3_stmt *pStmt, int i){
-  int iType = tdsqlite3_value_type( columnMem(pStmt,i) );
-  columnMallocFailure(pStmt);
-  return iType;
-}
-
-/*
-** Convert the N-th element of pStmt->pColName[] into a string using
-** xFunc() then return that string.  If N is out of range, return 0.
-**
-** There are up to 5 names for each column.  useType determines which
-** name is returned.  Here are the names:
-**
-**    0      The column name as it should be displayed for output
-**    1      The datatype name for the column
-**    2      The name of the database that the column derives from
-**    3      The name of the table that the column derives from
-**    4      The name of the table column that the result column derives from
-**
-** If the result is not a simple column reference (if it is an expression
-** or a constant) then useTypes 2, 3, and 4 return NULL.
-*/
-static const void *columnName(
-  tdsqlite3_stmt *pStmt,     /* The statement */
-  int N,                   /* Which column to get the name for */
-  int useUtf16,            /* True to return the name as UTF16 */
-  int useType              /* What type of name */
-){
-  const void *ret;
-  Vdbe *p;
-  int n;
-  tdsqlite3 *db;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( pStmt==0 ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  ret = 0;
-  p = (Vdbe *)pStmt;
-  db = p->db;
-  assert( db!=0 );
-  n = tdsqlite3_column_count(pStmt);
-  if( N<n && N>=0 ){
-    N += useType*n;
-    tdsqlite3_mutex_enter(db->mutex);
-    assert( db->mallocFailed==0 );
-#ifndef SQLITE_OMIT_UTF16
-    if( useUtf16 ){
-      ret = tdsqlite3_value_text16((tdsqlite3_value*)&p->aColName[N]);
-    }else
-#endif
-    {
-      ret = tdsqlite3_value_text((tdsqlite3_value*)&p->aColName[N]);
-    }
-    /* A malloc may have failed inside of the _text() call. If this
-    ** is the case, clear the mallocFailed flag and return NULL.
-    */
-    if( db->mallocFailed ){
-      tdsqlite3OomClear(db);
-      ret = 0;
-    }
-    tdsqlite3_mutex_leave(db->mutex);
-  }
-  return ret;
-}
-
-/*
-** Return the name of the Nth column of the result set returned by SQL
-** statement pStmt.
-*/
-SQLITE_API const char *tdsqlite3_column_name(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 0, COLNAME_NAME);
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API const void *tdsqlite3_column_name16(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 1, COLNAME_NAME);
-}
-#endif
-
-/*
-** Constraint:  If you have ENABLE_COLUMN_METADATA then you must
-** not define OMIT_DECLTYPE.
-*/
-#if defined(SQLITE_OMIT_DECLTYPE) && defined(SQLITE_ENABLE_COLUMN_METADATA)
-# error "Must not define both SQLITE_OMIT_DECLTYPE \
-         and SQLITE_ENABLE_COLUMN_METADATA"
-#endif
-
-#ifndef SQLITE_OMIT_DECLTYPE
-/*
-** Return the column declaration type (if applicable) of the 'i'th column
-** of the result set of SQL statement pStmt.
-*/
-SQLITE_API const char *tdsqlite3_column_decltype(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 0, COLNAME_DECLTYPE);
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API const void *tdsqlite3_column_decltype16(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 1, COLNAME_DECLTYPE);
-}
-#endif /* SQLITE_OMIT_UTF16 */
-#endif /* SQLITE_OMIT_DECLTYPE */
-
-#ifdef SQLITE_ENABLE_COLUMN_METADATA
-/*
-** Return the name of the database from which a result column derives.
-** NULL is returned if the result column is an expression or constant or
-** anything else which is not an unambiguous reference to a database column.
-*/
-SQLITE_API const char *tdsqlite3_column_database_name(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 0, COLNAME_DATABASE);
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API const void *tdsqlite3_column_database_name16(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 1, COLNAME_DATABASE);
-}
-#endif /* SQLITE_OMIT_UTF16 */
-
-/*
-** Return the name of the table from which a result column derives.
-** NULL is returned if the result column is an expression or constant or
-** anything else which is not an unambiguous reference to a database column.
-*/
-SQLITE_API const char *tdsqlite3_column_table_name(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 0, COLNAME_TABLE);
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API const void *tdsqlite3_column_table_name16(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 1, COLNAME_TABLE);
-}
-#endif /* SQLITE_OMIT_UTF16 */
-
-/*
-** Return the name of the table column from which a result column derives.
-** NULL is returned if the result column is an expression or constant or
-** anything else which is not an unambiguous reference to a database column.
-*/
-SQLITE_API const char *tdsqlite3_column_origin_name(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 0, COLNAME_COLUMN);
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API const void *tdsqlite3_column_origin_name16(tdsqlite3_stmt *pStmt, int N){
-  return columnName(pStmt, N, 1, COLNAME_COLUMN);
-}
-#endif /* SQLITE_OMIT_UTF16 */
-#endif /* SQLITE_ENABLE_COLUMN_METADATA */
-
-
-/******************************* tdsqlite3_bind_  ***************************
-** 
-** Routines used to attach values to wildcards in a compiled SQL statement.
-*/
-/*
-** Unbind the value bound to variable i in virtual machine p. This is the 
-** the same as binding a NULL value to the column. If the "i" parameter is
-** out of range, then SQLITE_RANGE is returned. Othewise SQLITE_OK.
-**
-** A successful evaluation of this routine acquires the mutex on p.
-** the mutex is released if any kind of error occurs.
-**
-** The error code stored in database p->db is overwritten with the return
-** value in any case.
-*/
-static int vdbeUnbind(Vdbe *p, int i){
-  Mem *pVar;
-  if( vdbeSafetyNotNull(p) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-  tdsqlite3_mutex_enter(p->db->mutex);
-  if( p->magic!=VDBE_MAGIC_RUN || p->pc>=0 ){
-    tdsqlite3Error(p->db, SQLITE_MISUSE);
-    tdsqlite3_mutex_leave(p->db->mutex);
-    tdsqlite3_log(SQLITE_MISUSE, 
-        "bind on a busy prepared statement: [%s]", p->zSql);
-    return SQLITE_MISUSE_BKPT;
-  }
-  if( i<1 || i>p->nVar ){
-    tdsqlite3Error(p->db, SQLITE_RANGE);
-    tdsqlite3_mutex_leave(p->db->mutex);
-    return SQLITE_RANGE;
-  }
-  i--;
-  pVar = &p->aVar[i];
-  tdsqlite3VdbeMemRelease(pVar);
-  pVar->flags = MEM_Null;
-  p->db->errCode = SQLITE_OK;
-
-  /* If the bit corresponding to this variable in Vdbe.expmask is set, then 
-  ** binding a new value to this variable invalidates the current query plan.
-  **
-  ** IMPLEMENTATION-OF: R-48440-37595 If the specific value bound to host
-  ** parameter in the WHERE clause might influence the choice of query plan
-  ** for a statement, then the statement will be automatically recompiled,
-  ** as if there had been a schema change, on the first tdsqlite3_step() call
-  ** following any change to the bindings of that parameter.
-  */
-  assert( (p->prepFlags & SQLITE_PREPARE_SAVESQL)!=0 || p->expmask==0 );
-  if( p->expmask!=0 && (p->expmask & (i>=31 ? 0x80000000 : (u32)1<<i))!=0 ){
-    p->expired = 1;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Bind a text or BLOB value.
-*/
-static int bindText(
-  tdsqlite3_stmt *pStmt,   /* The statement to bind against */
-  int i,                 /* Index of the parameter to bind */
-  const void *zData,     /* Pointer to the data to be bound */
-  int nData,             /* Number of bytes of data to be bound */
-  void (*xDel)(void*),   /* Destructor for the data */
-  u8 encoding            /* Encoding for the data */
-){
-  Vdbe *p = (Vdbe *)pStmt;
-  Mem *pVar;
-  int rc;
-
-  rc = vdbeUnbind(p, i);
-  if( rc==SQLITE_OK ){
-    if( zData!=0 ){
-      pVar = &p->aVar[i-1];
-      rc = tdsqlite3VdbeMemSetStr(pVar, zData, nData, encoding, xDel);
-      if( rc==SQLITE_OK && encoding!=0 ){
-        rc = tdsqlite3VdbeChangeEncoding(pVar, ENC(p->db));
-      }
-      if( rc ){
-        tdsqlite3Error(p->db, rc);
-        rc = tdsqlite3ApiExit(p->db, rc);
-      }
-    }
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }else if( xDel!=SQLITE_STATIC && xDel!=SQLITE_TRANSIENT ){
-    xDel((void*)zData);
-  }
-  return rc;
-}
-
-
-/*
-** Bind a blob value to an SQL statement variable.
-*/
-SQLITE_API int tdsqlite3_bind_blob(
-  tdsqlite3_stmt *pStmt, 
-  int i, 
-  const void *zData, 
-  int nData, 
-  void (*xDel)(void*)
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( nData<0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  return bindText(pStmt, i, zData, nData, xDel, 0);
-}
-SQLITE_API int tdsqlite3_bind_blob64(
-  tdsqlite3_stmt *pStmt, 
-  int i, 
-  const void *zData, 
-  tdsqlite3_uint64 nData, 
-  void (*xDel)(void*)
-){
-  assert( xDel!=SQLITE_DYNAMIC );
-  if( nData>0x7fffffff ){
-    return invokeValueDestructor(zData, xDel, 0);
-  }else{
-    return bindText(pStmt, i, zData, (int)nData, xDel, 0);
-  }
-}
-SQLITE_API int tdsqlite3_bind_double(tdsqlite3_stmt *pStmt, int i, double rValue){
-  int rc;
-  Vdbe *p = (Vdbe *)pStmt;
-  rc = vdbeUnbind(p, i);
-  if( rc==SQLITE_OK ){
-    tdsqlite3VdbeMemSetDouble(&p->aVar[i-1], rValue);
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }
-  return rc;
-}
-SQLITE_API int tdsqlite3_bind_int(tdsqlite3_stmt *p, int i, int iValue){
-  return tdsqlite3_bind_int64(p, i, (i64)iValue);
-}
-SQLITE_API int tdsqlite3_bind_int64(tdsqlite3_stmt *pStmt, int i, sqlite_int64 iValue){
-  int rc;
-  Vdbe *p = (Vdbe *)pStmt;
-  rc = vdbeUnbind(p, i);
-  if( rc==SQLITE_OK ){
-    tdsqlite3VdbeMemSetInt64(&p->aVar[i-1], iValue);
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }
-  return rc;
-}
-SQLITE_API int tdsqlite3_bind_null(tdsqlite3_stmt *pStmt, int i){
-  int rc;
-  Vdbe *p = (Vdbe*)pStmt;
-  rc = vdbeUnbind(p, i);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }
-  return rc;
-}
-SQLITE_API int tdsqlite3_bind_pointer(
-  tdsqlite3_stmt *pStmt,
-  int i,
-  void *pPtr,
-  const char *zPTtype,
-  void (*xDestructor)(void*)
-){
-  int rc;
-  Vdbe *p = (Vdbe*)pStmt;
-  rc = vdbeUnbind(p, i);
-  if( rc==SQLITE_OK ){
-    tdsqlite3VdbeMemSetPointer(&p->aVar[i-1], pPtr, zPTtype, xDestructor);
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }else if( xDestructor ){
-    xDestructor(pPtr);
-  }
-  return rc;
-}
-SQLITE_API int tdsqlite3_bind_text( 
-  tdsqlite3_stmt *pStmt, 
-  int i, 
-  const char *zData, 
-  int nData, 
-  void (*xDel)(void*)
-){
-  return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF8);
-}
-SQLITE_API int tdsqlite3_bind_text64( 
-  tdsqlite3_stmt *pStmt, 
-  int i, 
-  const char *zData, 
-  tdsqlite3_uint64 nData, 
-  void (*xDel)(void*),
-  unsigned char enc
-){
-  assert( xDel!=SQLITE_DYNAMIC );
-  if( nData>0x7fffffff ){
-    return invokeValueDestructor(zData, xDel, 0);
-  }else{
-    if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE;
-    return bindText(pStmt, i, zData, (int)nData, xDel, enc);
-  }
-}
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API int tdsqlite3_bind_text16(
-  tdsqlite3_stmt *pStmt, 
-  int i, 
-  const void *zData, 
-  int nData, 
-  void (*xDel)(void*)
-){
-  return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF16NATIVE);
-}
-#endif /* SQLITE_OMIT_UTF16 */
-SQLITE_API int tdsqlite3_bind_value(tdsqlite3_stmt *pStmt, int i, const tdsqlite3_value *pValue){
-  int rc;
-  switch( tdsqlite3_value_type((tdsqlite3_value*)pValue) ){
-    case SQLITE_INTEGER: {
-      rc = tdsqlite3_bind_int64(pStmt, i, pValue->u.i);
-      break;
-    }
-    case SQLITE_FLOAT: {
-      rc = tdsqlite3_bind_double(pStmt, i, pValue->u.r);
-      break;
-    }
-    case SQLITE_BLOB: {
-      if( pValue->flags & MEM_Zero ){
-        rc = tdsqlite3_bind_zeroblob(pStmt, i, pValue->u.nZero);
-      }else{
-        rc = tdsqlite3_bind_blob(pStmt, i, pValue->z, pValue->n,SQLITE_TRANSIENT);
-      }
-      break;
-    }
-    case SQLITE_TEXT: {
-      rc = bindText(pStmt,i,  pValue->z, pValue->n, SQLITE_TRANSIENT,
-                              pValue->enc);
-      break;
-    }
-    default: {
-      rc = tdsqlite3_bind_null(pStmt, i);
-      break;
-    }
-  }
-  return rc;
-}
-SQLITE_API int tdsqlite3_bind_zeroblob(tdsqlite3_stmt *pStmt, int i, int n){
-  int rc;
-  Vdbe *p = (Vdbe *)pStmt;
-  rc = vdbeUnbind(p, i);
-  if( rc==SQLITE_OK ){
-    tdsqlite3VdbeMemSetZeroBlob(&p->aVar[i-1], n);
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }
-  return rc;
-}
-SQLITE_API int tdsqlite3_bind_zeroblob64(tdsqlite3_stmt *pStmt, int i, tdsqlite3_uint64 n){
-  int rc;
-  Vdbe *p = (Vdbe *)pStmt;
-  tdsqlite3_mutex_enter(p->db->mutex);
-  if( n>(u64)p->db->aLimit[SQLITE_LIMIT_LENGTH] ){
-    rc = SQLITE_TOOBIG;
-  }else{
-    assert( (n & 0x7FFFFFFF)==n );
-    rc = tdsqlite3_bind_zeroblob(pStmt, i, n);
-  }
-  rc = tdsqlite3ApiExit(p->db, rc);
-  tdsqlite3_mutex_leave(p->db->mutex);
-  return rc;
-}
-
-/*
-** Return the number of wildcards that can be potentially bound to.
-** This routine is added to support DBD::SQLite.  
-*/
-SQLITE_API int tdsqlite3_bind_parameter_count(tdsqlite3_stmt *pStmt){
-  Vdbe *p = (Vdbe*)pStmt;
-  return p ? p->nVar : 0;
-}
-
-/*
-** Return the name of a wildcard parameter.  Return NULL if the index
-** is out of range or if the wildcard is unnamed.
-**
-** The result is always UTF-8.
-*/
-SQLITE_API const char *tdsqlite3_bind_parameter_name(tdsqlite3_stmt *pStmt, int i){
-  Vdbe *p = (Vdbe*)pStmt;
-  if( p==0 ) return 0;
-  return tdsqlite3VListNumToName(p->pVList, i);
-}
-
-/*
-** Given a wildcard parameter name, return the index of the variable
-** with that name.  If there is no variable with the given name,
-** return 0.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeParameterIndex(Vdbe *p, const char *zName, int nName){
-  if( p==0 || zName==0 ) return 0;
-  return tdsqlite3VListNameToNum(p->pVList, zName, nName);
-}
-SQLITE_API int tdsqlite3_bind_parameter_index(tdsqlite3_stmt *pStmt, const char *zName){
-  return tdsqlite3VdbeParameterIndex((Vdbe*)pStmt, zName, tdsqlite3Strlen30(zName));
-}
-
-/*
-** Transfer all bindings from the first statement over to the second.
-*/
-SQLITE_PRIVATE int tdsqlite3TransferBindings(tdsqlite3_stmt *pFromStmt, tdsqlite3_stmt *pToStmt){
-  Vdbe *pFrom = (Vdbe*)pFromStmt;
-  Vdbe *pTo = (Vdbe*)pToStmt;
-  int i;
-  assert( pTo->db==pFrom->db );
-  assert( pTo->nVar==pFrom->nVar );
-  tdsqlite3_mutex_enter(pTo->db->mutex);
-  for(i=0; i<pFrom->nVar; i++){
-    tdsqlite3VdbeMemMove(&pTo->aVar[i], &pFrom->aVar[i]);
-  }
-  tdsqlite3_mutex_leave(pTo->db->mutex);
-  return SQLITE_OK;
-}
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/*
-** Deprecated external interface.  Internal/core SQLite code
-** should call tdsqlite3TransferBindings.
-**
-** It is misuse to call this routine with statements from different
-** database connections.  But as this is a deprecated interface, we
-** will not bother to check for that condition.
-**
-** If the two statements contain a different number of bindings, then
-** an SQLITE_ERROR is returned.  Nothing else can go wrong, so otherwise
-** SQLITE_OK is returned.
-*/
-SQLITE_API int tdsqlite3_transfer_bindings(tdsqlite3_stmt *pFromStmt, tdsqlite3_stmt *pToStmt){
-  Vdbe *pFrom = (Vdbe*)pFromStmt;
-  Vdbe *pTo = (Vdbe*)pToStmt;
-  if( pFrom->nVar!=pTo->nVar ){
-    return SQLITE_ERROR;
-  }
-  assert( (pTo->prepFlags & SQLITE_PREPARE_SAVESQL)!=0 || pTo->expmask==0 );
-  if( pTo->expmask ){
-    pTo->expired = 1;
-  }
-  assert( (pFrom->prepFlags & SQLITE_PREPARE_SAVESQL)!=0 || pFrom->expmask==0 );
-  if( pFrom->expmask ){
-    pFrom->expired = 1;
-  }
-  return tdsqlite3TransferBindings(pFromStmt, pToStmt);
-}
-#endif
-
-/*
-** Return the tdsqlite3* database handle to which the prepared statement given
-** in the argument belongs.  This is the same database handle that was
-** the first argument to the tdsqlite3_prepare() that was used to create
-** the statement in the first place.
-*/
-SQLITE_API tdsqlite3 *tdsqlite3_db_handle(tdsqlite3_stmt *pStmt){
-  return pStmt ? ((Vdbe*)pStmt)->db : 0;
-}
-
-/*
-** Return true if the prepared statement is guaranteed to not modify the
-** database.
-*/
-SQLITE_API int tdsqlite3_stmt_readonly(tdsqlite3_stmt *pStmt){
-  return pStmt ? ((Vdbe*)pStmt)->readOnly : 1;
-}
-
-/*
-** Return 1 if the statement is an EXPLAIN and return 2 if the
-** statement is an EXPLAIN QUERY PLAN
-*/
-SQLITE_API int tdsqlite3_stmt_isexplain(tdsqlite3_stmt *pStmt){
-  return pStmt ? ((Vdbe*)pStmt)->explain : 0;
-}
-
-/*
-** Return true if the prepared statement is in need of being reset.
-*/
-SQLITE_API int tdsqlite3_stmt_busy(tdsqlite3_stmt *pStmt){
-  Vdbe *v = (Vdbe*)pStmt;
-  return v!=0 && v->magic==VDBE_MAGIC_RUN && v->pc>=0;
-}
-
-/*
-** Return a pointer to the next prepared statement after pStmt associated
-** with database connection pDb.  If pStmt is NULL, return the first
-** prepared statement for the database connection.  Return NULL if there
-** are no more.
-*/
-SQLITE_API tdsqlite3_stmt *tdsqlite3_next_stmt(tdsqlite3 *pDb, tdsqlite3_stmt *pStmt){
-  tdsqlite3_stmt *pNext;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(pDb) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  tdsqlite3_mutex_enter(pDb->mutex);
-  if( pStmt==0 ){
-    pNext = (tdsqlite3_stmt*)pDb->pVdbe;
-  }else{
-    pNext = (tdsqlite3_stmt*)((Vdbe*)pStmt)->pNext;
-  }
-  tdsqlite3_mutex_leave(pDb->mutex);
-  return pNext;
-}
-
-/*
-** Return the value of a status counter for a prepared statement
-*/
-SQLITE_API int tdsqlite3_stmt_status(tdsqlite3_stmt *pStmt, int op, int resetFlag){
-  Vdbe *pVdbe = (Vdbe*)pStmt;
-  u32 v;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !pStmt 
-   || (op!=SQLITE_STMTSTATUS_MEMUSED && (op<0||op>=ArraySize(pVdbe->aCounter)))
-  ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  if( op==SQLITE_STMTSTATUS_MEMUSED ){
-    tdsqlite3 *db = pVdbe->db;
-    tdsqlite3_mutex_enter(db->mutex);
-    v = 0;
-    db->pnBytesFreed = (int*)&v;
-    tdsqlite3VdbeClearObject(db, pVdbe);
-    tdsqlite3DbFree(db, pVdbe);
-    db->pnBytesFreed = 0;
-    tdsqlite3_mutex_leave(db->mutex);
-  }else{
-    v = pVdbe->aCounter[op];
-    if( resetFlag ) pVdbe->aCounter[op] = 0;
-  }
-  return (int)v;
-}
-
-/*
-** Return the SQL associated with a prepared statement
-*/
-SQLITE_API const char *tdsqlite3_sql(tdsqlite3_stmt *pStmt){
-  Vdbe *p = (Vdbe *)pStmt;
-  return p ? p->zSql : 0;
-}
-
-/*
-** Return the SQL associated with a prepared statement with
-** bound parameters expanded.  Space to hold the returned string is
-** obtained from tdsqlite3_malloc().  The caller is responsible for
-** freeing the returned string by passing it to tdsqlite3_free().
-**
-** The SQLITE_TRACE_SIZE_LIMIT puts an upper bound on the size of
-** expanded bound parameters.
-*/
-SQLITE_API char *tdsqlite3_expanded_sql(tdsqlite3_stmt *pStmt){
-#ifdef SQLITE_OMIT_TRACE
-  return 0;
-#else
-  char *z = 0;
-  const char *zSql = tdsqlite3_sql(pStmt);
-  if( zSql ){
-    Vdbe *p = (Vdbe *)pStmt;
-    tdsqlite3_mutex_enter(p->db->mutex);
-    z = tdsqlite3VdbeExpandSql(p, zSql);
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }
-  return z;
-#endif
-}
-
-#ifdef SQLITE_ENABLE_NORMALIZE
-/*
-** Return the normalized SQL associated with a prepared statement.
-*/
-SQLITE_API const char *tdsqlite3_normalized_sql(tdsqlite3_stmt *pStmt){
-  Vdbe *p = (Vdbe *)pStmt;
-  if( p==0 ) return 0;
-  if( p->zNormSql==0 && ALWAYS(p->zSql!=0) ){
-    tdsqlite3_mutex_enter(p->db->mutex);
-    p->zNormSql = tdsqlite3Normalize(p, p->zSql);
-    tdsqlite3_mutex_leave(p->db->mutex);
-  }
-  return p->zNormSql;
-}
-#endif /* SQLITE_ENABLE_NORMALIZE */
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-/*
-** Allocate and populate an UnpackedRecord structure based on the serialized
-** record in nKey/pKey. Return a pointer to the new UnpackedRecord structure
-** if successful, or a NULL pointer if an OOM error is encountered.
-*/
-static UnpackedRecord *vdbeUnpackRecord(
-  KeyInfo *pKeyInfo, 
-  int nKey, 
-  const void *pKey
-){
-  UnpackedRecord *pRet;           /* Return value */
-
-  pRet = tdsqlite3VdbeAllocUnpackedRecord(pKeyInfo);
-  if( pRet ){
-    memset(pRet->aMem, 0, sizeof(Mem)*(pKeyInfo->nKeyField+1));
-    tdsqlite3VdbeRecordUnpack(pKeyInfo, nKey, pKey, pRet);
-  }
-  return pRet;
-}
-
-/*
-** This function is called from within a pre-update callback to retrieve
-** a field of the row currently being updated or deleted.
-*/
-SQLITE_API int tdsqlite3_preupdate_old(tdsqlite3 *db, int iIdx, tdsqlite3_value **ppValue){
-  PreUpdate *p = db->pPreUpdate;
-  Mem *pMem;
-  int rc = SQLITE_OK;
-
-  /* Test that this call is being made from within an SQLITE_DELETE or
-  ** SQLITE_UPDATE pre-update callback, and that iIdx is within range. */
-  if( !p || p->op==SQLITE_INSERT ){
-    rc = SQLITE_MISUSE_BKPT;
-    goto preupdate_old_out;
-  }
-  if( p->pPk ){
-    iIdx = tdsqlite3TableColumnToIndex(p->pPk, iIdx);
-  }
-  if( iIdx>=p->pCsr->nField || iIdx<0 ){
-    rc = SQLITE_RANGE;
-    goto preupdate_old_out;
-  }
-
-  /* If the old.* record has not yet been loaded into memory, do so now. */
-  if( p->pUnpacked==0 ){
-    u32 nRec;
-    u8 *aRec;
-
-    nRec = tdsqlite3BtreePayloadSize(p->pCsr->uc.pCursor);
-    aRec = tdsqlite3DbMallocRaw(db, nRec);
-    if( !aRec ) goto preupdate_old_out;
-    rc = tdsqlite3BtreePayload(p->pCsr->uc.pCursor, 0, nRec, aRec);
-    if( rc==SQLITE_OK ){
-      p->pUnpacked = vdbeUnpackRecord(&p->keyinfo, nRec, aRec);
-      if( !p->pUnpacked ) rc = SQLITE_NOMEM;
-    }
-    if( rc!=SQLITE_OK ){
-      tdsqlite3DbFree(db, aRec);
-      goto preupdate_old_out;
-    }
-    p->aRecord = aRec;
-  }
-
-  pMem = *ppValue = &p->pUnpacked->aMem[iIdx];
-  if( iIdx==p->pTab->iPKey ){
-    tdsqlite3VdbeMemSetInt64(pMem, p->iKey1);
-  }else if( iIdx>=p->pUnpacked->nField ){
-    *ppValue = (tdsqlite3_value *)columnNullValue();
-  }else if( p->pTab->aCol[iIdx].affinity==SQLITE_AFF_REAL ){
-    if( pMem->flags & (MEM_Int|MEM_IntReal) ){
-      testcase( pMem->flags & MEM_Int );
-      testcase( pMem->flags & MEM_IntReal );
-      tdsqlite3VdbeMemRealify(pMem);
-    }
-  }
-
- preupdate_old_out:
-  tdsqlite3Error(db, rc);
-  return tdsqlite3ApiExit(db, rc);
-}
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-/*
-** This function is called from within a pre-update callback to retrieve
-** the number of columns in the row being updated, deleted or inserted.
-*/
-SQLITE_API int tdsqlite3_preupdate_count(tdsqlite3 *db){
-  PreUpdate *p = db->pPreUpdate;
-  return (p ? p->keyinfo.nKeyField : 0);
-}
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-/*
-** This function is designed to be called from within a pre-update callback
-** only. It returns zero if the change that caused the callback was made
-** immediately by a user SQL statement. Or, if the change was made by a
-** trigger program, it returns the number of trigger programs currently
-** on the stack (1 for a top-level trigger, 2 for a trigger fired by a 
-** top-level trigger etc.).
-**
-** For the purposes of the previous paragraph, a foreign key CASCADE, SET NULL
-** or SET DEFAULT action is considered a trigger.
-*/
-SQLITE_API int tdsqlite3_preupdate_depth(tdsqlite3 *db){
-  PreUpdate *p = db->pPreUpdate;
-  return (p ? p->v->nFrame : 0);
-}
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-/*
-** This function is called from within a pre-update callback to retrieve
-** a field of the row currently being updated or inserted.
-*/
-SQLITE_API int tdsqlite3_preupdate_new(tdsqlite3 *db, int iIdx, tdsqlite3_value **ppValue){
-  PreUpdate *p = db->pPreUpdate;
-  int rc = SQLITE_OK;
-  Mem *pMem;
-
-  if( !p || p->op==SQLITE_DELETE ){
-    rc = SQLITE_MISUSE_BKPT;
-    goto preupdate_new_out;
-  }
-  if( p->pPk && p->op!=SQLITE_UPDATE ){
-    iIdx = tdsqlite3TableColumnToIndex(p->pPk, iIdx);
-  }
-  if( iIdx>=p->pCsr->nField || iIdx<0 ){
-    rc = SQLITE_RANGE;
-    goto preupdate_new_out;
-  }
-
-  if( p->op==SQLITE_INSERT ){
-    /* For an INSERT, memory cell p->iNewReg contains the serialized record
-    ** that is being inserted. Deserialize it. */
-    UnpackedRecord *pUnpack = p->pNewUnpacked;
-    if( !pUnpack ){
-      Mem *pData = &p->v->aMem[p->iNewReg];
-      rc = ExpandBlob(pData);
-      if( rc!=SQLITE_OK ) goto preupdate_new_out;
-      pUnpack = vdbeUnpackRecord(&p->keyinfo, pData->n, pData->z);
-      if( !pUnpack ){
-        rc = SQLITE_NOMEM;
-        goto preupdate_new_out;
-      }
-      p->pNewUnpacked = pUnpack;
-    }
-    pMem = &pUnpack->aMem[iIdx];
-    if( iIdx==p->pTab->iPKey ){
-      tdsqlite3VdbeMemSetInt64(pMem, p->iKey2);
-    }else if( iIdx>=pUnpack->nField ){
-      pMem = (tdsqlite3_value *)columnNullValue();
-    }
-  }else{
-    /* For an UPDATE, memory cell (p->iNewReg+1+iIdx) contains the required
-    ** value. Make a copy of the cell contents and return a pointer to it.
-    ** It is not safe to return a pointer to the memory cell itself as the
-    ** caller may modify the value text encoding.
-    */
-    assert( p->op==SQLITE_UPDATE );
-    if( !p->aNew ){
-      p->aNew = (Mem *)tdsqlite3DbMallocZero(db, sizeof(Mem) * p->pCsr->nField);
-      if( !p->aNew ){
-        rc = SQLITE_NOMEM;
-        goto preupdate_new_out;
-      }
-    }
-    assert( iIdx>=0 && iIdx<p->pCsr->nField );
-    pMem = &p->aNew[iIdx];
-    if( pMem->flags==0 ){
-      if( iIdx==p->pTab->iPKey ){
-        tdsqlite3VdbeMemSetInt64(pMem, p->iKey2);
-      }else{
-        rc = tdsqlite3VdbeMemCopy(pMem, &p->v->aMem[p->iNewReg+1+iIdx]);
-        if( rc!=SQLITE_OK ) goto preupdate_new_out;
-      }
-    }
-  }
-  *ppValue = pMem;
-
- preupdate_new_out:
-  tdsqlite3Error(db, rc);
-  return tdsqlite3ApiExit(db, rc);
-}
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-/*
-** Return status data for a single loop within query pStmt.
-*/
-SQLITE_API int tdsqlite3_stmt_scanstatus(
-  tdsqlite3_stmt *pStmt,            /* Prepared statement being queried */
-  int idx,                        /* Index of loop to report on */
-  int iScanStatusOp,              /* Which metric to return */
-  void *pOut                      /* OUT: Write the answer here */
-){
-  Vdbe *p = (Vdbe*)pStmt;
-  ScanStatus *pScan;
-  if( idx<0 || idx>=p->nScan ) return 1;
-  pScan = &p->aScan[idx];
-  switch( iScanStatusOp ){
-    case SQLITE_SCANSTAT_NLOOP: {
-      *(tdsqlite3_int64*)pOut = p->anExec[pScan->addrLoop];
-      break;
-    }
-    case SQLITE_SCANSTAT_NVISIT: {
-      *(tdsqlite3_int64*)pOut = p->anExec[pScan->addrVisit];
-      break;
-    }
-    case SQLITE_SCANSTAT_EST: {
-      double r = 1.0;
-      LogEst x = pScan->nEst;
-      while( x<100 ){
-        x += 10;
-        r *= 0.5;
-      }
-      *(double*)pOut = r*tdsqlite3LogEstToInt(x);
-      break;
-    }
-    case SQLITE_SCANSTAT_NAME: {
-      *(const char**)pOut = pScan->zName;
-      break;
-    }
-    case SQLITE_SCANSTAT_EXPLAIN: {
-      if( pScan->addrExplain ){
-        *(const char**)pOut = p->aOp[ pScan->addrExplain ].p4.z;
-      }else{
-        *(const char**)pOut = 0;
-      }
-      break;
-    }
-    case SQLITE_SCANSTAT_SELECTID: {
-      if( pScan->addrExplain ){
-        *(int*)pOut = p->aOp[ pScan->addrExplain ].p1;
-      }else{
-        *(int*)pOut = -1;
-      }
-      break;
-    }
-    default: {
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** Zero all counters associated with the tdsqlite3_stmt_scanstatus() data.
-*/
-SQLITE_API void tdsqlite3_stmt_scanstatus_reset(tdsqlite3_stmt *pStmt){
-  Vdbe *p = (Vdbe*)pStmt;
-  memset(p->anExec, 0, p->nOp * sizeof(i64));
-}
-#endif /* SQLITE_ENABLE_STMT_SCANSTATUS */
-
-/************** End of vdbeapi.c *********************************************/
-/************** Begin file vdbetrace.c ***************************************/
-/*
-** 2009 November 25
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains code used to insert the values of host parameters
-** (aka "wildcards") into the SQL text output by tdsqlite3_trace().
-**
-** The Vdbe parse-tree explainer is also found here.
-*/
-/* #include "sqliteInt.h" */
-/* #include "vdbeInt.h" */
-
-#ifndef SQLITE_OMIT_TRACE
-
-/*
-** zSql is a zero-terminated string of UTF-8 SQL text.  Return the number of
-** bytes in this text up to but excluding the first character in
-** a host parameter.  If the text contains no host parameters, return
-** the total number of bytes in the text.
-*/
-static int findNextHostParameter(const char *zSql, int *pnToken){
-  int tokenType;
-  int nTotal = 0;
-  int n;
-
-  *pnToken = 0;
-  while( zSql[0] ){
-    n = tdsqlite3GetToken((u8*)zSql, &tokenType);
-    assert( n>0 && tokenType!=TK_ILLEGAL );
-    if( tokenType==TK_VARIABLE ){
-      *pnToken = n;
-      break;
-    }
-    nTotal += n;
-    zSql += n;
-  }
-  return nTotal;
-}
-
-/*
-** This function returns a pointer to a nul-terminated string in memory
-** obtained from tdsqlite3DbMalloc(). If sqlite3.nVdbeExec is 1, then the
-** string contains a copy of zRawSql but with host parameters expanded to 
-** their current bindings. Or, if sqlite3.nVdbeExec is greater than 1, 
-** then the returned string holds a copy of zRawSql with "-- " prepended
-** to each line of text.
-**
-** If the SQLITE_TRACE_SIZE_LIMIT macro is defined to an integer, then
-** then long strings and blobs are truncated to that many bytes.  This
-** can be used to prevent unreasonably large trace strings when dealing
-** with large (multi-megabyte) strings and blobs.
-**
-** The calling function is responsible for making sure the memory returned
-** is eventually freed.
-**
-** ALGORITHM:  Scan the input string looking for host parameters in any of
-** these forms:  ?, ?N, $A, @A, :A.  Take care to avoid text within
-** string literals, quoted identifier names, and comments.  For text forms,
-** the host parameter index is found by scanning the prepared
-** statement for the corresponding OP_Variable opcode.  Once the host
-** parameter index is known, locate the value in p->aVar[].  Then render
-** the value as a literal in place of the host parameter name.
-*/
-SQLITE_PRIVATE char *tdsqlite3VdbeExpandSql(
-  Vdbe *p,                 /* The prepared statement being evaluated */
-  const char *zRawSql      /* Raw text of the SQL statement */
-){
-  tdsqlite3 *db;             /* The database connection */
-  int idx = 0;             /* Index of a host parameter */
-  int nextIndex = 1;       /* Index of next ? host parameter */
-  int n;                   /* Length of a token prefix */
-  int nToken;              /* Length of the parameter token */
-  int i;                   /* Loop counter */
-  Mem *pVar;               /* Value of a host parameter */
-  StrAccum out;            /* Accumulate the output here */
-#ifndef SQLITE_OMIT_UTF16
-  Mem utf8;                /* Used to convert UTF16 into UTF8 for display */
-#endif
-  char zBase[100];         /* Initial working space */
-
-  db = p->db;
-  tdsqlite3StrAccumInit(&out, 0, zBase, sizeof(zBase), 
-                      db->aLimit[SQLITE_LIMIT_LENGTH]);
-  if( db->nVdbeExec>1 ){
-    while( *zRawSql ){
-      const char *zStart = zRawSql;
-      while( *(zRawSql++)!='\n' && *zRawSql );
-      tdsqlite3_str_append(&out, "-- ", 3);
-      assert( (zRawSql - zStart) > 0 );
-      tdsqlite3_str_append(&out, zStart, (int)(zRawSql-zStart));
-    }
-  }else if( p->nVar==0 ){
-    tdsqlite3_str_append(&out, zRawSql, tdsqlite3Strlen30(zRawSql));
-  }else{
-    while( zRawSql[0] ){
-      n = findNextHostParameter(zRawSql, &nToken);
-      assert( n>0 );
-      tdsqlite3_str_append(&out, zRawSql, n);
-      zRawSql += n;
-      assert( zRawSql[0] || nToken==0 );
-      if( nToken==0 ) break;
-      if( zRawSql[0]=='?' ){
-        if( nToken>1 ){
-          assert( tdsqlite3Isdigit(zRawSql[1]) );
-          tdsqlite3GetInt32(&zRawSql[1], &idx);
-        }else{
-          idx = nextIndex;
-        }
-      }else{
-        assert( zRawSql[0]==':' || zRawSql[0]=='$' ||
-                zRawSql[0]=='@' || zRawSql[0]=='#' );
-        testcase( zRawSql[0]==':' );
-        testcase( zRawSql[0]=='$' );
-        testcase( zRawSql[0]=='@' );
-        testcase( zRawSql[0]=='#' );
-        idx = tdsqlite3VdbeParameterIndex(p, zRawSql, nToken);
-        assert( idx>0 );
-      }
-      zRawSql += nToken;
-      nextIndex = idx + 1;
-      assert( idx>0 && idx<=p->nVar );
-      pVar = &p->aVar[idx-1];
-      if( pVar->flags & MEM_Null ){
-        tdsqlite3_str_append(&out, "NULL", 4);
-      }else if( pVar->flags & (MEM_Int|MEM_IntReal) ){
-        tdsqlite3_str_appendf(&out, "%lld", pVar->u.i);
-      }else if( pVar->flags & MEM_Real ){
-        tdsqlite3_str_appendf(&out, "%!.15g", pVar->u.r);
-      }else if( pVar->flags & MEM_Str ){
-        int nOut;  /* Number of bytes of the string text to include in output */
-#ifndef SQLITE_OMIT_UTF16
-        u8 enc = ENC(db);
-        if( enc!=SQLITE_UTF8 ){
-          memset(&utf8, 0, sizeof(utf8));
-          utf8.db = db;
-          tdsqlite3VdbeMemSetStr(&utf8, pVar->z, pVar->n, enc, SQLITE_STATIC);
-          if( SQLITE_NOMEM==tdsqlite3VdbeChangeEncoding(&utf8, SQLITE_UTF8) ){
-            out.accError = SQLITE_NOMEM;
-            out.nAlloc = 0;
-          }
-          pVar = &utf8;
-        }
-#endif
-        nOut = pVar->n;
-#ifdef SQLITE_TRACE_SIZE_LIMIT
-        if( nOut>SQLITE_TRACE_SIZE_LIMIT ){
-          nOut = SQLITE_TRACE_SIZE_LIMIT;
-          while( nOut<pVar->n && (pVar->z[nOut]&0xc0)==0x80 ){ nOut++; }
-        }
-#endif    
-        tdsqlite3_str_appendf(&out, "'%.*q'", nOut, pVar->z);
-#ifdef SQLITE_TRACE_SIZE_LIMIT
-        if( nOut<pVar->n ){
-          tdsqlite3_str_appendf(&out, "/*+%d bytes*/", pVar->n-nOut);
-        }
-#endif
-#ifndef SQLITE_OMIT_UTF16
-        if( enc!=SQLITE_UTF8 ) tdsqlite3VdbeMemRelease(&utf8);
-#endif
-      }else if( pVar->flags & MEM_Zero ){
-        tdsqlite3_str_appendf(&out, "zeroblob(%d)", pVar->u.nZero);
-      }else{
-        int nOut;  /* Number of bytes of the blob to include in output */
-        assert( pVar->flags & MEM_Blob );
-        tdsqlite3_str_append(&out, "x'", 2);
-        nOut = pVar->n;
-#ifdef SQLITE_TRACE_SIZE_LIMIT
-        if( nOut>SQLITE_TRACE_SIZE_LIMIT ) nOut = SQLITE_TRACE_SIZE_LIMIT;
-#endif
-        for(i=0; i<nOut; i++){
-          tdsqlite3_str_appendf(&out, "%02x", pVar->z[i]&0xff);
-        }
-        tdsqlite3_str_append(&out, "'", 1);
-#ifdef SQLITE_TRACE_SIZE_LIMIT
-        if( nOut<pVar->n ){
-          tdsqlite3_str_appendf(&out, "/*+%d bytes*/", pVar->n-nOut);
-        }
-#endif
-      }
-    }
-  }
-  if( out.accError ) tdsqlite3_str_reset(&out);
-  return tdsqlite3StrAccumFinish(&out);
-}
-
-#endif /* #ifndef SQLITE_OMIT_TRACE */
-
-/************** End of vdbetrace.c *******************************************/
-/************** Begin file vdbe.c ********************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** The code in this file implements the function that runs the
-** bytecode of a prepared statement.
-**
-** Various scripts scan this source file in order to generate HTML
-** documentation, headers files, or other derived files.  The formatting
-** of the code in this file is, therefore, important.  See other comments
-** in this file for details.  If in doubt, do not deviate from existing
-** commenting and indentation practices when changing or adding code.
-*/
-/* #include "sqliteInt.h" */
-/* #include "vdbeInt.h" */
-
-/*
-** Invoke this macro on memory cells just prior to changing the
-** value of the cell.  This macro verifies that shallow copies are
-** not misused.  A shallow copy of a string or blob just copies a
-** pointer to the string or blob, not the content.  If the original
-** is changed while the copy is still in use, the string or blob might
-** be changed out from under the copy.  This macro verifies that nothing
-** like that ever happens.
-*/
-#ifdef SQLITE_DEBUG
-# define memAboutToChange(P,M) tdsqlite3VdbeMemAboutToChange(P,M)
-#else
-# define memAboutToChange(P,M)
-#endif
-
-/*
-** The following global variable is incremented every time a cursor
-** moves, either by the OP_SeekXX, OP_Next, or OP_Prev opcodes.  The test
-** procedures use this information to make sure that indices are
-** working correctly.  This variable has no function other than to
-** help verify the correct operation of the library.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_search_count = 0;
-#endif
-
-/*
-** When this global variable is positive, it gets decremented once before
-** each instruction in the VDBE.  When it reaches zero, the u1.isInterrupted
-** field of the tdsqlite3 structure is set in order to simulate an interrupt.
-**
-** This facility is used for testing purposes only.  It does not function
-** in an ordinary build.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_interrupt_count = 0;
-#endif
-
-/*
-** The next global variable is incremented each type the OP_Sort opcode
-** is executed.  The test procedures use this information to make sure that
-** sorting is occurring or not occurring at appropriate times.   This variable
-** has no function other than to help verify the correct operation of the
-** library.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_sort_count = 0;
-#endif
-
-/*
-** The next global variable records the size of the largest MEM_Blob
-** or MEM_Str that has been used by a VDBE opcode.  The test procedures
-** use this information to make sure that the zero-blob functionality
-** is working correctly.   This variable has no function other than to
-** help verify the correct operation of the library.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_max_blobsize = 0;
-static void updateMaxBlobsize(Mem *p){
-  if( (p->flags & (MEM_Str|MEM_Blob))!=0 && p->n>tdsqlite3_max_blobsize ){
-    tdsqlite3_max_blobsize = p->n;
-  }
-}
-#endif
-
-/*
-** This macro evaluates to true if either the update hook or the preupdate
-** hook are enabled for database connect DB.
-*/
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-# define HAS_UPDATE_HOOK(DB) ((DB)->xPreUpdateCallback||(DB)->xUpdateCallback)
-#else
-# define HAS_UPDATE_HOOK(DB) ((DB)->xUpdateCallback)
-#endif
-
-/*
-** The next global variable is incremented each time the OP_Found opcode
-** is executed. This is used to test whether or not the foreign key
-** operation implemented using OP_FkIsZero is working. This variable
-** has no function other than to help verify the correct operation of the
-** library.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_found_count = 0;
-#endif
-
-/*
-** Test a register to see if it exceeds the current maximum blob size.
-** If it does, record the new maximum blob size.
-*/
-#if defined(SQLITE_TEST) && !defined(SQLITE_UNTESTABLE)
-# define UPDATE_MAX_BLOBSIZE(P)  updateMaxBlobsize(P)
-#else
-# define UPDATE_MAX_BLOBSIZE(P)
-#endif
-
-#ifdef SQLITE_DEBUG
-/* This routine provides a convenient place to set a breakpoint during
-** tracing with PRAGMA vdbe_trace=on.  The breakpoint fires right after
-** each opcode is printed.  Variables "pc" (program counter) and pOp are
-** available to add conditionals to the breakpoint.  GDB example:
-**
-**         break test_trace_breakpoint if pc=22
-**
-** Other useful labels for breakpoints include:
-**   test_addop_breakpoint(pc,pOp)
-**   tdsqlite3CorruptError(lineno)
-**   tdsqlite3MisuseError(lineno)
-**   tdsqlite3CantopenError(lineno)
-*/
-static void test_trace_breakpoint(int pc, Op *pOp, Vdbe *v){
-  static int n = 0;
-  n++;
-}
-#endif
-
-/*
-** Invoke the VDBE coverage callback, if that callback is defined.  This
-** feature is used for test suite validation only and does not appear an
-** production builds.
-**
-** M is the type of branch.  I is the direction taken for this instance of
-** the branch.
-**
-**   M: 2 - two-way branch (I=0: fall-thru   1: jump                )
-**      3 - two-way + NULL (I=0: fall-thru   1: jump      2: NULL   )
-**      4 - OP_Jump        (I=0: jump p1     1: jump p2   2: jump p3)
-**
-** In other words, if M is 2, then I is either 0 (for fall-through) or
-** 1 (for when the branch is taken).  If M is 3, the I is 0 for an
-** ordinary fall-through, I is 1 if the branch was taken, and I is 2 
-** if the result of comparison is NULL.  For M=3, I=2 the jump may or
-** may not be taken, depending on the SQLITE_JUMPIFNULL flags in p5.
-** When M is 4, that means that an OP_Jump is being run.  I is 0, 1, or 2
-** depending on if the operands are less than, equal, or greater than.
-**
-** iSrcLine is the source code line (from the __LINE__ macro) that
-** generated the VDBE instruction combined with flag bits.  The source
-** code line number is in the lower 24 bits of iSrcLine and the upper
-** 8 bytes are flags.  The lower three bits of the flags indicate
-** values for I that should never occur.  For example, if the branch is
-** always taken, the flags should be 0x05 since the fall-through and
-** alternate branch are never taken.  If a branch is never taken then
-** flags should be 0x06 since only the fall-through approach is allowed.
-**
-** Bit 0x08 of the flags indicates an OP_Jump opcode that is only
-** interested in equal or not-equal.  In other words, I==0 and I==2
-** should be treated as equivalent
-**
-** Since only a line number is retained, not the filename, this macro
-** only works for amalgamation builds.  But that is ok, since these macros
-** should be no-ops except for special builds used to measure test coverage.
-*/
-#if !defined(SQLITE_VDBE_COVERAGE)
-# define VdbeBranchTaken(I,M)
-#else
-# define VdbeBranchTaken(I,M) vdbeTakeBranch(pOp->iSrcLine,I,M)
-  static void vdbeTakeBranch(u32 iSrcLine, u8 I, u8 M){
-    u8 mNever;
-    assert( I<=2 );  /* 0: fall through,  1: taken,  2: alternate taken */
-    assert( M<=4 );  /* 2: two-way branch, 3: three-way branch, 4: OP_Jump */
-    assert( I<M );   /* I can only be 2 if M is 3 or 4 */
-    /* Transform I from a integer [0,1,2] into a bitmask of [1,2,4] */
-    I = 1<<I;
-    /* The upper 8 bits of iSrcLine are flags.  The lower three bits of
-    ** the flags indicate directions that the branch can never go.  If
-    ** a branch really does go in one of those directions, assert right
-    ** away. */
-    mNever = iSrcLine >> 24;
-    assert( (I & mNever)==0 );
-    if( tdsqlite3GlobalConfig.xVdbeBranch==0 ) return;  /*NO_TEST*/
-    /* Invoke the branch coverage callback with three arguments:
-    **    iSrcLine - the line number of the VdbeCoverage() macro, with
-    **               flags removed.
-    **    I        - Mask of bits 0x07 indicating which cases are are
-    **               fulfilled by this instance of the jump.  0x01 means
-    **               fall-thru, 0x02 means taken, 0x04 means NULL.  Any
-    **               impossible cases (ex: if the comparison is never NULL)
-    **               are filled in automatically so that the coverage
-    **               measurement logic does not flag those impossible cases
-    **               as missed coverage.
-    **    M        - Type of jump.  Same as M argument above
-    */
-    I |= mNever;
-    if( M==2 ) I |= 0x04;
-    if( M==4 ){
-      I |= 0x08;
-      if( (mNever&0x08)!=0 && (I&0x05)!=0) I |= 0x05; /*NO_TEST*/
-    }
-    tdsqlite3GlobalConfig.xVdbeBranch(tdsqlite3GlobalConfig.pVdbeBranchArg,
-                                    iSrcLine&0xffffff, I, M);
-  }
-#endif
-
-/*
-** An ephemeral string value (signified by the MEM_Ephem flag) contains
-** a pointer to a dynamically allocated string where some other entity
-** is responsible for deallocating that string.  Because the register
-** does not control the string, it might be deleted without the register
-** knowing it.
-**
-** This routine converts an ephemeral string into a dynamically allocated
-** string that the register itself controls.  In other words, it
-** converts an MEM_Ephem string into a string with P.z==P.zMalloc.
-*/
-#define Deephemeralize(P) \
-   if( ((P)->flags&MEM_Ephem)!=0 \
-       && tdsqlite3VdbeMemMakeWriteable(P) ){ goto no_mem;}
-
-/* Return true if the cursor was opened using the OP_OpenSorter opcode. */
-#define isSorter(x) ((x)->eCurType==CURTYPE_SORTER)
-
-/*
-** Allocate VdbeCursor number iCur.  Return a pointer to it.  Return NULL
-** if we run out of memory.
-*/
-static VdbeCursor *allocateCursor(
-  Vdbe *p,              /* The virtual machine */
-  int iCur,             /* Index of the new VdbeCursor */
-  int nField,           /* Number of fields in the table or index */
-  int iDb,              /* Database the cursor belongs to, or -1 */
-  u8 eCurType           /* Type of the new cursor */
-){
-  /* Find the memory cell that will be used to store the blob of memory
-  ** required for this VdbeCursor structure. It is convenient to use a 
-  ** vdbe memory cell to manage the memory allocation required for a
-  ** VdbeCursor structure for the following reasons:
-  **
-  **   * Sometimes cursor numbers are used for a couple of different
-  **     purposes in a vdbe program. The different uses might require
-  **     different sized allocations. Memory cells provide growable
-  **     allocations.
-  **
-  **   * When using ENABLE_MEMORY_MANAGEMENT, memory cell buffers can
-  **     be freed lazily via the tdsqlite3_release_memory() API. This
-  **     minimizes the number of malloc calls made by the system.
-  **
-  ** The memory cell for cursor 0 is aMem[0]. The rest are allocated from
-  ** the top of the register space.  Cursor 1 is at Mem[p->nMem-1].
-  ** Cursor 2 is at Mem[p->nMem-2]. And so forth.
-  */
-  Mem *pMem = iCur>0 ? &p->aMem[p->nMem-iCur] : p->aMem;
-
-  int nByte;
-  VdbeCursor *pCx = 0;
-  nByte = 
-      ROUND8(sizeof(VdbeCursor)) + 2*sizeof(u32)*nField + 
-      (eCurType==CURTYPE_BTREE?tdsqlite3BtreeCursorSize():0);
-
-  assert( iCur>=0 && iCur<p->nCursor );
-  if( p->apCsr[iCur] ){ /*OPTIMIZATION-IF-FALSE*/
-    /* Before calling tdsqlite3VdbeFreeCursor(), ensure the isEphemeral flag
-    ** is clear. Otherwise, if this is an ephemeral cursor created by 
-    ** OP_OpenDup, the cursor will not be closed and will still be part
-    ** of a BtShared.pCursor list.  */
-    if( p->apCsr[iCur]->pBtx==0 ) p->apCsr[iCur]->isEphemeral = 0;
-    tdsqlite3VdbeFreeCursor(p, p->apCsr[iCur]);
-    p->apCsr[iCur] = 0;
-  }
-  if( SQLITE_OK==tdsqlite3VdbeMemClearAndResize(pMem, nByte) ){
-    p->apCsr[iCur] = pCx = (VdbeCursor*)pMem->z;
-    memset(pCx, 0, offsetof(VdbeCursor,pAltCursor));
-    pCx->eCurType = eCurType;
-    pCx->iDb = iDb;
-    pCx->nField = nField;
-    pCx->aOffset = &pCx->aType[nField];
-    if( eCurType==CURTYPE_BTREE ){
-      pCx->uc.pCursor = (BtCursor*)
-          &pMem->z[ROUND8(sizeof(VdbeCursor))+2*sizeof(u32)*nField];
-      tdsqlite3BtreeCursorZero(pCx->uc.pCursor);
-    }
-  }
-  return pCx;
-}
-
-/*
-** The string in pRec is known to look like an integer and to have a
-** floating point value of rValue.  Return true and set *piValue to the
-** integer value if the string is in range to be an integer.  Otherwise,
-** return false.
-*/
-static int alsoAnInt(Mem *pRec, double rValue, i64 *piValue){
-  i64 iValue = (double)rValue;
-  if( tdsqlite3RealSameAsInt(rValue,iValue) ){
-    *piValue = iValue;
-    return 1;
-  }
-  return 0==tdsqlite3Atoi64(pRec->z, piValue, pRec->n, pRec->enc);
-}
-
-/*
-** Try to convert a value into a numeric representation if we can
-** do so without loss of information.  In other words, if the string
-** looks like a number, convert it into a number.  If it does not
-** look like a number, leave it alone.
-**
-** If the bTryForInt flag is true, then extra effort is made to give
-** an integer representation.  Strings that look like floating point
-** values but which have no fractional component (example: '48.00')
-** will have a MEM_Int representation when bTryForInt is true.
-**
-** If bTryForInt is false, then if the input string contains a decimal
-** point or exponential notation, the result is only MEM_Real, even
-** if there is an exact integer representation of the quantity.
-*/
-static void applyNumericAffinity(Mem *pRec, int bTryForInt){
-  double rValue;
-  u8 enc = pRec->enc;
-  int rc;
-  assert( (pRec->flags & (MEM_Str|MEM_Int|MEM_Real|MEM_IntReal))==MEM_Str );
-  rc = tdsqlite3AtoF(pRec->z, &rValue, pRec->n, enc);
-  if( rc<=0 ) return;
-  if( rc==1 && alsoAnInt(pRec, rValue, &pRec->u.i) ){
-    pRec->flags |= MEM_Int;
-  }else{
-    pRec->u.r = rValue;
-    pRec->flags |= MEM_Real;
-    if( bTryForInt ) tdsqlite3VdbeIntegerAffinity(pRec);
-  }
-  /* TEXT->NUMERIC is many->one.  Hence, it is important to invalidate the
-  ** string representation after computing a numeric equivalent, because the
-  ** string representation might not be the canonical representation for the
-  ** numeric value.  Ticket [343634942dd54ab57b7024] 2018-01-31. */
-  pRec->flags &= ~MEM_Str;
-}
-
-/*
-** Processing is determine by the affinity parameter:
-**
-** SQLITE_AFF_INTEGER:
-** SQLITE_AFF_REAL:
-** SQLITE_AFF_NUMERIC:
-**    Try to convert pRec to an integer representation or a 
-**    floating-point representation if an integer representation
-**    is not possible.  Note that the integer representation is
-**    always preferred, even if the affinity is REAL, because
-**    an integer representation is more space efficient on disk.
-**
-** SQLITE_AFF_TEXT:
-**    Convert pRec to a text representation.
-**
-** SQLITE_AFF_BLOB:
-** SQLITE_AFF_NONE:
-**    No-op.  pRec is unchanged.
-*/
-static void applyAffinity(
-  Mem *pRec,          /* The value to apply affinity to */
-  char affinity,      /* The affinity to be applied */
-  u8 enc              /* Use this text encoding */
-){
-  if( affinity>=SQLITE_AFF_NUMERIC ){
-    assert( affinity==SQLITE_AFF_INTEGER || affinity==SQLITE_AFF_REAL
-             || affinity==SQLITE_AFF_NUMERIC );
-    if( (pRec->flags & MEM_Int)==0 ){ /*OPTIMIZATION-IF-FALSE*/
-      if( (pRec->flags & MEM_Real)==0 ){
-        if( pRec->flags & MEM_Str ) applyNumericAffinity(pRec,1);
-      }else{
-        tdsqlite3VdbeIntegerAffinity(pRec);
-      }
-    }
-  }else if( affinity==SQLITE_AFF_TEXT ){
-    /* Only attempt the conversion to TEXT if there is an integer or real
-    ** representation (blob and NULL do not get converted) but no string
-    ** representation.  It would be harmless to repeat the conversion if 
-    ** there is already a string rep, but it is pointless to waste those
-    ** CPU cycles. */
-    if( 0==(pRec->flags&MEM_Str) ){ /*OPTIMIZATION-IF-FALSE*/
-      if( (pRec->flags&(MEM_Real|MEM_Int|MEM_IntReal)) ){
-        testcase( pRec->flags & MEM_Int );
-        testcase( pRec->flags & MEM_Real );
-        testcase( pRec->flags & MEM_IntReal );
-        tdsqlite3VdbeMemStringify(pRec, enc, 1);
-      }
-    }
-    pRec->flags &= ~(MEM_Real|MEM_Int|MEM_IntReal);
-  }
-}
-
-/*
-** Try to convert the type of a function argument or a result column
-** into a numeric representation.  Use either INTEGER or REAL whichever
-** is appropriate.  But only do the conversion if it is possible without
-** loss of information and return the revised type of the argument.
-*/
-SQLITE_API int tdsqlite3_value_numeric_type(tdsqlite3_value *pVal){
-  int eType = tdsqlite3_value_type(pVal);
-  if( eType==SQLITE_TEXT ){
-    Mem *pMem = (Mem*)pVal;
-    applyNumericAffinity(pMem, 0);
-    eType = tdsqlite3_value_type(pVal);
-  }
-  return eType;
-}
-
-/*
-** Exported version of applyAffinity(). This one works on tdsqlite3_value*, 
-** not the internal Mem* type.
-*/
-SQLITE_PRIVATE void tdsqlite3ValueApplyAffinity(
-  tdsqlite3_value *pVal, 
-  u8 affinity, 
-  u8 enc
-){
-  applyAffinity((Mem *)pVal, affinity, enc);
-}
-
-/*
-** pMem currently only holds a string type (or maybe a BLOB that we can
-** interpret as a string if we want to).  Compute its corresponding
-** numeric type, if has one.  Set the pMem->u.r and pMem->u.i fields
-** accordingly.
-*/
-static u16 SQLITE_NOINLINE computeNumericType(Mem *pMem){
-  int rc;
-  tdsqlite3_int64 ix;
-  assert( (pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal))==0 );
-  assert( (pMem->flags & (MEM_Str|MEM_Blob))!=0 );
-  ExpandBlob(pMem);
-  rc = tdsqlite3AtoF(pMem->z, &pMem->u.r, pMem->n, pMem->enc);
-  if( rc<=0 ){
-    if( rc==0 && tdsqlite3Atoi64(pMem->z, &ix, pMem->n, pMem->enc)<=1 ){
-      pMem->u.i = ix;
-      return MEM_Int;
-    }else{
-      return MEM_Real;
-    }
-  }else if( rc==1 && tdsqlite3Atoi64(pMem->z, &ix, pMem->n, pMem->enc)==0 ){
-    pMem->u.i = ix;
-    return MEM_Int;
-  }
-  return MEM_Real;
-}
-
-/*
-** Return the numeric type for pMem, either MEM_Int or MEM_Real or both or
-** none.  
-**
-** Unlike applyNumericAffinity(), this routine does not modify pMem->flags.
-** But it does set pMem->u.r and pMem->u.i appropriately.
-*/
-static u16 numericType(Mem *pMem){
-  if( pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal) ){
-    testcase( pMem->flags & MEM_Int );
-    testcase( pMem->flags & MEM_Real );
-    testcase( pMem->flags & MEM_IntReal );
-    return pMem->flags & (MEM_Int|MEM_Real|MEM_IntReal);
-  }
-  if( pMem->flags & (MEM_Str|MEM_Blob) ){
-    testcase( pMem->flags & MEM_Str );
-    testcase( pMem->flags & MEM_Blob );
-    return computeNumericType(pMem);
-  }
-  return 0;
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Write a nice string representation of the contents of cell pMem
-** into buffer zBuf, length nBuf.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeMemPrettyPrint(Mem *pMem, StrAccum *pStr){
-  int f = pMem->flags;
-  static const char *const encnames[] = {"(X)", "(8)", "(16LE)", "(16BE)"};
-  if( f&MEM_Blob ){
-    int i;
-    char c;
-    if( f & MEM_Dyn ){
-      c = 'z';
-      assert( (f & (MEM_Static|MEM_Ephem))==0 );
-    }else if( f & MEM_Static ){
-      c = 't';
-      assert( (f & (MEM_Dyn|MEM_Ephem))==0 );
-    }else if( f & MEM_Ephem ){
-      c = 'e';
-      assert( (f & (MEM_Static|MEM_Dyn))==0 );
-    }else{
-      c = 's';
-    }
-    tdsqlite3_str_appendf(pStr, "%cx[", c);
-    for(i=0; i<25 && i<pMem->n; i++){
-      tdsqlite3_str_appendf(pStr, "%02X", ((int)pMem->z[i] & 0xFF));
-    }
-    tdsqlite3_str_appendf(pStr, "|");
-    for(i=0; i<25 && i<pMem->n; i++){
-      char z = pMem->z[i];
-      tdsqlite3_str_appendchar(pStr, 1, (z<32||z>126)?'.':z);
-    }
-    tdsqlite3_str_appendf(pStr,"]");
-    if( f & MEM_Zero ){
-      tdsqlite3_str_appendf(pStr, "+%dz",pMem->u.nZero);
-    }
-  }else if( f & MEM_Str ){
-    int j;
-    u8 c;
-    if( f & MEM_Dyn ){
-      c = 'z';
-      assert( (f & (MEM_Static|MEM_Ephem))==0 );
-    }else if( f & MEM_Static ){
-      c = 't';
-      assert( (f & (MEM_Dyn|MEM_Ephem))==0 );
-    }else if( f & MEM_Ephem ){
-      c = 'e';
-      assert( (f & (MEM_Static|MEM_Dyn))==0 );
-    }else{
-      c = 's';
-    }
-    tdsqlite3_str_appendf(pStr, " %c%d[", c, pMem->n);
-    for(j=0; j<25 && j<pMem->n; j++){
-      c = pMem->z[j];
-      tdsqlite3_str_appendchar(pStr, 1, (c>=0x20&&c<=0x7f) ? c : '.');
-    }
-    tdsqlite3_str_appendf(pStr, "]%s", encnames[pMem->enc]);
-  }
-}
-#endif
-
-#ifdef SQLITE_DEBUG
-/*
-** Print the value of a register for tracing purposes:
-*/
-static void memTracePrint(Mem *p){
-  if( p->flags & MEM_Undefined ){
-    printf(" undefined");
-  }else if( p->flags & MEM_Null ){
-    printf(p->flags & MEM_Zero ? " NULL-nochng" : " NULL");
-  }else if( (p->flags & (MEM_Int|MEM_Str))==(MEM_Int|MEM_Str) ){
-    printf(" si:%lld", p->u.i);
-  }else if( (p->flags & (MEM_IntReal))!=0 ){
-    printf(" ir:%lld", p->u.i);
-  }else if( p->flags & MEM_Int ){
-    printf(" i:%lld", p->u.i);
-#ifndef SQLITE_OMIT_FLOATING_POINT
-  }else if( p->flags & MEM_Real ){
-    printf(" r:%.17g", p->u.r);
-#endif
-  }else if( tdsqlite3VdbeMemIsRowSet(p) ){
-    printf(" (rowset)");
-  }else{
-    StrAccum acc;
-    char zBuf[1000];
-    tdsqlite3StrAccumInit(&acc, 0, zBuf, sizeof(zBuf), 0);
-    tdsqlite3VdbeMemPrettyPrint(p, &acc);
-    printf(" %s", tdsqlite3StrAccumFinish(&acc));
-  }
-  if( p->flags & MEM_Subtype ) printf(" subtype=0x%02x", p->eSubtype);
-}
-static void registerTrace(int iReg, Mem *p){
-  printf("R[%d] = ", iReg);
-  memTracePrint(p);
-  if( p->pScopyFrom ){
-    printf(" <== R[%d]", (int)(p->pScopyFrom - &p[-iReg]));
-  }
-  printf("\n");
-  tdsqlite3VdbeCheckMemInvariants(p);
-}
-#endif
-
-#ifdef SQLITE_DEBUG
-/*
-** Show the values of all registers in the virtual machine.  Used for
-** interactive debugging.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeRegisterDump(Vdbe *v){
-  int i;
-  for(i=1; i<v->nMem; i++) registerTrace(i, v->aMem+i);
-}
-#endif /* SQLITE_DEBUG */
-
-
-#ifdef SQLITE_DEBUG
-#  define REGISTER_TRACE(R,M) if(db->flags&SQLITE_VdbeTrace)registerTrace(R,M)
-#else
-#  define REGISTER_TRACE(R,M)
-#endif
-
-
-#ifdef VDBE_PROFILE
-
-/* 
-** hwtime.h contains inline assembler code for implementing 
-** high-performance timing routines.
-*/
-/************** Include hwtime.h in the middle of vdbe.c *********************/
-/************** Begin file hwtime.h ******************************************/
-/*
-** 2008 May 27
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains inline asm code for retrieving "high-performance"
-** counters for x86 and x86_64 class CPUs.
-*/
-#ifndef SQLITE_HWTIME_H
-#define SQLITE_HWTIME_H
-
-/*
-** The following routine only works on pentium-class (or newer) processors.
-** It uses the RDTSC opcode to read the cycle count value out of the
-** processor and returns that value.  This can be used for high-res
-** profiling.
-*/
-#if !defined(__STRICT_ANSI__) && \
-    (defined(__GNUC__) || defined(_MSC_VER)) && \
-    (defined(i386) || defined(__i386__) || defined(_M_IX86))
-
-  #if defined(__GNUC__)
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-     unsigned int lo, hi;
-     __asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
-     return (sqlite_uint64)hi << 32 | lo;
-  }
-
-  #elif defined(_MSC_VER)
-
-  __declspec(naked) __inline sqlite_uint64 __cdecl tdsqlite3Hwtime(void){
-     __asm {
-        rdtsc
-        ret       ; return value at EDX:EAX
-     }
-  }
-
-  #endif
-
-#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__x86_64__))
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-      unsigned long val;
-      __asm__ __volatile__ ("rdtsc" : "=A" (val));
-      return val;
-  }
- 
-#elif !defined(__STRICT_ANSI__) && (defined(__GNUC__) && defined(__ppc__))
-
-  __inline__ sqlite_uint64 tdsqlite3Hwtime(void){
-      unsigned long long retval;
-      unsigned long junk;
-      __asm__ __volatile__ ("\n\
-          1:      mftbu   %1\n\
-                  mftb    %L0\n\
-                  mftbu   %0\n\
-                  cmpw    %0,%1\n\
-                  bne     1b"
-                  : "=r" (retval), "=r" (junk));
-      return retval;
-  }
-
-#else
-
-  /*
-  ** asm() is needed for hardware timing support.  Without asm(),
-  ** disable the tdsqlite3Hwtime() routine.
-  **
-  ** tdsqlite3Hwtime() is only used for some obscure debugging
-  ** and analysis configurations, not in any deliverable, so this
-  ** should not be a great loss.
-  */
-SQLITE_PRIVATE   sqlite_uint64 tdsqlite3Hwtime(void){ return ((sqlite_uint64)0); }
-
-#endif
-
-#endif /* !defined(SQLITE_HWTIME_H) */
-
-/************** End of hwtime.h **********************************************/
-/************** Continuing where we left off in vdbe.c ***********************/
-
-#endif
-
-#ifndef NDEBUG
-/*
-** This function is only called from within an assert() expression. It
-** checks that the sqlite3.nTransaction variable is correctly set to
-** the number of non-transaction savepoints currently in the 
-** linked list starting at sqlite3.pSavepoint.
-** 
-** Usage:
-**
-**     assert( checkSavepointCount(db) );
-*/
-static int checkSavepointCount(tdsqlite3 *db){
-  int n = 0;
-  Savepoint *p;
-  for(p=db->pSavepoint; p; p=p->pNext) n++;
-  assert( n==(db->nSavepoint + db->isTransactionSavepoint) );
-  return 1;
-}
-#endif
-
-/*
-** Return the register of pOp->p2 after first preparing it to be
-** overwritten with an integer value.
-*/
-static SQLITE_NOINLINE Mem *out2PrereleaseWithClear(Mem *pOut){
-  tdsqlite3VdbeMemSetNull(pOut);
-  pOut->flags = MEM_Int;
-  return pOut;
-}
-static Mem *out2Prerelease(Vdbe *p, VdbeOp *pOp){
-  Mem *pOut;
-  assert( pOp->p2>0 );
-  assert( pOp->p2<=(p->nMem+1 - p->nCursor) );
-  pOut = &p->aMem[pOp->p2];
-  memAboutToChange(p, pOut);
-  if( VdbeMemDynamic(pOut) ){ /*OPTIMIZATION-IF-FALSE*/
-    return out2PrereleaseWithClear(pOut);
-  }else{
-    pOut->flags = MEM_Int;
-    return pOut;
-  }
-}
-
-
-/*
-** Execute as much of a VDBE program as we can.
-** This is the core of tdsqlite3_step().  
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeExec(
-  Vdbe *p                    /* The VDBE */
-){
-  Op *aOp = p->aOp;          /* Copy of p->aOp */
-  Op *pOp = aOp;             /* Current operation */
-#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
-  Op *pOrigOp;               /* Value of pOp at the top of the loop */
-#endif
-#ifdef SQLITE_DEBUG
-  int nExtraDelete = 0;      /* Verifies FORDELETE and AUXDELETE flags */
-#endif
-  int rc = SQLITE_OK;        /* Value to return */
-  tdsqlite3 *db = p->db;       /* The database */
-  u8 resetSchemaOnFault = 0; /* Reset schema after an error if positive */
-  u8 encoding = ENC(db);     /* The database encoding */
-  int iCompare = 0;          /* Result of last comparison */
-  unsigned nVmStep = 0;      /* Number of virtual machine steps */
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
-  unsigned nProgressLimit;   /* Invoke xProgress() when nVmStep reaches this */
-#endif
-  Mem *aMem = p->aMem;       /* Copy of p->aMem */
-  Mem *pIn1 = 0;             /* 1st input operand */
-  Mem *pIn2 = 0;             /* 2nd input operand */
-  Mem *pIn3 = 0;             /* 3rd input operand */
-  Mem *pOut = 0;             /* Output operand */
-#ifdef VDBE_PROFILE
-  u64 start;                 /* CPU clock count at start of opcode */
-#endif
-  /*** INSERT STACK UNION HERE ***/
-
-  assert( p->magic==VDBE_MAGIC_RUN );  /* tdsqlite3_step() verifies this */
-  tdsqlite3VdbeEnter(p);
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
-  if( db->xProgress ){
-    u32 iPrior = p->aCounter[SQLITE_STMTSTATUS_VM_STEP];
-    assert( 0 < db->nProgressOps );
-    nProgressLimit = db->nProgressOps - (iPrior % db->nProgressOps);
-  }else{
-    nProgressLimit = 0xffffffff;
-  }
-#endif
-  if( p->rc==SQLITE_NOMEM ){
-    /* This happens if a malloc() inside a call to tdsqlite3_column_text() or
-    ** tdsqlite3_column_text16() failed.  */
-    goto no_mem;
-  }
-  assert( p->rc==SQLITE_OK || (p->rc&0xff)==SQLITE_BUSY );
-  assert( p->bIsReader || p->readOnly!=0 );
-  p->iCurrentTime = 0;
-  assert( p->explain==0 );
-  p->pResultSet = 0;
-  db->busyHandler.nBusy = 0;
-  if( db->u1.isInterrupted ) goto abort_due_to_interrupt;
-  tdsqlite3VdbeIOTraceSql(p);
-#ifdef SQLITE_DEBUG
-  tdsqlite3BeginBenignMalloc();
-  if( p->pc==0
-   && (p->db->flags & (SQLITE_VdbeListing|SQLITE_VdbeEQP|SQLITE_VdbeTrace))!=0
-  ){
-    int i;
-    int once = 1;
-    tdsqlite3VdbePrintSql(p);
-    if( p->db->flags & SQLITE_VdbeListing ){
-      printf("VDBE Program Listing:\n");
-      for(i=0; i<p->nOp; i++){
-        tdsqlite3VdbePrintOp(stdout, i, &aOp[i]);
-      }
-    }
-    if( p->db->flags & SQLITE_VdbeEQP ){
-      for(i=0; i<p->nOp; i++){
-        if( aOp[i].opcode==OP_Explain ){
-          if( once ) printf("VDBE Query Plan:\n");
-          printf("%s\n", aOp[i].p4.z);
-          once = 0;
-        }
-      }
-    }
-    if( p->db->flags & SQLITE_VdbeTrace )  printf("VDBE Trace:\n");
-  }
-  tdsqlite3EndBenignMalloc();
-#endif
-  for(pOp=&aOp[p->pc]; 1; pOp++){
-    /* Errors are detected by individual opcodes, with an immediate
-    ** jumps to abort_due_to_error. */
-    assert( rc==SQLITE_OK );
-
-    assert( pOp>=aOp && pOp<&aOp[p->nOp]);
-#ifdef VDBE_PROFILE
-    start = tdsqlite3NProfileCnt ? tdsqlite3NProfileCnt : tdsqlite3Hwtime();
-#endif
-    nVmStep++;
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-    if( p->anExec ) p->anExec[(int)(pOp-aOp)]++;
-#endif
-
-    /* Only allow tracing if SQLITE_DEBUG is defined.
-    */
-#ifdef SQLITE_DEBUG
-    if( db->flags & SQLITE_VdbeTrace ){
-      tdsqlite3VdbePrintOp(stdout, (int)(pOp - aOp), pOp);
-      test_trace_breakpoint((int)(pOp - aOp),pOp,p);
-    }
-#endif
-      
-
-    /* Check to see if we need to simulate an interrupt.  This only happens
-    ** if we have a special test build.
-    */
-#ifdef SQLITE_TEST
-    if( tdsqlite3_interrupt_count>0 ){
-      tdsqlite3_interrupt_count--;
-      if( tdsqlite3_interrupt_count==0 ){
-        tdsqlite3_interrupt(db);
-      }
-    }
-#endif
-
-    /* Sanity checking on other operands */
-#ifdef SQLITE_DEBUG
-    {
-      u8 opProperty = tdsqlite3OpcodeProperty[pOp->opcode];
-      if( (opProperty & OPFLG_IN1)!=0 ){
-        assert( pOp->p1>0 );
-        assert( pOp->p1<=(p->nMem+1 - p->nCursor) );
-        assert( memIsValid(&aMem[pOp->p1]) );
-        assert( tdsqlite3VdbeCheckMemInvariants(&aMem[pOp->p1]) );
-        REGISTER_TRACE(pOp->p1, &aMem[pOp->p1]);
-      }
-      if( (opProperty & OPFLG_IN2)!=0 ){
-        assert( pOp->p2>0 );
-        assert( pOp->p2<=(p->nMem+1 - p->nCursor) );
-        assert( memIsValid(&aMem[pOp->p2]) );
-        assert( tdsqlite3VdbeCheckMemInvariants(&aMem[pOp->p2]) );
-        REGISTER_TRACE(pOp->p2, &aMem[pOp->p2]);
-      }
-      if( (opProperty & OPFLG_IN3)!=0 ){
-        assert( pOp->p3>0 );
-        assert( pOp->p3<=(p->nMem+1 - p->nCursor) );
-        assert( memIsValid(&aMem[pOp->p3]) );
-        assert( tdsqlite3VdbeCheckMemInvariants(&aMem[pOp->p3]) );
-        REGISTER_TRACE(pOp->p3, &aMem[pOp->p3]);
-      }
-      if( (opProperty & OPFLG_OUT2)!=0 ){
-        assert( pOp->p2>0 );
-        assert( pOp->p2<=(p->nMem+1 - p->nCursor) );
-        memAboutToChange(p, &aMem[pOp->p2]);
-      }
-      if( (opProperty & OPFLG_OUT3)!=0 ){
-        assert( pOp->p3>0 );
-        assert( pOp->p3<=(p->nMem+1 - p->nCursor) );
-        memAboutToChange(p, &aMem[pOp->p3]);
-      }
-    }
-#endif
-#if defined(SQLITE_DEBUG) || defined(VDBE_PROFILE)
-    pOrigOp = pOp;
-#endif
-  
-    switch( pOp->opcode ){
-
-/*****************************************************************************
-** What follows is a massive switch statement where each case implements a
-** separate instruction in the virtual machine.  If we follow the usual
-** indentation conventions, each case should be indented by 6 spaces.  But
-** that is a lot of wasted space on the left margin.  So the code within
-** the switch statement will break with convention and be flush-left. Another
-** big comment (similar to this one) will mark the point in the code where
-** we transition back to normal indentation.
-**
-** The formatting of each case is important.  The makefile for SQLite
-** generates two C files "opcodes.h" and "opcodes.c" by scanning this
-** file looking for lines that begin with "case OP_".  The opcodes.h files
-** will be filled with #defines that give unique integer values to each
-** opcode and the opcodes.c file is filled with an array of strings where
-** each string is the symbolic name for the corresponding opcode.  If the
-** case statement is followed by a comment of the form "/# same as ... #/"
-** that comment is used to determine the particular value of the opcode.
-**
-** Other keywords in the comment that follows each case are used to
-** construct the OPFLG_INITIALIZER value that initializes opcodeProperty[].
-** Keywords include: in1, in2, in3, out2, out3.  See
-** the mkopcodeh.awk script for additional information.
-**
-** Documentation about VDBE opcodes is generated by scanning this file
-** for lines of that contain "Opcode:".  That line and all subsequent
-** comment lines are used in the generation of the opcode.html documentation
-** file.
-**
-** SUMMARY:
-**
-**     Formatting is important to scripts that scan this file.
-**     Do not deviate from the formatting style currently in use.
-**
-*****************************************************************************/
-
-/* Opcode:  Goto * P2 * * *
-**
-** An unconditional jump to address P2.
-** The next instruction executed will be 
-** the one at index P2 from the beginning of
-** the program.
-**
-** The P1 parameter is not actually used by this opcode.  However, it
-** is sometimes set to 1 instead of 0 as a hint to the command-line shell
-** that this Goto is the bottom of a loop and that the lines from P2 down
-** to the current line should be indented for EXPLAIN output.
-*/
-case OP_Goto: {             /* jump */
-
-#ifdef SQLITE_DEBUG
-  /* In debuggging mode, when the p5 flags is set on an OP_Goto, that
-  ** means we should really jump back to the preceeding OP_ReleaseReg
-  ** instruction. */
-  if( pOp->p5 ){
-    assert( pOp->p2 < (int)(pOp - aOp) );
-    assert( pOp->p2 > 1 );
-    pOp = &aOp[pOp->p2 - 2];
-    assert( pOp[1].opcode==OP_ReleaseReg );
-    goto check_for_interrupt;
-  }
-#endif
-
-jump_to_p2_and_check_for_interrupt:
-  pOp = &aOp[pOp->p2 - 1];
-
-  /* Opcodes that are used as the bottom of a loop (OP_Next, OP_Prev,
-  ** OP_VNext, or OP_SorterNext) all jump here upon
-  ** completion.  Check to see if tdsqlite3_interrupt() has been called
-  ** or if the progress callback needs to be invoked. 
-  **
-  ** This code uses unstructured "goto" statements and does not look clean.
-  ** But that is not due to sloppy coding habits. The code is written this
-  ** way for performance, to avoid having to run the interrupt and progress
-  ** checks on every opcode.  This helps tdsqlite3_step() to run about 1.5%
-  ** faster according to "valgrind --tool=cachegrind" */
-check_for_interrupt:
-  if( db->u1.isInterrupted ) goto abort_due_to_interrupt;
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
-  /* Call the progress callback if it is configured and the required number
-  ** of VDBE ops have been executed (either since this invocation of
-  ** tdsqlite3VdbeExec() or since last time the progress callback was called).
-  ** If the progress callback returns non-zero, exit the virtual machine with
-  ** a return code SQLITE_ABORT.
-  */
-  while( nVmStep>=nProgressLimit && db->xProgress!=0 ){
-    assert( db->nProgressOps!=0 );
-    nProgressLimit += db->nProgressOps;
-    if( db->xProgress(db->pProgressArg) ){
-      nProgressLimit = 0xffffffff;
-      rc = SQLITE_INTERRUPT;
-      goto abort_due_to_error;
-    }
-  }
-#endif
-  
-  break;
-}
-
-/* Opcode:  Gosub P1 P2 * * *
-**
-** Write the current address onto register P1
-** and then jump to address P2.
-*/
-case OP_Gosub: {            /* jump */
-  assert( pOp->p1>0 && pOp->p1<=(p->nMem+1 - p->nCursor) );
-  pIn1 = &aMem[pOp->p1];
-  assert( VdbeMemDynamic(pIn1)==0 );
-  memAboutToChange(p, pIn1);
-  pIn1->flags = MEM_Int;
-  pIn1->u.i = (int)(pOp-aOp);
-  REGISTER_TRACE(pOp->p1, pIn1);
-
-  /* Most jump operations do a goto to this spot in order to update
-  ** the pOp pointer. */
-jump_to_p2:
-  pOp = &aOp[pOp->p2 - 1];
-  break;
-}
-
-/* Opcode:  Return P1 * * * *
-**
-** Jump to the next instruction after the address in register P1.  After
-** the jump, register P1 becomes undefined.
-*/
-case OP_Return: {           /* in1 */
-  pIn1 = &aMem[pOp->p1];
-  assert( pIn1->flags==MEM_Int );
-  pOp = &aOp[pIn1->u.i];
-  pIn1->flags = MEM_Undefined;
-  break;
-}
-
-/* Opcode: InitCoroutine P1 P2 P3 * *
-**
-** Set up register P1 so that it will Yield to the coroutine
-** located at address P3.
-**
-** If P2!=0 then the coroutine implementation immediately follows
-** this opcode.  So jump over the coroutine implementation to
-** address P2.
-**
-** See also: EndCoroutine
-*/
-case OP_InitCoroutine: {     /* jump */
-  assert( pOp->p1>0 &&  pOp->p1<=(p->nMem+1 - p->nCursor) );
-  assert( pOp->p2>=0 && pOp->p2<p->nOp );
-  assert( pOp->p3>=0 && pOp->p3<p->nOp );
-  pOut = &aMem[pOp->p1];
-  assert( !VdbeMemDynamic(pOut) );
-  pOut->u.i = pOp->p3 - 1;
-  pOut->flags = MEM_Int;
-  if( pOp->p2 ) goto jump_to_p2;
-  break;
-}
-
-/* Opcode:  EndCoroutine P1 * * * *
-**
-** The instruction at the address in register P1 is a Yield.
-** Jump to the P2 parameter of that Yield.
-** After the jump, register P1 becomes undefined.
-**
-** See also: InitCoroutine
-*/
-case OP_EndCoroutine: {           /* in1 */
-  VdbeOp *pCaller;
-  pIn1 = &aMem[pOp->p1];
-  assert( pIn1->flags==MEM_Int );
-  assert( pIn1->u.i>=0 && pIn1->u.i<p->nOp );
-  pCaller = &aOp[pIn1->u.i];
-  assert( pCaller->opcode==OP_Yield );
-  assert( pCaller->p2>=0 && pCaller->p2<p->nOp );
-  pOp = &aOp[pCaller->p2 - 1];
-  pIn1->flags = MEM_Undefined;
-  break;
-}
-
-/* Opcode:  Yield P1 P2 * * *
-**
-** Swap the program counter with the value in register P1.  This
-** has the effect of yielding to a coroutine.
-**
-** If the coroutine that is launched by this instruction ends with
-** Yield or Return then continue to the next instruction.  But if
-** the coroutine launched by this instruction ends with
-** EndCoroutine, then jump to P2 rather than continuing with the
-** next instruction.
-**
-** See also: InitCoroutine
-*/
-case OP_Yield: {            /* in1, jump */
-  int pcDest;
-  pIn1 = &aMem[pOp->p1];
-  assert( VdbeMemDynamic(pIn1)==0 );
-  pIn1->flags = MEM_Int;
-  pcDest = (int)pIn1->u.i;
-  pIn1->u.i = (int)(pOp - aOp);
-  REGISTER_TRACE(pOp->p1, pIn1);
-  pOp = &aOp[pcDest];
-  break;
-}
-
-/* Opcode:  HaltIfNull  P1 P2 P3 P4 P5
-** Synopsis: if r[P3]=null halt
-**
-** Check the value in register P3.  If it is NULL then Halt using
-** parameter P1, P2, and P4 as if this were a Halt instruction.  If the
-** value in register P3 is not NULL, then this routine is a no-op.
-** The P5 parameter should be 1.
-*/
-case OP_HaltIfNull: {      /* in3 */
-  pIn3 = &aMem[pOp->p3];
-#ifdef SQLITE_DEBUG
-  if( pOp->p2==OE_Abort ){ tdsqlite3VdbeAssertAbortable(p); }
-#endif
-  if( (pIn3->flags & MEM_Null)==0 ) break;
-  /* Fall through into OP_Halt */
-}
-
-/* Opcode:  Halt P1 P2 * P4 P5
-**
-** Exit immediately.  All open cursors, etc are closed
-** automatically.
-**
-** P1 is the result code returned by tdsqlite3_exec(), tdsqlite3_reset(),
-** or tdsqlite3_finalize().  For a normal halt, this should be SQLITE_OK (0).
-** For errors, it can be some other value.  If P1!=0 then P2 will determine
-** whether or not to rollback the current transaction.  Do not rollback
-** if P2==OE_Fail. Do the rollback if P2==OE_Rollback.  If P2==OE_Abort,
-** then back out all changes that have occurred during this execution of the
-** VDBE, but do not rollback the transaction. 
-**
-** If P4 is not null then it is an error message string.
-**
-** P5 is a value between 0 and 4, inclusive, that modifies the P4 string.
-**
-**    0:  (no change)
-**    1:  NOT NULL contraint failed: P4
-**    2:  UNIQUE constraint failed: P4
-**    3:  CHECK constraint failed: P4
-**    4:  FOREIGN KEY constraint failed: P4
-**
-** If P5 is not zero and P4 is NULL, then everything after the ":" is
-** omitted.
-**
-** There is an implied "Halt 0 0 0" instruction inserted at the very end of
-** every program.  So a jump past the last instruction of the program
-** is the same as executing Halt.
-*/
-case OP_Halt: {
-  VdbeFrame *pFrame;
-  int pcx;
-
-  pcx = (int)(pOp - aOp);
-#ifdef SQLITE_DEBUG
-  if( pOp->p2==OE_Abort ){ tdsqlite3VdbeAssertAbortable(p); }
-#endif
-  if( pOp->p1==SQLITE_OK && p->pFrame ){
-    /* Halt the sub-program. Return control to the parent frame. */
-    pFrame = p->pFrame;
-    p->pFrame = pFrame->pParent;
-    p->nFrame--;
-    tdsqlite3VdbeSetChanges(db, p->nChange);
-    pcx = tdsqlite3VdbeFrameRestore(pFrame);
-    if( pOp->p2==OE_Ignore ){
-      /* Instruction pcx is the OP_Program that invoked the sub-program 
-      ** currently being halted. If the p2 instruction of this OP_Halt
-      ** instruction is set to OE_Ignore, then the sub-program is throwing
-      ** an IGNORE exception. In this case jump to the address specified
-      ** as the p2 of the calling OP_Program.  */
-      pcx = p->aOp[pcx].p2-1;
-    }
-    aOp = p->aOp;
-    aMem = p->aMem;
-    pOp = &aOp[pcx];
-    break;
-  }
-  p->rc = pOp->p1;
-  p->errorAction = (u8)pOp->p2;
-  p->pc = pcx;
-  assert( pOp->p5<=4 );
-  if( p->rc ){
-    if( pOp->p5 ){
-      static const char * const azType[] = { "NOT NULL", "UNIQUE", "CHECK",
-                                             "FOREIGN KEY" };
-      testcase( pOp->p5==1 );
-      testcase( pOp->p5==2 );
-      testcase( pOp->p5==3 );
-      testcase( pOp->p5==4 );
-      tdsqlite3VdbeError(p, "%s constraint failed", azType[pOp->p5-1]);
-      if( pOp->p4.z ){
-        p->zErrMsg = tdsqlite3MPrintf(db, "%z: %s", p->zErrMsg, pOp->p4.z);
-      }
-    }else{
-      tdsqlite3VdbeError(p, "%s", pOp->p4.z);
-    }
-    tdsqlite3_log(pOp->p1, "abort at %d in [%s]: %s", pcx, p->zSql, p->zErrMsg);
-  }
-  rc = tdsqlite3VdbeHalt(p);
-  assert( rc==SQLITE_BUSY || rc==SQLITE_OK || rc==SQLITE_ERROR );
-  if( rc==SQLITE_BUSY ){
-    p->rc = SQLITE_BUSY;
-  }else{
-    assert( rc==SQLITE_OK || (p->rc&0xff)==SQLITE_CONSTRAINT );
-    assert( rc==SQLITE_OK || db->nDeferredCons>0 || db->nDeferredImmCons>0 );
-    rc = p->rc ? SQLITE_ERROR : SQLITE_DONE;
-  }
-  goto vdbe_return;
-}
-
-/* Opcode: Integer P1 P2 * * *
-** Synopsis: r[P2]=P1
-**
-** The 32-bit integer value P1 is written into register P2.
-*/
-case OP_Integer: {         /* out2 */
-  pOut = out2Prerelease(p, pOp);
-  pOut->u.i = pOp->p1;
-  break;
-}
-
-/* Opcode: Int64 * P2 * P4 *
-** Synopsis: r[P2]=P4
-**
-** P4 is a pointer to a 64-bit integer value.
-** Write that value into register P2.
-*/
-case OP_Int64: {           /* out2 */
-  pOut = out2Prerelease(p, pOp);
-  assert( pOp->p4.pI64!=0 );
-  pOut->u.i = *pOp->p4.pI64;
-  break;
-}
-
-#ifndef SQLITE_OMIT_FLOATING_POINT
-/* Opcode: Real * P2 * P4 *
-** Synopsis: r[P2]=P4
-**
-** P4 is a pointer to a 64-bit floating point value.
-** Write that value into register P2.
-*/
-case OP_Real: {            /* same as TK_FLOAT, out2 */
-  pOut = out2Prerelease(p, pOp);
-  pOut->flags = MEM_Real;
-  assert( !tdsqlite3IsNaN(*pOp->p4.pReal) );
-  pOut->u.r = *pOp->p4.pReal;
-  break;
-}
-#endif
-
-/* Opcode: String8 * P2 * P4 *
-** Synopsis: r[P2]='P4'
-**
-** P4 points to a nul terminated UTF-8 string. This opcode is transformed 
-** into a String opcode before it is executed for the first time.  During
-** this transformation, the length of string P4 is computed and stored
-** as the P1 parameter.
-*/
-case OP_String8: {         /* same as TK_STRING, out2 */
-  assert( pOp->p4.z!=0 );
-  pOut = out2Prerelease(p, pOp);
-  pOp->p1 = tdsqlite3Strlen30(pOp->p4.z);
-
-#ifndef SQLITE_OMIT_UTF16
-  if( encoding!=SQLITE_UTF8 ){
-    rc = tdsqlite3VdbeMemSetStr(pOut, pOp->p4.z, -1, SQLITE_UTF8, SQLITE_STATIC);
-    assert( rc==SQLITE_OK || rc==SQLITE_TOOBIG );
-    if( rc ) goto too_big;
-    if( SQLITE_OK!=tdsqlite3VdbeChangeEncoding(pOut, encoding) ) goto no_mem;
-    assert( pOut->szMalloc>0 && pOut->zMalloc==pOut->z );
-    assert( VdbeMemDynamic(pOut)==0 );
-    pOut->szMalloc = 0;
-    pOut->flags |= MEM_Static;
-    if( pOp->p4type==P4_DYNAMIC ){
-      tdsqlite3DbFree(db, pOp->p4.z);
-    }
-    pOp->p4type = P4_DYNAMIC;
-    pOp->p4.z = pOut->z;
-    pOp->p1 = pOut->n;
-  }
-#endif
-  if( pOp->p1>db->aLimit[SQLITE_LIMIT_LENGTH] ){
-    goto too_big;
-  }
-  pOp->opcode = OP_String;
-  assert( rc==SQLITE_OK );
-  /* Fall through to the next case, OP_String */
-}
-  
-/* Opcode: String P1 P2 P3 P4 P5
-** Synopsis: r[P2]='P4' (len=P1)
-**
-** The string value P4 of length P1 (bytes) is stored in register P2.
-**
-** If P3 is not zero and the content of register P3 is equal to P5, then
-** the datatype of the register P2 is converted to BLOB.  The content is
-** the same sequence of bytes, it is merely interpreted as a BLOB instead
-** of a string, as if it had been CAST.  In other words:
-**
-** if( P3!=0 and reg[P3]==P5 ) reg[P2] := CAST(reg[P2] as BLOB)
-*/
-case OP_String: {          /* out2 */
-  assert( pOp->p4.z!=0 );
-  pOut = out2Prerelease(p, pOp);
-  pOut->flags = MEM_Str|MEM_Static|MEM_Term;
-  pOut->z = pOp->p4.z;
-  pOut->n = pOp->p1;
-  pOut->enc = encoding;
-  UPDATE_MAX_BLOBSIZE(pOut);
-#ifndef SQLITE_LIKE_DOESNT_MATCH_BLOBS
-  if( pOp->p3>0 ){
-    assert( pOp->p3<=(p->nMem+1 - p->nCursor) );
-    pIn3 = &aMem[pOp->p3];
-    assert( pIn3->flags & MEM_Int );
-    if( pIn3->u.i==pOp->p5 ) pOut->flags = MEM_Blob|MEM_Static|MEM_Term;
-  }
-#endif
-  break;
-}
-
-/* Opcode: Null P1 P2 P3 * *
-** Synopsis: r[P2..P3]=NULL
-**
-** Write a NULL into registers P2.  If P3 greater than P2, then also write
-** NULL into register P3 and every register in between P2 and P3.  If P3
-** is less than P2 (typically P3 is zero) then only register P2 is
-** set to NULL.
-**
-** If the P1 value is non-zero, then also set the MEM_Cleared flag so that
-** NULL values will not compare equal even if SQLITE_NULLEQ is set on
-** OP_Ne or OP_Eq.
-*/
-case OP_Null: {           /* out2 */
-  int cnt;
-  u16 nullFlag;
-  pOut = out2Prerelease(p, pOp);
-  cnt = pOp->p3-pOp->p2;
-  assert( pOp->p3<=(p->nMem+1 - p->nCursor) );
-  pOut->flags = nullFlag = pOp->p1 ? (MEM_Null|MEM_Cleared) : MEM_Null;
-  pOut->n = 0;
-#ifdef SQLITE_DEBUG
-  pOut->uTemp = 0;
-#endif
-  while( cnt>0 ){
-    pOut++;
-    memAboutToChange(p, pOut);
-    tdsqlite3VdbeMemSetNull(pOut);
-    pOut->flags = nullFlag;
-    pOut->n = 0;
-    cnt--;
-  }
-  break;
-}
-
-/* Opcode: SoftNull P1 * * * *
-** Synopsis: r[P1]=NULL
-**
-** Set register P1 to have the value NULL as seen by the OP_MakeRecord
-** instruction, but do not free any string or blob memory associated with
-** the register, so that if the value was a string or blob that was
-** previously copied using OP_SCopy, the copies will continue to be valid.
-*/
-case OP_SoftNull: {
-  assert( pOp->p1>0 && pOp->p1<=(p->nMem+1 - p->nCursor) );
-  pOut = &aMem[pOp->p1];
-  pOut->flags = (pOut->flags&~(MEM_Undefined|MEM_AffMask))|MEM_Null;
-  break;
-}
-
-/* Opcode: Blob P1 P2 * P4 *
-** Synopsis: r[P2]=P4 (len=P1)
-**
-** P4 points to a blob of data P1 bytes long.  Store this
-** blob in register P2.
-*/
-case OP_Blob: {                /* out2 */
-  assert( pOp->p1 <= SQLITE_MAX_LENGTH );
-  pOut = out2Prerelease(p, pOp);
-  tdsqlite3VdbeMemSetStr(pOut, pOp->p4.z, pOp->p1, 0, 0);
-  pOut->enc = encoding;
-  UPDATE_MAX_BLOBSIZE(pOut);
-  break;
-}
-
-/* Opcode: Variable P1 P2 * P4 *
-** Synopsis: r[P2]=parameter(P1,P4)
-**
-** Transfer the values of bound parameter P1 into register P2
-**
-** If the parameter is named, then its name appears in P4.
-** The P4 value is used by tdsqlite3_bind_parameter_name().
-*/
-case OP_Variable: {            /* out2 */
-  Mem *pVar;       /* Value being transferred */
-
-  assert( pOp->p1>0 && pOp->p1<=p->nVar );
-  assert( pOp->p4.z==0 || pOp->p4.z==tdsqlite3VListNumToName(p->pVList,pOp->p1) );
-  pVar = &p->aVar[pOp->p1 - 1];
-  if( tdsqlite3VdbeMemTooBig(pVar) ){
-    goto too_big;
-  }
-  pOut = &aMem[pOp->p2];
-  if( VdbeMemDynamic(pOut) ) tdsqlite3VdbeMemSetNull(pOut);
-  memcpy(pOut, pVar, MEMCELLSIZE);
-  pOut->flags &= ~(MEM_Dyn|MEM_Ephem);
-  pOut->flags |= MEM_Static|MEM_FromBind;
-  UPDATE_MAX_BLOBSIZE(pOut);
-  break;
-}
-
-/* Opcode: Move P1 P2 P3 * *
-** Synopsis: r[P2@P3]=r[P1@P3]
-**
-** Move the P3 values in register P1..P1+P3-1 over into
-** registers P2..P2+P3-1.  Registers P1..P1+P3-1 are
-** left holding a NULL.  It is an error for register ranges
-** P1..P1+P3-1 and P2..P2+P3-1 to overlap.  It is an error
-** for P3 to be less than 1.
-*/
-case OP_Move: {
-  int n;           /* Number of registers left to copy */
-  int p1;          /* Register to copy from */
-  int p2;          /* Register to copy to */
-
-  n = pOp->p3;
-  p1 = pOp->p1;
-  p2 = pOp->p2;
-  assert( n>0 && p1>0 && p2>0 );
-  assert( p1+n<=p2 || p2+n<=p1 );
-
-  pIn1 = &aMem[p1];
-  pOut = &aMem[p2];
-  do{
-    assert( pOut<=&aMem[(p->nMem+1 - p->nCursor)] );
-    assert( pIn1<=&aMem[(p->nMem+1 - p->nCursor)] );
-    assert( memIsValid(pIn1) );
-    memAboutToChange(p, pOut);
-    tdsqlite3VdbeMemMove(pOut, pIn1);
-#ifdef SQLITE_DEBUG
-    pIn1->pScopyFrom = 0;
-    { int i;
-      for(i=1; i<p->nMem; i++){
-        if( aMem[i].pScopyFrom==pIn1 ){
-          aMem[i].pScopyFrom = pOut;
-        }
-      }
-    }
-#endif
-    Deephemeralize(pOut);
-    REGISTER_TRACE(p2++, pOut);
-    pIn1++;
-    pOut++;
-  }while( --n );
-  break;
-}
-
-/* Opcode: Copy P1 P2 P3 * *
-** Synopsis: r[P2@P3+1]=r[P1@P3+1]
-**
-** Make a copy of registers P1..P1+P3 into registers P2..P2+P3.
-**
-** This instruction makes a deep copy of the value.  A duplicate
-** is made of any string or blob constant.  See also OP_SCopy.
-*/
-case OP_Copy: {
-  int n;
-
-  n = pOp->p3;
-  pIn1 = &aMem[pOp->p1];
-  pOut = &aMem[pOp->p2];
-  assert( pOut!=pIn1 );
-  while( 1 ){
-    memAboutToChange(p, pOut);
-    tdsqlite3VdbeMemShallowCopy(pOut, pIn1, MEM_Ephem);
-    Deephemeralize(pOut);
-#ifdef SQLITE_DEBUG
-    pOut->pScopyFrom = 0;
-#endif
-    REGISTER_TRACE(pOp->p2+pOp->p3-n, pOut);
-    if( (n--)==0 ) break;
-    pOut++;
-    pIn1++;
-  }
-  break;
-}
-
-/* Opcode: SCopy P1 P2 * * *
-** Synopsis: r[P2]=r[P1]
-**
-** Make a shallow copy of register P1 into register P2.
-**
-** This instruction makes a shallow copy of the value.  If the value
-** is a string or blob, then the copy is only a pointer to the
-** original and hence if the original changes so will the copy.
-** Worse, if the original is deallocated, the copy becomes invalid.
-** Thus the program must guarantee that the original will not change
-** during the lifetime of the copy.  Use OP_Copy to make a complete
-** copy.
-*/
-case OP_SCopy: {            /* out2 */
-  pIn1 = &aMem[pOp->p1];
-  pOut = &aMem[pOp->p2];
-  assert( pOut!=pIn1 );
-  tdsqlite3VdbeMemShallowCopy(pOut, pIn1, MEM_Ephem);
-#ifdef SQLITE_DEBUG
-  pOut->pScopyFrom = pIn1;
-  pOut->mScopyFlags = pIn1->flags;
-#endif
-  break;
-}
-
-/* Opcode: IntCopy P1 P2 * * *
-** Synopsis: r[P2]=r[P1]
-**
-** Transfer the integer value held in register P1 into register P2.
-**
-** This is an optimized version of SCopy that works only for integer
-** values.
-*/
-case OP_IntCopy: {            /* out2 */
-  pIn1 = &aMem[pOp->p1];
-  assert( (pIn1->flags & MEM_Int)!=0 );
-  pOut = &aMem[pOp->p2];
-  tdsqlite3VdbeMemSetInt64(pOut, pIn1->u.i);
-  break;
-}
-
-/* Opcode: ResultRow P1 P2 * * *
-** Synopsis: output=r[P1@P2]
-**
-** The registers P1 through P1+P2-1 contain a single row of
-** results. This opcode causes the tdsqlite3_step() call to terminate
-** with an SQLITE_ROW return code and it sets up the tdsqlite3_stmt
-** structure to provide access to the r(P1)..r(P1+P2-1) values as
-** the result row.
-*/
-case OP_ResultRow: {
-  Mem *pMem;
-  int i;
-  assert( p->nResColumn==pOp->p2 );
-  assert( pOp->p1>0 );
-  assert( pOp->p1+pOp->p2<=(p->nMem+1 - p->nCursor)+1 );
-
-  /* If this statement has violated immediate foreign key constraints, do
-  ** not return the number of rows modified. And do not RELEASE the statement
-  ** transaction. It needs to be rolled back.  */
-  if( SQLITE_OK!=(rc = tdsqlite3VdbeCheckFk(p, 0)) ){
-    assert( db->flags&SQLITE_CountRows );
-    assert( p->usesStmtJournal );
-    goto abort_due_to_error;
-  }
-
-  /* If the SQLITE_CountRows flag is set in sqlite3.flags mask, then 
-  ** DML statements invoke this opcode to return the number of rows 
-  ** modified to the user. This is the only way that a VM that
-  ** opens a statement transaction may invoke this opcode.
-  **
-  ** In case this is such a statement, close any statement transaction
-  ** opened by this VM before returning control to the user. This is to
-  ** ensure that statement-transactions are always nested, not overlapping.
-  ** If the open statement-transaction is not closed here, then the user
-  ** may step another VM that opens its own statement transaction. This
-  ** may lead to overlapping statement transactions.
-  **
-  ** The statement transaction is never a top-level transaction.  Hence
-  ** the RELEASE call below can never fail.
-  */
-  assert( p->iStatement==0 || db->flags&SQLITE_CountRows );
-  rc = tdsqlite3VdbeCloseStatement(p, SAVEPOINT_RELEASE);
-  assert( rc==SQLITE_OK );
-
-  /* Invalidate all ephemeral cursor row caches */
-  p->cacheCtr = (p->cacheCtr + 2)|1;
-
-  /* Make sure the results of the current row are \000 terminated
-  ** and have an assigned type.  The results are de-ephemeralized as
-  ** a side effect.
-  */
-  pMem = p->pResultSet = &aMem[pOp->p1];
-  for(i=0; i<pOp->p2; i++){
-    assert( memIsValid(&pMem[i]) );
-    Deephemeralize(&pMem[i]);
-    assert( (pMem[i].flags & MEM_Ephem)==0
-            || (pMem[i].flags & (MEM_Str|MEM_Blob))==0 );
-    tdsqlite3VdbeMemNulTerminate(&pMem[i]);
-    REGISTER_TRACE(pOp->p1+i, &pMem[i]);
-#ifdef SQLITE_DEBUG
-    /* The registers in the result will not be used again when the
-    ** prepared statement restarts.  This is because tdsqlite3_column()
-    ** APIs might have caused type conversions of made other changes to
-    ** the register values.  Therefore, we can go ahead and break any
-    ** OP_SCopy dependencies. */
-    pMem[i].pScopyFrom = 0;
-#endif
-  }
-  if( db->mallocFailed ) goto no_mem;
-
-  if( db->mTrace & SQLITE_TRACE_ROW ){
-    db->xTrace(SQLITE_TRACE_ROW, db->pTraceArg, p, 0);
-  }
-
-
-  /* Return SQLITE_ROW
-  */
-  p->pc = (int)(pOp - aOp) + 1;
-  rc = SQLITE_ROW;
-  goto vdbe_return;
-}
-
-/* Opcode: Concat P1 P2 P3 * *
-** Synopsis: r[P3]=r[P2]+r[P1]
-**
-** Add the text in register P1 onto the end of the text in
-** register P2 and store the result in register P3.
-** If either the P1 or P2 text are NULL then store NULL in P3.
-**
-**   P3 = P2 || P1
-**
-** It is illegal for P1 and P3 to be the same register. Sometimes,
-** if P3 is the same register as P2, the implementation is able
-** to avoid a memcpy().
-*/
-case OP_Concat: {           /* same as TK_CONCAT, in1, in2, out3 */
-  i64 nByte;          /* Total size of the output string or blob */
-  u16 flags1;         /* Initial flags for P1 */
-  u16 flags2;         /* Initial flags for P2 */
-
-  pIn1 = &aMem[pOp->p1];
-  pIn2 = &aMem[pOp->p2];
-  pOut = &aMem[pOp->p3];
-  testcase( pIn1==pIn2 );
-  testcase( pOut==pIn2 );
-  assert( pIn1!=pOut );
-  flags1 = pIn1->flags;
-  testcase( flags1 & MEM_Null );
-  testcase( pIn2->flags & MEM_Null );
-  if( (flags1 | pIn2->flags) & MEM_Null ){
-    tdsqlite3VdbeMemSetNull(pOut);
-    break;
-  }
-  if( (flags1 & (MEM_Str|MEM_Blob))==0 ){
-    if( tdsqlite3VdbeMemStringify(pIn1,encoding,0) ) goto no_mem;
-    flags1 = pIn1->flags & ~MEM_Str;
-  }else if( (flags1 & MEM_Zero)!=0 ){
-    if( tdsqlite3VdbeMemExpandBlob(pIn1) ) goto no_mem;
-    flags1 = pIn1->flags & ~MEM_Str;
-  }
-  flags2 = pIn2->flags;
-  if( (flags2 & (MEM_Str|MEM_Blob))==0 ){
-    if( tdsqlite3VdbeMemStringify(pIn2,encoding,0) ) goto no_mem;
-    flags2 = pIn2->flags & ~MEM_Str;
-  }else if( (flags2 & MEM_Zero)!=0 ){
-    if( tdsqlite3VdbeMemExpandBlob(pIn2) ) goto no_mem;
-    flags2 = pIn2->flags & ~MEM_Str;
-  }
-  nByte = pIn1->n + pIn2->n;
-  if( nByte>db->aLimit[SQLITE_LIMIT_LENGTH] ){
-    goto too_big;
-  }
-  if( tdsqlite3VdbeMemGrow(pOut, (int)nByte+3, pOut==pIn2) ){
-    goto no_mem;
-  }
-  MemSetTypeFlag(pOut, MEM_Str);
-  if( pOut!=pIn2 ){
-    memcpy(pOut->z, pIn2->z, pIn2->n);
-    assert( (pIn2->flags & MEM_Dyn) == (flags2 & MEM_Dyn) );
-    pIn2->flags = flags2;
-  }
-  memcpy(&pOut->z[pIn2->n], pIn1->z, pIn1->n);
-  assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) );
-  pIn1->flags = flags1;
-  pOut->z[nByte]=0;
-  pOut->z[nByte+1] = 0;
-  pOut->z[nByte+2] = 0;
-  pOut->flags |= MEM_Term;
-  pOut->n = (int)nByte;
-  pOut->enc = encoding;
-  UPDATE_MAX_BLOBSIZE(pOut);
-  break;
-}
-
-/* Opcode: Add P1 P2 P3 * *
-** Synopsis: r[P3]=r[P1]+r[P2]
-**
-** Add the value in register P1 to the value in register P2
-** and store the result in register P3.
-** If either input is NULL, the result is NULL.
-*/
-/* Opcode: Multiply P1 P2 P3 * *
-** Synopsis: r[P3]=r[P1]*r[P2]
-**
-**
-** Multiply the value in register P1 by the value in register P2
-** and store the result in register P3.
-** If either input is NULL, the result is NULL.
-*/
-/* Opcode: Subtract P1 P2 P3 * *
-** Synopsis: r[P3]=r[P2]-r[P1]
-**
-** Subtract the value in register P1 from the value in register P2
-** and store the result in register P3.
-** If either input is NULL, the result is NULL.
-*/
-/* Opcode: Divide P1 P2 P3 * *
-** Synopsis: r[P3]=r[P2]/r[P1]
-**
-** Divide the value in register P1 by the value in register P2
-** and store the result in register P3 (P3=P2/P1). If the value in 
-** register P1 is zero, then the result is NULL. If either input is 
-** NULL, the result is NULL.
-*/
-/* Opcode: Remainder P1 P2 P3 * *
-** Synopsis: r[P3]=r[P2]%r[P1]
-**
-** Compute the remainder after integer register P2 is divided by 
-** register P1 and store the result in register P3. 
-** If the value in register P1 is zero the result is NULL.
-** If either operand is NULL, the result is NULL.
-*/
-case OP_Add:                   /* same as TK_PLUS, in1, in2, out3 */
-case OP_Subtract:              /* same as TK_MINUS, in1, in2, out3 */
-case OP_Multiply:              /* same as TK_STAR, in1, in2, out3 */
-case OP_Divide:                /* same as TK_SLASH, in1, in2, out3 */
-case OP_Remainder: {           /* same as TK_REM, in1, in2, out3 */
-  u16 flags;      /* Combined MEM_* flags from both inputs */
-  u16 type1;      /* Numeric type of left operand */
-  u16 type2;      /* Numeric type of right operand */
-  i64 iA;         /* Integer value of left operand */
-  i64 iB;         /* Integer value of right operand */
-  double rA;      /* Real value of left operand */
-  double rB;      /* Real value of right operand */
-
-  pIn1 = &aMem[pOp->p1];
-  type1 = numericType(pIn1);
-  pIn2 = &aMem[pOp->p2];
-  type2 = numericType(pIn2);
-  pOut = &aMem[pOp->p3];
-  flags = pIn1->flags | pIn2->flags;
-  if( (type1 & type2 & MEM_Int)!=0 ){
-    iA = pIn1->u.i;
-    iB = pIn2->u.i;
-    switch( pOp->opcode ){
-      case OP_Add:       if( tdsqlite3AddInt64(&iB,iA) ) goto fp_math;  break;
-      case OP_Subtract:  if( tdsqlite3SubInt64(&iB,iA) ) goto fp_math;  break;
-      case OP_Multiply:  if( tdsqlite3MulInt64(&iB,iA) ) goto fp_math;  break;
-      case OP_Divide: {
-        if( iA==0 ) goto arithmetic_result_is_null;
-        if( iA==-1 && iB==SMALLEST_INT64 ) goto fp_math;
-        iB /= iA;
-        break;
-      }
-      default: {
-        if( iA==0 ) goto arithmetic_result_is_null;
-        if( iA==-1 ) iA = 1;
-        iB %= iA;
-        break;
-      }
-    }
-    pOut->u.i = iB;
-    MemSetTypeFlag(pOut, MEM_Int);
-  }else if( (flags & MEM_Null)!=0 ){
-    goto arithmetic_result_is_null;
-  }else{
-fp_math:
-    rA = tdsqlite3VdbeRealValue(pIn1);
-    rB = tdsqlite3VdbeRealValue(pIn2);
-    switch( pOp->opcode ){
-      case OP_Add:         rB += rA;       break;
-      case OP_Subtract:    rB -= rA;       break;
-      case OP_Multiply:    rB *= rA;       break;
-      case OP_Divide: {
-        /* (double)0 In case of SQLITE_OMIT_FLOATING_POINT... */
-        if( rA==(double)0 ) goto arithmetic_result_is_null;
-        rB /= rA;
-        break;
-      }
-      default: {
-        iA = tdsqlite3VdbeIntValue(pIn1);
-        iB = tdsqlite3VdbeIntValue(pIn2);
-        if( iA==0 ) goto arithmetic_result_is_null;
-        if( iA==-1 ) iA = 1;
-        rB = (double)(iB % iA);
-        break;
-      }
-    }
-#ifdef SQLITE_OMIT_FLOATING_POINT
-    pOut->u.i = rB;
-    MemSetTypeFlag(pOut, MEM_Int);
-#else
-    if( tdsqlite3IsNaN(rB) ){
-      goto arithmetic_result_is_null;
-    }
-    pOut->u.r = rB;
-    MemSetTypeFlag(pOut, MEM_Real);
-#endif
-  }
-  break;
-
-arithmetic_result_is_null:
-  tdsqlite3VdbeMemSetNull(pOut);
-  break;
-}
-
-/* Opcode: CollSeq P1 * * P4
-**
-** P4 is a pointer to a CollSeq object. If the next call to a user function
-** or aggregate calls tdsqlite3GetFuncCollSeq(), this collation sequence will
-** be returned. This is used by the built-in min(), max() and nullif()
-** functions.
-**
-** If P1 is not zero, then it is a register that a subsequent min() or
-** max() aggregate will set to 1 if the current row is not the minimum or
-** maximum.  The P1 register is initialized to 0 by this instruction.
-**
-** The interface used by the implementation of the aforementioned functions
-** to retrieve the collation sequence set by this opcode is not available
-** publicly.  Only built-in functions have access to this feature.
-*/
-case OP_CollSeq: {
-  assert( pOp->p4type==P4_COLLSEQ );
-  if( pOp->p1 ){
-    tdsqlite3VdbeMemSetInt64(&aMem[pOp->p1], 0);
-  }
-  break;
-}
-
-/* Opcode: BitAnd P1 P2 P3 * *
-** Synopsis: r[P3]=r[P1]&r[P2]
-**
-** Take the bit-wise AND of the values in register P1 and P2 and
-** store the result in register P3.
-** If either input is NULL, the result is NULL.
-*/
-/* Opcode: BitOr P1 P2 P3 * *
-** Synopsis: r[P3]=r[P1]|r[P2]
-**
-** Take the bit-wise OR of the values in register P1 and P2 and
-** store the result in register P3.
-** If either input is NULL, the result is NULL.
-*/
-/* Opcode: ShiftLeft P1 P2 P3 * *
-** Synopsis: r[P3]=r[P2]<<r[P1]
-**
-** Shift the integer value in register P2 to the left by the
-** number of bits specified by the integer in register P1.
-** Store the result in register P3.
-** If either input is NULL, the result is NULL.
-*/
-/* Opcode: ShiftRight P1 P2 P3 * *
-** Synopsis: r[P3]=r[P2]>>r[P1]
-**
-** Shift the integer value in register P2 to the right by the
-** number of bits specified by the integer in register P1.
-** Store the result in register P3.
-** If either input is NULL, the result is NULL.
-*/
-case OP_BitAnd:                 /* same as TK_BITAND, in1, in2, out3 */
-case OP_BitOr:                  /* same as TK_BITOR, in1, in2, out3 */
-case OP_ShiftLeft:              /* same as TK_LSHIFT, in1, in2, out3 */
-case OP_ShiftRight: {           /* same as TK_RSHIFT, in1, in2, out3 */
-  i64 iA;
-  u64 uA;
-  i64 iB;
-  u8 op;
-
-  pIn1 = &aMem[pOp->p1];
-  pIn2 = &aMem[pOp->p2];
-  pOut = &aMem[pOp->p3];
-  if( (pIn1->flags | pIn2->flags) & MEM_Null ){
-    tdsqlite3VdbeMemSetNull(pOut);
-    break;
-  }
-  iA = tdsqlite3VdbeIntValue(pIn2);
-  iB = tdsqlite3VdbeIntValue(pIn1);
-  op = pOp->opcode;
-  if( op==OP_BitAnd ){
-    iA &= iB;
-  }else if( op==OP_BitOr ){
-    iA |= iB;
-  }else if( iB!=0 ){
-    assert( op==OP_ShiftRight || op==OP_ShiftLeft );
-
-    /* If shifting by a negative amount, shift in the other direction */
-    if( iB<0 ){
-      assert( OP_ShiftRight==OP_ShiftLeft+1 );
-      op = 2*OP_ShiftLeft + 1 - op;
-      iB = iB>(-64) ? -iB : 64;
-    }
-
-    if( iB>=64 ){
-      iA = (iA>=0 || op==OP_ShiftLeft) ? 0 : -1;
-    }else{
-      memcpy(&uA, &iA, sizeof(uA));
-      if( op==OP_ShiftLeft ){
-        uA <<= iB;
-      }else{
-        uA >>= iB;
-        /* Sign-extend on a right shift of a negative number */
-        if( iA<0 ) uA |= ((((u64)0xffffffff)<<32)|0xffffffff) << (64-iB);
-      }
-      memcpy(&iA, &uA, sizeof(iA));
-    }
-  }
-  pOut->u.i = iA;
-  MemSetTypeFlag(pOut, MEM_Int);
-  break;
-}
-
-/* Opcode: AddImm  P1 P2 * * *
-** Synopsis: r[P1]=r[P1]+P2
-** 
-** Add the constant P2 to the value in register P1.
-** The result is always an integer.
-**
-** To force any register to be an integer, just add 0.
-*/
-case OP_AddImm: {            /* in1 */
-  pIn1 = &aMem[pOp->p1];
-  memAboutToChange(p, pIn1);
-  tdsqlite3VdbeMemIntegerify(pIn1);
-  pIn1->u.i += pOp->p2;
-  break;
-}
-
-/* Opcode: MustBeInt P1 P2 * * *
-** 
-** Force the value in register P1 to be an integer.  If the value
-** in P1 is not an integer and cannot be converted into an integer
-** without data loss, then jump immediately to P2, or if P2==0
-** raise an SQLITE_MISMATCH exception.
-*/
-case OP_MustBeInt: {            /* jump, in1 */
-  pIn1 = &aMem[pOp->p1];
-  if( (pIn1->flags & MEM_Int)==0 ){
-    applyAffinity(pIn1, SQLITE_AFF_NUMERIC, encoding);
-    if( (pIn1->flags & MEM_Int)==0 ){
-      VdbeBranchTaken(1, 2);
-      if( pOp->p2==0 ){
-        rc = SQLITE_MISMATCH;
-        goto abort_due_to_error;
-      }else{
-        goto jump_to_p2;
-      }
-    }
-  }
-  VdbeBranchTaken(0, 2);
-  MemSetTypeFlag(pIn1, MEM_Int);
-  break;
-}
-
-#ifndef SQLITE_OMIT_FLOATING_POINT
-/* Opcode: RealAffinity P1 * * * *
-**
-** If register P1 holds an integer convert it to a real value.
-**
-** This opcode is used when extracting information from a column that
-** has REAL affinity.  Such column values may still be stored as
-** integers, for space efficiency, but after extraction we want them
-** to have only a real value.
-*/
-case OP_RealAffinity: {                  /* in1 */
-  pIn1 = &aMem[pOp->p1];
-  if( pIn1->flags & (MEM_Int|MEM_IntReal) ){
-    testcase( pIn1->flags & MEM_Int );
-    testcase( pIn1->flags & MEM_IntReal );
-    tdsqlite3VdbeMemRealify(pIn1);
-    REGISTER_TRACE(pOp->p1, pIn1);
-  }
-  break;
-}
-#endif
-
-#ifndef SQLITE_OMIT_CAST
-/* Opcode: Cast P1 P2 * * *
-** Synopsis: affinity(r[P1])
-**
-** Force the value in register P1 to be the type defined by P2.
-** 
-** <ul>
-** <li> P2=='A' &rarr; BLOB
-** <li> P2=='B' &rarr; TEXT
-** <li> P2=='C' &rarr; NUMERIC
-** <li> P2=='D' &rarr; INTEGER
-** <li> P2=='E' &rarr; REAL
-** </ul>
-**
-** A NULL value is not changed by this routine.  It remains NULL.
-*/
-case OP_Cast: {                  /* in1 */
-  assert( pOp->p2>=SQLITE_AFF_BLOB && pOp->p2<=SQLITE_AFF_REAL );
-  testcase( pOp->p2==SQLITE_AFF_TEXT );
-  testcase( pOp->p2==SQLITE_AFF_BLOB );
-  testcase( pOp->p2==SQLITE_AFF_NUMERIC );
-  testcase( pOp->p2==SQLITE_AFF_INTEGER );
-  testcase( pOp->p2==SQLITE_AFF_REAL );
-  pIn1 = &aMem[pOp->p1];
-  memAboutToChange(p, pIn1);
-  rc = ExpandBlob(pIn1);
-  if( rc ) goto abort_due_to_error;
-  rc = tdsqlite3VdbeMemCast(pIn1, pOp->p2, encoding);
-  if( rc ) goto abort_due_to_error;
-  UPDATE_MAX_BLOBSIZE(pIn1);
-  REGISTER_TRACE(pOp->p1, pIn1);
-  break;
-}
-#endif /* SQLITE_OMIT_CAST */
-
-/* Opcode: Eq P1 P2 P3 P4 P5
-** Synopsis: IF r[P3]==r[P1]
-**
-** Compare the values in register P1 and P3.  If reg(P3)==reg(P1) then
-** jump to address P2.  Or if the SQLITE_STOREP2 flag is set in P5, then
-** store the result of comparison in register P2.
-**
-** The SQLITE_AFF_MASK portion of P5 must be an affinity character -
-** SQLITE_AFF_TEXT, SQLITE_AFF_INTEGER, and so forth. An attempt is made 
-** to coerce both inputs according to this affinity before the
-** comparison is made. If the SQLITE_AFF_MASK is 0x00, then numeric
-** affinity is used. Note that the affinity conversions are stored
-** back into the input registers P1 and P3.  So this opcode can cause
-** persistent changes to registers P1 and P3.
-**
-** Once any conversions have taken place, and neither value is NULL, 
-** the values are compared. If both values are blobs then memcmp() is
-** used to determine the results of the comparison.  If both values
-** are text, then the appropriate collating function specified in
-** P4 is used to do the comparison.  If P4 is not specified then
-** memcmp() is used to compare text string.  If both values are
-** numeric, then a numeric comparison is used. If the two values
-** are of different types, then numbers are considered less than
-** strings and strings are considered less than blobs.
-**
-** If SQLITE_NULLEQ is set in P5 then the result of comparison is always either
-** true or false and is never NULL.  If both operands are NULL then the result
-** of comparison is true.  If either operand is NULL then the result is false.
-** If neither operand is NULL the result is the same as it would be if
-** the SQLITE_NULLEQ flag were omitted from P5.
-**
-** If both SQLITE_STOREP2 and SQLITE_KEEPNULL flags are set then the
-** content of r[P2] is only changed if the new value is NULL or 0 (false).
-** In other words, a prior r[P2] value will not be overwritten by 1 (true).
-*/
-/* Opcode: Ne P1 P2 P3 P4 P5
-** Synopsis: IF r[P3]!=r[P1]
-**
-** This works just like the Eq opcode except that the jump is taken if
-** the operands in registers P1 and P3 are not equal.  See the Eq opcode for
-** additional information.
-**
-** If both SQLITE_STOREP2 and SQLITE_KEEPNULL flags are set then the
-** content of r[P2] is only changed if the new value is NULL or 1 (true).
-** In other words, a prior r[P2] value will not be overwritten by 0 (false).
-*/
-/* Opcode: Lt P1 P2 P3 P4 P5
-** Synopsis: IF r[P3]<r[P1]
-**
-** Compare the values in register P1 and P3.  If reg(P3)<reg(P1) then
-** jump to address P2.  Or if the SQLITE_STOREP2 flag is set in P5 store
-** the result of comparison (0 or 1 or NULL) into register P2.
-**
-** If the SQLITE_JUMPIFNULL bit of P5 is set and either reg(P1) or
-** reg(P3) is NULL then the take the jump.  If the SQLITE_JUMPIFNULL 
-** bit is clear then fall through if either operand is NULL.
-**
-** The SQLITE_AFF_MASK portion of P5 must be an affinity character -
-** SQLITE_AFF_TEXT, SQLITE_AFF_INTEGER, and so forth. An attempt is made 
-** to coerce both inputs according to this affinity before the
-** comparison is made. If the SQLITE_AFF_MASK is 0x00, then numeric
-** affinity is used. Note that the affinity conversions are stored
-** back into the input registers P1 and P3.  So this opcode can cause
-** persistent changes to registers P1 and P3.
-**
-** Once any conversions have taken place, and neither value is NULL, 
-** the values are compared. If both values are blobs then memcmp() is
-** used to determine the results of the comparison.  If both values
-** are text, then the appropriate collating function specified in
-** P4 is  used to do the comparison.  If P4 is not specified then
-** memcmp() is used to compare text string.  If both values are
-** numeric, then a numeric comparison is used. If the two values
-** are of different types, then numbers are considered less than
-** strings and strings are considered less than blobs.
-*/
-/* Opcode: Le P1 P2 P3 P4 P5
-** Synopsis: IF r[P3]<=r[P1]
-**
-** This works just like the Lt opcode except that the jump is taken if
-** the content of register P3 is less than or equal to the content of
-** register P1.  See the Lt opcode for additional information.
-*/
-/* Opcode: Gt P1 P2 P3 P4 P5
-** Synopsis: IF r[P3]>r[P1]
-**
-** This works just like the Lt opcode except that the jump is taken if
-** the content of register P3 is greater than the content of
-** register P1.  See the Lt opcode for additional information.
-*/
-/* Opcode: Ge P1 P2 P3 P4 P5
-** Synopsis: IF r[P3]>=r[P1]
-**
-** This works just like the Lt opcode except that the jump is taken if
-** the content of register P3 is greater than or equal to the content of
-** register P1.  See the Lt opcode for additional information.
-*/
-case OP_Eq:               /* same as TK_EQ, jump, in1, in3 */
-case OP_Ne:               /* same as TK_NE, jump, in1, in3 */
-case OP_Lt:               /* same as TK_LT, jump, in1, in3 */
-case OP_Le:               /* same as TK_LE, jump, in1, in3 */
-case OP_Gt:               /* same as TK_GT, jump, in1, in3 */
-case OP_Ge: {             /* same as TK_GE, jump, in1, in3 */
-  int res, res2;      /* Result of the comparison of pIn1 against pIn3 */
-  char affinity;      /* Affinity to use for comparison */
-  u16 flags1;         /* Copy of initial value of pIn1->flags */
-  u16 flags3;         /* Copy of initial value of pIn3->flags */
-
-  pIn1 = &aMem[pOp->p1];
-  pIn3 = &aMem[pOp->p3];
-  flags1 = pIn1->flags;
-  flags3 = pIn3->flags;
-  if( (flags1 | flags3)&MEM_Null ){
-    /* One or both operands are NULL */
-    if( pOp->p5 & SQLITE_NULLEQ ){
-      /* If SQLITE_NULLEQ is set (which will only happen if the operator is
-      ** OP_Eq or OP_Ne) then take the jump or not depending on whether
-      ** or not both operands are null.
-      */
-      assert( (flags1 & MEM_Cleared)==0 );
-      assert( (pOp->p5 & SQLITE_JUMPIFNULL)==0 || CORRUPT_DB );
-      testcase( (pOp->p5 & SQLITE_JUMPIFNULL)!=0 );
-      if( (flags1&flags3&MEM_Null)!=0
-       && (flags3&MEM_Cleared)==0
-      ){
-        res = 0;  /* Operands are equal */
-      }else{
-        res = ((flags3 & MEM_Null) ? -1 : +1);  /* Operands are not equal */
-      }
-    }else{
-      /* SQLITE_NULLEQ is clear and at least one operand is NULL,
-      ** then the result is always NULL.
-      ** The jump is taken if the SQLITE_JUMPIFNULL bit is set.
-      */
-      if( pOp->p5 & SQLITE_STOREP2 ){
-        pOut = &aMem[pOp->p2];
-        iCompare = 1;    /* Operands are not equal */
-        memAboutToChange(p, pOut);
-        MemSetTypeFlag(pOut, MEM_Null);
-        REGISTER_TRACE(pOp->p2, pOut);
-      }else{
-        VdbeBranchTaken(2,3);
-        if( pOp->p5 & SQLITE_JUMPIFNULL ){
-          goto jump_to_p2;
-        }
-      }
-      break;
-    }
-  }else{
-    /* Neither operand is NULL.  Do a comparison. */
-    affinity = pOp->p5 & SQLITE_AFF_MASK;
-    if( affinity>=SQLITE_AFF_NUMERIC ){
-      if( (flags1 | flags3)&MEM_Str ){
-        if( (flags1 & (MEM_Int|MEM_IntReal|MEM_Real|MEM_Str))==MEM_Str ){
-          applyNumericAffinity(pIn1,0);
-          testcase( flags3!=pIn3->flags );
-          flags3 = pIn3->flags;
-        }
-        if( (flags3 & (MEM_Int|MEM_IntReal|MEM_Real|MEM_Str))==MEM_Str ){
-          applyNumericAffinity(pIn3,0);
-        }
-      }
-      /* Handle the common case of integer comparison here, as an
-      ** optimization, to avoid a call to tdsqlite3MemCompare() */
-      if( (pIn1->flags & pIn3->flags & MEM_Int)!=0 ){
-        if( pIn3->u.i > pIn1->u.i ){ res = +1; goto compare_op; }
-        if( pIn3->u.i < pIn1->u.i ){ res = -1; goto compare_op; }
-        res = 0;
-        goto compare_op;
-      }
-    }else if( affinity==SQLITE_AFF_TEXT ){
-      if( (flags1 & MEM_Str)==0 && (flags1&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
-        testcase( pIn1->flags & MEM_Int );
-        testcase( pIn1->flags & MEM_Real );
-        testcase( pIn1->flags & MEM_IntReal );
-        tdsqlite3VdbeMemStringify(pIn1, encoding, 1);
-        testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) );
-        flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask);
-        if( pIn1==pIn3 ) flags3 = flags1 | MEM_Str;
-      }
-      if( (flags3 & MEM_Str)==0 && (flags3&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
-        testcase( pIn3->flags & MEM_Int );
-        testcase( pIn3->flags & MEM_Real );
-        testcase( pIn3->flags & MEM_IntReal );
-        tdsqlite3VdbeMemStringify(pIn3, encoding, 1);
-        testcase( (flags3&MEM_Dyn) != (pIn3->flags&MEM_Dyn) );
-        flags3 = (pIn3->flags & ~MEM_TypeMask) | (flags3 & MEM_TypeMask);
-      }
-    }
-    assert( pOp->p4type==P4_COLLSEQ || pOp->p4.pColl==0 );
-    res = tdsqlite3MemCompare(pIn3, pIn1, pOp->p4.pColl);
-  }
-compare_op:
-  /* At this point, res is negative, zero, or positive if reg[P1] is
-  ** less than, equal to, or greater than reg[P3], respectively.  Compute
-  ** the answer to this operator in res2, depending on what the comparison
-  ** operator actually is.  The next block of code depends on the fact
-  ** that the 6 comparison operators are consecutive integers in this
-  ** order:  NE, EQ, GT, LE, LT, GE */
-  assert( OP_Eq==OP_Ne+1 ); assert( OP_Gt==OP_Ne+2 ); assert( OP_Le==OP_Ne+3 );
-  assert( OP_Lt==OP_Ne+4 ); assert( OP_Ge==OP_Ne+5 );
-  if( res<0 ){                        /* ne, eq, gt, le, lt, ge */
-    static const unsigned char aLTb[] = { 1,  0,  0,  1,  1,  0 };
-    res2 = aLTb[pOp->opcode - OP_Ne];
-  }else if( res==0 ){
-    static const unsigned char aEQb[] = { 0,  1,  0,  1,  0,  1 };
-    res2 = aEQb[pOp->opcode - OP_Ne];
-  }else{
-    static const unsigned char aGTb[] = { 1,  0,  1,  0,  0,  1 };
-    res2 = aGTb[pOp->opcode - OP_Ne];
-  }
-
-  /* Undo any changes made by applyAffinity() to the input registers. */
-  assert( (pIn3->flags & MEM_Dyn) == (flags3 & MEM_Dyn) );
-  pIn3->flags = flags3;
-  assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) );
-  pIn1->flags = flags1;
-
-  if( pOp->p5 & SQLITE_STOREP2 ){
-    pOut = &aMem[pOp->p2];
-    iCompare = res;
-    if( (pOp->p5 & SQLITE_KEEPNULL)!=0 ){
-      /* The KEEPNULL flag prevents OP_Eq from overwriting a NULL with 1
-      ** and prevents OP_Ne from overwriting NULL with 0.  This flag
-      ** is only used in contexts where either:
-      **   (1) op==OP_Eq && (r[P2]==NULL || r[P2]==0)
-      **   (2) op==OP_Ne && (r[P2]==NULL || r[P2]==1)
-      ** Therefore it is not necessary to check the content of r[P2] for
-      ** NULL. */
-      assert( pOp->opcode==OP_Ne || pOp->opcode==OP_Eq );
-      assert( res2==0 || res2==1 );
-      testcase( res2==0 && pOp->opcode==OP_Eq );
-      testcase( res2==1 && pOp->opcode==OP_Eq );
-      testcase( res2==0 && pOp->opcode==OP_Ne );
-      testcase( res2==1 && pOp->opcode==OP_Ne );
-      if( (pOp->opcode==OP_Eq)==res2 ) break;
-    }
-    memAboutToChange(p, pOut);
-    MemSetTypeFlag(pOut, MEM_Int);
-    pOut->u.i = res2;
-    REGISTER_TRACE(pOp->p2, pOut);
-  }else{
-    VdbeBranchTaken(res2!=0, (pOp->p5 & SQLITE_NULLEQ)?2:3);
-    if( res2 ){
-      goto jump_to_p2;
-    }
-  }
-  break;
-}
-
-/* Opcode: ElseNotEq * P2 * * *
-**
-** This opcode must follow an OP_Lt or OP_Gt comparison operator.  There
-** can be zero or more OP_ReleaseReg opcodes intervening, but no other
-** opcodes are allowed to occur between this instruction and the previous
-** OP_Lt or OP_Gt.  Furthermore, the prior OP_Lt or OP_Gt must have the
-** SQLITE_STOREP2 bit set in the P5 field.
-**
-** If result of an OP_Eq comparison on the same two operands as the
-** prior OP_Lt or OP_Gt would have been NULL or false (0), then then
-** jump to P2.  If the result of an OP_Eq comparison on the two previous
-** operands would have been true (1), then fall through.
-*/
-case OP_ElseNotEq: {       /* same as TK_ESCAPE, jump */
-
-#ifdef SQLITE_DEBUG
-  /* Verify the preconditions of this opcode - that it follows an OP_Lt or
-  ** OP_Gt with the SQLITE_STOREP2 flag set, with zero or more intervening
-  ** OP_ReleaseReg opcodes */
-  int iAddr;
-  for(iAddr = (int)(pOp - aOp) - 1; ALWAYS(iAddr>=0); iAddr--){
-    if( aOp[iAddr].opcode==OP_ReleaseReg ) continue;
-    assert( aOp[iAddr].opcode==OP_Lt || aOp[iAddr].opcode==OP_Gt );
-    assert( aOp[iAddr].p5 & SQLITE_STOREP2 );
-    break;
-  }
-#endif /* SQLITE_DEBUG */
-  VdbeBranchTaken(iCompare!=0, 2);
-  if( iCompare!=0 ) goto jump_to_p2;
-  break;
-}
-
-
-/* Opcode: Permutation * * * P4 *
-**
-** Set the permutation used by the OP_Compare operator in the next
-** instruction.  The permutation is stored in the P4 operand.
-**
-** The permutation is only valid until the next OP_Compare that has
-** the OPFLAG_PERMUTE bit set in P5. Typically the OP_Permutation should 
-** occur immediately prior to the OP_Compare.
-**
-** The first integer in the P4 integer array is the length of the array
-** and does not become part of the permutation.
-*/
-case OP_Permutation: {
-  assert( pOp->p4type==P4_INTARRAY );
-  assert( pOp->p4.ai );
-  assert( pOp[1].opcode==OP_Compare );
-  assert( pOp[1].p5 & OPFLAG_PERMUTE );
-  break;
-}
-
-/* Opcode: Compare P1 P2 P3 P4 P5
-** Synopsis: r[P1@P3] <-> r[P2@P3]
-**
-** Compare two vectors of registers in reg(P1)..reg(P1+P3-1) (call this
-** vector "A") and in reg(P2)..reg(P2+P3-1) ("B").  Save the result of
-** the comparison for use by the next OP_Jump instruct.
-**
-** If P5 has the OPFLAG_PERMUTE bit set, then the order of comparison is
-** determined by the most recent OP_Permutation operator.  If the
-** OPFLAG_PERMUTE bit is clear, then register are compared in sequential
-** order.
-**
-** P4 is a KeyInfo structure that defines collating sequences and sort
-** orders for the comparison.  The permutation applies to registers
-** only.  The KeyInfo elements are used sequentially.
-**
-** The comparison is a sort comparison, so NULLs compare equal,
-** NULLs are less than numbers, numbers are less than strings,
-** and strings are less than blobs.
-*/
-case OP_Compare: {
-  int n;
-  int i;
-  int p1;
-  int p2;
-  const KeyInfo *pKeyInfo;
-  int idx;
-  CollSeq *pColl;    /* Collating sequence to use on this term */
-  int bRev;          /* True for DESCENDING sort order */
-  int *aPermute;     /* The permutation */
-
-  if( (pOp->p5 & OPFLAG_PERMUTE)==0 ){
-    aPermute = 0;
-  }else{
-    assert( pOp>aOp );
-    assert( pOp[-1].opcode==OP_Permutation );
-    assert( pOp[-1].p4type==P4_INTARRAY );
-    aPermute = pOp[-1].p4.ai + 1;
-    assert( aPermute!=0 );
-  }
-  n = pOp->p3;
-  pKeyInfo = pOp->p4.pKeyInfo;
-  assert( n>0 );
-  assert( pKeyInfo!=0 );
-  p1 = pOp->p1;
-  p2 = pOp->p2;
-#ifdef SQLITE_DEBUG
-  if( aPermute ){
-    int k, mx = 0;
-    for(k=0; k<n; k++) if( aPermute[k]>mx ) mx = aPermute[k];
-    assert( p1>0 && p1+mx<=(p->nMem+1 - p->nCursor)+1 );
-    assert( p2>0 && p2+mx<=(p->nMem+1 - p->nCursor)+1 );
-  }else{
-    assert( p1>0 && p1+n<=(p->nMem+1 - p->nCursor)+1 );
-    assert( p2>0 && p2+n<=(p->nMem+1 - p->nCursor)+1 );
-  }
-#endif /* SQLITE_DEBUG */
-  for(i=0; i<n; i++){
-    idx = aPermute ? aPermute[i] : i;
-    assert( memIsValid(&aMem[p1+idx]) );
-    assert( memIsValid(&aMem[p2+idx]) );
-    REGISTER_TRACE(p1+idx, &aMem[p1+idx]);
-    REGISTER_TRACE(p2+idx, &aMem[p2+idx]);
-    assert( i<pKeyInfo->nKeyField );
-    pColl = pKeyInfo->aColl[i];
-    bRev = (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_DESC);
-    iCompare = tdsqlite3MemCompare(&aMem[p1+idx], &aMem[p2+idx], pColl);
-    if( iCompare ){
-      if( (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_BIGNULL) 
-       && ((aMem[p1+idx].flags & MEM_Null) || (aMem[p2+idx].flags & MEM_Null))
-      ){
-        iCompare = -iCompare;
-      }
-      if( bRev ) iCompare = -iCompare;
-      break;
-    }
-  }
-  break;
-}
-
-/* Opcode: Jump P1 P2 P3 * *
-**
-** Jump to the instruction at address P1, P2, or P3 depending on whether
-** in the most recent OP_Compare instruction the P1 vector was less than
-** equal to, or greater than the P2 vector, respectively.
-*/
-case OP_Jump: {             /* jump */
-  if( iCompare<0 ){
-    VdbeBranchTaken(0,4); pOp = &aOp[pOp->p1 - 1];
-  }else if( iCompare==0 ){
-    VdbeBranchTaken(1,4); pOp = &aOp[pOp->p2 - 1];
-  }else{
-    VdbeBranchTaken(2,4); pOp = &aOp[pOp->p3 - 1];
-  }
-  break;
-}
-
-/* Opcode: And P1 P2 P3 * *
-** Synopsis: r[P3]=(r[P1] && r[P2])
-**
-** Take the logical AND of the values in registers P1 and P2 and
-** write the result into register P3.
-**
-** If either P1 or P2 is 0 (false) then the result is 0 even if
-** the other input is NULL.  A NULL and true or two NULLs give
-** a NULL output.
-*/
-/* Opcode: Or P1 P2 P3 * *
-** Synopsis: r[P3]=(r[P1] || r[P2])
-**
-** Take the logical OR of the values in register P1 and P2 and
-** store the answer in register P3.
-**
-** If either P1 or P2 is nonzero (true) then the result is 1 (true)
-** even if the other input is NULL.  A NULL and false or two NULLs
-** give a NULL output.
-*/
-case OP_And:              /* same as TK_AND, in1, in2, out3 */
-case OP_Or: {             /* same as TK_OR, in1, in2, out3 */
-  int v1;    /* Left operand:  0==FALSE, 1==TRUE, 2==UNKNOWN or NULL */
-  int v2;    /* Right operand: 0==FALSE, 1==TRUE, 2==UNKNOWN or NULL */
-
-  v1 = tdsqlite3VdbeBooleanValue(&aMem[pOp->p1], 2);
-  v2 = tdsqlite3VdbeBooleanValue(&aMem[pOp->p2], 2);
-  if( pOp->opcode==OP_And ){
-    static const unsigned char and_logic[] = { 0, 0, 0, 0, 1, 2, 0, 2, 2 };
-    v1 = and_logic[v1*3+v2];
-  }else{
-    static const unsigned char or_logic[] = { 0, 1, 2, 1, 1, 1, 2, 1, 2 };
-    v1 = or_logic[v1*3+v2];
-  }
-  pOut = &aMem[pOp->p3];
-  if( v1==2 ){
-    MemSetTypeFlag(pOut, MEM_Null);
-  }else{
-    pOut->u.i = v1;
-    MemSetTypeFlag(pOut, MEM_Int);
-  }
-  break;
-}
-
-/* Opcode: IsTrue P1 P2 P3 P4 *
-** Synopsis: r[P2] = coalesce(r[P1]==TRUE,P3) ^ P4
-**
-** This opcode implements the IS TRUE, IS FALSE, IS NOT TRUE, and
-** IS NOT FALSE operators.
-**
-** Interpret the value in register P1 as a boolean value.  Store that
-** boolean (a 0 or 1) in register P2.  Or if the value in register P1 is 
-** NULL, then the P3 is stored in register P2.  Invert the answer if P4
-** is 1.
-**
-** The logic is summarized like this:
-**
-** <ul> 
-** <li> If P3==0 and P4==0  then  r[P2] := r[P1] IS TRUE
-** <li> If P3==1 and P4==1  then  r[P2] := r[P1] IS FALSE
-** <li> If P3==0 and P4==1  then  r[P2] := r[P1] IS NOT TRUE
-** <li> If P3==1 and P4==0  then  r[P2] := r[P1] IS NOT FALSE
-** </ul>
-*/
-case OP_IsTrue: {               /* in1, out2 */
-  assert( pOp->p4type==P4_INT32 );
-  assert( pOp->p4.i==0 || pOp->p4.i==1 );
-  assert( pOp->p3==0 || pOp->p3==1 );
-  tdsqlite3VdbeMemSetInt64(&aMem[pOp->p2],
-      tdsqlite3VdbeBooleanValue(&aMem[pOp->p1], pOp->p3) ^ pOp->p4.i);
-  break;
-}
-
-/* Opcode: Not P1 P2 * * *
-** Synopsis: r[P2]= !r[P1]
-**
-** Interpret the value in register P1 as a boolean value.  Store the
-** boolean complement in register P2.  If the value in register P1 is 
-** NULL, then a NULL is stored in P2.
-*/
-case OP_Not: {                /* same as TK_NOT, in1, out2 */
-  pIn1 = &aMem[pOp->p1];
-  pOut = &aMem[pOp->p2];
-  if( (pIn1->flags & MEM_Null)==0 ){
-    tdsqlite3VdbeMemSetInt64(pOut, !tdsqlite3VdbeBooleanValue(pIn1,0));
-  }else{
-    tdsqlite3VdbeMemSetNull(pOut);
-  }
-  break;
-}
-
-/* Opcode: BitNot P1 P2 * * *
-** Synopsis: r[P2]= ~r[P1]
-**
-** Interpret the content of register P1 as an integer.  Store the
-** ones-complement of the P1 value into register P2.  If P1 holds
-** a NULL then store a NULL in P2.
-*/
-case OP_BitNot: {             /* same as TK_BITNOT, in1, out2 */
-  pIn1 = &aMem[pOp->p1];
-  pOut = &aMem[pOp->p2];
-  tdsqlite3VdbeMemSetNull(pOut);
-  if( (pIn1->flags & MEM_Null)==0 ){
-    pOut->flags = MEM_Int;
-    pOut->u.i = ~tdsqlite3VdbeIntValue(pIn1);
-  }
-  break;
-}
-
-/* Opcode: Once P1 P2 * * *
-**
-** Fall through to the next instruction the first time this opcode is
-** encountered on each invocation of the byte-code program.  Jump to P2
-** on the second and all subsequent encounters during the same invocation.
-**
-** Top-level programs determine first invocation by comparing the P1
-** operand against the P1 operand on the OP_Init opcode at the beginning
-** of the program.  If the P1 values differ, then fall through and make
-** the P1 of this opcode equal to the P1 of OP_Init.  If P1 values are
-** the same then take the jump.
-**
-** For subprograms, there is a bitmask in the VdbeFrame that determines
-** whether or not the jump should be taken.  The bitmask is necessary
-** because the self-altering code trick does not work for recursive
-** triggers.
-*/
-case OP_Once: {             /* jump */
-  u32 iAddr;                /* Address of this instruction */
-  assert( p->aOp[0].opcode==OP_Init );
-  if( p->pFrame ){
-    iAddr = (int)(pOp - p->aOp);
-    if( (p->pFrame->aOnce[iAddr/8] & (1<<(iAddr & 7)))!=0 ){
-      VdbeBranchTaken(1, 2);
-      goto jump_to_p2;
-    }
-    p->pFrame->aOnce[iAddr/8] |= 1<<(iAddr & 7);
-  }else{
-    if( p->aOp[0].p1==pOp->p1 ){
-      VdbeBranchTaken(1, 2);
-      goto jump_to_p2;
-    }
-  }
-  VdbeBranchTaken(0, 2);
-  pOp->p1 = p->aOp[0].p1;
-  break;
-}
-
-/* Opcode: If P1 P2 P3 * *
-**
-** Jump to P2 if the value in register P1 is true.  The value
-** is considered true if it is numeric and non-zero.  If the value
-** in P1 is NULL then take the jump if and only if P3 is non-zero.
-*/
-case OP_If:  {               /* jump, in1 */
-  int c;
-  c = tdsqlite3VdbeBooleanValue(&aMem[pOp->p1], pOp->p3);
-  VdbeBranchTaken(c!=0, 2);
-  if( c ) goto jump_to_p2;
-  break;
-}
-
-/* Opcode: IfNot P1 P2 P3 * *
-**
-** Jump to P2 if the value in register P1 is False.  The value
-** is considered false if it has a numeric value of zero.  If the value
-** in P1 is NULL then take the jump if and only if P3 is non-zero.
-*/
-case OP_IfNot: {            /* jump, in1 */
-  int c;
-  c = !tdsqlite3VdbeBooleanValue(&aMem[pOp->p1], !pOp->p3);
-  VdbeBranchTaken(c!=0, 2);
-  if( c ) goto jump_to_p2;
-  break;
-}
-
-/* Opcode: IsNull P1 P2 * * *
-** Synopsis: if r[P1]==NULL goto P2
-**
-** Jump to P2 if the value in register P1 is NULL.
-*/
-case OP_IsNull: {            /* same as TK_ISNULL, jump, in1 */
-  pIn1 = &aMem[pOp->p1];
-  VdbeBranchTaken( (pIn1->flags & MEM_Null)!=0, 2);
-  if( (pIn1->flags & MEM_Null)!=0 ){
-    goto jump_to_p2;
-  }
-  break;
-}
-
-/* Opcode: NotNull P1 P2 * * *
-** Synopsis: if r[P1]!=NULL goto P2
-**
-** Jump to P2 if the value in register P1 is not NULL.  
-*/
-case OP_NotNull: {            /* same as TK_NOTNULL, jump, in1 */
-  pIn1 = &aMem[pOp->p1];
-  VdbeBranchTaken( (pIn1->flags & MEM_Null)==0, 2);
-  if( (pIn1->flags & MEM_Null)==0 ){
-    goto jump_to_p2;
-  }
-  break;
-}
-
-/* Opcode: IfNullRow P1 P2 P3 * *
-** Synopsis: if P1.nullRow then r[P3]=NULL, goto P2
-**
-** Check the cursor P1 to see if it is currently pointing at a NULL row.
-** If it is, then set register P3 to NULL and jump immediately to P2.
-** If P1 is not on a NULL row, then fall through without making any
-** changes.
-*/
-case OP_IfNullRow: {         /* jump */
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  assert( p->apCsr[pOp->p1]!=0 );
-  if( p->apCsr[pOp->p1]->nullRow ){
-    tdsqlite3VdbeMemSetNull(aMem + pOp->p3);
-    goto jump_to_p2;
-  }
-  break;
-}
-
-#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC
-/* Opcode: Offset P1 P2 P3 * *
-** Synopsis: r[P3] = sqlite_offset(P1)
-**
-** Store in register r[P3] the byte offset into the database file that is the
-** start of the payload for the record at which that cursor P1 is currently
-** pointing.
-**
-** P2 is the column number for the argument to the sqlite_offset() function.
-** This opcode does not use P2 itself, but the P2 value is used by the
-** code generator.  The P1, P2, and P3 operands to this opcode are the
-** same as for OP_Column.
-**
-** This opcode is only available if SQLite is compiled with the
-** -DSQLITE_ENABLE_OFFSET_SQL_FUNC option.
-*/
-case OP_Offset: {          /* out3 */
-  VdbeCursor *pC;    /* The VDBE cursor */
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  pOut = &p->aMem[pOp->p3];
-  if( NEVER(pC==0) || pC->eCurType!=CURTYPE_BTREE ){
-    tdsqlite3VdbeMemSetNull(pOut);
-  }else{
-    tdsqlite3VdbeMemSetInt64(pOut, tdsqlite3BtreeOffset(pC->uc.pCursor));
-  }
-  break;
-}
-#endif /* SQLITE_ENABLE_OFFSET_SQL_FUNC */
-
-/* Opcode: Column P1 P2 P3 P4 P5
-** Synopsis: r[P3]=PX
-**
-** Interpret the data that cursor P1 points to as a structure built using
-** the MakeRecord instruction.  (See the MakeRecord opcode for additional
-** information about the format of the data.)  Extract the P2-th column
-** from this record.  If there are less that (P2+1) 
-** values in the record, extract a NULL.
-**
-** The value extracted is stored in register P3.
-**
-** If the record contains fewer than P2 fields, then extract a NULL.  Or,
-** if the P4 argument is a P4_MEM use the value of the P4 argument as
-** the result.
-**
-** If the OPFLAG_LENGTHARG and OPFLAG_TYPEOFARG bits are set on P5 then
-** the result is guaranteed to only be used as the argument of a length()
-** or typeof() function, respectively.  The loading of large blobs can be
-** skipped for length() and all content loading can be skipped for typeof().
-*/
-case OP_Column: {
-  int p2;            /* column number to retrieve */
-  VdbeCursor *pC;    /* The VDBE cursor */
-  BtCursor *pCrsr;   /* The BTree cursor */
-  u32 *aOffset;      /* aOffset[i] is offset to start of data for i-th column */
-  int len;           /* The length of the serialized data for the column */
-  int i;             /* Loop counter */
-  Mem *pDest;        /* Where to write the extracted value */
-  Mem sMem;          /* For storing the record being decoded */
-  const u8 *zData;   /* Part of the record being decoded */
-  const u8 *zHdr;    /* Next unparsed byte of the header */
-  const u8 *zEndHdr; /* Pointer to first byte after the header */
-  u64 offset64;      /* 64-bit offset */
-  u32 t;             /* A type code from the record header */
-  Mem *pReg;         /* PseudoTable input register */
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  p2 = pOp->p2;
-
-  /* If the cursor cache is stale (meaning it is not currently point at
-  ** the correct row) then bring it up-to-date by doing the necessary 
-  ** B-Tree seek. */
-  rc = tdsqlite3VdbeCursorMoveto(&pC, &p2);
-  if( rc ) goto abort_due_to_error;
-
-  assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) );
-  pDest = &aMem[pOp->p3];
-  memAboutToChange(p, pDest);
-  assert( pC!=0 );
-  assert( p2<pC->nField );
-  aOffset = pC->aOffset;
-  assert( pC->eCurType!=CURTYPE_VTAB );
-  assert( pC->eCurType!=CURTYPE_PSEUDO || pC->nullRow );
-  assert( pC->eCurType!=CURTYPE_SORTER );
-
-  if( pC->cacheStatus!=p->cacheCtr ){                /*OPTIMIZATION-IF-FALSE*/
-    if( pC->nullRow ){
-      if( pC->eCurType==CURTYPE_PSEUDO ){
-        /* For the special case of as pseudo-cursor, the seekResult field
-        ** identifies the register that holds the record */
-        assert( pC->seekResult>0 );
-        pReg = &aMem[pC->seekResult];
-        assert( pReg->flags & MEM_Blob );
-        assert( memIsValid(pReg) );
-        pC->payloadSize = pC->szRow = pReg->n;
-        pC->aRow = (u8*)pReg->z;
-      }else{
-        tdsqlite3VdbeMemSetNull(pDest);
-        goto op_column_out;
-      }
-    }else{
-      pCrsr = pC->uc.pCursor;
-      assert( pC->eCurType==CURTYPE_BTREE );
-      assert( pCrsr );
-      assert( tdsqlite3BtreeCursorIsValid(pCrsr) );
-      pC->payloadSize = tdsqlite3BtreePayloadSize(pCrsr);
-      pC->aRow = tdsqlite3BtreePayloadFetch(pCrsr, &pC->szRow);
-      assert( pC->szRow<=pC->payloadSize );
-      assert( pC->szRow<=65536 );  /* Maximum page size is 64KiB */
-      if( pC->payloadSize > (u32)db->aLimit[SQLITE_LIMIT_LENGTH] ){
-        goto too_big;
-      }
-    }
-    pC->cacheStatus = p->cacheCtr;
-    pC->iHdrOffset = getVarint32(pC->aRow, aOffset[0]);
-    pC->nHdrParsed = 0;
-
-
-    if( pC->szRow<aOffset[0] ){      /*OPTIMIZATION-IF-FALSE*/
-      /* pC->aRow does not have to hold the entire row, but it does at least
-      ** need to cover the header of the record.  If pC->aRow does not contain
-      ** the complete header, then set it to zero, forcing the header to be
-      ** dynamically allocated. */
-      pC->aRow = 0;
-      pC->szRow = 0;
-
-      /* Make sure a corrupt database has not given us an oversize header.
-      ** Do this now to avoid an oversize memory allocation.
-      **
-      ** Type entries can be between 1 and 5 bytes each.  But 4 and 5 byte
-      ** types use so much data space that there can only be 4096 and 32 of
-      ** them, respectively.  So the maximum header length results from a
-      ** 3-byte type for each of the maximum of 32768 columns plus three
-      ** extra bytes for the header length itself.  32768*3 + 3 = 98307.
-      */
-      if( aOffset[0] > 98307 || aOffset[0] > pC->payloadSize ){
-        goto op_column_corrupt;
-      }
-    }else{
-      /* This is an optimization.  By skipping over the first few tests
-      ** (ex: pC->nHdrParsed<=p2) in the next section, we achieve a
-      ** measurable performance gain.
-      **
-      ** This branch is taken even if aOffset[0]==0.  Such a record is never
-      ** generated by SQLite, and could be considered corruption, but we
-      ** accept it for historical reasons.  When aOffset[0]==0, the code this
-      ** branch jumps to reads past the end of the record, but never more
-      ** than a few bytes.  Even if the record occurs at the end of the page
-      ** content area, the "page header" comes after the page content and so
-      ** this overread is harmless.  Similar overreads can occur for a corrupt
-      ** database file.
-      */
-      zData = pC->aRow;
-      assert( pC->nHdrParsed<=p2 );         /* Conditional skipped */
-      testcase( aOffset[0]==0 );
-      goto op_column_read_header;
-    }
-  }
-
-  /* Make sure at least the first p2+1 entries of the header have been
-  ** parsed and valid information is in aOffset[] and pC->aType[].
-  */
-  if( pC->nHdrParsed<=p2 ){
-    /* If there is more header available for parsing in the record, try
-    ** to extract additional fields up through the p2+1-th field 
-    */
-    if( pC->iHdrOffset<aOffset[0] ){
-      /* Make sure zData points to enough of the record to cover the header. */
-      if( pC->aRow==0 ){
-        memset(&sMem, 0, sizeof(sMem));
-        rc = tdsqlite3VdbeMemFromBtree(pC->uc.pCursor, 0, aOffset[0], &sMem);
-        if( rc!=SQLITE_OK ) goto abort_due_to_error;
-        zData = (u8*)sMem.z;
-      }else{
-        zData = pC->aRow;
-      }
-  
-      /* Fill in pC->aType[i] and aOffset[i] values through the p2-th field. */
-    op_column_read_header:
-      i = pC->nHdrParsed;
-      offset64 = aOffset[i];
-      zHdr = zData + pC->iHdrOffset;
-      zEndHdr = zData + aOffset[0];
-      testcase( zHdr>=zEndHdr );
-      do{
-        if( (pC->aType[i] = t = zHdr[0])<0x80 ){
-          zHdr++;
-          offset64 += tdsqlite3VdbeOneByteSerialTypeLen(t);
-        }else{
-          zHdr += tdsqlite3GetVarint32(zHdr, &t);
-          pC->aType[i] = t;
-          offset64 += tdsqlite3VdbeSerialTypeLen(t);
-        }
-        aOffset[++i] = (u32)(offset64 & 0xffffffff);
-      }while( i<=p2 && zHdr<zEndHdr );
-
-      /* The record is corrupt if any of the following are true:
-      ** (1) the bytes of the header extend past the declared header size
-      ** (2) the entire header was used but not all data was used
-      ** (3) the end of the data extends beyond the end of the record.
-      */
-      if( (zHdr>=zEndHdr && (zHdr>zEndHdr || offset64!=pC->payloadSize))
-       || (offset64 > pC->payloadSize)
-      ){
-        if( aOffset[0]==0 ){
-          i = 0;
-          zHdr = zEndHdr;
-        }else{
-          if( pC->aRow==0 ) tdsqlite3VdbeMemRelease(&sMem);
-          goto op_column_corrupt;
-        }
-      }
-
-      pC->nHdrParsed = i;
-      pC->iHdrOffset = (u32)(zHdr - zData);
-      if( pC->aRow==0 ) tdsqlite3VdbeMemRelease(&sMem);
-    }else{
-      t = 0;
-    }
-
-    /* If after trying to extract new entries from the header, nHdrParsed is
-    ** still not up to p2, that means that the record has fewer than p2
-    ** columns.  So the result will be either the default value or a NULL.
-    */
-    if( pC->nHdrParsed<=p2 ){
-      if( pOp->p4type==P4_MEM ){
-        tdsqlite3VdbeMemShallowCopy(pDest, pOp->p4.pMem, MEM_Static);
-      }else{
-        tdsqlite3VdbeMemSetNull(pDest);
-      }
-      goto op_column_out;
-    }
-  }else{
-    t = pC->aType[p2];
-  }
-
-  /* Extract the content for the p2+1-th column.  Control can only
-  ** reach this point if aOffset[p2], aOffset[p2+1], and pC->aType[p2] are
-  ** all valid.
-  */
-  assert( p2<pC->nHdrParsed );
-  assert( rc==SQLITE_OK );
-  assert( tdsqlite3VdbeCheckMemInvariants(pDest) );
-  if( VdbeMemDynamic(pDest) ){
-    tdsqlite3VdbeMemSetNull(pDest);
-  }
-  assert( t==pC->aType[p2] );
-  if( pC->szRow>=aOffset[p2+1] ){
-    /* This is the common case where the desired content fits on the original
-    ** page - where the content is not on an overflow page */
-    zData = pC->aRow + aOffset[p2];
-    if( t<12 ){
-      tdsqlite3VdbeSerialGet(zData, t, pDest);
-    }else{
-      /* If the column value is a string, we need a persistent value, not
-      ** a MEM_Ephem value.  This branch is a fast short-cut that is equivalent
-      ** to calling tdsqlite3VdbeSerialGet() and tdsqlite3VdbeDeephemeralize().
-      */
-      static const u16 aFlag[] = { MEM_Blob, MEM_Str|MEM_Term };
-      pDest->n = len = (t-12)/2;
-      pDest->enc = encoding;
-      if( pDest->szMalloc < len+2 ){
-        pDest->flags = MEM_Null;
-        if( tdsqlite3VdbeMemGrow(pDest, len+2, 0) ) goto no_mem;
-      }else{
-        pDest->z = pDest->zMalloc;
-      }
-      memcpy(pDest->z, zData, len);
-      pDest->z[len] = 0;
-      pDest->z[len+1] = 0;
-      pDest->flags = aFlag[t&1];
-    }
-  }else{
-    pDest->enc = encoding;
-    /* This branch happens only when content is on overflow pages */
-    if( ((pOp->p5 & (OPFLAG_LENGTHARG|OPFLAG_TYPEOFARG))!=0
-          && ((t>=12 && (t&1)==0) || (pOp->p5 & OPFLAG_TYPEOFARG)!=0))
-     || (len = tdsqlite3VdbeSerialTypeLen(t))==0
-    ){
-      /* Content is irrelevant for
-      **    1. the typeof() function,
-      **    2. the length(X) function if X is a blob, and
-      **    3. if the content length is zero.
-      ** So we might as well use bogus content rather than reading
-      ** content from disk. 
-      **
-      ** Although tdsqlite3VdbeSerialGet() may read at most 8 bytes from the
-      ** buffer passed to it, debugging function VdbeMemPrettyPrint() may
-      ** read more.  Use the global constant tdsqlite3CtypeMap[] as the array,
-      ** as that array is 256 bytes long (plenty for VdbeMemPrettyPrint())
-      ** and it begins with a bunch of zeros.
-      */
-      tdsqlite3VdbeSerialGet((u8*)tdsqlite3CtypeMap, t, pDest);
-    }else{
-      rc = tdsqlite3VdbeMemFromBtree(pC->uc.pCursor, aOffset[p2], len, pDest);
-      if( rc!=SQLITE_OK ) goto abort_due_to_error;
-      tdsqlite3VdbeSerialGet((const u8*)pDest->z, t, pDest);
-      pDest->flags &= ~MEM_Ephem;
-    }
-  }
-
-op_column_out:
-  UPDATE_MAX_BLOBSIZE(pDest);
-  REGISTER_TRACE(pOp->p3, pDest);
-  break;
-
-op_column_corrupt:
-  if( aOp[0].p3>0 ){
-    pOp = &aOp[aOp[0].p3-1];
-    break;
-  }else{
-    rc = SQLITE_CORRUPT_BKPT;
-    goto abort_due_to_error;
-  }
-}
-
-/* Opcode: Affinity P1 P2 * P4 *
-** Synopsis: affinity(r[P1@P2])
-**
-** Apply affinities to a range of P2 registers starting with P1.
-**
-** P4 is a string that is P2 characters long. The N-th character of the
-** string indicates the column affinity that should be used for the N-th
-** memory cell in the range.
-*/
-case OP_Affinity: {
-  const char *zAffinity;   /* The affinity to be applied */
-
-  zAffinity = pOp->p4.z;
-  assert( zAffinity!=0 );
-  assert( pOp->p2>0 );
-  assert( zAffinity[pOp->p2]==0 );
-  pIn1 = &aMem[pOp->p1];
-  while( 1 /*exit-by-break*/ ){
-    assert( pIn1 <= &p->aMem[(p->nMem+1 - p->nCursor)] );
-    assert( zAffinity[0]==SQLITE_AFF_NONE || memIsValid(pIn1) );
-    applyAffinity(pIn1, zAffinity[0], encoding);
-    if( zAffinity[0]==SQLITE_AFF_REAL && (pIn1->flags & MEM_Int)!=0 ){
-      /* When applying REAL affinity, if the result is still an MEM_Int
-      ** that will fit in 6 bytes, then change the type to MEM_IntReal
-      ** so that we keep the high-resolution integer value but know that
-      ** the type really wants to be REAL. */
-      testcase( pIn1->u.i==140737488355328LL );
-      testcase( pIn1->u.i==140737488355327LL );
-      testcase( pIn1->u.i==-140737488355328LL );
-      testcase( pIn1->u.i==-140737488355329LL );
-      if( pIn1->u.i<=140737488355327LL && pIn1->u.i>=-140737488355328LL ){
-        pIn1->flags |= MEM_IntReal;
-        pIn1->flags &= ~MEM_Int;
-      }else{
-        pIn1->u.r = (double)pIn1->u.i;
-        pIn1->flags |= MEM_Real;
-        pIn1->flags &= ~MEM_Int;
-      }
-    }
-    REGISTER_TRACE((int)(pIn1-aMem), pIn1);
-    zAffinity++;
-    if( zAffinity[0]==0 ) break;
-    pIn1++;
-  }
-  break;
-}
-
-/* Opcode: MakeRecord P1 P2 P3 P4 *
-** Synopsis: r[P3]=mkrec(r[P1@P2])
-**
-** Convert P2 registers beginning with P1 into the [record format]
-** use as a data record in a database table or as a key
-** in an index.  The OP_Column opcode can decode the record later.
-**
-** P4 may be a string that is P2 characters long.  The N-th character of the
-** string indicates the column affinity that should be used for the N-th
-** field of the index key.
-**
-** The mapping from character to affinity is given by the SQLITE_AFF_
-** macros defined in sqliteInt.h.
-**
-** If P4 is NULL then all index fields have the affinity BLOB.
-*/
-case OP_MakeRecord: {
-  Mem *pRec;             /* The new record */
-  u64 nData;             /* Number of bytes of data space */
-  int nHdr;              /* Number of bytes of header space */
-  i64 nByte;             /* Data space required for this record */
-  i64 nZero;             /* Number of zero bytes at the end of the record */
-  int nVarint;           /* Number of bytes in a varint */
-  u32 serial_type;       /* Type field */
-  Mem *pData0;           /* First field to be combined into the record */
-  Mem *pLast;            /* Last field of the record */
-  int nField;            /* Number of fields in the record */
-  char *zAffinity;       /* The affinity string for the record */
-  int file_format;       /* File format to use for encoding */
-  u32 len;               /* Length of a field */
-  u8 *zHdr;              /* Where to write next byte of the header */
-  u8 *zPayload;          /* Where to write next byte of the payload */
-
-  /* Assuming the record contains N fields, the record format looks
-  ** like this:
-  **
-  ** ------------------------------------------------------------------------
-  ** | hdr-size | type 0 | type 1 | ... | type N-1 | data0 | ... | data N-1 | 
-  ** ------------------------------------------------------------------------
-  **
-  ** Data(0) is taken from register P1.  Data(1) comes from register P1+1
-  ** and so forth.
-  **
-  ** Each type field is a varint representing the serial type of the 
-  ** corresponding data element (see tdsqlite3VdbeSerialType()). The
-  ** hdr-size field is also a varint which is the offset from the beginning
-  ** of the record to data0.
-  */
-  nData = 0;         /* Number of bytes of data space */
-  nHdr = 0;          /* Number of bytes of header space */
-  nZero = 0;         /* Number of zero bytes at the end of the record */
-  nField = pOp->p1;
-  zAffinity = pOp->p4.z;
-  assert( nField>0 && pOp->p2>0 && pOp->p2+nField<=(p->nMem+1 - p->nCursor)+1 );
-  pData0 = &aMem[nField];
-  nField = pOp->p2;
-  pLast = &pData0[nField-1];
-  file_format = p->minWriteFileFormat;
-
-  /* Identify the output register */
-  assert( pOp->p3<pOp->p1 || pOp->p3>=pOp->p1+pOp->p2 );
-  pOut = &aMem[pOp->p3];
-  memAboutToChange(p, pOut);
-
-  /* Apply the requested affinity to all inputs
-  */
-  assert( pData0<=pLast );
-  if( zAffinity ){
-    pRec = pData0;
-    do{
-      applyAffinity(pRec, zAffinity[0], encoding);
-      if( zAffinity[0]==SQLITE_AFF_REAL && (pRec->flags & MEM_Int) ){
-        pRec->flags |= MEM_IntReal;
-        pRec->flags &= ~(MEM_Int);
-      }
-      REGISTER_TRACE((int)(pRec-aMem), pRec);
-      zAffinity++;
-      pRec++;
-      assert( zAffinity[0]==0 || pRec<=pLast );
-    }while( zAffinity[0] );
-  }
-
-#ifdef SQLITE_ENABLE_NULL_TRIM
-  /* NULLs can be safely trimmed from the end of the record, as long as
-  ** as the schema format is 2 or more and none of the omitted columns
-  ** have a non-NULL default value.  Also, the record must be left with
-  ** at least one field.  If P5>0 then it will be one more than the
-  ** index of the right-most column with a non-NULL default value */
-  if( pOp->p5 ){
-    while( (pLast->flags & MEM_Null)!=0 && nField>pOp->p5 ){
-      pLast--;
-      nField--;
-    }
-  }
-#endif
-
-  /* Loop through the elements that will make up the record to figure
-  ** out how much space is required for the new record.  After this loop,
-  ** the Mem.uTemp field of each term should hold the serial-type that will
-  ** be used for that term in the generated record:
-  **
-  **   Mem.uTemp value    type
-  **   ---------------    ---------------
-  **      0               NULL
-  **      1               1-byte signed integer
-  **      2               2-byte signed integer
-  **      3               3-byte signed integer
-  **      4               4-byte signed integer
-  **      5               6-byte signed integer
-  **      6               8-byte signed integer
-  **      7               IEEE float
-  **      8               Integer constant 0
-  **      9               Integer constant 1
-  **     10,11            reserved for expansion
-  **    N>=12 and even    BLOB
-  **    N>=13 and odd     text
-  **
-  ** The following additional values are computed:
-  **     nHdr        Number of bytes needed for the record header
-  **     nData       Number of bytes of data space needed for the record
-  **     nZero       Zero bytes at the end of the record
-  */
-  pRec = pLast;
-  do{
-    assert( memIsValid(pRec) );
-    if( pRec->flags & MEM_Null ){
-      if( pRec->flags & MEM_Zero ){
-        /* Values with MEM_Null and MEM_Zero are created by xColumn virtual
-        ** table methods that never invoke tdsqlite3_result_xxxxx() while
-        ** computing an unchanging column value in an UPDATE statement.
-        ** Give such values a special internal-use-only serial-type of 10
-        ** so that they can be passed through to xUpdate and have
-        ** a true tdsqlite3_value_nochange(). */
-        assert( pOp->p5==OPFLAG_NOCHNG_MAGIC || CORRUPT_DB );
-        pRec->uTemp = 10;
-      }else{
-        pRec->uTemp = 0;
-      }
-      nHdr++;
-    }else if( pRec->flags & (MEM_Int|MEM_IntReal) ){
-      /* Figure out whether to use 1, 2, 4, 6 or 8 bytes. */
-      i64 i = pRec->u.i;
-      u64 uu;
-      testcase( pRec->flags & MEM_Int );
-      testcase( pRec->flags & MEM_IntReal );
-      if( i<0 ){
-        uu = ~i;
-      }else{
-        uu = i;
-      }
-      nHdr++;
-      testcase( uu==127 );               testcase( uu==128 );
-      testcase( uu==32767 );             testcase( uu==32768 );
-      testcase( uu==8388607 );           testcase( uu==8388608 );
-      testcase( uu==2147483647 );        testcase( uu==2147483648 );
-      testcase( uu==140737488355327LL ); testcase( uu==140737488355328LL );
-      if( uu<=127 ){
-        if( (i&1)==i && file_format>=4 ){
-          pRec->uTemp = 8+(u32)uu;
-        }else{
-          nData++;
-          pRec->uTemp = 1;
-        }
-      }else if( uu<=32767 ){
-        nData += 2;
-        pRec->uTemp = 2;
-      }else if( uu<=8388607 ){
-        nData += 3;
-        pRec->uTemp = 3;
-      }else if( uu<=2147483647 ){
-        nData += 4;
-        pRec->uTemp = 4;
-      }else if( uu<=140737488355327LL ){
-        nData += 6;
-        pRec->uTemp = 5;
-      }else{
-        nData += 8;
-        if( pRec->flags & MEM_IntReal ){
-          /* If the value is IntReal and is going to take up 8 bytes to store
-          ** as an integer, then we might as well make it an 8-byte floating
-          ** point value */
-          pRec->u.r = (double)pRec->u.i;
-          pRec->flags &= ~MEM_IntReal;
-          pRec->flags |= MEM_Real;
-          pRec->uTemp = 7;
-        }else{
-          pRec->uTemp = 6;
-        }
-      }
-    }else if( pRec->flags & MEM_Real ){
-      nHdr++;
-      nData += 8;
-      pRec->uTemp = 7;
-    }else{
-      assert( db->mallocFailed || pRec->flags&(MEM_Str|MEM_Blob) );
-      assert( pRec->n>=0 );
-      len = (u32)pRec->n;
-      serial_type = (len*2) + 12 + ((pRec->flags & MEM_Str)!=0);
-      if( pRec->flags & MEM_Zero ){
-        serial_type += pRec->u.nZero*2;
-        if( nData ){
-          if( tdsqlite3VdbeMemExpandBlob(pRec) ) goto no_mem;
-          len += pRec->u.nZero;
-        }else{
-          nZero += pRec->u.nZero;
-        }
-      }
-      nData += len;
-      nHdr += tdsqlite3VarintLen(serial_type);
-      pRec->uTemp = serial_type;
-    }
-    if( pRec==pData0 ) break;
-    pRec--;
-  }while(1);
-
-  /* EVIDENCE-OF: R-22564-11647 The header begins with a single varint
-  ** which determines the total number of bytes in the header. The varint
-  ** value is the size of the header in bytes including the size varint
-  ** itself. */
-  testcase( nHdr==126 );
-  testcase( nHdr==127 );
-  if( nHdr<=126 ){
-    /* The common case */
-    nHdr += 1;
-  }else{
-    /* Rare case of a really large header */
-    nVarint = tdsqlite3VarintLen(nHdr);
-    nHdr += nVarint;
-    if( nVarint<tdsqlite3VarintLen(nHdr) ) nHdr++;
-  }
-  nByte = nHdr+nData;
-
-  /* Make sure the output register has a buffer large enough to store 
-  ** the new record. The output register (pOp->p3) is not allowed to
-  ** be one of the input registers (because the following call to
-  ** tdsqlite3VdbeMemClearAndResize() could clobber the value before it is used).
-  */
-  if( nByte+nZero<=pOut->szMalloc ){
-    /* The output register is already large enough to hold the record.
-    ** No error checks or buffer enlargement is required */
-    pOut->z = pOut->zMalloc;
-  }else{
-    /* Need to make sure that the output is not too big and then enlarge
-    ** the output register to hold the full result */
-    if( nByte+nZero>db->aLimit[SQLITE_LIMIT_LENGTH] ){
-      goto too_big;
-    }
-    if( tdsqlite3VdbeMemClearAndResize(pOut, (int)nByte) ){
-      goto no_mem;
-    }
-  }
-  pOut->n = (int)nByte;
-  pOut->flags = MEM_Blob;
-  if( nZero ){
-    pOut->u.nZero = nZero;
-    pOut->flags |= MEM_Zero;
-  }
-  UPDATE_MAX_BLOBSIZE(pOut);
-  zHdr = (u8 *)pOut->z;
-  zPayload = zHdr + nHdr;
-
-  /* Write the record */
-  zHdr += putVarint32(zHdr, nHdr);
-  assert( pData0<=pLast );
-  pRec = pData0;
-  do{
-    serial_type = pRec->uTemp;
-    /* EVIDENCE-OF: R-06529-47362 Following the size varint are one or more
-    ** additional varints, one per column. */
-    zHdr += putVarint32(zHdr, serial_type);            /* serial type */
-    /* EVIDENCE-OF: R-64536-51728 The values for each column in the record
-    ** immediately follow the header. */
-    zPayload += tdsqlite3VdbeSerialPut(zPayload, pRec, serial_type); /* content */
-  }while( (++pRec)<=pLast );
-  assert( nHdr==(int)(zHdr - (u8*)pOut->z) );
-  assert( nByte==(int)(zPayload - (u8*)pOut->z) );
-
-  assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) );
-  REGISTER_TRACE(pOp->p3, pOut);
-  break;
-}
-
-/* Opcode: Count P1 P2 * * *
-** Synopsis: r[P2]=count()
-**
-** Store the number of entries (an integer value) in the table or index 
-** opened by cursor P1 in register P2
-*/
-#ifndef SQLITE_OMIT_BTREECOUNT
-case OP_Count: {         /* out2 */
-  i64 nEntry;
-  BtCursor *pCrsr;
-
-  assert( p->apCsr[pOp->p1]->eCurType==CURTYPE_BTREE );
-  pCrsr = p->apCsr[pOp->p1]->uc.pCursor;
-  assert( pCrsr );
-  nEntry = 0;  /* Not needed.  Only used to silence a warning. */
-  rc = tdsqlite3BtreeCount(db, pCrsr, &nEntry);
-  if( rc ) goto abort_due_to_error;
-  pOut = out2Prerelease(p, pOp);
-  pOut->u.i = nEntry;
-  goto check_for_interrupt;
-}
-#endif
-
-/* Opcode: Savepoint P1 * * P4 *
-**
-** Open, release or rollback the savepoint named by parameter P4, depending
-** on the value of P1. To open a new savepoint set P1==0 (SAVEPOINT_BEGIN).
-** To release (commit) an existing savepoint set P1==1 (SAVEPOINT_RELEASE).
-** To rollback an existing savepoint set P1==2 (SAVEPOINT_ROLLBACK).
-*/
-case OP_Savepoint: {
-  int p1;                         /* Value of P1 operand */
-  char *zName;                    /* Name of savepoint */
-  int nName;
-  Savepoint *pNew;
-  Savepoint *pSavepoint;
-  Savepoint *pTmp;
-  int iSavepoint;
-  int ii;
-
-  p1 = pOp->p1;
-  zName = pOp->p4.z;
-
-  /* Assert that the p1 parameter is valid. Also that if there is no open
-  ** transaction, then there cannot be any savepoints. 
-  */
-  assert( db->pSavepoint==0 || db->autoCommit==0 );
-  assert( p1==SAVEPOINT_BEGIN||p1==SAVEPOINT_RELEASE||p1==SAVEPOINT_ROLLBACK );
-  assert( db->pSavepoint || db->isTransactionSavepoint==0 );
-  assert( checkSavepointCount(db) );
-  assert( p->bIsReader );
-
-  if( p1==SAVEPOINT_BEGIN ){
-    if( db->nVdbeWrite>0 ){
-      /* A new savepoint cannot be created if there are active write 
-      ** statements (i.e. open read/write incremental blob handles).
-      */
-      tdsqlite3VdbeError(p, "cannot open savepoint - SQL statements in progress");
-      rc = SQLITE_BUSY;
-    }else{
-      nName = tdsqlite3Strlen30(zName);
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-      /* This call is Ok even if this savepoint is actually a transaction
-      ** savepoint (and therefore should not prompt xSavepoint()) callbacks.
-      ** If this is a transaction savepoint being opened, it is guaranteed
-      ** that the db->aVTrans[] array is empty.  */
-      assert( db->autoCommit==0 || db->nVTrans==0 );
-      rc = tdsqlite3VtabSavepoint(db, SAVEPOINT_BEGIN,
-                                db->nStatement+db->nSavepoint);
-      if( rc!=SQLITE_OK ) goto abort_due_to_error;
-#endif
-
-      /* Create a new savepoint structure. */
-      pNew = tdsqlite3DbMallocRawNN(db, sizeof(Savepoint)+nName+1);
-      if( pNew ){
-        pNew->zName = (char *)&pNew[1];
-        memcpy(pNew->zName, zName, nName+1);
-    
-        /* If there is no open transaction, then mark this as a special
-        ** "transaction savepoint". */
-        if( db->autoCommit ){
-          db->autoCommit = 0;
-          db->isTransactionSavepoint = 1;
-        }else{
-          db->nSavepoint++;
-        }
-
-        /* Link the new savepoint into the database handle's list. */
-        pNew->pNext = db->pSavepoint;
-        db->pSavepoint = pNew;
-        pNew->nDeferredCons = db->nDeferredCons;
-        pNew->nDeferredImmCons = db->nDeferredImmCons;
-      }
-    }
-  }else{
-    assert( p1==SAVEPOINT_RELEASE || p1==SAVEPOINT_ROLLBACK );
-    iSavepoint = 0;
-
-    /* Find the named savepoint. If there is no such savepoint, then an
-    ** an error is returned to the user.  */
-    for(
-      pSavepoint = db->pSavepoint; 
-      pSavepoint && tdsqlite3StrICmp(pSavepoint->zName, zName);
-      pSavepoint = pSavepoint->pNext
-    ){
-      iSavepoint++;
-    }
-    if( !pSavepoint ){
-      tdsqlite3VdbeError(p, "no such savepoint: %s", zName);
-      rc = SQLITE_ERROR;
-    }else if( db->nVdbeWrite>0 && p1==SAVEPOINT_RELEASE ){
-      /* It is not possible to release (commit) a savepoint if there are 
-      ** active write statements.
-      */
-      tdsqlite3VdbeError(p, "cannot release savepoint - "
-                          "SQL statements in progress");
-      rc = SQLITE_BUSY;
-    }else{
-
-      /* Determine whether or not this is a transaction savepoint. If so,
-      ** and this is a RELEASE command, then the current transaction 
-      ** is committed. 
-      */
-      int isTransaction = pSavepoint->pNext==0 && db->isTransactionSavepoint;
-      if( isTransaction && p1==SAVEPOINT_RELEASE ){
-        if( (rc = tdsqlite3VdbeCheckFk(p, 1))!=SQLITE_OK ){
-          goto vdbe_return;
-        }
-        db->autoCommit = 1;
-        if( tdsqlite3VdbeHalt(p)==SQLITE_BUSY ){
-          p->pc = (int)(pOp - aOp);
-          db->autoCommit = 0;
-          p->rc = rc = SQLITE_BUSY;
-          goto vdbe_return;
-        }
-        rc = p->rc;
-        if( rc ){
-          db->autoCommit = 0;
-        }else{
-          db->isTransactionSavepoint = 0;
-        }
-      }else{
-        int isSchemaChange;
-        iSavepoint = db->nSavepoint - iSavepoint - 1;
-        if( p1==SAVEPOINT_ROLLBACK ){
-          isSchemaChange = (db->mDbFlags & DBFLAG_SchemaChange)!=0;
-          for(ii=0; ii<db->nDb; ii++){
-            rc = tdsqlite3BtreeTripAllCursors(db->aDb[ii].pBt,
-                                       SQLITE_ABORT_ROLLBACK,
-                                       isSchemaChange==0);
-            if( rc!=SQLITE_OK ) goto abort_due_to_error;
-          }
-        }else{
-          assert( p1==SAVEPOINT_RELEASE );
-          isSchemaChange = 0;
-        }
-        for(ii=0; ii<db->nDb; ii++){
-          rc = tdsqlite3BtreeSavepoint(db->aDb[ii].pBt, p1, iSavepoint);
-          if( rc!=SQLITE_OK ){
-            goto abort_due_to_error;
-          }
-        }
-        if( isSchemaChange ){
-          tdsqlite3ExpirePreparedStatements(db, 0);
-          tdsqlite3ResetAllSchemasOfConnection(db);
-          db->mDbFlags |= DBFLAG_SchemaChange;
-        }
-      }
-      if( rc ) goto abort_due_to_error;
-  
-      /* Regardless of whether this is a RELEASE or ROLLBACK, destroy all 
-      ** savepoints nested inside of the savepoint being operated on. */
-      while( db->pSavepoint!=pSavepoint ){
-        pTmp = db->pSavepoint;
-        db->pSavepoint = pTmp->pNext;
-        tdsqlite3DbFree(db, pTmp);
-        db->nSavepoint--;
-      }
-
-      /* If it is a RELEASE, then destroy the savepoint being operated on 
-      ** too. If it is a ROLLBACK TO, then set the number of deferred 
-      ** constraint violations present in the database to the value stored
-      ** when the savepoint was created.  */
-      if( p1==SAVEPOINT_RELEASE ){
-        assert( pSavepoint==db->pSavepoint );
-        db->pSavepoint = pSavepoint->pNext;
-        tdsqlite3DbFree(db, pSavepoint);
-        if( !isTransaction ){
-          db->nSavepoint--;
-        }
-      }else{
-        assert( p1==SAVEPOINT_ROLLBACK );
-        db->nDeferredCons = pSavepoint->nDeferredCons;
-        db->nDeferredImmCons = pSavepoint->nDeferredImmCons;
-      }
-
-      if( !isTransaction || p1==SAVEPOINT_ROLLBACK ){
-        rc = tdsqlite3VtabSavepoint(db, p1, iSavepoint);
-        if( rc!=SQLITE_OK ) goto abort_due_to_error;
-      }
-    }
-  }
-  if( rc ) goto abort_due_to_error;
-
-  break;
-}
-
-/* Opcode: AutoCommit P1 P2 * * *
-**
-** Set the database auto-commit flag to P1 (1 or 0). If P2 is true, roll
-** back any currently active btree transactions. If there are any active
-** VMs (apart from this one), then a ROLLBACK fails.  A COMMIT fails if
-** there are active writing VMs or active VMs that use shared cache.
-**
-** This instruction causes the VM to halt.
-*/
-case OP_AutoCommit: {
-  int desiredAutoCommit;
-  int iRollback;
-
-  desiredAutoCommit = pOp->p1;
-  iRollback = pOp->p2;
-  assert( desiredAutoCommit==1 || desiredAutoCommit==0 );
-  assert( desiredAutoCommit==1 || iRollback==0 );
-  assert( db->nVdbeActive>0 );  /* At least this one VM is active */
-  assert( p->bIsReader );
-
-  if( desiredAutoCommit!=db->autoCommit ){
-    if( iRollback ){
-      assert( desiredAutoCommit==1 );
-      tdsqlite3RollbackAll(db, SQLITE_ABORT_ROLLBACK);
-      db->autoCommit = 1;
-    }else if( desiredAutoCommit && db->nVdbeWrite>0 ){
-      /* If this instruction implements a COMMIT and other VMs are writing
-      ** return an error indicating that the other VMs must complete first. 
-      */
-      tdsqlite3VdbeError(p, "cannot commit transaction - "
-                          "SQL statements in progress");
-      rc = SQLITE_BUSY;
-      goto abort_due_to_error;
-    }else if( (rc = tdsqlite3VdbeCheckFk(p, 1))!=SQLITE_OK ){
-      goto vdbe_return;
-    }else{
-      db->autoCommit = (u8)desiredAutoCommit;
-    }
-    if( tdsqlite3VdbeHalt(p)==SQLITE_BUSY ){
-      p->pc = (int)(pOp - aOp);
-      db->autoCommit = (u8)(1-desiredAutoCommit);
-      p->rc = rc = SQLITE_BUSY;
-      goto vdbe_return;
-    }
-    tdsqlite3CloseSavepoints(db);
-    if( p->rc==SQLITE_OK ){
-      rc = SQLITE_DONE;
-    }else{
-      rc = SQLITE_ERROR;
-    }
-    goto vdbe_return;
-  }else{
-    tdsqlite3VdbeError(p,
-        (!desiredAutoCommit)?"cannot start a transaction within a transaction":(
-        (iRollback)?"cannot rollback - no transaction is active":
-                   "cannot commit - no transaction is active"));
-         
-    rc = SQLITE_ERROR;
-    goto abort_due_to_error;
-  }
-  /*NOTREACHED*/ assert(0);
-}
-
-/* Opcode: Transaction P1 P2 P3 P4 P5
-**
-** Begin a transaction on database P1 if a transaction is not already
-** active.
-** If P2 is non-zero, then a write-transaction is started, or if a 
-** read-transaction is already active, it is upgraded to a write-transaction.
-** If P2 is zero, then a read-transaction is started.
-**
-** P1 is the index of the database file on which the transaction is
-** started.  Index 0 is the main database file and index 1 is the
-** file used for temporary tables.  Indices of 2 or more are used for
-** attached databases.
-**
-** If a write-transaction is started and the Vdbe.usesStmtJournal flag is
-** true (this flag is set if the Vdbe may modify more than one row and may
-** throw an ABORT exception), a statement transaction may also be opened.
-** More specifically, a statement transaction is opened iff the database
-** connection is currently not in autocommit mode, or if there are other
-** active statements. A statement transaction allows the changes made by this
-** VDBE to be rolled back after an error without having to roll back the
-** entire transaction. If no error is encountered, the statement transaction
-** will automatically commit when the VDBE halts.
-**
-** If P5!=0 then this opcode also checks the schema cookie against P3
-** and the schema generation counter against P4.
-** The cookie changes its value whenever the database schema changes.
-** This operation is used to detect when that the cookie has changed
-** and that the current process needs to reread the schema.  If the schema
-** cookie in P3 differs from the schema cookie in the database header or
-** if the schema generation counter in P4 differs from the current
-** generation counter, then an SQLITE_SCHEMA error is raised and execution
-** halts.  The tdsqlite3_step() wrapper function might then reprepare the
-** statement and rerun it from the beginning.
-*/
-case OP_Transaction: {
-  Btree *pBt;
-  int iMeta = 0;
-
-  assert( p->bIsReader );
-  assert( p->readOnly==0 || pOp->p2==0 );
-  assert( pOp->p1>=0 && pOp->p1<db->nDb );
-  assert( DbMaskTest(p->btreeMask, pOp->p1) );
-  if( pOp->p2 && (db->flags & SQLITE_QueryOnly)!=0 ){
-    rc = SQLITE_READONLY;
-    goto abort_due_to_error;
-  }
-  pBt = db->aDb[pOp->p1].pBt;
-
-  if( pBt ){
-    rc = tdsqlite3BtreeBeginTrans(pBt, pOp->p2, &iMeta);
-    testcase( rc==SQLITE_BUSY_SNAPSHOT );
-    testcase( rc==SQLITE_BUSY_RECOVERY );
-    if( rc!=SQLITE_OK ){
-      if( (rc&0xff)==SQLITE_BUSY ){
-        p->pc = (int)(pOp - aOp);
-        p->rc = rc;
-        goto vdbe_return;
-      }
-      goto abort_due_to_error;
-    }
-
-    if( p->usesStmtJournal
-     && pOp->p2
-     && (db->autoCommit==0 || db->nVdbeRead>1) 
-    ){
-      assert( tdsqlite3BtreeIsInTrans(pBt) );
-      if( p->iStatement==0 ){
-        assert( db->nStatement>=0 && db->nSavepoint>=0 );
-        db->nStatement++; 
-        p->iStatement = db->nSavepoint + db->nStatement;
-      }
-
-      rc = tdsqlite3VtabSavepoint(db, SAVEPOINT_BEGIN, p->iStatement-1);
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3BtreeBeginStmt(pBt, p->iStatement);
-      }
-
-      /* Store the current value of the database handles deferred constraint
-      ** counter. If the statement transaction needs to be rolled back,
-      ** the value of this counter needs to be restored too.  */
-      p->nStmtDefCons = db->nDeferredCons;
-      p->nStmtDefImmCons = db->nDeferredImmCons;
-    }
-  }
-  assert( pOp->p5==0 || pOp->p4type==P4_INT32 );
-  if( pOp->p5
-   && (iMeta!=pOp->p3
-      || db->aDb[pOp->p1].pSchema->iGeneration!=pOp->p4.i)
-  ){
-    /*
-    ** IMPLEMENTATION-OF: R-03189-51135 As each SQL statement runs, the schema
-    ** version is checked to ensure that the schema has not changed since the
-    ** SQL statement was prepared.
-    */
-    tdsqlite3DbFree(db, p->zErrMsg);
-    p->zErrMsg = tdsqlite3DbStrDup(db, "database schema has changed");
-    /* If the schema-cookie from the database file matches the cookie 
-    ** stored with the in-memory representation of the schema, do
-    ** not reload the schema from the database file.
-    **
-    ** If virtual-tables are in use, this is not just an optimization.
-    ** Often, v-tables store their data in other SQLite tables, which
-    ** are queried from within xNext() and other v-table methods using
-    ** prepared queries. If such a query is out-of-date, we do not want to
-    ** discard the database schema, as the user code implementing the
-    ** v-table would have to be ready for the tdsqlite3_vtab structure itself
-    ** to be invalidated whenever tdsqlite3_step() is called from within 
-    ** a v-table method.
-    */
-    if( db->aDb[pOp->p1].pSchema->schema_cookie!=iMeta ){
-      tdsqlite3ResetOneSchema(db, pOp->p1);
-    }
-    p->expired = 1;
-    rc = SQLITE_SCHEMA;
-  }
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-
-/* Opcode: ReadCookie P1 P2 P3 * *
-**
-** Read cookie number P3 from database P1 and write it into register P2.
-** P3==1 is the schema version.  P3==2 is the database format.
-** P3==3 is the recommended pager cache size, and so forth.  P1==0 is
-** the main database file and P1==1 is the database file used to store
-** temporary tables.
-**
-** There must be a read-lock on the database (either a transaction
-** must be started or there must be an open cursor) before
-** executing this instruction.
-*/
-case OP_ReadCookie: {               /* out2 */
-  int iMeta;
-  int iDb;
-  int iCookie;
-
-  assert( p->bIsReader );
-  iDb = pOp->p1;
-  iCookie = pOp->p3;
-  assert( pOp->p3<SQLITE_N_BTREE_META );
-  assert( iDb>=0 && iDb<db->nDb );
-  assert( db->aDb[iDb].pBt!=0 );
-  assert( DbMaskTest(p->btreeMask, iDb) );
-
-  tdsqlite3BtreeGetMeta(db->aDb[iDb].pBt, iCookie, (u32 *)&iMeta);
-  pOut = out2Prerelease(p, pOp);
-  pOut->u.i = iMeta;
-  break;
-}
-
-/* Opcode: SetCookie P1 P2 P3 * *
-**
-** Write the integer value P3 into cookie number P2 of database P1.
-** P2==1 is the schema version.  P2==2 is the database format.
-** P2==3 is the recommended pager cache 
-** size, and so forth.  P1==0 is the main database file and P1==1 is the 
-** database file used to store temporary tables.
-**
-** A transaction must be started before executing this opcode.
-*/
-case OP_SetCookie: {
-  Db *pDb;
-
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  assert( pOp->p2<SQLITE_N_BTREE_META );
-  assert( pOp->p1>=0 && pOp->p1<db->nDb );
-  assert( DbMaskTest(p->btreeMask, pOp->p1) );
-  assert( p->readOnly==0 );
-  pDb = &db->aDb[pOp->p1];
-  assert( pDb->pBt!=0 );
-  assert( tdsqlite3SchemaMutexHeld(db, pOp->p1, 0) );
-  /* See note about index shifting on OP_ReadCookie */
-  rc = tdsqlite3BtreeUpdateMeta(pDb->pBt, pOp->p2, pOp->p3);
-  if( pOp->p2==BTREE_SCHEMA_VERSION ){
-    /* When the schema cookie changes, record the new cookie internally */
-    pDb->pSchema->schema_cookie = pOp->p3;
-    db->mDbFlags |= DBFLAG_SchemaChange;
-  }else if( pOp->p2==BTREE_FILE_FORMAT ){
-    /* Record changes in the file format */
-    pDb->pSchema->file_format = pOp->p3;
-  }
-  if( pOp->p1==1 ){
-    /* Invalidate all prepared statements whenever the TEMP database
-    ** schema is changed.  Ticket #1644 */
-    tdsqlite3ExpirePreparedStatements(db, 0);
-    p->expired = 0;
-  }
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-
-/* Opcode: OpenRead P1 P2 P3 P4 P5
-** Synopsis: root=P2 iDb=P3
-**
-** Open a read-only cursor for the database table whose root page is
-** P2 in a database file.  The database file is determined by P3. 
-** P3==0 means the main database, P3==1 means the database used for 
-** temporary tables, and P3>1 means used the corresponding attached
-** database.  Give the new cursor an identifier of P1.  The P1
-** values need not be contiguous but all P1 values should be small integers.
-** It is an error for P1 to be negative.
-**
-** Allowed P5 bits:
-** <ul>
-** <li>  <b>0x02 OPFLAG_SEEKEQ</b>: This cursor will only be used for
-**       equality lookups (implemented as a pair of opcodes OP_SeekGE/OP_IdxGT
-**       of OP_SeekLE/OP_IdxGT)
-** </ul>
-**
-** The P4 value may be either an integer (P4_INT32) or a pointer to
-** a KeyInfo structure (P4_KEYINFO). If it is a pointer to a KeyInfo 
-** object, then table being opened must be an [index b-tree] where the
-** KeyInfo object defines the content and collating 
-** sequence of that index b-tree. Otherwise, if P4 is an integer 
-** value, then the table being opened must be a [table b-tree] with a
-** number of columns no less than the value of P4.
-**
-** See also: OpenWrite, ReopenIdx
-*/
-/* Opcode: ReopenIdx P1 P2 P3 P4 P5
-** Synopsis: root=P2 iDb=P3
-**
-** The ReopenIdx opcode works like OP_OpenRead except that it first
-** checks to see if the cursor on P1 is already open on the same
-** b-tree and if it is this opcode becomes a no-op.  In other words,
-** if the cursor is already open, do not reopen it.
-**
-** The ReopenIdx opcode may only be used with P5==0 or P5==OPFLAG_SEEKEQ
-** and with P4 being a P4_KEYINFO object.  Furthermore, the P3 value must
-** be the same as every other ReopenIdx or OpenRead for the same cursor
-** number.
-**
-** Allowed P5 bits:
-** <ul>
-** <li>  <b>0x02 OPFLAG_SEEKEQ</b>: This cursor will only be used for
-**       equality lookups (implemented as a pair of opcodes OP_SeekGE/OP_IdxGT
-**       of OP_SeekLE/OP_IdxGT)
-** </ul>
-**
-** See also: OP_OpenRead, OP_OpenWrite
-*/
-/* Opcode: OpenWrite P1 P2 P3 P4 P5
-** Synopsis: root=P2 iDb=P3
-**
-** Open a read/write cursor named P1 on the table or index whose root
-** page is P2 (or whose root page is held in register P2 if the
-** OPFLAG_P2ISREG bit is set in P5 - see below).
-**
-** The P4 value may be either an integer (P4_INT32) or a pointer to
-** a KeyInfo structure (P4_KEYINFO). If it is a pointer to a KeyInfo 
-** object, then table being opened must be an [index b-tree] where the
-** KeyInfo object defines the content and collating 
-** sequence of that index b-tree. Otherwise, if P4 is an integer 
-** value, then the table being opened must be a [table b-tree] with a
-** number of columns no less than the value of P4.
-**
-** Allowed P5 bits:
-** <ul>
-** <li>  <b>0x02 OPFLAG_SEEKEQ</b>: This cursor will only be used for
-**       equality lookups (implemented as a pair of opcodes OP_SeekGE/OP_IdxGT
-**       of OP_SeekLE/OP_IdxGT)
-** <li>  <b>0x08 OPFLAG_FORDELETE</b>: This cursor is used only to seek
-**       and subsequently delete entries in an index btree.  This is a
-**       hint to the storage engine that the storage engine is allowed to
-**       ignore.  The hint is not used by the official SQLite b*tree storage
-**       engine, but is used by COMDB2.
-** <li>  <b>0x10 OPFLAG_P2ISREG</b>: Use the content of register P2
-**       as the root page, not the value of P2 itself.
-** </ul>
-**
-** This instruction works like OpenRead except that it opens the cursor
-** in read/write mode.
-**
-** See also: OP_OpenRead, OP_ReopenIdx
-*/
-case OP_ReopenIdx: {
-  int nField;
-  KeyInfo *pKeyInfo;
-  int p2;
-  int iDb;
-  int wrFlag;
-  Btree *pX;
-  VdbeCursor *pCur;
-  Db *pDb;
-
-  assert( pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ );
-  assert( pOp->p4type==P4_KEYINFO );
-  pCur = p->apCsr[pOp->p1];
-  if( pCur && pCur->pgnoRoot==(u32)pOp->p2 ){
-    assert( pCur->iDb==pOp->p3 );      /* Guaranteed by the code generator */
-    goto open_cursor_set_hints;
-  }
-  /* If the cursor is not currently open or is open on a different
-  ** index, then fall through into OP_OpenRead to force a reopen */
-case OP_OpenRead:
-case OP_OpenWrite:
-
-  assert( pOp->opcode==OP_OpenWrite || pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ );
-  assert( p->bIsReader );
-  assert( pOp->opcode==OP_OpenRead || pOp->opcode==OP_ReopenIdx
-          || p->readOnly==0 );
-
-  if( p->expired==1 ){
-    rc = SQLITE_ABORT_ROLLBACK;
-    goto abort_due_to_error;
-  }
-
-  nField = 0;
-  pKeyInfo = 0;
-  p2 = pOp->p2;
-  iDb = pOp->p3;
-  assert( iDb>=0 && iDb<db->nDb );
-  assert( DbMaskTest(p->btreeMask, iDb) );
-  pDb = &db->aDb[iDb];
-  pX = pDb->pBt;
-  assert( pX!=0 );
-  if( pOp->opcode==OP_OpenWrite ){
-    assert( OPFLAG_FORDELETE==BTREE_FORDELETE );
-    wrFlag = BTREE_WRCSR | (pOp->p5 & OPFLAG_FORDELETE);
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    if( pDb->pSchema->file_format < p->minWriteFileFormat ){
-      p->minWriteFileFormat = pDb->pSchema->file_format;
-    }
-  }else{
-    wrFlag = 0;
-  }
-  if( pOp->p5 & OPFLAG_P2ISREG ){
-    assert( p2>0 );
-    assert( p2<=(p->nMem+1 - p->nCursor) );
-    assert( pOp->opcode==OP_OpenWrite );
-    pIn2 = &aMem[p2];
-    assert( memIsValid(pIn2) );
-    assert( (pIn2->flags & MEM_Int)!=0 );
-    tdsqlite3VdbeMemIntegerify(pIn2);
-    p2 = (int)pIn2->u.i;
-    /* The p2 value always comes from a prior OP_CreateBtree opcode and
-    ** that opcode will always set the p2 value to 2 or more or else fail.
-    ** If there were a failure, the prepared statement would have halted
-    ** before reaching this instruction. */
-    assert( p2>=2 );
-  }
-  if( pOp->p4type==P4_KEYINFO ){
-    pKeyInfo = pOp->p4.pKeyInfo;
-    assert( pKeyInfo->enc==ENC(db) );
-    assert( pKeyInfo->db==db );
-    nField = pKeyInfo->nAllField;
-  }else if( pOp->p4type==P4_INT32 ){
-    nField = pOp->p4.i;
-  }
-  assert( pOp->p1>=0 );
-  assert( nField>=0 );
-  testcase( nField==0 );  /* Table with INTEGER PRIMARY KEY and nothing else */
-  pCur = allocateCursor(p, pOp->p1, nField, iDb, CURTYPE_BTREE);
-  if( pCur==0 ) goto no_mem;
-  pCur->nullRow = 1;
-  pCur->isOrdered = 1;
-  pCur->pgnoRoot = p2;
-#ifdef SQLITE_DEBUG
-  pCur->wrFlag = wrFlag;
-#endif
-  rc = tdsqlite3BtreeCursor(pX, p2, wrFlag, pKeyInfo, pCur->uc.pCursor);
-  pCur->pKeyInfo = pKeyInfo;
-  /* Set the VdbeCursor.isTable variable. Previous versions of
-  ** SQLite used to check if the root-page flags were sane at this point
-  ** and report database corruption if they were not, but this check has
-  ** since moved into the btree layer.  */  
-  pCur->isTable = pOp->p4type!=P4_KEYINFO;
-
-open_cursor_set_hints:
-  assert( OPFLAG_BULKCSR==BTREE_BULKLOAD );
-  assert( OPFLAG_SEEKEQ==BTREE_SEEK_EQ );
-  testcase( pOp->p5 & OPFLAG_BULKCSR );
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-  testcase( pOp->p2 & OPFLAG_SEEKEQ );
-#endif
-  tdsqlite3BtreeCursorHintFlags(pCur->uc.pCursor,
-                               (pOp->p5 & (OPFLAG_BULKCSR|OPFLAG_SEEKEQ)));
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-
-/* Opcode: OpenDup P1 P2 * * *
-**
-** Open a new cursor P1 that points to the same ephemeral table as
-** cursor P2.  The P2 cursor must have been opened by a prior OP_OpenEphemeral
-** opcode.  Only ephemeral cursors may be duplicated.
-**
-** Duplicate ephemeral cursors are used for self-joins of materialized views.
-*/
-case OP_OpenDup: {
-  VdbeCursor *pOrig;    /* The original cursor to be duplicated */
-  VdbeCursor *pCx;      /* The new cursor */
-
-  pOrig = p->apCsr[pOp->p2];
-  assert( pOrig );
-  assert( pOrig->pBtx!=0 );  /* Only ephemeral cursors can be duplicated */
-
-  pCx = allocateCursor(p, pOp->p1, pOrig->nField, -1, CURTYPE_BTREE);
-  if( pCx==0 ) goto no_mem;
-  pCx->nullRow = 1;
-  pCx->isEphemeral = 1;
-  pCx->pKeyInfo = pOrig->pKeyInfo;
-  pCx->isTable = pOrig->isTable;
-  pCx->pgnoRoot = pOrig->pgnoRoot;
-  pCx->isOrdered = pOrig->isOrdered;
-  rc = tdsqlite3BtreeCursor(pOrig->pBtx, pCx->pgnoRoot, BTREE_WRCSR,
-                          pCx->pKeyInfo, pCx->uc.pCursor);
-  /* The tdsqlite3BtreeCursor() routine can only fail for the first cursor
-  ** opened for a database.  Since there is already an open cursor when this
-  ** opcode is run, the tdsqlite3BtreeCursor() cannot fail */
-  assert( rc==SQLITE_OK );
-  break;
-}
-
-
-/* Opcode: OpenEphemeral P1 P2 * P4 P5
-** Synopsis: nColumn=P2
-**
-** Open a new cursor P1 to a transient table.
-** The cursor is always opened read/write even if 
-** the main database is read-only.  The ephemeral
-** table is deleted automatically when the cursor is closed.
-**
-** If the cursor P1 is already opened on an ephemeral table, the table
-** is cleared (all content is erased).
-**
-** P2 is the number of columns in the ephemeral table.
-** The cursor points to a BTree table if P4==0 and to a BTree index
-** if P4 is not 0.  If P4 is not NULL, it points to a KeyInfo structure
-** that defines the format of keys in the index.
-**
-** The P5 parameter can be a mask of the BTREE_* flags defined
-** in btree.h.  These flags control aspects of the operation of
-** the btree.  The BTREE_OMIT_JOURNAL and BTREE_SINGLE flags are
-** added automatically.
-*/
-/* Opcode: OpenAutoindex P1 P2 * P4 *
-** Synopsis: nColumn=P2
-**
-** This opcode works the same as OP_OpenEphemeral.  It has a
-** different name to distinguish its use.  Tables created using
-** by this opcode will be used for automatically created transient
-** indices in joins.
-*/
-case OP_OpenAutoindex: 
-case OP_OpenEphemeral: {
-  VdbeCursor *pCx;
-  KeyInfo *pKeyInfo;
-
-  static const int vfsFlags = 
-      SQLITE_OPEN_READWRITE |
-      SQLITE_OPEN_CREATE |
-      SQLITE_OPEN_EXCLUSIVE |
-      SQLITE_OPEN_DELETEONCLOSE |
-      SQLITE_OPEN_TRANSIENT_DB;
-  assert( pOp->p1>=0 );
-  assert( pOp->p2>=0 );
-  pCx = p->apCsr[pOp->p1];
-  if( pCx && pCx->pBtx ){
-    /* If the ephermeral table is already open, erase all existing content
-    ** so that the table is empty again, rather than creating a new table. */
-    assert( pCx->isEphemeral );
-    pCx->seqCount = 0;
-    pCx->cacheStatus = CACHE_STALE;
-    rc = tdsqlite3BtreeClearTable(pCx->pBtx, pCx->pgnoRoot, 0);
-  }else{
-    pCx = allocateCursor(p, pOp->p1, pOp->p2, -1, CURTYPE_BTREE);
-    if( pCx==0 ) goto no_mem;
-    pCx->isEphemeral = 1;
-    rc = tdsqlite3BtreeOpen(db->pVfs, 0, db, &pCx->pBtx, 
-                          BTREE_OMIT_JOURNAL | BTREE_SINGLE | pOp->p5,
-                          vfsFlags);
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3BtreeBeginTrans(pCx->pBtx, 1, 0);
-    }
-    if( rc==SQLITE_OK ){
-      /* If a transient index is required, create it by calling
-      ** tdsqlite3BtreeCreateTable() with the BTREE_BLOBKEY flag before
-      ** opening it. If a transient table is required, just use the
-      ** automatically created table with root-page 1 (an BLOB_INTKEY table).
-      */
-      if( (pCx->pKeyInfo = pKeyInfo = pOp->p4.pKeyInfo)!=0 ){
-        assert( pOp->p4type==P4_KEYINFO );
-        rc = tdsqlite3BtreeCreateTable(pCx->pBtx, (int*)&pCx->pgnoRoot,
-                                     BTREE_BLOBKEY | pOp->p5); 
-        if( rc==SQLITE_OK ){
-          assert( pCx->pgnoRoot==MASTER_ROOT+1 );
-          assert( pKeyInfo->db==db );
-          assert( pKeyInfo->enc==ENC(db) );
-          rc = tdsqlite3BtreeCursor(pCx->pBtx, pCx->pgnoRoot, BTREE_WRCSR,
-                                  pKeyInfo, pCx->uc.pCursor);
-        }
-        pCx->isTable = 0;
-      }else{
-        pCx->pgnoRoot = MASTER_ROOT;
-        rc = tdsqlite3BtreeCursor(pCx->pBtx, MASTER_ROOT, BTREE_WRCSR,
-                                0, pCx->uc.pCursor);
-        pCx->isTable = 1;
-      }
-    }
-    pCx->isOrdered = (pOp->p5!=BTREE_UNORDERED);
-  }
-  if( rc ) goto abort_due_to_error;
-  pCx->nullRow = 1;
-  break;
-}
-
-/* Opcode: SorterOpen P1 P2 P3 P4 *
-**
-** This opcode works like OP_OpenEphemeral except that it opens
-** a transient index that is specifically designed to sort large
-** tables using an external merge-sort algorithm.
-**
-** If argument P3 is non-zero, then it indicates that the sorter may
-** assume that a stable sort considering the first P3 fields of each
-** key is sufficient to produce the required results.
-*/
-case OP_SorterOpen: {
-  VdbeCursor *pCx;
-
-  assert( pOp->p1>=0 );
-  assert( pOp->p2>=0 );
-  pCx = allocateCursor(p, pOp->p1, pOp->p2, -1, CURTYPE_SORTER);
-  if( pCx==0 ) goto no_mem;
-  pCx->pKeyInfo = pOp->p4.pKeyInfo;
-  assert( pCx->pKeyInfo->db==db );
-  assert( pCx->pKeyInfo->enc==ENC(db) );
-  rc = tdsqlite3VdbeSorterInit(db, pOp->p3, pCx);
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-
-/* Opcode: SequenceTest P1 P2 * * *
-** Synopsis: if( cursor[P1].ctr++ ) pc = P2
-**
-** P1 is a sorter cursor. If the sequence counter is currently zero, jump
-** to P2. Regardless of whether or not the jump is taken, increment the
-** the sequence value.
-*/
-case OP_SequenceTest: {
-  VdbeCursor *pC;
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( isSorter(pC) );
-  if( (pC->seqCount++)==0 ){
-    goto jump_to_p2;
-  }
-  break;
-}
-
-/* Opcode: OpenPseudo P1 P2 P3 * *
-** Synopsis: P3 columns in r[P2]
-**
-** Open a new cursor that points to a fake table that contains a single
-** row of data.  The content of that one row is the content of memory
-** register P2.  In other words, cursor P1 becomes an alias for the 
-** MEM_Blob content contained in register P2.
-**
-** A pseudo-table created by this opcode is used to hold a single
-** row output from the sorter so that the row can be decomposed into
-** individual columns using the OP_Column opcode.  The OP_Column opcode
-** is the only cursor opcode that works with a pseudo-table.
-**
-** P3 is the number of fields in the records that will be stored by
-** the pseudo-table.
-*/
-case OP_OpenPseudo: {
-  VdbeCursor *pCx;
-
-  assert( pOp->p1>=0 );
-  assert( pOp->p3>=0 );
-  pCx = allocateCursor(p, pOp->p1, pOp->p3, -1, CURTYPE_PSEUDO);
-  if( pCx==0 ) goto no_mem;
-  pCx->nullRow = 1;
-  pCx->seekResult = pOp->p2;
-  pCx->isTable = 1;
-  /* Give this pseudo-cursor a fake BtCursor pointer so that pCx
-  ** can be safely passed to tdsqlite3VdbeCursorMoveto().  This avoids a test
-  ** for pCx->eCurType==CURTYPE_BTREE inside of tdsqlite3VdbeCursorMoveto()
-  ** which is a performance optimization */
-  pCx->uc.pCursor = tdsqlite3BtreeFakeValidCursor();
-  assert( pOp->p5==0 );
-  break;
-}
-
-/* Opcode: Close P1 * * * *
-**
-** Close a cursor previously opened as P1.  If P1 is not
-** currently open, this instruction is a no-op.
-*/
-case OP_Close: {
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  tdsqlite3VdbeFreeCursor(p, p->apCsr[pOp->p1]);
-  p->apCsr[pOp->p1] = 0;
-  break;
-}
-
-#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
-/* Opcode: ColumnsUsed P1 * * P4 *
-**
-** This opcode (which only exists if SQLite was compiled with
-** SQLITE_ENABLE_COLUMN_USED_MASK) identifies which columns of the
-** table or index for cursor P1 are used.  P4 is a 64-bit integer
-** (P4_INT64) in which the first 63 bits are one for each of the
-** first 63 columns of the table or index that are actually used
-** by the cursor.  The high-order bit is set if any column after
-** the 64th is used.
-*/
-case OP_ColumnsUsed: {
-  VdbeCursor *pC;
-  pC = p->apCsr[pOp->p1];
-  assert( pC->eCurType==CURTYPE_BTREE );
-  pC->maskUsed = *(u64*)pOp->p4.pI64;
-  break;
-}
-#endif
-
-/* Opcode: SeekGE P1 P2 P3 P4 *
-** Synopsis: key=r[P3@P4]
-**
-** If cursor P1 refers to an SQL table (B-Tree that uses integer keys), 
-** use the value in register P3 as the key.  If cursor P1 refers 
-** to an SQL index, then P3 is the first in an array of P4 registers 
-** that are used as an unpacked index key. 
-**
-** Reposition cursor P1 so that  it points to the smallest entry that 
-** is greater than or equal to the key value. If there are no records 
-** greater than or equal to the key and P2 is not zero, then jump to P2.
-**
-** If the cursor P1 was opened using the OPFLAG_SEEKEQ flag, then this
-** opcode will always land on a record that equally equals the key, or
-** else jump immediately to P2.  When the cursor is OPFLAG_SEEKEQ, this
-** opcode must be followed by an IdxLE opcode with the same arguments.
-** The IdxLE opcode will be skipped if this opcode succeeds, but the
-** IdxLE opcode will be used on subsequent loop iterations.
-**
-** This opcode leaves the cursor configured to move in forward order,
-** from the beginning toward the end.  In other words, the cursor is
-** configured to use Next, not Prev.
-**
-** See also: Found, NotFound, SeekLt, SeekGt, SeekLe
-*/
-/* Opcode: SeekGT P1 P2 P3 P4 *
-** Synopsis: key=r[P3@P4]
-**
-** If cursor P1 refers to an SQL table (B-Tree that uses integer keys), 
-** use the value in register P3 as a key. If cursor P1 refers 
-** to an SQL index, then P3 is the first in an array of P4 registers 
-** that are used as an unpacked index key. 
-**
-** Reposition cursor P1 so that  it points to the smallest entry that 
-** is greater than the key value. If there are no records greater than 
-** the key and P2 is not zero, then jump to P2.
-**
-** This opcode leaves the cursor configured to move in forward order,
-** from the beginning toward the end.  In other words, the cursor is
-** configured to use Next, not Prev.
-**
-** See also: Found, NotFound, SeekLt, SeekGe, SeekLe
-*/
-/* Opcode: SeekLT P1 P2 P3 P4 * 
-** Synopsis: key=r[P3@P4]
-**
-** If cursor P1 refers to an SQL table (B-Tree that uses integer keys), 
-** use the value in register P3 as a key. If cursor P1 refers 
-** to an SQL index, then P3 is the first in an array of P4 registers 
-** that are used as an unpacked index key. 
-**
-** Reposition cursor P1 so that  it points to the largest entry that 
-** is less than the key value. If there are no records less than 
-** the key and P2 is not zero, then jump to P2.
-**
-** This opcode leaves the cursor configured to move in reverse order,
-** from the end toward the beginning.  In other words, the cursor is
-** configured to use Prev, not Next.
-**
-** See also: Found, NotFound, SeekGt, SeekGe, SeekLe
-*/
-/* Opcode: SeekLE P1 P2 P3 P4 *
-** Synopsis: key=r[P3@P4]
-**
-** If cursor P1 refers to an SQL table (B-Tree that uses integer keys), 
-** use the value in register P3 as a key. If cursor P1 refers 
-** to an SQL index, then P3 is the first in an array of P4 registers 
-** that are used as an unpacked index key. 
-**
-** Reposition cursor P1 so that it points to the largest entry that 
-** is less than or equal to the key value. If there are no records 
-** less than or equal to the key and P2 is not zero, then jump to P2.
-**
-** This opcode leaves the cursor configured to move in reverse order,
-** from the end toward the beginning.  In other words, the cursor is
-** configured to use Prev, not Next.
-**
-** If the cursor P1 was opened using the OPFLAG_SEEKEQ flag, then this
-** opcode will always land on a record that equally equals the key, or
-** else jump immediately to P2.  When the cursor is OPFLAG_SEEKEQ, this
-** opcode must be followed by an IdxGE opcode with the same arguments.
-** The IdxGE opcode will be skipped if this opcode succeeds, but the
-** IdxGE opcode will be used on subsequent loop iterations.
-**
-** See also: Found, NotFound, SeekGt, SeekGe, SeekLt
-*/
-case OP_SeekLT:         /* jump, in3, group */
-case OP_SeekLE:         /* jump, in3, group */
-case OP_SeekGE:         /* jump, in3, group */
-case OP_SeekGT: {       /* jump, in3, group */
-  int res;           /* Comparison result */
-  int oc;            /* Opcode */
-  VdbeCursor *pC;    /* The cursor to seek */
-  UnpackedRecord r;  /* The key to seek for */
-  int nField;        /* Number of columns or fields in the key */
-  i64 iKey;          /* The rowid we are to seek to */
-  int eqOnly;        /* Only interested in == results */
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  assert( pOp->p2!=0 );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( OP_SeekLE == OP_SeekLT+1 );
-  assert( OP_SeekGE == OP_SeekLT+2 );
-  assert( OP_SeekGT == OP_SeekLT+3 );
-  assert( pC->isOrdered );
-  assert( pC->uc.pCursor!=0 );
-  oc = pOp->opcode;
-  eqOnly = 0;
-  pC->nullRow = 0;
-#ifdef SQLITE_DEBUG
-  pC->seekOp = pOp->opcode;
-#endif
-
-  pC->deferredMoveto = 0;
-  pC->cacheStatus = CACHE_STALE;
-  if( pC->isTable ){
-    u16 flags3, newType;
-    /* The BTREE_SEEK_EQ flag is only set on index cursors */
-    assert( tdsqlite3BtreeCursorHasHint(pC->uc.pCursor, BTREE_SEEK_EQ)==0
-              || CORRUPT_DB );
-
-    /* The input value in P3 might be of any type: integer, real, string,
-    ** blob, or NULL.  But it needs to be an integer before we can do
-    ** the seek, so convert it. */
-    pIn3 = &aMem[pOp->p3];
-    flags3 = pIn3->flags;
-    if( (flags3 & (MEM_Int|MEM_Real|MEM_IntReal|MEM_Str))==MEM_Str ){
-      applyNumericAffinity(pIn3, 0);
-    }
-    iKey = tdsqlite3VdbeIntValue(pIn3); /* Get the integer key value */
-    newType = pIn3->flags; /* Record the type after applying numeric affinity */
-    pIn3->flags = flags3;  /* But convert the type back to its original */
-
-    /* If the P3 value could not be converted into an integer without
-    ** loss of information, then special processing is required... */
-    if( (newType & (MEM_Int|MEM_IntReal))==0 ){
-      if( (newType & MEM_Real)==0 ){
-        if( (newType & MEM_Null) || oc>=OP_SeekGE ){
-          VdbeBranchTaken(1,2);
-          goto jump_to_p2;
-        }else{
-          rc = tdsqlite3BtreeLast(pC->uc.pCursor, &res);
-          if( rc!=SQLITE_OK ) goto abort_due_to_error;
-          goto seek_not_found;
-        }
-      }else
-
-      /* If the approximation iKey is larger than the actual real search
-      ** term, substitute >= for > and < for <=. e.g. if the search term
-      ** is 4.9 and the integer approximation 5:
-      **
-      **        (x >  4.9)    ->     (x >= 5)
-      **        (x <= 4.9)    ->     (x <  5)
-      */
-      if( pIn3->u.r<(double)iKey ){
-        assert( OP_SeekGE==(OP_SeekGT-1) );
-        assert( OP_SeekLT==(OP_SeekLE-1) );
-        assert( (OP_SeekLE & 0x0001)==(OP_SeekGT & 0x0001) );
-        if( (oc & 0x0001)==(OP_SeekGT & 0x0001) ) oc--;
-      }
-
-      /* If the approximation iKey is smaller than the actual real search
-      ** term, substitute <= for < and > for >=.  */
-      else if( pIn3->u.r>(double)iKey ){
-        assert( OP_SeekLE==(OP_SeekLT+1) );
-        assert( OP_SeekGT==(OP_SeekGE+1) );
-        assert( (OP_SeekLT & 0x0001)==(OP_SeekGE & 0x0001) );
-        if( (oc & 0x0001)==(OP_SeekLT & 0x0001) ) oc++;
-      }
-    }
-    rc = tdsqlite3BtreeMovetoUnpacked(pC->uc.pCursor, 0, (u64)iKey, 0, &res);
-    pC->movetoTarget = iKey;  /* Used by OP_Delete */
-    if( rc!=SQLITE_OK ){
-      goto abort_due_to_error;
-    }
-  }else{
-    /* For a cursor with the BTREE_SEEK_EQ hint, only the OP_SeekGE and
-    ** OP_SeekLE opcodes are allowed, and these must be immediately followed
-    ** by an OP_IdxGT or OP_IdxLT opcode, respectively, with the same key.
-    */
-    if( tdsqlite3BtreeCursorHasHint(pC->uc.pCursor, BTREE_SEEK_EQ) ){
-      eqOnly = 1;
-      assert( pOp->opcode==OP_SeekGE || pOp->opcode==OP_SeekLE );
-      assert( pOp[1].opcode==OP_IdxLT || pOp[1].opcode==OP_IdxGT );
-      assert( pOp[1].p1==pOp[0].p1 );
-      assert( pOp[1].p2==pOp[0].p2 );
-      assert( pOp[1].p3==pOp[0].p3 );
-      assert( pOp[1].p4.i==pOp[0].p4.i );
-    }
-
-    nField = pOp->p4.i;
-    assert( pOp->p4type==P4_INT32 );
-    assert( nField>0 );
-    r.pKeyInfo = pC->pKeyInfo;
-    r.nField = (u16)nField;
-
-    /* The next line of code computes as follows, only faster:
-    **   if( oc==OP_SeekGT || oc==OP_SeekLE ){
-    **     r.default_rc = -1;
-    **   }else{
-    **     r.default_rc = +1;
-    **   }
-    */
-    r.default_rc = ((1 & (oc - OP_SeekLT)) ? -1 : +1);
-    assert( oc!=OP_SeekGT || r.default_rc==-1 );
-    assert( oc!=OP_SeekLE || r.default_rc==-1 );
-    assert( oc!=OP_SeekGE || r.default_rc==+1 );
-    assert( oc!=OP_SeekLT || r.default_rc==+1 );
-
-    r.aMem = &aMem[pOp->p3];
-#ifdef SQLITE_DEBUG
-    { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
-#endif
-    r.eqSeen = 0;
-    rc = tdsqlite3BtreeMovetoUnpacked(pC->uc.pCursor, &r, 0, 0, &res);
-    if( rc!=SQLITE_OK ){
-      goto abort_due_to_error;
-    }
-    if( eqOnly && r.eqSeen==0 ){
-      assert( res!=0 );
-      goto seek_not_found;
-    }
-  }
-#ifdef SQLITE_TEST
-  tdsqlite3_search_count++;
-#endif
-  if( oc>=OP_SeekGE ){  assert( oc==OP_SeekGE || oc==OP_SeekGT );
-    if( res<0 || (res==0 && oc==OP_SeekGT) ){
-      res = 0;
-      rc = tdsqlite3BtreeNext(pC->uc.pCursor, 0);
-      if( rc!=SQLITE_OK ){
-        if( rc==SQLITE_DONE ){
-          rc = SQLITE_OK;
-          res = 1;
-        }else{
-          goto abort_due_to_error;
-        }
-      }
-    }else{
-      res = 0;
-    }
-  }else{
-    assert( oc==OP_SeekLT || oc==OP_SeekLE );
-    if( res>0 || (res==0 && oc==OP_SeekLT) ){
-      res = 0;
-      rc = tdsqlite3BtreePrevious(pC->uc.pCursor, 0);
-      if( rc!=SQLITE_OK ){
-        if( rc==SQLITE_DONE ){
-          rc = SQLITE_OK;
-          res = 1;
-        }else{
-          goto abort_due_to_error;
-        }
-      }
-    }else{
-      /* res might be negative because the table is empty.  Check to
-      ** see if this is the case.
-      */
-      res = tdsqlite3BtreeEof(pC->uc.pCursor);
-    }
-  }
-seek_not_found:
-  assert( pOp->p2>0 );
-  VdbeBranchTaken(res!=0,2);
-  if( res ){
-    goto jump_to_p2;
-  }else if( eqOnly ){
-    assert( pOp[1].opcode==OP_IdxLT || pOp[1].opcode==OP_IdxGT );
-    pOp++; /* Skip the OP_IdxLt or OP_IdxGT that follows */
-  }
-  break;
-}
-
-/* Opcode: SeekHit P1 P2 * * *
-** Synopsis: seekHit=P2
-**
-** Set the seekHit flag on cursor P1 to the value in P2.
-* The seekHit flag is used by the IfNoHope opcode.
-**
-** P1 must be a valid b-tree cursor.  P2 must be a boolean value,
-** either 0 or 1.
-*/
-case OP_SeekHit: {
-  VdbeCursor *pC;
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pOp->p2==0 || pOp->p2==1 );
-  pC->seekHit = pOp->p2 & 1;
-  break;
-}
-
-/* Opcode: IfNotOpen P1 P2 * * *
-** Synopsis: if( !csr[P1] ) goto P2
-**
-** If cursor P1 is not open, jump to instruction P2. Otherwise, fall through.
-*/
-case OP_IfNotOpen: {        /* jump */
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  VdbeBranchTaken(p->apCsr[pOp->p1]==0, 2);
-  if( !p->apCsr[pOp->p1] ){
-    goto jump_to_p2_and_check_for_interrupt;
-  }
-  break;
-}
-
-/* Opcode: Found P1 P2 P3 P4 *
-** Synopsis: key=r[P3@P4]
-**
-** If P4==0 then register P3 holds a blob constructed by MakeRecord.  If
-** P4>0 then register P3 is the first of P4 registers that form an unpacked
-** record.
-**
-** Cursor P1 is on an index btree.  If the record identified by P3 and P4
-** is a prefix of any entry in P1 then a jump is made to P2 and
-** P1 is left pointing at the matching entry.
-**
-** This operation leaves the cursor in a state where it can be
-** advanced in the forward direction.  The Next instruction will work,
-** but not the Prev instruction.
-**
-** See also: NotFound, NoConflict, NotExists. SeekGe
-*/
-/* Opcode: NotFound P1 P2 P3 P4 *
-** Synopsis: key=r[P3@P4]
-**
-** If P4==0 then register P3 holds a blob constructed by MakeRecord.  If
-** P4>0 then register P3 is the first of P4 registers that form an unpacked
-** record.
-** 
-** Cursor P1 is on an index btree.  If the record identified by P3 and P4
-** is not the prefix of any entry in P1 then a jump is made to P2.  If P1 
-** does contain an entry whose prefix matches the P3/P4 record then control
-** falls through to the next instruction and P1 is left pointing at the
-** matching entry.
-**
-** This operation leaves the cursor in a state where it cannot be
-** advanced in either direction.  In other words, the Next and Prev
-** opcodes do not work after this operation.
-**
-** See also: Found, NotExists, NoConflict, IfNoHope
-*/
-/* Opcode: IfNoHope P1 P2 P3 P4 *
-** Synopsis: key=r[P3@P4]
-**
-** Register P3 is the first of P4 registers that form an unpacked
-** record.
-**
-** Cursor P1 is on an index btree.  If the seekHit flag is set on P1, then
-** this opcode is a no-op.  But if the seekHit flag of P1 is clear, then
-** check to see if there is any entry in P1 that matches the
-** prefix identified by P3 and P4.  If no entry matches the prefix,
-** jump to P2.  Otherwise fall through.
-**
-** This opcode behaves like OP_NotFound if the seekHit
-** flag is clear and it behaves like OP_Noop if the seekHit flag is set.
-**
-** This opcode is used in IN clause processing for a multi-column key.
-** If an IN clause is attached to an element of the key other than the
-** left-most element, and if there are no matches on the most recent
-** seek over the whole key, then it might be that one of the key element
-** to the left is prohibiting a match, and hence there is "no hope" of
-** any match regardless of how many IN clause elements are checked.
-** In such a case, we abandon the IN clause search early, using this
-** opcode.  The opcode name comes from the fact that the
-** jump is taken if there is "no hope" of achieving a match.
-**
-** See also: NotFound, SeekHit
-*/
-/* Opcode: NoConflict P1 P2 P3 P4 *
-** Synopsis: key=r[P3@P4]
-**
-** If P4==0 then register P3 holds a blob constructed by MakeRecord.  If
-** P4>0 then register P3 is the first of P4 registers that form an unpacked
-** record.
-** 
-** Cursor P1 is on an index btree.  If the record identified by P3 and P4
-** contains any NULL value, jump immediately to P2.  If all terms of the
-** record are not-NULL then a check is done to determine if any row in the
-** P1 index btree has a matching key prefix.  If there are no matches, jump
-** immediately to P2.  If there is a match, fall through and leave the P1
-** cursor pointing to the matching row.
-**
-** This opcode is similar to OP_NotFound with the exceptions that the
-** branch is always taken if any part of the search key input is NULL.
-**
-** This operation leaves the cursor in a state where it cannot be
-** advanced in either direction.  In other words, the Next and Prev
-** opcodes do not work after this operation.
-**
-** See also: NotFound, Found, NotExists
-*/
-case OP_IfNoHope: {     /* jump, in3 */
-  VdbeCursor *pC;
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  if( pC->seekHit ) break;
-  /* Fall through into OP_NotFound */
-}
-case OP_NoConflict:     /* jump, in3 */
-case OP_NotFound:       /* jump, in3 */
-case OP_Found: {        /* jump, in3 */
-  int alreadyExists;
-  int takeJump;
-  int ii;
-  VdbeCursor *pC;
-  int res;
-  UnpackedRecord *pFree;
-  UnpackedRecord *pIdxKey;
-  UnpackedRecord r;
-
-#ifdef SQLITE_TEST
-  if( pOp->opcode!=OP_NoConflict ) tdsqlite3_found_count++;
-#endif
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  assert( pOp->p4type==P4_INT32 );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-#ifdef SQLITE_DEBUG
-  pC->seekOp = pOp->opcode;
-#endif
-  pIn3 = &aMem[pOp->p3];
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( pC->uc.pCursor!=0 );
-  assert( pC->isTable==0 );
-  if( pOp->p4.i>0 ){
-    r.pKeyInfo = pC->pKeyInfo;
-    r.nField = (u16)pOp->p4.i;
-    r.aMem = pIn3;
-#ifdef SQLITE_DEBUG
-    for(ii=0; ii<r.nField; ii++){
-      assert( memIsValid(&r.aMem[ii]) );
-      assert( (r.aMem[ii].flags & MEM_Zero)==0 || r.aMem[ii].n==0 );
-      if( ii ) REGISTER_TRACE(pOp->p3+ii, &r.aMem[ii]);
-    }
-#endif
-    pIdxKey = &r;
-    pFree = 0;
-  }else{
-    assert( pIn3->flags & MEM_Blob );
-    rc = ExpandBlob(pIn3);
-    assert( rc==SQLITE_OK || rc==SQLITE_NOMEM );
-    if( rc ) goto no_mem;
-    pFree = pIdxKey = tdsqlite3VdbeAllocUnpackedRecord(pC->pKeyInfo);
-    if( pIdxKey==0 ) goto no_mem;
-    tdsqlite3VdbeRecordUnpack(pC->pKeyInfo, pIn3->n, pIn3->z, pIdxKey);
-  }
-  pIdxKey->default_rc = 0;
-  takeJump = 0;
-  if( pOp->opcode==OP_NoConflict ){
-    /* For the OP_NoConflict opcode, take the jump if any of the
-    ** input fields are NULL, since any key with a NULL will not
-    ** conflict */
-    for(ii=0; ii<pIdxKey->nField; ii++){
-      if( pIdxKey->aMem[ii].flags & MEM_Null ){
-        takeJump = 1;
-        break;
-      }
-    }
-  }
-  rc = tdsqlite3BtreeMovetoUnpacked(pC->uc.pCursor, pIdxKey, 0, 0, &res);
-  if( pFree ) tdsqlite3DbFreeNN(db, pFree);
-  if( rc!=SQLITE_OK ){
-    goto abort_due_to_error;
-  }
-  pC->seekResult = res;
-  alreadyExists = (res==0);
-  pC->nullRow = 1-alreadyExists;
-  pC->deferredMoveto = 0;
-  pC->cacheStatus = CACHE_STALE;
-  if( pOp->opcode==OP_Found ){
-    VdbeBranchTaken(alreadyExists!=0,2);
-    if( alreadyExists ) goto jump_to_p2;
-  }else{
-    VdbeBranchTaken(takeJump||alreadyExists==0,2);
-    if( takeJump || !alreadyExists ) goto jump_to_p2;
-  }
-  break;
-}
-
-/* Opcode: SeekRowid P1 P2 P3 * *
-** Synopsis: intkey=r[P3]
-**
-** P1 is the index of a cursor open on an SQL table btree (with integer
-** keys).  If register P3 does not contain an integer or if P1 does not
-** contain a record with rowid P3 then jump immediately to P2.  
-** Or, if P2 is 0, raise an SQLITE_CORRUPT error. If P1 does contain
-** a record with rowid P3 then 
-** leave the cursor pointing at that record and fall through to the next
-** instruction.
-**
-** The OP_NotExists opcode performs the same operation, but with OP_NotExists
-** the P3 register must be guaranteed to contain an integer value.  With this
-** opcode, register P3 might not contain an integer.
-**
-** The OP_NotFound opcode performs the same operation on index btrees
-** (with arbitrary multi-value keys).
-**
-** This opcode leaves the cursor in a state where it cannot be advanced
-** in either direction.  In other words, the Next and Prev opcodes will
-** not work following this opcode.
-**
-** See also: Found, NotFound, NoConflict, SeekRowid
-*/
-/* Opcode: NotExists P1 P2 P3 * *
-** Synopsis: intkey=r[P3]
-**
-** P1 is the index of a cursor open on an SQL table btree (with integer
-** keys).  P3 is an integer rowid.  If P1 does not contain a record with
-** rowid P3 then jump immediately to P2.  Or, if P2 is 0, raise an
-** SQLITE_CORRUPT error. If P1 does contain a record with rowid P3 then 
-** leave the cursor pointing at that record and fall through to the next
-** instruction.
-**
-** The OP_SeekRowid opcode performs the same operation but also allows the
-** P3 register to contain a non-integer value, in which case the jump is
-** always taken.  This opcode requires that P3 always contain an integer.
-**
-** The OP_NotFound opcode performs the same operation on index btrees
-** (with arbitrary multi-value keys).
-**
-** This opcode leaves the cursor in a state where it cannot be advanced
-** in either direction.  In other words, the Next and Prev opcodes will
-** not work following this opcode.
-**
-** See also: Found, NotFound, NoConflict, SeekRowid
-*/
-case OP_SeekRowid: {        /* jump, in3 */
-  VdbeCursor *pC;
-  BtCursor *pCrsr;
-  int res;
-  u64 iKey;
-
-  pIn3 = &aMem[pOp->p3];
-  testcase( pIn3->flags & MEM_Int );
-  testcase( pIn3->flags & MEM_IntReal );
-  testcase( pIn3->flags & MEM_Real );
-  testcase( (pIn3->flags & (MEM_Str|MEM_Int))==MEM_Str );
-  if( (pIn3->flags & (MEM_Int|MEM_IntReal))==0 ){
-    /* If pIn3->u.i does not contain an integer, compute iKey as the
-    ** integer value of pIn3.  Jump to P2 if pIn3 cannot be converted
-    ** into an integer without loss of information.  Take care to avoid
-    ** changing the datatype of pIn3, however, as it is used by other
-    ** parts of the prepared statement. */
-    Mem x = pIn3[0];
-    applyAffinity(&x, SQLITE_AFF_NUMERIC, encoding);
-    if( (x.flags & MEM_Int)==0 ) goto jump_to_p2;
-    iKey = x.u.i;
-    goto notExistsWithKey;
-  }
-  /* Fall through into OP_NotExists */
-case OP_NotExists:          /* jump, in3 */
-  pIn3 = &aMem[pOp->p3];
-  assert( (pIn3->flags & MEM_Int)!=0 || pOp->opcode==OP_SeekRowid );
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  iKey = pIn3->u.i;
-notExistsWithKey:
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-#ifdef SQLITE_DEBUG
-  if( pOp->opcode==OP_SeekRowid ) pC->seekOp = OP_SeekRowid;
-#endif
-  assert( pC->isTable );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  pCrsr = pC->uc.pCursor;
-  assert( pCrsr!=0 );
-  res = 0;
-  rc = tdsqlite3BtreeMovetoUnpacked(pCrsr, 0, iKey, 0, &res);
-  assert( rc==SQLITE_OK || res==0 );
-  pC->movetoTarget = iKey;  /* Used by OP_Delete */
-  pC->nullRow = 0;
-  pC->cacheStatus = CACHE_STALE;
-  pC->deferredMoveto = 0;
-  VdbeBranchTaken(res!=0,2);
-  pC->seekResult = res;
-  if( res!=0 ){
-    assert( rc==SQLITE_OK );
-    if( pOp->p2==0 ){
-      rc = SQLITE_CORRUPT_BKPT;
-    }else{
-      goto jump_to_p2;
-    }
-  }
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-
-/* Opcode: Sequence P1 P2 * * *
-** Synopsis: r[P2]=cursor[P1].ctr++
-**
-** Find the next available sequence number for cursor P1.
-** Write the sequence number into register P2.
-** The sequence number on the cursor is incremented after this
-** instruction.  
-*/
-case OP_Sequence: {           /* out2 */
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  assert( p->apCsr[pOp->p1]!=0 );
-  assert( p->apCsr[pOp->p1]->eCurType!=CURTYPE_VTAB );
-  pOut = out2Prerelease(p, pOp);
-  pOut->u.i = p->apCsr[pOp->p1]->seqCount++;
-  break;
-}
-
-
-/* Opcode: NewRowid P1 P2 P3 * *
-** Synopsis: r[P2]=rowid
-**
-** Get a new integer record number (a.k.a "rowid") used as the key to a table.
-** The record number is not previously used as a key in the database
-** table that cursor P1 points to.  The new record number is written
-** written to register P2.
-**
-** If P3>0 then P3 is a register in the root frame of this VDBE that holds 
-** the largest previously generated record number. No new record numbers are
-** allowed to be less than this value. When this value reaches its maximum, 
-** an SQLITE_FULL error is generated. The P3 register is updated with the '
-** generated record number. This P3 mechanism is used to help implement the
-** AUTOINCREMENT feature.
-*/
-case OP_NewRowid: {           /* out2 */
-  i64 v;                 /* The new rowid */
-  VdbeCursor *pC;        /* Cursor of table to get the new rowid */
-  int res;               /* Result of an tdsqlite3BtreeLast() */
-  int cnt;               /* Counter to limit the number of searches */
-  Mem *pMem;             /* Register holding largest rowid for AUTOINCREMENT */
-  VdbeFrame *pFrame;     /* Root frame of VDBE */
-
-  v = 0;
-  res = 0;
-  pOut = out2Prerelease(p, pOp);
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->isTable );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( pC->uc.pCursor!=0 );
-  {
-    /* The next rowid or record number (different terms for the same
-    ** thing) is obtained in a two-step algorithm.
-    **
-    ** First we attempt to find the largest existing rowid and add one
-    ** to that.  But if the largest existing rowid is already the maximum
-    ** positive integer, we have to fall through to the second
-    ** probabilistic algorithm
-    **
-    ** The second algorithm is to select a rowid at random and see if
-    ** it already exists in the table.  If it does not exist, we have
-    ** succeeded.  If the random rowid does exist, we select a new one
-    ** and try again, up to 100 times.
-    */
-    assert( pC->isTable );
-
-#ifdef SQLITE_32BIT_ROWID
-#   define MAX_ROWID 0x7fffffff
-#else
-    /* Some compilers complain about constants of the form 0x7fffffffffffffff.
-    ** Others complain about 0x7ffffffffffffffffLL.  The following macro seems
-    ** to provide the constant while making all compilers happy.
-    */
-#   define MAX_ROWID  (i64)( (((u64)0x7fffffff)<<32) | (u64)0xffffffff )
-#endif
-
-    if( !pC->useRandomRowid ){
-      rc = tdsqlite3BtreeLast(pC->uc.pCursor, &res);
-      if( rc!=SQLITE_OK ){
-        goto abort_due_to_error;
-      }
-      if( res ){
-        v = 1;   /* IMP: R-61914-48074 */
-      }else{
-        assert( tdsqlite3BtreeCursorIsValid(pC->uc.pCursor) );
-        v = tdsqlite3BtreeIntegerKey(pC->uc.pCursor);
-        if( v>=MAX_ROWID ){
-          pC->useRandomRowid = 1;
-        }else{
-          v++;   /* IMP: R-29538-34987 */
-        }
-      }
-    }
-
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-    if( pOp->p3 ){
-      /* Assert that P3 is a valid memory cell. */
-      assert( pOp->p3>0 );
-      if( p->pFrame ){
-        for(pFrame=p->pFrame; pFrame->pParent; pFrame=pFrame->pParent);
-        /* Assert that P3 is a valid memory cell. */
-        assert( pOp->p3<=pFrame->nMem );
-        pMem = &pFrame->aMem[pOp->p3];
-      }else{
-        /* Assert that P3 is a valid memory cell. */
-        assert( pOp->p3<=(p->nMem+1 - p->nCursor) );
-        pMem = &aMem[pOp->p3];
-        memAboutToChange(p, pMem);
-      }
-      assert( memIsValid(pMem) );
-
-      REGISTER_TRACE(pOp->p3, pMem);
-      tdsqlite3VdbeMemIntegerify(pMem);
-      assert( (pMem->flags & MEM_Int)!=0 );  /* mem(P3) holds an integer */
-      if( pMem->u.i==MAX_ROWID || pC->useRandomRowid ){
-        rc = SQLITE_FULL;   /* IMP: R-17817-00630 */
-        goto abort_due_to_error;
-      }
-      if( v<pMem->u.i+1 ){
-        v = pMem->u.i + 1;
-      }
-      pMem->u.i = v;
-    }
-#endif
-    if( pC->useRandomRowid ){
-      /* IMPLEMENTATION-OF: R-07677-41881 If the largest ROWID is equal to the
-      ** largest possible integer (9223372036854775807) then the database
-      ** engine starts picking positive candidate ROWIDs at random until
-      ** it finds one that is not previously used. */
-      assert( pOp->p3==0 );  /* We cannot be in random rowid mode if this is
-                             ** an AUTOINCREMENT table. */
-      cnt = 0;
-      do{
-        tdsqlite3_randomness(sizeof(v), &v);
-        v &= (MAX_ROWID>>1); v++;  /* Ensure that v is greater than zero */
-      }while(  ((rc = tdsqlite3BtreeMovetoUnpacked(pC->uc.pCursor, 0, (u64)v,
-                                                 0, &res))==SQLITE_OK)
-            && (res==0)
-            && (++cnt<100));
-      if( rc ) goto abort_due_to_error;
-      if( res==0 ){
-        rc = SQLITE_FULL;   /* IMP: R-38219-53002 */
-        goto abort_due_to_error;
-      }
-      assert( v>0 );  /* EV: R-40812-03570 */
-    }
-    pC->deferredMoveto = 0;
-    pC->cacheStatus = CACHE_STALE;
-  }
-  pOut->u.i = v;
-  break;
-}
-
-/* Opcode: Insert P1 P2 P3 P4 P5
-** Synopsis: intkey=r[P3] data=r[P2]
-**
-** Write an entry into the table of cursor P1.  A new entry is
-** created if it doesn't already exist or the data for an existing
-** entry is overwritten.  The data is the value MEM_Blob stored in register
-** number P2. The key is stored in register P3. The key must
-** be a MEM_Int.
-**
-** If the OPFLAG_NCHANGE flag of P5 is set, then the row change count is
-** incremented (otherwise not).  If the OPFLAG_LASTROWID flag of P5 is set,
-** then rowid is stored for subsequent return by the
-** tdsqlite3_last_insert_rowid() function (otherwise it is unmodified).
-**
-** If the OPFLAG_USESEEKRESULT flag of P5 is set, the implementation might
-** run faster by avoiding an unnecessary seek on cursor P1.  However,
-** the OPFLAG_USESEEKRESULT flag must only be set if there have been no prior
-** seeks on the cursor or if the most recent seek used a key equal to P3.
-**
-** If the OPFLAG_ISUPDATE flag is set, then this opcode is part of an
-** UPDATE operation.  Otherwise (if the flag is clear) then this opcode
-** is part of an INSERT operation.  The difference is only important to
-** the update hook.
-**
-** Parameter P4 may point to a Table structure, or may be NULL. If it is 
-** not NULL, then the update-hook (sqlite3.xUpdateCallback) is invoked 
-** following a successful insert.
-**
-** (WARNING/TODO: If P1 is a pseudo-cursor and P2 is dynamically
-** allocated, then ownership of P2 is transferred to the pseudo-cursor
-** and register P2 becomes ephemeral.  If the cursor is changed, the
-** value of register P2 will then change.  Make sure this does not
-** cause any problems.)
-**
-** This instruction only works on tables.  The equivalent instruction
-** for indices is OP_IdxInsert.
-*/
-case OP_Insert: {
-  Mem *pData;       /* MEM cell holding data for the record to be inserted */
-  Mem *pKey;        /* MEM cell holding key  for the record */
-  VdbeCursor *pC;   /* Cursor to table into which insert is written */
-  int seekResult;   /* Result of prior seek or 0 if no USESEEKRESULT flag */
-  const char *zDb;  /* database name - used by the update hook */
-  Table *pTab;      /* Table structure - used by update and pre-update hooks */
-  BtreePayload x;   /* Payload to be inserted */
-
-  pData = &aMem[pOp->p2];
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  assert( memIsValid(pData) );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( pC->deferredMoveto==0 );
-  assert( pC->uc.pCursor!=0 );
-  assert( (pOp->p5 & OPFLAG_ISNOOP) || pC->isTable );
-  assert( pOp->p4type==P4_TABLE || pOp->p4type>=P4_STATIC );
-  REGISTER_TRACE(pOp->p2, pData);
-  tdsqlite3VdbeIncrWriteCounter(p, pC);
-
-  pKey = &aMem[pOp->p3];
-  assert( pKey->flags & MEM_Int );
-  assert( memIsValid(pKey) );
-  REGISTER_TRACE(pOp->p3, pKey);
-  x.nKey = pKey->u.i;
-
-  if( pOp->p4type==P4_TABLE && HAS_UPDATE_HOOK(db) ){
-    assert( pC->iDb>=0 );
-    zDb = db->aDb[pC->iDb].zDbSName;
-    pTab = pOp->p4.pTab;
-    assert( (pOp->p5 & OPFLAG_ISNOOP) || HasRowid(pTab) );
-  }else{
-    pTab = 0;
-    zDb = 0;  /* Not needed.  Silence a compiler warning. */
-  }
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-  /* Invoke the pre-update hook, if any */
-  if( pTab ){
-    if( db->xPreUpdateCallback && !(pOp->p5 & OPFLAG_ISUPDATE) ){
-      tdsqlite3VdbePreUpdateHook(p, pC, SQLITE_INSERT, zDb, pTab, x.nKey,pOp->p2);
-    }
-    if( db->xUpdateCallback==0 || pTab->aCol==0 ){
-      /* Prevent post-update hook from running in cases when it should not */
-      pTab = 0;
-    }
-  }
-  if( pOp->p5 & OPFLAG_ISNOOP ) break;
-#endif
-
-  if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
-  if( pOp->p5 & OPFLAG_LASTROWID ) db->lastRowid = x.nKey;
-  assert( pData->flags & (MEM_Blob|MEM_Str) );
-  x.pData = pData->z;
-  x.nData = pData->n;
-  seekResult = ((pOp->p5 & OPFLAG_USESEEKRESULT) ? pC->seekResult : 0);
-  if( pData->flags & MEM_Zero ){
-    x.nZero = pData->u.nZero;
-  }else{
-    x.nZero = 0;
-  }
-  x.pKey = 0;
-  rc = tdsqlite3BtreeInsert(pC->uc.pCursor, &x,
-      (pOp->p5 & (OPFLAG_APPEND|OPFLAG_SAVEPOSITION)), seekResult
-  );
-  pC->deferredMoveto = 0;
-  pC->cacheStatus = CACHE_STALE;
-
-  /* Invoke the update-hook if required. */
-  if( rc ) goto abort_due_to_error;
-  if( pTab ){
-    assert( db->xUpdateCallback!=0 );
-    assert( pTab->aCol!=0 );
-    db->xUpdateCallback(db->pUpdateArg,
-           (pOp->p5 & OPFLAG_ISUPDATE) ? SQLITE_UPDATE : SQLITE_INSERT,
-           zDb, pTab->zName, x.nKey);
-  }
-  break;
-}
-
-/* Opcode: Delete P1 P2 P3 P4 P5
-**
-** Delete the record at which the P1 cursor is currently pointing.
-**
-** If the OPFLAG_SAVEPOSITION bit of the P5 parameter is set, then
-** the cursor will be left pointing at  either the next or the previous
-** record in the table. If it is left pointing at the next record, then
-** the next Next instruction will be a no-op. As a result, in this case
-** it is ok to delete a record from within a Next loop. If 
-** OPFLAG_SAVEPOSITION bit of P5 is clear, then the cursor will be
-** left in an undefined state.
-**
-** If the OPFLAG_AUXDELETE bit is set on P5, that indicates that this
-** delete one of several associated with deleting a table row and all its
-** associated index entries.  Exactly one of those deletes is the "primary"
-** delete.  The others are all on OPFLAG_FORDELETE cursors or else are
-** marked with the AUXDELETE flag.
-**
-** If the OPFLAG_NCHANGE flag of P2 (NB: P2 not P5) is set, then the row
-** change count is incremented (otherwise not).
-**
-** P1 must not be pseudo-table.  It has to be a real table with
-** multiple rows.
-**
-** If P4 is not NULL then it points to a Table object. In this case either 
-** the update or pre-update hook, or both, may be invoked. The P1 cursor must
-** have been positioned using OP_NotFound prior to invoking this opcode in 
-** this case. Specifically, if one is configured, the pre-update hook is 
-** invoked if P4 is not NULL. The update-hook is invoked if one is configured, 
-** P4 is not NULL, and the OPFLAG_NCHANGE flag is set in P2.
-**
-** If the OPFLAG_ISUPDATE flag is set in P2, then P3 contains the address
-** of the memory cell that contains the value that the rowid of the row will
-** be set to by the update.
-*/
-case OP_Delete: {
-  VdbeCursor *pC;
-  const char *zDb;
-  Table *pTab;
-  int opflags;
-
-  opflags = pOp->p2;
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( pC->uc.pCursor!=0 );
-  assert( pC->deferredMoveto==0 );
-  tdsqlite3VdbeIncrWriteCounter(p, pC);
-
-#ifdef SQLITE_DEBUG
-  if( pOp->p4type==P4_TABLE
-   && HasRowid(pOp->p4.pTab)
-   && pOp->p5==0
-   && tdsqlite3BtreeCursorIsValidNN(pC->uc.pCursor)
-  ){
-    /* If p5 is zero, the seek operation that positioned the cursor prior to
-    ** OP_Delete will have also set the pC->movetoTarget field to the rowid of
-    ** the row that is being deleted */
-    i64 iKey = tdsqlite3BtreeIntegerKey(pC->uc.pCursor);
-    assert( CORRUPT_DB || pC->movetoTarget==iKey );
-  }
-#endif
-
-  /* If the update-hook or pre-update-hook will be invoked, set zDb to
-  ** the name of the db to pass as to it. Also set local pTab to a copy
-  ** of p4.pTab. Finally, if p5 is true, indicating that this cursor was
-  ** last moved with OP_Next or OP_Prev, not Seek or NotFound, set 
-  ** VdbeCursor.movetoTarget to the current rowid.  */
-  if( pOp->p4type==P4_TABLE && HAS_UPDATE_HOOK(db) ){
-    assert( pC->iDb>=0 );
-    assert( pOp->p4.pTab!=0 );
-    zDb = db->aDb[pC->iDb].zDbSName;
-    pTab = pOp->p4.pTab;
-    if( (pOp->p5 & OPFLAG_SAVEPOSITION)!=0 && pC->isTable ){
-      pC->movetoTarget = tdsqlite3BtreeIntegerKey(pC->uc.pCursor);
-    }
-  }else{
-    zDb = 0;   /* Not needed.  Silence a compiler warning. */
-    pTab = 0;  /* Not needed.  Silence a compiler warning. */
-  }
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-  /* Invoke the pre-update-hook if required. */
-  if( db->xPreUpdateCallback && pOp->p4.pTab ){
-    assert( !(opflags & OPFLAG_ISUPDATE) 
-         || HasRowid(pTab)==0 
-         || (aMem[pOp->p3].flags & MEM_Int) 
-    );
-    tdsqlite3VdbePreUpdateHook(p, pC,
-        (opflags & OPFLAG_ISUPDATE) ? SQLITE_UPDATE : SQLITE_DELETE, 
-        zDb, pTab, pC->movetoTarget,
-        pOp->p3
-    );
-  }
-  if( opflags & OPFLAG_ISNOOP ) break;
-#endif
- 
-  /* Only flags that can be set are SAVEPOISTION and AUXDELETE */ 
-  assert( (pOp->p5 & ~(OPFLAG_SAVEPOSITION|OPFLAG_AUXDELETE))==0 );
-  assert( OPFLAG_SAVEPOSITION==BTREE_SAVEPOSITION );
-  assert( OPFLAG_AUXDELETE==BTREE_AUXDELETE );
-
-#ifdef SQLITE_DEBUG
-  if( p->pFrame==0 ){
-    if( pC->isEphemeral==0
-        && (pOp->p5 & OPFLAG_AUXDELETE)==0
-        && (pC->wrFlag & OPFLAG_FORDELETE)==0
-      ){
-      nExtraDelete++;
-    }
-    if( pOp->p2 & OPFLAG_NCHANGE ){
-      nExtraDelete--;
-    }
-  }
-#endif
-
-  rc = tdsqlite3BtreeDelete(pC->uc.pCursor, pOp->p5);
-  pC->cacheStatus = CACHE_STALE;
-  pC->seekResult = 0;
-  if( rc ) goto abort_due_to_error;
-
-  /* Invoke the update-hook if required. */
-  if( opflags & OPFLAG_NCHANGE ){
-    p->nChange++;
-    if( db->xUpdateCallback && HasRowid(pTab) ){
-      db->xUpdateCallback(db->pUpdateArg, SQLITE_DELETE, zDb, pTab->zName,
-          pC->movetoTarget);
-      assert( pC->iDb>=0 );
-    }
-  }
-
-  break;
-}
-/* Opcode: ResetCount * * * * *
-**
-** The value of the change counter is copied to the database handle
-** change counter (returned by subsequent calls to tdsqlite3_changes()).
-** Then the VMs internal change counter resets to 0.
-** This is used by trigger programs.
-*/
-case OP_ResetCount: {
-  tdsqlite3VdbeSetChanges(db, p->nChange);
-  p->nChange = 0;
-  break;
-}
-
-/* Opcode: SorterCompare P1 P2 P3 P4
-** Synopsis: if key(P1)!=trim(r[P3],P4) goto P2
-**
-** P1 is a sorter cursor. This instruction compares a prefix of the
-** record blob in register P3 against a prefix of the entry that 
-** the sorter cursor currently points to.  Only the first P4 fields
-** of r[P3] and the sorter record are compared.
-**
-** If either P3 or the sorter contains a NULL in one of their significant
-** fields (not counting the P4 fields at the end which are ignored) then
-** the comparison is assumed to be equal.
-**
-** Fall through to next instruction if the two records compare equal to
-** each other.  Jump to P2 if they are different.
-*/
-case OP_SorterCompare: {
-  VdbeCursor *pC;
-  int res;
-  int nKeyCol;
-
-  pC = p->apCsr[pOp->p1];
-  assert( isSorter(pC) );
-  assert( pOp->p4type==P4_INT32 );
-  pIn3 = &aMem[pOp->p3];
-  nKeyCol = pOp->p4.i;
-  res = 0;
-  rc = tdsqlite3VdbeSorterCompare(pC, pIn3, nKeyCol, &res);
-  VdbeBranchTaken(res!=0,2);
-  if( rc ) goto abort_due_to_error;
-  if( res ) goto jump_to_p2;
-  break;
-};
-
-/* Opcode: SorterData P1 P2 P3 * *
-** Synopsis: r[P2]=data
-**
-** Write into register P2 the current sorter data for sorter cursor P1.
-** Then clear the column header cache on cursor P3.
-**
-** This opcode is normally use to move a record out of the sorter and into
-** a register that is the source for a pseudo-table cursor created using
-** OpenPseudo.  That pseudo-table cursor is the one that is identified by
-** parameter P3.  Clearing the P3 column cache as part of this opcode saves
-** us from having to issue a separate NullRow instruction to clear that cache.
-*/
-case OP_SorterData: {
-  VdbeCursor *pC;
-
-  pOut = &aMem[pOp->p2];
-  pC = p->apCsr[pOp->p1];
-  assert( isSorter(pC) );
-  rc = tdsqlite3VdbeSorterRowkey(pC, pOut);
-  assert( rc!=SQLITE_OK || (pOut->flags & MEM_Blob) );
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  if( rc ) goto abort_due_to_error;
-  p->apCsr[pOp->p3]->cacheStatus = CACHE_STALE;
-  break;
-}
-
-/* Opcode: RowData P1 P2 P3 * *
-** Synopsis: r[P2]=data
-**
-** Write into register P2 the complete row content for the row at 
-** which cursor P1 is currently pointing.
-** There is no interpretation of the data.  
-** It is just copied onto the P2 register exactly as 
-** it is found in the database file.
-**
-** If cursor P1 is an index, then the content is the key of the row.
-** If cursor P2 is a table, then the content extracted is the data.
-**
-** If the P1 cursor must be pointing to a valid row (not a NULL row)
-** of a real table, not a pseudo-table.
-**
-** If P3!=0 then this opcode is allowed to make an ephemeral pointer
-** into the database page.  That means that the content of the output
-** register will be invalidated as soon as the cursor moves - including
-** moves caused by other cursors that "save" the current cursors
-** position in order that they can write to the same table.  If P3==0
-** then a copy of the data is made into memory.  P3!=0 is faster, but
-** P3==0 is safer.
-**
-** If P3!=0 then the content of the P2 register is unsuitable for use
-** in OP_Result and any OP_Result will invalidate the P2 register content.
-** The P2 register content is invalidated by opcodes like OP_Function or
-** by any use of another cursor pointing to the same table.
-*/
-case OP_RowData: {
-  VdbeCursor *pC;
-  BtCursor *pCrsr;
-  u32 n;
-
-  pOut = out2Prerelease(p, pOp);
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( isSorter(pC)==0 );
-  assert( pC->nullRow==0 );
-  assert( pC->uc.pCursor!=0 );
-  pCrsr = pC->uc.pCursor;
-
-  /* The OP_RowData opcodes always follow OP_NotExists or
-  ** OP_SeekRowid or OP_Rewind/Op_Next with no intervening instructions
-  ** that might invalidate the cursor.
-  ** If this where not the case, on of the following assert()s
-  ** would fail.  Should this ever change (because of changes in the code
-  ** generator) then the fix would be to insert a call to
-  ** tdsqlite3VdbeCursorMoveto().
-  */
-  assert( pC->deferredMoveto==0 );
-  assert( tdsqlite3BtreeCursorIsValid(pCrsr) );
-#if 0  /* Not required due to the previous to assert() statements */
-  rc = tdsqlite3VdbeCursorMoveto(pC);
-  if( rc!=SQLITE_OK ) goto abort_due_to_error;
-#endif
-
-  n = tdsqlite3BtreePayloadSize(pCrsr);
-  if( n>(u32)db->aLimit[SQLITE_LIMIT_LENGTH] ){
-    goto too_big;
-  }
-  testcase( n==0 );
-  rc = tdsqlite3VdbeMemFromBtree(pCrsr, 0, n, pOut);
-  if( rc ) goto abort_due_to_error;
-  if( !pOp->p3 ) Deephemeralize(pOut);
-  UPDATE_MAX_BLOBSIZE(pOut);
-  REGISTER_TRACE(pOp->p2, pOut);
-  break;
-}
-
-/* Opcode: Rowid P1 P2 * * *
-** Synopsis: r[P2]=rowid
-**
-** Store in register P2 an integer which is the key of the table entry that
-** P1 is currently point to.
-**
-** P1 can be either an ordinary table or a virtual table.  There used to
-** be a separate OP_VRowid opcode for use with virtual tables, but this
-** one opcode now works for both table types.
-*/
-case OP_Rowid: {                 /* out2 */
-  VdbeCursor *pC;
-  i64 v;
-  tdsqlite3_vtab *pVtab;
-  const tdsqlite3_module *pModule;
-
-  pOut = out2Prerelease(p, pOp);
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType!=CURTYPE_PSEUDO || pC->nullRow );
-  if( pC->nullRow ){
-    pOut->flags = MEM_Null;
-    break;
-  }else if( pC->deferredMoveto ){
-    v = pC->movetoTarget;
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  }else if( pC->eCurType==CURTYPE_VTAB ){
-    assert( pC->uc.pVCur!=0 );
-    pVtab = pC->uc.pVCur->pVtab;
-    pModule = pVtab->pModule;
-    assert( pModule->xRowid );
-    rc = pModule->xRowid(pC->uc.pVCur, &v);
-    tdsqlite3VtabImportErrmsg(p, pVtab);
-    if( rc ) goto abort_due_to_error;
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-  }else{
-    assert( pC->eCurType==CURTYPE_BTREE );
-    assert( pC->uc.pCursor!=0 );
-    rc = tdsqlite3VdbeCursorRestore(pC);
-    if( rc ) goto abort_due_to_error;
-    if( pC->nullRow ){
-      pOut->flags = MEM_Null;
-      break;
-    }
-    v = tdsqlite3BtreeIntegerKey(pC->uc.pCursor);
-  }
-  pOut->u.i = v;
-  break;
-}
-
-/* Opcode: NullRow P1 * * * *
-**
-** Move the cursor P1 to a null row.  Any OP_Column operations
-** that occur while the cursor is on the null row will always
-** write a NULL.
-*/
-case OP_NullRow: {
-  VdbeCursor *pC;
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  pC->nullRow = 1;
-  pC->cacheStatus = CACHE_STALE;
-  if( pC->eCurType==CURTYPE_BTREE ){
-    assert( pC->uc.pCursor!=0 );
-    tdsqlite3BtreeClearCursor(pC->uc.pCursor);
-  }
-#ifdef SQLITE_DEBUG
-  if( pC->seekOp==0 ) pC->seekOp = OP_NullRow;
-#endif
-  break;
-}
-
-/* Opcode: SeekEnd P1 * * * *
-**
-** Position cursor P1 at the end of the btree for the purpose of
-** appending a new entry onto the btree.
-**
-** It is assumed that the cursor is used only for appending and so
-** if the cursor is valid, then the cursor must already be pointing
-** at the end of the btree and so no changes are made to
-** the cursor.
-*/
-/* Opcode: Last P1 P2 * * *
-**
-** The next use of the Rowid or Column or Prev instruction for P1 
-** will refer to the last entry in the database table or index.
-** If the table or index is empty and P2>0, then jump immediately to P2.
-** If P2 is 0 or if the table or index is not empty, fall through
-** to the following instruction.
-**
-** This opcode leaves the cursor configured to move in reverse order,
-** from the end toward the beginning.  In other words, the cursor is
-** configured to use Prev, not Next.
-*/
-case OP_SeekEnd:
-case OP_Last: {        /* jump */
-  VdbeCursor *pC;
-  BtCursor *pCrsr;
-  int res;
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  pCrsr = pC->uc.pCursor;
-  res = 0;
-  assert( pCrsr!=0 );
-#ifdef SQLITE_DEBUG
-  pC->seekOp = pOp->opcode;
-#endif
-  if( pOp->opcode==OP_SeekEnd ){
-    assert( pOp->p2==0 );
-    pC->seekResult = -1;
-    if( tdsqlite3BtreeCursorIsValidNN(pCrsr) ){
-      break;
-    }
-  }
-  rc = tdsqlite3BtreeLast(pCrsr, &res);
-  pC->nullRow = (u8)res;
-  pC->deferredMoveto = 0;
-  pC->cacheStatus = CACHE_STALE;
-  if( rc ) goto abort_due_to_error;
-  if( pOp->p2>0 ){
-    VdbeBranchTaken(res!=0,2);
-    if( res ) goto jump_to_p2;
-  }
-  break;
-}
-
-/* Opcode: IfSmaller P1 P2 P3 * *
-**
-** Estimate the number of rows in the table P1.  Jump to P2 if that
-** estimate is less than approximately 2**(0.1*P3).
-*/
-case OP_IfSmaller: {        /* jump */
-  VdbeCursor *pC;
-  BtCursor *pCrsr;
-  int res;
-  i64 sz;
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  pCrsr = pC->uc.pCursor;
-  assert( pCrsr );
-  rc = tdsqlite3BtreeFirst(pCrsr, &res);
-  if( rc ) goto abort_due_to_error;
-  if( res==0 ){
-    sz = tdsqlite3BtreeRowCountEst(pCrsr);
-    if( ALWAYS(sz>=0) && tdsqlite3LogEst((u64)sz)<pOp->p3 ) res = 1;
-  }
-  VdbeBranchTaken(res!=0,2);
-  if( res ) goto jump_to_p2;
-  break;
-}
-
-
-/* Opcode: SorterSort P1 P2 * * *
-**
-** After all records have been inserted into the Sorter object
-** identified by P1, invoke this opcode to actually do the sorting.
-** Jump to P2 if there are no records to be sorted.
-**
-** This opcode is an alias for OP_Sort and OP_Rewind that is used
-** for Sorter objects.
-*/
-/* Opcode: Sort P1 P2 * * *
-**
-** This opcode does exactly the same thing as OP_Rewind except that
-** it increments an undocumented global variable used for testing.
-**
-** Sorting is accomplished by writing records into a sorting index,
-** then rewinding that index and playing it back from beginning to
-** end.  We use the OP_Sort opcode instead of OP_Rewind to do the
-** rewinding so that the global variable will be incremented and
-** regression tests can determine whether or not the optimizer is
-** correctly optimizing out sorts.
-*/
-case OP_SorterSort:    /* jump */
-case OP_Sort: {        /* jump */
-#ifdef SQLITE_TEST
-  tdsqlite3_sort_count++;
-  tdsqlite3_search_count--;
-#endif
-  p->aCounter[SQLITE_STMTSTATUS_SORT]++;
-  /* Fall through into OP_Rewind */
-}
-/* Opcode: Rewind P1 P2 * * *
-**
-** The next use of the Rowid or Column or Next instruction for P1 
-** will refer to the first entry in the database table or index.
-** If the table or index is empty, jump immediately to P2.
-** If the table or index is not empty, fall through to the following 
-** instruction.
-**
-** This opcode leaves the cursor configured to move in forward order,
-** from the beginning toward the end.  In other words, the cursor is
-** configured to use Next, not Prev.
-*/
-case OP_Rewind: {        /* jump */
-  VdbeCursor *pC;
-  BtCursor *pCrsr;
-  int res;
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  assert( pOp->p5==0 );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( isSorter(pC)==(pOp->opcode==OP_SorterSort) );
-  res = 1;
-#ifdef SQLITE_DEBUG
-  pC->seekOp = OP_Rewind;
-#endif
-  if( isSorter(pC) ){
-    rc = tdsqlite3VdbeSorterRewind(pC, &res);
-  }else{
-    assert( pC->eCurType==CURTYPE_BTREE );
-    pCrsr = pC->uc.pCursor;
-    assert( pCrsr );
-    rc = tdsqlite3BtreeFirst(pCrsr, &res);
-    pC->deferredMoveto = 0;
-    pC->cacheStatus = CACHE_STALE;
-  }
-  if( rc ) goto abort_due_to_error;
-  pC->nullRow = (u8)res;
-  assert( pOp->p2>0 && pOp->p2<p->nOp );
-  VdbeBranchTaken(res!=0,2);
-  if( res ) goto jump_to_p2;
-  break;
-}
-
-/* Opcode: Next P1 P2 P3 P4 P5
-**
-** Advance cursor P1 so that it points to the next key/data pair in its
-** table or index.  If there are no more key/value pairs then fall through
-** to the following instruction.  But if the cursor advance was successful,
-** jump immediately to P2.
-**
-** The Next opcode is only valid following an SeekGT, SeekGE, or
-** OP_Rewind opcode used to position the cursor.  Next is not allowed
-** to follow SeekLT, SeekLE, or OP_Last.
-**
-** The P1 cursor must be for a real table, not a pseudo-table.  P1 must have
-** been opened prior to this opcode or the program will segfault.
-**
-** The P3 value is a hint to the btree implementation. If P3==1, that
-** means P1 is an SQL index and that this instruction could have been
-** omitted if that index had been unique.  P3 is usually 0.  P3 is
-** always either 0 or 1.
-**
-** P4 is always of type P4_ADVANCE. The function pointer points to
-** tdsqlite3BtreeNext().
-**
-** If P5 is positive and the jump is taken, then event counter
-** number P5-1 in the prepared statement is incremented.
-**
-** See also: Prev
-*/
-/* Opcode: Prev P1 P2 P3 P4 P5
-**
-** Back up cursor P1 so that it points to the previous key/data pair in its
-** table or index.  If there is no previous key/value pairs then fall through
-** to the following instruction.  But if the cursor backup was successful,
-** jump immediately to P2.
-**
-**
-** The Prev opcode is only valid following an SeekLT, SeekLE, or
-** OP_Last opcode used to position the cursor.  Prev is not allowed
-** to follow SeekGT, SeekGE, or OP_Rewind.
-**
-** The P1 cursor must be for a real table, not a pseudo-table.  If P1 is
-** not open then the behavior is undefined.
-**
-** The P3 value is a hint to the btree implementation. If P3==1, that
-** means P1 is an SQL index and that this instruction could have been
-** omitted if that index had been unique.  P3 is usually 0.  P3 is
-** always either 0 or 1.
-**
-** P4 is always of type P4_ADVANCE. The function pointer points to
-** tdsqlite3BtreePrevious().
-**
-** If P5 is positive and the jump is taken, then event counter
-** number P5-1 in the prepared statement is incremented.
-*/
-/* Opcode: SorterNext P1 P2 * * P5
-**
-** This opcode works just like OP_Next except that P1 must be a
-** sorter object for which the OP_SorterSort opcode has been
-** invoked.  This opcode advances the cursor to the next sorted
-** record, or jumps to P2 if there are no more sorted records.
-*/
-case OP_SorterNext: {  /* jump */
-  VdbeCursor *pC;
-
-  pC = p->apCsr[pOp->p1];
-  assert( isSorter(pC) );
-  rc = tdsqlite3VdbeSorterNext(db, pC);
-  goto next_tail;
-case OP_Prev:          /* jump */
-case OP_Next:          /* jump */
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  assert( pOp->p5<ArraySize(p->aCounter) );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->deferredMoveto==0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( pOp->opcode!=OP_Next || pOp->p4.xAdvance==tdsqlite3BtreeNext );
-  assert( pOp->opcode!=OP_Prev || pOp->p4.xAdvance==tdsqlite3BtreePrevious );
-
-  /* The Next opcode is only used after SeekGT, SeekGE, Rewind, and Found.
-  ** The Prev opcode is only used after SeekLT, SeekLE, and Last. */
-  assert( pOp->opcode!=OP_Next
-       || pC->seekOp==OP_SeekGT || pC->seekOp==OP_SeekGE
-       || pC->seekOp==OP_Rewind || pC->seekOp==OP_Found
-       || pC->seekOp==OP_NullRow|| pC->seekOp==OP_SeekRowid
-       || pC->seekOp==OP_IfNoHope);
-  assert( pOp->opcode!=OP_Prev
-       || pC->seekOp==OP_SeekLT || pC->seekOp==OP_SeekLE
-       || pC->seekOp==OP_Last   || pC->seekOp==OP_IfNoHope
-       || pC->seekOp==OP_NullRow);
-
-  rc = pOp->p4.xAdvance(pC->uc.pCursor, pOp->p3);
-next_tail:
-  pC->cacheStatus = CACHE_STALE;
-  VdbeBranchTaken(rc==SQLITE_OK,2);
-  if( rc==SQLITE_OK ){
-    pC->nullRow = 0;
-    p->aCounter[pOp->p5]++;
-#ifdef SQLITE_TEST
-    tdsqlite3_search_count++;
-#endif
-    goto jump_to_p2_and_check_for_interrupt;
-  }
-  if( rc!=SQLITE_DONE ) goto abort_due_to_error;
-  rc = SQLITE_OK;
-  pC->nullRow = 1;
-  goto check_for_interrupt;
-}
-
-/* Opcode: IdxInsert P1 P2 P3 P4 P5
-** Synopsis: key=r[P2]
-**
-** Register P2 holds an SQL index key made using the
-** MakeRecord instructions.  This opcode writes that key
-** into the index P1.  Data for the entry is nil.
-**
-** If P4 is not zero, then it is the number of values in the unpacked
-** key of reg(P2).  In that case, P3 is the index of the first register
-** for the unpacked key.  The availability of the unpacked key can sometimes
-** be an optimization.
-**
-** If P5 has the OPFLAG_APPEND bit set, that is a hint to the b-tree layer
-** that this insert is likely to be an append.
-**
-** If P5 has the OPFLAG_NCHANGE bit set, then the change counter is
-** incremented by this instruction.  If the OPFLAG_NCHANGE bit is clear,
-** then the change counter is unchanged.
-**
-** If the OPFLAG_USESEEKRESULT flag of P5 is set, the implementation might
-** run faster by avoiding an unnecessary seek on cursor P1.  However,
-** the OPFLAG_USESEEKRESULT flag must only be set if there have been no prior
-** seeks on the cursor or if the most recent seek used a key equivalent
-** to P2. 
-**
-** This instruction only works for indices.  The equivalent instruction
-** for tables is OP_Insert.
-*/
-/* Opcode: SorterInsert P1 P2 * * *
-** Synopsis: key=r[P2]
-**
-** Register P2 holds an SQL index key made using the
-** MakeRecord instructions.  This opcode writes that key
-** into the sorter P1.  Data for the entry is nil.
-*/
-case OP_SorterInsert:       /* in2 */
-case OP_IdxInsert: {        /* in2 */
-  VdbeCursor *pC;
-  BtreePayload x;
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  tdsqlite3VdbeIncrWriteCounter(p, pC);
-  assert( pC!=0 );
-  assert( isSorter(pC)==(pOp->opcode==OP_SorterInsert) );
-  pIn2 = &aMem[pOp->p2];
-  assert( pIn2->flags & MEM_Blob );
-  if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
-  assert( pC->eCurType==CURTYPE_BTREE || pOp->opcode==OP_SorterInsert );
-  assert( pC->isTable==0 );
-  rc = ExpandBlob(pIn2);
-  if( rc ) goto abort_due_to_error;
-  if( pOp->opcode==OP_SorterInsert ){
-    rc = tdsqlite3VdbeSorterWrite(pC, pIn2);
-  }else{
-    x.nKey = pIn2->n;
-    x.pKey = pIn2->z;
-    x.aMem = aMem + pOp->p3;
-    x.nMem = (u16)pOp->p4.i;
-    rc = tdsqlite3BtreeInsert(pC->uc.pCursor, &x,
-         (pOp->p5 & (OPFLAG_APPEND|OPFLAG_SAVEPOSITION)), 
-        ((pOp->p5 & OPFLAG_USESEEKRESULT) ? pC->seekResult : 0)
-        );
-    assert( pC->deferredMoveto==0 );
-    pC->cacheStatus = CACHE_STALE;
-  }
-  if( rc) goto abort_due_to_error;
-  break;
-}
-
-/* Opcode: IdxDelete P1 P2 P3 * *
-** Synopsis: key=r[P2@P3]
-**
-** The content of P3 registers starting at register P2 form
-** an unpacked index key. This opcode removes that entry from the 
-** index opened by cursor P1.
-*/
-case OP_IdxDelete: {
-  VdbeCursor *pC;
-  BtCursor *pCrsr;
-  int res;
-  UnpackedRecord r;
-
-  assert( pOp->p3>0 );
-  assert( pOp->p2>0 && pOp->p2+pOp->p3<=(p->nMem+1 - p->nCursor)+1 );
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  tdsqlite3VdbeIncrWriteCounter(p, pC);
-  pCrsr = pC->uc.pCursor;
-  assert( pCrsr!=0 );
-  assert( pOp->p5==0 );
-  r.pKeyInfo = pC->pKeyInfo;
-  r.nField = (u16)pOp->p3;
-  r.default_rc = 0;
-  r.aMem = &aMem[pOp->p2];
-  rc = tdsqlite3BtreeMovetoUnpacked(pCrsr, &r, 0, 0, &res);
-  if( rc ) goto abort_due_to_error;
-  if( res==0 ){
-    rc = tdsqlite3BtreeDelete(pCrsr, BTREE_AUXDELETE);
-    if( rc ) goto abort_due_to_error;
-  }
-  assert( pC->deferredMoveto==0 );
-  pC->cacheStatus = CACHE_STALE;
-  pC->seekResult = 0;
-  break;
-}
-
-/* Opcode: DeferredSeek P1 * P3 P4 *
-** Synopsis: Move P3 to P1.rowid if needed
-**
-** P1 is an open index cursor and P3 is a cursor on the corresponding
-** table.  This opcode does a deferred seek of the P3 table cursor
-** to the row that corresponds to the current row of P1.
-**
-** This is a deferred seek.  Nothing actually happens until
-** the cursor is used to read a record.  That way, if no reads
-** occur, no unnecessary I/O happens.
-**
-** P4 may be an array of integers (type P4_INTARRAY) containing
-** one entry for each column in the P3 table.  If array entry a(i)
-** is non-zero, then reading column a(i)-1 from cursor P3 is 
-** equivalent to performing the deferred seek and then reading column i 
-** from P1.  This information is stored in P3 and used to redirect
-** reads against P3 over to P1, thus possibly avoiding the need to
-** seek and read cursor P3.
-*/
-/* Opcode: IdxRowid P1 P2 * * *
-** Synopsis: r[P2]=rowid
-**
-** Write into register P2 an integer which is the last entry in the record at
-** the end of the index key pointed to by cursor P1.  This integer should be
-** the rowid of the table entry to which this index entry points.
-**
-** See also: Rowid, MakeRecord.
-*/
-case OP_DeferredSeek:
-case OP_IdxRowid: {           /* out2 */
-  VdbeCursor *pC;             /* The P1 index cursor */
-  VdbeCursor *pTabCur;        /* The P2 table cursor (OP_DeferredSeek only) */
-  i64 rowid;                  /* Rowid that P1 current points to */
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( pC->uc.pCursor!=0 );
-  assert( pC->isTable==0 );
-  assert( pC->deferredMoveto==0 );
-  assert( !pC->nullRow || pOp->opcode==OP_IdxRowid );
-
-  /* The IdxRowid and Seek opcodes are combined because of the commonality
-  ** of tdsqlite3VdbeCursorRestore() and tdsqlite3VdbeIdxRowid(). */
-  rc = tdsqlite3VdbeCursorRestore(pC);
-
-  /* tdsqlite3VbeCursorRestore() can only fail if the record has been deleted
-  ** out from under the cursor.  That will never happens for an IdxRowid
-  ** or Seek opcode */
-  if( NEVER(rc!=SQLITE_OK) ) goto abort_due_to_error;
-
-  if( !pC->nullRow ){
-    rowid = 0;  /* Not needed.  Only used to silence a warning. */
-    rc = tdsqlite3VdbeIdxRowid(db, pC->uc.pCursor, &rowid);
-    if( rc!=SQLITE_OK ){
-      goto abort_due_to_error;
-    }
-    if( pOp->opcode==OP_DeferredSeek ){
-      assert( pOp->p3>=0 && pOp->p3<p->nCursor );
-      pTabCur = p->apCsr[pOp->p3];
-      assert( pTabCur!=0 );
-      assert( pTabCur->eCurType==CURTYPE_BTREE );
-      assert( pTabCur->uc.pCursor!=0 );
-      assert( pTabCur->isTable );
-      pTabCur->nullRow = 0;
-      pTabCur->movetoTarget = rowid;
-      pTabCur->deferredMoveto = 1;
-      assert( pOp->p4type==P4_INTARRAY || pOp->p4.ai==0 );
-      pTabCur->aAltMap = pOp->p4.ai;
-      pTabCur->pAltCursor = pC;
-    }else{
-      pOut = out2Prerelease(p, pOp);
-      pOut->u.i = rowid;
-    }
-  }else{
-    assert( pOp->opcode==OP_IdxRowid );
-    tdsqlite3VdbeMemSetNull(&aMem[pOp->p2]);
-  }
-  break;
-}
-
-/* Opcode: FinishSeek P1 * * * *
-** 
-** If cursor P1 was previously moved via OP_DeferredSeek, complete that
-** seek operation now, without further delay.  If the cursor seek has
-** already occurred, this instruction is a no-op.
-*/
-case OP_FinishSeek: {
-  VdbeCursor *pC;             /* The P1 index cursor */
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  if( pC->deferredMoveto ){
-    rc = tdsqlite3VdbeFinishMoveto(pC);
-    if( rc ) goto abort_due_to_error;
-  }
-  break;
-}
-
-/* Opcode: IdxGE P1 P2 P3 P4 P5
-** Synopsis: key=r[P3@P4]
-**
-** The P4 register values beginning with P3 form an unpacked index 
-** key that omits the PRIMARY KEY.  Compare this key value against the index 
-** that P1 is currently pointing to, ignoring the PRIMARY KEY or ROWID 
-** fields at the end.
-**
-** If the P1 index entry is greater than or equal to the key value
-** then jump to P2.  Otherwise fall through to the next instruction.
-*/
-/* Opcode: IdxGT P1 P2 P3 P4 P5
-** Synopsis: key=r[P3@P4]
-**
-** The P4 register values beginning with P3 form an unpacked index 
-** key that omits the PRIMARY KEY.  Compare this key value against the index 
-** that P1 is currently pointing to, ignoring the PRIMARY KEY or ROWID 
-** fields at the end.
-**
-** If the P1 index entry is greater than the key value
-** then jump to P2.  Otherwise fall through to the next instruction.
-*/
-/* Opcode: IdxLT P1 P2 P3 P4 P5
-** Synopsis: key=r[P3@P4]
-**
-** The P4 register values beginning with P3 form an unpacked index 
-** key that omits the PRIMARY KEY or ROWID.  Compare this key value against
-** the index that P1 is currently pointing to, ignoring the PRIMARY KEY or
-** ROWID on the P1 index.
-**
-** If the P1 index entry is less than the key value then jump to P2.
-** Otherwise fall through to the next instruction.
-*/
-/* Opcode: IdxLE P1 P2 P3 P4 P5
-** Synopsis: key=r[P3@P4]
-**
-** The P4 register values beginning with P3 form an unpacked index 
-** key that omits the PRIMARY KEY or ROWID.  Compare this key value against
-** the index that P1 is currently pointing to, ignoring the PRIMARY KEY or
-** ROWID on the P1 index.
-**
-** If the P1 index entry is less than or equal to the key value then jump
-** to P2. Otherwise fall through to the next instruction.
-*/
-case OP_IdxLE:          /* jump */
-case OP_IdxGT:          /* jump */
-case OP_IdxLT:          /* jump */
-case OP_IdxGE:  {       /* jump */
-  VdbeCursor *pC;
-  int res;
-  UnpackedRecord r;
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->isOrdered );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  assert( pC->uc.pCursor!=0);
-  assert( pC->deferredMoveto==0 );
-  assert( pOp->p5==0 || pOp->p5==1 );
-  assert( pOp->p4type==P4_INT32 );
-  r.pKeyInfo = pC->pKeyInfo;
-  r.nField = (u16)pOp->p4.i;
-  if( pOp->opcode<OP_IdxLT ){
-    assert( pOp->opcode==OP_IdxLE || pOp->opcode==OP_IdxGT );
-    r.default_rc = -1;
-  }else{
-    assert( pOp->opcode==OP_IdxGE || pOp->opcode==OP_IdxLT );
-    r.default_rc = 0;
-  }
-  r.aMem = &aMem[pOp->p3];
-#ifdef SQLITE_DEBUG
-  {
-    int i;
-    for(i=0; i<r.nField; i++){
-      assert( memIsValid(&r.aMem[i]) );
-      REGISTER_TRACE(pOp->p3+i, &aMem[pOp->p3+i]);
-    }
-  }
-#endif
-  res = 0;  /* Not needed.  Only used to silence a warning. */
-  rc = tdsqlite3VdbeIdxKeyCompare(db, pC, &r, &res);
-  assert( (OP_IdxLE&1)==(OP_IdxLT&1) && (OP_IdxGE&1)==(OP_IdxGT&1) );
-  if( (pOp->opcode&1)==(OP_IdxLT&1) ){
-    assert( pOp->opcode==OP_IdxLE || pOp->opcode==OP_IdxLT );
-    res = -res;
-  }else{
-    assert( pOp->opcode==OP_IdxGE || pOp->opcode==OP_IdxGT );
-    res++;
-  }
-  VdbeBranchTaken(res>0,2);
-  if( rc ) goto abort_due_to_error;
-  if( res>0 ) goto jump_to_p2;
-  break;
-}
-
-/* Opcode: Destroy P1 P2 P3 * *
-**
-** Delete an entire database table or index whose root page in the database
-** file is given by P1.
-**
-** The table being destroyed is in the main database file if P3==0.  If
-** P3==1 then the table to be clear is in the auxiliary database file
-** that is used to store tables create using CREATE TEMPORARY TABLE.
-**
-** If AUTOVACUUM is enabled then it is possible that another root page
-** might be moved into the newly deleted root page in order to keep all
-** root pages contiguous at the beginning of the database.  The former
-** value of the root page that moved - its value before the move occurred -
-** is stored in register P2. If no page movement was required (because the
-** table being dropped was already the last one in the database) then a 
-** zero is stored in register P2.  If AUTOVACUUM is disabled then a zero 
-** is stored in register P2.
-**
-** This opcode throws an error if there are any active reader VMs when
-** it is invoked. This is done to avoid the difficulty associated with 
-** updating existing cursors when a root page is moved in an AUTOVACUUM 
-** database. This error is thrown even if the database is not an AUTOVACUUM 
-** db in order to avoid introducing an incompatibility between autovacuum 
-** and non-autovacuum modes.
-**
-** See also: Clear
-*/
-case OP_Destroy: {     /* out2 */
-  int iMoved;
-  int iDb;
-
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  assert( p->readOnly==0 );
-  assert( pOp->p1>1 );
-  pOut = out2Prerelease(p, pOp);
-  pOut->flags = MEM_Null;
-  if( db->nVdbeRead > db->nVDestroy+1 ){
-    rc = SQLITE_LOCKED;
-    p->errorAction = OE_Abort;
-    goto abort_due_to_error;
-  }else{
-    iDb = pOp->p3;
-    assert( DbMaskTest(p->btreeMask, iDb) );
-    iMoved = 0;  /* Not needed.  Only to silence a warning. */
-    rc = tdsqlite3BtreeDropTable(db->aDb[iDb].pBt, pOp->p1, &iMoved);
-    pOut->flags = MEM_Int;
-    pOut->u.i = iMoved;
-    if( rc ) goto abort_due_to_error;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( iMoved!=0 ){
-      tdsqlite3RootPageMoved(db, iDb, iMoved, pOp->p1);
-      /* All OP_Destroy operations occur on the same btree */
-      assert( resetSchemaOnFault==0 || resetSchemaOnFault==iDb+1 );
-      resetSchemaOnFault = iDb+1;
-    }
-#endif
-  }
-  break;
-}
-
-/* Opcode: Clear P1 P2 P3
-**
-** Delete all contents of the database table or index whose root page
-** in the database file is given by P1.  But, unlike Destroy, do not
-** remove the table or index from the database file.
-**
-** The table being clear is in the main database file if P2==0.  If
-** P2==1 then the table to be clear is in the auxiliary database file
-** that is used to store tables create using CREATE TEMPORARY TABLE.
-**
-** If the P3 value is non-zero, then the table referred to must be an
-** intkey table (an SQL table, not an index). In this case the row change 
-** count is incremented by the number of rows in the table being cleared. 
-** If P3 is greater than zero, then the value stored in register P3 is
-** also incremented by the number of rows in the table being cleared.
-**
-** See also: Destroy
-*/
-case OP_Clear: {
-  int nChange;
- 
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  nChange = 0;
-  assert( p->readOnly==0 );
-  assert( DbMaskTest(p->btreeMask, pOp->p2) );
-  rc = tdsqlite3BtreeClearTable(
-      db->aDb[pOp->p2].pBt, pOp->p1, (pOp->p3 ? &nChange : 0)
-  );
-  if( pOp->p3 ){
-    p->nChange += nChange;
-    if( pOp->p3>0 ){
-      assert( memIsValid(&aMem[pOp->p3]) );
-      memAboutToChange(p, &aMem[pOp->p3]);
-      aMem[pOp->p3].u.i += nChange;
-    }
-  }
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-
-/* Opcode: ResetSorter P1 * * * *
-**
-** Delete all contents from the ephemeral table or sorter
-** that is open on cursor P1.
-**
-** This opcode only works for cursors used for sorting and
-** opened with OP_OpenEphemeral or OP_SorterOpen.
-*/
-case OP_ResetSorter: {
-  VdbeCursor *pC;
- 
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  if( isSorter(pC) ){
-    tdsqlite3VdbeSorterReset(db, pC->uc.pSorter);
-  }else{
-    assert( pC->eCurType==CURTYPE_BTREE );
-    assert( pC->isEphemeral );
-    rc = tdsqlite3BtreeClearTableOfCursor(pC->uc.pCursor);
-    if( rc ) goto abort_due_to_error;
-  }
-  break;
-}
-
-/* Opcode: CreateBtree P1 P2 P3 * *
-** Synopsis: r[P2]=root iDb=P1 flags=P3
-**
-** Allocate a new b-tree in the main database file if P1==0 or in the
-** TEMP database file if P1==1 or in an attached database if
-** P1>1.  The P3 argument must be 1 (BTREE_INTKEY) for a rowid table
-** it must be 2 (BTREE_BLOBKEY) for an index or WITHOUT ROWID table.
-** The root page number of the new b-tree is stored in register P2.
-*/
-case OP_CreateBtree: {          /* out2 */
-  int pgno;
-  Db *pDb;
-
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  pOut = out2Prerelease(p, pOp);
-  pgno = 0;
-  assert( pOp->p3==BTREE_INTKEY || pOp->p3==BTREE_BLOBKEY );
-  assert( pOp->p1>=0 && pOp->p1<db->nDb );
-  assert( DbMaskTest(p->btreeMask, pOp->p1) );
-  assert( p->readOnly==0 );
-  pDb = &db->aDb[pOp->p1];
-  assert( pDb->pBt!=0 );
-  rc = tdsqlite3BtreeCreateTable(pDb->pBt, &pgno, pOp->p3);
-  if( rc ) goto abort_due_to_error;
-  pOut->u.i = pgno;
-  break;
-}
-
-/* Opcode: SqlExec * * * P4 *
-**
-** Run the SQL statement or statements specified in the P4 string.
-*/
-case OP_SqlExec: {
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  db->nSqlExec++;
-  rc = tdsqlite3_exec(db, pOp->p4.z, 0, 0, 0);
-  db->nSqlExec--;
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-
-/* Opcode: ParseSchema P1 * * P4 *
-**
-** Read and parse all entries from the SQLITE_MASTER table of database P1
-** that match the WHERE clause P4.  If P4 is a NULL pointer, then the
-** entire schema for P1 is reparsed.
-**
-** This opcode invokes the parser to create a new virtual machine,
-** then runs the new virtual machine.  It is thus a re-entrant opcode.
-*/
-case OP_ParseSchema: {
-  int iDb;
-  const char *zMaster;
-  char *zSql;
-  InitData initData;
-
-  /* Any prepared statement that invokes this opcode will hold mutexes
-  ** on every btree.  This is a prerequisite for invoking 
-  ** tdsqlite3InitCallback().
-  */
-#ifdef SQLITE_DEBUG
-  for(iDb=0; iDb<db->nDb; iDb++){
-    assert( iDb==1 || tdsqlite3BtreeHoldsMutex(db->aDb[iDb].pBt) );
-  }
-#endif
-
-  iDb = pOp->p1;
-  assert( iDb>=0 && iDb<db->nDb );
-  assert( DbHasProperty(db, iDb, DB_SchemaLoaded) );
-
-#ifndef SQLITE_OMIT_ALTERTABLE
-  if( pOp->p4.z==0 ){
-    tdsqlite3SchemaClear(db->aDb[iDb].pSchema);
-    db->mDbFlags &= ~DBFLAG_SchemaKnownOk;
-    rc = tdsqlite3InitOne(db, iDb, &p->zErrMsg, INITFLAG_AlterTable);
-    db->mDbFlags |= DBFLAG_SchemaChange;
-    p->expired = 0;
-  }else
-#endif
-  {
-    zMaster = MASTER_NAME;
-    initData.db = db;
-    initData.iDb = iDb;
-    initData.pzErrMsg = &p->zErrMsg;
-    initData.mInitFlags = 0;
-    zSql = tdsqlite3MPrintf(db,
-       "SELECT*FROM\"%w\".%s WHERE %s ORDER BY rowid",
-       db->aDb[iDb].zDbSName, zMaster, pOp->p4.z);
-    if( zSql==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-    }else{
-      assert( db->init.busy==0 );
-      db->init.busy = 1;
-      initData.rc = SQLITE_OK;
-      initData.nInitRow = 0;
-      assert( !db->mallocFailed );
-      rc = tdsqlite3_exec(db, zSql, tdsqlite3InitCallback, &initData, 0);
-      if( rc==SQLITE_OK ) rc = initData.rc;
-      if( rc==SQLITE_OK && initData.nInitRow==0 ){
-        /* The OP_ParseSchema opcode with a non-NULL P4 argument should parse
-        ** at least one SQL statement. Any less than that indicates that
-        ** the sqlite_master table is corrupt. */
-        rc = SQLITE_CORRUPT_BKPT;
-      }
-      tdsqlite3DbFreeNN(db, zSql);
-      db->init.busy = 0;
-    }
-  }
-  if( rc ){
-    tdsqlite3ResetAllSchemasOfConnection(db);
-    if( rc==SQLITE_NOMEM ){
-      goto no_mem;
-    }
-    goto abort_due_to_error;
-  }
-  break;  
-}
-
-#if !defined(SQLITE_OMIT_ANALYZE)
-/* Opcode: LoadAnalysis P1 * * * *
-**
-** Read the sqlite_stat1 table for database P1 and load the content
-** of that table into the internal index hash table.  This will cause
-** the analysis to be used when preparing all subsequent queries.
-*/
-case OP_LoadAnalysis: {
-  assert( pOp->p1>=0 && pOp->p1<db->nDb );
-  rc = tdsqlite3AnalysisLoad(db, pOp->p1);
-  if( rc ) goto abort_due_to_error;
-  break;  
-}
-#endif /* !defined(SQLITE_OMIT_ANALYZE) */
-
-/* Opcode: DropTable P1 * * P4 *
-**
-** Remove the internal (in-memory) data structures that describe
-** the table named P4 in database P1.  This is called after a table
-** is dropped from disk (using the Destroy opcode) in order to keep 
-** the internal representation of the
-** schema consistent with what is on disk.
-*/
-case OP_DropTable: {
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  tdsqlite3UnlinkAndDeleteTable(db, pOp->p1, pOp->p4.z);
-  break;
-}
-
-/* Opcode: DropIndex P1 * * P4 *
-**
-** Remove the internal (in-memory) data structures that describe
-** the index named P4 in database P1.  This is called after an index
-** is dropped from disk (using the Destroy opcode)
-** in order to keep the internal representation of the
-** schema consistent with what is on disk.
-*/
-case OP_DropIndex: {
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  tdsqlite3UnlinkAndDeleteIndex(db, pOp->p1, pOp->p4.z);
-  break;
-}
-
-/* Opcode: DropTrigger P1 * * P4 *
-**
-** Remove the internal (in-memory) data structures that describe
-** the trigger named P4 in database P1.  This is called after a trigger
-** is dropped from disk (using the Destroy opcode) in order to keep 
-** the internal representation of the
-** schema consistent with what is on disk.
-*/
-case OP_DropTrigger: {
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  tdsqlite3UnlinkAndDeleteTrigger(db, pOp->p1, pOp->p4.z);
-  break;
-}
-
-
-#ifndef SQLITE_OMIT_INTEGRITY_CHECK
-/* Opcode: IntegrityCk P1 P2 P3 P4 P5
-**
-** Do an analysis of the currently open database.  Store in
-** register P1 the text of an error message describing any problems.
-** If no problems are found, store a NULL in register P1.
-**
-** The register P3 contains one less than the maximum number of allowed errors.
-** At most reg(P3) errors will be reported.
-** In other words, the analysis stops as soon as reg(P1) errors are 
-** seen.  Reg(P1) is updated with the number of errors remaining.
-**
-** The root page numbers of all tables in the database are integers
-** stored in P4_INTARRAY argument.
-**
-** If P5 is not zero, the check is done on the auxiliary database
-** file, not the main database file.
-**
-** This opcode is used to implement the integrity_check pragma.
-*/
-case OP_IntegrityCk: {
-  int nRoot;      /* Number of tables to check.  (Number of root pages.) */
-  int *aRoot;     /* Array of rootpage numbers for tables to be checked */
-  int nErr;       /* Number of errors reported */
-  char *z;        /* Text of the error report */
-  Mem *pnErr;     /* Register keeping track of errors remaining */
-
-  assert( p->bIsReader );
-  nRoot = pOp->p2;
-  aRoot = pOp->p4.ai;
-  assert( nRoot>0 );
-  assert( aRoot[0]==nRoot );
-  assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) );
-  pnErr = &aMem[pOp->p3];
-  assert( (pnErr->flags & MEM_Int)!=0 );
-  assert( (pnErr->flags & (MEM_Str|MEM_Blob))==0 );
-  pIn1 = &aMem[pOp->p1];
-  assert( pOp->p5<db->nDb );
-  assert( DbMaskTest(p->btreeMask, pOp->p5) );
-  z = tdsqlite3BtreeIntegrityCheck(db, db->aDb[pOp->p5].pBt, &aRoot[1], nRoot,
-                                 (int)pnErr->u.i+1, &nErr);
-  tdsqlite3VdbeMemSetNull(pIn1);
-  if( nErr==0 ){
-    assert( z==0 );
-  }else if( z==0 ){
-    goto no_mem;
-  }else{
-    pnErr->u.i -= nErr-1;
-    tdsqlite3VdbeMemSetStr(pIn1, z, -1, SQLITE_UTF8, tdsqlite3_free);
-  }
-  UPDATE_MAX_BLOBSIZE(pIn1);
-  tdsqlite3VdbeChangeEncoding(pIn1, encoding);
-  goto check_for_interrupt;
-}
-#endif /* SQLITE_OMIT_INTEGRITY_CHECK */
-
-/* Opcode: RowSetAdd P1 P2 * * *
-** Synopsis: rowset(P1)=r[P2]
-**
-** Insert the integer value held by register P2 into a RowSet object
-** held in register P1.
-**
-** An assertion fails if P2 is not an integer.
-*/
-case OP_RowSetAdd: {       /* in1, in2 */
-  pIn1 = &aMem[pOp->p1];
-  pIn2 = &aMem[pOp->p2];
-  assert( (pIn2->flags & MEM_Int)!=0 );
-  if( (pIn1->flags & MEM_Blob)==0 ){
-    if( tdsqlite3VdbeMemSetRowSet(pIn1) ) goto no_mem;
-  }
-  assert( tdsqlite3VdbeMemIsRowSet(pIn1) );
-  tdsqlite3RowSetInsert((RowSet*)pIn1->z, pIn2->u.i);
-  break;
-}
-
-/* Opcode: RowSetRead P1 P2 P3 * *
-** Synopsis: r[P3]=rowset(P1)
-**
-** Extract the smallest value from the RowSet object in P1
-** and put that value into register P3.
-** Or, if RowSet object P1 is initially empty, leave P3
-** unchanged and jump to instruction P2.
-*/
-case OP_RowSetRead: {       /* jump, in1, out3 */
-  i64 val;
-
-  pIn1 = &aMem[pOp->p1];
-  assert( (pIn1->flags & MEM_Blob)==0 || tdsqlite3VdbeMemIsRowSet(pIn1) );
-  if( (pIn1->flags & MEM_Blob)==0 
-   || tdsqlite3RowSetNext((RowSet*)pIn1->z, &val)==0
-  ){
-    /* The boolean index is empty */
-    tdsqlite3VdbeMemSetNull(pIn1);
-    VdbeBranchTaken(1,2);
-    goto jump_to_p2_and_check_for_interrupt;
-  }else{
-    /* A value was pulled from the index */
-    VdbeBranchTaken(0,2);
-    tdsqlite3VdbeMemSetInt64(&aMem[pOp->p3], val);
-  }
-  goto check_for_interrupt;
-}
-
-/* Opcode: RowSetTest P1 P2 P3 P4
-** Synopsis: if r[P3] in rowset(P1) goto P2
-**
-** Register P3 is assumed to hold a 64-bit integer value. If register P1
-** contains a RowSet object and that RowSet object contains
-** the value held in P3, jump to register P2. Otherwise, insert the
-** integer in P3 into the RowSet and continue on to the
-** next opcode.
-**
-** The RowSet object is optimized for the case where sets of integers
-** are inserted in distinct phases, which each set contains no duplicates.
-** Each set is identified by a unique P4 value. The first set
-** must have P4==0, the final set must have P4==-1, and for all other sets
-** must have P4>0.
-**
-** This allows optimizations: (a) when P4==0 there is no need to test
-** the RowSet object for P3, as it is guaranteed not to contain it,
-** (b) when P4==-1 there is no need to insert the value, as it will
-** never be tested for, and (c) when a value that is part of set X is
-** inserted, there is no need to search to see if the same value was
-** previously inserted as part of set X (only if it was previously
-** inserted as part of some other set).
-*/
-case OP_RowSetTest: {                     /* jump, in1, in3 */
-  int iSet;
-  int exists;
-
-  pIn1 = &aMem[pOp->p1];
-  pIn3 = &aMem[pOp->p3];
-  iSet = pOp->p4.i;
-  assert( pIn3->flags&MEM_Int );
-
-  /* If there is anything other than a rowset object in memory cell P1,
-  ** delete it now and initialize P1 with an empty rowset
-  */
-  if( (pIn1->flags & MEM_Blob)==0 ){
-    if( tdsqlite3VdbeMemSetRowSet(pIn1) ) goto no_mem;
-  }
-  assert( tdsqlite3VdbeMemIsRowSet(pIn1) );
-  assert( pOp->p4type==P4_INT32 );
-  assert( iSet==-1 || iSet>=0 );
-  if( iSet ){
-    exists = tdsqlite3RowSetTest((RowSet*)pIn1->z, iSet, pIn3->u.i);
-    VdbeBranchTaken(exists!=0,2);
-    if( exists ) goto jump_to_p2;
-  }
-  if( iSet>=0 ){
-    tdsqlite3RowSetInsert((RowSet*)pIn1->z, pIn3->u.i);
-  }
-  break;
-}
-
-
-#ifndef SQLITE_OMIT_TRIGGER
-
-/* Opcode: Program P1 P2 P3 P4 P5
-**
-** Execute the trigger program passed as P4 (type P4_SUBPROGRAM). 
-**
-** P1 contains the address of the memory cell that contains the first memory 
-** cell in an array of values used as arguments to the sub-program. P2 
-** contains the address to jump to if the sub-program throws an IGNORE 
-** exception using the RAISE() function. Register P3 contains the address 
-** of a memory cell in this (the parent) VM that is used to allocate the 
-** memory required by the sub-vdbe at runtime.
-**
-** P4 is a pointer to the VM containing the trigger program.
-**
-** If P5 is non-zero, then recursive program invocation is enabled.
-*/
-case OP_Program: {        /* jump */
-  int nMem;               /* Number of memory registers for sub-program */
-  int nByte;              /* Bytes of runtime space required for sub-program */
-  Mem *pRt;               /* Register to allocate runtime space */
-  Mem *pMem;              /* Used to iterate through memory cells */
-  Mem *pEnd;              /* Last memory cell in new array */
-  VdbeFrame *pFrame;      /* New vdbe frame to execute in */
-  SubProgram *pProgram;   /* Sub-program to execute */
-  void *t;                /* Token identifying trigger */
-
-  pProgram = pOp->p4.pProgram;
-  pRt = &aMem[pOp->p3];
-  assert( pProgram->nOp>0 );
-  
-  /* If the p5 flag is clear, then recursive invocation of triggers is 
-  ** disabled for backwards compatibility (p5 is set if this sub-program
-  ** is really a trigger, not a foreign key action, and the flag set
-  ** and cleared by the "PRAGMA recursive_triggers" command is clear).
-  ** 
-  ** It is recursive invocation of triggers, at the SQL level, that is 
-  ** disabled. In some cases a single trigger may generate more than one 
-  ** SubProgram (if the trigger may be executed with more than one different 
-  ** ON CONFLICT algorithm). SubProgram structures associated with a
-  ** single trigger all have the same value for the SubProgram.token 
-  ** variable.  */
-  if( pOp->p5 ){
-    t = pProgram->token;
-    for(pFrame=p->pFrame; pFrame && pFrame->token!=t; pFrame=pFrame->pParent);
-    if( pFrame ) break;
-  }
-
-  if( p->nFrame>=db->aLimit[SQLITE_LIMIT_TRIGGER_DEPTH] ){
-    rc = SQLITE_ERROR;
-    tdsqlite3VdbeError(p, "too many levels of trigger recursion");
-    goto abort_due_to_error;
-  }
-
-  /* Register pRt is used to store the memory required to save the state
-  ** of the current program, and the memory required at runtime to execute
-  ** the trigger program. If this trigger has been fired before, then pRt 
-  ** is already allocated. Otherwise, it must be initialized.  */
-  if( (pRt->flags&MEM_Blob)==0 ){
-    /* SubProgram.nMem is set to the number of memory cells used by the 
-    ** program stored in SubProgram.aOp. As well as these, one memory
-    ** cell is required for each cursor used by the program. Set local
-    ** variable nMem (and later, VdbeFrame.nChildMem) to this value.
-    */
-    nMem = pProgram->nMem + pProgram->nCsr;
-    assert( nMem>0 );
-    if( pProgram->nCsr==0 ) nMem++;
-    nByte = ROUND8(sizeof(VdbeFrame))
-              + nMem * sizeof(Mem)
-              + pProgram->nCsr * sizeof(VdbeCursor*)
-              + (pProgram->nOp + 7)/8;
-    pFrame = tdsqlite3DbMallocZero(db, nByte);
-    if( !pFrame ){
-      goto no_mem;
-    }
-    tdsqlite3VdbeMemRelease(pRt);
-    pRt->flags = MEM_Blob|MEM_Dyn;
-    pRt->z = (char*)pFrame;
-    pRt->n = nByte;
-    pRt->xDel = tdsqlite3VdbeFrameMemDel;
-
-    pFrame->v = p;
-    pFrame->nChildMem = nMem;
-    pFrame->nChildCsr = pProgram->nCsr;
-    pFrame->pc = (int)(pOp - aOp);
-    pFrame->aMem = p->aMem;
-    pFrame->nMem = p->nMem;
-    pFrame->apCsr = p->apCsr;
-    pFrame->nCursor = p->nCursor;
-    pFrame->aOp = p->aOp;
-    pFrame->nOp = p->nOp;
-    pFrame->token = pProgram->token;
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-    pFrame->anExec = p->anExec;
-#endif
-#ifdef SQLITE_DEBUG
-    pFrame->iFrameMagic = SQLITE_FRAME_MAGIC;
-#endif
-
-    pEnd = &VdbeFrameMem(pFrame)[pFrame->nChildMem];
-    for(pMem=VdbeFrameMem(pFrame); pMem!=pEnd; pMem++){
-      pMem->flags = MEM_Undefined;
-      pMem->db = db;
-    }
-  }else{
-    pFrame = (VdbeFrame*)pRt->z;
-    assert( pRt->xDel==tdsqlite3VdbeFrameMemDel );
-    assert( pProgram->nMem+pProgram->nCsr==pFrame->nChildMem 
-        || (pProgram->nCsr==0 && pProgram->nMem+1==pFrame->nChildMem) );
-    assert( pProgram->nCsr==pFrame->nChildCsr );
-    assert( (int)(pOp - aOp)==pFrame->pc );
-  }
-
-  p->nFrame++;
-  pFrame->pParent = p->pFrame;
-  pFrame->lastRowid = db->lastRowid;
-  pFrame->nChange = p->nChange;
-  pFrame->nDbChange = p->db->nChange;
-  assert( pFrame->pAuxData==0 );
-  pFrame->pAuxData = p->pAuxData;
-  p->pAuxData = 0;
-  p->nChange = 0;
-  p->pFrame = pFrame;
-  p->aMem = aMem = VdbeFrameMem(pFrame);
-  p->nMem = pFrame->nChildMem;
-  p->nCursor = (u16)pFrame->nChildCsr;
-  p->apCsr = (VdbeCursor **)&aMem[p->nMem];
-  pFrame->aOnce = (u8*)&p->apCsr[pProgram->nCsr];
-  memset(pFrame->aOnce, 0, (pProgram->nOp + 7)/8);
-  p->aOp = aOp = pProgram->aOp;
-  p->nOp = pProgram->nOp;
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-  p->anExec = 0;
-#endif
-#ifdef SQLITE_DEBUG
-  /* Verify that second and subsequent executions of the same trigger do not
-  ** try to reuse register values from the first use. */
-  {
-    int i;
-    for(i=0; i<p->nMem; i++){
-      aMem[i].pScopyFrom = 0;  /* Prevent false-positive AboutToChange() errs */
-      aMem[i].flags |= MEM_Undefined; /* Cause a fault if this reg is reused */
-    }
-  }
-#endif
-  pOp = &aOp[-1];
-  goto check_for_interrupt;
-}
-
-/* Opcode: Param P1 P2 * * *
-**
-** This opcode is only ever present in sub-programs called via the 
-** OP_Program instruction. Copy a value currently stored in a memory 
-** cell of the calling (parent) frame to cell P2 in the current frames 
-** address space. This is used by trigger programs to access the new.* 
-** and old.* values.
-**
-** The address of the cell in the parent frame is determined by adding
-** the value of the P1 argument to the value of the P1 argument to the
-** calling OP_Program instruction.
-*/
-case OP_Param: {           /* out2 */
-  VdbeFrame *pFrame;
-  Mem *pIn;
-  pOut = out2Prerelease(p, pOp);
-  pFrame = p->pFrame;
-  pIn = &pFrame->aMem[pOp->p1 + pFrame->aOp[pFrame->pc].p1];   
-  tdsqlite3VdbeMemShallowCopy(pOut, pIn, MEM_Ephem);
-  break;
-}
-
-#endif /* #ifndef SQLITE_OMIT_TRIGGER */
-
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-/* Opcode: FkCounter P1 P2 * * *
-** Synopsis: fkctr[P1]+=P2
-**
-** Increment a "constraint counter" by P2 (P2 may be negative or positive).
-** If P1 is non-zero, the database constraint counter is incremented 
-** (deferred foreign key constraints). Otherwise, if P1 is zero, the 
-** statement counter is incremented (immediate foreign key constraints).
-*/
-case OP_FkCounter: {
-  if( db->flags & SQLITE_DeferFKs ){
-    db->nDeferredImmCons += pOp->p2;
-  }else if( pOp->p1 ){
-    db->nDeferredCons += pOp->p2;
-  }else{
-    p->nFkConstraint += pOp->p2;
-  }
-  break;
-}
-
-/* Opcode: FkIfZero P1 P2 * * *
-** Synopsis: if fkctr[P1]==0 goto P2
-**
-** This opcode tests if a foreign key constraint-counter is currently zero.
-** If so, jump to instruction P2. Otherwise, fall through to the next 
-** instruction.
-**
-** If P1 is non-zero, then the jump is taken if the database constraint-counter
-** is zero (the one that counts deferred constraint violations). If P1 is
-** zero, the jump is taken if the statement constraint-counter is zero
-** (immediate foreign key constraint violations).
-*/
-case OP_FkIfZero: {         /* jump */
-  if( pOp->p1 ){
-    VdbeBranchTaken(db->nDeferredCons==0 && db->nDeferredImmCons==0, 2);
-    if( db->nDeferredCons==0 && db->nDeferredImmCons==0 ) goto jump_to_p2;
-  }else{
-    VdbeBranchTaken(p->nFkConstraint==0 && db->nDeferredImmCons==0, 2);
-    if( p->nFkConstraint==0 && db->nDeferredImmCons==0 ) goto jump_to_p2;
-  }
-  break;
-}
-#endif /* #ifndef SQLITE_OMIT_FOREIGN_KEY */
-
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-/* Opcode: MemMax P1 P2 * * *
-** Synopsis: r[P1]=max(r[P1],r[P2])
-**
-** P1 is a register in the root frame of this VM (the root frame is
-** different from the current frame if this instruction is being executed
-** within a sub-program). Set the value of register P1 to the maximum of 
-** its current value and the value in register P2.
-**
-** This instruction throws an error if the memory cell is not initially
-** an integer.
-*/
-case OP_MemMax: {        /* in2 */
-  VdbeFrame *pFrame;
-  if( p->pFrame ){
-    for(pFrame=p->pFrame; pFrame->pParent; pFrame=pFrame->pParent);
-    pIn1 = &pFrame->aMem[pOp->p1];
-  }else{
-    pIn1 = &aMem[pOp->p1];
-  }
-  assert( memIsValid(pIn1) );
-  tdsqlite3VdbeMemIntegerify(pIn1);
-  pIn2 = &aMem[pOp->p2];
-  tdsqlite3VdbeMemIntegerify(pIn2);
-  if( pIn1->u.i<pIn2->u.i){
-    pIn1->u.i = pIn2->u.i;
-  }
-  break;
-}
-#endif /* SQLITE_OMIT_AUTOINCREMENT */
-
-/* Opcode: IfPos P1 P2 P3 * *
-** Synopsis: if r[P1]>0 then r[P1]-=P3, goto P2
-**
-** Register P1 must contain an integer.
-** If the value of register P1 is 1 or greater, subtract P3 from the
-** value in P1 and jump to P2.
-**
-** If the initial value of register P1 is less than 1, then the
-** value is unchanged and control passes through to the next instruction.
-*/
-case OP_IfPos: {        /* jump, in1 */
-  pIn1 = &aMem[pOp->p1];
-  assert( pIn1->flags&MEM_Int );
-  VdbeBranchTaken( pIn1->u.i>0, 2);
-  if( pIn1->u.i>0 ){
-    pIn1->u.i -= pOp->p3;
-    goto jump_to_p2;
-  }
-  break;
-}
-
-/* Opcode: OffsetLimit P1 P2 P3 * *
-** Synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1)
-**
-** This opcode performs a commonly used computation associated with
-** LIMIT and OFFSET process.  r[P1] holds the limit counter.  r[P3]
-** holds the offset counter.  The opcode computes the combined value
-** of the LIMIT and OFFSET and stores that value in r[P2].  The r[P2]
-** value computed is the total number of rows that will need to be
-** visited in order to complete the query.
-**
-** If r[P3] is zero or negative, that means there is no OFFSET
-** and r[P2] is set to be the value of the LIMIT, r[P1].
-**
-** if r[P1] is zero or negative, that means there is no LIMIT
-** and r[P2] is set to -1. 
-**
-** Otherwise, r[P2] is set to the sum of r[P1] and r[P3].
-*/
-case OP_OffsetLimit: {    /* in1, out2, in3 */
-  i64 x;
-  pIn1 = &aMem[pOp->p1];
-  pIn3 = &aMem[pOp->p3];
-  pOut = out2Prerelease(p, pOp);
-  assert( pIn1->flags & MEM_Int );
-  assert( pIn3->flags & MEM_Int );
-  x = pIn1->u.i;
-  if( x<=0 || tdsqlite3AddInt64(&x, pIn3->u.i>0?pIn3->u.i:0) ){
-    /* If the LIMIT is less than or equal to zero, loop forever.  This
-    ** is documented.  But also, if the LIMIT+OFFSET exceeds 2^63 then
-    ** also loop forever.  This is undocumented.  In fact, one could argue
-    ** that the loop should terminate.  But assuming 1 billion iterations
-    ** per second (far exceeding the capabilities of any current hardware)
-    ** it would take nearly 300 years to actually reach the limit.  So
-    ** looping forever is a reasonable approximation. */
-    pOut->u.i = -1;
-  }else{
-    pOut->u.i = x;
-  }
-  break;
-}
-
-/* Opcode: IfNotZero P1 P2 * * *
-** Synopsis: if r[P1]!=0 then r[P1]--, goto P2
-**
-** Register P1 must contain an integer.  If the content of register P1 is
-** initially greater than zero, then decrement the value in register P1.
-** If it is non-zero (negative or positive) and then also jump to P2.  
-** If register P1 is initially zero, leave it unchanged and fall through.
-*/
-case OP_IfNotZero: {        /* jump, in1 */
-  pIn1 = &aMem[pOp->p1];
-  assert( pIn1->flags&MEM_Int );
-  VdbeBranchTaken(pIn1->u.i<0, 2);
-  if( pIn1->u.i ){
-     if( pIn1->u.i>0 ) pIn1->u.i--;
-     goto jump_to_p2;
-  }
-  break;
-}
-
-/* Opcode: DecrJumpZero P1 P2 * * *
-** Synopsis: if (--r[P1])==0 goto P2
-**
-** Register P1 must hold an integer.  Decrement the value in P1
-** and jump to P2 if the new value is exactly zero.
-*/
-case OP_DecrJumpZero: {      /* jump, in1 */
-  pIn1 = &aMem[pOp->p1];
-  assert( pIn1->flags&MEM_Int );
-  if( pIn1->u.i>SMALLEST_INT64 ) pIn1->u.i--;
-  VdbeBranchTaken(pIn1->u.i==0, 2);
-  if( pIn1->u.i==0 ) goto jump_to_p2;
-  break;
-}
-
-
-/* Opcode: AggStep * P2 P3 P4 P5
-** Synopsis: accum=r[P3] step(r[P2@P5])
-**
-** Execute the xStep function for an aggregate.
-** The function has P5 arguments.  P4 is a pointer to the 
-** FuncDef structure that specifies the function.  Register P3 is the
-** accumulator.
-**
-** The P5 arguments are taken from register P2 and its
-** successors.
-*/
-/* Opcode: AggInverse * P2 P3 P4 P5
-** Synopsis: accum=r[P3] inverse(r[P2@P5])
-**
-** Execute the xInverse function for an aggregate.
-** The function has P5 arguments.  P4 is a pointer to the 
-** FuncDef structure that specifies the function.  Register P3 is the
-** accumulator.
-**
-** The P5 arguments are taken from register P2 and its
-** successors.
-*/
-/* Opcode: AggStep1 P1 P2 P3 P4 P5
-** Synopsis: accum=r[P3] step(r[P2@P5])
-**
-** Execute the xStep (if P1==0) or xInverse (if P1!=0) function for an
-** aggregate.  The function has P5 arguments.  P4 is a pointer to the 
-** FuncDef structure that specifies the function.  Register P3 is the
-** accumulator.
-**
-** The P5 arguments are taken from register P2 and its
-** successors.
-**
-** This opcode is initially coded as OP_AggStep0.  On first evaluation,
-** the FuncDef stored in P4 is converted into an tdsqlite3_context and
-** the opcode is changed.  In this way, the initialization of the
-** tdsqlite3_context only happens once, instead of on each call to the
-** step function.
-*/
-case OP_AggInverse:
-case OP_AggStep: {
-  int n;
-  tdsqlite3_context *pCtx;
-
-  assert( pOp->p4type==P4_FUNCDEF );
-  n = pOp->p5;
-  assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) );
-  assert( n==0 || (pOp->p2>0 && pOp->p2+n<=(p->nMem+1 - p->nCursor)+1) );
-  assert( pOp->p3<pOp->p2 || pOp->p3>=pOp->p2+n );
-  pCtx = tdsqlite3DbMallocRawNN(db, n*sizeof(tdsqlite3_value*) +
-               (sizeof(pCtx[0]) + sizeof(Mem) - sizeof(tdsqlite3_value*)));
-  if( pCtx==0 ) goto no_mem;
-  pCtx->pMem = 0;
-  pCtx->pOut = (Mem*)&(pCtx->argv[n]);
-  tdsqlite3VdbeMemInit(pCtx->pOut, db, MEM_Null);
-  pCtx->pFunc = pOp->p4.pFunc;
-  pCtx->iOp = (int)(pOp - aOp);
-  pCtx->pVdbe = p;
-  pCtx->skipFlag = 0;
-  pCtx->isError = 0;
-  pCtx->argc = n;
-  pOp->p4type = P4_FUNCCTX;
-  pOp->p4.pCtx = pCtx;
-
-  /* OP_AggInverse must have P1==1 and OP_AggStep must have P1==0 */
-  assert( pOp->p1==(pOp->opcode==OP_AggInverse) );
-
-  pOp->opcode = OP_AggStep1;
-  /* Fall through into OP_AggStep */
-}
-case OP_AggStep1: {
-  int i;
-  tdsqlite3_context *pCtx;
-  Mem *pMem;
-
-  assert( pOp->p4type==P4_FUNCCTX );
-  pCtx = pOp->p4.pCtx;
-  pMem = &aMem[pOp->p3];
-
-#ifdef SQLITE_DEBUG
-  if( pOp->p1 ){
-    /* This is an OP_AggInverse call.  Verify that xStep has always
-    ** been called at least once prior to any xInverse call. */
-    assert( pMem->uTemp==0x1122e0e3 );
-  }else{
-    /* This is an OP_AggStep call.  Mark it as such. */
-    pMem->uTemp = 0x1122e0e3;
-  }
-#endif
-
-  /* If this function is inside of a trigger, the register array in aMem[]
-  ** might change from one evaluation to the next.  The next block of code
-  ** checks to see if the register array has changed, and if so it
-  ** reinitializes the relavant parts of the tdsqlite3_context object */
-  if( pCtx->pMem != pMem ){
-    pCtx->pMem = pMem;
-    for(i=pCtx->argc-1; i>=0; i--) pCtx->argv[i] = &aMem[pOp->p2+i];
-  }
-
-#ifdef SQLITE_DEBUG
-  for(i=0; i<pCtx->argc; i++){
-    assert( memIsValid(pCtx->argv[i]) );
-    REGISTER_TRACE(pOp->p2+i, pCtx->argv[i]);
-  }
-#endif
-
-  pMem->n++;
-  assert( pCtx->pOut->flags==MEM_Null );
-  assert( pCtx->isError==0 );
-  assert( pCtx->skipFlag==0 );
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  if( pOp->p1 ){
-    (pCtx->pFunc->xInverse)(pCtx,pCtx->argc,pCtx->argv);
-  }else
-#endif
-  (pCtx->pFunc->xSFunc)(pCtx,pCtx->argc,pCtx->argv); /* IMP: R-24505-23230 */
-
-  if( pCtx->isError ){
-    if( pCtx->isError>0 ){
-      tdsqlite3VdbeError(p, "%s", tdsqlite3_value_text(pCtx->pOut));
-      rc = pCtx->isError;
-    }
-    if( pCtx->skipFlag ){
-      assert( pOp[-1].opcode==OP_CollSeq );
-      i = pOp[-1].p1;
-      if( i ) tdsqlite3VdbeMemSetInt64(&aMem[i], 1);
-      pCtx->skipFlag = 0;
-    }
-    tdsqlite3VdbeMemRelease(pCtx->pOut);
-    pCtx->pOut->flags = MEM_Null;
-    pCtx->isError = 0;
-    if( rc ) goto abort_due_to_error;
-  }
-  assert( pCtx->pOut->flags==MEM_Null );
-  assert( pCtx->skipFlag==0 );
-  break;
-}
-
-/* Opcode: AggFinal P1 P2 * P4 *
-** Synopsis: accum=r[P1] N=P2
-**
-** P1 is the memory location that is the accumulator for an aggregate
-** or window function.  Execute the finalizer function 
-** for an aggregate and store the result in P1.
-**
-** P2 is the number of arguments that the step function takes and
-** P4 is a pointer to the FuncDef for this function.  The P2
-** argument is not used by this opcode.  It is only there to disambiguate
-** functions that can take varying numbers of arguments.  The
-** P4 argument is only needed for the case where
-** the step function was not previously called.
-*/
-/* Opcode: AggValue * P2 P3 P4 *
-** Synopsis: r[P3]=value N=P2
-**
-** Invoke the xValue() function and store the result in register P3.
-**
-** P2 is the number of arguments that the step function takes and
-** P4 is a pointer to the FuncDef for this function.  The P2
-** argument is not used by this opcode.  It is only there to disambiguate
-** functions that can take varying numbers of arguments.  The
-** P4 argument is only needed for the case where
-** the step function was not previously called.
-*/
-case OP_AggValue:
-case OP_AggFinal: {
-  Mem *pMem;
-  assert( pOp->p1>0 && pOp->p1<=(p->nMem+1 - p->nCursor) );
-  assert( pOp->p3==0 || pOp->opcode==OP_AggValue );
-  pMem = &aMem[pOp->p1];
-  assert( (pMem->flags & ~(MEM_Null|MEM_Agg))==0 );
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  if( pOp->p3 ){
-    memAboutToChange(p, &aMem[pOp->p3]);
-    rc = tdsqlite3VdbeMemAggValue(pMem, &aMem[pOp->p3], pOp->p4.pFunc);
-    pMem = &aMem[pOp->p3];
-  }else
-#endif
-  {
-    rc = tdsqlite3VdbeMemFinalize(pMem, pOp->p4.pFunc);
-  }
-  
-  if( rc ){
-    tdsqlite3VdbeError(p, "%s", tdsqlite3_value_text(pMem));
-    goto abort_due_to_error;
-  }
-  tdsqlite3VdbeChangeEncoding(pMem, encoding);
-  UPDATE_MAX_BLOBSIZE(pMem);
-  if( tdsqlite3VdbeMemTooBig(pMem) ){
-    goto too_big;
-  }
-  break;
-}
-
-#ifndef SQLITE_OMIT_WAL
-/* Opcode: Checkpoint P1 P2 P3 * *
-**
-** Checkpoint database P1. This is a no-op if P1 is not currently in
-** WAL mode. Parameter P2 is one of SQLITE_CHECKPOINT_PASSIVE, FULL,
-** RESTART, or TRUNCATE.  Write 1 or 0 into mem[P3] if the checkpoint returns
-** SQLITE_BUSY or not, respectively.  Write the number of pages in the
-** WAL after the checkpoint into mem[P3+1] and the number of pages
-** in the WAL that have been checkpointed after the checkpoint
-** completes into mem[P3+2].  However on an error, mem[P3+1] and
-** mem[P3+2] are initialized to -1.
-*/
-case OP_Checkpoint: {
-  int i;                          /* Loop counter */
-  int aRes[3];                    /* Results */
-  Mem *pMem;                      /* Write results here */
-
-  assert( p->readOnly==0 );
-  aRes[0] = 0;
-  aRes[1] = aRes[2] = -1;
-  assert( pOp->p2==SQLITE_CHECKPOINT_PASSIVE
-       || pOp->p2==SQLITE_CHECKPOINT_FULL
-       || pOp->p2==SQLITE_CHECKPOINT_RESTART
-       || pOp->p2==SQLITE_CHECKPOINT_TRUNCATE
-  );
-  rc = tdsqlite3Checkpoint(db, pOp->p1, pOp->p2, &aRes[1], &aRes[2]);
-  if( rc ){
-    if( rc!=SQLITE_BUSY ) goto abort_due_to_error;
-    rc = SQLITE_OK;
-    aRes[0] = 1;
-  }
-  for(i=0, pMem = &aMem[pOp->p3]; i<3; i++, pMem++){
-    tdsqlite3VdbeMemSetInt64(pMem, (i64)aRes[i]);
-  }    
-  break;
-};  
-#endif
-
-#ifndef SQLITE_OMIT_PRAGMA
-/* Opcode: JournalMode P1 P2 P3 * *
-**
-** Change the journal mode of database P1 to P3. P3 must be one of the
-** PAGER_JOURNALMODE_XXX values. If changing between the various rollback
-** modes (delete, truncate, persist, off and memory), this is a simple
-** operation. No IO is required.
-**
-** If changing into or out of WAL mode the procedure is more complicated.
-**
-** Write a string containing the final journal-mode to register P2.
-*/
-case OP_JournalMode: {    /* out2 */
-  Btree *pBt;                     /* Btree to change journal mode of */
-  Pager *pPager;                  /* Pager associated with pBt */
-  int eNew;                       /* New journal mode */
-  int eOld;                       /* The old journal mode */
-#ifndef SQLITE_OMIT_WAL
-  const char *zFilename;          /* Name of database file for pPager */
-#endif
-
-  pOut = out2Prerelease(p, pOp);
-  eNew = pOp->p3;
-  assert( eNew==PAGER_JOURNALMODE_DELETE 
-       || eNew==PAGER_JOURNALMODE_TRUNCATE 
-       || eNew==PAGER_JOURNALMODE_PERSIST 
-       || eNew==PAGER_JOURNALMODE_OFF
-       || eNew==PAGER_JOURNALMODE_MEMORY
-       || eNew==PAGER_JOURNALMODE_WAL
-       || eNew==PAGER_JOURNALMODE_QUERY
-  );
-  assert( pOp->p1>=0 && pOp->p1<db->nDb );
-  assert( p->readOnly==0 );
-
-  pBt = db->aDb[pOp->p1].pBt;
-  pPager = tdsqlite3BtreePager(pBt);
-  eOld = tdsqlite3PagerGetJournalMode(pPager);
-  if( eNew==PAGER_JOURNALMODE_QUERY ) eNew = eOld;
-  if( !tdsqlite3PagerOkToChangeJournalMode(pPager) ) eNew = eOld;
-
-#ifndef SQLITE_OMIT_WAL
-  zFilename = tdsqlite3PagerFilename(pPager, 1);
-
-  /* Do not allow a transition to journal_mode=WAL for a database
-  ** in temporary storage or if the VFS does not support shared memory 
-  */
-  if( eNew==PAGER_JOURNALMODE_WAL
-   && (tdsqlite3Strlen30(zFilename)==0           /* Temp file */
-       || !tdsqlite3PagerWalSupported(pPager))   /* No shared-memory support */
-  ){
-    eNew = eOld;
-  }
-
-  if( (eNew!=eOld)
-   && (eOld==PAGER_JOURNALMODE_WAL || eNew==PAGER_JOURNALMODE_WAL)
-  ){
-    if( !db->autoCommit || db->nVdbeRead>1 ){
-      rc = SQLITE_ERROR;
-      tdsqlite3VdbeError(p,
-          "cannot change %s wal mode from within a transaction",
-          (eNew==PAGER_JOURNALMODE_WAL ? "into" : "out of")
-      );
-      goto abort_due_to_error;
-    }else{
- 
-      if( eOld==PAGER_JOURNALMODE_WAL ){
-        /* If leaving WAL mode, close the log file. If successful, the call
-        ** to PagerCloseWal() checkpoints and deletes the write-ahead-log 
-        ** file. An EXCLUSIVE lock may still be held on the database file 
-        ** after a successful return. 
-        */
-        rc = tdsqlite3PagerCloseWal(pPager, db);
-        if( rc==SQLITE_OK ){
-          tdsqlite3PagerSetJournalMode(pPager, eNew);
-        }
-      }else if( eOld==PAGER_JOURNALMODE_MEMORY ){
-        /* Cannot transition directly from MEMORY to WAL.  Use mode OFF
-        ** as an intermediate */
-        tdsqlite3PagerSetJournalMode(pPager, PAGER_JOURNALMODE_OFF);
-      }
-  
-      /* Open a transaction on the database file. Regardless of the journal
-      ** mode, this transaction always uses a rollback journal.
-      */
-      assert( tdsqlite3BtreeIsInTrans(pBt)==0 );
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3BtreeSetVersion(pBt, (eNew==PAGER_JOURNALMODE_WAL ? 2 : 1));
-      }
-    }
-  }
-#endif /* ifndef SQLITE_OMIT_WAL */
-
-  if( rc ) eNew = eOld;
-  eNew = tdsqlite3PagerSetJournalMode(pPager, eNew);
-
-  pOut->flags = MEM_Str|MEM_Static|MEM_Term;
-  pOut->z = (char *)tdsqlite3JournalModename(eNew);
-  pOut->n = tdsqlite3Strlen30(pOut->z);
-  pOut->enc = SQLITE_UTF8;
-  tdsqlite3VdbeChangeEncoding(pOut, encoding);
-  if( rc ) goto abort_due_to_error;
-  break;
-};
-#endif /* SQLITE_OMIT_PRAGMA */
-
-#if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH)
-/* Opcode: Vacuum P1 P2 * * *
-**
-** Vacuum the entire database P1.  P1 is 0 for "main", and 2 or more
-** for an attached database.  The "temp" database may not be vacuumed.
-**
-** If P2 is not zero, then it is a register holding a string which is
-** the file into which the result of vacuum should be written.  When
-** P2 is zero, the vacuum overwrites the original database.
-*/
-case OP_Vacuum: {
-  assert( p->readOnly==0 );
-  rc = tdsqlite3RunVacuum(&p->zErrMsg, db, pOp->p1,
-                        pOp->p2 ? &aMem[pOp->p2] : 0);
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-#endif
-
-#if !defined(SQLITE_OMIT_AUTOVACUUM)
-/* Opcode: IncrVacuum P1 P2 * * *
-**
-** Perform a single step of the incremental vacuum procedure on
-** the P1 database. If the vacuum has finished, jump to instruction
-** P2. Otherwise, fall through to the next instruction.
-*/
-case OP_IncrVacuum: {        /* jump */
-  Btree *pBt;
-
-  assert( pOp->p1>=0 && pOp->p1<db->nDb );
-  assert( DbMaskTest(p->btreeMask, pOp->p1) );
-  assert( p->readOnly==0 );
-  pBt = db->aDb[pOp->p1].pBt;
-  rc = tdsqlite3BtreeIncrVacuum(pBt);
-  VdbeBranchTaken(rc==SQLITE_DONE,2);
-  if( rc ){
-    if( rc!=SQLITE_DONE ) goto abort_due_to_error;
-    rc = SQLITE_OK;
-    goto jump_to_p2;
-  }
-  break;
-}
-#endif
-
-/* Opcode: Expire P1 P2 * * *
-**
-** Cause precompiled statements to expire.  When an expired statement
-** is executed using tdsqlite3_step() it will either automatically
-** reprepare itself (if it was originally created using tdsqlite3_prepare_v2())
-** or it will fail with SQLITE_SCHEMA.
-** 
-** If P1 is 0, then all SQL statements become expired. If P1 is non-zero,
-** then only the currently executing statement is expired.
-**
-** If P2 is 0, then SQL statements are expired immediately.  If P2 is 1,
-** then running SQL statements are allowed to continue to run to completion.
-** The P2==1 case occurs when a CREATE INDEX or similar schema change happens
-** that might help the statement run faster but which does not affect the
-** correctness of operation.
-*/
-case OP_Expire: {
-  assert( pOp->p2==0 || pOp->p2==1 );
-  if( !pOp->p1 ){
-    tdsqlite3ExpirePreparedStatements(db, pOp->p2);
-  }else{
-    p->expired = pOp->p2+1;
-  }
-  break;
-}
-
-/* Opcode: CursorLock P1 * * * *
-**
-** Lock the btree to which cursor P1 is pointing so that the btree cannot be
-** written by an other cursor.
-*/
-case OP_CursorLock: {
-  VdbeCursor *pC;
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  tdsqlite3BtreeCursorPin(pC->uc.pCursor);
-  break;
-}
-
-/* Opcode: CursorUnlock P1 * * * *
-**
-** Unlock the btree to which cursor P1 is pointing so that it can be
-** written by other cursors.
-*/
-case OP_CursorUnlock: {
-  VdbeCursor *pC;
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  pC = p->apCsr[pOp->p1];
-  assert( pC!=0 );
-  assert( pC->eCurType==CURTYPE_BTREE );
-  tdsqlite3BtreeCursorUnpin(pC->uc.pCursor);
-  break;
-}
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-/* Opcode: TableLock P1 P2 P3 P4 *
-** Synopsis: iDb=P1 root=P2 write=P3
-**
-** Obtain a lock on a particular table. This instruction is only used when
-** the shared-cache feature is enabled. 
-**
-** P1 is the index of the database in sqlite3.aDb[] of the database
-** on which the lock is acquired.  A readlock is obtained if P3==0 or
-** a write lock if P3==1.
-**
-** P2 contains the root-page of the table to lock.
-**
-** P4 contains a pointer to the name of the table being locked. This is only
-** used to generate an error message if the lock cannot be obtained.
-*/
-case OP_TableLock: {
-  u8 isWriteLock = (u8)pOp->p3;
-  if( isWriteLock || 0==(db->flags&SQLITE_ReadUncommit) ){
-    int p1 = pOp->p1; 
-    assert( p1>=0 && p1<db->nDb );
-    assert( DbMaskTest(p->btreeMask, p1) );
-    assert( isWriteLock==0 || isWriteLock==1 );
-    rc = tdsqlite3BtreeLockTable(db->aDb[p1].pBt, pOp->p2, isWriteLock);
-    if( rc ){
-      if( (rc&0xFF)==SQLITE_LOCKED ){
-        const char *z = pOp->p4.z;
-        tdsqlite3VdbeError(p, "database table is locked: %s", z);
-      }
-      goto abort_due_to_error;
-    }
-  }
-  break;
-}
-#endif /* SQLITE_OMIT_SHARED_CACHE */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VBegin * * * P4 *
-**
-** P4 may be a pointer to an tdsqlite3_vtab structure. If so, call the 
-** xBegin method for that table.
-**
-** Also, whether or not P4 is set, check that this is not being called from
-** within a callback to a virtual table xSync() method. If it is, the error
-** code will be set to SQLITE_LOCKED.
-*/
-case OP_VBegin: {
-  VTable *pVTab;
-  pVTab = pOp->p4.pVtab;
-  rc = tdsqlite3VtabBegin(db, pVTab);
-  if( pVTab ) tdsqlite3VtabImportErrmsg(p, pVTab->pVtab);
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VCreate P1 P2 * * *
-**
-** P2 is a register that holds the name of a virtual table in database 
-** P1. Call the xCreate method for that table.
-*/
-case OP_VCreate: {
-  Mem sMem;          /* For storing the record being decoded */
-  const char *zTab;  /* Name of the virtual table */
-
-  memset(&sMem, 0, sizeof(sMem));
-  sMem.db = db;
-  /* Because P2 is always a static string, it is impossible for the
-  ** tdsqlite3VdbeMemCopy() to fail */
-  assert( (aMem[pOp->p2].flags & MEM_Str)!=0 );
-  assert( (aMem[pOp->p2].flags & MEM_Static)!=0 );
-  rc = tdsqlite3VdbeMemCopy(&sMem, &aMem[pOp->p2]);
-  assert( rc==SQLITE_OK );
-  zTab = (const char*)tdsqlite3_value_text(&sMem);
-  assert( zTab || db->mallocFailed );
-  if( zTab ){
-    rc = tdsqlite3VtabCallCreate(db, pOp->p1, zTab, &p->zErrMsg);
-  }
-  tdsqlite3VdbeMemRelease(&sMem);
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VDestroy P1 * * P4 *
-**
-** P4 is the name of a virtual table in database P1.  Call the xDestroy method
-** of that table.
-*/
-case OP_VDestroy: {
-  db->nVDestroy++;
-  rc = tdsqlite3VtabCallDestroy(db, pOp->p1, pOp->p4.z);
-  db->nVDestroy--;
-  assert( p->errorAction==OE_Abort && p->usesStmtJournal );
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VOpen P1 * * P4 *
-**
-** P4 is a pointer to a virtual table object, an tdsqlite3_vtab structure.
-** P1 is a cursor number.  This opcode opens a cursor to the virtual
-** table and stores that cursor in P1.
-*/
-case OP_VOpen: {
-  VdbeCursor *pCur;
-  tdsqlite3_vtab_cursor *pVCur;
-  tdsqlite3_vtab *pVtab;
-  const tdsqlite3_module *pModule;
-
-  assert( p->bIsReader );
-  pCur = 0;
-  pVCur = 0;
-  pVtab = pOp->p4.pVtab->pVtab;
-  if( pVtab==0 || NEVER(pVtab->pModule==0) ){
-    rc = SQLITE_LOCKED;
-    goto abort_due_to_error;
-  }
-  pModule = pVtab->pModule;
-  rc = pModule->xOpen(pVtab, &pVCur);
-  tdsqlite3VtabImportErrmsg(p, pVtab);
-  if( rc ) goto abort_due_to_error;
-
-  /* Initialize tdsqlite3_vtab_cursor base class */
-  pVCur->pVtab = pVtab;
-
-  /* Initialize vdbe cursor object */
-  pCur = allocateCursor(p, pOp->p1, 0, -1, CURTYPE_VTAB);
-  if( pCur ){
-    pCur->uc.pVCur = pVCur;
-    pVtab->nRef++;
-  }else{
-    assert( db->mallocFailed );
-    pModule->xClose(pVCur);
-    goto no_mem;
-  }
-  break;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VFilter P1 P2 P3 P4 *
-** Synopsis: iplan=r[P3] zplan='P4'
-**
-** P1 is a cursor opened using VOpen.  P2 is an address to jump to if
-** the filtered result set is empty.
-**
-** P4 is either NULL or a string that was generated by the xBestIndex
-** method of the module.  The interpretation of the P4 string is left
-** to the module implementation.
-**
-** This opcode invokes the xFilter method on the virtual table specified
-** by P1.  The integer query plan parameter to xFilter is stored in register
-** P3. Register P3+1 stores the argc parameter to be passed to the
-** xFilter method. Registers P3+2..P3+1+argc are the argc
-** additional parameters which are passed to
-** xFilter as argv. Register P3+2 becomes argv[0] when passed to xFilter.
-**
-** A jump is made to P2 if the result set after filtering would be empty.
-*/
-case OP_VFilter: {   /* jump */
-  int nArg;
-  int iQuery;
-  const tdsqlite3_module *pModule;
-  Mem *pQuery;
-  Mem *pArgc;
-  tdsqlite3_vtab_cursor *pVCur;
-  tdsqlite3_vtab *pVtab;
-  VdbeCursor *pCur;
-  int res;
-  int i;
-  Mem **apArg;
-
-  pQuery = &aMem[pOp->p3];
-  pArgc = &pQuery[1];
-  pCur = p->apCsr[pOp->p1];
-  assert( memIsValid(pQuery) );
-  REGISTER_TRACE(pOp->p3, pQuery);
-  assert( pCur->eCurType==CURTYPE_VTAB );
-  pVCur = pCur->uc.pVCur;
-  pVtab = pVCur->pVtab;
-  pModule = pVtab->pModule;
-
-  /* Grab the index number and argc parameters */
-  assert( (pQuery->flags&MEM_Int)!=0 && pArgc->flags==MEM_Int );
-  nArg = (int)pArgc->u.i;
-  iQuery = (int)pQuery->u.i;
-
-  /* Invoke the xFilter method */
-  res = 0;
-  apArg = p->apArg;
-  for(i = 0; i<nArg; i++){
-    apArg[i] = &pArgc[i+1];
-  }
-  rc = pModule->xFilter(pVCur, iQuery, pOp->p4.z, nArg, apArg);
-  tdsqlite3VtabImportErrmsg(p, pVtab);
-  if( rc ) goto abort_due_to_error;
-  res = pModule->xEof(pVCur);
-  pCur->nullRow = 0;
-  VdbeBranchTaken(res!=0,2);
-  if( res ) goto jump_to_p2;
-  break;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VColumn P1 P2 P3 * P5
-** Synopsis: r[P3]=vcolumn(P2)
-**
-** Store in register P3 the value of the P2-th column of
-** the current row of the virtual-table of cursor P1.
-**
-** If the VColumn opcode is being used to fetch the value of
-** an unchanging column during an UPDATE operation, then the P5
-** value is OPFLAG_NOCHNG.  This will cause the tdsqlite3_vtab_nochange()
-** function to return true inside the xColumn method of the virtual
-** table implementation.  The P5 column might also contain other
-** bits (OPFLAG_LENGTHARG or OPFLAG_TYPEOFARG) but those bits are
-** unused by OP_VColumn.
-*/
-case OP_VColumn: {
-  tdsqlite3_vtab *pVtab;
-  const tdsqlite3_module *pModule;
-  Mem *pDest;
-  tdsqlite3_context sContext;
-
-  VdbeCursor *pCur = p->apCsr[pOp->p1];
-  assert( pCur->eCurType==CURTYPE_VTAB );
-  assert( pOp->p3>0 && pOp->p3<=(p->nMem+1 - p->nCursor) );
-  pDest = &aMem[pOp->p3];
-  memAboutToChange(p, pDest);
-  if( pCur->nullRow ){
-    tdsqlite3VdbeMemSetNull(pDest);
-    break;
-  }
-  pVtab = pCur->uc.pVCur->pVtab;
-  pModule = pVtab->pModule;
-  assert( pModule->xColumn );
-  memset(&sContext, 0, sizeof(sContext));
-  sContext.pOut = pDest;
-  assert( pOp->p5==OPFLAG_NOCHNG || pOp->p5==0 );
-  if( pOp->p5 & OPFLAG_NOCHNG ){
-    tdsqlite3VdbeMemSetNull(pDest);
-    pDest->flags = MEM_Null|MEM_Zero;
-    pDest->u.nZero = 0;
-  }else{
-    MemSetTypeFlag(pDest, MEM_Null);
-  }
-  rc = pModule->xColumn(pCur->uc.pVCur, &sContext, pOp->p2);
-  tdsqlite3VtabImportErrmsg(p, pVtab);
-  if( sContext.isError>0 ){
-    tdsqlite3VdbeError(p, "%s", tdsqlite3_value_text(pDest));
-    rc = sContext.isError;
-  }
-  tdsqlite3VdbeChangeEncoding(pDest, encoding);
-  REGISTER_TRACE(pOp->p3, pDest);
-  UPDATE_MAX_BLOBSIZE(pDest);
-
-  if( tdsqlite3VdbeMemTooBig(pDest) ){
-    goto too_big;
-  }
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VNext P1 P2 * * *
-**
-** Advance virtual table P1 to the next row in its result set and
-** jump to instruction P2.  Or, if the virtual table has reached
-** the end of its result set, then fall through to the next instruction.
-*/
-case OP_VNext: {   /* jump */
-  tdsqlite3_vtab *pVtab;
-  const tdsqlite3_module *pModule;
-  int res;
-  VdbeCursor *pCur;
-
-  res = 0;
-  pCur = p->apCsr[pOp->p1];
-  assert( pCur->eCurType==CURTYPE_VTAB );
-  if( pCur->nullRow ){
-    break;
-  }
-  pVtab = pCur->uc.pVCur->pVtab;
-  pModule = pVtab->pModule;
-  assert( pModule->xNext );
-
-  /* Invoke the xNext() method of the module. There is no way for the
-  ** underlying implementation to return an error if one occurs during
-  ** xNext(). Instead, if an error occurs, true is returned (indicating that 
-  ** data is available) and the error code returned when xColumn or
-  ** some other method is next invoked on the save virtual table cursor.
-  */
-  rc = pModule->xNext(pCur->uc.pVCur);
-  tdsqlite3VtabImportErrmsg(p, pVtab);
-  if( rc ) goto abort_due_to_error;
-  res = pModule->xEof(pCur->uc.pVCur);
-  VdbeBranchTaken(!res,2);
-  if( !res ){
-    /* If there is data, jump to P2 */
-    goto jump_to_p2_and_check_for_interrupt;
-  }
-  goto check_for_interrupt;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VRename P1 * * P4 *
-**
-** P4 is a pointer to a virtual table object, an tdsqlite3_vtab structure.
-** This opcode invokes the corresponding xRename method. The value
-** in register P1 is passed as the zName argument to the xRename method.
-*/
-case OP_VRename: {
-  tdsqlite3_vtab *pVtab;
-  Mem *pName;
-  int isLegacy;
-  
-  isLegacy = (db->flags & SQLITE_LegacyAlter);
-  db->flags |= SQLITE_LegacyAlter;
-  pVtab = pOp->p4.pVtab->pVtab;
-  pName = &aMem[pOp->p1];
-  assert( pVtab->pModule->xRename );
-  assert( memIsValid(pName) );
-  assert( p->readOnly==0 );
-  REGISTER_TRACE(pOp->p1, pName);
-  assert( pName->flags & MEM_Str );
-  testcase( pName->enc==SQLITE_UTF8 );
-  testcase( pName->enc==SQLITE_UTF16BE );
-  testcase( pName->enc==SQLITE_UTF16LE );
-  rc = tdsqlite3VdbeChangeEncoding(pName, SQLITE_UTF8);
-  if( rc ) goto abort_due_to_error;
-  rc = pVtab->pModule->xRename(pVtab, pName->z);
-  if( isLegacy==0 ) db->flags &= ~(u64)SQLITE_LegacyAlter;
-  tdsqlite3VtabImportErrmsg(p, pVtab);
-  p->expired = 0;
-  if( rc ) goto abort_due_to_error;
-  break;
-}
-#endif
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Opcode: VUpdate P1 P2 P3 P4 P5
-** Synopsis: data=r[P3@P2]
-**
-** P4 is a pointer to a virtual table object, an tdsqlite3_vtab structure.
-** This opcode invokes the corresponding xUpdate method. P2 values
-** are contiguous memory cells starting at P3 to pass to the xUpdate 
-** invocation. The value in register (P3+P2-1) corresponds to the 
-** p2th element of the argv array passed to xUpdate.
-**
-** The xUpdate method will do a DELETE or an INSERT or both.
-** The argv[0] element (which corresponds to memory cell P3)
-** is the rowid of a row to delete.  If argv[0] is NULL then no 
-** deletion occurs.  The argv[1] element is the rowid of the new 
-** row.  This can be NULL to have the virtual table select the new 
-** rowid for itself.  The subsequent elements in the array are 
-** the values of columns in the new row.
-**
-** If P2==1 then no insert is performed.  argv[0] is the rowid of
-** a row to delete.
-**
-** P1 is a boolean flag. If it is set to true and the xUpdate call
-** is successful, then the value returned by tdsqlite3_last_insert_rowid() 
-** is set to the value of the rowid for the row just inserted.
-**
-** P5 is the error actions (OE_Replace, OE_Fail, OE_Ignore, etc) to
-** apply in the case of a constraint failure on an insert or update.
-*/
-case OP_VUpdate: {
-  tdsqlite3_vtab *pVtab;
-  const tdsqlite3_module *pModule;
-  int nArg;
-  int i;
-  sqlite_int64 rowid;
-  Mem **apArg;
-  Mem *pX;
-
-  assert( pOp->p2==1        || pOp->p5==OE_Fail   || pOp->p5==OE_Rollback 
-       || pOp->p5==OE_Abort || pOp->p5==OE_Ignore || pOp->p5==OE_Replace
-  );
-  assert( p->readOnly==0 );
-  if( db->mallocFailed ) goto no_mem;
-  tdsqlite3VdbeIncrWriteCounter(p, 0);
-  pVtab = pOp->p4.pVtab->pVtab;
-  if( pVtab==0 || NEVER(pVtab->pModule==0) ){
-    rc = SQLITE_LOCKED;
-    goto abort_due_to_error;
-  }
-  pModule = pVtab->pModule;
-  nArg = pOp->p2;
-  assert( pOp->p4type==P4_VTAB );
-  if( ALWAYS(pModule->xUpdate) ){
-    u8 vtabOnConflict = db->vtabOnConflict;
-    apArg = p->apArg;
-    pX = &aMem[pOp->p3];
-    for(i=0; i<nArg; i++){
-      assert( memIsValid(pX) );
-      memAboutToChange(p, pX);
-      apArg[i] = pX;
-      pX++;
-    }
-    db->vtabOnConflict = pOp->p5;
-    rc = pModule->xUpdate(pVtab, nArg, apArg, &rowid);
-    db->vtabOnConflict = vtabOnConflict;
-    tdsqlite3VtabImportErrmsg(p, pVtab);
-    if( rc==SQLITE_OK && pOp->p1 ){
-      assert( nArg>1 && apArg[0] && (apArg[0]->flags&MEM_Null) );
-      db->lastRowid = rowid;
-    }
-    if( (rc&0xff)==SQLITE_CONSTRAINT && pOp->p4.pVtab->bConstraint ){
-      if( pOp->p5==OE_Ignore ){
-        rc = SQLITE_OK;
-      }else{
-        p->errorAction = ((pOp->p5==OE_Replace) ? OE_Abort : pOp->p5);
-      }
-    }else{
-      p->nChange++;
-    }
-    if( rc ) goto abort_due_to_error;
-  }
-  break;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#ifndef  SQLITE_OMIT_PAGER_PRAGMAS
-/* Opcode: Pagecount P1 P2 * * *
-**
-** Write the current number of pages in database P1 to memory cell P2.
-*/
-case OP_Pagecount: {            /* out2 */
-  pOut = out2Prerelease(p, pOp);
-  pOut->u.i = tdsqlite3BtreeLastPage(db->aDb[pOp->p1].pBt);
-  break;
-}
-#endif
-
-
-#ifndef  SQLITE_OMIT_PAGER_PRAGMAS
-/* Opcode: MaxPgcnt P1 P2 P3 * *
-**
-** Try to set the maximum page count for database P1 to the value in P3.
-** Do not let the maximum page count fall below the current page count and
-** do not change the maximum page count value if P3==0.
-**
-** Store the maximum page count after the change in register P2.
-*/
-case OP_MaxPgcnt: {            /* out2 */
-  unsigned int newMax;
-  Btree *pBt;
-
-  pOut = out2Prerelease(p, pOp);
-  pBt = db->aDb[pOp->p1].pBt;
-  newMax = 0;
-  if( pOp->p3 ){
-    newMax = tdsqlite3BtreeLastPage(pBt);
-    if( newMax < (unsigned)pOp->p3 ) newMax = (unsigned)pOp->p3;
-  }
-  pOut->u.i = tdsqlite3BtreeMaxPageCount(pBt, newMax);
-  break;
-}
-#endif
-
-/* Opcode: Function P1 P2 P3 P4 *
-** Synopsis: r[P3]=func(r[P2@P5])
-**
-** Invoke a user function (P4 is a pointer to an tdsqlite3_context object that
-** contains a pointer to the function to be run) with arguments taken
-** from register P2 and successors.  The number of arguments is in
-** the tdsqlite3_context object that P4 points to.
-** The result of the function is stored
-** in register P3.  Register P3 must not be one of the function inputs.
-**
-** P1 is a 32-bit bitmask indicating whether or not each argument to the 
-** function was determined to be constant at compile time. If the first
-** argument was constant then bit 0 of P1 is set. This is used to determine
-** whether meta data associated with a user function argument using the
-** tdsqlite3_set_auxdata() API may be safely retained until the next
-** invocation of this opcode.
-**
-** See also: AggStep, AggFinal, PureFunc
-*/
-/* Opcode: PureFunc P1 P2 P3 P4 *
-** Synopsis: r[P3]=func(r[P2@P5])
-**
-** Invoke a user function (P4 is a pointer to an tdsqlite3_context object that
-** contains a pointer to the function to be run) with arguments taken
-** from register P2 and successors.  The number of arguments is in
-** the tdsqlite3_context object that P4 points to.
-** The result of the function is stored
-** in register P3.  Register P3 must not be one of the function inputs.
-**
-** P1 is a 32-bit bitmask indicating whether or not each argument to the 
-** function was determined to be constant at compile time. If the first
-** argument was constant then bit 0 of P1 is set. This is used to determine
-** whether meta data associated with a user function argument using the
-** tdsqlite3_set_auxdata() API may be safely retained until the next
-** invocation of this opcode.
-**
-** This opcode works exactly like OP_Function.  The only difference is in
-** its name.  This opcode is used in places where the function must be
-** purely non-deterministic.  Some built-in date/time functions can be
-** either determinitic of non-deterministic, depending on their arguments.
-** When those function are used in a non-deterministic way, they will check
-** to see if they were called using OP_PureFunc instead of OP_Function, and
-** if they were, they throw an error.
-**
-** See also: AggStep, AggFinal, Function
-*/
-case OP_PureFunc:              /* group */
-case OP_Function: {            /* group */
-  int i;
-  tdsqlite3_context *pCtx;
-
-  assert( pOp->p4type==P4_FUNCCTX );
-  pCtx = pOp->p4.pCtx;
-
-  /* If this function is inside of a trigger, the register array in aMem[]
-  ** might change from one evaluation to the next.  The next block of code
-  ** checks to see if the register array has changed, and if so it
-  ** reinitializes the relavant parts of the tdsqlite3_context object */
-  pOut = &aMem[pOp->p3];
-  if( pCtx->pOut != pOut ){
-    pCtx->pVdbe = p;
-    pCtx->pOut = pOut;
-    for(i=pCtx->argc-1; i>=0; i--) pCtx->argv[i] = &aMem[pOp->p2+i];
-  }
-  assert( pCtx->pVdbe==p );
-
-  memAboutToChange(p, pOut);
-#ifdef SQLITE_DEBUG
-  for(i=0; i<pCtx->argc; i++){
-    assert( memIsValid(pCtx->argv[i]) );
-    REGISTER_TRACE(pOp->p2+i, pCtx->argv[i]);
-  }
-#endif
-  MemSetTypeFlag(pOut, MEM_Null);
-  assert( pCtx->isError==0 );
-  (*pCtx->pFunc->xSFunc)(pCtx, pCtx->argc, pCtx->argv);/* IMP: R-24505-23230 */
-
-  /* If the function returned an error, throw an exception */
-  if( pCtx->isError ){
-    if( pCtx->isError>0 ){
-      tdsqlite3VdbeError(p, "%s", tdsqlite3_value_text(pOut));
-      rc = pCtx->isError;
-    }
-    tdsqlite3VdbeDeleteAuxData(db, &p->pAuxData, pCtx->iOp, pOp->p1);
-    pCtx->isError = 0;
-    if( rc ) goto abort_due_to_error;
-  }
-
-  /* Copy the result of the function into register P3 */
-  if( pOut->flags & (MEM_Str|MEM_Blob) ){
-    tdsqlite3VdbeChangeEncoding(pOut, encoding);
-    if( tdsqlite3VdbeMemTooBig(pOut) ) goto too_big;
-  }
-
-  REGISTER_TRACE(pOp->p3, pOut);
-  UPDATE_MAX_BLOBSIZE(pOut);
-  break;
-}
-
-/* Opcode: Trace P1 P2 * P4 *
-**
-** Write P4 on the statement trace output if statement tracing is
-** enabled.
-**
-** Operand P1 must be 0x7fffffff and P2 must positive.
-*/
-/* Opcode: Init P1 P2 P3 P4 *
-** Synopsis: Start at P2
-**
-** Programs contain a single instance of this opcode as the very first
-** opcode.
-**
-** If tracing is enabled (by the tdsqlite3_trace()) interface, then
-** the UTF-8 string contained in P4 is emitted on the trace callback.
-** Or if P4 is blank, use the string returned by tdsqlite3_sql().
-**
-** If P2 is not zero, jump to instruction P2.
-**
-** Increment the value of P1 so that OP_Once opcodes will jump the
-** first time they are evaluated for this run.
-**
-** If P3 is not zero, then it is an address to jump to if an SQLITE_CORRUPT
-** error is encountered.
-*/
-case OP_Trace:
-case OP_Init: {          /* jump */
-  int i;
-#ifndef SQLITE_OMIT_TRACE
-  char *zTrace;
-#endif
-
-  /* If the P4 argument is not NULL, then it must be an SQL comment string.
-  ** The "--" string is broken up to prevent false-positives with srcck1.c.
-  **
-  ** This assert() provides evidence for:
-  ** EVIDENCE-OF: R-50676-09860 The callback can compute the same text that
-  ** would have been returned by the legacy tdsqlite3_trace() interface by
-  ** using the X argument when X begins with "--" and invoking
-  ** tdsqlite3_expanded_sql(P) otherwise.
-  */
-  assert( pOp->p4.z==0 || strncmp(pOp->p4.z, "-" "- ", 3)==0 );
-
-  /* OP_Init is always instruction 0 */
-  assert( pOp==p->aOp || pOp->opcode==OP_Trace );
-
-#ifndef SQLITE_OMIT_TRACE
-  if( (db->mTrace & (SQLITE_TRACE_STMT|SQLITE_TRACE_LEGACY))!=0
-   && !p->doingRerun
-   && (zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0
-  ){
-#ifndef SQLITE_OMIT_DEPRECATED
-    if( db->mTrace & SQLITE_TRACE_LEGACY ){
-      void (*x)(void*,const char*) = (void(*)(void*,const char*))db->xTrace;
-      char *z = tdsqlite3VdbeExpandSql(p, zTrace);
-      x(db->pTraceArg, z);
-      tdsqlite3_free(z);
-    }else
-#endif
-    if( db->nVdbeExec>1 ){
-      char *z = tdsqlite3MPrintf(db, "-- %s", zTrace);
-      (void)db->xTrace(SQLITE_TRACE_STMT, db->pTraceArg, p, z);
-      tdsqlite3DbFree(db, z);
-    }else{
-      (void)db->xTrace(SQLITE_TRACE_STMT, db->pTraceArg, p, zTrace);
-    }
-  }
-#ifdef SQLITE_USE_FCNTL_TRACE
-  zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql);
-  if( zTrace ){
-    int j;
-    for(j=0; j<db->nDb; j++){
-      if( DbMaskTest(p->btreeMask, j)==0 ) continue;
-      tdsqlite3_file_control(db, db->aDb[j].zDbSName, SQLITE_FCNTL_TRACE, zTrace);
-    }
-  }
-#endif /* SQLITE_USE_FCNTL_TRACE */
-#ifdef SQLITE_DEBUG
-  if( (db->flags & SQLITE_SqlTrace)!=0
-   && (zTrace = (pOp->p4.z ? pOp->p4.z : p->zSql))!=0
-  ){
-    tdsqlite3DebugPrintf("SQL-trace: %s\n", zTrace);
-  }
-#endif /* SQLITE_DEBUG */
-#endif /* SQLITE_OMIT_TRACE */
-  assert( pOp->p2>0 );
-  if( pOp->p1>=tdsqlite3GlobalConfig.iOnceResetThreshold ){
-    if( pOp->opcode==OP_Trace ) break;
-    for(i=1; i<p->nOp; i++){
-      if( p->aOp[i].opcode==OP_Once ) p->aOp[i].p1 = 0;
-    }
-    pOp->p1 = 0;
-  }
-  pOp->p1++;
-  p->aCounter[SQLITE_STMTSTATUS_RUN]++;
-  goto jump_to_p2;
-}
-
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-/* Opcode: CursorHint P1 * * P4 *
-**
-** Provide a hint to cursor P1 that it only needs to return rows that
-** satisfy the Expr in P4.  TK_REGISTER terms in the P4 expression refer
-** to values currently held in registers.  TK_COLUMN terms in the P4
-** expression refer to columns in the b-tree to which cursor P1 is pointing.
-*/
-case OP_CursorHint: {
-  VdbeCursor *pC;
-
-  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
-  assert( pOp->p4type==P4_EXPR );
-  pC = p->apCsr[pOp->p1];
-  if( pC ){
-    assert( pC->eCurType==CURTYPE_BTREE );
-    tdsqlite3BtreeCursorHint(pC->uc.pCursor, BTREE_HINT_RANGE,
-                           pOp->p4.pExpr, aMem);
-  }
-  break;
-}
-#endif /* SQLITE_ENABLE_CURSOR_HINTS */
-
-#ifdef SQLITE_DEBUG
-/* Opcode:  Abortable   * * * * *
-**
-** Verify that an Abort can happen.  Assert if an Abort at this point
-** might cause database corruption.  This opcode only appears in debugging
-** builds.
-**
-** An Abort is safe if either there have been no writes, or if there is
-** an active statement journal.
-*/
-case OP_Abortable: {
-  tdsqlite3VdbeAssertAbortable(p);
-  break;
-}
-#endif
-
-#ifdef SQLITE_DEBUG
-/* Opcode:  ReleaseReg   P1 P2 P3 * P5
-** Synopsis: release r[P1@P2] mask P3
-**
-** Release registers from service.  Any content that was in the
-** the registers is unreliable after this opcode completes.
-**
-** The registers released will be the P2 registers starting at P1,
-** except if bit ii of P3 set, then do not release register P1+ii.
-** In other words, P3 is a mask of registers to preserve.
-**
-** Releasing a register clears the Mem.pScopyFrom pointer.  That means
-** that if the content of the released register was set using OP_SCopy,
-** a change to the value of the source register for the OP_SCopy will no longer
-** generate an assertion fault in tdsqlite3VdbeMemAboutToChange().
-**
-** If P5 is set, then all released registers have their type set
-** to MEM_Undefined so that any subsequent attempt to read the released
-** register (before it is reinitialized) will generate an assertion fault.
-**
-** P5 ought to be set on every call to this opcode.
-** However, there are places in the code generator will release registers
-** before their are used, under the (valid) assumption that the registers
-** will not be reallocated for some other purpose before they are used and
-** hence are safe to release.
-**
-** This opcode is only available in testing and debugging builds.  It is
-** not generated for release builds.  The purpose of this opcode is to help
-** validate the generated bytecode.  This opcode does not actually contribute
-** to computing an answer.
-*/
-case OP_ReleaseReg: {
-  Mem *pMem;
-  int i;
-  u32 constMask;
-  assert( pOp->p1>0 );
-  assert( pOp->p1+pOp->p2<=(p->nMem+1 - p->nCursor)+1 );
-  pMem = &aMem[pOp->p1];
-  constMask = pOp->p3;
-  for(i=0; i<pOp->p2; i++, pMem++){
-    if( i>=32 || (constMask & MASKBIT32(i))==0 ){
-      pMem->pScopyFrom = 0;
-      if( i<32 && pOp->p5 ) MemSetTypeFlag(pMem, MEM_Undefined);
-    }
-  }
-  break;
-}
-#endif
-
-/* Opcode: Noop * * * * *
-**
-** Do nothing.  This instruction is often useful as a jump
-** destination.
-*/
-/*
-** The magic Explain opcode are only inserted when explain==2 (which
-** is to say when the EXPLAIN QUERY PLAN syntax is used.)
-** This opcode records information from the optimizer.  It is the
-** the same as a no-op.  This opcodesnever appears in a real VM program.
-*/
-default: {          /* This is really OP_Noop, OP_Explain */
-  assert( pOp->opcode==OP_Noop || pOp->opcode==OP_Explain );
-
-  break;
-}
-
-/*****************************************************************************
-** The cases of the switch statement above this line should all be indented
-** by 6 spaces.  But the left-most 6 spaces have been removed to improve the
-** readability.  From this point on down, the normal indentation rules are
-** restored.
-*****************************************************************************/
-    }
-
-#ifdef VDBE_PROFILE
-    {
-      u64 endTime = tdsqlite3NProfileCnt ? tdsqlite3NProfileCnt : tdsqlite3Hwtime();
-      if( endTime>start ) pOrigOp->cycles += endTime - start;
-      pOrigOp->cnt++;
-    }
-#endif
-
-    /* The following code adds nothing to the actual functionality
-    ** of the program.  It is only here for testing and debugging.
-    ** On the other hand, it does burn CPU cycles every time through
-    ** the evaluator loop.  So we can leave it out when NDEBUG is defined.
-    */
-#ifndef NDEBUG
-    assert( pOp>=&aOp[-1] && pOp<&aOp[p->nOp-1] );
-
-#ifdef SQLITE_DEBUG
-    if( db->flags & SQLITE_VdbeTrace ){
-      u8 opProperty = tdsqlite3OpcodeProperty[pOrigOp->opcode];
-      if( rc!=0 ) printf("rc=%d\n",rc);
-      if( opProperty & (OPFLG_OUT2) ){
-        registerTrace(pOrigOp->p2, &aMem[pOrigOp->p2]);
-      }
-      if( opProperty & OPFLG_OUT3 ){
-        registerTrace(pOrigOp->p3, &aMem[pOrigOp->p3]);
-      }
-      if( opProperty==0xff ){
-        /* Never happens.  This code exists to avoid a harmless linkage
-        ** warning aboud tdsqlite3VdbeRegisterDump() being defined but not
-        ** used. */
-        tdsqlite3VdbeRegisterDump(p);
-      }
-    }
-#endif  /* SQLITE_DEBUG */
-#endif  /* NDEBUG */
-  }  /* The end of the for(;;) loop the loops through opcodes */
-
-  /* If we reach this point, it means that execution is finished with
-  ** an error of some kind.
-  */
-abort_due_to_error:
-  if( db->mallocFailed ) rc = SQLITE_NOMEM_BKPT;
-  assert( rc );
-  if( p->zErrMsg==0 && rc!=SQLITE_IOERR_NOMEM ){
-    tdsqlite3VdbeError(p, "%s", tdsqlite3ErrStr(rc));
-  }
-  p->rc = rc;
-  tdsqlite3SystemError(db, rc);
-  testcase( tdsqlite3GlobalConfig.xLog!=0 );
-  tdsqlite3_log(rc, "statement aborts at %d: [%s] %s", 
-                   (int)(pOp - aOp), p->zSql, p->zErrMsg);
-  tdsqlite3VdbeHalt(p);
-  if( rc==SQLITE_IOERR_NOMEM ) tdsqlite3OomFault(db);
-  rc = SQLITE_ERROR;
-  if( resetSchemaOnFault>0 ){
-    tdsqlite3ResetOneSchema(db, resetSchemaOnFault-1);
-  }
-
-  /* This is the only way out of this procedure.  We have to
-  ** release the mutexes on btrees that were acquired at the
-  ** top. */
-vdbe_return:
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
-  while( nVmStep>=nProgressLimit && db->xProgress!=0 ){
-    nProgressLimit += db->nProgressOps;
-    if( db->xProgress(db->pProgressArg) ){
-      nProgressLimit = 0xffffffff;
-      rc = SQLITE_INTERRUPT;
-      goto abort_due_to_error;
-    }
-  }
-#endif
-  p->aCounter[SQLITE_STMTSTATUS_VM_STEP] += (int)nVmStep;
-  tdsqlite3VdbeLeave(p);
-  assert( rc!=SQLITE_OK || nExtraDelete==0 
-       || tdsqlite3_strlike("DELETE%",p->zSql,0)!=0 
-  );
-  return rc;
-
-  /* Jump to here if a string or blob larger than SQLITE_MAX_LENGTH
-  ** is encountered.
-  */
-too_big:
-  tdsqlite3VdbeError(p, "string or blob too big");
-  rc = SQLITE_TOOBIG;
-  goto abort_due_to_error;
-
-  /* Jump to here if a malloc() fails.
-  */
-no_mem:
-  tdsqlite3OomFault(db);
-  tdsqlite3VdbeError(p, "out of memory");
-  rc = SQLITE_NOMEM_BKPT;
-  goto abort_due_to_error;
-
-  /* Jump to here if the tdsqlite3_interrupt() API sets the interrupt
-  ** flag.
-  */
-abort_due_to_interrupt:
-  assert( db->u1.isInterrupted );
-  rc = db->mallocFailed ? SQLITE_NOMEM_BKPT : SQLITE_INTERRUPT;
-  p->rc = rc;
-  tdsqlite3VdbeError(p, "%s", tdsqlite3ErrStr(rc));
-  goto abort_due_to_error;
-}
-
-
-/************** End of vdbe.c ************************************************/
-/************** Begin file vdbeblob.c ****************************************/
-/*
-** 2007 May 1
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains code used to implement incremental BLOB I/O.
-*/
-
-/* #include "sqliteInt.h" */
-/* #include "vdbeInt.h" */
-
-#ifndef SQLITE_OMIT_INCRBLOB
-
-/*
-** Valid tdsqlite3_blob* handles point to Incrblob structures.
-*/
-typedef struct Incrblob Incrblob;
-struct Incrblob {
-  int nByte;              /* Size of open blob, in bytes */
-  int iOffset;            /* Byte offset of blob in cursor data */
-  u16 iCol;               /* Table column this handle is open on */
-  BtCursor *pCsr;         /* Cursor pointing at blob row */
-  tdsqlite3_stmt *pStmt;    /* Statement holding cursor open */
-  tdsqlite3 *db;            /* The associated database */
-  char *zDb;              /* Database name */
-  Table *pTab;            /* Table object */
-};
-
-
-/*
-** This function is used by both blob_open() and blob_reopen(). It seeks
-** the b-tree cursor associated with blob handle p to point to row iRow.
-** If successful, SQLITE_OK is returned and subsequent calls to
-** tdsqlite3_blob_read() or tdsqlite3_blob_write() access the specified row.
-**
-** If an error occurs, or if the specified row does not exist or does not
-** contain a value of type TEXT or BLOB in the column nominated when the
-** blob handle was opened, then an error code is returned and *pzErr may
-** be set to point to a buffer containing an error message. It is the
-** responsibility of the caller to free the error message buffer using
-** tdsqlite3DbFree().
-**
-** If an error does occur, then the b-tree cursor is closed. All subsequent
-** calls to tdsqlite3_blob_read(), blob_write() or blob_reopen() will 
-** immediately return SQLITE_ABORT.
-*/
-static int blobSeekToRow(Incrblob *p, tdsqlite3_int64 iRow, char **pzErr){
-  int rc;                         /* Error code */
-  char *zErr = 0;                 /* Error message */
-  Vdbe *v = (Vdbe *)p->pStmt;
-
-  /* Set the value of register r[1] in the SQL statement to integer iRow. 
-  ** This is done directly as a performance optimization
-  */
-  v->aMem[1].flags = MEM_Int;
-  v->aMem[1].u.i = iRow;
-
-  /* If the statement has been run before (and is paused at the OP_ResultRow)
-  ** then back it up to the point where it does the OP_NotExists.  This could
-  ** have been down with an extra OP_Goto, but simply setting the program
-  ** counter is faster. */
-  if( v->pc>4 ){
-    v->pc = 4;
-    assert( v->aOp[v->pc].opcode==OP_NotExists );
-    rc = tdsqlite3VdbeExec(v);
-  }else{
-    rc = tdsqlite3_step(p->pStmt);
-  }
-  if( rc==SQLITE_ROW ){
-    VdbeCursor *pC = v->apCsr[0];
-    u32 type = pC->nHdrParsed>p->iCol ? pC->aType[p->iCol] : 0;
-    testcase( pC->nHdrParsed==p->iCol );
-    testcase( pC->nHdrParsed==p->iCol+1 );
-    if( type<12 ){
-      zErr = tdsqlite3MPrintf(p->db, "cannot open value of type %s",
-          type==0?"null": type==7?"real": "integer"
-      );
-      rc = SQLITE_ERROR;
-      tdsqlite3_finalize(p->pStmt);
-      p->pStmt = 0;
-    }else{
-      p->iOffset = pC->aType[p->iCol + pC->nField];
-      p->nByte = tdsqlite3VdbeSerialTypeLen(type);
-      p->pCsr =  pC->uc.pCursor;
-      tdsqlite3BtreeIncrblobCursor(p->pCsr);
-    }
-  }
-
-  if( rc==SQLITE_ROW ){
-    rc = SQLITE_OK;
-  }else if( p->pStmt ){
-    rc = tdsqlite3_finalize(p->pStmt);
-    p->pStmt = 0;
-    if( rc==SQLITE_OK ){
-      zErr = tdsqlite3MPrintf(p->db, "no such rowid: %lld", iRow);
-      rc = SQLITE_ERROR;
-    }else{
-      zErr = tdsqlite3MPrintf(p->db, "%s", tdsqlite3_errmsg(p->db));
-    }
-  }
-
-  assert( rc!=SQLITE_OK || zErr==0 );
-  assert( rc!=SQLITE_ROW && rc!=SQLITE_DONE );
-
-  *pzErr = zErr;
-  return rc;
-}
-
-/*
-** Open a blob handle.
-*/
-SQLITE_API int tdsqlite3_blob_open(
-  tdsqlite3* db,            /* The database connection */
-  const char *zDb,        /* The attached database containing the blob */
-  const char *zTable,     /* The table containing the blob */
-  const char *zColumn,    /* The column containing the blob */
-  sqlite_int64 iRow,      /* The row containing the glob */
-  int wrFlag,             /* True -> read/write access, false -> read-only */
-  tdsqlite3_blob **ppBlob   /* Handle for accessing the blob returned here */
-){
-  int nAttempt = 0;
-  int iCol;               /* Index of zColumn in row-record */
-  int rc = SQLITE_OK;
-  char *zErr = 0;
-  Table *pTab;
-  Incrblob *pBlob = 0;
-  Parse sParse;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( ppBlob==0 ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  *ppBlob = 0;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zTable==0 ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  wrFlag = !!wrFlag;                /* wrFlag = (wrFlag ? 1 : 0); */
-
-  tdsqlite3_mutex_enter(db->mutex);
-
-  pBlob = (Incrblob *)tdsqlite3DbMallocZero(db, sizeof(Incrblob));
-  do {
-    memset(&sParse, 0, sizeof(Parse));
-    if( !pBlob ) goto blob_open_out;
-    sParse.db = db;
-    tdsqlite3DbFree(db, zErr);
-    zErr = 0;
-
-    tdsqlite3BtreeEnterAll(db);
-    pTab = tdsqlite3LocateTable(&sParse, 0, zTable, zDb);
-    if( pTab && IsVirtual(pTab) ){
-      pTab = 0;
-      tdsqlite3ErrorMsg(&sParse, "cannot open virtual table: %s", zTable);
-    }
-    if( pTab && !HasRowid(pTab) ){
-      pTab = 0;
-      tdsqlite3ErrorMsg(&sParse, "cannot open table without rowid: %s", zTable);
-    }
-#ifndef SQLITE_OMIT_VIEW
-    if( pTab && pTab->pSelect ){
-      pTab = 0;
-      tdsqlite3ErrorMsg(&sParse, "cannot open view: %s", zTable);
-    }
-#endif
-    if( !pTab ){
-      if( sParse.zErrMsg ){
-        tdsqlite3DbFree(db, zErr);
-        zErr = sParse.zErrMsg;
-        sParse.zErrMsg = 0;
-      }
-      rc = SQLITE_ERROR;
-      tdsqlite3BtreeLeaveAll(db);
-      goto blob_open_out;
-    }
-    pBlob->pTab = pTab;
-    pBlob->zDb = db->aDb[tdsqlite3SchemaToIndex(db, pTab->pSchema)].zDbSName;
-
-    /* Now search pTab for the exact column. */
-    for(iCol=0; iCol<pTab->nCol; iCol++) {
-      if( tdsqlite3StrICmp(pTab->aCol[iCol].zName, zColumn)==0 ){
-        break;
-      }
-    }
-    if( iCol==pTab->nCol ){
-      tdsqlite3DbFree(db, zErr);
-      zErr = tdsqlite3MPrintf(db, "no such column: \"%s\"", zColumn);
-      rc = SQLITE_ERROR;
-      tdsqlite3BtreeLeaveAll(db);
-      goto blob_open_out;
-    }
-
-    /* If the value is being opened for writing, check that the
-    ** column is not indexed, and that it is not part of a foreign key. 
-    */
-    if( wrFlag ){
-      const char *zFault = 0;
-      Index *pIdx;
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-      if( db->flags&SQLITE_ForeignKeys ){
-        /* Check that the column is not part of an FK child key definition. It
-        ** is not necessary to check if it is part of a parent key, as parent
-        ** key columns must be indexed. The check below will pick up this 
-        ** case.  */
-        FKey *pFKey;
-        for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
-          int j;
-          for(j=0; j<pFKey->nCol; j++){
-            if( pFKey->aCol[j].iFrom==iCol ){
-              zFault = "foreign key";
-            }
-          }
-        }
-      }
-#endif
-      for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-        int j;
-        for(j=0; j<pIdx->nKeyCol; j++){
-          /* FIXME: Be smarter about indexes that use expressions */
-          if( pIdx->aiColumn[j]==iCol || pIdx->aiColumn[j]==XN_EXPR ){
-            zFault = "indexed";
-          }
-        }
-      }
-      if( zFault ){
-        tdsqlite3DbFree(db, zErr);
-        zErr = tdsqlite3MPrintf(db, "cannot open %s column for writing", zFault);
-        rc = SQLITE_ERROR;
-        tdsqlite3BtreeLeaveAll(db);
-        goto blob_open_out;
-      }
-    }
-
-    pBlob->pStmt = (tdsqlite3_stmt *)tdsqlite3VdbeCreate(&sParse);
-    assert( pBlob->pStmt || db->mallocFailed );
-    if( pBlob->pStmt ){
-      
-      /* This VDBE program seeks a btree cursor to the identified 
-      ** db/table/row entry. The reason for using a vdbe program instead
-      ** of writing code to use the b-tree layer directly is that the
-      ** vdbe program will take advantage of the various transaction,
-      ** locking and error handling infrastructure built into the vdbe.
-      **
-      ** After seeking the cursor, the vdbe executes an OP_ResultRow.
-      ** Code external to the Vdbe then "borrows" the b-tree cursor and
-      ** uses it to implement the blob_read(), blob_write() and 
-      ** blob_bytes() functions.
-      **
-      ** The tdsqlite3_blob_close() function finalizes the vdbe program,
-      ** which closes the b-tree cursor and (possibly) commits the 
-      ** transaction.
-      */
-      static const int iLn = VDBE_OFFSET_LINENO(2);
-      static const VdbeOpList openBlob[] = {
-        {OP_TableLock,      0, 0, 0},  /* 0: Acquire a read or write lock */
-        {OP_OpenRead,       0, 0, 0},  /* 1: Open a cursor */
-        /* blobSeekToRow() will initialize r[1] to the desired rowid */
-        {OP_NotExists,      0, 5, 1},  /* 2: Seek the cursor to rowid=r[1] */
-        {OP_Column,         0, 0, 1},  /* 3  */
-        {OP_ResultRow,      1, 0, 0},  /* 4  */
-        {OP_Halt,           0, 0, 0},  /* 5  */
-      };
-      Vdbe *v = (Vdbe *)pBlob->pStmt;
-      int iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-      VdbeOp *aOp;
-
-      tdsqlite3VdbeAddOp4Int(v, OP_Transaction, iDb, wrFlag, 
-                           pTab->pSchema->schema_cookie,
-                           pTab->pSchema->iGeneration);
-      tdsqlite3VdbeChangeP5(v, 1);
-      assert( tdsqlite3VdbeCurrentAddr(v)==2 || db->mallocFailed );
-      aOp = tdsqlite3VdbeAddOpList(v, ArraySize(openBlob), openBlob, iLn);
-
-      /* Make sure a mutex is held on the table to be accessed */
-      tdsqlite3VdbeUsesBtree(v, iDb); 
-
-      if( db->mallocFailed==0 ){
-        assert( aOp!=0 );
-        /* Configure the OP_TableLock instruction */
-#ifdef SQLITE_OMIT_SHARED_CACHE
-        aOp[0].opcode = OP_Noop;
-#else
-        aOp[0].p1 = iDb;
-        aOp[0].p2 = pTab->tnum;
-        aOp[0].p3 = wrFlag;
-        tdsqlite3VdbeChangeP4(v, 2, pTab->zName, P4_TRANSIENT);
-      }
-      if( db->mallocFailed==0 ){
-#endif
-
-        /* Remove either the OP_OpenWrite or OpenRead. Set the P2 
-        ** parameter of the other to pTab->tnum.  */
-        if( wrFlag ) aOp[1].opcode = OP_OpenWrite;
-        aOp[1].p2 = pTab->tnum;
-        aOp[1].p3 = iDb;   
-
-        /* Configure the number of columns. Configure the cursor to
-        ** think that the table has one more column than it really
-        ** does. An OP_Column to retrieve this imaginary column will
-        ** always return an SQL NULL. This is useful because it means
-        ** we can invoke OP_Column to fill in the vdbe cursors type 
-        ** and offset cache without causing any IO.
-        */
-        aOp[1].p4type = P4_INT32;
-        aOp[1].p4.i = pTab->nCol+1;
-        aOp[3].p2 = pTab->nCol;
-
-        sParse.nVar = 0;
-        sParse.nMem = 1;
-        sParse.nTab = 1;
-        tdsqlite3VdbeMakeReady(v, &sParse);
-      }
-    }
-   
-    pBlob->iCol = iCol;
-    pBlob->db = db;
-    tdsqlite3BtreeLeaveAll(db);
-    if( db->mallocFailed ){
-      goto blob_open_out;
-    }
-    rc = blobSeekToRow(pBlob, iRow, &zErr);
-  } while( (++nAttempt)<SQLITE_MAX_SCHEMA_RETRY && rc==SQLITE_SCHEMA );
-
-blob_open_out:
-  if( rc==SQLITE_OK && db->mallocFailed==0 ){
-    *ppBlob = (tdsqlite3_blob *)pBlob;
-  }else{
-    if( pBlob && pBlob->pStmt ) tdsqlite3VdbeFinalize((Vdbe *)pBlob->pStmt);
-    tdsqlite3DbFree(db, pBlob);
-  }
-  tdsqlite3ErrorWithMsg(db, rc, (zErr ? "%s" : 0), zErr);
-  tdsqlite3DbFree(db, zErr);
-  tdsqlite3ParserReset(&sParse);
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** Close a blob handle that was previously created using
-** tdsqlite3_blob_open().
-*/
-SQLITE_API int tdsqlite3_blob_close(tdsqlite3_blob *pBlob){
-  Incrblob *p = (Incrblob *)pBlob;
-  int rc;
-  tdsqlite3 *db;
-
-  if( p ){
-    tdsqlite3_stmt *pStmt = p->pStmt;
-    db = p->db;
-    tdsqlite3_mutex_enter(db->mutex);
-    tdsqlite3DbFree(db, p);
-    tdsqlite3_mutex_leave(db->mutex);
-    rc = tdsqlite3_finalize(pStmt);
-  }else{
-    rc = SQLITE_OK;
-  }
-  return rc;
-}
-
-/*
-** Perform a read or write operation on a blob
-*/
-static int blobReadWrite(
-  tdsqlite3_blob *pBlob, 
-  void *z, 
-  int n, 
-  int iOffset, 
-  int (*xCall)(BtCursor*, u32, u32, void*)
-){
-  int rc;
-  Incrblob *p = (Incrblob *)pBlob;
-  Vdbe *v;
-  tdsqlite3 *db;
-
-  if( p==0 ) return SQLITE_MISUSE_BKPT;
-  db = p->db;
-  tdsqlite3_mutex_enter(db->mutex);
-  v = (Vdbe*)p->pStmt;
-
-  if( n<0 || iOffset<0 || ((tdsqlite3_int64)iOffset+n)>p->nByte ){
-    /* Request is out of range. Return a transient error. */
-    rc = SQLITE_ERROR;
-  }else if( v==0 ){
-    /* If there is no statement handle, then the blob-handle has
-    ** already been invalidated. Return SQLITE_ABORT in this case.
-    */
-    rc = SQLITE_ABORT;
-  }else{
-    /* Call either BtreeData() or BtreePutData(). If SQLITE_ABORT is
-    ** returned, clean-up the statement handle.
-    */
-    assert( db == v->db );
-    tdsqlite3BtreeEnterCursor(p->pCsr);
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-    if( xCall==tdsqlite3BtreePutData && db->xPreUpdateCallback ){
-      /* If a pre-update hook is registered and this is a write cursor, 
-      ** invoke it here. 
-      ** 
-      ** TODO: The preupdate-hook is passed SQLITE_DELETE, even though this
-      ** operation should really be an SQLITE_UPDATE. This is probably
-      ** incorrect, but is convenient because at this point the new.* values 
-      ** are not easily obtainable. And for the sessions module, an 
-      ** SQLITE_UPDATE where the PK columns do not change is handled in the 
-      ** same way as an SQLITE_DELETE (the SQLITE_DELETE code is actually
-      ** slightly more efficient). Since you cannot write to a PK column
-      ** using the incremental-blob API, this works. For the sessions module
-      ** anyhow.
-      */
-      tdsqlite3_int64 iKey;
-      iKey = tdsqlite3BtreeIntegerKey(p->pCsr);
-      tdsqlite3VdbePreUpdateHook(
-          v, v->apCsr[0], SQLITE_DELETE, p->zDb, p->pTab, iKey, -1
-      );
-    }
-#endif
-
-    rc = xCall(p->pCsr, iOffset+p->iOffset, n, z);
-    tdsqlite3BtreeLeaveCursor(p->pCsr);
-    if( rc==SQLITE_ABORT ){
-      tdsqlite3VdbeFinalize(v);
-      p->pStmt = 0;
-    }else{
-      v->rc = rc;
-    }
-  }
-  tdsqlite3Error(db, rc);
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** Read data from a blob handle.
-*/
-SQLITE_API int tdsqlite3_blob_read(tdsqlite3_blob *pBlob, void *z, int n, int iOffset){
-  return blobReadWrite(pBlob, z, n, iOffset, tdsqlite3BtreePayloadChecked);
-}
-
-/*
-** Write data to a blob handle.
-*/
-SQLITE_API int tdsqlite3_blob_write(tdsqlite3_blob *pBlob, const void *z, int n, int iOffset){
-  return blobReadWrite(pBlob, (void *)z, n, iOffset, tdsqlite3BtreePutData);
-}
-
-/*
-** Query a blob handle for the size of the data.
-**
-** The Incrblob.nByte field is fixed for the lifetime of the Incrblob
-** so no mutex is required for access.
-*/
-SQLITE_API int tdsqlite3_blob_bytes(tdsqlite3_blob *pBlob){
-  Incrblob *p = (Incrblob *)pBlob;
-  return (p && p->pStmt) ? p->nByte : 0;
-}
-
-/*
-** Move an existing blob handle to point to a different row of the same
-** database table.
-**
-** If an error occurs, or if the specified row does not exist or does not
-** contain a blob or text value, then an error code is returned and the
-** database handle error code and message set. If this happens, then all 
-** subsequent calls to tdsqlite3_blob_xxx() functions (except blob_close()) 
-** immediately return SQLITE_ABORT.
-*/
-SQLITE_API int tdsqlite3_blob_reopen(tdsqlite3_blob *pBlob, tdsqlite3_int64 iRow){
-  int rc;
-  Incrblob *p = (Incrblob *)pBlob;
-  tdsqlite3 *db;
-
-  if( p==0 ) return SQLITE_MISUSE_BKPT;
-  db = p->db;
-  tdsqlite3_mutex_enter(db->mutex);
-
-  if( p->pStmt==0 ){
-    /* If there is no statement handle, then the blob-handle has
-    ** already been invalidated. Return SQLITE_ABORT in this case.
-    */
-    rc = SQLITE_ABORT;
-  }else{
-    char *zErr;
-    rc = blobSeekToRow(p, iRow, &zErr);
-    if( rc!=SQLITE_OK ){
-      tdsqlite3ErrorWithMsg(db, rc, (zErr ? "%s" : 0), zErr);
-      tdsqlite3DbFree(db, zErr);
-    }
-    assert( rc!=SQLITE_SCHEMA );
-  }
-
-  rc = tdsqlite3ApiExit(db, rc);
-  assert( rc==SQLITE_OK || p->pStmt==0 );
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-#endif /* #ifndef SQLITE_OMIT_INCRBLOB */
-
-/************** End of vdbeblob.c ********************************************/
-/************** Begin file vdbesort.c ****************************************/
-/*
-** 2011-07-09
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code for the VdbeSorter object, used in concert with
-** a VdbeCursor to sort large numbers of keys for CREATE INDEX statements
-** or by SELECT statements with ORDER BY clauses that cannot be satisfied
-** using indexes and without LIMIT clauses.
-**
-** The VdbeSorter object implements a multi-threaded external merge sort
-** algorithm that is efficient even if the number of elements being sorted
-** exceeds the available memory.
-**
-** Here is the (internal, non-API) interface between this module and the
-** rest of the SQLite system:
-**
-**    tdsqlite3VdbeSorterInit()       Create a new VdbeSorter object.
-**
-**    tdsqlite3VdbeSorterWrite()      Add a single new row to the VdbeSorter
-**                                  object.  The row is a binary blob in the
-**                                  OP_MakeRecord format that contains both
-**                                  the ORDER BY key columns and result columns
-**                                  in the case of a SELECT w/ ORDER BY, or
-**                                  the complete record for an index entry
-**                                  in the case of a CREATE INDEX.
-**
-**    tdsqlite3VdbeSorterRewind()     Sort all content previously added.
-**                                  Position the read cursor on the
-**                                  first sorted element.
-**
-**    tdsqlite3VdbeSorterNext()       Advance the read cursor to the next sorted
-**                                  element.
-**
-**    tdsqlite3VdbeSorterRowkey()     Return the complete binary blob for the
-**                                  row currently under the read cursor.
-**
-**    tdsqlite3VdbeSorterCompare()    Compare the binary blob for the row
-**                                  currently under the read cursor against
-**                                  another binary blob X and report if
-**                                  X is strictly less than the read cursor.
-**                                  Used to enforce uniqueness in a
-**                                  CREATE UNIQUE INDEX statement.
-**
-**    tdsqlite3VdbeSorterClose()      Close the VdbeSorter object and reclaim
-**                                  all resources.
-**
-**    tdsqlite3VdbeSorterReset()      Refurbish the VdbeSorter for reuse.  This
-**                                  is like Close() followed by Init() only
-**                                  much faster.
-**
-** The interfaces above must be called in a particular order.  Write() can 
-** only occur in between Init()/Reset() and Rewind().  Next(), Rowkey(), and
-** Compare() can only occur in between Rewind() and Close()/Reset(). i.e.
-**
-**   Init()
-**   for each record: Write()
-**   Rewind()
-**     Rowkey()/Compare()
-**   Next() 
-**   Close()
-**
-** Algorithm:
-**
-** Records passed to the sorter via calls to Write() are initially held 
-** unsorted in main memory. Assuming the amount of memory used never exceeds
-** a threshold, when Rewind() is called the set of records is sorted using
-** an in-memory merge sort. In this case, no temporary files are required
-** and subsequent calls to Rowkey(), Next() and Compare() read records 
-** directly from main memory.
-**
-** If the amount of space used to store records in main memory exceeds the
-** threshold, then the set of records currently in memory are sorted and
-** written to a temporary file in "Packed Memory Array" (PMA) format.
-** A PMA created at this point is known as a "level-0 PMA". Higher levels
-** of PMAs may be created by merging existing PMAs together - for example
-** merging two or more level-0 PMAs together creates a level-1 PMA.
-**
-** The threshold for the amount of main memory to use before flushing 
-** records to a PMA is roughly the same as the limit configured for the
-** page-cache of the main database. Specifically, the threshold is set to 
-** the value returned by "PRAGMA main.page_size" multipled by 
-** that returned by "PRAGMA main.cache_size", in bytes.
-**
-** If the sorter is running in single-threaded mode, then all PMAs generated
-** are appended to a single temporary file. Or, if the sorter is running in
-** multi-threaded mode then up to (N+1) temporary files may be opened, where
-** N is the configured number of worker threads. In this case, instead of
-** sorting the records and writing the PMA to a temporary file itself, the
-** calling thread usually launches a worker thread to do so. Except, if
-** there are already N worker threads running, the main thread does the work
-** itself.
-**
-** The sorter is running in multi-threaded mode if (a) the library was built
-** with pre-processor symbol SQLITE_MAX_WORKER_THREADS set to a value greater
-** than zero, and (b) worker threads have been enabled at runtime by calling
-** "PRAGMA threads=N" with some value of N greater than 0.
-**
-** When Rewind() is called, any data remaining in memory is flushed to a 
-** final PMA. So at this point the data is stored in some number of sorted
-** PMAs within temporary files on disk.
-**
-** If there are fewer than SORTER_MAX_MERGE_COUNT PMAs in total and the
-** sorter is running in single-threaded mode, then these PMAs are merged
-** incrementally as keys are retreived from the sorter by the VDBE.  The
-** MergeEngine object, described in further detail below, performs this
-** merge.
-**
-** Or, if running in multi-threaded mode, then a background thread is
-** launched to merge the existing PMAs. Once the background thread has
-** merged T bytes of data into a single sorted PMA, the main thread 
-** begins reading keys from that PMA while the background thread proceeds
-** with merging the next T bytes of data. And so on.
-**
-** Parameter T is set to half the value of the memory threshold used 
-** by Write() above to determine when to create a new PMA.
-**
-** If there are more than SORTER_MAX_MERGE_COUNT PMAs in total when 
-** Rewind() is called, then a hierarchy of incremental-merges is used. 
-** First, T bytes of data from the first SORTER_MAX_MERGE_COUNT PMAs on 
-** disk are merged together. Then T bytes of data from the second set, and
-** so on, such that no operation ever merges more than SORTER_MAX_MERGE_COUNT
-** PMAs at a time. This done is to improve locality.
-**
-** If running in multi-threaded mode and there are more than
-** SORTER_MAX_MERGE_COUNT PMAs on disk when Rewind() is called, then more
-** than one background thread may be created. Specifically, there may be
-** one background thread for each temporary file on disk, and one background
-** thread to merge the output of each of the others to a single PMA for
-** the main thread to read from.
-*/
-/* #include "sqliteInt.h" */
-/* #include "vdbeInt.h" */
-
-/* 
-** If SQLITE_DEBUG_SORTER_THREADS is defined, this module outputs various
-** messages to stderr that may be helpful in understanding the performance
-** characteristics of the sorter in multi-threaded mode.
-*/
-#if 0
-# define SQLITE_DEBUG_SORTER_THREADS 1
-#endif
-
-/*
-** Hard-coded maximum amount of data to accumulate in memory before flushing
-** to a level 0 PMA. The purpose of this limit is to prevent various integer
-** overflows. 512MiB.
-*/
-#define SQLITE_MAX_PMASZ    (1<<29)
-
-/*
-** Private objects used by the sorter
-*/
-typedef struct MergeEngine MergeEngine;     /* Merge PMAs together */
-typedef struct PmaReader PmaReader;         /* Incrementally read one PMA */
-typedef struct PmaWriter PmaWriter;         /* Incrementally write one PMA */
-typedef struct SorterRecord SorterRecord;   /* A record being sorted */
-typedef struct SortSubtask SortSubtask;     /* A sub-task in the sort process */
-typedef struct SorterFile SorterFile;       /* Temporary file object wrapper */
-typedef struct SorterList SorterList;       /* In-memory list of records */
-typedef struct IncrMerger IncrMerger;       /* Read & merge multiple PMAs */
-
-/*
-** A container for a temp file handle and the current amount of data 
-** stored in the file.
-*/
-struct SorterFile {
-  tdsqlite3_file *pFd;              /* File handle */
-  i64 iEof;                       /* Bytes of data stored in pFd */
-};
-
-/*
-** An in-memory list of objects to be sorted.
-**
-** If aMemory==0 then each object is allocated separately and the objects
-** are connected using SorterRecord.u.pNext.  If aMemory!=0 then all objects
-** are stored in the aMemory[] bulk memory, one right after the other, and
-** are connected using SorterRecord.u.iNext.
-*/
-struct SorterList {
-  SorterRecord *pList;            /* Linked list of records */
-  u8 *aMemory;                    /* If non-NULL, bulk memory to hold pList */
-  int szPMA;                      /* Size of pList as PMA in bytes */
-};
-
-/*
-** The MergeEngine object is used to combine two or more smaller PMAs into
-** one big PMA using a merge operation.  Separate PMAs all need to be
-** combined into one big PMA in order to be able to step through the sorted
-** records in order.
-**
-** The aReadr[] array contains a PmaReader object for each of the PMAs being
-** merged.  An aReadr[] object either points to a valid key or else is at EOF.
-** ("EOF" means "End Of File".  When aReadr[] is at EOF there is no more data.)
-** For the purposes of the paragraphs below, we assume that the array is
-** actually N elements in size, where N is the smallest power of 2 greater
-** to or equal to the number of PMAs being merged. The extra aReadr[] elements
-** are treated as if they are empty (always at EOF).
-**
-** The aTree[] array is also N elements in size. The value of N is stored in
-** the MergeEngine.nTree variable.
-**
-** The final (N/2) elements of aTree[] contain the results of comparing
-** pairs of PMA keys together. Element i contains the result of 
-** comparing aReadr[2*i-N] and aReadr[2*i-N+1]. Whichever key is smaller, the
-** aTree element is set to the index of it. 
-**
-** For the purposes of this comparison, EOF is considered greater than any
-** other key value. If the keys are equal (only possible with two EOF
-** values), it doesn't matter which index is stored.
-**
-** The (N/4) elements of aTree[] that precede the final (N/2) described 
-** above contains the index of the smallest of each block of 4 PmaReaders
-** And so on. So that aTree[1] contains the index of the PmaReader that 
-** currently points to the smallest key value. aTree[0] is unused.
-**
-** Example:
-**
-**     aReadr[0] -> Banana
-**     aReadr[1] -> Feijoa
-**     aReadr[2] -> Elderberry
-**     aReadr[3] -> Currant
-**     aReadr[4] -> Grapefruit
-**     aReadr[5] -> Apple
-**     aReadr[6] -> Durian
-**     aReadr[7] -> EOF
-**
-**     aTree[] = { X, 5   0, 5    0, 3, 5, 6 }
-**
-** The current element is "Apple" (the value of the key indicated by 
-** PmaReader 5). When the Next() operation is invoked, PmaReader 5 will
-** be advanced to the next key in its segment. Say the next key is
-** "Eggplant":
-**
-**     aReadr[5] -> Eggplant
-**
-** The contents of aTree[] are updated first by comparing the new PmaReader
-** 5 key to the current key of PmaReader 4 (still "Grapefruit"). The PmaReader
-** 5 value is still smaller, so aTree[6] is set to 5. And so on up the tree.
-** The value of PmaReader 6 - "Durian" - is now smaller than that of PmaReader
-** 5, so aTree[3] is set to 6. Key 0 is smaller than key 6 (Banana<Durian),
-** so the value written into element 1 of the array is 0. As follows:
-**
-**     aTree[] = { X, 0   0, 6    0, 3, 5, 6 }
-**
-** In other words, each time we advance to the next sorter element, log2(N)
-** key comparison operations are required, where N is the number of segments
-** being merged (rounded up to the next power of 2).
-*/
-struct MergeEngine {
-  int nTree;                 /* Used size of aTree/aReadr (power of 2) */
-  SortSubtask *pTask;        /* Used by this thread only */
-  int *aTree;                /* Current state of incremental merge */
-  PmaReader *aReadr;         /* Array of PmaReaders to merge data from */
-};
-
-/*
-** This object represents a single thread of control in a sort operation.
-** Exactly VdbeSorter.nTask instances of this object are allocated
-** as part of each VdbeSorter object. Instances are never allocated any
-** other way. VdbeSorter.nTask is set to the number of worker threads allowed
-** (see SQLITE_CONFIG_WORKER_THREADS) plus one (the main thread).  Thus for
-** single-threaded operation, there is exactly one instance of this object
-** and for multi-threaded operation there are two or more instances.
-**
-** Essentially, this structure contains all those fields of the VdbeSorter
-** structure for which each thread requires a separate instance. For example,
-** each thread requries its own UnpackedRecord object to unpack records in
-** as part of comparison operations.
-**
-** Before a background thread is launched, variable bDone is set to 0. Then, 
-** right before it exits, the thread itself sets bDone to 1. This is used for 
-** two purposes:
-**
-**   1. When flushing the contents of memory to a level-0 PMA on disk, to
-**      attempt to select a SortSubtask for which there is not already an
-**      active background thread (since doing so causes the main thread
-**      to block until it finishes).
-**
-**   2. If SQLITE_DEBUG_SORTER_THREADS is defined, to determine if a call
-**      to tdsqlite3ThreadJoin() is likely to block. Cases that are likely to
-**      block provoke debugging output.
-**
-** In both cases, the effects of the main thread seeing (bDone==0) even
-** after the thread has finished are not dire. So we don't worry about
-** memory barriers and such here.
-*/
-typedef int (*SorterCompare)(SortSubtask*,int*,const void*,int,const void*,int);
-struct SortSubtask {
-  SQLiteThread *pThread;          /* Background thread, if any */
-  int bDone;                      /* Set if thread is finished but not joined */
-  VdbeSorter *pSorter;            /* Sorter that owns this sub-task */
-  UnpackedRecord *pUnpacked;      /* Space to unpack a record */
-  SorterList list;                /* List for thread to write to a PMA */
-  int nPMA;                       /* Number of PMAs currently in file */
-  SorterCompare xCompare;         /* Compare function to use */
-  SorterFile file;                /* Temp file for level-0 PMAs */
-  SorterFile file2;               /* Space for other PMAs */
-};
-
-
-/*
-** Main sorter structure. A single instance of this is allocated for each 
-** sorter cursor created by the VDBE.
-**
-** mxKeysize:
-**   As records are added to the sorter by calls to tdsqlite3VdbeSorterWrite(),
-**   this variable is updated so as to be set to the size on disk of the
-**   largest record in the sorter.
-*/
-struct VdbeSorter {
-  int mnPmaSize;                  /* Minimum PMA size, in bytes */
-  int mxPmaSize;                  /* Maximum PMA size, in bytes.  0==no limit */
-  int mxKeysize;                  /* Largest serialized key seen so far */
-  int pgsz;                       /* Main database page size */
-  PmaReader *pReader;             /* Readr data from here after Rewind() */
-  MergeEngine *pMerger;           /* Or here, if bUseThreads==0 */
-  tdsqlite3 *db;                    /* Database connection */
-  KeyInfo *pKeyInfo;              /* How to compare records */
-  UnpackedRecord *pUnpacked;      /* Used by VdbeSorterCompare() */
-  SorterList list;                /* List of in-memory records */
-  int iMemory;                    /* Offset of free space in list.aMemory */
-  int nMemory;                    /* Size of list.aMemory allocation in bytes */
-  u8 bUsePMA;                     /* True if one or more PMAs created */
-  u8 bUseThreads;                 /* True to use background threads */
-  u8 iPrev;                       /* Previous thread used to flush PMA */
-  u8 nTask;                       /* Size of aTask[] array */
-  u8 typeMask;
-  SortSubtask aTask[1];           /* One or more subtasks */
-};
-
-#define SORTER_TYPE_INTEGER 0x01
-#define SORTER_TYPE_TEXT    0x02
-
-/*
-** An instance of the following object is used to read records out of a
-** PMA, in sorted order.  The next key to be read is cached in nKey/aKey.
-** aKey might point into aMap or into aBuffer.  If neither of those locations
-** contain a contiguous representation of the key, then aAlloc is allocated
-** and the key is copied into aAlloc and aKey is made to poitn to aAlloc.
-**
-** pFd==0 at EOF.
-*/
-struct PmaReader {
-  i64 iReadOff;               /* Current read offset */
-  i64 iEof;                   /* 1 byte past EOF for this PmaReader */
-  int nAlloc;                 /* Bytes of space at aAlloc */
-  int nKey;                   /* Number of bytes in key */
-  tdsqlite3_file *pFd;          /* File handle we are reading from */
-  u8 *aAlloc;                 /* Space for aKey if aBuffer and pMap wont work */
-  u8 *aKey;                   /* Pointer to current key */
-  u8 *aBuffer;                /* Current read buffer */
-  int nBuffer;                /* Size of read buffer in bytes */
-  u8 *aMap;                   /* Pointer to mapping of entire file */
-  IncrMerger *pIncr;          /* Incremental merger */
-};
-
-/*
-** Normally, a PmaReader object iterates through an existing PMA stored 
-** within a temp file. However, if the PmaReader.pIncr variable points to
-** an object of the following type, it may be used to iterate/merge through
-** multiple PMAs simultaneously.
-**
-** There are two types of IncrMerger object - single (bUseThread==0) and 
-** multi-threaded (bUseThread==1). 
-**
-** A multi-threaded IncrMerger object uses two temporary files - aFile[0] 
-** and aFile[1]. Neither file is allowed to grow to more than mxSz bytes in 
-** size. When the IncrMerger is initialized, it reads enough data from 
-** pMerger to populate aFile[0]. It then sets variables within the 
-** corresponding PmaReader object to read from that file and kicks off 
-** a background thread to populate aFile[1] with the next mxSz bytes of 
-** sorted record data from pMerger. 
-**
-** When the PmaReader reaches the end of aFile[0], it blocks until the
-** background thread has finished populating aFile[1]. It then exchanges
-** the contents of the aFile[0] and aFile[1] variables within this structure,
-** sets the PmaReader fields to read from the new aFile[0] and kicks off
-** another background thread to populate the new aFile[1]. And so on, until
-** the contents of pMerger are exhausted.
-**
-** A single-threaded IncrMerger does not open any temporary files of its
-** own. Instead, it has exclusive access to mxSz bytes of space beginning
-** at offset iStartOff of file pTask->file2. And instead of using a 
-** background thread to prepare data for the PmaReader, with a single
-** threaded IncrMerger the allocate part of pTask->file2 is "refilled" with
-** keys from pMerger by the calling thread whenever the PmaReader runs out
-** of data.
-*/
-struct IncrMerger {
-  SortSubtask *pTask;             /* Task that owns this merger */
-  MergeEngine *pMerger;           /* Merge engine thread reads data from */
-  i64 iStartOff;                  /* Offset to start writing file at */
-  int mxSz;                       /* Maximum bytes of data to store */
-  int bEof;                       /* Set to true when merge is finished */
-  int bUseThread;                 /* True to use a bg thread for this object */
-  SorterFile aFile[2];            /* aFile[0] for reading, [1] for writing */
-};
-
-/*
-** An instance of this object is used for writing a PMA.
-**
-** The PMA is written one record at a time.  Each record is of an arbitrary
-** size.  But I/O is more efficient if it occurs in page-sized blocks where
-** each block is aligned on a page boundary.  This object caches writes to
-** the PMA so that aligned, page-size blocks are written.
-*/
-struct PmaWriter {
-  int eFWErr;                     /* Non-zero if in an error state */
-  u8 *aBuffer;                    /* Pointer to write buffer */
-  int nBuffer;                    /* Size of write buffer in bytes */
-  int iBufStart;                  /* First byte of buffer to write */
-  int iBufEnd;                    /* Last byte of buffer to write */
-  i64 iWriteOff;                  /* Offset of start of buffer in file */
-  tdsqlite3_file *pFd;              /* File handle to write to */
-};
-
-/*
-** This object is the header on a single record while that record is being
-** held in memory and prior to being written out as part of a PMA.
-**
-** How the linked list is connected depends on how memory is being managed
-** by this module. If using a separate allocation for each in-memory record
-** (VdbeSorter.list.aMemory==0), then the list is always connected using the
-** SorterRecord.u.pNext pointers.
-**
-** Or, if using the single large allocation method (VdbeSorter.list.aMemory!=0),
-** then while records are being accumulated the list is linked using the
-** SorterRecord.u.iNext offset. This is because the aMemory[] array may
-** be tdsqlite3Realloc()ed while records are being accumulated. Once the VM
-** has finished passing records to the sorter, or when the in-memory buffer
-** is full, the list is sorted. As part of the sorting process, it is
-** converted to use the SorterRecord.u.pNext pointers. See function
-** vdbeSorterSort() for details.
-*/
-struct SorterRecord {
-  int nVal;                       /* Size of the record in bytes */
-  union {
-    SorterRecord *pNext;          /* Pointer to next record in list */
-    int iNext;                    /* Offset within aMemory of next record */
-  } u;
-  /* The data for the record immediately follows this header */
-};
-
-/* Return a pointer to the buffer containing the record data for SorterRecord
-** object p. Should be used as if:
-**
-**   void *SRVAL(SorterRecord *p) { return (void*)&p[1]; }
-*/
-#define SRVAL(p) ((void*)((SorterRecord*)(p) + 1))
-
-
-/* Maximum number of PMAs that a single MergeEngine can merge */
-#define SORTER_MAX_MERGE_COUNT 16
-
-static int vdbeIncrSwap(IncrMerger*);
-static void vdbeIncrFree(IncrMerger *);
-
-/*
-** Free all memory belonging to the PmaReader object passed as the
-** argument. All structure fields are set to zero before returning.
-*/
-static void vdbePmaReaderClear(PmaReader *pReadr){
-  tdsqlite3_free(pReadr->aAlloc);
-  tdsqlite3_free(pReadr->aBuffer);
-  if( pReadr->aMap ) tdsqlite3OsUnfetch(pReadr->pFd, 0, pReadr->aMap);
-  vdbeIncrFree(pReadr->pIncr);
-  memset(pReadr, 0, sizeof(PmaReader));
-}
-
-/*
-** Read the next nByte bytes of data from the PMA p.
-** If successful, set *ppOut to point to a buffer containing the data
-** and return SQLITE_OK. Otherwise, if an error occurs, return an SQLite
-** error code.
-**
-** The buffer returned in *ppOut is only valid until the
-** next call to this function.
-*/
-static int vdbePmaReadBlob(
-  PmaReader *p,                   /* PmaReader from which to take the blob */
-  int nByte,                      /* Bytes of data to read */
-  u8 **ppOut                      /* OUT: Pointer to buffer containing data */
-){
-  int iBuf;                       /* Offset within buffer to read from */
-  int nAvail;                     /* Bytes of data available in buffer */
-
-  if( p->aMap ){
-    *ppOut = &p->aMap[p->iReadOff];
-    p->iReadOff += nByte;
-    return SQLITE_OK;
-  }
-
-  assert( p->aBuffer );
-
-  /* If there is no more data to be read from the buffer, read the next 
-  ** p->nBuffer bytes of data from the file into it. Or, if there are less
-  ** than p->nBuffer bytes remaining in the PMA, read all remaining data.  */
-  iBuf = p->iReadOff % p->nBuffer;
-  if( iBuf==0 ){
-    int nRead;                    /* Bytes to read from disk */
-    int rc;                       /* tdsqlite3OsRead() return code */
-
-    /* Determine how many bytes of data to read. */
-    if( (p->iEof - p->iReadOff) > (i64)p->nBuffer ){
-      nRead = p->nBuffer;
-    }else{
-      nRead = (int)(p->iEof - p->iReadOff);
-    }
-    assert( nRead>0 );
-
-    /* Readr data from the file. Return early if an error occurs. */
-    rc = tdsqlite3OsRead(p->pFd, p->aBuffer, nRead, p->iReadOff);
-    assert( rc!=SQLITE_IOERR_SHORT_READ );
-    if( rc!=SQLITE_OK ) return rc;
-  }
-  nAvail = p->nBuffer - iBuf; 
-
-  if( nByte<=nAvail ){
-    /* The requested data is available in the in-memory buffer. In this
-    ** case there is no need to make a copy of the data, just return a 
-    ** pointer into the buffer to the caller.  */
-    *ppOut = &p->aBuffer[iBuf];
-    p->iReadOff += nByte;
-  }else{
-    /* The requested data is not all available in the in-memory buffer.
-    ** In this case, allocate space at p->aAlloc[] to copy the requested
-    ** range into. Then return a copy of pointer p->aAlloc to the caller.  */
-    int nRem;                     /* Bytes remaining to copy */
-
-    /* Extend the p->aAlloc[] allocation if required. */
-    if( p->nAlloc<nByte ){
-      u8 *aNew;
-      tdsqlite3_int64 nNew = MAX(128, 2*(tdsqlite3_int64)p->nAlloc);
-      while( nByte>nNew ) nNew = nNew*2;
-      aNew = tdsqlite3Realloc(p->aAlloc, nNew);
-      if( !aNew ) return SQLITE_NOMEM_BKPT;
-      p->nAlloc = nNew;
-      p->aAlloc = aNew;
-    }
-
-    /* Copy as much data as is available in the buffer into the start of
-    ** p->aAlloc[].  */
-    memcpy(p->aAlloc, &p->aBuffer[iBuf], nAvail);
-    p->iReadOff += nAvail;
-    nRem = nByte - nAvail;
-
-    /* The following loop copies up to p->nBuffer bytes per iteration into
-    ** the p->aAlloc[] buffer.  */
-    while( nRem>0 ){
-      int rc;                     /* vdbePmaReadBlob() return code */
-      int nCopy;                  /* Number of bytes to copy */
-      u8 *aNext;                  /* Pointer to buffer to copy data from */
-
-      nCopy = nRem;
-      if( nRem>p->nBuffer ) nCopy = p->nBuffer;
-      rc = vdbePmaReadBlob(p, nCopy, &aNext);
-      if( rc!=SQLITE_OK ) return rc;
-      assert( aNext!=p->aAlloc );
-      memcpy(&p->aAlloc[nByte - nRem], aNext, nCopy);
-      nRem -= nCopy;
-    }
-
-    *ppOut = p->aAlloc;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Read a varint from the stream of data accessed by p. Set *pnOut to
-** the value read.
-*/
-static int vdbePmaReadVarint(PmaReader *p, u64 *pnOut){
-  int iBuf;
-
-  if( p->aMap ){
-    p->iReadOff += tdsqlite3GetVarint(&p->aMap[p->iReadOff], pnOut);
-  }else{
-    iBuf = p->iReadOff % p->nBuffer;
-    if( iBuf && (p->nBuffer-iBuf)>=9 ){
-      p->iReadOff += tdsqlite3GetVarint(&p->aBuffer[iBuf], pnOut);
-    }else{
-      u8 aVarint[16], *a;
-      int i = 0, rc;
-      do{
-        rc = vdbePmaReadBlob(p, 1, &a);
-        if( rc ) return rc;
-        aVarint[(i++)&0xf] = a[0];
-      }while( (a[0]&0x80)!=0 );
-      tdsqlite3GetVarint(aVarint, pnOut);
-    }
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Attempt to memory map file pFile. If successful, set *pp to point to the
-** new mapping and return SQLITE_OK. If the mapping is not attempted 
-** (because the file is too large or the VFS layer is configured not to use
-** mmap), return SQLITE_OK and set *pp to NULL.
-**
-** Or, if an error occurs, return an SQLite error code. The final value of
-** *pp is undefined in this case.
-*/
-static int vdbeSorterMapFile(SortSubtask *pTask, SorterFile *pFile, u8 **pp){
-  int rc = SQLITE_OK;
-  if( pFile->iEof<=(i64)(pTask->pSorter->db->nMaxSorterMmap) ){
-    tdsqlite3_file *pFd = pFile->pFd;
-    if( pFd->pMethods->iVersion>=3 ){
-      rc = tdsqlite3OsFetch(pFd, 0, (int)pFile->iEof, (void**)pp);
-      testcase( rc!=SQLITE_OK );
-    }
-  }
-  return rc;
-}
-
-/*
-** Attach PmaReader pReadr to file pFile (if it is not already attached to
-** that file) and seek it to offset iOff within the file.  Return SQLITE_OK 
-** if successful, or an SQLite error code if an error occurs.
-*/
-static int vdbePmaReaderSeek(
-  SortSubtask *pTask,             /* Task context */
-  PmaReader *pReadr,              /* Reader whose cursor is to be moved */
-  SorterFile *pFile,              /* Sorter file to read from */
-  i64 iOff                        /* Offset in pFile */
-){
-  int rc = SQLITE_OK;
-
-  assert( pReadr->pIncr==0 || pReadr->pIncr->bEof==0 );
-
-  if( tdsqlite3FaultSim(201) ) return SQLITE_IOERR_READ;
-  if( pReadr->aMap ){
-    tdsqlite3OsUnfetch(pReadr->pFd, 0, pReadr->aMap);
-    pReadr->aMap = 0;
-  }
-  pReadr->iReadOff = iOff;
-  pReadr->iEof = pFile->iEof;
-  pReadr->pFd = pFile->pFd;
-
-  rc = vdbeSorterMapFile(pTask, pFile, &pReadr->aMap);
-  if( rc==SQLITE_OK && pReadr->aMap==0 ){
-    int pgsz = pTask->pSorter->pgsz;
-    int iBuf = pReadr->iReadOff % pgsz;
-    if( pReadr->aBuffer==0 ){
-      pReadr->aBuffer = (u8*)tdsqlite3Malloc(pgsz);
-      if( pReadr->aBuffer==0 ) rc = SQLITE_NOMEM_BKPT;
-      pReadr->nBuffer = pgsz;
-    }
-    if( rc==SQLITE_OK && iBuf ){
-      int nRead = pgsz - iBuf;
-      if( (pReadr->iReadOff + nRead) > pReadr->iEof ){
-        nRead = (int)(pReadr->iEof - pReadr->iReadOff);
-      }
-      rc = tdsqlite3OsRead(
-          pReadr->pFd, &pReadr->aBuffer[iBuf], nRead, pReadr->iReadOff
-      );
-      testcase( rc!=SQLITE_OK );
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Advance PmaReader pReadr to the next key in its PMA. Return SQLITE_OK if
-** no error occurs, or an SQLite error code if one does.
-*/
-static int vdbePmaReaderNext(PmaReader *pReadr){
-  int rc = SQLITE_OK;             /* Return Code */
-  u64 nRec = 0;                   /* Size of record in bytes */
-
-
-  if( pReadr->iReadOff>=pReadr->iEof ){
-    IncrMerger *pIncr = pReadr->pIncr;
-    int bEof = 1;
-    if( pIncr ){
-      rc = vdbeIncrSwap(pIncr);
-      if( rc==SQLITE_OK && pIncr->bEof==0 ){
-        rc = vdbePmaReaderSeek(
-            pIncr->pTask, pReadr, &pIncr->aFile[0], pIncr->iStartOff
-        );
-        bEof = 0;
-      }
-    }
-
-    if( bEof ){
-      /* This is an EOF condition */
-      vdbePmaReaderClear(pReadr);
-      testcase( rc!=SQLITE_OK );
-      return rc;
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = vdbePmaReadVarint(pReadr, &nRec);
-  }
-  if( rc==SQLITE_OK ){
-    pReadr->nKey = (int)nRec;
-    rc = vdbePmaReadBlob(pReadr, (int)nRec, &pReadr->aKey);
-    testcase( rc!=SQLITE_OK );
-  }
-
-  return rc;
-}
-
-/*
-** Initialize PmaReader pReadr to scan through the PMA stored in file pFile
-** starting at offset iStart and ending at offset iEof-1. This function 
-** leaves the PmaReader pointing to the first key in the PMA (or EOF if the 
-** PMA is empty).
-**
-** If the pnByte parameter is NULL, then it is assumed that the file 
-** contains a single PMA, and that that PMA omits the initial length varint.
-*/
-static int vdbePmaReaderInit(
-  SortSubtask *pTask,             /* Task context */
-  SorterFile *pFile,              /* Sorter file to read from */
-  i64 iStart,                     /* Start offset in pFile */
-  PmaReader *pReadr,              /* PmaReader to populate */
-  i64 *pnByte                     /* IN/OUT: Increment this value by PMA size */
-){
-  int rc;
-
-  assert( pFile->iEof>iStart );
-  assert( pReadr->aAlloc==0 && pReadr->nAlloc==0 );
-  assert( pReadr->aBuffer==0 );
-  assert( pReadr->aMap==0 );
-
-  rc = vdbePmaReaderSeek(pTask, pReadr, pFile, iStart);
-  if( rc==SQLITE_OK ){
-    u64 nByte = 0;                 /* Size of PMA in bytes */
-    rc = vdbePmaReadVarint(pReadr, &nByte);
-    pReadr->iEof = pReadr->iReadOff + nByte;
-    *pnByte += nByte;
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = vdbePmaReaderNext(pReadr);
-  }
-  return rc;
-}
-
-/*
-** A version of vdbeSorterCompare() that assumes that it has already been
-** determined that the first field of key1 is equal to the first field of 
-** key2.
-*/
-static int vdbeSorterCompareTail(
-  SortSubtask *pTask,             /* Subtask context (for pKeyInfo) */
-  int *pbKey2Cached,              /* True if pTask->pUnpacked is pKey2 */
-  const void *pKey1, int nKey1,   /* Left side of comparison */
-  const void *pKey2, int nKey2    /* Right side of comparison */
-){
-  UnpackedRecord *r2 = pTask->pUnpacked;
-  if( *pbKey2Cached==0 ){
-    tdsqlite3VdbeRecordUnpack(pTask->pSorter->pKeyInfo, nKey2, pKey2, r2);
-    *pbKey2Cached = 1;
-  }
-  return tdsqlite3VdbeRecordCompareWithSkip(nKey1, pKey1, r2, 1);
-}
-
-/*
-** Compare key1 (buffer pKey1, size nKey1 bytes) with key2 (buffer pKey2, 
-** size nKey2 bytes). Use (pTask->pKeyInfo) for the collation sequences
-** used by the comparison. Return the result of the comparison.
-**
-** If IN/OUT parameter *pbKey2Cached is true when this function is called,
-** it is assumed that (pTask->pUnpacked) contains the unpacked version
-** of key2. If it is false, (pTask->pUnpacked) is populated with the unpacked
-** version of key2 and *pbKey2Cached set to true before returning.
-**
-** If an OOM error is encountered, (pTask->pUnpacked->error_rc) is set
-** to SQLITE_NOMEM.
-*/
-static int vdbeSorterCompare(
-  SortSubtask *pTask,             /* Subtask context (for pKeyInfo) */
-  int *pbKey2Cached,              /* True if pTask->pUnpacked is pKey2 */
-  const void *pKey1, int nKey1,   /* Left side of comparison */
-  const void *pKey2, int nKey2    /* Right side of comparison */
-){
-  UnpackedRecord *r2 = pTask->pUnpacked;
-  if( !*pbKey2Cached ){
-    tdsqlite3VdbeRecordUnpack(pTask->pSorter->pKeyInfo, nKey2, pKey2, r2);
-    *pbKey2Cached = 1;
-  }
-  return tdsqlite3VdbeRecordCompare(nKey1, pKey1, r2);
-}
-
-/*
-** A specially optimized version of vdbeSorterCompare() that assumes that
-** the first field of each key is a TEXT value and that the collation
-** sequence to compare them with is BINARY.
-*/
-static int vdbeSorterCompareText(
-  SortSubtask *pTask,             /* Subtask context (for pKeyInfo) */
-  int *pbKey2Cached,              /* True if pTask->pUnpacked is pKey2 */
-  const void *pKey1, int nKey1,   /* Left side of comparison */
-  const void *pKey2, int nKey2    /* Right side of comparison */
-){
-  const u8 * const p1 = (const u8 * const)pKey1;
-  const u8 * const p2 = (const u8 * const)pKey2;
-  const u8 * const v1 = &p1[ p1[0] ];   /* Pointer to value 1 */
-  const u8 * const v2 = &p2[ p2[0] ];   /* Pointer to value 2 */
-
-  int n1;
-  int n2;
-  int res;
-
-  getVarint32(&p1[1], n1);
-  getVarint32(&p2[1], n2);
-  res = memcmp(v1, v2, (MIN(n1, n2) - 13)/2);
-  if( res==0 ){
-    res = n1 - n2;
-  }
-
-  if( res==0 ){
-    if( pTask->pSorter->pKeyInfo->nKeyField>1 ){
-      res = vdbeSorterCompareTail(
-          pTask, pbKey2Cached, pKey1, nKey1, pKey2, nKey2
-      );
-    }
-  }else{
-    assert( !(pTask->pSorter->pKeyInfo->aSortFlags[0]&KEYINFO_ORDER_BIGNULL) );
-    if( pTask->pSorter->pKeyInfo->aSortFlags[0] ){
-      res = res * -1;
-    }
-  }
-
-  return res;
-}
-
-/*
-** A specially optimized version of vdbeSorterCompare() that assumes that
-** the first field of each key is an INTEGER value.
-*/
-static int vdbeSorterCompareInt(
-  SortSubtask *pTask,             /* Subtask context (for pKeyInfo) */
-  int *pbKey2Cached,              /* True if pTask->pUnpacked is pKey2 */
-  const void *pKey1, int nKey1,   /* Left side of comparison */
-  const void *pKey2, int nKey2    /* Right side of comparison */
-){
-  const u8 * const p1 = (const u8 * const)pKey1;
-  const u8 * const p2 = (const u8 * const)pKey2;
-  const int s1 = p1[1];                 /* Left hand serial type */
-  const int s2 = p2[1];                 /* Right hand serial type */
-  const u8 * const v1 = &p1[ p1[0] ];   /* Pointer to value 1 */
-  const u8 * const v2 = &p2[ p2[0] ];   /* Pointer to value 2 */
-  int res;                              /* Return value */
-
-  assert( (s1>0 && s1<7) || s1==8 || s1==9 );
-  assert( (s2>0 && s2<7) || s2==8 || s2==9 );
-
-  if( s1==s2 ){
-    /* The two values have the same sign. Compare using memcmp(). */
-    static const u8 aLen[] = {0, 1, 2, 3, 4, 6, 8, 0, 0, 0 };
-    const u8 n = aLen[s1];
-    int i;
-    res = 0;
-    for(i=0; i<n; i++){
-      if( (res = v1[i] - v2[i])!=0 ){
-        if( ((v1[0] ^ v2[0]) & 0x80)!=0 ){
-          res = v1[0] & 0x80 ? -1 : +1;
-        }
-        break;
-      }
-    }
-  }else if( s1>7 && s2>7 ){
-    res = s1 - s2;
-  }else{
-    if( s2>7 ){
-      res = +1;
-    }else if( s1>7 ){
-      res = -1;
-    }else{
-      res = s1 - s2;
-    }
-    assert( res!=0 );
-
-    if( res>0 ){
-      if( *v1 & 0x80 ) res = -1;
-    }else{
-      if( *v2 & 0x80 ) res = +1;
-    }
-  }
-
-  if( res==0 ){
-    if( pTask->pSorter->pKeyInfo->nKeyField>1 ){
-      res = vdbeSorterCompareTail(
-          pTask, pbKey2Cached, pKey1, nKey1, pKey2, nKey2
-      );
-    }
-  }else if( pTask->pSorter->pKeyInfo->aSortFlags[0] ){
-    assert( !(pTask->pSorter->pKeyInfo->aSortFlags[0]&KEYINFO_ORDER_BIGNULL) );
-    res = res * -1;
-  }
-
-  return res;
-}
-
-/*
-** Initialize the temporary index cursor just opened as a sorter cursor.
-**
-** Usually, the sorter module uses the value of (pCsr->pKeyInfo->nKeyField)
-** to determine the number of fields that should be compared from the
-** records being sorted. However, if the value passed as argument nField
-** is non-zero and the sorter is able to guarantee a stable sort, nField
-** is used instead. This is used when sorting records for a CREATE INDEX
-** statement. In this case, keys are always delivered to the sorter in
-** order of the primary key, which happens to be make up the final part 
-** of the records being sorted. So if the sort is stable, there is never
-** any reason to compare PK fields and they can be ignored for a small
-** performance boost.
-**
-** The sorter can guarantee a stable sort when running in single-threaded
-** mode, but not in multi-threaded mode.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeSorterInit(
-  tdsqlite3 *db,                    /* Database connection (for malloc()) */
-  int nField,                     /* Number of key fields in each record */
-  VdbeCursor *pCsr                /* Cursor that holds the new sorter */
-){
-  int pgsz;                       /* Page size of main database */
-  int i;                          /* Used to iterate through aTask[] */
-  VdbeSorter *pSorter;            /* The new sorter */
-  KeyInfo *pKeyInfo;              /* Copy of pCsr->pKeyInfo with db==0 */
-  int szKeyInfo;                  /* Size of pCsr->pKeyInfo in bytes */
-  int sz;                         /* Size of pSorter in bytes */
-  int rc = SQLITE_OK;
-#if SQLITE_MAX_WORKER_THREADS==0
-# define nWorker 0
-#else
-  int nWorker;
-#endif
-
-  /* Initialize the upper limit on the number of worker threads */
-#if SQLITE_MAX_WORKER_THREADS>0
-  if( tdsqlite3TempInMemory(db) || tdsqlite3GlobalConfig.bCoreMutex==0 ){
-    nWorker = 0;
-  }else{
-    nWorker = db->aLimit[SQLITE_LIMIT_WORKER_THREADS];
-  }
-#endif
-
-  /* Do not allow the total number of threads (main thread + all workers)
-  ** to exceed the maximum merge count */
-#if SQLITE_MAX_WORKER_THREADS>=SORTER_MAX_MERGE_COUNT
-  if( nWorker>=SORTER_MAX_MERGE_COUNT ){
-    nWorker = SORTER_MAX_MERGE_COUNT-1;
-  }
-#endif
-
-  assert( pCsr->pKeyInfo && pCsr->pBtx==0 );
-  assert( pCsr->eCurType==CURTYPE_SORTER );
-  szKeyInfo = sizeof(KeyInfo) + (pCsr->pKeyInfo->nKeyField-1)*sizeof(CollSeq*);
-  sz = sizeof(VdbeSorter) + nWorker * sizeof(SortSubtask);
-
-  pSorter = (VdbeSorter*)tdsqlite3DbMallocZero(db, sz + szKeyInfo);
-  pCsr->uc.pSorter = pSorter;
-  if( pSorter==0 ){
-    rc = SQLITE_NOMEM_BKPT;
-  }else{
-    pSorter->pKeyInfo = pKeyInfo = (KeyInfo*)((u8*)pSorter + sz);
-    memcpy(pKeyInfo, pCsr->pKeyInfo, szKeyInfo);
-    pKeyInfo->db = 0;
-    if( nField && nWorker==0 ){
-      pKeyInfo->nKeyField = nField;
-    }
-    pSorter->pgsz = pgsz = tdsqlite3BtreeGetPageSize(db->aDb[0].pBt);
-    pSorter->nTask = nWorker + 1;
-    pSorter->iPrev = (u8)(nWorker - 1);
-    pSorter->bUseThreads = (pSorter->nTask>1);
-    pSorter->db = db;
-    for(i=0; i<pSorter->nTask; i++){
-      SortSubtask *pTask = &pSorter->aTask[i];
-      pTask->pSorter = pSorter;
-    }
-
-    if( !tdsqlite3TempInMemory(db) ){
-      i64 mxCache;                /* Cache size in bytes*/
-      u32 szPma = tdsqlite3GlobalConfig.szPma;
-      pSorter->mnPmaSize = szPma * pgsz;
-
-      mxCache = db->aDb[0].pSchema->cache_size;
-      if( mxCache<0 ){
-        /* A negative cache-size value C indicates that the cache is abs(C)
-        ** KiB in size.  */
-        mxCache = mxCache * -1024;
-      }else{
-        mxCache = mxCache * pgsz;
-      }
-      mxCache = MIN(mxCache, SQLITE_MAX_PMASZ);
-      pSorter->mxPmaSize = MAX(pSorter->mnPmaSize, (int)mxCache);
-
-      /* Avoid large memory allocations if the application has requested
-      ** SQLITE_CONFIG_SMALL_MALLOC. */
-      if( tdsqlite3GlobalConfig.bSmallMalloc==0 ){
-        assert( pSorter->iMemory==0 );
-        pSorter->nMemory = pgsz;
-        pSorter->list.aMemory = (u8*)tdsqlite3Malloc(pgsz);
-        if( !pSorter->list.aMemory ) rc = SQLITE_NOMEM_BKPT;
-      }
-    }
-
-    if( pKeyInfo->nAllField<13 
-     && (pKeyInfo->aColl[0]==0 || pKeyInfo->aColl[0]==db->pDfltColl)
-     && (pKeyInfo->aSortFlags[0] & KEYINFO_ORDER_BIGNULL)==0
-    ){
-      pSorter->typeMask = SORTER_TYPE_INTEGER | SORTER_TYPE_TEXT;
-    }
-  }
-
-  return rc;
-}
-#undef nWorker   /* Defined at the top of this function */
-
-/*
-** Free the list of sorted records starting at pRecord.
-*/
-static void vdbeSorterRecordFree(tdsqlite3 *db, SorterRecord *pRecord){
-  SorterRecord *p;
-  SorterRecord *pNext;
-  for(p=pRecord; p; p=pNext){
-    pNext = p->u.pNext;
-    tdsqlite3DbFree(db, p);
-  }
-}
-
-/*
-** Free all resources owned by the object indicated by argument pTask. All 
-** fields of *pTask are zeroed before returning.
-*/
-static void vdbeSortSubtaskCleanup(tdsqlite3 *db, SortSubtask *pTask){
-  tdsqlite3DbFree(db, pTask->pUnpacked);
-#if SQLITE_MAX_WORKER_THREADS>0
-  /* pTask->list.aMemory can only be non-zero if it was handed memory
-  ** from the main thread.  That only occurs SQLITE_MAX_WORKER_THREADS>0 */
-  if( pTask->list.aMemory ){
-    tdsqlite3_free(pTask->list.aMemory);
-  }else
-#endif
-  {
-    assert( pTask->list.aMemory==0 );
-    vdbeSorterRecordFree(0, pTask->list.pList);
-  }
-  if( pTask->file.pFd ){
-    tdsqlite3OsCloseFree(pTask->file.pFd);
-  }
-  if( pTask->file2.pFd ){
-    tdsqlite3OsCloseFree(pTask->file2.pFd);
-  }
-  memset(pTask, 0, sizeof(SortSubtask));
-}
-
-#ifdef SQLITE_DEBUG_SORTER_THREADS
-static void vdbeSorterWorkDebug(SortSubtask *pTask, const char *zEvent){
-  i64 t;
-  int iTask = (pTask - pTask->pSorter->aTask);
-  tdsqlite3OsCurrentTimeInt64(pTask->pSorter->db->pVfs, &t);
-  fprintf(stderr, "%lld:%d %s\n", t, iTask, zEvent);
-}
-static void vdbeSorterRewindDebug(const char *zEvent){
-  i64 t;
-  tdsqlite3OsCurrentTimeInt64(tdsqlite3_vfs_find(0), &t);
-  fprintf(stderr, "%lld:X %s\n", t, zEvent);
-}
-static void vdbeSorterPopulateDebug(
-  SortSubtask *pTask,
-  const char *zEvent
-){
-  i64 t;
-  int iTask = (pTask - pTask->pSorter->aTask);
-  tdsqlite3OsCurrentTimeInt64(pTask->pSorter->db->pVfs, &t);
-  fprintf(stderr, "%lld:bg%d %s\n", t, iTask, zEvent);
-}
-static void vdbeSorterBlockDebug(
-  SortSubtask *pTask,
-  int bBlocked,
-  const char *zEvent
-){
-  if( bBlocked ){
-    i64 t;
-    tdsqlite3OsCurrentTimeInt64(pTask->pSorter->db->pVfs, &t);
-    fprintf(stderr, "%lld:main %s\n", t, zEvent);
-  }
-}
-#else
-# define vdbeSorterWorkDebug(x,y)
-# define vdbeSorterRewindDebug(y)
-# define vdbeSorterPopulateDebug(x,y)
-# define vdbeSorterBlockDebug(x,y,z)
-#endif
-
-#if SQLITE_MAX_WORKER_THREADS>0
-/*
-** Join thread pTask->thread.
-*/
-static int vdbeSorterJoinThread(SortSubtask *pTask){
-  int rc = SQLITE_OK;
-  if( pTask->pThread ){
-#ifdef SQLITE_DEBUG_SORTER_THREADS
-    int bDone = pTask->bDone;
-#endif
-    void *pRet = SQLITE_INT_TO_PTR(SQLITE_ERROR);
-    vdbeSorterBlockDebug(pTask, !bDone, "enter");
-    (void)tdsqlite3ThreadJoin(pTask->pThread, &pRet);
-    vdbeSorterBlockDebug(pTask, !bDone, "exit");
-    rc = SQLITE_PTR_TO_INT(pRet);
-    assert( pTask->bDone==1 );
-    pTask->bDone = 0;
-    pTask->pThread = 0;
-  }
-  return rc;
-}
-
-/*
-** Launch a background thread to run xTask(pIn).
-*/
-static int vdbeSorterCreateThread(
-  SortSubtask *pTask,             /* Thread will use this task object */
-  void *(*xTask)(void*),          /* Routine to run in a separate thread */
-  void *pIn                       /* Argument passed into xTask() */
-){
-  assert( pTask->pThread==0 && pTask->bDone==0 );
-  return tdsqlite3ThreadCreate(&pTask->pThread, xTask, pIn);
-}
-
-/*
-** Join all outstanding threads launched by SorterWrite() to create 
-** level-0 PMAs.
-*/
-static int vdbeSorterJoinAll(VdbeSorter *pSorter, int rcin){
-  int rc = rcin;
-  int i;
-
-  /* This function is always called by the main user thread.
-  **
-  ** If this function is being called after SorterRewind() has been called, 
-  ** it is possible that thread pSorter->aTask[pSorter->nTask-1].pThread
-  ** is currently attempt to join one of the other threads. To avoid a race
-  ** condition where this thread also attempts to join the same object, join 
-  ** thread pSorter->aTask[pSorter->nTask-1].pThread first. */
-  for(i=pSorter->nTask-1; i>=0; i--){
-    SortSubtask *pTask = &pSorter->aTask[i];
-    int rc2 = vdbeSorterJoinThread(pTask);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-  return rc;
-}
-#else
-# define vdbeSorterJoinAll(x,rcin) (rcin)
-# define vdbeSorterJoinThread(pTask) SQLITE_OK
-#endif
-
-/*
-** Allocate a new MergeEngine object capable of handling up to
-** nReader PmaReader inputs.
-**
-** nReader is automatically rounded up to the next power of two.
-** nReader may not exceed SORTER_MAX_MERGE_COUNT even after rounding up.
-*/
-static MergeEngine *vdbeMergeEngineNew(int nReader){
-  int N = 2;                      /* Smallest power of two >= nReader */
-  int nByte;                      /* Total bytes of space to allocate */
-  MergeEngine *pNew;              /* Pointer to allocated object to return */
-
-  assert( nReader<=SORTER_MAX_MERGE_COUNT );
-
-  while( N<nReader ) N += N;
-  nByte = sizeof(MergeEngine) + N * (sizeof(int) + sizeof(PmaReader));
-
-  pNew = tdsqlite3FaultSim(100) ? 0 : (MergeEngine*)tdsqlite3MallocZero(nByte);
-  if( pNew ){
-    pNew->nTree = N;
-    pNew->pTask = 0;
-    pNew->aReadr = (PmaReader*)&pNew[1];
-    pNew->aTree = (int*)&pNew->aReadr[N];
-  }
-  return pNew;
-}
-
-/*
-** Free the MergeEngine object passed as the only argument.
-*/
-static void vdbeMergeEngineFree(MergeEngine *pMerger){
-  int i;
-  if( pMerger ){
-    for(i=0; i<pMerger->nTree; i++){
-      vdbePmaReaderClear(&pMerger->aReadr[i]);
-    }
-  }
-  tdsqlite3_free(pMerger);
-}
-
-/*
-** Free all resources associated with the IncrMerger object indicated by
-** the first argument.
-*/
-static void vdbeIncrFree(IncrMerger *pIncr){
-  if( pIncr ){
-#if SQLITE_MAX_WORKER_THREADS>0
-    if( pIncr->bUseThread ){
-      vdbeSorterJoinThread(pIncr->pTask);
-      if( pIncr->aFile[0].pFd ) tdsqlite3OsCloseFree(pIncr->aFile[0].pFd);
-      if( pIncr->aFile[1].pFd ) tdsqlite3OsCloseFree(pIncr->aFile[1].pFd);
-    }
-#endif
-    vdbeMergeEngineFree(pIncr->pMerger);
-    tdsqlite3_free(pIncr);
-  }
-}
-
-/*
-** Reset a sorting cursor back to its original empty state.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSorterReset(tdsqlite3 *db, VdbeSorter *pSorter){
-  int i;
-  (void)vdbeSorterJoinAll(pSorter, SQLITE_OK);
-  assert( pSorter->bUseThreads || pSorter->pReader==0 );
-#if SQLITE_MAX_WORKER_THREADS>0
-  if( pSorter->pReader ){
-    vdbePmaReaderClear(pSorter->pReader);
-    tdsqlite3DbFree(db, pSorter->pReader);
-    pSorter->pReader = 0;
-  }
-#endif
-  vdbeMergeEngineFree(pSorter->pMerger);
-  pSorter->pMerger = 0;
-  for(i=0; i<pSorter->nTask; i++){
-    SortSubtask *pTask = &pSorter->aTask[i];
-    vdbeSortSubtaskCleanup(db, pTask);
-    pTask->pSorter = pSorter;
-  }
-  if( pSorter->list.aMemory==0 ){
-    vdbeSorterRecordFree(0, pSorter->list.pList);
-  }
-  pSorter->list.pList = 0;
-  pSorter->list.szPMA = 0;
-  pSorter->bUsePMA = 0;
-  pSorter->iMemory = 0;
-  pSorter->mxKeysize = 0;
-  tdsqlite3DbFree(db, pSorter->pUnpacked);
-  pSorter->pUnpacked = 0;
-}
-
-/*
-** Free any cursor components allocated by tdsqlite3VdbeSorterXXX routines.
-*/
-SQLITE_PRIVATE void tdsqlite3VdbeSorterClose(tdsqlite3 *db, VdbeCursor *pCsr){
-  VdbeSorter *pSorter;
-  assert( pCsr->eCurType==CURTYPE_SORTER );
-  pSorter = pCsr->uc.pSorter;
-  if( pSorter ){
-    tdsqlite3VdbeSorterReset(db, pSorter);
-    tdsqlite3_free(pSorter->list.aMemory);
-    tdsqlite3DbFree(db, pSorter);
-    pCsr->uc.pSorter = 0;
-  }
-}
-
-#if SQLITE_MAX_MMAP_SIZE>0
-/*
-** The first argument is a file-handle open on a temporary file. The file
-** is guaranteed to be nByte bytes or smaller in size. This function
-** attempts to extend the file to nByte bytes in size and to ensure that
-** the VFS has memory mapped it.
-**
-** Whether or not the file does end up memory mapped of course depends on
-** the specific VFS implementation.
-*/
-static void vdbeSorterExtendFile(tdsqlite3 *db, tdsqlite3_file *pFd, i64 nByte){
-  if( nByte<=(i64)(db->nMaxSorterMmap) && pFd->pMethods->iVersion>=3 ){
-    void *p = 0;
-    int chunksize = 4*1024;
-    tdsqlite3OsFileControlHint(pFd, SQLITE_FCNTL_CHUNK_SIZE, &chunksize);
-    tdsqlite3OsFileControlHint(pFd, SQLITE_FCNTL_SIZE_HINT, &nByte);
-    tdsqlite3OsFetch(pFd, 0, (int)nByte, &p);
-    tdsqlite3OsUnfetch(pFd, 0, p);
-  }
-}
-#else
-# define vdbeSorterExtendFile(x,y,z)
-#endif
-
-/*
-** Allocate space for a file-handle and open a temporary file. If successful,
-** set *ppFd to point to the malloc'd file-handle and return SQLITE_OK.
-** Otherwise, set *ppFd to 0 and return an SQLite error code.
-*/
-static int vdbeSorterOpenTempFile(
-  tdsqlite3 *db,                    /* Database handle doing sort */
-  i64 nExtend,                    /* Attempt to extend file to this size */
-  tdsqlite3_file **ppFd
-){
-  int rc;
-  if( tdsqlite3FaultSim(202) ) return SQLITE_IOERR_ACCESS;
-  rc = tdsqlite3OsOpenMalloc(db->pVfs, 0, ppFd,
-      SQLITE_OPEN_TEMP_JOURNAL |
-      SQLITE_OPEN_READWRITE    | SQLITE_OPEN_CREATE |
-      SQLITE_OPEN_EXCLUSIVE    | SQLITE_OPEN_DELETEONCLOSE, &rc
-  );
-  if( rc==SQLITE_OK ){
-    i64 max = SQLITE_MAX_MMAP_SIZE;
-    tdsqlite3OsFileControlHint(*ppFd, SQLITE_FCNTL_MMAP_SIZE, (void*)&max);
-    if( nExtend>0 ){
-      vdbeSorterExtendFile(db, *ppFd, nExtend);
-    }
-  }
-  return rc;
-}
-
-/*
-** If it has not already been allocated, allocate the UnpackedRecord 
-** structure at pTask->pUnpacked. Return SQLITE_OK if successful (or 
-** if no allocation was required), or SQLITE_NOMEM otherwise.
-*/
-static int vdbeSortAllocUnpacked(SortSubtask *pTask){
-  if( pTask->pUnpacked==0 ){
-    pTask->pUnpacked = tdsqlite3VdbeAllocUnpackedRecord(pTask->pSorter->pKeyInfo);
-    if( pTask->pUnpacked==0 ) return SQLITE_NOMEM_BKPT;
-    pTask->pUnpacked->nField = pTask->pSorter->pKeyInfo->nKeyField;
-    pTask->pUnpacked->errCode = 0;
-  }
-  return SQLITE_OK;
-}
-
-
-/*
-** Merge the two sorted lists p1 and p2 into a single list.
-*/
-static SorterRecord *vdbeSorterMerge(
-  SortSubtask *pTask,             /* Calling thread context */
-  SorterRecord *p1,               /* First list to merge */
-  SorterRecord *p2                /* Second list to merge */
-){
-  SorterRecord *pFinal = 0;
-  SorterRecord **pp = &pFinal;
-  int bCached = 0;
-
-  assert( p1!=0 && p2!=0 );
-  for(;;){
-    int res;
-    res = pTask->xCompare(
-        pTask, &bCached, SRVAL(p1), p1->nVal, SRVAL(p2), p2->nVal
-    );
-
-    if( res<=0 ){
-      *pp = p1;
-      pp = &p1->u.pNext;
-      p1 = p1->u.pNext;
-      if( p1==0 ){
-        *pp = p2;
-        break;
-      }
-    }else{
-      *pp = p2;
-      pp = &p2->u.pNext;
-      p2 = p2->u.pNext;
-      bCached = 0;
-      if( p2==0 ){
-        *pp = p1;
-        break;
-      }
-    }
-  }
-  return pFinal;
-}
-
-/*
-** Return the SorterCompare function to compare values collected by the
-** sorter object passed as the only argument.
-*/
-static SorterCompare vdbeSorterGetCompare(VdbeSorter *p){
-  if( p->typeMask==SORTER_TYPE_INTEGER ){
-    return vdbeSorterCompareInt;
-  }else if( p->typeMask==SORTER_TYPE_TEXT ){
-    return vdbeSorterCompareText; 
-  }
-  return vdbeSorterCompare;
-}
-
-/*
-** Sort the linked list of records headed at pTask->pList. Return 
-** SQLITE_OK if successful, or an SQLite error code (i.e. SQLITE_NOMEM) if 
-** an error occurs.
-*/
-static int vdbeSorterSort(SortSubtask *pTask, SorterList *pList){
-  int i;
-  SorterRecord *p;
-  int rc;
-  SorterRecord *aSlot[64];
-
-  rc = vdbeSortAllocUnpacked(pTask);
-  if( rc!=SQLITE_OK ) return rc;
-
-  p = pList->pList;
-  pTask->xCompare = vdbeSorterGetCompare(pTask->pSorter);
-  memset(aSlot, 0, sizeof(aSlot));
-
-  while( p ){
-    SorterRecord *pNext;
-    if( pList->aMemory ){
-      if( (u8*)p==pList->aMemory ){
-        pNext = 0;
-      }else{
-        assert( p->u.iNext<tdsqlite3MallocSize(pList->aMemory) );
-        pNext = (SorterRecord*)&pList->aMemory[p->u.iNext];
-      }
-    }else{
-      pNext = p->u.pNext;
-    }
-
-    p->u.pNext = 0;
-    for(i=0; aSlot[i]; i++){
-      p = vdbeSorterMerge(pTask, p, aSlot[i]);
-      aSlot[i] = 0;
-    }
-    aSlot[i] = p;
-    p = pNext;
-  }
-
-  p = 0;
-  for(i=0; i<ArraySize(aSlot); i++){
-    if( aSlot[i]==0 ) continue;
-    p = p ? vdbeSorterMerge(pTask, p, aSlot[i]) : aSlot[i];
-  }
-  pList->pList = p;
-
-  assert( pTask->pUnpacked->errCode==SQLITE_OK 
-       || pTask->pUnpacked->errCode==SQLITE_NOMEM 
-  );
-  return pTask->pUnpacked->errCode;
-}
-
-/*
-** Initialize a PMA-writer object.
-*/
-static void vdbePmaWriterInit(
-  tdsqlite3_file *pFd,              /* File handle to write to */
-  PmaWriter *p,                   /* Object to populate */
-  int nBuf,                       /* Buffer size */
-  i64 iStart                      /* Offset of pFd to begin writing at */
-){
-  memset(p, 0, sizeof(PmaWriter));
-  p->aBuffer = (u8*)tdsqlite3Malloc(nBuf);
-  if( !p->aBuffer ){
-    p->eFWErr = SQLITE_NOMEM_BKPT;
-  }else{
-    p->iBufEnd = p->iBufStart = (iStart % nBuf);
-    p->iWriteOff = iStart - p->iBufStart;
-    p->nBuffer = nBuf;
-    p->pFd = pFd;
-  }
-}
-
-/*
-** Write nData bytes of data to the PMA. Return SQLITE_OK
-** if successful, or an SQLite error code if an error occurs.
-*/
-static void vdbePmaWriteBlob(PmaWriter *p, u8 *pData, int nData){
-  int nRem = nData;
-  while( nRem>0 && p->eFWErr==0 ){
-    int nCopy = nRem;
-    if( nCopy>(p->nBuffer - p->iBufEnd) ){
-      nCopy = p->nBuffer - p->iBufEnd;
-    }
-
-    memcpy(&p->aBuffer[p->iBufEnd], &pData[nData-nRem], nCopy);
-    p->iBufEnd += nCopy;
-    if( p->iBufEnd==p->nBuffer ){
-      p->eFWErr = tdsqlite3OsWrite(p->pFd, 
-          &p->aBuffer[p->iBufStart], p->iBufEnd - p->iBufStart, 
-          p->iWriteOff + p->iBufStart
-      );
-      p->iBufStart = p->iBufEnd = 0;
-      p->iWriteOff += p->nBuffer;
-    }
-    assert( p->iBufEnd<p->nBuffer );
-
-    nRem -= nCopy;
-  }
-}
-
-/*
-** Flush any buffered data to disk and clean up the PMA-writer object.
-** The results of using the PMA-writer after this call are undefined.
-** Return SQLITE_OK if flushing the buffered data succeeds or is not 
-** required. Otherwise, return an SQLite error code.
-**
-** Before returning, set *piEof to the offset immediately following the
-** last byte written to the file.
-*/
-static int vdbePmaWriterFinish(PmaWriter *p, i64 *piEof){
-  int rc;
-  if( p->eFWErr==0 && ALWAYS(p->aBuffer) && p->iBufEnd>p->iBufStart ){
-    p->eFWErr = tdsqlite3OsWrite(p->pFd, 
-        &p->aBuffer[p->iBufStart], p->iBufEnd - p->iBufStart, 
-        p->iWriteOff + p->iBufStart
-    );
-  }
-  *piEof = (p->iWriteOff + p->iBufEnd);
-  tdsqlite3_free(p->aBuffer);
-  rc = p->eFWErr;
-  memset(p, 0, sizeof(PmaWriter));
-  return rc;
-}
-
-/*
-** Write value iVal encoded as a varint to the PMA. Return 
-** SQLITE_OK if successful, or an SQLite error code if an error occurs.
-*/
-static void vdbePmaWriteVarint(PmaWriter *p, u64 iVal){
-  int nByte; 
-  u8 aByte[10];
-  nByte = tdsqlite3PutVarint(aByte, iVal);
-  vdbePmaWriteBlob(p, aByte, nByte);
-}
-
-/*
-** Write the current contents of in-memory linked-list pList to a level-0
-** PMA in the temp file belonging to sub-task pTask. Return SQLITE_OK if 
-** successful, or an SQLite error code otherwise.
-**
-** The format of a PMA is:
-**
-**     * A varint. This varint contains the total number of bytes of content
-**       in the PMA (not including the varint itself).
-**
-**     * One or more records packed end-to-end in order of ascending keys. 
-**       Each record consists of a varint followed by a blob of data (the 
-**       key). The varint is the number of bytes in the blob of data.
-*/
-static int vdbeSorterListToPMA(SortSubtask *pTask, SorterList *pList){
-  tdsqlite3 *db = pTask->pSorter->db;
-  int rc = SQLITE_OK;             /* Return code */
-  PmaWriter writer;               /* Object used to write to the file */
-
-#ifdef SQLITE_DEBUG
-  /* Set iSz to the expected size of file pTask->file after writing the PMA. 
-  ** This is used by an assert() statement at the end of this function.  */
-  i64 iSz = pList->szPMA + tdsqlite3VarintLen(pList->szPMA) + pTask->file.iEof;
-#endif
-
-  vdbeSorterWorkDebug(pTask, "enter");
-  memset(&writer, 0, sizeof(PmaWriter));
-  assert( pList->szPMA>0 );
-
-  /* If the first temporary PMA file has not been opened, open it now. */
-  if( pTask->file.pFd==0 ){
-    rc = vdbeSorterOpenTempFile(db, 0, &pTask->file.pFd);
-    assert( rc!=SQLITE_OK || pTask->file.pFd );
-    assert( pTask->file.iEof==0 );
-    assert( pTask->nPMA==0 );
-  }
-
-  /* Try to get the file to memory map */
-  if( rc==SQLITE_OK ){
-    vdbeSorterExtendFile(db, pTask->file.pFd, pTask->file.iEof+pList->szPMA+9);
-  }
-
-  /* Sort the list */
-  if( rc==SQLITE_OK ){
-    rc = vdbeSorterSort(pTask, pList);
-  }
-
-  if( rc==SQLITE_OK ){
-    SorterRecord *p;
-    SorterRecord *pNext = 0;
-
-    vdbePmaWriterInit(pTask->file.pFd, &writer, pTask->pSorter->pgsz,
-                      pTask->file.iEof);
-    pTask->nPMA++;
-    vdbePmaWriteVarint(&writer, pList->szPMA);
-    for(p=pList->pList; p; p=pNext){
-      pNext = p->u.pNext;
-      vdbePmaWriteVarint(&writer, p->nVal);
-      vdbePmaWriteBlob(&writer, SRVAL(p), p->nVal);
-      if( pList->aMemory==0 ) tdsqlite3_free(p);
-    }
-    pList->pList = p;
-    rc = vdbePmaWriterFinish(&writer, &pTask->file.iEof);
-  }
-
-  vdbeSorterWorkDebug(pTask, "exit");
-  assert( rc!=SQLITE_OK || pList->pList==0 );
-  assert( rc!=SQLITE_OK || pTask->file.iEof==iSz );
-  return rc;
-}
-
-/*
-** Advance the MergeEngine to its next entry.
-** Set *pbEof to true there is no next entry because
-** the MergeEngine has reached the end of all its inputs.
-**
-** Return SQLITE_OK if successful or an error code if an error occurs.
-*/
-static int vdbeMergeEngineStep(
-  MergeEngine *pMerger,      /* The merge engine to advance to the next row */
-  int *pbEof                 /* Set TRUE at EOF.  Set false for more content */
-){
-  int rc;
-  int iPrev = pMerger->aTree[1];/* Index of PmaReader to advance */
-  SortSubtask *pTask = pMerger->pTask;
-
-  /* Advance the current PmaReader */
-  rc = vdbePmaReaderNext(&pMerger->aReadr[iPrev]);
-
-  /* Update contents of aTree[] */
-  if( rc==SQLITE_OK ){
-    int i;                      /* Index of aTree[] to recalculate */
-    PmaReader *pReadr1;         /* First PmaReader to compare */
-    PmaReader *pReadr2;         /* Second PmaReader to compare */
-    int bCached = 0;
-
-    /* Find the first two PmaReaders to compare. The one that was just
-    ** advanced (iPrev) and the one next to it in the array.  */
-    pReadr1 = &pMerger->aReadr[(iPrev & 0xFFFE)];
-    pReadr2 = &pMerger->aReadr[(iPrev | 0x0001)];
-
-    for(i=(pMerger->nTree+iPrev)/2; i>0; i=i/2){
-      /* Compare pReadr1 and pReadr2. Store the result in variable iRes. */
-      int iRes;
-      if( pReadr1->pFd==0 ){
-        iRes = +1;
-      }else if( pReadr2->pFd==0 ){
-        iRes = -1;
-      }else{
-        iRes = pTask->xCompare(pTask, &bCached,
-            pReadr1->aKey, pReadr1->nKey, pReadr2->aKey, pReadr2->nKey
-        );
-      }
-
-      /* If pReadr1 contained the smaller value, set aTree[i] to its index.
-      ** Then set pReadr2 to the next PmaReader to compare to pReadr1. In this
-      ** case there is no cache of pReadr2 in pTask->pUnpacked, so set
-      ** pKey2 to point to the record belonging to pReadr2.
-      **
-      ** Alternatively, if pReadr2 contains the smaller of the two values,
-      ** set aTree[i] to its index and update pReadr1. If vdbeSorterCompare()
-      ** was actually called above, then pTask->pUnpacked now contains
-      ** a value equivalent to pReadr2. So set pKey2 to NULL to prevent
-      ** vdbeSorterCompare() from decoding pReadr2 again.
-      **
-      ** If the two values were equal, then the value from the oldest
-      ** PMA should be considered smaller. The VdbeSorter.aReadr[] array
-      ** is sorted from oldest to newest, so pReadr1 contains older values
-      ** than pReadr2 iff (pReadr1<pReadr2).  */
-      if( iRes<0 || (iRes==0 && pReadr1<pReadr2) ){
-        pMerger->aTree[i] = (int)(pReadr1 - pMerger->aReadr);
-        pReadr2 = &pMerger->aReadr[ pMerger->aTree[i ^ 0x0001] ];
-        bCached = 0;
-      }else{
-        if( pReadr1->pFd ) bCached = 0;
-        pMerger->aTree[i] = (int)(pReadr2 - pMerger->aReadr);
-        pReadr1 = &pMerger->aReadr[ pMerger->aTree[i ^ 0x0001] ];
-      }
-    }
-    *pbEof = (pMerger->aReadr[pMerger->aTree[1]].pFd==0);
-  }
-
-  return (rc==SQLITE_OK ? pTask->pUnpacked->errCode : rc);
-}
-
-#if SQLITE_MAX_WORKER_THREADS>0
-/*
-** The main routine for background threads that write level-0 PMAs.
-*/
-static void *vdbeSorterFlushThread(void *pCtx){
-  SortSubtask *pTask = (SortSubtask*)pCtx;
-  int rc;                         /* Return code */
-  assert( pTask->bDone==0 );
-  rc = vdbeSorterListToPMA(pTask, &pTask->list);
-  pTask->bDone = 1;
-  return SQLITE_INT_TO_PTR(rc);
-}
-#endif /* SQLITE_MAX_WORKER_THREADS>0 */
-
-/*
-** Flush the current contents of VdbeSorter.list to a new PMA, possibly
-** using a background thread.
-*/
-static int vdbeSorterFlushPMA(VdbeSorter *pSorter){
-#if SQLITE_MAX_WORKER_THREADS==0
-  pSorter->bUsePMA = 1;
-  return vdbeSorterListToPMA(&pSorter->aTask[0], &pSorter->list);
-#else
-  int rc = SQLITE_OK;
-  int i;
-  SortSubtask *pTask = 0;    /* Thread context used to create new PMA */
-  int nWorker = (pSorter->nTask-1);
-
-  /* Set the flag to indicate that at least one PMA has been written. 
-  ** Or will be, anyhow.  */
-  pSorter->bUsePMA = 1;
-
-  /* Select a sub-task to sort and flush the current list of in-memory
-  ** records to disk. If the sorter is running in multi-threaded mode,
-  ** round-robin between the first (pSorter->nTask-1) tasks. Except, if
-  ** the background thread from a sub-tasks previous turn is still running,
-  ** skip it. If the first (pSorter->nTask-1) sub-tasks are all still busy,
-  ** fall back to using the final sub-task. The first (pSorter->nTask-1)
-  ** sub-tasks are prefered as they use background threads - the final 
-  ** sub-task uses the main thread. */
-  for(i=0; i<nWorker; i++){
-    int iTest = (pSorter->iPrev + i + 1) % nWorker;
-    pTask = &pSorter->aTask[iTest];
-    if( pTask->bDone ){
-      rc = vdbeSorterJoinThread(pTask);
-    }
-    if( rc!=SQLITE_OK || pTask->pThread==0 ) break;
-  }
-
-  if( rc==SQLITE_OK ){
-    if( i==nWorker ){
-      /* Use the foreground thread for this operation */
-      rc = vdbeSorterListToPMA(&pSorter->aTask[nWorker], &pSorter->list);
-    }else{
-      /* Launch a background thread for this operation */
-      u8 *aMem;
-      void *pCtx;
-
-      assert( pTask!=0 );
-      assert( pTask->pThread==0 && pTask->bDone==0 );
-      assert( pTask->list.pList==0 );
-      assert( pTask->list.aMemory==0 || pSorter->list.aMemory!=0 );
-
-      aMem = pTask->list.aMemory;
-      pCtx = (void*)pTask;
-      pSorter->iPrev = (u8)(pTask - pSorter->aTask);
-      pTask->list = pSorter->list;
-      pSorter->list.pList = 0;
-      pSorter->list.szPMA = 0;
-      if( aMem ){
-        pSorter->list.aMemory = aMem;
-        pSorter->nMemory = tdsqlite3MallocSize(aMem);
-      }else if( pSorter->list.aMemory ){
-        pSorter->list.aMemory = tdsqlite3Malloc(pSorter->nMemory);
-        if( !pSorter->list.aMemory ) return SQLITE_NOMEM_BKPT;
-      }
-
-      rc = vdbeSorterCreateThread(pTask, vdbeSorterFlushThread, pCtx);
-    }
-  }
-
-  return rc;
-#endif /* SQLITE_MAX_WORKER_THREADS!=0 */
-}
-
-/*
-** Add a record to the sorter.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeSorterWrite(
-  const VdbeCursor *pCsr,         /* Sorter cursor */
-  Mem *pVal                       /* Memory cell containing record */
-){
-  VdbeSorter *pSorter;
-  int rc = SQLITE_OK;             /* Return Code */
-  SorterRecord *pNew;             /* New list element */
-  int bFlush;                     /* True to flush contents of memory to PMA */
-  int nReq;                       /* Bytes of memory required */
-  int nPMA;                       /* Bytes of PMA space required */
-  int t;                          /* serial type of first record field */
-
-  assert( pCsr->eCurType==CURTYPE_SORTER );
-  pSorter = pCsr->uc.pSorter;
-  getVarint32((const u8*)&pVal->z[1], t);
-  if( t>0 && t<10 && t!=7 ){
-    pSorter->typeMask &= SORTER_TYPE_INTEGER;
-  }else if( t>10 && (t & 0x01) ){
-    pSorter->typeMask &= SORTER_TYPE_TEXT;
-  }else{
-    pSorter->typeMask = 0;
-  }
-
-  assert( pSorter );
-
-  /* Figure out whether or not the current contents of memory should be
-  ** flushed to a PMA before continuing. If so, do so.
-  **
-  ** If using the single large allocation mode (pSorter->aMemory!=0), then
-  ** flush the contents of memory to a new PMA if (a) at least one value is
-  ** already in memory and (b) the new value will not fit in memory.
-  ** 
-  ** Or, if using separate allocations for each record, flush the contents
-  ** of memory to a PMA if either of the following are true:
-  **
-  **   * The total memory allocated for the in-memory list is greater 
-  **     than (page-size * cache-size), or
-  **
-  **   * The total memory allocated for the in-memory list is greater 
-  **     than (page-size * 10) and tdsqlite3HeapNearlyFull() returns true.
-  */
-  nReq = pVal->n + sizeof(SorterRecord);
-  nPMA = pVal->n + tdsqlite3VarintLen(pVal->n);
-  if( pSorter->mxPmaSize ){
-    if( pSorter->list.aMemory ){
-      bFlush = pSorter->iMemory && (pSorter->iMemory+nReq) > pSorter->mxPmaSize;
-    }else{
-      bFlush = (
-          (pSorter->list.szPMA > pSorter->mxPmaSize)
-       || (pSorter->list.szPMA > pSorter->mnPmaSize && tdsqlite3HeapNearlyFull())
-      );
-    }
-    if( bFlush ){
-      rc = vdbeSorterFlushPMA(pSorter);
-      pSorter->list.szPMA = 0;
-      pSorter->iMemory = 0;
-      assert( rc!=SQLITE_OK || pSorter->list.pList==0 );
-    }
-  }
-
-  pSorter->list.szPMA += nPMA;
-  if( nPMA>pSorter->mxKeysize ){
-    pSorter->mxKeysize = nPMA;
-  }
-
-  if( pSorter->list.aMemory ){
-    int nMin = pSorter->iMemory + nReq;
-
-    if( nMin>pSorter->nMemory ){
-      u8 *aNew;
-      tdsqlite3_int64 nNew = 2 * (tdsqlite3_int64)pSorter->nMemory;
-      int iListOff = -1;
-      if( pSorter->list.pList ){
-        iListOff = (u8*)pSorter->list.pList - pSorter->list.aMemory;
-      }
-      while( nNew < nMin ) nNew = nNew*2;
-      if( nNew > pSorter->mxPmaSize ) nNew = pSorter->mxPmaSize;
-      if( nNew < nMin ) nNew = nMin;
-      aNew = tdsqlite3Realloc(pSorter->list.aMemory, nNew);
-      if( !aNew ) return SQLITE_NOMEM_BKPT;
-      if( iListOff>=0 ){
-        pSorter->list.pList = (SorterRecord*)&aNew[iListOff];
-      }
-      pSorter->list.aMemory = aNew;
-      pSorter->nMemory = nNew;
-    }
-
-    pNew = (SorterRecord*)&pSorter->list.aMemory[pSorter->iMemory];
-    pSorter->iMemory += ROUND8(nReq);
-    if( pSorter->list.pList ){
-      pNew->u.iNext = (int)((u8*)(pSorter->list.pList) - pSorter->list.aMemory);
-    }
-  }else{
-    pNew = (SorterRecord *)tdsqlite3Malloc(nReq);
-    if( pNew==0 ){
-      return SQLITE_NOMEM_BKPT;
-    }
-    pNew->u.pNext = pSorter->list.pList;
-  }
-
-  memcpy(SRVAL(pNew), pVal->z, pVal->n);
-  pNew->nVal = pVal->n;
-  pSorter->list.pList = pNew;
-
-  return rc;
-}
-
-/*
-** Read keys from pIncr->pMerger and populate pIncr->aFile[1]. The format
-** of the data stored in aFile[1] is the same as that used by regular PMAs,
-** except that the number-of-bytes varint is omitted from the start.
-*/
-static int vdbeIncrPopulate(IncrMerger *pIncr){
-  int rc = SQLITE_OK;
-  int rc2;
-  i64 iStart = pIncr->iStartOff;
-  SorterFile *pOut = &pIncr->aFile[1];
-  SortSubtask *pTask = pIncr->pTask;
-  MergeEngine *pMerger = pIncr->pMerger;
-  PmaWriter writer;
-  assert( pIncr->bEof==0 );
-
-  vdbeSorterPopulateDebug(pTask, "enter");
-
-  vdbePmaWriterInit(pOut->pFd, &writer, pTask->pSorter->pgsz, iStart);
-  while( rc==SQLITE_OK ){
-    int dummy;
-    PmaReader *pReader = &pMerger->aReadr[ pMerger->aTree[1] ];
-    int nKey = pReader->nKey;
-    i64 iEof = writer.iWriteOff + writer.iBufEnd;
-
-    /* Check if the output file is full or if the input has been exhausted.
-    ** In either case exit the loop. */
-    if( pReader->pFd==0 ) break;
-    if( (iEof + nKey + tdsqlite3VarintLen(nKey))>(iStart + pIncr->mxSz) ) break;
-
-    /* Write the next key to the output. */
-    vdbePmaWriteVarint(&writer, nKey);
-    vdbePmaWriteBlob(&writer, pReader->aKey, nKey);
-    assert( pIncr->pMerger->pTask==pTask );
-    rc = vdbeMergeEngineStep(pIncr->pMerger, &dummy);
-  }
-
-  rc2 = vdbePmaWriterFinish(&writer, &pOut->iEof);
-  if( rc==SQLITE_OK ) rc = rc2;
-  vdbeSorterPopulateDebug(pTask, "exit");
-  return rc;
-}
-
-#if SQLITE_MAX_WORKER_THREADS>0
-/*
-** The main routine for background threads that populate aFile[1] of
-** multi-threaded IncrMerger objects.
-*/
-static void *vdbeIncrPopulateThread(void *pCtx){
-  IncrMerger *pIncr = (IncrMerger*)pCtx;
-  void *pRet = SQLITE_INT_TO_PTR( vdbeIncrPopulate(pIncr) );
-  pIncr->pTask->bDone = 1;
-  return pRet;
-}
-
-/*
-** Launch a background thread to populate aFile[1] of pIncr.
-*/
-static int vdbeIncrBgPopulate(IncrMerger *pIncr){
-  void *p = (void*)pIncr;
-  assert( pIncr->bUseThread );
-  return vdbeSorterCreateThread(pIncr->pTask, vdbeIncrPopulateThread, p);
-}
-#endif
-
-/*
-** This function is called when the PmaReader corresponding to pIncr has
-** finished reading the contents of aFile[0]. Its purpose is to "refill"
-** aFile[0] such that the PmaReader should start rereading it from the
-** beginning.
-**
-** For single-threaded objects, this is accomplished by literally reading 
-** keys from pIncr->pMerger and repopulating aFile[0]. 
-**
-** For multi-threaded objects, all that is required is to wait until the 
-** background thread is finished (if it is not already) and then swap 
-** aFile[0] and aFile[1] in place. If the contents of pMerger have not
-** been exhausted, this function also launches a new background thread
-** to populate the new aFile[1].
-**
-** SQLITE_OK is returned on success, or an SQLite error code otherwise.
-*/
-static int vdbeIncrSwap(IncrMerger *pIncr){
-  int rc = SQLITE_OK;
-
-#if SQLITE_MAX_WORKER_THREADS>0
-  if( pIncr->bUseThread ){
-    rc = vdbeSorterJoinThread(pIncr->pTask);
-
-    if( rc==SQLITE_OK ){
-      SorterFile f0 = pIncr->aFile[0];
-      pIncr->aFile[0] = pIncr->aFile[1];
-      pIncr->aFile[1] = f0;
-    }
-
-    if( rc==SQLITE_OK ){
-      if( pIncr->aFile[0].iEof==pIncr->iStartOff ){
-        pIncr->bEof = 1;
-      }else{
-        rc = vdbeIncrBgPopulate(pIncr);
-      }
-    }
-  }else
-#endif
-  {
-    rc = vdbeIncrPopulate(pIncr);
-    pIncr->aFile[0] = pIncr->aFile[1];
-    if( pIncr->aFile[0].iEof==pIncr->iStartOff ){
-      pIncr->bEof = 1;
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Allocate and return a new IncrMerger object to read data from pMerger.
-**
-** If an OOM condition is encountered, return NULL. In this case free the
-** pMerger argument before returning.
-*/
-static int vdbeIncrMergerNew(
-  SortSubtask *pTask,     /* The thread that will be using the new IncrMerger */
-  MergeEngine *pMerger,   /* The MergeEngine that the IncrMerger will control */
-  IncrMerger **ppOut      /* Write the new IncrMerger here */
-){
-  int rc = SQLITE_OK;
-  IncrMerger *pIncr = *ppOut = (IncrMerger*)
-       (tdsqlite3FaultSim(100) ? 0 : tdsqlite3MallocZero(sizeof(*pIncr)));
-  if( pIncr ){
-    pIncr->pMerger = pMerger;
-    pIncr->pTask = pTask;
-    pIncr->mxSz = MAX(pTask->pSorter->mxKeysize+9,pTask->pSorter->mxPmaSize/2);
-    pTask->file2.iEof += pIncr->mxSz;
-  }else{
-    vdbeMergeEngineFree(pMerger);
-    rc = SQLITE_NOMEM_BKPT;
-  }
-  return rc;
-}
-
-#if SQLITE_MAX_WORKER_THREADS>0
-/*
-** Set the "use-threads" flag on object pIncr.
-*/
-static void vdbeIncrMergerSetThreads(IncrMerger *pIncr){
-  pIncr->bUseThread = 1;
-  pIncr->pTask->file2.iEof -= pIncr->mxSz;
-}
-#endif /* SQLITE_MAX_WORKER_THREADS>0 */
-
-
-
-/*
-** Recompute pMerger->aTree[iOut] by comparing the next keys on the
-** two PmaReaders that feed that entry.  Neither of the PmaReaders
-** are advanced.  This routine merely does the comparison.
-*/
-static void vdbeMergeEngineCompare(
-  MergeEngine *pMerger,  /* Merge engine containing PmaReaders to compare */
-  int iOut               /* Store the result in pMerger->aTree[iOut] */
-){
-  int i1;
-  int i2;
-  int iRes;
-  PmaReader *p1;
-  PmaReader *p2;
-
-  assert( iOut<pMerger->nTree && iOut>0 );
-
-  if( iOut>=(pMerger->nTree/2) ){
-    i1 = (iOut - pMerger->nTree/2) * 2;
-    i2 = i1 + 1;
-  }else{
-    i1 = pMerger->aTree[iOut*2];
-    i2 = pMerger->aTree[iOut*2+1];
-  }
-
-  p1 = &pMerger->aReadr[i1];
-  p2 = &pMerger->aReadr[i2];
-
-  if( p1->pFd==0 ){
-    iRes = i2;
-  }else if( p2->pFd==0 ){
-    iRes = i1;
-  }else{
-    SortSubtask *pTask = pMerger->pTask;
-    int bCached = 0;
-    int res;
-    assert( pTask->pUnpacked!=0 );  /* from vdbeSortSubtaskMain() */
-    res = pTask->xCompare(
-        pTask, &bCached, p1->aKey, p1->nKey, p2->aKey, p2->nKey
-    );
-    if( res<=0 ){
-      iRes = i1;
-    }else{
-      iRes = i2;
-    }
-  }
-
-  pMerger->aTree[iOut] = iRes;
-}
-
-/*
-** Allowed values for the eMode parameter to vdbeMergeEngineInit()
-** and vdbePmaReaderIncrMergeInit().
-**
-** Only INCRINIT_NORMAL is valid in single-threaded builds (when
-** SQLITE_MAX_WORKER_THREADS==0).  The other values are only used
-** when there exists one or more separate worker threads.
-*/
-#define INCRINIT_NORMAL 0
-#define INCRINIT_TASK   1
-#define INCRINIT_ROOT   2
-
-/* 
-** Forward reference required as the vdbeIncrMergeInit() and
-** vdbePmaReaderIncrInit() routines are called mutually recursively when
-** building a merge tree.
-*/
-static int vdbePmaReaderIncrInit(PmaReader *pReadr, int eMode);
-
-/*
-** Initialize the MergeEngine object passed as the second argument. Once this
-** function returns, the first key of merged data may be read from the 
-** MergeEngine object in the usual fashion.
-**
-** If argument eMode is INCRINIT_ROOT, then it is assumed that any IncrMerge
-** objects attached to the PmaReader objects that the merger reads from have
-** already been populated, but that they have not yet populated aFile[0] and
-** set the PmaReader objects up to read from it. In this case all that is
-** required is to call vdbePmaReaderNext() on each PmaReader to point it at
-** its first key.
-**
-** Otherwise, if eMode is any value other than INCRINIT_ROOT, then use 
-** vdbePmaReaderIncrMergeInit() to initialize each PmaReader that feeds data 
-** to pMerger.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-*/
-static int vdbeMergeEngineInit(
-  SortSubtask *pTask,             /* Thread that will run pMerger */
-  MergeEngine *pMerger,           /* MergeEngine to initialize */
-  int eMode                       /* One of the INCRINIT_XXX constants */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  int i;                          /* For looping over PmaReader objects */
-  int nTree;                      /* Number of subtrees to merge */
-
-  /* Failure to allocate the merge would have been detected prior to
-  ** invoking this routine */
-  assert( pMerger!=0 );
-
-  /* eMode is always INCRINIT_NORMAL in single-threaded mode */
-  assert( SQLITE_MAX_WORKER_THREADS>0 || eMode==INCRINIT_NORMAL );
-
-  /* Verify that the MergeEngine is assigned to a single thread */
-  assert( pMerger->pTask==0 );
-  pMerger->pTask = pTask;
-
-  nTree = pMerger->nTree;
-  for(i=0; i<nTree; i++){
-    if( SQLITE_MAX_WORKER_THREADS>0 && eMode==INCRINIT_ROOT ){
-      /* PmaReaders should be normally initialized in order, as if they are
-      ** reading from the same temp file this makes for more linear file IO.
-      ** However, in the INCRINIT_ROOT case, if PmaReader aReadr[nTask-1] is
-      ** in use it will block the vdbePmaReaderNext() call while it uses
-      ** the main thread to fill its buffer. So calling PmaReaderNext()
-      ** on this PmaReader before any of the multi-threaded PmaReaders takes
-      ** better advantage of multi-processor hardware. */
-      rc = vdbePmaReaderNext(&pMerger->aReadr[nTree-i-1]);
-    }else{
-      rc = vdbePmaReaderIncrInit(&pMerger->aReadr[i], INCRINIT_NORMAL);
-    }
-    if( rc!=SQLITE_OK ) return rc;
-  }
-
-  for(i=pMerger->nTree-1; i>0; i--){
-    vdbeMergeEngineCompare(pMerger, i);
-  }
-  return pTask->pUnpacked->errCode;
-}
-
-/*
-** The PmaReader passed as the first argument is guaranteed to be an
-** incremental-reader (pReadr->pIncr!=0). This function serves to open
-** and/or initialize the temp file related fields of the IncrMerge
-** object at (pReadr->pIncr).
-**
-** If argument eMode is set to INCRINIT_NORMAL, then all PmaReaders
-** in the sub-tree headed by pReadr are also initialized. Data is then 
-** loaded into the buffers belonging to pReadr and it is set to point to 
-** the first key in its range.
-**
-** If argument eMode is set to INCRINIT_TASK, then pReadr is guaranteed
-** to be a multi-threaded PmaReader and this function is being called in a
-** background thread. In this case all PmaReaders in the sub-tree are 
-** initialized as for INCRINIT_NORMAL and the aFile[1] buffer belonging to
-** pReadr is populated. However, pReadr itself is not set up to point
-** to its first key. A call to vdbePmaReaderNext() is still required to do
-** that. 
-**
-** The reason this function does not call vdbePmaReaderNext() immediately 
-** in the INCRINIT_TASK case is that vdbePmaReaderNext() assumes that it has
-** to block on thread (pTask->thread) before accessing aFile[1]. But, since
-** this entire function is being run by thread (pTask->thread), that will
-** lead to the current background thread attempting to join itself.
-**
-** Finally, if argument eMode is set to INCRINIT_ROOT, it may be assumed
-** that pReadr->pIncr is a multi-threaded IncrMerge objects, and that all
-** child-trees have already been initialized using IncrInit(INCRINIT_TASK).
-** In this case vdbePmaReaderNext() is called on all child PmaReaders and
-** the current PmaReader set to point to the first key in its range.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-*/
-static int vdbePmaReaderIncrMergeInit(PmaReader *pReadr, int eMode){
-  int rc = SQLITE_OK;
-  IncrMerger *pIncr = pReadr->pIncr;
-  SortSubtask *pTask = pIncr->pTask;
-  tdsqlite3 *db = pTask->pSorter->db;
-
-  /* eMode is always INCRINIT_NORMAL in single-threaded mode */
-  assert( SQLITE_MAX_WORKER_THREADS>0 || eMode==INCRINIT_NORMAL );
-
-  rc = vdbeMergeEngineInit(pTask, pIncr->pMerger, eMode);
-
-  /* Set up the required files for pIncr. A multi-theaded IncrMerge object
-  ** requires two temp files to itself, whereas a single-threaded object
-  ** only requires a region of pTask->file2. */
-  if( rc==SQLITE_OK ){
-    int mxSz = pIncr->mxSz;
-#if SQLITE_MAX_WORKER_THREADS>0
-    if( pIncr->bUseThread ){
-      rc = vdbeSorterOpenTempFile(db, mxSz, &pIncr->aFile[0].pFd);
-      if( rc==SQLITE_OK ){
-        rc = vdbeSorterOpenTempFile(db, mxSz, &pIncr->aFile[1].pFd);
-      }
-    }else
-#endif
-    /*if( !pIncr->bUseThread )*/{
-      if( pTask->file2.pFd==0 ){
-        assert( pTask->file2.iEof>0 );
-        rc = vdbeSorterOpenTempFile(db, pTask->file2.iEof, &pTask->file2.pFd);
-        pTask->file2.iEof = 0;
-      }
-      if( rc==SQLITE_OK ){
-        pIncr->aFile[1].pFd = pTask->file2.pFd;
-        pIncr->iStartOff = pTask->file2.iEof;
-        pTask->file2.iEof += mxSz;
-      }
-    }
-  }
-
-#if SQLITE_MAX_WORKER_THREADS>0
-  if( rc==SQLITE_OK && pIncr->bUseThread ){
-    /* Use the current thread to populate aFile[1], even though this
-    ** PmaReader is multi-threaded. If this is an INCRINIT_TASK object,
-    ** then this function is already running in background thread 
-    ** pIncr->pTask->thread. 
-    **
-    ** If this is the INCRINIT_ROOT object, then it is running in the 
-    ** main VDBE thread. But that is Ok, as that thread cannot return
-    ** control to the VDBE or proceed with anything useful until the 
-    ** first results are ready from this merger object anyway.
-    */
-    assert( eMode==INCRINIT_ROOT || eMode==INCRINIT_TASK );
-    rc = vdbeIncrPopulate(pIncr);
-  }
-#endif
-
-  if( rc==SQLITE_OK && (SQLITE_MAX_WORKER_THREADS==0 || eMode!=INCRINIT_TASK) ){
-    rc = vdbePmaReaderNext(pReadr);
-  }
-
-  return rc;
-}
-
-#if SQLITE_MAX_WORKER_THREADS>0
-/*
-** The main routine for vdbePmaReaderIncrMergeInit() operations run in 
-** background threads.
-*/
-static void *vdbePmaReaderBgIncrInit(void *pCtx){
-  PmaReader *pReader = (PmaReader*)pCtx;
-  void *pRet = SQLITE_INT_TO_PTR(
-                  vdbePmaReaderIncrMergeInit(pReader,INCRINIT_TASK)
-               );
-  pReader->pIncr->pTask->bDone = 1;
-  return pRet;
-}
-#endif
-
-/*
-** If the PmaReader passed as the first argument is not an incremental-reader
-** (if pReadr->pIncr==0), then this function is a no-op. Otherwise, it invokes
-** the vdbePmaReaderIncrMergeInit() function with the parameters passed to
-** this routine to initialize the incremental merge.
-** 
-** If the IncrMerger object is multi-threaded (IncrMerger.bUseThread==1), 
-** then a background thread is launched to call vdbePmaReaderIncrMergeInit().
-** Or, if the IncrMerger is single threaded, the same function is called
-** using the current thread.
-*/
-static int vdbePmaReaderIncrInit(PmaReader *pReadr, int eMode){
-  IncrMerger *pIncr = pReadr->pIncr;   /* Incremental merger */
-  int rc = SQLITE_OK;                  /* Return code */
-  if( pIncr ){
-#if SQLITE_MAX_WORKER_THREADS>0
-    assert( pIncr->bUseThread==0 || eMode==INCRINIT_TASK );
-    if( pIncr->bUseThread ){
-      void *pCtx = (void*)pReadr;
-      rc = vdbeSorterCreateThread(pIncr->pTask, vdbePmaReaderBgIncrInit, pCtx);
-    }else
-#endif
-    {
-      rc = vdbePmaReaderIncrMergeInit(pReadr, eMode);
-    }
-  }
-  return rc;
-}
-
-/*
-** Allocate a new MergeEngine object to merge the contents of nPMA level-0
-** PMAs from pTask->file. If no error occurs, set *ppOut to point to
-** the new object and return SQLITE_OK. Or, if an error does occur, set *ppOut
-** to NULL and return an SQLite error code.
-**
-** When this function is called, *piOffset is set to the offset of the
-** first PMA to read from pTask->file. Assuming no error occurs, it is 
-** set to the offset immediately following the last byte of the last
-** PMA before returning. If an error does occur, then the final value of
-** *piOffset is undefined.
-*/
-static int vdbeMergeEngineLevel0(
-  SortSubtask *pTask,             /* Sorter task to read from */
-  int nPMA,                       /* Number of PMAs to read */
-  i64 *piOffset,                  /* IN/OUT: Readr offset in pTask->file */
-  MergeEngine **ppOut             /* OUT: New merge-engine */
-){
-  MergeEngine *pNew;              /* Merge engine to return */
-  i64 iOff = *piOffset;
-  int i;
-  int rc = SQLITE_OK;
-
-  *ppOut = pNew = vdbeMergeEngineNew(nPMA);
-  if( pNew==0 ) rc = SQLITE_NOMEM_BKPT;
-
-  for(i=0; i<nPMA && rc==SQLITE_OK; i++){
-    i64 nDummy = 0;
-    PmaReader *pReadr = &pNew->aReadr[i];
-    rc = vdbePmaReaderInit(pTask, &pTask->file, iOff, pReadr, &nDummy);
-    iOff = pReadr->iEof;
-  }
-
-  if( rc!=SQLITE_OK ){
-    vdbeMergeEngineFree(pNew);
-    *ppOut = 0;
-  }
-  *piOffset = iOff;
-  return rc;
-}
-
-/*
-** Return the depth of a tree comprising nPMA PMAs, assuming a fanout of
-** SORTER_MAX_MERGE_COUNT. The returned value does not include leaf nodes.
-**
-** i.e.
-**
-**   nPMA<=16    -> TreeDepth() == 0
-**   nPMA<=256   -> TreeDepth() == 1
-**   nPMA<=65536 -> TreeDepth() == 2
-*/
-static int vdbeSorterTreeDepth(int nPMA){
-  int nDepth = 0;
-  i64 nDiv = SORTER_MAX_MERGE_COUNT;
-  while( nDiv < (i64)nPMA ){
-    nDiv = nDiv * SORTER_MAX_MERGE_COUNT;
-    nDepth++;
-  }
-  return nDepth;
-}
-
-/*
-** pRoot is the root of an incremental merge-tree with depth nDepth (according
-** to vdbeSorterTreeDepth()). pLeaf is the iSeq'th leaf to be added to the
-** tree, counting from zero. This function adds pLeaf to the tree.
-**
-** If successful, SQLITE_OK is returned. If an error occurs, an SQLite error
-** code is returned and pLeaf is freed.
-*/
-static int vdbeSorterAddToTree(
-  SortSubtask *pTask,             /* Task context */
-  int nDepth,                     /* Depth of tree according to TreeDepth() */
-  int iSeq,                       /* Sequence number of leaf within tree */
-  MergeEngine *pRoot,             /* Root of tree */
-  MergeEngine *pLeaf              /* Leaf to add to tree */
-){
-  int rc = SQLITE_OK;
-  int nDiv = 1;
-  int i;
-  MergeEngine *p = pRoot;
-  IncrMerger *pIncr;
-
-  rc = vdbeIncrMergerNew(pTask, pLeaf, &pIncr);
-
-  for(i=1; i<nDepth; i++){
-    nDiv = nDiv * SORTER_MAX_MERGE_COUNT;
-  }
-
-  for(i=1; i<nDepth && rc==SQLITE_OK; i++){
-    int iIter = (iSeq / nDiv) % SORTER_MAX_MERGE_COUNT;
-    PmaReader *pReadr = &p->aReadr[iIter];
-
-    if( pReadr->pIncr==0 ){
-      MergeEngine *pNew = vdbeMergeEngineNew(SORTER_MAX_MERGE_COUNT);
-      if( pNew==0 ){
-        rc = SQLITE_NOMEM_BKPT;
-      }else{
-        rc = vdbeIncrMergerNew(pTask, pNew, &pReadr->pIncr);
-      }
-    }
-    if( rc==SQLITE_OK ){
-      p = pReadr->pIncr->pMerger;
-      nDiv = nDiv / SORTER_MAX_MERGE_COUNT;
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    p->aReadr[iSeq % SORTER_MAX_MERGE_COUNT].pIncr = pIncr;
-  }else{
-    vdbeIncrFree(pIncr);
-  }
-  return rc;
-}
-
-/*
-** This function is called as part of a SorterRewind() operation on a sorter
-** that has already written two or more level-0 PMAs to one or more temp
-** files. It builds a tree of MergeEngine/IncrMerger/PmaReader objects that 
-** can be used to incrementally merge all PMAs on disk.
-**
-** If successful, SQLITE_OK is returned and *ppOut set to point to the
-** MergeEngine object at the root of the tree before returning. Or, if an
-** error occurs, an SQLite error code is returned and the final value 
-** of *ppOut is undefined.
-*/
-static int vdbeSorterMergeTreeBuild(
-  VdbeSorter *pSorter,       /* The VDBE cursor that implements the sort */
-  MergeEngine **ppOut        /* Write the MergeEngine here */
-){
-  MergeEngine *pMain = 0;
-  int rc = SQLITE_OK;
-  int iTask;
-
-#if SQLITE_MAX_WORKER_THREADS>0
-  /* If the sorter uses more than one task, then create the top-level 
-  ** MergeEngine here. This MergeEngine will read data from exactly 
-  ** one PmaReader per sub-task.  */
-  assert( pSorter->bUseThreads || pSorter->nTask==1 );
-  if( pSorter->nTask>1 ){
-    pMain = vdbeMergeEngineNew(pSorter->nTask);
-    if( pMain==0 ) rc = SQLITE_NOMEM_BKPT;
-  }
-#endif
-
-  for(iTask=0; rc==SQLITE_OK && iTask<pSorter->nTask; iTask++){
-    SortSubtask *pTask = &pSorter->aTask[iTask];
-    assert( pTask->nPMA>0 || SQLITE_MAX_WORKER_THREADS>0 );
-    if( SQLITE_MAX_WORKER_THREADS==0 || pTask->nPMA ){
-      MergeEngine *pRoot = 0;     /* Root node of tree for this task */
-      int nDepth = vdbeSorterTreeDepth(pTask->nPMA);
-      i64 iReadOff = 0;
-
-      if( pTask->nPMA<=SORTER_MAX_MERGE_COUNT ){
-        rc = vdbeMergeEngineLevel0(pTask, pTask->nPMA, &iReadOff, &pRoot);
-      }else{
-        int i;
-        int iSeq = 0;
-        pRoot = vdbeMergeEngineNew(SORTER_MAX_MERGE_COUNT);
-        if( pRoot==0 ) rc = SQLITE_NOMEM_BKPT;
-        for(i=0; i<pTask->nPMA && rc==SQLITE_OK; i += SORTER_MAX_MERGE_COUNT){
-          MergeEngine *pMerger = 0; /* New level-0 PMA merger */
-          int nReader;              /* Number of level-0 PMAs to merge */
-
-          nReader = MIN(pTask->nPMA - i, SORTER_MAX_MERGE_COUNT);
-          rc = vdbeMergeEngineLevel0(pTask, nReader, &iReadOff, &pMerger);
-          if( rc==SQLITE_OK ){
-            rc = vdbeSorterAddToTree(pTask, nDepth, iSeq++, pRoot, pMerger);
-          }
-        }
-      }
-
-      if( rc==SQLITE_OK ){
-#if SQLITE_MAX_WORKER_THREADS>0
-        if( pMain!=0 ){
-          rc = vdbeIncrMergerNew(pTask, pRoot, &pMain->aReadr[iTask].pIncr);
-        }else
-#endif
-        {
-          assert( pMain==0 );
-          pMain = pRoot;
-        }
-      }else{
-        vdbeMergeEngineFree(pRoot);
-      }
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    vdbeMergeEngineFree(pMain);
-    pMain = 0;
-  }
-  *ppOut = pMain;
-  return rc;
-}
-
-/*
-** This function is called as part of an tdsqlite3VdbeSorterRewind() operation
-** on a sorter that has written two or more PMAs to temporary files. It sets
-** up either VdbeSorter.pMerger (for single threaded sorters) or pReader
-** (for multi-threaded sorters) so that it can be used to iterate through
-** all records stored in the sorter.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-*/
-static int vdbeSorterSetupMerge(VdbeSorter *pSorter){
-  int rc;                         /* Return code */
-  SortSubtask *pTask0 = &pSorter->aTask[0];
-  MergeEngine *pMain = 0;
-#if SQLITE_MAX_WORKER_THREADS
-  tdsqlite3 *db = pTask0->pSorter->db;
-  int i;
-  SorterCompare xCompare = vdbeSorterGetCompare(pSorter);
-  for(i=0; i<pSorter->nTask; i++){
-    pSorter->aTask[i].xCompare = xCompare;
-  }
-#endif
-
-  rc = vdbeSorterMergeTreeBuild(pSorter, &pMain);
-  if( rc==SQLITE_OK ){
-#if SQLITE_MAX_WORKER_THREADS
-    assert( pSorter->bUseThreads==0 || pSorter->nTask>1 );
-    if( pSorter->bUseThreads ){
-      int iTask;
-      PmaReader *pReadr = 0;
-      SortSubtask *pLast = &pSorter->aTask[pSorter->nTask-1];
-      rc = vdbeSortAllocUnpacked(pLast);
-      if( rc==SQLITE_OK ){
-        pReadr = (PmaReader*)tdsqlite3DbMallocZero(db, sizeof(PmaReader));
-        pSorter->pReader = pReadr;
-        if( pReadr==0 ) rc = SQLITE_NOMEM_BKPT;
-      }
-      if( rc==SQLITE_OK ){
-        rc = vdbeIncrMergerNew(pLast, pMain, &pReadr->pIncr);
-        if( rc==SQLITE_OK ){
-          vdbeIncrMergerSetThreads(pReadr->pIncr);
-          for(iTask=0; iTask<(pSorter->nTask-1); iTask++){
-            IncrMerger *pIncr;
-            if( (pIncr = pMain->aReadr[iTask].pIncr) ){
-              vdbeIncrMergerSetThreads(pIncr);
-              assert( pIncr->pTask!=pLast );
-            }
-          }
-          for(iTask=0; rc==SQLITE_OK && iTask<pSorter->nTask; iTask++){
-            /* Check that:
-            **   
-            **   a) The incremental merge object is configured to use the
-            **      right task, and
-            **   b) If it is using task (nTask-1), it is configured to run
-            **      in single-threaded mode. This is important, as the
-            **      root merge (INCRINIT_ROOT) will be using the same task
-            **      object.
-            */
-            PmaReader *p = &pMain->aReadr[iTask];
-            assert( p->pIncr==0 || (
-                (p->pIncr->pTask==&pSorter->aTask[iTask])             /* a */
-             && (iTask!=pSorter->nTask-1 || p->pIncr->bUseThread==0)  /* b */
-            ));
-            rc = vdbePmaReaderIncrInit(p, INCRINIT_TASK);
-          }
-        }
-        pMain = 0;
-      }
-      if( rc==SQLITE_OK ){
-        rc = vdbePmaReaderIncrMergeInit(pReadr, INCRINIT_ROOT);
-      }
-    }else
-#endif
-    {
-      rc = vdbeMergeEngineInit(pTask0, pMain, INCRINIT_NORMAL);
-      pSorter->pMerger = pMain;
-      pMain = 0;
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    vdbeMergeEngineFree(pMain);
-  }
-  return rc;
-}
-
-
-/*
-** Once the sorter has been populated by calls to tdsqlite3VdbeSorterWrite,
-** this function is called to prepare for iterating through the records
-** in sorted order.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeSorterRewind(const VdbeCursor *pCsr, int *pbEof){
-  VdbeSorter *pSorter;
-  int rc = SQLITE_OK;             /* Return code */
-
-  assert( pCsr->eCurType==CURTYPE_SORTER );
-  pSorter = pCsr->uc.pSorter;
-  assert( pSorter );
-
-  /* If no data has been written to disk, then do not do so now. Instead,
-  ** sort the VdbeSorter.pRecord list. The vdbe layer will read data directly
-  ** from the in-memory list.  */
-  if( pSorter->bUsePMA==0 ){
-    if( pSorter->list.pList ){
-      *pbEof = 0;
-      rc = vdbeSorterSort(&pSorter->aTask[0], &pSorter->list);
-    }else{
-      *pbEof = 1;
-    }
-    return rc;
-  }
-
-  /* Write the current in-memory list to a PMA. When the VdbeSorterWrite() 
-  ** function flushes the contents of memory to disk, it immediately always
-  ** creates a new list consisting of a single key immediately afterwards.
-  ** So the list is never empty at this point.  */
-  assert( pSorter->list.pList );
-  rc = vdbeSorterFlushPMA(pSorter);
-
-  /* Join all threads */
-  rc = vdbeSorterJoinAll(pSorter, rc);
-
-  vdbeSorterRewindDebug("rewind");
-
-  /* Assuming no errors have occurred, set up a merger structure to 
-  ** incrementally read and merge all remaining PMAs.  */
-  assert( pSorter->pReader==0 );
-  if( rc==SQLITE_OK ){
-    rc = vdbeSorterSetupMerge(pSorter);
-    *pbEof = 0;
-  }
-
-  vdbeSorterRewindDebug("rewinddone");
-  return rc;
-}
-
-/*
-** Advance to the next element in the sorter.  Return value:
-**
-**    SQLITE_OK     success
-**    SQLITE_DONE   end of data
-**    otherwise     some kind of error.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeSorterNext(tdsqlite3 *db, const VdbeCursor *pCsr){
-  VdbeSorter *pSorter;
-  int rc;                         /* Return code */
-
-  assert( pCsr->eCurType==CURTYPE_SORTER );
-  pSorter = pCsr->uc.pSorter;
-  assert( pSorter->bUsePMA || (pSorter->pReader==0 && pSorter->pMerger==0) );
-  if( pSorter->bUsePMA ){
-    assert( pSorter->pReader==0 || pSorter->pMerger==0 );
-    assert( pSorter->bUseThreads==0 || pSorter->pReader );
-    assert( pSorter->bUseThreads==1 || pSorter->pMerger );
-#if SQLITE_MAX_WORKER_THREADS>0
-    if( pSorter->bUseThreads ){
-      rc = vdbePmaReaderNext(pSorter->pReader);
-      if( rc==SQLITE_OK && pSorter->pReader->pFd==0 ) rc = SQLITE_DONE;
-    }else
-#endif
-    /*if( !pSorter->bUseThreads )*/ {
-      int res = 0;
-      assert( pSorter->pMerger!=0 );
-      assert( pSorter->pMerger->pTask==(&pSorter->aTask[0]) );
-      rc = vdbeMergeEngineStep(pSorter->pMerger, &res);
-      if( rc==SQLITE_OK && res ) rc = SQLITE_DONE;
-    }
-  }else{
-    SorterRecord *pFree = pSorter->list.pList;
-    pSorter->list.pList = pFree->u.pNext;
-    pFree->u.pNext = 0;
-    if( pSorter->list.aMemory==0 ) vdbeSorterRecordFree(db, pFree);
-    rc = pSorter->list.pList ? SQLITE_OK : SQLITE_DONE;
-  }
-  return rc;
-}
-
-/*
-** Return a pointer to a buffer owned by the sorter that contains the 
-** current key.
-*/
-static void *vdbeSorterRowkey(
-  const VdbeSorter *pSorter,      /* Sorter object */
-  int *pnKey                      /* OUT: Size of current key in bytes */
-){
-  void *pKey;
-  if( pSorter->bUsePMA ){
-    PmaReader *pReader;
-#if SQLITE_MAX_WORKER_THREADS>0
-    if( pSorter->bUseThreads ){
-      pReader = pSorter->pReader;
-    }else
-#endif
-    /*if( !pSorter->bUseThreads )*/{
-      pReader = &pSorter->pMerger->aReadr[pSorter->pMerger->aTree[1]];
-    }
-    *pnKey = pReader->nKey;
-    pKey = pReader->aKey;
-  }else{
-    *pnKey = pSorter->list.pList->nVal;
-    pKey = SRVAL(pSorter->list.pList);
-  }
-  return pKey;
-}
-
-/*
-** Copy the current sorter key into the memory cell pOut.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeSorterRowkey(const VdbeCursor *pCsr, Mem *pOut){
-  VdbeSorter *pSorter;
-  void *pKey; int nKey;           /* Sorter key to copy into pOut */
-
-  assert( pCsr->eCurType==CURTYPE_SORTER );
-  pSorter = pCsr->uc.pSorter;
-  pKey = vdbeSorterRowkey(pSorter, &nKey);
-  if( tdsqlite3VdbeMemClearAndResize(pOut, nKey) ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  pOut->n = nKey;
-  MemSetTypeFlag(pOut, MEM_Blob);
-  memcpy(pOut->z, pKey, nKey);
-
-  return SQLITE_OK;
-}
-
-/*
-** Compare the key in memory cell pVal with the key that the sorter cursor
-** passed as the first argument currently points to. For the purposes of
-** the comparison, ignore the rowid field at the end of each record.
-**
-** If the sorter cursor key contains any NULL values, consider it to be
-** less than pVal. Even if pVal also contains NULL values.
-**
-** If an error occurs, return an SQLite error code (i.e. SQLITE_NOMEM).
-** Otherwise, set *pRes to a negative, zero or positive value if the
-** key in pVal is smaller than, equal to or larger than the current sorter
-** key.
-**
-** This routine forms the core of the OP_SorterCompare opcode, which in
-** turn is used to verify uniqueness when constructing a UNIQUE INDEX.
-*/
-SQLITE_PRIVATE int tdsqlite3VdbeSorterCompare(
-  const VdbeCursor *pCsr,         /* Sorter cursor */
-  Mem *pVal,                      /* Value to compare to current sorter key */
-  int nKeyCol,                    /* Compare this many columns */
-  int *pRes                       /* OUT: Result of comparison */
-){
-  VdbeSorter *pSorter;
-  UnpackedRecord *r2;
-  KeyInfo *pKeyInfo;
-  int i;
-  void *pKey; int nKey;           /* Sorter key to compare pVal with */
-
-  assert( pCsr->eCurType==CURTYPE_SORTER );
-  pSorter = pCsr->uc.pSorter;
-  r2 = pSorter->pUnpacked;
-  pKeyInfo = pCsr->pKeyInfo;
-  if( r2==0 ){
-    r2 = pSorter->pUnpacked = tdsqlite3VdbeAllocUnpackedRecord(pKeyInfo);
-    if( r2==0 ) return SQLITE_NOMEM_BKPT;
-    r2->nField = nKeyCol;
-  }
-  assert( r2->nField==nKeyCol );
-
-  pKey = vdbeSorterRowkey(pSorter, &nKey);
-  tdsqlite3VdbeRecordUnpack(pKeyInfo, nKey, pKey, r2);
-  for(i=0; i<nKeyCol; i++){
-    if( r2->aMem[i].flags & MEM_Null ){
-      *pRes = -1;
-      return SQLITE_OK;
-    }
-  }
-
-  *pRes = tdsqlite3VdbeRecordCompare(pVal->n, pVal->z, r2);
-  return SQLITE_OK;
-}
-
-/************** End of vdbesort.c ********************************************/
-/************** Begin file memjournal.c **************************************/
-/*
-** 2008 October 7
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains code use to implement an in-memory rollback journal.
-** The in-memory rollback journal is used to journal transactions for
-** ":memory:" databases and when the journal_mode=MEMORY pragma is used.
-**
-** Update:  The in-memory journal is also used to temporarily cache
-** smaller journals that are not critical for power-loss recovery.
-** For example, statement journals that are not too big will be held
-** entirely in memory, thus reducing the number of file I/O calls, and
-** more importantly, reducing temporary file creation events.  If these
-** journals become too large for memory, they are spilled to disk.  But
-** in the common case, they are usually small and no file I/O needs to
-** occur.
-*/
-/* #include "sqliteInt.h" */
-
-/* Forward references to internal structures */
-typedef struct MemJournal MemJournal;
-typedef struct FilePoint FilePoint;
-typedef struct FileChunk FileChunk;
-
-/*
-** The rollback journal is composed of a linked list of these structures.
-**
-** The zChunk array is always at least 8 bytes in size - usually much more.
-** Its actual size is stored in the MemJournal.nChunkSize variable.
-*/
-struct FileChunk {
-  FileChunk *pNext;               /* Next chunk in the journal */
-  u8 zChunk[8];                   /* Content of this chunk */
-};
-
-/*
-** By default, allocate this many bytes of memory for each FileChunk object.
-*/
-#define MEMJOURNAL_DFLT_FILECHUNKSIZE 1024
-
-/*
-** For chunk size nChunkSize, return the number of bytes that should
-** be allocated for each FileChunk structure.
-*/
-#define fileChunkSize(nChunkSize) (sizeof(FileChunk) + ((nChunkSize)-8))
-
-/*
-** An instance of this object serves as a cursor into the rollback journal.
-** The cursor can be either for reading or writing.
-*/
-struct FilePoint {
-  tdsqlite3_int64 iOffset;          /* Offset from the beginning of the file */
-  FileChunk *pChunk;              /* Specific chunk into which cursor points */
-};
-
-/*
-** This structure is a subclass of tdsqlite3_file. Each open memory-journal
-** is an instance of this class.
-*/
-struct MemJournal {
-  const tdsqlite3_io_methods *pMethod; /* Parent class. MUST BE FIRST */
-  int nChunkSize;                 /* In-memory chunk-size */
-
-  int nSpill;                     /* Bytes of data before flushing */
-  int nSize;                      /* Bytes of data currently in memory */
-  FileChunk *pFirst;              /* Head of in-memory chunk-list */
-  FilePoint endpoint;             /* Pointer to the end of the file */
-  FilePoint readpoint;            /* Pointer to the end of the last xRead() */
-
-  int flags;                      /* xOpen flags */
-  tdsqlite3_vfs *pVfs;              /* The "real" underlying VFS */
-  const char *zJournal;           /* Name of the journal file */
-};
-
-/*
-** Read data from the in-memory journal file.  This is the implementation
-** of the tdsqlite3_vfs.xRead method.
-*/
-static int memjrnlRead(
-  tdsqlite3_file *pJfd,    /* The journal file from which to read */
-  void *zBuf,            /* Put the results here */
-  int iAmt,              /* Number of bytes to read */
-  sqlite_int64 iOfst     /* Begin reading at this offset */
-){
-  MemJournal *p = (MemJournal *)pJfd;
-  u8 *zOut = zBuf;
-  int nRead = iAmt;
-  int iChunkOffset;
-  FileChunk *pChunk;
-
-  if( (iAmt+iOfst)>p->endpoint.iOffset ){
-    return SQLITE_IOERR_SHORT_READ;
-  }
-  assert( p->readpoint.iOffset==0 || p->readpoint.pChunk!=0 );
-  if( p->readpoint.iOffset!=iOfst || iOfst==0 ){
-    tdsqlite3_int64 iOff = 0;
-    for(pChunk=p->pFirst; 
-        ALWAYS(pChunk) && (iOff+p->nChunkSize)<=iOfst;
-        pChunk=pChunk->pNext
-    ){
-      iOff += p->nChunkSize;
-    }
-  }else{
-    pChunk = p->readpoint.pChunk;
-    assert( pChunk!=0 );
-  }
-
-  iChunkOffset = (int)(iOfst%p->nChunkSize);
-  do {
-    int iSpace = p->nChunkSize - iChunkOffset;
-    int nCopy = MIN(nRead, (p->nChunkSize - iChunkOffset));
-    memcpy(zOut, (u8*)pChunk->zChunk + iChunkOffset, nCopy);
-    zOut += nCopy;
-    nRead -= iSpace;
-    iChunkOffset = 0;
-  } while( nRead>=0 && (pChunk=pChunk->pNext)!=0 && nRead>0 );
-  p->readpoint.iOffset = pChunk ? iOfst+iAmt : 0;
-  p->readpoint.pChunk = pChunk;
-
-  return SQLITE_OK;
-}
-
-/*
-** Free the list of FileChunk structures headed at MemJournal.pFirst.
-*/
-static void memjrnlFreeChunks(MemJournal *p){
-  FileChunk *pIter;
-  FileChunk *pNext;
-  for(pIter=p->pFirst; pIter; pIter=pNext){
-    pNext = pIter->pNext;
-    tdsqlite3_free(pIter);
-  } 
-  p->pFirst = 0;
-}
-
-/*
-** Flush the contents of memory to a real file on disk.
-*/
-static int memjrnlCreateFile(MemJournal *p){
-  int rc;
-  tdsqlite3_file *pReal = (tdsqlite3_file*)p;
-  MemJournal copy = *p;
-
-  memset(p, 0, sizeof(MemJournal));
-  rc = tdsqlite3OsOpen(copy.pVfs, copy.zJournal, pReal, copy.flags, 0);
-  if( rc==SQLITE_OK ){
-    int nChunk = copy.nChunkSize;
-    i64 iOff = 0;
-    FileChunk *pIter;
-    for(pIter=copy.pFirst; pIter; pIter=pIter->pNext){
-      if( iOff + nChunk > copy.endpoint.iOffset ){
-        nChunk = copy.endpoint.iOffset - iOff;
-      }
-      rc = tdsqlite3OsWrite(pReal, (u8*)pIter->zChunk, nChunk, iOff);
-      if( rc ) break;
-      iOff += nChunk;
-    }
-    if( rc==SQLITE_OK ){
-      /* No error has occurred. Free the in-memory buffers. */
-      memjrnlFreeChunks(&copy);
-    }
-  }
-  if( rc!=SQLITE_OK ){
-    /* If an error occurred while creating or writing to the file, restore
-    ** the original before returning. This way, SQLite uses the in-memory
-    ** journal data to roll back changes made to the internal page-cache
-    ** before this function was called.  */
-    tdsqlite3OsClose(pReal);
-    *p = copy;
-  }
-  return rc;
-}
-
-
-/*
-** Write data to the file.
-*/
-static int memjrnlWrite(
-  tdsqlite3_file *pJfd,    /* The journal file into which to write */
-  const void *zBuf,      /* Take data to be written from here */
-  int iAmt,              /* Number of bytes to write */
-  sqlite_int64 iOfst     /* Begin writing at this offset into the file */
-){
-  MemJournal *p = (MemJournal *)pJfd;
-  int nWrite = iAmt;
-  u8 *zWrite = (u8 *)zBuf;
-
-  /* If the file should be created now, create it and write the new data
-  ** into the file on disk. */
-  if( p->nSpill>0 && (iAmt+iOfst)>p->nSpill ){
-    int rc = memjrnlCreateFile(p);
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3OsWrite(pJfd, zBuf, iAmt, iOfst);
-    }
-    return rc;
-  }
-
-  /* If the contents of this write should be stored in memory */
-  else{
-    /* An in-memory journal file should only ever be appended to. Random
-    ** access writes are not required. The only exception to this is when
-    ** the in-memory journal is being used by a connection using the
-    ** atomic-write optimization. In this case the first 28 bytes of the
-    ** journal file may be written as part of committing the transaction. */ 
-    assert( iOfst==p->endpoint.iOffset || iOfst==0 );
-#if defined(SQLITE_ENABLE_ATOMIC_WRITE) \
- || defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
-    if( iOfst==0 && p->pFirst ){
-      assert( p->nChunkSize>iAmt );
-      memcpy((u8*)p->pFirst->zChunk, zBuf, iAmt);
-    }else
-#else
-    assert( iOfst>0 || p->pFirst==0 );
-#endif
-    {
-      while( nWrite>0 ){
-        FileChunk *pChunk = p->endpoint.pChunk;
-        int iChunkOffset = (int)(p->endpoint.iOffset%p->nChunkSize);
-        int iSpace = MIN(nWrite, p->nChunkSize - iChunkOffset);
-
-        if( iChunkOffset==0 ){
-          /* New chunk is required to extend the file. */
-          FileChunk *pNew = tdsqlite3_malloc(fileChunkSize(p->nChunkSize));
-          if( !pNew ){
-            return SQLITE_IOERR_NOMEM_BKPT;
-          }
-          pNew->pNext = 0;
-          if( pChunk ){
-            assert( p->pFirst );
-            pChunk->pNext = pNew;
-          }else{
-            assert( !p->pFirst );
-            p->pFirst = pNew;
-          }
-          p->endpoint.pChunk = pNew;
-        }
-
-        memcpy((u8*)p->endpoint.pChunk->zChunk + iChunkOffset, zWrite, iSpace);
-        zWrite += iSpace;
-        nWrite -= iSpace;
-        p->endpoint.iOffset += iSpace;
-      }
-      p->nSize = iAmt + iOfst;
-    }
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Truncate the file.
-**
-** If the journal file is already on disk, truncate it there. Or, if it
-** is still in main memory but is being truncated to zero bytes in size,
-** ignore 
-*/
-static int memjrnlTruncate(tdsqlite3_file *pJfd, sqlite_int64 size){
-  MemJournal *p = (MemJournal *)pJfd;
-  if( ALWAYS(size==0) ){
-    memjrnlFreeChunks(p);
-    p->nSize = 0;
-    p->endpoint.pChunk = 0;
-    p->endpoint.iOffset = 0;
-    p->readpoint.pChunk = 0;
-    p->readpoint.iOffset = 0;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Close the file.
-*/
-static int memjrnlClose(tdsqlite3_file *pJfd){
-  MemJournal *p = (MemJournal *)pJfd;
-  memjrnlFreeChunks(p);
-  return SQLITE_OK;
-}
-
-/*
-** Sync the file.
-**
-** If the real file has been created, call its xSync method. Otherwise, 
-** syncing an in-memory journal is a no-op. 
-*/
-static int memjrnlSync(tdsqlite3_file *pJfd, int flags){
-  UNUSED_PARAMETER2(pJfd, flags);
-  return SQLITE_OK;
-}
-
-/*
-** Query the size of the file in bytes.
-*/
-static int memjrnlFileSize(tdsqlite3_file *pJfd, sqlite_int64 *pSize){
-  MemJournal *p = (MemJournal *)pJfd;
-  *pSize = (sqlite_int64) p->endpoint.iOffset;
-  return SQLITE_OK;
-}
-
-/*
-** Table of methods for MemJournal tdsqlite3_file object.
-*/
-static const struct tdsqlite3_io_methods MemJournalMethods = {
-  1,                /* iVersion */
-  memjrnlClose,     /* xClose */
-  memjrnlRead,      /* xRead */
-  memjrnlWrite,     /* xWrite */
-  memjrnlTruncate,  /* xTruncate */
-  memjrnlSync,      /* xSync */
-  memjrnlFileSize,  /* xFileSize */
-  0,                /* xLock */
-  0,                /* xUnlock */
-  0,                /* xCheckReservedLock */
-  0,                /* xFileControl */
-  0,                /* xSectorSize */
-  0,                /* xDeviceCharacteristics */
-  0,                /* xShmMap */
-  0,                /* xShmLock */
-  0,                /* xShmBarrier */
-  0,                /* xShmUnmap */
-  0,                /* xFetch */
-  0                 /* xUnfetch */
-};
-
-/* 
-** Open a journal file. 
-**
-** The behaviour of the journal file depends on the value of parameter 
-** nSpill. If nSpill is 0, then the journal file is always create and 
-** accessed using the underlying VFS. If nSpill is less than zero, then
-** all content is always stored in main-memory. Finally, if nSpill is a
-** positive value, then the journal file is initially created in-memory
-** but may be flushed to disk later on. In this case the journal file is
-** flushed to disk either when it grows larger than nSpill bytes in size,
-** or when tdsqlite3JournalCreate() is called.
-*/
-SQLITE_PRIVATE int tdsqlite3JournalOpen(
-  tdsqlite3_vfs *pVfs,         /* The VFS to use for actual file I/O */
-  const char *zName,         /* Name of the journal file */
-  tdsqlite3_file *pJfd,        /* Preallocated, blank file handle */
-  int flags,                 /* Opening flags */
-  int nSpill                 /* Bytes buffered before opening the file */
-){
-  MemJournal *p = (MemJournal*)pJfd;
-
-  /* Zero the file-handle object. If nSpill was passed zero, initialize
-  ** it using the tdsqlite3OsOpen() function of the underlying VFS. In this
-  ** case none of the code in this module is executed as a result of calls
-  ** made on the journal file-handle.  */
-  memset(p, 0, sizeof(MemJournal));
-  if( nSpill==0 ){
-    return tdsqlite3OsOpen(pVfs, zName, pJfd, flags, 0);
-  }
-
-  if( nSpill>0 ){
-    p->nChunkSize = nSpill;
-  }else{
-    p->nChunkSize = 8 + MEMJOURNAL_DFLT_FILECHUNKSIZE - sizeof(FileChunk);
-    assert( MEMJOURNAL_DFLT_FILECHUNKSIZE==fileChunkSize(p->nChunkSize) );
-  }
-
-  p->pMethod = (const tdsqlite3_io_methods*)&MemJournalMethods;
-  p->nSpill = nSpill;
-  p->flags = flags;
-  p->zJournal = zName;
-  p->pVfs = pVfs;
-  return SQLITE_OK;
-}
-
-/*
-** Open an in-memory journal file.
-*/
-SQLITE_PRIVATE void tdsqlite3MemJournalOpen(tdsqlite3_file *pJfd){
-  tdsqlite3JournalOpen(0, 0, pJfd, 0, -1);
-}
-
-#if defined(SQLITE_ENABLE_ATOMIC_WRITE) \
- || defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
-/*
-** If the argument p points to a MemJournal structure that is not an 
-** in-memory-only journal file (i.e. is one that was opened with a +ve
-** nSpill parameter or as SQLITE_OPEN_MAIN_JOURNAL), and the underlying 
-** file has not yet been created, create it now.
-*/
-SQLITE_PRIVATE int tdsqlite3JournalCreate(tdsqlite3_file *pJfd){
-  int rc = SQLITE_OK;
-  MemJournal *p = (MemJournal*)pJfd;
-  if( p->pMethod==&MemJournalMethods && (
-#ifdef SQLITE_ENABLE_ATOMIC_WRITE
-     p->nSpill>0
-#else
-     /* While this appears to not be possible without ATOMIC_WRITE, the
-     ** paths are complex, so it seems prudent to leave the test in as
-     ** a NEVER(), in case our analysis is subtly flawed. */
-     NEVER(p->nSpill>0)
-#endif
-#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
-     || (p->flags & SQLITE_OPEN_MAIN_JOURNAL)
-#endif
-  )){
-    rc = memjrnlCreateFile(p);
-  }
-  return rc;
-}
-#endif
-
-/*
-** The file-handle passed as the only argument is open on a journal file.
-** Return true if this "journal file" is currently stored in heap memory,
-** or false otherwise.
-*/
-SQLITE_PRIVATE int tdsqlite3JournalIsInMemory(tdsqlite3_file *p){
-  return p->pMethods==&MemJournalMethods;
-}
-
-/* 
-** Return the number of bytes required to store a JournalFile that uses vfs
-** pVfs to create the underlying on-disk files.
-*/
-SQLITE_PRIVATE int tdsqlite3JournalSize(tdsqlite3_vfs *pVfs){
-  return MAX(pVfs->szOsFile, (int)sizeof(MemJournal));
-}
-
-/************** End of memjournal.c ******************************************/
-/************** Begin file walker.c ******************************************/
-/*
-** 2008 August 16
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains routines used for walking the parser tree for
-** an SQL statement.
-*/
-/* #include "sqliteInt.h" */
-/* #include <stdlib.h> */
-/* #include <string.h> */
-
-
-#if !defined(SQLITE_OMIT_WINDOWFUNC)
-/*
-** Walk all expressions linked into the list of Window objects passed
-** as the second argument.
-*/
-static int walkWindowList(Walker *pWalker, Window *pList){
-  Window *pWin;
-  for(pWin=pList; pWin; pWin=pWin->pNextWin){
-    int rc;
-    rc = tdsqlite3WalkExprList(pWalker, pWin->pOrderBy);
-    if( rc ) return WRC_Abort;
-    rc = tdsqlite3WalkExprList(pWalker, pWin->pPartition);
-    if( rc ) return WRC_Abort;
-    rc = tdsqlite3WalkExpr(pWalker, pWin->pFilter);
-    if( rc ) return WRC_Abort;
-
-    /* The next two are purely for calls to tdsqlite3RenameExprUnmap()
-    ** within tdsqlite3WindowOffsetExpr().  Because of constraints imposed
-    ** by tdsqlite3WindowOffsetExpr(), they can never fail.  The results do
-    ** not matter anyhow. */
-    rc = tdsqlite3WalkExpr(pWalker, pWin->pStart);
-    if( NEVER(rc) ) return WRC_Abort;
-    rc = tdsqlite3WalkExpr(pWalker, pWin->pEnd);
-    if( NEVER(rc) ) return WRC_Abort;
-  }
-  return WRC_Continue;
-}
-#endif
-
-/*
-** Walk an expression tree.  Invoke the callback once for each node
-** of the expression, while descending.  (In other words, the callback
-** is invoked before visiting children.)
-**
-** The return value from the callback should be one of the WRC_*
-** constants to specify how to proceed with the walk.
-**
-**    WRC_Continue      Continue descending down the tree.
-**
-**    WRC_Prune         Do not descend into child nodes, but allow
-**                      the walk to continue with sibling nodes.
-**
-**    WRC_Abort         Do no more callbacks.  Unwind the stack and
-**                      return from the top-level walk call.
-**
-** The return value from this routine is WRC_Abort to abandon the tree walk
-** and WRC_Continue to continue.
-*/
-static SQLITE_NOINLINE int walkExpr(Walker *pWalker, Expr *pExpr){
-  int rc;
-  testcase( ExprHasProperty(pExpr, EP_TokenOnly) );
-  testcase( ExprHasProperty(pExpr, EP_Reduced) );
-  while(1){
-    rc = pWalker->xExprCallback(pWalker, pExpr);
-    if( rc ) return rc & WRC_Abort;
-    if( !ExprHasProperty(pExpr,(EP_TokenOnly|EP_Leaf)) ){
-      assert( pExpr->x.pList==0 || pExpr->pRight==0 );
-      if( pExpr->pLeft && walkExpr(pWalker, pExpr->pLeft) ) return WRC_Abort;
-      if( pExpr->pRight ){
-        assert( !ExprHasProperty(pExpr, EP_WinFunc) );
-        pExpr = pExpr->pRight;
-        continue;
-      }else if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-        assert( !ExprHasProperty(pExpr, EP_WinFunc) );
-        if( tdsqlite3WalkSelect(pWalker, pExpr->x.pSelect) ) return WRC_Abort;
-      }else{
-        if( pExpr->x.pList ){
-          if( tdsqlite3WalkExprList(pWalker, pExpr->x.pList) ) return WRC_Abort;
-        }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-        if( ExprHasProperty(pExpr, EP_WinFunc) ){
-          if( walkWindowList(pWalker, pExpr->y.pWin) ) return WRC_Abort;
-        }
-#endif
-      }
-    }
-    break;
-  }
-  return WRC_Continue;
-}
-SQLITE_PRIVATE int tdsqlite3WalkExpr(Walker *pWalker, Expr *pExpr){
-  return pExpr ? walkExpr(pWalker,pExpr) : WRC_Continue;
-}
-
-/*
-** Call tdsqlite3WalkExpr() for every expression in list p or until
-** an abort request is seen.
-*/
-SQLITE_PRIVATE int tdsqlite3WalkExprList(Walker *pWalker, ExprList *p){
-  int i;
-  struct ExprList_item *pItem;
-  if( p ){
-    for(i=p->nExpr, pItem=p->a; i>0; i--, pItem++){
-      if( tdsqlite3WalkExpr(pWalker, pItem->pExpr) ) return WRC_Abort;
-    }
-  }
-  return WRC_Continue;
-}
-
-/*
-** Walk all expressions associated with SELECT statement p.  Do
-** not invoke the SELECT callback on p, but do (of course) invoke
-** any expr callbacks and SELECT callbacks that come from subqueries.
-** Return WRC_Abort or WRC_Continue.
-*/
-SQLITE_PRIVATE int tdsqlite3WalkSelectExpr(Walker *pWalker, Select *p){
-  if( tdsqlite3WalkExprList(pWalker, p->pEList) ) return WRC_Abort;
-  if( tdsqlite3WalkExpr(pWalker, p->pWhere) ) return WRC_Abort;
-  if( tdsqlite3WalkExprList(pWalker, p->pGroupBy) ) return WRC_Abort;
-  if( tdsqlite3WalkExpr(pWalker, p->pHaving) ) return WRC_Abort;
-  if( tdsqlite3WalkExprList(pWalker, p->pOrderBy) ) return WRC_Abort;
-  if( tdsqlite3WalkExpr(pWalker, p->pLimit) ) return WRC_Abort;
-#if !defined(SQLITE_OMIT_WINDOWFUNC) && !defined(SQLITE_OMIT_ALTERTABLE)
-  {
-    Parse *pParse = pWalker->pParse;
-    if( pParse && IN_RENAME_OBJECT ){
-      /* The following may return WRC_Abort if there are unresolvable
-      ** symbols (e.g. a table that does not exist) in a window definition. */
-      int rc = walkWindowList(pWalker, p->pWinDefn);
-      return rc;
-    }
-  }
-#endif
-  return WRC_Continue;
-}
-
-/*
-** Walk the parse trees associated with all subqueries in the
-** FROM clause of SELECT statement p.  Do not invoke the select
-** callback on p, but do invoke it on each FROM clause subquery
-** and on any subqueries further down in the tree.  Return 
-** WRC_Abort or WRC_Continue;
-*/
-SQLITE_PRIVATE int tdsqlite3WalkSelectFrom(Walker *pWalker, Select *p){
-  SrcList *pSrc;
-  int i;
-  struct SrcList_item *pItem;
-
-  pSrc = p->pSrc;
-  assert( pSrc!=0 );
-  for(i=pSrc->nSrc, pItem=pSrc->a; i>0; i--, pItem++){
-    if( pItem->pSelect && tdsqlite3WalkSelect(pWalker, pItem->pSelect) ){
-      return WRC_Abort;
-    }
-    if( pItem->fg.isTabFunc
-     && tdsqlite3WalkExprList(pWalker, pItem->u1.pFuncArg)
-    ){
-      return WRC_Abort;
-    }
-  }
-  return WRC_Continue;
-} 
-
-/*
-** Call tdsqlite3WalkExpr() for every expression in Select statement p.
-** Invoke tdsqlite3WalkSelect() for subqueries in the FROM clause and
-** on the compound select chain, p->pPrior. 
-**
-** If it is not NULL, the xSelectCallback() callback is invoked before
-** the walk of the expressions and FROM clause. The xSelectCallback2()
-** method is invoked following the walk of the expressions and FROM clause,
-** but only if both xSelectCallback and xSelectCallback2 are both non-NULL
-** and if the expressions and FROM clause both return WRC_Continue;
-**
-** Return WRC_Continue under normal conditions.  Return WRC_Abort if
-** there is an abort request.
-**
-** If the Walker does not have an xSelectCallback() then this routine
-** is a no-op returning WRC_Continue.
-*/
-SQLITE_PRIVATE int tdsqlite3WalkSelect(Walker *pWalker, Select *p){
-  int rc;
-  if( p==0 ) return WRC_Continue;
-  if( pWalker->xSelectCallback==0 ) return WRC_Continue;
-  do{
-    rc = pWalker->xSelectCallback(pWalker, p);
-    if( rc ) return rc & WRC_Abort;
-    if( tdsqlite3WalkSelectExpr(pWalker, p)
-     || tdsqlite3WalkSelectFrom(pWalker, p)
-    ){
-      return WRC_Abort;
-    }
-    if( pWalker->xSelectCallback2 ){
-      pWalker->xSelectCallback2(pWalker, p);
-    }
-    p = p->pPrior;
-  }while( p!=0 );
-  return WRC_Continue;
-}
-
-/************** End of walker.c **********************************************/
-/************** Begin file resolve.c *****************************************/
-/*
-** 2008 August 18
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains routines used for walking the parser tree and
-** resolve all identifiers by associating them with a particular
-** table and column.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** Walk the expression tree pExpr and increase the aggregate function
-** depth (the Expr.op2 field) by N on every TK_AGG_FUNCTION node.
-** This needs to occur when copying a TK_AGG_FUNCTION node from an
-** outer query into an inner subquery.
-**
-** incrAggFunctionDepth(pExpr,n) is the main routine.  incrAggDepth(..)
-** is a helper function - a callback for the tree walker.
-*/
-static int incrAggDepth(Walker *pWalker, Expr *pExpr){
-  if( pExpr->op==TK_AGG_FUNCTION ) pExpr->op2 += pWalker->u.n;
-  return WRC_Continue;
-}
-static void incrAggFunctionDepth(Expr *pExpr, int N){
-  if( N>0 ){
-    Walker w;
-    memset(&w, 0, sizeof(w));
-    w.xExprCallback = incrAggDepth;
-    w.u.n = N;
-    tdsqlite3WalkExpr(&w, pExpr);
-  }
-}
-
-/*
-** Turn the pExpr expression into an alias for the iCol-th column of the
-** result set in pEList.
-**
-** If the reference is followed by a COLLATE operator, then make sure
-** the COLLATE operator is preserved.  For example:
-**
-**     SELECT a+b, c+d FROM t1 ORDER BY 1 COLLATE nocase;
-**
-** Should be transformed into:
-**
-**     SELECT a+b, c+d FROM t1 ORDER BY (a+b) COLLATE nocase;
-**
-** The nSubquery parameter specifies how many levels of subquery the
-** alias is removed from the original expression.  The usual value is
-** zero but it might be more if the alias is contained within a subquery
-** of the original expression.  The Expr.op2 field of TK_AGG_FUNCTION
-** structures must be increased by the nSubquery amount.
-*/
-static void resolveAlias(
-  Parse *pParse,         /* Parsing context */
-  ExprList *pEList,      /* A result set */
-  int iCol,              /* A column in the result set.  0..pEList->nExpr-1 */
-  Expr *pExpr,           /* Transform this into an alias to the result set */
-  const char *zType,     /* "GROUP" or "ORDER" or "" */
-  int nSubquery          /* Number of subqueries that the label is moving */
-){
-  Expr *pOrig;           /* The iCol-th column of the result set */
-  Expr *pDup;            /* Copy of pOrig */
-  tdsqlite3 *db;           /* The database connection */
-
-  assert( iCol>=0 && iCol<pEList->nExpr );
-  pOrig = pEList->a[iCol].pExpr;
-  assert( pOrig!=0 );
-  db = pParse->db;
-  pDup = tdsqlite3ExprDup(db, pOrig, 0);
-  if( pDup!=0 ){
-    if( zType[0]!='G' ) incrAggFunctionDepth(pDup, nSubquery);
-    if( pExpr->op==TK_COLLATE ){
-      pDup = tdsqlite3ExprAddCollateString(pParse, pDup, pExpr->u.zToken);
-    }
-
-    /* Before calling tdsqlite3ExprDelete(), set the EP_Static flag. This 
-    ** prevents ExprDelete() from deleting the Expr structure itself,
-    ** allowing it to be repopulated by the memcpy() on the following line.
-    ** The pExpr->u.zToken might point into memory that will be freed by the
-    ** tdsqlite3DbFree(db, pDup) on the last line of this block, so be sure to
-    ** make a copy of the token before doing the tdsqlite3DbFree().
-    */
-    ExprSetProperty(pExpr, EP_Static);
-    tdsqlite3ExprDelete(db, pExpr);
-    memcpy(pExpr, pDup, sizeof(*pExpr));
-    if( !ExprHasProperty(pExpr, EP_IntValue) && pExpr->u.zToken!=0 ){
-      assert( (pExpr->flags & (EP_Reduced|EP_TokenOnly))==0 );
-      pExpr->u.zToken = tdsqlite3DbStrDup(db, pExpr->u.zToken);
-      pExpr->flags |= EP_MemToken;
-    }
-    if( ExprHasProperty(pExpr, EP_WinFunc) ){
-      if( pExpr->y.pWin!=0 ){
-        pExpr->y.pWin->pOwner = pExpr;
-      }else{
-        assert( db->mallocFailed );
-      }
-    }
-    tdsqlite3DbFree(db, pDup);
-  }
-  ExprSetProperty(pExpr, EP_Alias);
-}
-
-
-/*
-** Return TRUE if the name zCol occurs anywhere in the USING clause.
-**
-** Return FALSE if the USING clause is NULL or if it does not contain
-** zCol.
-*/
-static int nameInUsingClause(IdList *pUsing, const char *zCol){
-  if( pUsing ){
-    int k;
-    for(k=0; k<pUsing->nId; k++){
-      if( tdsqlite3StrICmp(pUsing->a[k].zName, zCol)==0 ) return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** Subqueries stores the original database, table and column names for their
-** result sets in ExprList.a[].zSpan, in the form "DATABASE.TABLE.COLUMN".
-** Check to see if the zSpan given to this routine matches the zDb, zTab,
-** and zCol.  If any of zDb, zTab, and zCol are NULL then those fields will
-** match anything.
-*/
-SQLITE_PRIVATE int tdsqlite3MatchEName(
-  const struct ExprList_item *pItem,
-  const char *zCol,
-  const char *zTab,
-  const char *zDb
-){
-  int n;
-  const char *zSpan;
-  if( NEVER(pItem->eEName!=ENAME_TAB) ) return 0;
-  zSpan = pItem->zEName;
-  for(n=0; ALWAYS(zSpan[n]) && zSpan[n]!='.'; n++){}
-  if( zDb && (tdsqlite3StrNICmp(zSpan, zDb, n)!=0 || zDb[n]!=0) ){
-    return 0;
-  }
-  zSpan += n+1;
-  for(n=0; ALWAYS(zSpan[n]) && zSpan[n]!='.'; n++){}
-  if( zTab && (tdsqlite3StrNICmp(zSpan, zTab, n)!=0 || zTab[n]!=0) ){
-    return 0;
-  }
-  zSpan += n+1;
-  if( zCol && tdsqlite3StrICmp(zSpan, zCol)!=0 ){
-    return 0;
-  }
-  return 1;
-}
-
-/*
-** Return TRUE if the double-quoted string  mis-feature should be supported.
-*/
-static int areDoubleQuotedStringsEnabled(tdsqlite3 *db, NameContext *pTopNC){
-  if( db->init.busy ) return 1;  /* Always support for legacy schemas */
-  if( pTopNC->ncFlags & NC_IsDDL ){
-    /* Currently parsing a DDL statement */
-    if( tdsqlite3WritableSchema(db) && (db->flags & SQLITE_DqsDML)!=0 ){
-      return 1;
-    }
-    return (db->flags & SQLITE_DqsDDL)!=0;
-  }else{
-    /* Currently parsing a DML statement */
-    return (db->flags & SQLITE_DqsDML)!=0;
-  }
-}
-
-/*
-** Given the name of a column of the form X.Y.Z or Y.Z or just Z, look up
-** that name in the set of source tables in pSrcList and make the pExpr 
-** expression node refer back to that source column.  The following changes
-** are made to pExpr:
-**
-**    pExpr->iDb           Set the index in db->aDb[] of the database X
-**                         (even if X is implied).
-**    pExpr->iTable        Set to the cursor number for the table obtained
-**                         from pSrcList.
-**    pExpr->y.pTab        Points to the Table structure of X.Y (even if
-**                         X and/or Y are implied.)
-**    pExpr->iColumn       Set to the column number within the table.
-**    pExpr->op            Set to TK_COLUMN.
-**    pExpr->pLeft         Any expression this points to is deleted
-**    pExpr->pRight        Any expression this points to is deleted.
-**
-** The zDb variable is the name of the database (the "X").  This value may be
-** NULL meaning that name is of the form Y.Z or Z.  Any available database
-** can be used.  The zTable variable is the name of the table (the "Y").  This
-** value can be NULL if zDb is also NULL.  If zTable is NULL it
-** means that the form of the name is Z and that columns from any table
-** can be used.
-**
-** If the name cannot be resolved unambiguously, leave an error message
-** in pParse and return WRC_Abort.  Return WRC_Prune on success.
-*/
-static int lookupName(
-  Parse *pParse,       /* The parsing context */
-  const char *zDb,     /* Name of the database containing table, or NULL */
-  const char *zTab,    /* Name of table containing column, or NULL */
-  const char *zCol,    /* Name of the column. */
-  NameContext *pNC,    /* The name context used to resolve the name */
-  Expr *pExpr          /* Make this EXPR node point to the selected column */
-){
-  int i, j;                         /* Loop counters */
-  int cnt = 0;                      /* Number of matching column names */
-  int cntTab = 0;                   /* Number of matching table names */
-  int nSubquery = 0;                /* How many levels of subquery */
-  tdsqlite3 *db = pParse->db;         /* The database connection */
-  struct SrcList_item *pItem;       /* Use for looping over pSrcList items */
-  struct SrcList_item *pMatch = 0;  /* The matching pSrcList item */
-  NameContext *pTopNC = pNC;        /* First namecontext in the list */
-  Schema *pSchema = 0;              /* Schema of the expression */
-  int eNewExprOp = TK_COLUMN;       /* New value for pExpr->op on success */
-  Table *pTab = 0;                  /* Table hold the row */
-  Column *pCol;                     /* A column of pTab */
-
-  assert( pNC );     /* the name context cannot be NULL. */
-  assert( zCol );    /* The Z in X.Y.Z cannot be NULL */
-  assert( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) );
-
-  /* Initialize the node to no-match */
-  pExpr->iTable = -1;
-  ExprSetVVAProperty(pExpr, EP_NoReduce);
-
-  /* Translate the schema name in zDb into a pointer to the corresponding
-  ** schema.  If not found, pSchema will remain NULL and nothing will match
-  ** resulting in an appropriate error message toward the end of this routine
-  */
-  if( zDb ){
-    testcase( pNC->ncFlags & NC_PartIdx );
-    testcase( pNC->ncFlags & NC_IsCheck );
-    if( (pNC->ncFlags & (NC_PartIdx|NC_IsCheck))!=0 ){
-      /* Silently ignore database qualifiers inside CHECK constraints and
-      ** partial indices.  Do not raise errors because that might break
-      ** legacy and because it does not hurt anything to just ignore the
-      ** database name. */
-      zDb = 0;
-    }else{
-      for(i=0; i<db->nDb; i++){
-        assert( db->aDb[i].zDbSName );
-        if( tdsqlite3StrICmp(db->aDb[i].zDbSName,zDb)==0 ){
-          pSchema = db->aDb[i].pSchema;
-          break;
-        }
-      }
-    }
-  }
-
-  /* Start at the inner-most context and move outward until a match is found */
-  assert( pNC && cnt==0 );
-  do{
-    ExprList *pEList;
-    SrcList *pSrcList = pNC->pSrcList;
-
-    if( pSrcList ){
-      for(i=0, pItem=pSrcList->a; i<pSrcList->nSrc; i++, pItem++){
-        pTab = pItem->pTab;
-        assert( pTab!=0 && pTab->zName!=0 );
-        assert( pTab->nCol>0 );
-        if( pItem->pSelect && (pItem->pSelect->selFlags & SF_NestedFrom)!=0 ){
-          int hit = 0;
-          pEList = pItem->pSelect->pEList;
-          for(j=0; j<pEList->nExpr; j++){
-            if( tdsqlite3MatchEName(&pEList->a[j], zCol, zTab, zDb) ){
-              cnt++;
-              cntTab = 2;
-              pMatch = pItem;
-              pExpr->iColumn = j;
-              hit = 1;
-            }
-          }
-          if( hit || zTab==0 ) continue;
-        }
-        if( zDb && pTab->pSchema!=pSchema ){
-          continue;
-        }
-        if( zTab ){
-          const char *zTabName = pItem->zAlias ? pItem->zAlias : pTab->zName;
-          assert( zTabName!=0 );
-          if( tdsqlite3StrICmp(zTabName, zTab)!=0 ){
-            continue;
-          }
-          if( IN_RENAME_OBJECT && pItem->zAlias ){
-            tdsqlite3RenameTokenRemap(pParse, 0, (void*)&pExpr->y.pTab);
-          }
-        }
-        if( 0==(cntTab++) ){
-          pMatch = pItem;
-        }
-        for(j=0, pCol=pTab->aCol; j<pTab->nCol; j++, pCol++){
-          if( tdsqlite3StrICmp(pCol->zName, zCol)==0 ){
-            /* If there has been exactly one prior match and this match
-            ** is for the right-hand table of a NATURAL JOIN or is in a 
-            ** USING clause, then skip this match.
-            */
-            if( cnt==1 ){
-              if( pItem->fg.jointype & JT_NATURAL ) continue;
-              if( nameInUsingClause(pItem->pUsing, zCol) ) continue;
-            }
-            cnt++;
-            pMatch = pItem;
-            /* Substitute the rowid (column -1) for the INTEGER PRIMARY KEY */
-            pExpr->iColumn = j==pTab->iPKey ? -1 : (i16)j;
-            break;
-          }
-        }
-      }
-      if( pMatch ){
-        pExpr->iTable = pMatch->iCursor;
-        pExpr->y.pTab = pMatch->pTab;
-        /* RIGHT JOIN not (yet) supported */
-        assert( (pMatch->fg.jointype & JT_RIGHT)==0 );
-        if( (pMatch->fg.jointype & JT_LEFT)!=0 ){
-          ExprSetProperty(pExpr, EP_CanBeNull);
-        }
-        pSchema = pExpr->y.pTab->pSchema;
-      }
-    } /* if( pSrcList ) */
-
-#if !defined(SQLITE_OMIT_TRIGGER) || !defined(SQLITE_OMIT_UPSERT)
-    /* If we have not already resolved the name, then maybe 
-    ** it is a new.* or old.* trigger argument reference.  Or
-    ** maybe it is an excluded.* from an upsert.
-    */
-    if( zDb==0 && zTab!=0 && cntTab==0 ){
-      pTab = 0;
-#ifndef SQLITE_OMIT_TRIGGER
-      if( pParse->pTriggerTab!=0 ){
-        int op = pParse->eTriggerOp;
-        assert( op==TK_DELETE || op==TK_UPDATE || op==TK_INSERT );
-        if( op!=TK_DELETE && tdsqlite3StrICmp("new",zTab) == 0 ){
-          pExpr->iTable = 1;
-          pTab = pParse->pTriggerTab;
-        }else if( op!=TK_INSERT && tdsqlite3StrICmp("old",zTab)==0 ){
-          pExpr->iTable = 0;
-          pTab = pParse->pTriggerTab;
-        }
-      }
-#endif /* SQLITE_OMIT_TRIGGER */
-#ifndef SQLITE_OMIT_UPSERT
-      if( (pNC->ncFlags & NC_UUpsert)!=0 ){
-        Upsert *pUpsert = pNC->uNC.pUpsert;
-        if( pUpsert && tdsqlite3StrICmp("excluded",zTab)==0 ){
-          pTab = pUpsert->pUpsertSrc->a[0].pTab;
-          pExpr->iTable = 2;
-        }
-      }
-#endif /* SQLITE_OMIT_UPSERT */
-
-      if( pTab ){ 
-        int iCol;
-        pSchema = pTab->pSchema;
-        cntTab++;
-        for(iCol=0, pCol=pTab->aCol; iCol<pTab->nCol; iCol++, pCol++){
-          if( tdsqlite3StrICmp(pCol->zName, zCol)==0 ){
-            if( iCol==pTab->iPKey ){
-              iCol = -1;
-            }
-            break;
-          }
-        }
-        if( iCol>=pTab->nCol && tdsqlite3IsRowid(zCol) && VisibleRowid(pTab) ){
-          /* IMP: R-51414-32910 */
-          iCol = -1;
-        }
-        if( iCol<pTab->nCol ){
-          cnt++;
-#ifndef SQLITE_OMIT_UPSERT
-          if( pExpr->iTable==2 ){
-            testcase( iCol==(-1) );
-            if( IN_RENAME_OBJECT ){
-              pExpr->iColumn = iCol;
-              pExpr->y.pTab = pTab;
-              eNewExprOp = TK_COLUMN;
-            }else{
-              pExpr->iTable = pNC->uNC.pUpsert->regData + iCol;
-              eNewExprOp = TK_REGISTER;
-              ExprSetProperty(pExpr, EP_Alias);
-            }
-          }else
-#endif /* SQLITE_OMIT_UPSERT */
-          {
-#ifndef SQLITE_OMIT_TRIGGER
-            if( iCol<0 ){
-              pExpr->affExpr = SQLITE_AFF_INTEGER;
-            }else if( pExpr->iTable==0 ){
-              testcase( iCol==31 );
-              testcase( iCol==32 );
-              pParse->oldmask |= (iCol>=32 ? 0xffffffff : (((u32)1)<<iCol));
-            }else{
-              testcase( iCol==31 );
-              testcase( iCol==32 );
-              pParse->newmask |= (iCol>=32 ? 0xffffffff : (((u32)1)<<iCol));
-            }
-            pExpr->y.pTab = pTab;
-            pExpr->iColumn = (i16)iCol;
-            eNewExprOp = TK_TRIGGER;
-#endif /* SQLITE_OMIT_TRIGGER */
-          }
-        }
-      }
-    }
-#endif /* !defined(SQLITE_OMIT_TRIGGER) || !defined(SQLITE_OMIT_UPSERT) */
-
-    /*
-    ** Perhaps the name is a reference to the ROWID
-    */
-    if( cnt==0
-     && cntTab==1
-     && pMatch
-     && (pNC->ncFlags & (NC_IdxExpr|NC_GenCol))==0
-     && tdsqlite3IsRowid(zCol)
-     && VisibleRowid(pMatch->pTab)
-    ){
-      cnt = 1;
-      pExpr->iColumn = -1;
-      pExpr->affExpr = SQLITE_AFF_INTEGER;
-    }
-
-    /*
-    ** If the input is of the form Z (not Y.Z or X.Y.Z) then the name Z
-    ** might refer to an result-set alias.  This happens, for example, when
-    ** we are resolving names in the WHERE clause of the following command:
-    **
-    **     SELECT a+b AS x FROM table WHERE x<10;
-    **
-    ** In cases like this, replace pExpr with a copy of the expression that
-    ** forms the result set entry ("a+b" in the example) and return immediately.
-    ** Note that the expression in the result set should have already been
-    ** resolved by the time the WHERE clause is resolved.
-    **
-    ** The ability to use an output result-set column in the WHERE, GROUP BY,
-    ** or HAVING clauses, or as part of a larger expression in the ORDER BY
-    ** clause is not standard SQL.  This is a (goofy) SQLite extension, that
-    ** is supported for backwards compatibility only. Hence, we issue a warning
-    ** on tdsqlite3_log() whenever the capability is used.
-    */
-    if( (pNC->ncFlags & NC_UEList)!=0
-     && cnt==0
-     && zTab==0
-    ){
-      pEList = pNC->uNC.pEList;
-      assert( pEList!=0 );
-      for(j=0; j<pEList->nExpr; j++){
-        char *zAs = pEList->a[j].zEName;
-        if( pEList->a[j].eEName==ENAME_NAME
-         && tdsqlite3_stricmp(zAs, zCol)==0
-        ){
-          Expr *pOrig;
-          assert( pExpr->pLeft==0 && pExpr->pRight==0 );
-          assert( pExpr->x.pList==0 );
-          assert( pExpr->x.pSelect==0 );
-          pOrig = pEList->a[j].pExpr;
-          if( (pNC->ncFlags&NC_AllowAgg)==0 && ExprHasProperty(pOrig, EP_Agg) ){
-            tdsqlite3ErrorMsg(pParse, "misuse of aliased aggregate %s", zAs);
-            return WRC_Abort;
-          }
-          if( ExprHasProperty(pOrig, EP_Win)
-           && ((pNC->ncFlags&NC_AllowWin)==0 || pNC!=pTopNC )
-          ){
-            tdsqlite3ErrorMsg(pParse, "misuse of aliased window function %s",zAs);
-            return WRC_Abort;
-          }
-          if( tdsqlite3ExprVectorSize(pOrig)!=1 ){
-            tdsqlite3ErrorMsg(pParse, "row value misused");
-            return WRC_Abort;
-          }
-          resolveAlias(pParse, pEList, j, pExpr, "", nSubquery);
-          cnt = 1;
-          pMatch = 0;
-          assert( zTab==0 && zDb==0 );
-          if( IN_RENAME_OBJECT ){
-            tdsqlite3RenameTokenRemap(pParse, 0, (void*)pExpr);
-          }
-          goto lookupname_end;
-        }
-      } 
-    }
-
-    /* Advance to the next name context.  The loop will exit when either
-    ** we have a match (cnt>0) or when we run out of name contexts.
-    */
-    if( cnt ) break;
-    pNC = pNC->pNext;
-    nSubquery++;
-  }while( pNC );
-
-
-  /*
-  ** If X and Y are NULL (in other words if only the column name Z is
-  ** supplied) and the value of Z is enclosed in double-quotes, then
-  ** Z is a string literal if it doesn't match any column names.  In that
-  ** case, we need to return right away and not make any changes to
-  ** pExpr.
-  **
-  ** Because no reference was made to outer contexts, the pNC->nRef
-  ** fields are not changed in any context.
-  */
-  if( cnt==0 && zTab==0 ){
-    assert( pExpr->op==TK_ID );
-    if( ExprHasProperty(pExpr,EP_DblQuoted)
-     && areDoubleQuotedStringsEnabled(db, pTopNC)
-    ){
-      /* If a double-quoted identifier does not match any known column name,
-      ** then treat it as a string.
-      **
-      ** This hack was added in the early days of SQLite in a misguided attempt
-      ** to be compatible with MySQL 3.x, which used double-quotes for strings.
-      ** I now sorely regret putting in this hack. The effect of this hack is
-      ** that misspelled identifier names are silently converted into strings
-      ** rather than causing an error, to the frustration of countless
-      ** programmers. To all those frustrated programmers, my apologies.
-      **
-      ** Someday, I hope to get rid of this hack. Unfortunately there is
-      ** a huge amount of legacy SQL that uses it. So for now, we just
-      ** issue a warning.
-      */
-      tdsqlite3_log(SQLITE_WARNING,
-        "double-quoted string literal: \"%w\"", zCol);
-#ifdef SQLITE_ENABLE_NORMALIZE
-      tdsqlite3VdbeAddDblquoteStr(db, pParse->pVdbe, zCol);
-#endif
-      pExpr->op = TK_STRING;
-      pExpr->y.pTab = 0;
-      return WRC_Prune;
-    }
-    if( tdsqlite3ExprIdToTrueFalse(pExpr) ){
-      return WRC_Prune;
-    }
-  }
-
-  /*
-  ** cnt==0 means there was not match.  cnt>1 means there were two or
-  ** more matches.  Either way, we have an error.
-  */
-  if( cnt!=1 ){
-    const char *zErr;
-    zErr = cnt==0 ? "no such column" : "ambiguous column name";
-    if( zDb ){
-      tdsqlite3ErrorMsg(pParse, "%s: %s.%s.%s", zErr, zDb, zTab, zCol);
-    }else if( zTab ){
-      tdsqlite3ErrorMsg(pParse, "%s: %s.%s", zErr, zTab, zCol);
-    }else{
-      tdsqlite3ErrorMsg(pParse, "%s: %s", zErr, zCol);
-    }
-    pParse->checkSchema = 1;
-    pTopNC->nErr++;
-  }
-
-  /* If a column from a table in pSrcList is referenced, then record
-  ** this fact in the pSrcList.a[].colUsed bitmask.  Column 0 causes
-  ** bit 0 to be set.  Column 1 sets bit 1.  And so forth.  Bit 63 is
-  ** set if the 63rd or any subsequent column is used.
-  **
-  ** The colUsed mask is an optimization used to help determine if an
-  ** index is a covering index.  The correct answer is still obtained
-  ** if the mask contains extra set bits.  However, it is important to
-  ** avoid setting bits beyond the maximum column number of the table.
-  ** (See ticket [b92e5e8ec2cdbaa1]).
-  **
-  ** If a generated column is referenced, set bits for every column
-  ** of the table.
-  */
-  if( pExpr->iColumn>=0 && pMatch!=0 ){
-    int n = pExpr->iColumn;
-    Table *pExTab = pExpr->y.pTab;
-    assert( pExTab!=0 );
-    assert( pMatch->iCursor==pExpr->iTable );
-    if( (pExTab->tabFlags & TF_HasGenerated)!=0
-     && (pExTab->aCol[n].colFlags & COLFLAG_GENERATED)!=0 
-    ){
-      testcase( pExTab->nCol==BMS-1 );
-      testcase( pExTab->nCol==BMS );
-      pMatch->colUsed = pExTab->nCol>=BMS ? ALLBITS : MASKBIT(pExTab->nCol)-1;
-    }else{
-      testcase( n==BMS-1 );
-      testcase( n==BMS );
-      if( n>=BMS ) n = BMS-1;
-      pMatch->colUsed |= ((Bitmask)1)<<n;
-    }
-  }
-
-  /* Clean up and return
-  */
-  tdsqlite3ExprDelete(db, pExpr->pLeft);
-  pExpr->pLeft = 0;
-  tdsqlite3ExprDelete(db, pExpr->pRight);
-  pExpr->pRight = 0;
-  pExpr->op = eNewExprOp;
-  ExprSetProperty(pExpr, EP_Leaf);
-lookupname_end:
-  if( cnt==1 ){
-    assert( pNC!=0 );
-    if( !ExprHasProperty(pExpr, EP_Alias) ){
-      tdsqlite3AuthRead(pParse, pExpr, pSchema, pNC->pSrcList);
-    }
-    /* Increment the nRef value on all name contexts from TopNC up to
-    ** the point where the name matched. */
-    for(;;){
-      assert( pTopNC!=0 );
-      pTopNC->nRef++;
-      if( pTopNC==pNC ) break;
-      pTopNC = pTopNC->pNext;
-    }
-    return WRC_Prune;
-  } else {
-    return WRC_Abort;
-  }
-}
-
-/*
-** Allocate and return a pointer to an expression to load the column iCol
-** from datasource iSrc in SrcList pSrc.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3CreateColumnExpr(tdsqlite3 *db, SrcList *pSrc, int iSrc, int iCol){
-  Expr *p = tdsqlite3ExprAlloc(db, TK_COLUMN, 0, 0);
-  if( p ){
-    struct SrcList_item *pItem = &pSrc->a[iSrc];
-    Table *pTab = p->y.pTab = pItem->pTab;
-    p->iTable = pItem->iCursor;
-    if( p->y.pTab->iPKey==iCol ){
-      p->iColumn = -1;
-    }else{
-      p->iColumn = (ynVar)iCol;
-      if( (pTab->tabFlags & TF_HasGenerated)!=0
-       && (pTab->aCol[iCol].colFlags & COLFLAG_GENERATED)!=0
-      ){
-        testcase( pTab->nCol==63 );
-        testcase( pTab->nCol==64 );
-        pItem->colUsed = pTab->nCol>=64 ? ALLBITS : MASKBIT(pTab->nCol)-1;
-      }else{
-        testcase( iCol==BMS );
-        testcase( iCol==BMS-1 );
-        pItem->colUsed |= ((Bitmask)1)<<(iCol>=BMS ? BMS-1 : iCol);
-      }
-    }
-  }
-  return p;
-}
-
-/*
-** Report an error that an expression is not valid for some set of
-** pNC->ncFlags values determined by validMask.
-**
-** static void notValid(
-**   Parse *pParse,       // Leave error message here
-**   NameContext *pNC,    // The name context 
-**   const char *zMsg,    // Type of error
-**   int validMask,       // Set of contexts for which prohibited
-**   Expr *pExpr          // Invalidate this expression on error
-** ){...}
-**
-** As an optimization, since the conditional is almost always false
-** (because errors are rare), the conditional is moved outside of the
-** function call using a macro.
-*/
-static void notValidImpl(
-   Parse *pParse,       /* Leave error message here */
-   NameContext *pNC,    /* The name context */
-   const char *zMsg,    /* Type of error */
-   Expr *pExpr          /* Invalidate this expression on error */
-){
-  const char *zIn = "partial index WHERE clauses";
-  if( pNC->ncFlags & NC_IdxExpr )      zIn = "index expressions";
-#ifndef SQLITE_OMIT_CHECK
-  else if( pNC->ncFlags & NC_IsCheck ) zIn = "CHECK constraints";
-#endif
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-  else if( pNC->ncFlags & NC_GenCol ) zIn = "generated columns";
-#endif
-  tdsqlite3ErrorMsg(pParse, "%s prohibited in %s", zMsg, zIn);
-  if( pExpr ) pExpr->op = TK_NULL;
-}
-#define tdsqlite3ResolveNotValid(P,N,M,X,E) \
-  assert( ((X)&~(NC_IsCheck|NC_PartIdx|NC_IdxExpr|NC_GenCol))==0 ); \
-  if( ((N)->ncFlags & (X))!=0 ) notValidImpl(P,N,M,E);
-
-/*
-** Expression p should encode a floating point value between 1.0 and 0.0.
-** Return 1024 times this value.  Or return -1 if p is not a floating point
-** value between 1.0 and 0.0.
-*/
-static int exprProbability(Expr *p){
-  double r = -1.0;
-  if( p->op!=TK_FLOAT ) return -1;
-  tdsqlite3AtoF(p->u.zToken, &r, tdsqlite3Strlen30(p->u.zToken), SQLITE_UTF8);
-  assert( r>=0.0 );
-  if( r>1.0 ) return -1;
-  return (int)(r*134217728.0);
-}
-
-/*
-** This routine is callback for tdsqlite3WalkExpr().
-**
-** Resolve symbolic names into TK_COLUMN operators for the current
-** node in the expression tree.  Return 0 to continue the search down
-** the tree or 2 to abort the tree walk.
-**
-** This routine also does error checking and name resolution for
-** function names.  The operator for aggregate functions is changed
-** to TK_AGG_FUNCTION.
-*/
-static int resolveExprStep(Walker *pWalker, Expr *pExpr){
-  NameContext *pNC;
-  Parse *pParse;
-
-  pNC = pWalker->u.pNC;
-  assert( pNC!=0 );
-  pParse = pNC->pParse;
-  assert( pParse==pWalker->pParse );
-
-#ifndef NDEBUG
-  if( pNC->pSrcList && pNC->pSrcList->nAlloc>0 ){
-    SrcList *pSrcList = pNC->pSrcList;
-    int i;
-    for(i=0; i<pNC->pSrcList->nSrc; i++){
-      assert( pSrcList->a[i].iCursor>=0 && pSrcList->a[i].iCursor<pParse->nTab);
-    }
-  }
-#endif
-  switch( pExpr->op ){
-
-#if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY)
-    /* The special operator TK_ROW means use the rowid for the first
-    ** column in the FROM clause.  This is used by the LIMIT and ORDER BY
-    ** clause processing on UPDATE and DELETE statements.
-    */
-    case TK_ROW: {
-      SrcList *pSrcList = pNC->pSrcList;
-      struct SrcList_item *pItem;
-      assert( pSrcList && pSrcList->nSrc==1 );
-      pItem = pSrcList->a;
-      assert( HasRowid(pItem->pTab) && pItem->pTab->pSelect==0 );
-      pExpr->op = TK_COLUMN;
-      pExpr->y.pTab = pItem->pTab;
-      pExpr->iTable = pItem->iCursor;
-      pExpr->iColumn = -1;
-      pExpr->affExpr = SQLITE_AFF_INTEGER;
-      break;
-    }
-#endif /* defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT)
-          && !defined(SQLITE_OMIT_SUBQUERY) */
-
-    /* A column name:                    ID
-    ** Or table name and column name:    ID.ID
-    ** Or a database, table and column:  ID.ID.ID
-    **
-    ** The TK_ID and TK_OUT cases are combined so that there will only
-    ** be one call to lookupName().  Then the compiler will in-line 
-    ** lookupName() for a size reduction and performance increase.
-    */
-    case TK_ID:
-    case TK_DOT: {
-      const char *zColumn;
-      const char *zTable;
-      const char *zDb;
-      Expr *pRight;
-
-      if( pExpr->op==TK_ID ){
-        zDb = 0;
-        zTable = 0;
-        zColumn = pExpr->u.zToken;
-      }else{
-        Expr *pLeft = pExpr->pLeft;
-        testcase( pNC->ncFlags & NC_IdxExpr );
-        testcase( pNC->ncFlags & NC_GenCol );
-        tdsqlite3ResolveNotValid(pParse, pNC, "the \".\" operator",
-                               NC_IdxExpr|NC_GenCol, 0);
-        pRight = pExpr->pRight;
-        if( pRight->op==TK_ID ){
-          zDb = 0;
-        }else{
-          assert( pRight->op==TK_DOT );
-          zDb = pLeft->u.zToken;
-          pLeft = pRight->pLeft;
-          pRight = pRight->pRight;
-        }
-        zTable = pLeft->u.zToken;
-        zColumn = pRight->u.zToken;
-        if( IN_RENAME_OBJECT ){
-          tdsqlite3RenameTokenRemap(pParse, (void*)pExpr, (void*)pRight);
-          tdsqlite3RenameTokenRemap(pParse, (void*)&pExpr->y.pTab, (void*)pLeft);
-        }
-      }
-      return lookupName(pParse, zDb, zTable, zColumn, pNC, pExpr);
-    }
-
-    /* Resolve function names
-    */
-    case TK_FUNCTION: {
-      ExprList *pList = pExpr->x.pList;    /* The argument list */
-      int n = pList ? pList->nExpr : 0;    /* Number of arguments */
-      int no_such_func = 0;       /* True if no such function exists */
-      int wrong_num_args = 0;     /* True if wrong number of arguments */
-      int is_agg = 0;             /* True if is an aggregate function */
-      int nId;                    /* Number of characters in function name */
-      const char *zId;            /* The function name. */
-      FuncDef *pDef;              /* Information about the function */
-      u8 enc = ENC(pParse->db);   /* The database encoding */
-      int savedAllowFlags = (pNC->ncFlags & (NC_AllowAgg | NC_AllowWin));
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      Window *pWin = (IsWindowFunc(pExpr) ? pExpr->y.pWin : 0);
-#endif
-      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-      zId = pExpr->u.zToken;
-      nId = tdsqlite3Strlen30(zId);
-      pDef = tdsqlite3FindFunction(pParse->db, zId, n, enc, 0);
-      if( pDef==0 ){
-        pDef = tdsqlite3FindFunction(pParse->db, zId, -2, enc, 0);
-        if( pDef==0 ){
-          no_such_func = 1;
-        }else{
-          wrong_num_args = 1;
-        }
-      }else{
-        is_agg = pDef->xFinalize!=0;
-        if( pDef->funcFlags & SQLITE_FUNC_UNLIKELY ){
-          ExprSetProperty(pExpr, EP_Unlikely);
-          if( n==2 ){
-            pExpr->iTable = exprProbability(pList->a[1].pExpr);
-            if( pExpr->iTable<0 ){
-              tdsqlite3ErrorMsg(pParse,
-                "second argument to likelihood() must be a "
-                "constant between 0.0 and 1.0");
-              pNC->nErr++;
-            }
-          }else{
-            /* EVIDENCE-OF: R-61304-29449 The unlikely(X) function is
-            ** equivalent to likelihood(X, 0.0625).
-            ** EVIDENCE-OF: R-01283-11636 The unlikely(X) function is
-            ** short-hand for likelihood(X,0.0625).
-            ** EVIDENCE-OF: R-36850-34127 The likely(X) function is short-hand
-            ** for likelihood(X,0.9375).
-            ** EVIDENCE-OF: R-53436-40973 The likely(X) function is equivalent
-            ** to likelihood(X,0.9375). */
-            /* TUNING: unlikely() probability is 0.0625.  likely() is 0.9375 */
-            pExpr->iTable = pDef->zName[0]=='u' ? 8388608 : 125829120;
-          }             
-        }
-#ifndef SQLITE_OMIT_AUTHORIZATION
-        {
-          int auth = tdsqlite3AuthCheck(pParse, SQLITE_FUNCTION, 0,pDef->zName,0);
-          if( auth!=SQLITE_OK ){
-            if( auth==SQLITE_DENY ){
-              tdsqlite3ErrorMsg(pParse, "not authorized to use function: %s",
-                                      pDef->zName);
-              pNC->nErr++;
-            }
-            pExpr->op = TK_NULL;
-            return WRC_Prune;
-          }
-        }
-#endif
-        if( pDef->funcFlags & (SQLITE_FUNC_CONSTANT|SQLITE_FUNC_SLOCHNG) ){
-          /* For the purposes of the EP_ConstFunc flag, date and time
-          ** functions and other functions that change slowly are considered
-          ** constant because they are constant for the duration of one query.
-          ** This allows them to be factored out of inner loops. */
-          ExprSetProperty(pExpr,EP_ConstFunc);
-        }
-        if( (pDef->funcFlags & SQLITE_FUNC_CONSTANT)==0 ){
-          /* Clearly non-deterministic functions like random(), but also
-          ** date/time functions that use 'now', and other functions like
-          ** sqlite_version() that might change over time cannot be used
-          ** in an index or generated column.  Curiously, they can be used
-          ** in a CHECK constraint.  SQLServer, MySQL, and PostgreSQL all
-          ** all this. */
-          tdsqlite3ResolveNotValid(pParse, pNC, "non-deterministic functions",
-                                 NC_IdxExpr|NC_PartIdx|NC_GenCol, 0);
-        }else{
-          assert( (NC_SelfRef & 0xff)==NC_SelfRef ); /* Must fit in 8 bits */
-          pExpr->op2 = pNC->ncFlags & NC_SelfRef;
-          if( pNC->ncFlags & NC_FromDDL ) ExprSetProperty(pExpr, EP_FromDDL);
-        }
-        if( (pDef->funcFlags & SQLITE_FUNC_INTERNAL)!=0
-         && pParse->nested==0
-         && (pParse->db->mDbFlags & DBFLAG_InternalFunc)==0
-        ){
-          /* Internal-use-only functions are disallowed unless the
-          ** SQL is being compiled using tdsqlite3NestedParse() or
-          ** the SQLITE_TESTCTRL_INTERNAL_FUNCTIONS test-control has be
-          ** used to activate internal functionsn for testing purposes */
-          no_such_func = 1;
-          pDef = 0;
-        }else
-        if( (pDef->funcFlags & (SQLITE_FUNC_DIRECT|SQLITE_FUNC_UNSAFE))!=0
-         && !IN_RENAME_OBJECT
-        ){
-          tdsqlite3ExprFunctionUsable(pParse, pExpr, pDef);
-        }
-      }
-
-      if( 0==IN_RENAME_OBJECT ){
-#ifndef SQLITE_OMIT_WINDOWFUNC
-        assert( is_agg==0 || (pDef->funcFlags & SQLITE_FUNC_MINMAX)
-          || (pDef->xValue==0 && pDef->xInverse==0)
-          || (pDef->xValue && pDef->xInverse && pDef->xSFunc && pDef->xFinalize)
-        );
-        if( pDef && pDef->xValue==0 && pWin ){
-          tdsqlite3ErrorMsg(pParse, 
-              "%.*s() may not be used as a window function", nId, zId
-          );
-          pNC->nErr++;
-        }else if( 
-              (is_agg && (pNC->ncFlags & NC_AllowAgg)==0)
-           || (is_agg && (pDef->funcFlags&SQLITE_FUNC_WINDOW) && !pWin)
-           || (is_agg && pWin && (pNC->ncFlags & NC_AllowWin)==0)
-        ){
-          const char *zType;
-          if( (pDef->funcFlags & SQLITE_FUNC_WINDOW) || pWin ){
-            zType = "window";
-          }else{
-            zType = "aggregate";
-          }
-          tdsqlite3ErrorMsg(pParse, "misuse of %s function %.*s()",zType,nId,zId);
-          pNC->nErr++;
-          is_agg = 0;
-        }
-#else
-        if( (is_agg && (pNC->ncFlags & NC_AllowAgg)==0) ){
-          tdsqlite3ErrorMsg(pParse,"misuse of aggregate function %.*s()",nId,zId);
-          pNC->nErr++;
-          is_agg = 0;
-        }
-#endif
-        else if( no_such_func && pParse->db->init.busy==0
-#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
-                  && pParse->explain==0
-#endif
-        ){
-          tdsqlite3ErrorMsg(pParse, "no such function: %.*s", nId, zId);
-          pNC->nErr++;
-        }else if( wrong_num_args ){
-          tdsqlite3ErrorMsg(pParse,"wrong number of arguments to function %.*s()",
-               nId, zId);
-          pNC->nErr++;
-        }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-        else if( is_agg==0 && ExprHasProperty(pExpr, EP_WinFunc) ){
-          tdsqlite3ErrorMsg(pParse, 
-              "FILTER may not be used with non-aggregate %.*s()", 
-              nId, zId
-          );
-          pNC->nErr++;
-        }
-#endif
-        if( is_agg ){
-          /* Window functions may not be arguments of aggregate functions.
-          ** Or arguments of other window functions. But aggregate functions
-          ** may be arguments for window functions.  */
-#ifndef SQLITE_OMIT_WINDOWFUNC
-          pNC->ncFlags &= ~(NC_AllowWin | (!pWin ? NC_AllowAgg : 0));
-#else
-          pNC->ncFlags &= ~NC_AllowAgg;
-#endif
-        }
-      }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      else if( ExprHasProperty(pExpr, EP_WinFunc) ){
-        is_agg = 1;
-      }
-#endif
-      tdsqlite3WalkExprList(pWalker, pList);
-      if( is_agg ){
-#ifndef SQLITE_OMIT_WINDOWFUNC
-        if( pWin ){
-          Select *pSel = pNC->pWinSelect;
-          assert( pWin==pExpr->y.pWin );
-          if( IN_RENAME_OBJECT==0 ){
-            tdsqlite3WindowUpdate(pParse, pSel ? pSel->pWinDefn : 0, pWin, pDef);
-          }
-          tdsqlite3WalkExprList(pWalker, pWin->pPartition);
-          tdsqlite3WalkExprList(pWalker, pWin->pOrderBy);
-          tdsqlite3WalkExpr(pWalker, pWin->pFilter);
-          tdsqlite3WindowLink(pSel, pWin);
-          pNC->ncFlags |= NC_HasWin;
-        }else
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-        {
-          NameContext *pNC2 = pNC;
-          pExpr->op = TK_AGG_FUNCTION;
-          pExpr->op2 = 0;
-#ifndef SQLITE_OMIT_WINDOWFUNC
-          if( ExprHasProperty(pExpr, EP_WinFunc) ){
-            tdsqlite3WalkExpr(pWalker, pExpr->y.pWin->pFilter);
-          }
-#endif
-          while( pNC2 && !tdsqlite3FunctionUsesThisSrc(pExpr, pNC2->pSrcList) ){
-            pExpr->op2++;
-            pNC2 = pNC2->pNext;
-          }
-          assert( pDef!=0 || IN_RENAME_OBJECT );
-          if( pNC2 && pDef ){
-            assert( SQLITE_FUNC_MINMAX==NC_MinMaxAgg );
-            testcase( (pDef->funcFlags & SQLITE_FUNC_MINMAX)!=0 );
-            pNC2->ncFlags |= NC_HasAgg | (pDef->funcFlags & SQLITE_FUNC_MINMAX);
-
-          }
-        }
-        pNC->ncFlags |= savedAllowFlags;
-      }
-      /* FIX ME:  Compute pExpr->affinity based on the expected return
-      ** type of the function 
-      */
-      return WRC_Prune;
-    }
-#ifndef SQLITE_OMIT_SUBQUERY
-    case TK_SELECT:
-    case TK_EXISTS:  testcase( pExpr->op==TK_EXISTS );
-#endif
-    case TK_IN: {
-      testcase( pExpr->op==TK_IN );
-      if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-        int nRef = pNC->nRef;
-        testcase( pNC->ncFlags & NC_IsCheck );
-        testcase( pNC->ncFlags & NC_PartIdx );
-        testcase( pNC->ncFlags & NC_IdxExpr );
-        testcase( pNC->ncFlags & NC_GenCol );
-        tdsqlite3ResolveNotValid(pParse, pNC, "subqueries",
-                 NC_IsCheck|NC_PartIdx|NC_IdxExpr|NC_GenCol, pExpr);
-        tdsqlite3WalkSelect(pWalker, pExpr->x.pSelect);
-        assert( pNC->nRef>=nRef );
-        if( nRef!=pNC->nRef ){
-          ExprSetProperty(pExpr, EP_VarSelect);
-          pNC->ncFlags |= NC_VarSelect;
-        }
-      }
-      break;
-    }
-    case TK_VARIABLE: {
-      testcase( pNC->ncFlags & NC_IsCheck );
-      testcase( pNC->ncFlags & NC_PartIdx );
-      testcase( pNC->ncFlags & NC_IdxExpr );
-      testcase( pNC->ncFlags & NC_GenCol );
-      tdsqlite3ResolveNotValid(pParse, pNC, "parameters",
-               NC_IsCheck|NC_PartIdx|NC_IdxExpr|NC_GenCol, pExpr);
-      break;
-    }
-    case TK_IS:
-    case TK_ISNOT: {
-      Expr *pRight = tdsqlite3ExprSkipCollateAndLikely(pExpr->pRight);
-      assert( !ExprHasProperty(pExpr, EP_Reduced) );
-      /* Handle special cases of "x IS TRUE", "x IS FALSE", "x IS NOT TRUE",
-      ** and "x IS NOT FALSE". */
-      if( pRight->op==TK_ID ){
-        int rc = resolveExprStep(pWalker, pRight);
-        if( rc==WRC_Abort ) return WRC_Abort;
-        if( pRight->op==TK_TRUEFALSE ){
-          pExpr->op2 = pExpr->op;
-          pExpr->op = TK_TRUTH;
-          return WRC_Continue;
-        }
-      }
-      /* Fall thru */
-    }
-    case TK_BETWEEN:
-    case TK_EQ:
-    case TK_NE:
-    case TK_LT:
-    case TK_LE:
-    case TK_GT:
-    case TK_GE: {
-      int nLeft, nRight;
-      if( pParse->db->mallocFailed ) break;
-      assert( pExpr->pLeft!=0 );
-      nLeft = tdsqlite3ExprVectorSize(pExpr->pLeft);
-      if( pExpr->op==TK_BETWEEN ){
-        nRight = tdsqlite3ExprVectorSize(pExpr->x.pList->a[0].pExpr);
-        if( nRight==nLeft ){
-          nRight = tdsqlite3ExprVectorSize(pExpr->x.pList->a[1].pExpr);
-        }
-      }else{
-        assert( pExpr->pRight!=0 );
-        nRight = tdsqlite3ExprVectorSize(pExpr->pRight);
-      }
-      if( nLeft!=nRight ){
-        testcase( pExpr->op==TK_EQ );
-        testcase( pExpr->op==TK_NE );
-        testcase( pExpr->op==TK_LT );
-        testcase( pExpr->op==TK_LE );
-        testcase( pExpr->op==TK_GT );
-        testcase( pExpr->op==TK_GE );
-        testcase( pExpr->op==TK_IS );
-        testcase( pExpr->op==TK_ISNOT );
-        testcase( pExpr->op==TK_BETWEEN );
-        tdsqlite3ErrorMsg(pParse, "row value misused");
-      }
-      break; 
-    }
-  }
-  return (pParse->nErr || pParse->db->mallocFailed) ? WRC_Abort : WRC_Continue;
-}
-
-/*
-** pEList is a list of expressions which are really the result set of the
-** a SELECT statement.  pE is a term in an ORDER BY or GROUP BY clause.
-** This routine checks to see if pE is a simple identifier which corresponds
-** to the AS-name of one of the terms of the expression list.  If it is,
-** this routine return an integer between 1 and N where N is the number of
-** elements in pEList, corresponding to the matching entry.  If there is
-** no match, or if pE is not a simple identifier, then this routine
-** return 0.
-**
-** pEList has been resolved.  pE has not.
-*/
-static int resolveAsName(
-  Parse *pParse,     /* Parsing context for error messages */
-  ExprList *pEList,  /* List of expressions to scan */
-  Expr *pE           /* Expression we are trying to match */
-){
-  int i;             /* Loop counter */
-
-  UNUSED_PARAMETER(pParse);
-
-  if( pE->op==TK_ID ){
-    char *zCol = pE->u.zToken;
-    for(i=0; i<pEList->nExpr; i++){
-      if( pEList->a[i].eEName==ENAME_NAME
-       && tdsqlite3_stricmp(pEList->a[i].zEName, zCol)==0
-      ){
-        return i+1;
-      }
-    }
-  }
-  return 0;
-}
-
-/*
-** pE is a pointer to an expression which is a single term in the
-** ORDER BY of a compound SELECT.  The expression has not been
-** name resolved.
-**
-** At the point this routine is called, we already know that the
-** ORDER BY term is not an integer index into the result set.  That
-** case is handled by the calling routine.
-**
-** Attempt to match pE against result set columns in the left-most
-** SELECT statement.  Return the index i of the matching column,
-** as an indication to the caller that it should sort by the i-th column.
-** The left-most column is 1.  In other words, the value returned is the
-** same integer value that would be used in the SQL statement to indicate
-** the column.
-**
-** If there is no match, return 0.  Return -1 if an error occurs.
-*/
-static int resolveOrderByTermToExprList(
-  Parse *pParse,     /* Parsing context for error messages */
-  Select *pSelect,   /* The SELECT statement with the ORDER BY clause */
-  Expr *pE           /* The specific ORDER BY term */
-){
-  int i;             /* Loop counter */
-  ExprList *pEList;  /* The columns of the result set */
-  NameContext nc;    /* Name context for resolving pE */
-  tdsqlite3 *db;       /* Database connection */
-  int rc;            /* Return code from subprocedures */
-  u8 savedSuppErr;   /* Saved value of db->suppressErr */
-
-  assert( tdsqlite3ExprIsInteger(pE, &i)==0 );
-  pEList = pSelect->pEList;
-
-  /* Resolve all names in the ORDER BY term expression
-  */
-  memset(&nc, 0, sizeof(nc));
-  nc.pParse = pParse;
-  nc.pSrcList = pSelect->pSrc;
-  nc.uNC.pEList = pEList;
-  nc.ncFlags = NC_AllowAgg|NC_UEList;
-  nc.nErr = 0;
-  db = pParse->db;
-  savedSuppErr = db->suppressErr;
-  db->suppressErr = 1;
-  rc = tdsqlite3ResolveExprNames(&nc, pE);
-  db->suppressErr = savedSuppErr;
-  if( rc ) return 0;
-
-  /* Try to match the ORDER BY expression against an expression
-  ** in the result set.  Return an 1-based index of the matching
-  ** result-set entry.
-  */
-  for(i=0; i<pEList->nExpr; i++){
-    if( tdsqlite3ExprCompare(0, pEList->a[i].pExpr, pE, -1)<2 ){
-      return i+1;
-    }
-  }
-
-  /* If no match, return 0. */
-  return 0;
-}
-
-/*
-** Generate an ORDER BY or GROUP BY term out-of-range error.
-*/
-static void resolveOutOfRangeError(
-  Parse *pParse,         /* The error context into which to write the error */
-  const char *zType,     /* "ORDER" or "GROUP" */
-  int i,                 /* The index (1-based) of the term out of range */
-  int mx                 /* Largest permissible value of i */
-){
-  tdsqlite3ErrorMsg(pParse, 
-    "%r %s BY term out of range - should be "
-    "between 1 and %d", i, zType, mx);
-}
-
-/*
-** Analyze the ORDER BY clause in a compound SELECT statement.   Modify
-** each term of the ORDER BY clause is a constant integer between 1
-** and N where N is the number of columns in the compound SELECT.
-**
-** ORDER BY terms that are already an integer between 1 and N are
-** unmodified.  ORDER BY terms that are integers outside the range of
-** 1 through N generate an error.  ORDER BY terms that are expressions
-** are matched against result set expressions of compound SELECT
-** beginning with the left-most SELECT and working toward the right.
-** At the first match, the ORDER BY expression is transformed into
-** the integer column number.
-**
-** Return the number of errors seen.
-*/
-static int resolveCompoundOrderBy(
-  Parse *pParse,        /* Parsing context.  Leave error messages here */
-  Select *pSelect       /* The SELECT statement containing the ORDER BY */
-){
-  int i;
-  ExprList *pOrderBy;
-  ExprList *pEList;
-  tdsqlite3 *db;
-  int moreToDo = 1;
-
-  pOrderBy = pSelect->pOrderBy;
-  if( pOrderBy==0 ) return 0;
-  db = pParse->db;
-  if( pOrderBy->nExpr>db->aLimit[SQLITE_LIMIT_COLUMN] ){
-    tdsqlite3ErrorMsg(pParse, "too many terms in ORDER BY clause");
-    return 1;
-  }
-  for(i=0; i<pOrderBy->nExpr; i++){
-    pOrderBy->a[i].done = 0;
-  }
-  pSelect->pNext = 0;
-  while( pSelect->pPrior ){
-    pSelect->pPrior->pNext = pSelect;
-    pSelect = pSelect->pPrior;
-  }
-  while( pSelect && moreToDo ){
-    struct ExprList_item *pItem;
-    moreToDo = 0;
-    pEList = pSelect->pEList;
-    assert( pEList!=0 );
-    for(i=0, pItem=pOrderBy->a; i<pOrderBy->nExpr; i++, pItem++){
-      int iCol = -1;
-      Expr *pE, *pDup;
-      if( pItem->done ) continue;
-      pE = tdsqlite3ExprSkipCollateAndLikely(pItem->pExpr);
-      if( tdsqlite3ExprIsInteger(pE, &iCol) ){
-        if( iCol<=0 || iCol>pEList->nExpr ){
-          resolveOutOfRangeError(pParse, "ORDER", i+1, pEList->nExpr);
-          return 1;
-        }
-      }else{
-        iCol = resolveAsName(pParse, pEList, pE);
-        if( iCol==0 ){
-          /* Now test if expression pE matches one of the values returned
-          ** by pSelect. In the usual case this is done by duplicating the 
-          ** expression, resolving any symbols in it, and then comparing
-          ** it against each expression returned by the SELECT statement.
-          ** Once the comparisons are finished, the duplicate expression
-          ** is deleted.
-          **
-          ** Or, if this is running as part of an ALTER TABLE operation,
-          ** resolve the symbols in the actual expression, not a duplicate.
-          ** And, if one of the comparisons is successful, leave the expression
-          ** as is instead of transforming it to an integer as in the usual
-          ** case. This allows the code in alter.c to modify column
-          ** refererences within the ORDER BY expression as required.  */
-          if( IN_RENAME_OBJECT ){
-            pDup = pE;
-          }else{
-            pDup = tdsqlite3ExprDup(db, pE, 0);
-          }
-          if( !db->mallocFailed ){
-            assert(pDup);
-            iCol = resolveOrderByTermToExprList(pParse, pSelect, pDup);
-          }
-          if( !IN_RENAME_OBJECT ){
-            tdsqlite3ExprDelete(db, pDup);
-          }
-        }
-      }
-      if( iCol>0 ){
-        /* Convert the ORDER BY term into an integer column number iCol,
-        ** taking care to preserve the COLLATE clause if it exists */
-        if( !IN_RENAME_OBJECT ){
-          Expr *pNew = tdsqlite3Expr(db, TK_INTEGER, 0);
-          if( pNew==0 ) return 1;
-          pNew->flags |= EP_IntValue;
-          pNew->u.iValue = iCol;
-          if( pItem->pExpr==pE ){
-            pItem->pExpr = pNew;
-          }else{
-            Expr *pParent = pItem->pExpr;
-            assert( pParent->op==TK_COLLATE );
-            while( pParent->pLeft->op==TK_COLLATE ) pParent = pParent->pLeft;
-            assert( pParent->pLeft==pE );
-            pParent->pLeft = pNew;
-          }
-          tdsqlite3ExprDelete(db, pE);
-          pItem->u.x.iOrderByCol = (u16)iCol;
-        }
-        pItem->done = 1;
-      }else{
-        moreToDo = 1;
-      }
-    }
-    pSelect = pSelect->pNext;
-  }
-  for(i=0; i<pOrderBy->nExpr; i++){
-    if( pOrderBy->a[i].done==0 ){
-      tdsqlite3ErrorMsg(pParse, "%r ORDER BY term does not match any "
-            "column in the result set", i+1);
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** Check every term in the ORDER BY or GROUP BY clause pOrderBy of
-** the SELECT statement pSelect.  If any term is reference to a
-** result set expression (as determined by the ExprList.a.u.x.iOrderByCol
-** field) then convert that term into a copy of the corresponding result set
-** column.
-**
-** If any errors are detected, add an error message to pParse and
-** return non-zero.  Return zero if no errors are seen.
-*/
-SQLITE_PRIVATE int tdsqlite3ResolveOrderGroupBy(
-  Parse *pParse,        /* Parsing context.  Leave error messages here */
-  Select *pSelect,      /* The SELECT statement containing the clause */
-  ExprList *pOrderBy,   /* The ORDER BY or GROUP BY clause to be processed */
-  const char *zType     /* "ORDER" or "GROUP" */
-){
-  int i;
-  tdsqlite3 *db = pParse->db;
-  ExprList *pEList;
-  struct ExprList_item *pItem;
-
-  if( pOrderBy==0 || pParse->db->mallocFailed || IN_RENAME_OBJECT ) return 0;
-  if( pOrderBy->nExpr>db->aLimit[SQLITE_LIMIT_COLUMN] ){
-    tdsqlite3ErrorMsg(pParse, "too many terms in %s BY clause", zType);
-    return 1;
-  }
-  pEList = pSelect->pEList;
-  assert( pEList!=0 );  /* tdsqlite3SelectNew() guarantees this */
-  for(i=0, pItem=pOrderBy->a; i<pOrderBy->nExpr; i++, pItem++){
-    if( pItem->u.x.iOrderByCol ){
-      if( pItem->u.x.iOrderByCol>pEList->nExpr ){
-        resolveOutOfRangeError(pParse, zType, i+1, pEList->nExpr);
-        return 1;
-      }
-      resolveAlias(pParse, pEList, pItem->u.x.iOrderByCol-1, pItem->pExpr,
-                   zType,0);
-    }
-  }
-  return 0;
-}
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-/*
-** Walker callback for windowRemoveExprFromSelect().
-*/
-static int resolveRemoveWindowsCb(Walker *pWalker, Expr *pExpr){
-  UNUSED_PARAMETER(pWalker);
-  if( ExprHasProperty(pExpr, EP_WinFunc) ){
-    Window *pWin = pExpr->y.pWin;
-    tdsqlite3WindowUnlinkFromSelect(pWin);
-  }
-  return WRC_Continue;
-}
-
-/*
-** Remove any Window objects owned by the expression pExpr from the
-** Select.pWin list of Select object pSelect.
-*/
-static void windowRemoveExprFromSelect(Select *pSelect, Expr *pExpr){
-  if( pSelect->pWin ){
-    Walker sWalker;
-    memset(&sWalker, 0, sizeof(Walker));
-    sWalker.xExprCallback = resolveRemoveWindowsCb;
-    sWalker.u.pSelect = pSelect;
-    tdsqlite3WalkExpr(&sWalker, pExpr);
-  }
-}
-#else
-# define windowRemoveExprFromSelect(a, b)
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-/*
-** pOrderBy is an ORDER BY or GROUP BY clause in SELECT statement pSelect.
-** The Name context of the SELECT statement is pNC.  zType is either
-** "ORDER" or "GROUP" depending on which type of clause pOrderBy is.
-**
-** This routine resolves each term of the clause into an expression.
-** If the order-by term is an integer I between 1 and N (where N is the
-** number of columns in the result set of the SELECT) then the expression
-** in the resolution is a copy of the I-th result-set expression.  If
-** the order-by term is an identifier that corresponds to the AS-name of
-** a result-set expression, then the term resolves to a copy of the
-** result-set expression.  Otherwise, the expression is resolved in
-** the usual way - using tdsqlite3ResolveExprNames().
-**
-** This routine returns the number of errors.  If errors occur, then
-** an appropriate error message might be left in pParse.  (OOM errors
-** excepted.)
-*/
-static int resolveOrderGroupBy(
-  NameContext *pNC,     /* The name context of the SELECT statement */
-  Select *pSelect,      /* The SELECT statement holding pOrderBy */
-  ExprList *pOrderBy,   /* An ORDER BY or GROUP BY clause to resolve */
-  const char *zType     /* Either "ORDER" or "GROUP", as appropriate */
-){
-  int i, j;                      /* Loop counters */
-  int iCol;                      /* Column number */
-  struct ExprList_item *pItem;   /* A term of the ORDER BY clause */
-  Parse *pParse;                 /* Parsing context */
-  int nResult;                   /* Number of terms in the result set */
-
-  if( pOrderBy==0 ) return 0;
-  nResult = pSelect->pEList->nExpr;
-  pParse = pNC->pParse;
-  for(i=0, pItem=pOrderBy->a; i<pOrderBy->nExpr; i++, pItem++){
-    Expr *pE = pItem->pExpr;
-    Expr *pE2 = tdsqlite3ExprSkipCollateAndLikely(pE);
-    if( zType[0]!='G' ){
-      iCol = resolveAsName(pParse, pSelect->pEList, pE2);
-      if( iCol>0 ){
-        /* If an AS-name match is found, mark this ORDER BY column as being
-        ** a copy of the iCol-th result-set column.  The subsequent call to
-        ** tdsqlite3ResolveOrderGroupBy() will convert the expression to a
-        ** copy of the iCol-th result-set expression. */
-        pItem->u.x.iOrderByCol = (u16)iCol;
-        continue;
-      }
-    }
-    if( tdsqlite3ExprIsInteger(pE2, &iCol) ){
-      /* The ORDER BY term is an integer constant.  Again, set the column
-      ** number so that tdsqlite3ResolveOrderGroupBy() will convert the
-      ** order-by term to a copy of the result-set expression */
-      if( iCol<1 || iCol>0xffff ){
-        resolveOutOfRangeError(pParse, zType, i+1, nResult);
-        return 1;
-      }
-      pItem->u.x.iOrderByCol = (u16)iCol;
-      continue;
-    }
-
-    /* Otherwise, treat the ORDER BY term as an ordinary expression */
-    pItem->u.x.iOrderByCol = 0;
-    if( tdsqlite3ResolveExprNames(pNC, pE) ){
-      return 1;
-    }
-    for(j=0; j<pSelect->pEList->nExpr; j++){
-      if( tdsqlite3ExprCompare(0, pE, pSelect->pEList->a[j].pExpr, -1)==0 ){
-        /* Since this expresion is being changed into a reference
-        ** to an identical expression in the result set, remove all Window
-        ** objects belonging to the expression from the Select.pWin list. */
-        windowRemoveExprFromSelect(pSelect, pE);
-        pItem->u.x.iOrderByCol = j+1;
-      }
-    }
-  }
-  return tdsqlite3ResolveOrderGroupBy(pParse, pSelect, pOrderBy, zType);
-}
-
-/*
-** Resolve names in the SELECT statement p and all of its descendants.
-*/
-static int resolveSelectStep(Walker *pWalker, Select *p){
-  NameContext *pOuterNC;  /* Context that contains this SELECT */
-  NameContext sNC;        /* Name context of this SELECT */
-  int isCompound;         /* True if p is a compound select */
-  int nCompound;          /* Number of compound terms processed so far */
-  Parse *pParse;          /* Parsing context */
-  int i;                  /* Loop counter */
-  ExprList *pGroupBy;     /* The GROUP BY clause */
-  Select *pLeftmost;      /* Left-most of SELECT of a compound */
-  tdsqlite3 *db;            /* Database connection */
-  
-
-  assert( p!=0 );
-  if( p->selFlags & SF_Resolved ){
-    return WRC_Prune;
-  }
-  pOuterNC = pWalker->u.pNC;
-  pParse = pWalker->pParse;
-  db = pParse->db;
-
-  /* Normally tdsqlite3SelectExpand() will be called first and will have
-  ** already expanded this SELECT.  However, if this is a subquery within
-  ** an expression, tdsqlite3ResolveExprNames() will be called without a
-  ** prior call to tdsqlite3SelectExpand().  When that happens, let
-  ** tdsqlite3SelectPrep() do all of the processing for this SELECT.
-  ** tdsqlite3SelectPrep() will invoke both tdsqlite3SelectExpand() and
-  ** this routine in the correct order.
-  */
-  if( (p->selFlags & SF_Expanded)==0 ){
-    tdsqlite3SelectPrep(pParse, p, pOuterNC);
-    return (pParse->nErr || db->mallocFailed) ? WRC_Abort : WRC_Prune;
-  }
-
-  isCompound = p->pPrior!=0;
-  nCompound = 0;
-  pLeftmost = p;
-  while( p ){
-    assert( (p->selFlags & SF_Expanded)!=0 );
-    assert( (p->selFlags & SF_Resolved)==0 );
-    p->selFlags |= SF_Resolved;
-
-    /* Resolve the expressions in the LIMIT and OFFSET clauses. These
-    ** are not allowed to refer to any names, so pass an empty NameContext.
-    */
-    memset(&sNC, 0, sizeof(sNC));
-    sNC.pParse = pParse;
-    sNC.pWinSelect = p;
-    if( tdsqlite3ResolveExprNames(&sNC, p->pLimit) ){
-      return WRC_Abort;
-    }
-
-    /* If the SF_Converted flags is set, then this Select object was
-    ** was created by the convertCompoundSelectToSubquery() function.
-    ** In this case the ORDER BY clause (p->pOrderBy) should be resolved
-    ** as if it were part of the sub-query, not the parent. This block
-    ** moves the pOrderBy down to the sub-query. It will be moved back
-    ** after the names have been resolved.  */
-    if( p->selFlags & SF_Converted ){
-      Select *pSub = p->pSrc->a[0].pSelect;
-      assert( p->pSrc->nSrc==1 && p->pOrderBy );
-      assert( pSub->pPrior && pSub->pOrderBy==0 );
-      pSub->pOrderBy = p->pOrderBy;
-      p->pOrderBy = 0;
-    }
-  
-    /* Recursively resolve names in all subqueries
-    */
-    for(i=0; i<p->pSrc->nSrc; i++){
-      struct SrcList_item *pItem = &p->pSrc->a[i];
-      if( pItem->pSelect && (pItem->pSelect->selFlags & SF_Resolved)==0 ){
-        NameContext *pNC;         /* Used to iterate name contexts */
-        int nRef = 0;             /* Refcount for pOuterNC and outer contexts */
-        const char *zSavedContext = pParse->zAuthContext;
-
-        /* Count the total number of references to pOuterNC and all of its
-        ** parent contexts. After resolving references to expressions in
-        ** pItem->pSelect, check if this value has changed. If so, then
-        ** SELECT statement pItem->pSelect must be correlated. Set the
-        ** pItem->fg.isCorrelated flag if this is the case. */
-        for(pNC=pOuterNC; pNC; pNC=pNC->pNext) nRef += pNC->nRef;
-
-        if( pItem->zName ) pParse->zAuthContext = pItem->zName;
-        tdsqlite3ResolveSelectNames(pParse, pItem->pSelect, pOuterNC);
-        pParse->zAuthContext = zSavedContext;
-        if( pParse->nErr || db->mallocFailed ) return WRC_Abort;
-
-        for(pNC=pOuterNC; pNC; pNC=pNC->pNext) nRef -= pNC->nRef;
-        assert( pItem->fg.isCorrelated==0 && nRef<=0 );
-        pItem->fg.isCorrelated = (nRef!=0);
-      }
-    }
-  
-    /* Set up the local name-context to pass to tdsqlite3ResolveExprNames() to
-    ** resolve the result-set expression list.
-    */
-    sNC.ncFlags = NC_AllowAgg|NC_AllowWin;
-    sNC.pSrcList = p->pSrc;
-    sNC.pNext = pOuterNC;
-  
-    /* Resolve names in the result set. */
-    if( tdsqlite3ResolveExprListNames(&sNC, p->pEList) ) return WRC_Abort;
-    sNC.ncFlags &= ~NC_AllowWin;
-  
-    /* If there are no aggregate functions in the result-set, and no GROUP BY 
-    ** expression, do not allow aggregates in any of the other expressions.
-    */
-    assert( (p->selFlags & SF_Aggregate)==0 );
-    pGroupBy = p->pGroupBy;
-    if( pGroupBy || (sNC.ncFlags & NC_HasAgg)!=0 ){
-      assert( NC_MinMaxAgg==SF_MinMaxAgg );
-      p->selFlags |= SF_Aggregate | (sNC.ncFlags&NC_MinMaxAgg);
-    }else{
-      sNC.ncFlags &= ~NC_AllowAgg;
-    }
-  
-    /* If a HAVING clause is present, then there must be a GROUP BY clause.
-    */
-    if( p->pHaving && !pGroupBy ){
-      tdsqlite3ErrorMsg(pParse, "a GROUP BY clause is required before HAVING");
-      return WRC_Abort;
-    }
-  
-    /* Add the output column list to the name-context before parsing the
-    ** other expressions in the SELECT statement. This is so that
-    ** expressions in the WHERE clause (etc.) can refer to expressions by
-    ** aliases in the result set.
-    **
-    ** Minor point: If this is the case, then the expression will be
-    ** re-evaluated for each reference to it.
-    */
-    assert( (sNC.ncFlags & (NC_UAggInfo|NC_UUpsert))==0 );
-    sNC.uNC.pEList = p->pEList;
-    sNC.ncFlags |= NC_UEList;
-    if( tdsqlite3ResolveExprNames(&sNC, p->pHaving) ) return WRC_Abort;
-    if( tdsqlite3ResolveExprNames(&sNC, p->pWhere) ) return WRC_Abort;
-
-    /* Resolve names in table-valued-function arguments */
-    for(i=0; i<p->pSrc->nSrc; i++){
-      struct SrcList_item *pItem = &p->pSrc->a[i];
-      if( pItem->fg.isTabFunc
-       && tdsqlite3ResolveExprListNames(&sNC, pItem->u1.pFuncArg) 
-      ){
-        return WRC_Abort;
-      }
-    }
-
-    /* The ORDER BY and GROUP BY clauses may not refer to terms in
-    ** outer queries 
-    */
-    sNC.pNext = 0;
-    sNC.ncFlags |= NC_AllowAgg|NC_AllowWin;
-
-    /* If this is a converted compound query, move the ORDER BY clause from 
-    ** the sub-query back to the parent query. At this point each term
-    ** within the ORDER BY clause has been transformed to an integer value.
-    ** These integers will be replaced by copies of the corresponding result
-    ** set expressions by the call to resolveOrderGroupBy() below.  */
-    if( p->selFlags & SF_Converted ){
-      Select *pSub = p->pSrc->a[0].pSelect;
-      p->pOrderBy = pSub->pOrderBy;
-      pSub->pOrderBy = 0;
-    }
-
-    /* Process the ORDER BY clause for singleton SELECT statements.
-    ** The ORDER BY clause for compounds SELECT statements is handled
-    ** below, after all of the result-sets for all of the elements of
-    ** the compound have been resolved.
-    **
-    ** If there is an ORDER BY clause on a term of a compound-select other
-    ** than the right-most term, then that is a syntax error.  But the error
-    ** is not detected until much later, and so we need to go ahead and
-    ** resolve those symbols on the incorrect ORDER BY for consistency.
-    */
-    if( isCompound<=nCompound  /* Defer right-most ORDER BY of a compound */
-     && resolveOrderGroupBy(&sNC, p, p->pOrderBy, "ORDER")
-    ){
-      return WRC_Abort;
-    }
-    if( db->mallocFailed ){
-      return WRC_Abort;
-    }
-    sNC.ncFlags &= ~NC_AllowWin;
-  
-    /* Resolve the GROUP BY clause.  At the same time, make sure 
-    ** the GROUP BY clause does not contain aggregate functions.
-    */
-    if( pGroupBy ){
-      struct ExprList_item *pItem;
-    
-      if( resolveOrderGroupBy(&sNC, p, pGroupBy, "GROUP") || db->mallocFailed ){
-        return WRC_Abort;
-      }
-      for(i=0, pItem=pGroupBy->a; i<pGroupBy->nExpr; i++, pItem++){
-        if( ExprHasProperty(pItem->pExpr, EP_Agg) ){
-          tdsqlite3ErrorMsg(pParse, "aggregate functions are not allowed in "
-              "the GROUP BY clause");
-          return WRC_Abort;
-        }
-      }
-    }
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    if( IN_RENAME_OBJECT ){
-      Window *pWin;
-      for(pWin=p->pWinDefn; pWin; pWin=pWin->pNextWin){
-        if( tdsqlite3ResolveExprListNames(&sNC, pWin->pOrderBy)
-         || tdsqlite3ResolveExprListNames(&sNC, pWin->pPartition)
-        ){
-          return WRC_Abort;
-        }
-      }
-    }
-#endif
-
-    /* If this is part of a compound SELECT, check that it has the right
-    ** number of expressions in the select list. */
-    if( p->pNext && p->pEList->nExpr!=p->pNext->pEList->nExpr ){
-      tdsqlite3SelectWrongNumTermsError(pParse, p->pNext);
-      return WRC_Abort;
-    }
-
-    /* Advance to the next term of the compound
-    */
-    p = p->pPrior;
-    nCompound++;
-  }
-
-  /* Resolve the ORDER BY on a compound SELECT after all terms of
-  ** the compound have been resolved.
-  */
-  if( isCompound && resolveCompoundOrderBy(pParse, pLeftmost) ){
-    return WRC_Abort;
-  }
-
-  return WRC_Prune;
-}
-
-/*
-** This routine walks an expression tree and resolves references to
-** table columns and result-set columns.  At the same time, do error
-** checking on function usage and set a flag if any aggregate functions
-** are seen.
-**
-** To resolve table columns references we look for nodes (or subtrees) of the 
-** form X.Y.Z or Y.Z or just Z where
-**
-**      X:   The name of a database.  Ex:  "main" or "temp" or
-**           the symbolic name assigned to an ATTACH-ed database.
-**
-**      Y:   The name of a table in a FROM clause.  Or in a trigger
-**           one of the special names "old" or "new".
-**
-**      Z:   The name of a column in table Y.
-**
-** The node at the root of the subtree is modified as follows:
-**
-**    Expr.op        Changed to TK_COLUMN
-**    Expr.pTab      Points to the Table object for X.Y
-**    Expr.iColumn   The column index in X.Y.  -1 for the rowid.
-**    Expr.iTable    The VDBE cursor number for X.Y
-**
-**
-** To resolve result-set references, look for expression nodes of the
-** form Z (with no X and Y prefix) where the Z matches the right-hand
-** size of an AS clause in the result-set of a SELECT.  The Z expression
-** is replaced by a copy of the left-hand side of the result-set expression.
-** Table-name and function resolution occurs on the substituted expression
-** tree.  For example, in:
-**
-**      SELECT a+b AS x, c+d AS y FROM t1 ORDER BY x;
-**
-** The "x" term of the order by is replaced by "a+b" to render:
-**
-**      SELECT a+b AS x, c+d AS y FROM t1 ORDER BY a+b;
-**
-** Function calls are checked to make sure that the function is 
-** defined and that the correct number of arguments are specified.
-** If the function is an aggregate function, then the NC_HasAgg flag is
-** set and the opcode is changed from TK_FUNCTION to TK_AGG_FUNCTION.
-** If an expression contains aggregate functions then the EP_Agg
-** property on the expression is set.
-**
-** An error message is left in pParse if anything is amiss.  The number
-** if errors is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3ResolveExprNames( 
-  NameContext *pNC,       /* Namespace to resolve expressions in. */
-  Expr *pExpr             /* The expression to be analyzed. */
-){
-  int savedHasAgg;
-  Walker w;
-
-  if( pExpr==0 ) return SQLITE_OK;
-  savedHasAgg = pNC->ncFlags & (NC_HasAgg|NC_MinMaxAgg|NC_HasWin);
-  pNC->ncFlags &= ~(NC_HasAgg|NC_MinMaxAgg|NC_HasWin);
-  w.pParse = pNC->pParse;
-  w.xExprCallback = resolveExprStep;
-  w.xSelectCallback = resolveSelectStep;
-  w.xSelectCallback2 = 0;
-  w.u.pNC = pNC;
-#if SQLITE_MAX_EXPR_DEPTH>0
-  w.pParse->nHeight += pExpr->nHeight;
-  if( tdsqlite3ExprCheckHeight(w.pParse, w.pParse->nHeight) ){
-    return SQLITE_ERROR;
-  }
-#endif
-  tdsqlite3WalkExpr(&w, pExpr);
-#if SQLITE_MAX_EXPR_DEPTH>0
-  w.pParse->nHeight -= pExpr->nHeight;
-#endif
-  assert( EP_Agg==NC_HasAgg );
-  assert( EP_Win==NC_HasWin );
-  testcase( pNC->ncFlags & NC_HasAgg );
-  testcase( pNC->ncFlags & NC_HasWin );
-  ExprSetProperty(pExpr, pNC->ncFlags & (NC_HasAgg|NC_HasWin) );
-  pNC->ncFlags |= savedHasAgg;
-  return pNC->nErr>0 || w.pParse->nErr>0;
-}
-
-/*
-** Resolve all names for all expression in an expression list.  This is
-** just like tdsqlite3ResolveExprNames() except that it works for an expression
-** list rather than a single expression.
-*/
-SQLITE_PRIVATE int tdsqlite3ResolveExprListNames( 
-  NameContext *pNC,       /* Namespace to resolve expressions in. */
-  ExprList *pList         /* The expression list to be analyzed. */
-){
-  int i;
-  if( pList ){
-    for(i=0; i<pList->nExpr; i++){
-      if( tdsqlite3ResolveExprNames(pNC, pList->a[i].pExpr) ) return WRC_Abort;
-    }
-  }
-  return WRC_Continue;
-}
-
-/*
-** Resolve all names in all expressions of a SELECT and in all
-** decendents of the SELECT, including compounds off of p->pPrior,
-** subqueries in expressions, and subqueries used as FROM clause
-** terms.
-**
-** See tdsqlite3ResolveExprNames() for a description of the kinds of
-** transformations that occur.
-**
-** All SELECT statements should have been expanded using
-** tdsqlite3SelectExpand() prior to invoking this routine.
-*/
-SQLITE_PRIVATE void tdsqlite3ResolveSelectNames(
-  Parse *pParse,         /* The parser context */
-  Select *p,             /* The SELECT statement being coded. */
-  NameContext *pOuterNC  /* Name context for parent SELECT statement */
-){
-  Walker w;
-
-  assert( p!=0 );
-  w.xExprCallback = resolveExprStep;
-  w.xSelectCallback = resolveSelectStep;
-  w.xSelectCallback2 = 0;
-  w.pParse = pParse;
-  w.u.pNC = pOuterNC;
-  tdsqlite3WalkSelect(&w, p);
-}
-
-/*
-** Resolve names in expressions that can only reference a single table
-** or which cannot reference any tables at all.  Examples:
-**
-**                                                    "type" flag
-**                                                    ------------
-**    (1)   CHECK constraints                         NC_IsCheck
-**    (2)   WHERE clauses on partial indices          NC_PartIdx
-**    (3)   Expressions in indexes on expressions     NC_IdxExpr
-**    (4)   Expression arguments to VACUUM INTO.      0
-**    (5)   GENERATED ALWAYS as expressions           NC_GenCol
-**
-** In all cases except (4), the Expr.iTable value for Expr.op==TK_COLUMN
-** nodes of the expression is set to -1 and the Expr.iColumn value is
-** set to the column number.  In case (4), TK_COLUMN nodes cause an error.
-**
-** Any errors cause an error message to be set in pParse.
-*/
-SQLITE_PRIVATE int tdsqlite3ResolveSelfReference(
-  Parse *pParse,   /* Parsing context */
-  Table *pTab,     /* The table being referenced, or NULL */
-  int type,        /* NC_IsCheck, NC_PartIdx, NC_IdxExpr, NC_GenCol, or 0 */
-  Expr *pExpr,     /* Expression to resolve.  May be NULL. */
-  ExprList *pList  /* Expression list to resolve.  May be NULL. */
-){
-  SrcList sSrc;                   /* Fake SrcList for pParse->pNewTable */
-  NameContext sNC;                /* Name context for pParse->pNewTable */
-  int rc;
-
-  assert( type==0 || pTab!=0 );
-  assert( type==NC_IsCheck || type==NC_PartIdx || type==NC_IdxExpr
-          || type==NC_GenCol || pTab==0 );
-  memset(&sNC, 0, sizeof(sNC));
-  memset(&sSrc, 0, sizeof(sSrc));
-  if( pTab ){
-    sSrc.nSrc = 1;
-    sSrc.a[0].zName = pTab->zName;
-    sSrc.a[0].pTab = pTab;
-    sSrc.a[0].iCursor = -1;
-    if( pTab->pSchema!=pParse->db->aDb[1].pSchema ){
-      /* Cause EP_FromDDL to be set on TK_FUNCTION nodes of non-TEMP
-      ** schema elements */
-      type |= NC_FromDDL;
-    }
-  }
-  sNC.pParse = pParse;
-  sNC.pSrcList = &sSrc;
-  sNC.ncFlags = type | NC_IsDDL;
-  if( (rc = tdsqlite3ResolveExprNames(&sNC, pExpr))!=SQLITE_OK ) return rc;
-  if( pList ) rc = tdsqlite3ResolveExprListNames(&sNC, pList);
-  return rc;
-}
-
-/************** End of resolve.c *********************************************/
-/************** Begin file expr.c ********************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains routines used for analyzing expressions and
-** for generating VDBE code that evaluates expressions in SQLite.
-*/
-/* #include "sqliteInt.h" */
-
-/* Forward declarations */
-static void exprCodeBetween(Parse*,Expr*,int,void(*)(Parse*,Expr*,int,int),int);
-static int exprCodeVector(Parse *pParse, Expr *p, int *piToFree);
-
-/*
-** Return the affinity character for a single column of a table.
-*/
-SQLITE_PRIVATE char tdsqlite3TableColumnAffinity(Table *pTab, int iCol){
-  assert( iCol<pTab->nCol );
-  return iCol>=0 ? pTab->aCol[iCol].affinity : SQLITE_AFF_INTEGER;
-}
-
-/*
-** Return the 'affinity' of the expression pExpr if any.
-**
-** If pExpr is a column, a reference to a column via an 'AS' alias,
-** or a sub-select with a column as the return value, then the 
-** affinity of that column is returned. Otherwise, 0x00 is returned,
-** indicating no affinity for the expression.
-**
-** i.e. the WHERE clause expressions in the following statements all
-** have an affinity:
-**
-** CREATE TABLE t1(a);
-** SELECT * FROM t1 WHERE a;
-** SELECT a AS b FROM t1 WHERE b;
-** SELECT * FROM t1 WHERE (select a from t1);
-*/
-SQLITE_PRIVATE char tdsqlite3ExprAffinity(Expr *pExpr){
-  int op;
-  while( ExprHasProperty(pExpr, EP_Skip) ){
-    assert( pExpr->op==TK_COLLATE );
-    pExpr = pExpr->pLeft;
-    assert( pExpr!=0 );
-  }
-  op = pExpr->op;
-  if( op==TK_SELECT ){
-    assert( pExpr->flags&EP_xIsSelect );
-    return tdsqlite3ExprAffinity(pExpr->x.pSelect->pEList->a[0].pExpr);
-  }
-  if( op==TK_REGISTER ) op = pExpr->op2;
-#ifndef SQLITE_OMIT_CAST
-  if( op==TK_CAST ){
-    assert( !ExprHasProperty(pExpr, EP_IntValue) );
-    return tdsqlite3AffinityType(pExpr->u.zToken, 0);
-  }
-#endif
-  if( (op==TK_AGG_COLUMN || op==TK_COLUMN) && pExpr->y.pTab ){
-    return tdsqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn);
-  }
-  if( op==TK_SELECT_COLUMN ){
-    assert( pExpr->pLeft->flags&EP_xIsSelect );
-    return tdsqlite3ExprAffinity(
-        pExpr->pLeft->x.pSelect->pEList->a[pExpr->iColumn].pExpr
-    );
-  }
-  if( op==TK_VECTOR ){
-    return tdsqlite3ExprAffinity(pExpr->x.pList->a[0].pExpr);
-  }
-  return pExpr->affExpr;
-}
-
-/*
-** Set the collating sequence for expression pExpr to be the collating
-** sequence named by pToken.   Return a pointer to a new Expr node that
-** implements the COLLATE operator.
-**
-** If a memory allocation error occurs, that fact is recorded in pParse->db
-** and the pExpr parameter is returned unchanged.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprAddCollateToken(
-  Parse *pParse,           /* Parsing context */
-  Expr *pExpr,             /* Add the "COLLATE" clause to this expression */
-  const Token *pCollName,  /* Name of collating sequence */
-  int dequote              /* True to dequote pCollName */
-){
-  if( pCollName->n>0 ){
-    Expr *pNew = tdsqlite3ExprAlloc(pParse->db, TK_COLLATE, pCollName, dequote);
-    if( pNew ){
-      pNew->pLeft = pExpr;
-      pNew->flags |= EP_Collate|EP_Skip;
-      pExpr = pNew;
-    }
-  }
-  return pExpr;
-}
-SQLITE_PRIVATE Expr *tdsqlite3ExprAddCollateString(Parse *pParse, Expr *pExpr, const char *zC){
-  Token s;
-  assert( zC!=0 );
-  tdsqlite3TokenInit(&s, (char*)zC);
-  return tdsqlite3ExprAddCollateToken(pParse, pExpr, &s, 0);
-}
-
-/*
-** Skip over any TK_COLLATE operators.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprSkipCollate(Expr *pExpr){
-  while( pExpr && ExprHasProperty(pExpr, EP_Skip) ){
-    assert( pExpr->op==TK_COLLATE );
-    pExpr = pExpr->pLeft;
-  }   
-  return pExpr;
-}
-
-/*
-** Skip over any TK_COLLATE operators and/or any unlikely()
-** or likelihood() or likely() functions at the root of an
-** expression.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprSkipCollateAndLikely(Expr *pExpr){
-  while( pExpr && ExprHasProperty(pExpr, EP_Skip|EP_Unlikely) ){
-    if( ExprHasProperty(pExpr, EP_Unlikely) ){
-      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-      assert( pExpr->x.pList->nExpr>0 );
-      assert( pExpr->op==TK_FUNCTION );
-      pExpr = pExpr->x.pList->a[0].pExpr;
-    }else{
-      assert( pExpr->op==TK_COLLATE );
-      pExpr = pExpr->pLeft;
-    }
-  }   
-  return pExpr;
-}
-
-/*
-** Return the collation sequence for the expression pExpr. If
-** there is no defined collating sequence, return NULL.
-**
-** See also: tdsqlite3ExprNNCollSeq()
-**
-** The tdsqlite3ExprNNCollSeq() works the same exact that it returns the
-** default collation if pExpr has no defined collation.
-**
-** The collating sequence might be determined by a COLLATE operator
-** or by the presence of a column with a defined collating sequence.
-** COLLATE operators take first precedence.  Left operands take
-** precedence over right operands.
-*/
-SQLITE_PRIVATE CollSeq *tdsqlite3ExprCollSeq(Parse *pParse, Expr *pExpr){
-  tdsqlite3 *db = pParse->db;
-  CollSeq *pColl = 0;
-  Expr *p = pExpr;
-  while( p ){
-    int op = p->op;
-    if( op==TK_REGISTER ) op = p->op2;
-    if( (op==TK_AGG_COLUMN || op==TK_COLUMN || op==TK_TRIGGER)
-     && p->y.pTab!=0
-    ){
-      /* op==TK_REGISTER && p->y.pTab!=0 happens when pExpr was originally
-      ** a TK_COLUMN but was previously evaluated and cached in a register */
-      int j = p->iColumn;
-      if( j>=0 ){
-        const char *zColl = p->y.pTab->aCol[j].zColl;
-        pColl = tdsqlite3FindCollSeq(db, ENC(db), zColl, 0);
-      }
-      break;
-    }
-    if( op==TK_CAST || op==TK_UPLUS ){
-      p = p->pLeft;
-      continue;
-    }
-    if( op==TK_VECTOR ){
-      p = p->x.pList->a[0].pExpr;
-      continue;
-    }
-    if( op==TK_COLLATE ){
-      pColl = tdsqlite3GetCollSeq(pParse, ENC(db), 0, p->u.zToken);
-      break;
-    }
-    if( p->flags & EP_Collate ){
-      if( p->pLeft && (p->pLeft->flags & EP_Collate)!=0 ){
-        p = p->pLeft;
-      }else{
-        Expr *pNext  = p->pRight;
-        /* The Expr.x union is never used at the same time as Expr.pRight */
-        assert( p->x.pList==0 || p->pRight==0 );
-        if( p->x.pList!=0 
-         && !db->mallocFailed
-         && ALWAYS(!ExprHasProperty(p, EP_xIsSelect))
-        ){
-          int i;
-          for(i=0; i<p->x.pList->nExpr; i++){
-            if( ExprHasProperty(p->x.pList->a[i].pExpr, EP_Collate) ){
-              pNext = p->x.pList->a[i].pExpr;
-              break;
-            }
-          }
-        }
-        p = pNext;
-      }
-    }else{
-      break;
-    }
-  }
-  if( tdsqlite3CheckCollSeq(pParse, pColl) ){ 
-    pColl = 0;
-  }
-  return pColl;
-}
-
-/*
-** Return the collation sequence for the expression pExpr. If
-** there is no defined collating sequence, return a pointer to the
-** defautl collation sequence.
-**
-** See also: tdsqlite3ExprCollSeq()
-**
-** The tdsqlite3ExprCollSeq() routine works the same except that it
-** returns NULL if there is no defined collation.
-*/
-SQLITE_PRIVATE CollSeq *tdsqlite3ExprNNCollSeq(Parse *pParse, Expr *pExpr){
-  CollSeq *p = tdsqlite3ExprCollSeq(pParse, pExpr);
-  if( p==0 ) p = pParse->db->pDfltColl;
-  assert( p!=0 );
-  return p;
-}
-
-/*
-** Return TRUE if the two expressions have equivalent collating sequences.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCollSeqMatch(Parse *pParse, Expr *pE1, Expr *pE2){
-  CollSeq *pColl1 = tdsqlite3ExprNNCollSeq(pParse, pE1);
-  CollSeq *pColl2 = tdsqlite3ExprNNCollSeq(pParse, pE2);
-  return tdsqlite3StrICmp(pColl1->zName, pColl2->zName)==0;
-}
-
-/*
-** pExpr is an operand of a comparison operator.  aff2 is the
-** type affinity of the other operand.  This routine returns the
-** type affinity that should be used for the comparison operator.
-*/
-SQLITE_PRIVATE char tdsqlite3CompareAffinity(Expr *pExpr, char aff2){
-  char aff1 = tdsqlite3ExprAffinity(pExpr);
-  if( aff1>SQLITE_AFF_NONE && aff2>SQLITE_AFF_NONE ){
-    /* Both sides of the comparison are columns. If one has numeric
-    ** affinity, use that. Otherwise use no affinity.
-    */
-    if( tdsqlite3IsNumericAffinity(aff1) || tdsqlite3IsNumericAffinity(aff2) ){
-      return SQLITE_AFF_NUMERIC;
-    }else{
-      return SQLITE_AFF_BLOB;
-    }
-  }else{
-    /* One side is a column, the other is not. Use the columns affinity. */
-    assert( aff1<=SQLITE_AFF_NONE || aff2<=SQLITE_AFF_NONE );
-    return (aff1<=SQLITE_AFF_NONE ? aff2 : aff1) | SQLITE_AFF_NONE;
-  }
-}
-
-/*
-** pExpr is a comparison operator.  Return the type affinity that should
-** be applied to both operands prior to doing the comparison.
-*/
-static char comparisonAffinity(Expr *pExpr){
-  char aff;
-  assert( pExpr->op==TK_EQ || pExpr->op==TK_IN || pExpr->op==TK_LT ||
-          pExpr->op==TK_GT || pExpr->op==TK_GE || pExpr->op==TK_LE ||
-          pExpr->op==TK_NE || pExpr->op==TK_IS || pExpr->op==TK_ISNOT );
-  assert( pExpr->pLeft );
-  aff = tdsqlite3ExprAffinity(pExpr->pLeft);
-  if( pExpr->pRight ){
-    aff = tdsqlite3CompareAffinity(pExpr->pRight, aff);
-  }else if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-    aff = tdsqlite3CompareAffinity(pExpr->x.pSelect->pEList->a[0].pExpr, aff);
-  }else if( aff==0 ){
-    aff = SQLITE_AFF_BLOB;
-  }
-  return aff;
-}
-
-/*
-** pExpr is a comparison expression, eg. '=', '<', IN(...) etc.
-** idx_affinity is the affinity of an indexed column. Return true
-** if the index with affinity idx_affinity may be used to implement
-** the comparison in pExpr.
-*/
-SQLITE_PRIVATE int tdsqlite3IndexAffinityOk(Expr *pExpr, char idx_affinity){
-  char aff = comparisonAffinity(pExpr);
-  if( aff<SQLITE_AFF_TEXT ){
-    return 1;
-  }
-  if( aff==SQLITE_AFF_TEXT ){
-    return idx_affinity==SQLITE_AFF_TEXT;
-  }
-  return tdsqlite3IsNumericAffinity(idx_affinity);
-}
-
-/*
-** Return the P5 value that should be used for a binary comparison
-** opcode (OP_Eq, OP_Ge etc.) used to compare pExpr1 and pExpr2.
-*/
-static u8 binaryCompareP5(Expr *pExpr1, Expr *pExpr2, int jumpIfNull){
-  u8 aff = (char)tdsqlite3ExprAffinity(pExpr2);
-  aff = (u8)tdsqlite3CompareAffinity(pExpr1, aff) | (u8)jumpIfNull;
-  return aff;
-}
-
-/*
-** Return a pointer to the collation sequence that should be used by
-** a binary comparison operator comparing pLeft and pRight.
-**
-** If the left hand expression has a collating sequence type, then it is
-** used. Otherwise the collation sequence for the right hand expression
-** is used, or the default (BINARY) if neither expression has a collating
-** type.
-**
-** Argument pRight (but not pLeft) may be a null pointer. In this case,
-** it is not considered.
-*/
-SQLITE_PRIVATE CollSeq *tdsqlite3BinaryCompareCollSeq(
-  Parse *pParse, 
-  Expr *pLeft, 
-  Expr *pRight
-){
-  CollSeq *pColl;
-  assert( pLeft );
-  if( pLeft->flags & EP_Collate ){
-    pColl = tdsqlite3ExprCollSeq(pParse, pLeft);
-  }else if( pRight && (pRight->flags & EP_Collate)!=0 ){
-    pColl = tdsqlite3ExprCollSeq(pParse, pRight);
-  }else{
-    pColl = tdsqlite3ExprCollSeq(pParse, pLeft);
-    if( !pColl ){
-      pColl = tdsqlite3ExprCollSeq(pParse, pRight);
-    }
-  }
-  return pColl;
-}
-
-/* Expresssion p is a comparison operator.  Return a collation sequence
-** appropriate for the comparison operator.
-**
-** This is normally just a wrapper around tdsqlite3BinaryCompareCollSeq().
-** However, if the OP_Commuted flag is set, then the order of the operands
-** is reversed in the tdsqlite3BinaryCompareCollSeq() call so that the
-** correct collating sequence is found.
-*/
-SQLITE_PRIVATE CollSeq *tdsqlite3ExprCompareCollSeq(Parse *pParse, Expr *p){
-  if( ExprHasProperty(p, EP_Commuted) ){
-    return tdsqlite3BinaryCompareCollSeq(pParse, p->pRight, p->pLeft);
-  }else{
-    return tdsqlite3BinaryCompareCollSeq(pParse, p->pLeft, p->pRight);
-  }
-}
-
-/*
-** Generate code for a comparison operator.
-*/
-static int codeCompare(
-  Parse *pParse,    /* The parsing (and code generating) context */
-  Expr *pLeft,      /* The left operand */
-  Expr *pRight,     /* The right operand */
-  int opcode,       /* The comparison opcode */
-  int in1, int in2, /* Register holding operands */
-  int dest,         /* Jump here if true.  */
-  int jumpIfNull,   /* If true, jump if either operand is NULL */
-  int isCommuted    /* The comparison has been commuted */
-){
-  int p5;
-  int addr;
-  CollSeq *p4;
-
-  if( pParse->nErr ) return 0;
-  if( isCommuted ){
-    p4 = tdsqlite3BinaryCompareCollSeq(pParse, pRight, pLeft);
-  }else{
-    p4 = tdsqlite3BinaryCompareCollSeq(pParse, pLeft, pRight);
-  }
-  p5 = binaryCompareP5(pLeft, pRight, jumpIfNull);
-  addr = tdsqlite3VdbeAddOp4(pParse->pVdbe, opcode, in2, dest, in1,
-                           (void*)p4, P4_COLLSEQ);
-  tdsqlite3VdbeChangeP5(pParse->pVdbe, (u8)p5);
-  return addr;
-}
-
-/*
-** Return true if expression pExpr is a vector, or false otherwise.
-**
-** A vector is defined as any expression that results in two or more
-** columns of result.  Every TK_VECTOR node is an vector because the
-** parser will not generate a TK_VECTOR with fewer than two entries.
-** But a TK_SELECT might be either a vector or a scalar. It is only
-** considered a vector if it has two or more result columns.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprIsVector(Expr *pExpr){
-  return tdsqlite3ExprVectorSize(pExpr)>1;
-}
-
-/*
-** If the expression passed as the only argument is of type TK_VECTOR 
-** return the number of expressions in the vector. Or, if the expression
-** is a sub-select, return the number of columns in the sub-select. For
-** any other type of expression, return 1.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprVectorSize(Expr *pExpr){
-  u8 op = pExpr->op;
-  if( op==TK_REGISTER ) op = pExpr->op2;
-  if( op==TK_VECTOR ){
-    return pExpr->x.pList->nExpr;
-  }else if( op==TK_SELECT ){
-    return pExpr->x.pSelect->pEList->nExpr;
-  }else{
-    return 1;
-  }
-}
-
-/*
-** Return a pointer to a subexpression of pVector that is the i-th
-** column of the vector (numbered starting with 0).  The caller must
-** ensure that i is within range.
-**
-** If pVector is really a scalar (and "scalar" here includes subqueries
-** that return a single column!) then return pVector unmodified.
-**
-** pVector retains ownership of the returned subexpression.
-**
-** If the vector is a (SELECT ...) then the expression returned is
-** just the expression for the i-th term of the result set, and may
-** not be ready for evaluation because the table cursor has not yet
-** been positioned.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3VectorFieldSubexpr(Expr *pVector, int i){
-  assert( i<tdsqlite3ExprVectorSize(pVector) );
-  if( tdsqlite3ExprIsVector(pVector) ){
-    assert( pVector->op2==0 || pVector->op==TK_REGISTER );
-    if( pVector->op==TK_SELECT || pVector->op2==TK_SELECT ){
-      return pVector->x.pSelect->pEList->a[i].pExpr;
-    }else{
-      return pVector->x.pList->a[i].pExpr;
-    }
-  }
-  return pVector;
-}
-
-/*
-** Compute and return a new Expr object which when passed to
-** tdsqlite3ExprCode() will generate all necessary code to compute
-** the iField-th column of the vector expression pVector.
-**
-** It is ok for pVector to be a scalar (as long as iField==0).  
-** In that case, this routine works like tdsqlite3ExprDup().
-**
-** The caller owns the returned Expr object and is responsible for
-** ensuring that the returned value eventually gets freed.
-**
-** The caller retains ownership of pVector.  If pVector is a TK_SELECT,
-** then the returned object will reference pVector and so pVector must remain
-** valid for the life of the returned object.  If pVector is a TK_VECTOR
-** or a scalar expression, then it can be deleted as soon as this routine
-** returns.
-**
-** A trick to cause a TK_SELECT pVector to be deleted together with
-** the returned Expr object is to attach the pVector to the pRight field
-** of the returned TK_SELECT_COLUMN Expr object.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprForVectorField(
-  Parse *pParse,       /* Parsing context */
-  Expr *pVector,       /* The vector.  List of expressions or a sub-SELECT */
-  int iField           /* Which column of the vector to return */
-){
-  Expr *pRet;
-  if( pVector->op==TK_SELECT ){
-    assert( pVector->flags & EP_xIsSelect );
-    /* The TK_SELECT_COLUMN Expr node:
-    **
-    ** pLeft:           pVector containing TK_SELECT.  Not deleted.
-    ** pRight:          not used.  But recursively deleted.
-    ** iColumn:         Index of a column in pVector
-    ** iTable:          0 or the number of columns on the LHS of an assignment
-    ** pLeft->iTable:   First in an array of register holding result, or 0
-    **                  if the result is not yet computed.
-    **
-    ** tdsqlite3ExprDelete() specifically skips the recursive delete of
-    ** pLeft on TK_SELECT_COLUMN nodes.  But pRight is followed, so pVector
-    ** can be attached to pRight to cause this node to take ownership of
-    ** pVector.  Typically there will be multiple TK_SELECT_COLUMN nodes
-    ** with the same pLeft pointer to the pVector, but only one of them
-    ** will own the pVector.
-    */
-    pRet = tdsqlite3PExpr(pParse, TK_SELECT_COLUMN, 0, 0);
-    if( pRet ){
-      pRet->iColumn = iField;
-      pRet->pLeft = pVector;
-    }
-    assert( pRet==0 || pRet->iTable==0 );
-  }else{
-    if( pVector->op==TK_VECTOR ) pVector = pVector->x.pList->a[iField].pExpr;
-    pRet = tdsqlite3ExprDup(pParse->db, pVector, 0);
-    tdsqlite3RenameTokenRemap(pParse, pRet, pVector);
-  }
-  return pRet;
-}
-
-/*
-** If expression pExpr is of type TK_SELECT, generate code to evaluate
-** it. Return the register in which the result is stored (or, if the 
-** sub-select returns more than one column, the first in an array
-** of registers in which the result is stored).
-**
-** If pExpr is not a TK_SELECT expression, return 0.
-*/
-static int exprCodeSubselect(Parse *pParse, Expr *pExpr){
-  int reg = 0;
-#ifndef SQLITE_OMIT_SUBQUERY
-  if( pExpr->op==TK_SELECT ){
-    reg = tdsqlite3CodeSubselect(pParse, pExpr);
-  }
-#endif
-  return reg;
-}
-
-/*
-** Argument pVector points to a vector expression - either a TK_VECTOR
-** or TK_SELECT that returns more than one column. This function returns
-** the register number of a register that contains the value of
-** element iField of the vector.
-**
-** If pVector is a TK_SELECT expression, then code for it must have 
-** already been generated using the exprCodeSubselect() routine. In this
-** case parameter regSelect should be the first in an array of registers
-** containing the results of the sub-select. 
-**
-** If pVector is of type TK_VECTOR, then code for the requested field
-** is generated. In this case (*pRegFree) may be set to the number of
-** a temporary register to be freed by the caller before returning.
-**
-** Before returning, output parameter (*ppExpr) is set to point to the
-** Expr object corresponding to element iElem of the vector.
-*/
-static int exprVectorRegister(
-  Parse *pParse,                  /* Parse context */
-  Expr *pVector,                  /* Vector to extract element from */
-  int iField,                     /* Field to extract from pVector */
-  int regSelect,                  /* First in array of registers */
-  Expr **ppExpr,                  /* OUT: Expression element */
-  int *pRegFree                   /* OUT: Temp register to free */
-){
-  u8 op = pVector->op;
-  assert( op==TK_VECTOR || op==TK_REGISTER || op==TK_SELECT );
-  if( op==TK_REGISTER ){
-    *ppExpr = tdsqlite3VectorFieldSubexpr(pVector, iField);
-    return pVector->iTable+iField;
-  }
-  if( op==TK_SELECT ){
-    *ppExpr = pVector->x.pSelect->pEList->a[iField].pExpr;
-     return regSelect+iField;
-  }
-  *ppExpr = pVector->x.pList->a[iField].pExpr;
-  return tdsqlite3ExprCodeTemp(pParse, *ppExpr, pRegFree);
-}
-
-/*
-** Expression pExpr is a comparison between two vector values. Compute
-** the result of the comparison (1, 0, or NULL) and write that
-** result into register dest.
-**
-** The caller must satisfy the following preconditions:
-**
-**    if pExpr->op==TK_IS:      op==TK_EQ and p5==SQLITE_NULLEQ
-**    if pExpr->op==TK_ISNOT:   op==TK_NE and p5==SQLITE_NULLEQ
-**    otherwise:                op==pExpr->op and p5==0
-*/
-static void codeVectorCompare(
-  Parse *pParse,        /* Code generator context */
-  Expr *pExpr,          /* The comparison operation */
-  int dest,             /* Write results into this register */
-  u8 op,                /* Comparison operator */
-  u8 p5                 /* SQLITE_NULLEQ or zero */
-){
-  Vdbe *v = pParse->pVdbe;
-  Expr *pLeft = pExpr->pLeft;
-  Expr *pRight = pExpr->pRight;
-  int nLeft = tdsqlite3ExprVectorSize(pLeft);
-  int i;
-  int regLeft = 0;
-  int regRight = 0;
-  u8 opx = op;
-  int addrDone = tdsqlite3VdbeMakeLabel(pParse);
-  int isCommuted = ExprHasProperty(pExpr,EP_Commuted);
-
-  if( pParse->nErr ) return;
-  if( nLeft!=tdsqlite3ExprVectorSize(pRight) ){
-    tdsqlite3ErrorMsg(pParse, "row value misused");
-    return;
-  }
-  assert( pExpr->op==TK_EQ || pExpr->op==TK_NE 
-       || pExpr->op==TK_IS || pExpr->op==TK_ISNOT 
-       || pExpr->op==TK_LT || pExpr->op==TK_GT 
-       || pExpr->op==TK_LE || pExpr->op==TK_GE 
-  );
-  assert( pExpr->op==op || (pExpr->op==TK_IS && op==TK_EQ)
-            || (pExpr->op==TK_ISNOT && op==TK_NE) );
-  assert( p5==0 || pExpr->op!=op );
-  assert( p5==SQLITE_NULLEQ || pExpr->op==op );
-
-  p5 |= SQLITE_STOREP2;
-  if( opx==TK_LE ) opx = TK_LT;
-  if( opx==TK_GE ) opx = TK_GT;
-
-  regLeft = exprCodeSubselect(pParse, pLeft);
-  regRight = exprCodeSubselect(pParse, pRight);
-
-  for(i=0; 1 /*Loop exits by "break"*/; i++){
-    int regFree1 = 0, regFree2 = 0;
-    Expr *pL, *pR; 
-    int r1, r2;
-    assert( i>=0 && i<nLeft );
-    r1 = exprVectorRegister(pParse, pLeft, i, regLeft, &pL, &regFree1);
-    r2 = exprVectorRegister(pParse, pRight, i, regRight, &pR, &regFree2);
-    codeCompare(pParse, pL, pR, opx, r1, r2, dest, p5, isCommuted);
-    testcase(op==OP_Lt); VdbeCoverageIf(v,op==OP_Lt);
-    testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
-    testcase(op==OP_Gt); VdbeCoverageIf(v,op==OP_Gt);
-    testcase(op==OP_Ge); VdbeCoverageIf(v,op==OP_Ge);
-    testcase(op==OP_Eq); VdbeCoverageIf(v,op==OP_Eq);
-    testcase(op==OP_Ne); VdbeCoverageIf(v,op==OP_Ne);
-    tdsqlite3ReleaseTempReg(pParse, regFree1);
-    tdsqlite3ReleaseTempReg(pParse, regFree2);
-    if( i==nLeft-1 ){
-      break;
-    }
-    if( opx==TK_EQ ){
-      tdsqlite3VdbeAddOp2(v, OP_IfNot, dest, addrDone); VdbeCoverage(v);
-      p5 |= SQLITE_KEEPNULL;
-    }else if( opx==TK_NE ){
-      tdsqlite3VdbeAddOp2(v, OP_If, dest, addrDone); VdbeCoverage(v);
-      p5 |= SQLITE_KEEPNULL;
-    }else{
-      assert( op==TK_LT || op==TK_GT || op==TK_LE || op==TK_GE );
-      tdsqlite3VdbeAddOp2(v, OP_ElseNotEq, 0, addrDone);
-      VdbeCoverageIf(v, op==TK_LT);
-      VdbeCoverageIf(v, op==TK_GT);
-      VdbeCoverageIf(v, op==TK_LE);
-      VdbeCoverageIf(v, op==TK_GE);
-      if( i==nLeft-2 ) opx = op;
-    }
-  }
-  tdsqlite3VdbeResolveLabel(v, addrDone);
-}
-
-#if SQLITE_MAX_EXPR_DEPTH>0
-/*
-** Check that argument nHeight is less than or equal to the maximum
-** expression depth allowed. If it is not, leave an error message in
-** pParse.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCheckHeight(Parse *pParse, int nHeight){
-  int rc = SQLITE_OK;
-  int mxHeight = pParse->db->aLimit[SQLITE_LIMIT_EXPR_DEPTH];
-  if( nHeight>mxHeight ){
-    tdsqlite3ErrorMsg(pParse, 
-       "Expression tree is too large (maximum depth %d)", mxHeight
-    );
-    rc = SQLITE_ERROR;
-  }
-  return rc;
-}
-
-/* The following three functions, heightOfExpr(), heightOfExprList()
-** and heightOfSelect(), are used to determine the maximum height
-** of any expression tree referenced by the structure passed as the
-** first argument.
-**
-** If this maximum height is greater than the current value pointed
-** to by pnHeight, the second parameter, then set *pnHeight to that
-** value.
-*/
-static void heightOfExpr(Expr *p, int *pnHeight){
-  if( p ){
-    if( p->nHeight>*pnHeight ){
-      *pnHeight = p->nHeight;
-    }
-  }
-}
-static void heightOfExprList(ExprList *p, int *pnHeight){
-  if( p ){
-    int i;
-    for(i=0; i<p->nExpr; i++){
-      heightOfExpr(p->a[i].pExpr, pnHeight);
-    }
-  }
-}
-static void heightOfSelect(Select *pSelect, int *pnHeight){
-  Select *p;
-  for(p=pSelect; p; p=p->pPrior){
-    heightOfExpr(p->pWhere, pnHeight);
-    heightOfExpr(p->pHaving, pnHeight);
-    heightOfExpr(p->pLimit, pnHeight);
-    heightOfExprList(p->pEList, pnHeight);
-    heightOfExprList(p->pGroupBy, pnHeight);
-    heightOfExprList(p->pOrderBy, pnHeight);
-  }
-}
-
-/*
-** Set the Expr.nHeight variable in the structure passed as an 
-** argument. An expression with no children, Expr.pList or 
-** Expr.pSelect member has a height of 1. Any other expression
-** has a height equal to the maximum height of any other 
-** referenced Expr plus one.
-**
-** Also propagate EP_Propagate flags up from Expr.x.pList to Expr.flags,
-** if appropriate.
-*/
-static void exprSetHeight(Expr *p){
-  int nHeight = 0;
-  heightOfExpr(p->pLeft, &nHeight);
-  heightOfExpr(p->pRight, &nHeight);
-  if( ExprHasProperty(p, EP_xIsSelect) ){
-    heightOfSelect(p->x.pSelect, &nHeight);
-  }else if( p->x.pList ){
-    heightOfExprList(p->x.pList, &nHeight);
-    p->flags |= EP_Propagate & tdsqlite3ExprListFlags(p->x.pList);
-  }
-  p->nHeight = nHeight + 1;
-}
-
-/*
-** Set the Expr.nHeight variable using the exprSetHeight() function. If
-** the height is greater than the maximum allowed expression depth,
-** leave an error in pParse.
-**
-** Also propagate all EP_Propagate flags from the Expr.x.pList into
-** Expr.flags. 
-*/
-SQLITE_PRIVATE void tdsqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p){
-  if( pParse->nErr ) return;
-  exprSetHeight(p);
-  tdsqlite3ExprCheckHeight(pParse, p->nHeight);
-}
-
-/*
-** Return the maximum height of any expression tree referenced
-** by the select statement passed as an argument.
-*/
-SQLITE_PRIVATE int tdsqlite3SelectExprHeight(Select *p){
-  int nHeight = 0;
-  heightOfSelect(p, &nHeight);
-  return nHeight;
-}
-#else /* ABOVE:  Height enforcement enabled.  BELOW: Height enforcement off */
-/*
-** Propagate all EP_Propagate flags from the Expr.x.pList into
-** Expr.flags. 
-*/
-SQLITE_PRIVATE void tdsqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p){
-  if( p && p->x.pList && !ExprHasProperty(p, EP_xIsSelect) ){
-    p->flags |= EP_Propagate & tdsqlite3ExprListFlags(p->x.pList);
-  }
-}
-#define exprSetHeight(y)
-#endif /* SQLITE_MAX_EXPR_DEPTH>0 */
-
-/*
-** This routine is the core allocator for Expr nodes.
-**
-** Construct a new expression node and return a pointer to it.  Memory
-** for this node and for the pToken argument is a single allocation
-** obtained from tdsqlite3DbMalloc().  The calling function
-** is responsible for making sure the node eventually gets freed.
-**
-** If dequote is true, then the token (if it exists) is dequoted.
-** If dequote is false, no dequoting is performed.  The deQuote
-** parameter is ignored if pToken is NULL or if the token does not
-** appear to be quoted.  If the quotes were of the form "..." (double-quotes)
-** then the EP_DblQuoted flag is set on the expression node.
-**
-** Special case:  If op==TK_INTEGER and pToken points to a string that
-** can be translated into a 32-bit integer, then the token is not
-** stored in u.zToken.  Instead, the integer values is written
-** into u.iValue and the EP_IntValue flag is set.  No extra storage
-** is allocated to hold the integer text and the dequote flag is ignored.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprAlloc(
-  tdsqlite3 *db,            /* Handle for tdsqlite3DbMallocRawNN() */
-  int op,                 /* Expression opcode */
-  const Token *pToken,    /* Token argument.  Might be NULL */
-  int dequote             /* True to dequote */
-){
-  Expr *pNew;
-  int nExtra = 0;
-  int iValue = 0;
-
-  assert( db!=0 );
-  if( pToken ){
-    if( op!=TK_INTEGER || pToken->z==0
-          || tdsqlite3GetInt32(pToken->z, &iValue)==0 ){
-      nExtra = pToken->n+1;
-      assert( iValue>=0 );
-    }
-  }
-  pNew = tdsqlite3DbMallocRawNN(db, sizeof(Expr)+nExtra);
-  if( pNew ){
-    memset(pNew, 0, sizeof(Expr));
-    pNew->op = (u8)op;
-    pNew->iAgg = -1;
-    if( pToken ){
-      if( nExtra==0 ){
-        pNew->flags |= EP_IntValue|EP_Leaf|(iValue?EP_IsTrue:EP_IsFalse);
-        pNew->u.iValue = iValue;
-      }else{
-        pNew->u.zToken = (char*)&pNew[1];
-        assert( pToken->z!=0 || pToken->n==0 );
-        if( pToken->n ) memcpy(pNew->u.zToken, pToken->z, pToken->n);
-        pNew->u.zToken[pToken->n] = 0;
-        if( dequote && tdsqlite3Isquote(pNew->u.zToken[0]) ){
-          tdsqlite3DequoteExpr(pNew);
-        }
-      }
-    }
-#if SQLITE_MAX_EXPR_DEPTH>0
-    pNew->nHeight = 1;
-#endif  
-  }
-  return pNew;
-}
-
-/*
-** Allocate a new expression node from a zero-terminated token that has
-** already been dequoted.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3Expr(
-  tdsqlite3 *db,            /* Handle for tdsqlite3DbMallocZero() (may be null) */
-  int op,                 /* Expression opcode */
-  const char *zToken      /* Token argument.  Might be NULL */
-){
-  Token x;
-  x.z = zToken;
-  x.n = tdsqlite3Strlen30(zToken);
-  return tdsqlite3ExprAlloc(db, op, &x, 0);
-}
-
-/*
-** Attach subtrees pLeft and pRight to the Expr node pRoot.
-**
-** If pRoot==NULL that means that a memory allocation error has occurred.
-** In that case, delete the subtrees pLeft and pRight.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprAttachSubtrees(
-  tdsqlite3 *db,
-  Expr *pRoot,
-  Expr *pLeft,
-  Expr *pRight
-){
-  if( pRoot==0 ){
-    assert( db->mallocFailed );
-    tdsqlite3ExprDelete(db, pLeft);
-    tdsqlite3ExprDelete(db, pRight);
-  }else{
-    if( pRight ){
-      pRoot->pRight = pRight;
-      pRoot->flags |= EP_Propagate & pRight->flags;
-    }
-    if( pLeft ){
-      pRoot->pLeft = pLeft;
-      pRoot->flags |= EP_Propagate & pLeft->flags;
-    }
-    exprSetHeight(pRoot);
-  }
-}
-
-/*
-** Allocate an Expr node which joins as many as two subtrees.
-**
-** One or both of the subtrees can be NULL.  Return a pointer to the new
-** Expr node.  Or, if an OOM error occurs, set pParse->db->mallocFailed,
-** free the subtrees and return NULL.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3PExpr(
-  Parse *pParse,          /* Parsing context */
-  int op,                 /* Expression opcode */
-  Expr *pLeft,            /* Left operand */
-  Expr *pRight            /* Right operand */
-){
-  Expr *p;
-  p = tdsqlite3DbMallocRawNN(pParse->db, sizeof(Expr));
-  if( p ){
-    memset(p, 0, sizeof(Expr));
-    p->op = op & 0xff;
-    p->iAgg = -1;
-    tdsqlite3ExprAttachSubtrees(pParse->db, p, pLeft, pRight);
-    tdsqlite3ExprCheckHeight(pParse, p->nHeight);
-  }else{
-    tdsqlite3ExprDelete(pParse->db, pLeft);
-    tdsqlite3ExprDelete(pParse->db, pRight);
-  }
-  return p;
-}
-
-/*
-** Add pSelect to the Expr.x.pSelect field.  Or, if pExpr is NULL (due
-** do a memory allocation failure) then delete the pSelect object.
-*/
-SQLITE_PRIVATE void tdsqlite3PExprAddSelect(Parse *pParse, Expr *pExpr, Select *pSelect){
-  if( pExpr ){
-    pExpr->x.pSelect = pSelect;
-    ExprSetProperty(pExpr, EP_xIsSelect|EP_Subquery);
-    tdsqlite3ExprSetHeightAndFlags(pParse, pExpr);
-  }else{
-    assert( pParse->db->mallocFailed );
-    tdsqlite3SelectDelete(pParse->db, pSelect);
-  }
-}
-
-
-/*
-** Join two expressions using an AND operator.  If either expression is
-** NULL, then just return the other expression.
-**
-** If one side or the other of the AND is known to be false, then instead
-** of returning an AND expression, just return a constant expression with
-** a value of false.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprAnd(Parse *pParse, Expr *pLeft, Expr *pRight){
-  tdsqlite3 *db = pParse->db;
-  if( pLeft==0  ){
-    return pRight;
-  }else if( pRight==0 ){
-    return pLeft;
-  }else if( (ExprAlwaysFalse(pLeft) || ExprAlwaysFalse(pRight)) 
-         && !IN_RENAME_OBJECT
-  ){
-    tdsqlite3ExprDelete(db, pLeft);
-    tdsqlite3ExprDelete(db, pRight);
-    return tdsqlite3Expr(db, TK_INTEGER, "0");
-  }else{
-    return tdsqlite3PExpr(pParse, TK_AND, pLeft, pRight);
-  }
-}
-
-/*
-** Construct a new expression node for a function with multiple
-** arguments.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprFunction(
-  Parse *pParse,        /* Parsing context */
-  ExprList *pList,      /* Argument list */
-  Token *pToken,        /* Name of the function */
-  int eDistinct         /* SF_Distinct or SF_ALL or 0 */
-){
-  Expr *pNew;
-  tdsqlite3 *db = pParse->db;
-  assert( pToken );
-  pNew = tdsqlite3ExprAlloc(db, TK_FUNCTION, pToken, 1);
-  if( pNew==0 ){
-    tdsqlite3ExprListDelete(db, pList); /* Avoid memory leak when malloc fails */
-    return 0;
-  }
-  if( pList && pList->nExpr > pParse->db->aLimit[SQLITE_LIMIT_FUNCTION_ARG] ){
-    tdsqlite3ErrorMsg(pParse, "too many arguments on function %T", pToken);
-  }
-  pNew->x.pList = pList;
-  ExprSetProperty(pNew, EP_HasFunc);
-  assert( !ExprHasProperty(pNew, EP_xIsSelect) );
-  tdsqlite3ExprSetHeightAndFlags(pParse, pNew);
-  if( eDistinct==SF_Distinct ) ExprSetProperty(pNew, EP_Distinct);
-  return pNew;
-}
-
-/*
-** Check to see if a function is usable according to current access
-** rules:
-**
-**    SQLITE_FUNC_DIRECT    -     Only usable from top-level SQL
-**
-**    SQLITE_FUNC_UNSAFE    -     Usable if TRUSTED_SCHEMA or from
-**                                top-level SQL
-**
-** If the function is not usable, create an error.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprFunctionUsable(
-  Parse *pParse,         /* Parsing and code generating context */
-  Expr *pExpr,           /* The function invocation */
-  FuncDef *pDef          /* The function being invoked */
-){
-  assert( !IN_RENAME_OBJECT );
-  assert( (pDef->funcFlags & (SQLITE_FUNC_DIRECT|SQLITE_FUNC_UNSAFE))!=0 );
-  if( ExprHasProperty(pExpr, EP_FromDDL) ){
-    if( (pDef->funcFlags & SQLITE_FUNC_DIRECT)!=0
-     || (pParse->db->flags & SQLITE_TrustedSchema)==0
-    ){
-      /* Functions prohibited in triggers and views if:
-      **     (1) tagged with SQLITE_DIRECTONLY
-      **     (2) not tagged with SQLITE_INNOCUOUS (which means it
-      **         is tagged with SQLITE_FUNC_UNSAFE) and 
-      **         SQLITE_DBCONFIG_TRUSTED_SCHEMA is off (meaning
-      **         that the schema is possibly tainted).
-      */
-      tdsqlite3ErrorMsg(pParse, "unsafe use of %s()", pDef->zName);
-    }
-  }
-}
-
-/*
-** Assign a variable number to an expression that encodes a wildcard
-** in the original SQL statement.  
-**
-** Wildcards consisting of a single "?" are assigned the next sequential
-** variable number.
-**
-** Wildcards of the form "?nnn" are assigned the number "nnn".  We make
-** sure "nnn" is not too big to avoid a denial of service attack when
-** the SQL statement comes from an external source.
-**
-** Wildcards of the form ":aaa", "@aaa", or "$aaa" are assigned the same number
-** as the previous instance of the same wildcard.  Or if this is the first
-** instance of the wildcard, the next sequential variable number is
-** assigned.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprAssignVarNumber(Parse *pParse, Expr *pExpr, u32 n){
-  tdsqlite3 *db = pParse->db;
-  const char *z;
-  ynVar x;
-
-  if( pExpr==0 ) return;
-  assert( !ExprHasProperty(pExpr, EP_IntValue|EP_Reduced|EP_TokenOnly) );
-  z = pExpr->u.zToken;
-  assert( z!=0 );
-  assert( z[0]!=0 );
-  assert( n==(u32)tdsqlite3Strlen30(z) );
-  if( z[1]==0 ){
-    /* Wildcard of the form "?".  Assign the next variable number */
-    assert( z[0]=='?' );
-    x = (ynVar)(++pParse->nVar);
-  }else{
-    int doAdd = 0;
-    if( z[0]=='?' ){
-      /* Wildcard of the form "?nnn".  Convert "nnn" to an integer and
-      ** use it as the variable number */
-      i64 i;
-      int bOk;
-      if( n==2 ){ /*OPTIMIZATION-IF-TRUE*/
-        i = z[1]-'0';  /* The common case of ?N for a single digit N */
-        bOk = 1;
-      }else{
-        bOk = 0==tdsqlite3Atoi64(&z[1], &i, n-1, SQLITE_UTF8);
-      }
-      testcase( i==0 );
-      testcase( i==1 );
-      testcase( i==db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER]-1 );
-      testcase( i==db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] );
-      if( bOk==0 || i<1 || i>db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] ){
-        tdsqlite3ErrorMsg(pParse, "variable number must be between ?1 and ?%d",
-            db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER]);
-        return;
-      }
-      x = (ynVar)i;
-      if( x>pParse->nVar ){
-        pParse->nVar = (int)x;
-        doAdd = 1;
-      }else if( tdsqlite3VListNumToName(pParse->pVList, x)==0 ){
-        doAdd = 1;
-      }
-    }else{
-      /* Wildcards like ":aaa", "$aaa" or "@aaa".  Reuse the same variable
-      ** number as the prior appearance of the same name, or if the name
-      ** has never appeared before, reuse the same variable number
-      */
-      x = (ynVar)tdsqlite3VListNameToNum(pParse->pVList, z, n);
-      if( x==0 ){
-        x = (ynVar)(++pParse->nVar);
-        doAdd = 1;
-      }
-    }
-    if( doAdd ){
-      pParse->pVList = tdsqlite3VListAdd(db, pParse->pVList, z, n, x);
-    }
-  }
-  pExpr->iColumn = x;
-  if( x>db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] ){
-    tdsqlite3ErrorMsg(pParse, "too many SQL variables");
-  }
-}
-
-/*
-** Recursively delete an expression tree.
-*/
-static SQLITE_NOINLINE void tdsqlite3ExprDeleteNN(tdsqlite3 *db, Expr *p){
-  assert( p!=0 );
-  /* Sanity check: Assert that the IntValue is non-negative if it exists */
-  assert( !ExprHasProperty(p, EP_IntValue) || p->u.iValue>=0 );
-
-  assert( !ExprHasProperty(p, EP_WinFunc) || p->y.pWin!=0 || db->mallocFailed );
-  assert( p->op!=TK_FUNCTION || ExprHasProperty(p, EP_TokenOnly|EP_Reduced)
-          || p->y.pWin==0 || ExprHasProperty(p, EP_WinFunc) );
-#ifdef SQLITE_DEBUG
-  if( ExprHasProperty(p, EP_Leaf) && !ExprHasProperty(p, EP_TokenOnly) ){
-    assert( p->pLeft==0 );
-    assert( p->pRight==0 );
-    assert( p->x.pSelect==0 );
-  }
-#endif
-  if( !ExprHasProperty(p, (EP_TokenOnly|EP_Leaf)) ){
-    /* The Expr.x union is never used at the same time as Expr.pRight */
-    assert( p->x.pList==0 || p->pRight==0 );
-    if( p->pLeft && p->op!=TK_SELECT_COLUMN ) tdsqlite3ExprDeleteNN(db, p->pLeft);
-    if( p->pRight ){
-      assert( !ExprHasProperty(p, EP_WinFunc) );
-      tdsqlite3ExprDeleteNN(db, p->pRight);
-    }else if( ExprHasProperty(p, EP_xIsSelect) ){
-      assert( !ExprHasProperty(p, EP_WinFunc) );
-      tdsqlite3SelectDelete(db, p->x.pSelect);
-    }else{
-      tdsqlite3ExprListDelete(db, p->x.pList);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      if( ExprHasProperty(p, EP_WinFunc) ){
-        tdsqlite3WindowDelete(db, p->y.pWin);
-      }
-#endif
-    }
-  }
-  if( ExprHasProperty(p, EP_MemToken) ) tdsqlite3DbFree(db, p->u.zToken);
-  if( !ExprHasProperty(p, EP_Static) ){
-    tdsqlite3DbFreeNN(db, p);
-  }
-}
-SQLITE_PRIVATE void tdsqlite3ExprDelete(tdsqlite3 *db, Expr *p){
-  if( p ) tdsqlite3ExprDeleteNN(db, p);
-}
-
-/* Invoke tdsqlite3RenameExprUnmap() and tdsqlite3ExprDelete() on the
-** expression.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprUnmapAndDelete(Parse *pParse, Expr *p){
-  if( p ){
-    if( IN_RENAME_OBJECT ){
-      tdsqlite3RenameExprUnmap(pParse, p);
-    }
-    tdsqlite3ExprDeleteNN(pParse->db, p);
-  }
-}
-
-/*
-** Return the number of bytes allocated for the expression structure 
-** passed as the first argument. This is always one of EXPR_FULLSIZE,
-** EXPR_REDUCEDSIZE or EXPR_TOKENONLYSIZE.
-*/
-static int exprStructSize(Expr *p){
-  if( ExprHasProperty(p, EP_TokenOnly) ) return EXPR_TOKENONLYSIZE;
-  if( ExprHasProperty(p, EP_Reduced) ) return EXPR_REDUCEDSIZE;
-  return EXPR_FULLSIZE;
-}
-
-/*
-** The dupedExpr*Size() routines each return the number of bytes required
-** to store a copy of an expression or expression tree.  They differ in
-** how much of the tree is measured.
-**
-**     dupedExprStructSize()     Size of only the Expr structure 
-**     dupedExprNodeSize()       Size of Expr + space for token
-**     dupedExprSize()           Expr + token + subtree components
-**
-***************************************************************************
-**
-** The dupedExprStructSize() function returns two values OR-ed together:  
-** (1) the space required for a copy of the Expr structure only and 
-** (2) the EP_xxx flags that indicate what the structure size should be.
-** The return values is always one of:
-**
-**      EXPR_FULLSIZE
-**      EXPR_REDUCEDSIZE   | EP_Reduced
-**      EXPR_TOKENONLYSIZE | EP_TokenOnly
-**
-** The size of the structure can be found by masking the return value
-** of this routine with 0xfff.  The flags can be found by masking the
-** return value with EP_Reduced|EP_TokenOnly.
-**
-** Note that with flags==EXPRDUP_REDUCE, this routines works on full-size
-** (unreduced) Expr objects as they or originally constructed by the parser.
-** During expression analysis, extra information is computed and moved into
-** later parts of the Expr object and that extra information might get chopped
-** off if the expression is reduced.  Note also that it does not work to
-** make an EXPRDUP_REDUCE copy of a reduced expression.  It is only legal
-** to reduce a pristine expression tree from the parser.  The implementation
-** of dupedExprStructSize() contain multiple assert() statements that attempt
-** to enforce this constraint.
-*/
-static int dupedExprStructSize(Expr *p, int flags){
-  int nSize;
-  assert( flags==EXPRDUP_REDUCE || flags==0 ); /* Only one flag value allowed */
-  assert( EXPR_FULLSIZE<=0xfff );
-  assert( (0xfff & (EP_Reduced|EP_TokenOnly))==0 );
-  if( 0==flags || p->op==TK_SELECT_COLUMN 
-#ifndef SQLITE_OMIT_WINDOWFUNC
-   || ExprHasProperty(p, EP_WinFunc)
-#endif
-  ){
-    nSize = EXPR_FULLSIZE;
-  }else{
-    assert( !ExprHasProperty(p, EP_TokenOnly|EP_Reduced) );
-    assert( !ExprHasProperty(p, EP_FromJoin) ); 
-    assert( !ExprHasProperty(p, EP_MemToken) );
-    assert( !ExprHasProperty(p, EP_NoReduce) );
-    if( p->pLeft || p->x.pList ){
-      nSize = EXPR_REDUCEDSIZE | EP_Reduced;
-    }else{
-      assert( p->pRight==0 );
-      nSize = EXPR_TOKENONLYSIZE | EP_TokenOnly;
-    }
-  }
-  return nSize;
-}
-
-/*
-** This function returns the space in bytes required to store the copy 
-** of the Expr structure and a copy of the Expr.u.zToken string (if that
-** string is defined.)
-*/
-static int dupedExprNodeSize(Expr *p, int flags){
-  int nByte = dupedExprStructSize(p, flags) & 0xfff;
-  if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){
-    nByte += tdsqlite3Strlen30NN(p->u.zToken)+1;
-  }
-  return ROUND8(nByte);
-}
-
-/*
-** Return the number of bytes required to create a duplicate of the 
-** expression passed as the first argument. The second argument is a
-** mask containing EXPRDUP_XXX flags.
-**
-** The value returned includes space to create a copy of the Expr struct
-** itself and the buffer referred to by Expr.u.zToken, if any.
-**
-** If the EXPRDUP_REDUCE flag is set, then the return value includes 
-** space to duplicate all Expr nodes in the tree formed by Expr.pLeft 
-** and Expr.pRight variables (but not for any structures pointed to or 
-** descended from the Expr.x.pList or Expr.x.pSelect variables).
-*/
-static int dupedExprSize(Expr *p, int flags){
-  int nByte = 0;
-  if( p ){
-    nByte = dupedExprNodeSize(p, flags);
-    if( flags&EXPRDUP_REDUCE ){
-      nByte += dupedExprSize(p->pLeft, flags) + dupedExprSize(p->pRight, flags);
-    }
-  }
-  return nByte;
-}
-
-/*
-** This function is similar to tdsqlite3ExprDup(), except that if pzBuffer 
-** is not NULL then *pzBuffer is assumed to point to a buffer large enough 
-** to store the copy of expression p, the copies of p->u.zToken
-** (if applicable), and the copies of the p->pLeft and p->pRight expressions,
-** if any. Before returning, *pzBuffer is set to the first byte past the
-** portion of the buffer copied into by this function.
-*/
-static Expr *exprDup(tdsqlite3 *db, Expr *p, int dupFlags, u8 **pzBuffer){
-  Expr *pNew;           /* Value to return */
-  u8 *zAlloc;           /* Memory space from which to build Expr object */
-  u32 staticFlag;       /* EP_Static if space not obtained from malloc */
-
-  assert( db!=0 );
-  assert( p );
-  assert( dupFlags==0 || dupFlags==EXPRDUP_REDUCE );
-  assert( pzBuffer==0 || dupFlags==EXPRDUP_REDUCE );
-
-  /* Figure out where to write the new Expr structure. */
-  if( pzBuffer ){
-    zAlloc = *pzBuffer;
-    staticFlag = EP_Static;
-  }else{
-    zAlloc = tdsqlite3DbMallocRawNN(db, dupedExprSize(p, dupFlags));
-    staticFlag = 0;
-  }
-  pNew = (Expr *)zAlloc;
-
-  if( pNew ){
-    /* Set nNewSize to the size allocated for the structure pointed to
-    ** by pNew. This is either EXPR_FULLSIZE, EXPR_REDUCEDSIZE or
-    ** EXPR_TOKENONLYSIZE. nToken is set to the number of bytes consumed
-    ** by the copy of the p->u.zToken string (if any).
-    */
-    const unsigned nStructSize = dupedExprStructSize(p, dupFlags);
-    const int nNewSize = nStructSize & 0xfff;
-    int nToken;
-    if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){
-      nToken = tdsqlite3Strlen30(p->u.zToken) + 1;
-    }else{
-      nToken = 0;
-    }
-    if( dupFlags ){
-      assert( ExprHasProperty(p, EP_Reduced)==0 );
-      memcpy(zAlloc, p, nNewSize);
-    }else{
-      u32 nSize = (u32)exprStructSize(p);
-      memcpy(zAlloc, p, nSize);
-      if( nSize<EXPR_FULLSIZE ){ 
-        memset(&zAlloc[nSize], 0, EXPR_FULLSIZE-nSize);
-      }
-    }
-
-    /* Set the EP_Reduced, EP_TokenOnly, and EP_Static flags appropriately. */
-    pNew->flags &= ~(EP_Reduced|EP_TokenOnly|EP_Static|EP_MemToken);
-    pNew->flags |= nStructSize & (EP_Reduced|EP_TokenOnly);
-    pNew->flags |= staticFlag;
-
-    /* Copy the p->u.zToken string, if any. */
-    if( nToken ){
-      char *zToken = pNew->u.zToken = (char*)&zAlloc[nNewSize];
-      memcpy(zToken, p->u.zToken, nToken);
-    }
-
-    if( 0==((p->flags|pNew->flags) & (EP_TokenOnly|EP_Leaf)) ){
-      /* Fill in the pNew->x.pSelect or pNew->x.pList member. */
-      if( ExprHasProperty(p, EP_xIsSelect) ){
-        pNew->x.pSelect = tdsqlite3SelectDup(db, p->x.pSelect, dupFlags);
-      }else{
-        pNew->x.pList = tdsqlite3ExprListDup(db, p->x.pList, dupFlags);
-      }
-    }
-
-    /* Fill in pNew->pLeft and pNew->pRight. */
-    if( ExprHasProperty(pNew, EP_Reduced|EP_TokenOnly|EP_WinFunc) ){
-      zAlloc += dupedExprNodeSize(p, dupFlags);
-      if( !ExprHasProperty(pNew, EP_TokenOnly|EP_Leaf) ){
-        pNew->pLeft = p->pLeft ?
-                      exprDup(db, p->pLeft, EXPRDUP_REDUCE, &zAlloc) : 0;
-        pNew->pRight = p->pRight ?
-                       exprDup(db, p->pRight, EXPRDUP_REDUCE, &zAlloc) : 0;
-      }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      if( ExprHasProperty(p, EP_WinFunc) ){
-        pNew->y.pWin = tdsqlite3WindowDup(db, pNew, p->y.pWin);
-        assert( ExprHasProperty(pNew, EP_WinFunc) );
-      }
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-      if( pzBuffer ){
-        *pzBuffer = zAlloc;
-      }
-    }else{
-      if( !ExprHasProperty(p, EP_TokenOnly|EP_Leaf) ){
-        if( pNew->op==TK_SELECT_COLUMN ){
-          pNew->pLeft = p->pLeft;
-          assert( p->iColumn==0 || p->pRight==0 );
-          assert( p->pRight==0  || p->pRight==p->pLeft );
-        }else{
-          pNew->pLeft = tdsqlite3ExprDup(db, p->pLeft, 0);
-        }
-        pNew->pRight = tdsqlite3ExprDup(db, p->pRight, 0);
-      }
-    }
-  }
-  return pNew;
-}
-
-/*
-** Create and return a deep copy of the object passed as the second 
-** argument. If an OOM condition is encountered, NULL is returned
-** and the db->mallocFailed flag set.
-*/
-#ifndef SQLITE_OMIT_CTE
-static With *withDup(tdsqlite3 *db, With *p){
-  With *pRet = 0;
-  if( p ){
-    tdsqlite3_int64 nByte = sizeof(*p) + sizeof(p->a[0]) * (p->nCte-1);
-    pRet = tdsqlite3DbMallocZero(db, nByte);
-    if( pRet ){
-      int i;
-      pRet->nCte = p->nCte;
-      for(i=0; i<p->nCte; i++){
-        pRet->a[i].pSelect = tdsqlite3SelectDup(db, p->a[i].pSelect, 0);
-        pRet->a[i].pCols = tdsqlite3ExprListDup(db, p->a[i].pCols, 0);
-        pRet->a[i].zName = tdsqlite3DbStrDup(db, p->a[i].zName);
-      }
-    }
-  }
-  return pRet;
-}
-#else
-# define withDup(x,y) 0
-#endif
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-/*
-** The gatherSelectWindows() procedure and its helper routine
-** gatherSelectWindowsCallback() are used to scan all the expressions
-** an a newly duplicated SELECT statement and gather all of the Window
-** objects found there, assembling them onto the linked list at Select->pWin.
-*/
-static int gatherSelectWindowsCallback(Walker *pWalker, Expr *pExpr){
-  if( pExpr->op==TK_FUNCTION && ExprHasProperty(pExpr, EP_WinFunc) ){
-    Select *pSelect = pWalker->u.pSelect;
-    Window *pWin = pExpr->y.pWin;
-    assert( pWin );
-    assert( IsWindowFunc(pExpr) );
-    assert( pWin->ppThis==0 );
-    tdsqlite3WindowLink(pSelect, pWin);
-  }
-  return WRC_Continue;
-}
-static int gatherSelectWindowsSelectCallback(Walker *pWalker, Select *p){
-  return p==pWalker->u.pSelect ? WRC_Continue : WRC_Prune;
-}
-static void gatherSelectWindows(Select *p){
-  Walker w;
-  w.xExprCallback = gatherSelectWindowsCallback;
-  w.xSelectCallback = gatherSelectWindowsSelectCallback;
-  w.xSelectCallback2 = 0;
-  w.pParse = 0;
-  w.u.pSelect = p;
-  tdsqlite3WalkSelect(&w, p);
-}
-#endif
-
-
-/*
-** The following group of routines make deep copies of expressions,
-** expression lists, ID lists, and select statements.  The copies can
-** be deleted (by being passed to their respective ...Delete() routines)
-** without effecting the originals.
-**
-** The expression list, ID, and source lists return by tdsqlite3ExprListDup(),
-** tdsqlite3IdListDup(), and tdsqlite3SrcListDup() can not be further expanded 
-** by subsequent calls to sqlite*ListAppend() routines.
-**
-** Any tables that the SrcList might point to are not duplicated.
-**
-** The flags parameter contains a combination of the EXPRDUP_XXX flags.
-** If the EXPRDUP_REDUCE flag is set, then the structure returned is a
-** truncated version of the usual Expr structure that will be stored as
-** part of the in-memory representation of the database schema.
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprDup(tdsqlite3 *db, Expr *p, int flags){
-  assert( flags==0 || flags==EXPRDUP_REDUCE );
-  return p ? exprDup(db, p, flags, 0) : 0;
-}
-SQLITE_PRIVATE ExprList *tdsqlite3ExprListDup(tdsqlite3 *db, ExprList *p, int flags){
-  ExprList *pNew;
-  struct ExprList_item *pItem, *pOldItem;
-  int i;
-  Expr *pPriorSelectCol = 0;
-  assert( db!=0 );
-  if( p==0 ) return 0;
-  pNew = tdsqlite3DbMallocRawNN(db, tdsqlite3DbMallocSize(db, p));
-  if( pNew==0 ) return 0;
-  pNew->nExpr = p->nExpr;
-  pItem = pNew->a;
-  pOldItem = p->a;
-  for(i=0; i<p->nExpr; i++, pItem++, pOldItem++){
-    Expr *pOldExpr = pOldItem->pExpr;
-    Expr *pNewExpr;
-    pItem->pExpr = tdsqlite3ExprDup(db, pOldExpr, flags);
-    if( pOldExpr 
-     && pOldExpr->op==TK_SELECT_COLUMN
-     && (pNewExpr = pItem->pExpr)!=0 
-    ){
-      assert( pNewExpr->iColumn==0 || i>0 );
-      if( pNewExpr->iColumn==0 ){
-        assert( pOldExpr->pLeft==pOldExpr->pRight );
-        pPriorSelectCol = pNewExpr->pLeft = pNewExpr->pRight;
-      }else{
-        assert( i>0 );
-        assert( pItem[-1].pExpr!=0 );
-        assert( pNewExpr->iColumn==pItem[-1].pExpr->iColumn+1 );
-        assert( pPriorSelectCol==pItem[-1].pExpr->pLeft );
-        pNewExpr->pLeft = pPriorSelectCol;
-      }
-    }
-    pItem->zEName = tdsqlite3DbStrDup(db, pOldItem->zEName);
-    pItem->sortFlags = pOldItem->sortFlags;
-    pItem->eEName = pOldItem->eEName;
-    pItem->done = 0;
-    pItem->bNulls = pOldItem->bNulls;
-    pItem->bSorterRef = pOldItem->bSorterRef;
-    pItem->u = pOldItem->u;
-  }
-  return pNew;
-}
-
-/*
-** If cursors, triggers, views and subqueries are all omitted from
-** the build, then none of the following routines, except for 
-** tdsqlite3SelectDup(), can be called. tdsqlite3SelectDup() is sometimes
-** called with a NULL argument.
-*/
-#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_TRIGGER) \
- || !defined(SQLITE_OMIT_SUBQUERY)
-SQLITE_PRIVATE SrcList *tdsqlite3SrcListDup(tdsqlite3 *db, SrcList *p, int flags){
-  SrcList *pNew;
-  int i;
-  int nByte;
-  assert( db!=0 );
-  if( p==0 ) return 0;
-  nByte = sizeof(*p) + (p->nSrc>0 ? sizeof(p->a[0]) * (p->nSrc-1) : 0);
-  pNew = tdsqlite3DbMallocRawNN(db, nByte );
-  if( pNew==0 ) return 0;
-  pNew->nSrc = pNew->nAlloc = p->nSrc;
-  for(i=0; i<p->nSrc; i++){
-    struct SrcList_item *pNewItem = &pNew->a[i];
-    struct SrcList_item *pOldItem = &p->a[i];
-    Table *pTab;
-    pNewItem->pSchema = pOldItem->pSchema;
-    pNewItem->zDatabase = tdsqlite3DbStrDup(db, pOldItem->zDatabase);
-    pNewItem->zName = tdsqlite3DbStrDup(db, pOldItem->zName);
-    pNewItem->zAlias = tdsqlite3DbStrDup(db, pOldItem->zAlias);
-    pNewItem->fg = pOldItem->fg;
-    pNewItem->iCursor = pOldItem->iCursor;
-    pNewItem->addrFillSub = pOldItem->addrFillSub;
-    pNewItem->regReturn = pOldItem->regReturn;
-    if( pNewItem->fg.isIndexedBy ){
-      pNewItem->u1.zIndexedBy = tdsqlite3DbStrDup(db, pOldItem->u1.zIndexedBy);
-    }
-    pNewItem->pIBIndex = pOldItem->pIBIndex;
-    if( pNewItem->fg.isTabFunc ){
-      pNewItem->u1.pFuncArg = 
-          tdsqlite3ExprListDup(db, pOldItem->u1.pFuncArg, flags);
-    }
-    pTab = pNewItem->pTab = pOldItem->pTab;
-    if( pTab ){
-      pTab->nTabRef++;
-    }
-    pNewItem->pSelect = tdsqlite3SelectDup(db, pOldItem->pSelect, flags);
-    pNewItem->pOn = tdsqlite3ExprDup(db, pOldItem->pOn, flags);
-    pNewItem->pUsing = tdsqlite3IdListDup(db, pOldItem->pUsing);
-    pNewItem->colUsed = pOldItem->colUsed;
-  }
-  return pNew;
-}
-SQLITE_PRIVATE IdList *tdsqlite3IdListDup(tdsqlite3 *db, IdList *p){
-  IdList *pNew;
-  int i;
-  assert( db!=0 );
-  if( p==0 ) return 0;
-  pNew = tdsqlite3DbMallocRawNN(db, sizeof(*pNew) );
-  if( pNew==0 ) return 0;
-  pNew->nId = p->nId;
-  pNew->a = tdsqlite3DbMallocRawNN(db, p->nId*sizeof(p->a[0]) );
-  if( pNew->a==0 ){
-    tdsqlite3DbFreeNN(db, pNew);
-    return 0;
-  }
-  /* Note that because the size of the allocation for p->a[] is not
-  ** necessarily a power of two, tdsqlite3IdListAppend() may not be called
-  ** on the duplicate created by this function. */
-  for(i=0; i<p->nId; i++){
-    struct IdList_item *pNewItem = &pNew->a[i];
-    struct IdList_item *pOldItem = &p->a[i];
-    pNewItem->zName = tdsqlite3DbStrDup(db, pOldItem->zName);
-    pNewItem->idx = pOldItem->idx;
-  }
-  return pNew;
-}
-SQLITE_PRIVATE Select *tdsqlite3SelectDup(tdsqlite3 *db, Select *pDup, int flags){
-  Select *pRet = 0;
-  Select *pNext = 0;
-  Select **pp = &pRet;
-  Select *p;
-
-  assert( db!=0 );
-  for(p=pDup; p; p=p->pPrior){
-    Select *pNew = tdsqlite3DbMallocRawNN(db, sizeof(*p) );
-    if( pNew==0 ) break;
-    pNew->pEList = tdsqlite3ExprListDup(db, p->pEList, flags);
-    pNew->pSrc = tdsqlite3SrcListDup(db, p->pSrc, flags);
-    pNew->pWhere = tdsqlite3ExprDup(db, p->pWhere, flags);
-    pNew->pGroupBy = tdsqlite3ExprListDup(db, p->pGroupBy, flags);
-    pNew->pHaving = tdsqlite3ExprDup(db, p->pHaving, flags);
-    pNew->pOrderBy = tdsqlite3ExprListDup(db, p->pOrderBy, flags);
-    pNew->op = p->op;
-    pNew->pNext = pNext;
-    pNew->pPrior = 0;
-    pNew->pLimit = tdsqlite3ExprDup(db, p->pLimit, flags);
-    pNew->iLimit = 0;
-    pNew->iOffset = 0;
-    pNew->selFlags = p->selFlags & ~SF_UsesEphemeral;
-    pNew->addrOpenEphm[0] = -1;
-    pNew->addrOpenEphm[1] = -1;
-    pNew->nSelectRow = p->nSelectRow;
-    pNew->pWith = withDup(db, p->pWith);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    pNew->pWin = 0;
-    pNew->pWinDefn = tdsqlite3WindowListDup(db, p->pWinDefn);
-    if( p->pWin && db->mallocFailed==0 ) gatherSelectWindows(pNew);
-#endif
-    pNew->selId = p->selId;
-    *pp = pNew;
-    pp = &pNew->pPrior;
-    pNext = pNew;
-  }
-
-  return pRet;
-}
-#else
-SQLITE_PRIVATE Select *tdsqlite3SelectDup(tdsqlite3 *db, Select *p, int flags){
-  assert( p==0 );
-  return 0;
-}
-#endif
-
-
-/*
-** Add a new element to the end of an expression list.  If pList is
-** initially NULL, then create a new expression list.
-**
-** The pList argument must be either NULL or a pointer to an ExprList
-** obtained from a prior call to tdsqlite3ExprListAppend().  This routine
-** may not be used with an ExprList obtained from tdsqlite3ExprListDup().
-** Reason:  This routine assumes that the number of slots in pList->a[]
-** is a power of two.  That is true for tdsqlite3ExprListAppend() returns
-** but is not necessarily true from the return value of tdsqlite3ExprListDup().
-**
-** If a memory allocation error occurs, the entire list is freed and
-** NULL is returned.  If non-NULL is returned, then it is guaranteed
-** that the new entry was successfully appended.
-*/
-SQLITE_PRIVATE ExprList *tdsqlite3ExprListAppend(
-  Parse *pParse,          /* Parsing context */
-  ExprList *pList,        /* List to which to append. Might be NULL */
-  Expr *pExpr             /* Expression to be appended. Might be NULL */
-){
-  struct ExprList_item *pItem;
-  tdsqlite3 *db = pParse->db;
-  assert( db!=0 );
-  if( pList==0 ){
-    pList = tdsqlite3DbMallocRawNN(db, sizeof(ExprList) );
-    if( pList==0 ){
-      goto no_mem;
-    }
-    pList->nExpr = 0;
-  }else if( (pList->nExpr & (pList->nExpr-1))==0 ){
-    ExprList *pNew;
-    pNew = tdsqlite3DbRealloc(db, pList, 
-         sizeof(*pList)+(2*(tdsqlite3_int64)pList->nExpr-1)*sizeof(pList->a[0]));
-    if( pNew==0 ){
-      goto no_mem;
-    }
-    pList = pNew;
-  }
-  pItem = &pList->a[pList->nExpr++];
-  assert( offsetof(struct ExprList_item,zEName)==sizeof(pItem->pExpr) );
-  assert( offsetof(struct ExprList_item,pExpr)==0 );
-  memset(&pItem->zEName,0,sizeof(*pItem)-offsetof(struct ExprList_item,zEName));
-  pItem->pExpr = pExpr;
-  return pList;
-
-no_mem:     
-  /* Avoid leaking memory if malloc has failed. */
-  tdsqlite3ExprDelete(db, pExpr);
-  tdsqlite3ExprListDelete(db, pList);
-  return 0;
-}
-
-/*
-** pColumns and pExpr form a vector assignment which is part of the SET
-** clause of an UPDATE statement.  Like this:
-**
-**        (a,b,c) = (expr1,expr2,expr3)
-** Or:    (a,b,c) = (SELECT x,y,z FROM ....)
-**
-** For each term of the vector assignment, append new entries to the
-** expression list pList.  In the case of a subquery on the RHS, append
-** TK_SELECT_COLUMN expressions.
-*/
-SQLITE_PRIVATE ExprList *tdsqlite3ExprListAppendVector(
-  Parse *pParse,         /* Parsing context */
-  ExprList *pList,       /* List to which to append. Might be NULL */
-  IdList *pColumns,      /* List of names of LHS of the assignment */
-  Expr *pExpr            /* Vector expression to be appended. Might be NULL */
-){
-  tdsqlite3 *db = pParse->db;
-  int n;
-  int i;
-  int iFirst = pList ? pList->nExpr : 0;
-  /* pColumns can only be NULL due to an OOM but an OOM will cause an
-  ** exit prior to this routine being invoked */
-  if( NEVER(pColumns==0) ) goto vector_append_error;
-  if( pExpr==0 ) goto vector_append_error;
-
-  /* If the RHS is a vector, then we can immediately check to see that 
-  ** the size of the RHS and LHS match.  But if the RHS is a SELECT, 
-  ** wildcards ("*") in the result set of the SELECT must be expanded before
-  ** we can do the size check, so defer the size check until code generation.
-  */
-  if( pExpr->op!=TK_SELECT && pColumns->nId!=(n=tdsqlite3ExprVectorSize(pExpr)) ){
-    tdsqlite3ErrorMsg(pParse, "%d columns assigned %d values",
-                    pColumns->nId, n);
-    goto vector_append_error;
-  }
-
-  for(i=0; i<pColumns->nId; i++){
-    Expr *pSubExpr = tdsqlite3ExprForVectorField(pParse, pExpr, i);
-    assert( pSubExpr!=0 || db->mallocFailed );
-    assert( pSubExpr==0 || pSubExpr->iTable==0 );
-    if( pSubExpr==0 ) continue;
-    pSubExpr->iTable = pColumns->nId;
-    pList = tdsqlite3ExprListAppend(pParse, pList, pSubExpr);
-    if( pList ){
-      assert( pList->nExpr==iFirst+i+1 );
-      pList->a[pList->nExpr-1].zEName = pColumns->a[i].zName;
-      pColumns->a[i].zName = 0;
-    }
-  }
-
-  if( !db->mallocFailed && pExpr->op==TK_SELECT && ALWAYS(pList!=0) ){
-    Expr *pFirst = pList->a[iFirst].pExpr;
-    assert( pFirst!=0 );
-    assert( pFirst->op==TK_SELECT_COLUMN );
-     
-    /* Store the SELECT statement in pRight so it will be deleted when
-    ** tdsqlite3ExprListDelete() is called */
-    pFirst->pRight = pExpr;
-    pExpr = 0;
-
-    /* Remember the size of the LHS in iTable so that we can check that
-    ** the RHS and LHS sizes match during code generation. */
-    pFirst->iTable = pColumns->nId;
-  }
-
-vector_append_error:
-  tdsqlite3ExprUnmapAndDelete(pParse, pExpr);
-  tdsqlite3IdListDelete(db, pColumns);
-  return pList;
-}
-
-/*
-** Set the sort order for the last element on the given ExprList.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprListSetSortOrder(ExprList *p, int iSortOrder, int eNulls){
-  struct ExprList_item *pItem;
-  if( p==0 ) return;
-  assert( p->nExpr>0 );
-
-  assert( SQLITE_SO_UNDEFINED<0 && SQLITE_SO_ASC==0 && SQLITE_SO_DESC>0 );
-  assert( iSortOrder==SQLITE_SO_UNDEFINED 
-       || iSortOrder==SQLITE_SO_ASC 
-       || iSortOrder==SQLITE_SO_DESC 
-  );
-  assert( eNulls==SQLITE_SO_UNDEFINED 
-       || eNulls==SQLITE_SO_ASC 
-       || eNulls==SQLITE_SO_DESC 
-  );
-
-  pItem = &p->a[p->nExpr-1];
-  assert( pItem->bNulls==0 );
-  if( iSortOrder==SQLITE_SO_UNDEFINED ){
-    iSortOrder = SQLITE_SO_ASC;
-  }
-  pItem->sortFlags = (u8)iSortOrder;
-
-  if( eNulls!=SQLITE_SO_UNDEFINED ){
-    pItem->bNulls = 1;
-    if( iSortOrder!=eNulls ){
-      pItem->sortFlags |= KEYINFO_ORDER_BIGNULL;
-    }
-  }
-}
-
-/*
-** Set the ExprList.a[].zEName element of the most recently added item
-** on the expression list.
-**
-** pList might be NULL following an OOM error.  But pName should never be
-** NULL.  If a memory allocation fails, the pParse->db->mallocFailed flag
-** is set.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprListSetName(
-  Parse *pParse,          /* Parsing context */
-  ExprList *pList,        /* List to which to add the span. */
-  Token *pName,           /* Name to be added */
-  int dequote             /* True to cause the name to be dequoted */
-){
-  assert( pList!=0 || pParse->db->mallocFailed!=0 );
-  if( pList ){
-    struct ExprList_item *pItem;
-    assert( pList->nExpr>0 );
-    pItem = &pList->a[pList->nExpr-1];
-    assert( pItem->zEName==0 );
-    assert( pItem->eEName==ENAME_NAME );
-    pItem->zEName = tdsqlite3DbStrNDup(pParse->db, pName->z, pName->n);
-    if( dequote ) tdsqlite3Dequote(pItem->zEName);
-    if( IN_RENAME_OBJECT ){
-      tdsqlite3RenameTokenMap(pParse, (void*)pItem->zEName, pName);
-    }
-  }
-}
-
-/*
-** Set the ExprList.a[].zSpan element of the most recently added item
-** on the expression list.
-**
-** pList might be NULL following an OOM error.  But pSpan should never be
-** NULL.  If a memory allocation fails, the pParse->db->mallocFailed flag
-** is set.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprListSetSpan(
-  Parse *pParse,          /* Parsing context */
-  ExprList *pList,        /* List to which to add the span. */
-  const char *zStart,     /* Start of the span */
-  const char *zEnd        /* End of the span */
-){
-  tdsqlite3 *db = pParse->db;
-  assert( pList!=0 || db->mallocFailed!=0 );
-  if( pList ){
-    struct ExprList_item *pItem = &pList->a[pList->nExpr-1];
-    assert( pList->nExpr>0 );
-    if( pItem->zEName==0 ){
-      pItem->zEName = tdsqlite3DbSpanDup(db, zStart, zEnd);
-      pItem->eEName = ENAME_SPAN;
-    }
-  }
-}
-
-/*
-** If the expression list pEList contains more than iLimit elements,
-** leave an error message in pParse.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprListCheckLength(
-  Parse *pParse,
-  ExprList *pEList,
-  const char *zObject
-){
-  int mx = pParse->db->aLimit[SQLITE_LIMIT_COLUMN];
-  testcase( pEList && pEList->nExpr==mx );
-  testcase( pEList && pEList->nExpr==mx+1 );
-  if( pEList && pEList->nExpr>mx ){
-    tdsqlite3ErrorMsg(pParse, "too many columns in %s", zObject);
-  }
-}
-
-/*
-** Delete an entire expression list.
-*/
-static SQLITE_NOINLINE void exprListDeleteNN(tdsqlite3 *db, ExprList *pList){
-  int i = pList->nExpr;
-  struct ExprList_item *pItem =  pList->a;
-  assert( pList->nExpr>0 );
-  do{
-    tdsqlite3ExprDelete(db, pItem->pExpr);
-    tdsqlite3DbFree(db, pItem->zEName);
-    pItem++;
-  }while( --i>0 );
-  tdsqlite3DbFreeNN(db, pList);
-}
-SQLITE_PRIVATE void tdsqlite3ExprListDelete(tdsqlite3 *db, ExprList *pList){
-  if( pList ) exprListDeleteNN(db, pList);
-}
-
-/*
-** Return the bitwise-OR of all Expr.flags fields in the given
-** ExprList.
-*/
-SQLITE_PRIVATE u32 tdsqlite3ExprListFlags(const ExprList *pList){
-  int i;
-  u32 m = 0;
-  assert( pList!=0 );
-  for(i=0; i<pList->nExpr; i++){
-     Expr *pExpr = pList->a[i].pExpr;
-     assert( pExpr!=0 );
-     m |= pExpr->flags;
-  }
-  return m;
-}
-
-/*
-** This is a SELECT-node callback for the expression walker that
-** always "fails".  By "fail" in this case, we mean set
-** pWalker->eCode to zero and abort.
-**
-** This callback is used by multiple expression walkers.
-*/
-SQLITE_PRIVATE int tdsqlite3SelectWalkFail(Walker *pWalker, Select *NotUsed){
-  UNUSED_PARAMETER(NotUsed);
-  pWalker->eCode = 0;
-  return WRC_Abort;
-}
-
-/*
-** Check the input string to see if it is "true" or "false" (in any case).
-**
-**       If the string is....           Return
-**         "true"                         EP_IsTrue
-**         "false"                        EP_IsFalse
-**         anything else                  0
-*/
-SQLITE_PRIVATE u32 tdsqlite3IsTrueOrFalse(const char *zIn){
-  if( tdsqlite3StrICmp(zIn, "true")==0  ) return EP_IsTrue;
-  if( tdsqlite3StrICmp(zIn, "false")==0 ) return EP_IsFalse;
-  return 0;
-}
-
-
-/*
-** If the input expression is an ID with the name "true" or "false"
-** then convert it into an TK_TRUEFALSE term.  Return non-zero if
-** the conversion happened, and zero if the expression is unaltered.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprIdToTrueFalse(Expr *pExpr){
-  u32 v;
-  assert( pExpr->op==TK_ID || pExpr->op==TK_STRING );
-  if( !ExprHasProperty(pExpr, EP_Quoted)
-   && (v = tdsqlite3IsTrueOrFalse(pExpr->u.zToken))!=0
-  ){
-    pExpr->op = TK_TRUEFALSE;
-    ExprSetProperty(pExpr, v);
-    return 1;
-  }
-  return 0;
-}
-
-/*
-** The argument must be a TK_TRUEFALSE Expr node.  Return 1 if it is TRUE
-** and 0 if it is FALSE.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprTruthValue(const Expr *pExpr){
-  pExpr = tdsqlite3ExprSkipCollate((Expr*)pExpr);
-  assert( pExpr->op==TK_TRUEFALSE );
-  assert( tdsqlite3StrICmp(pExpr->u.zToken,"true")==0
-       || tdsqlite3StrICmp(pExpr->u.zToken,"false")==0 );
-  return pExpr->u.zToken[4]==0;
-}
-
-/*
-** If pExpr is an AND or OR expression, try to simplify it by eliminating
-** terms that are always true or false.  Return the simplified expression.
-** Or return the original expression if no simplification is possible.
-**
-** Examples:
-**
-**     (x<10) AND true                =>   (x<10)
-**     (x<10) AND false               =>   false
-**     (x<10) AND (y=22 OR false)     =>   (x<10) AND (y=22)
-**     (x<10) AND (y=22 OR true)      =>   (x<10)
-**     (y=22) OR true                 =>   true
-*/
-SQLITE_PRIVATE Expr *tdsqlite3ExprSimplifiedAndOr(Expr *pExpr){
-  assert( pExpr!=0 );
-  if( pExpr->op==TK_AND || pExpr->op==TK_OR ){
-    Expr *pRight = tdsqlite3ExprSimplifiedAndOr(pExpr->pRight);
-    Expr *pLeft = tdsqlite3ExprSimplifiedAndOr(pExpr->pLeft);
-    if( ExprAlwaysTrue(pLeft) || ExprAlwaysFalse(pRight) ){
-      pExpr = pExpr->op==TK_AND ? pRight : pLeft;
-    }else if( ExprAlwaysTrue(pRight) || ExprAlwaysFalse(pLeft) ){
-      pExpr = pExpr->op==TK_AND ? pLeft : pRight;
-    }
-  }
-  return pExpr;
-}
-
-
-/*
-** These routines are Walker callbacks used to check expressions to
-** see if they are "constant" for some definition of constant.  The
-** Walker.eCode value determines the type of "constant" we are looking
-** for.
-**
-** These callback routines are used to implement the following:
-**
-**     tdsqlite3ExprIsConstant()                  pWalker->eCode==1
-**     tdsqlite3ExprIsConstantNotJoin()           pWalker->eCode==2
-**     tdsqlite3ExprIsTableConstant()             pWalker->eCode==3
-**     tdsqlite3ExprIsConstantOrFunction()        pWalker->eCode==4 or 5
-**
-** In all cases, the callbacks set Walker.eCode=0 and abort if the expression
-** is found to not be a constant.
-**
-** The tdsqlite3ExprIsConstantOrFunction() is used for evaluating DEFAULT
-** expressions in a CREATE TABLE statement.  The Walker.eCode value is 5
-** when parsing an existing schema out of the sqlite_master table and 4
-** when processing a new CREATE TABLE statement.  A bound parameter raises
-** an error for new statements, but is silently converted
-** to NULL for existing schemas.  This allows sqlite_master tables that 
-** contain a bound parameter because they were generated by older versions
-** of SQLite to be parsed by newer versions of SQLite without raising a
-** malformed schema error.
-*/
-static int exprNodeIsConstant(Walker *pWalker, Expr *pExpr){
-
-  /* If pWalker->eCode is 2 then any term of the expression that comes from
-  ** the ON or USING clauses of a left join disqualifies the expression
-  ** from being considered constant. */
-  if( pWalker->eCode==2 && ExprHasProperty(pExpr, EP_FromJoin) ){
-    pWalker->eCode = 0;
-    return WRC_Abort;
-  }
-
-  switch( pExpr->op ){
-    /* Consider functions to be constant if all their arguments are constant
-    ** and either pWalker->eCode==4 or 5 or the function has the
-    ** SQLITE_FUNC_CONST flag. */
-    case TK_FUNCTION:
-      if( (pWalker->eCode>=4 || ExprHasProperty(pExpr,EP_ConstFunc))
-       && !ExprHasProperty(pExpr, EP_WinFunc)
-      ){
-        if( pWalker->eCode==5 ) ExprSetProperty(pExpr, EP_FromDDL);
-        return WRC_Continue;
-      }else{
-        pWalker->eCode = 0;
-        return WRC_Abort;
-      }
-    case TK_ID:
-      /* Convert "true" or "false" in a DEFAULT clause into the
-      ** appropriate TK_TRUEFALSE operator */
-      if( tdsqlite3ExprIdToTrueFalse(pExpr) ){
-        return WRC_Prune;
-      }
-      /* Fall thru */
-    case TK_COLUMN:
-    case TK_AGG_FUNCTION:
-    case TK_AGG_COLUMN:
-      testcase( pExpr->op==TK_ID );
-      testcase( pExpr->op==TK_COLUMN );
-      testcase( pExpr->op==TK_AGG_FUNCTION );
-      testcase( pExpr->op==TK_AGG_COLUMN );
-      if( ExprHasProperty(pExpr, EP_FixedCol) && pWalker->eCode!=2 ){
-        return WRC_Continue;
-      }
-      if( pWalker->eCode==3 && pExpr->iTable==pWalker->u.iCur ){
-        return WRC_Continue;
-      }
-      /* Fall through */
-    case TK_IF_NULL_ROW:
-    case TK_REGISTER:
-      testcase( pExpr->op==TK_REGISTER );
-      testcase( pExpr->op==TK_IF_NULL_ROW );
-      pWalker->eCode = 0;
-      return WRC_Abort;
-    case TK_VARIABLE:
-      if( pWalker->eCode==5 ){
-        /* Silently convert bound parameters that appear inside of CREATE
-        ** statements into a NULL when parsing the CREATE statement text out
-        ** of the sqlite_master table */
-        pExpr->op = TK_NULL;
-      }else if( pWalker->eCode==4 ){
-        /* A bound parameter in a CREATE statement that originates from
-        ** tdsqlite3_prepare() causes an error */
-        pWalker->eCode = 0;
-        return WRC_Abort;
-      }
-      /* Fall through */
-    default:
-      testcase( pExpr->op==TK_SELECT ); /* tdsqlite3SelectWalkFail() disallows */
-      testcase( pExpr->op==TK_EXISTS ); /* tdsqlite3SelectWalkFail() disallows */
-      return WRC_Continue;
-  }
-}
-static int exprIsConst(Expr *p, int initFlag, int iCur){
-  Walker w;
-  w.eCode = initFlag;
-  w.xExprCallback = exprNodeIsConstant;
-  w.xSelectCallback = tdsqlite3SelectWalkFail;
-#ifdef SQLITE_DEBUG
-  w.xSelectCallback2 = tdsqlite3SelectWalkAssert2;
-#endif
-  w.u.iCur = iCur;
-  tdsqlite3WalkExpr(&w, p);
-  return w.eCode;
-}
-
-/*
-** Walk an expression tree.  Return non-zero if the expression is constant
-** and 0 if it involves variables or function calls.
-**
-** For the purposes of this function, a double-quoted string (ex: "abc")
-** is considered a variable but a single-quoted string (ex: 'abc') is
-** a constant.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprIsConstant(Expr *p){
-  return exprIsConst(p, 1, 0);
-}
-
-/*
-** Walk an expression tree.  Return non-zero if
-**
-**   (1) the expression is constant, and
-**   (2) the expression does originate in the ON or USING clause
-**       of a LEFT JOIN, and
-**   (3) the expression does not contain any EP_FixedCol TK_COLUMN
-**       operands created by the constant propagation optimization.
-**
-** When this routine returns true, it indicates that the expression
-** can be added to the pParse->pConstExpr list and evaluated once when
-** the prepared statement starts up.  See tdsqlite3ExprCodeAtInit().
-*/
-SQLITE_PRIVATE int tdsqlite3ExprIsConstantNotJoin(Expr *p){
-  return exprIsConst(p, 2, 0);
-}
-
-/*
-** Walk an expression tree.  Return non-zero if the expression is constant
-** for any single row of the table with cursor iCur.  In other words, the
-** expression must not refer to any non-deterministic function nor any
-** table other than iCur.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprIsTableConstant(Expr *p, int iCur){
-  return exprIsConst(p, 3, iCur);
-}
-
-
-/*
-** tdsqlite3WalkExpr() callback used by tdsqlite3ExprIsConstantOrGroupBy().
-*/
-static int exprNodeIsConstantOrGroupBy(Walker *pWalker, Expr *pExpr){
-  ExprList *pGroupBy = pWalker->u.pGroupBy;
-  int i;
-
-  /* Check if pExpr is identical to any GROUP BY term. If so, consider
-  ** it constant.  */
-  for(i=0; i<pGroupBy->nExpr; i++){
-    Expr *p = pGroupBy->a[i].pExpr;
-    if( tdsqlite3ExprCompare(0, pExpr, p, -1)<2 ){
-      CollSeq *pColl = tdsqlite3ExprNNCollSeq(pWalker->pParse, p);
-      if( tdsqlite3IsBinary(pColl) ){
-        return WRC_Prune;
-      }
-    }
-  }
-
-  /* Check if pExpr is a sub-select. If so, consider it variable. */
-  if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-    pWalker->eCode = 0;
-    return WRC_Abort;
-  }
-
-  return exprNodeIsConstant(pWalker, pExpr);
-}
-
-/*
-** Walk the expression tree passed as the first argument. Return non-zero
-** if the expression consists entirely of constants or copies of terms 
-** in pGroupBy that sort with the BINARY collation sequence.
-**
-** This routine is used to determine if a term of the HAVING clause can
-** be promoted into the WHERE clause.  In order for such a promotion to work,
-** the value of the HAVING clause term must be the same for all members of
-** a "group".  The requirement that the GROUP BY term must be BINARY
-** assumes that no other collating sequence will have a finer-grained
-** grouping than binary.  In other words (A=B COLLATE binary) implies
-** A=B in every other collating sequence.  The requirement that the
-** GROUP BY be BINARY is stricter than necessary.  It would also work
-** to promote HAVING clauses that use the same alternative collating
-** sequence as the GROUP BY term, but that is much harder to check,
-** alternative collating sequences are uncommon, and this is only an
-** optimization, so we take the easy way out and simply require the
-** GROUP BY to use the BINARY collating sequence.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprIsConstantOrGroupBy(Parse *pParse, Expr *p, ExprList *pGroupBy){
-  Walker w;
-  w.eCode = 1;
-  w.xExprCallback = exprNodeIsConstantOrGroupBy;
-  w.xSelectCallback = 0;
-  w.u.pGroupBy = pGroupBy;
-  w.pParse = pParse;
-  tdsqlite3WalkExpr(&w, p);
-  return w.eCode;
-}
-
-/*
-** Walk an expression tree for the DEFAULT field of a column definition
-** in a CREATE TABLE statement.  Return non-zero if the expression is 
-** acceptable for use as a DEFAULT.  That is to say, return non-zero if
-** the expression is constant or a function call with constant arguments.
-** Return and 0 if there are any variables.
-**
-** isInit is true when parsing from sqlite_master.  isInit is false when
-** processing a new CREATE TABLE statement.  When isInit is true, parameters
-** (such as ? or $abc) in the expression are converted into NULL.  When
-** isInit is false, parameters raise an error.  Parameters should not be
-** allowed in a CREATE TABLE statement, but some legacy versions of SQLite
-** allowed it, so we need to support it when reading sqlite_master for
-** backwards compatibility.
-**
-** If isInit is true, set EP_FromDDL on every TK_FUNCTION node.
-**
-** For the purposes of this function, a double-quoted string (ex: "abc")
-** is considered a variable but a single-quoted string (ex: 'abc') is
-** a constant.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprIsConstantOrFunction(Expr *p, u8 isInit){
-  assert( isInit==0 || isInit==1 );
-  return exprIsConst(p, 4+isInit, 0);
-}
-
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-/*
-** Walk an expression tree.  Return 1 if the expression contains a
-** subquery of some kind.  Return 0 if there are no subqueries.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprContainsSubquery(Expr *p){
-  Walker w;
-  w.eCode = 1;
-  w.xExprCallback = tdsqlite3ExprWalkNoop;
-  w.xSelectCallback = tdsqlite3SelectWalkFail;
-#ifdef SQLITE_DEBUG
-  w.xSelectCallback2 = tdsqlite3SelectWalkAssert2;
-#endif
-  tdsqlite3WalkExpr(&w, p);
-  return w.eCode==0;
-}
-#endif
-
-/*
-** If the expression p codes a constant integer that is small enough
-** to fit in a 32-bit integer, return 1 and put the value of the integer
-** in *pValue.  If the expression is not an integer or if it is too big
-** to fit in a signed 32-bit integer, return 0 and leave *pValue unchanged.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprIsInteger(Expr *p, int *pValue){
-  int rc = 0;
-  if( NEVER(p==0) ) return 0;  /* Used to only happen following on OOM */
-
-  /* If an expression is an integer literal that fits in a signed 32-bit
-  ** integer, then the EP_IntValue flag will have already been set */
-  assert( p->op!=TK_INTEGER || (p->flags & EP_IntValue)!=0
-           || tdsqlite3GetInt32(p->u.zToken, &rc)==0 );
-
-  if( p->flags & EP_IntValue ){
-    *pValue = p->u.iValue;
-    return 1;
-  }
-  switch( p->op ){
-    case TK_UPLUS: {
-      rc = tdsqlite3ExprIsInteger(p->pLeft, pValue);
-      break;
-    }
-    case TK_UMINUS: {
-      int v;
-      if( tdsqlite3ExprIsInteger(p->pLeft, &v) ){
-        assert( v!=(-2147483647-1) );
-        *pValue = -v;
-        rc = 1;
-      }
-      break;
-    }
-    default: break;
-  }
-  return rc;
-}
-
-/*
-** Return FALSE if there is no chance that the expression can be NULL.
-**
-** If the expression might be NULL or if the expression is too complex
-** to tell return TRUE.  
-**
-** This routine is used as an optimization, to skip OP_IsNull opcodes
-** when we know that a value cannot be NULL.  Hence, a false positive
-** (returning TRUE when in fact the expression can never be NULL) might
-** be a small performance hit but is otherwise harmless.  On the other
-** hand, a false negative (returning FALSE when the result could be NULL)
-** will likely result in an incorrect answer.  So when in doubt, return
-** TRUE.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCanBeNull(const Expr *p){
-  u8 op;
-  while( p->op==TK_UPLUS || p->op==TK_UMINUS ){
-    p = p->pLeft;
-  }
-  op = p->op;
-  if( op==TK_REGISTER ) op = p->op2;
-  switch( op ){
-    case TK_INTEGER:
-    case TK_STRING:
-    case TK_FLOAT:
-    case TK_BLOB:
-      return 0;
-    case TK_COLUMN:
-      return ExprHasProperty(p, EP_CanBeNull) ||
-             p->y.pTab==0 ||  /* Reference to column of index on expression */
-             (p->iColumn>=0
-              && ALWAYS(p->y.pTab->aCol!=0) /* Defense against OOM problems */
-              && p->y.pTab->aCol[p->iColumn].notNull==0);
-    default:
-      return 1;
-  }
-}
-
-/*
-** Return TRUE if the given expression is a constant which would be
-** unchanged by OP_Affinity with the affinity given in the second
-** argument.
-**
-** This routine is used to determine if the OP_Affinity operation
-** can be omitted.  When in doubt return FALSE.  A false negative
-** is harmless.  A false positive, however, can result in the wrong
-** answer.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprNeedsNoAffinityChange(const Expr *p, char aff){
-  u8 op;
-  int unaryMinus = 0;
-  if( aff==SQLITE_AFF_BLOB ) return 1;
-  while( p->op==TK_UPLUS || p->op==TK_UMINUS ){
-    if( p->op==TK_UMINUS ) unaryMinus = 1;
-    p = p->pLeft;
-  }
-  op = p->op;
-  if( op==TK_REGISTER ) op = p->op2;
-  switch( op ){
-    case TK_INTEGER: {
-      return aff>=SQLITE_AFF_NUMERIC;
-    }
-    case TK_FLOAT: {
-      return aff>=SQLITE_AFF_NUMERIC;
-    }
-    case TK_STRING: {
-      return !unaryMinus && aff==SQLITE_AFF_TEXT;
-    }
-    case TK_BLOB: {
-      return !unaryMinus;
-    }
-    case TK_COLUMN: {
-      assert( p->iTable>=0 );  /* p cannot be part of a CHECK constraint */
-      return aff>=SQLITE_AFF_NUMERIC && p->iColumn<0;
-    }
-    default: {
-      return 0;
-    }
-  }
-}
-
-/*
-** Return TRUE if the given string is a row-id column name.
-*/
-SQLITE_PRIVATE int tdsqlite3IsRowid(const char *z){
-  if( tdsqlite3StrICmp(z, "_ROWID_")==0 ) return 1;
-  if( tdsqlite3StrICmp(z, "ROWID")==0 ) return 1;
-  if( tdsqlite3StrICmp(z, "OID")==0 ) return 1;
-  return 0;
-}
-
-/*
-** pX is the RHS of an IN operator.  If pX is a SELECT statement 
-** that can be simplified to a direct table access, then return
-** a pointer to the SELECT statement.  If pX is not a SELECT statement,
-** or if the SELECT statement needs to be manifested into a transient
-** table, then return NULL.
-*/
-#ifndef SQLITE_OMIT_SUBQUERY
-static Select *isCandidateForInOpt(Expr *pX){
-  Select *p;
-  SrcList *pSrc;
-  ExprList *pEList;
-  Table *pTab;
-  int i;
-  if( !ExprHasProperty(pX, EP_xIsSelect) ) return 0;  /* Not a subquery */
-  if( ExprHasProperty(pX, EP_VarSelect)  ) return 0;  /* Correlated subq */
-  p = pX->x.pSelect;
-  if( p->pPrior ) return 0;              /* Not a compound SELECT */
-  if( p->selFlags & (SF_Distinct|SF_Aggregate) ){
-    testcase( (p->selFlags & (SF_Distinct|SF_Aggregate))==SF_Distinct );
-    testcase( (p->selFlags & (SF_Distinct|SF_Aggregate))==SF_Aggregate );
-    return 0; /* No DISTINCT keyword and no aggregate functions */
-  }
-  assert( p->pGroupBy==0 );              /* Has no GROUP BY clause */
-  if( p->pLimit ) return 0;              /* Has no LIMIT clause */
-  if( p->pWhere ) return 0;              /* Has no WHERE clause */
-  pSrc = p->pSrc;
-  assert( pSrc!=0 );
-  if( pSrc->nSrc!=1 ) return 0;          /* Single term in FROM clause */
-  if( pSrc->a[0].pSelect ) return 0;     /* FROM is not a subquery or view */
-  pTab = pSrc->a[0].pTab;
-  assert( pTab!=0 );
-  assert( pTab->pSelect==0 );            /* FROM clause is not a view */
-  if( IsVirtual(pTab) ) return 0;        /* FROM clause not a virtual table */
-  pEList = p->pEList;
-  assert( pEList!=0 );
-  /* All SELECT results must be columns. */
-  for(i=0; i<pEList->nExpr; i++){
-    Expr *pRes = pEList->a[i].pExpr;
-    if( pRes->op!=TK_COLUMN ) return 0;
-    assert( pRes->iTable==pSrc->a[0].iCursor );  /* Not a correlated subquery */
-  }
-  return p;
-}
-#endif /* SQLITE_OMIT_SUBQUERY */
-
-#ifndef SQLITE_OMIT_SUBQUERY
-/*
-** Generate code that checks the left-most column of index table iCur to see if
-** it contains any NULL entries.  Cause the register at regHasNull to be set
-** to a non-NULL value if iCur contains no NULLs.  Cause register regHasNull
-** to be set to NULL if iCur contains one or more NULL values.
-*/
-static void tdsqlite3SetHasNullFlag(Vdbe *v, int iCur, int regHasNull){
-  int addr1;
-  tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regHasNull);
-  addr1 = tdsqlite3VdbeAddOp1(v, OP_Rewind, iCur); VdbeCoverage(v);
-  tdsqlite3VdbeAddOp3(v, OP_Column, iCur, 0, regHasNull);
-  tdsqlite3VdbeChangeP5(v, OPFLAG_TYPEOFARG);
-  VdbeComment((v, "first_entry_in(%d)", iCur));
-  tdsqlite3VdbeJumpHere(v, addr1);
-}
-#endif
-
-
-#ifndef SQLITE_OMIT_SUBQUERY
-/*
-** The argument is an IN operator with a list (not a subquery) on the 
-** right-hand side.  Return TRUE if that list is constant.
-*/
-static int tdsqlite3InRhsIsConstant(Expr *pIn){
-  Expr *pLHS;
-  int res;
-  assert( !ExprHasProperty(pIn, EP_xIsSelect) );
-  pLHS = pIn->pLeft;
-  pIn->pLeft = 0;
-  res = tdsqlite3ExprIsConstant(pIn);
-  pIn->pLeft = pLHS;
-  return res;
-}
-#endif
-
-/*
-** This function is used by the implementation of the IN (...) operator.
-** The pX parameter is the expression on the RHS of the IN operator, which
-** might be either a list of expressions or a subquery.
-**
-** The job of this routine is to find or create a b-tree object that can
-** be used either to test for membership in the RHS set or to iterate through
-** all members of the RHS set, skipping duplicates.
-**
-** A cursor is opened on the b-tree object that is the RHS of the IN operator
-** and pX->iTable is set to the index of that cursor.
-**
-** The returned value of this function indicates the b-tree type, as follows:
-**
-**   IN_INDEX_ROWID      - The cursor was opened on a database table.
-**   IN_INDEX_INDEX_ASC  - The cursor was opened on an ascending index.
-**   IN_INDEX_INDEX_DESC - The cursor was opened on a descending index.
-**   IN_INDEX_EPH        - The cursor was opened on a specially created and
-**                         populated epheremal table.
-**   IN_INDEX_NOOP       - No cursor was allocated.  The IN operator must be
-**                         implemented as a sequence of comparisons.
-**
-** An existing b-tree might be used if the RHS expression pX is a simple
-** subquery such as:
-**
-**     SELECT <column1>, <column2>... FROM <table>
-**
-** If the RHS of the IN operator is a list or a more complex subquery, then
-** an ephemeral table might need to be generated from the RHS and then
-** pX->iTable made to point to the ephemeral table instead of an
-** existing table.
-**
-** The inFlags parameter must contain, at a minimum, one of the bits
-** IN_INDEX_MEMBERSHIP or IN_INDEX_LOOP but not both.  If inFlags contains
-** IN_INDEX_MEMBERSHIP, then the generated table will be used for a fast
-** membership test.  When the IN_INDEX_LOOP bit is set, the IN index will
-** be used to loop over all values of the RHS of the IN operator.
-**
-** When IN_INDEX_LOOP is used (and the b-tree will be used to iterate
-** through the set members) then the b-tree must not contain duplicates.
-** An epheremal table will be created unless the selected columns are guaranteed
-** to be unique - either because it is an INTEGER PRIMARY KEY or due to
-** a UNIQUE constraint or index.
-**
-** When IN_INDEX_MEMBERSHIP is used (and the b-tree will be used 
-** for fast set membership tests) then an epheremal table must 
-** be used unless <columns> is a single INTEGER PRIMARY KEY column or an 
-** index can be found with the specified <columns> as its left-most.
-**
-** If the IN_INDEX_NOOP_OK and IN_INDEX_MEMBERSHIP are both set and
-** if the RHS of the IN operator is a list (not a subquery) then this
-** routine might decide that creating an ephemeral b-tree for membership
-** testing is too expensive and return IN_INDEX_NOOP.  In that case, the
-** calling routine should implement the IN operator using a sequence
-** of Eq or Ne comparison operations.
-**
-** When the b-tree is being used for membership tests, the calling function
-** might need to know whether or not the RHS side of the IN operator
-** contains a NULL.  If prRhsHasNull is not a NULL pointer and 
-** if there is any chance that the (...) might contain a NULL value at
-** runtime, then a register is allocated and the register number written
-** to *prRhsHasNull. If there is no chance that the (...) contains a
-** NULL value, then *prRhsHasNull is left unchanged.
-**
-** If a register is allocated and its location stored in *prRhsHasNull, then
-** the value in that register will be NULL if the b-tree contains one or more
-** NULL values, and it will be some non-NULL value if the b-tree contains no
-** NULL values.
-**
-** If the aiMap parameter is not NULL, it must point to an array containing
-** one element for each column returned by the SELECT statement on the RHS
-** of the IN(...) operator. The i'th entry of the array is populated with the
-** offset of the index column that matches the i'th column returned by the
-** SELECT. For example, if the expression and selected index are:
-**
-**   (?,?,?) IN (SELECT a, b, c FROM t1)
-**   CREATE INDEX i1 ON t1(b, c, a);
-**
-** then aiMap[] is populated with {2, 0, 1}.
-*/
-#ifndef SQLITE_OMIT_SUBQUERY
-SQLITE_PRIVATE int tdsqlite3FindInIndex(
-  Parse *pParse,             /* Parsing context */
-  Expr *pX,                  /* The IN expression */
-  u32 inFlags,               /* IN_INDEX_LOOP, _MEMBERSHIP, and/or _NOOP_OK */
-  int *prRhsHasNull,         /* Register holding NULL status.  See notes */
-  int *aiMap,                /* Mapping from Index fields to RHS fields */
-  int *piTab                 /* OUT: index to use */
-){
-  Select *p;                            /* SELECT to the right of IN operator */
-  int eType = 0;                        /* Type of RHS table. IN_INDEX_* */
-  int iTab = pParse->nTab++;            /* Cursor of the RHS table */
-  int mustBeUnique;                     /* True if RHS must be unique */
-  Vdbe *v = tdsqlite3GetVdbe(pParse);     /* Virtual machine being coded */
-
-  assert( pX->op==TK_IN );
-  mustBeUnique = (inFlags & IN_INDEX_LOOP)!=0;
-
-  /* If the RHS of this IN(...) operator is a SELECT, and if it matters 
-  ** whether or not the SELECT result contains NULL values, check whether
-  ** or not NULL is actually possible (it may not be, for example, due 
-  ** to NOT NULL constraints in the schema). If no NULL values are possible,
-  ** set prRhsHasNull to 0 before continuing.  */
-  if( prRhsHasNull && (pX->flags & EP_xIsSelect) ){
-    int i;
-    ExprList *pEList = pX->x.pSelect->pEList;
-    for(i=0; i<pEList->nExpr; i++){
-      if( tdsqlite3ExprCanBeNull(pEList->a[i].pExpr) ) break;
-    }
-    if( i==pEList->nExpr ){
-      prRhsHasNull = 0;
-    }
-  }
-
-  /* Check to see if an existing table or index can be used to
-  ** satisfy the query.  This is preferable to generating a new 
-  ** ephemeral table.  */
-  if( pParse->nErr==0 && (p = isCandidateForInOpt(pX))!=0 ){
-    tdsqlite3 *db = pParse->db;              /* Database connection */
-    Table *pTab;                           /* Table <table>. */
-    i16 iDb;                               /* Database idx for pTab */
-    ExprList *pEList = p->pEList;
-    int nExpr = pEList->nExpr;
-
-    assert( p->pEList!=0 );             /* Because of isCandidateForInOpt(p) */
-    assert( p->pEList->a[0].pExpr!=0 ); /* Because of isCandidateForInOpt(p) */
-    assert( p->pSrc!=0 );               /* Because of isCandidateForInOpt(p) */
-    pTab = p->pSrc->a[0].pTab;
-
-    /* Code an OP_Transaction and OP_TableLock for <table>. */
-    iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-    tdsqlite3CodeVerifySchema(pParse, iDb);
-    tdsqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
-
-    assert(v);  /* tdsqlite3GetVdbe() has always been previously called */
-    if( nExpr==1 && pEList->a[0].pExpr->iColumn<0 ){
-      /* The "x IN (SELECT rowid FROM table)" case */
-      int iAddr = tdsqlite3VdbeAddOp0(v, OP_Once);
-      VdbeCoverage(v);
-
-      tdsqlite3OpenTable(pParse, iTab, iDb, pTab, OP_OpenRead);
-      eType = IN_INDEX_ROWID;
-      ExplainQueryPlan((pParse, 0,
-            "USING ROWID SEARCH ON TABLE %s FOR IN-OPERATOR",pTab->zName));
-      tdsqlite3VdbeJumpHere(v, iAddr);
-    }else{
-      Index *pIdx;                         /* Iterator variable */
-      int affinity_ok = 1;
-      int i;
-
-      /* Check that the affinity that will be used to perform each 
-      ** comparison is the same as the affinity of each column in table
-      ** on the RHS of the IN operator.  If it not, it is not possible to
-      ** use any index of the RHS table.  */
-      for(i=0; i<nExpr && affinity_ok; i++){
-        Expr *pLhs = tdsqlite3VectorFieldSubexpr(pX->pLeft, i);
-        int iCol = pEList->a[i].pExpr->iColumn;
-        char idxaff = tdsqlite3TableColumnAffinity(pTab,iCol); /* RHS table */
-        char cmpaff = tdsqlite3CompareAffinity(pLhs, idxaff);
-        testcase( cmpaff==SQLITE_AFF_BLOB );
-        testcase( cmpaff==SQLITE_AFF_TEXT );
-        switch( cmpaff ){
-          case SQLITE_AFF_BLOB:
-            break;
-          case SQLITE_AFF_TEXT:
-            /* tdsqlite3CompareAffinity() only returns TEXT if one side or the
-            ** other has no affinity and the other side is TEXT.  Hence,
-            ** the only way for cmpaff to be TEXT is for idxaff to be TEXT
-            ** and for the term on the LHS of the IN to have no affinity. */
-            assert( idxaff==SQLITE_AFF_TEXT );
-            break;
-          default:
-            affinity_ok = tdsqlite3IsNumericAffinity(idxaff);
-        }
-      }
-
-      if( affinity_ok ){
-        /* Search for an existing index that will work for this IN operator */
-        for(pIdx=pTab->pIndex; pIdx && eType==0; pIdx=pIdx->pNext){
-          Bitmask colUsed;      /* Columns of the index used */
-          Bitmask mCol;         /* Mask for the current column */
-          if( pIdx->nColumn<nExpr ) continue;
-          if( pIdx->pPartIdxWhere!=0 ) continue;
-          /* Maximum nColumn is BMS-2, not BMS-1, so that we can compute
-          ** BITMASK(nExpr) without overflowing */
-          testcase( pIdx->nColumn==BMS-2 );
-          testcase( pIdx->nColumn==BMS-1 );
-          if( pIdx->nColumn>=BMS-1 ) continue;
-          if( mustBeUnique ){
-            if( pIdx->nKeyCol>nExpr
-             ||(pIdx->nColumn>nExpr && !IsUniqueIndex(pIdx))
-            ){
-              continue;  /* This index is not unique over the IN RHS columns */
-            }
-          }
-  
-          colUsed = 0;   /* Columns of index used so far */
-          for(i=0; i<nExpr; i++){
-            Expr *pLhs = tdsqlite3VectorFieldSubexpr(pX->pLeft, i);
-            Expr *pRhs = pEList->a[i].pExpr;
-            CollSeq *pReq = tdsqlite3BinaryCompareCollSeq(pParse, pLhs, pRhs);
-            int j;
-  
-            assert( pReq!=0 || pRhs->iColumn==XN_ROWID || pParse->nErr );
-            for(j=0; j<nExpr; j++){
-              if( pIdx->aiColumn[j]!=pRhs->iColumn ) continue;
-              assert( pIdx->azColl[j] );
-              if( pReq!=0 && tdsqlite3StrICmp(pReq->zName, pIdx->azColl[j])!=0 ){
-                continue;
-              }
-              break;
-            }
-            if( j==nExpr ) break;
-            mCol = MASKBIT(j);
-            if( mCol & colUsed ) break; /* Each column used only once */
-            colUsed |= mCol;
-            if( aiMap ) aiMap[i] = j;
-          }
-  
-          assert( i==nExpr || colUsed!=(MASKBIT(nExpr)-1) );
-          if( colUsed==(MASKBIT(nExpr)-1) ){
-            /* If we reach this point, that means the index pIdx is usable */
-            int iAddr = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-            ExplainQueryPlan((pParse, 0,
-                              "USING INDEX %s FOR IN-OPERATOR",pIdx->zName));
-            tdsqlite3VdbeAddOp3(v, OP_OpenRead, iTab, pIdx->tnum, iDb);
-            tdsqlite3VdbeSetP4KeyInfo(pParse, pIdx);
-            VdbeComment((v, "%s", pIdx->zName));
-            assert( IN_INDEX_INDEX_DESC == IN_INDEX_INDEX_ASC+1 );
-            eType = IN_INDEX_INDEX_ASC + pIdx->aSortOrder[0];
-  
-            if( prRhsHasNull ){
-#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
-              i64 mask = (1<<nExpr)-1;
-              tdsqlite3VdbeAddOp4Dup8(v, OP_ColumnsUsed, 
-                  iTab, 0, 0, (u8*)&mask, P4_INT64);
-#endif
-              *prRhsHasNull = ++pParse->nMem;
-              if( nExpr==1 ){
-                tdsqlite3SetHasNullFlag(v, iTab, *prRhsHasNull);
-              }
-            }
-            tdsqlite3VdbeJumpHere(v, iAddr);
-          }
-        } /* End loop over indexes */
-      } /* End if( affinity_ok ) */
-    } /* End if not an rowid index */
-  } /* End attempt to optimize using an index */
-
-  /* If no preexisting index is available for the IN clause
-  ** and IN_INDEX_NOOP is an allowed reply
-  ** and the RHS of the IN operator is a list, not a subquery
-  ** and the RHS is not constant or has two or fewer terms,
-  ** then it is not worth creating an ephemeral table to evaluate
-  ** the IN operator so return IN_INDEX_NOOP.
-  */
-  if( eType==0
-   && (inFlags & IN_INDEX_NOOP_OK)
-   && !ExprHasProperty(pX, EP_xIsSelect)
-   && (!tdsqlite3InRhsIsConstant(pX) || pX->x.pList->nExpr<=2)
-  ){
-    eType = IN_INDEX_NOOP;
-  }
-
-  if( eType==0 ){
-    /* Could not find an existing table or index to use as the RHS b-tree.
-    ** We will have to generate an ephemeral table to do the job.
-    */
-    u32 savedNQueryLoop = pParse->nQueryLoop;
-    int rMayHaveNull = 0;
-    eType = IN_INDEX_EPH;
-    if( inFlags & IN_INDEX_LOOP ){
-      pParse->nQueryLoop = 0;
-    }else if( prRhsHasNull ){
-      *prRhsHasNull = rMayHaveNull = ++pParse->nMem;
-    }
-    assert( pX->op==TK_IN );
-    tdsqlite3CodeRhsOfIN(pParse, pX, iTab);
-    if( rMayHaveNull ){
-      tdsqlite3SetHasNullFlag(v, iTab, rMayHaveNull);
-    }
-    pParse->nQueryLoop = savedNQueryLoop;
-  }
-
-  if( aiMap && eType!=IN_INDEX_INDEX_ASC && eType!=IN_INDEX_INDEX_DESC ){
-    int i, n;
-    n = tdsqlite3ExprVectorSize(pX->pLeft);
-    for(i=0; i<n; i++) aiMap[i] = i;
-  }
-  *piTab = iTab;
-  return eType;
-}
-#endif
-
-#ifndef SQLITE_OMIT_SUBQUERY
-/*
-** Argument pExpr is an (?, ?...) IN(...) expression. This 
-** function allocates and returns a nul-terminated string containing 
-** the affinities to be used for each column of the comparison.
-**
-** It is the responsibility of the caller to ensure that the returned
-** string is eventually freed using tdsqlite3DbFree().
-*/
-static char *exprINAffinity(Parse *pParse, Expr *pExpr){
-  Expr *pLeft = pExpr->pLeft;
-  int nVal = tdsqlite3ExprVectorSize(pLeft);
-  Select *pSelect = (pExpr->flags & EP_xIsSelect) ? pExpr->x.pSelect : 0;
-  char *zRet;
-
-  assert( pExpr->op==TK_IN );
-  zRet = tdsqlite3DbMallocRaw(pParse->db, nVal+1);
-  if( zRet ){
-    int i;
-    for(i=0; i<nVal; i++){
-      Expr *pA = tdsqlite3VectorFieldSubexpr(pLeft, i);
-      char a = tdsqlite3ExprAffinity(pA);
-      if( pSelect ){
-        zRet[i] = tdsqlite3CompareAffinity(pSelect->pEList->a[i].pExpr, a);
-      }else{
-        zRet[i] = a;
-      }
-    }
-    zRet[nVal] = '\0';
-  }
-  return zRet;
-}
-#endif
-
-#ifndef SQLITE_OMIT_SUBQUERY
-/*
-** Load the Parse object passed as the first argument with an error 
-** message of the form:
-**
-**   "sub-select returns N columns - expected M"
-*/   
-SQLITE_PRIVATE void tdsqlite3SubselectError(Parse *pParse, int nActual, int nExpect){
-  if( pParse->nErr==0 ){
-    const char *zFmt = "sub-select returns %d columns - expected %d";
-    tdsqlite3ErrorMsg(pParse, zFmt, nActual, nExpect);
-  }
-}
-#endif
-
-/*
-** Expression pExpr is a vector that has been used in a context where
-** it is not permitted. If pExpr is a sub-select vector, this routine 
-** loads the Parse object with a message of the form:
-**
-**   "sub-select returns N columns - expected 1"
-**
-** Or, if it is a regular scalar vector:
-**
-**   "row value misused"
-*/   
-SQLITE_PRIVATE void tdsqlite3VectorErrorMsg(Parse *pParse, Expr *pExpr){
-#ifndef SQLITE_OMIT_SUBQUERY
-  if( pExpr->flags & EP_xIsSelect ){
-    tdsqlite3SubselectError(pParse, pExpr->x.pSelect->pEList->nExpr, 1);
-  }else
-#endif
-  {
-    tdsqlite3ErrorMsg(pParse, "row value misused");
-  }
-}
-
-#ifndef SQLITE_OMIT_SUBQUERY
-/*
-** Generate code that will construct an ephemeral table containing all terms
-** in the RHS of an IN operator.  The IN operator can be in either of two
-** forms:
-**
-**     x IN (4,5,11)              -- IN operator with list on right-hand side
-**     x IN (SELECT a FROM b)     -- IN operator with subquery on the right
-**
-** The pExpr parameter is the IN operator.  The cursor number for the
-** constructed ephermeral table is returned.  The first time the ephemeral
-** table is computed, the cursor number is also stored in pExpr->iTable,
-** however the cursor number returned might not be the same, as it might
-** have been duplicated using OP_OpenDup.
-**
-** If the LHS expression ("x" in the examples) is a column value, or
-** the SELECT statement returns a column value, then the affinity of that
-** column is used to build the index keys. If both 'x' and the
-** SELECT... statement are columns, then numeric affinity is used
-** if either column has NUMERIC or INTEGER affinity. If neither
-** 'x' nor the SELECT... statement are columns, then numeric affinity
-** is used.
-*/
-SQLITE_PRIVATE void tdsqlite3CodeRhsOfIN(
-  Parse *pParse,          /* Parsing context */
-  Expr *pExpr,            /* The IN operator */
-  int iTab                /* Use this cursor number */
-){
-  int addrOnce = 0;           /* Address of the OP_Once instruction at top */
-  int addr;                   /* Address of OP_OpenEphemeral instruction */
-  Expr *pLeft;                /* the LHS of the IN operator */
-  KeyInfo *pKeyInfo = 0;      /* Key information */
-  int nVal;                   /* Size of vector pLeft */
-  Vdbe *v;                    /* The prepared statement under construction */
-
-  v = pParse->pVdbe;
-  assert( v!=0 );
-
-  /* The evaluation of the IN must be repeated every time it
-  ** is encountered if any of the following is true:
-  **
-  **    *  The right-hand side is a correlated subquery
-  **    *  The right-hand side is an expression list containing variables
-  **    *  We are inside a trigger
-  **
-  ** If all of the above are false, then we can compute the RHS just once
-  ** and reuse it many names.
-  */
-  if( !ExprHasProperty(pExpr, EP_VarSelect) && pParse->iSelfTab==0 ){
-    /* Reuse of the RHS is allowed */
-    /* If this routine has already been coded, but the previous code
-    ** might not have been invoked yet, so invoke it now as a subroutine. 
-    */
-    if( ExprHasProperty(pExpr, EP_Subrtn) ){
-      addrOnce = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-      if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-        ExplainQueryPlan((pParse, 0, "REUSE LIST SUBQUERY %d",
-              pExpr->x.pSelect->selId));
-      }
-      tdsqlite3VdbeAddOp2(v, OP_Gosub, pExpr->y.sub.regReturn,
-                        pExpr->y.sub.iAddr);
-      tdsqlite3VdbeAddOp2(v, OP_OpenDup, iTab, pExpr->iTable);
-      tdsqlite3VdbeJumpHere(v, addrOnce);
-      return;
-    }
-
-    /* Begin coding the subroutine */
-    ExprSetProperty(pExpr, EP_Subrtn);
-    pExpr->y.sub.regReturn = ++pParse->nMem;
-    pExpr->y.sub.iAddr =
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pExpr->y.sub.regReturn) + 1;
-    VdbeComment((v, "return address"));
-
-    addrOnce = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-  }
-
-  /* Check to see if this is a vector IN operator */
-  pLeft = pExpr->pLeft;
-  nVal = tdsqlite3ExprVectorSize(pLeft);
-
-  /* Construct the ephemeral table that will contain the content of
-  ** RHS of the IN operator.
-  */
-  pExpr->iTable = iTab;
-  addr = tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, pExpr->iTable, nVal);
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-  if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-    VdbeComment((v, "Result of SELECT %u", pExpr->x.pSelect->selId));
-  }else{
-    VdbeComment((v, "RHS of IN operator"));
-  }
-#endif
-  pKeyInfo = tdsqlite3KeyInfoAlloc(pParse->db, nVal, 1);
-
-  if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-    /* Case 1:     expr IN (SELECT ...)
-    **
-    ** Generate code to write the results of the select into the temporary
-    ** table allocated and opened above.
-    */
-    Select *pSelect = pExpr->x.pSelect;
-    ExprList *pEList = pSelect->pEList;
-
-    ExplainQueryPlan((pParse, 1, "%sLIST SUBQUERY %d",
-        addrOnce?"":"CORRELATED ", pSelect->selId
-    ));
-    /* If the LHS and RHS of the IN operator do not match, that
-    ** error will have been caught long before we reach this point. */
-    if( ALWAYS(pEList->nExpr==nVal) ){
-      SelectDest dest;
-      int i;
-      tdsqlite3SelectDestInit(&dest, SRT_Set, iTab);
-      dest.zAffSdst = exprINAffinity(pParse, pExpr);
-      pSelect->iLimit = 0;
-      testcase( pSelect->selFlags & SF_Distinct );
-      testcase( pKeyInfo==0 ); /* Caused by OOM in tdsqlite3KeyInfoAlloc() */
-      if( tdsqlite3Select(pParse, pSelect, &dest) ){
-        tdsqlite3DbFree(pParse->db, dest.zAffSdst);
-        tdsqlite3KeyInfoUnref(pKeyInfo);
-        return;
-      }
-      tdsqlite3DbFree(pParse->db, dest.zAffSdst);
-      assert( pKeyInfo!=0 ); /* OOM will cause exit after tdsqlite3Select() */
-      assert( pEList!=0 );
-      assert( pEList->nExpr>0 );
-      assert( tdsqlite3KeyInfoIsWriteable(pKeyInfo) );
-      for(i=0; i<nVal; i++){
-        Expr *p = tdsqlite3VectorFieldSubexpr(pLeft, i);
-        pKeyInfo->aColl[i] = tdsqlite3BinaryCompareCollSeq(
-            pParse, p, pEList->a[i].pExpr
-        );
-      }
-    }
-  }else if( ALWAYS(pExpr->x.pList!=0) ){
-    /* Case 2:     expr IN (exprlist)
-    **
-    ** For each expression, build an index key from the evaluation and
-    ** store it in the temporary table. If <expr> is a column, then use
-    ** that columns affinity when building index keys. If <expr> is not
-    ** a column, use numeric affinity.
-    */
-    char affinity;            /* Affinity of the LHS of the IN */
-    int i;
-    ExprList *pList = pExpr->x.pList;
-    struct ExprList_item *pItem;
-    int r1, r2;
-    affinity = tdsqlite3ExprAffinity(pLeft);
-    if( affinity<=SQLITE_AFF_NONE ){
-      affinity = SQLITE_AFF_BLOB;
-    }
-    if( pKeyInfo ){
-      assert( tdsqlite3KeyInfoIsWriteable(pKeyInfo) );
-      pKeyInfo->aColl[0] = tdsqlite3ExprCollSeq(pParse, pExpr->pLeft);
-    }
-
-    /* Loop through each expression in <exprlist>. */
-    r1 = tdsqlite3GetTempReg(pParse);
-    r2 = tdsqlite3GetTempReg(pParse);
-    for(i=pList->nExpr, pItem=pList->a; i>0; i--, pItem++){
-      Expr *pE2 = pItem->pExpr;
-
-      /* If the expression is not constant then we will need to
-      ** disable the test that was generated above that makes sure
-      ** this code only executes once.  Because for a non-constant
-      ** expression we need to rerun this code each time.
-      */
-      if( addrOnce && !tdsqlite3ExprIsConstant(pE2) ){
-        tdsqlite3VdbeChangeToNoop(v, addrOnce);
-        ExprClearProperty(pExpr, EP_Subrtn);
-        addrOnce = 0;
-      }
-
-      /* Evaluate the expression and insert it into the temp table */
-      tdsqlite3ExprCode(pParse, pE2, r1);
-      tdsqlite3VdbeAddOp4(v, OP_MakeRecord, r1, 1, r2, &affinity, 1);
-      tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iTab, r2, r1, 1);
-    }
-    tdsqlite3ReleaseTempReg(pParse, r1);
-    tdsqlite3ReleaseTempReg(pParse, r2);
-  }
-  if( pKeyInfo ){
-    tdsqlite3VdbeChangeP4(v, addr, (void *)pKeyInfo, P4_KEYINFO);
-  }
-  if( addrOnce ){
-    tdsqlite3VdbeJumpHere(v, addrOnce);
-    /* Subroutine return */
-    tdsqlite3VdbeAddOp1(v, OP_Return, pExpr->y.sub.regReturn);
-    tdsqlite3VdbeChangeP1(v, pExpr->y.sub.iAddr-1, tdsqlite3VdbeCurrentAddr(v)-1);
-    tdsqlite3ClearTempRegCache(pParse);
-  }
-}
-#endif /* SQLITE_OMIT_SUBQUERY */
-
-/*
-** Generate code for scalar subqueries used as a subquery expression
-** or EXISTS operator:
-**
-**     (SELECT a FROM b)          -- subquery
-**     EXISTS (SELECT a FROM b)   -- EXISTS subquery
-**
-** The pExpr parameter is the SELECT or EXISTS operator to be coded.
-**
-** Return the register that holds the result.  For a multi-column SELECT, 
-** the result is stored in a contiguous array of registers and the
-** return value is the register of the left-most result column.
-** Return 0 if an error occurs.
-*/
-#ifndef SQLITE_OMIT_SUBQUERY
-SQLITE_PRIVATE int tdsqlite3CodeSubselect(Parse *pParse, Expr *pExpr){
-  int addrOnce = 0;           /* Address of OP_Once at top of subroutine */
-  int rReg = 0;               /* Register storing resulting */
-  Select *pSel;               /* SELECT statement to encode */
-  SelectDest dest;            /* How to deal with SELECT result */
-  int nReg;                   /* Registers to allocate */
-  Expr *pLimit;               /* New limit expression */
-
-  Vdbe *v = pParse->pVdbe;
-  assert( v!=0 );
-  testcase( pExpr->op==TK_EXISTS );
-  testcase( pExpr->op==TK_SELECT );
-  assert( pExpr->op==TK_EXISTS || pExpr->op==TK_SELECT );
-  assert( ExprHasProperty(pExpr, EP_xIsSelect) );
-  pSel = pExpr->x.pSelect;
-
-  /* The evaluation of the EXISTS/SELECT must be repeated every time it
-  ** is encountered if any of the following is true:
-  **
-  **    *  The right-hand side is a correlated subquery
-  **    *  The right-hand side is an expression list containing variables
-  **    *  We are inside a trigger
-  **
-  ** If all of the above are false, then we can run this code just once
-  ** save the results, and reuse the same result on subsequent invocations.
-  */
-  if( !ExprHasProperty(pExpr, EP_VarSelect) ){
-    /* If this routine has already been coded, then invoke it as a
-    ** subroutine. */
-    if( ExprHasProperty(pExpr, EP_Subrtn) ){
-      ExplainQueryPlan((pParse, 0, "REUSE SUBQUERY %d", pSel->selId));
-      tdsqlite3VdbeAddOp2(v, OP_Gosub, pExpr->y.sub.regReturn,
-                        pExpr->y.sub.iAddr);
-      return pExpr->iTable;
-    }
-
-    /* Begin coding the subroutine */
-    ExprSetProperty(pExpr, EP_Subrtn);
-    pExpr->y.sub.regReturn = ++pParse->nMem;
-    pExpr->y.sub.iAddr =
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pExpr->y.sub.regReturn) + 1;
-    VdbeComment((v, "return address"));
-
-    addrOnce = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-  }
-  
-  /* For a SELECT, generate code to put the values for all columns of
-  ** the first row into an array of registers and return the index of
-  ** the first register.
-  **
-  ** If this is an EXISTS, write an integer 0 (not exists) or 1 (exists)
-  ** into a register and return that register number.
-  **
-  ** In both cases, the query is augmented with "LIMIT 1".  Any 
-  ** preexisting limit is discarded in place of the new LIMIT 1.
-  */
-  ExplainQueryPlan((pParse, 1, "%sSCALAR SUBQUERY %d",
-        addrOnce?"":"CORRELATED ", pSel->selId));
-  nReg = pExpr->op==TK_SELECT ? pSel->pEList->nExpr : 1;
-  tdsqlite3SelectDestInit(&dest, 0, pParse->nMem+1);
-  pParse->nMem += nReg;
-  if( pExpr->op==TK_SELECT ){
-    dest.eDest = SRT_Mem;
-    dest.iSdst = dest.iSDParm;
-    dest.nSdst = nReg;
-    tdsqlite3VdbeAddOp3(v, OP_Null, 0, dest.iSDParm, dest.iSDParm+nReg-1);
-    VdbeComment((v, "Init subquery result"));
-  }else{
-    dest.eDest = SRT_Exists;
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 0, dest.iSDParm);
-    VdbeComment((v, "Init EXISTS result"));
-  }
-  if( pSel->pLimit ){
-    /* The subquery already has a limit.  If the pre-existing limit is X
-    ** then make the new limit X<>0 so that the new limit is either 1 or 0 */
-    tdsqlite3 *db = pParse->db;
-    pLimit = tdsqlite3Expr(db, TK_INTEGER, "0");
-    if( pLimit ){
-      pLimit->affExpr = SQLITE_AFF_NUMERIC;
-      pLimit = tdsqlite3PExpr(pParse, TK_NE,
-                            tdsqlite3ExprDup(db, pSel->pLimit->pLeft, 0), pLimit);
-    }
-    tdsqlite3ExprDelete(db, pSel->pLimit->pLeft);
-    pSel->pLimit->pLeft = pLimit;
-  }else{
-    /* If there is no pre-existing limit add a limit of 1 */
-    pLimit = tdsqlite3Expr(pParse->db, TK_INTEGER, "1");
-    pSel->pLimit = tdsqlite3PExpr(pParse, TK_LIMIT, pLimit, 0);
-  }
-  pSel->iLimit = 0;
-  if( tdsqlite3Select(pParse, pSel, &dest) ){
-    return 0;
-  }
-  pExpr->iTable = rReg = dest.iSDParm;
-  ExprSetVVAProperty(pExpr, EP_NoReduce);
-  if( addrOnce ){
-    tdsqlite3VdbeJumpHere(v, addrOnce);
-
-    /* Subroutine return */
-    tdsqlite3VdbeAddOp1(v, OP_Return, pExpr->y.sub.regReturn);
-    tdsqlite3VdbeChangeP1(v, pExpr->y.sub.iAddr-1, tdsqlite3VdbeCurrentAddr(v)-1);
-    tdsqlite3ClearTempRegCache(pParse);
-  }
-
-  return rReg;
-}
-#endif /* SQLITE_OMIT_SUBQUERY */
-
-#ifndef SQLITE_OMIT_SUBQUERY
-/*
-** Expr pIn is an IN(...) expression. This function checks that the 
-** sub-select on the RHS of the IN() operator has the same number of 
-** columns as the vector on the LHS. Or, if the RHS of the IN() is not 
-** a sub-query, that the LHS is a vector of size 1.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCheckIN(Parse *pParse, Expr *pIn){
-  int nVector = tdsqlite3ExprVectorSize(pIn->pLeft);
-  if( (pIn->flags & EP_xIsSelect) ){
-    if( nVector!=pIn->x.pSelect->pEList->nExpr ){
-      tdsqlite3SubselectError(pParse, pIn->x.pSelect->pEList->nExpr, nVector);
-      return 1;
-    }
-  }else if( nVector!=1 ){
-    tdsqlite3VectorErrorMsg(pParse, pIn->pLeft);
-    return 1;
-  }
-  return 0;
-}
-#endif
-
-#ifndef SQLITE_OMIT_SUBQUERY
-/*
-** Generate code for an IN expression.
-**
-**      x IN (SELECT ...)
-**      x IN (value, value, ...)
-**
-** The left-hand side (LHS) is a scalar or vector expression.  The 
-** right-hand side (RHS) is an array of zero or more scalar values, or a
-** subquery.  If the RHS is a subquery, the number of result columns must
-** match the number of columns in the vector on the LHS.  If the RHS is
-** a list of values, the LHS must be a scalar. 
-**
-** The IN operator is true if the LHS value is contained within the RHS.
-** The result is false if the LHS is definitely not in the RHS.  The 
-** result is NULL if the presence of the LHS in the RHS cannot be 
-** determined due to NULLs.
-**
-** This routine generates code that jumps to destIfFalse if the LHS is not 
-** contained within the RHS.  If due to NULLs we cannot determine if the LHS
-** is contained in the RHS then jump to destIfNull.  If the LHS is contained
-** within the RHS then fall through.
-**
-** See the separate in-operator.md documentation file in the canonical
-** SQLite source tree for additional information.
-*/
-static void tdsqlite3ExprCodeIN(
-  Parse *pParse,        /* Parsing and code generating context */
-  Expr *pExpr,          /* The IN expression */
-  int destIfFalse,      /* Jump here if LHS is not contained in the RHS */
-  int destIfNull        /* Jump here if the results are unknown due to NULLs */
-){
-  int rRhsHasNull = 0;  /* Register that is true if RHS contains NULL values */
-  int eType;            /* Type of the RHS */
-  int rLhs;             /* Register(s) holding the LHS values */
-  int rLhsOrig;         /* LHS values prior to reordering by aiMap[] */
-  Vdbe *v;              /* Statement under construction */
-  int *aiMap = 0;       /* Map from vector field to index column */
-  char *zAff = 0;       /* Affinity string for comparisons */
-  int nVector;          /* Size of vectors for this IN operator */
-  int iDummy;           /* Dummy parameter to exprCodeVector() */
-  Expr *pLeft;          /* The LHS of the IN operator */
-  int i;                /* loop counter */
-  int destStep2;        /* Where to jump when NULLs seen in step 2 */
-  int destStep6 = 0;    /* Start of code for Step 6 */
-  int addrTruthOp;      /* Address of opcode that determines the IN is true */
-  int destNotNull;      /* Jump here if a comparison is not true in step 6 */
-  int addrTop;          /* Top of the step-6 loop */ 
-  int iTab = 0;         /* Index to use */
-
-  pLeft = pExpr->pLeft;
-  if( tdsqlite3ExprCheckIN(pParse, pExpr) ) return;
-  zAff = exprINAffinity(pParse, pExpr);
-  nVector = tdsqlite3ExprVectorSize(pExpr->pLeft);
-  aiMap = (int*)tdsqlite3DbMallocZero(
-      pParse->db, nVector*(sizeof(int) + sizeof(char)) + 1
-  );
-  if( pParse->db->mallocFailed ) goto tdsqlite3ExprCodeIN_oom_error;
-
-  /* Attempt to compute the RHS. After this step, if anything other than
-  ** IN_INDEX_NOOP is returned, the table opened with cursor iTab
-  ** contains the values that make up the RHS. If IN_INDEX_NOOP is returned,
-  ** the RHS has not yet been coded.  */
-  v = pParse->pVdbe;
-  assert( v!=0 );       /* OOM detected prior to this routine */
-  VdbeNoopComment((v, "begin IN expr"));
-  eType = tdsqlite3FindInIndex(pParse, pExpr,
-                             IN_INDEX_MEMBERSHIP | IN_INDEX_NOOP_OK,
-                             destIfFalse==destIfNull ? 0 : &rRhsHasNull,
-                             aiMap, &iTab);
-
-  assert( pParse->nErr || nVector==1 || eType==IN_INDEX_EPH
-       || eType==IN_INDEX_INDEX_ASC || eType==IN_INDEX_INDEX_DESC 
-  );
-#ifdef SQLITE_DEBUG
-  /* Confirm that aiMap[] contains nVector integer values between 0 and
-  ** nVector-1. */
-  for(i=0; i<nVector; i++){
-    int j, cnt;
-    for(cnt=j=0; j<nVector; j++) if( aiMap[j]==i ) cnt++;
-    assert( cnt==1 );
-  }
-#endif
-
-  /* Code the LHS, the <expr> from "<expr> IN (...)". If the LHS is a 
-  ** vector, then it is stored in an array of nVector registers starting 
-  ** at r1.
-  **
-  ** tdsqlite3FindInIndex() might have reordered the fields of the LHS vector
-  ** so that the fields are in the same order as an existing index.   The
-  ** aiMap[] array contains a mapping from the original LHS field order to
-  ** the field order that matches the RHS index.
-  */
-  rLhsOrig = exprCodeVector(pParse, pLeft, &iDummy);
-  for(i=0; i<nVector && aiMap[i]==i; i++){} /* Are LHS fields reordered? */
-  if( i==nVector ){
-    /* LHS fields are not reordered */
-    rLhs = rLhsOrig;
-  }else{
-    /* Need to reorder the LHS fields according to aiMap */
-    rLhs = tdsqlite3GetTempRange(pParse, nVector);
-    for(i=0; i<nVector; i++){
-      tdsqlite3VdbeAddOp3(v, OP_Copy, rLhsOrig+i, rLhs+aiMap[i], 0);
-    }
-  }
-
-  /* If tdsqlite3FindInIndex() did not find or create an index that is
-  ** suitable for evaluating the IN operator, then evaluate using a
-  ** sequence of comparisons.
-  **
-  ** This is step (1) in the in-operator.md optimized algorithm.
-  */
-  if( eType==IN_INDEX_NOOP ){
-    ExprList *pList = pExpr->x.pList;
-    CollSeq *pColl = tdsqlite3ExprCollSeq(pParse, pExpr->pLeft);
-    int labelOk = tdsqlite3VdbeMakeLabel(pParse);
-    int r2, regToFree;
-    int regCkNull = 0;
-    int ii;
-    int bLhsReal;  /* True if the LHS of the IN has REAL affinity */
-    assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-    if( destIfNull!=destIfFalse ){
-      regCkNull = tdsqlite3GetTempReg(pParse);
-      tdsqlite3VdbeAddOp3(v, OP_BitAnd, rLhs, rLhs, regCkNull);
-    }
-    bLhsReal = tdsqlite3ExprAffinity(pExpr->pLeft)==SQLITE_AFF_REAL;
-    for(ii=0; ii<pList->nExpr; ii++){
-      if( bLhsReal ){
-        r2 = regToFree = tdsqlite3GetTempReg(pParse);
-        tdsqlite3ExprCode(pParse, pList->a[ii].pExpr, r2);
-        tdsqlite3VdbeAddOp4(v, OP_Affinity, r2, 1, 0, "E", P4_STATIC);
-      }else{
-        r2 = tdsqlite3ExprCodeTemp(pParse, pList->a[ii].pExpr, &regToFree);
-      }
-      if( regCkNull && tdsqlite3ExprCanBeNull(pList->a[ii].pExpr) ){
-        tdsqlite3VdbeAddOp3(v, OP_BitAnd, regCkNull, r2, regCkNull);
-      }
-      tdsqlite3ReleaseTempReg(pParse, regToFree);
-      if( ii<pList->nExpr-1 || destIfNull!=destIfFalse ){
-        int op = rLhs!=r2 ? OP_Eq : OP_NotNull;
-        tdsqlite3VdbeAddOp4(v, op, rLhs, labelOk, r2,
-                          (void*)pColl, P4_COLLSEQ);
-        VdbeCoverageIf(v, ii<pList->nExpr-1 && op==OP_Eq);
-        VdbeCoverageIf(v, ii==pList->nExpr-1 && op==OP_Eq);
-        VdbeCoverageIf(v, ii<pList->nExpr-1 && op==OP_NotNull);
-        VdbeCoverageIf(v, ii==pList->nExpr-1 && op==OP_NotNull);
-        tdsqlite3VdbeChangeP5(v, zAff[0]);
-      }else{
-        int op = rLhs!=r2 ? OP_Ne : OP_IsNull;
-        assert( destIfNull==destIfFalse );
-        tdsqlite3VdbeAddOp4(v, op, rLhs, destIfFalse, r2,
-                          (void*)pColl, P4_COLLSEQ);
-        VdbeCoverageIf(v, op==OP_Ne);
-        VdbeCoverageIf(v, op==OP_IsNull);
-        tdsqlite3VdbeChangeP5(v, zAff[0] | SQLITE_JUMPIFNULL);
-      }
-    }
-    if( regCkNull ){
-      tdsqlite3VdbeAddOp2(v, OP_IsNull, regCkNull, destIfNull); VdbeCoverage(v);
-      tdsqlite3VdbeGoto(v, destIfFalse);
-    }
-    tdsqlite3VdbeResolveLabel(v, labelOk);
-    tdsqlite3ReleaseTempReg(pParse, regCkNull);
-    goto tdsqlite3ExprCodeIN_finished;
-  }
-
-  /* Step 2: Check to see if the LHS contains any NULL columns.  If the
-  ** LHS does contain NULLs then the result must be either FALSE or NULL.
-  ** We will then skip the binary search of the RHS.
-  */
-  if( destIfNull==destIfFalse ){
-    destStep2 = destIfFalse;
-  }else{
-    destStep2 = destStep6 = tdsqlite3VdbeMakeLabel(pParse);
-  }
-  if( pParse->nErr ) goto tdsqlite3ExprCodeIN_finished;
-  for(i=0; i<nVector; i++){
-    Expr *p = tdsqlite3VectorFieldSubexpr(pExpr->pLeft, i);
-    if( tdsqlite3ExprCanBeNull(p) ){
-      tdsqlite3VdbeAddOp2(v, OP_IsNull, rLhs+i, destStep2);
-      VdbeCoverage(v);
-    }
-  }
-
-  /* Step 3.  The LHS is now known to be non-NULL.  Do the binary search
-  ** of the RHS using the LHS as a probe.  If found, the result is
-  ** true.
-  */
-  if( eType==IN_INDEX_ROWID ){
-    /* In this case, the RHS is the ROWID of table b-tree and so we also
-    ** know that the RHS is non-NULL.  Hence, we combine steps 3 and 4
-    ** into a single opcode. */
-    tdsqlite3VdbeAddOp3(v, OP_SeekRowid, iTab, destIfFalse, rLhs);
-    VdbeCoverage(v);
-    addrTruthOp = tdsqlite3VdbeAddOp0(v, OP_Goto);  /* Return True */
-  }else{
-    tdsqlite3VdbeAddOp4(v, OP_Affinity, rLhs, nVector, 0, zAff, nVector);
-    if( destIfFalse==destIfNull ){
-      /* Combine Step 3 and Step 5 into a single opcode */
-      tdsqlite3VdbeAddOp4Int(v, OP_NotFound, iTab, destIfFalse,
-                           rLhs, nVector); VdbeCoverage(v);
-      goto tdsqlite3ExprCodeIN_finished;
-    }
-    /* Ordinary Step 3, for the case where FALSE and NULL are distinct */
-    addrTruthOp = tdsqlite3VdbeAddOp4Int(v, OP_Found, iTab, 0,
-                                      rLhs, nVector); VdbeCoverage(v);
-  }
-
-  /* Step 4.  If the RHS is known to be non-NULL and we did not find
-  ** an match on the search above, then the result must be FALSE.
-  */
-  if( rRhsHasNull && nVector==1 ){
-    tdsqlite3VdbeAddOp2(v, OP_NotNull, rRhsHasNull, destIfFalse);
-    VdbeCoverage(v);
-  }
-
-  /* Step 5.  If we do not care about the difference between NULL and
-  ** FALSE, then just return false. 
-  */
-  if( destIfFalse==destIfNull ) tdsqlite3VdbeGoto(v, destIfFalse);
-
-  /* Step 6: Loop through rows of the RHS.  Compare each row to the LHS.
-  ** If any comparison is NULL, then the result is NULL.  If all
-  ** comparisons are FALSE then the final result is FALSE.
-  **
-  ** For a scalar LHS, it is sufficient to check just the first row
-  ** of the RHS.
-  */
-  if( destStep6 ) tdsqlite3VdbeResolveLabel(v, destStep6);
-  addrTop = tdsqlite3VdbeAddOp2(v, OP_Rewind, iTab, destIfFalse);
-  VdbeCoverage(v);
-  if( nVector>1 ){
-    destNotNull = tdsqlite3VdbeMakeLabel(pParse);
-  }else{
-    /* For nVector==1, combine steps 6 and 7 by immediately returning
-    ** FALSE if the first comparison is not NULL */
-    destNotNull = destIfFalse;
-  }
-  for(i=0; i<nVector; i++){
-    Expr *p;
-    CollSeq *pColl;
-    int r3 = tdsqlite3GetTempReg(pParse);
-    p = tdsqlite3VectorFieldSubexpr(pLeft, i);
-    pColl = tdsqlite3ExprCollSeq(pParse, p);
-    tdsqlite3VdbeAddOp3(v, OP_Column, iTab, i, r3);
-    tdsqlite3VdbeAddOp4(v, OP_Ne, rLhs+i, destNotNull, r3,
-                      (void*)pColl, P4_COLLSEQ);
-    VdbeCoverage(v);
-    tdsqlite3ReleaseTempReg(pParse, r3);
-  }
-  tdsqlite3VdbeAddOp2(v, OP_Goto, 0, destIfNull);
-  if( nVector>1 ){
-    tdsqlite3VdbeResolveLabel(v, destNotNull);
-    tdsqlite3VdbeAddOp2(v, OP_Next, iTab, addrTop+1);
-    VdbeCoverage(v);
-
-    /* Step 7:  If we reach this point, we know that the result must
-    ** be false. */
-    tdsqlite3VdbeAddOp2(v, OP_Goto, 0, destIfFalse);
-  }
-
-  /* Jumps here in order to return true. */
-  tdsqlite3VdbeJumpHere(v, addrTruthOp);
-
-tdsqlite3ExprCodeIN_finished:
-  if( rLhs!=rLhsOrig ) tdsqlite3ReleaseTempReg(pParse, rLhs);
-  VdbeComment((v, "end IN expr"));
-tdsqlite3ExprCodeIN_oom_error:
-  tdsqlite3DbFree(pParse->db, aiMap);
-  tdsqlite3DbFree(pParse->db, zAff);
-}
-#endif /* SQLITE_OMIT_SUBQUERY */
-
-#ifndef SQLITE_OMIT_FLOATING_POINT
-/*
-** Generate an instruction that will put the floating point
-** value described by z[0..n-1] into register iMem.
-**
-** The z[] string will probably not be zero-terminated.  But the 
-** z[n] character is guaranteed to be something that does not look
-** like the continuation of the number.
-*/
-static void codeReal(Vdbe *v, const char *z, int negateFlag, int iMem){
-  if( ALWAYS(z!=0) ){
-    double value;
-    tdsqlite3AtoF(z, &value, tdsqlite3Strlen30(z), SQLITE_UTF8);
-    assert( !tdsqlite3IsNaN(value) ); /* The new AtoF never returns NaN */
-    if( negateFlag ) value = -value;
-    tdsqlite3VdbeAddOp4Dup8(v, OP_Real, 0, iMem, 0, (u8*)&value, P4_REAL);
-  }
-}
-#endif
-
-
-/*
-** Generate an instruction that will put the integer describe by
-** text z[0..n-1] into register iMem.
-**
-** Expr.u.zToken is always UTF8 and zero-terminated.
-*/
-static void codeInteger(Parse *pParse, Expr *pExpr, int negFlag, int iMem){
-  Vdbe *v = pParse->pVdbe;
-  if( pExpr->flags & EP_IntValue ){
-    int i = pExpr->u.iValue;
-    assert( i>=0 );
-    if( negFlag ) i = -i;
-    tdsqlite3VdbeAddOp2(v, OP_Integer, i, iMem);
-  }else{
-    int c;
-    i64 value;
-    const char *z = pExpr->u.zToken;
-    assert( z!=0 );
-    c = tdsqlite3DecOrHexToI64(z, &value);
-    if( (c==3 && !negFlag) || (c==2) || (negFlag && value==SMALLEST_INT64)){
-#ifdef SQLITE_OMIT_FLOATING_POINT
-      tdsqlite3ErrorMsg(pParse, "oversized integer: %s%s", negFlag ? "-" : "", z);
-#else
-#ifndef SQLITE_OMIT_HEX_INTEGER
-      if( tdsqlite3_strnicmp(z,"0x",2)==0 ){
-        tdsqlite3ErrorMsg(pParse, "hex literal too big: %s%s", negFlag?"-":"",z);
-      }else
-#endif
-      {
-        codeReal(v, z, negFlag, iMem);
-      }
-#endif
-    }else{
-      if( negFlag ){ value = c==3 ? SMALLEST_INT64 : -value; }
-      tdsqlite3VdbeAddOp4Dup8(v, OP_Int64, 0, iMem, 0, (u8*)&value, P4_INT64);
-    }
-  }
-}
-
-
-/* Generate code that will load into register regOut a value that is
-** appropriate for the iIdxCol-th column of index pIdx.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprCodeLoadIndexColumn(
-  Parse *pParse,  /* The parsing context */
-  Index *pIdx,    /* The index whose column is to be loaded */
-  int iTabCur,    /* Cursor pointing to a table row */
-  int iIdxCol,    /* The column of the index to be loaded */
-  int regOut      /* Store the index column value in this register */
-){
-  i16 iTabCol = pIdx->aiColumn[iIdxCol];
-  if( iTabCol==XN_EXPR ){
-    assert( pIdx->aColExpr );
-    assert( pIdx->aColExpr->nExpr>iIdxCol );
-    pParse->iSelfTab = iTabCur + 1;
-    tdsqlite3ExprCodeCopy(pParse, pIdx->aColExpr->a[iIdxCol].pExpr, regOut);
-    pParse->iSelfTab = 0;
-  }else{
-    tdsqlite3ExprCodeGetColumnOfTable(pParse->pVdbe, pIdx->pTable, iTabCur,
-                                    iTabCol, regOut);
-  }
-}
-
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-/*
-** Generate code that will compute the value of generated column pCol
-** and store the result in register regOut
-*/
-SQLITE_PRIVATE void tdsqlite3ExprCodeGeneratedColumn(
-  Parse *pParse,
-  Column *pCol,
-  int regOut
-){
-  int iAddr;
-  Vdbe *v = pParse->pVdbe;
-  assert( v!=0 );
-  assert( pParse->iSelfTab!=0 );
-  if( pParse->iSelfTab>0 ){
-    iAddr = tdsqlite3VdbeAddOp3(v, OP_IfNullRow, pParse->iSelfTab-1, 0, regOut);
-  }else{
-    iAddr = 0;
-  }
-  tdsqlite3ExprCode(pParse, pCol->pDflt, regOut);
-  if( pCol->affinity>=SQLITE_AFF_TEXT ){
-    tdsqlite3VdbeAddOp4(v, OP_Affinity, regOut, 1, 0, &pCol->affinity, 1);
-  }
-  if( iAddr ) tdsqlite3VdbeJumpHere(v, iAddr);
-}
-#endif /* SQLITE_OMIT_GENERATED_COLUMNS */
-
-/*
-** Generate code to extract the value of the iCol-th column of a table.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprCodeGetColumnOfTable(
-  Vdbe *v,        /* Parsing context */
-  Table *pTab,    /* The table containing the value */
-  int iTabCur,    /* The table cursor.  Or the PK cursor for WITHOUT ROWID */
-  int iCol,       /* Index of the column to extract */
-  int regOut      /* Extract the value into this register */
-){
-  Column *pCol;
-  assert( v!=0 );
-  if( pTab==0 ){
-    tdsqlite3VdbeAddOp3(v, OP_Column, iTabCur, iCol, regOut);
-    return;
-  }
-  if( iCol<0 || iCol==pTab->iPKey ){
-    tdsqlite3VdbeAddOp2(v, OP_Rowid, iTabCur, regOut);
-  }else{
-    int op;
-    int x;
-    if( IsVirtual(pTab) ){
-      op = OP_VColumn;
-      x = iCol;
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-    }else if( (pCol = &pTab->aCol[iCol])->colFlags & COLFLAG_VIRTUAL ){
-      Parse *pParse = tdsqlite3VdbeParser(v);
-      if( pCol->colFlags & COLFLAG_BUSY ){
-        tdsqlite3ErrorMsg(pParse, "generated column loop on \"%s\"", pCol->zName);
-      }else{
-        int savedSelfTab = pParse->iSelfTab;
-        pCol->colFlags |= COLFLAG_BUSY;
-        pParse->iSelfTab = iTabCur+1;
-        tdsqlite3ExprCodeGeneratedColumn(pParse, pCol, regOut);
-        pParse->iSelfTab = savedSelfTab;
-        pCol->colFlags &= ~COLFLAG_BUSY;
-      }
-      return;
-#endif
-    }else if( !HasRowid(pTab) ){
-      testcase( iCol!=tdsqlite3TableColumnToStorage(pTab, iCol) );
-      x = tdsqlite3TableColumnToIndex(tdsqlite3PrimaryKeyIndex(pTab), iCol);
-      op = OP_Column;
-    }else{
-      x = tdsqlite3TableColumnToStorage(pTab,iCol);
-      testcase( x!=iCol );
-      op = OP_Column;
-    }
-    tdsqlite3VdbeAddOp3(v, op, iTabCur, x, regOut);
-    tdsqlite3ColumnDefault(v, pTab, iCol, regOut);
-  }
-}
-
-/*
-** Generate code that will extract the iColumn-th column from
-** table pTab and store the column value in register iReg. 
-**
-** There must be an open cursor to pTab in iTable when this routine
-** is called.  If iColumn<0 then code is generated that extracts the rowid.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCodeGetColumn(
-  Parse *pParse,   /* Parsing and code generating context */
-  Table *pTab,     /* Description of the table we are reading from */
-  int iColumn,     /* Index of the table column */
-  int iTable,      /* The cursor pointing to the table */
-  int iReg,        /* Store results here */
-  u8 p5            /* P5 value for OP_Column + FLAGS */
-){
-  assert( pParse->pVdbe!=0 );
-  tdsqlite3ExprCodeGetColumnOfTable(pParse->pVdbe, pTab, iTable, iColumn, iReg);
-  if( p5 ){
-    VdbeOp *pOp = tdsqlite3VdbeGetOp(pParse->pVdbe,-1);
-    if( pOp->opcode==OP_Column ) pOp->p5 = p5;
-  }
-  return iReg;
-}
-
-/*
-** Generate code to move content from registers iFrom...iFrom+nReg-1
-** over to iTo..iTo+nReg-1.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprCodeMove(Parse *pParse, int iFrom, int iTo, int nReg){
-  tdsqlite3VdbeAddOp3(pParse->pVdbe, OP_Move, iFrom, iTo, nReg);
-}
-
-/*
-** Convert a scalar expression node to a TK_REGISTER referencing
-** register iReg.  The caller must ensure that iReg already contains
-** the correct value for the expression.
-*/
-static void exprToRegister(Expr *pExpr, int iReg){
-  Expr *p = tdsqlite3ExprSkipCollateAndLikely(pExpr);
-  p->op2 = p->op;
-  p->op = TK_REGISTER;
-  p->iTable = iReg;
-  ExprClearProperty(p, EP_Skip);
-}
-
-/*
-** Evaluate an expression (either a vector or a scalar expression) and store
-** the result in continguous temporary registers.  Return the index of
-** the first register used to store the result.
-**
-** If the returned result register is a temporary scalar, then also write
-** that register number into *piFreeable.  If the returned result register
-** is not a temporary or if the expression is a vector set *piFreeable
-** to 0.
-*/
-static int exprCodeVector(Parse *pParse, Expr *p, int *piFreeable){
-  int iResult;
-  int nResult = tdsqlite3ExprVectorSize(p);
-  if( nResult==1 ){
-    iResult = tdsqlite3ExprCodeTemp(pParse, p, piFreeable);
-  }else{
-    *piFreeable = 0;
-    if( p->op==TK_SELECT ){
-#if SQLITE_OMIT_SUBQUERY
-      iResult = 0;
-#else
-      iResult = tdsqlite3CodeSubselect(pParse, p);
-#endif
-    }else{
-      int i;
-      iResult = pParse->nMem+1;
-      pParse->nMem += nResult;
-      for(i=0; i<nResult; i++){
-        tdsqlite3ExprCodeFactorable(pParse, p->x.pList->a[i].pExpr, i+iResult);
-      }
-    }
-  }
-  return iResult;
-}
-
-/*
-** Generate code to implement special SQL functions that are implemented
-** in-line rather than by using the usual callbacks.
-*/
-static int exprCodeInlineFunction(
-  Parse *pParse,        /* Parsing context */
-  ExprList *pFarg,      /* List of function arguments */
-  int iFuncId,          /* Function ID.  One of the INTFUNC_... values */
-  int target            /* Store function result in this register */
-){
-  int nFarg;
-  Vdbe *v = pParse->pVdbe;
-  assert( v!=0 );
-  assert( pFarg!=0 );
-  nFarg = pFarg->nExpr;
-  assert( nFarg>0 );  /* All in-line functions have at least one argument */
-  switch( iFuncId ){
-    case INLINEFUNC_coalesce: {
-      /* Attempt a direct implementation of the built-in COALESCE() and
-      ** IFNULL() functions.  This avoids unnecessary evaluation of
-      ** arguments past the first non-NULL argument.
-      */
-      int endCoalesce = tdsqlite3VdbeMakeLabel(pParse);
-      int i;
-      assert( nFarg>=2 );
-      tdsqlite3ExprCode(pParse, pFarg->a[0].pExpr, target);
-      for(i=1; i<nFarg; i++){
-        tdsqlite3VdbeAddOp2(v, OP_NotNull, target, endCoalesce);
-        VdbeCoverage(v);
-        tdsqlite3ExprCode(pParse, pFarg->a[i].pExpr, target);
-      }
-      if( tdsqlite3VdbeGetOp(v, -1)->opcode==OP_Copy ){
-        tdsqlite3VdbeChangeP5(v, 1);  /* Tag trailing OP_Copy as not mergable */
-      }
-      tdsqlite3VdbeResolveLabel(v, endCoalesce);
-      break;
-    }
-
-    default: {   
-      /* The UNLIKELY() function is a no-op.  The result is the value
-      ** of the first argument.
-      */
-      assert( nFarg==1 || nFarg==2 );
-      target = tdsqlite3ExprCodeTarget(pParse, pFarg->a[0].pExpr, target);
-      break;
-    }
-
-  /***********************************************************************
-  ** Test-only SQL functions that are only usable if enabled
-  ** via SQLITE_TESTCTRL_INTERNAL_FUNCTIONS
-  */
-    case INLINEFUNC_expr_compare: {
-      /* Compare two expressions using tdsqlite3ExprCompare() */
-      assert( nFarg==2 );
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 
-         tdsqlite3ExprCompare(0,pFarg->a[0].pExpr, pFarg->a[1].pExpr,-1),
-         target);
-      break;
-    }
-
-    case INLINEFUNC_expr_implies_expr: {
-      /* Compare two expressions using tdsqlite3ExprImpliesExpr() */
-      assert( nFarg==2 );
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 
-         tdsqlite3ExprImpliesExpr(pParse,pFarg->a[0].pExpr, pFarg->a[1].pExpr,-1),
-         target);
-      break;
-    }
-
-    case INLINEFUNC_implies_nonnull_row: {
-      /* REsult of tdsqlite3ExprImpliesNonNullRow() */
-      Expr *pA1;
-      assert( nFarg==2 );
-      pA1 = pFarg->a[1].pExpr;
-      if( pA1->op==TK_COLUMN ){
-        tdsqlite3VdbeAddOp2(v, OP_Integer, 
-           tdsqlite3ExprImpliesNonNullRow(pFarg->a[0].pExpr,pA1->iTable),
-           target);
-      }else{
-        tdsqlite3VdbeAddOp2(v, OP_Null, 0, target);
-      }
-      break;
-    }
-
-#ifdef SQLITE_DEBUG
-    case INLINEFUNC_affinity: {
-      /* The AFFINITY() function evaluates to a string that describes
-      ** the type affinity of the argument.  This is used for testing of
-      ** the SQLite type logic.
-      */
-      const char *azAff[] = { "blob", "text", "numeric", "integer", "real" };
-      char aff;
-      assert( nFarg==1 );
-      aff = tdsqlite3ExprAffinity(pFarg->a[0].pExpr);
-      tdsqlite3VdbeLoadString(v, target, 
-              (aff<=SQLITE_AFF_NONE) ? "none" : azAff[aff-SQLITE_AFF_BLOB]);
-      break;
-    }
-#endif
-  }
-  return target;
-}
-
-
-/*
-** Generate code into the current Vdbe to evaluate the given
-** expression.  Attempt to store the results in register "target".
-** Return the register where results are stored.
-**
-** With this routine, there is no guarantee that results will
-** be stored in target.  The result might be stored in some other
-** register if it is convenient to do so.  The calling function
-** must check the return code and move the results to the desired
-** register.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
-  Vdbe *v = pParse->pVdbe;  /* The VM under construction */
-  int op;                   /* The opcode being coded */
-  int inReg = target;       /* Results stored in register inReg */
-  int regFree1 = 0;         /* If non-zero free this temporary register */
-  int regFree2 = 0;         /* If non-zero free this temporary register */
-  int r1, r2;               /* Various register numbers */
-  Expr tempX;               /* Temporary expression node */
-  int p5 = 0;
-
-  assert( target>0 && target<=pParse->nMem );
-  if( v==0 ){
-    assert( pParse->db->mallocFailed );
-    return 0;
-  }
-
-expr_code_doover:
-  if( pExpr==0 ){
-    op = TK_NULL;
-  }else{
-    op = pExpr->op;
-  }
-  switch( op ){
-    case TK_AGG_COLUMN: {
-      AggInfo *pAggInfo = pExpr->pAggInfo;
-      struct AggInfo_col *pCol = &pAggInfo->aCol[pExpr->iAgg];
-      if( !pAggInfo->directMode ){
-        assert( pCol->iMem>0 );
-        return pCol->iMem;
-      }else if( pAggInfo->useSortingIdx ){
-        tdsqlite3VdbeAddOp3(v, OP_Column, pAggInfo->sortingIdxPTab,
-                              pCol->iSorterColumn, target);
-        return target;
-      }
-      /* Otherwise, fall thru into the TK_COLUMN case */
-    }
-    case TK_COLUMN: {
-      int iTab = pExpr->iTable;
-      int iReg;
-      if( ExprHasProperty(pExpr, EP_FixedCol) ){
-        /* This COLUMN expression is really a constant due to WHERE clause
-        ** constraints, and that constant is coded by the pExpr->pLeft
-        ** expresssion.  However, make sure the constant has the correct
-        ** datatype by applying the Affinity of the table column to the
-        ** constant.
-        */
-        int aff;
-        iReg = tdsqlite3ExprCodeTarget(pParse, pExpr->pLeft,target);
-        if( pExpr->y.pTab ){
-          aff = tdsqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn);
-        }else{
-          aff = pExpr->affExpr;
-        }
-        if( aff>SQLITE_AFF_BLOB ){
-          static const char zAff[] = "B\000C\000D\000E";
-          assert( SQLITE_AFF_BLOB=='A' );
-          assert( SQLITE_AFF_TEXT=='B' );
-          if( iReg!=target ){
-            tdsqlite3VdbeAddOp2(v, OP_SCopy, iReg, target);
-            iReg = target;
-          }
-          tdsqlite3VdbeAddOp4(v, OP_Affinity, iReg, 1, 0,
-                            &zAff[(aff-'B')*2], P4_STATIC);
-        }
-        return iReg;
-      }
-      if( iTab<0 ){
-        if( pParse->iSelfTab<0 ){
-          /* Other columns in the same row for CHECK constraints or
-          ** generated columns or for inserting into partial index.
-          ** The row is unpacked into registers beginning at
-          ** 0-(pParse->iSelfTab).  The rowid (if any) is in a register
-          ** immediately prior to the first column.
-          */
-          Column *pCol;
-          Table *pTab = pExpr->y.pTab;
-          int iSrc;
-          int iCol = pExpr->iColumn;
-          assert( pTab!=0 );
-          assert( iCol>=XN_ROWID );
-          assert( iCol<pTab->nCol );
-          if( iCol<0 ){
-            return -1-pParse->iSelfTab;
-          }
-          pCol = pTab->aCol + iCol;
-          testcase( iCol!=tdsqlite3TableColumnToStorage(pTab,iCol) );
-          iSrc = tdsqlite3TableColumnToStorage(pTab, iCol) - pParse->iSelfTab;
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-          if( pCol->colFlags & COLFLAG_GENERATED ){
-            if( pCol->colFlags & COLFLAG_BUSY ){
-              tdsqlite3ErrorMsg(pParse, "generated column loop on \"%s\"",
-                              pCol->zName);
-              return 0;
-            }
-            pCol->colFlags |= COLFLAG_BUSY;
-            if( pCol->colFlags & COLFLAG_NOTAVAIL ){
-              tdsqlite3ExprCodeGeneratedColumn(pParse, pCol, iSrc);
-            }
-            pCol->colFlags &= ~(COLFLAG_BUSY|COLFLAG_NOTAVAIL);
-            return iSrc;
-          }else
-#endif /* SQLITE_OMIT_GENERATED_COLUMNS */
-          if( pCol->affinity==SQLITE_AFF_REAL ){
-            tdsqlite3VdbeAddOp2(v, OP_SCopy, iSrc, target);
-            tdsqlite3VdbeAddOp1(v, OP_RealAffinity, target);
-            return target;
-          }else{
-            return iSrc;
-          }
-        }else{
-          /* Coding an expression that is part of an index where column names
-          ** in the index refer to the table to which the index belongs */
-          iTab = pParse->iSelfTab - 1;
-        }
-      }
-      iReg = tdsqlite3ExprCodeGetColumn(pParse, pExpr->y.pTab,
-                               pExpr->iColumn, iTab, target,
-                               pExpr->op2);
-      if( pExpr->y.pTab==0 && pExpr->affExpr==SQLITE_AFF_REAL ){
-        tdsqlite3VdbeAddOp1(v, OP_RealAffinity, iReg);
-      }
-      return iReg;
-    }
-    case TK_INTEGER: {
-      codeInteger(pParse, pExpr, 0, target);
-      return target;
-    }
-    case TK_TRUEFALSE: {
-      tdsqlite3VdbeAddOp2(v, OP_Integer, tdsqlite3ExprTruthValue(pExpr), target);
-      return target;
-    }
-#ifndef SQLITE_OMIT_FLOATING_POINT
-    case TK_FLOAT: {
-      assert( !ExprHasProperty(pExpr, EP_IntValue) );
-      codeReal(v, pExpr->u.zToken, 0, target);
-      return target;
-    }
-#endif
-    case TK_STRING: {
-      assert( !ExprHasProperty(pExpr, EP_IntValue) );
-      tdsqlite3VdbeLoadString(v, target, pExpr->u.zToken);
-      return target;
-    }
-    default: {
-      /* Make NULL the default case so that if a bug causes an illegal
-      ** Expr node to be passed into this function, it will be handled
-      ** sanely and not crash.  But keep the assert() to bring the problem
-      ** to the attention of the developers. */
-      assert( op==TK_NULL );
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, target);
-      return target;
-    }
-#ifndef SQLITE_OMIT_BLOB_LITERAL
-    case TK_BLOB: {
-      int n;
-      const char *z;
-      char *zBlob;
-      assert( !ExprHasProperty(pExpr, EP_IntValue) );
-      assert( pExpr->u.zToken[0]=='x' || pExpr->u.zToken[0]=='X' );
-      assert( pExpr->u.zToken[1]=='\'' );
-      z = &pExpr->u.zToken[2];
-      n = tdsqlite3Strlen30(z) - 1;
-      assert( z[n]=='\'' );
-      zBlob = tdsqlite3HexToBlob(tdsqlite3VdbeDb(v), z, n);
-      tdsqlite3VdbeAddOp4(v, OP_Blob, n/2, target, 0, zBlob, P4_DYNAMIC);
-      return target;
-    }
-#endif
-    case TK_VARIABLE: {
-      assert( !ExprHasProperty(pExpr, EP_IntValue) );
-      assert( pExpr->u.zToken!=0 );
-      assert( pExpr->u.zToken[0]!=0 );
-      tdsqlite3VdbeAddOp2(v, OP_Variable, pExpr->iColumn, target);
-      if( pExpr->u.zToken[1]!=0 ){
-        const char *z = tdsqlite3VListNumToName(pParse->pVList, pExpr->iColumn);
-        assert( pExpr->u.zToken[0]=='?' || (z && !strcmp(pExpr->u.zToken, z)) );
-        pParse->pVList[0] = 0; /* Indicate VList may no longer be enlarged */
-        tdsqlite3VdbeAppendP4(v, (char*)z, P4_STATIC);
-      }
-      return target;
-    }
-    case TK_REGISTER: {
-      return pExpr->iTable;
-    }
-#ifndef SQLITE_OMIT_CAST
-    case TK_CAST: {
-      /* Expressions of the form:   CAST(pLeft AS token) */
-      inReg = tdsqlite3ExprCodeTarget(pParse, pExpr->pLeft, target);
-      if( inReg!=target ){
-        tdsqlite3VdbeAddOp2(v, OP_SCopy, inReg, target);
-        inReg = target;
-      }
-      tdsqlite3VdbeAddOp2(v, OP_Cast, target,
-                        tdsqlite3AffinityType(pExpr->u.zToken, 0));
-      return inReg;
-    }
-#endif /* SQLITE_OMIT_CAST */
-    case TK_IS:
-    case TK_ISNOT:
-      op = (op==TK_IS) ? TK_EQ : TK_NE;
-      p5 = SQLITE_NULLEQ;
-      /* fall-through */
-    case TK_LT:
-    case TK_LE:
-    case TK_GT:
-    case TK_GE:
-    case TK_NE:
-    case TK_EQ: {
-      Expr *pLeft = pExpr->pLeft;
-      if( tdsqlite3ExprIsVector(pLeft) ){
-        codeVectorCompare(pParse, pExpr, target, op, p5);
-      }else{
-        r1 = tdsqlite3ExprCodeTemp(pParse, pLeft, &regFree1);
-        r2 = tdsqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
-        codeCompare(pParse, pLeft, pExpr->pRight, op,
-            r1, r2, inReg, SQLITE_STOREP2 | p5,
-            ExprHasProperty(pExpr,EP_Commuted));
-        assert(TK_LT==OP_Lt); testcase(op==OP_Lt); VdbeCoverageIf(v,op==OP_Lt);
-        assert(TK_LE==OP_Le); testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
-        assert(TK_GT==OP_Gt); testcase(op==OP_Gt); VdbeCoverageIf(v,op==OP_Gt);
-        assert(TK_GE==OP_Ge); testcase(op==OP_Ge); VdbeCoverageIf(v,op==OP_Ge);
-        assert(TK_EQ==OP_Eq); testcase(op==OP_Eq); VdbeCoverageIf(v,op==OP_Eq);
-        assert(TK_NE==OP_Ne); testcase(op==OP_Ne); VdbeCoverageIf(v,op==OP_Ne);
-        testcase( regFree1==0 );
-        testcase( regFree2==0 );
-      }
-      break;
-    }
-    case TK_AND:
-    case TK_OR:
-    case TK_PLUS:
-    case TK_STAR:
-    case TK_MINUS:
-    case TK_REM:
-    case TK_BITAND:
-    case TK_BITOR:
-    case TK_SLASH:
-    case TK_LSHIFT:
-    case TK_RSHIFT: 
-    case TK_CONCAT: {
-      assert( TK_AND==OP_And );            testcase( op==TK_AND );
-      assert( TK_OR==OP_Or );              testcase( op==TK_OR );
-      assert( TK_PLUS==OP_Add );           testcase( op==TK_PLUS );
-      assert( TK_MINUS==OP_Subtract );     testcase( op==TK_MINUS );
-      assert( TK_REM==OP_Remainder );      testcase( op==TK_REM );
-      assert( TK_BITAND==OP_BitAnd );      testcase( op==TK_BITAND );
-      assert( TK_BITOR==OP_BitOr );        testcase( op==TK_BITOR );
-      assert( TK_SLASH==OP_Divide );       testcase( op==TK_SLASH );
-      assert( TK_LSHIFT==OP_ShiftLeft );   testcase( op==TK_LSHIFT );
-      assert( TK_RSHIFT==OP_ShiftRight );  testcase( op==TK_RSHIFT );
-      assert( TK_CONCAT==OP_Concat );      testcase( op==TK_CONCAT );
-      r1 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      r2 = tdsqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
-      tdsqlite3VdbeAddOp3(v, op, r2, r1, target);
-      testcase( regFree1==0 );
-      testcase( regFree2==0 );
-      break;
-    }
-    case TK_UMINUS: {
-      Expr *pLeft = pExpr->pLeft;
-      assert( pLeft );
-      if( pLeft->op==TK_INTEGER ){
-        codeInteger(pParse, pLeft, 1, target);
-        return target;
-#ifndef SQLITE_OMIT_FLOATING_POINT
-      }else if( pLeft->op==TK_FLOAT ){
-        assert( !ExprHasProperty(pExpr, EP_IntValue) );
-        codeReal(v, pLeft->u.zToken, 1, target);
-        return target;
-#endif
-      }else{
-        tempX.op = TK_INTEGER;
-        tempX.flags = EP_IntValue|EP_TokenOnly;
-        tempX.u.iValue = 0;
-        r1 = tdsqlite3ExprCodeTemp(pParse, &tempX, &regFree1);
-        r2 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree2);
-        tdsqlite3VdbeAddOp3(v, OP_Subtract, r2, r1, target);
-        testcase( regFree2==0 );
-      }
-      break;
-    }
-    case TK_BITNOT:
-    case TK_NOT: {
-      assert( TK_BITNOT==OP_BitNot );   testcase( op==TK_BITNOT );
-      assert( TK_NOT==OP_Not );         testcase( op==TK_NOT );
-      r1 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      testcase( regFree1==0 );
-      tdsqlite3VdbeAddOp2(v, op, r1, inReg);
-      break;
-    }
-    case TK_TRUTH: {
-      int isTrue;    /* IS TRUE or IS NOT TRUE */
-      int bNormal;   /* IS TRUE or IS FALSE */
-      r1 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      testcase( regFree1==0 );
-      isTrue = tdsqlite3ExprTruthValue(pExpr->pRight);
-      bNormal = pExpr->op2==TK_IS;
-      testcase( isTrue && bNormal);
-      testcase( !isTrue && bNormal);
-      tdsqlite3VdbeAddOp4Int(v, OP_IsTrue, r1, inReg, !isTrue, isTrue ^ bNormal);
-      break;
-    }
-    case TK_ISNULL:
-    case TK_NOTNULL: {
-      int addr;
-      assert( TK_ISNULL==OP_IsNull );   testcase( op==TK_ISNULL );
-      assert( TK_NOTNULL==OP_NotNull ); testcase( op==TK_NOTNULL );
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 1, target);
-      r1 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      testcase( regFree1==0 );
-      addr = tdsqlite3VdbeAddOp1(v, op, r1);
-      VdbeCoverageIf(v, op==TK_ISNULL);
-      VdbeCoverageIf(v, op==TK_NOTNULL);
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, target);
-      tdsqlite3VdbeJumpHere(v, addr);
-      break;
-    }
-    case TK_AGG_FUNCTION: {
-      AggInfo *pInfo = pExpr->pAggInfo;
-      if( pInfo==0 ){
-        assert( !ExprHasProperty(pExpr, EP_IntValue) );
-        tdsqlite3ErrorMsg(pParse, "misuse of aggregate: %s()", pExpr->u.zToken);
-      }else{
-        return pInfo->aFunc[pExpr->iAgg].iMem;
-      }
-      break;
-    }
-    case TK_FUNCTION: {
-      ExprList *pFarg;       /* List of function arguments */
-      int nFarg;             /* Number of function arguments */
-      FuncDef *pDef;         /* The function definition object */
-      const char *zId;       /* The function name */
-      u32 constMask = 0;     /* Mask of function arguments that are constant */
-      int i;                 /* Loop counter */
-      tdsqlite3 *db = pParse->db;  /* The database connection */
-      u8 enc = ENC(db);      /* The text encoding used by this database */
-      CollSeq *pColl = 0;    /* A collating sequence */
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      if( ExprHasProperty(pExpr, EP_WinFunc) ){
-        return pExpr->y.pWin->regResult;
-      }
-#endif
-
-      if( ConstFactorOk(pParse) && tdsqlite3ExprIsConstantNotJoin(pExpr) ){
-        /* SQL functions can be expensive. So try to move constant functions
-        ** out of the inner loop, even if that means an extra OP_Copy. */
-        return tdsqlite3ExprCodeAtInit(pParse, pExpr, -1);
-      }
-      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-      if( ExprHasProperty(pExpr, EP_TokenOnly) ){
-        pFarg = 0;
-      }else{
-        pFarg = pExpr->x.pList;
-      }
-      nFarg = pFarg ? pFarg->nExpr : 0;
-      assert( !ExprHasProperty(pExpr, EP_IntValue) );
-      zId = pExpr->u.zToken;
-      pDef = tdsqlite3FindFunction(db, zId, nFarg, enc, 0);
-#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
-      if( pDef==0 && pParse->explain ){
-        pDef = tdsqlite3FindFunction(db, "unknown", nFarg, enc, 0);
-      }
-#endif
-      if( pDef==0 || pDef->xFinalize!=0 ){
-        tdsqlite3ErrorMsg(pParse, "unknown function: %s()", zId);
-        break;
-      }
-      if( pDef->funcFlags & SQLITE_FUNC_INLINE ){
-        assert( (pDef->funcFlags & SQLITE_FUNC_UNSAFE)==0 );
-        assert( (pDef->funcFlags & SQLITE_FUNC_DIRECT)==0 );
-        return exprCodeInlineFunction(pParse, pFarg,
-             SQLITE_PTR_TO_INT(pDef->pUserData), target);
-      }else if( pDef->funcFlags & (SQLITE_FUNC_DIRECT|SQLITE_FUNC_UNSAFE) ){
-        tdsqlite3ExprFunctionUsable(pParse, pExpr, pDef);
-      }
-
-      for(i=0; i<nFarg; i++){
-        if( i<32 && tdsqlite3ExprIsConstant(pFarg->a[i].pExpr) ){
-          testcase( i==31 );
-          constMask |= MASKBIT32(i);
-        }
-        if( (pDef->funcFlags & SQLITE_FUNC_NEEDCOLL)!=0 && !pColl ){
-          pColl = tdsqlite3ExprCollSeq(pParse, pFarg->a[i].pExpr);
-        }
-      }
-      if( pFarg ){
-        if( constMask ){
-          r1 = pParse->nMem+1;
-          pParse->nMem += nFarg;
-        }else{
-          r1 = tdsqlite3GetTempRange(pParse, nFarg);
-        }
-
-        /* For length() and typeof() functions with a column argument,
-        ** set the P5 parameter to the OP_Column opcode to OPFLAG_LENGTHARG
-        ** or OPFLAG_TYPEOFARG respectively, to avoid unnecessary data
-        ** loading.
-        */
-        if( (pDef->funcFlags & (SQLITE_FUNC_LENGTH|SQLITE_FUNC_TYPEOF))!=0 ){
-          u8 exprOp;
-          assert( nFarg==1 );
-          assert( pFarg->a[0].pExpr!=0 );
-          exprOp = pFarg->a[0].pExpr->op;
-          if( exprOp==TK_COLUMN || exprOp==TK_AGG_COLUMN ){
-            assert( SQLITE_FUNC_LENGTH==OPFLAG_LENGTHARG );
-            assert( SQLITE_FUNC_TYPEOF==OPFLAG_TYPEOFARG );
-            testcase( pDef->funcFlags & OPFLAG_LENGTHARG );
-            pFarg->a[0].pExpr->op2 = 
-                  pDef->funcFlags & (OPFLAG_LENGTHARG|OPFLAG_TYPEOFARG);
-          }
-        }
-
-        tdsqlite3ExprCodeExprList(pParse, pFarg, r1, 0,
-                                SQLITE_ECEL_DUP|SQLITE_ECEL_FACTOR);
-      }else{
-        r1 = 0;
-      }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-      /* Possibly overload the function if the first argument is
-      ** a virtual table column.
-      **
-      ** For infix functions (LIKE, GLOB, REGEXP, and MATCH) use the
-      ** second argument, not the first, as the argument to test to
-      ** see if it is a column in a virtual table.  This is done because
-      ** the left operand of infix functions (the operand we want to
-      ** control overloading) ends up as the second argument to the
-      ** function.  The expression "A glob B" is equivalent to 
-      ** "glob(B,A).  We want to use the A in "A glob B" to test
-      ** for function overloading.  But we use the B term in "glob(B,A)".
-      */
-      if( nFarg>=2 && ExprHasProperty(pExpr, EP_InfixFunc) ){
-        pDef = tdsqlite3VtabOverloadFunction(db, pDef, nFarg, pFarg->a[1].pExpr);
-      }else if( nFarg>0 ){
-        pDef = tdsqlite3VtabOverloadFunction(db, pDef, nFarg, pFarg->a[0].pExpr);
-      }
-#endif
-      if( pDef->funcFlags & SQLITE_FUNC_NEEDCOLL ){
-        if( !pColl ) pColl = db->pDfltColl; 
-        tdsqlite3VdbeAddOp4(v, OP_CollSeq, 0, 0, 0, (char *)pColl, P4_COLLSEQ);
-      }
-#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC
-      if( pDef->funcFlags & SQLITE_FUNC_OFFSET ){
-        Expr *pArg = pFarg->a[0].pExpr;
-        if( pArg->op==TK_COLUMN ){
-          tdsqlite3VdbeAddOp3(v, OP_Offset, pArg->iTable, pArg->iColumn, target);
-        }else{
-          tdsqlite3VdbeAddOp2(v, OP_Null, 0, target);
-        }
-      }else
-#endif
-      {
-        tdsqlite3VdbeAddFunctionCall(pParse, constMask, r1, target, nFarg,
-                                   pDef, pExpr->op2);
-      }
-      if( nFarg ){
-        if( constMask==0 ){
-          tdsqlite3ReleaseTempRange(pParse, r1, nFarg);
-        }else{
-          tdsqlite3VdbeReleaseRegisters(pParse, r1, nFarg, constMask, 1);
-        }
-      }
-      return target;
-    }
-#ifndef SQLITE_OMIT_SUBQUERY
-    case TK_EXISTS:
-    case TK_SELECT: {
-      int nCol;
-      testcase( op==TK_EXISTS );
-      testcase( op==TK_SELECT );
-      if( op==TK_SELECT && (nCol = pExpr->x.pSelect->pEList->nExpr)!=1 ){
-        tdsqlite3SubselectError(pParse, nCol, 1);
-      }else{
-        return tdsqlite3CodeSubselect(pParse, pExpr);
-      }
-      break;
-    }
-    case TK_SELECT_COLUMN: {
-      int n;
-      if( pExpr->pLeft->iTable==0 ){
-        pExpr->pLeft->iTable = tdsqlite3CodeSubselect(pParse, pExpr->pLeft);
-      }
-      assert( pExpr->iTable==0 || pExpr->pLeft->op==TK_SELECT );
-      if( pExpr->iTable!=0
-       && pExpr->iTable!=(n = tdsqlite3ExprVectorSize(pExpr->pLeft))
-      ){
-        tdsqlite3ErrorMsg(pParse, "%d columns assigned %d values",
-                                pExpr->iTable, n);
-      }
-      return pExpr->pLeft->iTable + pExpr->iColumn;
-    }
-    case TK_IN: {
-      int destIfFalse = tdsqlite3VdbeMakeLabel(pParse);
-      int destIfNull = tdsqlite3VdbeMakeLabel(pParse);
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, target);
-      tdsqlite3ExprCodeIN(pParse, pExpr, destIfFalse, destIfNull);
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 1, target);
-      tdsqlite3VdbeResolveLabel(v, destIfFalse);
-      tdsqlite3VdbeAddOp2(v, OP_AddImm, target, 0);
-      tdsqlite3VdbeResolveLabel(v, destIfNull);
-      return target;
-    }
-#endif /* SQLITE_OMIT_SUBQUERY */
-
-
-    /*
-    **    x BETWEEN y AND z
-    **
-    ** This is equivalent to
-    **
-    **    x>=y AND x<=z
-    **
-    ** X is stored in pExpr->pLeft.
-    ** Y is stored in pExpr->pList->a[0].pExpr.
-    ** Z is stored in pExpr->pList->a[1].pExpr.
-    */
-    case TK_BETWEEN: {
-      exprCodeBetween(pParse, pExpr, target, 0, 0);
-      return target;
-    }
-    case TK_SPAN:
-    case TK_COLLATE: 
-    case TK_UPLUS: {
-      pExpr = pExpr->pLeft;
-      goto expr_code_doover; /* 2018-04-28: Prevent deep recursion. OSSFuzz. */
-    }
-
-    case TK_TRIGGER: {
-      /* If the opcode is TK_TRIGGER, then the expression is a reference
-      ** to a column in the new.* or old.* pseudo-tables available to
-      ** trigger programs. In this case Expr.iTable is set to 1 for the
-      ** new.* pseudo-table, or 0 for the old.* pseudo-table. Expr.iColumn
-      ** is set to the column of the pseudo-table to read, or to -1 to
-      ** read the rowid field.
-      **
-      ** The expression is implemented using an OP_Param opcode. The p1
-      ** parameter is set to 0 for an old.rowid reference, or to (i+1)
-      ** to reference another column of the old.* pseudo-table, where 
-      ** i is the index of the column. For a new.rowid reference, p1 is
-      ** set to (n+1), where n is the number of columns in each pseudo-table.
-      ** For a reference to any other column in the new.* pseudo-table, p1
-      ** is set to (n+2+i), where n and i are as defined previously. For
-      ** example, if the table on which triggers are being fired is
-      ** declared as:
-      **
-      **   CREATE TABLE t1(a, b);
-      **
-      ** Then p1 is interpreted as follows:
-      **
-      **   p1==0   ->    old.rowid     p1==3   ->    new.rowid
-      **   p1==1   ->    old.a         p1==4   ->    new.a
-      **   p1==2   ->    old.b         p1==5   ->    new.b       
-      */
-      Table *pTab = pExpr->y.pTab;
-      int iCol = pExpr->iColumn;
-      int p1 = pExpr->iTable * (pTab->nCol+1) + 1 
-                     + tdsqlite3TableColumnToStorage(pTab, iCol);
-
-      assert( pExpr->iTable==0 || pExpr->iTable==1 );
-      assert( iCol>=-1 && iCol<pTab->nCol );
-      assert( pTab->iPKey<0 || iCol!=pTab->iPKey );
-      assert( p1>=0 && p1<(pTab->nCol*2+2) );
-
-      tdsqlite3VdbeAddOp2(v, OP_Param, p1, target);
-      VdbeComment((v, "r[%d]=%s.%s", target,
-        (pExpr->iTable ? "new" : "old"),
-        (pExpr->iColumn<0 ? "rowid" : pExpr->y.pTab->aCol[iCol].zName)
-      ));
-
-#ifndef SQLITE_OMIT_FLOATING_POINT
-      /* If the column has REAL affinity, it may currently be stored as an
-      ** integer. Use OP_RealAffinity to make sure it is really real.
-      **
-      ** EVIDENCE-OF: R-60985-57662 SQLite will convert the value back to
-      ** floating point when extracting it from the record.  */
-      if( iCol>=0 && pTab->aCol[iCol].affinity==SQLITE_AFF_REAL ){
-        tdsqlite3VdbeAddOp1(v, OP_RealAffinity, target);
-      }
-#endif
-      break;
-    }
-
-    case TK_VECTOR: {
-      tdsqlite3ErrorMsg(pParse, "row value misused");
-      break;
-    }
-
-    /* TK_IF_NULL_ROW Expr nodes are inserted ahead of expressions
-    ** that derive from the right-hand table of a LEFT JOIN.  The
-    ** Expr.iTable value is the table number for the right-hand table.
-    ** The expression is only evaluated if that table is not currently
-    ** on a LEFT JOIN NULL row.
-    */
-    case TK_IF_NULL_ROW: {
-      int addrINR;
-      u8 okConstFactor = pParse->okConstFactor;
-      addrINR = tdsqlite3VdbeAddOp1(v, OP_IfNullRow, pExpr->iTable);
-      /* Temporarily disable factoring of constant expressions, since
-      ** even though expressions may appear to be constant, they are not
-      ** really constant because they originate from the right-hand side
-      ** of a LEFT JOIN. */
-      pParse->okConstFactor = 0;
-      inReg = tdsqlite3ExprCodeTarget(pParse, pExpr->pLeft, target);
-      pParse->okConstFactor = okConstFactor;
-      tdsqlite3VdbeJumpHere(v, addrINR);
-      tdsqlite3VdbeChangeP3(v, addrINR, inReg);
-      break;
-    }
-
-    /*
-    ** Form A:
-    **   CASE x WHEN e1 THEN r1 WHEN e2 THEN r2 ... WHEN eN THEN rN ELSE y END
-    **
-    ** Form B:
-    **   CASE WHEN e1 THEN r1 WHEN e2 THEN r2 ... WHEN eN THEN rN ELSE y END
-    **
-    ** Form A is can be transformed into the equivalent form B as follows:
-    **   CASE WHEN x=e1 THEN r1 WHEN x=e2 THEN r2 ...
-    **        WHEN x=eN THEN rN ELSE y END
-    **
-    ** X (if it exists) is in pExpr->pLeft.
-    ** Y is in the last element of pExpr->x.pList if pExpr->x.pList->nExpr is
-    ** odd.  The Y is also optional.  If the number of elements in x.pList
-    ** is even, then Y is omitted and the "otherwise" result is NULL.
-    ** Ei is in pExpr->pList->a[i*2] and Ri is pExpr->pList->a[i*2+1].
-    **
-    ** The result of the expression is the Ri for the first matching Ei,
-    ** or if there is no matching Ei, the ELSE term Y, or if there is
-    ** no ELSE term, NULL.
-    */
-    case TK_CASE: {
-      int endLabel;                     /* GOTO label for end of CASE stmt */
-      int nextCase;                     /* GOTO label for next WHEN clause */
-      int nExpr;                        /* 2x number of WHEN terms */
-      int i;                            /* Loop counter */
-      ExprList *pEList;                 /* List of WHEN terms */
-      struct ExprList_item *aListelem;  /* Array of WHEN terms */
-      Expr opCompare;                   /* The X==Ei expression */
-      Expr *pX;                         /* The X expression */
-      Expr *pTest = 0;                  /* X==Ei (form A) or just Ei (form B) */
-      Expr *pDel = 0;
-      tdsqlite3 *db = pParse->db;
-
-      assert( !ExprHasProperty(pExpr, EP_xIsSelect) && pExpr->x.pList );
-      assert(pExpr->x.pList->nExpr > 0);
-      pEList = pExpr->x.pList;
-      aListelem = pEList->a;
-      nExpr = pEList->nExpr;
-      endLabel = tdsqlite3VdbeMakeLabel(pParse);
-      if( (pX = pExpr->pLeft)!=0 ){
-        pDel = tdsqlite3ExprDup(db, pX, 0);
-        if( db->mallocFailed ){
-          tdsqlite3ExprDelete(db, pDel);
-          break;
-        }
-        testcase( pX->op==TK_COLUMN );
-        exprToRegister(pDel, exprCodeVector(pParse, pDel, &regFree1));
-        testcase( regFree1==0 );
-        memset(&opCompare, 0, sizeof(opCompare));
-        opCompare.op = TK_EQ;
-        opCompare.pLeft = pDel;
-        pTest = &opCompare;
-        /* Ticket b351d95f9cd5ef17e9d9dbae18f5ca8611190001:
-        ** The value in regFree1 might get SCopy-ed into the file result.
-        ** So make sure that the regFree1 register is not reused for other
-        ** purposes and possibly overwritten.  */
-        regFree1 = 0;
-      }
-      for(i=0; i<nExpr-1; i=i+2){
-        if( pX ){
-          assert( pTest!=0 );
-          opCompare.pRight = aListelem[i].pExpr;
-        }else{
-          pTest = aListelem[i].pExpr;
-        }
-        nextCase = tdsqlite3VdbeMakeLabel(pParse);
-        testcase( pTest->op==TK_COLUMN );
-        tdsqlite3ExprIfFalse(pParse, pTest, nextCase, SQLITE_JUMPIFNULL);
-        testcase( aListelem[i+1].pExpr->op==TK_COLUMN );
-        tdsqlite3ExprCode(pParse, aListelem[i+1].pExpr, target);
-        tdsqlite3VdbeGoto(v, endLabel);
-        tdsqlite3VdbeResolveLabel(v, nextCase);
-      }
-      if( (nExpr&1)!=0 ){
-        tdsqlite3ExprCode(pParse, pEList->a[nExpr-1].pExpr, target);
-      }else{
-        tdsqlite3VdbeAddOp2(v, OP_Null, 0, target);
-      }
-      tdsqlite3ExprDelete(db, pDel);
-      tdsqlite3VdbeResolveLabel(v, endLabel);
-      break;
-    }
-#ifndef SQLITE_OMIT_TRIGGER
-    case TK_RAISE: {
-      assert( pExpr->affExpr==OE_Rollback 
-           || pExpr->affExpr==OE_Abort
-           || pExpr->affExpr==OE_Fail
-           || pExpr->affExpr==OE_Ignore
-      );
-      if( !pParse->pTriggerTab ){
-        tdsqlite3ErrorMsg(pParse,
-                       "RAISE() may only be used within a trigger-program");
-        return 0;
-      }
-      if( pExpr->affExpr==OE_Abort ){
-        tdsqlite3MayAbort(pParse);
-      }
-      assert( !ExprHasProperty(pExpr, EP_IntValue) );
-      if( pExpr->affExpr==OE_Ignore ){
-        tdsqlite3VdbeAddOp4(
-            v, OP_Halt, SQLITE_OK, OE_Ignore, 0, pExpr->u.zToken,0);
-        VdbeCoverage(v);
-      }else{
-        tdsqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_TRIGGER,
-                              pExpr->affExpr, pExpr->u.zToken, 0, 0);
-      }
-
-      break;
-    }
-#endif
-  }
-  tdsqlite3ReleaseTempReg(pParse, regFree1);
-  tdsqlite3ReleaseTempReg(pParse, regFree2);
-  return inReg;
-}
-
-/*
-** Factor out the code of the given expression to initialization time.
-**
-** If regDest>=0 then the result is always stored in that register and the
-** result is not reusable.  If regDest<0 then this routine is free to 
-** store the value whereever it wants.  The register where the expression 
-** is stored is returned.  When regDest<0, two identical expressions will
-** code to the same register.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCodeAtInit(
-  Parse *pParse,    /* Parsing context */
-  Expr *pExpr,      /* The expression to code when the VDBE initializes */
-  int regDest       /* Store the value in this register */
-){
-  ExprList *p;
-  assert( ConstFactorOk(pParse) );
-  p = pParse->pConstExpr;
-  if( regDest<0 && p ){
-    struct ExprList_item *pItem;
-    int i;
-    for(pItem=p->a, i=p->nExpr; i>0; pItem++, i--){
-      if( pItem->reusable && tdsqlite3ExprCompare(0,pItem->pExpr,pExpr,-1)==0 ){
-        return pItem->u.iConstExprReg;
-      }
-    }
-  }
-  pExpr = tdsqlite3ExprDup(pParse->db, pExpr, 0);
-  p = tdsqlite3ExprListAppend(pParse, p, pExpr);
-  if( p ){
-     struct ExprList_item *pItem = &p->a[p->nExpr-1];
-     pItem->reusable = regDest<0;
-     if( regDest<0 ) regDest = ++pParse->nMem;
-     pItem->u.iConstExprReg = regDest;
-  }
-  pParse->pConstExpr = p;
-  return regDest;
-}
-
-/*
-** Generate code to evaluate an expression and store the results
-** into a register.  Return the register number where the results
-** are stored.
-**
-** If the register is a temporary register that can be deallocated,
-** then write its number into *pReg.  If the result register is not
-** a temporary, then set *pReg to zero.
-**
-** If pExpr is a constant, then this routine might generate this
-** code to fill the register in the initialization section of the
-** VDBE program, in order to factor it out of the evaluation loop.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCodeTemp(Parse *pParse, Expr *pExpr, int *pReg){
-  int r2;
-  pExpr = tdsqlite3ExprSkipCollateAndLikely(pExpr);
-  if( ConstFactorOk(pParse)
-   && pExpr->op!=TK_REGISTER
-   && tdsqlite3ExprIsConstantNotJoin(pExpr)
-  ){
-    *pReg  = 0;
-    r2 = tdsqlite3ExprCodeAtInit(pParse, pExpr, -1);
-  }else{
-    int r1 = tdsqlite3GetTempReg(pParse);
-    r2 = tdsqlite3ExprCodeTarget(pParse, pExpr, r1);
-    if( r2==r1 ){
-      *pReg = r1;
-    }else{
-      tdsqlite3ReleaseTempReg(pParse, r1);
-      *pReg = 0;
-    }
-  }
-  return r2;
-}
-
-/*
-** Generate code that will evaluate expression pExpr and store the
-** results in register target.  The results are guaranteed to appear
-** in register target.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprCode(Parse *pParse, Expr *pExpr, int target){
-  int inReg;
-
-  assert( target>0 && target<=pParse->nMem );
-  inReg = tdsqlite3ExprCodeTarget(pParse, pExpr, target);
-  assert( pParse->pVdbe!=0 || pParse->db->mallocFailed );
-  if( inReg!=target && pParse->pVdbe ){
-    u8 op;
-    if( ExprHasProperty(pExpr,EP_Subquery) ){
-      op = OP_Copy;
-    }else{
-      op = OP_SCopy;
-    }
-    tdsqlite3VdbeAddOp2(pParse->pVdbe, op, inReg, target);
-  }
-}
-
-/*
-** Make a transient copy of expression pExpr and then code it using
-** tdsqlite3ExprCode().  This routine works just like tdsqlite3ExprCode()
-** except that the input expression is guaranteed to be unchanged.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprCodeCopy(Parse *pParse, Expr *pExpr, int target){
-  tdsqlite3 *db = pParse->db;
-  pExpr = tdsqlite3ExprDup(db, pExpr, 0);
-  if( !db->mallocFailed ) tdsqlite3ExprCode(pParse, pExpr, target);
-  tdsqlite3ExprDelete(db, pExpr);
-}
-
-/*
-** Generate code that will evaluate expression pExpr and store the
-** results in register target.  The results are guaranteed to appear
-** in register target.  If the expression is constant, then this routine
-** might choose to code the expression at initialization time.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprCodeFactorable(Parse *pParse, Expr *pExpr, int target){
-  if( pParse->okConstFactor && tdsqlite3ExprIsConstantNotJoin(pExpr) ){
-    tdsqlite3ExprCodeAtInit(pParse, pExpr, target);
-  }else{
-    tdsqlite3ExprCode(pParse, pExpr, target);
-  }
-}
-
-/*
-** Generate code that pushes the value of every element of the given
-** expression list into a sequence of registers beginning at target.
-**
-** Return the number of elements evaluated.  The number returned will
-** usually be pList->nExpr but might be reduced if SQLITE_ECEL_OMITREF
-** is defined.
-**
-** The SQLITE_ECEL_DUP flag prevents the arguments from being
-** filled using OP_SCopy.  OP_Copy must be used instead.
-**
-** The SQLITE_ECEL_FACTOR argument allows constant arguments to be
-** factored out into initialization code.
-**
-** The SQLITE_ECEL_REF flag means that expressions in the list with
-** ExprList.a[].u.x.iOrderByCol>0 have already been evaluated and stored
-** in registers at srcReg, and so the value can be copied from there.
-** If SQLITE_ECEL_OMITREF is also set, then the values with u.x.iOrderByCol>0
-** are simply omitted rather than being copied from srcReg.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCodeExprList(
-  Parse *pParse,     /* Parsing context */
-  ExprList *pList,   /* The expression list to be coded */
-  int target,        /* Where to write results */
-  int srcReg,        /* Source registers if SQLITE_ECEL_REF */
-  u8 flags           /* SQLITE_ECEL_* flags */
-){
-  struct ExprList_item *pItem;
-  int i, j, n;
-  u8 copyOp = (flags & SQLITE_ECEL_DUP) ? OP_Copy : OP_SCopy;
-  Vdbe *v = pParse->pVdbe;
-  assert( pList!=0 );
-  assert( target>0 );
-  assert( pParse->pVdbe!=0 );  /* Never gets this far otherwise */
-  n = pList->nExpr;
-  if( !ConstFactorOk(pParse) ) flags &= ~SQLITE_ECEL_FACTOR;
-  for(pItem=pList->a, i=0; i<n; i++, pItem++){
-    Expr *pExpr = pItem->pExpr;
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-    if( pItem->bSorterRef ){
-      i--;
-      n--;
-    }else
-#endif
-    if( (flags & SQLITE_ECEL_REF)!=0 && (j = pItem->u.x.iOrderByCol)>0 ){
-      if( flags & SQLITE_ECEL_OMITREF ){
-        i--;
-        n--;
-      }else{
-        tdsqlite3VdbeAddOp2(v, copyOp, j+srcReg-1, target+i);
-      }
-    }else if( (flags & SQLITE_ECEL_FACTOR)!=0
-           && tdsqlite3ExprIsConstantNotJoin(pExpr)
-    ){
-      tdsqlite3ExprCodeAtInit(pParse, pExpr, target+i);
-    }else{
-      int inReg = tdsqlite3ExprCodeTarget(pParse, pExpr, target+i);
-      if( inReg!=target+i ){
-        VdbeOp *pOp;
-        if( copyOp==OP_Copy
-         && (pOp=tdsqlite3VdbeGetOp(v, -1))->opcode==OP_Copy
-         && pOp->p1+pOp->p3+1==inReg
-         && pOp->p2+pOp->p3+1==target+i
-         && pOp->p5==0  /* The do-not-merge flag must be clear */
-        ){
-          pOp->p3++;
-        }else{
-          tdsqlite3VdbeAddOp2(v, copyOp, inReg, target+i);
-        }
-      }
-    }
-  }
-  return n;
-}
-
-/*
-** Generate code for a BETWEEN operator.
-**
-**    x BETWEEN y AND z
-**
-** The above is equivalent to 
-**
-**    x>=y AND x<=z
-**
-** Code it as such, taking care to do the common subexpression
-** elimination of x.
-**
-** The xJumpIf parameter determines details:
-**
-**    NULL:                   Store the boolean result in reg[dest]
-**    tdsqlite3ExprIfTrue:      Jump to dest if true
-**    tdsqlite3ExprIfFalse:     Jump to dest if false
-**
-** The jumpIfNull parameter is ignored if xJumpIf is NULL.
-*/
-static void exprCodeBetween(
-  Parse *pParse,    /* Parsing and code generating context */
-  Expr *pExpr,      /* The BETWEEN expression */
-  int dest,         /* Jump destination or storage location */
-  void (*xJump)(Parse*,Expr*,int,int), /* Action to take */
-  int jumpIfNull    /* Take the jump if the BETWEEN is NULL */
-){
-  Expr exprAnd;     /* The AND operator in  x>=y AND x<=z  */
-  Expr compLeft;    /* The  x>=y  term */
-  Expr compRight;   /* The  x<=z  term */
-  int regFree1 = 0; /* Temporary use register */
-  Expr *pDel = 0;
-  tdsqlite3 *db = pParse->db;
-
-  memset(&compLeft, 0, sizeof(Expr));
-  memset(&compRight, 0, sizeof(Expr));
-  memset(&exprAnd, 0, sizeof(Expr));
-
-  assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-  pDel = tdsqlite3ExprDup(db, pExpr->pLeft, 0);
-  if( db->mallocFailed==0 ){
-    exprAnd.op = TK_AND;
-    exprAnd.pLeft = &compLeft;
-    exprAnd.pRight = &compRight;
-    compLeft.op = TK_GE;
-    compLeft.pLeft = pDel;
-    compLeft.pRight = pExpr->x.pList->a[0].pExpr;
-    compRight.op = TK_LE;
-    compRight.pLeft = pDel;
-    compRight.pRight = pExpr->x.pList->a[1].pExpr;
-    exprToRegister(pDel, exprCodeVector(pParse, pDel, &regFree1));
-    if( xJump ){
-      xJump(pParse, &exprAnd, dest, jumpIfNull);
-    }else{
-      /* Mark the expression is being from the ON or USING clause of a join
-      ** so that the tdsqlite3ExprCodeTarget() routine will not attempt to move
-      ** it into the Parse.pConstExpr list.  We should use a new bit for this,
-      ** for clarity, but we are out of bits in the Expr.flags field so we
-      ** have to reuse the EP_FromJoin bit.  Bummer. */
-      pDel->flags |= EP_FromJoin;
-      tdsqlite3ExprCodeTarget(pParse, &exprAnd, dest);
-    }
-    tdsqlite3ReleaseTempReg(pParse, regFree1);
-  }
-  tdsqlite3ExprDelete(db, pDel);
-
-  /* Ensure adequate test coverage */
-  testcase( xJump==tdsqlite3ExprIfTrue  && jumpIfNull==0 && regFree1==0 );
-  testcase( xJump==tdsqlite3ExprIfTrue  && jumpIfNull==0 && regFree1!=0 );
-  testcase( xJump==tdsqlite3ExprIfTrue  && jumpIfNull!=0 && regFree1==0 );
-  testcase( xJump==tdsqlite3ExprIfTrue  && jumpIfNull!=0 && regFree1!=0 );
-  testcase( xJump==tdsqlite3ExprIfFalse && jumpIfNull==0 && regFree1==0 );
-  testcase( xJump==tdsqlite3ExprIfFalse && jumpIfNull==0 && regFree1!=0 );
-  testcase( xJump==tdsqlite3ExprIfFalse && jumpIfNull!=0 && regFree1==0 );
-  testcase( xJump==tdsqlite3ExprIfFalse && jumpIfNull!=0 && regFree1!=0 );
-  testcase( xJump==0 );
-}
-
-/*
-** Generate code for a boolean expression such that a jump is made
-** to the label "dest" if the expression is true but execution
-** continues straight thru if the expression is false.
-**
-** If the expression evaluates to NULL (neither true nor false), then
-** take the jump if the jumpIfNull flag is SQLITE_JUMPIFNULL.
-**
-** This code depends on the fact that certain token values (ex: TK_EQ)
-** are the same as opcode values (ex: OP_Eq) that implement the corresponding
-** operation.  Special comments in vdbe.c and the mkopcodeh.awk script in
-** the make process cause these values to align.  Assert()s in the code
-** below verify that the numbers are aligned correctly.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
-  Vdbe *v = pParse->pVdbe;
-  int op = 0;
-  int regFree1 = 0;
-  int regFree2 = 0;
-  int r1, r2;
-
-  assert( jumpIfNull==SQLITE_JUMPIFNULL || jumpIfNull==0 );
-  if( NEVER(v==0) )     return;  /* Existence of VDBE checked by caller */
-  if( NEVER(pExpr==0) ) return;  /* No way this can happen */
-  op = pExpr->op;
-  switch( op ){
-    case TK_AND:
-    case TK_OR: {
-      Expr *pAlt = tdsqlite3ExprSimplifiedAndOr(pExpr);
-      if( pAlt!=pExpr ){
-        tdsqlite3ExprIfTrue(pParse, pAlt, dest, jumpIfNull);
-      }else if( op==TK_AND ){
-        int d2 = tdsqlite3VdbeMakeLabel(pParse);
-        testcase( jumpIfNull==0 );
-        tdsqlite3ExprIfFalse(pParse, pExpr->pLeft, d2,
-                           jumpIfNull^SQLITE_JUMPIFNULL);
-        tdsqlite3ExprIfTrue(pParse, pExpr->pRight, dest, jumpIfNull);
-        tdsqlite3VdbeResolveLabel(v, d2);
-      }else{
-        testcase( jumpIfNull==0 );
-        tdsqlite3ExprIfTrue(pParse, pExpr->pLeft, dest, jumpIfNull);
-        tdsqlite3ExprIfTrue(pParse, pExpr->pRight, dest, jumpIfNull);
-      }
-      break;
-    }
-    case TK_NOT: {
-      testcase( jumpIfNull==0 );
-      tdsqlite3ExprIfFalse(pParse, pExpr->pLeft, dest, jumpIfNull);
-      break;
-    }
-    case TK_TRUTH: {
-      int isNot;      /* IS NOT TRUE or IS NOT FALSE */
-      int isTrue;     /* IS TRUE or IS NOT TRUE */
-      testcase( jumpIfNull==0 );
-      isNot = pExpr->op2==TK_ISNOT;
-      isTrue = tdsqlite3ExprTruthValue(pExpr->pRight);
-      testcase( isTrue && isNot );
-      testcase( !isTrue && isNot );
-      if( isTrue ^ isNot ){
-        tdsqlite3ExprIfTrue(pParse, pExpr->pLeft, dest,
-                          isNot ? SQLITE_JUMPIFNULL : 0);
-      }else{
-        tdsqlite3ExprIfFalse(pParse, pExpr->pLeft, dest,
-                           isNot ? SQLITE_JUMPIFNULL : 0);
-      }
-      break;
-    }
-    case TK_IS:
-    case TK_ISNOT:
-      testcase( op==TK_IS );
-      testcase( op==TK_ISNOT );
-      op = (op==TK_IS) ? TK_EQ : TK_NE;
-      jumpIfNull = SQLITE_NULLEQ;
-      /* Fall thru */
-    case TK_LT:
-    case TK_LE:
-    case TK_GT:
-    case TK_GE:
-    case TK_NE:
-    case TK_EQ: {
-      if( tdsqlite3ExprIsVector(pExpr->pLeft) ) goto default_expr;
-      testcase( jumpIfNull==0 );
-      r1 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      r2 = tdsqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
-      codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
-                  r1, r2, dest, jumpIfNull, ExprHasProperty(pExpr,EP_Commuted));
-      assert(TK_LT==OP_Lt); testcase(op==OP_Lt); VdbeCoverageIf(v,op==OP_Lt);
-      assert(TK_LE==OP_Le); testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
-      assert(TK_GT==OP_Gt); testcase(op==OP_Gt); VdbeCoverageIf(v,op==OP_Gt);
-      assert(TK_GE==OP_Ge); testcase(op==OP_Ge); VdbeCoverageIf(v,op==OP_Ge);
-      assert(TK_EQ==OP_Eq); testcase(op==OP_Eq);
-      VdbeCoverageIf(v, op==OP_Eq && jumpIfNull==SQLITE_NULLEQ);
-      VdbeCoverageIf(v, op==OP_Eq && jumpIfNull!=SQLITE_NULLEQ);
-      assert(TK_NE==OP_Ne); testcase(op==OP_Ne);
-      VdbeCoverageIf(v, op==OP_Ne && jumpIfNull==SQLITE_NULLEQ);
-      VdbeCoverageIf(v, op==OP_Ne && jumpIfNull!=SQLITE_NULLEQ);
-      testcase( regFree1==0 );
-      testcase( regFree2==0 );
-      break;
-    }
-    case TK_ISNULL:
-    case TK_NOTNULL: {
-      assert( TK_ISNULL==OP_IsNull );   testcase( op==TK_ISNULL );
-      assert( TK_NOTNULL==OP_NotNull ); testcase( op==TK_NOTNULL );
-      r1 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      tdsqlite3VdbeAddOp2(v, op, r1, dest);
-      VdbeCoverageIf(v, op==TK_ISNULL);
-      VdbeCoverageIf(v, op==TK_NOTNULL);
-      testcase( regFree1==0 );
-      break;
-    }
-    case TK_BETWEEN: {
-      testcase( jumpIfNull==0 );
-      exprCodeBetween(pParse, pExpr, dest, tdsqlite3ExprIfTrue, jumpIfNull);
-      break;
-    }
-#ifndef SQLITE_OMIT_SUBQUERY
-    case TK_IN: {
-      int destIfFalse = tdsqlite3VdbeMakeLabel(pParse);
-      int destIfNull = jumpIfNull ? dest : destIfFalse;
-      tdsqlite3ExprCodeIN(pParse, pExpr, destIfFalse, destIfNull);
-      tdsqlite3VdbeGoto(v, dest);
-      tdsqlite3VdbeResolveLabel(v, destIfFalse);
-      break;
-    }
-#endif
-    default: {
-    default_expr:
-      if( ExprAlwaysTrue(pExpr) ){
-        tdsqlite3VdbeGoto(v, dest);
-      }else if( ExprAlwaysFalse(pExpr) ){
-        /* No-op */
-      }else{
-        r1 = tdsqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
-        tdsqlite3VdbeAddOp3(v, OP_If, r1, dest, jumpIfNull!=0);
-        VdbeCoverage(v);
-        testcase( regFree1==0 );
-        testcase( jumpIfNull==0 );
-      }
-      break;
-    }
-  }
-  tdsqlite3ReleaseTempReg(pParse, regFree1);
-  tdsqlite3ReleaseTempReg(pParse, regFree2);  
-}
-
-/*
-** Generate code for a boolean expression such that a jump is made
-** to the label "dest" if the expression is false but execution
-** continues straight thru if the expression is true.
-**
-** If the expression evaluates to NULL (neither true nor false) then
-** jump if jumpIfNull is SQLITE_JUMPIFNULL or fall through if jumpIfNull
-** is 0.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
-  Vdbe *v = pParse->pVdbe;
-  int op = 0;
-  int regFree1 = 0;
-  int regFree2 = 0;
-  int r1, r2;
-
-  assert( jumpIfNull==SQLITE_JUMPIFNULL || jumpIfNull==0 );
-  if( NEVER(v==0) ) return; /* Existence of VDBE checked by caller */
-  if( pExpr==0 )    return;
-
-  /* The value of pExpr->op and op are related as follows:
-  **
-  **       pExpr->op            op
-  **       ---------          ----------
-  **       TK_ISNULL          OP_NotNull
-  **       TK_NOTNULL         OP_IsNull
-  **       TK_NE              OP_Eq
-  **       TK_EQ              OP_Ne
-  **       TK_GT              OP_Le
-  **       TK_LE              OP_Gt
-  **       TK_GE              OP_Lt
-  **       TK_LT              OP_Ge
-  **
-  ** For other values of pExpr->op, op is undefined and unused.
-  ** The value of TK_ and OP_ constants are arranged such that we
-  ** can compute the mapping above using the following expression.
-  ** Assert()s verify that the computation is correct.
-  */
-  op = ((pExpr->op+(TK_ISNULL&1))^1)-(TK_ISNULL&1);
-
-  /* Verify correct alignment of TK_ and OP_ constants
-  */
-  assert( pExpr->op!=TK_ISNULL || op==OP_NotNull );
-  assert( pExpr->op!=TK_NOTNULL || op==OP_IsNull );
-  assert( pExpr->op!=TK_NE || op==OP_Eq );
-  assert( pExpr->op!=TK_EQ || op==OP_Ne );
-  assert( pExpr->op!=TK_LT || op==OP_Ge );
-  assert( pExpr->op!=TK_LE || op==OP_Gt );
-  assert( pExpr->op!=TK_GT || op==OP_Le );
-  assert( pExpr->op!=TK_GE || op==OP_Lt );
-
-  switch( pExpr->op ){
-    case TK_AND:
-    case TK_OR: {
-      Expr *pAlt = tdsqlite3ExprSimplifiedAndOr(pExpr);
-      if( pAlt!=pExpr ){
-        tdsqlite3ExprIfFalse(pParse, pAlt, dest, jumpIfNull);
-      }else if( pExpr->op==TK_AND ){
-        testcase( jumpIfNull==0 );
-        tdsqlite3ExprIfFalse(pParse, pExpr->pLeft, dest, jumpIfNull);
-        tdsqlite3ExprIfFalse(pParse, pExpr->pRight, dest, jumpIfNull);
-      }else{
-        int d2 = tdsqlite3VdbeMakeLabel(pParse);
-        testcase( jumpIfNull==0 );
-        tdsqlite3ExprIfTrue(pParse, pExpr->pLeft, d2,
-                          jumpIfNull^SQLITE_JUMPIFNULL);
-        tdsqlite3ExprIfFalse(pParse, pExpr->pRight, dest, jumpIfNull);
-        tdsqlite3VdbeResolveLabel(v, d2);
-      }
-      break;
-    }
-    case TK_NOT: {
-      testcase( jumpIfNull==0 );
-      tdsqlite3ExprIfTrue(pParse, pExpr->pLeft, dest, jumpIfNull);
-      break;
-    }
-    case TK_TRUTH: {
-      int isNot;   /* IS NOT TRUE or IS NOT FALSE */
-      int isTrue;  /* IS TRUE or IS NOT TRUE */
-      testcase( jumpIfNull==0 );
-      isNot = pExpr->op2==TK_ISNOT;
-      isTrue = tdsqlite3ExprTruthValue(pExpr->pRight);
-      testcase( isTrue && isNot );
-      testcase( !isTrue && isNot );
-      if( isTrue ^ isNot ){
-        /* IS TRUE and IS NOT FALSE */
-        tdsqlite3ExprIfFalse(pParse, pExpr->pLeft, dest,
-                           isNot ? 0 : SQLITE_JUMPIFNULL);
-
-      }else{
-        /* IS FALSE and IS NOT TRUE */
-        tdsqlite3ExprIfTrue(pParse, pExpr->pLeft, dest,
-                          isNot ? 0 : SQLITE_JUMPIFNULL);
-      }
-      break;
-    }
-    case TK_IS:
-    case TK_ISNOT:
-      testcase( pExpr->op==TK_IS );
-      testcase( pExpr->op==TK_ISNOT );
-      op = (pExpr->op==TK_IS) ? TK_NE : TK_EQ;
-      jumpIfNull = SQLITE_NULLEQ;
-      /* Fall thru */
-    case TK_LT:
-    case TK_LE:
-    case TK_GT:
-    case TK_GE:
-    case TK_NE:
-    case TK_EQ: {
-      if( tdsqlite3ExprIsVector(pExpr->pLeft) ) goto default_expr;
-      testcase( jumpIfNull==0 );
-      r1 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      r2 = tdsqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
-      codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
-                  r1, r2, dest, jumpIfNull,ExprHasProperty(pExpr,EP_Commuted));
-      assert(TK_LT==OP_Lt); testcase(op==OP_Lt); VdbeCoverageIf(v,op==OP_Lt);
-      assert(TK_LE==OP_Le); testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
-      assert(TK_GT==OP_Gt); testcase(op==OP_Gt); VdbeCoverageIf(v,op==OP_Gt);
-      assert(TK_GE==OP_Ge); testcase(op==OP_Ge); VdbeCoverageIf(v,op==OP_Ge);
-      assert(TK_EQ==OP_Eq); testcase(op==OP_Eq);
-      VdbeCoverageIf(v, op==OP_Eq && jumpIfNull!=SQLITE_NULLEQ);
-      VdbeCoverageIf(v, op==OP_Eq && jumpIfNull==SQLITE_NULLEQ);
-      assert(TK_NE==OP_Ne); testcase(op==OP_Ne);
-      VdbeCoverageIf(v, op==OP_Ne && jumpIfNull!=SQLITE_NULLEQ);
-      VdbeCoverageIf(v, op==OP_Ne && jumpIfNull==SQLITE_NULLEQ);
-      testcase( regFree1==0 );
-      testcase( regFree2==0 );
-      break;
-    }
-    case TK_ISNULL:
-    case TK_NOTNULL: {
-      r1 = tdsqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      tdsqlite3VdbeAddOp2(v, op, r1, dest);
-      testcase( op==TK_ISNULL );   VdbeCoverageIf(v, op==TK_ISNULL);
-      testcase( op==TK_NOTNULL );  VdbeCoverageIf(v, op==TK_NOTNULL);
-      testcase( regFree1==0 );
-      break;
-    }
-    case TK_BETWEEN: {
-      testcase( jumpIfNull==0 );
-      exprCodeBetween(pParse, pExpr, dest, tdsqlite3ExprIfFalse, jumpIfNull);
-      break;
-    }
-#ifndef SQLITE_OMIT_SUBQUERY
-    case TK_IN: {
-      if( jumpIfNull ){
-        tdsqlite3ExprCodeIN(pParse, pExpr, dest, dest);
-      }else{
-        int destIfNull = tdsqlite3VdbeMakeLabel(pParse);
-        tdsqlite3ExprCodeIN(pParse, pExpr, dest, destIfNull);
-        tdsqlite3VdbeResolveLabel(v, destIfNull);
-      }
-      break;
-    }
-#endif
-    default: {
-    default_expr: 
-      if( ExprAlwaysFalse(pExpr) ){
-        tdsqlite3VdbeGoto(v, dest);
-      }else if( ExprAlwaysTrue(pExpr) ){
-        /* no-op */
-      }else{
-        r1 = tdsqlite3ExprCodeTemp(pParse, pExpr, &regFree1);
-        tdsqlite3VdbeAddOp3(v, OP_IfNot, r1, dest, jumpIfNull!=0);
-        VdbeCoverage(v);
-        testcase( regFree1==0 );
-        testcase( jumpIfNull==0 );
-      }
-      break;
-    }
-  }
-  tdsqlite3ReleaseTempReg(pParse, regFree1);
-  tdsqlite3ReleaseTempReg(pParse, regFree2);
-}
-
-/*
-** Like tdsqlite3ExprIfFalse() except that a copy is made of pExpr before
-** code generation, and that copy is deleted after code generation. This
-** ensures that the original pExpr is unchanged.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprIfFalseDup(Parse *pParse, Expr *pExpr, int dest,int jumpIfNull){
-  tdsqlite3 *db = pParse->db;
-  Expr *pCopy = tdsqlite3ExprDup(db, pExpr, 0);
-  if( db->mallocFailed==0 ){
-    tdsqlite3ExprIfFalse(pParse, pCopy, dest, jumpIfNull);
-  }
-  tdsqlite3ExprDelete(db, pCopy);
-}
-
-/*
-** Expression pVar is guaranteed to be an SQL variable. pExpr may be any
-** type of expression.
-**
-** If pExpr is a simple SQL value - an integer, real, string, blob
-** or NULL value - then the VDBE currently being prepared is configured
-** to re-prepare each time a new value is bound to variable pVar.
-**
-** Additionally, if pExpr is a simple SQL value and the value is the
-** same as that currently bound to variable pVar, non-zero is returned.
-** Otherwise, if the values are not the same or if pExpr is not a simple
-** SQL value, zero is returned.
-*/
-static int exprCompareVariable(Parse *pParse, Expr *pVar, Expr *pExpr){
-  int res = 0;
-  int iVar;
-  tdsqlite3_value *pL, *pR = 0;
-  
-  tdsqlite3ValueFromExpr(pParse->db, pExpr, SQLITE_UTF8, SQLITE_AFF_BLOB, &pR);
-  if( pR ){
-    iVar = pVar->iColumn;
-    tdsqlite3VdbeSetVarmask(pParse->pVdbe, iVar);
-    pL = tdsqlite3VdbeGetBoundValue(pParse->pReprepare, iVar, SQLITE_AFF_BLOB);
-    if( pL ){
-      if( tdsqlite3_value_type(pL)==SQLITE_TEXT ){
-        tdsqlite3_value_text(pL); /* Make sure the encoding is UTF-8 */
-      }
-      res =  0==tdsqlite3MemCompare(pL, pR, 0);
-    }
-    tdsqlite3ValueFree(pR);
-    tdsqlite3ValueFree(pL);
-  }
-
-  return res;
-}
-
-/*
-** Do a deep comparison of two expression trees.  Return 0 if the two
-** expressions are completely identical.  Return 1 if they differ only
-** by a COLLATE operator at the top level.  Return 2 if there are differences
-** other than the top-level COLLATE operator.
-**
-** If any subelement of pB has Expr.iTable==(-1) then it is allowed
-** to compare equal to an equivalent element in pA with Expr.iTable==iTab.
-**
-** The pA side might be using TK_REGISTER.  If that is the case and pB is
-** not using TK_REGISTER but is otherwise equivalent, then still return 0.
-**
-** Sometimes this routine will return 2 even if the two expressions
-** really are equivalent.  If we cannot prove that the expressions are
-** identical, we return 2 just to be safe.  So if this routine
-** returns 2, then you do not really know for certain if the two
-** expressions are the same.  But if you get a 0 or 1 return, then you
-** can be sure the expressions are the same.  In the places where
-** this routine is used, it does not hurt to get an extra 2 - that
-** just might result in some slightly slower code.  But returning
-** an incorrect 0 or 1 could lead to a malfunction.
-**
-** If pParse is not NULL then TK_VARIABLE terms in pA with bindings in
-** pParse->pReprepare can be matched against literals in pB.  The 
-** pParse->pVdbe->expmask bitmask is updated for each variable referenced.
-** If pParse is NULL (the normal case) then any TK_VARIABLE term in 
-** Argument pParse should normally be NULL. If it is not NULL and pA or
-** pB causes a return value of 2.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCompare(Parse *pParse, Expr *pA, Expr *pB, int iTab){
-  u32 combinedFlags;
-  if( pA==0 || pB==0 ){
-    return pB==pA ? 0 : 2;
-  }
-  if( pParse && pA->op==TK_VARIABLE && exprCompareVariable(pParse, pA, pB) ){
-    return 0;
-  }
-  combinedFlags = pA->flags | pB->flags;
-  if( combinedFlags & EP_IntValue ){
-    if( (pA->flags&pB->flags&EP_IntValue)!=0 && pA->u.iValue==pB->u.iValue ){
-      return 0;
-    }
-    return 2;
-  }
-  if( pA->op!=pB->op || pA->op==TK_RAISE ){
-    if( pA->op==TK_COLLATE && tdsqlite3ExprCompare(pParse, pA->pLeft,pB,iTab)<2 ){
-      return 1;
-    }
-    if( pB->op==TK_COLLATE && tdsqlite3ExprCompare(pParse, pA,pB->pLeft,iTab)<2 ){
-      return 1;
-    }
-    return 2;
-  }
-  if( pA->op!=TK_COLUMN && pA->op!=TK_AGG_COLUMN && pA->u.zToken ){
-    if( pA->op==TK_FUNCTION || pA->op==TK_AGG_FUNCTION ){
-      if( tdsqlite3StrICmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      assert( pA->op==pB->op );
-      if( ExprHasProperty(pA,EP_WinFunc)!=ExprHasProperty(pB,EP_WinFunc) ){
-        return 2;
-      }
-      if( ExprHasProperty(pA,EP_WinFunc) ){
-        if( tdsqlite3WindowCompare(pParse, pA->y.pWin, pB->y.pWin, 1)!=0 ){
-          return 2;
-        }
-      }
-#endif
-    }else if( pA->op==TK_NULL ){
-      return 0;
-    }else if( pA->op==TK_COLLATE ){
-      if( tdsqlite3_stricmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
-    }else if( ALWAYS(pB->u.zToken!=0) && strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
-      return 2;
-    }
-  }
-  if( (pA->flags & (EP_Distinct|EP_Commuted))
-     != (pB->flags & (EP_Distinct|EP_Commuted)) ) return 2;
-  if( (combinedFlags & EP_TokenOnly)==0 ){
-    if( combinedFlags & EP_xIsSelect ) return 2;
-    if( (combinedFlags & EP_FixedCol)==0
-     && tdsqlite3ExprCompare(pParse, pA->pLeft, pB->pLeft, iTab) ) return 2;
-    if( tdsqlite3ExprCompare(pParse, pA->pRight, pB->pRight, iTab) ) return 2;
-    if( tdsqlite3ExprListCompare(pA->x.pList, pB->x.pList, iTab) ) return 2;
-    if( pA->op!=TK_STRING
-     && pA->op!=TK_TRUEFALSE
-     && (combinedFlags & EP_Reduced)==0
-    ){
-      if( pA->iColumn!=pB->iColumn ) return 2;
-      if( pA->op2!=pB->op2 ){
-        if( pA->op==TK_TRUTH ) return 2;
-        if( pA->op==TK_FUNCTION && iTab<0 ){
-          /* Ex: CREATE TABLE t1(a CHECK( a<julianday('now') ));
-          **     INSERT INTO t1(a) VALUES(julianday('now')+10);
-          ** Without this test, tdsqlite3ExprCodeAtInit() will run on the
-          ** the julianday() of INSERT first, and remember that expression.
-          ** Then tdsqlite3ExprCodeInit() will see the julianday() in the CHECK
-          ** constraint as redundant, reusing the one from the INSERT, even
-          ** though the julianday() in INSERT lacks the critical NC_IsCheck
-          ** flag.  See ticket [830277d9db6c3ba1] (2019-10-30)
-          */
-          return 2;
-        }
-      }
-      if( pA->op!=TK_IN && pA->iTable!=pB->iTable && pA->iTable!=iTab ){
-        return 2;
-      }
-    }
-  }
-  return 0;
-}
-
-/*
-** Compare two ExprList objects.  Return 0 if they are identical, 1
-** if they are certainly different, or 2 if it is not possible to 
-** determine if they are identical or not.
-**
-** If any subelement of pB has Expr.iTable==(-1) then it is allowed
-** to compare equal to an equivalent element in pA with Expr.iTable==iTab.
-**
-** This routine might return non-zero for equivalent ExprLists.  The
-** only consequence will be disabled optimizations.  But this routine
-** must never return 0 if the two ExprList objects are different, or
-** a malfunction will result.
-**
-** Two NULL pointers are considered to be the same.  But a NULL pointer
-** always differs from a non-NULL pointer.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprListCompare(ExprList *pA, ExprList *pB, int iTab){
-  int i;
-  if( pA==0 && pB==0 ) return 0;
-  if( pA==0 || pB==0 ) return 1;
-  if( pA->nExpr!=pB->nExpr ) return 1;
-  for(i=0; i<pA->nExpr; i++){
-    int res;
-    Expr *pExprA = pA->a[i].pExpr;
-    Expr *pExprB = pB->a[i].pExpr;
-    if( pA->a[i].sortFlags!=pB->a[i].sortFlags ) return 1;
-    if( (res = tdsqlite3ExprCompare(0, pExprA, pExprB, iTab)) ) return res;
-  }
-  return 0;
-}
-
-/*
-** Like tdsqlite3ExprCompare() except COLLATE operators at the top-level
-** are ignored.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCompareSkip(Expr *pA, Expr *pB, int iTab){
-  return tdsqlite3ExprCompare(0,
-             tdsqlite3ExprSkipCollateAndLikely(pA),
-             tdsqlite3ExprSkipCollateAndLikely(pB),
-             iTab);
-}
-
-/*
-** Return non-zero if Expr p can only be true if pNN is not NULL.
-**
-** Or if seenNot is true, return non-zero if Expr p can only be
-** non-NULL if pNN is not NULL
-*/
-static int exprImpliesNotNull(
-  Parse *pParse,      /* Parsing context */
-  Expr *p,            /* The expression to be checked */
-  Expr *pNN,          /* The expression that is NOT NULL */
-  int iTab,           /* Table being evaluated */
-  int seenNot         /* Return true only if p can be any non-NULL value */
-){
-  assert( p );
-  assert( pNN );
-  if( tdsqlite3ExprCompare(pParse, p, pNN, iTab)==0 ){
-    return pNN->op!=TK_NULL;
-  }
-  switch( p->op ){
-    case TK_IN: {
-      if( seenNot && ExprHasProperty(p, EP_xIsSelect) ) return 0;
-      assert( ExprHasProperty(p,EP_xIsSelect)
-           || (p->x.pList!=0 && p->x.pList->nExpr>0) );
-      return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, 1);
-    }
-    case TK_BETWEEN: {
-      ExprList *pList = p->x.pList;
-      assert( pList!=0 );
-      assert( pList->nExpr==2 );
-      if( seenNot ) return 0;
-      if( exprImpliesNotNull(pParse, pList->a[0].pExpr, pNN, iTab, 1)
-       || exprImpliesNotNull(pParse, pList->a[1].pExpr, pNN, iTab, 1)
-      ){
-        return 1;
-      }
-      return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, 1);
-    }
-    case TK_EQ:
-    case TK_NE:
-    case TK_LT:
-    case TK_LE:
-    case TK_GT:
-    case TK_GE:
-    case TK_PLUS:
-    case TK_MINUS:
-    case TK_BITOR:
-    case TK_LSHIFT:
-    case TK_RSHIFT: 
-    case TK_CONCAT: 
-      seenNot = 1;
-      /* Fall thru */
-    case TK_STAR:
-    case TK_REM:
-    case TK_BITAND:
-    case TK_SLASH: {
-      if( exprImpliesNotNull(pParse, p->pRight, pNN, iTab, seenNot) ) return 1;
-      /* Fall thru into the next case */
-    }
-    case TK_SPAN:
-    case TK_COLLATE:
-    case TK_UPLUS:
-    case TK_UMINUS: {
-      return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, seenNot);
-    }
-    case TK_TRUTH: {
-      if( seenNot ) return 0;
-      if( p->op2!=TK_IS ) return 0;
-      return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, 1);
-    }
-    case TK_BITNOT:
-    case TK_NOT: {
-      return exprImpliesNotNull(pParse, p->pLeft, pNN, iTab, 1);
-    }
-  }
-  return 0;
-}
-
-/*
-** Return true if we can prove the pE2 will always be true if pE1 is
-** true.  Return false if we cannot complete the proof or if pE2 might
-** be false.  Examples:
-**
-**     pE1: x==5       pE2: x==5             Result: true
-**     pE1: x>0        pE2: x==5             Result: false
-**     pE1: x=21       pE2: x=21 OR y=43     Result: true
-**     pE1: x!=123     pE2: x IS NOT NULL    Result: true
-**     pE1: x!=?1      pE2: x IS NOT NULL    Result: true
-**     pE1: x IS NULL  pE2: x IS NOT NULL    Result: false
-**     pE1: x IS ?2    pE2: x IS NOT NULL    Reuslt: false
-**
-** When comparing TK_COLUMN nodes between pE1 and pE2, if pE2 has
-** Expr.iTable<0 then assume a table number given by iTab.
-**
-** If pParse is not NULL, then the values of bound variables in pE1 are 
-** compared against literal values in pE2 and pParse->pVdbe->expmask is
-** modified to record which bound variables are referenced.  If pParse 
-** is NULL, then false will be returned if pE1 contains any bound variables.
-**
-** When in doubt, return false.  Returning true might give a performance
-** improvement.  Returning false might cause a performance reduction, but
-** it will always give the correct answer and is hence always safe.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprImpliesExpr(Parse *pParse, Expr *pE1, Expr *pE2, int iTab){
-  if( tdsqlite3ExprCompare(pParse, pE1, pE2, iTab)==0 ){
-    return 1;
-  }
-  if( pE2->op==TK_OR
-   && (tdsqlite3ExprImpliesExpr(pParse, pE1, pE2->pLeft, iTab)
-             || tdsqlite3ExprImpliesExpr(pParse, pE1, pE2->pRight, iTab) )
-  ){
-    return 1;
-  }
-  if( pE2->op==TK_NOTNULL
-   && exprImpliesNotNull(pParse, pE1, pE2->pLeft, iTab, 0)
-  ){
-    return 1;
-  }
-  return 0;
-}
-
-/*
-** This is the Expr node callback for tdsqlite3ExprImpliesNonNullRow().
-** If the expression node requires that the table at pWalker->iCur
-** have one or more non-NULL column, then set pWalker->eCode to 1 and abort.
-**
-** This routine controls an optimization.  False positives (setting
-** pWalker->eCode to 1 when it should not be) are deadly, but false-negatives
-** (never setting pWalker->eCode) is a harmless missed optimization.
-*/
-static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){
-  testcase( pExpr->op==TK_AGG_COLUMN );
-  testcase( pExpr->op==TK_AGG_FUNCTION );
-  if( ExprHasProperty(pExpr, EP_FromJoin) ) return WRC_Prune;
-  switch( pExpr->op ){
-    case TK_ISNOT:
-    case TK_ISNULL:
-    case TK_NOTNULL:
-    case TK_IS:
-    case TK_OR:
-    case TK_VECTOR:
-    case TK_CASE:
-    case TK_IN:
-    case TK_FUNCTION:
-    case TK_TRUTH:
-      testcase( pExpr->op==TK_ISNOT );
-      testcase( pExpr->op==TK_ISNULL );
-      testcase( pExpr->op==TK_NOTNULL );
-      testcase( pExpr->op==TK_IS );
-      testcase( pExpr->op==TK_OR );
-      testcase( pExpr->op==TK_VECTOR );
-      testcase( pExpr->op==TK_CASE );
-      testcase( pExpr->op==TK_IN );
-      testcase( pExpr->op==TK_FUNCTION );
-      testcase( pExpr->op==TK_TRUTH );
-      return WRC_Prune;
-    case TK_COLUMN:
-      if( pWalker->u.iCur==pExpr->iTable ){
-        pWalker->eCode = 1;
-        return WRC_Abort;
-      }
-      return WRC_Prune;
-
-    case TK_AND:
-      if( pWalker->eCode==0 ){
-        tdsqlite3WalkExpr(pWalker, pExpr->pLeft);
-        if( pWalker->eCode ){
-          pWalker->eCode = 0;
-          tdsqlite3WalkExpr(pWalker, pExpr->pRight);
-        }
-      }
-      return WRC_Prune;
-
-    case TK_BETWEEN:
-      if( tdsqlite3WalkExpr(pWalker, pExpr->pLeft)==WRC_Abort ){
-        assert( pWalker->eCode );
-        return WRC_Abort;
-      }
-      return WRC_Prune;
-
-    /* Virtual tables are allowed to use constraints like x=NULL.  So
-    ** a term of the form x=y does not prove that y is not null if x
-    ** is the column of a virtual table */
-    case TK_EQ:
-    case TK_NE:
-    case TK_LT:
-    case TK_LE:
-    case TK_GT:
-    case TK_GE:
-      testcase( pExpr->op==TK_EQ );
-      testcase( pExpr->op==TK_NE );
-      testcase( pExpr->op==TK_LT );
-      testcase( pExpr->op==TK_LE );
-      testcase( pExpr->op==TK_GT );
-      testcase( pExpr->op==TK_GE );
-      if( (pExpr->pLeft->op==TK_COLUMN && IsVirtual(pExpr->pLeft->y.pTab))
-       || (pExpr->pRight->op==TK_COLUMN && IsVirtual(pExpr->pRight->y.pTab))
-      ){
-       return WRC_Prune;
-      }
-
-    default:
-      return WRC_Continue;
-  }
-}
-
-/*
-** Return true (non-zero) if expression p can only be true if at least
-** one column of table iTab is non-null.  In other words, return true
-** if expression p will always be NULL or false if every column of iTab
-** is NULL.
-**
-** False negatives are acceptable.  In other words, it is ok to return
-** zero even if expression p will never be true of every column of iTab
-** is NULL.  A false negative is merely a missed optimization opportunity.
-**
-** False positives are not allowed, however.  A false positive may result
-** in an incorrect answer.
-**
-** Terms of p that are marked with EP_FromJoin (and hence that come from
-** the ON or USING clauses of LEFT JOINS) are excluded from the analysis.
-**
-** This routine is used to check if a LEFT JOIN can be converted into
-** an ordinary JOIN.  The p argument is the WHERE clause.  If the WHERE
-** clause requires that some column of the right table of the LEFT JOIN
-** be non-NULL, then the LEFT JOIN can be safely converted into an
-** ordinary join.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprImpliesNonNullRow(Expr *p, int iTab){
-  Walker w;
-  p = tdsqlite3ExprSkipCollateAndLikely(p);
-  if( p==0 ) return 0;
-  if( p->op==TK_NOTNULL ){
-    p = p->pLeft;
-  }else{
-    while( p->op==TK_AND ){
-      if( tdsqlite3ExprImpliesNonNullRow(p->pLeft, iTab) ) return 1;
-      p = p->pRight;
-    }
-  }
-  w.xExprCallback = impliesNotNullRow;
-  w.xSelectCallback = 0;
-  w.xSelectCallback2 = 0;
-  w.eCode = 0;
-  w.u.iCur = iTab;
-  tdsqlite3WalkExpr(&w, p);
-  return w.eCode;
-}
-
-/*
-** An instance of the following structure is used by the tree walker
-** to determine if an expression can be evaluated by reference to the
-** index only, without having to do a search for the corresponding
-** table entry.  The IdxCover.pIdx field is the index.  IdxCover.iCur
-** is the cursor for the table.
-*/
-struct IdxCover {
-  Index *pIdx;     /* The index to be tested for coverage */
-  int iCur;        /* Cursor number for the table corresponding to the index */
-};
-
-/*
-** Check to see if there are references to columns in table 
-** pWalker->u.pIdxCover->iCur can be satisfied using the index
-** pWalker->u.pIdxCover->pIdx.
-*/
-static int exprIdxCover(Walker *pWalker, Expr *pExpr){
-  if( pExpr->op==TK_COLUMN
-   && pExpr->iTable==pWalker->u.pIdxCover->iCur
-   && tdsqlite3TableColumnToIndex(pWalker->u.pIdxCover->pIdx, pExpr->iColumn)<0
-  ){
-    pWalker->eCode = 1;
-    return WRC_Abort;
-  }
-  return WRC_Continue;
-}
-
-/*
-** Determine if an index pIdx on table with cursor iCur contains will
-** the expression pExpr.  Return true if the index does cover the
-** expression and false if the pExpr expression references table columns
-** that are not found in the index pIdx.
-**
-** An index covering an expression means that the expression can be
-** evaluated using only the index and without having to lookup the
-** corresponding table entry.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprCoveredByIndex(
-  Expr *pExpr,        /* The index to be tested */
-  int iCur,           /* The cursor number for the corresponding table */
-  Index *pIdx         /* The index that might be used for coverage */
-){
-  Walker w;
-  struct IdxCover xcov;
-  memset(&w, 0, sizeof(w));
-  xcov.iCur = iCur;
-  xcov.pIdx = pIdx;
-  w.xExprCallback = exprIdxCover;
-  w.u.pIdxCover = &xcov;
-  tdsqlite3WalkExpr(&w, pExpr);
-  return !w.eCode;
-}
-
-
-/*
-** An instance of the following structure is used by the tree walker
-** to count references to table columns in the arguments of an 
-** aggregate function, in order to implement the
-** tdsqlite3FunctionThisSrc() routine.
-*/
-struct SrcCount {
-  SrcList *pSrc;   /* One particular FROM clause in a nested query */
-  int nThis;       /* Number of references to columns in pSrcList */
-  int nOther;      /* Number of references to columns in other FROM clauses */
-};
-
-/*
-** Count the number of references to columns.
-*/
-static int exprSrcCount(Walker *pWalker, Expr *pExpr){
-  /* There was once a NEVER() on the second term on the grounds that
-  ** tdsqlite3FunctionUsesThisSrc() was always called before 
-  ** tdsqlite3ExprAnalyzeAggregates() and so the TK_COLUMNs have not yet 
-  ** been converted into TK_AGG_COLUMN. But this is no longer true due
-  ** to window functions - tdsqlite3WindowRewrite() may now indirectly call
-  ** FunctionUsesThisSrc() when creating a new sub-select. */
-  if( pExpr->op==TK_COLUMN || pExpr->op==TK_AGG_COLUMN ){
-    int i;
-    struct SrcCount *p = pWalker->u.pSrcCount;
-    SrcList *pSrc = p->pSrc;
-    int nSrc = pSrc ? pSrc->nSrc : 0;
-    for(i=0; i<nSrc; i++){
-      if( pExpr->iTable==pSrc->a[i].iCursor ) break;
-    }
-    if( i<nSrc ){
-      p->nThis++;
-    }else if( nSrc==0 || pExpr->iTable<pSrc->a[0].iCursor ){
-      /* In a well-formed parse tree (no name resolution errors),
-      ** TK_COLUMN nodes with smaller Expr.iTable values are in an
-      ** outer context.  Those are the only ones to count as "other" */
-      p->nOther++;
-    }
-  }
-  return WRC_Continue;
-}
-
-/*
-** Determine if any of the arguments to the pExpr Function reference
-** pSrcList.  Return true if they do.  Also return true if the function
-** has no arguments or has only constant arguments.  Return false if pExpr
-** references columns but not columns of tables found in pSrcList.
-*/
-SQLITE_PRIVATE int tdsqlite3FunctionUsesThisSrc(Expr *pExpr, SrcList *pSrcList){
-  Walker w;
-  struct SrcCount cnt;
-  assert( pExpr->op==TK_AGG_FUNCTION );
-  memset(&w, 0, sizeof(w));
-  w.xExprCallback = exprSrcCount;
-  w.xSelectCallback = tdsqlite3SelectWalkNoop;
-  w.u.pSrcCount = &cnt;
-  cnt.pSrc = pSrcList;
-  cnt.nThis = 0;
-  cnt.nOther = 0;
-  tdsqlite3WalkExprList(&w, pExpr->x.pList);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  if( ExprHasProperty(pExpr, EP_WinFunc) ){
-    tdsqlite3WalkExpr(&w, pExpr->y.pWin->pFilter);
-  }
-#endif
-  return cnt.nThis>0 || cnt.nOther==0;
-}
-
-/*
-** Add a new element to the pAggInfo->aCol[] array.  Return the index of
-** the new element.  Return a negative number if malloc fails.
-*/
-static int addAggInfoColumn(tdsqlite3 *db, AggInfo *pInfo){
-  int i;
-  pInfo->aCol = tdsqlite3ArrayAllocate(
-       db,
-       pInfo->aCol,
-       sizeof(pInfo->aCol[0]),
-       &pInfo->nColumn,
-       &i
-  );
-  return i;
-}    
-
-/*
-** Add a new element to the pAggInfo->aFunc[] array.  Return the index of
-** the new element.  Return a negative number if malloc fails.
-*/
-static int addAggInfoFunc(tdsqlite3 *db, AggInfo *pInfo){
-  int i;
-  pInfo->aFunc = tdsqlite3ArrayAllocate(
-       db, 
-       pInfo->aFunc,
-       sizeof(pInfo->aFunc[0]),
-       &pInfo->nFunc,
-       &i
-  );
-  return i;
-}    
-
-/*
-** This is the xExprCallback for a tree walker.  It is used to
-** implement tdsqlite3ExprAnalyzeAggregates().  See tdsqlite3ExprAnalyzeAggregates
-** for additional information.
-*/
-static int analyzeAggregate(Walker *pWalker, Expr *pExpr){
-  int i;
-  NameContext *pNC = pWalker->u.pNC;
-  Parse *pParse = pNC->pParse;
-  SrcList *pSrcList = pNC->pSrcList;
-  AggInfo *pAggInfo = pNC->uNC.pAggInfo;
-
-  assert( pNC->ncFlags & NC_UAggInfo );
-  switch( pExpr->op ){
-    case TK_AGG_COLUMN:
-    case TK_COLUMN: {
-      testcase( pExpr->op==TK_AGG_COLUMN );
-      testcase( pExpr->op==TK_COLUMN );
-      /* Check to see if the column is in one of the tables in the FROM
-      ** clause of the aggregate query */
-      if( ALWAYS(pSrcList!=0) ){
-        struct SrcList_item *pItem = pSrcList->a;
-        for(i=0; i<pSrcList->nSrc; i++, pItem++){
-          struct AggInfo_col *pCol;
-          assert( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) );
-          if( pExpr->iTable==pItem->iCursor ){
-            /* If we reach this point, it means that pExpr refers to a table
-            ** that is in the FROM clause of the aggregate query.  
-            **
-            ** Make an entry for the column in pAggInfo->aCol[] if there
-            ** is not an entry there already.
-            */
-            int k;
-            pCol = pAggInfo->aCol;
-            for(k=0; k<pAggInfo->nColumn; k++, pCol++){
-              if( pCol->iTable==pExpr->iTable &&
-                  pCol->iColumn==pExpr->iColumn ){
-                break;
-              }
-            }
-            if( (k>=pAggInfo->nColumn)
-             && (k = addAggInfoColumn(pParse->db, pAggInfo))>=0 
-            ){
-              pCol = &pAggInfo->aCol[k];
-              pCol->pTab = pExpr->y.pTab;
-              pCol->iTable = pExpr->iTable;
-              pCol->iColumn = pExpr->iColumn;
-              pCol->iMem = ++pParse->nMem;
-              pCol->iSorterColumn = -1;
-              pCol->pExpr = pExpr;
-              if( pAggInfo->pGroupBy ){
-                int j, n;
-                ExprList *pGB = pAggInfo->pGroupBy;
-                struct ExprList_item *pTerm = pGB->a;
-                n = pGB->nExpr;
-                for(j=0; j<n; j++, pTerm++){
-                  Expr *pE = pTerm->pExpr;
-                  if( pE->op==TK_COLUMN && pE->iTable==pExpr->iTable &&
-                      pE->iColumn==pExpr->iColumn ){
-                    pCol->iSorterColumn = j;
-                    break;
-                  }
-                }
-              }
-              if( pCol->iSorterColumn<0 ){
-                pCol->iSorterColumn = pAggInfo->nSortingColumn++;
-              }
-            }
-            /* There is now an entry for pExpr in pAggInfo->aCol[] (either
-            ** because it was there before or because we just created it).
-            ** Convert the pExpr to be a TK_AGG_COLUMN referring to that
-            ** pAggInfo->aCol[] entry.
-            */
-            ExprSetVVAProperty(pExpr, EP_NoReduce);
-            pExpr->pAggInfo = pAggInfo;
-            pExpr->op = TK_AGG_COLUMN;
-            pExpr->iAgg = (i16)k;
-            break;
-          } /* endif pExpr->iTable==pItem->iCursor */
-        } /* end loop over pSrcList */
-      }
-      return WRC_Prune;
-    }
-    case TK_AGG_FUNCTION: {
-      if( (pNC->ncFlags & NC_InAggFunc)==0
-       && pWalker->walkerDepth==pExpr->op2
-      ){
-        /* Check to see if pExpr is a duplicate of another aggregate 
-        ** function that is already in the pAggInfo structure
-        */
-        struct AggInfo_func *pItem = pAggInfo->aFunc;
-        for(i=0; i<pAggInfo->nFunc; i++, pItem++){
-          if( tdsqlite3ExprCompare(0, pItem->pExpr, pExpr, -1)==0 ){
-            break;
-          }
-        }
-        if( i>=pAggInfo->nFunc ){
-          /* pExpr is original.  Make a new entry in pAggInfo->aFunc[]
-          */
-          u8 enc = ENC(pParse->db);
-          i = addAggInfoFunc(pParse->db, pAggInfo);
-          if( i>=0 ){
-            assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-            pItem = &pAggInfo->aFunc[i];
-            pItem->pExpr = pExpr;
-            pItem->iMem = ++pParse->nMem;
-            assert( !ExprHasProperty(pExpr, EP_IntValue) );
-            pItem->pFunc = tdsqlite3FindFunction(pParse->db,
-                   pExpr->u.zToken, 
-                   pExpr->x.pList ? pExpr->x.pList->nExpr : 0, enc, 0);
-            if( pExpr->flags & EP_Distinct ){
-              pItem->iDistinct = pParse->nTab++;
-            }else{
-              pItem->iDistinct = -1;
-            }
-          }
-        }
-        /* Make pExpr point to the appropriate pAggInfo->aFunc[] entry
-        */
-        assert( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) );
-        ExprSetVVAProperty(pExpr, EP_NoReduce);
-        pExpr->iAgg = (i16)i;
-        pExpr->pAggInfo = pAggInfo;
-        return WRC_Prune;
-      }else{
-        return WRC_Continue;
-      }
-    }
-  }
-  return WRC_Continue;
-}
-static int analyzeAggregatesInSelect(Walker *pWalker, Select *pSelect){
-  UNUSED_PARAMETER(pSelect);
-  pWalker->walkerDepth++;
-  return WRC_Continue;
-}
-static void analyzeAggregatesInSelectEnd(Walker *pWalker, Select *pSelect){
-  UNUSED_PARAMETER(pSelect);
-  pWalker->walkerDepth--;
-}
-
-/*
-** Analyze the pExpr expression looking for aggregate functions and
-** for variables that need to be added to AggInfo object that pNC->pAggInfo
-** points to.  Additional entries are made on the AggInfo object as
-** necessary.
-**
-** This routine should only be called after the expression has been
-** analyzed by tdsqlite3ResolveExprNames().
-*/
-SQLITE_PRIVATE void tdsqlite3ExprAnalyzeAggregates(NameContext *pNC, Expr *pExpr){
-  Walker w;
-  w.xExprCallback = analyzeAggregate;
-  w.xSelectCallback = analyzeAggregatesInSelect;
-  w.xSelectCallback2 = analyzeAggregatesInSelectEnd;
-  w.walkerDepth = 0;
-  w.u.pNC = pNC;
-  w.pParse = 0;
-  assert( pNC->pSrcList!=0 );
-  tdsqlite3WalkExpr(&w, pExpr);
-}
-
-/*
-** Call tdsqlite3ExprAnalyzeAggregates() for every expression in an
-** expression list.  Return the number of errors.
-**
-** If an error is found, the analysis is cut short.
-*/
-SQLITE_PRIVATE void tdsqlite3ExprAnalyzeAggList(NameContext *pNC, ExprList *pList){
-  struct ExprList_item *pItem;
-  int i;
-  if( pList ){
-    for(pItem=pList->a, i=0; i<pList->nExpr; i++, pItem++){
-      tdsqlite3ExprAnalyzeAggregates(pNC, pItem->pExpr);
-    }
-  }
-}
-
-/*
-** Allocate a single new register for use to hold some intermediate result.
-*/
-SQLITE_PRIVATE int tdsqlite3GetTempReg(Parse *pParse){
-  if( pParse->nTempReg==0 ){
-    return ++pParse->nMem;
-  }
-  return pParse->aTempReg[--pParse->nTempReg];
-}
-
-/*
-** Deallocate a register, making available for reuse for some other
-** purpose.
-*/
-SQLITE_PRIVATE void tdsqlite3ReleaseTempReg(Parse *pParse, int iReg){
-  if( iReg ){
-    tdsqlite3VdbeReleaseRegisters(pParse, iReg, 1, 0, 0);
-    if( pParse->nTempReg<ArraySize(pParse->aTempReg) ){
-      pParse->aTempReg[pParse->nTempReg++] = iReg;
-    }
-  }
-}
-
-/*
-** Allocate or deallocate a block of nReg consecutive registers.
-*/
-SQLITE_PRIVATE int tdsqlite3GetTempRange(Parse *pParse, int nReg){
-  int i, n;
-  if( nReg==1 ) return tdsqlite3GetTempReg(pParse);
-  i = pParse->iRangeReg;
-  n = pParse->nRangeReg;
-  if( nReg<=n ){
-    pParse->iRangeReg += nReg;
-    pParse->nRangeReg -= nReg;
-  }else{
-    i = pParse->nMem+1;
-    pParse->nMem += nReg;
-  }
-  return i;
-}
-SQLITE_PRIVATE void tdsqlite3ReleaseTempRange(Parse *pParse, int iReg, int nReg){
-  if( nReg==1 ){
-    tdsqlite3ReleaseTempReg(pParse, iReg);
-    return;
-  }
-  tdsqlite3VdbeReleaseRegisters(pParse, iReg, nReg, 0, 0);
-  if( nReg>pParse->nRangeReg ){
-    pParse->nRangeReg = nReg;
-    pParse->iRangeReg = iReg;
-  }
-}
-
-/*
-** Mark all temporary registers as being unavailable for reuse.
-**
-** Always invoke this procedure after coding a subroutine or co-routine
-** that might be invoked from other parts of the code, to ensure that
-** the sub/co-routine does not use registers in common with the code that
-** invokes the sub/co-routine.
-*/
-SQLITE_PRIVATE void tdsqlite3ClearTempRegCache(Parse *pParse){
-  pParse->nTempReg = 0;
-  pParse->nRangeReg = 0;
-}
-
-/*
-** Validate that no temporary register falls within the range of
-** iFirst..iLast, inclusive.  This routine is only call from within assert()
-** statements.
-*/
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3NoTempsInRange(Parse *pParse, int iFirst, int iLast){
-  int i;
-  if( pParse->nRangeReg>0
-   && pParse->iRangeReg+pParse->nRangeReg > iFirst
-   && pParse->iRangeReg <= iLast
-  ){
-     return 0;
-  }
-  for(i=0; i<pParse->nTempReg; i++){
-    if( pParse->aTempReg[i]>=iFirst && pParse->aTempReg[i]<=iLast ){
-      return 0;
-    }
-  }
-  return 1;
-}
-#endif /* SQLITE_DEBUG */
-
-/************** End of expr.c ************************************************/
-/************** Begin file alter.c *******************************************/
-/*
-** 2005 February 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains C code routines that used to generate VDBE code
-** that implements the ALTER TABLE command.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** The code in this file only exists if we are not omitting the
-** ALTER TABLE logic from the build.
-*/
-#ifndef SQLITE_OMIT_ALTERTABLE
-
-/*
-** Parameter zName is the name of a table that is about to be altered
-** (either with ALTER TABLE ... RENAME TO or ALTER TABLE ... ADD COLUMN).
-** If the table is a system table, this function leaves an error message
-** in pParse->zErr (system tables may not be altered) and returns non-zero.
-**
-** Or, if zName is not a system table, zero is returned.
-*/
-static int isAlterableTable(Parse *pParse, Table *pTab){
-  if( 0==tdsqlite3StrNICmp(pTab->zName, "sqlite_", 7) 
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-   || ( (pTab->tabFlags & TF_Shadow)!=0
-        && tdsqlite3ReadOnlyShadowTables(pParse->db)
-   )
-#endif
-  ){
-    tdsqlite3ErrorMsg(pParse, "table %s may not be altered", pTab->zName);
-    return 1;
-  }
-  return 0;
-}
-
-/*
-** Generate code to verify that the schemas of database zDb and, if
-** bTemp is not true, database "temp", can still be parsed. This is
-** called at the end of the generation of an ALTER TABLE ... RENAME ...
-** statement to ensure that the operation has not rendered any schema
-** objects unusable.
-*/
-static void renameTestSchema(Parse *pParse, const char *zDb, int bTemp){
-  tdsqlite3NestedParse(pParse, 
-      "SELECT 1 "
-      "FROM \"%w\".%s "
-      "WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X'"
-      " AND sql NOT LIKE 'create virtual%%'"
-      " AND sqlite_rename_test(%Q, sql, type, name, %d)=NULL ",
-      zDb, MASTER_NAME, 
-      zDb, bTemp
-  );
-
-  if( bTemp==0 ){
-    tdsqlite3NestedParse(pParse, 
-        "SELECT 1 "
-        "FROM temp.%s "
-        "WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X'"
-        " AND sql NOT LIKE 'create virtual%%'"
-        " AND sqlite_rename_test(%Q, sql, type, name, 1)=NULL ",
-        MASTER_NAME, zDb 
-    );
-  }
-}
-
-/*
-** Generate code to reload the schema for database iDb. And, if iDb!=1, for
-** the temp database as well.
-*/
-static void renameReloadSchema(Parse *pParse, int iDb){
-  Vdbe *v = pParse->pVdbe;
-  if( v ){
-    tdsqlite3ChangeCookie(pParse, iDb);
-    tdsqlite3VdbeAddParseSchemaOp(pParse->pVdbe, iDb, 0);
-    if( iDb!=1 ) tdsqlite3VdbeAddParseSchemaOp(pParse->pVdbe, 1, 0);
-  }
-}
-
-/*
-** Generate code to implement the "ALTER TABLE xxx RENAME TO yyy" 
-** command. 
-*/
-SQLITE_PRIVATE void tdsqlite3AlterRenameTable(
-  Parse *pParse,            /* Parser context. */
-  SrcList *pSrc,            /* The table to rename. */
-  Token *pName              /* The new table name. */
-){
-  int iDb;                  /* Database that contains the table */
-  char *zDb;                /* Name of database iDb */
-  Table *pTab;              /* Table being renamed */
-  char *zName = 0;          /* NULL-terminated version of pName */ 
-  tdsqlite3 *db = pParse->db; /* Database connection */
-  int nTabName;             /* Number of UTF-8 characters in zTabName */
-  const char *zTabName;     /* Original name of the table */
-  Vdbe *v;
-  VTable *pVTab = 0;        /* Non-zero if this is a v-tab with an xRename() */
-  u32 savedDbFlags;         /* Saved value of db->mDbFlags */
-
-  savedDbFlags = db->mDbFlags;  
-  if( NEVER(db->mallocFailed) ) goto exit_rename_table;
-  assert( pSrc->nSrc==1 );
-  assert( tdsqlite3BtreeHoldsAllMutexes(pParse->db) );
-
-  pTab = tdsqlite3LocateTableItem(pParse, 0, &pSrc->a[0]);
-  if( !pTab ) goto exit_rename_table;
-  iDb = tdsqlite3SchemaToIndex(pParse->db, pTab->pSchema);
-  zDb = db->aDb[iDb].zDbSName;
-  db->mDbFlags |= DBFLAG_PreferBuiltin;
-
-  /* Get a NULL terminated version of the new table name. */
-  zName = tdsqlite3NameFromToken(db, pName);
-  if( !zName ) goto exit_rename_table;
-
-  /* Check that a table or index named 'zName' does not already exist
-  ** in database iDb. If so, this is an error.
-  */
-  if( tdsqlite3FindTable(db, zName, zDb) || tdsqlite3FindIndex(db, zName, zDb) ){
-    tdsqlite3ErrorMsg(pParse, 
-        "there is already another table or index with this name: %s", zName);
-    goto exit_rename_table;
-  }
-
-  /* Make sure it is not a system table being altered, or a reserved name
-  ** that the table is being renamed to.
-  */
-  if( SQLITE_OK!=isAlterableTable(pParse, pTab) ){
-    goto exit_rename_table;
-  }
-  if( SQLITE_OK!=tdsqlite3CheckObjectName(pParse,zName,"table",zName) ){
-    goto exit_rename_table;
-  }
-
-#ifndef SQLITE_OMIT_VIEW
-  if( pTab->pSelect ){
-    tdsqlite3ErrorMsg(pParse, "view %s may not be altered", pTab->zName);
-    goto exit_rename_table;
-  }
-#endif
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  /* Invoke the authorization callback. */
-  if( tdsqlite3AuthCheck(pParse, SQLITE_ALTER_TABLE, zDb, pTab->zName, 0) ){
-    goto exit_rename_table;
-  }
-#endif
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( tdsqlite3ViewGetColumnNames(pParse, pTab) ){
-    goto exit_rename_table;
-  }
-  if( IsVirtual(pTab) ){
-    pVTab = tdsqlite3GetVTable(db, pTab);
-    if( pVTab->pVtab->pModule->xRename==0 ){
-      pVTab = 0;
-    }
-  }
-#endif
-
-  /* Begin a transaction for database iDb. Then modify the schema cookie
-  ** (since the ALTER TABLE modifies the schema). Call tdsqlite3MayAbort(),
-  ** as the scalar functions (e.g. sqlite_rename_table()) invoked by the 
-  ** nested SQL may raise an exception.  */
-  v = tdsqlite3GetVdbe(pParse);
-  if( v==0 ){
-    goto exit_rename_table;
-  }
-  tdsqlite3MayAbort(pParse);
-
-  /* figure out how many UTF-8 characters are in zName */
-  zTabName = pTab->zName;
-  nTabName = tdsqlite3Utf8CharLen(zTabName, -1);
-
-  /* Rewrite all CREATE TABLE, INDEX, TRIGGER or VIEW statements in
-  ** the schema to use the new table name.  */
-  tdsqlite3NestedParse(pParse, 
-      "UPDATE \"%w\".%s SET "
-      "sql = sqlite_rename_table(%Q, type, name, sql, %Q, %Q, %d) "
-      "WHERE (type!='index' OR tbl_name=%Q COLLATE nocase)"
-      "AND   name NOT LIKE 'sqliteX_%%' ESCAPE 'X'"
-      , zDb, MASTER_NAME, zDb, zTabName, zName, (iDb==1), zTabName
-  );
-
-  /* Update the tbl_name and name columns of the sqlite_master table
-  ** as required.  */
-  tdsqlite3NestedParse(pParse,
-      "UPDATE %Q.%s SET "
-          "tbl_name = %Q, "
-          "name = CASE "
-            "WHEN type='table' THEN %Q "
-            "WHEN name LIKE 'sqliteX_autoindex%%' ESCAPE 'X' "
-            "     AND type='index' THEN "
-             "'sqlite_autoindex_' || %Q || substr(name,%d+18) "
-            "ELSE name END "
-      "WHERE tbl_name=%Q COLLATE nocase AND "
-          "(type='table' OR type='index' OR type='trigger');", 
-      zDb, MASTER_NAME, 
-      zName, zName, zName, 
-      nTabName, zTabName
-  );
-
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-  /* If the sqlite_sequence table exists in this database, then update 
-  ** it with the new table name.
-  */
-  if( tdsqlite3FindTable(db, "sqlite_sequence", zDb) ){
-    tdsqlite3NestedParse(pParse,
-        "UPDATE \"%w\".sqlite_sequence set name = %Q WHERE name = %Q",
-        zDb, zName, pTab->zName);
-  }
-#endif
-
-  /* If the table being renamed is not itself part of the temp database,
-  ** edit view and trigger definitions within the temp database 
-  ** as required.  */
-  if( iDb!=1 ){
-    tdsqlite3NestedParse(pParse, 
-        "UPDATE sqlite_temp_master SET "
-            "sql = sqlite_rename_table(%Q, type, name, sql, %Q, %Q, 1), "
-            "tbl_name = "
-              "CASE WHEN tbl_name=%Q COLLATE nocase AND "
-              "          sqlite_rename_test(%Q, sql, type, name, 1) "
-              "THEN %Q ELSE tbl_name END "
-            "WHERE type IN ('view', 'trigger')"
-        , zDb, zTabName, zName, zTabName, zDb, zName);
-  }
-
-  /* If this is a virtual table, invoke the xRename() function if
-  ** one is defined. The xRename() callback will modify the names
-  ** of any resources used by the v-table implementation (including other
-  ** SQLite tables) that are identified by the name of the virtual table.
-  */
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( pVTab ){
-    int i = ++pParse->nMem;
-    tdsqlite3VdbeLoadString(v, i, zName);
-    tdsqlite3VdbeAddOp4(v, OP_VRename, i, 0, 0,(const char*)pVTab, P4_VTAB);
-  }
-#endif
-
-  renameReloadSchema(pParse, iDb);
-  renameTestSchema(pParse, zDb, iDb==1);
-
-exit_rename_table:
-  tdsqlite3SrcListDelete(db, pSrc);
-  tdsqlite3DbFree(db, zName);
-  db->mDbFlags = savedDbFlags;
-}
-
-/*
-** This function is called after an "ALTER TABLE ... ADD" statement
-** has been parsed. Argument pColDef contains the text of the new
-** column definition.
-**
-** The Table structure pParse->pNewTable was extended to include
-** the new column during parsing.
-*/
-SQLITE_PRIVATE void tdsqlite3AlterFinishAddColumn(Parse *pParse, Token *pColDef){
-  Table *pNew;              /* Copy of pParse->pNewTable */
-  Table *pTab;              /* Table being altered */
-  int iDb;                  /* Database number */
-  const char *zDb;          /* Database name */
-  const char *zTab;         /* Table name */
-  char *zCol;               /* Null-terminated column definition */
-  Column *pCol;             /* The new column */
-  Expr *pDflt;              /* Default value for the new column */
-  tdsqlite3 *db;              /* The database connection; */
-  Vdbe *v;                  /* The prepared statement under construction */
-  int r1;                   /* Temporary registers */
-
-  db = pParse->db;
-  if( pParse->nErr || db->mallocFailed ) return;
-  pNew = pParse->pNewTable;
-  assert( pNew );
-
-  assert( tdsqlite3BtreeHoldsAllMutexes(db) );
-  iDb = tdsqlite3SchemaToIndex(db, pNew->pSchema);
-  zDb = db->aDb[iDb].zDbSName;
-  zTab = &pNew->zName[16];  /* Skip the "sqlite_altertab_" prefix on the name */
-  pCol = &pNew->aCol[pNew->nCol-1];
-  pDflt = pCol->pDflt;
-  pTab = tdsqlite3FindTable(db, zTab, zDb);
-  assert( pTab );
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  /* Invoke the authorization callback. */
-  if( tdsqlite3AuthCheck(pParse, SQLITE_ALTER_TABLE, zDb, pTab->zName, 0) ){
-    return;
-  }
-#endif
-
-
-  /* Check that the new column is not specified as PRIMARY KEY or UNIQUE.
-  ** If there is a NOT NULL constraint, then the default value for the
-  ** column must not be NULL.
-  */
-  if( pCol->colFlags & COLFLAG_PRIMKEY ){
-    tdsqlite3ErrorMsg(pParse, "Cannot add a PRIMARY KEY column");
-    return;
-  }
-  if( pNew->pIndex ){
-    tdsqlite3ErrorMsg(pParse, "Cannot add a UNIQUE column");
-    return;
-  }
-  if( (pCol->colFlags & COLFLAG_GENERATED)==0 ){
-    /* If the default value for the new column was specified with a 
-    ** literal NULL, then set pDflt to 0. This simplifies checking
-    ** for an SQL NULL default below.
-    */
-    assert( pDflt==0 || pDflt->op==TK_SPAN );
-    if( pDflt && pDflt->pLeft->op==TK_NULL ){
-      pDflt = 0;
-    }
-    if( (db->flags&SQLITE_ForeignKeys) && pNew->pFKey && pDflt ){
-      tdsqlite3ErrorMsg(pParse, 
-          "Cannot add a REFERENCES column with non-NULL default value");
-      return;
-    }
-    if( pCol->notNull && !pDflt ){
-      tdsqlite3ErrorMsg(pParse, 
-          "Cannot add a NOT NULL column with default value NULL");
-      return;
-    }
-
-    /* Ensure the default expression is something that tdsqlite3ValueFromExpr()
-    ** can handle (i.e. not CURRENT_TIME etc.)
-    */
-    if( pDflt ){
-      tdsqlite3_value *pVal = 0;
-      int rc;
-      rc = tdsqlite3ValueFromExpr(db, pDflt, SQLITE_UTF8, SQLITE_AFF_BLOB, &pVal);
-      assert( rc==SQLITE_OK || rc==SQLITE_NOMEM );
-      if( rc!=SQLITE_OK ){
-        assert( db->mallocFailed == 1 );
-        return;
-      }
-      if( !pVal ){
-        tdsqlite3ErrorMsg(pParse,"Cannot add a column with non-constant default");
-        return;
-      }
-      tdsqlite3ValueFree(pVal);
-    }
-  }else if( pCol->colFlags & COLFLAG_STORED ){
-    tdsqlite3ErrorMsg(pParse, "cannot add a STORED column");
-    return;
-  }
-
-
-  /* Modify the CREATE TABLE statement. */
-  zCol = tdsqlite3DbStrNDup(db, (char*)pColDef->z, pColDef->n);
-  if( zCol ){
-    char *zEnd = &zCol[pColDef->n-1];
-    u32 savedDbFlags = db->mDbFlags;
-    while( zEnd>zCol && (*zEnd==';' || tdsqlite3Isspace(*zEnd)) ){
-      *zEnd-- = '\0';
-    }
-    db->mDbFlags |= DBFLAG_PreferBuiltin;
-    tdsqlite3NestedParse(pParse, 
-        "UPDATE \"%w\".%s SET "
-          "sql = substr(sql,1,%d) || ', ' || %Q || substr(sql,%d) "
-        "WHERE type = 'table' AND name = %Q", 
-      zDb, MASTER_NAME, pNew->addColOffset, zCol, pNew->addColOffset+1,
-      zTab
-    );
-    tdsqlite3DbFree(db, zCol);
-    db->mDbFlags = savedDbFlags;
-  }
-
-  /* Make sure the schema version is at least 3.  But do not upgrade
-  ** from less than 3 to 4, as that will corrupt any preexisting DESC
-  ** index.
-  */
-  v = tdsqlite3GetVdbe(pParse);
-  if( v ){
-    r1 = tdsqlite3GetTempReg(pParse);
-    tdsqlite3VdbeAddOp3(v, OP_ReadCookie, iDb, r1, BTREE_FILE_FORMAT);
-    tdsqlite3VdbeUsesBtree(v, iDb);
-    tdsqlite3VdbeAddOp2(v, OP_AddImm, r1, -2);
-    tdsqlite3VdbeAddOp2(v, OP_IfPos, r1, tdsqlite3VdbeCurrentAddr(v)+2);
-    VdbeCoverage(v);
-    tdsqlite3VdbeAddOp3(v, OP_SetCookie, iDb, BTREE_FILE_FORMAT, 3);
-    tdsqlite3ReleaseTempReg(pParse, r1);
-  }
-
-  /* Reload the table definition */
-  renameReloadSchema(pParse, iDb);
-}
-
-/*
-** This function is called by the parser after the table-name in
-** an "ALTER TABLE <table-name> ADD" statement is parsed. Argument 
-** pSrc is the full-name of the table being altered.
-**
-** This routine makes a (partial) copy of the Table structure
-** for the table being altered and sets Parse.pNewTable to point
-** to it. Routines called by the parser as the column definition
-** is parsed (i.e. tdsqlite3AddColumn()) add the new Column data to 
-** the copy. The copy of the Table structure is deleted by tokenize.c 
-** after parsing is finished.
-**
-** Routine tdsqlite3AlterFinishAddColumn() will be called to complete
-** coding the "ALTER TABLE ... ADD" statement.
-*/
-SQLITE_PRIVATE void tdsqlite3AlterBeginAddColumn(Parse *pParse, SrcList *pSrc){
-  Table *pNew;
-  Table *pTab;
-  int iDb;
-  int i;
-  int nAlloc;
-  tdsqlite3 *db = pParse->db;
-
-  /* Look up the table being altered. */
-  assert( pParse->pNewTable==0 );
-  assert( tdsqlite3BtreeHoldsAllMutexes(db) );
-  if( db->mallocFailed ) goto exit_begin_add_column;
-  pTab = tdsqlite3LocateTableItem(pParse, 0, &pSrc->a[0]);
-  if( !pTab ) goto exit_begin_add_column;
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( IsVirtual(pTab) ){
-    tdsqlite3ErrorMsg(pParse, "virtual tables may not be altered");
-    goto exit_begin_add_column;
-  }
-#endif
-
-  /* Make sure this is not an attempt to ALTER a view. */
-  if( pTab->pSelect ){
-    tdsqlite3ErrorMsg(pParse, "Cannot add a column to a view");
-    goto exit_begin_add_column;
-  }
-  if( SQLITE_OK!=isAlterableTable(pParse, pTab) ){
-    goto exit_begin_add_column;
-  }
-
-  tdsqlite3MayAbort(pParse);
-  assert( pTab->addColOffset>0 );
-  iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-
-  /* Put a copy of the Table struct in Parse.pNewTable for the
-  ** tdsqlite3AddColumn() function and friends to modify.  But modify
-  ** the name by adding an "sqlite_altertab_" prefix.  By adding this
-  ** prefix, we insure that the name will not collide with an existing
-  ** table because user table are not allowed to have the "sqlite_"
-  ** prefix on their name.
-  */
-  pNew = (Table*)tdsqlite3DbMallocZero(db, sizeof(Table));
-  if( !pNew ) goto exit_begin_add_column;
-  pParse->pNewTable = pNew;
-  pNew->nTabRef = 1;
-  pNew->nCol = pTab->nCol;
-  assert( pNew->nCol>0 );
-  nAlloc = (((pNew->nCol-1)/8)*8)+8;
-  assert( nAlloc>=pNew->nCol && nAlloc%8==0 && nAlloc-pNew->nCol<8 );
-  pNew->aCol = (Column*)tdsqlite3DbMallocZero(db, sizeof(Column)*nAlloc);
-  pNew->zName = tdsqlite3MPrintf(db, "sqlite_altertab_%s", pTab->zName);
-  if( !pNew->aCol || !pNew->zName ){
-    assert( db->mallocFailed );
-    goto exit_begin_add_column;
-  }
-  memcpy(pNew->aCol, pTab->aCol, sizeof(Column)*pNew->nCol);
-  for(i=0; i<pNew->nCol; i++){
-    Column *pCol = &pNew->aCol[i];
-    pCol->zName = tdsqlite3DbStrDup(db, pCol->zName);
-    pCol->zColl = 0;
-    pCol->pDflt = 0;
-  }
-  pNew->pSchema = db->aDb[iDb].pSchema;
-  pNew->addColOffset = pTab->addColOffset;
-  pNew->nTabRef = 1;
-
-exit_begin_add_column:
-  tdsqlite3SrcListDelete(db, pSrc);
-  return;
-}
-
-/*
-** Parameter pTab is the subject of an ALTER TABLE ... RENAME COLUMN
-** command. This function checks if the table is a view or virtual
-** table (columns of views or virtual tables may not be renamed). If so,
-** it loads an error message into pParse and returns non-zero.
-**
-** Or, if pTab is not a view or virtual table, zero is returned.
-*/
-#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_VIRTUALTABLE)
-static int isRealTable(Parse *pParse, Table *pTab){
-  const char *zType = 0;
-#ifndef SQLITE_OMIT_VIEW
-  if( pTab->pSelect ){
-    zType = "view";
-  }
-#endif
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( IsVirtual(pTab) ){
-    zType = "virtual table";
-  }
-#endif
-  if( zType ){
-    tdsqlite3ErrorMsg(
-        pParse, "cannot rename columns of %s \"%s\"", zType, pTab->zName
-    );
-    return 1;
-  }
-  return 0;
-}
-#else /* !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_VIRTUALTABLE) */
-# define isRealTable(x,y) (0)
-#endif
-
-/*
-** Handles the following parser reduction:
-**
-**  cmd ::= ALTER TABLE pSrc RENAME COLUMN pOld TO pNew
-*/
-SQLITE_PRIVATE void tdsqlite3AlterRenameColumn(
-  Parse *pParse,                  /* Parsing context */
-  SrcList *pSrc,                  /* Table being altered.  pSrc->nSrc==1 */
-  Token *pOld,                    /* Name of column being changed */
-  Token *pNew                     /* New column name */
-){
-  tdsqlite3 *db = pParse->db;       /* Database connection */
-  Table *pTab;                    /* Table being updated */
-  int iCol;                       /* Index of column being renamed */
-  char *zOld = 0;                 /* Old column name */
-  char *zNew = 0;                 /* New column name */
-  const char *zDb;                /* Name of schema containing the table */
-  int iSchema;                    /* Index of the schema */
-  int bQuote;                     /* True to quote the new name */
-
-  /* Locate the table to be altered */
-  pTab = tdsqlite3LocateTableItem(pParse, 0, &pSrc->a[0]);
-  if( !pTab ) goto exit_rename_column;
-
-  /* Cannot alter a system table */
-  if( SQLITE_OK!=isAlterableTable(pParse, pTab) ) goto exit_rename_column;
-  if( SQLITE_OK!=isRealTable(pParse, pTab) ) goto exit_rename_column;
-
-  /* Which schema holds the table to be altered */  
-  iSchema = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-  assert( iSchema>=0 );
-  zDb = db->aDb[iSchema].zDbSName;
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  /* Invoke the authorization callback. */
-  if( tdsqlite3AuthCheck(pParse, SQLITE_ALTER_TABLE, zDb, pTab->zName, 0) ){
-    goto exit_rename_column;
-  }
-#endif
-
-  /* Make sure the old name really is a column name in the table to be
-  ** altered.  Set iCol to be the index of the column being renamed */
-  zOld = tdsqlite3NameFromToken(db, pOld);
-  if( !zOld ) goto exit_rename_column;
-  for(iCol=0; iCol<pTab->nCol; iCol++){
-    if( 0==tdsqlite3StrICmp(pTab->aCol[iCol].zName, zOld) ) break;
-  }
-  if( iCol==pTab->nCol ){
-    tdsqlite3ErrorMsg(pParse, "no such column: \"%s\"", zOld);
-    goto exit_rename_column;
-  }
-
-  /* Do the rename operation using a recursive UPDATE statement that
-  ** uses the sqlite_rename_column() SQL function to compute the new
-  ** CREATE statement text for the sqlite_master table.
-  */
-  tdsqlite3MayAbort(pParse);
-  zNew = tdsqlite3NameFromToken(db, pNew);
-  if( !zNew ) goto exit_rename_column;
-  assert( pNew->n>0 );
-  bQuote = tdsqlite3Isquote(pNew->z[0]);
-  tdsqlite3NestedParse(pParse, 
-      "UPDATE \"%w\".%s SET "
-      "sql = sqlite_rename_column(sql, type, name, %Q, %Q, %d, %Q, %d, %d) "
-      "WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X' "
-      " AND (type != 'index' OR tbl_name = %Q)"
-      " AND sql NOT LIKE 'create virtual%%'",
-      zDb, MASTER_NAME, 
-      zDb, pTab->zName, iCol, zNew, bQuote, iSchema==1,
-      pTab->zName
-  );
-
-  tdsqlite3NestedParse(pParse, 
-      "UPDATE temp.%s SET "
-      "sql = sqlite_rename_column(sql, type, name, %Q, %Q, %d, %Q, %d, 1) "
-      "WHERE type IN ('trigger', 'view')",
-      MASTER_NAME, 
-      zDb, pTab->zName, iCol, zNew, bQuote
-  );
-
-  /* Drop and reload the database schema. */
-  renameReloadSchema(pParse, iSchema);
-  renameTestSchema(pParse, zDb, iSchema==1);
-
- exit_rename_column:
-  tdsqlite3SrcListDelete(db, pSrc);
-  tdsqlite3DbFree(db, zOld);
-  tdsqlite3DbFree(db, zNew);
-  return;
-}
-
-/*
-** Each RenameToken object maps an element of the parse tree into
-** the token that generated that element.  The parse tree element
-** might be one of:
-**
-**     *  A pointer to an Expr that represents an ID
-**     *  The name of a table column in Column.zName
-**
-** A list of RenameToken objects can be constructed during parsing.
-** Each new object is created by tdsqlite3RenameTokenMap().
-** As the parse tree is transformed, the tdsqlite3RenameTokenRemap()
-** routine is used to keep the mapping current.
-**
-** After the parse finishes, renameTokenFind() routine can be used
-** to look up the actual token value that created some element in
-** the parse tree.
-*/
-struct RenameToken {
-  void *p;               /* Parse tree element created by token t */
-  Token t;               /* The token that created parse tree element p */
-  RenameToken *pNext;    /* Next is a list of all RenameToken objects */
-};
-
-/*
-** The context of an ALTER TABLE RENAME COLUMN operation that gets passed
-** down into the Walker.
-*/
-typedef struct RenameCtx RenameCtx;
-struct RenameCtx {
-  RenameToken *pList;             /* List of tokens to overwrite */
-  int nList;                      /* Number of tokens in pList */
-  int iCol;                       /* Index of column being renamed */
-  Table *pTab;                    /* Table being ALTERed */ 
-  const char *zOld;               /* Old column name */
-};
-
-#ifdef SQLITE_DEBUG
-/*
-** This function is only for debugging. It performs two tasks:
-**
-**   1. Checks that pointer pPtr does not already appear in the 
-**      rename-token list.
-**
-**   2. Dereferences each pointer in the rename-token list.
-**
-** The second is most effective when debugging under valgrind or
-** address-sanitizer or similar. If any of these pointers no longer 
-** point to valid objects, an exception is raised by the memory-checking 
-** tool.
-**
-** The point of this is to prevent comparisons of invalid pointer values.
-** Even though this always seems to work, it is undefined according to the
-** C standard. Example of undefined comparison:
-**
-**     tdsqlite3_free(x);
-**     if( x==y ) ...
-**
-** Technically, as x no longer points into a valid object or to the byte
-** following a valid object, it may not be used in comparison operations.
-*/
-static void renameTokenCheckAll(Parse *pParse, void *pPtr){
-  if( pParse->nErr==0 && pParse->db->mallocFailed==0 ){
-    RenameToken *p;
-    u8 i = 0;
-    for(p=pParse->pRename; p; p=p->pNext){
-      if( p->p ){
-        assert( p->p!=pPtr );
-        i += *(u8*)(p->p);
-      }
-    }
-  }
-}
-#else
-# define renameTokenCheckAll(x,y)
-#endif
-
-/*
-** Remember that the parser tree element pPtr was created using
-** the token pToken.
-**
-** In other words, construct a new RenameToken object and add it
-** to the list of RenameToken objects currently being built up
-** in pParse->pRename.
-**
-** The pPtr argument is returned so that this routine can be used
-** with tail recursion in tokenExpr() routine, for a small performance
-** improvement.
-*/
-SQLITE_PRIVATE void *tdsqlite3RenameTokenMap(Parse *pParse, void *pPtr, Token *pToken){
-  RenameToken *pNew;
-  assert( pPtr || pParse->db->mallocFailed );
-  renameTokenCheckAll(pParse, pPtr);
-  if( pParse->eParseMode!=PARSE_MODE_UNMAP ){
-    pNew = tdsqlite3DbMallocZero(pParse->db, sizeof(RenameToken));
-    if( pNew ){
-      pNew->p = pPtr;
-      pNew->t = *pToken;
-      pNew->pNext = pParse->pRename;
-      pParse->pRename = pNew;
-    }
-  }
-
-  return pPtr;
-}
-
-/*
-** It is assumed that there is already a RenameToken object associated
-** with parse tree element pFrom. This function remaps the associated token
-** to parse tree element pTo.
-*/
-SQLITE_PRIVATE void tdsqlite3RenameTokenRemap(Parse *pParse, void *pTo, void *pFrom){
-  RenameToken *p;
-  renameTokenCheckAll(pParse, pTo);
-  for(p=pParse->pRename; p; p=p->pNext){
-    if( p->p==pFrom ){
-      p->p = pTo;
-      break;
-    }
-  }
-}
-
-/*
-** Walker callback used by tdsqlite3RenameExprUnmap().
-*/
-static int renameUnmapExprCb(Walker *pWalker, Expr *pExpr){
-  Parse *pParse = pWalker->pParse;
-  tdsqlite3RenameTokenRemap(pParse, 0, (void*)pExpr);
-  return WRC_Continue;
-}
-
-/*
-** Iterate through the Select objects that are part of WITH clauses attached
-** to select statement pSelect.
-*/
-static void renameWalkWith(Walker *pWalker, Select *pSelect){
-  With *pWith = pSelect->pWith;
-  if( pWith ){
-    int i;
-    for(i=0; i<pWith->nCte; i++){
-      Select *p = pWith->a[i].pSelect;
-      NameContext sNC;
-      memset(&sNC, 0, sizeof(sNC));
-      sNC.pParse = pWalker->pParse;
-      tdsqlite3SelectPrep(sNC.pParse, p, &sNC);
-      tdsqlite3WalkSelect(pWalker, p);
-      tdsqlite3RenameExprlistUnmap(pWalker->pParse, pWith->a[i].pCols);
-    }
-  }
-}
-
-/*
-** Walker callback used by tdsqlite3RenameExprUnmap().
-*/
-static int renameUnmapSelectCb(Walker *pWalker, Select *p){
-  Parse *pParse = pWalker->pParse;
-  int i;
-  if( pParse->nErr ) return WRC_Abort;
-  if( NEVER(p->selFlags & SF_View) ) return WRC_Prune;
-  if( ALWAYS(p->pEList) ){
-    ExprList *pList = p->pEList;
-    for(i=0; i<pList->nExpr; i++){
-      if( pList->a[i].zEName && pList->a[i].eEName==ENAME_NAME ){
-        tdsqlite3RenameTokenRemap(pParse, 0, (void*)pList->a[i].zEName);
-      }
-    }
-  }
-  if( ALWAYS(p->pSrc) ){  /* Every Select as a SrcList, even if it is empty */
-    SrcList *pSrc = p->pSrc;
-    for(i=0; i<pSrc->nSrc; i++){
-      tdsqlite3RenameTokenRemap(pParse, 0, (void*)pSrc->a[i].zName);
-      if( tdsqlite3WalkExpr(pWalker, pSrc->a[i].pOn) ) return WRC_Abort;
-    }
-  }
-
-  renameWalkWith(pWalker, p);
-  return WRC_Continue;
-}
-
-/*
-** Remove all nodes that are part of expression pExpr from the rename list.
-*/
-SQLITE_PRIVATE void tdsqlite3RenameExprUnmap(Parse *pParse, Expr *pExpr){
-  u8 eMode = pParse->eParseMode;
-  Walker sWalker;
-  memset(&sWalker, 0, sizeof(Walker));
-  sWalker.pParse = pParse;
-  sWalker.xExprCallback = renameUnmapExprCb;
-  sWalker.xSelectCallback = renameUnmapSelectCb;
-  pParse->eParseMode = PARSE_MODE_UNMAP;
-  tdsqlite3WalkExpr(&sWalker, pExpr);
-  pParse->eParseMode = eMode;
-}
-
-/*
-** Remove all nodes that are part of expression-list pEList from the 
-** rename list.
-*/
-SQLITE_PRIVATE void tdsqlite3RenameExprlistUnmap(Parse *pParse, ExprList *pEList){
-  if( pEList ){
-    int i;
-    Walker sWalker;
-    memset(&sWalker, 0, sizeof(Walker));
-    sWalker.pParse = pParse;
-    sWalker.xExprCallback = renameUnmapExprCb;
-    tdsqlite3WalkExprList(&sWalker, pEList);
-    for(i=0; i<pEList->nExpr; i++){
-      if( ALWAYS(pEList->a[i].eEName==ENAME_NAME) ){
-        tdsqlite3RenameTokenRemap(pParse, 0, (void*)pEList->a[i].zEName);
-      }
-    }
-  }
-}
-
-/*
-** Free the list of RenameToken objects given in the second argument
-*/
-static void renameTokenFree(tdsqlite3 *db, RenameToken *pToken){
-  RenameToken *pNext;
-  RenameToken *p;
-  for(p=pToken; p; p=pNext){
-    pNext = p->pNext;
-    tdsqlite3DbFree(db, p);
-  }
-}
-
-/*
-** Search the Parse object passed as the first argument for a RenameToken
-** object associated with parse tree element pPtr. If found, remove it
-** from the Parse object and add it to the list maintained by the
-** RenameCtx object passed as the second argument.
-*/
-static void renameTokenFind(Parse *pParse, struct RenameCtx *pCtx, void *pPtr){
-  RenameToken **pp;
-  assert( pPtr!=0 );
-  for(pp=&pParse->pRename; (*pp); pp=&(*pp)->pNext){
-    if( (*pp)->p==pPtr ){
-      RenameToken *pToken = *pp;
-      *pp = pToken->pNext;
-      pToken->pNext = pCtx->pList;
-      pCtx->pList = pToken;
-      pCtx->nList++;
-      break;
-    }
-  }
-}
-
-/*
-** This is a Walker select callback. It does nothing. It is only required
-** because without a dummy callback, tdsqlite3WalkExpr() and similar do not
-** descend into sub-select statements.
-*/
-static int renameColumnSelectCb(Walker *pWalker, Select *p){
-  if( p->selFlags & SF_View ) return WRC_Prune;
-  renameWalkWith(pWalker, p);
-  return WRC_Continue;
-}
-
-/*
-** This is a Walker expression callback.
-**
-** For every TK_COLUMN node in the expression tree, search to see
-** if the column being references is the column being renamed by an
-** ALTER TABLE statement.  If it is, then attach its associated
-** RenameToken object to the list of RenameToken objects being
-** constructed in RenameCtx object at pWalker->u.pRename.
-*/
-static int renameColumnExprCb(Walker *pWalker, Expr *pExpr){
-  RenameCtx *p = pWalker->u.pRename;
-  if( pExpr->op==TK_TRIGGER 
-   && pExpr->iColumn==p->iCol 
-   && pWalker->pParse->pTriggerTab==p->pTab
-  ){
-    renameTokenFind(pWalker->pParse, p, (void*)pExpr);
-  }else if( pExpr->op==TK_COLUMN 
-   && pExpr->iColumn==p->iCol 
-   && p->pTab==pExpr->y.pTab
-  ){
-    renameTokenFind(pWalker->pParse, p, (void*)pExpr);
-  }
-  return WRC_Continue;
-}
-
-/*
-** The RenameCtx contains a list of tokens that reference a column that
-** is being renamed by an ALTER TABLE statement.  Return the "last"
-** RenameToken in the RenameCtx and remove that RenameToken from the
-** RenameContext.  "Last" means the last RenameToken encountered when
-** the input SQL is parsed from left to right.  Repeated calls to this routine
-** return all column name tokens in the order that they are encountered
-** in the SQL statement.
-*/
-static RenameToken *renameColumnTokenNext(RenameCtx *pCtx){
-  RenameToken *pBest = pCtx->pList;
-  RenameToken *pToken;
-  RenameToken **pp;
-
-  for(pToken=pBest->pNext; pToken; pToken=pToken->pNext){
-    if( pToken->t.z>pBest->t.z ) pBest = pToken;
-  }
-  for(pp=&pCtx->pList; *pp!=pBest; pp=&(*pp)->pNext);
-  *pp = pBest->pNext;
-
-  return pBest;
-}
-
-/*
-** An error occured while parsing or otherwise processing a database
-** object (either pParse->pNewTable, pNewIndex or pNewTrigger) as part of an
-** ALTER TABLE RENAME COLUMN program. The error message emitted by the
-** sub-routine is currently stored in pParse->zErrMsg. This function
-** adds context to the error message and then stores it in pCtx.
-*/
-static void renameColumnParseError(
-  tdsqlite3_context *pCtx, 
-  int bPost,
-  tdsqlite3_value *pType,
-  tdsqlite3_value *pObject,
-  Parse *pParse
-){
-  const char *zT = (const char*)tdsqlite3_value_text(pType);
-  const char *zN = (const char*)tdsqlite3_value_text(pObject);
-  char *zErr;
-
-  zErr = tdsqlite3_mprintf("error in %s %s%s: %s", 
-      zT, zN, (bPost ? " after rename" : ""),
-      pParse->zErrMsg
-  );
-  tdsqlite3_result_error(pCtx, zErr, -1);
-  tdsqlite3_free(zErr);
-}
-
-/*
-** For each name in the the expression-list pEList (i.e. each
-** pEList->a[i].zName) that matches the string in zOld, extract the 
-** corresponding rename-token from Parse object pParse and add it
-** to the RenameCtx pCtx.
-*/
-static void renameColumnElistNames(
-  Parse *pParse, 
-  RenameCtx *pCtx, 
-  ExprList *pEList, 
-  const char *zOld
-){
-  if( pEList ){
-    int i;
-    for(i=0; i<pEList->nExpr; i++){
-      char *zName = pEList->a[i].zEName;
-      if( ALWAYS(pEList->a[i].eEName==ENAME_NAME)
-       && ALWAYS(zName!=0)
-       && 0==tdsqlite3_stricmp(zName, zOld)
-      ){
-        renameTokenFind(pParse, pCtx, (void*)zName);
-      }
-    }
-  }
-}
-
-/*
-** For each name in the the id-list pIdList (i.e. each pIdList->a[i].zName) 
-** that matches the string in zOld, extract the corresponding rename-token 
-** from Parse object pParse and add it to the RenameCtx pCtx.
-*/
-static void renameColumnIdlistNames(
-  Parse *pParse, 
-  RenameCtx *pCtx, 
-  IdList *pIdList, 
-  const char *zOld
-){
-  if( pIdList ){
-    int i;
-    for(i=0; i<pIdList->nId; i++){
-      char *zName = pIdList->a[i].zName;
-      if( 0==tdsqlite3_stricmp(zName, zOld) ){
-        renameTokenFind(pParse, pCtx, (void*)zName);
-      }
-    }
-  }
-}
-
-/*
-** Parse the SQL statement zSql using Parse object (*p). The Parse object
-** is initialized by this function before it is used.
-*/
-static int renameParseSql(
-  Parse *p,                       /* Memory to use for Parse object */
-  const char *zDb,                /* Name of schema SQL belongs to */
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zSql,               /* SQL to parse */
-  int bTemp                       /* True if SQL is from temp schema */
-){
-  int rc;
-  char *zErr = 0;
-
-  db->init.iDb = bTemp ? 1 : tdsqlite3FindDbName(db, zDb);
-
-  /* Parse the SQL statement passed as the first argument. If no error
-  ** occurs and the parse does not result in a new table, index or
-  ** trigger object, the database must be corrupt. */
-  memset(p, 0, sizeof(Parse));
-  p->eParseMode = PARSE_MODE_RENAME;
-  p->db = db;
-  p->nQueryLoop = 1;
-  rc = tdsqlite3RunParser(p, zSql, &zErr);
-  assert( p->zErrMsg==0 );
-  assert( rc!=SQLITE_OK || zErr==0 );
-  p->zErrMsg = zErr;
-  if( db->mallocFailed ) rc = SQLITE_NOMEM;
-  if( rc==SQLITE_OK 
-   && p->pNewTable==0 && p->pNewIndex==0 && p->pNewTrigger==0 
-  ){
-    rc = SQLITE_CORRUPT_BKPT;
-  }
-
-#ifdef SQLITE_DEBUG
-  /* Ensure that all mappings in the Parse.pRename list really do map to
-  ** a part of the input string.  */
-  if( rc==SQLITE_OK ){
-    int nSql = tdsqlite3Strlen30(zSql);
-    RenameToken *pToken;
-    for(pToken=p->pRename; pToken; pToken=pToken->pNext){
-      assert( pToken->t.z>=zSql && &pToken->t.z[pToken->t.n]<=&zSql[nSql] );
-    }
-  }
-#endif
-
-  db->init.iDb = 0;
-  return rc;
-}
-
-/*
-** This function edits SQL statement zSql, replacing each token identified
-** by the linked list pRename with the text of zNew. If argument bQuote is
-** true, then zNew is always quoted first. If no error occurs, the result
-** is loaded into context object pCtx as the result.
-**
-** Or, if an error occurs (i.e. an OOM condition), an error is left in
-** pCtx and an SQLite error code returned.
-*/
-static int renameEditSql(
-  tdsqlite3_context *pCtx,          /* Return result here */
-  RenameCtx *pRename,             /* Rename context */
-  const char *zSql,               /* SQL statement to edit */
-  const char *zNew,               /* New token text */
-  int bQuote                      /* True to always quote token */
-){
-  int nNew = tdsqlite3Strlen30(zNew);
-  int nSql = tdsqlite3Strlen30(zSql);
-  tdsqlite3 *db = tdsqlite3_context_db_handle(pCtx);
-  int rc = SQLITE_OK;
-  char *zQuot;
-  char *zOut;
-  int nQuot;
-
-  /* Set zQuot to point to a buffer containing a quoted copy of the 
-  ** identifier zNew. If the corresponding identifier in the original 
-  ** ALTER TABLE statement was quoted (bQuote==1), then set zNew to
-  ** point to zQuot so that all substitutions are made using the
-  ** quoted version of the new column name.  */
-  zQuot = tdsqlite3MPrintf(db, "\"%w\"", zNew);
-  if( zQuot==0 ){
-    return SQLITE_NOMEM;
-  }else{
-    nQuot = tdsqlite3Strlen30(zQuot);
-  }
-  if( bQuote ){
-    zNew = zQuot;
-    nNew = nQuot;
-  }
-
-  /* At this point pRename->pList contains a list of RenameToken objects
-  ** corresponding to all tokens in the input SQL that must be replaced
-  ** with the new column name. All that remains is to construct and
-  ** return the edited SQL string. */
-  assert( nQuot>=nNew );
-  zOut = tdsqlite3DbMallocZero(db, nSql + pRename->nList*nQuot + 1);
-  if( zOut ){
-    int nOut = nSql;
-    memcpy(zOut, zSql, nSql);
-    while( pRename->pList ){
-      int iOff;                   /* Offset of token to replace in zOut */
-      RenameToken *pBest = renameColumnTokenNext(pRename);
-
-      u32 nReplace;
-      const char *zReplace;
-      if( tdsqlite3IsIdChar(*pBest->t.z) ){
-        nReplace = nNew;
-        zReplace = zNew;
-      }else{
-        nReplace = nQuot;
-        zReplace = zQuot;
-      }
-
-      iOff = pBest->t.z - zSql;
-      if( pBest->t.n!=nReplace ){
-        memmove(&zOut[iOff + nReplace], &zOut[iOff + pBest->t.n], 
-            nOut - (iOff + pBest->t.n)
-        );
-        nOut += nReplace - pBest->t.n;
-        zOut[nOut] = '\0';
-      }
-      memcpy(&zOut[iOff], zReplace, nReplace);
-      tdsqlite3DbFree(db, pBest);
-    }
-
-    tdsqlite3_result_text(pCtx, zOut, -1, SQLITE_TRANSIENT);
-    tdsqlite3DbFree(db, zOut);
-  }else{
-    rc = SQLITE_NOMEM;
-  }
-
-  tdsqlite3_free(zQuot);
-  return rc;
-}
-
-/*
-** Resolve all symbols in the trigger at pParse->pNewTrigger, assuming
-** it was read from the schema of database zDb. Return SQLITE_OK if 
-** successful. Otherwise, return an SQLite error code and leave an error
-** message in the Parse object.
-*/
-static int renameResolveTrigger(Parse *pParse, const char *zDb){
-  tdsqlite3 *db = pParse->db;
-  Trigger *pNew = pParse->pNewTrigger;
-  TriggerStep *pStep;
-  NameContext sNC;
-  int rc = SQLITE_OK;
-
-  memset(&sNC, 0, sizeof(sNC));
-  sNC.pParse = pParse;
-  assert( pNew->pTabSchema );
-  pParse->pTriggerTab = tdsqlite3FindTable(db, pNew->table, 
-      db->aDb[tdsqlite3SchemaToIndex(db, pNew->pTabSchema)].zDbSName
-  );
-  pParse->eTriggerOp = pNew->op;
-  /* ALWAYS() because if the table of the trigger does not exist, the
-  ** error would have been hit before this point */
-  if( ALWAYS(pParse->pTriggerTab) ){
-    rc = tdsqlite3ViewGetColumnNames(pParse, pParse->pTriggerTab);
-  }
-
-  /* Resolve symbols in WHEN clause */
-  if( rc==SQLITE_OK && pNew->pWhen ){
-    rc = tdsqlite3ResolveExprNames(&sNC, pNew->pWhen);
-  }
-
-  for(pStep=pNew->step_list; rc==SQLITE_OK && pStep; pStep=pStep->pNext){
-    if( pStep->pSelect ){
-      tdsqlite3SelectPrep(pParse, pStep->pSelect, &sNC);
-      if( pParse->nErr ) rc = pParse->rc;
-    }
-    if( rc==SQLITE_OK && pStep->zTarget ){
-      Table *pTarget = tdsqlite3LocateTable(pParse, 0, pStep->zTarget, zDb);
-      if( pTarget==0 ){
-        rc = SQLITE_ERROR;
-      }else if( SQLITE_OK==(rc = tdsqlite3ViewGetColumnNames(pParse, pTarget)) ){
-        SrcList sSrc;
-        memset(&sSrc, 0, sizeof(sSrc));
-        sSrc.nSrc = 1;
-        sSrc.a[0].zName = pStep->zTarget;
-        sSrc.a[0].pTab = pTarget;
-        sNC.pSrcList = &sSrc;
-        if( pStep->pWhere ){
-          rc = tdsqlite3ResolveExprNames(&sNC, pStep->pWhere);
-        }
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3ResolveExprListNames(&sNC, pStep->pExprList);
-        }
-        assert( !pStep->pUpsert || (!pStep->pWhere && !pStep->pExprList) );
-        if( pStep->pUpsert ){
-          Upsert *pUpsert = pStep->pUpsert;
-          assert( rc==SQLITE_OK );
-          pUpsert->pUpsertSrc = &sSrc;
-          sNC.uNC.pUpsert = pUpsert;
-          sNC.ncFlags = NC_UUpsert;
-          rc = tdsqlite3ResolveExprListNames(&sNC, pUpsert->pUpsertTarget);
-          if( rc==SQLITE_OK ){
-            ExprList *pUpsertSet = pUpsert->pUpsertSet;
-            rc = tdsqlite3ResolveExprListNames(&sNC, pUpsertSet);
-          }
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3ResolveExprNames(&sNC, pUpsert->pUpsertWhere);
-          }
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3ResolveExprNames(&sNC, pUpsert->pUpsertTargetWhere);
-          }
-          sNC.ncFlags = 0;
-        }
-        sNC.pSrcList = 0;
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** Invoke tdsqlite3WalkExpr() or tdsqlite3WalkSelect() on all Select or Expr
-** objects that are part of the trigger passed as the second argument.
-*/
-static void renameWalkTrigger(Walker *pWalker, Trigger *pTrigger){
-  TriggerStep *pStep;
-
-  /* Find tokens to edit in WHEN clause */
-  tdsqlite3WalkExpr(pWalker, pTrigger->pWhen);
-
-  /* Find tokens to edit in trigger steps */
-  for(pStep=pTrigger->step_list; pStep; pStep=pStep->pNext){
-    tdsqlite3WalkSelect(pWalker, pStep->pSelect);
-    tdsqlite3WalkExpr(pWalker, pStep->pWhere);
-    tdsqlite3WalkExprList(pWalker, pStep->pExprList);
-    if( pStep->pUpsert ){
-      Upsert *pUpsert = pStep->pUpsert;
-      tdsqlite3WalkExprList(pWalker, pUpsert->pUpsertTarget);
-      tdsqlite3WalkExprList(pWalker, pUpsert->pUpsertSet);
-      tdsqlite3WalkExpr(pWalker, pUpsert->pUpsertWhere);
-      tdsqlite3WalkExpr(pWalker, pUpsert->pUpsertTargetWhere);
-    }
-  }
-}
-
-/*
-** Free the contents of Parse object (*pParse). Do not free the memory
-** occupied by the Parse object itself.
-*/
-static void renameParseCleanup(Parse *pParse){
-  tdsqlite3 *db = pParse->db;
-  Index *pIdx;
-  if( pParse->pVdbe ){
-    tdsqlite3VdbeFinalize(pParse->pVdbe);
-  }
-  tdsqlite3DeleteTable(db, pParse->pNewTable);
-  while( (pIdx = pParse->pNewIndex)!=0 ){
-    pParse->pNewIndex = pIdx->pNext;
-    tdsqlite3FreeIndex(db, pIdx);
-  }
-  tdsqlite3DeleteTrigger(db, pParse->pNewTrigger);
-  tdsqlite3DbFree(db, pParse->zErrMsg);
-  renameTokenFree(db, pParse->pRename);
-  tdsqlite3ParserReset(pParse);
-}
-
-/*
-** SQL function:
-**
-**     sqlite_rename_column(zSql, iCol, bQuote, zNew, zTable, zOld)
-**
-**   0. zSql:     SQL statement to rewrite
-**   1. type:     Type of object ("table", "view" etc.)
-**   2. object:   Name of object
-**   3. Database: Database name (e.g. "main")
-**   4. Table:    Table name
-**   5. iCol:     Index of column to rename
-**   6. zNew:     New column name
-**   7. bQuote:   Non-zero if the new column name should be quoted.
-**   8. bTemp:    True if zSql comes from temp schema
-**
-** Do a column rename operation on the CREATE statement given in zSql.
-** The iCol-th column (left-most is 0) of table zTable is renamed from zCol
-** into zNew.  The name should be quoted if bQuote is true.
-**
-** This function is used internally by the ALTER TABLE RENAME COLUMN command.
-** It is only accessible to SQL created using tdsqlite3NestedParse().  It is
-** not reachable from ordinary SQL passed into tdsqlite3_prepare().
-*/
-static void renameColumnFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **argv
-){
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  RenameCtx sCtx;
-  const char *zSql = (const char*)tdsqlite3_value_text(argv[0]);
-  const char *zDb = (const char*)tdsqlite3_value_text(argv[3]);
-  const char *zTable = (const char*)tdsqlite3_value_text(argv[4]);
-  int iCol = tdsqlite3_value_int(argv[5]);
-  const char *zNew = (const char*)tdsqlite3_value_text(argv[6]);
-  int bQuote = tdsqlite3_value_int(argv[7]);
-  int bTemp = tdsqlite3_value_int(argv[8]);
-  const char *zOld;
-  int rc;
-  Parse sParse;
-  Walker sWalker;
-  Index *pIdx;
-  int i;
-  Table *pTab;
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  tdsqlite3_xauth xAuth = db->xAuth;
-#endif
-
-  UNUSED_PARAMETER(NotUsed);
-  if( zSql==0 ) return;
-  if( zTable==0 ) return;
-  if( zNew==0 ) return;
-  if( iCol<0 ) return;
-  tdsqlite3BtreeEnterAll(db);
-  pTab = tdsqlite3FindTable(db, zTable, zDb);
-  if( pTab==0 || iCol>=pTab->nCol ){
-    tdsqlite3BtreeLeaveAll(db);
-    return;
-  }
-  zOld = pTab->aCol[iCol].zName;
-  memset(&sCtx, 0, sizeof(sCtx));
-  sCtx.iCol = ((iCol==pTab->iPKey) ? -1 : iCol);
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  db->xAuth = 0;
-#endif
-  rc = renameParseSql(&sParse, zDb, db, zSql, bTemp);
-
-  /* Find tokens that need to be replaced. */
-  memset(&sWalker, 0, sizeof(Walker));
-  sWalker.pParse = &sParse;
-  sWalker.xExprCallback = renameColumnExprCb;
-  sWalker.xSelectCallback = renameColumnSelectCb;
-  sWalker.u.pRename = &sCtx;
-
-  sCtx.pTab = pTab;
-  if( rc!=SQLITE_OK ) goto renameColumnFunc_done;
-  if( sParse.pNewTable ){
-    Select *pSelect = sParse.pNewTable->pSelect;
-    if( pSelect ){
-      pSelect->selFlags &= ~SF_View;
-      sParse.rc = SQLITE_OK;
-      tdsqlite3SelectPrep(&sParse, pSelect, 0);
-      rc = (db->mallocFailed ? SQLITE_NOMEM : sParse.rc);
-      if( rc==SQLITE_OK ){
-        tdsqlite3WalkSelect(&sWalker, pSelect);
-      }
-      if( rc!=SQLITE_OK ) goto renameColumnFunc_done;
-    }else{
-      /* A regular table */
-      int bFKOnly = tdsqlite3_stricmp(zTable, sParse.pNewTable->zName);
-      FKey *pFKey;
-      assert( sParse.pNewTable->pSelect==0 );
-      sCtx.pTab = sParse.pNewTable;
-      if( bFKOnly==0 ){
-        renameTokenFind(
-            &sParse, &sCtx, (void*)sParse.pNewTable->aCol[iCol].zName
-        );
-        if( sCtx.iCol<0 ){
-          renameTokenFind(&sParse, &sCtx, (void*)&sParse.pNewTable->iPKey);
-        }
-        tdsqlite3WalkExprList(&sWalker, sParse.pNewTable->pCheck);
-        for(pIdx=sParse.pNewTable->pIndex; pIdx; pIdx=pIdx->pNext){
-          tdsqlite3WalkExprList(&sWalker, pIdx->aColExpr);
-        }
-        for(pIdx=sParse.pNewIndex; pIdx; pIdx=pIdx->pNext){
-          tdsqlite3WalkExprList(&sWalker, pIdx->aColExpr);
-        }
-      }
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-      for(i=0; i<sParse.pNewTable->nCol; i++){
-        tdsqlite3WalkExpr(&sWalker, sParse.pNewTable->aCol[i].pDflt);
-      }
-#endif
-
-      for(pFKey=sParse.pNewTable->pFKey; pFKey; pFKey=pFKey->pNextFrom){
-        for(i=0; i<pFKey->nCol; i++){
-          if( bFKOnly==0 && pFKey->aCol[i].iFrom==iCol ){
-            renameTokenFind(&sParse, &sCtx, (void*)&pFKey->aCol[i]);
-          }
-          if( 0==tdsqlite3_stricmp(pFKey->zTo, zTable)
-           && 0==tdsqlite3_stricmp(pFKey->aCol[i].zCol, zOld)
-          ){
-            renameTokenFind(&sParse, &sCtx, (void*)pFKey->aCol[i].zCol);
-          }
-        }
-      }
-    }
-  }else if( sParse.pNewIndex ){
-    tdsqlite3WalkExprList(&sWalker, sParse.pNewIndex->aColExpr);
-    tdsqlite3WalkExpr(&sWalker, sParse.pNewIndex->pPartIdxWhere);
-  }else{
-    /* A trigger */
-    TriggerStep *pStep;
-    rc = renameResolveTrigger(&sParse, (bTemp ? 0 : zDb));
-    if( rc!=SQLITE_OK ) goto renameColumnFunc_done;
-
-    for(pStep=sParse.pNewTrigger->step_list; pStep; pStep=pStep->pNext){
-      if( pStep->zTarget ){ 
-        Table *pTarget = tdsqlite3LocateTable(&sParse, 0, pStep->zTarget, zDb);
-        if( pTarget==pTab ){
-          if( pStep->pUpsert ){
-            ExprList *pUpsertSet = pStep->pUpsert->pUpsertSet;
-            renameColumnElistNames(&sParse, &sCtx, pUpsertSet, zOld);
-          }
-          renameColumnIdlistNames(&sParse, &sCtx, pStep->pIdList, zOld);
-          renameColumnElistNames(&sParse, &sCtx, pStep->pExprList, zOld);
-        }
-      }
-    }
-
-
-    /* Find tokens to edit in UPDATE OF clause */
-    if( sParse.pTriggerTab==pTab ){
-      renameColumnIdlistNames(&sParse, &sCtx,sParse.pNewTrigger->pColumns,zOld);
-    }
-
-    /* Find tokens to edit in various expressions and selects */
-    renameWalkTrigger(&sWalker, sParse.pNewTrigger);
-  }
-
-  assert( rc==SQLITE_OK );
-  rc = renameEditSql(context, &sCtx, zSql, zNew, bQuote);
-
-renameColumnFunc_done:
-  if( rc!=SQLITE_OK ){
-    if( sParse.zErrMsg ){
-      renameColumnParseError(context, 0, argv[1], argv[2], &sParse);
-    }else{
-      tdsqlite3_result_error_code(context, rc);
-    }
-  }
-
-  renameParseCleanup(&sParse);
-  renameTokenFree(db, sCtx.pList);
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  db->xAuth = xAuth;
-#endif
-  tdsqlite3BtreeLeaveAll(db);
-}
-
-/*
-** Walker expression callback used by "RENAME TABLE". 
-*/
-static int renameTableExprCb(Walker *pWalker, Expr *pExpr){
-  RenameCtx *p = pWalker->u.pRename;
-  if( pExpr->op==TK_COLUMN && p->pTab==pExpr->y.pTab ){
-    renameTokenFind(pWalker->pParse, p, (void*)&pExpr->y.pTab);
-  }
-  return WRC_Continue;
-}
-
-/*
-** Walker select callback used by "RENAME TABLE". 
-*/
-static int renameTableSelectCb(Walker *pWalker, Select *pSelect){
-  int i;
-  RenameCtx *p = pWalker->u.pRename;
-  SrcList *pSrc = pSelect->pSrc;
-  if( pSelect->selFlags & SF_View ) return WRC_Prune;
-  if( pSrc==0 ){
-    assert( pWalker->pParse->db->mallocFailed );
-    return WRC_Abort;
-  }
-  for(i=0; i<pSrc->nSrc; i++){
-    struct SrcList_item *pItem = &pSrc->a[i];
-    if( pItem->pTab==p->pTab ){
-      renameTokenFind(pWalker->pParse, p, pItem->zName);
-    }
-  }
-  renameWalkWith(pWalker, pSelect);
-
-  return WRC_Continue;
-}
-
-
-/*
-** This C function implements an SQL user function that is used by SQL code
-** generated by the ALTER TABLE ... RENAME command to modify the definition
-** of any foreign key constraints that use the table being renamed as the 
-** parent table. It is passed three arguments:
-**
-**   0: The database containing the table being renamed.
-**   1. type:     Type of object ("table", "view" etc.)
-**   2. object:   Name of object
-**   3: The complete text of the schema statement being modified,
-**   4: The old name of the table being renamed, and
-**   5: The new name of the table being renamed.
-**   6: True if the schema statement comes from the temp db.
-**
-** It returns the new schema statement. For example:
-**
-** sqlite_rename_table('main', 'CREATE TABLE t1(a REFERENCES t2)','t2','t3',0)
-**       -> 'CREATE TABLE t1(a REFERENCES t3)'
-*/
-static void renameTableFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **argv
-){
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  const char *zDb = (const char*)tdsqlite3_value_text(argv[0]);
-  const char *zInput = (const char*)tdsqlite3_value_text(argv[3]);
-  const char *zOld = (const char*)tdsqlite3_value_text(argv[4]);
-  const char *zNew = (const char*)tdsqlite3_value_text(argv[5]);
-  int bTemp = tdsqlite3_value_int(argv[6]);
-  UNUSED_PARAMETER(NotUsed);
-
-  if( zInput && zOld && zNew ){
-    Parse sParse;
-    int rc;
-    int bQuote = 1;
-    RenameCtx sCtx;
-    Walker sWalker;
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-    tdsqlite3_xauth xAuth = db->xAuth;
-    db->xAuth = 0;
-#endif
-
-    tdsqlite3BtreeEnterAll(db);
-
-    memset(&sCtx, 0, sizeof(RenameCtx));
-    sCtx.pTab = tdsqlite3FindTable(db, zOld, zDb);
-    memset(&sWalker, 0, sizeof(Walker));
-    sWalker.pParse = &sParse;
-    sWalker.xExprCallback = renameTableExprCb;
-    sWalker.xSelectCallback = renameTableSelectCb;
-    sWalker.u.pRename = &sCtx;
-
-    rc = renameParseSql(&sParse, zDb, db, zInput, bTemp);
-
-    if( rc==SQLITE_OK ){
-      int isLegacy = (db->flags & SQLITE_LegacyAlter);
-      if( sParse.pNewTable ){
-        Table *pTab = sParse.pNewTable;
-
-        if( pTab->pSelect ){
-          if( isLegacy==0 ){
-            Select *pSelect = pTab->pSelect;
-            NameContext sNC;
-            memset(&sNC, 0, sizeof(sNC));
-            sNC.pParse = &sParse;
-
-            assert( pSelect->selFlags & SF_View );
-            pSelect->selFlags &= ~SF_View;
-            tdsqlite3SelectPrep(&sParse, pTab->pSelect, &sNC);
-            if( sParse.nErr ){
-              rc = sParse.rc;
-            }else{
-              tdsqlite3WalkSelect(&sWalker, pTab->pSelect);
-            }
-          }
-        }else{
-          /* Modify any FK definitions to point to the new table. */
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-          if( isLegacy==0 || (db->flags & SQLITE_ForeignKeys) ){
-            FKey *pFKey;
-            for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
-              if( tdsqlite3_stricmp(pFKey->zTo, zOld)==0 ){
-                renameTokenFind(&sParse, &sCtx, (void*)pFKey->zTo);
-              }
-            }
-          }
-#endif
-
-          /* If this is the table being altered, fix any table refs in CHECK
-          ** expressions. Also update the name that appears right after the
-          ** "CREATE [VIRTUAL] TABLE" bit. */
-          if( tdsqlite3_stricmp(zOld, pTab->zName)==0 ){
-            sCtx.pTab = pTab;
-            if( isLegacy==0 ){
-              tdsqlite3WalkExprList(&sWalker, pTab->pCheck);
-            }
-            renameTokenFind(&sParse, &sCtx, pTab->zName);
-          }
-        }
-      }
-
-      else if( sParse.pNewIndex ){
-        renameTokenFind(&sParse, &sCtx, sParse.pNewIndex->zName);
-        if( isLegacy==0 ){
-          tdsqlite3WalkExpr(&sWalker, sParse.pNewIndex->pPartIdxWhere);
-        }
-      }
-
-#ifndef SQLITE_OMIT_TRIGGER
-      else{
-        Trigger *pTrigger = sParse.pNewTrigger;
-        TriggerStep *pStep;
-        if( 0==tdsqlite3_stricmp(sParse.pNewTrigger->table, zOld) 
-            && sCtx.pTab->pSchema==pTrigger->pTabSchema
-          ){
-          renameTokenFind(&sParse, &sCtx, sParse.pNewTrigger->table);
-        }
-
-        if( isLegacy==0 ){
-          rc = renameResolveTrigger(&sParse, bTemp ? 0 : zDb);
-          if( rc==SQLITE_OK ){
-            renameWalkTrigger(&sWalker, pTrigger);
-            for(pStep=pTrigger->step_list; pStep; pStep=pStep->pNext){
-              if( pStep->zTarget && 0==tdsqlite3_stricmp(pStep->zTarget, zOld) ){
-                renameTokenFind(&sParse, &sCtx, pStep->zTarget);
-              }
-            }
-          }
-        }
-      }
-#endif
-    }
-
-    if( rc==SQLITE_OK ){
-      rc = renameEditSql(context, &sCtx, zInput, zNew, bQuote);
-    }
-    if( rc!=SQLITE_OK ){
-      if( sParse.zErrMsg ){
-        renameColumnParseError(context, 0, argv[1], argv[2], &sParse);
-      }else{
-        tdsqlite3_result_error_code(context, rc);
-      }
-    }
-
-    renameParseCleanup(&sParse);
-    renameTokenFree(db, sCtx.pList);
-    tdsqlite3BtreeLeaveAll(db);
-#ifndef SQLITE_OMIT_AUTHORIZATION
-    db->xAuth = xAuth;
-#endif
-  }
-
-  return;
-}
-
-/*
-** An SQL user function that checks that there are no parse or symbol
-** resolution problems in a CREATE TRIGGER|TABLE|VIEW|INDEX statement.
-** After an ALTER TABLE .. RENAME operation is performed and the schema
-** reloaded, this function is called on each SQL statement in the schema
-** to ensure that it is still usable.
-**
-**   0: Database name ("main", "temp" etc.).
-**   1: SQL statement.
-**   2: Object type ("view", "table", "trigger" or "index").
-**   3: Object name.
-**   4: True if object is from temp schema.
-**
-** Unless it finds an error, this function normally returns NULL. However, it
-** returns integer value 1 if:
-**
-**   * the SQL argument creates a trigger, and
-**   * the table that the trigger is attached to is in database zDb.
-*/
-static void renameTableTest(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **argv
-){
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  char const *zDb = (const char*)tdsqlite3_value_text(argv[0]);
-  char const *zInput = (const char*)tdsqlite3_value_text(argv[1]);
-  int bTemp = tdsqlite3_value_int(argv[4]);
-  int isLegacy = (db->flags & SQLITE_LegacyAlter);
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  tdsqlite3_xauth xAuth = db->xAuth;
-  db->xAuth = 0;
-#endif
-
-  UNUSED_PARAMETER(NotUsed);
-  if( zDb && zInput ){
-    int rc;
-    Parse sParse;
-    rc = renameParseSql(&sParse, zDb, db, zInput, bTemp);
-    if( rc==SQLITE_OK ){
-      if( isLegacy==0 && sParse.pNewTable && sParse.pNewTable->pSelect ){
-        NameContext sNC;
-        memset(&sNC, 0, sizeof(sNC));
-        sNC.pParse = &sParse;
-        tdsqlite3SelectPrep(&sParse, sParse.pNewTable->pSelect, &sNC);
-        if( sParse.nErr ) rc = sParse.rc;
-      }
-
-      else if( sParse.pNewTrigger ){
-        if( isLegacy==0 ){
-          rc = renameResolveTrigger(&sParse, bTemp ? 0 : zDb);
-        }
-        if( rc==SQLITE_OK ){
-          int i1 = tdsqlite3SchemaToIndex(db, sParse.pNewTrigger->pTabSchema);
-          int i2 = tdsqlite3FindDbName(db, zDb);
-          if( i1==i2 ) tdsqlite3_result_int(context, 1);
-        }
-      }
-    }
-
-    if( rc!=SQLITE_OK ){
-      renameColumnParseError(context, 1, argv[2], argv[3], &sParse);
-    }
-    renameParseCleanup(&sParse);
-  }
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  db->xAuth = xAuth;
-#endif
-}
-
-/*
-** Register built-in functions used to help implement ALTER TABLE
-*/
-SQLITE_PRIVATE void tdsqlite3AlterFunctions(void){
-  static FuncDef aAlterTableFuncs[] = {
-    INTERNAL_FUNCTION(sqlite_rename_column, 9, renameColumnFunc),
-    INTERNAL_FUNCTION(sqlite_rename_table,  7, renameTableFunc),
-    INTERNAL_FUNCTION(sqlite_rename_test,   5, renameTableTest),
-  };
-  tdsqlite3InsertBuiltinFuncs(aAlterTableFuncs, ArraySize(aAlterTableFuncs));
-}
-#endif  /* SQLITE_ALTER_TABLE */
-
-/************** End of alter.c ***********************************************/
-/************** Begin file analyze.c *****************************************/
-/*
-** 2005-07-08
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code associated with the ANALYZE command.
-**
-** The ANALYZE command gather statistics about the content of tables
-** and indices.  These statistics are made available to the query planner
-** to help it make better decisions about how to perform queries.
-**
-** The following system tables are or have been supported:
-**
-**    CREATE TABLE sqlite_stat1(tbl, idx, stat);
-**    CREATE TABLE sqlite_stat2(tbl, idx, sampleno, sample);
-**    CREATE TABLE sqlite_stat3(tbl, idx, nEq, nLt, nDLt, sample);
-**    CREATE TABLE sqlite_stat4(tbl, idx, nEq, nLt, nDLt, sample);
-**
-** Additional tables might be added in future releases of SQLite.
-** The sqlite_stat2 table is not created or used unless the SQLite version
-** is between 3.6.18 and 3.7.8, inclusive, and unless SQLite is compiled
-** with SQLITE_ENABLE_STAT2.  The sqlite_stat2 table is deprecated.
-** The sqlite_stat2 table is superseded by sqlite_stat3, which is only
-** created and used by SQLite versions 3.7.9 through 3.29.0 when
-** SQLITE_ENABLE_STAT3 defined.  The functionality of sqlite_stat3
-** is a superset of sqlite_stat2 and is also now deprecated.  The
-** sqlite_stat4 is an enhanced version of sqlite_stat3 and is only 
-** available when compiled with SQLITE_ENABLE_STAT4 and in SQLite
-** versions 3.8.1 and later.  STAT4 is the only variant that is still
-** supported.
-**
-** For most applications, sqlite_stat1 provides all the statistics required
-** for the query planner to make good choices.
-**
-** Format of sqlite_stat1:
-**
-** There is normally one row per index, with the index identified by the
-** name in the idx column.  The tbl column is the name of the table to
-** which the index belongs.  In each such row, the stat column will be
-** a string consisting of a list of integers.  The first integer in this
-** list is the number of rows in the index.  (This is the same as the
-** number of rows in the table, except for partial indices.)  The second
-** integer is the average number of rows in the index that have the same
-** value in the first column of the index.  The third integer is the average
-** number of rows in the index that have the same value for the first two
-** columns.  The N-th integer (for N>1) is the average number of rows in 
-** the index which have the same value for the first N-1 columns.  For
-** a K-column index, there will be K+1 integers in the stat column.  If
-** the index is unique, then the last integer will be 1.
-**
-** The list of integers in the stat column can optionally be followed
-** by the keyword "unordered".  The "unordered" keyword, if it is present,
-** must be separated from the last integer by a single space.  If the
-** "unordered" keyword is present, then the query planner assumes that
-** the index is unordered and will not use the index for a range query.
-** 
-** If the sqlite_stat1.idx column is NULL, then the sqlite_stat1.stat
-** column contains a single integer which is the (estimated) number of
-** rows in the table identified by sqlite_stat1.tbl.
-**
-** Format of sqlite_stat2:
-**
-** The sqlite_stat2 is only created and is only used if SQLite is compiled
-** with SQLITE_ENABLE_STAT2 and if the SQLite version number is between
-** 3.6.18 and 3.7.8.  The "stat2" table contains additional information
-** about the distribution of keys within an index.  The index is identified by
-** the "idx" column and the "tbl" column is the name of the table to which
-** the index belongs.  There are usually 10 rows in the sqlite_stat2
-** table for each index.
-**
-** The sqlite_stat2 entries for an index that have sampleno between 0 and 9
-** inclusive are samples of the left-most key value in the index taken at
-** evenly spaced points along the index.  Let the number of samples be S
-** (10 in the standard build) and let C be the number of rows in the index.
-** Then the sampled rows are given by:
-**
-**     rownumber = (i*C*2 + C)/(S*2)
-**
-** For i between 0 and S-1.  Conceptually, the index space is divided into
-** S uniform buckets and the samples are the middle row from each bucket.
-**
-** The format for sqlite_stat2 is recorded here for legacy reference.  This
-** version of SQLite does not support sqlite_stat2.  It neither reads nor
-** writes the sqlite_stat2 table.  This version of SQLite only supports
-** sqlite_stat3.
-**
-** Format for sqlite_stat3:
-**
-** The sqlite_stat3 format is a subset of sqlite_stat4.  Hence, the
-** sqlite_stat4 format will be described first.  Further information
-** about sqlite_stat3 follows the sqlite_stat4 description.
-**
-** Format for sqlite_stat4:
-**
-** As with sqlite_stat2, the sqlite_stat4 table contains histogram data
-** to aid the query planner in choosing good indices based on the values
-** that indexed columns are compared against in the WHERE clauses of
-** queries.
-**
-** The sqlite_stat4 table contains multiple entries for each index.
-** The idx column names the index and the tbl column is the table of the
-** index.  If the idx and tbl columns are the same, then the sample is
-** of the INTEGER PRIMARY KEY.  The sample column is a blob which is the
-** binary encoding of a key from the index.  The nEq column is a
-** list of integers.  The first integer is the approximate number
-** of entries in the index whose left-most column exactly matches
-** the left-most column of the sample.  The second integer in nEq
-** is the approximate number of entries in the index where the
-** first two columns match the first two columns of the sample.
-** And so forth.  nLt is another list of integers that show the approximate
-** number of entries that are strictly less than the sample.  The first
-** integer in nLt contains the number of entries in the index where the
-** left-most column is less than the left-most column of the sample.
-** The K-th integer in the nLt entry is the number of index entries 
-** where the first K columns are less than the first K columns of the
-** sample.  The nDLt column is like nLt except that it contains the 
-** number of distinct entries in the index that are less than the
-** sample.
-**
-** There can be an arbitrary number of sqlite_stat4 entries per index.
-** The ANALYZE command will typically generate sqlite_stat4 tables
-** that contain between 10 and 40 samples which are distributed across
-** the key space, though not uniformly, and which include samples with
-** large nEq values.
-**
-** Format for sqlite_stat3 redux:
-**
-** The sqlite_stat3 table is like sqlite_stat4 except that it only
-** looks at the left-most column of the index.  The sqlite_stat3.sample
-** column contains the actual value of the left-most column instead
-** of a blob encoding of the complete index key as is found in
-** sqlite_stat4.sample.  The nEq, nLt, and nDLt entries of sqlite_stat3
-** all contain just a single integer which is the same as the first
-** integer in the equivalent columns in sqlite_stat4.
-*/
-#ifndef SQLITE_OMIT_ANALYZE
-/* #include "sqliteInt.h" */
-
-#if defined(SQLITE_ENABLE_STAT4)
-# define IsStat4     1
-#else
-# define IsStat4     0
-# undef SQLITE_STAT4_SAMPLES
-# define SQLITE_STAT4_SAMPLES 1
-#endif
-
-/*
-** This routine generates code that opens the sqlite_statN tables.
-** The sqlite_stat1 table is always relevant.  sqlite_stat2 is now
-** obsolete.  sqlite_stat3 and sqlite_stat4 are only opened when
-** appropriate compile-time options are provided.
-**
-** If the sqlite_statN tables do not previously exist, it is created.
-**
-** Argument zWhere may be a pointer to a buffer containing a table name,
-** or it may be a NULL pointer. If it is not NULL, then all entries in
-** the sqlite_statN tables associated with the named table are deleted.
-** If zWhere==0, then code is generated to delete all stat table entries.
-*/
-static void openStatTable(
-  Parse *pParse,          /* Parsing context */
-  int iDb,                /* The database we are looking in */
-  int iStatCur,           /* Open the sqlite_stat1 table on this cursor */
-  const char *zWhere,     /* Delete entries for this table or index */
-  const char *zWhereType  /* Either "tbl" or "idx" */
-){
-  static const struct {
-    const char *zName;
-    const char *zCols;
-  } aTable[] = {
-    { "sqlite_stat1", "tbl,idx,stat" },
-#if defined(SQLITE_ENABLE_STAT4)
-    { "sqlite_stat4", "tbl,idx,neq,nlt,ndlt,sample" },
-#else
-    { "sqlite_stat4", 0 },
-#endif
-    { "sqlite_stat3", 0 },
-  };
-  int i;
-  tdsqlite3 *db = pParse->db;
-  Db *pDb;
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  int aRoot[ArraySize(aTable)];
-  u8 aCreateTbl[ArraySize(aTable)];
-
-  if( v==0 ) return;
-  assert( tdsqlite3BtreeHoldsAllMutexes(db) );
-  assert( tdsqlite3VdbeDb(v)==db );
-  pDb = &db->aDb[iDb];
-
-  /* Create new statistic tables if they do not exist, or clear them
-  ** if they do already exist.
-  */
-  for(i=0; i<ArraySize(aTable); i++){
-    const char *zTab = aTable[i].zName;
-    Table *pStat;
-    if( (pStat = tdsqlite3FindTable(db, zTab, pDb->zDbSName))==0 ){
-      if( aTable[i].zCols ){
-        /* The sqlite_statN table does not exist. Create it. Note that a 
-        ** side-effect of the CREATE TABLE statement is to leave the rootpage 
-        ** of the new table in register pParse->regRoot. This is important 
-        ** because the OpenWrite opcode below will be needing it. */
-        tdsqlite3NestedParse(pParse,
-            "CREATE TABLE %Q.%s(%s)", pDb->zDbSName, zTab, aTable[i].zCols
-        );
-        aRoot[i] = pParse->regRoot;
-        aCreateTbl[i] = OPFLAG_P2ISREG;
-      }
-    }else{
-      /* The table already exists. If zWhere is not NULL, delete all entries 
-      ** associated with the table zWhere. If zWhere is NULL, delete the
-      ** entire contents of the table. */
-      aRoot[i] = pStat->tnum;
-      aCreateTbl[i] = 0;
-      tdsqlite3TableLock(pParse, iDb, aRoot[i], 1, zTab);
-      if( zWhere ){
-        tdsqlite3NestedParse(pParse,
-           "DELETE FROM %Q.%s WHERE %s=%Q",
-           pDb->zDbSName, zTab, zWhereType, zWhere
-        );
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-      }else if( db->xPreUpdateCallback ){
-        tdsqlite3NestedParse(pParse, "DELETE FROM %Q.%s", pDb->zDbSName, zTab);
-#endif
-      }else{
-        /* The sqlite_stat[134] table already exists.  Delete all rows. */
-        tdsqlite3VdbeAddOp2(v, OP_Clear, aRoot[i], iDb);
-      }
-    }
-  }
-
-  /* Open the sqlite_stat[134] tables for writing. */
-  for(i=0; aTable[i].zCols; i++){
-    assert( i<ArraySize(aTable) );
-    tdsqlite3VdbeAddOp4Int(v, OP_OpenWrite, iStatCur+i, aRoot[i], iDb, 3);
-    tdsqlite3VdbeChangeP5(v, aCreateTbl[i]);
-    VdbeComment((v, aTable[i].zName));
-  }
-}
-
-/*
-** Recommended number of samples for sqlite_stat4
-*/
-#ifndef SQLITE_STAT4_SAMPLES
-# define SQLITE_STAT4_SAMPLES 24
-#endif
-
-/*
-** Three SQL functions - stat_init(), stat_push(), and stat_get() -
-** share an instance of the following structure to hold their state
-** information.
-*/
-typedef struct Stat4Accum Stat4Accum;
-typedef struct Stat4Sample Stat4Sample;
-struct Stat4Sample {
-  tRowcnt *anEq;                  /* sqlite_stat4.nEq */
-  tRowcnt *anDLt;                 /* sqlite_stat4.nDLt */
-#ifdef SQLITE_ENABLE_STAT4
-  tRowcnt *anLt;                  /* sqlite_stat4.nLt */
-  union {
-    i64 iRowid;                     /* Rowid in main table of the key */
-    u8 *aRowid;                     /* Key for WITHOUT ROWID tables */
-  } u;
-  u32 nRowid;                     /* Sizeof aRowid[] */
-  u8 isPSample;                   /* True if a periodic sample */
-  int iCol;                       /* If !isPSample, the reason for inclusion */
-  u32 iHash;                      /* Tiebreaker hash */
-#endif
-};                                                    
-struct Stat4Accum {
-  tRowcnt nRow;             /* Number of rows in the entire table */
-  tRowcnt nPSample;         /* How often to do a periodic sample */
-  int nCol;                 /* Number of columns in index + pk/rowid */
-  int nKeyCol;              /* Number of index columns w/o the pk/rowid */
-  int mxSample;             /* Maximum number of samples to accumulate */
-  Stat4Sample current;      /* Current row as a Stat4Sample */
-  u32 iPrn;                 /* Pseudo-random number used for sampling */
-  Stat4Sample *aBest;       /* Array of nCol best samples */
-  int iMin;                 /* Index in a[] of entry with minimum score */
-  int nSample;              /* Current number of samples */
-  int nMaxEqZero;           /* Max leading 0 in anEq[] for any a[] entry */
-  int iGet;                 /* Index of current sample accessed by stat_get() */
-  Stat4Sample *a;           /* Array of mxSample Stat4Sample objects */
-  tdsqlite3 *db;              /* Database connection, for malloc() */
-};
-
-/* Reclaim memory used by a Stat4Sample
-*/
-#ifdef SQLITE_ENABLE_STAT4
-static void sampleClear(tdsqlite3 *db, Stat4Sample *p){
-  assert( db!=0 );
-  if( p->nRowid ){
-    tdsqlite3DbFree(db, p->u.aRowid);
-    p->nRowid = 0;
-  }
-}
-#endif
-
-/* Initialize the BLOB value of a ROWID
-*/
-#ifdef SQLITE_ENABLE_STAT4
-static void sampleSetRowid(tdsqlite3 *db, Stat4Sample *p, int n, const u8 *pData){
-  assert( db!=0 );
-  if( p->nRowid ) tdsqlite3DbFree(db, p->u.aRowid);
-  p->u.aRowid = tdsqlite3DbMallocRawNN(db, n);
-  if( p->u.aRowid ){
-    p->nRowid = n;
-    memcpy(p->u.aRowid, pData, n);
-  }else{
-    p->nRowid = 0;
-  }
-}
-#endif
-
-/* Initialize the INTEGER value of a ROWID.
-*/
-#ifdef SQLITE_ENABLE_STAT4
-static void sampleSetRowidInt64(tdsqlite3 *db, Stat4Sample *p, i64 iRowid){
-  assert( db!=0 );
-  if( p->nRowid ) tdsqlite3DbFree(db, p->u.aRowid);
-  p->nRowid = 0;
-  p->u.iRowid = iRowid;
-}
-#endif
-
-
-/*
-** Copy the contents of object (*pFrom) into (*pTo).
-*/
-#ifdef SQLITE_ENABLE_STAT4
-static void sampleCopy(Stat4Accum *p, Stat4Sample *pTo, Stat4Sample *pFrom){
-  pTo->isPSample = pFrom->isPSample;
-  pTo->iCol = pFrom->iCol;
-  pTo->iHash = pFrom->iHash;
-  memcpy(pTo->anEq, pFrom->anEq, sizeof(tRowcnt)*p->nCol);
-  memcpy(pTo->anLt, pFrom->anLt, sizeof(tRowcnt)*p->nCol);
-  memcpy(pTo->anDLt, pFrom->anDLt, sizeof(tRowcnt)*p->nCol);
-  if( pFrom->nRowid ){
-    sampleSetRowid(p->db, pTo, pFrom->nRowid, pFrom->u.aRowid);
-  }else{
-    sampleSetRowidInt64(p->db, pTo, pFrom->u.iRowid);
-  }
-}
-#endif
-
-/*
-** Reclaim all memory of a Stat4Accum structure.
-*/
-static void stat4Destructor(void *pOld){
-  Stat4Accum *p = (Stat4Accum*)pOld;
-#ifdef SQLITE_ENABLE_STAT4
-  int i;
-  for(i=0; i<p->nCol; i++) sampleClear(p->db, p->aBest+i);
-  for(i=0; i<p->mxSample; i++) sampleClear(p->db, p->a+i);
-  sampleClear(p->db, &p->current);
-#endif
-  tdsqlite3DbFree(p->db, p);
-}
-
-/*
-** Implementation of the stat_init(N,K,C) SQL function. The three parameters
-** are:
-**     N:    The number of columns in the index including the rowid/pk (note 1)
-**     K:    The number of columns in the index excluding the rowid/pk.
-**     C:    The number of rows in the index (note 2)
-**
-** Note 1:  In the special case of the covering index that implements a
-** WITHOUT ROWID table, N is the number of PRIMARY KEY columns, not the
-** total number of columns in the table.
-**
-** Note 2:  C is only used for STAT4.
-**
-** For indexes on ordinary rowid tables, N==K+1.  But for indexes on
-** WITHOUT ROWID tables, N=K+P where P is the number of columns in the
-** PRIMARY KEY of the table.  The covering index that implements the
-** original WITHOUT ROWID table as N==K as a special case.
-**
-** This routine allocates the Stat4Accum object in heap memory. The return 
-** value is a pointer to the Stat4Accum object.  The datatype of the
-** return value is BLOB, but it is really just a pointer to the Stat4Accum
-** object.
-*/
-static void statInit(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  Stat4Accum *p;
-  int nCol;                       /* Number of columns in index being sampled */
-  int nKeyCol;                    /* Number of key columns */
-  int nColUp;                     /* nCol rounded up for alignment */
-  int n;                          /* Bytes of space to allocate */
-  tdsqlite3 *db;                    /* Database connection */
-#ifdef SQLITE_ENABLE_STAT4
-  int mxSample = SQLITE_STAT4_SAMPLES;
-#endif
-
-  /* Decode the three function arguments */
-  UNUSED_PARAMETER(argc);
-  nCol = tdsqlite3_value_int(argv[0]);
-  assert( nCol>0 );
-  nColUp = sizeof(tRowcnt)<8 ? (nCol+1)&~1 : nCol;
-  nKeyCol = tdsqlite3_value_int(argv[1]);
-  assert( nKeyCol<=nCol );
-  assert( nKeyCol>0 );
-
-  /* Allocate the space required for the Stat4Accum object */
-  n = sizeof(*p) 
-    + sizeof(tRowcnt)*nColUp                  /* Stat4Accum.anEq */
-    + sizeof(tRowcnt)*nColUp                  /* Stat4Accum.anDLt */
-#ifdef SQLITE_ENABLE_STAT4
-    + sizeof(tRowcnt)*nColUp                  /* Stat4Accum.anLt */
-    + sizeof(Stat4Sample)*(nCol+mxSample)     /* Stat4Accum.aBest[], a[] */
-    + sizeof(tRowcnt)*3*nColUp*(nCol+mxSample)
-#endif
-  ;
-  db = tdsqlite3_context_db_handle(context);
-  p = tdsqlite3DbMallocZero(db, n);
-  if( p==0 ){
-    tdsqlite3_result_error_nomem(context);
-    return;
-  }
-
-  p->db = db;
-  p->nRow = 0;
-  p->nCol = nCol;
-  p->nKeyCol = nKeyCol;
-  p->current.anDLt = (tRowcnt*)&p[1];
-  p->current.anEq = &p->current.anDLt[nColUp];
-
-#ifdef SQLITE_ENABLE_STAT4
-  {
-    u8 *pSpace;                     /* Allocated space not yet assigned */
-    int i;                          /* Used to iterate through p->aSample[] */
-
-    p->iGet = -1;
-    p->mxSample = mxSample;
-    p->nPSample = (tRowcnt)(tdsqlite3_value_int64(argv[2])/(mxSample/3+1) + 1);
-    p->current.anLt = &p->current.anEq[nColUp];
-    p->iPrn = 0x689e962d*(u32)nCol ^ 0xd0944565*(u32)tdsqlite3_value_int(argv[2]);
-  
-    /* Set up the Stat4Accum.a[] and aBest[] arrays */
-    p->a = (struct Stat4Sample*)&p->current.anLt[nColUp];
-    p->aBest = &p->a[mxSample];
-    pSpace = (u8*)(&p->a[mxSample+nCol]);
-    for(i=0; i<(mxSample+nCol); i++){
-      p->a[i].anEq = (tRowcnt *)pSpace; pSpace += (sizeof(tRowcnt) * nColUp);
-      p->a[i].anLt = (tRowcnt *)pSpace; pSpace += (sizeof(tRowcnt) * nColUp);
-      p->a[i].anDLt = (tRowcnt *)pSpace; pSpace += (sizeof(tRowcnt) * nColUp);
-    }
-    assert( (pSpace - (u8*)p)==n );
-  
-    for(i=0; i<nCol; i++){
-      p->aBest[i].iCol = i;
-    }
-  }
-#endif
-
-  /* Return a pointer to the allocated object to the caller.  Note that
-  ** only the pointer (the 2nd parameter) matters.  The size of the object
-  ** (given by the 3rd parameter) is never used and can be any positive
-  ** value. */
-  tdsqlite3_result_blob(context, p, sizeof(*p), stat4Destructor);
-}
-static const FuncDef statInitFuncdef = {
-  2+IsStat4,       /* nArg */
-  SQLITE_UTF8,     /* funcFlags */
-  0,               /* pUserData */
-  0,               /* pNext */
-  statInit,        /* xSFunc */
-  0,               /* xFinalize */
-  0, 0,            /* xValue, xInverse */
-  "stat_init",     /* zName */
-  {0}
-};
-
-#ifdef SQLITE_ENABLE_STAT4
-/*
-** pNew and pOld are both candidate non-periodic samples selected for 
-** the same column (pNew->iCol==pOld->iCol). Ignoring this column and 
-** considering only any trailing columns and the sample hash value, this
-** function returns true if sample pNew is to be preferred over pOld.
-** In other words, if we assume that the cardinalities of the selected
-** column for pNew and pOld are equal, is pNew to be preferred over pOld.
-**
-** This function assumes that for each argument sample, the contents of
-** the anEq[] array from pSample->anEq[pSample->iCol+1] onwards are valid. 
-*/
-static int sampleIsBetterPost(
-  Stat4Accum *pAccum, 
-  Stat4Sample *pNew, 
-  Stat4Sample *pOld
-){
-  int nCol = pAccum->nCol;
-  int i;
-  assert( pNew->iCol==pOld->iCol );
-  for(i=pNew->iCol+1; i<nCol; i++){
-    if( pNew->anEq[i]>pOld->anEq[i] ) return 1;
-    if( pNew->anEq[i]<pOld->anEq[i] ) return 0;
-  }
-  if( pNew->iHash>pOld->iHash ) return 1;
-  return 0;
-}
-#endif
-
-#ifdef SQLITE_ENABLE_STAT4
-/*
-** Return true if pNew is to be preferred over pOld.
-**
-** This function assumes that for each argument sample, the contents of
-** the anEq[] array from pSample->anEq[pSample->iCol] onwards are valid. 
-*/
-static int sampleIsBetter(
-  Stat4Accum *pAccum, 
-  Stat4Sample *pNew, 
-  Stat4Sample *pOld
-){
-  tRowcnt nEqNew = pNew->anEq[pNew->iCol];
-  tRowcnt nEqOld = pOld->anEq[pOld->iCol];
-
-  assert( pOld->isPSample==0 && pNew->isPSample==0 );
-  assert( IsStat4 || (pNew->iCol==0 && pOld->iCol==0) );
-
-  if( (nEqNew>nEqOld) ) return 1;
-  if( nEqNew==nEqOld ){
-    if( pNew->iCol<pOld->iCol ) return 1;
-    return (pNew->iCol==pOld->iCol && sampleIsBetterPost(pAccum, pNew, pOld));
-  }
-  return 0;
-}
-
-/*
-** Copy the contents of sample *pNew into the p->a[] array. If necessary,
-** remove the least desirable sample from p->a[] to make room.
-*/
-static void sampleInsert(Stat4Accum *p, Stat4Sample *pNew, int nEqZero){
-  Stat4Sample *pSample = 0;
-  int i;
-
-  assert( IsStat4 || nEqZero==0 );
-
-  /* Stat4Accum.nMaxEqZero is set to the maximum number of leading 0
-  ** values in the anEq[] array of any sample in Stat4Accum.a[]. In
-  ** other words, if nMaxEqZero is n, then it is guaranteed that there
-  ** are no samples with Stat4Sample.anEq[m]==0 for (m>=n). */
-  if( nEqZero>p->nMaxEqZero ){
-    p->nMaxEqZero = nEqZero;
-  }
-  if( pNew->isPSample==0 ){
-    Stat4Sample *pUpgrade = 0;
-    assert( pNew->anEq[pNew->iCol]>0 );
-
-    /* This sample is being added because the prefix that ends in column 
-    ** iCol occurs many times in the table. However, if we have already
-    ** added a sample that shares this prefix, there is no need to add
-    ** this one. Instead, upgrade the priority of the highest priority
-    ** existing sample that shares this prefix.  */
-    for(i=p->nSample-1; i>=0; i--){
-      Stat4Sample *pOld = &p->a[i];
-      if( pOld->anEq[pNew->iCol]==0 ){
-        if( pOld->isPSample ) return;
-        assert( pOld->iCol>pNew->iCol );
-        assert( sampleIsBetter(p, pNew, pOld) );
-        if( pUpgrade==0 || sampleIsBetter(p, pOld, pUpgrade) ){
-          pUpgrade = pOld;
-        }
-      }
-    }
-    if( pUpgrade ){
-      pUpgrade->iCol = pNew->iCol;
-      pUpgrade->anEq[pUpgrade->iCol] = pNew->anEq[pUpgrade->iCol];
-      goto find_new_min;
-    }
-  }
-
-  /* If necessary, remove sample iMin to make room for the new sample. */
-  if( p->nSample>=p->mxSample ){
-    Stat4Sample *pMin = &p->a[p->iMin];
-    tRowcnt *anEq = pMin->anEq;
-    tRowcnt *anLt = pMin->anLt;
-    tRowcnt *anDLt = pMin->anDLt;
-    sampleClear(p->db, pMin);
-    memmove(pMin, &pMin[1], sizeof(p->a[0])*(p->nSample-p->iMin-1));
-    pSample = &p->a[p->nSample-1];
-    pSample->nRowid = 0;
-    pSample->anEq = anEq;
-    pSample->anDLt = anDLt;
-    pSample->anLt = anLt;
-    p->nSample = p->mxSample-1;
-  }
-
-  /* The "rows less-than" for the rowid column must be greater than that
-  ** for the last sample in the p->a[] array. Otherwise, the samples would
-  ** be out of order. */
-  assert( p->nSample==0 
-       || pNew->anLt[p->nCol-1] > p->a[p->nSample-1].anLt[p->nCol-1] );
-
-  /* Insert the new sample */
-  pSample = &p->a[p->nSample];
-  sampleCopy(p, pSample, pNew);
-  p->nSample++;
-
-  /* Zero the first nEqZero entries in the anEq[] array. */
-  memset(pSample->anEq, 0, sizeof(tRowcnt)*nEqZero);
-
-find_new_min:
-  if( p->nSample>=p->mxSample ){
-    int iMin = -1;
-    for(i=0; i<p->mxSample; i++){
-      if( p->a[i].isPSample ) continue;
-      if( iMin<0 || sampleIsBetter(p, &p->a[iMin], &p->a[i]) ){
-        iMin = i;
-      }
-    }
-    assert( iMin>=0 );
-    p->iMin = iMin;
-  }
-}
-#endif /* SQLITE_ENABLE_STAT4 */
-
-/*
-** Field iChng of the index being scanned has changed. So at this point
-** p->current contains a sample that reflects the previous row of the
-** index. The value of anEq[iChng] and subsequent anEq[] elements are
-** correct at this point.
-*/
-static void samplePushPrevious(Stat4Accum *p, int iChng){
-#ifdef SQLITE_ENABLE_STAT4
-  int i;
-
-  /* Check if any samples from the aBest[] array should be pushed
-  ** into IndexSample.a[] at this point.  */
-  for(i=(p->nCol-2); i>=iChng; i--){
-    Stat4Sample *pBest = &p->aBest[i];
-    pBest->anEq[i] = p->current.anEq[i];
-    if( p->nSample<p->mxSample || sampleIsBetter(p, pBest, &p->a[p->iMin]) ){
-      sampleInsert(p, pBest, i);
-    }
-  }
-
-  /* Check that no sample contains an anEq[] entry with an index of
-  ** p->nMaxEqZero or greater set to zero. */
-  for(i=p->nSample-1; i>=0; i--){
-    int j;
-    for(j=p->nMaxEqZero; j<p->nCol; j++) assert( p->a[i].anEq[j]>0 );
-  }
-
-  /* Update the anEq[] fields of any samples already collected. */
-  if( iChng<p->nMaxEqZero ){
-    for(i=p->nSample-1; i>=0; i--){
-      int j;
-      for(j=iChng; j<p->nCol; j++){
-        if( p->a[i].anEq[j]==0 ) p->a[i].anEq[j] = p->current.anEq[j];
-      }
-    }
-    p->nMaxEqZero = iChng;
-  }
-#endif
-
-#ifndef SQLITE_ENABLE_STAT4
-  UNUSED_PARAMETER( p );
-  UNUSED_PARAMETER( iChng );
-#endif
-}
-
-/*
-** Implementation of the stat_push SQL function:  stat_push(P,C,R)
-** Arguments:
-**
-**    P     Pointer to the Stat4Accum object created by stat_init()
-**    C     Index of left-most column to differ from previous row
-**    R     Rowid for the current row.  Might be a key record for
-**          WITHOUT ROWID tables.
-**
-** This SQL function always returns NULL.  It's purpose it to accumulate
-** statistical data and/or samples in the Stat4Accum object about the
-** index being analyzed.  The stat_get() SQL function will later be used to
-** extract relevant information for constructing the sqlite_statN tables.
-**
-** The R parameter is only used for STAT4
-*/
-static void statPush(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  int i;
-
-  /* The three function arguments */
-  Stat4Accum *p = (Stat4Accum*)tdsqlite3_value_blob(argv[0]);
-  int iChng = tdsqlite3_value_int(argv[1]);
-
-  UNUSED_PARAMETER( argc );
-  UNUSED_PARAMETER( context );
-  assert( p->nCol>0 );
-  assert( iChng<p->nCol );
-
-  if( p->nRow==0 ){
-    /* This is the first call to this function. Do initialization. */
-    for(i=0; i<p->nCol; i++) p->current.anEq[i] = 1;
-  }else{
-    /* Second and subsequent calls get processed here */
-    samplePushPrevious(p, iChng);
-
-    /* Update anDLt[], anLt[] and anEq[] to reflect the values that apply
-    ** to the current row of the index. */
-    for(i=0; i<iChng; i++){
-      p->current.anEq[i]++;
-    }
-    for(i=iChng; i<p->nCol; i++){
-      p->current.anDLt[i]++;
-#ifdef SQLITE_ENABLE_STAT4
-      p->current.anLt[i] += p->current.anEq[i];
-#endif
-      p->current.anEq[i] = 1;
-    }
-  }
-  p->nRow++;
-#ifdef SQLITE_ENABLE_STAT4
-  if( tdsqlite3_value_type(argv[2])==SQLITE_INTEGER ){
-    sampleSetRowidInt64(p->db, &p->current, tdsqlite3_value_int64(argv[2]));
-  }else{
-    sampleSetRowid(p->db, &p->current, tdsqlite3_value_bytes(argv[2]),
-                                       tdsqlite3_value_blob(argv[2]));
-  }
-  p->current.iHash = p->iPrn = p->iPrn*1103515245 + 12345;
-#endif
-
-#ifdef SQLITE_ENABLE_STAT4
-  {
-    tRowcnt nLt = p->current.anLt[p->nCol-1];
-
-    /* Check if this is to be a periodic sample. If so, add it. */
-    if( (nLt/p->nPSample)!=(nLt+1)/p->nPSample ){
-      p->current.isPSample = 1;
-      p->current.iCol = 0;
-      sampleInsert(p, &p->current, p->nCol-1);
-      p->current.isPSample = 0;
-    }
-
-    /* Update the aBest[] array. */
-    for(i=0; i<(p->nCol-1); i++){
-      p->current.iCol = i;
-      if( i>=iChng || sampleIsBetterPost(p, &p->current, &p->aBest[i]) ){
-        sampleCopy(p, &p->aBest[i], &p->current);
-      }
-    }
-  }
-#endif
-}
-static const FuncDef statPushFuncdef = {
-  2+IsStat4,       /* nArg */
-  SQLITE_UTF8,     /* funcFlags */
-  0,               /* pUserData */
-  0,               /* pNext */
-  statPush,        /* xSFunc */
-  0,               /* xFinalize */
-  0, 0,            /* xValue, xInverse */
-  "stat_push",     /* zName */
-  {0}
-};
-
-#define STAT_GET_STAT1 0          /* "stat" column of stat1 table */
-#define STAT_GET_ROWID 1          /* "rowid" column of stat[34] entry */
-#define STAT_GET_NEQ   2          /* "neq" column of stat[34] entry */
-#define STAT_GET_NLT   3          /* "nlt" column of stat[34] entry */
-#define STAT_GET_NDLT  4          /* "ndlt" column of stat[34] entry */
-
-/*
-** Implementation of the stat_get(P,J) SQL function.  This routine is
-** used to query statistical information that has been gathered into
-** the Stat4Accum object by prior calls to stat_push().  The P parameter
-** has type BLOB but it is really just a pointer to the Stat4Accum object.
-** The content to returned is determined by the parameter J
-** which is one of the STAT_GET_xxxx values defined above.
-**
-** The stat_get(P,J) function is not available to generic SQL.  It is
-** inserted as part of a manually constructed bytecode program.  (See
-** the callStatGet() routine below.)  It is guaranteed that the P
-** parameter will always be a poiner to a Stat4Accum object, never a
-** NULL.
-**
-** If STAT4 is not enabled, then J is always
-** STAT_GET_STAT1 and is hence omitted and this routine becomes
-** a one-parameter function, stat_get(P), that always returns the
-** stat1 table entry information.
-*/
-static void statGet(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  Stat4Accum *p = (Stat4Accum*)tdsqlite3_value_blob(argv[0]);
-#ifdef SQLITE_ENABLE_STAT4
-  /* STAT4 has a parameter on this routine. */
-  int eCall = tdsqlite3_value_int(argv[1]);
-  assert( argc==2 );
-  assert( eCall==STAT_GET_STAT1 || eCall==STAT_GET_NEQ 
-       || eCall==STAT_GET_ROWID || eCall==STAT_GET_NLT
-       || eCall==STAT_GET_NDLT 
-  );
-  if( eCall==STAT_GET_STAT1 )
-#else
-  assert( argc==1 );
-#endif
-  {
-    /* Return the value to store in the "stat" column of the sqlite_stat1
-    ** table for this index.
-    **
-    ** The value is a string composed of a list of integers describing 
-    ** the index. The first integer in the list is the total number of 
-    ** entries in the index. There is one additional integer in the list 
-    ** for each indexed column. This additional integer is an estimate of
-    ** the number of rows matched by a stabbing query on the index using
-    ** a key with the corresponding number of fields. In other words,
-    ** if the index is on columns (a,b) and the sqlite_stat1 value is 
-    ** "100 10 2", then SQLite estimates that:
-    **
-    **   * the index contains 100 rows,
-    **   * "WHERE a=?" matches 10 rows, and
-    **   * "WHERE a=? AND b=?" matches 2 rows.
-    **
-    ** If D is the count of distinct values and K is the total number of 
-    ** rows, then each estimate is computed as:
-    **
-    **        I = (K+D-1)/D
-    */
-    char *z;
-    int i;
-
-    char *zRet = tdsqlite3MallocZero( (p->nKeyCol+1)*25 );
-    if( zRet==0 ){
-      tdsqlite3_result_error_nomem(context);
-      return;
-    }
-
-    tdsqlite3_snprintf(24, zRet, "%llu", (u64)p->nRow);
-    z = zRet + tdsqlite3Strlen30(zRet);
-    for(i=0; i<p->nKeyCol; i++){
-      u64 nDistinct = p->current.anDLt[i] + 1;
-      u64 iVal = (p->nRow + nDistinct - 1) / nDistinct;
-      tdsqlite3_snprintf(24, z, " %llu", iVal);
-      z += tdsqlite3Strlen30(z);
-      assert( p->current.anEq[i] );
-    }
-    assert( z[0]=='\0' && z>zRet );
-
-    tdsqlite3_result_text(context, zRet, -1, tdsqlite3_free);
-  }
-#ifdef SQLITE_ENABLE_STAT4
-  else if( eCall==STAT_GET_ROWID ){
-    if( p->iGet<0 ){
-      samplePushPrevious(p, 0);
-      p->iGet = 0;
-    }
-    if( p->iGet<p->nSample ){
-      Stat4Sample *pS = p->a + p->iGet;
-      if( pS->nRowid==0 ){
-        tdsqlite3_result_int64(context, pS->u.iRowid);
-      }else{
-        tdsqlite3_result_blob(context, pS->u.aRowid, pS->nRowid,
-                            SQLITE_TRANSIENT);
-      }
-    }
-  }else{
-    tRowcnt *aCnt = 0;
-
-    assert( p->iGet<p->nSample );
-    switch( eCall ){
-      case STAT_GET_NEQ:  aCnt = p->a[p->iGet].anEq; break;
-      case STAT_GET_NLT:  aCnt = p->a[p->iGet].anLt; break;
-      default: {
-        aCnt = p->a[p->iGet].anDLt; 
-        p->iGet++;
-        break;
-      }
-    }
-
-    {
-      char *zRet = tdsqlite3MallocZero(p->nCol * 25);
-      if( zRet==0 ){
-        tdsqlite3_result_error_nomem(context);
-      }else{
-        int i;
-        char *z = zRet;
-        for(i=0; i<p->nCol; i++){
-          tdsqlite3_snprintf(24, z, "%llu ", (u64)aCnt[i]);
-          z += tdsqlite3Strlen30(z);
-        }
-        assert( z[0]=='\0' && z>zRet );
-        z[-1] = '\0';
-        tdsqlite3_result_text(context, zRet, -1, tdsqlite3_free);
-      }
-    }
-  }
-#endif /* SQLITE_ENABLE_STAT4 */
-#ifndef SQLITE_DEBUG
-  UNUSED_PARAMETER( argc );
-#endif
-}
-static const FuncDef statGetFuncdef = {
-  1+IsStat4,       /* nArg */
-  SQLITE_UTF8,     /* funcFlags */
-  0,               /* pUserData */
-  0,               /* pNext */
-  statGet,         /* xSFunc */
-  0,               /* xFinalize */
-  0, 0,            /* xValue, xInverse */
-  "stat_get",      /* zName */
-  {0}
-};
-
-static void callStatGet(Parse *pParse, int regStat4, int iParam, int regOut){
-#ifdef SQLITE_ENABLE_STAT4
-  tdsqlite3VdbeAddOp2(pParse->pVdbe, OP_Integer, iParam, regStat4+1);
-#elif SQLITE_DEBUG
-  assert( iParam==STAT_GET_STAT1 );
-#else
-  UNUSED_PARAMETER( iParam );
-#endif
-  assert( regOut!=regStat4 && regOut!=regStat4+1 );
-  tdsqlite3VdbeAddFunctionCall(pParse, 0, regStat4, regOut, 1+IsStat4,
-                             &statGetFuncdef, 0);
-}
-
-/*
-** Generate code to do an analysis of all indices associated with
-** a single table.
-*/
-static void analyzeOneTable(
-  Parse *pParse,   /* Parser context */
-  Table *pTab,     /* Table whose indices are to be analyzed */
-  Index *pOnlyIdx, /* If not NULL, only analyze this one index */
-  int iStatCur,    /* Index of VdbeCursor that writes the sqlite_stat1 table */
-  int iMem,        /* Available memory locations begin here */
-  int iTab         /* Next available cursor */
-){
-  tdsqlite3 *db = pParse->db;    /* Database handle */
-  Index *pIdx;                 /* An index to being analyzed */
-  int iIdxCur;                 /* Cursor open on index being analyzed */
-  int iTabCur;                 /* Table cursor */
-  Vdbe *v;                     /* The virtual machine being built up */
-  int i;                       /* Loop counter */
-  int jZeroRows = -1;          /* Jump from here if number of rows is zero */
-  int iDb;                     /* Index of database containing pTab */
-  u8 needTableCnt = 1;         /* True to count the table */
-  int regNewRowid = iMem++;    /* Rowid for the inserted record */
-  int regStat4 = iMem++;       /* Register to hold Stat4Accum object */
-  int regChng = iMem++;        /* Index of changed index field */
-#ifdef SQLITE_ENABLE_STAT4
-  int regRowid = iMem++;       /* Rowid argument passed to stat_push() */
-#endif
-  int regTemp = iMem++;        /* Temporary use register */
-  int regTabname = iMem++;     /* Register containing table name */
-  int regIdxname = iMem++;     /* Register containing index name */
-  int regStat1 = iMem++;       /* Value for the stat column of sqlite_stat1 */
-  int regPrev = iMem;          /* MUST BE LAST (see below) */
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-  Table *pStat1 = 0; 
-#endif
-
-  pParse->nMem = MAX(pParse->nMem, iMem);
-  v = tdsqlite3GetVdbe(pParse);
-  if( v==0 || NEVER(pTab==0) ){
-    return;
-  }
-  if( pTab->tnum==0 ){
-    /* Do not gather statistics on views or virtual tables */
-    return;
-  }
-  if( tdsqlite3_strlike("sqlite\\_%", pTab->zName, '\\')==0 ){
-    /* Do not gather statistics on system tables */
-    return;
-  }
-  assert( tdsqlite3BtreeHoldsAllMutexes(db) );
-  iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-  assert( iDb>=0 );
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  if( tdsqlite3AuthCheck(pParse, SQLITE_ANALYZE, pTab->zName, 0,
-      db->aDb[iDb].zDbSName ) ){
-    return;
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-  if( db->xPreUpdateCallback ){
-    pStat1 = (Table*)tdsqlite3DbMallocZero(db, sizeof(Table) + 13);
-    if( pStat1==0 ) return;
-    pStat1->zName = (char*)&pStat1[1];
-    memcpy(pStat1->zName, "sqlite_stat1", 13);
-    pStat1->nCol = 3;
-    pStat1->iPKey = -1;
-    tdsqlite3VdbeAddOp4(pParse->pVdbe, OP_Noop, 0, 0, 0,(char*)pStat1,P4_DYNBLOB);
-  }
-#endif
-
-  /* Establish a read-lock on the table at the shared-cache level. 
-  ** Open a read-only cursor on the table. Also allocate a cursor number
-  ** to use for scanning indexes (iIdxCur). No index cursor is opened at
-  ** this time though.  */
-  tdsqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
-  iTabCur = iTab++;
-  iIdxCur = iTab++;
-  pParse->nTab = MAX(pParse->nTab, iTab);
-  tdsqlite3OpenTable(pParse, iTabCur, iDb, pTab, OP_OpenRead);
-  tdsqlite3VdbeLoadString(v, regTabname, pTab->zName);
-
-  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-    int nCol;                     /* Number of columns in pIdx. "N" */
-    int addrRewind;               /* Address of "OP_Rewind iIdxCur" */
-    int addrNextRow;              /* Address of "next_row:" */
-    const char *zIdxName;         /* Name of the index */
-    int nColTest;                 /* Number of columns to test for changes */
-
-    if( pOnlyIdx && pOnlyIdx!=pIdx ) continue;
-    if( pIdx->pPartIdxWhere==0 ) needTableCnt = 0;
-    if( !HasRowid(pTab) && IsPrimaryKeyIndex(pIdx) ){
-      nCol = pIdx->nKeyCol;
-      zIdxName = pTab->zName;
-      nColTest = nCol - 1;
-    }else{
-      nCol = pIdx->nColumn;
-      zIdxName = pIdx->zName;
-      nColTest = pIdx->uniqNotNull ? pIdx->nKeyCol-1 : nCol-1;
-    }
-
-    /* Populate the register containing the index name. */
-    tdsqlite3VdbeLoadString(v, regIdxname, zIdxName);
-    VdbeComment((v, "Analysis for %s.%s", pTab->zName, zIdxName));
-
-    /*
-    ** Pseudo-code for loop that calls stat_push():
-    **
-    **   Rewind csr
-    **   if eof(csr) goto end_of_scan;
-    **   regChng = 0
-    **   goto chng_addr_0;
-    **
-    **  next_row:
-    **   regChng = 0
-    **   if( idx(0) != regPrev(0) ) goto chng_addr_0
-    **   regChng = 1
-    **   if( idx(1) != regPrev(1) ) goto chng_addr_1
-    **   ...
-    **   regChng = N
-    **   goto chng_addr_N
-    **
-    **  chng_addr_0:
-    **   regPrev(0) = idx(0)
-    **  chng_addr_1:
-    **   regPrev(1) = idx(1)
-    **  ...
-    **
-    **  endDistinctTest:
-    **   regRowid = idx(rowid)
-    **   stat_push(P, regChng, regRowid)
-    **   Next csr
-    **   if !eof(csr) goto next_row;
-    **
-    **  end_of_scan:
-    */
-
-    /* Make sure there are enough memory cells allocated to accommodate 
-    ** the regPrev array and a trailing rowid (the rowid slot is required
-    ** when building a record to insert into the sample column of 
-    ** the sqlite_stat4 table.  */
-    pParse->nMem = MAX(pParse->nMem, regPrev+nColTest);
-
-    /* Open a read-only cursor on the index being analyzed. */
-    assert( iDb==tdsqlite3SchemaToIndex(db, pIdx->pSchema) );
-    tdsqlite3VdbeAddOp3(v, OP_OpenRead, iIdxCur, pIdx->tnum, iDb);
-    tdsqlite3VdbeSetP4KeyInfo(pParse, pIdx);
-    VdbeComment((v, "%s", pIdx->zName));
-
-    /* Invoke the stat_init() function. The arguments are:
-    ** 
-    **    (1) the number of columns in the index including the rowid
-    **        (or for a WITHOUT ROWID table, the number of PK columns),
-    **    (2) the number of columns in the key without the rowid/pk
-    **    (3) the number of rows in the index,
-    **
-    **
-    ** The third argument is only used for STAT4
-    */
-#ifdef SQLITE_ENABLE_STAT4
-    tdsqlite3VdbeAddOp2(v, OP_Count, iIdxCur, regStat4+3);
-#endif
-    tdsqlite3VdbeAddOp2(v, OP_Integer, nCol, regStat4+1);
-    tdsqlite3VdbeAddOp2(v, OP_Integer, pIdx->nKeyCol, regStat4+2);
-    tdsqlite3VdbeAddFunctionCall(pParse, 0, regStat4+1, regStat4, 2+IsStat4,
-                               &statInitFuncdef, 0);
-
-    /* Implementation of the following:
-    **
-    **   Rewind csr
-    **   if eof(csr) goto end_of_scan;
-    **   regChng = 0
-    **   goto next_push_0;
-    **
-    */
-    addrRewind = tdsqlite3VdbeAddOp1(v, OP_Rewind, iIdxCur);
-    VdbeCoverage(v);
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regChng);
-    addrNextRow = tdsqlite3VdbeCurrentAddr(v);
-
-    if( nColTest>0 ){
-      int endDistinctTest = tdsqlite3VdbeMakeLabel(pParse);
-      int *aGotoChng;               /* Array of jump instruction addresses */
-      aGotoChng = tdsqlite3DbMallocRawNN(db, sizeof(int)*nColTest);
-      if( aGotoChng==0 ) continue;
-
-      /*
-      **  next_row:
-      **   regChng = 0
-      **   if( idx(0) != regPrev(0) ) goto chng_addr_0
-      **   regChng = 1
-      **   if( idx(1) != regPrev(1) ) goto chng_addr_1
-      **   ...
-      **   regChng = N
-      **   goto endDistinctTest
-      */
-      tdsqlite3VdbeAddOp0(v, OP_Goto);
-      addrNextRow = tdsqlite3VdbeCurrentAddr(v);
-      if( nColTest==1 && pIdx->nKeyCol==1 && IsUniqueIndex(pIdx) ){
-        /* For a single-column UNIQUE index, once we have found a non-NULL
-        ** row, we know that all the rest will be distinct, so skip 
-        ** subsequent distinctness tests. */
-        tdsqlite3VdbeAddOp2(v, OP_NotNull, regPrev, endDistinctTest);
-        VdbeCoverage(v);
-      }
-      for(i=0; i<nColTest; i++){
-        char *pColl = (char*)tdsqlite3LocateCollSeq(pParse, pIdx->azColl[i]);
-        tdsqlite3VdbeAddOp2(v, OP_Integer, i, regChng);
-        tdsqlite3VdbeAddOp3(v, OP_Column, iIdxCur, i, regTemp);
-        aGotoChng[i] = 
-        tdsqlite3VdbeAddOp4(v, OP_Ne, regTemp, 0, regPrev+i, pColl, P4_COLLSEQ);
-        tdsqlite3VdbeChangeP5(v, SQLITE_NULLEQ);
-        VdbeCoverage(v);
-      }
-      tdsqlite3VdbeAddOp2(v, OP_Integer, nColTest, regChng);
-      tdsqlite3VdbeGoto(v, endDistinctTest);
-  
-  
-      /*
-      **  chng_addr_0:
-      **   regPrev(0) = idx(0)
-      **  chng_addr_1:
-      **   regPrev(1) = idx(1)
-      **  ...
-      */
-      tdsqlite3VdbeJumpHere(v, addrNextRow-1);
-      for(i=0; i<nColTest; i++){
-        tdsqlite3VdbeJumpHere(v, aGotoChng[i]);
-        tdsqlite3VdbeAddOp3(v, OP_Column, iIdxCur, i, regPrev+i);
-      }
-      tdsqlite3VdbeResolveLabel(v, endDistinctTest);
-      tdsqlite3DbFree(db, aGotoChng);
-    }
-  
-    /*
-    **  chng_addr_N:
-    **   regRowid = idx(rowid)            // STAT4 only
-    **   stat_push(P, regChng, regRowid)  // 3rd parameter STAT4 only
-    **   Next csr
-    **   if !eof(csr) goto next_row;
-    */
-#ifdef SQLITE_ENABLE_STAT4
-    assert( regRowid==(regStat4+2) );
-    if( HasRowid(pTab) ){
-      tdsqlite3VdbeAddOp2(v, OP_IdxRowid, iIdxCur, regRowid);
-    }else{
-      Index *pPk = tdsqlite3PrimaryKeyIndex(pIdx->pTable);
-      int j, k, regKey;
-      regKey = tdsqlite3GetTempRange(pParse, pPk->nKeyCol);
-      for(j=0; j<pPk->nKeyCol; j++){
-        k = tdsqlite3TableColumnToIndex(pIdx, pPk->aiColumn[j]);
-        assert( k>=0 && k<pIdx->nColumn );
-        tdsqlite3VdbeAddOp3(v, OP_Column, iIdxCur, k, regKey+j);
-        VdbeComment((v, "%s", pTab->aCol[pPk->aiColumn[j]].zName));
-      }
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regKey, pPk->nKeyCol, regRowid);
-      tdsqlite3ReleaseTempRange(pParse, regKey, pPk->nKeyCol);
-    }
-#endif
-    assert( regChng==(regStat4+1) );
-    tdsqlite3VdbeAddFunctionCall(pParse, 1, regStat4, regTemp, 2+IsStat4,
-                               &statPushFuncdef, 0);
-    tdsqlite3VdbeAddOp2(v, OP_Next, iIdxCur, addrNextRow); VdbeCoverage(v);
-
-    /* Add the entry to the stat1 table. */
-    callStatGet(pParse, regStat4, STAT_GET_STAT1, regStat1);
-    assert( "BBB"[0]==SQLITE_AFF_TEXT );
-    tdsqlite3VdbeAddOp4(v, OP_MakeRecord, regTabname, 3, regTemp, "BBB", 0);
-    tdsqlite3VdbeAddOp2(v, OP_NewRowid, iStatCur, regNewRowid);
-    tdsqlite3VdbeAddOp3(v, OP_Insert, iStatCur, regTemp, regNewRowid);
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-    tdsqlite3VdbeChangeP4(v, -1, (char*)pStat1, P4_TABLE);
-#endif
-    tdsqlite3VdbeChangeP5(v, OPFLAG_APPEND);
-
-    /* Add the entries to the stat4 table. */
-#ifdef SQLITE_ENABLE_STAT4
-    {
-      int regEq = regStat1;
-      int regLt = regStat1+1;
-      int regDLt = regStat1+2;
-      int regSample = regStat1+3;
-      int regCol = regStat1+4;
-      int regSampleRowid = regCol + nCol;
-      int addrNext;
-      int addrIsNull;
-      u8 seekOp = HasRowid(pTab) ? OP_NotExists : OP_NotFound;
-
-      pParse->nMem = MAX(pParse->nMem, regCol+nCol);
-
-      addrNext = tdsqlite3VdbeCurrentAddr(v);
-      callStatGet(pParse, regStat4, STAT_GET_ROWID, regSampleRowid);
-      addrIsNull = tdsqlite3VdbeAddOp1(v, OP_IsNull, regSampleRowid);
-      VdbeCoverage(v);
-      callStatGet(pParse, regStat4, STAT_GET_NEQ, regEq);
-      callStatGet(pParse, regStat4, STAT_GET_NLT, regLt);
-      callStatGet(pParse, regStat4, STAT_GET_NDLT, regDLt);
-      tdsqlite3VdbeAddOp4Int(v, seekOp, iTabCur, addrNext, regSampleRowid, 0);
-      VdbeCoverage(v);
-      for(i=0; i<nCol; i++){
-        tdsqlite3ExprCodeLoadIndexColumn(pParse, pIdx, iTabCur, i, regCol+i);
-      }
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regCol, nCol, regSample);
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regTabname, 6, regTemp);
-      tdsqlite3VdbeAddOp2(v, OP_NewRowid, iStatCur+1, regNewRowid);
-      tdsqlite3VdbeAddOp3(v, OP_Insert, iStatCur+1, regTemp, regNewRowid);
-      tdsqlite3VdbeAddOp2(v, OP_Goto, 1, addrNext); /* P1==1 for end-of-loop */
-      tdsqlite3VdbeJumpHere(v, addrIsNull);
-    }
-#endif /* SQLITE_ENABLE_STAT4 */
-
-    /* End of analysis */
-    tdsqlite3VdbeJumpHere(v, addrRewind);
-  }
-
-
-  /* Create a single sqlite_stat1 entry containing NULL as the index
-  ** name and the row count as the content.
-  */
-  if( pOnlyIdx==0 && needTableCnt ){
-    VdbeComment((v, "%s", pTab->zName));
-    tdsqlite3VdbeAddOp2(v, OP_Count, iTabCur, regStat1);
-    jZeroRows = tdsqlite3VdbeAddOp1(v, OP_IfNot, regStat1); VdbeCoverage(v);
-    tdsqlite3VdbeAddOp2(v, OP_Null, 0, regIdxname);
-    assert( "BBB"[0]==SQLITE_AFF_TEXT );
-    tdsqlite3VdbeAddOp4(v, OP_MakeRecord, regTabname, 3, regTemp, "BBB", 0);
-    tdsqlite3VdbeAddOp2(v, OP_NewRowid, iStatCur, regNewRowid);
-    tdsqlite3VdbeAddOp3(v, OP_Insert, iStatCur, regTemp, regNewRowid);
-    tdsqlite3VdbeChangeP5(v, OPFLAG_APPEND);
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-    tdsqlite3VdbeChangeP4(v, -1, (char*)pStat1, P4_TABLE);
-#endif
-    tdsqlite3VdbeJumpHere(v, jZeroRows);
-  }
-}
-
-
-/*
-** Generate code that will cause the most recent index analysis to
-** be loaded into internal hash tables where is can be used.
-*/
-static void loadAnalysis(Parse *pParse, int iDb){
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  if( v ){
-    tdsqlite3VdbeAddOp1(v, OP_LoadAnalysis, iDb);
-  }
-}
-
-/*
-** Generate code that will do an analysis of an entire database
-*/
-static void analyzeDatabase(Parse *pParse, int iDb){
-  tdsqlite3 *db = pParse->db;
-  Schema *pSchema = db->aDb[iDb].pSchema;    /* Schema of database iDb */
-  HashElem *k;
-  int iStatCur;
-  int iMem;
-  int iTab;
-
-  tdsqlite3BeginWriteOperation(pParse, 0, iDb);
-  iStatCur = pParse->nTab;
-  pParse->nTab += 3;
-  openStatTable(pParse, iDb, iStatCur, 0, 0);
-  iMem = pParse->nMem+1;
-  iTab = pParse->nTab;
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  for(k=sqliteHashFirst(&pSchema->tblHash); k; k=sqliteHashNext(k)){
-    Table *pTab = (Table*)sqliteHashData(k);
-    analyzeOneTable(pParse, pTab, 0, iStatCur, iMem, iTab);
-  }
-  loadAnalysis(pParse, iDb);
-}
-
-/*
-** Generate code that will do an analysis of a single table in
-** a database.  If pOnlyIdx is not NULL then it is a single index
-** in pTab that should be analyzed.
-*/
-static void analyzeTable(Parse *pParse, Table *pTab, Index *pOnlyIdx){
-  int iDb;
-  int iStatCur;
-
-  assert( pTab!=0 );
-  assert( tdsqlite3BtreeHoldsAllMutexes(pParse->db) );
-  iDb = tdsqlite3SchemaToIndex(pParse->db, pTab->pSchema);
-  tdsqlite3BeginWriteOperation(pParse, 0, iDb);
-  iStatCur = pParse->nTab;
-  pParse->nTab += 3;
-  if( pOnlyIdx ){
-    openStatTable(pParse, iDb, iStatCur, pOnlyIdx->zName, "idx");
-  }else{
-    openStatTable(pParse, iDb, iStatCur, pTab->zName, "tbl");
-  }
-  analyzeOneTable(pParse, pTab, pOnlyIdx, iStatCur,pParse->nMem+1,pParse->nTab);
-  loadAnalysis(pParse, iDb);
-}
-
-/*
-** Generate code for the ANALYZE command.  The parser calls this routine
-** when it recognizes an ANALYZE command.
-**
-**        ANALYZE                            -- 1
-**        ANALYZE  <database>                -- 2
-**        ANALYZE  ?<database>.?<tablename>  -- 3
-**
-** Form 1 causes all indices in all attached databases to be analyzed.
-** Form 2 analyzes all indices the single database named.
-** Form 3 analyzes all indices associated with the named table.
-*/
-SQLITE_PRIVATE void tdsqlite3Analyze(Parse *pParse, Token *pName1, Token *pName2){
-  tdsqlite3 *db = pParse->db;
-  int iDb;
-  int i;
-  char *z, *zDb;
-  Table *pTab;
-  Index *pIdx;
-  Token *pTableName;
-  Vdbe *v;
-
-  /* Read the database schema. If an error occurs, leave an error message
-  ** and code in pParse and return NULL. */
-  assert( tdsqlite3BtreeHoldsAllMutexes(pParse->db) );
-  if( SQLITE_OK!=tdsqlite3ReadSchema(pParse) ){
-    return;
-  }
-
-  assert( pName2!=0 || pName1==0 );
-  if( pName1==0 ){
-    /* Form 1:  Analyze everything */
-    for(i=0; i<db->nDb; i++){
-      if( i==1 ) continue;  /* Do not analyze the TEMP database */
-      analyzeDatabase(pParse, i);
-    }
-  }else if( pName2->n==0 && (iDb = tdsqlite3FindDb(db, pName1))>=0 ){
-    /* Analyze the schema named as the argument */
-    analyzeDatabase(pParse, iDb);
-  }else{
-    /* Form 3: Analyze the table or index named as an argument */
-    iDb = tdsqlite3TwoPartName(pParse, pName1, pName2, &pTableName);
-    if( iDb>=0 ){
-      zDb = pName2->n ? db->aDb[iDb].zDbSName : 0;
-      z = tdsqlite3NameFromToken(db, pTableName);
-      if( z ){
-        if( (pIdx = tdsqlite3FindIndex(db, z, zDb))!=0 ){
-          analyzeTable(pParse, pIdx->pTable, pIdx);
-        }else if( (pTab = tdsqlite3LocateTable(pParse, 0, z, zDb))!=0 ){
-          analyzeTable(pParse, pTab, 0);
-        }
-        tdsqlite3DbFree(db, z);
-      }
-    }
-  }
-  if( db->nSqlExec==0 && (v = tdsqlite3GetVdbe(pParse))!=0 ){
-    tdsqlite3VdbeAddOp0(v, OP_Expire);
-  }
-}
-
-/*
-** Used to pass information from the analyzer reader through to the
-** callback routine.
-*/
-typedef struct analysisInfo analysisInfo;
-struct analysisInfo {
-  tdsqlite3 *db;
-  const char *zDatabase;
-};
-
-/*
-** The first argument points to a nul-terminated string containing a
-** list of space separated integers. Read the first nOut of these into
-** the array aOut[].
-*/
-static void decodeIntArray(
-  char *zIntArray,       /* String containing int array to decode */
-  int nOut,              /* Number of slots in aOut[] */
-  tRowcnt *aOut,         /* Store integers here */
-  LogEst *aLog,          /* Or, if aOut==0, here */
-  Index *pIndex          /* Handle extra flags for this index, if not NULL */
-){
-  char *z = zIntArray;
-  int c;
-  int i;
-  tRowcnt v;
-
-#ifdef SQLITE_ENABLE_STAT4
-  if( z==0 ) z = "";
-#else
-  assert( z!=0 );
-#endif
-  for(i=0; *z && i<nOut; i++){
-    v = 0;
-    while( (c=z[0])>='0' && c<='9' ){
-      v = v*10 + c - '0';
-      z++;
-    }
-#ifdef SQLITE_ENABLE_STAT4
-    if( aOut ) aOut[i] = v;
-    if( aLog ) aLog[i] = tdsqlite3LogEst(v);
-#else
-    assert( aOut==0 );
-    UNUSED_PARAMETER(aOut);
-    assert( aLog!=0 );
-    aLog[i] = tdsqlite3LogEst(v);
-#endif
-    if( *z==' ' ) z++;
-  }
-#ifndef SQLITE_ENABLE_STAT4
-  assert( pIndex!=0 ); {
-#else
-  if( pIndex ){
-#endif
-    pIndex->bUnordered = 0;
-    pIndex->noSkipScan = 0;
-    while( z[0] ){
-      if( tdsqlite3_strglob("unordered*", z)==0 ){
-        pIndex->bUnordered = 1;
-      }else if( tdsqlite3_strglob("sz=[0-9]*", z)==0 ){
-        int sz = tdsqlite3Atoi(z+3);
-        if( sz<2 ) sz = 2;
-        pIndex->szIdxRow = tdsqlite3LogEst(sz);
-      }else if( tdsqlite3_strglob("noskipscan*", z)==0 ){
-        pIndex->noSkipScan = 1;
-      }
-#ifdef SQLITE_ENABLE_COSTMULT
-      else if( tdsqlite3_strglob("costmult=[0-9]*",z)==0 ){
-        pIndex->pTable->costMult = tdsqlite3LogEst(tdsqlite3Atoi(z+9));
-      }
-#endif
-      while( z[0]!=0 && z[0]!=' ' ) z++;
-      while( z[0]==' ' ) z++;
-    }
-  }
-}
-
-/*
-** This callback is invoked once for each index when reading the
-** sqlite_stat1 table.  
-**
-**     argv[0] = name of the table
-**     argv[1] = name of the index (might be NULL)
-**     argv[2] = results of analysis - on integer for each column
-**
-** Entries for which argv[1]==NULL simply record the number of rows in
-** the table.
-*/
-static int analysisLoader(void *pData, int argc, char **argv, char **NotUsed){
-  analysisInfo *pInfo = (analysisInfo*)pData;
-  Index *pIndex;
-  Table *pTable;
-  const char *z;
-
-  assert( argc==3 );
-  UNUSED_PARAMETER2(NotUsed, argc);
-
-  if( argv==0 || argv[0]==0 || argv[2]==0 ){
-    return 0;
-  }
-  pTable = tdsqlite3FindTable(pInfo->db, argv[0], pInfo->zDatabase);
-  if( pTable==0 ){
-    return 0;
-  }
-  if( argv[1]==0 ){
-    pIndex = 0;
-  }else if( tdsqlite3_stricmp(argv[0],argv[1])==0 ){
-    pIndex = tdsqlite3PrimaryKeyIndex(pTable);
-  }else{
-    pIndex = tdsqlite3FindIndex(pInfo->db, argv[1], pInfo->zDatabase);
-  }
-  z = argv[2];
-
-  if( pIndex ){
-    tRowcnt *aiRowEst = 0;
-    int nCol = pIndex->nKeyCol+1;
-#ifdef SQLITE_ENABLE_STAT4
-    /* Index.aiRowEst may already be set here if there are duplicate 
-    ** sqlite_stat1 entries for this index. In that case just clobber
-    ** the old data with the new instead of allocating a new array.  */
-    if( pIndex->aiRowEst==0 ){
-      pIndex->aiRowEst = (tRowcnt*)tdsqlite3MallocZero(sizeof(tRowcnt) * nCol);
-      if( pIndex->aiRowEst==0 ) tdsqlite3OomFault(pInfo->db);
-    }
-    aiRowEst = pIndex->aiRowEst;
-#endif
-    pIndex->bUnordered = 0;
-    decodeIntArray((char*)z, nCol, aiRowEst, pIndex->aiRowLogEst, pIndex);
-    pIndex->hasStat1 = 1;
-    if( pIndex->pPartIdxWhere==0 ){
-      pTable->nRowLogEst = pIndex->aiRowLogEst[0];
-      pTable->tabFlags |= TF_HasStat1;
-    }
-  }else{
-    Index fakeIdx;
-    fakeIdx.szIdxRow = pTable->szTabRow;
-#ifdef SQLITE_ENABLE_COSTMULT
-    fakeIdx.pTable = pTable;
-#endif
-    decodeIntArray((char*)z, 1, 0, &pTable->nRowLogEst, &fakeIdx);
-    pTable->szTabRow = fakeIdx.szIdxRow;
-    pTable->tabFlags |= TF_HasStat1;
-  }
-
-  return 0;
-}
-
-/*
-** If the Index.aSample variable is not NULL, delete the aSample[] array
-** and its contents.
-*/
-SQLITE_PRIVATE void tdsqlite3DeleteIndexSamples(tdsqlite3 *db, Index *pIdx){
-#ifdef SQLITE_ENABLE_STAT4
-  if( pIdx->aSample ){
-    int j;
-    for(j=0; j<pIdx->nSample; j++){
-      IndexSample *p = &pIdx->aSample[j];
-      tdsqlite3DbFree(db, p->p);
-    }
-    tdsqlite3DbFree(db, pIdx->aSample);
-  }
-  if( db && db->pnBytesFreed==0 ){
-    pIdx->nSample = 0;
-    pIdx->aSample = 0;
-  }
-#else
-  UNUSED_PARAMETER(db);
-  UNUSED_PARAMETER(pIdx);
-#endif /* SQLITE_ENABLE_STAT4 */
-}
-
-#ifdef SQLITE_ENABLE_STAT4
-/*
-** Populate the pIdx->aAvgEq[] array based on the samples currently
-** stored in pIdx->aSample[]. 
-*/
-static void initAvgEq(Index *pIdx){
-  if( pIdx ){
-    IndexSample *aSample = pIdx->aSample;
-    IndexSample *pFinal = &aSample[pIdx->nSample-1];
-    int iCol;
-    int nCol = 1;
-    if( pIdx->nSampleCol>1 ){
-      /* If this is stat4 data, then calculate aAvgEq[] values for all
-      ** sample columns except the last. The last is always set to 1, as
-      ** once the trailing PK fields are considered all index keys are
-      ** unique.  */
-      nCol = pIdx->nSampleCol-1;
-      pIdx->aAvgEq[nCol] = 1;
-    }
-    for(iCol=0; iCol<nCol; iCol++){
-      int nSample = pIdx->nSample;
-      int i;                    /* Used to iterate through samples */
-      tRowcnt sumEq = 0;        /* Sum of the nEq values */
-      tRowcnt avgEq = 0;
-      tRowcnt nRow;             /* Number of rows in index */
-      i64 nSum100 = 0;          /* Number of terms contributing to sumEq */
-      i64 nDist100;             /* Number of distinct values in index */
-
-      if( !pIdx->aiRowEst || iCol>=pIdx->nKeyCol || pIdx->aiRowEst[iCol+1]==0 ){
-        nRow = pFinal->anLt[iCol];
-        nDist100 = (i64)100 * pFinal->anDLt[iCol];
-        nSample--;
-      }else{
-        nRow = pIdx->aiRowEst[0];
-        nDist100 = ((i64)100 * pIdx->aiRowEst[0]) / pIdx->aiRowEst[iCol+1];
-      }
-      pIdx->nRowEst0 = nRow;
-
-      /* Set nSum to the number of distinct (iCol+1) field prefixes that
-      ** occur in the stat4 table for this index. Set sumEq to the sum of 
-      ** the nEq values for column iCol for the same set (adding the value 
-      ** only once where there exist duplicate prefixes).  */
-      for(i=0; i<nSample; i++){
-        if( i==(pIdx->nSample-1)
-         || aSample[i].anDLt[iCol]!=aSample[i+1].anDLt[iCol] 
-        ){
-          sumEq += aSample[i].anEq[iCol];
-          nSum100 += 100;
-        }
-      }
-
-      if( nDist100>nSum100 && sumEq<nRow ){
-        avgEq = ((i64)100 * (nRow - sumEq))/(nDist100 - nSum100);
-      }
-      if( avgEq==0 ) avgEq = 1;
-      pIdx->aAvgEq[iCol] = avgEq;
-    }
-  }
-}
-
-/*
-** Look up an index by name.  Or, if the name of a WITHOUT ROWID table
-** is supplied instead, find the PRIMARY KEY index for that table.
-*/
-static Index *findIndexOrPrimaryKey(
-  tdsqlite3 *db,
-  const char *zName,
-  const char *zDb
-){
-  Index *pIdx = tdsqlite3FindIndex(db, zName, zDb);
-  if( pIdx==0 ){
-    Table *pTab = tdsqlite3FindTable(db, zName, zDb);
-    if( pTab && !HasRowid(pTab) ) pIdx = tdsqlite3PrimaryKeyIndex(pTab);
-  }
-  return pIdx;
-}
-
-/*
-** Load the content from either the sqlite_stat4
-** into the relevant Index.aSample[] arrays.
-**
-** Arguments zSql1 and zSql2 must point to SQL statements that return
-** data equivalent to the following:
-**
-**    zSql1: SELECT idx,count(*) FROM %Q.sqlite_stat4 GROUP BY idx
-**    zSql2: SELECT idx,neq,nlt,ndlt,sample FROM %Q.sqlite_stat4
-**
-** where %Q is replaced with the database name before the SQL is executed.
-*/
-static int loadStatTbl(
-  tdsqlite3 *db,                  /* Database handle */
-  const char *zSql1,            /* SQL statement 1 (see above) */
-  const char *zSql2,            /* SQL statement 2 (see above) */
-  const char *zDb               /* Database name (e.g. "main") */
-){
-  int rc;                       /* Result codes from subroutines */
-  tdsqlite3_stmt *pStmt = 0;      /* An SQL statement being run */
-  char *zSql;                   /* Text of the SQL statement */
-  Index *pPrevIdx = 0;          /* Previous index in the loop */
-  IndexSample *pSample;         /* A slot in pIdx->aSample[] */
-
-  assert( db->lookaside.bDisable );
-  zSql = tdsqlite3MPrintf(db, zSql1, zDb);
-  if( !zSql ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  rc = tdsqlite3_prepare(db, zSql, -1, &pStmt, 0);
-  tdsqlite3DbFree(db, zSql);
-  if( rc ) return rc;
-
-  while( tdsqlite3_step(pStmt)==SQLITE_ROW ){
-    int nIdxCol = 1;              /* Number of columns in stat4 records */
-
-    char *zIndex;   /* Index name */
-    Index *pIdx;    /* Pointer to the index object */
-    int nSample;    /* Number of samples */
-    int nByte;      /* Bytes of space required */
-    int i;          /* Bytes of space required */
-    tRowcnt *pSpace;
-
-    zIndex = (char *)tdsqlite3_column_text(pStmt, 0);
-    if( zIndex==0 ) continue;
-    nSample = tdsqlite3_column_int(pStmt, 1);
-    pIdx = findIndexOrPrimaryKey(db, zIndex, zDb);
-    assert( pIdx==0 || pIdx->nSample==0 );
-    if( pIdx==0 ) continue;
-    assert( !HasRowid(pIdx->pTable) || pIdx->nColumn==pIdx->nKeyCol+1 );
-    if( !HasRowid(pIdx->pTable) && IsPrimaryKeyIndex(pIdx) ){
-      nIdxCol = pIdx->nKeyCol;
-    }else{
-      nIdxCol = pIdx->nColumn;
-    }
-    pIdx->nSampleCol = nIdxCol;
-    nByte = sizeof(IndexSample) * nSample;
-    nByte += sizeof(tRowcnt) * nIdxCol * 3 * nSample;
-    nByte += nIdxCol * sizeof(tRowcnt);     /* Space for Index.aAvgEq[] */
-
-    pIdx->aSample = tdsqlite3DbMallocZero(db, nByte);
-    if( pIdx->aSample==0 ){
-      tdsqlite3_finalize(pStmt);
-      return SQLITE_NOMEM_BKPT;
-    }
-    pSpace = (tRowcnt*)&pIdx->aSample[nSample];
-    pIdx->aAvgEq = pSpace; pSpace += nIdxCol;
-    for(i=0; i<nSample; i++){
-      pIdx->aSample[i].anEq = pSpace; pSpace += nIdxCol;
-      pIdx->aSample[i].anLt = pSpace; pSpace += nIdxCol;
-      pIdx->aSample[i].anDLt = pSpace; pSpace += nIdxCol;
-    }
-    assert( ((u8*)pSpace)-nByte==(u8*)(pIdx->aSample) );
-  }
-  rc = tdsqlite3_finalize(pStmt);
-  if( rc ) return rc;
-
-  zSql = tdsqlite3MPrintf(db, zSql2, zDb);
-  if( !zSql ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  rc = tdsqlite3_prepare(db, zSql, -1, &pStmt, 0);
-  tdsqlite3DbFree(db, zSql);
-  if( rc ) return rc;
-
-  while( tdsqlite3_step(pStmt)==SQLITE_ROW ){
-    char *zIndex;                 /* Index name */
-    Index *pIdx;                  /* Pointer to the index object */
-    int nCol = 1;                 /* Number of columns in index */
-
-    zIndex = (char *)tdsqlite3_column_text(pStmt, 0);
-    if( zIndex==0 ) continue;
-    pIdx = findIndexOrPrimaryKey(db, zIndex, zDb);
-    if( pIdx==0 ) continue;
-    /* This next condition is true if data has already been loaded from 
-    ** the sqlite_stat4 table. */
-    nCol = pIdx->nSampleCol;
-    if( pIdx!=pPrevIdx ){
-      initAvgEq(pPrevIdx);
-      pPrevIdx = pIdx;
-    }
-    pSample = &pIdx->aSample[pIdx->nSample];
-    decodeIntArray((char*)tdsqlite3_column_text(pStmt,1),nCol,pSample->anEq,0,0);
-    decodeIntArray((char*)tdsqlite3_column_text(pStmt,2),nCol,pSample->anLt,0,0);
-    decodeIntArray((char*)tdsqlite3_column_text(pStmt,3),nCol,pSample->anDLt,0,0);
-
-    /* Take a copy of the sample. Add two 0x00 bytes the end of the buffer.
-    ** This is in case the sample record is corrupted. In that case, the
-    ** tdsqlite3VdbeRecordCompare() may read up to two varints past the
-    ** end of the allocated buffer before it realizes it is dealing with
-    ** a corrupt record. Adding the two 0x00 bytes prevents this from causing
-    ** a buffer overread.  */
-    pSample->n = tdsqlite3_column_bytes(pStmt, 4);
-    pSample->p = tdsqlite3DbMallocZero(db, pSample->n + 2);
-    if( pSample->p==0 ){
-      tdsqlite3_finalize(pStmt);
-      return SQLITE_NOMEM_BKPT;
-    }
-    if( pSample->n ){
-      memcpy(pSample->p, tdsqlite3_column_blob(pStmt, 4), pSample->n);
-    }
-    pIdx->nSample++;
-  }
-  rc = tdsqlite3_finalize(pStmt);
-  if( rc==SQLITE_OK ) initAvgEq(pPrevIdx);
-  return rc;
-}
-
-/*
-** Load content from the sqlite_stat4 table into 
-** the Index.aSample[] arrays of all indices.
-*/
-static int loadStat4(tdsqlite3 *db, const char *zDb){
-  int rc = SQLITE_OK;             /* Result codes from subroutines */
-
-  assert( db->lookaside.bDisable );
-  if( tdsqlite3FindTable(db, "sqlite_stat4", zDb) ){
-    rc = loadStatTbl(db,
-      "SELECT idx,count(*) FROM %Q.sqlite_stat4 GROUP BY idx", 
-      "SELECT idx,neq,nlt,ndlt,sample FROM %Q.sqlite_stat4",
-      zDb
-    );
-  }
-  return rc;
-}
-#endif /* SQLITE_ENABLE_STAT4 */
-
-/*
-** Load the content of the sqlite_stat1 and sqlite_stat4 tables. The
-** contents of sqlite_stat1 are used to populate the Index.aiRowEst[]
-** arrays. The contents of sqlite_stat4 are used to populate the
-** Index.aSample[] arrays.
-**
-** If the sqlite_stat1 table is not present in the database, SQLITE_ERROR
-** is returned. In this case, even if SQLITE_ENABLE_STAT4 was defined 
-** during compilation and the sqlite_stat4 table is present, no data is 
-** read from it.
-**
-** If SQLITE_ENABLE_STAT4 was defined during compilation and the 
-** sqlite_stat4 table is not present in the database, SQLITE_ERROR is
-** returned. However, in this case, data is read from the sqlite_stat1
-** table (if it is present) before returning.
-**
-** If an OOM error occurs, this function always sets db->mallocFailed.
-** This means if the caller does not care about other errors, the return
-** code may be ignored.
-*/
-SQLITE_PRIVATE int tdsqlite3AnalysisLoad(tdsqlite3 *db, int iDb){
-  analysisInfo sInfo;
-  HashElem *i;
-  char *zSql;
-  int rc = SQLITE_OK;
-  Schema *pSchema = db->aDb[iDb].pSchema;
-
-  assert( iDb>=0 && iDb<db->nDb );
-  assert( db->aDb[iDb].pBt!=0 );
-
-  /* Clear any prior statistics */
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  for(i=sqliteHashFirst(&pSchema->tblHash); i; i=sqliteHashNext(i)){
-    Table *pTab = sqliteHashData(i);
-    pTab->tabFlags &= ~TF_HasStat1;
-  }
-  for(i=sqliteHashFirst(&pSchema->idxHash); i; i=sqliteHashNext(i)){
-    Index *pIdx = sqliteHashData(i);
-    pIdx->hasStat1 = 0;
-#ifdef SQLITE_ENABLE_STAT4
-    tdsqlite3DeleteIndexSamples(db, pIdx);
-    pIdx->aSample = 0;
-#endif
-  }
-
-  /* Load new statistics out of the sqlite_stat1 table */
-  sInfo.db = db;
-  sInfo.zDatabase = db->aDb[iDb].zDbSName;
-  if( tdsqlite3FindTable(db, "sqlite_stat1", sInfo.zDatabase)!=0 ){
-    zSql = tdsqlite3MPrintf(db, 
-        "SELECT tbl,idx,stat FROM %Q.sqlite_stat1", sInfo.zDatabase);
-    if( zSql==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-    }else{
-      rc = tdsqlite3_exec(db, zSql, analysisLoader, &sInfo, 0);
-      tdsqlite3DbFree(db, zSql);
-    }
-  }
-
-  /* Set appropriate defaults on all indexes not in the sqlite_stat1 table */
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  for(i=sqliteHashFirst(&pSchema->idxHash); i; i=sqliteHashNext(i)){
-    Index *pIdx = sqliteHashData(i);
-    if( !pIdx->hasStat1 ) tdsqlite3DefaultRowEst(pIdx);
-  }
-
-  /* Load the statistics from the sqlite_stat4 table. */
-#ifdef SQLITE_ENABLE_STAT4
-  if( rc==SQLITE_OK ){
-    DisableLookaside;
-    rc = loadStat4(db, sInfo.zDatabase);
-    EnableLookaside;
-  }
-  for(i=sqliteHashFirst(&pSchema->idxHash); i; i=sqliteHashNext(i)){
-    Index *pIdx = sqliteHashData(i);
-    tdsqlite3_free(pIdx->aiRowEst);
-    pIdx->aiRowEst = 0;
-  }
-#endif
-
-  if( rc==SQLITE_NOMEM ){
-    tdsqlite3OomFault(db);
-  }
-  return rc;
-}
-
-
-#endif /* SQLITE_OMIT_ANALYZE */
-
-/************** End of analyze.c *********************************************/
-/************** Begin file attach.c ******************************************/
-/*
-** 2003 April 6
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code used to implement the ATTACH and DETACH commands.
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_ATTACH
-/*
-** Resolve an expression that was part of an ATTACH or DETACH statement. This
-** is slightly different from resolving a normal SQL expression, because simple
-** identifiers are treated as strings, not possible column names or aliases.
-**
-** i.e. if the parser sees:
-**
-**     ATTACH DATABASE abc AS def
-**
-** it treats the two expressions as literal strings 'abc' and 'def' instead of
-** looking for columns of the same name.
-**
-** This only applies to the root node of pExpr, so the statement:
-**
-**     ATTACH DATABASE abc||def AS 'db2'
-**
-** will fail because neither abc or def can be resolved.
-*/
-static int resolveAttachExpr(NameContext *pName, Expr *pExpr)
-{
-  int rc = SQLITE_OK;
-  if( pExpr ){
-    if( pExpr->op!=TK_ID ){
-      rc = tdsqlite3ResolveExprNames(pName, pExpr);
-    }else{
-      pExpr->op = TK_STRING;
-    }
-  }
-  return rc;
-}
-
-/*
-** An SQL user-function registered to do the work of an ATTACH statement. The
-** three arguments to the function come directly from an attach statement:
-**
-**     ATTACH DATABASE x AS y KEY z
-**
-**     SELECT sqlite_attach(x, y, z)
-**
-** If the optional "KEY z" syntax is omitted, an SQL NULL is passed as the
-** third argument.
-**
-** If the db->init.reopenMemdb flags is set, then instead of attaching a
-** new database, close the database on db->init.iDb and reopen it as an
-** empty MemDB.
-*/
-static void attachFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **argv
-){
-  int i;
-  int rc = 0;
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  const char *zName;
-  const char *zFile;
-  char *zPath = 0;
-  char *zErr = 0;
-  unsigned int flags;
-  Db *aNew;                 /* New array of Db pointers */
-  Db *pNew;                 /* Db object for the newly attached database */
-  char *zErrDyn = 0;
-  tdsqlite3_vfs *pVfs;
-
-  UNUSED_PARAMETER(NotUsed);
-  zFile = (const char *)tdsqlite3_value_text(argv[0]);
-  zName = (const char *)tdsqlite3_value_text(argv[1]);
-  if( zFile==0 ) zFile = "";
-  if( zName==0 ) zName = "";
-
-#ifdef SQLITE_ENABLE_DESERIALIZE
-# define REOPEN_AS_MEMDB(db)  (db->init.reopenMemdb)
-#else
-# define REOPEN_AS_MEMDB(db)  (0)
-#endif
-
-  if( REOPEN_AS_MEMDB(db) ){
-    /* This is not a real ATTACH.  Instead, this routine is being called
-    ** from tdsqlite3_deserialize() to close database db->init.iDb and
-    ** reopen it as a MemDB */
-    pVfs = tdsqlite3_vfs_find("memdb");
-    if( pVfs==0 ) return;
-    pNew = &db->aDb[db->init.iDb];
-    if( pNew->pBt ) tdsqlite3BtreeClose(pNew->pBt);
-    pNew->pBt = 0;
-    pNew->pSchema = 0;
-    rc = tdsqlite3BtreeOpen(pVfs, "x\0", db, &pNew->pBt, 0, SQLITE_OPEN_MAIN_DB);
-  }else{
-    /* This is a real ATTACH
-    **
-    ** Check for the following errors:
-    **
-    **     * Too many attached databases,
-    **     * Transaction currently open
-    **     * Specified database name already being used.
-    */
-    if( db->nDb>=db->aLimit[SQLITE_LIMIT_ATTACHED]+2 ){
-      zErrDyn = tdsqlite3MPrintf(db, "too many attached databases - max %d", 
-        db->aLimit[SQLITE_LIMIT_ATTACHED]
-      );
-      goto attach_error;
-    }
-    for(i=0; i<db->nDb; i++){
-      char *z = db->aDb[i].zDbSName;
-      assert( z && zName );
-      if( tdsqlite3StrICmp(z, zName)==0 ){
-        zErrDyn = tdsqlite3MPrintf(db, "database %s is already in use", zName);
-        goto attach_error;
-      }
-    }
-  
-    /* Allocate the new entry in the db->aDb[] array and initialize the schema
-    ** hash tables.
-    */
-    if( db->aDb==db->aDbStatic ){
-      aNew = tdsqlite3DbMallocRawNN(db, sizeof(db->aDb[0])*3 );
-      if( aNew==0 ) return;
-      memcpy(aNew, db->aDb, sizeof(db->aDb[0])*2);
-    }else{
-      aNew = tdsqlite3DbRealloc(db, db->aDb, sizeof(db->aDb[0])*(db->nDb+1) );
-      if( aNew==0 ) return;
-    }
-    db->aDb = aNew;
-    pNew = &db->aDb[db->nDb];
-    memset(pNew, 0, sizeof(*pNew));
-  
-    /* Open the database file. If the btree is successfully opened, use
-    ** it to obtain the database schema. At this point the schema may
-    ** or may not be initialized.
-    */
-    flags = db->openFlags;
-    rc = tdsqlite3ParseUri(db->pVfs->zName, zFile, &flags, &pVfs, &zPath, &zErr);
-    if( rc!=SQLITE_OK ){
-      if( rc==SQLITE_NOMEM ) tdsqlite3OomFault(db);
-      tdsqlite3_result_error(context, zErr, -1);
-      tdsqlite3_free(zErr);
-      return;
-    }
-    assert( pVfs );
-    flags |= SQLITE_OPEN_MAIN_DB;
-    rc = tdsqlite3BtreeOpen(pVfs, zPath, db, &pNew->pBt, 0, flags);
-    db->nDb++;
-    pNew->zDbSName = tdsqlite3DbStrDup(db, zName);
-  }
-  db->noSharedCache = 0;
-  if( rc==SQLITE_CONSTRAINT ){
-    rc = SQLITE_ERROR;
-    zErrDyn = tdsqlite3MPrintf(db, "database is already attached");
-  }else if( rc==SQLITE_OK ){
-    Pager *pPager;
-    pNew->pSchema = tdsqlite3SchemaGet(db, pNew->pBt);
-    if( !pNew->pSchema ){
-      rc = SQLITE_NOMEM_BKPT;
-    }else if( pNew->pSchema->file_format && pNew->pSchema->enc!=ENC(db) ){
-      zErrDyn = tdsqlite3MPrintf(db, 
-        "attached databases must use the same text encoding as main database");
-      rc = SQLITE_ERROR;
-    }
-    tdsqlite3BtreeEnter(pNew->pBt);
-    pPager = tdsqlite3BtreePager(pNew->pBt);
-    tdsqlite3PagerLockingMode(pPager, db->dfltLockMode);
-    tdsqlite3BtreeSecureDelete(pNew->pBt,
-                             tdsqlite3BtreeSecureDelete(db->aDb[0].pBt,-1) );
-#ifndef SQLITE_OMIT_PAGER_PRAGMAS
-    tdsqlite3BtreeSetPagerFlags(pNew->pBt,
-                      PAGER_SYNCHRONOUS_FULL | (db->flags & PAGER_FLAGS_MASK));
-#endif
-    tdsqlite3BtreeLeave(pNew->pBt);
-  }
-  pNew->safety_level = SQLITE_DEFAULT_SYNCHRONOUS+1;
-  if( rc==SQLITE_OK && pNew->zDbSName==0 ){
-    rc = SQLITE_NOMEM_BKPT;
-  }
-
-
-#ifdef SQLITE_HAS_CODEC
-  if( rc==SQLITE_OK ){
-    extern int tdsqlite3CodecAttach(tdsqlite3*, int, const void*, int);
-    extern void tdsqlite3CodecGetKey(tdsqlite3*, int, void**, int*);
-    int nKey;
-    char *zKey;
-    int t = tdsqlite3_value_type(argv[2]);
-    switch( t ){
-      case SQLITE_INTEGER:
-      case SQLITE_FLOAT:
-        zErrDyn = tdsqlite3DbStrDup(db, "Invalid key value");
-        rc = SQLITE_ERROR;
-        break;
-        
-      case SQLITE_TEXT:
-      case SQLITE_BLOB:
-        nKey = tdsqlite3_value_bytes(argv[2]);
-        zKey = (char *)tdsqlite3_value_blob(argv[2]);
-        rc = tdsqlite3CodecAttach(db, db->nDb-1, zKey, nKey);
-        break;
-
-      case SQLITE_NULL:
-        /* No key specified.  Use the key from URI filename, or if none,
-        ** use the key from the main database. */
-        if( tdsqlite3CodecQueryParameters(db, zName, zPath)==0 ){
-          tdsqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey);
-          if( nKey || tdsqlite3BtreeGetOptimalReserve(db->aDb[0].pBt)>0 ){
-            rc = tdsqlite3CodecAttach(db, db->nDb-1, zKey, nKey);
-          }
-        }
-        break;
-    }
-  }
-#endif
-  tdsqlite3_free( zPath );
-
-  /* If the file was opened successfully, read the schema for the new database.
-  ** If this fails, or if opening the file failed, then close the file and 
-  ** remove the entry from the db->aDb[] array. i.e. put everything back the
-  ** way we found it.
-  */
-  if( rc==SQLITE_OK ){
-    tdsqlite3BtreeEnterAll(db);
-    db->init.iDb = 0;
-    db->mDbFlags &= ~(DBFLAG_SchemaKnownOk);
-    if( !REOPEN_AS_MEMDB(db) ){
-      rc = tdsqlite3Init(db, &zErrDyn);
-    }
-    tdsqlite3BtreeLeaveAll(db);
-    assert( zErrDyn==0 || rc!=SQLITE_OK );
-  }
-#ifdef SQLITE_USER_AUTHENTICATION
-  if( rc==SQLITE_OK && !REOPEN_AS_MEMDB(db) ){
-    u8 newAuth = 0;
-    rc = tdsqlite3UserAuthCheckLogin(db, zName, &newAuth);
-    if( newAuth<db->auth.authLevel ){
-      rc = SQLITE_AUTH_USER;
-    }
-  }
-#endif
-  if( rc ){
-    if( !REOPEN_AS_MEMDB(db) ){
-      int iDb = db->nDb - 1;
-      assert( iDb>=2 );
-      if( db->aDb[iDb].pBt ){
-        tdsqlite3BtreeClose(db->aDb[iDb].pBt);
-        db->aDb[iDb].pBt = 0;
-        db->aDb[iDb].pSchema = 0;
-      }
-      tdsqlite3ResetAllSchemasOfConnection(db);
-      db->nDb = iDb;
-      if( rc==SQLITE_NOMEM || rc==SQLITE_IOERR_NOMEM ){
-        tdsqlite3OomFault(db);
-        tdsqlite3DbFree(db, zErrDyn);
-        zErrDyn = tdsqlite3MPrintf(db, "out of memory");
-      }else if( zErrDyn==0 ){
-        zErrDyn = tdsqlite3MPrintf(db, "unable to open database: %s", zFile);
-      }
-    }
-    goto attach_error;
-  }
-  
-  return;
-
-attach_error:
-  /* Return an error if we get here */
-  if( zErrDyn ){
-    tdsqlite3_result_error(context, zErrDyn, -1);
-    tdsqlite3DbFree(db, zErrDyn);
-  }
-  if( rc ) tdsqlite3_result_error_code(context, rc);
-}
-
-/*
-** An SQL user-function registered to do the work of an DETACH statement. The
-** three arguments to the function come directly from a detach statement:
-**
-**     DETACH DATABASE x
-**
-**     SELECT sqlite_detach(x)
-*/
-static void detachFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **argv
-){
-  const char *zName = (const char *)tdsqlite3_value_text(argv[0]);
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  int i;
-  Db *pDb = 0;
-  HashElem *pEntry;
-  char zErr[128];
-
-  UNUSED_PARAMETER(NotUsed);
-
-  if( zName==0 ) zName = "";
-  for(i=0; i<db->nDb; i++){
-    pDb = &db->aDb[i];
-    if( pDb->pBt==0 ) continue;
-    if( tdsqlite3StrICmp(pDb->zDbSName, zName)==0 ) break;
-  }
-
-  if( i>=db->nDb ){
-    tdsqlite3_snprintf(sizeof(zErr),zErr, "no such database: %s", zName);
-    goto detach_error;
-  }
-  if( i<2 ){
-    tdsqlite3_snprintf(sizeof(zErr),zErr, "cannot detach database %s", zName);
-    goto detach_error;
-  }
-  if( tdsqlite3BtreeIsInReadTrans(pDb->pBt) || tdsqlite3BtreeIsInBackup(pDb->pBt) ){
-    tdsqlite3_snprintf(sizeof(zErr),zErr, "database %s is locked", zName);
-    goto detach_error;
-  }
-
-  /* If any TEMP triggers reference the schema being detached, move those
-  ** triggers to reference the TEMP schema itself. */
-  assert( db->aDb[1].pSchema );
-  pEntry = sqliteHashFirst(&db->aDb[1].pSchema->trigHash);
-  while( pEntry ){
-    Trigger *pTrig = (Trigger*)sqliteHashData(pEntry);
-    if( pTrig->pTabSchema==pDb->pSchema ){
-      pTrig->pTabSchema = pTrig->pSchema;
-    }
-    pEntry = sqliteHashNext(pEntry);
-  }
-
-  tdsqlite3BtreeClose(pDb->pBt);
-  pDb->pBt = 0;
-  pDb->pSchema = 0;
-  tdsqlite3CollapseDatabaseArray(db);
-  return;
-
-detach_error:
-  tdsqlite3_result_error(context, zErr, -1);
-}
-
-/*
-** This procedure generates VDBE code for a single invocation of either the
-** sqlite_detach() or sqlite_attach() SQL user functions.
-*/
-static void codeAttach(
-  Parse *pParse,       /* The parser context */
-  int type,            /* Either SQLITE_ATTACH or SQLITE_DETACH */
-  FuncDef const *pFunc,/* FuncDef wrapper for detachFunc() or attachFunc() */
-  Expr *pAuthArg,      /* Expression to pass to authorization callback */
-  Expr *pFilename,     /* Name of database file */
-  Expr *pDbname,       /* Name of the database to use internally */
-  Expr *pKey           /* Database key for encryption extension */
-){
-  int rc;
-  NameContext sName;
-  Vdbe *v;
-  tdsqlite3* db = pParse->db;
-  int regArgs;
-
-  if( pParse->nErr ) goto attach_end;
-  memset(&sName, 0, sizeof(NameContext));
-  sName.pParse = pParse;
-
-  if( 
-      SQLITE_OK!=(rc = resolveAttachExpr(&sName, pFilename)) ||
-      SQLITE_OK!=(rc = resolveAttachExpr(&sName, pDbname)) ||
-      SQLITE_OK!=(rc = resolveAttachExpr(&sName, pKey))
-  ){
-    goto attach_end;
-  }
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  if( pAuthArg ){
-    char *zAuthArg;
-    if( pAuthArg->op==TK_STRING ){
-      zAuthArg = pAuthArg->u.zToken;
-    }else{
-      zAuthArg = 0;
-    }
-    rc = tdsqlite3AuthCheck(pParse, type, zAuthArg, 0, 0);
-    if(rc!=SQLITE_OK ){
-      goto attach_end;
-    }
-  }
-#endif /* SQLITE_OMIT_AUTHORIZATION */
-
-
-  v = tdsqlite3GetVdbe(pParse);
-  regArgs = tdsqlite3GetTempRange(pParse, 4);
-  tdsqlite3ExprCode(pParse, pFilename, regArgs);
-  tdsqlite3ExprCode(pParse, pDbname, regArgs+1);
-  tdsqlite3ExprCode(pParse, pKey, regArgs+2);
-
-  assert( v || db->mallocFailed );
-  if( v ){
-    tdsqlite3VdbeAddFunctionCall(pParse, 0, regArgs+3-pFunc->nArg, regArgs+3,
-                               pFunc->nArg, pFunc, 0);
-    /* Code an OP_Expire. For an ATTACH statement, set P1 to true (expire this
-    ** statement only). For DETACH, set it to false (expire all existing
-    ** statements).
-    */
-    tdsqlite3VdbeAddOp1(v, OP_Expire, (type==SQLITE_ATTACH));
-  }
-  
-attach_end:
-  tdsqlite3ExprDelete(db, pFilename);
-  tdsqlite3ExprDelete(db, pDbname);
-  tdsqlite3ExprDelete(db, pKey);
-}
-
-/*
-** Called by the parser to compile a DETACH statement.
-**
-**     DETACH pDbname
-*/
-SQLITE_PRIVATE void tdsqlite3Detach(Parse *pParse, Expr *pDbname){
-  static const FuncDef detach_func = {
-    1,                /* nArg */
-    SQLITE_UTF8,      /* funcFlags */
-    0,                /* pUserData */
-    0,                /* pNext */
-    detachFunc,       /* xSFunc */
-    0,                /* xFinalize */
-    0, 0,             /* xValue, xInverse */
-    "sqlite_detach",  /* zName */
-    {0}
-  };
-  codeAttach(pParse, SQLITE_DETACH, &detach_func, pDbname, 0, 0, pDbname);
-}
-
-/*
-** Called by the parser to compile an ATTACH statement.
-**
-**     ATTACH p AS pDbname KEY pKey
-*/
-SQLITE_PRIVATE void tdsqlite3Attach(Parse *pParse, Expr *p, Expr *pDbname, Expr *pKey){
-  static const FuncDef attach_func = {
-    3,                /* nArg */
-    SQLITE_UTF8,      /* funcFlags */
-    0,                /* pUserData */
-    0,                /* pNext */
-    attachFunc,       /* xSFunc */
-    0,                /* xFinalize */
-    0, 0,             /* xValue, xInverse */
-    "sqlite_attach",  /* zName */
-    {0}
-  };
-  codeAttach(pParse, SQLITE_ATTACH, &attach_func, p, p, pDbname, pKey);
-}
-#endif /* SQLITE_OMIT_ATTACH */
-
-/*
-** Initialize a DbFixer structure.  This routine must be called prior
-** to passing the structure to one of the sqliteFixAAAA() routines below.
-*/
-SQLITE_PRIVATE void tdsqlite3FixInit(
-  DbFixer *pFix,      /* The fixer to be initialized */
-  Parse *pParse,      /* Error messages will be written here */
-  int iDb,            /* This is the database that must be used */
-  const char *zType,  /* "view", "trigger", or "index" */
-  const Token *pName  /* Name of the view, trigger, or index */
-){
-  tdsqlite3 *db;
-
-  db = pParse->db;
-  assert( db->nDb>iDb );
-  pFix->pParse = pParse;
-  pFix->zDb = db->aDb[iDb].zDbSName;
-  pFix->pSchema = db->aDb[iDb].pSchema;
-  pFix->zType = zType;
-  pFix->pName = pName;
-  pFix->bTemp = (iDb==1);
-}
-
-/*
-** The following set of routines walk through the parse tree and assign
-** a specific database to all table references where the database name
-** was left unspecified in the original SQL statement.  The pFix structure
-** must have been initialized by a prior call to tdsqlite3FixInit().
-**
-** These routines are used to make sure that an index, trigger, or
-** view in one database does not refer to objects in a different database.
-** (Exception: indices, triggers, and views in the TEMP database are
-** allowed to refer to anything.)  If a reference is explicitly made
-** to an object in a different database, an error message is added to
-** pParse->zErrMsg and these routines return non-zero.  If everything
-** checks out, these routines return 0.
-*/
-SQLITE_PRIVATE int tdsqlite3FixSrcList(
-  DbFixer *pFix,       /* Context of the fixation */
-  SrcList *pList       /* The Source list to check and modify */
-){
-  int i;
-  const char *zDb;
-  struct SrcList_item *pItem;
-
-  if( NEVER(pList==0) ) return 0;
-  zDb = pFix->zDb;
-  for(i=0, pItem=pList->a; i<pList->nSrc; i++, pItem++){
-    if( pFix->bTemp==0 ){
-      if( pItem->zDatabase && tdsqlite3StrICmp(pItem->zDatabase, zDb) ){
-        tdsqlite3ErrorMsg(pFix->pParse,
-            "%s %T cannot reference objects in database %s",
-            pFix->zType, pFix->pName, pItem->zDatabase);
-        return 1;
-      }
-      tdsqlite3DbFree(pFix->pParse->db, pItem->zDatabase);
-      pItem->zDatabase = 0;
-      pItem->pSchema = pFix->pSchema;
-      pItem->fg.fromDDL = 1;
-    }
-#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_TRIGGER)
-    if( tdsqlite3FixSelect(pFix, pItem->pSelect) ) return 1;
-    if( tdsqlite3FixExpr(pFix, pItem->pOn) ) return 1;
-#endif
-    if( pItem->fg.isTabFunc && tdsqlite3FixExprList(pFix, pItem->u1.pFuncArg) ){
-      return 1;
-    }
-  }
-  return 0;
-}
-#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_TRIGGER)
-SQLITE_PRIVATE int tdsqlite3FixSelect(
-  DbFixer *pFix,       /* Context of the fixation */
-  Select *pSelect      /* The SELECT statement to be fixed to one database */
-){
-  while( pSelect ){
-    if( tdsqlite3FixExprList(pFix, pSelect->pEList) ){
-      return 1;
-    }
-    if( tdsqlite3FixSrcList(pFix, pSelect->pSrc) ){
-      return 1;
-    }
-    if( tdsqlite3FixExpr(pFix, pSelect->pWhere) ){
-      return 1;
-    }
-    if( tdsqlite3FixExprList(pFix, pSelect->pGroupBy) ){
-      return 1;
-    }
-    if( tdsqlite3FixExpr(pFix, pSelect->pHaving) ){
-      return 1;
-    }
-    if( tdsqlite3FixExprList(pFix, pSelect->pOrderBy) ){
-      return 1;
-    }
-    if( tdsqlite3FixExpr(pFix, pSelect->pLimit) ){
-      return 1;
-    }
-    if( pSelect->pWith ){
-      int i;
-      for(i=0; i<pSelect->pWith->nCte; i++){
-        if( tdsqlite3FixSelect(pFix, pSelect->pWith->a[i].pSelect) ){
-          return 1;
-        }
-      }
-    }
-    pSelect = pSelect->pPrior;
-  }
-  return 0;
-}
-SQLITE_PRIVATE int tdsqlite3FixExpr(
-  DbFixer *pFix,     /* Context of the fixation */
-  Expr *pExpr        /* The expression to be fixed to one database */
-){
-  while( pExpr ){
-    if( !pFix->bTemp ) ExprSetProperty(pExpr, EP_FromDDL);
-    if( pExpr->op==TK_VARIABLE ){
-      if( pFix->pParse->db->init.busy ){
-        pExpr->op = TK_NULL;
-      }else{
-        tdsqlite3ErrorMsg(pFix->pParse, "%s cannot use variables", pFix->zType);
-        return 1;
-      }
-    }
-    if( ExprHasProperty(pExpr, EP_TokenOnly|EP_Leaf) ) break;
-    if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-      if( tdsqlite3FixSelect(pFix, pExpr->x.pSelect) ) return 1;
-    }else{
-      if( tdsqlite3FixExprList(pFix, pExpr->x.pList) ) return 1;
-    }
-    if( tdsqlite3FixExpr(pFix, pExpr->pRight) ){
-      return 1;
-    }
-    pExpr = pExpr->pLeft;
-  }
-  return 0;
-}
-SQLITE_PRIVATE int tdsqlite3FixExprList(
-  DbFixer *pFix,     /* Context of the fixation */
-  ExprList *pList    /* The expression to be fixed to one database */
-){
-  int i;
-  struct ExprList_item *pItem;
-  if( pList==0 ) return 0;
-  for(i=0, pItem=pList->a; i<pList->nExpr; i++, pItem++){
-    if( tdsqlite3FixExpr(pFix, pItem->pExpr) ){
-      return 1;
-    }
-  }
-  return 0;
-}
-#endif
-
-#ifndef SQLITE_OMIT_TRIGGER
-SQLITE_PRIVATE int tdsqlite3FixTriggerStep(
-  DbFixer *pFix,     /* Context of the fixation */
-  TriggerStep *pStep /* The trigger step be fixed to one database */
-){
-  while( pStep ){
-    if( tdsqlite3FixSelect(pFix, pStep->pSelect) ){
-      return 1;
-    }
-    if( tdsqlite3FixExpr(pFix, pStep->pWhere) ){
-      return 1;
-    }
-    if( tdsqlite3FixExprList(pFix, pStep->pExprList) ){
-      return 1;
-    }
-#ifndef SQLITE_OMIT_UPSERT
-    if( pStep->pUpsert ){
-      Upsert *pUp = pStep->pUpsert;
-      if( tdsqlite3FixExprList(pFix, pUp->pUpsertTarget)
-       || tdsqlite3FixExpr(pFix, pUp->pUpsertTargetWhere)
-       || tdsqlite3FixExprList(pFix, pUp->pUpsertSet)
-       || tdsqlite3FixExpr(pFix, pUp->pUpsertWhere)
-      ){
-        return 1;
-      }
-    }
-#endif
-    pStep = pStep->pNext;
-  }
-  return 0;
-}
-#endif
-
-/************** End of attach.c **********************************************/
-/************** Begin file auth.c ********************************************/
-/*
-** 2003 January 11
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code used to implement the tdsqlite3_set_authorizer()
-** API.  This facility is an optional feature of the library.  Embedded
-** systems that do not need this facility may omit it by recompiling
-** the library with -DSQLITE_OMIT_AUTHORIZATION=1
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** All of the code in this file may be omitted by defining a single
-** macro.
-*/
-#ifndef SQLITE_OMIT_AUTHORIZATION
-
-/*
-** Set or clear the access authorization function.
-**
-** The access authorization function is be called during the compilation
-** phase to verify that the user has read and/or write access permission on
-** various fields of the database.  The first argument to the auth function
-** is a copy of the 3rd argument to this routine.  The second argument
-** to the auth function is one of these constants:
-**
-**       SQLITE_CREATE_INDEX
-**       SQLITE_CREATE_TABLE
-**       SQLITE_CREATE_TEMP_INDEX
-**       SQLITE_CREATE_TEMP_TABLE
-**       SQLITE_CREATE_TEMP_TRIGGER
-**       SQLITE_CREATE_TEMP_VIEW
-**       SQLITE_CREATE_TRIGGER
-**       SQLITE_CREATE_VIEW
-**       SQLITE_DELETE
-**       SQLITE_DROP_INDEX
-**       SQLITE_DROP_TABLE
-**       SQLITE_DROP_TEMP_INDEX
-**       SQLITE_DROP_TEMP_TABLE
-**       SQLITE_DROP_TEMP_TRIGGER
-**       SQLITE_DROP_TEMP_VIEW
-**       SQLITE_DROP_TRIGGER
-**       SQLITE_DROP_VIEW
-**       SQLITE_INSERT
-**       SQLITE_PRAGMA
-**       SQLITE_READ
-**       SQLITE_SELECT
-**       SQLITE_TRANSACTION
-**       SQLITE_UPDATE
-**
-** The third and fourth arguments to the auth function are the name of
-** the table and the column that are being accessed.  The auth function
-** should return either SQLITE_OK, SQLITE_DENY, or SQLITE_IGNORE.  If
-** SQLITE_OK is returned, it means that access is allowed.  SQLITE_DENY
-** means that the SQL statement will never-run - the tdsqlite3_exec() call
-** will return with an error.  SQLITE_IGNORE means that the SQL statement
-** should run but attempts to read the specified column will return NULL
-** and attempts to write the column will be ignored.
-**
-** Setting the auth function to NULL disables this hook.  The default
-** setting of the auth function is NULL.
-*/
-SQLITE_API int tdsqlite3_set_authorizer(
-  tdsqlite3 *db,
-  int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
-  void *pArg
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  db->xAuth = (tdsqlite3_xauth)xAuth;
-  db->pAuthArg = pArg;
-  if( db->xAuth ) tdsqlite3ExpirePreparedStatements(db, 1);
-  tdsqlite3_mutex_leave(db->mutex);
-  return SQLITE_OK;
-}
-
-/*
-** Write an error message into pParse->zErrMsg that explains that the
-** user-supplied authorization function returned an illegal value.
-*/
-static void sqliteAuthBadReturnCode(Parse *pParse){
-  tdsqlite3ErrorMsg(pParse, "authorizer malfunction");
-  pParse->rc = SQLITE_ERROR;
-}
-
-/*
-** Invoke the authorization callback for permission to read column zCol from
-** table zTab in database zDb. This function assumes that an authorization
-** callback has been registered (i.e. that sqlite3.xAuth is not NULL).
-**
-** If SQLITE_IGNORE is returned and pExpr is not NULL, then pExpr is changed
-** to an SQL NULL expression. Otherwise, if pExpr is NULL, then SQLITE_IGNORE
-** is treated as SQLITE_DENY. In this case an error is left in pParse.
-*/
-SQLITE_PRIVATE int tdsqlite3AuthReadCol(
-  Parse *pParse,                  /* The parser context */
-  const char *zTab,               /* Table name */
-  const char *zCol,               /* Column name */
-  int iDb                         /* Index of containing database. */
-){
-  tdsqlite3 *db = pParse->db;          /* Database handle */
-  char *zDb = db->aDb[iDb].zDbSName; /* Schema name of attached database */
-  int rc;                            /* Auth callback return code */
-
-  if( db->init.busy ) return SQLITE_OK;
-  rc = db->xAuth(db->pAuthArg, SQLITE_READ, zTab,zCol,zDb,pParse->zAuthContext
-#ifdef SQLITE_USER_AUTHENTICATION
-                 ,db->auth.zAuthUser
-#endif
-                );
-  if( rc==SQLITE_DENY ){
-    char *z = tdsqlite3_mprintf("%s.%s", zTab, zCol);
-    if( db->nDb>2 || iDb!=0 ) z = tdsqlite3_mprintf("%s.%z", zDb, z);
-    tdsqlite3ErrorMsg(pParse, "access to %z is prohibited", z);
-    pParse->rc = SQLITE_AUTH;
-  }else if( rc!=SQLITE_IGNORE && rc!=SQLITE_OK ){
-    sqliteAuthBadReturnCode(pParse);
-  }
-  return rc;
-}
-
-/*
-** The pExpr should be a TK_COLUMN expression.  The table referred to
-** is in pTabList or else it is the NEW or OLD table of a trigger.  
-** Check to see if it is OK to read this particular column.
-**
-** If the auth function returns SQLITE_IGNORE, change the TK_COLUMN 
-** instruction into a TK_NULL.  If the auth function returns SQLITE_DENY,
-** then generate an error.
-*/
-SQLITE_PRIVATE void tdsqlite3AuthRead(
-  Parse *pParse,        /* The parser context */
-  Expr *pExpr,          /* The expression to check authorization on */
-  Schema *pSchema,      /* The schema of the expression */
-  SrcList *pTabList     /* All table that pExpr might refer to */
-){
-  tdsqlite3 *db = pParse->db;
-  Table *pTab = 0;      /* The table being read */
-  const char *zCol;     /* Name of the column of the table */
-  int iSrc;             /* Index in pTabList->a[] of table being read */
-  int iDb;              /* The index of the database the expression refers to */
-  int iCol;             /* Index of column in table */
-
-  assert( pExpr->op==TK_COLUMN || pExpr->op==TK_TRIGGER );
-  assert( !IN_RENAME_OBJECT || db->xAuth==0 );
-  if( db->xAuth==0 ) return;
-  iDb = tdsqlite3SchemaToIndex(pParse->db, pSchema);
-  if( iDb<0 ){
-    /* An attempt to read a column out of a subquery or other
-    ** temporary table. */
-    return;
-  }
-
-  if( pExpr->op==TK_TRIGGER ){
-    pTab = pParse->pTriggerTab;
-  }else{
-    assert( pTabList );
-    for(iSrc=0; ALWAYS(iSrc<pTabList->nSrc); iSrc++){
-      if( pExpr->iTable==pTabList->a[iSrc].iCursor ){
-        pTab = pTabList->a[iSrc].pTab;
-        break;
-      }
-    }
-  }
-  iCol = pExpr->iColumn;
-  if( NEVER(pTab==0) ) return;
-
-  if( iCol>=0 ){
-    assert( iCol<pTab->nCol );
-    zCol = pTab->aCol[iCol].zName;
-  }else if( pTab->iPKey>=0 ){
-    assert( pTab->iPKey<pTab->nCol );
-    zCol = pTab->aCol[pTab->iPKey].zName;
-  }else{
-    zCol = "ROWID";
-  }
-  assert( iDb>=0 && iDb<db->nDb );
-  if( SQLITE_IGNORE==tdsqlite3AuthReadCol(pParse, pTab->zName, zCol, iDb) ){
-    pExpr->op = TK_NULL;
-  }
-}
-
-/*
-** Do an authorization check using the code and arguments given.  Return
-** either SQLITE_OK (zero) or SQLITE_IGNORE or SQLITE_DENY.  If SQLITE_DENY
-** is returned, then the error count and error message in pParse are
-** modified appropriately.
-*/
-SQLITE_PRIVATE int tdsqlite3AuthCheck(
-  Parse *pParse,
-  int code,
-  const char *zArg1,
-  const char *zArg2,
-  const char *zArg3
-){
-  tdsqlite3 *db = pParse->db;
-  int rc;
-
-  /* Don't do any authorization checks if the database is initialising
-  ** or if the parser is being invoked from within tdsqlite3_declare_vtab.
-  */
-  assert( !IN_RENAME_OBJECT || db->xAuth==0 );
-  if( db->init.busy || IN_SPECIAL_PARSE ){
-    return SQLITE_OK;
-  }
-
-  if( db->xAuth==0 ){
-    return SQLITE_OK;
-  }
-
-  /* EVIDENCE-OF: R-43249-19882 The third through sixth parameters to the
-  ** callback are either NULL pointers or zero-terminated strings that
-  ** contain additional details about the action to be authorized.
-  **
-  ** The following testcase() macros show that any of the 3rd through 6th
-  ** parameters can be either NULL or a string. */
-  testcase( zArg1==0 );
-  testcase( zArg2==0 );
-  testcase( zArg3==0 );
-  testcase( pParse->zAuthContext==0 );
-
-  rc = db->xAuth(db->pAuthArg, code, zArg1, zArg2, zArg3, pParse->zAuthContext
-#ifdef SQLITE_USER_AUTHENTICATION
-                 ,db->auth.zAuthUser
-#endif
-                );
-  if( rc==SQLITE_DENY ){
-    tdsqlite3ErrorMsg(pParse, "not authorized");
-    pParse->rc = SQLITE_AUTH;
-  }else if( rc!=SQLITE_OK && rc!=SQLITE_IGNORE ){
-    rc = SQLITE_DENY;
-    sqliteAuthBadReturnCode(pParse);
-  }
-  return rc;
-}
-
-/*
-** Push an authorization context.  After this routine is called, the
-** zArg3 argument to authorization callbacks will be zContext until
-** popped.  Or if pParse==0, this routine is a no-op.
-*/
-SQLITE_PRIVATE void tdsqlite3AuthContextPush(
-  Parse *pParse,
-  AuthContext *pContext, 
-  const char *zContext
-){
-  assert( pParse );
-  pContext->pParse = pParse;
-  pContext->zAuthContext = pParse->zAuthContext;
-  pParse->zAuthContext = zContext;
-}
-
-/*
-** Pop an authorization context that was previously pushed
-** by tdsqlite3AuthContextPush
-*/
-SQLITE_PRIVATE void tdsqlite3AuthContextPop(AuthContext *pContext){
-  if( pContext->pParse ){
-    pContext->pParse->zAuthContext = pContext->zAuthContext;
-    pContext->pParse = 0;
-  }
-}
-
-#endif /* SQLITE_OMIT_AUTHORIZATION */
-
-/************** End of auth.c ************************************************/
-/************** Begin file build.c *******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains C code routines that are called by the SQLite parser
-** when syntax rules are reduced.  The routines in this file handle the
-** following kinds of SQL syntax:
-**
-**     CREATE TABLE
-**     DROP TABLE
-**     CREATE INDEX
-**     DROP INDEX
-**     creating ID lists
-**     BEGIN TRANSACTION
-**     COMMIT
-**     ROLLBACK
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_SHARED_CACHE
-/*
-** The TableLock structure is only used by the tdsqlite3TableLock() and
-** codeTableLocks() functions.
-*/
-struct TableLock {
-  int iDb;               /* The database containing the table to be locked */
-  int iTab;              /* The root page of the table to be locked */
-  u8 isWriteLock;        /* True for write lock.  False for a read lock */
-  const char *zLockName; /* Name of the table */
-};
-
-/*
-** Record the fact that we want to lock a table at run-time.  
-**
-** The table to be locked has root page iTab and is found in database iDb.
-** A read or a write lock can be taken depending on isWritelock.
-**
-** This routine just records the fact that the lock is desired.  The
-** code to make the lock occur is generated by a later call to
-** codeTableLocks() which occurs during tdsqlite3FinishCoding().
-*/
-SQLITE_PRIVATE void tdsqlite3TableLock(
-  Parse *pParse,     /* Parsing context */
-  int iDb,           /* Index of the database containing the table to lock */
-  int iTab,          /* Root page number of the table to be locked */
-  u8 isWriteLock,    /* True for a write lock */
-  const char *zName  /* Name of the table to be locked */
-){
-  Parse *pToplevel = tdsqlite3ParseToplevel(pParse);
-  int i;
-  int nBytes;
-  TableLock *p;
-  assert( iDb>=0 );
-
-  if( iDb==1 ) return;
-  if( !tdsqlite3BtreeSharable(pParse->db->aDb[iDb].pBt) ) return;
-  for(i=0; i<pToplevel->nTableLock; i++){
-    p = &pToplevel->aTableLock[i];
-    if( p->iDb==iDb && p->iTab==iTab ){
-      p->isWriteLock = (p->isWriteLock || isWriteLock);
-      return;
-    }
-  }
-
-  nBytes = sizeof(TableLock) * (pToplevel->nTableLock+1);
-  pToplevel->aTableLock =
-      tdsqlite3DbReallocOrFree(pToplevel->db, pToplevel->aTableLock, nBytes);
-  if( pToplevel->aTableLock ){
-    p = &pToplevel->aTableLock[pToplevel->nTableLock++];
-    p->iDb = iDb;
-    p->iTab = iTab;
-    p->isWriteLock = isWriteLock;
-    p->zLockName = zName;
-  }else{
-    pToplevel->nTableLock = 0;
-    tdsqlite3OomFault(pToplevel->db);
-  }
-}
-
-/*
-** Code an OP_TableLock instruction for each table locked by the
-** statement (configured by calls to tdsqlite3TableLock()).
-*/
-static void codeTableLocks(Parse *pParse){
-  int i;
-  Vdbe *pVdbe; 
-
-  pVdbe = tdsqlite3GetVdbe(pParse);
-  assert( pVdbe!=0 ); /* tdsqlite3GetVdbe cannot fail: VDBE already allocated */
-
-  for(i=0; i<pParse->nTableLock; i++){
-    TableLock *p = &pParse->aTableLock[i];
-    int p1 = p->iDb;
-    tdsqlite3VdbeAddOp4(pVdbe, OP_TableLock, p1, p->iTab, p->isWriteLock,
-                      p->zLockName, P4_STATIC);
-  }
-}
-#else
-  #define codeTableLocks(x)
-#endif
-
-/*
-** Return TRUE if the given yDbMask object is empty - if it contains no
-** 1 bits.  This routine is used by the DbMaskAllZero() and DbMaskNotZero()
-** macros when SQLITE_MAX_ATTACHED is greater than 30.
-*/
-#if SQLITE_MAX_ATTACHED>30
-SQLITE_PRIVATE int tdsqlite3DbMaskAllZero(yDbMask m){
-  int i;
-  for(i=0; i<sizeof(yDbMask); i++) if( m[i] ) return 0;
-  return 1;
-}
-#endif
-
-/*
-** This routine is called after a single SQL statement has been
-** parsed and a VDBE program to execute that statement has been
-** prepared.  This routine puts the finishing touches on the
-** VDBE program and resets the pParse structure for the next
-** parse.
-**
-** Note that if an error occurred, it might be the case that
-** no VDBE code was generated.
-*/
-SQLITE_PRIVATE void tdsqlite3FinishCoding(Parse *pParse){
-  tdsqlite3 *db;
-  Vdbe *v;
-
-  assert( pParse->pToplevel==0 );
-  db = pParse->db;
-  if( pParse->nested ) return;
-  if( db->mallocFailed || pParse->nErr ){
-    if( pParse->rc==SQLITE_OK ) pParse->rc = SQLITE_ERROR;
-    return;
-  }
-
-  /* Begin by generating some termination code at the end of the
-  ** vdbe program
-  */
-  v = tdsqlite3GetVdbe(pParse);
-  assert( !pParse->isMultiWrite 
-       || tdsqlite3VdbeAssertMayAbort(v, pParse->mayAbort));
-  if( v ){
-    tdsqlite3VdbeAddOp0(v, OP_Halt);
-
-#if SQLITE_USER_AUTHENTICATION
-    if( pParse->nTableLock>0 && db->init.busy==0 ){
-      tdsqlite3UserAuthInit(db);
-      if( db->auth.authLevel<UAUTH_User ){
-        tdsqlite3ErrorMsg(pParse, "user not authenticated");
-        pParse->rc = SQLITE_AUTH_USER;
-        return;
-      }
-    }
-#endif
-
-    /* The cookie mask contains one bit for each database file open.
-    ** (Bit 0 is for main, bit 1 is for temp, and so forth.)  Bits are
-    ** set for each database that is used.  Generate code to start a
-    ** transaction on each used database and to verify the schema cookie
-    ** on each used database.
-    */
-    if( db->mallocFailed==0 
-     && (DbMaskNonZero(pParse->cookieMask) || pParse->pConstExpr)
-    ){
-      int iDb, i;
-      assert( tdsqlite3VdbeGetOp(v, 0)->opcode==OP_Init );
-      tdsqlite3VdbeJumpHere(v, 0);
-      for(iDb=0; iDb<db->nDb; iDb++){
-        Schema *pSchema;
-        if( DbMaskTest(pParse->cookieMask, iDb)==0 ) continue;
-        tdsqlite3VdbeUsesBtree(v, iDb);
-        pSchema = db->aDb[iDb].pSchema;
-        tdsqlite3VdbeAddOp4Int(v,
-          OP_Transaction,                    /* Opcode */
-          iDb,                               /* P1 */
-          DbMaskTest(pParse->writeMask,iDb), /* P2 */
-          pSchema->schema_cookie,            /* P3 */
-          pSchema->iGeneration               /* P4 */
-        );
-        if( db->init.busy==0 ) tdsqlite3VdbeChangeP5(v, 1);
-        VdbeComment((v,
-              "usesStmtJournal=%d", pParse->mayAbort && pParse->isMultiWrite));
-      }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-      for(i=0; i<pParse->nVtabLock; i++){
-        char *vtab = (char *)tdsqlite3GetVTable(db, pParse->apVtabLock[i]);
-        tdsqlite3VdbeAddOp4(v, OP_VBegin, 0, 0, 0, vtab, P4_VTAB);
-      }
-      pParse->nVtabLock = 0;
-#endif
-
-      /* Once all the cookies have been verified and transactions opened, 
-      ** obtain the required table-locks. This is a no-op unless the 
-      ** shared-cache feature is enabled.
-      */
-      codeTableLocks(pParse);
-
-      /* Initialize any AUTOINCREMENT data structures required.
-      */
-      tdsqlite3AutoincrementBegin(pParse);
-
-      /* Code constant expressions that where factored out of inner loops */
-      if( pParse->pConstExpr ){
-        ExprList *pEL = pParse->pConstExpr;
-        pParse->okConstFactor = 0;
-        for(i=0; i<pEL->nExpr; i++){
-          tdsqlite3ExprCode(pParse, pEL->a[i].pExpr, pEL->a[i].u.iConstExprReg);
-        }
-      }
-
-      /* Finally, jump back to the beginning of the executable code. */
-      tdsqlite3VdbeGoto(v, 1);
-    }
-  }
-
-
-  /* Get the VDBE program ready for execution
-  */
-  if( v && pParse->nErr==0 && !db->mallocFailed ){
-    /* A minimum of one cursor is required if autoincrement is used
-    *  See ticket [a696379c1f08866] */
-    assert( pParse->pAinc==0 || pParse->nTab>0 );
-    tdsqlite3VdbeMakeReady(v, pParse);
-    pParse->rc = SQLITE_DONE;
-  }else{
-    pParse->rc = SQLITE_ERROR;
-  }
-}
-
-/*
-** Run the parser and code generator recursively in order to generate
-** code for the SQL statement given onto the end of the pParse context
-** currently under construction.  When the parser is run recursively
-** this way, the final OP_Halt is not appended and other initialization
-** and finalization steps are omitted because those are handling by the
-** outermost parser.
-**
-** Not everything is nestable.  This facility is designed to permit
-** INSERT, UPDATE, and DELETE operations against SQLITE_MASTER.  Use
-** care if you decide to try to use this routine for some other purposes.
-*/
-SQLITE_PRIVATE void tdsqlite3NestedParse(Parse *pParse, const char *zFormat, ...){
-  va_list ap;
-  char *zSql;
-  char *zErrMsg = 0;
-  tdsqlite3 *db = pParse->db;
-  char saveBuf[PARSE_TAIL_SZ];
-
-  if( pParse->nErr ) return;
-  assert( pParse->nested<10 );  /* Nesting should only be of limited depth */
-  va_start(ap, zFormat);
-  zSql = tdsqlite3VMPrintf(db, zFormat, ap);
-  va_end(ap);
-  if( zSql==0 ){
-    /* This can result either from an OOM or because the formatted string
-    ** exceeds SQLITE_LIMIT_LENGTH.  In the latter case, we need to set
-    ** an error */
-    if( !db->mallocFailed ) pParse->rc = SQLITE_TOOBIG;
-    pParse->nErr++;
-    return;
-  }
-  pParse->nested++;
-  memcpy(saveBuf, PARSE_TAIL(pParse), PARSE_TAIL_SZ);
-  memset(PARSE_TAIL(pParse), 0, PARSE_TAIL_SZ);
-  tdsqlite3RunParser(pParse, zSql, &zErrMsg);
-  tdsqlite3DbFree(db, zErrMsg);
-  tdsqlite3DbFree(db, zSql);
-  memcpy(PARSE_TAIL(pParse), saveBuf, PARSE_TAIL_SZ);
-  pParse->nested--;
-}
-
-#if SQLITE_USER_AUTHENTICATION
-/*
-** Return TRUE if zTable is the name of the system table that stores the
-** list of users and their access credentials.
-*/
-SQLITE_PRIVATE int tdsqlite3UserAuthTable(const char *zTable){
-  return tdsqlite3_stricmp(zTable, "sqlite_user")==0;
-}
-#endif
-
-/*
-** Locate the in-memory structure that describes a particular database
-** table given the name of that table and (optionally) the name of the
-** database containing the table.  Return NULL if not found.
-**
-** If zDatabase is 0, all databases are searched for the table and the
-** first matching table is returned.  (No checking for duplicate table
-** names is done.)  The search order is TEMP first, then MAIN, then any
-** auxiliary databases added using the ATTACH command.
-**
-** See also tdsqlite3LocateTable().
-*/
-SQLITE_PRIVATE Table *tdsqlite3FindTable(tdsqlite3 *db, const char *zName, const char *zDatabase){
-  Table *p = 0;
-  int i;
-
-  /* All mutexes are required for schema access.  Make sure we hold them. */
-  assert( zDatabase!=0 || tdsqlite3BtreeHoldsAllMutexes(db) );
-#if SQLITE_USER_AUTHENTICATION
-  /* Only the admin user is allowed to know that the sqlite_user table
-  ** exists */
-  if( db->auth.authLevel<UAUTH_Admin && tdsqlite3UserAuthTable(zName)!=0 ){
-    return 0;
-  }
-#endif
-  while(1){
-    for(i=OMIT_TEMPDB; i<db->nDb; i++){
-      int j = (i<2) ? i^1 : i;   /* Search TEMP before MAIN */
-      if( zDatabase==0 || tdsqlite3StrICmp(zDatabase, db->aDb[j].zDbSName)==0 ){
-        assert( tdsqlite3SchemaMutexHeld(db, j, 0) );
-        p = tdsqlite3HashFind(&db->aDb[j].pSchema->tblHash, zName);
-        if( p ) return p;
-      }
-    }
-    /* Not found.  If the name we were looking for was temp.sqlite_master
-    ** then change the name to sqlite_temp_master and try again. */
-    if( tdsqlite3StrICmp(zName, MASTER_NAME)!=0 ) break;
-    if( tdsqlite3_stricmp(zDatabase, db->aDb[1].zDbSName)!=0 ) break;
-    zName = TEMP_MASTER_NAME;
-  }
-  return 0;
-}
-
-/*
-** Locate the in-memory structure that describes a particular database
-** table given the name of that table and (optionally) the name of the
-** database containing the table.  Return NULL if not found.  Also leave an
-** error message in pParse->zErrMsg.
-**
-** The difference between this routine and tdsqlite3FindTable() is that this
-** routine leaves an error message in pParse->zErrMsg where
-** tdsqlite3FindTable() does not.
-*/
-SQLITE_PRIVATE Table *tdsqlite3LocateTable(
-  Parse *pParse,         /* context in which to report errors */
-  u32 flags,             /* LOCATE_VIEW or LOCATE_NOERR */
-  const char *zName,     /* Name of the table we are looking for */
-  const char *zDbase     /* Name of the database.  Might be NULL */
-){
-  Table *p;
-  tdsqlite3 *db = pParse->db;
-
-  /* Read the database schema. If an error occurs, leave an error message
-  ** and code in pParse and return NULL. */
-  if( (db->mDbFlags & DBFLAG_SchemaKnownOk)==0 
-   && SQLITE_OK!=tdsqlite3ReadSchema(pParse)
-  ){
-    return 0;
-  }
-
-  p = tdsqlite3FindTable(db, zName, zDbase);
-  if( p==0 ){
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    /* If zName is the not the name of a table in the schema created using
-    ** CREATE, then check to see if it is the name of an virtual table that
-    ** can be an eponymous virtual table. */
-    if( pParse->disableVtab==0 ){
-      Module *pMod = (Module*)tdsqlite3HashFind(&db->aModule, zName);
-      if( pMod==0 && tdsqlite3_strnicmp(zName, "pragma_", 7)==0 ){
-        pMod = tdsqlite3PragmaVtabRegister(db, zName);
-      }
-      if( pMod && tdsqlite3VtabEponymousTableInit(pParse, pMod) ){
-        return pMod->pEpoTab;
-      }
-    }
-#endif
-    if( flags & LOCATE_NOERR ) return 0;
-    pParse->checkSchema = 1;
-  }else if( IsVirtual(p) && pParse->disableVtab ){
-    p = 0;
-  }
-
-  if( p==0 ){
-    const char *zMsg = flags & LOCATE_VIEW ? "no such view" : "no such table";
-    if( zDbase ){
-      tdsqlite3ErrorMsg(pParse, "%s: %s.%s", zMsg, zDbase, zName);
-    }else{
-      tdsqlite3ErrorMsg(pParse, "%s: %s", zMsg, zName);
-    }
-  }
-
-  return p;
-}
-
-/*
-** Locate the table identified by *p.
-**
-** This is a wrapper around tdsqlite3LocateTable(). The difference between
-** tdsqlite3LocateTable() and this function is that this function restricts
-** the search to schema (p->pSchema) if it is not NULL. p->pSchema may be
-** non-NULL if it is part of a view or trigger program definition. See
-** tdsqlite3FixSrcList() for details.
-*/
-SQLITE_PRIVATE Table *tdsqlite3LocateTableItem(
-  Parse *pParse, 
-  u32 flags,
-  struct SrcList_item *p
-){
-  const char *zDb;
-  assert( p->pSchema==0 || p->zDatabase==0 );
-  if( p->pSchema ){
-    int iDb = tdsqlite3SchemaToIndex(pParse->db, p->pSchema);
-    zDb = pParse->db->aDb[iDb].zDbSName;
-  }else{
-    zDb = p->zDatabase;
-  }
-  return tdsqlite3LocateTable(pParse, flags, p->zName, zDb);
-}
-
-/*
-** Locate the in-memory structure that describes 
-** a particular index given the name of that index
-** and the name of the database that contains the index.
-** Return NULL if not found.
-**
-** If zDatabase is 0, all databases are searched for the
-** table and the first matching index is returned.  (No checking
-** for duplicate index names is done.)  The search order is
-** TEMP first, then MAIN, then any auxiliary databases added
-** using the ATTACH command.
-*/
-SQLITE_PRIVATE Index *tdsqlite3FindIndex(tdsqlite3 *db, const char *zName, const char *zDb){
-  Index *p = 0;
-  int i;
-  /* All mutexes are required for schema access.  Make sure we hold them. */
-  assert( zDb!=0 || tdsqlite3BtreeHoldsAllMutexes(db) );
-  for(i=OMIT_TEMPDB; i<db->nDb; i++){
-    int j = (i<2) ? i^1 : i;  /* Search TEMP before MAIN */
-    Schema *pSchema = db->aDb[j].pSchema;
-    assert( pSchema );
-    if( zDb && tdsqlite3StrICmp(zDb, db->aDb[j].zDbSName) ) continue;
-    assert( tdsqlite3SchemaMutexHeld(db, j, 0) );
-    p = tdsqlite3HashFind(&pSchema->idxHash, zName);
-    if( p ) break;
-  }
-  return p;
-}
-
-/*
-** Reclaim the memory used by an index
-*/
-SQLITE_PRIVATE void tdsqlite3FreeIndex(tdsqlite3 *db, Index *p){
-#ifndef SQLITE_OMIT_ANALYZE
-  tdsqlite3DeleteIndexSamples(db, p);
-#endif
-  tdsqlite3ExprDelete(db, p->pPartIdxWhere);
-  tdsqlite3ExprListDelete(db, p->aColExpr);
-  tdsqlite3DbFree(db, p->zColAff);
-  if( p->isResized ) tdsqlite3DbFree(db, (void *)p->azColl);
-#ifdef SQLITE_ENABLE_STAT4
-  tdsqlite3_free(p->aiRowEst);
-#endif
-  tdsqlite3DbFree(db, p);
-}
-
-/*
-** For the index called zIdxName which is found in the database iDb,
-** unlike that index from its Table then remove the index from
-** the index hash table and free all memory structures associated
-** with the index.
-*/
-SQLITE_PRIVATE void tdsqlite3UnlinkAndDeleteIndex(tdsqlite3 *db, int iDb, const char *zIdxName){
-  Index *pIndex;
-  Hash *pHash;
-
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  pHash = &db->aDb[iDb].pSchema->idxHash;
-  pIndex = tdsqlite3HashInsert(pHash, zIdxName, 0);
-  if( ALWAYS(pIndex) ){
-    if( pIndex->pTable->pIndex==pIndex ){
-      pIndex->pTable->pIndex = pIndex->pNext;
-    }else{
-      Index *p;
-      /* Justification of ALWAYS();  The index must be on the list of
-      ** indices. */
-      p = pIndex->pTable->pIndex;
-      while( ALWAYS(p) && p->pNext!=pIndex ){ p = p->pNext; }
-      if( ALWAYS(p && p->pNext==pIndex) ){
-        p->pNext = pIndex->pNext;
-      }
-    }
-    tdsqlite3FreeIndex(db, pIndex);
-  }
-  db->mDbFlags |= DBFLAG_SchemaChange;
-}
-
-/*
-** Look through the list of open database files in db->aDb[] and if
-** any have been closed, remove them from the list.  Reallocate the
-** db->aDb[] structure to a smaller size, if possible.
-**
-** Entry 0 (the "main" database) and entry 1 (the "temp" database)
-** are never candidates for being collapsed.
-*/
-SQLITE_PRIVATE void tdsqlite3CollapseDatabaseArray(tdsqlite3 *db){
-  int i, j;
-  for(i=j=2; i<db->nDb; i++){
-    struct Db *pDb = &db->aDb[i];
-    if( pDb->pBt==0 ){
-      tdsqlite3DbFree(db, pDb->zDbSName);
-      pDb->zDbSName = 0;
-      continue;
-    }
-    if( j<i ){
-      db->aDb[j] = db->aDb[i];
-    }
-    j++;
-  }
-  db->nDb = j;
-  if( db->nDb<=2 && db->aDb!=db->aDbStatic ){
-    memcpy(db->aDbStatic, db->aDb, 2*sizeof(db->aDb[0]));
-    tdsqlite3DbFree(db, db->aDb);
-    db->aDb = db->aDbStatic;
-  }
-}
-
-/*
-** Reset the schema for the database at index iDb.  Also reset the
-** TEMP schema.  The reset is deferred if db->nSchemaLock is not zero.
-** Deferred resets may be run by calling with iDb<0.
-*/
-SQLITE_PRIVATE void tdsqlite3ResetOneSchema(tdsqlite3 *db, int iDb){
-  int i;
-  assert( iDb<db->nDb );
-
-  if( iDb>=0 ){
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    DbSetProperty(db, iDb, DB_ResetWanted);
-    DbSetProperty(db, 1, DB_ResetWanted);
-    db->mDbFlags &= ~DBFLAG_SchemaKnownOk;
-  }
-
-  if( db->nSchemaLock==0 ){
-    for(i=0; i<db->nDb; i++){
-      if( DbHasProperty(db, i, DB_ResetWanted) ){
-        tdsqlite3SchemaClear(db->aDb[i].pSchema);
-      }
-    }
-  }
-}
-
-/*
-** Erase all schema information from all attached databases (including
-** "main" and "temp") for a single database connection.
-*/
-SQLITE_PRIVATE void tdsqlite3ResetAllSchemasOfConnection(tdsqlite3 *db){
-  int i;
-  tdsqlite3BtreeEnterAll(db);
-  for(i=0; i<db->nDb; i++){
-    Db *pDb = &db->aDb[i];
-    if( pDb->pSchema ){
-      if( db->nSchemaLock==0 ){
-        tdsqlite3SchemaClear(pDb->pSchema);
-      }else{
-        DbSetProperty(db, i, DB_ResetWanted);
-      }
-    }
-  }
-  db->mDbFlags &= ~(DBFLAG_SchemaChange|DBFLAG_SchemaKnownOk);
-  tdsqlite3VtabUnlockList(db);
-  tdsqlite3BtreeLeaveAll(db);
-  if( db->nSchemaLock==0 ){
-    tdsqlite3CollapseDatabaseArray(db);
-  }
-}
-
-/*
-** This routine is called when a commit occurs.
-*/
-SQLITE_PRIVATE void tdsqlite3CommitInternalChanges(tdsqlite3 *db){
-  db->mDbFlags &= ~DBFLAG_SchemaChange;
-}
-
-/*
-** Delete memory allocated for the column names of a table or view (the
-** Table.aCol[] array).
-*/
-SQLITE_PRIVATE void tdsqlite3DeleteColumnNames(tdsqlite3 *db, Table *pTable){
-  int i;
-  Column *pCol;
-  assert( pTable!=0 );
-  if( (pCol = pTable->aCol)!=0 ){
-    for(i=0; i<pTable->nCol; i++, pCol++){
-      tdsqlite3DbFree(db, pCol->zName);
-      tdsqlite3ExprDelete(db, pCol->pDflt);
-      tdsqlite3DbFree(db, pCol->zColl);
-    }
-    tdsqlite3DbFree(db, pTable->aCol);
-  }
-}
-
-/*
-** Remove the memory data structures associated with the given
-** Table.  No changes are made to disk by this routine.
-**
-** This routine just deletes the data structure.  It does not unlink
-** the table data structure from the hash table.  But it does destroy
-** memory structures of the indices and foreign keys associated with 
-** the table.
-**
-** The db parameter is optional.  It is needed if the Table object 
-** contains lookaside memory.  (Table objects in the schema do not use
-** lookaside memory, but some ephemeral Table objects do.)  Or the
-** db parameter can be used with db->pnBytesFreed to measure the memory
-** used by the Table object.
-*/
-static void SQLITE_NOINLINE deleteTable(tdsqlite3 *db, Table *pTable){
-  Index *pIndex, *pNext;
-
-#ifdef SQLITE_DEBUG
-  /* Record the number of outstanding lookaside allocations in schema Tables
-  ** prior to doing any free() operations. Since schema Tables do not use
-  ** lookaside, this number should not change. 
-  **
-  ** If malloc has already failed, it may be that it failed while allocating
-  ** a Table object that was going to be marked ephemeral. So do not check
-  ** that no lookaside memory is used in this case either. */
-  int nLookaside = 0;
-  if( db && !db->mallocFailed && (pTable->tabFlags & TF_Ephemeral)==0 ){
-    nLookaside = tdsqlite3LookasideUsed(db, 0);
-  }
-#endif
-
-  /* Delete all indices associated with this table. */
-  for(pIndex = pTable->pIndex; pIndex; pIndex=pNext){
-    pNext = pIndex->pNext;
-    assert( pIndex->pSchema==pTable->pSchema
-         || (IsVirtual(pTable) && pIndex->idxType!=SQLITE_IDXTYPE_APPDEF) );
-    if( (db==0 || db->pnBytesFreed==0) && !IsVirtual(pTable) ){
-      char *zName = pIndex->zName; 
-      TESTONLY ( Index *pOld = ) tdsqlite3HashInsert(
-         &pIndex->pSchema->idxHash, zName, 0
-      );
-      assert( db==0 || tdsqlite3SchemaMutexHeld(db, 0, pIndex->pSchema) );
-      assert( pOld==pIndex || pOld==0 );
-    }
-    tdsqlite3FreeIndex(db, pIndex);
-  }
-
-  /* Delete any foreign keys attached to this table. */
-  tdsqlite3FkDelete(db, pTable);
-
-  /* Delete the Table structure itself.
-  */
-  tdsqlite3DeleteColumnNames(db, pTable);
-  tdsqlite3DbFree(db, pTable->zName);
-  tdsqlite3DbFree(db, pTable->zColAff);
-  tdsqlite3SelectDelete(db, pTable->pSelect);
-  tdsqlite3ExprListDelete(db, pTable->pCheck);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  tdsqlite3VtabClear(db, pTable);
-#endif
-  tdsqlite3DbFree(db, pTable);
-
-  /* Verify that no lookaside memory was used by schema tables */
-  assert( nLookaside==0 || nLookaside==tdsqlite3LookasideUsed(db,0) );
-}
-SQLITE_PRIVATE void tdsqlite3DeleteTable(tdsqlite3 *db, Table *pTable){
-  /* Do not delete the table until the reference count reaches zero. */
-  if( !pTable ) return;
-  if( ((!db || db->pnBytesFreed==0) && (--pTable->nTabRef)>0) ) return;
-  deleteTable(db, pTable);
-}
-
-
-/*
-** Unlink the given table from the hash tables and the delete the
-** table structure with all its indices and foreign keys.
-*/
-SQLITE_PRIVATE void tdsqlite3UnlinkAndDeleteTable(tdsqlite3 *db, int iDb, const char *zTabName){
-  Table *p;
-  Db *pDb;
-
-  assert( db!=0 );
-  assert( iDb>=0 && iDb<db->nDb );
-  assert( zTabName );
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  testcase( zTabName[0]==0 );  /* Zero-length table names are allowed */
-  pDb = &db->aDb[iDb];
-  p = tdsqlite3HashInsert(&pDb->pSchema->tblHash, zTabName, 0);
-  tdsqlite3DeleteTable(db, p);
-  db->mDbFlags |= DBFLAG_SchemaChange;
-}
-
-/*
-** Given a token, return a string that consists of the text of that
-** token.  Space to hold the returned string
-** is obtained from sqliteMalloc() and must be freed by the calling
-** function.
-**
-** Any quotation marks (ex:  "name", 'name', [name], or `name`) that
-** surround the body of the token are removed.
-**
-** Tokens are often just pointers into the original SQL text and so
-** are not \000 terminated and are not persistent.  The returned string
-** is \000 terminated and is persistent.
-*/
-SQLITE_PRIVATE char *tdsqlite3NameFromToken(tdsqlite3 *db, Token *pName){
-  char *zName;
-  if( pName ){
-    zName = tdsqlite3DbStrNDup(db, (char*)pName->z, pName->n);
-    tdsqlite3Dequote(zName);
-  }else{
-    zName = 0;
-  }
-  return zName;
-}
-
-/*
-** Open the sqlite_master table stored in database number iDb for
-** writing. The table is opened using cursor 0.
-*/
-SQLITE_PRIVATE void tdsqlite3OpenMasterTable(Parse *p, int iDb){
-  Vdbe *v = tdsqlite3GetVdbe(p);
-  tdsqlite3TableLock(p, iDb, MASTER_ROOT, 1, MASTER_NAME);
-  tdsqlite3VdbeAddOp4Int(v, OP_OpenWrite, 0, MASTER_ROOT, iDb, 5);
-  if( p->nTab==0 ){
-    p->nTab = 1;
-  }
-}
-
-/*
-** Parameter zName points to a nul-terminated buffer containing the name
-** of a database ("main", "temp" or the name of an attached db). This
-** function returns the index of the named database in db->aDb[], or
-** -1 if the named db cannot be found.
-*/
-SQLITE_PRIVATE int tdsqlite3FindDbName(tdsqlite3 *db, const char *zName){
-  int i = -1;         /* Database number */
-  if( zName ){
-    Db *pDb;
-    for(i=(db->nDb-1), pDb=&db->aDb[i]; i>=0; i--, pDb--){
-      if( 0==tdsqlite3_stricmp(pDb->zDbSName, zName) ) break;
-      /* "main" is always an acceptable alias for the primary database
-      ** even if it has been renamed using SQLITE_DBCONFIG_MAINDBNAME. */
-      if( i==0 && 0==tdsqlite3_stricmp("main", zName) ) break;
-    }
-  }
-  return i;
-}
-
-/*
-** The token *pName contains the name of a database (either "main" or
-** "temp" or the name of an attached db). This routine returns the
-** index of the named database in db->aDb[], or -1 if the named db 
-** does not exist.
-*/
-SQLITE_PRIVATE int tdsqlite3FindDb(tdsqlite3 *db, Token *pName){
-  int i;                               /* Database number */
-  char *zName;                         /* Name we are searching for */
-  zName = tdsqlite3NameFromToken(db, pName);
-  i = tdsqlite3FindDbName(db, zName);
-  tdsqlite3DbFree(db, zName);
-  return i;
-}
-
-/* The table or view or trigger name is passed to this routine via tokens
-** pName1 and pName2. If the table name was fully qualified, for example:
-**
-** CREATE TABLE xxx.yyy (...);
-** 
-** Then pName1 is set to "xxx" and pName2 "yyy". On the other hand if
-** the table name is not fully qualified, i.e.:
-**
-** CREATE TABLE yyy(...);
-**
-** Then pName1 is set to "yyy" and pName2 is "".
-**
-** This routine sets the *ppUnqual pointer to point at the token (pName1 or
-** pName2) that stores the unqualified table name.  The index of the
-** database "xxx" is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3TwoPartName(
-  Parse *pParse,      /* Parsing and code generating context */
-  Token *pName1,      /* The "xxx" in the name "xxx.yyy" or "xxx" */
-  Token *pName2,      /* The "yyy" in the name "xxx.yyy" */
-  Token **pUnqual     /* Write the unqualified object name here */
-){
-  int iDb;                    /* Database holding the object */
-  tdsqlite3 *db = pParse->db;
-
-  assert( pName2!=0 );
-  if( pName2->n>0 ){
-    if( db->init.busy ) {
-      tdsqlite3ErrorMsg(pParse, "corrupt database");
-      return -1;
-    }
-    *pUnqual = pName2;
-    iDb = tdsqlite3FindDb(db, pName1);
-    if( iDb<0 ){
-      tdsqlite3ErrorMsg(pParse, "unknown database %T", pName1);
-      return -1;
-    }
-  }else{
-    assert( db->init.iDb==0 || db->init.busy || IN_RENAME_OBJECT
-             || (db->mDbFlags & DBFLAG_Vacuum)!=0);
-    iDb = db->init.iDb;
-    *pUnqual = pName1;
-  }
-  return iDb;
-}
-
-/*
-** True if PRAGMA writable_schema is ON
-*/
-SQLITE_PRIVATE int tdsqlite3WritableSchema(tdsqlite3 *db){
-  testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==0 );
-  testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
-               SQLITE_WriteSchema );
-  testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
-               SQLITE_Defensive );
-  testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
-               (SQLITE_WriteSchema|SQLITE_Defensive) );
-  return (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==SQLITE_WriteSchema;
-}
-
-/*
-** This routine is used to check if the UTF-8 string zName is a legal
-** unqualified name for a new schema object (table, index, view or
-** trigger). All names are legal except those that begin with the string
-** "sqlite_" (in upper, lower or mixed case). This portion of the namespace
-** is reserved for internal use.
-**
-** When parsing the sqlite_master table, this routine also checks to
-** make sure the "type", "name", and "tbl_name" columns are consistent
-** with the SQL.
-*/
-SQLITE_PRIVATE int tdsqlite3CheckObjectName(
-  Parse *pParse,            /* Parsing context */
-  const char *zName,        /* Name of the object to check */
-  const char *zType,        /* Type of this object */
-  const char *zTblName      /* Parent table name for triggers and indexes */
-){
-  tdsqlite3 *db = pParse->db;
-  if( tdsqlite3WritableSchema(db) || db->init.imposterTable ){
-    /* Skip these error checks for writable_schema=ON */
-    return SQLITE_OK;
-  }
-  if( db->init.busy ){
-    if( tdsqlite3_stricmp(zType, db->init.azInit[0])
-     || tdsqlite3_stricmp(zName, db->init.azInit[1])
-     || tdsqlite3_stricmp(zTblName, db->init.azInit[2])
-    ){
-      if( tdsqlite3Config.bExtraSchemaChecks ){
-        tdsqlite3ErrorMsg(pParse, ""); /* corruptSchema() will supply the error */
-        return SQLITE_ERROR;
-      }
-    }
-  }else{
-    if( (pParse->nested==0 && 0==tdsqlite3StrNICmp(zName, "sqlite_", 7))
-     || (tdsqlite3ReadOnlyShadowTables(db) && tdsqlite3ShadowTableName(db, zName))
-    ){
-      tdsqlite3ErrorMsg(pParse, "object name reserved for internal use: %s",
-                      zName);
-      return SQLITE_ERROR;
-    }
-
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Return the PRIMARY KEY index of a table
-*/
-SQLITE_PRIVATE Index *tdsqlite3PrimaryKeyIndex(Table *pTab){
-  Index *p;
-  for(p=pTab->pIndex; p && !IsPrimaryKeyIndex(p); p=p->pNext){}
-  return p;
-}
-
-/*
-** Convert an table column number into a index column number.  That is,
-** for the column iCol in the table (as defined by the CREATE TABLE statement)
-** find the (first) offset of that column in index pIdx.  Or return -1
-** if column iCol is not used in index pIdx.
-*/
-SQLITE_PRIVATE i16 tdsqlite3TableColumnToIndex(Index *pIdx, i16 iCol){
-  int i;
-  for(i=0; i<pIdx->nColumn; i++){
-    if( iCol==pIdx->aiColumn[i] ) return i;
-  }
-  return -1;
-}
-
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-/* Convert a storage column number into a table column number.
-**
-** The storage column number (0,1,2,....) is the index of the value
-** as it appears in the record on disk.  The true column number
-** is the index (0,1,2,...) of the column in the CREATE TABLE statement.
-**
-** The storage column number is less than the table column number if
-** and only there are VIRTUAL columns to the left.
-**
-** If SQLITE_OMIT_GENERATED_COLUMNS, this routine is a no-op macro.
-*/
-SQLITE_PRIVATE i16 tdsqlite3StorageColumnToTable(Table *pTab, i16 iCol){
-  if( pTab->tabFlags & TF_HasVirtual ){
-    int i;
-    for(i=0; i<=iCol; i++){
-      if( pTab->aCol[i].colFlags & COLFLAG_VIRTUAL ) iCol++;
-    }
-  }
-  return iCol;
-}
-#endif
-
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-/* Convert a table column number into a storage column number.
-**
-** The storage column number (0,1,2,....) is the index of the value
-** as it appears in the record on disk.  Or, if the input column is
-** the N-th virtual column (zero-based) then the storage number is
-** the number of non-virtual columns in the table plus N.  
-**
-** The true column number is the index (0,1,2,...) of the column in
-** the CREATE TABLE statement.
-**
-** If the input column is a VIRTUAL column, then it should not appear
-** in storage.  But the value sometimes is cached in registers that
-** follow the range of registers used to construct storage.  This
-** avoids computing the same VIRTUAL column multiple times, and provides
-** values for use by OP_Param opcodes in triggers.  Hence, if the
-** input column is a VIRTUAL table, put it after all the other columns.
-**
-** In the following, N means "normal column", S means STORED, and
-** V means VIRTUAL.  Suppose the CREATE TABLE has columns like this:
-**
-**        CREATE TABLE ex(N,S,V,N,S,V,N,S,V);
-**                     -- 0 1 2 3 4 5 6 7 8
-**
-** Then the mapping from this function is as follows:
-**
-**    INPUTS:     0 1 2 3 4 5 6 7 8
-**    OUTPUTS:    0 1 6 2 3 7 4 5 8
-**
-** So, in other words, this routine shifts all the virtual columns to
-** the end.
-**
-** If SQLITE_OMIT_GENERATED_COLUMNS then there are no virtual columns and
-** this routine is a no-op macro.  If the pTab does not have any virtual
-** columns, then this routine is no-op that always return iCol.  If iCol
-** is negative (indicating the ROWID column) then this routine return iCol.
-*/
-SQLITE_PRIVATE i16 tdsqlite3TableColumnToStorage(Table *pTab, i16 iCol){
-  int i;
-  i16 n;
-  assert( iCol<pTab->nCol );
-  if( (pTab->tabFlags & TF_HasVirtual)==0 || iCol<0 ) return iCol;
-  for(i=0, n=0; i<iCol; i++){
-    if( (pTab->aCol[i].colFlags & COLFLAG_VIRTUAL)==0 ) n++;
-  }
-  if( pTab->aCol[i].colFlags & COLFLAG_VIRTUAL ){
-    /* iCol is a virtual column itself */
-    return pTab->nNVCol + i - n;
-  }else{
-    /* iCol is a normal or stored column */
-    return n;
-  }
-}
-#endif
-
-/*
-** Begin constructing a new table representation in memory.  This is
-** the first of several action routines that get called in response
-** to a CREATE TABLE statement.  In particular, this routine is called
-** after seeing tokens "CREATE" and "TABLE" and the table name. The isTemp
-** flag is true if the table should be stored in the auxiliary database
-** file instead of in the main database file.  This is normally the case
-** when the "TEMP" or "TEMPORARY" keyword occurs in between
-** CREATE and TABLE.
-**
-** The new table record is initialized and put in pParse->pNewTable.
-** As more of the CREATE TABLE statement is parsed, additional action
-** routines will be called to add more information to this record.
-** At the end of the CREATE TABLE statement, the tdsqlite3EndTable() routine
-** is called to complete the construction of the new table record.
-*/
-SQLITE_PRIVATE void tdsqlite3StartTable(
-  Parse *pParse,   /* Parser context */
-  Token *pName1,   /* First part of the name of the table or view */
-  Token *pName2,   /* Second part of the name of the table or view */
-  int isTemp,      /* True if this is a TEMP table */
-  int isView,      /* True if this is a VIEW */
-  int isVirtual,   /* True if this is a VIRTUAL table */
-  int noErr        /* Do nothing if table already exists */
-){
-  Table *pTable;
-  char *zName = 0; /* The name of the new table */
-  tdsqlite3 *db = pParse->db;
-  Vdbe *v;
-  int iDb;         /* Database number to create the table in */
-  Token *pName;    /* Unqualified name of the table to create */
-
-  if( db->init.busy && db->init.newTnum==1 ){
-    /* Special case:  Parsing the sqlite_master or sqlite_temp_master schema */
-    iDb = db->init.iDb;
-    zName = tdsqlite3DbStrDup(db, SCHEMA_TABLE(iDb));
-    pName = pName1;
-  }else{
-    /* The common case */
-    iDb = tdsqlite3TwoPartName(pParse, pName1, pName2, &pName);
-    if( iDb<0 ) return;
-    if( !OMIT_TEMPDB && isTemp && pName2->n>0 && iDb!=1 ){
-      /* If creating a temp table, the name may not be qualified. Unless 
-      ** the database name is "temp" anyway.  */
-      tdsqlite3ErrorMsg(pParse, "temporary table name must be unqualified");
-      return;
-    }
-    if( !OMIT_TEMPDB && isTemp ) iDb = 1;
-    zName = tdsqlite3NameFromToken(db, pName);
-    if( IN_RENAME_OBJECT ){
-      tdsqlite3RenameTokenMap(pParse, (void*)zName, pName);
-    }
-  }
-  pParse->sNameToken = *pName;
-  if( zName==0 ) return;
-  if( tdsqlite3CheckObjectName(pParse, zName, isView?"view":"table", zName) ){
-    goto begin_table_error;
-  }
-  if( db->init.iDb==1 ) isTemp = 1;
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  assert( isTemp==0 || isTemp==1 );
-  assert( isView==0 || isView==1 );
-  {
-    static const u8 aCode[] = {
-       SQLITE_CREATE_TABLE,
-       SQLITE_CREATE_TEMP_TABLE,
-       SQLITE_CREATE_VIEW,
-       SQLITE_CREATE_TEMP_VIEW
-    };
-    char *zDb = db->aDb[iDb].zDbSName;
-    if( tdsqlite3AuthCheck(pParse, SQLITE_INSERT, SCHEMA_TABLE(isTemp), 0, zDb) ){
-      goto begin_table_error;
-    }
-    if( !isVirtual && tdsqlite3AuthCheck(pParse, (int)aCode[isTemp+2*isView],
-                                       zName, 0, zDb) ){
-      goto begin_table_error;
-    }
-  }
-#endif
-
-  /* Make sure the new table name does not collide with an existing
-  ** index or table name in the same database.  Issue an error message if
-  ** it does. The exception is if the statement being parsed was passed
-  ** to an tdsqlite3_declare_vtab() call. In that case only the column names
-  ** and types will be used, so there is no need to test for namespace
-  ** collisions.
-  */
-  if( !IN_SPECIAL_PARSE ){
-    char *zDb = db->aDb[iDb].zDbSName;
-    if( SQLITE_OK!=tdsqlite3ReadSchema(pParse) ){
-      goto begin_table_error;
-    }
-    pTable = tdsqlite3FindTable(db, zName, zDb);
-    if( pTable ){
-      if( !noErr ){
-        tdsqlite3ErrorMsg(pParse, "table %T already exists", pName);
-      }else{
-        assert( !db->init.busy || CORRUPT_DB );
-        tdsqlite3CodeVerifySchema(pParse, iDb);
-      }
-      goto begin_table_error;
-    }
-    if( tdsqlite3FindIndex(db, zName, zDb)!=0 ){
-      tdsqlite3ErrorMsg(pParse, "there is already an index named %s", zName);
-      goto begin_table_error;
-    }
-  }
-
-  pTable = tdsqlite3DbMallocZero(db, sizeof(Table));
-  if( pTable==0 ){
-    assert( db->mallocFailed );
-    pParse->rc = SQLITE_NOMEM_BKPT;
-    pParse->nErr++;
-    goto begin_table_error;
-  }
-  pTable->zName = zName;
-  pTable->iPKey = -1;
-  pTable->pSchema = db->aDb[iDb].pSchema;
-  pTable->nTabRef = 1;
-#ifdef SQLITE_DEFAULT_ROWEST
-  pTable->nRowLogEst = tdsqlite3LogEst(SQLITE_DEFAULT_ROWEST);
-#else
-  pTable->nRowLogEst = 200; assert( 200==tdsqlite3LogEst(1048576) );
-#endif
-  assert( pParse->pNewTable==0 );
-  pParse->pNewTable = pTable;
-
-  /* If this is the magic sqlite_sequence table used by autoincrement,
-  ** then record a pointer to this table in the main database structure
-  ** so that INSERT can find the table easily.
-  */
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-  if( !pParse->nested && strcmp(zName, "sqlite_sequence")==0 ){
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    pTable->pSchema->pSeqTab = pTable;
-  }
-#endif
-
-  /* Begin generating the code that will insert the table record into
-  ** the SQLITE_MASTER table.  Note in particular that we must go ahead
-  ** and allocate the record number for the table entry now.  Before any
-  ** PRIMARY KEY or UNIQUE keywords are parsed.  Those keywords will cause
-  ** indices to be created and the table record must come before the 
-  ** indices.  Hence, the record number for the table must be allocated
-  ** now.
-  */
-  if( !db->init.busy && (v = tdsqlite3GetVdbe(pParse))!=0 ){
-    int addr1;
-    int fileFormat;
-    int reg1, reg2, reg3;
-    /* nullRow[] is an OP_Record encoding of a row containing 5 NULLs */
-    static const char nullRow[] = { 6, 0, 0, 0, 0, 0 };
-    tdsqlite3BeginWriteOperation(pParse, 1, iDb);
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    if( isVirtual ){
-      tdsqlite3VdbeAddOp0(v, OP_VBegin);
-    }
-#endif
-
-    /* If the file format and encoding in the database have not been set, 
-    ** set them now.
-    */
-    reg1 = pParse->regRowid = ++pParse->nMem;
-    reg2 = pParse->regRoot = ++pParse->nMem;
-    reg3 = ++pParse->nMem;
-    tdsqlite3VdbeAddOp3(v, OP_ReadCookie, iDb, reg3, BTREE_FILE_FORMAT);
-    tdsqlite3VdbeUsesBtree(v, iDb);
-    addr1 = tdsqlite3VdbeAddOp1(v, OP_If, reg3); VdbeCoverage(v);
-    fileFormat = (db->flags & SQLITE_LegacyFileFmt)!=0 ?
-                  1 : SQLITE_MAX_FILE_FORMAT;
-    tdsqlite3VdbeAddOp3(v, OP_SetCookie, iDb, BTREE_FILE_FORMAT, fileFormat);
-    tdsqlite3VdbeAddOp3(v, OP_SetCookie, iDb, BTREE_TEXT_ENCODING, ENC(db));
-    tdsqlite3VdbeJumpHere(v, addr1);
-
-    /* This just creates a place-holder record in the sqlite_master table.
-    ** The record created does not contain anything yet.  It will be replaced
-    ** by the real entry in code generated at tdsqlite3EndTable().
-    **
-    ** The rowid for the new entry is left in register pParse->regRowid.
-    ** The root page number of the new table is left in reg pParse->regRoot.
-    ** The rowid and root page number values are needed by the code that
-    ** tdsqlite3EndTable will generate.
-    */
-#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_VIRTUALTABLE)
-    if( isView || isVirtual ){
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, reg2);
-    }else
-#endif
-    {
-      pParse->addrCrTab =
-         tdsqlite3VdbeAddOp3(v, OP_CreateBtree, iDb, reg2, BTREE_INTKEY);
-    }
-    tdsqlite3OpenMasterTable(pParse, iDb);
-    tdsqlite3VdbeAddOp2(v, OP_NewRowid, 0, reg1);
-    tdsqlite3VdbeAddOp4(v, OP_Blob, 6, reg3, 0, nullRow, P4_STATIC);
-    tdsqlite3VdbeAddOp3(v, OP_Insert, 0, reg3, reg1);
-    tdsqlite3VdbeChangeP5(v, OPFLAG_APPEND);
-    tdsqlite3VdbeAddOp0(v, OP_Close);
-  }
-
-  /* Normal (non-error) return. */
-  return;
-
-  /* If an error occurs, we jump here */
-begin_table_error:
-  tdsqlite3DbFree(db, zName);
-  return;
-}
-
-/* Set properties of a table column based on the (magical)
-** name of the column.
-*/
-#if SQLITE_ENABLE_HIDDEN_COLUMNS
-SQLITE_PRIVATE void tdsqlite3ColumnPropertiesFromName(Table *pTab, Column *pCol){
-  if( tdsqlite3_strnicmp(pCol->zName, "__hidden__", 10)==0 ){
-    pCol->colFlags |= COLFLAG_HIDDEN;
-  }else if( pTab && pCol!=pTab->aCol && (pCol[-1].colFlags & COLFLAG_HIDDEN) ){
-    pTab->tabFlags |= TF_OOOHidden;
-  }
-}
-#endif
-
-
-/*
-** Add a new column to the table currently being constructed.
-**
-** The parser calls this routine once for each column declaration
-** in a CREATE TABLE statement.  tdsqlite3StartTable() gets called
-** first to get things going.  Then this routine is called for each
-** column.
-*/
-SQLITE_PRIVATE void tdsqlite3AddColumn(Parse *pParse, Token *pName, Token *pType){
-  Table *p;
-  int i;
-  char *z;
-  char *zType;
-  Column *pCol;
-  tdsqlite3 *db = pParse->db;
-  if( (p = pParse->pNewTable)==0 ) return;
-  if( p->nCol+1>db->aLimit[SQLITE_LIMIT_COLUMN] ){
-    tdsqlite3ErrorMsg(pParse, "too many columns on %s", p->zName);
-    return;
-  }
-  z = tdsqlite3DbMallocRaw(db, pName->n + pType->n + 2);
-  if( z==0 ) return;
-  if( IN_RENAME_OBJECT ) tdsqlite3RenameTokenMap(pParse, (void*)z, pName);
-  memcpy(z, pName->z, pName->n);
-  z[pName->n] = 0;
-  tdsqlite3Dequote(z);
-  for(i=0; i<p->nCol; i++){
-    if( tdsqlite3_stricmp(z, p->aCol[i].zName)==0 ){
-      tdsqlite3ErrorMsg(pParse, "duplicate column name: %s", z);
-      tdsqlite3DbFree(db, z);
-      return;
-    }
-  }
-  if( (p->nCol & 0x7)==0 ){
-    Column *aNew;
-    aNew = tdsqlite3DbRealloc(db,p->aCol,(p->nCol+8)*sizeof(p->aCol[0]));
-    if( aNew==0 ){
-      tdsqlite3DbFree(db, z);
-      return;
-    }
-    p->aCol = aNew;
-  }
-  pCol = &p->aCol[p->nCol];
-  memset(pCol, 0, sizeof(p->aCol[0]));
-  pCol->zName = z;
-  tdsqlite3ColumnPropertiesFromName(p, pCol);
- 
-  if( pType->n==0 ){
-    /* If there is no type specified, columns have the default affinity
-    ** 'BLOB' with a default size of 4 bytes. */
-    pCol->affinity = SQLITE_AFF_BLOB;
-    pCol->szEst = 1;
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-    if( 4>=tdsqlite3GlobalConfig.szSorterRef ){
-      pCol->colFlags |= COLFLAG_SORTERREF;
-    }
-#endif
-  }else{
-    zType = z + tdsqlite3Strlen30(z) + 1;
-    memcpy(zType, pType->z, pType->n);
-    zType[pType->n] = 0;
-    tdsqlite3Dequote(zType);
-    pCol->affinity = tdsqlite3AffinityType(zType, pCol);
-    pCol->colFlags |= COLFLAG_HASTYPE;
-  }
-  p->nCol++;
-  p->nNVCol++;
-  pParse->constraintName.n = 0;
-}
-
-/*
-** This routine is called by the parser while in the middle of
-** parsing a CREATE TABLE statement.  A "NOT NULL" constraint has
-** been seen on a column.  This routine sets the notNull flag on
-** the column currently under construction.
-*/
-SQLITE_PRIVATE void tdsqlite3AddNotNull(Parse *pParse, int onError){
-  Table *p;
-  Column *pCol;
-  p = pParse->pNewTable;
-  if( p==0 || NEVER(p->nCol<1) ) return;
-  pCol = &p->aCol[p->nCol-1];
-  pCol->notNull = (u8)onError;
-  p->tabFlags |= TF_HasNotNull;
-
-  /* Set the uniqNotNull flag on any UNIQUE or PK indexes already created
-  ** on this column.  */
-  if( pCol->colFlags & COLFLAG_UNIQUE ){
-    Index *pIdx;
-    for(pIdx=p->pIndex; pIdx; pIdx=pIdx->pNext){
-      assert( pIdx->nKeyCol==1 && pIdx->onError!=OE_None );
-      if( pIdx->aiColumn[0]==p->nCol-1 ){
-        pIdx->uniqNotNull = 1;
-      }
-    }
-  }
-}
-
-/*
-** Scan the column type name zType (length nType) and return the
-** associated affinity type.
-**
-** This routine does a case-independent search of zType for the 
-** substrings in the following table. If one of the substrings is
-** found, the corresponding affinity is returned. If zType contains
-** more than one of the substrings, entries toward the top of 
-** the table take priority. For example, if zType is 'BLOBINT', 
-** SQLITE_AFF_INTEGER is returned.
-**
-** Substring     | Affinity
-** --------------------------------
-** 'INT'         | SQLITE_AFF_INTEGER
-** 'CHAR'        | SQLITE_AFF_TEXT
-** 'CLOB'        | SQLITE_AFF_TEXT
-** 'TEXT'        | SQLITE_AFF_TEXT
-** 'BLOB'        | SQLITE_AFF_BLOB
-** 'REAL'        | SQLITE_AFF_REAL
-** 'FLOA'        | SQLITE_AFF_REAL
-** 'DOUB'        | SQLITE_AFF_REAL
-**
-** If none of the substrings in the above table are found,
-** SQLITE_AFF_NUMERIC is returned.
-*/
-SQLITE_PRIVATE char tdsqlite3AffinityType(const char *zIn, Column *pCol){
-  u32 h = 0;
-  char aff = SQLITE_AFF_NUMERIC;
-  const char *zChar = 0;
-
-  assert( zIn!=0 );
-  while( zIn[0] ){
-    h = (h<<8) + tdsqlite3UpperToLower[(*zIn)&0xff];
-    zIn++;
-    if( h==(('c'<<24)+('h'<<16)+('a'<<8)+'r') ){             /* CHAR */
-      aff = SQLITE_AFF_TEXT;
-      zChar = zIn;
-    }else if( h==(('c'<<24)+('l'<<16)+('o'<<8)+'b') ){       /* CLOB */
-      aff = SQLITE_AFF_TEXT;
-    }else if( h==(('t'<<24)+('e'<<16)+('x'<<8)+'t') ){       /* TEXT */
-      aff = SQLITE_AFF_TEXT;
-    }else if( h==(('b'<<24)+('l'<<16)+('o'<<8)+'b')          /* BLOB */
-        && (aff==SQLITE_AFF_NUMERIC || aff==SQLITE_AFF_REAL) ){
-      aff = SQLITE_AFF_BLOB;
-      if( zIn[0]=='(' ) zChar = zIn;
-#ifndef SQLITE_OMIT_FLOATING_POINT
-    }else if( h==(('r'<<24)+('e'<<16)+('a'<<8)+'l')          /* REAL */
-        && aff==SQLITE_AFF_NUMERIC ){
-      aff = SQLITE_AFF_REAL;
-    }else if( h==(('f'<<24)+('l'<<16)+('o'<<8)+'a')          /* FLOA */
-        && aff==SQLITE_AFF_NUMERIC ){
-      aff = SQLITE_AFF_REAL;
-    }else if( h==(('d'<<24)+('o'<<16)+('u'<<8)+'b')          /* DOUB */
-        && aff==SQLITE_AFF_NUMERIC ){
-      aff = SQLITE_AFF_REAL;
-#endif
-    }else if( (h&0x00FFFFFF)==(('i'<<16)+('n'<<8)+'t') ){    /* INT */
-      aff = SQLITE_AFF_INTEGER;
-      break;
-    }
-  }
-
-  /* If pCol is not NULL, store an estimate of the field size.  The
-  ** estimate is scaled so that the size of an integer is 1.  */
-  if( pCol ){
-    int v = 0;   /* default size is approx 4 bytes */
-    if( aff<SQLITE_AFF_NUMERIC ){
-      if( zChar ){
-        while( zChar[0] ){
-          if( tdsqlite3Isdigit(zChar[0]) ){
-            /* BLOB(k), VARCHAR(k), CHAR(k) -> r=(k/4+1) */
-            tdsqlite3GetInt32(zChar, &v);
-            break;
-          }
-          zChar++;
-        }
-      }else{
-        v = 16;   /* BLOB, TEXT, CLOB -> r=5  (approx 20 bytes)*/
-      }
-    }
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-    if( v>=tdsqlite3GlobalConfig.szSorterRef ){
-      pCol->colFlags |= COLFLAG_SORTERREF;
-    }
-#endif
-    v = v/4 + 1;
-    if( v>255 ) v = 255;
-    pCol->szEst = v;
-  }
-  return aff;
-}
-
-/*
-** The expression is the default value for the most recently added column
-** of the table currently under construction.
-**
-** Default value expressions must be constant.  Raise an exception if this
-** is not the case.
-**
-** This routine is called by the parser while in the middle of
-** parsing a CREATE TABLE statement.
-*/
-SQLITE_PRIVATE void tdsqlite3AddDefaultValue(
-  Parse *pParse,           /* Parsing context */
-  Expr *pExpr,             /* The parsed expression of the default value */
-  const char *zStart,      /* Start of the default value text */
-  const char *zEnd         /* First character past end of defaut value text */
-){
-  Table *p;
-  Column *pCol;
-  tdsqlite3 *db = pParse->db;
-  p = pParse->pNewTable;
-  if( p!=0 ){
-    int isInit = db->init.busy && db->init.iDb!=1;
-    pCol = &(p->aCol[p->nCol-1]);
-    if( !tdsqlite3ExprIsConstantOrFunction(pExpr, isInit) ){
-      tdsqlite3ErrorMsg(pParse, "default value of column [%s] is not constant",
-          pCol->zName);
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-    }else if( pCol->colFlags & COLFLAG_GENERATED ){
-      testcase( pCol->colFlags & COLFLAG_VIRTUAL );
-      testcase( pCol->colFlags & COLFLAG_STORED );
-      tdsqlite3ErrorMsg(pParse, "cannot use DEFAULT on a generated column");
-#endif
-    }else{
-      /* A copy of pExpr is used instead of the original, as pExpr contains
-      ** tokens that point to volatile memory.
-      */
-      Expr x;
-      tdsqlite3ExprDelete(db, pCol->pDflt);
-      memset(&x, 0, sizeof(x));
-      x.op = TK_SPAN;
-      x.u.zToken = tdsqlite3DbSpanDup(db, zStart, zEnd);
-      x.pLeft = pExpr;
-      x.flags = EP_Skip;
-      pCol->pDflt = tdsqlite3ExprDup(db, &x, EXPRDUP_REDUCE);
-      tdsqlite3DbFree(db, x.u.zToken);
-    }
-  }
-  if( IN_RENAME_OBJECT ){
-    tdsqlite3RenameExprUnmap(pParse, pExpr);
-  }
-  tdsqlite3ExprDelete(db, pExpr);
-}
-
-/*
-** Backwards Compatibility Hack:
-** 
-** Historical versions of SQLite accepted strings as column names in
-** indexes and PRIMARY KEY constraints and in UNIQUE constraints.  Example:
-**
-**     CREATE TABLE xyz(a,b,c,d,e,PRIMARY KEY('a'),UNIQUE('b','c' COLLATE trim)
-**     CREATE INDEX abc ON xyz('c','d' DESC,'e' COLLATE nocase DESC);
-**
-** This is goofy.  But to preserve backwards compatibility we continue to
-** accept it.  This routine does the necessary conversion.  It converts
-** the expression given in its argument from a TK_STRING into a TK_ID
-** if the expression is just a TK_STRING with an optional COLLATE clause.
-** If the expression is anything other than TK_STRING, the expression is
-** unchanged.
-*/
-static void tdsqlite3StringToId(Expr *p){
-  if( p->op==TK_STRING ){
-    p->op = TK_ID;
-  }else if( p->op==TK_COLLATE && p->pLeft->op==TK_STRING ){
-    p->pLeft->op = TK_ID;
-  }
-}
-
-/*
-** Tag the given column as being part of the PRIMARY KEY
-*/
-static void makeColumnPartOfPrimaryKey(Parse *pParse, Column *pCol){
-  pCol->colFlags |= COLFLAG_PRIMKEY;
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-  if( pCol->colFlags & COLFLAG_GENERATED ){
-    testcase( pCol->colFlags & COLFLAG_VIRTUAL );
-    testcase( pCol->colFlags & COLFLAG_STORED );
-    tdsqlite3ErrorMsg(pParse,
-      "generated columns cannot be part of the PRIMARY KEY");
-  }
-#endif          
-}
-
-/*
-** Designate the PRIMARY KEY for the table.  pList is a list of names 
-** of columns that form the primary key.  If pList is NULL, then the
-** most recently added column of the table is the primary key.
-**
-** A table can have at most one primary key.  If the table already has
-** a primary key (and this is the second primary key) then create an
-** error.
-**
-** If the PRIMARY KEY is on a single column whose datatype is INTEGER,
-** then we will try to use that column as the rowid.  Set the Table.iPKey
-** field of the table under construction to be the index of the
-** INTEGER PRIMARY KEY column.  Table.iPKey is set to -1 if there is
-** no INTEGER PRIMARY KEY.
-**
-** If the key is not an INTEGER PRIMARY KEY, then create a unique
-** index for the key.  No index is created for INTEGER PRIMARY KEYs.
-*/
-SQLITE_PRIVATE void tdsqlite3AddPrimaryKey(
-  Parse *pParse,    /* Parsing context */
-  ExprList *pList,  /* List of field names to be indexed */
-  int onError,      /* What to do with a uniqueness conflict */
-  int autoInc,      /* True if the AUTOINCREMENT keyword is present */
-  int sortOrder     /* SQLITE_SO_ASC or SQLITE_SO_DESC */
-){
-  Table *pTab = pParse->pNewTable;
-  Column *pCol = 0;
-  int iCol = -1, i;
-  int nTerm;
-  if( pTab==0 ) goto primary_key_exit;
-  if( pTab->tabFlags & TF_HasPrimaryKey ){
-    tdsqlite3ErrorMsg(pParse, 
-      "table \"%s\" has more than one primary key", pTab->zName);
-    goto primary_key_exit;
-  }
-  pTab->tabFlags |= TF_HasPrimaryKey;
-  if( pList==0 ){
-    iCol = pTab->nCol - 1;
-    pCol = &pTab->aCol[iCol];
-    makeColumnPartOfPrimaryKey(pParse, pCol);
-    nTerm = 1;
-  }else{
-    nTerm = pList->nExpr;
-    for(i=0; i<nTerm; i++){
-      Expr *pCExpr = tdsqlite3ExprSkipCollate(pList->a[i].pExpr);
-      assert( pCExpr!=0 );
-      tdsqlite3StringToId(pCExpr);
-      if( pCExpr->op==TK_ID ){
-        const char *zCName = pCExpr->u.zToken;
-        for(iCol=0; iCol<pTab->nCol; iCol++){
-          if( tdsqlite3StrICmp(zCName, pTab->aCol[iCol].zName)==0 ){
-            pCol = &pTab->aCol[iCol];
-            makeColumnPartOfPrimaryKey(pParse, pCol);
-            break;
-          }
-        }
-      }
-    }
-  }
-  if( nTerm==1
-   && pCol
-   && tdsqlite3StrICmp(tdsqlite3ColumnType(pCol,""), "INTEGER")==0
-   && sortOrder!=SQLITE_SO_DESC
-  ){
-    if( IN_RENAME_OBJECT && pList ){
-      Expr *pCExpr = tdsqlite3ExprSkipCollate(pList->a[0].pExpr);
-      tdsqlite3RenameTokenRemap(pParse, &pTab->iPKey, pCExpr);
-    }
-    pTab->iPKey = iCol;
-    pTab->keyConf = (u8)onError;
-    assert( autoInc==0 || autoInc==1 );
-    pTab->tabFlags |= autoInc*TF_Autoincrement;
-    if( pList ) pParse->iPkSortOrder = pList->a[0].sortFlags;
-    (void)tdsqlite3HasExplicitNulls(pParse, pList);
-  }else if( autoInc ){
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-    tdsqlite3ErrorMsg(pParse, "AUTOINCREMENT is only allowed on an "
-       "INTEGER PRIMARY KEY");
-#endif
-  }else{
-    tdsqlite3CreateIndex(pParse, 0, 0, 0, pList, onError, 0,
-                           0, sortOrder, 0, SQLITE_IDXTYPE_PRIMARYKEY);
-    pList = 0;
-  }
-
-primary_key_exit:
-  tdsqlite3ExprListDelete(pParse->db, pList);
-  return;
-}
-
-/*
-** Add a new CHECK constraint to the table currently under construction.
-*/
-SQLITE_PRIVATE void tdsqlite3AddCheckConstraint(
-  Parse *pParse,    /* Parsing context */
-  Expr *pCheckExpr  /* The check expression */
-){
-#ifndef SQLITE_OMIT_CHECK
-  Table *pTab = pParse->pNewTable;
-  tdsqlite3 *db = pParse->db;
-  if( pTab && !IN_DECLARE_VTAB
-   && !tdsqlite3BtreeIsReadonly(db->aDb[db->init.iDb].pBt)
-  ){
-    pTab->pCheck = tdsqlite3ExprListAppend(pParse, pTab->pCheck, pCheckExpr);
-    if( pParse->constraintName.n ){
-      tdsqlite3ExprListSetName(pParse, pTab->pCheck, &pParse->constraintName, 1);
-    }
-  }else
-#endif
-  {
-    tdsqlite3ExprDelete(pParse->db, pCheckExpr);
-  }
-}
-
-/*
-** Set the collation function of the most recently parsed table column
-** to the CollSeq given.
-*/
-SQLITE_PRIVATE void tdsqlite3AddCollateType(Parse *pParse, Token *pToken){
-  Table *p;
-  int i;
-  char *zColl;              /* Dequoted name of collation sequence */
-  tdsqlite3 *db;
-
-  if( (p = pParse->pNewTable)==0 ) return;
-  i = p->nCol-1;
-  db = pParse->db;
-  zColl = tdsqlite3NameFromToken(db, pToken);
-  if( !zColl ) return;
-
-  if( tdsqlite3LocateCollSeq(pParse, zColl) ){
-    Index *pIdx;
-    tdsqlite3DbFree(db, p->aCol[i].zColl);
-    p->aCol[i].zColl = zColl;
-  
-    /* If the column is declared as "<name> PRIMARY KEY COLLATE <type>",
-    ** then an index may have been created on this column before the
-    ** collation type was added. Correct this if it is the case.
-    */
-    for(pIdx=p->pIndex; pIdx; pIdx=pIdx->pNext){
-      assert( pIdx->nKeyCol==1 );
-      if( pIdx->aiColumn[0]==i ){
-        pIdx->azColl[0] = p->aCol[i].zColl;
-      }
-    }
-  }else{
-    tdsqlite3DbFree(db, zColl);
-  }
-}
-
-/* Change the most recently parsed column to be a GENERATED ALWAYS AS
-** column.
-*/
-SQLITE_PRIVATE void tdsqlite3AddGenerated(Parse *pParse, Expr *pExpr, Token *pType){
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-  u8 eType = COLFLAG_VIRTUAL;
-  Table *pTab = pParse->pNewTable;
-  Column *pCol;
-  if( pTab==0 ){
-    /* generated column in an CREATE TABLE IF NOT EXISTS that already exists */
-    goto generated_done;
-  }
-  pCol = &(pTab->aCol[pTab->nCol-1]);
-  if( IN_DECLARE_VTAB ){
-    tdsqlite3ErrorMsg(pParse, "virtual tables cannot use computed columns");
-    goto generated_done;
-  }
-  if( pCol->pDflt ) goto generated_error;
-  if( pType ){
-    if( pType->n==7 && tdsqlite3StrNICmp("virtual",pType->z,7)==0 ){
-      /* no-op */
-    }else if( pType->n==6 && tdsqlite3StrNICmp("stored",pType->z,6)==0 ){
-      eType = COLFLAG_STORED;
-    }else{
-      goto generated_error;
-    }
-  }
-  if( eType==COLFLAG_VIRTUAL ) pTab->nNVCol--;
-  pCol->colFlags |= eType;
-  assert( TF_HasVirtual==COLFLAG_VIRTUAL );
-  assert( TF_HasStored==COLFLAG_STORED );
-  pTab->tabFlags |= eType;
-  if( pCol->colFlags & COLFLAG_PRIMKEY ){
-    makeColumnPartOfPrimaryKey(pParse, pCol); /* For the error message */
-  }
-  pCol->pDflt = pExpr;
-  pExpr = 0;
-  goto generated_done;
-
-generated_error:
-  tdsqlite3ErrorMsg(pParse, "error in generated column \"%s\"",
-                  pCol->zName);
-generated_done:
-  tdsqlite3ExprDelete(pParse->db, pExpr);
-#else
-  /* Throw and error for the GENERATED ALWAYS AS clause if the
-  ** SQLITE_OMIT_GENERATED_COLUMNS compile-time option is used. */
-  tdsqlite3ErrorMsg(pParse, "generated columns not supported");
-  tdsqlite3ExprDelete(pParse->db, pExpr);
-#endif
-}
-
-/*
-** Generate code that will increment the schema cookie.
-**
-** The schema cookie is used to determine when the schema for the
-** database changes.  After each schema change, the cookie value
-** changes.  When a process first reads the schema it records the
-** cookie.  Thereafter, whenever it goes to access the database,
-** it checks the cookie to make sure the schema has not changed
-** since it was last read.
-**
-** This plan is not completely bullet-proof.  It is possible for
-** the schema to change multiple times and for the cookie to be
-** set back to prior value.  But schema changes are infrequent
-** and the probability of hitting the same cookie value is only
-** 1 chance in 2^32.  So we're safe enough.
-**
-** IMPLEMENTATION-OF: R-34230-56049 SQLite automatically increments
-** the schema-version whenever the schema changes.
-*/
-SQLITE_PRIVATE void tdsqlite3ChangeCookie(Parse *pParse, int iDb){
-  tdsqlite3 *db = pParse->db;
-  Vdbe *v = pParse->pVdbe;
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  tdsqlite3VdbeAddOp3(v, OP_SetCookie, iDb, BTREE_SCHEMA_VERSION, 
-                   (int)(1+(unsigned)db->aDb[iDb].pSchema->schema_cookie));
-}
-
-/*
-** Measure the number of characters needed to output the given
-** identifier.  The number returned includes any quotes used
-** but does not include the null terminator.
-**
-** The estimate is conservative.  It might be larger that what is
-** really needed.
-*/
-static int identLength(const char *z){
-  int n;
-  for(n=0; *z; n++, z++){
-    if( *z=='"' ){ n++; }
-  }
-  return n + 2;
-}
-
-/*
-** The first parameter is a pointer to an output buffer. The second 
-** parameter is a pointer to an integer that contains the offset at
-** which to write into the output buffer. This function copies the
-** nul-terminated string pointed to by the third parameter, zSignedIdent,
-** to the specified offset in the buffer and updates *pIdx to refer
-** to the first byte after the last byte written before returning.
-** 
-** If the string zSignedIdent consists entirely of alpha-numeric
-** characters, does not begin with a digit and is not an SQL keyword,
-** then it is copied to the output buffer exactly as it is. Otherwise,
-** it is quoted using double-quotes.
-*/
-static void identPut(char *z, int *pIdx, char *zSignedIdent){
-  unsigned char *zIdent = (unsigned char*)zSignedIdent;
-  int i, j, needQuote;
-  i = *pIdx;
-
-  for(j=0; zIdent[j]; j++){
-    if( !tdsqlite3Isalnum(zIdent[j]) && zIdent[j]!='_' ) break;
-  }
-  needQuote = tdsqlite3Isdigit(zIdent[0])
-            || tdsqlite3KeywordCode(zIdent, j)!=TK_ID
-            || zIdent[j]!=0
-            || j==0;
-
-  if( needQuote ) z[i++] = '"';
-  for(j=0; zIdent[j]; j++){
-    z[i++] = zIdent[j];
-    if( zIdent[j]=='"' ) z[i++] = '"';
-  }
-  if( needQuote ) z[i++] = '"';
-  z[i] = 0;
-  *pIdx = i;
-}
-
-/*
-** Generate a CREATE TABLE statement appropriate for the given
-** table.  Memory to hold the text of the statement is obtained
-** from sqliteMalloc() and must be freed by the calling function.
-*/
-static char *createTableStmt(tdsqlite3 *db, Table *p){
-  int i, k, n;
-  char *zStmt;
-  char *zSep, *zSep2, *zEnd;
-  Column *pCol;
-  n = 0;
-  for(pCol = p->aCol, i=0; i<p->nCol; i++, pCol++){
-    n += identLength(pCol->zName) + 5;
-  }
-  n += identLength(p->zName);
-  if( n<50 ){ 
-    zSep = "";
-    zSep2 = ",";
-    zEnd = ")";
-  }else{
-    zSep = "\n  ";
-    zSep2 = ",\n  ";
-    zEnd = "\n)";
-  }
-  n += 35 + 6*p->nCol;
-  zStmt = tdsqlite3DbMallocRaw(0, n);
-  if( zStmt==0 ){
-    tdsqlite3OomFault(db);
-    return 0;
-  }
-  tdsqlite3_snprintf(n, zStmt, "CREATE TABLE ");
-  k = tdsqlite3Strlen30(zStmt);
-  identPut(zStmt, &k, p->zName);
-  zStmt[k++] = '(';
-  for(pCol=p->aCol, i=0; i<p->nCol; i++, pCol++){
-    static const char * const azType[] = {
-        /* SQLITE_AFF_BLOB    */ "",
-        /* SQLITE_AFF_TEXT    */ " TEXT",
-        /* SQLITE_AFF_NUMERIC */ " NUM",
-        /* SQLITE_AFF_INTEGER */ " INT",
-        /* SQLITE_AFF_REAL    */ " REAL"
-    };
-    int len;
-    const char *zType;
-
-    tdsqlite3_snprintf(n-k, &zStmt[k], zSep);
-    k += tdsqlite3Strlen30(&zStmt[k]);
-    zSep = zSep2;
-    identPut(zStmt, &k, pCol->zName);
-    assert( pCol->affinity-SQLITE_AFF_BLOB >= 0 );
-    assert( pCol->affinity-SQLITE_AFF_BLOB < ArraySize(azType) );
-    testcase( pCol->affinity==SQLITE_AFF_BLOB );
-    testcase( pCol->affinity==SQLITE_AFF_TEXT );
-    testcase( pCol->affinity==SQLITE_AFF_NUMERIC );
-    testcase( pCol->affinity==SQLITE_AFF_INTEGER );
-    testcase( pCol->affinity==SQLITE_AFF_REAL );
-    
-    zType = azType[pCol->affinity - SQLITE_AFF_BLOB];
-    len = tdsqlite3Strlen30(zType);
-    assert( pCol->affinity==SQLITE_AFF_BLOB 
-            || pCol->affinity==tdsqlite3AffinityType(zType, 0) );
-    memcpy(&zStmt[k], zType, len);
-    k += len;
-    assert( k<=n );
-  }
-  tdsqlite3_snprintf(n-k, &zStmt[k], "%s", zEnd);
-  return zStmt;
-}
-
-/*
-** Resize an Index object to hold N columns total.  Return SQLITE_OK
-** on success and SQLITE_NOMEM on an OOM error.
-*/
-static int resizeIndexObject(tdsqlite3 *db, Index *pIdx, int N){
-  char *zExtra;
-  int nByte;
-  if( pIdx->nColumn>=N ) return SQLITE_OK;
-  assert( pIdx->isResized==0 );
-  nByte = (sizeof(char*) + sizeof(i16) + 1)*N;
-  zExtra = tdsqlite3DbMallocZero(db, nByte);
-  if( zExtra==0 ) return SQLITE_NOMEM_BKPT;
-  memcpy(zExtra, pIdx->azColl, sizeof(char*)*pIdx->nColumn);
-  pIdx->azColl = (const char**)zExtra;
-  zExtra += sizeof(char*)*N;
-  memcpy(zExtra, pIdx->aiColumn, sizeof(i16)*pIdx->nColumn);
-  pIdx->aiColumn = (i16*)zExtra;
-  zExtra += sizeof(i16)*N;
-  memcpy(zExtra, pIdx->aSortOrder, pIdx->nColumn);
-  pIdx->aSortOrder = (u8*)zExtra;
-  pIdx->nColumn = N;
-  pIdx->isResized = 1;
-  return SQLITE_OK;
-}
-
-/*
-** Estimate the total row width for a table.
-*/
-static void estimateTableWidth(Table *pTab){
-  unsigned wTable = 0;
-  const Column *pTabCol;
-  int i;
-  for(i=pTab->nCol, pTabCol=pTab->aCol; i>0; i--, pTabCol++){
-    wTable += pTabCol->szEst;
-  }
-  if( pTab->iPKey<0 ) wTable++;
-  pTab->szTabRow = tdsqlite3LogEst(wTable*4);
-}
-
-/*
-** Estimate the average size of a row for an index.
-*/
-static void estimateIndexWidth(Index *pIdx){
-  unsigned wIndex = 0;
-  int i;
-  const Column *aCol = pIdx->pTable->aCol;
-  for(i=0; i<pIdx->nColumn; i++){
-    i16 x = pIdx->aiColumn[i];
-    assert( x<pIdx->pTable->nCol );
-    wIndex += x<0 ? 1 : aCol[pIdx->aiColumn[i]].szEst;
-  }
-  pIdx->szIdxRow = tdsqlite3LogEst(wIndex*4);
-}
-
-/* Return true if column number x is any of the first nCol entries of aiCol[].
-** This is used to determine if the column number x appears in any of the
-** first nCol entries of an index.
-*/
-static int hasColumn(const i16 *aiCol, int nCol, int x){
-  while( nCol-- > 0 ){
-    assert( aiCol[0]>=0 );
-    if( x==*(aiCol++) ){
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** Return true if any of the first nKey entries of index pIdx exactly
-** match the iCol-th entry of pPk.  pPk is always a WITHOUT ROWID
-** PRIMARY KEY index.  pIdx is an index on the same table.  pIdx may
-** or may not be the same index as pPk.
-**
-** The first nKey entries of pIdx are guaranteed to be ordinary columns,
-** not a rowid or expression.
-**
-** This routine differs from hasColumn() in that both the column and the
-** collating sequence must match for this routine, but for hasColumn() only
-** the column name must match.
-*/
-static int isDupColumn(Index *pIdx, int nKey, Index *pPk, int iCol){
-  int i, j;
-  assert( nKey<=pIdx->nColumn );
-  assert( iCol<MAX(pPk->nColumn,pPk->nKeyCol) );
-  assert( pPk->idxType==SQLITE_IDXTYPE_PRIMARYKEY );
-  assert( pPk->pTable->tabFlags & TF_WithoutRowid );
-  assert( pPk->pTable==pIdx->pTable );
-  testcase( pPk==pIdx );
-  j = pPk->aiColumn[iCol];
-  assert( j!=XN_ROWID && j!=XN_EXPR );
-  for(i=0; i<nKey; i++){
-    assert( pIdx->aiColumn[i]>=0 || j>=0 );
-    if( pIdx->aiColumn[i]==j 
-     && tdsqlite3StrICmp(pIdx->azColl[i], pPk->azColl[iCol])==0
-    ){
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/* Recompute the colNotIdxed field of the Index.
-**
-** colNotIdxed is a bitmask that has a 0 bit representing each indexed
-** columns that are within the first 63 columns of the table.  The
-** high-order bit of colNotIdxed is always 1.  All unindexed columns
-** of the table have a 1.
-**
-** 2019-10-24:  For the purpose of this computation, virtual columns are
-** not considered to be covered by the index, even if they are in the
-** index, because we do not trust the logic in whereIndexExprTrans() to be
-** able to find all instances of a reference to the indexed table column
-** and convert them into references to the index.  Hence we always want
-** the actual table at hand in order to recompute the virtual column, if
-** necessary.
-**
-** The colNotIdxed mask is AND-ed with the SrcList.a[].colUsed mask
-** to determine if the index is covering index.
-*/
-static void recomputeColumnsNotIndexed(Index *pIdx){
-  Bitmask m = 0;
-  int j;
-  Table *pTab = pIdx->pTable;
-  for(j=pIdx->nColumn-1; j>=0; j--){
-    int x = pIdx->aiColumn[j];
-    if( x>=0 && (pTab->aCol[x].colFlags & COLFLAG_VIRTUAL)==0 ){
-      testcase( x==BMS-1 );
-      testcase( x==BMS-2 );
-      if( x<BMS-1 ) m |= MASKBIT(x);
-    }
-  }
-  pIdx->colNotIdxed = ~m;
-  assert( (pIdx->colNotIdxed>>63)==1 );
-}
-
-/*
-** This routine runs at the end of parsing a CREATE TABLE statement that
-** has a WITHOUT ROWID clause.  The job of this routine is to convert both
-** internal schema data structures and the generated VDBE code so that they
-** are appropriate for a WITHOUT ROWID table instead of a rowid table.
-** Changes include:
-**
-**     (1)  Set all columns of the PRIMARY KEY schema object to be NOT NULL.
-**     (2)  Convert P3 parameter of the OP_CreateBtree from BTREE_INTKEY 
-**          into BTREE_BLOBKEY.
-**     (3)  Bypass the creation of the sqlite_master table entry
-**          for the PRIMARY KEY as the primary key index is now
-**          identified by the sqlite_master table entry of the table itself.
-**     (4)  Set the Index.tnum of the PRIMARY KEY Index object in the
-**          schema to the rootpage from the main table.
-**     (5)  Add all table columns to the PRIMARY KEY Index object
-**          so that the PRIMARY KEY is a covering index.  The surplus
-**          columns are part of KeyInfo.nAllField and are not used for
-**          sorting or lookup or uniqueness checks.
-**     (6)  Replace the rowid tail on all automatically generated UNIQUE
-**          indices with the PRIMARY KEY columns.
-**
-** For virtual tables, only (1) is performed.
-*/
-static void convertToWithoutRowidTable(Parse *pParse, Table *pTab){
-  Index *pIdx;
-  Index *pPk;
-  int nPk;
-  int nExtra;
-  int i, j;
-  tdsqlite3 *db = pParse->db;
-  Vdbe *v = pParse->pVdbe;
-
-  /* Mark every PRIMARY KEY column as NOT NULL (except for imposter tables)
-  */
-  if( !db->init.imposterTable ){
-    for(i=0; i<pTab->nCol; i++){
-      if( (pTab->aCol[i].colFlags & COLFLAG_PRIMKEY)!=0 ){
-        pTab->aCol[i].notNull = OE_Abort;
-      }
-    }
-    pTab->tabFlags |= TF_HasNotNull;
-  }
-
-  /* Convert the P3 operand of the OP_CreateBtree opcode from BTREE_INTKEY
-  ** into BTREE_BLOBKEY.
-  */
-  if( pParse->addrCrTab ){
-    assert( v );
-    tdsqlite3VdbeChangeP3(v, pParse->addrCrTab, BTREE_BLOBKEY);
-  }
-
-  /* Locate the PRIMARY KEY index.  Or, if this table was originally
-  ** an INTEGER PRIMARY KEY table, create a new PRIMARY KEY index. 
-  */
-  if( pTab->iPKey>=0 ){
-    ExprList *pList;
-    Token ipkToken;
-    tdsqlite3TokenInit(&ipkToken, pTab->aCol[pTab->iPKey].zName);
-    pList = tdsqlite3ExprListAppend(pParse, 0, 
-                  tdsqlite3ExprAlloc(db, TK_ID, &ipkToken, 0));
-    if( pList==0 ) return;
-    if( IN_RENAME_OBJECT ){
-      tdsqlite3RenameTokenRemap(pParse, pList->a[0].pExpr, &pTab->iPKey);
-    }
-    pList->a[0].sortFlags = pParse->iPkSortOrder;
-    assert( pParse->pNewTable==pTab );
-    pTab->iPKey = -1;
-    tdsqlite3CreateIndex(pParse, 0, 0, 0, pList, pTab->keyConf, 0, 0, 0, 0,
-                       SQLITE_IDXTYPE_PRIMARYKEY);
-    if( db->mallocFailed || pParse->nErr ) return;
-    pPk = tdsqlite3PrimaryKeyIndex(pTab);
-    assert( pPk->nKeyCol==1 );
-  }else{
-    pPk = tdsqlite3PrimaryKeyIndex(pTab);
-    assert( pPk!=0 );
-
-    /*
-    ** Remove all redundant columns from the PRIMARY KEY.  For example, change
-    ** "PRIMARY KEY(a,b,a,b,c,b,c,d)" into just "PRIMARY KEY(a,b,c,d)".  Later
-    ** code assumes the PRIMARY KEY contains no repeated columns.
-    */
-    for(i=j=1; i<pPk->nKeyCol; i++){
-      if( isDupColumn(pPk, j, pPk, i) ){
-        pPk->nColumn--;
-      }else{
-        testcase( hasColumn(pPk->aiColumn, j, pPk->aiColumn[i]) );
-        pPk->azColl[j] = pPk->azColl[i];
-        pPk->aSortOrder[j] = pPk->aSortOrder[i];
-        pPk->aiColumn[j++] = pPk->aiColumn[i];
-      }
-    }
-    pPk->nKeyCol = j;
-  }
-  assert( pPk!=0 );
-  pPk->isCovering = 1;
-  if( !db->init.imposterTable ) pPk->uniqNotNull = 1;
-  nPk = pPk->nColumn = pPk->nKeyCol;
-
-  /* Bypass the creation of the PRIMARY KEY btree and the sqlite_master
-  ** table entry. This is only required if currently generating VDBE
-  ** code for a CREATE TABLE (not when parsing one as part of reading
-  ** a database schema).  */
-  if( v && pPk->tnum>0 ){
-    assert( db->init.busy==0 );
-    tdsqlite3VdbeChangeOpcode(v, pPk->tnum, OP_Goto);
-  }
-
-  /* The root page of the PRIMARY KEY is the table root page */
-  pPk->tnum = pTab->tnum;
-
-  /* Update the in-memory representation of all UNIQUE indices by converting
-  ** the final rowid column into one or more columns of the PRIMARY KEY.
-  */
-  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-    int n;
-    if( IsPrimaryKeyIndex(pIdx) ) continue;
-    for(i=n=0; i<nPk; i++){
-      if( !isDupColumn(pIdx, pIdx->nKeyCol, pPk, i) ){
-        testcase( hasColumn(pIdx->aiColumn, pIdx->nKeyCol, pPk->aiColumn[i]) );
-        n++;
-      }
-    }
-    if( n==0 ){
-      /* This index is a superset of the primary key */
-      pIdx->nColumn = pIdx->nKeyCol;
-      continue;
-    }
-    if( resizeIndexObject(db, pIdx, pIdx->nKeyCol+n) ) return;
-    for(i=0, j=pIdx->nKeyCol; i<nPk; i++){
-      if( !isDupColumn(pIdx, pIdx->nKeyCol, pPk, i) ){
-        testcase( hasColumn(pIdx->aiColumn, pIdx->nKeyCol, pPk->aiColumn[i]) );
-        pIdx->aiColumn[j] = pPk->aiColumn[i];
-        pIdx->azColl[j] = pPk->azColl[i];
-        if( pPk->aSortOrder[i] ){
-          /* See ticket https://www.sqlite.org/src/info/bba7b69f9849b5bf */
-          pIdx->bAscKeyBug = 1;
-        }
-        j++;
-      }
-    }
-    assert( pIdx->nColumn>=pIdx->nKeyCol+n );
-    assert( pIdx->nColumn>=j );
-  }
-
-  /* Add all table columns to the PRIMARY KEY index
-  */
-  nExtra = 0;
-  for(i=0; i<pTab->nCol; i++){
-    if( !hasColumn(pPk->aiColumn, nPk, i)
-     && (pTab->aCol[i].colFlags & COLFLAG_VIRTUAL)==0 ) nExtra++;
-  }
-  if( resizeIndexObject(db, pPk, nPk+nExtra) ) return;
-  for(i=0, j=nPk; i<pTab->nCol; i++){
-    if( !hasColumn(pPk->aiColumn, j, i)
-     && (pTab->aCol[i].colFlags & COLFLAG_VIRTUAL)==0
-    ){
-      assert( j<pPk->nColumn );
-      pPk->aiColumn[j] = i;
-      pPk->azColl[j] = tdsqlite3StrBINARY;
-      j++;
-    }
-  }
-  assert( pPk->nColumn==j );
-  assert( pTab->nNVCol<=j );
-  recomputeColumnsNotIndexed(pPk);
-}
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/*
-** Return true if zName is a shadow table name in the current database
-** connection.
-**
-** zName is temporarily modified while this routine is running, but is
-** restored to its original value prior to this routine returning.
-*/
-SQLITE_PRIVATE int tdsqlite3ShadowTableName(tdsqlite3 *db, const char *zName){
-  char *zTail;                  /* Pointer to the last "_" in zName */
-  Table *pTab;                  /* Table that zName is a shadow of */
-  Module *pMod;                 /* Module for the virtual table */
-
-  zTail = strrchr(zName, '_');
-  if( zTail==0 ) return 0;
-  *zTail = 0;
-  pTab = tdsqlite3FindTable(db, zName, 0);
-  *zTail = '_';
-  if( pTab==0 ) return 0;
-  if( !IsVirtual(pTab) ) return 0;
-  pMod = (Module*)tdsqlite3HashFind(&db->aModule, pTab->azModuleArg[0]);
-  if( pMod==0 ) return 0;
-  if( pMod->pModule->iVersion<3 ) return 0;
-  if( pMod->pModule->xShadowName==0 ) return 0;
-  return pMod->pModule->xShadowName(zTail+1);
-}
-#endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */
-
-/*
-** This routine is called to report the final ")" that terminates
-** a CREATE TABLE statement.
-**
-** The table structure that other action routines have been building
-** is added to the internal hash tables, assuming no errors have
-** occurred.
-**
-** An entry for the table is made in the master table on disk, unless
-** this is a temporary table or db->init.busy==1.  When db->init.busy==1
-** it means we are reading the sqlite_master table because we just
-** connected to the database or because the sqlite_master table has
-** recently changed, so the entry for this table already exists in
-** the sqlite_master table.  We do not want to create it again.
-**
-** If the pSelect argument is not NULL, it means that this routine
-** was called to create a table generated from a 
-** "CREATE TABLE ... AS SELECT ..." statement.  The column names of
-** the new table will match the result set of the SELECT.
-*/
-SQLITE_PRIVATE void tdsqlite3EndTable(
-  Parse *pParse,          /* Parse context */
-  Token *pCons,           /* The ',' token after the last column defn. */
-  Token *pEnd,            /* The ')' before options in the CREATE TABLE */
-  u8 tabOpts,             /* Extra table options. Usually 0. */
-  Select *pSelect         /* Select from a "CREATE ... AS SELECT" */
-){
-  Table *p;                 /* The new table */
-  tdsqlite3 *db = pParse->db; /* The database connection */
-  int iDb;                  /* Database in which the table lives */
-  Index *pIdx;              /* An implied index of the table */
-
-  if( pEnd==0 && pSelect==0 ){
-    return;
-  }
-  assert( !db->mallocFailed );
-  p = pParse->pNewTable;
-  if( p==0 ) return;
-
-  if( pSelect==0 && tdsqlite3ShadowTableName(db, p->zName) ){
-    p->tabFlags |= TF_Shadow;
-  }
-
-  /* If the db->init.busy is 1 it means we are reading the SQL off the
-  ** "sqlite_master" or "sqlite_temp_master" table on the disk.
-  ** So do not write to the disk again.  Extract the root page number
-  ** for the table from the db->init.newTnum field.  (The page number
-  ** should have been put there by the sqliteOpenCb routine.)
-  **
-  ** If the root page number is 1, that means this is the sqlite_master
-  ** table itself.  So mark it read-only.
-  */
-  if( db->init.busy ){
-    if( pSelect ){
-      tdsqlite3ErrorMsg(pParse, "");
-      return;
-    }
-    p->tnum = db->init.newTnum;
-    if( p->tnum==1 ) p->tabFlags |= TF_Readonly;
-  }
-
-  assert( (p->tabFlags & TF_HasPrimaryKey)==0
-       || p->iPKey>=0 || tdsqlite3PrimaryKeyIndex(p)!=0 );
-  assert( (p->tabFlags & TF_HasPrimaryKey)!=0
-       || (p->iPKey<0 && tdsqlite3PrimaryKeyIndex(p)==0) );
-
-  /* Special processing for WITHOUT ROWID Tables */
-  if( tabOpts & TF_WithoutRowid ){
-    if( (p->tabFlags & TF_Autoincrement) ){
-      tdsqlite3ErrorMsg(pParse,
-          "AUTOINCREMENT not allowed on WITHOUT ROWID tables");
-      return;
-    }
-    if( (p->tabFlags & TF_HasPrimaryKey)==0 ){
-      tdsqlite3ErrorMsg(pParse, "PRIMARY KEY missing on table %s", p->zName);
-      return;
-    }
-    p->tabFlags |= TF_WithoutRowid | TF_NoVisibleRowid;
-    convertToWithoutRowidTable(pParse, p);
-  }
-  iDb = tdsqlite3SchemaToIndex(db, p->pSchema);
-
-#ifndef SQLITE_OMIT_CHECK
-  /* Resolve names in all CHECK constraint expressions.
-  */
-  if( p->pCheck ){
-    tdsqlite3ResolveSelfReference(pParse, p, NC_IsCheck, 0, p->pCheck);
-    if( pParse->nErr ){
-      /* If errors are seen, delete the CHECK constraints now, else they might
-      ** actually be used if PRAGMA writable_schema=ON is set. */
-      tdsqlite3ExprListDelete(db, p->pCheck);
-      p->pCheck = 0;
-    }
-  }
-#endif /* !defined(SQLITE_OMIT_CHECK) */
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-  if( p->tabFlags & TF_HasGenerated ){
-    int ii, nNG = 0;
-    testcase( p->tabFlags & TF_HasVirtual );
-    testcase( p->tabFlags & TF_HasStored );
-    for(ii=0; ii<p->nCol; ii++){
-      u32 colFlags = p->aCol[ii].colFlags;
-      if( (colFlags & COLFLAG_GENERATED)!=0 ){
-        Expr *pX = p->aCol[ii].pDflt;
-        testcase( colFlags & COLFLAG_VIRTUAL );
-        testcase( colFlags & COLFLAG_STORED );
-        if( tdsqlite3ResolveSelfReference(pParse, p, NC_GenCol, pX, 0) ){
-          /* If there are errors in resolving the expression, change the
-          ** expression to a NULL.  This prevents code generators that operate
-          ** on the expression from inserting extra parts into the expression
-          ** tree that have been allocated from lookaside memory, which is
-          ** illegal in a schema and will lead to errors or heap corruption
-          ** when the database connection closes. */
-          tdsqlite3ExprDelete(db, pX);
-          p->aCol[ii].pDflt = tdsqlite3ExprAlloc(db, TK_NULL, 0, 0);
-        }
-      }else{
-        nNG++;
-      }
-    }
-    if( nNG==0 ){
-      tdsqlite3ErrorMsg(pParse, "must have at least one non-generated column");
-      return;
-    }
-  }
-#endif
-
-  /* Estimate the average row size for the table and for all implied indices */
-  estimateTableWidth(p);
-  for(pIdx=p->pIndex; pIdx; pIdx=pIdx->pNext){
-    estimateIndexWidth(pIdx);
-  }
-
-  /* If not initializing, then create a record for the new table
-  ** in the SQLITE_MASTER table of the database.
-  **
-  ** If this is a TEMPORARY table, write the entry into the auxiliary
-  ** file instead of into the main database file.
-  */
-  if( !db->init.busy ){
-    int n;
-    Vdbe *v;
-    char *zType;    /* "view" or "table" */
-    char *zType2;   /* "VIEW" or "TABLE" */
-    char *zStmt;    /* Text of the CREATE TABLE or CREATE VIEW statement */
-
-    v = tdsqlite3GetVdbe(pParse);
-    if( NEVER(v==0) ) return;
-
-    tdsqlite3VdbeAddOp1(v, OP_Close, 0);
-
-    /* 
-    ** Initialize zType for the new view or table.
-    */
-    if( p->pSelect==0 ){
-      /* A regular table */
-      zType = "table";
-      zType2 = "TABLE";
-#ifndef SQLITE_OMIT_VIEW
-    }else{
-      /* A view */
-      zType = "view";
-      zType2 = "VIEW";
-#endif
-    }
-
-    /* If this is a CREATE TABLE xx AS SELECT ..., execute the SELECT
-    ** statement to populate the new table. The root-page number for the
-    ** new table is in register pParse->regRoot.
-    **
-    ** Once the SELECT has been coded by tdsqlite3Select(), it is in a
-    ** suitable state to query for the column names and types to be used
-    ** by the new table.
-    **
-    ** A shared-cache write-lock is not required to write to the new table,
-    ** as a schema-lock must have already been obtained to create it. Since
-    ** a schema-lock excludes all other database users, the write-lock would
-    ** be redundant.
-    */
-    if( pSelect ){
-      SelectDest dest;    /* Where the SELECT should store results */
-      int regYield;       /* Register holding co-routine entry-point */
-      int addrTop;        /* Top of the co-routine */
-      int regRec;         /* A record to be insert into the new table */
-      int regRowid;       /* Rowid of the next row to insert */
-      int addrInsLoop;    /* Top of the loop for inserting rows */
-      Table *pSelTab;     /* A table that describes the SELECT results */
-
-      regYield = ++pParse->nMem;
-      regRec = ++pParse->nMem;
-      regRowid = ++pParse->nMem;
-      assert(pParse->nTab==1);
-      tdsqlite3MayAbort(pParse);
-      tdsqlite3VdbeAddOp3(v, OP_OpenWrite, 1, pParse->regRoot, iDb);
-      tdsqlite3VdbeChangeP5(v, OPFLAG_P2ISREG);
-      pParse->nTab = 2;
-      addrTop = tdsqlite3VdbeCurrentAddr(v) + 1;
-      tdsqlite3VdbeAddOp3(v, OP_InitCoroutine, regYield, 0, addrTop);
-      if( pParse->nErr ) return;
-      pSelTab = tdsqlite3ResultSetOfSelect(pParse, pSelect, SQLITE_AFF_BLOB);
-      if( pSelTab==0 ) return;
-      assert( p->aCol==0 );
-      p->nCol = p->nNVCol = pSelTab->nCol;
-      p->aCol = pSelTab->aCol;
-      pSelTab->nCol = 0;
-      pSelTab->aCol = 0;
-      tdsqlite3DeleteTable(db, pSelTab);
-      tdsqlite3SelectDestInit(&dest, SRT_Coroutine, regYield);
-      tdsqlite3Select(pParse, pSelect, &dest);
-      if( pParse->nErr ) return;
-      tdsqlite3VdbeEndCoroutine(v, regYield);
-      tdsqlite3VdbeJumpHere(v, addrTop - 1);
-      addrInsLoop = tdsqlite3VdbeAddOp1(v, OP_Yield, dest.iSDParm);
-      VdbeCoverage(v);
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, dest.iSdst, dest.nSdst, regRec);
-      tdsqlite3TableAffinity(v, p, 0);
-      tdsqlite3VdbeAddOp2(v, OP_NewRowid, 1, regRowid);
-      tdsqlite3VdbeAddOp3(v, OP_Insert, 1, regRec, regRowid);
-      tdsqlite3VdbeGoto(v, addrInsLoop);
-      tdsqlite3VdbeJumpHere(v, addrInsLoop);
-      tdsqlite3VdbeAddOp1(v, OP_Close, 1);
-    }
-
-    /* Compute the complete text of the CREATE statement */
-    if( pSelect ){
-      zStmt = createTableStmt(db, p);
-    }else{
-      Token *pEnd2 = tabOpts ? &pParse->sLastToken : pEnd;
-      n = (int)(pEnd2->z - pParse->sNameToken.z);
-      if( pEnd2->z[0]!=';' ) n += pEnd2->n;
-      zStmt = tdsqlite3MPrintf(db, 
-          "CREATE %s %.*s", zType2, n, pParse->sNameToken.z
-      );
-    }
-
-    /* A slot for the record has already been allocated in the 
-    ** SQLITE_MASTER table.  We just need to update that slot with all
-    ** the information we've collected.
-    */
-    tdsqlite3NestedParse(pParse,
-      "UPDATE %Q.%s "
-         "SET type='%s', name=%Q, tbl_name=%Q, rootpage=#%d, sql=%Q "
-       "WHERE rowid=#%d",
-      db->aDb[iDb].zDbSName, MASTER_NAME,
-      zType,
-      p->zName,
-      p->zName,
-      pParse->regRoot,
-      zStmt,
-      pParse->regRowid
-    );
-    tdsqlite3DbFree(db, zStmt);
-    tdsqlite3ChangeCookie(pParse, iDb);
-
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-    /* Check to see if we need to create an sqlite_sequence table for
-    ** keeping track of autoincrement keys.
-    */
-    if( (p->tabFlags & TF_Autoincrement)!=0 ){
-      Db *pDb = &db->aDb[iDb];
-      assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-      if( pDb->pSchema->pSeqTab==0 ){
-        tdsqlite3NestedParse(pParse,
-          "CREATE TABLE %Q.sqlite_sequence(name,seq)",
-          pDb->zDbSName
-        );
-      }
-    }
-#endif
-
-    /* Reparse everything to update our internal data structures */
-    tdsqlite3VdbeAddParseSchemaOp(v, iDb,
-           tdsqlite3MPrintf(db, "tbl_name='%q' AND type!='trigger'", p->zName));
-  }
-
-  /* Add the table to the in-memory representation of the database.
-  */
-  if( db->init.busy ){
-    Table *pOld;
-    Schema *pSchema = p->pSchema;
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    pOld = tdsqlite3HashInsert(&pSchema->tblHash, p->zName, p);
-    if( pOld ){
-      assert( p==pOld );  /* Malloc must have failed inside HashInsert() */
-      tdsqlite3OomFault(db);
-      return;
-    }
-    pParse->pNewTable = 0;
-    db->mDbFlags |= DBFLAG_SchemaChange;
-
-#ifndef SQLITE_OMIT_ALTERTABLE
-    if( !p->pSelect ){
-      const char *zName = (const char *)pParse->sNameToken.z;
-      int nName;
-      assert( !pSelect && pCons && pEnd );
-      if( pCons->z==0 ){
-        pCons = pEnd;
-      }
-      nName = (int)((const char *)pCons->z - zName);
-      p->addColOffset = 13 + tdsqlite3Utf8CharLen(zName, nName);
-    }
-#endif
-  }
-}
-
-#ifndef SQLITE_OMIT_VIEW
-/*
-** The parser calls this routine in order to create a new VIEW
-*/
-SQLITE_PRIVATE void tdsqlite3CreateView(
-  Parse *pParse,     /* The parsing context */
-  Token *pBegin,     /* The CREATE token that begins the statement */
-  Token *pName1,     /* The token that holds the name of the view */
-  Token *pName2,     /* The token that holds the name of the view */
-  ExprList *pCNames, /* Optional list of view column names */
-  Select *pSelect,   /* A SELECT statement that will become the new view */
-  int isTemp,        /* TRUE for a TEMPORARY view */
-  int noErr          /* Suppress error messages if VIEW already exists */
-){
-  Table *p;
-  int n;
-  const char *z;
-  Token sEnd;
-  DbFixer sFix;
-  Token *pName = 0;
-  int iDb;
-  tdsqlite3 *db = pParse->db;
-
-  if( pParse->nVar>0 ){
-    tdsqlite3ErrorMsg(pParse, "parameters are not allowed in views");
-    goto create_view_fail;
-  }
-  tdsqlite3StartTable(pParse, pName1, pName2, isTemp, 1, 0, noErr);
-  p = pParse->pNewTable;
-  if( p==0 || pParse->nErr ) goto create_view_fail;
-  tdsqlite3TwoPartName(pParse, pName1, pName2, &pName);
-  iDb = tdsqlite3SchemaToIndex(db, p->pSchema);
-  tdsqlite3FixInit(&sFix, pParse, iDb, "view", pName);
-  if( tdsqlite3FixSelect(&sFix, pSelect) ) goto create_view_fail;
-
-  /* Make a copy of the entire SELECT statement that defines the view.
-  ** This will force all the Expr.token.z values to be dynamically
-  ** allocated rather than point to the input string - which means that
-  ** they will persist after the current tdsqlite3_exec() call returns.
-  */
-  pSelect->selFlags |= SF_View;
-  if( IN_RENAME_OBJECT ){
-    p->pSelect = pSelect;
-    pSelect = 0;
-  }else{
-    p->pSelect = tdsqlite3SelectDup(db, pSelect, EXPRDUP_REDUCE);
-  }
-  p->pCheck = tdsqlite3ExprListDup(db, pCNames, EXPRDUP_REDUCE);
-  if( db->mallocFailed ) goto create_view_fail;
-
-  /* Locate the end of the CREATE VIEW statement.  Make sEnd point to
-  ** the end.
-  */
-  sEnd = pParse->sLastToken;
-  assert( sEnd.z[0]!=0 || sEnd.n==0 );
-  if( sEnd.z[0]!=';' ){
-    sEnd.z += sEnd.n;
-  }
-  sEnd.n = 0;
-  n = (int)(sEnd.z - pBegin->z);
-  assert( n>0 );
-  z = pBegin->z;
-  while( tdsqlite3Isspace(z[n-1]) ){ n--; }
-  sEnd.z = &z[n-1];
-  sEnd.n = 1;
-
-  /* Use tdsqlite3EndTable() to add the view to the SQLITE_MASTER table */
-  tdsqlite3EndTable(pParse, 0, &sEnd, 0, 0);
-
-create_view_fail:
-  tdsqlite3SelectDelete(db, pSelect);
-  if( IN_RENAME_OBJECT ){
-    tdsqlite3RenameExprlistUnmap(pParse, pCNames);
-  }
-  tdsqlite3ExprListDelete(db, pCNames);
-  return;
-}
-#endif /* SQLITE_OMIT_VIEW */
-
-#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_VIRTUALTABLE)
-/*
-** The Table structure pTable is really a VIEW.  Fill in the names of
-** the columns of the view in the pTable structure.  Return the number
-** of errors.  If an error is seen leave an error message in pParse->zErrMsg.
-*/
-SQLITE_PRIVATE int tdsqlite3ViewGetColumnNames(Parse *pParse, Table *pTable){
-  Table *pSelTab;   /* A fake table from which we get the result set */
-  Select *pSel;     /* Copy of the SELECT that implements the view */
-  int nErr = 0;     /* Number of errors encountered */
-  int n;            /* Temporarily holds the number of cursors assigned */
-  tdsqlite3 *db = pParse->db;  /* Database connection for malloc errors */
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  int rc;
-#endif
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  tdsqlite3_xauth xAuth;       /* Saved xAuth pointer */
-#endif
-
-  assert( pTable );
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  db->nSchemaLock++;
-  rc = tdsqlite3VtabCallConnect(pParse, pTable);
-  db->nSchemaLock--;
-  if( rc ){
-    return 1;
-  }
-  if( IsVirtual(pTable) ) return 0;
-#endif
-
-#ifndef SQLITE_OMIT_VIEW
-  /* A positive nCol means the columns names for this view are
-  ** already known.
-  */
-  if( pTable->nCol>0 ) return 0;
-
-  /* A negative nCol is a special marker meaning that we are currently
-  ** trying to compute the column names.  If we enter this routine with
-  ** a negative nCol, it means two or more views form a loop, like this:
-  **
-  **     CREATE VIEW one AS SELECT * FROM two;
-  **     CREATE VIEW two AS SELECT * FROM one;
-  **
-  ** Actually, the error above is now caught prior to reaching this point.
-  ** But the following test is still important as it does come up
-  ** in the following:
-  ** 
-  **     CREATE TABLE main.ex1(a);
-  **     CREATE TEMP VIEW ex1 AS SELECT a FROM ex1;
-  **     SELECT * FROM temp.ex1;
-  */
-  if( pTable->nCol<0 ){
-    tdsqlite3ErrorMsg(pParse, "view %s is circularly defined", pTable->zName);
-    return 1;
-  }
-  assert( pTable->nCol>=0 );
-
-  /* If we get this far, it means we need to compute the table names.
-  ** Note that the call to tdsqlite3ResultSetOfSelect() will expand any
-  ** "*" elements in the results set of the view and will assign cursors
-  ** to the elements of the FROM clause.  But we do not want these changes
-  ** to be permanent.  So the computation is done on a copy of the SELECT
-  ** statement that defines the view.
-  */
-  assert( pTable->pSelect );
-  pSel = tdsqlite3SelectDup(db, pTable->pSelect, 0);
-  if( pSel ){
-#ifndef SQLITE_OMIT_ALTERTABLE
-    u8 eParseMode = pParse->eParseMode;
-    pParse->eParseMode = PARSE_MODE_NORMAL;
-#endif
-    n = pParse->nTab;
-    tdsqlite3SrcListAssignCursors(pParse, pSel->pSrc);
-    pTable->nCol = -1;
-    DisableLookaside;
-#ifndef SQLITE_OMIT_AUTHORIZATION
-    xAuth = db->xAuth;
-    db->xAuth = 0;
-    pSelTab = tdsqlite3ResultSetOfSelect(pParse, pSel, SQLITE_AFF_NONE);
-    db->xAuth = xAuth;
-#else
-    pSelTab = tdsqlite3ResultSetOfSelect(pParse, pSel, SQLITE_AFF_NONE);
-#endif
-    pParse->nTab = n;
-    if( pSelTab==0 ){
-      pTable->nCol = 0;
-      nErr++;
-    }else if( pTable->pCheck ){
-      /* CREATE VIEW name(arglist) AS ...
-      ** The names of the columns in the table are taken from
-      ** arglist which is stored in pTable->pCheck.  The pCheck field
-      ** normally holds CHECK constraints on an ordinary table, but for
-      ** a VIEW it holds the list of column names.
-      */
-      tdsqlite3ColumnsFromExprList(pParse, pTable->pCheck, 
-                                 &pTable->nCol, &pTable->aCol);
-      if( db->mallocFailed==0 
-       && pParse->nErr==0
-       && pTable->nCol==pSel->pEList->nExpr
-      ){
-        tdsqlite3SelectAddColumnTypeAndCollation(pParse, pTable, pSel,
-                                               SQLITE_AFF_NONE);
-      }
-    }else{
-      /* CREATE VIEW name AS...  without an argument list.  Construct
-      ** the column names from the SELECT statement that defines the view.
-      */
-      assert( pTable->aCol==0 );
-      pTable->nCol = pSelTab->nCol;
-      pTable->aCol = pSelTab->aCol;
-      pSelTab->nCol = 0;
-      pSelTab->aCol = 0;
-      assert( tdsqlite3SchemaMutexHeld(db, 0, pTable->pSchema) );
-    }
-    pTable->nNVCol = pTable->nCol;
-    tdsqlite3DeleteTable(db, pSelTab);
-    tdsqlite3SelectDelete(db, pSel);
-    EnableLookaside;
-#ifndef SQLITE_OMIT_ALTERTABLE
-    pParse->eParseMode = eParseMode;
-#endif
-  } else {
-    nErr++;
-  }
-  pTable->pSchema->schemaFlags |= DB_UnresetViews;
-  if( db->mallocFailed ){
-    tdsqlite3DeleteColumnNames(db, pTable);
-    pTable->aCol = 0;
-    pTable->nCol = 0;
-  }
-#endif /* SQLITE_OMIT_VIEW */
-  return nErr;  
-}
-#endif /* !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_VIRTUALTABLE) */
-
-#ifndef SQLITE_OMIT_VIEW
-/*
-** Clear the column names from every VIEW in database idx.
-*/
-static void sqliteViewResetAll(tdsqlite3 *db, int idx){
-  HashElem *i;
-  assert( tdsqlite3SchemaMutexHeld(db, idx, 0) );
-  if( !DbHasProperty(db, idx, DB_UnresetViews) ) return;
-  for(i=sqliteHashFirst(&db->aDb[idx].pSchema->tblHash); i;i=sqliteHashNext(i)){
-    Table *pTab = sqliteHashData(i);
-    if( pTab->pSelect ){
-      tdsqlite3DeleteColumnNames(db, pTab);
-      pTab->aCol = 0;
-      pTab->nCol = 0;
-    }
-  }
-  DbClearProperty(db, idx, DB_UnresetViews);
-}
-#else
-# define sqliteViewResetAll(A,B)
-#endif /* SQLITE_OMIT_VIEW */
-
-/*
-** This function is called by the VDBE to adjust the internal schema
-** used by SQLite when the btree layer moves a table root page. The
-** root-page of a table or index in database iDb has changed from iFrom
-** to iTo.
-**
-** Ticket #1728:  The symbol table might still contain information
-** on tables and/or indices that are the process of being deleted.
-** If you are unlucky, one of those deleted indices or tables might
-** have the same rootpage number as the real table or index that is
-** being moved.  So we cannot stop searching after the first match 
-** because the first match might be for one of the deleted indices
-** or tables and not the table/index that is actually being moved.
-** We must continue looping until all tables and indices with
-** rootpage==iFrom have been converted to have a rootpage of iTo
-** in order to be certain that we got the right one.
-*/
-#ifndef SQLITE_OMIT_AUTOVACUUM
-SQLITE_PRIVATE void tdsqlite3RootPageMoved(tdsqlite3 *db, int iDb, int iFrom, int iTo){
-  HashElem *pElem;
-  Hash *pHash;
-  Db *pDb;
-
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  pDb = &db->aDb[iDb];
-  pHash = &pDb->pSchema->tblHash;
-  for(pElem=sqliteHashFirst(pHash); pElem; pElem=sqliteHashNext(pElem)){
-    Table *pTab = sqliteHashData(pElem);
-    if( pTab->tnum==iFrom ){
-      pTab->tnum = iTo;
-    }
-  }
-  pHash = &pDb->pSchema->idxHash;
-  for(pElem=sqliteHashFirst(pHash); pElem; pElem=sqliteHashNext(pElem)){
-    Index *pIdx = sqliteHashData(pElem);
-    if( pIdx->tnum==iFrom ){
-      pIdx->tnum = iTo;
-    }
-  }
-}
-#endif
-
-/*
-** Write code to erase the table with root-page iTable from database iDb.
-** Also write code to modify the sqlite_master table and internal schema
-** if a root-page of another table is moved by the btree-layer whilst
-** erasing iTable (this can happen with an auto-vacuum database).
-*/ 
-static void destroyRootPage(Parse *pParse, int iTable, int iDb){
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  int r1 = tdsqlite3GetTempReg(pParse);
-  if( iTable<2 ) tdsqlite3ErrorMsg(pParse, "corrupt schema");
-  tdsqlite3VdbeAddOp3(v, OP_Destroy, iTable, r1, iDb);
-  tdsqlite3MayAbort(pParse);
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  /* OP_Destroy stores an in integer r1. If this integer
-  ** is non-zero, then it is the root page number of a table moved to
-  ** location iTable. The following code modifies the sqlite_master table to
-  ** reflect this.
-  **
-  ** The "#NNN" in the SQL is a special constant that means whatever value
-  ** is in register NNN.  See grammar rules associated with the TK_REGISTER
-  ** token for additional information.
-  */
-  tdsqlite3NestedParse(pParse, 
-     "UPDATE %Q.%s SET rootpage=%d WHERE #%d AND rootpage=#%d",
-     pParse->db->aDb[iDb].zDbSName, MASTER_NAME, iTable, r1, r1);
-#endif
-  tdsqlite3ReleaseTempReg(pParse, r1);
-}
-
-/*
-** Write VDBE code to erase table pTab and all associated indices on disk.
-** Code to update the sqlite_master tables and internal schema definitions
-** in case a root-page belonging to another table is moved by the btree layer
-** is also added (this can happen with an auto-vacuum database).
-*/
-static void destroyTable(Parse *pParse, Table *pTab){
-  /* If the database may be auto-vacuum capable (if SQLITE_OMIT_AUTOVACUUM
-  ** is not defined), then it is important to call OP_Destroy on the
-  ** table and index root-pages in order, starting with the numerically 
-  ** largest root-page number. This guarantees that none of the root-pages
-  ** to be destroyed is relocated by an earlier OP_Destroy. i.e. if the
-  ** following were coded:
-  **
-  ** OP_Destroy 4 0
-  ** ...
-  ** OP_Destroy 5 0
-  **
-  ** and root page 5 happened to be the largest root-page number in the
-  ** database, then root page 5 would be moved to page 4 by the 
-  ** "OP_Destroy 4 0" opcode. The subsequent "OP_Destroy 5 0" would hit
-  ** a free-list page.
-  */
-  int iTab = pTab->tnum;
-  int iDestroyed = 0;
-
-  while( 1 ){
-    Index *pIdx;
-    int iLargest = 0;
-
-    if( iDestroyed==0 || iTab<iDestroyed ){
-      iLargest = iTab;
-    }
-    for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-      int iIdx = pIdx->tnum;
-      assert( pIdx->pSchema==pTab->pSchema );
-      if( (iDestroyed==0 || (iIdx<iDestroyed)) && iIdx>iLargest ){
-        iLargest = iIdx;
-      }
-    }
-    if( iLargest==0 ){
-      return;
-    }else{
-      int iDb = tdsqlite3SchemaToIndex(pParse->db, pTab->pSchema);
-      assert( iDb>=0 && iDb<pParse->db->nDb );
-      destroyRootPage(pParse, iLargest, iDb);
-      iDestroyed = iLargest;
-    }
-  }
-}
-
-/*
-** Remove entries from the sqlite_statN tables (for N in (1,2,3))
-** after a DROP INDEX or DROP TABLE command.
-*/
-static void tdsqlite3ClearStatTables(
-  Parse *pParse,         /* The parsing context */
-  int iDb,               /* The database number */
-  const char *zType,     /* "idx" or "tbl" */
-  const char *zName      /* Name of index or table */
-){
-  int i;
-  const char *zDbName = pParse->db->aDb[iDb].zDbSName;
-  for(i=1; i<=4; i++){
-    char zTab[24];
-    tdsqlite3_snprintf(sizeof(zTab),zTab,"sqlite_stat%d",i);
-    if( tdsqlite3FindTable(pParse->db, zTab, zDbName) ){
-      tdsqlite3NestedParse(pParse,
-        "DELETE FROM %Q.%s WHERE %s=%Q",
-        zDbName, zTab, zType, zName
-      );
-    }
-  }
-}
-
-/*
-** Generate code to drop a table.
-*/
-SQLITE_PRIVATE void tdsqlite3CodeDropTable(Parse *pParse, Table *pTab, int iDb, int isView){
-  Vdbe *v;
-  tdsqlite3 *db = pParse->db;
-  Trigger *pTrigger;
-  Db *pDb = &db->aDb[iDb];
-
-  v = tdsqlite3GetVdbe(pParse);
-  assert( v!=0 );
-  tdsqlite3BeginWriteOperation(pParse, 1, iDb);
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( IsVirtual(pTab) ){
-    tdsqlite3VdbeAddOp0(v, OP_VBegin);
-  }
-#endif
-
-  /* Drop all triggers associated with the table being dropped. Code
-  ** is generated to remove entries from sqlite_master and/or
-  ** sqlite_temp_master if required.
-  */
-  pTrigger = tdsqlite3TriggerList(pParse, pTab);
-  while( pTrigger ){
-    assert( pTrigger->pSchema==pTab->pSchema || 
-        pTrigger->pSchema==db->aDb[1].pSchema );
-    tdsqlite3DropTriggerPtr(pParse, pTrigger);
-    pTrigger = pTrigger->pNext;
-  }
-
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-  /* Remove any entries of the sqlite_sequence table associated with
-  ** the table being dropped. This is done before the table is dropped
-  ** at the btree level, in case the sqlite_sequence table needs to
-  ** move as a result of the drop (can happen in auto-vacuum mode).
-  */
-  if( pTab->tabFlags & TF_Autoincrement ){
-    tdsqlite3NestedParse(pParse,
-      "DELETE FROM %Q.sqlite_sequence WHERE name=%Q",
-      pDb->zDbSName, pTab->zName
-    );
-  }
-#endif
-
-  /* Drop all SQLITE_MASTER table and index entries that refer to the
-  ** table. The program name loops through the master table and deletes
-  ** every row that refers to a table of the same name as the one being
-  ** dropped. Triggers are handled separately because a trigger can be
-  ** created in the temp database that refers to a table in another
-  ** database.
-  */
-  tdsqlite3NestedParse(pParse, 
-      "DELETE FROM %Q.%s WHERE tbl_name=%Q and type!='trigger'",
-      pDb->zDbSName, MASTER_NAME, pTab->zName);
-  if( !isView && !IsVirtual(pTab) ){
-    destroyTable(pParse, pTab);
-  }
-
-  /* Remove the table entry from SQLite's internal schema and modify
-  ** the schema cookie.
-  */
-  if( IsVirtual(pTab) ){
-    tdsqlite3VdbeAddOp4(v, OP_VDestroy, iDb, 0, 0, pTab->zName, 0);
-    tdsqlite3MayAbort(pParse);
-  }
-  tdsqlite3VdbeAddOp4(v, OP_DropTable, iDb, 0, 0, pTab->zName, 0);
-  tdsqlite3ChangeCookie(pParse, iDb);
-  sqliteViewResetAll(db, iDb);
-}
-
-/*
-** Return TRUE if shadow tables should be read-only in the current
-** context.
-*/
-SQLITE_PRIVATE int tdsqlite3ReadOnlyShadowTables(tdsqlite3 *db){
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( (db->flags & SQLITE_Defensive)!=0
-   && db->pVtabCtx==0
-   && db->nVdbeExec==0
-  ){
-    return 1;
-  }
-#endif
-  return 0;
-}
-
-/*
-** Return true if it is not allowed to drop the given table
-*/
-static int tableMayNotBeDropped(tdsqlite3 *db, Table *pTab){
-  if( tdsqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 ){
-    if( tdsqlite3StrNICmp(pTab->zName+7, "stat", 4)==0 ) return 0;
-    if( tdsqlite3StrNICmp(pTab->zName+7, "parameters", 10)==0 ) return 0;
-    return 1;
-  }
-  if( (pTab->tabFlags & TF_Shadow)!=0 && tdsqlite3ReadOnlyShadowTables(db) ){
-    return 1;
-  }
-  return 0;
-}
-
-/*
-** This routine is called to do the work of a DROP TABLE statement.
-** pName is the name of the table to be dropped.
-*/
-SQLITE_PRIVATE void tdsqlite3DropTable(Parse *pParse, SrcList *pName, int isView, int noErr){
-  Table *pTab;
-  Vdbe *v;
-  tdsqlite3 *db = pParse->db;
-  int iDb;
-
-  if( db->mallocFailed ){
-    goto exit_drop_table;
-  }
-  assert( pParse->nErr==0 );
-  assert( pName->nSrc==1 );
-  if( tdsqlite3ReadSchema(pParse) ) goto exit_drop_table;
-  if( noErr ) db->suppressErr++;
-  assert( isView==0 || isView==LOCATE_VIEW );
-  pTab = tdsqlite3LocateTableItem(pParse, isView, &pName->a[0]);
-  if( noErr ) db->suppressErr--;
-
-  if( pTab==0 ){
-    if( noErr ) tdsqlite3CodeVerifyNamedSchema(pParse, pName->a[0].zDatabase);
-    goto exit_drop_table;
-  }
-  iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-  assert( iDb>=0 && iDb<db->nDb );
-
-  /* If pTab is a virtual table, call ViewGetColumnNames() to ensure
-  ** it is initialized.
-  */
-  if( IsVirtual(pTab) && tdsqlite3ViewGetColumnNames(pParse, pTab) ){
-    goto exit_drop_table;
-  }
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  {
-    int code;
-    const char *zTab = SCHEMA_TABLE(iDb);
-    const char *zDb = db->aDb[iDb].zDbSName;
-    const char *zArg2 = 0;
-    if( tdsqlite3AuthCheck(pParse, SQLITE_DELETE, zTab, 0, zDb)){
-      goto exit_drop_table;
-    }
-    if( isView ){
-      if( !OMIT_TEMPDB && iDb==1 ){
-        code = SQLITE_DROP_TEMP_VIEW;
-      }else{
-        code = SQLITE_DROP_VIEW;
-      }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    }else if( IsVirtual(pTab) ){
-      code = SQLITE_DROP_VTABLE;
-      zArg2 = tdsqlite3GetVTable(db, pTab)->pMod->zName;
-#endif
-    }else{
-      if( !OMIT_TEMPDB && iDb==1 ){
-        code = SQLITE_DROP_TEMP_TABLE;
-      }else{
-        code = SQLITE_DROP_TABLE;
-      }
-    }
-    if( tdsqlite3AuthCheck(pParse, code, pTab->zName, zArg2, zDb) ){
-      goto exit_drop_table;
-    }
-    if( tdsqlite3AuthCheck(pParse, SQLITE_DELETE, pTab->zName, 0, zDb) ){
-      goto exit_drop_table;
-    }
-  }
-#endif
-  if( tableMayNotBeDropped(db, pTab) ){
-    tdsqlite3ErrorMsg(pParse, "table %s may not be dropped", pTab->zName);
-    goto exit_drop_table;
-  }
-
-#ifndef SQLITE_OMIT_VIEW
-  /* Ensure DROP TABLE is not used on a view, and DROP VIEW is not used
-  ** on a table.
-  */
-  if( isView && pTab->pSelect==0 ){
-    tdsqlite3ErrorMsg(pParse, "use DROP TABLE to delete table %s", pTab->zName);
-    goto exit_drop_table;
-  }
-  if( !isView && pTab->pSelect ){
-    tdsqlite3ErrorMsg(pParse, "use DROP VIEW to delete view %s", pTab->zName);
-    goto exit_drop_table;
-  }
-#endif
-
-  /* Generate code to remove the table from the master table
-  ** on disk.
-  */
-  v = tdsqlite3GetVdbe(pParse);
-  if( v ){
-    tdsqlite3BeginWriteOperation(pParse, 1, iDb);
-    if( !isView ){
-      tdsqlite3ClearStatTables(pParse, iDb, "tbl", pTab->zName);
-      tdsqlite3FkDropTable(pParse, pName, pTab);
-    }
-    tdsqlite3CodeDropTable(pParse, pTab, iDb, isView);
-  }
-
-exit_drop_table:
-  tdsqlite3SrcListDelete(db, pName);
-}
-
-/*
-** This routine is called to create a new foreign key on the table
-** currently under construction.  pFromCol determines which columns
-** in the current table point to the foreign key.  If pFromCol==0 then
-** connect the key to the last column inserted.  pTo is the name of
-** the table referred to (a.k.a the "parent" table).  pToCol is a list
-** of tables in the parent pTo table.  flags contains all
-** information about the conflict resolution algorithms specified
-** in the ON DELETE, ON UPDATE and ON INSERT clauses.
-**
-** An FKey structure is created and added to the table currently
-** under construction in the pParse->pNewTable field.
-**
-** The foreign key is set for IMMEDIATE processing.  A subsequent call
-** to tdsqlite3DeferForeignKey() might change this to DEFERRED.
-*/
-SQLITE_PRIVATE void tdsqlite3CreateForeignKey(
-  Parse *pParse,       /* Parsing context */
-  ExprList *pFromCol,  /* Columns in this table that point to other table */
-  Token *pTo,          /* Name of the other table */
-  ExprList *pToCol,    /* Columns in the other table */
-  int flags            /* Conflict resolution algorithms. */
-){
-  tdsqlite3 *db = pParse->db;
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-  FKey *pFKey = 0;
-  FKey *pNextTo;
-  Table *p = pParse->pNewTable;
-  int nByte;
-  int i;
-  int nCol;
-  char *z;
-
-  assert( pTo!=0 );
-  if( p==0 || IN_DECLARE_VTAB ) goto fk_end;
-  if( pFromCol==0 ){
-    int iCol = p->nCol-1;
-    if( NEVER(iCol<0) ) goto fk_end;
-    if( pToCol && pToCol->nExpr!=1 ){
-      tdsqlite3ErrorMsg(pParse, "foreign key on %s"
-         " should reference only one column of table %T",
-         p->aCol[iCol].zName, pTo);
-      goto fk_end;
-    }
-    nCol = 1;
-  }else if( pToCol && pToCol->nExpr!=pFromCol->nExpr ){
-    tdsqlite3ErrorMsg(pParse,
-        "number of columns in foreign key does not match the number of "
-        "columns in the referenced table");
-    goto fk_end;
-  }else{
-    nCol = pFromCol->nExpr;
-  }
-  nByte = sizeof(*pFKey) + (nCol-1)*sizeof(pFKey->aCol[0]) + pTo->n + 1;
-  if( pToCol ){
-    for(i=0; i<pToCol->nExpr; i++){
-      nByte += tdsqlite3Strlen30(pToCol->a[i].zEName) + 1;
-    }
-  }
-  pFKey = tdsqlite3DbMallocZero(db, nByte );
-  if( pFKey==0 ){
-    goto fk_end;
-  }
-  pFKey->pFrom = p;
-  pFKey->pNextFrom = p->pFKey;
-  z = (char*)&pFKey->aCol[nCol];
-  pFKey->zTo = z;
-  if( IN_RENAME_OBJECT ){
-    tdsqlite3RenameTokenMap(pParse, (void*)z, pTo);
-  }
-  memcpy(z, pTo->z, pTo->n);
-  z[pTo->n] = 0;
-  tdsqlite3Dequote(z);
-  z += pTo->n+1;
-  pFKey->nCol = nCol;
-  if( pFromCol==0 ){
-    pFKey->aCol[0].iFrom = p->nCol-1;
-  }else{
-    for(i=0; i<nCol; i++){
-      int j;
-      for(j=0; j<p->nCol; j++){
-        if( tdsqlite3StrICmp(p->aCol[j].zName, pFromCol->a[i].zEName)==0 ){
-          pFKey->aCol[i].iFrom = j;
-          break;
-        }
-      }
-      if( j>=p->nCol ){
-        tdsqlite3ErrorMsg(pParse, 
-          "unknown column \"%s\" in foreign key definition", 
-          pFromCol->a[i].zEName);
-        goto fk_end;
-      }
-      if( IN_RENAME_OBJECT ){
-        tdsqlite3RenameTokenRemap(pParse, &pFKey->aCol[i], pFromCol->a[i].zEName);
-      }
-    }
-  }
-  if( pToCol ){
-    for(i=0; i<nCol; i++){
-      int n = tdsqlite3Strlen30(pToCol->a[i].zEName);
-      pFKey->aCol[i].zCol = z;
-      if( IN_RENAME_OBJECT ){
-        tdsqlite3RenameTokenRemap(pParse, z, pToCol->a[i].zEName);
-      }
-      memcpy(z, pToCol->a[i].zEName, n);
-      z[n] = 0;
-      z += n+1;
-    }
-  }
-  pFKey->isDeferred = 0;
-  pFKey->aAction[0] = (u8)(flags & 0xff);            /* ON DELETE action */
-  pFKey->aAction[1] = (u8)((flags >> 8 ) & 0xff);    /* ON UPDATE action */
-
-  assert( tdsqlite3SchemaMutexHeld(db, 0, p->pSchema) );
-  pNextTo = (FKey *)tdsqlite3HashInsert(&p->pSchema->fkeyHash, 
-      pFKey->zTo, (void *)pFKey
-  );
-  if( pNextTo==pFKey ){
-    tdsqlite3OomFault(db);
-    goto fk_end;
-  }
-  if( pNextTo ){
-    assert( pNextTo->pPrevTo==0 );
-    pFKey->pNextTo = pNextTo;
-    pNextTo->pPrevTo = pFKey;
-  }
-
-  /* Link the foreign key to the table as the last step.
-  */
-  p->pFKey = pFKey;
-  pFKey = 0;
-
-fk_end:
-  tdsqlite3DbFree(db, pFKey);
-#endif /* !defined(SQLITE_OMIT_FOREIGN_KEY) */
-  tdsqlite3ExprListDelete(db, pFromCol);
-  tdsqlite3ExprListDelete(db, pToCol);
-}
-
-/*
-** This routine is called when an INITIALLY IMMEDIATE or INITIALLY DEFERRED
-** clause is seen as part of a foreign key definition.  The isDeferred
-** parameter is 1 for INITIALLY DEFERRED and 0 for INITIALLY IMMEDIATE.
-** The behavior of the most recently created foreign key is adjusted
-** accordingly.
-*/
-SQLITE_PRIVATE void tdsqlite3DeferForeignKey(Parse *pParse, int isDeferred){
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-  Table *pTab;
-  FKey *pFKey;
-  if( (pTab = pParse->pNewTable)==0 || (pFKey = pTab->pFKey)==0 ) return;
-  assert( isDeferred==0 || isDeferred==1 ); /* EV: R-30323-21917 */
-  pFKey->isDeferred = (u8)isDeferred;
-#endif
-}
-
-/*
-** Generate code that will erase and refill index *pIdx.  This is
-** used to initialize a newly created index or to recompute the
-** content of an index in response to a REINDEX command.
-**
-** if memRootPage is not negative, it means that the index is newly
-** created.  The register specified by memRootPage contains the
-** root page number of the index.  If memRootPage is negative, then
-** the index already exists and must be cleared before being refilled and
-** the root page number of the index is taken from pIndex->tnum.
-*/
-static void tdsqlite3RefillIndex(Parse *pParse, Index *pIndex, int memRootPage){
-  Table *pTab = pIndex->pTable;  /* The table that is indexed */
-  int iTab = pParse->nTab++;     /* Btree cursor used for pTab */
-  int iIdx = pParse->nTab++;     /* Btree cursor used for pIndex */
-  int iSorter;                   /* Cursor opened by OpenSorter (if in use) */
-  int addr1;                     /* Address of top of loop */
-  int addr2;                     /* Address to jump to for next iteration */
-  int tnum;                      /* Root page of index */
-  int iPartIdxLabel;             /* Jump to this label to skip a row */
-  Vdbe *v;                       /* Generate code into this virtual machine */
-  KeyInfo *pKey;                 /* KeyInfo for index */
-  int regRecord;                 /* Register holding assembled index record */
-  tdsqlite3 *db = pParse->db;      /* The database connection */
-  int iDb = tdsqlite3SchemaToIndex(db, pIndex->pSchema);
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  if( tdsqlite3AuthCheck(pParse, SQLITE_REINDEX, pIndex->zName, 0,
-      db->aDb[iDb].zDbSName ) ){
-    return;
-  }
-#endif
-
-  /* Require a write-lock on the table to perform this operation */
-  tdsqlite3TableLock(pParse, iDb, pTab->tnum, 1, pTab->zName);
-
-  v = tdsqlite3GetVdbe(pParse);
-  if( v==0 ) return;
-  if( memRootPage>=0 ){
-    tnum = memRootPage;
-  }else{
-    tnum = pIndex->tnum;
-  }
-  pKey = tdsqlite3KeyInfoOfIndex(pParse, pIndex);
-  assert( pKey!=0 || db->mallocFailed || pParse->nErr );
-
-  /* Open the sorter cursor if we are to use one. */
-  iSorter = pParse->nTab++;
-  tdsqlite3VdbeAddOp4(v, OP_SorterOpen, iSorter, 0, pIndex->nKeyCol, (char*)
-                    tdsqlite3KeyInfoRef(pKey), P4_KEYINFO);
-
-  /* Open the table. Loop through all rows of the table, inserting index
-  ** records into the sorter. */
-  tdsqlite3OpenTable(pParse, iTab, iDb, pTab, OP_OpenRead);
-  addr1 = tdsqlite3VdbeAddOp2(v, OP_Rewind, iTab, 0); VdbeCoverage(v);
-  regRecord = tdsqlite3GetTempReg(pParse);
-  tdsqlite3MultiWrite(pParse);
-
-  tdsqlite3GenerateIndexKey(pParse,pIndex,iTab,regRecord,0,&iPartIdxLabel,0,0);
-  tdsqlite3VdbeAddOp2(v, OP_SorterInsert, iSorter, regRecord);
-  tdsqlite3ResolvePartIdxLabel(pParse, iPartIdxLabel);
-  tdsqlite3VdbeAddOp2(v, OP_Next, iTab, addr1+1); VdbeCoverage(v);
-  tdsqlite3VdbeJumpHere(v, addr1);
-  if( memRootPage<0 ) tdsqlite3VdbeAddOp2(v, OP_Clear, tnum, iDb);
-  tdsqlite3VdbeAddOp4(v, OP_OpenWrite, iIdx, tnum, iDb, 
-                    (char *)pKey, P4_KEYINFO);
-  tdsqlite3VdbeChangeP5(v, OPFLAG_BULKCSR|((memRootPage>=0)?OPFLAG_P2ISREG:0));
-
-  addr1 = tdsqlite3VdbeAddOp2(v, OP_SorterSort, iSorter, 0); VdbeCoverage(v);
-  if( IsUniqueIndex(pIndex) ){
-    int j2 = tdsqlite3VdbeGoto(v, 1);
-    addr2 = tdsqlite3VdbeCurrentAddr(v);
-    tdsqlite3VdbeVerifyAbortable(v, OE_Abort);
-    tdsqlite3VdbeAddOp4Int(v, OP_SorterCompare, iSorter, j2, regRecord,
-                         pIndex->nKeyCol); VdbeCoverage(v);
-    tdsqlite3UniqueConstraint(pParse, OE_Abort, pIndex);
-    tdsqlite3VdbeJumpHere(v, j2);
-  }else{
-    /* Most CREATE INDEX and REINDEX statements that are not UNIQUE can not
-    ** abort. The exception is if one of the indexed expressions contains a
-    ** user function that throws an exception when it is evaluated. But the
-    ** overhead of adding a statement journal to a CREATE INDEX statement is
-    ** very small (since most of the pages written do not contain content that
-    ** needs to be restored if the statement aborts), so we call 
-    ** tdsqlite3MayAbort() for all CREATE INDEX statements.  */
-    tdsqlite3MayAbort(pParse);
-    addr2 = tdsqlite3VdbeCurrentAddr(v);
-  }
-  tdsqlite3VdbeAddOp3(v, OP_SorterData, iSorter, regRecord, iIdx);
-  if( !pIndex->bAscKeyBug ){
-    /* This OP_SeekEnd opcode makes index insert for a REINDEX go much
-    ** faster by avoiding unnecessary seeks.  But the optimization does
-    ** not work for UNIQUE constraint indexes on WITHOUT ROWID tables
-    ** with DESC primary keys, since those indexes have there keys in
-    ** a different order from the main table.
-    ** See ticket: https://www.sqlite.org/src/info/bba7b69f9849b5bf
-    */
-    tdsqlite3VdbeAddOp1(v, OP_SeekEnd, iIdx);
-  }
-  tdsqlite3VdbeAddOp2(v, OP_IdxInsert, iIdx, regRecord);
-  tdsqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);
-  tdsqlite3ReleaseTempReg(pParse, regRecord);
-  tdsqlite3VdbeAddOp2(v, OP_SorterNext, iSorter, addr2); VdbeCoverage(v);
-  tdsqlite3VdbeJumpHere(v, addr1);
-
-  tdsqlite3VdbeAddOp1(v, OP_Close, iTab);
-  tdsqlite3VdbeAddOp1(v, OP_Close, iIdx);
-  tdsqlite3VdbeAddOp1(v, OP_Close, iSorter);
-}
-
-/*
-** Allocate heap space to hold an Index object with nCol columns.
-**
-** Increase the allocation size to provide an extra nExtra bytes
-** of 8-byte aligned space after the Index object and return a
-** pointer to this extra space in *ppExtra.
-*/
-SQLITE_PRIVATE Index *tdsqlite3AllocateIndexObject(
-  tdsqlite3 *db,         /* Database connection */
-  i16 nCol,            /* Total number of columns in the index */
-  int nExtra,          /* Number of bytes of extra space to alloc */
-  char **ppExtra       /* Pointer to the "extra" space */
-){
-  Index *p;            /* Allocated index object */
-  int nByte;           /* Bytes of space for Index object + arrays */
-
-  nByte = ROUND8(sizeof(Index)) +              /* Index structure  */
-          ROUND8(sizeof(char*)*nCol) +         /* Index.azColl     */
-          ROUND8(sizeof(LogEst)*(nCol+1) +     /* Index.aiRowLogEst   */
-                 sizeof(i16)*nCol +            /* Index.aiColumn   */
-                 sizeof(u8)*nCol);             /* Index.aSortOrder */
-  p = tdsqlite3DbMallocZero(db, nByte + nExtra);
-  if( p ){
-    char *pExtra = ((char*)p)+ROUND8(sizeof(Index));
-    p->azColl = (const char**)pExtra; pExtra += ROUND8(sizeof(char*)*nCol);
-    p->aiRowLogEst = (LogEst*)pExtra; pExtra += sizeof(LogEst)*(nCol+1);
-    p->aiColumn = (i16*)pExtra;       pExtra += sizeof(i16)*nCol;
-    p->aSortOrder = (u8*)pExtra;
-    p->nColumn = nCol;
-    p->nKeyCol = nCol - 1;
-    *ppExtra = ((char*)p) + nByte;
-  }
-  return p;
-}
-
-/*
-** If expression list pList contains an expression that was parsed with
-** an explicit "NULLS FIRST" or "NULLS LAST" clause, leave an error in
-** pParse and return non-zero. Otherwise, return zero.
-*/
-SQLITE_PRIVATE int tdsqlite3HasExplicitNulls(Parse *pParse, ExprList *pList){
-  if( pList ){
-    int i;
-    for(i=0; i<pList->nExpr; i++){
-      if( pList->a[i].bNulls ){
-        u8 sf = pList->a[i].sortFlags;
-        tdsqlite3ErrorMsg(pParse, "unsupported use of NULLS %s", 
-            (sf==0 || sf==3) ? "FIRST" : "LAST"
-        );
-        return 1;
-      }
-    }
-  }
-  return 0;
-}
-
-/*
-** Create a new index for an SQL table.  pName1.pName2 is the name of the index 
-** and pTblList is the name of the table that is to be indexed.  Both will 
-** be NULL for a primary key or an index that is created to satisfy a
-** UNIQUE constraint.  If pTable and pIndex are NULL, use pParse->pNewTable
-** as the table to be indexed.  pParse->pNewTable is a table that is
-** currently being constructed by a CREATE TABLE statement.
-**
-** pList is a list of columns to be indexed.  pList will be NULL if this
-** is a primary key or unique-constraint on the most recent column added
-** to the table currently under construction.  
-*/
-SQLITE_PRIVATE void tdsqlite3CreateIndex(
-  Parse *pParse,     /* All information about this parse */
-  Token *pName1,     /* First part of index name. May be NULL */
-  Token *pName2,     /* Second part of index name. May be NULL */
-  SrcList *pTblName, /* Table to index. Use pParse->pNewTable if 0 */
-  ExprList *pList,   /* A list of columns to be indexed */
-  int onError,       /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */
-  Token *pStart,     /* The CREATE token that begins this statement */
-  Expr *pPIWhere,    /* WHERE clause for partial indices */
-  int sortOrder,     /* Sort order of primary key when pList==NULL */
-  int ifNotExist,    /* Omit error if index already exists */
-  u8 idxType         /* The index type */
-){
-  Table *pTab = 0;     /* Table to be indexed */
-  Index *pIndex = 0;   /* The index to be created */
-  char *zName = 0;     /* Name of the index */
-  int nName;           /* Number of characters in zName */
-  int i, j;
-  DbFixer sFix;        /* For assigning database names to pTable */
-  int sortOrderMask;   /* 1 to honor DESC in index.  0 to ignore. */
-  tdsqlite3 *db = pParse->db;
-  Db *pDb;             /* The specific table containing the indexed database */
-  int iDb;             /* Index of the database that is being written */
-  Token *pName = 0;    /* Unqualified name of the index to create */
-  struct ExprList_item *pListItem; /* For looping over pList */
-  int nExtra = 0;                  /* Space allocated for zExtra[] */
-  int nExtraCol;                   /* Number of extra columns needed */
-  char *zExtra = 0;                /* Extra space after the Index object */
-  Index *pPk = 0;      /* PRIMARY KEY index for WITHOUT ROWID tables */
-
-  if( db->mallocFailed || pParse->nErr>0 ){
-    goto exit_create_index;
-  }
-  if( IN_DECLARE_VTAB && idxType!=SQLITE_IDXTYPE_PRIMARYKEY ){
-    goto exit_create_index;
-  }
-  if( SQLITE_OK!=tdsqlite3ReadSchema(pParse) ){
-    goto exit_create_index;
-  }
-  if( tdsqlite3HasExplicitNulls(pParse, pList) ){
-    goto exit_create_index;
-  }
-
-  /*
-  ** Find the table that is to be indexed.  Return early if not found.
-  */
-  if( pTblName!=0 ){
-
-    /* Use the two-part index name to determine the database 
-    ** to search for the table. 'Fix' the table name to this db
-    ** before looking up the table.
-    */
-    assert( pName1 && pName2 );
-    iDb = tdsqlite3TwoPartName(pParse, pName1, pName2, &pName);
-    if( iDb<0 ) goto exit_create_index;
-    assert( pName && pName->z );
-
-#ifndef SQLITE_OMIT_TEMPDB
-    /* If the index name was unqualified, check if the table
-    ** is a temp table. If so, set the database to 1. Do not do this
-    ** if initialising a database schema.
-    */
-    if( !db->init.busy ){
-      pTab = tdsqlite3SrcListLookup(pParse, pTblName);
-      if( pName2->n==0 && pTab && pTab->pSchema==db->aDb[1].pSchema ){
-        iDb = 1;
-      }
-    }
-#endif
-
-    tdsqlite3FixInit(&sFix, pParse, iDb, "index", pName);
-    if( tdsqlite3FixSrcList(&sFix, pTblName) ){
-      /* Because the parser constructs pTblName from a single identifier,
-      ** tdsqlite3FixSrcList can never fail. */
-      assert(0);
-    }
-    pTab = tdsqlite3LocateTableItem(pParse, 0, &pTblName->a[0]);
-    assert( db->mallocFailed==0 || pTab==0 );
-    if( pTab==0 ) goto exit_create_index;
-    if( iDb==1 && db->aDb[iDb].pSchema!=pTab->pSchema ){
-      tdsqlite3ErrorMsg(pParse, 
-           "cannot create a TEMP index on non-TEMP table \"%s\"",
-           pTab->zName);
-      goto exit_create_index;
-    }
-    if( !HasRowid(pTab) ) pPk = tdsqlite3PrimaryKeyIndex(pTab);
-  }else{
-    assert( pName==0 );
-    assert( pStart==0 );
-    pTab = pParse->pNewTable;
-    if( !pTab ) goto exit_create_index;
-    iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-  }
-  pDb = &db->aDb[iDb];
-
-  assert( pTab!=0 );
-  assert( pParse->nErr==0 );
-  if( tdsqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 
-       && db->init.busy==0
-       && pTblName!=0
-#if SQLITE_USER_AUTHENTICATION
-       && tdsqlite3UserAuthTable(pTab->zName)==0
-#endif
-#ifdef SQLITE_ALLOW_SQLITE_MASTER_INDEX
-       && tdsqlite3StrICmp(&pTab->zName[7],"master")!=0
-#endif
- ){
-    tdsqlite3ErrorMsg(pParse, "table %s may not be indexed", pTab->zName);
-    goto exit_create_index;
-  }
-#ifndef SQLITE_OMIT_VIEW
-  if( pTab->pSelect ){
-    tdsqlite3ErrorMsg(pParse, "views may not be indexed");
-    goto exit_create_index;
-  }
-#endif
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( IsVirtual(pTab) ){
-    tdsqlite3ErrorMsg(pParse, "virtual tables may not be indexed");
-    goto exit_create_index;
-  }
-#endif
-
-  /*
-  ** Find the name of the index.  Make sure there is not already another
-  ** index or table with the same name.  
-  **
-  ** Exception:  If we are reading the names of permanent indices from the
-  ** sqlite_master table (because some other process changed the schema) and
-  ** one of the index names collides with the name of a temporary table or
-  ** index, then we will continue to process this index.
-  **
-  ** If pName==0 it means that we are
-  ** dealing with a primary key or UNIQUE constraint.  We have to invent our
-  ** own name.
-  */
-  if( pName ){
-    zName = tdsqlite3NameFromToken(db, pName);
-    if( zName==0 ) goto exit_create_index;
-    assert( pName->z!=0 );
-    if( SQLITE_OK!=tdsqlite3CheckObjectName(pParse, zName,"index",pTab->zName) ){
-      goto exit_create_index;
-    }
-    if( !IN_RENAME_OBJECT ){
-      if( !db->init.busy ){
-        if( tdsqlite3FindTable(db, zName, 0)!=0 ){
-          tdsqlite3ErrorMsg(pParse, "there is already a table named %s", zName);
-          goto exit_create_index;
-        }
-      }
-      if( tdsqlite3FindIndex(db, zName, pDb->zDbSName)!=0 ){
-        if( !ifNotExist ){
-          tdsqlite3ErrorMsg(pParse, "index %s already exists", zName);
-        }else{
-          assert( !db->init.busy );
-          tdsqlite3CodeVerifySchema(pParse, iDb);
-        }
-        goto exit_create_index;
-      }
-    }
-  }else{
-    int n;
-    Index *pLoop;
-    for(pLoop=pTab->pIndex, n=1; pLoop; pLoop=pLoop->pNext, n++){}
-    zName = tdsqlite3MPrintf(db, "sqlite_autoindex_%s_%d", pTab->zName, n);
-    if( zName==0 ){
-      goto exit_create_index;
-    }
-
-    /* Automatic index names generated from within tdsqlite3_declare_vtab()
-    ** must have names that are distinct from normal automatic index names.
-    ** The following statement converts "tdsqlite3_autoindex..." into
-    ** "tdsqlite3_butoindex..." in order to make the names distinct.
-    ** The "vtab_err.test" test demonstrates the need of this statement. */
-    if( IN_SPECIAL_PARSE ) zName[7]++;
-  }
-
-  /* Check for authorization to create an index.
-  */
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  if( !IN_RENAME_OBJECT ){
-    const char *zDb = pDb->zDbSName;
-    if( tdsqlite3AuthCheck(pParse, SQLITE_INSERT, SCHEMA_TABLE(iDb), 0, zDb) ){
-      goto exit_create_index;
-    }
-    i = SQLITE_CREATE_INDEX;
-    if( !OMIT_TEMPDB && iDb==1 ) i = SQLITE_CREATE_TEMP_INDEX;
-    if( tdsqlite3AuthCheck(pParse, i, zName, pTab->zName, zDb) ){
-      goto exit_create_index;
-    }
-  }
-#endif
-
-  /* If pList==0, it means this routine was called to make a primary
-  ** key out of the last column added to the table under construction.
-  ** So create a fake list to simulate this.
-  */
-  if( pList==0 ){
-    Token prevCol;
-    Column *pCol = &pTab->aCol[pTab->nCol-1];
-    pCol->colFlags |= COLFLAG_UNIQUE;
-    tdsqlite3TokenInit(&prevCol, pCol->zName);
-    pList = tdsqlite3ExprListAppend(pParse, 0,
-              tdsqlite3ExprAlloc(db, TK_ID, &prevCol, 0));
-    if( pList==0 ) goto exit_create_index;
-    assert( pList->nExpr==1 );
-    tdsqlite3ExprListSetSortOrder(pList, sortOrder, SQLITE_SO_UNDEFINED);
-  }else{
-    tdsqlite3ExprListCheckLength(pParse, pList, "index");
-    if( pParse->nErr ) goto exit_create_index;
-  }
-
-  /* Figure out how many bytes of space are required to store explicitly
-  ** specified collation sequence names.
-  */
-  for(i=0; i<pList->nExpr; i++){
-    Expr *pExpr = pList->a[i].pExpr;
-    assert( pExpr!=0 );
-    if( pExpr->op==TK_COLLATE ){
-      nExtra += (1 + tdsqlite3Strlen30(pExpr->u.zToken));
-    }
-  }
-
-  /* 
-  ** Allocate the index structure. 
-  */
-  nName = tdsqlite3Strlen30(zName);
-  nExtraCol = pPk ? pPk->nKeyCol : 1;
-  assert( pList->nExpr + nExtraCol <= 32767 /* Fits in i16 */ );
-  pIndex = tdsqlite3AllocateIndexObject(db, pList->nExpr + nExtraCol,
-                                      nName + nExtra + 1, &zExtra);
-  if( db->mallocFailed ){
-    goto exit_create_index;
-  }
-  assert( EIGHT_BYTE_ALIGNMENT(pIndex->aiRowLogEst) );
-  assert( EIGHT_BYTE_ALIGNMENT(pIndex->azColl) );
-  pIndex->zName = zExtra;
-  zExtra += nName + 1;
-  memcpy(pIndex->zName, zName, nName+1);
-  pIndex->pTable = pTab;
-  pIndex->onError = (u8)onError;
-  pIndex->uniqNotNull = onError!=OE_None;
-  pIndex->idxType = idxType;
-  pIndex->pSchema = db->aDb[iDb].pSchema;
-  pIndex->nKeyCol = pList->nExpr;
-  if( pPIWhere ){
-    tdsqlite3ResolveSelfReference(pParse, pTab, NC_PartIdx, pPIWhere, 0);
-    pIndex->pPartIdxWhere = pPIWhere;
-    pPIWhere = 0;
-  }
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-
-  /* Check to see if we should honor DESC requests on index columns
-  */
-  if( pDb->pSchema->file_format>=4 ){
-    sortOrderMask = -1;   /* Honor DESC */
-  }else{
-    sortOrderMask = 0;    /* Ignore DESC */
-  }
-
-  /* Analyze the list of expressions that form the terms of the index and
-  ** report any errors.  In the common case where the expression is exactly
-  ** a table column, store that column in aiColumn[].  For general expressions,
-  ** populate pIndex->aColExpr and store XN_EXPR (-2) in aiColumn[].
-  **
-  ** TODO: Issue a warning if two or more columns of the index are identical.
-  ** TODO: Issue a warning if the table primary key is used as part of the
-  ** index key.
-  */
-  pListItem = pList->a;
-  if( IN_RENAME_OBJECT ){
-    pIndex->aColExpr = pList;
-    pList = 0;
-  }
-  for(i=0; i<pIndex->nKeyCol; i++, pListItem++){
-    Expr *pCExpr;                  /* The i-th index expression */
-    int requestedSortOrder;        /* ASC or DESC on the i-th expression */
-    const char *zColl;             /* Collation sequence name */
-
-    tdsqlite3StringToId(pListItem->pExpr);
-    tdsqlite3ResolveSelfReference(pParse, pTab, NC_IdxExpr, pListItem->pExpr, 0);
-    if( pParse->nErr ) goto exit_create_index;
-    pCExpr = tdsqlite3ExprSkipCollate(pListItem->pExpr);
-    if( pCExpr->op!=TK_COLUMN ){
-      if( pTab==pParse->pNewTable ){
-        tdsqlite3ErrorMsg(pParse, "expressions prohibited in PRIMARY KEY and "
-                                "UNIQUE constraints");
-        goto exit_create_index;
-      }
-      if( pIndex->aColExpr==0 ){
-        pIndex->aColExpr = pList;
-        pList = 0;
-      }
-      j = XN_EXPR;
-      pIndex->aiColumn[i] = XN_EXPR;
-      pIndex->uniqNotNull = 0;
-    }else{
-      j = pCExpr->iColumn;
-      assert( j<=0x7fff );
-      if( j<0 ){
-        j = pTab->iPKey;
-      }else{
-        if( pTab->aCol[j].notNull==0 ){
-          pIndex->uniqNotNull = 0;
-        }
-        if( pTab->aCol[j].colFlags & COLFLAG_VIRTUAL ){
-          pIndex->bHasVCol = 1;
-        }
-      }
-      pIndex->aiColumn[i] = (i16)j;
-    }
-    zColl = 0;
-    if( pListItem->pExpr->op==TK_COLLATE ){
-      int nColl;
-      zColl = pListItem->pExpr->u.zToken;
-      nColl = tdsqlite3Strlen30(zColl) + 1;
-      assert( nExtra>=nColl );
-      memcpy(zExtra, zColl, nColl);
-      zColl = zExtra;
-      zExtra += nColl;
-      nExtra -= nColl;
-    }else if( j>=0 ){
-      zColl = pTab->aCol[j].zColl;
-    }
-    if( !zColl ) zColl = tdsqlite3StrBINARY;
-    if( !db->init.busy && !tdsqlite3LocateCollSeq(pParse, zColl) ){
-      goto exit_create_index;
-    }
-    pIndex->azColl[i] = zColl;
-    requestedSortOrder = pListItem->sortFlags & sortOrderMask;
-    pIndex->aSortOrder[i] = (u8)requestedSortOrder;
-  }
-
-  /* Append the table key to the end of the index.  For WITHOUT ROWID
-  ** tables (when pPk!=0) this will be the declared PRIMARY KEY.  For
-  ** normal tables (when pPk==0) this will be the rowid.
-  */
-  if( pPk ){
-    for(j=0; j<pPk->nKeyCol; j++){
-      int x = pPk->aiColumn[j];
-      assert( x>=0 );
-      if( isDupColumn(pIndex, pIndex->nKeyCol, pPk, j) ){
-        pIndex->nColumn--; 
-      }else{
-        testcase( hasColumn(pIndex->aiColumn,pIndex->nKeyCol,x) );
-        pIndex->aiColumn[i] = x;
-        pIndex->azColl[i] = pPk->azColl[j];
-        pIndex->aSortOrder[i] = pPk->aSortOrder[j];
-        i++;
-      }
-    }
-    assert( i==pIndex->nColumn );
-  }else{
-    pIndex->aiColumn[i] = XN_ROWID;
-    pIndex->azColl[i] = tdsqlite3StrBINARY;
-  }
-  tdsqlite3DefaultRowEst(pIndex);
-  if( pParse->pNewTable==0 ) estimateIndexWidth(pIndex);
-
-  /* If this index contains every column of its table, then mark
-  ** it as a covering index */
-  assert( HasRowid(pTab) 
-      || pTab->iPKey<0 || tdsqlite3TableColumnToIndex(pIndex, pTab->iPKey)>=0 );
-  recomputeColumnsNotIndexed(pIndex);
-  if( pTblName!=0 && pIndex->nColumn>=pTab->nCol ){
-    pIndex->isCovering = 1;
-    for(j=0; j<pTab->nCol; j++){
-      if( j==pTab->iPKey ) continue;
-      if( tdsqlite3TableColumnToIndex(pIndex,j)>=0 ) continue;
-      pIndex->isCovering = 0;
-      break;
-    }
-  }
-
-  if( pTab==pParse->pNewTable ){
-    /* This routine has been called to create an automatic index as a
-    ** result of a PRIMARY KEY or UNIQUE clause on a column definition, or
-    ** a PRIMARY KEY or UNIQUE clause following the column definitions.
-    ** i.e. one of:
-    **
-    ** CREATE TABLE t(x PRIMARY KEY, y);
-    ** CREATE TABLE t(x, y, UNIQUE(x, y));
-    **
-    ** Either way, check to see if the table already has such an index. If
-    ** so, don't bother creating this one. This only applies to
-    ** automatically created indices. Users can do as they wish with
-    ** explicit indices.
-    **
-    ** Two UNIQUE or PRIMARY KEY constraints are considered equivalent
-    ** (and thus suppressing the second one) even if they have different
-    ** sort orders.
-    **
-    ** If there are different collating sequences or if the columns of
-    ** the constraint occur in different orders, then the constraints are
-    ** considered distinct and both result in separate indices.
-    */
-    Index *pIdx;
-    for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-      int k;
-      assert( IsUniqueIndex(pIdx) );
-      assert( pIdx->idxType!=SQLITE_IDXTYPE_APPDEF );
-      assert( IsUniqueIndex(pIndex) );
-
-      if( pIdx->nKeyCol!=pIndex->nKeyCol ) continue;
-      for(k=0; k<pIdx->nKeyCol; k++){
-        const char *z1;
-        const char *z2;
-        assert( pIdx->aiColumn[k]>=0 );
-        if( pIdx->aiColumn[k]!=pIndex->aiColumn[k] ) break;
-        z1 = pIdx->azColl[k];
-        z2 = pIndex->azColl[k];
-        if( tdsqlite3StrICmp(z1, z2) ) break;
-      }
-      if( k==pIdx->nKeyCol ){
-        if( pIdx->onError!=pIndex->onError ){
-          /* This constraint creates the same index as a previous
-          ** constraint specified somewhere in the CREATE TABLE statement.
-          ** However the ON CONFLICT clauses are different. If both this 
-          ** constraint and the previous equivalent constraint have explicit
-          ** ON CONFLICT clauses this is an error. Otherwise, use the
-          ** explicitly specified behavior for the index.
-          */
-          if( !(pIdx->onError==OE_Default || pIndex->onError==OE_Default) ){
-            tdsqlite3ErrorMsg(pParse, 
-                "conflicting ON CONFLICT clauses specified", 0);
-          }
-          if( pIdx->onError==OE_Default ){
-            pIdx->onError = pIndex->onError;
-          }
-        }
-        if( idxType==SQLITE_IDXTYPE_PRIMARYKEY ) pIdx->idxType = idxType;
-        if( IN_RENAME_OBJECT ){
-          pIndex->pNext = pParse->pNewIndex;
-          pParse->pNewIndex = pIndex;
-          pIndex = 0;
-        }
-        goto exit_create_index;
-      }
-    }
-  }
-
-  if( !IN_RENAME_OBJECT ){
-
-    /* Link the new Index structure to its table and to the other
-    ** in-memory database structures. 
-    */
-    assert( pParse->nErr==0 );
-    if( db->init.busy ){
-      Index *p;
-      assert( !IN_SPECIAL_PARSE );
-      assert( tdsqlite3SchemaMutexHeld(db, 0, pIndex->pSchema) );
-      if( pTblName!=0 ){
-        pIndex->tnum = db->init.newTnum;
-        if( tdsqlite3IndexHasDuplicateRootPage(pIndex) ){
-          tdsqlite3ErrorMsg(pParse, "invalid rootpage");
-          pParse->rc = SQLITE_CORRUPT_BKPT;
-          goto exit_create_index;
-        }
-      }
-      p = tdsqlite3HashInsert(&pIndex->pSchema->idxHash, 
-          pIndex->zName, pIndex);
-      if( p ){
-        assert( p==pIndex );  /* Malloc must have failed */
-        tdsqlite3OomFault(db);
-        goto exit_create_index;
-      }
-      db->mDbFlags |= DBFLAG_SchemaChange;
-    }
-
-    /* If this is the initial CREATE INDEX statement (or CREATE TABLE if the
-    ** index is an implied index for a UNIQUE or PRIMARY KEY constraint) then
-    ** emit code to allocate the index rootpage on disk and make an entry for
-    ** the index in the sqlite_master table and populate the index with
-    ** content.  But, do not do this if we are simply reading the sqlite_master
-    ** table to parse the schema, or if this index is the PRIMARY KEY index
-    ** of a WITHOUT ROWID table.
-    **
-    ** If pTblName==0 it means this index is generated as an implied PRIMARY KEY
-    ** or UNIQUE index in a CREATE TABLE statement.  Since the table
-    ** has just been created, it contains no data and the index initialization
-    ** step can be skipped.
-    */
-    else if( HasRowid(pTab) || pTblName!=0 ){
-      Vdbe *v;
-      char *zStmt;
-      int iMem = ++pParse->nMem;
-
-      v = tdsqlite3GetVdbe(pParse);
-      if( v==0 ) goto exit_create_index;
-
-      tdsqlite3BeginWriteOperation(pParse, 1, iDb);
-
-      /* Create the rootpage for the index using CreateIndex. But before
-      ** doing so, code a Noop instruction and store its address in 
-      ** Index.tnum. This is required in case this index is actually a 
-      ** PRIMARY KEY and the table is actually a WITHOUT ROWID table. In 
-      ** that case the convertToWithoutRowidTable() routine will replace
-      ** the Noop with a Goto to jump over the VDBE code generated below. */
-      pIndex->tnum = tdsqlite3VdbeAddOp0(v, OP_Noop);
-      tdsqlite3VdbeAddOp3(v, OP_CreateBtree, iDb, iMem, BTREE_BLOBKEY);
-
-      /* Gather the complete text of the CREATE INDEX statement into
-      ** the zStmt variable
-      */
-      assert( pName!=0 || pStart==0 );
-      if( pStart ){
-        int n = (int)(pParse->sLastToken.z - pName->z) + pParse->sLastToken.n;
-        if( pName->z[n-1]==';' ) n--;
-        /* A named index with an explicit CREATE INDEX statement */
-        zStmt = tdsqlite3MPrintf(db, "CREATE%s INDEX %.*s",
-            onError==OE_None ? "" : " UNIQUE", n, pName->z);
-      }else{
-        /* An automatic index created by a PRIMARY KEY or UNIQUE constraint */
-        /* zStmt = tdsqlite3MPrintf(""); */
-        zStmt = 0;
-      }
-
-      /* Add an entry in sqlite_master for this index
-      */
-      tdsqlite3NestedParse(pParse, 
-          "INSERT INTO %Q.%s VALUES('index',%Q,%Q,#%d,%Q);",
-          db->aDb[iDb].zDbSName, MASTER_NAME,
-          pIndex->zName,
-          pTab->zName,
-          iMem,
-          zStmt
-          );
-      tdsqlite3DbFree(db, zStmt);
-
-      /* Fill the index with data and reparse the schema. Code an OP_Expire
-      ** to invalidate all pre-compiled statements.
-      */
-      if( pTblName ){
-        tdsqlite3RefillIndex(pParse, pIndex, iMem);
-        tdsqlite3ChangeCookie(pParse, iDb);
-        tdsqlite3VdbeAddParseSchemaOp(v, iDb,
-            tdsqlite3MPrintf(db, "name='%q' AND type='index'", pIndex->zName));
-        tdsqlite3VdbeAddOp2(v, OP_Expire, 0, 1);
-      }
-
-      tdsqlite3VdbeJumpHere(v, pIndex->tnum);
-    }
-  }
-  if( db->init.busy || pTblName==0 ){
-    pIndex->pNext = pTab->pIndex;
-    pTab->pIndex = pIndex;
-    pIndex = 0;
-  }
-  else if( IN_RENAME_OBJECT ){
-    assert( pParse->pNewIndex==0 );
-    pParse->pNewIndex = pIndex;
-    pIndex = 0;
-  }
-
-  /* Clean up before exiting */
-exit_create_index:
-  if( pIndex ) tdsqlite3FreeIndex(db, pIndex);
-  if( pTab ){  /* Ensure all REPLACE indexes are at the end of the list */
-    Index **ppFrom = &pTab->pIndex;
-    Index *pThis;
-    for(ppFrom=&pTab->pIndex; (pThis = *ppFrom)!=0; ppFrom=&pThis->pNext){
-      Index *pNext;
-      if( pThis->onError!=OE_Replace ) continue;
-      while( (pNext = pThis->pNext)!=0 && pNext->onError!=OE_Replace ){
-        *ppFrom = pNext;
-        pThis->pNext = pNext->pNext;
-        pNext->pNext = pThis;
-        ppFrom = &pNext->pNext;
-      }
-      break;
-    }
-  }
-  tdsqlite3ExprDelete(db, pPIWhere);
-  tdsqlite3ExprListDelete(db, pList);
-  tdsqlite3SrcListDelete(db, pTblName);
-  tdsqlite3DbFree(db, zName);
-}
-
-/*
-** Fill the Index.aiRowEst[] array with default information - information
-** to be used when we have not run the ANALYZE command.
-**
-** aiRowEst[0] is supposed to contain the number of elements in the index.
-** Since we do not know, guess 1 million.  aiRowEst[1] is an estimate of the
-** number of rows in the table that match any particular value of the
-** first column of the index.  aiRowEst[2] is an estimate of the number
-** of rows that match any particular combination of the first 2 columns
-** of the index.  And so forth.  It must always be the case that
-*
-**           aiRowEst[N]<=aiRowEst[N-1]
-**           aiRowEst[N]>=1
-**
-** Apart from that, we have little to go on besides intuition as to
-** how aiRowEst[] should be initialized.  The numbers generated here
-** are based on typical values found in actual indices.
-*/
-SQLITE_PRIVATE void tdsqlite3DefaultRowEst(Index *pIdx){
-  /*                10,  9,  8,  7,  6 */
-  LogEst aVal[] = { 33, 32, 30, 28, 26 };
-  LogEst *a = pIdx->aiRowLogEst;
-  int nCopy = MIN(ArraySize(aVal), pIdx->nKeyCol);
-  int i;
-
-  /* Indexes with default row estimates should not have stat1 data */
-  assert( !pIdx->hasStat1 );
-
-  /* Set the first entry (number of rows in the index) to the estimated 
-  ** number of rows in the table, or half the number of rows in the table
-  ** for a partial index.   But do not let the estimate drop below 10. */
-  a[0] = pIdx->pTable->nRowLogEst;
-  if( pIdx->pPartIdxWhere!=0 ) a[0] -= 10;  assert( 10==tdsqlite3LogEst(2) );
-  if( a[0]<33 ) a[0] = 33;                  assert( 33==tdsqlite3LogEst(10) );
-
-  /* Estimate that a[1] is 10, a[2] is 9, a[3] is 8, a[4] is 7, a[5] is
-  ** 6 and each subsequent value (if any) is 5.  */
-  memcpy(&a[1], aVal, nCopy*sizeof(LogEst));
-  for(i=nCopy+1; i<=pIdx->nKeyCol; i++){
-    a[i] = 23;                    assert( 23==tdsqlite3LogEst(5) );
-  }
-
-  assert( 0==tdsqlite3LogEst(1) );
-  if( IsUniqueIndex(pIdx) ) a[pIdx->nKeyCol] = 0;
-}
-
-/*
-** This routine will drop an existing named index.  This routine
-** implements the DROP INDEX statement.
-*/
-SQLITE_PRIVATE void tdsqlite3DropIndex(Parse *pParse, SrcList *pName, int ifExists){
-  Index *pIndex;
-  Vdbe *v;
-  tdsqlite3 *db = pParse->db;
-  int iDb;
-
-  assert( pParse->nErr==0 );   /* Never called with prior errors */
-  if( db->mallocFailed ){
-    goto exit_drop_index;
-  }
-  assert( pName->nSrc==1 );
-  if( SQLITE_OK!=tdsqlite3ReadSchema(pParse) ){
-    goto exit_drop_index;
-  }
-  pIndex = tdsqlite3FindIndex(db, pName->a[0].zName, pName->a[0].zDatabase);
-  if( pIndex==0 ){
-    if( !ifExists ){
-      tdsqlite3ErrorMsg(pParse, "no such index: %S", pName, 0);
-    }else{
-      tdsqlite3CodeVerifyNamedSchema(pParse, pName->a[0].zDatabase);
-    }
-    pParse->checkSchema = 1;
-    goto exit_drop_index;
-  }
-  if( pIndex->idxType!=SQLITE_IDXTYPE_APPDEF ){
-    tdsqlite3ErrorMsg(pParse, "index associated with UNIQUE "
-      "or PRIMARY KEY constraint cannot be dropped", 0);
-    goto exit_drop_index;
-  }
-  iDb = tdsqlite3SchemaToIndex(db, pIndex->pSchema);
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  {
-    int code = SQLITE_DROP_INDEX;
-    Table *pTab = pIndex->pTable;
-    const char *zDb = db->aDb[iDb].zDbSName;
-    const char *zTab = SCHEMA_TABLE(iDb);
-    if( tdsqlite3AuthCheck(pParse, SQLITE_DELETE, zTab, 0, zDb) ){
-      goto exit_drop_index;
-    }
-    if( !OMIT_TEMPDB && iDb ) code = SQLITE_DROP_TEMP_INDEX;
-    if( tdsqlite3AuthCheck(pParse, code, pIndex->zName, pTab->zName, zDb) ){
-      goto exit_drop_index;
-    }
-  }
-#endif
-
-  /* Generate code to remove the index and from the master table */
-  v = tdsqlite3GetVdbe(pParse);
-  if( v ){
-    tdsqlite3BeginWriteOperation(pParse, 1, iDb);
-    tdsqlite3NestedParse(pParse,
-       "DELETE FROM %Q.%s WHERE name=%Q AND type='index'",
-       db->aDb[iDb].zDbSName, MASTER_NAME, pIndex->zName
-    );
-    tdsqlite3ClearStatTables(pParse, iDb, "idx", pIndex->zName);
-    tdsqlite3ChangeCookie(pParse, iDb);
-    destroyRootPage(pParse, pIndex->tnum, iDb);
-    tdsqlite3VdbeAddOp4(v, OP_DropIndex, iDb, 0, 0, pIndex->zName, 0);
-  }
-
-exit_drop_index:
-  tdsqlite3SrcListDelete(db, pName);
-}
-
-/*
-** pArray is a pointer to an array of objects. Each object in the
-** array is szEntry bytes in size. This routine uses tdsqlite3DbRealloc()
-** to extend the array so that there is space for a new object at the end.
-**
-** When this function is called, *pnEntry contains the current size of
-** the array (in entries - so the allocation is ((*pnEntry) * szEntry) bytes
-** in total).
-**
-** If the realloc() is successful (i.e. if no OOM condition occurs), the
-** space allocated for the new object is zeroed, *pnEntry updated to
-** reflect the new size of the array and a pointer to the new allocation
-** returned. *pIdx is set to the index of the new array entry in this case.
-**
-** Otherwise, if the realloc() fails, *pIdx is set to -1, *pnEntry remains
-** unchanged and a copy of pArray returned.
-*/
-SQLITE_PRIVATE void *tdsqlite3ArrayAllocate(
-  tdsqlite3 *db,      /* Connection to notify of malloc failures */
-  void *pArray,     /* Array of objects.  Might be reallocated */
-  int szEntry,      /* Size of each object in the array */
-  int *pnEntry,     /* Number of objects currently in use */
-  int *pIdx         /* Write the index of a new slot here */
-){
-  char *z;
-  tdsqlite3_int64 n = *pIdx = *pnEntry;
-  if( (n & (n-1))==0 ){
-    tdsqlite3_int64 sz = (n==0) ? 1 : 2*n;
-    void *pNew = tdsqlite3DbRealloc(db, pArray, sz*szEntry);
-    if( pNew==0 ){
-      *pIdx = -1;
-      return pArray;
-    }
-    pArray = pNew;
-  }
-  z = (char*)pArray;
-  memset(&z[n * szEntry], 0, szEntry);
-  ++*pnEntry;
-  return pArray;
-}
-
-/*
-** Append a new element to the given IdList.  Create a new IdList if
-** need be.
-**
-** A new IdList is returned, or NULL if malloc() fails.
-*/
-SQLITE_PRIVATE IdList *tdsqlite3IdListAppend(Parse *pParse, IdList *pList, Token *pToken){
-  tdsqlite3 *db = pParse->db;
-  int i;
-  if( pList==0 ){
-    pList = tdsqlite3DbMallocZero(db, sizeof(IdList) );
-    if( pList==0 ) return 0;
-  }
-  pList->a = tdsqlite3ArrayAllocate(
-      db,
-      pList->a,
-      sizeof(pList->a[0]),
-      &pList->nId,
-      &i
-  );
-  if( i<0 ){
-    tdsqlite3IdListDelete(db, pList);
-    return 0;
-  }
-  pList->a[i].zName = tdsqlite3NameFromToken(db, pToken);
-  if( IN_RENAME_OBJECT && pList->a[i].zName ){
-    tdsqlite3RenameTokenMap(pParse, (void*)pList->a[i].zName, pToken);
-  }
-  return pList;
-}
-
-/*
-** Delete an IdList.
-*/
-SQLITE_PRIVATE void tdsqlite3IdListDelete(tdsqlite3 *db, IdList *pList){
-  int i;
-  if( pList==0 ) return;
-  for(i=0; i<pList->nId; i++){
-    tdsqlite3DbFree(db, pList->a[i].zName);
-  }
-  tdsqlite3DbFree(db, pList->a);
-  tdsqlite3DbFreeNN(db, pList);
-}
-
-/*
-** Return the index in pList of the identifier named zId.  Return -1
-** if not found.
-*/
-SQLITE_PRIVATE int tdsqlite3IdListIndex(IdList *pList, const char *zName){
-  int i;
-  if( pList==0 ) return -1;
-  for(i=0; i<pList->nId; i++){
-    if( tdsqlite3StrICmp(pList->a[i].zName, zName)==0 ) return i;
-  }
-  return -1;
-}
-
-/*
-** Maximum size of a SrcList object.
-** The SrcList object is used to represent the FROM clause of a
-** SELECT statement, and the query planner cannot deal with more
-** than 64 tables in a join.  So any value larger than 64 here
-** is sufficient for most uses.  Smaller values, like say 10, are
-** appropriate for small and memory-limited applications.
-*/
-#ifndef SQLITE_MAX_SRCLIST
-# define SQLITE_MAX_SRCLIST 200
-#endif
-
-/*
-** Expand the space allocated for the given SrcList object by
-** creating nExtra new slots beginning at iStart.  iStart is zero based.
-** New slots are zeroed.
-**
-** For example, suppose a SrcList initially contains two entries: A,B.
-** To append 3 new entries onto the end, do this:
-**
-**    tdsqlite3SrcListEnlarge(db, pSrclist, 3, 2);
-**
-** After the call above it would contain:  A, B, nil, nil, nil.
-** If the iStart argument had been 1 instead of 2, then the result
-** would have been:  A, nil, nil, nil, B.  To prepend the new slots,
-** the iStart value would be 0.  The result then would
-** be: nil, nil, nil, A, B.
-**
-** If a memory allocation fails or the SrcList becomes too large, leave
-** the original SrcList unchanged, return NULL, and leave an error message
-** in pParse.
-*/
-SQLITE_PRIVATE SrcList *tdsqlite3SrcListEnlarge(
-  Parse *pParse,     /* Parsing context into which errors are reported */
-  SrcList *pSrc,     /* The SrcList to be enlarged */
-  int nExtra,        /* Number of new slots to add to pSrc->a[] */
-  int iStart         /* Index in pSrc->a[] of first new slot */
-){
-  int i;
-
-  /* Sanity checking on calling parameters */
-  assert( iStart>=0 );
-  assert( nExtra>=1 );
-  assert( pSrc!=0 );
-  assert( iStart<=pSrc->nSrc );
-
-  /* Allocate additional space if needed */
-  if( (u32)pSrc->nSrc+nExtra>pSrc->nAlloc ){
-    SrcList *pNew;
-    tdsqlite3_int64 nAlloc = 2*(tdsqlite3_int64)pSrc->nSrc+nExtra;
-    tdsqlite3 *db = pParse->db;
-
-    if( pSrc->nSrc+nExtra>=SQLITE_MAX_SRCLIST ){
-      tdsqlite3ErrorMsg(pParse, "too many FROM clause terms, max: %d",
-                      SQLITE_MAX_SRCLIST);
-      return 0;
-    }
-    if( nAlloc>SQLITE_MAX_SRCLIST ) nAlloc = SQLITE_MAX_SRCLIST;
-    pNew = tdsqlite3DbRealloc(db, pSrc,
-               sizeof(*pSrc) + (nAlloc-1)*sizeof(pSrc->a[0]) );
-    if( pNew==0 ){
-      assert( db->mallocFailed );
-      return 0;
-    }
-    pSrc = pNew;
-    pSrc->nAlloc = nAlloc;
-  }
-
-  /* Move existing slots that come after the newly inserted slots
-  ** out of the way */
-  for(i=pSrc->nSrc-1; i>=iStart; i--){
-    pSrc->a[i+nExtra] = pSrc->a[i];
-  }
-  pSrc->nSrc += nExtra;
-
-  /* Zero the newly allocated slots */
-  memset(&pSrc->a[iStart], 0, sizeof(pSrc->a[0])*nExtra);
-  for(i=iStart; i<iStart+nExtra; i++){
-    pSrc->a[i].iCursor = -1;
-  }
-
-  /* Return a pointer to the enlarged SrcList */
-  return pSrc;
-}
-
-
-/*
-** Append a new table name to the given SrcList.  Create a new SrcList if
-** need be.  A new entry is created in the SrcList even if pTable is NULL.
-**
-** A SrcList is returned, or NULL if there is an OOM error or if the
-** SrcList grows to large.  The returned
-** SrcList might be the same as the SrcList that was input or it might be
-** a new one.  If an OOM error does occurs, then the prior value of pList
-** that is input to this routine is automatically freed.
-**
-** If pDatabase is not null, it means that the table has an optional
-** database name prefix.  Like this:  "database.table".  The pDatabase
-** points to the table name and the pTable points to the database name.
-** The SrcList.a[].zName field is filled with the table name which might
-** come from pTable (if pDatabase is NULL) or from pDatabase.  
-** SrcList.a[].zDatabase is filled with the database name from pTable,
-** or with NULL if no database is specified.
-**
-** In other words, if call like this:
-**
-**         tdsqlite3SrcListAppend(D,A,B,0);
-**
-** Then B is a table name and the database name is unspecified.  If called
-** like this:
-**
-**         tdsqlite3SrcListAppend(D,A,B,C);
-**
-** Then C is the table name and B is the database name.  If C is defined
-** then so is B.  In other words, we never have a case where:
-**
-**         tdsqlite3SrcListAppend(D,A,0,C);
-**
-** Both pTable and pDatabase are assumed to be quoted.  They are dequoted
-** before being added to the SrcList.
-*/
-SQLITE_PRIVATE SrcList *tdsqlite3SrcListAppend(
-  Parse *pParse,      /* Parsing context, in which errors are reported */
-  SrcList *pList,     /* Append to this SrcList. NULL creates a new SrcList */
-  Token *pTable,      /* Table to append */
-  Token *pDatabase    /* Database of the table */
-){
-  struct SrcList_item *pItem;
-  tdsqlite3 *db;
-  assert( pDatabase==0 || pTable!=0 );  /* Cannot have C without B */
-  assert( pParse!=0 );
-  assert( pParse->db!=0 );
-  db = pParse->db;
-  if( pList==0 ){
-    pList = tdsqlite3DbMallocRawNN(pParse->db, sizeof(SrcList) );
-    if( pList==0 ) return 0;
-    pList->nAlloc = 1;
-    pList->nSrc = 1;
-    memset(&pList->a[0], 0, sizeof(pList->a[0]));
-    pList->a[0].iCursor = -1;
-  }else{
-    SrcList *pNew = tdsqlite3SrcListEnlarge(pParse, pList, 1, pList->nSrc);
-    if( pNew==0 ){
-      tdsqlite3SrcListDelete(db, pList);
-      return 0;
-    }else{
-      pList = pNew;
-    }
-  }
-  pItem = &pList->a[pList->nSrc-1];
-  if( pDatabase && pDatabase->z==0 ){
-    pDatabase = 0;
-  }
-  if( pDatabase ){
-    pItem->zName = tdsqlite3NameFromToken(db, pDatabase);
-    pItem->zDatabase = tdsqlite3NameFromToken(db, pTable);
-  }else{
-    pItem->zName = tdsqlite3NameFromToken(db, pTable);
-    pItem->zDatabase = 0;
-  }
-  return pList;
-}
-
-/*
-** Assign VdbeCursor index numbers to all tables in a SrcList
-*/
-SQLITE_PRIVATE void tdsqlite3SrcListAssignCursors(Parse *pParse, SrcList *pList){
-  int i;
-  struct SrcList_item *pItem;
-  assert(pList || pParse->db->mallocFailed );
-  if( pList ){
-    for(i=0, pItem=pList->a; i<pList->nSrc; i++, pItem++){
-      if( pItem->iCursor>=0 ) break;
-      pItem->iCursor = pParse->nTab++;
-      if( pItem->pSelect ){
-        tdsqlite3SrcListAssignCursors(pParse, pItem->pSelect->pSrc);
-      }
-    }
-  }
-}
-
-/*
-** Delete an entire SrcList including all its substructure.
-*/
-SQLITE_PRIVATE void tdsqlite3SrcListDelete(tdsqlite3 *db, SrcList *pList){
-  int i;
-  struct SrcList_item *pItem;
-  if( pList==0 ) return;
-  for(pItem=pList->a, i=0; i<pList->nSrc; i++, pItem++){
-    tdsqlite3DbFree(db, pItem->zDatabase);
-    tdsqlite3DbFree(db, pItem->zName);
-    tdsqlite3DbFree(db, pItem->zAlias);
-    if( pItem->fg.isIndexedBy ) tdsqlite3DbFree(db, pItem->u1.zIndexedBy);
-    if( pItem->fg.isTabFunc ) tdsqlite3ExprListDelete(db, pItem->u1.pFuncArg);
-    tdsqlite3DeleteTable(db, pItem->pTab);
-    tdsqlite3SelectDelete(db, pItem->pSelect);
-    tdsqlite3ExprDelete(db, pItem->pOn);
-    tdsqlite3IdListDelete(db, pItem->pUsing);
-  }
-  tdsqlite3DbFreeNN(db, pList);
-}
-
-/*
-** This routine is called by the parser to add a new term to the
-** end of a growing FROM clause.  The "p" parameter is the part of
-** the FROM clause that has already been constructed.  "p" is NULL
-** if this is the first term of the FROM clause.  pTable and pDatabase
-** are the name of the table and database named in the FROM clause term.
-** pDatabase is NULL if the database name qualifier is missing - the
-** usual case.  If the term has an alias, then pAlias points to the
-** alias token.  If the term is a subquery, then pSubquery is the
-** SELECT statement that the subquery encodes.  The pTable and
-** pDatabase parameters are NULL for subqueries.  The pOn and pUsing
-** parameters are the content of the ON and USING clauses.
-**
-** Return a new SrcList which encodes is the FROM with the new
-** term added.
-*/
-SQLITE_PRIVATE SrcList *tdsqlite3SrcListAppendFromTerm(
-  Parse *pParse,          /* Parsing context */
-  SrcList *p,             /* The left part of the FROM clause already seen */
-  Token *pTable,          /* Name of the table to add to the FROM clause */
-  Token *pDatabase,       /* Name of the database containing pTable */
-  Token *pAlias,          /* The right-hand side of the AS subexpression */
-  Select *pSubquery,      /* A subquery used in place of a table name */
-  Expr *pOn,              /* The ON clause of a join */
-  IdList *pUsing          /* The USING clause of a join */
-){
-  struct SrcList_item *pItem;
-  tdsqlite3 *db = pParse->db;
-  if( !p && (pOn || pUsing) ){
-    tdsqlite3ErrorMsg(pParse, "a JOIN clause is required before %s", 
-      (pOn ? "ON" : "USING")
-    );
-    goto append_from_error;
-  }
-  p = tdsqlite3SrcListAppend(pParse, p, pTable, pDatabase);
-  if( p==0 ){
-    goto append_from_error;
-  }
-  assert( p->nSrc>0 );
-  pItem = &p->a[p->nSrc-1];
-  assert( (pTable==0)==(pDatabase==0) );
-  assert( pItem->zName==0 || pDatabase!=0 );
-  if( IN_RENAME_OBJECT && pItem->zName ){
-    Token *pToken = (ALWAYS(pDatabase) && pDatabase->z) ? pDatabase : pTable;
-    tdsqlite3RenameTokenMap(pParse, pItem->zName, pToken);
-  }
-  assert( pAlias!=0 );
-  if( pAlias->n ){
-    pItem->zAlias = tdsqlite3NameFromToken(db, pAlias);
-  }
-  pItem->pSelect = pSubquery;
-  pItem->pOn = pOn;
-  pItem->pUsing = pUsing;
-  return p;
-
- append_from_error:
-  assert( p==0 );
-  tdsqlite3ExprDelete(db, pOn);
-  tdsqlite3IdListDelete(db, pUsing);
-  tdsqlite3SelectDelete(db, pSubquery);
-  return 0;
-}
-
-/*
-** Add an INDEXED BY or NOT INDEXED clause to the most recently added 
-** element of the source-list passed as the second argument.
-*/
-SQLITE_PRIVATE void tdsqlite3SrcListIndexedBy(Parse *pParse, SrcList *p, Token *pIndexedBy){
-  assert( pIndexedBy!=0 );
-  if( p && pIndexedBy->n>0 ){
-    struct SrcList_item *pItem;
-    assert( p->nSrc>0 );
-    pItem = &p->a[p->nSrc-1];
-    assert( pItem->fg.notIndexed==0 );
-    assert( pItem->fg.isIndexedBy==0 );
-    assert( pItem->fg.isTabFunc==0 );
-    if( pIndexedBy->n==1 && !pIndexedBy->z ){
-      /* A "NOT INDEXED" clause was supplied. See parse.y 
-      ** construct "indexed_opt" for details. */
-      pItem->fg.notIndexed = 1;
-    }else{
-      pItem->u1.zIndexedBy = tdsqlite3NameFromToken(pParse->db, pIndexedBy);
-      pItem->fg.isIndexedBy = 1;
-    }
-  }
-}
-
-/*
-** Add the list of function arguments to the SrcList entry for a
-** table-valued-function.
-*/
-SQLITE_PRIVATE void tdsqlite3SrcListFuncArgs(Parse *pParse, SrcList *p, ExprList *pList){
-  if( p ){
-    struct SrcList_item *pItem = &p->a[p->nSrc-1];
-    assert( pItem->fg.notIndexed==0 );
-    assert( pItem->fg.isIndexedBy==0 );
-    assert( pItem->fg.isTabFunc==0 );
-    pItem->u1.pFuncArg = pList;
-    pItem->fg.isTabFunc = 1;
-  }else{
-    tdsqlite3ExprListDelete(pParse->db, pList);
-  }
-}
-
-/*
-** When building up a FROM clause in the parser, the join operator
-** is initially attached to the left operand.  But the code generator
-** expects the join operator to be on the right operand.  This routine
-** Shifts all join operators from left to right for an entire FROM
-** clause.
-**
-** Example: Suppose the join is like this:
-**
-**           A natural cross join B
-**
-** The operator is "natural cross join".  The A and B operands are stored
-** in p->a[0] and p->a[1], respectively.  The parser initially stores the
-** operator with A.  This routine shifts that operator over to B.
-*/
-SQLITE_PRIVATE void tdsqlite3SrcListShiftJoinType(SrcList *p){
-  if( p ){
-    int i;
-    for(i=p->nSrc-1; i>0; i--){
-      p->a[i].fg.jointype = p->a[i-1].fg.jointype;
-    }
-    p->a[0].fg.jointype = 0;
-  }
-}
-
-/*
-** Generate VDBE code for a BEGIN statement.
-*/
-SQLITE_PRIVATE void tdsqlite3BeginTransaction(Parse *pParse, int type){
-  tdsqlite3 *db;
-  Vdbe *v;
-  int i;
-
-  assert( pParse!=0 );
-  db = pParse->db;
-  assert( db!=0 );
-  if( tdsqlite3AuthCheck(pParse, SQLITE_TRANSACTION, "BEGIN", 0, 0) ){
-    return;
-  }
-  v = tdsqlite3GetVdbe(pParse);
-  if( !v ) return;
-  if( type!=TK_DEFERRED ){
-    for(i=0; i<db->nDb; i++){
-      tdsqlite3VdbeAddOp2(v, OP_Transaction, i, (type==TK_EXCLUSIVE)+1);
-      tdsqlite3VdbeUsesBtree(v, i);
-    }
-  }
-  tdsqlite3VdbeAddOp0(v, OP_AutoCommit);
-}
-
-/*
-** Generate VDBE code for a COMMIT or ROLLBACK statement.
-** Code for ROLLBACK is generated if eType==TK_ROLLBACK.  Otherwise
-** code is generated for a COMMIT.
-*/
-SQLITE_PRIVATE void tdsqlite3EndTransaction(Parse *pParse, int eType){
-  Vdbe *v;
-  int isRollback;
-
-  assert( pParse!=0 );
-  assert( pParse->db!=0 );
-  assert( eType==TK_COMMIT || eType==TK_END || eType==TK_ROLLBACK );
-  isRollback = eType==TK_ROLLBACK;
-  if( tdsqlite3AuthCheck(pParse, SQLITE_TRANSACTION, 
-       isRollback ? "ROLLBACK" : "COMMIT", 0, 0) ){
-    return;
-  }
-  v = tdsqlite3GetVdbe(pParse);
-  if( v ){
-    tdsqlite3VdbeAddOp2(v, OP_AutoCommit, 1, isRollback);
-  }
-}
-
-/*
-** This function is called by the parser when it parses a command to create,
-** release or rollback an SQL savepoint. 
-*/
-SQLITE_PRIVATE void tdsqlite3Savepoint(Parse *pParse, int op, Token *pName){
-  char *zName = tdsqlite3NameFromToken(pParse->db, pName);
-  if( zName ){
-    Vdbe *v = tdsqlite3GetVdbe(pParse);
-#ifndef SQLITE_OMIT_AUTHORIZATION
-    static const char * const az[] = { "BEGIN", "RELEASE", "ROLLBACK" };
-    assert( !SAVEPOINT_BEGIN && SAVEPOINT_RELEASE==1 && SAVEPOINT_ROLLBACK==2 );
-#endif
-    if( !v || tdsqlite3AuthCheck(pParse, SQLITE_SAVEPOINT, az[op], zName, 0) ){
-      tdsqlite3DbFree(pParse->db, zName);
-      return;
-    }
-    tdsqlite3VdbeAddOp4(v, OP_Savepoint, op, 0, 0, zName, P4_DYNAMIC);
-  }
-}
-
-/*
-** Make sure the TEMP database is open and available for use.  Return
-** the number of errors.  Leave any error messages in the pParse structure.
-*/
-SQLITE_PRIVATE int tdsqlite3OpenTempDatabase(Parse *pParse){
-  tdsqlite3 *db = pParse->db;
-  if( db->aDb[1].pBt==0 && !pParse->explain ){
-    int rc;
-    Btree *pBt;
-    static const int flags = 
-          SQLITE_OPEN_READWRITE |
-          SQLITE_OPEN_CREATE |
-          SQLITE_OPEN_EXCLUSIVE |
-          SQLITE_OPEN_DELETEONCLOSE |
-          SQLITE_OPEN_TEMP_DB;
-
-    rc = tdsqlite3BtreeOpen(db->pVfs, 0, db, &pBt, 0, flags);
-    if( rc!=SQLITE_OK ){
-      tdsqlite3ErrorMsg(pParse, "unable to open a temporary database "
-        "file for storing temporary tables");
-      pParse->rc = rc;
-      return 1;
-    }
-    db->aDb[1].pBt = pBt;
-    assert( db->aDb[1].pSchema );
-    if( SQLITE_NOMEM==tdsqlite3BtreeSetPageSize(pBt, db->nextPagesize, -1, 0) ){
-      tdsqlite3OomFault(db);
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** Record the fact that the schema cookie will need to be verified
-** for database iDb.  The code to actually verify the schema cookie
-** will occur at the end of the top-level VDBE and will be generated
-** later, by tdsqlite3FinishCoding().
-*/
-SQLITE_PRIVATE void tdsqlite3CodeVerifySchema(Parse *pParse, int iDb){
-  Parse *pToplevel = tdsqlite3ParseToplevel(pParse);
-
-  assert( iDb>=0 && iDb<pParse->db->nDb );
-  assert( pParse->db->aDb[iDb].pBt!=0 || iDb==1 );
-  assert( iDb<SQLITE_MAX_ATTACHED+2 );
-  assert( tdsqlite3SchemaMutexHeld(pParse->db, iDb, 0) );
-  if( DbMaskTest(pToplevel->cookieMask, iDb)==0 ){
-    DbMaskSet(pToplevel->cookieMask, iDb);
-    if( !OMIT_TEMPDB && iDb==1 ){
-      tdsqlite3OpenTempDatabase(pToplevel);
-    }
-  }
-}
-
-/*
-** If argument zDb is NULL, then call tdsqlite3CodeVerifySchema() for each 
-** attached database. Otherwise, invoke it for the database named zDb only.
-*/
-SQLITE_PRIVATE void tdsqlite3CodeVerifyNamedSchema(Parse *pParse, const char *zDb){
-  tdsqlite3 *db = pParse->db;
-  int i;
-  for(i=0; i<db->nDb; i++){
-    Db *pDb = &db->aDb[i];
-    if( pDb->pBt && (!zDb || 0==tdsqlite3StrICmp(zDb, pDb->zDbSName)) ){
-      tdsqlite3CodeVerifySchema(pParse, i);
-    }
-  }
-}
-
-/*
-** Generate VDBE code that prepares for doing an operation that
-** might change the database.
-**
-** This routine starts a new transaction if we are not already within
-** a transaction.  If we are already within a transaction, then a checkpoint
-** is set if the setStatement parameter is true.  A checkpoint should
-** be set for operations that might fail (due to a constraint) part of
-** the way through and which will need to undo some writes without having to
-** rollback the whole transaction.  For operations where all constraints
-** can be checked before any changes are made to the database, it is never
-** necessary to undo a write and the checkpoint should not be set.
-*/
-SQLITE_PRIVATE void tdsqlite3BeginWriteOperation(Parse *pParse, int setStatement, int iDb){
-  Parse *pToplevel = tdsqlite3ParseToplevel(pParse);
-  tdsqlite3CodeVerifySchema(pParse, iDb);
-  DbMaskSet(pToplevel->writeMask, iDb);
-  pToplevel->isMultiWrite |= setStatement;
-}
-
-/*
-** Indicate that the statement currently under construction might write
-** more than one entry (example: deleting one row then inserting another,
-** inserting multiple rows in a table, or inserting a row and index entries.)
-** If an abort occurs after some of these writes have completed, then it will
-** be necessary to undo the completed writes.
-*/
-SQLITE_PRIVATE void tdsqlite3MultiWrite(Parse *pParse){
-  Parse *pToplevel = tdsqlite3ParseToplevel(pParse);
-  pToplevel->isMultiWrite = 1;
-}
-
-/* 
-** The code generator calls this routine if is discovers that it is
-** possible to abort a statement prior to completion.  In order to 
-** perform this abort without corrupting the database, we need to make
-** sure that the statement is protected by a statement transaction.
-**
-** Technically, we only need to set the mayAbort flag if the
-** isMultiWrite flag was previously set.  There is a time dependency
-** such that the abort must occur after the multiwrite.  This makes
-** some statements involving the REPLACE conflict resolution algorithm
-** go a little faster.  But taking advantage of this time dependency
-** makes it more difficult to prove that the code is correct (in 
-** particular, it prevents us from writing an effective
-** implementation of tdsqlite3AssertMayAbort()) and so we have chosen
-** to take the safe route and skip the optimization.
-*/
-SQLITE_PRIVATE void tdsqlite3MayAbort(Parse *pParse){
-  Parse *pToplevel = tdsqlite3ParseToplevel(pParse);
-  pToplevel->mayAbort = 1;
-}
-
-/*
-** Code an OP_Halt that causes the vdbe to return an SQLITE_CONSTRAINT
-** error. The onError parameter determines which (if any) of the statement
-** and/or current transaction is rolled back.
-*/
-SQLITE_PRIVATE void tdsqlite3HaltConstraint(
-  Parse *pParse,    /* Parsing context */
-  int errCode,      /* extended error code */
-  int onError,      /* Constraint type */
-  char *p4,         /* Error message */
-  i8 p4type,        /* P4_STATIC or P4_TRANSIENT */
-  u8 p5Errmsg       /* P5_ErrMsg type */
-){
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  assert( (errCode&0xff)==SQLITE_CONSTRAINT );
-  if( onError==OE_Abort ){
-    tdsqlite3MayAbort(pParse);
-  }
-  tdsqlite3VdbeAddOp4(v, OP_Halt, errCode, onError, 0, p4, p4type);
-  tdsqlite3VdbeChangeP5(v, p5Errmsg);
-}
-
-/*
-** Code an OP_Halt due to UNIQUE or PRIMARY KEY constraint violation.
-*/
-SQLITE_PRIVATE void tdsqlite3UniqueConstraint(
-  Parse *pParse,    /* Parsing context */
-  int onError,      /* Constraint type */
-  Index *pIdx       /* The index that triggers the constraint */
-){
-  char *zErr;
-  int j;
-  StrAccum errMsg;
-  Table *pTab = pIdx->pTable;
-
-  tdsqlite3StrAccumInit(&errMsg, pParse->db, 0, 0, 
-                      pParse->db->aLimit[SQLITE_LIMIT_LENGTH]);
-  if( pIdx->aColExpr ){
-    tdsqlite3_str_appendf(&errMsg, "index '%q'", pIdx->zName);
-  }else{
-    for(j=0; j<pIdx->nKeyCol; j++){
-      char *zCol;
-      assert( pIdx->aiColumn[j]>=0 );
-      zCol = pTab->aCol[pIdx->aiColumn[j]].zName;
-      if( j ) tdsqlite3_str_append(&errMsg, ", ", 2);
-      tdsqlite3_str_appendall(&errMsg, pTab->zName);
-      tdsqlite3_str_append(&errMsg, ".", 1);
-      tdsqlite3_str_appendall(&errMsg, zCol);
-    }
-  }
-  zErr = tdsqlite3StrAccumFinish(&errMsg);
-  tdsqlite3HaltConstraint(pParse, 
-    IsPrimaryKeyIndex(pIdx) ? SQLITE_CONSTRAINT_PRIMARYKEY 
-                            : SQLITE_CONSTRAINT_UNIQUE,
-    onError, zErr, P4_DYNAMIC, P5_ConstraintUnique);
-}
-
-
-/*
-** Code an OP_Halt due to non-unique rowid.
-*/
-SQLITE_PRIVATE void tdsqlite3RowidConstraint(
-  Parse *pParse,    /* Parsing context */
-  int onError,      /* Conflict resolution algorithm */
-  Table *pTab       /* The table with the non-unique rowid */ 
-){
-  char *zMsg;
-  int rc;
-  if( pTab->iPKey>=0 ){
-    zMsg = tdsqlite3MPrintf(pParse->db, "%s.%s", pTab->zName,
-                          pTab->aCol[pTab->iPKey].zName);
-    rc = SQLITE_CONSTRAINT_PRIMARYKEY;
-  }else{
-    zMsg = tdsqlite3MPrintf(pParse->db, "%s.rowid", pTab->zName);
-    rc = SQLITE_CONSTRAINT_ROWID;
-  }
-  tdsqlite3HaltConstraint(pParse, rc, onError, zMsg, P4_DYNAMIC,
-                        P5_ConstraintUnique);
-}
-
-/*
-** Check to see if pIndex uses the collating sequence pColl.  Return
-** true if it does and false if it does not.
-*/
-#ifndef SQLITE_OMIT_REINDEX
-static int collationMatch(const char *zColl, Index *pIndex){
-  int i;
-  assert( zColl!=0 );
-  for(i=0; i<pIndex->nColumn; i++){
-    const char *z = pIndex->azColl[i];
-    assert( z!=0 || pIndex->aiColumn[i]<0 );
-    if( pIndex->aiColumn[i]>=0 && 0==tdsqlite3StrICmp(z, zColl) ){
-      return 1;
-    }
-  }
-  return 0;
-}
-#endif
-
-/*
-** Recompute all indices of pTab that use the collating sequence pColl.
-** If pColl==0 then recompute all indices of pTab.
-*/
-#ifndef SQLITE_OMIT_REINDEX
-static void reindexTable(Parse *pParse, Table *pTab, char const *zColl){
-  if( !IsVirtual(pTab) ){
-    Index *pIndex;              /* An index associated with pTab */
-
-    for(pIndex=pTab->pIndex; pIndex; pIndex=pIndex->pNext){
-      if( zColl==0 || collationMatch(zColl, pIndex) ){
-        int iDb = tdsqlite3SchemaToIndex(pParse->db, pTab->pSchema);
-        tdsqlite3BeginWriteOperation(pParse, 0, iDb);
-        tdsqlite3RefillIndex(pParse, pIndex, -1);
-      }
-    }
-  }
-}
-#endif
-
-/*
-** Recompute all indices of all tables in all databases where the
-** indices use the collating sequence pColl.  If pColl==0 then recompute
-** all indices everywhere.
-*/
-#ifndef SQLITE_OMIT_REINDEX
-static void reindexDatabases(Parse *pParse, char const *zColl){
-  Db *pDb;                    /* A single database */
-  int iDb;                    /* The database index number */
-  tdsqlite3 *db = pParse->db;   /* The database connection */
-  HashElem *k;                /* For looping over tables in pDb */
-  Table *pTab;                /* A table in the database */
-
-  assert( tdsqlite3BtreeHoldsAllMutexes(db) );  /* Needed for schema access */
-  for(iDb=0, pDb=db->aDb; iDb<db->nDb; iDb++, pDb++){
-    assert( pDb!=0 );
-    for(k=sqliteHashFirst(&pDb->pSchema->tblHash);  k; k=sqliteHashNext(k)){
-      pTab = (Table*)sqliteHashData(k);
-      reindexTable(pParse, pTab, zColl);
-    }
-  }
-}
-#endif
-
-/*
-** Generate code for the REINDEX command.
-**
-**        REINDEX                            -- 1
-**        REINDEX  <collation>               -- 2
-**        REINDEX  ?<database>.?<tablename>  -- 3
-**        REINDEX  ?<database>.?<indexname>  -- 4
-**
-** Form 1 causes all indices in all attached databases to be rebuilt.
-** Form 2 rebuilds all indices in all databases that use the named
-** collating function.  Forms 3 and 4 rebuild the named index or all
-** indices associated with the named table.
-*/
-#ifndef SQLITE_OMIT_REINDEX
-SQLITE_PRIVATE void tdsqlite3Reindex(Parse *pParse, Token *pName1, Token *pName2){
-  CollSeq *pColl;             /* Collating sequence to be reindexed, or NULL */
-  char *z;                    /* Name of a table or index */
-  const char *zDb;            /* Name of the database */
-  Table *pTab;                /* A table in the database */
-  Index *pIndex;              /* An index associated with pTab */
-  int iDb;                    /* The database index number */
-  tdsqlite3 *db = pParse->db;   /* The database connection */
-  Token *pObjName;            /* Name of the table or index to be reindexed */
-
-  /* Read the database schema. If an error occurs, leave an error message
-  ** and code in pParse and return NULL. */
-  if( SQLITE_OK!=tdsqlite3ReadSchema(pParse) ){
-    return;
-  }
-
-  if( pName1==0 ){
-    reindexDatabases(pParse, 0);
-    return;
-  }else if( NEVER(pName2==0) || pName2->z==0 ){
-    char *zColl;
-    assert( pName1->z );
-    zColl = tdsqlite3NameFromToken(pParse->db, pName1);
-    if( !zColl ) return;
-    pColl = tdsqlite3FindCollSeq(db, ENC(db), zColl, 0);
-    if( pColl ){
-      reindexDatabases(pParse, zColl);
-      tdsqlite3DbFree(db, zColl);
-      return;
-    }
-    tdsqlite3DbFree(db, zColl);
-  }
-  iDb = tdsqlite3TwoPartName(pParse, pName1, pName2, &pObjName);
-  if( iDb<0 ) return;
-  z = tdsqlite3NameFromToken(db, pObjName);
-  if( z==0 ) return;
-  zDb = db->aDb[iDb].zDbSName;
-  pTab = tdsqlite3FindTable(db, z, zDb);
-  if( pTab ){
-    reindexTable(pParse, pTab, 0);
-    tdsqlite3DbFree(db, z);
-    return;
-  }
-  pIndex = tdsqlite3FindIndex(db, z, zDb);
-  tdsqlite3DbFree(db, z);
-  if( pIndex ){
-    tdsqlite3BeginWriteOperation(pParse, 0, iDb);
-    tdsqlite3RefillIndex(pParse, pIndex, -1);
-    return;
-  }
-  tdsqlite3ErrorMsg(pParse, "unable to identify the object to be reindexed");
-}
-#endif
-
-/*
-** Return a KeyInfo structure that is appropriate for the given Index.
-**
-** The caller should invoke tdsqlite3KeyInfoUnref() on the returned object
-** when it has finished using it.
-*/
-SQLITE_PRIVATE KeyInfo *tdsqlite3KeyInfoOfIndex(Parse *pParse, Index *pIdx){
-  int i;
-  int nCol = pIdx->nColumn;
-  int nKey = pIdx->nKeyCol;
-  KeyInfo *pKey;
-  if( pParse->nErr ) return 0;
-  if( pIdx->uniqNotNull ){
-    pKey = tdsqlite3KeyInfoAlloc(pParse->db, nKey, nCol-nKey);
-  }else{
-    pKey = tdsqlite3KeyInfoAlloc(pParse->db, nCol, 0);
-  }
-  if( pKey ){
-    assert( tdsqlite3KeyInfoIsWriteable(pKey) );
-    for(i=0; i<nCol; i++){
-      const char *zColl = pIdx->azColl[i];
-      pKey->aColl[i] = zColl==tdsqlite3StrBINARY ? 0 :
-                        tdsqlite3LocateCollSeq(pParse, zColl);
-      pKey->aSortFlags[i] = pIdx->aSortOrder[i];
-      assert( 0==(pKey->aSortFlags[i] & KEYINFO_ORDER_BIGNULL) );
-    }
-    if( pParse->nErr ){
-      assert( pParse->rc==SQLITE_ERROR_MISSING_COLLSEQ );
-      if( pIdx->bNoQuery==0 ){
-        /* Deactivate the index because it contains an unknown collating
-        ** sequence.  The only way to reactive the index is to reload the
-        ** schema.  Adding the missing collating sequence later does not
-        ** reactive the index.  The application had the chance to register
-        ** the missing index using the collation-needed callback.  For
-        ** simplicity, SQLite will not give the application a second chance.
-        */
-        pIdx->bNoQuery = 1;
-        pParse->rc = SQLITE_ERROR_RETRY;
-      }
-      tdsqlite3KeyInfoUnref(pKey);
-      pKey = 0;
-    }
-  }
-  return pKey;
-}
-
-#ifndef SQLITE_OMIT_CTE
-/* 
-** This routine is invoked once per CTE by the parser while parsing a 
-** WITH clause. 
-*/
-SQLITE_PRIVATE With *tdsqlite3WithAdd(
-  Parse *pParse,          /* Parsing context */
-  With *pWith,            /* Existing WITH clause, or NULL */
-  Token *pName,           /* Name of the common-table */
-  ExprList *pArglist,     /* Optional column name list for the table */
-  Select *pQuery          /* Query used to initialize the table */
-){
-  tdsqlite3 *db = pParse->db;
-  With *pNew;
-  char *zName;
-
-  /* Check that the CTE name is unique within this WITH clause. If
-  ** not, store an error in the Parse structure. */
-  zName = tdsqlite3NameFromToken(pParse->db, pName);
-  if( zName && pWith ){
-    int i;
-    for(i=0; i<pWith->nCte; i++){
-      if( tdsqlite3StrICmp(zName, pWith->a[i].zName)==0 ){
-        tdsqlite3ErrorMsg(pParse, "duplicate WITH table name: %s", zName);
-      }
-    }
-  }
-
-  if( pWith ){
-    tdsqlite3_int64 nByte = sizeof(*pWith) + (sizeof(pWith->a[1]) * pWith->nCte);
-    pNew = tdsqlite3DbRealloc(db, pWith, nByte);
-  }else{
-    pNew = tdsqlite3DbMallocZero(db, sizeof(*pWith));
-  }
-  assert( (pNew!=0 && zName!=0) || db->mallocFailed );
-
-  if( db->mallocFailed ){
-    tdsqlite3ExprListDelete(db, pArglist);
-    tdsqlite3SelectDelete(db, pQuery);
-    tdsqlite3DbFree(db, zName);
-    pNew = pWith;
-  }else{
-    pNew->a[pNew->nCte].pSelect = pQuery;
-    pNew->a[pNew->nCte].pCols = pArglist;
-    pNew->a[pNew->nCte].zName = zName;
-    pNew->a[pNew->nCte].zCteErr = 0;
-    pNew->nCte++;
-  }
-
-  return pNew;
-}
-
-/*
-** Free the contents of the With object passed as the second argument.
-*/
-SQLITE_PRIVATE void tdsqlite3WithDelete(tdsqlite3 *db, With *pWith){
-  if( pWith ){
-    int i;
-    for(i=0; i<pWith->nCte; i++){
-      struct Cte *pCte = &pWith->a[i];
-      tdsqlite3ExprListDelete(db, pCte->pCols);
-      tdsqlite3SelectDelete(db, pCte->pSelect);
-      tdsqlite3DbFree(db, pCte->zName);
-    }
-    tdsqlite3DbFree(db, pWith);
-  }
-}
-#endif /* !defined(SQLITE_OMIT_CTE) */
-
-/************** End of build.c ***********************************************/
-/************** Begin file callback.c ****************************************/
-/*
-** 2005 May 23 
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains functions used to access the internal hash tables
-** of user defined functions and collation sequences.
-*/
-
-/* #include "sqliteInt.h" */
-
-/*
-** Invoke the 'collation needed' callback to request a collation sequence
-** in the encoding enc of name zName, length nName.
-*/
-static void callCollNeeded(tdsqlite3 *db, int enc, const char *zName){
-  assert( !db->xCollNeeded || !db->xCollNeeded16 );
-  if( db->xCollNeeded ){
-    char *zExternal = tdsqlite3DbStrDup(db, zName);
-    if( !zExternal ) return;
-    db->xCollNeeded(db->pCollNeededArg, db, enc, zExternal);
-    tdsqlite3DbFree(db, zExternal);
-  }
-#ifndef SQLITE_OMIT_UTF16
-  if( db->xCollNeeded16 ){
-    char const *zExternal;
-    tdsqlite3_value *pTmp = tdsqlite3ValueNew(db);
-    tdsqlite3ValueSetStr(pTmp, -1, zName, SQLITE_UTF8, SQLITE_STATIC);
-    zExternal = tdsqlite3ValueText(pTmp, SQLITE_UTF16NATIVE);
-    if( zExternal ){
-      db->xCollNeeded16(db->pCollNeededArg, db, (int)ENC(db), zExternal);
-    }
-    tdsqlite3ValueFree(pTmp);
-  }
-#endif
-}
-
-/*
-** This routine is called if the collation factory fails to deliver a
-** collation function in the best encoding but there may be other versions
-** of this collation function (for other text encodings) available. Use one
-** of these instead if they exist. Avoid a UTF-8 <-> UTF-16 conversion if
-** possible.
-*/
-static int synthCollSeq(tdsqlite3 *db, CollSeq *pColl){
-  CollSeq *pColl2;
-  char *z = pColl->zName;
-  int i;
-  static const u8 aEnc[] = { SQLITE_UTF16BE, SQLITE_UTF16LE, SQLITE_UTF8 };
-  for(i=0; i<3; i++){
-    pColl2 = tdsqlite3FindCollSeq(db, aEnc[i], z, 0);
-    if( pColl2->xCmp!=0 ){
-      memcpy(pColl, pColl2, sizeof(CollSeq));
-      pColl->xDel = 0;         /* Do not copy the destructor */
-      return SQLITE_OK;
-    }
-  }
-  return SQLITE_ERROR;
-}
-
-/*
-** This routine is called on a collation sequence before it is used to
-** check that it is defined. An undefined collation sequence exists when
-** a database is loaded that contains references to collation sequences
-** that have not been defined by tdsqlite3_create_collation() etc.
-**
-** If required, this routine calls the 'collation needed' callback to
-** request a definition of the collating sequence. If this doesn't work, 
-** an equivalent collating sequence that uses a text encoding different
-** from the main database is substituted, if one is available.
-*/
-SQLITE_PRIVATE int tdsqlite3CheckCollSeq(Parse *pParse, CollSeq *pColl){
-  if( pColl && pColl->xCmp==0 ){
-    const char *zName = pColl->zName;
-    tdsqlite3 *db = pParse->db;
-    CollSeq *p = tdsqlite3GetCollSeq(pParse, ENC(db), pColl, zName);
-    if( !p ){
-      return SQLITE_ERROR;
-    }
-    assert( p==pColl );
-  }
-  return SQLITE_OK;
-}
-
-
-
-/*
-** Locate and return an entry from the db.aCollSeq hash table. If the entry
-** specified by zName and nName is not found and parameter 'create' is
-** true, then create a new entry. Otherwise return NULL.
-**
-** Each pointer stored in the sqlite3.aCollSeq hash table contains an
-** array of three CollSeq structures. The first is the collation sequence
-** preferred for UTF-8, the second UTF-16le, and the third UTF-16be.
-**
-** Stored immediately after the three collation sequences is a copy of
-** the collation sequence name. A pointer to this string is stored in
-** each collation sequence structure.
-*/
-static CollSeq *findCollSeqEntry(
-  tdsqlite3 *db,          /* Database connection */
-  const char *zName,    /* Name of the collating sequence */
-  int create            /* Create a new entry if true */
-){
-  CollSeq *pColl;
-  pColl = tdsqlite3HashFind(&db->aCollSeq, zName);
-
-  if( 0==pColl && create ){
-    int nName = tdsqlite3Strlen30(zName) + 1;
-    pColl = tdsqlite3DbMallocZero(db, 3*sizeof(*pColl) + nName);
-    if( pColl ){
-      CollSeq *pDel = 0;
-      pColl[0].zName = (char*)&pColl[3];
-      pColl[0].enc = SQLITE_UTF8;
-      pColl[1].zName = (char*)&pColl[3];
-      pColl[1].enc = SQLITE_UTF16LE;
-      pColl[2].zName = (char*)&pColl[3];
-      pColl[2].enc = SQLITE_UTF16BE;
-      memcpy(pColl[0].zName, zName, nName);
-      pDel = tdsqlite3HashInsert(&db->aCollSeq, pColl[0].zName, pColl);
-
-      /* If a malloc() failure occurred in tdsqlite3HashInsert(), it will 
-      ** return the pColl pointer to be deleted (because it wasn't added
-      ** to the hash table).
-      */
-      assert( pDel==0 || pDel==pColl );
-      if( pDel!=0 ){
-        tdsqlite3OomFault(db);
-        tdsqlite3DbFree(db, pDel);
-        pColl = 0;
-      }
-    }
-  }
-  return pColl;
-}
-
-/*
-** Parameter zName points to a UTF-8 encoded string nName bytes long.
-** Return the CollSeq* pointer for the collation sequence named zName
-** for the encoding 'enc' from the database 'db'.
-**
-** If the entry specified is not found and 'create' is true, then create a
-** new entry.  Otherwise return NULL.
-**
-** A separate function tdsqlite3LocateCollSeq() is a wrapper around
-** this routine.  tdsqlite3LocateCollSeq() invokes the collation factory
-** if necessary and generates an error message if the collating sequence
-** cannot be found.
-**
-** See also: tdsqlite3LocateCollSeq(), tdsqlite3GetCollSeq()
-*/
-SQLITE_PRIVATE CollSeq *tdsqlite3FindCollSeq(
-  tdsqlite3 *db,          /* Database connection to search */
-  u8 enc,               /* Desired text encoding */
-  const char *zName,    /* Name of the collating sequence.  Might be NULL */
-  int create            /* True to create CollSeq if doesn't already exist */
-){
-  CollSeq *pColl;
-  if( zName ){
-    pColl = findCollSeqEntry(db, zName, create);
-  }else{
-    pColl = db->pDfltColl;
-  }
-  assert( SQLITE_UTF8==1 && SQLITE_UTF16LE==2 && SQLITE_UTF16BE==3 );
-  assert( enc>=SQLITE_UTF8 && enc<=SQLITE_UTF16BE );
-  if( pColl ) pColl += enc-1;
-  return pColl;
-}
-
-/*
-** This function is responsible for invoking the collation factory callback
-** or substituting a collation sequence of a different encoding when the
-** requested collation sequence is not available in the desired encoding.
-** 
-** If it is not NULL, then pColl must point to the database native encoding 
-** collation sequence with name zName, length nName.
-**
-** The return value is either the collation sequence to be used in database
-** db for collation type name zName, length nName, or NULL, if no collation
-** sequence can be found.  If no collation is found, leave an error message.
-**
-** See also: tdsqlite3LocateCollSeq(), tdsqlite3FindCollSeq()
-*/
-SQLITE_PRIVATE CollSeq *tdsqlite3GetCollSeq(
-  Parse *pParse,        /* Parsing context */
-  u8 enc,               /* The desired encoding for the collating sequence */
-  CollSeq *pColl,       /* Collating sequence with native encoding, or NULL */
-  const char *zName     /* Collating sequence name */
-){
-  CollSeq *p;
-  tdsqlite3 *db = pParse->db;
-
-  p = pColl;
-  if( !p ){
-    p = tdsqlite3FindCollSeq(db, enc, zName, 0);
-  }
-  if( !p || !p->xCmp ){
-    /* No collation sequence of this type for this encoding is registered.
-    ** Call the collation factory to see if it can supply us with one.
-    */
-    callCollNeeded(db, enc, zName);
-    p = tdsqlite3FindCollSeq(db, enc, zName, 0);
-  }
-  if( p && !p->xCmp && synthCollSeq(db, p) ){
-    p = 0;
-  }
-  assert( !p || p->xCmp );
-  if( p==0 ){
-    tdsqlite3ErrorMsg(pParse, "no such collation sequence: %s", zName);
-    pParse->rc = SQLITE_ERROR_MISSING_COLLSEQ;
-  }
-  return p;
-}
-
-/*
-** This function returns the collation sequence for database native text
-** encoding identified by the string zName.
-**
-** If the requested collation sequence is not available, or not available
-** in the database native encoding, the collation factory is invoked to
-** request it. If the collation factory does not supply such a sequence,
-** and the sequence is available in another text encoding, then that is
-** returned instead.
-**
-** If no versions of the requested collations sequence are available, or
-** another error occurs, NULL is returned and an error message written into
-** pParse.
-**
-** This routine is a wrapper around tdsqlite3FindCollSeq().  This routine
-** invokes the collation factory if the named collation cannot be found
-** and generates an error message.
-**
-** See also: tdsqlite3FindCollSeq(), tdsqlite3GetCollSeq()
-*/
-SQLITE_PRIVATE CollSeq *tdsqlite3LocateCollSeq(Parse *pParse, const char *zName){
-  tdsqlite3 *db = pParse->db;
-  u8 enc = ENC(db);
-  u8 initbusy = db->init.busy;
-  CollSeq *pColl;
-
-  pColl = tdsqlite3FindCollSeq(db, enc, zName, initbusy);
-  if( !initbusy && (!pColl || !pColl->xCmp) ){
-    pColl = tdsqlite3GetCollSeq(pParse, enc, pColl, zName);
-  }
-
-  return pColl;
-}
-
-/* During the search for the best function definition, this procedure
-** is called to test how well the function passed as the first argument
-** matches the request for a function with nArg arguments in a system
-** that uses encoding enc. The value returned indicates how well the
-** request is matched. A higher value indicates a better match.
-**
-** If nArg is -1 that means to only return a match (non-zero) if p->nArg
-** is also -1.  In other words, we are searching for a function that
-** takes a variable number of arguments.
-**
-** If nArg is -2 that means that we are searching for any function 
-** regardless of the number of arguments it uses, so return a positive
-** match score for any
-**
-** The returned value is always between 0 and 6, as follows:
-**
-** 0: Not a match.
-** 1: UTF8/16 conversion required and function takes any number of arguments.
-** 2: UTF16 byte order change required and function takes any number of args.
-** 3: encoding matches and function takes any number of arguments
-** 4: UTF8/16 conversion required - argument count matches exactly
-** 5: UTF16 byte order conversion required - argument count matches exactly
-** 6: Perfect match:  encoding and argument count match exactly.
-**
-** If nArg==(-2) then any function with a non-null xSFunc is
-** a perfect match and any function with xSFunc NULL is
-** a non-match.
-*/
-#define FUNC_PERFECT_MATCH 6  /* The score for a perfect match */
-static int matchQuality(
-  FuncDef *p,     /* The function we are evaluating for match quality */
-  int nArg,       /* Desired number of arguments.  (-1)==any */
-  u8 enc          /* Desired text encoding */
-){
-  int match;
-  assert( p->nArg>=-1 );
-
-  /* Wrong number of arguments means "no match" */
-  if( p->nArg!=nArg ){
-    if( nArg==(-2) ) return (p->xSFunc==0) ? 0 : FUNC_PERFECT_MATCH;
-    if( p->nArg>=0 ) return 0;
-  }
-
-  /* Give a better score to a function with a specific number of arguments
-  ** than to function that accepts any number of arguments. */
-  if( p->nArg==nArg ){
-    match = 4;
-  }else{
-    match = 1;
-  }
-
-  /* Bonus points if the text encoding matches */
-  if( enc==(p->funcFlags & SQLITE_FUNC_ENCMASK) ){
-    match += 2;  /* Exact encoding match */
-  }else if( (enc & p->funcFlags & 2)!=0 ){
-    match += 1;  /* Both are UTF16, but with different byte orders */
-  }
-
-  return match;
-}
-
-/*
-** Search a FuncDefHash for a function with the given name.  Return
-** a pointer to the matching FuncDef if found, or 0 if there is no match.
-*/
-SQLITE_PRIVATE FuncDef *tdsqlite3FunctionSearch(
-  int h,               /* Hash of the name */
-  const char *zFunc    /* Name of function */
-){
-  FuncDef *p;
-  for(p=tdsqlite3BuiltinFunctions.a[h]; p; p=p->u.pHash){
-    if( tdsqlite3StrICmp(p->zName, zFunc)==0 ){
-      return p;
-    }
-  }
-  return 0;
-}
-
-/*
-** Insert a new FuncDef into a FuncDefHash hash table.
-*/
-SQLITE_PRIVATE void tdsqlite3InsertBuiltinFuncs(
-  FuncDef *aDef,      /* List of global functions to be inserted */
-  int nDef            /* Length of the apDef[] list */
-){
-  int i;
-  for(i=0; i<nDef; i++){
-    FuncDef *pOther;
-    const char *zName = aDef[i].zName;
-    int nName = tdsqlite3Strlen30(zName);
-    int h = SQLITE_FUNC_HASH(zName[0], nName);
-    assert( zName[0]>='a' && zName[0]<='z' );
-    pOther = tdsqlite3FunctionSearch(h, zName);
-    if( pOther ){
-      assert( pOther!=&aDef[i] && pOther->pNext!=&aDef[i] );
-      aDef[i].pNext = pOther->pNext;
-      pOther->pNext = &aDef[i];
-    }else{
-      aDef[i].pNext = 0;
-      aDef[i].u.pHash = tdsqlite3BuiltinFunctions.a[h];
-      tdsqlite3BuiltinFunctions.a[h] = &aDef[i];
-    }
-  }
-}
-  
-  
-
-/*
-** Locate a user function given a name, a number of arguments and a flag
-** indicating whether the function prefers UTF-16 over UTF-8.  Return a
-** pointer to the FuncDef structure that defines that function, or return
-** NULL if the function does not exist.
-**
-** If the createFlag argument is true, then a new (blank) FuncDef
-** structure is created and liked into the "db" structure if a
-** no matching function previously existed.
-**
-** If nArg is -2, then the first valid function found is returned.  A
-** function is valid if xSFunc is non-zero.  The nArg==(-2)
-** case is used to see if zName is a valid function name for some number
-** of arguments.  If nArg is -2, then createFlag must be 0.
-**
-** If createFlag is false, then a function with the required name and
-** number of arguments may be returned even if the eTextRep flag does not
-** match that requested.
-*/
-SQLITE_PRIVATE FuncDef *tdsqlite3FindFunction(
-  tdsqlite3 *db,       /* An open database */
-  const char *zName, /* Name of the function.  zero-terminated */
-  int nArg,          /* Number of arguments.  -1 means any number */
-  u8 enc,            /* Preferred text encoding */
-  u8 createFlag      /* Create new entry if true and does not otherwise exist */
-){
-  FuncDef *p;         /* Iterator variable */
-  FuncDef *pBest = 0; /* Best match found so far */
-  int bestScore = 0;  /* Score of best match */
-  int h;              /* Hash value */
-  int nName;          /* Length of the name */
-
-  assert( nArg>=(-2) );
-  assert( nArg>=(-1) || createFlag==0 );
-  nName = tdsqlite3Strlen30(zName);
-
-  /* First search for a match amongst the application-defined functions.
-  */
-  p = (FuncDef*)tdsqlite3HashFind(&db->aFunc, zName);
-  while( p ){
-    int score = matchQuality(p, nArg, enc);
-    if( score>bestScore ){
-      pBest = p;
-      bestScore = score;
-    }
-    p = p->pNext;
-  }
-
-  /* If no match is found, search the built-in functions.
-  **
-  ** If the DBFLAG_PreferBuiltin flag is set, then search the built-in
-  ** functions even if a prior app-defined function was found.  And give
-  ** priority to built-in functions.
-  **
-  ** Except, if createFlag is true, that means that we are trying to
-  ** install a new function.  Whatever FuncDef structure is returned it will
-  ** have fields overwritten with new information appropriate for the
-  ** new function.  But the FuncDefs for built-in functions are read-only.
-  ** So we must not search for built-ins when creating a new function.
-  */ 
-  if( !createFlag && (pBest==0 || (db->mDbFlags & DBFLAG_PreferBuiltin)!=0) ){
-    bestScore = 0;
-    h = SQLITE_FUNC_HASH(tdsqlite3UpperToLower[(u8)zName[0]], nName);
-    p = tdsqlite3FunctionSearch(h, zName);
-    while( p ){
-      int score = matchQuality(p, nArg, enc);
-      if( score>bestScore ){
-        pBest = p;
-        bestScore = score;
-      }
-      p = p->pNext;
-    }
-  }
-
-  /* If the createFlag parameter is true and the search did not reveal an
-  ** exact match for the name, number of arguments and encoding, then add a
-  ** new entry to the hash table and return it.
-  */
-  if( createFlag && bestScore<FUNC_PERFECT_MATCH && 
-      (pBest = tdsqlite3DbMallocZero(db, sizeof(*pBest)+nName+1))!=0 ){
-    FuncDef *pOther;
-    u8 *z;
-    pBest->zName = (const char*)&pBest[1];
-    pBest->nArg = (u16)nArg;
-    pBest->funcFlags = enc;
-    memcpy((char*)&pBest[1], zName, nName+1);
-    for(z=(u8*)pBest->zName; *z; z++) *z = tdsqlite3UpperToLower[*z];
-    pOther = (FuncDef*)tdsqlite3HashInsert(&db->aFunc, pBest->zName, pBest);
-    if( pOther==pBest ){
-      tdsqlite3DbFree(db, pBest);
-      tdsqlite3OomFault(db);
-      return 0;
-    }else{
-      pBest->pNext = pOther;
-    }
-  }
-
-  if( pBest && (pBest->xSFunc || createFlag) ){
-    return pBest;
-  }
-  return 0;
-}
-
-/*
-** Free all resources held by the schema structure. The void* argument points
-** at a Schema struct. This function does not call tdsqlite3DbFree(db, ) on the 
-** pointer itself, it just cleans up subsidiary resources (i.e. the contents
-** of the schema hash tables).
-**
-** The Schema.cache_size variable is not cleared.
-*/
-SQLITE_PRIVATE void tdsqlite3SchemaClear(void *p){
-  Hash temp1;
-  Hash temp2;
-  HashElem *pElem;
-  Schema *pSchema = (Schema *)p;
-
-  temp1 = pSchema->tblHash;
-  temp2 = pSchema->trigHash;
-  tdsqlite3HashInit(&pSchema->trigHash);
-  tdsqlite3HashClear(&pSchema->idxHash);
-  for(pElem=sqliteHashFirst(&temp2); pElem; pElem=sqliteHashNext(pElem)){
-    tdsqlite3DeleteTrigger(0, (Trigger*)sqliteHashData(pElem));
-  }
-  tdsqlite3HashClear(&temp2);
-  tdsqlite3HashInit(&pSchema->tblHash);
-  for(pElem=sqliteHashFirst(&temp1); pElem; pElem=sqliteHashNext(pElem)){
-    Table *pTab = sqliteHashData(pElem);
-    tdsqlite3DeleteTable(0, pTab);
-  }
-  tdsqlite3HashClear(&temp1);
-  tdsqlite3HashClear(&pSchema->fkeyHash);
-  pSchema->pSeqTab = 0;
-  if( pSchema->schemaFlags & DB_SchemaLoaded ){
-    pSchema->iGeneration++;
-  }
-  pSchema->schemaFlags &= ~(DB_SchemaLoaded|DB_ResetWanted);
-}
-
-/*
-** Find and return the schema associated with a BTree.  Create
-** a new one if necessary.
-*/
-SQLITE_PRIVATE Schema *tdsqlite3SchemaGet(tdsqlite3 *db, Btree *pBt){
-  Schema * p;
-  if( pBt ){
-    p = (Schema *)tdsqlite3BtreeSchema(pBt, sizeof(Schema), tdsqlite3SchemaClear);
-  }else{
-    p = (Schema *)tdsqlite3DbMallocZero(0, sizeof(Schema));
-  }
-  if( !p ){
-    tdsqlite3OomFault(db);
-  }else if ( 0==p->file_format ){
-    tdsqlite3HashInit(&p->tblHash);
-    tdsqlite3HashInit(&p->idxHash);
-    tdsqlite3HashInit(&p->trigHash);
-    tdsqlite3HashInit(&p->fkeyHash);
-    p->enc = SQLITE_UTF8;
-  }
-  return p;
-}
-
-/************** End of callback.c ********************************************/
-/************** Begin file delete.c ******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains C code routines that are called by the parser
-** in order to generate code for DELETE FROM statements.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** While a SrcList can in general represent multiple tables and subqueries
-** (as in the FROM clause of a SELECT statement) in this case it contains
-** the name of a single table, as one might find in an INSERT, DELETE,
-** or UPDATE statement.  Look up that table in the symbol table and
-** return a pointer.  Set an error message and return NULL if the table 
-** name is not found or if any other error occurs.
-**
-** The following fields are initialized appropriate in pSrc:
-**
-**    pSrc->a[0].pTab       Pointer to the Table object
-**    pSrc->a[0].pIndex     Pointer to the INDEXED BY index, if there is one
-**
-*/
-SQLITE_PRIVATE Table *tdsqlite3SrcListLookup(Parse *pParse, SrcList *pSrc){
-  struct SrcList_item *pItem = pSrc->a;
-  Table *pTab;
-  assert( pItem && pSrc->nSrc==1 );
-  pTab = tdsqlite3LocateTableItem(pParse, 0, pItem);
-  tdsqlite3DeleteTable(pParse->db, pItem->pTab);
-  pItem->pTab = pTab;
-  if( pTab ){
-    pTab->nTabRef++;
-  }
-  if( tdsqlite3IndexedByLookup(pParse, pItem) ){
-    pTab = 0;
-  }
-  return pTab;
-}
-
-/* Return true if table pTab is read-only.
-**
-** A table is read-only if any of the following are true:
-**
-**   1) It is a virtual table and no implementation of the xUpdate method
-**      has been provided
-**
-**   2) It is a system table (i.e. sqlite_master), this call is not
-**      part of a nested parse and writable_schema pragma has not 
-**      been specified
-**
-**   3) The table is a shadow table, the database connection is in
-**      defensive mode, and the current tdsqlite3_prepare()
-**      is for a top-level SQL statement.
-*/
-static int tabIsReadOnly(Parse *pParse, Table *pTab){
-  tdsqlite3 *db;
-  if( IsVirtual(pTab) ){
-    return tdsqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0;
-  }
-  if( (pTab->tabFlags & (TF_Readonly|TF_Shadow))==0 ) return 0;
-  db = pParse->db;
-  if( (pTab->tabFlags & TF_Readonly)!=0 ){
-    return tdsqlite3WritableSchema(db)==0 && pParse->nested==0;
-  }
-  assert( pTab->tabFlags & TF_Shadow );
-  return tdsqlite3ReadOnlyShadowTables(db);
-}
-
-/*
-** Check to make sure the given table is writable.  If it is not
-** writable, generate an error message and return 1.  If it is
-** writable return 0;
-*/
-SQLITE_PRIVATE int tdsqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
-  if( tabIsReadOnly(pParse, pTab) ){
-    tdsqlite3ErrorMsg(pParse, "table %s may not be modified", pTab->zName);
-    return 1;
-  }
-#ifndef SQLITE_OMIT_VIEW
-  if( !viewOk && pTab->pSelect ){
-    tdsqlite3ErrorMsg(pParse,"cannot modify %s because it is a view",pTab->zName);
-    return 1;
-  }
-#endif
-  return 0;
-}
-
-
-#if !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER)
-/*
-** Evaluate a view and store its result in an ephemeral table.  The
-** pWhere argument is an optional WHERE clause that restricts the
-** set of rows in the view that are to be added to the ephemeral table.
-*/
-SQLITE_PRIVATE void tdsqlite3MaterializeView(
-  Parse *pParse,       /* Parsing context */
-  Table *pView,        /* View definition */
-  Expr *pWhere,        /* Optional WHERE clause to be added */
-  ExprList *pOrderBy,  /* Optional ORDER BY clause */
-  Expr *pLimit,        /* Optional LIMIT clause */
-  int iCur             /* Cursor number for ephemeral table */
-){
-  SelectDest dest;
-  Select *pSel;
-  SrcList *pFrom;
-  tdsqlite3 *db = pParse->db;
-  int iDb = tdsqlite3SchemaToIndex(db, pView->pSchema);
-  pWhere = tdsqlite3ExprDup(db, pWhere, 0);
-  pFrom = tdsqlite3SrcListAppend(pParse, 0, 0, 0);
-  if( pFrom ){
-    assert( pFrom->nSrc==1 );
-    pFrom->a[0].zName = tdsqlite3DbStrDup(db, pView->zName);
-    pFrom->a[0].zDatabase = tdsqlite3DbStrDup(db, db->aDb[iDb].zDbSName);
-    assert( pFrom->a[0].pOn==0 );
-    assert( pFrom->a[0].pUsing==0 );
-  }
-  pSel = tdsqlite3SelectNew(pParse, 0, pFrom, pWhere, 0, 0, pOrderBy, 
-                          SF_IncludeHidden, pLimit);
-  tdsqlite3SelectDestInit(&dest, SRT_EphemTab, iCur);
-  tdsqlite3Select(pParse, pSel, &dest);
-  tdsqlite3SelectDelete(db, pSel);
-}
-#endif /* !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER) */
-
-#if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY)
-/*
-** Generate an expression tree to implement the WHERE, ORDER BY,
-** and LIMIT/OFFSET portion of DELETE and UPDATE statements.
-**
-**     DELETE FROM table_wxyz WHERE a<5 ORDER BY a LIMIT 1;
-**                            \__________________________/
-**                               pLimitWhere (pInClause)
-*/
-SQLITE_PRIVATE Expr *tdsqlite3LimitWhere(
-  Parse *pParse,               /* The parser context */
-  SrcList *pSrc,               /* the FROM clause -- which tables to scan */
-  Expr *pWhere,                /* The WHERE clause.  May be null */
-  ExprList *pOrderBy,          /* The ORDER BY clause.  May be null */
-  Expr *pLimit,                /* The LIMIT clause.  May be null */
-  char *zStmtType              /* Either DELETE or UPDATE.  For err msgs. */
-){
-  tdsqlite3 *db = pParse->db;
-  Expr *pLhs = NULL;           /* LHS of IN(SELECT...) operator */
-  Expr *pInClause = NULL;      /* WHERE rowid IN ( select ) */
-  ExprList *pEList = NULL;     /* Expression list contaning only pSelectRowid */
-  SrcList *pSelectSrc = NULL;  /* SELECT rowid FROM x ... (dup of pSrc) */
-  Select *pSelect = NULL;      /* Complete SELECT tree */
-  Table *pTab;
-
-  /* Check that there isn't an ORDER BY without a LIMIT clause.
-  */
-  if( pOrderBy && pLimit==0 ) {
-    tdsqlite3ErrorMsg(pParse, "ORDER BY without LIMIT on %s", zStmtType);
-    tdsqlite3ExprDelete(pParse->db, pWhere);
-    tdsqlite3ExprListDelete(pParse->db, pOrderBy);
-    return 0;
-  }
-
-  /* We only need to generate a select expression if there
-  ** is a limit/offset term to enforce.
-  */
-  if( pLimit == 0 ) {
-    return pWhere;
-  }
-
-  /* Generate a select expression tree to enforce the limit/offset 
-  ** term for the DELETE or UPDATE statement.  For example:
-  **   DELETE FROM table_a WHERE col1=1 ORDER BY col2 LIMIT 1 OFFSET 1
-  ** becomes:
-  **   DELETE FROM table_a WHERE rowid IN ( 
-  **     SELECT rowid FROM table_a WHERE col1=1 ORDER BY col2 LIMIT 1 OFFSET 1
-  **   );
-  */
-
-  pTab = pSrc->a[0].pTab;
-  if( HasRowid(pTab) ){
-    pLhs = tdsqlite3PExpr(pParse, TK_ROW, 0, 0);
-    pEList = tdsqlite3ExprListAppend(
-        pParse, 0, tdsqlite3PExpr(pParse, TK_ROW, 0, 0)
-    );
-  }else{
-    Index *pPk = tdsqlite3PrimaryKeyIndex(pTab);
-    if( pPk->nKeyCol==1 ){
-      const char *zName = pTab->aCol[pPk->aiColumn[0]].zName;
-      pLhs = tdsqlite3Expr(db, TK_ID, zName);
-      pEList = tdsqlite3ExprListAppend(pParse, 0, tdsqlite3Expr(db, TK_ID, zName));
-    }else{
-      int i;
-      for(i=0; i<pPk->nKeyCol; i++){
-        Expr *p = tdsqlite3Expr(db, TK_ID, pTab->aCol[pPk->aiColumn[i]].zName);
-        pEList = tdsqlite3ExprListAppend(pParse, pEList, p);
-      }
-      pLhs = tdsqlite3PExpr(pParse, TK_VECTOR, 0, 0);
-      if( pLhs ){
-        pLhs->x.pList = tdsqlite3ExprListDup(db, pEList, 0);
-      }
-    }
-  }
-
-  /* duplicate the FROM clause as it is needed by both the DELETE/UPDATE tree
-  ** and the SELECT subtree. */
-  pSrc->a[0].pTab = 0;
-  pSelectSrc = tdsqlite3SrcListDup(pParse->db, pSrc, 0);
-  pSrc->a[0].pTab = pTab;
-  pSrc->a[0].pIBIndex = 0;
-
-  /* generate the SELECT expression tree. */
-  pSelect = tdsqlite3SelectNew(pParse, pEList, pSelectSrc, pWhere, 0 ,0, 
-      pOrderBy,0,pLimit
-  );
-
-  /* now generate the new WHERE rowid IN clause for the DELETE/UDPATE */
-  pInClause = tdsqlite3PExpr(pParse, TK_IN, pLhs, 0);
-  tdsqlite3PExprAddSelect(pParse, pInClause, pSelect);
-  return pInClause;
-}
-#endif /* defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) */
-       /*      && !defined(SQLITE_OMIT_SUBQUERY) */
-
-/*
-** Generate code for a DELETE FROM statement.
-**
-**     DELETE FROM table_wxyz WHERE a<5 AND b NOT NULL;
-**                 \________/       \________________/
-**                  pTabList              pWhere
-*/
-SQLITE_PRIVATE void tdsqlite3DeleteFrom(
-  Parse *pParse,         /* The parser context */
-  SrcList *pTabList,     /* The table from which we should delete things */
-  Expr *pWhere,          /* The WHERE clause.  May be null */
-  ExprList *pOrderBy,    /* ORDER BY clause. May be null */
-  Expr *pLimit           /* LIMIT clause. May be null */
-){
-  Vdbe *v;               /* The virtual database engine */
-  Table *pTab;           /* The table from which records will be deleted */
-  int i;                 /* Loop counter */
-  WhereInfo *pWInfo;     /* Information about the WHERE clause */
-  Index *pIdx;           /* For looping over indices of the table */
-  int iTabCur;           /* Cursor number for the table */
-  int iDataCur = 0;      /* VDBE cursor for the canonical data source */
-  int iIdxCur = 0;       /* Cursor number of the first index */
-  int nIdx;              /* Number of indices */
-  tdsqlite3 *db;           /* Main database structure */
-  AuthContext sContext;  /* Authorization context */
-  NameContext sNC;       /* Name context to resolve expressions in */
-  int iDb;               /* Database number */
-  int memCnt = 0;        /* Memory cell used for change counting */
-  int rcauth;            /* Value returned by authorization callback */
-  int eOnePass;          /* ONEPASS_OFF or _SINGLE or _MULTI */
-  int aiCurOnePass[2];   /* The write cursors opened by WHERE_ONEPASS */
-  u8 *aToOpen = 0;       /* Open cursor iTabCur+j if aToOpen[j] is true */
-  Index *pPk;            /* The PRIMARY KEY index on the table */
-  int iPk = 0;           /* First of nPk registers holding PRIMARY KEY value */
-  i16 nPk = 1;           /* Number of columns in the PRIMARY KEY */
-  int iKey;              /* Memory cell holding key of row to be deleted */
-  i16 nKey;              /* Number of memory cells in the row key */
-  int iEphCur = 0;       /* Ephemeral table holding all primary key values */
-  int iRowSet = 0;       /* Register for rowset of rows to delete */
-  int addrBypass = 0;    /* Address of jump over the delete logic */
-  int addrLoop = 0;      /* Top of the delete loop */
-  int addrEphOpen = 0;   /* Instruction to open the Ephemeral table */
-  int bComplex;          /* True if there are triggers or FKs or
-                         ** subqueries in the WHERE clause */
- 
-#ifndef SQLITE_OMIT_TRIGGER
-  int isView;                  /* True if attempting to delete from a view */
-  Trigger *pTrigger;           /* List of table triggers, if required */
-#endif
-
-  memset(&sContext, 0, sizeof(sContext));
-  db = pParse->db;
-  if( pParse->nErr || db->mallocFailed ){
-    goto delete_from_cleanup;
-  }
-  assert( pTabList->nSrc==1 );
-
-
-  /* Locate the table which we want to delete.  This table has to be
-  ** put in an SrcList structure because some of the subroutines we
-  ** will be calling are designed to work with multiple tables and expect
-  ** an SrcList* parameter instead of just a Table* parameter.
-  */
-  pTab = tdsqlite3SrcListLookup(pParse, pTabList);
-  if( pTab==0 )  goto delete_from_cleanup;
-
-  /* Figure out if we have any triggers and if the table being
-  ** deleted from is a view
-  */
-#ifndef SQLITE_OMIT_TRIGGER
-  pTrigger = tdsqlite3TriggersExist(pParse, pTab, TK_DELETE, 0, 0);
-  isView = pTab->pSelect!=0;
-#else
-# define pTrigger 0
-# define isView 0
-#endif
-  bComplex = pTrigger || tdsqlite3FkRequired(pParse, pTab, 0, 0);
-#ifdef SQLITE_OMIT_VIEW
-# undef isView
-# define isView 0
-#endif
-
-#ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
-  if( !isView ){
-    pWhere = tdsqlite3LimitWhere(
-        pParse, pTabList, pWhere, pOrderBy, pLimit, "DELETE"
-    );
-    pOrderBy = 0;
-    pLimit = 0;
-  }
-#endif
-
-  /* If pTab is really a view, make sure it has been initialized.
-  */
-  if( tdsqlite3ViewGetColumnNames(pParse, pTab) ){
-    goto delete_from_cleanup;
-  }
-
-  if( tdsqlite3IsReadOnly(pParse, pTab, (pTrigger?1:0)) ){
-    goto delete_from_cleanup;
-  }
-  iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-  assert( iDb<db->nDb );
-  rcauth = tdsqlite3AuthCheck(pParse, SQLITE_DELETE, pTab->zName, 0, 
-                            db->aDb[iDb].zDbSName);
-  assert( rcauth==SQLITE_OK || rcauth==SQLITE_DENY || rcauth==SQLITE_IGNORE );
-  if( rcauth==SQLITE_DENY ){
-    goto delete_from_cleanup;
-  }
-  assert(!isView || pTrigger);
-
-  /* Assign cursor numbers to the table and all its indices.
-  */
-  assert( pTabList->nSrc==1 );
-  iTabCur = pTabList->a[0].iCursor = pParse->nTab++;
-  for(nIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nIdx++){
-    pParse->nTab++;
-  }
-
-  /* Start the view context
-  */
-  if( isView ){
-    tdsqlite3AuthContextPush(pParse, &sContext, pTab->zName);
-  }
-
-  /* Begin generating code.
-  */
-  v = tdsqlite3GetVdbe(pParse);
-  if( v==0 ){
-    goto delete_from_cleanup;
-  }
-  if( pParse->nested==0 ) tdsqlite3VdbeCountChanges(v);
-  tdsqlite3BeginWriteOperation(pParse, bComplex, iDb);
-
-  /* If we are trying to delete from a view, realize that view into
-  ** an ephemeral table.
-  */
-#if !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER)
-  if( isView ){
-    tdsqlite3MaterializeView(pParse, pTab, 
-        pWhere, pOrderBy, pLimit, iTabCur
-    );
-    iDataCur = iIdxCur = iTabCur;
-    pOrderBy = 0;
-    pLimit = 0;
-  }
-#endif
-
-  /* Resolve the column names in the WHERE clause.
-  */
-  memset(&sNC, 0, sizeof(sNC));
-  sNC.pParse = pParse;
-  sNC.pSrcList = pTabList;
-  if( tdsqlite3ResolveExprNames(&sNC, pWhere) ){
-    goto delete_from_cleanup;
-  }
-
-  /* Initialize the counter of the number of rows deleted, if
-  ** we are counting rows.
-  */
-  if( (db->flags & SQLITE_CountRows)!=0
-   && !pParse->nested
-   && !pParse->pTriggerTab
-  ){
-    memCnt = ++pParse->nMem;
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 0, memCnt);
-  }
-
-#ifndef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
-  /* Special case: A DELETE without a WHERE clause deletes everything.
-  ** It is easier just to erase the whole table. Prior to version 3.6.5,
-  ** this optimization caused the row change count (the value returned by 
-  ** API function tdsqlite3_count_changes) to be set incorrectly.
-  **
-  ** The "rcauth==SQLITE_OK" terms is the
-  ** IMPLEMENTATION-OF: R-17228-37124 If the action code is SQLITE_DELETE and
-  ** the callback returns SQLITE_IGNORE then the DELETE operation proceeds but
-  ** the truncate optimization is disabled and all rows are deleted
-  ** individually.
-  */
-  if( rcauth==SQLITE_OK
-   && pWhere==0
-   && !bComplex
-   && !IsVirtual(pTab)
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-   && db->xPreUpdateCallback==0
-#endif
-  ){
-    assert( !isView );
-    tdsqlite3TableLock(pParse, iDb, pTab->tnum, 1, pTab->zName);
-    if( HasRowid(pTab) ){
-      tdsqlite3VdbeAddOp4(v, OP_Clear, pTab->tnum, iDb, memCnt ? memCnt : -1,
-                        pTab->zName, P4_STATIC);
-    }
-    for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-      assert( pIdx->pSchema==pTab->pSchema );
-      tdsqlite3VdbeAddOp2(v, OP_Clear, pIdx->tnum, iDb);
-    }
-  }else
-#endif /* SQLITE_OMIT_TRUNCATE_OPTIMIZATION */
-  {
-    u16 wcf = WHERE_ONEPASS_DESIRED|WHERE_DUPLICATES_OK|WHERE_SEEK_TABLE;
-    if( sNC.ncFlags & NC_VarSelect ) bComplex = 1;
-    wcf |= (bComplex ? 0 : WHERE_ONEPASS_MULTIROW);
-    if( HasRowid(pTab) ){
-      /* For a rowid table, initialize the RowSet to an empty set */
-      pPk = 0;
-      nPk = 1;
-      iRowSet = ++pParse->nMem;
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, iRowSet);
-    }else{
-      /* For a WITHOUT ROWID table, create an ephemeral table used to
-      ** hold all primary keys for rows to be deleted. */
-      pPk = tdsqlite3PrimaryKeyIndex(pTab);
-      assert( pPk!=0 );
-      nPk = pPk->nKeyCol;
-      iPk = pParse->nMem+1;
-      pParse->nMem += nPk;
-      iEphCur = pParse->nTab++;
-      addrEphOpen = tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, iEphCur, nPk);
-      tdsqlite3VdbeSetP4KeyInfo(pParse, pPk);
-    }
-  
-    /* Construct a query to find the rowid or primary key for every row
-    ** to be deleted, based on the WHERE clause. Set variable eOnePass
-    ** to indicate the strategy used to implement this delete:
-    **
-    **  ONEPASS_OFF:    Two-pass approach - use a FIFO for rowids/PK values.
-    **  ONEPASS_SINGLE: One-pass approach - at most one row deleted.
-    **  ONEPASS_MULTI:  One-pass approach - any number of rows may be deleted.
-    */
-    pWInfo = tdsqlite3WhereBegin(pParse, pTabList, pWhere, 0, 0, wcf, iTabCur+1);
-    if( pWInfo==0 ) goto delete_from_cleanup;
-    eOnePass = tdsqlite3WhereOkOnePass(pWInfo, aiCurOnePass);
-    assert( IsVirtual(pTab)==0 || eOnePass!=ONEPASS_MULTI );
-    assert( IsVirtual(pTab) || bComplex || eOnePass!=ONEPASS_OFF );
-    if( eOnePass!=ONEPASS_SINGLE ) tdsqlite3MultiWrite(pParse);
-  
-    /* Keep track of the number of rows to be deleted */
-    if( memCnt ){
-      tdsqlite3VdbeAddOp2(v, OP_AddImm, memCnt, 1);
-    }
-  
-    /* Extract the rowid or primary key for the current row */
-    if( pPk ){
-      for(i=0; i<nPk; i++){
-        assert( pPk->aiColumn[i]>=0 );
-        tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iTabCur,
-                                        pPk->aiColumn[i], iPk+i);
-      }
-      iKey = iPk;
-    }else{
-      iKey = ++pParse->nMem;
-      tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iTabCur, -1, iKey);
-    }
-  
-    if( eOnePass!=ONEPASS_OFF ){
-      /* For ONEPASS, no need to store the rowid/primary-key. There is only
-      ** one, so just keep it in its register(s) and fall through to the
-      ** delete code.  */
-      nKey = nPk; /* OP_Found will use an unpacked key */
-      aToOpen = tdsqlite3DbMallocRawNN(db, nIdx+2);
-      if( aToOpen==0 ){
-        tdsqlite3WhereEnd(pWInfo);
-        goto delete_from_cleanup;
-      }
-      memset(aToOpen, 1, nIdx+1);
-      aToOpen[nIdx+1] = 0;
-      if( aiCurOnePass[0]>=0 ) aToOpen[aiCurOnePass[0]-iTabCur] = 0;
-      if( aiCurOnePass[1]>=0 ) aToOpen[aiCurOnePass[1]-iTabCur] = 0;
-      if( addrEphOpen ) tdsqlite3VdbeChangeToNoop(v, addrEphOpen);
-    }else{
-      if( pPk ){
-        /* Add the PK key for this row to the temporary table */
-        iKey = ++pParse->nMem;
-        nKey = 0;   /* Zero tells OP_Found to use a composite key */
-        tdsqlite3VdbeAddOp4(v, OP_MakeRecord, iPk, nPk, iKey,
-            tdsqlite3IndexAffinityStr(pParse->db, pPk), nPk);
-        tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iEphCur, iKey, iPk, nPk);
-      }else{
-        /* Add the rowid of the row to be deleted to the RowSet */
-        nKey = 1;  /* OP_DeferredSeek always uses a single rowid */
-        tdsqlite3VdbeAddOp2(v, OP_RowSetAdd, iRowSet, iKey);
-      }
-    }
-  
-    /* If this DELETE cannot use the ONEPASS strategy, this is the 
-    ** end of the WHERE loop */
-    if( eOnePass!=ONEPASS_OFF ){
-      addrBypass = tdsqlite3VdbeMakeLabel(pParse);
-    }else{
-      tdsqlite3WhereEnd(pWInfo);
-    }
-  
-    /* Unless this is a view, open cursors for the table we are 
-    ** deleting from and all its indices. If this is a view, then the
-    ** only effect this statement has is to fire the INSTEAD OF 
-    ** triggers.
-    */
-    if( !isView ){
-      int iAddrOnce = 0;
-      if( eOnePass==ONEPASS_MULTI ){
-        iAddrOnce = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-      }
-      testcase( IsVirtual(pTab) );
-      tdsqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, OPFLAG_FORDELETE,
-                                 iTabCur, aToOpen, &iDataCur, &iIdxCur);
-      assert( pPk || IsVirtual(pTab) || iDataCur==iTabCur );
-      assert( pPk || IsVirtual(pTab) || iIdxCur==iDataCur+1 );
-      if( eOnePass==ONEPASS_MULTI ) tdsqlite3VdbeJumpHere(v, iAddrOnce);
-    }
-  
-    /* Set up a loop over the rowids/primary-keys that were found in the
-    ** where-clause loop above.
-    */
-    if( eOnePass!=ONEPASS_OFF ){
-      assert( nKey==nPk );  /* OP_Found will use an unpacked key */
-      if( !IsVirtual(pTab) && aToOpen[iDataCur-iTabCur] ){
-        assert( pPk!=0 || pTab->pSelect!=0 );
-        tdsqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, addrBypass, iKey, nKey);
-        VdbeCoverage(v);
-      }
-    }else if( pPk ){
-      addrLoop = tdsqlite3VdbeAddOp1(v, OP_Rewind, iEphCur); VdbeCoverage(v);
-      if( IsVirtual(pTab) ){
-        tdsqlite3VdbeAddOp3(v, OP_Column, iEphCur, 0, iKey);
-      }else{
-        tdsqlite3VdbeAddOp2(v, OP_RowData, iEphCur, iKey);
-      }
-      assert( nKey==0 );  /* OP_Found will use a composite key */
-    }else{
-      addrLoop = tdsqlite3VdbeAddOp3(v, OP_RowSetRead, iRowSet, 0, iKey);
-      VdbeCoverage(v);
-      assert( nKey==1 );
-    }  
-  
-    /* Delete the row */
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    if( IsVirtual(pTab) ){
-      const char *pVTab = (const char *)tdsqlite3GetVTable(db, pTab);
-      tdsqlite3VtabMakeWritable(pParse, pTab);
-      assert( eOnePass==ONEPASS_OFF || eOnePass==ONEPASS_SINGLE );
-      tdsqlite3MayAbort(pParse);
-      if( eOnePass==ONEPASS_SINGLE ){
-        tdsqlite3VdbeAddOp1(v, OP_Close, iTabCur);
-        if( tdsqlite3IsToplevel(pParse) ){
-          pParse->isMultiWrite = 0;
-        }
-      }
-      tdsqlite3VdbeAddOp4(v, OP_VUpdate, 0, 1, iKey, pVTab, P4_VTAB);
-      tdsqlite3VdbeChangeP5(v, OE_Abort);
-    }else
-#endif
-    {
-      int count = (pParse->nested==0);    /* True to count changes */
-      tdsqlite3GenerateRowDelete(pParse, pTab, pTrigger, iDataCur, iIdxCur,
-          iKey, nKey, count, OE_Default, eOnePass, aiCurOnePass[1]);
-    }
-  
-    /* End of the loop over all rowids/primary-keys. */
-    if( eOnePass!=ONEPASS_OFF ){
-      tdsqlite3VdbeResolveLabel(v, addrBypass);
-      tdsqlite3WhereEnd(pWInfo);
-    }else if( pPk ){
-      tdsqlite3VdbeAddOp2(v, OP_Next, iEphCur, addrLoop+1); VdbeCoverage(v);
-      tdsqlite3VdbeJumpHere(v, addrLoop);
-    }else{
-      tdsqlite3VdbeGoto(v, addrLoop);
-      tdsqlite3VdbeJumpHere(v, addrLoop);
-    }     
-  } /* End non-truncate path */
-
-  /* Update the sqlite_sequence table by storing the content of the
-  ** maximum rowid counter values recorded while inserting into
-  ** autoincrement tables.
-  */
-  if( pParse->nested==0 && pParse->pTriggerTab==0 ){
-    tdsqlite3AutoincrementEnd(pParse);
-  }
-
-  /* Return the number of rows that were deleted. If this routine is 
-  ** generating code because of a call to tdsqlite3NestedParse(), do not
-  ** invoke the callback function.
-  */
-  if( memCnt ){
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, memCnt, 1);
-    tdsqlite3VdbeSetNumCols(v, 1);
-    tdsqlite3VdbeSetColName(v, 0, COLNAME_NAME, "rows deleted", SQLITE_STATIC);
-  }
-
-delete_from_cleanup:
-  tdsqlite3AuthContextPop(&sContext);
-  tdsqlite3SrcListDelete(db, pTabList);
-  tdsqlite3ExprDelete(db, pWhere);
-#if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) 
-  tdsqlite3ExprListDelete(db, pOrderBy);
-  tdsqlite3ExprDelete(db, pLimit);
-#endif
-  tdsqlite3DbFree(db, aToOpen);
-  return;
-}
-/* Make sure "isView" and other macros defined above are undefined. Otherwise
-** they may interfere with compilation of other functions in this file
-** (or in another file, if this file becomes part of the amalgamation).  */
-#ifdef isView
- #undef isView
-#endif
-#ifdef pTrigger
- #undef pTrigger
-#endif
-
-/*
-** This routine generates VDBE code that causes a single row of a
-** single table to be deleted.  Both the original table entry and
-** all indices are removed.
-**
-** Preconditions:
-**
-**   1.  iDataCur is an open cursor on the btree that is the canonical data
-**       store for the table.  (This will be either the table itself,
-**       in the case of a rowid table, or the PRIMARY KEY index in the case
-**       of a WITHOUT ROWID table.)
-**
-**   2.  Read/write cursors for all indices of pTab must be open as
-**       cursor number iIdxCur+i for the i-th index.
-**
-**   3.  The primary key for the row to be deleted must be stored in a
-**       sequence of nPk memory cells starting at iPk.  If nPk==0 that means
-**       that a search record formed from OP_MakeRecord is contained in the
-**       single memory location iPk.
-**
-** eMode:
-**   Parameter eMode may be passed either ONEPASS_OFF (0), ONEPASS_SINGLE, or
-**   ONEPASS_MULTI.  If eMode is not ONEPASS_OFF, then the cursor
-**   iDataCur already points to the row to delete. If eMode is ONEPASS_OFF
-**   then this function must seek iDataCur to the entry identified by iPk
-**   and nPk before reading from it.
-**
-**   If eMode is ONEPASS_MULTI, then this call is being made as part
-**   of a ONEPASS delete that affects multiple rows. In this case, if 
-**   iIdxNoSeek is a valid cursor number (>=0) and is not the same as
-**   iDataCur, then its position should be preserved following the delete
-**   operation. Or, if iIdxNoSeek is not a valid cursor number, the
-**   position of iDataCur should be preserved instead.
-**
-** iIdxNoSeek:
-**   If iIdxNoSeek is a valid cursor number (>=0) not equal to iDataCur,
-**   then it identifies an index cursor (from within array of cursors
-**   starting at iIdxCur) that already points to the index entry to be deleted.
-**   Except, this optimization is disabled if there are BEFORE triggers since
-**   the trigger body might have moved the cursor.
-*/
-SQLITE_PRIVATE void tdsqlite3GenerateRowDelete(
-  Parse *pParse,     /* Parsing context */
-  Table *pTab,       /* Table containing the row to be deleted */
-  Trigger *pTrigger, /* List of triggers to (potentially) fire */
-  int iDataCur,      /* Cursor from which column data is extracted */
-  int iIdxCur,       /* First index cursor */
-  int iPk,           /* First memory cell containing the PRIMARY KEY */
-  i16 nPk,           /* Number of PRIMARY KEY memory cells */
-  u8 count,          /* If non-zero, increment the row change counter */
-  u8 onconf,         /* Default ON CONFLICT policy for triggers */
-  u8 eMode,          /* ONEPASS_OFF, _SINGLE, or _MULTI.  See above */
-  int iIdxNoSeek     /* Cursor number of cursor that does not need seeking */
-){
-  Vdbe *v = pParse->pVdbe;        /* Vdbe */
-  int iOld = 0;                   /* First register in OLD.* array */
-  int iLabel;                     /* Label resolved to end of generated code */
-  u8 opSeek;                      /* Seek opcode */
-
-  /* Vdbe is guaranteed to have been allocated by this stage. */
-  assert( v );
-  VdbeModuleComment((v, "BEGIN: GenRowDel(%d,%d,%d,%d)",
-                         iDataCur, iIdxCur, iPk, (int)nPk));
-
-  /* Seek cursor iCur to the row to delete. If this row no longer exists 
-  ** (this can happen if a trigger program has already deleted it), do
-  ** not attempt to delete it or fire any DELETE triggers.  */
-  iLabel = tdsqlite3VdbeMakeLabel(pParse);
-  opSeek = HasRowid(pTab) ? OP_NotExists : OP_NotFound;
-  if( eMode==ONEPASS_OFF ){
-    tdsqlite3VdbeAddOp4Int(v, opSeek, iDataCur, iLabel, iPk, nPk);
-    VdbeCoverageIf(v, opSeek==OP_NotExists);
-    VdbeCoverageIf(v, opSeek==OP_NotFound);
-  }
- 
-  /* If there are any triggers to fire, allocate a range of registers to
-  ** use for the old.* references in the triggers.  */
-  if( tdsqlite3FkRequired(pParse, pTab, 0, 0) || pTrigger ){
-    u32 mask;                     /* Mask of OLD.* columns in use */
-    int iCol;                     /* Iterator used while populating OLD.* */
-    int addrStart;                /* Start of BEFORE trigger programs */
-
-    /* TODO: Could use temporary registers here. Also could attempt to
-    ** avoid copying the contents of the rowid register.  */
-    mask = tdsqlite3TriggerColmask(
-        pParse, pTrigger, 0, 0, TRIGGER_BEFORE|TRIGGER_AFTER, pTab, onconf
-    );
-    mask |= tdsqlite3FkOldmask(pParse, pTab);
-    iOld = pParse->nMem+1;
-    pParse->nMem += (1 + pTab->nCol);
-
-    /* Populate the OLD.* pseudo-table register array. These values will be 
-    ** used by any BEFORE and AFTER triggers that exist.  */
-    tdsqlite3VdbeAddOp2(v, OP_Copy, iPk, iOld);
-    for(iCol=0; iCol<pTab->nCol; iCol++){
-      testcase( mask!=0xffffffff && iCol==31 );
-      testcase( mask!=0xffffffff && iCol==32 );
-      if( mask==0xffffffff || (iCol<=31 && (mask & MASKBIT32(iCol))!=0) ){
-        int kk = tdsqlite3TableColumnToStorage(pTab, iCol);
-        tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, iCol, iOld+kk+1);
-      }
-    }
-
-    /* Invoke BEFORE DELETE trigger programs. */
-    addrStart = tdsqlite3VdbeCurrentAddr(v);
-    tdsqlite3CodeRowTrigger(pParse, pTrigger, 
-        TK_DELETE, 0, TRIGGER_BEFORE, pTab, iOld, onconf, iLabel
-    );
-
-    /* If any BEFORE triggers were coded, then seek the cursor to the 
-    ** row to be deleted again. It may be that the BEFORE triggers moved
-    ** the cursor or already deleted the row that the cursor was
-    ** pointing to.
-    **
-    ** Also disable the iIdxNoSeek optimization since the BEFORE trigger
-    ** may have moved that cursor.
-    */
-    if( addrStart<tdsqlite3VdbeCurrentAddr(v) ){
-      tdsqlite3VdbeAddOp4Int(v, opSeek, iDataCur, iLabel, iPk, nPk);
-      VdbeCoverageIf(v, opSeek==OP_NotExists);
-      VdbeCoverageIf(v, opSeek==OP_NotFound);
-      testcase( iIdxNoSeek>=0 );
-      iIdxNoSeek = -1;
-    }
-
-    /* Do FK processing. This call checks that any FK constraints that
-    ** refer to this table (i.e. constraints attached to other tables) 
-    ** are not violated by deleting this row.  */
-    tdsqlite3FkCheck(pParse, pTab, iOld, 0, 0, 0);
-  }
-
-  /* Delete the index and table entries. Skip this step if pTab is really
-  ** a view (in which case the only effect of the DELETE statement is to
-  ** fire the INSTEAD OF triggers).  
-  **
-  ** If variable 'count' is non-zero, then this OP_Delete instruction should
-  ** invoke the update-hook. The pre-update-hook, on the other hand should
-  ** be invoked unless table pTab is a system table. The difference is that
-  ** the update-hook is not invoked for rows removed by REPLACE, but the 
-  ** pre-update-hook is.
-  */ 
-  if( pTab->pSelect==0 ){
-    u8 p5 = 0;
-    tdsqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur,0,iIdxNoSeek);
-    tdsqlite3VdbeAddOp2(v, OP_Delete, iDataCur, (count?OPFLAG_NCHANGE:0));
-    if( pParse->nested==0 || 0==tdsqlite3_stricmp(pTab->zName, "sqlite_stat1") ){
-      tdsqlite3VdbeAppendP4(v, (char*)pTab, P4_TABLE);
-    }
-    if( eMode!=ONEPASS_OFF ){
-      tdsqlite3VdbeChangeP5(v, OPFLAG_AUXDELETE);
-    }
-    if( iIdxNoSeek>=0 && iIdxNoSeek!=iDataCur ){
-      tdsqlite3VdbeAddOp1(v, OP_Delete, iIdxNoSeek);
-    }
-    if( eMode==ONEPASS_MULTI ) p5 |= OPFLAG_SAVEPOSITION;
-    tdsqlite3VdbeChangeP5(v, p5);
-  }
-
-  /* Do any ON CASCADE, SET NULL or SET DEFAULT operations required to
-  ** handle rows (possibly in other tables) that refer via a foreign key
-  ** to the row just deleted. */ 
-  tdsqlite3FkActions(pParse, pTab, 0, iOld, 0, 0);
-
-  /* Invoke AFTER DELETE trigger programs. */
-  tdsqlite3CodeRowTrigger(pParse, pTrigger, 
-      TK_DELETE, 0, TRIGGER_AFTER, pTab, iOld, onconf, iLabel
-  );
-
-  /* Jump here if the row had already been deleted before any BEFORE
-  ** trigger programs were invoked. Or if a trigger program throws a 
-  ** RAISE(IGNORE) exception.  */
-  tdsqlite3VdbeResolveLabel(v, iLabel);
-  VdbeModuleComment((v, "END: GenRowDel()"));
-}
-
-/*
-** This routine generates VDBE code that causes the deletion of all
-** index entries associated with a single row of a single table, pTab
-**
-** Preconditions:
-**
-**   1.  A read/write cursor "iDataCur" must be open on the canonical storage
-**       btree for the table pTab.  (This will be either the table itself
-**       for rowid tables or to the primary key index for WITHOUT ROWID
-**       tables.)
-**
-**   2.  Read/write cursors for all indices of pTab must be open as
-**       cursor number iIdxCur+i for the i-th index.  (The pTab->pIndex
-**       index is the 0-th index.)
-**
-**   3.  The "iDataCur" cursor must be already be positioned on the row
-**       that is to be deleted.
-*/
-SQLITE_PRIVATE void tdsqlite3GenerateRowIndexDelete(
-  Parse *pParse,     /* Parsing and code generating context */
-  Table *pTab,       /* Table containing the row to be deleted */
-  int iDataCur,      /* Cursor of table holding data. */
-  int iIdxCur,       /* First index cursor */
-  int *aRegIdx,      /* Only delete if aRegIdx!=0 && aRegIdx[i]>0 */
-  int iIdxNoSeek     /* Do not delete from this cursor */
-){
-  int i;             /* Index loop counter */
-  int r1 = -1;       /* Register holding an index key */
-  int iPartIdxLabel; /* Jump destination for skipping partial index entries */
-  Index *pIdx;       /* Current index */
-  Index *pPrior = 0; /* Prior index */
-  Vdbe *v;           /* The prepared statement under construction */
-  Index *pPk;        /* PRIMARY KEY index, or NULL for rowid tables */
-
-  v = pParse->pVdbe;
-  pPk = HasRowid(pTab) ? 0 : tdsqlite3PrimaryKeyIndex(pTab);
-  for(i=0, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
-    assert( iIdxCur+i!=iDataCur || pPk==pIdx );
-    if( aRegIdx!=0 && aRegIdx[i]==0 ) continue;
-    if( pIdx==pPk ) continue;
-    if( iIdxCur+i==iIdxNoSeek ) continue;
-    VdbeModuleComment((v, "GenRowIdxDel for %s", pIdx->zName));
-    r1 = tdsqlite3GenerateIndexKey(pParse, pIdx, iDataCur, 0, 1,
-        &iPartIdxLabel, pPrior, r1);
-    tdsqlite3VdbeAddOp3(v, OP_IdxDelete, iIdxCur+i, r1,
-        pIdx->uniqNotNull ? pIdx->nKeyCol : pIdx->nColumn);
-    tdsqlite3ResolvePartIdxLabel(pParse, iPartIdxLabel);
-    pPrior = pIdx;
-  }
-}
-
-/*
-** Generate code that will assemble an index key and stores it in register
-** regOut.  The key with be for index pIdx which is an index on pTab.
-** iCur is the index of a cursor open on the pTab table and pointing to
-** the entry that needs indexing.  If pTab is a WITHOUT ROWID table, then
-** iCur must be the cursor of the PRIMARY KEY index.
-**
-** Return a register number which is the first in a block of
-** registers that holds the elements of the index key.  The
-** block of registers has already been deallocated by the time
-** this routine returns.
-**
-** If *piPartIdxLabel is not NULL, fill it in with a label and jump
-** to that label if pIdx is a partial index that should be skipped.
-** The label should be resolved using tdsqlite3ResolvePartIdxLabel().
-** A partial index should be skipped if its WHERE clause evaluates
-** to false or null.  If pIdx is not a partial index, *piPartIdxLabel
-** will be set to zero which is an empty label that is ignored by
-** tdsqlite3ResolvePartIdxLabel().
-**
-** The pPrior and regPrior parameters are used to implement a cache to
-** avoid unnecessary register loads.  If pPrior is not NULL, then it is
-** a pointer to a different index for which an index key has just been
-** computed into register regPrior.  If the current pIdx index is generating
-** its key into the same sequence of registers and if pPrior and pIdx share
-** a column in common, then the register corresponding to that column already
-** holds the correct value and the loading of that register is skipped.
-** This optimization is helpful when doing a DELETE or an INTEGRITY_CHECK 
-** on a table with multiple indices, and especially with the ROWID or
-** PRIMARY KEY columns of the index.
-*/
-SQLITE_PRIVATE int tdsqlite3GenerateIndexKey(
-  Parse *pParse,       /* Parsing context */
-  Index *pIdx,         /* The index for which to generate a key */
-  int iDataCur,        /* Cursor number from which to take column data */
-  int regOut,          /* Put the new key into this register if not 0 */
-  int prefixOnly,      /* Compute only a unique prefix of the key */
-  int *piPartIdxLabel, /* OUT: Jump to this label to skip partial index */
-  Index *pPrior,       /* Previously generated index key */
-  int regPrior         /* Register holding previous generated key */
-){
-  Vdbe *v = pParse->pVdbe;
-  int j;
-  int regBase;
-  int nCol;
-
-  if( piPartIdxLabel ){
-    if( pIdx->pPartIdxWhere ){
-      *piPartIdxLabel = tdsqlite3VdbeMakeLabel(pParse);
-      pParse->iSelfTab = iDataCur + 1;
-      tdsqlite3ExprIfFalseDup(pParse, pIdx->pPartIdxWhere, *piPartIdxLabel, 
-                            SQLITE_JUMPIFNULL);
-      pParse->iSelfTab = 0;
-      pPrior = 0; /* Ticket a9efb42811fa41ee 2019-11-02;
-                  ** pPartIdxWhere may have corrupted regPrior registers */
-    }else{
-      *piPartIdxLabel = 0;
-    }
-  }
-  nCol = (prefixOnly && pIdx->uniqNotNull) ? pIdx->nKeyCol : pIdx->nColumn;
-  regBase = tdsqlite3GetTempRange(pParse, nCol);
-  if( pPrior && (regBase!=regPrior || pPrior->pPartIdxWhere) ) pPrior = 0;
-  for(j=0; j<nCol; j++){
-    if( pPrior
-     && pPrior->aiColumn[j]==pIdx->aiColumn[j]
-     && pPrior->aiColumn[j]!=XN_EXPR
-    ){
-      /* This column was already computed by the previous index */
-      continue;
-    }
-    tdsqlite3ExprCodeLoadIndexColumn(pParse, pIdx, iDataCur, j, regBase+j);
-    /* If the column affinity is REAL but the number is an integer, then it
-    ** might be stored in the table as an integer (using a compact
-    ** representation) then converted to REAL by an OP_RealAffinity opcode.
-    ** But we are getting ready to store this value back into an index, where
-    ** it should be converted by to INTEGER again.  So omit the OP_RealAffinity
-    ** opcode if it is present */
-    tdsqlite3VdbeDeletePriorOpcode(v, OP_RealAffinity);
-  }
-  if( regOut ){
-    tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regBase, nCol, regOut);
-    if( pIdx->pTable->pSelect ){
-      const char *zAff = tdsqlite3IndexAffinityStr(pParse->db, pIdx);
-      tdsqlite3VdbeChangeP4(v, -1, zAff, P4_TRANSIENT);
-    }
-  }
-  tdsqlite3ReleaseTempRange(pParse, regBase, nCol);
-  return regBase;
-}
-
-/*
-** If a prior call to tdsqlite3GenerateIndexKey() generated a jump-over label
-** because it was a partial index, then this routine should be called to
-** resolve that label.
-*/
-SQLITE_PRIVATE void tdsqlite3ResolvePartIdxLabel(Parse *pParse, int iLabel){
-  if( iLabel ){
-    tdsqlite3VdbeResolveLabel(pParse->pVdbe, iLabel);
-  }
-}
-
-/************** End of delete.c **********************************************/
-/************** Begin file func.c ********************************************/
-/*
-** 2002 February 23
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the C-language implementations for many of the SQL
-** functions of SQLite.  (Some function, and in particular the date and
-** time functions, are implemented separately.)
-*/
-/* #include "sqliteInt.h" */
-/* #include <stdlib.h> */
-/* #include <assert.h> */
-#ifndef SQLITE_OMIT_FLOATING_POINT
-/* #include <math.h> */
-#endif
-/* #include "vdbeInt.h" */
-
-/*
-** Return the collating function associated with a function.
-*/
-static CollSeq *tdsqlite3GetFuncCollSeq(tdsqlite3_context *context){
-  VdbeOp *pOp;
-  assert( context->pVdbe!=0 );
-  pOp = &context->pVdbe->aOp[context->iOp-1];
-  assert( pOp->opcode==OP_CollSeq );
-  assert( pOp->p4type==P4_COLLSEQ );
-  return pOp->p4.pColl;
-}
-
-/*
-** Indicate that the accumulator load should be skipped on this
-** iteration of the aggregate loop.
-*/
-static void tdsqlite3SkipAccumulatorLoad(tdsqlite3_context *context){
-  assert( context->isError<=0 );
-  context->isError = -1;
-  context->skipFlag = 1;
-}
-
-/*
-** Implementation of the non-aggregate min() and max() functions
-*/
-static void minmaxFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  int i;
-  int mask;    /* 0 for min() or 0xffffffff for max() */
-  int iBest;
-  CollSeq *pColl;
-
-  assert( argc>1 );
-  mask = tdsqlite3_user_data(context)==0 ? 0 : -1;
-  pColl = tdsqlite3GetFuncCollSeq(context);
-  assert( pColl );
-  assert( mask==-1 || mask==0 );
-  iBest = 0;
-  if( tdsqlite3_value_type(argv[0])==SQLITE_NULL ) return;
-  for(i=1; i<argc; i++){
-    if( tdsqlite3_value_type(argv[i])==SQLITE_NULL ) return;
-    if( (tdsqlite3MemCompare(argv[iBest], argv[i], pColl)^mask)>=0 ){
-      testcase( mask==0 );
-      iBest = i;
-    }
-  }
-  tdsqlite3_result_value(context, argv[iBest]);
-}
-
-/*
-** Return the type of the argument.
-*/
-static void typeofFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **argv
-){
-  static const char *azType[] = { "integer", "real", "text", "blob", "null" };
-  int i = tdsqlite3_value_type(argv[0]) - 1;
-  UNUSED_PARAMETER(NotUsed);
-  assert( i>=0 && i<ArraySize(azType) );
-  assert( SQLITE_INTEGER==1 );
-  assert( SQLITE_FLOAT==2 );
-  assert( SQLITE_TEXT==3 );
-  assert( SQLITE_BLOB==4 );
-  assert( SQLITE_NULL==5 );
-  /* EVIDENCE-OF: R-01470-60482 The tdsqlite3_value_type(V) interface returns
-  ** the datatype code for the initial datatype of the tdsqlite3_value object
-  ** V. The returned value is one of SQLITE_INTEGER, SQLITE_FLOAT,
-  ** SQLITE_TEXT, SQLITE_BLOB, or SQLITE_NULL. */
-  tdsqlite3_result_text(context, azType[i], -1, SQLITE_STATIC);
-}
-
-
-/*
-** Implementation of the length() function
-*/
-static void lengthFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  switch( tdsqlite3_value_type(argv[0]) ){
-    case SQLITE_BLOB:
-    case SQLITE_INTEGER:
-    case SQLITE_FLOAT: {
-      tdsqlite3_result_int(context, tdsqlite3_value_bytes(argv[0]));
-      break;
-    }
-    case SQLITE_TEXT: {
-      const unsigned char *z = tdsqlite3_value_text(argv[0]);
-      const unsigned char *z0;
-      unsigned char c;
-      if( z==0 ) return;
-      z0 = z;
-      while( (c = *z)!=0 ){
-        z++;
-        if( c>=0xc0 ){
-          while( (*z & 0xc0)==0x80 ){ z++; z0++; }
-        }
-      }
-      tdsqlite3_result_int(context, (int)(z-z0));
-      break;
-    }
-    default: {
-      tdsqlite3_result_null(context);
-      break;
-    }
-  }
-}
-
-/*
-** Implementation of the abs() function.
-**
-** IMP: R-23979-26855 The abs(X) function returns the absolute value of
-** the numeric argument X. 
-*/
-static void absFunc(tdsqlite3_context *context, int argc, tdsqlite3_value **argv){
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  switch( tdsqlite3_value_type(argv[0]) ){
-    case SQLITE_INTEGER: {
-      i64 iVal = tdsqlite3_value_int64(argv[0]);
-      if( iVal<0 ){
-        if( iVal==SMALLEST_INT64 ){
-          /* IMP: R-31676-45509 If X is the integer -9223372036854775808
-          ** then abs(X) throws an integer overflow error since there is no
-          ** equivalent positive 64-bit two complement value. */
-          tdsqlite3_result_error(context, "integer overflow", -1);
-          return;
-        }
-        iVal = -iVal;
-      } 
-      tdsqlite3_result_int64(context, iVal);
-      break;
-    }
-    case SQLITE_NULL: {
-      /* IMP: R-37434-19929 Abs(X) returns NULL if X is NULL. */
-      tdsqlite3_result_null(context);
-      break;
-    }
-    default: {
-      /* Because tdsqlite3_value_double() returns 0.0 if the argument is not
-      ** something that can be converted into a number, we have:
-      ** IMP: R-01992-00519 Abs(X) returns 0.0 if X is a string or blob
-      ** that cannot be converted to a numeric value.
-      */
-      double rVal = tdsqlite3_value_double(argv[0]);
-      if( rVal<0 ) rVal = -rVal;
-      tdsqlite3_result_double(context, rVal);
-      break;
-    }
-  }
-}
-
-/*
-** Implementation of the instr() function.
-**
-** instr(haystack,needle) finds the first occurrence of needle
-** in haystack and returns the number of previous characters plus 1,
-** or 0 if needle does not occur within haystack.
-**
-** If both haystack and needle are BLOBs, then the result is one more than
-** the number of bytes in haystack prior to the first occurrence of needle,
-** or 0 if needle never occurs in haystack.
-*/
-static void instrFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  const unsigned char *zHaystack;
-  const unsigned char *zNeedle;
-  int nHaystack;
-  int nNeedle;
-  int typeHaystack, typeNeedle;
-  int N = 1;
-  int isText;
-  unsigned char firstChar;
-  tdsqlite3_value *pC1 = 0;
-  tdsqlite3_value *pC2 = 0;
-
-  UNUSED_PARAMETER(argc);
-  typeHaystack = tdsqlite3_value_type(argv[0]);
-  typeNeedle = tdsqlite3_value_type(argv[1]);
-  if( typeHaystack==SQLITE_NULL || typeNeedle==SQLITE_NULL ) return;
-  nHaystack = tdsqlite3_value_bytes(argv[0]);
-  nNeedle = tdsqlite3_value_bytes(argv[1]);
-  if( nNeedle>0 ){
-    if( typeHaystack==SQLITE_BLOB && typeNeedle==SQLITE_BLOB ){
-      zHaystack = tdsqlite3_value_blob(argv[0]);
-      zNeedle = tdsqlite3_value_blob(argv[1]);
-      isText = 0;
-    }else if( typeHaystack!=SQLITE_BLOB && typeNeedle!=SQLITE_BLOB ){
-      zHaystack = tdsqlite3_value_text(argv[0]);
-      zNeedle = tdsqlite3_value_text(argv[1]);
-      isText = 1;
-    }else{
-      pC1 = tdsqlite3_value_dup(argv[0]);
-      zHaystack = tdsqlite3_value_text(pC1);
-      if( zHaystack==0 ) goto endInstrOOM;
-      nHaystack = tdsqlite3_value_bytes(pC1);
-      pC2 = tdsqlite3_value_dup(argv[1]);
-      zNeedle = tdsqlite3_value_text(pC2);
-      if( zNeedle==0 ) goto endInstrOOM;
-      nNeedle = tdsqlite3_value_bytes(pC2);
-      isText = 1;
-    }
-    if( zNeedle==0 || (nHaystack && zHaystack==0) ) goto endInstrOOM;
-    firstChar = zNeedle[0];
-    while( nNeedle<=nHaystack
-       && (zHaystack[0]!=firstChar || memcmp(zHaystack, zNeedle, nNeedle)!=0)
-    ){
-      N++;
-      do{
-        nHaystack--;
-        zHaystack++;
-      }while( isText && (zHaystack[0]&0xc0)==0x80 );
-    }
-    if( nNeedle>nHaystack ) N = 0;
-  }
-  tdsqlite3_result_int(context, N);
-endInstr:
-  tdsqlite3_value_free(pC1);
-  tdsqlite3_value_free(pC2);
-  return;
-endInstrOOM:
-  tdsqlite3_result_error_nomem(context);
-  goto endInstr;
-}
-
-/*
-** Implementation of the printf() function.
-*/
-static void printfFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  PrintfArguments x;
-  StrAccum str;
-  const char *zFormat;
-  int n;
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-
-  if( argc>=1 && (zFormat = (const char*)tdsqlite3_value_text(argv[0]))!=0 ){
-    x.nArg = argc-1;
-    x.nUsed = 0;
-    x.apArg = argv+1;
-    tdsqlite3StrAccumInit(&str, db, 0, 0, db->aLimit[SQLITE_LIMIT_LENGTH]);
-    str.printfFlags = SQLITE_PRINTF_SQLFUNC;
-    tdsqlite3_str_appendf(&str, zFormat, &x);
-    n = str.nChar;
-    tdsqlite3_result_text(context, tdsqlite3StrAccumFinish(&str), n,
-                        SQLITE_DYNAMIC);
-  }
-}
-
-/*
-** Implementation of the substr() function.
-**
-** substr(x,p1,p2)  returns p2 characters of x[] beginning with p1.
-** p1 is 1-indexed.  So substr(x,1,1) returns the first character
-** of x.  If x is text, then we actually count UTF-8 characters.
-** If x is a blob, then we count bytes.
-**
-** If p1 is negative, then we begin abs(p1) from the end of x[].
-**
-** If p2 is negative, return the p2 characters preceding p1.
-*/
-static void substrFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  const unsigned char *z;
-  const unsigned char *z2;
-  int len;
-  int p0type;
-  i64 p1, p2;
-  int negP2 = 0;
-
-  assert( argc==3 || argc==2 );
-  if( tdsqlite3_value_type(argv[1])==SQLITE_NULL
-   || (argc==3 && tdsqlite3_value_type(argv[2])==SQLITE_NULL)
-  ){
-    return;
-  }
-  p0type = tdsqlite3_value_type(argv[0]);
-  p1 = tdsqlite3_value_int(argv[1]);
-  if( p0type==SQLITE_BLOB ){
-    len = tdsqlite3_value_bytes(argv[0]);
-    z = tdsqlite3_value_blob(argv[0]);
-    if( z==0 ) return;
-    assert( len==tdsqlite3_value_bytes(argv[0]) );
-  }else{
-    z = tdsqlite3_value_text(argv[0]);
-    if( z==0 ) return;
-    len = 0;
-    if( p1<0 ){
-      for(z2=z; *z2; len++){
-        SQLITE_SKIP_UTF8(z2);
-      }
-    }
-  }
-#ifdef SQLITE_SUBSTR_COMPATIBILITY
-  /* If SUBSTR_COMPATIBILITY is defined then substr(X,0,N) work the same as
-  ** as substr(X,1,N) - it returns the first N characters of X.  This
-  ** is essentially a back-out of the bug-fix in check-in [5fc125d362df4b8]
-  ** from 2009-02-02 for compatibility of applications that exploited the
-  ** old buggy behavior. */
-  if( p1==0 ) p1 = 1; /* <rdar://problem/6778339> */
-#endif
-  if( argc==3 ){
-    p2 = tdsqlite3_value_int(argv[2]);
-    if( p2<0 ){
-      p2 = -p2;
-      negP2 = 1;
-    }
-  }else{
-    p2 = tdsqlite3_context_db_handle(context)->aLimit[SQLITE_LIMIT_LENGTH];
-  }
-  if( p1<0 ){
-    p1 += len;
-    if( p1<0 ){
-      p2 += p1;
-      if( p2<0 ) p2 = 0;
-      p1 = 0;
-    }
-  }else if( p1>0 ){
-    p1--;
-  }else if( p2>0 ){
-    p2--;
-  }
-  if( negP2 ){
-    p1 -= p2;
-    if( p1<0 ){
-      p2 += p1;
-      p1 = 0;
-    }
-  }
-  assert( p1>=0 && p2>=0 );
-  if( p0type!=SQLITE_BLOB ){
-    while( *z && p1 ){
-      SQLITE_SKIP_UTF8(z);
-      p1--;
-    }
-    for(z2=z; *z2 && p2; p2--){
-      SQLITE_SKIP_UTF8(z2);
-    }
-    tdsqlite3_result_text64(context, (char*)z, z2-z, SQLITE_TRANSIENT,
-                          SQLITE_UTF8);
-  }else{
-    if( p1+p2>len ){
-      p2 = len-p1;
-      if( p2<0 ) p2 = 0;
-    }
-    tdsqlite3_result_blob64(context, (char*)&z[p1], (u64)p2, SQLITE_TRANSIENT);
-  }
-}
-
-/*
-** Implementation of the round() function
-*/
-#ifndef SQLITE_OMIT_FLOATING_POINT
-static void roundFunc(tdsqlite3_context *context, int argc, tdsqlite3_value **argv){
-  int n = 0;
-  double r;
-  char *zBuf;
-  assert( argc==1 || argc==2 );
-  if( argc==2 ){
-    if( SQLITE_NULL==tdsqlite3_value_type(argv[1]) ) return;
-    n = tdsqlite3_value_int(argv[1]);
-    if( n>30 ) n = 30;
-    if( n<0 ) n = 0;
-  }
-  if( tdsqlite3_value_type(argv[0])==SQLITE_NULL ) return;
-  r = tdsqlite3_value_double(argv[0]);
-  /* If Y==0 and X will fit in a 64-bit int,
-  ** handle the rounding directly,
-  ** otherwise use printf.
-  */
-  if( r<-4503599627370496.0 || r>+4503599627370496.0 ){
-    /* The value has no fractional part so there is nothing to round */
-  }else if( n==0 ){  
-    r = (double)((sqlite_int64)(r+(r<0?-0.5:+0.5)));
-  }else{
-    zBuf = tdsqlite3_mprintf("%.*f",n,r);
-    if( zBuf==0 ){
-      tdsqlite3_result_error_nomem(context);
-      return;
-    }
-    tdsqlite3AtoF(zBuf, &r, tdsqlite3Strlen30(zBuf), SQLITE_UTF8);
-    tdsqlite3_free(zBuf);
-  }
-  tdsqlite3_result_double(context, r);
-}
-#endif
-
-/*
-** Allocate nByte bytes of space using tdsqlite3Malloc(). If the
-** allocation fails, call tdsqlite3_result_error_nomem() to notify
-** the database handle that malloc() has failed and return NULL.
-** If nByte is larger than the maximum string or blob length, then
-** raise an SQLITE_TOOBIG exception and return NULL.
-*/
-static void *contextMalloc(tdsqlite3_context *context, i64 nByte){
-  char *z;
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  assert( nByte>0 );
-  testcase( nByte==db->aLimit[SQLITE_LIMIT_LENGTH] );
-  testcase( nByte==db->aLimit[SQLITE_LIMIT_LENGTH]+1 );
-  if( nByte>db->aLimit[SQLITE_LIMIT_LENGTH] ){
-    tdsqlite3_result_error_toobig(context);
-    z = 0;
-  }else{
-    z = tdsqlite3Malloc(nByte);
-    if( !z ){
-      tdsqlite3_result_error_nomem(context);
-    }
-  }
-  return z;
-}
-
-/*
-** Implementation of the upper() and lower() SQL functions.
-*/
-static void upperFunc(tdsqlite3_context *context, int argc, tdsqlite3_value **argv){
-  char *z1;
-  const char *z2;
-  int i, n;
-  UNUSED_PARAMETER(argc);
-  z2 = (char*)tdsqlite3_value_text(argv[0]);
-  n = tdsqlite3_value_bytes(argv[0]);
-  /* Verify that the call to _bytes() does not invalidate the _text() pointer */
-  assert( z2==(char*)tdsqlite3_value_text(argv[0]) );
-  if( z2 ){
-    z1 = contextMalloc(context, ((i64)n)+1);
-    if( z1 ){
-      for(i=0; i<n; i++){
-        z1[i] = (char)tdsqlite3Toupper(z2[i]);
-      }
-      tdsqlite3_result_text(context, z1, n, tdsqlite3_free);
-    }
-  }
-}
-static void lowerFunc(tdsqlite3_context *context, int argc, tdsqlite3_value **argv){
-  char *z1;
-  const char *z2;
-  int i, n;
-  UNUSED_PARAMETER(argc);
-  z2 = (char*)tdsqlite3_value_text(argv[0]);
-  n = tdsqlite3_value_bytes(argv[0]);
-  /* Verify that the call to _bytes() does not invalidate the _text() pointer */
-  assert( z2==(char*)tdsqlite3_value_text(argv[0]) );
-  if( z2 ){
-    z1 = contextMalloc(context, ((i64)n)+1);
-    if( z1 ){
-      for(i=0; i<n; i++){
-        z1[i] = tdsqlite3Tolower(z2[i]);
-      }
-      tdsqlite3_result_text(context, z1, n, tdsqlite3_free);
-    }
-  }
-}
-
-/*
-** Some functions like COALESCE() and IFNULL() and UNLIKELY() are implemented
-** as VDBE code so that unused argument values do not have to be computed.
-** However, we still need some kind of function implementation for this
-** routines in the function table.  The noopFunc macro provides this.
-** noopFunc will never be called so it doesn't matter what the implementation
-** is.  We might as well use the "version()" function as a substitute.
-*/
-#define noopFunc versionFunc   /* Substitute function - never called */
-
-/*
-** Implementation of random().  Return a random integer.  
-*/
-static void randomFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **NotUsed2
-){
-  sqlite_int64 r;
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  tdsqlite3_randomness(sizeof(r), &r);
-  if( r<0 ){
-    /* We need to prevent a random number of 0x8000000000000000 
-    ** (or -9223372036854775808) since when you do abs() of that
-    ** number of you get the same value back again.  To do this
-    ** in a way that is testable, mask the sign bit off of negative
-    ** values, resulting in a positive value.  Then take the 
-    ** 2s complement of that positive value.  The end result can
-    ** therefore be no less than -9223372036854775807.
-    */
-    r = -(r & LARGEST_INT64);
-  }
-  tdsqlite3_result_int64(context, r);
-}
-
-/*
-** Implementation of randomblob(N).  Return a random blob
-** that is N bytes long.
-*/
-static void randomBlob(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  tdsqlite3_int64 n;
-  unsigned char *p;
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  n = tdsqlite3_value_int64(argv[0]);
-  if( n<1 ){
-    n = 1;
-  }
-  p = contextMalloc(context, n);
-  if( p ){
-    tdsqlite3_randomness(n, p);
-    tdsqlite3_result_blob(context, (char*)p, n, tdsqlite3_free);
-  }
-}
-
-/*
-** Implementation of the last_insert_rowid() SQL function.  The return
-** value is the same as the tdsqlite3_last_insert_rowid() API function.
-*/
-static void last_insert_rowid(
-  tdsqlite3_context *context, 
-  int NotUsed, 
-  tdsqlite3_value **NotUsed2
-){
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  /* IMP: R-51513-12026 The last_insert_rowid() SQL function is a
-  ** wrapper around the tdsqlite3_last_insert_rowid() C/C++ interface
-  ** function. */
-  tdsqlite3_result_int64(context, tdsqlite3_last_insert_rowid(db));
-}
-
-/*
-** Implementation of the changes() SQL function.
-**
-** IMP: R-62073-11209 The changes() SQL function is a wrapper
-** around the tdsqlite3_changes() C/C++ function and hence follows the same
-** rules for counting changes.
-*/
-static void changes(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **NotUsed2
-){
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  tdsqlite3_result_int(context, tdsqlite3_changes(db));
-}
-
-/*
-** Implementation of the total_changes() SQL function.  The return value is
-** the same as the tdsqlite3_total_changes() API function.
-*/
-static void total_changes(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **NotUsed2
-){
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  /* IMP: R-52756-41993 This function is a wrapper around the
-  ** tdsqlite3_total_changes() C/C++ interface. */
-  tdsqlite3_result_int(context, tdsqlite3_total_changes(db));
-}
-
-/*
-** A structure defining how to do GLOB-style comparisons.
-*/
-struct compareInfo {
-  u8 matchAll;          /* "*" or "%" */
-  u8 matchOne;          /* "?" or "_" */
-  u8 matchSet;          /* "[" or 0 */
-  u8 noCase;            /* true to ignore case differences */
-};
-
-/*
-** For LIKE and GLOB matching on EBCDIC machines, assume that every
-** character is exactly one byte in size.  Also, provde the Utf8Read()
-** macro for fast reading of the next character in the common case where
-** the next character is ASCII.
-*/
-#if defined(SQLITE_EBCDIC)
-# define tdsqlite3Utf8Read(A)        (*((*A)++))
-# define Utf8Read(A)               (*(A++))
-#else
-# define Utf8Read(A)               (A[0]<0x80?*(A++):tdsqlite3Utf8Read(&A))
-#endif
-
-static const struct compareInfo globInfo = { '*', '?', '[', 0 };
-/* The correct SQL-92 behavior is for the LIKE operator to ignore
-** case.  Thus  'a' LIKE 'A' would be true. */
-static const struct compareInfo likeInfoNorm = { '%', '_',   0, 1 };
-/* If SQLITE_CASE_SENSITIVE_LIKE is defined, then the LIKE operator
-** is case sensitive causing 'a' LIKE 'A' to be false */
-static const struct compareInfo likeInfoAlt = { '%', '_',   0, 0 };
-
-/*
-** Possible error returns from patternMatch()
-*/
-#define SQLITE_MATCH             0
-#define SQLITE_NOMATCH           1
-#define SQLITE_NOWILDCARDMATCH   2
-
-/*
-** Compare two UTF-8 strings for equality where the first string is
-** a GLOB or LIKE expression.  Return values:
-**
-**    SQLITE_MATCH:            Match
-**    SQLITE_NOMATCH:          No match
-**    SQLITE_NOWILDCARDMATCH:  No match in spite of having * or % wildcards.
-**
-** Globbing rules:
-**
-**      '*'       Matches any sequence of zero or more characters.
-**
-**      '?'       Matches exactly one character.
-**
-**     [...]      Matches one character from the enclosed list of
-**                characters.
-**
-**     [^...]     Matches one character not in the enclosed list.
-**
-** With the [...] and [^...] matching, a ']' character can be included
-** in the list by making it the first character after '[' or '^'.  A
-** range of characters can be specified using '-'.  Example:
-** "[a-z]" matches any single lower-case letter.  To match a '-', make
-** it the last character in the list.
-**
-** Like matching rules:
-** 
-**      '%'       Matches any sequence of zero or more characters
-**
-***     '_'       Matches any one character
-**
-**      Ec        Where E is the "esc" character and c is any other
-**                character, including '%', '_', and esc, match exactly c.
-**
-** The comments within this routine usually assume glob matching.
-**
-** This routine is usually quick, but can be N**2 in the worst case.
-*/
-static int patternCompare(
-  const u8 *zPattern,              /* The glob pattern */
-  const u8 *zString,               /* The string to compare against the glob */
-  const struct compareInfo *pInfo, /* Information about how to do the compare */
-  u32 matchOther                   /* The escape char (LIKE) or '[' (GLOB) */
-){
-  u32 c, c2;                       /* Next pattern and input string chars */
-  u32 matchOne = pInfo->matchOne;  /* "?" or "_" */
-  u32 matchAll = pInfo->matchAll;  /* "*" or "%" */
-  u8 noCase = pInfo->noCase;       /* True if uppercase==lowercase */
-  const u8 *zEscaped = 0;          /* One past the last escaped input char */
-  
-  while( (c = Utf8Read(zPattern))!=0 ){
-    if( c==matchAll ){  /* Match "*" */
-      /* Skip over multiple "*" characters in the pattern.  If there
-      ** are also "?" characters, skip those as well, but consume a
-      ** single character of the input string for each "?" skipped */
-      while( (c=Utf8Read(zPattern)) == matchAll || c == matchOne ){
-        if( c==matchOne && tdsqlite3Utf8Read(&zString)==0 ){
-          return SQLITE_NOWILDCARDMATCH;
-        }
-      }
-      if( c==0 ){
-        return SQLITE_MATCH;   /* "*" at the end of the pattern matches */
-      }else if( c==matchOther ){
-        if( pInfo->matchSet==0 ){
-          c = tdsqlite3Utf8Read(&zPattern);
-          if( c==0 ) return SQLITE_NOWILDCARDMATCH;
-        }else{
-          /* "[...]" immediately follows the "*".  We have to do a slow
-          ** recursive search in this case, but it is an unusual case. */
-          assert( matchOther<0x80 );  /* '[' is a single-byte character */
-          while( *zString ){
-            int bMatch = patternCompare(&zPattern[-1],zString,pInfo,matchOther);
-            if( bMatch!=SQLITE_NOMATCH ) return bMatch;
-            SQLITE_SKIP_UTF8(zString);
-          }
-          return SQLITE_NOWILDCARDMATCH;
-        }
-      }
-
-      /* At this point variable c contains the first character of the
-      ** pattern string past the "*".  Search in the input string for the
-      ** first matching character and recursively continue the match from
-      ** that point.
-      **
-      ** For a case-insensitive search, set variable cx to be the same as
-      ** c but in the other case and search the input string for either
-      ** c or cx.
-      */
-      if( c<=0x80 ){
-        char zStop[3];
-        int bMatch;
-        if( noCase ){
-          zStop[0] = tdsqlite3Toupper(c);
-          zStop[1] = tdsqlite3Tolower(c);
-          zStop[2] = 0;
-        }else{
-          zStop[0] = c;
-          zStop[1] = 0;
-        }
-        while(1){
-          zString += strcspn((const char*)zString, zStop);
-          if( zString[0]==0 ) break;
-          zString++;
-          bMatch = patternCompare(zPattern,zString,pInfo,matchOther);
-          if( bMatch!=SQLITE_NOMATCH ) return bMatch;
-        }
-      }else{
-        int bMatch;
-        while( (c2 = Utf8Read(zString))!=0 ){
-          if( c2!=c ) continue;
-          bMatch = patternCompare(zPattern,zString,pInfo,matchOther);
-          if( bMatch!=SQLITE_NOMATCH ) return bMatch;
-        }
-      }
-      return SQLITE_NOWILDCARDMATCH;
-    }
-    if( c==matchOther ){
-      if( pInfo->matchSet==0 ){
-        c = tdsqlite3Utf8Read(&zPattern);
-        if( c==0 ) return SQLITE_NOMATCH;
-        zEscaped = zPattern;
-      }else{
-        u32 prior_c = 0;
-        int seen = 0;
-        int invert = 0;
-        c = tdsqlite3Utf8Read(&zString);
-        if( c==0 ) return SQLITE_NOMATCH;
-        c2 = tdsqlite3Utf8Read(&zPattern);
-        if( c2=='^' ){
-          invert = 1;
-          c2 = tdsqlite3Utf8Read(&zPattern);
-        }
-        if( c2==']' ){
-          if( c==']' ) seen = 1;
-          c2 = tdsqlite3Utf8Read(&zPattern);
-        }
-        while( c2 && c2!=']' ){
-          if( c2=='-' && zPattern[0]!=']' && zPattern[0]!=0 && prior_c>0 ){
-            c2 = tdsqlite3Utf8Read(&zPattern);
-            if( c>=prior_c && c<=c2 ) seen = 1;
-            prior_c = 0;
-          }else{
-            if( c==c2 ){
-              seen = 1;
-            }
-            prior_c = c2;
-          }
-          c2 = tdsqlite3Utf8Read(&zPattern);
-        }
-        if( c2==0 || (seen ^ invert)==0 ){
-          return SQLITE_NOMATCH;
-        }
-        continue;
-      }
-    }
-    c2 = Utf8Read(zString);
-    if( c==c2 ) continue;
-    if( noCase  && tdsqlite3Tolower(c)==tdsqlite3Tolower(c2) && c<0x80 && c2<0x80 ){
-      continue;
-    }
-    if( c==matchOne && zPattern!=zEscaped && c2!=0 ) continue;
-    return SQLITE_NOMATCH;
-  }
-  return *zString==0 ? SQLITE_MATCH : SQLITE_NOMATCH;
-}
-
-/*
-** The tdsqlite3_strglob() interface.  Return 0 on a match (like strcmp()) and
-** non-zero if there is no match.
-*/
-SQLITE_API int tdsqlite3_strglob(const char *zGlobPattern, const char *zString){
-  return patternCompare((u8*)zGlobPattern, (u8*)zString, &globInfo, '[');
-}
-
-/*
-** The tdsqlite3_strlike() interface.  Return 0 on a match and non-zero for
-** a miss - like strcmp().
-*/
-SQLITE_API int tdsqlite3_strlike(const char *zPattern, const char *zStr, unsigned int esc){
-  return patternCompare((u8*)zPattern, (u8*)zStr, &likeInfoNorm, esc);
-}
-
-/*
-** Count the number of times that the LIKE operator (or GLOB which is
-** just a variation of LIKE) gets called.  This is used for testing
-** only.
-*/
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_like_count = 0;
-#endif
-
-
-/*
-** Implementation of the like() SQL function.  This function implements
-** the build-in LIKE operator.  The first argument to the function is the
-** pattern and the second argument is the string.  So, the SQL statements:
-**
-**       A LIKE B
-**
-** is implemented as like(B,A).
-**
-** This same function (with a different compareInfo structure) computes
-** the GLOB operator.
-*/
-static void likeFunc(
-  tdsqlite3_context *context, 
-  int argc, 
-  tdsqlite3_value **argv
-){
-  const unsigned char *zA, *zB;
-  u32 escape;
-  int nPat;
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  struct compareInfo *pInfo = tdsqlite3_user_data(context);
-
-#ifdef SQLITE_LIKE_DOESNT_MATCH_BLOBS
-  if( tdsqlite3_value_type(argv[0])==SQLITE_BLOB
-   || tdsqlite3_value_type(argv[1])==SQLITE_BLOB
-  ){
-#ifdef SQLITE_TEST
-    tdsqlite3_like_count++;
-#endif
-    tdsqlite3_result_int(context, 0);
-    return;
-  }
-#endif
-
-  /* Limit the length of the LIKE or GLOB pattern to avoid problems
-  ** of deep recursion and N*N behavior in patternCompare().
-  */
-  nPat = tdsqlite3_value_bytes(argv[0]);
-  testcase( nPat==db->aLimit[SQLITE_LIMIT_LIKE_PATTERN_LENGTH] );
-  testcase( nPat==db->aLimit[SQLITE_LIMIT_LIKE_PATTERN_LENGTH]+1 );
-  if( nPat > db->aLimit[SQLITE_LIMIT_LIKE_PATTERN_LENGTH] ){
-    tdsqlite3_result_error(context, "LIKE or GLOB pattern too complex", -1);
-    return;
-  }
-  if( argc==3 ){
-    /* The escape character string must consist of a single UTF-8 character.
-    ** Otherwise, return an error.
-    */
-    const unsigned char *zEsc = tdsqlite3_value_text(argv[2]);
-    if( zEsc==0 ) return;
-    if( tdsqlite3Utf8CharLen((char*)zEsc, -1)!=1 ){
-      tdsqlite3_result_error(context, 
-          "ESCAPE expression must be a single character", -1);
-      return;
-    }
-    escape = tdsqlite3Utf8Read(&zEsc);
-  }else{
-    escape = pInfo->matchSet;
-  }
-  zB = tdsqlite3_value_text(argv[0]);
-  zA = tdsqlite3_value_text(argv[1]);
-  if( zA && zB ){
-#ifdef SQLITE_TEST
-    tdsqlite3_like_count++;
-#endif
-    tdsqlite3_result_int(context,
-                      patternCompare(zB, zA, pInfo, escape)==SQLITE_MATCH);
-  }
-}
-
-/*
-** Implementation of the NULLIF(x,y) function.  The result is the first
-** argument if the arguments are different.  The result is NULL if the
-** arguments are equal to each other.
-*/
-static void nullifFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **argv
-){
-  CollSeq *pColl = tdsqlite3GetFuncCollSeq(context);
-  UNUSED_PARAMETER(NotUsed);
-  if( tdsqlite3MemCompare(argv[0], argv[1], pColl)!=0 ){
-    tdsqlite3_result_value(context, argv[0]);
-  }
-}
-
-/*
-** Implementation of the sqlite_version() function.  The result is the version
-** of the SQLite library that is running.
-*/
-static void versionFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **NotUsed2
-){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  /* IMP: R-48699-48617 This function is an SQL wrapper around the
-  ** tdsqlite3_libversion() C-interface. */
-  tdsqlite3_result_text(context, tdsqlite3_libversion(), -1, SQLITE_STATIC);
-}
-
-/*
-** Implementation of the sqlite_source_id() function. The result is a string
-** that identifies the particular version of the source code used to build
-** SQLite.
-*/
-static void sourceidFunc(
-  tdsqlite3_context *context,
-  int NotUsed,
-  tdsqlite3_value **NotUsed2
-){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  /* IMP: R-24470-31136 This function is an SQL wrapper around the
-  ** tdsqlite3_sourceid() C interface. */
-  tdsqlite3_result_text(context, tdsqlite3_sourceid(), -1, SQLITE_STATIC);
-}
-
-/*
-** Implementation of the sqlite_log() function.  This is a wrapper around
-** tdsqlite3_log().  The return value is NULL.  The function exists purely for
-** its side-effects.
-*/
-static void errlogFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  UNUSED_PARAMETER(argc);
-  UNUSED_PARAMETER(context);
-  tdsqlite3_log(tdsqlite3_value_int(argv[0]), "%s", tdsqlite3_value_text(argv[1]));
-}
-
-/*
-** Implementation of the sqlite_compileoption_used() function.
-** The result is an integer that identifies if the compiler option
-** was used to build SQLite.
-*/
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-static void compileoptionusedFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  const char *zOptName;
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  /* IMP: R-39564-36305 The sqlite_compileoption_used() SQL
-  ** function is a wrapper around the tdsqlite3_compileoption_used() C/C++
-  ** function.
-  */
-  if( (zOptName = (const char*)tdsqlite3_value_text(argv[0]))!=0 ){
-    tdsqlite3_result_int(context, tdsqlite3_compileoption_used(zOptName));
-  }
-}
-#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
-
-/*
-** Implementation of the sqlite_compileoption_get() function. 
-** The result is a string that identifies the compiler options 
-** used to build SQLite.
-*/
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-static void compileoptiongetFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  int n;
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  /* IMP: R-04922-24076 The sqlite_compileoption_get() SQL function
-  ** is a wrapper around the tdsqlite3_compileoption_get() C/C++ function.
-  */
-  n = tdsqlite3_value_int(argv[0]);
-  tdsqlite3_result_text(context, tdsqlite3_compileoption_get(n), -1, SQLITE_STATIC);
-}
-#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
-
-/* Array for converting from half-bytes (nybbles) into ASCII hex
-** digits. */
-static const char hexdigits[] = {
-  '0', '1', '2', '3', '4', '5', '6', '7',
-  '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' 
-};
-
-/*
-** Implementation of the QUOTE() function.  This function takes a single
-** argument.  If the argument is numeric, the return value is the same as
-** the argument.  If the argument is NULL, the return value is the string
-** "NULL".  Otherwise, the argument is enclosed in single quotes with
-** single-quote escapes.
-*/
-static void quoteFunc(tdsqlite3_context *context, int argc, tdsqlite3_value **argv){
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  switch( tdsqlite3_value_type(argv[0]) ){
-    case SQLITE_FLOAT: {
-      double r1, r2;
-      char zBuf[50];
-      r1 = tdsqlite3_value_double(argv[0]);
-      tdsqlite3_snprintf(sizeof(zBuf), zBuf, "%!.15g", r1);
-      tdsqlite3AtoF(zBuf, &r2, 20, SQLITE_UTF8);
-      if( r1!=r2 ){
-        tdsqlite3_snprintf(sizeof(zBuf), zBuf, "%!.20e", r1);
-      }
-      tdsqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
-      break;
-    }
-    case SQLITE_INTEGER: {
-      tdsqlite3_result_value(context, argv[0]);
-      break;
-    }
-    case SQLITE_BLOB: {
-      char *zText = 0;
-      char const *zBlob = tdsqlite3_value_blob(argv[0]);
-      int nBlob = tdsqlite3_value_bytes(argv[0]);
-      assert( zBlob==tdsqlite3_value_blob(argv[0]) ); /* No encoding change */
-      zText = (char *)contextMalloc(context, (2*(i64)nBlob)+4); 
-      if( zText ){
-        int i;
-        for(i=0; i<nBlob; i++){
-          zText[(i*2)+2] = hexdigits[(zBlob[i]>>4)&0x0F];
-          zText[(i*2)+3] = hexdigits[(zBlob[i])&0x0F];
-        }
-        zText[(nBlob*2)+2] = '\'';
-        zText[(nBlob*2)+3] = '\0';
-        zText[0] = 'X';
-        zText[1] = '\'';
-        tdsqlite3_result_text(context, zText, -1, SQLITE_TRANSIENT);
-        tdsqlite3_free(zText);
-      }
-      break;
-    }
-    case SQLITE_TEXT: {
-      int i,j;
-      u64 n;
-      const unsigned char *zArg = tdsqlite3_value_text(argv[0]);
-      char *z;
-
-      if( zArg==0 ) return;
-      for(i=0, n=0; zArg[i]; i++){ if( zArg[i]=='\'' ) n++; }
-      z = contextMalloc(context, ((i64)i)+((i64)n)+3);
-      if( z ){
-        z[0] = '\'';
-        for(i=0, j=1; zArg[i]; i++){
-          z[j++] = zArg[i];
-          if( zArg[i]=='\'' ){
-            z[j++] = '\'';
-          }
-        }
-        z[j++] = '\'';
-        z[j] = 0;
-        tdsqlite3_result_text(context, z, j, tdsqlite3_free);
-      }
-      break;
-    }
-    default: {
-      assert( tdsqlite3_value_type(argv[0])==SQLITE_NULL );
-      tdsqlite3_result_text(context, "NULL", 4, SQLITE_STATIC);
-      break;
-    }
-  }
-}
-
-/*
-** The unicode() function.  Return the integer unicode code-point value
-** for the first character of the input string. 
-*/
-static void unicodeFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  const unsigned char *z = tdsqlite3_value_text(argv[0]);
-  (void)argc;
-  if( z && z[0] ) tdsqlite3_result_int(context, tdsqlite3Utf8Read(&z));
-}
-
-/*
-** The char() function takes zero or more arguments, each of which is
-** an integer.  It constructs a string where each character of the string
-** is the unicode character for the corresponding integer argument.
-*/
-static void charFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  unsigned char *z, *zOut;
-  int i;
-  zOut = z = tdsqlite3_malloc64( argc*4+1 );
-  if( z==0 ){
-    tdsqlite3_result_error_nomem(context);
-    return;
-  }
-  for(i=0; i<argc; i++){
-    tdsqlite3_int64 x;
-    unsigned c;
-    x = tdsqlite3_value_int64(argv[i]);
-    if( x<0 || x>0x10ffff ) x = 0xfffd;
-    c = (unsigned)(x & 0x1fffff);
-    if( c<0x00080 ){
-      *zOut++ = (u8)(c&0xFF);
-    }else if( c<0x00800 ){
-      *zOut++ = 0xC0 + (u8)((c>>6)&0x1F);
-      *zOut++ = 0x80 + (u8)(c & 0x3F);
-    }else if( c<0x10000 ){
-      *zOut++ = 0xE0 + (u8)((c>>12)&0x0F);
-      *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);
-      *zOut++ = 0x80 + (u8)(c & 0x3F);
-    }else{
-      *zOut++ = 0xF0 + (u8)((c>>18) & 0x07);
-      *zOut++ = 0x80 + (u8)((c>>12) & 0x3F);
-      *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);
-      *zOut++ = 0x80 + (u8)(c & 0x3F);
-    }                                                    \
-  }
-  tdsqlite3_result_text64(context, (char*)z, zOut-z, tdsqlite3_free, SQLITE_UTF8);
-}
-
-/*
-** The hex() function.  Interpret the argument as a blob.  Return
-** a hexadecimal rendering as text.
-*/
-static void hexFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  int i, n;
-  const unsigned char *pBlob;
-  char *zHex, *z;
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  pBlob = tdsqlite3_value_blob(argv[0]);
-  n = tdsqlite3_value_bytes(argv[0]);
-  assert( pBlob==tdsqlite3_value_blob(argv[0]) );  /* No encoding change */
-  z = zHex = contextMalloc(context, ((i64)n)*2 + 1);
-  if( zHex ){
-    for(i=0; i<n; i++, pBlob++){
-      unsigned char c = *pBlob;
-      *(z++) = hexdigits[(c>>4)&0xf];
-      *(z++) = hexdigits[c&0xf];
-    }
-    *z = 0;
-    tdsqlite3_result_text(context, zHex, n*2, tdsqlite3_free);
-  }
-}
-
-/*
-** The zeroblob(N) function returns a zero-filled blob of size N bytes.
-*/
-static void zeroblobFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  i64 n;
-  int rc;
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  n = tdsqlite3_value_int64(argv[0]);
-  if( n<0 ) n = 0;
-  rc = tdsqlite3_result_zeroblob64(context, n); /* IMP: R-00293-64994 */
-  if( rc ){
-    tdsqlite3_result_error_code(context, rc);
-  }
-}
-
-/*
-** The replace() function.  Three arguments are all strings: call
-** them A, B, and C. The result is also a string which is derived
-** from A by replacing every occurrence of B with C.  The match
-** must be exact.  Collating sequences are not used.
-*/
-static void replaceFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  const unsigned char *zStr;        /* The input string A */
-  const unsigned char *zPattern;    /* The pattern string B */
-  const unsigned char *zRep;        /* The replacement string C */
-  unsigned char *zOut;              /* The output */
-  int nStr;                /* Size of zStr */
-  int nPattern;            /* Size of zPattern */
-  int nRep;                /* Size of zRep */
-  i64 nOut;                /* Maximum size of zOut */
-  int loopLimit;           /* Last zStr[] that might match zPattern[] */
-  int i, j;                /* Loop counters */
-  unsigned cntExpand;      /* Number zOut expansions */
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-
-  assert( argc==3 );
-  UNUSED_PARAMETER(argc);
-  zStr = tdsqlite3_value_text(argv[0]);
-  if( zStr==0 ) return;
-  nStr = tdsqlite3_value_bytes(argv[0]);
-  assert( zStr==tdsqlite3_value_text(argv[0]) );  /* No encoding change */
-  zPattern = tdsqlite3_value_text(argv[1]);
-  if( zPattern==0 ){
-    assert( tdsqlite3_value_type(argv[1])==SQLITE_NULL
-            || tdsqlite3_context_db_handle(context)->mallocFailed );
-    return;
-  }
-  if( zPattern[0]==0 ){
-    assert( tdsqlite3_value_type(argv[1])!=SQLITE_NULL );
-    tdsqlite3_result_value(context, argv[0]);
-    return;
-  }
-  nPattern = tdsqlite3_value_bytes(argv[1]);
-  assert( zPattern==tdsqlite3_value_text(argv[1]) );  /* No encoding change */
-  zRep = tdsqlite3_value_text(argv[2]);
-  if( zRep==0 ) return;
-  nRep = tdsqlite3_value_bytes(argv[2]);
-  assert( zRep==tdsqlite3_value_text(argv[2]) );
-  nOut = nStr + 1;
-  assert( nOut<SQLITE_MAX_LENGTH );
-  zOut = contextMalloc(context, (i64)nOut);
-  if( zOut==0 ){
-    return;
-  }
-  loopLimit = nStr - nPattern;  
-  cntExpand = 0;
-  for(i=j=0; i<=loopLimit; i++){
-    if( zStr[i]!=zPattern[0] || memcmp(&zStr[i], zPattern, nPattern) ){
-      zOut[j++] = zStr[i];
-    }else{
-      if( nRep>nPattern ){
-        nOut += nRep - nPattern;
-        testcase( nOut-1==db->aLimit[SQLITE_LIMIT_LENGTH] );
-        testcase( nOut-2==db->aLimit[SQLITE_LIMIT_LENGTH] );
-        if( nOut-1>db->aLimit[SQLITE_LIMIT_LENGTH] ){
-          tdsqlite3_result_error_toobig(context);
-          tdsqlite3_free(zOut);
-          return;
-        }
-        cntExpand++;
-        if( (cntExpand&(cntExpand-1))==0 ){
-          /* Grow the size of the output buffer only on substitutions
-          ** whose index is a power of two: 1, 2, 4, 8, 16, 32, ... */
-          u8 *zOld;
-          zOld = zOut;
-          zOut = tdsqlite3_realloc64(zOut, (int)nOut + (nOut - nStr - 1));
-          if( zOut==0 ){
-            tdsqlite3_result_error_nomem(context);
-            tdsqlite3_free(zOld);
-            return;
-          }
-        }
-      }
-      memcpy(&zOut[j], zRep, nRep);
-      j += nRep;
-      i += nPattern-1;
-    }
-  }
-  assert( j+nStr-i+1<=nOut );
-  memcpy(&zOut[j], &zStr[i], nStr-i);
-  j += nStr - i;
-  assert( j<=nOut );
-  zOut[j] = 0;
-  tdsqlite3_result_text(context, (char*)zOut, j, tdsqlite3_free);
-}
-
-/*
-** Implementation of the TRIM(), LTRIM(), and RTRIM() functions.
-** The userdata is 0x1 for left trim, 0x2 for right trim, 0x3 for both.
-*/
-static void trimFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  const unsigned char *zIn;         /* Input string */
-  const unsigned char *zCharSet;    /* Set of characters to trim */
-  int nIn;                          /* Number of bytes in input */
-  int flags;                        /* 1: trimleft  2: trimright  3: trim */
-  int i;                            /* Loop counter */
-  unsigned char *aLen = 0;          /* Length of each character in zCharSet */
-  unsigned char **azChar = 0;       /* Individual characters in zCharSet */
-  int nChar;                        /* Number of characters in zCharSet */
-
-  if( tdsqlite3_value_type(argv[0])==SQLITE_NULL ){
-    return;
-  }
-  zIn = tdsqlite3_value_text(argv[0]);
-  if( zIn==0 ) return;
-  nIn = tdsqlite3_value_bytes(argv[0]);
-  assert( zIn==tdsqlite3_value_text(argv[0]) );
-  if( argc==1 ){
-    static const unsigned char lenOne[] = { 1 };
-    static unsigned char * const azOne[] = { (u8*)" " };
-    nChar = 1;
-    aLen = (u8*)lenOne;
-    azChar = (unsigned char **)azOne;
-    zCharSet = 0;
-  }else if( (zCharSet = tdsqlite3_value_text(argv[1]))==0 ){
-    return;
-  }else{
-    const unsigned char *z;
-    for(z=zCharSet, nChar=0; *z; nChar++){
-      SQLITE_SKIP_UTF8(z);
-    }
-    if( nChar>0 ){
-      azChar = contextMalloc(context, ((i64)nChar)*(sizeof(char*)+1));
-      if( azChar==0 ){
-        return;
-      }
-      aLen = (unsigned char*)&azChar[nChar];
-      for(z=zCharSet, nChar=0; *z; nChar++){
-        azChar[nChar] = (unsigned char *)z;
-        SQLITE_SKIP_UTF8(z);
-        aLen[nChar] = (u8)(z - azChar[nChar]);
-      }
-    }
-  }
-  if( nChar>0 ){
-    flags = SQLITE_PTR_TO_INT(tdsqlite3_user_data(context));
-    if( flags & 1 ){
-      while( nIn>0 ){
-        int len = 0;
-        for(i=0; i<nChar; i++){
-          len = aLen[i];
-          if( len<=nIn && memcmp(zIn, azChar[i], len)==0 ) break;
-        }
-        if( i>=nChar ) break;
-        zIn += len;
-        nIn -= len;
-      }
-    }
-    if( flags & 2 ){
-      while( nIn>0 ){
-        int len = 0;
-        for(i=0; i<nChar; i++){
-          len = aLen[i];
-          if( len<=nIn && memcmp(&zIn[nIn-len],azChar[i],len)==0 ) break;
-        }
-        if( i>=nChar ) break;
-        nIn -= len;
-      }
-    }
-    if( zCharSet ){
-      tdsqlite3_free(azChar);
-    }
-  }
-  tdsqlite3_result_text(context, (char*)zIn, nIn, SQLITE_TRANSIENT);
-}
-
-
-#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
-/*
-** The "unknown" function is automatically substituted in place of
-** any unrecognized function name when doing an EXPLAIN or EXPLAIN QUERY PLAN
-** when the SQLITE_ENABLE_UNKNOWN_FUNCTION compile-time option is used.
-** When the "tdsqlite3" command-line shell is built using this functionality,
-** that allows an EXPLAIN or EXPLAIN QUERY PLAN for complex queries
-** involving application-defined functions to be examined in a generic
-** tdsqlite3 shell.
-*/
-static void unknownFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  /* no-op */
-}
-#endif /*SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION*/
-
-
-/* IMP: R-25361-16150 This function is omitted from SQLite by default. It
-** is only available if the SQLITE_SOUNDEX compile-time option is used
-** when SQLite is built.
-*/
-#ifdef SQLITE_SOUNDEX
-/*
-** Compute the soundex encoding of a word.
-**
-** IMP: R-59782-00072 The soundex(X) function returns a string that is the
-** soundex encoding of the string X. 
-*/
-static void soundexFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  char zResult[8];
-  const u8 *zIn;
-  int i, j;
-  static const unsigned char iCode[] = {
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0,
-    1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0,
-    0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0,
-    1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0,
-  };
-  assert( argc==1 );
-  zIn = (u8*)tdsqlite3_value_text(argv[0]);
-  if( zIn==0 ) zIn = (u8*)"";
-  for(i=0; zIn[i] && !tdsqlite3Isalpha(zIn[i]); i++){}
-  if( zIn[i] ){
-    u8 prevcode = iCode[zIn[i]&0x7f];
-    zResult[0] = tdsqlite3Toupper(zIn[i]);
-    for(j=1; j<4 && zIn[i]; i++){
-      int code = iCode[zIn[i]&0x7f];
-      if( code>0 ){
-        if( code!=prevcode ){
-          prevcode = code;
-          zResult[j++] = code + '0';
-        }
-      }else{
-        prevcode = 0;
-      }
-    }
-    while( j<4 ){
-      zResult[j++] = '0';
-    }
-    zResult[j] = 0;
-    tdsqlite3_result_text(context, zResult, 4, SQLITE_TRANSIENT);
-  }else{
-    /* IMP: R-64894-50321 The string "?000" is returned if the argument
-    ** is NULL or contains no ASCII alphabetic characters. */
-    tdsqlite3_result_text(context, "?000", 4, SQLITE_STATIC);
-  }
-}
-#endif /* SQLITE_SOUNDEX */
-
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-/*
-** A function that loads a shared-library extension then returns NULL.
-*/
-static void loadExt(tdsqlite3_context *context, int argc, tdsqlite3_value **argv){
-  const char *zFile = (const char *)tdsqlite3_value_text(argv[0]);
-  const char *zProc;
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  char *zErrMsg = 0;
-
-  /* Disallow the load_extension() SQL function unless the SQLITE_LoadExtFunc
-  ** flag is set.  See the tdsqlite3_enable_load_extension() API.
-  */
-  if( (db->flags & SQLITE_LoadExtFunc)==0 ){
-    tdsqlite3_result_error(context, "not authorized", -1);
-    return;
-  }
-
-  if( argc==2 ){
-    zProc = (const char *)tdsqlite3_value_text(argv[1]);
-  }else{
-    zProc = 0;
-  }
-  if( zFile && tdsqlite3_load_extension(db, zFile, zProc, &zErrMsg) ){
-    tdsqlite3_result_error(context, zErrMsg, -1);
-    tdsqlite3_free(zErrMsg);
-  }
-}
-#endif
-
-
-/*
-** An instance of the following structure holds the context of a
-** sum() or avg() aggregate computation.
-*/
-typedef struct SumCtx SumCtx;
-struct SumCtx {
-  double rSum;      /* Floating point sum */
-  i64 iSum;         /* Integer sum */   
-  i64 cnt;          /* Number of elements summed */
-  u8 overflow;      /* True if integer overflow seen */
-  u8 approx;        /* True if non-integer value was input to the sum */
-};
-
-/*
-** Routines used to compute the sum, average, and total.
-**
-** The SUM() function follows the (broken) SQL standard which means
-** that it returns NULL if it sums over no inputs.  TOTAL returns
-** 0.0 in that case.  In addition, TOTAL always returns a float where
-** SUM might return an integer if it never encounters a floating point
-** value.  TOTAL never fails, but SUM might through an exception if
-** it overflows an integer.
-*/
-static void sumStep(tdsqlite3_context *context, int argc, tdsqlite3_value **argv){
-  SumCtx *p;
-  int type;
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  p = tdsqlite3_aggregate_context(context, sizeof(*p));
-  type = tdsqlite3_value_numeric_type(argv[0]);
-  if( p && type!=SQLITE_NULL ){
-    p->cnt++;
-    if( type==SQLITE_INTEGER ){
-      i64 v = tdsqlite3_value_int64(argv[0]);
-      p->rSum += v;
-      if( (p->approx|p->overflow)==0 && tdsqlite3AddInt64(&p->iSum, v) ){
-        p->approx = p->overflow = 1;
-      }
-    }else{
-      p->rSum += tdsqlite3_value_double(argv[0]);
-      p->approx = 1;
-    }
-  }
-}
-#ifndef SQLITE_OMIT_WINDOWFUNC
-static void sumInverse(tdsqlite3_context *context, int argc, tdsqlite3_value**argv){
-  SumCtx *p;
-  int type;
-  assert( argc==1 );
-  UNUSED_PARAMETER(argc);
-  p = tdsqlite3_aggregate_context(context, sizeof(*p));
-  type = tdsqlite3_value_numeric_type(argv[0]);
-  /* p is always non-NULL because sumStep() will have been called first
-  ** to initialize it */
-  if( ALWAYS(p) && type!=SQLITE_NULL ){
-    assert( p->cnt>0 );
-    p->cnt--;
-    assert( type==SQLITE_INTEGER || p->approx );
-    if( type==SQLITE_INTEGER && p->approx==0 ){
-      i64 v = tdsqlite3_value_int64(argv[0]);
-      p->rSum -= v;
-      p->iSum -= v;
-    }else{
-      p->rSum -= tdsqlite3_value_double(argv[0]);
-    }
-  }
-}
-#else
-# define sumInverse 0
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-static void sumFinalize(tdsqlite3_context *context){
-  SumCtx *p;
-  p = tdsqlite3_aggregate_context(context, 0);
-  if( p && p->cnt>0 ){
-    if( p->overflow ){
-      tdsqlite3_result_error(context,"integer overflow",-1);
-    }else if( p->approx ){
-      tdsqlite3_result_double(context, p->rSum);
-    }else{
-      tdsqlite3_result_int64(context, p->iSum);
-    }
-  }
-}
-static void avgFinalize(tdsqlite3_context *context){
-  SumCtx *p;
-  p = tdsqlite3_aggregate_context(context, 0);
-  if( p && p->cnt>0 ){
-    tdsqlite3_result_double(context, p->rSum/(double)p->cnt);
-  }
-}
-static void totalFinalize(tdsqlite3_context *context){
-  SumCtx *p;
-  p = tdsqlite3_aggregate_context(context, 0);
-  /* (double)0 In case of SQLITE_OMIT_FLOATING_POINT... */
-  tdsqlite3_result_double(context, p ? p->rSum : (double)0);
-}
-
-/*
-** The following structure keeps track of state information for the
-** count() aggregate function.
-*/
-typedef struct CountCtx CountCtx;
-struct CountCtx {
-  i64 n;
-#ifdef SQLITE_DEBUG
-  int bInverse;                   /* True if xInverse() ever called */
-#endif
-};
-
-/*
-** Routines to implement the count() aggregate function.
-*/
-static void countStep(tdsqlite3_context *context, int argc, tdsqlite3_value **argv){
-  CountCtx *p;
-  p = tdsqlite3_aggregate_context(context, sizeof(*p));
-  if( (argc==0 || SQLITE_NULL!=tdsqlite3_value_type(argv[0])) && p ){
-    p->n++;
-  }
-
-#ifndef SQLITE_OMIT_DEPRECATED
-  /* The tdsqlite3_aggregate_count() function is deprecated.  But just to make
-  ** sure it still operates correctly, verify that its count agrees with our 
-  ** internal count when using count(*) and when the total count can be
-  ** expressed as a 32-bit integer. */
-  assert( argc==1 || p==0 || p->n>0x7fffffff || p->bInverse
-          || p->n==tdsqlite3_aggregate_count(context) );
-#endif
-}   
-static void countFinalize(tdsqlite3_context *context){
-  CountCtx *p;
-  p = tdsqlite3_aggregate_context(context, 0);
-  tdsqlite3_result_int64(context, p ? p->n : 0);
-}
-#ifndef SQLITE_OMIT_WINDOWFUNC
-static void countInverse(tdsqlite3_context *ctx, int argc, tdsqlite3_value **argv){
-  CountCtx *p;
-  p = tdsqlite3_aggregate_context(ctx, sizeof(*p));
-  /* p is always non-NULL since countStep() will have been called first */
-  if( (argc==0 || SQLITE_NULL!=tdsqlite3_value_type(argv[0])) && ALWAYS(p) ){
-    p->n--;
-#ifdef SQLITE_DEBUG
-    p->bInverse = 1;
-#endif
-  }
-}   
-#else
-# define countInverse 0
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-/*
-** Routines to implement min() and max() aggregate functions.
-*/
-static void minmaxStep(
-  tdsqlite3_context *context, 
-  int NotUsed, 
-  tdsqlite3_value **argv
-){
-  Mem *pArg  = (Mem *)argv[0];
-  Mem *pBest;
-  UNUSED_PARAMETER(NotUsed);
-
-  pBest = (Mem *)tdsqlite3_aggregate_context(context, sizeof(*pBest));
-  if( !pBest ) return;
-
-  if( tdsqlite3_value_type(pArg)==SQLITE_NULL ){
-    if( pBest->flags ) tdsqlite3SkipAccumulatorLoad(context);
-  }else if( pBest->flags ){
-    int max;
-    int cmp;
-    CollSeq *pColl = tdsqlite3GetFuncCollSeq(context);
-    /* This step function is used for both the min() and max() aggregates,
-    ** the only difference between the two being that the sense of the
-    ** comparison is inverted. For the max() aggregate, the
-    ** tdsqlite3_user_data() function returns (void *)-1. For min() it
-    ** returns (void *)db, where db is the tdsqlite3* database pointer.
-    ** Therefore the next statement sets variable 'max' to 1 for the max()
-    ** aggregate, or 0 for min().
-    */
-    max = tdsqlite3_user_data(context)!=0;
-    cmp = tdsqlite3MemCompare(pBest, pArg, pColl);
-    if( (max && cmp<0) || (!max && cmp>0) ){
-      tdsqlite3VdbeMemCopy(pBest, pArg);
-    }else{
-      tdsqlite3SkipAccumulatorLoad(context);
-    }
-  }else{
-    pBest->db = tdsqlite3_context_db_handle(context);
-    tdsqlite3VdbeMemCopy(pBest, pArg);
-  }
-}
-static void minMaxValueFinalize(tdsqlite3_context *context, int bValue){
-  tdsqlite3_value *pRes;
-  pRes = (tdsqlite3_value *)tdsqlite3_aggregate_context(context, 0);
-  if( pRes ){
-    if( pRes->flags ){
-      tdsqlite3_result_value(context, pRes);
-    }
-    if( bValue==0 ) tdsqlite3VdbeMemRelease(pRes);
-  }
-}
-#ifndef SQLITE_OMIT_WINDOWFUNC
-static void minMaxValue(tdsqlite3_context *context){
-  minMaxValueFinalize(context, 1);
-}
-#else
-# define minMaxValue 0
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-static void minMaxFinalize(tdsqlite3_context *context){
-  minMaxValueFinalize(context, 0);
-}
-
-/*
-** group_concat(EXPR, ?SEPARATOR?)
-*/
-static void groupConcatStep(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  const char *zVal;
-  StrAccum *pAccum;
-  const char *zSep;
-  int nVal, nSep;
-  assert( argc==1 || argc==2 );
-  if( tdsqlite3_value_type(argv[0])==SQLITE_NULL ) return;
-  pAccum = (StrAccum*)tdsqlite3_aggregate_context(context, sizeof(*pAccum));
-
-  if( pAccum ){
-    tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-    int firstTerm = pAccum->mxAlloc==0;
-    pAccum->mxAlloc = db->aLimit[SQLITE_LIMIT_LENGTH];
-    if( !firstTerm ){
-      if( argc==2 ){
-        zSep = (char*)tdsqlite3_value_text(argv[1]);
-        nSep = tdsqlite3_value_bytes(argv[1]);
-      }else{
-        zSep = ",";
-        nSep = 1;
-      }
-      if( zSep ) tdsqlite3_str_append(pAccum, zSep, nSep);
-    }
-    zVal = (char*)tdsqlite3_value_text(argv[0]);
-    nVal = tdsqlite3_value_bytes(argv[0]);
-    if( zVal ) tdsqlite3_str_append(pAccum, zVal, nVal);
-  }
-}
-#ifndef SQLITE_OMIT_WINDOWFUNC
-static void groupConcatInverse(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  int n;
-  StrAccum *pAccum;
-  assert( argc==1 || argc==2 );
-  if( tdsqlite3_value_type(argv[0])==SQLITE_NULL ) return;
-  pAccum = (StrAccum*)tdsqlite3_aggregate_context(context, sizeof(*pAccum));
-  /* pAccum is always non-NULL since groupConcatStep() will have always
-  ** run frist to initialize it */
-  if( ALWAYS(pAccum) ){
-    n = tdsqlite3_value_bytes(argv[0]);
-    if( argc==2 ){
-      n += tdsqlite3_value_bytes(argv[1]);
-    }else{
-      n++;
-    }
-    if( n>=(int)pAccum->nChar ){
-      pAccum->nChar = 0;
-    }else{
-      pAccum->nChar -= n;
-      memmove(pAccum->zText, &pAccum->zText[n], pAccum->nChar);
-    }
-    if( pAccum->nChar==0 ) pAccum->mxAlloc = 0;
-  }
-}
-#else
-# define groupConcatInverse 0
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-static void groupConcatFinalize(tdsqlite3_context *context){
-  StrAccum *pAccum;
-  pAccum = tdsqlite3_aggregate_context(context, 0);
-  if( pAccum ){
-    if( pAccum->accError==SQLITE_TOOBIG ){
-      tdsqlite3_result_error_toobig(context);
-    }else if( pAccum->accError==SQLITE_NOMEM ){
-      tdsqlite3_result_error_nomem(context);
-    }else{    
-      tdsqlite3_result_text(context, tdsqlite3StrAccumFinish(pAccum), -1, 
-                          tdsqlite3_free);
-    }
-  }
-}
-#ifndef SQLITE_OMIT_WINDOWFUNC
-static void groupConcatValue(tdsqlite3_context *context){
-  tdsqlite3_str *pAccum;
-  pAccum = (tdsqlite3_str*)tdsqlite3_aggregate_context(context, 0);
-  if( pAccum ){
-    if( pAccum->accError==SQLITE_TOOBIG ){
-      tdsqlite3_result_error_toobig(context);
-    }else if( pAccum->accError==SQLITE_NOMEM ){
-      tdsqlite3_result_error_nomem(context);
-    }else{    
-      const char *zText = tdsqlite3_str_value(pAccum);
-      tdsqlite3_result_text(context, zText, -1, SQLITE_TRANSIENT);
-    }
-  }
-}
-#else
-# define groupConcatValue 0
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-/*
-** This routine does per-connection function registration.  Most
-** of the built-in functions above are part of the global function set.
-** This routine only deals with those that are not global.
-*/
-SQLITE_PRIVATE void tdsqlite3RegisterPerConnectionBuiltinFunctions(tdsqlite3 *db){
-  int rc = tdsqlite3_overload_function(db, "MATCH", 2);
-  assert( rc==SQLITE_NOMEM || rc==SQLITE_OK );
-  if( rc==SQLITE_NOMEM ){
-    tdsqlite3OomFault(db);
-  }
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-#ifndef OMIT_EXPORT
-  {
-    tdsqlite3CreateFunc(db, "sqlcipher_export", -1, SQLITE_TEXT, 0, sqlcipher_exportFunc, 0, 0, 0, 0, 0);
-  }
-#endif
-#ifdef SQLCIPHER_EXT
-#include "sqlcipher_funcs_init.h"
-#endif
-#endif
-/* END SQLCIPHER */
-}
-
-/*
-** Re-register the built-in LIKE functions.  The caseSensitive
-** parameter determines whether or not the LIKE operator is case
-** sensitive.
-*/
-SQLITE_PRIVATE void tdsqlite3RegisterLikeFunctions(tdsqlite3 *db, int caseSensitive){
-  struct compareInfo *pInfo;
-  int flags;
-  if( caseSensitive ){
-    pInfo = (struct compareInfo*)&likeInfoAlt;
-    flags = SQLITE_FUNC_LIKE | SQLITE_FUNC_CASE;
-  }else{
-    pInfo = (struct compareInfo*)&likeInfoNorm;
-    flags = SQLITE_FUNC_LIKE;
-  }
-  tdsqlite3CreateFunc(db, "like", 2, SQLITE_UTF8, pInfo, likeFunc, 0, 0, 0, 0, 0);
-  tdsqlite3CreateFunc(db, "like", 3, SQLITE_UTF8, pInfo, likeFunc, 0, 0, 0, 0, 0);
-  tdsqlite3FindFunction(db, "like", 2, SQLITE_UTF8, 0)->funcFlags |= flags;
-  tdsqlite3FindFunction(db, "like", 3, SQLITE_UTF8, 0)->funcFlags |= flags;
-}
-
-/*
-** pExpr points to an expression which implements a function.  If
-** it is appropriate to apply the LIKE optimization to that function
-** then set aWc[0] through aWc[2] to the wildcard characters and the
-** escape character and then return TRUE.  If the function is not a 
-** LIKE-style function then return FALSE.
-**
-** The expression "a LIKE b ESCAPE c" is only considered a valid LIKE
-** operator if c is a string literal that is exactly one byte in length.
-** That one byte is stored in aWc[3].  aWc[3] is set to zero if there is
-** no ESCAPE clause.
-**
-** *pIsNocase is set to true if uppercase and lowercase are equivalent for
-** the function (default for LIKE).  If the function makes the distinction
-** between uppercase and lowercase (as does GLOB) then *pIsNocase is set to
-** false.
-*/
-SQLITE_PRIVATE int tdsqlite3IsLikeFunction(tdsqlite3 *db, Expr *pExpr, int *pIsNocase, char *aWc){
-  FuncDef *pDef;
-  int nExpr;
-  if( pExpr->op!=TK_FUNCTION || !pExpr->x.pList ){
-    return 0;
-  }
-  assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-  nExpr = pExpr->x.pList->nExpr;
-  pDef = tdsqlite3FindFunction(db, pExpr->u.zToken, nExpr, SQLITE_UTF8, 0);
-  if( NEVER(pDef==0) || (pDef->funcFlags & SQLITE_FUNC_LIKE)==0 ){
-    return 0;
-  }
-  if( nExpr<3 ){
-    aWc[3] = 0;
-  }else{
-    Expr *pEscape = pExpr->x.pList->a[2].pExpr;
-    char *zEscape;
-    if( pEscape->op!=TK_STRING ) return 0;
-    zEscape = pEscape->u.zToken;
-    if( zEscape[0]==0 || zEscape[1]!=0 ) return 0;
-    aWc[3] = zEscape[0];
-  }
-
-  /* The memcpy() statement assumes that the wildcard characters are
-  ** the first three statements in the compareInfo structure.  The
-  ** asserts() that follow verify that assumption
-  */
-  memcpy(aWc, pDef->pUserData, 3);
-  assert( (char*)&likeInfoAlt == (char*)&likeInfoAlt.matchAll );
-  assert( &((char*)&likeInfoAlt)[1] == (char*)&likeInfoAlt.matchOne );
-  assert( &((char*)&likeInfoAlt)[2] == (char*)&likeInfoAlt.matchSet );
-  *pIsNocase = (pDef->funcFlags & SQLITE_FUNC_CASE)==0;
-  return 1;
-}
-
-/*
-** All of the FuncDef structures in the aBuiltinFunc[] array above
-** to the global function hash table.  This occurs at start-time (as
-** a consequence of calling tdsqlite3_initialize()).
-**
-** After this routine runs
-*/
-SQLITE_PRIVATE void tdsqlite3RegisterBuiltinFunctions(void){
-  /*
-  ** The following array holds FuncDef structures for all of the functions
-  ** defined in this file.
-  **
-  ** The array cannot be constant since changes are made to the
-  ** FuncDef.pHash elements at start-time.  The elements of this array
-  ** are read-only after initialization is complete.
-  **
-  ** For peak efficiency, put the most frequently used function last.
-  */
-  static FuncDef aBuiltinFunc[] = {
-/***** Functions only available with SQLITE_TESTCTRL_INTERNAL_FUNCTIONS *****/
-    TEST_FUNC(implies_nonnull_row, 2, INLINEFUNC_implies_nonnull_row, 0),
-    TEST_FUNC(expr_compare,        2, INLINEFUNC_expr_compare,        0),
-    TEST_FUNC(expr_implies_expr,   2, INLINEFUNC_expr_implies_expr,   0),
-#ifdef SQLITE_DEBUG
-    TEST_FUNC(affinity,          1, INLINEFUNC_affinity, 0),
-#endif
-/***** Regular functions *****/
-#ifdef SQLITE_SOUNDEX
-    FUNCTION(soundex,            1, 0, 0, soundexFunc      ),
-#endif
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-    SFUNCTION(load_extension,    1, 0, 0, loadExt          ),
-    SFUNCTION(load_extension,    2, 0, 0, loadExt          ),
-#endif
-#if SQLITE_USER_AUTHENTICATION
-    FUNCTION(sqlite_crypt,       2, 0, 0, tdsqlite3CryptFunc ),
-#endif
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-    DFUNCTION(sqlite_compileoption_used,1, 0, 0, compileoptionusedFunc  ),
-    DFUNCTION(sqlite_compileoption_get, 1, 0, 0, compileoptiongetFunc  ),
-#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
-    INLINE_FUNC(unlikely,        1, INLINEFUNC_unlikely, SQLITE_FUNC_UNLIKELY),
-    INLINE_FUNC(likelihood,      2, INLINEFUNC_unlikely, SQLITE_FUNC_UNLIKELY),
-    INLINE_FUNC(likely,          1, INLINEFUNC_unlikely, SQLITE_FUNC_UNLIKELY),
-#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC
-    FUNCTION2(sqlite_offset,     1, 0, 0, noopFunc,  SQLITE_FUNC_OFFSET|
-                                                     SQLITE_FUNC_TYPEOF),
-#endif
-    FUNCTION(ltrim,              1, 1, 0, trimFunc         ),
-    FUNCTION(ltrim,              2, 1, 0, trimFunc         ),
-    FUNCTION(rtrim,              1, 2, 0, trimFunc         ),
-    FUNCTION(rtrim,              2, 2, 0, trimFunc         ),
-    FUNCTION(trim,               1, 3, 0, trimFunc         ),
-    FUNCTION(trim,               2, 3, 0, trimFunc         ),
-    FUNCTION(min,               -1, 0, 1, minmaxFunc       ),
-    FUNCTION(min,                0, 0, 1, 0                ),
-    WAGGREGATE(min, 1, 0, 1, minmaxStep, minMaxFinalize, minMaxValue, 0,
-                                          SQLITE_FUNC_MINMAX ),
-    FUNCTION(max,               -1, 1, 1, minmaxFunc       ),
-    FUNCTION(max,                0, 1, 1, 0                ),
-    WAGGREGATE(max, 1, 1, 1, minmaxStep, minMaxFinalize, minMaxValue, 0,
-                                          SQLITE_FUNC_MINMAX ),
-    FUNCTION2(typeof,            1, 0, 0, typeofFunc,  SQLITE_FUNC_TYPEOF),
-    FUNCTION2(length,            1, 0, 0, lengthFunc,  SQLITE_FUNC_LENGTH),
-    FUNCTION(instr,              2, 0, 0, instrFunc        ),
-    FUNCTION(printf,            -1, 0, 0, printfFunc       ),
-    FUNCTION(unicode,            1, 0, 0, unicodeFunc      ),
-    FUNCTION(char,              -1, 0, 0, charFunc         ),
-    FUNCTION(abs,                1, 0, 0, absFunc          ),
-#ifndef SQLITE_OMIT_FLOATING_POINT
-    FUNCTION(round,              1, 0, 0, roundFunc        ),
-    FUNCTION(round,              2, 0, 0, roundFunc        ),
-#endif
-    FUNCTION(upper,              1, 0, 0, upperFunc        ),
-    FUNCTION(lower,              1, 0, 0, lowerFunc        ),
-    FUNCTION(hex,                1, 0, 0, hexFunc          ),
-    INLINE_FUNC(ifnull,          2, INLINEFUNC_coalesce, SQLITE_FUNC_COALESCE),
-    VFUNCTION(random,            0, 0, 0, randomFunc       ),
-    VFUNCTION(randomblob,        1, 0, 0, randomBlob       ),
-    FUNCTION(nullif,             2, 0, 1, nullifFunc       ),
-    DFUNCTION(sqlite_version,    0, 0, 0, versionFunc      ),
-    DFUNCTION(sqlite_source_id,  0, 0, 0, sourceidFunc     ),
-    FUNCTION(sqlite_log,         2, 0, 0, errlogFunc       ),
-    FUNCTION(quote,              1, 0, 0, quoteFunc        ),
-    VFUNCTION(last_insert_rowid, 0, 0, 0, last_insert_rowid),
-    VFUNCTION(changes,           0, 0, 0, changes          ),
-    VFUNCTION(total_changes,     0, 0, 0, total_changes    ),
-    FUNCTION(replace,            3, 0, 0, replaceFunc      ),
-    FUNCTION(zeroblob,           1, 0, 0, zeroblobFunc     ),
-    FUNCTION(substr,             2, 0, 0, substrFunc       ),
-    FUNCTION(substr,             3, 0, 0, substrFunc       ),
-    WAGGREGATE(sum,   1,0,0, sumStep, sumFinalize, sumFinalize, sumInverse, 0),
-    WAGGREGATE(total, 1,0,0, sumStep,totalFinalize,totalFinalize,sumInverse, 0),
-    WAGGREGATE(avg,   1,0,0, sumStep, avgFinalize, avgFinalize, sumInverse, 0),
-    WAGGREGATE(count, 0,0,0, countStep, 
-        countFinalize, countFinalize, countInverse, SQLITE_FUNC_COUNT  ),
-    WAGGREGATE(count, 1,0,0, countStep, 
-        countFinalize, countFinalize, countInverse, 0  ),
-    WAGGREGATE(group_concat, 1, 0, 0, groupConcatStep, 
-        groupConcatFinalize, groupConcatValue, groupConcatInverse, 0),
-    WAGGREGATE(group_concat, 2, 0, 0, groupConcatStep, 
-        groupConcatFinalize, groupConcatValue, groupConcatInverse, 0),
-  
-    LIKEFUNC(glob, 2, &globInfo, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
-#ifdef SQLITE_CASE_SENSITIVE_LIKE
-    LIKEFUNC(like, 2, &likeInfoAlt, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
-    LIKEFUNC(like, 3, &likeInfoAlt, SQLITE_FUNC_LIKE|SQLITE_FUNC_CASE),
-#else
-    LIKEFUNC(like, 2, &likeInfoNorm, SQLITE_FUNC_LIKE),
-    LIKEFUNC(like, 3, &likeInfoNorm, SQLITE_FUNC_LIKE),
-#endif
-#ifdef SQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
-    FUNCTION(unknown,           -1, 0, 0, unknownFunc      ),
-#endif
-    FUNCTION(coalesce,           1, 0, 0, 0                ),
-    FUNCTION(coalesce,           0, 0, 0, 0                ),
-    INLINE_FUNC(coalesce,       -1, INLINEFUNC_coalesce, SQLITE_FUNC_COALESCE),
-  };
-#ifndef SQLITE_OMIT_ALTERTABLE
-  tdsqlite3AlterFunctions();
-#endif
-  tdsqlite3WindowFunctions();
-  tdsqlite3RegisterDateTimeFunctions();
-  tdsqlite3InsertBuiltinFuncs(aBuiltinFunc, ArraySize(aBuiltinFunc));
-
-#if 0  /* Enable to print out how the built-in functions are hashed */
-  {
-    int i;
-    FuncDef *p;
-    for(i=0; i<SQLITE_FUNC_HASH_SZ; i++){
-      printf("FUNC-HASH %02d:", i);
-      for(p=tdsqlite3BuiltinFunctions.a[i]; p; p=p->u.pHash){
-        int n = tdsqlite3Strlen30(p->zName);
-        int h = p->zName[0] + n;
-        printf(" %s(%d)", p->zName, h);
-      }
-      printf("\n");
-    }
-  }
-#endif
-}
-
-/************** End of func.c ************************************************/
-/************** Begin file fkey.c ********************************************/
-/*
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code used by the compiler to add foreign key
-** support to compiled SQL statements.
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-#ifndef SQLITE_OMIT_TRIGGER
-
-/*
-** Deferred and Immediate FKs
-** --------------------------
-**
-** Foreign keys in SQLite come in two flavours: deferred and immediate.
-** If an immediate foreign key constraint is violated,
-** SQLITE_CONSTRAINT_FOREIGNKEY is returned and the current
-** statement transaction rolled back. If a 
-** deferred foreign key constraint is violated, no action is taken 
-** immediately. However if the application attempts to commit the 
-** transaction before fixing the constraint violation, the attempt fails.
-**
-** Deferred constraints are implemented using a simple counter associated
-** with the database handle. The counter is set to zero each time a 
-** database transaction is opened. Each time a statement is executed 
-** that causes a foreign key violation, the counter is incremented. Each
-** time a statement is executed that removes an existing violation from
-** the database, the counter is decremented. When the transaction is
-** committed, the commit fails if the current value of the counter is
-** greater than zero. This scheme has two big drawbacks:
-**
-**   * When a commit fails due to a deferred foreign key constraint, 
-**     there is no way to tell which foreign constraint is not satisfied,
-**     or which row it is not satisfied for.
-**
-**   * If the database contains foreign key violations when the 
-**     transaction is opened, this may cause the mechanism to malfunction.
-**
-** Despite these problems, this approach is adopted as it seems simpler
-** than the alternatives.
-**
-** INSERT operations:
-**
-**   I.1) For each FK for which the table is the child table, search
-**        the parent table for a match. If none is found increment the
-**        constraint counter.
-**
-**   I.2) For each FK for which the table is the parent table, 
-**        search the child table for rows that correspond to the new
-**        row in the parent table. Decrement the counter for each row
-**        found (as the constraint is now satisfied).
-**
-** DELETE operations:
-**
-**   D.1) For each FK for which the table is the child table, 
-**        search the parent table for a row that corresponds to the 
-**        deleted row in the child table. If such a row is not found, 
-**        decrement the counter.
-**
-**   D.2) For each FK for which the table is the parent table, search 
-**        the child table for rows that correspond to the deleted row 
-**        in the parent table. For each found increment the counter.
-**
-** UPDATE operations:
-**
-**   An UPDATE command requires that all 4 steps above are taken, but only
-**   for FK constraints for which the affected columns are actually 
-**   modified (values must be compared at runtime).
-**
-** Note that I.1 and D.1 are very similar operations, as are I.2 and D.2.
-** This simplifies the implementation a bit.
-**
-** For the purposes of immediate FK constraints, the OR REPLACE conflict
-** resolution is considered to delete rows before the new row is inserted.
-** If a delete caused by OR REPLACE violates an FK constraint, an exception
-** is thrown, even if the FK constraint would be satisfied after the new 
-** row is inserted.
-**
-** Immediate constraints are usually handled similarly. The only difference 
-** is that the counter used is stored as part of each individual statement
-** object (struct Vdbe). If, after the statement has run, its immediate
-** constraint counter is greater than zero,
-** it returns SQLITE_CONSTRAINT_FOREIGNKEY
-** and the statement transaction is rolled back. An exception is an INSERT
-** statement that inserts a single row only (no triggers). In this case,
-** instead of using a counter, an exception is thrown immediately if the
-** INSERT violates a foreign key constraint. This is necessary as such
-** an INSERT does not open a statement transaction.
-**
-** TODO: How should dropping a table be handled? How should renaming a 
-** table be handled?
-**
-**
-** Query API Notes
-** ---------------
-**
-** Before coding an UPDATE or DELETE row operation, the code-generator
-** for those two operations needs to know whether or not the operation
-** requires any FK processing and, if so, which columns of the original
-** row are required by the FK processing VDBE code (i.e. if FKs were
-** implemented using triggers, which of the old.* columns would be 
-** accessed). No information is required by the code-generator before
-** coding an INSERT operation. The functions used by the UPDATE/DELETE
-** generation code to query for this information are:
-**
-**   tdsqlite3FkRequired() - Test to see if FK processing is required.
-**   tdsqlite3FkOldmask()  - Query for the set of required old.* columns.
-**
-**
-** Externally accessible module functions
-** --------------------------------------
-**
-**   tdsqlite3FkCheck()    - Check for foreign key violations.
-**   tdsqlite3FkActions()  - Code triggers for ON UPDATE/ON DELETE actions.
-**   tdsqlite3FkDelete()   - Delete an FKey structure.
-*/
-
-/*
-** VDBE Calling Convention
-** -----------------------
-**
-** Example:
-**
-**   For the following INSERT statement:
-**
-**     CREATE TABLE t1(a, b INTEGER PRIMARY KEY, c);
-**     INSERT INTO t1 VALUES(1, 2, 3.1);
-**
-**   Register (x):        2    (type integer)
-**   Register (x+1):      1    (type integer)
-**   Register (x+2):      NULL (type NULL)
-**   Register (x+3):      3.1  (type real)
-*/
-
-/*
-** A foreign key constraint requires that the key columns in the parent
-** table are collectively subject to a UNIQUE or PRIMARY KEY constraint.
-** Given that pParent is the parent table for foreign key constraint pFKey, 
-** search the schema for a unique index on the parent key columns. 
-**
-** If successful, zero is returned. If the parent key is an INTEGER PRIMARY 
-** KEY column, then output variable *ppIdx is set to NULL. Otherwise, *ppIdx 
-** is set to point to the unique index. 
-** 
-** If the parent key consists of a single column (the foreign key constraint
-** is not a composite foreign key), output variable *paiCol is set to NULL.
-** Otherwise, it is set to point to an allocated array of size N, where
-** N is the number of columns in the parent key. The first element of the
-** array is the index of the child table column that is mapped by the FK
-** constraint to the parent table column stored in the left-most column
-** of index *ppIdx. The second element of the array is the index of the
-** child table column that corresponds to the second left-most column of
-** *ppIdx, and so on.
-**
-** If the required index cannot be found, either because:
-**
-**   1) The named parent key columns do not exist, or
-**
-**   2) The named parent key columns do exist, but are not subject to a
-**      UNIQUE or PRIMARY KEY constraint, or
-**
-**   3) No parent key columns were provided explicitly as part of the
-**      foreign key definition, and the parent table does not have a
-**      PRIMARY KEY, or
-**
-**   4) No parent key columns were provided explicitly as part of the
-**      foreign key definition, and the PRIMARY KEY of the parent table 
-**      consists of a different number of columns to the child key in 
-**      the child table.
-**
-** then non-zero is returned, and a "foreign key mismatch" error loaded
-** into pParse. If an OOM error occurs, non-zero is returned and the
-** pParse->db->mallocFailed flag is set.
-*/
-SQLITE_PRIVATE int tdsqlite3FkLocateIndex(
-  Parse *pParse,                  /* Parse context to store any error in */
-  Table *pParent,                 /* Parent table of FK constraint pFKey */
-  FKey *pFKey,                    /* Foreign key to find index for */
-  Index **ppIdx,                  /* OUT: Unique index on parent table */
-  int **paiCol                    /* OUT: Map of index columns in pFKey */
-){
-  Index *pIdx = 0;                    /* Value to return via *ppIdx */
-  int *aiCol = 0;                     /* Value to return via *paiCol */
-  int nCol = pFKey->nCol;             /* Number of columns in parent key */
-  char *zKey = pFKey->aCol[0].zCol;   /* Name of left-most parent key column */
-
-  /* The caller is responsible for zeroing output parameters. */
-  assert( ppIdx && *ppIdx==0 );
-  assert( !paiCol || *paiCol==0 );
-  assert( pParse );
-
-  /* If this is a non-composite (single column) foreign key, check if it 
-  ** maps to the INTEGER PRIMARY KEY of table pParent. If so, leave *ppIdx 
-  ** and *paiCol set to zero and return early. 
-  **
-  ** Otherwise, for a composite foreign key (more than one column), allocate
-  ** space for the aiCol array (returned via output parameter *paiCol).
-  ** Non-composite foreign keys do not require the aiCol array.
-  */
-  if( nCol==1 ){
-    /* The FK maps to the IPK if any of the following are true:
-    **
-    **   1) There is an INTEGER PRIMARY KEY column and the FK is implicitly 
-    **      mapped to the primary key of table pParent, or
-    **   2) The FK is explicitly mapped to a column declared as INTEGER
-    **      PRIMARY KEY.
-    */
-    if( pParent->iPKey>=0 ){
-      if( !zKey ) return 0;
-      if( !tdsqlite3StrICmp(pParent->aCol[pParent->iPKey].zName, zKey) ) return 0;
-    }
-  }else if( paiCol ){
-    assert( nCol>1 );
-    aiCol = (int *)tdsqlite3DbMallocRawNN(pParse->db, nCol*sizeof(int));
-    if( !aiCol ) return 1;
-    *paiCol = aiCol;
-  }
-
-  for(pIdx=pParent->pIndex; pIdx; pIdx=pIdx->pNext){
-    if( pIdx->nKeyCol==nCol && IsUniqueIndex(pIdx) && pIdx->pPartIdxWhere==0 ){ 
-      /* pIdx is a UNIQUE index (or a PRIMARY KEY) and has the right number
-      ** of columns. If each indexed column corresponds to a foreign key
-      ** column of pFKey, then this index is a winner.  */
-
-      if( zKey==0 ){
-        /* If zKey is NULL, then this foreign key is implicitly mapped to 
-        ** the PRIMARY KEY of table pParent. The PRIMARY KEY index may be 
-        ** identified by the test.  */
-        if( IsPrimaryKeyIndex(pIdx) ){
-          if( aiCol ){
-            int i;
-            for(i=0; i<nCol; i++) aiCol[i] = pFKey->aCol[i].iFrom;
-          }
-          break;
-        }
-      }else{
-        /* If zKey is non-NULL, then this foreign key was declared to
-        ** map to an explicit list of columns in table pParent. Check if this
-        ** index matches those columns. Also, check that the index uses
-        ** the default collation sequences for each column. */
-        int i, j;
-        for(i=0; i<nCol; i++){
-          i16 iCol = pIdx->aiColumn[i];     /* Index of column in parent tbl */
-          const char *zDfltColl;            /* Def. collation for column */
-          char *zIdxCol;                    /* Name of indexed column */
-
-          if( iCol<0 ) break; /* No foreign keys against expression indexes */
-
-          /* If the index uses a collation sequence that is different from
-          ** the default collation sequence for the column, this index is
-          ** unusable. Bail out early in this case.  */
-          zDfltColl = pParent->aCol[iCol].zColl;
-          if( !zDfltColl ) zDfltColl = tdsqlite3StrBINARY;
-          if( tdsqlite3StrICmp(pIdx->azColl[i], zDfltColl) ) break;
-
-          zIdxCol = pParent->aCol[iCol].zName;
-          for(j=0; j<nCol; j++){
-            if( tdsqlite3StrICmp(pFKey->aCol[j].zCol, zIdxCol)==0 ){
-              if( aiCol ) aiCol[i] = pFKey->aCol[j].iFrom;
-              break;
-            }
-          }
-          if( j==nCol ) break;
-        }
-        if( i==nCol ) break;      /* pIdx is usable */
-      }
-    }
-  }
-
-  if( !pIdx ){
-    if( !pParse->disableTriggers ){
-      tdsqlite3ErrorMsg(pParse,
-           "foreign key mismatch - \"%w\" referencing \"%w\"",
-           pFKey->pFrom->zName, pFKey->zTo);
-    }
-    tdsqlite3DbFree(pParse->db, aiCol);
-    return 1;
-  }
-
-  *ppIdx = pIdx;
-  return 0;
-}
-
-/*
-** This function is called when a row is inserted into or deleted from the 
-** child table of foreign key constraint pFKey. If an SQL UPDATE is executed 
-** on the child table of pFKey, this function is invoked twice for each row
-** affected - once to "delete" the old row, and then again to "insert" the
-** new row.
-**
-** Each time it is called, this function generates VDBE code to locate the
-** row in the parent table that corresponds to the row being inserted into 
-** or deleted from the child table. If the parent row can be found, no 
-** special action is taken. Otherwise, if the parent row can *not* be
-** found in the parent table:
-**
-**   Operation | FK type   | Action taken
-**   --------------------------------------------------------------------------
-**   INSERT      immediate   Increment the "immediate constraint counter".
-**
-**   DELETE      immediate   Decrement the "immediate constraint counter".
-**
-**   INSERT      deferred    Increment the "deferred constraint counter".
-**
-**   DELETE      deferred    Decrement the "deferred constraint counter".
-**
-** These operations are identified in the comment at the top of this file 
-** (fkey.c) as "I.1" and "D.1".
-*/
-static void fkLookupParent(
-  Parse *pParse,        /* Parse context */
-  int iDb,              /* Index of database housing pTab */
-  Table *pTab,          /* Parent table of FK pFKey */
-  Index *pIdx,          /* Unique index on parent key columns in pTab */
-  FKey *pFKey,          /* Foreign key constraint */
-  int *aiCol,           /* Map from parent key columns to child table columns */
-  int regData,          /* Address of array containing child table row */
-  int nIncr,            /* Increment constraint counter by this */
-  int isIgnore          /* If true, pretend pTab contains all NULL values */
-){
-  int i;                                    /* Iterator variable */
-  Vdbe *v = tdsqlite3GetVdbe(pParse);         /* Vdbe to add code to */
-  int iCur = pParse->nTab - 1;              /* Cursor number to use */
-  int iOk = tdsqlite3VdbeMakeLabel(pParse);   /* jump here if parent key found */
-
-  tdsqlite3VdbeVerifyAbortable(v,
-    (!pFKey->isDeferred
-      && !(pParse->db->flags & SQLITE_DeferFKs)
-      && !pParse->pToplevel 
-      && !pParse->isMultiWrite) ? OE_Abort : OE_Ignore);
-
-  /* If nIncr is less than zero, then check at runtime if there are any
-  ** outstanding constraints to resolve. If there are not, there is no need
-  ** to check if deleting this row resolves any outstanding violations.
-  **
-  ** Check if any of the key columns in the child table row are NULL. If 
-  ** any are, then the constraint is considered satisfied. No need to 
-  ** search for a matching row in the parent table.  */
-  if( nIncr<0 ){
-    tdsqlite3VdbeAddOp2(v, OP_FkIfZero, pFKey->isDeferred, iOk);
-    VdbeCoverage(v);
-  }
-  for(i=0; i<pFKey->nCol; i++){
-    int iReg = tdsqlite3TableColumnToStorage(pFKey->pFrom,aiCol[i]) + regData + 1;
-    tdsqlite3VdbeAddOp2(v, OP_IsNull, iReg, iOk); VdbeCoverage(v);
-  }
-
-  if( isIgnore==0 ){
-    if( pIdx==0 ){
-      /* If pIdx is NULL, then the parent key is the INTEGER PRIMARY KEY
-      ** column of the parent table (table pTab).  */
-      int iMustBeInt;               /* Address of MustBeInt instruction */
-      int regTemp = tdsqlite3GetTempReg(pParse);
-  
-      /* Invoke MustBeInt to coerce the child key value to an integer (i.e. 
-      ** apply the affinity of the parent key). If this fails, then there
-      ** is no matching parent key. Before using MustBeInt, make a copy of
-      ** the value. Otherwise, the value inserted into the child key column
-      ** will have INTEGER affinity applied to it, which may not be correct.  */
-      tdsqlite3VdbeAddOp2(v, OP_SCopy, 
-        tdsqlite3TableColumnToStorage(pFKey->pFrom,aiCol[0])+1+regData, regTemp);
-      iMustBeInt = tdsqlite3VdbeAddOp2(v, OP_MustBeInt, regTemp, 0);
-      VdbeCoverage(v);
-  
-      /* If the parent table is the same as the child table, and we are about
-      ** to increment the constraint-counter (i.e. this is an INSERT operation),
-      ** then check if the row being inserted matches itself. If so, do not
-      ** increment the constraint-counter.  */
-      if( pTab==pFKey->pFrom && nIncr==1 ){
-        tdsqlite3VdbeAddOp3(v, OP_Eq, regData, iOk, regTemp); VdbeCoverage(v);
-        tdsqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
-      }
-  
-      tdsqlite3OpenTable(pParse, iCur, iDb, pTab, OP_OpenRead);
-      tdsqlite3VdbeAddOp3(v, OP_NotExists, iCur, 0, regTemp); VdbeCoverage(v);
-      tdsqlite3VdbeGoto(v, iOk);
-      tdsqlite3VdbeJumpHere(v, tdsqlite3VdbeCurrentAddr(v)-2);
-      tdsqlite3VdbeJumpHere(v, iMustBeInt);
-      tdsqlite3ReleaseTempReg(pParse, regTemp);
-    }else{
-      int nCol = pFKey->nCol;
-      int regTemp = tdsqlite3GetTempRange(pParse, nCol);
-      int regRec = tdsqlite3GetTempReg(pParse);
-  
-      tdsqlite3VdbeAddOp3(v, OP_OpenRead, iCur, pIdx->tnum, iDb);
-      tdsqlite3VdbeSetP4KeyInfo(pParse, pIdx);
-      for(i=0; i<nCol; i++){
-        tdsqlite3VdbeAddOp2(v, OP_Copy, 
-               tdsqlite3TableColumnToStorage(pFKey->pFrom, aiCol[i])+1+regData,
-               regTemp+i);
-      }
-  
-      /* If the parent table is the same as the child table, and we are about
-      ** to increment the constraint-counter (i.e. this is an INSERT operation),
-      ** then check if the row being inserted matches itself. If so, do not
-      ** increment the constraint-counter. 
-      **
-      ** If any of the parent-key values are NULL, then the row cannot match 
-      ** itself. So set JUMPIFNULL to make sure we do the OP_Found if any
-      ** of the parent-key values are NULL (at this point it is known that
-      ** none of the child key values are).
-      */
-      if( pTab==pFKey->pFrom && nIncr==1 ){
-        int iJump = tdsqlite3VdbeCurrentAddr(v) + nCol + 1;
-        for(i=0; i<nCol; i++){
-          int iChild = tdsqlite3TableColumnToStorage(pFKey->pFrom,aiCol[i])
-                              +1+regData;
-          int iParent = 1+regData;
-          iParent += tdsqlite3TableColumnToStorage(pIdx->pTable,
-                                                 pIdx->aiColumn[i]);
-          assert( pIdx->aiColumn[i]>=0 );
-          assert( aiCol[i]!=pTab->iPKey );
-          if( pIdx->aiColumn[i]==pTab->iPKey ){
-            /* The parent key is a composite key that includes the IPK column */
-            iParent = regData;
-          }
-          tdsqlite3VdbeAddOp3(v, OP_Ne, iChild, iJump, iParent); VdbeCoverage(v);
-          tdsqlite3VdbeChangeP5(v, SQLITE_JUMPIFNULL);
-        }
-        tdsqlite3VdbeGoto(v, iOk);
-      }
-  
-      tdsqlite3VdbeAddOp4(v, OP_MakeRecord, regTemp, nCol, regRec,
-                        tdsqlite3IndexAffinityStr(pParse->db,pIdx), nCol);
-      tdsqlite3VdbeAddOp4Int(v, OP_Found, iCur, iOk, regRec, 0); VdbeCoverage(v);
-  
-      tdsqlite3ReleaseTempReg(pParse, regRec);
-      tdsqlite3ReleaseTempRange(pParse, regTemp, nCol);
-    }
-  }
-
-  if( !pFKey->isDeferred && !(pParse->db->flags & SQLITE_DeferFKs)
-   && !pParse->pToplevel 
-   && !pParse->isMultiWrite 
-  ){
-    /* Special case: If this is an INSERT statement that will insert exactly
-    ** one row into the table, raise a constraint immediately instead of
-    ** incrementing a counter. This is necessary as the VM code is being
-    ** generated for will not open a statement transaction.  */
-    assert( nIncr==1 );
-    tdsqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_FOREIGNKEY,
-        OE_Abort, 0, P4_STATIC, P5_ConstraintFK);
-  }else{
-    if( nIncr>0 && pFKey->isDeferred==0 ){
-      tdsqlite3MayAbort(pParse);
-    }
-    tdsqlite3VdbeAddOp2(v, OP_FkCounter, pFKey->isDeferred, nIncr);
-  }
-
-  tdsqlite3VdbeResolveLabel(v, iOk);
-  tdsqlite3VdbeAddOp1(v, OP_Close, iCur);
-}
-
-
-/*
-** Return an Expr object that refers to a memory register corresponding
-** to column iCol of table pTab.
-**
-** regBase is the first of an array of register that contains the data
-** for pTab.  regBase itself holds the rowid.  regBase+1 holds the first
-** column.  regBase+2 holds the second column, and so forth.
-*/
-static Expr *exprTableRegister(
-  Parse *pParse,     /* Parsing and code generating context */
-  Table *pTab,       /* The table whose content is at r[regBase]... */
-  int regBase,       /* Contents of table pTab */
-  i16 iCol           /* Which column of pTab is desired */
-){
-  Expr *pExpr;
-  Column *pCol;
-  const char *zColl;
-  tdsqlite3 *db = pParse->db;
-
-  pExpr = tdsqlite3Expr(db, TK_REGISTER, 0);
-  if( pExpr ){
-    if( iCol>=0 && iCol!=pTab->iPKey ){
-      pCol = &pTab->aCol[iCol];
-      pExpr->iTable = regBase + tdsqlite3TableColumnToStorage(pTab,iCol) + 1;
-      pExpr->affExpr = pCol->affinity;
-      zColl = pCol->zColl;
-      if( zColl==0 ) zColl = db->pDfltColl->zName;
-      pExpr = tdsqlite3ExprAddCollateString(pParse, pExpr, zColl);
-    }else{
-      pExpr->iTable = regBase;
-      pExpr->affExpr = SQLITE_AFF_INTEGER;
-    }
-  }
-  return pExpr;
-}
-
-/*
-** Return an Expr object that refers to column iCol of table pTab which
-** has cursor iCur.
-*/
-static Expr *exprTableColumn(
-  tdsqlite3 *db,      /* The database connection */
-  Table *pTab,      /* The table whose column is desired */
-  int iCursor,      /* The open cursor on the table */
-  i16 iCol          /* The column that is wanted */
-){
-  Expr *pExpr = tdsqlite3Expr(db, TK_COLUMN, 0);
-  if( pExpr ){
-    pExpr->y.pTab = pTab;
-    pExpr->iTable = iCursor;
-    pExpr->iColumn = iCol;
-  }
-  return pExpr;
-}
-
-/*
-** This function is called to generate code executed when a row is deleted
-** from the parent table of foreign key constraint pFKey and, if pFKey is 
-** deferred, when a row is inserted into the same table. When generating
-** code for an SQL UPDATE operation, this function may be called twice -
-** once to "delete" the old row and once to "insert" the new row.
-**
-** Parameter nIncr is passed -1 when inserting a row (as this may decrease
-** the number of FK violations in the db) or +1 when deleting one (as this
-** may increase the number of FK constraint problems).
-**
-** The code generated by this function scans through the rows in the child
-** table that correspond to the parent table row being deleted or inserted.
-** For each child row found, one of the following actions is taken:
-**
-**   Operation | FK type   | Action taken
-**   --------------------------------------------------------------------------
-**   DELETE      immediate   Increment the "immediate constraint counter".
-**                           Or, if the ON (UPDATE|DELETE) action is RESTRICT,
-**                           throw a "FOREIGN KEY constraint failed" exception.
-**
-**   INSERT      immediate   Decrement the "immediate constraint counter".
-**
-**   DELETE      deferred    Increment the "deferred constraint counter".
-**                           Or, if the ON (UPDATE|DELETE) action is RESTRICT,
-**                           throw a "FOREIGN KEY constraint failed" exception.
-**
-**   INSERT      deferred    Decrement the "deferred constraint counter".
-**
-** These operations are identified in the comment at the top of this file 
-** (fkey.c) as "I.2" and "D.2".
-*/
-static void fkScanChildren(
-  Parse *pParse,                  /* Parse context */
-  SrcList *pSrc,                  /* The child table to be scanned */
-  Table *pTab,                    /* The parent table */
-  Index *pIdx,                    /* Index on parent covering the foreign key */
-  FKey *pFKey,                    /* The foreign key linking pSrc to pTab */
-  int *aiCol,                     /* Map from pIdx cols to child table cols */
-  int regData,                    /* Parent row data starts here */
-  int nIncr                       /* Amount to increment deferred counter by */
-){
-  tdsqlite3 *db = pParse->db;       /* Database handle */
-  int i;                          /* Iterator variable */
-  Expr *pWhere = 0;               /* WHERE clause to scan with */
-  NameContext sNameContext;       /* Context used to resolve WHERE clause */
-  WhereInfo *pWInfo;              /* Context used by tdsqlite3WhereXXX() */
-  int iFkIfZero = 0;              /* Address of OP_FkIfZero */
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-
-  assert( pIdx==0 || pIdx->pTable==pTab );
-  assert( pIdx==0 || pIdx->nKeyCol==pFKey->nCol );
-  assert( pIdx!=0 || pFKey->nCol==1 );
-  assert( pIdx!=0 || HasRowid(pTab) );
-
-  if( nIncr<0 ){
-    iFkIfZero = tdsqlite3VdbeAddOp2(v, OP_FkIfZero, pFKey->isDeferred, 0);
-    VdbeCoverage(v);
-  }
-
-  /* Create an Expr object representing an SQL expression like:
-  **
-  **   <parent-key1> = <child-key1> AND <parent-key2> = <child-key2> ...
-  **
-  ** The collation sequence used for the comparison should be that of
-  ** the parent key columns. The affinity of the parent key column should
-  ** be applied to each child key value before the comparison takes place.
-  */
-  for(i=0; i<pFKey->nCol; i++){
-    Expr *pLeft;                  /* Value from parent table row */
-    Expr *pRight;                 /* Column ref to child table */
-    Expr *pEq;                    /* Expression (pLeft = pRight) */
-    i16 iCol;                     /* Index of column in child table */ 
-    const char *zCol;             /* Name of column in child table */
-
-    iCol = pIdx ? pIdx->aiColumn[i] : -1;
-    pLeft = exprTableRegister(pParse, pTab, regData, iCol);
-    iCol = aiCol ? aiCol[i] : pFKey->aCol[0].iFrom;
-    assert( iCol>=0 );
-    zCol = pFKey->pFrom->aCol[iCol].zName;
-    pRight = tdsqlite3Expr(db, TK_ID, zCol);
-    pEq = tdsqlite3PExpr(pParse, TK_EQ, pLeft, pRight);
-    pWhere = tdsqlite3ExprAnd(pParse, pWhere, pEq);
-  }
-
-  /* If the child table is the same as the parent table, then add terms
-  ** to the WHERE clause that prevent this entry from being scanned.
-  ** The added WHERE clause terms are like this:
-  **
-  **     $current_rowid!=rowid
-  **     NOT( $current_a==a AND $current_b==b AND ... )
-  **
-  ** The first form is used for rowid tables.  The second form is used
-  ** for WITHOUT ROWID tables. In the second form, the *parent* key is
-  ** (a,b,...). Either the parent or primary key could be used to 
-  ** uniquely identify the current row, but the parent key is more convenient
-  ** as the required values have already been loaded into registers
-  ** by the caller.
-  */
-  if( pTab==pFKey->pFrom && nIncr>0 ){
-    Expr *pNe;                    /* Expression (pLeft != pRight) */
-    Expr *pLeft;                  /* Value from parent table row */
-    Expr *pRight;                 /* Column ref to child table */
-    if( HasRowid(pTab) ){
-      pLeft = exprTableRegister(pParse, pTab, regData, -1);
-      pRight = exprTableColumn(db, pTab, pSrc->a[0].iCursor, -1);
-      pNe = tdsqlite3PExpr(pParse, TK_NE, pLeft, pRight);
-    }else{
-      Expr *pEq, *pAll = 0;
-      assert( pIdx!=0 );
-      for(i=0; i<pIdx->nKeyCol; i++){
-        i16 iCol = pIdx->aiColumn[i];
-        assert( iCol>=0 );
-        pLeft = exprTableRegister(pParse, pTab, regData, iCol);
-        pRight = tdsqlite3Expr(db, TK_ID, pTab->aCol[iCol].zName);
-        pEq = tdsqlite3PExpr(pParse, TK_IS, pLeft, pRight);
-        pAll = tdsqlite3ExprAnd(pParse, pAll, pEq);
-      }
-      pNe = tdsqlite3PExpr(pParse, TK_NOT, pAll, 0);
-    }
-    pWhere = tdsqlite3ExprAnd(pParse, pWhere, pNe);
-  }
-
-  /* Resolve the references in the WHERE clause. */
-  memset(&sNameContext, 0, sizeof(NameContext));
-  sNameContext.pSrcList = pSrc;
-  sNameContext.pParse = pParse;
-  tdsqlite3ResolveExprNames(&sNameContext, pWhere);
-
-  /* Create VDBE to loop through the entries in pSrc that match the WHERE
-  ** clause. For each row found, increment either the deferred or immediate
-  ** foreign key constraint counter. */
-  if( pParse->nErr==0 ){
-    pWInfo = tdsqlite3WhereBegin(pParse, pSrc, pWhere, 0, 0, 0, 0);
-    tdsqlite3VdbeAddOp2(v, OP_FkCounter, pFKey->isDeferred, nIncr);
-    if( pWInfo ){
-      tdsqlite3WhereEnd(pWInfo);
-    }
-  }
-
-  /* Clean up the WHERE clause constructed above. */
-  tdsqlite3ExprDelete(db, pWhere);
-  if( iFkIfZero ){
-    tdsqlite3VdbeJumpHere(v, iFkIfZero);
-  }
-}
-
-/*
-** This function returns a linked list of FKey objects (connected by
-** FKey.pNextTo) holding all children of table pTab.  For example,
-** given the following schema:
-**
-**   CREATE TABLE t1(a PRIMARY KEY);
-**   CREATE TABLE t2(b REFERENCES t1(a);
-**
-** Calling this function with table "t1" as an argument returns a pointer
-** to the FKey structure representing the foreign key constraint on table
-** "t2". Calling this function with "t2" as the argument would return a
-** NULL pointer (as there are no FK constraints for which t2 is the parent
-** table).
-*/
-SQLITE_PRIVATE FKey *tdsqlite3FkReferences(Table *pTab){
-  return (FKey *)tdsqlite3HashFind(&pTab->pSchema->fkeyHash, pTab->zName);
-}
-
-/*
-** The second argument is a Trigger structure allocated by the 
-** fkActionTrigger() routine. This function deletes the Trigger structure
-** and all of its sub-components.
-**
-** The Trigger structure or any of its sub-components may be allocated from
-** the lookaside buffer belonging to database handle dbMem.
-*/
-static void fkTriggerDelete(tdsqlite3 *dbMem, Trigger *p){
-  if( p ){
-    TriggerStep *pStep = p->step_list;
-    tdsqlite3ExprDelete(dbMem, pStep->pWhere);
-    tdsqlite3ExprListDelete(dbMem, pStep->pExprList);
-    tdsqlite3SelectDelete(dbMem, pStep->pSelect);
-    tdsqlite3ExprDelete(dbMem, p->pWhen);
-    tdsqlite3DbFree(dbMem, p);
-  }
-}
-
-/*
-** This function is called to generate code that runs when table pTab is
-** being dropped from the database. The SrcList passed as the second argument
-** to this function contains a single entry guaranteed to resolve to
-** table pTab.
-**
-** Normally, no code is required. However, if either
-**
-**   (a) The table is the parent table of a FK constraint, or
-**   (b) The table is the child table of a deferred FK constraint and it is
-**       determined at runtime that there are outstanding deferred FK 
-**       constraint violations in the database,
-**
-** then the equivalent of "DELETE FROM <tbl>" is executed before dropping
-** the table from the database. Triggers are disabled while running this
-** DELETE, but foreign key actions are not.
-*/
-SQLITE_PRIVATE void tdsqlite3FkDropTable(Parse *pParse, SrcList *pName, Table *pTab){
-  tdsqlite3 *db = pParse->db;
-  if( (db->flags&SQLITE_ForeignKeys) && !IsVirtual(pTab) ){
-    int iSkip = 0;
-    Vdbe *v = tdsqlite3GetVdbe(pParse);
-
-    assert( v );                  /* VDBE has already been allocated */
-    assert( pTab->pSelect==0 );   /* Not a view */
-    if( tdsqlite3FkReferences(pTab)==0 ){
-      /* Search for a deferred foreign key constraint for which this table
-      ** is the child table. If one cannot be found, return without 
-      ** generating any VDBE code. If one can be found, then jump over
-      ** the entire DELETE if there are no outstanding deferred constraints
-      ** when this statement is run.  */
-      FKey *p;
-      for(p=pTab->pFKey; p; p=p->pNextFrom){
-        if( p->isDeferred || (db->flags & SQLITE_DeferFKs) ) break;
-      }
-      if( !p ) return;
-      iSkip = tdsqlite3VdbeMakeLabel(pParse);
-      tdsqlite3VdbeAddOp2(v, OP_FkIfZero, 1, iSkip); VdbeCoverage(v);
-    }
-
-    pParse->disableTriggers = 1;
-    tdsqlite3DeleteFrom(pParse, tdsqlite3SrcListDup(db, pName, 0), 0, 0, 0);
-    pParse->disableTriggers = 0;
-
-    /* If the DELETE has generated immediate foreign key constraint 
-    ** violations, halt the VDBE and return an error at this point, before
-    ** any modifications to the schema are made. This is because statement
-    ** transactions are not able to rollback schema changes.  
-    **
-    ** If the SQLITE_DeferFKs flag is set, then this is not required, as
-    ** the statement transaction will not be rolled back even if FK
-    ** constraints are violated.
-    */
-    if( (db->flags & SQLITE_DeferFKs)==0 ){
-      tdsqlite3VdbeVerifyAbortable(v, OE_Abort);
-      tdsqlite3VdbeAddOp2(v, OP_FkIfZero, 0, tdsqlite3VdbeCurrentAddr(v)+2);
-      VdbeCoverage(v);
-      tdsqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_FOREIGNKEY,
-          OE_Abort, 0, P4_STATIC, P5_ConstraintFK);
-    }
-
-    if( iSkip ){
-      tdsqlite3VdbeResolveLabel(v, iSkip);
-    }
-  }
-}
-
-
-/*
-** The second argument points to an FKey object representing a foreign key
-** for which pTab is the child table. An UPDATE statement against pTab
-** is currently being processed. For each column of the table that is 
-** actually updated, the corresponding element in the aChange[] array
-** is zero or greater (if a column is unmodified the corresponding element
-** is set to -1). If the rowid column is modified by the UPDATE statement
-** the bChngRowid argument is non-zero.
-**
-** This function returns true if any of the columns that are part of the
-** child key for FK constraint *p are modified.
-*/
-static int fkChildIsModified(
-  Table *pTab,                    /* Table being updated */
-  FKey *p,                        /* Foreign key for which pTab is the child */
-  int *aChange,                   /* Array indicating modified columns */
-  int bChngRowid                  /* True if rowid is modified by this update */
-){
-  int i;
-  for(i=0; i<p->nCol; i++){
-    int iChildKey = p->aCol[i].iFrom;
-    if( aChange[iChildKey]>=0 ) return 1;
-    if( iChildKey==pTab->iPKey && bChngRowid ) return 1;
-  }
-  return 0;
-}
-
-/*
-** The second argument points to an FKey object representing a foreign key
-** for which pTab is the parent table. An UPDATE statement against pTab
-** is currently being processed. For each column of the table that is 
-** actually updated, the corresponding element in the aChange[] array
-** is zero or greater (if a column is unmodified the corresponding element
-** is set to -1). If the rowid column is modified by the UPDATE statement
-** the bChngRowid argument is non-zero.
-**
-** This function returns true if any of the columns that are part of the
-** parent key for FK constraint *p are modified.
-*/
-static int fkParentIsModified(
-  Table *pTab, 
-  FKey *p, 
-  int *aChange, 
-  int bChngRowid
-){
-  int i;
-  for(i=0; i<p->nCol; i++){
-    char *zKey = p->aCol[i].zCol;
-    int iKey;
-    for(iKey=0; iKey<pTab->nCol; iKey++){
-      if( aChange[iKey]>=0 || (iKey==pTab->iPKey && bChngRowid) ){
-        Column *pCol = &pTab->aCol[iKey];
-        if( zKey ){
-          if( 0==tdsqlite3StrICmp(pCol->zName, zKey) ) return 1;
-        }else if( pCol->colFlags & COLFLAG_PRIMKEY ){
-          return 1;
-        }
-      }
-    }
-  }
-  return 0;
-}
-
-/*
-** Return true if the parser passed as the first argument is being
-** used to code a trigger that is really a "SET NULL" action belonging
-** to trigger pFKey.
-*/
-static int isSetNullAction(Parse *pParse, FKey *pFKey){
-  Parse *pTop = tdsqlite3ParseToplevel(pParse);
-  if( pTop->pTriggerPrg ){
-    Trigger *p = pTop->pTriggerPrg->pTrigger;
-    if( (p==pFKey->apTrigger[0] && pFKey->aAction[0]==OE_SetNull)
-     || (p==pFKey->apTrigger[1] && pFKey->aAction[1]==OE_SetNull)
-    ){
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** This function is called when inserting, deleting or updating a row of
-** table pTab to generate VDBE code to perform foreign key constraint 
-** processing for the operation.
-**
-** For a DELETE operation, parameter regOld is passed the index of the
-** first register in an array of (pTab->nCol+1) registers containing the
-** rowid of the row being deleted, followed by each of the column values
-** of the row being deleted, from left to right. Parameter regNew is passed
-** zero in this case.
-**
-** For an INSERT operation, regOld is passed zero and regNew is passed the
-** first register of an array of (pTab->nCol+1) registers containing the new
-** row data.
-**
-** For an UPDATE operation, this function is called twice. Once before
-** the original record is deleted from the table using the calling convention
-** described for DELETE. Then again after the original record is deleted
-** but before the new record is inserted using the INSERT convention. 
-*/
-SQLITE_PRIVATE void tdsqlite3FkCheck(
-  Parse *pParse,                  /* Parse context */
-  Table *pTab,                    /* Row is being deleted from this table */ 
-  int regOld,                     /* Previous row data is stored here */
-  int regNew,                     /* New row data is stored here */
-  int *aChange,                   /* Array indicating UPDATEd columns (or 0) */
-  int bChngRowid                  /* True if rowid is UPDATEd */
-){
-  tdsqlite3 *db = pParse->db;       /* Database handle */
-  FKey *pFKey;                    /* Used to iterate through FKs */
-  int iDb;                        /* Index of database containing pTab */
-  const char *zDb;                /* Name of database containing pTab */
-  int isIgnoreErrors = pParse->disableTriggers;
-
-  /* Exactly one of regOld and regNew should be non-zero. */
-  assert( (regOld==0)!=(regNew==0) );
-
-  /* If foreign-keys are disabled, this function is a no-op. */
-  if( (db->flags&SQLITE_ForeignKeys)==0 ) return;
-
-  iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-  zDb = db->aDb[iDb].zDbSName;
-
-  /* Loop through all the foreign key constraints for which pTab is the
-  ** child table (the table that the foreign key definition is part of).  */
-  for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
-    Table *pTo;                   /* Parent table of foreign key pFKey */
-    Index *pIdx = 0;              /* Index on key columns in pTo */
-    int *aiFree = 0;
-    int *aiCol;
-    int iCol;
-    int i;
-    int bIgnore = 0;
-
-    if( aChange 
-     && tdsqlite3_stricmp(pTab->zName, pFKey->zTo)!=0
-     && fkChildIsModified(pTab, pFKey, aChange, bChngRowid)==0 
-    ){
-      continue;
-    }
-
-    /* Find the parent table of this foreign key. Also find a unique index 
-    ** on the parent key columns in the parent table. If either of these 
-    ** schema items cannot be located, set an error in pParse and return 
-    ** early.  */
-    if( pParse->disableTriggers ){
-      pTo = tdsqlite3FindTable(db, pFKey->zTo, zDb);
-    }else{
-      pTo = tdsqlite3LocateTable(pParse, 0, pFKey->zTo, zDb);
-    }
-    if( !pTo || tdsqlite3FkLocateIndex(pParse, pTo, pFKey, &pIdx, &aiFree) ){
-      assert( isIgnoreErrors==0 || (regOld!=0 && regNew==0) );
-      if( !isIgnoreErrors || db->mallocFailed ) return;
-      if( pTo==0 ){
-        /* If isIgnoreErrors is true, then a table is being dropped. In this
-        ** case SQLite runs a "DELETE FROM xxx" on the table being dropped
-        ** before actually dropping it in order to check FK constraints.
-        ** If the parent table of an FK constraint on the current table is
-        ** missing, behave as if it is empty. i.e. decrement the relevant
-        ** FK counter for each row of the current table with non-NULL keys.
-        */
-        Vdbe *v = tdsqlite3GetVdbe(pParse);
-        int iJump = tdsqlite3VdbeCurrentAddr(v) + pFKey->nCol + 1;
-        for(i=0; i<pFKey->nCol; i++){
-          int iFromCol, iReg;
-          iFromCol = pFKey->aCol[i].iFrom;
-          iReg = tdsqlite3TableColumnToStorage(pFKey->pFrom,iFromCol) + regOld+1;
-          tdsqlite3VdbeAddOp2(v, OP_IsNull, iReg, iJump); VdbeCoverage(v);
-        }
-        tdsqlite3VdbeAddOp2(v, OP_FkCounter, pFKey->isDeferred, -1);
-      }
-      continue;
-    }
-    assert( pFKey->nCol==1 || (aiFree && pIdx) );
-
-    if( aiFree ){
-      aiCol = aiFree;
-    }else{
-      iCol = pFKey->aCol[0].iFrom;
-      aiCol = &iCol;
-    }
-    for(i=0; i<pFKey->nCol; i++){
-      if( aiCol[i]==pTab->iPKey ){
-        aiCol[i] = -1;
-      }
-      assert( pIdx==0 || pIdx->aiColumn[i]>=0 );
-#ifndef SQLITE_OMIT_AUTHORIZATION
-      /* Request permission to read the parent key columns. If the 
-      ** authorization callback returns SQLITE_IGNORE, behave as if any
-      ** values read from the parent table are NULL. */
-      if( db->xAuth ){
-        int rcauth;
-        char *zCol = pTo->aCol[pIdx ? pIdx->aiColumn[i] : pTo->iPKey].zName;
-        rcauth = tdsqlite3AuthReadCol(pParse, pTo->zName, zCol, iDb);
-        bIgnore = (rcauth==SQLITE_IGNORE);
-      }
-#endif
-    }
-
-    /* Take a shared-cache advisory read-lock on the parent table. Allocate 
-    ** a cursor to use to search the unique index on the parent key columns 
-    ** in the parent table.  */
-    tdsqlite3TableLock(pParse, iDb, pTo->tnum, 0, pTo->zName);
-    pParse->nTab++;
-
-    if( regOld!=0 ){
-      /* A row is being removed from the child table. Search for the parent.
-      ** If the parent does not exist, removing the child row resolves an 
-      ** outstanding foreign key constraint violation. */
-      fkLookupParent(pParse, iDb, pTo, pIdx, pFKey, aiCol, regOld, -1, bIgnore);
-    }
-    if( regNew!=0 && !isSetNullAction(pParse, pFKey) ){
-      /* A row is being added to the child table. If a parent row cannot
-      ** be found, adding the child row has violated the FK constraint. 
-      **
-      ** If this operation is being performed as part of a trigger program
-      ** that is actually a "SET NULL" action belonging to this very 
-      ** foreign key, then omit this scan altogether. As all child key
-      ** values are guaranteed to be NULL, it is not possible for adding
-      ** this row to cause an FK violation.  */
-      fkLookupParent(pParse, iDb, pTo, pIdx, pFKey, aiCol, regNew, +1, bIgnore);
-    }
-
-    tdsqlite3DbFree(db, aiFree);
-  }
-
-  /* Loop through all the foreign key constraints that refer to this table.
-  ** (the "child" constraints) */
-  for(pFKey = tdsqlite3FkReferences(pTab); pFKey; pFKey=pFKey->pNextTo){
-    Index *pIdx = 0;              /* Foreign key index for pFKey */
-    SrcList *pSrc;
-    int *aiCol = 0;
-
-    if( aChange && fkParentIsModified(pTab, pFKey, aChange, bChngRowid)==0 ){
-      continue;
-    }
-
-    if( !pFKey->isDeferred && !(db->flags & SQLITE_DeferFKs) 
-     && !pParse->pToplevel && !pParse->isMultiWrite 
-    ){
-      assert( regOld==0 && regNew!=0 );
-      /* Inserting a single row into a parent table cannot cause (or fix)
-      ** an immediate foreign key violation. So do nothing in this case.  */
-      continue;
-    }
-
-    if( tdsqlite3FkLocateIndex(pParse, pTab, pFKey, &pIdx, &aiCol) ){
-      if( !isIgnoreErrors || db->mallocFailed ) return;
-      continue;
-    }
-    assert( aiCol || pFKey->nCol==1 );
-
-    /* Create a SrcList structure containing the child table.  We need the
-    ** child table as a SrcList for tdsqlite3WhereBegin() */
-    pSrc = tdsqlite3SrcListAppend(pParse, 0, 0, 0);
-    if( pSrc ){
-      struct SrcList_item *pItem = pSrc->a;
-      pItem->pTab = pFKey->pFrom;
-      pItem->zName = pFKey->pFrom->zName;
-      pItem->pTab->nTabRef++;
-      pItem->iCursor = pParse->nTab++;
-  
-      if( regNew!=0 ){
-        fkScanChildren(pParse, pSrc, pTab, pIdx, pFKey, aiCol, regNew, -1);
-      }
-      if( regOld!=0 ){
-        int eAction = pFKey->aAction[aChange!=0];
-        fkScanChildren(pParse, pSrc, pTab, pIdx, pFKey, aiCol, regOld, 1);
-        /* If this is a deferred FK constraint, or a CASCADE or SET NULL
-        ** action applies, then any foreign key violations caused by
-        ** removing the parent key will be rectified by the action trigger.
-        ** So do not set the "may-abort" flag in this case.
-        **
-        ** Note 1: If the FK is declared "ON UPDATE CASCADE", then the
-        ** may-abort flag will eventually be set on this statement anyway
-        ** (when this function is called as part of processing the UPDATE
-        ** within the action trigger).
-        **
-        ** Note 2: At first glance it may seem like SQLite could simply omit
-        ** all OP_FkCounter related scans when either CASCADE or SET NULL
-        ** applies. The trouble starts if the CASCADE or SET NULL action 
-        ** trigger causes other triggers or action rules attached to the 
-        ** child table to fire. In these cases the fk constraint counters
-        ** might be set incorrectly if any OP_FkCounter related scans are 
-        ** omitted.  */
-        if( !pFKey->isDeferred && eAction!=OE_Cascade && eAction!=OE_SetNull ){
-          tdsqlite3MayAbort(pParse);
-        }
-      }
-      pItem->zName = 0;
-      tdsqlite3SrcListDelete(db, pSrc);
-    }
-    tdsqlite3DbFree(db, aiCol);
-  }
-}
-
-#define COLUMN_MASK(x) (((x)>31) ? 0xffffffff : ((u32)1<<(x)))
-
-/*
-** This function is called before generating code to update or delete a 
-** row contained in table pTab.
-*/
-SQLITE_PRIVATE u32 tdsqlite3FkOldmask(
-  Parse *pParse,                  /* Parse context */
-  Table *pTab                     /* Table being modified */
-){
-  u32 mask = 0;
-  if( pParse->db->flags&SQLITE_ForeignKeys ){
-    FKey *p;
-    int i;
-    for(p=pTab->pFKey; p; p=p->pNextFrom){
-      for(i=0; i<p->nCol; i++) mask |= COLUMN_MASK(p->aCol[i].iFrom);
-    }
-    for(p=tdsqlite3FkReferences(pTab); p; p=p->pNextTo){
-      Index *pIdx = 0;
-      tdsqlite3FkLocateIndex(pParse, pTab, p, &pIdx, 0);
-      if( pIdx ){
-        for(i=0; i<pIdx->nKeyCol; i++){
-          assert( pIdx->aiColumn[i]>=0 );
-          mask |= COLUMN_MASK(pIdx->aiColumn[i]);
-        }
-      }
-    }
-  }
-  return mask;
-}
-
-
-/*
-** This function is called before generating code to update or delete a 
-** row contained in table pTab. If the operation is a DELETE, then
-** parameter aChange is passed a NULL value. For an UPDATE, aChange points
-** to an array of size N, where N is the number of columns in table pTab.
-** If the i'th column is not modified by the UPDATE, then the corresponding 
-** entry in the aChange[] array is set to -1. If the column is modified,
-** the value is 0 or greater. Parameter chngRowid is set to true if the
-** UPDATE statement modifies the rowid fields of the table.
-**
-** If any foreign key processing will be required, this function returns
-** non-zero. If there is no foreign key related processing, this function 
-** returns zero.
-**
-** For an UPDATE, this function returns 2 if:
-**
-**   * There are any FKs for which pTab is the child and the parent table, or
-**   * the UPDATE modifies one or more parent keys for which the action is
-**     not "NO ACTION" (i.e. is CASCADE, SET DEFAULT or SET NULL).
-**
-** Or, assuming some other foreign key processing is required, 1.
-*/
-SQLITE_PRIVATE int tdsqlite3FkRequired(
-  Parse *pParse,                  /* Parse context */
-  Table *pTab,                    /* Table being modified */
-  int *aChange,                   /* Non-NULL for UPDATE operations */
-  int chngRowid                   /* True for UPDATE that affects rowid */
-){
-  int eRet = 0;
-  if( pParse->db->flags&SQLITE_ForeignKeys ){
-    if( !aChange ){
-      /* A DELETE operation. Foreign key processing is required if the 
-      ** table in question is either the child or parent table for any 
-      ** foreign key constraint.  */
-      eRet = (tdsqlite3FkReferences(pTab) || pTab->pFKey);
-    }else{
-      /* This is an UPDATE. Foreign key processing is only required if the
-      ** operation modifies one or more child or parent key columns. */
-      FKey *p;
-
-      /* Check if any child key columns are being modified. */
-      for(p=pTab->pFKey; p; p=p->pNextFrom){
-        if( 0==tdsqlite3_stricmp(pTab->zName, p->zTo) ) return 2;
-        if( fkChildIsModified(pTab, p, aChange, chngRowid) ){
-          eRet = 1;
-        }
-      }
-
-      /* Check if any parent key columns are being modified. */
-      for(p=tdsqlite3FkReferences(pTab); p; p=p->pNextTo){
-        if( fkParentIsModified(pTab, p, aChange, chngRowid) ){
-          if( p->aAction[1]!=OE_None ) return 2;
-          eRet = 1;
-        }
-      }
-    }
-  }
-  return eRet;
-}
-
-/*
-** This function is called when an UPDATE or DELETE operation is being 
-** compiled on table pTab, which is the parent table of foreign-key pFKey.
-** If the current operation is an UPDATE, then the pChanges parameter is
-** passed a pointer to the list of columns being modified. If it is a
-** DELETE, pChanges is passed a NULL pointer.
-**
-** It returns a pointer to a Trigger structure containing a trigger
-** equivalent to the ON UPDATE or ON DELETE action specified by pFKey.
-** If the action is "NO ACTION" or "RESTRICT", then a NULL pointer is
-** returned (these actions require no special handling by the triggers
-** sub-system, code for them is created by fkScanChildren()).
-**
-** For example, if pFKey is the foreign key and pTab is table "p" in 
-** the following schema:
-**
-**   CREATE TABLE p(pk PRIMARY KEY);
-**   CREATE TABLE c(ck REFERENCES p ON DELETE CASCADE);
-**
-** then the returned trigger structure is equivalent to:
-**
-**   CREATE TRIGGER ... DELETE ON p BEGIN
-**     DELETE FROM c WHERE ck = old.pk;
-**   END;
-**
-** The returned pointer is cached as part of the foreign key object. It
-** is eventually freed along with the rest of the foreign key object by 
-** tdsqlite3FkDelete().
-*/
-static Trigger *fkActionTrigger(
-  Parse *pParse,                  /* Parse context */
-  Table *pTab,                    /* Table being updated or deleted from */
-  FKey *pFKey,                    /* Foreign key to get action for */
-  ExprList *pChanges              /* Change-list for UPDATE, NULL for DELETE */
-){
-  tdsqlite3 *db = pParse->db;       /* Database handle */
-  int action;                     /* One of OE_None, OE_Cascade etc. */
-  Trigger *pTrigger;              /* Trigger definition to return */
-  int iAction = (pChanges!=0);    /* 1 for UPDATE, 0 for DELETE */
-
-  action = pFKey->aAction[iAction];
-  if( action==OE_Restrict && (db->flags & SQLITE_DeferFKs) ){
-    return 0;
-  }
-  pTrigger = pFKey->apTrigger[iAction];
-
-  if( action!=OE_None && !pTrigger ){
-    char const *zFrom;            /* Name of child table */
-    int nFrom;                    /* Length in bytes of zFrom */
-    Index *pIdx = 0;              /* Parent key index for this FK */
-    int *aiCol = 0;               /* child table cols -> parent key cols */
-    TriggerStep *pStep = 0;        /* First (only) step of trigger program */
-    Expr *pWhere = 0;             /* WHERE clause of trigger step */
-    ExprList *pList = 0;          /* Changes list if ON UPDATE CASCADE */
-    Select *pSelect = 0;          /* If RESTRICT, "SELECT RAISE(...)" */
-    int i;                        /* Iterator variable */
-    Expr *pWhen = 0;              /* WHEN clause for the trigger */
-
-    if( tdsqlite3FkLocateIndex(pParse, pTab, pFKey, &pIdx, &aiCol) ) return 0;
-    assert( aiCol || pFKey->nCol==1 );
-
-    for(i=0; i<pFKey->nCol; i++){
-      Token tOld = { "old", 3 };  /* Literal "old" token */
-      Token tNew = { "new", 3 };  /* Literal "new" token */
-      Token tFromCol;             /* Name of column in child table */
-      Token tToCol;               /* Name of column in parent table */
-      int iFromCol;               /* Idx of column in child table */
-      Expr *pEq;                  /* tFromCol = OLD.tToCol */
-
-      iFromCol = aiCol ? aiCol[i] : pFKey->aCol[0].iFrom;
-      assert( iFromCol>=0 );
-      assert( pIdx!=0 || (pTab->iPKey>=0 && pTab->iPKey<pTab->nCol) );
-      assert( pIdx==0 || pIdx->aiColumn[i]>=0 );
-      tdsqlite3TokenInit(&tToCol,
-                   pTab->aCol[pIdx ? pIdx->aiColumn[i] : pTab->iPKey].zName);
-      tdsqlite3TokenInit(&tFromCol, pFKey->pFrom->aCol[iFromCol].zName);
-
-      /* Create the expression "OLD.zToCol = zFromCol". It is important
-      ** that the "OLD.zToCol" term is on the LHS of the = operator, so
-      ** that the affinity and collation sequence associated with the
-      ** parent table are used for the comparison. */
-      pEq = tdsqlite3PExpr(pParse, TK_EQ,
-          tdsqlite3PExpr(pParse, TK_DOT, 
-            tdsqlite3ExprAlloc(db, TK_ID, &tOld, 0),
-            tdsqlite3ExprAlloc(db, TK_ID, &tToCol, 0)),
-          tdsqlite3ExprAlloc(db, TK_ID, &tFromCol, 0)
-      );
-      pWhere = tdsqlite3ExprAnd(pParse, pWhere, pEq);
-
-      /* For ON UPDATE, construct the next term of the WHEN clause.
-      ** The final WHEN clause will be like this:
-      **
-      **    WHEN NOT(old.col1 IS new.col1 AND ... AND old.colN IS new.colN)
-      */
-      if( pChanges ){
-        pEq = tdsqlite3PExpr(pParse, TK_IS,
-            tdsqlite3PExpr(pParse, TK_DOT, 
-              tdsqlite3ExprAlloc(db, TK_ID, &tOld, 0),
-              tdsqlite3ExprAlloc(db, TK_ID, &tToCol, 0)),
-            tdsqlite3PExpr(pParse, TK_DOT, 
-              tdsqlite3ExprAlloc(db, TK_ID, &tNew, 0),
-              tdsqlite3ExprAlloc(db, TK_ID, &tToCol, 0))
-            );
-        pWhen = tdsqlite3ExprAnd(pParse, pWhen, pEq);
-      }
-  
-      if( action!=OE_Restrict && (action!=OE_Cascade || pChanges) ){
-        Expr *pNew;
-        if( action==OE_Cascade ){
-          pNew = tdsqlite3PExpr(pParse, TK_DOT, 
-            tdsqlite3ExprAlloc(db, TK_ID, &tNew, 0),
-            tdsqlite3ExprAlloc(db, TK_ID, &tToCol, 0));
-        }else if( action==OE_SetDflt ){
-          Column *pCol = pFKey->pFrom->aCol + iFromCol;
-          Expr *pDflt;
-          if( pCol->colFlags & COLFLAG_GENERATED ){
-            testcase( pCol->colFlags & COLFLAG_VIRTUAL );
-            testcase( pCol->colFlags & COLFLAG_STORED );
-            pDflt = 0;
-          }else{
-            pDflt = pCol->pDflt;
-          }
-          if( pDflt ){
-            pNew = tdsqlite3ExprDup(db, pDflt, 0);
-          }else{
-            pNew = tdsqlite3ExprAlloc(db, TK_NULL, 0, 0);
-          }
-        }else{
-          pNew = tdsqlite3ExprAlloc(db, TK_NULL, 0, 0);
-        }
-        pList = tdsqlite3ExprListAppend(pParse, pList, pNew);
-        tdsqlite3ExprListSetName(pParse, pList, &tFromCol, 0);
-      }
-    }
-    tdsqlite3DbFree(db, aiCol);
-
-    zFrom = pFKey->pFrom->zName;
-    nFrom = tdsqlite3Strlen30(zFrom);
-
-    if( action==OE_Restrict ){
-      Token tFrom;
-      Expr *pRaise; 
-
-      tFrom.z = zFrom;
-      tFrom.n = nFrom;
-      pRaise = tdsqlite3Expr(db, TK_RAISE, "FOREIGN KEY constraint failed");
-      if( pRaise ){
-        pRaise->affExpr = OE_Abort;
-      }
-      pSelect = tdsqlite3SelectNew(pParse, 
-          tdsqlite3ExprListAppend(pParse, 0, pRaise),
-          tdsqlite3SrcListAppend(pParse, 0, &tFrom, 0),
-          pWhere,
-          0, 0, 0, 0, 0
-      );
-      pWhere = 0;
-    }
-
-    /* Disable lookaside memory allocation */
-    DisableLookaside;
-
-    pTrigger = (Trigger *)tdsqlite3DbMallocZero(db, 
-        sizeof(Trigger) +         /* struct Trigger */
-        sizeof(TriggerStep) +     /* Single step in trigger program */
-        nFrom + 1                 /* Space for pStep->zTarget */
-    );
-    if( pTrigger ){
-      pStep = pTrigger->step_list = (TriggerStep *)&pTrigger[1];
-      pStep->zTarget = (char *)&pStep[1];
-      memcpy((char *)pStep->zTarget, zFrom, nFrom);
-  
-      pStep->pWhere = tdsqlite3ExprDup(db, pWhere, EXPRDUP_REDUCE);
-      pStep->pExprList = tdsqlite3ExprListDup(db, pList, EXPRDUP_REDUCE);
-      pStep->pSelect = tdsqlite3SelectDup(db, pSelect, EXPRDUP_REDUCE);
-      if( pWhen ){
-        pWhen = tdsqlite3PExpr(pParse, TK_NOT, pWhen, 0);
-        pTrigger->pWhen = tdsqlite3ExprDup(db, pWhen, EXPRDUP_REDUCE);
-      }
-    }
-
-    /* Re-enable the lookaside buffer, if it was disabled earlier. */
-    EnableLookaside;
-
-    tdsqlite3ExprDelete(db, pWhere);
-    tdsqlite3ExprDelete(db, pWhen);
-    tdsqlite3ExprListDelete(db, pList);
-    tdsqlite3SelectDelete(db, pSelect);
-    if( db->mallocFailed==1 ){
-      fkTriggerDelete(db, pTrigger);
-      return 0;
-    }
-    assert( pStep!=0 );
-    assert( pTrigger!=0 );
-
-    switch( action ){
-      case OE_Restrict:
-        pStep->op = TK_SELECT; 
-        break;
-      case OE_Cascade: 
-        if( !pChanges ){ 
-          pStep->op = TK_DELETE; 
-          break; 
-        }
-      default:
-        pStep->op = TK_UPDATE;
-    }
-    pStep->pTrig = pTrigger;
-    pTrigger->pSchema = pTab->pSchema;
-    pTrigger->pTabSchema = pTab->pSchema;
-    pFKey->apTrigger[iAction] = pTrigger;
-    pTrigger->op = (pChanges ? TK_UPDATE : TK_DELETE);
-  }
-
-  return pTrigger;
-}
-
-/*
-** This function is called when deleting or updating a row to implement
-** any required CASCADE, SET NULL or SET DEFAULT actions.
-*/
-SQLITE_PRIVATE void tdsqlite3FkActions(
-  Parse *pParse,                  /* Parse context */
-  Table *pTab,                    /* Table being updated or deleted from */
-  ExprList *pChanges,             /* Change-list for UPDATE, NULL for DELETE */
-  int regOld,                     /* Address of array containing old row */
-  int *aChange,                   /* Array indicating UPDATEd columns (or 0) */
-  int bChngRowid                  /* True if rowid is UPDATEd */
-){
-  /* If foreign-key support is enabled, iterate through all FKs that 
-  ** refer to table pTab. If there is an action associated with the FK 
-  ** for this operation (either update or delete), invoke the associated 
-  ** trigger sub-program.  */
-  if( pParse->db->flags&SQLITE_ForeignKeys ){
-    FKey *pFKey;                  /* Iterator variable */
-    for(pFKey = tdsqlite3FkReferences(pTab); pFKey; pFKey=pFKey->pNextTo){
-      if( aChange==0 || fkParentIsModified(pTab, pFKey, aChange, bChngRowid) ){
-        Trigger *pAct = fkActionTrigger(pParse, pTab, pFKey, pChanges);
-        if( pAct ){
-          tdsqlite3CodeRowTriggerDirect(pParse, pAct, pTab, regOld, OE_Abort, 0);
-        }
-      }
-    }
-  }
-}
-
-#endif /* ifndef SQLITE_OMIT_TRIGGER */
-
-/*
-** Free all memory associated with foreign key definitions attached to
-** table pTab. Remove the deleted foreign keys from the Schema.fkeyHash
-** hash table.
-*/
-SQLITE_PRIVATE void tdsqlite3FkDelete(tdsqlite3 *db, Table *pTab){
-  FKey *pFKey;                    /* Iterator variable */
-  FKey *pNext;                    /* Copy of pFKey->pNextFrom */
-
-  assert( db==0 || IsVirtual(pTab)
-         || tdsqlite3SchemaMutexHeld(db, 0, pTab->pSchema) );
-  for(pFKey=pTab->pFKey; pFKey; pFKey=pNext){
-
-    /* Remove the FK from the fkeyHash hash table. */
-    if( !db || db->pnBytesFreed==0 ){
-      if( pFKey->pPrevTo ){
-        pFKey->pPrevTo->pNextTo = pFKey->pNextTo;
-      }else{
-        void *p = (void *)pFKey->pNextTo;
-        const char *z = (p ? pFKey->pNextTo->zTo : pFKey->zTo);
-        tdsqlite3HashInsert(&pTab->pSchema->fkeyHash, z, p);
-      }
-      if( pFKey->pNextTo ){
-        pFKey->pNextTo->pPrevTo = pFKey->pPrevTo;
-      }
-    }
-
-    /* EV: R-30323-21917 Each foreign key constraint in SQLite is
-    ** classified as either immediate or deferred.
-    */
-    assert( pFKey->isDeferred==0 || pFKey->isDeferred==1 );
-
-    /* Delete any triggers created to implement actions for this FK. */
-#ifndef SQLITE_OMIT_TRIGGER
-    fkTriggerDelete(db, pFKey->apTrigger[0]);
-    fkTriggerDelete(db, pFKey->apTrigger[1]);
-#endif
-
-    pNext = pFKey->pNextFrom;
-    tdsqlite3DbFree(db, pFKey);
-  }
-}
-#endif /* ifndef SQLITE_OMIT_FOREIGN_KEY */
-
-/************** End of fkey.c ************************************************/
-/************** Begin file insert.c ******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains C code routines that are called by the parser
-** to handle INSERT statements in SQLite.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** Generate code that will 
-**
-**   (1) acquire a lock for table pTab then
-**   (2) open pTab as cursor iCur.
-**
-** If pTab is a WITHOUT ROWID table, then it is the PRIMARY KEY index
-** for that table that is actually opened.
-*/
-SQLITE_PRIVATE void tdsqlite3OpenTable(
-  Parse *pParse,  /* Generate code into this VDBE */
-  int iCur,       /* The cursor number of the table */
-  int iDb,        /* The database index in sqlite3.aDb[] */
-  Table *pTab,    /* The table to be opened */
-  int opcode      /* OP_OpenRead or OP_OpenWrite */
-){
-  Vdbe *v;
-  assert( !IsVirtual(pTab) );
-  v = tdsqlite3GetVdbe(pParse);
-  assert( opcode==OP_OpenWrite || opcode==OP_OpenRead );
-  tdsqlite3TableLock(pParse, iDb, pTab->tnum, 
-                   (opcode==OP_OpenWrite)?1:0, pTab->zName);
-  if( HasRowid(pTab) ){
-    tdsqlite3VdbeAddOp4Int(v, opcode, iCur, pTab->tnum, iDb, pTab->nNVCol);
-    VdbeComment((v, "%s", pTab->zName));
-  }else{
-    Index *pPk = tdsqlite3PrimaryKeyIndex(pTab);
-    assert( pPk!=0 );
-    assert( pPk->tnum==pTab->tnum );
-    tdsqlite3VdbeAddOp3(v, opcode, iCur, pPk->tnum, iDb);
-    tdsqlite3VdbeSetP4KeyInfo(pParse, pPk);
-    VdbeComment((v, "%s", pTab->zName));
-  }
-}
-
-/*
-** Return a pointer to the column affinity string associated with index
-** pIdx. A column affinity string has one character for each column in 
-** the table, according to the affinity of the column:
-**
-**  Character      Column affinity
-**  ------------------------------
-**  'A'            BLOB
-**  'B'            TEXT
-**  'C'            NUMERIC
-**  'D'            INTEGER
-**  'F'            REAL
-**
-** An extra 'D' is appended to the end of the string to cover the
-** rowid that appears as the last column in every index.
-**
-** Memory for the buffer containing the column index affinity string
-** is managed along with the rest of the Index structure. It will be
-** released when tdsqlite3DeleteIndex() is called.
-*/
-SQLITE_PRIVATE const char *tdsqlite3IndexAffinityStr(tdsqlite3 *db, Index *pIdx){
-  if( !pIdx->zColAff ){
-    /* The first time a column affinity string for a particular index is
-    ** required, it is allocated and populated here. It is then stored as
-    ** a member of the Index structure for subsequent use.
-    **
-    ** The column affinity string will eventually be deleted by
-    ** sqliteDeleteIndex() when the Index structure itself is cleaned
-    ** up.
-    */
-    int n;
-    Table *pTab = pIdx->pTable;
-    pIdx->zColAff = (char *)tdsqlite3DbMallocRaw(0, pIdx->nColumn+1);
-    if( !pIdx->zColAff ){
-      tdsqlite3OomFault(db);
-      return 0;
-    }
-    for(n=0; n<pIdx->nColumn; n++){
-      i16 x = pIdx->aiColumn[n];
-      char aff;
-      if( x>=0 ){
-        aff = pTab->aCol[x].affinity;
-      }else if( x==XN_ROWID ){
-        aff = SQLITE_AFF_INTEGER;
-      }else{
-        assert( x==XN_EXPR );
-        assert( pIdx->aColExpr!=0 );
-        aff = tdsqlite3ExprAffinity(pIdx->aColExpr->a[n].pExpr);
-      }
-      if( aff<SQLITE_AFF_BLOB ) aff = SQLITE_AFF_BLOB;
-      if( aff>SQLITE_AFF_NUMERIC) aff = SQLITE_AFF_NUMERIC;
-      pIdx->zColAff[n] = aff;
-    }
-    pIdx->zColAff[n] = 0;
-  }
- 
-  return pIdx->zColAff;
-}
-
-/*
-** Compute the affinity string for table pTab, if it has not already been
-** computed.  As an optimization, omit trailing SQLITE_AFF_BLOB affinities.
-**
-** If the affinity exists (if it is no entirely SQLITE_AFF_BLOB values) and
-** if iReg>0 then code an OP_Affinity opcode that will set the affinities
-** for register iReg and following.  Or if affinities exists and iReg==0,
-** then just set the P4 operand of the previous opcode (which should  be
-** an OP_MakeRecord) to the affinity string.
-**
-** A column affinity string has one character per column:
-**
-**  Character      Column affinity
-**  ------------------------------
-**  'A'            BLOB
-**  'B'            TEXT
-**  'C'            NUMERIC
-**  'D'            INTEGER
-**  'E'            REAL
-*/
-SQLITE_PRIVATE void tdsqlite3TableAffinity(Vdbe *v, Table *pTab, int iReg){
-  int i, j;
-  char *zColAff = pTab->zColAff;
-  if( zColAff==0 ){
-    tdsqlite3 *db = tdsqlite3VdbeDb(v);
-    zColAff = (char *)tdsqlite3DbMallocRaw(0, pTab->nCol+1);
-    if( !zColAff ){
-      tdsqlite3OomFault(db);
-      return;
-    }
-
-    for(i=j=0; i<pTab->nCol; i++){
-      assert( pTab->aCol[i].affinity!=0 );
-      if( (pTab->aCol[i].colFlags & COLFLAG_VIRTUAL)==0 ){
-        zColAff[j++] = pTab->aCol[i].affinity;
-      }
-    }
-    do{
-      zColAff[j--] = 0;
-    }while( j>=0 && zColAff[j]<=SQLITE_AFF_BLOB );
-    pTab->zColAff = zColAff;
-  }
-  assert( zColAff!=0 );
-  i = tdsqlite3Strlen30NN(zColAff);
-  if( i ){
-    if( iReg ){
-      tdsqlite3VdbeAddOp4(v, OP_Affinity, iReg, i, 0, zColAff, i);
-    }else{
-      tdsqlite3VdbeChangeP4(v, -1, zColAff, i);
-    }
-  }
-}
-
-/*
-** Return non-zero if the table pTab in database iDb or any of its indices
-** have been opened at any point in the VDBE program. This is used to see if 
-** a statement of the form  "INSERT INTO <iDb, pTab> SELECT ..." can 
-** run without using a temporary table for the results of the SELECT. 
-*/
-static int readsTable(Parse *p, int iDb, Table *pTab){
-  Vdbe *v = tdsqlite3GetVdbe(p);
-  int i;
-  int iEnd = tdsqlite3VdbeCurrentAddr(v);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  VTable *pVTab = IsVirtual(pTab) ? tdsqlite3GetVTable(p->db, pTab) : 0;
-#endif
-
-  for(i=1; i<iEnd; i++){
-    VdbeOp *pOp = tdsqlite3VdbeGetOp(v, i);
-    assert( pOp!=0 );
-    if( pOp->opcode==OP_OpenRead && pOp->p3==iDb ){
-      Index *pIndex;
-      int tnum = pOp->p2;
-      if( tnum==pTab->tnum ){
-        return 1;
-      }
-      for(pIndex=pTab->pIndex; pIndex; pIndex=pIndex->pNext){
-        if( tnum==pIndex->tnum ){
-          return 1;
-        }
-      }
-    }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    if( pOp->opcode==OP_VOpen && pOp->p4.pVtab==pVTab ){
-      assert( pOp->p4.pVtab!=0 );
-      assert( pOp->p4type==P4_VTAB );
-      return 1;
-    }
-#endif
-  }
-  return 0;
-}
-
-/* This walker callback will compute the union of colFlags flags for all
-** referenced columns in a CHECK constraint or generated column expression.
-*/
-static int exprColumnFlagUnion(Walker *pWalker, Expr *pExpr){
-  if( pExpr->op==TK_COLUMN && pExpr->iColumn>=0 ){
-    assert( pExpr->iColumn < pWalker->u.pTab->nCol );
-    pWalker->eCode |= pWalker->u.pTab->aCol[pExpr->iColumn].colFlags;
-  }
-  return WRC_Continue;
-}
-
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-/*
-** All regular columns for table pTab have been puts into registers
-** starting with iRegStore.  The registers that correspond to STORED
-** or VIRTUAL columns have not yet been initialized.  This routine goes
-** back and computes the values for those columns based on the previously
-** computed normal columns.
-*/
-SQLITE_PRIVATE void tdsqlite3ComputeGeneratedColumns(
-  Parse *pParse,    /* Parsing context */
-  int iRegStore,    /* Register holding the first column */
-  Table *pTab       /* The table */
-){
-  int i;
-  Walker w;
-  Column *pRedo;
-  int eProgress;
-  VdbeOp *pOp;
-
-  assert( pTab->tabFlags & TF_HasGenerated );
-  testcase( pTab->tabFlags & TF_HasVirtual );
-  testcase( pTab->tabFlags & TF_HasStored );
-
-  /* Before computing generated columns, first go through and make sure
-  ** that appropriate affinity has been applied to the regular columns
-  */
-  tdsqlite3TableAffinity(pParse->pVdbe, pTab, iRegStore);
-  if( (pTab->tabFlags & TF_HasStored)!=0
-   && (pOp = tdsqlite3VdbeGetOp(pParse->pVdbe,-1))->opcode==OP_Affinity
-  ){
-    /* Change the OP_Affinity argument to '@' (NONE) for all stored
-    ** columns.  '@' is the no-op affinity and those columns have not
-    ** yet been computed. */
-    int ii, jj;
-    char *zP4 = pOp->p4.z;
-    assert( zP4!=0 );
-    assert( pOp->p4type==P4_DYNAMIC );
-    for(ii=jj=0; zP4[jj]; ii++){
-      if( pTab->aCol[ii].colFlags & COLFLAG_VIRTUAL ){
-        continue;
-      }
-      if( pTab->aCol[ii].colFlags & COLFLAG_STORED ){
-        zP4[jj] = SQLITE_AFF_NONE;
-      }
-      jj++;
-    }
-  }
-
-  /* Because there can be multiple generated columns that refer to one another,
-  ** this is a two-pass algorithm.  On the first pass, mark all generated
-  ** columns as "not available".
-  */
-  for(i=0; i<pTab->nCol; i++){
-    if( pTab->aCol[i].colFlags & COLFLAG_GENERATED ){
-      testcase( pTab->aCol[i].colFlags & COLFLAG_VIRTUAL );
-      testcase( pTab->aCol[i].colFlags & COLFLAG_STORED );
-      pTab->aCol[i].colFlags |= COLFLAG_NOTAVAIL;
-    }
-  }
-
-  w.u.pTab = pTab;
-  w.xExprCallback = exprColumnFlagUnion;
-  w.xSelectCallback = 0;
-  w.xSelectCallback2 = 0;
-
-  /* On the second pass, compute the value of each NOT-AVAILABLE column.
-  ** Companion code in the TK_COLUMN case of tdsqlite3ExprCodeTarget() will
-  ** compute dependencies and mark remove the COLSPAN_NOTAVAIL mark, as
-  ** they are needed.
-  */
-  pParse->iSelfTab = -iRegStore;
-  do{
-    eProgress = 0;
-    pRedo = 0;
-    for(i=0; i<pTab->nCol; i++){
-      Column *pCol = pTab->aCol + i;
-      if( (pCol->colFlags & COLFLAG_NOTAVAIL)!=0 ){
-        int x;
-        pCol->colFlags |= COLFLAG_BUSY;
-        w.eCode = 0;
-        tdsqlite3WalkExpr(&w, pCol->pDflt);
-        pCol->colFlags &= ~COLFLAG_BUSY;
-        if( w.eCode & COLFLAG_NOTAVAIL ){
-          pRedo = pCol;
-          continue;
-        }
-        eProgress = 1;
-        assert( pCol->colFlags & COLFLAG_GENERATED );
-        x = tdsqlite3TableColumnToStorage(pTab, i) + iRegStore;
-        tdsqlite3ExprCodeGeneratedColumn(pParse, pCol, x);
-        pCol->colFlags &= ~COLFLAG_NOTAVAIL;
-      }
-    }
-  }while( pRedo && eProgress );
-  if( pRedo ){
-    tdsqlite3ErrorMsg(pParse, "generated column loop on \"%s\"", pRedo->zName);
-  }
-  pParse->iSelfTab = 0;
-}
-#endif /* SQLITE_OMIT_GENERATED_COLUMNS */
-
-
-#ifndef SQLITE_OMIT_AUTOINCREMENT
-/*
-** Locate or create an AutoincInfo structure associated with table pTab
-** which is in database iDb.  Return the register number for the register
-** that holds the maximum rowid.  Return zero if pTab is not an AUTOINCREMENT
-** table.  (Also return zero when doing a VACUUM since we do not want to
-** update the AUTOINCREMENT counters during a VACUUM.)
-**
-** There is at most one AutoincInfo structure per table even if the
-** same table is autoincremented multiple times due to inserts within
-** triggers.  A new AutoincInfo structure is created if this is the
-** first use of table pTab.  On 2nd and subsequent uses, the original
-** AutoincInfo structure is used.
-**
-** Four consecutive registers are allocated:
-**
-**   (1)  The name of the pTab table.
-**   (2)  The maximum ROWID of pTab.
-**   (3)  The rowid in sqlite_sequence of pTab
-**   (4)  The original value of the max ROWID in pTab, or NULL if none
-**
-** The 2nd register is the one that is returned.  That is all the
-** insert routine needs to know about.
-*/
-static int autoIncBegin(
-  Parse *pParse,      /* Parsing context */
-  int iDb,            /* Index of the database holding pTab */
-  Table *pTab         /* The table we are writing to */
-){
-  int memId = 0;      /* Register holding maximum rowid */
-  assert( pParse->db->aDb[iDb].pSchema!=0 );
-  if( (pTab->tabFlags & TF_Autoincrement)!=0
-   && (pParse->db->mDbFlags & DBFLAG_Vacuum)==0
-  ){
-    Parse *pToplevel = tdsqlite3ParseToplevel(pParse);
-    AutoincInfo *pInfo;
-    Table *pSeqTab = pParse->db->aDb[iDb].pSchema->pSeqTab;
-
-    /* Verify that the sqlite_sequence table exists and is an ordinary
-    ** rowid table with exactly two columns.
-    ** Ticket d8dc2b3a58cd5dc2918a1d4acb 2018-05-23 */
-    if( pSeqTab==0
-     || !HasRowid(pSeqTab)
-     || IsVirtual(pSeqTab)
-     || pSeqTab->nCol!=2
-    ){
-      pParse->nErr++;
-      pParse->rc = SQLITE_CORRUPT_SEQUENCE;
-      return 0;
-    }
-
-    pInfo = pToplevel->pAinc;
-    while( pInfo && pInfo->pTab!=pTab ){ pInfo = pInfo->pNext; }
-    if( pInfo==0 ){
-      pInfo = tdsqlite3DbMallocRawNN(pParse->db, sizeof(*pInfo));
-      if( pInfo==0 ) return 0;
-      pInfo->pNext = pToplevel->pAinc;
-      pToplevel->pAinc = pInfo;
-      pInfo->pTab = pTab;
-      pInfo->iDb = iDb;
-      pToplevel->nMem++;                  /* Register to hold name of table */
-      pInfo->regCtr = ++pToplevel->nMem;  /* Max rowid register */
-      pToplevel->nMem +=2;       /* Rowid in sqlite_sequence + orig max val */
-    }
-    memId = pInfo->regCtr;
-  }
-  return memId;
-}
-
-/*
-** This routine generates code that will initialize all of the
-** register used by the autoincrement tracker.  
-*/
-SQLITE_PRIVATE void tdsqlite3AutoincrementBegin(Parse *pParse){
-  AutoincInfo *p;            /* Information about an AUTOINCREMENT */
-  tdsqlite3 *db = pParse->db;  /* The database connection */
-  Db *pDb;                   /* Database only autoinc table */
-  int memId;                 /* Register holding max rowid */
-  Vdbe *v = pParse->pVdbe;   /* VDBE under construction */
-
-  /* This routine is never called during trigger-generation.  It is
-  ** only called from the top-level */
-  assert( pParse->pTriggerTab==0 );
-  assert( tdsqlite3IsToplevel(pParse) );
-
-  assert( v );   /* We failed long ago if this is not so */
-  for(p = pParse->pAinc; p; p = p->pNext){
-    static const int iLn = VDBE_OFFSET_LINENO(2);
-    static const VdbeOpList autoInc[] = {
-      /* 0  */ {OP_Null,    0,  0, 0},
-      /* 1  */ {OP_Rewind,  0, 10, 0},
-      /* 2  */ {OP_Column,  0,  0, 0},
-      /* 3  */ {OP_Ne,      0,  9, 0},
-      /* 4  */ {OP_Rowid,   0,  0, 0},
-      /* 5  */ {OP_Column,  0,  1, 0},
-      /* 6  */ {OP_AddImm,  0,  0, 0},
-      /* 7  */ {OP_Copy,    0,  0, 0},
-      /* 8  */ {OP_Goto,    0, 11, 0},
-      /* 9  */ {OP_Next,    0,  2, 0},
-      /* 10 */ {OP_Integer, 0,  0, 0},
-      /* 11 */ {OP_Close,   0,  0, 0} 
-    };
-    VdbeOp *aOp;
-    pDb = &db->aDb[p->iDb];
-    memId = p->regCtr;
-    assert( tdsqlite3SchemaMutexHeld(db, 0, pDb->pSchema) );
-    tdsqlite3OpenTable(pParse, 0, p->iDb, pDb->pSchema->pSeqTab, OP_OpenRead);
-    tdsqlite3VdbeLoadString(v, memId-1, p->pTab->zName);
-    aOp = tdsqlite3VdbeAddOpList(v, ArraySize(autoInc), autoInc, iLn);
-    if( aOp==0 ) break;
-    aOp[0].p2 = memId;
-    aOp[0].p3 = memId+2;
-    aOp[2].p3 = memId;
-    aOp[3].p1 = memId-1;
-    aOp[3].p3 = memId;
-    aOp[3].p5 = SQLITE_JUMPIFNULL;
-    aOp[4].p2 = memId+1;
-    aOp[5].p3 = memId;
-    aOp[6].p1 = memId;
-    aOp[7].p2 = memId+2;
-    aOp[7].p1 = memId;
-    aOp[10].p2 = memId;
-    if( pParse->nTab==0 ) pParse->nTab = 1;
-  }
-}
-
-/*
-** Update the maximum rowid for an autoincrement calculation.
-**
-** This routine should be called when the regRowid register holds a
-** new rowid that is about to be inserted.  If that new rowid is
-** larger than the maximum rowid in the memId memory cell, then the
-** memory cell is updated.
-*/
-static void autoIncStep(Parse *pParse, int memId, int regRowid){
-  if( memId>0 ){
-    tdsqlite3VdbeAddOp2(pParse->pVdbe, OP_MemMax, memId, regRowid);
-  }
-}
-
-/*
-** This routine generates the code needed to write autoincrement
-** maximum rowid values back into the sqlite_sequence register.
-** Every statement that might do an INSERT into an autoincrement
-** table (either directly or through triggers) needs to call this
-** routine just before the "exit" code.
-*/
-static SQLITE_NOINLINE void autoIncrementEnd(Parse *pParse){
-  AutoincInfo *p;
-  Vdbe *v = pParse->pVdbe;
-  tdsqlite3 *db = pParse->db;
-
-  assert( v );
-  for(p = pParse->pAinc; p; p = p->pNext){
-    static const int iLn = VDBE_OFFSET_LINENO(2);
-    static const VdbeOpList autoIncEnd[] = {
-      /* 0 */ {OP_NotNull,     0, 2, 0},
-      /* 1 */ {OP_NewRowid,    0, 0, 0},
-      /* 2 */ {OP_MakeRecord,  0, 2, 0},
-      /* 3 */ {OP_Insert,      0, 0, 0},
-      /* 4 */ {OP_Close,       0, 0, 0}
-    };
-    VdbeOp *aOp;
-    Db *pDb = &db->aDb[p->iDb];
-    int iRec;
-    int memId = p->regCtr;
-
-    iRec = tdsqlite3GetTempReg(pParse);
-    assert( tdsqlite3SchemaMutexHeld(db, 0, pDb->pSchema) );
-    tdsqlite3VdbeAddOp3(v, OP_Le, memId+2, tdsqlite3VdbeCurrentAddr(v)+7, memId);
-    VdbeCoverage(v);
-    tdsqlite3OpenTable(pParse, 0, p->iDb, pDb->pSchema->pSeqTab, OP_OpenWrite);
-    aOp = tdsqlite3VdbeAddOpList(v, ArraySize(autoIncEnd), autoIncEnd, iLn);
-    if( aOp==0 ) break;
-    aOp[0].p1 = memId+1;
-    aOp[1].p2 = memId+1;
-    aOp[2].p1 = memId-1;
-    aOp[2].p3 = iRec;
-    aOp[3].p2 = iRec;
-    aOp[3].p3 = memId+1;
-    aOp[3].p5 = OPFLAG_APPEND;
-    tdsqlite3ReleaseTempReg(pParse, iRec);
-  }
-}
-SQLITE_PRIVATE void tdsqlite3AutoincrementEnd(Parse *pParse){
-  if( pParse->pAinc ) autoIncrementEnd(pParse);
-}
-#else
-/*
-** If SQLITE_OMIT_AUTOINCREMENT is defined, then the three routines
-** above are all no-ops
-*/
-# define autoIncBegin(A,B,C) (0)
-# define autoIncStep(A,B,C)
-#endif /* SQLITE_OMIT_AUTOINCREMENT */
-
-
-/* Forward declaration */
-static int xferOptimization(
-  Parse *pParse,        /* Parser context */
-  Table *pDest,         /* The table we are inserting into */
-  Select *pSelect,      /* A SELECT statement to use as the data source */
-  int onError,          /* How to handle constraint errors */
-  int iDbDest           /* The database of pDest */
-);
-
-/*
-** This routine is called to handle SQL of the following forms:
-**
-**    insert into TABLE (IDLIST) values(EXPRLIST),(EXPRLIST),...
-**    insert into TABLE (IDLIST) select
-**    insert into TABLE (IDLIST) default values
-**
-** The IDLIST following the table name is always optional.  If omitted,
-** then a list of all (non-hidden) columns for the table is substituted.
-** The IDLIST appears in the pColumn parameter.  pColumn is NULL if IDLIST
-** is omitted.
-**
-** For the pSelect parameter holds the values to be inserted for the
-** first two forms shown above.  A VALUES clause is really just short-hand
-** for a SELECT statement that omits the FROM clause and everything else
-** that follows.  If the pSelect parameter is NULL, that means that the
-** DEFAULT VALUES form of the INSERT statement is intended.
-**
-** The code generated follows one of four templates.  For a simple
-** insert with data coming from a single-row VALUES clause, the code executes
-** once straight down through.  Pseudo-code follows (we call this
-** the "1st template"):
-**
-**         open write cursor to <table> and its indices
-**         put VALUES clause expressions into registers
-**         write the resulting record into <table>
-**         cleanup
-**
-** The three remaining templates assume the statement is of the form
-**
-**   INSERT INTO <table> SELECT ...
-**
-** If the SELECT clause is of the restricted form "SELECT * FROM <table2>" -
-** in other words if the SELECT pulls all columns from a single table
-** and there is no WHERE or LIMIT or GROUP BY or ORDER BY clauses, and
-** if <table2> and <table1> are distinct tables but have identical
-** schemas, including all the same indices, then a special optimization
-** is invoked that copies raw records from <table2> over to <table1>.
-** See the xferOptimization() function for the implementation of this
-** template.  This is the 2nd template.
-**
-**         open a write cursor to <table>
-**         open read cursor on <table2>
-**         transfer all records in <table2> over to <table>
-**         close cursors
-**         foreach index on <table>
-**           open a write cursor on the <table> index
-**           open a read cursor on the corresponding <table2> index
-**           transfer all records from the read to the write cursors
-**           close cursors
-**         end foreach
-**
-** The 3rd template is for when the second template does not apply
-** and the SELECT clause does not read from <table> at any time.
-** The generated code follows this template:
-**
-**         X <- A
-**         goto B
-**      A: setup for the SELECT
-**         loop over the rows in the SELECT
-**           load values into registers R..R+n
-**           yield X
-**         end loop
-**         cleanup after the SELECT
-**         end-coroutine X
-**      B: open write cursor to <table> and its indices
-**      C: yield X, at EOF goto D
-**         insert the select result into <table> from R..R+n
-**         goto C
-**      D: cleanup
-**
-** The 4th template is used if the insert statement takes its
-** values from a SELECT but the data is being inserted into a table
-** that is also read as part of the SELECT.  In the third form,
-** we have to use an intermediate table to store the results of
-** the select.  The template is like this:
-**
-**         X <- A
-**         goto B
-**      A: setup for the SELECT
-**         loop over the tables in the SELECT
-**           load value into register R..R+n
-**           yield X
-**         end loop
-**         cleanup after the SELECT
-**         end co-routine R
-**      B: open temp table
-**      L: yield X, at EOF goto M
-**         insert row from R..R+n into temp table
-**         goto L
-**      M: open write cursor to <table> and its indices
-**         rewind temp table
-**      C: loop over rows of intermediate table
-**           transfer values form intermediate table into <table>
-**         end loop
-**      D: cleanup
-*/
-SQLITE_PRIVATE void tdsqlite3Insert(
-  Parse *pParse,        /* Parser context */
-  SrcList *pTabList,    /* Name of table into which we are inserting */
-  Select *pSelect,      /* A SELECT statement to use as the data source */
-  IdList *pColumn,      /* Column names corresponding to IDLIST, or NULL. */
-  int onError,          /* How to handle constraint errors */
-  Upsert *pUpsert       /* ON CONFLICT clauses for upsert, or NULL */
-){
-  tdsqlite3 *db;          /* The main database structure */
-  Table *pTab;          /* The table to insert into.  aka TABLE */
-  int i, j;             /* Loop counters */
-  Vdbe *v;              /* Generate code into this virtual machine */
-  Index *pIdx;          /* For looping over indices of the table */
-  int nColumn;          /* Number of columns in the data */
-  int nHidden = 0;      /* Number of hidden columns if TABLE is virtual */
-  int iDataCur = 0;     /* VDBE cursor that is the main data repository */
-  int iIdxCur = 0;      /* First index cursor */
-  int ipkColumn = -1;   /* Column that is the INTEGER PRIMARY KEY */
-  int endOfLoop;        /* Label for the end of the insertion loop */
-  int srcTab = 0;       /* Data comes from this temporary cursor if >=0 */
-  int addrInsTop = 0;   /* Jump to label "D" */
-  int addrCont = 0;     /* Top of insert loop. Label "C" in templates 3 and 4 */
-  SelectDest dest;      /* Destination for SELECT on rhs of INSERT */
-  int iDb;              /* Index of database holding TABLE */
-  u8 useTempTable = 0;  /* Store SELECT results in intermediate table */
-  u8 appendFlag = 0;    /* True if the insert is likely to be an append */
-  u8 withoutRowid;      /* 0 for normal table.  1 for WITHOUT ROWID table */
-  u8 bIdListInOrder;    /* True if IDLIST is in table order */
-  ExprList *pList = 0;  /* List of VALUES() to be inserted  */
-  int iRegStore;        /* Register in which to store next column */
-
-  /* Register allocations */
-  int regFromSelect = 0;/* Base register for data coming from SELECT */
-  int regAutoinc = 0;   /* Register holding the AUTOINCREMENT counter */
-  int regRowCount = 0;  /* Memory cell used for the row counter */
-  int regIns;           /* Block of regs holding rowid+data being inserted */
-  int regRowid;         /* registers holding insert rowid */
-  int regData;          /* register holding first column to insert */
-  int *aRegIdx = 0;     /* One register allocated to each index */
-
-#ifndef SQLITE_OMIT_TRIGGER
-  int isView;                 /* True if attempting to insert into a view */
-  Trigger *pTrigger;          /* List of triggers on pTab, if required */
-  int tmask;                  /* Mask of trigger times */
-#endif
-
-  db = pParse->db;
-  if( pParse->nErr || db->mallocFailed ){
-    goto insert_cleanup;
-  }
-  dest.iSDParm = 0;  /* Suppress a harmless compiler warning */
-
-  /* If the Select object is really just a simple VALUES() list with a
-  ** single row (the common case) then keep that one row of values
-  ** and discard the other (unused) parts of the pSelect object
-  */
-  if( pSelect && (pSelect->selFlags & SF_Values)!=0 && pSelect->pPrior==0 ){
-    pList = pSelect->pEList;
-    pSelect->pEList = 0;
-    tdsqlite3SelectDelete(db, pSelect);
-    pSelect = 0;
-  }
-
-  /* Locate the table into which we will be inserting new information.
-  */
-  assert( pTabList->nSrc==1 );
-  pTab = tdsqlite3SrcListLookup(pParse, pTabList);
-  if( pTab==0 ){
-    goto insert_cleanup;
-  }
-  iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-  assert( iDb<db->nDb );
-  if( tdsqlite3AuthCheck(pParse, SQLITE_INSERT, pTab->zName, 0,
-                       db->aDb[iDb].zDbSName) ){
-    goto insert_cleanup;
-  }
-  withoutRowid = !HasRowid(pTab);
-
-  /* Figure out if we have any triggers and if the table being
-  ** inserted into is a view
-  */
-#ifndef SQLITE_OMIT_TRIGGER
-  pTrigger = tdsqlite3TriggersExist(pParse, pTab, TK_INSERT, 0, &tmask);
-  isView = pTab->pSelect!=0;
-#else
-# define pTrigger 0
-# define tmask 0
-# define isView 0
-#endif
-#ifdef SQLITE_OMIT_VIEW
-# undef isView
-# define isView 0
-#endif
-  assert( (pTrigger && tmask) || (pTrigger==0 && tmask==0) );
-
-  /* If pTab is really a view, make sure it has been initialized.
-  ** ViewGetColumnNames() is a no-op if pTab is not a view.
-  */
-  if( tdsqlite3ViewGetColumnNames(pParse, pTab) ){
-    goto insert_cleanup;
-  }
-
-  /* Cannot insert into a read-only table.
-  */
-  if( tdsqlite3IsReadOnly(pParse, pTab, tmask) ){
-    goto insert_cleanup;
-  }
-
-  /* Allocate a VDBE
-  */
-  v = tdsqlite3GetVdbe(pParse);
-  if( v==0 ) goto insert_cleanup;
-  if( pParse->nested==0 ) tdsqlite3VdbeCountChanges(v);
-  tdsqlite3BeginWriteOperation(pParse, pSelect || pTrigger, iDb);
-
-#ifndef SQLITE_OMIT_XFER_OPT
-  /* If the statement is of the form
-  **
-  **       INSERT INTO <table1> SELECT * FROM <table2>;
-  **
-  ** Then special optimizations can be applied that make the transfer
-  ** very fast and which reduce fragmentation of indices.
-  **
-  ** This is the 2nd template.
-  */
-  if( pColumn==0 && xferOptimization(pParse, pTab, pSelect, onError, iDb) ){
-    assert( !pTrigger );
-    assert( pList==0 );
-    goto insert_end;
-  }
-#endif /* SQLITE_OMIT_XFER_OPT */
-
-  /* If this is an AUTOINCREMENT table, look up the sequence number in the
-  ** sqlite_sequence table and store it in memory cell regAutoinc.
-  */
-  regAutoinc = autoIncBegin(pParse, iDb, pTab);
-
-  /* Allocate a block registers to hold the rowid and the values
-  ** for all columns of the new row.
-  */
-  regRowid = regIns = pParse->nMem+1;
-  pParse->nMem += pTab->nCol + 1;
-  if( IsVirtual(pTab) ){
-    regRowid++;
-    pParse->nMem++;
-  }
-  regData = regRowid+1;
-
-  /* If the INSERT statement included an IDLIST term, then make sure
-  ** all elements of the IDLIST really are columns of the table and 
-  ** remember the column indices.
-  **
-  ** If the table has an INTEGER PRIMARY KEY column and that column
-  ** is named in the IDLIST, then record in the ipkColumn variable
-  ** the index into IDLIST of the primary key column.  ipkColumn is
-  ** the index of the primary key as it appears in IDLIST, not as
-  ** is appears in the original table.  (The index of the INTEGER
-  ** PRIMARY KEY in the original table is pTab->iPKey.)  After this
-  ** loop, if ipkColumn==(-1), that means that integer primary key
-  ** is unspecified, and hence the table is either WITHOUT ROWID or
-  ** it will automatically generated an integer primary key.
-  **
-  ** bIdListInOrder is true if the columns in IDLIST are in storage
-  ** order.  This enables an optimization that avoids shuffling the
-  ** columns into storage order.  False negatives are harmless,
-  ** but false positives will cause database corruption.
-  */
-  bIdListInOrder = (pTab->tabFlags & (TF_OOOHidden|TF_HasStored))==0;
-  if( pColumn ){
-    for(i=0; i<pColumn->nId; i++){
-      pColumn->a[i].idx = -1;
-    }
-    for(i=0; i<pColumn->nId; i++){
-      for(j=0; j<pTab->nCol; j++){
-        if( tdsqlite3StrICmp(pColumn->a[i].zName, pTab->aCol[j].zName)==0 ){
-          pColumn->a[i].idx = j;
-          if( i!=j ) bIdListInOrder = 0;
-          if( j==pTab->iPKey ){
-            ipkColumn = i;  assert( !withoutRowid );
-          }
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-          if( pTab->aCol[j].colFlags & (COLFLAG_STORED|COLFLAG_VIRTUAL) ){
-            tdsqlite3ErrorMsg(pParse, 
-               "cannot INSERT into generated column \"%s\"",
-               pTab->aCol[j].zName);
-            goto insert_cleanup;
-          }
-#endif
-          break;
-        }
-      }
-      if( j>=pTab->nCol ){
-        if( tdsqlite3IsRowid(pColumn->a[i].zName) && !withoutRowid ){
-          ipkColumn = i;
-          bIdListInOrder = 0;
-        }else{
-          tdsqlite3ErrorMsg(pParse, "table %S has no column named %s",
-              pTabList, 0, pColumn->a[i].zName);
-          pParse->checkSchema = 1;
-          goto insert_cleanup;
-        }
-      }
-    }
-  }
-
-  /* Figure out how many columns of data are supplied.  If the data
-  ** is coming from a SELECT statement, then generate a co-routine that
-  ** produces a single row of the SELECT on each invocation.  The
-  ** co-routine is the common header to the 3rd and 4th templates.
-  */
-  if( pSelect ){
-    /* Data is coming from a SELECT or from a multi-row VALUES clause.
-    ** Generate a co-routine to run the SELECT. */
-    int regYield;       /* Register holding co-routine entry-point */
-    int addrTop;        /* Top of the co-routine */
-    int rc;             /* Result code */
-
-    regYield = ++pParse->nMem;
-    addrTop = tdsqlite3VdbeCurrentAddr(v) + 1;
-    tdsqlite3VdbeAddOp3(v, OP_InitCoroutine, regYield, 0, addrTop);
-    tdsqlite3SelectDestInit(&dest, SRT_Coroutine, regYield);
-    dest.iSdst = bIdListInOrder ? regData : 0;
-    dest.nSdst = pTab->nCol;
-    rc = tdsqlite3Select(pParse, pSelect, &dest);
-    regFromSelect = dest.iSdst;
-    if( rc || db->mallocFailed || pParse->nErr ) goto insert_cleanup;
-    tdsqlite3VdbeEndCoroutine(v, regYield);
-    tdsqlite3VdbeJumpHere(v, addrTop - 1);                       /* label B: */
-    assert( pSelect->pEList );
-    nColumn = pSelect->pEList->nExpr;
-
-    /* Set useTempTable to TRUE if the result of the SELECT statement
-    ** should be written into a temporary table (template 4).  Set to
-    ** FALSE if each output row of the SELECT can be written directly into
-    ** the destination table (template 3).
-    **
-    ** A temp table must be used if the table being updated is also one
-    ** of the tables being read by the SELECT statement.  Also use a 
-    ** temp table in the case of row triggers.
-    */
-    if( pTrigger || readsTable(pParse, iDb, pTab) ){
-      useTempTable = 1;
-    }
-
-    if( useTempTable ){
-      /* Invoke the coroutine to extract information from the SELECT
-      ** and add it to a transient table srcTab.  The code generated
-      ** here is from the 4th template:
-      **
-      **      B: open temp table
-      **      L: yield X, goto M at EOF
-      **         insert row from R..R+n into temp table
-      **         goto L
-      **      M: ...
-      */
-      int regRec;          /* Register to hold packed record */
-      int regTempRowid;    /* Register to hold temp table ROWID */
-      int addrL;           /* Label "L" */
-
-      srcTab = pParse->nTab++;
-      regRec = tdsqlite3GetTempReg(pParse);
-      regTempRowid = tdsqlite3GetTempReg(pParse);
-      tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, srcTab, nColumn);
-      addrL = tdsqlite3VdbeAddOp1(v, OP_Yield, dest.iSDParm); VdbeCoverage(v);
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regFromSelect, nColumn, regRec);
-      tdsqlite3VdbeAddOp2(v, OP_NewRowid, srcTab, regTempRowid);
-      tdsqlite3VdbeAddOp3(v, OP_Insert, srcTab, regRec, regTempRowid);
-      tdsqlite3VdbeGoto(v, addrL);
-      tdsqlite3VdbeJumpHere(v, addrL);
-      tdsqlite3ReleaseTempReg(pParse, regRec);
-      tdsqlite3ReleaseTempReg(pParse, regTempRowid);
-    }
-  }else{
-    /* This is the case if the data for the INSERT is coming from a 
-    ** single-row VALUES clause
-    */
-    NameContext sNC;
-    memset(&sNC, 0, sizeof(sNC));
-    sNC.pParse = pParse;
-    srcTab = -1;
-    assert( useTempTable==0 );
-    if( pList ){
-      nColumn = pList->nExpr;
-      if( tdsqlite3ResolveExprListNames(&sNC, pList) ){
-        goto insert_cleanup;
-      }
-    }else{
-      nColumn = 0;
-    }
-  }
-
-  /* If there is no IDLIST term but the table has an integer primary
-  ** key, the set the ipkColumn variable to the integer primary key 
-  ** column index in the original table definition.
-  */
-  if( pColumn==0 && nColumn>0 ){
-    ipkColumn = pTab->iPKey;
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-    if( ipkColumn>=0 && (pTab->tabFlags & TF_HasGenerated)!=0 ){
-      testcase( pTab->tabFlags & TF_HasVirtual );
-      testcase( pTab->tabFlags & TF_HasStored );
-      for(i=ipkColumn-1; i>=0; i--){
-        if( pTab->aCol[i].colFlags & COLFLAG_GENERATED ){
-          testcase( pTab->aCol[i].colFlags & COLFLAG_VIRTUAL );
-          testcase( pTab->aCol[i].colFlags & COLFLAG_STORED );
-          ipkColumn--;
-        }
-      }
-    }
-#endif
-  }
-
-  /* Make sure the number of columns in the source data matches the number
-  ** of columns to be inserted into the table.
-  */
-  for(i=0; i<pTab->nCol; i++){
-    if( pTab->aCol[i].colFlags & COLFLAG_NOINSERT ) nHidden++;
-  }
-  if( pColumn==0 && nColumn && nColumn!=(pTab->nCol-nHidden) ){
-    tdsqlite3ErrorMsg(pParse, 
-       "table %S has %d columns but %d values were supplied",
-       pTabList, 0, pTab->nCol-nHidden, nColumn);
-    goto insert_cleanup;
-  }
-  if( pColumn!=0 && nColumn!=pColumn->nId ){
-    tdsqlite3ErrorMsg(pParse, "%d values for %d columns", nColumn, pColumn->nId);
-    goto insert_cleanup;
-  }
-    
-  /* Initialize the count of rows to be inserted
-  */
-  if( (db->flags & SQLITE_CountRows)!=0
-   && !pParse->nested
-   && !pParse->pTriggerTab
-  ){
-    regRowCount = ++pParse->nMem;
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regRowCount);
-  }
-
-  /* If this is not a view, open the table and and all indices */
-  if( !isView ){
-    int nIdx;
-    nIdx = tdsqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, 0, -1, 0,
-                                      &iDataCur, &iIdxCur);
-    aRegIdx = tdsqlite3DbMallocRawNN(db, sizeof(int)*(nIdx+2));
-    if( aRegIdx==0 ){
-      goto insert_cleanup;
-    }
-    for(i=0, pIdx=pTab->pIndex; i<nIdx; pIdx=pIdx->pNext, i++){
-      assert( pIdx );
-      aRegIdx[i] = ++pParse->nMem;
-      pParse->nMem += pIdx->nColumn;
-    }
-    aRegIdx[i] = ++pParse->nMem;  /* Register to store the table record */
-  }
-#ifndef SQLITE_OMIT_UPSERT
-  if( pUpsert ){
-    if( IsVirtual(pTab) ){
-      tdsqlite3ErrorMsg(pParse, "UPSERT not implemented for virtual table \"%s\"",
-              pTab->zName);
-      goto insert_cleanup;
-    }
-    if( pTab->pSelect ){
-      tdsqlite3ErrorMsg(pParse, "cannot UPSERT a view");
-      goto insert_cleanup;
-    }
-    if( tdsqlite3HasExplicitNulls(pParse, pUpsert->pUpsertTarget) ){
-      goto insert_cleanup;
-    }
-    pTabList->a[0].iCursor = iDataCur;
-    pUpsert->pUpsertSrc = pTabList;
-    pUpsert->regData = regData;
-    pUpsert->iDataCur = iDataCur;
-    pUpsert->iIdxCur = iIdxCur;
-    if( pUpsert->pUpsertTarget ){
-      tdsqlite3UpsertAnalyzeTarget(pParse, pTabList, pUpsert);
-    }
-  }
-#endif
-
-
-  /* This is the top of the main insertion loop */
-  if( useTempTable ){
-    /* This block codes the top of loop only.  The complete loop is the
-    ** following pseudocode (template 4):
-    **
-    **         rewind temp table, if empty goto D
-    **      C: loop over rows of intermediate table
-    **           transfer values form intermediate table into <table>
-    **         end loop
-    **      D: ...
-    */
-    addrInsTop = tdsqlite3VdbeAddOp1(v, OP_Rewind, srcTab); VdbeCoverage(v);
-    addrCont = tdsqlite3VdbeCurrentAddr(v);
-  }else if( pSelect ){
-    /* This block codes the top of loop only.  The complete loop is the
-    ** following pseudocode (template 3):
-    **
-    **      C: yield X, at EOF goto D
-    **         insert the select result into <table> from R..R+n
-    **         goto C
-    **      D: ...
-    */
-    tdsqlite3VdbeReleaseRegisters(pParse, regData, pTab->nCol, 0, 0);
-    addrInsTop = addrCont = tdsqlite3VdbeAddOp1(v, OP_Yield, dest.iSDParm);
-    VdbeCoverage(v);
-    if( ipkColumn>=0 ){
-      /* tag-20191021-001: If the INTEGER PRIMARY KEY is being generated by the
-      ** SELECT, go ahead and copy the value into the rowid slot now, so that
-      ** the value does not get overwritten by a NULL at tag-20191021-002. */
-      tdsqlite3VdbeAddOp2(v, OP_Copy, regFromSelect+ipkColumn, regRowid);
-    }
-  }
-
-  /* Compute data for ordinary columns of the new entry.  Values
-  ** are written in storage order into registers starting with regData.
-  ** Only ordinary columns are computed in this loop. The rowid
-  ** (if there is one) is computed later and generated columns are
-  ** computed after the rowid since they might depend on the value
-  ** of the rowid.
-  */
-  nHidden = 0;
-  iRegStore = regData;  assert( regData==regRowid+1 );
-  for(i=0; i<pTab->nCol; i++, iRegStore++){
-    int k;
-    u32 colFlags;
-    assert( i>=nHidden );
-    if( i==pTab->iPKey ){
-      /* tag-20191021-002: References to the INTEGER PRIMARY KEY are filled
-      ** using the rowid. So put a NULL in the IPK slot of the record to avoid
-      ** using excess space.  The file format definition requires this extra
-      ** NULL - we cannot optimize further by skipping the column completely */
-      tdsqlite3VdbeAddOp1(v, OP_SoftNull, iRegStore);
-      continue;
-    }
-    if( ((colFlags = pTab->aCol[i].colFlags) & COLFLAG_NOINSERT)!=0 ){
-      nHidden++;
-      if( (colFlags & COLFLAG_VIRTUAL)!=0 ){
-        /* Virtual columns do not participate in OP_MakeRecord.  So back up
-        ** iRegStore by one slot to compensate for the iRegStore++ in the
-        ** outer for() loop */
-        iRegStore--;
-        continue;
-      }else if( (colFlags & COLFLAG_STORED)!=0 ){
-        /* Stored columns are computed later.  But if there are BEFORE
-        ** triggers, the slots used for stored columns will be OP_Copy-ed
-        ** to a second block of registers, so the register needs to be
-        ** initialized to NULL to avoid an uninitialized register read */
-        if( tmask & TRIGGER_BEFORE ){
-          tdsqlite3VdbeAddOp1(v, OP_SoftNull, iRegStore);
-        }
-        continue;
-      }else if( pColumn==0 ){
-        /* Hidden columns that are not explicitly named in the INSERT
-        ** get there default value */
-        tdsqlite3ExprCodeFactorable(pParse, pTab->aCol[i].pDflt, iRegStore);
-        continue;
-      }
-    }
-    if( pColumn ){
-      for(j=0; j<pColumn->nId && pColumn->a[j].idx!=i; j++){}
-      if( j>=pColumn->nId ){
-        /* A column not named in the insert column list gets its
-        ** default value */
-        tdsqlite3ExprCodeFactorable(pParse, pTab->aCol[i].pDflt, iRegStore);
-        continue;
-      }
-      k = j;
-    }else if( nColumn==0 ){
-      /* This is INSERT INTO ... DEFAULT VALUES.  Load the default value. */
-      tdsqlite3ExprCodeFactorable(pParse, pTab->aCol[i].pDflt, iRegStore);
-      continue;
-    }else{
-      k = i - nHidden;
-    }
-
-    if( useTempTable ){
-      tdsqlite3VdbeAddOp3(v, OP_Column, srcTab, k, iRegStore); 
-    }else if( pSelect ){
-      if( regFromSelect!=regData ){
-        tdsqlite3VdbeAddOp2(v, OP_SCopy, regFromSelect+k, iRegStore);
-      }
-    }else{
-      tdsqlite3ExprCode(pParse, pList->a[k].pExpr, iRegStore);
-    }
-  }
-
-
-  /* Run the BEFORE and INSTEAD OF triggers, if there are any
-  */
-  endOfLoop = tdsqlite3VdbeMakeLabel(pParse);
-  if( tmask & TRIGGER_BEFORE ){
-    int regCols = tdsqlite3GetTempRange(pParse, pTab->nCol+1);
-
-    /* build the NEW.* reference row.  Note that if there is an INTEGER
-    ** PRIMARY KEY into which a NULL is being inserted, that NULL will be
-    ** translated into a unique ID for the row.  But on a BEFORE trigger,
-    ** we do not know what the unique ID will be (because the insert has
-    ** not happened yet) so we substitute a rowid of -1
-    */
-    if( ipkColumn<0 ){
-      tdsqlite3VdbeAddOp2(v, OP_Integer, -1, regCols);
-    }else{
-      int addr1;
-      assert( !withoutRowid );
-      if( useTempTable ){
-        tdsqlite3VdbeAddOp3(v, OP_Column, srcTab, ipkColumn, regCols);
-      }else{
-        assert( pSelect==0 );  /* Otherwise useTempTable is true */
-        tdsqlite3ExprCode(pParse, pList->a[ipkColumn].pExpr, regCols);
-      }
-      addr1 = tdsqlite3VdbeAddOp1(v, OP_NotNull, regCols); VdbeCoverage(v);
-      tdsqlite3VdbeAddOp2(v, OP_Integer, -1, regCols);
-      tdsqlite3VdbeJumpHere(v, addr1);
-      tdsqlite3VdbeAddOp1(v, OP_MustBeInt, regCols); VdbeCoverage(v);
-    }
-
-    /* Cannot have triggers on a virtual table. If it were possible,
-    ** this block would have to account for hidden column.
-    */
-    assert( !IsVirtual(pTab) );
-
-    /* Copy the new data already generated. */
-    assert( pTab->nNVCol>0 );
-    tdsqlite3VdbeAddOp3(v, OP_Copy, regRowid+1, regCols+1, pTab->nNVCol-1);
-
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-    /* Compute the new value for generated columns after all other
-    ** columns have already been computed.  This must be done after
-    ** computing the ROWID in case one of the generated columns
-    ** refers to the ROWID. */
-    if( pTab->tabFlags & TF_HasGenerated ){
-      testcase( pTab->tabFlags & TF_HasVirtual );
-      testcase( pTab->tabFlags & TF_HasStored );
-      tdsqlite3ComputeGeneratedColumns(pParse, regCols+1, pTab);
-    }
-#endif
-
-    /* If this is an INSERT on a view with an INSTEAD OF INSERT trigger,
-    ** do not attempt any conversions before assembling the record.
-    ** If this is a real table, attempt conversions as required by the
-    ** table column affinities.
-    */
-    if( !isView ){
-      tdsqlite3TableAffinity(v, pTab, regCols+1);
-    }
-
-    /* Fire BEFORE or INSTEAD OF triggers */
-    tdsqlite3CodeRowTrigger(pParse, pTrigger, TK_INSERT, 0, TRIGGER_BEFORE, 
-        pTab, regCols-pTab->nCol-1, onError, endOfLoop);
-
-    tdsqlite3ReleaseTempRange(pParse, regCols, pTab->nCol+1);
-  }
-
-  if( !isView ){
-    if( IsVirtual(pTab) ){
-      /* The row that the VUpdate opcode will delete: none */
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, regIns);
-    }
-    if( ipkColumn>=0 ){
-      /* Compute the new rowid */
-      if( useTempTable ){
-        tdsqlite3VdbeAddOp3(v, OP_Column, srcTab, ipkColumn, regRowid);
-      }else if( pSelect ){
-        /* Rowid already initialized at tag-20191021-001 */
-      }else{
-        Expr *pIpk = pList->a[ipkColumn].pExpr;
-        if( pIpk->op==TK_NULL && !IsVirtual(pTab) ){
-          tdsqlite3VdbeAddOp3(v, OP_NewRowid, iDataCur, regRowid, regAutoinc);
-          appendFlag = 1;
-        }else{
-          tdsqlite3ExprCode(pParse, pList->a[ipkColumn].pExpr, regRowid);
-        }
-      }
-      /* If the PRIMARY KEY expression is NULL, then use OP_NewRowid
-      ** to generate a unique primary key value.
-      */
-      if( !appendFlag ){
-        int addr1;
-        if( !IsVirtual(pTab) ){
-          addr1 = tdsqlite3VdbeAddOp1(v, OP_NotNull, regRowid); VdbeCoverage(v);
-          tdsqlite3VdbeAddOp3(v, OP_NewRowid, iDataCur, regRowid, regAutoinc);
-          tdsqlite3VdbeJumpHere(v, addr1);
-        }else{
-          addr1 = tdsqlite3VdbeCurrentAddr(v);
-          tdsqlite3VdbeAddOp2(v, OP_IsNull, regRowid, addr1+2); VdbeCoverage(v);
-        }
-        tdsqlite3VdbeAddOp1(v, OP_MustBeInt, regRowid); VdbeCoverage(v);
-      }
-    }else if( IsVirtual(pTab) || withoutRowid ){
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, regRowid);
-    }else{
-      tdsqlite3VdbeAddOp3(v, OP_NewRowid, iDataCur, regRowid, regAutoinc);
-      appendFlag = 1;
-    }
-    autoIncStep(pParse, regAutoinc, regRowid);
-
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-    /* Compute the new value for generated columns after all other
-    ** columns have already been computed.  This must be done after
-    ** computing the ROWID in case one of the generated columns
-    ** is derived from the INTEGER PRIMARY KEY. */
-    if( pTab->tabFlags & TF_HasGenerated ){
-      tdsqlite3ComputeGeneratedColumns(pParse, regRowid+1, pTab);
-    }
-#endif
-
-    /* Generate code to check constraints and generate index keys and
-    ** do the insertion.
-    */
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    if( IsVirtual(pTab) ){
-      const char *pVTab = (const char *)tdsqlite3GetVTable(db, pTab);
-      tdsqlite3VtabMakeWritable(pParse, pTab);
-      tdsqlite3VdbeAddOp4(v, OP_VUpdate, 1, pTab->nCol+2, regIns, pVTab, P4_VTAB);
-      tdsqlite3VdbeChangeP5(v, onError==OE_Default ? OE_Abort : onError);
-      tdsqlite3MayAbort(pParse);
-    }else
-#endif
-    {
-      int isReplace;    /* Set to true if constraints may cause a replace */
-      int bUseSeek;     /* True to use OPFLAG_SEEKRESULT */
-      tdsqlite3GenerateConstraintChecks(pParse, pTab, aRegIdx, iDataCur, iIdxCur,
-          regIns, 0, ipkColumn>=0, onError, endOfLoop, &isReplace, 0, pUpsert
-      );
-      tdsqlite3FkCheck(pParse, pTab, 0, regIns, 0, 0);
-
-      /* Set the OPFLAG_USESEEKRESULT flag if either (a) there are no REPLACE
-      ** constraints or (b) there are no triggers and this table is not a
-      ** parent table in a foreign key constraint. It is safe to set the
-      ** flag in the second case as if any REPLACE constraint is hit, an
-      ** OP_Delete or OP_IdxDelete instruction will be executed on each 
-      ** cursor that is disturbed. And these instructions both clear the
-      ** VdbeCursor.seekResult variable, disabling the OPFLAG_USESEEKRESULT
-      ** functionality.  */
-      bUseSeek = (isReplace==0 || !tdsqlite3VdbeHasSubProgram(v));
-      tdsqlite3CompleteInsertion(pParse, pTab, iDataCur, iIdxCur,
-          regIns, aRegIdx, 0, appendFlag, bUseSeek
-      );
-    }
-  }
-
-  /* Update the count of rows that are inserted
-  */
-  if( regRowCount ){
-    tdsqlite3VdbeAddOp2(v, OP_AddImm, regRowCount, 1);
-  }
-
-  if( pTrigger ){
-    /* Code AFTER triggers */
-    tdsqlite3CodeRowTrigger(pParse, pTrigger, TK_INSERT, 0, TRIGGER_AFTER, 
-        pTab, regData-2-pTab->nCol, onError, endOfLoop);
-  }
-
-  /* The bottom of the main insertion loop, if the data source
-  ** is a SELECT statement.
-  */
-  tdsqlite3VdbeResolveLabel(v, endOfLoop);
-  if( useTempTable ){
-    tdsqlite3VdbeAddOp2(v, OP_Next, srcTab, addrCont); VdbeCoverage(v);
-    tdsqlite3VdbeJumpHere(v, addrInsTop);
-    tdsqlite3VdbeAddOp1(v, OP_Close, srcTab);
-  }else if( pSelect ){
-    tdsqlite3VdbeGoto(v, addrCont);
-#ifdef SQLITE_DEBUG
-    /* If we are jumping back to an OP_Yield that is preceded by an
-    ** OP_ReleaseReg, set the p5 flag on the OP_Goto so that the
-    ** OP_ReleaseReg will be included in the loop. */
-    if( tdsqlite3VdbeGetOp(v, addrCont-1)->opcode==OP_ReleaseReg ){
-      assert( tdsqlite3VdbeGetOp(v, addrCont)->opcode==OP_Yield );
-      tdsqlite3VdbeChangeP5(v, 1);
-    }
-#endif
-    tdsqlite3VdbeJumpHere(v, addrInsTop);
-  }
-
-insert_end:
-  /* Update the sqlite_sequence table by storing the content of the
-  ** maximum rowid counter values recorded while inserting into
-  ** autoincrement tables.
-  */
-  if( pParse->nested==0 && pParse->pTriggerTab==0 ){
-    tdsqlite3AutoincrementEnd(pParse);
-  }
-
-  /*
-  ** Return the number of rows inserted. If this routine is 
-  ** generating code because of a call to tdsqlite3NestedParse(), do not
-  ** invoke the callback function.
-  */
-  if( regRowCount ){
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, regRowCount, 1);
-    tdsqlite3VdbeSetNumCols(v, 1);
-    tdsqlite3VdbeSetColName(v, 0, COLNAME_NAME, "rows inserted", SQLITE_STATIC);
-  }
-
-insert_cleanup:
-  tdsqlite3SrcListDelete(db, pTabList);
-  tdsqlite3ExprListDelete(db, pList);
-  tdsqlite3UpsertDelete(db, pUpsert);
-  tdsqlite3SelectDelete(db, pSelect);
-  tdsqlite3IdListDelete(db, pColumn);
-  tdsqlite3DbFree(db, aRegIdx);
-}
-
-/* Make sure "isView" and other macros defined above are undefined. Otherwise
-** they may interfere with compilation of other functions in this file
-** (or in another file, if this file becomes part of the amalgamation).  */
-#ifdef isView
- #undef isView
-#endif
-#ifdef pTrigger
- #undef pTrigger
-#endif
-#ifdef tmask
- #undef tmask
-#endif
-
-/*
-** Meanings of bits in of pWalker->eCode for 
-** tdsqlite3ExprReferencesUpdatedColumn()
-*/
-#define CKCNSTRNT_COLUMN   0x01    /* CHECK constraint uses a changing column */
-#define CKCNSTRNT_ROWID    0x02    /* CHECK constraint references the ROWID */
-
-/* This is the Walker callback from tdsqlite3ExprReferencesUpdatedColumn().
-*  Set bit 0x01 of pWalker->eCode if pWalker->eCode to 0 and if this
-** expression node references any of the
-** columns that are being modifed by an UPDATE statement.
-*/
-static int checkConstraintExprNode(Walker *pWalker, Expr *pExpr){
-  if( pExpr->op==TK_COLUMN ){
-    assert( pExpr->iColumn>=0 || pExpr->iColumn==-1 );
-    if( pExpr->iColumn>=0 ){
-      if( pWalker->u.aiCol[pExpr->iColumn]>=0 ){
-        pWalker->eCode |= CKCNSTRNT_COLUMN;
-      }
-    }else{
-      pWalker->eCode |= CKCNSTRNT_ROWID;
-    }
-  }
-  return WRC_Continue;
-}
-
-/*
-** pExpr is a CHECK constraint on a row that is being UPDATE-ed.  The
-** only columns that are modified by the UPDATE are those for which
-** aiChng[i]>=0, and also the ROWID is modified if chngRowid is true.
-**
-** Return true if CHECK constraint pExpr uses any of the
-** changing columns (or the rowid if it is changing).  In other words,
-** return true if this CHECK constraint must be validated for
-** the new row in the UPDATE statement.
-**
-** 2018-09-15: pExpr might also be an expression for an index-on-expressions.
-** The operation of this routine is the same - return true if an only if
-** the expression uses one or more of columns identified by the second and
-** third arguments.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprReferencesUpdatedColumn(
-  Expr *pExpr,    /* The expression to be checked */
-  int *aiChng,    /* aiChng[x]>=0 if column x changed by the UPDATE */
-  int chngRowid   /* True if UPDATE changes the rowid */
-){
-  Walker w;
-  memset(&w, 0, sizeof(w));
-  w.eCode = 0;
-  w.xExprCallback = checkConstraintExprNode;
-  w.u.aiCol = aiChng;
-  tdsqlite3WalkExpr(&w, pExpr);
-  if( !chngRowid ){
-    testcase( (w.eCode & CKCNSTRNT_ROWID)!=0 );
-    w.eCode &= ~CKCNSTRNT_ROWID;
-  }
-  testcase( w.eCode==0 );
-  testcase( w.eCode==CKCNSTRNT_COLUMN );
-  testcase( w.eCode==CKCNSTRNT_ROWID );
-  testcase( w.eCode==(CKCNSTRNT_ROWID|CKCNSTRNT_COLUMN) );
-  return w.eCode!=0;
-}
-
-/*
-** Generate code to do constraint checks prior to an INSERT or an UPDATE
-** on table pTab.
-**
-** The regNewData parameter is the first register in a range that contains
-** the data to be inserted or the data after the update.  There will be
-** pTab->nCol+1 registers in this range.  The first register (the one
-** that regNewData points to) will contain the new rowid, or NULL in the
-** case of a WITHOUT ROWID table.  The second register in the range will
-** contain the content of the first table column.  The third register will
-** contain the content of the second table column.  And so forth.
-**
-** The regOldData parameter is similar to regNewData except that it contains
-** the data prior to an UPDATE rather than afterwards.  regOldData is zero
-** for an INSERT.  This routine can distinguish between UPDATE and INSERT by
-** checking regOldData for zero.
-**
-** For an UPDATE, the pkChng boolean is true if the true primary key (the
-** rowid for a normal table or the PRIMARY KEY for a WITHOUT ROWID table)
-** might be modified by the UPDATE.  If pkChng is false, then the key of
-** the iDataCur content table is guaranteed to be unchanged by the UPDATE.
-**
-** For an INSERT, the pkChng boolean indicates whether or not the rowid
-** was explicitly specified as part of the INSERT statement.  If pkChng
-** is zero, it means that the either rowid is computed automatically or
-** that the table is a WITHOUT ROWID table and has no rowid.  On an INSERT,
-** pkChng will only be true if the INSERT statement provides an integer
-** value for either the rowid column or its INTEGER PRIMARY KEY alias.
-**
-** The code generated by this routine will store new index entries into
-** registers identified by aRegIdx[].  No index entry is created for
-** indices where aRegIdx[i]==0.  The order of indices in aRegIdx[] is
-** the same as the order of indices on the linked list of indices
-** at pTab->pIndex.
-**
-** (2019-05-07) The generated code also creates a new record for the
-** main table, if pTab is a rowid table, and stores that record in the
-** register identified by aRegIdx[nIdx] - in other words in the first
-** entry of aRegIdx[] past the last index.  It is important that the
-** record be generated during constraint checks to avoid affinity changes
-** to the register content that occur after constraint checks but before
-** the new record is inserted.
-**
-** The caller must have already opened writeable cursors on the main
-** table and all applicable indices (that is to say, all indices for which
-** aRegIdx[] is not zero).  iDataCur is the cursor for the main table when
-** inserting or updating a rowid table, or the cursor for the PRIMARY KEY
-** index when operating on a WITHOUT ROWID table.  iIdxCur is the cursor
-** for the first index in the pTab->pIndex list.  Cursors for other indices
-** are at iIdxCur+N for the N-th element of the pTab->pIndex list.
-**
-** This routine also generates code to check constraints.  NOT NULL,
-** CHECK, and UNIQUE constraints are all checked.  If a constraint fails,
-** then the appropriate action is performed.  There are five possible
-** actions: ROLLBACK, ABORT, FAIL, REPLACE, and IGNORE.
-**
-**  Constraint type  Action       What Happens
-**  ---------------  ----------   ----------------------------------------
-**  any              ROLLBACK     The current transaction is rolled back and
-**                                tdsqlite3_step() returns immediately with a
-**                                return code of SQLITE_CONSTRAINT.
-**
-**  any              ABORT        Back out changes from the current command
-**                                only (do not do a complete rollback) then
-**                                cause tdsqlite3_step() to return immediately
-**                                with SQLITE_CONSTRAINT.
-**
-**  any              FAIL         Sqlite3_step() returns immediately with a
-**                                return code of SQLITE_CONSTRAINT.  The
-**                                transaction is not rolled back and any
-**                                changes to prior rows are retained.
-**
-**  any              IGNORE       The attempt in insert or update the current
-**                                row is skipped, without throwing an error.
-**                                Processing continues with the next row.
-**                                (There is an immediate jump to ignoreDest.)
-**
-**  NOT NULL         REPLACE      The NULL value is replace by the default
-**                                value for that column.  If the default value
-**                                is NULL, the action is the same as ABORT.
-**
-**  UNIQUE           REPLACE      The other row that conflicts with the row
-**                                being inserted is removed.
-**
-**  CHECK            REPLACE      Illegal.  The results in an exception.
-**
-** Which action to take is determined by the overrideError parameter.
-** Or if overrideError==OE_Default, then the pParse->onError parameter
-** is used.  Or if pParse->onError==OE_Default then the onError value
-** for the constraint is used.
-*/
-SQLITE_PRIVATE void tdsqlite3GenerateConstraintChecks(
-  Parse *pParse,       /* The parser context */
-  Table *pTab,         /* The table being inserted or updated */
-  int *aRegIdx,        /* Use register aRegIdx[i] for index i.  0 for unused */
-  int iDataCur,        /* Canonical data cursor (main table or PK index) */
-  int iIdxCur,         /* First index cursor */
-  int regNewData,      /* First register in a range holding values to insert */
-  int regOldData,      /* Previous content.  0 for INSERTs */
-  u8 pkChng,           /* Non-zero if the rowid or PRIMARY KEY changed */
-  u8 overrideError,    /* Override onError to this if not OE_Default */
-  int ignoreDest,      /* Jump to this label on an OE_Ignore resolution */
-  int *pbMayReplace,   /* OUT: Set to true if constraint may cause a replace */
-  int *aiChng,         /* column i is unchanged if aiChng[i]<0 */
-  Upsert *pUpsert      /* ON CONFLICT clauses, if any.  NULL otherwise */
-){
-  Vdbe *v;             /* VDBE under constrution */
-  Index *pIdx;         /* Pointer to one of the indices */
-  Index *pPk = 0;      /* The PRIMARY KEY index */
-  tdsqlite3 *db;         /* Database connection */
-  int i;               /* loop counter */
-  int ix;              /* Index loop counter */
-  int nCol;            /* Number of columns */
-  int onError;         /* Conflict resolution strategy */
-  int seenReplace = 0; /* True if REPLACE is used to resolve INT PK conflict */
-  int nPkField;        /* Number of fields in PRIMARY KEY. 1 for ROWID tables */
-  Index *pUpIdx = 0;   /* Index to which to apply the upsert */
-  u8 isUpdate;         /* True if this is an UPDATE operation */
-  u8 bAffinityDone = 0;  /* True if the OP_Affinity operation has been run */
-  int upsertBypass = 0;  /* Address of Goto to bypass upsert subroutine */
-  int upsertJump = 0;    /* Address of Goto that jumps into upsert subroutine */
-  int ipkTop = 0;        /* Top of the IPK uniqueness check */
-  int ipkBottom = 0;     /* OP_Goto at the end of the IPK uniqueness check */
-  /* Variables associated with retesting uniqueness constraints after
-  ** replace triggers fire have run */
-  int regTrigCnt;       /* Register used to count replace trigger invocations */
-  int addrRecheck = 0;  /* Jump here to recheck all uniqueness constraints */
-  int lblRecheckOk = 0; /* Each recheck jumps to this label if it passes */
-  Trigger *pTrigger;    /* List of DELETE triggers on the table pTab */
-  int nReplaceTrig = 0; /* Number of replace triggers coded */
-
-  isUpdate = regOldData!=0;
-  db = pParse->db;
-  v = tdsqlite3GetVdbe(pParse);
-  assert( v!=0 );
-  assert( pTab->pSelect==0 );  /* This table is not a VIEW */
-  nCol = pTab->nCol;
-  
-  /* pPk is the PRIMARY KEY index for WITHOUT ROWID tables and NULL for
-  ** normal rowid tables.  nPkField is the number of key fields in the 
-  ** pPk index or 1 for a rowid table.  In other words, nPkField is the
-  ** number of fields in the true primary key of the table. */
-  if( HasRowid(pTab) ){
-    pPk = 0;
-    nPkField = 1;
-  }else{
-    pPk = tdsqlite3PrimaryKeyIndex(pTab);
-    nPkField = pPk->nKeyCol;
-  }
-
-  /* Record that this module has started */
-  VdbeModuleComment((v, "BEGIN: GenCnstCks(%d,%d,%d,%d,%d)",
-                     iDataCur, iIdxCur, regNewData, regOldData, pkChng));
-
-  /* Test all NOT NULL constraints.
-  */
-  if( pTab->tabFlags & TF_HasNotNull ){
-    int b2ndPass = 0;         /* True if currently running 2nd pass */
-    int nSeenReplace = 0;     /* Number of ON CONFLICT REPLACE operations */
-    int nGenerated = 0;       /* Number of generated columns with NOT NULL */
-    while(1){  /* Make 2 passes over columns. Exit loop via "break" */
-      for(i=0; i<nCol; i++){
-        int iReg;                        /* Register holding column value */
-        Column *pCol = &pTab->aCol[i];   /* The column to check for NOT NULL */
-        int isGenerated;                 /* non-zero if column is generated */
-        onError = pCol->notNull;
-        if( onError==OE_None ) continue; /* No NOT NULL on this column */
-        if( i==pTab->iPKey ){
-          continue;        /* ROWID is never NULL */
-        }
-        isGenerated = pCol->colFlags & COLFLAG_GENERATED;
-        if( isGenerated && !b2ndPass ){
-          nGenerated++;
-          continue;        /* Generated columns processed on 2nd pass */
-        }
-        if( aiChng && aiChng[i]<0 && !isGenerated ){
-          /* Do not check NOT NULL on columns that do not change */
-          continue;
-        }
-        if( overrideError!=OE_Default ){
-          onError = overrideError;
-        }else if( onError==OE_Default ){
-          onError = OE_Abort;
-        }
-        if( onError==OE_Replace ){
-          if( b2ndPass        /* REPLACE becomes ABORT on the 2nd pass */
-           || pCol->pDflt==0  /* REPLACE is ABORT if no DEFAULT value */
-          ){
-            testcase( pCol->colFlags & COLFLAG_VIRTUAL );
-            testcase( pCol->colFlags & COLFLAG_STORED );
-            testcase( pCol->colFlags & COLFLAG_GENERATED );
-            onError = OE_Abort;
-          }else{
-            assert( !isGenerated );
-          }
-        }else if( b2ndPass && !isGenerated ){
-          continue;
-        }
-        assert( onError==OE_Rollback || onError==OE_Abort || onError==OE_Fail
-            || onError==OE_Ignore || onError==OE_Replace );
-        testcase( i!=tdsqlite3TableColumnToStorage(pTab, i) );
-        iReg = tdsqlite3TableColumnToStorage(pTab, i) + regNewData + 1;
-        switch( onError ){
-          case OE_Replace: {
-            int addr1 = tdsqlite3VdbeAddOp1(v, OP_NotNull, iReg);
-            VdbeCoverage(v);
-            assert( (pCol->colFlags & COLFLAG_GENERATED)==0 );
-            nSeenReplace++;
-            tdsqlite3ExprCode(pParse, pCol->pDflt, iReg);
-            tdsqlite3VdbeJumpHere(v, addr1);
-            break;
-          }
-          case OE_Abort:
-            tdsqlite3MayAbort(pParse);
-            /* Fall through */
-          case OE_Rollback:
-          case OE_Fail: {
-            char *zMsg = tdsqlite3MPrintf(db, "%s.%s", pTab->zName,
-                                        pCol->zName);
-            tdsqlite3VdbeAddOp3(v, OP_HaltIfNull, SQLITE_CONSTRAINT_NOTNULL,
-                              onError, iReg);
-            tdsqlite3VdbeAppendP4(v, zMsg, P4_DYNAMIC);
-            tdsqlite3VdbeChangeP5(v, P5_ConstraintNotNull);
-            VdbeCoverage(v);
-            break;
-          }
-          default: {
-            assert( onError==OE_Ignore );
-            tdsqlite3VdbeAddOp2(v, OP_IsNull, iReg, ignoreDest);
-            VdbeCoverage(v);
-            break;
-          }
-        } /* end switch(onError) */
-      } /* end loop i over columns */
-      if( nGenerated==0 && nSeenReplace==0 ){
-        /* If there are no generated columns with NOT NULL constraints
-        ** and no NOT NULL ON CONFLICT REPLACE constraints, then a single
-        ** pass is sufficient */
-        break;
-      }
-      if( b2ndPass ) break;  /* Never need more than 2 passes */
-      b2ndPass = 1;
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-      if( nSeenReplace>0 && (pTab->tabFlags & TF_HasGenerated)!=0 ){
-        /* If any NOT NULL ON CONFLICT REPLACE constraints fired on the
-        ** first pass, recomputed values for all generated columns, as
-        ** those values might depend on columns affected by the REPLACE.
-        */
-        tdsqlite3ComputeGeneratedColumns(pParse, regNewData+1, pTab);
-      }
-#endif
-    } /* end of 2-pass loop */
-  } /* end if( has-not-null-constraints ) */
-
-  /* Test all CHECK constraints
-  */
-#ifndef SQLITE_OMIT_CHECK
-  if( pTab->pCheck && (db->flags & SQLITE_IgnoreChecks)==0 ){
-    ExprList *pCheck = pTab->pCheck;
-    pParse->iSelfTab = -(regNewData+1);
-    onError = overrideError!=OE_Default ? overrideError : OE_Abort;
-    for(i=0; i<pCheck->nExpr; i++){
-      int allOk;
-      Expr *pExpr = pCheck->a[i].pExpr;
-      if( aiChng
-       && !tdsqlite3ExprReferencesUpdatedColumn(pExpr, aiChng, pkChng)
-      ){
-        /* The check constraints do not reference any of the columns being
-        ** updated so there is no point it verifying the check constraint */
-        continue;
-      }
-      allOk = tdsqlite3VdbeMakeLabel(pParse);
-      tdsqlite3VdbeVerifyAbortable(v, onError);
-      tdsqlite3ExprIfTrue(pParse, pExpr, allOk, SQLITE_JUMPIFNULL);
-      if( onError==OE_Ignore ){
-        tdsqlite3VdbeGoto(v, ignoreDest);
-      }else{
-        char *zName = pCheck->a[i].zEName;
-        if( zName==0 ) zName = pTab->zName;
-        if( onError==OE_Replace ) onError = OE_Abort; /* IMP: R-26383-51744 */
-        tdsqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_CHECK,
-                              onError, zName, P4_TRANSIENT,
-                              P5_ConstraintCheck);
-      }
-      tdsqlite3VdbeResolveLabel(v, allOk);
-    }
-    pParse->iSelfTab = 0;
-  }
-#endif /* !defined(SQLITE_OMIT_CHECK) */
-
-  /* UNIQUE and PRIMARY KEY constraints should be handled in the following
-  ** order:
-  **
-  **   (1)  OE_Update
-  **   (2)  OE_Abort, OE_Fail, OE_Rollback, OE_Ignore
-  **   (3)  OE_Replace
-  **
-  ** OE_Fail and OE_Ignore must happen before any changes are made.
-  ** OE_Update guarantees that only a single row will change, so it
-  ** must happen before OE_Replace.  Technically, OE_Abort and OE_Rollback
-  ** could happen in any order, but they are grouped up front for
-  ** convenience.
-  **
-  ** 2018-08-14: Ticket https://www.sqlite.org/src/info/908f001483982c43
-  ** The order of constraints used to have OE_Update as (2) and OE_Abort
-  ** and so forth as (1). But apparently PostgreSQL checks the OE_Update
-  ** constraint before any others, so it had to be moved.
-  **
-  ** Constraint checking code is generated in this order:
-  **   (A)  The rowid constraint
-  **   (B)  Unique index constraints that do not have OE_Replace as their
-  **        default conflict resolution strategy
-  **   (C)  Unique index that do use OE_Replace by default.
-  **
-  ** The ordering of (2) and (3) is accomplished by making sure the linked
-  ** list of indexes attached to a table puts all OE_Replace indexes last
-  ** in the list.  See tdsqlite3CreateIndex() for where that happens.
-  */
-
-  if( pUpsert ){
-    if( pUpsert->pUpsertTarget==0 ){
-      /* An ON CONFLICT DO NOTHING clause, without a constraint-target.
-      ** Make all unique constraint resolution be OE_Ignore */
-      assert( pUpsert->pUpsertSet==0 );
-      overrideError = OE_Ignore;
-      pUpsert = 0;
-    }else if( (pUpIdx = pUpsert->pUpsertIdx)!=0 ){
-      /* If the constraint-target uniqueness check must be run first.
-      ** Jump to that uniqueness check now */
-      upsertJump = tdsqlite3VdbeAddOp0(v, OP_Goto);
-      VdbeComment((v, "UPSERT constraint goes first"));
-    }
-  }
-
-  /* Determine if it is possible that triggers (either explicitly coded
-  ** triggers or FK resolution actions) might run as a result of deletes
-  ** that happen when OE_Replace conflict resolution occurs. (Call these
-  ** "replace triggers".)  If any replace triggers run, we will need to
-  ** recheck all of the uniqueness constraints after they have all run.
-  ** But on the recheck, the resolution is OE_Abort instead of OE_Replace.
-  **
-  ** If replace triggers are a possibility, then
-  **
-  **   (1) Allocate register regTrigCnt and initialize it to zero.
-  **       That register will count the number of replace triggers that
-  **       fire.  Constraint recheck only occurs if the number is positive.
-  **   (2) Initialize pTrigger to the list of all DELETE triggers on pTab.
-  **   (3) Initialize addrRecheck and lblRecheckOk
-  **
-  ** The uniqueness rechecking code will create a series of tests to run
-  ** in a second pass.  The addrRecheck and lblRecheckOk variables are
-  ** used to link together these tests which are separated from each other
-  ** in the generate bytecode.
-  */
-  if( (db->flags & (SQLITE_RecTriggers|SQLITE_ForeignKeys))==0 ){
-    /* There are not DELETE triggers nor FK constraints.  No constraint
-    ** rechecks are needed. */
-    pTrigger = 0;
-    regTrigCnt = 0;
-  }else{
-    if( db->flags&SQLITE_RecTriggers ){
-      pTrigger = tdsqlite3TriggersExist(pParse, pTab, TK_DELETE, 0, 0);
-      regTrigCnt = pTrigger!=0 || tdsqlite3FkRequired(pParse, pTab, 0, 0);
-    }else{
-      pTrigger = 0;
-      regTrigCnt = tdsqlite3FkRequired(pParse, pTab, 0, 0);
-    }
-    if( regTrigCnt ){
-      /* Replace triggers might exist.  Allocate the counter and
-      ** initialize it to zero. */
-      regTrigCnt = ++pParse->nMem;
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regTrigCnt);
-      VdbeComment((v, "trigger count"));
-      lblRecheckOk = tdsqlite3VdbeMakeLabel(pParse);
-      addrRecheck = lblRecheckOk;
-    }
-  }
-
-  /* If rowid is changing, make sure the new rowid does not previously
-  ** exist in the table.
-  */
-  if( pkChng && pPk==0 ){
-    int addrRowidOk = tdsqlite3VdbeMakeLabel(pParse);
-
-    /* Figure out what action to take in case of a rowid collision */
-    onError = pTab->keyConf;
-    if( overrideError!=OE_Default ){
-      onError = overrideError;
-    }else if( onError==OE_Default ){
-      onError = OE_Abort;
-    }
-
-    /* figure out whether or not upsert applies in this case */
-    if( pUpsert && pUpsert->pUpsertIdx==0 ){
-      if( pUpsert->pUpsertSet==0 ){
-        onError = OE_Ignore;  /* DO NOTHING is the same as INSERT OR IGNORE */
-      }else{
-        onError = OE_Update;  /* DO UPDATE */
-      }
-    }
-
-    /* If the response to a rowid conflict is REPLACE but the response
-    ** to some other UNIQUE constraint is FAIL or IGNORE, then we need
-    ** to defer the running of the rowid conflict checking until after
-    ** the UNIQUE constraints have run.
-    */
-    if( onError==OE_Replace      /* IPK rule is REPLACE */
-     && onError!=overrideError   /* Rules for other contraints are different */
-     && pTab->pIndex             /* There exist other constraints */
-    ){
-      ipkTop = tdsqlite3VdbeAddOp0(v, OP_Goto)+1;
-      VdbeComment((v, "defer IPK REPLACE until last"));
-    }
-
-    if( isUpdate ){
-      /* pkChng!=0 does not mean that the rowid has changed, only that
-      ** it might have changed.  Skip the conflict logic below if the rowid
-      ** is unchanged. */
-      tdsqlite3VdbeAddOp3(v, OP_Eq, regNewData, addrRowidOk, regOldData);
-      tdsqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
-      VdbeCoverage(v);
-    }
-
-    /* Check to see if the new rowid already exists in the table.  Skip
-    ** the following conflict logic if it does not. */
-    VdbeNoopComment((v, "uniqueness check for ROWID"));
-    tdsqlite3VdbeVerifyAbortable(v, onError);
-    tdsqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, addrRowidOk, regNewData);
-    VdbeCoverage(v);
-
-    switch( onError ){
-      default: {
-        onError = OE_Abort;
-        /* Fall thru into the next case */
-      }
-      case OE_Rollback:
-      case OE_Abort:
-      case OE_Fail: {
-        testcase( onError==OE_Rollback );
-        testcase( onError==OE_Abort );
-        testcase( onError==OE_Fail );
-        tdsqlite3RowidConstraint(pParse, onError, pTab);
-        break;
-      }
-      case OE_Replace: {
-        /* If there are DELETE triggers on this table and the
-        ** recursive-triggers flag is set, call GenerateRowDelete() to
-        ** remove the conflicting row from the table. This will fire
-        ** the triggers and remove both the table and index b-tree entries.
-        **
-        ** Otherwise, if there are no triggers or the recursive-triggers
-        ** flag is not set, but the table has one or more indexes, call 
-        ** GenerateRowIndexDelete(). This removes the index b-tree entries 
-        ** only. The table b-tree entry will be replaced by the new entry 
-        ** when it is inserted.  
-        **
-        ** If either GenerateRowDelete() or GenerateRowIndexDelete() is called,
-        ** also invoke MultiWrite() to indicate that this VDBE may require
-        ** statement rollback (if the statement is aborted after the delete
-        ** takes place). Earlier versions called tdsqlite3MultiWrite() regardless,
-        ** but being more selective here allows statements like:
-        **
-        **   REPLACE INTO t(rowid) VALUES($newrowid)
-        **
-        ** to run without a statement journal if there are no indexes on the
-        ** table.
-        */
-        if( regTrigCnt ){
-          tdsqlite3MultiWrite(pParse);
-          tdsqlite3GenerateRowDelete(pParse, pTab, pTrigger, iDataCur, iIdxCur,
-                                   regNewData, 1, 0, OE_Replace, 1, -1);
-          tdsqlite3VdbeAddOp2(v, OP_AddImm, regTrigCnt, 1); /* incr trigger cnt */
-          nReplaceTrig++;
-        }else{
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-          assert( HasRowid(pTab) );
-          /* This OP_Delete opcode fires the pre-update-hook only. It does
-          ** not modify the b-tree. It is more efficient to let the coming
-          ** OP_Insert replace the existing entry than it is to delete the
-          ** existing entry and then insert a new one. */
-          tdsqlite3VdbeAddOp2(v, OP_Delete, iDataCur, OPFLAG_ISNOOP);
-          tdsqlite3VdbeAppendP4(v, pTab, P4_TABLE);
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-          if( pTab->pIndex ){
-            tdsqlite3MultiWrite(pParse);
-            tdsqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur,0,-1);
-          }
-        }
-        seenReplace = 1;
-        break;
-      }
-#ifndef SQLITE_OMIT_UPSERT
-      case OE_Update: {
-        tdsqlite3UpsertDoUpdate(pParse, pUpsert, pTab, 0, iDataCur);
-        /* Fall through */
-      }
-#endif
-      case OE_Ignore: {
-        testcase( onError==OE_Ignore );
-        tdsqlite3VdbeGoto(v, ignoreDest);
-        break;
-      }
-    }
-    tdsqlite3VdbeResolveLabel(v, addrRowidOk);
-    if( ipkTop ){
-      ipkBottom = tdsqlite3VdbeAddOp0(v, OP_Goto);
-      tdsqlite3VdbeJumpHere(v, ipkTop-1);
-    }
-  }
-
-  /* Test all UNIQUE constraints by creating entries for each UNIQUE
-  ** index and making sure that duplicate entries do not already exist.
-  ** Compute the revised record entries for indices as we go.
-  **
-  ** This loop also handles the case of the PRIMARY KEY index for a
-  ** WITHOUT ROWID table.
-  */
-  for(ix=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, ix++){
-    int regIdx;          /* Range of registers hold conent for pIdx */
-    int regR;            /* Range of registers holding conflicting PK */
-    int iThisCur;        /* Cursor for this UNIQUE index */
-    int addrUniqueOk;    /* Jump here if the UNIQUE constraint is satisfied */
-    int addrConflictCk;  /* First opcode in the conflict check logic */
-
-    if( aRegIdx[ix]==0 ) continue;  /* Skip indices that do not change */
-    if( pUpIdx==pIdx ){
-      addrUniqueOk = upsertJump+1;
-      upsertBypass = tdsqlite3VdbeGoto(v, 0);
-      VdbeComment((v, "Skip upsert subroutine"));
-      tdsqlite3VdbeJumpHere(v, upsertJump);
-    }else{
-      addrUniqueOk = tdsqlite3VdbeMakeLabel(pParse);
-    }
-    if( bAffinityDone==0 && (pUpIdx==0 || pUpIdx==pIdx) ){
-      tdsqlite3TableAffinity(v, pTab, regNewData+1);
-      bAffinityDone = 1;
-    }
-    VdbeNoopComment((v, "uniqueness check for %s", pIdx->zName));
-    iThisCur = iIdxCur+ix;
-
-
-    /* Skip partial indices for which the WHERE clause is not true */
-    if( pIdx->pPartIdxWhere ){
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, aRegIdx[ix]);
-      pParse->iSelfTab = -(regNewData+1);
-      tdsqlite3ExprIfFalseDup(pParse, pIdx->pPartIdxWhere, addrUniqueOk,
-                            SQLITE_JUMPIFNULL);
-      pParse->iSelfTab = 0;
-    }
-
-    /* Create a record for this index entry as it should appear after
-    ** the insert or update.  Store that record in the aRegIdx[ix] register
-    */
-    regIdx = aRegIdx[ix]+1;
-    for(i=0; i<pIdx->nColumn; i++){
-      int iField = pIdx->aiColumn[i];
-      int x;
-      if( iField==XN_EXPR ){
-        pParse->iSelfTab = -(regNewData+1);
-        tdsqlite3ExprCodeCopy(pParse, pIdx->aColExpr->a[i].pExpr, regIdx+i);
-        pParse->iSelfTab = 0;
-        VdbeComment((v, "%s column %d", pIdx->zName, i));
-      }else if( iField==XN_ROWID || iField==pTab->iPKey ){
-        x = regNewData;
-        tdsqlite3VdbeAddOp2(v, OP_IntCopy, x, regIdx+i);
-        VdbeComment((v, "rowid"));
-      }else{
-        testcase( tdsqlite3TableColumnToStorage(pTab, iField)!=iField );
-        x = tdsqlite3TableColumnToStorage(pTab, iField) + regNewData + 1;
-        tdsqlite3VdbeAddOp2(v, OP_SCopy, x, regIdx+i);
-        VdbeComment((v, "%s", pTab->aCol[iField].zName));
-      }
-    }
-    tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regIdx, pIdx->nColumn, aRegIdx[ix]);
-    VdbeComment((v, "for %s", pIdx->zName));
-#ifdef SQLITE_ENABLE_NULL_TRIM
-    if( pIdx->idxType==SQLITE_IDXTYPE_PRIMARYKEY ){
-      tdsqlite3SetMakeRecordP5(v, pIdx->pTable);
-    }
-#endif
-    tdsqlite3VdbeReleaseRegisters(pParse, regIdx, pIdx->nColumn, 0, 0);
-
-    /* In an UPDATE operation, if this index is the PRIMARY KEY index 
-    ** of a WITHOUT ROWID table and there has been no change the
-    ** primary key, then no collision is possible.  The collision detection
-    ** logic below can all be skipped. */
-    if( isUpdate && pPk==pIdx && pkChng==0 ){
-      tdsqlite3VdbeResolveLabel(v, addrUniqueOk);
-      continue;
-    }
-
-    /* Find out what action to take in case there is a uniqueness conflict */
-    onError = pIdx->onError;
-    if( onError==OE_None ){ 
-      tdsqlite3VdbeResolveLabel(v, addrUniqueOk);
-      continue;  /* pIdx is not a UNIQUE index */
-    }
-    if( overrideError!=OE_Default ){
-      onError = overrideError;
-    }else if( onError==OE_Default ){
-      onError = OE_Abort;
-    }
-
-    /* Figure out if the upsert clause applies to this index */
-    if( pUpIdx==pIdx ){
-      if( pUpsert->pUpsertSet==0 ){
-        onError = OE_Ignore;  /* DO NOTHING is the same as INSERT OR IGNORE */
-      }else{
-        onError = OE_Update;  /* DO UPDATE */
-      }
-    }
-
-    /* Collision detection may be omitted if all of the following are true:
-    **   (1) The conflict resolution algorithm is REPLACE
-    **   (2) The table is a WITHOUT ROWID table
-    **   (3) There are no secondary indexes on the table
-    **   (4) No delete triggers need to be fired if there is a conflict
-    **   (5) No FK constraint counters need to be updated if a conflict occurs.
-    **
-    ** This is not possible for ENABLE_PREUPDATE_HOOK builds, as the row
-    ** must be explicitly deleted in order to ensure any pre-update hook
-    ** is invoked.  */ 
-#ifndef SQLITE_ENABLE_PREUPDATE_HOOK
-    if( (ix==0 && pIdx->pNext==0)                   /* Condition 3 */
-     && pPk==pIdx                                   /* Condition 2 */
-     && onError==OE_Replace                         /* Condition 1 */
-     && ( 0==(db->flags&SQLITE_RecTriggers) ||      /* Condition 4 */
-          0==tdsqlite3TriggersExist(pParse, pTab, TK_DELETE, 0, 0))
-     && ( 0==(db->flags&SQLITE_ForeignKeys) ||      /* Condition 5 */
-         (0==pTab->pFKey && 0==tdsqlite3FkReferences(pTab)))
-    ){
-      tdsqlite3VdbeResolveLabel(v, addrUniqueOk);
-      continue;
-    }
-#endif /* ifndef SQLITE_ENABLE_PREUPDATE_HOOK */
-
-    /* Check to see if the new index entry will be unique */
-    tdsqlite3VdbeVerifyAbortable(v, onError);
-    addrConflictCk = 
-      tdsqlite3VdbeAddOp4Int(v, OP_NoConflict, iThisCur, addrUniqueOk,
-                           regIdx, pIdx->nKeyCol); VdbeCoverage(v);
-
-    /* Generate code to handle collisions */
-    regR = (pIdx==pPk) ? regIdx : tdsqlite3GetTempRange(pParse, nPkField);
-    if( isUpdate || onError==OE_Replace ){
-      if( HasRowid(pTab) ){
-        tdsqlite3VdbeAddOp2(v, OP_IdxRowid, iThisCur, regR);
-        /* Conflict only if the rowid of the existing index entry
-        ** is different from old-rowid */
-        if( isUpdate ){
-          tdsqlite3VdbeAddOp3(v, OP_Eq, regR, addrUniqueOk, regOldData);
-          tdsqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
-          VdbeCoverage(v);
-        }
-      }else{
-        int x;
-        /* Extract the PRIMARY KEY from the end of the index entry and
-        ** store it in registers regR..regR+nPk-1 */
-        if( pIdx!=pPk ){
-          for(i=0; i<pPk->nKeyCol; i++){
-            assert( pPk->aiColumn[i]>=0 );
-            x = tdsqlite3TableColumnToIndex(pIdx, pPk->aiColumn[i]);
-            tdsqlite3VdbeAddOp3(v, OP_Column, iThisCur, x, regR+i);
-            VdbeComment((v, "%s.%s", pTab->zName,
-                         pTab->aCol[pPk->aiColumn[i]].zName));
-          }
-        }
-        if( isUpdate ){
-          /* If currently processing the PRIMARY KEY of a WITHOUT ROWID 
-          ** table, only conflict if the new PRIMARY KEY values are actually
-          ** different from the old.
-          **
-          ** For a UNIQUE index, only conflict if the PRIMARY KEY values
-          ** of the matched index row are different from the original PRIMARY
-          ** KEY values of this row before the update.  */
-          int addrJump = tdsqlite3VdbeCurrentAddr(v)+pPk->nKeyCol;
-          int op = OP_Ne;
-          int regCmp = (IsPrimaryKeyIndex(pIdx) ? regIdx : regR);
-  
-          for(i=0; i<pPk->nKeyCol; i++){
-            char *p4 = (char*)tdsqlite3LocateCollSeq(pParse, pPk->azColl[i]);
-            x = pPk->aiColumn[i];
-            assert( x>=0 );
-            if( i==(pPk->nKeyCol-1) ){
-              addrJump = addrUniqueOk;
-              op = OP_Eq;
-            }
-            x = tdsqlite3TableColumnToStorage(pTab, x);
-            tdsqlite3VdbeAddOp4(v, op, 
-                regOldData+1+x, addrJump, regCmp+i, p4, P4_COLLSEQ
-            );
-            tdsqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
-            VdbeCoverageIf(v, op==OP_Eq);
-            VdbeCoverageIf(v, op==OP_Ne);
-          }
-        }
-      }
-    }
-
-    /* Generate code that executes if the new index entry is not unique */
-    assert( onError==OE_Rollback || onError==OE_Abort || onError==OE_Fail
-        || onError==OE_Ignore || onError==OE_Replace || onError==OE_Update );
-    switch( onError ){
-      case OE_Rollback:
-      case OE_Abort:
-      case OE_Fail: {
-        testcase( onError==OE_Rollback );
-        testcase( onError==OE_Abort );
-        testcase( onError==OE_Fail );
-        tdsqlite3UniqueConstraint(pParse, onError, pIdx);
-        break;
-      }
-#ifndef SQLITE_OMIT_UPSERT
-      case OE_Update: {
-        tdsqlite3UpsertDoUpdate(pParse, pUpsert, pTab, pIdx, iIdxCur+ix);
-        /* Fall through */
-      }
-#endif
-      case OE_Ignore: {
-        testcase( onError==OE_Ignore );
-        tdsqlite3VdbeGoto(v, ignoreDest);
-        break;
-      }
-      default: {
-        int nConflictCk;   /* Number of opcodes in conflict check logic */
-
-        assert( onError==OE_Replace );
-        nConflictCk = tdsqlite3VdbeCurrentAddr(v) - addrConflictCk;
-        assert( nConflictCk>0 );
-        testcase( nConflictCk>1 );
-        if( regTrigCnt ){
-          tdsqlite3MultiWrite(pParse);
-          nReplaceTrig++;
-        }
-        if( pTrigger && isUpdate ){
-          tdsqlite3VdbeAddOp1(v, OP_CursorLock, iDataCur);
-        }
-        tdsqlite3GenerateRowDelete(pParse, pTab, pTrigger, iDataCur, iIdxCur,
-            regR, nPkField, 0, OE_Replace,
-            (pIdx==pPk ? ONEPASS_SINGLE : ONEPASS_OFF), iThisCur);
-        if( pTrigger && isUpdate ){
-          tdsqlite3VdbeAddOp1(v, OP_CursorUnlock, iDataCur);
-        }
-        if( regTrigCnt ){
-          int addrBypass;  /* Jump destination to bypass recheck logic */
-
-          tdsqlite3VdbeAddOp2(v, OP_AddImm, regTrigCnt, 1); /* incr trigger cnt */
-          addrBypass = tdsqlite3VdbeAddOp0(v, OP_Goto);  /* Bypass recheck */
-          VdbeComment((v, "bypass recheck"));
-
-          /* Here we insert code that will be invoked after all constraint
-          ** checks have run, if and only if one or more replace triggers
-          ** fired. */
-          tdsqlite3VdbeResolveLabel(v, lblRecheckOk);
-          lblRecheckOk = tdsqlite3VdbeMakeLabel(pParse);
-          if( pIdx->pPartIdxWhere ){
-            /* Bypass the recheck if this partial index is not defined
-            ** for the current row */
-            tdsqlite3VdbeAddOp2(v, OP_IsNull, regIdx-1, lblRecheckOk);
-            VdbeCoverage(v);
-          }
-          /* Copy the constraint check code from above, except change
-          ** the constraint-ok jump destination to be the address of
-          ** the next retest block */
-          while( nConflictCk>0 ){
-            VdbeOp x;    /* Conflict check opcode to copy */
-            /* The tdsqlite3VdbeAddOp4() call might reallocate the opcode array.
-            ** Hence, make a complete copy of the opcode, rather than using
-            ** a pointer to the opcode. */
-            x = *tdsqlite3VdbeGetOp(v, addrConflictCk);
-            if( x.opcode!=OP_IdxRowid ){
-              int p2;      /* New P2 value for copied conflict check opcode */
-              if( tdsqlite3OpcodeProperty[x.opcode]&OPFLG_JUMP ){
-                p2 = lblRecheckOk;
-              }else{
-                p2 = x.p2;
-              }
-              tdsqlite3VdbeAddOp4(v, x.opcode, x.p1, p2, x.p3, x.p4.z, x.p4type);
-              tdsqlite3VdbeChangeP5(v, x.p5);
-              VdbeCoverageIf(v, p2!=x.p2);
-            }
-            nConflictCk--;
-            addrConflictCk++;
-          }
-          /* If the retest fails, issue an abort */
-          tdsqlite3UniqueConstraint(pParse, OE_Abort, pIdx);
-
-          tdsqlite3VdbeJumpHere(v, addrBypass); /* Terminate the recheck bypass */
-        }
-        seenReplace = 1;
-        break;
-      }
-    }
-    if( pUpIdx==pIdx ){
-      tdsqlite3VdbeGoto(v, upsertJump+1);
-      tdsqlite3VdbeJumpHere(v, upsertBypass);
-    }else{
-      tdsqlite3VdbeResolveLabel(v, addrUniqueOk);
-    }
-    if( regR!=regIdx ) tdsqlite3ReleaseTempRange(pParse, regR, nPkField);
-  }
-
-  /* If the IPK constraint is a REPLACE, run it last */
-  if( ipkTop ){
-    tdsqlite3VdbeGoto(v, ipkTop);
-    VdbeComment((v, "Do IPK REPLACE"));
-    tdsqlite3VdbeJumpHere(v, ipkBottom);
-  }
-
-  /* Recheck all uniqueness constraints after replace triggers have run */
-  testcase( regTrigCnt!=0 && nReplaceTrig==0 );
-  assert( regTrigCnt!=0 || nReplaceTrig==0 );
-  if( nReplaceTrig ){
-    tdsqlite3VdbeAddOp2(v, OP_IfNot, regTrigCnt, lblRecheckOk);VdbeCoverage(v);
-    if( !pPk ){
-      if( isUpdate ){
-        tdsqlite3VdbeAddOp3(v, OP_Eq, regNewData, addrRecheck, regOldData);
-        tdsqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
-        VdbeCoverage(v);
-      }
-      tdsqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, addrRecheck, regNewData);
-      VdbeCoverage(v);
-      tdsqlite3RowidConstraint(pParse, OE_Abort, pTab);
-    }else{
-      tdsqlite3VdbeGoto(v, addrRecheck);
-    }
-    tdsqlite3VdbeResolveLabel(v, lblRecheckOk);
-  }
-
-  /* Generate the table record */
-  if( HasRowid(pTab) ){
-    int regRec = aRegIdx[ix];
-    tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regNewData+1, pTab->nNVCol, regRec);
-    tdsqlite3SetMakeRecordP5(v, pTab);
-    if( !bAffinityDone ){
-      tdsqlite3TableAffinity(v, pTab, 0);
-    }
-  }
-
-  *pbMayReplace = seenReplace;
-  VdbeModuleComment((v, "END: GenCnstCks(%d)", seenReplace));
-}
-
-#ifdef SQLITE_ENABLE_NULL_TRIM
-/*
-** Change the P5 operand on the last opcode (which should be an OP_MakeRecord)
-** to be the number of columns in table pTab that must not be NULL-trimmed.
-**
-** Or if no columns of pTab may be NULL-trimmed, leave P5 at zero.
-*/
-SQLITE_PRIVATE void tdsqlite3SetMakeRecordP5(Vdbe *v, Table *pTab){
-  u16 i;
-
-  /* Records with omitted columns are only allowed for schema format
-  ** version 2 and later (SQLite version 3.1.4, 2005-02-20). */
-  if( pTab->pSchema->file_format<2 ) return;
-
-  for(i=pTab->nCol-1; i>0; i--){
-    if( pTab->aCol[i].pDflt!=0 ) break;
-    if( pTab->aCol[i].colFlags & COLFLAG_PRIMKEY ) break;
-  }
-  tdsqlite3VdbeChangeP5(v, i+1);
-}
-#endif
-
-/*
-** This routine generates code to finish the INSERT or UPDATE operation
-** that was started by a prior call to tdsqlite3GenerateConstraintChecks.
-** A consecutive range of registers starting at regNewData contains the
-** rowid and the content to be inserted.
-**
-** The arguments to this routine should be the same as the first six
-** arguments to tdsqlite3GenerateConstraintChecks.
-*/
-SQLITE_PRIVATE void tdsqlite3CompleteInsertion(
-  Parse *pParse,      /* The parser context */
-  Table *pTab,        /* the table into which we are inserting */
-  int iDataCur,       /* Cursor of the canonical data source */
-  int iIdxCur,        /* First index cursor */
-  int regNewData,     /* Range of content */
-  int *aRegIdx,       /* Register used by each index.  0 for unused indices */
-  int update_flags,   /* True for UPDATE, False for INSERT */
-  int appendBias,     /* True if this is likely to be an append */
-  int useSeekResult   /* True to set the USESEEKRESULT flag on OP_[Idx]Insert */
-){
-  Vdbe *v;            /* Prepared statements under construction */
-  Index *pIdx;        /* An index being inserted or updated */
-  u8 pik_flags;       /* flag values passed to the btree insert */
-  int i;              /* Loop counter */
-
-  assert( update_flags==0
-       || update_flags==OPFLAG_ISUPDATE
-       || update_flags==(OPFLAG_ISUPDATE|OPFLAG_SAVEPOSITION)
-  );
-
-  v = tdsqlite3GetVdbe(pParse);
-  assert( v!=0 );
-  assert( pTab->pSelect==0 );  /* This table is not a VIEW */
-  for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
-    /* All REPLACE indexes are at the end of the list */
-    assert( pIdx->onError!=OE_Replace
-         || pIdx->pNext==0
-         || pIdx->pNext->onError==OE_Replace );
-    if( aRegIdx[i]==0 ) continue;
-    if( pIdx->pPartIdxWhere ){
-      tdsqlite3VdbeAddOp2(v, OP_IsNull, aRegIdx[i], tdsqlite3VdbeCurrentAddr(v)+2);
-      VdbeCoverage(v);
-    }
-    pik_flags = (useSeekResult ? OPFLAG_USESEEKRESULT : 0);
-    if( IsPrimaryKeyIndex(pIdx) && !HasRowid(pTab) ){
-      assert( pParse->nested==0 );
-      pik_flags |= OPFLAG_NCHANGE;
-      pik_flags |= (update_flags & OPFLAG_SAVEPOSITION);
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-      if( update_flags==0 ){
-        int r = tdsqlite3GetTempReg(pParse);
-        tdsqlite3VdbeAddOp2(v, OP_Integer, 0, r);
-        tdsqlite3VdbeAddOp4(v, OP_Insert, 
-            iIdxCur+i, aRegIdx[i], r, (char*)pTab, P4_TABLE
-        );
-        tdsqlite3VdbeChangeP5(v, OPFLAG_ISNOOP);
-        tdsqlite3ReleaseTempReg(pParse, r);
-      }
-#endif
-    }
-    tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iIdxCur+i, aRegIdx[i],
-                         aRegIdx[i]+1,
-                         pIdx->uniqNotNull ? pIdx->nKeyCol: pIdx->nColumn);
-    tdsqlite3VdbeChangeP5(v, pik_flags);
-  }
-  if( !HasRowid(pTab) ) return;
-  if( pParse->nested ){
-    pik_flags = 0;
-  }else{
-    pik_flags = OPFLAG_NCHANGE;
-    pik_flags |= (update_flags?update_flags:OPFLAG_LASTROWID);
-  }
-  if( appendBias ){
-    pik_flags |= OPFLAG_APPEND;
-  }
-  if( useSeekResult ){
-    pik_flags |= OPFLAG_USESEEKRESULT;
-  }
-  tdsqlite3VdbeAddOp3(v, OP_Insert, iDataCur, aRegIdx[i], regNewData);
-  if( !pParse->nested ){
-    tdsqlite3VdbeAppendP4(v, pTab, P4_TABLE);
-  }
-  tdsqlite3VdbeChangeP5(v, pik_flags);
-}
-
-/*
-** Allocate cursors for the pTab table and all its indices and generate
-** code to open and initialized those cursors.
-**
-** The cursor for the object that contains the complete data (normally
-** the table itself, but the PRIMARY KEY index in the case of a WITHOUT
-** ROWID table) is returned in *piDataCur.  The first index cursor is
-** returned in *piIdxCur.  The number of indices is returned.
-**
-** Use iBase as the first cursor (either the *piDataCur for rowid tables
-** or the first index for WITHOUT ROWID tables) if it is non-negative.
-** If iBase is negative, then allocate the next available cursor.
-**
-** For a rowid table, *piDataCur will be exactly one less than *piIdxCur.
-** For a WITHOUT ROWID table, *piDataCur will be somewhere in the range
-** of *piIdxCurs, depending on where the PRIMARY KEY index appears on the
-** pTab->pIndex list.
-**
-** If pTab is a virtual table, then this routine is a no-op and the
-** *piDataCur and *piIdxCur values are left uninitialized.
-*/
-SQLITE_PRIVATE int tdsqlite3OpenTableAndIndices(
-  Parse *pParse,   /* Parsing context */
-  Table *pTab,     /* Table to be opened */
-  int op,          /* OP_OpenRead or OP_OpenWrite */
-  u8 p5,           /* P5 value for OP_Open* opcodes (except on WITHOUT ROWID) */
-  int iBase,       /* Use this for the table cursor, if there is one */
-  u8 *aToOpen,     /* If not NULL: boolean for each table and index */
-  int *piDataCur,  /* Write the database source cursor number here */
-  int *piIdxCur    /* Write the first index cursor number here */
-){
-  int i;
-  int iDb;
-  int iDataCur;
-  Index *pIdx;
-  Vdbe *v;
-
-  assert( op==OP_OpenRead || op==OP_OpenWrite );
-  assert( op==OP_OpenWrite || p5==0 );
-  if( IsVirtual(pTab) ){
-    /* This routine is a no-op for virtual tables. Leave the output
-    ** variables *piDataCur and *piIdxCur uninitialized so that valgrind
-    ** can detect if they are used by mistake in the caller. */
-    return 0;
-  }
-  iDb = tdsqlite3SchemaToIndex(pParse->db, pTab->pSchema);
-  v = tdsqlite3GetVdbe(pParse);
-  assert( v!=0 );
-  if( iBase<0 ) iBase = pParse->nTab;
-  iDataCur = iBase++;
-  if( piDataCur ) *piDataCur = iDataCur;
-  if( HasRowid(pTab) && (aToOpen==0 || aToOpen[0]) ){
-    tdsqlite3OpenTable(pParse, iDataCur, iDb, pTab, op);
-  }else{
-    tdsqlite3TableLock(pParse, iDb, pTab->tnum, op==OP_OpenWrite, pTab->zName);
-  }
-  if( piIdxCur ) *piIdxCur = iBase;
-  for(i=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, i++){
-    int iIdxCur = iBase++;
-    assert( pIdx->pSchema==pTab->pSchema );
-    if( IsPrimaryKeyIndex(pIdx) && !HasRowid(pTab) ){
-      if( piDataCur ) *piDataCur = iIdxCur;
-      p5 = 0;
-    }
-    if( aToOpen==0 || aToOpen[i+1] ){
-      tdsqlite3VdbeAddOp3(v, op, iIdxCur, pIdx->tnum, iDb);
-      tdsqlite3VdbeSetP4KeyInfo(pParse, pIdx);
-      tdsqlite3VdbeChangeP5(v, p5);
-      VdbeComment((v, "%s", pIdx->zName));
-    }
-  }
-  if( iBase>pParse->nTab ) pParse->nTab = iBase;
-  return i;
-}
-
-
-#ifdef SQLITE_TEST
-/*
-** The following global variable is incremented whenever the
-** transfer optimization is used.  This is used for testing
-** purposes only - to make sure the transfer optimization really
-** is happening when it is supposed to.
-*/
-SQLITE_API int tdsqlite3_xferopt_count;
-#endif /* SQLITE_TEST */
-
-
-#ifndef SQLITE_OMIT_XFER_OPT
-/*
-** Check to see if index pSrc is compatible as a source of data
-** for index pDest in an insert transfer optimization.  The rules
-** for a compatible index:
-**
-**    *   The index is over the same set of columns
-**    *   The same DESC and ASC markings occurs on all columns
-**    *   The same onError processing (OE_Abort, OE_Ignore, etc)
-**    *   The same collating sequence on each column
-**    *   The index has the exact same WHERE clause
-*/
-static int xferCompatibleIndex(Index *pDest, Index *pSrc){
-  int i;
-  assert( pDest && pSrc );
-  assert( pDest->pTable!=pSrc->pTable );
-  if( pDest->nKeyCol!=pSrc->nKeyCol || pDest->nColumn!=pSrc->nColumn ){
-    return 0;   /* Different number of columns */
-  }
-  if( pDest->onError!=pSrc->onError ){
-    return 0;   /* Different conflict resolution strategies */
-  }
-  for(i=0; i<pSrc->nKeyCol; i++){
-    if( pSrc->aiColumn[i]!=pDest->aiColumn[i] ){
-      return 0;   /* Different columns indexed */
-    }
-    if( pSrc->aiColumn[i]==XN_EXPR ){
-      assert( pSrc->aColExpr!=0 && pDest->aColExpr!=0 );
-      if( tdsqlite3ExprCompare(0, pSrc->aColExpr->a[i].pExpr,
-                             pDest->aColExpr->a[i].pExpr, -1)!=0 ){
-        return 0;   /* Different expressions in the index */
-      }
-    }
-    if( pSrc->aSortOrder[i]!=pDest->aSortOrder[i] ){
-      return 0;   /* Different sort orders */
-    }
-    if( tdsqlite3_stricmp(pSrc->azColl[i],pDest->azColl[i])!=0 ){
-      return 0;   /* Different collating sequences */
-    }
-  }
-  if( tdsqlite3ExprCompare(0, pSrc->pPartIdxWhere, pDest->pPartIdxWhere, -1) ){
-    return 0;     /* Different WHERE clauses */
-  }
-
-  /* If no test above fails then the indices must be compatible */
-  return 1;
-}
-
-/*
-** Attempt the transfer optimization on INSERTs of the form
-**
-**     INSERT INTO tab1 SELECT * FROM tab2;
-**
-** The xfer optimization transfers raw records from tab2 over to tab1.  
-** Columns are not decoded and reassembled, which greatly improves
-** performance.  Raw index records are transferred in the same way.
-**
-** The xfer optimization is only attempted if tab1 and tab2 are compatible.
-** There are lots of rules for determining compatibility - see comments
-** embedded in the code for details.
-**
-** This routine returns TRUE if the optimization is guaranteed to be used.
-** Sometimes the xfer optimization will only work if the destination table
-** is empty - a factor that can only be determined at run-time.  In that
-** case, this routine generates code for the xfer optimization but also
-** does a test to see if the destination table is empty and jumps over the
-** xfer optimization code if the test fails.  In that case, this routine
-** returns FALSE so that the caller will know to go ahead and generate
-** an unoptimized transfer.  This routine also returns FALSE if there
-** is no chance that the xfer optimization can be applied.
-**
-** This optimization is particularly useful at making VACUUM run faster.
-*/
-static int xferOptimization(
-  Parse *pParse,        /* Parser context */
-  Table *pDest,         /* The table we are inserting into */
-  Select *pSelect,      /* A SELECT statement to use as the data source */
-  int onError,          /* How to handle constraint errors */
-  int iDbDest           /* The database of pDest */
-){
-  tdsqlite3 *db = pParse->db;
-  ExprList *pEList;                /* The result set of the SELECT */
-  Table *pSrc;                     /* The table in the FROM clause of SELECT */
-  Index *pSrcIdx, *pDestIdx;       /* Source and destination indices */
-  struct SrcList_item *pItem;      /* An element of pSelect->pSrc */
-  int i;                           /* Loop counter */
-  int iDbSrc;                      /* The database of pSrc */
-  int iSrc, iDest;                 /* Cursors from source and destination */
-  int addr1, addr2;                /* Loop addresses */
-  int emptyDestTest = 0;           /* Address of test for empty pDest */
-  int emptySrcTest = 0;            /* Address of test for empty pSrc */
-  Vdbe *v;                         /* The VDBE we are building */
-  int regAutoinc;                  /* Memory register used by AUTOINC */
-  int destHasUniqueIdx = 0;        /* True if pDest has a UNIQUE index */
-  int regData, regRowid;           /* Registers holding data and rowid */
-
-  if( pSelect==0 ){
-    return 0;   /* Must be of the form  INSERT INTO ... SELECT ... */
-  }
-  if( pParse->pWith || pSelect->pWith ){
-    /* Do not attempt to process this query if there are an WITH clauses
-    ** attached to it. Proceeding may generate a false "no such table: xxx"
-    ** error if pSelect reads from a CTE named "xxx".  */
-    return 0;
-  }
-  if( tdsqlite3TriggerList(pParse, pDest) ){
-    return 0;   /* tab1 must not have triggers */
-  }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( IsVirtual(pDest) ){
-    return 0;   /* tab1 must not be a virtual table */
-  }
-#endif
-  if( onError==OE_Default ){
-    if( pDest->iPKey>=0 ) onError = pDest->keyConf;
-    if( onError==OE_Default ) onError = OE_Abort;
-  }
-  assert(pSelect->pSrc);   /* allocated even if there is no FROM clause */
-  if( pSelect->pSrc->nSrc!=1 ){
-    return 0;   /* FROM clause must have exactly one term */
-  }
-  if( pSelect->pSrc->a[0].pSelect ){
-    return 0;   /* FROM clause cannot contain a subquery */
-  }
-  if( pSelect->pWhere ){
-    return 0;   /* SELECT may not have a WHERE clause */
-  }
-  if( pSelect->pOrderBy ){
-    return 0;   /* SELECT may not have an ORDER BY clause */
-  }
-  /* Do not need to test for a HAVING clause.  If HAVING is present but
-  ** there is no ORDER BY, we will get an error. */
-  if( pSelect->pGroupBy ){
-    return 0;   /* SELECT may not have a GROUP BY clause */
-  }
-  if( pSelect->pLimit ){
-    return 0;   /* SELECT may not have a LIMIT clause */
-  }
-  if( pSelect->pPrior ){
-    return 0;   /* SELECT may not be a compound query */
-  }
-  if( pSelect->selFlags & SF_Distinct ){
-    return 0;   /* SELECT may not be DISTINCT */
-  }
-  pEList = pSelect->pEList;
-  assert( pEList!=0 );
-  if( pEList->nExpr!=1 ){
-    return 0;   /* The result set must have exactly one column */
-  }
-  assert( pEList->a[0].pExpr );
-  if( pEList->a[0].pExpr->op!=TK_ASTERISK ){
-    return 0;   /* The result set must be the special operator "*" */
-  }
-
-  /* At this point we have established that the statement is of the
-  ** correct syntactic form to participate in this optimization.  Now
-  ** we have to check the semantics.
-  */
-  pItem = pSelect->pSrc->a;
-  pSrc = tdsqlite3LocateTableItem(pParse, 0, pItem);
-  if( pSrc==0 ){
-    return 0;   /* FROM clause does not contain a real table */
-  }
-  if( pSrc->tnum==pDest->tnum && pSrc->pSchema==pDest->pSchema ){
-    testcase( pSrc!=pDest ); /* Possible due to bad sqlite_master.rootpage */
-    return 0;   /* tab1 and tab2 may not be the same table */
-  }
-  if( HasRowid(pDest)!=HasRowid(pSrc) ){
-    return 0;   /* source and destination must both be WITHOUT ROWID or not */
-  }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if( IsVirtual(pSrc) ){
-    return 0;   /* tab2 must not be a virtual table */
-  }
-#endif
-  if( pSrc->pSelect ){
-    return 0;   /* tab2 may not be a view */
-  }
-  if( pDest->nCol!=pSrc->nCol ){
-    return 0;   /* Number of columns must be the same in tab1 and tab2 */
-  }
-  if( pDest->iPKey!=pSrc->iPKey ){
-    return 0;   /* Both tables must have the same INTEGER PRIMARY KEY */
-  }
-  for(i=0; i<pDest->nCol; i++){
-    Column *pDestCol = &pDest->aCol[i];
-    Column *pSrcCol = &pSrc->aCol[i];
-#ifdef SQLITE_ENABLE_HIDDEN_COLUMNS
-    if( (db->mDbFlags & DBFLAG_Vacuum)==0 
-     && (pDestCol->colFlags | pSrcCol->colFlags) & COLFLAG_HIDDEN 
-    ){
-      return 0;    /* Neither table may have __hidden__ columns */
-    }
-#endif
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-    /* Even if tables t1 and t2 have identical schemas, if they contain
-    ** generated columns, then this statement is semantically incorrect:
-    **
-    **     INSERT INTO t2 SELECT * FROM t1;
-    **
-    ** The reason is that generated column values are returned by the
-    ** the SELECT statement on the right but the INSERT statement on the
-    ** left wants them to be omitted.
-    **
-    ** Nevertheless, this is a useful notational shorthand to tell SQLite
-    ** to do a bulk transfer all of the content from t1 over to t2.
-    ** 
-    ** We could, in theory, disable this (except for internal use by the
-    ** VACUUM command where it is actually needed).  But why do that?  It
-    ** seems harmless enough, and provides a useful service.
-    */
-    if( (pDestCol->colFlags & COLFLAG_GENERATED) !=
-        (pSrcCol->colFlags & COLFLAG_GENERATED) ){
-      return 0;    /* Both columns have the same generated-column type */
-    }
-    /* But the transfer is only allowed if both the source and destination
-    ** tables have the exact same expressions for generated columns.
-    ** This requirement could be relaxed for VIRTUAL columns, I suppose.
-    */
-    if( (pDestCol->colFlags & COLFLAG_GENERATED)!=0 ){
-      if( tdsqlite3ExprCompare(0, pSrcCol->pDflt, pDestCol->pDflt, -1)!=0 ){
-        testcase( pDestCol->colFlags & COLFLAG_VIRTUAL );
-        testcase( pDestCol->colFlags & COLFLAG_STORED );
-        return 0;  /* Different generator expressions */
-      }
-    }
-#endif
-    if( pDestCol->affinity!=pSrcCol->affinity ){
-      return 0;    /* Affinity must be the same on all columns */
-    }
-    if( tdsqlite3_stricmp(pDestCol->zColl, pSrcCol->zColl)!=0 ){
-      return 0;    /* Collating sequence must be the same on all columns */
-    }
-    if( pDestCol->notNull && !pSrcCol->notNull ){
-      return 0;    /* tab2 must be NOT NULL if tab1 is */
-    }
-    /* Default values for second and subsequent columns need to match. */
-    if( (pDestCol->colFlags & COLFLAG_GENERATED)==0 && i>0 ){
-      assert( pDestCol->pDflt==0 || pDestCol->pDflt->op==TK_SPAN );
-      assert( pSrcCol->pDflt==0 || pSrcCol->pDflt->op==TK_SPAN );
-      if( (pDestCol->pDflt==0)!=(pSrcCol->pDflt==0) 
-       || (pDestCol->pDflt && strcmp(pDestCol->pDflt->u.zToken,
-                                       pSrcCol->pDflt->u.zToken)!=0)
-      ){
-        return 0;    /* Default values must be the same for all columns */
-      }
-    }
-  }
-  for(pDestIdx=pDest->pIndex; pDestIdx; pDestIdx=pDestIdx->pNext){
-    if( IsUniqueIndex(pDestIdx) ){
-      destHasUniqueIdx = 1;
-    }
-    for(pSrcIdx=pSrc->pIndex; pSrcIdx; pSrcIdx=pSrcIdx->pNext){
-      if( xferCompatibleIndex(pDestIdx, pSrcIdx) ) break;
-    }
-    if( pSrcIdx==0 ){
-      return 0;    /* pDestIdx has no corresponding index in pSrc */
-    }
-    if( pSrcIdx->tnum==pDestIdx->tnum && pSrc->pSchema==pDest->pSchema
-         && tdsqlite3FaultSim(411)==SQLITE_OK ){
-      /* The tdsqlite3FaultSim() call allows this corruption test to be
-      ** bypassed during testing, in order to exercise other corruption tests
-      ** further downstream. */
-      return 0;   /* Corrupt schema - two indexes on the same btree */
-    }
-  }
-#ifndef SQLITE_OMIT_CHECK
-  if( pDest->pCheck && tdsqlite3ExprListCompare(pSrc->pCheck,pDest->pCheck,-1) ){
-    return 0;   /* Tables have different CHECK constraints.  Ticket #2252 */
-  }
-#endif
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-  /* Disallow the transfer optimization if the destination table constains
-  ** any foreign key constraints.  This is more restrictive than necessary.
-  ** But the main beneficiary of the transfer optimization is the VACUUM 
-  ** command, and the VACUUM command disables foreign key constraints.  So
-  ** the extra complication to make this rule less restrictive is probably
-  ** not worth the effort.  Ticket [6284df89debdfa61db8073e062908af0c9b6118e]
-  */
-  if( (db->flags & SQLITE_ForeignKeys)!=0 && pDest->pFKey!=0 ){
-    return 0;
-  }
-#endif
-  if( (db->flags & SQLITE_CountRows)!=0 ){
-    return 0;  /* xfer opt does not play well with PRAGMA count_changes */
-  }
-
-  /* If we get this far, it means that the xfer optimization is at
-  ** least a possibility, though it might only work if the destination
-  ** table (tab1) is initially empty.
-  */
-#ifdef SQLITE_TEST
-  tdsqlite3_xferopt_count++;
-#endif
-  iDbSrc = tdsqlite3SchemaToIndex(db, pSrc->pSchema);
-  v = tdsqlite3GetVdbe(pParse);
-  tdsqlite3CodeVerifySchema(pParse, iDbSrc);
-  iSrc = pParse->nTab++;
-  iDest = pParse->nTab++;
-  regAutoinc = autoIncBegin(pParse, iDbDest, pDest);
-  regData = tdsqlite3GetTempReg(pParse);
-  regRowid = tdsqlite3GetTempReg(pParse);
-  tdsqlite3OpenTable(pParse, iDest, iDbDest, pDest, OP_OpenWrite);
-  assert( HasRowid(pDest) || destHasUniqueIdx );
-  if( (db->mDbFlags & DBFLAG_Vacuum)==0 && (
-      (pDest->iPKey<0 && pDest->pIndex!=0)          /* (1) */
-   || destHasUniqueIdx                              /* (2) */
-   || (onError!=OE_Abort && onError!=OE_Rollback)   /* (3) */
-  )){
-    /* In some circumstances, we are able to run the xfer optimization
-    ** only if the destination table is initially empty. Unless the
-    ** DBFLAG_Vacuum flag is set, this block generates code to make
-    ** that determination. If DBFLAG_Vacuum is set, then the destination
-    ** table is always empty.
-    **
-    ** Conditions under which the destination must be empty:
-    **
-    ** (1) There is no INTEGER PRIMARY KEY but there are indices.
-    **     (If the destination is not initially empty, the rowid fields
-    **     of index entries might need to change.)
-    **
-    ** (2) The destination has a unique index.  (The xfer optimization 
-    **     is unable to test uniqueness.)
-    **
-    ** (3) onError is something other than OE_Abort and OE_Rollback.
-    */
-    addr1 = tdsqlite3VdbeAddOp2(v, OP_Rewind, iDest, 0); VdbeCoverage(v);
-    emptyDestTest = tdsqlite3VdbeAddOp0(v, OP_Goto);
-    tdsqlite3VdbeJumpHere(v, addr1);
-  }
-  if( HasRowid(pSrc) ){
-    u8 insFlags;
-    tdsqlite3OpenTable(pParse, iSrc, iDbSrc, pSrc, OP_OpenRead);
-    emptySrcTest = tdsqlite3VdbeAddOp2(v, OP_Rewind, iSrc, 0); VdbeCoverage(v);
-    if( pDest->iPKey>=0 ){
-      addr1 = tdsqlite3VdbeAddOp2(v, OP_Rowid, iSrc, regRowid);
-      tdsqlite3VdbeVerifyAbortable(v, onError);
-      addr2 = tdsqlite3VdbeAddOp3(v, OP_NotExists, iDest, 0, regRowid);
-      VdbeCoverage(v);
-      tdsqlite3RowidConstraint(pParse, onError, pDest);
-      tdsqlite3VdbeJumpHere(v, addr2);
-      autoIncStep(pParse, regAutoinc, regRowid);
-    }else if( pDest->pIndex==0 && !(db->mDbFlags & DBFLAG_VacuumInto) ){
-      addr1 = tdsqlite3VdbeAddOp2(v, OP_NewRowid, iDest, regRowid);
-    }else{
-      addr1 = tdsqlite3VdbeAddOp2(v, OP_Rowid, iSrc, regRowid);
-      assert( (pDest->tabFlags & TF_Autoincrement)==0 );
-    }
-    tdsqlite3VdbeAddOp3(v, OP_RowData, iSrc, regData, 1);
-    if( db->mDbFlags & DBFLAG_Vacuum ){
-      tdsqlite3VdbeAddOp1(v, OP_SeekEnd, iDest);
-      insFlags = OPFLAG_NCHANGE|OPFLAG_LASTROWID|
-                           OPFLAG_APPEND|OPFLAG_USESEEKRESULT;
-    }else{
-      insFlags = OPFLAG_NCHANGE|OPFLAG_LASTROWID|OPFLAG_APPEND;
-    }
-    tdsqlite3VdbeAddOp4(v, OP_Insert, iDest, regData, regRowid,
-                      (char*)pDest, P4_TABLE);
-    tdsqlite3VdbeChangeP5(v, insFlags);
-    tdsqlite3VdbeAddOp2(v, OP_Next, iSrc, addr1); VdbeCoverage(v);
-    tdsqlite3VdbeAddOp2(v, OP_Close, iSrc, 0);
-    tdsqlite3VdbeAddOp2(v, OP_Close, iDest, 0);
-  }else{
-    tdsqlite3TableLock(pParse, iDbDest, pDest->tnum, 1, pDest->zName);
-    tdsqlite3TableLock(pParse, iDbSrc, pSrc->tnum, 0, pSrc->zName);
-  }
-  for(pDestIdx=pDest->pIndex; pDestIdx; pDestIdx=pDestIdx->pNext){
-    u8 idxInsFlags = 0;
-    for(pSrcIdx=pSrc->pIndex; ALWAYS(pSrcIdx); pSrcIdx=pSrcIdx->pNext){
-      if( xferCompatibleIndex(pDestIdx, pSrcIdx) ) break;
-    }
-    assert( pSrcIdx );
-    tdsqlite3VdbeAddOp3(v, OP_OpenRead, iSrc, pSrcIdx->tnum, iDbSrc);
-    tdsqlite3VdbeSetP4KeyInfo(pParse, pSrcIdx);
-    VdbeComment((v, "%s", pSrcIdx->zName));
-    tdsqlite3VdbeAddOp3(v, OP_OpenWrite, iDest, pDestIdx->tnum, iDbDest);
-    tdsqlite3VdbeSetP4KeyInfo(pParse, pDestIdx);
-    tdsqlite3VdbeChangeP5(v, OPFLAG_BULKCSR);
-    VdbeComment((v, "%s", pDestIdx->zName));
-    addr1 = tdsqlite3VdbeAddOp2(v, OP_Rewind, iSrc, 0); VdbeCoverage(v);
-    tdsqlite3VdbeAddOp3(v, OP_RowData, iSrc, regData, 1);
-    if( db->mDbFlags & DBFLAG_Vacuum ){
-      /* This INSERT command is part of a VACUUM operation, which guarantees
-      ** that the destination table is empty. If all indexed columns use
-      ** collation sequence BINARY, then it can also be assumed that the
-      ** index will be populated by inserting keys in strictly sorted 
-      ** order. In this case, instead of seeking within the b-tree as part
-      ** of every OP_IdxInsert opcode, an OP_SeekEnd is added before the
-      ** OP_IdxInsert to seek to the point within the b-tree where each key 
-      ** should be inserted. This is faster.
-      **
-      ** If any of the indexed columns use a collation sequence other than
-      ** BINARY, this optimization is disabled. This is because the user 
-      ** might change the definition of a collation sequence and then run
-      ** a VACUUM command. In that case keys may not be written in strictly
-      ** sorted order.  */
-      for(i=0; i<pSrcIdx->nColumn; i++){
-        const char *zColl = pSrcIdx->azColl[i];
-        if( tdsqlite3_stricmp(tdsqlite3StrBINARY, zColl) ) break;
-      }
-      if( i==pSrcIdx->nColumn ){
-        idxInsFlags = OPFLAG_USESEEKRESULT;
-        tdsqlite3VdbeAddOp1(v, OP_SeekEnd, iDest);
-      }
-    }
-    if( !HasRowid(pSrc) && pDestIdx->idxType==SQLITE_IDXTYPE_PRIMARYKEY ){
-      idxInsFlags |= OPFLAG_NCHANGE;
-    }
-    tdsqlite3VdbeAddOp2(v, OP_IdxInsert, iDest, regData);
-    tdsqlite3VdbeChangeP5(v, idxInsFlags|OPFLAG_APPEND);
-    tdsqlite3VdbeAddOp2(v, OP_Next, iSrc, addr1+1); VdbeCoverage(v);
-    tdsqlite3VdbeJumpHere(v, addr1);
-    tdsqlite3VdbeAddOp2(v, OP_Close, iSrc, 0);
-    tdsqlite3VdbeAddOp2(v, OP_Close, iDest, 0);
-  }
-  if( emptySrcTest ) tdsqlite3VdbeJumpHere(v, emptySrcTest);
-  tdsqlite3ReleaseTempReg(pParse, regRowid);
-  tdsqlite3ReleaseTempReg(pParse, regData);
-  if( emptyDestTest ){
-    tdsqlite3AutoincrementEnd(pParse);
-    tdsqlite3VdbeAddOp2(v, OP_Halt, SQLITE_OK, 0);
-    tdsqlite3VdbeJumpHere(v, emptyDestTest);
-    tdsqlite3VdbeAddOp2(v, OP_Close, iDest, 0);
-    return 0;
-  }else{
-    return 1;
-  }
-}
-#endif /* SQLITE_OMIT_XFER_OPT */
-
-/************** End of insert.c **********************************************/
-/************** Begin file legacy.c ******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Main file for the SQLite library.  The routines in this file
-** implement the programmer interface to the library.  Routines in
-** other files are for internal use by SQLite and should not be
-** accessed by users of the library.
-*/
-
-/* #include "sqliteInt.h" */
-
-/*
-** Execute SQL code.  Return one of the SQLITE_ success/failure
-** codes.  Also write an error message into memory obtained from
-** malloc() and make *pzErrMsg point to that message.
-**
-** If the SQL is a query, then for each row in the query result
-** the xCallback() function is called.  pArg becomes the first
-** argument to xCallback().  If xCallback=NULL then no callback
-** is invoked, even for queries.
-*/
-SQLITE_API int tdsqlite3_exec(
-  tdsqlite3 *db,                /* The database on which the SQL executes */
-  const char *zSql,           /* The SQL to be executed */
-  tdsqlite3_callback xCallback, /* Invoke this callback routine */
-  void *pArg,                 /* First argument to xCallback() */
-  char **pzErrMsg             /* Write error messages here */
-){
-  int rc = SQLITE_OK;         /* Return code */
-  const char *zLeftover;      /* Tail of unprocessed SQL */
-  tdsqlite3_stmt *pStmt = 0;    /* The current SQL statement */
-  char **azCols = 0;          /* Names of result columns */
-  int callbackIsInit;         /* True if callback data is initialized */
-
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-  if( zSql==0 ) zSql = "";
-
-  tdsqlite3_mutex_enter(db->mutex);
-  tdsqlite3Error(db, SQLITE_OK);
-  while( rc==SQLITE_OK && zSql[0] ){
-    int nCol = 0;
-    char **azVals = 0;
-
-    pStmt = 0;
-    rc = tdsqlite3_prepare_v2(db, zSql, -1, &pStmt, &zLeftover);
-    assert( rc==SQLITE_OK || pStmt==0 );
-    if( rc!=SQLITE_OK ){
-      continue;
-    }
-    if( !pStmt ){
-      /* this happens for a comment or white-space */
-      zSql = zLeftover;
-      continue;
-    }
-    callbackIsInit = 0;
-
-    while( 1 ){
-      int i;
-      rc = tdsqlite3_step(pStmt);
-
-      /* Invoke the callback function if required */
-      if( xCallback && (SQLITE_ROW==rc || 
-          (SQLITE_DONE==rc && !callbackIsInit
-                           && db->flags&SQLITE_NullCallback)) ){
-        if( !callbackIsInit ){
-          nCol = tdsqlite3_column_count(pStmt);
-          azCols = tdsqlite3DbMallocRaw(db, (2*nCol+1)*sizeof(const char*));
-          if( azCols==0 ){
-            goto exec_out;
-          }
-          for(i=0; i<nCol; i++){
-            azCols[i] = (char *)tdsqlite3_column_name(pStmt, i);
-            /* tdsqlite3VdbeSetColName() installs column names as UTF8
-            ** strings so there is no way for tdsqlite3_column_name() to fail. */
-            assert( azCols[i]!=0 );
-          }
-          callbackIsInit = 1;
-        }
-        if( rc==SQLITE_ROW ){
-          azVals = &azCols[nCol];
-          for(i=0; i<nCol; i++){
-            azVals[i] = (char *)tdsqlite3_column_text(pStmt, i);
-            if( !azVals[i] && tdsqlite3_column_type(pStmt, i)!=SQLITE_NULL ){
-              tdsqlite3OomFault(db);
-              goto exec_out;
-            }
-          }
-          azVals[i] = 0;
-        }
-        if( xCallback(pArg, nCol, azVals, azCols) ){
-          /* EVIDENCE-OF: R-38229-40159 If the callback function to
-          ** tdsqlite3_exec() returns non-zero, then tdsqlite3_exec() will
-          ** return SQLITE_ABORT. */
-          rc = SQLITE_ABORT;
-          tdsqlite3VdbeFinalize((Vdbe *)pStmt);
-          pStmt = 0;
-          tdsqlite3Error(db, SQLITE_ABORT);
-          goto exec_out;
-        }
-      }
-
-      if( rc!=SQLITE_ROW ){
-        rc = tdsqlite3VdbeFinalize((Vdbe *)pStmt);
-        pStmt = 0;
-        zSql = zLeftover;
-        while( tdsqlite3Isspace(zSql[0]) ) zSql++;
-        break;
-      }
-    }
-
-    tdsqlite3DbFree(db, azCols);
-    azCols = 0;
-  }
-
-exec_out:
-  if( pStmt ) tdsqlite3VdbeFinalize((Vdbe *)pStmt);
-  tdsqlite3DbFree(db, azCols);
-
-  rc = tdsqlite3ApiExit(db, rc);
-  if( rc!=SQLITE_OK && pzErrMsg ){
-    *pzErrMsg = tdsqlite3DbStrDup(0, tdsqlite3_errmsg(db));
-    if( *pzErrMsg==0 ){
-      rc = SQLITE_NOMEM_BKPT;
-      tdsqlite3Error(db, SQLITE_NOMEM);
-    }
-  }else if( pzErrMsg ){
-    *pzErrMsg = 0;
-  }
-
-  assert( (rc&db->errMask)==rc );
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/************** End of legacy.c **********************************************/
-/************** Begin file loadext.c *****************************************/
-/*
-** 2006 June 7
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code used to dynamically load extensions into
-** the SQLite library.
-*/
-
-#ifndef SQLITE_CORE
-  #define SQLITE_CORE 1  /* Disable the API redefinition in tdsqlite3ext.h */
-#endif
-/************** Include tdsqlite3ext.h in the middle of loadext.c **************/
-/************** Begin file tdsqlite3ext.h **************************************/
-/*
-** 2006 June 7
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the SQLite interface for use by
-** shared libraries that want to be imported as extensions into
-** an SQLite instance.  Shared libraries that intend to be loaded
-** as extensions by SQLite should #include this file instead of 
-** sqlite3.h.
-*/
-#ifndef SQLITE3EXT_H
-#define SQLITE3EXT_H
-/* #include "sqlite3.h" */
-
-/*
-** The following structure holds pointers to all of the SQLite API
-** routines.
-**
-** WARNING:  In order to maintain backwards compatibility, add new
-** interfaces to the end of this structure only.  If you insert new
-** interfaces in the middle of this structure, then older different
-** versions of SQLite will not be able to load each other's shared
-** libraries!
-*/
-struct tdsqlite3_api_routines {
-  void * (*aggregate_context)(tdsqlite3_context*,int nBytes);
-  int  (*aggregate_count)(tdsqlite3_context*);
-  int  (*bind_blob)(tdsqlite3_stmt*,int,const void*,int n,void(*)(void*));
-  int  (*bind_double)(tdsqlite3_stmt*,int,double);
-  int  (*bind_int)(tdsqlite3_stmt*,int,int);
-  int  (*bind_int64)(tdsqlite3_stmt*,int,sqlite_int64);
-  int  (*bind_null)(tdsqlite3_stmt*,int);
-  int  (*bind_parameter_count)(tdsqlite3_stmt*);
-  int  (*bind_parameter_index)(tdsqlite3_stmt*,const char*zName);
-  const char * (*bind_parameter_name)(tdsqlite3_stmt*,int);
-  int  (*bind_text)(tdsqlite3_stmt*,int,const char*,int n,void(*)(void*));
-  int  (*bind_text16)(tdsqlite3_stmt*,int,const void*,int,void(*)(void*));
-  int  (*bind_value)(tdsqlite3_stmt*,int,const tdsqlite3_value*);
-  int  (*busy_handler)(tdsqlite3*,int(*)(void*,int),void*);
-  int  (*busy_timeout)(tdsqlite3*,int ms);
-  int  (*changes)(tdsqlite3*);
-  int  (*close)(tdsqlite3*);
-  int  (*collation_needed)(tdsqlite3*,void*,void(*)(void*,tdsqlite3*,
-                           int eTextRep,const char*));
-  int  (*collation_needed16)(tdsqlite3*,void*,void(*)(void*,tdsqlite3*,
-                             int eTextRep,const void*));
-  const void * (*column_blob)(tdsqlite3_stmt*,int iCol);
-  int  (*column_bytes)(tdsqlite3_stmt*,int iCol);
-  int  (*column_bytes16)(tdsqlite3_stmt*,int iCol);
-  int  (*column_count)(tdsqlite3_stmt*pStmt);
-  const char * (*column_database_name)(tdsqlite3_stmt*,int);
-  const void * (*column_database_name16)(tdsqlite3_stmt*,int);
-  const char * (*column_decltype)(tdsqlite3_stmt*,int i);
-  const void * (*column_decltype16)(tdsqlite3_stmt*,int);
-  double  (*column_double)(tdsqlite3_stmt*,int iCol);
-  int  (*column_int)(tdsqlite3_stmt*,int iCol);
-  sqlite_int64  (*column_int64)(tdsqlite3_stmt*,int iCol);
-  const char * (*column_name)(tdsqlite3_stmt*,int);
-  const void * (*column_name16)(tdsqlite3_stmt*,int);
-  const char * (*column_origin_name)(tdsqlite3_stmt*,int);
-  const void * (*column_origin_name16)(tdsqlite3_stmt*,int);
-  const char * (*column_table_name)(tdsqlite3_stmt*,int);
-  const void * (*column_table_name16)(tdsqlite3_stmt*,int);
-  const unsigned char * (*column_text)(tdsqlite3_stmt*,int iCol);
-  const void * (*column_text16)(tdsqlite3_stmt*,int iCol);
-  int  (*column_type)(tdsqlite3_stmt*,int iCol);
-  tdsqlite3_value* (*column_value)(tdsqlite3_stmt*,int iCol);
-  void * (*commit_hook)(tdsqlite3*,int(*)(void*),void*);
-  int  (*complete)(const char*sql);
-  int  (*complete16)(const void*sql);
-  int  (*create_collation)(tdsqlite3*,const char*,int,void*,
-                           int(*)(void*,int,const void*,int,const void*));
-  int  (*create_collation16)(tdsqlite3*,const void*,int,void*,
-                             int(*)(void*,int,const void*,int,const void*));
-  int  (*create_function)(tdsqlite3*,const char*,int,int,void*,
-                          void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-                          void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-                          void (*xFinal)(tdsqlite3_context*));
-  int  (*create_function16)(tdsqlite3*,const void*,int,int,void*,
-                            void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xFinal)(tdsqlite3_context*));
-  int (*create_module)(tdsqlite3*,const char*,const tdsqlite3_module*,void*);
-  int  (*data_count)(tdsqlite3_stmt*pStmt);
-  tdsqlite3 * (*db_handle)(tdsqlite3_stmt*);
-  int (*declare_vtab)(tdsqlite3*,const char*);
-  int  (*enable_shared_cache)(int);
-  int  (*errcode)(tdsqlite3*db);
-  const char * (*errmsg)(tdsqlite3*);
-  const void * (*errmsg16)(tdsqlite3*);
-  int  (*exec)(tdsqlite3*,const char*,tdsqlite3_callback,void*,char**);
-  int  (*expired)(tdsqlite3_stmt*);
-  int  (*finalize)(tdsqlite3_stmt*pStmt);
-  void  (*free)(void*);
-  void  (*free_table)(char**result);
-  int  (*get_autocommit)(tdsqlite3*);
-  void * (*get_auxdata)(tdsqlite3_context*,int);
-  int  (*get_table)(tdsqlite3*,const char*,char***,int*,int*,char**);
-  int  (*global_recover)(void);
-  void  (*interruptx)(tdsqlite3*);
-  sqlite_int64  (*last_insert_rowid)(tdsqlite3*);
-  const char * (*libversion)(void);
-  int  (*libversion_number)(void);
-  void *(*malloc)(int);
-  char * (*mprintf)(const char*,...);
-  int  (*open)(const char*,tdsqlite3**);
-  int  (*open16)(const void*,tdsqlite3**);
-  int  (*prepare)(tdsqlite3*,const char*,int,tdsqlite3_stmt**,const char**);
-  int  (*prepare16)(tdsqlite3*,const void*,int,tdsqlite3_stmt**,const void**);
-  void * (*profile)(tdsqlite3*,void(*)(void*,const char*,sqlite_uint64),void*);
-  void  (*progress_handler)(tdsqlite3*,int,int(*)(void*),void*);
-  void *(*realloc)(void*,int);
-  int  (*reset)(tdsqlite3_stmt*pStmt);
-  void  (*result_blob)(tdsqlite3_context*,const void*,int,void(*)(void*));
-  void  (*result_double)(tdsqlite3_context*,double);
-  void  (*result_error)(tdsqlite3_context*,const char*,int);
-  void  (*result_error16)(tdsqlite3_context*,const void*,int);
-  void  (*result_int)(tdsqlite3_context*,int);
-  void  (*result_int64)(tdsqlite3_context*,sqlite_int64);
-  void  (*result_null)(tdsqlite3_context*);
-  void  (*result_text)(tdsqlite3_context*,const char*,int,void(*)(void*));
-  void  (*result_text16)(tdsqlite3_context*,const void*,int,void(*)(void*));
-  void  (*result_text16be)(tdsqlite3_context*,const void*,int,void(*)(void*));
-  void  (*result_text16le)(tdsqlite3_context*,const void*,int,void(*)(void*));
-  void  (*result_value)(tdsqlite3_context*,tdsqlite3_value*);
-  void * (*rollback_hook)(tdsqlite3*,void(*)(void*),void*);
-  int  (*set_authorizer)(tdsqlite3*,int(*)(void*,int,const char*,const char*,
-                         const char*,const char*),void*);
-  void  (*set_auxdata)(tdsqlite3_context*,int,void*,void (*)(void*));
-  char * (*xsnprintf)(int,char*,const char*,...);
-  int  (*step)(tdsqlite3_stmt*);
-  int  (*table_column_metadata)(tdsqlite3*,const char*,const char*,const char*,
-                                char const**,char const**,int*,int*,int*);
-  void  (*thread_cleanup)(void);
-  int  (*total_changes)(tdsqlite3*);
-  void * (*trace)(tdsqlite3*,void(*xTrace)(void*,const char*),void*);
-  int  (*transfer_bindings)(tdsqlite3_stmt*,tdsqlite3_stmt*);
-  void * (*update_hook)(tdsqlite3*,void(*)(void*,int ,char const*,char const*,
-                                         sqlite_int64),void*);
-  void * (*user_data)(tdsqlite3_context*);
-  const void * (*value_blob)(tdsqlite3_value*);
-  int  (*value_bytes)(tdsqlite3_value*);
-  int  (*value_bytes16)(tdsqlite3_value*);
-  double  (*value_double)(tdsqlite3_value*);
-  int  (*value_int)(tdsqlite3_value*);
-  sqlite_int64  (*value_int64)(tdsqlite3_value*);
-  int  (*value_numeric_type)(tdsqlite3_value*);
-  const unsigned char * (*value_text)(tdsqlite3_value*);
-  const void * (*value_text16)(tdsqlite3_value*);
-  const void * (*value_text16be)(tdsqlite3_value*);
-  const void * (*value_text16le)(tdsqlite3_value*);
-  int  (*value_type)(tdsqlite3_value*);
-  char *(*vmprintf)(const char*,va_list);
-  /* Added ??? */
-  int (*overload_function)(tdsqlite3*, const char *zFuncName, int nArg);
-  /* Added by 3.3.13 */
-  int (*prepare_v2)(tdsqlite3*,const char*,int,tdsqlite3_stmt**,const char**);
-  int (*prepare16_v2)(tdsqlite3*,const void*,int,tdsqlite3_stmt**,const void**);
-  int (*clear_bindings)(tdsqlite3_stmt*);
-  /* Added by 3.4.1 */
-  int (*create_module_v2)(tdsqlite3*,const char*,const tdsqlite3_module*,void*,
-                          void (*xDestroy)(void *));
-  /* Added by 3.5.0 */
-  int (*bind_zeroblob)(tdsqlite3_stmt*,int,int);
-  int (*blob_bytes)(tdsqlite3_blob*);
-  int (*blob_close)(tdsqlite3_blob*);
-  int (*blob_open)(tdsqlite3*,const char*,const char*,const char*,tdsqlite3_int64,
-                   int,tdsqlite3_blob**);
-  int (*blob_read)(tdsqlite3_blob*,void*,int,int);
-  int (*blob_write)(tdsqlite3_blob*,const void*,int,int);
-  int (*create_collation_v2)(tdsqlite3*,const char*,int,void*,
-                             int(*)(void*,int,const void*,int,const void*),
-                             void(*)(void*));
-  int (*file_control)(tdsqlite3*,const char*,int,void*);
-  tdsqlite3_int64 (*memory_highwater)(int);
-  tdsqlite3_int64 (*memory_used)(void);
-  tdsqlite3_mutex *(*mutex_alloc)(int);
-  void (*mutex_enter)(tdsqlite3_mutex*);
-  void (*mutex_free)(tdsqlite3_mutex*);
-  void (*mutex_leave)(tdsqlite3_mutex*);
-  int (*mutex_try)(tdsqlite3_mutex*);
-  int (*open_v2)(const char*,tdsqlite3**,int,const char*);
-  int (*release_memory)(int);
-  void (*result_error_nomem)(tdsqlite3_context*);
-  void (*result_error_toobig)(tdsqlite3_context*);
-  int (*sleep)(int);
-  void (*soft_heap_limit)(int);
-  tdsqlite3_vfs *(*vfs_find)(const char*);
-  int (*vfs_register)(tdsqlite3_vfs*,int);
-  int (*vfs_unregister)(tdsqlite3_vfs*);
-  int (*xthreadsafe)(void);
-  void (*result_zeroblob)(tdsqlite3_context*,int);
-  void (*result_error_code)(tdsqlite3_context*,int);
-  int (*test_control)(int, ...);
-  void (*randomness)(int,void*);
-  tdsqlite3 *(*context_db_handle)(tdsqlite3_context*);
-  int (*extended_result_codes)(tdsqlite3*,int);
-  int (*limit)(tdsqlite3*,int,int);
-  tdsqlite3_stmt *(*next_stmt)(tdsqlite3*,tdsqlite3_stmt*);
-  const char *(*sql)(tdsqlite3_stmt*);
-  int (*status)(int,int*,int*,int);
-  int (*backup_finish)(tdsqlite3_backup*);
-  tdsqlite3_backup *(*backup_init)(tdsqlite3*,const char*,tdsqlite3*,const char*);
-  int (*backup_pagecount)(tdsqlite3_backup*);
-  int (*backup_remaining)(tdsqlite3_backup*);
-  int (*backup_step)(tdsqlite3_backup*,int);
-  const char *(*compileoption_get)(int);
-  int (*compileoption_used)(const char*);
-  int (*create_function_v2)(tdsqlite3*,const char*,int,int,void*,
-                            void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xFinal)(tdsqlite3_context*),
-                            void(*xDestroy)(void*));
-  int (*db_config)(tdsqlite3*,int,...);
-  tdsqlite3_mutex *(*db_mutex)(tdsqlite3*);
-  int (*db_status)(tdsqlite3*,int,int*,int*,int);
-  int (*extended_errcode)(tdsqlite3*);
-  void (*log)(int,const char*,...);
-  tdsqlite3_int64 (*soft_heap_limit64)(tdsqlite3_int64);
-  const char *(*sourceid)(void);
-  int (*stmt_status)(tdsqlite3_stmt*,int,int);
-  int (*strnicmp)(const char*,const char*,int);
-  int (*unlock_notify)(tdsqlite3*,void(*)(void**,int),void*);
-  int (*wal_autocheckpoint)(tdsqlite3*,int);
-  int (*wal_checkpoint)(tdsqlite3*,const char*);
-  void *(*wal_hook)(tdsqlite3*,int(*)(void*,tdsqlite3*,const char*,int),void*);
-  int (*blob_reopen)(tdsqlite3_blob*,tdsqlite3_int64);
-  int (*vtab_config)(tdsqlite3*,int op,...);
-  int (*vtab_on_conflict)(tdsqlite3*);
-  /* Version 3.7.16 and later */
-  int (*close_v2)(tdsqlite3*);
-  const char *(*db_filename)(tdsqlite3*,const char*);
-  int (*db_readonly)(tdsqlite3*,const char*);
-  int (*db_release_memory)(tdsqlite3*);
-  const char *(*errstr)(int);
-  int (*stmt_busy)(tdsqlite3_stmt*);
-  int (*stmt_readonly)(tdsqlite3_stmt*);
-  int (*stricmp)(const char*,const char*);
-  int (*uri_boolean)(const char*,const char*,int);
-  tdsqlite3_int64 (*uri_int64)(const char*,const char*,tdsqlite3_int64);
-  const char *(*uri_parameter)(const char*,const char*);
-  char *(*xvsnprintf)(int,char*,const char*,va_list);
-  int (*wal_checkpoint_v2)(tdsqlite3*,const char*,int,int*,int*);
-  /* Version 3.8.7 and later */
-  int (*auto_extension)(void(*)(void));
-  int (*bind_blob64)(tdsqlite3_stmt*,int,const void*,tdsqlite3_uint64,
-                     void(*)(void*));
-  int (*bind_text64)(tdsqlite3_stmt*,int,const char*,tdsqlite3_uint64,
-                      void(*)(void*),unsigned char);
-  int (*cancel_auto_extension)(void(*)(void));
-  int (*load_extension)(tdsqlite3*,const char*,const char*,char**);
-  void *(*malloc64)(tdsqlite3_uint64);
-  tdsqlite3_uint64 (*msize)(void*);
-  void *(*realloc64)(void*,tdsqlite3_uint64);
-  void (*reset_auto_extension)(void);
-  void (*result_blob64)(tdsqlite3_context*,const void*,tdsqlite3_uint64,
-                        void(*)(void*));
-  void (*result_text64)(tdsqlite3_context*,const char*,tdsqlite3_uint64,
-                         void(*)(void*), unsigned char);
-  int (*strglob)(const char*,const char*);
-  /* Version 3.8.11 and later */
-  tdsqlite3_value *(*value_dup)(const tdsqlite3_value*);
-  void (*value_free)(tdsqlite3_value*);
-  int (*result_zeroblob64)(tdsqlite3_context*,tdsqlite3_uint64);
-  int (*bind_zeroblob64)(tdsqlite3_stmt*, int, tdsqlite3_uint64);
-  /* Version 3.9.0 and later */
-  unsigned int (*value_subtype)(tdsqlite3_value*);
-  void (*result_subtype)(tdsqlite3_context*,unsigned int);
-  /* Version 3.10.0 and later */
-  int (*status64)(int,tdsqlite3_int64*,tdsqlite3_int64*,int);
-  int (*strlike)(const char*,const char*,unsigned int);
-  int (*db_cacheflush)(tdsqlite3*);
-  /* Version 3.12.0 and later */
-  int (*system_errno)(tdsqlite3*);
-  /* Version 3.14.0 and later */
-  int (*trace_v2)(tdsqlite3*,unsigned,int(*)(unsigned,void*,void*,void*),void*);
-  char *(*expanded_sql)(tdsqlite3_stmt*);
-  /* Version 3.18.0 and later */
-  void (*set_last_insert_rowid)(tdsqlite3*,tdsqlite3_int64);
-  /* Version 3.20.0 and later */
-  int (*prepare_v3)(tdsqlite3*,const char*,int,unsigned int,
-                    tdsqlite3_stmt**,const char**);
-  int (*prepare16_v3)(tdsqlite3*,const void*,int,unsigned int,
-                      tdsqlite3_stmt**,const void**);
-  int (*bind_pointer)(tdsqlite3_stmt*,int,void*,const char*,void(*)(void*));
-  void (*result_pointer)(tdsqlite3_context*,void*,const char*,void(*)(void*));
-  void *(*value_pointer)(tdsqlite3_value*,const char*);
-  int (*vtab_nochange)(tdsqlite3_context*);
-  int (*value_nochange)(tdsqlite3_value*);
-  const char *(*vtab_collation)(tdsqlite3_index_info*,int);
-  /* Version 3.24.0 and later */
-  int (*keyword_count)(void);
-  int (*keyword_name)(int,const char**,int*);
-  int (*keyword_check)(const char*,int);
-  tdsqlite3_str *(*str_new)(tdsqlite3*);
-  char *(*str_finish)(tdsqlite3_str*);
-  void (*str_appendf)(tdsqlite3_str*, const char *zFormat, ...);
-  void (*str_vappendf)(tdsqlite3_str*, const char *zFormat, va_list);
-  void (*str_append)(tdsqlite3_str*, const char *zIn, int N);
-  void (*str_appendall)(tdsqlite3_str*, const char *zIn);
-  void (*str_appendchar)(tdsqlite3_str*, int N, char C);
-  void (*str_reset)(tdsqlite3_str*);
-  int (*str_errcode)(tdsqlite3_str*);
-  int (*str_length)(tdsqlite3_str*);
-  char *(*str_value)(tdsqlite3_str*);
-  /* Version 3.25.0 and later */
-  int (*create_window_function)(tdsqlite3*,const char*,int,int,void*,
-                            void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xFinal)(tdsqlite3_context*),
-                            void (*xValue)(tdsqlite3_context*),
-                            void (*xInv)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void(*xDestroy)(void*));
-  /* Version 3.26.0 and later */
-  const char *(*normalized_sql)(tdsqlite3_stmt*);
-  /* Version 3.28.0 and later */
-  int (*stmt_isexplain)(tdsqlite3_stmt*);
-  int (*value_frombind)(tdsqlite3_value*);
-  /* Version 3.30.0 and later */
-  int (*drop_modules)(tdsqlite3*,const char**);
-  /* Version 3.31.0 and later */
-  tdsqlite3_int64 (*hard_heap_limit64)(tdsqlite3_int64);
-  const char *(*uri_key)(const char*,int);
-  const char *(*filename_database)(const char*);
-  const char *(*filename_journal)(const char*);
-  const char *(*filename_wal)(const char*);
-};
-
-/*
-** This is the function signature used for all extension entry points.  It
-** is also defined in the file "loadext.c".
-*/
-typedef int (*tdsqlite3_loadext_entry)(
-  tdsqlite3 *db,                       /* Handle to the database. */
-  char **pzErrMsg,                   /* Used to set error string on failure. */
-  const tdsqlite3_api_routines *pThunk /* Extension API function pointers. */
-);
-
-/*
-** The following macros redefine the API routines so that they are
-** redirected through the global tdsqlite3_api structure.
-**
-** This header file is also used by the loadext.c source file
-** (part of the main SQLite library - not an extension) so that
-** it can get access to the tdsqlite3_api_routines structure
-** definition.  But the main library does not want to redefine
-** the API.  So the redefinition macros are only valid if the
-** SQLITE_CORE macros is undefined.
-*/
-#if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
-#define tdsqlite3_aggregate_context      tdsqlite3_api->aggregate_context
-#ifndef SQLITE_OMIT_DEPRECATED
-#define tdsqlite3_aggregate_count        tdsqlite3_api->aggregate_count
-#endif
-#define tdsqlite3_bind_blob              tdsqlite3_api->bind_blob
-#define tdsqlite3_bind_double            tdsqlite3_api->bind_double
-#define tdsqlite3_bind_int               tdsqlite3_api->bind_int
-#define tdsqlite3_bind_int64             tdsqlite3_api->bind_int64
-#define tdsqlite3_bind_null              tdsqlite3_api->bind_null
-#define tdsqlite3_bind_parameter_count   tdsqlite3_api->bind_parameter_count
-#define tdsqlite3_bind_parameter_index   tdsqlite3_api->bind_parameter_index
-#define tdsqlite3_bind_parameter_name    tdsqlite3_api->bind_parameter_name
-#define tdsqlite3_bind_text              tdsqlite3_api->bind_text
-#define tdsqlite3_bind_text16            tdsqlite3_api->bind_text16
-#define tdsqlite3_bind_value             tdsqlite3_api->bind_value
-#define tdsqlite3_busy_handler           tdsqlite3_api->busy_handler
-#define tdsqlite3_busy_timeout           tdsqlite3_api->busy_timeout
-#define tdsqlite3_changes                tdsqlite3_api->changes
-#define tdsqlite3_close                  tdsqlite3_api->close
-#define tdsqlite3_collation_needed       tdsqlite3_api->collation_needed
-#define tdsqlite3_collation_needed16     tdsqlite3_api->collation_needed16
-#define tdsqlite3_column_blob            tdsqlite3_api->column_blob
-#define tdsqlite3_column_bytes           tdsqlite3_api->column_bytes
-#define tdsqlite3_column_bytes16         tdsqlite3_api->column_bytes16
-#define tdsqlite3_column_count           tdsqlite3_api->column_count
-#define tdsqlite3_column_database_name   tdsqlite3_api->column_database_name
-#define tdsqlite3_column_database_name16 tdsqlite3_api->column_database_name16
-#define tdsqlite3_column_decltype        tdsqlite3_api->column_decltype
-#define tdsqlite3_column_decltype16      tdsqlite3_api->column_decltype16
-#define tdsqlite3_column_double          tdsqlite3_api->column_double
-#define tdsqlite3_column_int             tdsqlite3_api->column_int
-#define tdsqlite3_column_int64           tdsqlite3_api->column_int64
-#define tdsqlite3_column_name            tdsqlite3_api->column_name
-#define tdsqlite3_column_name16          tdsqlite3_api->column_name16
-#define tdsqlite3_column_origin_name     tdsqlite3_api->column_origin_name
-#define tdsqlite3_column_origin_name16   tdsqlite3_api->column_origin_name16
-#define tdsqlite3_column_table_name      tdsqlite3_api->column_table_name
-#define tdsqlite3_column_table_name16    tdsqlite3_api->column_table_name16
-#define tdsqlite3_column_text            tdsqlite3_api->column_text
-#define tdsqlite3_column_text16          tdsqlite3_api->column_text16
-#define tdsqlite3_column_type            tdsqlite3_api->column_type
-#define tdsqlite3_column_value           tdsqlite3_api->column_value
-#define tdsqlite3_commit_hook            tdsqlite3_api->commit_hook
-#define tdsqlite3_complete               tdsqlite3_api->complete
-#define tdsqlite3_complete16             tdsqlite3_api->complete16
-#define tdsqlite3_create_collation       tdsqlite3_api->create_collation
-#define tdsqlite3_create_collation16     tdsqlite3_api->create_collation16
-#define tdsqlite3_create_function        tdsqlite3_api->create_function
-#define tdsqlite3_create_function16      tdsqlite3_api->create_function16
-#define tdsqlite3_create_module          tdsqlite3_api->create_module
-#define tdsqlite3_create_module_v2       tdsqlite3_api->create_module_v2
-#define tdsqlite3_data_count             tdsqlite3_api->data_count
-#define tdsqlite3_db_handle              tdsqlite3_api->db_handle
-#define tdsqlite3_declare_vtab           tdsqlite3_api->declare_vtab
-#define tdsqlite3_enable_shared_cache    tdsqlite3_api->enable_shared_cache
-#define tdsqlite3_errcode                tdsqlite3_api->errcode
-#define tdsqlite3_errmsg                 tdsqlite3_api->errmsg
-#define tdsqlite3_errmsg16               tdsqlite3_api->errmsg16
-#define tdsqlite3_exec                   tdsqlite3_api->exec
-#ifndef SQLITE_OMIT_DEPRECATED
-#define tdsqlite3_expired                tdsqlite3_api->expired
-#endif
-#define tdsqlite3_finalize               tdsqlite3_api->finalize
-#define tdsqlite3_free                   tdsqlite3_api->free
-#define tdsqlite3_free_table             tdsqlite3_api->free_table
-#define tdsqlite3_get_autocommit         tdsqlite3_api->get_autocommit
-#define tdsqlite3_get_auxdata            tdsqlite3_api->get_auxdata
-#define tdsqlite3_get_table              tdsqlite3_api->get_table
-#ifndef SQLITE_OMIT_DEPRECATED
-#define tdsqlite3_global_recover         tdsqlite3_api->global_recover
-#endif
-#define tdsqlite3_interrupt              tdsqlite3_api->interruptx
-#define tdsqlite3_last_insert_rowid      tdsqlite3_api->last_insert_rowid
-#define tdsqlite3_libversion             tdsqlite3_api->libversion
-#define tdsqlite3_libversion_number      tdsqlite3_api->libversion_number
-#define tdsqlite3_malloc                 tdsqlite3_api->malloc
-#define tdsqlite3_mprintf                tdsqlite3_api->mprintf
-#define tdsqlite3_open                   tdsqlite3_api->open
-#define tdsqlite3_open16                 tdsqlite3_api->open16
-#define tdsqlite3_prepare                tdsqlite3_api->prepare
-#define tdsqlite3_prepare16              tdsqlite3_api->prepare16
-#define tdsqlite3_prepare_v2             tdsqlite3_api->prepare_v2
-#define tdsqlite3_prepare16_v2           tdsqlite3_api->prepare16_v2
-#define tdsqlite3_profile                tdsqlite3_api->profile
-#define tdsqlite3_progress_handler       tdsqlite3_api->progress_handler
-#define tdsqlite3_realloc                tdsqlite3_api->realloc
-#define tdsqlite3_reset                  tdsqlite3_api->reset
-#define tdsqlite3_result_blob            tdsqlite3_api->result_blob
-#define tdsqlite3_result_double          tdsqlite3_api->result_double
-#define tdsqlite3_result_error           tdsqlite3_api->result_error
-#define tdsqlite3_result_error16         tdsqlite3_api->result_error16
-#define tdsqlite3_result_int             tdsqlite3_api->result_int
-#define tdsqlite3_result_int64           tdsqlite3_api->result_int64
-#define tdsqlite3_result_null            tdsqlite3_api->result_null
-#define tdsqlite3_result_text            tdsqlite3_api->result_text
-#define tdsqlite3_result_text16          tdsqlite3_api->result_text16
-#define tdsqlite3_result_text16be        tdsqlite3_api->result_text16be
-#define tdsqlite3_result_text16le        tdsqlite3_api->result_text16le
-#define tdsqlite3_result_value           tdsqlite3_api->result_value
-#define tdsqlite3_rollback_hook          tdsqlite3_api->rollback_hook
-#define tdsqlite3_set_authorizer         tdsqlite3_api->set_authorizer
-#define tdsqlite3_set_auxdata            tdsqlite3_api->set_auxdata
-#define tdsqlite3_snprintf               tdsqlite3_api->xsnprintf
-#define tdsqlite3_step                   tdsqlite3_api->step
-#define tdsqlite3_table_column_metadata  tdsqlite3_api->table_column_metadata
-#define tdsqlite3_thread_cleanup         tdsqlite3_api->thread_cleanup
-#define tdsqlite3_total_changes          tdsqlite3_api->total_changes
-#define tdsqlite3_trace                  tdsqlite3_api->trace
-#ifndef SQLITE_OMIT_DEPRECATED
-#define tdsqlite3_transfer_bindings      tdsqlite3_api->transfer_bindings
-#endif
-#define tdsqlite3_update_hook            tdsqlite3_api->update_hook
-#define tdsqlite3_user_data              tdsqlite3_api->user_data
-#define tdsqlite3_value_blob             tdsqlite3_api->value_blob
-#define tdsqlite3_value_bytes            tdsqlite3_api->value_bytes
-#define tdsqlite3_value_bytes16          tdsqlite3_api->value_bytes16
-#define tdsqlite3_value_double           tdsqlite3_api->value_double
-#define tdsqlite3_value_int              tdsqlite3_api->value_int
-#define tdsqlite3_value_int64            tdsqlite3_api->value_int64
-#define tdsqlite3_value_numeric_type     tdsqlite3_api->value_numeric_type
-#define tdsqlite3_value_text             tdsqlite3_api->value_text
-#define tdsqlite3_value_text16           tdsqlite3_api->value_text16
-#define tdsqlite3_value_text16be         tdsqlite3_api->value_text16be
-#define tdsqlite3_value_text16le         tdsqlite3_api->value_text16le
-#define tdsqlite3_value_type             tdsqlite3_api->value_type
-#define tdsqlite3_vmprintf               tdsqlite3_api->vmprintf
-#define tdsqlite3_vsnprintf              tdsqlite3_api->xvsnprintf
-#define tdsqlite3_overload_function      tdsqlite3_api->overload_function
-#define tdsqlite3_prepare_v2             tdsqlite3_api->prepare_v2
-#define tdsqlite3_prepare16_v2           tdsqlite3_api->prepare16_v2
-#define tdsqlite3_clear_bindings         tdsqlite3_api->clear_bindings
-#define tdsqlite3_bind_zeroblob          tdsqlite3_api->bind_zeroblob
-#define tdsqlite3_blob_bytes             tdsqlite3_api->blob_bytes
-#define tdsqlite3_blob_close             tdsqlite3_api->blob_close
-#define tdsqlite3_blob_open              tdsqlite3_api->blob_open
-#define tdsqlite3_blob_read              tdsqlite3_api->blob_read
-#define tdsqlite3_blob_write             tdsqlite3_api->blob_write
-#define tdsqlite3_create_collation_v2    tdsqlite3_api->create_collation_v2
-#define tdsqlite3_file_control           tdsqlite3_api->file_control
-#define tdsqlite3_memory_highwater       tdsqlite3_api->memory_highwater
-#define tdsqlite3_memory_used            tdsqlite3_api->memory_used
-#define tdsqlite3_mutex_alloc            tdsqlite3_api->mutex_alloc
-#define tdsqlite3_mutex_enter            tdsqlite3_api->mutex_enter
-#define tdsqlite3_mutex_free             tdsqlite3_api->mutex_free
-#define tdsqlite3_mutex_leave            tdsqlite3_api->mutex_leave
-#define tdsqlite3_mutex_try              tdsqlite3_api->mutex_try
-#define tdsqlite3_open_v2                tdsqlite3_api->open_v2
-#define tdsqlite3_release_memory         tdsqlite3_api->release_memory
-#define tdsqlite3_result_error_nomem     tdsqlite3_api->result_error_nomem
-#define tdsqlite3_result_error_toobig    tdsqlite3_api->result_error_toobig
-#define tdsqlite3_sleep                  tdsqlite3_api->sleep
-#define tdsqlite3_soft_heap_limit        tdsqlite3_api->soft_heap_limit
-#define tdsqlite3_vfs_find               tdsqlite3_api->vfs_find
-#define tdsqlite3_vfs_register           tdsqlite3_api->vfs_register
-#define tdsqlite3_vfs_unregister         tdsqlite3_api->vfs_unregister
-#define tdsqlite3_threadsafe             tdsqlite3_api->xthreadsafe
-#define tdsqlite3_result_zeroblob        tdsqlite3_api->result_zeroblob
-#define tdsqlite3_result_error_code      tdsqlite3_api->result_error_code
-#define tdsqlite3_test_control           tdsqlite3_api->test_control
-#define tdsqlite3_randomness             tdsqlite3_api->randomness
-#define tdsqlite3_context_db_handle      tdsqlite3_api->context_db_handle
-#define tdsqlite3_extended_result_codes  tdsqlite3_api->extended_result_codes
-#define tdsqlite3_limit                  tdsqlite3_api->limit
-#define tdsqlite3_next_stmt              tdsqlite3_api->next_stmt
-#define tdsqlite3_sql                    tdsqlite3_api->sql
-#define tdsqlite3_status                 tdsqlite3_api->status
-#define tdsqlite3_backup_finish          tdsqlite3_api->backup_finish
-#define tdsqlite3_backup_init            tdsqlite3_api->backup_init
-#define tdsqlite3_backup_pagecount       tdsqlite3_api->backup_pagecount
-#define tdsqlite3_backup_remaining       tdsqlite3_api->backup_remaining
-#define tdsqlite3_backup_step            tdsqlite3_api->backup_step
-#define tdsqlite3_compileoption_get      tdsqlite3_api->compileoption_get
-#define tdsqlite3_compileoption_used     tdsqlite3_api->compileoption_used
-#define tdsqlite3_create_function_v2     tdsqlite3_api->create_function_v2
-#define tdsqlite3_db_config              tdsqlite3_api->db_config
-#define tdsqlite3_db_mutex               tdsqlite3_api->db_mutex
-#define tdsqlite3_db_status              tdsqlite3_api->db_status
-#define tdsqlite3_extended_errcode       tdsqlite3_api->extended_errcode
-#define tdsqlite3_log                    tdsqlite3_api->log
-#define tdsqlite3_soft_heap_limit64      tdsqlite3_api->soft_heap_limit64
-#define tdsqlite3_sourceid               tdsqlite3_api->sourceid
-#define tdsqlite3_stmt_status            tdsqlite3_api->stmt_status
-#define tdsqlite3_strnicmp               tdsqlite3_api->strnicmp
-#define tdsqlite3_unlock_notify          tdsqlite3_api->unlock_notify
-#define tdsqlite3_wal_autocheckpoint     tdsqlite3_api->wal_autocheckpoint
-#define tdsqlite3_wal_checkpoint         tdsqlite3_api->wal_checkpoint
-#define tdsqlite3_wal_hook               tdsqlite3_api->wal_hook
-#define tdsqlite3_blob_reopen            tdsqlite3_api->blob_reopen
-#define tdsqlite3_vtab_config            tdsqlite3_api->vtab_config
-#define tdsqlite3_vtab_on_conflict       tdsqlite3_api->vtab_on_conflict
-/* Version 3.7.16 and later */
-#define tdsqlite3_close_v2               tdsqlite3_api->close_v2
-#define tdsqlite3_db_filename            tdsqlite3_api->db_filename
-#define tdsqlite3_db_readonly            tdsqlite3_api->db_readonly
-#define tdsqlite3_db_release_memory      tdsqlite3_api->db_release_memory
-#define tdsqlite3_errstr                 tdsqlite3_api->errstr
-#define tdsqlite3_stmt_busy              tdsqlite3_api->stmt_busy
-#define tdsqlite3_stmt_readonly          tdsqlite3_api->stmt_readonly
-#define tdsqlite3_stricmp                tdsqlite3_api->stricmp
-#define tdsqlite3_uri_boolean            tdsqlite3_api->uri_boolean
-#define tdsqlite3_uri_int64              tdsqlite3_api->uri_int64
-#define tdsqlite3_uri_parameter          tdsqlite3_api->uri_parameter
-#define tdsqlite3_uri_vsnprintf          tdsqlite3_api->xvsnprintf
-#define tdsqlite3_wal_checkpoint_v2      tdsqlite3_api->wal_checkpoint_v2
-/* Version 3.8.7 and later */
-#define tdsqlite3_auto_extension         tdsqlite3_api->auto_extension
-#define tdsqlite3_bind_blob64            tdsqlite3_api->bind_blob64
-#define tdsqlite3_bind_text64            tdsqlite3_api->bind_text64
-#define tdsqlite3_cancel_auto_extension  tdsqlite3_api->cancel_auto_extension
-#define tdsqlite3_load_extension         tdsqlite3_api->load_extension
-#define tdsqlite3_malloc64               tdsqlite3_api->malloc64
-#define tdsqlite3_msize                  tdsqlite3_api->msize
-#define tdsqlite3_realloc64              tdsqlite3_api->realloc64
-#define tdsqlite3_reset_auto_extension   tdsqlite3_api->reset_auto_extension
-#define tdsqlite3_result_blob64          tdsqlite3_api->result_blob64
-#define tdsqlite3_result_text64          tdsqlite3_api->result_text64
-#define tdsqlite3_strglob                tdsqlite3_api->strglob
-/* Version 3.8.11 and later */
-#define tdsqlite3_value_dup              tdsqlite3_api->value_dup
-#define tdsqlite3_value_free             tdsqlite3_api->value_free
-#define tdsqlite3_result_zeroblob64      tdsqlite3_api->result_zeroblob64
-#define tdsqlite3_bind_zeroblob64        tdsqlite3_api->bind_zeroblob64
-/* Version 3.9.0 and later */
-#define tdsqlite3_value_subtype          tdsqlite3_api->value_subtype
-#define tdsqlite3_result_subtype         tdsqlite3_api->result_subtype
-/* Version 3.10.0 and later */
-#define tdsqlite3_status64               tdsqlite3_api->status64
-#define tdsqlite3_strlike                tdsqlite3_api->strlike
-#define tdsqlite3_db_cacheflush          tdsqlite3_api->db_cacheflush
-/* Version 3.12.0 and later */
-#define tdsqlite3_system_errno           tdsqlite3_api->system_errno
-/* Version 3.14.0 and later */
-#define tdsqlite3_trace_v2               tdsqlite3_api->trace_v2
-#define tdsqlite3_expanded_sql           tdsqlite3_api->expanded_sql
-/* Version 3.18.0 and later */
-#define tdsqlite3_set_last_insert_rowid  tdsqlite3_api->set_last_insert_rowid
-/* Version 3.20.0 and later */
-#define tdsqlite3_prepare_v3             tdsqlite3_api->prepare_v3
-#define tdsqlite3_prepare16_v3           tdsqlite3_api->prepare16_v3
-#define tdsqlite3_bind_pointer           tdsqlite3_api->bind_pointer
-#define tdsqlite3_result_pointer         tdsqlite3_api->result_pointer
-#define tdsqlite3_value_pointer          tdsqlite3_api->value_pointer
-/* Version 3.22.0 and later */
-#define tdsqlite3_vtab_nochange          tdsqlite3_api->vtab_nochange
-#define tdsqlite3_value_nochange         tdsqlite3_api->value_nochange
-#define tdsqlite3_vtab_collation         tdsqlite3_api->vtab_collation
-/* Version 3.24.0 and later */
-#define tdsqlite3_keyword_count          tdsqlite3_api->keyword_count
-#define tdsqlite3_keyword_name           tdsqlite3_api->keyword_name
-#define tdsqlite3_keyword_check          tdsqlite3_api->keyword_check
-#define tdsqlite3_str_new                tdsqlite3_api->str_new
-#define tdsqlite3_str_finish             tdsqlite3_api->str_finish
-#define tdsqlite3_str_appendf            tdsqlite3_api->str_appendf
-#define tdsqlite3_str_vappendf           tdsqlite3_api->str_vappendf
-#define tdsqlite3_str_append             tdsqlite3_api->str_append
-#define tdsqlite3_str_appendall          tdsqlite3_api->str_appendall
-#define tdsqlite3_str_appendchar         tdsqlite3_api->str_appendchar
-#define tdsqlite3_str_reset              tdsqlite3_api->str_reset
-#define tdsqlite3_str_errcode            tdsqlite3_api->str_errcode
-#define tdsqlite3_str_length             tdsqlite3_api->str_length
-#define tdsqlite3_str_value              tdsqlite3_api->str_value
-/* Version 3.25.0 and later */
-#define tdsqlite3_create_window_function tdsqlite3_api->create_window_function
-/* Version 3.26.0 and later */
-#define tdsqlite3_normalized_sql         tdsqlite3_api->normalized_sql
-/* Version 3.28.0 and later */
-#define tdsqlite3_stmt_isexplain         tdsqlite3_api->isexplain
-#define tdsqlite3_value_frombind         tdsqlite3_api->frombind
-/* Version 3.30.0 and later */
-#define tdsqlite3_drop_modules           tdsqlite3_api->drop_modules
-/* Version 3.31.0 andn later */
-#define tdsqlite3_hard_heap_limit64      tdsqlite3_api->hard_heap_limit64
-#define tdsqlite3_uri_key                tdsqlite3_api->uri_key
-#define tdsqlite3_filename_database      tdsqlite3_api->filename_database
-#define tdsqlite3_filename_journal       tdsqlite3_api->filename_journal
-#define tdsqlite3_filename_wal           tdsqlite3_api->filename_wal
-#endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */
-
-#if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
-  /* This case when the file really is being compiled as a loadable 
-  ** extension */
-# define SQLITE_EXTENSION_INIT1     const tdsqlite3_api_routines *tdsqlite3_api=0;
-# define SQLITE_EXTENSION_INIT2(v)  tdsqlite3_api=v;
-# define SQLITE_EXTENSION_INIT3     \
-    extern const tdsqlite3_api_routines *tdsqlite3_api;
-#else
-  /* This case when the file is being statically linked into the 
-  ** application */
-# define SQLITE_EXTENSION_INIT1     /*no-op*/
-# define SQLITE_EXTENSION_INIT2(v)  (void)v; /* unused parameter */
-# define SQLITE_EXTENSION_INIT3     /*no-op*/
-#endif
-
-#endif /* SQLITE3EXT_H */
-
-/************** End of tdsqlite3ext.h ******************************************/
-/************** Continuing where we left off in loadext.c ********************/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-/*
-** Some API routines are omitted when various features are
-** excluded from a build of SQLite.  Substitute a NULL pointer
-** for any missing APIs.
-*/
-#ifndef SQLITE_ENABLE_COLUMN_METADATA
-# define tdsqlite3_column_database_name   0
-# define tdsqlite3_column_database_name16 0
-# define tdsqlite3_column_table_name      0
-# define tdsqlite3_column_table_name16    0
-# define tdsqlite3_column_origin_name     0
-# define tdsqlite3_column_origin_name16   0
-#endif
-
-#ifdef SQLITE_OMIT_AUTHORIZATION
-# define tdsqlite3_set_authorizer         0
-#endif
-
-#ifdef SQLITE_OMIT_UTF16
-# define tdsqlite3_bind_text16            0
-# define tdsqlite3_collation_needed16     0
-# define tdsqlite3_column_decltype16      0
-# define tdsqlite3_column_name16          0
-# define tdsqlite3_column_text16          0
-# define tdsqlite3_complete16             0
-# define tdsqlite3_create_collation16     0
-# define tdsqlite3_create_function16      0
-# define tdsqlite3_errmsg16               0
-# define tdsqlite3_open16                 0
-# define tdsqlite3_prepare16              0
-# define tdsqlite3_prepare16_v2           0
-# define tdsqlite3_prepare16_v3           0
-# define tdsqlite3_result_error16         0
-# define tdsqlite3_result_text16          0
-# define tdsqlite3_result_text16be        0
-# define tdsqlite3_result_text16le        0
-# define tdsqlite3_value_text16           0
-# define tdsqlite3_value_text16be         0
-# define tdsqlite3_value_text16le         0
-# define tdsqlite3_column_database_name16 0
-# define tdsqlite3_column_table_name16    0
-# define tdsqlite3_column_origin_name16   0
-#endif
-
-#ifdef SQLITE_OMIT_COMPLETE
-# define tdsqlite3_complete 0
-# define tdsqlite3_complete16 0
-#endif
-
-#ifdef SQLITE_OMIT_DECLTYPE
-# define tdsqlite3_column_decltype16      0
-# define tdsqlite3_column_decltype        0
-#endif
-
-#ifdef SQLITE_OMIT_PROGRESS_CALLBACK
-# define tdsqlite3_progress_handler 0
-#endif
-
-#ifdef SQLITE_OMIT_VIRTUALTABLE
-# define tdsqlite3_create_module 0
-# define tdsqlite3_create_module_v2 0
-# define tdsqlite3_declare_vtab 0
-# define tdsqlite3_vtab_config 0
-# define tdsqlite3_vtab_on_conflict 0
-# define tdsqlite3_vtab_collation 0
-#endif
-
-#ifdef SQLITE_OMIT_SHARED_CACHE
-# define tdsqlite3_enable_shared_cache 0
-#endif
-
-#if defined(SQLITE_OMIT_TRACE) || defined(SQLITE_OMIT_DEPRECATED)
-# define tdsqlite3_profile       0
-# define tdsqlite3_trace         0
-#endif
-
-#ifdef SQLITE_OMIT_GET_TABLE
-# define tdsqlite3_free_table    0
-# define tdsqlite3_get_table     0
-#endif
-
-#ifdef SQLITE_OMIT_INCRBLOB
-#define tdsqlite3_bind_zeroblob  0
-#define tdsqlite3_blob_bytes     0
-#define tdsqlite3_blob_close     0
-#define tdsqlite3_blob_open      0
-#define tdsqlite3_blob_read      0
-#define tdsqlite3_blob_write     0
-#define tdsqlite3_blob_reopen    0
-#endif
-
-#if defined(SQLITE_OMIT_TRACE)
-# define tdsqlite3_trace_v2      0
-#endif
-
-/*
-** The following structure contains pointers to all SQLite API routines.
-** A pointer to this structure is passed into extensions when they are
-** loaded so that the extension can make calls back into the SQLite
-** library.
-**
-** When adding new APIs, add them to the bottom of this structure
-** in order to preserve backwards compatibility.
-**
-** Extensions that use newer APIs should first call the
-** tdsqlite3_libversion_number() to make sure that the API they
-** intend to use is supported by the library.  Extensions should
-** also check to make sure that the pointer to the function is
-** not NULL before calling it.
-*/
-static const tdsqlite3_api_routines tdsqlite3Apis = {
-  tdsqlite3_aggregate_context,
-#ifndef SQLITE_OMIT_DEPRECATED
-  tdsqlite3_aggregate_count,
-#else
-  0,
-#endif
-  tdsqlite3_bind_blob,
-  tdsqlite3_bind_double,
-  tdsqlite3_bind_int,
-  tdsqlite3_bind_int64,
-  tdsqlite3_bind_null,
-  tdsqlite3_bind_parameter_count,
-  tdsqlite3_bind_parameter_index,
-  tdsqlite3_bind_parameter_name,
-  tdsqlite3_bind_text,
-  tdsqlite3_bind_text16,
-  tdsqlite3_bind_value,
-  tdsqlite3_busy_handler,
-  tdsqlite3_busy_timeout,
-  tdsqlite3_changes,
-  tdsqlite3_close,
-  tdsqlite3_collation_needed,
-  tdsqlite3_collation_needed16,
-  tdsqlite3_column_blob,
-  tdsqlite3_column_bytes,
-  tdsqlite3_column_bytes16,
-  tdsqlite3_column_count,
-  tdsqlite3_column_database_name,
-  tdsqlite3_column_database_name16,
-  tdsqlite3_column_decltype,
-  tdsqlite3_column_decltype16,
-  tdsqlite3_column_double,
-  tdsqlite3_column_int,
-  tdsqlite3_column_int64,
-  tdsqlite3_column_name,
-  tdsqlite3_column_name16,
-  tdsqlite3_column_origin_name,
-  tdsqlite3_column_origin_name16,
-  tdsqlite3_column_table_name,
-  tdsqlite3_column_table_name16,
-  tdsqlite3_column_text,
-  tdsqlite3_column_text16,
-  tdsqlite3_column_type,
-  tdsqlite3_column_value,
-  tdsqlite3_commit_hook,
-  tdsqlite3_complete,
-  tdsqlite3_complete16,
-  tdsqlite3_create_collation,
-  tdsqlite3_create_collation16,
-  tdsqlite3_create_function,
-  tdsqlite3_create_function16,
-  tdsqlite3_create_module,
-  tdsqlite3_data_count,
-  tdsqlite3_db_handle,
-  tdsqlite3_declare_vtab,
-  tdsqlite3_enable_shared_cache,
-  tdsqlite3_errcode,
-  tdsqlite3_errmsg,
-  tdsqlite3_errmsg16,
-  tdsqlite3_exec,
-#ifndef SQLITE_OMIT_DEPRECATED
-  tdsqlite3_expired,
-#else
-  0,
-#endif
-  tdsqlite3_finalize,
-  tdsqlite3_free,
-  tdsqlite3_free_table,
-  tdsqlite3_get_autocommit,
-  tdsqlite3_get_auxdata,
-  tdsqlite3_get_table,
-  0,     /* Was tdsqlite3_global_recover(), but that function is deprecated */
-  tdsqlite3_interrupt,
-  tdsqlite3_last_insert_rowid,
-  tdsqlite3_libversion,
-  tdsqlite3_libversion_number,
-  tdsqlite3_malloc,
-  tdsqlite3_mprintf,
-  tdsqlite3_open,
-  tdsqlite3_open16,
-  tdsqlite3_prepare,
-  tdsqlite3_prepare16,
-  tdsqlite3_profile,
-  tdsqlite3_progress_handler,
-  tdsqlite3_realloc,
-  tdsqlite3_reset,
-  tdsqlite3_result_blob,
-  tdsqlite3_result_double,
-  tdsqlite3_result_error,
-  tdsqlite3_result_error16,
-  tdsqlite3_result_int,
-  tdsqlite3_result_int64,
-  tdsqlite3_result_null,
-  tdsqlite3_result_text,
-  tdsqlite3_result_text16,
-  tdsqlite3_result_text16be,
-  tdsqlite3_result_text16le,
-  tdsqlite3_result_value,
-  tdsqlite3_rollback_hook,
-  tdsqlite3_set_authorizer,
-  tdsqlite3_set_auxdata,
-  tdsqlite3_snprintf,
-  tdsqlite3_step,
-  tdsqlite3_table_column_metadata,
-#ifndef SQLITE_OMIT_DEPRECATED
-  tdsqlite3_thread_cleanup,
-#else
-  0,
-#endif
-  tdsqlite3_total_changes,
-  tdsqlite3_trace,
-#ifndef SQLITE_OMIT_DEPRECATED
-  tdsqlite3_transfer_bindings,
-#else
-  0,
-#endif
-  tdsqlite3_update_hook,
-  tdsqlite3_user_data,
-  tdsqlite3_value_blob,
-  tdsqlite3_value_bytes,
-  tdsqlite3_value_bytes16,
-  tdsqlite3_value_double,
-  tdsqlite3_value_int,
-  tdsqlite3_value_int64,
-  tdsqlite3_value_numeric_type,
-  tdsqlite3_value_text,
-  tdsqlite3_value_text16,
-  tdsqlite3_value_text16be,
-  tdsqlite3_value_text16le,
-  tdsqlite3_value_type,
-  tdsqlite3_vmprintf,
-  /*
-  ** The original API set ends here.  All extensions can call any
-  ** of the APIs above provided that the pointer is not NULL.  But
-  ** before calling APIs that follow, extension should check the
-  ** tdsqlite3_libversion_number() to make sure they are dealing with
-  ** a library that is new enough to support that API.
-  *************************************************************************
-  */
-  tdsqlite3_overload_function,
-
-  /*
-  ** Added after 3.3.13
-  */
-  tdsqlite3_prepare_v2,
-  tdsqlite3_prepare16_v2,
-  tdsqlite3_clear_bindings,
-
-  /*
-  ** Added for 3.4.1
-  */
-  tdsqlite3_create_module_v2,
-
-  /*
-  ** Added for 3.5.0
-  */
-  tdsqlite3_bind_zeroblob,
-  tdsqlite3_blob_bytes,
-  tdsqlite3_blob_close,
-  tdsqlite3_blob_open,
-  tdsqlite3_blob_read,
-  tdsqlite3_blob_write,
-  tdsqlite3_create_collation_v2,
-  tdsqlite3_file_control,
-  tdsqlite3_memory_highwater,
-  tdsqlite3_memory_used,
-#ifdef SQLITE_MUTEX_OMIT
-  0, 
-  0, 
-  0,
-  0,
-  0,
-#else
-  tdsqlite3_mutex_alloc,
-  tdsqlite3_mutex_enter,
-  tdsqlite3_mutex_free,
-  tdsqlite3_mutex_leave,
-  tdsqlite3_mutex_try,
-#endif
-  tdsqlite3_open_v2,
-  tdsqlite3_release_memory,
-  tdsqlite3_result_error_nomem,
-  tdsqlite3_result_error_toobig,
-  tdsqlite3_sleep,
-  tdsqlite3_soft_heap_limit,
-  tdsqlite3_vfs_find,
-  tdsqlite3_vfs_register,
-  tdsqlite3_vfs_unregister,
-
-  /*
-  ** Added for 3.5.8
-  */
-  tdsqlite3_threadsafe,
-  tdsqlite3_result_zeroblob,
-  tdsqlite3_result_error_code,
-  tdsqlite3_test_control,
-  tdsqlite3_randomness,
-  tdsqlite3_context_db_handle,
-
-  /*
-  ** Added for 3.6.0
-  */
-  tdsqlite3_extended_result_codes,
-  tdsqlite3_limit,
-  tdsqlite3_next_stmt,
-  tdsqlite3_sql,
-  tdsqlite3_status,
-
-  /*
-  ** Added for 3.7.4
-  */
-  tdsqlite3_backup_finish,
-  tdsqlite3_backup_init,
-  tdsqlite3_backup_pagecount,
-  tdsqlite3_backup_remaining,
-  tdsqlite3_backup_step,
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-  tdsqlite3_compileoption_get,
-  tdsqlite3_compileoption_used,
-#else
-  0,
-  0,
-#endif
-  tdsqlite3_create_function_v2,
-  tdsqlite3_db_config,
-  tdsqlite3_db_mutex,
-  tdsqlite3_db_status,
-  tdsqlite3_extended_errcode,
-  tdsqlite3_log,
-  tdsqlite3_soft_heap_limit64,
-  tdsqlite3_sourceid,
-  tdsqlite3_stmt_status,
-  tdsqlite3_strnicmp,
-#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
-  tdsqlite3_unlock_notify,
-#else
-  0,
-#endif
-#ifndef SQLITE_OMIT_WAL
-  tdsqlite3_wal_autocheckpoint,
-  tdsqlite3_wal_checkpoint,
-  tdsqlite3_wal_hook,
-#else
-  0,
-  0,
-  0,
-#endif
-  tdsqlite3_blob_reopen,
-  tdsqlite3_vtab_config,
-  tdsqlite3_vtab_on_conflict,
-  tdsqlite3_close_v2,
-  tdsqlite3_db_filename,
-  tdsqlite3_db_readonly,
-  tdsqlite3_db_release_memory,
-  tdsqlite3_errstr,
-  tdsqlite3_stmt_busy,
-  tdsqlite3_stmt_readonly,
-  tdsqlite3_stricmp,
-  tdsqlite3_uri_boolean,
-  tdsqlite3_uri_int64,
-  tdsqlite3_uri_parameter,
-  tdsqlite3_vsnprintf,
-  tdsqlite3_wal_checkpoint_v2,
-  /* Version 3.8.7 and later */
-  tdsqlite3_auto_extension,
-  tdsqlite3_bind_blob64,
-  tdsqlite3_bind_text64,
-  tdsqlite3_cancel_auto_extension,
-  tdsqlite3_load_extension,
-  tdsqlite3_malloc64,
-  tdsqlite3_msize,
-  tdsqlite3_realloc64,
-  tdsqlite3_reset_auto_extension,
-  tdsqlite3_result_blob64,
-  tdsqlite3_result_text64,
-  tdsqlite3_strglob,
-  /* Version 3.8.11 and later */
-  (tdsqlite3_value*(*)(const tdsqlite3_value*))tdsqlite3_value_dup,
-  tdsqlite3_value_free,
-  tdsqlite3_result_zeroblob64,
-  tdsqlite3_bind_zeroblob64,
-  /* Version 3.9.0 and later */
-  tdsqlite3_value_subtype,
-  tdsqlite3_result_subtype,
-  /* Version 3.10.0 and later */
-  tdsqlite3_status64,
-  tdsqlite3_strlike,
-  tdsqlite3_db_cacheflush,
-  /* Version 3.12.0 and later */
-  tdsqlite3_system_errno,
-  /* Version 3.14.0 and later */
-  tdsqlite3_trace_v2,
-  tdsqlite3_expanded_sql,
-  /* Version 3.18.0 and later */
-  tdsqlite3_set_last_insert_rowid,
-  /* Version 3.20.0 and later */
-  tdsqlite3_prepare_v3,
-  tdsqlite3_prepare16_v3,
-  tdsqlite3_bind_pointer,
-  tdsqlite3_result_pointer,
-  tdsqlite3_value_pointer,
-  /* Version 3.22.0 and later */
-  tdsqlite3_vtab_nochange,
-  tdsqlite3_value_nochange,
-  tdsqlite3_vtab_collation,
-  /* Version 3.24.0 and later */
-  tdsqlite3_keyword_count,
-  tdsqlite3_keyword_name,
-  tdsqlite3_keyword_check,
-  tdsqlite3_str_new,
-  tdsqlite3_str_finish,
-  tdsqlite3_str_appendf,
-  tdsqlite3_str_vappendf,
-  tdsqlite3_str_append,
-  tdsqlite3_str_appendall,
-  tdsqlite3_str_appendchar,
-  tdsqlite3_str_reset,
-  tdsqlite3_str_errcode,
-  tdsqlite3_str_length,
-  tdsqlite3_str_value,
-  /* Version 3.25.0 and later */
-  tdsqlite3_create_window_function,
-  /* Version 3.26.0 and later */
-#ifdef SQLITE_ENABLE_NORMALIZE
-  tdsqlite3_normalized_sql,
-#else
-  0,
-#endif
-  /* Version 3.28.0 and later */
-  tdsqlite3_stmt_isexplain,
-  tdsqlite3_value_frombind,
-  /* Version 3.30.0 and later */
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  tdsqlite3_drop_modules,
-#else
-  0,
-#endif
-  /* Version 3.31.0 and later */
-  tdsqlite3_hard_heap_limit64,
-  tdsqlite3_uri_key,
-  tdsqlite3_filename_database,
-  tdsqlite3_filename_journal,
-  tdsqlite3_filename_wal,
-};
-
-/*
-** Attempt to load an SQLite extension library contained in the file
-** zFile.  The entry point is zProc.  zProc may be 0 in which case a
-** default entry point name (tdsqlite3_extension_init) is used.  Use
-** of the default name is recommended.
-**
-** Return SQLITE_OK on success and SQLITE_ERROR if something goes wrong.
-**
-** If an error occurs and pzErrMsg is not 0, then fill *pzErrMsg with 
-** error message text.  The calling function should free this memory
-** by calling tdsqlite3DbFree(db, ).
-*/
-static int tdsqlite3LoadExtension(
-  tdsqlite3 *db,          /* Load the extension into this database connection */
-  const char *zFile,    /* Name of the shared library containing extension */
-  const char *zProc,    /* Entry point.  Use "tdsqlite3_extension_init" if 0 */
-  char **pzErrMsg       /* Put error message here if not 0 */
-){
-  tdsqlite3_vfs *pVfs = db->pVfs;
-  void *handle;
-  tdsqlite3_loadext_entry xInit;
-  char *zErrmsg = 0;
-  const char *zEntry;
-  char *zAltEntry = 0;
-  void **aHandle;
-  u64 nMsg = 300 + tdsqlite3Strlen30(zFile);
-  int ii;
-  int rc;
-
-  /* Shared library endings to try if zFile cannot be loaded as written */
-  static const char *azEndings[] = {
-#if SQLITE_OS_WIN
-     "dll"   
-#elif defined(__APPLE__)
-     "dylib"
-#else
-     "so"
-#endif
-  };
-
-
-  if( pzErrMsg ) *pzErrMsg = 0;
-
-  /* Ticket #1863.  To avoid a creating security problems for older
-  ** applications that relink against newer versions of SQLite, the
-  ** ability to run load_extension is turned off by default.  One
-  ** must call either tdsqlite3_enable_load_extension(db) or
-  ** tdsqlite3_db_config(db, SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, 1, 0)
-  ** to turn on extension loading.
-  */
-  if( (db->flags & SQLITE_LoadExtension)==0 ){
-    if( pzErrMsg ){
-      *pzErrMsg = tdsqlite3_mprintf("not authorized");
-    }
-    return SQLITE_ERROR;
-  }
-
-  zEntry = zProc ? zProc : "tdsqlite3_extension_init";
-
-  handle = tdsqlite3OsDlOpen(pVfs, zFile);
-#if SQLITE_OS_UNIX || SQLITE_OS_WIN
-  for(ii=0; ii<ArraySize(azEndings) && handle==0; ii++){
-    char *zAltFile = tdsqlite3_mprintf("%s.%s", zFile, azEndings[ii]);
-    if( zAltFile==0 ) return SQLITE_NOMEM_BKPT;
-    handle = tdsqlite3OsDlOpen(pVfs, zAltFile);
-    tdsqlite3_free(zAltFile);
-  }
-#endif
-  if( handle==0 ){
-    if( pzErrMsg ){
-      *pzErrMsg = zErrmsg = tdsqlite3_malloc64(nMsg);
-      if( zErrmsg ){
-        tdsqlite3_snprintf(nMsg, zErrmsg, 
-            "unable to open shared library [%s]", zFile);
-        tdsqlite3OsDlError(pVfs, nMsg-1, zErrmsg);
-      }
-    }
-    return SQLITE_ERROR;
-  }
-  xInit = (tdsqlite3_loadext_entry)tdsqlite3OsDlSym(pVfs, handle, zEntry);
-
-  /* If no entry point was specified and the default legacy
-  ** entry point name "tdsqlite3_extension_init" was not found, then
-  ** construct an entry point name "tdsqlite3_X_init" where the X is
-  ** replaced by the lowercase value of every ASCII alphabetic 
-  ** character in the filename after the last "/" upto the first ".",
-  ** and eliding the first three characters if they are "lib".  
-  ** Examples:
-  **
-  **    /usr/local/lib/libExample5.4.3.so ==>  tdsqlite3_example_init
-  **    C:/lib/mathfuncs.dll              ==>  tdsqlite3_mathfuncs_init
-  */
-  if( xInit==0 && zProc==0 ){
-    int iFile, iEntry, c;
-    int ncFile = tdsqlite3Strlen30(zFile);
-    zAltEntry = tdsqlite3_malloc64(ncFile+30);
-    if( zAltEntry==0 ){
-      tdsqlite3OsDlClose(pVfs, handle);
-      return SQLITE_NOMEM_BKPT;
-    }
-    memcpy(zAltEntry, "tdsqlite3_", 8);
-    for(iFile=ncFile-1; iFile>=0 && zFile[iFile]!='/'; iFile--){}
-    iFile++;
-    if( tdsqlite3_strnicmp(zFile+iFile, "lib", 3)==0 ) iFile += 3;
-    for(iEntry=8; (c = zFile[iFile])!=0 && c!='.'; iFile++){
-      if( tdsqlite3Isalpha(c) ){
-        zAltEntry[iEntry++] = (char)tdsqlite3UpperToLower[(unsigned)c];
-      }
-    }
-    memcpy(zAltEntry+iEntry, "_init", 6);
-    zEntry = zAltEntry;
-    xInit = (tdsqlite3_loadext_entry)tdsqlite3OsDlSym(pVfs, handle, zEntry);
-  }
-  if( xInit==0 ){
-    if( pzErrMsg ){
-      nMsg += tdsqlite3Strlen30(zEntry);
-      *pzErrMsg = zErrmsg = tdsqlite3_malloc64(nMsg);
-      if( zErrmsg ){
-        tdsqlite3_snprintf(nMsg, zErrmsg,
-            "no entry point [%s] in shared library [%s]", zEntry, zFile);
-        tdsqlite3OsDlError(pVfs, nMsg-1, zErrmsg);
-      }
-    }
-    tdsqlite3OsDlClose(pVfs, handle);
-    tdsqlite3_free(zAltEntry);
-    return SQLITE_ERROR;
-  }
-  tdsqlite3_free(zAltEntry);
-  rc = xInit(db, &zErrmsg, &tdsqlite3Apis);
-  if( rc ){
-    if( rc==SQLITE_OK_LOAD_PERMANENTLY ) return SQLITE_OK;
-    if( pzErrMsg ){
-      *pzErrMsg = tdsqlite3_mprintf("error during initialization: %s", zErrmsg);
-    }
-    tdsqlite3_free(zErrmsg);
-    tdsqlite3OsDlClose(pVfs, handle);
-    return SQLITE_ERROR;
-  }
-
-  /* Append the new shared library handle to the db->aExtension array. */
-  aHandle = tdsqlite3DbMallocZero(db, sizeof(handle)*(db->nExtension+1));
-  if( aHandle==0 ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  if( db->nExtension>0 ){
-    memcpy(aHandle, db->aExtension, sizeof(handle)*db->nExtension);
-  }
-  tdsqlite3DbFree(db, db->aExtension);
-  db->aExtension = aHandle;
-
-  db->aExtension[db->nExtension++] = handle;
-  return SQLITE_OK;
-}
-SQLITE_API int tdsqlite3_load_extension(
-  tdsqlite3 *db,          /* Load the extension into this database connection */
-  const char *zFile,    /* Name of the shared library containing extension */
-  const char *zProc,    /* Entry point.  Use "tdsqlite3_extension_init" if 0 */
-  char **pzErrMsg       /* Put error message here if not 0 */
-){
-  int rc;
-  tdsqlite3_mutex_enter(db->mutex);
-  rc = tdsqlite3LoadExtension(db, zFile, zProc, pzErrMsg);
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** Call this routine when the database connection is closing in order
-** to clean up loaded extensions
-*/
-SQLITE_PRIVATE void tdsqlite3CloseExtensions(tdsqlite3 *db){
-  int i;
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  for(i=0; i<db->nExtension; i++){
-    tdsqlite3OsDlClose(db->pVfs, db->aExtension[i]);
-  }
-  tdsqlite3DbFree(db, db->aExtension);
-}
-
-/*
-** Enable or disable extension loading.  Extension loading is disabled by
-** default so as not to open security holes in older applications.
-*/
-SQLITE_API int tdsqlite3_enable_load_extension(tdsqlite3 *db, int onoff){
-  tdsqlite3_mutex_enter(db->mutex);
-  if( onoff ){
-    db->flags |= SQLITE_LoadExtension|SQLITE_LoadExtFunc;
-  }else{
-    db->flags &= ~(u64)(SQLITE_LoadExtension|SQLITE_LoadExtFunc);
-  }
-  tdsqlite3_mutex_leave(db->mutex);
-  return SQLITE_OK;
-}
-
-#endif /* !defined(SQLITE_OMIT_LOAD_EXTENSION) */
-
-/*
-** The following object holds the list of automatically loaded
-** extensions.
-**
-** This list is shared across threads.  The SQLITE_MUTEX_STATIC_MASTER
-** mutex must be held while accessing this list.
-*/
-typedef struct tdsqlite3AutoExtList tdsqlite3AutoExtList;
-static SQLITE_WSD struct tdsqlite3AutoExtList {
-  u32 nExt;              /* Number of entries in aExt[] */          
-  void (**aExt)(void);   /* Pointers to the extension init functions */
-} tdsqlite3Autoext = { 0, 0 };
-
-/* The "wsdAutoext" macro will resolve to the autoextension
-** state vector.  If writable static data is unsupported on the target,
-** we have to locate the state vector at run-time.  In the more common
-** case where writable static data is supported, wsdStat can refer directly
-** to the "tdsqlite3Autoext" state vector declared above.
-*/
-#ifdef SQLITE_OMIT_WSD
-# define wsdAutoextInit \
-  tdsqlite3AutoExtList *x = &GLOBAL(tdsqlite3AutoExtList,tdsqlite3Autoext)
-# define wsdAutoext x[0]
-#else
-# define wsdAutoextInit
-# define wsdAutoext tdsqlite3Autoext
-#endif
-
-
-/*
-** Register a statically linked extension that is automatically
-** loaded by every new database connection.
-*/
-SQLITE_API int tdsqlite3_auto_extension(
-  void (*xInit)(void)
-){
-  int rc = SQLITE_OK;
-#ifndef SQLITE_OMIT_AUTOINIT
-  rc = tdsqlite3_initialize();
-  if( rc ){
-    return rc;
-  }else
-#endif
-  {
-    u32 i;
-#if SQLITE_THREADSAFE
-    tdsqlite3_mutex *mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
-#endif
-    wsdAutoextInit;
-    tdsqlite3_mutex_enter(mutex);
-    for(i=0; i<wsdAutoext.nExt; i++){
-      if( wsdAutoext.aExt[i]==xInit ) break;
-    }
-    if( i==wsdAutoext.nExt ){
-      u64 nByte = (wsdAutoext.nExt+1)*sizeof(wsdAutoext.aExt[0]);
-      void (**aNew)(void);
-      aNew = tdsqlite3_realloc64(wsdAutoext.aExt, nByte);
-      if( aNew==0 ){
-        rc = SQLITE_NOMEM_BKPT;
-      }else{
-        wsdAutoext.aExt = aNew;
-        wsdAutoext.aExt[wsdAutoext.nExt] = xInit;
-        wsdAutoext.nExt++;
-      }
-    }
-    tdsqlite3_mutex_leave(mutex);
-    assert( (rc&0xff)==rc );
-    return rc;
-  }
-}
-
-/*
-** Cancel a prior call to tdsqlite3_auto_extension.  Remove xInit from the
-** set of routines that is invoked for each new database connection, if it
-** is currently on the list.  If xInit is not on the list, then this
-** routine is a no-op.
-**
-** Return 1 if xInit was found on the list and removed.  Return 0 if xInit
-** was not on the list.
-*/
-SQLITE_API int tdsqlite3_cancel_auto_extension(
-  void (*xInit)(void)
-){
-#if SQLITE_THREADSAFE
-  tdsqlite3_mutex *mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
-#endif
-  int i;
-  int n = 0;
-  wsdAutoextInit;
-  tdsqlite3_mutex_enter(mutex);
-  for(i=(int)wsdAutoext.nExt-1; i>=0; i--){
-    if( wsdAutoext.aExt[i]==xInit ){
-      wsdAutoext.nExt--;
-      wsdAutoext.aExt[i] = wsdAutoext.aExt[wsdAutoext.nExt];
-      n++;
-      break;
-    }
-  }
-  tdsqlite3_mutex_leave(mutex);
-  return n;
-}
-
-/*
-** Reset the automatic extension loading mechanism.
-*/
-SQLITE_API void tdsqlite3_reset_auto_extension(void){
-#ifndef SQLITE_OMIT_AUTOINIT
-  if( tdsqlite3_initialize()==SQLITE_OK )
-#endif
-  {
-#if SQLITE_THREADSAFE
-    tdsqlite3_mutex *mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
-#endif
-    wsdAutoextInit;
-    tdsqlite3_mutex_enter(mutex);
-    tdsqlite3_free(wsdAutoext.aExt);
-    wsdAutoext.aExt = 0;
-    wsdAutoext.nExt = 0;
-    tdsqlite3_mutex_leave(mutex);
-  }
-}
-
-/*
-** Load all automatic extensions.
-**
-** If anything goes wrong, set an error in the database connection.
-*/
-SQLITE_PRIVATE void tdsqlite3AutoLoadExtensions(tdsqlite3 *db){
-  u32 i;
-  int go = 1;
-  int rc;
-  tdsqlite3_loadext_entry xInit;
-
-  wsdAutoextInit;
-  if( wsdAutoext.nExt==0 ){
-    /* Common case: early out without every having to acquire a mutex */
-    return;
-  }
-  for(i=0; go; i++){
-    char *zErrmsg;
-#if SQLITE_THREADSAFE
-    tdsqlite3_mutex *mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER);
-#endif
-#ifdef SQLITE_OMIT_LOAD_EXTENSION
-    const tdsqlite3_api_routines *pThunk = 0;
-#else
-    const tdsqlite3_api_routines *pThunk = &tdsqlite3Apis;
-#endif
-    tdsqlite3_mutex_enter(mutex);
-    if( i>=wsdAutoext.nExt ){
-      xInit = 0;
-      go = 0;
-    }else{
-      xInit = (tdsqlite3_loadext_entry)wsdAutoext.aExt[i];
-    }
-    tdsqlite3_mutex_leave(mutex);
-    zErrmsg = 0;
-    if( xInit && (rc = xInit(db, &zErrmsg, pThunk))!=0 ){
-      tdsqlite3ErrorWithMsg(db, rc,
-            "automatic extension loading failed: %s", zErrmsg);
-      go = 0;
-    }
-    tdsqlite3_free(zErrmsg);
-  }
-}
-
-/************** End of loadext.c *********************************************/
-/************** Begin file pragma.c ******************************************/
-/*
-** 2003 April 6
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code used to implement the PRAGMA command.
-*/
-/* #include "sqliteInt.h" */
-
-#if !defined(SQLITE_ENABLE_LOCKING_STYLE)
-#  if defined(__APPLE__)
-#    define SQLITE_ENABLE_LOCKING_STYLE 1
-#  else
-#    define SQLITE_ENABLE_LOCKING_STYLE 0
-#  endif
-#endif
-
-/***************************************************************************
-** The "pragma.h" include file is an automatically generated file that
-** that includes the PragType_XXXX macro definitions and the aPragmaName[]
-** object.  This ensures that the aPragmaName[] table is arranged in
-** lexicographical order to facility a binary search of the pragma name.
-** Do not edit pragma.h directly.  Edit and rerun the script in at 
-** ../tool/mkpragmatab.tcl. */
-/************** Include pragma.h in the middle of pragma.c *******************/
-/************** Begin file pragma.h ******************************************/
-/* DO NOT EDIT!
-** This file is automatically generated by the script at
-** ../tool/mkpragmatab.tcl.  To update the set of pragmas, edit
-** that script and rerun it.
-*/
-
-/* The various pragma types */
-#define PragTyp_HEADER_VALUE                   0
-#define PragTyp_AUTO_VACUUM                    1
-#define PragTyp_FLAG                           2
-#define PragTyp_BUSY_TIMEOUT                   3
-#define PragTyp_CACHE_SIZE                     4
-#define PragTyp_CACHE_SPILL                    5
-#define PragTyp_CASE_SENSITIVE_LIKE            6
-#define PragTyp_COLLATION_LIST                 7
-#define PragTyp_COMPILE_OPTIONS                8
-#define PragTyp_DATA_STORE_DIRECTORY           9
-#define PragTyp_DATABASE_LIST                 10
-#define PragTyp_DEFAULT_CACHE_SIZE            11
-#define PragTyp_ENCODING                      12
-#define PragTyp_FOREIGN_KEY_CHECK             13
-#define PragTyp_FOREIGN_KEY_LIST              14
-#define PragTyp_FUNCTION_LIST                 15
-#define PragTyp_HARD_HEAP_LIMIT               16
-#define PragTyp_INCREMENTAL_VACUUM            17
-#define PragTyp_INDEX_INFO                    18
-#define PragTyp_INDEX_LIST                    19
-#define PragTyp_INTEGRITY_CHECK               20
-#define PragTyp_JOURNAL_MODE                  21
-#define PragTyp_JOURNAL_SIZE_LIMIT            22
-#define PragTyp_LOCK_PROXY_FILE               23
-#define PragTyp_LOCKING_MODE                  24
-#define PragTyp_PAGE_COUNT                    25
-#define PragTyp_MMAP_SIZE                     26
-#define PragTyp_MODULE_LIST                   27
-#define PragTyp_OPTIMIZE                      28
-#define PragTyp_PAGE_SIZE                     29
-#define PragTyp_PRAGMA_LIST                   30
-#define PragTyp_SECURE_DELETE                 31
-#define PragTyp_SHRINK_MEMORY                 32
-#define PragTyp_SOFT_HEAP_LIMIT               33
-#define PragTyp_SYNCHRONOUS                   34
-#define PragTyp_TABLE_INFO                    35
-#define PragTyp_TEMP_STORE                    36
-#define PragTyp_TEMP_STORE_DIRECTORY          37
-#define PragTyp_THREADS                       38
-#define PragTyp_WAL_AUTOCHECKPOINT            39
-#define PragTyp_WAL_CHECKPOINT                40
-#define PragTyp_ACTIVATE_EXTENSIONS           41
-#define PragTyp_KEY                           42
-#define PragTyp_LOCK_STATUS                   43
-#define PragTyp_STATS                         44
-
-/* Property flags associated with various pragma. */
-#define PragFlg_NeedSchema 0x01 /* Force schema load before running */
-#define PragFlg_NoColumns  0x02 /* OP_ResultRow called with zero columns */
-#define PragFlg_NoColumns1 0x04 /* zero columns if RHS argument is present */
-#define PragFlg_ReadOnly   0x08 /* Read-only HEADER_VALUE */
-#define PragFlg_Result0    0x10 /* Acts as query when no argument */
-#define PragFlg_Result1    0x20 /* Acts as query when has one argument */
-#define PragFlg_SchemaOpt  0x40 /* Schema restricts name search if present */
-#define PragFlg_SchemaReq  0x80 /* Schema required - "main" is default */
-
-/* Names of columns for pragmas that return multi-column result
-** or that return single-column results where the name of the
-** result column is different from the name of the pragma
-*/
-static const char *const pragCName[] = {
-  /*   0 */ "id",          /* Used by: foreign_key_list */
-  /*   1 */ "seq",        
-  /*   2 */ "table",      
-  /*   3 */ "from",       
-  /*   4 */ "to",         
-  /*   5 */ "on_update",  
-  /*   6 */ "on_delete",  
-  /*   7 */ "match",      
-  /*   8 */ "cid",         /* Used by: table_xinfo */
-  /*   9 */ "name",       
-  /*  10 */ "type",       
-  /*  11 */ "notnull",    
-  /*  12 */ "dflt_value", 
-  /*  13 */ "pk",         
-  /*  14 */ "hidden",     
-                           /* table_info reuses 8 */
-  /*  15 */ "seqno",       /* Used by: index_xinfo */
-  /*  16 */ "cid",        
-  /*  17 */ "name",       
-  /*  18 */ "desc",       
-  /*  19 */ "coll",       
-  /*  20 */ "key",        
-  /*  21 */ "name",        /* Used by: function_list */
-  /*  22 */ "builtin",    
-  /*  23 */ "type",       
-  /*  24 */ "enc",        
-  /*  25 */ "narg",       
-  /*  26 */ "flags",      
-  /*  27 */ "tbl",         /* Used by: stats */
-  /*  28 */ "idx",        
-  /*  29 */ "wdth",       
-  /*  30 */ "hght",       
-  /*  31 */ "flgs",       
-  /*  32 */ "seq",         /* Used by: index_list */
-  /*  33 */ "name",       
-  /*  34 */ "unique",     
-  /*  35 */ "origin",     
-  /*  36 */ "partial",    
-  /*  37 */ "table",       /* Used by: foreign_key_check */
-  /*  38 */ "rowid",      
-  /*  39 */ "parent",     
-  /*  40 */ "fkid",       
-                           /* index_info reuses 15 */
-  /*  41 */ "seq",         /* Used by: database_list */
-  /*  42 */ "name",       
-  /*  43 */ "file",       
-  /*  44 */ "busy",        /* Used by: wal_checkpoint */
-  /*  45 */ "log",        
-  /*  46 */ "checkpointed",
-                           /* collation_list reuses 32 */
-  /*  47 */ "database",    /* Used by: lock_status */
-  /*  48 */ "status",     
-  /*  49 */ "cache_size",  /* Used by: default_cache_size */
-                           /* module_list pragma_list reuses 9 */
-  /*  50 */ "timeout",     /* Used by: busy_timeout */
-};
-
-/* Definitions of all built-in pragmas */
-typedef struct PragmaName {
-  const char *const zName; /* Name of pragma */
-  u8 ePragTyp;             /* PragTyp_XXX value */
-  u8 mPragFlg;             /* Zero or more PragFlg_XXX values */
-  u8 iPragCName;           /* Start of column names in pragCName[] */
-  u8 nPragCName;           /* Num of col names. 0 means use pragma name */
-  u64 iArg;                /* Extra argument */
-} PragmaName;
-static const PragmaName aPragmaName[] = {
-#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)
- {/* zName:     */ "activate_extensions",
-  /* ePragTyp:  */ PragTyp_ACTIVATE_EXTENSIONS,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "application_id",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_NoColumns1|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_APPLICATION_ID },
-#endif
-#if !defined(SQLITE_OMIT_AUTOVACUUM)
- {/* zName:     */ "auto_vacuum",
-  /* ePragTyp:  */ PragTyp_AUTO_VACUUM,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_AUTOMATIC_INDEX)
- {/* zName:     */ "automatic_index",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_AutoIndex },
-#endif
-#endif
- {/* zName:     */ "busy_timeout",
-  /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 50, 1,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "cache_size",
-  /* ePragTyp:  */ PragTyp_CACHE_SIZE,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "cache_spill",
-  /* ePragTyp:  */ PragTyp_CACHE_SPILL,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA)
- {/* zName:     */ "case_sensitive_like",
-  /* ePragTyp:  */ PragTyp_CASE_SENSITIVE_LIKE,
-  /* ePragFlg:  */ PragFlg_NoColumns,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
- {/* zName:     */ "cell_size_check",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_CellSizeCk },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "checkpoint_fullfsync",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_CkptFullFSync },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
- {/* zName:     */ "collation_list",
-  /* ePragTyp:  */ PragTyp_COLLATION_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 32, 2,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
- {/* zName:     */ "compile_options",
-  /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "count_changes",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_CountRows },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_OS_WIN
- {/* zName:     */ "data_store_directory",
-  /* ePragTyp:  */ PragTyp_DATA_STORE_DIRECTORY,
-  /* ePragFlg:  */ PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "data_version",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_ReadOnly|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_DATA_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
- {/* zName:     */ "database_list",
-  /* ePragTyp:  */ PragTyp_DATABASE_LIST,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0,
-  /* ColNames:  */ 41, 3,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
- {/* zName:     */ "default_cache_size",
-  /* ePragTyp:  */ PragTyp_DEFAULT_CACHE_SIZE,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 49, 1,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
- {/* zName:     */ "defer_foreign_keys",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_DeferFKs },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "empty_result_callbacks",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_NullCallback },
-#endif
-#if !defined(SQLITE_OMIT_UTF16)
- {/* zName:     */ "encoding",
-  /* ePragTyp:  */ PragTyp_ENCODING,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
- {/* zName:     */ "foreign_key_check",
-  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0,
-  /* ColNames:  */ 37, 4,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FOREIGN_KEY)
- {/* zName:     */ "foreign_key_list",
-  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 0, 8,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
- {/* zName:     */ "foreign_keys",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ForeignKeys },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "freelist_count",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_ReadOnly|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_FREE_PAGE_COUNT },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "full_column_names",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_FullColNames },
- {/* zName:     */ "fullfsync",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_FullFSync },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
- {/* zName:     */ "function_list",
-  /* ePragTyp:  */ PragTyp_FUNCTION_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 21, 6,
-  /* iArg:      */ 0 },
-#endif
-#endif
- {/* zName:     */ "hard_heap_limit",
-  /* ePragTyp:  */ PragTyp_HARD_HEAP_LIMIT,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if defined(SQLITE_HAS_CODEC)
- {/* zName:     */ "hexkey",
-  /* ePragTyp:  */ PragTyp_KEY,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 2 },
- {/* zName:     */ "hexrekey",
-  /* ePragTyp:  */ PragTyp_KEY,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 3 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if !defined(SQLITE_OMIT_CHECK)
- {/* zName:     */ "ignore_check_constraints",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_IgnoreChecks },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_AUTOVACUUM)
- {/* zName:     */ "incremental_vacuum",
-  /* ePragTyp:  */ PragTyp_INCREMENTAL_VACUUM,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_NoColumns,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
- {/* zName:     */ "index_info",
-  /* ePragTyp:  */ PragTyp_INDEX_INFO,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 15, 3,
-  /* iArg:      */ 0 },
- {/* zName:     */ "index_list",
-  /* ePragTyp:  */ PragTyp_INDEX_LIST,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 32, 5,
-  /* iArg:      */ 0 },
- {/* zName:     */ "index_xinfo",
-  /* ePragTyp:  */ PragTyp_INDEX_INFO,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 15, 6,
-  /* iArg:      */ 1 },
-#endif
-#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
- {/* zName:     */ "integrity_check",
-  /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_Result1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "journal_mode",
-  /* ePragTyp:  */ PragTyp_JOURNAL_MODE,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "journal_size_limit",
-  /* ePragTyp:  */ PragTyp_JOURNAL_SIZE_LIMIT,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if defined(SQLITE_HAS_CODEC)
- {/* zName:     */ "key",
-  /* ePragTyp:  */ PragTyp_KEY,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "legacy_alter_table",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_LegacyAlter },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE
- {/* zName:     */ "lock_proxy_file",
-  /* ePragTyp:  */ PragTyp_LOCK_PROXY_FILE,
-  /* ePragFlg:  */ PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
- {/* zName:     */ "lock_status",
-  /* ePragTyp:  */ PragTyp_LOCK_STATUS,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 47, 2,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "locking_mode",
-  /* ePragTyp:  */ PragTyp_LOCKING_MODE,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "max_page_count",
-  /* ePragTyp:  */ PragTyp_PAGE_COUNT,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "mmap_size",
-  /* ePragTyp:  */ PragTyp_MMAP_SIZE,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
-#if !defined(SQLITE_OMIT_VIRTUALTABLE)
-#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
- {/* zName:     */ "module_list",
-  /* ePragTyp:  */ PragTyp_MODULE_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 9, 1,
-  /* iArg:      */ 0 },
-#endif
-#endif
-#endif
- {/* zName:     */ "optimize",
-  /* ePragTyp:  */ PragTyp_OPTIMIZE,
-  /* ePragFlg:  */ PragFlg_Result1|PragFlg_NeedSchema,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "page_count",
-  /* ePragTyp:  */ PragTyp_PAGE_COUNT,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "page_size",
-  /* ePragTyp:  */ PragTyp_PAGE_SIZE,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if defined(SQLITE_DEBUG)
- {/* zName:     */ "parser_trace",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ParserTrace },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_INTROSPECTION_PRAGMAS)
- {/* zName:     */ "pragma_list",
-  /* ePragTyp:  */ PragTyp_PRAGMA_LIST,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 9, 1,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "query_only",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_QueryOnly },
-#endif
-#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
- {/* zName:     */ "quick_check",
-  /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_Result1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "read_uncommitted",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ReadUncommit },
- {/* zName:     */ "recursive_triggers",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_RecTriggers },
-#endif
-#if defined(SQLITE_HAS_CODEC)
- {/* zName:     */ "rekey",
-  /* ePragTyp:  */ PragTyp_KEY,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 1 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "reverse_unordered_selects",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ReverseOrder },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "schema_version",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_NoColumns1|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_SCHEMA_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "secure_delete",
-  /* ePragTyp:  */ PragTyp_SECURE_DELETE,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "short_column_names",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_ShortColNames },
-#endif
- {/* zName:     */ "shrink_memory",
-  /* ePragTyp:  */ PragTyp_SHRINK_MEMORY,
-  /* ePragFlg:  */ PragFlg_NoColumns,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "soft_heap_limit",
-  /* ePragTyp:  */ PragTyp_SOFT_HEAP_LIMIT,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if defined(SQLITE_DEBUG)
- {/* zName:     */ "sql_trace",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_SqlTrace },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) && defined(SQLITE_DEBUG)
- {/* zName:     */ "stats",
-  /* ePragTyp:  */ PragTyp_STATS,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
-  /* ColNames:  */ 27, 5,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "synchronous",
-  /* ePragTyp:  */ PragTyp_SYNCHRONOUS,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
- {/* zName:     */ "table_info",
-  /* ePragTyp:  */ PragTyp_TABLE_INFO,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 8, 6,
-  /* iArg:      */ 0 },
- {/* zName:     */ "table_xinfo",
-  /* ePragTyp:  */ PragTyp_TABLE_INFO,
-  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
-  /* ColNames:  */ 8, 7,
-  /* iArg:      */ 1 },
-#endif
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
- {/* zName:     */ "temp_store",
-  /* ePragTyp:  */ PragTyp_TEMP_STORE,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "temp_store_directory",
-  /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
-  /* ePragFlg:  */ PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#endif
-#if defined(SQLITE_HAS_CODEC)
- {/* zName:     */ "textkey",
-  /* ePragTyp:  */ PragTyp_KEY,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 4 },
- {/* zName:     */ "textrekey",
-  /* ePragTyp:  */ PragTyp_KEY,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 5 },
-#endif
- {/* zName:     */ "threads",
-  /* ePragTyp:  */ PragTyp_THREADS,
-  /* ePragFlg:  */ PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "trusted_schema",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_TrustedSchema },
-#endif
-#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
- {/* zName:     */ "user_version",
-  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
-  /* ePragFlg:  */ PragFlg_NoColumns1|PragFlg_Result0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ BTREE_USER_VERSION },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
-#if defined(SQLITE_DEBUG)
- {/* zName:     */ "vdbe_addoptrace",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_VdbeAddopTrace },
- {/* zName:     */ "vdbe_debug",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_SqlTrace|SQLITE_VdbeListing|SQLITE_VdbeTrace },
- {/* zName:     */ "vdbe_eqp",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_VdbeEQP },
- {/* zName:     */ "vdbe_listing",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_VdbeListing },
- {/* zName:     */ "vdbe_trace",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_VdbeTrace },
-#endif
-#endif
-#if !defined(SQLITE_OMIT_WAL)
- {/* zName:     */ "wal_autocheckpoint",
-  /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
-  /* ePragFlg:  */ 0,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ 0 },
- {/* zName:     */ "wal_checkpoint",
-  /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
-  /* ePragFlg:  */ PragFlg_NeedSchema,
-  /* ColNames:  */ 44, 3,
-  /* iArg:      */ 0 },
-#endif
-#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
- {/* zName:     */ "writable_schema",
-  /* ePragTyp:  */ PragTyp_FLAG,
-  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
-  /* ColNames:  */ 0, 0,
-  /* iArg:      */ SQLITE_WriteSchema|SQLITE_NoSchemaError },
-#endif
-};
-/* Number of pragmas: 66 on by default, 82 total. */
-
-/************** End of pragma.h **********************************************/
-/************** Continuing where we left off in pragma.c *********************/
-
-/*
-** Interpret the given string as a safety level.  Return 0 for OFF,
-** 1 for ON or NORMAL, 2 for FULL, and 3 for EXTRA.  Return 1 for an empty or 
-** unrecognized string argument.  The FULL and EXTRA option is disallowed
-** if the omitFull parameter it 1.
-**
-** Note that the values returned are one less that the values that
-** should be passed into tdsqlite3BtreeSetSafetyLevel().  The is done
-** to support legacy SQL code.  The safety level used to be boolean
-** and older scripts may have used numbers 0 for OFF and 1 for ON.
-*/
-static u8 getSafetyLevel(const char *z, int omitFull, u8 dflt){
-                             /* 123456789 123456789 123 */
-  static const char zText[] = "onoffalseyestruextrafull";
-  static const u8 iOffset[] = {0, 1, 2,  4,    9,  12,  15,   20};
-  static const u8 iLength[] = {2, 2, 3,  5,    3,   4,   5,    4};
-  static const u8 iValue[] =  {1, 0, 0,  0,    1,   1,   3,    2};
-                            /* on no off false yes true extra full */
-  int i, n;
-  if( tdsqlite3Isdigit(*z) ){
-    return (u8)tdsqlite3Atoi(z);
-  }
-  n = tdsqlite3Strlen30(z);
-  for(i=0; i<ArraySize(iLength); i++){
-    if( iLength[i]==n && tdsqlite3StrNICmp(&zText[iOffset[i]],z,n)==0
-     && (!omitFull || iValue[i]<=1)
-    ){
-      return iValue[i];
-    }
-  }
-  return dflt;
-}
-
-/*
-** Interpret the given string as a boolean value.
-*/
-SQLITE_PRIVATE u8 tdsqlite3GetBoolean(const char *z, u8 dflt){
-  return getSafetyLevel(z,1,dflt)!=0;
-}
-
-/* The tdsqlite3GetBoolean() function is used by other modules but the
-** remainder of this file is specific to PRAGMA processing.  So omit
-** the rest of the file if PRAGMAs are omitted from the build.
-*/
-#if !defined(SQLITE_OMIT_PRAGMA)
-
-/*
-** Interpret the given string as a locking mode value.
-*/
-static int getLockingMode(const char *z){
-  if( z ){
-    if( 0==tdsqlite3StrICmp(z, "exclusive") ) return PAGER_LOCKINGMODE_EXCLUSIVE;
-    if( 0==tdsqlite3StrICmp(z, "normal") ) return PAGER_LOCKINGMODE_NORMAL;
-  }
-  return PAGER_LOCKINGMODE_QUERY;
-}
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-/*
-** Interpret the given string as an auto-vacuum mode value.
-**
-** The following strings, "none", "full" and "incremental" are 
-** acceptable, as are their numeric equivalents: 0, 1 and 2 respectively.
-*/
-static int getAutoVacuum(const char *z){
-  int i;
-  if( 0==tdsqlite3StrICmp(z, "none") ) return BTREE_AUTOVACUUM_NONE;
-  if( 0==tdsqlite3StrICmp(z, "full") ) return BTREE_AUTOVACUUM_FULL;
-  if( 0==tdsqlite3StrICmp(z, "incremental") ) return BTREE_AUTOVACUUM_INCR;
-  i = tdsqlite3Atoi(z);
-  return (u8)((i>=0&&i<=2)?i:0);
-}
-#endif /* ifndef SQLITE_OMIT_AUTOVACUUM */
-
-#ifndef SQLITE_OMIT_PAGER_PRAGMAS
-/*
-** Interpret the given string as a temp db location. Return 1 for file
-** backed temporary databases, 2 for the Red-Black tree in memory database
-** and 0 to use the compile-time default.
-*/
-static int getTempStore(const char *z){
-  if( z[0]>='0' && z[0]<='2' ){
-    return z[0] - '0';
-  }else if( tdsqlite3StrICmp(z, "file")==0 ){
-    return 1;
-  }else if( tdsqlite3StrICmp(z, "memory")==0 ){
-    return 2;
-  }else{
-    return 0;
-  }
-}
-#endif /* SQLITE_PAGER_PRAGMAS */
-
-#ifndef SQLITE_OMIT_PAGER_PRAGMAS
-/*
-** Invalidate temp storage, either when the temp storage is changed
-** from default, or when 'file' and the temp_store_directory has changed
-*/
-static int invalidateTempStorage(Parse *pParse){
-  tdsqlite3 *db = pParse->db;
-  if( db->aDb[1].pBt!=0 ){
-    if( !db->autoCommit || tdsqlite3BtreeIsInReadTrans(db->aDb[1].pBt) ){
-      tdsqlite3ErrorMsg(pParse, "temporary storage cannot be changed "
-        "from within a transaction");
-      return SQLITE_ERROR;
-    }
-    tdsqlite3BtreeClose(db->aDb[1].pBt);
-    db->aDb[1].pBt = 0;
-    tdsqlite3ResetAllSchemasOfConnection(db);
-  }
-  return SQLITE_OK;
-}
-#endif /* SQLITE_PAGER_PRAGMAS */
-
-#ifndef SQLITE_OMIT_PAGER_PRAGMAS
-/*
-** If the TEMP database is open, close it and mark the database schema
-** as needing reloading.  This must be done when using the SQLITE_TEMP_STORE
-** or DEFAULT_TEMP_STORE pragmas.
-*/
-static int changeTempStorage(Parse *pParse, const char *zStorageType){
-  int ts = getTempStore(zStorageType);
-  tdsqlite3 *db = pParse->db;
-  if( db->temp_store==ts ) return SQLITE_OK;
-  if( invalidateTempStorage( pParse ) != SQLITE_OK ){
-    return SQLITE_ERROR;
-  }
-  db->temp_store = (u8)ts;
-  return SQLITE_OK;
-}
-#endif /* SQLITE_PAGER_PRAGMAS */
-
-/*
-** Set result column names for a pragma.
-*/
-static void setPragmaResultColumnNames(
-  Vdbe *v,                     /* The query under construction */
-  const PragmaName *pPragma    /* The pragma */
-){
-  u8 n = pPragma->nPragCName;
-  tdsqlite3VdbeSetNumCols(v, n==0 ? 1 : n);
-  if( n==0 ){
-    tdsqlite3VdbeSetColName(v, 0, COLNAME_NAME, pPragma->zName, SQLITE_STATIC);
-  }else{
-    int i, j;
-    for(i=0, j=pPragma->iPragCName; i<n; i++, j++){
-      tdsqlite3VdbeSetColName(v, i, COLNAME_NAME, pragCName[j], SQLITE_STATIC);
-    }
-  }
-}
-
-/*
-** Generate code to return a single integer value.
-*/
-static void returnSingleInt(Vdbe *v, i64 value){
-  tdsqlite3VdbeAddOp4Dup8(v, OP_Int64, 0, 1, 0, (const u8*)&value, P4_INT64);
-  tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-}
-
-/*
-** Generate code to return a single text value.
-*/
-static void returnSingleText(
-  Vdbe *v,                /* Prepared statement under construction */
-  const char *zValue      /* Value to be returned */
-){
-  if( zValue ){
-    tdsqlite3VdbeLoadString(v, 1, (const char*)zValue);
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-  }
-}
-
-
-/*
-** Set the safety_level and pager flags for pager iDb.  Or if iDb<0
-** set these values for all pagers.
-*/
-#ifndef SQLITE_OMIT_PAGER_PRAGMAS
-static void setAllPagerFlags(tdsqlite3 *db){
-  if( db->autoCommit ){
-    Db *pDb = db->aDb;
-    int n = db->nDb;
-    assert( SQLITE_FullFSync==PAGER_FULLFSYNC );
-    assert( SQLITE_CkptFullFSync==PAGER_CKPT_FULLFSYNC );
-    assert( SQLITE_CacheSpill==PAGER_CACHESPILL );
-    assert( (PAGER_FULLFSYNC | PAGER_CKPT_FULLFSYNC | PAGER_CACHESPILL)
-             ==  PAGER_FLAGS_MASK );
-    assert( (pDb->safety_level & PAGER_SYNCHRONOUS_MASK)==pDb->safety_level );
-    while( (n--) > 0 ){
-      if( pDb->pBt ){
-        tdsqlite3BtreeSetPagerFlags(pDb->pBt,
-                 pDb->safety_level | (db->flags & PAGER_FLAGS_MASK) );
-      }
-      pDb++;
-    }
-  }
-}
-#else
-# define setAllPagerFlags(X)  /* no-op */
-#endif
-
-
-/*
-** Return a human-readable name for a constraint resolution action.
-*/
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-static const char *actionName(u8 action){
-  const char *zName;
-  switch( action ){
-    case OE_SetNull:  zName = "SET NULL";        break;
-    case OE_SetDflt:  zName = "SET DEFAULT";     break;
-    case OE_Cascade:  zName = "CASCADE";         break;
-    case OE_Restrict: zName = "RESTRICT";        break;
-    default:          zName = "NO ACTION";  
-                      assert( action==OE_None ); break;
-  }
-  return zName;
-}
-#endif
-
-
-/*
-** Parameter eMode must be one of the PAGER_JOURNALMODE_XXX constants
-** defined in pager.h. This function returns the associated lowercase
-** journal-mode name.
-*/
-SQLITE_PRIVATE const char *tdsqlite3JournalModename(int eMode){
-  static char * const azModeName[] = {
-    "delete", "persist", "off", "truncate", "memory"
-#ifndef SQLITE_OMIT_WAL
-     , "wal"
-#endif
-  };
-  assert( PAGER_JOURNALMODE_DELETE==0 );
-  assert( PAGER_JOURNALMODE_PERSIST==1 );
-  assert( PAGER_JOURNALMODE_OFF==2 );
-  assert( PAGER_JOURNALMODE_TRUNCATE==3 );
-  assert( PAGER_JOURNALMODE_MEMORY==4 );
-  assert( PAGER_JOURNALMODE_WAL==5 );
-  assert( eMode>=0 && eMode<=ArraySize(azModeName) );
-
-  if( eMode==ArraySize(azModeName) ) return 0;
-  return azModeName[eMode];
-}
-
-/*
-** Locate a pragma in the aPragmaName[] array.
-*/
-static const PragmaName *pragmaLocate(const char *zName){
-  int upr, lwr, mid = 0, rc;
-  lwr = 0;
-  upr = ArraySize(aPragmaName)-1;
-  while( lwr<=upr ){
-    mid = (lwr+upr)/2;
-    rc = tdsqlite3_stricmp(zName, aPragmaName[mid].zName);
-    if( rc==0 ) break;
-    if( rc<0 ){
-      upr = mid - 1;
-    }else{
-      lwr = mid + 1;
-    }
-  }
-  return lwr>upr ? 0 : &aPragmaName[mid];
-}
-
-/*
-** Create zero or more entries in the output for the SQL functions
-** defined by FuncDef p.
-*/
-static void pragmaFunclistLine(
-  Vdbe *v,               /* The prepared statement being created */
-  FuncDef *p,            /* A particular function definition */
-  int isBuiltin,         /* True if this is a built-in function */
-  int showInternFuncs    /* True if showing internal functions */
-){
-  for(; p; p=p->pNext){
-    const char *zType;
-    static const u32 mask = 
-        SQLITE_DETERMINISTIC |
-        SQLITE_DIRECTONLY |
-        SQLITE_SUBTYPE |
-        SQLITE_INNOCUOUS |
-        SQLITE_FUNC_INTERNAL
-    ;
-    static const char *azEnc[] = { 0, "utf8", "utf16le", "utf16be" };
-
-    assert( SQLITE_FUNC_ENCMASK==0x3 );
-    assert( strcmp(azEnc[SQLITE_UTF8],"utf8")==0 );
-    assert( strcmp(azEnc[SQLITE_UTF16LE],"utf16le")==0 );
-    assert( strcmp(azEnc[SQLITE_UTF16BE],"utf16be")==0 );
-
-    if( p->xSFunc==0 ) continue;
-    if( (p->funcFlags & SQLITE_FUNC_INTERNAL)!=0
-     && showInternFuncs==0
-    ){
-      continue;
-    }    
-    if( p->xValue!=0 ){
-      zType = "w";
-    }else if( p->xFinalize!=0 ){
-      zType = "a";
-    }else{
-      zType = "s";
-    }
-    tdsqlite3VdbeMultiLoad(v, 1, "sissii",
-       p->zName, isBuiltin,
-       zType, azEnc[p->funcFlags&SQLITE_FUNC_ENCMASK],
-       p->nArg,
-       (p->funcFlags & mask) ^ SQLITE_INNOCUOUS
-    );
-  }
-}
-
-
-/*
-** Helper subroutine for PRAGMA integrity_check:
-**
-** Generate code to output a single-column result row with a value of the
-** string held in register 3.  Decrement the result count in register 1
-** and halt if the maximum number of result rows have been issued.
-*/
-static int integrityCheckResultRow(Vdbe *v){
-  int addr;
-  tdsqlite3VdbeAddOp2(v, OP_ResultRow, 3, 1);
-  addr = tdsqlite3VdbeAddOp3(v, OP_IfPos, 1, tdsqlite3VdbeCurrentAddr(v)+2, 1);
-  VdbeCoverage(v);
-  tdsqlite3VdbeAddOp0(v, OP_Halt);
-  return addr;
-}
-
-/*
-** Process a pragma statement.  
-**
-** Pragmas are of this form:
-**
-**      PRAGMA [schema.]id [= value]
-**
-** The identifier might also be a string.  The value is a string, and
-** identifier, or a number.  If minusFlag is true, then the value is
-** a number that was preceded by a minus sign.
-**
-** If the left side is "database.id" then pId1 is the database name
-** and pId2 is the id.  If the left side is just "id" then pId1 is the
-** id and pId2 is any empty string.
-*/
-SQLITE_PRIVATE void tdsqlite3Pragma(
-  Parse *pParse, 
-  Token *pId1,        /* First part of [schema.]id field */
-  Token *pId2,        /* Second part of [schema.]id field, or NULL */
-  Token *pValue,      /* Token for <value>, or NULL */
-  int minusFlag       /* True if a '-' sign preceded <value> */
-){
-  char *zLeft = 0;       /* Nul-terminated UTF-8 string <id> */
-  char *zRight = 0;      /* Nul-terminated UTF-8 string <value>, or NULL */
-  const char *zDb = 0;   /* The database name */
-  Token *pId;            /* Pointer to <id> token */
-  char *aFcntl[4];       /* Argument to SQLITE_FCNTL_PRAGMA */
-  int iDb;               /* Database index for <database> */
-  int rc;                      /* return value form SQLITE_FCNTL_PRAGMA */
-  tdsqlite3 *db = pParse->db;    /* The database connection */
-  Db *pDb;                     /* The specific database being pragmaed */
-  Vdbe *v = tdsqlite3GetVdbe(pParse);  /* Prepared statement */
-  const PragmaName *pPragma;   /* The pragma */
-
-  if( v==0 ) return;
-  tdsqlite3VdbeRunOnlyOnce(v);
-  pParse->nMem = 2;
-
-  /* Interpret the [schema.] part of the pragma statement. iDb is the
-  ** index of the database this pragma is being applied to in db.aDb[]. */
-  iDb = tdsqlite3TwoPartName(pParse, pId1, pId2, &pId);
-  if( iDb<0 ) return;
-  pDb = &db->aDb[iDb];
-
-  /* If the temp database has been explicitly named as part of the 
-  ** pragma, make sure it is open. 
-  */
-  if( iDb==1 && tdsqlite3OpenTempDatabase(pParse) ){
-    return;
-  }
-
-  zLeft = tdsqlite3NameFromToken(db, pId);
-  if( !zLeft ) return;
-  if( minusFlag ){
-    zRight = tdsqlite3MPrintf(db, "-%T", pValue);
-  }else{
-    zRight = tdsqlite3NameFromToken(db, pValue);
-  }
-
-  assert( pId2 );
-  zDb = pId2->n>0 ? pDb->zDbSName : 0;
-  if( tdsqlite3AuthCheck(pParse, SQLITE_PRAGMA, zLeft, zRight, zDb) ){
-    goto pragma_out;
-  }
-
-  /* Send an SQLITE_FCNTL_PRAGMA file-control to the underlying VFS
-  ** connection.  If it returns SQLITE_OK, then assume that the VFS
-  ** handled the pragma and generate a no-op prepared statement.
-  **
-  ** IMPLEMENTATION-OF: R-12238-55120 Whenever a PRAGMA statement is parsed,
-  ** an SQLITE_FCNTL_PRAGMA file control is sent to the open tdsqlite3_file
-  ** object corresponding to the database file to which the pragma
-  ** statement refers.
-  **
-  ** IMPLEMENTATION-OF: R-29875-31678 The argument to the SQLITE_FCNTL_PRAGMA
-  ** file control is an array of pointers to strings (char**) in which the
-  ** second element of the array is the name of the pragma and the third
-  ** element is the argument to the pragma or NULL if the pragma has no
-  ** argument.
-  */
-  aFcntl[0] = 0;
-  aFcntl[1] = zLeft;
-  aFcntl[2] = zRight;
-  aFcntl[3] = 0;
-  db->busyHandler.nBusy = 0;
-  rc = tdsqlite3_file_control(db, zDb, SQLITE_FCNTL_PRAGMA, (void*)aFcntl);
-  if( rc==SQLITE_OK ){
-    tdsqlite3VdbeSetNumCols(v, 1);
-    tdsqlite3VdbeSetColName(v, 0, COLNAME_NAME, aFcntl[0], SQLITE_TRANSIENT);
-    returnSingleText(v, aFcntl[0]);
-    tdsqlite3_free(aFcntl[0]);
-    goto pragma_out;
-  }
-  if( rc!=SQLITE_NOTFOUND ){
-    if( aFcntl[0] ){
-      tdsqlite3ErrorMsg(pParse, "%s", aFcntl[0]);
-      tdsqlite3_free(aFcntl[0]);
-    }
-    pParse->nErr++;
-    pParse->rc = rc;
-
-    goto pragma_out;
-  }
-
-/* BEGIN SQLCIPHER */
-#ifdef SQLITE_HAS_CODEC
-  if(sqlcipher_codec_pragma(db, iDb, pParse, zLeft, zRight)) { 
-    /* sqlcipher_codec_pragma executes internal */
-    goto pragma_out;
-  }
-#endif
-/* END SQLCIPHER */  
-
-  /* Locate the pragma in the lookup table */
-  pPragma = pragmaLocate(zLeft);
-  if( pPragma==0 ) goto pragma_out;
-
-  /* Make sure the database schema is loaded if the pragma requires that */
-  if( (pPragma->mPragFlg & PragFlg_NeedSchema)!=0 ){
-    if( tdsqlite3ReadSchema(pParse) ) goto pragma_out;
-  }
-
-  /* Register the result column names for pragmas that return results */
-  if( (pPragma->mPragFlg & PragFlg_NoColumns)==0 
-   && ((pPragma->mPragFlg & PragFlg_NoColumns1)==0 || zRight==0)
-  ){
-    setPragmaResultColumnNames(v, pPragma);
-  }
-
-  /* Jump to the appropriate pragma handler */
-  switch( pPragma->ePragTyp ){
-  
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
-  /*
-  **  PRAGMA [schema.]default_cache_size
-  **  PRAGMA [schema.]default_cache_size=N
-  **
-  ** The first form reports the current persistent setting for the
-  ** page cache size.  The value returned is the maximum number of
-  ** pages in the page cache.  The second form sets both the current
-  ** page cache size value and the persistent page cache size value
-  ** stored in the database file.
-  **
-  ** Older versions of SQLite would set the default cache size to a
-  ** negative number to indicate synchronous=OFF.  These days, synchronous
-  ** is always on by default regardless of the sign of the default cache
-  ** size.  But continue to take the absolute value of the default cache
-  ** size of historical compatibility.
-  */
-  case PragTyp_DEFAULT_CACHE_SIZE: {
-    static const int iLn = VDBE_OFFSET_LINENO(2);
-    static const VdbeOpList getCacheSize[] = {
-      { OP_Transaction, 0, 0,        0},                         /* 0 */
-      { OP_ReadCookie,  0, 1,        BTREE_DEFAULT_CACHE_SIZE},  /* 1 */
-      { OP_IfPos,       1, 8,        0},
-      { OP_Integer,     0, 2,        0},
-      { OP_Subtract,    1, 2,        1},
-      { OP_IfPos,       1, 8,        0},
-      { OP_Integer,     0, 1,        0},                         /* 6 */
-      { OP_Noop,        0, 0,        0},
-      { OP_ResultRow,   1, 1,        0},
-    };
-    VdbeOp *aOp;
-    tdsqlite3VdbeUsesBtree(v, iDb);
-    if( !zRight ){
-      pParse->nMem += 2;
-      tdsqlite3VdbeVerifyNoMallocRequired(v, ArraySize(getCacheSize));
-      aOp = tdsqlite3VdbeAddOpList(v, ArraySize(getCacheSize), getCacheSize, iLn);
-      if( ONLY_IF_REALLOC_STRESS(aOp==0) ) break;
-      aOp[0].p1 = iDb;
-      aOp[1].p1 = iDb;
-      aOp[6].p1 = SQLITE_DEFAULT_CACHE_SIZE;
-    }else{
-      int size = tdsqlite3AbsInt32(tdsqlite3Atoi(zRight));
-      tdsqlite3BeginWriteOperation(pParse, 0, iDb);
-      tdsqlite3VdbeAddOp3(v, OP_SetCookie, iDb, BTREE_DEFAULT_CACHE_SIZE, size);
-      assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-      pDb->pSchema->cache_size = size;
-      tdsqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
-    }
-    break;
-  }
-#endif /* !SQLITE_OMIT_PAGER_PRAGMAS && !SQLITE_OMIT_DEPRECATED */
-
-#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
-  /*
-  **  PRAGMA [schema.]page_size
-  **  PRAGMA [schema.]page_size=N
-  **
-  ** The first form reports the current setting for the
-  ** database page size in bytes.  The second form sets the
-  ** database page size value.  The value can only be set if
-  ** the database has not yet been created.
-  */
-  case PragTyp_PAGE_SIZE: {
-    Btree *pBt = pDb->pBt;
-    assert( pBt!=0 );
-    if( !zRight ){
-      int size = ALWAYS(pBt) ? tdsqlite3BtreeGetPageSize(pBt) : 0;
-      returnSingleInt(v, size);
-    }else{
-      /* Malloc may fail when setting the page-size, as there is an internal
-      ** buffer that the pager module resizes using tdsqlite3_realloc().
-      */
-      db->nextPagesize = tdsqlite3Atoi(zRight);
-      if( SQLITE_NOMEM==tdsqlite3BtreeSetPageSize(pBt, db->nextPagesize,-1,0) ){
-        tdsqlite3OomFault(db);
-      }
-    }
-    break;
-  }
-
-  /*
-  **  PRAGMA [schema.]secure_delete
-  **  PRAGMA [schema.]secure_delete=ON/OFF/FAST
-  **
-  ** The first form reports the current setting for the
-  ** secure_delete flag.  The second form changes the secure_delete
-  ** flag setting and reports the new value.
-  */
-  case PragTyp_SECURE_DELETE: {
-    Btree *pBt = pDb->pBt;
-    int b = -1;
-    assert( pBt!=0 );
-    if( zRight ){
-      if( tdsqlite3_stricmp(zRight, "fast")==0 ){
-        b = 2;
-      }else{
-        b = tdsqlite3GetBoolean(zRight, 0);
-      }
-    }
-    if( pId2->n==0 && b>=0 ){
-      int ii;
-      for(ii=0; ii<db->nDb; ii++){
-        tdsqlite3BtreeSecureDelete(db->aDb[ii].pBt, b);
-      }
-    }
-    b = tdsqlite3BtreeSecureDelete(pBt, b);
-    returnSingleInt(v, b);
-    break;
-  }
-
-  /*
-  **  PRAGMA [schema.]max_page_count
-  **  PRAGMA [schema.]max_page_count=N
-  **
-  ** The first form reports the current setting for the
-  ** maximum number of pages in the database file.  The 
-  ** second form attempts to change this setting.  Both
-  ** forms return the current setting.
-  **
-  ** The absolute value of N is used.  This is undocumented and might
-  ** change.  The only purpose is to provide an easy way to test
-  ** the tdsqlite3AbsInt32() function.
-  **
-  **  PRAGMA [schema.]page_count
-  **
-  ** Return the number of pages in the specified database.
-  */
-  case PragTyp_PAGE_COUNT: {
-    int iReg;
-    tdsqlite3CodeVerifySchema(pParse, iDb);
-    iReg = ++pParse->nMem;
-    if( tdsqlite3Tolower(zLeft[0])=='p' ){
-      tdsqlite3VdbeAddOp2(v, OP_Pagecount, iDb, iReg);
-    }else{
-      tdsqlite3VdbeAddOp3(v, OP_MaxPgcnt, iDb, iReg, 
-                        tdsqlite3AbsInt32(tdsqlite3Atoi(zRight)));
-    }
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, iReg, 1);
-    break;
-  }
-
-  /*
-  **  PRAGMA [schema.]locking_mode
-  **  PRAGMA [schema.]locking_mode = (normal|exclusive)
-  */
-  case PragTyp_LOCKING_MODE: {
-    const char *zRet = "normal";
-    int eMode = getLockingMode(zRight);
-
-    if( pId2->n==0 && eMode==PAGER_LOCKINGMODE_QUERY ){
-      /* Simple "PRAGMA locking_mode;" statement. This is a query for
-      ** the current default locking mode (which may be different to
-      ** the locking-mode of the main database).
-      */
-      eMode = db->dfltLockMode;
-    }else{
-      Pager *pPager;
-      if( pId2->n==0 ){
-        /* This indicates that no database name was specified as part
-        ** of the PRAGMA command. In this case the locking-mode must be
-        ** set on all attached databases, as well as the main db file.
-        **
-        ** Also, the sqlite3.dfltLockMode variable is set so that
-        ** any subsequently attached databases also use the specified
-        ** locking mode.
-        */
-        int ii;
-        assert(pDb==&db->aDb[0]);
-        for(ii=2; ii<db->nDb; ii++){
-          pPager = tdsqlite3BtreePager(db->aDb[ii].pBt);
-          tdsqlite3PagerLockingMode(pPager, eMode);
-        }
-        db->dfltLockMode = (u8)eMode;
-      }
-      pPager = tdsqlite3BtreePager(pDb->pBt);
-      eMode = tdsqlite3PagerLockingMode(pPager, eMode);
-    }
-
-    assert( eMode==PAGER_LOCKINGMODE_NORMAL
-            || eMode==PAGER_LOCKINGMODE_EXCLUSIVE );
-    if( eMode==PAGER_LOCKINGMODE_EXCLUSIVE ){
-      zRet = "exclusive";
-    }
-    returnSingleText(v, zRet);
-    break;
-  }
-
-  /*
-  **  PRAGMA [schema.]journal_mode
-  **  PRAGMA [schema.]journal_mode =
-  **                      (delete|persist|off|truncate|memory|wal|off)
-  */
-  case PragTyp_JOURNAL_MODE: {
-    int eMode;        /* One of the PAGER_JOURNALMODE_XXX symbols */
-    int ii;           /* Loop counter */
-
-    if( zRight==0 ){
-      /* If there is no "=MODE" part of the pragma, do a query for the
-      ** current mode */
-      eMode = PAGER_JOURNALMODE_QUERY;
-    }else{
-      const char *zMode;
-      int n = tdsqlite3Strlen30(zRight);
-      for(eMode=0; (zMode = tdsqlite3JournalModename(eMode))!=0; eMode++){
-        if( tdsqlite3StrNICmp(zRight, zMode, n)==0 ) break;
-      }
-      if( !zMode ){
-        /* If the "=MODE" part does not match any known journal mode,
-        ** then do a query */
-        eMode = PAGER_JOURNALMODE_QUERY;
-      }
-      if( eMode==PAGER_JOURNALMODE_OFF && (db->flags & SQLITE_Defensive)!=0 ){
-        /* Do not allow journal-mode "OFF" in defensive since the database
-        ** can become corrupted using ordinary SQL when the journal is off */
-        eMode = PAGER_JOURNALMODE_QUERY;
-      }
-    }
-    if( eMode==PAGER_JOURNALMODE_QUERY && pId2->n==0 ){
-      /* Convert "PRAGMA journal_mode" into "PRAGMA main.journal_mode" */
-      iDb = 0;
-      pId2->n = 1;
-    }
-    for(ii=db->nDb-1; ii>=0; ii--){
-      if( db->aDb[ii].pBt && (ii==iDb || pId2->n==0) ){
-        tdsqlite3VdbeUsesBtree(v, ii);
-        tdsqlite3VdbeAddOp3(v, OP_JournalMode, ii, 1, eMode);
-      }
-    }
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-    break;
-  }
-
-  /*
-  **  PRAGMA [schema.]journal_size_limit
-  **  PRAGMA [schema.]journal_size_limit=N
-  **
-  ** Get or set the size limit on rollback journal files.
-  */
-  case PragTyp_JOURNAL_SIZE_LIMIT: {
-    Pager *pPager = tdsqlite3BtreePager(pDb->pBt);
-    i64 iLimit = -2;
-    if( zRight ){
-      tdsqlite3DecOrHexToI64(zRight, &iLimit);
-      if( iLimit<-1 ) iLimit = -1;
-    }
-    iLimit = tdsqlite3PagerJournalSizeLimit(pPager, iLimit);
-    returnSingleInt(v, iLimit);
-    break;
-  }
-
-#endif /* SQLITE_OMIT_PAGER_PRAGMAS */
-
-  /*
-  **  PRAGMA [schema.]auto_vacuum
-  **  PRAGMA [schema.]auto_vacuum=N
-  **
-  ** Get or set the value of the database 'auto-vacuum' parameter.
-  ** The value is one of:  0 NONE 1 FULL 2 INCREMENTAL
-  */
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  case PragTyp_AUTO_VACUUM: {
-    Btree *pBt = pDb->pBt;
-    assert( pBt!=0 );
-    if( !zRight ){
-      returnSingleInt(v, tdsqlite3BtreeGetAutoVacuum(pBt));
-    }else{
-      int eAuto = getAutoVacuum(zRight);
-      assert( eAuto>=0 && eAuto<=2 );
-      db->nextAutovac = (u8)eAuto;
-      /* Call SetAutoVacuum() to set initialize the internal auto and
-      ** incr-vacuum flags. This is required in case this connection
-      ** creates the database file. It is important that it is created
-      ** as an auto-vacuum capable db.
-      */
-      rc = tdsqlite3BtreeSetAutoVacuum(pBt, eAuto);
-      if( rc==SQLITE_OK && (eAuto==1 || eAuto==2) ){
-        /* When setting the auto_vacuum mode to either "full" or 
-        ** "incremental", write the value of meta[6] in the database
-        ** file. Before writing to meta[6], check that meta[3] indicates
-        ** that this really is an auto-vacuum capable database.
-        */
-        static const int iLn = VDBE_OFFSET_LINENO(2);
-        static const VdbeOpList setMeta6[] = {
-          { OP_Transaction,    0,         1,                 0},    /* 0 */
-          { OP_ReadCookie,     0,         1,         BTREE_LARGEST_ROOT_PAGE},
-          { OP_If,             1,         0,                 0},    /* 2 */
-          { OP_Halt,           SQLITE_OK, OE_Abort,          0},    /* 3 */
-          { OP_SetCookie,      0,         BTREE_INCR_VACUUM, 0},    /* 4 */
-        };
-        VdbeOp *aOp;
-        int iAddr = tdsqlite3VdbeCurrentAddr(v);
-        tdsqlite3VdbeVerifyNoMallocRequired(v, ArraySize(setMeta6));
-        aOp = tdsqlite3VdbeAddOpList(v, ArraySize(setMeta6), setMeta6, iLn);
-        if( ONLY_IF_REALLOC_STRESS(aOp==0) ) break;
-        aOp[0].p1 = iDb;
-        aOp[1].p1 = iDb;
-        aOp[2].p2 = iAddr+4;
-        aOp[4].p1 = iDb;
-        aOp[4].p3 = eAuto - 1;
-        tdsqlite3VdbeUsesBtree(v, iDb);
-      }
-    }
-    break;
-  }
-#endif
-
-  /*
-  **  PRAGMA [schema.]incremental_vacuum(N)
-  **
-  ** Do N steps of incremental vacuuming on a database.
-  */
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  case PragTyp_INCREMENTAL_VACUUM: {
-    int iLimit, addr;
-    if( zRight==0 || !tdsqlite3GetInt32(zRight, &iLimit) || iLimit<=0 ){
-      iLimit = 0x7fffffff;
-    }
-    tdsqlite3BeginWriteOperation(pParse, 0, iDb);
-    tdsqlite3VdbeAddOp2(v, OP_Integer, iLimit, 1);
-    addr = tdsqlite3VdbeAddOp1(v, OP_IncrVacuum, iDb); VdbeCoverage(v);
-    tdsqlite3VdbeAddOp1(v, OP_ResultRow, 1);
-    tdsqlite3VdbeAddOp2(v, OP_AddImm, 1, -1);
-    tdsqlite3VdbeAddOp2(v, OP_IfPos, 1, addr); VdbeCoverage(v);
-    tdsqlite3VdbeJumpHere(v, addr);
-    break;
-  }
-#endif
-
-#ifndef SQLITE_OMIT_PAGER_PRAGMAS
-  /*
-  **  PRAGMA [schema.]cache_size
-  **  PRAGMA [schema.]cache_size=N
-  **
-  ** The first form reports the current local setting for the
-  ** page cache size. The second form sets the local
-  ** page cache size value.  If N is positive then that is the
-  ** number of pages in the cache.  If N is negative, then the
-  ** number of pages is adjusted so that the cache uses -N kibibytes
-  ** of memory.
-  */
-  case PragTyp_CACHE_SIZE: {
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    if( !zRight ){
-      returnSingleInt(v, pDb->pSchema->cache_size);
-    }else{
-      int size = tdsqlite3Atoi(zRight);
-      pDb->pSchema->cache_size = size;
-      tdsqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
-    }
-    break;
-  }
-
-  /*
-  **  PRAGMA [schema.]cache_spill
-  **  PRAGMA cache_spill=BOOLEAN
-  **  PRAGMA [schema.]cache_spill=N
-  **
-  ** The first form reports the current local setting for the
-  ** page cache spill size. The second form turns cache spill on
-  ** or off.  When turnning cache spill on, the size is set to the
-  ** current cache_size.  The third form sets a spill size that
-  ** may be different form the cache size.
-  ** If N is positive then that is the
-  ** number of pages in the cache.  If N is negative, then the
-  ** number of pages is adjusted so that the cache uses -N kibibytes
-  ** of memory.
-  **
-  ** If the number of cache_spill pages is less then the number of
-  ** cache_size pages, no spilling occurs until the page count exceeds
-  ** the number of cache_size pages.
-  **
-  ** The cache_spill=BOOLEAN setting applies to all attached schemas,
-  ** not just the schema specified.
-  */
-  case PragTyp_CACHE_SPILL: {
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    if( !zRight ){
-      returnSingleInt(v,
-         (db->flags & SQLITE_CacheSpill)==0 ? 0 : 
-            tdsqlite3BtreeSetSpillSize(pDb->pBt,0));
-    }else{
-      int size = 1;
-      if( tdsqlite3GetInt32(zRight, &size) ){
-        tdsqlite3BtreeSetSpillSize(pDb->pBt, size);
-      }
-      if( tdsqlite3GetBoolean(zRight, size!=0) ){
-        db->flags |= SQLITE_CacheSpill;
-      }else{
-        db->flags &= ~(u64)SQLITE_CacheSpill;
-      }
-      setAllPagerFlags(db);
-    }
-    break;
-  }
-
-  /*
-  **  PRAGMA [schema.]mmap_size(N)
-  **
-  ** Used to set mapping size limit. The mapping size limit is
-  ** used to limit the aggregate size of all memory mapped regions of the
-  ** database file. If this parameter is set to zero, then memory mapping
-  ** is not used at all.  If N is negative, then the default memory map
-  ** limit determined by tdsqlite3_config(SQLITE_CONFIG_MMAP_SIZE) is set.
-  ** The parameter N is measured in bytes.
-  **
-  ** This value is advisory.  The underlying VFS is free to memory map
-  ** as little or as much as it wants.  Except, if N is set to 0 then the
-  ** upper layers will never invoke the xFetch interfaces to the VFS.
-  */
-  case PragTyp_MMAP_SIZE: {
-    tdsqlite3_int64 sz;
-#if SQLITE_MAX_MMAP_SIZE>0
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    if( zRight ){
-      int ii;
-      tdsqlite3DecOrHexToI64(zRight, &sz);
-      if( sz<0 ) sz = tdsqlite3GlobalConfig.szMmap;
-      if( pId2->n==0 ) db->szMmap = sz;
-      for(ii=db->nDb-1; ii>=0; ii--){
-        if( db->aDb[ii].pBt && (ii==iDb || pId2->n==0) ){
-          tdsqlite3BtreeSetMmapLimit(db->aDb[ii].pBt, sz);
-        }
-      }
-    }
-    sz = -1;
-    rc = tdsqlite3_file_control(db, zDb, SQLITE_FCNTL_MMAP_SIZE, &sz);
-#else
-    sz = 0;
-    rc = SQLITE_OK;
-#endif
-    if( rc==SQLITE_OK ){
-      returnSingleInt(v, sz);
-    }else if( rc!=SQLITE_NOTFOUND ){
-      pParse->nErr++;
-      pParse->rc = rc;
-    }
-    break;
-  }
-
-  /*
-  **   PRAGMA temp_store
-  **   PRAGMA temp_store = "default"|"memory"|"file"
-  **
-  ** Return or set the local value of the temp_store flag.  Changing
-  ** the local value does not make changes to the disk file and the default
-  ** value will be restored the next time the database is opened.
-  **
-  ** Note that it is possible for the library compile-time options to
-  ** override this setting
-  */
-  case PragTyp_TEMP_STORE: {
-    if( !zRight ){
-      returnSingleInt(v, db->temp_store);
-    }else{
-      changeTempStorage(pParse, zRight);
-    }
-    break;
-  }
-
-  /*
-  **   PRAGMA temp_store_directory
-  **   PRAGMA temp_store_directory = ""|"directory_name"
-  **
-  ** Return or set the local value of the temp_store_directory flag.  Changing
-  ** the value sets a specific directory to be used for temporary files.
-  ** Setting to a null string reverts to the default temporary directory search.
-  ** If temporary directory is changed, then invalidateTempStorage.
-  **
-  */
-  case PragTyp_TEMP_STORE_DIRECTORY: {
-    if( !zRight ){
-      returnSingleText(v, tdsqlite3_temp_directory);
-    }else{
-#ifndef SQLITE_OMIT_WSD
-      if( zRight[0] ){
-        int res;
-        rc = tdsqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
-        if( rc!=SQLITE_OK || res==0 ){
-          tdsqlite3ErrorMsg(pParse, "not a writable directory");
-          goto pragma_out;
-        }
-      }
-      if( SQLITE_TEMP_STORE==0
-       || (SQLITE_TEMP_STORE==1 && db->temp_store<=1)
-       || (SQLITE_TEMP_STORE==2 && db->temp_store==1)
-      ){
-        invalidateTempStorage(pParse);
-      }
-      tdsqlite3_free(tdsqlite3_temp_directory);
-      if( zRight[0] ){
-        tdsqlite3_temp_directory = tdsqlite3_mprintf("%s", zRight);
-      }else{
-        tdsqlite3_temp_directory = 0;
-      }
-#endif /* SQLITE_OMIT_WSD */
-    }
-    break;
-  }
-
-#if SQLITE_OS_WIN
-  /*
-  **   PRAGMA data_store_directory
-  **   PRAGMA data_store_directory = ""|"directory_name"
-  **
-  ** Return or set the local value of the data_store_directory flag.  Changing
-  ** the value sets a specific directory to be used for database files that
-  ** were specified with a relative pathname.  Setting to a null string reverts
-  ** to the default database directory, which for database files specified with
-  ** a relative path will probably be based on the current directory for the
-  ** process.  Database file specified with an absolute path are not impacted
-  ** by this setting, regardless of its value.
-  **
-  */
-  case PragTyp_DATA_STORE_DIRECTORY: {
-    if( !zRight ){
-      returnSingleText(v, tdsqlite3_data_directory);
-    }else{
-#ifndef SQLITE_OMIT_WSD
-      if( zRight[0] ){
-        int res;
-        rc = tdsqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
-        if( rc!=SQLITE_OK || res==0 ){
-          tdsqlite3ErrorMsg(pParse, "not a writable directory");
-          goto pragma_out;
-        }
-      }
-      tdsqlite3_free(tdsqlite3_data_directory);
-      if( zRight[0] ){
-        tdsqlite3_data_directory = tdsqlite3_mprintf("%s", zRight);
-      }else{
-        tdsqlite3_data_directory = 0;
-      }
-#endif /* SQLITE_OMIT_WSD */
-    }
-    break;
-  }
-#endif
-
-#if SQLITE_ENABLE_LOCKING_STYLE
-  /*
-  **   PRAGMA [schema.]lock_proxy_file
-  **   PRAGMA [schema.]lock_proxy_file = ":auto:"|"lock_file_path"
-  **
-  ** Return or set the value of the lock_proxy_file flag.  Changing
-  ** the value sets a specific file to be used for database access locks.
-  **
-  */
-  case PragTyp_LOCK_PROXY_FILE: {
-    if( !zRight ){
-      Pager *pPager = tdsqlite3BtreePager(pDb->pBt);
-      char *proxy_file_path = NULL;
-      tdsqlite3_file *pFile = tdsqlite3PagerFile(pPager);
-      tdsqlite3OsFileControlHint(pFile, SQLITE_GET_LOCKPROXYFILE, 
-                           &proxy_file_path);
-      returnSingleText(v, proxy_file_path);
-    }else{
-      Pager *pPager = tdsqlite3BtreePager(pDb->pBt);
-      tdsqlite3_file *pFile = tdsqlite3PagerFile(pPager);
-      int res;
-      if( zRight[0] ){
-        res=tdsqlite3OsFileControl(pFile, SQLITE_SET_LOCKPROXYFILE, 
-                                     zRight);
-      } else {
-        res=tdsqlite3OsFileControl(pFile, SQLITE_SET_LOCKPROXYFILE, 
-                                     NULL);
-      }
-      if( res!=SQLITE_OK ){
-        tdsqlite3ErrorMsg(pParse, "failed to set lock proxy file");
-        goto pragma_out;
-      }
-    }
-    break;
-  }
-#endif /* SQLITE_ENABLE_LOCKING_STYLE */      
-    
-  /*
-  **   PRAGMA [schema.]synchronous
-  **   PRAGMA [schema.]synchronous=OFF|ON|NORMAL|FULL|EXTRA
-  **
-  ** Return or set the local value of the synchronous flag.  Changing
-  ** the local value does not make changes to the disk file and the
-  ** default value will be restored the next time the database is
-  ** opened.
-  */
-  case PragTyp_SYNCHRONOUS: {
-    if( !zRight ){
-      returnSingleInt(v, pDb->safety_level-1);
-    }else{
-      if( !db->autoCommit ){
-        tdsqlite3ErrorMsg(pParse, 
-            "Safety level may not be changed inside a transaction");
-      }else if( iDb!=1 ){
-        int iLevel = (getSafetyLevel(zRight,0,1)+1) & PAGER_SYNCHRONOUS_MASK;
-        if( iLevel==0 ) iLevel = 1;
-        pDb->safety_level = iLevel;
-        pDb->bSyncSet = 1;
-        setAllPagerFlags(db);
-      }
-    }
-    break;
-  }
-#endif /* SQLITE_OMIT_PAGER_PRAGMAS */
-
-#ifndef SQLITE_OMIT_FLAG_PRAGMAS
-  case PragTyp_FLAG: {
-    if( zRight==0 ){
-      setPragmaResultColumnNames(v, pPragma);
-      returnSingleInt(v, (db->flags & pPragma->iArg)!=0 );
-    }else{
-      u64 mask = pPragma->iArg;    /* Mask of bits to set or clear. */
-      if( db->autoCommit==0 ){
-        /* Foreign key support may not be enabled or disabled while not
-        ** in auto-commit mode.  */
-        mask &= ~(SQLITE_ForeignKeys);
-      }
-#if SQLITE_USER_AUTHENTICATION
-      if( db->auth.authLevel==UAUTH_User ){
-        /* Do not allow non-admin users to modify the schema arbitrarily */
-        mask &= ~(SQLITE_WriteSchema);
-      }
-#endif
-
-      if( tdsqlite3GetBoolean(zRight, 0) ){
-        db->flags |= mask;
-      }else{
-        db->flags &= ~mask;
-        if( mask==SQLITE_DeferFKs ) db->nDeferredImmCons = 0;
-      }
-
-      /* Many of the flag-pragmas modify the code generated by the SQL 
-      ** compiler (eg. count_changes). So add an opcode to expire all
-      ** compiled SQL statements after modifying a pragma value.
-      */
-      tdsqlite3VdbeAddOp0(v, OP_Expire);
-      setAllPagerFlags(db);
-    }
-    break;
-  }
-#endif /* SQLITE_OMIT_FLAG_PRAGMAS */
-
-#ifndef SQLITE_OMIT_SCHEMA_PRAGMAS
-  /*
-  **   PRAGMA table_info(<table>)
-  **
-  ** Return a single row for each column of the named table. The columns of
-  ** the returned data set are:
-  **
-  ** cid:        Column id (numbered from left to right, starting at 0)
-  ** name:       Column name
-  ** type:       Column declaration type.
-  ** notnull:    True if 'NOT NULL' is part of column declaration
-  ** dflt_value: The default value for the column, if any.
-  ** pk:         Non-zero for PK fields.
-  */
-  case PragTyp_TABLE_INFO: if( zRight ){
-    Table *pTab;
-    pTab = tdsqlite3LocateTable(pParse, LOCATE_NOERR, zRight, zDb);
-    if( pTab ){
-      int iTabDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-      int i, k;
-      int nHidden = 0;
-      Column *pCol;
-      Index *pPk = tdsqlite3PrimaryKeyIndex(pTab);
-      pParse->nMem = 7;
-      tdsqlite3CodeVerifySchema(pParse, iTabDb);
-      tdsqlite3ViewGetColumnNames(pParse, pTab);
-      for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
-        int isHidden = 0;
-        if( pCol->colFlags & COLFLAG_NOINSERT ){
-          if( pPragma->iArg==0 ){
-            nHidden++;
-            continue;
-          }
-          if( pCol->colFlags & COLFLAG_VIRTUAL ){
-            isHidden = 2;  /* GENERATED ALWAYS AS ... VIRTUAL */
-          }else if( pCol->colFlags & COLFLAG_STORED ){
-            isHidden = 3;  /* GENERATED ALWAYS AS ... STORED */
-          }else{ assert( pCol->colFlags & COLFLAG_HIDDEN );
-            isHidden = 1;  /* HIDDEN */
-          }
-        }
-        if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){
-          k = 0;
-        }else if( pPk==0 ){
-          k = 1;
-        }else{
-          for(k=1; k<=pTab->nCol && pPk->aiColumn[k-1]!=i; k++){}
-        }
-        assert( pCol->pDflt==0 || pCol->pDflt->op==TK_SPAN || isHidden>=2 );
-        tdsqlite3VdbeMultiLoad(v, 1, pPragma->iArg ? "issisii" : "issisi",
-               i-nHidden,
-               pCol->zName,
-               tdsqlite3ColumnType(pCol,""),
-               pCol->notNull ? 1 : 0,
-               pCol->pDflt && isHidden<2 ? pCol->pDflt->u.zToken : 0,
-               k,
-               isHidden);
-      }
-    }
-  }
-  break;
-
-#ifdef SQLITE_DEBUG
-  case PragTyp_STATS: {
-    Index *pIdx;
-    HashElem *i;
-    pParse->nMem = 5;
-    tdsqlite3CodeVerifySchema(pParse, iDb);
-    for(i=sqliteHashFirst(&pDb->pSchema->tblHash); i; i=sqliteHashNext(i)){
-      Table *pTab = sqliteHashData(i);
-      tdsqlite3VdbeMultiLoad(v, 1, "ssiii",
-           pTab->zName,
-           0,
-           pTab->szTabRow,
-           pTab->nRowLogEst,
-           pTab->tabFlags);
-      for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-        tdsqlite3VdbeMultiLoad(v, 2, "siiiX",
-           pIdx->zName,
-           pIdx->szIdxRow,
-           pIdx->aiRowLogEst[0],
-           pIdx->hasStat1);
-        tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 5);
-      }
-    }
-  }
-  break;
-#endif
-
-  case PragTyp_INDEX_INFO: if( zRight ){
-    Index *pIdx;
-    Table *pTab;
-    pIdx = tdsqlite3FindIndex(db, zRight, zDb);
-    if( pIdx==0 ){
-      /* If there is no index named zRight, check to see if there is a
-      ** WITHOUT ROWID table named zRight, and if there is, show the
-      ** structure of the PRIMARY KEY index for that table. */
-      pTab = tdsqlite3LocateTable(pParse, LOCATE_NOERR, zRight, zDb);
-      if( pTab && !HasRowid(pTab) ){
-        pIdx = tdsqlite3PrimaryKeyIndex(pTab);
-      }
-    }
-    if( pIdx ){
-      int iIdxDb = tdsqlite3SchemaToIndex(db, pIdx->pSchema);
-      int i;
-      int mx;
-      if( pPragma->iArg ){
-        /* PRAGMA index_xinfo (newer version with more rows and columns) */
-        mx = pIdx->nColumn;
-        pParse->nMem = 6;
-      }else{
-        /* PRAGMA index_info (legacy version) */
-        mx = pIdx->nKeyCol;
-        pParse->nMem = 3;
-      }
-      pTab = pIdx->pTable;
-      tdsqlite3CodeVerifySchema(pParse, iIdxDb);
-      assert( pParse->nMem<=pPragma->nPragCName );
-      for(i=0; i<mx; i++){
-        i16 cnum = pIdx->aiColumn[i];
-        tdsqlite3VdbeMultiLoad(v, 1, "iisX", i, cnum,
-                             cnum<0 ? 0 : pTab->aCol[cnum].zName);
-        if( pPragma->iArg ){
-          tdsqlite3VdbeMultiLoad(v, 4, "isiX",
-            pIdx->aSortOrder[i],
-            pIdx->azColl[i],
-            i<pIdx->nKeyCol);
-        }
-        tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, pParse->nMem);
-      }
-    }
-  }
-  break;
-
-  case PragTyp_INDEX_LIST: if( zRight ){
-    Index *pIdx;
-    Table *pTab;
-    int i;
-    pTab = tdsqlite3FindTable(db, zRight, zDb);
-    if( pTab ){
-      int iTabDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-      pParse->nMem = 5;
-      tdsqlite3CodeVerifySchema(pParse, iTabDb);
-      for(pIdx=pTab->pIndex, i=0; pIdx; pIdx=pIdx->pNext, i++){
-        const char *azOrigin[] = { "c", "u", "pk" };
-        tdsqlite3VdbeMultiLoad(v, 1, "isisi",
-           i,
-           pIdx->zName,
-           IsUniqueIndex(pIdx),
-           azOrigin[pIdx->idxType],
-           pIdx->pPartIdxWhere!=0);
-      }
-    }
-  }
-  break;
-
-  case PragTyp_DATABASE_LIST: {
-    int i;
-    pParse->nMem = 3;
-    for(i=0; i<db->nDb; i++){
-      if( db->aDb[i].pBt==0 ) continue;
-      assert( db->aDb[i].zDbSName!=0 );
-      tdsqlite3VdbeMultiLoad(v, 1, "iss",
-         i,
-         db->aDb[i].zDbSName,
-         tdsqlite3BtreeGetFilename(db->aDb[i].pBt));
-    }
-  }
-  break;
-
-  case PragTyp_COLLATION_LIST: {
-    int i = 0;
-    HashElem *p;
-    pParse->nMem = 2;
-    for(p=sqliteHashFirst(&db->aCollSeq); p; p=sqliteHashNext(p)){
-      CollSeq *pColl = (CollSeq *)sqliteHashData(p);
-      tdsqlite3VdbeMultiLoad(v, 1, "is", i++, pColl->zName);
-    }
-  }
-  break;
-
-#ifndef SQLITE_OMIT_INTROSPECTION_PRAGMAS
-  case PragTyp_FUNCTION_LIST: {
-    int i;
-    HashElem *j;
-    FuncDef *p;
-    int showInternFunc = (db->mDbFlags & DBFLAG_InternalFunc)!=0;
-    pParse->nMem = 6;
-    for(i=0; i<SQLITE_FUNC_HASH_SZ; i++){
-      for(p=tdsqlite3BuiltinFunctions.a[i]; p; p=p->u.pHash ){
-        pragmaFunclistLine(v, p, 1, showInternFunc);
-      }
-    }
-    for(j=sqliteHashFirst(&db->aFunc); j; j=sqliteHashNext(j)){
-      p = (FuncDef*)sqliteHashData(j);
-      pragmaFunclistLine(v, p, 0, showInternFunc);
-    }
-  }
-  break;
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  case PragTyp_MODULE_LIST: {
-    HashElem *j;
-    pParse->nMem = 1;
-    for(j=sqliteHashFirst(&db->aModule); j; j=sqliteHashNext(j)){
-      Module *pMod = (Module*)sqliteHashData(j);
-      tdsqlite3VdbeMultiLoad(v, 1, "s", pMod->zName);
-    }
-  }
-  break;
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-  case PragTyp_PRAGMA_LIST: {
-    int i;
-    for(i=0; i<ArraySize(aPragmaName); i++){
-      tdsqlite3VdbeMultiLoad(v, 1, "s", aPragmaName[i].zName);
-    }
-  }
-  break;
-#endif /* SQLITE_INTROSPECTION_PRAGMAS */
-
-#endif /* SQLITE_OMIT_SCHEMA_PRAGMAS */
-
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-  case PragTyp_FOREIGN_KEY_LIST: if( zRight ){
-    FKey *pFK;
-    Table *pTab;
-    pTab = tdsqlite3FindTable(db, zRight, zDb);
-    if( pTab ){
-      pFK = pTab->pFKey;
-      if( pFK ){
-        int iTabDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-        int i = 0; 
-        pParse->nMem = 8;
-        tdsqlite3CodeVerifySchema(pParse, iTabDb);
-        while(pFK){
-          int j;
-          for(j=0; j<pFK->nCol; j++){
-            tdsqlite3VdbeMultiLoad(v, 1, "iissssss",
-                   i,
-                   j,
-                   pFK->zTo,
-                   pTab->aCol[pFK->aCol[j].iFrom].zName,
-                   pFK->aCol[j].zCol,
-                   actionName(pFK->aAction[1]),  /* ON UPDATE */
-                   actionName(pFK->aAction[0]),  /* ON DELETE */
-                   "NONE");
-          }
-          ++i;
-          pFK = pFK->pNextFrom;
-        }
-      }
-    }
-  }
-  break;
-#endif /* !defined(SQLITE_OMIT_FOREIGN_KEY) */
-
-#ifndef SQLITE_OMIT_FOREIGN_KEY
-#ifndef SQLITE_OMIT_TRIGGER
-  case PragTyp_FOREIGN_KEY_CHECK: {
-    FKey *pFK;             /* A foreign key constraint */
-    Table *pTab;           /* Child table contain "REFERENCES" keyword */
-    Table *pParent;        /* Parent table that child points to */
-    Index *pIdx;           /* Index in the parent table */
-    int i;                 /* Loop counter:  Foreign key number for pTab */
-    int j;                 /* Loop counter:  Field of the foreign key */
-    HashElem *k;           /* Loop counter:  Next table in schema */
-    int x;                 /* result variable */
-    int regResult;         /* 3 registers to hold a result row */
-    int regKey;            /* Register to hold key for checking the FK */
-    int regRow;            /* Registers to hold a row from pTab */
-    int addrTop;           /* Top of a loop checking foreign keys */
-    int addrOk;            /* Jump here if the key is OK */
-    int *aiCols;           /* child to parent column mapping */
-
-    regResult = pParse->nMem+1;
-    pParse->nMem += 4;
-    regKey = ++pParse->nMem;
-    regRow = ++pParse->nMem;
-    k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash);
-    while( k ){
-      int iTabDb;
-      if( zRight ){
-        pTab = tdsqlite3LocateTable(pParse, 0, zRight, zDb);
-        k = 0;
-      }else{
-        pTab = (Table*)sqliteHashData(k);
-        k = sqliteHashNext(k);
-      }
-      if( pTab==0 || pTab->pFKey==0 ) continue;
-      iTabDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-      tdsqlite3CodeVerifySchema(pParse, iTabDb);
-      tdsqlite3TableLock(pParse, iTabDb, pTab->tnum, 0, pTab->zName);
-      if( pTab->nCol+regRow>pParse->nMem ) pParse->nMem = pTab->nCol + regRow;
-      tdsqlite3OpenTable(pParse, 0, iTabDb, pTab, OP_OpenRead);
-      tdsqlite3VdbeLoadString(v, regResult, pTab->zName);
-      for(i=1, pFK=pTab->pFKey; pFK; i++, pFK=pFK->pNextFrom){
-        pParent = tdsqlite3FindTable(db, pFK->zTo, zDb);
-        if( pParent==0 ) continue;
-        pIdx = 0;
-        tdsqlite3TableLock(pParse, iTabDb, pParent->tnum, 0, pParent->zName);
-        x = tdsqlite3FkLocateIndex(pParse, pParent, pFK, &pIdx, 0);
-        if( x==0 ){
-          if( pIdx==0 ){
-            tdsqlite3OpenTable(pParse, i, iTabDb, pParent, OP_OpenRead);
-          }else{
-            tdsqlite3VdbeAddOp3(v, OP_OpenRead, i, pIdx->tnum, iTabDb);
-            tdsqlite3VdbeSetP4KeyInfo(pParse, pIdx);
-          }
-        }else{
-          k = 0;
-          break;
-        }
-      }
-      assert( pParse->nErr>0 || pFK==0 );
-      if( pFK ) break;
-      if( pParse->nTab<i ) pParse->nTab = i;
-      addrTop = tdsqlite3VdbeAddOp1(v, OP_Rewind, 0); VdbeCoverage(v);
-      for(i=1, pFK=pTab->pFKey; pFK; i++, pFK=pFK->pNextFrom){
-        pParent = tdsqlite3FindTable(db, pFK->zTo, zDb);
-        pIdx = 0;
-        aiCols = 0;
-        if( pParent ){
-          x = tdsqlite3FkLocateIndex(pParse, pParent, pFK, &pIdx, &aiCols);
-          assert( x==0 );
-        }
-        addrOk = tdsqlite3VdbeMakeLabel(pParse);
-
-        /* Generate code to read the child key values into registers
-        ** regRow..regRow+n. If any of the child key values are NULL, this 
-        ** row cannot cause an FK violation. Jump directly to addrOk in 
-        ** this case. */
-        for(j=0; j<pFK->nCol; j++){
-          int iCol = aiCols ? aiCols[j] : pFK->aCol[j].iFrom;
-          tdsqlite3ExprCodeGetColumnOfTable(v, pTab, 0, iCol, regRow+j);
-          tdsqlite3VdbeAddOp2(v, OP_IsNull, regRow+j, addrOk); VdbeCoverage(v);
-        }
-
-        /* Generate code to query the parent index for a matching parent
-        ** key. If a match is found, jump to addrOk. */
-        if( pIdx ){
-          tdsqlite3VdbeAddOp4(v, OP_MakeRecord, regRow, pFK->nCol, regKey,
-              tdsqlite3IndexAffinityStr(db,pIdx), pFK->nCol);
-          tdsqlite3VdbeAddOp4Int(v, OP_Found, i, addrOk, regKey, 0);
-          VdbeCoverage(v);
-        }else if( pParent ){
-          int jmp = tdsqlite3VdbeCurrentAddr(v)+2;
-          tdsqlite3VdbeAddOp3(v, OP_SeekRowid, i, jmp, regRow); VdbeCoverage(v);
-          tdsqlite3VdbeGoto(v, addrOk);
-          assert( pFK->nCol==1 );
-        }
-
-        /* Generate code to report an FK violation to the caller. */
-        if( HasRowid(pTab) ){
-          tdsqlite3VdbeAddOp2(v, OP_Rowid, 0, regResult+1);
-        }else{
-          tdsqlite3VdbeAddOp2(v, OP_Null, 0, regResult+1);
-        }
-        tdsqlite3VdbeMultiLoad(v, regResult+2, "siX", pFK->zTo, i-1);
-        tdsqlite3VdbeAddOp2(v, OP_ResultRow, regResult, 4);
-        tdsqlite3VdbeResolveLabel(v, addrOk);
-        tdsqlite3DbFree(db, aiCols);
-      }
-      tdsqlite3VdbeAddOp2(v, OP_Next, 0, addrTop+1); VdbeCoverage(v);
-      tdsqlite3VdbeJumpHere(v, addrTop);
-    }
-  }
-  break;
-#endif /* !defined(SQLITE_OMIT_TRIGGER) */
-#endif /* !defined(SQLITE_OMIT_FOREIGN_KEY) */
-
-#ifndef SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA
-  /* Reinstall the LIKE and GLOB functions.  The variant of LIKE
-  ** used will be case sensitive or not depending on the RHS.
-  */
-  case PragTyp_CASE_SENSITIVE_LIKE: {
-    if( zRight ){
-      tdsqlite3RegisterLikeFunctions(db, tdsqlite3GetBoolean(zRight, 0));
-    }
-  }
-  break;
-#endif /* SQLITE_OMIT_CASE_SENSITIVE_LIKE_PRAGMA */
-
-#ifndef SQLITE_INTEGRITY_CHECK_ERROR_MAX
-# define SQLITE_INTEGRITY_CHECK_ERROR_MAX 100
-#endif
-
-#ifndef SQLITE_OMIT_INTEGRITY_CHECK
-  /*    PRAGMA integrity_check
-  **    PRAGMA integrity_check(N)
-  **    PRAGMA quick_check
-  **    PRAGMA quick_check(N)
-  **
-  ** Verify the integrity of the database.
-  **
-  ** The "quick_check" is reduced version of 
-  ** integrity_check designed to detect most database corruption
-  ** without the overhead of cross-checking indexes.  Quick_check
-  ** is linear time wherease integrity_check is O(NlogN).
-  */
-  case PragTyp_INTEGRITY_CHECK: {
-    int i, j, addr, mxErr;
-
-    int isQuick = (tdsqlite3Tolower(zLeft[0])=='q');
-
-    /* If the PRAGMA command was of the form "PRAGMA <db>.integrity_check",
-    ** then iDb is set to the index of the database identified by <db>.
-    ** In this case, the integrity of database iDb only is verified by
-    ** the VDBE created below.
-    **
-    ** Otherwise, if the command was simply "PRAGMA integrity_check" (or
-    ** "PRAGMA quick_check"), then iDb is set to 0. In this case, set iDb
-    ** to -1 here, to indicate that the VDBE should verify the integrity
-    ** of all attached databases.  */
-    assert( iDb>=0 );
-    assert( iDb==0 || pId2->z );
-    if( pId2->z==0 ) iDb = -1;
-
-    /* Initialize the VDBE program */
-    pParse->nMem = 6;
-
-    /* Set the maximum error count */
-    mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
-    if( zRight ){
-      tdsqlite3GetInt32(zRight, &mxErr);
-      if( mxErr<=0 ){
-        mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
-      }
-    }
-    tdsqlite3VdbeAddOp2(v, OP_Integer, mxErr-1, 1); /* reg[1] holds errors left */
-
-    /* Do an integrity check on each database file */
-    for(i=0; i<db->nDb; i++){
-      HashElem *x;     /* For looping over tables in the schema */
-      Hash *pTbls;     /* Set of all tables in the schema */
-      int *aRoot;      /* Array of root page numbers of all btrees */
-      int cnt = 0;     /* Number of entries in aRoot[] */
-      int mxIdx = 0;   /* Maximum number of indexes for any table */
-
-      if( OMIT_TEMPDB && i==1 ) continue;
-      if( iDb>=0 && i!=iDb ) continue;
-
-      tdsqlite3CodeVerifySchema(pParse, i);
-
-      /* Do an integrity check of the B-Tree
-      **
-      ** Begin by finding the root pages numbers
-      ** for all tables and indices in the database.
-      */
-      assert( tdsqlite3SchemaMutexHeld(db, i, 0) );
-      pTbls = &db->aDb[i].pSchema->tblHash;
-      for(cnt=0, x=sqliteHashFirst(pTbls); x; x=sqliteHashNext(x)){
-        Table *pTab = sqliteHashData(x);  /* Current table */
-        Index *pIdx;                      /* An index on pTab */
-        int nIdx;                         /* Number of indexes on pTab */
-        if( HasRowid(pTab) ) cnt++;
-        for(nIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nIdx++){ cnt++; }
-        if( nIdx>mxIdx ) mxIdx = nIdx;
-      }
-      aRoot = tdsqlite3DbMallocRawNN(db, sizeof(int)*(cnt+1));
-      if( aRoot==0 ) break;
-      for(cnt=0, x=sqliteHashFirst(pTbls); x; x=sqliteHashNext(x)){
-        Table *pTab = sqliteHashData(x);
-        Index *pIdx;
-        if( HasRowid(pTab) ) aRoot[++cnt] = pTab->tnum;
-        for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-          aRoot[++cnt] = pIdx->tnum;
-        }
-      }
-      aRoot[0] = cnt;
-
-      /* Make sure sufficient number of registers have been allocated */
-      pParse->nMem = MAX( pParse->nMem, 8+mxIdx );
-      tdsqlite3ClearTempRegCache(pParse);
-
-      /* Do the b-tree integrity checks */
-      tdsqlite3VdbeAddOp4(v, OP_IntegrityCk, 2, cnt, 1, (char*)aRoot,P4_INTARRAY);
-      tdsqlite3VdbeChangeP5(v, (u8)i);
-      addr = tdsqlite3VdbeAddOp1(v, OP_IsNull, 2); VdbeCoverage(v);
-      tdsqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0,
-         tdsqlite3MPrintf(db, "*** in database %s ***\n", db->aDb[i].zDbSName),
-         P4_DYNAMIC);
-      tdsqlite3VdbeAddOp3(v, OP_Concat, 2, 3, 3);
-      integrityCheckResultRow(v);
-      tdsqlite3VdbeJumpHere(v, addr);
-
-      /* Make sure all the indices are constructed correctly.
-      */
-      for(x=sqliteHashFirst(pTbls); x; x=sqliteHashNext(x)){
-        Table *pTab = sqliteHashData(x);
-        Index *pIdx, *pPk;
-        Index *pPrior = 0;
-        int loopTop;
-        int iDataCur, iIdxCur;
-        int r1 = -1;
-
-        if( pTab->tnum<1 ) continue;  /* Skip VIEWs or VIRTUAL TABLEs */
-        pPk = HasRowid(pTab) ? 0 : tdsqlite3PrimaryKeyIndex(pTab);
-        tdsqlite3OpenTableAndIndices(pParse, pTab, OP_OpenRead, 0,
-                                   1, 0, &iDataCur, &iIdxCur);
-        /* reg[7] counts the number of entries in the table.
-        ** reg[8+i] counts the number of entries in the i-th index 
-        */
-        tdsqlite3VdbeAddOp2(v, OP_Integer, 0, 7);
-        for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
-          tdsqlite3VdbeAddOp2(v, OP_Integer, 0, 8+j); /* index entries counter */
-        }
-        assert( pParse->nMem>=8+j );
-        assert( tdsqlite3NoTempsInRange(pParse,1,7+j) );
-        tdsqlite3VdbeAddOp2(v, OP_Rewind, iDataCur, 0); VdbeCoverage(v);
-        loopTop = tdsqlite3VdbeAddOp2(v, OP_AddImm, 7, 1);
-        if( !isQuick ){
-          /* Sanity check on record header decoding */
-          tdsqlite3VdbeAddOp3(v, OP_Column, iDataCur, pTab->nNVCol-1,3);
-          tdsqlite3VdbeChangeP5(v, OPFLAG_TYPEOFARG);
-        }
-        /* Verify that all NOT NULL columns really are NOT NULL */
-        for(j=0; j<pTab->nCol; j++){
-          char *zErr;
-          int jmp2;
-          if( j==pTab->iPKey ) continue;
-          if( pTab->aCol[j].notNull==0 ) continue;
-          tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, j, 3);
-          if( tdsqlite3VdbeGetOp(v,-1)->opcode==OP_Column ){
-            tdsqlite3VdbeChangeP5(v, OPFLAG_TYPEOFARG);
-          }
-          jmp2 = tdsqlite3VdbeAddOp1(v, OP_NotNull, 3); VdbeCoverage(v);
-          zErr = tdsqlite3MPrintf(db, "NULL value in %s.%s", pTab->zName,
-                              pTab->aCol[j].zName);
-          tdsqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, zErr, P4_DYNAMIC);
-          integrityCheckResultRow(v);
-          tdsqlite3VdbeJumpHere(v, jmp2);
-        }
-        /* Verify CHECK constraints */
-        if( pTab->pCheck && (db->flags & SQLITE_IgnoreChecks)==0 ){
-          ExprList *pCheck = tdsqlite3ExprListDup(db, pTab->pCheck, 0);
-          if( db->mallocFailed==0 ){
-            int addrCkFault = tdsqlite3VdbeMakeLabel(pParse);
-            int addrCkOk = tdsqlite3VdbeMakeLabel(pParse);
-            char *zErr;
-            int k;
-            pParse->iSelfTab = iDataCur + 1;
-            for(k=pCheck->nExpr-1; k>0; k--){
-              tdsqlite3ExprIfFalse(pParse, pCheck->a[k].pExpr, addrCkFault, 0);
-            }
-            tdsqlite3ExprIfTrue(pParse, pCheck->a[0].pExpr, addrCkOk, 
-                SQLITE_JUMPIFNULL);
-            tdsqlite3VdbeResolveLabel(v, addrCkFault);
-            pParse->iSelfTab = 0;
-            zErr = tdsqlite3MPrintf(db, "CHECK constraint failed in %s",
-                pTab->zName);
-            tdsqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, zErr, P4_DYNAMIC);
-            integrityCheckResultRow(v);
-            tdsqlite3VdbeResolveLabel(v, addrCkOk);
-          }
-          tdsqlite3ExprListDelete(db, pCheck);
-        }
-        if( !isQuick ){ /* Omit the remaining tests for quick_check */
-          /* Validate index entries for the current row */
-          for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
-            int jmp2, jmp3, jmp4, jmp5;
-            int ckUniq = tdsqlite3VdbeMakeLabel(pParse);
-            if( pPk==pIdx ) continue;
-            r1 = tdsqlite3GenerateIndexKey(pParse, pIdx, iDataCur, 0, 0, &jmp3,
-                                         pPrior, r1);
-            pPrior = pIdx;
-            tdsqlite3VdbeAddOp2(v, OP_AddImm, 8+j, 1);/* increment entry count */
-            /* Verify that an index entry exists for the current table row */
-            jmp2 = tdsqlite3VdbeAddOp4Int(v, OP_Found, iIdxCur+j, ckUniq, r1,
-                                        pIdx->nColumn); VdbeCoverage(v);
-            tdsqlite3VdbeLoadString(v, 3, "row ");
-            tdsqlite3VdbeAddOp3(v, OP_Concat, 7, 3, 3);
-            tdsqlite3VdbeLoadString(v, 4, " missing from index ");
-            tdsqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 3);
-            jmp5 = tdsqlite3VdbeLoadString(v, 4, pIdx->zName);
-            tdsqlite3VdbeAddOp3(v, OP_Concat, 4, 3, 3);
-            jmp4 = integrityCheckResultRow(v);
-            tdsqlite3VdbeJumpHere(v, jmp2);
-            /* For UNIQUE indexes, verify that only one entry exists with the
-            ** current key.  The entry is unique if (1) any column is NULL
-            ** or (2) the next entry has a different key */
-            if( IsUniqueIndex(pIdx) ){
-              int uniqOk = tdsqlite3VdbeMakeLabel(pParse);
-              int jmp6;
-              int kk;
-              for(kk=0; kk<pIdx->nKeyCol; kk++){
-                int iCol = pIdx->aiColumn[kk];
-                assert( iCol!=XN_ROWID && iCol<pTab->nCol );
-                if( iCol>=0 && pTab->aCol[iCol].notNull ) continue;
-                tdsqlite3VdbeAddOp2(v, OP_IsNull, r1+kk, uniqOk);
-                VdbeCoverage(v);
-              }
-              jmp6 = tdsqlite3VdbeAddOp1(v, OP_Next, iIdxCur+j); VdbeCoverage(v);
-              tdsqlite3VdbeGoto(v, uniqOk);
-              tdsqlite3VdbeJumpHere(v, jmp6);
-              tdsqlite3VdbeAddOp4Int(v, OP_IdxGT, iIdxCur+j, uniqOk, r1,
-                                   pIdx->nKeyCol); VdbeCoverage(v);
-              tdsqlite3VdbeLoadString(v, 3, "non-unique entry in index ");
-              tdsqlite3VdbeGoto(v, jmp5);
-              tdsqlite3VdbeResolveLabel(v, uniqOk);
-            }
-            tdsqlite3VdbeJumpHere(v, jmp4);
-            tdsqlite3ResolvePartIdxLabel(pParse, jmp3);
-          }
-        }
-        tdsqlite3VdbeAddOp2(v, OP_Next, iDataCur, loopTop); VdbeCoverage(v);
-        tdsqlite3VdbeJumpHere(v, loopTop-1);
-#ifndef SQLITE_OMIT_BTREECOUNT
-        if( !isQuick ){
-          tdsqlite3VdbeLoadString(v, 2, "wrong # of entries in index ");
-          for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
-            if( pPk==pIdx ) continue;
-            tdsqlite3VdbeAddOp2(v, OP_Count, iIdxCur+j, 3);
-            addr = tdsqlite3VdbeAddOp3(v, OP_Eq, 8+j, 0, 3); VdbeCoverage(v);
-            tdsqlite3VdbeChangeP5(v, SQLITE_NOTNULL);
-            tdsqlite3VdbeLoadString(v, 4, pIdx->zName);
-            tdsqlite3VdbeAddOp3(v, OP_Concat, 4, 2, 3);
-            integrityCheckResultRow(v);
-            tdsqlite3VdbeJumpHere(v, addr);
-          }
-        }
-#endif /* SQLITE_OMIT_BTREECOUNT */
-      } 
-    }
-    {
-      static const int iLn = VDBE_OFFSET_LINENO(2);
-      static const VdbeOpList endCode[] = {
-        { OP_AddImm,      1, 0,        0},    /* 0 */
-        { OP_IfNotZero,   1, 4,        0},    /* 1 */
-        { OP_String8,     0, 3,        0},    /* 2 */
-        { OP_ResultRow,   3, 1,        0},    /* 3 */
-        { OP_Halt,        0, 0,        0},    /* 4 */
-        { OP_String8,     0, 3,        0},    /* 5 */
-        { OP_Goto,        0, 3,        0},    /* 6 */
-      };
-      VdbeOp *aOp;
-
-      aOp = tdsqlite3VdbeAddOpList(v, ArraySize(endCode), endCode, iLn);
-      if( aOp ){
-        aOp[0].p2 = 1-mxErr;
-        aOp[2].p4type = P4_STATIC;
-        aOp[2].p4.z = "ok";
-        aOp[5].p4type = P4_STATIC;
-        aOp[5].p4.z = (char*)tdsqlite3ErrStr(SQLITE_CORRUPT);
-      }
-      tdsqlite3VdbeChangeP3(v, 0, tdsqlite3VdbeCurrentAddr(v)-2);
-    }
-  }
-  break;
-#endif /* SQLITE_OMIT_INTEGRITY_CHECK */
-
-#ifndef SQLITE_OMIT_UTF16
-  /*
-  **   PRAGMA encoding
-  **   PRAGMA encoding = "utf-8"|"utf-16"|"utf-16le"|"utf-16be"
-  **
-  ** In its first form, this pragma returns the encoding of the main
-  ** database. If the database is not initialized, it is initialized now.
-  **
-  ** The second form of this pragma is a no-op if the main database file
-  ** has not already been initialized. In this case it sets the default
-  ** encoding that will be used for the main database file if a new file
-  ** is created. If an existing main database file is opened, then the
-  ** default text encoding for the existing database is used.
-  ** 
-  ** In all cases new databases created using the ATTACH command are
-  ** created to use the same default text encoding as the main database. If
-  ** the main database has not been initialized and/or created when ATTACH
-  ** is executed, this is done before the ATTACH operation.
-  **
-  ** In the second form this pragma sets the text encoding to be used in
-  ** new database files created using this database handle. It is only
-  ** useful if invoked immediately after the main database i
-  */
-  case PragTyp_ENCODING: {
-    static const struct EncName {
-      char *zName;
-      u8 enc;
-    } encnames[] = {
-      { "UTF8",     SQLITE_UTF8        },
-      { "UTF-8",    SQLITE_UTF8        },  /* Must be element [1] */
-      { "UTF-16le", SQLITE_UTF16LE     },  /* Must be element [2] */
-      { "UTF-16be", SQLITE_UTF16BE     },  /* Must be element [3] */
-      { "UTF16le",  SQLITE_UTF16LE     },
-      { "UTF16be",  SQLITE_UTF16BE     },
-      { "UTF-16",   0                  }, /* SQLITE_UTF16NATIVE */
-      { "UTF16",    0                  }, /* SQLITE_UTF16NATIVE */
-      { 0, 0 }
-    };
-    const struct EncName *pEnc;
-    if( !zRight ){    /* "PRAGMA encoding" */
-      if( tdsqlite3ReadSchema(pParse) ) goto pragma_out;
-      assert( encnames[SQLITE_UTF8].enc==SQLITE_UTF8 );
-      assert( encnames[SQLITE_UTF16LE].enc==SQLITE_UTF16LE );
-      assert( encnames[SQLITE_UTF16BE].enc==SQLITE_UTF16BE );
-      returnSingleText(v, encnames[ENC(pParse->db)].zName);
-    }else{                        /* "PRAGMA encoding = XXX" */
-      /* Only change the value of sqlite.enc if the database handle is not
-      ** initialized. If the main database exists, the new sqlite.enc value
-      ** will be overwritten when the schema is next loaded. If it does not
-      ** already exists, it will be created to use the new encoding value.
-      */
-      int canChangeEnc = 1;  /* True if allowed to change the encoding */
-      int i;                 /* For looping over all attached databases */
-      for(i=0; i<db->nDb; i++){
-        if( db->aDb[i].pBt!=0
-         && DbHasProperty(db,i,DB_SchemaLoaded)
-         && !DbHasProperty(db,i,DB_Empty)
-        ){
-          canChangeEnc = 0;
-        }
-      }
-      if( canChangeEnc ){
-        for(pEnc=&encnames[0]; pEnc->zName; pEnc++){
-          if( 0==tdsqlite3StrICmp(zRight, pEnc->zName) ){
-            SCHEMA_ENC(db) = ENC(db) =
-                pEnc->enc ? pEnc->enc : SQLITE_UTF16NATIVE;
-            break;
-          }
-        }
-        if( !pEnc->zName ){
-          tdsqlite3ErrorMsg(pParse, "unsupported encoding: %s", zRight);
-        }
-      }
-    }
-  }
-  break;
-#endif /* SQLITE_OMIT_UTF16 */
-
-#ifndef SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS
-  /*
-  **   PRAGMA [schema.]schema_version
-  **   PRAGMA [schema.]schema_version = <integer>
-  **
-  **   PRAGMA [schema.]user_version
-  **   PRAGMA [schema.]user_version = <integer>
-  **
-  **   PRAGMA [schema.]freelist_count
-  **
-  **   PRAGMA [schema.]data_version
-  **
-  **   PRAGMA [schema.]application_id
-  **   PRAGMA [schema.]application_id = <integer>
-  **
-  ** The pragma's schema_version and user_version are used to set or get
-  ** the value of the schema-version and user-version, respectively. Both
-  ** the schema-version and the user-version are 32-bit signed integers
-  ** stored in the database header.
-  **
-  ** The schema-cookie is usually only manipulated internally by SQLite. It
-  ** is incremented by SQLite whenever the database schema is modified (by
-  ** creating or dropping a table or index). The schema version is used by
-  ** SQLite each time a query is executed to ensure that the internal cache
-  ** of the schema used when compiling the SQL query matches the schema of
-  ** the database against which the compiled query is actually executed.
-  ** Subverting this mechanism by using "PRAGMA schema_version" to modify
-  ** the schema-version is potentially dangerous and may lead to program
-  ** crashes or database corruption. Use with caution!
-  **
-  ** The user-version is not used internally by SQLite. It may be used by
-  ** applications for any purpose.
-  */
-  case PragTyp_HEADER_VALUE: {
-    int iCookie = pPragma->iArg;  /* Which cookie to read or write */
-    tdsqlite3VdbeUsesBtree(v, iDb);
-    if( zRight && (pPragma->mPragFlg & PragFlg_ReadOnly)==0 ){
-      /* Write the specified cookie value */
-      static const VdbeOpList setCookie[] = {
-        { OP_Transaction,    0,  1,  0},    /* 0 */
-        { OP_SetCookie,      0,  0,  0},    /* 1 */
-      };
-      VdbeOp *aOp;
-      tdsqlite3VdbeVerifyNoMallocRequired(v, ArraySize(setCookie));
-      aOp = tdsqlite3VdbeAddOpList(v, ArraySize(setCookie), setCookie, 0);
-      if( ONLY_IF_REALLOC_STRESS(aOp==0) ) break;
-      aOp[0].p1 = iDb;
-      aOp[1].p1 = iDb;
-      aOp[1].p2 = iCookie;
-      aOp[1].p3 = tdsqlite3Atoi(zRight);
-    }else{
-      /* Read the specified cookie value */
-      static const VdbeOpList readCookie[] = {
-        { OP_Transaction,     0,  0,  0},    /* 0 */
-        { OP_ReadCookie,      0,  1,  0},    /* 1 */
-        { OP_ResultRow,       1,  1,  0}
-      };
-      VdbeOp *aOp;
-      tdsqlite3VdbeVerifyNoMallocRequired(v, ArraySize(readCookie));
-      aOp = tdsqlite3VdbeAddOpList(v, ArraySize(readCookie),readCookie,0);
-      if( ONLY_IF_REALLOC_STRESS(aOp==0) ) break;
-      aOp[0].p1 = iDb;
-      aOp[1].p1 = iDb;
-      aOp[1].p3 = iCookie;
-      tdsqlite3VdbeReusable(v);
-    }
-  }
-  break;
-#endif /* SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS */
-
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-  /*
-  **   PRAGMA compile_options
-  **
-  ** Return the names of all compile-time options used in this build,
-  ** one option per row.
-  */
-  case PragTyp_COMPILE_OPTIONS: {
-    int i = 0;
-    const char *zOpt;
-    pParse->nMem = 1;
-    while( (zOpt = tdsqlite3_compileoption_get(i++))!=0 ){
-      tdsqlite3VdbeLoadString(v, 1, zOpt);
-      tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
-    }
-    tdsqlite3VdbeReusable(v);
-  }
-  break;
-#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
-
-#ifndef SQLITE_OMIT_WAL
-  /*
-  **   PRAGMA [schema.]wal_checkpoint = passive|full|restart|truncate
-  **
-  ** Checkpoint the database.
-  */
-  case PragTyp_WAL_CHECKPOINT: {
-    int iBt = (pId2->z?iDb:SQLITE_MAX_ATTACHED);
-    int eMode = SQLITE_CHECKPOINT_PASSIVE;
-    if( zRight ){
-      if( tdsqlite3StrICmp(zRight, "full")==0 ){
-        eMode = SQLITE_CHECKPOINT_FULL;
-      }else if( tdsqlite3StrICmp(zRight, "restart")==0 ){
-        eMode = SQLITE_CHECKPOINT_RESTART;
-      }else if( tdsqlite3StrICmp(zRight, "truncate")==0 ){
-        eMode = SQLITE_CHECKPOINT_TRUNCATE;
-      }
-    }
-    pParse->nMem = 3;
-    tdsqlite3VdbeAddOp3(v, OP_Checkpoint, iBt, eMode, 1);
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
-  }
-  break;
-
-  /*
-  **   PRAGMA wal_autocheckpoint
-  **   PRAGMA wal_autocheckpoint = N
-  **
-  ** Configure a database connection to automatically checkpoint a database
-  ** after accumulating N frames in the log. Or query for the current value
-  ** of N.
-  */
-  case PragTyp_WAL_AUTOCHECKPOINT: {
-    if( zRight ){
-      tdsqlite3_wal_autocheckpoint(db, tdsqlite3Atoi(zRight));
-    }
-    returnSingleInt(v, 
-       db->xWalCallback==tdsqlite3WalDefaultHook ? 
-           SQLITE_PTR_TO_INT(db->pWalArg) : 0);
-  }
-  break;
-#endif
-
-  /*
-  **  PRAGMA shrink_memory
-  **
-  ** IMPLEMENTATION-OF: R-23445-46109 This pragma causes the database
-  ** connection on which it is invoked to free up as much memory as it
-  ** can, by calling tdsqlite3_db_release_memory().
-  */
-  case PragTyp_SHRINK_MEMORY: {
-    tdsqlite3_db_release_memory(db);
-    break;
-  }
-
-  /*
-  **  PRAGMA optimize
-  **  PRAGMA optimize(MASK)
-  **  PRAGMA schema.optimize
-  **  PRAGMA schema.optimize(MASK)
-  **
-  ** Attempt to optimize the database.  All schemas are optimized in the first
-  ** two forms, and only the specified schema is optimized in the latter two.
-  **
-  ** The details of optimizations performed by this pragma are expected
-  ** to change and improve over time.  Applications should anticipate that
-  ** this pragma will perform new optimizations in future releases.
-  **
-  ** The optional argument is a bitmask of optimizations to perform:
-  **
-  **    0x0001    Debugging mode.  Do not actually perform any optimizations
-  **              but instead return one line of text for each optimization
-  **              that would have been done.  Off by default.
-  **
-  **    0x0002    Run ANALYZE on tables that might benefit.  On by default.
-  **              See below for additional information.
-  **
-  **    0x0004    (Not yet implemented) Record usage and performance 
-  **              information from the current session in the
-  **              database file so that it will be available to "optimize"
-  **              pragmas run by future database connections.
-  **
-  **    0x0008    (Not yet implemented) Create indexes that might have
-  **              been helpful to recent queries
-  **
-  ** The default MASK is and always shall be 0xfffe.  0xfffe means perform all
-  ** of the optimizations listed above except Debug Mode, including new
-  ** optimizations that have not yet been invented.  If new optimizations are
-  ** ever added that should be off by default, those off-by-default 
-  ** optimizations will have bitmasks of 0x10000 or larger.
-  **
-  ** DETERMINATION OF WHEN TO RUN ANALYZE
-  **
-  ** In the current implementation, a table is analyzed if only if all of
-  ** the following are true:
-  **
-  ** (1) MASK bit 0x02 is set.
-  **
-  ** (2) The query planner used sqlite_stat1-style statistics for one or
-  **     more indexes of the table at some point during the lifetime of
-  **     the current connection.
-  **
-  ** (3) One or more indexes of the table are currently unanalyzed OR
-  **     the number of rows in the table has increased by 25 times or more
-  **     since the last time ANALYZE was run.
-  **
-  ** The rules for when tables are analyzed are likely to change in
-  ** future releases.
-  */
-  case PragTyp_OPTIMIZE: {
-    int iDbLast;           /* Loop termination point for the schema loop */
-    int iTabCur;           /* Cursor for a table whose size needs checking */
-    HashElem *k;           /* Loop over tables of a schema */
-    Schema *pSchema;       /* The current schema */
-    Table *pTab;           /* A table in the schema */
-    Index *pIdx;           /* An index of the table */
-    LogEst szThreshold;    /* Size threshold above which reanalysis is needd */
-    char *zSubSql;         /* SQL statement for the OP_SqlExec opcode */
-    u32 opMask;            /* Mask of operations to perform */
-
-    if( zRight ){
-      opMask = (u32)tdsqlite3Atoi(zRight);
-      if( (opMask & 0x02)==0 ) break;
-    }else{
-      opMask = 0xfffe;
-    }
-    iTabCur = pParse->nTab++;
-    for(iDbLast = zDb?iDb:db->nDb-1; iDb<=iDbLast; iDb++){
-      if( iDb==1 ) continue;
-      tdsqlite3CodeVerifySchema(pParse, iDb);
-      pSchema = db->aDb[iDb].pSchema;
-      for(k=sqliteHashFirst(&pSchema->tblHash); k; k=sqliteHashNext(k)){
-        pTab = (Table*)sqliteHashData(k);
-
-        /* If table pTab has not been used in a way that would benefit from
-        ** having analysis statistics during the current session, then skip it.
-        ** This also has the effect of skipping virtual tables and views */
-        if( (pTab->tabFlags & TF_StatsUsed)==0 ) continue;
-
-        /* Reanalyze if the table is 25 times larger than the last analysis */
-        szThreshold = pTab->nRowLogEst + 46; assert( tdsqlite3LogEst(25)==46 );
-        for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-          if( !pIdx->hasStat1 ){
-            szThreshold = 0; /* Always analyze if any index lacks statistics */
-            break;
-          }
-        }
-        if( szThreshold ){
-          tdsqlite3OpenTable(pParse, iTabCur, iDb, pTab, OP_OpenRead);
-          tdsqlite3VdbeAddOp3(v, OP_IfSmaller, iTabCur, 
-                         tdsqlite3VdbeCurrentAddr(v)+2+(opMask&1), szThreshold);
-          VdbeCoverage(v);
-        }
-        zSubSql = tdsqlite3MPrintf(db, "ANALYZE \"%w\".\"%w\"",
-                                 db->aDb[iDb].zDbSName, pTab->zName);
-        if( opMask & 0x01 ){
-          int r1 = tdsqlite3GetTempReg(pParse);
-          tdsqlite3VdbeAddOp4(v, OP_String8, 0, r1, 0, zSubSql, P4_DYNAMIC);
-          tdsqlite3VdbeAddOp2(v, OP_ResultRow, r1, 1);
-        }else{
-          tdsqlite3VdbeAddOp4(v, OP_SqlExec, 0, 0, 0, zSubSql, P4_DYNAMIC);
-        }
-      }
-    }
-    tdsqlite3VdbeAddOp0(v, OP_Expire);
-    break;
-  }
-
-  /*
-  **   PRAGMA busy_timeout
-  **   PRAGMA busy_timeout = N
-  **
-  ** Call tdsqlite3_busy_timeout(db, N).  Return the current timeout value
-  ** if one is set.  If no busy handler or a different busy handler is set
-  ** then 0 is returned.  Setting the busy_timeout to 0 or negative
-  ** disables the timeout.
-  */
-  /*case PragTyp_BUSY_TIMEOUT*/ default: {
-    assert( pPragma->ePragTyp==PragTyp_BUSY_TIMEOUT );
-    if( zRight ){
-      tdsqlite3_busy_timeout(db, tdsqlite3Atoi(zRight));
-    }
-    returnSingleInt(v, db->busyTimeout);
-    break;
-  }
-
-  /*
-  **   PRAGMA soft_heap_limit
-  **   PRAGMA soft_heap_limit = N
-  **
-  ** IMPLEMENTATION-OF: R-26343-45930 This pragma invokes the
-  ** tdsqlite3_soft_heap_limit64() interface with the argument N, if N is
-  ** specified and is a non-negative integer.
-  ** IMPLEMENTATION-OF: R-64451-07163 The soft_heap_limit pragma always
-  ** returns the same integer that would be returned by the
-  ** tdsqlite3_soft_heap_limit64(-1) C-language function.
-  */
-  case PragTyp_SOFT_HEAP_LIMIT: {
-    tdsqlite3_int64 N;
-    if( zRight && tdsqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK ){
-      tdsqlite3_soft_heap_limit64(N);
-    }
-    returnSingleInt(v, tdsqlite3_soft_heap_limit64(-1));
-    break;
-  }
-
-  /*
-  **   PRAGMA hard_heap_limit
-  **   PRAGMA hard_heap_limit = N
-  **
-  ** Invoke tdsqlite3_hard_heap_limit64() to query or set the hard heap
-  ** limit.  The hard heap limit can be activated or lowered by this
-  ** pragma, but not raised or deactivated.  Only the
-  ** tdsqlite3_hard_heap_limit64() C-language API can raise or deactivate
-  ** the hard heap limit.  This allows an application to set a heap limit
-  ** constraint that cannot be relaxed by an untrusted SQL script.
-  */
-  case PragTyp_HARD_HEAP_LIMIT: {
-    tdsqlite3_int64 N;
-    if( zRight && tdsqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK ){
-      tdsqlite3_int64 iPrior = tdsqlite3_hard_heap_limit64(-1);
-      if( N>0 && (iPrior==0 || iPrior>N) ) tdsqlite3_hard_heap_limit64(N);
-    }
-    returnSingleInt(v, tdsqlite3_hard_heap_limit64(-1));
-    break;
-  }
-
-  /*
-  **   PRAGMA threads
-  **   PRAGMA threads = N
-  **
-  ** Configure the maximum number of worker threads.  Return the new
-  ** maximum, which might be less than requested.
-  */
-  case PragTyp_THREADS: {
-    tdsqlite3_int64 N;
-    if( zRight
-     && tdsqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK
-     && N>=0
-    ){
-      tdsqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, (int)(N&0x7fffffff));
-    }
-    returnSingleInt(v, tdsqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, -1));
-    break;
-  }
-
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  /*
-  ** Report the current state of file logs for all databases
-  */
-  case PragTyp_LOCK_STATUS: {
-    static const char *const azLockName[] = {
-      "unlocked", "shared", "reserved", "pending", "exclusive"
-    };
-    int i;
-    pParse->nMem = 2;
-    for(i=0; i<db->nDb; i++){
-      Btree *pBt;
-      const char *zState = "unknown";
-      int j;
-      if( db->aDb[i].zDbSName==0 ) continue;
-      pBt = db->aDb[i].pBt;
-      if( pBt==0 || tdsqlite3BtreePager(pBt)==0 ){
-        zState = "closed";
-      }else if( tdsqlite3_file_control(db, i ? db->aDb[i].zDbSName : 0, 
-                                     SQLITE_FCNTL_LOCKSTATE, &j)==SQLITE_OK ){
-         zState = azLockName[j];
-      }
-      tdsqlite3VdbeMultiLoad(v, 1, "ss", db->aDb[i].zDbSName, zState);
-    }
-    break;
-  }
-#endif
-
-#ifdef SQLITE_HAS_CODEC
-  /* Pragma        iArg
-  ** ----------   ------
-  **  key           0
-  **  rekey         1
-  **  hexkey        2
-  **  hexrekey      3
-  **  textkey       4
-  **  textrekey     5
-  */
-  case PragTyp_KEY: {
-    if( zRight ){
-      char zBuf[40];
-      const char *zKey = zRight;
-      int n;
-      if( pPragma->iArg==2 || pPragma->iArg==3 ){
-        u8 iByte;
-        int i;
-        for(i=0, iByte=0; i<sizeof(zBuf)*2 && tdsqlite3Isxdigit(zRight[i]); i++){
-          iByte = (iByte<<4) + tdsqlite3HexToInt(zRight[i]);
-          if( (i&1)!=0 ) zBuf[i/2] = iByte;
-        }
-        zKey = zBuf;
-        n = i/2;
-      }else{
-        n = pPragma->iArg<4 ? tdsqlite3Strlen30(zRight) : -1;
-      }
-      if( (pPragma->iArg & 1)==0 ){
-        rc = tdsqlite3_key_v2(db, zDb, zKey, n);
-      }else{
-        rc = tdsqlite3_rekey_v2(db, zDb, zKey, n);
-      }
-      if( rc==SQLITE_OK && n!=0 ){
-        tdsqlite3VdbeSetNumCols(v, 1);
-        tdsqlite3VdbeSetColName(v, 0, COLNAME_NAME, "ok", SQLITE_STATIC);
-        returnSingleText(v, "ok");
-      }
-    }
-    break;
-  }
-#endif
-#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)
-  case PragTyp_ACTIVATE_EXTENSIONS: if( zRight ){
-#ifdef SQLITE_HAS_CODEC
-    if( tdsqlite3StrNICmp(zRight, "see-", 4)==0 ){
-      tdsqlite3_activate_see(&zRight[4]);
-    }
-#endif
-#ifdef SQLITE_ENABLE_CEROD
-    if( tdsqlite3StrNICmp(zRight, "cerod-", 6)==0 ){
-      tdsqlite3_activate_cerod(&zRight[6]);
-    }
-#endif
-  }
-  break;
-#endif
-
-  } /* End of the PRAGMA switch */
-
-  /* The following block is a no-op unless SQLITE_DEBUG is defined. Its only
-  ** purpose is to execute assert() statements to verify that if the
-  ** PragFlg_NoColumns1 flag is set and the caller specified an argument
-  ** to the PRAGMA, the implementation has not added any OP_ResultRow 
-  ** instructions to the VM.  */
-  if( (pPragma->mPragFlg & PragFlg_NoColumns1) && zRight ){
-    tdsqlite3VdbeVerifyNoResultRow(v);
-  }
-
-pragma_out:
-  tdsqlite3DbFree(db, zLeft);
-  tdsqlite3DbFree(db, zRight);
-}
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/*****************************************************************************
-** Implementation of an eponymous virtual table that runs a pragma.
-**
-*/
-typedef struct PragmaVtab PragmaVtab;
-typedef struct PragmaVtabCursor PragmaVtabCursor;
-struct PragmaVtab {
-  tdsqlite3_vtab base;        /* Base class.  Must be first */
-  tdsqlite3 *db;              /* The database connection to which it belongs */
-  const PragmaName *pName;  /* Name of the pragma */
-  u8 nHidden;               /* Number of hidden columns */
-  u8 iHidden;               /* Index of the first hidden column */
-};
-struct PragmaVtabCursor {
-  tdsqlite3_vtab_cursor base; /* Base class.  Must be first */
-  tdsqlite3_stmt *pPragma;    /* The pragma statement to run */
-  sqlite_int64 iRowid;      /* Current rowid */
-  char *azArg[2];           /* Value of the argument and schema */
-};
-
-/* 
-** Pragma virtual table module xConnect method.
-*/
-static int pragmaVtabConnect(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  const PragmaName *pPragma = (const PragmaName*)pAux;
-  PragmaVtab *pTab = 0;
-  int rc;
-  int i, j;
-  char cSep = '(';
-  StrAccum acc;
-  char zBuf[200];
-
-  UNUSED_PARAMETER(argc);
-  UNUSED_PARAMETER(argv);
-  tdsqlite3StrAccumInit(&acc, 0, zBuf, sizeof(zBuf), 0);
-  tdsqlite3_str_appendall(&acc, "CREATE TABLE x");
-  for(i=0, j=pPragma->iPragCName; i<pPragma->nPragCName; i++, j++){
-    tdsqlite3_str_appendf(&acc, "%c\"%s\"", cSep, pragCName[j]);
-    cSep = ',';
-  }
-  if( i==0 ){
-    tdsqlite3_str_appendf(&acc, "(\"%s\"", pPragma->zName);
-    i++;
-  }
-  j = 0;
-  if( pPragma->mPragFlg & PragFlg_Result1 ){
-    tdsqlite3_str_appendall(&acc, ",arg HIDDEN");
-    j++;
-  }
-  if( pPragma->mPragFlg & (PragFlg_SchemaOpt|PragFlg_SchemaReq) ){
-    tdsqlite3_str_appendall(&acc, ",schema HIDDEN");
-    j++;
-  }
-  tdsqlite3_str_append(&acc, ")", 1);
-  tdsqlite3StrAccumFinish(&acc);
-  assert( strlen(zBuf) < sizeof(zBuf)-1 );
-  rc = tdsqlite3_declare_vtab(db, zBuf);
-  if( rc==SQLITE_OK ){
-    pTab = (PragmaVtab*)tdsqlite3_malloc(sizeof(PragmaVtab));
-    if( pTab==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      memset(pTab, 0, sizeof(PragmaVtab));
-      pTab->pName = pPragma;
-      pTab->db = db;
-      pTab->iHidden = i;
-      pTab->nHidden = j;
-    }
-  }else{
-    *pzErr = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-  }
-
-  *ppVtab = (tdsqlite3_vtab*)pTab;
-  return rc;
-}
-
-/* 
-** Pragma virtual table module xDisconnect method.
-*/
-static int pragmaVtabDisconnect(tdsqlite3_vtab *pVtab){
-  PragmaVtab *pTab = (PragmaVtab*)pVtab;
-  tdsqlite3_free(pTab);
-  return SQLITE_OK;
-}
-
-/* Figure out the best index to use to search a pragma virtual table.
-**
-** There are not really any index choices.  But we want to encourage the
-** query planner to give == constraints on as many hidden parameters as
-** possible, and especially on the first hidden parameter.  So return a
-** high cost if hidden parameters are unconstrained.
-*/
-static int pragmaVtabBestIndex(tdsqlite3_vtab *tab, tdsqlite3_index_info *pIdxInfo){
-  PragmaVtab *pTab = (PragmaVtab*)tab;
-  const struct tdsqlite3_index_constraint *pConstraint;
-  int i, j;
-  int seen[2];
-
-  pIdxInfo->estimatedCost = (double)1;
-  if( pTab->nHidden==0 ){ return SQLITE_OK; }
-  pConstraint = pIdxInfo->aConstraint;
-  seen[0] = 0;
-  seen[1] = 0;
-  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
-    if( pConstraint->usable==0 ) continue;
-    if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
-    if( pConstraint->iColumn < pTab->iHidden ) continue;
-    j = pConstraint->iColumn - pTab->iHidden;
-    assert( j < 2 );
-    seen[j] = i+1;
-  }
-  if( seen[0]==0 ){
-    pIdxInfo->estimatedCost = (double)2147483647;
-    pIdxInfo->estimatedRows = 2147483647;
-    return SQLITE_OK;
-  }
-  j = seen[0]-1;
-  pIdxInfo->aConstraintUsage[j].argvIndex = 1;
-  pIdxInfo->aConstraintUsage[j].omit = 1;
-  if( seen[1]==0 ) return SQLITE_OK;
-  pIdxInfo->estimatedCost = (double)20;
-  pIdxInfo->estimatedRows = 20;
-  j = seen[1]-1;
-  pIdxInfo->aConstraintUsage[j].argvIndex = 2;
-  pIdxInfo->aConstraintUsage[j].omit = 1;
-  return SQLITE_OK;
-}
-
-/* Create a new cursor for the pragma virtual table */
-static int pragmaVtabOpen(tdsqlite3_vtab *pVtab, tdsqlite3_vtab_cursor **ppCursor){
-  PragmaVtabCursor *pCsr;
-  pCsr = (PragmaVtabCursor*)tdsqlite3_malloc(sizeof(*pCsr));
-  if( pCsr==0 ) return SQLITE_NOMEM;
-  memset(pCsr, 0, sizeof(PragmaVtabCursor));
-  pCsr->base.pVtab = pVtab;
-  *ppCursor = &pCsr->base;
-  return SQLITE_OK;
-}
-
-/* Clear all content from pragma virtual table cursor. */
-static void pragmaVtabCursorClear(PragmaVtabCursor *pCsr){
-  int i;
-  tdsqlite3_finalize(pCsr->pPragma);
-  pCsr->pPragma = 0;
-  for(i=0; i<ArraySize(pCsr->azArg); i++){
-    tdsqlite3_free(pCsr->azArg[i]);
-    pCsr->azArg[i] = 0;
-  }
-}
-
-/* Close a pragma virtual table cursor */
-static int pragmaVtabClose(tdsqlite3_vtab_cursor *cur){
-  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)cur;
-  pragmaVtabCursorClear(pCsr);
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-/* Advance the pragma virtual table cursor to the next row */
-static int pragmaVtabNext(tdsqlite3_vtab_cursor *pVtabCursor){
-  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
-  int rc = SQLITE_OK;
-
-  /* Increment the xRowid value */
-  pCsr->iRowid++;
-  assert( pCsr->pPragma );
-  if( SQLITE_ROW!=tdsqlite3_step(pCsr->pPragma) ){
-    rc = tdsqlite3_finalize(pCsr->pPragma);
-    pCsr->pPragma = 0;
-    pragmaVtabCursorClear(pCsr);
-  }
-  return rc;
-}
-
-/* 
-** Pragma virtual table module xFilter method.
-*/
-static int pragmaVtabFilter(
-  tdsqlite3_vtab_cursor *pVtabCursor, 
-  int idxNum, const char *idxStr,
-  int argc, tdsqlite3_value **argv
-){
-  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
-  PragmaVtab *pTab = (PragmaVtab*)(pVtabCursor->pVtab);
-  int rc;
-  int i, j;
-  StrAccum acc;
-  char *zSql;
-
-  UNUSED_PARAMETER(idxNum);
-  UNUSED_PARAMETER(idxStr);
-  pragmaVtabCursorClear(pCsr);
-  j = (pTab->pName->mPragFlg & PragFlg_Result1)!=0 ? 0 : 1;
-  for(i=0; i<argc; i++, j++){
-    const char *zText = (const char*)tdsqlite3_value_text(argv[i]);
-    assert( j<ArraySize(pCsr->azArg) );
-    assert( pCsr->azArg[j]==0 );
-    if( zText ){
-      pCsr->azArg[j] = tdsqlite3_mprintf("%s", zText);
-      if( pCsr->azArg[j]==0 ){
-        return SQLITE_NOMEM;
-      }
-    }
-  }
-  tdsqlite3StrAccumInit(&acc, 0, 0, 0, pTab->db->aLimit[SQLITE_LIMIT_SQL_LENGTH]);
-  tdsqlite3_str_appendall(&acc, "PRAGMA ");
-  if( pCsr->azArg[1] ){
-    tdsqlite3_str_appendf(&acc, "%Q.", pCsr->azArg[1]);
-  }
-  tdsqlite3_str_appendall(&acc, pTab->pName->zName);
-  if( pCsr->azArg[0] ){
-    tdsqlite3_str_appendf(&acc, "=%Q", pCsr->azArg[0]);
-  }
-  zSql = tdsqlite3StrAccumFinish(&acc);
-  if( zSql==0 ) return SQLITE_NOMEM;
-  rc = tdsqlite3_prepare_v2(pTab->db, zSql, -1, &pCsr->pPragma, 0);
-  tdsqlite3_free(zSql);
-  if( rc!=SQLITE_OK ){
-    pTab->base.zErrMsg = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(pTab->db));
-    return rc;
-  }
-  return pragmaVtabNext(pVtabCursor);
-}
-
-/*
-** Pragma virtual table module xEof method.
-*/
-static int pragmaVtabEof(tdsqlite3_vtab_cursor *pVtabCursor){
-  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
-  return (pCsr->pPragma==0);
-}
-
-/* The xColumn method simply returns the corresponding column from
-** the PRAGMA.  
-*/
-static int pragmaVtabColumn(
-  tdsqlite3_vtab_cursor *pVtabCursor, 
-  tdsqlite3_context *ctx, 
-  int i
-){
-  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
-  PragmaVtab *pTab = (PragmaVtab*)(pVtabCursor->pVtab);
-  if( i<pTab->iHidden ){
-    tdsqlite3_result_value(ctx, tdsqlite3_column_value(pCsr->pPragma, i));
-  }else{
-    tdsqlite3_result_text(ctx, pCsr->azArg[i-pTab->iHidden],-1,SQLITE_TRANSIENT);
-  }
-  return SQLITE_OK;
-}
-
-/* 
-** Pragma virtual table module xRowid method.
-*/
-static int pragmaVtabRowid(tdsqlite3_vtab_cursor *pVtabCursor, sqlite_int64 *p){
-  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
-  *p = pCsr->iRowid;
-  return SQLITE_OK;
-}
-
-/* The pragma virtual table object */
-static const tdsqlite3_module pragmaVtabModule = {
-  0,                           /* iVersion */
-  0,                           /* xCreate - create a table */
-  pragmaVtabConnect,           /* xConnect - connect to an existing table */
-  pragmaVtabBestIndex,         /* xBestIndex - Determine search strategy */
-  pragmaVtabDisconnect,        /* xDisconnect - Disconnect from a table */
-  0,                           /* xDestroy - Drop a table */
-  pragmaVtabOpen,              /* xOpen - open a cursor */
-  pragmaVtabClose,             /* xClose - close a cursor */
-  pragmaVtabFilter,            /* xFilter - configure scan constraints */
-  pragmaVtabNext,              /* xNext - advance a cursor */
-  pragmaVtabEof,               /* xEof */
-  pragmaVtabColumn,            /* xColumn - read data */
-  pragmaVtabRowid,             /* xRowid - read data */
-  0,                           /* xUpdate - write data */
-  0,                           /* xBegin - begin transaction */
-  0,                           /* xSync - sync transaction */
-  0,                           /* xCommit - commit transaction */
-  0,                           /* xRollback - rollback transaction */
-  0,                           /* xFindFunction - function overloading */
-  0,                           /* xRename - rename the table */
-  0,                           /* xSavepoint */
-  0,                           /* xRelease */
-  0,                           /* xRollbackTo */
-  0                            /* xShadowName */
-};
-
-/*
-** Check to see if zTabName is really the name of a pragma.  If it is,
-** then register an eponymous virtual table for that pragma and return
-** a pointer to the Module object for the new virtual table.
-*/
-SQLITE_PRIVATE Module *tdsqlite3PragmaVtabRegister(tdsqlite3 *db, const char *zName){
-  const PragmaName *pName;
-  assert( tdsqlite3_strnicmp(zName, "pragma_", 7)==0 );
-  pName = pragmaLocate(zName+7);
-  if( pName==0 ) return 0;
-  if( (pName->mPragFlg & (PragFlg_Result0|PragFlg_Result1))==0 ) return 0;
-  assert( tdsqlite3HashFind(&db->aModule, zName)==0 );
-  return tdsqlite3VtabCreateModule(db, zName, &pragmaVtabModule, (void*)pName, 0);
-}
-
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-#endif /* SQLITE_OMIT_PRAGMA */
-
-/************** End of pragma.c **********************************************/
-/************** Begin file prepare.c *****************************************/
-/*
-** 2005 May 25
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the implementation of the tdsqlite3_prepare()
-** interface, and routines that contribute to loading the database schema
-** from disk.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** Fill the InitData structure with an error message that indicates
-** that the database is corrupt.
-*/
-static void corruptSchema(
-  InitData *pData,     /* Initialization context */
-  const char *zObj,    /* Object being parsed at the point of error */
-  const char *zExtra   /* Error information */
-){
-  tdsqlite3 *db = pData->db;
-  if( db->mallocFailed ){
-    pData->rc = SQLITE_NOMEM_BKPT;
-  }else if( pData->pzErrMsg[0]!=0 ){
-    /* A error message has already been generated.  Do not overwrite it */
-  }else if( pData->mInitFlags & INITFLAG_AlterTable ){
-    *pData->pzErrMsg = tdsqlite3DbStrDup(db, zExtra);
-    pData->rc = SQLITE_ERROR;
-  }else if( db->flags & SQLITE_WriteSchema ){
-    pData->rc = SQLITE_CORRUPT_BKPT;
-  }else{
-    char *z;
-    if( zObj==0 ) zObj = "?";
-    z = tdsqlite3MPrintf(db, "malformed database schema (%s)", zObj);
-    if( zExtra && zExtra[0] ) z = tdsqlite3MPrintf(db, "%z - %s", z, zExtra);
-    *pData->pzErrMsg = z;
-    pData->rc = SQLITE_CORRUPT_BKPT;
-  }
-}
-
-/*
-** Check to see if any sibling index (another index on the same table)
-** of pIndex has the same root page number, and if it does, return true.
-** This would indicate a corrupt schema.
-*/
-SQLITE_PRIVATE int tdsqlite3IndexHasDuplicateRootPage(Index *pIndex){
-  Index *p;
-  for(p=pIndex->pTable->pIndex; p; p=p->pNext){
-    if( p->tnum==pIndex->tnum && p!=pIndex ) return 1;
-  }
-  return 0;
-}
-
-/* forward declaration */
-static int tdsqlite3Prepare(
-  tdsqlite3 *db,              /* Database handle. */
-  const char *zSql,         /* UTF-8 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  u32 prepFlags,            /* Zero or more SQLITE_PREPARE_* flags */
-  Vdbe *pReprepare,         /* VM being reprepared */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const char **pzTail       /* OUT: End of parsed string */
-);
-
-
-/*
-** This is the callback routine for the code that initializes the
-** database.  See tdsqlite3Init() below for additional information.
-** This routine is also called from the OP_ParseSchema opcode of the VDBE.
-**
-** Each callback contains the following information:
-**
-**     argv[0] = type of object: "table", "index", "trigger", or "view".
-**     argv[1] = name of thing being created
-**     argv[2] = associated table if an index or trigger
-**     argv[3] = root page number for table or index. 0 for trigger or view.
-**     argv[4] = SQL text for the CREATE statement.
-**
-*/
-SQLITE_PRIVATE int tdsqlite3InitCallback(void *pInit, int argc, char **argv, char **NotUsed){
-  InitData *pData = (InitData*)pInit;
-  tdsqlite3 *db = pData->db;
-  int iDb = pData->iDb;
-
-  assert( argc==5 );
-  UNUSED_PARAMETER2(NotUsed, argc);
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  DbClearProperty(db, iDb, DB_Empty);
-  pData->nInitRow++;
-  if( db->mallocFailed ){
-    corruptSchema(pData, argv[1], 0);
-    return 1;
-  }
-
-  assert( iDb>=0 && iDb<db->nDb );
-  if( argv==0 ) return 0;   /* Might happen if EMPTY_RESULT_CALLBACKS are on */
-  if( argv[3]==0 ){
-    corruptSchema(pData, argv[1], 0);
-  }else if( tdsqlite3_strnicmp(argv[4],"create ",7)==0 ){
-    /* Call the parser to process a CREATE TABLE, INDEX or VIEW.
-    ** But because db->init.busy is set to 1, no VDBE code is generated
-    ** or executed.  All the parser does is build the internal data
-    ** structures that describe the table, index, or view.
-    */
-    int rc;
-    u8 saved_iDb = db->init.iDb;
-    tdsqlite3_stmt *pStmt;
-    TESTONLY(int rcp);            /* Return code from tdsqlite3_prepare() */
-
-    assert( db->init.busy );
-    db->init.iDb = iDb;
-    db->init.newTnum = tdsqlite3Atoi(argv[3]);
-    db->init.orphanTrigger = 0;
-    db->init.azInit = argv;
-    pStmt = 0;
-    TESTONLY(rcp = ) tdsqlite3Prepare(db, argv[4], -1, 0, 0, &pStmt, 0);
-    rc = db->errCode;
-    assert( (rc&0xFF)==(rcp&0xFF) );
-    db->init.iDb = saved_iDb;
-    /* assert( saved_iDb==0 || (db->mDbFlags & DBFLAG_Vacuum)!=0 ); */
-    if( SQLITE_OK!=rc ){
-      if( db->init.orphanTrigger ){
-        assert( iDb==1 );
-      }else{
-        if( rc > pData->rc ) pData->rc = rc;
-        if( rc==SQLITE_NOMEM ){
-          tdsqlite3OomFault(db);
-        }else if( rc!=SQLITE_INTERRUPT && (rc&0xFF)!=SQLITE_LOCKED ){
-          corruptSchema(pData, argv[1], tdsqlite3_errmsg(db));
-        }
-      }
-    }
-    tdsqlite3_finalize(pStmt);
-  }else if( argv[1]==0 || (argv[4]!=0 && argv[4][0]!=0) ){
-    corruptSchema(pData, argv[1], 0);
-  }else{
-    /* If the SQL column is blank it means this is an index that
-    ** was created to be the PRIMARY KEY or to fulfill a UNIQUE
-    ** constraint for a CREATE TABLE.  The index should have already
-    ** been created when we processed the CREATE TABLE.  All we have
-    ** to do here is record the root page number for that index.
-    */
-    Index *pIndex;
-    pIndex = tdsqlite3FindIndex(db, argv[1], db->aDb[iDb].zDbSName);
-    if( pIndex==0
-     || tdsqlite3GetInt32(argv[3],&pIndex->tnum)==0
-     || pIndex->tnum<2
-     || tdsqlite3IndexHasDuplicateRootPage(pIndex)
-    ){
-      corruptSchema(pData, argv[1], pIndex?"invalid rootpage":"orphan index");
-    }
-  }
-  return 0;
-}
-
-/*
-** Attempt to read the database schema and initialize internal
-** data structures for a single database file.  The index of the
-** database file is given by iDb.  iDb==0 is used for the main
-** database.  iDb==1 should never be used.  iDb>=2 is used for
-** auxiliary databases.  Return one of the SQLITE_ error codes to
-** indicate success or failure.
-*/
-SQLITE_PRIVATE int tdsqlite3InitOne(tdsqlite3 *db, int iDb, char **pzErrMsg, u32 mFlags){
-  int rc;
-  int i;
-#ifndef SQLITE_OMIT_DEPRECATED
-  int size;
-#endif
-  Db *pDb;
-  char const *azArg[6];
-  int meta[5];
-  InitData initData;
-  const char *zMasterName;
-  int openedTransaction = 0;
-
-  assert( (db->mDbFlags & DBFLAG_SchemaKnownOk)==0 );
-  assert( iDb>=0 && iDb<db->nDb );
-  assert( db->aDb[iDb].pSchema );
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  assert( iDb==1 || tdsqlite3BtreeHoldsMutex(db->aDb[iDb].pBt) );
-
-  db->init.busy = 1;
-
-  /* Construct the in-memory representation schema tables (sqlite_master or
-  ** sqlite_temp_master) by invoking the parser directly.  The appropriate
-  ** table name will be inserted automatically by the parser so we can just
-  ** use the abbreviation "x" here.  The parser will also automatically tag
-  ** the schema table as read-only. */
-  azArg[0] = "table";
-  azArg[1] = zMasterName = SCHEMA_TABLE(iDb);
-  azArg[2] = azArg[1];
-  azArg[3] = "1";
-  azArg[4] = "CREATE TABLE x(type text,name text,tbl_name text,"
-                            "rootpage int,sql text)";
-  azArg[5] = 0;
-  initData.db = db;
-  initData.iDb = iDb;
-  initData.rc = SQLITE_OK;
-  initData.pzErrMsg = pzErrMsg;
-  initData.mInitFlags = mFlags;
-  initData.nInitRow = 0;
-  tdsqlite3InitCallback(&initData, 5, (char **)azArg, 0);
-  if( initData.rc ){
-    rc = initData.rc;
-    goto error_out;
-  }
-
-  /* Create a cursor to hold the database open
-  */
-  pDb = &db->aDb[iDb];
-  if( pDb->pBt==0 ){
-    assert( iDb==1 );
-    DbSetProperty(db, 1, DB_SchemaLoaded);
-    rc = SQLITE_OK;
-    goto error_out;
-  }
-
-  /* If there is not already a read-only (or read-write) transaction opened
-  ** on the b-tree database, open one now. If a transaction is opened, it 
-  ** will be closed before this function returns.  */
-  tdsqlite3BtreeEnter(pDb->pBt);
-  if( !tdsqlite3BtreeIsInReadTrans(pDb->pBt) ){
-    rc = tdsqlite3BtreeBeginTrans(pDb->pBt, 0, 0);
-    if( rc!=SQLITE_OK ){
-      tdsqlite3SetString(pzErrMsg, db, tdsqlite3ErrStr(rc));
-      goto initone_error_out;
-    }
-    openedTransaction = 1;
-  }
-
-  /* Get the database meta information.
-  **
-  ** Meta values are as follows:
-  **    meta[0]   Schema cookie.  Changes with each schema change.
-  **    meta[1]   File format of schema layer.
-  **    meta[2]   Size of the page cache.
-  **    meta[3]   Largest rootpage (auto/incr_vacuum mode)
-  **    meta[4]   Db text encoding. 1:UTF-8 2:UTF-16LE 3:UTF-16BE
-  **    meta[5]   User version
-  **    meta[6]   Incremental vacuum mode
-  **    meta[7]   unused
-  **    meta[8]   unused
-  **    meta[9]   unused
-  **
-  ** Note: The #defined SQLITE_UTF* symbols in sqliteInt.h correspond to
-  ** the possible values of meta[4].
-  */
-  for(i=0; i<ArraySize(meta); i++){
-    tdsqlite3BtreeGetMeta(pDb->pBt, i+1, (u32 *)&meta[i]);
-  }
-  if( (db->flags & SQLITE_ResetDatabase)!=0 ){
-    memset(meta, 0, sizeof(meta));
-  }
-  pDb->pSchema->schema_cookie = meta[BTREE_SCHEMA_VERSION-1];
-
-  /* If opening a non-empty database, check the text encoding. For the
-  ** main database, set sqlite3.enc to the encoding of the main database.
-  ** For an attached db, it is an error if the encoding is not the same
-  ** as sqlite3.enc.
-  */
-  if( meta[BTREE_TEXT_ENCODING-1] ){  /* text encoding */
-    if( iDb==0 ){
-#ifndef SQLITE_OMIT_UTF16
-      u8 encoding;
-      /* If opening the main database, set ENC(db). */
-      encoding = (u8)meta[BTREE_TEXT_ENCODING-1] & 3;
-      if( encoding==0 ) encoding = SQLITE_UTF8;
-      ENC(db) = encoding;
-#else
-      ENC(db) = SQLITE_UTF8;
-#endif
-    }else{
-      /* If opening an attached database, the encoding much match ENC(db) */
-      if( meta[BTREE_TEXT_ENCODING-1]!=ENC(db) ){
-        tdsqlite3SetString(pzErrMsg, db, "attached databases must use the same"
-            " text encoding as main database");
-        rc = SQLITE_ERROR;
-        goto initone_error_out;
-      }
-    }
-  }else{
-    DbSetProperty(db, iDb, DB_Empty);
-  }
-  pDb->pSchema->enc = ENC(db);
-
-  if( pDb->pSchema->cache_size==0 ){
-#ifndef SQLITE_OMIT_DEPRECATED
-    size = tdsqlite3AbsInt32(meta[BTREE_DEFAULT_CACHE_SIZE-1]);
-    if( size==0 ){ size = SQLITE_DEFAULT_CACHE_SIZE; }
-    pDb->pSchema->cache_size = size;
-#else
-    pDb->pSchema->cache_size = SQLITE_DEFAULT_CACHE_SIZE;
-#endif
-    tdsqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
-  }
-
-  /*
-  ** file_format==1    Version 3.0.0.
-  ** file_format==2    Version 3.1.3.  // ALTER TABLE ADD COLUMN
-  ** file_format==3    Version 3.1.4.  // ditto but with non-NULL defaults
-  ** file_format==4    Version 3.3.0.  // DESC indices.  Boolean constants
-  */
-  pDb->pSchema->file_format = (u8)meta[BTREE_FILE_FORMAT-1];
-  if( pDb->pSchema->file_format==0 ){
-    pDb->pSchema->file_format = 1;
-  }
-  if( pDb->pSchema->file_format>SQLITE_MAX_FILE_FORMAT ){
-    tdsqlite3SetString(pzErrMsg, db, "unsupported file format");
-    rc = SQLITE_ERROR;
-    goto initone_error_out;
-  }
-
-  /* Ticket #2804:  When we open a database in the newer file format,
-  ** clear the legacy_file_format pragma flag so that a VACUUM will
-  ** not downgrade the database and thus invalidate any descending
-  ** indices that the user might have created.
-  */
-  if( iDb==0 && meta[BTREE_FILE_FORMAT-1]>=4 ){
-    db->flags &= ~(u64)SQLITE_LegacyFileFmt;
-  }
-
-  /* Read the schema information out of the schema tables
-  */
-  assert( db->init.busy );
-  {
-    char *zSql;
-    zSql = tdsqlite3MPrintf(db, 
-        "SELECT*FROM\"%w\".%s ORDER BY rowid",
-        db->aDb[iDb].zDbSName, zMasterName);
-#ifndef SQLITE_OMIT_AUTHORIZATION
-    {
-      tdsqlite3_xauth xAuth;
-      xAuth = db->xAuth;
-      db->xAuth = 0;
-#endif
-      rc = tdsqlite3_exec(db, zSql, tdsqlite3InitCallback, &initData, 0);
-#ifndef SQLITE_OMIT_AUTHORIZATION
-      db->xAuth = xAuth;
-    }
-#endif
-    if( rc==SQLITE_OK ) rc = initData.rc;
-    tdsqlite3DbFree(db, zSql);
-#ifndef SQLITE_OMIT_ANALYZE
-    if( rc==SQLITE_OK ){
-      tdsqlite3AnalysisLoad(db, iDb);
-    }
-#endif
-  }
-  if( db->mallocFailed ){
-    rc = SQLITE_NOMEM_BKPT;
-    tdsqlite3ResetAllSchemasOfConnection(db);
-  }
-  if( rc==SQLITE_OK || (db->flags&SQLITE_NoSchemaError)){
-    /* Black magic: If the SQLITE_NoSchemaError flag is set, then consider
-    ** the schema loaded, even if errors occurred. In this situation the 
-    ** current tdsqlite3_prepare() operation will fail, but the following one
-    ** will attempt to compile the supplied statement against whatever subset
-    ** of the schema was loaded before the error occurred. The primary
-    ** purpose of this is to allow access to the sqlite_master table
-    ** even when its contents have been corrupted.
-    */
-    DbSetProperty(db, iDb, DB_SchemaLoaded);
-    rc = SQLITE_OK;
-  }
-
-  /* Jump here for an error that occurs after successfully allocating
-  ** curMain and calling tdsqlite3BtreeEnter(). For an error that occurs
-  ** before that point, jump to error_out.
-  */
-initone_error_out:
-  if( openedTransaction ){
-    tdsqlite3BtreeCommit(pDb->pBt);
-  }
-  tdsqlite3BtreeLeave(pDb->pBt);
-
-error_out:
-  if( rc ){
-    if( rc==SQLITE_NOMEM || rc==SQLITE_IOERR_NOMEM ){
-      tdsqlite3OomFault(db);
-    }
-    tdsqlite3ResetOneSchema(db, iDb);
-  }
-  db->init.busy = 0;
-  return rc;
-}
-
-/*
-** Initialize all database files - the main database file, the file
-** used to store temporary tables, and any additional database files
-** created using ATTACH statements.  Return a success code.  If an
-** error occurs, write an error message into *pzErrMsg.
-**
-** After a database is initialized, the DB_SchemaLoaded bit is set
-** bit is set in the flags field of the Db structure. If the database
-** file was of zero-length, then the DB_Empty flag is also set.
-*/
-SQLITE_PRIVATE int tdsqlite3Init(tdsqlite3 *db, char **pzErrMsg){
-  int i, rc;
-  int commit_internal = !(db->mDbFlags&DBFLAG_SchemaChange);
-  
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  assert( tdsqlite3BtreeHoldsMutex(db->aDb[0].pBt) );
-  assert( db->init.busy==0 );
-  ENC(db) = SCHEMA_ENC(db);
-  assert( db->nDb>0 );
-  /* Do the main schema first */
-  if( !DbHasProperty(db, 0, DB_SchemaLoaded) ){
-    rc = tdsqlite3InitOne(db, 0, pzErrMsg, 0);
-    if( rc ) return rc;
-  }
-  /* All other schemas after the main schema. The "temp" schema must be last */
-  for(i=db->nDb-1; i>0; i--){
-    assert( i==1 || tdsqlite3BtreeHoldsMutex(db->aDb[i].pBt) );
-    if( !DbHasProperty(db, i, DB_SchemaLoaded) ){
-      rc = tdsqlite3InitOne(db, i, pzErrMsg, 0);
-      if( rc ) return rc;
-    }
-  }
-  if( commit_internal ){
-    tdsqlite3CommitInternalChanges(db);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** This routine is a no-op if the database schema is already initialized.
-** Otherwise, the schema is loaded. An error code is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3ReadSchema(Parse *pParse){
-  int rc = SQLITE_OK;
-  tdsqlite3 *db = pParse->db;
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  if( !db->init.busy ){
-    rc = tdsqlite3Init(db, &pParse->zErrMsg);
-    if( rc!=SQLITE_OK ){
-      pParse->rc = rc;
-      pParse->nErr++;
-    }else if( db->noSharedCache ){
-      db->mDbFlags |= DBFLAG_SchemaKnownOk;
-    }
-  }
-  return rc;
-}
-
-
-/*
-** Check schema cookies in all databases.  If any cookie is out
-** of date set pParse->rc to SQLITE_SCHEMA.  If all schema cookies
-** make no changes to pParse->rc.
-*/
-static void schemaIsValid(Parse *pParse){
-  tdsqlite3 *db = pParse->db;
-  int iDb;
-  int rc;
-  int cookie;
-
-  assert( pParse->checkSchema );
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  for(iDb=0; iDb<db->nDb; iDb++){
-    int openedTransaction = 0;         /* True if a transaction is opened */
-    Btree *pBt = db->aDb[iDb].pBt;     /* Btree database to read cookie from */
-    if( pBt==0 ) continue;
-
-    /* If there is not already a read-only (or read-write) transaction opened
-    ** on the b-tree database, open one now. If a transaction is opened, it 
-    ** will be closed immediately after reading the meta-value. */
-    if( !tdsqlite3BtreeIsInReadTrans(pBt) ){
-      rc = tdsqlite3BtreeBeginTrans(pBt, 0, 0);
-      if( rc==SQLITE_NOMEM || rc==SQLITE_IOERR_NOMEM ){
-        tdsqlite3OomFault(db);
-      }
-      if( rc!=SQLITE_OK ) return;
-      openedTransaction = 1;
-    }
-
-    /* Read the schema cookie from the database. If it does not match the 
-    ** value stored as part of the in-memory schema representation,
-    ** set Parse.rc to SQLITE_SCHEMA. */
-    tdsqlite3BtreeGetMeta(pBt, BTREE_SCHEMA_VERSION, (u32 *)&cookie);
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    if( cookie!=db->aDb[iDb].pSchema->schema_cookie ){
-      tdsqlite3ResetOneSchema(db, iDb);
-      pParse->rc = SQLITE_SCHEMA;
-    }
-
-    /* Close the transaction, if one was opened. */
-    if( openedTransaction ){
-      tdsqlite3BtreeCommit(pBt);
-    }
-  }
-}
-
-/*
-** Convert a schema pointer into the iDb index that indicates
-** which database file in db->aDb[] the schema refers to.
-**
-** If the same database is attached more than once, the first
-** attached database is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3SchemaToIndex(tdsqlite3 *db, Schema *pSchema){
-  int i = -1000000;
-
-  /* If pSchema is NULL, then return -1000000. This happens when code in 
-  ** expr.c is trying to resolve a reference to a transient table (i.e. one
-  ** created by a sub-select). In this case the return value of this 
-  ** function should never be used.
-  **
-  ** We return -1000000 instead of the more usual -1 simply because using
-  ** -1000000 as the incorrect index into db->aDb[] is much 
-  ** more likely to cause a segfault than -1 (of course there are assert()
-  ** statements too, but it never hurts to play the odds).
-  */
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  if( pSchema ){
-    for(i=0; 1; i++){
-      assert( i<db->nDb );
-      if( db->aDb[i].pSchema==pSchema ){
-        break;
-      }
-    }
-    assert( i>=0 && i<db->nDb );
-  }
-  return i;
-}
-
-/*
-** Free all memory allocations in the pParse object
-*/
-SQLITE_PRIVATE void tdsqlite3ParserReset(Parse *pParse){
-  tdsqlite3 *db = pParse->db;
-  tdsqlite3DbFree(db, pParse->aLabel);
-  tdsqlite3ExprListDelete(db, pParse->pConstExpr);
-  if( db ){
-    assert( db->lookaside.bDisable >= pParse->disableLookaside );
-    db->lookaside.bDisable -= pParse->disableLookaside;
-    db->lookaside.sz = db->lookaside.bDisable ? 0 : db->lookaside.szTrue;
-  }
-  pParse->disableLookaside = 0;
-}
-
-/*
-** Compile the UTF-8 encoded SQL statement zSql into a statement handle.
-*/
-static int tdsqlite3Prepare(
-  tdsqlite3 *db,              /* Database handle. */
-  const char *zSql,         /* UTF-8 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  u32 prepFlags,            /* Zero or more SQLITE_PREPARE_* flags */
-  Vdbe *pReprepare,         /* VM being reprepared */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const char **pzTail       /* OUT: End of parsed string */
-){
-  char *zErrMsg = 0;        /* Error message */
-  int rc = SQLITE_OK;       /* Result code */
-  int i;                    /* Loop counter */
-  Parse sParse;             /* Parsing context */
-
-  memset(&sParse, 0, PARSE_HDR_SZ);
-  memset(PARSE_TAIL(&sParse), 0, PARSE_TAIL_SZ);
-  sParse.pReprepare = pReprepare;
-  assert( ppStmt && *ppStmt==0 );
-  /* assert( !db->mallocFailed ); // not true with SQLITE_USE_ALLOCA */
-  assert( tdsqlite3_mutex_held(db->mutex) );
-
-  /* For a long-term use prepared statement avoid the use of
-  ** lookaside memory.
-  */
-  if( prepFlags & SQLITE_PREPARE_PERSISTENT ){
-    sParse.disableLookaside++;
-    DisableLookaside;
-  }
-  sParse.disableVtab = (prepFlags & SQLITE_PREPARE_NO_VTAB)!=0;
-
-  /* Check to verify that it is possible to get a read lock on all
-  ** database schemas.  The inability to get a read lock indicates that
-  ** some other database connection is holding a write-lock, which in
-  ** turn means that the other connection has made uncommitted changes
-  ** to the schema.
-  **
-  ** Were we to proceed and prepare the statement against the uncommitted
-  ** schema changes and if those schema changes are subsequently rolled
-  ** back and different changes are made in their place, then when this
-  ** prepared statement goes to run the schema cookie would fail to detect
-  ** the schema change.  Disaster would follow.
-  **
-  ** This thread is currently holding mutexes on all Btrees (because
-  ** of the tdsqlite3BtreeEnterAll() in tdsqlite3LockAndPrepare()) so it
-  ** is not possible for another thread to start a new schema change
-  ** while this routine is running.  Hence, we do not need to hold 
-  ** locks on the schema, we just need to make sure nobody else is 
-  ** holding them.
-  **
-  ** Note that setting READ_UNCOMMITTED overrides most lock detection,
-  ** but it does *not* override schema lock detection, so this all still
-  ** works even if READ_UNCOMMITTED is set.
-  */
-  if( !db->noSharedCache ){
-    for(i=0; i<db->nDb; i++) {
-      Btree *pBt = db->aDb[i].pBt;
-      if( pBt ){
-        assert( tdsqlite3BtreeHoldsMutex(pBt) );
-        rc = tdsqlite3BtreeSchemaLocked(pBt);
-        if( rc ){
-          const char *zDb = db->aDb[i].zDbSName;
-          tdsqlite3ErrorWithMsg(db, rc, "database schema is locked: %s", zDb);
-          testcase( db->flags & SQLITE_ReadUncommit );
-          goto end_prepare;
-        }
-      }
-    }
-  }
-
-  tdsqlite3VtabUnlockList(db);
-
-  sParse.db = db;
-  if( nBytes>=0 && (nBytes==0 || zSql[nBytes-1]!=0) ){
-    char *zSqlCopy;
-    int mxLen = db->aLimit[SQLITE_LIMIT_SQL_LENGTH];
-    testcase( nBytes==mxLen );
-    testcase( nBytes==mxLen+1 );
-    if( nBytes>mxLen ){
-      tdsqlite3ErrorWithMsg(db, SQLITE_TOOBIG, "statement too long");
-      rc = tdsqlite3ApiExit(db, SQLITE_TOOBIG);
-      goto end_prepare;
-    }
-    zSqlCopy = tdsqlite3DbStrNDup(db, zSql, nBytes);
-    if( zSqlCopy ){
-      tdsqlite3RunParser(&sParse, zSqlCopy, &zErrMsg);
-      sParse.zTail = &zSql[sParse.zTail-zSqlCopy];
-      tdsqlite3DbFree(db, zSqlCopy);
-    }else{
-      sParse.zTail = &zSql[nBytes];
-    }
-  }else{
-    tdsqlite3RunParser(&sParse, zSql, &zErrMsg);
-  }
-  assert( 0==sParse.nQueryLoop );
-
-  if( sParse.rc==SQLITE_DONE ){
-    sParse.rc = SQLITE_OK;
-  }
-  if( sParse.checkSchema ){
-    schemaIsValid(&sParse);
-  }
-  if( pzTail ){
-    *pzTail = sParse.zTail;
-  }
-
-  if( db->init.busy==0 ){
-    tdsqlite3VdbeSetSql(sParse.pVdbe, zSql, (int)(sParse.zTail-zSql), prepFlags);
-  }
-  if( db->mallocFailed ){
-    sParse.rc = SQLITE_NOMEM_BKPT;
-  }
-  rc = sParse.rc;
-  if( rc!=SQLITE_OK ){
-    if( sParse.pVdbe ) tdsqlite3VdbeFinalize(sParse.pVdbe);
-    assert(!(*ppStmt));
-  }else{
-    *ppStmt = (tdsqlite3_stmt*)sParse.pVdbe;
-  }
-
-  if( zErrMsg ){
-    tdsqlite3ErrorWithMsg(db, rc, "%s", zErrMsg);
-    tdsqlite3DbFree(db, zErrMsg);
-  }else{
-    tdsqlite3Error(db, rc);
-  }
-
-  /* Delete any TriggerPrg structures allocated while parsing this statement. */
-  while( sParse.pTriggerPrg ){
-    TriggerPrg *pT = sParse.pTriggerPrg;
-    sParse.pTriggerPrg = pT->pNext;
-    tdsqlite3DbFree(db, pT);
-  }
-
-end_prepare:
-
-  tdsqlite3ParserReset(&sParse);
-  return rc;
-}
-static int tdsqlite3LockAndPrepare(
-  tdsqlite3 *db,              /* Database handle. */
-  const char *zSql,         /* UTF-8 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  u32 prepFlags,            /* Zero or more SQLITE_PREPARE_* flags */
-  Vdbe *pOld,               /* VM being reprepared */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const char **pzTail       /* OUT: End of parsed string */
-){
-  int rc;
-  int cnt = 0;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( ppStmt==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  *ppStmt = 0;
-  if( !tdsqlite3SafetyCheckOk(db)||zSql==0 ){
-    return SQLITE_MISUSE_BKPT;
-  }
-  tdsqlite3_mutex_enter(db->mutex);
-  tdsqlite3BtreeEnterAll(db);
-  do{
-    /* Make multiple attempts to compile the SQL, until it either succeeds
-    ** or encounters a permanent error.  A schema problem after one schema
-    ** reset is considered a permanent error. */
-    rc = tdsqlite3Prepare(db, zSql, nBytes, prepFlags, pOld, ppStmt, pzTail);
-    assert( rc==SQLITE_OK || *ppStmt==0 );
-  }while( rc==SQLITE_ERROR_RETRY
-       || (rc==SQLITE_SCHEMA && (tdsqlite3ResetOneSchema(db,-1), cnt++)==0) );
-  tdsqlite3BtreeLeaveAll(db);
-  rc = tdsqlite3ApiExit(db, rc);
-  assert( (rc&db->errMask)==rc );
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-
-/*
-** Rerun the compilation of a statement after a schema change.
-**
-** If the statement is successfully recompiled, return SQLITE_OK. Otherwise,
-** if the statement cannot be recompiled because another connection has
-** locked the tdsqlite3_master table, return SQLITE_LOCKED. If any other error
-** occurs, return SQLITE_SCHEMA.
-*/
-SQLITE_PRIVATE int tdsqlite3Reprepare(Vdbe *p){
-  int rc;
-  tdsqlite3_stmt *pNew;
-  const char *zSql;
-  tdsqlite3 *db;
-  u8 prepFlags;
-
-  assert( tdsqlite3_mutex_held(tdsqlite3VdbeDb(p)->mutex) );
-  zSql = tdsqlite3_sql((tdsqlite3_stmt *)p);
-  assert( zSql!=0 );  /* Reprepare only called for prepare_v2() statements */
-  db = tdsqlite3VdbeDb(p);
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  prepFlags = tdsqlite3VdbePrepareFlags(p);
-  rc = tdsqlite3LockAndPrepare(db, zSql, -1, prepFlags, p, &pNew, 0);
-  if( rc ){
-    if( rc==SQLITE_NOMEM ){
-      tdsqlite3OomFault(db);
-    }
-    assert( pNew==0 );
-    return rc;
-  }else{
-    assert( pNew!=0 );
-  }
-  tdsqlite3VdbeSwap((Vdbe*)pNew, p);
-  tdsqlite3TransferBindings(pNew, (tdsqlite3_stmt*)p);
-  tdsqlite3VdbeResetStepResult((Vdbe*)pNew);
-  tdsqlite3VdbeFinalize((Vdbe*)pNew);
-  return SQLITE_OK;
-}
-
-
-/*
-** Two versions of the official API.  Legacy and new use.  In the legacy
-** version, the original SQL text is not saved in the prepared statement
-** and so if a schema change occurs, SQLITE_SCHEMA is returned by
-** tdsqlite3_step().  In the new version, the original SQL text is retained
-** and the statement is automatically recompiled if an schema change
-** occurs.
-*/
-SQLITE_API int tdsqlite3_prepare(
-  tdsqlite3 *db,              /* Database handle. */
-  const char *zSql,         /* UTF-8 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const char **pzTail       /* OUT: End of parsed string */
-){
-  int rc;
-  rc = tdsqlite3LockAndPrepare(db,zSql,nBytes,0,0,ppStmt,pzTail);
-  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );  /* VERIFY: F13021 */
-  return rc;
-}
-SQLITE_API int tdsqlite3_prepare_v2(
-  tdsqlite3 *db,              /* Database handle. */
-  const char *zSql,         /* UTF-8 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const char **pzTail       /* OUT: End of parsed string */
-){
-  int rc;
-  /* EVIDENCE-OF: R-37923-12173 The tdsqlite3_prepare_v2() interface works
-  ** exactly the same as tdsqlite3_prepare_v3() with a zero prepFlags
-  ** parameter.
-  **
-  ** Proof in that the 5th parameter to tdsqlite3LockAndPrepare is 0 */
-  rc = tdsqlite3LockAndPrepare(db,zSql,nBytes,SQLITE_PREPARE_SAVESQL,0,
-                             ppStmt,pzTail);
-  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );
-  return rc;
-}
-SQLITE_API int tdsqlite3_prepare_v3(
-  tdsqlite3 *db,              /* Database handle. */
-  const char *zSql,         /* UTF-8 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  unsigned int prepFlags,   /* Zero or more SQLITE_PREPARE_* flags */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const char **pzTail       /* OUT: End of parsed string */
-){
-  int rc;
-  /* EVIDENCE-OF: R-56861-42673 tdsqlite3_prepare_v3() differs from
-  ** tdsqlite3_prepare_v2() only in having the extra prepFlags parameter,
-  ** which is a bit array consisting of zero or more of the
-  ** SQLITE_PREPARE_* flags.
-  **
-  ** Proof by comparison to the implementation of tdsqlite3_prepare_v2()
-  ** directly above. */
-  rc = tdsqlite3LockAndPrepare(db,zSql,nBytes,
-                 SQLITE_PREPARE_SAVESQL|(prepFlags&SQLITE_PREPARE_MASK),
-                 0,ppStmt,pzTail);
-  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );
-  return rc;
-}
-
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** Compile the UTF-16 encoded SQL statement zSql into a statement handle.
-*/
-static int tdsqlite3Prepare16(
-  tdsqlite3 *db,              /* Database handle. */ 
-  const void *zSql,         /* UTF-16 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  u32 prepFlags,            /* Zero or more SQLITE_PREPARE_* flags */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const void **pzTail       /* OUT: End of parsed string */
-){
-  /* This function currently works by first transforming the UTF-16
-  ** encoded string to UTF-8, then invoking tdsqlite3_prepare(). The
-  ** tricky bit is figuring out the pointer to return in *pzTail.
-  */
-  char *zSql8;
-  const char *zTail8 = 0;
-  int rc = SQLITE_OK;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( ppStmt==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  *ppStmt = 0;
-  if( !tdsqlite3SafetyCheckOk(db)||zSql==0 ){
-    return SQLITE_MISUSE_BKPT;
-  }
-  if( nBytes>=0 ){
-    int sz;
-    const char *z = (const char*)zSql;
-    for(sz=0; sz<nBytes && (z[sz]!=0 || z[sz+1]!=0); sz += 2){}
-    nBytes = sz;
-  }
-  tdsqlite3_mutex_enter(db->mutex);
-  zSql8 = tdsqlite3Utf16to8(db, zSql, nBytes, SQLITE_UTF16NATIVE);
-  if( zSql8 ){
-    rc = tdsqlite3LockAndPrepare(db, zSql8, -1, prepFlags, 0, ppStmt, &zTail8);
-  }
-
-  if( zTail8 && pzTail ){
-    /* If tdsqlite3_prepare returns a tail pointer, we calculate the
-    ** equivalent pointer into the UTF-16 string by counting the unicode
-    ** characters between zSql8 and zTail8, and then returning a pointer
-    ** the same number of characters into the UTF-16 string.
-    */
-    int chars_parsed = tdsqlite3Utf8CharLen(zSql8, (int)(zTail8-zSql8));
-    *pzTail = (u8 *)zSql + tdsqlite3Utf16ByteLen(zSql, chars_parsed);
-  }
-  tdsqlite3DbFree(db, zSql8); 
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** Two versions of the official API.  Legacy and new use.  In the legacy
-** version, the original SQL text is not saved in the prepared statement
-** and so if a schema change occurs, SQLITE_SCHEMA is returned by
-** tdsqlite3_step().  In the new version, the original SQL text is retained
-** and the statement is automatically recompiled if an schema change
-** occurs.
-*/
-SQLITE_API int tdsqlite3_prepare16(
-  tdsqlite3 *db,              /* Database handle. */ 
-  const void *zSql,         /* UTF-16 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const void **pzTail       /* OUT: End of parsed string */
-){
-  int rc;
-  rc = tdsqlite3Prepare16(db,zSql,nBytes,0,ppStmt,pzTail);
-  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );  /* VERIFY: F13021 */
-  return rc;
-}
-SQLITE_API int tdsqlite3_prepare16_v2(
-  tdsqlite3 *db,              /* Database handle. */ 
-  const void *zSql,         /* UTF-16 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const void **pzTail       /* OUT: End of parsed string */
-){
-  int rc;
-  rc = tdsqlite3Prepare16(db,zSql,nBytes,SQLITE_PREPARE_SAVESQL,ppStmt,pzTail);
-  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );  /* VERIFY: F13021 */
-  return rc;
-}
-SQLITE_API int tdsqlite3_prepare16_v3(
-  tdsqlite3 *db,              /* Database handle. */ 
-  const void *zSql,         /* UTF-16 encoded SQL statement. */
-  int nBytes,               /* Length of zSql in bytes. */
-  unsigned int prepFlags,   /* Zero or more SQLITE_PREPARE_* flags */
-  tdsqlite3_stmt **ppStmt,    /* OUT: A pointer to the prepared statement */
-  const void **pzTail       /* OUT: End of parsed string */
-){
-  int rc;
-  rc = tdsqlite3Prepare16(db,zSql,nBytes,
-         SQLITE_PREPARE_SAVESQL|(prepFlags&SQLITE_PREPARE_MASK),
-         ppStmt,pzTail);
-  assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 );  /* VERIFY: F13021 */
-  return rc;
-}
-
-#endif /* SQLITE_OMIT_UTF16 */
-
-/************** End of prepare.c *********************************************/
-/************** Begin file select.c ******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains C code routines that are called by the parser
-** to handle SELECT statements in SQLite.
-*/
-/* #include "sqliteInt.h" */
-
-/*
-** Trace output macros
-*/
-#if SELECTTRACE_ENABLED
-/***/ int tdsqlite3SelectTrace = 0;
-# define SELECTTRACE(K,P,S,X)  \
-  if(tdsqlite3SelectTrace&(K))   \
-    tdsqlite3DebugPrintf("%u/%d/%p: ",(S)->selId,(P)->addrExplain,(S)),\
-    tdsqlite3DebugPrintf X
-#else
-# define SELECTTRACE(K,P,S,X)
-#endif
-
-
-/*
-** An instance of the following object is used to record information about
-** how to process the DISTINCT keyword, to simplify passing that information
-** into the selectInnerLoop() routine.
-*/
-typedef struct DistinctCtx DistinctCtx;
-struct DistinctCtx {
-  u8 isTnct;      /* True if the DISTINCT keyword is present */
-  u8 eTnctType;   /* One of the WHERE_DISTINCT_* operators */
-  int tabTnct;    /* Ephemeral table used for DISTINCT processing */
-  int addrTnct;   /* Address of OP_OpenEphemeral opcode for tabTnct */
-};
-
-/*
-** An instance of the following object is used to record information about
-** the ORDER BY (or GROUP BY) clause of query is being coded.
-**
-** The aDefer[] array is used by the sorter-references optimization. For
-** example, assuming there is no index that can be used for the ORDER BY,
-** for the query:
-**
-**     SELECT a, bigblob FROM t1 ORDER BY a LIMIT 10;
-**
-** it may be more efficient to add just the "a" values to the sorter, and
-** retrieve the associated "bigblob" values directly from table t1 as the
-** 10 smallest "a" values are extracted from the sorter.
-**
-** When the sorter-reference optimization is used, there is one entry in the
-** aDefer[] array for each database table that may be read as values are
-** extracted from the sorter.
-*/
-typedef struct SortCtx SortCtx;
-struct SortCtx {
-  ExprList *pOrderBy;   /* The ORDER BY (or GROUP BY clause) */
-  int nOBSat;           /* Number of ORDER BY terms satisfied by indices */
-  int iECursor;         /* Cursor number for the sorter */
-  int regReturn;        /* Register holding block-output return address */
-  int labelBkOut;       /* Start label for the block-output subroutine */
-  int addrSortIndex;    /* Address of the OP_SorterOpen or OP_OpenEphemeral */
-  int labelDone;        /* Jump here when done, ex: LIMIT reached */
-  int labelOBLopt;      /* Jump here when sorter is full */
-  u8 sortFlags;         /* Zero or more SORTFLAG_* bits */
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-  u8 nDefer;            /* Number of valid entries in aDefer[] */
-  struct DeferredCsr {
-    Table *pTab;        /* Table definition */
-    int iCsr;           /* Cursor number for table */
-    int nKey;           /* Number of PK columns for table pTab (>=1) */
-  } aDefer[4];
-#endif
-  struct RowLoadInfo *pDeferredRowLoad;  /* Deferred row loading info or NULL */
-};
-#define SORTFLAG_UseSorter  0x01   /* Use SorterOpen instead of OpenEphemeral */
-
-/*
-** Delete all the content of a Select structure.  Deallocate the structure
-** itself depending on the value of bFree
-**
-** If bFree==1, call tdsqlite3DbFree() on the p object.
-** If bFree==0, Leave the first Select object unfreed
-*/
-static void clearSelect(tdsqlite3 *db, Select *p, int bFree){
-  while( p ){
-    Select *pPrior = p->pPrior;
-    tdsqlite3ExprListDelete(db, p->pEList);
-    tdsqlite3SrcListDelete(db, p->pSrc);
-    tdsqlite3ExprDelete(db, p->pWhere);
-    tdsqlite3ExprListDelete(db, p->pGroupBy);
-    tdsqlite3ExprDelete(db, p->pHaving);
-    tdsqlite3ExprListDelete(db, p->pOrderBy);
-    tdsqlite3ExprDelete(db, p->pLimit);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    if( OK_IF_ALWAYS_TRUE(p->pWinDefn) ){
-      tdsqlite3WindowListDelete(db, p->pWinDefn);
-    }
-    assert( p->pWin==0 );
-#endif
-    if( OK_IF_ALWAYS_TRUE(p->pWith) ) tdsqlite3WithDelete(db, p->pWith);
-    if( bFree ) tdsqlite3DbFreeNN(db, p);
-    p = pPrior;
-    bFree = 1;
-  }
-}
-
-/*
-** Initialize a SelectDest structure.
-*/
-SQLITE_PRIVATE void tdsqlite3SelectDestInit(SelectDest *pDest, int eDest, int iParm){
-  pDest->eDest = (u8)eDest;
-  pDest->iSDParm = iParm;
-  pDest->zAffSdst = 0;
-  pDest->iSdst = 0;
-  pDest->nSdst = 0;
-}
-
-
-/*
-** Allocate a new Select structure and return a pointer to that
-** structure.
-*/
-SQLITE_PRIVATE Select *tdsqlite3SelectNew(
-  Parse *pParse,        /* Parsing context */
-  ExprList *pEList,     /* which columns to include in the result */
-  SrcList *pSrc,        /* the FROM clause -- which tables to scan */
-  Expr *pWhere,         /* the WHERE clause */
-  ExprList *pGroupBy,   /* the GROUP BY clause */
-  Expr *pHaving,        /* the HAVING clause */
-  ExprList *pOrderBy,   /* the ORDER BY clause */
-  u32 selFlags,         /* Flag parameters, such as SF_Distinct */
-  Expr *pLimit          /* LIMIT value.  NULL means not used */
-){
-  Select *pNew;
-  Select standin;
-  pNew = tdsqlite3DbMallocRawNN(pParse->db, sizeof(*pNew) );
-  if( pNew==0 ){
-    assert( pParse->db->mallocFailed );
-    pNew = &standin;
-  }
-  if( pEList==0 ){
-    pEList = tdsqlite3ExprListAppend(pParse, 0,
-                                   tdsqlite3Expr(pParse->db,TK_ASTERISK,0));
-  }
-  pNew->pEList = pEList;
-  pNew->op = TK_SELECT;
-  pNew->selFlags = selFlags;
-  pNew->iLimit = 0;
-  pNew->iOffset = 0;
-  pNew->selId = ++pParse->nSelect;
-  pNew->addrOpenEphm[0] = -1;
-  pNew->addrOpenEphm[1] = -1;
-  pNew->nSelectRow = 0;
-  if( pSrc==0 ) pSrc = tdsqlite3DbMallocZero(pParse->db, sizeof(*pSrc));
-  pNew->pSrc = pSrc;
-  pNew->pWhere = pWhere;
-  pNew->pGroupBy = pGroupBy;
-  pNew->pHaving = pHaving;
-  pNew->pOrderBy = pOrderBy;
-  pNew->pPrior = 0;
-  pNew->pNext = 0;
-  pNew->pLimit = pLimit;
-  pNew->pWith = 0;
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  pNew->pWin = 0;
-  pNew->pWinDefn = 0;
-#endif
-  if( pParse->db->mallocFailed ) {
-    clearSelect(pParse->db, pNew, pNew!=&standin);
-    pNew = 0;
-  }else{
-    assert( pNew->pSrc!=0 || pParse->nErr>0 );
-  }
-  assert( pNew!=&standin );
-  return pNew;
-}
-
-
-/*
-** Delete the given Select structure and all of its substructures.
-*/
-SQLITE_PRIVATE void tdsqlite3SelectDelete(tdsqlite3 *db, Select *p){
-  if( OK_IF_ALWAYS_TRUE(p) ) clearSelect(db, p, 1);
-}
-
-/*
-** Delete all the substructure for p, but keep p allocated.  Redefine
-** p to be a single SELECT where every column of the result set has a
-** value of NULL.
-*/
-SQLITE_PRIVATE void tdsqlite3SelectReset(Parse *pParse, Select *p){
-  if( ALWAYS(p) ){
-    clearSelect(pParse->db, p, 0);
-    memset(&p->iLimit, 0, sizeof(Select) - offsetof(Select,iLimit));
-    p->pEList = tdsqlite3ExprListAppend(pParse, 0,
-                     tdsqlite3ExprAlloc(pParse->db,TK_NULL,0,0));
-    p->pSrc = tdsqlite3DbMallocZero(pParse->db, sizeof(SrcList));
-  }
-}
-
-/*
-** Return a pointer to the right-most SELECT statement in a compound.
-*/
-static Select *findRightmost(Select *p){
-  while( p->pNext ) p = p->pNext;
-  return p;
-}
-
-/*
-** Given 1 to 3 identifiers preceding the JOIN keyword, determine the
-** type of join.  Return an integer constant that expresses that type
-** in terms of the following bit values:
-**
-**     JT_INNER
-**     JT_CROSS
-**     JT_OUTER
-**     JT_NATURAL
-**     JT_LEFT
-**     JT_RIGHT
-**
-** A full outer join is the combination of JT_LEFT and JT_RIGHT.
-**
-** If an illegal or unsupported join type is seen, then still return
-** a join type, but put an error in the pParse structure.
-*/
-SQLITE_PRIVATE int tdsqlite3JoinType(Parse *pParse, Token *pA, Token *pB, Token *pC){
-  int jointype = 0;
-  Token *apAll[3];
-  Token *p;
-                             /*   0123456789 123456789 123456789 123 */
-  static const char zKeyText[] = "naturaleftouterightfullinnercross";
-  static const struct {
-    u8 i;        /* Beginning of keyword text in zKeyText[] */
-    u8 nChar;    /* Length of the keyword in characters */
-    u8 code;     /* Join type mask */
-  } aKeyword[] = {
-    /* natural */ { 0,  7, JT_NATURAL                },
-    /* left    */ { 6,  4, JT_LEFT|JT_OUTER          },
-    /* outer   */ { 10, 5, JT_OUTER                  },
-    /* right   */ { 14, 5, JT_RIGHT|JT_OUTER         },
-    /* full    */ { 19, 4, JT_LEFT|JT_RIGHT|JT_OUTER },
-    /* inner   */ { 23, 5, JT_INNER                  },
-    /* cross   */ { 28, 5, JT_INNER|JT_CROSS         },
-  };
-  int i, j;
-  apAll[0] = pA;
-  apAll[1] = pB;
-  apAll[2] = pC;
-  for(i=0; i<3 && apAll[i]; i++){
-    p = apAll[i];
-    for(j=0; j<ArraySize(aKeyword); j++){
-      if( p->n==aKeyword[j].nChar 
-          && tdsqlite3StrNICmp((char*)p->z, &zKeyText[aKeyword[j].i], p->n)==0 ){
-        jointype |= aKeyword[j].code;
-        break;
-      }
-    }
-    testcase( j==0 || j==1 || j==2 || j==3 || j==4 || j==5 || j==6 );
-    if( j>=ArraySize(aKeyword) ){
-      jointype |= JT_ERROR;
-      break;
-    }
-  }
-  if(
-     (jointype & (JT_INNER|JT_OUTER))==(JT_INNER|JT_OUTER) ||
-     (jointype & JT_ERROR)!=0
-  ){
-    const char *zSp = " ";
-    assert( pB!=0 );
-    if( pC==0 ){ zSp++; }
-    tdsqlite3ErrorMsg(pParse, "unknown or unsupported join type: "
-       "%T %T%s%T", pA, pB, zSp, pC);
-    jointype = JT_INNER;
-  }else if( (jointype & JT_OUTER)!=0 
-         && (jointype & (JT_LEFT|JT_RIGHT))!=JT_LEFT ){
-    tdsqlite3ErrorMsg(pParse, 
-      "RIGHT and FULL OUTER JOINs are not currently supported");
-    jointype = JT_INNER;
-  }
-  return jointype;
-}
-
-/*
-** Return the index of a column in a table.  Return -1 if the column
-** is not contained in the table.
-*/
-static int columnIndex(Table *pTab, const char *zCol){
-  int i;
-  for(i=0; i<pTab->nCol; i++){
-    if( tdsqlite3StrICmp(pTab->aCol[i].zName, zCol)==0 ) return i;
-  }
-  return -1;
-}
-
-/*
-** Search the first N tables in pSrc, from left to right, looking for a
-** table that has a column named zCol.  
-**
-** When found, set *piTab and *piCol to the table index and column index
-** of the matching column and return TRUE.
-**
-** If not found, return FALSE.
-*/
-static int tableAndColumnIndex(
-  SrcList *pSrc,       /* Array of tables to search */
-  int N,               /* Number of tables in pSrc->a[] to search */
-  const char *zCol,    /* Name of the column we are looking for */
-  int *piTab,          /* Write index of pSrc->a[] here */
-  int *piCol,          /* Write index of pSrc->a[*piTab].pTab->aCol[] here */
-  int bIgnoreHidden    /* True to ignore hidden columns */
-){
-  int i;               /* For looping over tables in pSrc */
-  int iCol;            /* Index of column matching zCol */
-
-  assert( (piTab==0)==(piCol==0) );  /* Both or neither are NULL */
-  for(i=0; i<N; i++){
-    iCol = columnIndex(pSrc->a[i].pTab, zCol);
-    if( iCol>=0 
-     && (bIgnoreHidden==0 || IsHiddenColumn(&pSrc->a[i].pTab->aCol[iCol])==0)
-    ){
-      if( piTab ){
-        *piTab = i;
-        *piCol = iCol;
-      }
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** This function is used to add terms implied by JOIN syntax to the
-** WHERE clause expression of a SELECT statement. The new term, which
-** is ANDed with the existing WHERE clause, is of the form:
-**
-**    (tab1.col1 = tab2.col2)
-**
-** where tab1 is the iSrc'th table in SrcList pSrc and tab2 is the 
-** (iSrc+1)'th. Column col1 is column iColLeft of tab1, and col2 is
-** column iColRight of tab2.
-*/
-static void addWhereTerm(
-  Parse *pParse,                  /* Parsing context */
-  SrcList *pSrc,                  /* List of tables in FROM clause */
-  int iLeft,                      /* Index of first table to join in pSrc */
-  int iColLeft,                   /* Index of column in first table */
-  int iRight,                     /* Index of second table in pSrc */
-  int iColRight,                  /* Index of column in second table */
-  int isOuterJoin,                /* True if this is an OUTER join */
-  Expr **ppWhere                  /* IN/OUT: The WHERE clause to add to */
-){
-  tdsqlite3 *db = pParse->db;
-  Expr *pE1;
-  Expr *pE2;
-  Expr *pEq;
-
-  assert( iLeft<iRight );
-  assert( pSrc->nSrc>iRight );
-  assert( pSrc->a[iLeft].pTab );
-  assert( pSrc->a[iRight].pTab );
-
-  pE1 = tdsqlite3CreateColumnExpr(db, pSrc, iLeft, iColLeft);
-  pE2 = tdsqlite3CreateColumnExpr(db, pSrc, iRight, iColRight);
-
-  pEq = tdsqlite3PExpr(pParse, TK_EQ, pE1, pE2);
-  if( pEq && isOuterJoin ){
-    ExprSetProperty(pEq, EP_FromJoin);
-    assert( !ExprHasProperty(pEq, EP_TokenOnly|EP_Reduced) );
-    ExprSetVVAProperty(pEq, EP_NoReduce);
-    pEq->iRightJoinTable = (i16)pE2->iTable;
-  }
-  *ppWhere = tdsqlite3ExprAnd(pParse, *ppWhere, pEq);
-}
-
-/*
-** Set the EP_FromJoin property on all terms of the given expression.
-** And set the Expr.iRightJoinTable to iTable for every term in the
-** expression.
-**
-** The EP_FromJoin property is used on terms of an expression to tell
-** the LEFT OUTER JOIN processing logic that this term is part of the
-** join restriction specified in the ON or USING clause and not a part
-** of the more general WHERE clause.  These terms are moved over to the
-** WHERE clause during join processing but we need to remember that they
-** originated in the ON or USING clause.
-**
-** The Expr.iRightJoinTable tells the WHERE clause processing that the
-** expression depends on table iRightJoinTable even if that table is not
-** explicitly mentioned in the expression.  That information is needed
-** for cases like this:
-**
-**    SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.b AND t1.x=5
-**
-** The where clause needs to defer the handling of the t1.x=5
-** term until after the t2 loop of the join.  In that way, a
-** NULL t2 row will be inserted whenever t1.x!=5.  If we do not
-** defer the handling of t1.x=5, it will be processed immediately
-** after the t1 loop and rows with t1.x!=5 will never appear in
-** the output, which is incorrect.
-*/
-SQLITE_PRIVATE void tdsqlite3SetJoinExpr(Expr *p, int iTable){
-  while( p ){
-    ExprSetProperty(p, EP_FromJoin);
-    assert( !ExprHasProperty(p, EP_TokenOnly|EP_Reduced) );
-    ExprSetVVAProperty(p, EP_NoReduce);
-    p->iRightJoinTable = (i16)iTable;
-    if( p->op==TK_FUNCTION && p->x.pList ){
-      int i;
-      for(i=0; i<p->x.pList->nExpr; i++){
-        tdsqlite3SetJoinExpr(p->x.pList->a[i].pExpr, iTable);
-      }
-    }
-    tdsqlite3SetJoinExpr(p->pLeft, iTable);
-    p = p->pRight;
-  } 
-}
-
-/* Undo the work of tdsqlite3SetJoinExpr(). In the expression p, convert every
-** term that is marked with EP_FromJoin and iRightJoinTable==iTable into
-** an ordinary term that omits the EP_FromJoin mark.
-**
-** This happens when a LEFT JOIN is simplified into an ordinary JOIN.
-*/
-static void unsetJoinExpr(Expr *p, int iTable){
-  while( p ){
-    if( ExprHasProperty(p, EP_FromJoin)
-     && (iTable<0 || p->iRightJoinTable==iTable) ){
-      ExprClearProperty(p, EP_FromJoin);
-    }
-    if( p->op==TK_FUNCTION && p->x.pList ){
-      int i;
-      for(i=0; i<p->x.pList->nExpr; i++){
-        unsetJoinExpr(p->x.pList->a[i].pExpr, iTable);
-      }
-    }
-    unsetJoinExpr(p->pLeft, iTable);
-    p = p->pRight;
-  } 
-}
-
-/*
-** This routine processes the join information for a SELECT statement.
-** ON and USING clauses are converted into extra terms of the WHERE clause.
-** NATURAL joins also create extra WHERE clause terms.
-**
-** The terms of a FROM clause are contained in the Select.pSrc structure.
-** The left most table is the first entry in Select.pSrc.  The right-most
-** table is the last entry.  The join operator is held in the entry to
-** the left.  Thus entry 0 contains the join operator for the join between
-** entries 0 and 1.  Any ON or USING clauses associated with the join are
-** also attached to the left entry.
-**
-** This routine returns the number of errors encountered.
-*/
-static int sqliteProcessJoin(Parse *pParse, Select *p){
-  SrcList *pSrc;                  /* All tables in the FROM clause */
-  int i, j;                       /* Loop counters */
-  struct SrcList_item *pLeft;     /* Left table being joined */
-  struct SrcList_item *pRight;    /* Right table being joined */
-
-  pSrc = p->pSrc;
-  pLeft = &pSrc->a[0];
-  pRight = &pLeft[1];
-  for(i=0; i<pSrc->nSrc-1; i++, pRight++, pLeft++){
-    Table *pRightTab = pRight->pTab;
-    int isOuter;
-
-    if( NEVER(pLeft->pTab==0 || pRightTab==0) ) continue;
-    isOuter = (pRight->fg.jointype & JT_OUTER)!=0;
-
-    /* When the NATURAL keyword is present, add WHERE clause terms for
-    ** every column that the two tables have in common.
-    */
-    if( pRight->fg.jointype & JT_NATURAL ){
-      if( pRight->pOn || pRight->pUsing ){
-        tdsqlite3ErrorMsg(pParse, "a NATURAL join may not have "
-           "an ON or USING clause", 0);
-        return 1;
-      }
-      for(j=0; j<pRightTab->nCol; j++){
-        char *zName;   /* Name of column in the right table */
-        int iLeft;     /* Matching left table */
-        int iLeftCol;  /* Matching column in the left table */
-
-        if( IsHiddenColumn(&pRightTab->aCol[j]) ) continue;
-        zName = pRightTab->aCol[j].zName;
-        if( tableAndColumnIndex(pSrc, i+1, zName, &iLeft, &iLeftCol, 1) ){
-          addWhereTerm(pParse, pSrc, iLeft, iLeftCol, i+1, j,
-                isOuter, &p->pWhere);
-        }
-      }
-    }
-
-    /* Disallow both ON and USING clauses in the same join
-    */
-    if( pRight->pOn && pRight->pUsing ){
-      tdsqlite3ErrorMsg(pParse, "cannot have both ON and USING "
-        "clauses in the same join");
-      return 1;
-    }
-
-    /* Add the ON clause to the end of the WHERE clause, connected by
-    ** an AND operator.
-    */
-    if( pRight->pOn ){
-      if( isOuter ) tdsqlite3SetJoinExpr(pRight->pOn, pRight->iCursor);
-      p->pWhere = tdsqlite3ExprAnd(pParse, p->pWhere, pRight->pOn);
-      pRight->pOn = 0;
-    }
-
-    /* Create extra terms on the WHERE clause for each column named
-    ** in the USING clause.  Example: If the two tables to be joined are 
-    ** A and B and the USING clause names X, Y, and Z, then add this
-    ** to the WHERE clause:    A.X=B.X AND A.Y=B.Y AND A.Z=B.Z
-    ** Report an error if any column mentioned in the USING clause is
-    ** not contained in both tables to be joined.
-    */
-    if( pRight->pUsing ){
-      IdList *pList = pRight->pUsing;
-      for(j=0; j<pList->nId; j++){
-        char *zName;     /* Name of the term in the USING clause */
-        int iLeft;       /* Table on the left with matching column name */
-        int iLeftCol;    /* Column number of matching column on the left */
-        int iRightCol;   /* Column number of matching column on the right */
-
-        zName = pList->a[j].zName;
-        iRightCol = columnIndex(pRightTab, zName);
-        if( iRightCol<0
-         || !tableAndColumnIndex(pSrc, i+1, zName, &iLeft, &iLeftCol, 0)
-        ){
-          tdsqlite3ErrorMsg(pParse, "cannot join using column %s - column "
-            "not present in both tables", zName);
-          return 1;
-        }
-        addWhereTerm(pParse, pSrc, iLeft, iLeftCol, i+1, iRightCol,
-                     isOuter, &p->pWhere);
-      }
-    }
-  }
-  return 0;
-}
-
-/*
-** An instance of this object holds information (beyond pParse and pSelect)
-** needed to load the next result row that is to be added to the sorter.
-*/
-typedef struct RowLoadInfo RowLoadInfo;
-struct RowLoadInfo {
-  int regResult;               /* Store results in array of registers here */
-  u8 ecelFlags;                /* Flag argument to ExprCodeExprList() */
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-  ExprList *pExtra;            /* Extra columns needed by sorter refs */
-  int regExtraResult;          /* Where to load the extra columns */
-#endif
-};
-
-/*
-** This routine does the work of loading query data into an array of
-** registers so that it can be added to the sorter.
-*/
-static void innerLoopLoadRow(
-  Parse *pParse,             /* Statement under construction */
-  Select *pSelect,           /* The query being coded */
-  RowLoadInfo *pInfo         /* Info needed to complete the row load */
-){
-  tdsqlite3ExprCodeExprList(pParse, pSelect->pEList, pInfo->regResult,
-                          0, pInfo->ecelFlags);
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-  if( pInfo->pExtra ){
-    tdsqlite3ExprCodeExprList(pParse, pInfo->pExtra, pInfo->regExtraResult, 0, 0);
-    tdsqlite3ExprListDelete(pParse->db, pInfo->pExtra);
-  }
-#endif
-}
-
-/*
-** Code the OP_MakeRecord instruction that generates the entry to be
-** added into the sorter.
-**
-** Return the register in which the result is stored.
-*/
-static int makeSorterRecord(
-  Parse *pParse,
-  SortCtx *pSort,
-  Select *pSelect,
-  int regBase,
-  int nBase
-){
-  int nOBSat = pSort->nOBSat;
-  Vdbe *v = pParse->pVdbe;
-  int regOut = ++pParse->nMem;
-  if( pSort->pDeferredRowLoad ){
-    innerLoopLoadRow(pParse, pSelect, pSort->pDeferredRowLoad);
-  }
-  tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regBase+nOBSat, nBase-nOBSat, regOut);
-  return regOut;
-}
-
-/*
-** Generate code that will push the record in registers regData
-** through regData+nData-1 onto the sorter.
-*/
-static void pushOntoSorter(
-  Parse *pParse,         /* Parser context */
-  SortCtx *pSort,        /* Information about the ORDER BY clause */
-  Select *pSelect,       /* The whole SELECT statement */
-  int regData,           /* First register holding data to be sorted */
-  int regOrigData,       /* First register holding data before packing */
-  int nData,             /* Number of elements in the regData data array */
-  int nPrefixReg         /* No. of reg prior to regData available for use */
-){
-  Vdbe *v = pParse->pVdbe;                         /* Stmt under construction */
-  int bSeq = ((pSort->sortFlags & SORTFLAG_UseSorter)==0);
-  int nExpr = pSort->pOrderBy->nExpr;              /* No. of ORDER BY terms */
-  int nBase = nExpr + bSeq + nData;                /* Fields in sorter record */
-  int regBase;                                     /* Regs for sorter record */
-  int regRecord = 0;                               /* Assembled sorter record */
-  int nOBSat = pSort->nOBSat;                      /* ORDER BY terms to skip */
-  int op;                            /* Opcode to add sorter record to sorter */
-  int iLimit;                        /* LIMIT counter */
-  int iSkip = 0;                     /* End of the sorter insert loop */
-
-  assert( bSeq==0 || bSeq==1 );
-
-  /* Three cases:
-  **   (1) The data to be sorted has already been packed into a Record
-  **       by a prior OP_MakeRecord.  In this case nData==1 and regData
-  **       will be completely unrelated to regOrigData.
-  **   (2) All output columns are included in the sort record.  In that
-  **       case regData==regOrigData.
-  **   (3) Some output columns are omitted from the sort record due to
-  **       the SQLITE_ENABLE_SORTER_REFERENCE optimization, or due to the
-  **       SQLITE_ECEL_OMITREF optimization, or due to the 
-  **       SortCtx.pDeferredRowLoad optimiation.  In any of these cases
-  **       regOrigData is 0 to prevent this routine from trying to copy
-  **       values that might not yet exist.
-  */
-  assert( nData==1 || regData==regOrigData || regOrigData==0 );
-
-  if( nPrefixReg ){
-    assert( nPrefixReg==nExpr+bSeq );
-    regBase = regData - nPrefixReg;
-  }else{
-    regBase = pParse->nMem + 1;
-    pParse->nMem += nBase;
-  }
-  assert( pSelect->iOffset==0 || pSelect->iLimit!=0 );
-  iLimit = pSelect->iOffset ? pSelect->iOffset+1 : pSelect->iLimit;
-  pSort->labelDone = tdsqlite3VdbeMakeLabel(pParse);
-  tdsqlite3ExprCodeExprList(pParse, pSort->pOrderBy, regBase, regOrigData,
-                          SQLITE_ECEL_DUP | (regOrigData? SQLITE_ECEL_REF : 0));
-  if( bSeq ){
-    tdsqlite3VdbeAddOp2(v, OP_Sequence, pSort->iECursor, regBase+nExpr);
-  }
-  if( nPrefixReg==0 && nData>0 ){
-    tdsqlite3ExprCodeMove(pParse, regData, regBase+nExpr+bSeq, nData);
-  }
-  if( nOBSat>0 ){
-    int regPrevKey;   /* The first nOBSat columns of the previous row */
-    int addrFirst;    /* Address of the OP_IfNot opcode */
-    int addrJmp;      /* Address of the OP_Jump opcode */
-    VdbeOp *pOp;      /* Opcode that opens the sorter */
-    int nKey;         /* Number of sorting key columns, including OP_Sequence */
-    KeyInfo *pKI;     /* Original KeyInfo on the sorter table */
-
-    regRecord = makeSorterRecord(pParse, pSort, pSelect, regBase, nBase);
-    regPrevKey = pParse->nMem+1;
-    pParse->nMem += pSort->nOBSat;
-    nKey = nExpr - pSort->nOBSat + bSeq;
-    if( bSeq ){
-      addrFirst = tdsqlite3VdbeAddOp1(v, OP_IfNot, regBase+nExpr); 
-    }else{
-      addrFirst = tdsqlite3VdbeAddOp1(v, OP_SequenceTest, pSort->iECursor);
-    }
-    VdbeCoverage(v);
-    tdsqlite3VdbeAddOp3(v, OP_Compare, regPrevKey, regBase, pSort->nOBSat);
-    pOp = tdsqlite3VdbeGetOp(v, pSort->addrSortIndex);
-    if( pParse->db->mallocFailed ) return;
-    pOp->p2 = nKey + nData;
-    pKI = pOp->p4.pKeyInfo;
-    memset(pKI->aSortFlags, 0, pKI->nKeyField); /* Makes OP_Jump testable */
-    tdsqlite3VdbeChangeP4(v, -1, (char*)pKI, P4_KEYINFO);
-    testcase( pKI->nAllField > pKI->nKeyField+2 );
-    pOp->p4.pKeyInfo = tdsqlite3KeyInfoFromExprList(pParse,pSort->pOrderBy,nOBSat,
-                                           pKI->nAllField-pKI->nKeyField-1);
-    pOp = 0; /* Ensure pOp not used after sqltie3VdbeAddOp3() */
-    addrJmp = tdsqlite3VdbeCurrentAddr(v);
-    tdsqlite3VdbeAddOp3(v, OP_Jump, addrJmp+1, 0, addrJmp+1); VdbeCoverage(v);
-    pSort->labelBkOut = tdsqlite3VdbeMakeLabel(pParse);
-    pSort->regReturn = ++pParse->nMem;
-    tdsqlite3VdbeAddOp2(v, OP_Gosub, pSort->regReturn, pSort->labelBkOut);
-    tdsqlite3VdbeAddOp1(v, OP_ResetSorter, pSort->iECursor);
-    if( iLimit ){
-      tdsqlite3VdbeAddOp2(v, OP_IfNot, iLimit, pSort->labelDone);
-      VdbeCoverage(v);
-    }
-    tdsqlite3VdbeJumpHere(v, addrFirst);
-    tdsqlite3ExprCodeMove(pParse, regBase, regPrevKey, pSort->nOBSat);
-    tdsqlite3VdbeJumpHere(v, addrJmp);
-  }
-  if( iLimit ){
-    /* At this point the values for the new sorter entry are stored
-    ** in an array of registers. They need to be composed into a record
-    ** and inserted into the sorter if either (a) there are currently
-    ** less than LIMIT+OFFSET items or (b) the new record is smaller than 
-    ** the largest record currently in the sorter. If (b) is true and there
-    ** are already LIMIT+OFFSET items in the sorter, delete the largest
-    ** entry before inserting the new one. This way there are never more 
-    ** than LIMIT+OFFSET items in the sorter.
-    **
-    ** If the new record does not need to be inserted into the sorter,
-    ** jump to the next iteration of the loop. If the pSort->labelOBLopt
-    ** value is not zero, then it is a label of where to jump.  Otherwise,
-    ** just bypass the row insert logic.  See the header comment on the
-    ** tdsqlite3WhereOrderByLimitOptLabel() function for additional info.
-    */
-    int iCsr = pSort->iECursor;
-    tdsqlite3VdbeAddOp2(v, OP_IfNotZero, iLimit, tdsqlite3VdbeCurrentAddr(v)+4);
-    VdbeCoverage(v);
-    tdsqlite3VdbeAddOp2(v, OP_Last, iCsr, 0);
-    iSkip = tdsqlite3VdbeAddOp4Int(v, OP_IdxLE,
-                                 iCsr, 0, regBase+nOBSat, nExpr-nOBSat);
-    VdbeCoverage(v);
-    tdsqlite3VdbeAddOp1(v, OP_Delete, iCsr);
-  }
-  if( regRecord==0 ){
-    regRecord = makeSorterRecord(pParse, pSort, pSelect, regBase, nBase);
-  }
-  if( pSort->sortFlags & SORTFLAG_UseSorter ){
-    op = OP_SorterInsert;
-  }else{
-    op = OP_IdxInsert;
-  }
-  tdsqlite3VdbeAddOp4Int(v, op, pSort->iECursor, regRecord,
-                       regBase+nOBSat, nBase-nOBSat);
-  if( iSkip ){
-    tdsqlite3VdbeChangeP2(v, iSkip,
-         pSort->labelOBLopt ? pSort->labelOBLopt : tdsqlite3VdbeCurrentAddr(v));
-  }
-}
-
-/*
-** Add code to implement the OFFSET
-*/
-static void codeOffset(
-  Vdbe *v,          /* Generate code into this VM */
-  int iOffset,      /* Register holding the offset counter */
-  int iContinue     /* Jump here to skip the current record */
-){
-  if( iOffset>0 ){
-    tdsqlite3VdbeAddOp3(v, OP_IfPos, iOffset, iContinue, 1); VdbeCoverage(v);
-    VdbeComment((v, "OFFSET"));
-  }
-}
-
-/*
-** Add code that will check to make sure the N registers starting at iMem
-** form a distinct entry.  iTab is a sorting index that holds previously
-** seen combinations of the N values.  A new entry is made in iTab
-** if the current N values are new.
-**
-** A jump to addrRepeat is made and the N+1 values are popped from the
-** stack if the top N elements are not distinct.
-*/
-static void codeDistinct(
-  Parse *pParse,     /* Parsing and code generating context */
-  int iTab,          /* A sorting index used to test for distinctness */
-  int addrRepeat,    /* Jump to here if not distinct */
-  int N,             /* Number of elements */
-  int iMem           /* First element */
-){
-  Vdbe *v;
-  int r1;
-
-  v = pParse->pVdbe;
-  r1 = tdsqlite3GetTempReg(pParse);
-  tdsqlite3VdbeAddOp4Int(v, OP_Found, iTab, addrRepeat, iMem, N); VdbeCoverage(v);
-  tdsqlite3VdbeAddOp3(v, OP_MakeRecord, iMem, N, r1);
-  tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iTab, r1, iMem, N);
-  tdsqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);
-  tdsqlite3ReleaseTempReg(pParse, r1);
-}
-
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-/*
-** This function is called as part of inner-loop generation for a SELECT
-** statement with an ORDER BY that is not optimized by an index. It 
-** determines the expressions, if any, that the sorter-reference 
-** optimization should be used for. The sorter-reference optimization
-** is used for SELECT queries like:
-**
-**   SELECT a, bigblob FROM t1 ORDER BY a LIMIT 10
-**
-** If the optimization is used for expression "bigblob", then instead of
-** storing values read from that column in the sorter records, the PK of
-** the row from table t1 is stored instead. Then, as records are extracted from
-** the sorter to return to the user, the required value of bigblob is
-** retrieved directly from table t1. If the values are very large, this 
-** can be more efficient than storing them directly in the sorter records.
-**
-** The ExprList_item.bSorterRef flag is set for each expression in pEList 
-** for which the sorter-reference optimization should be enabled. 
-** Additionally, the pSort->aDefer[] array is populated with entries
-** for all cursors required to evaluate all selected expressions. Finally.
-** output variable (*ppExtra) is set to an expression list containing
-** expressions for all extra PK values that should be stored in the
-** sorter records.
-*/
-static void selectExprDefer(
-  Parse *pParse,                  /* Leave any error here */
-  SortCtx *pSort,                 /* Sorter context */
-  ExprList *pEList,               /* Expressions destined for sorter */
-  ExprList **ppExtra              /* Expressions to append to sorter record */
-){
-  int i;
-  int nDefer = 0;
-  ExprList *pExtra = 0;
-  for(i=0; i<pEList->nExpr; i++){
-    struct ExprList_item *pItem = &pEList->a[i];
-    if( pItem->u.x.iOrderByCol==0 ){
-      Expr *pExpr = pItem->pExpr;
-      Table *pTab = pExpr->y.pTab;
-      if( pExpr->op==TK_COLUMN && pExpr->iColumn>=0 && pTab && !IsVirtual(pTab)
-       && (pTab->aCol[pExpr->iColumn].colFlags & COLFLAG_SORTERREF)
-      ){
-        int j;
-        for(j=0; j<nDefer; j++){
-          if( pSort->aDefer[j].iCsr==pExpr->iTable ) break;
-        }
-        if( j==nDefer ){
-          if( nDefer==ArraySize(pSort->aDefer) ){
-            continue;
-          }else{
-            int nKey = 1;
-            int k;
-            Index *pPk = 0;
-            if( !HasRowid(pTab) ){
-              pPk = tdsqlite3PrimaryKeyIndex(pTab);
-              nKey = pPk->nKeyCol;
-            }
-            for(k=0; k<nKey; k++){
-              Expr *pNew = tdsqlite3PExpr(pParse, TK_COLUMN, 0, 0);
-              if( pNew ){
-                pNew->iTable = pExpr->iTable;
-                pNew->y.pTab = pExpr->y.pTab;
-                pNew->iColumn = pPk ? pPk->aiColumn[k] : -1;
-                pExtra = tdsqlite3ExprListAppend(pParse, pExtra, pNew);
-              }
-            }
-            pSort->aDefer[nDefer].pTab = pExpr->y.pTab;
-            pSort->aDefer[nDefer].iCsr = pExpr->iTable;
-            pSort->aDefer[nDefer].nKey = nKey;
-            nDefer++;
-          }
-        }
-        pItem->bSorterRef = 1;
-      }
-    }
-  }
-  pSort->nDefer = (u8)nDefer;
-  *ppExtra = pExtra;
-}
-#endif
-
-/*
-** This routine generates the code for the inside of the inner loop
-** of a SELECT.
-**
-** If srcTab is negative, then the p->pEList expressions
-** are evaluated in order to get the data for this row.  If srcTab is
-** zero or more, then data is pulled from srcTab and p->pEList is used only 
-** to get the number of columns and the collation sequence for each column.
-*/
-static void selectInnerLoop(
-  Parse *pParse,          /* The parser context */
-  Select *p,              /* The complete select statement being coded */
-  int srcTab,             /* Pull data from this table if non-negative */
-  SortCtx *pSort,         /* If not NULL, info on how to process ORDER BY */
-  DistinctCtx *pDistinct, /* If not NULL, info on how to process DISTINCT */
-  SelectDest *pDest,      /* How to dispose of the results */
-  int iContinue,          /* Jump here to continue with next row */
-  int iBreak              /* Jump here to break out of the inner loop */
-){
-  Vdbe *v = pParse->pVdbe;
-  int i;
-  int hasDistinct;            /* True if the DISTINCT keyword is present */
-  int eDest = pDest->eDest;   /* How to dispose of results */
-  int iParm = pDest->iSDParm; /* First argument to disposal method */
-  int nResultCol;             /* Number of result columns */
-  int nPrefixReg = 0;         /* Number of extra registers before regResult */
-  RowLoadInfo sRowLoadInfo;   /* Info for deferred row loading */
-
-  /* Usually, regResult is the first cell in an array of memory cells
-  ** containing the current result row. In this case regOrig is set to the
-  ** same value. However, if the results are being sent to the sorter, the
-  ** values for any expressions that are also part of the sort-key are omitted
-  ** from this array. In this case regOrig is set to zero.  */
-  int regResult;              /* Start of memory holding current results */
-  int regOrig;                /* Start of memory holding full result (or 0) */
-
-  assert( v );
-  assert( p->pEList!=0 );
-  hasDistinct = pDistinct ? pDistinct->eTnctType : WHERE_DISTINCT_NOOP;
-  if( pSort && pSort->pOrderBy==0 ) pSort = 0;
-  if( pSort==0 && !hasDistinct ){
-    assert( iContinue!=0 );
-    codeOffset(v, p->iOffset, iContinue);
-  }
-
-  /* Pull the requested columns.
-  */
-  nResultCol = p->pEList->nExpr;
-
-  if( pDest->iSdst==0 ){
-    if( pSort ){
-      nPrefixReg = pSort->pOrderBy->nExpr;
-      if( !(pSort->sortFlags & SORTFLAG_UseSorter) ) nPrefixReg++;
-      pParse->nMem += nPrefixReg;
-    }
-    pDest->iSdst = pParse->nMem+1;
-    pParse->nMem += nResultCol;
-  }else if( pDest->iSdst+nResultCol > pParse->nMem ){
-    /* This is an error condition that can result, for example, when a SELECT
-    ** on the right-hand side of an INSERT contains more result columns than
-    ** there are columns in the table on the left.  The error will be caught
-    ** and reported later.  But we need to make sure enough memory is allocated
-    ** to avoid other spurious errors in the meantime. */
-    pParse->nMem += nResultCol;
-  }
-  pDest->nSdst = nResultCol;
-  regOrig = regResult = pDest->iSdst;
-  if( srcTab>=0 ){
-    for(i=0; i<nResultCol; i++){
-      tdsqlite3VdbeAddOp3(v, OP_Column, srcTab, i, regResult+i);
-      VdbeComment((v, "%s", p->pEList->a[i].zEName));
-    }
-  }else if( eDest!=SRT_Exists ){
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-    ExprList *pExtra = 0;
-#endif
-    /* If the destination is an EXISTS(...) expression, the actual
-    ** values returned by the SELECT are not required.
-    */
-    u8 ecelFlags;    /* "ecel" is an abbreviation of "ExprCodeExprList" */
-    ExprList *pEList;
-    if( eDest==SRT_Mem || eDest==SRT_Output || eDest==SRT_Coroutine ){
-      ecelFlags = SQLITE_ECEL_DUP;
-    }else{
-      ecelFlags = 0;
-    }
-    if( pSort && hasDistinct==0 && eDest!=SRT_EphemTab && eDest!=SRT_Table ){
-      /* For each expression in p->pEList that is a copy of an expression in
-      ** the ORDER BY clause (pSort->pOrderBy), set the associated 
-      ** iOrderByCol value to one more than the index of the ORDER BY 
-      ** expression within the sort-key that pushOntoSorter() will generate.
-      ** This allows the p->pEList field to be omitted from the sorted record,
-      ** saving space and CPU cycles.  */
-      ecelFlags |= (SQLITE_ECEL_OMITREF|SQLITE_ECEL_REF);
-
-      for(i=pSort->nOBSat; i<pSort->pOrderBy->nExpr; i++){
-        int j;
-        if( (j = pSort->pOrderBy->a[i].u.x.iOrderByCol)>0 ){
-          p->pEList->a[j-1].u.x.iOrderByCol = i+1-pSort->nOBSat;
-        }
-      }
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-      selectExprDefer(pParse, pSort, p->pEList, &pExtra);
-      if( pExtra && pParse->db->mallocFailed==0 ){
-        /* If there are any extra PK columns to add to the sorter records,
-        ** allocate extra memory cells and adjust the OpenEphemeral 
-        ** instruction to account for the larger records. This is only
-        ** required if there are one or more WITHOUT ROWID tables with
-        ** composite primary keys in the SortCtx.aDefer[] array.  */
-        VdbeOp *pOp = tdsqlite3VdbeGetOp(v, pSort->addrSortIndex);
-        pOp->p2 += (pExtra->nExpr - pSort->nDefer);
-        pOp->p4.pKeyInfo->nAllField += (pExtra->nExpr - pSort->nDefer);
-        pParse->nMem += pExtra->nExpr;
-      }
-#endif
-
-      /* Adjust nResultCol to account for columns that are omitted
-      ** from the sorter by the optimizations in this branch */
-      pEList = p->pEList;
-      for(i=0; i<pEList->nExpr; i++){
-        if( pEList->a[i].u.x.iOrderByCol>0
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-         || pEList->a[i].bSorterRef
-#endif
-        ){
-          nResultCol--;
-          regOrig = 0;
-        }
-      }
-
-      testcase( regOrig );
-      testcase( eDest==SRT_Set );
-      testcase( eDest==SRT_Mem );
-      testcase( eDest==SRT_Coroutine );
-      testcase( eDest==SRT_Output );
-      assert( eDest==SRT_Set || eDest==SRT_Mem 
-           || eDest==SRT_Coroutine || eDest==SRT_Output );
-    }
-    sRowLoadInfo.regResult = regResult;
-    sRowLoadInfo.ecelFlags = ecelFlags;
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-    sRowLoadInfo.pExtra = pExtra;
-    sRowLoadInfo.regExtraResult = regResult + nResultCol;
-    if( pExtra ) nResultCol += pExtra->nExpr;
-#endif
-    if( p->iLimit
-     && (ecelFlags & SQLITE_ECEL_OMITREF)!=0 
-     && nPrefixReg>0
-    ){
-      assert( pSort!=0 );
-      assert( hasDistinct==0 );
-      pSort->pDeferredRowLoad = &sRowLoadInfo;
-      regOrig = 0;
-    }else{
-      innerLoopLoadRow(pParse, p, &sRowLoadInfo);
-    }
-  }
-
-  /* If the DISTINCT keyword was present on the SELECT statement
-  ** and this row has been seen before, then do not make this row
-  ** part of the result.
-  */
-  if( hasDistinct ){
-    switch( pDistinct->eTnctType ){
-      case WHERE_DISTINCT_ORDERED: {
-        VdbeOp *pOp;            /* No longer required OpenEphemeral instr. */
-        int iJump;              /* Jump destination */
-        int regPrev;            /* Previous row content */
-
-        /* Allocate space for the previous row */
-        regPrev = pParse->nMem+1;
-        pParse->nMem += nResultCol;
-
-        /* Change the OP_OpenEphemeral coded earlier to an OP_Null
-        ** sets the MEM_Cleared bit on the first register of the
-        ** previous value.  This will cause the OP_Ne below to always
-        ** fail on the first iteration of the loop even if the first
-        ** row is all NULLs.
-        */
-        tdsqlite3VdbeChangeToNoop(v, pDistinct->addrTnct);
-        pOp = tdsqlite3VdbeGetOp(v, pDistinct->addrTnct);
-        pOp->opcode = OP_Null;
-        pOp->p1 = 1;
-        pOp->p2 = regPrev;
-        pOp = 0;  /* Ensure pOp is not used after tdsqlite3VdbeAddOp() */
-
-        iJump = tdsqlite3VdbeCurrentAddr(v) + nResultCol;
-        for(i=0; i<nResultCol; i++){
-          CollSeq *pColl = tdsqlite3ExprCollSeq(pParse, p->pEList->a[i].pExpr);
-          if( i<nResultCol-1 ){
-            tdsqlite3VdbeAddOp3(v, OP_Ne, regResult+i, iJump, regPrev+i);
-            VdbeCoverage(v);
-          }else{
-            tdsqlite3VdbeAddOp3(v, OP_Eq, regResult+i, iContinue, regPrev+i);
-            VdbeCoverage(v);
-           }
-          tdsqlite3VdbeChangeP4(v, -1, (const char *)pColl, P4_COLLSEQ);
-          tdsqlite3VdbeChangeP5(v, SQLITE_NULLEQ);
-        }
-        assert( tdsqlite3VdbeCurrentAddr(v)==iJump || pParse->db->mallocFailed );
-        tdsqlite3VdbeAddOp3(v, OP_Copy, regResult, regPrev, nResultCol-1);
-        break;
-      }
-
-      case WHERE_DISTINCT_UNIQUE: {
-        tdsqlite3VdbeChangeToNoop(v, pDistinct->addrTnct);
-        break;
-      }
-
-      default: {
-        assert( pDistinct->eTnctType==WHERE_DISTINCT_UNORDERED );
-        codeDistinct(pParse, pDistinct->tabTnct, iContinue, nResultCol,
-                     regResult);
-        break;
-      }
-    }
-    if( pSort==0 ){
-      codeOffset(v, p->iOffset, iContinue);
-    }
-  }
-
-  switch( eDest ){
-    /* In this mode, write each query result to the key of the temporary
-    ** table iParm.
-    */
-#ifndef SQLITE_OMIT_COMPOUND_SELECT
-    case SRT_Union: {
-      int r1;
-      r1 = tdsqlite3GetTempReg(pParse);
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regResult, nResultCol, r1);
-      tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iParm, r1, regResult, nResultCol);
-      tdsqlite3ReleaseTempReg(pParse, r1);
-      break;
-    }
-
-    /* Construct a record from the query result, but instead of
-    ** saving that record, use it as a key to delete elements from
-    ** the temporary table iParm.
-    */
-    case SRT_Except: {
-      tdsqlite3VdbeAddOp3(v, OP_IdxDelete, iParm, regResult, nResultCol);
-      break;
-    }
-#endif /* SQLITE_OMIT_COMPOUND_SELECT */
-
-    /* Store the result as data using a unique key.
-    */
-    case SRT_Fifo:
-    case SRT_DistFifo:
-    case SRT_Table:
-    case SRT_EphemTab: {
-      int r1 = tdsqlite3GetTempRange(pParse, nPrefixReg+1);
-      testcase( eDest==SRT_Table );
-      testcase( eDest==SRT_EphemTab );
-      testcase( eDest==SRT_Fifo );
-      testcase( eDest==SRT_DistFifo );
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regResult, nResultCol, r1+nPrefixReg);
-#ifndef SQLITE_OMIT_CTE
-      if( eDest==SRT_DistFifo ){
-        /* If the destination is DistFifo, then cursor (iParm+1) is open
-        ** on an ephemeral index. If the current row is already present
-        ** in the index, do not write it to the output. If not, add the
-        ** current row to the index and proceed with writing it to the
-        ** output table as well.  */
-        int addr = tdsqlite3VdbeCurrentAddr(v) + 4;
-        tdsqlite3VdbeAddOp4Int(v, OP_Found, iParm+1, addr, r1, 0);
-        VdbeCoverage(v);
-        tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iParm+1, r1,regResult,nResultCol);
-        assert( pSort==0 );
-      }
-#endif
-      if( pSort ){
-        assert( regResult==regOrig );
-        pushOntoSorter(pParse, pSort, p, r1+nPrefixReg, regOrig, 1, nPrefixReg);
-      }else{
-        int r2 = tdsqlite3GetTempReg(pParse);
-        tdsqlite3VdbeAddOp2(v, OP_NewRowid, iParm, r2);
-        tdsqlite3VdbeAddOp3(v, OP_Insert, iParm, r1, r2);
-        tdsqlite3VdbeChangeP5(v, OPFLAG_APPEND);
-        tdsqlite3ReleaseTempReg(pParse, r2);
-      }
-      tdsqlite3ReleaseTempRange(pParse, r1, nPrefixReg+1);
-      break;
-    }
-
-#ifndef SQLITE_OMIT_SUBQUERY
-    /* If we are creating a set for an "expr IN (SELECT ...)" construct,
-    ** then there should be a single item on the stack.  Write this
-    ** item into the set table with bogus data.
-    */
-    case SRT_Set: {
-      if( pSort ){
-        /* At first glance you would think we could optimize out the
-        ** ORDER BY in this case since the order of entries in the set
-        ** does not matter.  But there might be a LIMIT clause, in which
-        ** case the order does matter */
-        pushOntoSorter(
-            pParse, pSort, p, regResult, regOrig, nResultCol, nPrefixReg);
-      }else{
-        int r1 = tdsqlite3GetTempReg(pParse);
-        assert( tdsqlite3Strlen30(pDest->zAffSdst)==nResultCol );
-        tdsqlite3VdbeAddOp4(v, OP_MakeRecord, regResult, nResultCol, 
-            r1, pDest->zAffSdst, nResultCol);
-        tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iParm, r1, regResult, nResultCol);
-        tdsqlite3ReleaseTempReg(pParse, r1);
-      }
-      break;
-    }
-
-    /* If any row exist in the result set, record that fact and abort.
-    */
-    case SRT_Exists: {
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 1, iParm);
-      /* The LIMIT clause will terminate the loop for us */
-      break;
-    }
-
-    /* If this is a scalar select that is part of an expression, then
-    ** store the results in the appropriate memory cell or array of 
-    ** memory cells and break out of the scan loop.
-    */
-    case SRT_Mem: {
-      if( pSort ){
-        assert( nResultCol<=pDest->nSdst );
-        pushOntoSorter(
-            pParse, pSort, p, regResult, regOrig, nResultCol, nPrefixReg);
-      }else{
-        assert( nResultCol==pDest->nSdst );
-        assert( regResult==iParm );
-        /* The LIMIT clause will jump out of the loop for us */
-      }
-      break;
-    }
-#endif /* #ifndef SQLITE_OMIT_SUBQUERY */
-
-    case SRT_Coroutine:       /* Send data to a co-routine */
-    case SRT_Output: {        /* Return the results */
-      testcase( eDest==SRT_Coroutine );
-      testcase( eDest==SRT_Output );
-      if( pSort ){
-        pushOntoSorter(pParse, pSort, p, regResult, regOrig, nResultCol,
-                       nPrefixReg);
-      }else if( eDest==SRT_Coroutine ){
-        tdsqlite3VdbeAddOp1(v, OP_Yield, pDest->iSDParm);
-      }else{
-        tdsqlite3VdbeAddOp2(v, OP_ResultRow, regResult, nResultCol);
-      }
-      break;
-    }
-
-#ifndef SQLITE_OMIT_CTE
-    /* Write the results into a priority queue that is order according to
-    ** pDest->pOrderBy (in pSO).  pDest->iSDParm (in iParm) is the cursor for an
-    ** index with pSO->nExpr+2 columns.  Build a key using pSO for the first
-    ** pSO->nExpr columns, then make sure all keys are unique by adding a
-    ** final OP_Sequence column.  The last column is the record as a blob.
-    */
-    case SRT_DistQueue:
-    case SRT_Queue: {
-      int nKey;
-      int r1, r2, r3;
-      int addrTest = 0;
-      ExprList *pSO;
-      pSO = pDest->pOrderBy;
-      assert( pSO );
-      nKey = pSO->nExpr;
-      r1 = tdsqlite3GetTempReg(pParse);
-      r2 = tdsqlite3GetTempRange(pParse, nKey+2);
-      r3 = r2+nKey+1;
-      if( eDest==SRT_DistQueue ){
-        /* If the destination is DistQueue, then cursor (iParm+1) is open
-        ** on a second ephemeral index that holds all values every previously
-        ** added to the queue. */
-        addrTest = tdsqlite3VdbeAddOp4Int(v, OP_Found, iParm+1, 0, 
-                                        regResult, nResultCol);
-        VdbeCoverage(v);
-      }
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regResult, nResultCol, r3);
-      if( eDest==SRT_DistQueue ){
-        tdsqlite3VdbeAddOp2(v, OP_IdxInsert, iParm+1, r3);
-        tdsqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);
-      }
-      for(i=0; i<nKey; i++){
-        tdsqlite3VdbeAddOp2(v, OP_SCopy,
-                          regResult + pSO->a[i].u.x.iOrderByCol - 1,
-                          r2+i);
-      }
-      tdsqlite3VdbeAddOp2(v, OP_Sequence, iParm, r2+nKey);
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, r2, nKey+2, r1);
-      tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iParm, r1, r2, nKey+2);
-      if( addrTest ) tdsqlite3VdbeJumpHere(v, addrTest);
-      tdsqlite3ReleaseTempReg(pParse, r1);
-      tdsqlite3ReleaseTempRange(pParse, r2, nKey+2);
-      break;
-    }
-#endif /* SQLITE_OMIT_CTE */
-
-
-
-#if !defined(SQLITE_OMIT_TRIGGER)
-    /* Discard the results.  This is used for SELECT statements inside
-    ** the body of a TRIGGER.  The purpose of such selects is to call
-    ** user-defined functions that have side effects.  We do not care
-    ** about the actual results of the select.
-    */
-    default: {
-      assert( eDest==SRT_Discard );
-      break;
-    }
-#endif
-  }
-
-  /* Jump to the end of the loop if the LIMIT is reached.  Except, if
-  ** there is a sorter, in which case the sorter has already limited
-  ** the output for us.
-  */
-  if( pSort==0 && p->iLimit ){
-    tdsqlite3VdbeAddOp2(v, OP_DecrJumpZero, p->iLimit, iBreak); VdbeCoverage(v);
-  }
-}
-
-/*
-** Allocate a KeyInfo object sufficient for an index of N key columns and
-** X extra columns.
-*/
-SQLITE_PRIVATE KeyInfo *tdsqlite3KeyInfoAlloc(tdsqlite3 *db, int N, int X){
-  int nExtra = (N+X)*(sizeof(CollSeq*)+1) - sizeof(CollSeq*);
-  KeyInfo *p = tdsqlite3DbMallocRawNN(db, sizeof(KeyInfo) + nExtra);
-  if( p ){
-    p->aSortFlags = (u8*)&p->aColl[N+X];
-    p->nKeyField = (u16)N;
-    p->nAllField = (u16)(N+X);
-    p->enc = ENC(db);
-    p->db = db;
-    p->nRef = 1;
-    memset(&p[1], 0, nExtra);
-  }else{
-    tdsqlite3OomFault(db);
-  }
-  return p;
-}
-
-/*
-** Deallocate a KeyInfo object
-*/
-SQLITE_PRIVATE void tdsqlite3KeyInfoUnref(KeyInfo *p){
-  if( p ){
-    assert( p->nRef>0 );
-    p->nRef--;
-    if( p->nRef==0 ) tdsqlite3DbFreeNN(p->db, p);
-  }
-}
-
-/*
-** Make a new pointer to a KeyInfo object
-*/
-SQLITE_PRIVATE KeyInfo *tdsqlite3KeyInfoRef(KeyInfo *p){
-  if( p ){
-    assert( p->nRef>0 );
-    p->nRef++;
-  }
-  return p;
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Return TRUE if a KeyInfo object can be change.  The KeyInfo object
-** can only be changed if this is just a single reference to the object.
-**
-** This routine is used only inside of assert() statements.
-*/
-SQLITE_PRIVATE int tdsqlite3KeyInfoIsWriteable(KeyInfo *p){ return p->nRef==1; }
-#endif /* SQLITE_DEBUG */
-
-/*
-** Given an expression list, generate a KeyInfo structure that records
-** the collating sequence for each expression in that expression list.
-**
-** If the ExprList is an ORDER BY or GROUP BY clause then the resulting
-** KeyInfo structure is appropriate for initializing a virtual index to
-** implement that clause.  If the ExprList is the result set of a SELECT
-** then the KeyInfo structure is appropriate for initializing a virtual
-** index to implement a DISTINCT test.
-**
-** Space to hold the KeyInfo structure is obtained from malloc.  The calling
-** function is responsible for seeing that this structure is eventually
-** freed.
-*/
-SQLITE_PRIVATE KeyInfo *tdsqlite3KeyInfoFromExprList(
-  Parse *pParse,       /* Parsing context */
-  ExprList *pList,     /* Form the KeyInfo object from this ExprList */
-  int iStart,          /* Begin with this column of pList */
-  int nExtra           /* Add this many extra columns to the end */
-){
-  int nExpr;
-  KeyInfo *pInfo;
-  struct ExprList_item *pItem;
-  tdsqlite3 *db = pParse->db;
-  int i;
-
-  nExpr = pList->nExpr;
-  pInfo = tdsqlite3KeyInfoAlloc(db, nExpr-iStart, nExtra+1);
-  if( pInfo ){
-    assert( tdsqlite3KeyInfoIsWriteable(pInfo) );
-    for(i=iStart, pItem=pList->a+iStart; i<nExpr; i++, pItem++){
-      pInfo->aColl[i-iStart] = tdsqlite3ExprNNCollSeq(pParse, pItem->pExpr);
-      pInfo->aSortFlags[i-iStart] = pItem->sortFlags;
-    }
-  }
-  return pInfo;
-}
-
-/*
-** Name of the connection operator, used for error messages.
-*/
-static const char *selectOpName(int id){
-  char *z;
-  switch( id ){
-    case TK_ALL:       z = "UNION ALL";   break;
-    case TK_INTERSECT: z = "INTERSECT";   break;
-    case TK_EXCEPT:    z = "EXCEPT";      break;
-    default:           z = "UNION";       break;
-  }
-  return z;
-}
-
-#ifndef SQLITE_OMIT_EXPLAIN
-/*
-** Unless an "EXPLAIN QUERY PLAN" command is being processed, this function
-** is a no-op. Otherwise, it adds a single row of output to the EQP result,
-** where the caption is of the form:
-**
-**   "USE TEMP B-TREE FOR xxx"
-**
-** where xxx is one of "DISTINCT", "ORDER BY" or "GROUP BY". Exactly which
-** is determined by the zUsage argument.
-*/
-static void explainTempTable(Parse *pParse, const char *zUsage){
-  ExplainQueryPlan((pParse, 0, "USE TEMP B-TREE FOR %s", zUsage));
-}
-
-/*
-** Assign expression b to lvalue a. A second, no-op, version of this macro
-** is provided when SQLITE_OMIT_EXPLAIN is defined. This allows the code
-** in tdsqlite3Select() to assign values to structure member variables that
-** only exist if SQLITE_OMIT_EXPLAIN is not defined without polluting the
-** code with #ifndef directives.
-*/
-# define explainSetInteger(a, b) a = b
-
-#else
-/* No-op versions of the explainXXX() functions and macros. */
-# define explainTempTable(y,z)
-# define explainSetInteger(y,z)
-#endif
-
-
-/*
-** If the inner loop was generated using a non-null pOrderBy argument,
-** then the results were placed in a sorter.  After the loop is terminated
-** we need to run the sorter and output the results.  The following
-** routine generates the code needed to do that.
-*/
-static void generateSortTail(
-  Parse *pParse,    /* Parsing context */
-  Select *p,        /* The SELECT statement */
-  SortCtx *pSort,   /* Information on the ORDER BY clause */
-  int nColumn,      /* Number of columns of data */
-  SelectDest *pDest /* Write the sorted results here */
-){
-  Vdbe *v = pParse->pVdbe;                     /* The prepared statement */
-  int addrBreak = pSort->labelDone;            /* Jump here to exit loop */
-  int addrContinue = tdsqlite3VdbeMakeLabel(pParse);/* Jump here for next cycle */
-  int addr;                       /* Top of output loop. Jump for Next. */
-  int addrOnce = 0;
-  int iTab;
-  ExprList *pOrderBy = pSort->pOrderBy;
-  int eDest = pDest->eDest;
-  int iParm = pDest->iSDParm;
-  int regRow;
-  int regRowid;
-  int iCol;
-  int nKey;                       /* Number of key columns in sorter record */
-  int iSortTab;                   /* Sorter cursor to read from */
-  int i;
-  int bSeq;                       /* True if sorter record includes seq. no. */
-  int nRefKey = 0;
-  struct ExprList_item *aOutEx = p->pEList->a;
-
-  assert( addrBreak<0 );
-  if( pSort->labelBkOut ){
-    tdsqlite3VdbeAddOp2(v, OP_Gosub, pSort->regReturn, pSort->labelBkOut);
-    tdsqlite3VdbeGoto(v, addrBreak);
-    tdsqlite3VdbeResolveLabel(v, pSort->labelBkOut);
-  }
-
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-  /* Open any cursors needed for sorter-reference expressions */
-  for(i=0; i<pSort->nDefer; i++){
-    Table *pTab = pSort->aDefer[i].pTab;
-    int iDb = tdsqlite3SchemaToIndex(pParse->db, pTab->pSchema);
-    tdsqlite3OpenTable(pParse, pSort->aDefer[i].iCsr, iDb, pTab, OP_OpenRead);
-    nRefKey = MAX(nRefKey, pSort->aDefer[i].nKey);
-  }
-#endif
-
-  iTab = pSort->iECursor;
-  if( eDest==SRT_Output || eDest==SRT_Coroutine || eDest==SRT_Mem ){
-    regRowid = 0;
-    regRow = pDest->iSdst;
-  }else{
-    regRowid = tdsqlite3GetTempReg(pParse);
-    if( eDest==SRT_EphemTab || eDest==SRT_Table ){
-      regRow = tdsqlite3GetTempReg(pParse);
-      nColumn = 0;
-    }else{
-      regRow = tdsqlite3GetTempRange(pParse, nColumn);
-    }
-  }
-  nKey = pOrderBy->nExpr - pSort->nOBSat;
-  if( pSort->sortFlags & SORTFLAG_UseSorter ){
-    int regSortOut = ++pParse->nMem;
-    iSortTab = pParse->nTab++;
-    if( pSort->labelBkOut ){
-      addrOnce = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-    }
-    tdsqlite3VdbeAddOp3(v, OP_OpenPseudo, iSortTab, regSortOut, 
-        nKey+1+nColumn+nRefKey);
-    if( addrOnce ) tdsqlite3VdbeJumpHere(v, addrOnce);
-    addr = 1 + tdsqlite3VdbeAddOp2(v, OP_SorterSort, iTab, addrBreak);
-    VdbeCoverage(v);
-    codeOffset(v, p->iOffset, addrContinue);
-    tdsqlite3VdbeAddOp3(v, OP_SorterData, iTab, regSortOut, iSortTab);
-    bSeq = 0;
-  }else{
-    addr = 1 + tdsqlite3VdbeAddOp2(v, OP_Sort, iTab, addrBreak); VdbeCoverage(v);
-    codeOffset(v, p->iOffset, addrContinue);
-    iSortTab = iTab;
-    bSeq = 1;
-  }
-  for(i=0, iCol=nKey+bSeq-1; i<nColumn; i++){
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-    if( aOutEx[i].bSorterRef ) continue;
-#endif
-    if( aOutEx[i].u.x.iOrderByCol==0 ) iCol++;
-  }
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-  if( pSort->nDefer ){
-    int iKey = iCol+1;
-    int regKey = tdsqlite3GetTempRange(pParse, nRefKey);
-
-    for(i=0; i<pSort->nDefer; i++){
-      int iCsr = pSort->aDefer[i].iCsr;
-      Table *pTab = pSort->aDefer[i].pTab;
-      int nKey = pSort->aDefer[i].nKey;
-
-      tdsqlite3VdbeAddOp1(v, OP_NullRow, iCsr);
-      if( HasRowid(pTab) ){
-        tdsqlite3VdbeAddOp3(v, OP_Column, iSortTab, iKey++, regKey);
-        tdsqlite3VdbeAddOp3(v, OP_SeekRowid, iCsr, 
-            tdsqlite3VdbeCurrentAddr(v)+1, regKey);
-      }else{
-        int k;
-        int iJmp;
-        assert( tdsqlite3PrimaryKeyIndex(pTab)->nKeyCol==nKey );
-        for(k=0; k<nKey; k++){
-          tdsqlite3VdbeAddOp3(v, OP_Column, iSortTab, iKey++, regKey+k);
-        }
-        iJmp = tdsqlite3VdbeCurrentAddr(v);
-        tdsqlite3VdbeAddOp4Int(v, OP_SeekGE, iCsr, iJmp+2, regKey, nKey);
-        tdsqlite3VdbeAddOp4Int(v, OP_IdxLE, iCsr, iJmp+3, regKey, nKey);
-        tdsqlite3VdbeAddOp1(v, OP_NullRow, iCsr);
-      }
-    }
-    tdsqlite3ReleaseTempRange(pParse, regKey, nRefKey);
-  }
-#endif
-  for(i=nColumn-1; i>=0; i--){
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-    if( aOutEx[i].bSorterRef ){
-      tdsqlite3ExprCode(pParse, aOutEx[i].pExpr, regRow+i);
-    }else
-#endif
-    {
-      int iRead;
-      if( aOutEx[i].u.x.iOrderByCol ){
-        iRead = aOutEx[i].u.x.iOrderByCol-1;
-      }else{
-        iRead = iCol--;
-      }
-      tdsqlite3VdbeAddOp3(v, OP_Column, iSortTab, iRead, regRow+i);
-      VdbeComment((v, "%s", aOutEx[i].zEName));
-    }
-  }
-  switch( eDest ){
-    case SRT_Table:
-    case SRT_EphemTab: {
-      tdsqlite3VdbeAddOp3(v, OP_Column, iSortTab, nKey+bSeq, regRow);
-      tdsqlite3VdbeAddOp2(v, OP_NewRowid, iParm, regRowid);
-      tdsqlite3VdbeAddOp3(v, OP_Insert, iParm, regRow, regRowid);
-      tdsqlite3VdbeChangeP5(v, OPFLAG_APPEND);
-      break;
-    }
-#ifndef SQLITE_OMIT_SUBQUERY
-    case SRT_Set: {
-      assert( nColumn==tdsqlite3Strlen30(pDest->zAffSdst) );
-      tdsqlite3VdbeAddOp4(v, OP_MakeRecord, regRow, nColumn, regRowid,
-                        pDest->zAffSdst, nColumn);
-      tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iParm, regRowid, regRow, nColumn);
-      break;
-    }
-    case SRT_Mem: {
-      /* The LIMIT clause will terminate the loop for us */
-      break;
-    }
-#endif
-    default: {
-      assert( eDest==SRT_Output || eDest==SRT_Coroutine ); 
-      testcase( eDest==SRT_Output );
-      testcase( eDest==SRT_Coroutine );
-      if( eDest==SRT_Output ){
-        tdsqlite3VdbeAddOp2(v, OP_ResultRow, pDest->iSdst, nColumn);
-      }else{
-        tdsqlite3VdbeAddOp1(v, OP_Yield, pDest->iSDParm);
-      }
-      break;
-    }
-  }
-  if( regRowid ){
-    if( eDest==SRT_Set ){
-      tdsqlite3ReleaseTempRange(pParse, regRow, nColumn);
-    }else{
-      tdsqlite3ReleaseTempReg(pParse, regRow);
-    }
-    tdsqlite3ReleaseTempReg(pParse, regRowid);
-  }
-  /* The bottom of the loop
-  */
-  tdsqlite3VdbeResolveLabel(v, addrContinue);
-  if( pSort->sortFlags & SORTFLAG_UseSorter ){
-    tdsqlite3VdbeAddOp2(v, OP_SorterNext, iTab, addr); VdbeCoverage(v);
-  }else{
-    tdsqlite3VdbeAddOp2(v, OP_Next, iTab, addr); VdbeCoverage(v);
-  }
-  if( pSort->regReturn ) tdsqlite3VdbeAddOp1(v, OP_Return, pSort->regReturn);
-  tdsqlite3VdbeResolveLabel(v, addrBreak);
-}
-
-/*
-** Return a pointer to a string containing the 'declaration type' of the
-** expression pExpr. The string may be treated as static by the caller.
-**
-** Also try to estimate the size of the returned value and return that
-** result in *pEstWidth.
-**
-** The declaration type is the exact datatype definition extracted from the
-** original CREATE TABLE statement if the expression is a column. The
-** declaration type for a ROWID field is INTEGER. Exactly when an expression
-** is considered a column can be complex in the presence of subqueries. The
-** result-set expression in all of the following SELECT statements is 
-** considered a column by this function.
-**
-**   SELECT col FROM tbl;
-**   SELECT (SELECT col FROM tbl;
-**   SELECT (SELECT col FROM tbl);
-**   SELECT abc FROM (SELECT col AS abc FROM tbl);
-** 
-** The declaration type for any expression other than a column is NULL.
-**
-** This routine has either 3 or 6 parameters depending on whether or not
-** the SQLITE_ENABLE_COLUMN_METADATA compile-time option is used.
-*/
-#ifdef SQLITE_ENABLE_COLUMN_METADATA
-# define columnType(A,B,C,D,E) columnTypeImpl(A,B,C,D,E)
-#else /* if !defined(SQLITE_ENABLE_COLUMN_METADATA) */
-# define columnType(A,B,C,D,E) columnTypeImpl(A,B)
-#endif
-static const char *columnTypeImpl(
-  NameContext *pNC, 
-#ifndef SQLITE_ENABLE_COLUMN_METADATA
-  Expr *pExpr
-#else
-  Expr *pExpr,
-  const char **pzOrigDb,
-  const char **pzOrigTab,
-  const char **pzOrigCol
-#endif
-){
-  char const *zType = 0;
-  int j;
-#ifdef SQLITE_ENABLE_COLUMN_METADATA
-  char const *zOrigDb = 0;
-  char const *zOrigTab = 0;
-  char const *zOrigCol = 0;
-#endif
-
-  assert( pExpr!=0 );
-  assert( pNC->pSrcList!=0 );
-  switch( pExpr->op ){
-    case TK_COLUMN: {
-      /* The expression is a column. Locate the table the column is being
-      ** extracted from in NameContext.pSrcList. This table may be real
-      ** database table or a subquery.
-      */
-      Table *pTab = 0;            /* Table structure column is extracted from */
-      Select *pS = 0;             /* Select the column is extracted from */
-      int iCol = pExpr->iColumn;  /* Index of column in pTab */
-      while( pNC && !pTab ){
-        SrcList *pTabList = pNC->pSrcList;
-        for(j=0;j<pTabList->nSrc && pTabList->a[j].iCursor!=pExpr->iTable;j++);
-        if( j<pTabList->nSrc ){
-          pTab = pTabList->a[j].pTab;
-          pS = pTabList->a[j].pSelect;
-        }else{
-          pNC = pNC->pNext;
-        }
-      }
-
-      if( pTab==0 ){
-        /* At one time, code such as "SELECT new.x" within a trigger would
-        ** cause this condition to run.  Since then, we have restructured how
-        ** trigger code is generated and so this condition is no longer 
-        ** possible. However, it can still be true for statements like
-        ** the following:
-        **
-        **   CREATE TABLE t1(col INTEGER);
-        **   SELECT (SELECT t1.col) FROM FROM t1;
-        **
-        ** when columnType() is called on the expression "t1.col" in the 
-        ** sub-select. In this case, set the column type to NULL, even
-        ** though it should really be "INTEGER".
-        **
-        ** This is not a problem, as the column type of "t1.col" is never
-        ** used. When columnType() is called on the expression 
-        ** "(SELECT t1.col)", the correct type is returned (see the TK_SELECT
-        ** branch below.  */
-        break;
-      }
-
-      assert( pTab && pExpr->y.pTab==pTab );
-      if( pS ){
-        /* The "table" is actually a sub-select or a view in the FROM clause
-        ** of the SELECT statement. Return the declaration type and origin
-        ** data for the result-set column of the sub-select.
-        */
-        if( iCol>=0 && iCol<pS->pEList->nExpr ){
-          /* If iCol is less than zero, then the expression requests the
-          ** rowid of the sub-select or view. This expression is legal (see 
-          ** test case misc2.2.2) - it always evaluates to NULL.
-          */
-          NameContext sNC;
-          Expr *p = pS->pEList->a[iCol].pExpr;
-          sNC.pSrcList = pS->pSrc;
-          sNC.pNext = pNC;
-          sNC.pParse = pNC->pParse;
-          zType = columnType(&sNC, p,&zOrigDb,&zOrigTab,&zOrigCol); 
-        }
-      }else{
-        /* A real table or a CTE table */
-        assert( !pS );
-#ifdef SQLITE_ENABLE_COLUMN_METADATA
-        if( iCol<0 ) iCol = pTab->iPKey;
-        assert( iCol==XN_ROWID || (iCol>=0 && iCol<pTab->nCol) );
-        if( iCol<0 ){
-          zType = "INTEGER";
-          zOrigCol = "rowid";
-        }else{
-          zOrigCol = pTab->aCol[iCol].zName;
-          zType = tdsqlite3ColumnType(&pTab->aCol[iCol],0);
-        }
-        zOrigTab = pTab->zName;
-        if( pNC->pParse && pTab->pSchema ){
-          int iDb = tdsqlite3SchemaToIndex(pNC->pParse->db, pTab->pSchema);
-          zOrigDb = pNC->pParse->db->aDb[iDb].zDbSName;
-        }
-#else
-        assert( iCol==XN_ROWID || (iCol>=0 && iCol<pTab->nCol) );
-        if( iCol<0 ){
-          zType = "INTEGER";
-        }else{
-          zType = tdsqlite3ColumnType(&pTab->aCol[iCol],0);
-        }
-#endif
-      }
-      break;
-    }
-#ifndef SQLITE_OMIT_SUBQUERY
-    case TK_SELECT: {
-      /* The expression is a sub-select. Return the declaration type and
-      ** origin info for the single column in the result set of the SELECT
-      ** statement.
-      */
-      NameContext sNC;
-      Select *pS = pExpr->x.pSelect;
-      Expr *p = pS->pEList->a[0].pExpr;
-      assert( ExprHasProperty(pExpr, EP_xIsSelect) );
-      sNC.pSrcList = pS->pSrc;
-      sNC.pNext = pNC;
-      sNC.pParse = pNC->pParse;
-      zType = columnType(&sNC, p, &zOrigDb, &zOrigTab, &zOrigCol); 
-      break;
-    }
-#endif
-  }
-
-#ifdef SQLITE_ENABLE_COLUMN_METADATA  
-  if( pzOrigDb ){
-    assert( pzOrigTab && pzOrigCol );
-    *pzOrigDb = zOrigDb;
-    *pzOrigTab = zOrigTab;
-    *pzOrigCol = zOrigCol;
-  }
-#endif
-  return zType;
-}
-
-/*
-** Generate code that will tell the VDBE the declaration types of columns
-** in the result set.
-*/
-static void generateColumnTypes(
-  Parse *pParse,      /* Parser context */
-  SrcList *pTabList,  /* List of tables */
-  ExprList *pEList    /* Expressions defining the result set */
-){
-#ifndef SQLITE_OMIT_DECLTYPE
-  Vdbe *v = pParse->pVdbe;
-  int i;
-  NameContext sNC;
-  sNC.pSrcList = pTabList;
-  sNC.pParse = pParse;
-  sNC.pNext = 0;
-  for(i=0; i<pEList->nExpr; i++){
-    Expr *p = pEList->a[i].pExpr;
-    const char *zType;
-#ifdef SQLITE_ENABLE_COLUMN_METADATA
-    const char *zOrigDb = 0;
-    const char *zOrigTab = 0;
-    const char *zOrigCol = 0;
-    zType = columnType(&sNC, p, &zOrigDb, &zOrigTab, &zOrigCol);
-
-    /* The vdbe must make its own copy of the column-type and other 
-    ** column specific strings, in case the schema is reset before this
-    ** virtual machine is deleted.
-    */
-    tdsqlite3VdbeSetColName(v, i, COLNAME_DATABASE, zOrigDb, SQLITE_TRANSIENT);
-    tdsqlite3VdbeSetColName(v, i, COLNAME_TABLE, zOrigTab, SQLITE_TRANSIENT);
-    tdsqlite3VdbeSetColName(v, i, COLNAME_COLUMN, zOrigCol, SQLITE_TRANSIENT);
-#else
-    zType = columnType(&sNC, p, 0, 0, 0);
-#endif
-    tdsqlite3VdbeSetColName(v, i, COLNAME_DECLTYPE, zType, SQLITE_TRANSIENT);
-  }
-#endif /* !defined(SQLITE_OMIT_DECLTYPE) */
-}
-
-
-/*
-** Compute the column names for a SELECT statement.
-**
-** The only guarantee that SQLite makes about column names is that if the
-** column has an AS clause assigning it a name, that will be the name used.
-** That is the only documented guarantee.  However, countless applications
-** developed over the years have made baseless assumptions about column names
-** and will break if those assumptions changes.  Hence, use extreme caution
-** when modifying this routine to avoid breaking legacy.
-**
-** See Also: tdsqlite3ColumnsFromExprList()
-**
-** The PRAGMA short_column_names and PRAGMA full_column_names settings are
-** deprecated.  The default setting is short=ON, full=OFF.  99.9% of all
-** applications should operate this way.  Nevertheless, we need to support the
-** other modes for legacy:
-**
-**    short=OFF, full=OFF:      Column name is the text of the expression has it
-**                              originally appears in the SELECT statement.  In
-**                              other words, the zSpan of the result expression.
-**
-**    short=ON, full=OFF:       (This is the default setting).  If the result
-**                              refers directly to a table column, then the
-**                              result column name is just the table column
-**                              name: COLUMN.  Otherwise use zSpan.
-**
-**    full=ON, short=ANY:       If the result refers directly to a table column,
-**                              then the result column name with the table name
-**                              prefix, ex: TABLE.COLUMN.  Otherwise use zSpan.
-*/
-static void generateColumnNames(
-  Parse *pParse,      /* Parser context */
-  Select *pSelect     /* Generate column names for this SELECT statement */
-){
-  Vdbe *v = pParse->pVdbe;
-  int i;
-  Table *pTab;
-  SrcList *pTabList;
-  ExprList *pEList;
-  tdsqlite3 *db = pParse->db;
-  int fullName;    /* TABLE.COLUMN if no AS clause and is a direct table ref */
-  int srcName;     /* COLUMN or TABLE.COLUMN if no AS clause and is direct */
-
-#ifndef SQLITE_OMIT_EXPLAIN
-  /* If this is an EXPLAIN, skip this step */
-  if( pParse->explain ){
-    return;
-  }
-#endif
-
-  if( pParse->colNamesSet ) return;
-  /* Column names are determined by the left-most term of a compound select */
-  while( pSelect->pPrior ) pSelect = pSelect->pPrior;
-  SELECTTRACE(1,pParse,pSelect,("generating column names\n"));
-  pTabList = pSelect->pSrc;
-  pEList = pSelect->pEList;
-  assert( v!=0 );
-  assert( pTabList!=0 );
-  pParse->colNamesSet = 1;
-  fullName = (db->flags & SQLITE_FullColNames)!=0;
-  srcName = (db->flags & SQLITE_ShortColNames)!=0 || fullName;
-  tdsqlite3VdbeSetNumCols(v, pEList->nExpr);
-  for(i=0; i<pEList->nExpr; i++){
-    Expr *p = pEList->a[i].pExpr;
-
-    assert( p!=0 );
-    assert( p->op!=TK_AGG_COLUMN );  /* Agg processing has not run yet */
-    assert( p->op!=TK_COLUMN || p->y.pTab!=0 ); /* Covering idx not yet coded */
-    if( pEList->a[i].zEName && pEList->a[i].eEName==ENAME_NAME ){
-      /* An AS clause always takes first priority */
-      char *zName = pEList->a[i].zEName;
-      tdsqlite3VdbeSetColName(v, i, COLNAME_NAME, zName, SQLITE_TRANSIENT);
-    }else if( srcName && p->op==TK_COLUMN ){
-      char *zCol;
-      int iCol = p->iColumn;
-      pTab = p->y.pTab;
-      assert( pTab!=0 );
-      if( iCol<0 ) iCol = pTab->iPKey;
-      assert( iCol==-1 || (iCol>=0 && iCol<pTab->nCol) );
-      if( iCol<0 ){
-        zCol = "rowid";
-      }else{
-        zCol = pTab->aCol[iCol].zName;
-      }
-      if( fullName ){
-        char *zName = 0;
-        zName = tdsqlite3MPrintf(db, "%s.%s", pTab->zName, zCol);
-        tdsqlite3VdbeSetColName(v, i, COLNAME_NAME, zName, SQLITE_DYNAMIC);
-      }else{
-        tdsqlite3VdbeSetColName(v, i, COLNAME_NAME, zCol, SQLITE_TRANSIENT);
-      }
-    }else{
-      const char *z = pEList->a[i].zEName;
-      z = z==0 ? tdsqlite3MPrintf(db, "column%d", i+1) : tdsqlite3DbStrDup(db, z);
-      tdsqlite3VdbeSetColName(v, i, COLNAME_NAME, z, SQLITE_DYNAMIC);
-    }
-  }
-  generateColumnTypes(pParse, pTabList, pEList);
-}
-
-/*
-** Given an expression list (which is really the list of expressions
-** that form the result set of a SELECT statement) compute appropriate
-** column names for a table that would hold the expression list.
-**
-** All column names will be unique.
-**
-** Only the column names are computed.  Column.zType, Column.zColl,
-** and other fields of Column are zeroed.
-**
-** Return SQLITE_OK on success.  If a memory allocation error occurs,
-** store NULL in *paCol and 0 in *pnCol and return SQLITE_NOMEM.
-**
-** The only guarantee that SQLite makes about column names is that if the
-** column has an AS clause assigning it a name, that will be the name used.
-** That is the only documented guarantee.  However, countless applications
-** developed over the years have made baseless assumptions about column names
-** and will break if those assumptions changes.  Hence, use extreme caution
-** when modifying this routine to avoid breaking legacy.
-**
-** See Also: generateColumnNames()
-*/
-SQLITE_PRIVATE int tdsqlite3ColumnsFromExprList(
-  Parse *pParse,          /* Parsing context */
-  ExprList *pEList,       /* Expr list from which to derive column names */
-  i16 *pnCol,             /* Write the number of columns here */
-  Column **paCol          /* Write the new column list here */
-){
-  tdsqlite3 *db = pParse->db;   /* Database connection */
-  int i, j;                   /* Loop counters */
-  u32 cnt;                    /* Index added to make the name unique */
-  Column *aCol, *pCol;        /* For looping over result columns */
-  int nCol;                   /* Number of columns in the result set */
-  char *zName;                /* Column name */
-  int nName;                  /* Size of name in zName[] */
-  Hash ht;                    /* Hash table of column names */
-
-  tdsqlite3HashInit(&ht);
-  if( pEList ){
-    nCol = pEList->nExpr;
-    aCol = tdsqlite3DbMallocZero(db, sizeof(aCol[0])*nCol);
-    testcase( aCol==0 );
-    if( nCol>32767 ) nCol = 32767;
-  }else{
-    nCol = 0;
-    aCol = 0;
-  }
-  assert( nCol==(i16)nCol );
-  *pnCol = nCol;
-  *paCol = aCol;
-
-  for(i=0, pCol=aCol; i<nCol && !db->mallocFailed; i++, pCol++){
-    /* Get an appropriate name for the column
-    */
-    if( (zName = pEList->a[i].zEName)!=0 && pEList->a[i].eEName==ENAME_NAME ){
-      /* If the column contains an "AS <name>" phrase, use <name> as the name */
-    }else{
-      Expr *pColExpr = tdsqlite3ExprSkipCollateAndLikely(pEList->a[i].pExpr);
-      while( pColExpr->op==TK_DOT ){
-        pColExpr = pColExpr->pRight;
-        assert( pColExpr!=0 );
-      }
-      if( pColExpr->op==TK_COLUMN ){
-        /* For columns use the column name name */
-        int iCol = pColExpr->iColumn;
-        Table *pTab = pColExpr->y.pTab;
-        assert( pTab!=0 );
-        if( iCol<0 ) iCol = pTab->iPKey;
-        zName = iCol>=0 ? pTab->aCol[iCol].zName : "rowid";
-      }else if( pColExpr->op==TK_ID ){
-        assert( !ExprHasProperty(pColExpr, EP_IntValue) );
-        zName = pColExpr->u.zToken;
-      }else{
-        /* Use the original text of the column expression as its name */
-        zName = pEList->a[i].zEName;
-      }
-    }
-    if( zName && !tdsqlite3IsTrueOrFalse(zName) ){
-      zName = tdsqlite3DbStrDup(db, zName);
-    }else{
-      zName = tdsqlite3MPrintf(db,"column%d",i+1);
-    }
-
-    /* Make sure the column name is unique.  If the name is not unique,
-    ** append an integer to the name so that it becomes unique.
-    */
-    cnt = 0;
-    while( zName && tdsqlite3HashFind(&ht, zName)!=0 ){
-      nName = tdsqlite3Strlen30(zName);
-      if( nName>0 ){
-        for(j=nName-1; j>0 && tdsqlite3Isdigit(zName[j]); j--){}
-        if( zName[j]==':' ) nName = j;
-      }
-      zName = tdsqlite3MPrintf(db, "%.*z:%u", nName, zName, ++cnt);
-      if( cnt>3 ) tdsqlite3_randomness(sizeof(cnt), &cnt);
-    }
-    pCol->zName = zName;
-    tdsqlite3ColumnPropertiesFromName(0, pCol);
-    if( zName && tdsqlite3HashInsert(&ht, zName, pCol)==pCol ){
-      tdsqlite3OomFault(db);
-    }
-  }
-  tdsqlite3HashClear(&ht);
-  if( db->mallocFailed ){
-    for(j=0; j<i; j++){
-      tdsqlite3DbFree(db, aCol[j].zName);
-    }
-    tdsqlite3DbFree(db, aCol);
-    *paCol = 0;
-    *pnCol = 0;
-    return SQLITE_NOMEM_BKPT;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Add type and collation information to a column list based on
-** a SELECT statement.
-** 
-** The column list presumably came from selectColumnNamesFromExprList().
-** The column list has only names, not types or collations.  This
-** routine goes through and adds the types and collations.
-**
-** This routine requires that all identifiers in the SELECT
-** statement be resolved.
-*/
-SQLITE_PRIVATE void tdsqlite3SelectAddColumnTypeAndCollation(
-  Parse *pParse,        /* Parsing contexts */
-  Table *pTab,          /* Add column type information to this table */
-  Select *pSelect,      /* SELECT used to determine types and collations */
-  char aff              /* Default affinity for columns */
-){
-  tdsqlite3 *db = pParse->db;
-  NameContext sNC;
-  Column *pCol;
-  CollSeq *pColl;
-  int i;
-  Expr *p;
-  struct ExprList_item *a;
-
-  assert( pSelect!=0 );
-  assert( (pSelect->selFlags & SF_Resolved)!=0 );
-  assert( pTab->nCol==pSelect->pEList->nExpr || db->mallocFailed );
-  if( db->mallocFailed ) return;
-  memset(&sNC, 0, sizeof(sNC));
-  sNC.pSrcList = pSelect->pSrc;
-  a = pSelect->pEList->a;
-  for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
-    const char *zType;
-    int n, m;
-    p = a[i].pExpr;
-    zType = columnType(&sNC, p, 0, 0, 0);
-    /* pCol->szEst = ... // Column size est for SELECT tables never used */
-    pCol->affinity = tdsqlite3ExprAffinity(p);
-    if( zType ){
-      m = tdsqlite3Strlen30(zType);
-      n = tdsqlite3Strlen30(pCol->zName);
-      pCol->zName = tdsqlite3DbReallocOrFree(db, pCol->zName, n+m+2);
-      if( pCol->zName ){
-        memcpy(&pCol->zName[n+1], zType, m+1);
-        pCol->colFlags |= COLFLAG_HASTYPE;
-      }
-    }
-    if( pCol->affinity<=SQLITE_AFF_NONE ) pCol->affinity = aff;
-    pColl = tdsqlite3ExprCollSeq(pParse, p);
-    if( pColl && pCol->zColl==0 ){
-      pCol->zColl = tdsqlite3DbStrDup(db, pColl->zName);
-    }
-  }
-  pTab->szTabRow = 1; /* Any non-zero value works */
-}
-
-/*
-** Given a SELECT statement, generate a Table structure that describes
-** the result set of that SELECT.
-*/
-SQLITE_PRIVATE Table *tdsqlite3ResultSetOfSelect(Parse *pParse, Select *pSelect, char aff){
-  Table *pTab;
-  tdsqlite3 *db = pParse->db;
-  u64 savedFlags;
-
-  savedFlags = db->flags;
-  db->flags &= ~(u64)SQLITE_FullColNames;
-  db->flags |= SQLITE_ShortColNames;
-  tdsqlite3SelectPrep(pParse, pSelect, 0);
-  db->flags = savedFlags;
-  if( pParse->nErr ) return 0;
-  while( pSelect->pPrior ) pSelect = pSelect->pPrior;
-  pTab = tdsqlite3DbMallocZero(db, sizeof(Table) );
-  if( pTab==0 ){
-    return 0;
-  }
-  pTab->nTabRef = 1;
-  pTab->zName = 0;
-  pTab->nRowLogEst = 200; assert( 200==tdsqlite3LogEst(1048576) );
-  tdsqlite3ColumnsFromExprList(pParse, pSelect->pEList, &pTab->nCol, &pTab->aCol);
-  tdsqlite3SelectAddColumnTypeAndCollation(pParse, pTab, pSelect, aff);
-  pTab->iPKey = -1;
-  if( db->mallocFailed ){
-    tdsqlite3DeleteTable(db, pTab);
-    return 0;
-  }
-  return pTab;
-}
-
-/*
-** Get a VDBE for the given parser context.  Create a new one if necessary.
-** If an error occurs, return NULL and leave a message in pParse.
-*/
-SQLITE_PRIVATE Vdbe *tdsqlite3GetVdbe(Parse *pParse){
-  if( pParse->pVdbe ){
-    return pParse->pVdbe;
-  }
-  if( pParse->pToplevel==0
-   && OptimizationEnabled(pParse->db,SQLITE_FactorOutConst)
-  ){
-    pParse->okConstFactor = 1;
-  }
-  return tdsqlite3VdbeCreate(pParse);
-}
-
-
-/*
-** Compute the iLimit and iOffset fields of the SELECT based on the
-** pLimit expressions.  pLimit->pLeft and pLimit->pRight hold the expressions
-** that appear in the original SQL statement after the LIMIT and OFFSET
-** keywords.  Or NULL if those keywords are omitted. iLimit and iOffset 
-** are the integer memory register numbers for counters used to compute 
-** the limit and offset.  If there is no limit and/or offset, then 
-** iLimit and iOffset are negative.
-**
-** This routine changes the values of iLimit and iOffset only if
-** a limit or offset is defined by pLimit->pLeft and pLimit->pRight.  iLimit
-** and iOffset should have been preset to appropriate default values (zero)
-** prior to calling this routine.
-**
-** The iOffset register (if it exists) is initialized to the value
-** of the OFFSET.  The iLimit register is initialized to LIMIT.  Register
-** iOffset+1 is initialized to LIMIT+OFFSET.
-**
-** Only if pLimit->pLeft!=0 do the limit registers get
-** redefined.  The UNION ALL operator uses this property to force
-** the reuse of the same limit and offset registers across multiple
-** SELECT statements.
-*/
-static void computeLimitRegisters(Parse *pParse, Select *p, int iBreak){
-  Vdbe *v = 0;
-  int iLimit = 0;
-  int iOffset;
-  int n;
-  Expr *pLimit = p->pLimit;
-
-  if( p->iLimit ) return;
-
-  /* 
-  ** "LIMIT -1" always shows all rows.  There is some
-  ** controversy about what the correct behavior should be.
-  ** The current implementation interprets "LIMIT 0" to mean
-  ** no rows.
-  */
-  if( pLimit ){
-    assert( pLimit->op==TK_LIMIT );
-    assert( pLimit->pLeft!=0 );
-    p->iLimit = iLimit = ++pParse->nMem;
-    v = tdsqlite3GetVdbe(pParse);
-    assert( v!=0 );
-    if( tdsqlite3ExprIsInteger(pLimit->pLeft, &n) ){
-      tdsqlite3VdbeAddOp2(v, OP_Integer, n, iLimit);
-      VdbeComment((v, "LIMIT counter"));
-      if( n==0 ){
-        tdsqlite3VdbeGoto(v, iBreak);
-      }else if( n>=0 && p->nSelectRow>tdsqlite3LogEst((u64)n) ){
-        p->nSelectRow = tdsqlite3LogEst((u64)n);
-        p->selFlags |= SF_FixedLimit;
-      }
-    }else{
-      tdsqlite3ExprCode(pParse, pLimit->pLeft, iLimit);
-      tdsqlite3VdbeAddOp1(v, OP_MustBeInt, iLimit); VdbeCoverage(v);
-      VdbeComment((v, "LIMIT counter"));
-      tdsqlite3VdbeAddOp2(v, OP_IfNot, iLimit, iBreak); VdbeCoverage(v);
-    }
-    if( pLimit->pRight ){
-      p->iOffset = iOffset = ++pParse->nMem;
-      pParse->nMem++;   /* Allocate an extra register for limit+offset */
-      tdsqlite3ExprCode(pParse, pLimit->pRight, iOffset);
-      tdsqlite3VdbeAddOp1(v, OP_MustBeInt, iOffset); VdbeCoverage(v);
-      VdbeComment((v, "OFFSET counter"));
-      tdsqlite3VdbeAddOp3(v, OP_OffsetLimit, iLimit, iOffset+1, iOffset);
-      VdbeComment((v, "LIMIT+OFFSET"));
-    }
-  }
-}
-
-#ifndef SQLITE_OMIT_COMPOUND_SELECT
-/*
-** Return the appropriate collating sequence for the iCol-th column of
-** the result set for the compound-select statement "p".  Return NULL if
-** the column has no default collating sequence.
-**
-** The collating sequence for the compound select is taken from the
-** left-most term of the select that has a collating sequence.
-*/
-static CollSeq *multiSelectCollSeq(Parse *pParse, Select *p, int iCol){
-  CollSeq *pRet;
-  if( p->pPrior ){
-    pRet = multiSelectCollSeq(pParse, p->pPrior, iCol);
-  }else{
-    pRet = 0;
-  }
-  assert( iCol>=0 );
-  /* iCol must be less than p->pEList->nExpr.  Otherwise an error would
-  ** have been thrown during name resolution and we would not have gotten
-  ** this far */
-  if( pRet==0 && ALWAYS(iCol<p->pEList->nExpr) ){
-    pRet = tdsqlite3ExprCollSeq(pParse, p->pEList->a[iCol].pExpr);
-  }
-  return pRet;
-}
-
-/*
-** The select statement passed as the second parameter is a compound SELECT
-** with an ORDER BY clause. This function allocates and returns a KeyInfo
-** structure suitable for implementing the ORDER BY.
-**
-** Space to hold the KeyInfo structure is obtained from malloc. The calling
-** function is responsible for ensuring that this structure is eventually
-** freed.
-*/
-static KeyInfo *multiSelectOrderByKeyInfo(Parse *pParse, Select *p, int nExtra){
-  ExprList *pOrderBy = p->pOrderBy;
-  int nOrderBy = p->pOrderBy->nExpr;
-  tdsqlite3 *db = pParse->db;
-  KeyInfo *pRet = tdsqlite3KeyInfoAlloc(db, nOrderBy+nExtra, 1);
-  if( pRet ){
-    int i;
-    for(i=0; i<nOrderBy; i++){
-      struct ExprList_item *pItem = &pOrderBy->a[i];
-      Expr *pTerm = pItem->pExpr;
-      CollSeq *pColl;
-
-      if( pTerm->flags & EP_Collate ){
-        pColl = tdsqlite3ExprCollSeq(pParse, pTerm);
-      }else{
-        pColl = multiSelectCollSeq(pParse, p, pItem->u.x.iOrderByCol-1);
-        if( pColl==0 ) pColl = db->pDfltColl;
-        pOrderBy->a[i].pExpr =
-          tdsqlite3ExprAddCollateString(pParse, pTerm, pColl->zName);
-      }
-      assert( tdsqlite3KeyInfoIsWriteable(pRet) );
-      pRet->aColl[i] = pColl;
-      pRet->aSortFlags[i] = pOrderBy->a[i].sortFlags;
-    }
-  }
-
-  return pRet;
-}
-
-#ifndef SQLITE_OMIT_CTE
-/*
-** This routine generates VDBE code to compute the content of a WITH RECURSIVE
-** query of the form:
-**
-**   <recursive-table> AS (<setup-query> UNION [ALL] <recursive-query>)
-**                         \___________/             \_______________/
-**                           p->pPrior                      p
-**
-**
-** There is exactly one reference to the recursive-table in the FROM clause
-** of recursive-query, marked with the SrcList->a[].fg.isRecursive flag.
-**
-** The setup-query runs once to generate an initial set of rows that go
-** into a Queue table.  Rows are extracted from the Queue table one by
-** one.  Each row extracted from Queue is output to pDest.  Then the single
-** extracted row (now in the iCurrent table) becomes the content of the
-** recursive-table for a recursive-query run.  The output of the recursive-query
-** is added back into the Queue table.  Then another row is extracted from Queue
-** and the iteration continues until the Queue table is empty.
-**
-** If the compound query operator is UNION then no duplicate rows are ever
-** inserted into the Queue table.  The iDistinct table keeps a copy of all rows
-** that have ever been inserted into Queue and causes duplicates to be
-** discarded.  If the operator is UNION ALL, then duplicates are allowed.
-** 
-** If the query has an ORDER BY, then entries in the Queue table are kept in
-** ORDER BY order and the first entry is extracted for each cycle.  Without
-** an ORDER BY, the Queue table is just a FIFO.
-**
-** If a LIMIT clause is provided, then the iteration stops after LIMIT rows
-** have been output to pDest.  A LIMIT of zero means to output no rows and a
-** negative LIMIT means to output all rows.  If there is also an OFFSET clause
-** with a positive value, then the first OFFSET outputs are discarded rather
-** than being sent to pDest.  The LIMIT count does not begin until after OFFSET
-** rows have been skipped.
-*/
-static void generateWithRecursiveQuery(
-  Parse *pParse,        /* Parsing context */
-  Select *p,            /* The recursive SELECT to be coded */
-  SelectDest *pDest     /* What to do with query results */
-){
-  SrcList *pSrc = p->pSrc;      /* The FROM clause of the recursive query */
-  int nCol = p->pEList->nExpr;  /* Number of columns in the recursive table */
-  Vdbe *v = pParse->pVdbe;      /* The prepared statement under construction */
-  Select *pSetup = p->pPrior;   /* The setup query */
-  int addrTop;                  /* Top of the loop */
-  int addrCont, addrBreak;      /* CONTINUE and BREAK addresses */
-  int iCurrent = 0;             /* The Current table */
-  int regCurrent;               /* Register holding Current table */
-  int iQueue;                   /* The Queue table */
-  int iDistinct = 0;            /* To ensure unique results if UNION */
-  int eDest = SRT_Fifo;         /* How to write to Queue */
-  SelectDest destQueue;         /* SelectDest targetting the Queue table */
-  int i;                        /* Loop counter */
-  int rc;                       /* Result code */
-  ExprList *pOrderBy;           /* The ORDER BY clause */
-  Expr *pLimit;                 /* Saved LIMIT and OFFSET */
-  int regLimit, regOffset;      /* Registers used by LIMIT and OFFSET */
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  if( p->pWin ){
-    tdsqlite3ErrorMsg(pParse, "cannot use window functions in recursive queries");
-    return;
-  }
-#endif
-
-  /* Obtain authorization to do a recursive query */
-  if( tdsqlite3AuthCheck(pParse, SQLITE_RECURSIVE, 0, 0, 0) ) return;
-
-  /* Process the LIMIT and OFFSET clauses, if they exist */
-  addrBreak = tdsqlite3VdbeMakeLabel(pParse);
-  p->nSelectRow = 320;  /* 4 billion rows */
-  computeLimitRegisters(pParse, p, addrBreak);
-  pLimit = p->pLimit;
-  regLimit = p->iLimit;
-  regOffset = p->iOffset;
-  p->pLimit = 0;
-  p->iLimit = p->iOffset = 0;
-  pOrderBy = p->pOrderBy;
-
-  /* Locate the cursor number of the Current table */
-  for(i=0; ALWAYS(i<pSrc->nSrc); i++){
-    if( pSrc->a[i].fg.isRecursive ){
-      iCurrent = pSrc->a[i].iCursor;
-      break;
-    }
-  }
-
-  /* Allocate cursors numbers for Queue and Distinct.  The cursor number for
-  ** the Distinct table must be exactly one greater than Queue in order
-  ** for the SRT_DistFifo and SRT_DistQueue destinations to work. */
-  iQueue = pParse->nTab++;
-  if( p->op==TK_UNION ){
-    eDest = pOrderBy ? SRT_DistQueue : SRT_DistFifo;
-    iDistinct = pParse->nTab++;
-  }else{
-    eDest = pOrderBy ? SRT_Queue : SRT_Fifo;
-  }
-  tdsqlite3SelectDestInit(&destQueue, eDest, iQueue);
-
-  /* Allocate cursors for Current, Queue, and Distinct. */
-  regCurrent = ++pParse->nMem;
-  tdsqlite3VdbeAddOp3(v, OP_OpenPseudo, iCurrent, regCurrent, nCol);
-  if( pOrderBy ){
-    KeyInfo *pKeyInfo = multiSelectOrderByKeyInfo(pParse, p, 1);
-    tdsqlite3VdbeAddOp4(v, OP_OpenEphemeral, iQueue, pOrderBy->nExpr+2, 0,
-                      (char*)pKeyInfo, P4_KEYINFO);
-    destQueue.pOrderBy = pOrderBy;
-  }else{
-    tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, iQueue, nCol);
-  }
-  VdbeComment((v, "Queue table"));
-  if( iDistinct ){
-    p->addrOpenEphm[0] = tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, iDistinct, 0);
-    p->selFlags |= SF_UsesEphemeral;
-  }
-
-  /* Detach the ORDER BY clause from the compound SELECT */
-  p->pOrderBy = 0;
-
-  /* Store the results of the setup-query in Queue. */
-  pSetup->pNext = 0;
-  ExplainQueryPlan((pParse, 1, "SETUP"));
-  rc = tdsqlite3Select(pParse, pSetup, &destQueue);
-  pSetup->pNext = p;
-  if( rc ) goto end_of_recursive_query;
-
-  /* Find the next row in the Queue and output that row */
-  addrTop = tdsqlite3VdbeAddOp2(v, OP_Rewind, iQueue, addrBreak); VdbeCoverage(v);
-
-  /* Transfer the next row in Queue over to Current */
-  tdsqlite3VdbeAddOp1(v, OP_NullRow, iCurrent); /* To reset column cache */
-  if( pOrderBy ){
-    tdsqlite3VdbeAddOp3(v, OP_Column, iQueue, pOrderBy->nExpr+1, regCurrent);
-  }else{
-    tdsqlite3VdbeAddOp2(v, OP_RowData, iQueue, regCurrent);
-  }
-  tdsqlite3VdbeAddOp1(v, OP_Delete, iQueue);
-
-  /* Output the single row in Current */
-  addrCont = tdsqlite3VdbeMakeLabel(pParse);
-  codeOffset(v, regOffset, addrCont);
-  selectInnerLoop(pParse, p, iCurrent,
-      0, 0, pDest, addrCont, addrBreak);
-  if( regLimit ){
-    tdsqlite3VdbeAddOp2(v, OP_DecrJumpZero, regLimit, addrBreak);
-    VdbeCoverage(v);
-  }
-  tdsqlite3VdbeResolveLabel(v, addrCont);
-
-  /* Execute the recursive SELECT taking the single row in Current as
-  ** the value for the recursive-table. Store the results in the Queue.
-  */
-  if( p->selFlags & SF_Aggregate ){
-    tdsqlite3ErrorMsg(pParse, "recursive aggregate queries not supported");
-  }else{
-    p->pPrior = 0;
-    ExplainQueryPlan((pParse, 1, "RECURSIVE STEP"));
-    tdsqlite3Select(pParse, p, &destQueue);
-    assert( p->pPrior==0 );
-    p->pPrior = pSetup;
-  }
-
-  /* Keep running the loop until the Queue is empty */
-  tdsqlite3VdbeGoto(v, addrTop);
-  tdsqlite3VdbeResolveLabel(v, addrBreak);
-
-end_of_recursive_query:
-  tdsqlite3ExprListDelete(pParse->db, p->pOrderBy);
-  p->pOrderBy = pOrderBy;
-  p->pLimit = pLimit;
-  return;
-}
-#endif /* SQLITE_OMIT_CTE */
-
-/* Forward references */
-static int multiSelectOrderBy(
-  Parse *pParse,        /* Parsing context */
-  Select *p,            /* The right-most of SELECTs to be coded */
-  SelectDest *pDest     /* What to do with query results */
-);
-
-/*
-** Handle the special case of a compound-select that originates from a
-** VALUES clause.  By handling this as a special case, we avoid deep
-** recursion, and thus do not need to enforce the SQLITE_LIMIT_COMPOUND_SELECT
-** on a VALUES clause.
-**
-** Because the Select object originates from a VALUES clause:
-**   (1) There is no LIMIT or OFFSET or else there is a LIMIT of exactly 1
-**   (2) All terms are UNION ALL
-**   (3) There is no ORDER BY clause
-**
-** The "LIMIT of exactly 1" case of condition (1) comes about when a VALUES
-** clause occurs within scalar expression (ex: "SELECT (VALUES(1),(2),(3))").
-** The tdsqlite3CodeSubselect will have added the LIMIT 1 clause in tht case.
-** Since the limit is exactly 1, we only need to evalutes the left-most VALUES.
-*/
-static int multiSelectValues(
-  Parse *pParse,        /* Parsing context */
-  Select *p,            /* The right-most of SELECTs to be coded */
-  SelectDest *pDest     /* What to do with query results */
-){
-  int nRow = 1;
-  int rc = 0;
-  int bShowAll = p->pLimit==0;
-  assert( p->selFlags & SF_MultiValue );
-  do{
-    assert( p->selFlags & SF_Values );
-    assert( p->op==TK_ALL || (p->op==TK_SELECT && p->pPrior==0) );
-    assert( p->pNext==0 || p->pEList->nExpr==p->pNext->pEList->nExpr );
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    if( p->pWin ) return -1;
-#endif
-    if( p->pPrior==0 ) break;
-    assert( p->pPrior->pNext==p );
-    p = p->pPrior;
-    nRow += bShowAll;
-  }while(1);
-  ExplainQueryPlan((pParse, 0, "SCAN %d CONSTANT ROW%s", nRow,
-                    nRow==1 ? "" : "S"));
-  while( p ){
-    selectInnerLoop(pParse, p, -1, 0, 0, pDest, 1, 1);
-    if( !bShowAll ) break;
-    p->nSelectRow = nRow;
-    p = p->pNext;
-  }
-  return rc;
-}
-
-/*
-** This routine is called to process a compound query form from
-** two or more separate queries using UNION, UNION ALL, EXCEPT, or
-** INTERSECT
-**
-** "p" points to the right-most of the two queries.  the query on the
-** left is p->pPrior.  The left query could also be a compound query
-** in which case this routine will be called recursively. 
-**
-** The results of the total query are to be written into a destination
-** of type eDest with parameter iParm.
-**
-** Example 1:  Consider a three-way compound SQL statement.
-**
-**     SELECT a FROM t1 UNION SELECT b FROM t2 UNION SELECT c FROM t3
-**
-** This statement is parsed up as follows:
-**
-**     SELECT c FROM t3
-**      |
-**      `----->  SELECT b FROM t2
-**                |
-**                `------>  SELECT a FROM t1
-**
-** The arrows in the diagram above represent the Select.pPrior pointer.
-** So if this routine is called with p equal to the t3 query, then
-** pPrior will be the t2 query.  p->op will be TK_UNION in this case.
-**
-** Notice that because of the way SQLite parses compound SELECTs, the
-** individual selects always group from left to right.
-*/
-static int multiSelect(
-  Parse *pParse,        /* Parsing context */
-  Select *p,            /* The right-most of SELECTs to be coded */
-  SelectDest *pDest     /* What to do with query results */
-){
-  int rc = SQLITE_OK;   /* Success code from a subroutine */
-  Select *pPrior;       /* Another SELECT immediately to our left */
-  Vdbe *v;              /* Generate code to this VDBE */
-  SelectDest dest;      /* Alternative data destination */
-  Select *pDelete = 0;  /* Chain of simple selects to delete */
-  tdsqlite3 *db;          /* Database connection */
-
-  /* Make sure there is no ORDER BY or LIMIT clause on prior SELECTs.  Only
-  ** the last (right-most) SELECT in the series may have an ORDER BY or LIMIT.
-  */
-  assert( p && p->pPrior );  /* Calling function guarantees this much */
-  assert( (p->selFlags & SF_Recursive)==0 || p->op==TK_ALL || p->op==TK_UNION );
-  assert( p->selFlags & SF_Compound );
-  db = pParse->db;
-  pPrior = p->pPrior;
-  dest = *pDest;
-  if( pPrior->pOrderBy || pPrior->pLimit ){
-    tdsqlite3ErrorMsg(pParse,"%s clause should come after %s not before",
-      pPrior->pOrderBy!=0 ? "ORDER BY" : "LIMIT", selectOpName(p->op));
-    rc = 1;
-    goto multi_select_end;
-  }
-
-  v = tdsqlite3GetVdbe(pParse);
-  assert( v!=0 );  /* The VDBE already created by calling function */
-
-  /* Create the destination temporary table if necessary
-  */
-  if( dest.eDest==SRT_EphemTab ){
-    assert( p->pEList );
-    tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, dest.iSDParm, p->pEList->nExpr);
-    dest.eDest = SRT_Table;
-  }
-
-  /* Special handling for a compound-select that originates as a VALUES clause.
-  */
-  if( p->selFlags & SF_MultiValue ){
-    rc = multiSelectValues(pParse, p, &dest);
-    if( rc>=0 ) goto multi_select_end;
-    rc = SQLITE_OK;
-  }
-
-  /* Make sure all SELECTs in the statement have the same number of elements
-  ** in their result sets.
-  */
-  assert( p->pEList && pPrior->pEList );
-  assert( p->pEList->nExpr==pPrior->pEList->nExpr );
-
-#ifndef SQLITE_OMIT_CTE
-  if( p->selFlags & SF_Recursive ){
-    generateWithRecursiveQuery(pParse, p, &dest);
-  }else
-#endif
-
-  /* Compound SELECTs that have an ORDER BY clause are handled separately.
-  */
-  if( p->pOrderBy ){
-    return multiSelectOrderBy(pParse, p, pDest);
-  }else{
-
-#ifndef SQLITE_OMIT_EXPLAIN
-    if( pPrior->pPrior==0 ){
-      ExplainQueryPlan((pParse, 1, "COMPOUND QUERY"));
-      ExplainQueryPlan((pParse, 1, "LEFT-MOST SUBQUERY"));
-    }
-#endif
-
-    /* Generate code for the left and right SELECT statements.
-    */
-    switch( p->op ){
-      case TK_ALL: {
-        int addr = 0;
-        int nLimit;
-        assert( !pPrior->pLimit );
-        pPrior->iLimit = p->iLimit;
-        pPrior->iOffset = p->iOffset;
-        pPrior->pLimit = p->pLimit;
-        rc = tdsqlite3Select(pParse, pPrior, &dest);
-        p->pLimit = 0;
-        if( rc ){
-          goto multi_select_end;
-        }
-        p->pPrior = 0;
-        p->iLimit = pPrior->iLimit;
-        p->iOffset = pPrior->iOffset;
-        if( p->iLimit ){
-          addr = tdsqlite3VdbeAddOp1(v, OP_IfNot, p->iLimit); VdbeCoverage(v);
-          VdbeComment((v, "Jump ahead if LIMIT reached"));
-          if( p->iOffset ){
-            tdsqlite3VdbeAddOp3(v, OP_OffsetLimit,
-                              p->iLimit, p->iOffset+1, p->iOffset);
-          }
-        }
-        ExplainQueryPlan((pParse, 1, "UNION ALL"));
-        rc = tdsqlite3Select(pParse, p, &dest);
-        testcase( rc!=SQLITE_OK );
-        pDelete = p->pPrior;
-        p->pPrior = pPrior;
-        p->nSelectRow = tdsqlite3LogEstAdd(p->nSelectRow, pPrior->nSelectRow);
-        if( pPrior->pLimit
-         && tdsqlite3ExprIsInteger(pPrior->pLimit->pLeft, &nLimit)
-         && nLimit>0 && p->nSelectRow > tdsqlite3LogEst((u64)nLimit) 
-        ){
-          p->nSelectRow = tdsqlite3LogEst((u64)nLimit);
-        }
-        if( addr ){
-          tdsqlite3VdbeJumpHere(v, addr);
-        }
-        break;
-      }
-      case TK_EXCEPT:
-      case TK_UNION: {
-        int unionTab;    /* Cursor number of the temp table holding result */
-        u8 op = 0;       /* One of the SRT_ operations to apply to self */
-        int priorOp;     /* The SRT_ operation to apply to prior selects */
-        Expr *pLimit;    /* Saved values of p->nLimit  */
-        int addr;
-        SelectDest uniondest;
-  
-        testcase( p->op==TK_EXCEPT );
-        testcase( p->op==TK_UNION );
-        priorOp = SRT_Union;
-        if( dest.eDest==priorOp ){
-          /* We can reuse a temporary table generated by a SELECT to our
-          ** right.
-          */
-          assert( p->pLimit==0 );      /* Not allowed on leftward elements */
-          unionTab = dest.iSDParm;
-        }else{
-          /* We will need to create our own temporary table to hold the
-          ** intermediate results.
-          */
-          unionTab = pParse->nTab++;
-          assert( p->pOrderBy==0 );
-          addr = tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, unionTab, 0);
-          assert( p->addrOpenEphm[0] == -1 );
-          p->addrOpenEphm[0] = addr;
-          findRightmost(p)->selFlags |= SF_UsesEphemeral;
-          assert( p->pEList );
-        }
-  
-        /* Code the SELECT statements to our left
-        */
-        assert( !pPrior->pOrderBy );
-        tdsqlite3SelectDestInit(&uniondest, priorOp, unionTab);
-        rc = tdsqlite3Select(pParse, pPrior, &uniondest);
-        if( rc ){
-          goto multi_select_end;
-        }
-  
-        /* Code the current SELECT statement
-        */
-        if( p->op==TK_EXCEPT ){
-          op = SRT_Except;
-        }else{
-          assert( p->op==TK_UNION );
-          op = SRT_Union;
-        }
-        p->pPrior = 0;
-        pLimit = p->pLimit;
-        p->pLimit = 0;
-        uniondest.eDest = op;
-        ExplainQueryPlan((pParse, 1, "%s USING TEMP B-TREE",
-                          selectOpName(p->op)));
-        rc = tdsqlite3Select(pParse, p, &uniondest);
-        testcase( rc!=SQLITE_OK );
-        /* Query flattening in tdsqlite3Select() might refill p->pOrderBy.
-        ** Be sure to delete p->pOrderBy, therefore, to avoid a memory leak. */
-        tdsqlite3ExprListDelete(db, p->pOrderBy);
-        pDelete = p->pPrior;
-        p->pPrior = pPrior;
-        p->pOrderBy = 0;
-        if( p->op==TK_UNION ){
-          p->nSelectRow = tdsqlite3LogEstAdd(p->nSelectRow, pPrior->nSelectRow);
-        }
-        tdsqlite3ExprDelete(db, p->pLimit);
-        p->pLimit = pLimit;
-        p->iLimit = 0;
-        p->iOffset = 0;
-  
-        /* Convert the data in the temporary table into whatever form
-        ** it is that we currently need.
-        */
-        assert( unionTab==dest.iSDParm || dest.eDest!=priorOp );
-        assert( p->pEList || db->mallocFailed );
-        if( dest.eDest!=priorOp && db->mallocFailed==0 ){
-          int iCont, iBreak, iStart;
-          iBreak = tdsqlite3VdbeMakeLabel(pParse);
-          iCont = tdsqlite3VdbeMakeLabel(pParse);
-          computeLimitRegisters(pParse, p, iBreak);
-          tdsqlite3VdbeAddOp2(v, OP_Rewind, unionTab, iBreak); VdbeCoverage(v);
-          iStart = tdsqlite3VdbeCurrentAddr(v);
-          selectInnerLoop(pParse, p, unionTab,
-                          0, 0, &dest, iCont, iBreak);
-          tdsqlite3VdbeResolveLabel(v, iCont);
-          tdsqlite3VdbeAddOp2(v, OP_Next, unionTab, iStart); VdbeCoverage(v);
-          tdsqlite3VdbeResolveLabel(v, iBreak);
-          tdsqlite3VdbeAddOp2(v, OP_Close, unionTab, 0);
-        }
-        break;
-      }
-      default: assert( p->op==TK_INTERSECT ); {
-        int tab1, tab2;
-        int iCont, iBreak, iStart;
-        Expr *pLimit;
-        int addr;
-        SelectDest intersectdest;
-        int r1;
-  
-        /* INTERSECT is different from the others since it requires
-        ** two temporary tables.  Hence it has its own case.  Begin
-        ** by allocating the tables we will need.
-        */
-        tab1 = pParse->nTab++;
-        tab2 = pParse->nTab++;
-        assert( p->pOrderBy==0 );
-  
-        addr = tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, tab1, 0);
-        assert( p->addrOpenEphm[0] == -1 );
-        p->addrOpenEphm[0] = addr;
-        findRightmost(p)->selFlags |= SF_UsesEphemeral;
-        assert( p->pEList );
-  
-        /* Code the SELECTs to our left into temporary table "tab1".
-        */
-        tdsqlite3SelectDestInit(&intersectdest, SRT_Union, tab1);
-        rc = tdsqlite3Select(pParse, pPrior, &intersectdest);
-        if( rc ){
-          goto multi_select_end;
-        }
-  
-        /* Code the current SELECT into temporary table "tab2"
-        */
-        addr = tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, tab2, 0);
-        assert( p->addrOpenEphm[1] == -1 );
-        p->addrOpenEphm[1] = addr;
-        p->pPrior = 0;
-        pLimit = p->pLimit;
-        p->pLimit = 0;
-        intersectdest.iSDParm = tab2;
-        ExplainQueryPlan((pParse, 1, "%s USING TEMP B-TREE",
-                          selectOpName(p->op)));
-        rc = tdsqlite3Select(pParse, p, &intersectdest);
-        testcase( rc!=SQLITE_OK );
-        pDelete = p->pPrior;
-        p->pPrior = pPrior;
-        if( p->nSelectRow>pPrior->nSelectRow ){
-          p->nSelectRow = pPrior->nSelectRow;
-        }
-        tdsqlite3ExprDelete(db, p->pLimit);
-        p->pLimit = pLimit;
-  
-        /* Generate code to take the intersection of the two temporary
-        ** tables.
-        */
-        assert( p->pEList );
-        iBreak = tdsqlite3VdbeMakeLabel(pParse);
-        iCont = tdsqlite3VdbeMakeLabel(pParse);
-        computeLimitRegisters(pParse, p, iBreak);
-        tdsqlite3VdbeAddOp2(v, OP_Rewind, tab1, iBreak); VdbeCoverage(v);
-        r1 = tdsqlite3GetTempReg(pParse);
-        iStart = tdsqlite3VdbeAddOp2(v, OP_RowData, tab1, r1);
-        tdsqlite3VdbeAddOp4Int(v, OP_NotFound, tab2, iCont, r1, 0);
-        VdbeCoverage(v);
-        tdsqlite3ReleaseTempReg(pParse, r1);
-        selectInnerLoop(pParse, p, tab1,
-                        0, 0, &dest, iCont, iBreak);
-        tdsqlite3VdbeResolveLabel(v, iCont);
-        tdsqlite3VdbeAddOp2(v, OP_Next, tab1, iStart); VdbeCoverage(v);
-        tdsqlite3VdbeResolveLabel(v, iBreak);
-        tdsqlite3VdbeAddOp2(v, OP_Close, tab2, 0);
-        tdsqlite3VdbeAddOp2(v, OP_Close, tab1, 0);
-        break;
-      }
-    }
-  
-  #ifndef SQLITE_OMIT_EXPLAIN
-    if( p->pNext==0 ){
-      ExplainQueryPlanPop(pParse);
-    }
-  #endif
-  }
-  if( pParse->nErr ) goto multi_select_end;
-  
-  /* Compute collating sequences used by 
-  ** temporary tables needed to implement the compound select.
-  ** Attach the KeyInfo structure to all temporary tables.
-  **
-  ** This section is run by the right-most SELECT statement only.
-  ** SELECT statements to the left always skip this part.  The right-most
-  ** SELECT might also skip this part if it has no ORDER BY clause and
-  ** no temp tables are required.
-  */
-  if( p->selFlags & SF_UsesEphemeral ){
-    int i;                        /* Loop counter */
-    KeyInfo *pKeyInfo;            /* Collating sequence for the result set */
-    Select *pLoop;                /* For looping through SELECT statements */
-    CollSeq **apColl;             /* For looping through pKeyInfo->aColl[] */
-    int nCol;                     /* Number of columns in result set */
-
-    assert( p->pNext==0 );
-    nCol = p->pEList->nExpr;
-    pKeyInfo = tdsqlite3KeyInfoAlloc(db, nCol, 1);
-    if( !pKeyInfo ){
-      rc = SQLITE_NOMEM_BKPT;
-      goto multi_select_end;
-    }
-    for(i=0, apColl=pKeyInfo->aColl; i<nCol; i++, apColl++){
-      *apColl = multiSelectCollSeq(pParse, p, i);
-      if( 0==*apColl ){
-        *apColl = db->pDfltColl;
-      }
-    }
-
-    for(pLoop=p; pLoop; pLoop=pLoop->pPrior){
-      for(i=0; i<2; i++){
-        int addr = pLoop->addrOpenEphm[i];
-        if( addr<0 ){
-          /* If [0] is unused then [1] is also unused.  So we can
-          ** always safely abort as soon as the first unused slot is found */
-          assert( pLoop->addrOpenEphm[1]<0 );
-          break;
-        }
-        tdsqlite3VdbeChangeP2(v, addr, nCol);
-        tdsqlite3VdbeChangeP4(v, addr, (char*)tdsqlite3KeyInfoRef(pKeyInfo),
-                            P4_KEYINFO);
-        pLoop->addrOpenEphm[i] = -1;
-      }
-    }
-    tdsqlite3KeyInfoUnref(pKeyInfo);
-  }
-
-multi_select_end:
-  pDest->iSdst = dest.iSdst;
-  pDest->nSdst = dest.nSdst;
-  tdsqlite3SelectDelete(db, pDelete);
-  return rc;
-}
-#endif /* SQLITE_OMIT_COMPOUND_SELECT */
-
-/*
-** Error message for when two or more terms of a compound select have different
-** size result sets.
-*/
-SQLITE_PRIVATE void tdsqlite3SelectWrongNumTermsError(Parse *pParse, Select *p){
-  if( p->selFlags & SF_Values ){
-    tdsqlite3ErrorMsg(pParse, "all VALUES must have the same number of terms");
-  }else{
-    tdsqlite3ErrorMsg(pParse, "SELECTs to the left and right of %s"
-      " do not have the same number of result columns", selectOpName(p->op));
-  }
-}
-
-/*
-** Code an output subroutine for a coroutine implementation of a
-** SELECT statment.
-**
-** The data to be output is contained in pIn->iSdst.  There are
-** pIn->nSdst columns to be output.  pDest is where the output should
-** be sent.
-**
-** regReturn is the number of the register holding the subroutine
-** return address.
-**
-** If regPrev>0 then it is the first register in a vector that
-** records the previous output.  mem[regPrev] is a flag that is false
-** if there has been no previous output.  If regPrev>0 then code is
-** generated to suppress duplicates.  pKeyInfo is used for comparing
-** keys.
-**
-** If the LIMIT found in p->iLimit is reached, jump immediately to
-** iBreak.
-*/
-static int generateOutputSubroutine(
-  Parse *pParse,          /* Parsing context */
-  Select *p,              /* The SELECT statement */
-  SelectDest *pIn,        /* Coroutine supplying data */
-  SelectDest *pDest,      /* Where to send the data */
-  int regReturn,          /* The return address register */
-  int regPrev,            /* Previous result register.  No uniqueness if 0 */
-  KeyInfo *pKeyInfo,      /* For comparing with previous entry */
-  int iBreak              /* Jump here if we hit the LIMIT */
-){
-  Vdbe *v = pParse->pVdbe;
-  int iContinue;
-  int addr;
-
-  addr = tdsqlite3VdbeCurrentAddr(v);
-  iContinue = tdsqlite3VdbeMakeLabel(pParse);
-
-  /* Suppress duplicates for UNION, EXCEPT, and INTERSECT 
-  */
-  if( regPrev ){
-    int addr1, addr2;
-    addr1 = tdsqlite3VdbeAddOp1(v, OP_IfNot, regPrev); VdbeCoverage(v);
-    addr2 = tdsqlite3VdbeAddOp4(v, OP_Compare, pIn->iSdst, regPrev+1, pIn->nSdst,
-                              (char*)tdsqlite3KeyInfoRef(pKeyInfo), P4_KEYINFO);
-    tdsqlite3VdbeAddOp3(v, OP_Jump, addr2+2, iContinue, addr2+2); VdbeCoverage(v);
-    tdsqlite3VdbeJumpHere(v, addr1);
-    tdsqlite3VdbeAddOp3(v, OP_Copy, pIn->iSdst, regPrev+1, pIn->nSdst-1);
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 1, regPrev);
-  }
-  if( pParse->db->mallocFailed ) return 0;
-
-  /* Suppress the first OFFSET entries if there is an OFFSET clause
-  */
-  codeOffset(v, p->iOffset, iContinue);
-
-  assert( pDest->eDest!=SRT_Exists );
-  assert( pDest->eDest!=SRT_Table );
-  switch( pDest->eDest ){
-    /* Store the result as data using a unique key.
-    */
-    case SRT_EphemTab: {
-      int r1 = tdsqlite3GetTempReg(pParse);
-      int r2 = tdsqlite3GetTempReg(pParse);
-      tdsqlite3VdbeAddOp3(v, OP_MakeRecord, pIn->iSdst, pIn->nSdst, r1);
-      tdsqlite3VdbeAddOp2(v, OP_NewRowid, pDest->iSDParm, r2);
-      tdsqlite3VdbeAddOp3(v, OP_Insert, pDest->iSDParm, r1, r2);
-      tdsqlite3VdbeChangeP5(v, OPFLAG_APPEND);
-      tdsqlite3ReleaseTempReg(pParse, r2);
-      tdsqlite3ReleaseTempReg(pParse, r1);
-      break;
-    }
-
-#ifndef SQLITE_OMIT_SUBQUERY
-    /* If we are creating a set for an "expr IN (SELECT ...)".
-    */
-    case SRT_Set: {
-      int r1;
-      testcase( pIn->nSdst>1 );
-      r1 = tdsqlite3GetTempReg(pParse);
-      tdsqlite3VdbeAddOp4(v, OP_MakeRecord, pIn->iSdst, pIn->nSdst, 
-          r1, pDest->zAffSdst, pIn->nSdst);
-      tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, pDest->iSDParm, r1,
-                           pIn->iSdst, pIn->nSdst);
-      tdsqlite3ReleaseTempReg(pParse, r1);
-      break;
-    }
-
-    /* If this is a scalar select that is part of an expression, then
-    ** store the results in the appropriate memory cell and break out
-    ** of the scan loop.  Note that the select might return multiple columns
-    ** if it is the RHS of a row-value IN operator.
-    */
-    case SRT_Mem: {
-      if( pParse->nErr==0 ){
-        testcase( pIn->nSdst>1 );
-        tdsqlite3ExprCodeMove(pParse, pIn->iSdst, pDest->iSDParm, pIn->nSdst);
-      }
-      /* The LIMIT clause will jump out of the loop for us */
-      break;
-    }
-#endif /* #ifndef SQLITE_OMIT_SUBQUERY */
-
-    /* The results are stored in a sequence of registers
-    ** starting at pDest->iSdst.  Then the co-routine yields.
-    */
-    case SRT_Coroutine: {
-      if( pDest->iSdst==0 ){
-        pDest->iSdst = tdsqlite3GetTempRange(pParse, pIn->nSdst);
-        pDest->nSdst = pIn->nSdst;
-      }
-      tdsqlite3ExprCodeMove(pParse, pIn->iSdst, pDest->iSdst, pIn->nSdst);
-      tdsqlite3VdbeAddOp1(v, OP_Yield, pDest->iSDParm);
-      break;
-    }
-
-    /* If none of the above, then the result destination must be
-    ** SRT_Output.  This routine is never called with any other
-    ** destination other than the ones handled above or SRT_Output.
-    **
-    ** For SRT_Output, results are stored in a sequence of registers.  
-    ** Then the OP_ResultRow opcode is used to cause tdsqlite3_step() to
-    ** return the next row of result.
-    */
-    default: {
-      assert( pDest->eDest==SRT_Output );
-      tdsqlite3VdbeAddOp2(v, OP_ResultRow, pIn->iSdst, pIn->nSdst);
-      break;
-    }
-  }
-
-  /* Jump to the end of the loop if the LIMIT is reached.
-  */
-  if( p->iLimit ){
-    tdsqlite3VdbeAddOp2(v, OP_DecrJumpZero, p->iLimit, iBreak); VdbeCoverage(v);
-  }
-
-  /* Generate the subroutine return
-  */
-  tdsqlite3VdbeResolveLabel(v, iContinue);
-  tdsqlite3VdbeAddOp1(v, OP_Return, regReturn);
-
-  return addr;
-}
-
-/*
-** Alternative compound select code generator for cases when there
-** is an ORDER BY clause.
-**
-** We assume a query of the following form:
-**
-**      <selectA>  <operator>  <selectB>  ORDER BY <orderbylist>
-**
-** <operator> is one of UNION ALL, UNION, EXCEPT, or INTERSECT.  The idea
-** is to code both <selectA> and <selectB> with the ORDER BY clause as
-** co-routines.  Then run the co-routines in parallel and merge the results
-** into the output.  In addition to the two coroutines (called selectA and
-** selectB) there are 7 subroutines:
-**
-**    outA:    Move the output of the selectA coroutine into the output
-**             of the compound query.
-**
-**    outB:    Move the output of the selectB coroutine into the output
-**             of the compound query.  (Only generated for UNION and
-**             UNION ALL.  EXCEPT and INSERTSECT never output a row that
-**             appears only in B.)
-**
-**    AltB:    Called when there is data from both coroutines and A<B.
-**
-**    AeqB:    Called when there is data from both coroutines and A==B.
-**
-**    AgtB:    Called when there is data from both coroutines and A>B.
-**
-**    EofA:    Called when data is exhausted from selectA.
-**
-**    EofB:    Called when data is exhausted from selectB.
-**
-** The implementation of the latter five subroutines depend on which 
-** <operator> is used:
-**
-**
-**             UNION ALL         UNION            EXCEPT          INTERSECT
-**          -------------  -----------------  --------------  -----------------
-**   AltB:   outA, nextA      outA, nextA       outA, nextA         nextA
-**
-**   AeqB:   outA, nextA         nextA             nextA         outA, nextA
-**
-**   AgtB:   outB, nextB      outB, nextB          nextB            nextB
-**
-**   EofA:   outB, nextB      outB, nextB          halt             halt
-**
-**   EofB:   outA, nextA      outA, nextA       outA, nextA         halt
-**
-** In the AltB, AeqB, and AgtB subroutines, an EOF on A following nextA
-** causes an immediate jump to EofA and an EOF on B following nextB causes
-** an immediate jump to EofB.  Within EofA and EofB, and EOF on entry or
-** following nextX causes a jump to the end of the select processing.
-**
-** Duplicate removal in the UNION, EXCEPT, and INTERSECT cases is handled
-** within the output subroutine.  The regPrev register set holds the previously
-** output value.  A comparison is made against this value and the output
-** is skipped if the next results would be the same as the previous.
-**
-** The implementation plan is to implement the two coroutines and seven
-** subroutines first, then put the control logic at the bottom.  Like this:
-**
-**          goto Init
-**     coA: coroutine for left query (A)
-**     coB: coroutine for right query (B)
-**    outA: output one row of A
-**    outB: output one row of B (UNION and UNION ALL only)
-**    EofA: ...
-**    EofB: ...
-**    AltB: ...
-**    AeqB: ...
-**    AgtB: ...
-**    Init: initialize coroutine registers
-**          yield coA
-**          if eof(A) goto EofA
-**          yield coB
-**          if eof(B) goto EofB
-**    Cmpr: Compare A, B
-**          Jump AltB, AeqB, AgtB
-**     End: ...
-**
-** We call AltB, AeqB, AgtB, EofA, and EofB "subroutines" but they are not
-** actually called using Gosub and they do not Return.  EofA and EofB loop
-** until all data is exhausted then jump to the "end" labe.  AltB, AeqB,
-** and AgtB jump to either L2 or to one of EofA or EofB.
-*/
-#ifndef SQLITE_OMIT_COMPOUND_SELECT
-static int multiSelectOrderBy(
-  Parse *pParse,        /* Parsing context */
-  Select *p,            /* The right-most of SELECTs to be coded */
-  SelectDest *pDest     /* What to do with query results */
-){
-  int i, j;             /* Loop counters */
-  Select *pPrior;       /* Another SELECT immediately to our left */
-  Vdbe *v;              /* Generate code to this VDBE */
-  SelectDest destA;     /* Destination for coroutine A */
-  SelectDest destB;     /* Destination for coroutine B */
-  int regAddrA;         /* Address register for select-A coroutine */
-  int regAddrB;         /* Address register for select-B coroutine */
-  int addrSelectA;      /* Address of the select-A coroutine */
-  int addrSelectB;      /* Address of the select-B coroutine */
-  int regOutA;          /* Address register for the output-A subroutine */
-  int regOutB;          /* Address register for the output-B subroutine */
-  int addrOutA;         /* Address of the output-A subroutine */
-  int addrOutB = 0;     /* Address of the output-B subroutine */
-  int addrEofA;         /* Address of the select-A-exhausted subroutine */
-  int addrEofA_noB;     /* Alternate addrEofA if B is uninitialized */
-  int addrEofB;         /* Address of the select-B-exhausted subroutine */
-  int addrAltB;         /* Address of the A<B subroutine */
-  int addrAeqB;         /* Address of the A==B subroutine */
-  int addrAgtB;         /* Address of the A>B subroutine */
-  int regLimitA;        /* Limit register for select-A */
-  int regLimitB;        /* Limit register for select-A */
-  int regPrev;          /* A range of registers to hold previous output */
-  int savedLimit;       /* Saved value of p->iLimit */
-  int savedOffset;      /* Saved value of p->iOffset */
-  int labelCmpr;        /* Label for the start of the merge algorithm */
-  int labelEnd;         /* Label for the end of the overall SELECT stmt */
-  int addr1;            /* Jump instructions that get retargetted */
-  int op;               /* One of TK_ALL, TK_UNION, TK_EXCEPT, TK_INTERSECT */
-  KeyInfo *pKeyDup = 0; /* Comparison information for duplicate removal */
-  KeyInfo *pKeyMerge;   /* Comparison information for merging rows */
-  tdsqlite3 *db;          /* Database connection */
-  ExprList *pOrderBy;   /* The ORDER BY clause */
-  int nOrderBy;         /* Number of terms in the ORDER BY clause */
-  int *aPermute;        /* Mapping from ORDER BY terms to result set columns */
-
-  assert( p->pOrderBy!=0 );
-  assert( pKeyDup==0 ); /* "Managed" code needs this.  Ticket #3382. */
-  db = pParse->db;
-  v = pParse->pVdbe;
-  assert( v!=0 );       /* Already thrown the error if VDBE alloc failed */
-  labelEnd = tdsqlite3VdbeMakeLabel(pParse);
-  labelCmpr = tdsqlite3VdbeMakeLabel(pParse);
-
-
-  /* Patch up the ORDER BY clause
-  */
-  op = p->op;  
-  pPrior = p->pPrior;
-  assert( pPrior->pOrderBy==0 );
-  pOrderBy = p->pOrderBy;
-  assert( pOrderBy );
-  nOrderBy = pOrderBy->nExpr;
-
-  /* For operators other than UNION ALL we have to make sure that
-  ** the ORDER BY clause covers every term of the result set.  Add
-  ** terms to the ORDER BY clause as necessary.
-  */
-  if( op!=TK_ALL ){
-    for(i=1; db->mallocFailed==0 && i<=p->pEList->nExpr; i++){
-      struct ExprList_item *pItem;
-      for(j=0, pItem=pOrderBy->a; j<nOrderBy; j++, pItem++){
-        assert( pItem->u.x.iOrderByCol>0 );
-        if( pItem->u.x.iOrderByCol==i ) break;
-      }
-      if( j==nOrderBy ){
-        Expr *pNew = tdsqlite3Expr(db, TK_INTEGER, 0);
-        if( pNew==0 ) return SQLITE_NOMEM_BKPT;
-        pNew->flags |= EP_IntValue;
-        pNew->u.iValue = i;
-        p->pOrderBy = pOrderBy = tdsqlite3ExprListAppend(pParse, pOrderBy, pNew);
-        if( pOrderBy ) pOrderBy->a[nOrderBy++].u.x.iOrderByCol = (u16)i;
-      }
-    }
-  }
-
-  /* Compute the comparison permutation and keyinfo that is used with
-  ** the permutation used to determine if the next
-  ** row of results comes from selectA or selectB.  Also add explicit
-  ** collations to the ORDER BY clause terms so that when the subqueries
-  ** to the right and the left are evaluated, they use the correct
-  ** collation.
-  */
-  aPermute = tdsqlite3DbMallocRawNN(db, sizeof(int)*(nOrderBy + 1));
-  if( aPermute ){
-    struct ExprList_item *pItem;
-    aPermute[0] = nOrderBy;
-    for(i=1, pItem=pOrderBy->a; i<=nOrderBy; i++, pItem++){
-      assert( pItem->u.x.iOrderByCol>0 );
-      assert( pItem->u.x.iOrderByCol<=p->pEList->nExpr );
-      aPermute[i] = pItem->u.x.iOrderByCol - 1;
-    }
-    pKeyMerge = multiSelectOrderByKeyInfo(pParse, p, 1);
-  }else{
-    pKeyMerge = 0;
-  }
-
-  /* Reattach the ORDER BY clause to the query.
-  */
-  p->pOrderBy = pOrderBy;
-  pPrior->pOrderBy = tdsqlite3ExprListDup(pParse->db, pOrderBy, 0);
-
-  /* Allocate a range of temporary registers and the KeyInfo needed
-  ** for the logic that removes duplicate result rows when the
-  ** operator is UNION, EXCEPT, or INTERSECT (but not UNION ALL).
-  */
-  if( op==TK_ALL ){
-    regPrev = 0;
-  }else{
-    int nExpr = p->pEList->nExpr;
-    assert( nOrderBy>=nExpr || db->mallocFailed );
-    regPrev = pParse->nMem+1;
-    pParse->nMem += nExpr+1;
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regPrev);
-    pKeyDup = tdsqlite3KeyInfoAlloc(db, nExpr, 1);
-    if( pKeyDup ){
-      assert( tdsqlite3KeyInfoIsWriteable(pKeyDup) );
-      for(i=0; i<nExpr; i++){
-        pKeyDup->aColl[i] = multiSelectCollSeq(pParse, p, i);
-        pKeyDup->aSortFlags[i] = 0;
-      }
-    }
-  }
- 
-  /* Separate the left and the right query from one another
-  */
-  p->pPrior = 0;
-  pPrior->pNext = 0;
-  tdsqlite3ResolveOrderGroupBy(pParse, p, p->pOrderBy, "ORDER");
-  if( pPrior->pPrior==0 ){
-    tdsqlite3ResolveOrderGroupBy(pParse, pPrior, pPrior->pOrderBy, "ORDER");
-  }
-
-  /* Compute the limit registers */
-  computeLimitRegisters(pParse, p, labelEnd);
-  if( p->iLimit && op==TK_ALL ){
-    regLimitA = ++pParse->nMem;
-    regLimitB = ++pParse->nMem;
-    tdsqlite3VdbeAddOp2(v, OP_Copy, p->iOffset ? p->iOffset+1 : p->iLimit,
-                                  regLimitA);
-    tdsqlite3VdbeAddOp2(v, OP_Copy, regLimitA, regLimitB);
-  }else{
-    regLimitA = regLimitB = 0;
-  }
-  tdsqlite3ExprDelete(db, p->pLimit);
-  p->pLimit = 0;
-
-  regAddrA = ++pParse->nMem;
-  regAddrB = ++pParse->nMem;
-  regOutA = ++pParse->nMem;
-  regOutB = ++pParse->nMem;
-  tdsqlite3SelectDestInit(&destA, SRT_Coroutine, regAddrA);
-  tdsqlite3SelectDestInit(&destB, SRT_Coroutine, regAddrB);
-
-  ExplainQueryPlan((pParse, 1, "MERGE (%s)", selectOpName(p->op)));
-
-  /* Generate a coroutine to evaluate the SELECT statement to the
-  ** left of the compound operator - the "A" select.
-  */
-  addrSelectA = tdsqlite3VdbeCurrentAddr(v) + 1;
-  addr1 = tdsqlite3VdbeAddOp3(v, OP_InitCoroutine, regAddrA, 0, addrSelectA);
-  VdbeComment((v, "left SELECT"));
-  pPrior->iLimit = regLimitA;
-  ExplainQueryPlan((pParse, 1, "LEFT"));
-  tdsqlite3Select(pParse, pPrior, &destA);
-  tdsqlite3VdbeEndCoroutine(v, regAddrA);
-  tdsqlite3VdbeJumpHere(v, addr1);
-
-  /* Generate a coroutine to evaluate the SELECT statement on 
-  ** the right - the "B" select
-  */
-  addrSelectB = tdsqlite3VdbeCurrentAddr(v) + 1;
-  addr1 = tdsqlite3VdbeAddOp3(v, OP_InitCoroutine, regAddrB, 0, addrSelectB);
-  VdbeComment((v, "right SELECT"));
-  savedLimit = p->iLimit;
-  savedOffset = p->iOffset;
-  p->iLimit = regLimitB;
-  p->iOffset = 0;  
-  ExplainQueryPlan((pParse, 1, "RIGHT"));
-  tdsqlite3Select(pParse, p, &destB);
-  p->iLimit = savedLimit;
-  p->iOffset = savedOffset;
-  tdsqlite3VdbeEndCoroutine(v, regAddrB);
-
-  /* Generate a subroutine that outputs the current row of the A
-  ** select as the next output row of the compound select.
-  */
-  VdbeNoopComment((v, "Output routine for A"));
-  addrOutA = generateOutputSubroutine(pParse,
-                 p, &destA, pDest, regOutA,
-                 regPrev, pKeyDup, labelEnd);
-  
-  /* Generate a subroutine that outputs the current row of the B
-  ** select as the next output row of the compound select.
-  */
-  if( op==TK_ALL || op==TK_UNION ){
-    VdbeNoopComment((v, "Output routine for B"));
-    addrOutB = generateOutputSubroutine(pParse,
-                 p, &destB, pDest, regOutB,
-                 regPrev, pKeyDup, labelEnd);
-  }
-  tdsqlite3KeyInfoUnref(pKeyDup);
-
-  /* Generate a subroutine to run when the results from select A
-  ** are exhausted and only data in select B remains.
-  */
-  if( op==TK_EXCEPT || op==TK_INTERSECT ){
-    addrEofA_noB = addrEofA = labelEnd;
-  }else{  
-    VdbeNoopComment((v, "eof-A subroutine"));
-    addrEofA = tdsqlite3VdbeAddOp2(v, OP_Gosub, regOutB, addrOutB);
-    addrEofA_noB = tdsqlite3VdbeAddOp2(v, OP_Yield, regAddrB, labelEnd);
-                                     VdbeCoverage(v);
-    tdsqlite3VdbeGoto(v, addrEofA);
-    p->nSelectRow = tdsqlite3LogEstAdd(p->nSelectRow, pPrior->nSelectRow);
-  }
-
-  /* Generate a subroutine to run when the results from select B
-  ** are exhausted and only data in select A remains.
-  */
-  if( op==TK_INTERSECT ){
-    addrEofB = addrEofA;
-    if( p->nSelectRow > pPrior->nSelectRow ) p->nSelectRow = pPrior->nSelectRow;
-  }else{  
-    VdbeNoopComment((v, "eof-B subroutine"));
-    addrEofB = tdsqlite3VdbeAddOp2(v, OP_Gosub, regOutA, addrOutA);
-    tdsqlite3VdbeAddOp2(v, OP_Yield, regAddrA, labelEnd); VdbeCoverage(v);
-    tdsqlite3VdbeGoto(v, addrEofB);
-  }
-
-  /* Generate code to handle the case of A<B
-  */
-  VdbeNoopComment((v, "A-lt-B subroutine"));
-  addrAltB = tdsqlite3VdbeAddOp2(v, OP_Gosub, regOutA, addrOutA);
-  tdsqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA); VdbeCoverage(v);
-  tdsqlite3VdbeGoto(v, labelCmpr);
-
-  /* Generate code to handle the case of A==B
-  */
-  if( op==TK_ALL ){
-    addrAeqB = addrAltB;
-  }else if( op==TK_INTERSECT ){
-    addrAeqB = addrAltB;
-    addrAltB++;
-  }else{
-    VdbeNoopComment((v, "A-eq-B subroutine"));
-    addrAeqB =
-    tdsqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA); VdbeCoverage(v);
-    tdsqlite3VdbeGoto(v, labelCmpr);
-  }
-
-  /* Generate code to handle the case of A>B
-  */
-  VdbeNoopComment((v, "A-gt-B subroutine"));
-  addrAgtB = tdsqlite3VdbeCurrentAddr(v);
-  if( op==TK_ALL || op==TK_UNION ){
-    tdsqlite3VdbeAddOp2(v, OP_Gosub, regOutB, addrOutB);
-  }
-  tdsqlite3VdbeAddOp2(v, OP_Yield, regAddrB, addrEofB); VdbeCoverage(v);
-  tdsqlite3VdbeGoto(v, labelCmpr);
-
-  /* This code runs once to initialize everything.
-  */
-  tdsqlite3VdbeJumpHere(v, addr1);
-  tdsqlite3VdbeAddOp2(v, OP_Yield, regAddrA, addrEofA_noB); VdbeCoverage(v);
-  tdsqlite3VdbeAddOp2(v, OP_Yield, regAddrB, addrEofB); VdbeCoverage(v);
-
-  /* Implement the main merge loop
-  */
-  tdsqlite3VdbeResolveLabel(v, labelCmpr);
-  tdsqlite3VdbeAddOp4(v, OP_Permutation, 0, 0, 0, (char*)aPermute, P4_INTARRAY);
-  tdsqlite3VdbeAddOp4(v, OP_Compare, destA.iSdst, destB.iSdst, nOrderBy,
-                         (char*)pKeyMerge, P4_KEYINFO);
-  tdsqlite3VdbeChangeP5(v, OPFLAG_PERMUTE);
-  tdsqlite3VdbeAddOp3(v, OP_Jump, addrAltB, addrAeqB, addrAgtB); VdbeCoverage(v);
-
-  /* Jump to the this point in order to terminate the query.
-  */
-  tdsqlite3VdbeResolveLabel(v, labelEnd);
-
-  /* Reassembly the compound query so that it will be freed correctly
-  ** by the calling function */
-  if( p->pPrior ){
-    tdsqlite3SelectDelete(db, p->pPrior);
-  }
-  p->pPrior = pPrior;
-  pPrior->pNext = p;
-
-  /*** TBD:  Insert subroutine calls to close cursors on incomplete
-  **** subqueries ****/
-  ExplainQueryPlanPop(pParse);
-  return pParse->nErr!=0;
-}
-#endif
-
-#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
-
-/* An instance of the SubstContext object describes an substitution edit
-** to be performed on a parse tree.
-**
-** All references to columns in table iTable are to be replaced by corresponding
-** expressions in pEList.
-*/
-typedef struct SubstContext {
-  Parse *pParse;            /* The parsing context */
-  int iTable;               /* Replace references to this table */
-  int iNewTable;            /* New table number */
-  int isLeftJoin;           /* Add TK_IF_NULL_ROW opcodes on each replacement */
-  ExprList *pEList;         /* Replacement expressions */
-} SubstContext;
-
-/* Forward Declarations */
-static void substExprList(SubstContext*, ExprList*);
-static void substSelect(SubstContext*, Select*, int);
-
-/*
-** Scan through the expression pExpr.  Replace every reference to
-** a column in table number iTable with a copy of the iColumn-th
-** entry in pEList.  (But leave references to the ROWID column 
-** unchanged.)
-**
-** This routine is part of the flattening procedure.  A subquery
-** whose result set is defined by pEList appears as entry in the
-** FROM clause of a SELECT such that the VDBE cursor assigned to that
-** FORM clause entry is iTable.  This routine makes the necessary 
-** changes to pExpr so that it refers directly to the source table
-** of the subquery rather the result set of the subquery.
-*/
-static Expr *substExpr(
-  SubstContext *pSubst,  /* Description of the substitution */
-  Expr *pExpr            /* Expr in which substitution occurs */
-){
-  if( pExpr==0 ) return 0;
-  if( ExprHasProperty(pExpr, EP_FromJoin)
-   && pExpr->iRightJoinTable==pSubst->iTable
-  ){
-    pExpr->iRightJoinTable = pSubst->iNewTable;
-  }
-  if( pExpr->op==TK_COLUMN && pExpr->iTable==pSubst->iTable ){
-    if( pExpr->iColumn<0 ){
-      pExpr->op = TK_NULL;
-    }else{
-      Expr *pNew;
-      Expr *pCopy = pSubst->pEList->a[pExpr->iColumn].pExpr;
-      Expr ifNullRow;
-      assert( pSubst->pEList!=0 && pExpr->iColumn<pSubst->pEList->nExpr );
-      assert( pExpr->pRight==0 );
-      if( tdsqlite3ExprIsVector(pCopy) ){
-        tdsqlite3VectorErrorMsg(pSubst->pParse, pCopy);
-      }else{
-        tdsqlite3 *db = pSubst->pParse->db;
-        if( pSubst->isLeftJoin && pCopy->op!=TK_COLUMN ){
-          memset(&ifNullRow, 0, sizeof(ifNullRow));
-          ifNullRow.op = TK_IF_NULL_ROW;
-          ifNullRow.pLeft = pCopy;
-          ifNullRow.iTable = pSubst->iNewTable;
-          pCopy = &ifNullRow;
-        }
-        testcase( ExprHasProperty(pCopy, EP_Subquery) );
-        pNew = tdsqlite3ExprDup(db, pCopy, 0);
-        if( pNew && pSubst->isLeftJoin ){
-          ExprSetProperty(pNew, EP_CanBeNull);
-        }
-        if( pNew && ExprHasProperty(pExpr,EP_FromJoin) ){
-          pNew->iRightJoinTable = pExpr->iRightJoinTable;
-          ExprSetProperty(pNew, EP_FromJoin);
-        }
-        tdsqlite3ExprDelete(db, pExpr);
-        pExpr = pNew;
-
-        /* Ensure that the expression now has an implicit collation sequence,
-        ** just as it did when it was a column of a view or sub-query. */
-        if( pExpr ){
-          if( pExpr->op!=TK_COLUMN && pExpr->op!=TK_COLLATE ){
-            CollSeq *pColl = tdsqlite3ExprCollSeq(pSubst->pParse, pExpr);
-            pExpr = tdsqlite3ExprAddCollateString(pSubst->pParse, pExpr, 
-                (pColl ? pColl->zName : "BINARY")
-            );
-          }
-          ExprClearProperty(pExpr, EP_Collate);
-        }
-      }
-    }
-  }else{
-    if( pExpr->op==TK_IF_NULL_ROW && pExpr->iTable==pSubst->iTable ){
-      pExpr->iTable = pSubst->iNewTable;
-    }
-    pExpr->pLeft = substExpr(pSubst, pExpr->pLeft);
-    pExpr->pRight = substExpr(pSubst, pExpr->pRight);
-    if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-      substSelect(pSubst, pExpr->x.pSelect, 1);
-    }else{
-      substExprList(pSubst, pExpr->x.pList);
-    }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    if( ExprHasProperty(pExpr, EP_WinFunc) ){
-      Window *pWin = pExpr->y.pWin;
-      pWin->pFilter = substExpr(pSubst, pWin->pFilter);
-      substExprList(pSubst, pWin->pPartition);
-      substExprList(pSubst, pWin->pOrderBy);
-    }
-#endif
-  }
-  return pExpr;
-}
-static void substExprList(
-  SubstContext *pSubst, /* Description of the substitution */
-  ExprList *pList       /* List to scan and in which to make substitutes */
-){
-  int i;
-  if( pList==0 ) return;
-  for(i=0; i<pList->nExpr; i++){
-    pList->a[i].pExpr = substExpr(pSubst, pList->a[i].pExpr);
-  }
-}
-static void substSelect(
-  SubstContext *pSubst, /* Description of the substitution */
-  Select *p,            /* SELECT statement in which to make substitutions */
-  int doPrior           /* Do substitutes on p->pPrior too */
-){
-  SrcList *pSrc;
-  struct SrcList_item *pItem;
-  int i;
-  if( !p ) return;
-  do{
-    substExprList(pSubst, p->pEList);
-    substExprList(pSubst, p->pGroupBy);
-    substExprList(pSubst, p->pOrderBy);
-    p->pHaving = substExpr(pSubst, p->pHaving);
-    p->pWhere = substExpr(pSubst, p->pWhere);
-    pSrc = p->pSrc;
-    assert( pSrc!=0 );
-    for(i=pSrc->nSrc, pItem=pSrc->a; i>0; i--, pItem++){
-      substSelect(pSubst, pItem->pSelect, 1);
-      if( pItem->fg.isTabFunc ){
-        substExprList(pSubst, pItem->u1.pFuncArg);
-      }
-    }
-  }while( doPrior && (p = p->pPrior)!=0 );
-}
-#endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */
-
-#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
-/*
-** This routine attempts to flatten subqueries as a performance optimization.
-** This routine returns 1 if it makes changes and 0 if no flattening occurs.
-**
-** To understand the concept of flattening, consider the following
-** query:
-**
-**     SELECT a FROM (SELECT x+y AS a FROM t1 WHERE z<100) WHERE a>5
-**
-** The default way of implementing this query is to execute the
-** subquery first and store the results in a temporary table, then
-** run the outer query on that temporary table.  This requires two
-** passes over the data.  Furthermore, because the temporary table
-** has no indices, the WHERE clause on the outer query cannot be
-** optimized.
-**
-** This routine attempts to rewrite queries such as the above into
-** a single flat select, like this:
-**
-**     SELECT x+y AS a FROM t1 WHERE z<100 AND a>5
-**
-** The code generated for this simplification gives the same result
-** but only has to scan the data once.  And because indices might 
-** exist on the table t1, a complete scan of the data might be
-** avoided.
-**
-** Flattening is subject to the following constraints:
-**
-**  (**)  We no longer attempt to flatten aggregate subqueries. Was:
-**        The subquery and the outer query cannot both be aggregates.
-**
-**  (**)  We no longer attempt to flatten aggregate subqueries. Was:
-**        (2) If the subquery is an aggregate then
-**        (2a) the outer query must not be a join and
-**        (2b) the outer query must not use subqueries
-**             other than the one FROM-clause subquery that is a candidate
-**             for flattening.  (This is due to ticket [2f7170d73bf9abf80]
-**             from 2015-02-09.)
-**
-**   (3)  If the subquery is the right operand of a LEFT JOIN then
-**        (3a) the subquery may not be a join and
-**        (3b) the FROM clause of the subquery may not contain a virtual
-**             table and
-**        (3c) the outer query may not be an aggregate.
-**        (3d) the outer query may not be DISTINCT.
-**
-**   (4)  The subquery can not be DISTINCT.
-**
-**  (**)  At one point restrictions (4) and (5) defined a subset of DISTINCT
-**        sub-queries that were excluded from this optimization. Restriction 
-**        (4) has since been expanded to exclude all DISTINCT subqueries.
-**
-**  (**)  We no longer attempt to flatten aggregate subqueries.  Was:
-**        If the subquery is aggregate, the outer query may not be DISTINCT.
-**
-**   (7)  The subquery must have a FROM clause.  TODO:  For subqueries without
-**        A FROM clause, consider adding a FROM clause with the special
-**        table sqlite_once that consists of a single row containing a
-**        single NULL.
-**
-**   (8)  If the subquery uses LIMIT then the outer query may not be a join.
-**
-**   (9)  If the subquery uses LIMIT then the outer query may not be aggregate.
-**
-**  (**)  Restriction (10) was removed from the code on 2005-02-05 but we
-**        accidently carried the comment forward until 2014-09-15.  Original
-**        constraint: "If the subquery is aggregate then the outer query 
-**        may not use LIMIT."
-**
-**  (11)  The subquery and the outer query may not both have ORDER BY clauses.
-**
-**  (**)  Not implemented.  Subsumed into restriction (3).  Was previously
-**        a separate restriction deriving from ticket #350.
-**
-**  (13)  The subquery and outer query may not both use LIMIT.
-**
-**  (14)  The subquery may not use OFFSET.
-**
-**  (15)  If the outer query is part of a compound select, then the
-**        subquery may not use LIMIT.
-**        (See ticket #2339 and ticket [02a8e81d44]).
-**
-**  (16)  If the outer query is aggregate, then the subquery may not
-**        use ORDER BY.  (Ticket #2942)  This used to not matter
-**        until we introduced the group_concat() function.  
-**
-**  (17)  If the subquery is a compound select, then
-**        (17a) all compound operators must be a UNION ALL, and
-**        (17b) no terms within the subquery compound may be aggregate
-**              or DISTINCT, and
-**        (17c) every term within the subquery compound must have a FROM clause
-**        (17d) the outer query may not be
-**              (17d1) aggregate, or
-**              (17d2) DISTINCT, or
-**              (17d3) a join.
-**        (17e) the subquery may not contain window functions
-**
-**        The parent and sub-query may contain WHERE clauses. Subject to
-**        rules (11), (13) and (14), they may also contain ORDER BY,
-**        LIMIT and OFFSET clauses.  The subquery cannot use any compound
-**        operator other than UNION ALL because all the other compound
-**        operators have an implied DISTINCT which is disallowed by
-**        restriction (4).
-**
-**        Also, each component of the sub-query must return the same number
-**        of result columns. This is actually a requirement for any compound
-**        SELECT statement, but all the code here does is make sure that no
-**        such (illegal) sub-query is flattened. The caller will detect the
-**        syntax error and return a detailed message.
-**
-**  (18)  If the sub-query is a compound select, then all terms of the
-**        ORDER BY clause of the parent must be simple references to 
-**        columns of the sub-query.
-**
-**  (19)  If the subquery uses LIMIT then the outer query may not
-**        have a WHERE clause.
-**
-**  (20)  If the sub-query is a compound select, then it must not use
-**        an ORDER BY clause.  Ticket #3773.  We could relax this constraint
-**        somewhat by saying that the terms of the ORDER BY clause must
-**        appear as unmodified result columns in the outer query.  But we
-**        have other optimizations in mind to deal with that case.
-**
-**  (21)  If the subquery uses LIMIT then the outer query may not be
-**        DISTINCT.  (See ticket [752e1646fc]).
-**
-**  (22)  The subquery may not be a recursive CTE.
-**
-**  (**)  Subsumed into restriction (17d3).  Was: If the outer query is
-**        a recursive CTE, then the sub-query may not be a compound query.
-**        This restriction is because transforming the
-**        parent to a compound query confuses the code that handles
-**        recursive queries in multiSelect().
-**
-**  (**)  We no longer attempt to flatten aggregate subqueries.  Was:
-**        The subquery may not be an aggregate that uses the built-in min() or 
-**        or max() functions.  (Without this restriction, a query like:
-**        "SELECT x FROM (SELECT max(y), x FROM t1)" would not necessarily
-**        return the value X for which Y was maximal.)
-**
-**  (25)  If either the subquery or the parent query contains a window
-**        function in the select list or ORDER BY clause, flattening
-**        is not attempted.
-**
-**
-** In this routine, the "p" parameter is a pointer to the outer query.
-** The subquery is p->pSrc->a[iFrom].  isAgg is true if the outer query
-** uses aggregates.
-**
-** If flattening is not attempted, this routine is a no-op and returns 0.
-** If flattening is attempted this routine returns 1.
-**
-** All of the expression analysis must occur on both the outer query and
-** the subquery before this routine runs.
-*/
-static int flattenSubquery(
-  Parse *pParse,       /* Parsing context */
-  Select *p,           /* The parent or outer SELECT statement */
-  int iFrom,           /* Index in p->pSrc->a[] of the inner subquery */
-  int isAgg            /* True if outer SELECT uses aggregate functions */
-){
-  const char *zSavedAuthContext = pParse->zAuthContext;
-  Select *pParent;    /* Current UNION ALL term of the other query */
-  Select *pSub;       /* The inner query or "subquery" */
-  Select *pSub1;      /* Pointer to the rightmost select in sub-query */
-  SrcList *pSrc;      /* The FROM clause of the outer query */
-  SrcList *pSubSrc;   /* The FROM clause of the subquery */
-  int iParent;        /* VDBE cursor number of the pSub result set temp table */
-  int iNewParent = -1;/* Replacement table for iParent */
-  int isLeftJoin = 0; /* True if pSub is the right side of a LEFT JOIN */    
-  int i;              /* Loop counter */
-  Expr *pWhere;                    /* The WHERE clause */
-  struct SrcList_item *pSubitem;   /* The subquery */
-  tdsqlite3 *db = pParse->db;
-
-  /* Check to see if flattening is permitted.  Return 0 if not.
-  */
-  assert( p!=0 );
-  assert( p->pPrior==0 );
-  if( OptimizationDisabled(db, SQLITE_QueryFlattener) ) return 0;
-  pSrc = p->pSrc;
-  assert( pSrc && iFrom>=0 && iFrom<pSrc->nSrc );
-  pSubitem = &pSrc->a[iFrom];
-  iParent = pSubitem->iCursor;
-  pSub = pSubitem->pSelect;
-  assert( pSub!=0 );
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  if( p->pWin || pSub->pWin ) return 0;                  /* Restriction (25) */
-#endif
-
-  pSubSrc = pSub->pSrc;
-  assert( pSubSrc );
-  /* Prior to version 3.1.2, when LIMIT and OFFSET had to be simple constants,
-  ** not arbitrary expressions, we allowed some combining of LIMIT and OFFSET
-  ** because they could be computed at compile-time.  But when LIMIT and OFFSET
-  ** became arbitrary expressions, we were forced to add restrictions (13)
-  ** and (14). */
-  if( pSub->pLimit && p->pLimit ) return 0;              /* Restriction (13) */
-  if( pSub->pLimit && pSub->pLimit->pRight ) return 0;   /* Restriction (14) */
-  if( (p->selFlags & SF_Compound)!=0 && pSub->pLimit ){
-    return 0;                                            /* Restriction (15) */
-  }
-  if( pSubSrc->nSrc==0 ) return 0;                       /* Restriction (7)  */
-  if( pSub->selFlags & SF_Distinct ) return 0;           /* Restriction (4)  */
-  if( pSub->pLimit && (pSrc->nSrc>1 || isAgg) ){
-     return 0;         /* Restrictions (8)(9) */
-  }
-  if( p->pOrderBy && pSub->pOrderBy ){
-     return 0;                                           /* Restriction (11) */
-  }
-  if( isAgg && pSub->pOrderBy ) return 0;                /* Restriction (16) */
-  if( pSub->pLimit && p->pWhere ) return 0;              /* Restriction (19) */
-  if( pSub->pLimit && (p->selFlags & SF_Distinct)!=0 ){
-     return 0;         /* Restriction (21) */
-  }
-  if( pSub->selFlags & (SF_Recursive) ){
-    return 0; /* Restrictions (22) */
-  }
-
-  /*
-  ** If the subquery is the right operand of a LEFT JOIN, then the
-  ** subquery may not be a join itself (3a). Example of why this is not
-  ** allowed:
-  **
-  **         t1 LEFT OUTER JOIN (t2 JOIN t3)
-  **
-  ** If we flatten the above, we would get
-  **
-  **         (t1 LEFT OUTER JOIN t2) JOIN t3
-  **
-  ** which is not at all the same thing.
-  **
-  ** If the subquery is the right operand of a LEFT JOIN, then the outer
-  ** query cannot be an aggregate. (3c)  This is an artifact of the way
-  ** aggregates are processed - there is no mechanism to determine if
-  ** the LEFT JOIN table should be all-NULL.
-  **
-  ** See also tickets #306, #350, and #3300.
-  */
-  if( (pSubitem->fg.jointype & JT_OUTER)!=0 ){
-    isLeftJoin = 1;
-    if( pSubSrc->nSrc>1                   /* (3a) */
-     || isAgg                             /* (3b) */
-     || IsVirtual(pSubSrc->a[0].pTab)     /* (3c) */
-     || (p->selFlags & SF_Distinct)!=0    /* (3d) */
-    ){
-      return 0;
-    }
-  }
-#ifdef SQLITE_EXTRA_IFNULLROW
-  else if( iFrom>0 && !isAgg ){
-    /* Setting isLeftJoin to -1 causes OP_IfNullRow opcodes to be generated for
-    ** every reference to any result column from subquery in a join, even
-    ** though they are not necessary.  This will stress-test the OP_IfNullRow 
-    ** opcode. */
-    isLeftJoin = -1;
-  }
-#endif
-
-  /* Restriction (17): If the sub-query is a compound SELECT, then it must
-  ** use only the UNION ALL operator. And none of the simple select queries
-  ** that make up the compound SELECT are allowed to be aggregate or distinct
-  ** queries.
-  */
-  if( pSub->pPrior ){
-    if( pSub->pOrderBy ){
-      return 0;  /* Restriction (20) */
-    }
-    if( isAgg || (p->selFlags & SF_Distinct)!=0 || pSrc->nSrc!=1 ){
-      return 0; /* (17d1), (17d2), or (17d3) */
-    }
-    for(pSub1=pSub; pSub1; pSub1=pSub1->pPrior){
-      testcase( (pSub1->selFlags & (SF_Distinct|SF_Aggregate))==SF_Distinct );
-      testcase( (pSub1->selFlags & (SF_Distinct|SF_Aggregate))==SF_Aggregate );
-      assert( pSub->pSrc!=0 );
-      assert( pSub->pEList->nExpr==pSub1->pEList->nExpr );
-      if( (pSub1->selFlags & (SF_Distinct|SF_Aggregate))!=0    /* (17b) */
-       || (pSub1->pPrior && pSub1->op!=TK_ALL)                 /* (17a) */
-       || pSub1->pSrc->nSrc<1                                  /* (17c) */
-#ifndef SQLITE_OMIT_WINDOWFUNC
-       || pSub1->pWin                                          /* (17e) */
-#endif
-      ){
-        return 0;
-      }
-      testcase( pSub1->pSrc->nSrc>1 );
-    }
-
-    /* Restriction (18). */
-    if( p->pOrderBy ){
-      int ii;
-      for(ii=0; ii<p->pOrderBy->nExpr; ii++){
-        if( p->pOrderBy->a[ii].u.x.iOrderByCol==0 ) return 0;
-      }
-    }
-  }
-
-  /* Ex-restriction (23):
-  ** The only way that the recursive part of a CTE can contain a compound
-  ** subquery is for the subquery to be one term of a join.  But if the
-  ** subquery is a join, then the flattening has already been stopped by
-  ** restriction (17d3)
-  */
-  assert( (p->selFlags & SF_Recursive)==0 || pSub->pPrior==0 );
-
-  /***** If we reach this point, flattening is permitted. *****/
-  SELECTTRACE(1,pParse,p,("flatten %u.%p from term %d\n",
-                   pSub->selId, pSub, iFrom));
-
-  /* Authorize the subquery */
-  pParse->zAuthContext = pSubitem->zName;
-  TESTONLY(i =) tdsqlite3AuthCheck(pParse, SQLITE_SELECT, 0, 0, 0);
-  testcase( i==SQLITE_DENY );
-  pParse->zAuthContext = zSavedAuthContext;
-
-  /* If the sub-query is a compound SELECT statement, then (by restrictions
-  ** 17 and 18 above) it must be a UNION ALL and the parent query must 
-  ** be of the form:
-  **
-  **     SELECT <expr-list> FROM (<sub-query>) <where-clause> 
-  **
-  ** followed by any ORDER BY, LIMIT and/or OFFSET clauses. This block
-  ** creates N-1 copies of the parent query without any ORDER BY, LIMIT or 
-  ** OFFSET clauses and joins them to the left-hand-side of the original
-  ** using UNION ALL operators. In this case N is the number of simple
-  ** select statements in the compound sub-query.
-  **
-  ** Example:
-  **
-  **     SELECT a+1 FROM (
-  **        SELECT x FROM tab
-  **        UNION ALL
-  **        SELECT y FROM tab
-  **        UNION ALL
-  **        SELECT abs(z*2) FROM tab2
-  **     ) WHERE a!=5 ORDER BY 1
-  **
-  ** Transformed into:
-  **
-  **     SELECT x+1 FROM tab WHERE x+1!=5
-  **     UNION ALL
-  **     SELECT y+1 FROM tab WHERE y+1!=5
-  **     UNION ALL
-  **     SELECT abs(z*2)+1 FROM tab2 WHERE abs(z*2)+1!=5
-  **     ORDER BY 1
-  **
-  ** We call this the "compound-subquery flattening".
-  */
-  for(pSub=pSub->pPrior; pSub; pSub=pSub->pPrior){
-    Select *pNew;
-    ExprList *pOrderBy = p->pOrderBy;
-    Expr *pLimit = p->pLimit;
-    Select *pPrior = p->pPrior;
-    p->pOrderBy = 0;
-    p->pSrc = 0;
-    p->pPrior = 0;
-    p->pLimit = 0;
-    pNew = tdsqlite3SelectDup(db, p, 0);
-    p->pLimit = pLimit;
-    p->pOrderBy = pOrderBy;
-    p->pSrc = pSrc;
-    p->op = TK_ALL;
-    if( pNew==0 ){
-      p->pPrior = pPrior;
-    }else{
-      pNew->pPrior = pPrior;
-      if( pPrior ) pPrior->pNext = pNew;
-      pNew->pNext = p;
-      p->pPrior = pNew;
-      SELECTTRACE(2,pParse,p,("compound-subquery flattener"
-                              " creates %u as peer\n",pNew->selId));
-    }
-    if( db->mallocFailed ) return 1;
-  }
-
-  /* Begin flattening the iFrom-th entry of the FROM clause 
-  ** in the outer query.
-  */
-  pSub = pSub1 = pSubitem->pSelect;
-
-  /* Delete the transient table structure associated with the
-  ** subquery
-  */
-  tdsqlite3DbFree(db, pSubitem->zDatabase);
-  tdsqlite3DbFree(db, pSubitem->zName);
-  tdsqlite3DbFree(db, pSubitem->zAlias);
-  pSubitem->zDatabase = 0;
-  pSubitem->zName = 0;
-  pSubitem->zAlias = 0;
-  pSubitem->pSelect = 0;
-
-  /* Defer deleting the Table object associated with the
-  ** subquery until code generation is
-  ** complete, since there may still exist Expr.pTab entries that
-  ** refer to the subquery even after flattening.  Ticket #3346.
-  **
-  ** pSubitem->pTab is always non-NULL by test restrictions and tests above.
-  */
-  if( ALWAYS(pSubitem->pTab!=0) ){
-    Table *pTabToDel = pSubitem->pTab;
-    if( pTabToDel->nTabRef==1 ){
-      Parse *pToplevel = tdsqlite3ParseToplevel(pParse);
-      pTabToDel->pNextZombie = pToplevel->pZombieTab;
-      pToplevel->pZombieTab = pTabToDel;
-    }else{
-      pTabToDel->nTabRef--;
-    }
-    pSubitem->pTab = 0;
-  }
-
-  /* The following loop runs once for each term in a compound-subquery
-  ** flattening (as described above).  If we are doing a different kind
-  ** of flattening - a flattening other than a compound-subquery flattening -
-  ** then this loop only runs once.
-  **
-  ** This loop moves all of the FROM elements of the subquery into the
-  ** the FROM clause of the outer query.  Before doing this, remember
-  ** the cursor number for the original outer query FROM element in
-  ** iParent.  The iParent cursor will never be used.  Subsequent code
-  ** will scan expressions looking for iParent references and replace
-  ** those references with expressions that resolve to the subquery FROM
-  ** elements we are now copying in.
-  */
-  for(pParent=p; pParent; pParent=pParent->pPrior, pSub=pSub->pPrior){
-    int nSubSrc;
-    u8 jointype = 0;
-    assert( pSub!=0 );
-    pSubSrc = pSub->pSrc;     /* FROM clause of subquery */
-    nSubSrc = pSubSrc->nSrc;  /* Number of terms in subquery FROM clause */
-    pSrc = pParent->pSrc;     /* FROM clause of the outer query */
-
-    if( pSrc ){
-      assert( pParent==p );  /* First time through the loop */
-      jointype = pSubitem->fg.jointype;
-    }else{
-      assert( pParent!=p );  /* 2nd and subsequent times through the loop */
-      pSrc = tdsqlite3SrcListAppend(pParse, 0, 0, 0);
-      if( pSrc==0 ) break;
-      pParent->pSrc = pSrc;
-    }
-
-    /* The subquery uses a single slot of the FROM clause of the outer
-    ** query.  If the subquery has more than one element in its FROM clause,
-    ** then expand the outer query to make space for it to hold all elements
-    ** of the subquery.
-    **
-    ** Example:
-    **
-    **    SELECT * FROM tabA, (SELECT * FROM sub1, sub2), tabB;
-    **
-    ** The outer query has 3 slots in its FROM clause.  One slot of the
-    ** outer query (the middle slot) is used by the subquery.  The next
-    ** block of code will expand the outer query FROM clause to 4 slots.
-    ** The middle slot is expanded to two slots in order to make space
-    ** for the two elements in the FROM clause of the subquery.
-    */
-    if( nSubSrc>1 ){
-      pSrc = tdsqlite3SrcListEnlarge(pParse, pSrc, nSubSrc-1,iFrom+1);
-      if( pSrc==0 ) break;
-      pParent->pSrc = pSrc;
-    }
-
-    /* Transfer the FROM clause terms from the subquery into the
-    ** outer query.
-    */
-    for(i=0; i<nSubSrc; i++){
-      tdsqlite3IdListDelete(db, pSrc->a[i+iFrom].pUsing);
-      assert( pSrc->a[i+iFrom].fg.isTabFunc==0 );
-      pSrc->a[i+iFrom] = pSubSrc->a[i];
-      iNewParent = pSubSrc->a[i].iCursor;
-      memset(&pSubSrc->a[i], 0, sizeof(pSubSrc->a[i]));
-    }
-    pSrc->a[iFrom].fg.jointype = jointype;
-  
-    /* Now begin substituting subquery result set expressions for 
-    ** references to the iParent in the outer query.
-    ** 
-    ** Example:
-    **
-    **   SELECT a+5, b*10 FROM (SELECT x*3 AS a, y+10 AS b FROM t1) WHERE a>b;
-    **   \                     \_____________ subquery __________/          /
-    **    \_____________________ outer query ______________________________/
-    **
-    ** We look at every expression in the outer query and every place we see
-    ** "a" we substitute "x*3" and every place we see "b" we substitute "y+10".
-    */
-    if( pSub->pOrderBy ){
-      /* At this point, any non-zero iOrderByCol values indicate that the
-      ** ORDER BY column expression is identical to the iOrderByCol'th
-      ** expression returned by SELECT statement pSub. Since these values
-      ** do not necessarily correspond to columns in SELECT statement pParent,
-      ** zero them before transfering the ORDER BY clause.
-      **
-      ** Not doing this may cause an error if a subsequent call to this
-      ** function attempts to flatten a compound sub-query into pParent
-      ** (the only way this can happen is if the compound sub-query is
-      ** currently part of pSub->pSrc). See ticket [d11a6e908f].  */
-      ExprList *pOrderBy = pSub->pOrderBy;
-      for(i=0; i<pOrderBy->nExpr; i++){
-        pOrderBy->a[i].u.x.iOrderByCol = 0;
-      }
-      assert( pParent->pOrderBy==0 );
-      pParent->pOrderBy = pOrderBy;
-      pSub->pOrderBy = 0;
-    }
-    pWhere = pSub->pWhere;
-    pSub->pWhere = 0;
-    if( isLeftJoin>0 ){
-      tdsqlite3SetJoinExpr(pWhere, iNewParent);
-    }
-    pParent->pWhere = tdsqlite3ExprAnd(pParse, pWhere, pParent->pWhere);
-    if( db->mallocFailed==0 ){
-      SubstContext x;
-      x.pParse = pParse;
-      x.iTable = iParent;
-      x.iNewTable = iNewParent;
-      x.isLeftJoin = isLeftJoin;
-      x.pEList = pSub->pEList;
-      substSelect(&x, pParent, 0);
-    }
-  
-    /* The flattened query is a compound if either the inner or the
-    ** outer query is a compound. */
-    pParent->selFlags |= pSub->selFlags & SF_Compound;
-    assert( (pSub->selFlags & SF_Distinct)==0 ); /* restriction (17b) */
-  
-    /*
-    ** SELECT ... FROM (SELECT ... LIMIT a OFFSET b) LIMIT x OFFSET y;
-    **
-    ** One is tempted to try to add a and b to combine the limits.  But this
-    ** does not work if either limit is negative.
-    */
-    if( pSub->pLimit ){
-      pParent->pLimit = pSub->pLimit;
-      pSub->pLimit = 0;
-    }
-  }
-
-  /* Finially, delete what is left of the subquery and return
-  ** success.
-  */
-  tdsqlite3SelectDelete(db, pSub1);
-
-#if SELECTTRACE_ENABLED
-  if( tdsqlite3SelectTrace & 0x100 ){
-    SELECTTRACE(0x100,pParse,p,("After flattening:\n"));
-    tdsqlite3TreeViewSelect(0, p, 0);
-  }
-#endif
-
-  return 1;
-}
-#endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */
-
-/*
-** A structure to keep track of all of the column values that are fixed to
-** a known value due to WHERE clause constraints of the form COLUMN=VALUE.
-*/
-typedef struct WhereConst WhereConst;
-struct WhereConst {
-  Parse *pParse;   /* Parsing context */
-  int nConst;      /* Number for COLUMN=CONSTANT terms */
-  int nChng;       /* Number of times a constant is propagated */
-  Expr **apExpr;   /* [i*2] is COLUMN and [i*2+1] is VALUE */
-};
-
-/*
-** Add a new entry to the pConst object.  Except, do not add duplicate
-** pColumn entires.  Also, do not add if doing so would not be appropriate.
-**
-** The caller guarantees the pColumn is a column and pValue is a constant.
-** This routine has to do some additional checks before completing the
-** insert.
-*/
-static void constInsert(
-  WhereConst *pConst,  /* The WhereConst into which we are inserting */
-  Expr *pColumn,       /* The COLUMN part of the constraint */
-  Expr *pValue,        /* The VALUE part of the constraint */
-  Expr *pExpr          /* Overall expression: COLUMN=VALUE or VALUE=COLUMN */
-){
-  int i;
-  assert( pColumn->op==TK_COLUMN );
-  assert( tdsqlite3ExprIsConstant(pValue) );
-
-  if( !ExprHasProperty(pValue, EP_FixedCol) && tdsqlite3ExprAffinity(pValue)!=0 ){
-    return;
-  }
-  if( !tdsqlite3IsBinary(tdsqlite3ExprCompareCollSeq(pConst->pParse,pExpr)) ){
-    return;
-  }
-
-  /* 2018-10-25 ticket [cf5ed20f]
-  ** Make sure the same pColumn is not inserted more than once */
-  for(i=0; i<pConst->nConst; i++){
-    const Expr *pE2 = pConst->apExpr[i*2];
-    assert( pE2->op==TK_COLUMN );
-    if( pE2->iTable==pColumn->iTable
-     && pE2->iColumn==pColumn->iColumn
-    ){
-      return;  /* Already present.  Return without doing anything. */
-    }
-  }
-
-  pConst->nConst++;
-  pConst->apExpr = tdsqlite3DbReallocOrFree(pConst->pParse->db, pConst->apExpr,
-                         pConst->nConst*2*sizeof(Expr*));
-  if( pConst->apExpr==0 ){
-    pConst->nConst = 0;
-  }else{
-    if( ExprHasProperty(pValue, EP_FixedCol) ){
-      pValue = pValue->pLeft;
-    }
-    pConst->apExpr[pConst->nConst*2-2] = pColumn;
-    pConst->apExpr[pConst->nConst*2-1] = pValue;
-  }
-}
-
-/*
-** Find all terms of COLUMN=VALUE or VALUE=COLUMN in pExpr where VALUE
-** is a constant expression and where the term must be true because it
-** is part of the AND-connected terms of the expression.  For each term
-** found, add it to the pConst structure.
-*/
-static void findConstInWhere(WhereConst *pConst, Expr *pExpr){
-  Expr *pRight, *pLeft;
-  if( pExpr==0 ) return;
-  if( ExprHasProperty(pExpr, EP_FromJoin) ) return;
-  if( pExpr->op==TK_AND ){
-    findConstInWhere(pConst, pExpr->pRight);
-    findConstInWhere(pConst, pExpr->pLeft);
-    return;
-  }
-  if( pExpr->op!=TK_EQ ) return;
-  pRight = pExpr->pRight;
-  pLeft = pExpr->pLeft;
-  assert( pRight!=0 );
-  assert( pLeft!=0 );
-  if( pRight->op==TK_COLUMN && tdsqlite3ExprIsConstant(pLeft) ){
-    constInsert(pConst,pRight,pLeft,pExpr);
-  }
-  if( pLeft->op==TK_COLUMN && tdsqlite3ExprIsConstant(pRight) ){
-    constInsert(pConst,pLeft,pRight,pExpr);
-  }
-}
-
-/*
-** This is a Walker expression callback.  pExpr is a candidate expression
-** to be replaced by a value.  If pExpr is equivalent to one of the
-** columns named in pWalker->u.pConst, then overwrite it with its
-** corresponding value.
-*/
-static int propagateConstantExprRewrite(Walker *pWalker, Expr *pExpr){
-  int i;
-  WhereConst *pConst;
-  if( pExpr->op!=TK_COLUMN ) return WRC_Continue;
-  if( ExprHasProperty(pExpr, EP_FixedCol|EP_FromJoin) ){
-    testcase( ExprHasProperty(pExpr, EP_FixedCol) );
-    testcase( ExprHasProperty(pExpr, EP_FromJoin) );
-    return WRC_Continue;
-  }
-  pConst = pWalker->u.pConst;
-  for(i=0; i<pConst->nConst; i++){
-    Expr *pColumn = pConst->apExpr[i*2];
-    if( pColumn==pExpr ) continue;
-    if( pColumn->iTable!=pExpr->iTable ) continue;
-    if( pColumn->iColumn!=pExpr->iColumn ) continue;
-    /* A match is found.  Add the EP_FixedCol property */
-    pConst->nChng++;
-    ExprClearProperty(pExpr, EP_Leaf);
-    ExprSetProperty(pExpr, EP_FixedCol);
-    assert( pExpr->pLeft==0 );
-    pExpr->pLeft = tdsqlite3ExprDup(pConst->pParse->db, pConst->apExpr[i*2+1], 0);
-    break;
-  }
-  return WRC_Prune;
-}
-
-/*
-** The WHERE-clause constant propagation optimization.
-**
-** If the WHERE clause contains terms of the form COLUMN=CONSTANT or
-** CONSTANT=COLUMN that are top-level AND-connected terms that are not
-** part of a ON clause from a LEFT JOIN, then throughout the query
-** replace all other occurrences of COLUMN with CONSTANT.
-**
-** For example, the query:
-**
-**      SELECT * FROM t1, t2, t3 WHERE t1.a=39 AND t2.b=t1.a AND t3.c=t2.b
-**
-** Is transformed into
-**
-**      SELECT * FROM t1, t2, t3 WHERE t1.a=39 AND t2.b=39 AND t3.c=39
-**
-** Return true if any transformations where made and false if not.
-**
-** Implementation note:  Constant propagation is tricky due to affinity
-** and collating sequence interactions.  Consider this example:
-**
-**    CREATE TABLE t1(a INT,b TEXT);
-**    INSERT INTO t1 VALUES(123,'0123');
-**    SELECT * FROM t1 WHERE a=123 AND b=a;
-**    SELECT * FROM t1 WHERE a=123 AND b=123;
-**
-** The two SELECT statements above should return different answers.  b=a
-** is alway true because the comparison uses numeric affinity, but b=123
-** is false because it uses text affinity and '0123' is not the same as '123'.
-** To work around this, the expression tree is not actually changed from
-** "b=a" to "b=123" but rather the "a" in "b=a" is tagged with EP_FixedCol
-** and the "123" value is hung off of the pLeft pointer.  Code generator
-** routines know to generate the constant "123" instead of looking up the
-** column value.  Also, to avoid collation problems, this optimization is
-** only attempted if the "a=123" term uses the default BINARY collation.
-*/
-static int propagateConstants(
-  Parse *pParse,   /* The parsing context */
-  Select *p        /* The query in which to propagate constants */
-){
-  WhereConst x;
-  Walker w;
-  int nChng = 0;
-  x.pParse = pParse;
-  do{
-    x.nConst = 0;
-    x.nChng = 0;
-    x.apExpr = 0;
-    findConstInWhere(&x, p->pWhere);
-    if( x.nConst ){
-      memset(&w, 0, sizeof(w));
-      w.pParse = pParse;
-      w.xExprCallback = propagateConstantExprRewrite;
-      w.xSelectCallback = tdsqlite3SelectWalkNoop;
-      w.xSelectCallback2 = 0;
-      w.walkerDepth = 0;
-      w.u.pConst = &x;
-      tdsqlite3WalkExpr(&w, p->pWhere);
-      tdsqlite3DbFree(x.pParse->db, x.apExpr);
-      nChng += x.nChng;
-    }
-  }while( x.nChng );  
-  return nChng;
-}
-
-#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
-/*
-** Make copies of relevant WHERE clause terms of the outer query into
-** the WHERE clause of subquery.  Example:
-**
-**    SELECT * FROM (SELECT a AS x, c-d AS y FROM t1) WHERE x=5 AND y=10;
-**
-** Transformed into:
-**
-**    SELECT * FROM (SELECT a AS x, c-d AS y FROM t1 WHERE a=5 AND c-d=10)
-**     WHERE x=5 AND y=10;
-**
-** The hope is that the terms added to the inner query will make it more
-** efficient.
-**
-** Do not attempt this optimization if:
-**
-**   (1) (** This restriction was removed on 2017-09-29.  We used to
-**           disallow this optimization for aggregate subqueries, but now
-**           it is allowed by putting the extra terms on the HAVING clause.
-**           The added HAVING clause is pointless if the subquery lacks
-**           a GROUP BY clause.  But such a HAVING clause is also harmless
-**           so there does not appear to be any reason to add extra logic
-**           to suppress it. **)
-**
-**   (2) The inner query is the recursive part of a common table expression.
-**
-**   (3) The inner query has a LIMIT clause (since the changes to the WHERE
-**       clause would change the meaning of the LIMIT).
-**
-**   (4) The inner query is the right operand of a LEFT JOIN and the
-**       expression to be pushed down does not come from the ON clause
-**       on that LEFT JOIN.
-**
-**   (5) The WHERE clause expression originates in the ON or USING clause
-**       of a LEFT JOIN where iCursor is not the right-hand table of that
-**       left join.  An example:
-**
-**           SELECT *
-**           FROM (SELECT 1 AS a1 UNION ALL SELECT 2) AS aa
-**           JOIN (SELECT 1 AS b2 UNION ALL SELECT 2) AS bb ON (a1=b2)
-**           LEFT JOIN (SELECT 8 AS c3 UNION ALL SELECT 9) AS cc ON (b2=2);
-**
-**       The correct answer is three rows:  (1,1,NULL),(2,2,8),(2,2,9).
-**       But if the (b2=2) term were to be pushed down into the bb subquery,
-**       then the (1,1,NULL) row would be suppressed.
-**
-**   (6) The inner query features one or more window-functions (since 
-**       changes to the WHERE clause of the inner query could change the 
-**       window over which window functions are calculated).
-**
-** Return 0 if no changes are made and non-zero if one or more WHERE clause
-** terms are duplicated into the subquery.
-*/
-static int pushDownWhereTerms(
-  Parse *pParse,        /* Parse context (for malloc() and error reporting) */
-  Select *pSubq,        /* The subquery whose WHERE clause is to be augmented */
-  Expr *pWhere,         /* The WHERE clause of the outer query */
-  int iCursor,          /* Cursor number of the subquery */
-  int isLeftJoin        /* True if pSubq is the right term of a LEFT JOIN */
-){
-  Expr *pNew;
-  int nChng = 0;
-  if( pWhere==0 ) return 0;
-  if( pSubq->selFlags & SF_Recursive ) return 0;  /* restriction (2) */
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  if( pSubq->pWin ) return 0;    /* restriction (6) */
-#endif
-
-#ifdef SQLITE_DEBUG
-  /* Only the first term of a compound can have a WITH clause.  But make
-  ** sure no other terms are marked SF_Recursive in case something changes
-  ** in the future.
-  */
-  {
-    Select *pX;  
-    for(pX=pSubq; pX; pX=pX->pPrior){
-      assert( (pX->selFlags & (SF_Recursive))==0 );
-    }
-  }
-#endif
-
-  if( pSubq->pLimit!=0 ){
-    return 0; /* restriction (3) */
-  }
-  while( pWhere->op==TK_AND ){
-    nChng += pushDownWhereTerms(pParse, pSubq, pWhere->pRight,
-                                iCursor, isLeftJoin);
-    pWhere = pWhere->pLeft;
-  }
-  if( isLeftJoin
-   && (ExprHasProperty(pWhere,EP_FromJoin)==0
-         || pWhere->iRightJoinTable!=iCursor)
-  ){
-    return 0; /* restriction (4) */
-  }
-  if( ExprHasProperty(pWhere,EP_FromJoin) && pWhere->iRightJoinTable!=iCursor ){
-    return 0; /* restriction (5) */
-  }
-  if( tdsqlite3ExprIsTableConstant(pWhere, iCursor) ){
-    nChng++;
-    while( pSubq ){
-      SubstContext x;
-      pNew = tdsqlite3ExprDup(pParse->db, pWhere, 0);
-      unsetJoinExpr(pNew, -1);
-      x.pParse = pParse;
-      x.iTable = iCursor;
-      x.iNewTable = iCursor;
-      x.isLeftJoin = 0;
-      x.pEList = pSubq->pEList;
-      pNew = substExpr(&x, pNew);
-      if( pSubq->selFlags & SF_Aggregate ){
-        pSubq->pHaving = tdsqlite3ExprAnd(pParse, pSubq->pHaving, pNew);
-      }else{
-        pSubq->pWhere = tdsqlite3ExprAnd(pParse, pSubq->pWhere, pNew);
-      }
-      pSubq = pSubq->pPrior;
-    }
-  }
-  return nChng;
-}
-#endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */
-
-/*
-** The pFunc is the only aggregate function in the query.  Check to see
-** if the query is a candidate for the min/max optimization. 
-**
-** If the query is a candidate for the min/max optimization, then set
-** *ppMinMax to be an ORDER BY clause to be used for the optimization
-** and return either WHERE_ORDERBY_MIN or WHERE_ORDERBY_MAX depending on
-** whether pFunc is a min() or max() function.
-**
-** If the query is not a candidate for the min/max optimization, return
-** WHERE_ORDERBY_NORMAL (which must be zero).
-**
-** This routine must be called after aggregate functions have been
-** located but before their arguments have been subjected to aggregate
-** analysis.
-*/
-static u8 minMaxQuery(tdsqlite3 *db, Expr *pFunc, ExprList **ppMinMax){
-  int eRet = WHERE_ORDERBY_NORMAL;      /* Return value */
-  ExprList *pEList = pFunc->x.pList;    /* Arguments to agg function */
-  const char *zFunc;                    /* Name of aggregate function pFunc */
-  ExprList *pOrderBy;
-  u8 sortFlags;
-
-  assert( *ppMinMax==0 );
-  assert( pFunc->op==TK_AGG_FUNCTION );
-  assert( !IsWindowFunc(pFunc) );
-  if( pEList==0 || pEList->nExpr!=1 || ExprHasProperty(pFunc, EP_WinFunc) ){
-    return eRet;
-  }
-  zFunc = pFunc->u.zToken;
-  if( tdsqlite3StrICmp(zFunc, "min")==0 ){
-    eRet = WHERE_ORDERBY_MIN;
-    sortFlags = KEYINFO_ORDER_BIGNULL;
-  }else if( tdsqlite3StrICmp(zFunc, "max")==0 ){
-    eRet = WHERE_ORDERBY_MAX;
-    sortFlags = KEYINFO_ORDER_DESC;
-  }else{
-    return eRet;
-  }
-  *ppMinMax = pOrderBy = tdsqlite3ExprListDup(db, pEList, 0);
-  assert( pOrderBy!=0 || db->mallocFailed );
-  if( pOrderBy ) pOrderBy->a[0].sortFlags = sortFlags;
-  return eRet;
-}
-
-/*
-** The select statement passed as the first argument is an aggregate query.
-** The second argument is the associated aggregate-info object. This 
-** function tests if the SELECT is of the form:
-**
-**   SELECT count(*) FROM <tbl>
-**
-** where table is a database table, not a sub-select or view. If the query
-** does match this pattern, then a pointer to the Table object representing
-** <tbl> is returned. Otherwise, 0 is returned.
-*/
-static Table *isSimpleCount(Select *p, AggInfo *pAggInfo){
-  Table *pTab;
-  Expr *pExpr;
-
-  assert( !p->pGroupBy );
-
-  if( p->pWhere || p->pEList->nExpr!=1 
-   || p->pSrc->nSrc!=1 || p->pSrc->a[0].pSelect
-  ){
-    return 0;
-  }
-  pTab = p->pSrc->a[0].pTab;
-  pExpr = p->pEList->a[0].pExpr;
-  assert( pTab && !pTab->pSelect && pExpr );
-
-  if( IsVirtual(pTab) ) return 0;
-  if( pExpr->op!=TK_AGG_FUNCTION ) return 0;
-  if( NEVER(pAggInfo->nFunc==0) ) return 0;
-  if( (pAggInfo->aFunc[0].pFunc->funcFlags&SQLITE_FUNC_COUNT)==0 ) return 0;
-  if( ExprHasProperty(pExpr, EP_Distinct|EP_WinFunc) ) return 0;
-
-  return pTab;
-}
-
-/*
-** If the source-list item passed as an argument was augmented with an
-** INDEXED BY clause, then try to locate the specified index. If there
-** was such a clause and the named index cannot be found, return 
-** SQLITE_ERROR and leave an error in pParse. Otherwise, populate 
-** pFrom->pIndex and return SQLITE_OK.
-*/
-SQLITE_PRIVATE int tdsqlite3IndexedByLookup(Parse *pParse, struct SrcList_item *pFrom){
-  if( pFrom->pTab && pFrom->fg.isIndexedBy ){
-    Table *pTab = pFrom->pTab;
-    char *zIndexedBy = pFrom->u1.zIndexedBy;
-    Index *pIdx;
-    for(pIdx=pTab->pIndex; 
-        pIdx && tdsqlite3StrICmp(pIdx->zName, zIndexedBy); 
-        pIdx=pIdx->pNext
-    );
-    if( !pIdx ){
-      tdsqlite3ErrorMsg(pParse, "no such index: %s", zIndexedBy, 0);
-      pParse->checkSchema = 1;
-      return SQLITE_ERROR;
-    }
-    pFrom->pIBIndex = pIdx;
-  }
-  return SQLITE_OK;
-}
-/*
-** Detect compound SELECT statements that use an ORDER BY clause with 
-** an alternative collating sequence.
-**
-**    SELECT ... FROM t1 EXCEPT SELECT ... FROM t2 ORDER BY .. COLLATE ...
-**
-** These are rewritten as a subquery:
-**
-**    SELECT * FROM (SELECT ... FROM t1 EXCEPT SELECT ... FROM t2)
-**     ORDER BY ... COLLATE ...
-**
-** This transformation is necessary because the multiSelectOrderBy() routine
-** above that generates the code for a compound SELECT with an ORDER BY clause
-** uses a merge algorithm that requires the same collating sequence on the
-** result columns as on the ORDER BY clause.  See ticket
-** http://www.sqlite.org/src/info/6709574d2a
-**
-** This transformation is only needed for EXCEPT, INTERSECT, and UNION.
-** The UNION ALL operator works fine with multiSelectOrderBy() even when
-** there are COLLATE terms in the ORDER BY.
-*/
-static int convertCompoundSelectToSubquery(Walker *pWalker, Select *p){
-  int i;
-  Select *pNew;
-  Select *pX;
-  tdsqlite3 *db;
-  struct ExprList_item *a;
-  SrcList *pNewSrc;
-  Parse *pParse;
-  Token dummy;
-
-  if( p->pPrior==0 ) return WRC_Continue;
-  if( p->pOrderBy==0 ) return WRC_Continue;
-  for(pX=p; pX && (pX->op==TK_ALL || pX->op==TK_SELECT); pX=pX->pPrior){}
-  if( pX==0 ) return WRC_Continue;
-  a = p->pOrderBy->a;
-  for(i=p->pOrderBy->nExpr-1; i>=0; i--){
-    if( a[i].pExpr->flags & EP_Collate ) break;
-  }
-  if( i<0 ) return WRC_Continue;
-
-  /* If we reach this point, that means the transformation is required. */
-
-  pParse = pWalker->pParse;
-  db = pParse->db;
-  pNew = tdsqlite3DbMallocZero(db, sizeof(*pNew) );
-  if( pNew==0 ) return WRC_Abort;
-  memset(&dummy, 0, sizeof(dummy));
-  pNewSrc = tdsqlite3SrcListAppendFromTerm(pParse,0,0,0,&dummy,pNew,0,0);
-  if( pNewSrc==0 ) return WRC_Abort;
-  *pNew = *p;
-  p->pSrc = pNewSrc;
-  p->pEList = tdsqlite3ExprListAppend(pParse, 0, tdsqlite3Expr(db, TK_ASTERISK, 0));
-  p->op = TK_SELECT;
-  p->pWhere = 0;
-  pNew->pGroupBy = 0;
-  pNew->pHaving = 0;
-  pNew->pOrderBy = 0;
-  p->pPrior = 0;
-  p->pNext = 0;
-  p->pWith = 0;
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  p->pWinDefn = 0;
-#endif
-  p->selFlags &= ~SF_Compound;
-  assert( (p->selFlags & SF_Converted)==0 );
-  p->selFlags |= SF_Converted;
-  assert( pNew->pPrior!=0 );
-  pNew->pPrior->pNext = pNew;
-  pNew->pLimit = 0;
-  return WRC_Continue;
-}
-
-/*
-** Check to see if the FROM clause term pFrom has table-valued function
-** arguments.  If it does, leave an error message in pParse and return
-** non-zero, since pFrom is not allowed to be a table-valued function.
-*/
-static int cannotBeFunction(Parse *pParse, struct SrcList_item *pFrom){
-  if( pFrom->fg.isTabFunc ){
-    tdsqlite3ErrorMsg(pParse, "'%s' is not a function", pFrom->zName);
-    return 1;
-  }
-  return 0;
-}
-
-#ifndef SQLITE_OMIT_CTE
-/*
-** Argument pWith (which may be NULL) points to a linked list of nested 
-** WITH contexts, from inner to outermost. If the table identified by 
-** FROM clause element pItem is really a common-table-expression (CTE) 
-** then return a pointer to the CTE definition for that table. Otherwise
-** return NULL.
-**
-** If a non-NULL value is returned, set *ppContext to point to the With
-** object that the returned CTE belongs to.
-*/
-static struct Cte *searchWith(
-  With *pWith,                    /* Current innermost WITH clause */
-  struct SrcList_item *pItem,     /* FROM clause element to resolve */
-  With **ppContext                /* OUT: WITH clause return value belongs to */
-){
-  const char *zName;
-  if( pItem->zDatabase==0 && (zName = pItem->zName)!=0 ){
-    With *p;
-    for(p=pWith; p; p=p->pOuter){
-      int i;
-      for(i=0; i<p->nCte; i++){
-        if( tdsqlite3StrICmp(zName, p->a[i].zName)==0 ){
-          *ppContext = p;
-          return &p->a[i];
-        }
-      }
-    }
-  }
-  return 0;
-}
-
-/* The code generator maintains a stack of active WITH clauses
-** with the inner-most WITH clause being at the top of the stack.
-**
-** This routine pushes the WITH clause passed as the second argument
-** onto the top of the stack. If argument bFree is true, then this
-** WITH clause will never be popped from the stack. In this case it
-** should be freed along with the Parse object. In other cases, when
-** bFree==0, the With object will be freed along with the SELECT 
-** statement with which it is associated.
-*/
-SQLITE_PRIVATE void tdsqlite3WithPush(Parse *pParse, With *pWith, u8 bFree){
-  assert( bFree==0 || (pParse->pWith==0 && pParse->pWithToFree==0) );
-  if( pWith ){
-    assert( pParse->pWith!=pWith );
-    pWith->pOuter = pParse->pWith;
-    pParse->pWith = pWith;
-    if( bFree ) pParse->pWithToFree = pWith;
-  }
-}
-
-/*
-** This function checks if argument pFrom refers to a CTE declared by 
-** a WITH clause on the stack currently maintained by the parser. And,
-** if currently processing a CTE expression, if it is a recursive
-** reference to the current CTE.
-**
-** If pFrom falls into either of the two categories above, pFrom->pTab
-** and other fields are populated accordingly. The caller should check
-** (pFrom->pTab!=0) to determine whether or not a successful match
-** was found.
-**
-** Whether or not a match is found, SQLITE_OK is returned if no error
-** occurs. If an error does occur, an error message is stored in the
-** parser and some error code other than SQLITE_OK returned.
-*/
-static int withExpand(
-  Walker *pWalker, 
-  struct SrcList_item *pFrom
-){
-  Parse *pParse = pWalker->pParse;
-  tdsqlite3 *db = pParse->db;
-  struct Cte *pCte;               /* Matched CTE (or NULL if no match) */
-  With *pWith;                    /* WITH clause that pCte belongs to */
-
-  assert( pFrom->pTab==0 );
-  if( pParse->nErr ){
-    return SQLITE_ERROR;
-  }
-
-  pCte = searchWith(pParse->pWith, pFrom, &pWith);
-  if( pCte ){
-    Table *pTab;
-    ExprList *pEList;
-    Select *pSel;
-    Select *pLeft;                /* Left-most SELECT statement */
-    int bMayRecursive;            /* True if compound joined by UNION [ALL] */
-    With *pSavedWith;             /* Initial value of pParse->pWith */
-
-    /* If pCte->zCteErr is non-NULL at this point, then this is an illegal
-    ** recursive reference to CTE pCte. Leave an error in pParse and return
-    ** early. If pCte->zCteErr is NULL, then this is not a recursive reference.
-    ** In this case, proceed.  */
-    if( pCte->zCteErr ){
-      tdsqlite3ErrorMsg(pParse, pCte->zCteErr, pCte->zName);
-      return SQLITE_ERROR;
-    }
-    if( cannotBeFunction(pParse, pFrom) ) return SQLITE_ERROR;
-
-    assert( pFrom->pTab==0 );
-    pFrom->pTab = pTab = tdsqlite3DbMallocZero(db, sizeof(Table));
-    if( pTab==0 ) return WRC_Abort;
-    pTab->nTabRef = 1;
-    pTab->zName = tdsqlite3DbStrDup(db, pCte->zName);
-    pTab->iPKey = -1;
-    pTab->nRowLogEst = 200; assert( 200==tdsqlite3LogEst(1048576) );
-    pTab->tabFlags |= TF_Ephemeral | TF_NoVisibleRowid;
-    pFrom->pSelect = tdsqlite3SelectDup(db, pCte->pSelect, 0);
-    if( db->mallocFailed ) return SQLITE_NOMEM_BKPT;
-    assert( pFrom->pSelect );
-
-    /* Check if this is a recursive CTE. */
-    pSel = pFrom->pSelect;
-    bMayRecursive = ( pSel->op==TK_ALL || pSel->op==TK_UNION );
-    if( bMayRecursive ){
-      int i;
-      SrcList *pSrc = pFrom->pSelect->pSrc;
-      for(i=0; i<pSrc->nSrc; i++){
-        struct SrcList_item *pItem = &pSrc->a[i];
-        if( pItem->zDatabase==0 
-         && pItem->zName!=0 
-         && 0==tdsqlite3StrICmp(pItem->zName, pCte->zName)
-          ){
-          pItem->pTab = pTab;
-          pItem->fg.isRecursive = 1;
-          pTab->nTabRef++;
-          pSel->selFlags |= SF_Recursive;
-        }
-      }
-    }
-
-    /* Only one recursive reference is permitted. */ 
-    if( pTab->nTabRef>2 ){
-      tdsqlite3ErrorMsg(
-          pParse, "multiple references to recursive table: %s", pCte->zName
-      );
-      return SQLITE_ERROR;
-    }
-    assert( pTab->nTabRef==1 || 
-            ((pSel->selFlags&SF_Recursive) && pTab->nTabRef==2 ));
-
-    pCte->zCteErr = "circular reference: %s";
-    pSavedWith = pParse->pWith;
-    pParse->pWith = pWith;
-    if( bMayRecursive ){
-      Select *pPrior = pSel->pPrior;
-      assert( pPrior->pWith==0 );
-      pPrior->pWith = pSel->pWith;
-      tdsqlite3WalkSelect(pWalker, pPrior);
-      pPrior->pWith = 0;
-    }else{
-      tdsqlite3WalkSelect(pWalker, pSel);
-    }
-    pParse->pWith = pWith;
-
-    for(pLeft=pSel; pLeft->pPrior; pLeft=pLeft->pPrior);
-    pEList = pLeft->pEList;
-    if( pCte->pCols ){
-      if( pEList && pEList->nExpr!=pCte->pCols->nExpr ){
-        tdsqlite3ErrorMsg(pParse, "table %s has %d values for %d columns",
-            pCte->zName, pEList->nExpr, pCte->pCols->nExpr
-        );
-        pParse->pWith = pSavedWith;
-        return SQLITE_ERROR;
-      }
-      pEList = pCte->pCols;
-    }
-
-    tdsqlite3ColumnsFromExprList(pParse, pEList, &pTab->nCol, &pTab->aCol);
-    if( bMayRecursive ){
-      if( pSel->selFlags & SF_Recursive ){
-        pCte->zCteErr = "multiple recursive references: %s";
-      }else{
-        pCte->zCteErr = "recursive reference in a subquery: %s";
-      }
-      tdsqlite3WalkSelect(pWalker, pSel);
-    }
-    pCte->zCteErr = 0;
-    pParse->pWith = pSavedWith;
-  }
-
-  return SQLITE_OK;
-}
-#endif
-
-#ifndef SQLITE_OMIT_CTE
-/*
-** If the SELECT passed as the second argument has an associated WITH 
-** clause, pop it from the stack stored as part of the Parse object.
-**
-** This function is used as the xSelectCallback2() callback by
-** tdsqlite3SelectExpand() when walking a SELECT tree to resolve table
-** names and other FROM clause elements. 
-*/
-static void selectPopWith(Walker *pWalker, Select *p){
-  Parse *pParse = pWalker->pParse;
-  if( OK_IF_ALWAYS_TRUE(pParse->pWith) && p->pPrior==0 ){
-    With *pWith = findRightmost(p)->pWith;
-    if( pWith!=0 ){
-      assert( pParse->pWith==pWith || pParse->nErr );
-      pParse->pWith = pWith->pOuter;
-    }
-  }
-}
-#else
-#define selectPopWith 0
-#endif
-
-/*
-** The SrcList_item structure passed as the second argument represents a
-** sub-query in the FROM clause of a SELECT statement. This function
-** allocates and populates the SrcList_item.pTab object. If successful,
-** SQLITE_OK is returned. Otherwise, if an OOM error is encountered,
-** SQLITE_NOMEM.
-*/
-SQLITE_PRIVATE int tdsqlite3ExpandSubquery(Parse *pParse, struct SrcList_item *pFrom){
-  Select *pSel = pFrom->pSelect;
-  Table *pTab;
-
-  assert( pSel );
-  pFrom->pTab = pTab = tdsqlite3DbMallocZero(pParse->db, sizeof(Table));
-  if( pTab==0 ) return SQLITE_NOMEM;
-  pTab->nTabRef = 1;
-  if( pFrom->zAlias ){
-    pTab->zName = tdsqlite3DbStrDup(pParse->db, pFrom->zAlias);
-  }else{
-    pTab->zName = tdsqlite3MPrintf(pParse->db, "subquery_%u", pSel->selId);
-  }
-  while( pSel->pPrior ){ pSel = pSel->pPrior; }
-  tdsqlite3ColumnsFromExprList(pParse, pSel->pEList,&pTab->nCol,&pTab->aCol);
-  pTab->iPKey = -1;
-  pTab->nRowLogEst = 200; assert( 200==tdsqlite3LogEst(1048576) );
-  pTab->tabFlags |= TF_Ephemeral;
-
-  return pParse->nErr ? SQLITE_ERROR : SQLITE_OK;
-}
-
-/*
-** This routine is a Walker callback for "expanding" a SELECT statement.
-** "Expanding" means to do the following:
-**
-**    (1)  Make sure VDBE cursor numbers have been assigned to every
-**         element of the FROM clause.
-**
-**    (2)  Fill in the pTabList->a[].pTab fields in the SrcList that 
-**         defines FROM clause.  When views appear in the FROM clause,
-**         fill pTabList->a[].pSelect with a copy of the SELECT statement
-**         that implements the view.  A copy is made of the view's SELECT
-**         statement so that we can freely modify or delete that statement
-**         without worrying about messing up the persistent representation
-**         of the view.
-**
-**    (3)  Add terms to the WHERE clause to accommodate the NATURAL keyword
-**         on joins and the ON and USING clause of joins.
-**
-**    (4)  Scan the list of columns in the result set (pEList) looking
-**         for instances of the "*" operator or the TABLE.* operator.
-**         If found, expand each "*" to be every column in every table
-**         and TABLE.* to be every column in TABLE.
-**
-*/
-static int selectExpander(Walker *pWalker, Select *p){
-  Parse *pParse = pWalker->pParse;
-  int i, j, k;
-  SrcList *pTabList;
-  ExprList *pEList;
-  struct SrcList_item *pFrom;
-  tdsqlite3 *db = pParse->db;
-  Expr *pE, *pRight, *pExpr;
-  u16 selFlags = p->selFlags;
-  u32 elistFlags = 0;
-
-  p->selFlags |= SF_Expanded;
-  if( db->mallocFailed  ){
-    return WRC_Abort;
-  }
-  assert( p->pSrc!=0 );
-  if( (selFlags & SF_Expanded)!=0 ){
-    return WRC_Prune;
-  }
-  if( pWalker->eCode ){
-    /* Renumber selId because it has been copied from a view */
-    p->selId = ++pParse->nSelect;
-  }
-  pTabList = p->pSrc;
-  pEList = p->pEList;
-  tdsqlite3WithPush(pParse, p->pWith, 0);
-
-  /* Make sure cursor numbers have been assigned to all entries in
-  ** the FROM clause of the SELECT statement.
-  */
-  tdsqlite3SrcListAssignCursors(pParse, pTabList);
-
-  /* Look up every table named in the FROM clause of the select.  If
-  ** an entry of the FROM clause is a subquery instead of a table or view,
-  ** then create a transient table structure to describe the subquery.
-  */
-  for(i=0, pFrom=pTabList->a; i<pTabList->nSrc; i++, pFrom++){
-    Table *pTab;
-    assert( pFrom->fg.isRecursive==0 || pFrom->pTab!=0 );
-    if( pFrom->fg.isRecursive ) continue;
-    assert( pFrom->pTab==0 );
-#ifndef SQLITE_OMIT_CTE
-    if( withExpand(pWalker, pFrom) ) return WRC_Abort;
-    if( pFrom->pTab ) {} else
-#endif
-    if( pFrom->zName==0 ){
-#ifndef SQLITE_OMIT_SUBQUERY
-      Select *pSel = pFrom->pSelect;
-      /* A sub-query in the FROM clause of a SELECT */
-      assert( pSel!=0 );
-      assert( pFrom->pTab==0 );
-      if( tdsqlite3WalkSelect(pWalker, pSel) ) return WRC_Abort;
-      if( tdsqlite3ExpandSubquery(pParse, pFrom) ) return WRC_Abort;
-#endif
-    }else{
-      /* An ordinary table or view name in the FROM clause */
-      assert( pFrom->pTab==0 );
-      pFrom->pTab = pTab = tdsqlite3LocateTableItem(pParse, 0, pFrom);
-      if( pTab==0 ) return WRC_Abort;
-      if( pTab->nTabRef>=0xffff ){
-        tdsqlite3ErrorMsg(pParse, "too many references to \"%s\": max 65535",
-           pTab->zName);
-        pFrom->pTab = 0;
-        return WRC_Abort;
-      }
-      pTab->nTabRef++;
-      if( !IsVirtual(pTab) && cannotBeFunction(pParse, pFrom) ){
-        return WRC_Abort;
-      }
-#if !defined(SQLITE_OMIT_VIEW) || !defined(SQLITE_OMIT_VIRTUALTABLE)
-      if( IsVirtual(pTab) || pTab->pSelect ){
-        i16 nCol;
-        u8 eCodeOrig = pWalker->eCode;
-        if( tdsqlite3ViewGetColumnNames(pParse, pTab) ) return WRC_Abort;
-        assert( pFrom->pSelect==0 );
-        if( pTab->pSelect && (db->flags & SQLITE_EnableView)==0 ){
-          tdsqlite3ErrorMsg(pParse, "access to view \"%s\" prohibited",
-            pTab->zName);
-        }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-        if( IsVirtual(pTab)
-         && pFrom->fg.fromDDL
-         && ALWAYS(pTab->pVTable!=0)
-         && pTab->pVTable->eVtabRisk > ((db->flags & SQLITE_TrustedSchema)!=0)
-        ){
-          tdsqlite3ErrorMsg(pParse, "unsafe use of virtual table \"%s\"",
-                                  pTab->zName);
-        }
-#endif
-        pFrom->pSelect = tdsqlite3SelectDup(db, pTab->pSelect, 0);
-        nCol = pTab->nCol;
-        pTab->nCol = -1;
-        pWalker->eCode = 1;  /* Turn on Select.selId renumbering */
-        tdsqlite3WalkSelect(pWalker, pFrom->pSelect);
-        pWalker->eCode = eCodeOrig;
-        pTab->nCol = nCol;
-      }
-#endif
-    }
-
-    /* Locate the index named by the INDEXED BY clause, if any. */
-    if( tdsqlite3IndexedByLookup(pParse, pFrom) ){
-      return WRC_Abort;
-    }
-  }
-
-  /* Process NATURAL keywords, and ON and USING clauses of joins.
-  */
-  if( pParse->nErr || db->mallocFailed || sqliteProcessJoin(pParse, p) ){
-    return WRC_Abort;
-  }
-
-  /* For every "*" that occurs in the column list, insert the names of
-  ** all columns in all tables.  And for every TABLE.* insert the names
-  ** of all columns in TABLE.  The parser inserted a special expression
-  ** with the TK_ASTERISK operator for each "*" that it found in the column
-  ** list.  The following code just has to locate the TK_ASTERISK
-  ** expressions and expand each one to the list of all columns in
-  ** all tables.
-  **
-  ** The first loop just checks to see if there are any "*" operators
-  ** that need expanding.
-  */
-  for(k=0; k<pEList->nExpr; k++){
-    pE = pEList->a[k].pExpr;
-    if( pE->op==TK_ASTERISK ) break;
-    assert( pE->op!=TK_DOT || pE->pRight!=0 );
-    assert( pE->op!=TK_DOT || (pE->pLeft!=0 && pE->pLeft->op==TK_ID) );
-    if( pE->op==TK_DOT && pE->pRight->op==TK_ASTERISK ) break;
-    elistFlags |= pE->flags;
-  }
-  if( k<pEList->nExpr ){
-    /*
-    ** If we get here it means the result set contains one or more "*"
-    ** operators that need to be expanded.  Loop through each expression
-    ** in the result set and expand them one by one.
-    */
-    struct ExprList_item *a = pEList->a;
-    ExprList *pNew = 0;
-    int flags = pParse->db->flags;
-    int longNames = (flags & SQLITE_FullColNames)!=0
-                      && (flags & SQLITE_ShortColNames)==0;
-
-    for(k=0; k<pEList->nExpr; k++){
-      pE = a[k].pExpr;
-      elistFlags |= pE->flags;
-      pRight = pE->pRight;
-      assert( pE->op!=TK_DOT || pRight!=0 );
-      if( pE->op!=TK_ASTERISK
-       && (pE->op!=TK_DOT || pRight->op!=TK_ASTERISK)
-      ){
-        /* This particular expression does not need to be expanded.
-        */
-        pNew = tdsqlite3ExprListAppend(pParse, pNew, a[k].pExpr);
-        if( pNew ){
-          pNew->a[pNew->nExpr-1].zEName = a[k].zEName;
-          pNew->a[pNew->nExpr-1].eEName = a[k].eEName;
-          a[k].zEName = 0;
-        }
-        a[k].pExpr = 0;
-      }else{
-        /* This expression is a "*" or a "TABLE.*" and needs to be
-        ** expanded. */
-        int tableSeen = 0;      /* Set to 1 when TABLE matches */
-        char *zTName = 0;       /* text of name of TABLE */
-        if( pE->op==TK_DOT ){
-          assert( pE->pLeft!=0 );
-          assert( !ExprHasProperty(pE->pLeft, EP_IntValue) );
-          zTName = pE->pLeft->u.zToken;
-        }
-        for(i=0, pFrom=pTabList->a; i<pTabList->nSrc; i++, pFrom++){
-          Table *pTab = pFrom->pTab;
-          Select *pSub = pFrom->pSelect;
-          char *zTabName = pFrom->zAlias;
-          const char *zSchemaName = 0;
-          int iDb;
-          if( zTabName==0 ){
-            zTabName = pTab->zName;
-          }
-          if( db->mallocFailed ) break;
-          if( pSub==0 || (pSub->selFlags & SF_NestedFrom)==0 ){
-            pSub = 0;
-            if( zTName && tdsqlite3StrICmp(zTName, zTabName)!=0 ){
-              continue;
-            }
-            iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-            zSchemaName = iDb>=0 ? db->aDb[iDb].zDbSName : "*";
-          }
-          for(j=0; j<pTab->nCol; j++){
-            char *zName = pTab->aCol[j].zName;
-            char *zColname;  /* The computed column name */
-            char *zToFree;   /* Malloced string that needs to be freed */
-            Token sColname;  /* Computed column name as a token */
-
-            assert( zName );
-            if( zTName && pSub
-             && tdsqlite3MatchEName(&pSub->pEList->a[j], 0, zTName, 0)==0
-            ){
-              continue;
-            }
-
-            /* If a column is marked as 'hidden', omit it from the expanded
-            ** result-set list unless the SELECT has the SF_IncludeHidden
-            ** bit set.
-            */
-            if( (p->selFlags & SF_IncludeHidden)==0
-             && IsHiddenColumn(&pTab->aCol[j]) 
-            ){
-              continue;
-            }
-            tableSeen = 1;
-
-            if( i>0 && zTName==0 ){
-              if( (pFrom->fg.jointype & JT_NATURAL)!=0
-                && tableAndColumnIndex(pTabList, i, zName, 0, 0, 1)
-              ){
-                /* In a NATURAL join, omit the join columns from the 
-                ** table to the right of the join */
-                continue;
-              }
-              if( tdsqlite3IdListIndex(pFrom->pUsing, zName)>=0 ){
-                /* In a join with a USING clause, omit columns in the
-                ** using clause from the table on the right. */
-                continue;
-              }
-            }
-            pRight = tdsqlite3Expr(db, TK_ID, zName);
-            zColname = zName;
-            zToFree = 0;
-            if( longNames || pTabList->nSrc>1 ){
-              Expr *pLeft;
-              pLeft = tdsqlite3Expr(db, TK_ID, zTabName);
-              pExpr = tdsqlite3PExpr(pParse, TK_DOT, pLeft, pRight);
-              if( zSchemaName ){
-                pLeft = tdsqlite3Expr(db, TK_ID, zSchemaName);
-                pExpr = tdsqlite3PExpr(pParse, TK_DOT, pLeft, pExpr);
-              }
-              if( longNames ){
-                zColname = tdsqlite3MPrintf(db, "%s.%s", zTabName, zName);
-                zToFree = zColname;
-              }
-            }else{
-              pExpr = pRight;
-            }
-            pNew = tdsqlite3ExprListAppend(pParse, pNew, pExpr);
-            tdsqlite3TokenInit(&sColname, zColname);
-            tdsqlite3ExprListSetName(pParse, pNew, &sColname, 0);
-            if( pNew && (p->selFlags & SF_NestedFrom)!=0 ){
-              struct ExprList_item *pX = &pNew->a[pNew->nExpr-1];
-              tdsqlite3DbFree(db, pX->zEName);
-              if( pSub ){
-                pX->zEName = tdsqlite3DbStrDup(db, pSub->pEList->a[j].zEName);
-                testcase( pX->zEName==0 );
-              }else{
-                pX->zEName = tdsqlite3MPrintf(db, "%s.%s.%s",
-                                           zSchemaName, zTabName, zColname);
-                testcase( pX->zEName==0 );
-              }
-              pX->eEName = ENAME_TAB;
-            }
-            tdsqlite3DbFree(db, zToFree);
-          }
-        }
-        if( !tableSeen ){
-          if( zTName ){
-            tdsqlite3ErrorMsg(pParse, "no such table: %s", zTName);
-          }else{
-            tdsqlite3ErrorMsg(pParse, "no tables specified");
-          }
-        }
-      }
-    }
-    tdsqlite3ExprListDelete(db, pEList);
-    p->pEList = pNew;
-  }
-  if( p->pEList ){
-    if( p->pEList->nExpr>db->aLimit[SQLITE_LIMIT_COLUMN] ){
-      tdsqlite3ErrorMsg(pParse, "too many columns in result set");
-      return WRC_Abort;
-    }
-    if( (elistFlags & (EP_HasFunc|EP_Subquery))!=0 ){
-      p->selFlags |= SF_ComplexResult;
-    }
-  }
-  return WRC_Continue;
-}
-
-/*
-** No-op routine for the parse-tree walker.
-**
-** When this routine is the Walker.xExprCallback then expression trees
-** are walked without any actions being taken at each node.  Presumably,
-** when this routine is used for Walker.xExprCallback then 
-** Walker.xSelectCallback is set to do something useful for every 
-** subquery in the parser tree.
-*/
-SQLITE_PRIVATE int tdsqlite3ExprWalkNoop(Walker *NotUsed, Expr *NotUsed2){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  return WRC_Continue;
-}
-
-/*
-** No-op routine for the parse-tree walker for SELECT statements.
-** subquery in the parser tree.
-*/
-SQLITE_PRIVATE int tdsqlite3SelectWalkNoop(Walker *NotUsed, Select *NotUsed2){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  return WRC_Continue;
-}
-
-#if SQLITE_DEBUG
-/*
-** Always assert.  This xSelectCallback2 implementation proves that the
-** xSelectCallback2 is never invoked.
-*/
-SQLITE_PRIVATE void tdsqlite3SelectWalkAssert2(Walker *NotUsed, Select *NotUsed2){
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  assert( 0 );
-}
-#endif
-/*
-** This routine "expands" a SELECT statement and all of its subqueries.
-** For additional information on what it means to "expand" a SELECT
-** statement, see the comment on the selectExpand worker callback above.
-**
-** Expanding a SELECT statement is the first step in processing a
-** SELECT statement.  The SELECT statement must be expanded before
-** name resolution is performed.
-**
-** If anything goes wrong, an error message is written into pParse.
-** The calling function can detect the problem by looking at pParse->nErr
-** and/or pParse->db->mallocFailed.
-*/
-static void tdsqlite3SelectExpand(Parse *pParse, Select *pSelect){
-  Walker w;
-  w.xExprCallback = tdsqlite3ExprWalkNoop;
-  w.pParse = pParse;
-  if( OK_IF_ALWAYS_TRUE(pParse->hasCompound) ){
-    w.xSelectCallback = convertCompoundSelectToSubquery;
-    w.xSelectCallback2 = 0;
-    tdsqlite3WalkSelect(&w, pSelect);
-  }
-  w.xSelectCallback = selectExpander;
-  w.xSelectCallback2 = selectPopWith;
-  w.eCode = 0;
-  tdsqlite3WalkSelect(&w, pSelect);
-}
-
-
-#ifndef SQLITE_OMIT_SUBQUERY
-/*
-** This is a Walker.xSelectCallback callback for the tdsqlite3SelectTypeInfo()
-** interface.
-**
-** For each FROM-clause subquery, add Column.zType and Column.zColl
-** information to the Table structure that represents the result set
-** of that subquery.
-**
-** The Table structure that represents the result set was constructed
-** by selectExpander() but the type and collation information was omitted
-** at that point because identifiers had not yet been resolved.  This
-** routine is called after identifier resolution.
-*/
-static void selectAddSubqueryTypeInfo(Walker *pWalker, Select *p){
-  Parse *pParse;
-  int i;
-  SrcList *pTabList;
-  struct SrcList_item *pFrom;
-
-  assert( p->selFlags & SF_Resolved );
-  if( p->selFlags & SF_HasTypeInfo ) return;
-  p->selFlags |= SF_HasTypeInfo;
-  pParse = pWalker->pParse;
-  pTabList = p->pSrc;
-  for(i=0, pFrom=pTabList->a; i<pTabList->nSrc; i++, pFrom++){
-    Table *pTab = pFrom->pTab;
-    assert( pTab!=0 );
-    if( (pTab->tabFlags & TF_Ephemeral)!=0 ){
-      /* A sub-query in the FROM clause of a SELECT */
-      Select *pSel = pFrom->pSelect;
-      if( pSel ){
-        while( pSel->pPrior ) pSel = pSel->pPrior;
-        tdsqlite3SelectAddColumnTypeAndCollation(pParse, pTab, pSel,
-                                               SQLITE_AFF_NONE);
-      }
-    }
-  }
-}
-#endif
-
-
-/*
-** This routine adds datatype and collating sequence information to
-** the Table structures of all FROM-clause subqueries in a
-** SELECT statement.
-**
-** Use this routine after name resolution.
-*/
-static void tdsqlite3SelectAddTypeInfo(Parse *pParse, Select *pSelect){
-#ifndef SQLITE_OMIT_SUBQUERY
-  Walker w;
-  w.xSelectCallback = tdsqlite3SelectWalkNoop;
-  w.xSelectCallback2 = selectAddSubqueryTypeInfo;
-  w.xExprCallback = tdsqlite3ExprWalkNoop;
-  w.pParse = pParse;
-  tdsqlite3WalkSelect(&w, pSelect);
-#endif
-}
-
-
-/*
-** This routine sets up a SELECT statement for processing.  The
-** following is accomplished:
-**
-**     *  VDBE Cursor numbers are assigned to all FROM-clause terms.
-**     *  Ephemeral Table objects are created for all FROM-clause subqueries.
-**     *  ON and USING clauses are shifted into WHERE statements
-**     *  Wildcards "*" and "TABLE.*" in result sets are expanded.
-**     *  Identifiers in expression are matched to tables.
-**
-** This routine acts recursively on all subqueries within the SELECT.
-*/
-SQLITE_PRIVATE void tdsqlite3SelectPrep(
-  Parse *pParse,         /* The parser context */
-  Select *p,             /* The SELECT statement being coded. */
-  NameContext *pOuterNC  /* Name context for container */
-){
-  assert( p!=0 || pParse->db->mallocFailed );
-  if( pParse->db->mallocFailed ) return;
-  if( p->selFlags & SF_HasTypeInfo ) return;
-  tdsqlite3SelectExpand(pParse, p);
-  if( pParse->nErr || pParse->db->mallocFailed ) return;
-  tdsqlite3ResolveSelectNames(pParse, p, pOuterNC);
-  if( pParse->nErr || pParse->db->mallocFailed ) return;
-  tdsqlite3SelectAddTypeInfo(pParse, p);
-}
-
-/*
-** Reset the aggregate accumulator.
-**
-** The aggregate accumulator is a set of memory cells that hold
-** intermediate results while calculating an aggregate.  This
-** routine generates code that stores NULLs in all of those memory
-** cells.
-*/
-static void resetAccumulator(Parse *pParse, AggInfo *pAggInfo){
-  Vdbe *v = pParse->pVdbe;
-  int i;
-  struct AggInfo_func *pFunc;
-  int nReg = pAggInfo->nFunc + pAggInfo->nColumn;
-  if( nReg==0 ) return;
-#ifdef SQLITE_DEBUG
-  /* Verify that all AggInfo registers are within the range specified by
-  ** AggInfo.mnReg..AggInfo.mxReg */
-  assert( nReg==pAggInfo->mxReg-pAggInfo->mnReg+1 );
-  for(i=0; i<pAggInfo->nColumn; i++){
-    assert( pAggInfo->aCol[i].iMem>=pAggInfo->mnReg
-         && pAggInfo->aCol[i].iMem<=pAggInfo->mxReg );
-  }
-  for(i=0; i<pAggInfo->nFunc; i++){
-    assert( pAggInfo->aFunc[i].iMem>=pAggInfo->mnReg
-         && pAggInfo->aFunc[i].iMem<=pAggInfo->mxReg );
-  }
-#endif
-  tdsqlite3VdbeAddOp3(v, OP_Null, 0, pAggInfo->mnReg, pAggInfo->mxReg);
-  for(pFunc=pAggInfo->aFunc, i=0; i<pAggInfo->nFunc; i++, pFunc++){
-    if( pFunc->iDistinct>=0 ){
-      Expr *pE = pFunc->pExpr;
-      assert( !ExprHasProperty(pE, EP_xIsSelect) );
-      if( pE->x.pList==0 || pE->x.pList->nExpr!=1 ){
-        tdsqlite3ErrorMsg(pParse, "DISTINCT aggregates must have exactly one "
-           "argument");
-        pFunc->iDistinct = -1;
-      }else{
-        KeyInfo *pKeyInfo = tdsqlite3KeyInfoFromExprList(pParse, pE->x.pList,0,0);
-        tdsqlite3VdbeAddOp4(v, OP_OpenEphemeral, pFunc->iDistinct, 0, 0,
-                          (char*)pKeyInfo, P4_KEYINFO);
-      }
-    }
-  }
-}
-
-/*
-** Invoke the OP_AggFinalize opcode for every aggregate function
-** in the AggInfo structure.
-*/
-static void finalizeAggFunctions(Parse *pParse, AggInfo *pAggInfo){
-  Vdbe *v = pParse->pVdbe;
-  int i;
-  struct AggInfo_func *pF;
-  for(i=0, pF=pAggInfo->aFunc; i<pAggInfo->nFunc; i++, pF++){
-    ExprList *pList = pF->pExpr->x.pList;
-    assert( !ExprHasProperty(pF->pExpr, EP_xIsSelect) );
-    tdsqlite3VdbeAddOp2(v, OP_AggFinal, pF->iMem, pList ? pList->nExpr : 0);
-    tdsqlite3VdbeAppendP4(v, pF->pFunc, P4_FUNCDEF);
-  }
-}
-
-
-/*
-** Update the accumulator memory cells for an aggregate based on
-** the current cursor position.
-**
-** If regAcc is non-zero and there are no min() or max() aggregates
-** in pAggInfo, then only populate the pAggInfo->nAccumulator accumulator
-** registers if register regAcc contains 0. The caller will take care
-** of setting and clearing regAcc.
-*/
-static void updateAccumulator(Parse *pParse, int regAcc, AggInfo *pAggInfo){
-  Vdbe *v = pParse->pVdbe;
-  int i;
-  int regHit = 0;
-  int addrHitTest = 0;
-  struct AggInfo_func *pF;
-  struct AggInfo_col *pC;
-
-  pAggInfo->directMode = 1;
-  for(i=0, pF=pAggInfo->aFunc; i<pAggInfo->nFunc; i++, pF++){
-    int nArg;
-    int addrNext = 0;
-    int regAgg;
-    ExprList *pList = pF->pExpr->x.pList;
-    assert( !ExprHasProperty(pF->pExpr, EP_xIsSelect) );
-    assert( !IsWindowFunc(pF->pExpr) );
-    if( ExprHasProperty(pF->pExpr, EP_WinFunc) ){
-      Expr *pFilter = pF->pExpr->y.pWin->pFilter;
-      if( pAggInfo->nAccumulator 
-       && (pF->pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL) 
-      ){
-        if( regHit==0 ) regHit = ++pParse->nMem;
-        /* If this is the first row of the group (regAcc==0), clear the
-        ** "magnet" register regHit so that the accumulator registers
-        ** are populated if the FILTER clause jumps over the the 
-        ** invocation of min() or max() altogether. Or, if this is not
-        ** the first row (regAcc==1), set the magnet register so that the
-        ** accumulators are not populated unless the min()/max() is invoked and
-        ** indicates that they should be.  */
-        tdsqlite3VdbeAddOp2(v, OP_Copy, regAcc, regHit);
-      }
-      addrNext = tdsqlite3VdbeMakeLabel(pParse);
-      tdsqlite3ExprIfFalse(pParse, pFilter, addrNext, SQLITE_JUMPIFNULL);
-    }
-    if( pList ){
-      nArg = pList->nExpr;
-      regAgg = tdsqlite3GetTempRange(pParse, nArg);
-      tdsqlite3ExprCodeExprList(pParse, pList, regAgg, 0, SQLITE_ECEL_DUP);
-    }else{
-      nArg = 0;
-      regAgg = 0;
-    }
-    if( pF->iDistinct>=0 ){
-      if( addrNext==0 ){ 
-        addrNext = tdsqlite3VdbeMakeLabel(pParse);
-      }
-      testcase( nArg==0 );  /* Error condition */
-      testcase( nArg>1 );   /* Also an error */
-      codeDistinct(pParse, pF->iDistinct, addrNext, 1, regAgg);
-    }
-    if( pF->pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL ){
-      CollSeq *pColl = 0;
-      struct ExprList_item *pItem;
-      int j;
-      assert( pList!=0 );  /* pList!=0 if pF->pFunc has NEEDCOLL */
-      for(j=0, pItem=pList->a; !pColl && j<nArg; j++, pItem++){
-        pColl = tdsqlite3ExprCollSeq(pParse, pItem->pExpr);
-      }
-      if( !pColl ){
-        pColl = pParse->db->pDfltColl;
-      }
-      if( regHit==0 && pAggInfo->nAccumulator ) regHit = ++pParse->nMem;
-      tdsqlite3VdbeAddOp4(v, OP_CollSeq, regHit, 0, 0, (char *)pColl, P4_COLLSEQ);
-    }
-    tdsqlite3VdbeAddOp3(v, OP_AggStep, 0, regAgg, pF->iMem);
-    tdsqlite3VdbeAppendP4(v, pF->pFunc, P4_FUNCDEF);
-    tdsqlite3VdbeChangeP5(v, (u8)nArg);
-    tdsqlite3ReleaseTempRange(pParse, regAgg, nArg);
-    if( addrNext ){
-      tdsqlite3VdbeResolveLabel(v, addrNext);
-    }
-  }
-  if( regHit==0 && pAggInfo->nAccumulator ){
-    regHit = regAcc;
-  }
-  if( regHit ){
-    addrHitTest = tdsqlite3VdbeAddOp1(v, OP_If, regHit); VdbeCoverage(v);
-  }
-  for(i=0, pC=pAggInfo->aCol; i<pAggInfo->nAccumulator; i++, pC++){
-    tdsqlite3ExprCode(pParse, pC->pExpr, pC->iMem);
-  }
-
-  pAggInfo->directMode = 0;
-  if( addrHitTest ){
-    tdsqlite3VdbeJumpHere(v, addrHitTest);
-  }
-}
-
-/*
-** Add a single OP_Explain instruction to the VDBE to explain a simple
-** count(*) query ("SELECT count(*) FROM pTab").
-*/
-#ifndef SQLITE_OMIT_EXPLAIN
-static void explainSimpleCount(
-  Parse *pParse,                  /* Parse context */
-  Table *pTab,                    /* Table being queried */
-  Index *pIdx                     /* Index used to optimize scan, or NULL */
-){
-  if( pParse->explain==2 ){
-    int bCover = (pIdx!=0 && (HasRowid(pTab) || !IsPrimaryKeyIndex(pIdx)));
-    tdsqlite3VdbeExplain(pParse, 0, "SCAN TABLE %s%s%s",
-        pTab->zName,
-        bCover ? " USING COVERING INDEX " : "",
-        bCover ? pIdx->zName : ""
-    );
-  }
-}
-#else
-# define explainSimpleCount(a,b,c)
-#endif
-
-/*
-** tdsqlite3WalkExpr() callback used by havingToWhere().
-**
-** If the node passed to the callback is a TK_AND node, return 
-** WRC_Continue to tell tdsqlite3WalkExpr() to iterate through child nodes.
-**
-** Otherwise, return WRC_Prune. In this case, also check if the 
-** sub-expression matches the criteria for being moved to the WHERE
-** clause. If so, add it to the WHERE clause and replace the sub-expression
-** within the HAVING expression with a constant "1".
-*/
-static int havingToWhereExprCb(Walker *pWalker, Expr *pExpr){
-  if( pExpr->op!=TK_AND ){
-    Select *pS = pWalker->u.pSelect;
-    if( tdsqlite3ExprIsConstantOrGroupBy(pWalker->pParse, pExpr, pS->pGroupBy) ){
-      tdsqlite3 *db = pWalker->pParse->db;
-      Expr *pNew = tdsqlite3Expr(db, TK_INTEGER, "1");
-      if( pNew ){
-        Expr *pWhere = pS->pWhere;
-        SWAP(Expr, *pNew, *pExpr);
-        pNew = tdsqlite3ExprAnd(pWalker->pParse, pWhere, pNew);
-        pS->pWhere = pNew;
-        pWalker->eCode = 1;
-      }
-    }
-    return WRC_Prune;
-  }
-  return WRC_Continue;
-}
-
-/*
-** Transfer eligible terms from the HAVING clause of a query, which is
-** processed after grouping, to the WHERE clause, which is processed before
-** grouping. For example, the query:
-**
-**   SELECT * FROM <tables> WHERE a=? GROUP BY b HAVING b=? AND c=?
-**
-** can be rewritten as:
-**
-**   SELECT * FROM <tables> WHERE a=? AND b=? GROUP BY b HAVING c=?
-**
-** A term of the HAVING expression is eligible for transfer if it consists
-** entirely of constants and expressions that are also GROUP BY terms that
-** use the "BINARY" collation sequence.
-*/
-static void havingToWhere(Parse *pParse, Select *p){
-  Walker sWalker;
-  memset(&sWalker, 0, sizeof(sWalker));
-  sWalker.pParse = pParse;
-  sWalker.xExprCallback = havingToWhereExprCb;
-  sWalker.u.pSelect = p;
-  tdsqlite3WalkExpr(&sWalker, p->pHaving);
-#if SELECTTRACE_ENABLED
-  if( sWalker.eCode && (tdsqlite3SelectTrace & 0x100)!=0 ){
-    SELECTTRACE(0x100,pParse,p,("Move HAVING terms into WHERE:\n"));
-    tdsqlite3TreeViewSelect(0, p, 0);
-  }
-#endif
-}
-
-/*
-** Check to see if the pThis entry of pTabList is a self-join of a prior view.
-** If it is, then return the SrcList_item for the prior view.  If it is not,
-** then return 0.
-*/
-static struct SrcList_item *isSelfJoinView(
-  SrcList *pTabList,           /* Search for self-joins in this FROM clause */
-  struct SrcList_item *pThis   /* Search for prior reference to this subquery */
-){
-  struct SrcList_item *pItem;
-  for(pItem = pTabList->a; pItem<pThis; pItem++){
-    Select *pS1;
-    if( pItem->pSelect==0 ) continue;
-    if( pItem->fg.viaCoroutine ) continue;
-    if( pItem->zName==0 ) continue;
-    assert( pItem->pTab!=0 );
-    assert( pThis->pTab!=0 );
-    if( pItem->pTab->pSchema!=pThis->pTab->pSchema ) continue;
-    if( tdsqlite3_stricmp(pItem->zName, pThis->zName)!=0 ) continue;
-    pS1 = pItem->pSelect;
-    if( pItem->pTab->pSchema==0 && pThis->pSelect->selId!=pS1->selId ){
-      /* The query flattener left two different CTE tables with identical
-      ** names in the same FROM clause. */
-      continue;
-    }
-    if( tdsqlite3ExprCompare(0, pThis->pSelect->pWhere, pS1->pWhere, -1)
-     || tdsqlite3ExprCompare(0, pThis->pSelect->pHaving, pS1->pHaving, -1) 
-    ){
-      /* The view was modified by some other optimization such as
-      ** pushDownWhereTerms() */
-      continue;
-    }
-    return pItem;
-  }
-  return 0;
-}
-
-#ifdef SQLITE_COUNTOFVIEW_OPTIMIZATION
-/*
-** Attempt to transform a query of the form
-**
-**    SELECT count(*) FROM (SELECT x FROM t1 UNION ALL SELECT y FROM t2)
-**
-** Into this:
-**
-**    SELECT (SELECT count(*) FROM t1)+(SELECT count(*) FROM t2)
-**
-** The transformation only works if all of the following are true:
-**
-**   *  The subquery is a UNION ALL of two or more terms
-**   *  The subquery does not have a LIMIT clause
-**   *  There is no WHERE or GROUP BY or HAVING clauses on the subqueries
-**   *  The outer query is a simple count(*) with no WHERE clause or other
-**      extraneous syntax.
-**
-** Return TRUE if the optimization is undertaken.
-*/
-static int countOfViewOptimization(Parse *pParse, Select *p){
-  Select *pSub, *pPrior;
-  Expr *pExpr;
-  Expr *pCount;
-  tdsqlite3 *db;
-  if( (p->selFlags & SF_Aggregate)==0 ) return 0;   /* This is an aggregate */
-  if( p->pEList->nExpr!=1 ) return 0;               /* Single result column */
-  if( p->pWhere ) return 0;
-  if( p->pGroupBy ) return 0;
-  pExpr = p->pEList->a[0].pExpr;
-  if( pExpr->op!=TK_AGG_FUNCTION ) return 0;        /* Result is an aggregate */
-  if( tdsqlite3_stricmp(pExpr->u.zToken,"count") ) return 0;  /* Is count() */
-  if( pExpr->x.pList!=0 ) return 0;                 /* Must be count(*) */
-  if( p->pSrc->nSrc!=1 ) return 0;                  /* One table in FROM  */
-  pSub = p->pSrc->a[0].pSelect;
-  if( pSub==0 ) return 0;                           /* The FROM is a subquery */
-  if( pSub->pPrior==0 ) return 0;                   /* Must be a compound ry */
-  do{
-    if( pSub->op!=TK_ALL && pSub->pPrior ) return 0;  /* Must be UNION ALL */
-    if( pSub->pWhere ) return 0;                      /* No WHERE clause */
-    if( pSub->pLimit ) return 0;                      /* No LIMIT clause */
-    if( pSub->selFlags & SF_Aggregate ) return 0;     /* Not an aggregate */
-    pSub = pSub->pPrior;                              /* Repeat over compound */
-  }while( pSub );
-
-  /* If we reach this point then it is OK to perform the transformation */
-
-  db = pParse->db;
-  pCount = pExpr;
-  pExpr = 0;
-  pSub = p->pSrc->a[0].pSelect;
-  p->pSrc->a[0].pSelect = 0;
-  tdsqlite3SrcListDelete(db, p->pSrc);
-  p->pSrc = tdsqlite3DbMallocZero(pParse->db, sizeof(*p->pSrc));
-  while( pSub ){
-    Expr *pTerm;
-    pPrior = pSub->pPrior;
-    pSub->pPrior = 0;
-    pSub->pNext = 0;
-    pSub->selFlags |= SF_Aggregate;
-    pSub->selFlags &= ~SF_Compound;
-    pSub->nSelectRow = 0;
-    tdsqlite3ExprListDelete(db, pSub->pEList);
-    pTerm = pPrior ? tdsqlite3ExprDup(db, pCount, 0) : pCount;
-    pSub->pEList = tdsqlite3ExprListAppend(pParse, 0, pTerm);
-    pTerm = tdsqlite3PExpr(pParse, TK_SELECT, 0, 0);
-    tdsqlite3PExprAddSelect(pParse, pTerm, pSub);
-    if( pExpr==0 ){
-      pExpr = pTerm;
-    }else{
-      pExpr = tdsqlite3PExpr(pParse, TK_PLUS, pTerm, pExpr);
-    }
-    pSub = pPrior;
-  }
-  p->pEList->a[0].pExpr = pExpr;
-  p->selFlags &= ~SF_Aggregate;
-
-#if SELECTTRACE_ENABLED
-  if( tdsqlite3SelectTrace & 0x400 ){
-    SELECTTRACE(0x400,pParse,p,("After count-of-view optimization:\n"));
-    tdsqlite3TreeViewSelect(0, p, 0);
-  }
-#endif
-  return 1;
-}
-#endif /* SQLITE_COUNTOFVIEW_OPTIMIZATION */
-
-/*
-** Generate code for the SELECT statement given in the p argument.  
-**
-** The results are returned according to the SelectDest structure.
-** See comments in sqliteInt.h for further information.
-**
-** This routine returns the number of errors.  If any errors are
-** encountered, then an appropriate error message is left in
-** pParse->zErrMsg.
-**
-** This routine does NOT free the Select structure passed in.  The
-** calling function needs to do that.
-*/
-SQLITE_PRIVATE int tdsqlite3Select(
-  Parse *pParse,         /* The parser context */
-  Select *p,             /* The SELECT statement being coded. */
-  SelectDest *pDest      /* What to do with the query results */
-){
-  int i, j;              /* Loop counters */
-  WhereInfo *pWInfo;     /* Return from tdsqlite3WhereBegin() */
-  Vdbe *v;               /* The virtual machine under construction */
-  int isAgg;             /* True for select lists like "count(*)" */
-  ExprList *pEList = 0;  /* List of columns to extract. */
-  SrcList *pTabList;     /* List of tables to select from */
-  Expr *pWhere;          /* The WHERE clause.  May be NULL */
-  ExprList *pGroupBy;    /* The GROUP BY clause.  May be NULL */
-  Expr *pHaving;         /* The HAVING clause.  May be NULL */
-  int rc = 1;            /* Value to return from this function */
-  DistinctCtx sDistinct; /* Info on how to code the DISTINCT keyword */
-  SortCtx sSort;         /* Info on how to code the ORDER BY clause */
-  AggInfo sAggInfo;      /* Information used by aggregate queries */
-  int iEnd;              /* Address of the end of the query */
-  tdsqlite3 *db;           /* The database connection */
-  ExprList *pMinMaxOrderBy = 0;  /* Added ORDER BY for min/max queries */
-  u8 minMaxFlag;                 /* Flag for min/max queries */
-
-  db = pParse->db;
-  v = tdsqlite3GetVdbe(pParse);
-  if( p==0 || db->mallocFailed || pParse->nErr ){
-    return 1;
-  }
-  if( tdsqlite3AuthCheck(pParse, SQLITE_SELECT, 0, 0, 0) ) return 1;
-  memset(&sAggInfo, 0, sizeof(sAggInfo));
-#if SELECTTRACE_ENABLED
-  SELECTTRACE(1,pParse,p, ("begin processing:\n", pParse->addrExplain));
-  if( tdsqlite3SelectTrace & 0x100 ){
-    tdsqlite3TreeViewSelect(0, p, 0);
-  }
-#endif
-
-  assert( p->pOrderBy==0 || pDest->eDest!=SRT_DistFifo );
-  assert( p->pOrderBy==0 || pDest->eDest!=SRT_Fifo );
-  assert( p->pOrderBy==0 || pDest->eDest!=SRT_DistQueue );
-  assert( p->pOrderBy==0 || pDest->eDest!=SRT_Queue );
-  if( IgnorableOrderby(pDest) ){
-    assert(pDest->eDest==SRT_Exists || pDest->eDest==SRT_Union || 
-           pDest->eDest==SRT_Except || pDest->eDest==SRT_Discard ||
-           pDest->eDest==SRT_Queue  || pDest->eDest==SRT_DistFifo ||
-           pDest->eDest==SRT_DistQueue || pDest->eDest==SRT_Fifo);
-    /* If ORDER BY makes no difference in the output then neither does
-    ** DISTINCT so it can be removed too. */
-    tdsqlite3ExprListDelete(db, p->pOrderBy);
-    p->pOrderBy = 0;
-    p->selFlags &= ~SF_Distinct;
-  }
-  tdsqlite3SelectPrep(pParse, p, 0);
-  if( pParse->nErr || db->mallocFailed ){
-    goto select_end;
-  }
-  assert( p->pEList!=0 );
-#if SELECTTRACE_ENABLED
-  if( tdsqlite3SelectTrace & 0x104 ){
-    SELECTTRACE(0x104,pParse,p, ("after name resolution:\n"));
-    tdsqlite3TreeViewSelect(0, p, 0);
-  }
-#endif
-
-  if( pDest->eDest==SRT_Output ){
-    generateColumnNames(pParse, p);
-  }
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  rc = tdsqlite3WindowRewrite(pParse, p);
-  if( rc ){
-    assert( db->mallocFailed || pParse->nErr>0 );
-    goto select_end;
-  }
-#if SELECTTRACE_ENABLED
-  if( p->pWin && (tdsqlite3SelectTrace & 0x108)!=0 ){
-    SELECTTRACE(0x104,pParse,p, ("after window rewrite:\n"));
-    tdsqlite3TreeViewSelect(0, p, 0);
-  }
-#endif
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-  pTabList = p->pSrc;
-  isAgg = (p->selFlags & SF_Aggregate)!=0;
-  memset(&sSort, 0, sizeof(sSort));
-  sSort.pOrderBy = p->pOrderBy;
-
-  /* Try to various optimizations (flattening subqueries, and strength
-  ** reduction of join operators) in the FROM clause up into the main query
-  */
-#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
-  for(i=0; !p->pPrior && i<pTabList->nSrc; i++){
-    struct SrcList_item *pItem = &pTabList->a[i];
-    Select *pSub = pItem->pSelect;
-    Table *pTab = pItem->pTab;
-
-    /* Convert LEFT JOIN into JOIN if there are terms of the right table
-    ** of the LEFT JOIN used in the WHERE clause.
-    */
-    if( (pItem->fg.jointype & JT_LEFT)!=0
-     && tdsqlite3ExprImpliesNonNullRow(p->pWhere, pItem->iCursor)
-     && OptimizationEnabled(db, SQLITE_SimplifyJoin)
-    ){
-      SELECTTRACE(0x100,pParse,p,
-                ("LEFT-JOIN simplifies to JOIN on term %d\n",i));
-      pItem->fg.jointype &= ~(JT_LEFT|JT_OUTER);
-      unsetJoinExpr(p->pWhere, pItem->iCursor);
-    }
-
-    /* No futher action if this term of the FROM clause is no a subquery */
-    if( pSub==0 ) continue;
-
-    /* Catch mismatch in the declared columns of a view and the number of
-    ** columns in the SELECT on the RHS */
-    if( pTab->nCol!=pSub->pEList->nExpr ){
-      tdsqlite3ErrorMsg(pParse, "expected %d columns for '%s' but got %d",
-                      pTab->nCol, pTab->zName, pSub->pEList->nExpr);
-      goto select_end;
-    }
-
-    /* Do not try to flatten an aggregate subquery.
-    **
-    ** Flattening an aggregate subquery is only possible if the outer query
-    ** is not a join.  But if the outer query is not a join, then the subquery
-    ** will be implemented as a co-routine and there is no advantage to
-    ** flattening in that case.
-    */
-    if( (pSub->selFlags & SF_Aggregate)!=0 ) continue;
-    assert( pSub->pGroupBy==0 );
-
-    /* If the outer query contains a "complex" result set (that is,
-    ** if the result set of the outer query uses functions or subqueries)
-    ** and if the subquery contains an ORDER BY clause and if
-    ** it will be implemented as a co-routine, then do not flatten.  This
-    ** restriction allows SQL constructs like this:
-    **
-    **  SELECT expensive_function(x)
-    **    FROM (SELECT x FROM tab ORDER BY y LIMIT 10);
-    **
-    ** The expensive_function() is only computed on the 10 rows that
-    ** are output, rather than every row of the table.
-    **
-    ** The requirement that the outer query have a complex result set
-    ** means that flattening does occur on simpler SQL constraints without
-    ** the expensive_function() like:
-    **
-    **  SELECT x FROM (SELECT x FROM tab ORDER BY y LIMIT 10);
-    */
-    if( pSub->pOrderBy!=0
-     && i==0
-     && (p->selFlags & SF_ComplexResult)!=0
-     && (pTabList->nSrc==1
-         || (pTabList->a[1].fg.jointype&(JT_LEFT|JT_CROSS))!=0)
-    ){
-      continue;
-    }
-
-    if( flattenSubquery(pParse, p, i, isAgg) ){
-      if( pParse->nErr ) goto select_end;
-      /* This subquery can be absorbed into its parent. */
-      i = -1;
-    }
-    pTabList = p->pSrc;
-    if( db->mallocFailed ) goto select_end;
-    if( !IgnorableOrderby(pDest) ){
-      sSort.pOrderBy = p->pOrderBy;
-    }
-  }
-#endif
-
-#ifndef SQLITE_OMIT_COMPOUND_SELECT
-  /* Handle compound SELECT statements using the separate multiSelect()
-  ** procedure.
-  */
-  if( p->pPrior ){
-    rc = multiSelect(pParse, p, pDest);
-#if SELECTTRACE_ENABLED
-    SELECTTRACE(0x1,pParse,p,("end compound-select processing\n"));
-    if( (tdsqlite3SelectTrace & 0x2000)!=0 && ExplainQueryPlanParent(pParse)==0 ){
-      tdsqlite3TreeViewSelect(0, p, 0);
-    }
-#endif
-    if( p->pNext==0 ) ExplainQueryPlanPop(pParse);
-    return rc;
-  }
-#endif
-
-  /* Do the WHERE-clause constant propagation optimization if this is
-  ** a join.  No need to speed time on this operation for non-join queries
-  ** as the equivalent optimization will be handled by query planner in
-  ** tdsqlite3WhereBegin().
-  */
-  if( pTabList->nSrc>1
-   && OptimizationEnabled(db, SQLITE_PropagateConst)
-   && propagateConstants(pParse, p)
-  ){
-#if SELECTTRACE_ENABLED
-    if( tdsqlite3SelectTrace & 0x100 ){
-      SELECTTRACE(0x100,pParse,p,("After constant propagation:\n"));
-      tdsqlite3TreeViewSelect(0, p, 0);
-    }
-#endif
-  }else{
-    SELECTTRACE(0x100,pParse,p,("Constant propagation not helpful\n"));
-  }
-
-#ifdef SQLITE_COUNTOFVIEW_OPTIMIZATION
-  if( OptimizationEnabled(db, SQLITE_QueryFlattener|SQLITE_CountOfView)
-   && countOfViewOptimization(pParse, p)
-  ){
-    if( db->mallocFailed ) goto select_end;
-    pEList = p->pEList;
-    pTabList = p->pSrc;
-  }
-#endif
-
-  /* For each term in the FROM clause, do two things:
-  ** (1) Authorized unreferenced tables
-  ** (2) Generate code for all sub-queries
-  */
-  for(i=0; i<pTabList->nSrc; i++){
-    struct SrcList_item *pItem = &pTabList->a[i];
-    SelectDest dest;
-    Select *pSub;
-#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
-    const char *zSavedAuthContext;
-#endif
-
-    /* Issue SQLITE_READ authorizations with a fake column name for any
-    ** tables that are referenced but from which no values are extracted.
-    ** Examples of where these kinds of null SQLITE_READ authorizations
-    ** would occur:
-    **
-    **     SELECT count(*) FROM t1;   -- SQLITE_READ t1.""
-    **     SELECT t1.* FROM t1, t2;   -- SQLITE_READ t2.""
-    **
-    ** The fake column name is an empty string.  It is possible for a table to
-    ** have a column named by the empty string, in which case there is no way to
-    ** distinguish between an unreferenced table and an actual reference to the
-    ** "" column. The original design was for the fake column name to be a NULL,
-    ** which would be unambiguous.  But legacy authorization callbacks might
-    ** assume the column name is non-NULL and segfault.  The use of an empty
-    ** string for the fake column name seems safer.
-    */
-    if( pItem->colUsed==0 && pItem->zName!=0 ){
-      tdsqlite3AuthCheck(pParse, SQLITE_READ, pItem->zName, "", pItem->zDatabase);
-    }
-
-#if !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW)
-    /* Generate code for all sub-queries in the FROM clause
-    */
-    pSub = pItem->pSelect;
-    if( pSub==0 ) continue;
-
-    /* The code for a subquery should only be generated once, though it is
-    ** technically harmless for it to be generated multiple times. The
-    ** following assert() will detect if something changes to cause
-    ** the same subquery to be coded multiple times, as a signal to the
-    ** developers to try to optimize the situation.
-    **
-    ** Update 2019-07-24:
-    ** See ticket https://sqlite.org/src/tktview/c52b09c7f38903b1311cec40.
-    ** The dbsqlfuzz fuzzer found a case where the same subquery gets
-    ** coded twice.  So this assert() now becomes a testcase().  It should
-    ** be very rare, though.
-    */
-    testcase( pItem->addrFillSub!=0 );
-
-    /* Increment Parse.nHeight by the height of the largest expression
-    ** tree referred to by this, the parent select. The child select
-    ** may contain expression trees of at most
-    ** (SQLITE_MAX_EXPR_DEPTH-Parse.nHeight) height. This is a bit
-    ** more conservative than necessary, but much easier than enforcing
-    ** an exact limit.
-    */
-    pParse->nHeight += tdsqlite3SelectExprHeight(p);
-
-    /* Make copies of constant WHERE-clause terms in the outer query down
-    ** inside the subquery.  This can help the subquery to run more efficiently.
-    */
-    if( OptimizationEnabled(db, SQLITE_PushDown)
-     && pushDownWhereTerms(pParse, pSub, p->pWhere, pItem->iCursor,
-                           (pItem->fg.jointype & JT_OUTER)!=0)
-    ){
-#if SELECTTRACE_ENABLED
-      if( tdsqlite3SelectTrace & 0x100 ){
-        SELECTTRACE(0x100,pParse,p,
-            ("After WHERE-clause push-down into subquery %d:\n", pSub->selId));
-        tdsqlite3TreeViewSelect(0, p, 0);
-      }
-#endif
-    }else{
-      SELECTTRACE(0x100,pParse,p,("Push-down not possible\n"));
-    }
-
-    zSavedAuthContext = pParse->zAuthContext;
-    pParse->zAuthContext = pItem->zName;
-
-    /* Generate code to implement the subquery
-    **
-    ** The subquery is implemented as a co-routine if the subquery is
-    ** guaranteed to be the outer loop (so that it does not need to be
-    ** computed more than once)
-    **
-    ** TODO: Are there other reasons beside (1) to use a co-routine
-    ** implementation?
-    */
-    if( i==0
-     && (pTabList->nSrc==1
-            || (pTabList->a[1].fg.jointype&(JT_LEFT|JT_CROSS))!=0)  /* (1) */
-    ){
-      /* Implement a co-routine that will return a single row of the result
-      ** set on each invocation.
-      */
-      int addrTop = tdsqlite3VdbeCurrentAddr(v)+1;
-     
-      pItem->regReturn = ++pParse->nMem;
-      tdsqlite3VdbeAddOp3(v, OP_InitCoroutine, pItem->regReturn, 0, addrTop);
-      VdbeComment((v, "%s", pItem->pTab->zName));
-      pItem->addrFillSub = addrTop;
-      tdsqlite3SelectDestInit(&dest, SRT_Coroutine, pItem->regReturn);
-      ExplainQueryPlan((pParse, 1, "CO-ROUTINE %u", pSub->selId));
-      tdsqlite3Select(pParse, pSub, &dest);
-      pItem->pTab->nRowLogEst = pSub->nSelectRow;
-      pItem->fg.viaCoroutine = 1;
-      pItem->regResult = dest.iSdst;
-      tdsqlite3VdbeEndCoroutine(v, pItem->regReturn);
-      tdsqlite3VdbeJumpHere(v, addrTop-1);
-      tdsqlite3ClearTempRegCache(pParse);
-    }else{
-      /* Generate a subroutine that will fill an ephemeral table with
-      ** the content of this subquery.  pItem->addrFillSub will point
-      ** to the address of the generated subroutine.  pItem->regReturn
-      ** is a register allocated to hold the subroutine return address
-      */
-      int topAddr;
-      int onceAddr = 0;
-      int retAddr;
-      struct SrcList_item *pPrior;
-
-      testcase( pItem->addrFillSub==0 ); /* Ticket c52b09c7f38903b1311 */
-      pItem->regReturn = ++pParse->nMem;
-      topAddr = tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pItem->regReturn);
-      pItem->addrFillSub = topAddr+1;
-      if( pItem->fg.isCorrelated==0 ){
-        /* If the subquery is not correlated and if we are not inside of
-        ** a trigger, then we only need to compute the value of the subquery
-        ** once. */
-        onceAddr = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-        VdbeComment((v, "materialize \"%s\"", pItem->pTab->zName));
-      }else{
-        VdbeNoopComment((v, "materialize \"%s\"", pItem->pTab->zName));
-      }
-      pPrior = isSelfJoinView(pTabList, pItem);
-      if( pPrior ){
-        tdsqlite3VdbeAddOp2(v, OP_OpenDup, pItem->iCursor, pPrior->iCursor);
-        assert( pPrior->pSelect!=0 );
-        pSub->nSelectRow = pPrior->pSelect->nSelectRow;
-      }else{
-        tdsqlite3SelectDestInit(&dest, SRT_EphemTab, pItem->iCursor);
-        ExplainQueryPlan((pParse, 1, "MATERIALIZE %u", pSub->selId));
-        tdsqlite3Select(pParse, pSub, &dest);
-      }
-      pItem->pTab->nRowLogEst = pSub->nSelectRow;
-      if( onceAddr ) tdsqlite3VdbeJumpHere(v, onceAddr);
-      retAddr = tdsqlite3VdbeAddOp1(v, OP_Return, pItem->regReturn);
-      VdbeComment((v, "end %s", pItem->pTab->zName));
-      tdsqlite3VdbeChangeP1(v, topAddr, retAddr);
-      tdsqlite3ClearTempRegCache(pParse);
-    }
-    if( db->mallocFailed ) goto select_end;
-    pParse->nHeight -= tdsqlite3SelectExprHeight(p);
-    pParse->zAuthContext = zSavedAuthContext;
-#endif
-  }
-
-  /* Various elements of the SELECT copied into local variables for
-  ** convenience */
-  pEList = p->pEList;
-  pWhere = p->pWhere;
-  pGroupBy = p->pGroupBy;
-  pHaving = p->pHaving;
-  sDistinct.isTnct = (p->selFlags & SF_Distinct)!=0;
-
-#if SELECTTRACE_ENABLED
-  if( tdsqlite3SelectTrace & 0x400 ){
-    SELECTTRACE(0x400,pParse,p,("After all FROM-clause analysis:\n"));
-    tdsqlite3TreeViewSelect(0, p, 0);
-  }
-#endif
-
-  /* If the query is DISTINCT with an ORDER BY but is not an aggregate, and 
-  ** if the select-list is the same as the ORDER BY list, then this query
-  ** can be rewritten as a GROUP BY. In other words, this:
-  **
-  **     SELECT DISTINCT xyz FROM ... ORDER BY xyz
-  **
-  ** is transformed to:
-  **
-  **     SELECT xyz FROM ... GROUP BY xyz ORDER BY xyz
-  **
-  ** The second form is preferred as a single index (or temp-table) may be 
-  ** used for both the ORDER BY and DISTINCT processing. As originally 
-  ** written the query must use a temp-table for at least one of the ORDER 
-  ** BY and DISTINCT, and an index or separate temp-table for the other.
-  */
-  if( (p->selFlags & (SF_Distinct|SF_Aggregate))==SF_Distinct 
-   && tdsqlite3ExprListCompare(sSort.pOrderBy, pEList, -1)==0
-#ifndef SQLITE_OMIT_WINDOWFUNC
-   && p->pWin==0
-#endif
-  ){
-    p->selFlags &= ~SF_Distinct;
-    pGroupBy = p->pGroupBy = tdsqlite3ExprListDup(db, pEList, 0);
-    p->selFlags |= SF_Aggregate;
-    /* Notice that even thought SF_Distinct has been cleared from p->selFlags,
-    ** the sDistinct.isTnct is still set.  Hence, isTnct represents the
-    ** original setting of the SF_Distinct flag, not the current setting */
-    assert( sDistinct.isTnct );
-
-#if SELECTTRACE_ENABLED
-    if( tdsqlite3SelectTrace & 0x400 ){
-      SELECTTRACE(0x400,pParse,p,("Transform DISTINCT into GROUP BY:\n"));
-      tdsqlite3TreeViewSelect(0, p, 0);
-    }
-#endif
-  }
-
-  /* If there is an ORDER BY clause, then create an ephemeral index to
-  ** do the sorting.  But this sorting ephemeral index might end up
-  ** being unused if the data can be extracted in pre-sorted order.
-  ** If that is the case, then the OP_OpenEphemeral instruction will be
-  ** changed to an OP_Noop once we figure out that the sorting index is
-  ** not needed.  The sSort.addrSortIndex variable is used to facilitate
-  ** that change.
-  */
-  if( sSort.pOrderBy ){
-    KeyInfo *pKeyInfo;
-    pKeyInfo = tdsqlite3KeyInfoFromExprList(
-        pParse, sSort.pOrderBy, 0, pEList->nExpr);
-    sSort.iECursor = pParse->nTab++;
-    sSort.addrSortIndex =
-      tdsqlite3VdbeAddOp4(v, OP_OpenEphemeral,
-          sSort.iECursor, sSort.pOrderBy->nExpr+1+pEList->nExpr, 0,
-          (char*)pKeyInfo, P4_KEYINFO
-      );
-  }else{
-    sSort.addrSortIndex = -1;
-  }
-
-  /* If the output is destined for a temporary table, open that table.
-  */
-  if( pDest->eDest==SRT_EphemTab ){
-    tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, pDest->iSDParm, pEList->nExpr);
-  }
-
-  /* Set the limiter.
-  */
-  iEnd = tdsqlite3VdbeMakeLabel(pParse);
-  if( (p->selFlags & SF_FixedLimit)==0 ){
-    p->nSelectRow = 320;  /* 4 billion rows */
-  }
-  computeLimitRegisters(pParse, p, iEnd);
-  if( p->iLimit==0 && sSort.addrSortIndex>=0 ){
-    tdsqlite3VdbeChangeOpcode(v, sSort.addrSortIndex, OP_SorterOpen);
-    sSort.sortFlags |= SORTFLAG_UseSorter;
-  }
-
-  /* Open an ephemeral index to use for the distinct set.
-  */
-  if( p->selFlags & SF_Distinct ){
-    sDistinct.tabTnct = pParse->nTab++;
-    sDistinct.addrTnct = tdsqlite3VdbeAddOp4(v, OP_OpenEphemeral,
-                       sDistinct.tabTnct, 0, 0,
-                       (char*)tdsqlite3KeyInfoFromExprList(pParse, p->pEList,0,0),
-                       P4_KEYINFO);
-    tdsqlite3VdbeChangeP5(v, BTREE_UNORDERED);
-    sDistinct.eTnctType = WHERE_DISTINCT_UNORDERED;
-  }else{
-    sDistinct.eTnctType = WHERE_DISTINCT_NOOP;
-  }
-
-  if( !isAgg && pGroupBy==0 ){
-    /* No aggregate functions and no GROUP BY clause */
-    u16 wctrlFlags = (sDistinct.isTnct ? WHERE_WANT_DISTINCT : 0)
-                   | (p->selFlags & SF_FixedLimit);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    Window *pWin = p->pWin;      /* Master window object (or NULL) */
-    if( pWin ){
-      tdsqlite3WindowCodeInit(pParse, p);
-    }
-#endif
-    assert( WHERE_USE_LIMIT==SF_FixedLimit );
-
-
-    /* Begin the database scan. */
-    SELECTTRACE(1,pParse,p,("WhereBegin\n"));
-    pWInfo = tdsqlite3WhereBegin(pParse, pTabList, pWhere, sSort.pOrderBy,
-                               p->pEList, wctrlFlags, p->nSelectRow);
-    if( pWInfo==0 ) goto select_end;
-    if( tdsqlite3WhereOutputRowCount(pWInfo) < p->nSelectRow ){
-      p->nSelectRow = tdsqlite3WhereOutputRowCount(pWInfo);
-    }
-    if( sDistinct.isTnct && tdsqlite3WhereIsDistinct(pWInfo) ){
-      sDistinct.eTnctType = tdsqlite3WhereIsDistinct(pWInfo);
-    }
-    if( sSort.pOrderBy ){
-      sSort.nOBSat = tdsqlite3WhereIsOrdered(pWInfo);
-      sSort.labelOBLopt = tdsqlite3WhereOrderByLimitOptLabel(pWInfo);
-      if( sSort.nOBSat==sSort.pOrderBy->nExpr ){
-        sSort.pOrderBy = 0;
-      }
-    }
-
-    /* If sorting index that was created by a prior OP_OpenEphemeral 
-    ** instruction ended up not being needed, then change the OP_OpenEphemeral
-    ** into an OP_Noop.
-    */
-    if( sSort.addrSortIndex>=0 && sSort.pOrderBy==0 ){
-      tdsqlite3VdbeChangeToNoop(v, sSort.addrSortIndex);
-    }
-
-    assert( p->pEList==pEList );
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    if( pWin ){
-      int addrGosub = tdsqlite3VdbeMakeLabel(pParse);
-      int iCont = tdsqlite3VdbeMakeLabel(pParse);
-      int iBreak = tdsqlite3VdbeMakeLabel(pParse);
-      int regGosub = ++pParse->nMem;
-
-      tdsqlite3WindowCodeStep(pParse, p, pWInfo, regGosub, addrGosub);
-
-      tdsqlite3VdbeAddOp2(v, OP_Goto, 0, iBreak);
-      tdsqlite3VdbeResolveLabel(v, addrGosub);
-      VdbeNoopComment((v, "inner-loop subroutine"));
-      sSort.labelOBLopt = 0;
-      selectInnerLoop(pParse, p, -1, &sSort, &sDistinct, pDest, iCont, iBreak);
-      tdsqlite3VdbeResolveLabel(v, iCont);
-      tdsqlite3VdbeAddOp1(v, OP_Return, regGosub);
-      VdbeComment((v, "end inner-loop subroutine"));
-      tdsqlite3VdbeResolveLabel(v, iBreak);
-    }else
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-    {
-      /* Use the standard inner loop. */
-      selectInnerLoop(pParse, p, -1, &sSort, &sDistinct, pDest,
-          tdsqlite3WhereContinueLabel(pWInfo),
-          tdsqlite3WhereBreakLabel(pWInfo));
-
-      /* End the database scan loop.
-      */
-      tdsqlite3WhereEnd(pWInfo);
-    }
-  }else{
-    /* This case when there exist aggregate functions or a GROUP BY clause
-    ** or both */
-    NameContext sNC;    /* Name context for processing aggregate information */
-    int iAMem;          /* First Mem address for storing current GROUP BY */
-    int iBMem;          /* First Mem address for previous GROUP BY */
-    int iUseFlag;       /* Mem address holding flag indicating that at least
-                        ** one row of the input to the aggregator has been
-                        ** processed */
-    int iAbortFlag;     /* Mem address which causes query abort if positive */
-    int groupBySort;    /* Rows come from source in GROUP BY order */
-    int addrEnd;        /* End of processing for this SELECT */
-    int sortPTab = 0;   /* Pseudotable used to decode sorting results */
-    int sortOut = 0;    /* Output register from the sorter */
-    int orderByGrp = 0; /* True if the GROUP BY and ORDER BY are the same */
-
-    /* Remove any and all aliases between the result set and the
-    ** GROUP BY clause.
-    */
-    if( pGroupBy ){
-      int k;                        /* Loop counter */
-      struct ExprList_item *pItem;  /* For looping over expression in a list */
-
-      for(k=p->pEList->nExpr, pItem=p->pEList->a; k>0; k--, pItem++){
-        pItem->u.x.iAlias = 0;
-      }
-      for(k=pGroupBy->nExpr, pItem=pGroupBy->a; k>0; k--, pItem++){
-        pItem->u.x.iAlias = 0;
-      }
-      assert( 66==tdsqlite3LogEst(100) );
-      if( p->nSelectRow>66 ) p->nSelectRow = 66;
-
-      /* If there is both a GROUP BY and an ORDER BY clause and they are
-      ** identical, then it may be possible to disable the ORDER BY clause 
-      ** on the grounds that the GROUP BY will cause elements to come out 
-      ** in the correct order. It also may not - the GROUP BY might use a
-      ** database index that causes rows to be grouped together as required
-      ** but not actually sorted. Either way, record the fact that the
-      ** ORDER BY and GROUP BY clauses are the same by setting the orderByGrp
-      ** variable.  */
-      if( sSort.pOrderBy && pGroupBy->nExpr==sSort.pOrderBy->nExpr ){
-        int ii;
-        /* The GROUP BY processing doesn't care whether rows are delivered in
-        ** ASC or DESC order - only that each group is returned contiguously.
-        ** So set the ASC/DESC flags in the GROUP BY to match those in the 
-        ** ORDER BY to maximize the chances of rows being delivered in an 
-        ** order that makes the ORDER BY redundant.  */
-        for(ii=0; ii<pGroupBy->nExpr; ii++){
-          u8 sortFlags = sSort.pOrderBy->a[ii].sortFlags & KEYINFO_ORDER_DESC;
-          pGroupBy->a[ii].sortFlags = sortFlags;
-        }
-        if( tdsqlite3ExprListCompare(pGroupBy, sSort.pOrderBy, -1)==0 ){
-          orderByGrp = 1;
-        }
-      }
-    }else{
-      assert( 0==tdsqlite3LogEst(1) );
-      p->nSelectRow = 0;
-    }
-
-    /* Create a label to jump to when we want to abort the query */
-    addrEnd = tdsqlite3VdbeMakeLabel(pParse);
-
-    /* Convert TK_COLUMN nodes into TK_AGG_COLUMN and make entries in
-    ** sAggInfo for all TK_AGG_FUNCTION nodes in expressions of the
-    ** SELECT statement.
-    */
-    memset(&sNC, 0, sizeof(sNC));
-    sNC.pParse = pParse;
-    sNC.pSrcList = pTabList;
-    sNC.uNC.pAggInfo = &sAggInfo;
-    VVA_ONLY( sNC.ncFlags = NC_UAggInfo; )
-    sAggInfo.mnReg = pParse->nMem+1;
-    sAggInfo.nSortingColumn = pGroupBy ? pGroupBy->nExpr : 0;
-    sAggInfo.pGroupBy = pGroupBy;
-    tdsqlite3ExprAnalyzeAggList(&sNC, pEList);
-    tdsqlite3ExprAnalyzeAggList(&sNC, sSort.pOrderBy);
-    if( pHaving ){
-      if( pGroupBy ){
-        assert( pWhere==p->pWhere );
-        assert( pHaving==p->pHaving );
-        assert( pGroupBy==p->pGroupBy );
-        havingToWhere(pParse, p);
-        pWhere = p->pWhere;
-      }
-      tdsqlite3ExprAnalyzeAggregates(&sNC, pHaving);
-    }
-    sAggInfo.nAccumulator = sAggInfo.nColumn;
-    if( p->pGroupBy==0 && p->pHaving==0 && sAggInfo.nFunc==1 ){
-      minMaxFlag = minMaxQuery(db, sAggInfo.aFunc[0].pExpr, &pMinMaxOrderBy);
-    }else{
-      minMaxFlag = WHERE_ORDERBY_NORMAL;
-    }
-    for(i=0; i<sAggInfo.nFunc; i++){
-      Expr *pExpr = sAggInfo.aFunc[i].pExpr;
-      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
-      sNC.ncFlags |= NC_InAggFunc;
-      tdsqlite3ExprAnalyzeAggList(&sNC, pExpr->x.pList);
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      assert( !IsWindowFunc(pExpr) );
-      if( ExprHasProperty(pExpr, EP_WinFunc) ){
-        tdsqlite3ExprAnalyzeAggregates(&sNC, pExpr->y.pWin->pFilter);
-      }
-#endif
-      sNC.ncFlags &= ~NC_InAggFunc;
-    }
-    sAggInfo.mxReg = pParse->nMem;
-    if( db->mallocFailed ) goto select_end;
-#if SELECTTRACE_ENABLED
-    if( tdsqlite3SelectTrace & 0x400 ){
-      int ii;
-      SELECTTRACE(0x400,pParse,p,("After aggregate analysis:\n"));
-      tdsqlite3TreeViewSelect(0, p, 0);
-      for(ii=0; ii<sAggInfo.nColumn; ii++){
-        tdsqlite3DebugPrintf("agg-column[%d] iMem=%d\n",
-            ii, sAggInfo.aCol[ii].iMem);
-        tdsqlite3TreeViewExpr(0, sAggInfo.aCol[ii].pExpr, 0);
-      }
-      for(ii=0; ii<sAggInfo.nFunc; ii++){
-        tdsqlite3DebugPrintf("agg-func[%d]: iMem=%d\n",
-            ii, sAggInfo.aFunc[ii].iMem);
-        tdsqlite3TreeViewExpr(0, sAggInfo.aFunc[ii].pExpr, 0);
-      }
-    }
-#endif
-
-
-    /* Processing for aggregates with GROUP BY is very different and
-    ** much more complex than aggregates without a GROUP BY.
-    */
-    if( pGroupBy ){
-      KeyInfo *pKeyInfo;  /* Keying information for the group by clause */
-      int addr1;          /* A-vs-B comparision jump */
-      int addrOutputRow;  /* Start of subroutine that outputs a result row */
-      int regOutputRow;   /* Return address register for output subroutine */
-      int addrSetAbort;   /* Set the abort flag and return */
-      int addrTopOfLoop;  /* Top of the input loop */
-      int addrSortingIdx; /* The OP_OpenEphemeral for the sorting index */
-      int addrReset;      /* Subroutine for resetting the accumulator */
-      int regReset;       /* Return address register for reset subroutine */
-
-      /* If there is a GROUP BY clause we might need a sorting index to
-      ** implement it.  Allocate that sorting index now.  If it turns out
-      ** that we do not need it after all, the OP_SorterOpen instruction
-      ** will be converted into a Noop.  
-      */
-      sAggInfo.sortingIdx = pParse->nTab++;
-      pKeyInfo = tdsqlite3KeyInfoFromExprList(pParse,pGroupBy,0,sAggInfo.nColumn);
-      addrSortingIdx = tdsqlite3VdbeAddOp4(v, OP_SorterOpen, 
-          sAggInfo.sortingIdx, sAggInfo.nSortingColumn, 
-          0, (char*)pKeyInfo, P4_KEYINFO);
-
-      /* Initialize memory locations used by GROUP BY aggregate processing
-      */
-      iUseFlag = ++pParse->nMem;
-      iAbortFlag = ++pParse->nMem;
-      regOutputRow = ++pParse->nMem;
-      addrOutputRow = tdsqlite3VdbeMakeLabel(pParse);
-      regReset = ++pParse->nMem;
-      addrReset = tdsqlite3VdbeMakeLabel(pParse);
-      iAMem = pParse->nMem + 1;
-      pParse->nMem += pGroupBy->nExpr;
-      iBMem = pParse->nMem + 1;
-      pParse->nMem += pGroupBy->nExpr;
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, iAbortFlag);
-      VdbeComment((v, "clear abort flag"));
-      tdsqlite3VdbeAddOp3(v, OP_Null, 0, iAMem, iAMem+pGroupBy->nExpr-1);
-
-      /* Begin a loop that will extract all source rows in GROUP BY order.
-      ** This might involve two separate loops with an OP_Sort in between, or
-      ** it might be a single loop that uses an index to extract information
-      ** in the right order to begin with.
-      */
-      tdsqlite3VdbeAddOp2(v, OP_Gosub, regReset, addrReset);
-      SELECTTRACE(1,pParse,p,("WhereBegin\n"));
-      pWInfo = tdsqlite3WhereBegin(pParse, pTabList, pWhere, pGroupBy, 0,
-          WHERE_GROUPBY | (orderByGrp ? WHERE_SORTBYGROUP : 0), 0
-      );
-      if( pWInfo==0 ) goto select_end;
-      if( tdsqlite3WhereIsOrdered(pWInfo)==pGroupBy->nExpr ){
-        /* The optimizer is able to deliver rows in group by order so
-        ** we do not have to sort.  The OP_OpenEphemeral table will be
-        ** cancelled later because we still need to use the pKeyInfo
-        */
-        groupBySort = 0;
-      }else{
-        /* Rows are coming out in undetermined order.  We have to push
-        ** each row into a sorting index, terminate the first loop,
-        ** then loop over the sorting index in order to get the output
-        ** in sorted order
-        */
-        int regBase;
-        int regRecord;
-        int nCol;
-        int nGroupBy;
-
-        explainTempTable(pParse, 
-            (sDistinct.isTnct && (p->selFlags&SF_Distinct)==0) ?
-                    "DISTINCT" : "GROUP BY");
-
-        groupBySort = 1;
-        nGroupBy = pGroupBy->nExpr;
-        nCol = nGroupBy;
-        j = nGroupBy;
-        for(i=0; i<sAggInfo.nColumn; i++){
-          if( sAggInfo.aCol[i].iSorterColumn>=j ){
-            nCol++;
-            j++;
-          }
-        }
-        regBase = tdsqlite3GetTempRange(pParse, nCol);
-        tdsqlite3ExprCodeExprList(pParse, pGroupBy, regBase, 0, 0);
-        j = nGroupBy;
-        for(i=0; i<sAggInfo.nColumn; i++){
-          struct AggInfo_col *pCol = &sAggInfo.aCol[i];
-          if( pCol->iSorterColumn>=j ){
-            int r1 = j + regBase;
-            tdsqlite3ExprCodeGetColumnOfTable(v,
-                               pCol->pTab, pCol->iTable, pCol->iColumn, r1);
-            j++;
-          }
-        }
-        regRecord = tdsqlite3GetTempReg(pParse);
-        tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regBase, nCol, regRecord);
-        tdsqlite3VdbeAddOp2(v, OP_SorterInsert, sAggInfo.sortingIdx, regRecord);
-        tdsqlite3ReleaseTempReg(pParse, regRecord);
-        tdsqlite3ReleaseTempRange(pParse, regBase, nCol);
-        tdsqlite3WhereEnd(pWInfo);
-        sAggInfo.sortingIdxPTab = sortPTab = pParse->nTab++;
-        sortOut = tdsqlite3GetTempReg(pParse);
-        tdsqlite3VdbeAddOp3(v, OP_OpenPseudo, sortPTab, sortOut, nCol);
-        tdsqlite3VdbeAddOp2(v, OP_SorterSort, sAggInfo.sortingIdx, addrEnd);
-        VdbeComment((v, "GROUP BY sort")); VdbeCoverage(v);
-        sAggInfo.useSortingIdx = 1;
-      }
-
-      /* If the index or temporary table used by the GROUP BY sort
-      ** will naturally deliver rows in the order required by the ORDER BY
-      ** clause, cancel the ephemeral table open coded earlier.
-      **
-      ** This is an optimization - the correct answer should result regardless.
-      ** Use the SQLITE_GroupByOrder flag with SQLITE_TESTCTRL_OPTIMIZER to 
-      ** disable this optimization for testing purposes.  */
-      if( orderByGrp && OptimizationEnabled(db, SQLITE_GroupByOrder) 
-       && (groupBySort || tdsqlite3WhereIsSorted(pWInfo))
-      ){
-        sSort.pOrderBy = 0;
-        tdsqlite3VdbeChangeToNoop(v, sSort.addrSortIndex);
-      }
-
-      /* Evaluate the current GROUP BY terms and store in b0, b1, b2...
-      ** (b0 is memory location iBMem+0, b1 is iBMem+1, and so forth)
-      ** Then compare the current GROUP BY terms against the GROUP BY terms
-      ** from the previous row currently stored in a0, a1, a2...
-      */
-      addrTopOfLoop = tdsqlite3VdbeCurrentAddr(v);
-      if( groupBySort ){
-        tdsqlite3VdbeAddOp3(v, OP_SorterData, sAggInfo.sortingIdx,
-                          sortOut, sortPTab);
-      }
-      for(j=0; j<pGroupBy->nExpr; j++){
-        if( groupBySort ){
-          tdsqlite3VdbeAddOp3(v, OP_Column, sortPTab, j, iBMem+j);
-        }else{
-          sAggInfo.directMode = 1;
-          tdsqlite3ExprCode(pParse, pGroupBy->a[j].pExpr, iBMem+j);
-        }
-      }
-      tdsqlite3VdbeAddOp4(v, OP_Compare, iAMem, iBMem, pGroupBy->nExpr,
-                          (char*)tdsqlite3KeyInfoRef(pKeyInfo), P4_KEYINFO);
-      addr1 = tdsqlite3VdbeCurrentAddr(v);
-      tdsqlite3VdbeAddOp3(v, OP_Jump, addr1+1, 0, addr1+1); VdbeCoverage(v);
-
-      /* Generate code that runs whenever the GROUP BY changes.
-      ** Changes in the GROUP BY are detected by the previous code
-      ** block.  If there were no changes, this block is skipped.
-      **
-      ** This code copies current group by terms in b0,b1,b2,...
-      ** over to a0,a1,a2.  It then calls the output subroutine
-      ** and resets the aggregate accumulator registers in preparation
-      ** for the next GROUP BY batch.
-      */
-      tdsqlite3ExprCodeMove(pParse, iBMem, iAMem, pGroupBy->nExpr);
-      tdsqlite3VdbeAddOp2(v, OP_Gosub, regOutputRow, addrOutputRow);
-      VdbeComment((v, "output one row"));
-      tdsqlite3VdbeAddOp2(v, OP_IfPos, iAbortFlag, addrEnd); VdbeCoverage(v);
-      VdbeComment((v, "check abort flag"));
-      tdsqlite3VdbeAddOp2(v, OP_Gosub, regReset, addrReset);
-      VdbeComment((v, "reset accumulator"));
-
-      /* Update the aggregate accumulators based on the content of
-      ** the current row
-      */
-      tdsqlite3VdbeJumpHere(v, addr1);
-      updateAccumulator(pParse, iUseFlag, &sAggInfo);
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 1, iUseFlag);
-      VdbeComment((v, "indicate data in accumulator"));
-
-      /* End of the loop
-      */
-      if( groupBySort ){
-        tdsqlite3VdbeAddOp2(v, OP_SorterNext, sAggInfo.sortingIdx, addrTopOfLoop);
-        VdbeCoverage(v);
-      }else{
-        tdsqlite3WhereEnd(pWInfo);
-        tdsqlite3VdbeChangeToNoop(v, addrSortingIdx);
-      }
-
-      /* Output the final row of result
-      */
-      tdsqlite3VdbeAddOp2(v, OP_Gosub, regOutputRow, addrOutputRow);
-      VdbeComment((v, "output final row"));
-
-      /* Jump over the subroutines
-      */
-      tdsqlite3VdbeGoto(v, addrEnd);
-
-      /* Generate a subroutine that outputs a single row of the result
-      ** set.  This subroutine first looks at the iUseFlag.  If iUseFlag
-      ** is less than or equal to zero, the subroutine is a no-op.  If
-      ** the processing calls for the query to abort, this subroutine
-      ** increments the iAbortFlag memory location before returning in
-      ** order to signal the caller to abort.
-      */
-      addrSetAbort = tdsqlite3VdbeCurrentAddr(v);
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 1, iAbortFlag);
-      VdbeComment((v, "set abort flag"));
-      tdsqlite3VdbeAddOp1(v, OP_Return, regOutputRow);
-      tdsqlite3VdbeResolveLabel(v, addrOutputRow);
-      addrOutputRow = tdsqlite3VdbeCurrentAddr(v);
-      tdsqlite3VdbeAddOp2(v, OP_IfPos, iUseFlag, addrOutputRow+2);
-      VdbeCoverage(v);
-      VdbeComment((v, "Groupby result generator entry point"));
-      tdsqlite3VdbeAddOp1(v, OP_Return, regOutputRow);
-      finalizeAggFunctions(pParse, &sAggInfo);
-      tdsqlite3ExprIfFalse(pParse, pHaving, addrOutputRow+1, SQLITE_JUMPIFNULL);
-      selectInnerLoop(pParse, p, -1, &sSort,
-                      &sDistinct, pDest,
-                      addrOutputRow+1, addrSetAbort);
-      tdsqlite3VdbeAddOp1(v, OP_Return, regOutputRow);
-      VdbeComment((v, "end groupby result generator"));
-
-      /* Generate a subroutine that will reset the group-by accumulator
-      */
-      tdsqlite3VdbeResolveLabel(v, addrReset);
-      resetAccumulator(pParse, &sAggInfo);
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, iUseFlag);
-      VdbeComment((v, "indicate accumulator empty"));
-      tdsqlite3VdbeAddOp1(v, OP_Return, regReset);
-     
-    } /* endif pGroupBy.  Begin aggregate queries without GROUP BY: */
-    else {
-#ifndef SQLITE_OMIT_BTREECOUNT
-      Table *pTab;
-      if( (pTab = isSimpleCount(p, &sAggInfo))!=0 ){
-        /* If isSimpleCount() returns a pointer to a Table structure, then
-        ** the SQL statement is of the form:
-        **
-        **   SELECT count(*) FROM <tbl>
-        **
-        ** where the Table structure returned represents table <tbl>.
-        **
-        ** This statement is so common that it is optimized specially. The
-        ** OP_Count instruction is executed either on the intkey table that
-        ** contains the data for table <tbl> or on one of its indexes. It
-        ** is better to execute the op on an index, as indexes are almost
-        ** always spread across less pages than their corresponding tables.
-        */
-        const int iDb = tdsqlite3SchemaToIndex(pParse->db, pTab->pSchema);
-        const int iCsr = pParse->nTab++;     /* Cursor to scan b-tree */
-        Index *pIdx;                         /* Iterator variable */
-        KeyInfo *pKeyInfo = 0;               /* Keyinfo for scanned index */
-        Index *pBest = 0;                    /* Best index found so far */
-        int iRoot = pTab->tnum;              /* Root page of scanned b-tree */
-
-        tdsqlite3CodeVerifySchema(pParse, iDb);
-        tdsqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
-
-        /* Search for the index that has the lowest scan cost.
-        **
-        ** (2011-04-15) Do not do a full scan of an unordered index.
-        **
-        ** (2013-10-03) Do not count the entries in a partial index.
-        **
-        ** In practice the KeyInfo structure will not be used. It is only 
-        ** passed to keep OP_OpenRead happy.
-        */
-        if( !HasRowid(pTab) ) pBest = tdsqlite3PrimaryKeyIndex(pTab);
-        for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-          if( pIdx->bUnordered==0
-           && pIdx->szIdxRow<pTab->szTabRow
-           && pIdx->pPartIdxWhere==0
-           && (!pBest || pIdx->szIdxRow<pBest->szIdxRow)
-          ){
-            pBest = pIdx;
-          }
-        }
-        if( pBest ){
-          iRoot = pBest->tnum;
-          pKeyInfo = tdsqlite3KeyInfoOfIndex(pParse, pBest);
-        }
-
-        /* Open a read-only cursor, execute the OP_Count, close the cursor. */
-        tdsqlite3VdbeAddOp4Int(v, OP_OpenRead, iCsr, iRoot, iDb, 1);
-        if( pKeyInfo ){
-          tdsqlite3VdbeChangeP4(v, -1, (char *)pKeyInfo, P4_KEYINFO);
-        }
-        tdsqlite3VdbeAddOp2(v, OP_Count, iCsr, sAggInfo.aFunc[0].iMem);
-        tdsqlite3VdbeAddOp1(v, OP_Close, iCsr);
-        explainSimpleCount(pParse, pTab, pBest);
-      }else
-#endif /* SQLITE_OMIT_BTREECOUNT */
-      {
-        int regAcc = 0;           /* "populate accumulators" flag */
-
-        /* If there are accumulator registers but no min() or max() functions
-        ** without FILTER clauses, allocate register regAcc. Register regAcc
-        ** will contain 0 the first time the inner loop runs, and 1 thereafter.
-        ** The code generated by updateAccumulator() uses this to ensure
-        ** that the accumulator registers are (a) updated only once if
-        ** there are no min() or max functions or (b) always updated for the
-        ** first row visited by the aggregate, so that they are updated at
-        ** least once even if the FILTER clause means the min() or max() 
-        ** function visits zero rows.  */
-        if( sAggInfo.nAccumulator ){
-          for(i=0; i<sAggInfo.nFunc; i++){
-            if( ExprHasProperty(sAggInfo.aFunc[i].pExpr, EP_WinFunc) ) continue;
-            if( sAggInfo.aFunc[i].pFunc->funcFlags&SQLITE_FUNC_NEEDCOLL ) break;
-          }
-          if( i==sAggInfo.nFunc ){
-            regAcc = ++pParse->nMem;
-            tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regAcc);
-          }
-        }
-
-        /* This case runs if the aggregate has no GROUP BY clause.  The
-        ** processing is much simpler since there is only a single row
-        ** of output.
-        */
-        assert( p->pGroupBy==0 );
-        resetAccumulator(pParse, &sAggInfo);
-
-        /* If this query is a candidate for the min/max optimization, then
-        ** minMaxFlag will have been previously set to either
-        ** WHERE_ORDERBY_MIN or WHERE_ORDERBY_MAX and pMinMaxOrderBy will
-        ** be an appropriate ORDER BY expression for the optimization.
-        */
-        assert( minMaxFlag==WHERE_ORDERBY_NORMAL || pMinMaxOrderBy!=0 );
-        assert( pMinMaxOrderBy==0 || pMinMaxOrderBy->nExpr==1 );
-
-        SELECTTRACE(1,pParse,p,("WhereBegin\n"));
-        pWInfo = tdsqlite3WhereBegin(pParse, pTabList, pWhere, pMinMaxOrderBy,
-                                   0, minMaxFlag, 0);
-        if( pWInfo==0 ){
-          goto select_end;
-        }
-        updateAccumulator(pParse, regAcc, &sAggInfo);
-        if( regAcc ) tdsqlite3VdbeAddOp2(v, OP_Integer, 1, regAcc);
-        if( tdsqlite3WhereIsOrdered(pWInfo)>0 ){
-          tdsqlite3VdbeGoto(v, tdsqlite3WhereBreakLabel(pWInfo));
-          VdbeComment((v, "%s() by index",
-                (minMaxFlag==WHERE_ORDERBY_MIN?"min":"max")));
-        }
-        tdsqlite3WhereEnd(pWInfo);
-        finalizeAggFunctions(pParse, &sAggInfo);
-      }
-
-      sSort.pOrderBy = 0;
-      tdsqlite3ExprIfFalse(pParse, pHaving, addrEnd, SQLITE_JUMPIFNULL);
-      selectInnerLoop(pParse, p, -1, 0, 0, 
-                      pDest, addrEnd, addrEnd);
-    }
-    tdsqlite3VdbeResolveLabel(v, addrEnd);
-    
-  } /* endif aggregate query */
-
-  if( sDistinct.eTnctType==WHERE_DISTINCT_UNORDERED ){
-    explainTempTable(pParse, "DISTINCT");
-  }
-
-  /* If there is an ORDER BY clause, then we need to sort the results
-  ** and send them to the callback one by one.
-  */
-  if( sSort.pOrderBy ){
-    explainTempTable(pParse,
-                     sSort.nOBSat>0 ? "RIGHT PART OF ORDER BY":"ORDER BY");
-    assert( p->pEList==pEList );
-    generateSortTail(pParse, p, &sSort, pEList->nExpr, pDest);
-  }
-
-  /* Jump here to skip this query
-  */
-  tdsqlite3VdbeResolveLabel(v, iEnd);
-
-  /* The SELECT has been coded. If there is an error in the Parse structure,
-  ** set the return code to 1. Otherwise 0. */
-  rc = (pParse->nErr>0);
-
-  /* Control jumps to here if an error is encountered above, or upon
-  ** successful coding of the SELECT.
-  */
-select_end:
-  tdsqlite3ExprListDelete(db, pMinMaxOrderBy);
-  tdsqlite3DbFree(db, sAggInfo.aCol);
-  tdsqlite3DbFree(db, sAggInfo.aFunc);
-#if SELECTTRACE_ENABLED
-  SELECTTRACE(0x1,pParse,p,("end processing\n"));
-  if( (tdsqlite3SelectTrace & 0x2000)!=0 && ExplainQueryPlanParent(pParse)==0 ){
-    tdsqlite3TreeViewSelect(0, p, 0);
-  }
-#endif
-  ExplainQueryPlanPop(pParse);
-  return rc;
-}
-
-/************** End of select.c **********************************************/
-/************** Begin file table.c *******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the tdsqlite3_get_table() and tdsqlite3_free_table()
-** interface routines.  These are just wrappers around the main
-** interface routine of tdsqlite3_exec().
-**
-** These routines are in a separate files so that they will not be linked
-** if they are not used.
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_GET_TABLE
-
-/*
-** This structure is used to pass data from tdsqlite3_get_table() through
-** to the callback function is uses to build the result.
-*/
-typedef struct TabResult {
-  char **azResult;   /* Accumulated output */
-  char *zErrMsg;     /* Error message text, if an error occurs */
-  u32 nAlloc;        /* Slots allocated for azResult[] */
-  u32 nRow;          /* Number of rows in the result */
-  u32 nColumn;       /* Number of columns in the result */
-  u32 nData;         /* Slots used in azResult[].  (nRow+1)*nColumn */
-  int rc;            /* Return code from tdsqlite3_exec() */
-} TabResult;
-
-/*
-** This routine is called once for each row in the result table.  Its job
-** is to fill in the TabResult structure appropriately, allocating new
-** memory as necessary.
-*/
-static int tdsqlite3_get_table_cb(void *pArg, int nCol, char **argv, char **colv){
-  TabResult *p = (TabResult*)pArg;  /* Result accumulator */
-  int need;                         /* Slots needed in p->azResult[] */
-  int i;                            /* Loop counter */
-  char *z;                          /* A single column of result */
-
-  /* Make sure there is enough space in p->azResult to hold everything
-  ** we need to remember from this invocation of the callback.
-  */
-  if( p->nRow==0 && argv!=0 ){
-    need = nCol*2;
-  }else{
-    need = nCol;
-  }
-  if( p->nData + need > p->nAlloc ){
-    char **azNew;
-    p->nAlloc = p->nAlloc*2 + need;
-    azNew = tdsqlite3_realloc64( p->azResult, sizeof(char*)*p->nAlloc );
-    if( azNew==0 ) goto malloc_failed;
-    p->azResult = azNew;
-  }
-
-  /* If this is the first row, then generate an extra row containing
-  ** the names of all columns.
-  */
-  if( p->nRow==0 ){
-    p->nColumn = nCol;
-    for(i=0; i<nCol; i++){
-      z = tdsqlite3_mprintf("%s", colv[i]);
-      if( z==0 ) goto malloc_failed;
-      p->azResult[p->nData++] = z;
-    }
-  }else if( (int)p->nColumn!=nCol ){
-    tdsqlite3_free(p->zErrMsg);
-    p->zErrMsg = tdsqlite3_mprintf(
-       "tdsqlite3_get_table() called with two or more incompatible queries"
-    );
-    p->rc = SQLITE_ERROR;
-    return 1;
-  }
-
-  /* Copy over the row data
-  */
-  if( argv!=0 ){
-    for(i=0; i<nCol; i++){
-      if( argv[i]==0 ){
-        z = 0;
-      }else{
-        int n = tdsqlite3Strlen30(argv[i])+1;
-        z = tdsqlite3_malloc64( n );
-        if( z==0 ) goto malloc_failed;
-        memcpy(z, argv[i], n);
-      }
-      p->azResult[p->nData++] = z;
-    }
-    p->nRow++;
-  }
-  return 0;
-
-malloc_failed:
-  p->rc = SQLITE_NOMEM_BKPT;
-  return 1;
-}
-
-/*
-** Query the database.  But instead of invoking a callback for each row,
-** malloc() for space to hold the result and return the entire results
-** at the conclusion of the call.
-**
-** The result that is written to ***pazResult is held in memory obtained
-** from malloc().  But the caller cannot free this memory directly.  
-** Instead, the entire table should be passed to tdsqlite3_free_table() when
-** the calling procedure is finished using it.
-*/
-SQLITE_API int tdsqlite3_get_table(
-  tdsqlite3 *db,                /* The database on which the SQL executes */
-  const char *zSql,           /* The SQL to be executed */
-  char ***pazResult,          /* Write the result table here */
-  int *pnRow,                 /* Write the number of rows in the result here */
-  int *pnColumn,              /* Write the number of columns of result here */
-  char **pzErrMsg             /* Write error messages here */
-){
-  int rc;
-  TabResult res;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || pazResult==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  *pazResult = 0;
-  if( pnColumn ) *pnColumn = 0;
-  if( pnRow ) *pnRow = 0;
-  if( pzErrMsg ) *pzErrMsg = 0;
-  res.zErrMsg = 0;
-  res.nRow = 0;
-  res.nColumn = 0;
-  res.nData = 1;
-  res.nAlloc = 20;
-  res.rc = SQLITE_OK;
-  res.azResult = tdsqlite3_malloc64(sizeof(char*)*res.nAlloc );
-  if( res.azResult==0 ){
-     db->errCode = SQLITE_NOMEM;
-     return SQLITE_NOMEM_BKPT;
-  }
-  res.azResult[0] = 0;
-  rc = tdsqlite3_exec(db, zSql, tdsqlite3_get_table_cb, &res, pzErrMsg);
-  assert( sizeof(res.azResult[0])>= sizeof(res.nData) );
-  res.azResult[0] = SQLITE_INT_TO_PTR(res.nData);
-  if( (rc&0xff)==SQLITE_ABORT ){
-    tdsqlite3_free_table(&res.azResult[1]);
-    if( res.zErrMsg ){
-      if( pzErrMsg ){
-        tdsqlite3_free(*pzErrMsg);
-        *pzErrMsg = tdsqlite3_mprintf("%s",res.zErrMsg);
-      }
-      tdsqlite3_free(res.zErrMsg);
-    }
-    db->errCode = res.rc;  /* Assume 32-bit assignment is atomic */
-    return res.rc;
-  }
-  tdsqlite3_free(res.zErrMsg);
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_free_table(&res.azResult[1]);
-    return rc;
-  }
-  if( res.nAlloc>res.nData ){
-    char **azNew;
-    azNew = tdsqlite3_realloc64( res.azResult, sizeof(char*)*res.nData );
-    if( azNew==0 ){
-      tdsqlite3_free_table(&res.azResult[1]);
-      db->errCode = SQLITE_NOMEM;
-      return SQLITE_NOMEM_BKPT;
-    }
-    res.azResult = azNew;
-  }
-  *pazResult = &res.azResult[1];
-  if( pnColumn ) *pnColumn = res.nColumn;
-  if( pnRow ) *pnRow = res.nRow;
-  return rc;
-}
-
-/*
-** This routine frees the space the tdsqlite3_get_table() malloced.
-*/
-SQLITE_API void tdsqlite3_free_table(
-  char **azResult            /* Result returned from tdsqlite3_get_table() */
-){
-  if( azResult ){
-    int i, n;
-    azResult--;
-    assert( azResult!=0 );
-    n = SQLITE_PTR_TO_INT(azResult[0]);
-    for(i=1; i<n; i++){ if( azResult[i] ) tdsqlite3_free(azResult[i]); }
-    tdsqlite3_free(azResult);
-  }
-}
-
-#endif /* SQLITE_OMIT_GET_TABLE */
-
-/************** End of table.c ***********************************************/
-/************** Begin file trigger.c *****************************************/
-/*
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains the implementation for TRIGGERs
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_TRIGGER
-/*
-** Delete a linked list of TriggerStep structures.
-*/
-SQLITE_PRIVATE void tdsqlite3DeleteTriggerStep(tdsqlite3 *db, TriggerStep *pTriggerStep){
-  while( pTriggerStep ){
-    TriggerStep * pTmp = pTriggerStep;
-    pTriggerStep = pTriggerStep->pNext;
-
-    tdsqlite3ExprDelete(db, pTmp->pWhere);
-    tdsqlite3ExprListDelete(db, pTmp->pExprList);
-    tdsqlite3SelectDelete(db, pTmp->pSelect);
-    tdsqlite3IdListDelete(db, pTmp->pIdList);
-    tdsqlite3UpsertDelete(db, pTmp->pUpsert);
-    tdsqlite3DbFree(db, pTmp->zSpan);
-
-    tdsqlite3DbFree(db, pTmp);
-  }
-}
-
-/*
-** Given table pTab, return a list of all the triggers attached to 
-** the table. The list is connected by Trigger.pNext pointers.
-**
-** All of the triggers on pTab that are in the same database as pTab
-** are already attached to pTab->pTrigger.  But there might be additional
-** triggers on pTab in the TEMP schema.  This routine prepends all
-** TEMP triggers on pTab to the beginning of the pTab->pTrigger list
-** and returns the combined list.
-**
-** To state it another way:  This routine returns a list of all triggers
-** that fire off of pTab.  The list will include any TEMP triggers on
-** pTab as well as the triggers lised in pTab->pTrigger.
-*/
-SQLITE_PRIVATE Trigger *tdsqlite3TriggerList(Parse *pParse, Table *pTab){
-  Schema * const pTmpSchema = pParse->db->aDb[1].pSchema;
-  Trigger *pList = 0;                  /* List of triggers to return */
-
-  if( pParse->disableTriggers ){
-    return 0;
-  }
-
-  if( pTmpSchema!=pTab->pSchema ){
-    HashElem *p;
-    assert( tdsqlite3SchemaMutexHeld(pParse->db, 0, pTmpSchema) );
-    for(p=sqliteHashFirst(&pTmpSchema->trigHash); p; p=sqliteHashNext(p)){
-      Trigger *pTrig = (Trigger *)sqliteHashData(p);
-      if( pTrig->pTabSchema==pTab->pSchema
-       && 0==tdsqlite3StrICmp(pTrig->table, pTab->zName) 
-      ){
-        pTrig->pNext = (pList ? pList : pTab->pTrigger);
-        pList = pTrig;
-      }
-    }
-  }
-
-  return (pList ? pList : pTab->pTrigger);
-}
-
-/*
-** This is called by the parser when it sees a CREATE TRIGGER statement
-** up to the point of the BEGIN before the trigger actions.  A Trigger
-** structure is generated based on the information available and stored
-** in pParse->pNewTrigger.  After the trigger actions have been parsed, the
-** tdsqlite3FinishTrigger() function is called to complete the trigger
-** construction process.
-*/
-SQLITE_PRIVATE void tdsqlite3BeginTrigger(
-  Parse *pParse,      /* The parse context of the CREATE TRIGGER statement */
-  Token *pName1,      /* The name of the trigger */
-  Token *pName2,      /* The name of the trigger */
-  int tr_tm,          /* One of TK_BEFORE, TK_AFTER, TK_INSTEAD */
-  int op,             /* One of TK_INSERT, TK_UPDATE, TK_DELETE */
-  IdList *pColumns,   /* column list if this is an UPDATE OF trigger */
-  SrcList *pTableName,/* The name of the table/view the trigger applies to */
-  Expr *pWhen,        /* WHEN clause */
-  int isTemp,         /* True if the TEMPORARY keyword is present */
-  int noErr           /* Suppress errors if the trigger already exists */
-){
-  Trigger *pTrigger = 0;  /* The new trigger */
-  Table *pTab;            /* Table that the trigger fires off of */
-  char *zName = 0;        /* Name of the trigger */
-  tdsqlite3 *db = pParse->db;  /* The database connection */
-  int iDb;                /* The database to store the trigger in */
-  Token *pName;           /* The unqualified db name */
-  DbFixer sFix;           /* State vector for the DB fixer */
-
-  assert( pName1!=0 );   /* pName1->z might be NULL, but not pName1 itself */
-  assert( pName2!=0 );
-  assert( op==TK_INSERT || op==TK_UPDATE || op==TK_DELETE );
-  assert( op>0 && op<0xff );
-  if( isTemp ){
-    /* If TEMP was specified, then the trigger name may not be qualified. */
-    if( pName2->n>0 ){
-      tdsqlite3ErrorMsg(pParse, "temporary trigger may not have qualified name");
-      goto trigger_cleanup;
-    }
-    iDb = 1;
-    pName = pName1;
-  }else{
-    /* Figure out the db that the trigger will be created in */
-    iDb = tdsqlite3TwoPartName(pParse, pName1, pName2, &pName);
-    if( iDb<0 ){
-      goto trigger_cleanup;
-    }
-  }
-  if( !pTableName || db->mallocFailed ){
-    goto trigger_cleanup;
-  }
-
-  /* A long-standing parser bug is that this syntax was allowed:
-  **
-  **    CREATE TRIGGER attached.demo AFTER INSERT ON attached.tab ....
-  **                                                 ^^^^^^^^
-  **
-  ** To maintain backwards compatibility, ignore the database
-  ** name on pTableName if we are reparsing out of SQLITE_MASTER.
-  */
-  if( db->init.busy && iDb!=1 ){
-    tdsqlite3DbFree(db, pTableName->a[0].zDatabase);
-    pTableName->a[0].zDatabase = 0;
-  }
-
-  /* If the trigger name was unqualified, and the table is a temp table,
-  ** then set iDb to 1 to create the trigger in the temporary database.
-  ** If tdsqlite3SrcListLookup() returns 0, indicating the table does not
-  ** exist, the error is caught by the block below.
-  */
-  pTab = tdsqlite3SrcListLookup(pParse, pTableName);
-  if( db->init.busy==0 && pName2->n==0 && pTab
-        && pTab->pSchema==db->aDb[1].pSchema ){
-    iDb = 1;
-  }
-
-  /* Ensure the table name matches database name and that the table exists */
-  if( db->mallocFailed ) goto trigger_cleanup;
-  assert( pTableName->nSrc==1 );
-  tdsqlite3FixInit(&sFix, pParse, iDb, "trigger", pName);
-  if( tdsqlite3FixSrcList(&sFix, pTableName) ){
-    goto trigger_cleanup;
-  }
-  pTab = tdsqlite3SrcListLookup(pParse, pTableName);
-  if( !pTab ){
-    /* The table does not exist. */
-    if( db->init.iDb==1 ){
-      /* Ticket #3810.
-      ** Normally, whenever a table is dropped, all associated triggers are
-      ** dropped too.  But if a TEMP trigger is created on a non-TEMP table
-      ** and the table is dropped by a different database connection, the
-      ** trigger is not visible to the database connection that does the
-      ** drop so the trigger cannot be dropped.  This results in an
-      ** "orphaned trigger" - a trigger whose associated table is missing.
-      */
-      db->init.orphanTrigger = 1;
-    }
-    goto trigger_cleanup;
-  }
-  if( IsVirtual(pTab) ){
-    tdsqlite3ErrorMsg(pParse, "cannot create triggers on virtual tables");
-    goto trigger_cleanup;
-  }
-
-  /* Check that the trigger name is not reserved and that no trigger of the
-  ** specified name exists */
-  zName = tdsqlite3NameFromToken(db, pName);
-  if( zName==0 ){
-    assert( db->mallocFailed );
-    goto trigger_cleanup;
-  }
-  if( tdsqlite3CheckObjectName(pParse, zName, "trigger", pTab->zName) ){
-    goto trigger_cleanup;
-  }
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  if( !IN_RENAME_OBJECT ){
-    if( tdsqlite3HashFind(&(db->aDb[iDb].pSchema->trigHash),zName) ){
-      if( !noErr ){
-        tdsqlite3ErrorMsg(pParse, "trigger %T already exists", pName);
-      }else{
-        assert( !db->init.busy );
-        tdsqlite3CodeVerifySchema(pParse, iDb);
-      }
-      goto trigger_cleanup;
-    }
-  }
-
-  /* Do not create a trigger on a system table */
-  if( tdsqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 ){
-    tdsqlite3ErrorMsg(pParse, "cannot create trigger on system table");
-    goto trigger_cleanup;
-  }
-
-  /* INSTEAD of triggers are only for views and views only support INSTEAD
-  ** of triggers.
-  */
-  if( pTab->pSelect && tr_tm!=TK_INSTEAD ){
-    tdsqlite3ErrorMsg(pParse, "cannot create %s trigger on view: %S", 
-        (tr_tm == TK_BEFORE)?"BEFORE":"AFTER", pTableName, 0);
-    goto trigger_cleanup;
-  }
-  if( !pTab->pSelect && tr_tm==TK_INSTEAD ){
-    tdsqlite3ErrorMsg(pParse, "cannot create INSTEAD OF"
-        " trigger on table: %S", pTableName, 0);
-    goto trigger_cleanup;
-  }
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  if( !IN_RENAME_OBJECT ){
-    int iTabDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-    int code = SQLITE_CREATE_TRIGGER;
-    const char *zDb = db->aDb[iTabDb].zDbSName;
-    const char *zDbTrig = isTemp ? db->aDb[1].zDbSName : zDb;
-    if( iTabDb==1 || isTemp ) code = SQLITE_CREATE_TEMP_TRIGGER;
-    if( tdsqlite3AuthCheck(pParse, code, zName, pTab->zName, zDbTrig) ){
-      goto trigger_cleanup;
-    }
-    if( tdsqlite3AuthCheck(pParse, SQLITE_INSERT, SCHEMA_TABLE(iTabDb),0,zDb)){
-      goto trigger_cleanup;
-    }
-  }
-#endif
-
-  /* INSTEAD OF triggers can only appear on views and BEFORE triggers
-  ** cannot appear on views.  So we might as well translate every
-  ** INSTEAD OF trigger into a BEFORE trigger.  It simplifies code
-  ** elsewhere.
-  */
-  if (tr_tm == TK_INSTEAD){
-    tr_tm = TK_BEFORE;
-  }
-
-  /* Build the Trigger object */
-  pTrigger = (Trigger*)tdsqlite3DbMallocZero(db, sizeof(Trigger));
-  if( pTrigger==0 ) goto trigger_cleanup;
-  pTrigger->zName = zName;
-  zName = 0;
-  pTrigger->table = tdsqlite3DbStrDup(db, pTableName->a[0].zName);
-  pTrigger->pSchema = db->aDb[iDb].pSchema;
-  pTrigger->pTabSchema = pTab->pSchema;
-  pTrigger->op = (u8)op;
-  pTrigger->tr_tm = tr_tm==TK_BEFORE ? TRIGGER_BEFORE : TRIGGER_AFTER;
-  if( IN_RENAME_OBJECT ){
-    tdsqlite3RenameTokenRemap(pParse, pTrigger->table, pTableName->a[0].zName);
-    pTrigger->pWhen = pWhen;
-    pWhen = 0;
-  }else{
-    pTrigger->pWhen = tdsqlite3ExprDup(db, pWhen, EXPRDUP_REDUCE);
-  }
-  pTrigger->pColumns = pColumns;
-  pColumns = 0;
-  assert( pParse->pNewTrigger==0 );
-  pParse->pNewTrigger = pTrigger;
-
-trigger_cleanup:
-  tdsqlite3DbFree(db, zName);
-  tdsqlite3SrcListDelete(db, pTableName);
-  tdsqlite3IdListDelete(db, pColumns);
-  tdsqlite3ExprDelete(db, pWhen);
-  if( !pParse->pNewTrigger ){
-    tdsqlite3DeleteTrigger(db, pTrigger);
-  }else{
-    assert( pParse->pNewTrigger==pTrigger );
-  }
-}
-
-/*
-** This routine is called after all of the trigger actions have been parsed
-** in order to complete the process of building the trigger.
-*/
-SQLITE_PRIVATE void tdsqlite3FinishTrigger(
-  Parse *pParse,          /* Parser context */
-  TriggerStep *pStepList, /* The triggered program */
-  Token *pAll             /* Token that describes the complete CREATE TRIGGER */
-){
-  Trigger *pTrig = pParse->pNewTrigger;   /* Trigger being finished */
-  char *zName;                            /* Name of trigger */
-  tdsqlite3 *db = pParse->db;               /* The database */
-  DbFixer sFix;                           /* Fixer object */
-  int iDb;                                /* Database containing the trigger */
-  Token nameToken;                        /* Trigger name for error reporting */
-
-  pParse->pNewTrigger = 0;
-  if( NEVER(pParse->nErr) || !pTrig ) goto triggerfinish_cleanup;
-  zName = pTrig->zName;
-  iDb = tdsqlite3SchemaToIndex(pParse->db, pTrig->pSchema);
-  pTrig->step_list = pStepList;
-  while( pStepList ){
-    pStepList->pTrig = pTrig;
-    pStepList = pStepList->pNext;
-  }
-  tdsqlite3TokenInit(&nameToken, pTrig->zName);
-  tdsqlite3FixInit(&sFix, pParse, iDb, "trigger", &nameToken);
-  if( tdsqlite3FixTriggerStep(&sFix, pTrig->step_list) 
-   || tdsqlite3FixExpr(&sFix, pTrig->pWhen) 
-  ){
-    goto triggerfinish_cleanup;
-  }
-
-#ifndef SQLITE_OMIT_ALTERTABLE
-  if( IN_RENAME_OBJECT ){
-    assert( !db->init.busy );
-    pParse->pNewTrigger = pTrig;
-    pTrig = 0;
-  }else
-#endif
-
-  /* if we are not initializing,
-  ** build the sqlite_master entry
-  */
-  if( !db->init.busy ){
-    Vdbe *v;
-    char *z;
-
-    /* Make an entry in the sqlite_master table */
-    v = tdsqlite3GetVdbe(pParse);
-    if( v==0 ) goto triggerfinish_cleanup;
-    tdsqlite3BeginWriteOperation(pParse, 0, iDb);
-    z = tdsqlite3DbStrNDup(db, (char*)pAll->z, pAll->n);
-    testcase( z==0 );
-    tdsqlite3NestedParse(pParse,
-       "INSERT INTO %Q.%s VALUES('trigger',%Q,%Q,0,'CREATE TRIGGER %q')",
-       db->aDb[iDb].zDbSName, MASTER_NAME, zName,
-       pTrig->table, z);
-    tdsqlite3DbFree(db, z);
-    tdsqlite3ChangeCookie(pParse, iDb);
-    tdsqlite3VdbeAddParseSchemaOp(v, iDb,
-        tdsqlite3MPrintf(db, "type='trigger' AND name='%q'", zName));
-  }
-
-  if( db->init.busy ){
-    Trigger *pLink = pTrig;
-    Hash *pHash = &db->aDb[iDb].pSchema->trigHash;
-    assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-    assert( pLink!=0 );
-    pTrig = tdsqlite3HashInsert(pHash, zName, pTrig);
-    if( pTrig ){
-      tdsqlite3OomFault(db);
-    }else if( pLink->pSchema==pLink->pTabSchema ){
-      Table *pTab;
-      pTab = tdsqlite3HashFind(&pLink->pTabSchema->tblHash, pLink->table);
-      assert( pTab!=0 );
-      pLink->pNext = pTab->pTrigger;
-      pTab->pTrigger = pLink;
-    }
-  }
-
-triggerfinish_cleanup:
-  tdsqlite3DeleteTrigger(db, pTrig);
-  assert( IN_RENAME_OBJECT || !pParse->pNewTrigger );
-  tdsqlite3DeleteTriggerStep(db, pStepList);
-}
-
-/*
-** Duplicate a range of text from an SQL statement, then convert all
-** whitespace characters into ordinary space characters.
-*/
-static char *triggerSpanDup(tdsqlite3 *db, const char *zStart, const char *zEnd){
-  char *z = tdsqlite3DbSpanDup(db, zStart, zEnd);
-  int i;
-  if( z ) for(i=0; z[i]; i++) if( tdsqlite3Isspace(z[i]) ) z[i] = ' ';
-  return z;
-}    
-
-/*
-** Turn a SELECT statement (that the pSelect parameter points to) into
-** a trigger step.  Return a pointer to a TriggerStep structure.
-**
-** The parser calls this routine when it finds a SELECT statement in
-** body of a TRIGGER.  
-*/
-SQLITE_PRIVATE TriggerStep *tdsqlite3TriggerSelectStep(
-  tdsqlite3 *db,                /* Database connection */
-  Select *pSelect,            /* The SELECT statement */
-  const char *zStart,         /* Start of SQL text */
-  const char *zEnd            /* End of SQL text */
-){
-  TriggerStep *pTriggerStep = tdsqlite3DbMallocZero(db, sizeof(TriggerStep));
-  if( pTriggerStep==0 ) {
-    tdsqlite3SelectDelete(db, pSelect);
-    return 0;
-  }
-  pTriggerStep->op = TK_SELECT;
-  pTriggerStep->pSelect = pSelect;
-  pTriggerStep->orconf = OE_Default;
-  pTriggerStep->zSpan = triggerSpanDup(db, zStart, zEnd);
-  return pTriggerStep;
-}
-
-/*
-** Allocate space to hold a new trigger step.  The allocated space
-** holds both the TriggerStep object and the TriggerStep.target.z string.
-**
-** If an OOM error occurs, NULL is returned and db->mallocFailed is set.
-*/
-static TriggerStep *triggerStepAllocate(
-  Parse *pParse,              /* Parser context */
-  u8 op,                      /* Trigger opcode */
-  Token *pName,               /* The target name */
-  const char *zStart,         /* Start of SQL text */
-  const char *zEnd            /* End of SQL text */
-){
-  tdsqlite3 *db = pParse->db;
-  TriggerStep *pTriggerStep;
-
-  pTriggerStep = tdsqlite3DbMallocZero(db, sizeof(TriggerStep) + pName->n + 1);
-  if( pTriggerStep ){
-    char *z = (char*)&pTriggerStep[1];
-    memcpy(z, pName->z, pName->n);
-    tdsqlite3Dequote(z);
-    pTriggerStep->zTarget = z;
-    pTriggerStep->op = op;
-    pTriggerStep->zSpan = triggerSpanDup(db, zStart, zEnd);
-    if( IN_RENAME_OBJECT ){
-      tdsqlite3RenameTokenMap(pParse, pTriggerStep->zTarget, pName);
-    }
-  }
-  return pTriggerStep;
-}
-
-/*
-** Build a trigger step out of an INSERT statement.  Return a pointer
-** to the new trigger step.
-**
-** The parser calls this routine when it sees an INSERT inside the
-** body of a trigger.
-*/
-SQLITE_PRIVATE TriggerStep *tdsqlite3TriggerInsertStep(
-  Parse *pParse,      /* Parser */
-  Token *pTableName,  /* Name of the table into which we insert */
-  IdList *pColumn,    /* List of columns in pTableName to insert into */
-  Select *pSelect,    /* A SELECT statement that supplies values */
-  u8 orconf,          /* The conflict algorithm (OE_Abort, OE_Replace, etc.) */
-  Upsert *pUpsert,    /* ON CONFLICT clauses for upsert */
-  const char *zStart, /* Start of SQL text */
-  const char *zEnd    /* End of SQL text */
-){
-  tdsqlite3 *db = pParse->db;
-  TriggerStep *pTriggerStep;
-
-  assert(pSelect != 0 || db->mallocFailed);
-
-  pTriggerStep = triggerStepAllocate(pParse, TK_INSERT, pTableName,zStart,zEnd);
-  if( pTriggerStep ){
-    if( IN_RENAME_OBJECT ){
-      pTriggerStep->pSelect = pSelect;
-      pSelect = 0;
-    }else{
-      pTriggerStep->pSelect = tdsqlite3SelectDup(db, pSelect, EXPRDUP_REDUCE);
-    }
-    pTriggerStep->pIdList = pColumn;
-    pTriggerStep->pUpsert = pUpsert;
-    pTriggerStep->orconf = orconf;
-    if( pUpsert ){
-      tdsqlite3HasExplicitNulls(pParse, pUpsert->pUpsertTarget);
-    }
-  }else{
-    testcase( pColumn );
-    tdsqlite3IdListDelete(db, pColumn);
-    testcase( pUpsert );
-    tdsqlite3UpsertDelete(db, pUpsert);
-  }
-  tdsqlite3SelectDelete(db, pSelect);
-
-  return pTriggerStep;
-}
-
-/*
-** Construct a trigger step that implements an UPDATE statement and return
-** a pointer to that trigger step.  The parser calls this routine when it
-** sees an UPDATE statement inside the body of a CREATE TRIGGER.
-*/
-SQLITE_PRIVATE TriggerStep *tdsqlite3TriggerUpdateStep(
-  Parse *pParse,          /* Parser */
-  Token *pTableName,   /* Name of the table to be updated */
-  ExprList *pEList,    /* The SET clause: list of column and new values */
-  Expr *pWhere,        /* The WHERE clause */
-  u8 orconf,           /* The conflict algorithm. (OE_Abort, OE_Ignore, etc) */
-  const char *zStart,  /* Start of SQL text */
-  const char *zEnd     /* End of SQL text */
-){
-  tdsqlite3 *db = pParse->db;
-  TriggerStep *pTriggerStep;
-
-  pTriggerStep = triggerStepAllocate(pParse, TK_UPDATE, pTableName,zStart,zEnd);
-  if( pTriggerStep ){
-    if( IN_RENAME_OBJECT ){
-      pTriggerStep->pExprList = pEList;
-      pTriggerStep->pWhere = pWhere;
-      pEList = 0;
-      pWhere = 0;
-    }else{
-      pTriggerStep->pExprList = tdsqlite3ExprListDup(db, pEList, EXPRDUP_REDUCE);
-      pTriggerStep->pWhere = tdsqlite3ExprDup(db, pWhere, EXPRDUP_REDUCE);
-    }
-    pTriggerStep->orconf = orconf;
-  }
-  tdsqlite3ExprListDelete(db, pEList);
-  tdsqlite3ExprDelete(db, pWhere);
-  return pTriggerStep;
-}
-
-/*
-** Construct a trigger step that implements a DELETE statement and return
-** a pointer to that trigger step.  The parser calls this routine when it
-** sees a DELETE statement inside the body of a CREATE TRIGGER.
-*/
-SQLITE_PRIVATE TriggerStep *tdsqlite3TriggerDeleteStep(
-  Parse *pParse,          /* Parser */
-  Token *pTableName,      /* The table from which rows are deleted */
-  Expr *pWhere,           /* The WHERE clause */
-  const char *zStart,     /* Start of SQL text */
-  const char *zEnd        /* End of SQL text */
-){
-  tdsqlite3 *db = pParse->db;
-  TriggerStep *pTriggerStep;
-
-  pTriggerStep = triggerStepAllocate(pParse, TK_DELETE, pTableName,zStart,zEnd);
-  if( pTriggerStep ){
-    if( IN_RENAME_OBJECT ){
-      pTriggerStep->pWhere = pWhere;
-      pWhere = 0;
-    }else{
-      pTriggerStep->pWhere = tdsqlite3ExprDup(db, pWhere, EXPRDUP_REDUCE);
-    }
-    pTriggerStep->orconf = OE_Default;
-  }
-  tdsqlite3ExprDelete(db, pWhere);
-  return pTriggerStep;
-}
-
-/* 
-** Recursively delete a Trigger structure
-*/
-SQLITE_PRIVATE void tdsqlite3DeleteTrigger(tdsqlite3 *db, Trigger *pTrigger){
-  if( pTrigger==0 ) return;
-  tdsqlite3DeleteTriggerStep(db, pTrigger->step_list);
-  tdsqlite3DbFree(db, pTrigger->zName);
-  tdsqlite3DbFree(db, pTrigger->table);
-  tdsqlite3ExprDelete(db, pTrigger->pWhen);
-  tdsqlite3IdListDelete(db, pTrigger->pColumns);
-  tdsqlite3DbFree(db, pTrigger);
-}
-
-/*
-** This function is called to drop a trigger from the database schema. 
-**
-** This may be called directly from the parser and therefore identifies
-** the trigger by name.  The tdsqlite3DropTriggerPtr() routine does the
-** same job as this routine except it takes a pointer to the trigger
-** instead of the trigger name.
-**/
-SQLITE_PRIVATE void tdsqlite3DropTrigger(Parse *pParse, SrcList *pName, int noErr){
-  Trigger *pTrigger = 0;
-  int i;
-  const char *zDb;
-  const char *zName;
-  tdsqlite3 *db = pParse->db;
-
-  if( db->mallocFailed ) goto drop_trigger_cleanup;
-  if( SQLITE_OK!=tdsqlite3ReadSchema(pParse) ){
-    goto drop_trigger_cleanup;
-  }
-
-  assert( pName->nSrc==1 );
-  zDb = pName->a[0].zDatabase;
-  zName = pName->a[0].zName;
-  assert( zDb!=0 || tdsqlite3BtreeHoldsAllMutexes(db) );
-  for(i=OMIT_TEMPDB; i<db->nDb; i++){
-    int j = (i<2) ? i^1 : i;  /* Search TEMP before MAIN */
-    if( zDb && tdsqlite3StrICmp(db->aDb[j].zDbSName, zDb) ) continue;
-    assert( tdsqlite3SchemaMutexHeld(db, j, 0) );
-    pTrigger = tdsqlite3HashFind(&(db->aDb[j].pSchema->trigHash), zName);
-    if( pTrigger ) break;
-  }
-  if( !pTrigger ){
-    if( !noErr ){
-      tdsqlite3ErrorMsg(pParse, "no such trigger: %S", pName, 0);
-    }else{
-      tdsqlite3CodeVerifyNamedSchema(pParse, zDb);
-    }
-    pParse->checkSchema = 1;
-    goto drop_trigger_cleanup;
-  }
-  tdsqlite3DropTriggerPtr(pParse, pTrigger);
-
-drop_trigger_cleanup:
-  tdsqlite3SrcListDelete(db, pName);
-}
-
-/*
-** Return a pointer to the Table structure for the table that a trigger
-** is set on.
-*/
-static Table *tableOfTrigger(Trigger *pTrigger){
-  return tdsqlite3HashFind(&pTrigger->pTabSchema->tblHash, pTrigger->table);
-}
-
-
-/*
-** Drop a trigger given a pointer to that trigger. 
-*/
-SQLITE_PRIVATE void tdsqlite3DropTriggerPtr(Parse *pParse, Trigger *pTrigger){
-  Table   *pTable;
-  Vdbe *v;
-  tdsqlite3 *db = pParse->db;
-  int iDb;
-
-  iDb = tdsqlite3SchemaToIndex(pParse->db, pTrigger->pSchema);
-  assert( iDb>=0 && iDb<db->nDb );
-  pTable = tableOfTrigger(pTrigger);
-  assert( (pTable && pTable->pSchema==pTrigger->pSchema) || iDb==1 );
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  if( pTable ){
-    int code = SQLITE_DROP_TRIGGER;
-    const char *zDb = db->aDb[iDb].zDbSName;
-    const char *zTab = SCHEMA_TABLE(iDb);
-    if( iDb==1 ) code = SQLITE_DROP_TEMP_TRIGGER;
-    if( tdsqlite3AuthCheck(pParse, code, pTrigger->zName, pTable->zName, zDb) ||
-      tdsqlite3AuthCheck(pParse, SQLITE_DELETE, zTab, 0, zDb) ){
-      return;
-    }
-  }
-#endif
-
-  /* Generate code to destroy the database record of the trigger.
-  */
-  if( (v = tdsqlite3GetVdbe(pParse))!=0 ){
-    tdsqlite3NestedParse(pParse,
-       "DELETE FROM %Q.%s WHERE name=%Q AND type='trigger'",
-       db->aDb[iDb].zDbSName, MASTER_NAME, pTrigger->zName
-    );
-    tdsqlite3ChangeCookie(pParse, iDb);
-    tdsqlite3VdbeAddOp4(v, OP_DropTrigger, iDb, 0, 0, pTrigger->zName, 0);
-  }
-}
-
-/*
-** Remove a trigger from the hash tables of the sqlite* pointer.
-*/
-SQLITE_PRIVATE void tdsqlite3UnlinkAndDeleteTrigger(tdsqlite3 *db, int iDb, const char *zName){
-  Trigger *pTrigger;
-  Hash *pHash;
-
-  assert( tdsqlite3SchemaMutexHeld(db, iDb, 0) );
-  pHash = &(db->aDb[iDb].pSchema->trigHash);
-  pTrigger = tdsqlite3HashInsert(pHash, zName, 0);
-  if( ALWAYS(pTrigger) ){
-    if( pTrigger->pSchema==pTrigger->pTabSchema ){
-      Table *pTab = tableOfTrigger(pTrigger);
-      if( pTab ){
-        Trigger **pp;
-        for(pp=&pTab->pTrigger; *pp; pp=&((*pp)->pNext)){
-          if( *pp==pTrigger ){
-            *pp = (*pp)->pNext;
-            break;
-          }
-        }
-      }
-    }
-    tdsqlite3DeleteTrigger(db, pTrigger);
-    db->mDbFlags |= DBFLAG_SchemaChange;
-  }
-}
-
-/*
-** pEList is the SET clause of an UPDATE statement.  Each entry
-** in pEList is of the format <id>=<expr>.  If any of the entries
-** in pEList have an <id> which matches an identifier in pIdList,
-** then return TRUE.  If pIdList==NULL, then it is considered a
-** wildcard that matches anything.  Likewise if pEList==NULL then
-** it matches anything so always return true.  Return false only
-** if there is no match.
-*/
-static int checkColumnOverlap(IdList *pIdList, ExprList *pEList){
-  int e;
-  if( pIdList==0 || NEVER(pEList==0) ) return 1;
-  for(e=0; e<pEList->nExpr; e++){
-    if( tdsqlite3IdListIndex(pIdList, pEList->a[e].zEName)>=0 ) return 1;
-  }
-  return 0; 
-}
-
-/*
-** Return a list of all triggers on table pTab if there exists at least
-** one trigger that must be fired when an operation of type 'op' is 
-** performed on the table, and, if that operation is an UPDATE, if at
-** least one of the columns in pChanges is being modified.
-*/
-SQLITE_PRIVATE Trigger *tdsqlite3TriggersExist(
-  Parse *pParse,          /* Parse context */
-  Table *pTab,            /* The table the contains the triggers */
-  int op,                 /* one of TK_DELETE, TK_INSERT, TK_UPDATE */
-  ExprList *pChanges,     /* Columns that change in an UPDATE statement */
-  int *pMask              /* OUT: Mask of TRIGGER_BEFORE|TRIGGER_AFTER */
-){
-  int mask = 0;
-  Trigger *pList = 0;
-  Trigger *p;
-
-  if( (pParse->db->flags & SQLITE_EnableTrigger)!=0 ){
-    pList = tdsqlite3TriggerList(pParse, pTab);
-  }
-  assert( pList==0 || IsVirtual(pTab)==0 );
-  for(p=pList; p; p=p->pNext){
-    if( p->op==op && checkColumnOverlap(p->pColumns, pChanges) ){
-      mask |= p->tr_tm;
-    }
-  }
-  if( pMask ){
-    *pMask = mask;
-  }
-  return (mask ? pList : 0);
-}
-
-/*
-** Convert the pStep->zTarget string into a SrcList and return a pointer
-** to that SrcList.
-**
-** This routine adds a specific database name, if needed, to the target when
-** forming the SrcList.  This prevents a trigger in one database from
-** referring to a target in another database.  An exception is when the
-** trigger is in TEMP in which case it can refer to any other database it
-** wants.
-*/
-static SrcList *targetSrcList(
-  Parse *pParse,       /* The parsing context */
-  TriggerStep *pStep   /* The trigger containing the target token */
-){
-  tdsqlite3 *db = pParse->db;
-  int iDb;             /* Index of the database to use */
-  SrcList *pSrc;       /* SrcList to be returned */
-
-  pSrc = tdsqlite3SrcListAppend(pParse, 0, 0, 0);
-  if( pSrc ){
-    assert( pSrc->nSrc>0 );
-    pSrc->a[pSrc->nSrc-1].zName = tdsqlite3DbStrDup(db, pStep->zTarget);
-    iDb = tdsqlite3SchemaToIndex(db, pStep->pTrig->pSchema);
-    if( iDb==0 || iDb>=2 ){
-      const char *zDb;
-      assert( iDb<db->nDb );
-      zDb = db->aDb[iDb].zDbSName;
-      pSrc->a[pSrc->nSrc-1].zDatabase =  tdsqlite3DbStrDup(db, zDb);
-    }
-  }
-  return pSrc;
-}
-
-/*
-** Generate VDBE code for the statements inside the body of a single 
-** trigger.
-*/
-static int codeTriggerProgram(
-  Parse *pParse,            /* The parser context */
-  TriggerStep *pStepList,   /* List of statements inside the trigger body */
-  int orconf                /* Conflict algorithm. (OE_Abort, etc) */  
-){
-  TriggerStep *pStep;
-  Vdbe *v = pParse->pVdbe;
-  tdsqlite3 *db = pParse->db;
-
-  assert( pParse->pTriggerTab && pParse->pToplevel );
-  assert( pStepList );
-  assert( v!=0 );
-  for(pStep=pStepList; pStep; pStep=pStep->pNext){
-    /* Figure out the ON CONFLICT policy that will be used for this step
-    ** of the trigger program. If the statement that caused this trigger
-    ** to fire had an explicit ON CONFLICT, then use it. Otherwise, use
-    ** the ON CONFLICT policy that was specified as part of the trigger
-    ** step statement. Example:
-    **
-    **   CREATE TRIGGER AFTER INSERT ON t1 BEGIN;
-    **     INSERT OR REPLACE INTO t2 VALUES(new.a, new.b);
-    **   END;
-    **
-    **   INSERT INTO t1 ... ;            -- insert into t2 uses REPLACE policy
-    **   INSERT OR IGNORE INTO t1 ... ;  -- insert into t2 uses IGNORE policy
-    */
-    pParse->eOrconf = (orconf==OE_Default)?pStep->orconf:(u8)orconf;
-    assert( pParse->okConstFactor==0 );
-
-#ifndef SQLITE_OMIT_TRACE
-    if( pStep->zSpan ){
-      tdsqlite3VdbeAddOp4(v, OP_Trace, 0x7fffffff, 1, 0,
-                        tdsqlite3MPrintf(db, "-- %s", pStep->zSpan),
-                        P4_DYNAMIC);
-    }
-#endif
-
-    switch( pStep->op ){
-      case TK_UPDATE: {
-        tdsqlite3Update(pParse, 
-          targetSrcList(pParse, pStep),
-          tdsqlite3ExprListDup(db, pStep->pExprList, 0), 
-          tdsqlite3ExprDup(db, pStep->pWhere, 0), 
-          pParse->eOrconf, 0, 0, 0
-        );
-        break;
-      }
-      case TK_INSERT: {
-        tdsqlite3Insert(pParse, 
-          targetSrcList(pParse, pStep),
-          tdsqlite3SelectDup(db, pStep->pSelect, 0), 
-          tdsqlite3IdListDup(db, pStep->pIdList), 
-          pParse->eOrconf,
-          tdsqlite3UpsertDup(db, pStep->pUpsert)
-        );
-        break;
-      }
-      case TK_DELETE: {
-        tdsqlite3DeleteFrom(pParse, 
-          targetSrcList(pParse, pStep),
-          tdsqlite3ExprDup(db, pStep->pWhere, 0), 0, 0
-        );
-        break;
-      }
-      default: assert( pStep->op==TK_SELECT ); {
-        SelectDest sDest;
-        Select *pSelect = tdsqlite3SelectDup(db, pStep->pSelect, 0);
-        tdsqlite3SelectDestInit(&sDest, SRT_Discard, 0);
-        tdsqlite3Select(pParse, pSelect, &sDest);
-        tdsqlite3SelectDelete(db, pSelect);
-        break;
-      }
-    } 
-    if( pStep->op!=TK_SELECT ){
-      tdsqlite3VdbeAddOp0(v, OP_ResetCount);
-    }
-  }
-
-  return 0;
-}
-
-#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
-/*
-** This function is used to add VdbeComment() annotations to a VDBE
-** program. It is not used in production code, only for debugging.
-*/
-static const char *onErrorText(int onError){
-  switch( onError ){
-    case OE_Abort:    return "abort";
-    case OE_Rollback: return "rollback";
-    case OE_Fail:     return "fail";
-    case OE_Replace:  return "replace";
-    case OE_Ignore:   return "ignore";
-    case OE_Default:  return "default";
-  }
-  return "n/a";
-}
-#endif
-
-/*
-** Parse context structure pFrom has just been used to create a sub-vdbe
-** (trigger program). If an error has occurred, transfer error information
-** from pFrom to pTo.
-*/
-static void transferParseError(Parse *pTo, Parse *pFrom){
-  assert( pFrom->zErrMsg==0 || pFrom->nErr );
-  assert( pTo->zErrMsg==0 || pTo->nErr );
-  if( pTo->nErr==0 ){
-    pTo->zErrMsg = pFrom->zErrMsg;
-    pTo->nErr = pFrom->nErr;
-    pTo->rc = pFrom->rc;
-  }else{
-    tdsqlite3DbFree(pFrom->db, pFrom->zErrMsg);
-  }
-}
-
-/*
-** Create and populate a new TriggerPrg object with a sub-program 
-** implementing trigger pTrigger with ON CONFLICT policy orconf.
-*/
-static TriggerPrg *codeRowTrigger(
-  Parse *pParse,       /* Current parse context */
-  Trigger *pTrigger,   /* Trigger to code */
-  Table *pTab,         /* The table pTrigger is attached to */
-  int orconf           /* ON CONFLICT policy to code trigger program with */
-){
-  Parse *pTop = tdsqlite3ParseToplevel(pParse);
-  tdsqlite3 *db = pParse->db;   /* Database handle */
-  TriggerPrg *pPrg;           /* Value to return */
-  Expr *pWhen = 0;            /* Duplicate of trigger WHEN expression */
-  Vdbe *v;                    /* Temporary VM */
-  NameContext sNC;            /* Name context for sub-vdbe */
-  SubProgram *pProgram = 0;   /* Sub-vdbe for trigger program */
-  Parse *pSubParse;           /* Parse context for sub-vdbe */
-  int iEndTrigger = 0;        /* Label to jump to if WHEN is false */
-
-  assert( pTrigger->zName==0 || pTab==tableOfTrigger(pTrigger) );
-  assert( pTop->pVdbe );
-
-  /* Allocate the TriggerPrg and SubProgram objects. To ensure that they
-  ** are freed if an error occurs, link them into the Parse.pTriggerPrg 
-  ** list of the top-level Parse object sooner rather than later.  */
-  pPrg = tdsqlite3DbMallocZero(db, sizeof(TriggerPrg));
-  if( !pPrg ) return 0;
-  pPrg->pNext = pTop->pTriggerPrg;
-  pTop->pTriggerPrg = pPrg;
-  pPrg->pProgram = pProgram = tdsqlite3DbMallocZero(db, sizeof(SubProgram));
-  if( !pProgram ) return 0;
-  tdsqlite3VdbeLinkSubProgram(pTop->pVdbe, pProgram);
-  pPrg->pTrigger = pTrigger;
-  pPrg->orconf = orconf;
-  pPrg->aColmask[0] = 0xffffffff;
-  pPrg->aColmask[1] = 0xffffffff;
-
-  /* Allocate and populate a new Parse context to use for coding the 
-  ** trigger sub-program.  */
-  pSubParse = tdsqlite3StackAllocZero(db, sizeof(Parse));
-  if( !pSubParse ) return 0;
-  memset(&sNC, 0, sizeof(sNC));
-  sNC.pParse = pSubParse;
-  pSubParse->db = db;
-  pSubParse->pTriggerTab = pTab;
-  pSubParse->pToplevel = pTop;
-  pSubParse->zAuthContext = pTrigger->zName;
-  pSubParse->eTriggerOp = pTrigger->op;
-  pSubParse->nQueryLoop = pParse->nQueryLoop;
-  pSubParse->disableVtab = pParse->disableVtab;
-
-  v = tdsqlite3GetVdbe(pSubParse);
-  if( v ){
-    VdbeComment((v, "Start: %s.%s (%s %s%s%s ON %s)", 
-      pTrigger->zName, onErrorText(orconf),
-      (pTrigger->tr_tm==TRIGGER_BEFORE ? "BEFORE" : "AFTER"),
-        (pTrigger->op==TK_UPDATE ? "UPDATE" : ""),
-        (pTrigger->op==TK_INSERT ? "INSERT" : ""),
-        (pTrigger->op==TK_DELETE ? "DELETE" : ""),
-      pTab->zName
-    ));
-#ifndef SQLITE_OMIT_TRACE
-    if( pTrigger->zName ){
-      tdsqlite3VdbeChangeP4(v, -1, 
-        tdsqlite3MPrintf(db, "-- TRIGGER %s", pTrigger->zName), P4_DYNAMIC
-      );
-    }
-#endif
-
-    /* If one was specified, code the WHEN clause. If it evaluates to false
-    ** (or NULL) the sub-vdbe is immediately halted by jumping to the 
-    ** OP_Halt inserted at the end of the program.  */
-    if( pTrigger->pWhen ){
-      pWhen = tdsqlite3ExprDup(db, pTrigger->pWhen, 0);
-      if( SQLITE_OK==tdsqlite3ResolveExprNames(&sNC, pWhen) 
-       && db->mallocFailed==0 
-      ){
-        iEndTrigger = tdsqlite3VdbeMakeLabel(pSubParse);
-        tdsqlite3ExprIfFalse(pSubParse, pWhen, iEndTrigger, SQLITE_JUMPIFNULL);
-      }
-      tdsqlite3ExprDelete(db, pWhen);
-    }
-
-    /* Code the trigger program into the sub-vdbe. */
-    codeTriggerProgram(pSubParse, pTrigger->step_list, orconf);
-
-    /* Insert an OP_Halt at the end of the sub-program. */
-    if( iEndTrigger ){
-      tdsqlite3VdbeResolveLabel(v, iEndTrigger);
-    }
-    tdsqlite3VdbeAddOp0(v, OP_Halt);
-    VdbeComment((v, "End: %s.%s", pTrigger->zName, onErrorText(orconf)));
-
-    transferParseError(pParse, pSubParse);
-    if( db->mallocFailed==0 && pParse->nErr==0 ){
-      pProgram->aOp = tdsqlite3VdbeTakeOpArray(v, &pProgram->nOp, &pTop->nMaxArg);
-    }
-    pProgram->nMem = pSubParse->nMem;
-    pProgram->nCsr = pSubParse->nTab;
-    pProgram->token = (void *)pTrigger;
-    pPrg->aColmask[0] = pSubParse->oldmask;
-    pPrg->aColmask[1] = pSubParse->newmask;
-    tdsqlite3VdbeDelete(v);
-  }
-
-  assert( !pSubParse->pAinc       && !pSubParse->pZombieTab );
-  assert( !pSubParse->pTriggerPrg && !pSubParse->nMaxArg );
-  tdsqlite3ParserReset(pSubParse);
-  tdsqlite3StackFree(db, pSubParse);
-
-  return pPrg;
-}
-    
-/*
-** Return a pointer to a TriggerPrg object containing the sub-program for
-** trigger pTrigger with default ON CONFLICT algorithm orconf. If no such
-** TriggerPrg object exists, a new object is allocated and populated before
-** being returned.
-*/
-static TriggerPrg *getRowTrigger(
-  Parse *pParse,       /* Current parse context */
-  Trigger *pTrigger,   /* Trigger to code */
-  Table *pTab,         /* The table trigger pTrigger is attached to */
-  int orconf           /* ON CONFLICT algorithm. */
-){
-  Parse *pRoot = tdsqlite3ParseToplevel(pParse);
-  TriggerPrg *pPrg;
-
-  assert( pTrigger->zName==0 || pTab==tableOfTrigger(pTrigger) );
-
-  /* It may be that this trigger has already been coded (or is in the
-  ** process of being coded). If this is the case, then an entry with
-  ** a matching TriggerPrg.pTrigger field will be present somewhere
-  ** in the Parse.pTriggerPrg list. Search for such an entry.  */
-  for(pPrg=pRoot->pTriggerPrg; 
-      pPrg && (pPrg->pTrigger!=pTrigger || pPrg->orconf!=orconf); 
-      pPrg=pPrg->pNext
-  );
-
-  /* If an existing TriggerPrg could not be located, create a new one. */
-  if( !pPrg ){
-    pPrg = codeRowTrigger(pParse, pTrigger, pTab, orconf);
-  }
-
-  return pPrg;
-}
-
-/*
-** Generate code for the trigger program associated with trigger p on 
-** table pTab. The reg, orconf and ignoreJump parameters passed to this
-** function are the same as those described in the header function for
-** tdsqlite3CodeRowTrigger()
-*/
-SQLITE_PRIVATE void tdsqlite3CodeRowTriggerDirect(
-  Parse *pParse,       /* Parse context */
-  Trigger *p,          /* Trigger to code */
-  Table *pTab,         /* The table to code triggers from */
-  int reg,             /* Reg array containing OLD.* and NEW.* values */
-  int orconf,          /* ON CONFLICT policy */
-  int ignoreJump       /* Instruction to jump to for RAISE(IGNORE) */
-){
-  Vdbe *v = tdsqlite3GetVdbe(pParse); /* Main VM */
-  TriggerPrg *pPrg;
-  pPrg = getRowTrigger(pParse, p, pTab, orconf);
-  assert( pPrg || pParse->nErr || pParse->db->mallocFailed );
-
-  /* Code the OP_Program opcode in the parent VDBE. P4 of the OP_Program 
-  ** is a pointer to the sub-vdbe containing the trigger program.  */
-  if( pPrg ){
-    int bRecursive = (p->zName && 0==(pParse->db->flags&SQLITE_RecTriggers));
-
-    tdsqlite3VdbeAddOp4(v, OP_Program, reg, ignoreJump, ++pParse->nMem,
-                      (const char *)pPrg->pProgram, P4_SUBPROGRAM);
-    VdbeComment(
-        (v, "Call: %s.%s", (p->zName?p->zName:"fkey"), onErrorText(orconf)));
-
-    /* Set the P5 operand of the OP_Program instruction to non-zero if
-    ** recursive invocation of this trigger program is disallowed. Recursive
-    ** invocation is disallowed if (a) the sub-program is really a trigger,
-    ** not a foreign key action, and (b) the flag to enable recursive triggers
-    ** is clear.  */
-    tdsqlite3VdbeChangeP5(v, (u8)bRecursive);
-  }
-}
-
-/*
-** This is called to code the required FOR EACH ROW triggers for an operation
-** on table pTab. The operation to code triggers for (INSERT, UPDATE or DELETE)
-** is given by the op parameter. The tr_tm parameter determines whether the
-** BEFORE or AFTER triggers are coded. If the operation is an UPDATE, then
-** parameter pChanges is passed the list of columns being modified.
-**
-** If there are no triggers that fire at the specified time for the specified
-** operation on pTab, this function is a no-op.
-**
-** The reg argument is the address of the first in an array of registers 
-** that contain the values substituted for the new.* and old.* references
-** in the trigger program. If N is the number of columns in table pTab
-** (a copy of pTab->nCol), then registers are populated as follows:
-**
-**   Register       Contains
-**   ------------------------------------------------------
-**   reg+0          OLD.rowid
-**   reg+1          OLD.* value of left-most column of pTab
-**   ...            ...
-**   reg+N          OLD.* value of right-most column of pTab
-**   reg+N+1        NEW.rowid
-**   reg+N+2        OLD.* value of left-most column of pTab
-**   ...            ...
-**   reg+N+N+1      NEW.* value of right-most column of pTab
-**
-** For ON DELETE triggers, the registers containing the NEW.* values will
-** never be accessed by the trigger program, so they are not allocated or 
-** populated by the caller (there is no data to populate them with anyway). 
-** Similarly, for ON INSERT triggers the values stored in the OLD.* registers
-** are never accessed, and so are not allocated by the caller. So, for an
-** ON INSERT trigger, the value passed to this function as parameter reg
-** is not a readable register, although registers (reg+N) through 
-** (reg+N+N+1) are.
-**
-** Parameter orconf is the default conflict resolution algorithm for the
-** trigger program to use (REPLACE, IGNORE etc.). Parameter ignoreJump
-** is the instruction that control should jump to if a trigger program
-** raises an IGNORE exception.
-*/
-SQLITE_PRIVATE void tdsqlite3CodeRowTrigger(
-  Parse *pParse,       /* Parse context */
-  Trigger *pTrigger,   /* List of triggers on table pTab */
-  int op,              /* One of TK_UPDATE, TK_INSERT, TK_DELETE */
-  ExprList *pChanges,  /* Changes list for any UPDATE OF triggers */
-  int tr_tm,           /* One of TRIGGER_BEFORE, TRIGGER_AFTER */
-  Table *pTab,         /* The table to code triggers from */
-  int reg,             /* The first in an array of registers (see above) */
-  int orconf,          /* ON CONFLICT policy */
-  int ignoreJump       /* Instruction to jump to for RAISE(IGNORE) */
-){
-  Trigger *p;          /* Used to iterate through pTrigger list */
-
-  assert( op==TK_UPDATE || op==TK_INSERT || op==TK_DELETE );
-  assert( tr_tm==TRIGGER_BEFORE || tr_tm==TRIGGER_AFTER );
-  assert( (op==TK_UPDATE)==(pChanges!=0) );
-
-  for(p=pTrigger; p; p=p->pNext){
-
-    /* Sanity checking:  The schema for the trigger and for the table are
-    ** always defined.  The trigger must be in the same schema as the table
-    ** or else it must be a TEMP trigger. */
-    assert( p->pSchema!=0 );
-    assert( p->pTabSchema!=0 );
-    assert( p->pSchema==p->pTabSchema 
-         || p->pSchema==pParse->db->aDb[1].pSchema );
-
-    /* Determine whether we should code this trigger */
-    if( p->op==op 
-     && p->tr_tm==tr_tm 
-     && checkColumnOverlap(p->pColumns, pChanges)
-    ){
-      tdsqlite3CodeRowTriggerDirect(pParse, p, pTab, reg, orconf, ignoreJump);
-    }
-  }
-}
-
-/*
-** Triggers may access values stored in the old.* or new.* pseudo-table. 
-** This function returns a 32-bit bitmask indicating which columns of the 
-** old.* or new.* tables actually are used by triggers. This information 
-** may be used by the caller, for example, to avoid having to load the entire
-** old.* record into memory when executing an UPDATE or DELETE command.
-**
-** Bit 0 of the returned mask is set if the left-most column of the
-** table may be accessed using an [old|new].<col> reference. Bit 1 is set if
-** the second leftmost column value is required, and so on. If there
-** are more than 32 columns in the table, and at least one of the columns
-** with an index greater than 32 may be accessed, 0xffffffff is returned.
-**
-** It is not possible to determine if the old.rowid or new.rowid column is 
-** accessed by triggers. The caller must always assume that it is.
-**
-** Parameter isNew must be either 1 or 0. If it is 0, then the mask returned
-** applies to the old.* table. If 1, the new.* table.
-**
-** Parameter tr_tm must be a mask with one or both of the TRIGGER_BEFORE
-** and TRIGGER_AFTER bits set. Values accessed by BEFORE triggers are only
-** included in the returned mask if the TRIGGER_BEFORE bit is set in the
-** tr_tm parameter. Similarly, values accessed by AFTER triggers are only
-** included in the returned mask if the TRIGGER_AFTER bit is set in tr_tm.
-*/
-SQLITE_PRIVATE u32 tdsqlite3TriggerColmask(
-  Parse *pParse,       /* Parse context */
-  Trigger *pTrigger,   /* List of triggers on table pTab */
-  ExprList *pChanges,  /* Changes list for any UPDATE OF triggers */
-  int isNew,           /* 1 for new.* ref mask, 0 for old.* ref mask */
-  int tr_tm,           /* Mask of TRIGGER_BEFORE|TRIGGER_AFTER */
-  Table *pTab,         /* The table to code triggers from */
-  int orconf           /* Default ON CONFLICT policy for trigger steps */
-){
-  const int op = pChanges ? TK_UPDATE : TK_DELETE;
-  u32 mask = 0;
-  Trigger *p;
-
-  assert( isNew==1 || isNew==0 );
-  for(p=pTrigger; p; p=p->pNext){
-    if( p->op==op && (tr_tm&p->tr_tm)
-     && checkColumnOverlap(p->pColumns,pChanges)
-    ){
-      TriggerPrg *pPrg;
-      pPrg = getRowTrigger(pParse, p, pTab, orconf);
-      if( pPrg ){
-        mask |= pPrg->aColmask[isNew];
-      }
-    }
-  }
-
-  return mask;
-}
-
-#endif /* !defined(SQLITE_OMIT_TRIGGER) */
-
-/************** End of trigger.c *********************************************/
-/************** Begin file update.c ******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains C code routines that are called by the parser
-** to handle UPDATE statements.
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* Forward declaration */
-static void updateVirtualTable(
-  Parse *pParse,       /* The parsing context */
-  SrcList *pSrc,       /* The virtual table to be modified */
-  Table *pTab,         /* The virtual table */
-  ExprList *pChanges,  /* The columns to change in the UPDATE statement */
-  Expr *pRowidExpr,    /* Expression used to recompute the rowid */
-  int *aXRef,          /* Mapping from columns of pTab to entries in pChanges */
-  Expr *pWhere,        /* WHERE clause of the UPDATE statement */
-  int onError          /* ON CONFLICT strategy */
-);
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-/*
-** The most recently coded instruction was an OP_Column to retrieve the
-** i-th column of table pTab. This routine sets the P4 parameter of the 
-** OP_Column to the default value, if any.
-**
-** The default value of a column is specified by a DEFAULT clause in the 
-** column definition. This was either supplied by the user when the table
-** was created, or added later to the table definition by an ALTER TABLE
-** command. If the latter, then the row-records in the table btree on disk
-** may not contain a value for the column and the default value, taken
-** from the P4 parameter of the OP_Column instruction, is returned instead.
-** If the former, then all row-records are guaranteed to include a value
-** for the column and the P4 value is not required.
-**
-** Column definitions created by an ALTER TABLE command may only have 
-** literal default values specified: a number, null or a string. (If a more
-** complicated default expression value was provided, it is evaluated 
-** when the ALTER TABLE is executed and one of the literal values written
-** into the sqlite_master table.)
-**
-** Therefore, the P4 parameter is only required if the default value for
-** the column is a literal number, string or null. The tdsqlite3ValueFromExpr()
-** function is capable of transforming these types of expressions into
-** tdsqlite3_value objects.
-**
-** If parameter iReg is not negative, code an OP_RealAffinity instruction
-** on register iReg. This is used when an equivalent integer value is 
-** stored in place of an 8-byte floating point value in order to save 
-** space.
-*/
-SQLITE_PRIVATE void tdsqlite3ColumnDefault(Vdbe *v, Table *pTab, int i, int iReg){
-  assert( pTab!=0 );
-  if( !pTab->pSelect ){
-    tdsqlite3_value *pValue = 0;
-    u8 enc = ENC(tdsqlite3VdbeDb(v));
-    Column *pCol = &pTab->aCol[i];
-    VdbeComment((v, "%s.%s", pTab->zName, pCol->zName));
-    assert( i<pTab->nCol );
-    tdsqlite3ValueFromExpr(tdsqlite3VdbeDb(v), pCol->pDflt, enc, 
-                         pCol->affinity, &pValue);
-    if( pValue ){
-      tdsqlite3VdbeAppendP4(v, pValue, P4_MEM);
-    }
-  }
-#ifndef SQLITE_OMIT_FLOATING_POINT
-  if( pTab->aCol[i].affinity==SQLITE_AFF_REAL ){
-    tdsqlite3VdbeAddOp1(v, OP_RealAffinity, iReg);
-  }
-#endif
-}
-
-/*
-** Check to see if column iCol of index pIdx references any of the
-** columns defined by aXRef and chngRowid.  Return true if it does
-** and false if not.  This is an optimization.  False-positives are a
-** performance degradation, but false-negatives can result in a corrupt
-** index and incorrect answers.
-**
-** aXRef[j] will be non-negative if column j of the original table is
-** being updated.  chngRowid will be true if the rowid of the table is
-** being updated.
-*/
-static int indexColumnIsBeingUpdated(
-  Index *pIdx,      /* The index to check */
-  int iCol,         /* Which column of the index to check */
-  int *aXRef,       /* aXRef[j]>=0 if column j is being updated */
-  int chngRowid     /* true if the rowid is being updated */
-){
-  i16 iIdxCol = pIdx->aiColumn[iCol];
-  assert( iIdxCol!=XN_ROWID ); /* Cannot index rowid */
-  if( iIdxCol>=0 ){
-    return aXRef[iIdxCol]>=0;
-  }
-  assert( iIdxCol==XN_EXPR );
-  assert( pIdx->aColExpr!=0 );
-  assert( pIdx->aColExpr->a[iCol].pExpr!=0 );
-  return tdsqlite3ExprReferencesUpdatedColumn(pIdx->aColExpr->a[iCol].pExpr,
-                                            aXRef,chngRowid);
-}
-
-/*
-** Check to see if index pIdx is a partial index whose conditional
-** expression might change values due to an UPDATE.  Return true if
-** the index is subject to change and false if the index is guaranteed
-** to be unchanged.  This is an optimization.  False-positives are a
-** performance degradation, but false-negatives can result in a corrupt
-** index and incorrect answers.
-**
-** aXRef[j] will be non-negative if column j of the original table is
-** being updated.  chngRowid will be true if the rowid of the table is
-** being updated.
-*/
-static int indexWhereClauseMightChange(
-  Index *pIdx,      /* The index to check */
-  int *aXRef,       /* aXRef[j]>=0 if column j is being updated */
-  int chngRowid     /* true if the rowid is being updated */
-){
-  if( pIdx->pPartIdxWhere==0 ) return 0;
-  return tdsqlite3ExprReferencesUpdatedColumn(pIdx->pPartIdxWhere,
-                                            aXRef, chngRowid);
-}
-
-/*
-** Process an UPDATE statement.
-**
-**   UPDATE OR IGNORE table_wxyz SET a=b, c=d WHERE e<5 AND f NOT NULL;
-**          \_______/ \________/     \______/       \________________/
-*            onError   pTabList      pChanges             pWhere
-*/
-SQLITE_PRIVATE void tdsqlite3Update(
-  Parse *pParse,         /* The parser context */
-  SrcList *pTabList,     /* The table in which we should change things */
-  ExprList *pChanges,    /* Things to be changed */
-  Expr *pWhere,          /* The WHERE clause.  May be null */
-  int onError,           /* How to handle constraint errors */
-  ExprList *pOrderBy,    /* ORDER BY clause. May be null */
-  Expr *pLimit,          /* LIMIT clause. May be null */
-  Upsert *pUpsert        /* ON CONFLICT clause, or null */
-){
-  int i, j, k;           /* Loop counters */
-  Table *pTab;           /* The table to be updated */
-  int addrTop = 0;       /* VDBE instruction address of the start of the loop */
-  WhereInfo *pWInfo;     /* Information about the WHERE clause */
-  Vdbe *v;               /* The virtual database engine */
-  Index *pIdx;           /* For looping over indices */
-  Index *pPk;            /* The PRIMARY KEY index for WITHOUT ROWID tables */
-  int nIdx;              /* Number of indices that need updating */
-  int nAllIdx;           /* Total number of indexes */
-  int iBaseCur;          /* Base cursor number */
-  int iDataCur;          /* Cursor for the canonical data btree */
-  int iIdxCur;           /* Cursor for the first index */
-  tdsqlite3 *db;           /* The database structure */
-  int *aRegIdx = 0;      /* Registers for to each index and the main table */
-  int *aXRef = 0;        /* aXRef[i] is the index in pChanges->a[] of the
-                         ** an expression for the i-th column of the table.
-                         ** aXRef[i]==-1 if the i-th column is not changed. */
-  u8 *aToOpen;           /* 1 for tables and indices to be opened */
-  u8 chngPk;             /* PRIMARY KEY changed in a WITHOUT ROWID table */
-  u8 chngRowid;          /* Rowid changed in a normal table */
-  u8 chngKey;            /* Either chngPk or chngRowid */
-  Expr *pRowidExpr = 0;  /* Expression defining the new record number */
-  AuthContext sContext;  /* The authorization context */
-  NameContext sNC;       /* The name-context to resolve expressions in */
-  int iDb;               /* Database containing the table being updated */
-  int eOnePass;          /* ONEPASS_XXX value from where.c */
-  int hasFK;             /* True if foreign key processing is required */
-  int labelBreak;        /* Jump here to break out of UPDATE loop */
-  int labelContinue;     /* Jump here to continue next step of UPDATE loop */
-  int flags;             /* Flags for tdsqlite3WhereBegin() */
-
-#ifndef SQLITE_OMIT_TRIGGER
-  int isView;            /* True when updating a view (INSTEAD OF trigger) */
-  Trigger *pTrigger;     /* List of triggers on pTab, if required */
-  int tmask;             /* Mask of TRIGGER_BEFORE|TRIGGER_AFTER */
-#endif
-  int newmask;           /* Mask of NEW.* columns accessed by BEFORE triggers */
-  int iEph = 0;          /* Ephemeral table holding all primary key values */
-  int nKey = 0;          /* Number of elements in regKey for WITHOUT ROWID */
-  int aiCurOnePass[2];   /* The write cursors opened by WHERE_ONEPASS */
-  int addrOpen = 0;      /* Address of OP_OpenEphemeral */
-  int iPk = 0;           /* First of nPk cells holding PRIMARY KEY value */
-  i16 nPk = 0;           /* Number of components of the PRIMARY KEY */
-  int bReplace = 0;      /* True if REPLACE conflict resolution might happen */
-  int bFinishSeek = 1;   /* The OP_FinishSeek opcode is needed */
-
-  /* Register Allocations */
-  int regRowCount = 0;   /* A count of rows changed */
-  int regOldRowid = 0;   /* The old rowid */
-  int regNewRowid = 0;   /* The new rowid */
-  int regNew = 0;        /* Content of the NEW.* table in triggers */
-  int regOld = 0;        /* Content of OLD.* table in triggers */
-  int regRowSet = 0;     /* Rowset of rows to be updated */
-  int regKey = 0;        /* composite PRIMARY KEY value */
-
-  memset(&sContext, 0, sizeof(sContext));
-  db = pParse->db;
-  if( pParse->nErr || db->mallocFailed ){
-    goto update_cleanup;
-  }
-  assert( pTabList->nSrc==1 );
-
-  /* Locate the table which we want to update. 
-  */
-  pTab = tdsqlite3SrcListLookup(pParse, pTabList);
-  if( pTab==0 ) goto update_cleanup;
-  iDb = tdsqlite3SchemaToIndex(pParse->db, pTab->pSchema);
-
-  /* Figure out if we have any triggers and if the table being
-  ** updated is a view.
-  */
-#ifndef SQLITE_OMIT_TRIGGER
-  pTrigger = tdsqlite3TriggersExist(pParse, pTab, TK_UPDATE, pChanges, &tmask);
-  isView = pTab->pSelect!=0;
-  assert( pTrigger || tmask==0 );
-#else
-# define pTrigger 0
-# define isView 0
-# define tmask 0
-#endif
-#ifdef SQLITE_OMIT_VIEW
-# undef isView
-# define isView 0
-#endif
-
-#ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
-  if( !isView ){
-    pWhere = tdsqlite3LimitWhere(
-        pParse, pTabList, pWhere, pOrderBy, pLimit, "UPDATE"
-    );
-    pOrderBy = 0;
-    pLimit = 0;
-  }
-#endif
-
-  if( tdsqlite3ViewGetColumnNames(pParse, pTab) ){
-    goto update_cleanup;
-  }
-  if( tdsqlite3IsReadOnly(pParse, pTab, tmask) ){
-    goto update_cleanup;
-  }
-
-  /* Allocate a cursors for the main database table and for all indices.
-  ** The index cursors might not be used, but if they are used they
-  ** need to occur right after the database cursor.  So go ahead and
-  ** allocate enough space, just in case.
-  */
-  iBaseCur = iDataCur = pParse->nTab++;
-  iIdxCur = iDataCur+1;
-  pPk = HasRowid(pTab) ? 0 : tdsqlite3PrimaryKeyIndex(pTab);
-  testcase( pPk!=0 && pPk!=pTab->pIndex );
-  for(nIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nIdx++){
-    if( pPk==pIdx ){
-      iDataCur = pParse->nTab;
-    }
-    pParse->nTab++;
-  }
-  if( pUpsert ){
-    /* On an UPSERT, reuse the same cursors already opened by INSERT */
-    iDataCur = pUpsert->iDataCur;
-    iIdxCur = pUpsert->iIdxCur;
-    pParse->nTab = iBaseCur;
-  }
-  pTabList->a[0].iCursor = iDataCur;
-
-  /* Allocate space for aXRef[], aRegIdx[], and aToOpen[].  
-  ** Initialize aXRef[] and aToOpen[] to their default values.
-  */
-  aXRef = tdsqlite3DbMallocRawNN(db, sizeof(int) * (pTab->nCol+nIdx+1) + nIdx+2 );
-  if( aXRef==0 ) goto update_cleanup;
-  aRegIdx = aXRef+pTab->nCol;
-  aToOpen = (u8*)(aRegIdx+nIdx+1);
-  memset(aToOpen, 1, nIdx+1);
-  aToOpen[nIdx+1] = 0;
-  for(i=0; i<pTab->nCol; i++) aXRef[i] = -1;
-
-  /* Initialize the name-context */
-  memset(&sNC, 0, sizeof(sNC));
-  sNC.pParse = pParse;
-  sNC.pSrcList = pTabList;
-  sNC.uNC.pUpsert = pUpsert;
-  sNC.ncFlags = NC_UUpsert;
-
-  /* Begin generating code. */
-  v = tdsqlite3GetVdbe(pParse);
-  if( v==0 ) goto update_cleanup;
-
-  /* Resolve the column names in all the expressions of the
-  ** of the UPDATE statement.  Also find the column index
-  ** for each column to be updated in the pChanges array.  For each
-  ** column to be updated, make sure we have authorization to change
-  ** that column.
-  */
-  chngRowid = chngPk = 0;
-  for(i=0; i<pChanges->nExpr; i++){
-    if( tdsqlite3ResolveExprNames(&sNC, pChanges->a[i].pExpr) ){
-      goto update_cleanup;
-    }
-    for(j=0; j<pTab->nCol; j++){
-      if( tdsqlite3StrICmp(pTab->aCol[j].zName, pChanges->a[i].zEName)==0 ){
-        if( j==pTab->iPKey ){
-          chngRowid = 1;
-          pRowidExpr = pChanges->a[i].pExpr;
-        }else if( pPk && (pTab->aCol[j].colFlags & COLFLAG_PRIMKEY)!=0 ){
-          chngPk = 1;
-        }
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-        else if( pTab->aCol[j].colFlags & COLFLAG_GENERATED ){
-          testcase( pTab->aCol[j].colFlags & COLFLAG_VIRTUAL );
-          testcase( pTab->aCol[j].colFlags & COLFLAG_STORED );
-          tdsqlite3ErrorMsg(pParse, 
-             "cannot UPDATE generated column \"%s\"",
-             pTab->aCol[j].zName);
-          goto update_cleanup;
-        }
-#endif
-        aXRef[j] = i;
-        break;
-      }
-    }
-    if( j>=pTab->nCol ){
-      if( pPk==0 && tdsqlite3IsRowid(pChanges->a[i].zEName) ){
-        j = -1;
-        chngRowid = 1;
-        pRowidExpr = pChanges->a[i].pExpr;
-      }else{
-        tdsqlite3ErrorMsg(pParse, "no such column: %s", pChanges->a[i].zEName);
-        pParse->checkSchema = 1;
-        goto update_cleanup;
-      }
-    }
-#ifndef SQLITE_OMIT_AUTHORIZATION
-    {
-      int rc;
-      rc = tdsqlite3AuthCheck(pParse, SQLITE_UPDATE, pTab->zName,
-                            j<0 ? "ROWID" : pTab->aCol[j].zName,
-                            db->aDb[iDb].zDbSName);
-      if( rc==SQLITE_DENY ){
-        goto update_cleanup;
-      }else if( rc==SQLITE_IGNORE ){
-        aXRef[j] = -1;
-      }
-    }
-#endif
-  }
-  assert( (chngRowid & chngPk)==0 );
-  assert( chngRowid==0 || chngRowid==1 );
-  assert( chngPk==0 || chngPk==1 );
-  chngKey = chngRowid + chngPk;
-
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-  /* Mark generated columns as changing if their generator expressions
-  ** reference any changing column.  The actual aXRef[] value for 
-  ** generated expressions is not used, other than to check to see that it
-  ** is non-negative, so the value of aXRef[] for generated columns can be
-  ** set to any non-negative number.  We use 99999 so that the value is
-  ** obvious when looking at aXRef[] in a symbolic debugger. 
-  */
-  if( pTab->tabFlags & TF_HasGenerated ){
-    int bProgress;
-    testcase( pTab->tabFlags & TF_HasVirtual );
-    testcase( pTab->tabFlags & TF_HasStored );
-    do{
-      bProgress = 0;
-      for(i=0; i<pTab->nCol; i++){
-        if( aXRef[i]>=0 ) continue;
-        if( (pTab->aCol[i].colFlags & COLFLAG_GENERATED)==0 ) continue;
-        if( tdsqlite3ExprReferencesUpdatedColumn(pTab->aCol[i].pDflt,
-                                               aXRef, chngRowid) ){
-          aXRef[i] = 99999;
-          bProgress = 1;
-        }
-      }
-    }while( bProgress );
-  }
-#endif
-
-  /* The SET expressions are not actually used inside the WHERE loop.  
-  ** So reset the colUsed mask. Unless this is a virtual table. In that
-  ** case, set all bits of the colUsed mask (to ensure that the virtual
-  ** table implementation makes all columns available).
-  */
-  pTabList->a[0].colUsed = IsVirtual(pTab) ? ALLBITS : 0;
-
-  hasFK = tdsqlite3FkRequired(pParse, pTab, aXRef, chngKey);
-
-  /* There is one entry in the aRegIdx[] array for each index on the table
-  ** being updated.  Fill in aRegIdx[] with a register number that will hold
-  ** the key for accessing each index.
-  */
-  if( onError==OE_Replace ) bReplace = 1;
-  for(nAllIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nAllIdx++){
-    int reg;
-    if( chngKey || hasFK>1 || pIdx==pPk
-     || indexWhereClauseMightChange(pIdx,aXRef,chngRowid)
-    ){
-      reg = ++pParse->nMem;
-      pParse->nMem += pIdx->nColumn;
-    }else{
-      reg = 0;
-      for(i=0; i<pIdx->nKeyCol; i++){
-        if( indexColumnIsBeingUpdated(pIdx, i, aXRef, chngRowid) ){
-          reg = ++pParse->nMem;
-          pParse->nMem += pIdx->nColumn;
-          if( onError==OE_Default && pIdx->onError==OE_Replace ){
-            bReplace = 1;
-          }
-          break;
-        }
-      }
-    }
-    if( reg==0 ) aToOpen[nAllIdx+1] = 0;
-    aRegIdx[nAllIdx] = reg;
-  }
-  aRegIdx[nAllIdx] = ++pParse->nMem;  /* Register storing the table record */
-  if( bReplace ){
-    /* If REPLACE conflict resolution might be invoked, open cursors on all 
-    ** indexes in case they are needed to delete records.  */
-    memset(aToOpen, 1, nIdx+1);
-  }
-
-  if( pParse->nested==0 ) tdsqlite3VdbeCountChanges(v);
-  tdsqlite3BeginWriteOperation(pParse, pTrigger || hasFK, iDb);
-
-  /* Allocate required registers. */
-  if( !IsVirtual(pTab) ){
-    /* For now, regRowSet and aRegIdx[nAllIdx] share the same register.
-    ** If regRowSet turns out to be needed, then aRegIdx[nAllIdx] will be
-    ** reallocated.  aRegIdx[nAllIdx] is the register in which the main
-    ** table record is written.  regRowSet holds the RowSet for the
-    ** two-pass update algorithm. */
-    assert( aRegIdx[nAllIdx]==pParse->nMem );
-    regRowSet = aRegIdx[nAllIdx];
-    regOldRowid = regNewRowid = ++pParse->nMem;
-    if( chngPk || pTrigger || hasFK ){
-      regOld = pParse->nMem + 1;
-      pParse->nMem += pTab->nCol;
-    }
-    if( chngKey || pTrigger || hasFK ){
-      regNewRowid = ++pParse->nMem;
-    }
-    regNew = pParse->nMem + 1;
-    pParse->nMem += pTab->nCol;
-  }
-
-  /* Start the view context. */
-  if( isView ){
-    tdsqlite3AuthContextPush(pParse, &sContext, pTab->zName);
-  }
-
-  /* If we are trying to update a view, realize that view into
-  ** an ephemeral table.
-  */
-#if !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER)
-  if( isView ){
-    tdsqlite3MaterializeView(pParse, pTab, 
-        pWhere, pOrderBy, pLimit, iDataCur
-    );
-    pOrderBy = 0;
-    pLimit = 0;
-  }
-#endif
-
-  /* Resolve the column names in all the expressions in the
-  ** WHERE clause.
-  */
-  if( tdsqlite3ResolveExprNames(&sNC, pWhere) ){
-    goto update_cleanup;
-  }
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  /* Virtual tables must be handled separately */
-  if( IsVirtual(pTab) ){
-    updateVirtualTable(pParse, pTabList, pTab, pChanges, pRowidExpr, aXRef,
-                       pWhere, onError);
-    goto update_cleanup;
-  }
-#endif
-
-  /* Jump to labelBreak to abandon further processing of this UPDATE */
-  labelContinue = labelBreak = tdsqlite3VdbeMakeLabel(pParse);
-
-  /* Not an UPSERT.  Normal processing.  Begin by
-  ** initialize the count of updated rows */
-  if( (db->flags&SQLITE_CountRows)!=0
-   && !pParse->pTriggerTab
-   && !pParse->nested
-   && pUpsert==0
-  ){
-    regRowCount = ++pParse->nMem;
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regRowCount);
-  }
-
-  if( HasRowid(pTab) ){
-    tdsqlite3VdbeAddOp3(v, OP_Null, 0, regRowSet, regOldRowid);
-  }else{
-    assert( pPk!=0 );
-    nPk = pPk->nKeyCol;
-    iPk = pParse->nMem+1;
-    pParse->nMem += nPk;
-    regKey = ++pParse->nMem;
-    if( pUpsert==0 ){
-      iEph = pParse->nTab++;
-        tdsqlite3VdbeAddOp3(v, OP_Null, 0, iPk, iPk+nPk-1);
-      addrOpen = tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, iEph, nPk);
-      tdsqlite3VdbeSetP4KeyInfo(pParse, pPk);
-    }
-  }
-  
-  if( pUpsert ){
-    /* If this is an UPSERT, then all cursors have already been opened by
-    ** the outer INSERT and the data cursor should be pointing at the row
-    ** that is to be updated.  So bypass the code that searches for the
-    ** row(s) to be updated.
-    */
-    pWInfo = 0;
-    eOnePass = ONEPASS_SINGLE;
-    tdsqlite3ExprIfFalse(pParse, pWhere, labelBreak, SQLITE_JUMPIFNULL);
-    bFinishSeek = 0;
-  }else{
-    /* Begin the database scan. 
-    **
-    ** Do not consider a single-pass strategy for a multi-row update if
-    ** there are any triggers or foreign keys to process, or rows may
-    ** be deleted as a result of REPLACE conflict handling. Any of these
-    ** things might disturb a cursor being used to scan through the table
-    ** or index, causing a single-pass approach to malfunction.  */
-    flags = WHERE_ONEPASS_DESIRED|WHERE_SEEK_UNIQ_TABLE;
-    if( !pParse->nested && !pTrigger && !hasFK && !chngKey && !bReplace ){
-      flags |= WHERE_ONEPASS_MULTIROW;
-    }
-    pWInfo = tdsqlite3WhereBegin(pParse, pTabList, pWhere, 0, 0, flags, iIdxCur);
-    if( pWInfo==0 ) goto update_cleanup;
-  
-    /* A one-pass strategy that might update more than one row may not
-    ** be used if any column of the index used for the scan is being
-    ** updated. Otherwise, if there is an index on "b", statements like
-    ** the following could create an infinite loop:
-    **
-    **   UPDATE t1 SET b=b+1 WHERE b>?
-    **
-    ** Fall back to ONEPASS_OFF if where.c has selected a ONEPASS_MULTI
-    ** strategy that uses an index for which one or more columns are being
-    ** updated.  */
-    eOnePass = tdsqlite3WhereOkOnePass(pWInfo, aiCurOnePass);
-    bFinishSeek = tdsqlite3WhereUsesDeferredSeek(pWInfo);
-    if( eOnePass!=ONEPASS_SINGLE ){
-      tdsqlite3MultiWrite(pParse);
-      if( eOnePass==ONEPASS_MULTI ){
-        int iCur = aiCurOnePass[1];
-        if( iCur>=0 && iCur!=iDataCur && aToOpen[iCur-iBaseCur] ){
-          eOnePass = ONEPASS_OFF;
-        }
-        assert( iCur!=iDataCur || !HasRowid(pTab) );
-      }
-    }
-  }
-
-  if( HasRowid(pTab) ){
-    /* Read the rowid of the current row of the WHERE scan. In ONEPASS_OFF
-    ** mode, write the rowid into the FIFO. In either of the one-pass modes,
-    ** leave it in register regOldRowid.  */
-    tdsqlite3VdbeAddOp2(v, OP_Rowid, iDataCur, regOldRowid);
-    if( eOnePass==ONEPASS_OFF ){
-      /* We need to use regRowSet, so reallocate aRegIdx[nAllIdx] */
-      aRegIdx[nAllIdx] = ++pParse->nMem;
-      tdsqlite3VdbeAddOp2(v, OP_RowSetAdd, regRowSet, regOldRowid);
-    }
-  }else{
-    /* Read the PK of the current row into an array of registers. In
-    ** ONEPASS_OFF mode, serialize the array into a record and store it in
-    ** the ephemeral table. Or, in ONEPASS_SINGLE or MULTI mode, change
-    ** the OP_OpenEphemeral instruction to a Noop (the ephemeral table 
-    ** is not required) and leave the PK fields in the array of registers.  */
-    for(i=0; i<nPk; i++){
-      assert( pPk->aiColumn[i]>=0 );
-      tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur,
-                                      pPk->aiColumn[i], iPk+i);
-    }
-    if( eOnePass ){
-      if( addrOpen ) tdsqlite3VdbeChangeToNoop(v, addrOpen);
-      nKey = nPk;
-      regKey = iPk;
-    }else{
-      tdsqlite3VdbeAddOp4(v, OP_MakeRecord, iPk, nPk, regKey,
-                        tdsqlite3IndexAffinityStr(db, pPk), nPk);
-      tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, iEph, regKey, iPk, nPk);
-    }
-  }
-
-  if( pUpsert==0 ){
-    if( eOnePass!=ONEPASS_MULTI ){
-      tdsqlite3WhereEnd(pWInfo);
-    }
-  
-    if( !isView ){
-      int addrOnce = 0;
-  
-      /* Open every index that needs updating. */
-      if( eOnePass!=ONEPASS_OFF ){
-        if( aiCurOnePass[0]>=0 ) aToOpen[aiCurOnePass[0]-iBaseCur] = 0;
-        if( aiCurOnePass[1]>=0 ) aToOpen[aiCurOnePass[1]-iBaseCur] = 0;
-      }
-  
-      if( eOnePass==ONEPASS_MULTI && (nIdx-(aiCurOnePass[1]>=0))>0 ){
-        addrOnce = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-      }
-      tdsqlite3OpenTableAndIndices(pParse, pTab, OP_OpenWrite, 0, iBaseCur,
-                                 aToOpen, 0, 0);
-      if( addrOnce ) tdsqlite3VdbeJumpHere(v, addrOnce);
-    }
-  
-    /* Top of the update loop */
-    if( eOnePass!=ONEPASS_OFF ){
-      if( !isView && aiCurOnePass[0]!=iDataCur && aiCurOnePass[1]!=iDataCur ){
-        assert( pPk );
-        tdsqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, labelBreak, regKey,nKey);
-        VdbeCoverage(v);
-      }
-      if( eOnePass!=ONEPASS_SINGLE ){
-        labelContinue = tdsqlite3VdbeMakeLabel(pParse);
-      }
-      tdsqlite3VdbeAddOp2(v, OP_IsNull, pPk ? regKey : regOldRowid, labelBreak);
-      VdbeCoverageIf(v, pPk==0);
-      VdbeCoverageIf(v, pPk!=0);
-    }else if( pPk ){
-      labelContinue = tdsqlite3VdbeMakeLabel(pParse);
-      tdsqlite3VdbeAddOp2(v, OP_Rewind, iEph, labelBreak); VdbeCoverage(v);
-      addrTop = tdsqlite3VdbeAddOp2(v, OP_RowData, iEph, regKey);
-      tdsqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, labelContinue, regKey, 0);
-      VdbeCoverage(v);
-    }else{
-      labelContinue = tdsqlite3VdbeAddOp3(v, OP_RowSetRead, regRowSet,labelBreak,
-                               regOldRowid);
-      VdbeCoverage(v);
-      tdsqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, labelContinue, regOldRowid);
-      VdbeCoverage(v);
-    }
-  }
-
-  /* If the rowid value will change, set register regNewRowid to
-  ** contain the new value. If the rowid is not being modified,
-  ** then regNewRowid is the same register as regOldRowid, which is
-  ** already populated.  */
-  assert( chngKey || pTrigger || hasFK || regOldRowid==regNewRowid );
-  if( chngRowid ){
-    tdsqlite3ExprCode(pParse, pRowidExpr, regNewRowid);
-    tdsqlite3VdbeAddOp1(v, OP_MustBeInt, regNewRowid); VdbeCoverage(v);
-  }
-
-  /* Compute the old pre-UPDATE content of the row being changed, if that
-  ** information is needed */
-  if( chngPk || hasFK || pTrigger ){
-    u32 oldmask = (hasFK ? tdsqlite3FkOldmask(pParse, pTab) : 0);
-    oldmask |= tdsqlite3TriggerColmask(pParse, 
-        pTrigger, pChanges, 0, TRIGGER_BEFORE|TRIGGER_AFTER, pTab, onError
-    );
-    for(i=0; i<pTab->nCol; i++){
-      u32 colFlags = pTab->aCol[i].colFlags;
-      k = tdsqlite3TableColumnToStorage(pTab, i) + regOld;
-      if( oldmask==0xffffffff
-       || (i<32 && (oldmask & MASKBIT32(i))!=0)
-       || (colFlags & COLFLAG_PRIMKEY)!=0
-      ){
-        testcase(  oldmask!=0xffffffff && i==31 );
-        tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, i, k);
-      }else{
-        tdsqlite3VdbeAddOp2(v, OP_Null, 0, k);
-      }
-    }
-    if( chngRowid==0 && pPk==0 ){
-      tdsqlite3VdbeAddOp2(v, OP_Copy, regOldRowid, regNewRowid);
-    }
-  }
-
-  /* Populate the array of registers beginning at regNew with the new
-  ** row data. This array is used to check constants, create the new
-  ** table and index records, and as the values for any new.* references
-  ** made by triggers.
-  **
-  ** If there are one or more BEFORE triggers, then do not populate the
-  ** registers associated with columns that are (a) not modified by
-  ** this UPDATE statement and (b) not accessed by new.* references. The
-  ** values for registers not modified by the UPDATE must be reloaded from 
-  ** the database after the BEFORE triggers are fired anyway (as the trigger 
-  ** may have modified them). So not loading those that are not going to
-  ** be used eliminates some redundant opcodes.
-  */
-  newmask = tdsqlite3TriggerColmask(
-      pParse, pTrigger, pChanges, 1, TRIGGER_BEFORE, pTab, onError
-  );
-  for(i=0, k=regNew; i<pTab->nCol; i++, k++){
-    if( i==pTab->iPKey ){
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, k);
-    }else if( (pTab->aCol[i].colFlags & COLFLAG_GENERATED)!=0 ){
-      if( pTab->aCol[i].colFlags & COLFLAG_VIRTUAL ) k--;
-    }else{
-      j = aXRef[i];
-      if( j>=0 ){
-        tdsqlite3ExprCode(pParse, pChanges->a[j].pExpr, k);
-      }else if( 0==(tmask&TRIGGER_BEFORE) || i>31 || (newmask & MASKBIT32(i)) ){
-        /* This branch loads the value of a column that will not be changed 
-        ** into a register. This is done if there are no BEFORE triggers, or
-        ** if there are one or more BEFORE triggers that use this value via
-        ** a new.* reference in a trigger program.
-        */
-        testcase( i==31 );
-        testcase( i==32 );
-        tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, i, k);
-        bFinishSeek = 0;
-      }else{
-        tdsqlite3VdbeAddOp2(v, OP_Null, 0, k);
-      }
-    }
-  }
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-  if( pTab->tabFlags & TF_HasGenerated ){
-    testcase( pTab->tabFlags & TF_HasVirtual );
-    testcase( pTab->tabFlags & TF_HasStored );
-    tdsqlite3ComputeGeneratedColumns(pParse, regNew, pTab);
-  }
-#endif
-
-  /* Fire any BEFORE UPDATE triggers. This happens before constraints are
-  ** verified. One could argue that this is wrong.
-  */
-  if( tmask&TRIGGER_BEFORE ){
-    tdsqlite3TableAffinity(v, pTab, regNew);
-    tdsqlite3CodeRowTrigger(pParse, pTrigger, TK_UPDATE, pChanges, 
-        TRIGGER_BEFORE, pTab, regOldRowid, onError, labelContinue);
-
-    /* The row-trigger may have deleted the row being updated. In this
-    ** case, jump to the next row. No updates or AFTER triggers are 
-    ** required. This behavior - what happens when the row being updated
-    ** is deleted or renamed by a BEFORE trigger - is left undefined in the
-    ** documentation.
-    */
-    if( pPk ){
-      tdsqlite3VdbeAddOp4Int(v, OP_NotFound, iDataCur, labelContinue,regKey,nKey);
-      VdbeCoverage(v);
-    }else{
-      tdsqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, labelContinue, regOldRowid);
-      VdbeCoverage(v);
-    }
-
-    /* After-BEFORE-trigger-reload-loop:
-    ** If it did not delete it, the BEFORE trigger may still have modified 
-    ** some of the columns of the row being updated. Load the values for 
-    ** all columns not modified by the update statement into their registers
-    ** in case this has happened. Only unmodified columns are reloaded.
-    ** The values computed for modified columns use the values before the
-    ** BEFORE trigger runs.  See test case trigger1-18.0 (added 2018-04-26)
-    ** for an example.
-    */
-    for(i=0, k=regNew; i<pTab->nCol; i++, k++){
-      if( pTab->aCol[i].colFlags & COLFLAG_GENERATED ){
-        if( pTab->aCol[i].colFlags & COLFLAG_VIRTUAL ) k--;
-      }else if( aXRef[i]<0 && i!=pTab->iPKey ){
-        tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iDataCur, i, k);
-      }
-    }
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-    if( pTab->tabFlags & TF_HasGenerated ){
-      testcase( pTab->tabFlags & TF_HasVirtual );
-      testcase( pTab->tabFlags & TF_HasStored );
-      tdsqlite3ComputeGeneratedColumns(pParse, regNew, pTab);
-    }
-#endif 
-  }
-
-  if( !isView ){
-    /* Do constraint checks. */
-    assert( regOldRowid>0 );
-    tdsqlite3GenerateConstraintChecks(pParse, pTab, aRegIdx, iDataCur, iIdxCur,
-        regNewRowid, regOldRowid, chngKey, onError, labelContinue, &bReplace,
-        aXRef, 0);
-
-    /* If REPLACE conflict handling may have been used, or if the PK of the
-    ** row is changing, then the GenerateConstraintChecks() above may have
-    ** moved cursor iDataCur. Reseek it. */
-    if( bReplace || chngKey ){
-      if( pPk ){
-        tdsqlite3VdbeAddOp4Int(v, OP_NotFound,iDataCur,labelContinue,regKey,nKey);
-      }else{
-        tdsqlite3VdbeAddOp3(v, OP_NotExists, iDataCur, labelContinue,regOldRowid);
-      }
-      VdbeCoverageNeverTaken(v);
-    }
-
-    /* Do FK constraint checks. */
-    if( hasFK ){
-      tdsqlite3FkCheck(pParse, pTab, regOldRowid, 0, aXRef, chngKey);
-    }
-
-    /* Delete the index entries associated with the current record.  */
-    tdsqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur, aRegIdx, -1);
-
-    /* We must run the OP_FinishSeek opcode to resolve a prior
-    ** OP_DeferredSeek if there is any possibility that there have been
-    ** no OP_Column opcodes since the OP_DeferredSeek was issued.  But
-    ** we want to avoid the OP_FinishSeek if possible, as running it
-    ** costs CPU cycles. */
-    if( bFinishSeek ){
-      tdsqlite3VdbeAddOp1(v, OP_FinishSeek, iDataCur);
-    }
-
-    /* If changing the rowid value, or if there are foreign key constraints
-    ** to process, delete the old record. Otherwise, add a noop OP_Delete
-    ** to invoke the pre-update hook.
-    **
-    ** That (regNew==regnewRowid+1) is true is also important for the 
-    ** pre-update hook. If the caller invokes preupdate_new(), the returned
-    ** value is copied from memory cell (regNewRowid+1+iCol), where iCol
-    ** is the column index supplied by the user.
-    */
-    assert( regNew==regNewRowid+1 );
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-    tdsqlite3VdbeAddOp3(v, OP_Delete, iDataCur,
-        OPFLAG_ISUPDATE | ((hasFK>1 || chngKey) ? 0 : OPFLAG_ISNOOP),
-        regNewRowid
-    );
-    if( eOnePass==ONEPASS_MULTI ){
-      assert( hasFK==0 && chngKey==0 );
-      tdsqlite3VdbeChangeP5(v, OPFLAG_SAVEPOSITION);
-    }
-    if( !pParse->nested ){
-      tdsqlite3VdbeAppendP4(v, pTab, P4_TABLE);
-    }
-#else
-    if( hasFK>1 || chngKey ){
-      tdsqlite3VdbeAddOp2(v, OP_Delete, iDataCur, 0);
-    }
-#endif
-
-    if( hasFK ){
-      tdsqlite3FkCheck(pParse, pTab, 0, regNewRowid, aXRef, chngKey);
-    }
-  
-    /* Insert the new index entries and the new record. */
-    tdsqlite3CompleteInsertion(
-        pParse, pTab, iDataCur, iIdxCur, regNewRowid, aRegIdx, 
-        OPFLAG_ISUPDATE | (eOnePass==ONEPASS_MULTI ? OPFLAG_SAVEPOSITION : 0), 
-        0, 0
-    );
-
-    /* Do any ON CASCADE, SET NULL or SET DEFAULT operations required to
-    ** handle rows (possibly in other tables) that refer via a foreign key
-    ** to the row just updated. */ 
-    if( hasFK ){
-      tdsqlite3FkActions(pParse, pTab, pChanges, regOldRowid, aXRef, chngKey);
-    }
-  }
-
-  /* Increment the row counter 
-  */
-  if( regRowCount ){
-    tdsqlite3VdbeAddOp2(v, OP_AddImm, regRowCount, 1);
-  }
-
-  tdsqlite3CodeRowTrigger(pParse, pTrigger, TK_UPDATE, pChanges, 
-      TRIGGER_AFTER, pTab, regOldRowid, onError, labelContinue);
-
-  /* Repeat the above with the next record to be updated, until
-  ** all record selected by the WHERE clause have been updated.
-  */
-  if( eOnePass==ONEPASS_SINGLE ){
-    /* Nothing to do at end-of-loop for a single-pass */
-  }else if( eOnePass==ONEPASS_MULTI ){
-    tdsqlite3VdbeResolveLabel(v, labelContinue);
-    tdsqlite3WhereEnd(pWInfo);
-  }else if( pPk ){
-    tdsqlite3VdbeResolveLabel(v, labelContinue);
-    tdsqlite3VdbeAddOp2(v, OP_Next, iEph, addrTop); VdbeCoverage(v);
-  }else{
-    tdsqlite3VdbeGoto(v, labelContinue);
-  }
-  tdsqlite3VdbeResolveLabel(v, labelBreak);
-
-  /* Update the sqlite_sequence table by storing the content of the
-  ** maximum rowid counter values recorded while inserting into
-  ** autoincrement tables.
-  */
-  if( pParse->nested==0 && pParse->pTriggerTab==0 && pUpsert==0 ){
-    tdsqlite3AutoincrementEnd(pParse);
-  }
-
-  /*
-  ** Return the number of rows that were changed, if we are tracking
-  ** that information.
-  */
-  if( regRowCount ){
-    tdsqlite3VdbeAddOp2(v, OP_ResultRow, regRowCount, 1);
-    tdsqlite3VdbeSetNumCols(v, 1);
-    tdsqlite3VdbeSetColName(v, 0, COLNAME_NAME, "rows updated", SQLITE_STATIC);
-  }
-
-update_cleanup:
-  tdsqlite3AuthContextPop(&sContext);
-  tdsqlite3DbFree(db, aXRef); /* Also frees aRegIdx[] and aToOpen[] */
-  tdsqlite3SrcListDelete(db, pTabList);
-  tdsqlite3ExprListDelete(db, pChanges);
-  tdsqlite3ExprDelete(db, pWhere);
-#if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) 
-  tdsqlite3ExprListDelete(db, pOrderBy);
-  tdsqlite3ExprDelete(db, pLimit);
-#endif
-  return;
-}
-/* Make sure "isView" and other macros defined above are undefined. Otherwise
-** they may interfere with compilation of other functions in this file
-** (or in another file, if this file becomes part of the amalgamation).  */
-#ifdef isView
- #undef isView
-#endif
-#ifdef pTrigger
- #undef pTrigger
-#endif
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/*
-** Generate code for an UPDATE of a virtual table.
-**
-** There are two possible strategies - the default and the special 
-** "onepass" strategy. Onepass is only used if the virtual table 
-** implementation indicates that pWhere may match at most one row.
-**
-** The default strategy is to create an ephemeral table that contains
-** for each row to be changed:
-**
-**   (A)  The original rowid of that row.
-**   (B)  The revised rowid for the row.
-**   (C)  The content of every column in the row.
-**
-** Then loop through the contents of this ephemeral table executing a
-** VUpdate for each row. When finished, drop the ephemeral table.
-**
-** The "onepass" strategy does not use an ephemeral table. Instead, it
-** stores the same values (A, B and C above) in a register array and
-** makes a single invocation of VUpdate.
-*/
-static void updateVirtualTable(
-  Parse *pParse,       /* The parsing context */
-  SrcList *pSrc,       /* The virtual table to be modified */
-  Table *pTab,         /* The virtual table */
-  ExprList *pChanges,  /* The columns to change in the UPDATE statement */
-  Expr *pRowid,        /* Expression used to recompute the rowid */
-  int *aXRef,          /* Mapping from columns of pTab to entries in pChanges */
-  Expr *pWhere,        /* WHERE clause of the UPDATE statement */
-  int onError          /* ON CONFLICT strategy */
-){
-  Vdbe *v = pParse->pVdbe;  /* Virtual machine under construction */
-  int ephemTab;             /* Table holding the result of the SELECT */
-  int i;                    /* Loop counter */
-  tdsqlite3 *db = pParse->db; /* Database connection */
-  const char *pVTab = (const char*)tdsqlite3GetVTable(db, pTab);
-  WhereInfo *pWInfo;
-  int nArg = 2 + pTab->nCol;      /* Number of arguments to VUpdate */
-  int regArg;                     /* First register in VUpdate arg array */
-  int regRec;                     /* Register in which to assemble record */
-  int regRowid;                   /* Register for ephem table rowid */
-  int iCsr = pSrc->a[0].iCursor;  /* Cursor used for virtual table scan */
-  int aDummy[2];                  /* Unused arg for tdsqlite3WhereOkOnePass() */
-  int eOnePass;                   /* True to use onepass strategy */
-  int addr;                       /* Address of OP_OpenEphemeral */
-
-  /* Allocate nArg registers in which to gather the arguments for VUpdate. Then
-  ** create and open the ephemeral table in which the records created from
-  ** these arguments will be temporarily stored. */
-  assert( v );
-  ephemTab = pParse->nTab++;
-  addr= tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, ephemTab, nArg);
-  regArg = pParse->nMem + 1;
-  pParse->nMem += nArg;
-  regRec = ++pParse->nMem;
-  regRowid = ++pParse->nMem;
-
-  /* Start scanning the virtual table */
-  pWInfo = tdsqlite3WhereBegin(pParse, pSrc, pWhere, 0,0,WHERE_ONEPASS_DESIRED,0);
-  if( pWInfo==0 ) return;
-
-  /* Populate the argument registers. */
-  for(i=0; i<pTab->nCol; i++){
-    assert( (pTab->aCol[i].colFlags & COLFLAG_GENERATED)==0 );
-    if( aXRef[i]>=0 ){
-      tdsqlite3ExprCode(pParse, pChanges->a[aXRef[i]].pExpr, regArg+2+i);
-    }else{
-      tdsqlite3VdbeAddOp3(v, OP_VColumn, iCsr, i, regArg+2+i);
-      tdsqlite3VdbeChangeP5(v, OPFLAG_NOCHNG);/* Enable tdsqlite3_vtab_nochange() */
-    }
-  }
-  if( HasRowid(pTab) ){
-    tdsqlite3VdbeAddOp2(v, OP_Rowid, iCsr, regArg);
-    if( pRowid ){
-      tdsqlite3ExprCode(pParse, pRowid, regArg+1);
-    }else{
-      tdsqlite3VdbeAddOp2(v, OP_Rowid, iCsr, regArg+1);
-    }
-  }else{
-    Index *pPk;   /* PRIMARY KEY index */
-    i16 iPk;      /* PRIMARY KEY column */
-    pPk = tdsqlite3PrimaryKeyIndex(pTab);
-    assert( pPk!=0 );
-    assert( pPk->nKeyCol==1 );
-    iPk = pPk->aiColumn[0];
-    tdsqlite3VdbeAddOp3(v, OP_VColumn, iCsr, iPk, regArg);
-    tdsqlite3VdbeAddOp2(v, OP_SCopy, regArg+2+iPk, regArg+1);
-  }
-
-  eOnePass = tdsqlite3WhereOkOnePass(pWInfo, aDummy);
-
-  /* There is no ONEPASS_MULTI on virtual tables */
-  assert( eOnePass==ONEPASS_OFF || eOnePass==ONEPASS_SINGLE );
-
-  if( eOnePass ){
-    /* If using the onepass strategy, no-op out the OP_OpenEphemeral coded
-    ** above. */
-    tdsqlite3VdbeChangeToNoop(v, addr);
-    tdsqlite3VdbeAddOp1(v, OP_Close, iCsr);
-  }else{
-    /* Create a record from the argument register contents and insert it into
-    ** the ephemeral table. */
-    tdsqlite3MultiWrite(pParse);
-    tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regArg, nArg, regRec);
-#ifdef SQLITE_DEBUG
-    /* Signal an assert() within OP_MakeRecord that it is allowed to
-    ** accept no-change records with serial_type 10 */
-    tdsqlite3VdbeChangeP5(v, OPFLAG_NOCHNG_MAGIC);
-#endif
-    tdsqlite3VdbeAddOp2(v, OP_NewRowid, ephemTab, regRowid);
-    tdsqlite3VdbeAddOp3(v, OP_Insert, ephemTab, regRec, regRowid);
-  }
-
-
-  if( eOnePass==ONEPASS_OFF ){
-    /* End the virtual table scan */
-    tdsqlite3WhereEnd(pWInfo);
-
-    /* Begin scannning through the ephemeral table. */
-    addr = tdsqlite3VdbeAddOp1(v, OP_Rewind, ephemTab); VdbeCoverage(v);
-
-    /* Extract arguments from the current row of the ephemeral table and 
-    ** invoke the VUpdate method.  */
-    for(i=0; i<nArg; i++){
-      tdsqlite3VdbeAddOp3(v, OP_Column, ephemTab, i, regArg+i);
-    }
-  }
-  tdsqlite3VtabMakeWritable(pParse, pTab);
-  tdsqlite3VdbeAddOp4(v, OP_VUpdate, 0, nArg, regArg, pVTab, P4_VTAB);
-  tdsqlite3VdbeChangeP5(v, onError==OE_Default ? OE_Abort : onError);
-  tdsqlite3MayAbort(pParse);
-
-  /* End of the ephemeral table scan. Or, if using the onepass strategy,
-  ** jump to here if the scan visited zero rows. */
-  if( eOnePass==ONEPASS_OFF ){
-    tdsqlite3VdbeAddOp2(v, OP_Next, ephemTab, addr+1); VdbeCoverage(v);
-    tdsqlite3VdbeJumpHere(v, addr);
-    tdsqlite3VdbeAddOp2(v, OP_Close, ephemTab, 0);
-  }else{
-    tdsqlite3WhereEnd(pWInfo);
-  }
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-/************** End of update.c **********************************************/
-/************** Begin file upsert.c ******************************************/
-/*
-** 2018-04-12
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code to implement various aspects of UPSERT
-** processing and handling of the Upsert object.
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_UPSERT
-/*
-** Free a list of Upsert objects
-*/
-SQLITE_PRIVATE void tdsqlite3UpsertDelete(tdsqlite3 *db, Upsert *p){
-  if( p ){
-    tdsqlite3ExprListDelete(db, p->pUpsertTarget);
-    tdsqlite3ExprDelete(db, p->pUpsertTargetWhere);
-    tdsqlite3ExprListDelete(db, p->pUpsertSet);
-    tdsqlite3ExprDelete(db, p->pUpsertWhere);
-    tdsqlite3DbFree(db, p);
-  }
-}
-
-/*
-** Duplicate an Upsert object.
-*/
-SQLITE_PRIVATE Upsert *tdsqlite3UpsertDup(tdsqlite3 *db, Upsert *p){
-  if( p==0 ) return 0;
-  return tdsqlite3UpsertNew(db,
-           tdsqlite3ExprListDup(db, p->pUpsertTarget, 0),
-           tdsqlite3ExprDup(db, p->pUpsertTargetWhere, 0),
-           tdsqlite3ExprListDup(db, p->pUpsertSet, 0),
-           tdsqlite3ExprDup(db, p->pUpsertWhere, 0)
-         );
-}
-
-/*
-** Create a new Upsert object.
-*/
-SQLITE_PRIVATE Upsert *tdsqlite3UpsertNew(
-  tdsqlite3 *db,           /* Determines which memory allocator to use */
-  ExprList *pTarget,     /* Target argument to ON CONFLICT, or NULL */
-  Expr *pTargetWhere,    /* Optional WHERE clause on the target */
-  ExprList *pSet,        /* UPDATE columns, or NULL for a DO NOTHING */
-  Expr *pWhere           /* WHERE clause for the ON CONFLICT UPDATE */
-){
-  Upsert *pNew;
-  pNew = tdsqlite3DbMallocRaw(db, sizeof(Upsert));
-  if( pNew==0 ){
-    tdsqlite3ExprListDelete(db, pTarget);
-    tdsqlite3ExprDelete(db, pTargetWhere);
-    tdsqlite3ExprListDelete(db, pSet);
-    tdsqlite3ExprDelete(db, pWhere);
-    return 0;
-  }else{
-    pNew->pUpsertTarget = pTarget;
-    pNew->pUpsertTargetWhere = pTargetWhere;
-    pNew->pUpsertSet = pSet;
-    pNew->pUpsertWhere = pWhere;
-    pNew->pUpsertIdx = 0;
-  }
-  return pNew;
-}
-
-/*
-** Analyze the ON CONFLICT clause described by pUpsert.  Resolve all
-** symbols in the conflict-target.
-**
-** Return SQLITE_OK if everything works, or an error code is something
-** is wrong.
-*/
-SQLITE_PRIVATE int tdsqlite3UpsertAnalyzeTarget(
-  Parse *pParse,     /* The parsing context */
-  SrcList *pTabList, /* Table into which we are inserting */
-  Upsert *pUpsert    /* The ON CONFLICT clauses */
-){
-  Table *pTab;            /* That table into which we are inserting */
-  int rc;                 /* Result code */
-  int iCursor;            /* Cursor used by pTab */
-  Index *pIdx;            /* One of the indexes of pTab */
-  ExprList *pTarget;      /* The conflict-target clause */
-  Expr *pTerm;            /* One term of the conflict-target clause */
-  NameContext sNC;        /* Context for resolving symbolic names */
-  Expr sCol[2];           /* Index column converted into an Expr */
-
-  assert( pTabList->nSrc==1 );
-  assert( pTabList->a[0].pTab!=0 );
-  assert( pUpsert!=0 );
-  assert( pUpsert->pUpsertTarget!=0 );
-
-  /* Resolve all symbolic names in the conflict-target clause, which
-  ** includes both the list of columns and the optional partial-index
-  ** WHERE clause.
-  */
-  memset(&sNC, 0, sizeof(sNC));
-  sNC.pParse = pParse;
-  sNC.pSrcList = pTabList;
-  rc = tdsqlite3ResolveExprListNames(&sNC, pUpsert->pUpsertTarget);
-  if( rc ) return rc;
-  rc = tdsqlite3ResolveExprNames(&sNC, pUpsert->pUpsertTargetWhere);
-  if( rc ) return rc;
-
-  /* Check to see if the conflict target matches the rowid. */  
-  pTab = pTabList->a[0].pTab;
-  pTarget = pUpsert->pUpsertTarget;
-  iCursor = pTabList->a[0].iCursor;
-  if( HasRowid(pTab) 
-   && pTarget->nExpr==1
-   && (pTerm = pTarget->a[0].pExpr)->op==TK_COLUMN
-   && pTerm->iColumn==XN_ROWID
-  ){
-    /* The conflict-target is the rowid of the primary table */
-    assert( pUpsert->pUpsertIdx==0 );
-    return SQLITE_OK;
-  }
-
-  /* Initialize sCol[0..1] to be an expression parse tree for a
-  ** single column of an index.  The sCol[0] node will be the TK_COLLATE
-  ** operator and sCol[1] will be the TK_COLUMN operator.  Code below
-  ** will populate the specific collation and column number values
-  ** prior to comparing against the conflict-target expression.
-  */
-  memset(sCol, 0, sizeof(sCol));
-  sCol[0].op = TK_COLLATE;
-  sCol[0].pLeft = &sCol[1];
-  sCol[1].op = TK_COLUMN;
-  sCol[1].iTable = pTabList->a[0].iCursor;
-
-  /* Check for matches against other indexes */
-  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-    int ii, jj, nn;
-    if( !IsUniqueIndex(pIdx) ) continue;
-    if( pTarget->nExpr!=pIdx->nKeyCol ) continue;
-    if( pIdx->pPartIdxWhere ){
-      if( pUpsert->pUpsertTargetWhere==0 ) continue;
-      if( tdsqlite3ExprCompare(pParse, pUpsert->pUpsertTargetWhere,
-                             pIdx->pPartIdxWhere, iCursor)!=0 ){
-        continue;
-      }
-    }
-    nn = pIdx->nKeyCol;
-    for(ii=0; ii<nn; ii++){
-      Expr *pExpr;
-      sCol[0].u.zToken = (char*)pIdx->azColl[ii];
-      if( pIdx->aiColumn[ii]==XN_EXPR ){
-        assert( pIdx->aColExpr!=0 );
-        assert( pIdx->aColExpr->nExpr>ii );
-        pExpr = pIdx->aColExpr->a[ii].pExpr;
-        if( pExpr->op!=TK_COLLATE ){
-          sCol[0].pLeft = pExpr;
-          pExpr = &sCol[0];
-        }
-      }else{
-        sCol[0].pLeft = &sCol[1];
-        sCol[1].iColumn = pIdx->aiColumn[ii];
-        pExpr = &sCol[0];
-      }
-      for(jj=0; jj<nn; jj++){
-        if( tdsqlite3ExprCompare(pParse, pTarget->a[jj].pExpr, pExpr,iCursor)<2 ){
-          break;  /* Column ii of the index matches column jj of target */
-        }
-      }
-      if( jj>=nn ){
-        /* The target contains no match for column jj of the index */
-        break;
-      }
-    }
-    if( ii<nn ){
-      /* Column ii of the index did not match any term of the conflict target.
-      ** Continue the search with the next index. */
-      continue;
-    }
-    pUpsert->pUpsertIdx = pIdx;
-    return SQLITE_OK;
-  }
-  tdsqlite3ErrorMsg(pParse, "ON CONFLICT clause does not match any "
-                          "PRIMARY KEY or UNIQUE constraint");
-  return SQLITE_ERROR;
-}
-
-/*
-** Generate bytecode that does an UPDATE as part of an upsert.
-**
-** If pIdx is NULL, then the UNIQUE constraint that failed was the IPK.
-** In this case parameter iCur is a cursor open on the table b-tree that
-** currently points to the conflicting table row. Otherwise, if pIdx
-** is not NULL, then pIdx is the constraint that failed and iCur is a
-** cursor points to the conflicting row.
-*/
-SQLITE_PRIVATE void tdsqlite3UpsertDoUpdate(
-  Parse *pParse,        /* The parsing and code-generating context */
-  Upsert *pUpsert,      /* The ON CONFLICT clause for the upsert */
-  Table *pTab,          /* The table being updated */
-  Index *pIdx,          /* The UNIQUE constraint that failed */
-  int iCur              /* Cursor for pIdx (or pTab if pIdx==NULL) */
-){
-  Vdbe *v = pParse->pVdbe;
-  tdsqlite3 *db = pParse->db;
-  SrcList *pSrc;            /* FROM clause for the UPDATE */
-  int iDataCur;
-  int i;
-
-  assert( v!=0 );
-  assert( pUpsert!=0 );
-  VdbeNoopComment((v, "Begin DO UPDATE of UPSERT"));
-  iDataCur = pUpsert->iDataCur;
-  if( pIdx && iCur!=iDataCur ){
-    if( HasRowid(pTab) ){
-      int regRowid = tdsqlite3GetTempReg(pParse);
-      tdsqlite3VdbeAddOp2(v, OP_IdxRowid, iCur, regRowid);
-      tdsqlite3VdbeAddOp3(v, OP_SeekRowid, iDataCur, 0, regRowid);
-      VdbeCoverage(v);
-      tdsqlite3ReleaseTempReg(pParse, regRowid);
-    }else{
-      Index *pPk = tdsqlite3PrimaryKeyIndex(pTab);
-      int nPk = pPk->nKeyCol;
-      int iPk = pParse->nMem+1;
-      pParse->nMem += nPk;
-      for(i=0; i<nPk; i++){
-        int k;
-        assert( pPk->aiColumn[i]>=0 );
-        k = tdsqlite3TableColumnToIndex(pIdx, pPk->aiColumn[i]);
-        tdsqlite3VdbeAddOp3(v, OP_Column, iCur, k, iPk+i);
-        VdbeComment((v, "%s.%s", pIdx->zName,
-                    pTab->aCol[pPk->aiColumn[i]].zName));
-      }
-      tdsqlite3VdbeVerifyAbortable(v, OE_Abort);
-      i = tdsqlite3VdbeAddOp4Int(v, OP_Found, iDataCur, 0, iPk, nPk);
-      VdbeCoverage(v);
-      tdsqlite3VdbeAddOp4(v, OP_Halt, SQLITE_CORRUPT, OE_Abort, 0, 
-            "corrupt database", P4_STATIC);
-      tdsqlite3MayAbort(pParse);
-      tdsqlite3VdbeJumpHere(v, i);
-    }
-  }
-  /* pUpsert does not own pUpsertSrc - the outer INSERT statement does.  So
-  ** we have to make a copy before passing it down into tdsqlite3Update() */
-  pSrc = tdsqlite3SrcListDup(db, pUpsert->pUpsertSrc, 0);
-  /* excluded.* columns of type REAL need to be converted to a hard real */
-  for(i=0; i<pTab->nCol; i++){
-    if( pTab->aCol[i].affinity==SQLITE_AFF_REAL ){
-      tdsqlite3VdbeAddOp1(v, OP_RealAffinity, pUpsert->regData+i);
-    }
-  }
-  tdsqlite3Update(pParse, pSrc, pUpsert->pUpsertSet,
-      pUpsert->pUpsertWhere, OE_Abort, 0, 0, pUpsert);
-  pUpsert->pUpsertSet = 0;    /* Will have been deleted by tdsqlite3Update() */
-  pUpsert->pUpsertWhere = 0;  /* Will have been deleted by tdsqlite3Update() */
-  VdbeNoopComment((v, "End DO UPDATE of UPSERT"));
-}
-
-#endif /* SQLITE_OMIT_UPSERT */
-
-/************** End of upsert.c **********************************************/
-/************** Begin file vacuum.c ******************************************/
-/*
-** 2003 April 6
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code used to implement the VACUUM command.
-**
-** Most of the code in this file may be omitted by defining the
-** SQLITE_OMIT_VACUUM macro.
-*/
-/* #include "sqliteInt.h" */
-/* #include "vdbeInt.h" */
-
-#if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH)
-
-/*
-** Execute zSql on database db.
-**
-** If zSql returns rows, then each row will have exactly one
-** column.  (This will only happen if zSql begins with "SELECT".)
-** Take each row of result and call execSql() again recursively.
-**
-** The execSqlF() routine does the same thing, except it accepts
-** a format string as its third argument
-*/
-static int execSql(tdsqlite3 *db, char **pzErrMsg, const char *zSql){
-  tdsqlite3_stmt *pStmt;
-  int rc;
-
-  /* printf("SQL: [%s]\n", zSql); fflush(stdout); */
-  rc = tdsqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
-  if( rc!=SQLITE_OK ) return rc;
-  while( SQLITE_ROW==(rc = tdsqlite3_step(pStmt)) ){
-    const char *zSubSql = (const char*)tdsqlite3_column_text(pStmt,0);
-    assert( tdsqlite3_strnicmp(zSql,"SELECT",6)==0 );
-    /* The secondary SQL must be one of CREATE TABLE, CREATE INDEX,
-    ** or INSERT.  Historically there have been attacks that first
-    ** corrupt the sqlite_master.sql field with other kinds of statements
-    ** then run VACUUM to get those statements to execute at inappropriate
-    ** times. */
-    if( zSubSql
-     && (strncmp(zSubSql,"CRE",3)==0 || strncmp(zSubSql,"INS",3)==0)
-    ){
-      rc = execSql(db, pzErrMsg, zSubSql);
-      if( rc!=SQLITE_OK ) break;
-    }
-  }
-  assert( rc!=SQLITE_ROW );
-  if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-  if( rc ){
-    tdsqlite3SetString(pzErrMsg, db, tdsqlite3_errmsg(db));
-  }
-  (void)tdsqlite3_finalize(pStmt);
-  return rc;
-}
-static int execSqlF(tdsqlite3 *db, char **pzErrMsg, const char *zSql, ...){
-  char *z;
-  va_list ap;
-  int rc;
-  va_start(ap, zSql);
-  z = tdsqlite3VMPrintf(db, zSql, ap);
-  va_end(ap);
-  if( z==0 ) return SQLITE_NOMEM;
-  rc = execSql(db, pzErrMsg, z);
-  tdsqlite3DbFree(db, z);
-  return rc;
-}
-
-/*
-** The VACUUM command is used to clean up the database,
-** collapse free space, etc.  It is modelled after the VACUUM command
-** in PostgreSQL.  The VACUUM command works as follows:
-**
-**   (1)  Create a new transient database file
-**   (2)  Copy all content from the database being vacuumed into
-**        the new transient database file
-**   (3)  Copy content from the transient database back into the
-**        original database.
-**
-** The transient database requires temporary disk space approximately
-** equal to the size of the original database.  The copy operation of
-** step (3) requires additional temporary disk space approximately equal
-** to the size of the original database for the rollback journal.
-** Hence, temporary disk space that is approximately 2x the size of the
-** original database is required.  Every page of the database is written
-** approximately 3 times:  Once for step (2) and twice for step (3).
-** Two writes per page are required in step (3) because the original
-** database content must be written into the rollback journal prior to
-** overwriting the database with the vacuumed content.
-**
-** Only 1x temporary space and only 1x writes would be required if
-** the copy of step (3) were replaced by deleting the original database
-** and renaming the transient database as the original.  But that will
-** not work if other processes are attached to the original database.
-** And a power loss in between deleting the original and renaming the
-** transient would cause the database file to appear to be deleted
-** following reboot.
-*/
-SQLITE_PRIVATE void tdsqlite3Vacuum(Parse *pParse, Token *pNm, Expr *pInto){
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  int iDb = 0;
-  if( v==0 ) goto build_vacuum_end;
-  if( pParse->nErr ) goto build_vacuum_end;
-  if( pNm ){
-#ifndef SQLITE_BUG_COMPATIBLE_20160819
-    /* Default behavior:  Report an error if the argument to VACUUM is
-    ** not recognized */
-    iDb = tdsqlite3TwoPartName(pParse, pNm, pNm, &pNm);
-    if( iDb<0 ) goto build_vacuum_end;
-#else
-    /* When SQLITE_BUG_COMPATIBLE_20160819 is defined, unrecognized arguments
-    ** to VACUUM are silently ignored.  This is a back-out of a bug fix that
-    ** occurred on 2016-08-19 (https://www.sqlite.org/src/info/083f9e6270).
-    ** The buggy behavior is required for binary compatibility with some
-    ** legacy applications. */
-    iDb = tdsqlite3FindDb(pParse->db, pNm);
-    if( iDb<0 ) iDb = 0;
-#endif
-  }
-  if( iDb!=1 ){
-    int iIntoReg = 0;
-    if( pInto && tdsqlite3ResolveSelfReference(pParse,0,0,pInto,0)==0 ){
-      iIntoReg = ++pParse->nMem;
-      tdsqlite3ExprCode(pParse, pInto, iIntoReg);
-    }
-    tdsqlite3VdbeAddOp2(v, OP_Vacuum, iDb, iIntoReg);
-    tdsqlite3VdbeUsesBtree(v, iDb);
-  }
-build_vacuum_end:
-  tdsqlite3ExprDelete(pParse->db, pInto);
-  return;
-}
-
-/*
-** This routine implements the OP_Vacuum opcode of the VDBE.
-*/
-SQLITE_PRIVATE SQLITE_NOINLINE int tdsqlite3RunVacuum(
-  char **pzErrMsg,        /* Write error message here */
-  tdsqlite3 *db,            /* Database connection */
-  int iDb,                /* Which attached DB to vacuum */
-  tdsqlite3_value *pOut     /* Write results here, if not NULL. VACUUM INTO */
-){
-  int rc = SQLITE_OK;     /* Return code from service routines */
-  Btree *pMain;           /* The database being vacuumed */
-  Btree *pTemp;           /* The temporary database we vacuum into */
-  u32 saved_mDbFlags;     /* Saved value of db->mDbFlags */
-  u64 saved_flags;        /* Saved value of db->flags */
-  int saved_nChange;      /* Saved value of db->nChange */
-  int saved_nTotalChange; /* Saved value of db->nTotalChange */
-  u32 saved_openFlags;    /* Saved value of db->openFlags */
-  u8 saved_mTrace;        /* Saved trace settings */
-  Db *pDb = 0;            /* Database to detach at end of vacuum */
-  int isMemDb;            /* True if vacuuming a :memory: database */
-  int nRes;               /* Bytes of reserved space at the end of each page */
-  int nDb;                /* Number of attached databases */
-  const char *zDbMain;    /* Schema name of database to vacuum */
-  const char *zOut;       /* Name of output file */
-
-  if( !db->autoCommit ){
-    tdsqlite3SetString(pzErrMsg, db, "cannot VACUUM from within a transaction");
-    return SQLITE_ERROR; /* IMP: R-12218-18073 */
-  }
-  if( db->nVdbeActive>1 ){
-    tdsqlite3SetString(pzErrMsg, db,"cannot VACUUM - SQL statements in progress");
-    return SQLITE_ERROR; /* IMP: R-15610-35227 */
-  }
-  saved_openFlags = db->openFlags;
-  if( pOut ){
-    if( tdsqlite3_value_type(pOut)!=SQLITE_TEXT ){
-      tdsqlite3SetString(pzErrMsg, db, "non-text filename");
-      return SQLITE_ERROR;
-    }
-    zOut = (const char*)tdsqlite3_value_text(pOut);
-    db->openFlags &= ~SQLITE_OPEN_READONLY;
-    db->openFlags |= SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE;
-  }else{
-    zOut = "";
-  }
-
-  /* Save the current value of the database flags so that it can be 
-  ** restored before returning. Then set the writable-schema flag, and
-  ** disable CHECK and foreign key constraints.  */
-  saved_flags = db->flags;
-  saved_mDbFlags = db->mDbFlags;
-  saved_nChange = db->nChange;
-  saved_nTotalChange = db->nTotalChange;
-  saved_mTrace = db->mTrace;
-  db->flags |= SQLITE_WriteSchema | SQLITE_IgnoreChecks;
-  db->mDbFlags |= DBFLAG_PreferBuiltin | DBFLAG_Vacuum;
-  db->flags &= ~(u64)(SQLITE_ForeignKeys | SQLITE_ReverseOrder
-                   | SQLITE_Defensive | SQLITE_CountRows);
-  db->mTrace = 0;
-
-  zDbMain = db->aDb[iDb].zDbSName;
-  pMain = db->aDb[iDb].pBt;
-  isMemDb = tdsqlite3PagerIsMemdb(tdsqlite3BtreePager(pMain));
-
-  /* Attach the temporary database as 'vacuum_db'. The synchronous pragma
-  ** can be set to 'off' for this file, as it is not recovered if a crash
-  ** occurs anyway. The integrity of the database is maintained by a
-  ** (possibly synchronous) transaction opened on the main database before
-  ** tdsqlite3BtreeCopyFile() is called.
-  **
-  ** An optimisation would be to use a non-journaled pager.
-  ** (Later:) I tried setting "PRAGMA vacuum_db.journal_mode=OFF" but
-  ** that actually made the VACUUM run slower.  Very little journalling
-  ** actually occurs when doing a vacuum since the vacuum_db is initially
-  ** empty.  Only the journal header is written.  Apparently it takes more
-  ** time to parse and run the PRAGMA to turn journalling off than it does
-  ** to write the journal header file.
-  */
-  nDb = db->nDb;
-  rc = execSqlF(db, pzErrMsg, "ATTACH %Q AS vacuum_db", zOut);
-  db->openFlags = saved_openFlags;
-  if( rc!=SQLITE_OK ) goto end_of_vacuum;
-  assert( (db->nDb-1)==nDb );
-  pDb = &db->aDb[nDb];
-  assert( strcmp(pDb->zDbSName,"vacuum_db")==0 );
-  pTemp = pDb->pBt;
-  if( pOut ){
-    tdsqlite3_file *id = tdsqlite3PagerFile(tdsqlite3BtreePager(pTemp));
-    i64 sz = 0;
-    if( id->pMethods!=0 && (tdsqlite3OsFileSize(id, &sz)!=SQLITE_OK || sz>0) ){
-      rc = SQLITE_ERROR;
-      tdsqlite3SetString(pzErrMsg, db, "output file already exists");
-      goto end_of_vacuum;
-    }
-    db->mDbFlags |= DBFLAG_VacuumInto;
-  }
-  nRes = tdsqlite3BtreeGetOptimalReserve(pMain);
-
-  /* A VACUUM cannot change the pagesize of an encrypted database. */
-#ifdef SQLITE_HAS_CODEC
-  if( db->nextPagesize ){
-    extern void tdsqlite3CodecGetKey(tdsqlite3*, int, void**, int*);
-    int nKey;
-    char *zKey;
-    tdsqlite3CodecGetKey(db, iDb, (void**)&zKey, &nKey);
-    if( nKey ) db->nextPagesize = 0;
-  }
-#endif
-
-  tdsqlite3BtreeSetCacheSize(pTemp, db->aDb[iDb].pSchema->cache_size);
-  tdsqlite3BtreeSetSpillSize(pTemp, tdsqlite3BtreeSetSpillSize(pMain,0));
-  tdsqlite3BtreeSetPagerFlags(pTemp, PAGER_SYNCHRONOUS_OFF|PAGER_CACHESPILL);
-
-  /* Begin a transaction and take an exclusive lock on the main database
-  ** file. This is done before the tdsqlite3BtreeGetPageSize(pMain) call below,
-  ** to ensure that we do not try to change the page-size on a WAL database.
-  */
-  rc = execSql(db, pzErrMsg, "BEGIN");
-  if( rc!=SQLITE_OK ) goto end_of_vacuum;
-  rc = tdsqlite3BtreeBeginTrans(pMain, pOut==0 ? 2 : 0, 0);
-  if( rc!=SQLITE_OK ) goto end_of_vacuum;
-
-  /* Do not attempt to change the page size for a WAL database */
-  if( tdsqlite3PagerGetJournalMode(tdsqlite3BtreePager(pMain))
-                                               ==PAGER_JOURNALMODE_WAL ){
-    db->nextPagesize = 0;
-  }
-
-  if( tdsqlite3BtreeSetPageSize(pTemp, tdsqlite3BtreeGetPageSize(pMain), nRes, 0)
-   || (!isMemDb && tdsqlite3BtreeSetPageSize(pTemp, db->nextPagesize, nRes, 0))
-   || NEVER(db->mallocFailed)
-  ){
-    rc = SQLITE_NOMEM_BKPT;
-    goto end_of_vacuum;
-  }
-
-#ifndef SQLITE_OMIT_AUTOVACUUM
-  tdsqlite3BtreeSetAutoVacuum(pTemp, db->nextAutovac>=0 ? db->nextAutovac :
-                                           tdsqlite3BtreeGetAutoVacuum(pMain));
-#endif
-
-  /* Query the schema of the main database. Create a mirror schema
-  ** in the temporary database.
-  */
-  db->init.iDb = nDb; /* force new CREATE statements into vacuum_db */
-  rc = execSqlF(db, pzErrMsg,
-      "SELECT sql FROM \"%w\".sqlite_master"
-      " WHERE type='table'AND name<>'sqlite_sequence'"
-      " AND coalesce(rootpage,1)>0",
-      zDbMain
-  );
-  if( rc!=SQLITE_OK ) goto end_of_vacuum;
-  rc = execSqlF(db, pzErrMsg,
-      "SELECT sql FROM \"%w\".sqlite_master"
-      " WHERE type='index'",
-      zDbMain
-  );
-  if( rc!=SQLITE_OK ) goto end_of_vacuum;
-  db->init.iDb = 0;
-
-  /* Loop through the tables in the main database. For each, do
-  ** an "INSERT INTO vacuum_db.xxx SELECT * FROM main.xxx;" to copy
-  ** the contents to the temporary database.
-  */
-  rc = execSqlF(db, pzErrMsg,
-      "SELECT'INSERT INTO vacuum_db.'||quote(name)"
-      "||' SELECT*FROM\"%w\".'||quote(name)"
-      "FROM vacuum_db.sqlite_master "
-      "WHERE type='table'AND coalesce(rootpage,1)>0",
-      zDbMain
-  );
-  assert( (db->mDbFlags & DBFLAG_Vacuum)!=0 );
-  db->mDbFlags &= ~DBFLAG_Vacuum;
-  if( rc!=SQLITE_OK ) goto end_of_vacuum;
-
-  /* Copy the triggers, views, and virtual tables from the main database
-  ** over to the temporary database.  None of these objects has any
-  ** associated storage, so all we have to do is copy their entries
-  ** from the SQLITE_MASTER table.
-  */
-  rc = execSqlF(db, pzErrMsg,
-      "INSERT INTO vacuum_db.sqlite_master"
-      " SELECT*FROM \"%w\".sqlite_master"
-      " WHERE type IN('view','trigger')"
-      " OR(type='table'AND rootpage=0)",
-      zDbMain
-  );
-  if( rc ) goto end_of_vacuum;
-
-  /* At this point, there is a write transaction open on both the 
-  ** vacuum database and the main database. Assuming no error occurs,
-  ** both transactions are closed by this block - the main database
-  ** transaction by tdsqlite3BtreeCopyFile() and the other by an explicit
-  ** call to tdsqlite3BtreeCommit().
-  */
-  {
-    u32 meta;
-    int i;
-
-    /* This array determines which meta meta values are preserved in the
-    ** vacuum.  Even entries are the meta value number and odd entries
-    ** are an increment to apply to the meta value after the vacuum.
-    ** The increment is used to increase the schema cookie so that other
-    ** connections to the same database will know to reread the schema.
-    */
-    static const unsigned char aCopy[] = {
-       BTREE_SCHEMA_VERSION,     1,  /* Add one to the old schema cookie */
-       BTREE_DEFAULT_CACHE_SIZE, 0,  /* Preserve the default page cache size */
-       BTREE_TEXT_ENCODING,      0,  /* Preserve the text encoding */
-       BTREE_USER_VERSION,       0,  /* Preserve the user version */
-       BTREE_APPLICATION_ID,     0,  /* Preserve the application id */
-    };
-
-    assert( 1==tdsqlite3BtreeIsInTrans(pTemp) );
-    assert( pOut!=0 || 1==tdsqlite3BtreeIsInTrans(pMain) );
-
-    /* Copy Btree meta values */
-    for(i=0; i<ArraySize(aCopy); i+=2){
-      /* GetMeta() and UpdateMeta() cannot fail in this context because
-      ** we already have page 1 loaded into cache and marked dirty. */
-      tdsqlite3BtreeGetMeta(pMain, aCopy[i], &meta);
-      rc = tdsqlite3BtreeUpdateMeta(pTemp, aCopy[i], meta+aCopy[i+1]);
-      if( NEVER(rc!=SQLITE_OK) ) goto end_of_vacuum;
-    }
-
-    if( pOut==0 ){
-      rc = tdsqlite3BtreeCopyFile(pMain, pTemp);
-    }
-    if( rc!=SQLITE_OK ) goto end_of_vacuum;
-    rc = tdsqlite3BtreeCommit(pTemp);
-    if( rc!=SQLITE_OK ) goto end_of_vacuum;
-#ifndef SQLITE_OMIT_AUTOVACUUM
-    if( pOut==0 ){
-      tdsqlite3BtreeSetAutoVacuum(pMain, tdsqlite3BtreeGetAutoVacuum(pTemp));
-    }
-#endif
-  }
-
-  assert( rc==SQLITE_OK );
-  if( pOut==0 ){
-    rc = tdsqlite3BtreeSetPageSize(pMain, tdsqlite3BtreeGetPageSize(pTemp), nRes,1);
-  }
-
-end_of_vacuum:
-  /* Restore the original value of db->flags */
-  db->init.iDb = 0;
-  db->mDbFlags = saved_mDbFlags;
-  db->flags = saved_flags;
-  db->nChange = saved_nChange;
-  db->nTotalChange = saved_nTotalChange;
-  db->mTrace = saved_mTrace;
-  tdsqlite3BtreeSetPageSize(pMain, -1, -1, 1);
-
-  /* Currently there is an SQL level transaction open on the vacuum
-  ** database. No locks are held on any other files (since the main file
-  ** was committed at the btree level). So it safe to end the transaction
-  ** by manually setting the autoCommit flag to true and detaching the
-  ** vacuum database. The vacuum_db journal file is deleted when the pager
-  ** is closed by the DETACH.
-  */
-  db->autoCommit = 1;
-
-  if( pDb ){
-    tdsqlite3BtreeClose(pDb->pBt);
-    pDb->pBt = 0;
-    pDb->pSchema = 0;
-  }
-
-  /* This both clears the schemas and reduces the size of the db->aDb[]
-  ** array. */ 
-  tdsqlite3ResetAllSchemasOfConnection(db);
-
-  return rc;
-}
-
-#endif  /* SQLITE_OMIT_VACUUM && SQLITE_OMIT_ATTACH */
-
-/************** End of vacuum.c **********************************************/
-/************** Begin file vtab.c ********************************************/
-/*
-** 2006 June 10
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code used to help implement virtual tables.
-*/
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/* #include "sqliteInt.h" */
-
-/*
-** Before a virtual table xCreate() or xConnect() method is invoked, the
-** sqlite3.pVtabCtx member variable is set to point to an instance of
-** this struct allocated on the stack. It is used by the implementation of 
-** the tdsqlite3_declare_vtab() and tdsqlite3_vtab_config() APIs, both of which
-** are invoked only from within xCreate and xConnect methods.
-*/
-struct VtabCtx {
-  VTable *pVTable;    /* The virtual table being constructed */
-  Table *pTab;        /* The Table object to which the virtual table belongs */
-  VtabCtx *pPrior;    /* Parent context (if any) */
-  int bDeclared;      /* True after tdsqlite3_declare_vtab() is called */
-};
-
-/*
-** Construct and install a Module object for a virtual table.  When this
-** routine is called, it is guaranteed that all appropriate locks are held
-** and the module is not already part of the connection.
-**
-** If there already exists a module with zName, replace it with the new one.
-** If pModule==0, then delete the module zName if it exists.
-*/
-SQLITE_PRIVATE Module *tdsqlite3VtabCreateModule(
-  tdsqlite3 *db,                    /* Database in which module is registered */
-  const char *zName,              /* Name assigned to this module */
-  const tdsqlite3_module *pModule,  /* The definition of the module */
-  void *pAux,                     /* Context pointer for xCreate/xConnect */
-  void (*xDestroy)(void *)        /* Module destructor function */
-){
-  Module *pMod;
-  Module *pDel;
-  char *zCopy;
-  if( pModule==0 ){
-    zCopy = (char*)zName;
-    pMod = 0;
-  }else{
-    int nName = tdsqlite3Strlen30(zName);
-    pMod = (Module *)tdsqlite3Malloc(sizeof(Module) + nName + 1);
-    if( pMod==0 ){
-      tdsqlite3OomFault(db);
-      return 0;
-    }
-    zCopy = (char *)(&pMod[1]);
-    memcpy(zCopy, zName, nName+1);
-    pMod->zName = zCopy;
-    pMod->pModule = pModule;
-    pMod->pAux = pAux;
-    pMod->xDestroy = xDestroy;
-    pMod->pEpoTab = 0;
-    pMod->nRefModule = 1;
-  }
-  pDel = (Module *)tdsqlite3HashInsert(&db->aModule,zCopy,(void*)pMod);
-  if( pDel ){
-    if( pDel==pMod ){
-      tdsqlite3OomFault(db);
-      tdsqlite3DbFree(db, pDel);
-      pMod = 0;
-    }else{
-      tdsqlite3VtabEponymousTableClear(db, pDel);
-      tdsqlite3VtabModuleUnref(db, pDel);
-    }
-  }
-  return pMod;
-}
-
-/*
-** The actual function that does the work of creating a new module.
-** This function implements the tdsqlite3_create_module() and
-** tdsqlite3_create_module_v2() interfaces.
-*/
-static int createModule(
-  tdsqlite3 *db,                    /* Database in which module is registered */
-  const char *zName,              /* Name assigned to this module */
-  const tdsqlite3_module *pModule,  /* The definition of the module */
-  void *pAux,                     /* Context pointer for xCreate/xConnect */
-  void (*xDestroy)(void *)        /* Module destructor function */
-){
-  int rc = SQLITE_OK;
-
-  tdsqlite3_mutex_enter(db->mutex);
-  (void)tdsqlite3VtabCreateModule(db, zName, pModule, pAux, xDestroy);
-  rc = tdsqlite3ApiExit(db, rc);
-  if( rc!=SQLITE_OK && xDestroy ) xDestroy(pAux);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-
-/*
-** External API function used to create a new virtual-table module.
-*/
-SQLITE_API int tdsqlite3_create_module(
-  tdsqlite3 *db,                    /* Database in which module is registered */
-  const char *zName,              /* Name assigned to this module */
-  const tdsqlite3_module *pModule,  /* The definition of the module */
-  void *pAux                      /* Context pointer for xCreate/xConnect */
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zName==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  return createModule(db, zName, pModule, pAux, 0);
-}
-
-/*
-** External API function used to create a new virtual-table module.
-*/
-SQLITE_API int tdsqlite3_create_module_v2(
-  tdsqlite3 *db,                    /* Database in which module is registered */
-  const char *zName,              /* Name assigned to this module */
-  const tdsqlite3_module *pModule,  /* The definition of the module */
-  void *pAux,                     /* Context pointer for xCreate/xConnect */
-  void (*xDestroy)(void *)        /* Module destructor function */
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zName==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  return createModule(db, zName, pModule, pAux, xDestroy);
-}
-
-/*
-** External API to drop all virtual-table modules, except those named
-** on the azNames list.
-*/
-SQLITE_API int tdsqlite3_drop_modules(tdsqlite3 *db, const char** azNames){
-  HashElem *pThis, *pNext;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  for(pThis=sqliteHashFirst(&db->aModule); pThis; pThis=pNext){
-    Module *pMod = (Module*)sqliteHashData(pThis);
-    pNext = sqliteHashNext(pThis);
-    if( azNames ){
-      int ii;
-      for(ii=0; azNames[ii]!=0 && strcmp(azNames[ii],pMod->zName)!=0; ii++){}
-      if( azNames[ii]!=0 ) continue;
-    }
-    createModule(db, pMod->zName, 0, 0, 0);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Decrement the reference count on a Module object.  Destroy the
-** module when the reference count reaches zero.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabModuleUnref(tdsqlite3 *db, Module *pMod){
-  assert( pMod->nRefModule>0 );
-  pMod->nRefModule--;
-  if( pMod->nRefModule==0 ){
-    if( pMod->xDestroy ){
-      pMod->xDestroy(pMod->pAux);
-    }
-    assert( pMod->pEpoTab==0 );
-    tdsqlite3DbFree(db, pMod);
-  }
-}
-
-/*
-** Lock the virtual table so that it cannot be disconnected.
-** Locks nest.  Every lock should have a corresponding unlock.
-** If an unlock is omitted, resources leaks will occur.  
-**
-** If a disconnect is attempted while a virtual table is locked,
-** the disconnect is deferred until all locks have been removed.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabLock(VTable *pVTab){
-  pVTab->nRef++;
-}
-
-
-/*
-** pTab is a pointer to a Table structure representing a virtual-table.
-** Return a pointer to the VTable object used by connection db to access 
-** this virtual-table, if one has been created, or NULL otherwise.
-*/
-SQLITE_PRIVATE VTable *tdsqlite3GetVTable(tdsqlite3 *db, Table *pTab){
-  VTable *pVtab;
-  assert( IsVirtual(pTab) );
-  for(pVtab=pTab->pVTable; pVtab && pVtab->db!=db; pVtab=pVtab->pNext);
-  return pVtab;
-}
-
-/*
-** Decrement the ref-count on a virtual table object. When the ref-count
-** reaches zero, call the xDisconnect() method to delete the object.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabUnlock(VTable *pVTab){
-  tdsqlite3 *db = pVTab->db;
-
-  assert( db );
-  assert( pVTab->nRef>0 );
-  assert( db->magic==SQLITE_MAGIC_OPEN || db->magic==SQLITE_MAGIC_ZOMBIE );
-
-  pVTab->nRef--;
-  if( pVTab->nRef==0 ){
-    tdsqlite3_vtab *p = pVTab->pVtab;
-    tdsqlite3VtabModuleUnref(pVTab->db, pVTab->pMod);
-    if( p ){
-      p->pModule->xDisconnect(p);
-    }
-    tdsqlite3DbFree(db, pVTab);
-  }
-}
-
-/*
-** Table p is a virtual table. This function moves all elements in the
-** p->pVTable list to the sqlite3.pDisconnect lists of their associated
-** database connections to be disconnected at the next opportunity. 
-** Except, if argument db is not NULL, then the entry associated with
-** connection db is left in the p->pVTable list.
-*/
-static VTable *vtabDisconnectAll(tdsqlite3 *db, Table *p){
-  VTable *pRet = 0;
-  VTable *pVTable = p->pVTable;
-  p->pVTable = 0;
-
-  /* Assert that the mutex (if any) associated with the BtShared database 
-  ** that contains table p is held by the caller. See header comments 
-  ** above function tdsqlite3VtabUnlockList() for an explanation of why
-  ** this makes it safe to access the sqlite3.pDisconnect list of any
-  ** database connection that may have an entry in the p->pVTable list.
-  */
-  assert( db==0 || tdsqlite3SchemaMutexHeld(db, 0, p->pSchema) );
-
-  while( pVTable ){
-    tdsqlite3 *db2 = pVTable->db;
-    VTable *pNext = pVTable->pNext;
-    assert( db2 );
-    if( db2==db ){
-      pRet = pVTable;
-      p->pVTable = pRet;
-      pRet->pNext = 0;
-    }else{
-      pVTable->pNext = db2->pDisconnect;
-      db2->pDisconnect = pVTable;
-    }
-    pVTable = pNext;
-  }
-
-  assert( !db || pRet );
-  return pRet;
-}
-
-/*
-** Table *p is a virtual table. This function removes the VTable object
-** for table *p associated with database connection db from the linked
-** list in p->pVTab. It also decrements the VTable ref count. This is
-** used when closing database connection db to free all of its VTable
-** objects without disturbing the rest of the Schema object (which may
-** be being used by other shared-cache connections).
-*/
-SQLITE_PRIVATE void tdsqlite3VtabDisconnect(tdsqlite3 *db, Table *p){
-  VTable **ppVTab;
-
-  assert( IsVirtual(p) );
-  assert( tdsqlite3BtreeHoldsAllMutexes(db) );
-  assert( tdsqlite3_mutex_held(db->mutex) );
-
-  for(ppVTab=&p->pVTable; *ppVTab; ppVTab=&(*ppVTab)->pNext){
-    if( (*ppVTab)->db==db  ){
-      VTable *pVTab = *ppVTab;
-      *ppVTab = pVTab->pNext;
-      tdsqlite3VtabUnlock(pVTab);
-      break;
-    }
-  }
-}
-
-
-/*
-** Disconnect all the virtual table objects in the sqlite3.pDisconnect list.
-**
-** This function may only be called when the mutexes associated with all
-** shared b-tree databases opened using connection db are held by the 
-** caller. This is done to protect the sqlite3.pDisconnect list. The
-** sqlite3.pDisconnect list is accessed only as follows:
-**
-**   1) By this function. In this case, all BtShared mutexes and the mutex
-**      associated with the database handle itself must be held.
-**
-**   2) By function vtabDisconnectAll(), when it adds a VTable entry to
-**      the sqlite3.pDisconnect list. In this case either the BtShared mutex
-**      associated with the database the virtual table is stored in is held
-**      or, if the virtual table is stored in a non-sharable database, then
-**      the database handle mutex is held.
-**
-** As a result, a sqlite3.pDisconnect cannot be accessed simultaneously 
-** by multiple threads. It is thread-safe.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabUnlockList(tdsqlite3 *db){
-  VTable *p = db->pDisconnect;
-
-  assert( tdsqlite3BtreeHoldsAllMutexes(db) );
-  assert( tdsqlite3_mutex_held(db->mutex) );
-
-  if( p ){
-    db->pDisconnect = 0;
-    tdsqlite3ExpirePreparedStatements(db, 0);
-    do {
-      VTable *pNext = p->pNext;
-      tdsqlite3VtabUnlock(p);
-      p = pNext;
-    }while( p );
-  }
-}
-
-/*
-** Clear any and all virtual-table information from the Table record.
-** This routine is called, for example, just before deleting the Table
-** record.
-**
-** Since it is a virtual-table, the Table structure contains a pointer
-** to the head of a linked list of VTable structures. Each VTable 
-** structure is associated with a single tdsqlite3* user of the schema.
-** The reference count of the VTable structure associated with database 
-** connection db is decremented immediately (which may lead to the 
-** structure being xDisconnected and free). Any other VTable structures
-** in the list are moved to the sqlite3.pDisconnect list of the associated 
-** database connection.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabClear(tdsqlite3 *db, Table *p){
-  if( !db || db->pnBytesFreed==0 ) vtabDisconnectAll(0, p);
-  if( p->azModuleArg ){
-    int i;
-    for(i=0; i<p->nModuleArg; i++){
-      if( i!=1 ) tdsqlite3DbFree(db, p->azModuleArg[i]);
-    }
-    tdsqlite3DbFree(db, p->azModuleArg);
-  }
-}
-
-/*
-** Add a new module argument to pTable->azModuleArg[].
-** The string is not copied - the pointer is stored.  The
-** string will be freed automatically when the table is
-** deleted.
-*/
-static void addModuleArgument(Parse *pParse, Table *pTable, char *zArg){
-  tdsqlite3_int64 nBytes = sizeof(char *)*(2+pTable->nModuleArg);
-  char **azModuleArg;
-  tdsqlite3 *db = pParse->db;
-  if( pTable->nModuleArg+3>=db->aLimit[SQLITE_LIMIT_COLUMN] ){
-    tdsqlite3ErrorMsg(pParse, "too many columns on %s", pTable->zName);
-  }
-  azModuleArg = tdsqlite3DbRealloc(db, pTable->azModuleArg, nBytes);
-  if( azModuleArg==0 ){
-    tdsqlite3DbFree(db, zArg);
-  }else{
-    int i = pTable->nModuleArg++;
-    azModuleArg[i] = zArg;
-    azModuleArg[i+1] = 0;
-    pTable->azModuleArg = azModuleArg;
-  }
-}
-
-/*
-** The parser calls this routine when it first sees a CREATE VIRTUAL TABLE
-** statement.  The module name has been parsed, but the optional list
-** of parameters that follow the module name are still pending.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabBeginParse(
-  Parse *pParse,        /* Parsing context */
-  Token *pName1,        /* Name of new table, or database name */
-  Token *pName2,        /* Name of new table or NULL */
-  Token *pModuleName,   /* Name of the module for the virtual table */
-  int ifNotExists       /* No error if the table already exists */
-){
-  Table *pTable;        /* The new virtual table */
-  tdsqlite3 *db;          /* Database connection */
-
-  tdsqlite3StartTable(pParse, pName1, pName2, 0, 0, 1, ifNotExists);
-  pTable = pParse->pNewTable;
-  if( pTable==0 ) return;
-  assert( 0==pTable->pIndex );
-
-  db = pParse->db;
-
-  assert( pTable->nModuleArg==0 );
-  addModuleArgument(pParse, pTable, tdsqlite3NameFromToken(db, pModuleName));
-  addModuleArgument(pParse, pTable, 0);
-  addModuleArgument(pParse, pTable, tdsqlite3DbStrDup(db, pTable->zName));
-  assert( (pParse->sNameToken.z==pName2->z && pName2->z!=0)
-       || (pParse->sNameToken.z==pName1->z && pName2->z==0)
-  );
-  pParse->sNameToken.n = (int)(
-      &pModuleName->z[pModuleName->n] - pParse->sNameToken.z
-  );
-
-#ifndef SQLITE_OMIT_AUTHORIZATION
-  /* Creating a virtual table invokes the authorization callback twice.
-  ** The first invocation, to obtain permission to INSERT a row into the
-  ** sqlite_master table, has already been made by tdsqlite3StartTable().
-  ** The second call, to obtain permission to create the table, is made now.
-  */
-  if( pTable->azModuleArg ){
-    int iDb = tdsqlite3SchemaToIndex(db, pTable->pSchema);
-    assert( iDb>=0 ); /* The database the table is being created in */
-    tdsqlite3AuthCheck(pParse, SQLITE_CREATE_VTABLE, pTable->zName, 
-            pTable->azModuleArg[0], pParse->db->aDb[iDb].zDbSName);
-  }
-#endif
-}
-
-/*
-** This routine takes the module argument that has been accumulating
-** in pParse->zArg[] and appends it to the list of arguments on the
-** virtual table currently under construction in pParse->pTable.
-*/
-static void addArgumentToVtab(Parse *pParse){
-  if( pParse->sArg.z && pParse->pNewTable ){
-    const char *z = (const char*)pParse->sArg.z;
-    int n = pParse->sArg.n;
-    tdsqlite3 *db = pParse->db;
-    addModuleArgument(pParse, pParse->pNewTable, tdsqlite3DbStrNDup(db, z, n));
-  }
-}
-
-/*
-** The parser calls this routine after the CREATE VIRTUAL TABLE statement
-** has been completely parsed.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
-  Table *pTab = pParse->pNewTable;  /* The table being constructed */
-  tdsqlite3 *db = pParse->db;         /* The database connection */
-
-  if( pTab==0 ) return;
-  addArgumentToVtab(pParse);
-  pParse->sArg.z = 0;
-  if( pTab->nModuleArg<1 ) return;
-  
-  /* If the CREATE VIRTUAL TABLE statement is being entered for the
-  ** first time (in other words if the virtual table is actually being
-  ** created now instead of just being read out of sqlite_master) then
-  ** do additional initialization work and store the statement text
-  ** in the sqlite_master table.
-  */
-  if( !db->init.busy ){
-    char *zStmt;
-    char *zWhere;
-    int iDb;
-    int iReg;
-    Vdbe *v;
-
-    tdsqlite3MayAbort(pParse);
-
-    /* Compute the complete text of the CREATE VIRTUAL TABLE statement */
-    if( pEnd ){
-      pParse->sNameToken.n = (int)(pEnd->z - pParse->sNameToken.z) + pEnd->n;
-    }
-    zStmt = tdsqlite3MPrintf(db, "CREATE VIRTUAL TABLE %T", &pParse->sNameToken);
-
-    /* A slot for the record has already been allocated in the 
-    ** SQLITE_MASTER table.  We just need to update that slot with all
-    ** the information we've collected.  
-    **
-    ** The VM register number pParse->regRowid holds the rowid of an
-    ** entry in the sqlite_master table tht was created for this vtab
-    ** by tdsqlite3StartTable().
-    */
-    iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-    tdsqlite3NestedParse(pParse,
-      "UPDATE %Q.%s "
-         "SET type='table', name=%Q, tbl_name=%Q, rootpage=0, sql=%Q "
-       "WHERE rowid=#%d",
-      db->aDb[iDb].zDbSName, MASTER_NAME,
-      pTab->zName,
-      pTab->zName,
-      zStmt,
-      pParse->regRowid
-    );
-    v = tdsqlite3GetVdbe(pParse);
-    tdsqlite3ChangeCookie(pParse, iDb);
-
-    tdsqlite3VdbeAddOp0(v, OP_Expire);
-    zWhere = tdsqlite3MPrintf(db, "name=%Q AND sql=%Q", pTab->zName, zStmt);
-    tdsqlite3VdbeAddParseSchemaOp(v, iDb, zWhere);
-    tdsqlite3DbFree(db, zStmt);
-
-    iReg = ++pParse->nMem;
-    tdsqlite3VdbeLoadString(v, iReg, pTab->zName);
-    tdsqlite3VdbeAddOp2(v, OP_VCreate, iDb, iReg);
-  }
-
-  /* If we are rereading the sqlite_master table create the in-memory
-  ** record of the table. The xConnect() method is not called until
-  ** the first time the virtual table is used in an SQL statement. This
-  ** allows a schema that contains virtual tables to be loaded before
-  ** the required virtual table implementations are registered.  */
-  else {
-    Table *pOld;
-    Schema *pSchema = pTab->pSchema;
-    const char *zName = pTab->zName;
-    assert( tdsqlite3SchemaMutexHeld(db, 0, pSchema) );
-    pOld = tdsqlite3HashInsert(&pSchema->tblHash, zName, pTab);
-    if( pOld ){
-      tdsqlite3OomFault(db);
-      assert( pTab==pOld );  /* Malloc must have failed inside HashInsert() */
-      return;
-    }
-    pParse->pNewTable = 0;
-  }
-}
-
-/*
-** The parser calls this routine when it sees the first token
-** of an argument to the module name in a CREATE VIRTUAL TABLE statement.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabArgInit(Parse *pParse){
-  addArgumentToVtab(pParse);
-  pParse->sArg.z = 0;
-  pParse->sArg.n = 0;
-}
-
-/*
-** The parser calls this routine for each token after the first token
-** in an argument to the module name in a CREATE VIRTUAL TABLE statement.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabArgExtend(Parse *pParse, Token *p){
-  Token *pArg = &pParse->sArg;
-  if( pArg->z==0 ){
-    pArg->z = p->z;
-    pArg->n = p->n;
-  }else{
-    assert(pArg->z <= p->z);
-    pArg->n = (int)(&p->z[p->n] - pArg->z);
-  }
-}
-
-/*
-** Invoke a virtual table constructor (either xCreate or xConnect). The
-** pointer to the function to invoke is passed as the fourth parameter
-** to this procedure.
-*/
-static int vtabCallConstructor(
-  tdsqlite3 *db, 
-  Table *pTab,
-  Module *pMod,
-  int (*xConstruct)(tdsqlite3*,void*,int,const char*const*,tdsqlite3_vtab**,char**),
-  char **pzErr
-){
-  VtabCtx sCtx;
-  VTable *pVTable;
-  int rc;
-  const char *const*azArg = (const char *const*)pTab->azModuleArg;
-  int nArg = pTab->nModuleArg;
-  char *zErr = 0;
-  char *zModuleName;
-  int iDb;
-  VtabCtx *pCtx;
-
-  /* Check that the virtual-table is not already being initialized */
-  for(pCtx=db->pVtabCtx; pCtx; pCtx=pCtx->pPrior){
-    if( pCtx->pTab==pTab ){
-      *pzErr = tdsqlite3MPrintf(db, 
-          "vtable constructor called recursively: %s", pTab->zName
-      );
-      return SQLITE_LOCKED;
-    }
-  }
-
-  zModuleName = tdsqlite3DbStrDup(db, pTab->zName);
-  if( !zModuleName ){
-    return SQLITE_NOMEM_BKPT;
-  }
-
-  pVTable = tdsqlite3MallocZero(sizeof(VTable));
-  if( !pVTable ){
-    tdsqlite3OomFault(db);
-    tdsqlite3DbFree(db, zModuleName);
-    return SQLITE_NOMEM_BKPT;
-  }
-  pVTable->db = db;
-  pVTable->pMod = pMod;
-  pVTable->eVtabRisk = SQLITE_VTABRISK_Normal;
-
-  iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-  pTab->azModuleArg[1] = db->aDb[iDb].zDbSName;
-
-  /* Invoke the virtual table constructor */
-  assert( &db->pVtabCtx );
-  assert( xConstruct );
-  sCtx.pTab = pTab;
-  sCtx.pVTable = pVTable;
-  sCtx.pPrior = db->pVtabCtx;
-  sCtx.bDeclared = 0;
-  db->pVtabCtx = &sCtx;
-  rc = xConstruct(db, pMod->pAux, nArg, azArg, &pVTable->pVtab, &zErr);
-  db->pVtabCtx = sCtx.pPrior;
-  if( rc==SQLITE_NOMEM ) tdsqlite3OomFault(db);
-  assert( sCtx.pTab==pTab );
-
-  if( SQLITE_OK!=rc ){
-    if( zErr==0 ){
-      *pzErr = tdsqlite3MPrintf(db, "vtable constructor failed: %s", zModuleName);
-    }else {
-      *pzErr = tdsqlite3MPrintf(db, "%s", zErr);
-      tdsqlite3_free(zErr);
-    }
-    tdsqlite3DbFree(db, pVTable);
-  }else if( ALWAYS(pVTable->pVtab) ){
-    /* Justification of ALWAYS():  A correct vtab constructor must allocate
-    ** the tdsqlite3_vtab object if successful.  */
-    memset(pVTable->pVtab, 0, sizeof(pVTable->pVtab[0]));
-    pVTable->pVtab->pModule = pMod->pModule;
-    pMod->nRefModule++;
-    pVTable->nRef = 1;
-    if( sCtx.bDeclared==0 ){
-      const char *zFormat = "vtable constructor did not declare schema: %s";
-      *pzErr = tdsqlite3MPrintf(db, zFormat, pTab->zName);
-      tdsqlite3VtabUnlock(pVTable);
-      rc = SQLITE_ERROR;
-    }else{
-      int iCol;
-      u16 oooHidden = 0;
-      /* If everything went according to plan, link the new VTable structure
-      ** into the linked list headed by pTab->pVTable. Then loop through the 
-      ** columns of the table to see if any of them contain the token "hidden".
-      ** If so, set the Column COLFLAG_HIDDEN flag and remove the token from
-      ** the type string.  */
-      pVTable->pNext = pTab->pVTable;
-      pTab->pVTable = pVTable;
-
-      for(iCol=0; iCol<pTab->nCol; iCol++){
-        char *zType = tdsqlite3ColumnType(&pTab->aCol[iCol], "");
-        int nType;
-        int i = 0;
-        nType = tdsqlite3Strlen30(zType);
-        for(i=0; i<nType; i++){
-          if( 0==tdsqlite3StrNICmp("hidden", &zType[i], 6)
-           && (i==0 || zType[i-1]==' ')
-           && (zType[i+6]=='\0' || zType[i+6]==' ')
-          ){
-            break;
-          }
-        }
-        if( i<nType ){
-          int j;
-          int nDel = 6 + (zType[i+6] ? 1 : 0);
-          for(j=i; (j+nDel)<=nType; j++){
-            zType[j] = zType[j+nDel];
-          }
-          if( zType[i]=='\0' && i>0 ){
-            assert(zType[i-1]==' ');
-            zType[i-1] = '\0';
-          }
-          pTab->aCol[iCol].colFlags |= COLFLAG_HIDDEN;
-          oooHidden = TF_OOOHidden;
-        }else{
-          pTab->tabFlags |= oooHidden;
-        }
-      }
-    }
-  }
-
-  tdsqlite3DbFree(db, zModuleName);
-  return rc;
-}
-
-/*
-** This function is invoked by the parser to call the xConnect() method
-** of the virtual table pTab. If an error occurs, an error code is returned 
-** and an error left in pParse.
-**
-** This call is a no-op if table pTab is not a virtual table.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabCallConnect(Parse *pParse, Table *pTab){
-  tdsqlite3 *db = pParse->db;
-  const char *zMod;
-  Module *pMod;
-  int rc;
-
-  assert( pTab );
-  if( !IsVirtual(pTab) || tdsqlite3GetVTable(db, pTab) ){
-    return SQLITE_OK;
-  }
-
-  /* Locate the required virtual table module */
-  zMod = pTab->azModuleArg[0];
-  pMod = (Module*)tdsqlite3HashFind(&db->aModule, zMod);
-
-  if( !pMod ){
-    const char *zModule = pTab->azModuleArg[0];
-    tdsqlite3ErrorMsg(pParse, "no such module: %s", zModule);
-    rc = SQLITE_ERROR;
-  }else{
-    char *zErr = 0;
-    rc = vtabCallConstructor(db, pTab, pMod, pMod->pModule->xConnect, &zErr);
-    if( rc!=SQLITE_OK ){
-      tdsqlite3ErrorMsg(pParse, "%s", zErr);
-      pParse->rc = rc;
-    }
-    tdsqlite3DbFree(db, zErr);
-  }
-
-  return rc;
-}
-/*
-** Grow the db->aVTrans[] array so that there is room for at least one
-** more v-table. Return SQLITE_NOMEM if a malloc fails, or SQLITE_OK otherwise.
-*/
-static int growVTrans(tdsqlite3 *db){
-  const int ARRAY_INCR = 5;
-
-  /* Grow the sqlite3.aVTrans array if required */
-  if( (db->nVTrans%ARRAY_INCR)==0 ){
-    VTable **aVTrans;
-    tdsqlite3_int64 nBytes = sizeof(tdsqlite3_vtab*)*
-                                 ((tdsqlite3_int64)db->nVTrans + ARRAY_INCR);
-    aVTrans = tdsqlite3DbRealloc(db, (void *)db->aVTrans, nBytes);
-    if( !aVTrans ){
-      return SQLITE_NOMEM_BKPT;
-    }
-    memset(&aVTrans[db->nVTrans], 0, sizeof(tdsqlite3_vtab *)*ARRAY_INCR);
-    db->aVTrans = aVTrans;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Add the virtual table pVTab to the array sqlite3.aVTrans[]. Space should
-** have already been reserved using growVTrans().
-*/
-static void addToVTrans(tdsqlite3 *db, VTable *pVTab){
-  /* Add pVtab to the end of sqlite3.aVTrans */
-  db->aVTrans[db->nVTrans++] = pVTab;
-  tdsqlite3VtabLock(pVTab);
-}
-
-/*
-** This function is invoked by the vdbe to call the xCreate method
-** of the virtual table named zTab in database iDb. 
-**
-** If an error occurs, *pzErr is set to point to an English language
-** description of the error and an SQLITE_XXX error code is returned.
-** In this case the caller must call tdsqlite3DbFree(db, ) on *pzErr.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabCallCreate(tdsqlite3 *db, int iDb, const char *zTab, char **pzErr){
-  int rc = SQLITE_OK;
-  Table *pTab;
-  Module *pMod;
-  const char *zMod;
-
-  pTab = tdsqlite3FindTable(db, zTab, db->aDb[iDb].zDbSName);
-  assert( pTab && IsVirtual(pTab) && !pTab->pVTable );
-
-  /* Locate the required virtual table module */
-  zMod = pTab->azModuleArg[0];
-  pMod = (Module*)tdsqlite3HashFind(&db->aModule, zMod);
-
-  /* If the module has been registered and includes a Create method, 
-  ** invoke it now. If the module has not been registered, return an 
-  ** error. Otherwise, do nothing.
-  */
-  if( pMod==0 || pMod->pModule->xCreate==0 || pMod->pModule->xDestroy==0 ){
-    *pzErr = tdsqlite3MPrintf(db, "no such module: %s", zMod);
-    rc = SQLITE_ERROR;
-  }else{
-    rc = vtabCallConstructor(db, pTab, pMod, pMod->pModule->xCreate, pzErr);
-  }
-
-  /* Justification of ALWAYS():  The xConstructor method is required to
-  ** create a valid tdsqlite3_vtab if it returns SQLITE_OK. */
-  if( rc==SQLITE_OK && ALWAYS(tdsqlite3GetVTable(db, pTab)) ){
-    rc = growVTrans(db);
-    if( rc==SQLITE_OK ){
-      addToVTrans(db, tdsqlite3GetVTable(db, pTab));
-    }
-  }
-
-  return rc;
-}
-
-/*
-** This function is used to set the schema of a virtual table.  It is only
-** valid to call this function from within the xCreate() or xConnect() of a
-** virtual table module.
-*/
-SQLITE_API int tdsqlite3_declare_vtab(tdsqlite3 *db, const char *zCreateTable){
-  VtabCtx *pCtx;
-  int rc = SQLITE_OK;
-  Table *pTab;
-  char *zErr = 0;
-  Parse sParse;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zCreateTable==0 ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  pCtx = db->pVtabCtx;
-  if( !pCtx || pCtx->bDeclared ){
-    tdsqlite3Error(db, SQLITE_MISUSE);
-    tdsqlite3_mutex_leave(db->mutex);
-    return SQLITE_MISUSE_BKPT;
-  }
-  pTab = pCtx->pTab;
-  assert( IsVirtual(pTab) );
-
-  memset(&sParse, 0, sizeof(sParse));
-  sParse.eParseMode = PARSE_MODE_DECLARE_VTAB;
-  sParse.db = db;
-  sParse.nQueryLoop = 1;
-  if( SQLITE_OK==tdsqlite3RunParser(&sParse, zCreateTable, &zErr) 
-   && sParse.pNewTable
-   && !db->mallocFailed
-   && !sParse.pNewTable->pSelect
-   && !IsVirtual(sParse.pNewTable)
-  ){
-    if( !pTab->aCol ){
-      Table *pNew = sParse.pNewTable;
-      Index *pIdx;
-      pTab->aCol = pNew->aCol;
-      pTab->nCol = pNew->nCol;
-      pTab->tabFlags |= pNew->tabFlags & (TF_WithoutRowid|TF_NoVisibleRowid);
-      pNew->nCol = 0;
-      pNew->aCol = 0;
-      assert( pTab->pIndex==0 );
-      assert( HasRowid(pNew) || tdsqlite3PrimaryKeyIndex(pNew)!=0 );
-      if( !HasRowid(pNew)
-       && pCtx->pVTable->pMod->pModule->xUpdate!=0
-       && tdsqlite3PrimaryKeyIndex(pNew)->nKeyCol!=1
-      ){
-        /* WITHOUT ROWID virtual tables must either be read-only (xUpdate==0)
-        ** or else must have a single-column PRIMARY KEY */
-        rc = SQLITE_ERROR;
-      }
-      pIdx = pNew->pIndex;
-      if( pIdx ){
-        assert( pIdx->pNext==0 );
-        pTab->pIndex = pIdx;
-        pNew->pIndex = 0;
-        pIdx->pTable = pTab;
-      }
-    }
-    pCtx->bDeclared = 1;
-  }else{
-    tdsqlite3ErrorWithMsg(db, SQLITE_ERROR, (zErr ? "%s" : 0), zErr);
-    tdsqlite3DbFree(db, zErr);
-    rc = SQLITE_ERROR;
-  }
-  sParse.eParseMode = PARSE_MODE_NORMAL;
-
-  if( sParse.pVdbe ){
-    tdsqlite3VdbeFinalize(sParse.pVdbe);
-  }
-  tdsqlite3DeleteTable(db, sParse.pNewTable);
-  tdsqlite3ParserReset(&sParse);
-
-  assert( (rc&0xff)==rc );
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** This function is invoked by the vdbe to call the xDestroy method
-** of the virtual table named zTab in database iDb. This occurs
-** when a DROP TABLE is mentioned.
-**
-** This call is a no-op if zTab is not a virtual table.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabCallDestroy(tdsqlite3 *db, int iDb, const char *zTab){
-  int rc = SQLITE_OK;
-  Table *pTab;
-
-  pTab = tdsqlite3FindTable(db, zTab, db->aDb[iDb].zDbSName);
-  if( pTab!=0 && ALWAYS(pTab->pVTable!=0) ){
-    VTable *p;
-    int (*xDestroy)(tdsqlite3_vtab *);
-    for(p=pTab->pVTable; p; p=p->pNext){
-      assert( p->pVtab );
-      if( p->pVtab->nRef>0 ){
-        return SQLITE_LOCKED;
-      }
-    }
-    p = vtabDisconnectAll(db, pTab);
-    xDestroy = p->pMod->pModule->xDestroy;
-    if( xDestroy==0 ) xDestroy = p->pMod->pModule->xDisconnect;
-    assert( xDestroy!=0 );
-    pTab->nTabRef++;
-    rc = xDestroy(p->pVtab);
-    /* Remove the tdsqlite3_vtab* from the aVTrans[] array, if applicable */
-    if( rc==SQLITE_OK ){
-      assert( pTab->pVTable==p && p->pNext==0 );
-      p->pVtab = 0;
-      pTab->pVTable = 0;
-      tdsqlite3VtabUnlock(p);
-    }
-    tdsqlite3DeleteTable(db, pTab);
-  }
-
-  return rc;
-}
-
-/*
-** This function invokes either the xRollback or xCommit method
-** of each of the virtual tables in the sqlite3.aVTrans array. The method
-** called is identified by the second argument, "offset", which is
-** the offset of the method to call in the tdsqlite3_module structure.
-**
-** The array is cleared after invoking the callbacks. 
-*/
-static void callFinaliser(tdsqlite3 *db, int offset){
-  int i;
-  if( db->aVTrans ){
-    VTable **aVTrans = db->aVTrans;
-    db->aVTrans = 0;
-    for(i=0; i<db->nVTrans; i++){
-      VTable *pVTab = aVTrans[i];
-      tdsqlite3_vtab *p = pVTab->pVtab;
-      if( p ){
-        int (*x)(tdsqlite3_vtab *);
-        x = *(int (**)(tdsqlite3_vtab *))((char *)p->pModule + offset);
-        if( x ) x(p);
-      }
-      pVTab->iSavepoint = 0;
-      tdsqlite3VtabUnlock(pVTab);
-    }
-    tdsqlite3DbFree(db, aVTrans);
-    db->nVTrans = 0;
-  }
-}
-
-/*
-** Invoke the xSync method of all virtual tables in the sqlite3.aVTrans
-** array. Return the error code for the first error that occurs, or
-** SQLITE_OK if all xSync operations are successful.
-**
-** If an error message is available, leave it in p->zErrMsg.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabSync(tdsqlite3 *db, Vdbe *p){
-  int i;
-  int rc = SQLITE_OK;
-  VTable **aVTrans = db->aVTrans;
-
-  db->aVTrans = 0;
-  for(i=0; rc==SQLITE_OK && i<db->nVTrans; i++){
-    int (*x)(tdsqlite3_vtab *);
-    tdsqlite3_vtab *pVtab = aVTrans[i]->pVtab;
-    if( pVtab && (x = pVtab->pModule->xSync)!=0 ){
-      rc = x(pVtab);
-      tdsqlite3VtabImportErrmsg(p, pVtab);
-    }
-  }
-  db->aVTrans = aVTrans;
-  return rc;
-}
-
-/*
-** Invoke the xRollback method of all virtual tables in the 
-** sqlite3.aVTrans array. Then clear the array itself.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabRollback(tdsqlite3 *db){
-  callFinaliser(db, offsetof(tdsqlite3_module,xRollback));
-  return SQLITE_OK;
-}
-
-/*
-** Invoke the xCommit method of all virtual tables in the 
-** sqlite3.aVTrans array. Then clear the array itself.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabCommit(tdsqlite3 *db){
-  callFinaliser(db, offsetof(tdsqlite3_module,xCommit));
-  return SQLITE_OK;
-}
-
-/*
-** If the virtual table pVtab supports the transaction interface
-** (xBegin/xRollback/xCommit and optionally xSync) and a transaction is
-** not currently open, invoke the xBegin method now.
-**
-** If the xBegin call is successful, place the tdsqlite3_vtab pointer
-** in the sqlite3.aVTrans array.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabBegin(tdsqlite3 *db, VTable *pVTab){
-  int rc = SQLITE_OK;
-  const tdsqlite3_module *pModule;
-
-  /* Special case: If db->aVTrans is NULL and db->nVTrans is greater
-  ** than zero, then this function is being called from within a
-  ** virtual module xSync() callback. It is illegal to write to 
-  ** virtual module tables in this case, so return SQLITE_LOCKED.
-  */
-  if( tdsqlite3VtabInSync(db) ){
-    return SQLITE_LOCKED;
-  }
-  if( !pVTab ){
-    return SQLITE_OK;
-  } 
-  pModule = pVTab->pVtab->pModule;
-
-  if( pModule->xBegin ){
-    int i;
-
-    /* If pVtab is already in the aVTrans array, return early */
-    for(i=0; i<db->nVTrans; i++){
-      if( db->aVTrans[i]==pVTab ){
-        return SQLITE_OK;
-      }
-    }
-
-    /* Invoke the xBegin method. If successful, add the vtab to the 
-    ** sqlite3.aVTrans[] array. */
-    rc = growVTrans(db);
-    if( rc==SQLITE_OK ){
-      rc = pModule->xBegin(pVTab->pVtab);
-      if( rc==SQLITE_OK ){
-        int iSvpt = db->nStatement + db->nSavepoint;
-        addToVTrans(db, pVTab);
-        if( iSvpt && pModule->xSavepoint ){
-          pVTab->iSavepoint = iSvpt;
-          rc = pModule->xSavepoint(pVTab->pVtab, iSvpt-1);
-        }
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** Invoke either the xSavepoint, xRollbackTo or xRelease method of all
-** virtual tables that currently have an open transaction. Pass iSavepoint
-** as the second argument to the virtual table method invoked.
-**
-** If op is SAVEPOINT_BEGIN, the xSavepoint method is invoked. If it is
-** SAVEPOINT_ROLLBACK, the xRollbackTo method. Otherwise, if op is 
-** SAVEPOINT_RELEASE, then the xRelease method of each virtual table with
-** an open transaction is invoked.
-**
-** If any virtual table method returns an error code other than SQLITE_OK, 
-** processing is abandoned and the error returned to the caller of this
-** function immediately. If all calls to virtual table methods are successful,
-** SQLITE_OK is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabSavepoint(tdsqlite3 *db, int op, int iSavepoint){
-  int rc = SQLITE_OK;
-
-  assert( op==SAVEPOINT_RELEASE||op==SAVEPOINT_ROLLBACK||op==SAVEPOINT_BEGIN );
-  assert( iSavepoint>=-1 );
-  if( db->aVTrans ){
-    int i;
-    for(i=0; rc==SQLITE_OK && i<db->nVTrans; i++){
-      VTable *pVTab = db->aVTrans[i];
-      const tdsqlite3_module *pMod = pVTab->pMod->pModule;
-      if( pVTab->pVtab && pMod->iVersion>=2 ){
-        int (*xMethod)(tdsqlite3_vtab *, int);
-        tdsqlite3VtabLock(pVTab);
-        switch( op ){
-          case SAVEPOINT_BEGIN:
-            xMethod = pMod->xSavepoint;
-            pVTab->iSavepoint = iSavepoint+1;
-            break;
-          case SAVEPOINT_ROLLBACK:
-            xMethod = pMod->xRollbackTo;
-            break;
-          default:
-            xMethod = pMod->xRelease;
-            break;
-        }
-        if( xMethod && pVTab->iSavepoint>iSavepoint ){
-          rc = xMethod(pVTab->pVtab, iSavepoint);
-        }
-        tdsqlite3VtabUnlock(pVTab);
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** The first parameter (pDef) is a function implementation.  The
-** second parameter (pExpr) is the first argument to this function.
-** If pExpr is a column in a virtual table, then let the virtual
-** table implementation have an opportunity to overload the function.
-**
-** This routine is used to allow virtual table implementations to
-** overload MATCH, LIKE, GLOB, and REGEXP operators.
-**
-** Return either the pDef argument (indicating no change) or a 
-** new FuncDef structure that is marked as ephemeral using the
-** SQLITE_FUNC_EPHEM flag.
-*/
-SQLITE_PRIVATE FuncDef *tdsqlite3VtabOverloadFunction(
-  tdsqlite3 *db,    /* Database connection for reporting malloc problems */
-  FuncDef *pDef,  /* Function to possibly overload */
-  int nArg,       /* Number of arguments to the function */
-  Expr *pExpr     /* First argument to the function */
-){
-  Table *pTab;
-  tdsqlite3_vtab *pVtab;
-  tdsqlite3_module *pMod;
-  void (*xSFunc)(tdsqlite3_context*,int,tdsqlite3_value**) = 0;
-  void *pArg = 0;
-  FuncDef *pNew;
-  int rc = 0;
-
-  /* Check to see the left operand is a column in a virtual table */
-  if( NEVER(pExpr==0) ) return pDef;
-  if( pExpr->op!=TK_COLUMN ) return pDef;
-  pTab = pExpr->y.pTab;
-  if( pTab==0 ) return pDef;
-  if( !IsVirtual(pTab) ) return pDef;
-  pVtab = tdsqlite3GetVTable(db, pTab)->pVtab;
-  assert( pVtab!=0 );
-  assert( pVtab->pModule!=0 );
-  pMod = (tdsqlite3_module *)pVtab->pModule;
-  if( pMod->xFindFunction==0 ) return pDef;
- 
-  /* Call the xFindFunction method on the virtual table implementation
-  ** to see if the implementation wants to overload this function.
-  **
-  ** Though undocumented, we have historically always invoked xFindFunction
-  ** with an all lower-case function name.  Continue in this tradition to
-  ** avoid any chance of an incompatibility.
-  */
-#ifdef SQLITE_DEBUG
-  {
-    int i;
-    for(i=0; pDef->zName[i]; i++){
-      unsigned char x = (unsigned char)pDef->zName[i];
-      assert( x==tdsqlite3UpperToLower[x] );
-    }
-  }
-#endif
-  rc = pMod->xFindFunction(pVtab, nArg, pDef->zName, &xSFunc, &pArg);
-  if( rc==0 ){
-    return pDef;
-  }
-
-  /* Create a new ephemeral function definition for the overloaded
-  ** function */
-  pNew = tdsqlite3DbMallocZero(db, sizeof(*pNew)
-                             + tdsqlite3Strlen30(pDef->zName) + 1);
-  if( pNew==0 ){
-    return pDef;
-  }
-  *pNew = *pDef;
-  pNew->zName = (const char*)&pNew[1];
-  memcpy((char*)&pNew[1], pDef->zName, tdsqlite3Strlen30(pDef->zName)+1);
-  pNew->xSFunc = xSFunc;
-  pNew->pUserData = pArg;
-  pNew->funcFlags |= SQLITE_FUNC_EPHEM;
-  return pNew;
-}
-
-/*
-** Make sure virtual table pTab is contained in the pParse->apVirtualLock[]
-** array so that an OP_VBegin will get generated for it.  Add pTab to the
-** array if it is missing.  If pTab is already in the array, this routine
-** is a no-op.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabMakeWritable(Parse *pParse, Table *pTab){
-  Parse *pToplevel = tdsqlite3ParseToplevel(pParse);
-  int i, n;
-  Table **apVtabLock;
-
-  assert( IsVirtual(pTab) );
-  for(i=0; i<pToplevel->nVtabLock; i++){
-    if( pTab==pToplevel->apVtabLock[i] ) return;
-  }
-  n = (pToplevel->nVtabLock+1)*sizeof(pToplevel->apVtabLock[0]);
-  apVtabLock = tdsqlite3_realloc64(pToplevel->apVtabLock, n);
-  if( apVtabLock ){
-    pToplevel->apVtabLock = apVtabLock;
-    pToplevel->apVtabLock[pToplevel->nVtabLock++] = pTab;
-  }else{
-    tdsqlite3OomFault(pToplevel->db);
-  }
-}
-
-/*
-** Check to see if virtual table module pMod can be have an eponymous
-** virtual table instance.  If it can, create one if one does not already
-** exist. Return non-zero if the eponymous virtual table instance exists
-** when this routine returns, and return zero if it does not exist.
-**
-** An eponymous virtual table instance is one that is named after its
-** module, and more importantly, does not require a CREATE VIRTUAL TABLE
-** statement in order to come into existance.  Eponymous virtual table
-** instances always exist.  They cannot be DROP-ed.
-**
-** Any virtual table module for which xConnect and xCreate are the same
-** method can have an eponymous virtual table instance.
-*/
-SQLITE_PRIVATE int tdsqlite3VtabEponymousTableInit(Parse *pParse, Module *pMod){
-  const tdsqlite3_module *pModule = pMod->pModule;
-  Table *pTab;
-  char *zErr = 0;
-  int rc;
-  tdsqlite3 *db = pParse->db;
-  if( pMod->pEpoTab ) return 1;
-  if( pModule->xCreate!=0 && pModule->xCreate!=pModule->xConnect ) return 0;
-  pTab = tdsqlite3DbMallocZero(db, sizeof(Table));
-  if( pTab==0 ) return 0;
-  pTab->zName = tdsqlite3DbStrDup(db, pMod->zName);
-  if( pTab->zName==0 ){
-    tdsqlite3DbFree(db, pTab);
-    return 0;
-  }
-  pMod->pEpoTab = pTab;
-  pTab->nTabRef = 1;
-  pTab->pSchema = db->aDb[0].pSchema;
-  assert( pTab->nModuleArg==0 );
-  pTab->iPKey = -1;
-  addModuleArgument(pParse, pTab, tdsqlite3DbStrDup(db, pTab->zName));
-  addModuleArgument(pParse, pTab, 0);
-  addModuleArgument(pParse, pTab, tdsqlite3DbStrDup(db, pTab->zName));
-  rc = vtabCallConstructor(db, pTab, pMod, pModule->xConnect, &zErr);
-  if( rc ){
-    tdsqlite3ErrorMsg(pParse, "%s", zErr);
-    tdsqlite3DbFree(db, zErr);
-    tdsqlite3VtabEponymousTableClear(db, pMod);
-    return 0;
-  }
-  return 1;
-}
-
-/*
-** Erase the eponymous virtual table instance associated with
-** virtual table module pMod, if it exists.
-*/
-SQLITE_PRIVATE void tdsqlite3VtabEponymousTableClear(tdsqlite3 *db, Module *pMod){
-  Table *pTab = pMod->pEpoTab;
-  if( pTab!=0 ){
-    /* Mark the table as Ephemeral prior to deleting it, so that the
-    ** tdsqlite3DeleteTable() routine will know that it is not stored in 
-    ** the schema. */
-    pTab->tabFlags |= TF_Ephemeral;
-    tdsqlite3DeleteTable(db, pTab);
-    pMod->pEpoTab = 0;
-  }
-}
-
-/*
-** Return the ON CONFLICT resolution mode in effect for the virtual
-** table update operation currently in progress.
-**
-** The results of this routine are undefined unless it is called from
-** within an xUpdate method.
-*/
-SQLITE_API int tdsqlite3_vtab_on_conflict(tdsqlite3 *db){
-  static const unsigned char aMap[] = { 
-    SQLITE_ROLLBACK, SQLITE_ABORT, SQLITE_FAIL, SQLITE_IGNORE, SQLITE_REPLACE 
-  };
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  assert( OE_Rollback==1 && OE_Abort==2 && OE_Fail==3 );
-  assert( OE_Ignore==4 && OE_Replace==5 );
-  assert( db->vtabOnConflict>=1 && db->vtabOnConflict<=5 );
-  return (int)aMap[db->vtabOnConflict-1];
-}
-
-/*
-** Call from within the xCreate() or xConnect() methods to provide 
-** the SQLite core with additional information about the behavior
-** of the virtual table being implemented.
-*/
-SQLITE_API int tdsqlite3_vtab_config(tdsqlite3 *db, int op, ...){
-  va_list ap;
-  int rc = SQLITE_OK;
-  VtabCtx *p;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  p = db->pVtabCtx;
-  if( !p ){
-    rc = SQLITE_MISUSE_BKPT;
-  }else{
-    assert( p->pTab==0 || IsVirtual(p->pTab) );
-    va_start(ap, op);
-    switch( op ){
-      case SQLITE_VTAB_CONSTRAINT_SUPPORT: {
-        p->pVTable->bConstraint = (u8)va_arg(ap, int);
-        break;
-      }
-      case SQLITE_VTAB_INNOCUOUS: {
-        p->pVTable->eVtabRisk = SQLITE_VTABRISK_Low;
-        break;
-      }
-      case SQLITE_VTAB_DIRECTONLY: {
-        p->pVTable->eVtabRisk = SQLITE_VTABRISK_High;
-        break;
-      }
-      default: {
-        rc = SQLITE_MISUSE_BKPT;
-        break;
-      }
-    }
-    va_end(ap);
-  }
-
-  if( rc!=SQLITE_OK ) tdsqlite3Error(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-/************** End of vtab.c ************************************************/
-/************** Begin file wherecode.c ***************************************/
-/*
-** 2015-06-06
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This module contains C code that generates VDBE code used to process
-** the WHERE clause of SQL statements.
-**
-** This file was split off from where.c on 2015-06-06 in order to reduce the
-** size of where.c and make it easier to edit.  This file contains the routines
-** that actually generate the bulk of the WHERE loop code.  The original where.c
-** file retains the code that does query planning and analysis.
-*/
-/* #include "sqliteInt.h" */
-/************** Include whereInt.h in the middle of wherecode.c **************/
-/************** Begin file whereInt.h ****************************************/
-/*
-** 2013-11-12
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains structure and macro definitions for the query
-** planner logic in "where.c".  These definitions are broken out into
-** a separate source file for easier editing.
-*/
-#ifndef SQLITE_WHEREINT_H
-#define SQLITE_WHEREINT_H
-
-/*
-** Trace output macros
-*/
-#if defined(SQLITE_TEST) || defined(SQLITE_DEBUG)
-/***/ extern int tdsqlite3WhereTrace;
-#endif
-#if defined(SQLITE_DEBUG) \
-    && (defined(SQLITE_TEST) || defined(SQLITE_ENABLE_WHERETRACE))
-# define WHERETRACE(K,X)  if(tdsqlite3WhereTrace&(K)) tdsqlite3DebugPrintf X
-# define WHERETRACE_ENABLED 1
-#else
-# define WHERETRACE(K,X)
-#endif
-
-/* Forward references
-*/
-typedef struct WhereClause WhereClause;
-typedef struct WhereMaskSet WhereMaskSet;
-typedef struct WhereOrInfo WhereOrInfo;
-typedef struct WhereAndInfo WhereAndInfo;
-typedef struct WhereLevel WhereLevel;
-typedef struct WhereLoop WhereLoop;
-typedef struct WherePath WherePath;
-typedef struct WhereTerm WhereTerm;
-typedef struct WhereLoopBuilder WhereLoopBuilder;
-typedef struct WhereScan WhereScan;
-typedef struct WhereOrCost WhereOrCost;
-typedef struct WhereOrSet WhereOrSet;
-
-/*
-** This object contains information needed to implement a single nested
-** loop in WHERE clause.
-**
-** Contrast this object with WhereLoop.  This object describes the
-** implementation of the loop.  WhereLoop describes the algorithm.
-** This object contains a pointer to the WhereLoop algorithm as one of
-** its elements.
-**
-** The WhereInfo object contains a single instance of this object for
-** each term in the FROM clause (which is to say, for each of the
-** nested loops as implemented).  The order of WhereLevel objects determines
-** the loop nested order, with WhereInfo.a[0] being the outer loop and
-** WhereInfo.a[WhereInfo.nLevel-1] being the inner loop.
-*/
-struct WhereLevel {
-  int iLeftJoin;        /* Memory cell used to implement LEFT OUTER JOIN */
-  int iTabCur;          /* The VDBE cursor used to access the table */
-  int iIdxCur;          /* The VDBE cursor used to access pIdx */
-  int addrBrk;          /* Jump here to break out of the loop */
-  int addrNxt;          /* Jump here to start the next IN combination */
-  int addrSkip;         /* Jump here for next iteration of skip-scan */
-  int addrCont;         /* Jump here to continue with the next loop cycle */
-  int addrFirst;        /* First instruction of interior of the loop */
-  int addrBody;         /* Beginning of the body of this loop */
-  int regBignull;       /* big-null flag reg. True if a NULL-scan is needed */
-  int addrBignull;      /* Jump here for next part of big-null scan */
-#ifndef SQLITE_LIKE_DOESNT_MATCH_BLOBS
-  u32 iLikeRepCntr;     /* LIKE range processing counter register (times 2) */
-  int addrLikeRep;      /* LIKE range processing address */
-#endif
-  u8 iFrom;             /* Which entry in the FROM clause */
-  u8 op, p3, p5;        /* Opcode, P3 & P5 of the opcode that ends the loop */
-  int p1, p2;           /* Operands of the opcode used to end the loop */
-  union {               /* Information that depends on pWLoop->wsFlags */
-    struct {
-      int nIn;              /* Number of entries in aInLoop[] */
-      struct InLoop {
-        int iCur;              /* The VDBE cursor used by this IN operator */
-        int addrInTop;         /* Top of the IN loop */
-        int iBase;             /* Base register of multi-key index record */
-        int nPrefix;           /* Number of prior entires in the key */
-        u8 eEndLoopOp;         /* IN Loop terminator. OP_Next or OP_Prev */
-      } *aInLoop;           /* Information about each nested IN operator */
-    } in;                 /* Used when pWLoop->wsFlags&WHERE_IN_ABLE */
-    Index *pCovidx;       /* Possible covering index for WHERE_MULTI_OR */
-  } u;
-  struct WhereLoop *pWLoop;  /* The selected WhereLoop object */
-  Bitmask notReady;          /* FROM entries not usable at this level */
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-  int addrVisit;        /* Address at which row is visited */
-#endif
-};
-
-/*
-** Each instance of this object represents an algorithm for evaluating one
-** term of a join.  Every term of the FROM clause will have at least
-** one corresponding WhereLoop object (unless INDEXED BY constraints
-** prevent a query solution - which is an error) and many terms of the
-** FROM clause will have multiple WhereLoop objects, each describing a
-** potential way of implementing that FROM-clause term, together with
-** dependencies and cost estimates for using the chosen algorithm.
-**
-** Query planning consists of building up a collection of these WhereLoop
-** objects, then computing a particular sequence of WhereLoop objects, with
-** one WhereLoop object per FROM clause term, that satisfy all dependencies
-** and that minimize the overall cost.
-*/
-struct WhereLoop {
-  Bitmask prereq;       /* Bitmask of other loops that must run first */
-  Bitmask maskSelf;     /* Bitmask identifying table iTab */
-#ifdef SQLITE_DEBUG
-  char cId;             /* Symbolic ID of this loop for debugging use */
-#endif
-  u8 iTab;              /* Position in FROM clause of table for this loop */
-  u8 iSortIdx;          /* Sorting index number.  0==None */
-  LogEst rSetup;        /* One-time setup cost (ex: create transient index) */
-  LogEst rRun;          /* Cost of running each loop */
-  LogEst nOut;          /* Estimated number of output rows */
-  union {
-    struct {               /* Information for internal btree tables */
-      u16 nEq;               /* Number of equality constraints */
-      u16 nBtm;              /* Size of BTM vector */
-      u16 nTop;              /* Size of TOP vector */
-      u16 nDistinctCol;      /* Index columns used to sort for DISTINCT */
-      Index *pIndex;         /* Index used, or NULL */
-    } btree;
-    struct {               /* Information for virtual tables */
-      int idxNum;            /* Index number */
-      u8 needFree;           /* True if tdsqlite3_free(idxStr) is needed */
-      i8 isOrdered;          /* True if satisfies ORDER BY */
-      u16 omitMask;          /* Terms that may be omitted */
-      char *idxStr;          /* Index identifier string */
-    } vtab;
-  } u;
-  u32 wsFlags;          /* WHERE_* flags describing the plan */
-  u16 nLTerm;           /* Number of entries in aLTerm[] */
-  u16 nSkip;            /* Number of NULL aLTerm[] entries */
-  /**** whereLoopXfer() copies fields above ***********************/
-# define WHERE_LOOP_XFER_SZ offsetof(WhereLoop,nLSlot)
-  u16 nLSlot;           /* Number of slots allocated for aLTerm[] */
-  WhereTerm **aLTerm;   /* WhereTerms used */
-  WhereLoop *pNextLoop; /* Next WhereLoop object in the WhereClause */
-  WhereTerm *aLTermSpace[3];  /* Initial aLTerm[] space */
-};
-
-/* This object holds the prerequisites and the cost of running a
-** subquery on one operand of an OR operator in the WHERE clause.
-** See WhereOrSet for additional information 
-*/
-struct WhereOrCost {
-  Bitmask prereq;     /* Prerequisites */
-  LogEst rRun;        /* Cost of running this subquery */
-  LogEst nOut;        /* Number of outputs for this subquery */
-};
-
-/* The WhereOrSet object holds a set of possible WhereOrCosts that
-** correspond to the subquery(s) of OR-clause processing.  Only the
-** best N_OR_COST elements are retained.
-*/
-#define N_OR_COST 3
-struct WhereOrSet {
-  u16 n;                      /* Number of valid a[] entries */
-  WhereOrCost a[N_OR_COST];   /* Set of best costs */
-};
-
-/*
-** Each instance of this object holds a sequence of WhereLoop objects
-** that implement some or all of a query plan.
-**
-** Think of each WhereLoop object as a node in a graph with arcs
-** showing dependencies and costs for travelling between nodes.  (That is
-** not a completely accurate description because WhereLoop costs are a
-** vector, not a scalar, and because dependencies are many-to-one, not
-** one-to-one as are graph nodes.  But it is a useful visualization aid.)
-** Then a WherePath object is a path through the graph that visits some
-** or all of the WhereLoop objects once.
-**
-** The "solver" works by creating the N best WherePath objects of length
-** 1.  Then using those as a basis to compute the N best WherePath objects
-** of length 2.  And so forth until the length of WherePaths equals the
-** number of nodes in the FROM clause.  The best (lowest cost) WherePath
-** at the end is the chosen query plan.
-*/
-struct WherePath {
-  Bitmask maskLoop;     /* Bitmask of all WhereLoop objects in this path */
-  Bitmask revLoop;      /* aLoop[]s that should be reversed for ORDER BY */
-  LogEst nRow;          /* Estimated number of rows generated by this path */
-  LogEst rCost;         /* Total cost of this path */
-  LogEst rUnsorted;     /* Total cost of this path ignoring sorting costs */
-  i8 isOrdered;         /* No. of ORDER BY terms satisfied. -1 for unknown */
-  WhereLoop **aLoop;    /* Array of WhereLoop objects implementing this path */
-};
-
-/*
-** The query generator uses an array of instances of this structure to
-** help it analyze the subexpressions of the WHERE clause.  Each WHERE
-** clause subexpression is separated from the others by AND operators,
-** usually, or sometimes subexpressions separated by OR.
-**
-** All WhereTerms are collected into a single WhereClause structure.  
-** The following identity holds:
-**
-**        WhereTerm.pWC->a[WhereTerm.idx] == WhereTerm
-**
-** When a term is of the form:
-**
-**              X <op> <expr>
-**
-** where X is a column name and <op> is one of certain operators,
-** then WhereTerm.leftCursor and WhereTerm.u.leftColumn record the
-** cursor number and column number for X.  WhereTerm.eOperator records
-** the <op> using a bitmask encoding defined by WO_xxx below.  The
-** use of a bitmask encoding for the operator allows us to search
-** quickly for terms that match any of several different operators.
-**
-** A WhereTerm might also be two or more subterms connected by OR:
-**
-**         (t1.X <op> <expr>) OR (t1.Y <op> <expr>) OR ....
-**
-** In this second case, wtFlag has the TERM_ORINFO bit set and eOperator==WO_OR
-** and the WhereTerm.u.pOrInfo field points to auxiliary information that
-** is collected about the OR clause.
-**
-** If a term in the WHERE clause does not match either of the two previous
-** categories, then eOperator==0.  The WhereTerm.pExpr field is still set
-** to the original subexpression content and wtFlags is set up appropriately
-** but no other fields in the WhereTerm object are meaningful.
-**
-** When eOperator!=0, prereqRight and prereqAll record sets of cursor numbers,
-** but they do so indirectly.  A single WhereMaskSet structure translates
-** cursor number into bits and the translated bit is stored in the prereq
-** fields.  The translation is used in order to maximize the number of
-** bits that will fit in a Bitmask.  The VDBE cursor numbers might be
-** spread out over the non-negative integers.  For example, the cursor
-** numbers might be 3, 8, 9, 10, 20, 23, 41, and 45.  The WhereMaskSet
-** translates these sparse cursor numbers into consecutive integers
-** beginning with 0 in order to make the best possible use of the available
-** bits in the Bitmask.  So, in the example above, the cursor numbers
-** would be mapped into integers 0 through 7.
-**
-** The number of terms in a join is limited by the number of bits
-** in prereqRight and prereqAll.  The default is 64 bits, hence SQLite
-** is only able to process joins with 64 or fewer tables.
-*/
-struct WhereTerm {
-  Expr *pExpr;            /* Pointer to the subexpression that is this term */
-  WhereClause *pWC;       /* The clause this term is part of */
-  LogEst truthProb;       /* Probability of truth for this expression */
-  u16 wtFlags;            /* TERM_xxx bit flags.  See below */
-  u16 eOperator;          /* A WO_xx value describing <op> */
-  u8 nChild;              /* Number of children that must disable us */
-  u8 eMatchOp;            /* Op for vtab MATCH/LIKE/GLOB/REGEXP terms */
-  int iParent;            /* Disable pWC->a[iParent] when this term disabled */
-  int leftCursor;         /* Cursor number of X in "X <op> <expr>" */
-  int iField;             /* Field in (?,?,?) IN (SELECT...) vector */
-  union {
-    int leftColumn;         /* Column number of X in "X <op> <expr>" */
-    WhereOrInfo *pOrInfo;   /* Extra information if (eOperator & WO_OR)!=0 */
-    WhereAndInfo *pAndInfo; /* Extra information if (eOperator& WO_AND)!=0 */
-  } u;
-  Bitmask prereqRight;    /* Bitmask of tables used by pExpr->pRight */
-  Bitmask prereqAll;      /* Bitmask of tables referenced by pExpr */
-};
-
-/*
-** Allowed values of WhereTerm.wtFlags
-*/
-#define TERM_DYNAMIC    0x0001 /* Need to call tdsqlite3ExprDelete(db, pExpr) */
-#define TERM_VIRTUAL    0x0002 /* Added by the optimizer.  Do not code */
-#define TERM_CODED      0x0004 /* This term is already coded */
-#define TERM_COPIED     0x0008 /* Has a child */
-#define TERM_ORINFO     0x0010 /* Need to free the WhereTerm.u.pOrInfo object */
-#define TERM_ANDINFO    0x0020 /* Need to free the WhereTerm.u.pAndInfo obj */
-#define TERM_OR_OK      0x0040 /* Used during OR-clause processing */
-#ifdef SQLITE_ENABLE_STAT4
-#  define TERM_VNULL    0x0080 /* Manufactured x>NULL or x<=NULL term */
-#else
-#  define TERM_VNULL    0x0000 /* Disabled if not using stat4 */
-#endif
-#define TERM_LIKEOPT    0x0100 /* Virtual terms from the LIKE optimization */
-#define TERM_LIKECOND   0x0200 /* Conditionally this LIKE operator term */
-#define TERM_LIKE       0x0400 /* The original LIKE operator */
-#define TERM_IS         0x0800 /* Term.pExpr is an IS operator */
-#define TERM_VARSELECT  0x1000 /* Term.pExpr contains a correlated sub-query */
-
-/*
-** An instance of the WhereScan object is used as an iterator for locating
-** terms in the WHERE clause that are useful to the query planner.
-*/
-struct WhereScan {
-  WhereClause *pOrigWC;      /* Original, innermost WhereClause */
-  WhereClause *pWC;          /* WhereClause currently being scanned */
-  const char *zCollName;     /* Required collating sequence, if not NULL */
-  Expr *pIdxExpr;            /* Search for this index expression */
-  char idxaff;               /* Must match this affinity, if zCollName!=NULL */
-  unsigned char nEquiv;      /* Number of entries in aEquiv[] */
-  unsigned char iEquiv;      /* Next unused slot in aEquiv[] */
-  u32 opMask;                /* Acceptable operators */
-  int k;                     /* Resume scanning at this->pWC->a[this->k] */
-  int aiCur[11];             /* Cursors in the equivalence class */
-  i16 aiColumn[11];          /* Corresponding column number in the eq-class */
-};
-
-/*
-** An instance of the following structure holds all information about a
-** WHERE clause.  Mostly this is a container for one or more WhereTerms.
-**
-** Explanation of pOuter:  For a WHERE clause of the form
-**
-**           a AND ((b AND c) OR (d AND e)) AND f
-**
-** There are separate WhereClause objects for the whole clause and for
-** the subclauses "(b AND c)" and "(d AND e)".  The pOuter field of the
-** subclauses points to the WhereClause object for the whole clause.
-*/
-struct WhereClause {
-  WhereInfo *pWInfo;       /* WHERE clause processing context */
-  WhereClause *pOuter;     /* Outer conjunction */
-  u8 op;                   /* Split operator.  TK_AND or TK_OR */
-  u8 hasOr;                /* True if any a[].eOperator is WO_OR */
-  int nTerm;               /* Number of terms */
-  int nSlot;               /* Number of entries in a[] */
-  WhereTerm *a;            /* Each a[] describes a term of the WHERE cluase */
-#if defined(SQLITE_SMALL_STACK)
-  WhereTerm aStatic[1];    /* Initial static space for a[] */
-#else
-  WhereTerm aStatic[8];    /* Initial static space for a[] */
-#endif
-};
-
-/*
-** A WhereTerm with eOperator==WO_OR has its u.pOrInfo pointer set to
-** a dynamically allocated instance of the following structure.
-*/
-struct WhereOrInfo {
-  WhereClause wc;          /* Decomposition into subterms */
-  Bitmask indexable;       /* Bitmask of all indexable tables in the clause */
-};
-
-/*
-** A WhereTerm with eOperator==WO_AND has its u.pAndInfo pointer set to
-** a dynamically allocated instance of the following structure.
-*/
-struct WhereAndInfo {
-  WhereClause wc;          /* The subexpression broken out */
-};
-
-/*
-** An instance of the following structure keeps track of a mapping
-** between VDBE cursor numbers and bits of the bitmasks in WhereTerm.
-**
-** The VDBE cursor numbers are small integers contained in 
-** SrcList_item.iCursor and Expr.iTable fields.  For any given WHERE 
-** clause, the cursor numbers might not begin with 0 and they might
-** contain gaps in the numbering sequence.  But we want to make maximum
-** use of the bits in our bitmasks.  This structure provides a mapping
-** from the sparse cursor numbers into consecutive integers beginning
-** with 0.
-**
-** If WhereMaskSet.ix[A]==B it means that The A-th bit of a Bitmask
-** corresponds VDBE cursor number B.  The A-th bit of a bitmask is 1<<A.
-**
-** For example, if the WHERE clause expression used these VDBE
-** cursors:  4, 5, 8, 29, 57, 73.  Then the  WhereMaskSet structure
-** would map those cursor numbers into bits 0 through 5.
-**
-** Note that the mapping is not necessarily ordered.  In the example
-** above, the mapping might go like this:  4->3, 5->1, 8->2, 29->0,
-** 57->5, 73->4.  Or one of 719 other combinations might be used. It
-** does not really matter.  What is important is that sparse cursor
-** numbers all get mapped into bit numbers that begin with 0 and contain
-** no gaps.
-*/
-struct WhereMaskSet {
-  int bVarSelect;               /* Used by tdsqlite3WhereExprUsage() */
-  int n;                        /* Number of assigned cursor values */
-  int ix[BMS];                  /* Cursor assigned to each bit */
-};
-
-/*
-** Initialize a WhereMaskSet object
-*/
-#define initMaskSet(P)  (P)->n=0
-
-/*
-** This object is a convenience wrapper holding all information needed
-** to construct WhereLoop objects for a particular query.
-*/
-struct WhereLoopBuilder {
-  WhereInfo *pWInfo;        /* Information about this WHERE */
-  WhereClause *pWC;         /* WHERE clause terms */
-  ExprList *pOrderBy;       /* ORDER BY clause */
-  WhereLoop *pNew;          /* Template WhereLoop */
-  WhereOrSet *pOrSet;       /* Record best loops here, if not NULL */
-#ifdef SQLITE_ENABLE_STAT4
-  UnpackedRecord *pRec;     /* Probe for stat4 (if required) */
-  int nRecValid;            /* Number of valid fields currently in pRec */
-#endif
-  unsigned int bldFlags;    /* SQLITE_BLDF_* flags */
-  unsigned int iPlanLimit;  /* Search limiter */
-};
-
-/* Allowed values for WhereLoopBuider.bldFlags */
-#define SQLITE_BLDF_INDEXED  0x0001   /* An index is used */
-#define SQLITE_BLDF_UNIQUE   0x0002   /* All keys of a UNIQUE index used */
-
-/* The WhereLoopBuilder.iPlanLimit is used to limit the number of
-** index+constraint combinations the query planner will consider for a
-** particular query.  If this parameter is unlimited, then certain
-** pathological queries can spend excess time in the tdsqlite3WhereBegin()
-** routine.  The limit is high enough that is should not impact real-world
-** queries.
-**
-** SQLITE_QUERY_PLANNER_LIMIT is the baseline limit.  The limit is
-** increased by SQLITE_QUERY_PLANNER_LIMIT_INCR before each term of the FROM
-** clause is processed, so that every table in a join is guaranteed to be
-** able to propose a some index+constraint combinations even if the initial
-** baseline limit was exhausted by prior tables of the join.
-*/
-#ifndef SQLITE_QUERY_PLANNER_LIMIT
-# define SQLITE_QUERY_PLANNER_LIMIT 20000
-#endif
-#ifndef SQLITE_QUERY_PLANNER_LIMIT_INCR
-# define SQLITE_QUERY_PLANNER_LIMIT_INCR 1000
-#endif
-
-/*
-** Each instance of this object records a change to a single node
-** in an expression tree to cause that node to point to a column
-** of an index rather than an expression or a virtual column.  All
-** such transformations need to be undone at the end of WHERE clause
-** processing.
-*/
-typedef struct WhereExprMod WhereExprMod;
-struct WhereExprMod {
-  WhereExprMod *pNext;  /* Next translation on a list of them all */
-  Expr *pExpr;          /* The Expr node that was transformed */
-  Expr orig;            /* Original value of the Expr node */
-};
-
-/*
-** The WHERE clause processing routine has two halves.  The
-** first part does the start of the WHERE loop and the second
-** half does the tail of the WHERE loop.  An instance of
-** this structure is returned by the first half and passed
-** into the second half to give some continuity.
-**
-** An instance of this object holds the complete state of the query
-** planner.
-*/
-struct WhereInfo {
-  Parse *pParse;            /* Parsing and code generating context */
-  SrcList *pTabList;        /* List of tables in the join */
-  ExprList *pOrderBy;       /* The ORDER BY clause or NULL */
-  ExprList *pResultSet;     /* Result set of the query */
-  Expr *pWhere;             /* The complete WHERE clause */
-  int aiCurOnePass[2];      /* OP_OpenWrite cursors for the ONEPASS opt */
-  int iContinue;            /* Jump here to continue with next record */
-  int iBreak;               /* Jump here to break out of the loop */
-  int savedNQueryLoop;      /* pParse->nQueryLoop outside the WHERE loop */
-  u16 wctrlFlags;           /* Flags originally passed to tdsqlite3WhereBegin() */
-  LogEst iLimit;            /* LIMIT if wctrlFlags has WHERE_USE_LIMIT */
-  u8 nLevel;                /* Number of nested loop */
-  i8 nOBSat;                /* Number of ORDER BY terms satisfied by indices */
-  u8 eOnePass;              /* ONEPASS_OFF, or _SINGLE, or _MULTI */
-  u8 eDistinct;             /* One of the WHERE_DISTINCT_* values */
-  unsigned bDeferredSeek :1;   /* Uses OP_DeferredSeek */
-  unsigned untestedTerms :1;   /* Not all WHERE terms resolved by outer loop */
-  unsigned bOrderedInnerLoop:1;/* True if only the inner-most loop is ordered */
-  unsigned sorted :1;          /* True if really sorted (not just grouped) */
-  LogEst nRowOut;           /* Estimated number of output rows */
-  int iTop;                 /* The very beginning of the WHERE loop */
-  WhereLoop *pLoops;        /* List of all WhereLoop objects */
-  WhereExprMod *pExprMods;  /* Expression modifications */
-  Bitmask revMask;          /* Mask of ORDER BY terms that need reversing */
-  WhereClause sWC;          /* Decomposition of the WHERE clause */
-  WhereMaskSet sMaskSet;    /* Map cursor numbers to bitmasks */
-  WhereLevel a[1];          /* Information about each nest loop in WHERE */
-};
-
-/*
-** Private interfaces - callable only by other where.c routines.
-**
-** where.c:
-*/
-SQLITE_PRIVATE Bitmask tdsqlite3WhereGetMask(WhereMaskSet*,int);
-#ifdef WHERETRACE_ENABLED
-SQLITE_PRIVATE void tdsqlite3WhereClausePrint(WhereClause *pWC);
-SQLITE_PRIVATE void tdsqlite3WhereTermPrint(WhereTerm *pTerm, int iTerm);
-SQLITE_PRIVATE void tdsqlite3WhereLoopPrint(WhereLoop *p, WhereClause *pWC);
-#endif
-SQLITE_PRIVATE WhereTerm *tdsqlite3WhereFindTerm(
-  WhereClause *pWC,     /* The WHERE clause to be searched */
-  int iCur,             /* Cursor number of LHS */
-  int iColumn,          /* Column number of LHS */
-  Bitmask notReady,     /* RHS must not overlap with this mask */
-  u32 op,               /* Mask of WO_xx values describing operator */
-  Index *pIdx           /* Must be compatible with this index, if not NULL */
-);
-
-/* wherecode.c: */
-#ifndef SQLITE_OMIT_EXPLAIN
-SQLITE_PRIVATE int tdsqlite3WhereExplainOneScan(
-  Parse *pParse,                  /* Parse context */
-  SrcList *pTabList,              /* Table list this loop refers to */
-  WhereLevel *pLevel,             /* Scan to write OP_Explain opcode for */
-  u16 wctrlFlags                  /* Flags passed to tdsqlite3WhereBegin() */
-);
-#else
-# define tdsqlite3WhereExplainOneScan(u,v,w,x) 0
-#endif /* SQLITE_OMIT_EXPLAIN */
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-SQLITE_PRIVATE void tdsqlite3WhereAddScanStatus(
-  Vdbe *v,                        /* Vdbe to add scanstatus entry to */
-  SrcList *pSrclist,              /* FROM clause pLvl reads data from */
-  WhereLevel *pLvl,               /* Level to add scanstatus() entry for */
-  int addrExplain                 /* Address of OP_Explain (or 0) */
-);
-#else
-# define tdsqlite3WhereAddScanStatus(a, b, c, d) ((void)d)
-#endif
-SQLITE_PRIVATE Bitmask tdsqlite3WhereCodeOneLoopStart(
-  Parse *pParse,       /* Parsing context */
-  Vdbe *v,             /* Prepared statement under construction */
-  WhereInfo *pWInfo,   /* Complete information about the WHERE clause */
-  int iLevel,          /* Which level of pWInfo->a[] should be coded */
-  WhereLevel *pLevel,  /* The current level pointer */
-  Bitmask notReady     /* Which tables are currently available */
-);
-
-/* whereexpr.c: */
-SQLITE_PRIVATE void tdsqlite3WhereClauseInit(WhereClause*,WhereInfo*);
-SQLITE_PRIVATE void tdsqlite3WhereClauseClear(WhereClause*);
-SQLITE_PRIVATE void tdsqlite3WhereSplit(WhereClause*,Expr*,u8);
-SQLITE_PRIVATE Bitmask tdsqlite3WhereExprUsage(WhereMaskSet*, Expr*);
-SQLITE_PRIVATE Bitmask tdsqlite3WhereExprUsageNN(WhereMaskSet*, Expr*);
-SQLITE_PRIVATE Bitmask tdsqlite3WhereExprListUsage(WhereMaskSet*, ExprList*);
-SQLITE_PRIVATE void tdsqlite3WhereExprAnalyze(SrcList*, WhereClause*);
-SQLITE_PRIVATE void tdsqlite3WhereTabFuncArgs(Parse*, struct SrcList_item*, WhereClause*);
-
-
-
-
-
-/*
-** Bitmasks for the operators on WhereTerm objects.  These are all
-** operators that are of interest to the query planner.  An
-** OR-ed combination of these values can be used when searching for
-** particular WhereTerms within a WhereClause.
-**
-** Value constraints:
-**     WO_EQ    == SQLITE_INDEX_CONSTRAINT_EQ
-**     WO_LT    == SQLITE_INDEX_CONSTRAINT_LT
-**     WO_LE    == SQLITE_INDEX_CONSTRAINT_LE
-**     WO_GT    == SQLITE_INDEX_CONSTRAINT_GT
-**     WO_GE    == SQLITE_INDEX_CONSTRAINT_GE
-*/
-#define WO_IN     0x0001
-#define WO_EQ     0x0002
-#define WO_LT     (WO_EQ<<(TK_LT-TK_EQ))
-#define WO_LE     (WO_EQ<<(TK_LE-TK_EQ))
-#define WO_GT     (WO_EQ<<(TK_GT-TK_EQ))
-#define WO_GE     (WO_EQ<<(TK_GE-TK_EQ))
-#define WO_AUX    0x0040       /* Op useful to virtual tables only */
-#define WO_IS     0x0080
-#define WO_ISNULL 0x0100
-#define WO_OR     0x0200       /* Two or more OR-connected terms */
-#define WO_AND    0x0400       /* Two or more AND-connected terms */
-#define WO_EQUIV  0x0800       /* Of the form A==B, both columns */
-#define WO_NOOP   0x1000       /* This term does not restrict search space */
-
-#define WO_ALL    0x1fff       /* Mask of all possible WO_* values */
-#define WO_SINGLE 0x01ff       /* Mask of all non-compound WO_* values */
-
-/*
-** These are definitions of bits in the WhereLoop.wsFlags field.
-** The particular combination of bits in each WhereLoop help to
-** determine the algorithm that WhereLoop represents.
-*/
-#define WHERE_COLUMN_EQ    0x00000001  /* x=EXPR */
-#define WHERE_COLUMN_RANGE 0x00000002  /* x<EXPR and/or x>EXPR */
-#define WHERE_COLUMN_IN    0x00000004  /* x IN (...) */
-#define WHERE_COLUMN_NULL  0x00000008  /* x IS NULL */
-#define WHERE_CONSTRAINT   0x0000000f  /* Any of the WHERE_COLUMN_xxx values */
-#define WHERE_TOP_LIMIT    0x00000010  /* x<EXPR or x<=EXPR constraint */
-#define WHERE_BTM_LIMIT    0x00000020  /* x>EXPR or x>=EXPR constraint */
-#define WHERE_BOTH_LIMIT   0x00000030  /* Both x>EXPR and x<EXPR */
-#define WHERE_IDX_ONLY     0x00000040  /* Use index only - omit table */
-#define WHERE_IPK          0x00000100  /* x is the INTEGER PRIMARY KEY */
-#define WHERE_INDEXED      0x00000200  /* WhereLoop.u.btree.pIndex is valid */
-#define WHERE_VIRTUALTABLE 0x00000400  /* WhereLoop.u.vtab is valid */
-#define WHERE_IN_ABLE      0x00000800  /* Able to support an IN operator */
-#define WHERE_ONEROW       0x00001000  /* Selects no more than one row */
-#define WHERE_MULTI_OR     0x00002000  /* OR using multiple indices */
-#define WHERE_AUTO_INDEX   0x00004000  /* Uses an ephemeral index */
-#define WHERE_SKIPSCAN     0x00008000  /* Uses the skip-scan algorithm */
-#define WHERE_UNQ_WANTED   0x00010000  /* WHERE_ONEROW would have been helpful*/
-#define WHERE_PARTIALIDX   0x00020000  /* The automatic index is partial */
-#define WHERE_IN_EARLYOUT  0x00040000  /* Perhaps quit IN loops early */
-#define WHERE_BIGNULL_SORT 0x00080000  /* Column nEq of index is BIGNULL */
-
-#endif /* !defined(SQLITE_WHEREINT_H) */
-
-/************** End of whereInt.h ********************************************/
-/************** Continuing where we left off in wherecode.c ******************/
-
-#ifndef SQLITE_OMIT_EXPLAIN
-
-/*
-** Return the name of the i-th column of the pIdx index.
-*/
-static const char *explainIndexColumnName(Index *pIdx, int i){
-  i = pIdx->aiColumn[i];
-  if( i==XN_EXPR ) return "<expr>";
-  if( i==XN_ROWID ) return "rowid";
-  return pIdx->pTable->aCol[i].zName;
-}
-
-/*
-** This routine is a helper for explainIndexRange() below
-**
-** pStr holds the text of an expression that we are building up one term
-** at a time.  This routine adds a new term to the end of the expression.
-** Terms are separated by AND so add the "AND" text for second and subsequent
-** terms only.
-*/
-static void explainAppendTerm(
-  StrAccum *pStr,             /* The text expression being built */
-  Index *pIdx,                /* Index to read column names from */
-  int nTerm,                  /* Number of terms */
-  int iTerm,                  /* Zero-based index of first term. */
-  int bAnd,                   /* Non-zero to append " AND " */
-  const char *zOp             /* Name of the operator */
-){
-  int i;
-
-  assert( nTerm>=1 );
-  if( bAnd ) tdsqlite3_str_append(pStr, " AND ", 5);
-
-  if( nTerm>1 ) tdsqlite3_str_append(pStr, "(", 1);
-  for(i=0; i<nTerm; i++){
-    if( i ) tdsqlite3_str_append(pStr, ",", 1);
-    tdsqlite3_str_appendall(pStr, explainIndexColumnName(pIdx, iTerm+i));
-  }
-  if( nTerm>1 ) tdsqlite3_str_append(pStr, ")", 1);
-
-  tdsqlite3_str_append(pStr, zOp, 1);
-
-  if( nTerm>1 ) tdsqlite3_str_append(pStr, "(", 1);
-  for(i=0; i<nTerm; i++){
-    if( i ) tdsqlite3_str_append(pStr, ",", 1);
-    tdsqlite3_str_append(pStr, "?", 1);
-  }
-  if( nTerm>1 ) tdsqlite3_str_append(pStr, ")", 1);
-}
-
-/*
-** Argument pLevel describes a strategy for scanning table pTab. This 
-** function appends text to pStr that describes the subset of table
-** rows scanned by the strategy in the form of an SQL expression.
-**
-** For example, if the query:
-**
-**   SELECT * FROM t1 WHERE a=1 AND b>2;
-**
-** is run and there is an index on (a, b), then this function returns a
-** string similar to:
-**
-**   "a=? AND b>?"
-*/
-static void explainIndexRange(StrAccum *pStr, WhereLoop *pLoop){
-  Index *pIndex = pLoop->u.btree.pIndex;
-  u16 nEq = pLoop->u.btree.nEq;
-  u16 nSkip = pLoop->nSkip;
-  int i, j;
-
-  if( nEq==0 && (pLoop->wsFlags&(WHERE_BTM_LIMIT|WHERE_TOP_LIMIT))==0 ) return;
-  tdsqlite3_str_append(pStr, " (", 2);
-  for(i=0; i<nEq; i++){
-    const char *z = explainIndexColumnName(pIndex, i);
-    if( i ) tdsqlite3_str_append(pStr, " AND ", 5);
-    tdsqlite3_str_appendf(pStr, i>=nSkip ? "%s=?" : "ANY(%s)", z);
-  }
-
-  j = i;
-  if( pLoop->wsFlags&WHERE_BTM_LIMIT ){
-    explainAppendTerm(pStr, pIndex, pLoop->u.btree.nBtm, j, i, ">");
-    i = 1;
-  }
-  if( pLoop->wsFlags&WHERE_TOP_LIMIT ){
-    explainAppendTerm(pStr, pIndex, pLoop->u.btree.nTop, j, i, "<");
-  }
-  tdsqlite3_str_append(pStr, ")", 1);
-}
-
-/*
-** This function is a no-op unless currently processing an EXPLAIN QUERY PLAN
-** command, or if either SQLITE_DEBUG or SQLITE_ENABLE_STMT_SCANSTATUS was
-** defined at compile-time. If it is not a no-op, a single OP_Explain opcode 
-** is added to the output to describe the table scan strategy in pLevel.
-**
-** If an OP_Explain opcode is added to the VM, its address is returned.
-** Otherwise, if no OP_Explain is coded, zero is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3WhereExplainOneScan(
-  Parse *pParse,                  /* Parse context */
-  SrcList *pTabList,              /* Table list this loop refers to */
-  WhereLevel *pLevel,             /* Scan to write OP_Explain opcode for */
-  u16 wctrlFlags                  /* Flags passed to tdsqlite3WhereBegin() */
-){
-  int ret = 0;
-#if !defined(SQLITE_DEBUG) && !defined(SQLITE_ENABLE_STMT_SCANSTATUS)
-  if( tdsqlite3ParseToplevel(pParse)->explain==2 )
-#endif
-  {
-    struct SrcList_item *pItem = &pTabList->a[pLevel->iFrom];
-    Vdbe *v = pParse->pVdbe;      /* VM being constructed */
-    tdsqlite3 *db = pParse->db;     /* Database handle */
-    int isSearch;                 /* True for a SEARCH. False for SCAN. */
-    WhereLoop *pLoop;             /* The controlling WhereLoop object */
-    u32 flags;                    /* Flags that describe this loop */
-    char *zMsg;                   /* Text to add to EQP output */
-    StrAccum str;                 /* EQP output string */
-    char zBuf[100];               /* Initial space for EQP output string */
-
-    pLoop = pLevel->pWLoop;
-    flags = pLoop->wsFlags;
-    if( (flags&WHERE_MULTI_OR) || (wctrlFlags&WHERE_OR_SUBCLAUSE) ) return 0;
-
-    isSearch = (flags&(WHERE_BTM_LIMIT|WHERE_TOP_LIMIT))!=0
-            || ((flags&WHERE_VIRTUALTABLE)==0 && (pLoop->u.btree.nEq>0))
-            || (wctrlFlags&(WHERE_ORDERBY_MIN|WHERE_ORDERBY_MAX));
-
-    tdsqlite3StrAccumInit(&str, db, zBuf, sizeof(zBuf), SQLITE_MAX_LENGTH);
-    tdsqlite3_str_appendall(&str, isSearch ? "SEARCH" : "SCAN");
-    if( pItem->pSelect ){
-      tdsqlite3_str_appendf(&str, " SUBQUERY %u", pItem->pSelect->selId);
-    }else{
-      tdsqlite3_str_appendf(&str, " TABLE %s", pItem->zName);
-    }
-
-    if( pItem->zAlias ){
-      tdsqlite3_str_appendf(&str, " AS %s", pItem->zAlias);
-    }
-    if( (flags & (WHERE_IPK|WHERE_VIRTUALTABLE))==0 ){
-      const char *zFmt = 0;
-      Index *pIdx;
-
-      assert( pLoop->u.btree.pIndex!=0 );
-      pIdx = pLoop->u.btree.pIndex;
-      assert( !(flags&WHERE_AUTO_INDEX) || (flags&WHERE_IDX_ONLY) );
-      if( !HasRowid(pItem->pTab) && IsPrimaryKeyIndex(pIdx) ){
-        if( isSearch ){
-          zFmt = "PRIMARY KEY";
-        }
-      }else if( flags & WHERE_PARTIALIDX ){
-        zFmt = "AUTOMATIC PARTIAL COVERING INDEX";
-      }else if( flags & WHERE_AUTO_INDEX ){
-        zFmt = "AUTOMATIC COVERING INDEX";
-      }else if( flags & WHERE_IDX_ONLY ){
-        zFmt = "COVERING INDEX %s";
-      }else{
-        zFmt = "INDEX %s";
-      }
-      if( zFmt ){
-        tdsqlite3_str_append(&str, " USING ", 7);
-        tdsqlite3_str_appendf(&str, zFmt, pIdx->zName);
-        explainIndexRange(&str, pLoop);
-      }
-    }else if( (flags & WHERE_IPK)!=0 && (flags & WHERE_CONSTRAINT)!=0 ){
-      const char *zRangeOp;
-      if( flags&(WHERE_COLUMN_EQ|WHERE_COLUMN_IN) ){
-        zRangeOp = "=";
-      }else if( (flags&WHERE_BOTH_LIMIT)==WHERE_BOTH_LIMIT ){
-        zRangeOp = ">? AND rowid<";
-      }else if( flags&WHERE_BTM_LIMIT ){
-        zRangeOp = ">";
-      }else{
-        assert( flags&WHERE_TOP_LIMIT);
-        zRangeOp = "<";
-      }
-      tdsqlite3_str_appendf(&str, 
-          " USING INTEGER PRIMARY KEY (rowid%s?)",zRangeOp);
-    }
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    else if( (flags & WHERE_VIRTUALTABLE)!=0 ){
-      tdsqlite3_str_appendf(&str, " VIRTUAL TABLE INDEX %d:%s",
-                  pLoop->u.vtab.idxNum, pLoop->u.vtab.idxStr);
-    }
-#endif
-#ifdef SQLITE_EXPLAIN_ESTIMATED_ROWS
-    if( pLoop->nOut>=10 ){
-      tdsqlite3_str_appendf(&str, " (~%llu rows)",
-             tdsqlite3LogEstToInt(pLoop->nOut));
-    }else{
-      tdsqlite3_str_append(&str, " (~1 row)", 9);
-    }
-#endif
-    zMsg = tdsqlite3StrAccumFinish(&str);
-    tdsqlite3ExplainBreakpoint("",zMsg);
-    ret = tdsqlite3VdbeAddOp4(v, OP_Explain, tdsqlite3VdbeCurrentAddr(v),
-                            pParse->addrExplain, 0, zMsg,P4_DYNAMIC);
-  }
-  return ret;
-}
-#endif /* SQLITE_OMIT_EXPLAIN */
-
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-/*
-** Configure the VM passed as the first argument with an
-** tdsqlite3_stmt_scanstatus() entry corresponding to the scan used to 
-** implement level pLvl. Argument pSrclist is a pointer to the FROM 
-** clause that the scan reads data from.
-**
-** If argument addrExplain is not 0, it must be the address of an 
-** OP_Explain instruction that describes the same loop.
-*/
-SQLITE_PRIVATE void tdsqlite3WhereAddScanStatus(
-  Vdbe *v,                        /* Vdbe to add scanstatus entry to */
-  SrcList *pSrclist,              /* FROM clause pLvl reads data from */
-  WhereLevel *pLvl,               /* Level to add scanstatus() entry for */
-  int addrExplain                 /* Address of OP_Explain (or 0) */
-){
-  const char *zObj = 0;
-  WhereLoop *pLoop = pLvl->pWLoop;
-  if( (pLoop->wsFlags & WHERE_VIRTUALTABLE)==0  &&  pLoop->u.btree.pIndex!=0 ){
-    zObj = pLoop->u.btree.pIndex->zName;
-  }else{
-    zObj = pSrclist->a[pLvl->iFrom].zName;
-  }
-  tdsqlite3VdbeScanStatus(
-      v, addrExplain, pLvl->addrBody, pLvl->addrVisit, pLoop->nOut, zObj
-  );
-}
-#endif
-
-
-/*
-** Disable a term in the WHERE clause.  Except, do not disable the term
-** if it controls a LEFT OUTER JOIN and it did not originate in the ON
-** or USING clause of that join.
-**
-** Consider the term t2.z='ok' in the following queries:
-**
-**   (1)  SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.x WHERE t2.z='ok'
-**   (2)  SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.x AND t2.z='ok'
-**   (3)  SELECT * FROM t1, t2 WHERE t1.a=t2.x AND t2.z='ok'
-**
-** The t2.z='ok' is disabled in the in (2) because it originates
-** in the ON clause.  The term is disabled in (3) because it is not part
-** of a LEFT OUTER JOIN.  In (1), the term is not disabled.
-**
-** Disabling a term causes that term to not be tested in the inner loop
-** of the join.  Disabling is an optimization.  When terms are satisfied
-** by indices, we disable them to prevent redundant tests in the inner
-** loop.  We would get the correct results if nothing were ever disabled,
-** but joins might run a little slower.  The trick is to disable as much
-** as we can without disabling too much.  If we disabled in (1), we'd get
-** the wrong answer.  See ticket #813.
-**
-** If all the children of a term are disabled, then that term is also
-** automatically disabled.  In this way, terms get disabled if derived
-** virtual terms are tested first.  For example:
-**
-**      x GLOB 'abc*' AND x>='abc' AND x<'acd'
-**      \___________/     \______/     \_____/
-**         parent          child1       child2
-**
-** Only the parent term was in the original WHERE clause.  The child1
-** and child2 terms were added by the LIKE optimization.  If both of
-** the virtual child terms are valid, then testing of the parent can be 
-** skipped.
-**
-** Usually the parent term is marked as TERM_CODED.  But if the parent
-** term was originally TERM_LIKE, then the parent gets TERM_LIKECOND instead.
-** The TERM_LIKECOND marking indicates that the term should be coded inside
-** a conditional such that is only evaluated on the second pass of a
-** LIKE-optimization loop, when scanning BLOBs instead of strings.
-*/
-static void disableTerm(WhereLevel *pLevel, WhereTerm *pTerm){
-  int nLoop = 0;
-  assert( pTerm!=0 );
-  while( (pTerm->wtFlags & TERM_CODED)==0
-      && (pLevel->iLeftJoin==0 || ExprHasProperty(pTerm->pExpr, EP_FromJoin))
-      && (pLevel->notReady & pTerm->prereqAll)==0
-  ){
-    if( nLoop && (pTerm->wtFlags & TERM_LIKE)!=0 ){
-      pTerm->wtFlags |= TERM_LIKECOND;
-    }else{
-      pTerm->wtFlags |= TERM_CODED;
-    }
-    if( pTerm->iParent<0 ) break;
-    pTerm = &pTerm->pWC->a[pTerm->iParent];
-    assert( pTerm!=0 );
-    pTerm->nChild--;
-    if( pTerm->nChild!=0 ) break;
-    nLoop++;
-  }
-}
-
-/*
-** Code an OP_Affinity opcode to apply the column affinity string zAff
-** to the n registers starting at base. 
-**
-** As an optimization, SQLITE_AFF_BLOB and SQLITE_AFF_NONE entries (which
-** are no-ops) at the beginning and end of zAff are ignored.  If all entries
-** in zAff are SQLITE_AFF_BLOB or SQLITE_AFF_NONE, then no code gets generated.
-**
-** This routine makes its own copy of zAff so that the caller is free
-** to modify zAff after this routine returns.
-*/
-static void codeApplyAffinity(Parse *pParse, int base, int n, char *zAff){
-  Vdbe *v = pParse->pVdbe;
-  if( zAff==0 ){
-    assert( pParse->db->mallocFailed );
-    return;
-  }
-  assert( v!=0 );
-
-  /* Adjust base and n to skip over SQLITE_AFF_BLOB and SQLITE_AFF_NONE
-  ** entries at the beginning and end of the affinity string.
-  */
-  assert( SQLITE_AFF_NONE<SQLITE_AFF_BLOB );
-  while( n>0 && zAff[0]<=SQLITE_AFF_BLOB ){
-    n--;
-    base++;
-    zAff++;
-  }
-  while( n>1 && zAff[n-1]<=SQLITE_AFF_BLOB ){
-    n--;
-  }
-
-  /* Code the OP_Affinity opcode if there is anything left to do. */
-  if( n>0 ){
-    tdsqlite3VdbeAddOp4(v, OP_Affinity, base, n, 0, zAff, n);
-  }
-}
-
-/*
-** Expression pRight, which is the RHS of a comparison operation, is 
-** either a vector of n elements or, if n==1, a scalar expression.
-** Before the comparison operation, affinity zAff is to be applied
-** to the pRight values. This function modifies characters within the
-** affinity string to SQLITE_AFF_BLOB if either:
-**
-**   * the comparison will be performed with no affinity, or
-**   * the affinity change in zAff is guaranteed not to change the value.
-*/
-static void updateRangeAffinityStr(
-  Expr *pRight,                   /* RHS of comparison */
-  int n,                          /* Number of vector elements in comparison */
-  char *zAff                      /* Affinity string to modify */
-){
-  int i;
-  for(i=0; i<n; i++){
-    Expr *p = tdsqlite3VectorFieldSubexpr(pRight, i);
-    if( tdsqlite3CompareAffinity(p, zAff[i])==SQLITE_AFF_BLOB
-     || tdsqlite3ExprNeedsNoAffinityChange(p, zAff[i])
-    ){
-      zAff[i] = SQLITE_AFF_BLOB;
-    }
-  }
-}
-
-
-/*
-** pX is an expression of the form:  (vector) IN (SELECT ...)
-** In other words, it is a vector IN operator with a SELECT clause on the
-** LHS.  But not all terms in the vector are indexable and the terms might
-** not be in the correct order for indexing.
-**
-** This routine makes a copy of the input pX expression and then adjusts
-** the vector on the LHS with corresponding changes to the SELECT so that
-** the vector contains only index terms and those terms are in the correct
-** order.  The modified IN expression is returned.  The caller is responsible
-** for deleting the returned expression.
-**
-** Example:
-**
-**    CREATE TABLE t1(a,b,c,d,e,f);
-**    CREATE INDEX t1x1 ON t1(e,c);
-**    SELECT * FROM t1 WHERE (a,b,c,d,e) IN (SELECT v,w,x,y,z FROM t2)
-**                           \_______________________________________/
-**                                     The pX expression
-**
-** Since only columns e and c can be used with the index, in that order,
-** the modified IN expression that is returned will be:
-**
-**        (e,c) IN (SELECT z,x FROM t2)
-**
-** The reduced pX is different from the original (obviously) and thus is
-** only used for indexing, to improve performance.  The original unaltered
-** IN expression must also be run on each output row for correctness.
-*/
-static Expr *removeUnindexableInClauseTerms(
-  Parse *pParse,        /* The parsing context */
-  int iEq,              /* Look at loop terms starting here */
-  WhereLoop *pLoop,     /* The current loop */
-  Expr *pX              /* The IN expression to be reduced */
-){
-  tdsqlite3 *db = pParse->db;
-  Expr *pNew;
-  pNew = tdsqlite3ExprDup(db, pX, 0);
-  if( db->mallocFailed==0 ){
-    ExprList *pOrigRhs = pNew->x.pSelect->pEList;  /* Original unmodified RHS */
-    ExprList *pOrigLhs = pNew->pLeft->x.pList;     /* Original unmodified LHS */
-    ExprList *pRhs = 0;         /* New RHS after modifications */
-    ExprList *pLhs = 0;         /* New LHS after mods */
-    int i;                      /* Loop counter */
-    Select *pSelect;            /* Pointer to the SELECT on the RHS */
-
-    for(i=iEq; i<pLoop->nLTerm; i++){
-      if( pLoop->aLTerm[i]->pExpr==pX ){
-        int iField = pLoop->aLTerm[i]->iField - 1;
-        if( pOrigRhs->a[iField].pExpr==0 ) continue; /* Duplicate PK column */
-        pRhs = tdsqlite3ExprListAppend(pParse, pRhs, pOrigRhs->a[iField].pExpr);
-        pOrigRhs->a[iField].pExpr = 0;
-        assert( pOrigLhs->a[iField].pExpr!=0 );
-        pLhs = tdsqlite3ExprListAppend(pParse, pLhs, pOrigLhs->a[iField].pExpr);
-        pOrigLhs->a[iField].pExpr = 0;
-      }
-    }
-    tdsqlite3ExprListDelete(db, pOrigRhs);
-    tdsqlite3ExprListDelete(db, pOrigLhs);
-    pNew->pLeft->x.pList = pLhs;
-    pNew->x.pSelect->pEList = pRhs;
-    if( pLhs && pLhs->nExpr==1 ){
-      /* Take care here not to generate a TK_VECTOR containing only a
-      ** single value. Since the parser never creates such a vector, some
-      ** of the subroutines do not handle this case.  */
-      Expr *p = pLhs->a[0].pExpr;
-      pLhs->a[0].pExpr = 0;
-      tdsqlite3ExprDelete(db, pNew->pLeft);
-      pNew->pLeft = p;
-    }
-    pSelect = pNew->x.pSelect;
-    if( pSelect->pOrderBy ){
-      /* If the SELECT statement has an ORDER BY clause, zero the 
-      ** iOrderByCol variables. These are set to non-zero when an 
-      ** ORDER BY term exactly matches one of the terms of the 
-      ** result-set. Since the result-set of the SELECT statement may
-      ** have been modified or reordered, these variables are no longer 
-      ** set correctly.  Since setting them is just an optimization, 
-      ** it's easiest just to zero them here.  */
-      ExprList *pOrderBy = pSelect->pOrderBy;
-      for(i=0; i<pOrderBy->nExpr; i++){
-        pOrderBy->a[i].u.x.iOrderByCol = 0;
-      }
-    }
-
-#if 0
-    printf("For indexing, change the IN expr:\n");
-    tdsqlite3TreeViewExpr(0, pX, 0);
-    printf("Into:\n");
-    tdsqlite3TreeViewExpr(0, pNew, 0);
-#endif
-  }
-  return pNew;
-}
-
-
-/*
-** Generate code for a single equality term of the WHERE clause.  An equality
-** term can be either X=expr or X IN (...).   pTerm is the term to be 
-** coded.
-**
-** The current value for the constraint is left in a register, the index
-** of which is returned.  An attempt is made store the result in iTarget but
-** this is only guaranteed for TK_ISNULL and TK_IN constraints.  If the
-** constraint is a TK_EQ or TK_IS, then the current value might be left in
-** some other register and it is the caller's responsibility to compensate.
-**
-** For a constraint of the form X=expr, the expression is evaluated in
-** straight-line code.  For constraints of the form X IN (...)
-** this routine sets up a loop that will iterate over all values of X.
-*/
-static int codeEqualityTerm(
-  Parse *pParse,      /* The parsing context */
-  WhereTerm *pTerm,   /* The term of the WHERE clause to be coded */
-  WhereLevel *pLevel, /* The level of the FROM clause we are working on */
-  int iEq,            /* Index of the equality term within this level */
-  int bRev,           /* True for reverse-order IN operations */
-  int iTarget         /* Attempt to leave results in this register */
-){
-  Expr *pX = pTerm->pExpr;
-  Vdbe *v = pParse->pVdbe;
-  int iReg;                  /* Register holding results */
-
-  assert( pLevel->pWLoop->aLTerm[iEq]==pTerm );
-  assert( iTarget>0 );
-  if( pX->op==TK_EQ || pX->op==TK_IS ){
-    iReg = tdsqlite3ExprCodeTarget(pParse, pX->pRight, iTarget);
-  }else if( pX->op==TK_ISNULL ){
-    iReg = iTarget;
-    tdsqlite3VdbeAddOp2(v, OP_Null, 0, iReg);
-#ifndef SQLITE_OMIT_SUBQUERY
-  }else{
-    int eType = IN_INDEX_NOOP;
-    int iTab;
-    struct InLoop *pIn;
-    WhereLoop *pLoop = pLevel->pWLoop;
-    int i;
-    int nEq = 0;
-    int *aiMap = 0;
-
-    if( (pLoop->wsFlags & WHERE_VIRTUALTABLE)==0
-      && pLoop->u.btree.pIndex!=0
-      && pLoop->u.btree.pIndex->aSortOrder[iEq]
-    ){
-      testcase( iEq==0 );
-      testcase( bRev );
-      bRev = !bRev;
-    }
-    assert( pX->op==TK_IN );
-    iReg = iTarget;
-
-    for(i=0; i<iEq; i++){
-      if( pLoop->aLTerm[i] && pLoop->aLTerm[i]->pExpr==pX ){
-        disableTerm(pLevel, pTerm);
-        return iTarget;
-      }
-    }
-    for(i=iEq;i<pLoop->nLTerm; i++){
-      assert( pLoop->aLTerm[i]!=0 );
-      if( pLoop->aLTerm[i]->pExpr==pX ) nEq++;
-    }
-
-    iTab = 0;
-    if( (pX->flags & EP_xIsSelect)==0 || pX->x.pSelect->pEList->nExpr==1 ){
-      eType = tdsqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, 0, &iTab);
-    }else{
-      tdsqlite3 *db = pParse->db;
-      pX = removeUnindexableInClauseTerms(pParse, iEq, pLoop, pX);
-
-      if( !db->mallocFailed ){
-        aiMap = (int*)tdsqlite3DbMallocZero(pParse->db, sizeof(int)*nEq);
-        eType = tdsqlite3FindInIndex(pParse, pX, IN_INDEX_LOOP, 0, aiMap, &iTab);
-        pTerm->pExpr->iTable = iTab;
-      }
-      tdsqlite3ExprDelete(db, pX);
-      pX = pTerm->pExpr;
-    }
-
-    if( eType==IN_INDEX_INDEX_DESC ){
-      testcase( bRev );
-      bRev = !bRev;
-    }
-    tdsqlite3VdbeAddOp2(v, bRev ? OP_Last : OP_Rewind, iTab, 0);
-    VdbeCoverageIf(v, bRev);
-    VdbeCoverageIf(v, !bRev);
-    assert( (pLoop->wsFlags & WHERE_MULTI_OR)==0 );
-
-    pLoop->wsFlags |= WHERE_IN_ABLE;
-    if( pLevel->u.in.nIn==0 ){
-      pLevel->addrNxt = tdsqlite3VdbeMakeLabel(pParse);
-    }
-
-    i = pLevel->u.in.nIn;
-    pLevel->u.in.nIn += nEq;
-    pLevel->u.in.aInLoop =
-       tdsqlite3DbReallocOrFree(pParse->db, pLevel->u.in.aInLoop,
-                              sizeof(pLevel->u.in.aInLoop[0])*pLevel->u.in.nIn);
-    pIn = pLevel->u.in.aInLoop;
-    if( pIn ){
-      int iMap = 0;               /* Index in aiMap[] */
-      pIn += i;
-      for(i=iEq;i<pLoop->nLTerm; i++){
-        if( pLoop->aLTerm[i]->pExpr==pX ){
-          int iOut = iReg + i - iEq;
-          if( eType==IN_INDEX_ROWID ){
-            pIn->addrInTop = tdsqlite3VdbeAddOp2(v, OP_Rowid, iTab, iOut);
-          }else{
-            int iCol = aiMap ? aiMap[iMap++] : 0;
-            pIn->addrInTop = tdsqlite3VdbeAddOp3(v,OP_Column,iTab, iCol, iOut);
-          }
-          tdsqlite3VdbeAddOp1(v, OP_IsNull, iOut); VdbeCoverage(v);
-          if( i==iEq ){
-            pIn->iCur = iTab;
-            pIn->eEndLoopOp = bRev ? OP_Prev : OP_Next;
-            if( iEq>0 ){
-              pIn->iBase = iReg - i;
-              pIn->nPrefix = i;
-              pLoop->wsFlags |= WHERE_IN_EARLYOUT;
-            }else{
-              pIn->nPrefix = 0;
-            }
-          }else{
-            pIn->eEndLoopOp = OP_Noop;
-          }
-          pIn++;
-        }
-      }
-    }else{
-      pLevel->u.in.nIn = 0;
-    }
-    tdsqlite3DbFree(pParse->db, aiMap);
-#endif
-  }
-  disableTerm(pLevel, pTerm);
-  return iReg;
-}
-
-/*
-** Generate code that will evaluate all == and IN constraints for an
-** index scan.
-**
-** For example, consider table t1(a,b,c,d,e,f) with index i1(a,b,c).
-** Suppose the WHERE clause is this:  a==5 AND b IN (1,2,3) AND c>5 AND c<10
-** The index has as many as three equality constraints, but in this
-** example, the third "c" value is an inequality.  So only two 
-** constraints are coded.  This routine will generate code to evaluate
-** a==5 and b IN (1,2,3).  The current values for a and b will be stored
-** in consecutive registers and the index of the first register is returned.
-**
-** In the example above nEq==2.  But this subroutine works for any value
-** of nEq including 0.  If nEq==0, this routine is nearly a no-op.
-** The only thing it does is allocate the pLevel->iMem memory cell and
-** compute the affinity string.
-**
-** The nExtraReg parameter is 0 or 1.  It is 0 if all WHERE clause constraints
-** are == or IN and are covered by the nEq.  nExtraReg is 1 if there is
-** an inequality constraint (such as the "c>=5 AND c<10" in the example) that
-** occurs after the nEq quality constraints.
-**
-** This routine allocates a range of nEq+nExtraReg memory cells and returns
-** the index of the first memory cell in that range. The code that
-** calls this routine will use that memory range to store keys for
-** start and termination conditions of the loop.
-** key value of the loop.  If one or more IN operators appear, then
-** this routine allocates an additional nEq memory cells for internal
-** use.
-**
-** Before returning, *pzAff is set to point to a buffer containing a
-** copy of the column affinity string of the index allocated using
-** tdsqlite3DbMalloc(). Except, entries in the copy of the string associated
-** with equality constraints that use BLOB or NONE affinity are set to
-** SQLITE_AFF_BLOB. This is to deal with SQL such as the following:
-**
-**   CREATE TABLE t1(a TEXT PRIMARY KEY, b);
-**   SELECT ... FROM t1 AS t2, t1 WHERE t1.a = t2.b;
-**
-** In the example above, the index on t1(a) has TEXT affinity. But since
-** the right hand side of the equality constraint (t2.b) has BLOB/NONE affinity,
-** no conversion should be attempted before using a t2.b value as part of
-** a key to search the index. Hence the first byte in the returned affinity
-** string in this example would be set to SQLITE_AFF_BLOB.
-*/
-static int codeAllEqualityTerms(
-  Parse *pParse,        /* Parsing context */
-  WhereLevel *pLevel,   /* Which nested loop of the FROM we are coding */
-  int bRev,             /* Reverse the order of IN operators */
-  int nExtraReg,        /* Number of extra registers to allocate */
-  char **pzAff          /* OUT: Set to point to affinity string */
-){
-  u16 nEq;                      /* The number of == or IN constraints to code */
-  u16 nSkip;                    /* Number of left-most columns to skip */
-  Vdbe *v = pParse->pVdbe;      /* The vm under construction */
-  Index *pIdx;                  /* The index being used for this loop */
-  WhereTerm *pTerm;             /* A single constraint term */
-  WhereLoop *pLoop;             /* The WhereLoop object */
-  int j;                        /* Loop counter */
-  int regBase;                  /* Base register */
-  int nReg;                     /* Number of registers to allocate */
-  char *zAff;                   /* Affinity string to return */
-
-  /* This module is only called on query plans that use an index. */
-  pLoop = pLevel->pWLoop;
-  assert( (pLoop->wsFlags & WHERE_VIRTUALTABLE)==0 );
-  nEq = pLoop->u.btree.nEq;
-  nSkip = pLoop->nSkip;
-  pIdx = pLoop->u.btree.pIndex;
-  assert( pIdx!=0 );
-
-  /* Figure out how many memory cells we will need then allocate them.
-  */
-  regBase = pParse->nMem + 1;
-  nReg = pLoop->u.btree.nEq + nExtraReg;
-  pParse->nMem += nReg;
-
-  zAff = tdsqlite3DbStrDup(pParse->db,tdsqlite3IndexAffinityStr(pParse->db,pIdx));
-  assert( zAff!=0 || pParse->db->mallocFailed );
-
-  if( nSkip ){
-    int iIdxCur = pLevel->iIdxCur;
-    tdsqlite3VdbeAddOp1(v, (bRev?OP_Last:OP_Rewind), iIdxCur);
-    VdbeCoverageIf(v, bRev==0);
-    VdbeCoverageIf(v, bRev!=0);
-    VdbeComment((v, "begin skip-scan on %s", pIdx->zName));
-    j = tdsqlite3VdbeAddOp0(v, OP_Goto);
-    pLevel->addrSkip = tdsqlite3VdbeAddOp4Int(v, (bRev?OP_SeekLT:OP_SeekGT),
-                            iIdxCur, 0, regBase, nSkip);
-    VdbeCoverageIf(v, bRev==0);
-    VdbeCoverageIf(v, bRev!=0);
-    tdsqlite3VdbeJumpHere(v, j);
-    for(j=0; j<nSkip; j++){
-      tdsqlite3VdbeAddOp3(v, OP_Column, iIdxCur, j, regBase+j);
-      testcase( pIdx->aiColumn[j]==XN_EXPR );
-      VdbeComment((v, "%s", explainIndexColumnName(pIdx, j)));
-    }
-  }    
-
-  /* Evaluate the equality constraints
-  */
-  assert( zAff==0 || (int)strlen(zAff)>=nEq );
-  for(j=nSkip; j<nEq; j++){
-    int r1;
-    pTerm = pLoop->aLTerm[j];
-    assert( pTerm!=0 );
-    /* The following testcase is true for indices with redundant columns. 
-    ** Ex: CREATE INDEX i1 ON t1(a,b,a); SELECT * FROM t1 WHERE a=0 AND b=0; */
-    testcase( (pTerm->wtFlags & TERM_CODED)!=0 );
-    testcase( pTerm->wtFlags & TERM_VIRTUAL );
-    r1 = codeEqualityTerm(pParse, pTerm, pLevel, j, bRev, regBase+j);
-    if( r1!=regBase+j ){
-      if( nReg==1 ){
-        tdsqlite3ReleaseTempReg(pParse, regBase);
-        regBase = r1;
-      }else{
-        tdsqlite3VdbeAddOp2(v, OP_SCopy, r1, regBase+j);
-      }
-    }
-    if( pTerm->eOperator & WO_IN ){
-      if( pTerm->pExpr->flags & EP_xIsSelect ){
-        /* No affinity ever needs to be (or should be) applied to a value
-        ** from the RHS of an "? IN (SELECT ...)" expression. The 
-        ** tdsqlite3FindInIndex() routine has already ensured that the 
-        ** affinity of the comparison has been applied to the value.  */
-        if( zAff ) zAff[j] = SQLITE_AFF_BLOB;
-      }
-    }else if( (pTerm->eOperator & WO_ISNULL)==0 ){
-      Expr *pRight = pTerm->pExpr->pRight;
-      if( (pTerm->wtFlags & TERM_IS)==0 && tdsqlite3ExprCanBeNull(pRight) ){
-        tdsqlite3VdbeAddOp2(v, OP_IsNull, regBase+j, pLevel->addrBrk);
-        VdbeCoverage(v);
-      }
-      if( zAff ){
-        if( tdsqlite3CompareAffinity(pRight, zAff[j])==SQLITE_AFF_BLOB ){
-          zAff[j] = SQLITE_AFF_BLOB;
-        }
-        if( tdsqlite3ExprNeedsNoAffinityChange(pRight, zAff[j]) ){
-          zAff[j] = SQLITE_AFF_BLOB;
-        }
-      }
-    }
-  }
-  *pzAff = zAff;
-  return regBase;
-}
-
-#ifndef SQLITE_LIKE_DOESNT_MATCH_BLOBS
-/*
-** If the most recently coded instruction is a constant range constraint
-** (a string literal) that originated from the LIKE optimization, then 
-** set P3 and P5 on the OP_String opcode so that the string will be cast
-** to a BLOB at appropriate times.
-**
-** The LIKE optimization trys to evaluate "x LIKE 'abc%'" as a range
-** expression: "x>='ABC' AND x<'abd'".  But this requires that the range
-** scan loop run twice, once for strings and a second time for BLOBs.
-** The OP_String opcodes on the second pass convert the upper and lower
-** bound string constants to blobs.  This routine makes the necessary changes
-** to the OP_String opcodes for that to happen.
-**
-** Except, of course, if SQLITE_LIKE_DOESNT_MATCH_BLOBS is defined, then
-** only the one pass through the string space is required, so this routine
-** becomes a no-op.
-*/
-static void whereLikeOptimizationStringFixup(
-  Vdbe *v,                /* prepared statement under construction */
-  WhereLevel *pLevel,     /* The loop that contains the LIKE operator */
-  WhereTerm *pTerm        /* The upper or lower bound just coded */
-){
-  if( pTerm->wtFlags & TERM_LIKEOPT ){
-    VdbeOp *pOp;
-    assert( pLevel->iLikeRepCntr>0 );
-    pOp = tdsqlite3VdbeGetOp(v, -1);
-    assert( pOp!=0 );
-    assert( pOp->opcode==OP_String8 
-            || pTerm->pWC->pWInfo->pParse->db->mallocFailed );
-    pOp->p3 = (int)(pLevel->iLikeRepCntr>>1);  /* Register holding counter */
-    pOp->p5 = (u8)(pLevel->iLikeRepCntr&1);    /* ASC or DESC */
-  }
-}
-#else
-# define whereLikeOptimizationStringFixup(A,B,C)
-#endif
-
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-/*
-** Information is passed from codeCursorHint() down to individual nodes of
-** the expression tree (by tdsqlite3WalkExpr()) using an instance of this
-** structure.
-*/
-struct CCurHint {
-  int iTabCur;    /* Cursor for the main table */
-  int iIdxCur;    /* Cursor for the index, if pIdx!=0.  Unused otherwise */
-  Index *pIdx;    /* The index used to access the table */
-};
-
-/*
-** This function is called for every node of an expression that is a candidate
-** for a cursor hint on an index cursor.  For TK_COLUMN nodes that reference
-** the table CCurHint.iTabCur, verify that the same column can be
-** accessed through the index.  If it cannot, then set pWalker->eCode to 1.
-*/
-static int codeCursorHintCheckExpr(Walker *pWalker, Expr *pExpr){
-  struct CCurHint *pHint = pWalker->u.pCCurHint;
-  assert( pHint->pIdx!=0 );
-  if( pExpr->op==TK_COLUMN
-   && pExpr->iTable==pHint->iTabCur
-   && tdsqlite3TableColumnToIndex(pHint->pIdx, pExpr->iColumn)<0
-  ){
-    pWalker->eCode = 1;
-  }
-  return WRC_Continue;
-}
-
-/*
-** Test whether or not expression pExpr, which was part of a WHERE clause,
-** should be included in the cursor-hint for a table that is on the rhs
-** of a LEFT JOIN. Set Walker.eCode to non-zero before returning if the 
-** expression is not suitable.
-**
-** An expression is unsuitable if it might evaluate to non NULL even if
-** a TK_COLUMN node that does affect the value of the expression is set
-** to NULL. For example:
-**
-**   col IS NULL
-**   col IS NOT NULL
-**   coalesce(col, 1)
-**   CASE WHEN col THEN 0 ELSE 1 END
-*/
-static int codeCursorHintIsOrFunction(Walker *pWalker, Expr *pExpr){
-  if( pExpr->op==TK_IS 
-   || pExpr->op==TK_ISNULL || pExpr->op==TK_ISNOT 
-   || pExpr->op==TK_NOTNULL || pExpr->op==TK_CASE 
-  ){
-    pWalker->eCode = 1;
-  }else if( pExpr->op==TK_FUNCTION ){
-    int d1;
-    char d2[4];
-    if( 0==tdsqlite3IsLikeFunction(pWalker->pParse->db, pExpr, &d1, d2) ){
-      pWalker->eCode = 1;
-    }
-  }
-
-  return WRC_Continue;
-}
-
-
-/*
-** This function is called on every node of an expression tree used as an
-** argument to the OP_CursorHint instruction. If the node is a TK_COLUMN
-** that accesses any table other than the one identified by
-** CCurHint.iTabCur, then do the following:
-**
-**   1) allocate a register and code an OP_Column instruction to read 
-**      the specified column into the new register, and
-**
-**   2) transform the expression node to a TK_REGISTER node that reads 
-**      from the newly populated register.
-**
-** Also, if the node is a TK_COLUMN that does access the table idenified
-** by pCCurHint.iTabCur, and an index is being used (which we will
-** know because CCurHint.pIdx!=0) then transform the TK_COLUMN into
-** an access of the index rather than the original table.
-*/
-static int codeCursorHintFixExpr(Walker *pWalker, Expr *pExpr){
-  int rc = WRC_Continue;
-  struct CCurHint *pHint = pWalker->u.pCCurHint;
-  if( pExpr->op==TK_COLUMN ){
-    if( pExpr->iTable!=pHint->iTabCur ){
-      int reg = ++pWalker->pParse->nMem;   /* Register for column value */
-      tdsqlite3ExprCode(pWalker->pParse, pExpr, reg);
-      pExpr->op = TK_REGISTER;
-      pExpr->iTable = reg;
-    }else if( pHint->pIdx!=0 ){
-      pExpr->iTable = pHint->iIdxCur;
-      pExpr->iColumn = tdsqlite3TableColumnToIndex(pHint->pIdx, pExpr->iColumn);
-      assert( pExpr->iColumn>=0 );
-    }
-  }else if( pExpr->op==TK_AGG_FUNCTION ){
-    /* An aggregate function in the WHERE clause of a query means this must
-    ** be a correlated sub-query, and expression pExpr is an aggregate from
-    ** the parent context. Do not walk the function arguments in this case.
-    **
-    ** todo: It should be possible to replace this node with a TK_REGISTER
-    ** expression, as the result of the expression must be stored in a 
-    ** register at this point. The same holds for TK_AGG_COLUMN nodes. */
-    rc = WRC_Prune;
-  }
-  return rc;
-}
-
-/*
-** Insert an OP_CursorHint instruction if it is appropriate to do so.
-*/
-static void codeCursorHint(
-  struct SrcList_item *pTabItem,  /* FROM clause item */
-  WhereInfo *pWInfo,    /* The where clause */
-  WhereLevel *pLevel,   /* Which loop to provide hints for */
-  WhereTerm *pEndRange  /* Hint this end-of-scan boundary term if not NULL */
-){
-  Parse *pParse = pWInfo->pParse;
-  tdsqlite3 *db = pParse->db;
-  Vdbe *v = pParse->pVdbe;
-  Expr *pExpr = 0;
-  WhereLoop *pLoop = pLevel->pWLoop;
-  int iCur;
-  WhereClause *pWC;
-  WhereTerm *pTerm;
-  int i, j;
-  struct CCurHint sHint;
-  Walker sWalker;
-
-  if( OptimizationDisabled(db, SQLITE_CursorHints) ) return;
-  iCur = pLevel->iTabCur;
-  assert( iCur==pWInfo->pTabList->a[pLevel->iFrom].iCursor );
-  sHint.iTabCur = iCur;
-  sHint.iIdxCur = pLevel->iIdxCur;
-  sHint.pIdx = pLoop->u.btree.pIndex;
-  memset(&sWalker, 0, sizeof(sWalker));
-  sWalker.pParse = pParse;
-  sWalker.u.pCCurHint = &sHint;
-  pWC = &pWInfo->sWC;
-  for(i=0; i<pWC->nTerm; i++){
-    pTerm = &pWC->a[i];
-    if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue;
-    if( pTerm->prereqAll & pLevel->notReady ) continue;
-
-    /* Any terms specified as part of the ON(...) clause for any LEFT 
-    ** JOIN for which the current table is not the rhs are omitted
-    ** from the cursor-hint. 
-    **
-    ** If this table is the rhs of a LEFT JOIN, "IS" or "IS NULL" terms 
-    ** that were specified as part of the WHERE clause must be excluded.
-    ** This is to address the following:
-    **
-    **   SELECT ... t1 LEFT JOIN t2 ON (t1.a=t2.b) WHERE t2.c IS NULL;
-    **
-    ** Say there is a single row in t2 that matches (t1.a=t2.b), but its
-    ** t2.c values is not NULL. If the (t2.c IS NULL) constraint is 
-    ** pushed down to the cursor, this row is filtered out, causing
-    ** SQLite to synthesize a row of NULL values. Which does match the
-    ** WHERE clause, and so the query returns a row. Which is incorrect.
-    **
-    ** For the same reason, WHERE terms such as:
-    **
-    **   WHERE 1 = (t2.c IS NULL)
-    **
-    ** are also excluded. See codeCursorHintIsOrFunction() for details.
-    */
-    if( pTabItem->fg.jointype & JT_LEFT ){
-      Expr *pExpr = pTerm->pExpr;
-      if( !ExprHasProperty(pExpr, EP_FromJoin) 
-       || pExpr->iRightJoinTable!=pTabItem->iCursor
-      ){
-        sWalker.eCode = 0;
-        sWalker.xExprCallback = codeCursorHintIsOrFunction;
-        tdsqlite3WalkExpr(&sWalker, pTerm->pExpr);
-        if( sWalker.eCode ) continue;
-      }
-    }else{
-      if( ExprHasProperty(pTerm->pExpr, EP_FromJoin) ) continue;
-    }
-
-    /* All terms in pWLoop->aLTerm[] except pEndRange are used to initialize
-    ** the cursor.  These terms are not needed as hints for a pure range
-    ** scan (that has no == terms) so omit them. */
-    if( pLoop->u.btree.nEq==0 && pTerm!=pEndRange ){
-      for(j=0; j<pLoop->nLTerm && pLoop->aLTerm[j]!=pTerm; j++){}
-      if( j<pLoop->nLTerm ) continue;
-    }
-
-    /* No subqueries or non-deterministic functions allowed */
-    if( tdsqlite3ExprContainsSubquery(pTerm->pExpr) ) continue;
-
-    /* For an index scan, make sure referenced columns are actually in
-    ** the index. */
-    if( sHint.pIdx!=0 ){
-      sWalker.eCode = 0;
-      sWalker.xExprCallback = codeCursorHintCheckExpr;
-      tdsqlite3WalkExpr(&sWalker, pTerm->pExpr);
-      if( sWalker.eCode ) continue;
-    }
-
-    /* If we survive all prior tests, that means this term is worth hinting */
-    pExpr = tdsqlite3ExprAnd(pParse, pExpr, tdsqlite3ExprDup(db, pTerm->pExpr, 0));
-  }
-  if( pExpr!=0 ){
-    sWalker.xExprCallback = codeCursorHintFixExpr;
-    tdsqlite3WalkExpr(&sWalker, pExpr);
-    tdsqlite3VdbeAddOp4(v, OP_CursorHint, 
-                      (sHint.pIdx ? sHint.iIdxCur : sHint.iTabCur), 0, 0,
-                      (const char*)pExpr, P4_EXPR);
-  }
-}
-#else
-# define codeCursorHint(A,B,C,D)  /* No-op */
-#endif /* SQLITE_ENABLE_CURSOR_HINTS */
-
-/*
-** Cursor iCur is open on an intkey b-tree (a table). Register iRowid contains
-** a rowid value just read from cursor iIdxCur, open on index pIdx. This
-** function generates code to do a deferred seek of cursor iCur to the 
-** rowid stored in register iRowid.
-**
-** Normally, this is just:
-**
-**   OP_DeferredSeek $iCur $iRowid
-**
-** However, if the scan currently being coded is a branch of an OR-loop and
-** the statement currently being coded is a SELECT, then P3 of OP_DeferredSeek
-** is set to iIdxCur and P4 is set to point to an array of integers
-** containing one entry for each column of the table cursor iCur is open 
-** on. For each table column, if the column is the i'th column of the 
-** index, then the corresponding array entry is set to (i+1). If the column
-** does not appear in the index at all, the array entry is set to 0.
-*/
-static void codeDeferredSeek(
-  WhereInfo *pWInfo,              /* Where clause context */
-  Index *pIdx,                    /* Index scan is using */
-  int iCur,                       /* Cursor for IPK b-tree */
-  int iIdxCur                     /* Index cursor */
-){
-  Parse *pParse = pWInfo->pParse; /* Parse context */
-  Vdbe *v = pParse->pVdbe;        /* Vdbe to generate code within */
-
-  assert( iIdxCur>0 );
-  assert( pIdx->aiColumn[pIdx->nColumn-1]==-1 );
-  
-  pWInfo->bDeferredSeek = 1;
-  tdsqlite3VdbeAddOp3(v, OP_DeferredSeek, iIdxCur, 0, iCur);
-  if( (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)
-   && DbMaskAllZero(tdsqlite3ParseToplevel(pParse)->writeMask)
-  ){
-    int i;
-    Table *pTab = pIdx->pTable;
-    int *ai = (int*)tdsqlite3DbMallocZero(pParse->db, sizeof(int)*(pTab->nCol+1));
-    if( ai ){
-      ai[0] = pTab->nCol;
-      for(i=0; i<pIdx->nColumn-1; i++){
-        int x1, x2;
-        assert( pIdx->aiColumn[i]<pTab->nCol );
-        x1 = pIdx->aiColumn[i];
-        x2 = tdsqlite3TableColumnToStorage(pTab, x1);
-        testcase( x1!=x2 );
-        if( x1>=0 ) ai[x2+1] = i+1;
-      }
-      tdsqlite3VdbeChangeP4(v, -1, (char*)ai, P4_INTARRAY);
-    }
-  }
-}
-
-/*
-** If the expression passed as the second argument is a vector, generate
-** code to write the first nReg elements of the vector into an array
-** of registers starting with iReg.
-**
-** If the expression is not a vector, then nReg must be passed 1. In
-** this case, generate code to evaluate the expression and leave the
-** result in register iReg.
-*/
-static void codeExprOrVector(Parse *pParse, Expr *p, int iReg, int nReg){
-  assert( nReg>0 );
-  if( p && tdsqlite3ExprIsVector(p) ){
-#ifndef SQLITE_OMIT_SUBQUERY
-    if( (p->flags & EP_xIsSelect) ){
-      Vdbe *v = pParse->pVdbe;
-      int iSelect;
-      assert( p->op==TK_SELECT );
-      iSelect = tdsqlite3CodeSubselect(pParse, p);
-      tdsqlite3VdbeAddOp3(v, OP_Copy, iSelect, iReg, nReg-1);
-    }else
-#endif
-    {
-      int i;
-      ExprList *pList = p->x.pList;
-      assert( nReg<=pList->nExpr );
-      for(i=0; i<nReg; i++){
-        tdsqlite3ExprCode(pParse, pList->a[i].pExpr, iReg+i);
-      }
-    }
-  }else{
-    assert( nReg==1 );
-    tdsqlite3ExprCode(pParse, p, iReg);
-  }
-}
-
-/* An instance of the IdxExprTrans object carries information about a
-** mapping from an expression on table columns into a column in an index
-** down through the Walker.
-*/
-typedef struct IdxExprTrans {
-  Expr *pIdxExpr;    /* The index expression */
-  int iTabCur;       /* The cursor of the corresponding table */
-  int iIdxCur;       /* The cursor for the index */
-  int iIdxCol;       /* The column for the index */
-  int iTabCol;       /* The column for the table */
-  WhereInfo *pWInfo; /* Complete WHERE clause information */
-  tdsqlite3 *db;       /* Database connection (for malloc()) */
-} IdxExprTrans;
-
-/*
-** Preserve pExpr on the WhereETrans list of the WhereInfo.
-*/
-static void preserveExpr(IdxExprTrans *pTrans, Expr *pExpr){
-  WhereExprMod *pNew;
-  pNew = tdsqlite3DbMallocRaw(pTrans->db, sizeof(*pNew));
-  if( pNew==0 ) return;
-  pNew->pNext = pTrans->pWInfo->pExprMods;
-  pTrans->pWInfo->pExprMods = pNew;
-  pNew->pExpr = pExpr;
-  memcpy(&pNew->orig, pExpr, sizeof(*pExpr));
-}
-
-/* The walker node callback used to transform matching expressions into
-** a reference to an index column for an index on an expression.
-**
-** If pExpr matches, then transform it into a reference to the index column
-** that contains the value of pExpr.
-*/
-static int whereIndexExprTransNode(Walker *p, Expr *pExpr){
-  IdxExprTrans *pX = p->u.pIdxTrans;
-  if( tdsqlite3ExprCompare(0, pExpr, pX->pIdxExpr, pX->iTabCur)==0 ){
-    preserveExpr(pX, pExpr);
-    pExpr->affExpr = tdsqlite3ExprAffinity(pExpr);
-    pExpr->op = TK_COLUMN;
-    pExpr->iTable = pX->iIdxCur;
-    pExpr->iColumn = pX->iIdxCol;
-    pExpr->y.pTab = 0;
-    testcase( ExprHasProperty(pExpr, EP_Skip) );
-    testcase( ExprHasProperty(pExpr, EP_Unlikely) );
-    ExprClearProperty(pExpr, EP_Skip|EP_Unlikely);
-    return WRC_Prune;
-  }else{
-    return WRC_Continue;
-  }
-}
-
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-/* A walker node callback that translates a column reference to a table
-** into a corresponding column reference of an index.
-*/
-static int whereIndexExprTransColumn(Walker *p, Expr *pExpr){
-  if( pExpr->op==TK_COLUMN ){
-    IdxExprTrans *pX = p->u.pIdxTrans;
-    if( pExpr->iTable==pX->iTabCur && pExpr->iColumn==pX->iTabCol ){
-      assert( pExpr->y.pTab!=0 );
-      preserveExpr(pX, pExpr);
-      pExpr->affExpr = tdsqlite3TableColumnAffinity(pExpr->y.pTab,pExpr->iColumn);
-      pExpr->iTable = pX->iIdxCur;
-      pExpr->iColumn = pX->iIdxCol;
-      pExpr->y.pTab = 0;
-    }
-  }
-  return WRC_Continue;
-}
-#endif /* SQLITE_OMIT_GENERATED_COLUMNS */
-
-/*
-** For an indexes on expression X, locate every instance of expression X
-** in pExpr and change that subexpression into a reference to the appropriate
-** column of the index.
-**
-** 2019-10-24: Updated to also translate references to a VIRTUAL column in
-** the table into references to the corresponding (stored) column of the
-** index.
-*/
-static void whereIndexExprTrans(
-  Index *pIdx,      /* The Index */
-  int iTabCur,      /* Cursor of the table that is being indexed */
-  int iIdxCur,      /* Cursor of the index itself */
-  WhereInfo *pWInfo /* Transform expressions in this WHERE clause */
-){
-  int iIdxCol;               /* Column number of the index */
-  ExprList *aColExpr;        /* Expressions that are indexed */
-  Table *pTab;
-  Walker w;
-  IdxExprTrans x;
-  aColExpr = pIdx->aColExpr;
-  if( aColExpr==0 && !pIdx->bHasVCol ){
-    /* The index does not reference any expressions or virtual columns
-    ** so no translations are needed. */
-    return;
-  }
-  pTab = pIdx->pTable;
-  memset(&w, 0, sizeof(w));
-  w.u.pIdxTrans = &x;
-  x.iTabCur = iTabCur;
-  x.iIdxCur = iIdxCur;
-  x.pWInfo = pWInfo;
-  x.db = pWInfo->pParse->db;
-  for(iIdxCol=0; iIdxCol<pIdx->nColumn; iIdxCol++){
-    i16 iRef = pIdx->aiColumn[iIdxCol];
-    if( iRef==XN_EXPR ){
-      assert( aColExpr->a[iIdxCol].pExpr!=0 );
-      x.pIdxExpr = aColExpr->a[iIdxCol].pExpr;
-      if( tdsqlite3ExprIsConstant(x.pIdxExpr) ) continue;
-      w.xExprCallback = whereIndexExprTransNode;
-#ifndef SQLITE_OMIT_GENERATED_COLUMNS
-    }else if( iRef>=0
-       && (pTab->aCol[iRef].colFlags & COLFLAG_VIRTUAL)!=0
-       && (pTab->aCol[iRef].zColl==0
-           || tdsqlite3StrICmp(pTab->aCol[iRef].zColl, tdsqlite3StrBINARY)==0)
-    ){
-      /* Check to see if there are direct references to generated columns
-      ** that are contained in the index.  Pulling the generated column
-      ** out of the index is an optimization only - the main table is always
-      ** available if the index cannot be used.  To avoid unnecessary
-      ** complication, omit this optimization if the collating sequence for
-      ** the column is non-standard */
-      x.iTabCol = iRef;
-      w.xExprCallback = whereIndexExprTransColumn;
-#endif /* SQLITE_OMIT_GENERATED_COLUMNS */
-    }else{
-      continue;
-    }
-    x.iIdxCol = iIdxCol;
-    tdsqlite3WalkExpr(&w, pWInfo->pWhere);
-    tdsqlite3WalkExprList(&w, pWInfo->pOrderBy);
-    tdsqlite3WalkExprList(&w, pWInfo->pResultSet);
-  }
-}
-
-/*
-** The pTruth expression is always true because it is the WHERE clause
-** a partial index that is driving a query loop.  Look through all of the
-** WHERE clause terms on the query, and if any of those terms must be
-** true because pTruth is true, then mark those WHERE clause terms as
-** coded.
-*/
-static void whereApplyPartialIndexConstraints(
-  Expr *pTruth,
-  int iTabCur,
-  WhereClause *pWC
-){
-  int i;
-  WhereTerm *pTerm;
-  while( pTruth->op==TK_AND ){
-    whereApplyPartialIndexConstraints(pTruth->pLeft, iTabCur, pWC);
-    pTruth = pTruth->pRight;
-  }
-  for(i=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){
-    Expr *pExpr;
-    if( pTerm->wtFlags & TERM_CODED ) continue;
-    pExpr = pTerm->pExpr;
-    if( tdsqlite3ExprCompare(0, pExpr, pTruth, iTabCur)==0 ){
-      pTerm->wtFlags |= TERM_CODED;
-    }
-  }
-}
-
-/*
-** Generate code for the start of the iLevel-th loop in the WHERE clause
-** implementation described by pWInfo.
-*/
-SQLITE_PRIVATE Bitmask tdsqlite3WhereCodeOneLoopStart(
-  Parse *pParse,       /* Parsing context */
-  Vdbe *v,             /* Prepared statement under construction */
-  WhereInfo *pWInfo,   /* Complete information about the WHERE clause */
-  int iLevel,          /* Which level of pWInfo->a[] should be coded */
-  WhereLevel *pLevel,  /* The current level pointer */
-  Bitmask notReady     /* Which tables are currently available */
-){
-  int j, k;            /* Loop counters */
-  int iCur;            /* The VDBE cursor for the table */
-  int addrNxt;         /* Where to jump to continue with the next IN case */
-  int bRev;            /* True if we need to scan in reverse order */
-  WhereLoop *pLoop;    /* The WhereLoop object being coded */
-  WhereClause *pWC;    /* Decomposition of the entire WHERE clause */
-  WhereTerm *pTerm;               /* A WHERE clause term */
-  tdsqlite3 *db;                    /* Database connection */
-  struct SrcList_item *pTabItem;  /* FROM clause term being coded */
-  int addrBrk;                    /* Jump here to break out of the loop */
-  int addrHalt;                   /* addrBrk for the outermost loop */
-  int addrCont;                   /* Jump here to continue with next cycle */
-  int iRowidReg = 0;        /* Rowid is stored in this register, if not zero */
-  int iReleaseReg = 0;      /* Temp register to free before returning */
-  Index *pIdx = 0;          /* Index used by loop (if any) */
-  int iLoop;                /* Iteration of constraint generator loop */
-
-  pWC = &pWInfo->sWC;
-  db = pParse->db;
-  pLoop = pLevel->pWLoop;
-  pTabItem = &pWInfo->pTabList->a[pLevel->iFrom];
-  iCur = pTabItem->iCursor;
-  pLevel->notReady = notReady & ~tdsqlite3WhereGetMask(&pWInfo->sMaskSet, iCur);
-  bRev = (pWInfo->revMask>>iLevel)&1;
-  VdbeModuleComment((v, "Begin WHERE-loop%d: %s",iLevel,pTabItem->pTab->zName));
-#if WHERETRACE_ENABLED /* 0x20800 */
-  if( tdsqlite3WhereTrace & 0x800 ){
-    tdsqlite3DebugPrintf("Coding level %d of %d:  notReady=%llx  iFrom=%d\n",
-       iLevel, pWInfo->nLevel, (u64)notReady, pLevel->iFrom);
-    tdsqlite3WhereLoopPrint(pLoop, pWC);
-  }
-  if( tdsqlite3WhereTrace & 0x20000 ){
-    if( iLevel==0 ){
-      tdsqlite3DebugPrintf("WHERE clause being coded:\n");
-      tdsqlite3TreeViewExpr(0, pWInfo->pWhere, 0);
-    }
-    tdsqlite3DebugPrintf("All WHERE-clause terms before coding:\n");
-    tdsqlite3WhereClausePrint(pWC);
-  }
-#endif
-
-  /* Create labels for the "break" and "continue" instructions
-  ** for the current loop.  Jump to addrBrk to break out of a loop.
-  ** Jump to cont to go immediately to the next iteration of the
-  ** loop.
-  **
-  ** When there is an IN operator, we also have a "addrNxt" label that
-  ** means to continue with the next IN value combination.  When
-  ** there are no IN operators in the constraints, the "addrNxt" label
-  ** is the same as "addrBrk".
-  */
-  addrBrk = pLevel->addrBrk = pLevel->addrNxt = tdsqlite3VdbeMakeLabel(pParse);
-  addrCont = pLevel->addrCont = tdsqlite3VdbeMakeLabel(pParse);
-
-  /* If this is the right table of a LEFT OUTER JOIN, allocate and
-  ** initialize a memory cell that records if this table matches any
-  ** row of the left table of the join.
-  */
-  assert( (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)
-       || pLevel->iFrom>0 || (pTabItem[0].fg.jointype & JT_LEFT)==0
-  );
-  if( pLevel->iFrom>0 && (pTabItem[0].fg.jointype & JT_LEFT)!=0 ){
-    pLevel->iLeftJoin = ++pParse->nMem;
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pLevel->iLeftJoin);
-    VdbeComment((v, "init LEFT JOIN no-match flag"));
-  }
-
-  /* Compute a safe address to jump to if we discover that the table for
-  ** this loop is empty and can never contribute content. */
-  for(j=iLevel; j>0 && pWInfo->a[j].iLeftJoin==0; j--){}
-  addrHalt = pWInfo->a[j].addrBrk;
-
-  /* Special case of a FROM clause subquery implemented as a co-routine */
-  if( pTabItem->fg.viaCoroutine ){
-    int regYield = pTabItem->regReturn;
-    tdsqlite3VdbeAddOp3(v, OP_InitCoroutine, regYield, 0, pTabItem->addrFillSub);
-    pLevel->p2 =  tdsqlite3VdbeAddOp2(v, OP_Yield, regYield, addrBrk);
-    VdbeCoverage(v);
-    VdbeComment((v, "next row of %s", pTabItem->pTab->zName));
-    pLevel->op = OP_Goto;
-  }else
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  if(  (pLoop->wsFlags & WHERE_VIRTUALTABLE)!=0 ){
-    /* Case 1:  The table is a virtual-table.  Use the VFilter and VNext
-    **          to access the data.
-    */
-    int iReg;   /* P3 Value for OP_VFilter */
-    int addrNotFound;
-    int nConstraint = pLoop->nLTerm;
-    int iIn;    /* Counter for IN constraints */
-
-    iReg = tdsqlite3GetTempRange(pParse, nConstraint+2);
-    addrNotFound = pLevel->addrBrk;
-    for(j=0; j<nConstraint; j++){
-      int iTarget = iReg+j+2;
-      pTerm = pLoop->aLTerm[j];
-      if( NEVER(pTerm==0) ) continue;
-      if( pTerm->eOperator & WO_IN ){
-        codeEqualityTerm(pParse, pTerm, pLevel, j, bRev, iTarget);
-        addrNotFound = pLevel->addrNxt;
-      }else{
-        Expr *pRight = pTerm->pExpr->pRight;
-        codeExprOrVector(pParse, pRight, iTarget, 1);
-      }
-    }
-    tdsqlite3VdbeAddOp2(v, OP_Integer, pLoop->u.vtab.idxNum, iReg);
-    tdsqlite3VdbeAddOp2(v, OP_Integer, nConstraint, iReg+1);
-    tdsqlite3VdbeAddOp4(v, OP_VFilter, iCur, addrNotFound, iReg,
-                      pLoop->u.vtab.idxStr,
-                      pLoop->u.vtab.needFree ? P4_DYNAMIC : P4_STATIC);
-    VdbeCoverage(v);
-    pLoop->u.vtab.needFree = 0;
-    pLevel->p1 = iCur;
-    pLevel->op = pWInfo->eOnePass ? OP_Noop : OP_VNext;
-    pLevel->p2 = tdsqlite3VdbeCurrentAddr(v);
-    iIn = pLevel->u.in.nIn;
-    for(j=nConstraint-1; j>=0; j--){
-      pTerm = pLoop->aLTerm[j];
-      if( (pTerm->eOperator & WO_IN)!=0 ) iIn--;
-      if( j<16 && (pLoop->u.vtab.omitMask>>j)&1 ){
-        disableTerm(pLevel, pTerm);
-      }else if( (pTerm->eOperator & WO_IN)!=0
-        && tdsqlite3ExprVectorSize(pTerm->pExpr->pLeft)==1
-      ){
-        Expr *pCompare;  /* The comparison operator */
-        Expr *pRight;    /* RHS of the comparison */
-        VdbeOp *pOp;     /* Opcode to access the value of the IN constraint */
-
-        /* Reload the constraint value into reg[iReg+j+2].  The same value
-        ** was loaded into the same register prior to the OP_VFilter, but
-        ** the xFilter implementation might have changed the datatype or
-        ** encoding of the value in the register, so it *must* be reloaded. */
-        assert( pLevel->u.in.aInLoop!=0 || db->mallocFailed );
-        if( !db->mallocFailed ){
-          assert( iIn>=0 && iIn<pLevel->u.in.nIn );
-          pOp = tdsqlite3VdbeGetOp(v, pLevel->u.in.aInLoop[iIn].addrInTop);
-          assert( pOp->opcode==OP_Column || pOp->opcode==OP_Rowid );
-          assert( pOp->opcode!=OP_Column || pOp->p3==iReg+j+2 );
-          assert( pOp->opcode!=OP_Rowid || pOp->p2==iReg+j+2 );
-          testcase( pOp->opcode==OP_Rowid );
-          tdsqlite3VdbeAddOp3(v, pOp->opcode, pOp->p1, pOp->p2, pOp->p3);
-        }
-
-        /* Generate code that will continue to the next row if 
-        ** the IN constraint is not satisfied */
-        pCompare = tdsqlite3PExpr(pParse, TK_EQ, 0, 0);
-        assert( pCompare!=0 || db->mallocFailed );
-        if( pCompare ){
-          pCompare->pLeft = pTerm->pExpr->pLeft;
-          pCompare->pRight = pRight = tdsqlite3Expr(db, TK_REGISTER, 0);
-          if( pRight ){
-            pRight->iTable = iReg+j+2;
-            tdsqlite3ExprIfFalse(pParse, pCompare, pLevel->addrCont, 0);
-          }
-          pCompare->pLeft = 0;
-          tdsqlite3ExprDelete(db, pCompare);
-        }
-      }
-    }
-    assert( iIn==0 || db->mallocFailed );
-    /* These registers need to be preserved in case there is an IN operator
-    ** loop.  So we could deallocate the registers here (and potentially
-    ** reuse them later) if (pLoop->wsFlags & WHERE_IN_ABLE)==0.  But it seems
-    ** simpler and safer to simply not reuse the registers.
-    **
-    **    tdsqlite3ReleaseTempRange(pParse, iReg, nConstraint+2);
-    */
-  }else
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-  if( (pLoop->wsFlags & WHERE_IPK)!=0
-   && (pLoop->wsFlags & (WHERE_COLUMN_IN|WHERE_COLUMN_EQ))!=0
-  ){
-    /* Case 2:  We can directly reference a single row using an
-    **          equality comparison against the ROWID field.  Or
-    **          we reference multiple rows using a "rowid IN (...)"
-    **          construct.
-    */
-    assert( pLoop->u.btree.nEq==1 );
-    pTerm = pLoop->aLTerm[0];
-    assert( pTerm!=0 );
-    assert( pTerm->pExpr!=0 );
-    testcase( pTerm->wtFlags & TERM_VIRTUAL );
-    iReleaseReg = ++pParse->nMem;
-    iRowidReg = codeEqualityTerm(pParse, pTerm, pLevel, 0, bRev, iReleaseReg);
-    if( iRowidReg!=iReleaseReg ) tdsqlite3ReleaseTempReg(pParse, iReleaseReg);
-    addrNxt = pLevel->addrNxt;
-    tdsqlite3VdbeAddOp3(v, OP_SeekRowid, iCur, addrNxt, iRowidReg);
-    VdbeCoverage(v);
-    pLevel->op = OP_Noop;
-    if( (pTerm->prereqAll & pLevel->notReady)==0 ){
-      pTerm->wtFlags |= TERM_CODED;
-    }
-  }else if( (pLoop->wsFlags & WHERE_IPK)!=0
-         && (pLoop->wsFlags & WHERE_COLUMN_RANGE)!=0
-  ){
-    /* Case 3:  We have an inequality comparison against the ROWID field.
-    */
-    int testOp = OP_Noop;
-    int start;
-    int memEndValue = 0;
-    WhereTerm *pStart, *pEnd;
-
-    j = 0;
-    pStart = pEnd = 0;
-    if( pLoop->wsFlags & WHERE_BTM_LIMIT ) pStart = pLoop->aLTerm[j++];
-    if( pLoop->wsFlags & WHERE_TOP_LIMIT ) pEnd = pLoop->aLTerm[j++];
-    assert( pStart!=0 || pEnd!=0 );
-    if( bRev ){
-      pTerm = pStart;
-      pStart = pEnd;
-      pEnd = pTerm;
-    }
-    codeCursorHint(pTabItem, pWInfo, pLevel, pEnd);
-    if( pStart ){
-      Expr *pX;             /* The expression that defines the start bound */
-      int r1, rTemp;        /* Registers for holding the start boundary */
-      int op;               /* Cursor seek operation */
-
-      /* The following constant maps TK_xx codes into corresponding 
-      ** seek opcodes.  It depends on a particular ordering of TK_xx
-      */
-      const u8 aMoveOp[] = {
-           /* TK_GT */  OP_SeekGT,
-           /* TK_LE */  OP_SeekLE,
-           /* TK_LT */  OP_SeekLT,
-           /* TK_GE */  OP_SeekGE
-      };
-      assert( TK_LE==TK_GT+1 );      /* Make sure the ordering.. */
-      assert( TK_LT==TK_GT+2 );      /*  ... of the TK_xx values... */
-      assert( TK_GE==TK_GT+3 );      /*  ... is correcct. */
-
-      assert( (pStart->wtFlags & TERM_VNULL)==0 );
-      testcase( pStart->wtFlags & TERM_VIRTUAL );
-      pX = pStart->pExpr;
-      assert( pX!=0 );
-      testcase( pStart->leftCursor!=iCur ); /* transitive constraints */
-      if( tdsqlite3ExprIsVector(pX->pRight) ){
-        r1 = rTemp = tdsqlite3GetTempReg(pParse);
-        codeExprOrVector(pParse, pX->pRight, r1, 1);
-        testcase( pX->op==TK_GT );
-        testcase( pX->op==TK_GE );
-        testcase( pX->op==TK_LT );
-        testcase( pX->op==TK_LE );
-        op = aMoveOp[((pX->op - TK_GT - 1) & 0x3) | 0x1];
-        assert( pX->op!=TK_GT || op==OP_SeekGE );
-        assert( pX->op!=TK_GE || op==OP_SeekGE );
-        assert( pX->op!=TK_LT || op==OP_SeekLE );
-        assert( pX->op!=TK_LE || op==OP_SeekLE );
-      }else{
-        r1 = tdsqlite3ExprCodeTemp(pParse, pX->pRight, &rTemp);
-        disableTerm(pLevel, pStart);
-        op = aMoveOp[(pX->op - TK_GT)];
-      }
-      tdsqlite3VdbeAddOp3(v, op, iCur, addrBrk, r1);
-      VdbeComment((v, "pk"));
-      VdbeCoverageIf(v, pX->op==TK_GT);
-      VdbeCoverageIf(v, pX->op==TK_LE);
-      VdbeCoverageIf(v, pX->op==TK_LT);
-      VdbeCoverageIf(v, pX->op==TK_GE);
-      tdsqlite3ReleaseTempReg(pParse, rTemp);
-    }else{
-      tdsqlite3VdbeAddOp2(v, bRev ? OP_Last : OP_Rewind, iCur, addrHalt);
-      VdbeCoverageIf(v, bRev==0);
-      VdbeCoverageIf(v, bRev!=0);
-    }
-    if( pEnd ){
-      Expr *pX;
-      pX = pEnd->pExpr;
-      assert( pX!=0 );
-      assert( (pEnd->wtFlags & TERM_VNULL)==0 );
-      testcase( pEnd->leftCursor!=iCur ); /* Transitive constraints */
-      testcase( pEnd->wtFlags & TERM_VIRTUAL );
-      memEndValue = ++pParse->nMem;
-      codeExprOrVector(pParse, pX->pRight, memEndValue, 1);
-      if( 0==tdsqlite3ExprIsVector(pX->pRight) 
-       && (pX->op==TK_LT || pX->op==TK_GT) 
-      ){
-        testOp = bRev ? OP_Le : OP_Ge;
-      }else{
-        testOp = bRev ? OP_Lt : OP_Gt;
-      }
-      if( 0==tdsqlite3ExprIsVector(pX->pRight) ){
-        disableTerm(pLevel, pEnd);
-      }
-    }
-    start = tdsqlite3VdbeCurrentAddr(v);
-    pLevel->op = bRev ? OP_Prev : OP_Next;
-    pLevel->p1 = iCur;
-    pLevel->p2 = start;
-    assert( pLevel->p5==0 );
-    if( testOp!=OP_Noop ){
-      iRowidReg = ++pParse->nMem;
-      tdsqlite3VdbeAddOp2(v, OP_Rowid, iCur, iRowidReg);
-      tdsqlite3VdbeAddOp3(v, testOp, memEndValue, addrBrk, iRowidReg);
-      VdbeCoverageIf(v, testOp==OP_Le);
-      VdbeCoverageIf(v, testOp==OP_Lt);
-      VdbeCoverageIf(v, testOp==OP_Ge);
-      VdbeCoverageIf(v, testOp==OP_Gt);
-      tdsqlite3VdbeChangeP5(v, SQLITE_AFF_NUMERIC | SQLITE_JUMPIFNULL);
-    }
-  }else if( pLoop->wsFlags & WHERE_INDEXED ){
-    /* Case 4: A scan using an index.
-    **
-    **         The WHERE clause may contain zero or more equality 
-    **         terms ("==" or "IN" operators) that refer to the N
-    **         left-most columns of the index. It may also contain
-    **         inequality constraints (>, <, >= or <=) on the indexed
-    **         column that immediately follows the N equalities. Only 
-    **         the right-most column can be an inequality - the rest must
-    **         use the "==" and "IN" operators. For example, if the 
-    **         index is on (x,y,z), then the following clauses are all 
-    **         optimized:
-    **
-    **            x=5
-    **            x=5 AND y=10
-    **            x=5 AND y<10
-    **            x=5 AND y>5 AND y<10
-    **            x=5 AND y=5 AND z<=10
-    **
-    **         The z<10 term of the following cannot be used, only
-    **         the x=5 term:
-    **
-    **            x=5 AND z<10
-    **
-    **         N may be zero if there are inequality constraints.
-    **         If there are no inequality constraints, then N is at
-    **         least one.
-    **
-    **         This case is also used when there are no WHERE clause
-    **         constraints but an index is selected anyway, in order
-    **         to force the output order to conform to an ORDER BY.
-    */  
-    static const u8 aStartOp[] = {
-      0,
-      0,
-      OP_Rewind,           /* 2: (!start_constraints && startEq &&  !bRev) */
-      OP_Last,             /* 3: (!start_constraints && startEq &&   bRev) */
-      OP_SeekGT,           /* 4: (start_constraints  && !startEq && !bRev) */
-      OP_SeekLT,           /* 5: (start_constraints  && !startEq &&  bRev) */
-      OP_SeekGE,           /* 6: (start_constraints  &&  startEq && !bRev) */
-      OP_SeekLE            /* 7: (start_constraints  &&  startEq &&  bRev) */
-    };
-    static const u8 aEndOp[] = {
-      OP_IdxGE,            /* 0: (end_constraints && !bRev && !endEq) */
-      OP_IdxGT,            /* 1: (end_constraints && !bRev &&  endEq) */
-      OP_IdxLE,            /* 2: (end_constraints &&  bRev && !endEq) */
-      OP_IdxLT,            /* 3: (end_constraints &&  bRev &&  endEq) */
-    };
-    u16 nEq = pLoop->u.btree.nEq;     /* Number of == or IN terms */
-    u16 nBtm = pLoop->u.btree.nBtm;   /* Length of BTM vector */
-    u16 nTop = pLoop->u.btree.nTop;   /* Length of TOP vector */
-    int regBase;                 /* Base register holding constraint values */
-    WhereTerm *pRangeStart = 0;  /* Inequality constraint at range start */
-    WhereTerm *pRangeEnd = 0;    /* Inequality constraint at range end */
-    int startEq;                 /* True if range start uses ==, >= or <= */
-    int endEq;                   /* True if range end uses ==, >= or <= */
-    int start_constraints;       /* Start of range is constrained */
-    int nConstraint;             /* Number of constraint terms */
-    int iIdxCur;                 /* The VDBE cursor for the index */
-    int nExtraReg = 0;           /* Number of extra registers needed */
-    int op;                      /* Instruction opcode */
-    char *zStartAff;             /* Affinity for start of range constraint */
-    char *zEndAff = 0;           /* Affinity for end of range constraint */
-    u8 bSeekPastNull = 0;        /* True to seek past initial nulls */
-    u8 bStopAtNull = 0;          /* Add condition to terminate at NULLs */
-    int omitTable;               /* True if we use the index only */
-    int regBignull = 0;          /* big-null flag register */
-
-    pIdx = pLoop->u.btree.pIndex;
-    iIdxCur = pLevel->iIdxCur;
-    assert( nEq>=pLoop->nSkip );
-
-    /* Find any inequality constraint terms for the start and end 
-    ** of the range. 
-    */
-    j = nEq;
-    if( pLoop->wsFlags & WHERE_BTM_LIMIT ){
-      pRangeStart = pLoop->aLTerm[j++];
-      nExtraReg = MAX(nExtraReg, pLoop->u.btree.nBtm);
-      /* Like optimization range constraints always occur in pairs */
-      assert( (pRangeStart->wtFlags & TERM_LIKEOPT)==0 || 
-              (pLoop->wsFlags & WHERE_TOP_LIMIT)!=0 );
-    }
-    if( pLoop->wsFlags & WHERE_TOP_LIMIT ){
-      pRangeEnd = pLoop->aLTerm[j++];
-      nExtraReg = MAX(nExtraReg, pLoop->u.btree.nTop);
-#ifndef SQLITE_LIKE_DOESNT_MATCH_BLOBS
-      if( (pRangeEnd->wtFlags & TERM_LIKEOPT)!=0 ){
-        assert( pRangeStart!=0 );                     /* LIKE opt constraints */
-        assert( pRangeStart->wtFlags & TERM_LIKEOPT );   /* occur in pairs */
-        pLevel->iLikeRepCntr = (u32)++pParse->nMem;
-        tdsqlite3VdbeAddOp2(v, OP_Integer, 1, (int)pLevel->iLikeRepCntr);
-        VdbeComment((v, "LIKE loop counter"));
-        pLevel->addrLikeRep = tdsqlite3VdbeCurrentAddr(v);
-        /* iLikeRepCntr actually stores 2x the counter register number.  The
-        ** bottom bit indicates whether the search order is ASC or DESC. */
-        testcase( bRev );
-        testcase( pIdx->aSortOrder[nEq]==SQLITE_SO_DESC );
-        assert( (bRev & ~1)==0 );
-        pLevel->iLikeRepCntr <<=1;
-        pLevel->iLikeRepCntr |= bRev ^ (pIdx->aSortOrder[nEq]==SQLITE_SO_DESC);
-      }
-#endif
-      if( pRangeStart==0 ){
-        j = pIdx->aiColumn[nEq];
-        if( (j>=0 && pIdx->pTable->aCol[j].notNull==0) || j==XN_EXPR ){
-          bSeekPastNull = 1;
-        }
-      }
-    }
-    assert( pRangeEnd==0 || (pRangeEnd->wtFlags & TERM_VNULL)==0 );
-
-    /* If the WHERE_BIGNULL_SORT flag is set, then index column nEq uses
-    ** a non-default "big-null" sort (either ASC NULLS LAST or DESC NULLS 
-    ** FIRST). In both cases separate ordered scans are made of those
-    ** index entries for which the column is null and for those for which
-    ** it is not. For an ASC sort, the non-NULL entries are scanned first.
-    ** For DESC, NULL entries are scanned first.
-    */
-    if( (pLoop->wsFlags & (WHERE_TOP_LIMIT|WHERE_BTM_LIMIT))==0
-     && (pLoop->wsFlags & WHERE_BIGNULL_SORT)!=0
-    ){
-      assert( bSeekPastNull==0 && nExtraReg==0 && nBtm==0 && nTop==0 );
-      assert( pRangeEnd==0 && pRangeStart==0 );
-      testcase( pLoop->nSkip>0 );
-      nExtraReg = 1;
-      bSeekPastNull = 1;
-      pLevel->regBignull = regBignull = ++pParse->nMem;
-      pLevel->addrBignull = tdsqlite3VdbeMakeLabel(pParse);
-    }
-
-    /* If we are doing a reverse order scan on an ascending index, or
-    ** a forward order scan on a descending index, interchange the 
-    ** start and end terms (pRangeStart and pRangeEnd).
-    */
-    if( (nEq<pIdx->nKeyCol && bRev==(pIdx->aSortOrder[nEq]==SQLITE_SO_ASC))
-     || (bRev && pIdx->nKeyCol==nEq)
-    ){
-      SWAP(WhereTerm *, pRangeEnd, pRangeStart);
-      SWAP(u8, bSeekPastNull, bStopAtNull);
-      SWAP(u8, nBtm, nTop);
-    }
-
-    /* Generate code to evaluate all constraint terms using == or IN
-    ** and store the values of those terms in an array of registers
-    ** starting at regBase.
-    */
-    codeCursorHint(pTabItem, pWInfo, pLevel, pRangeEnd);
-    regBase = codeAllEqualityTerms(pParse,pLevel,bRev,nExtraReg,&zStartAff);
-    assert( zStartAff==0 || tdsqlite3Strlen30(zStartAff)>=nEq );
-    if( zStartAff && nTop ){
-      zEndAff = tdsqlite3DbStrDup(db, &zStartAff[nEq]);
-    }
-    addrNxt = (regBignull ? pLevel->addrBignull : pLevel->addrNxt);
-
-    testcase( pRangeStart && (pRangeStart->eOperator & WO_LE)!=0 );
-    testcase( pRangeStart && (pRangeStart->eOperator & WO_GE)!=0 );
-    testcase( pRangeEnd && (pRangeEnd->eOperator & WO_LE)!=0 );
-    testcase( pRangeEnd && (pRangeEnd->eOperator & WO_GE)!=0 );
-    startEq = !pRangeStart || pRangeStart->eOperator & (WO_LE|WO_GE);
-    endEq =   !pRangeEnd || pRangeEnd->eOperator & (WO_LE|WO_GE);
-    start_constraints = pRangeStart || nEq>0;
-
-    /* Seek the index cursor to the start of the range. */
-    nConstraint = nEq;
-    if( pRangeStart ){
-      Expr *pRight = pRangeStart->pExpr->pRight;
-      codeExprOrVector(pParse, pRight, regBase+nEq, nBtm);
-      whereLikeOptimizationStringFixup(v, pLevel, pRangeStart);
-      if( (pRangeStart->wtFlags & TERM_VNULL)==0
-       && tdsqlite3ExprCanBeNull(pRight)
-      ){
-        tdsqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt);
-        VdbeCoverage(v);
-      }
-      if( zStartAff ){
-        updateRangeAffinityStr(pRight, nBtm, &zStartAff[nEq]);
-      }  
-      nConstraint += nBtm;
-      testcase( pRangeStart->wtFlags & TERM_VIRTUAL );
-      if( tdsqlite3ExprIsVector(pRight)==0 ){
-        disableTerm(pLevel, pRangeStart);
-      }else{
-        startEq = 1;
-      }
-      bSeekPastNull = 0;
-    }else if( bSeekPastNull ){
-      startEq = 0;
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
-      start_constraints = 1;
-      nConstraint++;
-    }else if( regBignull ){
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
-      start_constraints = 1;
-      nConstraint++;
-    }
-    codeApplyAffinity(pParse, regBase, nConstraint - bSeekPastNull, zStartAff);
-    if( pLoop->nSkip>0 && nConstraint==pLoop->nSkip ){
-      /* The skip-scan logic inside the call to codeAllEqualityConstraints()
-      ** above has already left the cursor sitting on the correct row,
-      ** so no further seeking is needed */
-    }else{
-      if( pLoop->wsFlags & WHERE_IN_EARLYOUT ){
-        tdsqlite3VdbeAddOp1(v, OP_SeekHit, iIdxCur);
-      }
-      if( regBignull ){
-        tdsqlite3VdbeAddOp2(v, OP_Integer, 1, regBignull);
-        VdbeComment((v, "NULL-scan pass ctr"));
-      }
-
-      op = aStartOp[(start_constraints<<2) + (startEq<<1) + bRev];
-      assert( op!=0 );
-      tdsqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase, nConstraint);
-      VdbeCoverage(v);
-      VdbeCoverageIf(v, op==OP_Rewind);  testcase( op==OP_Rewind );
-      VdbeCoverageIf(v, op==OP_Last);    testcase( op==OP_Last );
-      VdbeCoverageIf(v, op==OP_SeekGT);  testcase( op==OP_SeekGT );
-      VdbeCoverageIf(v, op==OP_SeekGE);  testcase( op==OP_SeekGE );
-      VdbeCoverageIf(v, op==OP_SeekLE);  testcase( op==OP_SeekLE );
-      VdbeCoverageIf(v, op==OP_SeekLT);  testcase( op==OP_SeekLT );
-
-      assert( bSeekPastNull==0 || bStopAtNull==0 );
-      if( regBignull ){
-        assert( bSeekPastNull==1 || bStopAtNull==1 );
-        assert( bSeekPastNull==!bStopAtNull );
-        assert( bStopAtNull==startEq );
-        tdsqlite3VdbeAddOp2(v, OP_Goto, 0, tdsqlite3VdbeCurrentAddr(v)+2);
-        op = aStartOp[(nConstraint>1)*4 + 2 + bRev];
-        tdsqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase, 
-                             nConstraint-startEq);
-        VdbeCoverage(v);
-        VdbeCoverageIf(v, op==OP_Rewind);  testcase( op==OP_Rewind );
-        VdbeCoverageIf(v, op==OP_Last);    testcase( op==OP_Last );
-        VdbeCoverageIf(v, op==OP_SeekGE);  testcase( op==OP_SeekGE );
-        VdbeCoverageIf(v, op==OP_SeekLE);  testcase( op==OP_SeekLE );
-        assert( op==OP_Rewind || op==OP_Last || op==OP_SeekGE || op==OP_SeekLE);
-      }
-    }
-
-    /* Load the value for the inequality constraint at the end of the
-    ** range (if any).
-    */
-    nConstraint = nEq;
-    if( pRangeEnd ){
-      Expr *pRight = pRangeEnd->pExpr->pRight;
-      codeExprOrVector(pParse, pRight, regBase+nEq, nTop);
-      whereLikeOptimizationStringFixup(v, pLevel, pRangeEnd);
-      if( (pRangeEnd->wtFlags & TERM_VNULL)==0
-       && tdsqlite3ExprCanBeNull(pRight)
-      ){
-        tdsqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt);
-        VdbeCoverage(v);
-      }
-      if( zEndAff ){
-        updateRangeAffinityStr(pRight, nTop, zEndAff);
-        codeApplyAffinity(pParse, regBase+nEq, nTop, zEndAff);
-      }else{
-        assert( pParse->db->mallocFailed );
-      }
-      nConstraint += nTop;
-      testcase( pRangeEnd->wtFlags & TERM_VIRTUAL );
-
-      if( tdsqlite3ExprIsVector(pRight)==0 ){
-        disableTerm(pLevel, pRangeEnd);
-      }else{
-        endEq = 1;
-      }
-    }else if( bStopAtNull ){
-      if( regBignull==0 ){
-        tdsqlite3VdbeAddOp2(v, OP_Null, 0, regBase+nEq);
-        endEq = 0;
-      }
-      nConstraint++;
-    }
-    tdsqlite3DbFree(db, zStartAff);
-    tdsqlite3DbFree(db, zEndAff);
-
-    /* Top of the loop body */
-    pLevel->p2 = tdsqlite3VdbeCurrentAddr(v);
-
-    /* Check if the index cursor is past the end of the range. */
-    if( nConstraint ){
-      if( regBignull ){
-        /* Except, skip the end-of-range check while doing the NULL-scan */
-        tdsqlite3VdbeAddOp2(v, OP_IfNot, regBignull, tdsqlite3VdbeCurrentAddr(v)+3);
-        VdbeComment((v, "If NULL-scan 2nd pass"));
-        VdbeCoverage(v);
-      }
-      op = aEndOp[bRev*2 + endEq];
-      tdsqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase, nConstraint);
-      testcase( op==OP_IdxGT );  VdbeCoverageIf(v, op==OP_IdxGT );
-      testcase( op==OP_IdxGE );  VdbeCoverageIf(v, op==OP_IdxGE );
-      testcase( op==OP_IdxLT );  VdbeCoverageIf(v, op==OP_IdxLT );
-      testcase( op==OP_IdxLE );  VdbeCoverageIf(v, op==OP_IdxLE );
-    }
-    if( regBignull ){
-      /* During a NULL-scan, check to see if we have reached the end of
-      ** the NULLs */
-      assert( bSeekPastNull==!bStopAtNull );
-      assert( bSeekPastNull+bStopAtNull==1 );
-      assert( nConstraint+bSeekPastNull>0 );
-      tdsqlite3VdbeAddOp2(v, OP_If, regBignull, tdsqlite3VdbeCurrentAddr(v)+2);
-      VdbeComment((v, "If NULL-scan 1st pass"));
-      VdbeCoverage(v);
-      op = aEndOp[bRev*2 + bSeekPastNull];
-      tdsqlite3VdbeAddOp4Int(v, op, iIdxCur, addrNxt, regBase,
-                           nConstraint+bSeekPastNull);
-      testcase( op==OP_IdxGT );  VdbeCoverageIf(v, op==OP_IdxGT );
-      testcase( op==OP_IdxGE );  VdbeCoverageIf(v, op==OP_IdxGE );
-      testcase( op==OP_IdxLT );  VdbeCoverageIf(v, op==OP_IdxLT );
-      testcase( op==OP_IdxLE );  VdbeCoverageIf(v, op==OP_IdxLE );
-    }
-
-    if( pLoop->wsFlags & WHERE_IN_EARLYOUT ){
-      tdsqlite3VdbeAddOp2(v, OP_SeekHit, iIdxCur, 1);
-    }
-
-    /* Seek the table cursor, if required */
-    omitTable = (pLoop->wsFlags & WHERE_IDX_ONLY)!=0 
-           && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0;
-    if( omitTable ){
-      /* pIdx is a covering index.  No need to access the main table. */
-    }else if( HasRowid(pIdx->pTable) ){
-      if( (pWInfo->wctrlFlags & WHERE_SEEK_TABLE)
-       || ( (pWInfo->wctrlFlags & WHERE_SEEK_UNIQ_TABLE)!=0
-           && (pWInfo->eOnePass==ONEPASS_SINGLE || pLoop->nLTerm==0) )
-      ){
-        iRowidReg = ++pParse->nMem;
-        tdsqlite3VdbeAddOp2(v, OP_IdxRowid, iIdxCur, iRowidReg);
-        tdsqlite3VdbeAddOp3(v, OP_NotExists, iCur, 0, iRowidReg);
-        VdbeCoverage(v);
-      }else{
-        codeDeferredSeek(pWInfo, pIdx, iCur, iIdxCur);
-      }
-    }else if( iCur!=iIdxCur ){
-      Index *pPk = tdsqlite3PrimaryKeyIndex(pIdx->pTable);
-      iRowidReg = tdsqlite3GetTempRange(pParse, pPk->nKeyCol);
-      for(j=0; j<pPk->nKeyCol; j++){
-        k = tdsqlite3TableColumnToIndex(pIdx, pPk->aiColumn[j]);
-        tdsqlite3VdbeAddOp3(v, OP_Column, iIdxCur, k, iRowidReg+j);
-      }
-      tdsqlite3VdbeAddOp4Int(v, OP_NotFound, iCur, addrCont,
-                           iRowidReg, pPk->nKeyCol); VdbeCoverage(v);
-    }
-
-    if( pLevel->iLeftJoin==0 ){
-      /* If pIdx is an index on one or more expressions, then look through
-      ** all the expressions in pWInfo and try to transform matching expressions
-      ** into reference to index columns.  Also attempt to translate references
-      ** to virtual columns in the table into references to (stored) columns
-      ** of the index.
-      **
-      ** Do not do this for the RHS of a LEFT JOIN. This is because the 
-      ** expression may be evaluated after OP_NullRow has been executed on
-      ** the cursor. In this case it is important to do the full evaluation,
-      ** as the result of the expression may not be NULL, even if all table
-      ** column values are.  https://www.sqlite.org/src/info/7fa8049685b50b5a
-      **
-      ** Also, do not do this when processing one index an a multi-index
-      ** OR clause, since the transformation will become invalid once we
-      ** move forward to the next index.
-      ** https://sqlite.org/src/info/4e8e4857d32d401f
-      */
-      if( (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0 ){
-        whereIndexExprTrans(pIdx, iCur, iIdxCur, pWInfo);
-      }
-  
-      /* If a partial index is driving the loop, try to eliminate WHERE clause
-      ** terms from the query that must be true due to the WHERE clause of
-      ** the partial index.
-      **
-      ** 2019-11-02 ticket 623eff57e76d45f6: This optimization does not work
-      ** for a LEFT JOIN.
-      */
-      if( pIdx->pPartIdxWhere ){
-        whereApplyPartialIndexConstraints(pIdx->pPartIdxWhere, iCur, pWC);
-      }
-    }else{
-      testcase( pIdx->pPartIdxWhere );
-      /* The following assert() is not a requirement, merely an observation:
-      ** The OR-optimization doesn't work for the right hand table of
-      ** a LEFT JOIN: */
-      assert( (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0 );
-    }
-  
-    /* Record the instruction used to terminate the loop. */
-    if( pLoop->wsFlags & WHERE_ONEROW ){
-      pLevel->op = OP_Noop;
-    }else if( bRev ){
-      pLevel->op = OP_Prev;
-    }else{
-      pLevel->op = OP_Next;
-    }
-    pLevel->p1 = iIdxCur;
-    pLevel->p3 = (pLoop->wsFlags&WHERE_UNQ_WANTED)!=0 ? 1:0;
-    if( (pLoop->wsFlags & WHERE_CONSTRAINT)==0 ){
-      pLevel->p5 = SQLITE_STMTSTATUS_FULLSCAN_STEP;
-    }else{
-      assert( pLevel->p5==0 );
-    }
-    if( omitTable ) pIdx = 0;
-  }else
-
-#ifndef SQLITE_OMIT_OR_OPTIMIZATION
-  if( pLoop->wsFlags & WHERE_MULTI_OR ){
-    /* Case 5:  Two or more separately indexed terms connected by OR
-    **
-    ** Example:
-    **
-    **   CREATE TABLE t1(a,b,c,d);
-    **   CREATE INDEX i1 ON t1(a);
-    **   CREATE INDEX i2 ON t1(b);
-    **   CREATE INDEX i3 ON t1(c);
-    **
-    **   SELECT * FROM t1 WHERE a=5 OR b=7 OR (c=11 AND d=13)
-    **
-    ** In the example, there are three indexed terms connected by OR.
-    ** The top of the loop looks like this:
-    **
-    **          Null       1                # Zero the rowset in reg 1
-    **
-    ** Then, for each indexed term, the following. The arguments to
-    ** RowSetTest are such that the rowid of the current row is inserted
-    ** into the RowSet. If it is already present, control skips the
-    ** Gosub opcode and jumps straight to the code generated by WhereEnd().
-    **
-    **        tdsqlite3WhereBegin(<term>)
-    **          RowSetTest                  # Insert rowid into rowset
-    **          Gosub      2 A
-    **        tdsqlite3WhereEnd()
-    **
-    ** Following the above, code to terminate the loop. Label A, the target
-    ** of the Gosub above, jumps to the instruction right after the Goto.
-    **
-    **          Null       1                # Zero the rowset in reg 1
-    **          Goto       B                # The loop is finished.
-    **
-    **       A: <loop body>                 # Return data, whatever.
-    **
-    **          Return     2                # Jump back to the Gosub
-    **
-    **       B: <after the loop>
-    **
-    ** Added 2014-05-26: If the table is a WITHOUT ROWID table, then
-    ** use an ephemeral index instead of a RowSet to record the primary
-    ** keys of the rows we have already seen.
-    **
-    */
-    WhereClause *pOrWc;    /* The OR-clause broken out into subterms */
-    SrcList *pOrTab;       /* Shortened table list or OR-clause generation */
-    Index *pCov = 0;             /* Potential covering index (or NULL) */
-    int iCovCur = pParse->nTab++;  /* Cursor used for index scans (if any) */
-
-    int regReturn = ++pParse->nMem;           /* Register used with OP_Gosub */
-    int regRowset = 0;                        /* Register for RowSet object */
-    int regRowid = 0;                         /* Register holding rowid */
-    int iLoopBody = tdsqlite3VdbeMakeLabel(pParse);/* Start of loop body */
-    int iRetInit;                             /* Address of regReturn init */
-    int untestedTerms = 0;             /* Some terms not completely tested */
-    int ii;                            /* Loop counter */
-    u16 wctrlFlags;                    /* Flags for sub-WHERE clause */
-    Expr *pAndExpr = 0;                /* An ".. AND (...)" expression */
-    Table *pTab = pTabItem->pTab;
-
-    pTerm = pLoop->aLTerm[0];
-    assert( pTerm!=0 );
-    assert( pTerm->eOperator & WO_OR );
-    assert( (pTerm->wtFlags & TERM_ORINFO)!=0 );
-    pOrWc = &pTerm->u.pOrInfo->wc;
-    pLevel->op = OP_Return;
-    pLevel->p1 = regReturn;
-
-    /* Set up a new SrcList in pOrTab containing the table being scanned
-    ** by this loop in the a[0] slot and all notReady tables in a[1..] slots.
-    ** This becomes the SrcList in the recursive call to tdsqlite3WhereBegin().
-    */
-    if( pWInfo->nLevel>1 ){
-      int nNotReady;                 /* The number of notReady tables */
-      struct SrcList_item *origSrc;     /* Original list of tables */
-      nNotReady = pWInfo->nLevel - iLevel - 1;
-      pOrTab = tdsqlite3StackAllocRaw(db,
-                            sizeof(*pOrTab)+ nNotReady*sizeof(pOrTab->a[0]));
-      if( pOrTab==0 ) return notReady;
-      pOrTab->nAlloc = (u8)(nNotReady + 1);
-      pOrTab->nSrc = pOrTab->nAlloc;
-      memcpy(pOrTab->a, pTabItem, sizeof(*pTabItem));
-      origSrc = pWInfo->pTabList->a;
-      for(k=1; k<=nNotReady; k++){
-        memcpy(&pOrTab->a[k], &origSrc[pLevel[k].iFrom], sizeof(pOrTab->a[k]));
-      }
-    }else{
-      pOrTab = pWInfo->pTabList;
-    }
-
-    /* Initialize the rowset register to contain NULL. An SQL NULL is 
-    ** equivalent to an empty rowset.  Or, create an ephemeral index
-    ** capable of holding primary keys in the case of a WITHOUT ROWID.
-    **
-    ** Also initialize regReturn to contain the address of the instruction 
-    ** immediately following the OP_Return at the bottom of the loop. This
-    ** is required in a few obscure LEFT JOIN cases where control jumps
-    ** over the top of the loop into the body of it. In this case the 
-    ** correct response for the end-of-loop code (the OP_Return) is to 
-    ** fall through to the next instruction, just as an OP_Next does if
-    ** called on an uninitialized cursor.
-    */
-    if( (pWInfo->wctrlFlags & WHERE_DUPLICATES_OK)==0 ){
-      if( HasRowid(pTab) ){
-        regRowset = ++pParse->nMem;
-        tdsqlite3VdbeAddOp2(v, OP_Null, 0, regRowset);
-      }else{
-        Index *pPk = tdsqlite3PrimaryKeyIndex(pTab);
-        regRowset = pParse->nTab++;
-        tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, regRowset, pPk->nKeyCol);
-        tdsqlite3VdbeSetP4KeyInfo(pParse, pPk);
-      }
-      regRowid = ++pParse->nMem;
-    }
-    iRetInit = tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regReturn);
-
-    /* If the original WHERE clause is z of the form:  (x1 OR x2 OR ...) AND y
-    ** Then for every term xN, evaluate as the subexpression: xN AND z
-    ** That way, terms in y that are factored into the disjunction will
-    ** be picked up by the recursive calls to tdsqlite3WhereBegin() below.
-    **
-    ** Actually, each subexpression is converted to "xN AND w" where w is
-    ** the "interesting" terms of z - terms that did not originate in the
-    ** ON or USING clause of a LEFT JOIN, and terms that are usable as 
-    ** indices.
-    **
-    ** This optimization also only applies if the (x1 OR x2 OR ...) term
-    ** is not contained in the ON clause of a LEFT JOIN.
-    ** See ticket http://www.sqlite.org/src/info/f2369304e4
-    */
-    if( pWC->nTerm>1 ){
-      int iTerm;
-      for(iTerm=0; iTerm<pWC->nTerm; iTerm++){
-        Expr *pExpr = pWC->a[iTerm].pExpr;
-        if( &pWC->a[iTerm] == pTerm ) continue;
-        testcase( pWC->a[iTerm].wtFlags & TERM_VIRTUAL );
-        testcase( pWC->a[iTerm].wtFlags & TERM_CODED );
-        if( (pWC->a[iTerm].wtFlags & (TERM_VIRTUAL|TERM_CODED))!=0 ) continue;
-        if( (pWC->a[iTerm].eOperator & WO_ALL)==0 ) continue;
-        testcase( pWC->a[iTerm].wtFlags & TERM_ORINFO );
-        pExpr = tdsqlite3ExprDup(db, pExpr, 0);
-        pAndExpr = tdsqlite3ExprAnd(pParse, pAndExpr, pExpr);
-      }
-      if( pAndExpr ){
-        /* The extra 0x10000 bit on the opcode is masked off and does not
-        ** become part of the new Expr.op.  However, it does make the
-        ** op==TK_AND comparison inside of tdsqlite3PExpr() false, and this
-        ** prevents tdsqlite3PExpr() from implementing AND short-circuit 
-        ** optimization, which we do not want here. */
-        pAndExpr = tdsqlite3PExpr(pParse, TK_AND|0x10000, 0, pAndExpr);
-      }
-    }
-
-    /* Run a separate WHERE clause for each term of the OR clause.  After
-    ** eliminating duplicates from other WHERE clauses, the action for each
-    ** sub-WHERE clause is to to invoke the main loop body as a subroutine.
-    */
-    wctrlFlags =  WHERE_OR_SUBCLAUSE | (pWInfo->wctrlFlags & WHERE_SEEK_TABLE);
-    ExplainQueryPlan((pParse, 1, "MULTI-INDEX OR"));
-    for(ii=0; ii<pOrWc->nTerm; ii++){
-      WhereTerm *pOrTerm = &pOrWc->a[ii];
-      if( pOrTerm->leftCursor==iCur || (pOrTerm->eOperator & WO_AND)!=0 ){
-        WhereInfo *pSubWInfo;           /* Info for single OR-term scan */
-        Expr *pOrExpr = pOrTerm->pExpr; /* Current OR clause term */
-        int jmp1 = 0;                   /* Address of jump operation */
-        testcase( (pTabItem[0].fg.jointype & JT_LEFT)!=0
-               && !ExprHasProperty(pOrExpr, EP_FromJoin)
-        ); /* See TH3 vtab25.400 and ticket 614b25314c766238 */
-        if( pAndExpr ){
-          pAndExpr->pLeft = pOrExpr;
-          pOrExpr = pAndExpr;
-        }
-        /* Loop through table entries that match term pOrTerm. */
-        ExplainQueryPlan((pParse, 1, "INDEX %d", ii+1));
-        WHERETRACE(0xffff, ("Subplan for OR-clause:\n"));
-        pSubWInfo = tdsqlite3WhereBegin(pParse, pOrTab, pOrExpr, 0, 0,
-                                      wctrlFlags, iCovCur);
-        assert( pSubWInfo || pParse->nErr || db->mallocFailed );
-        if( pSubWInfo ){
-          WhereLoop *pSubLoop;
-          int addrExplain = tdsqlite3WhereExplainOneScan(
-              pParse, pOrTab, &pSubWInfo->a[0], 0
-          );
-          tdsqlite3WhereAddScanStatus(v, pOrTab, &pSubWInfo->a[0], addrExplain);
-
-          /* This is the sub-WHERE clause body.  First skip over
-          ** duplicate rows from prior sub-WHERE clauses, and record the
-          ** rowid (or PRIMARY KEY) for the current row so that the same
-          ** row will be skipped in subsequent sub-WHERE clauses.
-          */
-          if( (pWInfo->wctrlFlags & WHERE_DUPLICATES_OK)==0 ){
-            int iSet = ((ii==pOrWc->nTerm-1)?-1:ii);
-            if( HasRowid(pTab) ){
-              tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iCur, -1, regRowid);
-              jmp1 = tdsqlite3VdbeAddOp4Int(v, OP_RowSetTest, regRowset, 0,
-                                          regRowid, iSet);
-              VdbeCoverage(v);
-            }else{
-              Index *pPk = tdsqlite3PrimaryKeyIndex(pTab);
-              int nPk = pPk->nKeyCol;
-              int iPk;
-              int r;
-
-              /* Read the PK into an array of temp registers. */
-              r = tdsqlite3GetTempRange(pParse, nPk);
-              for(iPk=0; iPk<nPk; iPk++){
-                int iCol = pPk->aiColumn[iPk];
-                tdsqlite3ExprCodeGetColumnOfTable(v, pTab, iCur, iCol,r+iPk);
-              }
-
-              /* Check if the temp table already contains this key. If so,
-              ** the row has already been included in the result set and
-              ** can be ignored (by jumping past the Gosub below). Otherwise,
-              ** insert the key into the temp table and proceed with processing
-              ** the row.
-              **
-              ** Use some of the same optimizations as OP_RowSetTest: If iSet
-              ** is zero, assume that the key cannot already be present in
-              ** the temp table. And if iSet is -1, assume that there is no 
-              ** need to insert the key into the temp table, as it will never 
-              ** be tested for.  */ 
-              if( iSet ){
-                jmp1 = tdsqlite3VdbeAddOp4Int(v, OP_Found, regRowset, 0, r, nPk);
-                VdbeCoverage(v);
-              }
-              if( iSet>=0 ){
-                tdsqlite3VdbeAddOp3(v, OP_MakeRecord, r, nPk, regRowid);
-                tdsqlite3VdbeAddOp4Int(v, OP_IdxInsert, regRowset, regRowid,
-                                     r, nPk);
-                if( iSet ) tdsqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);
-              }
-
-              /* Release the array of temp registers */
-              tdsqlite3ReleaseTempRange(pParse, r, nPk);
-            }
-          }
-
-          /* Invoke the main loop body as a subroutine */
-          tdsqlite3VdbeAddOp2(v, OP_Gosub, regReturn, iLoopBody);
-
-          /* Jump here (skipping the main loop body subroutine) if the
-          ** current sub-WHERE row is a duplicate from prior sub-WHEREs. */
-          if( jmp1 ) tdsqlite3VdbeJumpHere(v, jmp1);
-
-          /* The pSubWInfo->untestedTerms flag means that this OR term
-          ** contained one or more AND term from a notReady table.  The
-          ** terms from the notReady table could not be tested and will
-          ** need to be tested later.
-          */
-          if( pSubWInfo->untestedTerms ) untestedTerms = 1;
-
-          /* If all of the OR-connected terms are optimized using the same
-          ** index, and the index is opened using the same cursor number
-          ** by each call to tdsqlite3WhereBegin() made by this loop, it may
-          ** be possible to use that index as a covering index.
-          **
-          ** If the call to tdsqlite3WhereBegin() above resulted in a scan that
-          ** uses an index, and this is either the first OR-connected term
-          ** processed or the index is the same as that used by all previous
-          ** terms, set pCov to the candidate covering index. Otherwise, set 
-          ** pCov to NULL to indicate that no candidate covering index will 
-          ** be available.
-          */
-          pSubLoop = pSubWInfo->a[0].pWLoop;
-          assert( (pSubLoop->wsFlags & WHERE_AUTO_INDEX)==0 );
-          if( (pSubLoop->wsFlags & WHERE_INDEXED)!=0
-           && (ii==0 || pSubLoop->u.btree.pIndex==pCov)
-           && (HasRowid(pTab) || !IsPrimaryKeyIndex(pSubLoop->u.btree.pIndex))
-          ){
-            assert( pSubWInfo->a[0].iIdxCur==iCovCur );
-            pCov = pSubLoop->u.btree.pIndex;
-          }else{
-            pCov = 0;
-          }
-
-          /* Finish the loop through table entries that match term pOrTerm. */
-          tdsqlite3WhereEnd(pSubWInfo);
-          ExplainQueryPlanPop(pParse);
-        }
-      }
-    }
-    ExplainQueryPlanPop(pParse);
-    pLevel->u.pCovidx = pCov;
-    if( pCov ) pLevel->iIdxCur = iCovCur;
-    if( pAndExpr ){
-      pAndExpr->pLeft = 0;
-      tdsqlite3ExprDelete(db, pAndExpr);
-    }
-    tdsqlite3VdbeChangeP1(v, iRetInit, tdsqlite3VdbeCurrentAddr(v));
-    tdsqlite3VdbeGoto(v, pLevel->addrBrk);
-    tdsqlite3VdbeResolveLabel(v, iLoopBody);
-
-    if( pWInfo->nLevel>1 ){ tdsqlite3StackFree(db, pOrTab); }
-    if( !untestedTerms ) disableTerm(pLevel, pTerm);
-  }else
-#endif /* SQLITE_OMIT_OR_OPTIMIZATION */
-
-  {
-    /* Case 6:  There is no usable index.  We must do a complete
-    **          scan of the entire table.
-    */
-    static const u8 aStep[] = { OP_Next, OP_Prev };
-    static const u8 aStart[] = { OP_Rewind, OP_Last };
-    assert( bRev==0 || bRev==1 );
-    if( pTabItem->fg.isRecursive ){
-      /* Tables marked isRecursive have only a single row that is stored in
-      ** a pseudo-cursor.  No need to Rewind or Next such cursors. */
-      pLevel->op = OP_Noop;
-    }else{
-      codeCursorHint(pTabItem, pWInfo, pLevel, 0);
-      pLevel->op = aStep[bRev];
-      pLevel->p1 = iCur;
-      pLevel->p2 = 1 + tdsqlite3VdbeAddOp2(v, aStart[bRev], iCur, addrHalt);
-      VdbeCoverageIf(v, bRev==0);
-      VdbeCoverageIf(v, bRev!=0);
-      pLevel->p5 = SQLITE_STMTSTATUS_FULLSCAN_STEP;
-    }
-  }
-
-#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
-  pLevel->addrVisit = tdsqlite3VdbeCurrentAddr(v);
-#endif
-
-  /* Insert code to test every subexpression that can be completely
-  ** computed using the current set of tables.
-  **
-  ** This loop may run between one and three times, depending on the
-  ** constraints to be generated. The value of stack variable iLoop
-  ** determines the constraints coded by each iteration, as follows:
-  **
-  ** iLoop==1: Code only expressions that are entirely covered by pIdx.
-  ** iLoop==2: Code remaining expressions that do not contain correlated
-  **           sub-queries.  
-  ** iLoop==3: Code all remaining expressions.
-  **
-  ** An effort is made to skip unnecessary iterations of the loop.
-  */
-  iLoop = (pIdx ? 1 : 2);
-  do{
-    int iNext = 0;                /* Next value for iLoop */
-    for(pTerm=pWC->a, j=pWC->nTerm; j>0; j--, pTerm++){
-      Expr *pE;
-      int skipLikeAddr = 0;
-      testcase( pTerm->wtFlags & TERM_VIRTUAL );
-      testcase( pTerm->wtFlags & TERM_CODED );
-      if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue;
-      if( (pTerm->prereqAll & pLevel->notReady)!=0 ){
-        testcase( pWInfo->untestedTerms==0
-            && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)!=0 );
-        pWInfo->untestedTerms = 1;
-        continue;
-      }
-      pE = pTerm->pExpr;
-      assert( pE!=0 );
-      if( (pTabItem->fg.jointype&JT_LEFT) && !ExprHasProperty(pE,EP_FromJoin) ){
-        continue;
-      }
-      
-      if( iLoop==1 && !tdsqlite3ExprCoveredByIndex(pE, pLevel->iTabCur, pIdx) ){
-        iNext = 2;
-        continue;
-      }
-      if( iLoop<3 && (pTerm->wtFlags & TERM_VARSELECT) ){
-        if( iNext==0 ) iNext = 3;
-        continue;
-      }
-
-      if( (pTerm->wtFlags & TERM_LIKECOND)!=0 ){
-        /* If the TERM_LIKECOND flag is set, that means that the range search
-        ** is sufficient to guarantee that the LIKE operator is true, so we
-        ** can skip the call to the like(A,B) function.  But this only works
-        ** for strings.  So do not skip the call to the function on the pass
-        ** that compares BLOBs. */
-#ifdef SQLITE_LIKE_DOESNT_MATCH_BLOBS
-        continue;
-#else
-        u32 x = pLevel->iLikeRepCntr;
-        if( x>0 ){
-          skipLikeAddr = tdsqlite3VdbeAddOp1(v, (x&1)?OP_IfNot:OP_If,(int)(x>>1));
-          VdbeCoverageIf(v, (x&1)==1);
-          VdbeCoverageIf(v, (x&1)==0);
-        }
-#endif
-      }
-#ifdef WHERETRACE_ENABLED /* 0xffff */
-      if( tdsqlite3WhereTrace ){
-        VdbeNoopComment((v, "WhereTerm[%d] (%p) priority=%d",
-                         pWC->nTerm-j, pTerm, iLoop));
-      }
-      if( tdsqlite3WhereTrace & 0x800 ){
-        tdsqlite3DebugPrintf("Coding auxiliary constraint:\n");
-        tdsqlite3WhereTermPrint(pTerm, pWC->nTerm-j);
-      }
-#endif
-      tdsqlite3ExprIfFalse(pParse, pE, addrCont, SQLITE_JUMPIFNULL);
-      if( skipLikeAddr ) tdsqlite3VdbeJumpHere(v, skipLikeAddr);
-      pTerm->wtFlags |= TERM_CODED;
-    }
-    iLoop = iNext;
-  }while( iLoop>0 );
-
-  /* Insert code to test for implied constraints based on transitivity
-  ** of the "==" operator.
-  **
-  ** Example: If the WHERE clause contains "t1.a=t2.b" and "t2.b=123"
-  ** and we are coding the t1 loop and the t2 loop has not yet coded,
-  ** then we cannot use the "t1.a=t2.b" constraint, but we can code
-  ** the implied "t1.a=123" constraint.
-  */
-  for(pTerm=pWC->a, j=pWC->nTerm; j>0; j--, pTerm++){
-    Expr *pE, sEAlt;
-    WhereTerm *pAlt;
-    if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue;
-    if( (pTerm->eOperator & (WO_EQ|WO_IS))==0 ) continue;
-    if( (pTerm->eOperator & WO_EQUIV)==0 ) continue;
-    if( pTerm->leftCursor!=iCur ) continue;
-    if( pTabItem->fg.jointype & JT_LEFT ) continue;
-    pE = pTerm->pExpr;
-#ifdef WHERETRACE_ENABLED /* 0x800 */
-    if( tdsqlite3WhereTrace & 0x800 ){
-      tdsqlite3DebugPrintf("Coding transitive constraint:\n");
-      tdsqlite3WhereTermPrint(pTerm, pWC->nTerm-j);
-    }
-#endif
-    assert( !ExprHasProperty(pE, EP_FromJoin) );
-    assert( (pTerm->prereqRight & pLevel->notReady)!=0 );
-    pAlt = tdsqlite3WhereFindTerm(pWC, iCur, pTerm->u.leftColumn, notReady,
-                    WO_EQ|WO_IN|WO_IS, 0);
-    if( pAlt==0 ) continue;
-    if( pAlt->wtFlags & (TERM_CODED) ) continue;
-    if( (pAlt->eOperator & WO_IN) 
-     && (pAlt->pExpr->flags & EP_xIsSelect)
-     && (pAlt->pExpr->x.pSelect->pEList->nExpr>1)
-    ){
-      continue;
-    }
-    testcase( pAlt->eOperator & WO_EQ );
-    testcase( pAlt->eOperator & WO_IS );
-    testcase( pAlt->eOperator & WO_IN );
-    VdbeModuleComment((v, "begin transitive constraint"));
-    sEAlt = *pAlt->pExpr;
-    sEAlt.pLeft = pE->pLeft;
-    tdsqlite3ExprIfFalse(pParse, &sEAlt, addrCont, SQLITE_JUMPIFNULL);
-  }
-
-  /* For a LEFT OUTER JOIN, generate code that will record the fact that
-  ** at least one row of the right table has matched the left table.  
-  */
-  if( pLevel->iLeftJoin ){
-    pLevel->addrFirst = tdsqlite3VdbeCurrentAddr(v);
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 1, pLevel->iLeftJoin);
-    VdbeComment((v, "record LEFT JOIN hit"));
-    for(pTerm=pWC->a, j=0; j<pWC->nTerm; j++, pTerm++){
-      testcase( pTerm->wtFlags & TERM_VIRTUAL );
-      testcase( pTerm->wtFlags & TERM_CODED );
-      if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue;
-      if( (pTerm->prereqAll & pLevel->notReady)!=0 ){
-        assert( pWInfo->untestedTerms );
-        continue;
-      }
-      assert( pTerm->pExpr );
-      tdsqlite3ExprIfFalse(pParse, pTerm->pExpr, addrCont, SQLITE_JUMPIFNULL);
-      pTerm->wtFlags |= TERM_CODED;
-    }
-  }
-
-#if WHERETRACE_ENABLED /* 0x20800 */
-  if( tdsqlite3WhereTrace & 0x20000 ){
-    tdsqlite3DebugPrintf("All WHERE-clause terms after coding level %d:\n",
-                       iLevel);
-    tdsqlite3WhereClausePrint(pWC);
-  }
-  if( tdsqlite3WhereTrace & 0x800 ){
-    tdsqlite3DebugPrintf("End Coding level %d:  notReady=%llx\n",
-       iLevel, (u64)pLevel->notReady);
-  }
-#endif
-  return pLevel->notReady;
-}
-
-/************** End of wherecode.c *******************************************/
-/************** Begin file whereexpr.c ***************************************/
-/*
-** 2015-06-08
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This module contains C code that generates VDBE code used to process
-** the WHERE clause of SQL statements.
-**
-** This file was originally part of where.c but was split out to improve
-** readability and editabiliity.  This file contains utility routines for
-** analyzing Expr objects in the WHERE clause.
-*/
-/* #include "sqliteInt.h" */
-/* #include "whereInt.h" */
-
-/* Forward declarations */
-static void exprAnalyze(SrcList*, WhereClause*, int);
-
-/*
-** Deallocate all memory associated with a WhereOrInfo object.
-*/
-static void whereOrInfoDelete(tdsqlite3 *db, WhereOrInfo *p){
-  tdsqlite3WhereClauseClear(&p->wc);
-  tdsqlite3DbFree(db, p);
-}
-
-/*
-** Deallocate all memory associated with a WhereAndInfo object.
-*/
-static void whereAndInfoDelete(tdsqlite3 *db, WhereAndInfo *p){
-  tdsqlite3WhereClauseClear(&p->wc);
-  tdsqlite3DbFree(db, p);
-}
-
-/*
-** Add a single new WhereTerm entry to the WhereClause object pWC.
-** The new WhereTerm object is constructed from Expr p and with wtFlags.
-** The index in pWC->a[] of the new WhereTerm is returned on success.
-** 0 is returned if the new WhereTerm could not be added due to a memory
-** allocation error.  The memory allocation failure will be recorded in
-** the db->mallocFailed flag so that higher-level functions can detect it.
-**
-** This routine will increase the size of the pWC->a[] array as necessary.
-**
-** If the wtFlags argument includes TERM_DYNAMIC, then responsibility
-** for freeing the expression p is assumed by the WhereClause object pWC.
-** This is true even if this routine fails to allocate a new WhereTerm.
-**
-** WARNING:  This routine might reallocate the space used to store
-** WhereTerms.  All pointers to WhereTerms should be invalidated after
-** calling this routine.  Such pointers may be reinitialized by referencing
-** the pWC->a[] array.
-*/
-static int whereClauseInsert(WhereClause *pWC, Expr *p, u16 wtFlags){
-  WhereTerm *pTerm;
-  int idx;
-  testcase( wtFlags & TERM_VIRTUAL );
-  if( pWC->nTerm>=pWC->nSlot ){
-    WhereTerm *pOld = pWC->a;
-    tdsqlite3 *db = pWC->pWInfo->pParse->db;
-    pWC->a = tdsqlite3DbMallocRawNN(db, sizeof(pWC->a[0])*pWC->nSlot*2 );
-    if( pWC->a==0 ){
-      if( wtFlags & TERM_DYNAMIC ){
-        tdsqlite3ExprDelete(db, p);
-      }
-      pWC->a = pOld;
-      return 0;
-    }
-    memcpy(pWC->a, pOld, sizeof(pWC->a[0])*pWC->nTerm);
-    if( pOld!=pWC->aStatic ){
-      tdsqlite3DbFree(db, pOld);
-    }
-    pWC->nSlot = tdsqlite3DbMallocSize(db, pWC->a)/sizeof(pWC->a[0]);
-  }
-  pTerm = &pWC->a[idx = pWC->nTerm++];
-  if( p && ExprHasProperty(p, EP_Unlikely) ){
-    pTerm->truthProb = tdsqlite3LogEst(p->iTable) - 270;
-  }else{
-    pTerm->truthProb = 1;
-  }
-  pTerm->pExpr = tdsqlite3ExprSkipCollateAndLikely(p);
-  pTerm->wtFlags = wtFlags;
-  pTerm->pWC = pWC;
-  pTerm->iParent = -1;
-  memset(&pTerm->eOperator, 0,
-         sizeof(WhereTerm) - offsetof(WhereTerm,eOperator));
-  return idx;
-}
-
-/*
-** Return TRUE if the given operator is one of the operators that is
-** allowed for an indexable WHERE clause term.  The allowed operators are
-** "=", "<", ">", "<=", ">=", "IN", "IS", and "IS NULL"
-*/
-static int allowedOp(int op){
-  assert( TK_GT>TK_EQ && TK_GT<TK_GE );
-  assert( TK_LT>TK_EQ && TK_LT<TK_GE );
-  assert( TK_LE>TK_EQ && TK_LE<TK_GE );
-  assert( TK_GE==TK_EQ+4 );
-  return op==TK_IN || (op>=TK_EQ && op<=TK_GE) || op==TK_ISNULL || op==TK_IS;
-}
-
-/*
-** Commute a comparison operator.  Expressions of the form "X op Y"
-** are converted into "Y op X".
-*/
-static u16 exprCommute(Parse *pParse, Expr *pExpr){
-  if( pExpr->pLeft->op==TK_VECTOR
-   || pExpr->pRight->op==TK_VECTOR
-   || tdsqlite3BinaryCompareCollSeq(pParse, pExpr->pLeft, pExpr->pRight) !=
-      tdsqlite3BinaryCompareCollSeq(pParse, pExpr->pRight, pExpr->pLeft)
-  ){
-    pExpr->flags ^= EP_Commuted;
-  }
-  SWAP(Expr*,pExpr->pRight,pExpr->pLeft);
-  if( pExpr->op>=TK_GT ){
-    assert( TK_LT==TK_GT+2 );
-    assert( TK_GE==TK_LE+2 );
-    assert( TK_GT>TK_EQ );
-    assert( TK_GT<TK_LE );
-    assert( pExpr->op>=TK_GT && pExpr->op<=TK_GE );
-    pExpr->op = ((pExpr->op-TK_GT)^2)+TK_GT;
-  }
-  return 0;
-}
-
-/*
-** Translate from TK_xx operator to WO_xx bitmask.
-*/
-static u16 operatorMask(int op){
-  u16 c;
-  assert( allowedOp(op) );
-  if( op==TK_IN ){
-    c = WO_IN;
-  }else if( op==TK_ISNULL ){
-    c = WO_ISNULL;
-  }else if( op==TK_IS ){
-    c = WO_IS;
-  }else{
-    assert( (WO_EQ<<(op-TK_EQ)) < 0x7fff );
-    c = (u16)(WO_EQ<<(op-TK_EQ));
-  }
-  assert( op!=TK_ISNULL || c==WO_ISNULL );
-  assert( op!=TK_IN || c==WO_IN );
-  assert( op!=TK_EQ || c==WO_EQ );
-  assert( op!=TK_LT || c==WO_LT );
-  assert( op!=TK_LE || c==WO_LE );
-  assert( op!=TK_GT || c==WO_GT );
-  assert( op!=TK_GE || c==WO_GE );
-  assert( op!=TK_IS || c==WO_IS );
-  return c;
-}
-
-
-#ifndef SQLITE_OMIT_LIKE_OPTIMIZATION
-/*
-** Check to see if the given expression is a LIKE or GLOB operator that
-** can be optimized using inequality constraints.  Return TRUE if it is
-** so and false if not.
-**
-** In order for the operator to be optimizible, the RHS must be a string
-** literal that does not begin with a wildcard.  The LHS must be a column
-** that may only be NULL, a string, or a BLOB, never a number. (This means
-** that virtual tables cannot participate in the LIKE optimization.)  The
-** collating sequence for the column on the LHS must be appropriate for
-** the operator.
-*/
-static int isLikeOrGlob(
-  Parse *pParse,    /* Parsing and code generating context */
-  Expr *pExpr,      /* Test this expression */
-  Expr **ppPrefix,  /* Pointer to TK_STRING expression with pattern prefix */
-  int *pisComplete, /* True if the only wildcard is % in the last character */
-  int *pnoCase      /* True if uppercase is equivalent to lowercase */
-){
-  const u8 *z = 0;           /* String on RHS of LIKE operator */
-  Expr *pRight, *pLeft;      /* Right and left size of LIKE operator */
-  ExprList *pList;           /* List of operands to the LIKE operator */
-  u8 c;                      /* One character in z[] */
-  int cnt;                   /* Number of non-wildcard prefix characters */
-  u8 wc[4];                  /* Wildcard characters */
-  tdsqlite3 *db = pParse->db;  /* Database connection */
-  tdsqlite3_value *pVal = 0;
-  int op;                    /* Opcode of pRight */
-  int rc;                    /* Result code to return */
-
-  if( !tdsqlite3IsLikeFunction(db, pExpr, pnoCase, (char*)wc) ){
-    return 0;
-  }
-#ifdef SQLITE_EBCDIC
-  if( *pnoCase ) return 0;
-#endif
-  pList = pExpr->x.pList;
-  pLeft = pList->a[1].pExpr;
-
-  pRight = tdsqlite3ExprSkipCollate(pList->a[0].pExpr);
-  op = pRight->op;
-  if( op==TK_VARIABLE && (db->flags & SQLITE_EnableQPSG)==0 ){
-    Vdbe *pReprepare = pParse->pReprepare;
-    int iCol = pRight->iColumn;
-    pVal = tdsqlite3VdbeGetBoundValue(pReprepare, iCol, SQLITE_AFF_BLOB);
-    if( pVal && tdsqlite3_value_type(pVal)==SQLITE_TEXT ){
-      z = tdsqlite3_value_text(pVal);
-    }
-    tdsqlite3VdbeSetVarmask(pParse->pVdbe, iCol);
-    assert( pRight->op==TK_VARIABLE || pRight->op==TK_REGISTER );
-  }else if( op==TK_STRING ){
-    z = (u8*)pRight->u.zToken;
-  }
-  if( z ){
-
-    /* Count the number of prefix characters prior to the first wildcard */
-    cnt = 0;
-    while( (c=z[cnt])!=0 && c!=wc[0] && c!=wc[1] && c!=wc[2] ){
-      cnt++;
-      if( c==wc[3] && z[cnt]!=0 ) cnt++;
-    }
-
-    /* The optimization is possible only if (1) the pattern does not begin
-    ** with a wildcard and if (2) the non-wildcard prefix does not end with
-    ** an (illegal 0xff) character, or (3) the pattern does not consist of
-    ** a single escape character. The second condition is necessary so
-    ** that we can increment the prefix key to find an upper bound for the
-    ** range search. The third is because the caller assumes that the pattern
-    ** consists of at least one character after all escapes have been
-    ** removed.  */
-    if( cnt!=0 && 255!=(u8)z[cnt-1] && (cnt>1 || z[0]!=wc[3]) ){
-      Expr *pPrefix;
-
-      /* A "complete" match if the pattern ends with "*" or "%" */
-      *pisComplete = c==wc[0] && z[cnt+1]==0;
-
-      /* Get the pattern prefix.  Remove all escapes from the prefix. */
-      pPrefix = tdsqlite3Expr(db, TK_STRING, (char*)z);
-      if( pPrefix ){
-        int iFrom, iTo;
-        char *zNew = pPrefix->u.zToken;
-        zNew[cnt] = 0;
-        for(iFrom=iTo=0; iFrom<cnt; iFrom++){
-          if( zNew[iFrom]==wc[3] ) iFrom++;
-          zNew[iTo++] = zNew[iFrom];
-        }
-        zNew[iTo] = 0;
-        assert( iTo>0 );
-
-        /* If the LHS is not an ordinary column with TEXT affinity, then the
-        ** pattern prefix boundaries (both the start and end boundaries) must
-        ** not look like a number.  Otherwise the pattern might be treated as
-        ** a number, which will invalidate the LIKE optimization.
-        **
-        ** Getting this right has been a persistent source of bugs in the
-        ** LIKE optimization.  See, for example:
-        **    2018-09-10 https://sqlite.org/src/info/c94369cae9b561b1
-        **    2019-05-02 https://sqlite.org/src/info/b043a54c3de54b28
-        **    2019-06-10 https://sqlite.org/src/info/fd76310a5e843e07
-        **    2019-06-14 https://sqlite.org/src/info/ce8717f0885af975
-        **    2019-09-03 https://sqlite.org/src/info/0f0428096f17252a
-        */
-        if( pLeft->op!=TK_COLUMN 
-         || tdsqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT 
-         || IsVirtual(pLeft->y.pTab)  /* Value might be numeric */
-        ){
-          int isNum;
-          double rDummy;
-          isNum = tdsqlite3AtoF(zNew, &rDummy, iTo, SQLITE_UTF8);
-          if( isNum<=0 ){
-            if( iTo==1 && zNew[0]=='-' ){
-              isNum = +1;
-            }else{
-              zNew[iTo-1]++;
-              isNum = tdsqlite3AtoF(zNew, &rDummy, iTo, SQLITE_UTF8);
-              zNew[iTo-1]--;
-            }
-          }
-          if( isNum>0 ){
-            tdsqlite3ExprDelete(db, pPrefix);
-            tdsqlite3ValueFree(pVal);
-            return 0;
-          }
-        }
-      }
-      *ppPrefix = pPrefix;
-
-      /* If the RHS pattern is a bound parameter, make arrangements to
-      ** reprepare the statement when that parameter is rebound */
-      if( op==TK_VARIABLE ){
-        Vdbe *v = pParse->pVdbe;
-        tdsqlite3VdbeSetVarmask(v, pRight->iColumn);
-        if( *pisComplete && pRight->u.zToken[1] ){
-          /* If the rhs of the LIKE expression is a variable, and the current
-          ** value of the variable means there is no need to invoke the LIKE
-          ** function, then no OP_Variable will be added to the program.
-          ** This causes problems for the tdsqlite3_bind_parameter_name()
-          ** API. To work around them, add a dummy OP_Variable here.
-          */ 
-          int r1 = tdsqlite3GetTempReg(pParse);
-          tdsqlite3ExprCodeTarget(pParse, pRight, r1);
-          tdsqlite3VdbeChangeP3(v, tdsqlite3VdbeCurrentAddr(v)-1, 0);
-          tdsqlite3ReleaseTempReg(pParse, r1);
-        }
-      }
-    }else{
-      z = 0;
-    }
-  }
-
-  rc = (z!=0);
-  tdsqlite3ValueFree(pVal);
-  return rc;
-}
-#endif /* SQLITE_OMIT_LIKE_OPTIMIZATION */
-
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/*
-** Check to see if the pExpr expression is a form that needs to be passed
-** to the xBestIndex method of virtual tables.  Forms of interest include:
-**
-**          Expression                   Virtual Table Operator
-**          -----------------------      ---------------------------------
-**      1.  column MATCH expr            SQLITE_INDEX_CONSTRAINT_MATCH
-**      2.  column GLOB expr             SQLITE_INDEX_CONSTRAINT_GLOB
-**      3.  column LIKE expr             SQLITE_INDEX_CONSTRAINT_LIKE
-**      4.  column REGEXP expr           SQLITE_INDEX_CONSTRAINT_REGEXP
-**      5.  column != expr               SQLITE_INDEX_CONSTRAINT_NE
-**      6.  expr != column               SQLITE_INDEX_CONSTRAINT_NE
-**      7.  column IS NOT expr           SQLITE_INDEX_CONSTRAINT_ISNOT
-**      8.  expr IS NOT column           SQLITE_INDEX_CONSTRAINT_ISNOT
-**      9.  column IS NOT NULL           SQLITE_INDEX_CONSTRAINT_ISNOTNULL
-**
-** In every case, "column" must be a column of a virtual table.  If there
-** is a match, set *ppLeft to the "column" expression, set *ppRight to the 
-** "expr" expression (even though in forms (6) and (8) the column is on the
-** right and the expression is on the left).  Also set *peOp2 to the
-** appropriate virtual table operator.  The return value is 1 or 2 if there
-** is a match.  The usual return is 1, but if the RHS is also a column
-** of virtual table in forms (5) or (7) then return 2.
-**
-** If the expression matches none of the patterns above, return 0.
-*/
-static int isAuxiliaryVtabOperator(
-  tdsqlite3 *db,                    /* Parsing context */
-  Expr *pExpr,                    /* Test this expression */
-  unsigned char *peOp2,           /* OUT: 0 for MATCH, or else an op2 value */
-  Expr **ppLeft,                  /* Column expression to left of MATCH/op2 */
-  Expr **ppRight                  /* Expression to left of MATCH/op2 */
-){
-  if( pExpr->op==TK_FUNCTION ){
-    static const struct Op2 {
-      const char *zOp;
-      unsigned char eOp2;
-    } aOp[] = {
-      { "match",  SQLITE_INDEX_CONSTRAINT_MATCH },
-      { "glob",   SQLITE_INDEX_CONSTRAINT_GLOB },
-      { "like",   SQLITE_INDEX_CONSTRAINT_LIKE },
-      { "regexp", SQLITE_INDEX_CONSTRAINT_REGEXP }
-    };
-    ExprList *pList;
-    Expr *pCol;                     /* Column reference */
-    int i;
-
-    pList = pExpr->x.pList;
-    if( pList==0 || pList->nExpr!=2 ){
-      return 0;
-    }
-
-    /* Built-in operators MATCH, GLOB, LIKE, and REGEXP attach to a
-    ** virtual table on their second argument, which is the same as
-    ** the left-hand side operand in their in-fix form.
-    **
-    **       vtab_column MATCH expression
-    **       MATCH(expression,vtab_column)
-    */
-    pCol = pList->a[1].pExpr;
-    if( pCol->op==TK_COLUMN && IsVirtual(pCol->y.pTab) ){
-      for(i=0; i<ArraySize(aOp); i++){
-        if( tdsqlite3StrICmp(pExpr->u.zToken, aOp[i].zOp)==0 ){
-          *peOp2 = aOp[i].eOp2;
-          *ppRight = pList->a[0].pExpr;
-          *ppLeft = pCol;
-          return 1;
-        }
-      }
-    }
-
-    /* We can also match against the first column of overloaded
-    ** functions where xFindFunction returns a value of at least
-    ** SQLITE_INDEX_CONSTRAINT_FUNCTION.
-    **
-    **      OVERLOADED(vtab_column,expression)
-    **
-    ** Historically, xFindFunction expected to see lower-case function
-    ** names.  But for this use case, xFindFunction is expected to deal
-    ** with function names in an arbitrary case.
-    */
-    pCol = pList->a[0].pExpr;
-    if( pCol->op==TK_COLUMN && IsVirtual(pCol->y.pTab) ){
-      tdsqlite3_vtab *pVtab;
-      tdsqlite3_module *pMod;
-      void (*xNotUsed)(tdsqlite3_context*,int,tdsqlite3_value**);
-      void *pNotUsed;
-      pVtab = tdsqlite3GetVTable(db, pCol->y.pTab)->pVtab;
-      assert( pVtab!=0 );
-      assert( pVtab->pModule!=0 );
-      pMod = (tdsqlite3_module *)pVtab->pModule;
-      if( pMod->xFindFunction!=0 ){
-        i = pMod->xFindFunction(pVtab,2, pExpr->u.zToken, &xNotUsed, &pNotUsed);
-        if( i>=SQLITE_INDEX_CONSTRAINT_FUNCTION ){
-          *peOp2 = i;
-          *ppRight = pList->a[1].pExpr;
-          *ppLeft = pCol;
-          return 1;
-        }
-      }
-    }
-  }else if( pExpr->op==TK_NE || pExpr->op==TK_ISNOT || pExpr->op==TK_NOTNULL ){
-    int res = 0;
-    Expr *pLeft = pExpr->pLeft;
-    Expr *pRight = pExpr->pRight;
-    if( pLeft->op==TK_COLUMN && IsVirtual(pLeft->y.pTab) ){
-      res++;
-    }
-    if( pRight && pRight->op==TK_COLUMN && IsVirtual(pRight->y.pTab) ){
-      res++;
-      SWAP(Expr*, pLeft, pRight);
-    }
-    *ppLeft = pLeft;
-    *ppRight = pRight;
-    if( pExpr->op==TK_NE ) *peOp2 = SQLITE_INDEX_CONSTRAINT_NE;
-    if( pExpr->op==TK_ISNOT ) *peOp2 = SQLITE_INDEX_CONSTRAINT_ISNOT;
-    if( pExpr->op==TK_NOTNULL ) *peOp2 = SQLITE_INDEX_CONSTRAINT_ISNOTNULL;
-    return res;
-  }
-  return 0;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-/*
-** If the pBase expression originated in the ON or USING clause of
-** a join, then transfer the appropriate markings over to derived.
-*/
-static void transferJoinMarkings(Expr *pDerived, Expr *pBase){
-  if( pDerived ){
-    pDerived->flags |= pBase->flags & EP_FromJoin;
-    pDerived->iRightJoinTable = pBase->iRightJoinTable;
-  }
-}
-
-/*
-** Mark term iChild as being a child of term iParent
-*/
-static void markTermAsChild(WhereClause *pWC, int iChild, int iParent){
-  pWC->a[iChild].iParent = iParent;
-  pWC->a[iChild].truthProb = pWC->a[iParent].truthProb;
-  pWC->a[iParent].nChild++;
-}
-
-/*
-** Return the N-th AND-connected subterm of pTerm.  Or if pTerm is not
-** a conjunction, then return just pTerm when N==0.  If N is exceeds
-** the number of available subterms, return NULL.
-*/
-static WhereTerm *whereNthSubterm(WhereTerm *pTerm, int N){
-  if( pTerm->eOperator!=WO_AND ){
-    return N==0 ? pTerm : 0;
-  }
-  if( N<pTerm->u.pAndInfo->wc.nTerm ){
-    return &pTerm->u.pAndInfo->wc.a[N];
-  }
-  return 0;
-}
-
-/*
-** Subterms pOne and pTwo are contained within WHERE clause pWC.  The
-** two subterms are in disjunction - they are OR-ed together.
-**
-** If these two terms are both of the form:  "A op B" with the same
-** A and B values but different operators and if the operators are
-** compatible (if one is = and the other is <, for example) then
-** add a new virtual AND term to pWC that is the combination of the
-** two.
-**
-** Some examples:
-**
-**    x<y OR x=y    -->     x<=y
-**    x=y OR x=y    -->     x=y
-**    x<=y OR x<y   -->     x<=y
-**
-** The following is NOT generated:
-**
-**    x<y OR x>y    -->     x!=y     
-*/
-static void whereCombineDisjuncts(
-  SrcList *pSrc,         /* the FROM clause */
-  WhereClause *pWC,      /* The complete WHERE clause */
-  WhereTerm *pOne,       /* First disjunct */
-  WhereTerm *pTwo        /* Second disjunct */
-){
-  u16 eOp = pOne->eOperator | pTwo->eOperator;
-  tdsqlite3 *db;           /* Database connection (for malloc) */
-  Expr *pNew;            /* New virtual expression */
-  int op;                /* Operator for the combined expression */
-  int idxNew;            /* Index in pWC of the next virtual term */
-
-  if( (pOne->eOperator & (WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE))==0 ) return;
-  if( (pTwo->eOperator & (WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE))==0 ) return;
-  if( (eOp & (WO_EQ|WO_LT|WO_LE))!=eOp
-   && (eOp & (WO_EQ|WO_GT|WO_GE))!=eOp ) return;
-  assert( pOne->pExpr->pLeft!=0 && pOne->pExpr->pRight!=0 );
-  assert( pTwo->pExpr->pLeft!=0 && pTwo->pExpr->pRight!=0 );
-  if( tdsqlite3ExprCompare(0,pOne->pExpr->pLeft, pTwo->pExpr->pLeft, -1) ) return;
-  if( tdsqlite3ExprCompare(0,pOne->pExpr->pRight, pTwo->pExpr->pRight,-1) )return;
-  /* If we reach this point, it means the two subterms can be combined */
-  if( (eOp & (eOp-1))!=0 ){
-    if( eOp & (WO_LT|WO_LE) ){
-      eOp = WO_LE;
-    }else{
-      assert( eOp & (WO_GT|WO_GE) );
-      eOp = WO_GE;
-    }
-  }
-  db = pWC->pWInfo->pParse->db;
-  pNew = tdsqlite3ExprDup(db, pOne->pExpr, 0);
-  if( pNew==0 ) return;
-  for(op=TK_EQ; eOp!=(WO_EQ<<(op-TK_EQ)); op++){ assert( op<TK_GE ); }
-  pNew->op = op;
-  idxNew = whereClauseInsert(pWC, pNew, TERM_VIRTUAL|TERM_DYNAMIC);
-  exprAnalyze(pSrc, pWC, idxNew);
-}
-
-#if !defined(SQLITE_OMIT_OR_OPTIMIZATION) && !defined(SQLITE_OMIT_SUBQUERY)
-/*
-** Analyze a term that consists of two or more OR-connected
-** subterms.  So in:
-**
-**     ... WHERE  (a=5) AND (b=7 OR c=9 OR d=13) AND (d=13)
-**                          ^^^^^^^^^^^^^^^^^^^^
-**
-** This routine analyzes terms such as the middle term in the above example.
-** A WhereOrTerm object is computed and attached to the term under
-** analysis, regardless of the outcome of the analysis.  Hence:
-**
-**     WhereTerm.wtFlags   |=  TERM_ORINFO
-**     WhereTerm.u.pOrInfo  =  a dynamically allocated WhereOrTerm object
-**
-** The term being analyzed must have two or more of OR-connected subterms.
-** A single subterm might be a set of AND-connected sub-subterms.
-** Examples of terms under analysis:
-**
-**     (A)     t1.x=t2.y OR t1.x=t2.z OR t1.y=15 OR t1.z=t3.a+5
-**     (B)     x=expr1 OR expr2=x OR x=expr3
-**     (C)     t1.x=t2.y OR (t1.x=t2.z AND t1.y=15)
-**     (D)     x=expr1 OR (y>11 AND y<22 AND z LIKE '*hello*')
-**     (E)     (p.a=1 AND q.b=2 AND r.c=3) OR (p.x=4 AND q.y=5 AND r.z=6)
-**     (F)     x>A OR (x=A AND y>=B)
-**
-** CASE 1:
-**
-** If all subterms are of the form T.C=expr for some single column of C and
-** a single table T (as shown in example B above) then create a new virtual
-** term that is an equivalent IN expression.  In other words, if the term
-** being analyzed is:
-**
-**      x = expr1  OR  expr2 = x  OR  x = expr3
-**
-** then create a new virtual term like this:
-**
-**      x IN (expr1,expr2,expr3)
-**
-** CASE 2:
-**
-** If there are exactly two disjuncts and one side has x>A and the other side
-** has x=A (for the same x and A) then add a new virtual conjunct term to the
-** WHERE clause of the form "x>=A".  Example:
-**
-**      x>A OR (x=A AND y>B)    adds:    x>=A
-**
-** The added conjunct can sometimes be helpful in query planning.
-**
-** CASE 3:
-**
-** If all subterms are indexable by a single table T, then set
-**
-**     WhereTerm.eOperator              =  WO_OR
-**     WhereTerm.u.pOrInfo->indexable  |=  the cursor number for table T
-**
-** A subterm is "indexable" if it is of the form
-** "T.C <op> <expr>" where C is any column of table T and 
-** <op> is one of "=", "<", "<=", ">", ">=", "IS NULL", or "IN".
-** A subterm is also indexable if it is an AND of two or more
-** subsubterms at least one of which is indexable.  Indexable AND 
-** subterms have their eOperator set to WO_AND and they have
-** u.pAndInfo set to a dynamically allocated WhereAndTerm object.
-**
-** From another point of view, "indexable" means that the subterm could
-** potentially be used with an index if an appropriate index exists.
-** This analysis does not consider whether or not the index exists; that
-** is decided elsewhere.  This analysis only looks at whether subterms
-** appropriate for indexing exist.
-**
-** All examples A through E above satisfy case 3.  But if a term
-** also satisfies case 1 (such as B) we know that the optimizer will
-** always prefer case 1, so in that case we pretend that case 3 is not
-** satisfied.
-**
-** It might be the case that multiple tables are indexable.  For example,
-** (E) above is indexable on tables P, Q, and R.
-**
-** Terms that satisfy case 3 are candidates for lookup by using
-** separate indices to find rowids for each subterm and composing
-** the union of all rowids using a RowSet object.  This is similar
-** to "bitmap indices" in other database engines.
-**
-** OTHERWISE:
-**
-** If none of cases 1, 2, or 3 apply, then leave the eOperator set to
-** zero.  This term is not useful for search.
-*/
-static void exprAnalyzeOrTerm(
-  SrcList *pSrc,            /* the FROM clause */
-  WhereClause *pWC,         /* the complete WHERE clause */
-  int idxTerm               /* Index of the OR-term to be analyzed */
-){
-  WhereInfo *pWInfo = pWC->pWInfo;        /* WHERE clause processing context */
-  Parse *pParse = pWInfo->pParse;         /* Parser context */
-  tdsqlite3 *db = pParse->db;               /* Database connection */
-  WhereTerm *pTerm = &pWC->a[idxTerm];    /* The term to be analyzed */
-  Expr *pExpr = pTerm->pExpr;             /* The expression of the term */
-  int i;                                  /* Loop counters */
-  WhereClause *pOrWc;       /* Breakup of pTerm into subterms */
-  WhereTerm *pOrTerm;       /* A Sub-term within the pOrWc */
-  WhereOrInfo *pOrInfo;     /* Additional information associated with pTerm */
-  Bitmask chngToIN;         /* Tables that might satisfy case 1 */
-  Bitmask indexable;        /* Tables that are indexable, satisfying case 2 */
-
-  /*
-  ** Break the OR clause into its separate subterms.  The subterms are
-  ** stored in a WhereClause structure containing within the WhereOrInfo
-  ** object that is attached to the original OR clause term.
-  */
-  assert( (pTerm->wtFlags & (TERM_DYNAMIC|TERM_ORINFO|TERM_ANDINFO))==0 );
-  assert( pExpr->op==TK_OR );
-  pTerm->u.pOrInfo = pOrInfo = tdsqlite3DbMallocZero(db, sizeof(*pOrInfo));
-  if( pOrInfo==0 ) return;
-  pTerm->wtFlags |= TERM_ORINFO;
-  pOrWc = &pOrInfo->wc;
-  memset(pOrWc->aStatic, 0, sizeof(pOrWc->aStatic));
-  tdsqlite3WhereClauseInit(pOrWc, pWInfo);
-  tdsqlite3WhereSplit(pOrWc, pExpr, TK_OR);
-  tdsqlite3WhereExprAnalyze(pSrc, pOrWc);
-  if( db->mallocFailed ) return;
-  assert( pOrWc->nTerm>=2 );
-
-  /*
-  ** Compute the set of tables that might satisfy cases 1 or 3.
-  */
-  indexable = ~(Bitmask)0;
-  chngToIN = ~(Bitmask)0;
-  for(i=pOrWc->nTerm-1, pOrTerm=pOrWc->a; i>=0 && indexable; i--, pOrTerm++){
-    if( (pOrTerm->eOperator & WO_SINGLE)==0 ){
-      WhereAndInfo *pAndInfo;
-      assert( (pOrTerm->wtFlags & (TERM_ANDINFO|TERM_ORINFO))==0 );
-      chngToIN = 0;
-      pAndInfo = tdsqlite3DbMallocRawNN(db, sizeof(*pAndInfo));
-      if( pAndInfo ){
-        WhereClause *pAndWC;
-        WhereTerm *pAndTerm;
-        int j;
-        Bitmask b = 0;
-        pOrTerm->u.pAndInfo = pAndInfo;
-        pOrTerm->wtFlags |= TERM_ANDINFO;
-        pOrTerm->eOperator = WO_AND;
-        pAndWC = &pAndInfo->wc;
-        memset(pAndWC->aStatic, 0, sizeof(pAndWC->aStatic));
-        tdsqlite3WhereClauseInit(pAndWC, pWC->pWInfo);
-        tdsqlite3WhereSplit(pAndWC, pOrTerm->pExpr, TK_AND);
-        tdsqlite3WhereExprAnalyze(pSrc, pAndWC);
-        pAndWC->pOuter = pWC;
-        if( !db->mallocFailed ){
-          for(j=0, pAndTerm=pAndWC->a; j<pAndWC->nTerm; j++, pAndTerm++){
-            assert( pAndTerm->pExpr );
-            if( allowedOp(pAndTerm->pExpr->op) 
-             || pAndTerm->eOperator==WO_AUX
-            ){
-              b |= tdsqlite3WhereGetMask(&pWInfo->sMaskSet, pAndTerm->leftCursor);
-            }
-          }
-        }
-        indexable &= b;
-      }
-    }else if( pOrTerm->wtFlags & TERM_COPIED ){
-      /* Skip this term for now.  We revisit it when we process the
-      ** corresponding TERM_VIRTUAL term */
-    }else{
-      Bitmask b;
-      b = tdsqlite3WhereGetMask(&pWInfo->sMaskSet, pOrTerm->leftCursor);
-      if( pOrTerm->wtFlags & TERM_VIRTUAL ){
-        WhereTerm *pOther = &pOrWc->a[pOrTerm->iParent];
-        b |= tdsqlite3WhereGetMask(&pWInfo->sMaskSet, pOther->leftCursor);
-      }
-      indexable &= b;
-      if( (pOrTerm->eOperator & WO_EQ)==0 ){
-        chngToIN = 0;
-      }else{
-        chngToIN &= b;
-      }
-    }
-  }
-
-  /*
-  ** Record the set of tables that satisfy case 3.  The set might be
-  ** empty.
-  */
-  pOrInfo->indexable = indexable;
-  if( indexable ){
-    pTerm->eOperator = WO_OR;
-    pWC->hasOr = 1;
-  }else{
-    pTerm->eOperator = WO_OR;
-  }
-
-  /* For a two-way OR, attempt to implementation case 2.
-  */
-  if( indexable && pOrWc->nTerm==2 ){
-    int iOne = 0;
-    WhereTerm *pOne;
-    while( (pOne = whereNthSubterm(&pOrWc->a[0],iOne++))!=0 ){
-      int iTwo = 0;
-      WhereTerm *pTwo;
-      while( (pTwo = whereNthSubterm(&pOrWc->a[1],iTwo++))!=0 ){
-        whereCombineDisjuncts(pSrc, pWC, pOne, pTwo);
-      }
-    }
-  }
-
-  /*
-  ** chngToIN holds a set of tables that *might* satisfy case 1.  But
-  ** we have to do some additional checking to see if case 1 really
-  ** is satisfied.
-  **
-  ** chngToIN will hold either 0, 1, or 2 bits.  The 0-bit case means
-  ** that there is no possibility of transforming the OR clause into an
-  ** IN operator because one or more terms in the OR clause contain
-  ** something other than == on a column in the single table.  The 1-bit
-  ** case means that every term of the OR clause is of the form
-  ** "table.column=expr" for some single table.  The one bit that is set
-  ** will correspond to the common table.  We still need to check to make
-  ** sure the same column is used on all terms.  The 2-bit case is when
-  ** the all terms are of the form "table1.column=table2.column".  It
-  ** might be possible to form an IN operator with either table1.column
-  ** or table2.column as the LHS if either is common to every term of
-  ** the OR clause.
-  **
-  ** Note that terms of the form "table.column1=table.column2" (the
-  ** same table on both sizes of the ==) cannot be optimized.
-  */
-  if( chngToIN ){
-    int okToChngToIN = 0;     /* True if the conversion to IN is valid */
-    int iColumn = -1;         /* Column index on lhs of IN operator */
-    int iCursor = -1;         /* Table cursor common to all terms */
-    int j = 0;                /* Loop counter */
-
-    /* Search for a table and column that appears on one side or the
-    ** other of the == operator in every subterm.  That table and column
-    ** will be recorded in iCursor and iColumn.  There might not be any
-    ** such table and column.  Set okToChngToIN if an appropriate table
-    ** and column is found but leave okToChngToIN false if not found.
-    */
-    for(j=0; j<2 && !okToChngToIN; j++){
-      Expr *pLeft = 0;
-      pOrTerm = pOrWc->a;
-      for(i=pOrWc->nTerm-1; i>=0; i--, pOrTerm++){
-        assert( pOrTerm->eOperator & WO_EQ );
-        pOrTerm->wtFlags &= ~TERM_OR_OK;
-        if( pOrTerm->leftCursor==iCursor ){
-          /* This is the 2-bit case and we are on the second iteration and
-          ** current term is from the first iteration.  So skip this term. */
-          assert( j==1 );
-          continue;
-        }
-        if( (chngToIN & tdsqlite3WhereGetMask(&pWInfo->sMaskSet,
-                                            pOrTerm->leftCursor))==0 ){
-          /* This term must be of the form t1.a==t2.b where t2 is in the
-          ** chngToIN set but t1 is not.  This term will be either preceded
-          ** or follwed by an inverted copy (t2.b==t1.a).  Skip this term 
-          ** and use its inversion. */
-          testcase( pOrTerm->wtFlags & TERM_COPIED );
-          testcase( pOrTerm->wtFlags & TERM_VIRTUAL );
-          assert( pOrTerm->wtFlags & (TERM_COPIED|TERM_VIRTUAL) );
-          continue;
-        }
-        iColumn = pOrTerm->u.leftColumn;
-        iCursor = pOrTerm->leftCursor;
-        pLeft = pOrTerm->pExpr->pLeft;
-        break;
-      }
-      if( i<0 ){
-        /* No candidate table+column was found.  This can only occur
-        ** on the second iteration */
-        assert( j==1 );
-        assert( IsPowerOfTwo(chngToIN) );
-        assert( chngToIN==tdsqlite3WhereGetMask(&pWInfo->sMaskSet, iCursor) );
-        break;
-      }
-      testcase( j==1 );
-
-      /* We have found a candidate table and column.  Check to see if that
-      ** table and column is common to every term in the OR clause */
-      okToChngToIN = 1;
-      for(; i>=0 && okToChngToIN; i--, pOrTerm++){
-        assert( pOrTerm->eOperator & WO_EQ );
-        if( pOrTerm->leftCursor!=iCursor ){
-          pOrTerm->wtFlags &= ~TERM_OR_OK;
-        }else if( pOrTerm->u.leftColumn!=iColumn || (iColumn==XN_EXPR 
-               && tdsqlite3ExprCompare(pParse, pOrTerm->pExpr->pLeft, pLeft, -1)
-        )){
-          okToChngToIN = 0;
-        }else{
-          int affLeft, affRight;
-          /* If the right-hand side is also a column, then the affinities
-          ** of both right and left sides must be such that no type
-          ** conversions are required on the right.  (Ticket #2249)
-          */
-          affRight = tdsqlite3ExprAffinity(pOrTerm->pExpr->pRight);
-          affLeft = tdsqlite3ExprAffinity(pOrTerm->pExpr->pLeft);
-          if( affRight!=0 && affRight!=affLeft ){
-            okToChngToIN = 0;
-          }else{
-            pOrTerm->wtFlags |= TERM_OR_OK;
-          }
-        }
-      }
-    }
-
-    /* At this point, okToChngToIN is true if original pTerm satisfies
-    ** case 1.  In that case, construct a new virtual term that is 
-    ** pTerm converted into an IN operator.
-    */
-    if( okToChngToIN ){
-      Expr *pDup;            /* A transient duplicate expression */
-      ExprList *pList = 0;   /* The RHS of the IN operator */
-      Expr *pLeft = 0;       /* The LHS of the IN operator */
-      Expr *pNew;            /* The complete IN operator */
-
-      for(i=pOrWc->nTerm-1, pOrTerm=pOrWc->a; i>=0; i--, pOrTerm++){
-        if( (pOrTerm->wtFlags & TERM_OR_OK)==0 ) continue;
-        assert( pOrTerm->eOperator & WO_EQ );
-        assert( pOrTerm->leftCursor==iCursor );
-        assert( pOrTerm->u.leftColumn==iColumn );
-        pDup = tdsqlite3ExprDup(db, pOrTerm->pExpr->pRight, 0);
-        pList = tdsqlite3ExprListAppend(pWInfo->pParse, pList, pDup);
-        pLeft = pOrTerm->pExpr->pLeft;
-      }
-      assert( pLeft!=0 );
-      pDup = tdsqlite3ExprDup(db, pLeft, 0);
-      pNew = tdsqlite3PExpr(pParse, TK_IN, pDup, 0);
-      if( pNew ){
-        int idxNew;
-        transferJoinMarkings(pNew, pExpr);
-        assert( !ExprHasProperty(pNew, EP_xIsSelect) );
-        pNew->x.pList = pList;
-        idxNew = whereClauseInsert(pWC, pNew, TERM_VIRTUAL|TERM_DYNAMIC);
-        testcase( idxNew==0 );
-        exprAnalyze(pSrc, pWC, idxNew);
-        /* pTerm = &pWC->a[idxTerm]; // would be needed if pTerm where used again */
-        markTermAsChild(pWC, idxNew, idxTerm);
-      }else{
-        tdsqlite3ExprListDelete(db, pList);
-      }
-    }
-  }
-}
-#endif /* !SQLITE_OMIT_OR_OPTIMIZATION && !SQLITE_OMIT_SUBQUERY */
-
-/*
-** We already know that pExpr is a binary operator where both operands are
-** column references.  This routine checks to see if pExpr is an equivalence
-** relation:
-**   1.  The SQLITE_Transitive optimization must be enabled
-**   2.  Must be either an == or an IS operator
-**   3.  Not originating in the ON clause of an OUTER JOIN
-**   4.  The affinities of A and B must be compatible
-**   5a. Both operands use the same collating sequence OR
-**   5b. The overall collating sequence is BINARY
-** If this routine returns TRUE, that means that the RHS can be substituted
-** for the LHS anyplace else in the WHERE clause where the LHS column occurs.
-** This is an optimization.  No harm comes from returning 0.  But if 1 is
-** returned when it should not be, then incorrect answers might result.
-*/
-static int termIsEquivalence(Parse *pParse, Expr *pExpr){
-  char aff1, aff2;
-  CollSeq *pColl;
-  if( !OptimizationEnabled(pParse->db, SQLITE_Transitive) ) return 0;
-  if( pExpr->op!=TK_EQ && pExpr->op!=TK_IS ) return 0;
-  if( ExprHasProperty(pExpr, EP_FromJoin) ) return 0;
-  aff1 = tdsqlite3ExprAffinity(pExpr->pLeft);
-  aff2 = tdsqlite3ExprAffinity(pExpr->pRight);
-  if( aff1!=aff2
-   && (!tdsqlite3IsNumericAffinity(aff1) || !tdsqlite3IsNumericAffinity(aff2))
-  ){
-    return 0;
-  }
-  pColl = tdsqlite3ExprCompareCollSeq(pParse, pExpr);
-  if( tdsqlite3IsBinary(pColl) ) return 1;
-  return tdsqlite3ExprCollSeqMatch(pParse, pExpr->pLeft, pExpr->pRight);
-}
-
-/*
-** Recursively walk the expressions of a SELECT statement and generate
-** a bitmask indicating which tables are used in that expression
-** tree.
-*/
-static Bitmask exprSelectUsage(WhereMaskSet *pMaskSet, Select *pS){
-  Bitmask mask = 0;
-  while( pS ){
-    SrcList *pSrc = pS->pSrc;
-    mask |= tdsqlite3WhereExprListUsage(pMaskSet, pS->pEList);
-    mask |= tdsqlite3WhereExprListUsage(pMaskSet, pS->pGroupBy);
-    mask |= tdsqlite3WhereExprListUsage(pMaskSet, pS->pOrderBy);
-    mask |= tdsqlite3WhereExprUsage(pMaskSet, pS->pWhere);
-    mask |= tdsqlite3WhereExprUsage(pMaskSet, pS->pHaving);
-    if( ALWAYS(pSrc!=0) ){
-      int i;
-      for(i=0; i<pSrc->nSrc; i++){
-        mask |= exprSelectUsage(pMaskSet, pSrc->a[i].pSelect);
-        mask |= tdsqlite3WhereExprUsage(pMaskSet, pSrc->a[i].pOn);
-        if( pSrc->a[i].fg.isTabFunc ){
-          mask |= tdsqlite3WhereExprListUsage(pMaskSet, pSrc->a[i].u1.pFuncArg);
-        }
-      }
-    }
-    pS = pS->pPrior;
-  }
-  return mask;
-}
-
-/*
-** Expression pExpr is one operand of a comparison operator that might
-** be useful for indexing.  This routine checks to see if pExpr appears
-** in any index.  Return TRUE (1) if pExpr is an indexed term and return
-** FALSE (0) if not.  If TRUE is returned, also set aiCurCol[0] to the cursor
-** number of the table that is indexed and aiCurCol[1] to the column number
-** of the column that is indexed, or XN_EXPR (-2) if an expression is being
-** indexed.
-**
-** If pExpr is a TK_COLUMN column reference, then this routine always returns
-** true even if that particular column is not indexed, because the column
-** might be added to an automatic index later.
-*/
-static SQLITE_NOINLINE int exprMightBeIndexed2(
-  SrcList *pFrom,        /* The FROM clause */
-  Bitmask mPrereq,       /* Bitmask of FROM clause terms referenced by pExpr */
-  int *aiCurCol,         /* Write the referenced table cursor and column here */
-  Expr *pExpr            /* An operand of a comparison operator */
-){
-  Index *pIdx;
-  int i;
-  int iCur;
-  for(i=0; mPrereq>1; i++, mPrereq>>=1){}
-  iCur = pFrom->a[i].iCursor;
-  for(pIdx=pFrom->a[i].pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-    if( pIdx->aColExpr==0 ) continue;
-    for(i=0; i<pIdx->nKeyCol; i++){
-      if( pIdx->aiColumn[i]!=XN_EXPR ) continue;
-      if( tdsqlite3ExprCompareSkip(pExpr, pIdx->aColExpr->a[i].pExpr, iCur)==0 ){
-        aiCurCol[0] = iCur;
-        aiCurCol[1] = XN_EXPR;
-        return 1;
-      }
-    }
-  }
-  return 0;
-}
-static int exprMightBeIndexed(
-  SrcList *pFrom,        /* The FROM clause */
-  Bitmask mPrereq,       /* Bitmask of FROM clause terms referenced by pExpr */
-  int *aiCurCol,         /* Write the referenced table cursor & column here */
-  Expr *pExpr,           /* An operand of a comparison operator */
-  int op                 /* The specific comparison operator */
-){
-  /* If this expression is a vector to the left or right of a 
-  ** inequality constraint (>, <, >= or <=), perform the processing 
-  ** on the first element of the vector.  */
-  assert( TK_GT+1==TK_LE && TK_GT+2==TK_LT && TK_GT+3==TK_GE );
-  assert( TK_IS<TK_GE && TK_ISNULL<TK_GE && TK_IN<TK_GE );
-  assert( op<=TK_GE );
-  if( pExpr->op==TK_VECTOR && (op>=TK_GT && ALWAYS(op<=TK_GE)) ){
-    pExpr = pExpr->x.pList->a[0].pExpr;
-  }
-
-  if( pExpr->op==TK_COLUMN ){
-    aiCurCol[0] = pExpr->iTable;
-    aiCurCol[1] = pExpr->iColumn;
-    return 1;
-  }
-  if( mPrereq==0 ) return 0;                 /* No table references */
-  if( (mPrereq&(mPrereq-1))!=0 ) return 0;   /* Refs more than one table */
-  return exprMightBeIndexed2(pFrom,mPrereq,aiCurCol,pExpr);
-}
-
-/*
-** The input to this routine is an WhereTerm structure with only the
-** "pExpr" field filled in.  The job of this routine is to analyze the
-** subexpression and populate all the other fields of the WhereTerm
-** structure.
-**
-** If the expression is of the form "<expr> <op> X" it gets commuted
-** to the standard form of "X <op> <expr>".
-**
-** If the expression is of the form "X <op> Y" where both X and Y are
-** columns, then the original expression is unchanged and a new virtual
-** term of the form "Y <op> X" is added to the WHERE clause and
-** analyzed separately.  The original term is marked with TERM_COPIED
-** and the new term is marked with TERM_DYNAMIC (because it's pExpr
-** needs to be freed with the WhereClause) and TERM_VIRTUAL (because it
-** is a commuted copy of a prior term.)  The original term has nChild=1
-** and the copy has idxParent set to the index of the original term.
-*/
-static void exprAnalyze(
-  SrcList *pSrc,            /* the FROM clause */
-  WhereClause *pWC,         /* the WHERE clause */
-  int idxTerm               /* Index of the term to be analyzed */
-){
-  WhereInfo *pWInfo = pWC->pWInfo; /* WHERE clause processing context */
-  WhereTerm *pTerm;                /* The term to be analyzed */
-  WhereMaskSet *pMaskSet;          /* Set of table index masks */
-  Expr *pExpr;                     /* The expression to be analyzed */
-  Bitmask prereqLeft;              /* Prerequesites of the pExpr->pLeft */
-  Bitmask prereqAll;               /* Prerequesites of pExpr */
-  Bitmask extraRight = 0;          /* Extra dependencies on LEFT JOIN */
-  Expr *pStr1 = 0;                 /* RHS of LIKE/GLOB operator */
-  int isComplete = 0;              /* RHS of LIKE/GLOB ends with wildcard */
-  int noCase = 0;                  /* uppercase equivalent to lowercase */
-  int op;                          /* Top-level operator.  pExpr->op */
-  Parse *pParse = pWInfo->pParse;  /* Parsing context */
-  tdsqlite3 *db = pParse->db;        /* Database connection */
-  unsigned char eOp2 = 0;          /* op2 value for LIKE/REGEXP/GLOB */
-  int nLeft;                       /* Number of elements on left side vector */
-
-  if( db->mallocFailed ){
-    return;
-  }
-  pTerm = &pWC->a[idxTerm];
-  pMaskSet = &pWInfo->sMaskSet;
-  pExpr = pTerm->pExpr;
-  assert( pExpr->op!=TK_AS && pExpr->op!=TK_COLLATE );
-  prereqLeft = tdsqlite3WhereExprUsage(pMaskSet, pExpr->pLeft);
-  op = pExpr->op;
-  if( op==TK_IN ){
-    assert( pExpr->pRight==0 );
-    if( tdsqlite3ExprCheckIN(pParse, pExpr) ) return;
-    if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-      pTerm->prereqRight = exprSelectUsage(pMaskSet, pExpr->x.pSelect);
-    }else{
-      pTerm->prereqRight = tdsqlite3WhereExprListUsage(pMaskSet, pExpr->x.pList);
-    }
-  }else if( op==TK_ISNULL ){
-    pTerm->prereqRight = 0;
-  }else{
-    pTerm->prereqRight = tdsqlite3WhereExprUsage(pMaskSet, pExpr->pRight);
-  }
-  pMaskSet->bVarSelect = 0;
-  prereqAll = tdsqlite3WhereExprUsageNN(pMaskSet, pExpr);
-  if( pMaskSet->bVarSelect ) pTerm->wtFlags |= TERM_VARSELECT;
-  if( ExprHasProperty(pExpr, EP_FromJoin) ){
-    Bitmask x = tdsqlite3WhereGetMask(pMaskSet, pExpr->iRightJoinTable);
-    prereqAll |= x;
-    extraRight = x-1;  /* ON clause terms may not be used with an index
-                       ** on left table of a LEFT JOIN.  Ticket #3015 */
-    if( (prereqAll>>1)>=x ){
-      tdsqlite3ErrorMsg(pParse, "ON clause references tables to its right");
-      return;
-    }
-  }
-  pTerm->prereqAll = prereqAll;
-  pTerm->leftCursor = -1;
-  pTerm->iParent = -1;
-  pTerm->eOperator = 0;
-  if( allowedOp(op) ){
-    int aiCurCol[2];
-    Expr *pLeft = tdsqlite3ExprSkipCollate(pExpr->pLeft);
-    Expr *pRight = tdsqlite3ExprSkipCollate(pExpr->pRight);
-    u16 opMask = (pTerm->prereqRight & prereqLeft)==0 ? WO_ALL : WO_EQUIV;
-
-    if( pTerm->iField>0 ){
-      assert( op==TK_IN );
-      assert( pLeft->op==TK_VECTOR );
-      pLeft = pLeft->x.pList->a[pTerm->iField-1].pExpr;
-    }
-
-    if( exprMightBeIndexed(pSrc, prereqLeft, aiCurCol, pLeft, op) ){
-      pTerm->leftCursor = aiCurCol[0];
-      pTerm->u.leftColumn = aiCurCol[1];
-      pTerm->eOperator = operatorMask(op) & opMask;
-    }
-    if( op==TK_IS ) pTerm->wtFlags |= TERM_IS;
-    if( pRight 
-     && exprMightBeIndexed(pSrc, pTerm->prereqRight, aiCurCol, pRight, op)
-    ){
-      WhereTerm *pNew;
-      Expr *pDup;
-      u16 eExtraOp = 0;        /* Extra bits for pNew->eOperator */
-      assert( pTerm->iField==0 );
-      if( pTerm->leftCursor>=0 ){
-        int idxNew;
-        pDup = tdsqlite3ExprDup(db, pExpr, 0);
-        if( db->mallocFailed ){
-          tdsqlite3ExprDelete(db, pDup);
-          return;
-        }
-        idxNew = whereClauseInsert(pWC, pDup, TERM_VIRTUAL|TERM_DYNAMIC);
-        if( idxNew==0 ) return;
-        pNew = &pWC->a[idxNew];
-        markTermAsChild(pWC, idxNew, idxTerm);
-        if( op==TK_IS ) pNew->wtFlags |= TERM_IS;
-        pTerm = &pWC->a[idxTerm];
-        pTerm->wtFlags |= TERM_COPIED;
-
-        if( termIsEquivalence(pParse, pDup) ){
-          pTerm->eOperator |= WO_EQUIV;
-          eExtraOp = WO_EQUIV;
-        }
-      }else{
-        pDup = pExpr;
-        pNew = pTerm;
-      }
-      pNew->wtFlags |= exprCommute(pParse, pDup);
-      pNew->leftCursor = aiCurCol[0];
-      pNew->u.leftColumn = aiCurCol[1];
-      testcase( (prereqLeft | extraRight) != prereqLeft );
-      pNew->prereqRight = prereqLeft | extraRight;
-      pNew->prereqAll = prereqAll;
-      pNew->eOperator = (operatorMask(pDup->op) + eExtraOp) & opMask;
-    }
-  }
-
-#ifndef SQLITE_OMIT_BETWEEN_OPTIMIZATION
-  /* If a term is the BETWEEN operator, create two new virtual terms
-  ** that define the range that the BETWEEN implements.  For example:
-  **
-  **      a BETWEEN b AND c
-  **
-  ** is converted into:
-  **
-  **      (a BETWEEN b AND c) AND (a>=b) AND (a<=c)
-  **
-  ** The two new terms are added onto the end of the WhereClause object.
-  ** The new terms are "dynamic" and are children of the original BETWEEN
-  ** term.  That means that if the BETWEEN term is coded, the children are
-  ** skipped.  Or, if the children are satisfied by an index, the original
-  ** BETWEEN term is skipped.
-  */
-  else if( pExpr->op==TK_BETWEEN && pWC->op==TK_AND ){
-    ExprList *pList = pExpr->x.pList;
-    int i;
-    static const u8 ops[] = {TK_GE, TK_LE};
-    assert( pList!=0 );
-    assert( pList->nExpr==2 );
-    for(i=0; i<2; i++){
-      Expr *pNewExpr;
-      int idxNew;
-      pNewExpr = tdsqlite3PExpr(pParse, ops[i], 
-                             tdsqlite3ExprDup(db, pExpr->pLeft, 0),
-                             tdsqlite3ExprDup(db, pList->a[i].pExpr, 0));
-      transferJoinMarkings(pNewExpr, pExpr);
-      idxNew = whereClauseInsert(pWC, pNewExpr, TERM_VIRTUAL|TERM_DYNAMIC);
-      testcase( idxNew==0 );
-      exprAnalyze(pSrc, pWC, idxNew);
-      pTerm = &pWC->a[idxTerm];
-      markTermAsChild(pWC, idxNew, idxTerm);
-    }
-  }
-#endif /* SQLITE_OMIT_BETWEEN_OPTIMIZATION */
-
-#if !defined(SQLITE_OMIT_OR_OPTIMIZATION) && !defined(SQLITE_OMIT_SUBQUERY)
-  /* Analyze a term that is composed of two or more subterms connected by
-  ** an OR operator.
-  */
-  else if( pExpr->op==TK_OR ){
-    assert( pWC->op==TK_AND );
-    exprAnalyzeOrTerm(pSrc, pWC, idxTerm);
-    pTerm = &pWC->a[idxTerm];
-  }
-#endif /* SQLITE_OMIT_OR_OPTIMIZATION */
-
-#ifndef SQLITE_OMIT_LIKE_OPTIMIZATION
-  /* Add constraints to reduce the search space on a LIKE or GLOB
-  ** operator.
-  **
-  ** A like pattern of the form "x LIKE 'aBc%'" is changed into constraints
-  **
-  **          x>='ABC' AND x<'abd' AND x LIKE 'aBc%'
-  **
-  ** The last character of the prefix "abc" is incremented to form the
-  ** termination condition "abd".  If case is not significant (the default
-  ** for LIKE) then the lower-bound is made all uppercase and the upper-
-  ** bound is made all lowercase so that the bounds also work when comparing
-  ** BLOBs.
-  */
-  if( pWC->op==TK_AND 
-   && isLikeOrGlob(pParse, pExpr, &pStr1, &isComplete, &noCase)
-  ){
-    Expr *pLeft;       /* LHS of LIKE/GLOB operator */
-    Expr *pStr2;       /* Copy of pStr1 - RHS of LIKE/GLOB operator */
-    Expr *pNewExpr1;
-    Expr *pNewExpr2;
-    int idxNew1;
-    int idxNew2;
-    const char *zCollSeqName;     /* Name of collating sequence */
-    const u16 wtFlags = TERM_LIKEOPT | TERM_VIRTUAL | TERM_DYNAMIC;
-
-    pLeft = pExpr->x.pList->a[1].pExpr;
-    pStr2 = tdsqlite3ExprDup(db, pStr1, 0);
-
-    /* Convert the lower bound to upper-case and the upper bound to
-    ** lower-case (upper-case is less than lower-case in ASCII) so that
-    ** the range constraints also work for BLOBs
-    */
-    if( noCase && !pParse->db->mallocFailed ){
-      int i;
-      char c;
-      pTerm->wtFlags |= TERM_LIKE;
-      for(i=0; (c = pStr1->u.zToken[i])!=0; i++){
-        pStr1->u.zToken[i] = tdsqlite3Toupper(c);
-        pStr2->u.zToken[i] = tdsqlite3Tolower(c);
-      }
-    }
-
-    if( !db->mallocFailed ){
-      u8 c, *pC;       /* Last character before the first wildcard */
-      pC = (u8*)&pStr2->u.zToken[tdsqlite3Strlen30(pStr2->u.zToken)-1];
-      c = *pC;
-      if( noCase ){
-        /* The point is to increment the last character before the first
-        ** wildcard.  But if we increment '@', that will push it into the
-        ** alphabetic range where case conversions will mess up the 
-        ** inequality.  To avoid this, make sure to also run the full
-        ** LIKE on all candidate expressions by clearing the isComplete flag
-        */
-        if( c=='A'-1 ) isComplete = 0;
-        c = tdsqlite3UpperToLower[c];
-      }
-      *pC = c + 1;
-    }
-    zCollSeqName = noCase ? "NOCASE" : tdsqlite3StrBINARY;
-    pNewExpr1 = tdsqlite3ExprDup(db, pLeft, 0);
-    pNewExpr1 = tdsqlite3PExpr(pParse, TK_GE,
-           tdsqlite3ExprAddCollateString(pParse,pNewExpr1,zCollSeqName),
-           pStr1);
-    transferJoinMarkings(pNewExpr1, pExpr);
-    idxNew1 = whereClauseInsert(pWC, pNewExpr1, wtFlags);
-    testcase( idxNew1==0 );
-    exprAnalyze(pSrc, pWC, idxNew1);
-    pNewExpr2 = tdsqlite3ExprDup(db, pLeft, 0);
-    pNewExpr2 = tdsqlite3PExpr(pParse, TK_LT,
-           tdsqlite3ExprAddCollateString(pParse,pNewExpr2,zCollSeqName),
-           pStr2);
-    transferJoinMarkings(pNewExpr2, pExpr);
-    idxNew2 = whereClauseInsert(pWC, pNewExpr2, wtFlags);
-    testcase( idxNew2==0 );
-    exprAnalyze(pSrc, pWC, idxNew2);
-    pTerm = &pWC->a[idxTerm];
-    if( isComplete ){
-      markTermAsChild(pWC, idxNew1, idxTerm);
-      markTermAsChild(pWC, idxNew2, idxTerm);
-    }
-  }
-#endif /* SQLITE_OMIT_LIKE_OPTIMIZATION */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  /* Add a WO_AUX auxiliary term to the constraint set if the
-  ** current expression is of the form "column OP expr" where OP
-  ** is an operator that gets passed into virtual tables but which is
-  ** not normally optimized for ordinary tables.  In other words, OP
-  ** is one of MATCH, LIKE, GLOB, REGEXP, !=, IS, IS NOT, or NOT NULL.
-  ** This information is used by the xBestIndex methods of
-  ** virtual tables.  The native query optimizer does not attempt
-  ** to do anything with MATCH functions.
-  */
-  if( pWC->op==TK_AND ){
-    Expr *pRight = 0, *pLeft = 0;
-    int res = isAuxiliaryVtabOperator(db, pExpr, &eOp2, &pLeft, &pRight);
-    while( res-- > 0 ){
-      int idxNew;
-      WhereTerm *pNewTerm;
-      Bitmask prereqColumn, prereqExpr;
-
-      prereqExpr = tdsqlite3WhereExprUsage(pMaskSet, pRight);
-      prereqColumn = tdsqlite3WhereExprUsage(pMaskSet, pLeft);
-      if( (prereqExpr & prereqColumn)==0 ){
-        Expr *pNewExpr;
-        pNewExpr = tdsqlite3PExpr(pParse, TK_MATCH, 
-            0, tdsqlite3ExprDup(db, pRight, 0));
-        if( ExprHasProperty(pExpr, EP_FromJoin) && pNewExpr ){
-          ExprSetProperty(pNewExpr, EP_FromJoin);
-          pNewExpr->iRightJoinTable = pExpr->iRightJoinTable;
-        }
-        idxNew = whereClauseInsert(pWC, pNewExpr, TERM_VIRTUAL|TERM_DYNAMIC);
-        testcase( idxNew==0 );
-        pNewTerm = &pWC->a[idxNew];
-        pNewTerm->prereqRight = prereqExpr;
-        pNewTerm->leftCursor = pLeft->iTable;
-        pNewTerm->u.leftColumn = pLeft->iColumn;
-        pNewTerm->eOperator = WO_AUX;
-        pNewTerm->eMatchOp = eOp2;
-        markTermAsChild(pWC, idxNew, idxTerm);
-        pTerm = &pWC->a[idxTerm];
-        pTerm->wtFlags |= TERM_COPIED;
-        pNewTerm->prereqAll = pTerm->prereqAll;
-      }
-      SWAP(Expr*, pLeft, pRight);
-    }
-  }
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-  /* If there is a vector == or IS term - e.g. "(a, b) == (?, ?)" - create
-  ** new terms for each component comparison - "a = ?" and "b = ?".  The
-  ** new terms completely replace the original vector comparison, which is
-  ** no longer used.
-  **
-  ** This is only required if at least one side of the comparison operation
-  ** is not a sub-select.  */
-  if( pWC->op==TK_AND 
-  && (pExpr->op==TK_EQ || pExpr->op==TK_IS)
-  && (nLeft = tdsqlite3ExprVectorSize(pExpr->pLeft))>1
-  && tdsqlite3ExprVectorSize(pExpr->pRight)==nLeft
-  && ( (pExpr->pLeft->flags & EP_xIsSelect)==0 
-    || (pExpr->pRight->flags & EP_xIsSelect)==0)
-  ){
-    int i;
-    for(i=0; i<nLeft; i++){
-      int idxNew;
-      Expr *pNew;
-      Expr *pLeft = tdsqlite3ExprForVectorField(pParse, pExpr->pLeft, i);
-      Expr *pRight = tdsqlite3ExprForVectorField(pParse, pExpr->pRight, i);
-
-      pNew = tdsqlite3PExpr(pParse, pExpr->op, pLeft, pRight);
-      transferJoinMarkings(pNew, pExpr);
-      idxNew = whereClauseInsert(pWC, pNew, TERM_DYNAMIC);
-      exprAnalyze(pSrc, pWC, idxNew);
-    }
-    pTerm = &pWC->a[idxTerm];
-    pTerm->wtFlags |= TERM_CODED|TERM_VIRTUAL;  /* Disable the original */
-    pTerm->eOperator = 0;
-  }
-
-  /* If there is a vector IN term - e.g. "(a, b) IN (SELECT ...)" - create
-  ** a virtual term for each vector component. The expression object
-  ** used by each such virtual term is pExpr (the full vector IN(...) 
-  ** expression). The WhereTerm.iField variable identifies the index within
-  ** the vector on the LHS that the virtual term represents.
-  **
-  ** This only works if the RHS is a simple SELECT (not a compound) that does
-  ** not use window functions.
-  */
-  if( pWC->op==TK_AND && pExpr->op==TK_IN && pTerm->iField==0
-   && pExpr->pLeft->op==TK_VECTOR
-   && pExpr->x.pSelect->pPrior==0
-#ifndef SQLITE_OMIT_WINDOWFUNC
-   && pExpr->x.pSelect->pWin==0
-#endif
-  ){
-    int i;
-    for(i=0; i<tdsqlite3ExprVectorSize(pExpr->pLeft); i++){
-      int idxNew;
-      idxNew = whereClauseInsert(pWC, pExpr, TERM_VIRTUAL);
-      pWC->a[idxNew].iField = i+1;
-      exprAnalyze(pSrc, pWC, idxNew);
-      markTermAsChild(pWC, idxNew, idxTerm);
-    }
-  }
-
-#ifdef SQLITE_ENABLE_STAT4
-  /* When sqlite_stat4 histogram data is available an operator of the
-  ** form "x IS NOT NULL" can sometimes be evaluated more efficiently
-  ** as "x>NULL" if x is not an INTEGER PRIMARY KEY.  So construct a
-  ** virtual term of that form.
-  **
-  ** Note that the virtual term must be tagged with TERM_VNULL.
-  */
-  if( pExpr->op==TK_NOTNULL
-   && pExpr->pLeft->op==TK_COLUMN
-   && pExpr->pLeft->iColumn>=0
-   && !ExprHasProperty(pExpr, EP_FromJoin)
-   && OptimizationEnabled(db, SQLITE_Stat4)
-  ){
-    Expr *pNewExpr;
-    Expr *pLeft = pExpr->pLeft;
-    int idxNew;
-    WhereTerm *pNewTerm;
-
-    pNewExpr = tdsqlite3PExpr(pParse, TK_GT,
-                            tdsqlite3ExprDup(db, pLeft, 0),
-                            tdsqlite3ExprAlloc(db, TK_NULL, 0, 0));
-
-    idxNew = whereClauseInsert(pWC, pNewExpr,
-                              TERM_VIRTUAL|TERM_DYNAMIC|TERM_VNULL);
-    if( idxNew ){
-      pNewTerm = &pWC->a[idxNew];
-      pNewTerm->prereqRight = 0;
-      pNewTerm->leftCursor = pLeft->iTable;
-      pNewTerm->u.leftColumn = pLeft->iColumn;
-      pNewTerm->eOperator = WO_GT;
-      markTermAsChild(pWC, idxNew, idxTerm);
-      pTerm = &pWC->a[idxTerm];
-      pTerm->wtFlags |= TERM_COPIED;
-      pNewTerm->prereqAll = pTerm->prereqAll;
-    }
-  }
-#endif /* SQLITE_ENABLE_STAT4 */
-
-  /* Prevent ON clause terms of a LEFT JOIN from being used to drive
-  ** an index for tables to the left of the join.
-  */
-  testcase( pTerm!=&pWC->a[idxTerm] );
-  pTerm = &pWC->a[idxTerm];
-  pTerm->prereqRight |= extraRight;
-}
-
-/***************************************************************************
-** Routines with file scope above.  Interface to the rest of the where.c
-** subsystem follows.
-***************************************************************************/
-
-/*
-** This routine identifies subexpressions in the WHERE clause where
-** each subexpression is separated by the AND operator or some other
-** operator specified in the op parameter.  The WhereClause structure
-** is filled with pointers to subexpressions.  For example:
-**
-**    WHERE  a=='hello' AND coalesce(b,11)<10 AND (c+12!=d OR c==22)
-**           \________/     \_______________/     \________________/
-**            slot[0]            slot[1]               slot[2]
-**
-** The original WHERE clause in pExpr is unaltered.  All this routine
-** does is make slot[] entries point to substructure within pExpr.
-**
-** In the previous sentence and in the diagram, "slot[]" refers to
-** the WhereClause.a[] array.  The slot[] array grows as needed to contain
-** all terms of the WHERE clause.
-*/
-SQLITE_PRIVATE void tdsqlite3WhereSplit(WhereClause *pWC, Expr *pExpr, u8 op){
-  Expr *pE2 = tdsqlite3ExprSkipCollateAndLikely(pExpr);
-  pWC->op = op;
-  if( pE2==0 ) return;
-  if( pE2->op!=op ){
-    whereClauseInsert(pWC, pExpr, 0);
-  }else{
-    tdsqlite3WhereSplit(pWC, pE2->pLeft, op);
-    tdsqlite3WhereSplit(pWC, pE2->pRight, op);
-  }
-}
-
-/*
-** Initialize a preallocated WhereClause structure.
-*/
-SQLITE_PRIVATE void tdsqlite3WhereClauseInit(
-  WhereClause *pWC,        /* The WhereClause to be initialized */
-  WhereInfo *pWInfo        /* The WHERE processing context */
-){
-  pWC->pWInfo = pWInfo;
-  pWC->hasOr = 0;
-  pWC->pOuter = 0;
-  pWC->nTerm = 0;
-  pWC->nSlot = ArraySize(pWC->aStatic);
-  pWC->a = pWC->aStatic;
-}
-
-/*
-** Deallocate a WhereClause structure.  The WhereClause structure
-** itself is not freed.  This routine is the inverse of
-** tdsqlite3WhereClauseInit().
-*/
-SQLITE_PRIVATE void tdsqlite3WhereClauseClear(WhereClause *pWC){
-  int i;
-  WhereTerm *a;
-  tdsqlite3 *db = pWC->pWInfo->pParse->db;
-  for(i=pWC->nTerm-1, a=pWC->a; i>=0; i--, a++){
-    if( a->wtFlags & TERM_DYNAMIC ){
-      tdsqlite3ExprDelete(db, a->pExpr);
-    }
-    if( a->wtFlags & TERM_ORINFO ){
-      whereOrInfoDelete(db, a->u.pOrInfo);
-    }else if( a->wtFlags & TERM_ANDINFO ){
-      whereAndInfoDelete(db, a->u.pAndInfo);
-    }
-  }
-  if( pWC->a!=pWC->aStatic ){
-    tdsqlite3DbFree(db, pWC->a);
-  }
-}
-
-
-/*
-** These routines walk (recursively) an expression tree and generate
-** a bitmask indicating which tables are used in that expression
-** tree.
-*/
-SQLITE_PRIVATE Bitmask tdsqlite3WhereExprUsageNN(WhereMaskSet *pMaskSet, Expr *p){
-  Bitmask mask;
-  if( p->op==TK_COLUMN && !ExprHasProperty(p, EP_FixedCol) ){
-    return tdsqlite3WhereGetMask(pMaskSet, p->iTable);
-  }else if( ExprHasProperty(p, EP_TokenOnly|EP_Leaf) ){
-    assert( p->op!=TK_IF_NULL_ROW );
-    return 0;
-  }
-  mask = (p->op==TK_IF_NULL_ROW) ? tdsqlite3WhereGetMask(pMaskSet, p->iTable) : 0;
-  if( p->pLeft ) mask |= tdsqlite3WhereExprUsageNN(pMaskSet, p->pLeft);
-  if( p->pRight ){
-    mask |= tdsqlite3WhereExprUsageNN(pMaskSet, p->pRight);
-    assert( p->x.pList==0 );
-  }else if( ExprHasProperty(p, EP_xIsSelect) ){
-    if( ExprHasProperty(p, EP_VarSelect) ) pMaskSet->bVarSelect = 1;
-    mask |= exprSelectUsage(pMaskSet, p->x.pSelect);
-  }else if( p->x.pList ){
-    mask |= tdsqlite3WhereExprListUsage(pMaskSet, p->x.pList);
-  }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  if( (p->op==TK_FUNCTION || p->op==TK_AGG_FUNCTION) && p->y.pWin ){
-    mask |= tdsqlite3WhereExprListUsage(pMaskSet, p->y.pWin->pPartition);
-    mask |= tdsqlite3WhereExprListUsage(pMaskSet, p->y.pWin->pOrderBy);
-    mask |= tdsqlite3WhereExprUsage(pMaskSet, p->y.pWin->pFilter);
-  }
-#endif
-  return mask;
-}
-SQLITE_PRIVATE Bitmask tdsqlite3WhereExprUsage(WhereMaskSet *pMaskSet, Expr *p){
-  return p ? tdsqlite3WhereExprUsageNN(pMaskSet,p) : 0;
-}
-SQLITE_PRIVATE Bitmask tdsqlite3WhereExprListUsage(WhereMaskSet *pMaskSet, ExprList *pList){
-  int i;
-  Bitmask mask = 0;
-  if( pList ){
-    for(i=0; i<pList->nExpr; i++){
-      mask |= tdsqlite3WhereExprUsage(pMaskSet, pList->a[i].pExpr);
-    }
-  }
-  return mask;
-}
-
-
-/*
-** Call exprAnalyze on all terms in a WHERE clause.  
-**
-** Note that exprAnalyze() might add new virtual terms onto the
-** end of the WHERE clause.  We do not want to analyze these new
-** virtual terms, so start analyzing at the end and work forward
-** so that the added virtual terms are never processed.
-*/
-SQLITE_PRIVATE void tdsqlite3WhereExprAnalyze(
-  SrcList *pTabList,       /* the FROM clause */
-  WhereClause *pWC         /* the WHERE clause to be analyzed */
-){
-  int i;
-  for(i=pWC->nTerm-1; i>=0; i--){
-    exprAnalyze(pTabList, pWC, i);
-  }
-}
-
-/*
-** For table-valued-functions, transform the function arguments into
-** new WHERE clause terms.  
-**
-** Each function argument translates into an equality constraint against
-** a HIDDEN column in the table.
-*/
-SQLITE_PRIVATE void tdsqlite3WhereTabFuncArgs(
-  Parse *pParse,                    /* Parsing context */
-  struct SrcList_item *pItem,       /* The FROM clause term to process */
-  WhereClause *pWC                  /* Xfer function arguments to here */
-){
-  Table *pTab;
-  int j, k;
-  ExprList *pArgs;
-  Expr *pColRef;
-  Expr *pTerm;
-  if( pItem->fg.isTabFunc==0 ) return;
-  pTab = pItem->pTab;
-  assert( pTab!=0 );
-  pArgs = pItem->u1.pFuncArg;
-  if( pArgs==0 ) return;
-  for(j=k=0; j<pArgs->nExpr; j++){
-    Expr *pRhs;
-    while( k<pTab->nCol && (pTab->aCol[k].colFlags & COLFLAG_HIDDEN)==0 ){k++;}
-    if( k>=pTab->nCol ){
-      tdsqlite3ErrorMsg(pParse, "too many arguments on %s() - max %d",
-                      pTab->zName, j);
-      return;
-    }
-    pColRef = tdsqlite3ExprAlloc(pParse->db, TK_COLUMN, 0, 0);
-    if( pColRef==0 ) return;
-    pColRef->iTable = pItem->iCursor;
-    pColRef->iColumn = k++;
-    pColRef->y.pTab = pTab;
-    pRhs = tdsqlite3PExpr(pParse, TK_UPLUS, 
-        tdsqlite3ExprDup(pParse->db, pArgs->a[j].pExpr, 0), 0);
-    pTerm = tdsqlite3PExpr(pParse, TK_EQ, pColRef, pRhs);
-    if( pItem->fg.jointype & JT_LEFT ){
-      tdsqlite3SetJoinExpr(pTerm, pItem->iCursor);
-    }
-    whereClauseInsert(pWC, pTerm, TERM_DYNAMIC);
-  }
-}
-
-/************** End of whereexpr.c *******************************************/
-/************** Begin file where.c *******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This module contains C code that generates VDBE code used to process
-** the WHERE clause of SQL statements.  This module is responsible for
-** generating the code that loops through a table looking for applicable
-** rows.  Indices are selected and used to speed the search when doing
-** so is applicable.  Because this module is responsible for selecting
-** indices, you might also think of this module as the "query optimizer".
-*/
-/* #include "sqliteInt.h" */
-/* #include "whereInt.h" */
-
-/*
-** Extra information appended to the end of tdsqlite3_index_info but not
-** visible to the xBestIndex function, at least not directly.  The
-** tdsqlite3_vtab_collation() interface knows how to reach it, however.
-**
-** This object is not an API and can be changed from one release to the
-** next.  As long as allocateIndexInfo() and tdsqlite3_vtab_collation()
-** agree on the structure, all will be well.
-*/
-typedef struct HiddenIndexInfo HiddenIndexInfo;
-struct HiddenIndexInfo {
-  WhereClause *pWC;   /* The Where clause being analyzed */
-  Parse *pParse;      /* The parsing context */
-};
-
-/* Forward declaration of methods */
-static int whereLoopResize(tdsqlite3*, WhereLoop*, int);
-
-/* Test variable that can be set to enable WHERE tracing */
-#if defined(SQLITE_TEST) || defined(SQLITE_DEBUG)
-/***/ int tdsqlite3WhereTrace = 0;
-#endif
-
-
-/*
-** Return the estimated number of output rows from a WHERE clause
-*/
-SQLITE_PRIVATE LogEst tdsqlite3WhereOutputRowCount(WhereInfo *pWInfo){
-  return pWInfo->nRowOut;
-}
-
-/*
-** Return one of the WHERE_DISTINCT_xxxxx values to indicate how this
-** WHERE clause returns outputs for DISTINCT processing.
-*/
-SQLITE_PRIVATE int tdsqlite3WhereIsDistinct(WhereInfo *pWInfo){
-  return pWInfo->eDistinct;
-}
-
-/*
-** Return TRUE if the WHERE clause returns rows in ORDER BY order.
-** Return FALSE if the output needs to be sorted.
-*/
-SQLITE_PRIVATE int tdsqlite3WhereIsOrdered(WhereInfo *pWInfo){
-  return pWInfo->nOBSat;
-}
-
-/*
-** In the ORDER BY LIMIT optimization, if the inner-most loop is known
-** to emit rows in increasing order, and if the last row emitted by the
-** inner-most loop did not fit within the sorter, then we can skip all
-** subsequent rows for the current iteration of the inner loop (because they
-** will not fit in the sorter either) and continue with the second inner
-** loop - the loop immediately outside the inner-most.
-**
-** When a row does not fit in the sorter (because the sorter already
-** holds LIMIT+OFFSET rows that are smaller), then a jump is made to the
-** label returned by this function.
-**
-** If the ORDER BY LIMIT optimization applies, the jump destination should
-** be the continuation for the second-inner-most loop.  If the ORDER BY
-** LIMIT optimization does not apply, then the jump destination should
-** be the continuation for the inner-most loop.
-**
-** It is always safe for this routine to return the continuation of the
-** inner-most loop, in the sense that a correct answer will result.  
-** Returning the continuation the second inner loop is an optimization
-** that might make the code run a little faster, but should not change
-** the final answer.
-*/
-SQLITE_PRIVATE int tdsqlite3WhereOrderByLimitOptLabel(WhereInfo *pWInfo){
-  WhereLevel *pInner;
-  if( !pWInfo->bOrderedInnerLoop ){
-    /* The ORDER BY LIMIT optimization does not apply.  Jump to the 
-    ** continuation of the inner-most loop. */
-    return pWInfo->iContinue;
-  }
-  pInner = &pWInfo->a[pWInfo->nLevel-1];
-  assert( pInner->addrNxt!=0 );
-  return pInner->addrNxt;
-}
-
-/*
-** Return the VDBE address or label to jump to in order to continue
-** immediately with the next row of a WHERE clause.
-*/
-SQLITE_PRIVATE int tdsqlite3WhereContinueLabel(WhereInfo *pWInfo){
-  assert( pWInfo->iContinue!=0 );
-  return pWInfo->iContinue;
-}
-
-/*
-** Return the VDBE address or label to jump to in order to break
-** out of a WHERE loop.
-*/
-SQLITE_PRIVATE int tdsqlite3WhereBreakLabel(WhereInfo *pWInfo){
-  return pWInfo->iBreak;
-}
-
-/*
-** Return ONEPASS_OFF (0) if an UPDATE or DELETE statement is unable to
-** operate directly on the rowids returned by a WHERE clause.  Return
-** ONEPASS_SINGLE (1) if the statement can operation directly because only
-** a single row is to be changed.  Return ONEPASS_MULTI (2) if the one-pass
-** optimization can be used on multiple 
-**
-** If the ONEPASS optimization is used (if this routine returns true)
-** then also write the indices of open cursors used by ONEPASS
-** into aiCur[0] and aiCur[1].  iaCur[0] gets the cursor of the data
-** table and iaCur[1] gets the cursor used by an auxiliary index.
-** Either value may be -1, indicating that cursor is not used.
-** Any cursors returned will have been opened for writing.
-**
-** aiCur[0] and aiCur[1] both get -1 if the where-clause logic is
-** unable to use the ONEPASS optimization.
-*/
-SQLITE_PRIVATE int tdsqlite3WhereOkOnePass(WhereInfo *pWInfo, int *aiCur){
-  memcpy(aiCur, pWInfo->aiCurOnePass, sizeof(int)*2);
-#ifdef WHERETRACE_ENABLED
-  if( tdsqlite3WhereTrace && pWInfo->eOnePass!=ONEPASS_OFF ){
-    tdsqlite3DebugPrintf("%s cursors: %d %d\n",
-         pWInfo->eOnePass==ONEPASS_SINGLE ? "ONEPASS_SINGLE" : "ONEPASS_MULTI",
-         aiCur[0], aiCur[1]);
-  }
-#endif
-  return pWInfo->eOnePass;
-}
-
-/*
-** Return TRUE if the WHERE loop uses the OP_DeferredSeek opcode to move
-** the data cursor to the row selected by the index cursor.
-*/
-SQLITE_PRIVATE int tdsqlite3WhereUsesDeferredSeek(WhereInfo *pWInfo){
-  return pWInfo->bDeferredSeek;
-}
-
-/*
-** Move the content of pSrc into pDest
-*/
-static void whereOrMove(WhereOrSet *pDest, WhereOrSet *pSrc){
-  pDest->n = pSrc->n;
-  memcpy(pDest->a, pSrc->a, pDest->n*sizeof(pDest->a[0]));
-}
-
-/*
-** Try to insert a new prerequisite/cost entry into the WhereOrSet pSet.
-**
-** The new entry might overwrite an existing entry, or it might be
-** appended, or it might be discarded.  Do whatever is the right thing
-** so that pSet keeps the N_OR_COST best entries seen so far.
-*/
-static int whereOrInsert(
-  WhereOrSet *pSet,      /* The WhereOrSet to be updated */
-  Bitmask prereq,        /* Prerequisites of the new entry */
-  LogEst rRun,           /* Run-cost of the new entry */
-  LogEst nOut            /* Number of outputs for the new entry */
-){
-  u16 i;
-  WhereOrCost *p;
-  for(i=pSet->n, p=pSet->a; i>0; i--, p++){
-    if( rRun<=p->rRun && (prereq & p->prereq)==prereq ){
-      goto whereOrInsert_done;
-    }
-    if( p->rRun<=rRun && (p->prereq & prereq)==p->prereq ){
-      return 0;
-    }
-  }
-  if( pSet->n<N_OR_COST ){
-    p = &pSet->a[pSet->n++];
-    p->nOut = nOut;
-  }else{
-    p = pSet->a;
-    for(i=1; i<pSet->n; i++){
-      if( p->rRun>pSet->a[i].rRun ) p = pSet->a + i;
-    }
-    if( p->rRun<=rRun ) return 0;
-  }
-whereOrInsert_done:
-  p->prereq = prereq;
-  p->rRun = rRun;
-  if( p->nOut>nOut ) p->nOut = nOut;
-  return 1;
-}
-
-/*
-** Return the bitmask for the given cursor number.  Return 0 if
-** iCursor is not in the set.
-*/
-SQLITE_PRIVATE Bitmask tdsqlite3WhereGetMask(WhereMaskSet *pMaskSet, int iCursor){
-  int i;
-  assert( pMaskSet->n<=(int)sizeof(Bitmask)*8 );
-  for(i=0; i<pMaskSet->n; i++){
-    if( pMaskSet->ix[i]==iCursor ){
-      return MASKBIT(i);
-    }
-  }
-  return 0;
-}
-
-/*
-** Create a new mask for cursor iCursor.
-**
-** There is one cursor per table in the FROM clause.  The number of
-** tables in the FROM clause is limited by a test early in the
-** tdsqlite3WhereBegin() routine.  So we know that the pMaskSet->ix[]
-** array will never overflow.
-*/
-static void createMask(WhereMaskSet *pMaskSet, int iCursor){
-  assert( pMaskSet->n < ArraySize(pMaskSet->ix) );
-  pMaskSet->ix[pMaskSet->n++] = iCursor;
-}
-
-/*
-** Advance to the next WhereTerm that matches according to the criteria
-** established when the pScan object was initialized by whereScanInit().
-** Return NULL if there are no more matching WhereTerms.
-*/
-static WhereTerm *whereScanNext(WhereScan *pScan){
-  int iCur;            /* The cursor on the LHS of the term */
-  i16 iColumn;         /* The column on the LHS of the term.  -1 for IPK */
-  Expr *pX;            /* An expression being tested */
-  WhereClause *pWC;    /* Shorthand for pScan->pWC */
-  WhereTerm *pTerm;    /* The term being tested */
-  int k = pScan->k;    /* Where to start scanning */
-
-  assert( pScan->iEquiv<=pScan->nEquiv );
-  pWC = pScan->pWC;
-  while(1){
-    iColumn = pScan->aiColumn[pScan->iEquiv-1];
-    iCur = pScan->aiCur[pScan->iEquiv-1];
-    assert( pWC!=0 );
-    do{
-      for(pTerm=pWC->a+k; k<pWC->nTerm; k++, pTerm++){
-        if( pTerm->leftCursor==iCur
-         && pTerm->u.leftColumn==iColumn
-         && (iColumn!=XN_EXPR
-             || tdsqlite3ExprCompareSkip(pTerm->pExpr->pLeft,
-                                       pScan->pIdxExpr,iCur)==0)
-         && (pScan->iEquiv<=1 || !ExprHasProperty(pTerm->pExpr, EP_FromJoin))
-        ){
-          if( (pTerm->eOperator & WO_EQUIV)!=0
-           && pScan->nEquiv<ArraySize(pScan->aiCur)
-           && (pX = tdsqlite3ExprSkipCollateAndLikely(pTerm->pExpr->pRight))->op
-               ==TK_COLUMN
-          ){
-            int j;
-            for(j=0; j<pScan->nEquiv; j++){
-              if( pScan->aiCur[j]==pX->iTable
-               && pScan->aiColumn[j]==pX->iColumn ){
-                  break;
-              }
-            }
-            if( j==pScan->nEquiv ){
-              pScan->aiCur[j] = pX->iTable;
-              pScan->aiColumn[j] = pX->iColumn;
-              pScan->nEquiv++;
-            }
-          }
-          if( (pTerm->eOperator & pScan->opMask)!=0 ){
-            /* Verify the affinity and collating sequence match */
-            if( pScan->zCollName && (pTerm->eOperator & WO_ISNULL)==0 ){
-              CollSeq *pColl;
-              Parse *pParse = pWC->pWInfo->pParse;
-              pX = pTerm->pExpr;
-              if( !tdsqlite3IndexAffinityOk(pX, pScan->idxaff) ){
-                continue;
-              }
-              assert(pX->pLeft);
-              pColl = tdsqlite3ExprCompareCollSeq(pParse, pX);
-              if( pColl==0 ) pColl = pParse->db->pDfltColl;
-              if( tdsqlite3StrICmp(pColl->zName, pScan->zCollName) ){
-                continue;
-              }
-            }
-            if( (pTerm->eOperator & (WO_EQ|WO_IS))!=0
-             && (pX = pTerm->pExpr->pRight)->op==TK_COLUMN
-             && pX->iTable==pScan->aiCur[0]
-             && pX->iColumn==pScan->aiColumn[0]
-            ){
-              testcase( pTerm->eOperator & WO_IS );
-              continue;
-            }
-            pScan->pWC = pWC;
-            pScan->k = k+1;
-            return pTerm;
-          }
-        }
-      }
-      pWC = pWC->pOuter;
-      k = 0;
-    }while( pWC!=0 );
-    if( pScan->iEquiv>=pScan->nEquiv ) break;
-    pWC = pScan->pOrigWC;
-    k = 0;
-    pScan->iEquiv++;
-  }
-  return 0;
-}
-
-/*
-** This is whereScanInit() for the case of an index on an expression.
-** It is factored out into a separate tail-recursion subroutine so that
-** the normal whereScanInit() routine, which is a high-runner, does not
-** need to push registers onto the stack as part of its prologue.
-*/
-static SQLITE_NOINLINE WhereTerm *whereScanInitIndexExpr(WhereScan *pScan){
-  pScan->idxaff = tdsqlite3ExprAffinity(pScan->pIdxExpr);
-  return whereScanNext(pScan);
-}
-
-/*
-** Initialize a WHERE clause scanner object.  Return a pointer to the
-** first match.  Return NULL if there are no matches.
-**
-** The scanner will be searching the WHERE clause pWC.  It will look
-** for terms of the form "X <op> <expr>" where X is column iColumn of table
-** iCur.   Or if pIdx!=0 then X is column iColumn of index pIdx.  pIdx
-** must be one of the indexes of table iCur.
-**
-** The <op> must be one of the operators described by opMask.
-**
-** If the search is for X and the WHERE clause contains terms of the
-** form X=Y then this routine might also return terms of the form
-** "Y <op> <expr>".  The number of levels of transitivity is limited,
-** but is enough to handle most commonly occurring SQL statements.
-**
-** If X is not the INTEGER PRIMARY KEY then X must be compatible with
-** index pIdx.
-*/
-static WhereTerm *whereScanInit(
-  WhereScan *pScan,       /* The WhereScan object being initialized */
-  WhereClause *pWC,       /* The WHERE clause to be scanned */
-  int iCur,               /* Cursor to scan for */
-  int iColumn,            /* Column to scan for */
-  u32 opMask,             /* Operator(s) to scan for */
-  Index *pIdx             /* Must be compatible with this index */
-){
-  pScan->pOrigWC = pWC;
-  pScan->pWC = pWC;
-  pScan->pIdxExpr = 0;
-  pScan->idxaff = 0;
-  pScan->zCollName = 0;
-  pScan->opMask = opMask;
-  pScan->k = 0;
-  pScan->aiCur[0] = iCur;
-  pScan->nEquiv = 1;
-  pScan->iEquiv = 1;
-  if( pIdx ){
-    int j = iColumn;
-    iColumn = pIdx->aiColumn[j];
-    if( iColumn==XN_EXPR ){
-      pScan->pIdxExpr = pIdx->aColExpr->a[j].pExpr;
-      pScan->zCollName = pIdx->azColl[j];
-      pScan->aiColumn[0] = XN_EXPR;
-      return whereScanInitIndexExpr(pScan);
-    }else if( iColumn==pIdx->pTable->iPKey ){
-      iColumn = XN_ROWID;
-    }else if( iColumn>=0 ){
-      pScan->idxaff = pIdx->pTable->aCol[iColumn].affinity;
-      pScan->zCollName = pIdx->azColl[j];
-    }
-  }else if( iColumn==XN_EXPR ){
-    return 0;
-  }
-  pScan->aiColumn[0] = iColumn;
-  return whereScanNext(pScan);
-}
-
-/*
-** Search for a term in the WHERE clause that is of the form "X <op> <expr>"
-** where X is a reference to the iColumn of table iCur or of index pIdx
-** if pIdx!=0 and <op> is one of the WO_xx operator codes specified by
-** the op parameter.  Return a pointer to the term.  Return 0 if not found.
-**
-** If pIdx!=0 then it must be one of the indexes of table iCur.  
-** Search for terms matching the iColumn-th column of pIdx
-** rather than the iColumn-th column of table iCur.
-**
-** The term returned might by Y=<expr> if there is another constraint in
-** the WHERE clause that specifies that X=Y.  Any such constraints will be
-** identified by the WO_EQUIV bit in the pTerm->eOperator field.  The
-** aiCur[]/iaColumn[] arrays hold X and all its equivalents. There are 11
-** slots in aiCur[]/aiColumn[] so that means we can look for X plus up to 10
-** other equivalent values.  Hence a search for X will return <expr> if X=A1
-** and A1=A2 and A2=A3 and ... and A9=A10 and A10=<expr>.
-**
-** If there are multiple terms in the WHERE clause of the form "X <op> <expr>"
-** then try for the one with no dependencies on <expr> - in other words where
-** <expr> is a constant expression of some kind.  Only return entries of
-** the form "X <op> Y" where Y is a column in another table if no terms of
-** the form "X <op> <const-expr>" exist.   If no terms with a constant RHS
-** exist, try to return a term that does not use WO_EQUIV.
-*/
-SQLITE_PRIVATE WhereTerm *tdsqlite3WhereFindTerm(
-  WhereClause *pWC,     /* The WHERE clause to be searched */
-  int iCur,             /* Cursor number of LHS */
-  int iColumn,          /* Column number of LHS */
-  Bitmask notReady,     /* RHS must not overlap with this mask */
-  u32 op,               /* Mask of WO_xx values describing operator */
-  Index *pIdx           /* Must be compatible with this index, if not NULL */
-){
-  WhereTerm *pResult = 0;
-  WhereTerm *p;
-  WhereScan scan;
-
-  p = whereScanInit(&scan, pWC, iCur, iColumn, op, pIdx);
-  op &= WO_EQ|WO_IS;
-  while( p ){
-    if( (p->prereqRight & notReady)==0 ){
-      if( p->prereqRight==0 && (p->eOperator&op)!=0 ){
-        testcase( p->eOperator & WO_IS );
-        return p;
-      }
-      if( pResult==0 ) pResult = p;
-    }
-    p = whereScanNext(&scan);
-  }
-  return pResult;
-}
-
-/*
-** This function searches pList for an entry that matches the iCol-th column
-** of index pIdx.
-**
-** If such an expression is found, its index in pList->a[] is returned. If
-** no expression is found, -1 is returned.
-*/
-static int findIndexCol(
-  Parse *pParse,                  /* Parse context */
-  ExprList *pList,                /* Expression list to search */
-  int iBase,                      /* Cursor for table associated with pIdx */
-  Index *pIdx,                    /* Index to match column of */
-  int iCol                        /* Column of index to match */
-){
-  int i;
-  const char *zColl = pIdx->azColl[iCol];
-
-  for(i=0; i<pList->nExpr; i++){
-    Expr *p = tdsqlite3ExprSkipCollateAndLikely(pList->a[i].pExpr);
-    if( p->op==TK_COLUMN
-     && p->iColumn==pIdx->aiColumn[iCol]
-     && p->iTable==iBase
-    ){
-      CollSeq *pColl = tdsqlite3ExprNNCollSeq(pParse, pList->a[i].pExpr);
-      if( 0==tdsqlite3StrICmp(pColl->zName, zColl) ){
-        return i;
-      }
-    }
-  }
-
-  return -1;
-}
-
-/*
-** Return TRUE if the iCol-th column of index pIdx is NOT NULL
-*/
-static int indexColumnNotNull(Index *pIdx, int iCol){
-  int j;
-  assert( pIdx!=0 );
-  assert( iCol>=0 && iCol<pIdx->nColumn );
-  j = pIdx->aiColumn[iCol];
-  if( j>=0 ){
-    return pIdx->pTable->aCol[j].notNull;
-  }else if( j==(-1) ){
-    return 1;
-  }else{
-    assert( j==(-2) );
-    return 0;  /* Assume an indexed expression can always yield a NULL */
-
-  }
-}
-
-/*
-** Return true if the DISTINCT expression-list passed as the third argument
-** is redundant.
-**
-** A DISTINCT list is redundant if any subset of the columns in the
-** DISTINCT list are collectively unique and individually non-null.
-*/
-static int isDistinctRedundant(
-  Parse *pParse,            /* Parsing context */
-  SrcList *pTabList,        /* The FROM clause */
-  WhereClause *pWC,         /* The WHERE clause */
-  ExprList *pDistinct       /* The result set that needs to be DISTINCT */
-){
-  Table *pTab;
-  Index *pIdx;
-  int i;                          
-  int iBase;
-
-  /* If there is more than one table or sub-select in the FROM clause of
-  ** this query, then it will not be possible to show that the DISTINCT 
-  ** clause is redundant. */
-  if( pTabList->nSrc!=1 ) return 0;
-  iBase = pTabList->a[0].iCursor;
-  pTab = pTabList->a[0].pTab;
-
-  /* If any of the expressions is an IPK column on table iBase, then return 
-  ** true. Note: The (p->iTable==iBase) part of this test may be false if the
-  ** current SELECT is a correlated sub-query.
-  */
-  for(i=0; i<pDistinct->nExpr; i++){
-    Expr *p = tdsqlite3ExprSkipCollateAndLikely(pDistinct->a[i].pExpr);
-    if( p->op==TK_COLUMN && p->iTable==iBase && p->iColumn<0 ) return 1;
-  }
-
-  /* Loop through all indices on the table, checking each to see if it makes
-  ** the DISTINCT qualifier redundant. It does so if:
-  **
-  **   1. The index is itself UNIQUE, and
-  **
-  **   2. All of the columns in the index are either part of the pDistinct
-  **      list, or else the WHERE clause contains a term of the form "col=X",
-  **      where X is a constant value. The collation sequences of the
-  **      comparison and select-list expressions must match those of the index.
-  **
-  **   3. All of those index columns for which the WHERE clause does not
-  **      contain a "col=X" term are subject to a NOT NULL constraint.
-  */
-  for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-    if( !IsUniqueIndex(pIdx) ) continue;
-    for(i=0; i<pIdx->nKeyCol; i++){
-      if( 0==tdsqlite3WhereFindTerm(pWC, iBase, i, ~(Bitmask)0, WO_EQ, pIdx) ){
-        if( findIndexCol(pParse, pDistinct, iBase, pIdx, i)<0 ) break;
-        if( indexColumnNotNull(pIdx, i)==0 ) break;
-      }
-    }
-    if( i==pIdx->nKeyCol ){
-      /* This index implies that the DISTINCT qualifier is redundant. */
-      return 1;
-    }
-  }
-
-  return 0;
-}
-
-
-/*
-** Estimate the logarithm of the input value to base 2.
-*/
-static LogEst estLog(LogEst N){
-  return N<=10 ? 0 : tdsqlite3LogEst(N) - 33;
-}
-
-/*
-** Convert OP_Column opcodes to OP_Copy in previously generated code.
-**
-** This routine runs over generated VDBE code and translates OP_Column
-** opcodes into OP_Copy when the table is being accessed via co-routine 
-** instead of via table lookup.
-**
-** If the iAutoidxCur is not zero, then any OP_Rowid instructions on
-** cursor iTabCur are transformed into OP_Sequence opcode for the
-** iAutoidxCur cursor, in order to generate unique rowids for the
-** automatic index being generated.
-*/
-static void translateColumnToCopy(
-  Parse *pParse,      /* Parsing context */
-  int iStart,         /* Translate from this opcode to the end */
-  int iTabCur,        /* OP_Column/OP_Rowid references to this table */
-  int iRegister,      /* The first column is in this register */
-  int iAutoidxCur     /* If non-zero, cursor of autoindex being generated */
-){
-  Vdbe *v = pParse->pVdbe;
-  VdbeOp *pOp = tdsqlite3VdbeGetOp(v, iStart);
-  int iEnd = tdsqlite3VdbeCurrentAddr(v);
-  if( pParse->db->mallocFailed ) return;
-  for(; iStart<iEnd; iStart++, pOp++){
-    if( pOp->p1!=iTabCur ) continue;
-    if( pOp->opcode==OP_Column ){
-      pOp->opcode = OP_Copy;
-      pOp->p1 = pOp->p2 + iRegister;
-      pOp->p2 = pOp->p3;
-      pOp->p3 = 0;
-    }else if( pOp->opcode==OP_Rowid ){
-      if( iAutoidxCur ){
-        pOp->opcode = OP_Sequence;
-        pOp->p1 = iAutoidxCur;
-      }else{
-        pOp->opcode = OP_Null;
-        pOp->p1 = 0;
-        pOp->p3 = 0;
-      }
-    }
-  }
-}
-
-/*
-** Two routines for printing the content of an tdsqlite3_index_info
-** structure.  Used for testing and debugging only.  If neither
-** SQLITE_TEST or SQLITE_DEBUG are defined, then these routines
-** are no-ops.
-*/
-#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(WHERETRACE_ENABLED)
-static void whereTraceIndexInfoInputs(tdsqlite3_index_info *p){
-  int i;
-  if( !tdsqlite3WhereTrace ) return;
-  for(i=0; i<p->nConstraint; i++){
-    tdsqlite3DebugPrintf("  constraint[%d]: col=%d termid=%d op=%d usabled=%d\n",
-       i,
-       p->aConstraint[i].iColumn,
-       p->aConstraint[i].iTermOffset,
-       p->aConstraint[i].op,
-       p->aConstraint[i].usable);
-  }
-  for(i=0; i<p->nOrderBy; i++){
-    tdsqlite3DebugPrintf("  orderby[%d]: col=%d desc=%d\n",
-       i,
-       p->aOrderBy[i].iColumn,
-       p->aOrderBy[i].desc);
-  }
-}
-static void whereTraceIndexInfoOutputs(tdsqlite3_index_info *p){
-  int i;
-  if( !tdsqlite3WhereTrace ) return;
-  for(i=0; i<p->nConstraint; i++){
-    tdsqlite3DebugPrintf("  usage[%d]: argvIdx=%d omit=%d\n",
-       i,
-       p->aConstraintUsage[i].argvIndex,
-       p->aConstraintUsage[i].omit);
-  }
-  tdsqlite3DebugPrintf("  idxNum=%d\n", p->idxNum);
-  tdsqlite3DebugPrintf("  idxStr=%s\n", p->idxStr);
-  tdsqlite3DebugPrintf("  orderByConsumed=%d\n", p->orderByConsumed);
-  tdsqlite3DebugPrintf("  estimatedCost=%g\n", p->estimatedCost);
-  tdsqlite3DebugPrintf("  estimatedRows=%lld\n", p->estimatedRows);
-}
-#else
-#define whereTraceIndexInfoInputs(A)
-#define whereTraceIndexInfoOutputs(A)
-#endif
-
-#ifndef SQLITE_OMIT_AUTOMATIC_INDEX
-/*
-** Return TRUE if the WHERE clause term pTerm is of a form where it
-** could be used with an index to access pSrc, assuming an appropriate
-** index existed.
-*/
-static int termCanDriveIndex(
-  WhereTerm *pTerm,              /* WHERE clause term to check */
-  struct SrcList_item *pSrc,     /* Table we are trying to access */
-  Bitmask notReady               /* Tables in outer loops of the join */
-){
-  char aff;
-  if( pTerm->leftCursor!=pSrc->iCursor ) return 0;
-  if( (pTerm->eOperator & (WO_EQ|WO_IS))==0 ) return 0;
-  if( (pSrc->fg.jointype & JT_LEFT) 
-   && !ExprHasProperty(pTerm->pExpr, EP_FromJoin)
-   && (pTerm->eOperator & WO_IS)
-  ){
-    /* Cannot use an IS term from the WHERE clause as an index driver for
-    ** the RHS of a LEFT JOIN. Such a term can only be used if it is from
-    ** the ON clause.  */
-    return 0;
-  }
-  if( (pTerm->prereqRight & notReady)!=0 ) return 0;
-  if( pTerm->u.leftColumn<0 ) return 0;
-  aff = pSrc->pTab->aCol[pTerm->u.leftColumn].affinity;
-  if( !tdsqlite3IndexAffinityOk(pTerm->pExpr, aff) ) return 0;
-  testcase( pTerm->pExpr->op==TK_IS );
-  return 1;
-}
-#endif
-
-
-#ifndef SQLITE_OMIT_AUTOMATIC_INDEX
-/*
-** Generate code to construct the Index object for an automatic index
-** and to set up the WhereLevel object pLevel so that the code generator
-** makes use of the automatic index.
-*/
-static void constructAutomaticIndex(
-  Parse *pParse,              /* The parsing context */
-  WhereClause *pWC,           /* The WHERE clause */
-  struct SrcList_item *pSrc,  /* The FROM clause term to get the next index */
-  Bitmask notReady,           /* Mask of cursors that are not available */
-  WhereLevel *pLevel          /* Write new index here */
-){
-  int nKeyCol;                /* Number of columns in the constructed index */
-  WhereTerm *pTerm;           /* A single term of the WHERE clause */
-  WhereTerm *pWCEnd;          /* End of pWC->a[] */
-  Index *pIdx;                /* Object describing the transient index */
-  Vdbe *v;                    /* Prepared statement under construction */
-  int addrInit;               /* Address of the initialization bypass jump */
-  Table *pTable;              /* The table being indexed */
-  int addrTop;                /* Top of the index fill loop */
-  int regRecord;              /* Register holding an index record */
-  int n;                      /* Column counter */
-  int i;                      /* Loop counter */
-  int mxBitCol;               /* Maximum column in pSrc->colUsed */
-  CollSeq *pColl;             /* Collating sequence to on a column */
-  WhereLoop *pLoop;           /* The Loop object */
-  char *zNotUsed;             /* Extra space on the end of pIdx */
-  Bitmask idxCols;            /* Bitmap of columns used for indexing */
-  Bitmask extraCols;          /* Bitmap of additional columns */
-  u8 sentWarning = 0;         /* True if a warnning has been issued */
-  Expr *pPartial = 0;         /* Partial Index Expression */
-  int iContinue = 0;          /* Jump here to skip excluded rows */
-  struct SrcList_item *pTabItem;  /* FROM clause term being indexed */
-  int addrCounter = 0;        /* Address where integer counter is initialized */
-  int regBase;                /* Array of registers where record is assembled */
-
-  /* Generate code to skip over the creation and initialization of the
-  ** transient index on 2nd and subsequent iterations of the loop. */
-  v = pParse->pVdbe;
-  assert( v!=0 );
-  addrInit = tdsqlite3VdbeAddOp0(v, OP_Once); VdbeCoverage(v);
-
-  /* Count the number of columns that will be added to the index
-  ** and used to match WHERE clause constraints */
-  nKeyCol = 0;
-  pTable = pSrc->pTab;
-  pWCEnd = &pWC->a[pWC->nTerm];
-  pLoop = pLevel->pWLoop;
-  idxCols = 0;
-  for(pTerm=pWC->a; pTerm<pWCEnd; pTerm++){
-    Expr *pExpr = pTerm->pExpr;
-    assert( !ExprHasProperty(pExpr, EP_FromJoin)    /* prereq always non-zero */
-         || pExpr->iRightJoinTable!=pSrc->iCursor   /*   for the right-hand   */
-         || pLoop->prereq!=0 );                     /*   table of a LEFT JOIN */
-    if( pLoop->prereq==0
-     && (pTerm->wtFlags & TERM_VIRTUAL)==0
-     && !ExprHasProperty(pExpr, EP_FromJoin)
-     && tdsqlite3ExprIsTableConstant(pExpr, pSrc->iCursor) ){
-      pPartial = tdsqlite3ExprAnd(pParse, pPartial,
-                                tdsqlite3ExprDup(pParse->db, pExpr, 0));
-    }
-    if( termCanDriveIndex(pTerm, pSrc, notReady) ){
-      int iCol = pTerm->u.leftColumn;
-      Bitmask cMask = iCol>=BMS ? MASKBIT(BMS-1) : MASKBIT(iCol);
-      testcase( iCol==BMS );
-      testcase( iCol==BMS-1 );
-      if( !sentWarning ){
-        tdsqlite3_log(SQLITE_WARNING_AUTOINDEX,
-            "automatic index on %s(%s)", pTable->zName,
-            pTable->aCol[iCol].zName);
-        sentWarning = 1;
-      }
-      if( (idxCols & cMask)==0 ){
-        if( whereLoopResize(pParse->db, pLoop, nKeyCol+1) ){
-          goto end_auto_index_create;
-        }
-        pLoop->aLTerm[nKeyCol++] = pTerm;
-        idxCols |= cMask;
-      }
-    }
-  }
-  assert( nKeyCol>0 );
-  pLoop->u.btree.nEq = pLoop->nLTerm = nKeyCol;
-  pLoop->wsFlags = WHERE_COLUMN_EQ | WHERE_IDX_ONLY | WHERE_INDEXED
-                     | WHERE_AUTO_INDEX;
-
-  /* Count the number of additional columns needed to create a
-  ** covering index.  A "covering index" is an index that contains all
-  ** columns that are needed by the query.  With a covering index, the
-  ** original table never needs to be accessed.  Automatic indices must
-  ** be a covering index because the index will not be updated if the
-  ** original table changes and the index and table cannot both be used
-  ** if they go out of sync.
-  */
-  extraCols = pSrc->colUsed & (~idxCols | MASKBIT(BMS-1));
-  mxBitCol = MIN(BMS-1,pTable->nCol);
-  testcase( pTable->nCol==BMS-1 );
-  testcase( pTable->nCol==BMS-2 );
-  for(i=0; i<mxBitCol; i++){
-    if( extraCols & MASKBIT(i) ) nKeyCol++;
-  }
-  if( pSrc->colUsed & MASKBIT(BMS-1) ){
-    nKeyCol += pTable->nCol - BMS + 1;
-  }
-
-  /* Construct the Index object to describe this index */
-  pIdx = tdsqlite3AllocateIndexObject(pParse->db, nKeyCol+1, 0, &zNotUsed);
-  if( pIdx==0 ) goto end_auto_index_create;
-  pLoop->u.btree.pIndex = pIdx;
-  pIdx->zName = "auto-index";
-  pIdx->pTable = pTable;
-  n = 0;
-  idxCols = 0;
-  for(pTerm=pWC->a; pTerm<pWCEnd; pTerm++){
-    if( termCanDriveIndex(pTerm, pSrc, notReady) ){
-      int iCol = pTerm->u.leftColumn;
-      Bitmask cMask = iCol>=BMS ? MASKBIT(BMS-1) : MASKBIT(iCol);
-      testcase( iCol==BMS-1 );
-      testcase( iCol==BMS );
-      if( (idxCols & cMask)==0 ){
-        Expr *pX = pTerm->pExpr;
-        idxCols |= cMask;
-        pIdx->aiColumn[n] = pTerm->u.leftColumn;
-        pColl = tdsqlite3ExprCompareCollSeq(pParse, pX);
-        assert( pColl!=0 || pParse->nErr>0 ); /* TH3 collate01.800 */
-        pIdx->azColl[n] = pColl ? pColl->zName : tdsqlite3StrBINARY;
-        n++;
-      }
-    }
-  }
-  assert( (u32)n==pLoop->u.btree.nEq );
-
-  /* Add additional columns needed to make the automatic index into
-  ** a covering index */
-  for(i=0; i<mxBitCol; i++){
-    if( extraCols & MASKBIT(i) ){
-      pIdx->aiColumn[n] = i;
-      pIdx->azColl[n] = tdsqlite3StrBINARY;
-      n++;
-    }
-  }
-  if( pSrc->colUsed & MASKBIT(BMS-1) ){
-    for(i=BMS-1; i<pTable->nCol; i++){
-      pIdx->aiColumn[n] = i;
-      pIdx->azColl[n] = tdsqlite3StrBINARY;
-      n++;
-    }
-  }
-  assert( n==nKeyCol );
-  pIdx->aiColumn[n] = XN_ROWID;
-  pIdx->azColl[n] = tdsqlite3StrBINARY;
-
-  /* Create the automatic index */
-  assert( pLevel->iIdxCur>=0 );
-  pLevel->iIdxCur = pParse->nTab++;
-  tdsqlite3VdbeAddOp2(v, OP_OpenAutoindex, pLevel->iIdxCur, nKeyCol+1);
-  tdsqlite3VdbeSetP4KeyInfo(pParse, pIdx);
-  VdbeComment((v, "for %s", pTable->zName));
-
-  /* Fill the automatic index with content */
-  pTabItem = &pWC->pWInfo->pTabList->a[pLevel->iFrom];
-  if( pTabItem->fg.viaCoroutine ){
-    int regYield = pTabItem->regReturn;
-    addrCounter = tdsqlite3VdbeAddOp2(v, OP_Integer, 0, 0);
-    tdsqlite3VdbeAddOp3(v, OP_InitCoroutine, regYield, 0, pTabItem->addrFillSub);
-    addrTop =  tdsqlite3VdbeAddOp1(v, OP_Yield, regYield);
-    VdbeCoverage(v);
-    VdbeComment((v, "next row of %s", pTabItem->pTab->zName));
-  }else{
-    addrTop = tdsqlite3VdbeAddOp1(v, OP_Rewind, pLevel->iTabCur); VdbeCoverage(v);
-  }
-  if( pPartial ){
-    iContinue = tdsqlite3VdbeMakeLabel(pParse);
-    tdsqlite3ExprIfFalse(pParse, pPartial, iContinue, SQLITE_JUMPIFNULL);
-    pLoop->wsFlags |= WHERE_PARTIALIDX;
-  }
-  regRecord = tdsqlite3GetTempReg(pParse);
-  regBase = tdsqlite3GenerateIndexKey(
-      pParse, pIdx, pLevel->iTabCur, regRecord, 0, 0, 0, 0
-  );
-  tdsqlite3VdbeAddOp2(v, OP_IdxInsert, pLevel->iIdxCur, regRecord);
-  tdsqlite3VdbeChangeP5(v, OPFLAG_USESEEKRESULT);
-  if( pPartial ) tdsqlite3VdbeResolveLabel(v, iContinue);
-  if( pTabItem->fg.viaCoroutine ){
-    tdsqlite3VdbeChangeP2(v, addrCounter, regBase+n);
-    testcase( pParse->db->mallocFailed );
-    assert( pLevel->iIdxCur>0 );
-    translateColumnToCopy(pParse, addrTop, pLevel->iTabCur,
-                          pTabItem->regResult, pLevel->iIdxCur);
-    tdsqlite3VdbeGoto(v, addrTop);
-    pTabItem->fg.viaCoroutine = 0;
-  }else{
-    tdsqlite3VdbeAddOp2(v, OP_Next, pLevel->iTabCur, addrTop+1); VdbeCoverage(v);
-    tdsqlite3VdbeChangeP5(v, SQLITE_STMTSTATUS_AUTOINDEX);
-  }
-  tdsqlite3VdbeJumpHere(v, addrTop);
-  tdsqlite3ReleaseTempReg(pParse, regRecord);
-  
-  /* Jump here when skipping the initialization */
-  tdsqlite3VdbeJumpHere(v, addrInit);
-
-end_auto_index_create:
-  tdsqlite3ExprDelete(pParse->db, pPartial);
-}
-#endif /* SQLITE_OMIT_AUTOMATIC_INDEX */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/*
-** Allocate and populate an tdsqlite3_index_info structure. It is the 
-** responsibility of the caller to eventually release the structure
-** by passing the pointer returned by this function to tdsqlite3_free().
-*/
-static tdsqlite3_index_info *allocateIndexInfo(
-  Parse *pParse,                  /* The parsing context */
-  WhereClause *pWC,               /* The WHERE clause being analyzed */
-  Bitmask mUnusable,              /* Ignore terms with these prereqs */
-  struct SrcList_item *pSrc,      /* The FROM clause term that is the vtab */
-  ExprList *pOrderBy,             /* The ORDER BY clause */
-  u16 *pmNoOmit                   /* Mask of terms not to omit */
-){
-  int i, j;
-  int nTerm;
-  struct tdsqlite3_index_constraint *pIdxCons;
-  struct tdsqlite3_index_orderby *pIdxOrderBy;
-  struct tdsqlite3_index_constraint_usage *pUsage;
-  struct HiddenIndexInfo *pHidden;
-  WhereTerm *pTerm;
-  int nOrderBy;
-  tdsqlite3_index_info *pIdxInfo;
-  u16 mNoOmit = 0;
-
-  /* Count the number of possible WHERE clause constraints referring
-  ** to this virtual table */
-  for(i=nTerm=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){
-    if( pTerm->leftCursor != pSrc->iCursor ) continue;
-    if( pTerm->prereqRight & mUnusable ) continue;
-    assert( IsPowerOfTwo(pTerm->eOperator & ~WO_EQUIV) );
-    testcase( pTerm->eOperator & WO_IN );
-    testcase( pTerm->eOperator & WO_ISNULL );
-    testcase( pTerm->eOperator & WO_IS );
-    testcase( pTerm->eOperator & WO_ALL );
-    if( (pTerm->eOperator & ~(WO_EQUIV))==0 ) continue;
-    if( pTerm->wtFlags & TERM_VNULL ) continue;
-    assert( pTerm->u.leftColumn>=(-1) );
-    nTerm++;
-  }
-
-  /* If the ORDER BY clause contains only columns in the current 
-  ** virtual table then allocate space for the aOrderBy part of
-  ** the tdsqlite3_index_info structure.
-  */
-  nOrderBy = 0;
-  if( pOrderBy ){
-    int n = pOrderBy->nExpr;
-    for(i=0; i<n; i++){
-      Expr *pExpr = pOrderBy->a[i].pExpr;
-      if( pExpr->op!=TK_COLUMN || pExpr->iTable!=pSrc->iCursor ) break;
-      if( pOrderBy->a[i].sortFlags & KEYINFO_ORDER_BIGNULL ) break;
-    }
-    if( i==n){
-      nOrderBy = n;
-    }
-  }
-
-  /* Allocate the tdsqlite3_index_info structure
-  */
-  pIdxInfo = tdsqlite3DbMallocZero(pParse->db, sizeof(*pIdxInfo)
-                           + (sizeof(*pIdxCons) + sizeof(*pUsage))*nTerm
-                           + sizeof(*pIdxOrderBy)*nOrderBy + sizeof(*pHidden) );
-  if( pIdxInfo==0 ){
-    tdsqlite3ErrorMsg(pParse, "out of memory");
-    return 0;
-  }
-  pHidden = (struct HiddenIndexInfo*)&pIdxInfo[1];
-  pIdxCons = (struct tdsqlite3_index_constraint*)&pHidden[1];
-  pIdxOrderBy = (struct tdsqlite3_index_orderby*)&pIdxCons[nTerm];
-  pUsage = (struct tdsqlite3_index_constraint_usage*)&pIdxOrderBy[nOrderBy];
-  pIdxInfo->nOrderBy = nOrderBy;
-  pIdxInfo->aConstraint = pIdxCons;
-  pIdxInfo->aOrderBy = pIdxOrderBy;
-  pIdxInfo->aConstraintUsage = pUsage;
-  pHidden->pWC = pWC;
-  pHidden->pParse = pParse;
-  for(i=j=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){
-    u16 op;
-    if( pTerm->leftCursor != pSrc->iCursor ) continue;
-    if( pTerm->prereqRight & mUnusable ) continue;
-    assert( IsPowerOfTwo(pTerm->eOperator & ~WO_EQUIV) );
-    testcase( pTerm->eOperator & WO_IN );
-    testcase( pTerm->eOperator & WO_IS );
-    testcase( pTerm->eOperator & WO_ISNULL );
-    testcase( pTerm->eOperator & WO_ALL );
-    if( (pTerm->eOperator & ~(WO_EQUIV))==0 ) continue;
-    if( pTerm->wtFlags & TERM_VNULL ) continue;
-
-    /* tag-20191211-002: WHERE-clause constraints are not useful to the
-    ** right-hand table of a LEFT JOIN.  See tag-20191211-001 for the
-    ** equivalent restriction for ordinary tables. */
-    if( (pSrc->fg.jointype & JT_LEFT)!=0
-     && !ExprHasProperty(pTerm->pExpr, EP_FromJoin)
-    ){
-      continue;
-    }
-    assert( pTerm->u.leftColumn>=(-1) );
-    pIdxCons[j].iColumn = pTerm->u.leftColumn;
-    pIdxCons[j].iTermOffset = i;
-    op = pTerm->eOperator & WO_ALL;
-    if( op==WO_IN ) op = WO_EQ;
-    if( op==WO_AUX ){
-      pIdxCons[j].op = pTerm->eMatchOp;
-    }else if( op & (WO_ISNULL|WO_IS) ){
-      if( op==WO_ISNULL ){
-        pIdxCons[j].op = SQLITE_INDEX_CONSTRAINT_ISNULL;
-      }else{
-        pIdxCons[j].op = SQLITE_INDEX_CONSTRAINT_IS;
-      }
-    }else{
-      pIdxCons[j].op = (u8)op;
-      /* The direct assignment in the previous line is possible only because
-      ** the WO_ and SQLITE_INDEX_CONSTRAINT_ codes are identical.  The
-      ** following asserts verify this fact. */
-      assert( WO_EQ==SQLITE_INDEX_CONSTRAINT_EQ );
-      assert( WO_LT==SQLITE_INDEX_CONSTRAINT_LT );
-      assert( WO_LE==SQLITE_INDEX_CONSTRAINT_LE );
-      assert( WO_GT==SQLITE_INDEX_CONSTRAINT_GT );
-      assert( WO_GE==SQLITE_INDEX_CONSTRAINT_GE );
-      assert( pTerm->eOperator&(WO_IN|WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE|WO_AUX) );
-
-      if( op & (WO_LT|WO_LE|WO_GT|WO_GE)
-       && tdsqlite3ExprIsVector(pTerm->pExpr->pRight) 
-      ){
-        testcase( j!=i );
-        if( j<16 ) mNoOmit |= (1 << j);
-        if( op==WO_LT ) pIdxCons[j].op = WO_LE;
-        if( op==WO_GT ) pIdxCons[j].op = WO_GE;
-      }
-    }
-
-    j++;
-  }
-  pIdxInfo->nConstraint = j;
-  for(i=0; i<nOrderBy; i++){
-    Expr *pExpr = pOrderBy->a[i].pExpr;
-    pIdxOrderBy[i].iColumn = pExpr->iColumn;
-    pIdxOrderBy[i].desc = pOrderBy->a[i].sortFlags & KEYINFO_ORDER_DESC;
-  }
-
-  *pmNoOmit = mNoOmit;
-  return pIdxInfo;
-}
-
-/*
-** The table object reference passed as the second argument to this function
-** must represent a virtual table. This function invokes the xBestIndex()
-** method of the virtual table with the tdsqlite3_index_info object that
-** comes in as the 3rd argument to this function.
-**
-** If an error occurs, pParse is populated with an error message and an
-** appropriate error code is returned.  A return of SQLITE_CONSTRAINT from
-** xBestIndex is not considered an error.  SQLITE_CONSTRAINT indicates that
-** the current configuration of "unusable" flags in tdsqlite3_index_info can
-** not result in a valid plan.
-**
-** Whether or not an error is returned, it is the responsibility of the
-** caller to eventually free p->idxStr if p->needToFreeIdxStr indicates
-** that this is required.
-*/
-static int vtabBestIndex(Parse *pParse, Table *pTab, tdsqlite3_index_info *p){
-  tdsqlite3_vtab *pVtab = tdsqlite3GetVTable(pParse->db, pTab)->pVtab;
-  int rc;
-
-  whereTraceIndexInfoInputs(p);
-  rc = pVtab->pModule->xBestIndex(pVtab, p);
-  whereTraceIndexInfoOutputs(p);
-
-  if( rc!=SQLITE_OK && rc!=SQLITE_CONSTRAINT ){
-    if( rc==SQLITE_NOMEM ){
-      tdsqlite3OomFault(pParse->db);
-    }else if( !pVtab->zErrMsg ){
-      tdsqlite3ErrorMsg(pParse, "%s", tdsqlite3ErrStr(rc));
-    }else{
-      tdsqlite3ErrorMsg(pParse, "%s", pVtab->zErrMsg);
-    }
-  }
-  tdsqlite3_free(pVtab->zErrMsg);
-  pVtab->zErrMsg = 0;
-  return rc;
-}
-#endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) */
-
-#ifdef SQLITE_ENABLE_STAT4
-/*
-** Estimate the location of a particular key among all keys in an
-** index.  Store the results in aStat as follows:
-**
-**    aStat[0]      Est. number of rows less than pRec
-**    aStat[1]      Est. number of rows equal to pRec
-**
-** Return the index of the sample that is the smallest sample that
-** is greater than or equal to pRec. Note that this index is not an index
-** into the aSample[] array - it is an index into a virtual set of samples
-** based on the contents of aSample[] and the number of fields in record 
-** pRec. 
-*/
-static int whereKeyStats(
-  Parse *pParse,              /* Database connection */
-  Index *pIdx,                /* Index to consider domain of */
-  UnpackedRecord *pRec,       /* Vector of values to consider */
-  int roundUp,                /* Round up if true.  Round down if false */
-  tRowcnt *aStat              /* OUT: stats written here */
-){
-  IndexSample *aSample = pIdx->aSample;
-  int iCol;                   /* Index of required stats in anEq[] etc. */
-  int i;                      /* Index of first sample >= pRec */
-  int iSample;                /* Smallest sample larger than or equal to pRec */
-  int iMin = 0;               /* Smallest sample not yet tested */
-  int iTest;                  /* Next sample to test */
-  int res;                    /* Result of comparison operation */
-  int nField;                 /* Number of fields in pRec */
-  tRowcnt iLower = 0;         /* anLt[] + anEq[] of largest sample pRec is > */
-
-#ifndef SQLITE_DEBUG
-  UNUSED_PARAMETER( pParse );
-#endif
-  assert( pRec!=0 );
-  assert( pIdx->nSample>0 );
-  assert( pRec->nField>0 && pRec->nField<=pIdx->nSampleCol );
-
-  /* Do a binary search to find the first sample greater than or equal
-  ** to pRec. If pRec contains a single field, the set of samples to search
-  ** is simply the aSample[] array. If the samples in aSample[] contain more
-  ** than one fields, all fields following the first are ignored.
-  **
-  ** If pRec contains N fields, where N is more than one, then as well as the
-  ** samples in aSample[] (truncated to N fields), the search also has to
-  ** consider prefixes of those samples. For example, if the set of samples
-  ** in aSample is:
-  **
-  **     aSample[0] = (a, 5) 
-  **     aSample[1] = (a, 10) 
-  **     aSample[2] = (b, 5) 
-  **     aSample[3] = (c, 100) 
-  **     aSample[4] = (c, 105)
-  **
-  ** Then the search space should ideally be the samples above and the 
-  ** unique prefixes [a], [b] and [c]. But since that is hard to organize, 
-  ** the code actually searches this set:
-  **
-  **     0: (a) 
-  **     1: (a, 5) 
-  **     2: (a, 10) 
-  **     3: (a, 10) 
-  **     4: (b) 
-  **     5: (b, 5) 
-  **     6: (c) 
-  **     7: (c, 100) 
-  **     8: (c, 105)
-  **     9: (c, 105)
-  **
-  ** For each sample in the aSample[] array, N samples are present in the
-  ** effective sample array. In the above, samples 0 and 1 are based on 
-  ** sample aSample[0]. Samples 2 and 3 on aSample[1] etc.
-  **
-  ** Often, sample i of each block of N effective samples has (i+1) fields.
-  ** Except, each sample may be extended to ensure that it is greater than or
-  ** equal to the previous sample in the array. For example, in the above, 
-  ** sample 2 is the first sample of a block of N samples, so at first it 
-  ** appears that it should be 1 field in size. However, that would make it 
-  ** smaller than sample 1, so the binary search would not work. As a result, 
-  ** it is extended to two fields. The duplicates that this creates do not 
-  ** cause any problems.
-  */
-  nField = pRec->nField;
-  iCol = 0;
-  iSample = pIdx->nSample * nField;
-  do{
-    int iSamp;                    /* Index in aSample[] of test sample */
-    int n;                        /* Number of fields in test sample */
-
-    iTest = (iMin+iSample)/2;
-    iSamp = iTest / nField;
-    if( iSamp>0 ){
-      /* The proposed effective sample is a prefix of sample aSample[iSamp].
-      ** Specifically, the shortest prefix of at least (1 + iTest%nField) 
-      ** fields that is greater than the previous effective sample.  */
-      for(n=(iTest % nField) + 1; n<nField; n++){
-        if( aSample[iSamp-1].anLt[n-1]!=aSample[iSamp].anLt[n-1] ) break;
-      }
-    }else{
-      n = iTest + 1;
-    }
-
-    pRec->nField = n;
-    res = tdsqlite3VdbeRecordCompare(aSample[iSamp].n, aSample[iSamp].p, pRec);
-    if( res<0 ){
-      iLower = aSample[iSamp].anLt[n-1] + aSample[iSamp].anEq[n-1];
-      iMin = iTest+1;
-    }else if( res==0 && n<nField ){
-      iLower = aSample[iSamp].anLt[n-1];
-      iMin = iTest+1;
-      res = -1;
-    }else{
-      iSample = iTest;
-      iCol = n-1;
-    }
-  }while( res && iMin<iSample );
-  i = iSample / nField;
-
-#ifdef SQLITE_DEBUG
-  /* The following assert statements check that the binary search code
-  ** above found the right answer. This block serves no purpose other
-  ** than to invoke the asserts.  */
-  if( pParse->db->mallocFailed==0 ){
-    if( res==0 ){
-      /* If (res==0) is true, then pRec must be equal to sample i. */
-      assert( i<pIdx->nSample );
-      assert( iCol==nField-1 );
-      pRec->nField = nField;
-      assert( 0==tdsqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec) 
-           || pParse->db->mallocFailed 
-      );
-    }else{
-      /* Unless i==pIdx->nSample, indicating that pRec is larger than
-      ** all samples in the aSample[] array, pRec must be smaller than the
-      ** (iCol+1) field prefix of sample i.  */
-      assert( i<=pIdx->nSample && i>=0 );
-      pRec->nField = iCol+1;
-      assert( i==pIdx->nSample 
-           || tdsqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)>0
-           || pParse->db->mallocFailed );
-
-      /* if i==0 and iCol==0, then record pRec is smaller than all samples
-      ** in the aSample[] array. Otherwise, if (iCol>0) then pRec must
-      ** be greater than or equal to the (iCol) field prefix of sample i.
-      ** If (i>0), then pRec must also be greater than sample (i-1).  */
-      if( iCol>0 ){
-        pRec->nField = iCol;
-        assert( tdsqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)<=0
-             || pParse->db->mallocFailed );
-      }
-      if( i>0 ){
-        pRec->nField = nField;
-        assert( tdsqlite3VdbeRecordCompare(aSample[i-1].n, aSample[i-1].p, pRec)<0
-             || pParse->db->mallocFailed );
-      }
-    }
-  }
-#endif /* ifdef SQLITE_DEBUG */
-
-  if( res==0 ){
-    /* Record pRec is equal to sample i */
-    assert( iCol==nField-1 );
-    aStat[0] = aSample[i].anLt[iCol];
-    aStat[1] = aSample[i].anEq[iCol];
-  }else{
-    /* At this point, the (iCol+1) field prefix of aSample[i] is the first 
-    ** sample that is greater than pRec. Or, if i==pIdx->nSample then pRec
-    ** is larger than all samples in the array. */
-    tRowcnt iUpper, iGap;
-    if( i>=pIdx->nSample ){
-      iUpper = tdsqlite3LogEstToInt(pIdx->aiRowLogEst[0]);
-    }else{
-      iUpper = aSample[i].anLt[iCol];
-    }
-
-    if( iLower>=iUpper ){
-      iGap = 0;
-    }else{
-      iGap = iUpper - iLower;
-    }
-    if( roundUp ){
-      iGap = (iGap*2)/3;
-    }else{
-      iGap = iGap/3;
-    }
-    aStat[0] = iLower + iGap;
-    aStat[1] = pIdx->aAvgEq[nField-1];
-  }
-
-  /* Restore the pRec->nField value before returning.  */
-  pRec->nField = nField;
-  return i;
-}
-#endif /* SQLITE_ENABLE_STAT4 */
-
-/*
-** If it is not NULL, pTerm is a term that provides an upper or lower
-** bound on a range scan. Without considering pTerm, it is estimated 
-** that the scan will visit nNew rows. This function returns the number
-** estimated to be visited after taking pTerm into account.
-**
-** If the user explicitly specified a likelihood() value for this term,
-** then the return value is the likelihood multiplied by the number of
-** input rows. Otherwise, this function assumes that an "IS NOT NULL" term
-** has a likelihood of 0.50, and any other term a likelihood of 0.25.
-*/
-static LogEst whereRangeAdjust(WhereTerm *pTerm, LogEst nNew){
-  LogEst nRet = nNew;
-  if( pTerm ){
-    if( pTerm->truthProb<=0 ){
-      nRet += pTerm->truthProb;
-    }else if( (pTerm->wtFlags & TERM_VNULL)==0 ){
-      nRet -= 20;        assert( 20==tdsqlite3LogEst(4) );
-    }
-  }
-  return nRet;
-}
-
-
-#ifdef SQLITE_ENABLE_STAT4
-/*
-** Return the affinity for a single column of an index.
-*/
-SQLITE_PRIVATE char tdsqlite3IndexColumnAffinity(tdsqlite3 *db, Index *pIdx, int iCol){
-  assert( iCol>=0 && iCol<pIdx->nColumn );
-  if( !pIdx->zColAff ){
-    if( tdsqlite3IndexAffinityStr(db, pIdx)==0 ) return SQLITE_AFF_BLOB;
-  }
-  assert( pIdx->zColAff[iCol]!=0 );
-  return pIdx->zColAff[iCol];
-}
-#endif
-
-
-#ifdef SQLITE_ENABLE_STAT4
-/* 
-** This function is called to estimate the number of rows visited by a
-** range-scan on a skip-scan index. For example:
-**
-**   CREATE INDEX i1 ON t1(a, b, c);
-**   SELECT * FROM t1 WHERE a=? AND c BETWEEN ? AND ?;
-**
-** Value pLoop->nOut is currently set to the estimated number of rows 
-** visited for scanning (a=? AND b=?). This function reduces that estimate 
-** by some factor to account for the (c BETWEEN ? AND ?) expression based
-** on the stat4 data for the index. this scan will be peformed multiple 
-** times (once for each (a,b) combination that matches a=?) is dealt with 
-** by the caller.
-**
-** It does this by scanning through all stat4 samples, comparing values
-** extracted from pLower and pUpper with the corresponding column in each
-** sample. If L and U are the number of samples found to be less than or
-** equal to the values extracted from pLower and pUpper respectively, and
-** N is the total number of samples, the pLoop->nOut value is adjusted
-** as follows:
-**
-**   nOut = nOut * ( min(U - L, 1) / N )
-**
-** If pLower is NULL, or a value cannot be extracted from the term, L is
-** set to zero. If pUpper is NULL, or a value cannot be extracted from it,
-** U is set to N.
-**
-** Normally, this function sets *pbDone to 1 before returning. However,
-** if no value can be extracted from either pLower or pUpper (and so the
-** estimate of the number of rows delivered remains unchanged), *pbDone
-** is left as is.
-**
-** If an error occurs, an SQLite error code is returned. Otherwise, 
-** SQLITE_OK.
-*/
-static int whereRangeSkipScanEst(
-  Parse *pParse,       /* Parsing & code generating context */
-  WhereTerm *pLower,   /* Lower bound on the range. ex: "x>123" Might be NULL */
-  WhereTerm *pUpper,   /* Upper bound on the range. ex: "x<455" Might be NULL */
-  WhereLoop *pLoop,    /* Update the .nOut value of this loop */
-  int *pbDone          /* Set to true if at least one expr. value extracted */
-){
-  Index *p = pLoop->u.btree.pIndex;
-  int nEq = pLoop->u.btree.nEq;
-  tdsqlite3 *db = pParse->db;
-  int nLower = -1;
-  int nUpper = p->nSample+1;
-  int rc = SQLITE_OK;
-  u8 aff = tdsqlite3IndexColumnAffinity(db, p, nEq);
-  CollSeq *pColl;
-  
-  tdsqlite3_value *p1 = 0;          /* Value extracted from pLower */
-  tdsqlite3_value *p2 = 0;          /* Value extracted from pUpper */
-  tdsqlite3_value *pVal = 0;        /* Value extracted from record */
-
-  pColl = tdsqlite3LocateCollSeq(pParse, p->azColl[nEq]);
-  if( pLower ){
-    rc = tdsqlite3Stat4ValueFromExpr(pParse, pLower->pExpr->pRight, aff, &p1);
-    nLower = 0;
-  }
-  if( pUpper && rc==SQLITE_OK ){
-    rc = tdsqlite3Stat4ValueFromExpr(pParse, pUpper->pExpr->pRight, aff, &p2);
-    nUpper = p2 ? 0 : p->nSample;
-  }
-
-  if( p1 || p2 ){
-    int i;
-    int nDiff;
-    for(i=0; rc==SQLITE_OK && i<p->nSample; i++){
-      rc = tdsqlite3Stat4Column(db, p->aSample[i].p, p->aSample[i].n, nEq, &pVal);
-      if( rc==SQLITE_OK && p1 ){
-        int res = tdsqlite3MemCompare(p1, pVal, pColl);
-        if( res>=0 ) nLower++;
-      }
-      if( rc==SQLITE_OK && p2 ){
-        int res = tdsqlite3MemCompare(p2, pVal, pColl);
-        if( res>=0 ) nUpper++;
-      }
-    }
-    nDiff = (nUpper - nLower);
-    if( nDiff<=0 ) nDiff = 1;
-
-    /* If there is both an upper and lower bound specified, and the 
-    ** comparisons indicate that they are close together, use the fallback
-    ** method (assume that the scan visits 1/64 of the rows) for estimating
-    ** the number of rows visited. Otherwise, estimate the number of rows
-    ** using the method described in the header comment for this function. */
-    if( nDiff!=1 || pUpper==0 || pLower==0 ){
-      int nAdjust = (tdsqlite3LogEst(p->nSample) - tdsqlite3LogEst(nDiff));
-      pLoop->nOut -= nAdjust;
-      *pbDone = 1;
-      WHERETRACE(0x10, ("range skip-scan regions: %u..%u  adjust=%d est=%d\n",
-                           nLower, nUpper, nAdjust*-1, pLoop->nOut));
-    }
-
-  }else{
-    assert( *pbDone==0 );
-  }
-
-  tdsqlite3ValueFree(p1);
-  tdsqlite3ValueFree(p2);
-  tdsqlite3ValueFree(pVal);
-
-  return rc;
-}
-#endif /* SQLITE_ENABLE_STAT4 */
-
-/*
-** This function is used to estimate the number of rows that will be visited
-** by scanning an index for a range of values. The range may have an upper
-** bound, a lower bound, or both. The WHERE clause terms that set the upper
-** and lower bounds are represented by pLower and pUpper respectively. For
-** example, assuming that index p is on t1(a):
-**
-**   ... FROM t1 WHERE a > ? AND a < ? ...
-**                    |_____|   |_____|
-**                       |         |
-**                     pLower    pUpper
-**
-** If either of the upper or lower bound is not present, then NULL is passed in
-** place of the corresponding WhereTerm.
-**
-** The value in (pBuilder->pNew->u.btree.nEq) is the number of the index
-** column subject to the range constraint. Or, equivalently, the number of
-** equality constraints optimized by the proposed index scan. For example,
-** assuming index p is on t1(a, b), and the SQL query is:
-**
-**   ... FROM t1 WHERE a = ? AND b > ? AND b < ? ...
-**
-** then nEq is set to 1 (as the range restricted column, b, is the second 
-** left-most column of the index). Or, if the query is:
-**
-**   ... FROM t1 WHERE a > ? AND a < ? ...
-**
-** then nEq is set to 0.
-**
-** When this function is called, *pnOut is set to the tdsqlite3LogEst() of the
-** number of rows that the index scan is expected to visit without 
-** considering the range constraints. If nEq is 0, then *pnOut is the number of 
-** rows in the index. Assuming no error occurs, *pnOut is adjusted (reduced)
-** to account for the range constraints pLower and pUpper.
-** 
-** In the absence of sqlite_stat4 ANALYZE data, or if such data cannot be
-** used, a single range inequality reduces the search space by a factor of 4. 
-** and a pair of constraints (x>? AND x<?) reduces the expected number of
-** rows visited by a factor of 64.
-*/
-static int whereRangeScanEst(
-  Parse *pParse,       /* Parsing & code generating context */
-  WhereLoopBuilder *pBuilder,
-  WhereTerm *pLower,   /* Lower bound on the range. ex: "x>123" Might be NULL */
-  WhereTerm *pUpper,   /* Upper bound on the range. ex: "x<455" Might be NULL */
-  WhereLoop *pLoop     /* Modify the .nOut and maybe .rRun fields */
-){
-  int rc = SQLITE_OK;
-  int nOut = pLoop->nOut;
-  LogEst nNew;
-
-#ifdef SQLITE_ENABLE_STAT4
-  Index *p = pLoop->u.btree.pIndex;
-  int nEq = pLoop->u.btree.nEq;
-
-  if( p->nSample>0 && ALWAYS(nEq<p->nSampleCol)
-   && OptimizationEnabled(pParse->db, SQLITE_Stat4)
-  ){
-    if( nEq==pBuilder->nRecValid ){
-      UnpackedRecord *pRec = pBuilder->pRec;
-      tRowcnt a[2];
-      int nBtm = pLoop->u.btree.nBtm;
-      int nTop = pLoop->u.btree.nTop;
-
-      /* Variable iLower will be set to the estimate of the number of rows in 
-      ** the index that are less than the lower bound of the range query. The
-      ** lower bound being the concatenation of $P and $L, where $P is the
-      ** key-prefix formed by the nEq values matched against the nEq left-most
-      ** columns of the index, and $L is the value in pLower.
-      **
-      ** Or, if pLower is NULL or $L cannot be extracted from it (because it
-      ** is not a simple variable or literal value), the lower bound of the
-      ** range is $P. Due to a quirk in the way whereKeyStats() works, even
-      ** if $L is available, whereKeyStats() is called for both ($P) and 
-      ** ($P:$L) and the larger of the two returned values is used.
-      **
-      ** Similarly, iUpper is to be set to the estimate of the number of rows
-      ** less than the upper bound of the range query. Where the upper bound
-      ** is either ($P) or ($P:$U). Again, even if $U is available, both values
-      ** of iUpper are requested of whereKeyStats() and the smaller used.
-      **
-      ** The number of rows between the two bounds is then just iUpper-iLower.
-      */
-      tRowcnt iLower;     /* Rows less than the lower bound */
-      tRowcnt iUpper;     /* Rows less than the upper bound */
-      int iLwrIdx = -2;   /* aSample[] for the lower bound */
-      int iUprIdx = -1;   /* aSample[] for the upper bound */
-
-      if( pRec ){
-        testcase( pRec->nField!=pBuilder->nRecValid );
-        pRec->nField = pBuilder->nRecValid;
-      }
-      /* Determine iLower and iUpper using ($P) only. */
-      if( nEq==0 ){
-        iLower = 0;
-        iUpper = p->nRowEst0;
-      }else{
-        /* Note: this call could be optimized away - since the same values must 
-        ** have been requested when testing key $P in whereEqualScanEst().  */
-        whereKeyStats(pParse, p, pRec, 0, a);
-        iLower = a[0];
-        iUpper = a[0] + a[1];
-      }
-
-      assert( pLower==0 || (pLower->eOperator & (WO_GT|WO_GE))!=0 );
-      assert( pUpper==0 || (pUpper->eOperator & (WO_LT|WO_LE))!=0 );
-      assert( p->aSortOrder!=0 );
-      if( p->aSortOrder[nEq] ){
-        /* The roles of pLower and pUpper are swapped for a DESC index */
-        SWAP(WhereTerm*, pLower, pUpper);
-        SWAP(int, nBtm, nTop);
-      }
-
-      /* If possible, improve on the iLower estimate using ($P:$L). */
-      if( pLower ){
-        int n;                    /* Values extracted from pExpr */
-        Expr *pExpr = pLower->pExpr->pRight;
-        rc = tdsqlite3Stat4ProbeSetValue(pParse, p, &pRec, pExpr, nBtm, nEq, &n);
-        if( rc==SQLITE_OK && n ){
-          tRowcnt iNew;
-          u16 mask = WO_GT|WO_LE;
-          if( tdsqlite3ExprVectorSize(pExpr)>n ) mask = (WO_LE|WO_LT);
-          iLwrIdx = whereKeyStats(pParse, p, pRec, 0, a);
-          iNew = a[0] + ((pLower->eOperator & mask) ? a[1] : 0);
-          if( iNew>iLower ) iLower = iNew;
-          nOut--;
-          pLower = 0;
-        }
-      }
-
-      /* If possible, improve on the iUpper estimate using ($P:$U). */
-      if( pUpper ){
-        int n;                    /* Values extracted from pExpr */
-        Expr *pExpr = pUpper->pExpr->pRight;
-        rc = tdsqlite3Stat4ProbeSetValue(pParse, p, &pRec, pExpr, nTop, nEq, &n);
-        if( rc==SQLITE_OK && n ){
-          tRowcnt iNew;
-          u16 mask = WO_GT|WO_LE;
-          if( tdsqlite3ExprVectorSize(pExpr)>n ) mask = (WO_LE|WO_LT);
-          iUprIdx = whereKeyStats(pParse, p, pRec, 1, a);
-          iNew = a[0] + ((pUpper->eOperator & mask) ? a[1] : 0);
-          if( iNew<iUpper ) iUpper = iNew;
-          nOut--;
-          pUpper = 0;
-        }
-      }
-
-      pBuilder->pRec = pRec;
-      if( rc==SQLITE_OK ){
-        if( iUpper>iLower ){
-          nNew = tdsqlite3LogEst(iUpper - iLower);
-          /* TUNING:  If both iUpper and iLower are derived from the same
-          ** sample, then assume they are 4x more selective.  This brings
-          ** the estimated selectivity more in line with what it would be
-          ** if estimated without the use of STAT4 tables. */
-          if( iLwrIdx==iUprIdx ) nNew -= 20;  assert( 20==tdsqlite3LogEst(4) );
-        }else{
-          nNew = 10;        assert( 10==tdsqlite3LogEst(2) );
-        }
-        if( nNew<nOut ){
-          nOut = nNew;
-        }
-        WHERETRACE(0x10, ("STAT4 range scan: %u..%u  est=%d\n",
-                           (u32)iLower, (u32)iUpper, nOut));
-      }
-    }else{
-      int bDone = 0;
-      rc = whereRangeSkipScanEst(pParse, pLower, pUpper, pLoop, &bDone);
-      if( bDone ) return rc;
-    }
-  }
-#else
-  UNUSED_PARAMETER(pParse);
-  UNUSED_PARAMETER(pBuilder);
-  assert( pLower || pUpper );
-#endif
-  assert( pUpper==0 || (pUpper->wtFlags & TERM_VNULL)==0 );
-  nNew = whereRangeAdjust(pLower, nOut);
-  nNew = whereRangeAdjust(pUpper, nNew);
-
-  /* TUNING: If there is both an upper and lower limit and neither limit
-  ** has an application-defined likelihood(), assume the range is
-  ** reduced by an additional 75%. This means that, by default, an open-ended
-  ** range query (e.g. col > ?) is assumed to match 1/4 of the rows in the
-  ** index. While a closed range (e.g. col BETWEEN ? AND ?) is estimated to
-  ** match 1/64 of the index. */ 
-  if( pLower && pLower->truthProb>0 && pUpper && pUpper->truthProb>0 ){
-    nNew -= 20;
-  }
-
-  nOut -= (pLower!=0) + (pUpper!=0);
-  if( nNew<10 ) nNew = 10;
-  if( nNew<nOut ) nOut = nNew;
-#if defined(WHERETRACE_ENABLED)
-  if( pLoop->nOut>nOut ){
-    WHERETRACE(0x10,("Range scan lowers nOut from %d to %d\n",
-                    pLoop->nOut, nOut));
-  }
-#endif
-  pLoop->nOut = (LogEst)nOut;
-  return rc;
-}
-
-#ifdef SQLITE_ENABLE_STAT4
-/*
-** Estimate the number of rows that will be returned based on
-** an equality constraint x=VALUE and where that VALUE occurs in
-** the histogram data.  This only works when x is the left-most
-** column of an index and sqlite_stat4 histogram data is available
-** for that index.  When pExpr==NULL that means the constraint is
-** "x IS NULL" instead of "x=VALUE".
-**
-** Write the estimated row count into *pnRow and return SQLITE_OK. 
-** If unable to make an estimate, leave *pnRow unchanged and return
-** non-zero.
-**
-** This routine can fail if it is unable to load a collating sequence
-** required for string comparison, or if unable to allocate memory
-** for a UTF conversion required for comparison.  The error is stored
-** in the pParse structure.
-*/
-static int whereEqualScanEst(
-  Parse *pParse,       /* Parsing & code generating context */
-  WhereLoopBuilder *pBuilder,
-  Expr *pExpr,         /* Expression for VALUE in the x=VALUE constraint */
-  tRowcnt *pnRow       /* Write the revised row estimate here */
-){
-  Index *p = pBuilder->pNew->u.btree.pIndex;
-  int nEq = pBuilder->pNew->u.btree.nEq;
-  UnpackedRecord *pRec = pBuilder->pRec;
-  int rc;                   /* Subfunction return code */
-  tRowcnt a[2];             /* Statistics */
-  int bOk;
-
-  assert( nEq>=1 );
-  assert( nEq<=p->nColumn );
-  assert( p->aSample!=0 );
-  assert( p->nSample>0 );
-  assert( pBuilder->nRecValid<nEq );
-
-  /* If values are not available for all fields of the index to the left
-  ** of this one, no estimate can be made. Return SQLITE_NOTFOUND. */
-  if( pBuilder->nRecValid<(nEq-1) ){
-    return SQLITE_NOTFOUND;
-  }
-
-  /* This is an optimization only. The call to tdsqlite3Stat4ProbeSetValue()
-  ** below would return the same value.  */
-  if( nEq>=p->nColumn ){
-    *pnRow = 1;
-    return SQLITE_OK;
-  }
-
-  rc = tdsqlite3Stat4ProbeSetValue(pParse, p, &pRec, pExpr, 1, nEq-1, &bOk);
-  pBuilder->pRec = pRec;
-  if( rc!=SQLITE_OK ) return rc;
-  if( bOk==0 ) return SQLITE_NOTFOUND;
-  pBuilder->nRecValid = nEq;
-
-  whereKeyStats(pParse, p, pRec, 0, a);
-  WHERETRACE(0x10,("equality scan regions %s(%d): %d\n",
-                   p->zName, nEq-1, (int)a[1]));
-  *pnRow = a[1];
-  
-  return rc;
-}
-#endif /* SQLITE_ENABLE_STAT4 */
-
-#ifdef SQLITE_ENABLE_STAT4
-/*
-** Estimate the number of rows that will be returned based on
-** an IN constraint where the right-hand side of the IN operator
-** is a list of values.  Example:
-**
-**        WHERE x IN (1,2,3,4)
-**
-** Write the estimated row count into *pnRow and return SQLITE_OK. 
-** If unable to make an estimate, leave *pnRow unchanged and return
-** non-zero.
-**
-** This routine can fail if it is unable to load a collating sequence
-** required for string comparison, or if unable to allocate memory
-** for a UTF conversion required for comparison.  The error is stored
-** in the pParse structure.
-*/
-static int whereInScanEst(
-  Parse *pParse,       /* Parsing & code generating context */
-  WhereLoopBuilder *pBuilder,
-  ExprList *pList,     /* The value list on the RHS of "x IN (v1,v2,v3,...)" */
-  tRowcnt *pnRow       /* Write the revised row estimate here */
-){
-  Index *p = pBuilder->pNew->u.btree.pIndex;
-  i64 nRow0 = tdsqlite3LogEstToInt(p->aiRowLogEst[0]);
-  int nRecValid = pBuilder->nRecValid;
-  int rc = SQLITE_OK;     /* Subfunction return code */
-  tRowcnt nEst;           /* Number of rows for a single term */
-  tRowcnt nRowEst = 0;    /* New estimate of the number of rows */
-  int i;                  /* Loop counter */
-
-  assert( p->aSample!=0 );
-  for(i=0; rc==SQLITE_OK && i<pList->nExpr; i++){
-    nEst = nRow0;
-    rc = whereEqualScanEst(pParse, pBuilder, pList->a[i].pExpr, &nEst);
-    nRowEst += nEst;
-    pBuilder->nRecValid = nRecValid;
-  }
-
-  if( rc==SQLITE_OK ){
-    if( nRowEst > nRow0 ) nRowEst = nRow0;
-    *pnRow = nRowEst;
-    WHERETRACE(0x10,("IN row estimate: est=%d\n", nRowEst));
-  }
-  assert( pBuilder->nRecValid==nRecValid );
-  return rc;
-}
-#endif /* SQLITE_ENABLE_STAT4 */
-
-
-#ifdef WHERETRACE_ENABLED
-/*
-** Print the content of a WhereTerm object
-*/
-SQLITE_PRIVATE void tdsqlite3WhereTermPrint(WhereTerm *pTerm, int iTerm){
-  if( pTerm==0 ){
-    tdsqlite3DebugPrintf("TERM-%-3d NULL\n", iTerm);
-  }else{
-    char zType[8];
-    char zLeft[50];
-    memcpy(zType, "....", 5);
-    if( pTerm->wtFlags & TERM_VIRTUAL ) zType[0] = 'V';
-    if( pTerm->eOperator & WO_EQUIV  ) zType[1] = 'E';
-    if( ExprHasProperty(pTerm->pExpr, EP_FromJoin) ) zType[2] = 'L';
-    if( pTerm->wtFlags & TERM_CODED  ) zType[3] = 'C';
-    if( pTerm->eOperator & WO_SINGLE ){
-      tdsqlite3_snprintf(sizeof(zLeft),zLeft,"left={%d:%d}",
-                       pTerm->leftCursor, pTerm->u.leftColumn);
-    }else if( (pTerm->eOperator & WO_OR)!=0 && pTerm->u.pOrInfo!=0 ){
-      tdsqlite3_snprintf(sizeof(zLeft),zLeft,"indexable=0x%lld", 
-                       pTerm->u.pOrInfo->indexable);
-    }else{
-      tdsqlite3_snprintf(sizeof(zLeft),zLeft,"left=%d", pTerm->leftCursor);
-    }
-    tdsqlite3DebugPrintf(
-       "TERM-%-3d %p %s %-12s op=%03x wtFlags=%04x",
-       iTerm, pTerm, zType, zLeft, pTerm->eOperator, pTerm->wtFlags);
-    /* The 0x10000 .wheretrace flag causes extra information to be
-    ** shown about each Term */
-    if( tdsqlite3WhereTrace & 0x10000 ){
-      tdsqlite3DebugPrintf(" prob=%-3d prereq=%llx,%llx",
-        pTerm->truthProb, (u64)pTerm->prereqAll, (u64)pTerm->prereqRight);
-    }
-    if( pTerm->iField ){
-      tdsqlite3DebugPrintf(" iField=%d", pTerm->iField);
-    }
-    if( pTerm->iParent>=0 ){
-      tdsqlite3DebugPrintf(" iParent=%d", pTerm->iParent);
-    }
-    tdsqlite3DebugPrintf("\n");
-    tdsqlite3TreeViewExpr(0, pTerm->pExpr, 0);
-  }
-}
-#endif
-
-#ifdef WHERETRACE_ENABLED
-/*
-** Show the complete content of a WhereClause
-*/
-SQLITE_PRIVATE void tdsqlite3WhereClausePrint(WhereClause *pWC){
-  int i;
-  for(i=0; i<pWC->nTerm; i++){
-    tdsqlite3WhereTermPrint(&pWC->a[i], i);
-  }
-}
-#endif
-
-#ifdef WHERETRACE_ENABLED
-/*
-** Print a WhereLoop object for debugging purposes
-*/
-SQLITE_PRIVATE void tdsqlite3WhereLoopPrint(WhereLoop *p, WhereClause *pWC){
-  WhereInfo *pWInfo = pWC->pWInfo;
-  int nb = 1+(pWInfo->pTabList->nSrc+3)/4;
-  struct SrcList_item *pItem = pWInfo->pTabList->a + p->iTab;
-  Table *pTab = pItem->pTab;
-  Bitmask mAll = (((Bitmask)1)<<(nb*4)) - 1;
-  tdsqlite3DebugPrintf("%c%2d.%0*llx.%0*llx", p->cId,
-                     p->iTab, nb, p->maskSelf, nb, p->prereq & mAll);
-  tdsqlite3DebugPrintf(" %12s",
-                     pItem->zAlias ? pItem->zAlias : pTab->zName);
-  if( (p->wsFlags & WHERE_VIRTUALTABLE)==0 ){
-    const char *zName;
-    if( p->u.btree.pIndex && (zName = p->u.btree.pIndex->zName)!=0 ){
-      if( strncmp(zName, "sqlite_autoindex_", 17)==0 ){
-        int i = tdsqlite3Strlen30(zName) - 1;
-        while( zName[i]!='_' ) i--;
-        zName += i;
-      }
-      tdsqlite3DebugPrintf(".%-16s %2d", zName, p->u.btree.nEq);
-    }else{
-      tdsqlite3DebugPrintf("%20s","");
-    }
-  }else{
-    char *z;
-    if( p->u.vtab.idxStr ){
-      z = tdsqlite3_mprintf("(%d,\"%s\",%#x)",
-                p->u.vtab.idxNum, p->u.vtab.idxStr, p->u.vtab.omitMask);
-    }else{
-      z = tdsqlite3_mprintf("(%d,%x)", p->u.vtab.idxNum, p->u.vtab.omitMask);
-    }
-    tdsqlite3DebugPrintf(" %-19s", z);
-    tdsqlite3_free(z);
-  }
-  if( p->wsFlags & WHERE_SKIPSCAN ){
-    tdsqlite3DebugPrintf(" f %05x %d-%d", p->wsFlags, p->nLTerm,p->nSkip);
-  }else{
-    tdsqlite3DebugPrintf(" f %05x N %d", p->wsFlags, p->nLTerm);
-  }
-  tdsqlite3DebugPrintf(" cost %d,%d,%d\n", p->rSetup, p->rRun, p->nOut);
-  if( p->nLTerm && (tdsqlite3WhereTrace & 0x100)!=0 ){
-    int i;
-    for(i=0; i<p->nLTerm; i++){
-      tdsqlite3WhereTermPrint(p->aLTerm[i], i);
-    }
-  }
-}
-#endif
-
-/*
-** Convert bulk memory into a valid WhereLoop that can be passed
-** to whereLoopClear harmlessly.
-*/
-static void whereLoopInit(WhereLoop *p){
-  p->aLTerm = p->aLTermSpace;
-  p->nLTerm = 0;
-  p->nLSlot = ArraySize(p->aLTermSpace);
-  p->wsFlags = 0;
-}
-
-/*
-** Clear the WhereLoop.u union.  Leave WhereLoop.pLTerm intact.
-*/
-static void whereLoopClearUnion(tdsqlite3 *db, WhereLoop *p){
-  if( p->wsFlags & (WHERE_VIRTUALTABLE|WHERE_AUTO_INDEX) ){
-    if( (p->wsFlags & WHERE_VIRTUALTABLE)!=0 && p->u.vtab.needFree ){
-      tdsqlite3_free(p->u.vtab.idxStr);
-      p->u.vtab.needFree = 0;
-      p->u.vtab.idxStr = 0;
-    }else if( (p->wsFlags & WHERE_AUTO_INDEX)!=0 && p->u.btree.pIndex!=0 ){
-      tdsqlite3DbFree(db, p->u.btree.pIndex->zColAff);
-      tdsqlite3DbFreeNN(db, p->u.btree.pIndex);
-      p->u.btree.pIndex = 0;
-    }
-  }
-}
-
-/*
-** Deallocate internal memory used by a WhereLoop object
-*/
-static void whereLoopClear(tdsqlite3 *db, WhereLoop *p){
-  if( p->aLTerm!=p->aLTermSpace ) tdsqlite3DbFreeNN(db, p->aLTerm);
-  whereLoopClearUnion(db, p);
-  whereLoopInit(p);
-}
-
-/*
-** Increase the memory allocation for pLoop->aLTerm[] to be at least n.
-*/
-static int whereLoopResize(tdsqlite3 *db, WhereLoop *p, int n){
-  WhereTerm **paNew;
-  if( p->nLSlot>=n ) return SQLITE_OK;
-  n = (n+7)&~7;
-  paNew = tdsqlite3DbMallocRawNN(db, sizeof(p->aLTerm[0])*n);
-  if( paNew==0 ) return SQLITE_NOMEM_BKPT;
-  memcpy(paNew, p->aLTerm, sizeof(p->aLTerm[0])*p->nLSlot);
-  if( p->aLTerm!=p->aLTermSpace ) tdsqlite3DbFreeNN(db, p->aLTerm);
-  p->aLTerm = paNew;
-  p->nLSlot = n;
-  return SQLITE_OK;
-}
-
-/*
-** Transfer content from the second pLoop into the first.
-*/
-static int whereLoopXfer(tdsqlite3 *db, WhereLoop *pTo, WhereLoop *pFrom){
-  whereLoopClearUnion(db, pTo);
-  if( whereLoopResize(db, pTo, pFrom->nLTerm) ){
-    memset(&pTo->u, 0, sizeof(pTo->u));
-    return SQLITE_NOMEM_BKPT;
-  }
-  memcpy(pTo, pFrom, WHERE_LOOP_XFER_SZ);
-  memcpy(pTo->aLTerm, pFrom->aLTerm, pTo->nLTerm*sizeof(pTo->aLTerm[0]));
-  if( pFrom->wsFlags & WHERE_VIRTUALTABLE ){
-    pFrom->u.vtab.needFree = 0;
-  }else if( (pFrom->wsFlags & WHERE_AUTO_INDEX)!=0 ){
-    pFrom->u.btree.pIndex = 0;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Delete a WhereLoop object
-*/
-static void whereLoopDelete(tdsqlite3 *db, WhereLoop *p){
-  whereLoopClear(db, p);
-  tdsqlite3DbFreeNN(db, p);
-}
-
-/*
-** Free a WhereInfo structure
-*/
-static void whereInfoFree(tdsqlite3 *db, WhereInfo *pWInfo){
-  int i;
-  assert( pWInfo!=0 );
-  for(i=0; i<pWInfo->nLevel; i++){
-    WhereLevel *pLevel = &pWInfo->a[i];
-    if( pLevel->pWLoop && (pLevel->pWLoop->wsFlags & WHERE_IN_ABLE) ){
-      tdsqlite3DbFree(db, pLevel->u.in.aInLoop);
-    }
-  }
-  tdsqlite3WhereClauseClear(&pWInfo->sWC);
-  while( pWInfo->pLoops ){
-    WhereLoop *p = pWInfo->pLoops;
-    pWInfo->pLoops = p->pNextLoop;
-    whereLoopDelete(db, p);
-  }
-  assert( pWInfo->pExprMods==0 );
-  tdsqlite3DbFreeNN(db, pWInfo);
-}
-
-/*
-** Return TRUE if all of the following are true:
-**
-**   (1)  X has the same or lower cost that Y
-**   (2)  X uses fewer WHERE clause terms than Y
-**   (3)  Every WHERE clause term used by X is also used by Y
-**   (4)  X skips at least as many columns as Y
-**   (5)  If X is a covering index, than Y is too
-**
-** Conditions (2) and (3) mean that X is a "proper subset" of Y.
-** If X is a proper subset of Y then Y is a better choice and ought
-** to have a lower cost.  This routine returns TRUE when that cost 
-** relationship is inverted and needs to be adjusted.  Constraint (4)
-** was added because if X uses skip-scan less than Y it still might
-** deserve a lower cost even if it is a proper subset of Y.  Constraint (5)
-** was added because a covering index probably deserves to have a lower cost
-** than a non-covering index even if it is a proper subset.
-*/
-static int whereLoopCheaperProperSubset(
-  const WhereLoop *pX,       /* First WhereLoop to compare */
-  const WhereLoop *pY        /* Compare against this WhereLoop */
-){
-  int i, j;
-  if( pX->nLTerm-pX->nSkip >= pY->nLTerm-pY->nSkip ){
-    return 0; /* X is not a subset of Y */
-  }
-  if( pY->nSkip > pX->nSkip ) return 0;
-  if( pX->rRun >= pY->rRun ){
-    if( pX->rRun > pY->rRun ) return 0;    /* X costs more than Y */
-    if( pX->nOut > pY->nOut ) return 0;    /* X costs more than Y */
-  }
-  for(i=pX->nLTerm-1; i>=0; i--){
-    if( pX->aLTerm[i]==0 ) continue;
-    for(j=pY->nLTerm-1; j>=0; j--){
-      if( pY->aLTerm[j]==pX->aLTerm[i] ) break;
-    }
-    if( j<0 ) return 0;  /* X not a subset of Y since term X[i] not used by Y */
-  }
-  if( (pX->wsFlags&WHERE_IDX_ONLY)!=0 
-   && (pY->wsFlags&WHERE_IDX_ONLY)==0 ){
-    return 0;  /* Constraint (5) */
-  }
-  return 1;  /* All conditions meet */
-}
-
-/*
-** Try to adjust the cost of WhereLoop pTemplate upwards or downwards so
-** that:
-**
-**   (1) pTemplate costs less than any other WhereLoops that are a proper
-**       subset of pTemplate
-**
-**   (2) pTemplate costs more than any other WhereLoops for which pTemplate
-**       is a proper subset.
-**
-** To say "WhereLoop X is a proper subset of Y" means that X uses fewer
-** WHERE clause terms than Y and that every WHERE clause term used by X is
-** also used by Y.
-*/
-static void whereLoopAdjustCost(const WhereLoop *p, WhereLoop *pTemplate){
-  if( (pTemplate->wsFlags & WHERE_INDEXED)==0 ) return;
-  for(; p; p=p->pNextLoop){
-    if( p->iTab!=pTemplate->iTab ) continue;
-    if( (p->wsFlags & WHERE_INDEXED)==0 ) continue;
-    if( whereLoopCheaperProperSubset(p, pTemplate) ){
-      /* Adjust pTemplate cost downward so that it is cheaper than its 
-      ** subset p. */
-      WHERETRACE(0x80,("subset cost adjustment %d,%d to %d,%d\n",
-                       pTemplate->rRun, pTemplate->nOut, p->rRun, p->nOut-1));
-      pTemplate->rRun = p->rRun;
-      pTemplate->nOut = p->nOut - 1;
-    }else if( whereLoopCheaperProperSubset(pTemplate, p) ){
-      /* Adjust pTemplate cost upward so that it is costlier than p since
-      ** pTemplate is a proper subset of p */
-      WHERETRACE(0x80,("subset cost adjustment %d,%d to %d,%d\n",
-                       pTemplate->rRun, pTemplate->nOut, p->rRun, p->nOut+1));
-      pTemplate->rRun = p->rRun;
-      pTemplate->nOut = p->nOut + 1;
-    }
-  }
-}
-
-/*
-** Search the list of WhereLoops in *ppPrev looking for one that can be
-** replaced by pTemplate.
-**
-** Return NULL if pTemplate does not belong on the WhereLoop list.
-** In other words if pTemplate ought to be dropped from further consideration.
-**
-** If pX is a WhereLoop that pTemplate can replace, then return the
-** link that points to pX.
-**
-** If pTemplate cannot replace any existing element of the list but needs
-** to be added to the list as a new entry, then return a pointer to the
-** tail of the list.
-*/
-static WhereLoop **whereLoopFindLesser(
-  WhereLoop **ppPrev,
-  const WhereLoop *pTemplate
-){
-  WhereLoop *p;
-  for(p=(*ppPrev); p; ppPrev=&p->pNextLoop, p=*ppPrev){
-    if( p->iTab!=pTemplate->iTab || p->iSortIdx!=pTemplate->iSortIdx ){
-      /* If either the iTab or iSortIdx values for two WhereLoop are different
-      ** then those WhereLoops need to be considered separately.  Neither is
-      ** a candidate to replace the other. */
-      continue;
-    }
-    /* In the current implementation, the rSetup value is either zero
-    ** or the cost of building an automatic index (NlogN) and the NlogN
-    ** is the same for compatible WhereLoops. */
-    assert( p->rSetup==0 || pTemplate->rSetup==0 
-                 || p->rSetup==pTemplate->rSetup );
-
-    /* whereLoopAddBtree() always generates and inserts the automatic index
-    ** case first.  Hence compatible candidate WhereLoops never have a larger
-    ** rSetup. Call this SETUP-INVARIANT */
-    assert( p->rSetup>=pTemplate->rSetup );
-
-    /* Any loop using an appliation-defined index (or PRIMARY KEY or
-    ** UNIQUE constraint) with one or more == constraints is better
-    ** than an automatic index. Unless it is a skip-scan. */
-    if( (p->wsFlags & WHERE_AUTO_INDEX)!=0
-     && (pTemplate->nSkip)==0
-     && (pTemplate->wsFlags & WHERE_INDEXED)!=0
-     && (pTemplate->wsFlags & WHERE_COLUMN_EQ)!=0
-     && (p->prereq & pTemplate->prereq)==pTemplate->prereq
-    ){
-      break;
-    }
-
-    /* If existing WhereLoop p is better than pTemplate, pTemplate can be
-    ** discarded.  WhereLoop p is better if:
-    **   (1)  p has no more dependencies than pTemplate, and
-    **   (2)  p has an equal or lower cost than pTemplate
-    */
-    if( (p->prereq & pTemplate->prereq)==p->prereq    /* (1)  */
-     && p->rSetup<=pTemplate->rSetup                  /* (2a) */
-     && p->rRun<=pTemplate->rRun                      /* (2b) */
-     && p->nOut<=pTemplate->nOut                      /* (2c) */
-    ){
-      return 0;  /* Discard pTemplate */
-    }
-
-    /* If pTemplate is always better than p, then cause p to be overwritten
-    ** with pTemplate.  pTemplate is better than p if:
-    **   (1)  pTemplate has no more dependences than p, and
-    **   (2)  pTemplate has an equal or lower cost than p.
-    */
-    if( (p->prereq & pTemplate->prereq)==pTemplate->prereq   /* (1)  */
-     && p->rRun>=pTemplate->rRun                             /* (2a) */
-     && p->nOut>=pTemplate->nOut                             /* (2b) */
-    ){
-      assert( p->rSetup>=pTemplate->rSetup ); /* SETUP-INVARIANT above */
-      break;   /* Cause p to be overwritten by pTemplate */
-    }
-  }
-  return ppPrev;
-}
-
-/*
-** Insert or replace a WhereLoop entry using the template supplied.
-**
-** An existing WhereLoop entry might be overwritten if the new template
-** is better and has fewer dependencies.  Or the template will be ignored
-** and no insert will occur if an existing WhereLoop is faster and has
-** fewer dependencies than the template.  Otherwise a new WhereLoop is
-** added based on the template.
-**
-** If pBuilder->pOrSet is not NULL then we care about only the
-** prerequisites and rRun and nOut costs of the N best loops.  That
-** information is gathered in the pBuilder->pOrSet object.  This special
-** processing mode is used only for OR clause processing.
-**
-** When accumulating multiple loops (when pBuilder->pOrSet is NULL) we
-** still might overwrite similar loops with the new template if the
-** new template is better.  Loops may be overwritten if the following 
-** conditions are met:
-**
-**    (1)  They have the same iTab.
-**    (2)  They have the same iSortIdx.
-**    (3)  The template has same or fewer dependencies than the current loop
-**    (4)  The template has the same or lower cost than the current loop
-*/
-static int whereLoopInsert(WhereLoopBuilder *pBuilder, WhereLoop *pTemplate){
-  WhereLoop **ppPrev, *p;
-  WhereInfo *pWInfo = pBuilder->pWInfo;
-  tdsqlite3 *db = pWInfo->pParse->db;
-  int rc;
-
-  /* Stop the search once we hit the query planner search limit */
-  if( pBuilder->iPlanLimit==0 ){
-    WHERETRACE(0xffffffff,("=== query planner search limit reached ===\n"));
-    if( pBuilder->pOrSet ) pBuilder->pOrSet->n = 0;
-    return SQLITE_DONE;
-  }
-  pBuilder->iPlanLimit--;
-
-  whereLoopAdjustCost(pWInfo->pLoops, pTemplate);
-
-  /* If pBuilder->pOrSet is defined, then only keep track of the costs
-  ** and prereqs.
-  */
-  if( pBuilder->pOrSet!=0 ){
-    if( pTemplate->nLTerm ){
-#if WHERETRACE_ENABLED
-      u16 n = pBuilder->pOrSet->n;
-      int x =
-#endif
-      whereOrInsert(pBuilder->pOrSet, pTemplate->prereq, pTemplate->rRun,
-                                    pTemplate->nOut);
-#if WHERETRACE_ENABLED /* 0x8 */
-      if( tdsqlite3WhereTrace & 0x8 ){
-        tdsqlite3DebugPrintf(x?"   or-%d:  ":"   or-X:  ", n);
-        tdsqlite3WhereLoopPrint(pTemplate, pBuilder->pWC);
-      }
-#endif
-    }
-    return SQLITE_OK;
-  }
-
-  /* Look for an existing WhereLoop to replace with pTemplate
-  */
-  ppPrev = whereLoopFindLesser(&pWInfo->pLoops, pTemplate);
-
-  if( ppPrev==0 ){
-    /* There already exists a WhereLoop on the list that is better
-    ** than pTemplate, so just ignore pTemplate */
-#if WHERETRACE_ENABLED /* 0x8 */
-    if( tdsqlite3WhereTrace & 0x8 ){
-      tdsqlite3DebugPrintf("   skip: ");
-      tdsqlite3WhereLoopPrint(pTemplate, pBuilder->pWC);
-    }
-#endif
-    return SQLITE_OK;  
-  }else{
-    p = *ppPrev;
-  }
-
-  /* If we reach this point it means that either p[] should be overwritten
-  ** with pTemplate[] if p[] exists, or if p==NULL then allocate a new
-  ** WhereLoop and insert it.
-  */
-#if WHERETRACE_ENABLED /* 0x8 */
-  if( tdsqlite3WhereTrace & 0x8 ){
-    if( p!=0 ){
-      tdsqlite3DebugPrintf("replace: ");
-      tdsqlite3WhereLoopPrint(p, pBuilder->pWC);
-      tdsqlite3DebugPrintf("   with: ");
-    }else{
-      tdsqlite3DebugPrintf("    add: ");
-    }
-    tdsqlite3WhereLoopPrint(pTemplate, pBuilder->pWC);
-  }
-#endif
-  if( p==0 ){
-    /* Allocate a new WhereLoop to add to the end of the list */
-    *ppPrev = p = tdsqlite3DbMallocRawNN(db, sizeof(WhereLoop));
-    if( p==0 ) return SQLITE_NOMEM_BKPT;
-    whereLoopInit(p);
-    p->pNextLoop = 0;
-  }else{
-    /* We will be overwriting WhereLoop p[].  But before we do, first
-    ** go through the rest of the list and delete any other entries besides
-    ** p[] that are also supplated by pTemplate */
-    WhereLoop **ppTail = &p->pNextLoop;
-    WhereLoop *pToDel;
-    while( *ppTail ){
-      ppTail = whereLoopFindLesser(ppTail, pTemplate);
-      if( ppTail==0 ) break;
-      pToDel = *ppTail;
-      if( pToDel==0 ) break;
-      *ppTail = pToDel->pNextLoop;
-#if WHERETRACE_ENABLED /* 0x8 */
-      if( tdsqlite3WhereTrace & 0x8 ){
-        tdsqlite3DebugPrintf(" delete: ");
-        tdsqlite3WhereLoopPrint(pToDel, pBuilder->pWC);
-      }
-#endif
-      whereLoopDelete(db, pToDel);
-    }
-  }
-  rc = whereLoopXfer(db, p, pTemplate);
-  if( (p->wsFlags & WHERE_VIRTUALTABLE)==0 ){
-    Index *pIndex = p->u.btree.pIndex;
-    if( pIndex && pIndex->idxType==SQLITE_IDXTYPE_IPK ){
-      p->u.btree.pIndex = 0;
-    }
-  }
-  return rc;
-}
-
-/*
-** Adjust the WhereLoop.nOut value downward to account for terms of the
-** WHERE clause that reference the loop but which are not used by an
-** index.
-*
-** For every WHERE clause term that is not used by the index
-** and which has a truth probability assigned by one of the likelihood(),
-** likely(), or unlikely() SQL functions, reduce the estimated number
-** of output rows by the probability specified.
-**
-** TUNING:  For every WHERE clause term that is not used by the index
-** and which does not have an assigned truth probability, heuristics
-** described below are used to try to estimate the truth probability.
-** TODO --> Perhaps this is something that could be improved by better
-** table statistics.
-**
-** Heuristic 1:  Estimate the truth probability as 93.75%.  The 93.75%
-** value corresponds to -1 in LogEst notation, so this means decrement
-** the WhereLoop.nOut field for every such WHERE clause term.
-**
-** Heuristic 2:  If there exists one or more WHERE clause terms of the
-** form "x==EXPR" and EXPR is not a constant 0 or 1, then make sure the
-** final output row estimate is no greater than 1/4 of the total number
-** of rows in the table.  In other words, assume that x==EXPR will filter
-** out at least 3 out of 4 rows.  If EXPR is -1 or 0 or 1, then maybe the
-** "x" column is boolean or else -1 or 0 or 1 is a common default value
-** on the "x" column and so in that case only cap the output row estimate
-** at 1/2 instead of 1/4.
-*/
-static void whereLoopOutputAdjust(
-  WhereClause *pWC,      /* The WHERE clause */
-  WhereLoop *pLoop,      /* The loop to adjust downward */
-  LogEst nRow            /* Number of rows in the entire table */
-){
-  WhereTerm *pTerm, *pX;
-  Bitmask notAllowed = ~(pLoop->prereq|pLoop->maskSelf);
-  int i, j;
-  LogEst iReduce = 0;    /* pLoop->nOut should not exceed nRow-iReduce */
-
-  assert( (pLoop->wsFlags & WHERE_AUTO_INDEX)==0 );
-  for(i=pWC->nTerm, pTerm=pWC->a; i>0; i--, pTerm++){
-    assert( pTerm!=0 );
-    if( (pTerm->wtFlags & TERM_VIRTUAL)!=0 ) break;
-    if( (pTerm->prereqAll & pLoop->maskSelf)==0 ) continue;
-    if( (pTerm->prereqAll & notAllowed)!=0 ) continue;
-    for(j=pLoop->nLTerm-1; j>=0; j--){
-      pX = pLoop->aLTerm[j];
-      if( pX==0 ) continue;
-      if( pX==pTerm ) break;
-      if( pX->iParent>=0 && (&pWC->a[pX->iParent])==pTerm ) break;
-    }
-    if( j<0 ){
-      if( pTerm->truthProb<=0 ){
-        /* If a truth probability is specified using the likelihood() hints,
-        ** then use the probability provided by the application. */
-        pLoop->nOut += pTerm->truthProb;
-      }else{
-        /* In the absence of explicit truth probabilities, use heuristics to
-        ** guess a reasonable truth probability. */
-        pLoop->nOut--;
-        if( pTerm->eOperator&(WO_EQ|WO_IS) ){
-          Expr *pRight = pTerm->pExpr->pRight;
-          int k = 0;
-          testcase( pTerm->pExpr->op==TK_IS );
-          if( tdsqlite3ExprIsInteger(pRight, &k) && k>=(-1) && k<=1 ){
-            k = 10;
-          }else{
-            k = 20;
-          }
-          if( iReduce<k ) iReduce = k;
-        }
-      }
-    }
-  }
-  if( pLoop->nOut > nRow-iReduce )  pLoop->nOut = nRow - iReduce;
-}
-
-/* 
-** Term pTerm is a vector range comparison operation. The first comparison
-** in the vector can be optimized using column nEq of the index. This
-** function returns the total number of vector elements that can be used
-** as part of the range comparison.
-**
-** For example, if the query is:
-**
-**   WHERE a = ? AND (b, c, d) > (?, ?, ?)
-**
-** and the index:
-**
-**   CREATE INDEX ... ON (a, b, c, d, e)
-**
-** then this function would be invoked with nEq=1. The value returned in
-** this case is 3.
-*/
-static int whereRangeVectorLen(
-  Parse *pParse,       /* Parsing context */
-  int iCur,            /* Cursor open on pIdx */
-  Index *pIdx,         /* The index to be used for a inequality constraint */
-  int nEq,             /* Number of prior equality constraints on same index */
-  WhereTerm *pTerm     /* The vector inequality constraint */
-){
-  int nCmp = tdsqlite3ExprVectorSize(pTerm->pExpr->pLeft);
-  int i;
-
-  nCmp = MIN(nCmp, (pIdx->nColumn - nEq));
-  for(i=1; i<nCmp; i++){
-    /* Test if comparison i of pTerm is compatible with column (i+nEq) 
-    ** of the index. If not, exit the loop.  */
-    char aff;                     /* Comparison affinity */
-    char idxaff = 0;              /* Indexed columns affinity */
-    CollSeq *pColl;               /* Comparison collation sequence */
-    Expr *pLhs = pTerm->pExpr->pLeft->x.pList->a[i].pExpr;
-    Expr *pRhs = pTerm->pExpr->pRight;
-    if( pRhs->flags & EP_xIsSelect ){
-      pRhs = pRhs->x.pSelect->pEList->a[i].pExpr;
-    }else{
-      pRhs = pRhs->x.pList->a[i].pExpr;
-    }
-
-    /* Check that the LHS of the comparison is a column reference to
-    ** the right column of the right source table. And that the sort
-    ** order of the index column is the same as the sort order of the
-    ** leftmost index column.  */
-    if( pLhs->op!=TK_COLUMN 
-     || pLhs->iTable!=iCur 
-     || pLhs->iColumn!=pIdx->aiColumn[i+nEq] 
-     || pIdx->aSortOrder[i+nEq]!=pIdx->aSortOrder[nEq]
-    ){
-      break;
-    }
-
-    testcase( pLhs->iColumn==XN_ROWID );
-    aff = tdsqlite3CompareAffinity(pRhs, tdsqlite3ExprAffinity(pLhs));
-    idxaff = tdsqlite3TableColumnAffinity(pIdx->pTable, pLhs->iColumn);
-    if( aff!=idxaff ) break;
-
-    pColl = tdsqlite3BinaryCompareCollSeq(pParse, pLhs, pRhs);
-    if( pColl==0 ) break;
-    if( tdsqlite3StrICmp(pColl->zName, pIdx->azColl[i+nEq]) ) break;
-  }
-  return i;
-}
-
-/*
-** Adjust the cost C by the costMult facter T.  This only occurs if
-** compiled with -DSQLITE_ENABLE_COSTMULT
-*/
-#ifdef SQLITE_ENABLE_COSTMULT
-# define ApplyCostMultiplier(C,T)  C += T
-#else
-# define ApplyCostMultiplier(C,T)
-#endif
-
-/*
-** We have so far matched pBuilder->pNew->u.btree.nEq terms of the 
-** index pIndex. Try to match one more.
-**
-** When this function is called, pBuilder->pNew->nOut contains the 
-** number of rows expected to be visited by filtering using the nEq 
-** terms only. If it is modified, this value is restored before this 
-** function returns.
-**
-** If pProbe->idxType==SQLITE_IDXTYPE_IPK, that means pIndex is 
-** a fake index used for the INTEGER PRIMARY KEY.
-*/
-static int whereLoopAddBtreeIndex(
-  WhereLoopBuilder *pBuilder,     /* The WhereLoop factory */
-  struct SrcList_item *pSrc,      /* FROM clause term being analyzed */
-  Index *pProbe,                  /* An index on pSrc */
-  LogEst nInMul                   /* log(Number of iterations due to IN) */
-){
-  WhereInfo *pWInfo = pBuilder->pWInfo;  /* WHERE analyse context */
-  Parse *pParse = pWInfo->pParse;        /* Parsing context */
-  tdsqlite3 *db = pParse->db;       /* Database connection malloc context */
-  WhereLoop *pNew;                /* Template WhereLoop under construction */
-  WhereTerm *pTerm;               /* A WhereTerm under consideration */
-  int opMask;                     /* Valid operators for constraints */
-  WhereScan scan;                 /* Iterator for WHERE terms */
-  Bitmask saved_prereq;           /* Original value of pNew->prereq */
-  u16 saved_nLTerm;               /* Original value of pNew->nLTerm */
-  u16 saved_nEq;                  /* Original value of pNew->u.btree.nEq */
-  u16 saved_nBtm;                 /* Original value of pNew->u.btree.nBtm */
-  u16 saved_nTop;                 /* Original value of pNew->u.btree.nTop */
-  u16 saved_nSkip;                /* Original value of pNew->nSkip */
-  u32 saved_wsFlags;              /* Original value of pNew->wsFlags */
-  LogEst saved_nOut;              /* Original value of pNew->nOut */
-  int rc = SQLITE_OK;             /* Return code */
-  LogEst rSize;                   /* Number of rows in the table */
-  LogEst rLogSize;                /* Logarithm of table size */
-  WhereTerm *pTop = 0, *pBtm = 0; /* Top and bottom range constraints */
-
-  pNew = pBuilder->pNew;
-  if( db->mallocFailed ) return SQLITE_NOMEM_BKPT;
-  WHERETRACE(0x800, ("BEGIN %s.addBtreeIdx(%s), nEq=%d, nSkip=%d\n",
-                     pProbe->pTable->zName,pProbe->zName,
-                     pNew->u.btree.nEq, pNew->nSkip));
-
-  assert( (pNew->wsFlags & WHERE_VIRTUALTABLE)==0 );
-  assert( (pNew->wsFlags & WHERE_TOP_LIMIT)==0 );
-  if( pNew->wsFlags & WHERE_BTM_LIMIT ){
-    opMask = WO_LT|WO_LE;
-  }else{
-    assert( pNew->u.btree.nBtm==0 );
-    opMask = WO_EQ|WO_IN|WO_GT|WO_GE|WO_LT|WO_LE|WO_ISNULL|WO_IS;
-  }
-  if( pProbe->bUnordered ) opMask &= ~(WO_GT|WO_GE|WO_LT|WO_LE);
-
-  assert( pNew->u.btree.nEq<pProbe->nColumn );
-
-  saved_nEq = pNew->u.btree.nEq;
-  saved_nBtm = pNew->u.btree.nBtm;
-  saved_nTop = pNew->u.btree.nTop;
-  saved_nSkip = pNew->nSkip;
-  saved_nLTerm = pNew->nLTerm;
-  saved_wsFlags = pNew->wsFlags;
-  saved_prereq = pNew->prereq;
-  saved_nOut = pNew->nOut;
-  pTerm = whereScanInit(&scan, pBuilder->pWC, pSrc->iCursor, saved_nEq,
-                        opMask, pProbe);
-  pNew->rSetup = 0;
-  rSize = pProbe->aiRowLogEst[0];
-  rLogSize = estLog(rSize);
-  for(; rc==SQLITE_OK && pTerm!=0; pTerm = whereScanNext(&scan)){
-    u16 eOp = pTerm->eOperator;   /* Shorthand for pTerm->eOperator */
-    LogEst rCostIdx;
-    LogEst nOutUnadjusted;        /* nOut before IN() and WHERE adjustments */
-    int nIn = 0;
-#ifdef SQLITE_ENABLE_STAT4
-    int nRecValid = pBuilder->nRecValid;
-#endif
-    if( (eOp==WO_ISNULL || (pTerm->wtFlags&TERM_VNULL)!=0)
-     && indexColumnNotNull(pProbe, saved_nEq)
-    ){
-      continue; /* ignore IS [NOT] NULL constraints on NOT NULL columns */
-    }
-    if( pTerm->prereqRight & pNew->maskSelf ) continue;
-
-    /* Do not allow the upper bound of a LIKE optimization range constraint
-    ** to mix with a lower range bound from some other source */
-    if( pTerm->wtFlags & TERM_LIKEOPT && pTerm->eOperator==WO_LT ) continue;
-
-    /* tag-20191211-001:  Do not allow constraints from the WHERE clause to
-    ** be used by the right table of a LEFT JOIN.  Only constraints in the
-    ** ON clause are allowed.  See tag-20191211-002 for the vtab equivalent. */
-    if( (pSrc->fg.jointype & JT_LEFT)!=0
-     && !ExprHasProperty(pTerm->pExpr, EP_FromJoin)
-    ){
-      continue;
-    }
-
-    if( IsUniqueIndex(pProbe) && saved_nEq==pProbe->nKeyCol-1 ){
-      pBuilder->bldFlags |= SQLITE_BLDF_UNIQUE;
-    }else{
-      pBuilder->bldFlags |= SQLITE_BLDF_INDEXED;
-    }
-    pNew->wsFlags = saved_wsFlags;
-    pNew->u.btree.nEq = saved_nEq;
-    pNew->u.btree.nBtm = saved_nBtm;
-    pNew->u.btree.nTop = saved_nTop;
-    pNew->nLTerm = saved_nLTerm;
-    if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */
-    pNew->aLTerm[pNew->nLTerm++] = pTerm;
-    pNew->prereq = (saved_prereq | pTerm->prereqRight) & ~pNew->maskSelf;
-
-    assert( nInMul==0
-        || (pNew->wsFlags & WHERE_COLUMN_NULL)!=0 
-        || (pNew->wsFlags & WHERE_COLUMN_IN)!=0 
-        || (pNew->wsFlags & WHERE_SKIPSCAN)!=0 
-    );
-
-    if( eOp & WO_IN ){
-      Expr *pExpr = pTerm->pExpr;
-      if( ExprHasProperty(pExpr, EP_xIsSelect) ){
-        /* "x IN (SELECT ...)":  TUNING: the SELECT returns 25 rows */
-        int i;
-        nIn = 46;  assert( 46==tdsqlite3LogEst(25) );
-
-        /* The expression may actually be of the form (x, y) IN (SELECT...).
-        ** In this case there is a separate term for each of (x) and (y).
-        ** However, the nIn multiplier should only be applied once, not once
-        ** for each such term. The following loop checks that pTerm is the
-        ** first such term in use, and sets nIn back to 0 if it is not. */
-        for(i=0; i<pNew->nLTerm-1; i++){
-          if( pNew->aLTerm[i] && pNew->aLTerm[i]->pExpr==pExpr ) nIn = 0;
-        }
-      }else if( ALWAYS(pExpr->x.pList && pExpr->x.pList->nExpr) ){
-        /* "x IN (value, value, ...)" */
-        nIn = tdsqlite3LogEst(pExpr->x.pList->nExpr);
-      }
-      if( pProbe->hasStat1 ){
-        LogEst M, logK, safetyMargin;
-        /* Let:
-        **   N = the total number of rows in the table
-        **   K = the number of entries on the RHS of the IN operator
-        **   M = the number of rows in the table that match terms to the 
-        **       to the left in the same index.  If the IN operator is on
-        **       the left-most index column, M==N.
-        **
-        ** Given the definitions above, it is better to omit the IN operator
-        ** from the index lookup and instead do a scan of the M elements,
-        ** testing each scanned row against the IN operator separately, if:
-        **
-        **        M*log(K) < K*log(N)
-        **
-        ** Our estimates for M, K, and N might be inaccurate, so we build in
-        ** a safety margin of 2 (LogEst: 10) that favors using the IN operator
-        ** with the index, as using an index has better worst-case behavior.
-        ** If we do not have real sqlite_stat1 data, always prefer to use
-        ** the index.
-        */
-        M = pProbe->aiRowLogEst[saved_nEq];
-        logK = estLog(nIn);
-        safetyMargin = 10;  /* TUNING: extra weight for indexed IN */
-        if( M + logK + safetyMargin < nIn + rLogSize ){
-          WHERETRACE(0x40,
-            ("Scan preferred over IN operator on column %d of \"%s\" (%d<%d)\n",
-             saved_nEq, pProbe->zName, M+logK+10, nIn+rLogSize));
-          continue;
-        }else{
-          WHERETRACE(0x40,
-            ("IN operator preferred on column %d of \"%s\" (%d>=%d)\n",
-             saved_nEq, pProbe->zName, M+logK+10, nIn+rLogSize));
-        }
-      }
-      pNew->wsFlags |= WHERE_COLUMN_IN;
-    }else if( eOp & (WO_EQ|WO_IS) ){
-      int iCol = pProbe->aiColumn[saved_nEq];
-      pNew->wsFlags |= WHERE_COLUMN_EQ;
-      assert( saved_nEq==pNew->u.btree.nEq );
-      if( iCol==XN_ROWID 
-       || (iCol>=0 && nInMul==0 && saved_nEq==pProbe->nKeyCol-1)
-      ){
-        if( iCol==XN_ROWID || pProbe->uniqNotNull 
-         || (pProbe->nKeyCol==1 && pProbe->onError && eOp==WO_EQ) 
-        ){
-          pNew->wsFlags |= WHERE_ONEROW;
-        }else{
-          pNew->wsFlags |= WHERE_UNQ_WANTED;
-        }
-      }
-    }else if( eOp & WO_ISNULL ){
-      pNew->wsFlags |= WHERE_COLUMN_NULL;
-    }else if( eOp & (WO_GT|WO_GE) ){
-      testcase( eOp & WO_GT );
-      testcase( eOp & WO_GE );
-      pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_BTM_LIMIT;
-      pNew->u.btree.nBtm = whereRangeVectorLen(
-          pParse, pSrc->iCursor, pProbe, saved_nEq, pTerm
-      );
-      pBtm = pTerm;
-      pTop = 0;
-      if( pTerm->wtFlags & TERM_LIKEOPT ){
-        /* Range contraints that come from the LIKE optimization are
-        ** always used in pairs. */
-        pTop = &pTerm[1];
-        assert( (pTop-(pTerm->pWC->a))<pTerm->pWC->nTerm );
-        assert( pTop->wtFlags & TERM_LIKEOPT );
-        assert( pTop->eOperator==WO_LT );
-        if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */
-        pNew->aLTerm[pNew->nLTerm++] = pTop;
-        pNew->wsFlags |= WHERE_TOP_LIMIT;
-        pNew->u.btree.nTop = 1;
-      }
-    }else{
-      assert( eOp & (WO_LT|WO_LE) );
-      testcase( eOp & WO_LT );
-      testcase( eOp & WO_LE );
-      pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_TOP_LIMIT;
-      pNew->u.btree.nTop = whereRangeVectorLen(
-          pParse, pSrc->iCursor, pProbe, saved_nEq, pTerm
-      );
-      pTop = pTerm;
-      pBtm = (pNew->wsFlags & WHERE_BTM_LIMIT)!=0 ?
-                     pNew->aLTerm[pNew->nLTerm-2] : 0;
-    }
-
-    /* At this point pNew->nOut is set to the number of rows expected to
-    ** be visited by the index scan before considering term pTerm, or the
-    ** values of nIn and nInMul. In other words, assuming that all 
-    ** "x IN(...)" terms are replaced with "x = ?". This block updates
-    ** the value of pNew->nOut to account for pTerm (but not nIn/nInMul).  */
-    assert( pNew->nOut==saved_nOut );
-    if( pNew->wsFlags & WHERE_COLUMN_RANGE ){
-      /* Adjust nOut using stat4 data. Or, if there is no stat4
-      ** data, using some other estimate.  */
-      whereRangeScanEst(pParse, pBuilder, pBtm, pTop, pNew);
-    }else{
-      int nEq = ++pNew->u.btree.nEq;
-      assert( eOp & (WO_ISNULL|WO_EQ|WO_IN|WO_IS) );
-
-      assert( pNew->nOut==saved_nOut );
-      if( pTerm->truthProb<=0 && pProbe->aiColumn[saved_nEq]>=0 ){
-        assert( (eOp & WO_IN) || nIn==0 );
-        testcase( eOp & WO_IN );
-        pNew->nOut += pTerm->truthProb;
-        pNew->nOut -= nIn;
-      }else{
-#ifdef SQLITE_ENABLE_STAT4
-        tRowcnt nOut = 0;
-        if( nInMul==0 
-         && pProbe->nSample 
-         && pNew->u.btree.nEq<=pProbe->nSampleCol
-         && ((eOp & WO_IN)==0 || !ExprHasProperty(pTerm->pExpr, EP_xIsSelect))
-         && OptimizationEnabled(db, SQLITE_Stat4)
-        ){
-          Expr *pExpr = pTerm->pExpr;
-          if( (eOp & (WO_EQ|WO_ISNULL|WO_IS))!=0 ){
-            testcase( eOp & WO_EQ );
-            testcase( eOp & WO_IS );
-            testcase( eOp & WO_ISNULL );
-            rc = whereEqualScanEst(pParse, pBuilder, pExpr->pRight, &nOut);
-          }else{
-            rc = whereInScanEst(pParse, pBuilder, pExpr->x.pList, &nOut);
-          }
-          if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
-          if( rc!=SQLITE_OK ) break;          /* Jump out of the pTerm loop */
-          if( nOut ){
-            pNew->nOut = tdsqlite3LogEst(nOut);
-            if( pNew->nOut>saved_nOut ) pNew->nOut = saved_nOut;
-            pNew->nOut -= nIn;
-          }
-        }
-        if( nOut==0 )
-#endif
-        {
-          pNew->nOut += (pProbe->aiRowLogEst[nEq] - pProbe->aiRowLogEst[nEq-1]);
-          if( eOp & WO_ISNULL ){
-            /* TUNING: If there is no likelihood() value, assume that a 
-            ** "col IS NULL" expression matches twice as many rows 
-            ** as (col=?). */
-            pNew->nOut += 10;
-          }
-        }
-      }
-    }
-
-    /* Set rCostIdx to the cost of visiting selected rows in index. Add
-    ** it to pNew->rRun, which is currently set to the cost of the index
-    ** seek only. Then, if this is a non-covering index, add the cost of
-    ** visiting the rows in the main table.  */
-    assert( pSrc->pTab->szTabRow>0 );
-    rCostIdx = pNew->nOut + 1 + (15*pProbe->szIdxRow)/pSrc->pTab->szTabRow;
-    pNew->rRun = tdsqlite3LogEstAdd(rLogSize, rCostIdx);
-    if( (pNew->wsFlags & (WHERE_IDX_ONLY|WHERE_IPK))==0 ){
-      pNew->rRun = tdsqlite3LogEstAdd(pNew->rRun, pNew->nOut + 16);
-    }
-    ApplyCostMultiplier(pNew->rRun, pProbe->pTable->costMult);
-
-    nOutUnadjusted = pNew->nOut;
-    pNew->rRun += nInMul + nIn;
-    pNew->nOut += nInMul + nIn;
-    whereLoopOutputAdjust(pBuilder->pWC, pNew, rSize);
-    rc = whereLoopInsert(pBuilder, pNew);
-
-    if( pNew->wsFlags & WHERE_COLUMN_RANGE ){
-      pNew->nOut = saved_nOut;
-    }else{
-      pNew->nOut = nOutUnadjusted;
-    }
-
-    if( (pNew->wsFlags & WHERE_TOP_LIMIT)==0
-     && pNew->u.btree.nEq<pProbe->nColumn
-    ){
-      whereLoopAddBtreeIndex(pBuilder, pSrc, pProbe, nInMul+nIn);
-    }
-    pNew->nOut = saved_nOut;
-#ifdef SQLITE_ENABLE_STAT4
-    pBuilder->nRecValid = nRecValid;
-#endif
-  }
-  pNew->prereq = saved_prereq;
-  pNew->u.btree.nEq = saved_nEq;
-  pNew->u.btree.nBtm = saved_nBtm;
-  pNew->u.btree.nTop = saved_nTop;
-  pNew->nSkip = saved_nSkip;
-  pNew->wsFlags = saved_wsFlags;
-  pNew->nOut = saved_nOut;
-  pNew->nLTerm = saved_nLTerm;
-
-  /* Consider using a skip-scan if there are no WHERE clause constraints
-  ** available for the left-most terms of the index, and if the average
-  ** number of repeats in the left-most terms is at least 18. 
-  **
-  ** The magic number 18 is selected on the basis that scanning 17 rows
-  ** is almost always quicker than an index seek (even though if the index
-  ** contains fewer than 2^17 rows we assume otherwise in other parts of
-  ** the code). And, even if it is not, it should not be too much slower. 
-  ** On the other hand, the extra seeks could end up being significantly
-  ** more expensive.  */
-  assert( 42==tdsqlite3LogEst(18) );
-  if( saved_nEq==saved_nSkip
-   && saved_nEq+1<pProbe->nKeyCol
-   && saved_nEq==pNew->nLTerm
-   && pProbe->noSkipScan==0
-   && OptimizationEnabled(db, SQLITE_SkipScan)
-   && pProbe->aiRowLogEst[saved_nEq+1]>=42  /* TUNING: Minimum for skip-scan */
-   && (rc = whereLoopResize(db, pNew, pNew->nLTerm+1))==SQLITE_OK
-  ){
-    LogEst nIter;
-    pNew->u.btree.nEq++;
-    pNew->nSkip++;
-    pNew->aLTerm[pNew->nLTerm++] = 0;
-    pNew->wsFlags |= WHERE_SKIPSCAN;
-    nIter = pProbe->aiRowLogEst[saved_nEq] - pProbe->aiRowLogEst[saved_nEq+1];
-    pNew->nOut -= nIter;
-    /* TUNING:  Because uncertainties in the estimates for skip-scan queries,
-    ** add a 1.375 fudge factor to make skip-scan slightly less likely. */
-    nIter += 5;
-    whereLoopAddBtreeIndex(pBuilder, pSrc, pProbe, nIter + nInMul);
-    pNew->nOut = saved_nOut;
-    pNew->u.btree.nEq = saved_nEq;
-    pNew->nSkip = saved_nSkip;
-    pNew->wsFlags = saved_wsFlags;
-  }
-
-  WHERETRACE(0x800, ("END %s.addBtreeIdx(%s), nEq=%d, rc=%d\n",
-                      pProbe->pTable->zName, pProbe->zName, saved_nEq, rc));
-  return rc;
-}
-
-/*
-** Return True if it is possible that pIndex might be useful in
-** implementing the ORDER BY clause in pBuilder.
-**
-** Return False if pBuilder does not contain an ORDER BY clause or
-** if there is no way for pIndex to be useful in implementing that
-** ORDER BY clause.
-*/
-static int indexMightHelpWithOrderBy(
-  WhereLoopBuilder *pBuilder,
-  Index *pIndex,
-  int iCursor
-){
-  ExprList *pOB;
-  ExprList *aColExpr;
-  int ii, jj;
-
-  if( pIndex->bUnordered ) return 0;
-  if( (pOB = pBuilder->pWInfo->pOrderBy)==0 ) return 0;
-  for(ii=0; ii<pOB->nExpr; ii++){
-    Expr *pExpr = tdsqlite3ExprSkipCollateAndLikely(pOB->a[ii].pExpr);
-    if( pExpr->op==TK_COLUMN && pExpr->iTable==iCursor ){
-      if( pExpr->iColumn<0 ) return 1;
-      for(jj=0; jj<pIndex->nKeyCol; jj++){
-        if( pExpr->iColumn==pIndex->aiColumn[jj] ) return 1;
-      }
-    }else if( (aColExpr = pIndex->aColExpr)!=0 ){
-      for(jj=0; jj<pIndex->nKeyCol; jj++){
-        if( pIndex->aiColumn[jj]!=XN_EXPR ) continue;
-        if( tdsqlite3ExprCompareSkip(pExpr,aColExpr->a[jj].pExpr,iCursor)==0 ){
-          return 1;
-        }
-      }
-    }
-  }
-  return 0;
-}
-
-/* Check to see if a partial index with pPartIndexWhere can be used
-** in the current query.  Return true if it can be and false if not.
-*/
-static int whereUsablePartialIndex(
-  int iTab,             /* The table for which we want an index */
-  int isLeft,           /* True if iTab is the right table of a LEFT JOIN */
-  WhereClause *pWC,     /* The WHERE clause of the query */
-  Expr *pWhere          /* The WHERE clause from the partial index */
-){
-  int i;
-  WhereTerm *pTerm;
-  Parse *pParse = pWC->pWInfo->pParse;
-  while( pWhere->op==TK_AND ){
-    if( !whereUsablePartialIndex(iTab,isLeft,pWC,pWhere->pLeft) ) return 0;
-    pWhere = pWhere->pRight;
-  }
-  if( pParse->db->flags & SQLITE_EnableQPSG ) pParse = 0;
-  for(i=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){
-    Expr *pExpr;
-    pExpr = pTerm->pExpr;
-    if( (!ExprHasProperty(pExpr, EP_FromJoin) || pExpr->iRightJoinTable==iTab)
-     && (isLeft==0 || ExprHasProperty(pExpr, EP_FromJoin))
-     && tdsqlite3ExprImpliesExpr(pParse, pExpr, pWhere, iTab) 
-    ){
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** Add all WhereLoop objects for a single table of the join where the table
-** is identified by pBuilder->pNew->iTab.  That table is guaranteed to be
-** a b-tree table, not a virtual table.
-**
-** The costs (WhereLoop.rRun) of the b-tree loops added by this function
-** are calculated as follows:
-**
-** For a full scan, assuming the table (or index) contains nRow rows:
-**
-**     cost = nRow * 3.0                    // full-table scan
-**     cost = nRow * K                      // scan of covering index
-**     cost = nRow * (K+3.0)                // scan of non-covering index
-**
-** where K is a value between 1.1 and 3.0 set based on the relative 
-** estimated average size of the index and table records.
-**
-** For an index scan, where nVisit is the number of index rows visited
-** by the scan, and nSeek is the number of seek operations required on 
-** the index b-tree:
-**
-**     cost = nSeek * (log(nRow) + K * nVisit)          // covering index
-**     cost = nSeek * (log(nRow) + (K+3.0) * nVisit)    // non-covering index
-**
-** Normally, nSeek is 1. nSeek values greater than 1 come about if the 
-** WHERE clause includes "x IN (....)" terms used in place of "x=?". Or when 
-** implicit "x IN (SELECT x FROM tbl)" terms are added for skip-scans.
-**
-** The estimated values (nRow, nVisit, nSeek) often contain a large amount
-** of uncertainty.  For this reason, scoring is designed to pick plans that
-** "do the least harm" if the estimates are inaccurate.  For example, a
-** log(nRow) factor is omitted from a non-covering index scan in order to
-** bias the scoring in favor of using an index, since the worst-case
-** performance of using an index is far better than the worst-case performance
-** of a full table scan.
-*/
-static int whereLoopAddBtree(
-  WhereLoopBuilder *pBuilder, /* WHERE clause information */
-  Bitmask mPrereq             /* Extra prerequesites for using this table */
-){
-  WhereInfo *pWInfo;          /* WHERE analysis context */
-  Index *pProbe;              /* An index we are evaluating */
-  Index sPk;                  /* A fake index object for the primary key */
-  LogEst aiRowEstPk[2];       /* The aiRowLogEst[] value for the sPk index */
-  i16 aiColumnPk = -1;        /* The aColumn[] value for the sPk index */
-  SrcList *pTabList;          /* The FROM clause */
-  struct SrcList_item *pSrc;  /* The FROM clause btree term to add */
-  WhereLoop *pNew;            /* Template WhereLoop object */
-  int rc = SQLITE_OK;         /* Return code */
-  int iSortIdx = 1;           /* Index number */
-  int b;                      /* A boolean value */
-  LogEst rSize;               /* number of rows in the table */
-  LogEst rLogSize;            /* Logarithm of the number of rows in the table */
-  WhereClause *pWC;           /* The parsed WHERE clause */
-  Table *pTab;                /* Table being queried */
-  
-  pNew = pBuilder->pNew;
-  pWInfo = pBuilder->pWInfo;
-  pTabList = pWInfo->pTabList;
-  pSrc = pTabList->a + pNew->iTab;
-  pTab = pSrc->pTab;
-  pWC = pBuilder->pWC;
-  assert( !IsVirtual(pSrc->pTab) );
-
-  if( pSrc->pIBIndex ){
-    /* An INDEXED BY clause specifies a particular index to use */
-    pProbe = pSrc->pIBIndex;
-  }else if( !HasRowid(pTab) ){
-    pProbe = pTab->pIndex;
-  }else{
-    /* There is no INDEXED BY clause.  Create a fake Index object in local
-    ** variable sPk to represent the rowid primary key index.  Make this
-    ** fake index the first in a chain of Index objects with all of the real
-    ** indices to follow */
-    Index *pFirst;                  /* First of real indices on the table */
-    memset(&sPk, 0, sizeof(Index));
-    sPk.nKeyCol = 1;
-    sPk.nColumn = 1;
-    sPk.aiColumn = &aiColumnPk;
-    sPk.aiRowLogEst = aiRowEstPk;
-    sPk.onError = OE_Replace;
-    sPk.pTable = pTab;
-    sPk.szIdxRow = pTab->szTabRow;
-    sPk.idxType = SQLITE_IDXTYPE_IPK;
-    aiRowEstPk[0] = pTab->nRowLogEst;
-    aiRowEstPk[1] = 0;
-    pFirst = pSrc->pTab->pIndex;
-    if( pSrc->fg.notIndexed==0 ){
-      /* The real indices of the table are only considered if the
-      ** NOT INDEXED qualifier is omitted from the FROM clause */
-      sPk.pNext = pFirst;
-    }
-    pProbe = &sPk;
-  }
-  rSize = pTab->nRowLogEst;
-  rLogSize = estLog(rSize);
-
-#ifndef SQLITE_OMIT_AUTOMATIC_INDEX
-  /* Automatic indexes */
-  if( !pBuilder->pOrSet      /* Not part of an OR optimization */
-   && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0
-   && (pWInfo->pParse->db->flags & SQLITE_AutoIndex)!=0
-   && pSrc->pIBIndex==0      /* Has no INDEXED BY clause */
-   && !pSrc->fg.notIndexed   /* Has no NOT INDEXED clause */
-   && HasRowid(pTab)         /* Not WITHOUT ROWID table. (FIXME: Why not?) */
-   && !pSrc->fg.isCorrelated /* Not a correlated subquery */
-   && !pSrc->fg.isRecursive  /* Not a recursive common table expression. */
-  ){
-    /* Generate auto-index WhereLoops */
-    WhereTerm *pTerm;
-    WhereTerm *pWCEnd = pWC->a + pWC->nTerm;
-    for(pTerm=pWC->a; rc==SQLITE_OK && pTerm<pWCEnd; pTerm++){
-      if( pTerm->prereqRight & pNew->maskSelf ) continue;
-      if( termCanDriveIndex(pTerm, pSrc, 0) ){
-        pNew->u.btree.nEq = 1;
-        pNew->nSkip = 0;
-        pNew->u.btree.pIndex = 0;
-        pNew->nLTerm = 1;
-        pNew->aLTerm[0] = pTerm;
-        /* TUNING: One-time cost for computing the automatic index is
-        ** estimated to be X*N*log2(N) where N is the number of rows in
-        ** the table being indexed and where X is 7 (LogEst=28) for normal
-        ** tables or 0.5 (LogEst=-10) for views and subqueries.  The value
-        ** of X is smaller for views and subqueries so that the query planner
-        ** will be more aggressive about generating automatic indexes for
-        ** those objects, since there is no opportunity to add schema
-        ** indexes on subqueries and views. */
-        pNew->rSetup = rLogSize + rSize;
-        if( pTab->pSelect==0 && (pTab->tabFlags & TF_Ephemeral)==0 ){
-          pNew->rSetup += 28;
-        }else{
-          pNew->rSetup -= 10;
-        }
-        ApplyCostMultiplier(pNew->rSetup, pTab->costMult);
-        if( pNew->rSetup<0 ) pNew->rSetup = 0;
-        /* TUNING: Each index lookup yields 20 rows in the table.  This
-        ** is more than the usual guess of 10 rows, since we have no way
-        ** of knowing how selective the index will ultimately be.  It would
-        ** not be unreasonable to make this value much larger. */
-        pNew->nOut = 43;  assert( 43==tdsqlite3LogEst(20) );
-        pNew->rRun = tdsqlite3LogEstAdd(rLogSize,pNew->nOut);
-        pNew->wsFlags = WHERE_AUTO_INDEX;
-        pNew->prereq = mPrereq | pTerm->prereqRight;
-        rc = whereLoopInsert(pBuilder, pNew);
-      }
-    }
-  }
-#endif /* SQLITE_OMIT_AUTOMATIC_INDEX */
-
-  /* Loop over all indices. If there was an INDEXED BY clause, then only 
-  ** consider index pProbe.  */
-  for(; rc==SQLITE_OK && pProbe; 
-      pProbe=(pSrc->pIBIndex ? 0 : pProbe->pNext), iSortIdx++
-  ){
-    int isLeft = (pSrc->fg.jointype & JT_OUTER)!=0;
-    if( pProbe->pPartIdxWhere!=0
-     && !whereUsablePartialIndex(pSrc->iCursor, isLeft, pWC,
-                                 pProbe->pPartIdxWhere)
-    ){
-      testcase( pNew->iTab!=pSrc->iCursor );  /* See ticket [98d973b8f5] */
-      continue;  /* Partial index inappropriate for this query */
-    }
-    if( pProbe->bNoQuery ) continue;
-    rSize = pProbe->aiRowLogEst[0];
-    pNew->u.btree.nEq = 0;
-    pNew->u.btree.nBtm = 0;
-    pNew->u.btree.nTop = 0;
-    pNew->nSkip = 0;
-    pNew->nLTerm = 0;
-    pNew->iSortIdx = 0;
-    pNew->rSetup = 0;
-    pNew->prereq = mPrereq;
-    pNew->nOut = rSize;
-    pNew->u.btree.pIndex = pProbe;
-    b = indexMightHelpWithOrderBy(pBuilder, pProbe, pSrc->iCursor);
-    /* The ONEPASS_DESIRED flags never occurs together with ORDER BY */
-    assert( (pWInfo->wctrlFlags & WHERE_ONEPASS_DESIRED)==0 || b==0 );
-    if( pProbe->idxType==SQLITE_IDXTYPE_IPK ){
-      /* Integer primary key index */
-      pNew->wsFlags = WHERE_IPK;
-
-      /* Full table scan */
-      pNew->iSortIdx = b ? iSortIdx : 0;
-      /* TUNING: Cost of full table scan is (N*3.0). */
-      pNew->rRun = rSize + 16;
-      ApplyCostMultiplier(pNew->rRun, pTab->costMult);
-      whereLoopOutputAdjust(pWC, pNew, rSize);
-      rc = whereLoopInsert(pBuilder, pNew);
-      pNew->nOut = rSize;
-      if( rc ) break;
-    }else{
-      Bitmask m;
-      if( pProbe->isCovering ){
-        pNew->wsFlags = WHERE_IDX_ONLY | WHERE_INDEXED;
-        m = 0;
-      }else{
-        m = pSrc->colUsed & pProbe->colNotIdxed;
-        pNew->wsFlags = (m==0) ? (WHERE_IDX_ONLY|WHERE_INDEXED) : WHERE_INDEXED;
-      }
-
-      /* Full scan via index */
-      if( b
-       || !HasRowid(pTab)
-       || pProbe->pPartIdxWhere!=0
-       || ( m==0
-         && pProbe->bUnordered==0
-         && (pProbe->szIdxRow<pTab->szTabRow)
-         && (pWInfo->wctrlFlags & WHERE_ONEPASS_DESIRED)==0
-         && tdsqlite3GlobalConfig.bUseCis
-         && OptimizationEnabled(pWInfo->pParse->db, SQLITE_CoverIdxScan)
-          )
-      ){
-        pNew->iSortIdx = b ? iSortIdx : 0;
-
-        /* The cost of visiting the index rows is N*K, where K is
-        ** between 1.1 and 3.0, depending on the relative sizes of the
-        ** index and table rows. */
-        pNew->rRun = rSize + 1 + (15*pProbe->szIdxRow)/pTab->szTabRow;
-        if( m!=0 ){
-          /* If this is a non-covering index scan, add in the cost of
-          ** doing table lookups.  The cost will be 3x the number of
-          ** lookups.  Take into account WHERE clause terms that can be
-          ** satisfied using just the index, and that do not require a
-          ** table lookup. */
-          LogEst nLookup = rSize + 16;  /* Base cost:  N*3 */
-          int ii;
-          int iCur = pSrc->iCursor;
-          WhereClause *pWC2 = &pWInfo->sWC;
-          for(ii=0; ii<pWC2->nTerm; ii++){
-            WhereTerm *pTerm = &pWC2->a[ii];
-            if( !tdsqlite3ExprCoveredByIndex(pTerm->pExpr, iCur, pProbe) ){
-              break;
-            }
-            /* pTerm can be evaluated using just the index.  So reduce
-            ** the expected number of table lookups accordingly */
-            if( pTerm->truthProb<=0 ){
-              nLookup += pTerm->truthProb;
-            }else{
-              nLookup--;
-              if( pTerm->eOperator & (WO_EQ|WO_IS) ) nLookup -= 19;
-            }
-          }
-          
-          pNew->rRun = tdsqlite3LogEstAdd(pNew->rRun, nLookup);
-        }
-        ApplyCostMultiplier(pNew->rRun, pTab->costMult);
-        whereLoopOutputAdjust(pWC, pNew, rSize);
-        rc = whereLoopInsert(pBuilder, pNew);
-        pNew->nOut = rSize;
-        if( rc ) break;
-      }
-    }
-
-    pBuilder->bldFlags = 0;
-    rc = whereLoopAddBtreeIndex(pBuilder, pSrc, pProbe, 0);
-    if( pBuilder->bldFlags==SQLITE_BLDF_INDEXED ){
-      /* If a non-unique index is used, or if a prefix of the key for
-      ** unique index is used (making the index functionally non-unique)
-      ** then the sqlite_stat1 data becomes important for scoring the
-      ** plan */
-      pTab->tabFlags |= TF_StatsUsed;
-    }
-#ifdef SQLITE_ENABLE_STAT4
-    tdsqlite3Stat4ProbeFree(pBuilder->pRec);
-    pBuilder->nRecValid = 0;
-    pBuilder->pRec = 0;
-#endif
-  }
-  return rc;
-}
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-
-/*
-** Argument pIdxInfo is already populated with all constraints that may
-** be used by the virtual table identified by pBuilder->pNew->iTab. This
-** function marks a subset of those constraints usable, invokes the
-** xBestIndex method and adds the returned plan to pBuilder.
-**
-** A constraint is marked usable if:
-**
-**   * Argument mUsable indicates that its prerequisites are available, and
-**
-**   * It is not one of the operators specified in the mExclude mask passed
-**     as the fourth argument (which in practice is either WO_IN or 0).
-**
-** Argument mPrereq is a mask of tables that must be scanned before the
-** virtual table in question. These are added to the plans prerequisites
-** before it is added to pBuilder.
-**
-** Output parameter *pbIn is set to true if the plan added to pBuilder
-** uses one or more WO_IN terms, or false otherwise.
-*/
-static int whereLoopAddVirtualOne(
-  WhereLoopBuilder *pBuilder,
-  Bitmask mPrereq,                /* Mask of tables that must be used. */
-  Bitmask mUsable,                /* Mask of usable tables */
-  u16 mExclude,                   /* Exclude terms using these operators */
-  tdsqlite3_index_info *pIdxInfo,   /* Populated object for xBestIndex */
-  u16 mNoOmit,                    /* Do not omit these constraints */
-  int *pbIn                       /* OUT: True if plan uses an IN(...) op */
-){
-  WhereClause *pWC = pBuilder->pWC;
-  struct tdsqlite3_index_constraint *pIdxCons;
-  struct tdsqlite3_index_constraint_usage *pUsage = pIdxInfo->aConstraintUsage;
-  int i;
-  int mxTerm;
-  int rc = SQLITE_OK;
-  WhereLoop *pNew = pBuilder->pNew;
-  Parse *pParse = pBuilder->pWInfo->pParse;
-  struct SrcList_item *pSrc = &pBuilder->pWInfo->pTabList->a[pNew->iTab];
-  int nConstraint = pIdxInfo->nConstraint;
-
-  assert( (mUsable & mPrereq)==mPrereq );
-  *pbIn = 0;
-  pNew->prereq = mPrereq;
-
-  /* Set the usable flag on the subset of constraints identified by 
-  ** arguments mUsable and mExclude. */
-  pIdxCons = *(struct tdsqlite3_index_constraint**)&pIdxInfo->aConstraint;
-  for(i=0; i<nConstraint; i++, pIdxCons++){
-    WhereTerm *pTerm = &pWC->a[pIdxCons->iTermOffset];
-    pIdxCons->usable = 0;
-    if( (pTerm->prereqRight & mUsable)==pTerm->prereqRight 
-     && (pTerm->eOperator & mExclude)==0
-    ){
-      pIdxCons->usable = 1;
-    }
-  }
-
-  /* Initialize the output fields of the tdsqlite3_index_info structure */
-  memset(pUsage, 0, sizeof(pUsage[0])*nConstraint);
-  assert( pIdxInfo->needToFreeIdxStr==0 );
-  pIdxInfo->idxStr = 0;
-  pIdxInfo->idxNum = 0;
-  pIdxInfo->orderByConsumed = 0;
-  pIdxInfo->estimatedCost = SQLITE_BIG_DBL / (double)2;
-  pIdxInfo->estimatedRows = 25;
-  pIdxInfo->idxFlags = 0;
-  pIdxInfo->colUsed = (tdsqlite3_int64)pSrc->colUsed;
-
-  /* Invoke the virtual table xBestIndex() method */
-  rc = vtabBestIndex(pParse, pSrc->pTab, pIdxInfo);
-  if( rc ){
-    if( rc==SQLITE_CONSTRAINT ){
-      /* If the xBestIndex method returns SQLITE_CONSTRAINT, that means
-      ** that the particular combination of parameters provided is unusable.
-      ** Make no entries in the loop table.
-      */
-      WHERETRACE(0xffff, ("  ^^^^--- non-viable plan rejected!\n"));
-      return SQLITE_OK;
-    }
-    return rc;
-  }
-
-  mxTerm = -1;
-  assert( pNew->nLSlot>=nConstraint );
-  for(i=0; i<nConstraint; i++) pNew->aLTerm[i] = 0;
-  pNew->u.vtab.omitMask = 0;
-  pIdxCons = *(struct tdsqlite3_index_constraint**)&pIdxInfo->aConstraint;
-  for(i=0; i<nConstraint; i++, pIdxCons++){
-    int iTerm;
-    if( (iTerm = pUsage[i].argvIndex - 1)>=0 ){
-      WhereTerm *pTerm;
-      int j = pIdxCons->iTermOffset;
-      if( iTerm>=nConstraint
-       || j<0
-       || j>=pWC->nTerm
-       || pNew->aLTerm[iTerm]!=0
-       || pIdxCons->usable==0
-      ){
-        tdsqlite3ErrorMsg(pParse,"%s.xBestIndex malfunction",pSrc->pTab->zName);
-        testcase( pIdxInfo->needToFreeIdxStr );
-        return SQLITE_ERROR;
-      }
-      testcase( iTerm==nConstraint-1 );
-      testcase( j==0 );
-      testcase( j==pWC->nTerm-1 );
-      pTerm = &pWC->a[j];
-      pNew->prereq |= pTerm->prereqRight;
-      assert( iTerm<pNew->nLSlot );
-      pNew->aLTerm[iTerm] = pTerm;
-      if( iTerm>mxTerm ) mxTerm = iTerm;
-      testcase( iTerm==15 );
-      testcase( iTerm==16 );
-      if( pUsage[i].omit ){
-        if( i<16 && ((1<<i)&mNoOmit)==0 ){
-          testcase( i!=iTerm );
-          pNew->u.vtab.omitMask |= 1<<iTerm;
-        }else{
-          testcase( i!=iTerm );
-        }
-      }
-      if( (pTerm->eOperator & WO_IN)!=0 ){
-        /* A virtual table that is constrained by an IN clause may not
-        ** consume the ORDER BY clause because (1) the order of IN terms
-        ** is not necessarily related to the order of output terms and
-        ** (2) Multiple outputs from a single IN value will not merge
-        ** together.  */
-        pIdxInfo->orderByConsumed = 0;
-        pIdxInfo->idxFlags &= ~SQLITE_INDEX_SCAN_UNIQUE;
-        *pbIn = 1; assert( (mExclude & WO_IN)==0 );
-      }
-    }
-  }
-
-  pNew->nLTerm = mxTerm+1;
-  for(i=0; i<=mxTerm; i++){
-    if( pNew->aLTerm[i]==0 ){
-      /* The non-zero argvIdx values must be contiguous.  Raise an
-      ** error if they are not */
-      tdsqlite3ErrorMsg(pParse,"%s.xBestIndex malfunction",pSrc->pTab->zName);
-      testcase( pIdxInfo->needToFreeIdxStr );
-      return SQLITE_ERROR;
-    }
-  }
-  assert( pNew->nLTerm<=pNew->nLSlot );
-  pNew->u.vtab.idxNum = pIdxInfo->idxNum;
-  pNew->u.vtab.needFree = pIdxInfo->needToFreeIdxStr;
-  pIdxInfo->needToFreeIdxStr = 0;
-  pNew->u.vtab.idxStr = pIdxInfo->idxStr;
-  pNew->u.vtab.isOrdered = (i8)(pIdxInfo->orderByConsumed ?
-      pIdxInfo->nOrderBy : 0);
-  pNew->rSetup = 0;
-  pNew->rRun = tdsqlite3LogEstFromDouble(pIdxInfo->estimatedCost);
-  pNew->nOut = tdsqlite3LogEst(pIdxInfo->estimatedRows);
-
-  /* Set the WHERE_ONEROW flag if the xBestIndex() method indicated
-  ** that the scan will visit at most one row. Clear it otherwise. */
-  if( pIdxInfo->idxFlags & SQLITE_INDEX_SCAN_UNIQUE ){
-    pNew->wsFlags |= WHERE_ONEROW;
-  }else{
-    pNew->wsFlags &= ~WHERE_ONEROW;
-  }
-  rc = whereLoopInsert(pBuilder, pNew);
-  if( pNew->u.vtab.needFree ){
-    tdsqlite3_free(pNew->u.vtab.idxStr);
-    pNew->u.vtab.needFree = 0;
-  }
-  WHERETRACE(0xffff, ("  bIn=%d prereqIn=%04llx prereqOut=%04llx\n",
-                      *pbIn, (tdsqlite3_uint64)mPrereq,
-                      (tdsqlite3_uint64)(pNew->prereq & ~mPrereq)));
-
-  return rc;
-}
-
-/*
-** If this function is invoked from within an xBestIndex() callback, it
-** returns a pointer to a buffer containing the name of the collation
-** sequence associated with element iCons of the tdsqlite3_index_info.aConstraint
-** array. Or, if iCons is out of range or there is no active xBestIndex
-** call, return NULL.
-*/
-SQLITE_API const char *tdsqlite3_vtab_collation(tdsqlite3_index_info *pIdxInfo, int iCons){
-  HiddenIndexInfo *pHidden = (HiddenIndexInfo*)&pIdxInfo[1];
-  const char *zRet = 0;
-  if( iCons>=0 && iCons<pIdxInfo->nConstraint ){
-    CollSeq *pC = 0;
-    int iTerm = pIdxInfo->aConstraint[iCons].iTermOffset;
-    Expr *pX = pHidden->pWC->a[iTerm].pExpr;
-    if( pX->pLeft ){
-      pC = tdsqlite3ExprCompareCollSeq(pHidden->pParse, pX);
-    }
-    zRet = (pC ? pC->zName : tdsqlite3StrBINARY);
-  }
-  return zRet;
-}
-
-/*
-** Add all WhereLoop objects for a table of the join identified by
-** pBuilder->pNew->iTab.  That table is guaranteed to be a virtual table.
-**
-** If there are no LEFT or CROSS JOIN joins in the query, both mPrereq and
-** mUnusable are set to 0. Otherwise, mPrereq is a mask of all FROM clause
-** entries that occur before the virtual table in the FROM clause and are
-** separated from it by at least one LEFT or CROSS JOIN. Similarly, the
-** mUnusable mask contains all FROM clause entries that occur after the
-** virtual table and are separated from it by at least one LEFT or 
-** CROSS JOIN. 
-**
-** For example, if the query were:
-**
-**   ... FROM t1, t2 LEFT JOIN t3, t4, vt CROSS JOIN t5, t6;
-**
-** then mPrereq corresponds to (t1, t2) and mUnusable to (t5, t6).
-**
-** All the tables in mPrereq must be scanned before the current virtual 
-** table. So any terms for which all prerequisites are satisfied by 
-** mPrereq may be specified as "usable" in all calls to xBestIndex. 
-** Conversely, all tables in mUnusable must be scanned after the current
-** virtual table, so any terms for which the prerequisites overlap with
-** mUnusable should always be configured as "not-usable" for xBestIndex.
-*/
-static int whereLoopAddVirtual(
-  WhereLoopBuilder *pBuilder,  /* WHERE clause information */
-  Bitmask mPrereq,             /* Tables that must be scanned before this one */
-  Bitmask mUnusable            /* Tables that must be scanned after this one */
-){
-  int rc = SQLITE_OK;          /* Return code */
-  WhereInfo *pWInfo;           /* WHERE analysis context */
-  Parse *pParse;               /* The parsing context */
-  WhereClause *pWC;            /* The WHERE clause */
-  struct SrcList_item *pSrc;   /* The FROM clause term to search */
-  tdsqlite3_index_info *p;       /* Object to pass to xBestIndex() */
-  int nConstraint;             /* Number of constraints in p */
-  int bIn;                     /* True if plan uses IN(...) operator */
-  WhereLoop *pNew;
-  Bitmask mBest;               /* Tables used by best possible plan */
-  u16 mNoOmit;
-
-  assert( (mPrereq & mUnusable)==0 );
-  pWInfo = pBuilder->pWInfo;
-  pParse = pWInfo->pParse;
-  pWC = pBuilder->pWC;
-  pNew = pBuilder->pNew;
-  pSrc = &pWInfo->pTabList->a[pNew->iTab];
-  assert( IsVirtual(pSrc->pTab) );
-  p = allocateIndexInfo(pParse, pWC, mUnusable, pSrc, pBuilder->pOrderBy, 
-      &mNoOmit);
-  if( p==0 ) return SQLITE_NOMEM_BKPT;
-  pNew->rSetup = 0;
-  pNew->wsFlags = WHERE_VIRTUALTABLE;
-  pNew->nLTerm = 0;
-  pNew->u.vtab.needFree = 0;
-  nConstraint = p->nConstraint;
-  if( whereLoopResize(pParse->db, pNew, nConstraint) ){
-    tdsqlite3DbFree(pParse->db, p);
-    return SQLITE_NOMEM_BKPT;
-  }
-
-  /* First call xBestIndex() with all constraints usable. */
-  WHERETRACE(0x800, ("BEGIN %s.addVirtual()\n", pSrc->pTab->zName));
-  WHERETRACE(0x40, ("  VirtualOne: all usable\n"));
-  rc = whereLoopAddVirtualOne(pBuilder, mPrereq, ALLBITS, 0, p, mNoOmit, &bIn);
-
-  /* If the call to xBestIndex() with all terms enabled produced a plan
-  ** that does not require any source tables (IOW: a plan with mBest==0)
-  ** and does not use an IN(...) operator, then there is no point in making 
-  ** any further calls to xBestIndex() since they will all return the same
-  ** result (if the xBestIndex() implementation is sane). */
-  if( rc==SQLITE_OK && ((mBest = (pNew->prereq & ~mPrereq))!=0 || bIn) ){
-    int seenZero = 0;             /* True if a plan with no prereqs seen */
-    int seenZeroNoIN = 0;         /* Plan with no prereqs and no IN(...) seen */
-    Bitmask mPrev = 0;
-    Bitmask mBestNoIn = 0;
-
-    /* If the plan produced by the earlier call uses an IN(...) term, call
-    ** xBestIndex again, this time with IN(...) terms disabled. */
-    if( bIn ){
-      WHERETRACE(0x40, ("  VirtualOne: all usable w/o IN\n"));
-      rc = whereLoopAddVirtualOne(
-          pBuilder, mPrereq, ALLBITS, WO_IN, p, mNoOmit, &bIn);
-      assert( bIn==0 );
-      mBestNoIn = pNew->prereq & ~mPrereq;
-      if( mBestNoIn==0 ){
-        seenZero = 1;
-        seenZeroNoIN = 1;
-      }
-    }
-
-    /* Call xBestIndex once for each distinct value of (prereqRight & ~mPrereq) 
-    ** in the set of terms that apply to the current virtual table.  */
-    while( rc==SQLITE_OK ){
-      int i;
-      Bitmask mNext = ALLBITS;
-      assert( mNext>0 );
-      for(i=0; i<nConstraint; i++){
-        Bitmask mThis = (
-            pWC->a[p->aConstraint[i].iTermOffset].prereqRight & ~mPrereq
-        );
-        if( mThis>mPrev && mThis<mNext ) mNext = mThis;
-      }
-      mPrev = mNext;
-      if( mNext==ALLBITS ) break;
-      if( mNext==mBest || mNext==mBestNoIn ) continue;
-      WHERETRACE(0x40, ("  VirtualOne: mPrev=%04llx mNext=%04llx\n",
-                       (tdsqlite3_uint64)mPrev, (tdsqlite3_uint64)mNext));
-      rc = whereLoopAddVirtualOne(
-          pBuilder, mPrereq, mNext|mPrereq, 0, p, mNoOmit, &bIn);
-      if( pNew->prereq==mPrereq ){
-        seenZero = 1;
-        if( bIn==0 ) seenZeroNoIN = 1;
-      }
-    }
-
-    /* If the calls to xBestIndex() in the above loop did not find a plan
-    ** that requires no source tables at all (i.e. one guaranteed to be
-    ** usable), make a call here with all source tables disabled */
-    if( rc==SQLITE_OK && seenZero==0 ){
-      WHERETRACE(0x40, ("  VirtualOne: all disabled\n"));
-      rc = whereLoopAddVirtualOne(
-          pBuilder, mPrereq, mPrereq, 0, p, mNoOmit, &bIn);
-      if( bIn==0 ) seenZeroNoIN = 1;
-    }
-
-    /* If the calls to xBestIndex() have so far failed to find a plan
-    ** that requires no source tables at all and does not use an IN(...)
-    ** operator, make a final call to obtain one here.  */
-    if( rc==SQLITE_OK && seenZeroNoIN==0 ){
-      WHERETRACE(0x40, ("  VirtualOne: all disabled and w/o IN\n"));
-      rc = whereLoopAddVirtualOne(
-          pBuilder, mPrereq, mPrereq, WO_IN, p, mNoOmit, &bIn);
-    }
-  }
-
-  if( p->needToFreeIdxStr ) tdsqlite3_free(p->idxStr);
-  tdsqlite3DbFreeNN(pParse->db, p);
-  WHERETRACE(0x800, ("END %s.addVirtual(), rc=%d\n", pSrc->pTab->zName, rc));
-  return rc;
-}
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-/*
-** Add WhereLoop entries to handle OR terms.  This works for either
-** btrees or virtual tables.
-*/
-static int whereLoopAddOr(
-  WhereLoopBuilder *pBuilder, 
-  Bitmask mPrereq, 
-  Bitmask mUnusable
-){
-  WhereInfo *pWInfo = pBuilder->pWInfo;
-  WhereClause *pWC;
-  WhereLoop *pNew;
-  WhereTerm *pTerm, *pWCEnd;
-  int rc = SQLITE_OK;
-  int iCur;
-  WhereClause tempWC;
-  WhereLoopBuilder sSubBuild;
-  WhereOrSet sSum, sCur;
-  struct SrcList_item *pItem;
-  
-  pWC = pBuilder->pWC;
-  pWCEnd = pWC->a + pWC->nTerm;
-  pNew = pBuilder->pNew;
-  memset(&sSum, 0, sizeof(sSum));
-  pItem = pWInfo->pTabList->a + pNew->iTab;
-  iCur = pItem->iCursor;
-
-  for(pTerm=pWC->a; pTerm<pWCEnd && rc==SQLITE_OK; pTerm++){
-    if( (pTerm->eOperator & WO_OR)!=0
-     && (pTerm->u.pOrInfo->indexable & pNew->maskSelf)!=0 
-    ){
-      WhereClause * const pOrWC = &pTerm->u.pOrInfo->wc;
-      WhereTerm * const pOrWCEnd = &pOrWC->a[pOrWC->nTerm];
-      WhereTerm *pOrTerm;
-      int once = 1;
-      int i, j;
-    
-      sSubBuild = *pBuilder;
-      sSubBuild.pOrderBy = 0;
-      sSubBuild.pOrSet = &sCur;
-
-      WHERETRACE(0x200, ("Begin processing OR-clause %p\n", pTerm));
-      for(pOrTerm=pOrWC->a; pOrTerm<pOrWCEnd; pOrTerm++){
-        if( (pOrTerm->eOperator & WO_AND)!=0 ){
-          sSubBuild.pWC = &pOrTerm->u.pAndInfo->wc;
-        }else if( pOrTerm->leftCursor==iCur ){
-          tempWC.pWInfo = pWC->pWInfo;
-          tempWC.pOuter = pWC;
-          tempWC.op = TK_AND;
-          tempWC.nTerm = 1;
-          tempWC.a = pOrTerm;
-          sSubBuild.pWC = &tempWC;
-        }else{
-          continue;
-        }
-        sCur.n = 0;
-#ifdef WHERETRACE_ENABLED
-        WHERETRACE(0x200, ("OR-term %d of %p has %d subterms:\n", 
-                   (int)(pOrTerm-pOrWC->a), pTerm, sSubBuild.pWC->nTerm));
-        if( tdsqlite3WhereTrace & 0x400 ){
-          tdsqlite3WhereClausePrint(sSubBuild.pWC);
-        }
-#endif
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-        if( IsVirtual(pItem->pTab) ){
-          rc = whereLoopAddVirtual(&sSubBuild, mPrereq, mUnusable);
-        }else
-#endif
-        {
-          rc = whereLoopAddBtree(&sSubBuild, mPrereq);
-        }
-        if( rc==SQLITE_OK ){
-          rc = whereLoopAddOr(&sSubBuild, mPrereq, mUnusable);
-        }
-        assert( rc==SQLITE_OK || rc==SQLITE_DONE || sCur.n==0 );
-        testcase( rc==SQLITE_DONE );
-        if( sCur.n==0 ){
-          sSum.n = 0;
-          break;
-        }else if( once ){
-          whereOrMove(&sSum, &sCur);
-          once = 0;
-        }else{
-          WhereOrSet sPrev;
-          whereOrMove(&sPrev, &sSum);
-          sSum.n = 0;
-          for(i=0; i<sPrev.n; i++){
-            for(j=0; j<sCur.n; j++){
-              whereOrInsert(&sSum, sPrev.a[i].prereq | sCur.a[j].prereq,
-                            tdsqlite3LogEstAdd(sPrev.a[i].rRun, sCur.a[j].rRun),
-                            tdsqlite3LogEstAdd(sPrev.a[i].nOut, sCur.a[j].nOut));
-            }
-          }
-        }
-      }
-      pNew->nLTerm = 1;
-      pNew->aLTerm[0] = pTerm;
-      pNew->wsFlags = WHERE_MULTI_OR;
-      pNew->rSetup = 0;
-      pNew->iSortIdx = 0;
-      memset(&pNew->u, 0, sizeof(pNew->u));
-      for(i=0; rc==SQLITE_OK && i<sSum.n; i++){
-        /* TUNING: Currently sSum.a[i].rRun is set to the sum of the costs
-        ** of all sub-scans required by the OR-scan. However, due to rounding
-        ** errors, it may be that the cost of the OR-scan is equal to its
-        ** most expensive sub-scan. Add the smallest possible penalty 
-        ** (equivalent to multiplying the cost by 1.07) to ensure that 
-        ** this does not happen. Otherwise, for WHERE clauses such as the
-        ** following where there is an index on "y":
-        **
-        **     WHERE likelihood(x=?, 0.99) OR y=?
-        **
-        ** the planner may elect to "OR" together a full-table scan and an
-        ** index lookup. And other similarly odd results.  */
-        pNew->rRun = sSum.a[i].rRun + 1;
-        pNew->nOut = sSum.a[i].nOut;
-        pNew->prereq = sSum.a[i].prereq;
-        rc = whereLoopInsert(pBuilder, pNew);
-      }
-      WHERETRACE(0x200, ("End processing OR-clause %p\n", pTerm));
-    }
-  }
-  return rc;
-}
-
-/*
-** Add all WhereLoop objects for all tables 
-*/
-static int whereLoopAddAll(WhereLoopBuilder *pBuilder){
-  WhereInfo *pWInfo = pBuilder->pWInfo;
-  Bitmask mPrereq = 0;
-  Bitmask mPrior = 0;
-  int iTab;
-  SrcList *pTabList = pWInfo->pTabList;
-  struct SrcList_item *pItem;
-  struct SrcList_item *pEnd = &pTabList->a[pWInfo->nLevel];
-  tdsqlite3 *db = pWInfo->pParse->db;
-  int rc = SQLITE_OK;
-  WhereLoop *pNew;
-  u8 priorJointype = 0;
-
-  /* Loop over the tables in the join, from left to right */
-  pNew = pBuilder->pNew;
-  whereLoopInit(pNew);
-  pBuilder->iPlanLimit = SQLITE_QUERY_PLANNER_LIMIT;
-  for(iTab=0, pItem=pTabList->a; pItem<pEnd; iTab++, pItem++){
-    Bitmask mUnusable = 0;
-    pNew->iTab = iTab;
-    pBuilder->iPlanLimit += SQLITE_QUERY_PLANNER_LIMIT_INCR;
-    pNew->maskSelf = tdsqlite3WhereGetMask(&pWInfo->sMaskSet, pItem->iCursor);
-    if( ((pItem->fg.jointype|priorJointype) & (JT_LEFT|JT_CROSS))!=0 ){
-      /* This condition is true when pItem is the FROM clause term on the
-      ** right-hand-side of a LEFT or CROSS JOIN.  */
-      mPrereq = mPrior;
-    }
-    priorJointype = pItem->fg.jointype;
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    if( IsVirtual(pItem->pTab) ){
-      struct SrcList_item *p;
-      for(p=&pItem[1]; p<pEnd; p++){
-        if( mUnusable || (p->fg.jointype & (JT_LEFT|JT_CROSS)) ){
-          mUnusable |= tdsqlite3WhereGetMask(&pWInfo->sMaskSet, p->iCursor);
-        }
-      }
-      rc = whereLoopAddVirtual(pBuilder, mPrereq, mUnusable);
-    }else
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-    {
-      rc = whereLoopAddBtree(pBuilder, mPrereq);
-    }
-    if( rc==SQLITE_OK && pBuilder->pWC->hasOr ){
-      rc = whereLoopAddOr(pBuilder, mPrereq, mUnusable);
-    }
-    mPrior |= pNew->maskSelf;
-    if( rc || db->mallocFailed ){
-      if( rc==SQLITE_DONE ){
-        /* We hit the query planner search limit set by iPlanLimit */
-        tdsqlite3_log(SQLITE_WARNING, "abbreviated query algorithm search");
-        rc = SQLITE_OK;
-      }else{
-        break;
-      }
-    }
-  }
-
-  whereLoopClear(db, pNew);
-  return rc;
-}
-
-/*
-** Examine a WherePath (with the addition of the extra WhereLoop of the 6th
-** parameters) to see if it outputs rows in the requested ORDER BY
-** (or GROUP BY) without requiring a separate sort operation.  Return N:
-** 
-**   N>0:   N terms of the ORDER BY clause are satisfied
-**   N==0:  No terms of the ORDER BY clause are satisfied
-**   N<0:   Unknown yet how many terms of ORDER BY might be satisfied.   
-**
-** Note that processing for WHERE_GROUPBY and WHERE_DISTINCTBY is not as
-** strict.  With GROUP BY and DISTINCT the only requirement is that
-** equivalent rows appear immediately adjacent to one another.  GROUP BY
-** and DISTINCT do not require rows to appear in any particular order as long
-** as equivalent rows are grouped together.  Thus for GROUP BY and DISTINCT
-** the pOrderBy terms can be matched in any order.  With ORDER BY, the 
-** pOrderBy terms must be matched in strict left-to-right order.
-*/
-static i8 wherePathSatisfiesOrderBy(
-  WhereInfo *pWInfo,    /* The WHERE clause */
-  ExprList *pOrderBy,   /* ORDER BY or GROUP BY or DISTINCT clause to check */
-  WherePath *pPath,     /* The WherePath to check */
-  u16 wctrlFlags,       /* WHERE_GROUPBY or _DISTINCTBY or _ORDERBY_LIMIT */
-  u16 nLoop,            /* Number of entries in pPath->aLoop[] */
-  WhereLoop *pLast,     /* Add this WhereLoop to the end of pPath->aLoop[] */
-  Bitmask *pRevMask     /* OUT: Mask of WhereLoops to run in reverse order */
-){
-  u8 revSet;            /* True if rev is known */
-  u8 rev;               /* Composite sort order */
-  u8 revIdx;            /* Index sort order */
-  u8 isOrderDistinct;   /* All prior WhereLoops are order-distinct */
-  u8 distinctColumns;   /* True if the loop has UNIQUE NOT NULL columns */
-  u8 isMatch;           /* iColumn matches a term of the ORDER BY clause */
-  u16 eqOpMask;         /* Allowed equality operators */
-  u16 nKeyCol;          /* Number of key columns in pIndex */
-  u16 nColumn;          /* Total number of ordered columns in the index */
-  u16 nOrderBy;         /* Number terms in the ORDER BY clause */
-  int iLoop;            /* Index of WhereLoop in pPath being processed */
-  int i, j;             /* Loop counters */
-  int iCur;             /* Cursor number for current WhereLoop */
-  int iColumn;          /* A column number within table iCur */
-  WhereLoop *pLoop = 0; /* Current WhereLoop being processed. */
-  WhereTerm *pTerm;     /* A single term of the WHERE clause */
-  Expr *pOBExpr;        /* An expression from the ORDER BY clause */
-  CollSeq *pColl;       /* COLLATE function from an ORDER BY clause term */
-  Index *pIndex;        /* The index associated with pLoop */
-  tdsqlite3 *db = pWInfo->pParse->db;  /* Database connection */
-  Bitmask obSat = 0;    /* Mask of ORDER BY terms satisfied so far */
-  Bitmask obDone;       /* Mask of all ORDER BY terms */
-  Bitmask orderDistinctMask;  /* Mask of all well-ordered loops */
-  Bitmask ready;              /* Mask of inner loops */
-
-  /*
-  ** We say the WhereLoop is "one-row" if it generates no more than one
-  ** row of output.  A WhereLoop is one-row if all of the following are true:
-  **  (a) All index columns match with WHERE_COLUMN_EQ.
-  **  (b) The index is unique
-  ** Any WhereLoop with an WHERE_COLUMN_EQ constraint on the rowid is one-row.
-  ** Every one-row WhereLoop will have the WHERE_ONEROW bit set in wsFlags.
-  **
-  ** We say the WhereLoop is "order-distinct" if the set of columns from
-  ** that WhereLoop that are in the ORDER BY clause are different for every
-  ** row of the WhereLoop.  Every one-row WhereLoop is automatically
-  ** order-distinct.   A WhereLoop that has no columns in the ORDER BY clause
-  ** is not order-distinct. To be order-distinct is not quite the same as being
-  ** UNIQUE since a UNIQUE column or index can have multiple rows that 
-  ** are NULL and NULL values are equivalent for the purpose of order-distinct.
-  ** To be order-distinct, the columns must be UNIQUE and NOT NULL.
-  **
-  ** The rowid for a table is always UNIQUE and NOT NULL so whenever the
-  ** rowid appears in the ORDER BY clause, the corresponding WhereLoop is
-  ** automatically order-distinct.
-  */
-
-  assert( pOrderBy!=0 );
-  if( nLoop && OptimizationDisabled(db, SQLITE_OrderByIdxJoin) ) return 0;
-
-  nOrderBy = pOrderBy->nExpr;
-  testcase( nOrderBy==BMS-1 );
-  if( nOrderBy>BMS-1 ) return 0;  /* Cannot optimize overly large ORDER BYs */
-  isOrderDistinct = 1;
-  obDone = MASKBIT(nOrderBy)-1;
-  orderDistinctMask = 0;
-  ready = 0;
-  eqOpMask = WO_EQ | WO_IS | WO_ISNULL;
-  if( wctrlFlags & WHERE_ORDERBY_LIMIT ) eqOpMask |= WO_IN;
-  for(iLoop=0; isOrderDistinct && obSat<obDone && iLoop<=nLoop; iLoop++){
-    if( iLoop>0 ) ready |= pLoop->maskSelf;
-    if( iLoop<nLoop ){
-      pLoop = pPath->aLoop[iLoop];
-      if( wctrlFlags & WHERE_ORDERBY_LIMIT ) continue;
-    }else{
-      pLoop = pLast;
-    }
-    if( pLoop->wsFlags & WHERE_VIRTUALTABLE ){
-      if( pLoop->u.vtab.isOrdered && (wctrlFlags & WHERE_DISTINCTBY)==0 ){
-        obSat = obDone;
-      }
-      break;
-    }else if( wctrlFlags & WHERE_DISTINCTBY ){
-      pLoop->u.btree.nDistinctCol = 0;
-    }
-    iCur = pWInfo->pTabList->a[pLoop->iTab].iCursor;
-
-    /* Mark off any ORDER BY term X that is a column in the table of
-    ** the current loop for which there is term in the WHERE
-    ** clause of the form X IS NULL or X=? that reference only outer
-    ** loops.
-    */
-    for(i=0; i<nOrderBy; i++){
-      if( MASKBIT(i) & obSat ) continue;
-      pOBExpr = tdsqlite3ExprSkipCollateAndLikely(pOrderBy->a[i].pExpr);
-      if( pOBExpr->op!=TK_COLUMN ) continue;
-      if( pOBExpr->iTable!=iCur ) continue;
-      pTerm = tdsqlite3WhereFindTerm(&pWInfo->sWC, iCur, pOBExpr->iColumn,
-                       ~ready, eqOpMask, 0);
-      if( pTerm==0 ) continue;
-      if( pTerm->eOperator==WO_IN ){
-        /* IN terms are only valid for sorting in the ORDER BY LIMIT 
-        ** optimization, and then only if they are actually used
-        ** by the query plan */
-        assert( wctrlFlags & WHERE_ORDERBY_LIMIT );
-        for(j=0; j<pLoop->nLTerm && pTerm!=pLoop->aLTerm[j]; j++){}
-        if( j>=pLoop->nLTerm ) continue;
-      }
-      if( (pTerm->eOperator&(WO_EQ|WO_IS))!=0 && pOBExpr->iColumn>=0 ){
-        if( tdsqlite3ExprCollSeqMatch(pWInfo->pParse, 
-                  pOrderBy->a[i].pExpr, pTerm->pExpr)==0 ){
-          continue;
-        }
-        testcase( pTerm->pExpr->op==TK_IS );
-      }
-      obSat |= MASKBIT(i);
-    }
-
-    if( (pLoop->wsFlags & WHERE_ONEROW)==0 ){
-      if( pLoop->wsFlags & WHERE_IPK ){
-        pIndex = 0;
-        nKeyCol = 0;
-        nColumn = 1;
-      }else if( (pIndex = pLoop->u.btree.pIndex)==0 || pIndex->bUnordered ){
-        return 0;
-      }else{
-        nKeyCol = pIndex->nKeyCol;
-        nColumn = pIndex->nColumn;
-        assert( nColumn==nKeyCol+1 || !HasRowid(pIndex->pTable) );
-        assert( pIndex->aiColumn[nColumn-1]==XN_ROWID
-                          || !HasRowid(pIndex->pTable));
-        isOrderDistinct = IsUniqueIndex(pIndex)
-                          && (pLoop->wsFlags & WHERE_SKIPSCAN)==0;
-      }
-
-      /* Loop through all columns of the index and deal with the ones
-      ** that are not constrained by == or IN.
-      */
-      rev = revSet = 0;
-      distinctColumns = 0;
-      for(j=0; j<nColumn; j++){
-        u8 bOnce = 1; /* True to run the ORDER BY search loop */
-
-        assert( j>=pLoop->u.btree.nEq 
-            || (pLoop->aLTerm[j]==0)==(j<pLoop->nSkip)
-        );
-        if( j<pLoop->u.btree.nEq && j>=pLoop->nSkip ){
-          u16 eOp = pLoop->aLTerm[j]->eOperator;
-
-          /* Skip over == and IS and ISNULL terms.  (Also skip IN terms when
-          ** doing WHERE_ORDERBY_LIMIT processing).  Except, IS and ISNULL
-          ** terms imply that the index is not UNIQUE NOT NULL in which case
-          ** the loop need to be marked as not order-distinct because it can
-          ** have repeated NULL rows.
-          **
-          ** If the current term is a column of an ((?,?) IN (SELECT...)) 
-          ** expression for which the SELECT returns more than one column,
-          ** check that it is the only column used by this loop. Otherwise,
-          ** if it is one of two or more, none of the columns can be
-          ** considered to match an ORDER BY term.
-          */
-          if( (eOp & eqOpMask)!=0 ){
-            if( eOp & (WO_ISNULL|WO_IS) ){
-              testcase( eOp & WO_ISNULL );
-              testcase( eOp & WO_IS );
-              testcase( isOrderDistinct );
-              isOrderDistinct = 0;
-            }
-            continue;  
-          }else if( ALWAYS(eOp & WO_IN) ){
-            /* ALWAYS() justification: eOp is an equality operator due to the
-            ** j<pLoop->u.btree.nEq constraint above.  Any equality other
-            ** than WO_IN is captured by the previous "if".  So this one
-            ** always has to be WO_IN. */
-            Expr *pX = pLoop->aLTerm[j]->pExpr;
-            for(i=j+1; i<pLoop->u.btree.nEq; i++){
-              if( pLoop->aLTerm[i]->pExpr==pX ){
-                assert( (pLoop->aLTerm[i]->eOperator & WO_IN) );
-                bOnce = 0;
-                break;
-              }
-            }
-          }
-        }
-
-        /* Get the column number in the table (iColumn) and sort order
-        ** (revIdx) for the j-th column of the index.
-        */
-        if( pIndex ){
-          iColumn = pIndex->aiColumn[j];
-          revIdx = pIndex->aSortOrder[j] & KEYINFO_ORDER_DESC;
-          if( iColumn==pIndex->pTable->iPKey ) iColumn = XN_ROWID;
-        }else{
-          iColumn = XN_ROWID;
-          revIdx = 0;
-        }
-
-        /* An unconstrained column that might be NULL means that this
-        ** WhereLoop is not well-ordered
-        */
-        if( isOrderDistinct
-         && iColumn>=0
-         && j>=pLoop->u.btree.nEq
-         && pIndex->pTable->aCol[iColumn].notNull==0
-        ){
-          isOrderDistinct = 0;
-        }
-
-        /* Find the ORDER BY term that corresponds to the j-th column
-        ** of the index and mark that ORDER BY term off 
-        */
-        isMatch = 0;
-        for(i=0; bOnce && i<nOrderBy; i++){
-          if( MASKBIT(i) & obSat ) continue;
-          pOBExpr = tdsqlite3ExprSkipCollateAndLikely(pOrderBy->a[i].pExpr);
-          testcase( wctrlFlags & WHERE_GROUPBY );
-          testcase( wctrlFlags & WHERE_DISTINCTBY );
-          if( (wctrlFlags & (WHERE_GROUPBY|WHERE_DISTINCTBY))==0 ) bOnce = 0;
-          if( iColumn>=XN_ROWID ){
-            if( pOBExpr->op!=TK_COLUMN ) continue;
-            if( pOBExpr->iTable!=iCur ) continue;
-            if( pOBExpr->iColumn!=iColumn ) continue;
-          }else{
-            Expr *pIdxExpr = pIndex->aColExpr->a[j].pExpr;
-            if( tdsqlite3ExprCompareSkip(pOBExpr, pIdxExpr, iCur) ){
-              continue;
-            }
-          }
-          if( iColumn!=XN_ROWID ){
-            pColl = tdsqlite3ExprNNCollSeq(pWInfo->pParse, pOrderBy->a[i].pExpr);
-            if( tdsqlite3StrICmp(pColl->zName, pIndex->azColl[j])!=0 ) continue;
-          }
-          if( wctrlFlags & WHERE_DISTINCTBY ){
-            pLoop->u.btree.nDistinctCol = j+1;
-          }
-          isMatch = 1;
-          break;
-        }
-        if( isMatch && (wctrlFlags & WHERE_GROUPBY)==0 ){
-          /* Make sure the sort order is compatible in an ORDER BY clause.
-          ** Sort order is irrelevant for a GROUP BY clause. */
-          if( revSet ){
-            if( (rev ^ revIdx)!=(pOrderBy->a[i].sortFlags&KEYINFO_ORDER_DESC) ){
-              isMatch = 0;
-            }
-          }else{
-            rev = revIdx ^ (pOrderBy->a[i].sortFlags & KEYINFO_ORDER_DESC);
-            if( rev ) *pRevMask |= MASKBIT(iLoop);
-            revSet = 1;
-          }
-        }
-        if( isMatch && (pOrderBy->a[i].sortFlags & KEYINFO_ORDER_BIGNULL) ){
-          if( j==pLoop->u.btree.nEq ){
-            pLoop->wsFlags |= WHERE_BIGNULL_SORT;
-          }else{
-            isMatch = 0;
-          }
-        }
-        if( isMatch ){
-          if( iColumn==XN_ROWID ){
-            testcase( distinctColumns==0 );
-            distinctColumns = 1;
-          }
-          obSat |= MASKBIT(i);
-        }else{
-          /* No match found */
-          if( j==0 || j<nKeyCol ){
-            testcase( isOrderDistinct!=0 );
-            isOrderDistinct = 0;
-          }
-          break;
-        }
-      } /* end Loop over all index columns */
-      if( distinctColumns ){
-        testcase( isOrderDistinct==0 );
-        isOrderDistinct = 1;
-      }
-    } /* end-if not one-row */
-
-    /* Mark off any other ORDER BY terms that reference pLoop */
-    if( isOrderDistinct ){
-      orderDistinctMask |= pLoop->maskSelf;
-      for(i=0; i<nOrderBy; i++){
-        Expr *p;
-        Bitmask mTerm;
-        if( MASKBIT(i) & obSat ) continue;
-        p = pOrderBy->a[i].pExpr;
-        mTerm = tdsqlite3WhereExprUsage(&pWInfo->sMaskSet,p);
-        if( mTerm==0 && !tdsqlite3ExprIsConstant(p) ) continue;
-        if( (mTerm&~orderDistinctMask)==0 ){
-          obSat |= MASKBIT(i);
-        }
-      }
-    }
-  } /* End the loop over all WhereLoops from outer-most down to inner-most */
-  if( obSat==obDone ) return (i8)nOrderBy;
-  if( !isOrderDistinct ){
-    for(i=nOrderBy-1; i>0; i--){
-      Bitmask m = MASKBIT(i) - 1;
-      if( (obSat&m)==m ) return i;
-    }
-    return 0;
-  }
-  return -1;
-}
-
-
-/*
-** If the WHERE_GROUPBY flag is set in the mask passed to tdsqlite3WhereBegin(),
-** the planner assumes that the specified pOrderBy list is actually a GROUP
-** BY clause - and so any order that groups rows as required satisfies the
-** request.
-**
-** Normally, in this case it is not possible for the caller to determine
-** whether or not the rows are really being delivered in sorted order, or
-** just in some other order that provides the required grouping. However,
-** if the WHERE_SORTBYGROUP flag is also passed to tdsqlite3WhereBegin(), then
-** this function may be called on the returned WhereInfo object. It returns
-** true if the rows really will be sorted in the specified order, or false
-** otherwise.
-**
-** For example, assuming:
-**
-**   CREATE INDEX i1 ON t1(x, Y);
-**
-** then
-**
-**   SELECT * FROM t1 GROUP BY x,y ORDER BY x,y;   -- IsSorted()==1
-**   SELECT * FROM t1 GROUP BY y,x ORDER BY y,x;   -- IsSorted()==0
-*/
-SQLITE_PRIVATE int tdsqlite3WhereIsSorted(WhereInfo *pWInfo){
-  assert( pWInfo->wctrlFlags & WHERE_GROUPBY );
-  assert( pWInfo->wctrlFlags & WHERE_SORTBYGROUP );
-  return pWInfo->sorted;
-}
-
-#ifdef WHERETRACE_ENABLED
-/* For debugging use only: */
-static const char *wherePathName(WherePath *pPath, int nLoop, WhereLoop *pLast){
-  static char zName[65];
-  int i;
-  for(i=0; i<nLoop; i++){ zName[i] = pPath->aLoop[i]->cId; }
-  if( pLast ) zName[i++] = pLast->cId;
-  zName[i] = 0;
-  return zName;
-}
-#endif
-
-/*
-** Return the cost of sorting nRow rows, assuming that the keys have 
-** nOrderby columns and that the first nSorted columns are already in
-** order.
-*/
-static LogEst whereSortingCost(
-  WhereInfo *pWInfo,
-  LogEst nRow,
-  int nOrderBy,
-  int nSorted
-){
-  /* TUNING: Estimated cost of a full external sort, where N is 
-  ** the number of rows to sort is:
-  **
-  **   cost = (3.0 * N * log(N)).
-  ** 
-  ** Or, if the order-by clause has X terms but only the last Y 
-  ** terms are out of order, then block-sorting will reduce the 
-  ** sorting cost to:
-  **
-  **   cost = (3.0 * N * log(N)) * (Y/X)
-  **
-  ** The (Y/X) term is implemented using stack variable rScale
-  ** below.  */
-  LogEst rScale, rSortCost;
-  assert( nOrderBy>0 && 66==tdsqlite3LogEst(100) );
-  rScale = tdsqlite3LogEst((nOrderBy-nSorted)*100/nOrderBy) - 66;
-  rSortCost = nRow + rScale + 16;
-
-  /* Multiple by log(M) where M is the number of output rows.
-  ** Use the LIMIT for M if it is smaller */
-  if( (pWInfo->wctrlFlags & WHERE_USE_LIMIT)!=0 && pWInfo->iLimit<nRow ){
-    nRow = pWInfo->iLimit;
-  }
-  rSortCost += estLog(nRow);
-  return rSortCost;
-}
-
-/*
-** Given the list of WhereLoop objects at pWInfo->pLoops, this routine
-** attempts to find the lowest cost path that visits each WhereLoop
-** once.  This path is then loaded into the pWInfo->a[].pWLoop fields.
-**
-** Assume that the total number of output rows that will need to be sorted
-** will be nRowEst (in the 10*log2 representation).  Or, ignore sorting
-** costs if nRowEst==0.
-**
-** Return SQLITE_OK on success or SQLITE_NOMEM of a memory allocation
-** error occurs.
-*/
-static int wherePathSolver(WhereInfo *pWInfo, LogEst nRowEst){
-  int mxChoice;             /* Maximum number of simultaneous paths tracked */
-  int nLoop;                /* Number of terms in the join */
-  Parse *pParse;            /* Parsing context */
-  tdsqlite3 *db;              /* The database connection */
-  int iLoop;                /* Loop counter over the terms of the join */
-  int ii, jj;               /* Loop counters */
-  int mxI = 0;              /* Index of next entry to replace */
-  int nOrderBy;             /* Number of ORDER BY clause terms */
-  LogEst mxCost = 0;        /* Maximum cost of a set of paths */
-  LogEst mxUnsorted = 0;    /* Maximum unsorted cost of a set of path */
-  int nTo, nFrom;           /* Number of valid entries in aTo[] and aFrom[] */
-  WherePath *aFrom;         /* All nFrom paths at the previous level */
-  WherePath *aTo;           /* The nTo best paths at the current level */
-  WherePath *pFrom;         /* An element of aFrom[] that we are working on */
-  WherePath *pTo;           /* An element of aTo[] that we are working on */
-  WhereLoop *pWLoop;        /* One of the WhereLoop objects */
-  WhereLoop **pX;           /* Used to divy up the pSpace memory */
-  LogEst *aSortCost = 0;    /* Sorting and partial sorting costs */
-  char *pSpace;             /* Temporary memory used by this routine */
-  int nSpace;               /* Bytes of space allocated at pSpace */
-
-  pParse = pWInfo->pParse;
-  db = pParse->db;
-  nLoop = pWInfo->nLevel;
-  /* TUNING: For simple queries, only the best path is tracked.
-  ** For 2-way joins, the 5 best paths are followed.
-  ** For joins of 3 or more tables, track the 10 best paths */
-  mxChoice = (nLoop<=1) ? 1 : (nLoop==2 ? 5 : 10);
-  assert( nLoop<=pWInfo->pTabList->nSrc );
-  WHERETRACE(0x002, ("---- begin solver.  (nRowEst=%d)\n", nRowEst));
-
-  /* If nRowEst is zero and there is an ORDER BY clause, ignore it. In this
-  ** case the purpose of this call is to estimate the number of rows returned
-  ** by the overall query. Once this estimate has been obtained, the caller
-  ** will invoke this function a second time, passing the estimate as the
-  ** nRowEst parameter.  */
-  if( pWInfo->pOrderBy==0 || nRowEst==0 ){
-    nOrderBy = 0;
-  }else{
-    nOrderBy = pWInfo->pOrderBy->nExpr;
-  }
-
-  /* Allocate and initialize space for aTo, aFrom and aSortCost[] */
-  nSpace = (sizeof(WherePath)+sizeof(WhereLoop*)*nLoop)*mxChoice*2;
-  nSpace += sizeof(LogEst) * nOrderBy;
-  pSpace = tdsqlite3DbMallocRawNN(db, nSpace);
-  if( pSpace==0 ) return SQLITE_NOMEM_BKPT;
-  aTo = (WherePath*)pSpace;
-  aFrom = aTo+mxChoice;
-  memset(aFrom, 0, sizeof(aFrom[0]));
-  pX = (WhereLoop**)(aFrom+mxChoice);
-  for(ii=mxChoice*2, pFrom=aTo; ii>0; ii--, pFrom++, pX += nLoop){
-    pFrom->aLoop = pX;
-  }
-  if( nOrderBy ){
-    /* If there is an ORDER BY clause and it is not being ignored, set up
-    ** space for the aSortCost[] array. Each element of the aSortCost array
-    ** is either zero - meaning it has not yet been initialized - or the
-    ** cost of sorting nRowEst rows of data where the first X terms of
-    ** the ORDER BY clause are already in order, where X is the array 
-    ** index.  */
-    aSortCost = (LogEst*)pX;
-    memset(aSortCost, 0, sizeof(LogEst) * nOrderBy);
-  }
-  assert( aSortCost==0 || &pSpace[nSpace]==(char*)&aSortCost[nOrderBy] );
-  assert( aSortCost!=0 || &pSpace[nSpace]==(char*)pX );
-
-  /* Seed the search with a single WherePath containing zero WhereLoops.
-  **
-  ** TUNING: Do not let the number of iterations go above 28.  If the cost
-  ** of computing an automatic index is not paid back within the first 28
-  ** rows, then do not use the automatic index. */
-  aFrom[0].nRow = MIN(pParse->nQueryLoop, 48);  assert( 48==tdsqlite3LogEst(28) );
-  nFrom = 1;
-  assert( aFrom[0].isOrdered==0 );
-  if( nOrderBy ){
-    /* If nLoop is zero, then there are no FROM terms in the query. Since
-    ** in this case the query may return a maximum of one row, the results
-    ** are already in the requested order. Set isOrdered to nOrderBy to
-    ** indicate this. Or, if nLoop is greater than zero, set isOrdered to
-    ** -1, indicating that the result set may or may not be ordered, 
-    ** depending on the loops added to the current plan.  */
-    aFrom[0].isOrdered = nLoop>0 ? -1 : nOrderBy;
-  }
-
-  /* Compute successively longer WherePaths using the previous generation
-  ** of WherePaths as the basis for the next.  Keep track of the mxChoice
-  ** best paths at each generation */
-  for(iLoop=0; iLoop<nLoop; iLoop++){
-    nTo = 0;
-    for(ii=0, pFrom=aFrom; ii<nFrom; ii++, pFrom++){
-      for(pWLoop=pWInfo->pLoops; pWLoop; pWLoop=pWLoop->pNextLoop){
-        LogEst nOut;                      /* Rows visited by (pFrom+pWLoop) */
-        LogEst rCost;                     /* Cost of path (pFrom+pWLoop) */
-        LogEst rUnsorted;                 /* Unsorted cost of (pFrom+pWLoop) */
-        i8 isOrdered = pFrom->isOrdered;  /* isOrdered for (pFrom+pWLoop) */
-        Bitmask maskNew;                  /* Mask of src visited by (..) */
-        Bitmask revMask = 0;              /* Mask of rev-order loops for (..) */
-
-        if( (pWLoop->prereq & ~pFrom->maskLoop)!=0 ) continue;
-        if( (pWLoop->maskSelf & pFrom->maskLoop)!=0 ) continue;
-        if( (pWLoop->wsFlags & WHERE_AUTO_INDEX)!=0 && pFrom->nRow<3 ){
-          /* Do not use an automatic index if the this loop is expected
-          ** to run less than 1.25 times.  It is tempting to also exclude
-          ** automatic index usage on an outer loop, but sometimes an automatic
-          ** index is useful in the outer loop of a correlated subquery. */
-          assert( 10==tdsqlite3LogEst(2) );
-          continue;
-        }
-
-        /* At this point, pWLoop is a candidate to be the next loop. 
-        ** Compute its cost */
-        rUnsorted = tdsqlite3LogEstAdd(pWLoop->rSetup,pWLoop->rRun + pFrom->nRow);
-        rUnsorted = tdsqlite3LogEstAdd(rUnsorted, pFrom->rUnsorted);
-        nOut = pFrom->nRow + pWLoop->nOut;
-        maskNew = pFrom->maskLoop | pWLoop->maskSelf;
-        if( isOrdered<0 ){
-          isOrdered = wherePathSatisfiesOrderBy(pWInfo,
-                       pWInfo->pOrderBy, pFrom, pWInfo->wctrlFlags,
-                       iLoop, pWLoop, &revMask);
-        }else{
-          revMask = pFrom->revLoop;
-        }
-        if( isOrdered>=0 && isOrdered<nOrderBy ){
-          if( aSortCost[isOrdered]==0 ){
-            aSortCost[isOrdered] = whereSortingCost(
-                pWInfo, nRowEst, nOrderBy, isOrdered
-            );
-          }
-          /* TUNING:  Add a small extra penalty (5) to sorting as an
-          ** extra encouragment to the query planner to select a plan
-          ** where the rows emerge in the correct order without any sorting
-          ** required. */
-          rCost = tdsqlite3LogEstAdd(rUnsorted, aSortCost[isOrdered]) + 5;
-
-          WHERETRACE(0x002,
-              ("---- sort cost=%-3d (%d/%d) increases cost %3d to %-3d\n",
-               aSortCost[isOrdered], (nOrderBy-isOrdered), nOrderBy, 
-               rUnsorted, rCost));
-        }else{
-          rCost = rUnsorted;
-          rUnsorted -= 2;  /* TUNING:  Slight bias in favor of no-sort plans */
-        }
-
-        /* Check to see if pWLoop should be added to the set of
-        ** mxChoice best-so-far paths.
-        **
-        ** First look for an existing path among best-so-far paths
-        ** that covers the same set of loops and has the same isOrdered
-        ** setting as the current path candidate.
-        **
-        ** The term "((pTo->isOrdered^isOrdered)&0x80)==0" is equivalent
-        ** to (pTo->isOrdered==(-1))==(isOrdered==(-1))" for the range
-        ** of legal values for isOrdered, -1..64.
-        */
-        for(jj=0, pTo=aTo; jj<nTo; jj++, pTo++){
-          if( pTo->maskLoop==maskNew
-           && ((pTo->isOrdered^isOrdered)&0x80)==0
-          ){
-            testcase( jj==nTo-1 );
-            break;
-          }
-        }
-        if( jj>=nTo ){
-          /* None of the existing best-so-far paths match the candidate. */
-          if( nTo>=mxChoice
-           && (rCost>mxCost || (rCost==mxCost && rUnsorted>=mxUnsorted))
-          ){
-            /* The current candidate is no better than any of the mxChoice
-            ** paths currently in the best-so-far buffer.  So discard
-            ** this candidate as not viable. */
-#ifdef WHERETRACE_ENABLED /* 0x4 */
-            if( tdsqlite3WhereTrace&0x4 ){
-              tdsqlite3DebugPrintf("Skip   %s cost=%-3d,%3d,%3d order=%c\n",
-                  wherePathName(pFrom, iLoop, pWLoop), rCost, nOut, rUnsorted,
-                  isOrdered>=0 ? isOrdered+'0' : '?');
-            }
-#endif
-            continue;
-          }
-          /* If we reach this points it means that the new candidate path
-          ** needs to be added to the set of best-so-far paths. */
-          if( nTo<mxChoice ){
-            /* Increase the size of the aTo set by one */
-            jj = nTo++;
-          }else{
-            /* New path replaces the prior worst to keep count below mxChoice */
-            jj = mxI;
-          }
-          pTo = &aTo[jj];
-#ifdef WHERETRACE_ENABLED /* 0x4 */
-          if( tdsqlite3WhereTrace&0x4 ){
-            tdsqlite3DebugPrintf("New    %s cost=%-3d,%3d,%3d order=%c\n",
-                wherePathName(pFrom, iLoop, pWLoop), rCost, nOut, rUnsorted,
-                isOrdered>=0 ? isOrdered+'0' : '?');
-          }
-#endif
-        }else{
-          /* Control reaches here if best-so-far path pTo=aTo[jj] covers the
-          ** same set of loops and has the same isOrdered setting as the
-          ** candidate path.  Check to see if the candidate should replace
-          ** pTo or if the candidate should be skipped.
-          ** 
-          ** The conditional is an expanded vector comparison equivalent to:
-          **   (pTo->rCost,pTo->nRow,pTo->rUnsorted) <= (rCost,nOut,rUnsorted)
-          */
-          if( pTo->rCost<rCost 
-           || (pTo->rCost==rCost
-               && (pTo->nRow<nOut
-                   || (pTo->nRow==nOut && pTo->rUnsorted<=rUnsorted)
-                  )
-              )
-          ){
-#ifdef WHERETRACE_ENABLED /* 0x4 */
-            if( tdsqlite3WhereTrace&0x4 ){
-              tdsqlite3DebugPrintf(
-                  "Skip   %s cost=%-3d,%3d,%3d order=%c",
-                  wherePathName(pFrom, iLoop, pWLoop), rCost, nOut, rUnsorted,
-                  isOrdered>=0 ? isOrdered+'0' : '?');
-              tdsqlite3DebugPrintf("   vs %s cost=%-3d,%3d,%3d order=%c\n",
-                  wherePathName(pTo, iLoop+1, 0), pTo->rCost, pTo->nRow,
-                  pTo->rUnsorted, pTo->isOrdered>=0 ? pTo->isOrdered+'0' : '?');
-            }
-#endif
-            /* Discard the candidate path from further consideration */
-            testcase( pTo->rCost==rCost );
-            continue;
-          }
-          testcase( pTo->rCost==rCost+1 );
-          /* Control reaches here if the candidate path is better than the
-          ** pTo path.  Replace pTo with the candidate. */
-#ifdef WHERETRACE_ENABLED /* 0x4 */
-          if( tdsqlite3WhereTrace&0x4 ){
-            tdsqlite3DebugPrintf(
-                "Update %s cost=%-3d,%3d,%3d order=%c",
-                wherePathName(pFrom, iLoop, pWLoop), rCost, nOut, rUnsorted,
-                isOrdered>=0 ? isOrdered+'0' : '?');
-            tdsqlite3DebugPrintf("  was %s cost=%-3d,%3d,%3d order=%c\n",
-                wherePathName(pTo, iLoop+1, 0), pTo->rCost, pTo->nRow,
-                pTo->rUnsorted, pTo->isOrdered>=0 ? pTo->isOrdered+'0' : '?');
-          }
-#endif
-        }
-        /* pWLoop is a winner.  Add it to the set of best so far */
-        pTo->maskLoop = pFrom->maskLoop | pWLoop->maskSelf;
-        pTo->revLoop = revMask;
-        pTo->nRow = nOut;
-        pTo->rCost = rCost;
-        pTo->rUnsorted = rUnsorted;
-        pTo->isOrdered = isOrdered;
-        memcpy(pTo->aLoop, pFrom->aLoop, sizeof(WhereLoop*)*iLoop);
-        pTo->aLoop[iLoop] = pWLoop;
-        if( nTo>=mxChoice ){
-          mxI = 0;
-          mxCost = aTo[0].rCost;
-          mxUnsorted = aTo[0].nRow;
-          for(jj=1, pTo=&aTo[1]; jj<mxChoice; jj++, pTo++){
-            if( pTo->rCost>mxCost 
-             || (pTo->rCost==mxCost && pTo->rUnsorted>mxUnsorted) 
-            ){
-              mxCost = pTo->rCost;
-              mxUnsorted = pTo->rUnsorted;
-              mxI = jj;
-            }
-          }
-        }
-      }
-    }
-
-#ifdef WHERETRACE_ENABLED  /* >=2 */
-    if( tdsqlite3WhereTrace & 0x02 ){
-      tdsqlite3DebugPrintf("---- after round %d ----\n", iLoop);
-      for(ii=0, pTo=aTo; ii<nTo; ii++, pTo++){
-        tdsqlite3DebugPrintf(" %s cost=%-3d nrow=%-3d order=%c",
-           wherePathName(pTo, iLoop+1, 0), pTo->rCost, pTo->nRow,
-           pTo->isOrdered>=0 ? (pTo->isOrdered+'0') : '?');
-        if( pTo->isOrdered>0 ){
-          tdsqlite3DebugPrintf(" rev=0x%llx\n", pTo->revLoop);
-        }else{
-          tdsqlite3DebugPrintf("\n");
-        }
-      }
-    }
-#endif
-
-    /* Swap the roles of aFrom and aTo for the next generation */
-    pFrom = aTo;
-    aTo = aFrom;
-    aFrom = pFrom;
-    nFrom = nTo;
-  }
-
-  if( nFrom==0 ){
-    tdsqlite3ErrorMsg(pParse, "no query solution");
-    tdsqlite3DbFreeNN(db, pSpace);
-    return SQLITE_ERROR;
-  }
-  
-  /* Find the lowest cost path.  pFrom will be left pointing to that path */
-  pFrom = aFrom;
-  for(ii=1; ii<nFrom; ii++){
-    if( pFrom->rCost>aFrom[ii].rCost ) pFrom = &aFrom[ii];
-  }
-  assert( pWInfo->nLevel==nLoop );
-  /* Load the lowest cost path into pWInfo */
-  for(iLoop=0; iLoop<nLoop; iLoop++){
-    WhereLevel *pLevel = pWInfo->a + iLoop;
-    pLevel->pWLoop = pWLoop = pFrom->aLoop[iLoop];
-    pLevel->iFrom = pWLoop->iTab;
-    pLevel->iTabCur = pWInfo->pTabList->a[pLevel->iFrom].iCursor;
-  }
-  if( (pWInfo->wctrlFlags & WHERE_WANT_DISTINCT)!=0
-   && (pWInfo->wctrlFlags & WHERE_DISTINCTBY)==0
-   && pWInfo->eDistinct==WHERE_DISTINCT_NOOP
-   && nRowEst
-  ){
-    Bitmask notUsed;
-    int rc = wherePathSatisfiesOrderBy(pWInfo, pWInfo->pResultSet, pFrom,
-                 WHERE_DISTINCTBY, nLoop-1, pFrom->aLoop[nLoop-1], &notUsed);
-    if( rc==pWInfo->pResultSet->nExpr ){
-      pWInfo->eDistinct = WHERE_DISTINCT_ORDERED;
-    }
-  }
-  pWInfo->bOrderedInnerLoop = 0;
-  if( pWInfo->pOrderBy ){
-    if( pWInfo->wctrlFlags & WHERE_DISTINCTBY ){
-      if( pFrom->isOrdered==pWInfo->pOrderBy->nExpr ){
-        pWInfo->eDistinct = WHERE_DISTINCT_ORDERED;
-      }
-    }else{
-      pWInfo->nOBSat = pFrom->isOrdered;
-      pWInfo->revMask = pFrom->revLoop;
-      if( pWInfo->nOBSat<=0 ){
-        pWInfo->nOBSat = 0;
-        if( nLoop>0 ){
-          u32 wsFlags = pFrom->aLoop[nLoop-1]->wsFlags;
-          if( (wsFlags & WHERE_ONEROW)==0 
-           && (wsFlags&(WHERE_IPK|WHERE_COLUMN_IN))!=(WHERE_IPK|WHERE_COLUMN_IN)
-          ){
-            Bitmask m = 0;
-            int rc = wherePathSatisfiesOrderBy(pWInfo, pWInfo->pOrderBy, pFrom,
-                      WHERE_ORDERBY_LIMIT, nLoop-1, pFrom->aLoop[nLoop-1], &m);
-            testcase( wsFlags & WHERE_IPK );
-            testcase( wsFlags & WHERE_COLUMN_IN );
-            if( rc==pWInfo->pOrderBy->nExpr ){
-              pWInfo->bOrderedInnerLoop = 1;
-              pWInfo->revMask = m;
-            }
-          }
-        }
-      }
-    }
-    if( (pWInfo->wctrlFlags & WHERE_SORTBYGROUP)
-        && pWInfo->nOBSat==pWInfo->pOrderBy->nExpr && nLoop>0
-    ){
-      Bitmask revMask = 0;
-      int nOrder = wherePathSatisfiesOrderBy(pWInfo, pWInfo->pOrderBy, 
-          pFrom, 0, nLoop-1, pFrom->aLoop[nLoop-1], &revMask
-      );
-      assert( pWInfo->sorted==0 );
-      if( nOrder==pWInfo->pOrderBy->nExpr ){
-        pWInfo->sorted = 1;
-        pWInfo->revMask = revMask;
-      }
-    }
-  }
-
-
-  pWInfo->nRowOut = pFrom->nRow;
-
-  /* Free temporary memory and return success */
-  tdsqlite3DbFreeNN(db, pSpace);
-  return SQLITE_OK;
-}
-
-/*
-** Most queries use only a single table (they are not joins) and have
-** simple == constraints against indexed fields.  This routine attempts
-** to plan those simple cases using much less ceremony than the
-** general-purpose query planner, and thereby yield faster tdsqlite3_prepare()
-** times for the common case.
-**
-** Return non-zero on success, if this query can be handled by this
-** no-frills query planner.  Return zero if this query needs the 
-** general-purpose query planner.
-*/
-static int whereShortCut(WhereLoopBuilder *pBuilder){
-  WhereInfo *pWInfo;
-  struct SrcList_item *pItem;
-  WhereClause *pWC;
-  WhereTerm *pTerm;
-  WhereLoop *pLoop;
-  int iCur;
-  int j;
-  Table *pTab;
-  Index *pIdx;
-
-  pWInfo = pBuilder->pWInfo;
-  if( pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE ) return 0;
-  assert( pWInfo->pTabList->nSrc>=1 );
-  pItem = pWInfo->pTabList->a;
-  pTab = pItem->pTab;
-  if( IsVirtual(pTab) ) return 0;
-  if( pItem->fg.isIndexedBy ) return 0;
-  iCur = pItem->iCursor;
-  pWC = &pWInfo->sWC;
-  pLoop = pBuilder->pNew;
-  pLoop->wsFlags = 0;
-  pLoop->nSkip = 0;
-  pTerm = tdsqlite3WhereFindTerm(pWC, iCur, -1, 0, WO_EQ|WO_IS, 0);
-  if( pTerm ){
-    testcase( pTerm->eOperator & WO_IS );
-    pLoop->wsFlags = WHERE_COLUMN_EQ|WHERE_IPK|WHERE_ONEROW;
-    pLoop->aLTerm[0] = pTerm;
-    pLoop->nLTerm = 1;
-    pLoop->u.btree.nEq = 1;
-    /* TUNING: Cost of a rowid lookup is 10 */
-    pLoop->rRun = 33;  /* 33==tdsqlite3LogEst(10) */
-  }else{
-    for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
-      int opMask;
-      assert( pLoop->aLTermSpace==pLoop->aLTerm );
-      if( !IsUniqueIndex(pIdx)
-       || pIdx->pPartIdxWhere!=0 
-       || pIdx->nKeyCol>ArraySize(pLoop->aLTermSpace) 
-      ) continue;
-      opMask = pIdx->uniqNotNull ? (WO_EQ|WO_IS) : WO_EQ;
-      for(j=0; j<pIdx->nKeyCol; j++){
-        pTerm = tdsqlite3WhereFindTerm(pWC, iCur, j, 0, opMask, pIdx);
-        if( pTerm==0 ) break;
-        testcase( pTerm->eOperator & WO_IS );
-        pLoop->aLTerm[j] = pTerm;
-      }
-      if( j!=pIdx->nKeyCol ) continue;
-      pLoop->wsFlags = WHERE_COLUMN_EQ|WHERE_ONEROW|WHERE_INDEXED;
-      if( pIdx->isCovering || (pItem->colUsed & pIdx->colNotIdxed)==0 ){
-        pLoop->wsFlags |= WHERE_IDX_ONLY;
-      }
-      pLoop->nLTerm = j;
-      pLoop->u.btree.nEq = j;
-      pLoop->u.btree.pIndex = pIdx;
-      /* TUNING: Cost of a unique index lookup is 15 */
-      pLoop->rRun = 39;  /* 39==tdsqlite3LogEst(15) */
-      break;
-    }
-  }
-  if( pLoop->wsFlags ){
-    pLoop->nOut = (LogEst)1;
-    pWInfo->a[0].pWLoop = pLoop;
-    assert( pWInfo->sMaskSet.n==1 && iCur==pWInfo->sMaskSet.ix[0] );
-    pLoop->maskSelf = 1; /* tdsqlite3WhereGetMask(&pWInfo->sMaskSet, iCur); */
-    pWInfo->a[0].iTabCur = iCur;
-    pWInfo->nRowOut = 1;
-    if( pWInfo->pOrderBy ) pWInfo->nOBSat =  pWInfo->pOrderBy->nExpr;
-    if( pWInfo->wctrlFlags & WHERE_WANT_DISTINCT ){
-      pWInfo->eDistinct = WHERE_DISTINCT_UNIQUE;
-    }
-#ifdef SQLITE_DEBUG
-    pLoop->cId = '0';
-#endif
-    return 1;
-  }
-  return 0;
-}
-
-/*
-** Helper function for exprIsDeterministic().
-*/
-static int exprNodeIsDeterministic(Walker *pWalker, Expr *pExpr){
-  if( pExpr->op==TK_FUNCTION && ExprHasProperty(pExpr, EP_ConstFunc)==0 ){
-    pWalker->eCode = 0;
-    return WRC_Abort;
-  }
-  return WRC_Continue;
-}
-
-/*
-** Return true if the expression contains no non-deterministic SQL 
-** functions. Do not consider non-deterministic SQL functions that are 
-** part of sub-select statements.
-*/
-static int exprIsDeterministic(Expr *p){
-  Walker w;
-  memset(&w, 0, sizeof(w));
-  w.eCode = 1;
-  w.xExprCallback = exprNodeIsDeterministic;
-  w.xSelectCallback = tdsqlite3SelectWalkFail;
-  tdsqlite3WalkExpr(&w, p);
-  return w.eCode;
-}
-
-/*
-** Generate the beginning of the loop used for WHERE clause processing.
-** The return value is a pointer to an opaque structure that contains
-** information needed to terminate the loop.  Later, the calling routine
-** should invoke tdsqlite3WhereEnd() with the return value of this function
-** in order to complete the WHERE clause processing.
-**
-** If an error occurs, this routine returns NULL.
-**
-** The basic idea is to do a nested loop, one loop for each table in
-** the FROM clause of a select.  (INSERT and UPDATE statements are the
-** same as a SELECT with only a single table in the FROM clause.)  For
-** example, if the SQL is this:
-**
-**       SELECT * FROM t1, t2, t3 WHERE ...;
-**
-** Then the code generated is conceptually like the following:
-**
-**      foreach row1 in t1 do       \    Code generated
-**        foreach row2 in t2 do      |-- by tdsqlite3WhereBegin()
-**          foreach row3 in t3 do   /
-**            ...
-**          end                     \    Code generated
-**        end                        |-- by tdsqlite3WhereEnd()
-**      end                         /
-**
-** Note that the loops might not be nested in the order in which they
-** appear in the FROM clause if a different order is better able to make
-** use of indices.  Note also that when the IN operator appears in
-** the WHERE clause, it might result in additional nested loops for
-** scanning through all values on the right-hand side of the IN.
-**
-** There are Btree cursors associated with each table.  t1 uses cursor
-** number pTabList->a[0].iCursor.  t2 uses the cursor pTabList->a[1].iCursor.
-** And so forth.  This routine generates code to open those VDBE cursors
-** and tdsqlite3WhereEnd() generates the code to close them.
-**
-** The code that tdsqlite3WhereBegin() generates leaves the cursors named
-** in pTabList pointing at their appropriate entries.  The [...] code
-** can use OP_Column and OP_Rowid opcodes on these cursors to extract
-** data from the various tables of the loop.
-**
-** If the WHERE clause is empty, the foreach loops must each scan their
-** entire tables.  Thus a three-way join is an O(N^3) operation.  But if
-** the tables have indices and there are terms in the WHERE clause that
-** refer to those indices, a complete table scan can be avoided and the
-** code will run much faster.  Most of the work of this routine is checking
-** to see if there are indices that can be used to speed up the loop.
-**
-** Terms of the WHERE clause are also used to limit which rows actually
-** make it to the "..." in the middle of the loop.  After each "foreach",
-** terms of the WHERE clause that use only terms in that loop and outer
-** loops are evaluated and if false a jump is made around all subsequent
-** inner loops (or around the "..." if the test occurs within the inner-
-** most loop)
-**
-** OUTER JOINS
-**
-** An outer join of tables t1 and t2 is conceptally coded as follows:
-**
-**    foreach row1 in t1 do
-**      flag = 0
-**      foreach row2 in t2 do
-**        start:
-**          ...
-**          flag = 1
-**      end
-**      if flag==0 then
-**        move the row2 cursor to a null row
-**        goto start
-**      fi
-**    end
-**
-** ORDER BY CLAUSE PROCESSING
-**
-** pOrderBy is a pointer to the ORDER BY clause (or the GROUP BY clause
-** if the WHERE_GROUPBY flag is set in wctrlFlags) of a SELECT statement
-** if there is one.  If there is no ORDER BY clause or if this routine
-** is called from an UPDATE or DELETE statement, then pOrderBy is NULL.
-**
-** The iIdxCur parameter is the cursor number of an index.  If 
-** WHERE_OR_SUBCLAUSE is set, iIdxCur is the cursor number of an index
-** to use for OR clause processing.  The WHERE clause should use this
-** specific cursor.  If WHERE_ONEPASS_DESIRED is set, then iIdxCur is
-** the first cursor in an array of cursors for all indices.  iIdxCur should
-** be used to compute the appropriate cursor depending on which index is
-** used.
-*/
-SQLITE_PRIVATE WhereInfo *tdsqlite3WhereBegin(
-  Parse *pParse,          /* The parser context */
-  SrcList *pTabList,      /* FROM clause: A list of all tables to be scanned */
-  Expr *pWhere,           /* The WHERE clause */
-  ExprList *pOrderBy,     /* An ORDER BY (or GROUP BY) clause, or NULL */
-  ExprList *pResultSet,   /* Query result set.  Req'd for DISTINCT */
-  u16 wctrlFlags,         /* The WHERE_* flags defined in sqliteInt.h */
-  int iAuxArg             /* If WHERE_OR_SUBCLAUSE is set, index cursor number
-                          ** If WHERE_USE_LIMIT, then the limit amount */
-){
-  int nByteWInfo;            /* Num. bytes allocated for WhereInfo struct */
-  int nTabList;              /* Number of elements in pTabList */
-  WhereInfo *pWInfo;         /* Will become the return value of this function */
-  Vdbe *v = pParse->pVdbe;   /* The virtual database engine */
-  Bitmask notReady;          /* Cursors that are not yet positioned */
-  WhereLoopBuilder sWLB;     /* The WhereLoop builder */
-  WhereMaskSet *pMaskSet;    /* The expression mask set */
-  WhereLevel *pLevel;        /* A single level in pWInfo->a[] */
-  WhereLoop *pLoop;          /* Pointer to a single WhereLoop object */
-  int ii;                    /* Loop counter */
-  tdsqlite3 *db;               /* Database connection */
-  int rc;                    /* Return code */
-  u8 bFordelete = 0;         /* OPFLAG_FORDELETE or zero, as appropriate */
-
-  assert( (wctrlFlags & WHERE_ONEPASS_MULTIROW)==0 || (
-        (wctrlFlags & WHERE_ONEPASS_DESIRED)!=0 
-     && (wctrlFlags & WHERE_OR_SUBCLAUSE)==0 
-  ));
-
-  /* Only one of WHERE_OR_SUBCLAUSE or WHERE_USE_LIMIT */
-  assert( (wctrlFlags & WHERE_OR_SUBCLAUSE)==0
-            || (wctrlFlags & WHERE_USE_LIMIT)==0 );
-
-  /* Variable initialization */
-  db = pParse->db;
-  memset(&sWLB, 0, sizeof(sWLB));
-
-  /* An ORDER/GROUP BY clause of more than 63 terms cannot be optimized */
-  testcase( pOrderBy && pOrderBy->nExpr==BMS-1 );
-  if( pOrderBy && pOrderBy->nExpr>=BMS ) pOrderBy = 0;
-  sWLB.pOrderBy = pOrderBy;
-
-  /* Disable the DISTINCT optimization if SQLITE_DistinctOpt is set via
-  ** tdsqlite3_test_ctrl(SQLITE_TESTCTRL_OPTIMIZATIONS,...) */
-  if( OptimizationDisabled(db, SQLITE_DistinctOpt) ){
-    wctrlFlags &= ~WHERE_WANT_DISTINCT;
-  }
-
-  /* The number of tables in the FROM clause is limited by the number of
-  ** bits in a Bitmask 
-  */
-  testcase( pTabList->nSrc==BMS );
-  if( pTabList->nSrc>BMS ){
-    tdsqlite3ErrorMsg(pParse, "at most %d tables in a join", BMS);
-    return 0;
-  }
-
-  /* This function normally generates a nested loop for all tables in 
-  ** pTabList.  But if the WHERE_OR_SUBCLAUSE flag is set, then we should
-  ** only generate code for the first table in pTabList and assume that
-  ** any cursors associated with subsequent tables are uninitialized.
-  */
-  nTabList = (wctrlFlags & WHERE_OR_SUBCLAUSE) ? 1 : pTabList->nSrc;
-
-  /* Allocate and initialize the WhereInfo structure that will become the
-  ** return value. A single allocation is used to store the WhereInfo
-  ** struct, the contents of WhereInfo.a[], the WhereClause structure
-  ** and the WhereMaskSet structure. Since WhereClause contains an 8-byte
-  ** field (type Bitmask) it must be aligned on an 8-byte boundary on
-  ** some architectures. Hence the ROUND8() below.
-  */
-  nByteWInfo = ROUND8(sizeof(WhereInfo)+(nTabList-1)*sizeof(WhereLevel));
-  pWInfo = tdsqlite3DbMallocRawNN(db, nByteWInfo + sizeof(WhereLoop));
-  if( db->mallocFailed ){
-    tdsqlite3DbFree(db, pWInfo);
-    pWInfo = 0;
-    goto whereBeginError;
-  }
-  pWInfo->pParse = pParse;
-  pWInfo->pTabList = pTabList;
-  pWInfo->pOrderBy = pOrderBy;
-  pWInfo->pWhere = pWhere;
-  pWInfo->pResultSet = pResultSet;
-  pWInfo->aiCurOnePass[0] = pWInfo->aiCurOnePass[1] = -1;
-  pWInfo->nLevel = nTabList;
-  pWInfo->iBreak = pWInfo->iContinue = tdsqlite3VdbeMakeLabel(pParse);
-  pWInfo->wctrlFlags = wctrlFlags;
-  pWInfo->iLimit = iAuxArg;
-  pWInfo->savedNQueryLoop = pParse->nQueryLoop;
-  memset(&pWInfo->nOBSat, 0, 
-         offsetof(WhereInfo,sWC) - offsetof(WhereInfo,nOBSat));
-  memset(&pWInfo->a[0], 0, sizeof(WhereLoop)+nTabList*sizeof(WhereLevel));
-  assert( pWInfo->eOnePass==ONEPASS_OFF );  /* ONEPASS defaults to OFF */
-  pMaskSet = &pWInfo->sMaskSet;
-  sWLB.pWInfo = pWInfo;
-  sWLB.pWC = &pWInfo->sWC;
-  sWLB.pNew = (WhereLoop*)(((char*)pWInfo)+nByteWInfo);
-  assert( EIGHT_BYTE_ALIGNMENT(sWLB.pNew) );
-  whereLoopInit(sWLB.pNew);
-#ifdef SQLITE_DEBUG
-  sWLB.pNew->cId = '*';
-#endif
-
-  /* Split the WHERE clause into separate subexpressions where each
-  ** subexpression is separated by an AND operator.
-  */
-  initMaskSet(pMaskSet);
-  tdsqlite3WhereClauseInit(&pWInfo->sWC, pWInfo);
-  tdsqlite3WhereSplit(&pWInfo->sWC, pWhere, TK_AND);
-    
-  /* Special case: No FROM clause
-  */
-  if( nTabList==0 ){
-    if( pOrderBy ) pWInfo->nOBSat = pOrderBy->nExpr;
-    if( wctrlFlags & WHERE_WANT_DISTINCT ){
-      pWInfo->eDistinct = WHERE_DISTINCT_UNIQUE;
-    }
-    ExplainQueryPlan((pParse, 0, "SCAN CONSTANT ROW"));
-  }else{
-    /* Assign a bit from the bitmask to every term in the FROM clause.
-    **
-    ** The N-th term of the FROM clause is assigned a bitmask of 1<<N.
-    **
-    ** The rule of the previous sentence ensures thta if X is the bitmask for
-    ** a table T, then X-1 is the bitmask for all other tables to the left of T.
-    ** Knowing the bitmask for all tables to the left of a left join is
-    ** important.  Ticket #3015.
-    **
-    ** Note that bitmasks are created for all pTabList->nSrc tables in
-    ** pTabList, not just the first nTabList tables.  nTabList is normally
-    ** equal to pTabList->nSrc but might be shortened to 1 if the
-    ** WHERE_OR_SUBCLAUSE flag is set.
-    */
-    ii = 0;
-    do{
-      createMask(pMaskSet, pTabList->a[ii].iCursor);
-      tdsqlite3WhereTabFuncArgs(pParse, &pTabList->a[ii], &pWInfo->sWC);
-    }while( (++ii)<pTabList->nSrc );
-  #ifdef SQLITE_DEBUG
-    {
-      Bitmask mx = 0;
-      for(ii=0; ii<pTabList->nSrc; ii++){
-        Bitmask m = tdsqlite3WhereGetMask(pMaskSet, pTabList->a[ii].iCursor);
-        assert( m>=mx );
-        mx = m;
-      }
-    }
-  #endif
-  }
-  
-  /* Analyze all of the subexpressions. */
-  tdsqlite3WhereExprAnalyze(pTabList, &pWInfo->sWC);
-  if( db->mallocFailed ) goto whereBeginError;
-
-  /* Special case: WHERE terms that do not refer to any tables in the join
-  ** (constant expressions). Evaluate each such term, and jump over all the
-  ** generated code if the result is not true.  
-  **
-  ** Do not do this if the expression contains non-deterministic functions
-  ** that are not within a sub-select. This is not strictly required, but
-  ** preserves SQLite's legacy behaviour in the following two cases:
-  **
-  **   FROM ... WHERE random()>0;           -- eval random() once per row
-  **   FROM ... WHERE (SELECT random())>0;  -- eval random() once overall
-  */
-  for(ii=0; ii<sWLB.pWC->nTerm; ii++){
-    WhereTerm *pT = &sWLB.pWC->a[ii];
-    if( pT->wtFlags & TERM_VIRTUAL ) continue;
-    if( pT->prereqAll==0 && (nTabList==0 || exprIsDeterministic(pT->pExpr)) ){
-      tdsqlite3ExprIfFalse(pParse, pT->pExpr, pWInfo->iBreak, SQLITE_JUMPIFNULL);
-      pT->wtFlags |= TERM_CODED;
-    }
-  }
-
-  if( wctrlFlags & WHERE_WANT_DISTINCT ){
-    if( isDistinctRedundant(pParse, pTabList, &pWInfo->sWC, pResultSet) ){
-      /* The DISTINCT marking is pointless.  Ignore it. */
-      pWInfo->eDistinct = WHERE_DISTINCT_UNIQUE;
-    }else if( pOrderBy==0 ){
-      /* Try to ORDER BY the result set to make distinct processing easier */
-      pWInfo->wctrlFlags |= WHERE_DISTINCTBY;
-      pWInfo->pOrderBy = pResultSet;
-    }
-  }
-
-  /* Construct the WhereLoop objects */
-#if defined(WHERETRACE_ENABLED)
-  if( tdsqlite3WhereTrace & 0xffff ){
-    tdsqlite3DebugPrintf("*** Optimizer Start *** (wctrlFlags: 0x%x",wctrlFlags);
-    if( wctrlFlags & WHERE_USE_LIMIT ){
-      tdsqlite3DebugPrintf(", limit: %d", iAuxArg);
-    }
-    tdsqlite3DebugPrintf(")\n");
-    if( tdsqlite3WhereTrace & 0x100 ){
-      Select sSelect;
-      memset(&sSelect, 0, sizeof(sSelect));
-      sSelect.selFlags = SF_WhereBegin;
-      sSelect.pSrc = pTabList;
-      sSelect.pWhere = pWhere;
-      sSelect.pOrderBy = pOrderBy;
-      sSelect.pEList = pResultSet;
-      tdsqlite3TreeViewSelect(0, &sSelect, 0);
-    }
-  }
-  if( tdsqlite3WhereTrace & 0x100 ){ /* Display all terms of the WHERE clause */
-    tdsqlite3DebugPrintf("---- WHERE clause at start of analysis:\n");
-    tdsqlite3WhereClausePrint(sWLB.pWC);
-  }
-#endif
-
-  if( nTabList!=1 || whereShortCut(&sWLB)==0 ){
-    rc = whereLoopAddAll(&sWLB);
-    if( rc ) goto whereBeginError;
-  
-#ifdef WHERETRACE_ENABLED
-    if( tdsqlite3WhereTrace ){    /* Display all of the WhereLoop objects */
-      WhereLoop *p;
-      int i;
-      static const char zLabel[] = "0123456789abcdefghijklmnopqrstuvwyxz"
-                                             "ABCDEFGHIJKLMNOPQRSTUVWYXZ";
-      for(p=pWInfo->pLoops, i=0; p; p=p->pNextLoop, i++){
-        p->cId = zLabel[i%(sizeof(zLabel)-1)];
-        tdsqlite3WhereLoopPrint(p, sWLB.pWC);
-      }
-    }
-#endif
-  
-    wherePathSolver(pWInfo, 0);
-    if( db->mallocFailed ) goto whereBeginError;
-    if( pWInfo->pOrderBy ){
-       wherePathSolver(pWInfo, pWInfo->nRowOut+1);
-       if( db->mallocFailed ) goto whereBeginError;
-    }
-  }
-  if( pWInfo->pOrderBy==0 && (db->flags & SQLITE_ReverseOrder)!=0 ){
-     pWInfo->revMask = ALLBITS;
-  }
-  if( pParse->nErr || NEVER(db->mallocFailed) ){
-    goto whereBeginError;
-  }
-#ifdef WHERETRACE_ENABLED
-  if( tdsqlite3WhereTrace ){
-    tdsqlite3DebugPrintf("---- Solution nRow=%d", pWInfo->nRowOut);
-    if( pWInfo->nOBSat>0 ){
-      tdsqlite3DebugPrintf(" ORDERBY=%d,0x%llx", pWInfo->nOBSat, pWInfo->revMask);
-    }
-    switch( pWInfo->eDistinct ){
-      case WHERE_DISTINCT_UNIQUE: {
-        tdsqlite3DebugPrintf("  DISTINCT=unique");
-        break;
-      }
-      case WHERE_DISTINCT_ORDERED: {
-        tdsqlite3DebugPrintf("  DISTINCT=ordered");
-        break;
-      }
-      case WHERE_DISTINCT_UNORDERED: {
-        tdsqlite3DebugPrintf("  DISTINCT=unordered");
-        break;
-      }
-    }
-    tdsqlite3DebugPrintf("\n");
-    for(ii=0; ii<pWInfo->nLevel; ii++){
-      tdsqlite3WhereLoopPrint(pWInfo->a[ii].pWLoop, sWLB.pWC);
-    }
-  }
-#endif
-
-  /* Attempt to omit tables from the join that do not affect the result.
-  ** For a table to not affect the result, the following must be true:
-  **
-  **   1) The query must not be an aggregate.
-  **   2) The table must be the RHS of a LEFT JOIN.
-  **   3) Either the query must be DISTINCT, or else the ON or USING clause
-  **      must contain a constraint that limits the scan of the table to 
-  **      at most a single row.
-  **   4) The table must not be referenced by any part of the query apart
-  **      from its own USING or ON clause.
-  **
-  ** For example, given:
-  **
-  **     CREATE TABLE t1(ipk INTEGER PRIMARY KEY, v1);
-  **     CREATE TABLE t2(ipk INTEGER PRIMARY KEY, v2);
-  **     CREATE TABLE t3(ipk INTEGER PRIMARY KEY, v3);
-  **
-  ** then table t2 can be omitted from the following:
-  **
-  **     SELECT v1, v3 FROM t1 
-  **       LEFT JOIN t2 ON (t1.ipk=t2.ipk)
-  **       LEFT JOIN t3 ON (t1.ipk=t3.ipk)
-  **
-  ** or from:
-  **
-  **     SELECT DISTINCT v1, v3 FROM t1 
-  **       LEFT JOIN t2
-  **       LEFT JOIN t3 ON (t1.ipk=t3.ipk)
-  */
-  notReady = ~(Bitmask)0;
-  if( pWInfo->nLevel>=2
-   && pResultSet!=0               /* guarantees condition (1) above */
-   && OptimizationEnabled(db, SQLITE_OmitNoopJoin)
-  ){
-    int i;
-    Bitmask tabUsed = tdsqlite3WhereExprListUsage(pMaskSet, pResultSet);
-    if( sWLB.pOrderBy ){
-      tabUsed |= tdsqlite3WhereExprListUsage(pMaskSet, sWLB.pOrderBy);
-    }
-    for(i=pWInfo->nLevel-1; i>=1; i--){
-      WhereTerm *pTerm, *pEnd;
-      struct SrcList_item *pItem;
-      pLoop = pWInfo->a[i].pWLoop;
-      pItem = &pWInfo->pTabList->a[pLoop->iTab];
-      if( (pItem->fg.jointype & JT_LEFT)==0 ) continue;
-      if( (wctrlFlags & WHERE_WANT_DISTINCT)==0
-       && (pLoop->wsFlags & WHERE_ONEROW)==0
-      ){
-        continue;
-      }
-      if( (tabUsed & pLoop->maskSelf)!=0 ) continue;
-      pEnd = sWLB.pWC->a + sWLB.pWC->nTerm;
-      for(pTerm=sWLB.pWC->a; pTerm<pEnd; pTerm++){
-        if( (pTerm->prereqAll & pLoop->maskSelf)!=0 ){
-          if( !ExprHasProperty(pTerm->pExpr, EP_FromJoin)
-           || pTerm->pExpr->iRightJoinTable!=pItem->iCursor
-          ){
-            break;
-          }
-        }
-      }
-      if( pTerm<pEnd ) continue;
-      WHERETRACE(0xffff, ("-> drop loop %c not used\n", pLoop->cId));
-      notReady &= ~pLoop->maskSelf;
-      for(pTerm=sWLB.pWC->a; pTerm<pEnd; pTerm++){
-        if( (pTerm->prereqAll & pLoop->maskSelf)!=0 ){
-          pTerm->wtFlags |= TERM_CODED;
-        }
-      }
-      if( i!=pWInfo->nLevel-1 ){
-        int nByte = (pWInfo->nLevel-1-i) * sizeof(WhereLevel);
-        memmove(&pWInfo->a[i], &pWInfo->a[i+1], nByte);
-      }
-      pWInfo->nLevel--;
-      nTabList--;
-    }
-  }
-#if defined(WHERETRACE_ENABLED)
-  if( tdsqlite3WhereTrace & 0x100 ){ /* Display all terms of the WHERE clause */
-    tdsqlite3DebugPrintf("---- WHERE clause at end of analysis:\n");
-    tdsqlite3WhereClausePrint(sWLB.pWC);
-  }
-  WHERETRACE(0xffff,("*** Optimizer Finished ***\n"));
-#endif
-  pWInfo->pParse->nQueryLoop += pWInfo->nRowOut;
-
-  /* If the caller is an UPDATE or DELETE statement that is requesting
-  ** to use a one-pass algorithm, determine if this is appropriate.
-  **
-  ** A one-pass approach can be used if the caller has requested one
-  ** and either (a) the scan visits at most one row or (b) each
-  ** of the following are true:
-  **
-  **   * the caller has indicated that a one-pass approach can be used
-  **     with multiple rows (by setting WHERE_ONEPASS_MULTIROW), and
-  **   * the table is not a virtual table, and
-  **   * either the scan does not use the OR optimization or the caller
-  **     is a DELETE operation (WHERE_DUPLICATES_OK is only specified
-  **     for DELETE).
-  **
-  ** The last qualification is because an UPDATE statement uses
-  ** WhereInfo.aiCurOnePass[1] to determine whether or not it really can
-  ** use a one-pass approach, and this is not set accurately for scans
-  ** that use the OR optimization.
-  */
-  assert( (wctrlFlags & WHERE_ONEPASS_DESIRED)==0 || pWInfo->nLevel==1 );
-  if( (wctrlFlags & WHERE_ONEPASS_DESIRED)!=0 ){
-    int wsFlags = pWInfo->a[0].pWLoop->wsFlags;
-    int bOnerow = (wsFlags & WHERE_ONEROW)!=0;
-    assert( !(wsFlags & WHERE_VIRTUALTABLE) || IsVirtual(pTabList->a[0].pTab) );
-    if( bOnerow || (
-        0!=(wctrlFlags & WHERE_ONEPASS_MULTIROW)
-     && !IsVirtual(pTabList->a[0].pTab)
-     && (0==(wsFlags & WHERE_MULTI_OR) || (wctrlFlags & WHERE_DUPLICATES_OK))
-    )){
-      pWInfo->eOnePass = bOnerow ? ONEPASS_SINGLE : ONEPASS_MULTI;
-      if( HasRowid(pTabList->a[0].pTab) && (wsFlags & WHERE_IDX_ONLY) ){
-        if( wctrlFlags & WHERE_ONEPASS_MULTIROW ){
-          bFordelete = OPFLAG_FORDELETE;
-        }
-        pWInfo->a[0].pWLoop->wsFlags = (wsFlags & ~WHERE_IDX_ONLY);
-      }
-    }
-  }
-
-  /* Open all tables in the pTabList and any indices selected for
-  ** searching those tables.
-  */
-  for(ii=0, pLevel=pWInfo->a; ii<nTabList; ii++, pLevel++){
-    Table *pTab;     /* Table to open */
-    int iDb;         /* Index of database containing table/index */
-    struct SrcList_item *pTabItem;
-
-    pTabItem = &pTabList->a[pLevel->iFrom];
-    pTab = pTabItem->pTab;
-    iDb = tdsqlite3SchemaToIndex(db, pTab->pSchema);
-    pLoop = pLevel->pWLoop;
-    if( (pTab->tabFlags & TF_Ephemeral)!=0 || pTab->pSelect ){
-      /* Do nothing */
-    }else
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-    if( (pLoop->wsFlags & WHERE_VIRTUALTABLE)!=0 ){
-      const char *pVTab = (const char *)tdsqlite3GetVTable(db, pTab);
-      int iCur = pTabItem->iCursor;
-      tdsqlite3VdbeAddOp4(v, OP_VOpen, iCur, 0, 0, pVTab, P4_VTAB);
-    }else if( IsVirtual(pTab) ){
-      /* noop */
-    }else
-#endif
-    if( (pLoop->wsFlags & WHERE_IDX_ONLY)==0
-         && (wctrlFlags & WHERE_OR_SUBCLAUSE)==0 ){
-      int op = OP_OpenRead;
-      if( pWInfo->eOnePass!=ONEPASS_OFF ){
-        op = OP_OpenWrite;
-        pWInfo->aiCurOnePass[0] = pTabItem->iCursor;
-      };
-      tdsqlite3OpenTable(pParse, pTabItem->iCursor, iDb, pTab, op);
-      assert( pTabItem->iCursor==pLevel->iTabCur );
-      testcase( pWInfo->eOnePass==ONEPASS_OFF && pTab->nCol==BMS-1 );
-      testcase( pWInfo->eOnePass==ONEPASS_OFF && pTab->nCol==BMS );
-      if( pWInfo->eOnePass==ONEPASS_OFF 
-       && pTab->nCol<BMS
-       && (pTab->tabFlags & (TF_HasGenerated|TF_WithoutRowid))==0
-      ){
-        /* If we know that only a prefix of the record will be used,
-        ** it is advantageous to reduce the "column count" field in
-        ** the P4 operand of the OP_OpenRead/Write opcode. */
-        Bitmask b = pTabItem->colUsed;
-        int n = 0;
-        for(; b; b=b>>1, n++){}
-        tdsqlite3VdbeChangeP4(v, -1, SQLITE_INT_TO_PTR(n), P4_INT32);
-        assert( n<=pTab->nCol );
-      }
-#ifdef SQLITE_ENABLE_CURSOR_HINTS
-      if( pLoop->u.btree.pIndex!=0 ){
-        tdsqlite3VdbeChangeP5(v, OPFLAG_SEEKEQ|bFordelete);
-      }else
-#endif
-      {
-        tdsqlite3VdbeChangeP5(v, bFordelete);
-      }
-#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
-      tdsqlite3VdbeAddOp4Dup8(v, OP_ColumnsUsed, pTabItem->iCursor, 0, 0,
-                            (const u8*)&pTabItem->colUsed, P4_INT64);
-#endif
-    }else{
-      tdsqlite3TableLock(pParse, iDb, pTab->tnum, 0, pTab->zName);
-    }
-    if( pLoop->wsFlags & WHERE_INDEXED ){
-      Index *pIx = pLoop->u.btree.pIndex;
-      int iIndexCur;
-      int op = OP_OpenRead;
-      /* iAuxArg is always set to a positive value if ONEPASS is possible */
-      assert( iAuxArg!=0 || (pWInfo->wctrlFlags & WHERE_ONEPASS_DESIRED)==0 );
-      if( !HasRowid(pTab) && IsPrimaryKeyIndex(pIx)
-       && (wctrlFlags & WHERE_OR_SUBCLAUSE)!=0
-      ){
-        /* This is one term of an OR-optimization using the PRIMARY KEY of a
-        ** WITHOUT ROWID table.  No need for a separate index */
-        iIndexCur = pLevel->iTabCur;
-        op = 0;
-      }else if( pWInfo->eOnePass!=ONEPASS_OFF ){
-        Index *pJ = pTabItem->pTab->pIndex;
-        iIndexCur = iAuxArg;
-        assert( wctrlFlags & WHERE_ONEPASS_DESIRED );
-        while( ALWAYS(pJ) && pJ!=pIx ){
-          iIndexCur++;
-          pJ = pJ->pNext;
-        }
-        op = OP_OpenWrite;
-        pWInfo->aiCurOnePass[1] = iIndexCur;
-      }else if( iAuxArg && (wctrlFlags & WHERE_OR_SUBCLAUSE)!=0 ){
-        iIndexCur = iAuxArg;
-        op = OP_ReopenIdx;
-      }else{
-        iIndexCur = pParse->nTab++;
-      }
-      pLevel->iIdxCur = iIndexCur;
-      assert( pIx->pSchema==pTab->pSchema );
-      assert( iIndexCur>=0 );
-      if( op ){
-        tdsqlite3VdbeAddOp3(v, op, iIndexCur, pIx->tnum, iDb);
-        tdsqlite3VdbeSetP4KeyInfo(pParse, pIx);
-        if( (pLoop->wsFlags & WHERE_CONSTRAINT)!=0
-         && (pLoop->wsFlags & (WHERE_COLUMN_RANGE|WHERE_SKIPSCAN))==0
-         && (pLoop->wsFlags & WHERE_BIGNULL_SORT)==0
-         && (pWInfo->wctrlFlags&WHERE_ORDERBY_MIN)==0
-         && pWInfo->eDistinct!=WHERE_DISTINCT_ORDERED
-        ){
-          tdsqlite3VdbeChangeP5(v, OPFLAG_SEEKEQ); /* Hint to COMDB2 */
-        }
-        VdbeComment((v, "%s", pIx->zName));
-#ifdef SQLITE_ENABLE_COLUMN_USED_MASK
-        {
-          u64 colUsed = 0;
-          int ii, jj;
-          for(ii=0; ii<pIx->nColumn; ii++){
-            jj = pIx->aiColumn[ii];
-            if( jj<0 ) continue;
-            if( jj>63 ) jj = 63;
-            if( (pTabItem->colUsed & MASKBIT(jj))==0 ) continue;
-            colUsed |= ((u64)1)<<(ii<63 ? ii : 63);
-          }
-          tdsqlite3VdbeAddOp4Dup8(v, OP_ColumnsUsed, iIndexCur, 0, 0,
-                                (u8*)&colUsed, P4_INT64);
-        }
-#endif /* SQLITE_ENABLE_COLUMN_USED_MASK */
-      }
-    }
-    if( iDb>=0 ) tdsqlite3CodeVerifySchema(pParse, iDb);
-  }
-  pWInfo->iTop = tdsqlite3VdbeCurrentAddr(v);
-  if( db->mallocFailed ) goto whereBeginError;
-
-  /* Generate the code to do the search.  Each iteration of the for
-  ** loop below generates code for a single nested loop of the VM
-  ** program.
-  */
-  for(ii=0; ii<nTabList; ii++){
-    int addrExplain;
-    int wsFlags;
-    pLevel = &pWInfo->a[ii];
-    wsFlags = pLevel->pWLoop->wsFlags;
-#ifndef SQLITE_OMIT_AUTOMATIC_INDEX
-    if( (pLevel->pWLoop->wsFlags & WHERE_AUTO_INDEX)!=0 ){
-      constructAutomaticIndex(pParse, &pWInfo->sWC,
-                &pTabList->a[pLevel->iFrom], notReady, pLevel);
-      if( db->mallocFailed ) goto whereBeginError;
-    }
-#endif
-    addrExplain = tdsqlite3WhereExplainOneScan(
-        pParse, pTabList, pLevel, wctrlFlags
-    );
-    pLevel->addrBody = tdsqlite3VdbeCurrentAddr(v);
-    notReady = tdsqlite3WhereCodeOneLoopStart(pParse,v,pWInfo,ii,pLevel,notReady);
-    pWInfo->iContinue = pLevel->addrCont;
-    if( (wsFlags&WHERE_MULTI_OR)==0 && (wctrlFlags&WHERE_OR_SUBCLAUSE)==0 ){
-      tdsqlite3WhereAddScanStatus(v, pTabList, pLevel, addrExplain);
-    }
-  }
-
-  /* Done. */
-  VdbeModuleComment((v, "Begin WHERE-core"));
-  return pWInfo;
-
-  /* Jump here if malloc fails */
-whereBeginError:
-  if( pWInfo ){
-    pParse->nQueryLoop = pWInfo->savedNQueryLoop;
-    whereInfoFree(db, pWInfo);
-  }
-  return 0;
-}
-
-/*
-** Part of tdsqlite3WhereEnd() will rewrite opcodes to reference the
-** index rather than the main table.  In SQLITE_DEBUG mode, we want
-** to trace those changes if PRAGMA vdbe_addoptrace=on.  This routine
-** does that.
-*/
-#ifndef SQLITE_DEBUG
-# define OpcodeRewriteTrace(D,K,P) /* no-op */
-#else
-# define OpcodeRewriteTrace(D,K,P) tdsqlite3WhereOpcodeRewriteTrace(D,K,P)
-  static void tdsqlite3WhereOpcodeRewriteTrace(
-    tdsqlite3 *db,
-    int pc,
-    VdbeOp *pOp
-  ){
-    if( (db->flags & SQLITE_VdbeAddopTrace)==0 ) return;
-    tdsqlite3VdbePrintOp(0, pc, pOp);
-  }
-#endif
-
-/*
-** Generate the end of the WHERE loop.  See comments on 
-** tdsqlite3WhereBegin() for additional information.
-*/
-SQLITE_PRIVATE void tdsqlite3WhereEnd(WhereInfo *pWInfo){
-  Parse *pParse = pWInfo->pParse;
-  Vdbe *v = pParse->pVdbe;
-  int i;
-  WhereLevel *pLevel;
-  WhereLoop *pLoop;
-  SrcList *pTabList = pWInfo->pTabList;
-  tdsqlite3 *db = pParse->db;
-
-  /* Generate loop termination code.
-  */
-  VdbeModuleComment((v, "End WHERE-core"));
-  for(i=pWInfo->nLevel-1; i>=0; i--){
-    int addr;
-    pLevel = &pWInfo->a[i];
-    pLoop = pLevel->pWLoop;
-    if( pLevel->op!=OP_Noop ){
-#ifndef SQLITE_DISABLE_SKIPAHEAD_DISTINCT
-      int addrSeek = 0;
-      Index *pIdx;
-      int n;
-      if( pWInfo->eDistinct==WHERE_DISTINCT_ORDERED
-       && i==pWInfo->nLevel-1  /* Ticket [ef9318757b152e3] 2017-10-21 */
-       && (pLoop->wsFlags & WHERE_INDEXED)!=0
-       && (pIdx = pLoop->u.btree.pIndex)->hasStat1
-       && (n = pLoop->u.btree.nDistinctCol)>0
-       && pIdx->aiRowLogEst[n]>=36
-      ){
-        int r1 = pParse->nMem+1;
-        int j, op;
-        for(j=0; j<n; j++){
-          tdsqlite3VdbeAddOp3(v, OP_Column, pLevel->iIdxCur, j, r1+j);
-        }
-        pParse->nMem += n+1;
-        op = pLevel->op==OP_Prev ? OP_SeekLT : OP_SeekGT;
-        addrSeek = tdsqlite3VdbeAddOp4Int(v, op, pLevel->iIdxCur, 0, r1, n);
-        VdbeCoverageIf(v, op==OP_SeekLT);
-        VdbeCoverageIf(v, op==OP_SeekGT);
-        tdsqlite3VdbeAddOp2(v, OP_Goto, 1, pLevel->p2);
-      }
-#endif /* SQLITE_DISABLE_SKIPAHEAD_DISTINCT */
-      /* The common case: Advance to the next row */
-      tdsqlite3VdbeResolveLabel(v, pLevel->addrCont);
-      tdsqlite3VdbeAddOp3(v, pLevel->op, pLevel->p1, pLevel->p2, pLevel->p3);
-      tdsqlite3VdbeChangeP5(v, pLevel->p5);
-      VdbeCoverage(v);
-      VdbeCoverageIf(v, pLevel->op==OP_Next);
-      VdbeCoverageIf(v, pLevel->op==OP_Prev);
-      VdbeCoverageIf(v, pLevel->op==OP_VNext);
-      if( pLevel->regBignull ){
-        tdsqlite3VdbeResolveLabel(v, pLevel->addrBignull);
-        tdsqlite3VdbeAddOp2(v, OP_DecrJumpZero, pLevel->regBignull, pLevel->p2-1);
-        VdbeCoverage(v);
-      }
-#ifndef SQLITE_DISABLE_SKIPAHEAD_DISTINCT
-      if( addrSeek ) tdsqlite3VdbeJumpHere(v, addrSeek);
-#endif
-    }else{
-      tdsqlite3VdbeResolveLabel(v, pLevel->addrCont);
-    }
-    if( pLoop->wsFlags & WHERE_IN_ABLE && pLevel->u.in.nIn>0 ){
-      struct InLoop *pIn;
-      int j;
-      tdsqlite3VdbeResolveLabel(v, pLevel->addrNxt);
-      for(j=pLevel->u.in.nIn, pIn=&pLevel->u.in.aInLoop[j-1]; j>0; j--, pIn--){
-        tdsqlite3VdbeJumpHere(v, pIn->addrInTop+1);
-        if( pIn->eEndLoopOp!=OP_Noop ){
-          if( pIn->nPrefix ){
-            assert( pLoop->wsFlags & WHERE_IN_EARLYOUT );
-            if( (pLoop->wsFlags & WHERE_VIRTUALTABLE)==0 ){
-              tdsqlite3VdbeAddOp4Int(v, OP_IfNoHope, pLevel->iIdxCur,
-                  tdsqlite3VdbeCurrentAddr(v)+2+(pLevel->iLeftJoin!=0),
-                  pIn->iBase, pIn->nPrefix);
-              VdbeCoverage(v);
-            }
-            if( pLevel->iLeftJoin ){
-              /* For LEFT JOIN queries, cursor pIn->iCur may not have been
-              ** opened yet. This occurs for WHERE clauses such as
-              ** "a = ? AND b IN (...)", where the index is on (a, b). If
-              ** the RHS of the (a=?) is NULL, then the "b IN (...)" may
-              ** never have been coded, but the body of the loop run to
-              ** return the null-row. So, if the cursor is not open yet,
-              ** jump over the OP_Next or OP_Prev instruction about to
-              ** be coded.  */
-              tdsqlite3VdbeAddOp2(v, OP_IfNotOpen, pIn->iCur, 
-                  tdsqlite3VdbeCurrentAddr(v) + 2
-              );
-              VdbeCoverage(v);
-            }
-          }
-          tdsqlite3VdbeAddOp2(v, pIn->eEndLoopOp, pIn->iCur, pIn->addrInTop);
-          VdbeCoverage(v);
-          VdbeCoverageIf(v, pIn->eEndLoopOp==OP_Prev);
-          VdbeCoverageIf(v, pIn->eEndLoopOp==OP_Next);
-        }
-        tdsqlite3VdbeJumpHere(v, pIn->addrInTop-1);
-      }
-    }
-    tdsqlite3VdbeResolveLabel(v, pLevel->addrBrk);
-    if( pLevel->addrSkip ){
-      tdsqlite3VdbeGoto(v, pLevel->addrSkip);
-      VdbeComment((v, "next skip-scan on %s", pLoop->u.btree.pIndex->zName));
-      tdsqlite3VdbeJumpHere(v, pLevel->addrSkip);
-      tdsqlite3VdbeJumpHere(v, pLevel->addrSkip-2);
-    }
-#ifndef SQLITE_LIKE_DOESNT_MATCH_BLOBS
-    if( pLevel->addrLikeRep ){
-      tdsqlite3VdbeAddOp2(v, OP_DecrJumpZero, (int)(pLevel->iLikeRepCntr>>1),
-                        pLevel->addrLikeRep);
-      VdbeCoverage(v);
-    }
-#endif
-    if( pLevel->iLeftJoin ){
-      int ws = pLoop->wsFlags;
-      addr = tdsqlite3VdbeAddOp1(v, OP_IfPos, pLevel->iLeftJoin); VdbeCoverage(v);
-      assert( (ws & WHERE_IDX_ONLY)==0 || (ws & WHERE_INDEXED)!=0 );
-      if( (ws & WHERE_IDX_ONLY)==0 ){
-        assert( pLevel->iTabCur==pTabList->a[pLevel->iFrom].iCursor );
-        tdsqlite3VdbeAddOp1(v, OP_NullRow, pLevel->iTabCur);
-      }
-      if( (ws & WHERE_INDEXED) 
-       || ((ws & WHERE_MULTI_OR) && pLevel->u.pCovidx) 
-      ){
-        tdsqlite3VdbeAddOp1(v, OP_NullRow, pLevel->iIdxCur);
-      }
-      if( pLevel->op==OP_Return ){
-        tdsqlite3VdbeAddOp2(v, OP_Gosub, pLevel->p1, pLevel->addrFirst);
-      }else{
-        tdsqlite3VdbeGoto(v, pLevel->addrFirst);
-      }
-      tdsqlite3VdbeJumpHere(v, addr);
-    }
-    VdbeModuleComment((v, "End WHERE-loop%d: %s", i,
-                     pWInfo->pTabList->a[pLevel->iFrom].pTab->zName));
-  }
-
-  /* The "break" point is here, just past the end of the outer loop.
-  ** Set it.
-  */
-  tdsqlite3VdbeResolveLabel(v, pWInfo->iBreak);
-
-  assert( pWInfo->nLevel<=pTabList->nSrc );
-  for(i=0, pLevel=pWInfo->a; i<pWInfo->nLevel; i++, pLevel++){
-    int k, last;
-    VdbeOp *pOp;
-    Index *pIdx = 0;
-    struct SrcList_item *pTabItem = &pTabList->a[pLevel->iFrom];
-    Table *pTab = pTabItem->pTab;
-    assert( pTab!=0 );
-    pLoop = pLevel->pWLoop;
-
-    /* For a co-routine, change all OP_Column references to the table of
-    ** the co-routine into OP_Copy of result contained in a register.
-    ** OP_Rowid becomes OP_Null.
-    */
-    if( pTabItem->fg.viaCoroutine ){
-      testcase( pParse->db->mallocFailed );
-      translateColumnToCopy(pParse, pLevel->addrBody, pLevel->iTabCur,
-                            pTabItem->regResult, 0);
-      continue;
-    }
-
-#ifdef SQLITE_ENABLE_EARLY_CURSOR_CLOSE
-    /* Close all of the cursors that were opened by tdsqlite3WhereBegin.
-    ** Except, do not close cursors that will be reused by the OR optimization
-    ** (WHERE_OR_SUBCLAUSE).  And do not close the OP_OpenWrite cursors
-    ** created for the ONEPASS optimization.
-    */
-    if( (pTab->tabFlags & TF_Ephemeral)==0
-     && pTab->pSelect==0
-     && (pWInfo->wctrlFlags & WHERE_OR_SUBCLAUSE)==0
-    ){
-      int ws = pLoop->wsFlags;
-      if( pWInfo->eOnePass==ONEPASS_OFF && (ws & WHERE_IDX_ONLY)==0 ){
-        tdsqlite3VdbeAddOp1(v, OP_Close, pTabItem->iCursor);
-      }
-      if( (ws & WHERE_INDEXED)!=0
-       && (ws & (WHERE_IPK|WHERE_AUTO_INDEX))==0 
-       && pLevel->iIdxCur!=pWInfo->aiCurOnePass[1]
-      ){
-        tdsqlite3VdbeAddOp1(v, OP_Close, pLevel->iIdxCur);
-      }
-    }
-#endif
-
-    /* If this scan uses an index, make VDBE code substitutions to read data
-    ** from the index instead of from the table where possible.  In some cases
-    ** this optimization prevents the table from ever being read, which can
-    ** yield a significant performance boost.
-    ** 
-    ** Calls to the code generator in between tdsqlite3WhereBegin and
-    ** tdsqlite3WhereEnd will have created code that references the table
-    ** directly.  This loop scans all that code looking for opcodes
-    ** that reference the table and converts them into opcodes that
-    ** reference the index.
-    */
-    if( pLoop->wsFlags & (WHERE_INDEXED|WHERE_IDX_ONLY) ){
-      pIdx = pLoop->u.btree.pIndex;
-    }else if( pLoop->wsFlags & WHERE_MULTI_OR ){
-      pIdx = pLevel->u.pCovidx;
-    }
-    if( pIdx
-     && (pWInfo->eOnePass==ONEPASS_OFF || !HasRowid(pIdx->pTable))
-     && !db->mallocFailed
-    ){
-      last = tdsqlite3VdbeCurrentAddr(v);
-      k = pLevel->addrBody;
-#ifdef SQLITE_DEBUG
-      if( db->flags & SQLITE_VdbeAddopTrace ){
-        printf("TRANSLATE opcodes in range %d..%d\n", k, last-1);
-      }
-#endif
-      pOp = tdsqlite3VdbeGetOp(v, k);
-      for(; k<last; k++, pOp++){
-        if( pOp->p1!=pLevel->iTabCur ) continue;
-        if( pOp->opcode==OP_Column
-#ifdef SQLITE_ENABLE_OFFSET_SQL_FUNC
-         || pOp->opcode==OP_Offset
-#endif
-        ){
-          int x = pOp->p2;
-          assert( pIdx->pTable==pTab );
-          if( !HasRowid(pTab) ){
-            Index *pPk = tdsqlite3PrimaryKeyIndex(pTab);
-            x = pPk->aiColumn[x];
-            assert( x>=0 );
-          }else{
-            testcase( x!=tdsqlite3StorageColumnToTable(pTab,x) );
-            x = tdsqlite3StorageColumnToTable(pTab,x);
-          }
-          x = tdsqlite3TableColumnToIndex(pIdx, x);
-          if( x>=0 ){
-            pOp->p2 = x;
-            pOp->p1 = pLevel->iIdxCur;
-            OpcodeRewriteTrace(db, k, pOp);
-          }
-          assert( (pLoop->wsFlags & WHERE_IDX_ONLY)==0 || x>=0 
-              || pWInfo->eOnePass );
-        }else if( pOp->opcode==OP_Rowid ){
-          pOp->p1 = pLevel->iIdxCur;
-          pOp->opcode = OP_IdxRowid;
-          OpcodeRewriteTrace(db, k, pOp);
-        }else if( pOp->opcode==OP_IfNullRow ){
-          pOp->p1 = pLevel->iIdxCur;
-          OpcodeRewriteTrace(db, k, pOp);
-        }
-      }
-#ifdef SQLITE_DEBUG
-      if( db->flags & SQLITE_VdbeAddopTrace ) printf("TRANSLATE complete\n");
-#endif
-    }
-  }
-
-  /* Undo all Expr node modifications */
-  while( pWInfo->pExprMods ){
-    WhereExprMod *p = pWInfo->pExprMods;
-    pWInfo->pExprMods = p->pNext;
-    memcpy(p->pExpr, &p->orig, sizeof(p->orig));
-    tdsqlite3DbFree(db, p);
-  }
-
-  /* Final cleanup
-  */
-  pParse->nQueryLoop = pWInfo->savedNQueryLoop;
-  whereInfoFree(db, pWInfo);
-  return;
-}
-
-/************** End of where.c ***********************************************/
-/************** Begin file window.c ******************************************/
-/*
-** 2018 May 08
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-*/
-/* #include "sqliteInt.h" */
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-
-/*
-** SELECT REWRITING
-**
-**   Any SELECT statement that contains one or more window functions in
-**   either the select list or ORDER BY clause (the only two places window
-**   functions may be used) is transformed by function tdsqlite3WindowRewrite()
-**   in order to support window function processing. For example, with the
-**   schema:
-**
-**     CREATE TABLE t1(a, b, c, d, e, f, g);
-**
-**   the statement:
-**
-**     SELECT a+1, max(b) OVER (PARTITION BY c ORDER BY d) FROM t1 ORDER BY e;
-**
-**   is transformed to:
-**
-**     SELECT a+1, max(b) OVER (PARTITION BY c ORDER BY d) FROM (
-**         SELECT a, e, c, d, b FROM t1 ORDER BY c, d
-**     ) ORDER BY e;
-**
-**   The flattening optimization is disabled when processing this transformed
-**   SELECT statement. This allows the implementation of the window function
-**   (in this case max()) to process rows sorted in order of (c, d), which
-**   makes things easier for obvious reasons. More generally:
-**
-**     * FROM, WHERE, GROUP BY and HAVING clauses are all moved to 
-**       the sub-query.
-**
-**     * ORDER BY, LIMIT and OFFSET remain part of the parent query.
-**
-**     * Terminals from each of the expression trees that make up the 
-**       select-list and ORDER BY expressions in the parent query are
-**       selected by the sub-query. For the purposes of the transformation,
-**       terminals are column references and aggregate functions.
-**
-**   If there is more than one window function in the SELECT that uses
-**   the same window declaration (the OVER bit), then a single scan may
-**   be used to process more than one window function. For example:
-**
-**     SELECT max(b) OVER (PARTITION BY c ORDER BY d), 
-**            min(e) OVER (PARTITION BY c ORDER BY d) 
-**     FROM t1;
-**
-**   is transformed in the same way as the example above. However:
-**
-**     SELECT max(b) OVER (PARTITION BY c ORDER BY d), 
-**            min(e) OVER (PARTITION BY a ORDER BY b) 
-**     FROM t1;
-**
-**   Must be transformed to:
-**
-**     SELECT max(b) OVER (PARTITION BY c ORDER BY d) FROM (
-**         SELECT e, min(e) OVER (PARTITION BY a ORDER BY b), c, d, b FROM
-**           SELECT a, e, c, d, b FROM t1 ORDER BY a, b
-**         ) ORDER BY c, d
-**     ) ORDER BY e;
-**
-**   so that both min() and max() may process rows in the order defined by
-**   their respective window declarations.
-**
-** INTERFACE WITH SELECT.C
-**
-**   When processing the rewritten SELECT statement, code in select.c calls
-**   tdsqlite3WhereBegin() to begin iterating through the results of the
-**   sub-query, which is always implemented as a co-routine. It then calls
-**   tdsqlite3WindowCodeStep() to process rows and finish the scan by calling
-**   tdsqlite3WhereEnd().
-**
-**   tdsqlite3WindowCodeStep() generates VM code so that, for each row returned
-**   by the sub-query a sub-routine (OP_Gosub) coded by select.c is invoked.
-**   When the sub-routine is invoked:
-**
-**     * The results of all window-functions for the row are stored
-**       in the associated Window.regResult registers.
-**
-**     * The required terminal values are stored in the current row of
-**       temp table Window.iEphCsr.
-**
-**   In some cases, depending on the window frame and the specific window
-**   functions invoked, tdsqlite3WindowCodeStep() caches each entire partition
-**   in a temp table before returning any rows. In other cases it does not.
-**   This detail is encapsulated within this file, the code generated by
-**   select.c is the same in either case.
-**
-** BUILT-IN WINDOW FUNCTIONS
-**
-**   This implementation features the following built-in window functions:
-**
-**     row_number()
-**     rank()
-**     dense_rank()
-**     percent_rank()
-**     cume_dist()
-**     ntile(N)
-**     lead(expr [, offset [, default]])
-**     lag(expr [, offset [, default]])
-**     first_value(expr)
-**     last_value(expr)
-**     nth_value(expr, N)
-**   
-**   These are the same built-in window functions supported by Postgres. 
-**   Although the behaviour of aggregate window functions (functions that
-**   can be used as either aggregates or window funtions) allows them to
-**   be implemented using an API, built-in window functions are much more
-**   esoteric. Additionally, some window functions (e.g. nth_value()) 
-**   may only be implemented by caching the entire partition in memory.
-**   As such, some built-in window functions use the same API as aggregate
-**   window functions and some are implemented directly using VDBE 
-**   instructions. Additionally, for those functions that use the API, the
-**   window frame is sometimes modified before the SELECT statement is
-**   rewritten. For example, regardless of the specified window frame, the
-**   row_number() function always uses:
-**
-**     ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
-**
-**   See tdsqlite3WindowUpdate() for details.
-**
-**   As well as some of the built-in window functions, aggregate window
-**   functions min() and max() are implemented using VDBE instructions if
-**   the start of the window frame is declared as anything other than 
-**   UNBOUNDED PRECEDING.
-*/
-
-/*
-** Implementation of built-in window function row_number(). Assumes that the
-** window frame has been coerced to:
-**
-**   ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
-*/
-static void row_numberStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  i64 *p = (i64*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ) (*p)++;
-  UNUSED_PARAMETER(nArg);
-  UNUSED_PARAMETER(apArg);
-}
-static void row_numberValueFunc(tdsqlite3_context *pCtx){
-  i64 *p = (i64*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  tdsqlite3_result_int64(pCtx, (p ? *p : 0));
-}
-
-/*
-** Context object type used by rank(), dense_rank(), percent_rank() and
-** cume_dist().
-*/
-struct CallCount {
-  i64 nValue;
-  i64 nStep;
-  i64 nTotal;
-};
-
-/*
-** Implementation of built-in window function dense_rank(). Assumes that
-** the window frame has been set to:
-**
-**   RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW 
-*/
-static void dense_rankStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct CallCount *p;
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ) p->nStep = 1;
-  UNUSED_PARAMETER(nArg);
-  UNUSED_PARAMETER(apArg);
-}
-static void dense_rankValueFunc(tdsqlite3_context *pCtx){
-  struct CallCount *p;
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    if( p->nStep ){
-      p->nValue++;
-      p->nStep = 0;
-    }
-    tdsqlite3_result_int64(pCtx, p->nValue);
-  }
-}
-
-/*
-** Implementation of built-in window function nth_value(). This
-** implementation is used in "slow mode" only - when the EXCLUDE clause
-** is not set to the default value "NO OTHERS".
-*/
-struct NthValueCtx {
-  i64 nStep;
-  tdsqlite3_value *pValue;
-};
-static void nth_valueStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct NthValueCtx *p;
-  p = (struct NthValueCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    i64 iVal;
-    switch( tdsqlite3_value_numeric_type(apArg[1]) ){
-      case SQLITE_INTEGER:
-        iVal = tdsqlite3_value_int64(apArg[1]);
-        break;
-      case SQLITE_FLOAT: {
-        double fVal = tdsqlite3_value_double(apArg[1]);
-        if( ((i64)fVal)!=fVal ) goto error_out;
-        iVal = (i64)fVal;
-        break;
-      }
-      default:
-        goto error_out;
-    }
-    if( iVal<=0 ) goto error_out;
-
-    p->nStep++;
-    if( iVal==p->nStep ){
-      p->pValue = tdsqlite3_value_dup(apArg[0]);
-      if( !p->pValue ){
-        tdsqlite3_result_error_nomem(pCtx);
-      }
-    }
-  }
-  UNUSED_PARAMETER(nArg);
-  UNUSED_PARAMETER(apArg);
-  return;
-
- error_out:
-  tdsqlite3_result_error(
-      pCtx, "second argument to nth_value must be a positive integer", -1
-  );
-}
-static void nth_valueFinalizeFunc(tdsqlite3_context *pCtx){
-  struct NthValueCtx *p;
-  p = (struct NthValueCtx*)tdsqlite3_aggregate_context(pCtx, 0);
-  if( p && p->pValue ){
-    tdsqlite3_result_value(pCtx, p->pValue);
-    tdsqlite3_value_free(p->pValue);
-    p->pValue = 0;
-  }
-}
-#define nth_valueInvFunc noopStepFunc
-#define nth_valueValueFunc noopValueFunc
-
-static void first_valueStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct NthValueCtx *p;
-  p = (struct NthValueCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p && p->pValue==0 ){
-    p->pValue = tdsqlite3_value_dup(apArg[0]);
-    if( !p->pValue ){
-      tdsqlite3_result_error_nomem(pCtx);
-    }
-  }
-  UNUSED_PARAMETER(nArg);
-  UNUSED_PARAMETER(apArg);
-}
-static void first_valueFinalizeFunc(tdsqlite3_context *pCtx){
-  struct NthValueCtx *p;
-  p = (struct NthValueCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p && p->pValue ){
-    tdsqlite3_result_value(pCtx, p->pValue);
-    tdsqlite3_value_free(p->pValue);
-    p->pValue = 0;
-  }
-}
-#define first_valueInvFunc noopStepFunc
-#define first_valueValueFunc noopValueFunc
-
-/*
-** Implementation of built-in window function rank(). Assumes that
-** the window frame has been set to:
-**
-**   RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW 
-*/
-static void rankStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct CallCount *p;
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    p->nStep++;
-    if( p->nValue==0 ){
-      p->nValue = p->nStep;
-    }
-  }
-  UNUSED_PARAMETER(nArg);
-  UNUSED_PARAMETER(apArg);
-}
-static void rankValueFunc(tdsqlite3_context *pCtx){
-  struct CallCount *p;
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    tdsqlite3_result_int64(pCtx, p->nValue);
-    p->nValue = 0;
-  }
-}
-
-/*
-** Implementation of built-in window function percent_rank(). Assumes that
-** the window frame has been set to:
-**
-**   GROUPS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
-*/
-static void percent_rankStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct CallCount *p;
-  UNUSED_PARAMETER(nArg); assert( nArg==0 );
-  UNUSED_PARAMETER(apArg);
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    p->nTotal++;
-  }
-}
-static void percent_rankInvFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct CallCount *p;
-  UNUSED_PARAMETER(nArg); assert( nArg==0 );
-  UNUSED_PARAMETER(apArg);
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  p->nStep++;
-}
-static void percent_rankValueFunc(tdsqlite3_context *pCtx){
-  struct CallCount *p;
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    p->nValue = p->nStep;
-    if( p->nTotal>1 ){
-      double r = (double)p->nValue / (double)(p->nTotal-1);
-      tdsqlite3_result_double(pCtx, r);
-    }else{
-      tdsqlite3_result_double(pCtx, 0.0);
-    }
-  }
-}
-#define percent_rankFinalizeFunc percent_rankValueFunc
-
-/*
-** Implementation of built-in window function cume_dist(). Assumes that
-** the window frame has been set to:
-**
-**   GROUPS BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING
-*/
-static void cume_distStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct CallCount *p;
-  UNUSED_PARAMETER(nArg); assert( nArg==0 );
-  UNUSED_PARAMETER(apArg);
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    p->nTotal++;
-  }
-}
-static void cume_distInvFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct CallCount *p;
-  UNUSED_PARAMETER(nArg); assert( nArg==0 );
-  UNUSED_PARAMETER(apArg);
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  p->nStep++;
-}
-static void cume_distValueFunc(tdsqlite3_context *pCtx){
-  struct CallCount *p;
-  p = (struct CallCount*)tdsqlite3_aggregate_context(pCtx, 0);
-  if( p ){
-    double r = (double)(p->nStep) / (double)(p->nTotal);
-    tdsqlite3_result_double(pCtx, r);
-  }
-}
-#define cume_distFinalizeFunc cume_distValueFunc
-
-/*
-** Context object for ntile() window function.
-*/
-struct NtileCtx {
-  i64 nTotal;                     /* Total rows in partition */
-  i64 nParam;                     /* Parameter passed to ntile(N) */
-  i64 iRow;                       /* Current row */
-};
-
-/*
-** Implementation of ntile(). This assumes that the window frame has
-** been coerced to:
-**
-**   ROWS CURRENT ROW AND UNBOUNDED FOLLOWING
-*/
-static void ntileStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct NtileCtx *p;
-  assert( nArg==1 ); UNUSED_PARAMETER(nArg);
-  p = (struct NtileCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    if( p->nTotal==0 ){
-      p->nParam = tdsqlite3_value_int64(apArg[0]);
-      if( p->nParam<=0 ){
-        tdsqlite3_result_error(
-            pCtx, "argument of ntile must be a positive integer", -1
-        );
-      }
-    }
-    p->nTotal++;
-  }
-}
-static void ntileInvFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct NtileCtx *p;
-  assert( nArg==1 ); UNUSED_PARAMETER(nArg);
-  UNUSED_PARAMETER(apArg);
-  p = (struct NtileCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  p->iRow++;
-}
-static void ntileValueFunc(tdsqlite3_context *pCtx){
-  struct NtileCtx *p;
-  p = (struct NtileCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p && p->nParam>0 ){
-    int nSize = (p->nTotal / p->nParam);
-    if( nSize==0 ){
-      tdsqlite3_result_int64(pCtx, p->iRow+1);
-    }else{
-      i64 nLarge = p->nTotal - p->nParam*nSize;
-      i64 iSmall = nLarge*(nSize+1);
-      i64 iRow = p->iRow;
-
-      assert( (nLarge*(nSize+1) + (p->nParam-nLarge)*nSize)==p->nTotal );
-
-      if( iRow<iSmall ){
-        tdsqlite3_result_int64(pCtx, 1 + iRow/(nSize+1));
-      }else{
-        tdsqlite3_result_int64(pCtx, 1 + nLarge + (iRow-iSmall)/nSize);
-      }
-    }
-  }
-}
-#define ntileFinalizeFunc ntileValueFunc
-
-/*
-** Context object for last_value() window function.
-*/
-struct LastValueCtx {
-  tdsqlite3_value *pVal;
-  int nVal;
-};
-
-/*
-** Implementation of last_value().
-*/
-static void last_valueStepFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct LastValueCtx *p;
-  UNUSED_PARAMETER(nArg);
-  p = (struct LastValueCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p ){
-    tdsqlite3_value_free(p->pVal);
-    p->pVal = tdsqlite3_value_dup(apArg[0]);
-    if( p->pVal==0 ){
-      tdsqlite3_result_error_nomem(pCtx);
-    }else{
-      p->nVal++;
-    }
-  }
-}
-static void last_valueInvFunc(
-  tdsqlite3_context *pCtx, 
-  int nArg,
-  tdsqlite3_value **apArg
-){
-  struct LastValueCtx *p;
-  UNUSED_PARAMETER(nArg);
-  UNUSED_PARAMETER(apArg);
-  p = (struct LastValueCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( ALWAYS(p) ){
-    p->nVal--;
-    if( p->nVal==0 ){
-      tdsqlite3_value_free(p->pVal);
-      p->pVal = 0;
-    }
-  }
-}
-static void last_valueValueFunc(tdsqlite3_context *pCtx){
-  struct LastValueCtx *p;
-  p = (struct LastValueCtx*)tdsqlite3_aggregate_context(pCtx, 0);
-  if( p && p->pVal ){
-    tdsqlite3_result_value(pCtx, p->pVal);
-  }
-}
-static void last_valueFinalizeFunc(tdsqlite3_context *pCtx){
-  struct LastValueCtx *p;
-  p = (struct LastValueCtx*)tdsqlite3_aggregate_context(pCtx, sizeof(*p));
-  if( p && p->pVal ){
-    tdsqlite3_result_value(pCtx, p->pVal);
-    tdsqlite3_value_free(p->pVal);
-    p->pVal = 0;
-  }
-}
-
-/*
-** Static names for the built-in window function names.  These static
-** names are used, rather than string literals, so that FuncDef objects
-** can be associated with a particular window function by direct
-** comparison of the zName pointer.  Example:
-**
-**       if( pFuncDef->zName==row_valueName ){ ... }
-*/
-static const char row_numberName[] =   "row_number";
-static const char dense_rankName[] =   "dense_rank";
-static const char rankName[] =         "rank";
-static const char percent_rankName[] = "percent_rank";
-static const char cume_distName[] =    "cume_dist";
-static const char ntileName[] =        "ntile";
-static const char last_valueName[] =   "last_value";
-static const char nth_valueName[] =    "nth_value";
-static const char first_valueName[] =  "first_value";
-static const char leadName[] =         "lead";
-static const char lagName[] =          "lag";
-
-/*
-** No-op implementations of xStep() and xFinalize().  Used as place-holders
-** for built-in window functions that never call those interfaces.
-**
-** The noopValueFunc() is called but is expected to do nothing.  The
-** noopStepFunc() is never called, and so it is marked with NO_TEST to
-** let the test coverage routine know not to expect this function to be
-** invoked.
-*/
-static void noopStepFunc(    /*NO_TEST*/
-  tdsqlite3_context *p,        /*NO_TEST*/
-  int n,                     /*NO_TEST*/
-  tdsqlite3_value **a          /*NO_TEST*/
-){                           /*NO_TEST*/
-  UNUSED_PARAMETER(p);       /*NO_TEST*/
-  UNUSED_PARAMETER(n);       /*NO_TEST*/
-  UNUSED_PARAMETER(a);       /*NO_TEST*/
-  assert(0);                 /*NO_TEST*/
-}                            /*NO_TEST*/
-static void noopValueFunc(tdsqlite3_context *p){ UNUSED_PARAMETER(p); /*no-op*/ }
-
-/* Window functions that use all window interfaces: xStep, xFinal,
-** xValue, and xInverse */
-#define WINDOWFUNCALL(name,nArg,extra) {                                   \
-  nArg, (SQLITE_UTF8|SQLITE_FUNC_WINDOW|extra), 0, 0,                      \
-  name ## StepFunc, name ## FinalizeFunc, name ## ValueFunc,               \
-  name ## InvFunc, name ## Name, {0}                                       \
-}
-
-/* Window functions that are implemented using bytecode and thus have
-** no-op routines for their methods */
-#define WINDOWFUNCNOOP(name,nArg,extra) {                                  \
-  nArg, (SQLITE_UTF8|SQLITE_FUNC_WINDOW|extra), 0, 0,                      \
-  noopStepFunc, noopValueFunc, noopValueFunc,                              \
-  noopStepFunc, name ## Name, {0}                                          \
-}
-
-/* Window functions that use all window interfaces: xStep, the
-** same routine for xFinalize and xValue and which never call
-** xInverse. */
-#define WINDOWFUNCX(name,nArg,extra) {                                     \
-  nArg, (SQLITE_UTF8|SQLITE_FUNC_WINDOW|extra), 0, 0,                      \
-  name ## StepFunc, name ## ValueFunc, name ## ValueFunc,                  \
-  noopStepFunc, name ## Name, {0}                                          \
-}
-
-
-/*
-** Register those built-in window functions that are not also aggregates.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowFunctions(void){
-  static FuncDef aWindowFuncs[] = {
-    WINDOWFUNCX(row_number, 0, 0),
-    WINDOWFUNCX(dense_rank, 0, 0),
-    WINDOWFUNCX(rank, 0, 0),
-    WINDOWFUNCALL(percent_rank, 0, 0),
-    WINDOWFUNCALL(cume_dist, 0, 0),
-    WINDOWFUNCALL(ntile, 1, 0),
-    WINDOWFUNCALL(last_value, 1, 0),
-    WINDOWFUNCALL(nth_value, 2, 0),
-    WINDOWFUNCALL(first_value, 1, 0),
-    WINDOWFUNCNOOP(lead, 1, 0),
-    WINDOWFUNCNOOP(lead, 2, 0),
-    WINDOWFUNCNOOP(lead, 3, 0),
-    WINDOWFUNCNOOP(lag, 1, 0),
-    WINDOWFUNCNOOP(lag, 2, 0),
-    WINDOWFUNCNOOP(lag, 3, 0),
-  };
-  tdsqlite3InsertBuiltinFuncs(aWindowFuncs, ArraySize(aWindowFuncs));
-}
-
-static Window *windowFind(Parse *pParse, Window *pList, const char *zName){
-  Window *p;
-  for(p=pList; p; p=p->pNextWin){
-    if( tdsqlite3StrICmp(p->zName, zName)==0 ) break;
-  }
-  if( p==0 ){
-    tdsqlite3ErrorMsg(pParse, "no such window: %s", zName);
-  }
-  return p;
-}
-
-/*
-** This function is called immediately after resolving the function name
-** for a window function within a SELECT statement. Argument pList is a
-** linked list of WINDOW definitions for the current SELECT statement.
-** Argument pFunc is the function definition just resolved and pWin
-** is the Window object representing the associated OVER clause. This
-** function updates the contents of pWin as follows:
-**
-**   * If the OVER clause refered to a named window (as in "max(x) OVER win"),
-**     search list pList for a matching WINDOW definition, and update pWin
-**     accordingly. If no such WINDOW clause can be found, leave an error
-**     in pParse.
-**
-**   * If the function is a built-in window function that requires the
-**     window to be coerced (see "BUILT-IN WINDOW FUNCTIONS" at the top
-**     of this file), pWin is updated here.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowUpdate(
-  Parse *pParse, 
-  Window *pList,                  /* List of named windows for this SELECT */
-  Window *pWin,                   /* Window frame to update */
-  FuncDef *pFunc                  /* Window function definition */
-){
-  if( pWin->zName && pWin->eFrmType==0 ){
-    Window *p = windowFind(pParse, pList, pWin->zName);
-    if( p==0 ) return;
-    pWin->pPartition = tdsqlite3ExprListDup(pParse->db, p->pPartition, 0);
-    pWin->pOrderBy = tdsqlite3ExprListDup(pParse->db, p->pOrderBy, 0);
-    pWin->pStart = tdsqlite3ExprDup(pParse->db, p->pStart, 0);
-    pWin->pEnd = tdsqlite3ExprDup(pParse->db, p->pEnd, 0);
-    pWin->eStart = p->eStart;
-    pWin->eEnd = p->eEnd;
-    pWin->eFrmType = p->eFrmType;
-    pWin->eExclude = p->eExclude;
-  }else{
-    tdsqlite3WindowChain(pParse, pWin, pList);
-  }
-  if( (pWin->eFrmType==TK_RANGE)
-   && (pWin->pStart || pWin->pEnd) 
-   && (pWin->pOrderBy==0 || pWin->pOrderBy->nExpr!=1)
-  ){
-    tdsqlite3ErrorMsg(pParse, 
-      "RANGE with offset PRECEDING/FOLLOWING requires one ORDER BY expression"
-    );
-  }else
-  if( pFunc->funcFlags & SQLITE_FUNC_WINDOW ){
-    tdsqlite3 *db = pParse->db;
-    if( pWin->pFilter ){
-      tdsqlite3ErrorMsg(pParse, 
-          "FILTER clause may only be used with aggregate window functions"
-      );
-    }else{
-      struct WindowUpdate {
-        const char *zFunc;
-        int eFrmType;
-        int eStart;
-        int eEnd;
-      } aUp[] = {
-        { row_numberName,   TK_ROWS,   TK_UNBOUNDED, TK_CURRENT }, 
-        { dense_rankName,   TK_RANGE,  TK_UNBOUNDED, TK_CURRENT }, 
-        { rankName,         TK_RANGE,  TK_UNBOUNDED, TK_CURRENT }, 
-        { percent_rankName, TK_GROUPS, TK_CURRENT,   TK_UNBOUNDED }, 
-        { cume_distName,    TK_GROUPS, TK_FOLLOWING, TK_UNBOUNDED }, 
-        { ntileName,        TK_ROWS,   TK_CURRENT,   TK_UNBOUNDED }, 
-        { leadName,         TK_ROWS,   TK_UNBOUNDED, TK_UNBOUNDED }, 
-        { lagName,          TK_ROWS,   TK_UNBOUNDED, TK_CURRENT }, 
-      };
-      int i;
-      for(i=0; i<ArraySize(aUp); i++){
-        if( pFunc->zName==aUp[i].zFunc ){
-          tdsqlite3ExprDelete(db, pWin->pStart);
-          tdsqlite3ExprDelete(db, pWin->pEnd);
-          pWin->pEnd = pWin->pStart = 0;
-          pWin->eFrmType = aUp[i].eFrmType;
-          pWin->eStart = aUp[i].eStart;
-          pWin->eEnd = aUp[i].eEnd;
-          pWin->eExclude = 0;
-          if( pWin->eStart==TK_FOLLOWING ){
-            pWin->pStart = tdsqlite3Expr(db, TK_INTEGER, "1");
-          }
-          break;
-        }
-      }
-    }
-  }
-  pWin->pFunc = pFunc;
-}
-
-/*
-** Context object passed through tdsqlite3WalkExprList() to
-** selectWindowRewriteExprCb() by selectWindowRewriteEList().
-*/
-typedef struct WindowRewrite WindowRewrite;
-struct WindowRewrite {
-  Window *pWin;
-  SrcList *pSrc;
-  ExprList *pSub;
-  Table *pTab;
-  Select *pSubSelect;             /* Current sub-select, if any */
-};
-
-/*
-** Callback function used by selectWindowRewriteEList(). If necessary,
-** this function appends to the output expression-list and updates 
-** expression (*ppExpr) in place.
-*/
-static int selectWindowRewriteExprCb(Walker *pWalker, Expr *pExpr){
-  struct WindowRewrite *p = pWalker->u.pRewrite;
-  Parse *pParse = pWalker->pParse;
-  assert( p!=0 );
-  assert( p->pWin!=0 );
-
-  /* If this function is being called from within a scalar sub-select
-  ** that used by the SELECT statement being processed, only process
-  ** TK_COLUMN expressions that refer to it (the outer SELECT). Do
-  ** not process aggregates or window functions at all, as they belong
-  ** to the scalar sub-select.  */
-  if( p->pSubSelect ){
-    if( pExpr->op!=TK_COLUMN ){
-      return WRC_Continue;
-    }else{
-      int nSrc = p->pSrc->nSrc;
-      int i;
-      for(i=0; i<nSrc; i++){
-        if( pExpr->iTable==p->pSrc->a[i].iCursor ) break;
-      }
-      if( i==nSrc ) return WRC_Continue;
-    }
-  }
-
-  switch( pExpr->op ){
-
-    case TK_FUNCTION:
-      if( !ExprHasProperty(pExpr, EP_WinFunc) ){
-        break;
-      }else{
-        Window *pWin;
-        for(pWin=p->pWin; pWin; pWin=pWin->pNextWin){
-          if( pExpr->y.pWin==pWin ){
-            assert( pWin->pOwner==pExpr );
-            return WRC_Prune;
-          }
-        }
-      }
-      /* Fall through.  */
-
-    case TK_AGG_FUNCTION:
-    case TK_COLUMN: {
-      int iCol = -1;
-      if( p->pSub ){
-        int i;
-        for(i=0; i<p->pSub->nExpr; i++){
-          if( 0==tdsqlite3ExprCompare(0, p->pSub->a[i].pExpr, pExpr, -1) ){
-            iCol = i;
-            break;
-          }
-        }
-      }
-      if( iCol<0 ){
-        Expr *pDup = tdsqlite3ExprDup(pParse->db, pExpr, 0);
-        if( pDup && pDup->op==TK_AGG_FUNCTION ) pDup->op = TK_FUNCTION;
-        p->pSub = tdsqlite3ExprListAppend(pParse, p->pSub, pDup);
-      }
-      if( p->pSub ){
-        assert( ExprHasProperty(pExpr, EP_Static)==0 );
-        ExprSetProperty(pExpr, EP_Static);
-        tdsqlite3ExprDelete(pParse->db, pExpr);
-        ExprClearProperty(pExpr, EP_Static);
-        memset(pExpr, 0, sizeof(Expr));
-
-        pExpr->op = TK_COLUMN;
-        pExpr->iColumn = (iCol<0 ? p->pSub->nExpr-1: iCol);
-        pExpr->iTable = p->pWin->iEphCsr;
-        pExpr->y.pTab = p->pTab;
-      }
-      if( pParse->db->mallocFailed ) return WRC_Abort;
-      break;
-    }
-
-    default: /* no-op */
-      break;
-  }
-
-  return WRC_Continue;
-}
-static int selectWindowRewriteSelectCb(Walker *pWalker, Select *pSelect){
-  struct WindowRewrite *p = pWalker->u.pRewrite;
-  Select *pSave = p->pSubSelect;
-  if( pSave==pSelect ){
-    return WRC_Continue;
-  }else{
-    p->pSubSelect = pSelect;
-    tdsqlite3WalkSelect(pWalker, pSelect);
-    p->pSubSelect = pSave;
-  }
-  return WRC_Prune;
-}
-
-
-/*
-** Iterate through each expression in expression-list pEList. For each:
-**
-**   * TK_COLUMN,
-**   * aggregate function, or
-**   * window function with a Window object that is not a member of the 
-**     Window list passed as the second argument (pWin).
-**
-** Append the node to output expression-list (*ppSub). And replace it
-** with a TK_COLUMN that reads the (N-1)th element of table 
-** pWin->iEphCsr, where N is the number of elements in (*ppSub) after
-** appending the new one.
-*/
-static void selectWindowRewriteEList(
-  Parse *pParse, 
-  Window *pWin,
-  SrcList *pSrc,
-  ExprList *pEList,               /* Rewrite expressions in this list */
-  Table *pTab,
-  ExprList **ppSub                /* IN/OUT: Sub-select expression-list */
-){
-  Walker sWalker;
-  WindowRewrite sRewrite;
-
-  assert( pWin!=0 );
-  memset(&sWalker, 0, sizeof(Walker));
-  memset(&sRewrite, 0, sizeof(WindowRewrite));
-
-  sRewrite.pSub = *ppSub;
-  sRewrite.pWin = pWin;
-  sRewrite.pSrc = pSrc;
-  sRewrite.pTab = pTab;
-
-  sWalker.pParse = pParse;
-  sWalker.xExprCallback = selectWindowRewriteExprCb;
-  sWalker.xSelectCallback = selectWindowRewriteSelectCb;
-  sWalker.u.pRewrite = &sRewrite;
-
-  (void)tdsqlite3WalkExprList(&sWalker, pEList);
-
-  *ppSub = sRewrite.pSub;
-}
-
-/*
-** Append a copy of each expression in expression-list pAppend to
-** expression list pList. Return a pointer to the result list.
-*/
-static ExprList *exprListAppendList(
-  Parse *pParse,          /* Parsing context */
-  ExprList *pList,        /* List to which to append. Might be NULL */
-  ExprList *pAppend,      /* List of values to append. Might be NULL */
-  int bIntToNull
-){
-  if( pAppend ){
-    int i;
-    int nInit = pList ? pList->nExpr : 0;
-    for(i=0; i<pAppend->nExpr; i++){
-      int iDummy;
-      Expr *pDup = tdsqlite3ExprDup(pParse->db, pAppend->a[i].pExpr, 0);
-      assert( pDup==0 || !ExprHasProperty(pDup, EP_MemToken) );
-      if( bIntToNull && pDup && tdsqlite3ExprIsInteger(pDup, &iDummy) ){
-        pDup->op = TK_NULL;
-        pDup->flags &= ~(EP_IntValue|EP_IsTrue|EP_IsFalse);
-        pDup->u.zToken = 0;
-      }
-      pList = tdsqlite3ExprListAppend(pParse, pList, pDup);
-      if( pList ) pList->a[nInit+i].sortFlags = pAppend->a[i].sortFlags;
-    }
-  }
-  return pList;
-}
-
-/*
-** If the SELECT statement passed as the second argument does not invoke
-** any SQL window functions, this function is a no-op. Otherwise, it 
-** rewrites the SELECT statement so that window function xStep functions
-** are invoked in the correct order as described under "SELECT REWRITING"
-** at the top of this file.
-*/
-SQLITE_PRIVATE int tdsqlite3WindowRewrite(Parse *pParse, Select *p){
-  int rc = SQLITE_OK;
-  if( p->pWin && p->pPrior==0 && (p->selFlags & SF_WinRewrite)==0 ){
-    Vdbe *v = tdsqlite3GetVdbe(pParse);
-    tdsqlite3 *db = pParse->db;
-    Select *pSub = 0;             /* The subquery */
-    SrcList *pSrc = p->pSrc;
-    Expr *pWhere = p->pWhere;
-    ExprList *pGroupBy = p->pGroupBy;
-    Expr *pHaving = p->pHaving;
-    ExprList *pSort = 0;
-
-    ExprList *pSublist = 0;       /* Expression list for sub-query */
-    Window *pMWin = p->pWin;      /* Master window object */
-    Window *pWin;                 /* Window object iterator */
-    Table *pTab;
-
-    pTab = tdsqlite3DbMallocZero(db, sizeof(Table));
-    if( pTab==0 ){
-      return tdsqlite3ErrorToParser(db, SQLITE_NOMEM);
-    }
-
-    p->pSrc = 0;
-    p->pWhere = 0;
-    p->pGroupBy = 0;
-    p->pHaving = 0;
-    p->selFlags &= ~SF_Aggregate;
-    p->selFlags |= SF_WinRewrite;
-
-    /* Create the ORDER BY clause for the sub-select. This is the concatenation
-    ** of the window PARTITION and ORDER BY clauses. Then, if this makes it
-    ** redundant, remove the ORDER BY from the parent SELECT.  */
-    pSort = exprListAppendList(pParse, 0, pMWin->pPartition, 1);
-    pSort = exprListAppendList(pParse, pSort, pMWin->pOrderBy, 1);
-    if( pSort && p->pOrderBy && p->pOrderBy->nExpr<=pSort->nExpr ){
-      int nSave = pSort->nExpr;
-      pSort->nExpr = p->pOrderBy->nExpr;
-      if( tdsqlite3ExprListCompare(pSort, p->pOrderBy, -1)==0 ){
-        tdsqlite3ExprListDelete(db, p->pOrderBy);
-        p->pOrderBy = 0;
-      }
-      pSort->nExpr = nSave;
-    }
-
-    /* Assign a cursor number for the ephemeral table used to buffer rows.
-    ** The OpenEphemeral instruction is coded later, after it is known how
-    ** many columns the table will have.  */
-    pMWin->iEphCsr = pParse->nTab++;
-    pParse->nTab += 3;
-
-    selectWindowRewriteEList(pParse, pMWin, pSrc, p->pEList, pTab, &pSublist);
-    selectWindowRewriteEList(pParse, pMWin, pSrc, p->pOrderBy, pTab, &pSublist);
-    pMWin->nBufferCol = (pSublist ? pSublist->nExpr : 0);
-
-    /* Append the PARTITION BY and ORDER BY expressions to the to the 
-    ** sub-select expression list. They are required to figure out where 
-    ** boundaries for partitions and sets of peer rows lie.  */
-    pSublist = exprListAppendList(pParse, pSublist, pMWin->pPartition, 0);
-    pSublist = exprListAppendList(pParse, pSublist, pMWin->pOrderBy, 0);
-
-    /* Append the arguments passed to each window function to the
-    ** sub-select expression list. Also allocate two registers for each
-    ** window function - one for the accumulator, another for interim
-    ** results.  */
-    for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
-      ExprList *pArgs = pWin->pOwner->x.pList;
-      if( pWin->pFunc->funcFlags & SQLITE_FUNC_SUBTYPE ){
-        selectWindowRewriteEList(pParse, pMWin, pSrc, pArgs, pTab, &pSublist);
-        pWin->iArgCol = (pSublist ? pSublist->nExpr : 0);
-        pWin->bExprArgs = 1;
-      }else{
-        pWin->iArgCol = (pSublist ? pSublist->nExpr : 0);
-        pSublist = exprListAppendList(pParse, pSublist, pArgs, 0);
-      }
-      if( pWin->pFilter ){
-        Expr *pFilter = tdsqlite3ExprDup(db, pWin->pFilter, 0);
-        pSublist = tdsqlite3ExprListAppend(pParse, pSublist, pFilter);
-      }
-      pWin->regAccum = ++pParse->nMem;
-      pWin->regResult = ++pParse->nMem;
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum);
-    }
-
-    /* If there is no ORDER BY or PARTITION BY clause, and the window
-    ** function accepts zero arguments, and there are no other columns
-    ** selected (e.g. "SELECT row_number() OVER () FROM t1"), it is possible
-    ** that pSublist is still NULL here. Add a constant expression here to 
-    ** keep everything legal in this case. 
-    */
-    if( pSublist==0 ){
-      pSublist = tdsqlite3ExprListAppend(pParse, 0, 
-        tdsqlite3Expr(db, TK_INTEGER, "0")
-      );
-    }
-
-    pSub = tdsqlite3SelectNew(
-        pParse, pSublist, pSrc, pWhere, pGroupBy, pHaving, pSort, 0, 0
-    );
-    p->pSrc = tdsqlite3SrcListAppend(pParse, 0, 0, 0);
-    if( p->pSrc ){
-      Table *pTab2;
-      p->pSrc->a[0].pSelect = pSub;
-      tdsqlite3SrcListAssignCursors(pParse, p->pSrc);
-      pSub->selFlags |= SF_Expanded;
-      pTab2 = tdsqlite3ResultSetOfSelect(pParse, pSub, SQLITE_AFF_NONE);
-      if( pTab2==0 ){
-        /* Might actually be some other kind of error, but in that case
-        ** pParse->nErr will be set, so if SQLITE_NOMEM is set, we will get
-        ** the correct error message regardless. */
-        rc = SQLITE_NOMEM;
-      }else{
-        memcpy(pTab, pTab2, sizeof(Table));
-        pTab->tabFlags |= TF_Ephemeral;
-        p->pSrc->a[0].pTab = pTab;
-        pTab = pTab2;
-      }
-    }else{
-      tdsqlite3SelectDelete(db, pSub);
-    }
-    if( db->mallocFailed ) rc = SQLITE_NOMEM;
-    tdsqlite3DbFree(db, pTab);
-  }
-
-  if( rc ){
-    if( pParse->nErr==0 ){
-      assert( pParse->db->mallocFailed );
-      tdsqlite3ErrorToParser(pParse->db, SQLITE_NOMEM);
-    }
-    tdsqlite3SelectReset(pParse, p);
-  }
-  return rc;
-}
-
-/*
-** Unlink the Window object from the Select to which it is attached,
-** if it is attached.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowUnlinkFromSelect(Window *p){
-  if( p->ppThis ){
-    *p->ppThis = p->pNextWin;
-    if( p->pNextWin ) p->pNextWin->ppThis = p->ppThis;
-    p->ppThis = 0;
-  }
-}
-
-/*
-** Free the Window object passed as the second argument.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowDelete(tdsqlite3 *db, Window *p){
-  if( p ){
-    tdsqlite3WindowUnlinkFromSelect(p);
-    tdsqlite3ExprDelete(db, p->pFilter);
-    tdsqlite3ExprListDelete(db, p->pPartition);
-    tdsqlite3ExprListDelete(db, p->pOrderBy);
-    tdsqlite3ExprDelete(db, p->pEnd);
-    tdsqlite3ExprDelete(db, p->pStart);
-    tdsqlite3DbFree(db, p->zName);
-    tdsqlite3DbFree(db, p->zBase);
-    tdsqlite3DbFree(db, p);
-  }
-}
-
-/*
-** Free the linked list of Window objects starting at the second argument.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowListDelete(tdsqlite3 *db, Window *p){
-  while( p ){
-    Window *pNext = p->pNextWin;
-    tdsqlite3WindowDelete(db, p);
-    p = pNext;
-  }
-}
-
-/*
-** The argument expression is an PRECEDING or FOLLOWING offset.  The
-** value should be a non-negative integer.  If the value is not a
-** constant, change it to NULL.  The fact that it is then a non-negative
-** integer will be caught later.  But it is important not to leave
-** variable values in the expression tree.
-*/
-static Expr *tdsqlite3WindowOffsetExpr(Parse *pParse, Expr *pExpr){
-  if( 0==tdsqlite3ExprIsConstant(pExpr) ){
-    if( IN_RENAME_OBJECT ) tdsqlite3RenameExprUnmap(pParse, pExpr);
-    tdsqlite3ExprDelete(pParse->db, pExpr);
-    pExpr = tdsqlite3ExprAlloc(pParse->db, TK_NULL, 0, 0);
-  }
-  return pExpr;
-}
-
-/*
-** Allocate and return a new Window object describing a Window Definition.
-*/
-SQLITE_PRIVATE Window *tdsqlite3WindowAlloc(
-  Parse *pParse,    /* Parsing context */
-  int eType,        /* Frame type. TK_RANGE, TK_ROWS, TK_GROUPS, or 0 */
-  int eStart,       /* Start type: CURRENT, PRECEDING, FOLLOWING, UNBOUNDED */
-  Expr *pStart,     /* Start window size if TK_PRECEDING or FOLLOWING */
-  int eEnd,         /* End type: CURRENT, FOLLOWING, TK_UNBOUNDED, PRECEDING */
-  Expr *pEnd,       /* End window size if TK_FOLLOWING or PRECEDING */
-  u8 eExclude       /* EXCLUDE clause */
-){
-  Window *pWin = 0;
-  int bImplicitFrame = 0;
-
-  /* Parser assures the following: */
-  assert( eType==0 || eType==TK_RANGE || eType==TK_ROWS || eType==TK_GROUPS );
-  assert( eStart==TK_CURRENT || eStart==TK_PRECEDING
-           || eStart==TK_UNBOUNDED || eStart==TK_FOLLOWING );
-  assert( eEnd==TK_CURRENT || eEnd==TK_FOLLOWING
-           || eEnd==TK_UNBOUNDED || eEnd==TK_PRECEDING );
-  assert( (eStart==TK_PRECEDING || eStart==TK_FOLLOWING)==(pStart!=0) );
-  assert( (eEnd==TK_FOLLOWING || eEnd==TK_PRECEDING)==(pEnd!=0) );
-
-  if( eType==0 ){
-    bImplicitFrame = 1;
-    eType = TK_RANGE;
-  }
-
-  /* Additionally, the
-  ** starting boundary type may not occur earlier in the following list than
-  ** the ending boundary type:
-  **
-  **   UNBOUNDED PRECEDING
-  **   <expr> PRECEDING
-  **   CURRENT ROW
-  **   <expr> FOLLOWING
-  **   UNBOUNDED FOLLOWING
-  **
-  ** The parser ensures that "UNBOUNDED PRECEDING" cannot be used as an ending
-  ** boundary, and than "UNBOUNDED FOLLOWING" cannot be used as a starting
-  ** frame boundary.
-  */
-  if( (eStart==TK_CURRENT && eEnd==TK_PRECEDING)
-   || (eStart==TK_FOLLOWING && (eEnd==TK_PRECEDING || eEnd==TK_CURRENT))
-  ){
-    tdsqlite3ErrorMsg(pParse, "unsupported frame specification");
-    goto windowAllocErr;
-  }
-
-  pWin = (Window*)tdsqlite3DbMallocZero(pParse->db, sizeof(Window));
-  if( pWin==0 ) goto windowAllocErr;
-  pWin->eFrmType = eType;
-  pWin->eStart = eStart;
-  pWin->eEnd = eEnd;
-  if( eExclude==0 && OptimizationDisabled(pParse->db, SQLITE_WindowFunc) ){
-    eExclude = TK_NO;
-  }
-  pWin->eExclude = eExclude;
-  pWin->bImplicitFrame = bImplicitFrame;
-  pWin->pEnd = tdsqlite3WindowOffsetExpr(pParse, pEnd);
-  pWin->pStart = tdsqlite3WindowOffsetExpr(pParse, pStart);
-  return pWin;
-
-windowAllocErr:
-  tdsqlite3ExprDelete(pParse->db, pEnd);
-  tdsqlite3ExprDelete(pParse->db, pStart);
-  return 0;
-}
-
-/*
-** Attach PARTITION and ORDER BY clauses pPartition and pOrderBy to window
-** pWin. Also, if parameter pBase is not NULL, set pWin->zBase to the
-** equivalent nul-terminated string.
-*/
-SQLITE_PRIVATE Window *tdsqlite3WindowAssemble(
-  Parse *pParse, 
-  Window *pWin, 
-  ExprList *pPartition, 
-  ExprList *pOrderBy, 
-  Token *pBase
-){
-  if( pWin ){
-    pWin->pPartition = pPartition;
-    pWin->pOrderBy = pOrderBy;
-    if( pBase ){
-      pWin->zBase = tdsqlite3DbStrNDup(pParse->db, pBase->z, pBase->n);
-    }
-  }else{
-    tdsqlite3ExprListDelete(pParse->db, pPartition);
-    tdsqlite3ExprListDelete(pParse->db, pOrderBy);
-  }
-  return pWin;
-}
-
-/*
-** Window *pWin has just been created from a WINDOW clause. Tokne pBase
-** is the base window. Earlier windows from the same WINDOW clause are
-** stored in the linked list starting at pWin->pNextWin. This function
-** either updates *pWin according to the base specification, or else
-** leaves an error in pParse.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowChain(Parse *pParse, Window *pWin, Window *pList){
-  if( pWin->zBase ){
-    tdsqlite3 *db = pParse->db;
-    Window *pExist = windowFind(pParse, pList, pWin->zBase);
-    if( pExist ){
-      const char *zErr = 0;
-      /* Check for errors */
-      if( pWin->pPartition ){
-        zErr = "PARTITION clause";
-      }else if( pExist->pOrderBy && pWin->pOrderBy ){
-        zErr = "ORDER BY clause";
-      }else if( pExist->bImplicitFrame==0 ){
-        zErr = "frame specification";
-      }
-      if( zErr ){
-        tdsqlite3ErrorMsg(pParse, 
-            "cannot override %s of window: %s", zErr, pWin->zBase
-        );
-      }else{
-        pWin->pPartition = tdsqlite3ExprListDup(db, pExist->pPartition, 0);
-        if( pExist->pOrderBy ){
-          assert( pWin->pOrderBy==0 );
-          pWin->pOrderBy = tdsqlite3ExprListDup(db, pExist->pOrderBy, 0);
-        }
-        tdsqlite3DbFree(db, pWin->zBase);
-        pWin->zBase = 0;
-      }
-    }
-  }
-}
-
-/*
-** Attach window object pWin to expression p.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowAttach(Parse *pParse, Expr *p, Window *pWin){
-  if( p ){
-    assert( p->op==TK_FUNCTION );
-    assert( pWin );
-    p->y.pWin = pWin;
-    ExprSetProperty(p, EP_WinFunc);
-    pWin->pOwner = p;
-    if( (p->flags & EP_Distinct) && pWin->eFrmType!=TK_FILTER ){
-      tdsqlite3ErrorMsg(pParse,
-          "DISTINCT is not supported for window functions"
-      );
-    }
-  }else{
-    tdsqlite3WindowDelete(pParse->db, pWin);
-  }
-}
-
-/*
-** Possibly link window pWin into the list at pSel->pWin (window functions
-** to be processed as part of SELECT statement pSel). The window is linked
-** in if either (a) there are no other windows already linked to this
-** SELECT, or (b) the windows already linked use a compatible window frame.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowLink(Select *pSel, Window *pWin){
-  if( pSel!=0
-   && (0==pSel->pWin || 0==tdsqlite3WindowCompare(0, pSel->pWin, pWin, 0))
-  ){
-    pWin->pNextWin = pSel->pWin;
-    if( pSel->pWin ){
-      pSel->pWin->ppThis = &pWin->pNextWin;
-    }
-    pSel->pWin = pWin;
-    pWin->ppThis = &pSel->pWin;
-  }
-}
-
-/*
-** Return 0 if the two window objects are identical, 1 if they are
-** different, or 2 if it cannot be determined if the objects are identical
-** or not. Identical window objects can be processed in a single scan.
-*/
-SQLITE_PRIVATE int tdsqlite3WindowCompare(Parse *pParse, Window *p1, Window *p2, int bFilter){
-  int res;
-  if( NEVER(p1==0) || NEVER(p2==0) ) return 1;
-  if( p1->eFrmType!=p2->eFrmType ) return 1;
-  if( p1->eStart!=p2->eStart ) return 1;
-  if( p1->eEnd!=p2->eEnd ) return 1;
-  if( p1->eExclude!=p2->eExclude ) return 1;
-  if( tdsqlite3ExprCompare(pParse, p1->pStart, p2->pStart, -1) ) return 1;
-  if( tdsqlite3ExprCompare(pParse, p1->pEnd, p2->pEnd, -1) ) return 1;
-  if( (res = tdsqlite3ExprListCompare(p1->pPartition, p2->pPartition, -1)) ){
-    return res;
-  }
-  if( (res = tdsqlite3ExprListCompare(p1->pOrderBy, p2->pOrderBy, -1)) ){
-    return res;
-  }
-  if( bFilter ){
-    if( (res = tdsqlite3ExprCompare(pParse, p1->pFilter, p2->pFilter, -1)) ){
-      return res;
-    }
-  }
-  return 0;
-}
-
-
-/*
-** This is called by code in select.c before it calls tdsqlite3WhereBegin()
-** to begin iterating through the sub-query results. It is used to allocate
-** and initialize registers and cursors used by tdsqlite3WindowCodeStep().
-*/
-SQLITE_PRIVATE void tdsqlite3WindowCodeInit(Parse *pParse, Select *pSelect){
-  int nEphExpr = pSelect->pSrc->a[0].pSelect->pEList->nExpr;
-  Window *pMWin = pSelect->pWin;
-  Window *pWin;
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-
-  tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, pMWin->iEphCsr, nEphExpr);
-  tdsqlite3VdbeAddOp2(v, OP_OpenDup, pMWin->iEphCsr+1, pMWin->iEphCsr);
-  tdsqlite3VdbeAddOp2(v, OP_OpenDup, pMWin->iEphCsr+2, pMWin->iEphCsr);
-  tdsqlite3VdbeAddOp2(v, OP_OpenDup, pMWin->iEphCsr+3, pMWin->iEphCsr);
-
-  /* Allocate registers to use for PARTITION BY values, if any. Initialize
-  ** said registers to NULL.  */
-  if( pMWin->pPartition ){
-    int nExpr = pMWin->pPartition->nExpr;
-    pMWin->regPart = pParse->nMem+1;
-    pParse->nMem += nExpr;
-    tdsqlite3VdbeAddOp3(v, OP_Null, 0, pMWin->regPart, pMWin->regPart+nExpr-1);
-  }
-
-  pMWin->regOne = ++pParse->nMem;
-  tdsqlite3VdbeAddOp2(v, OP_Integer, 1, pMWin->regOne);
-
-  if( pMWin->eExclude ){
-    pMWin->regStartRowid = ++pParse->nMem;
-    pMWin->regEndRowid = ++pParse->nMem;
-    pMWin->csrApp = pParse->nTab++;
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 1, pMWin->regStartRowid);
-    tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pMWin->regEndRowid);
-    tdsqlite3VdbeAddOp2(v, OP_OpenDup, pMWin->csrApp, pMWin->iEphCsr);
-    return;
-  }
-
-  for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
-    FuncDef *p = pWin->pFunc;
-    if( (p->funcFlags & SQLITE_FUNC_MINMAX) && pWin->eStart!=TK_UNBOUNDED ){
-      /* The inline versions of min() and max() require a single ephemeral
-      ** table and 3 registers. The registers are used as follows:
-      **
-      **   regApp+0: slot to copy min()/max() argument to for MakeRecord
-      **   regApp+1: integer value used to ensure keys are unique
-      **   regApp+2: output of MakeRecord
-      */
-      ExprList *pList = pWin->pOwner->x.pList;
-      KeyInfo *pKeyInfo = tdsqlite3KeyInfoFromExprList(pParse, pList, 0, 0);
-      pWin->csrApp = pParse->nTab++;
-      pWin->regApp = pParse->nMem+1;
-      pParse->nMem += 3;
-      if( pKeyInfo && pWin->pFunc->zName[1]=='i' ){
-        assert( pKeyInfo->aSortFlags[0]==0 );
-        pKeyInfo->aSortFlags[0] = KEYINFO_ORDER_DESC;
-      }
-      tdsqlite3VdbeAddOp2(v, OP_OpenEphemeral, pWin->csrApp, 2);
-      tdsqlite3VdbeAppendP4(v, pKeyInfo, P4_KEYINFO);
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp+1);
-    }
-    else if( p->zName==nth_valueName || p->zName==first_valueName ){
-      /* Allocate two registers at pWin->regApp. These will be used to
-      ** store the start and end index of the current frame.  */
-      pWin->regApp = pParse->nMem+1;
-      pWin->csrApp = pParse->nTab++;
-      pParse->nMem += 2;
-      tdsqlite3VdbeAddOp2(v, OP_OpenDup, pWin->csrApp, pMWin->iEphCsr);
-    }
-    else if( p->zName==leadName || p->zName==lagName ){
-      pWin->csrApp = pParse->nTab++;
-      tdsqlite3VdbeAddOp2(v, OP_OpenDup, pWin->csrApp, pMWin->iEphCsr);
-    }
-  }
-}
-
-#define WINDOW_STARTING_INT  0
-#define WINDOW_ENDING_INT    1
-#define WINDOW_NTH_VALUE_INT 2
-#define WINDOW_STARTING_NUM  3
-#define WINDOW_ENDING_NUM    4
-
-/*
-** A "PRECEDING <expr>" (eCond==0) or "FOLLOWING <expr>" (eCond==1) or the
-** value of the second argument to nth_value() (eCond==2) has just been
-** evaluated and the result left in register reg. This function generates VM
-** code to check that the value is a non-negative integer and throws an
-** exception if it is not.
-*/
-static void windowCheckValue(Parse *pParse, int reg, int eCond){
-  static const char *azErr[] = {
-    "frame starting offset must be a non-negative integer",
-    "frame ending offset must be a non-negative integer",
-    "second argument to nth_value must be a positive integer",
-    "frame starting offset must be a non-negative number",
-    "frame ending offset must be a non-negative number",
-  };
-  static int aOp[] = { OP_Ge, OP_Ge, OP_Gt, OP_Ge, OP_Ge };
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  int regZero = tdsqlite3GetTempReg(pParse);
-  assert( eCond>=0 && eCond<ArraySize(azErr) );
-  tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regZero);
-  if( eCond>=WINDOW_STARTING_NUM ){
-    int regString = tdsqlite3GetTempReg(pParse);
-    tdsqlite3VdbeAddOp4(v, OP_String8, 0, regString, 0, "", P4_STATIC);
-    tdsqlite3VdbeAddOp3(v, OP_Ge, regString, tdsqlite3VdbeCurrentAddr(v)+2, reg);
-    tdsqlite3VdbeChangeP5(v, SQLITE_AFF_NUMERIC|SQLITE_JUMPIFNULL);
-    VdbeCoverage(v);
-    assert( eCond==3 || eCond==4 );
-    VdbeCoverageIf(v, eCond==3);
-    VdbeCoverageIf(v, eCond==4);
-  }else{
-    tdsqlite3VdbeAddOp2(v, OP_MustBeInt, reg, tdsqlite3VdbeCurrentAddr(v)+2);
-    VdbeCoverage(v);
-    assert( eCond==0 || eCond==1 || eCond==2 );
-    VdbeCoverageIf(v, eCond==0);
-    VdbeCoverageIf(v, eCond==1);
-    VdbeCoverageIf(v, eCond==2);
-  }
-  tdsqlite3VdbeAddOp3(v, aOp[eCond], regZero, tdsqlite3VdbeCurrentAddr(v)+2, reg);
-  VdbeCoverageNeverNullIf(v, eCond==0); /* NULL case captured by */
-  VdbeCoverageNeverNullIf(v, eCond==1); /*   the OP_MustBeInt */
-  VdbeCoverageNeverNullIf(v, eCond==2);
-  VdbeCoverageNeverNullIf(v, eCond==3); /* NULL case caught by */
-  VdbeCoverageNeverNullIf(v, eCond==4); /*   the OP_Ge */
-  tdsqlite3MayAbort(pParse);
-  tdsqlite3VdbeAddOp2(v, OP_Halt, SQLITE_ERROR, OE_Abort);
-  tdsqlite3VdbeAppendP4(v, (void*)azErr[eCond], P4_STATIC);
-  tdsqlite3ReleaseTempReg(pParse, regZero);
-}
-
-/*
-** Return the number of arguments passed to the window-function associated
-** with the object passed as the only argument to this function.
-*/
-static int windowArgCount(Window *pWin){
-  ExprList *pList = pWin->pOwner->x.pList;
-  return (pList ? pList->nExpr : 0);
-}
-
-typedef struct WindowCodeArg WindowCodeArg;
-typedef struct WindowCsrAndReg WindowCsrAndReg;
-
-/*
-** See comments above struct WindowCodeArg.
-*/
-struct WindowCsrAndReg {
-  int csr;                        /* Cursor number */
-  int reg;                        /* First in array of peer values */
-};
-
-/*
-** A single instance of this structure is allocated on the stack by 
-** tdsqlite3WindowCodeStep() and a pointer to it passed to the various helper
-** routines. This is to reduce the number of arguments required by each
-** helper function.
-**
-** regArg:
-**   Each window function requires an accumulator register (just as an
-**   ordinary aggregate function does). This variable is set to the first
-**   in an array of accumulator registers - one for each window function
-**   in the WindowCodeArg.pMWin list.
-**
-** eDelete:
-**   The window functions implementation sometimes caches the input rows
-**   that it processes in a temporary table. If it is not zero, this
-**   variable indicates when rows may be removed from the temp table (in
-**   order to reduce memory requirements - it would always be safe just
-**   to leave them there). Possible values for eDelete are:
-**
-**      WINDOW_RETURN_ROW:
-**        An input row can be discarded after it is returned to the caller.
-**
-**      WINDOW_AGGINVERSE:
-**        An input row can be discarded after the window functions xInverse()
-**        callbacks have been invoked in it.
-**
-**      WINDOW_AGGSTEP:
-**        An input row can be discarded after the window functions xStep()
-**        callbacks have been invoked in it.
-**
-** start,current,end
-**   Consider a window-frame similar to the following:
-**
-**     (ORDER BY a, b GROUPS BETWEEN 2 PRECEDING AND 2 FOLLOWING)
-**
-**   The windows functions implmentation caches the input rows in a temp
-**   table, sorted by "a, b" (it actually populates the cache lazily, and
-**   aggressively removes rows once they are no longer required, but that's
-**   a mere detail). It keeps three cursors open on the temp table. One
-**   (current) that points to the next row to return to the query engine
-**   once its window function values have been calculated. Another (end)
-**   points to the next row to call the xStep() method of each window function
-**   on (so that it is 2 groups ahead of current). And a third (start) that
-**   points to the next row to call the xInverse() method of each window
-**   function on.
-**
-**   Each cursor (start, current and end) consists of a VDBE cursor
-**   (WindowCsrAndReg.csr) and an array of registers (starting at
-**   WindowCodeArg.reg) that always contains a copy of the peer values 
-**   read from the corresponding cursor.
-**
-**   Depending on the window-frame in question, all three cursors may not
-**   be required. In this case both WindowCodeArg.csr and reg are set to
-**   0.
-*/
-struct WindowCodeArg {
-  Parse *pParse;             /* Parse context */
-  Window *pMWin;             /* First in list of functions being processed */
-  Vdbe *pVdbe;               /* VDBE object */
-  int addrGosub;             /* OP_Gosub to this address to return one row */
-  int regGosub;              /* Register used with OP_Gosub(addrGosub) */
-  int regArg;                /* First in array of accumulator registers */
-  int eDelete;               /* See above */
-
-  WindowCsrAndReg start;
-  WindowCsrAndReg current;
-  WindowCsrAndReg end;
-};
-
-/*
-** Generate VM code to read the window frames peer values from cursor csr into
-** an array of registers starting at reg.
-*/
-static void windowReadPeerValues(
-  WindowCodeArg *p,
-  int csr,
-  int reg
-){
-  Window *pMWin = p->pMWin;
-  ExprList *pOrderBy = pMWin->pOrderBy;
-  if( pOrderBy ){
-    Vdbe *v = tdsqlite3GetVdbe(p->pParse);
-    ExprList *pPart = pMWin->pPartition;
-    int iColOff = pMWin->nBufferCol + (pPart ? pPart->nExpr : 0);
-    int i;
-    for(i=0; i<pOrderBy->nExpr; i++){
-      tdsqlite3VdbeAddOp3(v, OP_Column, csr, iColOff+i, reg+i);
-    }
-  }
-}
-
-/*
-** Generate VM code to invoke either xStep() (if bInverse is 0) or 
-** xInverse (if bInverse is non-zero) for each window function in the 
-** linked list starting at pMWin. Or, for built-in window functions
-** that do not use the standard function API, generate the required
-** inline VM code.
-**
-** If argument csr is greater than or equal to 0, then argument reg is
-** the first register in an array of registers guaranteed to be large
-** enough to hold the array of arguments for each function. In this case
-** the arguments are extracted from the current row of csr into the
-** array of registers before invoking OP_AggStep or OP_AggInverse
-**
-** Or, if csr is less than zero, then the array of registers at reg is
-** already populated with all columns from the current row of the sub-query.
-**
-** If argument regPartSize is non-zero, then it is a register containing the
-** number of rows in the current partition.
-*/
-static void windowAggStep(
-  WindowCodeArg *p,
-  Window *pMWin,                  /* Linked list of window functions */
-  int csr,                        /* Read arguments from this cursor */
-  int bInverse,                   /* True to invoke xInverse instead of xStep */
-  int reg                         /* Array of registers */
-){
-  Parse *pParse = p->pParse;
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  Window *pWin;
-  for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
-    FuncDef *pFunc = pWin->pFunc;
-    int regArg;
-    int nArg = pWin->bExprArgs ? 0 : windowArgCount(pWin);
-    int i;
-
-    assert( bInverse==0 || pWin->eStart!=TK_UNBOUNDED );
-
-    /* All OVER clauses in the same window function aggregate step must
-    ** be the same. */
-    assert( pWin==pMWin || tdsqlite3WindowCompare(pParse,pWin,pMWin,0)!=1 );
-
-    for(i=0; i<nArg; i++){
-      if( i!=1 || pFunc->zName!=nth_valueName ){
-        tdsqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol+i, reg+i);
-      }else{
-        tdsqlite3VdbeAddOp3(v, OP_Column, pMWin->iEphCsr, pWin->iArgCol+i, reg+i);
-      }
-    }
-    regArg = reg;
-
-    if( pMWin->regStartRowid==0
-     && (pFunc->funcFlags & SQLITE_FUNC_MINMAX) 
-     && (pWin->eStart!=TK_UNBOUNDED)
-    ){
-      int addrIsNull = tdsqlite3VdbeAddOp1(v, OP_IsNull, regArg);
-      VdbeCoverage(v);
-      if( bInverse==0 ){
-        tdsqlite3VdbeAddOp2(v, OP_AddImm, pWin->regApp+1, 1);
-        tdsqlite3VdbeAddOp2(v, OP_SCopy, regArg, pWin->regApp);
-        tdsqlite3VdbeAddOp3(v, OP_MakeRecord, pWin->regApp, 2, pWin->regApp+2);
-        tdsqlite3VdbeAddOp2(v, OP_IdxInsert, pWin->csrApp, pWin->regApp+2);
-      }else{
-        tdsqlite3VdbeAddOp4Int(v, OP_SeekGE, pWin->csrApp, 0, regArg, 1);
-        VdbeCoverageNeverTaken(v);
-        tdsqlite3VdbeAddOp1(v, OP_Delete, pWin->csrApp);
-        tdsqlite3VdbeJumpHere(v, tdsqlite3VdbeCurrentAddr(v)-2);
-      }
-      tdsqlite3VdbeJumpHere(v, addrIsNull);
-    }else if( pWin->regApp ){
-      assert( pFunc->zName==nth_valueName
-           || pFunc->zName==first_valueName
-      );
-      assert( bInverse==0 || bInverse==1 );
-      tdsqlite3VdbeAddOp2(v, OP_AddImm, pWin->regApp+1-bInverse, 1);
-    }else if( pFunc->xSFunc!=noopStepFunc ){
-      int addrIf = 0;
-      if( pWin->pFilter ){
-        int regTmp;
-        assert( pWin->bExprArgs || !nArg ||nArg==pWin->pOwner->x.pList->nExpr );
-        assert( pWin->bExprArgs || nArg  ||pWin->pOwner->x.pList==0 );
-        regTmp = tdsqlite3GetTempReg(pParse);
-        tdsqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol+nArg,regTmp);
-        addrIf = tdsqlite3VdbeAddOp3(v, OP_IfNot, regTmp, 0, 1);
-        VdbeCoverage(v);
-        tdsqlite3ReleaseTempReg(pParse, regTmp);
-      }
-      
-      if( pWin->bExprArgs ){
-        int iStart = tdsqlite3VdbeCurrentAddr(v);
-        VdbeOp *pOp, *pEnd;
-
-        nArg = pWin->pOwner->x.pList->nExpr;
-        regArg = tdsqlite3GetTempRange(pParse, nArg);
-        tdsqlite3ExprCodeExprList(pParse, pWin->pOwner->x.pList, regArg, 0, 0);
-
-        pEnd = tdsqlite3VdbeGetOp(v, -1);
-        for(pOp=tdsqlite3VdbeGetOp(v, iStart); pOp<=pEnd; pOp++){
-          if( pOp->opcode==OP_Column && pOp->p1==pWin->iEphCsr ){
-            pOp->p1 = csr;
-          }
-        }
-      }
-      if( pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL ){
-        CollSeq *pColl;
-        assert( nArg>0 );
-        pColl = tdsqlite3ExprNNCollSeq(pParse, pWin->pOwner->x.pList->a[0].pExpr);
-        tdsqlite3VdbeAddOp4(v, OP_CollSeq, 0,0,0, (const char*)pColl, P4_COLLSEQ);
-      }
-      tdsqlite3VdbeAddOp3(v, bInverse? OP_AggInverse : OP_AggStep, 
-                        bInverse, regArg, pWin->regAccum);
-      tdsqlite3VdbeAppendP4(v, pFunc, P4_FUNCDEF);
-      tdsqlite3VdbeChangeP5(v, (u8)nArg);
-      if( pWin->bExprArgs ){
-        tdsqlite3ReleaseTempRange(pParse, regArg, nArg);
-      }
-      if( addrIf ) tdsqlite3VdbeJumpHere(v, addrIf);
-    }
-  }
-}
-
-/*
-** Values that may be passed as the second argument to windowCodeOp().
-*/
-#define WINDOW_RETURN_ROW 1
-#define WINDOW_AGGINVERSE 2
-#define WINDOW_AGGSTEP    3
-
-/*
-** Generate VM code to invoke either xValue() (bFin==0) or xFinalize()
-** (bFin==1) for each window function in the linked list starting at
-** pMWin. Or, for built-in window-functions that do not use the standard
-** API, generate the equivalent VM code.
-*/
-static void windowAggFinal(WindowCodeArg *p, int bFin){
-  Parse *pParse = p->pParse;
-  Window *pMWin = p->pMWin;
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  Window *pWin;
-
-  for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
-    if( pMWin->regStartRowid==0
-     && (pWin->pFunc->funcFlags & SQLITE_FUNC_MINMAX) 
-     && (pWin->eStart!=TK_UNBOUNDED)
-    ){
-      tdsqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regResult);
-      tdsqlite3VdbeAddOp1(v, OP_Last, pWin->csrApp);
-      VdbeCoverage(v);
-      tdsqlite3VdbeAddOp3(v, OP_Column, pWin->csrApp, 0, pWin->regResult);
-      tdsqlite3VdbeJumpHere(v, tdsqlite3VdbeCurrentAddr(v)-2);
-    }else if( pWin->regApp ){
-      assert( pMWin->regStartRowid==0 );
-    }else{
-      int nArg = windowArgCount(pWin);
-      if( bFin ){
-        tdsqlite3VdbeAddOp2(v, OP_AggFinal, pWin->regAccum, nArg);
-        tdsqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF);
-        tdsqlite3VdbeAddOp2(v, OP_Copy, pWin->regAccum, pWin->regResult);
-        tdsqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum);
-      }else{
-        tdsqlite3VdbeAddOp3(v, OP_AggValue,pWin->regAccum,nArg,pWin->regResult);
-        tdsqlite3VdbeAppendP4(v, pWin->pFunc, P4_FUNCDEF);
-      }
-    }
-  }
-}
-
-/*
-** Generate code to calculate the current values of all window functions in the
-** p->pMWin list by doing a full scan of the current window frame. Store the
-** results in the Window.regResult registers, ready to return the upper
-** layer.
-*/
-static void windowFullScan(WindowCodeArg *p){
-  Window *pWin;
-  Parse *pParse = p->pParse;
-  Window *pMWin = p->pMWin;
-  Vdbe *v = p->pVdbe;
-
-  int regCRowid = 0;              /* Current rowid value */
-  int regCPeer = 0;               /* Current peer values */
-  int regRowid = 0;               /* AggStep rowid value */
-  int regPeer = 0;                /* AggStep peer values */
-
-  int nPeer;
-  int lblNext;
-  int lblBrk;
-  int addrNext;
-  int csr;
-
-  VdbeModuleComment((v, "windowFullScan begin"));
-
-  assert( pMWin!=0 );
-  csr = pMWin->csrApp;
-  nPeer = (pMWin->pOrderBy ? pMWin->pOrderBy->nExpr : 0);
-
-  lblNext = tdsqlite3VdbeMakeLabel(pParse);
-  lblBrk = tdsqlite3VdbeMakeLabel(pParse);
-
-  regCRowid = tdsqlite3GetTempReg(pParse);
-  regRowid = tdsqlite3GetTempReg(pParse);
-  if( nPeer ){
-    regCPeer = tdsqlite3GetTempRange(pParse, nPeer);
-    regPeer = tdsqlite3GetTempRange(pParse, nPeer);
-  }
-
-  tdsqlite3VdbeAddOp2(v, OP_Rowid, pMWin->iEphCsr, regCRowid);
-  windowReadPeerValues(p, pMWin->iEphCsr, regCPeer);
-
-  for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
-    tdsqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum);
-  }
-
-  tdsqlite3VdbeAddOp3(v, OP_SeekGE, csr, lblBrk, pMWin->regStartRowid);
-  VdbeCoverage(v);
-  addrNext = tdsqlite3VdbeCurrentAddr(v);
-  tdsqlite3VdbeAddOp2(v, OP_Rowid, csr, regRowid);
-  tdsqlite3VdbeAddOp3(v, OP_Gt, pMWin->regEndRowid, lblBrk, regRowid);
-  VdbeCoverageNeverNull(v);
-
-  if( pMWin->eExclude==TK_CURRENT ){
-    tdsqlite3VdbeAddOp3(v, OP_Eq, regCRowid, lblNext, regRowid);
-    VdbeCoverageNeverNull(v);
-  }else if( pMWin->eExclude!=TK_NO ){
-    int addr;
-    int addrEq = 0;
-    KeyInfo *pKeyInfo = 0;
-
-    if( pMWin->pOrderBy ){
-      pKeyInfo = tdsqlite3KeyInfoFromExprList(pParse, pMWin->pOrderBy, 0, 0);
-    }
-    if( pMWin->eExclude==TK_TIES ){
-      addrEq = tdsqlite3VdbeAddOp3(v, OP_Eq, regCRowid, 0, regRowid);
-      VdbeCoverageNeverNull(v);
-    }
-    if( pKeyInfo ){
-      windowReadPeerValues(p, csr, regPeer);
-      tdsqlite3VdbeAddOp3(v, OP_Compare, regPeer, regCPeer, nPeer);
-      tdsqlite3VdbeAppendP4(v, (void*)pKeyInfo, P4_KEYINFO);
-      addr = tdsqlite3VdbeCurrentAddr(v)+1;
-      tdsqlite3VdbeAddOp3(v, OP_Jump, addr, lblNext, addr);
-      VdbeCoverageEqNe(v);
-    }else{
-      tdsqlite3VdbeAddOp2(v, OP_Goto, 0, lblNext);
-    }
-    if( addrEq ) tdsqlite3VdbeJumpHere(v, addrEq);
-  }
-
-  windowAggStep(p, pMWin, csr, 0, p->regArg);
-
-  tdsqlite3VdbeResolveLabel(v, lblNext);
-  tdsqlite3VdbeAddOp2(v, OP_Next, csr, addrNext);
-  VdbeCoverage(v);
-  tdsqlite3VdbeJumpHere(v, addrNext-1);
-  tdsqlite3VdbeJumpHere(v, addrNext+1);
-  tdsqlite3ReleaseTempReg(pParse, regRowid);
-  tdsqlite3ReleaseTempReg(pParse, regCRowid);
-  if( nPeer ){
-    tdsqlite3ReleaseTempRange(pParse, regPeer, nPeer);
-    tdsqlite3ReleaseTempRange(pParse, regCPeer, nPeer);
-  }
-
-  windowAggFinal(p, 1);
-  VdbeModuleComment((v, "windowFullScan end"));
-}
-
-/*
-** Invoke the sub-routine at regGosub (generated by code in select.c) to
-** return the current row of Window.iEphCsr. If all window functions are
-** aggregate window functions that use the standard API, a single
-** OP_Gosub instruction is all that this routine generates. Extra VM code
-** for per-row processing is only generated for the following built-in window
-** functions:
-**
-**   nth_value()
-**   first_value()
-**   lag()
-**   lead()
-*/
-static void windowReturnOneRow(WindowCodeArg *p){
-  Window *pMWin = p->pMWin;
-  Vdbe *v = p->pVdbe;
-
-  if( pMWin->regStartRowid ){
-    windowFullScan(p);
-  }else{
-    Parse *pParse = p->pParse;
-    Window *pWin;
-
-    for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
-      FuncDef *pFunc = pWin->pFunc;
-      if( pFunc->zName==nth_valueName
-       || pFunc->zName==first_valueName
-      ){
-        int csr = pWin->csrApp;
-        int lbl = tdsqlite3VdbeMakeLabel(pParse);
-        int tmpReg = tdsqlite3GetTempReg(pParse);
-        tdsqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regResult);
-  
-        if( pFunc->zName==nth_valueName ){
-          tdsqlite3VdbeAddOp3(v, OP_Column,pMWin->iEphCsr,pWin->iArgCol+1,tmpReg);
-          windowCheckValue(pParse, tmpReg, 2);
-        }else{
-          tdsqlite3VdbeAddOp2(v, OP_Integer, 1, tmpReg);
-        }
-        tdsqlite3VdbeAddOp3(v, OP_Add, tmpReg, pWin->regApp, tmpReg);
-        tdsqlite3VdbeAddOp3(v, OP_Gt, pWin->regApp+1, lbl, tmpReg);
-        VdbeCoverageNeverNull(v);
-        tdsqlite3VdbeAddOp3(v, OP_SeekRowid, csr, 0, tmpReg);
-        VdbeCoverageNeverTaken(v);
-        tdsqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol, pWin->regResult);
-        tdsqlite3VdbeResolveLabel(v, lbl);
-        tdsqlite3ReleaseTempReg(pParse, tmpReg);
-      }
-      else if( pFunc->zName==leadName || pFunc->zName==lagName ){
-        int nArg = pWin->pOwner->x.pList->nExpr;
-        int csr = pWin->csrApp;
-        int lbl = tdsqlite3VdbeMakeLabel(pParse);
-        int tmpReg = tdsqlite3GetTempReg(pParse);
-        int iEph = pMWin->iEphCsr;
-  
-        if( nArg<3 ){
-          tdsqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regResult);
-        }else{
-          tdsqlite3VdbeAddOp3(v, OP_Column, iEph,pWin->iArgCol+2,pWin->regResult);
-        }
-        tdsqlite3VdbeAddOp2(v, OP_Rowid, iEph, tmpReg);
-        if( nArg<2 ){
-          int val = (pFunc->zName==leadName ? 1 : -1);
-          tdsqlite3VdbeAddOp2(v, OP_AddImm, tmpReg, val);
-        }else{
-          int op = (pFunc->zName==leadName ? OP_Add : OP_Subtract);
-          int tmpReg2 = tdsqlite3GetTempReg(pParse);
-          tdsqlite3VdbeAddOp3(v, OP_Column, iEph, pWin->iArgCol+1, tmpReg2);
-          tdsqlite3VdbeAddOp3(v, op, tmpReg2, tmpReg, tmpReg);
-          tdsqlite3ReleaseTempReg(pParse, tmpReg2);
-        }
-  
-        tdsqlite3VdbeAddOp3(v, OP_SeekRowid, csr, lbl, tmpReg);
-        VdbeCoverage(v);
-        tdsqlite3VdbeAddOp3(v, OP_Column, csr, pWin->iArgCol, pWin->regResult);
-        tdsqlite3VdbeResolveLabel(v, lbl);
-        tdsqlite3ReleaseTempReg(pParse, tmpReg);
-      }
-    }
-  }
-  tdsqlite3VdbeAddOp2(v, OP_Gosub, p->regGosub, p->addrGosub);
-}
-
-/*
-** Generate code to set the accumulator register for each window function
-** in the linked list passed as the second argument to NULL. And perform
-** any equivalent initialization required by any built-in window functions
-** in the list.
-*/
-static int windowInitAccum(Parse *pParse, Window *pMWin){
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  int regArg;
-  int nArg = 0;
-  Window *pWin;
-  for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
-    FuncDef *pFunc = pWin->pFunc;
-    tdsqlite3VdbeAddOp2(v, OP_Null, 0, pWin->regAccum);
-    nArg = MAX(nArg, windowArgCount(pWin));
-    if( pMWin->regStartRowid==0 ){
-      if( pFunc->zName==nth_valueName || pFunc->zName==first_valueName ){
-        tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp);
-        tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp+1);
-      }
-
-      if( (pFunc->funcFlags & SQLITE_FUNC_MINMAX) && pWin->csrApp ){
-        assert( pWin->eStart!=TK_UNBOUNDED );
-        tdsqlite3VdbeAddOp1(v, OP_ResetSorter, pWin->csrApp);
-        tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pWin->regApp+1);
-      }
-    }
-  }
-  regArg = pParse->nMem+1;
-  pParse->nMem += nArg;
-  return regArg;
-}
-
-/* 
-** Return true if the current frame should be cached in the ephemeral table,
-** even if there are no xInverse() calls required.
-*/
-static int windowCacheFrame(Window *pMWin){
-  Window *pWin;
-  if( pMWin->regStartRowid ) return 1;
-  for(pWin=pMWin; pWin; pWin=pWin->pNextWin){
-    FuncDef *pFunc = pWin->pFunc;
-    if( (pFunc->zName==nth_valueName)
-     || (pFunc->zName==first_valueName)
-     || (pFunc->zName==leadName)
-     || (pFunc->zName==lagName)
-    ){
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** regOld and regNew are each the first register in an array of size
-** pOrderBy->nExpr. This function generates code to compare the two
-** arrays of registers using the collation sequences and other comparison
-** parameters specified by pOrderBy. 
-**
-** If the two arrays are not equal, the contents of regNew is copied to 
-** regOld and control falls through. Otherwise, if the contents of the arrays
-** are equal, an OP_Goto is executed. The address of the OP_Goto is returned.
-*/
-static void windowIfNewPeer(
-  Parse *pParse,
-  ExprList *pOrderBy,
-  int regNew,                     /* First in array of new values */
-  int regOld,                     /* First in array of old values */
-  int addr                        /* Jump here */
-){
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  if( pOrderBy ){
-    int nVal = pOrderBy->nExpr;
-    KeyInfo *pKeyInfo = tdsqlite3KeyInfoFromExprList(pParse, pOrderBy, 0, 0);
-    tdsqlite3VdbeAddOp3(v, OP_Compare, regOld, regNew, nVal);
-    tdsqlite3VdbeAppendP4(v, (void*)pKeyInfo, P4_KEYINFO);
-    tdsqlite3VdbeAddOp3(v, OP_Jump, 
-      tdsqlite3VdbeCurrentAddr(v)+1, addr, tdsqlite3VdbeCurrentAddr(v)+1
-    );
-    VdbeCoverageEqNe(v);
-    tdsqlite3VdbeAddOp3(v, OP_Copy, regNew, regOld, nVal-1);
-  }else{
-    tdsqlite3VdbeAddOp2(v, OP_Goto, 0, addr);
-  }
-}
-
-/*
-** This function is called as part of generating VM programs for RANGE
-** offset PRECEDING/FOLLOWING frame boundaries. Assuming "ASC" order for
-** the ORDER BY term in the window, and that argument op is OP_Ge, it generates
-** code equivalent to:
-**
-**   if( csr1.peerVal + regVal >= csr2.peerVal ) goto lbl;
-**
-** The value of parameter op may also be OP_Gt or OP_Le. In these cases the
-** operator in the above pseudo-code is replaced with ">" or "<=", respectively.
-**
-** If the sort-order for the ORDER BY term in the window is DESC, then the
-** comparison is reversed. Instead of adding regVal to csr1.peerVal, it is
-** subtracted. And the comparison operator is inverted to - ">=" becomes "<=",
-** ">" becomes "<", and so on. So, with DESC sort order, if the argument op
-** is OP_Ge, the generated code is equivalent to:
-**
-**   if( csr1.peerVal - regVal <= csr2.peerVal ) goto lbl;
-**
-** A special type of arithmetic is used such that if csr1.peerVal is not
-** a numeric type (real or integer), then the result of the addition addition
-** or subtraction is a a copy of csr1.peerVal.
-*/
-static void windowCodeRangeTest(
-  WindowCodeArg *p, 
-  int op,                         /* OP_Ge, OP_Gt, or OP_Le */
-  int csr1,                       /* Cursor number for cursor 1 */
-  int regVal,                     /* Register containing non-negative number */
-  int csr2,                       /* Cursor number for cursor 2 */
-  int lbl                         /* Jump destination if condition is true */
-){
-  Parse *pParse = p->pParse;
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  ExprList *pOrderBy = p->pMWin->pOrderBy;  /* ORDER BY clause for window */
-  int reg1 = tdsqlite3GetTempReg(pParse);     /* Reg. for csr1.peerVal+regVal */
-  int reg2 = tdsqlite3GetTempReg(pParse);     /* Reg. for csr2.peerVal */
-  int regString = ++pParse->nMem;           /* Reg. for constant value '' */
-  int arith = OP_Add;                       /* OP_Add or OP_Subtract */
-  int addrGe;                               /* Jump destination */
-
-  assert( op==OP_Ge || op==OP_Gt || op==OP_Le );
-  assert( pOrderBy && pOrderBy->nExpr==1 );
-  if( pOrderBy->a[0].sortFlags & KEYINFO_ORDER_DESC ){
-    switch( op ){
-      case OP_Ge: op = OP_Le; break;
-      case OP_Gt: op = OP_Lt; break;
-      default: assert( op==OP_Le ); op = OP_Ge; break;
-    }
-    arith = OP_Subtract;
-  }
-
-  /* Read the peer-value from each cursor into a register */
-  windowReadPeerValues(p, csr1, reg1);
-  windowReadPeerValues(p, csr2, reg2);
-
-  VdbeModuleComment((v, "CodeRangeTest: if( R%d %s R%d %s R%d ) goto lbl",
-      reg1, (arith==OP_Add ? "+" : "-"), regVal,
-      ((op==OP_Ge) ? ">=" : (op==OP_Le) ? "<=" : (op==OP_Gt) ? ">" : "<"), reg2
-  ));
-
-  /* Register reg1 currently contains csr1.peerVal (the peer-value from csr1).
-  ** This block adds (or subtracts for DESC) the numeric value in regVal
-  ** from it. Or, if reg1 is not numeric (it is a NULL, a text value or a blob),
-  ** then leave reg1 as it is. In pseudo-code, this is implemented as:
-  **
-  **   if( reg1>='' ) goto addrGe;
-  **   reg1 = reg1 +/- regVal
-  **   addrGe:
-  **
-  ** Since all strings and blobs are greater-than-or-equal-to an empty string,
-  ** the add/subtract is skipped for these, as required. If reg1 is a NULL,
-  ** then the arithmetic is performed, but since adding or subtracting from
-  ** NULL is always NULL anyway, this case is handled as required too.  */
-  tdsqlite3VdbeAddOp4(v, OP_String8, 0, regString, 0, "", P4_STATIC);
-  addrGe = tdsqlite3VdbeAddOp3(v, OP_Ge, regString, 0, reg1);
-  VdbeCoverage(v);
-  tdsqlite3VdbeAddOp3(v, arith, regVal, reg1, reg1);
-  tdsqlite3VdbeJumpHere(v, addrGe);
-
-  /* If the BIGNULL flag is set for the ORDER BY, then it is required to 
-  ** consider NULL values to be larger than all other values, instead of 
-  ** the usual smaller. The VDBE opcodes OP_Ge and so on do not handle this
-  ** (and adding that capability causes a performance regression), so
-  ** instead if the BIGNULL flag is set then cases where either reg1 or
-  ** reg2 are NULL are handled separately in the following block. The code
-  ** generated is equivalent to:
-  **
-  **   if( reg1 IS NULL ){
-  **     if( op==OP_Ge ) goto lbl;
-  **     if( op==OP_Gt && reg2 IS NOT NULL ) goto lbl;
-  **     if( op==OP_Le && reg2 IS NULL ) goto lbl;
-  **   }else if( reg2 IS NULL ){
-  **     if( op==OP_Le ) goto lbl;
-  **   }
-  **
-  ** Additionally, if either reg1 or reg2 are NULL but the jump to lbl is 
-  ** not taken, control jumps over the comparison operator coded below this
-  ** block.  */
-  if( pOrderBy->a[0].sortFlags & KEYINFO_ORDER_BIGNULL ){
-    /* This block runs if reg1 contains a NULL. */
-    int addr = tdsqlite3VdbeAddOp1(v, OP_NotNull, reg1); VdbeCoverage(v);
-    switch( op ){
-      case OP_Ge: 
-        tdsqlite3VdbeAddOp2(v, OP_Goto, 0, lbl); 
-        break;
-      case OP_Gt: 
-        tdsqlite3VdbeAddOp2(v, OP_NotNull, reg2, lbl); 
-        VdbeCoverage(v); 
-        break;
-      case OP_Le: 
-        tdsqlite3VdbeAddOp2(v, OP_IsNull, reg2, lbl); 
-        VdbeCoverage(v); 
-        break;
-      default: assert( op==OP_Lt ); /* no-op */ break;
-    }
-    tdsqlite3VdbeAddOp2(v, OP_Goto, 0, tdsqlite3VdbeCurrentAddr(v)+3);
-
-    /* This block runs if reg1 is not NULL, but reg2 is. */
-    tdsqlite3VdbeJumpHere(v, addr);
-    tdsqlite3VdbeAddOp2(v, OP_IsNull, reg2, lbl); VdbeCoverage(v);
-    if( op==OP_Gt || op==OP_Ge ){
-      tdsqlite3VdbeChangeP2(v, -1, tdsqlite3VdbeCurrentAddr(v)+1);
-    }
-  }
-
-  /* Compare registers reg2 and reg1, taking the jump if required. Note that
-  ** control skips over this test if the BIGNULL flag is set and either
-  ** reg1 or reg2 contain a NULL value.  */
-  tdsqlite3VdbeAddOp3(v, op, reg2, lbl, reg1); VdbeCoverage(v);
-  tdsqlite3VdbeChangeP5(v, SQLITE_NULLEQ);
-
-  assert( op==OP_Ge || op==OP_Gt || op==OP_Lt || op==OP_Le );
-  testcase(op==OP_Ge); VdbeCoverageIf(v, op==OP_Ge);
-  testcase(op==OP_Lt); VdbeCoverageIf(v, op==OP_Lt);
-  testcase(op==OP_Le); VdbeCoverageIf(v, op==OP_Le);
-  testcase(op==OP_Gt); VdbeCoverageIf(v, op==OP_Gt);
-  tdsqlite3ReleaseTempReg(pParse, reg1);
-  tdsqlite3ReleaseTempReg(pParse, reg2);
-
-  VdbeModuleComment((v, "CodeRangeTest: end"));
-}
-
-/*
-** Helper function for tdsqlite3WindowCodeStep(). Each call to this function
-** generates VM code for a single RETURN_ROW, AGGSTEP or AGGINVERSE 
-** operation. Refer to the header comment for tdsqlite3WindowCodeStep() for
-** details.
-*/
-static int windowCodeOp(
- WindowCodeArg *p,                /* Context object */
- int op,                          /* WINDOW_RETURN_ROW, AGGSTEP or AGGINVERSE */
- int regCountdown,                /* Register for OP_IfPos countdown */
- int jumpOnEof                    /* Jump here if stepped cursor reaches EOF */
-){
-  int csr, reg;
-  Parse *pParse = p->pParse;
-  Window *pMWin = p->pMWin;
-  int ret = 0;
-  Vdbe *v = p->pVdbe;
-  int addrContinue = 0;
-  int bPeer = (pMWin->eFrmType!=TK_ROWS);
-
-  int lblDone = tdsqlite3VdbeMakeLabel(pParse);
-  int addrNextRange = 0;
-
-  /* Special case - WINDOW_AGGINVERSE is always a no-op if the frame
-  ** starts with UNBOUNDED PRECEDING. */
-  if( op==WINDOW_AGGINVERSE && pMWin->eStart==TK_UNBOUNDED ){
-    assert( regCountdown==0 && jumpOnEof==0 );
-    return 0;
-  }
-
-  if( regCountdown>0 ){
-    if( pMWin->eFrmType==TK_RANGE ){
-      addrNextRange = tdsqlite3VdbeCurrentAddr(v);
-      assert( op==WINDOW_AGGINVERSE || op==WINDOW_AGGSTEP );
-      if( op==WINDOW_AGGINVERSE ){
-        if( pMWin->eStart==TK_FOLLOWING ){
-          windowCodeRangeTest(
-              p, OP_Le, p->current.csr, regCountdown, p->start.csr, lblDone
-          );
-        }else{
-          windowCodeRangeTest(
-              p, OP_Ge, p->start.csr, regCountdown, p->current.csr, lblDone
-          );
-        }
-      }else{
-        windowCodeRangeTest(
-            p, OP_Gt, p->end.csr, regCountdown, p->current.csr, lblDone
-        );
-      }
-    }else{
-      tdsqlite3VdbeAddOp3(v, OP_IfPos, regCountdown, lblDone, 1);
-      VdbeCoverage(v);
-    }
-  }
-
-  if( op==WINDOW_RETURN_ROW && pMWin->regStartRowid==0 ){
-    windowAggFinal(p, 0);
-  }
-  addrContinue = tdsqlite3VdbeCurrentAddr(v);
-
-  /* If this is a (RANGE BETWEEN a FOLLOWING AND b FOLLOWING) or
-  ** (RANGE BETWEEN b PRECEDING AND a PRECEDING) frame, ensure the 
-  ** start cursor does not advance past the end cursor within the 
-  ** temporary table. It otherwise might, if (a>b).  */
-  if( pMWin->eStart==pMWin->eEnd && regCountdown
-   && pMWin->eFrmType==TK_RANGE && op==WINDOW_AGGINVERSE
-  ){
-    int regRowid1 = tdsqlite3GetTempReg(pParse);
-    int regRowid2 = tdsqlite3GetTempReg(pParse);
-    tdsqlite3VdbeAddOp2(v, OP_Rowid, p->start.csr, regRowid1);
-    tdsqlite3VdbeAddOp2(v, OP_Rowid, p->end.csr, regRowid2);
-    tdsqlite3VdbeAddOp3(v, OP_Ge, regRowid2, lblDone, regRowid1);
-    VdbeCoverage(v);
-    tdsqlite3ReleaseTempReg(pParse, regRowid1);
-    tdsqlite3ReleaseTempReg(pParse, regRowid2);
-    assert( pMWin->eStart==TK_PRECEDING || pMWin->eStart==TK_FOLLOWING );
-  }
-
-  switch( op ){
-    case WINDOW_RETURN_ROW:
-      csr = p->current.csr;
-      reg = p->current.reg;
-      windowReturnOneRow(p);
-      break;
-
-    case WINDOW_AGGINVERSE:
-      csr = p->start.csr;
-      reg = p->start.reg;
-      if( pMWin->regStartRowid ){
-        assert( pMWin->regEndRowid );
-        tdsqlite3VdbeAddOp2(v, OP_AddImm, pMWin->regStartRowid, 1);
-      }else{
-        windowAggStep(p, pMWin, csr, 1, p->regArg);
-      }
-      break;
-
-    default:
-      assert( op==WINDOW_AGGSTEP );
-      csr = p->end.csr;
-      reg = p->end.reg;
-      if( pMWin->regStartRowid ){
-        assert( pMWin->regEndRowid );
-        tdsqlite3VdbeAddOp2(v, OP_AddImm, pMWin->regEndRowid, 1);
-      }else{
-        windowAggStep(p, pMWin, csr, 0, p->regArg);
-      }
-      break;
-  }
-
-  if( op==p->eDelete ){
-    tdsqlite3VdbeAddOp1(v, OP_Delete, csr);
-    tdsqlite3VdbeChangeP5(v, OPFLAG_SAVEPOSITION);
-  }
-
-  if( jumpOnEof ){
-    tdsqlite3VdbeAddOp2(v, OP_Next, csr, tdsqlite3VdbeCurrentAddr(v)+2);
-    VdbeCoverage(v);
-    ret = tdsqlite3VdbeAddOp0(v, OP_Goto);
-  }else{
-    tdsqlite3VdbeAddOp2(v, OP_Next, csr, tdsqlite3VdbeCurrentAddr(v)+1+bPeer);
-    VdbeCoverage(v);
-    if( bPeer ){
-      tdsqlite3VdbeAddOp2(v, OP_Goto, 0, lblDone);
-    }
-  }
-
-  if( bPeer ){
-    int nReg = (pMWin->pOrderBy ? pMWin->pOrderBy->nExpr : 0);
-    int regTmp = (nReg ? tdsqlite3GetTempRange(pParse, nReg) : 0);
-    windowReadPeerValues(p, csr, regTmp);
-    windowIfNewPeer(pParse, pMWin->pOrderBy, regTmp, reg, addrContinue);
-    tdsqlite3ReleaseTempRange(pParse, regTmp, nReg);
-  }
-
-  if( addrNextRange ){
-    tdsqlite3VdbeAddOp2(v, OP_Goto, 0, addrNextRange);
-  }
-  tdsqlite3VdbeResolveLabel(v, lblDone);
-  return ret;
-}
-
-
-/*
-** Allocate and return a duplicate of the Window object indicated by the
-** third argument. Set the Window.pOwner field of the new object to
-** pOwner.
-*/
-SQLITE_PRIVATE Window *tdsqlite3WindowDup(tdsqlite3 *db, Expr *pOwner, Window *p){
-  Window *pNew = 0;
-  if( ALWAYS(p) ){
-    pNew = tdsqlite3DbMallocZero(db, sizeof(Window));
-    if( pNew ){
-      pNew->zName = tdsqlite3DbStrDup(db, p->zName);
-      pNew->zBase = tdsqlite3DbStrDup(db, p->zBase);
-      pNew->pFilter = tdsqlite3ExprDup(db, p->pFilter, 0);
-      pNew->pFunc = p->pFunc;
-      pNew->pPartition = tdsqlite3ExprListDup(db, p->pPartition, 0);
-      pNew->pOrderBy = tdsqlite3ExprListDup(db, p->pOrderBy, 0);
-      pNew->eFrmType = p->eFrmType;
-      pNew->eEnd = p->eEnd;
-      pNew->eStart = p->eStart;
-      pNew->eExclude = p->eExclude;
-      pNew->regResult = p->regResult;
-      pNew->pStart = tdsqlite3ExprDup(db, p->pStart, 0);
-      pNew->pEnd = tdsqlite3ExprDup(db, p->pEnd, 0);
-      pNew->pOwner = pOwner;
-      pNew->bImplicitFrame = p->bImplicitFrame;
-    }
-  }
-  return pNew;
-}
-
-/*
-** Return a copy of the linked list of Window objects passed as the
-** second argument.
-*/
-SQLITE_PRIVATE Window *tdsqlite3WindowListDup(tdsqlite3 *db, Window *p){
-  Window *pWin;
-  Window *pRet = 0;
-  Window **pp = &pRet;
-
-  for(pWin=p; pWin; pWin=pWin->pNextWin){
-    *pp = tdsqlite3WindowDup(db, 0, pWin);
-    if( *pp==0 ) break;
-    pp = &((*pp)->pNextWin);
-  }
-
-  return pRet;
-}
-
-/*
-** Return true if it can be determined at compile time that expression 
-** pExpr evaluates to a value that, when cast to an integer, is greater 
-** than zero. False otherwise.
-**
-** If an OOM error occurs, this function sets the Parse.db.mallocFailed 
-** flag and returns zero.
-*/
-static int windowExprGtZero(Parse *pParse, Expr *pExpr){
-  int ret = 0;
-  tdsqlite3 *db = pParse->db;
-  tdsqlite3_value *pVal = 0;
-  tdsqlite3ValueFromExpr(db, pExpr, db->enc, SQLITE_AFF_NUMERIC, &pVal);
-  if( pVal && tdsqlite3_value_int(pVal)>0 ){
-    ret = 1;
-  }
-  tdsqlite3ValueFree(pVal);
-  return ret;
-}
-
-/*
-** tdsqlite3WhereBegin() has already been called for the SELECT statement 
-** passed as the second argument when this function is invoked. It generates
-** code to populate the Window.regResult register for each window function 
-** and invoke the sub-routine at instruction addrGosub once for each row.
-** tdsqlite3WhereEnd() is always called before returning. 
-**
-** This function handles several different types of window frames, which
-** require slightly different processing. The following pseudo code is
-** used to implement window frames of the form:
-**
-**   ROWS BETWEEN <expr1> PRECEDING AND <expr2> FOLLOWING
-**
-** Other window frame types use variants of the following:
-**
-**     ... loop started by tdsqlite3WhereBegin() ...
-**       if( new partition ){
-**         Gosub flush
-**       }
-**       Insert new row into eph table.
-**       
-**       if( first row of partition ){
-**         // Rewind three cursors, all open on the eph table.
-**         Rewind(csrEnd);
-**         Rewind(csrStart);
-**         Rewind(csrCurrent);
-**       
-**         regEnd = <expr2>          // FOLLOWING expression
-**         regStart = <expr1>        // PRECEDING expression
-**       }else{
-**         // First time this branch is taken, the eph table contains two 
-**         // rows. The first row in the partition, which all three cursors
-**         // currently point to, and the following row.
-**         AGGSTEP
-**         if( (regEnd--)<=0 ){
-**           RETURN_ROW
-**           if( (regStart--)<=0 ){
-**             AGGINVERSE
-**           }
-**         }
-**       }
-**     }
-**     flush:
-**       AGGSTEP
-**       while( 1 ){
-**         RETURN ROW
-**         if( csrCurrent is EOF ) break;
-**         if( (regStart--)<=0 ){
-**           AggInverse(csrStart)
-**           Next(csrStart)
-**         }
-**       }
-**
-** The pseudo-code above uses the following shorthand:
-**
-**   AGGSTEP:    invoke the aggregate xStep() function for each window function
-**               with arguments read from the current row of cursor csrEnd, then
-**               step cursor csrEnd forward one row (i.e. tdsqlite3BtreeNext()).
-**
-**   RETURN_ROW: return a row to the caller based on the contents of the 
-**               current row of csrCurrent and the current state of all 
-**               aggregates. Then step cursor csrCurrent forward one row.
-**
-**   AGGINVERSE: invoke the aggregate xInverse() function for each window 
-**               functions with arguments read from the current row of cursor
-**               csrStart. Then step csrStart forward one row.
-**
-** There are two other ROWS window frames that are handled significantly
-** differently from the above - "BETWEEN <expr> PRECEDING AND <expr> PRECEDING"
-** and "BETWEEN <expr> FOLLOWING AND <expr> FOLLOWING". These are special 
-** cases because they change the order in which the three cursors (csrStart,
-** csrCurrent and csrEnd) iterate through the ephemeral table. Cases that
-** use UNBOUNDED or CURRENT ROW are much simpler variations on one of these
-** three.
-**
-**   ROWS BETWEEN <expr1> PRECEDING AND <expr2> PRECEDING
-**
-**     ... loop started by tdsqlite3WhereBegin() ...
-**       if( new partition ){
-**         Gosub flush
-**       }
-**       Insert new row into eph table.
-**       if( first row of partition ){
-**         Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
-**         regEnd = <expr2>
-**         regStart = <expr1>
-**       }else{
-**         if( (regEnd--)<=0 ){
-**           AGGSTEP
-**         }
-**         RETURN_ROW
-**         if( (regStart--)<=0 ){
-**           AGGINVERSE
-**         }
-**       }
-**     }
-**     flush:
-**       if( (regEnd--)<=0 ){
-**         AGGSTEP
-**       }
-**       RETURN_ROW
-**
-**
-**   ROWS BETWEEN <expr1> FOLLOWING AND <expr2> FOLLOWING
-**
-**     ... loop started by tdsqlite3WhereBegin() ...
-**     if( new partition ){
-**       Gosub flush
-**     }
-**     Insert new row into eph table.
-**     if( first row of partition ){
-**       Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
-**       regEnd = <expr2>
-**       regStart = regEnd - <expr1>
-**     }else{
-**       AGGSTEP
-**       if( (regEnd--)<=0 ){
-**         RETURN_ROW
-**       }
-**       if( (regStart--)<=0 ){
-**         AGGINVERSE
-**       }
-**     }
-**   }
-**   flush:
-**     AGGSTEP
-**     while( 1 ){
-**       if( (regEnd--)<=0 ){
-**         RETURN_ROW
-**         if( eof ) break;
-**       }
-**       if( (regStart--)<=0 ){
-**         AGGINVERSE
-**         if( eof ) break
-**       }
-**     }
-**     while( !eof csrCurrent ){
-**       RETURN_ROW
-**     }
-**
-** For the most part, the patterns above are adapted to support UNBOUNDED by
-** assuming that it is equivalent to "infinity PRECEDING/FOLLOWING" and
-** CURRENT ROW by assuming that it is equivilent to "0 PRECEDING/FOLLOWING".
-** This is optimized of course - branches that will never be taken and
-** conditions that are always true are omitted from the VM code. The only
-** exceptional case is:
-**
-**   ROWS BETWEEN <expr1> FOLLOWING AND UNBOUNDED FOLLOWING
-**
-**     ... loop started by tdsqlite3WhereBegin() ...
-**     if( new partition ){
-**       Gosub flush
-**     }
-**     Insert new row into eph table.
-**     if( first row of partition ){
-**       Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
-**       regStart = <expr1>
-**     }else{
-**       AGGSTEP
-**     }
-**   }
-**   flush:
-**     AGGSTEP
-**     while( 1 ){
-**       if( (regStart--)<=0 ){
-**         AGGINVERSE
-**         if( eof ) break
-**       }
-**       RETURN_ROW
-**     }
-**     while( !eof csrCurrent ){
-**       RETURN_ROW
-**     }
-**
-** Also requiring special handling are the cases:
-**
-**   ROWS BETWEEN <expr1> PRECEDING AND <expr2> PRECEDING
-**   ROWS BETWEEN <expr1> FOLLOWING AND <expr2> FOLLOWING
-**
-** when (expr1 < expr2). This is detected at runtime, not by this function.
-** To handle this case, the pseudo-code programs depicted above are modified
-** slightly to be:
-**
-**     ... loop started by tdsqlite3WhereBegin() ...
-**     if( new partition ){
-**       Gosub flush
-**     }
-**     Insert new row into eph table.
-**     if( first row of partition ){
-**       Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
-**       regEnd = <expr2>
-**       regStart = <expr1>
-**       if( regEnd < regStart ){
-**         RETURN_ROW
-**         delete eph table contents
-**         continue
-**       }
-**     ...
-**
-** The new "continue" statement in the above jumps to the next iteration
-** of the outer loop - the one started by tdsqlite3WhereBegin().
-**
-** The various GROUPS cases are implemented using the same patterns as
-** ROWS. The VM code is modified slightly so that:
-**
-**   1. The else branch in the main loop is only taken if the row just
-**      added to the ephemeral table is the start of a new group. In
-**      other words, it becomes:
-**
-**         ... loop started by tdsqlite3WhereBegin() ...
-**         if( new partition ){
-**           Gosub flush
-**         }
-**         Insert new row into eph table.
-**         if( first row of partition ){
-**           Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
-**           regEnd = <expr2>
-**           regStart = <expr1>
-**         }else if( new group ){
-**           ... 
-**         }
-**       }
-**
-**   2. Instead of processing a single row, each RETURN_ROW, AGGSTEP or 
-**      AGGINVERSE step processes the current row of the relevant cursor and
-**      all subsequent rows belonging to the same group.
-**
-** RANGE window frames are a little different again. As for GROUPS, the 
-** main loop runs once per group only. And RETURN_ROW, AGGSTEP and AGGINVERSE
-** deal in groups instead of rows. As for ROWS and GROUPS, there are three
-** basic cases:
-**
-**   RANGE BETWEEN <expr1> PRECEDING AND <expr2> FOLLOWING
-**
-**     ... loop started by tdsqlite3WhereBegin() ...
-**       if( new partition ){
-**         Gosub flush
-**       }
-**       Insert new row into eph table.
-**       if( first row of partition ){
-**         Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
-**         regEnd = <expr2>
-**         regStart = <expr1>
-**       }else{
-**         AGGSTEP
-**         while( (csrCurrent.key + regEnd) < csrEnd.key ){
-**           RETURN_ROW
-**           while( csrStart.key + regStart) < csrCurrent.key ){
-**             AGGINVERSE
-**           }
-**         }
-**       }
-**     }
-**     flush:
-**       AGGSTEP
-**       while( 1 ){
-**         RETURN ROW
-**         if( csrCurrent is EOF ) break;
-**           while( csrStart.key + regStart) < csrCurrent.key ){
-**             AGGINVERSE
-**           }
-**         }
-**       }
-**
-** In the above notation, "csr.key" means the current value of the ORDER BY 
-** expression (there is only ever 1 for a RANGE that uses an <expr> FOLLOWING
-** or <expr PRECEDING) read from cursor csr.
-**
-**   RANGE BETWEEN <expr1> PRECEDING AND <expr2> PRECEDING
-**
-**     ... loop started by tdsqlite3WhereBegin() ...
-**       if( new partition ){
-**         Gosub flush
-**       }
-**       Insert new row into eph table.
-**       if( first row of partition ){
-**         Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
-**         regEnd = <expr2>
-**         regStart = <expr1>
-**       }else{
-**         while( (csrEnd.key + regEnd) <= csrCurrent.key ){
-**           AGGSTEP
-**         }
-**         while( (csrStart.key + regStart) < csrCurrent.key ){
-**           AGGINVERSE
-**         }
-**         RETURN_ROW
-**       }
-**     }
-**     flush:
-**       while( (csrEnd.key + regEnd) <= csrCurrent.key ){
-**         AGGSTEP
-**       }
-**       while( (csrStart.key + regStart) < csrCurrent.key ){
-**         AGGINVERSE
-**       }
-**       RETURN_ROW
-**
-**   RANGE BETWEEN <expr1> FOLLOWING AND <expr2> FOLLOWING
-**
-**     ... loop started by tdsqlite3WhereBegin() ...
-**       if( new partition ){
-**         Gosub flush
-**       }
-**       Insert new row into eph table.
-**       if( first row of partition ){
-**         Rewind(csrEnd) ; Rewind(csrStart) ; Rewind(csrCurrent)
-**         regEnd = <expr2>
-**         regStart = <expr1>
-**       }else{
-**         AGGSTEP
-**         while( (csrCurrent.key + regEnd) < csrEnd.key ){
-**           while( (csrCurrent.key + regStart) > csrStart.key ){
-**             AGGINVERSE
-**           }
-**           RETURN_ROW
-**         }
-**       }
-**     }
-**     flush:
-**       AGGSTEP
-**       while( 1 ){
-**         while( (csrCurrent.key + regStart) > csrStart.key ){
-**           AGGINVERSE
-**           if( eof ) break "while( 1 )" loop.
-**         }
-**         RETURN_ROW
-**       }
-**       while( !eof csrCurrent ){
-**         RETURN_ROW
-**       }
-**
-** The text above leaves out many details. Refer to the code and comments
-** below for a more complete picture.
-*/
-SQLITE_PRIVATE void tdsqlite3WindowCodeStep(
-  Parse *pParse,                  /* Parse context */
-  Select *p,                      /* Rewritten SELECT statement */
-  WhereInfo *pWInfo,              /* Context returned by tdsqlite3WhereBegin() */
-  int regGosub,                   /* Register for OP_Gosub */
-  int addrGosub                   /* OP_Gosub here to return each row */
-){
-  Window *pMWin = p->pWin;
-  ExprList *pOrderBy = pMWin->pOrderBy;
-  Vdbe *v = tdsqlite3GetVdbe(pParse);
-  int csrWrite;                   /* Cursor used to write to eph. table */
-  int csrInput = p->pSrc->a[0].iCursor;     /* Cursor of sub-select */
-  int nInput = p->pSrc->a[0].pTab->nCol;    /* Number of cols returned by sub */
-  int iInput;                               /* To iterate through sub cols */
-  int addrNe;                     /* Address of OP_Ne */
-  int addrGosubFlush = 0;         /* Address of OP_Gosub to flush: */
-  int addrInteger = 0;            /* Address of OP_Integer */
-  int addrEmpty;                  /* Address of OP_Rewind in flush: */
-  int regNew;                     /* Array of registers holding new input row */
-  int regRecord;                  /* regNew array in record form */
-  int regRowid;                   /* Rowid for regRecord in eph table */
-  int regNewPeer = 0;             /* Peer values for new row (part of regNew) */
-  int regPeer = 0;                /* Peer values for current row */
-  int regFlushPart = 0;           /* Register for "Gosub flush_partition" */
-  WindowCodeArg s;                /* Context object for sub-routines */
-  int lblWhereEnd;                /* Label just before tdsqlite3WhereEnd() code */
-  int regStart = 0;               /* Value of <expr> PRECEDING */
-  int regEnd = 0;                 /* Value of <expr> FOLLOWING */
-
-  assert( pMWin->eStart==TK_PRECEDING || pMWin->eStart==TK_CURRENT 
-       || pMWin->eStart==TK_FOLLOWING || pMWin->eStart==TK_UNBOUNDED 
-  );
-  assert( pMWin->eEnd==TK_FOLLOWING || pMWin->eEnd==TK_CURRENT 
-       || pMWin->eEnd==TK_UNBOUNDED || pMWin->eEnd==TK_PRECEDING 
-  );
-  assert( pMWin->eExclude==0 || pMWin->eExclude==TK_CURRENT
-       || pMWin->eExclude==TK_GROUP || pMWin->eExclude==TK_TIES
-       || pMWin->eExclude==TK_NO
-  );
-
-  lblWhereEnd = tdsqlite3VdbeMakeLabel(pParse);
-
-  /* Fill in the context object */
-  memset(&s, 0, sizeof(WindowCodeArg));
-  s.pParse = pParse;
-  s.pMWin = pMWin;
-  s.pVdbe = v;
-  s.regGosub = regGosub;
-  s.addrGosub = addrGosub;
-  s.current.csr = pMWin->iEphCsr;
-  csrWrite = s.current.csr+1;
-  s.start.csr = s.current.csr+2;
-  s.end.csr = s.current.csr+3;
-
-  /* Figure out when rows may be deleted from the ephemeral table. There
-  ** are four options - they may never be deleted (eDelete==0), they may 
-  ** be deleted as soon as they are no longer part of the window frame
-  ** (eDelete==WINDOW_AGGINVERSE), they may be deleted as after the row 
-  ** has been returned to the caller (WINDOW_RETURN_ROW), or they may
-  ** be deleted after they enter the frame (WINDOW_AGGSTEP). */
-  switch( pMWin->eStart ){
-    case TK_FOLLOWING:
-      if( pMWin->eFrmType!=TK_RANGE
-       && windowExprGtZero(pParse, pMWin->pStart)
-      ){
-        s.eDelete = WINDOW_RETURN_ROW;
-      }
-      break;
-    case TK_UNBOUNDED:
-      if( windowCacheFrame(pMWin)==0 ){
-        if( pMWin->eEnd==TK_PRECEDING ){
-          if( pMWin->eFrmType!=TK_RANGE
-           && windowExprGtZero(pParse, pMWin->pEnd)
-          ){
-            s.eDelete = WINDOW_AGGSTEP;
-          }
-        }else{
-          s.eDelete = WINDOW_RETURN_ROW;
-        }
-      }
-      break;
-    default:
-      s.eDelete = WINDOW_AGGINVERSE;
-      break;
-  }
-
-  /* Allocate registers for the array of values from the sub-query, the
-  ** samve values in record form, and the rowid used to insert said record
-  ** into the ephemeral table.  */
-  regNew = pParse->nMem+1;
-  pParse->nMem += nInput;
-  regRecord = ++pParse->nMem;
-  regRowid = ++pParse->nMem;
-
-  /* If the window frame contains an "<expr> PRECEDING" or "<expr> FOLLOWING"
-  ** clause, allocate registers to store the results of evaluating each
-  ** <expr>.  */
-  if( pMWin->eStart==TK_PRECEDING || pMWin->eStart==TK_FOLLOWING ){
-    regStart = ++pParse->nMem;
-  }
-  if( pMWin->eEnd==TK_PRECEDING || pMWin->eEnd==TK_FOLLOWING ){
-    regEnd = ++pParse->nMem;
-  }
-
-  /* If this is not a "ROWS BETWEEN ..." frame, then allocate arrays of
-  ** registers to store copies of the ORDER BY expressions (peer values) 
-  ** for the main loop, and for each cursor (start, current and end). */
-  if( pMWin->eFrmType!=TK_ROWS ){
-    int nPeer = (pOrderBy ? pOrderBy->nExpr : 0);
-    regNewPeer = regNew + pMWin->nBufferCol;
-    if( pMWin->pPartition ) regNewPeer += pMWin->pPartition->nExpr;
-    regPeer = pParse->nMem+1;       pParse->nMem += nPeer;
-    s.start.reg = pParse->nMem+1;   pParse->nMem += nPeer;
-    s.current.reg = pParse->nMem+1; pParse->nMem += nPeer;
-    s.end.reg = pParse->nMem+1;     pParse->nMem += nPeer;
-  }
-
-  /* Load the column values for the row returned by the sub-select
-  ** into an array of registers starting at regNew. Assemble them into
-  ** a record in register regRecord. */
-  for(iInput=0; iInput<nInput; iInput++){
-    tdsqlite3VdbeAddOp3(v, OP_Column, csrInput, iInput, regNew+iInput);
-  }
-  tdsqlite3VdbeAddOp3(v, OP_MakeRecord, regNew, nInput, regRecord);
-
-  /* An input row has just been read into an array of registers starting
-  ** at regNew. If the window has a PARTITION clause, this block generates 
-  ** VM code to check if the input row is the start of a new partition.
-  ** If so, it does an OP_Gosub to an address to be filled in later. The
-  ** address of the OP_Gosub is stored in local variable addrGosubFlush. */
-  if( pMWin->pPartition ){
-    int addr;
-    ExprList *pPart = pMWin->pPartition;
-    int nPart = pPart->nExpr;
-    int regNewPart = regNew + pMWin->nBufferCol;
-    KeyInfo *pKeyInfo = tdsqlite3KeyInfoFromExprList(pParse, pPart, 0, 0);
-
-    regFlushPart = ++pParse->nMem;
-    addr = tdsqlite3VdbeAddOp3(v, OP_Compare, regNewPart, pMWin->regPart, nPart);
-    tdsqlite3VdbeAppendP4(v, (void*)pKeyInfo, P4_KEYINFO);
-    tdsqlite3VdbeAddOp3(v, OP_Jump, addr+2, addr+4, addr+2);
-    VdbeCoverageEqNe(v);
-    addrGosubFlush = tdsqlite3VdbeAddOp1(v, OP_Gosub, regFlushPart);
-    VdbeComment((v, "call flush_partition"));
-    tdsqlite3VdbeAddOp3(v, OP_Copy, regNewPart, pMWin->regPart, nPart-1);
-  }
-
-  /* Insert the new row into the ephemeral table */
-  tdsqlite3VdbeAddOp2(v, OP_NewRowid, csrWrite, regRowid);
-  tdsqlite3VdbeAddOp3(v, OP_Insert, csrWrite, regRecord, regRowid);
-  addrNe = tdsqlite3VdbeAddOp3(v, OP_Ne, pMWin->regOne, 0, regRowid);
-  VdbeCoverageNeverNull(v);
-
-  /* This block is run for the first row of each partition */
-  s.regArg = windowInitAccum(pParse, pMWin);
-
-  if( regStart ){
-    tdsqlite3ExprCode(pParse, pMWin->pStart, regStart);
-    windowCheckValue(pParse, regStart, 0 + (pMWin->eFrmType==TK_RANGE?3:0));
-  }
-  if( regEnd ){
-    tdsqlite3ExprCode(pParse, pMWin->pEnd, regEnd);
-    windowCheckValue(pParse, regEnd, 1 + (pMWin->eFrmType==TK_RANGE?3:0));
-  }
-
-  if( pMWin->eFrmType!=TK_RANGE && pMWin->eStart==pMWin->eEnd && regStart ){
-    int op = ((pMWin->eStart==TK_FOLLOWING) ? OP_Ge : OP_Le);
-    int addrGe = tdsqlite3VdbeAddOp3(v, op, regStart, 0, regEnd);
-    VdbeCoverageNeverNullIf(v, op==OP_Ge); /* NeverNull because bound <expr> */
-    VdbeCoverageNeverNullIf(v, op==OP_Le); /*   values previously checked */
-    windowAggFinal(&s, 0);
-    tdsqlite3VdbeAddOp2(v, OP_Rewind, s.current.csr, 1);
-    VdbeCoverageNeverTaken(v);
-    windowReturnOneRow(&s);
-    tdsqlite3VdbeAddOp1(v, OP_ResetSorter, s.current.csr);
-    tdsqlite3VdbeAddOp2(v, OP_Goto, 0, lblWhereEnd);
-    tdsqlite3VdbeJumpHere(v, addrGe);
-  }
-  if( pMWin->eStart==TK_FOLLOWING && pMWin->eFrmType!=TK_RANGE && regEnd ){
-    assert( pMWin->eEnd==TK_FOLLOWING );
-    tdsqlite3VdbeAddOp3(v, OP_Subtract, regStart, regEnd, regStart);
-  }
-
-  if( pMWin->eStart!=TK_UNBOUNDED ){
-    tdsqlite3VdbeAddOp2(v, OP_Rewind, s.start.csr, 1);
-    VdbeCoverageNeverTaken(v);
-  }
-  tdsqlite3VdbeAddOp2(v, OP_Rewind, s.current.csr, 1);
-  VdbeCoverageNeverTaken(v);
-  tdsqlite3VdbeAddOp2(v, OP_Rewind, s.end.csr, 1);
-  VdbeCoverageNeverTaken(v);
-  if( regPeer && pOrderBy ){
-    tdsqlite3VdbeAddOp3(v, OP_Copy, regNewPeer, regPeer, pOrderBy->nExpr-1);
-    tdsqlite3VdbeAddOp3(v, OP_Copy, regPeer, s.start.reg, pOrderBy->nExpr-1);
-    tdsqlite3VdbeAddOp3(v, OP_Copy, regPeer, s.current.reg, pOrderBy->nExpr-1);
-    tdsqlite3VdbeAddOp3(v, OP_Copy, regPeer, s.end.reg, pOrderBy->nExpr-1);
-  }
-
-  tdsqlite3VdbeAddOp2(v, OP_Goto, 0, lblWhereEnd);
-
-  tdsqlite3VdbeJumpHere(v, addrNe);
-
-  /* Beginning of the block executed for the second and subsequent rows. */
-  if( regPeer ){
-    windowIfNewPeer(pParse, pOrderBy, regNewPeer, regPeer, lblWhereEnd);
-  }
-  if( pMWin->eStart==TK_FOLLOWING ){
-    windowCodeOp(&s, WINDOW_AGGSTEP, 0, 0);
-    if( pMWin->eEnd!=TK_UNBOUNDED ){
-      if( pMWin->eFrmType==TK_RANGE ){
-        int lbl = tdsqlite3VdbeMakeLabel(pParse);
-        int addrNext = tdsqlite3VdbeCurrentAddr(v);
-        windowCodeRangeTest(&s, OP_Ge, s.current.csr, regEnd, s.end.csr, lbl);
-        windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);
-        windowCodeOp(&s, WINDOW_RETURN_ROW, 0, 0);
-        tdsqlite3VdbeAddOp2(v, OP_Goto, 0, addrNext);
-        tdsqlite3VdbeResolveLabel(v, lbl);
-      }else{
-        windowCodeOp(&s, WINDOW_RETURN_ROW, regEnd, 0);
-        windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);
-      }
-    }
-  }else
-  if( pMWin->eEnd==TK_PRECEDING ){
-    int bRPS = (pMWin->eStart==TK_PRECEDING && pMWin->eFrmType==TK_RANGE);
-    windowCodeOp(&s, WINDOW_AGGSTEP, regEnd, 0);
-    if( bRPS ) windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);
-    windowCodeOp(&s, WINDOW_RETURN_ROW, 0, 0);
-    if( !bRPS ) windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);
-  }else{
-    int addr = 0;
-    windowCodeOp(&s, WINDOW_AGGSTEP, 0, 0);
-    if( pMWin->eEnd!=TK_UNBOUNDED ){
-      if( pMWin->eFrmType==TK_RANGE ){
-        int lbl = 0;
-        addr = tdsqlite3VdbeCurrentAddr(v);
-        if( regEnd ){
-          lbl = tdsqlite3VdbeMakeLabel(pParse);
-          windowCodeRangeTest(&s, OP_Ge, s.current.csr, regEnd, s.end.csr, lbl);
-        }
-        windowCodeOp(&s, WINDOW_RETURN_ROW, 0, 0);
-        windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);
-        if( regEnd ){
-          tdsqlite3VdbeAddOp2(v, OP_Goto, 0, addr);
-          tdsqlite3VdbeResolveLabel(v, lbl);
-        }
-      }else{
-        if( regEnd ){
-          addr = tdsqlite3VdbeAddOp3(v, OP_IfPos, regEnd, 0, 1);
-          VdbeCoverage(v);
-        }
-        windowCodeOp(&s, WINDOW_RETURN_ROW, 0, 0);
-        windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);
-        if( regEnd ) tdsqlite3VdbeJumpHere(v, addr);
-      }
-    }
-  }
-
-  /* End of the main input loop */
-  tdsqlite3VdbeResolveLabel(v, lblWhereEnd);
-  tdsqlite3WhereEnd(pWInfo);
-
-  /* Fall through */
-  if( pMWin->pPartition ){
-    addrInteger = tdsqlite3VdbeAddOp2(v, OP_Integer, 0, regFlushPart);
-    tdsqlite3VdbeJumpHere(v, addrGosubFlush);
-  }
-
-  addrEmpty = tdsqlite3VdbeAddOp1(v, OP_Rewind, csrWrite);
-  VdbeCoverage(v);
-  if( pMWin->eEnd==TK_PRECEDING ){
-    int bRPS = (pMWin->eStart==TK_PRECEDING && pMWin->eFrmType==TK_RANGE);
-    windowCodeOp(&s, WINDOW_AGGSTEP, regEnd, 0);
-    if( bRPS ) windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);
-    windowCodeOp(&s, WINDOW_RETURN_ROW, 0, 0);
-  }else if( pMWin->eStart==TK_FOLLOWING ){
-    int addrStart;
-    int addrBreak1;
-    int addrBreak2;
-    int addrBreak3;
-    windowCodeOp(&s, WINDOW_AGGSTEP, 0, 0);
-    if( pMWin->eFrmType==TK_RANGE ){
-      addrStart = tdsqlite3VdbeCurrentAddr(v);
-      addrBreak2 = windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 1);
-      addrBreak1 = windowCodeOp(&s, WINDOW_RETURN_ROW, 0, 1);
-    }else
-    if( pMWin->eEnd==TK_UNBOUNDED ){
-      addrStart = tdsqlite3VdbeCurrentAddr(v);
-      addrBreak1 = windowCodeOp(&s, WINDOW_RETURN_ROW, regStart, 1);
-      addrBreak2 = windowCodeOp(&s, WINDOW_AGGINVERSE, 0, 1);
-    }else{
-      assert( pMWin->eEnd==TK_FOLLOWING );
-      addrStart = tdsqlite3VdbeCurrentAddr(v);
-      addrBreak1 = windowCodeOp(&s, WINDOW_RETURN_ROW, regEnd, 1);
-      addrBreak2 = windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 1);
-    }
-    tdsqlite3VdbeAddOp2(v, OP_Goto, 0, addrStart);
-    tdsqlite3VdbeJumpHere(v, addrBreak2);
-    addrStart = tdsqlite3VdbeCurrentAddr(v);
-    addrBreak3 = windowCodeOp(&s, WINDOW_RETURN_ROW, 0, 1);
-    tdsqlite3VdbeAddOp2(v, OP_Goto, 0, addrStart);
-    tdsqlite3VdbeJumpHere(v, addrBreak1);
-    tdsqlite3VdbeJumpHere(v, addrBreak3);
-  }else{
-    int addrBreak;
-    int addrStart;
-    windowCodeOp(&s, WINDOW_AGGSTEP, 0, 0);
-    addrStart = tdsqlite3VdbeCurrentAddr(v);
-    addrBreak = windowCodeOp(&s, WINDOW_RETURN_ROW, 0, 1);
-    windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);
-    tdsqlite3VdbeAddOp2(v, OP_Goto, 0, addrStart);
-    tdsqlite3VdbeJumpHere(v, addrBreak);
-  }
-  tdsqlite3VdbeJumpHere(v, addrEmpty);
-
-  tdsqlite3VdbeAddOp1(v, OP_ResetSorter, s.current.csr);
-  if( pMWin->pPartition ){
-    if( pMWin->regStartRowid ){
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 1, pMWin->regStartRowid);
-      tdsqlite3VdbeAddOp2(v, OP_Integer, 0, pMWin->regEndRowid);
-    }
-    tdsqlite3VdbeChangeP1(v, addrInteger, tdsqlite3VdbeCurrentAddr(v));
-    tdsqlite3VdbeAddOp1(v, OP_Return, regFlushPart);
-  }
-}
-
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-/************** End of window.c **********************************************/
-/************** Begin file parse.c *******************************************/
-/*
-** 2000-05-29
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Driver template for the LEMON parser generator.
-**
-** The "lemon" program processes an LALR(1) input grammar file, then uses
-** this template to construct a parser.  The "lemon" program inserts text
-** at each "%%" line.  Also, any "P-a-r-s-e" identifer prefix (without the
-** interstitial "-" characters) contained in this template is changed into
-** the value of the %name directive from the grammar.  Otherwise, the content
-** of this template is copied straight through into the generate parser
-** source file.
-**
-** The following is the concatenation of all %include directives from the
-** input grammar file:
-*/
-/* #include <stdio.h> */
-/* #include <assert.h> */
-/************ Begin %include sections from the grammar ************************/
-
-/* #include "sqliteInt.h" */
-
-/*
-** Disable all error recovery processing in the parser push-down
-** automaton.
-*/
-#define YYNOERRORRECOVERY 1
-
-/*
-** Make yytestcase() the same as testcase()
-*/
-#define yytestcase(X) testcase(X)
-
-/*
-** Indicate that tdsqlite3ParserFree() will never be called with a null
-** pointer.
-*/
-#define YYPARSEFREENEVERNULL 1
-
-/*
-** In the amalgamation, the parse.c file generated by lemon and the
-** tokenize.c file are concatenated.  In that case, tdsqlite3RunParser()
-** has access to the the size of the yyParser object and so the parser
-** engine can be allocated from stack.  In that case, only the
-** tdsqlite3ParserInit() and tdsqlite3ParserFinalize() routines are invoked
-** and the tdsqlite3ParserAlloc() and tdsqlite3ParserFree() routines can be
-** omitted.
-*/
-#ifdef SQLITE_AMALGAMATION
-# define tdsqlite3Parser_ENGINEALWAYSONSTACK 1
-#endif
-
-/*
-** Alternative datatype for the argument to the malloc() routine passed
-** into tdsqlite3ParserAlloc().  The default is size_t.
-*/
-#define YYMALLOCARGTYPE  u64
-
-/*
-** An instance of the following structure describes the event of a
-** TRIGGER.  "a" is the event type, one of TK_UPDATE, TK_INSERT,
-** TK_DELETE, or TK_INSTEAD.  If the event is of the form
-**
-**      UPDATE ON (a,b,c)
-**
-** Then the "b" IdList records the list "a,b,c".
-*/
-struct TrigEvent { int a; IdList * b; };
-
-struct FrameBound     { int eType; Expr *pExpr; };
-
-/*
-** Disable lookaside memory allocation for objects that might be
-** shared across database connections.
-*/
-static void disableLookaside(Parse *pParse){
-  tdsqlite3 *db = pParse->db;
-  pParse->disableLookaside++;
-  DisableLookaside;
-}
-
-
-  /*
-  ** For a compound SELECT statement, make sure p->pPrior->pNext==p for
-  ** all elements in the list.  And make sure list length does not exceed
-  ** SQLITE_LIMIT_COMPOUND_SELECT.
-  */
-  static void parserDoubleLinkSelect(Parse *pParse, Select *p){
-    assert( p!=0 );
-    if( p->pPrior ){
-      Select *pNext = 0, *pLoop;
-      int mxSelect, cnt = 0;
-      for(pLoop=p; pLoop; pNext=pLoop, pLoop=pLoop->pPrior, cnt++){
-        pLoop->pNext = pNext;
-        pLoop->selFlags |= SF_Compound;
-      }
-      if( (p->selFlags & SF_MultiValue)==0 && 
-        (mxSelect = pParse->db->aLimit[SQLITE_LIMIT_COMPOUND_SELECT])>0 &&
-        cnt>mxSelect
-      ){
-        tdsqlite3ErrorMsg(pParse, "too many terms in compound SELECT");
-      }
-    }
-  }
-
-
-  /* Construct a new Expr object from a single identifier.  Use the
-  ** new Expr to populate pOut.  Set the span of pOut to be the identifier
-  ** that created the expression.
-  */
-  static Expr *tokenExpr(Parse *pParse, int op, Token t){
-    Expr *p = tdsqlite3DbMallocRawNN(pParse->db, sizeof(Expr)+t.n+1);
-    if( p ){
-      /* memset(p, 0, sizeof(Expr)); */
-      p->op = (u8)op;
-      p->affExpr = 0;
-      p->flags = EP_Leaf;
-      p->iAgg = -1;
-      p->pLeft = p->pRight = 0;
-      p->x.pList = 0;
-      p->pAggInfo = 0;
-      p->y.pTab = 0;
-      p->op2 = 0;
-      p->iTable = 0;
-      p->iColumn = 0;
-      p->u.zToken = (char*)&p[1];
-      memcpy(p->u.zToken, t.z, t.n);
-      p->u.zToken[t.n] = 0;
-      if( tdsqlite3Isquote(p->u.zToken[0]) ){
-        tdsqlite3DequoteExpr(p);
-      }
-#if SQLITE_MAX_EXPR_DEPTH>0
-      p->nHeight = 1;
-#endif  
-      if( IN_RENAME_OBJECT ){
-        return (Expr*)tdsqlite3RenameTokenMap(pParse, (void*)p, &t);
-      }
-    }
-    return p;
-  }
-
-
-  /* A routine to convert a binary TK_IS or TK_ISNOT expression into a
-  ** unary TK_ISNULL or TK_NOTNULL expression. */
-  static void binaryToUnaryIfNull(Parse *pParse, Expr *pY, Expr *pA, int op){
-    tdsqlite3 *db = pParse->db;
-    if( pA && pY && pY->op==TK_NULL && !IN_RENAME_OBJECT ){
-      pA->op = (u8)op;
-      tdsqlite3ExprDelete(db, pA->pRight);
-      pA->pRight = 0;
-    }
-  }
-
-  /* Add a single new term to an ExprList that is used to store a
-  ** list of identifiers.  Report an error if the ID list contains
-  ** a COLLATE clause or an ASC or DESC keyword, except ignore the
-  ** error while parsing a legacy schema.
-  */
-  static ExprList *parserAddExprIdListTerm(
-    Parse *pParse,
-    ExprList *pPrior,
-    Token *pIdToken,
-    int hasCollate,
-    int sortOrder
-  ){
-    ExprList *p = tdsqlite3ExprListAppend(pParse, pPrior, 0);
-    if( (hasCollate || sortOrder!=SQLITE_SO_UNDEFINED)
-        && pParse->db->init.busy==0
-    ){
-      tdsqlite3ErrorMsg(pParse, "syntax error after column name \"%.*s\"",
-                         pIdToken->n, pIdToken->z);
-    }
-    tdsqlite3ExprListSetName(pParse, p, pIdToken, 1);
-    return p;
-  }
-
-#if TK_SPAN>255
-# error too many tokens in the grammar
-#endif
-/**************** End of %include directives **********************************/
-/* These constants specify the various numeric values for terminal symbols
-** in a format understandable to "makeheaders".  This section is blank unless
-** "lemon" is run with the "-m" command-line option.
-***************** Begin makeheaders token definitions *************************/
-/**************** End makeheaders token definitions ***************************/
-
-/* The next sections is a series of control #defines.
-** various aspects of the generated parser.
-**    YYCODETYPE         is the data type used to store the integer codes
-**                       that represent terminal and non-terminal symbols.
-**                       "unsigned char" is used if there are fewer than
-**                       256 symbols.  Larger types otherwise.
-**    YYNOCODE           is a number of type YYCODETYPE that is not used for
-**                       any terminal or nonterminal symbol.
-**    YYFALLBACK         If defined, this indicates that one or more tokens
-**                       (also known as: "terminal symbols") have fall-back
-**                       values which should be used if the original symbol
-**                       would not parse.  This permits keywords to sometimes
-**                       be used as identifiers, for example.
-**    YYACTIONTYPE       is the data type used for "action codes" - numbers
-**                       that indicate what to do in response to the next
-**                       token.
-**    tdsqlite3ParserTOKENTYPE     is the data type used for minor type for terminal
-**                       symbols.  Background: A "minor type" is a semantic
-**                       value associated with a terminal or non-terminal
-**                       symbols.  For example, for an "ID" terminal symbol,
-**                       the minor type might be the name of the identifier.
-**                       Each non-terminal can have a different minor type.
-**                       Terminal symbols all have the same minor type, though.
-**                       This macros defines the minor type for terminal 
-**                       symbols.
-**    YYMINORTYPE        is the data type used for all minor types.
-**                       This is typically a union of many types, one of
-**                       which is tdsqlite3ParserTOKENTYPE.  The entry in the union
-**                       for terminal symbols is called "yy0".
-**    YYSTACKDEPTH       is the maximum depth of the parser's stack.  If
-**                       zero the stack is dynamically sized using realloc()
-**    tdsqlite3ParserARG_SDECL     A static variable declaration for the %extra_argument
-**    tdsqlite3ParserARG_PDECL     A parameter declaration for the %extra_argument
-**    tdsqlite3ParserARG_PARAM     Code to pass %extra_argument as a subroutine parameter
-**    tdsqlite3ParserARG_STORE     Code to store %extra_argument into yypParser
-**    tdsqlite3ParserARG_FETCH     Code to extract %extra_argument from yypParser
-**    tdsqlite3ParserCTX_*         As tdsqlite3ParserARG_ except for %extra_context
-**    YYERRORSYMBOL      is the code number of the error symbol.  If not
-**                       defined, then do no error processing.
-**    YYNSTATE           the combined number of states.
-**    YYNRULE            the number of rules in the grammar
-**    YYNTOKEN           Number of terminal symbols
-**    YY_MAX_SHIFT       Maximum value for shift actions
-**    YY_MIN_SHIFTREDUCE Minimum value for shift-reduce actions
-**    YY_MAX_SHIFTREDUCE Maximum value for shift-reduce actions
-**    YY_ERROR_ACTION    The yy_action[] code for syntax error
-**    YY_ACCEPT_ACTION   The yy_action[] code for accept
-**    YY_NO_ACTION       The yy_action[] code for no-op
-**    YY_MIN_REDUCE      Minimum value for reduce actions
-**    YY_MAX_REDUCE      Maximum value for reduce actions
-*/
-#ifndef INTERFACE
-# define INTERFACE 1
-#endif
-/************* Begin control #defines *****************************************/
-#define YYCODETYPE unsigned short int
-#define YYNOCODE 310
-#define YYACTIONTYPE unsigned short int
-#define YYWILDCARD 100
-#define tdsqlite3ParserTOKENTYPE Token
-typedef union {
-  int yyinit;
-  tdsqlite3ParserTOKENTYPE yy0;
-  SrcList* yy47;
-  u8 yy58;
-  struct FrameBound yy77;
-  With* yy131;
-  int yy192;
-  Expr* yy202;
-  struct {int value; int mask;} yy207;
-  struct TrigEvent yy230;
-  ExprList* yy242;
-  Window* yy303;
-  Upsert* yy318;
-  const char* yy436;
-  TriggerStep* yy447;
-  Select* yy539;
-  IdList* yy600;
-} YYMINORTYPE;
-#ifndef YYSTACKDEPTH
-#define YYSTACKDEPTH 100
-#endif
-#define tdsqlite3ParserARG_SDECL
-#define tdsqlite3ParserARG_PDECL
-#define tdsqlite3ParserARG_PARAM
-#define tdsqlite3ParserARG_FETCH
-#define tdsqlite3ParserARG_STORE
-#define tdsqlite3ParserCTX_SDECL Parse *pParse;
-#define tdsqlite3ParserCTX_PDECL ,Parse *pParse
-#define tdsqlite3ParserCTX_PARAM ,pParse
-#define tdsqlite3ParserCTX_FETCH Parse *pParse=yypParser->pParse;
-#define tdsqlite3ParserCTX_STORE yypParser->pParse=pParse;
-#define YYFALLBACK 1
-#define YYNSTATE             551
-#define YYNRULE              385
-#define YYNRULE_WITH_ACTION  325
-#define YYNTOKEN             181
-#define YY_MAX_SHIFT         550
-#define YY_MIN_SHIFTREDUCE   801
-#define YY_MAX_SHIFTREDUCE   1185
-#define YY_ERROR_ACTION      1186
-#define YY_ACCEPT_ACTION     1187
-#define YY_NO_ACTION         1188
-#define YY_MIN_REDUCE        1189
-#define YY_MAX_REDUCE        1573
-/************* End control #defines *******************************************/
-#define YY_NLOOKAHEAD ((int)(sizeof(yy_lookahead)/sizeof(yy_lookahead[0])))
-
-/* Define the yytestcase() macro to be a no-op if is not already defined
-** otherwise.
-**
-** Applications can choose to define yytestcase() in the %include section
-** to a macro that can assist in verifying code coverage.  For production
-** code the yytestcase() macro should be turned off.  But it is useful
-** for testing.
-*/
-#ifndef yytestcase
-# define yytestcase(X)
-#endif
-
-
-/* Next are the tables used to determine what action to take based on the
-** current state and lookahead token.  These tables are used to implement
-** functions that take a state number and lookahead value and return an
-** action integer.  
-**
-** Suppose the action integer is N.  Then the action is determined as
-** follows
-**
-**   0 <= N <= YY_MAX_SHIFT             Shift N.  That is, push the lookahead
-**                                      token onto the stack and goto state N.
-**
-**   N between YY_MIN_SHIFTREDUCE       Shift to an arbitrary state then
-**     and YY_MAX_SHIFTREDUCE           reduce by rule N-YY_MIN_SHIFTREDUCE.
-**
-**   N == YY_ERROR_ACTION               A syntax error has occurred.
-**
-**   N == YY_ACCEPT_ACTION              The parser accepts its input.
-**
-**   N == YY_NO_ACTION                  No such action.  Denotes unused
-**                                      slots in the yy_action[] table.
-**
-**   N between YY_MIN_REDUCE            Reduce by rule N-YY_MIN_REDUCE
-**     and YY_MAX_REDUCE
-**
-** The action table is constructed as a single large table named yy_action[].
-** Given state S and lookahead X, the action is computed as either:
-**
-**    (A)   N = yy_action[ yy_shift_ofst[S] + X ]
-**    (B)   N = yy_default[S]
-**
-** The (A) formula is preferred.  The B formula is used instead if
-** yy_lookahead[yy_shift_ofst[S]+X] is not equal to X.
-**
-** The formulas above are for computing the action when the lookahead is
-** a terminal symbol.  If the lookahead is a non-terminal (as occurs after
-** a reduce action) then the yy_reduce_ofst[] array is used in place of
-** the yy_shift_ofst[] array.
-**
-** The following are the tables generated in this section:
-**
-**  yy_action[]        A single table containing all actions.
-**  yy_lookahead[]     A table containing the lookahead for each entry in
-**                     yy_action.  Used to detect hash collisions.
-**  yy_shift_ofst[]    For each state, the offset into yy_action for
-**                     shifting terminals.
-**  yy_reduce_ofst[]   For each state, the offset into yy_action for
-**                     shifting non-terminals after a reduce.
-**  yy_default[]       Default action for each state.
-**
-*********** Begin parsing tables **********************************************/
-#define YY_ACTTAB_COUNT (1958)
-static const YYACTIONTYPE yy_action[] = {
- /*     0 */   544, 1220,  544,  449, 1258,  544, 1237,  544,  114,  111,
- /*    10 */   211,  544, 1535,  544, 1258,  521,  114,  111,  211,  390,
- /*    20 */  1230,  342,   42,   42,   42,   42, 1223,   42,   42,   71,
- /*    30 */    71,  935, 1222,   71,   71,   71,   71, 1460, 1491,  936,
- /*    40 */   818,  451,    6,  121,  122,  112, 1163, 1163, 1004, 1007,
- /*    50 */   997,  997,  119,  119,  120,  120,  120,  120, 1541,  390,
- /*    60 */  1356, 1515,  550,    2, 1191,  194,  526,  434,  143,  291,
- /*    70 */   526,  136,  526,  369,  261,  502,  272,  383, 1271,  525,
- /*    80 */   501,  491,  164,  121,  122,  112, 1163, 1163, 1004, 1007,
- /*    90 */   997,  997,  119,  119,  120,  120,  120,  120, 1356,  440,
- /*   100 */  1512,  118,  118,  118,  118,  117,  117,  116,  116,  116,
- /*   110 */   115,  422,  266,  266,  266,  266, 1496,  356, 1498,  433,
- /*   120 */   355, 1496,  515,  522, 1483,  541, 1112,  541, 1112,  390,
- /*   130 */   403,  241,  208,  114,  111,  211,   98,  290,  535,  221,
- /*   140 */  1027,  118,  118,  118,  118,  117,  117,  116,  116,  116,
- /*   150 */   115,  422, 1140,  121,  122,  112, 1163, 1163, 1004, 1007,
- /*   160 */   997,  997,  119,  119,  120,  120,  120,  120,  404,  426,
- /*   170 */   117,  117,  116,  116,  116,  115,  422, 1416,  466,  123,
- /*   180 */   118,  118,  118,  118,  117,  117,  116,  116,  116,  115,
- /*   190 */   422,  116,  116,  116,  115,  422,  538,  538,  538,  390,
- /*   200 */   503,  120,  120,  120,  120,  113, 1049, 1140, 1141, 1142,
- /*   210 */  1049,  118,  118,  118,  118,  117,  117,  116,  116,  116,
- /*   220 */   115,  422, 1459,  121,  122,  112, 1163, 1163, 1004, 1007,
- /*   230 */   997,  997,  119,  119,  120,  120,  120,  120,  390,  442,
- /*   240 */   314,   83,  461,   81,  357,  380, 1140,   80,  118,  118,
- /*   250 */   118,  118,  117,  117,  116,  116,  116,  115,  422,  179,
- /*   260 */   432,  422,  121,  122,  112, 1163, 1163, 1004, 1007,  997,
- /*   270 */   997,  119,  119,  120,  120,  120,  120,  432,  431,  266,
- /*   280 */   266,  118,  118,  118,  118,  117,  117,  116,  116,  116,
- /*   290 */   115,  422,  541, 1107,  901,  504, 1140,  114,  111,  211,
- /*   300 */  1429, 1140, 1141, 1142,  206,  489, 1107,  390,  447, 1107,
- /*   310 */   543,  328,  120,  120,  120,  120,  298, 1429, 1431,   17,
- /*   320 */   118,  118,  118,  118,  117,  117,  116,  116,  116,  115,
- /*   330 */   422,  121,  122,  112, 1163, 1163, 1004, 1007,  997,  997,
- /*   340 */   119,  119,  120,  120,  120,  120,  390, 1356,  432, 1140,
- /*   350 */   480, 1140, 1141, 1142,  994,  994, 1005, 1008,  443,  118,
- /*   360 */   118,  118,  118,  117,  117,  116,  116,  116,  115,  422,
- /*   370 */   121,  122,  112, 1163, 1163, 1004, 1007,  997,  997,  119,
- /*   380 */   119,  120,  120,  120,  120, 1052, 1052,  463, 1429,  118,
- /*   390 */   118,  118,  118,  117,  117,  116,  116,  116,  115,  422,
- /*   400 */  1140,  449,  544, 1424, 1140, 1141, 1142,  233,  964, 1140,
- /*   410 */   479,  476,  475,  171,  358,  390,  164,  405,  412,  840,
- /*   420 */   474,  164,  185,  332,   71,   71, 1241,  998,  118,  118,
- /*   430 */   118,  118,  117,  117,  116,  116,  116,  115,  422,  121,
- /*   440 */   122,  112, 1163, 1163, 1004, 1007,  997,  997,  119,  119,
- /*   450 */   120,  120,  120,  120,  390, 1140, 1141, 1142,  833,   12,
- /*   460 */   313,  507,  163,  354, 1140, 1141, 1142,  114,  111,  211,
- /*   470 */   506,  290,  535,  544,  276,  180,  290,  535,  121,  122,
- /*   480 */   112, 1163, 1163, 1004, 1007,  997,  997,  119,  119,  120,
- /*   490 */   120,  120,  120,  343,  482,   71,   71,  118,  118,  118,
- /*   500 */   118,  117,  117,  116,  116,  116,  115,  422, 1140,  209,
- /*   510 */   409,  521, 1140, 1107, 1569,  376,  252,  269,  340,  485,
- /*   520 */   335,  484,  238,  390,  511,  362, 1107, 1125,  331, 1107,
- /*   530 */   191,  407,  286,   32,  455,  441,  118,  118,  118,  118,
- /*   540 */   117,  117,  116,  116,  116,  115,  422,  121,  122,  112,
- /*   550 */  1163, 1163, 1004, 1007,  997,  997,  119,  119,  120,  120,
- /*   560 */   120,  120,  390, 1140, 1141, 1142,  985, 1140, 1141, 1142,
- /*   570 */  1140,  233,  490, 1490,  479,  476,  475,    6,  163,  544,
- /*   580 */   510,  544,  115,  422,  474,    5,  121,  122,  112, 1163,
- /*   590 */  1163, 1004, 1007,  997,  997,  119,  119,  120,  120,  120,
- /*   600 */   120,   13,   13,   13,   13,  118,  118,  118,  118,  117,
- /*   610 */   117,  116,  116,  116,  115,  422,  401,  500,  406,  544,
- /*   620 */  1484,  542, 1140,  890,  890, 1140, 1141, 1142, 1471, 1140,
- /*   630 */   275,  390,  806,  807,  808,  969,  420,  420,  420,   16,
- /*   640 */    16,   55,   55, 1240,  118,  118,  118,  118,  117,  117,
- /*   650 */   116,  116,  116,  115,  422,  121,  122,  112, 1163, 1163,
- /*   660 */  1004, 1007,  997,  997,  119,  119,  120,  120,  120,  120,
- /*   670 */   390, 1187,    1,    1,  550,    2, 1191, 1140, 1141, 1142,
- /*   680 */   194,  291,  896,  136, 1140, 1141, 1142,  895,  519, 1490,
- /*   690 */  1271,    3,  378,    6,  121,  122,  112, 1163, 1163, 1004,
- /*   700 */  1007,  997,  997,  119,  119,  120,  120,  120,  120,  856,
- /*   710 */   544,  922,  544,  118,  118,  118,  118,  117,  117,  116,
- /*   720 */   116,  116,  115,  422,  266,  266, 1090, 1567, 1140,  549,
- /*   730 */  1567, 1191,   13,   13,   13,   13,  291,  541,  136,  390,
- /*   740 */   483,  419,  418,  964,  342, 1271,  466,  408,  857,  279,
- /*   750 */   140,  221,  118,  118,  118,  118,  117,  117,  116,  116,
- /*   760 */   116,  115,  422,  121,  122,  112, 1163, 1163, 1004, 1007,
- /*   770 */   997,  997,  119,  119,  120,  120,  120,  120,  544,  266,
- /*   780 */   266,  426,  390, 1140, 1141, 1142, 1170,  828, 1170,  466,
- /*   790 */   429,  145,  541, 1144,  399,  313,  437,  301,  836, 1488,
- /*   800 */    71,   71,  410,    6, 1088,  471,  221,  100,  112, 1163,
- /*   810 */  1163, 1004, 1007,  997,  997,  119,  119,  120,  120,  120,
- /*   820 */   120,  118,  118,  118,  118,  117,  117,  116,  116,  116,
- /*   830 */   115,  422,  237, 1423,  544,  449,  426,  287,  984,  544,
- /*   840 */   236,  235,  234,  828,   97,  527,  427, 1263, 1263, 1144,
- /*   850 */   492,  306,  428,  836,  975,  544,   71,   71,  974, 1239,
- /*   860 */   544,   51,   51,  300,  118,  118,  118,  118,  117,  117,
- /*   870 */   116,  116,  116,  115,  422,  194,  103,   70,   70,  266,
- /*   880 */   266,  544,   71,   71,  266,  266,   30,  389,  342,  974,
- /*   890 */   974,  976,  541,  526, 1107,  326,  390,  541,  493,  395,
- /*   900 */  1468,  195,  528,   13,   13, 1356,  240, 1107,  277,  280,
- /*   910 */  1107,  280,  303,  455,  305,  331,  390,   31,  188,  417,
- /*   920 */   121,  122,  112, 1163, 1163, 1004, 1007,  997,  997,  119,
- /*   930 */   119,  120,  120,  120,  120,  142,  390,  363,  455,  984,
- /*   940 */   121,  122,  112, 1163, 1163, 1004, 1007,  997,  997,  119,
- /*   950 */   119,  120,  120,  120,  120,  975,  321, 1140,  324,  974,
- /*   960 */   121,  110,  112, 1163, 1163, 1004, 1007,  997,  997,  119,
- /*   970 */   119,  120,  120,  120,  120,  462,  375, 1183,  118,  118,
- /*   980 */   118,  118,  117,  117,  116,  116,  116,  115,  422, 1140,
- /*   990 */   974,  974,  976,  304,    9,  364,  244,  360,  118,  118,
- /*  1000 */   118,  118,  117,  117,  116,  116,  116,  115,  422,  312,
- /*  1010 */   544,  342, 1140, 1141, 1142,  299,  290,  535,  118,  118,
- /*  1020 */   118,  118,  117,  117,  116,  116,  116,  115,  422, 1261,
- /*  1030 */  1261, 1161,   13,   13,  278,  419,  418,  466,  390,  921,
- /*  1040 */   260,  260,  289, 1167, 1140, 1141, 1142,  189, 1169,  266,
- /*  1050 */   266,  466,  388,  541, 1184,  544, 1168,  263,  144,  487,
- /*  1060 */   920,  544,  541,  122,  112, 1163, 1163, 1004, 1007,  997,
- /*  1070 */   997,  119,  119,  120,  120,  120,  120,   71,   71, 1140,
- /*  1080 */  1170, 1270, 1170,   13,   13,  896, 1068, 1161,  544,  466,
- /*  1090 */   895,  107,  536, 1489,    4, 1266, 1107,    6,  523, 1047,
- /*  1100 */    12, 1069, 1090, 1568,  311,  453, 1568,  518,  539, 1107,
- /*  1110 */    56,   56, 1107, 1487,  421, 1356, 1070,    6,  343,  285,
- /*  1120 */   118,  118,  118,  118,  117,  117,  116,  116,  116,  115,
- /*  1130 */   422,  423, 1269,  319, 1140, 1141, 1142,  876,  266,  266,
- /*  1140 */  1275,  107,  536,  533,    4, 1486,  293,  877, 1209,    6,
- /*  1150 */   210,  541,  541,  164, 1540,  494,  414,  865,  539,  267,
- /*  1160 */   267, 1212,  396,  509,  497,  204,  266,  266,  394,  529,
- /*  1170 */     8,  984,  541,  517,  544,  920,  456,  105,  105,  541,
- /*  1180 */  1088,  423,  266,  266,  106,  415,  423,  546,  545,  266,
- /*  1190 */   266,  974,  516,  533, 1371,  541,   15,   15,  266,  266,
- /*  1200 */   454, 1118,  541,  266,  266, 1068, 1370,  513,  290,  535,
- /*  1210 */   544,  541,  512,   97,  442,  314,  541,  544,  920,  125,
- /*  1220 */  1069,  984,  974,  974,  976,  977,   27,  105,  105,  399,
- /*  1230 */   341, 1509,   44,   44,  106, 1070,  423,  546,  545,   57,
- /*  1240 */    57,  974,  341, 1509,  107,  536,  544,    4,  460,  399,
- /*  1250 */   214, 1118,  457,  294,  375, 1089,  532,  297,  544,  537,
- /*  1260 */   396,  539,  290,  535,  104,  244,  102,  524,   58,   58,
- /*  1270 */   544,  109,  974,  974,  976,  977,   27, 1514, 1129,  425,
- /*  1280 */    59,   59,  270,  237,  423,  138,   95,  373,  373,  372,
- /*  1290 */   255,  370,   60,   60,  815, 1178,  533,  544,  273,  544,
- /*  1300 */  1161,  843,  387,  386,  544, 1307,  544,  215,  210,  296,
- /*  1310 */   513,  847,  544,  265,  208,  514, 1306,  295,  274,   61,
- /*  1320 */    61,   62,   62,  436,  984, 1160,   45,   45,   46,   46,
- /*  1330 */   105,  105, 1184,  920,   47,   47, 1474,  106,  544,  423,
- /*  1340 */   546,  545,  218,  544,  974,  935, 1085,  217,  544,  377,
- /*  1350 */   395,  107,  536,  936,    4,  156, 1161,  843,  158,  544,
- /*  1360 */    49,   49,  141,  544,   38,   50,   50,  544,  539,  307,
- /*  1370 */    63,   63,  544, 1448,  216,  974,  974,  976,  977,   27,
- /*  1380 */   444,   64,   64,  544, 1447,   65,   65,  544,  524,   14,
- /*  1390 */    14,  423,  458,  544,   66,   66,  310,  544,  316,   97,
- /*  1400 */  1034,  544,  961,  533,  268,  127,  127,  544,  391,   67,
- /*  1410 */    67,  544,  978,  290,  535,   52,   52,  513,  544,   68,
- /*  1420 */    68, 1294,  512,   69,   69,  397,  165,  855,  854,   53,
- /*  1430 */    53,  984,  966,  151,  151,  243,  430,  105,  105,  199,
- /*  1440 */   152,  152,  448, 1303,  106,  243,  423,  546,  545, 1129,
- /*  1450 */   425,  974,  320,  270,  862,  863, 1034,  220,  373,  373,
- /*  1460 */   372,  255,  370,  450,  323,  815,  243,  544,  978,  544,
- /*  1470 */   107,  536,  544,    4,  544,  938,  939,  325,  215, 1046,
- /*  1480 */   296, 1046,  974,  974,  976,  977,   27,  539,  295,   76,
- /*  1490 */    76,   54,   54,  327,   72,   72,  128,  128, 1503, 1254,
- /*  1500 */   107,  536,  544,    4, 1045,  544, 1045,  531, 1238,  544,
- /*  1510 */   423,  544,  315,  334,  544,   97,  544,  539,  217,  544,
- /*  1520 */   472, 1528,  533,  239,   73,   73,  156,  129,  129,  158,
- /*  1530 */   467,  130,  130,  126,  126,  344,  150,  150,  149,  149,
- /*  1540 */   423,  134,  134,  329, 1030,  216,   97,  239,  929,  345,
- /*  1550 */   984,  243,  533, 1315,  339,  544,  105,  105,  900, 1355,
- /*  1560 */   544, 1290,  258,  106,  338,  423,  546,  545,  544, 1301,
- /*  1570 */   974,  893,   99,  536,  109,    4,  544,  133,  133,  391,
- /*  1580 */   984,  197,  131,  131,  290,  535,  105,  105,  530,  539,
- /*  1590 */   132,  132, 1361,  106, 1219,  423,  546,  545,   75,   75,
- /*  1600 */   974,  974,  974,  976,  977,   27,  544,  430,  826, 1211,
- /*  1610 */   894,  139,  423,  109,  544, 1200, 1199, 1201, 1522,  544,
- /*  1620 */   201,  544,   11,  374,  533, 1287,  347,  349,   77,   77,
- /*  1630 */  1340,  974,  974,  976,  977,   27,   74,   74,  351,  213,
- /*  1640 */   435,   43,   43,   48,   48,  302,  477,  309, 1348,  382,
- /*  1650 */   353,  452,  984,  337, 1237, 1420, 1419,  205,  105,  105,
- /*  1660 */   192,  367,  193,  534, 1525,  106, 1178,  423,  546,  545,
- /*  1670 */   247,  167,  974,  270, 1467,  200, 1465, 1175,  373,  373,
- /*  1680 */   372,  255,  370,  398,   79,  815,   83,   82, 1425,  446,
- /*  1690 */   161,  177,  169,   95, 1337,  438,  172,  173,  215,  174,
- /*  1700 */   296,  175,   35,  974,  974,  976,  977,   27,  295, 1345,
- /*  1710 */   439,  470,  223,   36,  379,  445, 1414,  381,  459, 1351,
- /*  1720 */   181,  227,   88,  465,  259,  229, 1436,  318,  186,  468,
- /*  1730 */   322,  230,  384, 1202,  231,  486, 1257, 1256,  217,  411,
- /*  1740 */  1255, 1248,   90,  847,  206,  413,  156,  505, 1539,  158,
- /*  1750 */  1226, 1538,  283, 1508, 1227,  336,  385,  284, 1225,  496,
- /*  1760 */  1537, 1298,   94,  346,  348,  216, 1247,  499, 1299,  245,
- /*  1770 */   246, 1297,  416,  350, 1494,  124, 1493,   10,  524,  361,
- /*  1780 */  1400,  101,   96,  288,  508,  253, 1135, 1208,   34, 1296,
- /*  1790 */   547,  254,  256,  257,  392,  548, 1197, 1192,  359,  391,
- /*  1800 */  1280, 1279,  196,  365,  290,  535,  366,  352, 1452, 1322,
- /*  1810 */  1321, 1453,  153,  137,  281,  154,  802,  424,  155, 1451,
- /*  1820 */  1450,  198,  292,  202,  203,   78,  212,  430,  271,  135,
- /*  1830 */  1044, 1042,  958,  168,  219,  157,  170,  879,  308,  222,
- /*  1840 */  1058,  176,  159,  962,  400,   84,  402,  178,   85,   86,
- /*  1850 */    87,  166,  160,  393, 1061,  224,  225, 1057,  146,   18,
- /*  1860 */   226,  317, 1050, 1172,  243,  464,  182,  228,   37,  183,
- /*  1870 */   817,  469,  338,  232,  330,  481,  184,   89,  845,   19,
- /*  1880 */    20,   92,  473,  478,  333,   91,  162,  858,  147,  488,
- /*  1890 */   282, 1123,  148, 1010,  928, 1093,   39,   93,   40,  495,
- /*  1900 */  1094,  187,  498,  207,  262,  264,  923,  242, 1109,  109,
- /*  1910 */  1113, 1111, 1097,   33,   21, 1117,  520, 1025,   22,   23,
- /*  1920 */    24, 1116,   25,  190,   97, 1011, 1009,   26, 1013, 1067,
- /*  1930 */   248,    7, 1066,  249, 1014,   28,   41,  889,  979,  827,
- /*  1940 */   108,   29,  250,  540,  251, 1530,  371,  368, 1131, 1130,
- /*  1950 */  1188, 1188, 1188, 1188, 1188, 1188, 1188, 1529,
-};
-static const YYCODETYPE yy_lookahead[] = {
- /*     0 */   189,  211,  189,  189,  218,  189,  220,  189,  267,  268,
- /*    10 */   269,  189,  210,  189,  228,  189,  267,  268,  269,   19,
- /*    20 */   218,  189,  211,  212,  211,  212,  211,  211,  212,  211,
- /*    30 */   212,   31,  211,  211,  212,  211,  212,  288,  300,   39,
- /*    40 */    21,  189,  304,   43,   44,   45,   46,   47,   48,   49,
- /*    50 */    50,   51,   52,   53,   54,   55,   56,   57,  225,   19,
- /*    60 */   189,  183,  184,  185,  186,  189,  248,  263,  236,  191,
- /*    70 */   248,  193,  248,  197,  208,  257,  262,  201,  200,  257,
- /*    80 */   200,  257,   81,   43,   44,   45,   46,   47,   48,   49,
- /*    90 */    50,   51,   52,   53,   54,   55,   56,   57,  189,   80,
- /*   100 */   189,  101,  102,  103,  104,  105,  106,  107,  108,  109,
- /*   110 */   110,  111,  234,  235,  234,  235,  305,  306,  305,  118,
- /*   120 */   307,  305,  306,  297,  298,  247,   86,  247,   88,   19,
- /*   130 */   259,  251,  252,  267,  268,  269,   26,  136,  137,  261,
- /*   140 */   121,  101,  102,  103,  104,  105,  106,  107,  108,  109,
- /*   150 */   110,  111,   59,   43,   44,   45,   46,   47,   48,   49,
- /*   160 */    50,   51,   52,   53,   54,   55,   56,   57,  259,  291,
- /*   170 */   105,  106,  107,  108,  109,  110,  111,  158,  189,   69,
- /*   180 */   101,  102,  103,  104,  105,  106,  107,  108,  109,  110,
- /*   190 */   111,  107,  108,  109,  110,  111,  205,  206,  207,   19,
- /*   200 */    19,   54,   55,   56,   57,   58,   29,  114,  115,  116,
- /*   210 */    33,  101,  102,  103,  104,  105,  106,  107,  108,  109,
- /*   220 */   110,  111,  233,   43,   44,   45,   46,   47,   48,   49,
- /*   230 */    50,   51,   52,   53,   54,   55,   56,   57,   19,  126,
- /*   240 */   127,  148,   65,   24,  214,  200,   59,   67,  101,  102,
- /*   250 */   103,  104,  105,  106,  107,  108,  109,  110,  111,   22,
- /*   260 */   189,  111,   43,   44,   45,   46,   47,   48,   49,   50,
- /*   270 */    51,   52,   53,   54,   55,   56,   57,  206,  207,  234,
- /*   280 */   235,  101,  102,  103,  104,  105,  106,  107,  108,  109,
- /*   290 */   110,  111,  247,   76,  107,  114,   59,  267,  268,  269,
- /*   300 */   189,  114,  115,  116,  162,  163,   89,   19,  263,   92,
- /*   310 */   189,   23,   54,   55,   56,   57,  189,  206,  207,   22,
- /*   320 */   101,  102,  103,  104,  105,  106,  107,  108,  109,  110,
- /*   330 */   111,   43,   44,   45,   46,   47,   48,   49,   50,   51,
- /*   340 */    52,   53,   54,   55,   56,   57,   19,  189,  277,   59,
- /*   350 */    23,  114,  115,  116,   46,   47,   48,   49,   61,  101,
- /*   360 */   102,  103,  104,  105,  106,  107,  108,  109,  110,  111,
- /*   370 */    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,
- /*   380 */    53,   54,   55,   56,   57,  125,  126,  127,  277,  101,
- /*   390 */   102,  103,  104,  105,  106,  107,  108,  109,  110,  111,
- /*   400 */    59,  189,  189,  276,  114,  115,  116,  117,   73,   59,
- /*   410 */   120,  121,  122,   72,  214,   19,   81,  259,   19,   23,
- /*   420 */   130,   81,   72,   24,  211,  212,  221,  119,  101,  102,
- /*   430 */   103,  104,  105,  106,  107,  108,  109,  110,  111,   43,
- /*   440 */    44,   45,   46,   47,   48,   49,   50,   51,   52,   53,
- /*   450 */    54,   55,   56,   57,   19,  114,  115,  116,   23,  208,
- /*   460 */   125,  248,  189,  189,  114,  115,  116,  267,  268,  269,
- /*   470 */   189,  136,  137,  189,  262,   22,  136,  137,   43,   44,
- /*   480 */    45,   46,   47,   48,   49,   50,   51,   52,   53,   54,
- /*   490 */    55,   56,   57,  189,   95,  211,  212,  101,  102,  103,
- /*   500 */   104,  105,  106,  107,  108,  109,  110,  111,   59,  189,
- /*   510 */   111,  189,   59,   76,  294,  295,  117,  118,  119,  120,
- /*   520 */   121,  122,  123,   19,   87,  189,   89,   23,  129,   92,
- /*   530 */   279,  227,  248,   22,  189,  284,  101,  102,  103,  104,
- /*   540 */   105,  106,  107,  108,  109,  110,  111,   43,   44,   45,
- /*   550 */    46,   47,   48,   49,   50,   51,   52,   53,   54,   55,
- /*   560 */    56,   57,   19,  114,  115,  116,   23,  114,  115,  116,
- /*   570 */    59,  117,  299,  300,  120,  121,  122,  304,  189,  189,
- /*   580 */   143,  189,  110,  111,  130,   22,   43,   44,   45,   46,
- /*   590 */    47,   48,   49,   50,   51,   52,   53,   54,   55,   56,
- /*   600 */    57,  211,  212,  211,  212,  101,  102,  103,  104,  105,
- /*   610 */   106,  107,  108,  109,  110,  111,  226,  189,  226,  189,
- /*   620 */   298,  132,   59,  134,  135,  114,  115,  116,  189,   59,
- /*   630 */   285,   19,    7,    8,    9,   23,  205,  206,  207,  211,
- /*   640 */   212,  211,  212,  221,  101,  102,  103,  104,  105,  106,
- /*   650 */   107,  108,  109,  110,  111,   43,   44,   45,   46,   47,
- /*   660 */    48,   49,   50,   51,   52,   53,   54,   55,   56,   57,
- /*   670 */    19,  181,  182,  183,  184,  185,  186,  114,  115,  116,
- /*   680 */   189,  191,  133,  193,  114,  115,  116,  138,  299,  300,
- /*   690 */   200,   22,  201,  304,   43,   44,   45,   46,   47,   48,
- /*   700 */    49,   50,   51,   52,   53,   54,   55,   56,   57,   35,
- /*   710 */   189,  141,  189,  101,  102,  103,  104,  105,  106,  107,
- /*   720 */   108,  109,  110,  111,  234,  235,   22,   23,   59,  184,
- /*   730 */    26,  186,  211,  212,  211,  212,  191,  247,  193,   19,
- /*   740 */    66,  105,  106,   73,  189,  200,  189,  226,   74,  226,
- /*   750 */    22,  261,  101,  102,  103,  104,  105,  106,  107,  108,
- /*   760 */   109,  110,  111,   43,   44,   45,   46,   47,   48,   49,
- /*   770 */    50,   51,   52,   53,   54,   55,   56,   57,  189,  234,
- /*   780 */   235,  291,   19,  114,  115,  116,  150,   59,  152,  189,
- /*   790 */   233,  236,  247,   59,  189,  125,  126,  127,   59,  300,
- /*   800 */   211,  212,  128,  304,  100,   19,  261,  156,   45,   46,
- /*   810 */    47,   48,   49,   50,   51,   52,   53,   54,   55,   56,
- /*   820 */    57,  101,  102,  103,  104,  105,  106,  107,  108,  109,
- /*   830 */   110,  111,   46,  233,  189,  189,  291,  248,   99,  189,
- /*   840 */   125,  126,  127,  115,   26,  200,  289,  230,  231,  115,
- /*   850 */   200,   16,  189,  114,  115,  189,  211,  212,  119,  221,
- /*   860 */   189,  211,  212,  258,  101,  102,  103,  104,  105,  106,
- /*   870 */   107,  108,  109,  110,  111,  189,  156,  211,  212,  234,
- /*   880 */   235,  189,  211,  212,  234,  235,   22,  201,  189,  150,
- /*   890 */   151,  152,  247,  248,   76,   16,   19,  247,  248,  113,
- /*   900 */   189,   24,  257,  211,  212,  189,   26,   89,  262,  223,
- /*   910 */    92,  225,   77,  189,   79,  129,   19,   53,  226,  248,
- /*   920 */    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,
- /*   930 */    53,   54,   55,   56,   57,  236,   19,  271,  189,   99,
- /*   940 */    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,
- /*   950 */    53,   54,   55,   56,   57,  115,   77,   59,   79,  119,
- /*   960 */    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,
- /*   970 */    53,   54,   55,   56,   57,  259,   22,   23,  101,  102,
- /*   980 */   103,  104,  105,  106,  107,  108,  109,  110,  111,   59,
- /*   990 */   150,  151,  152,  158,   22,  244,   24,  246,  101,  102,
- /*  1000 */   103,  104,  105,  106,  107,  108,  109,  110,  111,  285,
- /*  1010 */   189,  189,  114,  115,  116,  200,  136,  137,  101,  102,
- /*  1020 */   103,  104,  105,  106,  107,  108,  109,  110,  111,  230,
- /*  1030 */   231,   59,  211,  212,  285,  105,  106,  189,   19,  141,
- /*  1040 */   234,  235,  239,  113,  114,  115,  116,  226,  118,  234,
- /*  1050 */   235,  189,  249,  247,  100,  189,  126,   23,  236,  107,
- /*  1060 */    26,  189,  247,   44,   45,   46,   47,   48,   49,   50,
- /*  1070 */    51,   52,   53,   54,   55,   56,   57,  211,  212,   59,
- /*  1080 */   150,  233,  152,  211,  212,  133,   12,  115,  189,  189,
- /*  1090 */   138,   19,   20,  300,   22,  233,   76,  304,  226,   11,
- /*  1100 */   208,   27,   22,   23,  200,   19,   26,   87,   36,   89,
- /*  1110 */   211,  212,   92,  300,  248,  189,   42,  304,  189,  250,
- /*  1120 */   101,  102,  103,  104,  105,  106,  107,  108,  109,  110,
- /*  1130 */   111,   59,  200,  233,  114,  115,  116,   63,  234,  235,
- /*  1140 */   235,   19,   20,   71,   22,  300,  189,   73,  200,  304,
- /*  1150 */   116,  247,  247,   81,   23,  200,  227,   26,   36,  234,
- /*  1160 */   235,  203,  204,  143,  200,   26,  234,  235,  194,  200,
- /*  1170 */    48,   99,  247,   66,  189,  141,  284,  105,  106,  247,
- /*  1180 */   100,   59,  234,  235,  112,  259,  114,  115,  116,  234,
- /*  1190 */   235,  119,   85,   71,  266,  247,  211,  212,  234,  235,
- /*  1200 */   114,   94,  247,  234,  235,   12,  266,   85,  136,  137,
- /*  1210 */   189,  247,   90,   26,  126,  127,  247,  189,   26,   22,
- /*  1220 */    27,   99,  150,  151,  152,  153,  154,  105,  106,  189,
- /*  1230 */   302,  303,  211,  212,  112,   42,  114,  115,  116,  211,
- /*  1240 */   212,  119,  302,  303,   19,   20,  189,   22,  274,  189,
- /*  1250 */    15,  144,  278,  189,   22,   23,   63,  189,  189,  203,
- /*  1260 */   204,   36,  136,  137,  155,   24,  157,  143,  211,  212,
- /*  1270 */   189,   26,  150,  151,  152,  153,  154,    0,    1,    2,
- /*  1280 */   211,  212,    5,   46,   59,  161,  147,   10,   11,   12,
- /*  1290 */    13,   14,  211,  212,   17,   60,   71,  189,  258,  189,
- /*  1300 */    59,   59,  105,  106,  189,  189,  189,   30,  116,   32,
- /*  1310 */    85,  124,  189,  251,  252,   90,  189,   40,  258,  211,
- /*  1320 */   212,  211,  212,  189,   99,   26,  211,  212,  211,  212,
- /*  1330 */   105,  106,  100,  141,  211,  212,  189,  112,  189,  114,
- /*  1340 */   115,  116,   24,  189,  119,   31,   23,   70,  189,   26,
- /*  1350 */   113,   19,   20,   39,   22,   78,  115,  115,   81,  189,
- /*  1360 */   211,  212,   22,  189,   24,  211,  212,  189,   36,  189,
- /*  1370 */   211,  212,  189,  189,   97,  150,  151,  152,  153,  154,
- /*  1380 */   127,  211,  212,  189,  189,  211,  212,  189,  143,  211,
- /*  1390 */   212,   59,  189,  189,  211,  212,   23,  189,  189,   26,
- /*  1400 */    59,  189,  149,   71,   22,  211,  212,  189,  131,  211,
- /*  1410 */   212,  189,   59,  136,  137,  211,  212,   85,  189,  211,
- /*  1420 */   212,  253,   90,  211,  212,  292,  293,  118,  119,  211,
- /*  1430 */   212,   99,   23,  211,  212,   26,  159,  105,  106,  140,
- /*  1440 */   211,  212,   23,  189,  112,   26,  114,  115,  116,    1,
- /*  1450 */     2,  119,  189,    5,    7,    8,  115,  139,   10,   11,
- /*  1460 */    12,   13,   14,   23,  189,   17,   26,  189,  115,  189,
- /*  1470 */    19,   20,  189,   22,  189,   83,   84,  189,   30,  150,
- /*  1480 */    32,  152,  150,  151,  152,  153,  154,   36,   40,  211,
- /*  1490 */   212,  211,  212,  189,  211,  212,  211,  212,  309,  189,
- /*  1500 */    19,   20,  189,   22,  150,  189,  152,  231,  189,  189,
- /*  1510 */    59,  189,   23,  189,  189,   26,  189,   36,   70,  189,
- /*  1520 */    23,  139,   71,   26,  211,  212,   78,  211,  212,   81,
- /*  1530 */   281,  211,  212,  211,  212,  189,  211,  212,  211,  212,
- /*  1540 */    59,  211,  212,   23,   23,   97,   26,   26,   23,  189,
- /*  1550 */    99,   26,   71,  189,  119,  189,  105,  106,  107,  189,
- /*  1560 */   189,  189,  280,  112,  129,  114,  115,  116,  189,  189,
- /*  1570 */   119,   23,   19,   20,   26,   22,  189,  211,  212,  131,
- /*  1580 */    99,  237,  211,  212,  136,  137,  105,  106,  189,   36,
- /*  1590 */   211,  212,  189,  112,  189,  114,  115,  116,  211,  212,
- /*  1600 */   119,  150,  151,  152,  153,  154,  189,  159,   23,  189,
- /*  1610 */    23,   26,   59,   26,  189,  189,  189,  189,  189,  189,
- /*  1620 */   209,  189,  238,  187,   71,  250,  250,  250,  211,  212,
- /*  1630 */   241,  150,  151,  152,  153,  154,  211,  212,  250,  290,
- /*  1640 */   254,  211,  212,  211,  212,  254,  215,  286,  241,  241,
- /*  1650 */   254,  286,   99,  214,  220,  214,  214,  224,  105,  106,
- /*  1660 */   244,  240,  244,  273,  192,  112,   60,  114,  115,  116,
- /*  1670 */   139,  290,  119,    5,  196,  238,  196,   38,   10,   11,
- /*  1680 */    12,   13,   14,  196,  287,   17,  148,  287,  276,  113,
- /*  1690 */    43,   22,  229,  147,  241,   18,  232,  232,   30,  232,
- /*  1700 */    32,  232,  264,  150,  151,  152,  153,  154,   40,  265,
- /*  1710 */   196,   18,  195,  264,  241,  241,  241,  265,  196,  229,
- /*  1720 */   229,  195,  155,   62,  196,  195,  283,  282,   22,  216,
- /*  1730 */   196,  195,  216,  196,  195,  113,  213,  213,   70,   64,
- /*  1740 */   213,  222,   22,  124,  162,  111,   78,  142,  219,   81,
- /*  1750 */   215,  219,  275,  303,  213,  213,  216,  275,  213,  216,
- /*  1760 */   213,  256,  113,  255,  255,   97,  222,  216,  256,  196,
- /*  1770 */    91,  256,   82,  255,  308,  146,  308,   22,  143,  196,
- /*  1780 */   270,  155,  145,  272,  144,   25,   13,  199,   26,  256,
- /*  1790 */   198,  190,  190,    6,  296,  188,  188,  188,  244,  131,
- /*  1800 */   245,  245,  243,  242,  136,  137,  241,  255,  208,  260,
- /*  1810 */   260,  208,  202,  217,  217,  202,    4,    3,  202,  208,
- /*  1820 */   208,   22,  160,  209,  209,  208,   15,  159,   98,   16,
- /*  1830 */    23,   23,  137,  148,   24,  128,  140,   20,   16,  142,
- /*  1840 */     1,  140,  128,  149,   61,   53,   37,  148,   53,   53,
- /*  1850 */    53,  293,  128,  296,  114,   34,  139,    1,    5,   22,
- /*  1860 */   113,  158,   68,   75,   26,   41,   68,  139,   24,  113,
- /*  1870 */    20,   19,  129,  123,   23,   96,   22,   22,   59,   22,
- /*  1880 */    22,  147,   67,   67,   24,   22,   37,   28,   23,   22,
- /*  1890 */    67,   23,   23,   23,  114,   23,   22,   26,   22,   24,
- /*  1900 */    23,   22,   24,  139,   23,   23,  141,   34,   88,   26,
- /*  1910 */    75,   86,   23,   22,   34,   75,   24,   23,   34,   34,
- /*  1920 */    34,   93,   34,   26,   26,   23,   23,   34,   23,   23,
- /*  1930 */    26,   44,   23,   22,   11,   22,   22,  133,   23,   23,
- /*  1940 */    22,   22,  139,   26,  139,  139,   15,   23,    1,    1,
- /*  1950 */   310,  310,  310,  310,  310,  310,  310,  139,  310,  310,
- /*  1960 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  1970 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  1980 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  1990 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2000 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2010 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2020 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2030 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2040 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2050 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2060 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2070 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2080 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2090 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2100 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2110 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2120 */   310,  310,  310,  310,  310,  310,  310,  310,  310,  310,
- /*  2130 */   310,  310,  310,  310,  310,  310,  310,  310,  310,
-};
-#define YY_SHIFT_COUNT    (550)
-#define YY_SHIFT_MIN      (0)
-#define YY_SHIFT_MAX      (1948)
-static const unsigned short int yy_shift_ofst[] = {
- /*     0 */  1448, 1277, 1668, 1072, 1072,  340, 1122, 1225, 1332, 1481,
- /*    10 */  1481, 1481,  335,    0,    0,  180,  897, 1481, 1481, 1481,
- /*    20 */  1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481,
- /*    30 */   930,  930, 1020, 1020,  290,    1,  340,  340,  340,  340,
- /*    40 */   340,  340,   40,  110,  219,  288,  327,  396,  435,  504,
- /*    50 */   543,  612,  651,  720,  877,  897,  897,  897,  897,  897,
- /*    60 */   897,  897,  897,  897,  897,  897,  897,  897,  897,  897,
- /*    70 */   897,  897,  897,  917,  897, 1019,  763,  763, 1451, 1481,
- /*    80 */  1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481,
- /*    90 */  1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481,
- /*   100 */  1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481, 1481,
- /*   110 */  1481, 1481, 1553, 1481, 1481, 1481, 1481, 1481, 1481, 1481,
- /*   120 */  1481, 1481, 1481, 1481, 1481, 1481,  147,  258,  258,  258,
- /*   130 */   258,  258,   79,   65,   84,  449,   19,  786,  449,  636,
- /*   140 */   636,  449,  880,  880,  880,  880,  113,  142,  142,  472,
- /*   150 */   150, 1958, 1958,  399,  399,  399,   93,  237,  341,  237,
- /*   160 */   237, 1074, 1074,  437,  350,  704, 1080,  449,  449,  449,
- /*   170 */   449,  449,  449,  449,  449,  449,  449,  449,  449,  449,
- /*   180 */   449,  449,  449,  449,  449,  449,  449,  449,  818,  818,
- /*   190 */   449, 1088,  217,  217,  734,  734, 1124, 1126, 1958, 1958,
- /*   200 */  1958,  739,  840,  840,  453,  454,  511,  187,  563,  570,
- /*   210 */   898,  669,  449,  449,  449,  449,  449,  449,  449,  449,
- /*   220 */   449,  670,  449,  449,  449,  449,  449,  449,  449,  449,
- /*   230 */   449,  449,  449,  449,  674,  674,  674,  449,  449,  449,
- /*   240 */   449, 1034,  449,  449,  449,  972, 1107,  449,  449, 1193,
- /*   250 */   449,  449,  449,  449,  449,  449,  449,  449,  260,  177,
- /*   260 */   489, 1241, 1241, 1241, 1241, 1192,  489,  489,  952, 1197,
- /*   270 */   625, 1235, 1139,  181,  181, 1086, 1139, 1139, 1086, 1187,
- /*   280 */  1131, 1237, 1314, 1314, 1314,  181, 1245, 1245, 1109, 1299,
- /*   290 */   549, 1340, 1606, 1531, 1531, 1639, 1639, 1531, 1538, 1576,
- /*   300 */  1669, 1647, 1546, 1677, 1677, 1677, 1677, 1531, 1693, 1546,
- /*   310 */  1546, 1576, 1669, 1647, 1647, 1546, 1531, 1693, 1567, 1661,
- /*   320 */  1531, 1693, 1706, 1531, 1693, 1531, 1693, 1706, 1622, 1622,
- /*   330 */  1622, 1675, 1720, 1720, 1706, 1622, 1619, 1622, 1675, 1622,
- /*   340 */  1622, 1582, 1706, 1634, 1634, 1706, 1605, 1649, 1605, 1649,
- /*   350 */  1605, 1649, 1605, 1649, 1531, 1679, 1679, 1690, 1690, 1629,
- /*   360 */  1635, 1755, 1531, 1626, 1629, 1637, 1640, 1546, 1760, 1762,
- /*   370 */  1773, 1773, 1787, 1787, 1787, 1958, 1958, 1958, 1958, 1958,
- /*   380 */  1958, 1958, 1958, 1958, 1958, 1958, 1958, 1958, 1958, 1958,
- /*   390 */   308,  835,  954, 1232,  879,  715,  728, 1323,  864, 1318,
- /*   400 */  1253, 1373,  297, 1409, 1419, 1440, 1489, 1497, 1520, 1242,
- /*   410 */  1309, 1447, 1435, 1341, 1521, 1525, 1392, 1548, 1329, 1354,
- /*   420 */  1585, 1587, 1353, 1382, 1812, 1814, 1799, 1662, 1811, 1730,
- /*   430 */  1813, 1807, 1808, 1695, 1685, 1707, 1810, 1696, 1817, 1697,
- /*   440 */  1822, 1839, 1701, 1694, 1714, 1783, 1809, 1699, 1792, 1795,
- /*   450 */  1796, 1797, 1724, 1740, 1821, 1717, 1856, 1853, 1837, 1747,
- /*   460 */  1703, 1794, 1838, 1798, 1788, 1824, 1728, 1756, 1844, 1850,
- /*   470 */  1852, 1743, 1750, 1854, 1815, 1855, 1857, 1851, 1858, 1816,
- /*   480 */  1819, 1860, 1779, 1859, 1863, 1823, 1849, 1865, 1734, 1867,
- /*   490 */  1868, 1869, 1870, 1871, 1872, 1874, 1875, 1877, 1876, 1878,
- /*   500 */  1764, 1881, 1882, 1780, 1873, 1879, 1765, 1883, 1880, 1884,
- /*   510 */  1885, 1886, 1820, 1835, 1825, 1887, 1840, 1828, 1888, 1889,
- /*   520 */  1891, 1892, 1897, 1898, 1893, 1894, 1883, 1902, 1903, 1905,
- /*   530 */  1906, 1904, 1909, 1911, 1923, 1913, 1914, 1915, 1916, 1918,
- /*   540 */  1919, 1917, 1804, 1803, 1805, 1806, 1818, 1924, 1931, 1947,
- /*   550 */  1948,
-};
-#define YY_REDUCE_COUNT (389)
-#define YY_REDUCE_MIN   (-262)
-#define YY_REDUCE_MAX   (1617)
-static const short yy_reduce_ofst[] = {
- /*     0 */   490, -122,  545,  645,  650, -120, -189, -187, -184, -182,
- /*    10 */  -178, -176,   45,   30,  200, -251, -134,  390,  392,  521,
- /*    20 */   523,  213,  692,  821,  284,  589,  872,  666,  671,  866,
- /*    30 */    71,  111,  273,  389,  686,  815,  904,  932,  948,  955,
- /*    40 */   964,  969, -259, -259, -259, -259, -259, -259, -259, -259,
- /*    50 */  -259, -259, -259, -259, -259, -259, -259, -259, -259, -259,
- /*    60 */  -259, -259, -259, -259, -259, -259, -259, -259, -259, -259,
- /*    70 */  -259, -259, -259, -259, -259, -259, -259, -259,  428,  430,
- /*    80 */   899,  985, 1021, 1028, 1057, 1069, 1081, 1108, 1110, 1115,
- /*    90 */  1117, 1123, 1149, 1154, 1159, 1170, 1174, 1178, 1183, 1194,
- /*   100 */  1198, 1204, 1208, 1212, 1218, 1222, 1229, 1278, 1280, 1283,
- /*   110 */  1285, 1313, 1316, 1320, 1322, 1325, 1327, 1330, 1366, 1371,
- /*   120 */  1379, 1387, 1417, 1425, 1430, 1432, -259, -259, -259, -259,
- /*   130 */  -259, -259, -259, -259, -259,  557,  974, -214, -174,   -9,
- /*   140 */   431, -124,  806,  925,  806,  925,  251,  928,  940, -259,
- /*   150 */  -259, -259, -259, -198, -198, -198,  127, -186, -168,  212,
- /*   160 */   646,  617,  799, -262,  555,  220,  220,  491,  605, 1040,
- /*   170 */  1060,  699,  -11,  600,  848,  862,  345, -129,  724,  -91,
- /*   180 */   158,  749,  716,  900,  304,  822,  929,  926,  499,  793,
- /*   190 */   322,  892,  813,  845,  958, 1056,  751,  905, 1133, 1062,
- /*   200 */   803, -210, -185, -179, -148, -167,  -89,  121,  274,  281,
- /*   210 */   320,  336,  439,  663,  711,  957, 1064, 1068, 1116, 1127,
- /*   220 */  1134, -196, 1147, 1180, 1184, 1195, 1203, 1209, 1254, 1263,
- /*   230 */  1275, 1288, 1304, 1310,  205,  422,  638, 1319, 1324, 1346,
- /*   240 */  1360, 1168, 1364, 1370, 1372,  869, 1189, 1380, 1399, 1276,
- /*   250 */  1403,  121, 1405, 1420, 1426, 1427, 1428, 1429, 1249, 1282,
- /*   260 */  1344, 1375, 1376, 1377, 1388, 1168, 1344, 1344, 1384, 1411,
- /*   270 */  1436, 1349, 1389, 1386, 1391, 1361, 1407, 1408, 1365, 1431,
- /*   280 */  1433, 1434, 1439, 1441, 1442, 1396, 1416, 1418, 1390, 1421,
- /*   290 */  1437, 1472, 1381, 1478, 1480, 1397, 1400, 1487, 1412, 1444,
- /*   300 */  1438, 1463, 1453, 1464, 1465, 1467, 1469, 1514, 1517, 1473,
- /*   310 */  1474, 1452, 1449, 1490, 1491, 1475, 1522, 1526, 1443, 1445,
- /*   320 */  1528, 1530, 1513, 1534, 1536, 1537, 1539, 1516, 1523, 1524,
- /*   330 */  1527, 1519, 1529, 1532, 1540, 1541, 1535, 1542, 1544, 1545,
- /*   340 */  1547, 1450, 1543, 1477, 1482, 1551, 1505, 1508, 1512, 1509,
- /*   350 */  1515, 1518, 1533, 1552, 1573, 1466, 1468, 1549, 1550, 1555,
- /*   360 */  1554, 1510, 1583, 1511, 1556, 1559, 1561, 1565, 1588, 1592,
- /*   370 */  1601, 1602, 1607, 1608, 1609, 1498, 1557, 1558, 1610, 1600,
- /*   380 */  1603, 1611, 1612, 1613, 1596, 1597, 1614, 1615, 1617, 1616,
-};
-static const YYACTIONTYPE yy_default[] = {
- /*     0 */  1573, 1573, 1573, 1409, 1186, 1295, 1186, 1186, 1186, 1409,
- /*    10 */  1409, 1409, 1186, 1325, 1325, 1462, 1217, 1186, 1186, 1186,
- /*    20 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1408, 1186, 1186,
- /*    30 */  1186, 1186, 1492, 1492, 1186, 1186, 1186, 1186, 1186, 1186,
- /*    40 */  1186, 1186, 1186, 1334, 1186, 1186, 1186, 1186, 1186, 1186,
- /*    50 */  1410, 1411, 1186, 1186, 1186, 1461, 1463, 1426, 1344, 1343,
- /*    60 */  1342, 1341, 1444, 1312, 1339, 1332, 1336, 1404, 1405, 1403,
- /*    70 */  1407, 1411, 1410, 1186, 1335, 1375, 1389, 1374, 1186, 1186,
- /*    80 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*    90 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   100 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   110 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   120 */  1186, 1186, 1186, 1186, 1186, 1186, 1383, 1388, 1394, 1387,
- /*   130 */  1384, 1377, 1376, 1378, 1379, 1186, 1207, 1259, 1186, 1186,
- /*   140 */  1186, 1186, 1480, 1479, 1186, 1186, 1217, 1369, 1368, 1380,
- /*   150 */  1381, 1391, 1390, 1469, 1527, 1526, 1427, 1186, 1186, 1186,
- /*   160 */  1186, 1186, 1186, 1492, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   170 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   180 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1492, 1492,
- /*   190 */  1186, 1217, 1492, 1492, 1213, 1213, 1319, 1186, 1475, 1295,
- /*   200 */  1286, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   210 */  1186, 1186, 1186, 1186, 1186, 1466, 1464, 1186, 1186, 1186,
- /*   220 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   230 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   240 */  1186, 1186, 1186, 1186, 1186, 1291, 1186, 1186, 1186, 1186,
- /*   250 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1521, 1186, 1439,
- /*   260 */  1273, 1291, 1291, 1291, 1291, 1293, 1274, 1272, 1285, 1218,
- /*   270 */  1193, 1565, 1338, 1314, 1314, 1562, 1338, 1338, 1562, 1234,
- /*   280 */  1543, 1229, 1325, 1325, 1325, 1314, 1319, 1319, 1406, 1292,
- /*   290 */  1285, 1186, 1565, 1300, 1300, 1564, 1564, 1300, 1427, 1347,
- /*   300 */  1353, 1262, 1338, 1268, 1268, 1268, 1268, 1300, 1204, 1338,
- /*   310 */  1338, 1347, 1353, 1262, 1262, 1338, 1300, 1204, 1443, 1559,
- /*   320 */  1300, 1204, 1417, 1300, 1204, 1300, 1204, 1417, 1260, 1260,
- /*   330 */  1260, 1249, 1186, 1186, 1417, 1260, 1234, 1260, 1249, 1260,
- /*   340 */  1260, 1510, 1417, 1421, 1421, 1417, 1318, 1313, 1318, 1313,
- /*   350 */  1318, 1313, 1318, 1313, 1300, 1502, 1502, 1328, 1328, 1333,
- /*   360 */  1319, 1412, 1300, 1186, 1333, 1331, 1329, 1338, 1210, 1252,
- /*   370 */  1524, 1524, 1520, 1520, 1520, 1570, 1570, 1475, 1536, 1217,
- /*   380 */  1217, 1217, 1217, 1536, 1236, 1236, 1218, 1218, 1217, 1536,
- /*   390 */  1186, 1186, 1186, 1186, 1186, 1186, 1531, 1186, 1428, 1304,
- /*   400 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   410 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   420 */  1186, 1186, 1186, 1358, 1186, 1189, 1472, 1186, 1186, 1470,
- /*   430 */  1186, 1186, 1186, 1186, 1186, 1186, 1305, 1186, 1186, 1186,
- /*   440 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   450 */  1186, 1186, 1186, 1186, 1186, 1561, 1186, 1186, 1186, 1186,
- /*   460 */  1186, 1186, 1442, 1441, 1186, 1186, 1302, 1186, 1186, 1186,
- /*   470 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   480 */  1232, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   490 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   500 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1330, 1186, 1186,
- /*   510 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   520 */  1186, 1186, 1507, 1320, 1186, 1186, 1552, 1186, 1186, 1186,
- /*   530 */  1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186, 1186,
- /*   540 */  1186, 1547, 1276, 1360, 1186, 1359, 1363, 1186, 1198, 1186,
- /*   550 */  1186,
-};
-/********** End of lemon-generated parsing tables *****************************/
-
-/* The next table maps tokens (terminal symbols) into fallback tokens.  
-** If a construct like the following:
-** 
-**      %fallback ID X Y Z.
-**
-** appears in the grammar, then ID becomes a fallback token for X, Y,
-** and Z.  Whenever one of the tokens X, Y, or Z is input to the parser
-** but it does not parse, the type of the token is changed to ID and
-** the parse is retried before an error is thrown.
-**
-** This feature can be used, for example, to cause some keywords in a language
-** to revert to identifiers if they keyword does not apply in the context where
-** it appears.
-*/
-#ifdef YYFALLBACK
-static const YYCODETYPE yyFallback[] = {
-    0,  /*          $ => nothing */
-    0,  /*       SEMI => nothing */
-   59,  /*    EXPLAIN => ID */
-   59,  /*      QUERY => ID */
-   59,  /*       PLAN => ID */
-   59,  /*      BEGIN => ID */
-    0,  /* TRANSACTION => nothing */
-   59,  /*   DEFERRED => ID */
-   59,  /*  IMMEDIATE => ID */
-   59,  /*  EXCLUSIVE => ID */
-    0,  /*     COMMIT => nothing */
-   59,  /*        END => ID */
-   59,  /*   ROLLBACK => ID */
-   59,  /*  SAVEPOINT => ID */
-   59,  /*    RELEASE => ID */
-    0,  /*         TO => nothing */
-    0,  /*      TABLE => nothing */
-    0,  /*     CREATE => nothing */
-   59,  /*         IF => ID */
-    0,  /*        NOT => nothing */
-    0,  /*     EXISTS => nothing */
-   59,  /*       TEMP => ID */
-    0,  /*         LP => nothing */
-    0,  /*         RP => nothing */
-    0,  /*         AS => nothing */
-   59,  /*    WITHOUT => ID */
-    0,  /*      COMMA => nothing */
-   59,  /*      ABORT => ID */
-   59,  /*     ACTION => ID */
-   59,  /*      AFTER => ID */
-   59,  /*    ANALYZE => ID */
-   59,  /*        ASC => ID */
-   59,  /*     ATTACH => ID */
-   59,  /*     BEFORE => ID */
-   59,  /*         BY => ID */
-   59,  /*    CASCADE => ID */
-   59,  /*       CAST => ID */
-   59,  /*   CONFLICT => ID */
-   59,  /*   DATABASE => ID */
-   59,  /*       DESC => ID */
-   59,  /*     DETACH => ID */
-   59,  /*       EACH => ID */
-   59,  /*       FAIL => ID */
-    0,  /*         OR => nothing */
-    0,  /*        AND => nothing */
-    0,  /*         IS => nothing */
-   59,  /*      MATCH => ID */
-   59,  /*    LIKE_KW => ID */
-    0,  /*    BETWEEN => nothing */
-    0,  /*         IN => nothing */
-    0,  /*     ISNULL => nothing */
-    0,  /*    NOTNULL => nothing */
-    0,  /*         NE => nothing */
-    0,  /*         EQ => nothing */
-    0,  /*         GT => nothing */
-    0,  /*         LE => nothing */
-    0,  /*         LT => nothing */
-    0,  /*         GE => nothing */
-    0,  /*     ESCAPE => nothing */
-    0,  /*         ID => nothing */
-   59,  /*   COLUMNKW => ID */
-   59,  /*         DO => ID */
-   59,  /*        FOR => ID */
-   59,  /*     IGNORE => ID */
-   59,  /*  INITIALLY => ID */
-   59,  /*    INSTEAD => ID */
-   59,  /*         NO => ID */
-   59,  /*        KEY => ID */
-   59,  /*         OF => ID */
-   59,  /*     OFFSET => ID */
-   59,  /*     PRAGMA => ID */
-   59,  /*      RAISE => ID */
-   59,  /*  RECURSIVE => ID */
-   59,  /*    REPLACE => ID */
-   59,  /*   RESTRICT => ID */
-   59,  /*        ROW => ID */
-   59,  /*       ROWS => ID */
-   59,  /*    TRIGGER => ID */
-   59,  /*     VACUUM => ID */
-   59,  /*       VIEW => ID */
-   59,  /*    VIRTUAL => ID */
-   59,  /*       WITH => ID */
-   59,  /*      NULLS => ID */
-   59,  /*      FIRST => ID */
-   59,  /*       LAST => ID */
-   59,  /*    CURRENT => ID */
-   59,  /*  FOLLOWING => ID */
-   59,  /*  PARTITION => ID */
-   59,  /*  PRECEDING => ID */
-   59,  /*      RANGE => ID */
-   59,  /*  UNBOUNDED => ID */
-   59,  /*    EXCLUDE => ID */
-   59,  /*     GROUPS => ID */
-   59,  /*     OTHERS => ID */
-   59,  /*       TIES => ID */
-   59,  /*  GENERATED => ID */
-   59,  /*     ALWAYS => ID */
-   59,  /*    REINDEX => ID */
-   59,  /*     RENAME => ID */
-   59,  /*   CTIME_KW => ID */
-    0,  /*        ANY => nothing */
-    0,  /*     BITAND => nothing */
-    0,  /*      BITOR => nothing */
-    0,  /*     LSHIFT => nothing */
-    0,  /*     RSHIFT => nothing */
-    0,  /*       PLUS => nothing */
-    0,  /*      MINUS => nothing */
-    0,  /*       STAR => nothing */
-    0,  /*      SLASH => nothing */
-    0,  /*        REM => nothing */
-    0,  /*     CONCAT => nothing */
-    0,  /*    COLLATE => nothing */
-    0,  /*     BITNOT => nothing */
-    0,  /*         ON => nothing */
-    0,  /*    INDEXED => nothing */
-    0,  /*     STRING => nothing */
-    0,  /*    JOIN_KW => nothing */
-    0,  /* CONSTRAINT => nothing */
-    0,  /*    DEFAULT => nothing */
-    0,  /*       NULL => nothing */
-    0,  /*    PRIMARY => nothing */
-    0,  /*     UNIQUE => nothing */
-    0,  /*      CHECK => nothing */
-    0,  /* REFERENCES => nothing */
-    0,  /*   AUTOINCR => nothing */
-    0,  /*     INSERT => nothing */
-    0,  /*     DELETE => nothing */
-    0,  /*     UPDATE => nothing */
-    0,  /*        SET => nothing */
-    0,  /* DEFERRABLE => nothing */
-    0,  /*    FOREIGN => nothing */
-    0,  /*       DROP => nothing */
-    0,  /*      UNION => nothing */
-    0,  /*        ALL => nothing */
-    0,  /*     EXCEPT => nothing */
-    0,  /*  INTERSECT => nothing */
-    0,  /*     SELECT => nothing */
-    0,  /*     VALUES => nothing */
-    0,  /*   DISTINCT => nothing */
-    0,  /*        DOT => nothing */
-    0,  /*       FROM => nothing */
-    0,  /*       JOIN => nothing */
-    0,  /*      USING => nothing */
-    0,  /*      ORDER => nothing */
-    0,  /*      GROUP => nothing */
-    0,  /*     HAVING => nothing */
-    0,  /*      LIMIT => nothing */
-    0,  /*      WHERE => nothing */
-    0,  /*       INTO => nothing */
-    0,  /*    NOTHING => nothing */
-    0,  /*      FLOAT => nothing */
-    0,  /*       BLOB => nothing */
-    0,  /*    INTEGER => nothing */
-    0,  /*   VARIABLE => nothing */
-    0,  /*       CASE => nothing */
-    0,  /*       WHEN => nothing */
-    0,  /*       THEN => nothing */
-    0,  /*       ELSE => nothing */
-    0,  /*      INDEX => nothing */
-    0,  /*      ALTER => nothing */
-    0,  /*        ADD => nothing */
-    0,  /*     WINDOW => nothing */
-    0,  /*       OVER => nothing */
-    0,  /*     FILTER => nothing */
-    0,  /*     COLUMN => nothing */
-    0,  /* AGG_FUNCTION => nothing */
-    0,  /* AGG_COLUMN => nothing */
-    0,  /*  TRUEFALSE => nothing */
-    0,  /*      ISNOT => nothing */
-    0,  /*   FUNCTION => nothing */
-    0,  /*     UMINUS => nothing */
-    0,  /*      UPLUS => nothing */
-    0,  /*      TRUTH => nothing */
-    0,  /*   REGISTER => nothing */
-    0,  /*     VECTOR => nothing */
-    0,  /* SELECT_COLUMN => nothing */
-    0,  /* IF_NULL_ROW => nothing */
-    0,  /*   ASTERISK => nothing */
-    0,  /*       SPAN => nothing */
-    0,  /*      SPACE => nothing */
-    0,  /*    ILLEGAL => nothing */
-};
-#endif /* YYFALLBACK */
-
-/* The following structure represents a single element of the
-** parser's stack.  Information stored includes:
-**
-**   +  The state number for the parser at this level of the stack.
-**
-**   +  The value of the token stored at this level of the stack.
-**      (In other words, the "major" token.)
-**
-**   +  The semantic value stored at this level of the stack.  This is
-**      the information used by the action routines in the grammar.
-**      It is sometimes called the "minor" token.
-**
-** After the "shift" half of a SHIFTREDUCE action, the stateno field
-** actually contains the reduce action for the second half of the
-** SHIFTREDUCE.
-*/
-struct yyStackEntry {
-  YYACTIONTYPE stateno;  /* The state-number, or reduce action in SHIFTREDUCE */
-  YYCODETYPE major;      /* The major token value.  This is the code
-                         ** number for the token at this stack level */
-  YYMINORTYPE minor;     /* The user-supplied minor token value.  This
-                         ** is the value of the token  */
-};
-typedef struct yyStackEntry yyStackEntry;
-
-/* The state of the parser is completely contained in an instance of
-** the following structure */
-struct yyParser {
-  yyStackEntry *yytos;          /* Pointer to top element of the stack */
-#ifdef YYTRACKMAXSTACKDEPTH
-  int yyhwm;                    /* High-water mark of the stack */
-#endif
-#ifndef YYNOERRORRECOVERY
-  int yyerrcnt;                 /* Shifts left before out of the error */
-#endif
-  tdsqlite3ParserARG_SDECL                /* A place to hold %extra_argument */
-  tdsqlite3ParserCTX_SDECL                /* A place to hold %extra_context */
-#if YYSTACKDEPTH<=0
-  int yystksz;                  /* Current side of the stack */
-  yyStackEntry *yystack;        /* The parser's stack */
-  yyStackEntry yystk0;          /* First stack entry */
-#else
-  yyStackEntry yystack[YYSTACKDEPTH];  /* The parser's stack */
-  yyStackEntry *yystackEnd;            /* Last entry in the stack */
-#endif
-};
-typedef struct yyParser yyParser;
-
-#ifndef NDEBUG
-/* #include <stdio.h> */
-static FILE *yyTraceFILE = 0;
-static char *yyTracePrompt = 0;
-#endif /* NDEBUG */
-
-#ifndef NDEBUG
-/* 
-** Turn parser tracing on by giving a stream to which to write the trace
-** and a prompt to preface each trace message.  Tracing is turned off
-** by making either argument NULL 
-**
-** Inputs:
-** <ul>
-** <li> A FILE* to which trace output should be written.
-**      If NULL, then tracing is turned off.
-** <li> A prefix string written at the beginning of every
-**      line of trace output.  If NULL, then tracing is
-**      turned off.
-** </ul>
-**
-** Outputs:
-** None.
-*/
-SQLITE_PRIVATE void tdsqlite3ParserTrace(FILE *TraceFILE, char *zTracePrompt){
-  yyTraceFILE = TraceFILE;
-  yyTracePrompt = zTracePrompt;
-  if( yyTraceFILE==0 ) yyTracePrompt = 0;
-  else if( yyTracePrompt==0 ) yyTraceFILE = 0;
-}
-#endif /* NDEBUG */
-
-#if defined(YYCOVERAGE) || !defined(NDEBUG)
-/* For tracing shifts, the names of all terminals and nonterminals
-** are required.  The following table supplies these names */
-static const char *const yyTokenName[] = { 
-  /*    0 */ "$",
-  /*    1 */ "SEMI",
-  /*    2 */ "EXPLAIN",
-  /*    3 */ "QUERY",
-  /*    4 */ "PLAN",
-  /*    5 */ "BEGIN",
-  /*    6 */ "TRANSACTION",
-  /*    7 */ "DEFERRED",
-  /*    8 */ "IMMEDIATE",
-  /*    9 */ "EXCLUSIVE",
-  /*   10 */ "COMMIT",
-  /*   11 */ "END",
-  /*   12 */ "ROLLBACK",
-  /*   13 */ "SAVEPOINT",
-  /*   14 */ "RELEASE",
-  /*   15 */ "TO",
-  /*   16 */ "TABLE",
-  /*   17 */ "CREATE",
-  /*   18 */ "IF",
-  /*   19 */ "NOT",
-  /*   20 */ "EXISTS",
-  /*   21 */ "TEMP",
-  /*   22 */ "LP",
-  /*   23 */ "RP",
-  /*   24 */ "AS",
-  /*   25 */ "WITHOUT",
-  /*   26 */ "COMMA",
-  /*   27 */ "ABORT",
-  /*   28 */ "ACTION",
-  /*   29 */ "AFTER",
-  /*   30 */ "ANALYZE",
-  /*   31 */ "ASC",
-  /*   32 */ "ATTACH",
-  /*   33 */ "BEFORE",
-  /*   34 */ "BY",
-  /*   35 */ "CASCADE",
-  /*   36 */ "CAST",
-  /*   37 */ "CONFLICT",
-  /*   38 */ "DATABASE",
-  /*   39 */ "DESC",
-  /*   40 */ "DETACH",
-  /*   41 */ "EACH",
-  /*   42 */ "FAIL",
-  /*   43 */ "OR",
-  /*   44 */ "AND",
-  /*   45 */ "IS",
-  /*   46 */ "MATCH",
-  /*   47 */ "LIKE_KW",
-  /*   48 */ "BETWEEN",
-  /*   49 */ "IN",
-  /*   50 */ "ISNULL",
-  /*   51 */ "NOTNULL",
-  /*   52 */ "NE",
-  /*   53 */ "EQ",
-  /*   54 */ "GT",
-  /*   55 */ "LE",
-  /*   56 */ "LT",
-  /*   57 */ "GE",
-  /*   58 */ "ESCAPE",
-  /*   59 */ "ID",
-  /*   60 */ "COLUMNKW",
-  /*   61 */ "DO",
-  /*   62 */ "FOR",
-  /*   63 */ "IGNORE",
-  /*   64 */ "INITIALLY",
-  /*   65 */ "INSTEAD",
-  /*   66 */ "NO",
-  /*   67 */ "KEY",
-  /*   68 */ "OF",
-  /*   69 */ "OFFSET",
-  /*   70 */ "PRAGMA",
-  /*   71 */ "RAISE",
-  /*   72 */ "RECURSIVE",
-  /*   73 */ "REPLACE",
-  /*   74 */ "RESTRICT",
-  /*   75 */ "ROW",
-  /*   76 */ "ROWS",
-  /*   77 */ "TRIGGER",
-  /*   78 */ "VACUUM",
-  /*   79 */ "VIEW",
-  /*   80 */ "VIRTUAL",
-  /*   81 */ "WITH",
-  /*   82 */ "NULLS",
-  /*   83 */ "FIRST",
-  /*   84 */ "LAST",
-  /*   85 */ "CURRENT",
-  /*   86 */ "FOLLOWING",
-  /*   87 */ "PARTITION",
-  /*   88 */ "PRECEDING",
-  /*   89 */ "RANGE",
-  /*   90 */ "UNBOUNDED",
-  /*   91 */ "EXCLUDE",
-  /*   92 */ "GROUPS",
-  /*   93 */ "OTHERS",
-  /*   94 */ "TIES",
-  /*   95 */ "GENERATED",
-  /*   96 */ "ALWAYS",
-  /*   97 */ "REINDEX",
-  /*   98 */ "RENAME",
-  /*   99 */ "CTIME_KW",
-  /*  100 */ "ANY",
-  /*  101 */ "BITAND",
-  /*  102 */ "BITOR",
-  /*  103 */ "LSHIFT",
-  /*  104 */ "RSHIFT",
-  /*  105 */ "PLUS",
-  /*  106 */ "MINUS",
-  /*  107 */ "STAR",
-  /*  108 */ "SLASH",
-  /*  109 */ "REM",
-  /*  110 */ "CONCAT",
-  /*  111 */ "COLLATE",
-  /*  112 */ "BITNOT",
-  /*  113 */ "ON",
-  /*  114 */ "INDEXED",
-  /*  115 */ "STRING",
-  /*  116 */ "JOIN_KW",
-  /*  117 */ "CONSTRAINT",
-  /*  118 */ "DEFAULT",
-  /*  119 */ "NULL",
-  /*  120 */ "PRIMARY",
-  /*  121 */ "UNIQUE",
-  /*  122 */ "CHECK",
-  /*  123 */ "REFERENCES",
-  /*  124 */ "AUTOINCR",
-  /*  125 */ "INSERT",
-  /*  126 */ "DELETE",
-  /*  127 */ "UPDATE",
-  /*  128 */ "SET",
-  /*  129 */ "DEFERRABLE",
-  /*  130 */ "FOREIGN",
-  /*  131 */ "DROP",
-  /*  132 */ "UNION",
-  /*  133 */ "ALL",
-  /*  134 */ "EXCEPT",
-  /*  135 */ "INTERSECT",
-  /*  136 */ "SELECT",
-  /*  137 */ "VALUES",
-  /*  138 */ "DISTINCT",
-  /*  139 */ "DOT",
-  /*  140 */ "FROM",
-  /*  141 */ "JOIN",
-  /*  142 */ "USING",
-  /*  143 */ "ORDER",
-  /*  144 */ "GROUP",
-  /*  145 */ "HAVING",
-  /*  146 */ "LIMIT",
-  /*  147 */ "WHERE",
-  /*  148 */ "INTO",
-  /*  149 */ "NOTHING",
-  /*  150 */ "FLOAT",
-  /*  151 */ "BLOB",
-  /*  152 */ "INTEGER",
-  /*  153 */ "VARIABLE",
-  /*  154 */ "CASE",
-  /*  155 */ "WHEN",
-  /*  156 */ "THEN",
-  /*  157 */ "ELSE",
-  /*  158 */ "INDEX",
-  /*  159 */ "ALTER",
-  /*  160 */ "ADD",
-  /*  161 */ "WINDOW",
-  /*  162 */ "OVER",
-  /*  163 */ "FILTER",
-  /*  164 */ "COLUMN",
-  /*  165 */ "AGG_FUNCTION",
-  /*  166 */ "AGG_COLUMN",
-  /*  167 */ "TRUEFALSE",
-  /*  168 */ "ISNOT",
-  /*  169 */ "FUNCTION",
-  /*  170 */ "UMINUS",
-  /*  171 */ "UPLUS",
-  /*  172 */ "TRUTH",
-  /*  173 */ "REGISTER",
-  /*  174 */ "VECTOR",
-  /*  175 */ "SELECT_COLUMN",
-  /*  176 */ "IF_NULL_ROW",
-  /*  177 */ "ASTERISK",
-  /*  178 */ "SPAN",
-  /*  179 */ "SPACE",
-  /*  180 */ "ILLEGAL",
-  /*  181 */ "input",
-  /*  182 */ "cmdlist",
-  /*  183 */ "ecmd",
-  /*  184 */ "cmdx",
-  /*  185 */ "explain",
-  /*  186 */ "cmd",
-  /*  187 */ "transtype",
-  /*  188 */ "trans_opt",
-  /*  189 */ "nm",
-  /*  190 */ "savepoint_opt",
-  /*  191 */ "create_table",
-  /*  192 */ "create_table_args",
-  /*  193 */ "createkw",
-  /*  194 */ "temp",
-  /*  195 */ "ifnotexists",
-  /*  196 */ "dbnm",
-  /*  197 */ "columnlist",
-  /*  198 */ "conslist_opt",
-  /*  199 */ "table_options",
-  /*  200 */ "select",
-  /*  201 */ "columnname",
-  /*  202 */ "carglist",
-  /*  203 */ "typetoken",
-  /*  204 */ "typename",
-  /*  205 */ "signed",
-  /*  206 */ "plus_num",
-  /*  207 */ "minus_num",
-  /*  208 */ "scanpt",
-  /*  209 */ "scantok",
-  /*  210 */ "ccons",
-  /*  211 */ "term",
-  /*  212 */ "expr",
-  /*  213 */ "onconf",
-  /*  214 */ "sortorder",
-  /*  215 */ "autoinc",
-  /*  216 */ "eidlist_opt",
-  /*  217 */ "refargs",
-  /*  218 */ "defer_subclause",
-  /*  219 */ "generated",
-  /*  220 */ "refarg",
-  /*  221 */ "refact",
-  /*  222 */ "init_deferred_pred_opt",
-  /*  223 */ "conslist",
-  /*  224 */ "tconscomma",
-  /*  225 */ "tcons",
-  /*  226 */ "sortlist",
-  /*  227 */ "eidlist",
-  /*  228 */ "defer_subclause_opt",
-  /*  229 */ "orconf",
-  /*  230 */ "resolvetype",
-  /*  231 */ "raisetype",
-  /*  232 */ "ifexists",
-  /*  233 */ "fullname",
-  /*  234 */ "selectnowith",
-  /*  235 */ "oneselect",
-  /*  236 */ "wqlist",
-  /*  237 */ "multiselect_op",
-  /*  238 */ "distinct",
-  /*  239 */ "selcollist",
-  /*  240 */ "from",
-  /*  241 */ "where_opt",
-  /*  242 */ "groupby_opt",
-  /*  243 */ "having_opt",
-  /*  244 */ "orderby_opt",
-  /*  245 */ "limit_opt",
-  /*  246 */ "window_clause",
-  /*  247 */ "values",
-  /*  248 */ "nexprlist",
-  /*  249 */ "sclp",
-  /*  250 */ "as",
-  /*  251 */ "seltablist",
-  /*  252 */ "stl_prefix",
-  /*  253 */ "joinop",
-  /*  254 */ "indexed_opt",
-  /*  255 */ "on_opt",
-  /*  256 */ "using_opt",
-  /*  257 */ "exprlist",
-  /*  258 */ "xfullname",
-  /*  259 */ "idlist",
-  /*  260 */ "nulls",
-  /*  261 */ "with",
-  /*  262 */ "setlist",
-  /*  263 */ "insert_cmd",
-  /*  264 */ "idlist_opt",
-  /*  265 */ "upsert",
-  /*  266 */ "filter_over",
-  /*  267 */ "likeop",
-  /*  268 */ "between_op",
-  /*  269 */ "in_op",
-  /*  270 */ "paren_exprlist",
-  /*  271 */ "case_operand",
-  /*  272 */ "case_exprlist",
-  /*  273 */ "case_else",
-  /*  274 */ "uniqueflag",
-  /*  275 */ "collate",
-  /*  276 */ "vinto",
-  /*  277 */ "nmnum",
-  /*  278 */ "trigger_decl",
-  /*  279 */ "trigger_cmd_list",
-  /*  280 */ "trigger_time",
-  /*  281 */ "trigger_event",
-  /*  282 */ "foreach_clause",
-  /*  283 */ "when_clause",
-  /*  284 */ "trigger_cmd",
-  /*  285 */ "trnm",
-  /*  286 */ "tridxby",
-  /*  287 */ "database_kw_opt",
-  /*  288 */ "key_opt",
-  /*  289 */ "add_column_fullname",
-  /*  290 */ "kwcolumn_opt",
-  /*  291 */ "create_vtab",
-  /*  292 */ "vtabarglist",
-  /*  293 */ "vtabarg",
-  /*  294 */ "vtabargtoken",
-  /*  295 */ "lp",
-  /*  296 */ "anylist",
-  /*  297 */ "windowdefn_list",
-  /*  298 */ "windowdefn",
-  /*  299 */ "window",
-  /*  300 */ "frame_opt",
-  /*  301 */ "part_opt",
-  /*  302 */ "filter_clause",
-  /*  303 */ "over_clause",
-  /*  304 */ "range_or_rows",
-  /*  305 */ "frame_bound",
-  /*  306 */ "frame_bound_s",
-  /*  307 */ "frame_bound_e",
-  /*  308 */ "frame_exclude_opt",
-  /*  309 */ "frame_exclude",
-};
-#endif /* defined(YYCOVERAGE) || !defined(NDEBUG) */
-
-#ifndef NDEBUG
-/* For tracing reduce actions, the names of all rules are required.
-*/
-static const char *const yyRuleName[] = {
- /*   0 */ "explain ::= EXPLAIN",
- /*   1 */ "explain ::= EXPLAIN QUERY PLAN",
- /*   2 */ "cmdx ::= cmd",
- /*   3 */ "cmd ::= BEGIN transtype trans_opt",
- /*   4 */ "transtype ::=",
- /*   5 */ "transtype ::= DEFERRED",
- /*   6 */ "transtype ::= IMMEDIATE",
- /*   7 */ "transtype ::= EXCLUSIVE",
- /*   8 */ "cmd ::= COMMIT|END trans_opt",
- /*   9 */ "cmd ::= ROLLBACK trans_opt",
- /*  10 */ "cmd ::= SAVEPOINT nm",
- /*  11 */ "cmd ::= RELEASE savepoint_opt nm",
- /*  12 */ "cmd ::= ROLLBACK trans_opt TO savepoint_opt nm",
- /*  13 */ "create_table ::= createkw temp TABLE ifnotexists nm dbnm",
- /*  14 */ "createkw ::= CREATE",
- /*  15 */ "ifnotexists ::=",
- /*  16 */ "ifnotexists ::= IF NOT EXISTS",
- /*  17 */ "temp ::= TEMP",
- /*  18 */ "temp ::=",
- /*  19 */ "create_table_args ::= LP columnlist conslist_opt RP table_options",
- /*  20 */ "create_table_args ::= AS select",
- /*  21 */ "table_options ::=",
- /*  22 */ "table_options ::= WITHOUT nm",
- /*  23 */ "columnname ::= nm typetoken",
- /*  24 */ "typetoken ::=",
- /*  25 */ "typetoken ::= typename LP signed RP",
- /*  26 */ "typetoken ::= typename LP signed COMMA signed RP",
- /*  27 */ "typename ::= typename ID|STRING",
- /*  28 */ "scanpt ::=",
- /*  29 */ "scantok ::=",
- /*  30 */ "ccons ::= CONSTRAINT nm",
- /*  31 */ "ccons ::= DEFAULT scantok term",
- /*  32 */ "ccons ::= DEFAULT LP expr RP",
- /*  33 */ "ccons ::= DEFAULT PLUS scantok term",
- /*  34 */ "ccons ::= DEFAULT MINUS scantok term",
- /*  35 */ "ccons ::= DEFAULT scantok ID|INDEXED",
- /*  36 */ "ccons ::= NOT NULL onconf",
- /*  37 */ "ccons ::= PRIMARY KEY sortorder onconf autoinc",
- /*  38 */ "ccons ::= UNIQUE onconf",
- /*  39 */ "ccons ::= CHECK LP expr RP",
- /*  40 */ "ccons ::= REFERENCES nm eidlist_opt refargs",
- /*  41 */ "ccons ::= defer_subclause",
- /*  42 */ "ccons ::= COLLATE ID|STRING",
- /*  43 */ "generated ::= LP expr RP",
- /*  44 */ "generated ::= LP expr RP ID",
- /*  45 */ "autoinc ::=",
- /*  46 */ "autoinc ::= AUTOINCR",
- /*  47 */ "refargs ::=",
- /*  48 */ "refargs ::= refargs refarg",
- /*  49 */ "refarg ::= MATCH nm",
- /*  50 */ "refarg ::= ON INSERT refact",
- /*  51 */ "refarg ::= ON DELETE refact",
- /*  52 */ "refarg ::= ON UPDATE refact",
- /*  53 */ "refact ::= SET NULL",
- /*  54 */ "refact ::= SET DEFAULT",
- /*  55 */ "refact ::= CASCADE",
- /*  56 */ "refact ::= RESTRICT",
- /*  57 */ "refact ::= NO ACTION",
- /*  58 */ "defer_subclause ::= NOT DEFERRABLE init_deferred_pred_opt",
- /*  59 */ "defer_subclause ::= DEFERRABLE init_deferred_pred_opt",
- /*  60 */ "init_deferred_pred_opt ::=",
- /*  61 */ "init_deferred_pred_opt ::= INITIALLY DEFERRED",
- /*  62 */ "init_deferred_pred_opt ::= INITIALLY IMMEDIATE",
- /*  63 */ "conslist_opt ::=",
- /*  64 */ "tconscomma ::= COMMA",
- /*  65 */ "tcons ::= CONSTRAINT nm",
- /*  66 */ "tcons ::= PRIMARY KEY LP sortlist autoinc RP onconf",
- /*  67 */ "tcons ::= UNIQUE LP sortlist RP onconf",
- /*  68 */ "tcons ::= CHECK LP expr RP onconf",
- /*  69 */ "tcons ::= FOREIGN KEY LP eidlist RP REFERENCES nm eidlist_opt refargs defer_subclause_opt",
- /*  70 */ "defer_subclause_opt ::=",
- /*  71 */ "onconf ::=",
- /*  72 */ "onconf ::= ON CONFLICT resolvetype",
- /*  73 */ "orconf ::=",
- /*  74 */ "orconf ::= OR resolvetype",
- /*  75 */ "resolvetype ::= IGNORE",
- /*  76 */ "resolvetype ::= REPLACE",
- /*  77 */ "cmd ::= DROP TABLE ifexists fullname",
- /*  78 */ "ifexists ::= IF EXISTS",
- /*  79 */ "ifexists ::=",
- /*  80 */ "cmd ::= createkw temp VIEW ifnotexists nm dbnm eidlist_opt AS select",
- /*  81 */ "cmd ::= DROP VIEW ifexists fullname",
- /*  82 */ "cmd ::= select",
- /*  83 */ "select ::= WITH wqlist selectnowith",
- /*  84 */ "select ::= WITH RECURSIVE wqlist selectnowith",
- /*  85 */ "select ::= selectnowith",
- /*  86 */ "selectnowith ::= selectnowith multiselect_op oneselect",
- /*  87 */ "multiselect_op ::= UNION",
- /*  88 */ "multiselect_op ::= UNION ALL",
- /*  89 */ "multiselect_op ::= EXCEPT|INTERSECT",
- /*  90 */ "oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt orderby_opt limit_opt",
- /*  91 */ "oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt window_clause orderby_opt limit_opt",
- /*  92 */ "values ::= VALUES LP nexprlist RP",
- /*  93 */ "values ::= values COMMA LP nexprlist RP",
- /*  94 */ "distinct ::= DISTINCT",
- /*  95 */ "distinct ::= ALL",
- /*  96 */ "distinct ::=",
- /*  97 */ "sclp ::=",
- /*  98 */ "selcollist ::= sclp scanpt expr scanpt as",
- /*  99 */ "selcollist ::= sclp scanpt STAR",
- /* 100 */ "selcollist ::= sclp scanpt nm DOT STAR",
- /* 101 */ "as ::= AS nm",
- /* 102 */ "as ::=",
- /* 103 */ "from ::=",
- /* 104 */ "from ::= FROM seltablist",
- /* 105 */ "stl_prefix ::= seltablist joinop",
- /* 106 */ "stl_prefix ::=",
- /* 107 */ "seltablist ::= stl_prefix nm dbnm as indexed_opt on_opt using_opt",
- /* 108 */ "seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_opt using_opt",
- /* 109 */ "seltablist ::= stl_prefix LP select RP as on_opt using_opt",
- /* 110 */ "seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt",
- /* 111 */ "dbnm ::=",
- /* 112 */ "dbnm ::= DOT nm",
- /* 113 */ "fullname ::= nm",
- /* 114 */ "fullname ::= nm DOT nm",
- /* 115 */ "xfullname ::= nm",
- /* 116 */ "xfullname ::= nm DOT nm",
- /* 117 */ "xfullname ::= nm DOT nm AS nm",
- /* 118 */ "xfullname ::= nm AS nm",
- /* 119 */ "joinop ::= COMMA|JOIN",
- /* 120 */ "joinop ::= JOIN_KW JOIN",
- /* 121 */ "joinop ::= JOIN_KW nm JOIN",
- /* 122 */ "joinop ::= JOIN_KW nm nm JOIN",
- /* 123 */ "on_opt ::= ON expr",
- /* 124 */ "on_opt ::=",
- /* 125 */ "indexed_opt ::=",
- /* 126 */ "indexed_opt ::= INDEXED BY nm",
- /* 127 */ "indexed_opt ::= NOT INDEXED",
- /* 128 */ "using_opt ::= USING LP idlist RP",
- /* 129 */ "using_opt ::=",
- /* 130 */ "orderby_opt ::=",
- /* 131 */ "orderby_opt ::= ORDER BY sortlist",
- /* 132 */ "sortlist ::= sortlist COMMA expr sortorder nulls",
- /* 133 */ "sortlist ::= expr sortorder nulls",
- /* 134 */ "sortorder ::= ASC",
- /* 135 */ "sortorder ::= DESC",
- /* 136 */ "sortorder ::=",
- /* 137 */ "nulls ::= NULLS FIRST",
- /* 138 */ "nulls ::= NULLS LAST",
- /* 139 */ "nulls ::=",
- /* 140 */ "groupby_opt ::=",
- /* 141 */ "groupby_opt ::= GROUP BY nexprlist",
- /* 142 */ "having_opt ::=",
- /* 143 */ "having_opt ::= HAVING expr",
- /* 144 */ "limit_opt ::=",
- /* 145 */ "limit_opt ::= LIMIT expr",
- /* 146 */ "limit_opt ::= LIMIT expr OFFSET expr",
- /* 147 */ "limit_opt ::= LIMIT expr COMMA expr",
- /* 148 */ "cmd ::= with DELETE FROM xfullname indexed_opt where_opt",
- /* 149 */ "where_opt ::=",
- /* 150 */ "where_opt ::= WHERE expr",
- /* 151 */ "cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt",
- /* 152 */ "setlist ::= setlist COMMA nm EQ expr",
- /* 153 */ "setlist ::= setlist COMMA LP idlist RP EQ expr",
- /* 154 */ "setlist ::= nm EQ expr",
- /* 155 */ "setlist ::= LP idlist RP EQ expr",
- /* 156 */ "cmd ::= with insert_cmd INTO xfullname idlist_opt select upsert",
- /* 157 */ "cmd ::= with insert_cmd INTO xfullname idlist_opt DEFAULT VALUES",
- /* 158 */ "upsert ::=",
- /* 159 */ "upsert ::= ON CONFLICT LP sortlist RP where_opt DO UPDATE SET setlist where_opt",
- /* 160 */ "upsert ::= ON CONFLICT LP sortlist RP where_opt DO NOTHING",
- /* 161 */ "upsert ::= ON CONFLICT DO NOTHING",
- /* 162 */ "insert_cmd ::= INSERT orconf",
- /* 163 */ "insert_cmd ::= REPLACE",
- /* 164 */ "idlist_opt ::=",
- /* 165 */ "idlist_opt ::= LP idlist RP",
- /* 166 */ "idlist ::= idlist COMMA nm",
- /* 167 */ "idlist ::= nm",
- /* 168 */ "expr ::= LP expr RP",
- /* 169 */ "expr ::= ID|INDEXED",
- /* 170 */ "expr ::= JOIN_KW",
- /* 171 */ "expr ::= nm DOT nm",
- /* 172 */ "expr ::= nm DOT nm DOT nm",
- /* 173 */ "term ::= NULL|FLOAT|BLOB",
- /* 174 */ "term ::= STRING",
- /* 175 */ "term ::= INTEGER",
- /* 176 */ "expr ::= VARIABLE",
- /* 177 */ "expr ::= expr COLLATE ID|STRING",
- /* 178 */ "expr ::= CAST LP expr AS typetoken RP",
- /* 179 */ "expr ::= ID|INDEXED LP distinct exprlist RP",
- /* 180 */ "expr ::= ID|INDEXED LP STAR RP",
- /* 181 */ "expr ::= ID|INDEXED LP distinct exprlist RP filter_over",
- /* 182 */ "expr ::= ID|INDEXED LP STAR RP filter_over",
- /* 183 */ "term ::= CTIME_KW",
- /* 184 */ "expr ::= LP nexprlist COMMA expr RP",
- /* 185 */ "expr ::= expr AND expr",
- /* 186 */ "expr ::= expr OR expr",
- /* 187 */ "expr ::= expr LT|GT|GE|LE expr",
- /* 188 */ "expr ::= expr EQ|NE expr",
- /* 189 */ "expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr",
- /* 190 */ "expr ::= expr PLUS|MINUS expr",
- /* 191 */ "expr ::= expr STAR|SLASH|REM expr",
- /* 192 */ "expr ::= expr CONCAT expr",
- /* 193 */ "likeop ::= NOT LIKE_KW|MATCH",
- /* 194 */ "expr ::= expr likeop expr",
- /* 195 */ "expr ::= expr likeop expr ESCAPE expr",
- /* 196 */ "expr ::= expr ISNULL|NOTNULL",
- /* 197 */ "expr ::= expr NOT NULL",
- /* 198 */ "expr ::= expr IS expr",
- /* 199 */ "expr ::= expr IS NOT expr",
- /* 200 */ "expr ::= NOT expr",
- /* 201 */ "expr ::= BITNOT expr",
- /* 202 */ "expr ::= PLUS|MINUS expr",
- /* 203 */ "between_op ::= BETWEEN",
- /* 204 */ "between_op ::= NOT BETWEEN",
- /* 205 */ "expr ::= expr between_op expr AND expr",
- /* 206 */ "in_op ::= IN",
- /* 207 */ "in_op ::= NOT IN",
- /* 208 */ "expr ::= expr in_op LP exprlist RP",
- /* 209 */ "expr ::= LP select RP",
- /* 210 */ "expr ::= expr in_op LP select RP",
- /* 211 */ "expr ::= expr in_op nm dbnm paren_exprlist",
- /* 212 */ "expr ::= EXISTS LP select RP",
- /* 213 */ "expr ::= CASE case_operand case_exprlist case_else END",
- /* 214 */ "case_exprlist ::= case_exprlist WHEN expr THEN expr",
- /* 215 */ "case_exprlist ::= WHEN expr THEN expr",
- /* 216 */ "case_else ::= ELSE expr",
- /* 217 */ "case_else ::=",
- /* 218 */ "case_operand ::= expr",
- /* 219 */ "case_operand ::=",
- /* 220 */ "exprlist ::=",
- /* 221 */ "nexprlist ::= nexprlist COMMA expr",
- /* 222 */ "nexprlist ::= expr",
- /* 223 */ "paren_exprlist ::=",
- /* 224 */ "paren_exprlist ::= LP exprlist RP",
- /* 225 */ "cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt",
- /* 226 */ "uniqueflag ::= UNIQUE",
- /* 227 */ "uniqueflag ::=",
- /* 228 */ "eidlist_opt ::=",
- /* 229 */ "eidlist_opt ::= LP eidlist RP",
- /* 230 */ "eidlist ::= eidlist COMMA nm collate sortorder",
- /* 231 */ "eidlist ::= nm collate sortorder",
- /* 232 */ "collate ::=",
- /* 233 */ "collate ::= COLLATE ID|STRING",
- /* 234 */ "cmd ::= DROP INDEX ifexists fullname",
- /* 235 */ "cmd ::= VACUUM vinto",
- /* 236 */ "cmd ::= VACUUM nm vinto",
- /* 237 */ "vinto ::= INTO expr",
- /* 238 */ "vinto ::=",
- /* 239 */ "cmd ::= PRAGMA nm dbnm",
- /* 240 */ "cmd ::= PRAGMA nm dbnm EQ nmnum",
- /* 241 */ "cmd ::= PRAGMA nm dbnm LP nmnum RP",
- /* 242 */ "cmd ::= PRAGMA nm dbnm EQ minus_num",
- /* 243 */ "cmd ::= PRAGMA nm dbnm LP minus_num RP",
- /* 244 */ "plus_num ::= PLUS INTEGER|FLOAT",
- /* 245 */ "minus_num ::= MINUS INTEGER|FLOAT",
- /* 246 */ "cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END",
- /* 247 */ "trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause",
- /* 248 */ "trigger_time ::= BEFORE|AFTER",
- /* 249 */ "trigger_time ::= INSTEAD OF",
- /* 250 */ "trigger_time ::=",
- /* 251 */ "trigger_event ::= DELETE|INSERT",
- /* 252 */ "trigger_event ::= UPDATE",
- /* 253 */ "trigger_event ::= UPDATE OF idlist",
- /* 254 */ "when_clause ::=",
- /* 255 */ "when_clause ::= WHEN expr",
- /* 256 */ "trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI",
- /* 257 */ "trigger_cmd_list ::= trigger_cmd SEMI",
- /* 258 */ "trnm ::= nm DOT nm",
- /* 259 */ "tridxby ::= INDEXED BY nm",
- /* 260 */ "tridxby ::= NOT INDEXED",
- /* 261 */ "trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist where_opt scanpt",
- /* 262 */ "trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt",
- /* 263 */ "trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt",
- /* 264 */ "trigger_cmd ::= scanpt select scanpt",
- /* 265 */ "expr ::= RAISE LP IGNORE RP",
- /* 266 */ "expr ::= RAISE LP raisetype COMMA nm RP",
- /* 267 */ "raisetype ::= ROLLBACK",
- /* 268 */ "raisetype ::= ABORT",
- /* 269 */ "raisetype ::= FAIL",
- /* 270 */ "cmd ::= DROP TRIGGER ifexists fullname",
- /* 271 */ "cmd ::= ATTACH database_kw_opt expr AS expr key_opt",
- /* 272 */ "cmd ::= DETACH database_kw_opt expr",
- /* 273 */ "key_opt ::=",
- /* 274 */ "key_opt ::= KEY expr",
- /* 275 */ "cmd ::= REINDEX",
- /* 276 */ "cmd ::= REINDEX nm dbnm",
- /* 277 */ "cmd ::= ANALYZE",
- /* 278 */ "cmd ::= ANALYZE nm dbnm",
- /* 279 */ "cmd ::= ALTER TABLE fullname RENAME TO nm",
- /* 280 */ "cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist",
- /* 281 */ "add_column_fullname ::= fullname",
- /* 282 */ "cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm",
- /* 283 */ "cmd ::= create_vtab",
- /* 284 */ "cmd ::= create_vtab LP vtabarglist RP",
- /* 285 */ "create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm",
- /* 286 */ "vtabarg ::=",
- /* 287 */ "vtabargtoken ::= ANY",
- /* 288 */ "vtabargtoken ::= lp anylist RP",
- /* 289 */ "lp ::= LP",
- /* 290 */ "with ::= WITH wqlist",
- /* 291 */ "with ::= WITH RECURSIVE wqlist",
- /* 292 */ "wqlist ::= nm eidlist_opt AS LP select RP",
- /* 293 */ "wqlist ::= wqlist COMMA nm eidlist_opt AS LP select RP",
- /* 294 */ "windowdefn_list ::= windowdefn",
- /* 295 */ "windowdefn_list ::= windowdefn_list COMMA windowdefn",
- /* 296 */ "windowdefn ::= nm AS LP window RP",
- /* 297 */ "window ::= PARTITION BY nexprlist orderby_opt frame_opt",
- /* 298 */ "window ::= nm PARTITION BY nexprlist orderby_opt frame_opt",
- /* 299 */ "window ::= ORDER BY sortlist frame_opt",
- /* 300 */ "window ::= nm ORDER BY sortlist frame_opt",
- /* 301 */ "window ::= frame_opt",
- /* 302 */ "window ::= nm frame_opt",
- /* 303 */ "frame_opt ::=",
- /* 304 */ "frame_opt ::= range_or_rows frame_bound_s frame_exclude_opt",
- /* 305 */ "frame_opt ::= range_or_rows BETWEEN frame_bound_s AND frame_bound_e frame_exclude_opt",
- /* 306 */ "range_or_rows ::= RANGE|ROWS|GROUPS",
- /* 307 */ "frame_bound_s ::= frame_bound",
- /* 308 */ "frame_bound_s ::= UNBOUNDED PRECEDING",
- /* 309 */ "frame_bound_e ::= frame_bound",
- /* 310 */ "frame_bound_e ::= UNBOUNDED FOLLOWING",
- /* 311 */ "frame_bound ::= expr PRECEDING|FOLLOWING",
- /* 312 */ "frame_bound ::= CURRENT ROW",
- /* 313 */ "frame_exclude_opt ::=",
- /* 314 */ "frame_exclude_opt ::= EXCLUDE frame_exclude",
- /* 315 */ "frame_exclude ::= NO OTHERS",
- /* 316 */ "frame_exclude ::= CURRENT ROW",
- /* 317 */ "frame_exclude ::= GROUP|TIES",
- /* 318 */ "window_clause ::= WINDOW windowdefn_list",
- /* 319 */ "filter_over ::= filter_clause over_clause",
- /* 320 */ "filter_over ::= over_clause",
- /* 321 */ "filter_over ::= filter_clause",
- /* 322 */ "over_clause ::= OVER LP window RP",
- /* 323 */ "over_clause ::= OVER nm",
- /* 324 */ "filter_clause ::= FILTER LP WHERE expr RP",
- /* 325 */ "input ::= cmdlist",
- /* 326 */ "cmdlist ::= cmdlist ecmd",
- /* 327 */ "cmdlist ::= ecmd",
- /* 328 */ "ecmd ::= SEMI",
- /* 329 */ "ecmd ::= cmdx SEMI",
- /* 330 */ "ecmd ::= explain cmdx SEMI",
- /* 331 */ "trans_opt ::=",
- /* 332 */ "trans_opt ::= TRANSACTION",
- /* 333 */ "trans_opt ::= TRANSACTION nm",
- /* 334 */ "savepoint_opt ::= SAVEPOINT",
- /* 335 */ "savepoint_opt ::=",
- /* 336 */ "cmd ::= create_table create_table_args",
- /* 337 */ "columnlist ::= columnlist COMMA columnname carglist",
- /* 338 */ "columnlist ::= columnname carglist",
- /* 339 */ "nm ::= ID|INDEXED",
- /* 340 */ "nm ::= STRING",
- /* 341 */ "nm ::= JOIN_KW",
- /* 342 */ "typetoken ::= typename",
- /* 343 */ "typename ::= ID|STRING",
- /* 344 */ "signed ::= plus_num",
- /* 345 */ "signed ::= minus_num",
- /* 346 */ "carglist ::= carglist ccons",
- /* 347 */ "carglist ::=",
- /* 348 */ "ccons ::= NULL onconf",
- /* 349 */ "ccons ::= GENERATED ALWAYS AS generated",
- /* 350 */ "ccons ::= AS generated",
- /* 351 */ "conslist_opt ::= COMMA conslist",
- /* 352 */ "conslist ::= conslist tconscomma tcons",
- /* 353 */ "conslist ::= tcons",
- /* 354 */ "tconscomma ::=",
- /* 355 */ "defer_subclause_opt ::= defer_subclause",
- /* 356 */ "resolvetype ::= raisetype",
- /* 357 */ "selectnowith ::= oneselect",
- /* 358 */ "oneselect ::= values",
- /* 359 */ "sclp ::= selcollist COMMA",
- /* 360 */ "as ::= ID|STRING",
- /* 361 */ "expr ::= term",
- /* 362 */ "likeop ::= LIKE_KW|MATCH",
- /* 363 */ "exprlist ::= nexprlist",
- /* 364 */ "nmnum ::= plus_num",
- /* 365 */ "nmnum ::= nm",
- /* 366 */ "nmnum ::= ON",
- /* 367 */ "nmnum ::= DELETE",
- /* 368 */ "nmnum ::= DEFAULT",
- /* 369 */ "plus_num ::= INTEGER|FLOAT",
- /* 370 */ "foreach_clause ::=",
- /* 371 */ "foreach_clause ::= FOR EACH ROW",
- /* 372 */ "trnm ::= nm",
- /* 373 */ "tridxby ::=",
- /* 374 */ "database_kw_opt ::= DATABASE",
- /* 375 */ "database_kw_opt ::=",
- /* 376 */ "kwcolumn_opt ::=",
- /* 377 */ "kwcolumn_opt ::= COLUMNKW",
- /* 378 */ "vtabarglist ::= vtabarg",
- /* 379 */ "vtabarglist ::= vtabarglist COMMA vtabarg",
- /* 380 */ "vtabarg ::= vtabarg vtabargtoken",
- /* 381 */ "anylist ::=",
- /* 382 */ "anylist ::= anylist LP anylist RP",
- /* 383 */ "anylist ::= anylist ANY",
- /* 384 */ "with ::=",
-};
-#endif /* NDEBUG */
-
-
-#if YYSTACKDEPTH<=0
-/*
-** Try to increase the size of the parser stack.  Return the number
-** of errors.  Return 0 on success.
-*/
-static int yyGrowStack(yyParser *p){
-  int newSize;
-  int idx;
-  yyStackEntry *pNew;
-
-  newSize = p->yystksz*2 + 100;
-  idx = p->yytos ? (int)(p->yytos - p->yystack) : 0;
-  if( p->yystack==&p->yystk0 ){
-    pNew = malloc(newSize*sizeof(pNew[0]));
-    if( pNew ) pNew[0] = p->yystk0;
-  }else{
-    pNew = realloc(p->yystack, newSize*sizeof(pNew[0]));
-  }
-  if( pNew ){
-    p->yystack = pNew;
-    p->yytos = &p->yystack[idx];
-#ifndef NDEBUG
-    if( yyTraceFILE ){
-      fprintf(yyTraceFILE,"%sStack grows from %d to %d entries.\n",
-              yyTracePrompt, p->yystksz, newSize);
-    }
-#endif
-    p->yystksz = newSize;
-  }
-  return pNew==0; 
-}
-#endif
-
-/* Datatype of the argument to the memory allocated passed as the
-** second argument to tdsqlite3ParserAlloc() below.  This can be changed by
-** putting an appropriate #define in the %include section of the input
-** grammar.
-*/
-#ifndef YYMALLOCARGTYPE
-# define YYMALLOCARGTYPE size_t
-#endif
-
-/* Initialize a new parser that has already been allocated.
-*/
-SQLITE_PRIVATE void tdsqlite3ParserInit(void *yypRawParser tdsqlite3ParserCTX_PDECL){
-  yyParser *yypParser = (yyParser*)yypRawParser;
-  tdsqlite3ParserCTX_STORE
-#ifdef YYTRACKMAXSTACKDEPTH
-  yypParser->yyhwm = 0;
-#endif
-#if YYSTACKDEPTH<=0
-  yypParser->yytos = NULL;
-  yypParser->yystack = NULL;
-  yypParser->yystksz = 0;
-  if( yyGrowStack(yypParser) ){
-    yypParser->yystack = &yypParser->yystk0;
-    yypParser->yystksz = 1;
-  }
-#endif
-#ifndef YYNOERRORRECOVERY
-  yypParser->yyerrcnt = -1;
-#endif
-  yypParser->yytos = yypParser->yystack;
-  yypParser->yystack[0].stateno = 0;
-  yypParser->yystack[0].major = 0;
-#if YYSTACKDEPTH>0
-  yypParser->yystackEnd = &yypParser->yystack[YYSTACKDEPTH-1];
-#endif
-}
-
-#ifndef tdsqlite3Parser_ENGINEALWAYSONSTACK
-/* 
-** This function allocates a new parser.
-** The only argument is a pointer to a function which works like
-** malloc.
-**
-** Inputs:
-** A pointer to the function used to allocate memory.
-**
-** Outputs:
-** A pointer to a parser.  This pointer is used in subsequent calls
-** to tdsqlite3Parser and tdsqlite3ParserFree.
-*/
-SQLITE_PRIVATE void *tdsqlite3ParserAlloc(void *(*mallocProc)(YYMALLOCARGTYPE) tdsqlite3ParserCTX_PDECL){
-  yyParser *yypParser;
-  yypParser = (yyParser*)(*mallocProc)( (YYMALLOCARGTYPE)sizeof(yyParser) );
-  if( yypParser ){
-    tdsqlite3ParserCTX_STORE
-    tdsqlite3ParserInit(yypParser tdsqlite3ParserCTX_PARAM);
-  }
-  return (void*)yypParser;
-}
-#endif /* tdsqlite3Parser_ENGINEALWAYSONSTACK */
-
-
-/* The following function deletes the "minor type" or semantic value
-** associated with a symbol.  The symbol can be either a terminal
-** or nonterminal. "yymajor" is the symbol code, and "yypminor" is
-** a pointer to the value to be deleted.  The code used to do the 
-** deletions is derived from the %destructor and/or %token_destructor
-** directives of the input grammar.
-*/
-static void yy_destructor(
-  yyParser *yypParser,    /* The parser */
-  YYCODETYPE yymajor,     /* Type code for object to destroy */
-  YYMINORTYPE *yypminor   /* The object to be destroyed */
-){
-  tdsqlite3ParserARG_FETCH
-  tdsqlite3ParserCTX_FETCH
-  switch( yymajor ){
-    /* Here is inserted the actions which take place when a
-    ** terminal or non-terminal is destroyed.  This can happen
-    ** when the symbol is popped from the stack during a
-    ** reduce or during error processing or when a parser is 
-    ** being destroyed before it is finished parsing.
-    **
-    ** Note: during a reduce, the only symbols destroyed are those
-    ** which appear on the RHS of the rule, but which are *not* used
-    ** inside the C code.
-    */
-/********* Begin destructor definitions ***************************************/
-    case 200: /* select */
-    case 234: /* selectnowith */
-    case 235: /* oneselect */
-    case 247: /* values */
-{
-tdsqlite3SelectDelete(pParse->db, (yypminor->yy539));
-}
-      break;
-    case 211: /* term */
-    case 212: /* expr */
-    case 241: /* where_opt */
-    case 243: /* having_opt */
-    case 255: /* on_opt */
-    case 271: /* case_operand */
-    case 273: /* case_else */
-    case 276: /* vinto */
-    case 283: /* when_clause */
-    case 288: /* key_opt */
-    case 302: /* filter_clause */
-{
-tdsqlite3ExprDelete(pParse->db, (yypminor->yy202));
-}
-      break;
-    case 216: /* eidlist_opt */
-    case 226: /* sortlist */
-    case 227: /* eidlist */
-    case 239: /* selcollist */
-    case 242: /* groupby_opt */
-    case 244: /* orderby_opt */
-    case 248: /* nexprlist */
-    case 249: /* sclp */
-    case 257: /* exprlist */
-    case 262: /* setlist */
-    case 270: /* paren_exprlist */
-    case 272: /* case_exprlist */
-    case 301: /* part_opt */
-{
-tdsqlite3ExprListDelete(pParse->db, (yypminor->yy242));
-}
-      break;
-    case 233: /* fullname */
-    case 240: /* from */
-    case 251: /* seltablist */
-    case 252: /* stl_prefix */
-    case 258: /* xfullname */
-{
-tdsqlite3SrcListDelete(pParse->db, (yypminor->yy47));
-}
-      break;
-    case 236: /* wqlist */
-{
-tdsqlite3WithDelete(pParse->db, (yypminor->yy131));
-}
-      break;
-    case 246: /* window_clause */
-    case 297: /* windowdefn_list */
-{
-tdsqlite3WindowListDelete(pParse->db, (yypminor->yy303));
-}
-      break;
-    case 256: /* using_opt */
-    case 259: /* idlist */
-    case 264: /* idlist_opt */
-{
-tdsqlite3IdListDelete(pParse->db, (yypminor->yy600));
-}
-      break;
-    case 266: /* filter_over */
-    case 298: /* windowdefn */
-    case 299: /* window */
-    case 300: /* frame_opt */
-    case 303: /* over_clause */
-{
-tdsqlite3WindowDelete(pParse->db, (yypminor->yy303));
-}
-      break;
-    case 279: /* trigger_cmd_list */
-    case 284: /* trigger_cmd */
-{
-tdsqlite3DeleteTriggerStep(pParse->db, (yypminor->yy447));
-}
-      break;
-    case 281: /* trigger_event */
-{
-tdsqlite3IdListDelete(pParse->db, (yypminor->yy230).b);
-}
-      break;
-    case 305: /* frame_bound */
-    case 306: /* frame_bound_s */
-    case 307: /* frame_bound_e */
-{
-tdsqlite3ExprDelete(pParse->db, (yypminor->yy77).pExpr);
-}
-      break;
-/********* End destructor definitions *****************************************/
-    default:  break;   /* If no destructor action specified: do nothing */
-  }
-}
-
-/*
-** Pop the parser's stack once.
-**
-** If there is a destructor routine associated with the token which
-** is popped from the stack, then call it.
-*/
-static void yy_pop_parser_stack(yyParser *pParser){
-  yyStackEntry *yytos;
-  assert( pParser->yytos!=0 );
-  assert( pParser->yytos > pParser->yystack );
-  yytos = pParser->yytos--;
-#ifndef NDEBUG
-  if( yyTraceFILE ){
-    fprintf(yyTraceFILE,"%sPopping %s\n",
-      yyTracePrompt,
-      yyTokenName[yytos->major]);
-  }
-#endif
-  yy_destructor(pParser, yytos->major, &yytos->minor);
-}
-
-/*
-** Clear all secondary memory allocations from the parser
-*/
-SQLITE_PRIVATE void tdsqlite3ParserFinalize(void *p){
-  yyParser *pParser = (yyParser*)p;
-  while( pParser->yytos>pParser->yystack ) yy_pop_parser_stack(pParser);
-#if YYSTACKDEPTH<=0
-  if( pParser->yystack!=&pParser->yystk0 ) free(pParser->yystack);
-#endif
-}
-
-#ifndef tdsqlite3Parser_ENGINEALWAYSONSTACK
-/* 
-** Deallocate and destroy a parser.  Destructors are called for
-** all stack elements before shutting the parser down.
-**
-** If the YYPARSEFREENEVERNULL macro exists (for example because it
-** is defined in a %include section of the input grammar) then it is
-** assumed that the input pointer is never NULL.
-*/
-SQLITE_PRIVATE void tdsqlite3ParserFree(
-  void *p,                    /* The parser to be deleted */
-  void (*freeProc)(void*)     /* Function used to reclaim memory */
-){
-#ifndef YYPARSEFREENEVERNULL
-  if( p==0 ) return;
-#endif
-  tdsqlite3ParserFinalize(p);
-  (*freeProc)(p);
-}
-#endif /* tdsqlite3Parser_ENGINEALWAYSONSTACK */
-
-/*
-** Return the peak depth of the stack for a parser.
-*/
-#ifdef YYTRACKMAXSTACKDEPTH
-SQLITE_PRIVATE int tdsqlite3ParserStackPeak(void *p){
-  yyParser *pParser = (yyParser*)p;
-  return pParser->yyhwm;
-}
-#endif
-
-/* This array of booleans keeps track of the parser statement
-** coverage.  The element yycoverage[X][Y] is set when the parser
-** is in state X and has a lookahead token Y.  In a well-tested
-** systems, every element of this matrix should end up being set.
-*/
-#if defined(YYCOVERAGE)
-static unsigned char yycoverage[YYNSTATE][YYNTOKEN];
-#endif
-
-/*
-** Write into out a description of every state/lookahead combination that
-**
-**   (1)  has not been used by the parser, and
-**   (2)  is not a syntax error.
-**
-** Return the number of missed state/lookahead combinations.
-*/
-#if defined(YYCOVERAGE)
-SQLITE_PRIVATE int tdsqlite3ParserCoverage(FILE *out){
-  int stateno, iLookAhead, i;
-  int nMissed = 0;
-  for(stateno=0; stateno<YYNSTATE; stateno++){
-    i = yy_shift_ofst[stateno];
-    for(iLookAhead=0; iLookAhead<YYNTOKEN; iLookAhead++){
-      if( yy_lookahead[i+iLookAhead]!=iLookAhead ) continue;
-      if( yycoverage[stateno][iLookAhead]==0 ) nMissed++;
-      if( out ){
-        fprintf(out,"State %d lookahead %s %s\n", stateno,
-                yyTokenName[iLookAhead],
-                yycoverage[stateno][iLookAhead] ? "ok" : "missed");
-      }
-    }
-  }
-  return nMissed;
-}
-#endif
-
-/*
-** Find the appropriate action for a parser given the terminal
-** look-ahead token iLookAhead.
-*/
-static YYACTIONTYPE yy_find_shift_action(
-  YYCODETYPE iLookAhead,    /* The look-ahead token */
-  YYACTIONTYPE stateno      /* Current state number */
-){
-  int i;
-
-  if( stateno>YY_MAX_SHIFT ) return stateno;
-  assert( stateno <= YY_SHIFT_COUNT );
-#if defined(YYCOVERAGE)
-  yycoverage[stateno][iLookAhead] = 1;
-#endif
-  do{
-    i = yy_shift_ofst[stateno];
-    assert( i>=0 );
-    assert( i<=YY_ACTTAB_COUNT );
-    assert( i+YYNTOKEN<=(int)YY_NLOOKAHEAD );
-    assert( iLookAhead!=YYNOCODE );
-    assert( iLookAhead < YYNTOKEN );
-    i += iLookAhead;
-    assert( i<(int)YY_NLOOKAHEAD );
-    if( yy_lookahead[i]!=iLookAhead ){
-#ifdef YYFALLBACK
-      YYCODETYPE iFallback;            /* Fallback token */
-      assert( iLookAhead<sizeof(yyFallback)/sizeof(yyFallback[0]) );
-      iFallback = yyFallback[iLookAhead];
-      if( iFallback!=0 ){
-#ifndef NDEBUG
-        if( yyTraceFILE ){
-          fprintf(yyTraceFILE, "%sFALLBACK %s => %s\n",
-             yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[iFallback]);
-        }
-#endif
-        assert( yyFallback[iFallback]==0 ); /* Fallback loop must terminate */
-        iLookAhead = iFallback;
-        continue;
-      }
-#endif
-#ifdef YYWILDCARD
-      {
-        int j = i - iLookAhead + YYWILDCARD;
-        assert( j<(int)(sizeof(yy_lookahead)/sizeof(yy_lookahead[0])) );
-        if( yy_lookahead[j]==YYWILDCARD && iLookAhead>0 ){
-#ifndef NDEBUG
-          if( yyTraceFILE ){
-            fprintf(yyTraceFILE, "%sWILDCARD %s => %s\n",
-               yyTracePrompt, yyTokenName[iLookAhead],
-               yyTokenName[YYWILDCARD]);
-          }
-#endif /* NDEBUG */
-          return yy_action[j];
-        }
-      }
-#endif /* YYWILDCARD */
-      return yy_default[stateno];
-    }else{
-      assert( i>=0 && i<sizeof(yy_action)/sizeof(yy_action[0]) );
-      return yy_action[i];
-    }
-  }while(1);
-}
-
-/*
-** Find the appropriate action for a parser given the non-terminal
-** look-ahead token iLookAhead.
-*/
-static YYACTIONTYPE yy_find_reduce_action(
-  YYACTIONTYPE stateno,     /* Current state number */
-  YYCODETYPE iLookAhead     /* The look-ahead token */
-){
-  int i;
-#ifdef YYERRORSYMBOL
-  if( stateno>YY_REDUCE_COUNT ){
-    return yy_default[stateno];
-  }
-#else
-  assert( stateno<=YY_REDUCE_COUNT );
-#endif
-  i = yy_reduce_ofst[stateno];
-  assert( iLookAhead!=YYNOCODE );
-  i += iLookAhead;
-#ifdef YYERRORSYMBOL
-  if( i<0 || i>=YY_ACTTAB_COUNT || yy_lookahead[i]!=iLookAhead ){
-    return yy_default[stateno];
-  }
-#else
-  assert( i>=0 && i<YY_ACTTAB_COUNT );
-  assert( yy_lookahead[i]==iLookAhead );
-#endif
-  return yy_action[i];
-}
-
-/*
-** The following routine is called if the stack overflows.
-*/
-static void yyStackOverflow(yyParser *yypParser){
-   tdsqlite3ParserARG_FETCH
-   tdsqlite3ParserCTX_FETCH
-#ifndef NDEBUG
-   if( yyTraceFILE ){
-     fprintf(yyTraceFILE,"%sStack Overflow!\n",yyTracePrompt);
-   }
-#endif
-   while( yypParser->yytos>yypParser->yystack ) yy_pop_parser_stack(yypParser);
-   /* Here code is inserted which will execute if the parser
-   ** stack every overflows */
-/******** Begin %stack_overflow code ******************************************/
-
-  tdsqlite3ErrorMsg(pParse, "parser stack overflow");
-/******** End %stack_overflow code ********************************************/
-   tdsqlite3ParserARG_STORE /* Suppress warning about unused %extra_argument var */
-   tdsqlite3ParserCTX_STORE
-}
-
-/*
-** Print tracing information for a SHIFT action
-*/
-#ifndef NDEBUG
-static void yyTraceShift(yyParser *yypParser, int yyNewState, const char *zTag){
-  if( yyTraceFILE ){
-    if( yyNewState<YYNSTATE ){
-      fprintf(yyTraceFILE,"%s%s '%s', go to state %d\n",
-         yyTracePrompt, zTag, yyTokenName[yypParser->yytos->major],
-         yyNewState);
-    }else{
-      fprintf(yyTraceFILE,"%s%s '%s', pending reduce %d\n",
-         yyTracePrompt, zTag, yyTokenName[yypParser->yytos->major],
-         yyNewState - YY_MIN_REDUCE);
-    }
-  }
-}
-#else
-# define yyTraceShift(X,Y,Z)
-#endif
-
-/*
-** Perform a shift action.
-*/
-static void yy_shift(
-  yyParser *yypParser,          /* The parser to be shifted */
-  YYACTIONTYPE yyNewState,      /* The new state to shift in */
-  YYCODETYPE yyMajor,           /* The major token to shift in */
-  tdsqlite3ParserTOKENTYPE yyMinor        /* The minor token to shift in */
-){
-  yyStackEntry *yytos;
-  yypParser->yytos++;
-#ifdef YYTRACKMAXSTACKDEPTH
-  if( (int)(yypParser->yytos - yypParser->yystack)>yypParser->yyhwm ){
-    yypParser->yyhwm++;
-    assert( yypParser->yyhwm == (int)(yypParser->yytos - yypParser->yystack) );
-  }
-#endif
-#if YYSTACKDEPTH>0 
-  if( yypParser->yytos>yypParser->yystackEnd ){
-    yypParser->yytos--;
-    yyStackOverflow(yypParser);
-    return;
-  }
-#else
-  if( yypParser->yytos>=&yypParser->yystack[yypParser->yystksz] ){
-    if( yyGrowStack(yypParser) ){
-      yypParser->yytos--;
-      yyStackOverflow(yypParser);
-      return;
-    }
-  }
-#endif
-  if( yyNewState > YY_MAX_SHIFT ){
-    yyNewState += YY_MIN_REDUCE - YY_MIN_SHIFTREDUCE;
-  }
-  yytos = yypParser->yytos;
-  yytos->stateno = yyNewState;
-  yytos->major = yyMajor;
-  yytos->minor.yy0 = yyMinor;
-  yyTraceShift(yypParser, yyNewState, "Shift");
-}
-
-/* For rule J, yyRuleInfoLhs[J] contains the symbol on the left-hand side
-** of that rule */
-static const YYCODETYPE yyRuleInfoLhs[] = {
-   185,  /* (0) explain ::= EXPLAIN */
-   185,  /* (1) explain ::= EXPLAIN QUERY PLAN */
-   184,  /* (2) cmdx ::= cmd */
-   186,  /* (3) cmd ::= BEGIN transtype trans_opt */
-   187,  /* (4) transtype ::= */
-   187,  /* (5) transtype ::= DEFERRED */
-   187,  /* (6) transtype ::= IMMEDIATE */
-   187,  /* (7) transtype ::= EXCLUSIVE */
-   186,  /* (8) cmd ::= COMMIT|END trans_opt */
-   186,  /* (9) cmd ::= ROLLBACK trans_opt */
-   186,  /* (10) cmd ::= SAVEPOINT nm */
-   186,  /* (11) cmd ::= RELEASE savepoint_opt nm */
-   186,  /* (12) cmd ::= ROLLBACK trans_opt TO savepoint_opt nm */
-   191,  /* (13) create_table ::= createkw temp TABLE ifnotexists nm dbnm */
-   193,  /* (14) createkw ::= CREATE */
-   195,  /* (15) ifnotexists ::= */
-   195,  /* (16) ifnotexists ::= IF NOT EXISTS */
-   194,  /* (17) temp ::= TEMP */
-   194,  /* (18) temp ::= */
-   192,  /* (19) create_table_args ::= LP columnlist conslist_opt RP table_options */
-   192,  /* (20) create_table_args ::= AS select */
-   199,  /* (21) table_options ::= */
-   199,  /* (22) table_options ::= WITHOUT nm */
-   201,  /* (23) columnname ::= nm typetoken */
-   203,  /* (24) typetoken ::= */
-   203,  /* (25) typetoken ::= typename LP signed RP */
-   203,  /* (26) typetoken ::= typename LP signed COMMA signed RP */
-   204,  /* (27) typename ::= typename ID|STRING */
-   208,  /* (28) scanpt ::= */
-   209,  /* (29) scantok ::= */
-   210,  /* (30) ccons ::= CONSTRAINT nm */
-   210,  /* (31) ccons ::= DEFAULT scantok term */
-   210,  /* (32) ccons ::= DEFAULT LP expr RP */
-   210,  /* (33) ccons ::= DEFAULT PLUS scantok term */
-   210,  /* (34) ccons ::= DEFAULT MINUS scantok term */
-   210,  /* (35) ccons ::= DEFAULT scantok ID|INDEXED */
-   210,  /* (36) ccons ::= NOT NULL onconf */
-   210,  /* (37) ccons ::= PRIMARY KEY sortorder onconf autoinc */
-   210,  /* (38) ccons ::= UNIQUE onconf */
-   210,  /* (39) ccons ::= CHECK LP expr RP */
-   210,  /* (40) ccons ::= REFERENCES nm eidlist_opt refargs */
-   210,  /* (41) ccons ::= defer_subclause */
-   210,  /* (42) ccons ::= COLLATE ID|STRING */
-   219,  /* (43) generated ::= LP expr RP */
-   219,  /* (44) generated ::= LP expr RP ID */
-   215,  /* (45) autoinc ::= */
-   215,  /* (46) autoinc ::= AUTOINCR */
-   217,  /* (47) refargs ::= */
-   217,  /* (48) refargs ::= refargs refarg */
-   220,  /* (49) refarg ::= MATCH nm */
-   220,  /* (50) refarg ::= ON INSERT refact */
-   220,  /* (51) refarg ::= ON DELETE refact */
-   220,  /* (52) refarg ::= ON UPDATE refact */
-   221,  /* (53) refact ::= SET NULL */
-   221,  /* (54) refact ::= SET DEFAULT */
-   221,  /* (55) refact ::= CASCADE */
-   221,  /* (56) refact ::= RESTRICT */
-   221,  /* (57) refact ::= NO ACTION */
-   218,  /* (58) defer_subclause ::= NOT DEFERRABLE init_deferred_pred_opt */
-   218,  /* (59) defer_subclause ::= DEFERRABLE init_deferred_pred_opt */
-   222,  /* (60) init_deferred_pred_opt ::= */
-   222,  /* (61) init_deferred_pred_opt ::= INITIALLY DEFERRED */
-   222,  /* (62) init_deferred_pred_opt ::= INITIALLY IMMEDIATE */
-   198,  /* (63) conslist_opt ::= */
-   224,  /* (64) tconscomma ::= COMMA */
-   225,  /* (65) tcons ::= CONSTRAINT nm */
-   225,  /* (66) tcons ::= PRIMARY KEY LP sortlist autoinc RP onconf */
-   225,  /* (67) tcons ::= UNIQUE LP sortlist RP onconf */
-   225,  /* (68) tcons ::= CHECK LP expr RP onconf */
-   225,  /* (69) tcons ::= FOREIGN KEY LP eidlist RP REFERENCES nm eidlist_opt refargs defer_subclause_opt */
-   228,  /* (70) defer_subclause_opt ::= */
-   213,  /* (71) onconf ::= */
-   213,  /* (72) onconf ::= ON CONFLICT resolvetype */
-   229,  /* (73) orconf ::= */
-   229,  /* (74) orconf ::= OR resolvetype */
-   230,  /* (75) resolvetype ::= IGNORE */
-   230,  /* (76) resolvetype ::= REPLACE */
-   186,  /* (77) cmd ::= DROP TABLE ifexists fullname */
-   232,  /* (78) ifexists ::= IF EXISTS */
-   232,  /* (79) ifexists ::= */
-   186,  /* (80) cmd ::= createkw temp VIEW ifnotexists nm dbnm eidlist_opt AS select */
-   186,  /* (81) cmd ::= DROP VIEW ifexists fullname */
-   186,  /* (82) cmd ::= select */
-   200,  /* (83) select ::= WITH wqlist selectnowith */
-   200,  /* (84) select ::= WITH RECURSIVE wqlist selectnowith */
-   200,  /* (85) select ::= selectnowith */
-   234,  /* (86) selectnowith ::= selectnowith multiselect_op oneselect */
-   237,  /* (87) multiselect_op ::= UNION */
-   237,  /* (88) multiselect_op ::= UNION ALL */
-   237,  /* (89) multiselect_op ::= EXCEPT|INTERSECT */
-   235,  /* (90) oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt orderby_opt limit_opt */
-   235,  /* (91) oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt window_clause orderby_opt limit_opt */
-   247,  /* (92) values ::= VALUES LP nexprlist RP */
-   247,  /* (93) values ::= values COMMA LP nexprlist RP */
-   238,  /* (94) distinct ::= DISTINCT */
-   238,  /* (95) distinct ::= ALL */
-   238,  /* (96) distinct ::= */
-   249,  /* (97) sclp ::= */
-   239,  /* (98) selcollist ::= sclp scanpt expr scanpt as */
-   239,  /* (99) selcollist ::= sclp scanpt STAR */
-   239,  /* (100) selcollist ::= sclp scanpt nm DOT STAR */
-   250,  /* (101) as ::= AS nm */
-   250,  /* (102) as ::= */
-   240,  /* (103) from ::= */
-   240,  /* (104) from ::= FROM seltablist */
-   252,  /* (105) stl_prefix ::= seltablist joinop */
-   252,  /* (106) stl_prefix ::= */
-   251,  /* (107) seltablist ::= stl_prefix nm dbnm as indexed_opt on_opt using_opt */
-   251,  /* (108) seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_opt using_opt */
-   251,  /* (109) seltablist ::= stl_prefix LP select RP as on_opt using_opt */
-   251,  /* (110) seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt */
-   196,  /* (111) dbnm ::= */
-   196,  /* (112) dbnm ::= DOT nm */
-   233,  /* (113) fullname ::= nm */
-   233,  /* (114) fullname ::= nm DOT nm */
-   258,  /* (115) xfullname ::= nm */
-   258,  /* (116) xfullname ::= nm DOT nm */
-   258,  /* (117) xfullname ::= nm DOT nm AS nm */
-   258,  /* (118) xfullname ::= nm AS nm */
-   253,  /* (119) joinop ::= COMMA|JOIN */
-   253,  /* (120) joinop ::= JOIN_KW JOIN */
-   253,  /* (121) joinop ::= JOIN_KW nm JOIN */
-   253,  /* (122) joinop ::= JOIN_KW nm nm JOIN */
-   255,  /* (123) on_opt ::= ON expr */
-   255,  /* (124) on_opt ::= */
-   254,  /* (125) indexed_opt ::= */
-   254,  /* (126) indexed_opt ::= INDEXED BY nm */
-   254,  /* (127) indexed_opt ::= NOT INDEXED */
-   256,  /* (128) using_opt ::= USING LP idlist RP */
-   256,  /* (129) using_opt ::= */
-   244,  /* (130) orderby_opt ::= */
-   244,  /* (131) orderby_opt ::= ORDER BY sortlist */
-   226,  /* (132) sortlist ::= sortlist COMMA expr sortorder nulls */
-   226,  /* (133) sortlist ::= expr sortorder nulls */
-   214,  /* (134) sortorder ::= ASC */
-   214,  /* (135) sortorder ::= DESC */
-   214,  /* (136) sortorder ::= */
-   260,  /* (137) nulls ::= NULLS FIRST */
-   260,  /* (138) nulls ::= NULLS LAST */
-   260,  /* (139) nulls ::= */
-   242,  /* (140) groupby_opt ::= */
-   242,  /* (141) groupby_opt ::= GROUP BY nexprlist */
-   243,  /* (142) having_opt ::= */
-   243,  /* (143) having_opt ::= HAVING expr */
-   245,  /* (144) limit_opt ::= */
-   245,  /* (145) limit_opt ::= LIMIT expr */
-   245,  /* (146) limit_opt ::= LIMIT expr OFFSET expr */
-   245,  /* (147) limit_opt ::= LIMIT expr COMMA expr */
-   186,  /* (148) cmd ::= with DELETE FROM xfullname indexed_opt where_opt */
-   241,  /* (149) where_opt ::= */
-   241,  /* (150) where_opt ::= WHERE expr */
-   186,  /* (151) cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt */
-   262,  /* (152) setlist ::= setlist COMMA nm EQ expr */
-   262,  /* (153) setlist ::= setlist COMMA LP idlist RP EQ expr */
-   262,  /* (154) setlist ::= nm EQ expr */
-   262,  /* (155) setlist ::= LP idlist RP EQ expr */
-   186,  /* (156) cmd ::= with insert_cmd INTO xfullname idlist_opt select upsert */
-   186,  /* (157) cmd ::= with insert_cmd INTO xfullname idlist_opt DEFAULT VALUES */
-   265,  /* (158) upsert ::= */
-   265,  /* (159) upsert ::= ON CONFLICT LP sortlist RP where_opt DO UPDATE SET setlist where_opt */
-   265,  /* (160) upsert ::= ON CONFLICT LP sortlist RP where_opt DO NOTHING */
-   265,  /* (161) upsert ::= ON CONFLICT DO NOTHING */
-   263,  /* (162) insert_cmd ::= INSERT orconf */
-   263,  /* (163) insert_cmd ::= REPLACE */
-   264,  /* (164) idlist_opt ::= */
-   264,  /* (165) idlist_opt ::= LP idlist RP */
-   259,  /* (166) idlist ::= idlist COMMA nm */
-   259,  /* (167) idlist ::= nm */
-   212,  /* (168) expr ::= LP expr RP */
-   212,  /* (169) expr ::= ID|INDEXED */
-   212,  /* (170) expr ::= JOIN_KW */
-   212,  /* (171) expr ::= nm DOT nm */
-   212,  /* (172) expr ::= nm DOT nm DOT nm */
-   211,  /* (173) term ::= NULL|FLOAT|BLOB */
-   211,  /* (174) term ::= STRING */
-   211,  /* (175) term ::= INTEGER */
-   212,  /* (176) expr ::= VARIABLE */
-   212,  /* (177) expr ::= expr COLLATE ID|STRING */
-   212,  /* (178) expr ::= CAST LP expr AS typetoken RP */
-   212,  /* (179) expr ::= ID|INDEXED LP distinct exprlist RP */
-   212,  /* (180) expr ::= ID|INDEXED LP STAR RP */
-   212,  /* (181) expr ::= ID|INDEXED LP distinct exprlist RP filter_over */
-   212,  /* (182) expr ::= ID|INDEXED LP STAR RP filter_over */
-   211,  /* (183) term ::= CTIME_KW */
-   212,  /* (184) expr ::= LP nexprlist COMMA expr RP */
-   212,  /* (185) expr ::= expr AND expr */
-   212,  /* (186) expr ::= expr OR expr */
-   212,  /* (187) expr ::= expr LT|GT|GE|LE expr */
-   212,  /* (188) expr ::= expr EQ|NE expr */
-   212,  /* (189) expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */
-   212,  /* (190) expr ::= expr PLUS|MINUS expr */
-   212,  /* (191) expr ::= expr STAR|SLASH|REM expr */
-   212,  /* (192) expr ::= expr CONCAT expr */
-   267,  /* (193) likeop ::= NOT LIKE_KW|MATCH */
-   212,  /* (194) expr ::= expr likeop expr */
-   212,  /* (195) expr ::= expr likeop expr ESCAPE expr */
-   212,  /* (196) expr ::= expr ISNULL|NOTNULL */
-   212,  /* (197) expr ::= expr NOT NULL */
-   212,  /* (198) expr ::= expr IS expr */
-   212,  /* (199) expr ::= expr IS NOT expr */
-   212,  /* (200) expr ::= NOT expr */
-   212,  /* (201) expr ::= BITNOT expr */
-   212,  /* (202) expr ::= PLUS|MINUS expr */
-   268,  /* (203) between_op ::= BETWEEN */
-   268,  /* (204) between_op ::= NOT BETWEEN */
-   212,  /* (205) expr ::= expr between_op expr AND expr */
-   269,  /* (206) in_op ::= IN */
-   269,  /* (207) in_op ::= NOT IN */
-   212,  /* (208) expr ::= expr in_op LP exprlist RP */
-   212,  /* (209) expr ::= LP select RP */
-   212,  /* (210) expr ::= expr in_op LP select RP */
-   212,  /* (211) expr ::= expr in_op nm dbnm paren_exprlist */
-   212,  /* (212) expr ::= EXISTS LP select RP */
-   212,  /* (213) expr ::= CASE case_operand case_exprlist case_else END */
-   272,  /* (214) case_exprlist ::= case_exprlist WHEN expr THEN expr */
-   272,  /* (215) case_exprlist ::= WHEN expr THEN expr */
-   273,  /* (216) case_else ::= ELSE expr */
-   273,  /* (217) case_else ::= */
-   271,  /* (218) case_operand ::= expr */
-   271,  /* (219) case_operand ::= */
-   257,  /* (220) exprlist ::= */
-   248,  /* (221) nexprlist ::= nexprlist COMMA expr */
-   248,  /* (222) nexprlist ::= expr */
-   270,  /* (223) paren_exprlist ::= */
-   270,  /* (224) paren_exprlist ::= LP exprlist RP */
-   186,  /* (225) cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */
-   274,  /* (226) uniqueflag ::= UNIQUE */
-   274,  /* (227) uniqueflag ::= */
-   216,  /* (228) eidlist_opt ::= */
-   216,  /* (229) eidlist_opt ::= LP eidlist RP */
-   227,  /* (230) eidlist ::= eidlist COMMA nm collate sortorder */
-   227,  /* (231) eidlist ::= nm collate sortorder */
-   275,  /* (232) collate ::= */
-   275,  /* (233) collate ::= COLLATE ID|STRING */
-   186,  /* (234) cmd ::= DROP INDEX ifexists fullname */
-   186,  /* (235) cmd ::= VACUUM vinto */
-   186,  /* (236) cmd ::= VACUUM nm vinto */
-   276,  /* (237) vinto ::= INTO expr */
-   276,  /* (238) vinto ::= */
-   186,  /* (239) cmd ::= PRAGMA nm dbnm */
-   186,  /* (240) cmd ::= PRAGMA nm dbnm EQ nmnum */
-   186,  /* (241) cmd ::= PRAGMA nm dbnm LP nmnum RP */
-   186,  /* (242) cmd ::= PRAGMA nm dbnm EQ minus_num */
-   186,  /* (243) cmd ::= PRAGMA nm dbnm LP minus_num RP */
-   206,  /* (244) plus_num ::= PLUS INTEGER|FLOAT */
-   207,  /* (245) minus_num ::= MINUS INTEGER|FLOAT */
-   186,  /* (246) cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */
-   278,  /* (247) trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */
-   280,  /* (248) trigger_time ::= BEFORE|AFTER */
-   280,  /* (249) trigger_time ::= INSTEAD OF */
-   280,  /* (250) trigger_time ::= */
-   281,  /* (251) trigger_event ::= DELETE|INSERT */
-   281,  /* (252) trigger_event ::= UPDATE */
-   281,  /* (253) trigger_event ::= UPDATE OF idlist */
-   283,  /* (254) when_clause ::= */
-   283,  /* (255) when_clause ::= WHEN expr */
-   279,  /* (256) trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */
-   279,  /* (257) trigger_cmd_list ::= trigger_cmd SEMI */
-   285,  /* (258) trnm ::= nm DOT nm */
-   286,  /* (259) tridxby ::= INDEXED BY nm */
-   286,  /* (260) tridxby ::= NOT INDEXED */
-   284,  /* (261) trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist where_opt scanpt */
-   284,  /* (262) trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */
-   284,  /* (263) trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */
-   284,  /* (264) trigger_cmd ::= scanpt select scanpt */
-   212,  /* (265) expr ::= RAISE LP IGNORE RP */
-   212,  /* (266) expr ::= RAISE LP raisetype COMMA nm RP */
-   231,  /* (267) raisetype ::= ROLLBACK */
-   231,  /* (268) raisetype ::= ABORT */
-   231,  /* (269) raisetype ::= FAIL */
-   186,  /* (270) cmd ::= DROP TRIGGER ifexists fullname */
-   186,  /* (271) cmd ::= ATTACH database_kw_opt expr AS expr key_opt */
-   186,  /* (272) cmd ::= DETACH database_kw_opt expr */
-   288,  /* (273) key_opt ::= */
-   288,  /* (274) key_opt ::= KEY expr */
-   186,  /* (275) cmd ::= REINDEX */
-   186,  /* (276) cmd ::= REINDEX nm dbnm */
-   186,  /* (277) cmd ::= ANALYZE */
-   186,  /* (278) cmd ::= ANALYZE nm dbnm */
-   186,  /* (279) cmd ::= ALTER TABLE fullname RENAME TO nm */
-   186,  /* (280) cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */
-   289,  /* (281) add_column_fullname ::= fullname */
-   186,  /* (282) cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */
-   186,  /* (283) cmd ::= create_vtab */
-   186,  /* (284) cmd ::= create_vtab LP vtabarglist RP */
-   291,  /* (285) create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */
-   293,  /* (286) vtabarg ::= */
-   294,  /* (287) vtabargtoken ::= ANY */
-   294,  /* (288) vtabargtoken ::= lp anylist RP */
-   295,  /* (289) lp ::= LP */
-   261,  /* (290) with ::= WITH wqlist */
-   261,  /* (291) with ::= WITH RECURSIVE wqlist */
-   236,  /* (292) wqlist ::= nm eidlist_opt AS LP select RP */
-   236,  /* (293) wqlist ::= wqlist COMMA nm eidlist_opt AS LP select RP */
-   297,  /* (294) windowdefn_list ::= windowdefn */
-   297,  /* (295) windowdefn_list ::= windowdefn_list COMMA windowdefn */
-   298,  /* (296) windowdefn ::= nm AS LP window RP */
-   299,  /* (297) window ::= PARTITION BY nexprlist orderby_opt frame_opt */
-   299,  /* (298) window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */
-   299,  /* (299) window ::= ORDER BY sortlist frame_opt */
-   299,  /* (300) window ::= nm ORDER BY sortlist frame_opt */
-   299,  /* (301) window ::= frame_opt */
-   299,  /* (302) window ::= nm frame_opt */
-   300,  /* (303) frame_opt ::= */
-   300,  /* (304) frame_opt ::= range_or_rows frame_bound_s frame_exclude_opt */
-   300,  /* (305) frame_opt ::= range_or_rows BETWEEN frame_bound_s AND frame_bound_e frame_exclude_opt */
-   304,  /* (306) range_or_rows ::= RANGE|ROWS|GROUPS */
-   306,  /* (307) frame_bound_s ::= frame_bound */
-   306,  /* (308) frame_bound_s ::= UNBOUNDED PRECEDING */
-   307,  /* (309) frame_bound_e ::= frame_bound */
-   307,  /* (310) frame_bound_e ::= UNBOUNDED FOLLOWING */
-   305,  /* (311) frame_bound ::= expr PRECEDING|FOLLOWING */
-   305,  /* (312) frame_bound ::= CURRENT ROW */
-   308,  /* (313) frame_exclude_opt ::= */
-   308,  /* (314) frame_exclude_opt ::= EXCLUDE frame_exclude */
-   309,  /* (315) frame_exclude ::= NO OTHERS */
-   309,  /* (316) frame_exclude ::= CURRENT ROW */
-   309,  /* (317) frame_exclude ::= GROUP|TIES */
-   246,  /* (318) window_clause ::= WINDOW windowdefn_list */
-   266,  /* (319) filter_over ::= filter_clause over_clause */
-   266,  /* (320) filter_over ::= over_clause */
-   266,  /* (321) filter_over ::= filter_clause */
-   303,  /* (322) over_clause ::= OVER LP window RP */
-   303,  /* (323) over_clause ::= OVER nm */
-   302,  /* (324) filter_clause ::= FILTER LP WHERE expr RP */
-   181,  /* (325) input ::= cmdlist */
-   182,  /* (326) cmdlist ::= cmdlist ecmd */
-   182,  /* (327) cmdlist ::= ecmd */
-   183,  /* (328) ecmd ::= SEMI */
-   183,  /* (329) ecmd ::= cmdx SEMI */
-   183,  /* (330) ecmd ::= explain cmdx SEMI */
-   188,  /* (331) trans_opt ::= */
-   188,  /* (332) trans_opt ::= TRANSACTION */
-   188,  /* (333) trans_opt ::= TRANSACTION nm */
-   190,  /* (334) savepoint_opt ::= SAVEPOINT */
-   190,  /* (335) savepoint_opt ::= */
-   186,  /* (336) cmd ::= create_table create_table_args */
-   197,  /* (337) columnlist ::= columnlist COMMA columnname carglist */
-   197,  /* (338) columnlist ::= columnname carglist */
-   189,  /* (339) nm ::= ID|INDEXED */
-   189,  /* (340) nm ::= STRING */
-   189,  /* (341) nm ::= JOIN_KW */
-   203,  /* (342) typetoken ::= typename */
-   204,  /* (343) typename ::= ID|STRING */
-   205,  /* (344) signed ::= plus_num */
-   205,  /* (345) signed ::= minus_num */
-   202,  /* (346) carglist ::= carglist ccons */
-   202,  /* (347) carglist ::= */
-   210,  /* (348) ccons ::= NULL onconf */
-   210,  /* (349) ccons ::= GENERATED ALWAYS AS generated */
-   210,  /* (350) ccons ::= AS generated */
-   198,  /* (351) conslist_opt ::= COMMA conslist */
-   223,  /* (352) conslist ::= conslist tconscomma tcons */
-   223,  /* (353) conslist ::= tcons */
-   224,  /* (354) tconscomma ::= */
-   228,  /* (355) defer_subclause_opt ::= defer_subclause */
-   230,  /* (356) resolvetype ::= raisetype */
-   234,  /* (357) selectnowith ::= oneselect */
-   235,  /* (358) oneselect ::= values */
-   249,  /* (359) sclp ::= selcollist COMMA */
-   250,  /* (360) as ::= ID|STRING */
-   212,  /* (361) expr ::= term */
-   267,  /* (362) likeop ::= LIKE_KW|MATCH */
-   257,  /* (363) exprlist ::= nexprlist */
-   277,  /* (364) nmnum ::= plus_num */
-   277,  /* (365) nmnum ::= nm */
-   277,  /* (366) nmnum ::= ON */
-   277,  /* (367) nmnum ::= DELETE */
-   277,  /* (368) nmnum ::= DEFAULT */
-   206,  /* (369) plus_num ::= INTEGER|FLOAT */
-   282,  /* (370) foreach_clause ::= */
-   282,  /* (371) foreach_clause ::= FOR EACH ROW */
-   285,  /* (372) trnm ::= nm */
-   286,  /* (373) tridxby ::= */
-   287,  /* (374) database_kw_opt ::= DATABASE */
-   287,  /* (375) database_kw_opt ::= */
-   290,  /* (376) kwcolumn_opt ::= */
-   290,  /* (377) kwcolumn_opt ::= COLUMNKW */
-   292,  /* (378) vtabarglist ::= vtabarg */
-   292,  /* (379) vtabarglist ::= vtabarglist COMMA vtabarg */
-   293,  /* (380) vtabarg ::= vtabarg vtabargtoken */
-   296,  /* (381) anylist ::= */
-   296,  /* (382) anylist ::= anylist LP anylist RP */
-   296,  /* (383) anylist ::= anylist ANY */
-   261,  /* (384) with ::= */
-};
-
-/* For rule J, yyRuleInfoNRhs[J] contains the negative of the number
-** of symbols on the right-hand side of that rule. */
-static const signed char yyRuleInfoNRhs[] = {
-   -1,  /* (0) explain ::= EXPLAIN */
-   -3,  /* (1) explain ::= EXPLAIN QUERY PLAN */
-   -1,  /* (2) cmdx ::= cmd */
-   -3,  /* (3) cmd ::= BEGIN transtype trans_opt */
-    0,  /* (4) transtype ::= */
-   -1,  /* (5) transtype ::= DEFERRED */
-   -1,  /* (6) transtype ::= IMMEDIATE */
-   -1,  /* (7) transtype ::= EXCLUSIVE */
-   -2,  /* (8) cmd ::= COMMIT|END trans_opt */
-   -2,  /* (9) cmd ::= ROLLBACK trans_opt */
-   -2,  /* (10) cmd ::= SAVEPOINT nm */
-   -3,  /* (11) cmd ::= RELEASE savepoint_opt nm */
-   -5,  /* (12) cmd ::= ROLLBACK trans_opt TO savepoint_opt nm */
-   -6,  /* (13) create_table ::= createkw temp TABLE ifnotexists nm dbnm */
-   -1,  /* (14) createkw ::= CREATE */
-    0,  /* (15) ifnotexists ::= */
-   -3,  /* (16) ifnotexists ::= IF NOT EXISTS */
-   -1,  /* (17) temp ::= TEMP */
-    0,  /* (18) temp ::= */
-   -5,  /* (19) create_table_args ::= LP columnlist conslist_opt RP table_options */
-   -2,  /* (20) create_table_args ::= AS select */
-    0,  /* (21) table_options ::= */
-   -2,  /* (22) table_options ::= WITHOUT nm */
-   -2,  /* (23) columnname ::= nm typetoken */
-    0,  /* (24) typetoken ::= */
-   -4,  /* (25) typetoken ::= typename LP signed RP */
-   -6,  /* (26) typetoken ::= typename LP signed COMMA signed RP */
-   -2,  /* (27) typename ::= typename ID|STRING */
-    0,  /* (28) scanpt ::= */
-    0,  /* (29) scantok ::= */
-   -2,  /* (30) ccons ::= CONSTRAINT nm */
-   -3,  /* (31) ccons ::= DEFAULT scantok term */
-   -4,  /* (32) ccons ::= DEFAULT LP expr RP */
-   -4,  /* (33) ccons ::= DEFAULT PLUS scantok term */
-   -4,  /* (34) ccons ::= DEFAULT MINUS scantok term */
-   -3,  /* (35) ccons ::= DEFAULT scantok ID|INDEXED */
-   -3,  /* (36) ccons ::= NOT NULL onconf */
-   -5,  /* (37) ccons ::= PRIMARY KEY sortorder onconf autoinc */
-   -2,  /* (38) ccons ::= UNIQUE onconf */
-   -4,  /* (39) ccons ::= CHECK LP expr RP */
-   -4,  /* (40) ccons ::= REFERENCES nm eidlist_opt refargs */
-   -1,  /* (41) ccons ::= defer_subclause */
-   -2,  /* (42) ccons ::= COLLATE ID|STRING */
-   -3,  /* (43) generated ::= LP expr RP */
-   -4,  /* (44) generated ::= LP expr RP ID */
-    0,  /* (45) autoinc ::= */
-   -1,  /* (46) autoinc ::= AUTOINCR */
-    0,  /* (47) refargs ::= */
-   -2,  /* (48) refargs ::= refargs refarg */
-   -2,  /* (49) refarg ::= MATCH nm */
-   -3,  /* (50) refarg ::= ON INSERT refact */
-   -3,  /* (51) refarg ::= ON DELETE refact */
-   -3,  /* (52) refarg ::= ON UPDATE refact */
-   -2,  /* (53) refact ::= SET NULL */
-   -2,  /* (54) refact ::= SET DEFAULT */
-   -1,  /* (55) refact ::= CASCADE */
-   -1,  /* (56) refact ::= RESTRICT */
-   -2,  /* (57) refact ::= NO ACTION */
-   -3,  /* (58) defer_subclause ::= NOT DEFERRABLE init_deferred_pred_opt */
-   -2,  /* (59) defer_subclause ::= DEFERRABLE init_deferred_pred_opt */
-    0,  /* (60) init_deferred_pred_opt ::= */
-   -2,  /* (61) init_deferred_pred_opt ::= INITIALLY DEFERRED */
-   -2,  /* (62) init_deferred_pred_opt ::= INITIALLY IMMEDIATE */
-    0,  /* (63) conslist_opt ::= */
-   -1,  /* (64) tconscomma ::= COMMA */
-   -2,  /* (65) tcons ::= CONSTRAINT nm */
-   -7,  /* (66) tcons ::= PRIMARY KEY LP sortlist autoinc RP onconf */
-   -5,  /* (67) tcons ::= UNIQUE LP sortlist RP onconf */
-   -5,  /* (68) tcons ::= CHECK LP expr RP onconf */
-  -10,  /* (69) tcons ::= FOREIGN KEY LP eidlist RP REFERENCES nm eidlist_opt refargs defer_subclause_opt */
-    0,  /* (70) defer_subclause_opt ::= */
-    0,  /* (71) onconf ::= */
-   -3,  /* (72) onconf ::= ON CONFLICT resolvetype */
-    0,  /* (73) orconf ::= */
-   -2,  /* (74) orconf ::= OR resolvetype */
-   -1,  /* (75) resolvetype ::= IGNORE */
-   -1,  /* (76) resolvetype ::= REPLACE */
-   -4,  /* (77) cmd ::= DROP TABLE ifexists fullname */
-   -2,  /* (78) ifexists ::= IF EXISTS */
-    0,  /* (79) ifexists ::= */
-   -9,  /* (80) cmd ::= createkw temp VIEW ifnotexists nm dbnm eidlist_opt AS select */
-   -4,  /* (81) cmd ::= DROP VIEW ifexists fullname */
-   -1,  /* (82) cmd ::= select */
-   -3,  /* (83) select ::= WITH wqlist selectnowith */
-   -4,  /* (84) select ::= WITH RECURSIVE wqlist selectnowith */
-   -1,  /* (85) select ::= selectnowith */
-   -3,  /* (86) selectnowith ::= selectnowith multiselect_op oneselect */
-   -1,  /* (87) multiselect_op ::= UNION */
-   -2,  /* (88) multiselect_op ::= UNION ALL */
-   -1,  /* (89) multiselect_op ::= EXCEPT|INTERSECT */
-   -9,  /* (90) oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt orderby_opt limit_opt */
-  -10,  /* (91) oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt window_clause orderby_opt limit_opt */
-   -4,  /* (92) values ::= VALUES LP nexprlist RP */
-   -5,  /* (93) values ::= values COMMA LP nexprlist RP */
-   -1,  /* (94) distinct ::= DISTINCT */
-   -1,  /* (95) distinct ::= ALL */
-    0,  /* (96) distinct ::= */
-    0,  /* (97) sclp ::= */
-   -5,  /* (98) selcollist ::= sclp scanpt expr scanpt as */
-   -3,  /* (99) selcollist ::= sclp scanpt STAR */
-   -5,  /* (100) selcollist ::= sclp scanpt nm DOT STAR */
-   -2,  /* (101) as ::= AS nm */
-    0,  /* (102) as ::= */
-    0,  /* (103) from ::= */
-   -2,  /* (104) from ::= FROM seltablist */
-   -2,  /* (105) stl_prefix ::= seltablist joinop */
-    0,  /* (106) stl_prefix ::= */
-   -7,  /* (107) seltablist ::= stl_prefix nm dbnm as indexed_opt on_opt using_opt */
-   -9,  /* (108) seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_opt using_opt */
-   -7,  /* (109) seltablist ::= stl_prefix LP select RP as on_opt using_opt */
-   -7,  /* (110) seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt */
-    0,  /* (111) dbnm ::= */
-   -2,  /* (112) dbnm ::= DOT nm */
-   -1,  /* (113) fullname ::= nm */
-   -3,  /* (114) fullname ::= nm DOT nm */
-   -1,  /* (115) xfullname ::= nm */
-   -3,  /* (116) xfullname ::= nm DOT nm */
-   -5,  /* (117) xfullname ::= nm DOT nm AS nm */
-   -3,  /* (118) xfullname ::= nm AS nm */
-   -1,  /* (119) joinop ::= COMMA|JOIN */
-   -2,  /* (120) joinop ::= JOIN_KW JOIN */
-   -3,  /* (121) joinop ::= JOIN_KW nm JOIN */
-   -4,  /* (122) joinop ::= JOIN_KW nm nm JOIN */
-   -2,  /* (123) on_opt ::= ON expr */
-    0,  /* (124) on_opt ::= */
-    0,  /* (125) indexed_opt ::= */
-   -3,  /* (126) indexed_opt ::= INDEXED BY nm */
-   -2,  /* (127) indexed_opt ::= NOT INDEXED */
-   -4,  /* (128) using_opt ::= USING LP idlist RP */
-    0,  /* (129) using_opt ::= */
-    0,  /* (130) orderby_opt ::= */
-   -3,  /* (131) orderby_opt ::= ORDER BY sortlist */
-   -5,  /* (132) sortlist ::= sortlist COMMA expr sortorder nulls */
-   -3,  /* (133) sortlist ::= expr sortorder nulls */
-   -1,  /* (134) sortorder ::= ASC */
-   -1,  /* (135) sortorder ::= DESC */
-    0,  /* (136) sortorder ::= */
-   -2,  /* (137) nulls ::= NULLS FIRST */
-   -2,  /* (138) nulls ::= NULLS LAST */
-    0,  /* (139) nulls ::= */
-    0,  /* (140) groupby_opt ::= */
-   -3,  /* (141) groupby_opt ::= GROUP BY nexprlist */
-    0,  /* (142) having_opt ::= */
-   -2,  /* (143) having_opt ::= HAVING expr */
-    0,  /* (144) limit_opt ::= */
-   -2,  /* (145) limit_opt ::= LIMIT expr */
-   -4,  /* (146) limit_opt ::= LIMIT expr OFFSET expr */
-   -4,  /* (147) limit_opt ::= LIMIT expr COMMA expr */
-   -6,  /* (148) cmd ::= with DELETE FROM xfullname indexed_opt where_opt */
-    0,  /* (149) where_opt ::= */
-   -2,  /* (150) where_opt ::= WHERE expr */
-   -8,  /* (151) cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt */
-   -5,  /* (152) setlist ::= setlist COMMA nm EQ expr */
-   -7,  /* (153) setlist ::= setlist COMMA LP idlist RP EQ expr */
-   -3,  /* (154) setlist ::= nm EQ expr */
-   -5,  /* (155) setlist ::= LP idlist RP EQ expr */
-   -7,  /* (156) cmd ::= with insert_cmd INTO xfullname idlist_opt select upsert */
-   -7,  /* (157) cmd ::= with insert_cmd INTO xfullname idlist_opt DEFAULT VALUES */
-    0,  /* (158) upsert ::= */
-  -11,  /* (159) upsert ::= ON CONFLICT LP sortlist RP where_opt DO UPDATE SET setlist where_opt */
-   -8,  /* (160) upsert ::= ON CONFLICT LP sortlist RP where_opt DO NOTHING */
-   -4,  /* (161) upsert ::= ON CONFLICT DO NOTHING */
-   -2,  /* (162) insert_cmd ::= INSERT orconf */
-   -1,  /* (163) insert_cmd ::= REPLACE */
-    0,  /* (164) idlist_opt ::= */
-   -3,  /* (165) idlist_opt ::= LP idlist RP */
-   -3,  /* (166) idlist ::= idlist COMMA nm */
-   -1,  /* (167) idlist ::= nm */
-   -3,  /* (168) expr ::= LP expr RP */
-   -1,  /* (169) expr ::= ID|INDEXED */
-   -1,  /* (170) expr ::= JOIN_KW */
-   -3,  /* (171) expr ::= nm DOT nm */
-   -5,  /* (172) expr ::= nm DOT nm DOT nm */
-   -1,  /* (173) term ::= NULL|FLOAT|BLOB */
-   -1,  /* (174) term ::= STRING */
-   -1,  /* (175) term ::= INTEGER */
-   -1,  /* (176) expr ::= VARIABLE */
-   -3,  /* (177) expr ::= expr COLLATE ID|STRING */
-   -6,  /* (178) expr ::= CAST LP expr AS typetoken RP */
-   -5,  /* (179) expr ::= ID|INDEXED LP distinct exprlist RP */
-   -4,  /* (180) expr ::= ID|INDEXED LP STAR RP */
-   -6,  /* (181) expr ::= ID|INDEXED LP distinct exprlist RP filter_over */
-   -5,  /* (182) expr ::= ID|INDEXED LP STAR RP filter_over */
-   -1,  /* (183) term ::= CTIME_KW */
-   -5,  /* (184) expr ::= LP nexprlist COMMA expr RP */
-   -3,  /* (185) expr ::= expr AND expr */
-   -3,  /* (186) expr ::= expr OR expr */
-   -3,  /* (187) expr ::= expr LT|GT|GE|LE expr */
-   -3,  /* (188) expr ::= expr EQ|NE expr */
-   -3,  /* (189) expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */
-   -3,  /* (190) expr ::= expr PLUS|MINUS expr */
-   -3,  /* (191) expr ::= expr STAR|SLASH|REM expr */
-   -3,  /* (192) expr ::= expr CONCAT expr */
-   -2,  /* (193) likeop ::= NOT LIKE_KW|MATCH */
-   -3,  /* (194) expr ::= expr likeop expr */
-   -5,  /* (195) expr ::= expr likeop expr ESCAPE expr */
-   -2,  /* (196) expr ::= expr ISNULL|NOTNULL */
-   -3,  /* (197) expr ::= expr NOT NULL */
-   -3,  /* (198) expr ::= expr IS expr */
-   -4,  /* (199) expr ::= expr IS NOT expr */
-   -2,  /* (200) expr ::= NOT expr */
-   -2,  /* (201) expr ::= BITNOT expr */
-   -2,  /* (202) expr ::= PLUS|MINUS expr */
-   -1,  /* (203) between_op ::= BETWEEN */
-   -2,  /* (204) between_op ::= NOT BETWEEN */
-   -5,  /* (205) expr ::= expr between_op expr AND expr */
-   -1,  /* (206) in_op ::= IN */
-   -2,  /* (207) in_op ::= NOT IN */
-   -5,  /* (208) expr ::= expr in_op LP exprlist RP */
-   -3,  /* (209) expr ::= LP select RP */
-   -5,  /* (210) expr ::= expr in_op LP select RP */
-   -5,  /* (211) expr ::= expr in_op nm dbnm paren_exprlist */
-   -4,  /* (212) expr ::= EXISTS LP select RP */
-   -5,  /* (213) expr ::= CASE case_operand case_exprlist case_else END */
-   -5,  /* (214) case_exprlist ::= case_exprlist WHEN expr THEN expr */
-   -4,  /* (215) case_exprlist ::= WHEN expr THEN expr */
-   -2,  /* (216) case_else ::= ELSE expr */
-    0,  /* (217) case_else ::= */
-   -1,  /* (218) case_operand ::= expr */
-    0,  /* (219) case_operand ::= */
-    0,  /* (220) exprlist ::= */
-   -3,  /* (221) nexprlist ::= nexprlist COMMA expr */
-   -1,  /* (222) nexprlist ::= expr */
-    0,  /* (223) paren_exprlist ::= */
-   -3,  /* (224) paren_exprlist ::= LP exprlist RP */
-  -12,  /* (225) cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */
-   -1,  /* (226) uniqueflag ::= UNIQUE */
-    0,  /* (227) uniqueflag ::= */
-    0,  /* (228) eidlist_opt ::= */
-   -3,  /* (229) eidlist_opt ::= LP eidlist RP */
-   -5,  /* (230) eidlist ::= eidlist COMMA nm collate sortorder */
-   -3,  /* (231) eidlist ::= nm collate sortorder */
-    0,  /* (232) collate ::= */
-   -2,  /* (233) collate ::= COLLATE ID|STRING */
-   -4,  /* (234) cmd ::= DROP INDEX ifexists fullname */
-   -2,  /* (235) cmd ::= VACUUM vinto */
-   -3,  /* (236) cmd ::= VACUUM nm vinto */
-   -2,  /* (237) vinto ::= INTO expr */
-    0,  /* (238) vinto ::= */
-   -3,  /* (239) cmd ::= PRAGMA nm dbnm */
-   -5,  /* (240) cmd ::= PRAGMA nm dbnm EQ nmnum */
-   -6,  /* (241) cmd ::= PRAGMA nm dbnm LP nmnum RP */
-   -5,  /* (242) cmd ::= PRAGMA nm dbnm EQ minus_num */
-   -6,  /* (243) cmd ::= PRAGMA nm dbnm LP minus_num RP */
-   -2,  /* (244) plus_num ::= PLUS INTEGER|FLOAT */
-   -2,  /* (245) minus_num ::= MINUS INTEGER|FLOAT */
-   -5,  /* (246) cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */
-  -11,  /* (247) trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */
-   -1,  /* (248) trigger_time ::= BEFORE|AFTER */
-   -2,  /* (249) trigger_time ::= INSTEAD OF */
-    0,  /* (250) trigger_time ::= */
-   -1,  /* (251) trigger_event ::= DELETE|INSERT */
-   -1,  /* (252) trigger_event ::= UPDATE */
-   -3,  /* (253) trigger_event ::= UPDATE OF idlist */
-    0,  /* (254) when_clause ::= */
-   -2,  /* (255) when_clause ::= WHEN expr */
-   -3,  /* (256) trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */
-   -2,  /* (257) trigger_cmd_list ::= trigger_cmd SEMI */
-   -3,  /* (258) trnm ::= nm DOT nm */
-   -3,  /* (259) tridxby ::= INDEXED BY nm */
-   -2,  /* (260) tridxby ::= NOT INDEXED */
-   -8,  /* (261) trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist where_opt scanpt */
-   -8,  /* (262) trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */
-   -6,  /* (263) trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */
-   -3,  /* (264) trigger_cmd ::= scanpt select scanpt */
-   -4,  /* (265) expr ::= RAISE LP IGNORE RP */
-   -6,  /* (266) expr ::= RAISE LP raisetype COMMA nm RP */
-   -1,  /* (267) raisetype ::= ROLLBACK */
-   -1,  /* (268) raisetype ::= ABORT */
-   -1,  /* (269) raisetype ::= FAIL */
-   -4,  /* (270) cmd ::= DROP TRIGGER ifexists fullname */
-   -6,  /* (271) cmd ::= ATTACH database_kw_opt expr AS expr key_opt */
-   -3,  /* (272) cmd ::= DETACH database_kw_opt expr */
-    0,  /* (273) key_opt ::= */
-   -2,  /* (274) key_opt ::= KEY expr */
-   -1,  /* (275) cmd ::= REINDEX */
-   -3,  /* (276) cmd ::= REINDEX nm dbnm */
-   -1,  /* (277) cmd ::= ANALYZE */
-   -3,  /* (278) cmd ::= ANALYZE nm dbnm */
-   -6,  /* (279) cmd ::= ALTER TABLE fullname RENAME TO nm */
-   -7,  /* (280) cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */
-   -1,  /* (281) add_column_fullname ::= fullname */
-   -8,  /* (282) cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */
-   -1,  /* (283) cmd ::= create_vtab */
-   -4,  /* (284) cmd ::= create_vtab LP vtabarglist RP */
-   -8,  /* (285) create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */
-    0,  /* (286) vtabarg ::= */
-   -1,  /* (287) vtabargtoken ::= ANY */
-   -3,  /* (288) vtabargtoken ::= lp anylist RP */
-   -1,  /* (289) lp ::= LP */
-   -2,  /* (290) with ::= WITH wqlist */
-   -3,  /* (291) with ::= WITH RECURSIVE wqlist */
-   -6,  /* (292) wqlist ::= nm eidlist_opt AS LP select RP */
-   -8,  /* (293) wqlist ::= wqlist COMMA nm eidlist_opt AS LP select RP */
-   -1,  /* (294) windowdefn_list ::= windowdefn */
-   -3,  /* (295) windowdefn_list ::= windowdefn_list COMMA windowdefn */
-   -5,  /* (296) windowdefn ::= nm AS LP window RP */
-   -5,  /* (297) window ::= PARTITION BY nexprlist orderby_opt frame_opt */
-   -6,  /* (298) window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */
-   -4,  /* (299) window ::= ORDER BY sortlist frame_opt */
-   -5,  /* (300) window ::= nm ORDER BY sortlist frame_opt */
-   -1,  /* (301) window ::= frame_opt */
-   -2,  /* (302) window ::= nm frame_opt */
-    0,  /* (303) frame_opt ::= */
-   -3,  /* (304) frame_opt ::= range_or_rows frame_bound_s frame_exclude_opt */
-   -6,  /* (305) frame_opt ::= range_or_rows BETWEEN frame_bound_s AND frame_bound_e frame_exclude_opt */
-   -1,  /* (306) range_or_rows ::= RANGE|ROWS|GROUPS */
-   -1,  /* (307) frame_bound_s ::= frame_bound */
-   -2,  /* (308) frame_bound_s ::= UNBOUNDED PRECEDING */
-   -1,  /* (309) frame_bound_e ::= frame_bound */
-   -2,  /* (310) frame_bound_e ::= UNBOUNDED FOLLOWING */
-   -2,  /* (311) frame_bound ::= expr PRECEDING|FOLLOWING */
-   -2,  /* (312) frame_bound ::= CURRENT ROW */
-    0,  /* (313) frame_exclude_opt ::= */
-   -2,  /* (314) frame_exclude_opt ::= EXCLUDE frame_exclude */
-   -2,  /* (315) frame_exclude ::= NO OTHERS */
-   -2,  /* (316) frame_exclude ::= CURRENT ROW */
-   -1,  /* (317) frame_exclude ::= GROUP|TIES */
-   -2,  /* (318) window_clause ::= WINDOW windowdefn_list */
-   -2,  /* (319) filter_over ::= filter_clause over_clause */
-   -1,  /* (320) filter_over ::= over_clause */
-   -1,  /* (321) filter_over ::= filter_clause */
-   -4,  /* (322) over_clause ::= OVER LP window RP */
-   -2,  /* (323) over_clause ::= OVER nm */
-   -5,  /* (324) filter_clause ::= FILTER LP WHERE expr RP */
-   -1,  /* (325) input ::= cmdlist */
-   -2,  /* (326) cmdlist ::= cmdlist ecmd */
-   -1,  /* (327) cmdlist ::= ecmd */
-   -1,  /* (328) ecmd ::= SEMI */
-   -2,  /* (329) ecmd ::= cmdx SEMI */
-   -3,  /* (330) ecmd ::= explain cmdx SEMI */
-    0,  /* (331) trans_opt ::= */
-   -1,  /* (332) trans_opt ::= TRANSACTION */
-   -2,  /* (333) trans_opt ::= TRANSACTION nm */
-   -1,  /* (334) savepoint_opt ::= SAVEPOINT */
-    0,  /* (335) savepoint_opt ::= */
-   -2,  /* (336) cmd ::= create_table create_table_args */
-   -4,  /* (337) columnlist ::= columnlist COMMA columnname carglist */
-   -2,  /* (338) columnlist ::= columnname carglist */
-   -1,  /* (339) nm ::= ID|INDEXED */
-   -1,  /* (340) nm ::= STRING */
-   -1,  /* (341) nm ::= JOIN_KW */
-   -1,  /* (342) typetoken ::= typename */
-   -1,  /* (343) typename ::= ID|STRING */
-   -1,  /* (344) signed ::= plus_num */
-   -1,  /* (345) signed ::= minus_num */
-   -2,  /* (346) carglist ::= carglist ccons */
-    0,  /* (347) carglist ::= */
-   -2,  /* (348) ccons ::= NULL onconf */
-   -4,  /* (349) ccons ::= GENERATED ALWAYS AS generated */
-   -2,  /* (350) ccons ::= AS generated */
-   -2,  /* (351) conslist_opt ::= COMMA conslist */
-   -3,  /* (352) conslist ::= conslist tconscomma tcons */
-   -1,  /* (353) conslist ::= tcons */
-    0,  /* (354) tconscomma ::= */
-   -1,  /* (355) defer_subclause_opt ::= defer_subclause */
-   -1,  /* (356) resolvetype ::= raisetype */
-   -1,  /* (357) selectnowith ::= oneselect */
-   -1,  /* (358) oneselect ::= values */
-   -2,  /* (359) sclp ::= selcollist COMMA */
-   -1,  /* (360) as ::= ID|STRING */
-   -1,  /* (361) expr ::= term */
-   -1,  /* (362) likeop ::= LIKE_KW|MATCH */
-   -1,  /* (363) exprlist ::= nexprlist */
-   -1,  /* (364) nmnum ::= plus_num */
-   -1,  /* (365) nmnum ::= nm */
-   -1,  /* (366) nmnum ::= ON */
-   -1,  /* (367) nmnum ::= DELETE */
-   -1,  /* (368) nmnum ::= DEFAULT */
-   -1,  /* (369) plus_num ::= INTEGER|FLOAT */
-    0,  /* (370) foreach_clause ::= */
-   -3,  /* (371) foreach_clause ::= FOR EACH ROW */
-   -1,  /* (372) trnm ::= nm */
-    0,  /* (373) tridxby ::= */
-   -1,  /* (374) database_kw_opt ::= DATABASE */
-    0,  /* (375) database_kw_opt ::= */
-    0,  /* (376) kwcolumn_opt ::= */
-   -1,  /* (377) kwcolumn_opt ::= COLUMNKW */
-   -1,  /* (378) vtabarglist ::= vtabarg */
-   -3,  /* (379) vtabarglist ::= vtabarglist COMMA vtabarg */
-   -2,  /* (380) vtabarg ::= vtabarg vtabargtoken */
-    0,  /* (381) anylist ::= */
-   -4,  /* (382) anylist ::= anylist LP anylist RP */
-   -2,  /* (383) anylist ::= anylist ANY */
-    0,  /* (384) with ::= */
-};
-
-static void yy_accept(yyParser*);  /* Forward Declaration */
-
-/*
-** Perform a reduce action and the shift that must immediately
-** follow the reduce.
-**
-** The yyLookahead and yyLookaheadToken parameters provide reduce actions
-** access to the lookahead token (if any).  The yyLookahead will be YYNOCODE
-** if the lookahead token has already been consumed.  As this procedure is
-** only called from one place, optimizing compilers will in-line it, which
-** means that the extra parameters have no performance impact.
-*/
-static YYACTIONTYPE yy_reduce(
-  yyParser *yypParser,         /* The parser */
-  unsigned int yyruleno,       /* Number of the rule by which to reduce */
-  int yyLookahead,             /* Lookahead token, or YYNOCODE if none */
-  tdsqlite3ParserTOKENTYPE yyLookaheadToken  /* Value of the lookahead token */
-  tdsqlite3ParserCTX_PDECL                   /* %extra_context */
-){
-  int yygoto;                     /* The next state */
-  YYACTIONTYPE yyact;             /* The next action */
-  yyStackEntry *yymsp;            /* The top of the parser's stack */
-  int yysize;                     /* Amount to pop the stack */
-  tdsqlite3ParserARG_FETCH
-  (void)yyLookahead;
-  (void)yyLookaheadToken;
-  yymsp = yypParser->yytos;
-#ifndef NDEBUG
-  if( yyTraceFILE && yyruleno<(int)(sizeof(yyRuleName)/sizeof(yyRuleName[0])) ){
-    yysize = yyRuleInfoNRhs[yyruleno];
-    if( yysize ){
-      fprintf(yyTraceFILE, "%sReduce %d [%s]%s, pop back to state %d.\n",
-        yyTracePrompt,
-        yyruleno, yyRuleName[yyruleno],
-        yyruleno<YYNRULE_WITH_ACTION ? "" : " without external action",
-        yymsp[yysize].stateno);
-    }else{
-      fprintf(yyTraceFILE, "%sReduce %d [%s]%s.\n",
-        yyTracePrompt, yyruleno, yyRuleName[yyruleno],
-        yyruleno<YYNRULE_WITH_ACTION ? "" : " without external action");
-    }
-  }
-#endif /* NDEBUG */
-
-  /* Check that the stack is large enough to grow by a single entry
-  ** if the RHS of the rule is empty.  This ensures that there is room
-  ** enough on the stack to push the LHS value */
-  if( yyRuleInfoNRhs[yyruleno]==0 ){
-#ifdef YYTRACKMAXSTACKDEPTH
-    if( (int)(yypParser->yytos - yypParser->yystack)>yypParser->yyhwm ){
-      yypParser->yyhwm++;
-      assert( yypParser->yyhwm == (int)(yypParser->yytos - yypParser->yystack));
-    }
-#endif
-#if YYSTACKDEPTH>0 
-    if( yypParser->yytos>=yypParser->yystackEnd ){
-      yyStackOverflow(yypParser);
-      /* The call to yyStackOverflow() above pops the stack until it is
-      ** empty, causing the main parser loop to exit.  So the return value
-      ** is never used and does not matter. */
-      return 0;
-    }
-#else
-    if( yypParser->yytos>=&yypParser->yystack[yypParser->yystksz-1] ){
-      if( yyGrowStack(yypParser) ){
-        yyStackOverflow(yypParser);
-        /* The call to yyStackOverflow() above pops the stack until it is
-        ** empty, causing the main parser loop to exit.  So the return value
-        ** is never used and does not matter. */
-        return 0;
-      }
-      yymsp = yypParser->yytos;
-    }
-#endif
-  }
-
-  switch( yyruleno ){
-  /* Beginning here are the reduction cases.  A typical example
-  ** follows:
-  **   case 0:
-  **  #line <lineno> <grammarfile>
-  **     { ... }           // User supplied code
-  **  #line <lineno> <thisfile>
-  **     break;
-  */
-/********** Begin reduce actions **********************************************/
-        YYMINORTYPE yylhsminor;
-      case 0: /* explain ::= EXPLAIN */
-{ pParse->explain = 1; }
-        break;
-      case 1: /* explain ::= EXPLAIN QUERY PLAN */
-{ pParse->explain = 2; }
-        break;
-      case 2: /* cmdx ::= cmd */
-{ tdsqlite3FinishCoding(pParse); }
-        break;
-      case 3: /* cmd ::= BEGIN transtype trans_opt */
-{tdsqlite3BeginTransaction(pParse, yymsp[-1].minor.yy192);}
-        break;
-      case 4: /* transtype ::= */
-{yymsp[1].minor.yy192 = TK_DEFERRED;}
-        break;
-      case 5: /* transtype ::= DEFERRED */
-      case 6: /* transtype ::= IMMEDIATE */ yytestcase(yyruleno==6);
-      case 7: /* transtype ::= EXCLUSIVE */ yytestcase(yyruleno==7);
-      case 306: /* range_or_rows ::= RANGE|ROWS|GROUPS */ yytestcase(yyruleno==306);
-{yymsp[0].minor.yy192 = yymsp[0].major; /*A-overwrites-X*/}
-        break;
-      case 8: /* cmd ::= COMMIT|END trans_opt */
-      case 9: /* cmd ::= ROLLBACK trans_opt */ yytestcase(yyruleno==9);
-{tdsqlite3EndTransaction(pParse,yymsp[-1].major);}
-        break;
-      case 10: /* cmd ::= SAVEPOINT nm */
-{
-  tdsqlite3Savepoint(pParse, SAVEPOINT_BEGIN, &yymsp[0].minor.yy0);
-}
-        break;
-      case 11: /* cmd ::= RELEASE savepoint_opt nm */
-{
-  tdsqlite3Savepoint(pParse, SAVEPOINT_RELEASE, &yymsp[0].minor.yy0);
-}
-        break;
-      case 12: /* cmd ::= ROLLBACK trans_opt TO savepoint_opt nm */
-{
-  tdsqlite3Savepoint(pParse, SAVEPOINT_ROLLBACK, &yymsp[0].minor.yy0);
-}
-        break;
-      case 13: /* create_table ::= createkw temp TABLE ifnotexists nm dbnm */
-{
-   tdsqlite3StartTable(pParse,&yymsp[-1].minor.yy0,&yymsp[0].minor.yy0,yymsp[-4].minor.yy192,0,0,yymsp[-2].minor.yy192);
-}
-        break;
-      case 14: /* createkw ::= CREATE */
-{disableLookaside(pParse);}
-        break;
-      case 15: /* ifnotexists ::= */
-      case 18: /* temp ::= */ yytestcase(yyruleno==18);
-      case 21: /* table_options ::= */ yytestcase(yyruleno==21);
-      case 45: /* autoinc ::= */ yytestcase(yyruleno==45);
-      case 60: /* init_deferred_pred_opt ::= */ yytestcase(yyruleno==60);
-      case 70: /* defer_subclause_opt ::= */ yytestcase(yyruleno==70);
-      case 79: /* ifexists ::= */ yytestcase(yyruleno==79);
-      case 96: /* distinct ::= */ yytestcase(yyruleno==96);
-      case 232: /* collate ::= */ yytestcase(yyruleno==232);
-{yymsp[1].minor.yy192 = 0;}
-        break;
-      case 16: /* ifnotexists ::= IF NOT EXISTS */
-{yymsp[-2].minor.yy192 = 1;}
-        break;
-      case 17: /* temp ::= TEMP */
-      case 46: /* autoinc ::= AUTOINCR */ yytestcase(yyruleno==46);
-{yymsp[0].minor.yy192 = 1;}
-        break;
-      case 19: /* create_table_args ::= LP columnlist conslist_opt RP table_options */
-{
-  tdsqlite3EndTable(pParse,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0,yymsp[0].minor.yy192,0);
-}
-        break;
-      case 20: /* create_table_args ::= AS select */
-{
-  tdsqlite3EndTable(pParse,0,0,0,yymsp[0].minor.yy539);
-  tdsqlite3SelectDelete(pParse->db, yymsp[0].minor.yy539);
-}
-        break;
-      case 22: /* table_options ::= WITHOUT nm */
-{
-  if( yymsp[0].minor.yy0.n==5 && tdsqlite3_strnicmp(yymsp[0].minor.yy0.z,"rowid",5)==0 ){
-    yymsp[-1].minor.yy192 = TF_WithoutRowid | TF_NoVisibleRowid;
-  }else{
-    yymsp[-1].minor.yy192 = 0;
-    tdsqlite3ErrorMsg(pParse, "unknown table option: %.*s", yymsp[0].minor.yy0.n, yymsp[0].minor.yy0.z);
-  }
-}
-        break;
-      case 23: /* columnname ::= nm typetoken */
-{tdsqlite3AddColumn(pParse,&yymsp[-1].minor.yy0,&yymsp[0].minor.yy0);}
-        break;
-      case 24: /* typetoken ::= */
-      case 63: /* conslist_opt ::= */ yytestcase(yyruleno==63);
-      case 102: /* as ::= */ yytestcase(yyruleno==102);
-{yymsp[1].minor.yy0.n = 0; yymsp[1].minor.yy0.z = 0;}
-        break;
-      case 25: /* typetoken ::= typename LP signed RP */
-{
-  yymsp[-3].minor.yy0.n = (int)(&yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n] - yymsp[-3].minor.yy0.z);
-}
-        break;
-      case 26: /* typetoken ::= typename LP signed COMMA signed RP */
-{
-  yymsp[-5].minor.yy0.n = (int)(&yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n] - yymsp[-5].minor.yy0.z);
-}
-        break;
-      case 27: /* typename ::= typename ID|STRING */
-{yymsp[-1].minor.yy0.n=yymsp[0].minor.yy0.n+(int)(yymsp[0].minor.yy0.z-yymsp[-1].minor.yy0.z);}
-        break;
-      case 28: /* scanpt ::= */
-{
-  assert( yyLookahead!=YYNOCODE );
-  yymsp[1].minor.yy436 = yyLookaheadToken.z;
-}
-        break;
-      case 29: /* scantok ::= */
-{
-  assert( yyLookahead!=YYNOCODE );
-  yymsp[1].minor.yy0 = yyLookaheadToken;
-}
-        break;
-      case 30: /* ccons ::= CONSTRAINT nm */
-      case 65: /* tcons ::= CONSTRAINT nm */ yytestcase(yyruleno==65);
-{pParse->constraintName = yymsp[0].minor.yy0;}
-        break;
-      case 31: /* ccons ::= DEFAULT scantok term */
-{tdsqlite3AddDefaultValue(pParse,yymsp[0].minor.yy202,yymsp[-1].minor.yy0.z,&yymsp[-1].minor.yy0.z[yymsp[-1].minor.yy0.n]);}
-        break;
-      case 32: /* ccons ::= DEFAULT LP expr RP */
-{tdsqlite3AddDefaultValue(pParse,yymsp[-1].minor.yy202,yymsp[-2].minor.yy0.z+1,yymsp[0].minor.yy0.z);}
-        break;
-      case 33: /* ccons ::= DEFAULT PLUS scantok term */
-{tdsqlite3AddDefaultValue(pParse,yymsp[0].minor.yy202,yymsp[-2].minor.yy0.z,&yymsp[-1].minor.yy0.z[yymsp[-1].minor.yy0.n]);}
-        break;
-      case 34: /* ccons ::= DEFAULT MINUS scantok term */
-{
-  Expr *p = tdsqlite3PExpr(pParse, TK_UMINUS, yymsp[0].minor.yy202, 0);
-  tdsqlite3AddDefaultValue(pParse,p,yymsp[-2].minor.yy0.z,&yymsp[-1].minor.yy0.z[yymsp[-1].minor.yy0.n]);
-}
-        break;
-      case 35: /* ccons ::= DEFAULT scantok ID|INDEXED */
-{
-  Expr *p = tokenExpr(pParse, TK_STRING, yymsp[0].minor.yy0);
-  if( p ){
-    tdsqlite3ExprIdToTrueFalse(p);
-    testcase( p->op==TK_TRUEFALSE && tdsqlite3ExprTruthValue(p) );
-  }
-    tdsqlite3AddDefaultValue(pParse,p,yymsp[0].minor.yy0.z,yymsp[0].minor.yy0.z+yymsp[0].minor.yy0.n);
-}
-        break;
-      case 36: /* ccons ::= NOT NULL onconf */
-{tdsqlite3AddNotNull(pParse, yymsp[0].minor.yy192);}
-        break;
-      case 37: /* ccons ::= PRIMARY KEY sortorder onconf autoinc */
-{tdsqlite3AddPrimaryKey(pParse,0,yymsp[-1].minor.yy192,yymsp[0].minor.yy192,yymsp[-2].minor.yy192);}
-        break;
-      case 38: /* ccons ::= UNIQUE onconf */
-{tdsqlite3CreateIndex(pParse,0,0,0,0,yymsp[0].minor.yy192,0,0,0,0,
-                                   SQLITE_IDXTYPE_UNIQUE);}
-        break;
-      case 39: /* ccons ::= CHECK LP expr RP */
-{tdsqlite3AddCheckConstraint(pParse,yymsp[-1].minor.yy202);}
-        break;
-      case 40: /* ccons ::= REFERENCES nm eidlist_opt refargs */
-{tdsqlite3CreateForeignKey(pParse,0,&yymsp[-2].minor.yy0,yymsp[-1].minor.yy242,yymsp[0].minor.yy192);}
-        break;
-      case 41: /* ccons ::= defer_subclause */
-{tdsqlite3DeferForeignKey(pParse,yymsp[0].minor.yy192);}
-        break;
-      case 42: /* ccons ::= COLLATE ID|STRING */
-{tdsqlite3AddCollateType(pParse, &yymsp[0].minor.yy0);}
-        break;
-      case 43: /* generated ::= LP expr RP */
-{tdsqlite3AddGenerated(pParse,yymsp[-1].minor.yy202,0);}
-        break;
-      case 44: /* generated ::= LP expr RP ID */
-{tdsqlite3AddGenerated(pParse,yymsp[-2].minor.yy202,&yymsp[0].minor.yy0);}
-        break;
-      case 47: /* refargs ::= */
-{ yymsp[1].minor.yy192 = OE_None*0x0101; /* EV: R-19803-45884 */}
-        break;
-      case 48: /* refargs ::= refargs refarg */
-{ yymsp[-1].minor.yy192 = (yymsp[-1].minor.yy192 & ~yymsp[0].minor.yy207.mask) | yymsp[0].minor.yy207.value; }
-        break;
-      case 49: /* refarg ::= MATCH nm */
-{ yymsp[-1].minor.yy207.value = 0;     yymsp[-1].minor.yy207.mask = 0x000000; }
-        break;
-      case 50: /* refarg ::= ON INSERT refact */
-{ yymsp[-2].minor.yy207.value = 0;     yymsp[-2].minor.yy207.mask = 0x000000; }
-        break;
-      case 51: /* refarg ::= ON DELETE refact */
-{ yymsp[-2].minor.yy207.value = yymsp[0].minor.yy192;     yymsp[-2].minor.yy207.mask = 0x0000ff; }
-        break;
-      case 52: /* refarg ::= ON UPDATE refact */
-{ yymsp[-2].minor.yy207.value = yymsp[0].minor.yy192<<8;  yymsp[-2].minor.yy207.mask = 0x00ff00; }
-        break;
-      case 53: /* refact ::= SET NULL */
-{ yymsp[-1].minor.yy192 = OE_SetNull;  /* EV: R-33326-45252 */}
-        break;
-      case 54: /* refact ::= SET DEFAULT */
-{ yymsp[-1].minor.yy192 = OE_SetDflt;  /* EV: R-33326-45252 */}
-        break;
-      case 55: /* refact ::= CASCADE */
-{ yymsp[0].minor.yy192 = OE_Cascade;  /* EV: R-33326-45252 */}
-        break;
-      case 56: /* refact ::= RESTRICT */
-{ yymsp[0].minor.yy192 = OE_Restrict; /* EV: R-33326-45252 */}
-        break;
-      case 57: /* refact ::= NO ACTION */
-{ yymsp[-1].minor.yy192 = OE_None;     /* EV: R-33326-45252 */}
-        break;
-      case 58: /* defer_subclause ::= NOT DEFERRABLE init_deferred_pred_opt */
-{yymsp[-2].minor.yy192 = 0;}
-        break;
-      case 59: /* defer_subclause ::= DEFERRABLE init_deferred_pred_opt */
-      case 74: /* orconf ::= OR resolvetype */ yytestcase(yyruleno==74);
-      case 162: /* insert_cmd ::= INSERT orconf */ yytestcase(yyruleno==162);
-{yymsp[-1].minor.yy192 = yymsp[0].minor.yy192;}
-        break;
-      case 61: /* init_deferred_pred_opt ::= INITIALLY DEFERRED */
-      case 78: /* ifexists ::= IF EXISTS */ yytestcase(yyruleno==78);
-      case 204: /* between_op ::= NOT BETWEEN */ yytestcase(yyruleno==204);
-      case 207: /* in_op ::= NOT IN */ yytestcase(yyruleno==207);
-      case 233: /* collate ::= COLLATE ID|STRING */ yytestcase(yyruleno==233);
-{yymsp[-1].minor.yy192 = 1;}
-        break;
-      case 62: /* init_deferred_pred_opt ::= INITIALLY IMMEDIATE */
-{yymsp[-1].minor.yy192 = 0;}
-        break;
-      case 64: /* tconscomma ::= COMMA */
-{pParse->constraintName.n = 0;}
-        break;
-      case 66: /* tcons ::= PRIMARY KEY LP sortlist autoinc RP onconf */
-{tdsqlite3AddPrimaryKey(pParse,yymsp[-3].minor.yy242,yymsp[0].minor.yy192,yymsp[-2].minor.yy192,0);}
-        break;
-      case 67: /* tcons ::= UNIQUE LP sortlist RP onconf */
-{tdsqlite3CreateIndex(pParse,0,0,0,yymsp[-2].minor.yy242,yymsp[0].minor.yy192,0,0,0,0,
-                                       SQLITE_IDXTYPE_UNIQUE);}
-        break;
-      case 68: /* tcons ::= CHECK LP expr RP onconf */
-{tdsqlite3AddCheckConstraint(pParse,yymsp[-2].minor.yy202);}
-        break;
-      case 69: /* tcons ::= FOREIGN KEY LP eidlist RP REFERENCES nm eidlist_opt refargs defer_subclause_opt */
-{
-    tdsqlite3CreateForeignKey(pParse, yymsp[-6].minor.yy242, &yymsp[-3].minor.yy0, yymsp[-2].minor.yy242, yymsp[-1].minor.yy192);
-    tdsqlite3DeferForeignKey(pParse, yymsp[0].minor.yy192);
-}
-        break;
-      case 71: /* onconf ::= */
-      case 73: /* orconf ::= */ yytestcase(yyruleno==73);
-{yymsp[1].minor.yy192 = OE_Default;}
-        break;
-      case 72: /* onconf ::= ON CONFLICT resolvetype */
-{yymsp[-2].minor.yy192 = yymsp[0].minor.yy192;}
-        break;
-      case 75: /* resolvetype ::= IGNORE */
-{yymsp[0].minor.yy192 = OE_Ignore;}
-        break;
-      case 76: /* resolvetype ::= REPLACE */
-      case 163: /* insert_cmd ::= REPLACE */ yytestcase(yyruleno==163);
-{yymsp[0].minor.yy192 = OE_Replace;}
-        break;
-      case 77: /* cmd ::= DROP TABLE ifexists fullname */
-{
-  tdsqlite3DropTable(pParse, yymsp[0].minor.yy47, 0, yymsp[-1].minor.yy192);
-}
-        break;
-      case 80: /* cmd ::= createkw temp VIEW ifnotexists nm dbnm eidlist_opt AS select */
-{
-  tdsqlite3CreateView(pParse, &yymsp[-8].minor.yy0, &yymsp[-4].minor.yy0, &yymsp[-3].minor.yy0, yymsp[-2].minor.yy242, yymsp[0].minor.yy539, yymsp[-7].minor.yy192, yymsp[-5].minor.yy192);
-}
-        break;
-      case 81: /* cmd ::= DROP VIEW ifexists fullname */
-{
-  tdsqlite3DropTable(pParse, yymsp[0].minor.yy47, 1, yymsp[-1].minor.yy192);
-}
-        break;
-      case 82: /* cmd ::= select */
-{
-  SelectDest dest = {SRT_Output, 0, 0, 0, 0, 0};
-  tdsqlite3Select(pParse, yymsp[0].minor.yy539, &dest);
-  tdsqlite3SelectDelete(pParse->db, yymsp[0].minor.yy539);
-}
-        break;
-      case 83: /* select ::= WITH wqlist selectnowith */
-{
-  Select *p = yymsp[0].minor.yy539;
-  if( p ){
-    p->pWith = yymsp[-1].minor.yy131;
-    parserDoubleLinkSelect(pParse, p);
-  }else{
-    tdsqlite3WithDelete(pParse->db, yymsp[-1].minor.yy131);
-  }
-  yymsp[-2].minor.yy539 = p;
-}
-        break;
-      case 84: /* select ::= WITH RECURSIVE wqlist selectnowith */
-{
-  Select *p = yymsp[0].minor.yy539;
-  if( p ){
-    p->pWith = yymsp[-1].minor.yy131;
-    parserDoubleLinkSelect(pParse, p);
-  }else{
-    tdsqlite3WithDelete(pParse->db, yymsp[-1].minor.yy131);
-  }
-  yymsp[-3].minor.yy539 = p;
-}
-        break;
-      case 85: /* select ::= selectnowith */
-{
-  Select *p = yymsp[0].minor.yy539;
-  if( p ){
-    parserDoubleLinkSelect(pParse, p);
-  }
-  yymsp[0].minor.yy539 = p; /*A-overwrites-X*/
-}
-        break;
-      case 86: /* selectnowith ::= selectnowith multiselect_op oneselect */
-{
-  Select *pRhs = yymsp[0].minor.yy539;
-  Select *pLhs = yymsp[-2].minor.yy539;
-  if( pRhs && pRhs->pPrior ){
-    SrcList *pFrom;
-    Token x;
-    x.n = 0;
-    parserDoubleLinkSelect(pParse, pRhs);
-    pFrom = tdsqlite3SrcListAppendFromTerm(pParse,0,0,0,&x,pRhs,0,0);
-    pRhs = tdsqlite3SelectNew(pParse,0,pFrom,0,0,0,0,0,0);
-  }
-  if( pRhs ){
-    pRhs->op = (u8)yymsp[-1].minor.yy192;
-    pRhs->pPrior = pLhs;
-    if( ALWAYS(pLhs) ) pLhs->selFlags &= ~SF_MultiValue;
-    pRhs->selFlags &= ~SF_MultiValue;
-    if( yymsp[-1].minor.yy192!=TK_ALL ) pParse->hasCompound = 1;
-  }else{
-    tdsqlite3SelectDelete(pParse->db, pLhs);
-  }
-  yymsp[-2].minor.yy539 = pRhs;
-}
-        break;
-      case 87: /* multiselect_op ::= UNION */
-      case 89: /* multiselect_op ::= EXCEPT|INTERSECT */ yytestcase(yyruleno==89);
-{yymsp[0].minor.yy192 = yymsp[0].major; /*A-overwrites-OP*/}
-        break;
-      case 88: /* multiselect_op ::= UNION ALL */
-{yymsp[-1].minor.yy192 = TK_ALL;}
-        break;
-      case 90: /* oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt orderby_opt limit_opt */
-{
-  yymsp[-8].minor.yy539 = tdsqlite3SelectNew(pParse,yymsp[-6].minor.yy242,yymsp[-5].minor.yy47,yymsp[-4].minor.yy202,yymsp[-3].minor.yy242,yymsp[-2].minor.yy202,yymsp[-1].minor.yy242,yymsp[-7].minor.yy192,yymsp[0].minor.yy202);
-}
-        break;
-      case 91: /* oneselect ::= SELECT distinct selcollist from where_opt groupby_opt having_opt window_clause orderby_opt limit_opt */
-{
-  yymsp[-9].minor.yy539 = tdsqlite3SelectNew(pParse,yymsp[-7].minor.yy242,yymsp[-6].minor.yy47,yymsp[-5].minor.yy202,yymsp[-4].minor.yy242,yymsp[-3].minor.yy202,yymsp[-1].minor.yy242,yymsp[-8].minor.yy192,yymsp[0].minor.yy202);
-  if( yymsp[-9].minor.yy539 ){
-    yymsp[-9].minor.yy539->pWinDefn = yymsp[-2].minor.yy303;
-  }else{
-    tdsqlite3WindowListDelete(pParse->db, yymsp[-2].minor.yy303);
-  }
-}
-        break;
-      case 92: /* values ::= VALUES LP nexprlist RP */
-{
-  yymsp[-3].minor.yy539 = tdsqlite3SelectNew(pParse,yymsp[-1].minor.yy242,0,0,0,0,0,SF_Values,0);
-}
-        break;
-      case 93: /* values ::= values COMMA LP nexprlist RP */
-{
-  Select *pRight, *pLeft = yymsp[-4].minor.yy539;
-  pRight = tdsqlite3SelectNew(pParse,yymsp[-1].minor.yy242,0,0,0,0,0,SF_Values|SF_MultiValue,0);
-  if( ALWAYS(pLeft) ) pLeft->selFlags &= ~SF_MultiValue;
-  if( pRight ){
-    pRight->op = TK_ALL;
-    pRight->pPrior = pLeft;
-    yymsp[-4].minor.yy539 = pRight;
-  }else{
-    yymsp[-4].minor.yy539 = pLeft;
-  }
-}
-        break;
-      case 94: /* distinct ::= DISTINCT */
-{yymsp[0].minor.yy192 = SF_Distinct;}
-        break;
-      case 95: /* distinct ::= ALL */
-{yymsp[0].minor.yy192 = SF_All;}
-        break;
-      case 97: /* sclp ::= */
-      case 130: /* orderby_opt ::= */ yytestcase(yyruleno==130);
-      case 140: /* groupby_opt ::= */ yytestcase(yyruleno==140);
-      case 220: /* exprlist ::= */ yytestcase(yyruleno==220);
-      case 223: /* paren_exprlist ::= */ yytestcase(yyruleno==223);
-      case 228: /* eidlist_opt ::= */ yytestcase(yyruleno==228);
-{yymsp[1].minor.yy242 = 0;}
-        break;
-      case 98: /* selcollist ::= sclp scanpt expr scanpt as */
-{
-   yymsp[-4].minor.yy242 = tdsqlite3ExprListAppend(pParse, yymsp[-4].minor.yy242, yymsp[-2].minor.yy202);
-   if( yymsp[0].minor.yy0.n>0 ) tdsqlite3ExprListSetName(pParse, yymsp[-4].minor.yy242, &yymsp[0].minor.yy0, 1);
-   tdsqlite3ExprListSetSpan(pParse,yymsp[-4].minor.yy242,yymsp[-3].minor.yy436,yymsp[-1].minor.yy436);
-}
-        break;
-      case 99: /* selcollist ::= sclp scanpt STAR */
-{
-  Expr *p = tdsqlite3Expr(pParse->db, TK_ASTERISK, 0);
-  yymsp[-2].minor.yy242 = tdsqlite3ExprListAppend(pParse, yymsp[-2].minor.yy242, p);
-}
-        break;
-      case 100: /* selcollist ::= sclp scanpt nm DOT STAR */
-{
-  Expr *pRight = tdsqlite3PExpr(pParse, TK_ASTERISK, 0, 0);
-  Expr *pLeft = tdsqlite3ExprAlloc(pParse->db, TK_ID, &yymsp[-2].minor.yy0, 1);
-  Expr *pDot = tdsqlite3PExpr(pParse, TK_DOT, pLeft, pRight);
-  yymsp[-4].minor.yy242 = tdsqlite3ExprListAppend(pParse,yymsp[-4].minor.yy242, pDot);
-}
-        break;
-      case 101: /* as ::= AS nm */
-      case 112: /* dbnm ::= DOT nm */ yytestcase(yyruleno==112);
-      case 244: /* plus_num ::= PLUS INTEGER|FLOAT */ yytestcase(yyruleno==244);
-      case 245: /* minus_num ::= MINUS INTEGER|FLOAT */ yytestcase(yyruleno==245);
-{yymsp[-1].minor.yy0 = yymsp[0].minor.yy0;}
-        break;
-      case 103: /* from ::= */
-{yymsp[1].minor.yy47 = tdsqlite3DbMallocZero(pParse->db, sizeof(*yymsp[1].minor.yy47));}
-        break;
-      case 104: /* from ::= FROM seltablist */
-{
-  yymsp[-1].minor.yy47 = yymsp[0].minor.yy47;
-  tdsqlite3SrcListShiftJoinType(yymsp[-1].minor.yy47);
-}
-        break;
-      case 105: /* stl_prefix ::= seltablist joinop */
-{
-   if( ALWAYS(yymsp[-1].minor.yy47 && yymsp[-1].minor.yy47->nSrc>0) ) yymsp[-1].minor.yy47->a[yymsp[-1].minor.yy47->nSrc-1].fg.jointype = (u8)yymsp[0].minor.yy192;
-}
-        break;
-      case 106: /* stl_prefix ::= */
-{yymsp[1].minor.yy47 = 0;}
-        break;
-      case 107: /* seltablist ::= stl_prefix nm dbnm as indexed_opt on_opt using_opt */
-{
-  yymsp[-6].minor.yy47 = tdsqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy47,&yymsp[-5].minor.yy0,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,0,yymsp[-1].minor.yy202,yymsp[0].minor.yy600);
-  tdsqlite3SrcListIndexedBy(pParse, yymsp[-6].minor.yy47, &yymsp[-2].minor.yy0);
-}
-        break;
-      case 108: /* seltablist ::= stl_prefix nm dbnm LP exprlist RP as on_opt using_opt */
-{
-  yymsp[-8].minor.yy47 = tdsqlite3SrcListAppendFromTerm(pParse,yymsp[-8].minor.yy47,&yymsp[-7].minor.yy0,&yymsp[-6].minor.yy0,&yymsp[-2].minor.yy0,0,yymsp[-1].minor.yy202,yymsp[0].minor.yy600);
-  tdsqlite3SrcListFuncArgs(pParse, yymsp[-8].minor.yy47, yymsp[-4].minor.yy242);
-}
-        break;
-      case 109: /* seltablist ::= stl_prefix LP select RP as on_opt using_opt */
-{
-    yymsp[-6].minor.yy47 = tdsqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy47,0,0,&yymsp[-2].minor.yy0,yymsp[-4].minor.yy539,yymsp[-1].minor.yy202,yymsp[0].minor.yy600);
-  }
-        break;
-      case 110: /* seltablist ::= stl_prefix LP seltablist RP as on_opt using_opt */
-{
-    if( yymsp[-6].minor.yy47==0 && yymsp[-2].minor.yy0.n==0 && yymsp[-1].minor.yy202==0 && yymsp[0].minor.yy600==0 ){
-      yymsp[-6].minor.yy47 = yymsp[-4].minor.yy47;
-    }else if( yymsp[-4].minor.yy47->nSrc==1 ){
-      yymsp[-6].minor.yy47 = tdsqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy47,0,0,&yymsp[-2].minor.yy0,0,yymsp[-1].minor.yy202,yymsp[0].minor.yy600);
-      if( yymsp[-6].minor.yy47 ){
-        struct SrcList_item *pNew = &yymsp[-6].minor.yy47->a[yymsp[-6].minor.yy47->nSrc-1];
-        struct SrcList_item *pOld = yymsp[-4].minor.yy47->a;
-        pNew->zName = pOld->zName;
-        pNew->zDatabase = pOld->zDatabase;
-        pNew->pSelect = pOld->pSelect;
-        if( pOld->fg.isTabFunc ){
-          pNew->u1.pFuncArg = pOld->u1.pFuncArg;
-          pOld->u1.pFuncArg = 0;
-          pOld->fg.isTabFunc = 0;
-          pNew->fg.isTabFunc = 1;
-        }
-        pOld->zName = pOld->zDatabase = 0;
-        pOld->pSelect = 0;
-      }
-      tdsqlite3SrcListDelete(pParse->db, yymsp[-4].minor.yy47);
-    }else{
-      Select *pSubquery;
-      tdsqlite3SrcListShiftJoinType(yymsp[-4].minor.yy47);
-      pSubquery = tdsqlite3SelectNew(pParse,0,yymsp[-4].minor.yy47,0,0,0,0,SF_NestedFrom,0);
-      yymsp[-6].minor.yy47 = tdsqlite3SrcListAppendFromTerm(pParse,yymsp[-6].minor.yy47,0,0,&yymsp[-2].minor.yy0,pSubquery,yymsp[-1].minor.yy202,yymsp[0].minor.yy600);
-    }
-  }
-        break;
-      case 111: /* dbnm ::= */
-      case 125: /* indexed_opt ::= */ yytestcase(yyruleno==125);
-{yymsp[1].minor.yy0.z=0; yymsp[1].minor.yy0.n=0;}
-        break;
-      case 113: /* fullname ::= nm */
-{
-  yylhsminor.yy47 = tdsqlite3SrcListAppend(pParse,0,&yymsp[0].minor.yy0,0);
-  if( IN_RENAME_OBJECT && yylhsminor.yy47 ) tdsqlite3RenameTokenMap(pParse, yylhsminor.yy47->a[0].zName, &yymsp[0].minor.yy0);
-}
-  yymsp[0].minor.yy47 = yylhsminor.yy47;
-        break;
-      case 114: /* fullname ::= nm DOT nm */
-{
-  yylhsminor.yy47 = tdsqlite3SrcListAppend(pParse,0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0);
-  if( IN_RENAME_OBJECT && yylhsminor.yy47 ) tdsqlite3RenameTokenMap(pParse, yylhsminor.yy47->a[0].zName, &yymsp[0].minor.yy0);
-}
-  yymsp[-2].minor.yy47 = yylhsminor.yy47;
-        break;
-      case 115: /* xfullname ::= nm */
-{yymsp[0].minor.yy47 = tdsqlite3SrcListAppend(pParse,0,&yymsp[0].minor.yy0,0); /*A-overwrites-X*/}
-        break;
-      case 116: /* xfullname ::= nm DOT nm */
-{yymsp[-2].minor.yy47 = tdsqlite3SrcListAppend(pParse,0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0); /*A-overwrites-X*/}
-        break;
-      case 117: /* xfullname ::= nm DOT nm AS nm */
-{
-   yymsp[-4].minor.yy47 = tdsqlite3SrcListAppend(pParse,0,&yymsp[-4].minor.yy0,&yymsp[-2].minor.yy0); /*A-overwrites-X*/
-   if( yymsp[-4].minor.yy47 ) yymsp[-4].minor.yy47->a[0].zAlias = tdsqlite3NameFromToken(pParse->db, &yymsp[0].minor.yy0);
-}
-        break;
-      case 118: /* xfullname ::= nm AS nm */
-{  
-   yymsp[-2].minor.yy47 = tdsqlite3SrcListAppend(pParse,0,&yymsp[-2].minor.yy0,0); /*A-overwrites-X*/
-   if( yymsp[-2].minor.yy47 ) yymsp[-2].minor.yy47->a[0].zAlias = tdsqlite3NameFromToken(pParse->db, &yymsp[0].minor.yy0);
-}
-        break;
-      case 119: /* joinop ::= COMMA|JOIN */
-{ yymsp[0].minor.yy192 = JT_INNER; }
-        break;
-      case 120: /* joinop ::= JOIN_KW JOIN */
-{yymsp[-1].minor.yy192 = tdsqlite3JoinType(pParse,&yymsp[-1].minor.yy0,0,0);  /*X-overwrites-A*/}
-        break;
-      case 121: /* joinop ::= JOIN_KW nm JOIN */
-{yymsp[-2].minor.yy192 = tdsqlite3JoinType(pParse,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0,0); /*X-overwrites-A*/}
-        break;
-      case 122: /* joinop ::= JOIN_KW nm nm JOIN */
-{yymsp[-3].minor.yy192 = tdsqlite3JoinType(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0);/*X-overwrites-A*/}
-        break;
-      case 123: /* on_opt ::= ON expr */
-      case 143: /* having_opt ::= HAVING expr */ yytestcase(yyruleno==143);
-      case 150: /* where_opt ::= WHERE expr */ yytestcase(yyruleno==150);
-      case 216: /* case_else ::= ELSE expr */ yytestcase(yyruleno==216);
-      case 237: /* vinto ::= INTO expr */ yytestcase(yyruleno==237);
-{yymsp[-1].minor.yy202 = yymsp[0].minor.yy202;}
-        break;
-      case 124: /* on_opt ::= */
-      case 142: /* having_opt ::= */ yytestcase(yyruleno==142);
-      case 144: /* limit_opt ::= */ yytestcase(yyruleno==144);
-      case 149: /* where_opt ::= */ yytestcase(yyruleno==149);
-      case 217: /* case_else ::= */ yytestcase(yyruleno==217);
-      case 219: /* case_operand ::= */ yytestcase(yyruleno==219);
-      case 238: /* vinto ::= */ yytestcase(yyruleno==238);
-{yymsp[1].minor.yy202 = 0;}
-        break;
-      case 126: /* indexed_opt ::= INDEXED BY nm */
-{yymsp[-2].minor.yy0 = yymsp[0].minor.yy0;}
-        break;
-      case 127: /* indexed_opt ::= NOT INDEXED */
-{yymsp[-1].minor.yy0.z=0; yymsp[-1].minor.yy0.n=1;}
-        break;
-      case 128: /* using_opt ::= USING LP idlist RP */
-{yymsp[-3].minor.yy600 = yymsp[-1].minor.yy600;}
-        break;
-      case 129: /* using_opt ::= */
-      case 164: /* idlist_opt ::= */ yytestcase(yyruleno==164);
-{yymsp[1].minor.yy600 = 0;}
-        break;
-      case 131: /* orderby_opt ::= ORDER BY sortlist */
-      case 141: /* groupby_opt ::= GROUP BY nexprlist */ yytestcase(yyruleno==141);
-{yymsp[-2].minor.yy242 = yymsp[0].minor.yy242;}
-        break;
-      case 132: /* sortlist ::= sortlist COMMA expr sortorder nulls */
-{
-  yymsp[-4].minor.yy242 = tdsqlite3ExprListAppend(pParse,yymsp[-4].minor.yy242,yymsp[-2].minor.yy202);
-  tdsqlite3ExprListSetSortOrder(yymsp[-4].minor.yy242,yymsp[-1].minor.yy192,yymsp[0].minor.yy192);
-}
-        break;
-      case 133: /* sortlist ::= expr sortorder nulls */
-{
-  yymsp[-2].minor.yy242 = tdsqlite3ExprListAppend(pParse,0,yymsp[-2].minor.yy202); /*A-overwrites-Y*/
-  tdsqlite3ExprListSetSortOrder(yymsp[-2].minor.yy242,yymsp[-1].minor.yy192,yymsp[0].minor.yy192);
-}
-        break;
-      case 134: /* sortorder ::= ASC */
-{yymsp[0].minor.yy192 = SQLITE_SO_ASC;}
-        break;
-      case 135: /* sortorder ::= DESC */
-{yymsp[0].minor.yy192 = SQLITE_SO_DESC;}
-        break;
-      case 136: /* sortorder ::= */
-      case 139: /* nulls ::= */ yytestcase(yyruleno==139);
-{yymsp[1].minor.yy192 = SQLITE_SO_UNDEFINED;}
-        break;
-      case 137: /* nulls ::= NULLS FIRST */
-{yymsp[-1].minor.yy192 = SQLITE_SO_ASC;}
-        break;
-      case 138: /* nulls ::= NULLS LAST */
-{yymsp[-1].minor.yy192 = SQLITE_SO_DESC;}
-        break;
-      case 145: /* limit_opt ::= LIMIT expr */
-{yymsp[-1].minor.yy202 = tdsqlite3PExpr(pParse,TK_LIMIT,yymsp[0].minor.yy202,0);}
-        break;
-      case 146: /* limit_opt ::= LIMIT expr OFFSET expr */
-{yymsp[-3].minor.yy202 = tdsqlite3PExpr(pParse,TK_LIMIT,yymsp[-2].minor.yy202,yymsp[0].minor.yy202);}
-        break;
-      case 147: /* limit_opt ::= LIMIT expr COMMA expr */
-{yymsp[-3].minor.yy202 = tdsqlite3PExpr(pParse,TK_LIMIT,yymsp[0].minor.yy202,yymsp[-2].minor.yy202);}
-        break;
-      case 148: /* cmd ::= with DELETE FROM xfullname indexed_opt where_opt */
-{
-  tdsqlite3SrcListIndexedBy(pParse, yymsp[-2].minor.yy47, &yymsp[-1].minor.yy0);
-  tdsqlite3DeleteFrom(pParse,yymsp[-2].minor.yy47,yymsp[0].minor.yy202,0,0);
-}
-        break;
-      case 151: /* cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt */
-{
-  tdsqlite3SrcListIndexedBy(pParse, yymsp[-4].minor.yy47, &yymsp[-3].minor.yy0);
-  tdsqlite3ExprListCheckLength(pParse,yymsp[-1].minor.yy242,"set list"); 
-  tdsqlite3Update(pParse,yymsp[-4].minor.yy47,yymsp[-1].minor.yy242,yymsp[0].minor.yy202,yymsp[-5].minor.yy192,0,0,0);
-}
-        break;
-      case 152: /* setlist ::= setlist COMMA nm EQ expr */
-{
-  yymsp[-4].minor.yy242 = tdsqlite3ExprListAppend(pParse, yymsp[-4].minor.yy242, yymsp[0].minor.yy202);
-  tdsqlite3ExprListSetName(pParse, yymsp[-4].minor.yy242, &yymsp[-2].minor.yy0, 1);
-}
-        break;
-      case 153: /* setlist ::= setlist COMMA LP idlist RP EQ expr */
-{
-  yymsp[-6].minor.yy242 = tdsqlite3ExprListAppendVector(pParse, yymsp[-6].minor.yy242, yymsp[-3].minor.yy600, yymsp[0].minor.yy202);
-}
-        break;
-      case 154: /* setlist ::= nm EQ expr */
-{
-  yylhsminor.yy242 = tdsqlite3ExprListAppend(pParse, 0, yymsp[0].minor.yy202);
-  tdsqlite3ExprListSetName(pParse, yylhsminor.yy242, &yymsp[-2].minor.yy0, 1);
-}
-  yymsp[-2].minor.yy242 = yylhsminor.yy242;
-        break;
-      case 155: /* setlist ::= LP idlist RP EQ expr */
-{
-  yymsp[-4].minor.yy242 = tdsqlite3ExprListAppendVector(pParse, 0, yymsp[-3].minor.yy600, yymsp[0].minor.yy202);
-}
-        break;
-      case 156: /* cmd ::= with insert_cmd INTO xfullname idlist_opt select upsert */
-{
-  tdsqlite3Insert(pParse, yymsp[-3].minor.yy47, yymsp[-1].minor.yy539, yymsp[-2].minor.yy600, yymsp[-5].minor.yy192, yymsp[0].minor.yy318);
-}
-        break;
-      case 157: /* cmd ::= with insert_cmd INTO xfullname idlist_opt DEFAULT VALUES */
-{
-  tdsqlite3Insert(pParse, yymsp[-3].minor.yy47, 0, yymsp[-2].minor.yy600, yymsp[-5].minor.yy192, 0);
-}
-        break;
-      case 158: /* upsert ::= */
-{ yymsp[1].minor.yy318 = 0; }
-        break;
-      case 159: /* upsert ::= ON CONFLICT LP sortlist RP where_opt DO UPDATE SET setlist where_opt */
-{ yymsp[-10].minor.yy318 = tdsqlite3UpsertNew(pParse->db,yymsp[-7].minor.yy242,yymsp[-5].minor.yy202,yymsp[-1].minor.yy242,yymsp[0].minor.yy202);}
-        break;
-      case 160: /* upsert ::= ON CONFLICT LP sortlist RP where_opt DO NOTHING */
-{ yymsp[-7].minor.yy318 = tdsqlite3UpsertNew(pParse->db,yymsp[-4].minor.yy242,yymsp[-2].minor.yy202,0,0); }
-        break;
-      case 161: /* upsert ::= ON CONFLICT DO NOTHING */
-{ yymsp[-3].minor.yy318 = tdsqlite3UpsertNew(pParse->db,0,0,0,0); }
-        break;
-      case 165: /* idlist_opt ::= LP idlist RP */
-{yymsp[-2].minor.yy600 = yymsp[-1].minor.yy600;}
-        break;
-      case 166: /* idlist ::= idlist COMMA nm */
-{yymsp[-2].minor.yy600 = tdsqlite3IdListAppend(pParse,yymsp[-2].minor.yy600,&yymsp[0].minor.yy0);}
-        break;
-      case 167: /* idlist ::= nm */
-{yymsp[0].minor.yy600 = tdsqlite3IdListAppend(pParse,0,&yymsp[0].minor.yy0); /*A-overwrites-Y*/}
-        break;
-      case 168: /* expr ::= LP expr RP */
-{yymsp[-2].minor.yy202 = yymsp[-1].minor.yy202;}
-        break;
-      case 169: /* expr ::= ID|INDEXED */
-      case 170: /* expr ::= JOIN_KW */ yytestcase(yyruleno==170);
-{yymsp[0].minor.yy202=tokenExpr(pParse,TK_ID,yymsp[0].minor.yy0); /*A-overwrites-X*/}
-        break;
-      case 171: /* expr ::= nm DOT nm */
-{
-  Expr *temp1 = tdsqlite3ExprAlloc(pParse->db, TK_ID, &yymsp[-2].minor.yy0, 1);
-  Expr *temp2 = tdsqlite3ExprAlloc(pParse->db, TK_ID, &yymsp[0].minor.yy0, 1);
-  if( IN_RENAME_OBJECT ){
-    tdsqlite3RenameTokenMap(pParse, (void*)temp2, &yymsp[0].minor.yy0);
-    tdsqlite3RenameTokenMap(pParse, (void*)temp1, &yymsp[-2].minor.yy0);
-  }
-  yylhsminor.yy202 = tdsqlite3PExpr(pParse, TK_DOT, temp1, temp2);
-}
-  yymsp[-2].minor.yy202 = yylhsminor.yy202;
-        break;
-      case 172: /* expr ::= nm DOT nm DOT nm */
-{
-  Expr *temp1 = tdsqlite3ExprAlloc(pParse->db, TK_ID, &yymsp[-4].minor.yy0, 1);
-  Expr *temp2 = tdsqlite3ExprAlloc(pParse->db, TK_ID, &yymsp[-2].minor.yy0, 1);
-  Expr *temp3 = tdsqlite3ExprAlloc(pParse->db, TK_ID, &yymsp[0].minor.yy0, 1);
-  Expr *temp4 = tdsqlite3PExpr(pParse, TK_DOT, temp2, temp3);
-  if( IN_RENAME_OBJECT ){
-    tdsqlite3RenameTokenMap(pParse, (void*)temp3, &yymsp[0].minor.yy0);
-    tdsqlite3RenameTokenMap(pParse, (void*)temp2, &yymsp[-2].minor.yy0);
-  }
-  yylhsminor.yy202 = tdsqlite3PExpr(pParse, TK_DOT, temp1, temp4);
-}
-  yymsp[-4].minor.yy202 = yylhsminor.yy202;
-        break;
-      case 173: /* term ::= NULL|FLOAT|BLOB */
-      case 174: /* term ::= STRING */ yytestcase(yyruleno==174);
-{yymsp[0].minor.yy202=tokenExpr(pParse,yymsp[0].major,yymsp[0].minor.yy0); /*A-overwrites-X*/}
-        break;
-      case 175: /* term ::= INTEGER */
-{
-  yylhsminor.yy202 = tdsqlite3ExprAlloc(pParse->db, TK_INTEGER, &yymsp[0].minor.yy0, 1);
-}
-  yymsp[0].minor.yy202 = yylhsminor.yy202;
-        break;
-      case 176: /* expr ::= VARIABLE */
-{
-  if( !(yymsp[0].minor.yy0.z[0]=='#' && tdsqlite3Isdigit(yymsp[0].minor.yy0.z[1])) ){
-    u32 n = yymsp[0].minor.yy0.n;
-    yymsp[0].minor.yy202 = tokenExpr(pParse, TK_VARIABLE, yymsp[0].minor.yy0);
-    tdsqlite3ExprAssignVarNumber(pParse, yymsp[0].minor.yy202, n);
-  }else{
-    /* When doing a nested parse, one can include terms in an expression
-    ** that look like this:   #1 #2 ...  These terms refer to registers
-    ** in the virtual machine.  #N is the N-th register. */
-    Token t = yymsp[0].minor.yy0; /*A-overwrites-X*/
-    assert( t.n>=2 );
-    if( pParse->nested==0 ){
-      tdsqlite3ErrorMsg(pParse, "near \"%T\": syntax error", &t);
-      yymsp[0].minor.yy202 = 0;
-    }else{
-      yymsp[0].minor.yy202 = tdsqlite3PExpr(pParse, TK_REGISTER, 0, 0);
-      if( yymsp[0].minor.yy202 ) tdsqlite3GetInt32(&t.z[1], &yymsp[0].minor.yy202->iTable);
-    }
-  }
-}
-        break;
-      case 177: /* expr ::= expr COLLATE ID|STRING */
-{
-  yymsp[-2].minor.yy202 = tdsqlite3ExprAddCollateToken(pParse, yymsp[-2].minor.yy202, &yymsp[0].minor.yy0, 1);
-}
-        break;
-      case 178: /* expr ::= CAST LP expr AS typetoken RP */
-{
-  yymsp[-5].minor.yy202 = tdsqlite3ExprAlloc(pParse->db, TK_CAST, &yymsp[-1].minor.yy0, 1);
-  tdsqlite3ExprAttachSubtrees(pParse->db, yymsp[-5].minor.yy202, yymsp[-3].minor.yy202, 0);
-}
-        break;
-      case 179: /* expr ::= ID|INDEXED LP distinct exprlist RP */
-{
-  yylhsminor.yy202 = tdsqlite3ExprFunction(pParse, yymsp[-1].minor.yy242, &yymsp[-4].minor.yy0, yymsp[-2].minor.yy192);
-}
-  yymsp[-4].minor.yy202 = yylhsminor.yy202;
-        break;
-      case 180: /* expr ::= ID|INDEXED LP STAR RP */
-{
-  yylhsminor.yy202 = tdsqlite3ExprFunction(pParse, 0, &yymsp[-3].minor.yy0, 0);
-}
-  yymsp[-3].minor.yy202 = yylhsminor.yy202;
-        break;
-      case 181: /* expr ::= ID|INDEXED LP distinct exprlist RP filter_over */
-{
-  yylhsminor.yy202 = tdsqlite3ExprFunction(pParse, yymsp[-2].minor.yy242, &yymsp[-5].minor.yy0, yymsp[-3].minor.yy192);
-  tdsqlite3WindowAttach(pParse, yylhsminor.yy202, yymsp[0].minor.yy303);
-}
-  yymsp[-5].minor.yy202 = yylhsminor.yy202;
-        break;
-      case 182: /* expr ::= ID|INDEXED LP STAR RP filter_over */
-{
-  yylhsminor.yy202 = tdsqlite3ExprFunction(pParse, 0, &yymsp[-4].minor.yy0, 0);
-  tdsqlite3WindowAttach(pParse, yylhsminor.yy202, yymsp[0].minor.yy303);
-}
-  yymsp[-4].minor.yy202 = yylhsminor.yy202;
-        break;
-      case 183: /* term ::= CTIME_KW */
-{
-  yylhsminor.yy202 = tdsqlite3ExprFunction(pParse, 0, &yymsp[0].minor.yy0, 0);
-}
-  yymsp[0].minor.yy202 = yylhsminor.yy202;
-        break;
-      case 184: /* expr ::= LP nexprlist COMMA expr RP */
-{
-  ExprList *pList = tdsqlite3ExprListAppend(pParse, yymsp[-3].minor.yy242, yymsp[-1].minor.yy202);
-  yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_VECTOR, 0, 0);
-  if( yymsp[-4].minor.yy202 ){
-    yymsp[-4].minor.yy202->x.pList = pList;
-    if( ALWAYS(pList->nExpr) ){
-      yymsp[-4].minor.yy202->flags |= pList->a[0].pExpr->flags & EP_Propagate;
-    }
-  }else{
-    tdsqlite3ExprListDelete(pParse->db, pList);
-  }
-}
-        break;
-      case 185: /* expr ::= expr AND expr */
-{yymsp[-2].minor.yy202=tdsqlite3ExprAnd(pParse,yymsp[-2].minor.yy202,yymsp[0].minor.yy202);}
-        break;
-      case 186: /* expr ::= expr OR expr */
-      case 187: /* expr ::= expr LT|GT|GE|LE expr */ yytestcase(yyruleno==187);
-      case 188: /* expr ::= expr EQ|NE expr */ yytestcase(yyruleno==188);
-      case 189: /* expr ::= expr BITAND|BITOR|LSHIFT|RSHIFT expr */ yytestcase(yyruleno==189);
-      case 190: /* expr ::= expr PLUS|MINUS expr */ yytestcase(yyruleno==190);
-      case 191: /* expr ::= expr STAR|SLASH|REM expr */ yytestcase(yyruleno==191);
-      case 192: /* expr ::= expr CONCAT expr */ yytestcase(yyruleno==192);
-{yymsp[-2].minor.yy202=tdsqlite3PExpr(pParse,yymsp[-1].major,yymsp[-2].minor.yy202,yymsp[0].minor.yy202);}
-        break;
-      case 193: /* likeop ::= NOT LIKE_KW|MATCH */
-{yymsp[-1].minor.yy0=yymsp[0].minor.yy0; yymsp[-1].minor.yy0.n|=0x80000000; /*yymsp[-1].minor.yy0-overwrite-yymsp[0].minor.yy0*/}
-        break;
-      case 194: /* expr ::= expr likeop expr */
-{
-  ExprList *pList;
-  int bNot = yymsp[-1].minor.yy0.n & 0x80000000;
-  yymsp[-1].minor.yy0.n &= 0x7fffffff;
-  pList = tdsqlite3ExprListAppend(pParse,0, yymsp[0].minor.yy202);
-  pList = tdsqlite3ExprListAppend(pParse,pList, yymsp[-2].minor.yy202);
-  yymsp[-2].minor.yy202 = tdsqlite3ExprFunction(pParse, pList, &yymsp[-1].minor.yy0, 0);
-  if( bNot ) yymsp[-2].minor.yy202 = tdsqlite3PExpr(pParse, TK_NOT, yymsp[-2].minor.yy202, 0);
-  if( yymsp[-2].minor.yy202 ) yymsp[-2].minor.yy202->flags |= EP_InfixFunc;
-}
-        break;
-      case 195: /* expr ::= expr likeop expr ESCAPE expr */
-{
-  ExprList *pList;
-  int bNot = yymsp[-3].minor.yy0.n & 0x80000000;
-  yymsp[-3].minor.yy0.n &= 0x7fffffff;
-  pList = tdsqlite3ExprListAppend(pParse,0, yymsp[-2].minor.yy202);
-  pList = tdsqlite3ExprListAppend(pParse,pList, yymsp[-4].minor.yy202);
-  pList = tdsqlite3ExprListAppend(pParse,pList, yymsp[0].minor.yy202);
-  yymsp[-4].minor.yy202 = tdsqlite3ExprFunction(pParse, pList, &yymsp[-3].minor.yy0, 0);
-  if( bNot ) yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_NOT, yymsp[-4].minor.yy202, 0);
-  if( yymsp[-4].minor.yy202 ) yymsp[-4].minor.yy202->flags |= EP_InfixFunc;
-}
-        break;
-      case 196: /* expr ::= expr ISNULL|NOTNULL */
-{yymsp[-1].minor.yy202 = tdsqlite3PExpr(pParse,yymsp[0].major,yymsp[-1].minor.yy202,0);}
-        break;
-      case 197: /* expr ::= expr NOT NULL */
-{yymsp[-2].minor.yy202 = tdsqlite3PExpr(pParse,TK_NOTNULL,yymsp[-2].minor.yy202,0);}
-        break;
-      case 198: /* expr ::= expr IS expr */
-{
-  yymsp[-2].minor.yy202 = tdsqlite3PExpr(pParse,TK_IS,yymsp[-2].minor.yy202,yymsp[0].minor.yy202);
-  binaryToUnaryIfNull(pParse, yymsp[0].minor.yy202, yymsp[-2].minor.yy202, TK_ISNULL);
-}
-        break;
-      case 199: /* expr ::= expr IS NOT expr */
-{
-  yymsp[-3].minor.yy202 = tdsqlite3PExpr(pParse,TK_ISNOT,yymsp[-3].minor.yy202,yymsp[0].minor.yy202);
-  binaryToUnaryIfNull(pParse, yymsp[0].minor.yy202, yymsp[-3].minor.yy202, TK_NOTNULL);
-}
-        break;
-      case 200: /* expr ::= NOT expr */
-      case 201: /* expr ::= BITNOT expr */ yytestcase(yyruleno==201);
-{yymsp[-1].minor.yy202 = tdsqlite3PExpr(pParse, yymsp[-1].major, yymsp[0].minor.yy202, 0);/*A-overwrites-B*/}
-        break;
-      case 202: /* expr ::= PLUS|MINUS expr */
-{
-  yymsp[-1].minor.yy202 = tdsqlite3PExpr(pParse, yymsp[-1].major==TK_PLUS ? TK_UPLUS : TK_UMINUS, yymsp[0].minor.yy202, 0);
-  /*A-overwrites-B*/
-}
-        break;
-      case 203: /* between_op ::= BETWEEN */
-      case 206: /* in_op ::= IN */ yytestcase(yyruleno==206);
-{yymsp[0].minor.yy192 = 0;}
-        break;
-      case 205: /* expr ::= expr between_op expr AND expr */
-{
-  ExprList *pList = tdsqlite3ExprListAppend(pParse,0, yymsp[-2].minor.yy202);
-  pList = tdsqlite3ExprListAppend(pParse,pList, yymsp[0].minor.yy202);
-  yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_BETWEEN, yymsp[-4].minor.yy202, 0);
-  if( yymsp[-4].minor.yy202 ){
-    yymsp[-4].minor.yy202->x.pList = pList;
-  }else{
-    tdsqlite3ExprListDelete(pParse->db, pList);
-  } 
-  if( yymsp[-3].minor.yy192 ) yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_NOT, yymsp[-4].minor.yy202, 0);
-}
-        break;
-      case 208: /* expr ::= expr in_op LP exprlist RP */
-{
-    if( yymsp[-1].minor.yy242==0 ){
-      /* Expressions of the form
-      **
-      **      expr1 IN ()
-      **      expr1 NOT IN ()
-      **
-      ** simplify to constants 0 (false) and 1 (true), respectively,
-      ** regardless of the value of expr1.
-      */
-      tdsqlite3ExprUnmapAndDelete(pParse, yymsp[-4].minor.yy202);
-      yymsp[-4].minor.yy202 = tdsqlite3Expr(pParse->db, TK_INTEGER, yymsp[-3].minor.yy192 ? "1" : "0");
-    }else{
-      yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy202, 0);
-      if( yymsp[-4].minor.yy202 ){
-        yymsp[-4].minor.yy202->x.pList = yymsp[-1].minor.yy242;
-        tdsqlite3ExprSetHeightAndFlags(pParse, yymsp[-4].minor.yy202);
-      }else{
-        tdsqlite3ExprListDelete(pParse->db, yymsp[-1].minor.yy242);
-      }
-      if( yymsp[-3].minor.yy192 ) yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_NOT, yymsp[-4].minor.yy202, 0);
-    }
-  }
-        break;
-      case 209: /* expr ::= LP select RP */
-{
-    yymsp[-2].minor.yy202 = tdsqlite3PExpr(pParse, TK_SELECT, 0, 0);
-    tdsqlite3PExprAddSelect(pParse, yymsp[-2].minor.yy202, yymsp[-1].minor.yy539);
-  }
-        break;
-      case 210: /* expr ::= expr in_op LP select RP */
-{
-    yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy202, 0);
-    tdsqlite3PExprAddSelect(pParse, yymsp[-4].minor.yy202, yymsp[-1].minor.yy539);
-    if( yymsp[-3].minor.yy192 ) yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_NOT, yymsp[-4].minor.yy202, 0);
-  }
-        break;
-      case 211: /* expr ::= expr in_op nm dbnm paren_exprlist */
-{
-    SrcList *pSrc = tdsqlite3SrcListAppend(pParse, 0,&yymsp[-2].minor.yy0,&yymsp[-1].minor.yy0);
-    Select *pSelect = tdsqlite3SelectNew(pParse, 0,pSrc,0,0,0,0,0,0);
-    if( yymsp[0].minor.yy242 )  tdsqlite3SrcListFuncArgs(pParse, pSelect ? pSrc : 0, yymsp[0].minor.yy242);
-    yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy202, 0);
-    tdsqlite3PExprAddSelect(pParse, yymsp[-4].minor.yy202, pSelect);
-    if( yymsp[-3].minor.yy192 ) yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_NOT, yymsp[-4].minor.yy202, 0);
-  }
-        break;
-      case 212: /* expr ::= EXISTS LP select RP */
-{
-    Expr *p;
-    p = yymsp[-3].minor.yy202 = tdsqlite3PExpr(pParse, TK_EXISTS, 0, 0);
-    tdsqlite3PExprAddSelect(pParse, p, yymsp[-1].minor.yy539);
-  }
-        break;
-      case 213: /* expr ::= CASE case_operand case_exprlist case_else END */
-{
-  yymsp[-4].minor.yy202 = tdsqlite3PExpr(pParse, TK_CASE, yymsp[-3].minor.yy202, 0);
-  if( yymsp[-4].minor.yy202 ){
-    yymsp[-4].minor.yy202->x.pList = yymsp[-1].minor.yy202 ? tdsqlite3ExprListAppend(pParse,yymsp[-2].minor.yy242,yymsp[-1].minor.yy202) : yymsp[-2].minor.yy242;
-    tdsqlite3ExprSetHeightAndFlags(pParse, yymsp[-4].minor.yy202);
-  }else{
-    tdsqlite3ExprListDelete(pParse->db, yymsp[-2].minor.yy242);
-    tdsqlite3ExprDelete(pParse->db, yymsp[-1].minor.yy202);
-  }
-}
-        break;
-      case 214: /* case_exprlist ::= case_exprlist WHEN expr THEN expr */
-{
-  yymsp[-4].minor.yy242 = tdsqlite3ExprListAppend(pParse,yymsp[-4].minor.yy242, yymsp[-2].minor.yy202);
-  yymsp[-4].minor.yy242 = tdsqlite3ExprListAppend(pParse,yymsp[-4].minor.yy242, yymsp[0].minor.yy202);
-}
-        break;
-      case 215: /* case_exprlist ::= WHEN expr THEN expr */
-{
-  yymsp[-3].minor.yy242 = tdsqlite3ExprListAppend(pParse,0, yymsp[-2].minor.yy202);
-  yymsp[-3].minor.yy242 = tdsqlite3ExprListAppend(pParse,yymsp[-3].minor.yy242, yymsp[0].minor.yy202);
-}
-        break;
-      case 218: /* case_operand ::= expr */
-{yymsp[0].minor.yy202 = yymsp[0].minor.yy202; /*A-overwrites-X*/}
-        break;
-      case 221: /* nexprlist ::= nexprlist COMMA expr */
-{yymsp[-2].minor.yy242 = tdsqlite3ExprListAppend(pParse,yymsp[-2].minor.yy242,yymsp[0].minor.yy202);}
-        break;
-      case 222: /* nexprlist ::= expr */
-{yymsp[0].minor.yy242 = tdsqlite3ExprListAppend(pParse,0,yymsp[0].minor.yy202); /*A-overwrites-Y*/}
-        break;
-      case 224: /* paren_exprlist ::= LP exprlist RP */
-      case 229: /* eidlist_opt ::= LP eidlist RP */ yytestcase(yyruleno==229);
-{yymsp[-2].minor.yy242 = yymsp[-1].minor.yy242;}
-        break;
-      case 225: /* cmd ::= createkw uniqueflag INDEX ifnotexists nm dbnm ON nm LP sortlist RP where_opt */
-{
-  tdsqlite3CreateIndex(pParse, &yymsp[-7].minor.yy0, &yymsp[-6].minor.yy0, 
-                     tdsqlite3SrcListAppend(pParse,0,&yymsp[-4].minor.yy0,0), yymsp[-2].minor.yy242, yymsp[-10].minor.yy192,
-                      &yymsp[-11].minor.yy0, yymsp[0].minor.yy202, SQLITE_SO_ASC, yymsp[-8].minor.yy192, SQLITE_IDXTYPE_APPDEF);
-  if( IN_RENAME_OBJECT && pParse->pNewIndex ){
-    tdsqlite3RenameTokenMap(pParse, pParse->pNewIndex->zName, &yymsp[-4].minor.yy0);
-  }
-}
-        break;
-      case 226: /* uniqueflag ::= UNIQUE */
-      case 268: /* raisetype ::= ABORT */ yytestcase(yyruleno==268);
-{yymsp[0].minor.yy192 = OE_Abort;}
-        break;
-      case 227: /* uniqueflag ::= */
-{yymsp[1].minor.yy192 = OE_None;}
-        break;
-      case 230: /* eidlist ::= eidlist COMMA nm collate sortorder */
-{
-  yymsp[-4].minor.yy242 = parserAddExprIdListTerm(pParse, yymsp[-4].minor.yy242, &yymsp[-2].minor.yy0, yymsp[-1].minor.yy192, yymsp[0].minor.yy192);
-}
-        break;
-      case 231: /* eidlist ::= nm collate sortorder */
-{
-  yymsp[-2].minor.yy242 = parserAddExprIdListTerm(pParse, 0, &yymsp[-2].minor.yy0, yymsp[-1].minor.yy192, yymsp[0].minor.yy192); /*A-overwrites-Y*/
-}
-        break;
-      case 234: /* cmd ::= DROP INDEX ifexists fullname */
-{tdsqlite3DropIndex(pParse, yymsp[0].minor.yy47, yymsp[-1].minor.yy192);}
-        break;
-      case 235: /* cmd ::= VACUUM vinto */
-{tdsqlite3Vacuum(pParse,0,yymsp[0].minor.yy202);}
-        break;
-      case 236: /* cmd ::= VACUUM nm vinto */
-{tdsqlite3Vacuum(pParse,&yymsp[-1].minor.yy0,yymsp[0].minor.yy202);}
-        break;
-      case 239: /* cmd ::= PRAGMA nm dbnm */
-{tdsqlite3Pragma(pParse,&yymsp[-1].minor.yy0,&yymsp[0].minor.yy0,0,0);}
-        break;
-      case 240: /* cmd ::= PRAGMA nm dbnm EQ nmnum */
-{tdsqlite3Pragma(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0,0);}
-        break;
-      case 241: /* cmd ::= PRAGMA nm dbnm LP nmnum RP */
-{tdsqlite3Pragma(pParse,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,&yymsp[-1].minor.yy0,0);}
-        break;
-      case 242: /* cmd ::= PRAGMA nm dbnm EQ minus_num */
-{tdsqlite3Pragma(pParse,&yymsp[-3].minor.yy0,&yymsp[-2].minor.yy0,&yymsp[0].minor.yy0,1);}
-        break;
-      case 243: /* cmd ::= PRAGMA nm dbnm LP minus_num RP */
-{tdsqlite3Pragma(pParse,&yymsp[-4].minor.yy0,&yymsp[-3].minor.yy0,&yymsp[-1].minor.yy0,1);}
-        break;
-      case 246: /* cmd ::= createkw trigger_decl BEGIN trigger_cmd_list END */
-{
-  Token all;
-  all.z = yymsp[-3].minor.yy0.z;
-  all.n = (int)(yymsp[0].minor.yy0.z - yymsp[-3].minor.yy0.z) + yymsp[0].minor.yy0.n;
-  tdsqlite3FinishTrigger(pParse, yymsp[-1].minor.yy447, &all);
-}
-        break;
-      case 247: /* trigger_decl ::= temp TRIGGER ifnotexists nm dbnm trigger_time trigger_event ON fullname foreach_clause when_clause */
-{
-  tdsqlite3BeginTrigger(pParse, &yymsp[-7].minor.yy0, &yymsp[-6].minor.yy0, yymsp[-5].minor.yy192, yymsp[-4].minor.yy230.a, yymsp[-4].minor.yy230.b, yymsp[-2].minor.yy47, yymsp[0].minor.yy202, yymsp[-10].minor.yy192, yymsp[-8].minor.yy192);
-  yymsp[-10].minor.yy0 = (yymsp[-6].minor.yy0.n==0?yymsp[-7].minor.yy0:yymsp[-6].minor.yy0); /*A-overwrites-T*/
-}
-        break;
-      case 248: /* trigger_time ::= BEFORE|AFTER */
-{ yymsp[0].minor.yy192 = yymsp[0].major; /*A-overwrites-X*/ }
-        break;
-      case 249: /* trigger_time ::= INSTEAD OF */
-{ yymsp[-1].minor.yy192 = TK_INSTEAD;}
-        break;
-      case 250: /* trigger_time ::= */
-{ yymsp[1].minor.yy192 = TK_BEFORE; }
-        break;
-      case 251: /* trigger_event ::= DELETE|INSERT */
-      case 252: /* trigger_event ::= UPDATE */ yytestcase(yyruleno==252);
-{yymsp[0].minor.yy230.a = yymsp[0].major; /*A-overwrites-X*/ yymsp[0].minor.yy230.b = 0;}
-        break;
-      case 253: /* trigger_event ::= UPDATE OF idlist */
-{yymsp[-2].minor.yy230.a = TK_UPDATE; yymsp[-2].minor.yy230.b = yymsp[0].minor.yy600;}
-        break;
-      case 254: /* when_clause ::= */
-      case 273: /* key_opt ::= */ yytestcase(yyruleno==273);
-{ yymsp[1].minor.yy202 = 0; }
-        break;
-      case 255: /* when_clause ::= WHEN expr */
-      case 274: /* key_opt ::= KEY expr */ yytestcase(yyruleno==274);
-{ yymsp[-1].minor.yy202 = yymsp[0].minor.yy202; }
-        break;
-      case 256: /* trigger_cmd_list ::= trigger_cmd_list trigger_cmd SEMI */
-{
-  assert( yymsp[-2].minor.yy447!=0 );
-  yymsp[-2].minor.yy447->pLast->pNext = yymsp[-1].minor.yy447;
-  yymsp[-2].minor.yy447->pLast = yymsp[-1].minor.yy447;
-}
-        break;
-      case 257: /* trigger_cmd_list ::= trigger_cmd SEMI */
-{ 
-  assert( yymsp[-1].minor.yy447!=0 );
-  yymsp[-1].minor.yy447->pLast = yymsp[-1].minor.yy447;
-}
-        break;
-      case 258: /* trnm ::= nm DOT nm */
-{
-  yymsp[-2].minor.yy0 = yymsp[0].minor.yy0;
-  tdsqlite3ErrorMsg(pParse, 
-        "qualified table names are not allowed on INSERT, UPDATE, and DELETE "
-        "statements within triggers");
-}
-        break;
-      case 259: /* tridxby ::= INDEXED BY nm */
-{
-  tdsqlite3ErrorMsg(pParse,
-        "the INDEXED BY clause is not allowed on UPDATE or DELETE statements "
-        "within triggers");
-}
-        break;
-      case 260: /* tridxby ::= NOT INDEXED */
-{
-  tdsqlite3ErrorMsg(pParse,
-        "the NOT INDEXED clause is not allowed on UPDATE or DELETE statements "
-        "within triggers");
-}
-        break;
-      case 261: /* trigger_cmd ::= UPDATE orconf trnm tridxby SET setlist where_opt scanpt */
-{yylhsminor.yy447 = tdsqlite3TriggerUpdateStep(pParse, &yymsp[-5].minor.yy0, yymsp[-2].minor.yy242, yymsp[-1].minor.yy202, yymsp[-6].minor.yy192, yymsp[-7].minor.yy0.z, yymsp[0].minor.yy436);}
-  yymsp[-7].minor.yy447 = yylhsminor.yy447;
-        break;
-      case 262: /* trigger_cmd ::= scanpt insert_cmd INTO trnm idlist_opt select upsert scanpt */
-{
-   yylhsminor.yy447 = tdsqlite3TriggerInsertStep(pParse,&yymsp[-4].minor.yy0,yymsp[-3].minor.yy600,yymsp[-2].minor.yy539,yymsp[-6].minor.yy192,yymsp[-1].minor.yy318,yymsp[-7].minor.yy436,yymsp[0].minor.yy436);/*yylhsminor.yy447-overwrites-yymsp[-6].minor.yy192*/
-}
-  yymsp[-7].minor.yy447 = yylhsminor.yy447;
-        break;
-      case 263: /* trigger_cmd ::= DELETE FROM trnm tridxby where_opt scanpt */
-{yylhsminor.yy447 = tdsqlite3TriggerDeleteStep(pParse, &yymsp[-3].minor.yy0, yymsp[-1].minor.yy202, yymsp[-5].minor.yy0.z, yymsp[0].minor.yy436);}
-  yymsp[-5].minor.yy447 = yylhsminor.yy447;
-        break;
-      case 264: /* trigger_cmd ::= scanpt select scanpt */
-{yylhsminor.yy447 = tdsqlite3TriggerSelectStep(pParse->db, yymsp[-1].minor.yy539, yymsp[-2].minor.yy436, yymsp[0].minor.yy436); /*yylhsminor.yy447-overwrites-yymsp[-1].minor.yy539*/}
-  yymsp[-2].minor.yy447 = yylhsminor.yy447;
-        break;
-      case 265: /* expr ::= RAISE LP IGNORE RP */
-{
-  yymsp[-3].minor.yy202 = tdsqlite3PExpr(pParse, TK_RAISE, 0, 0); 
-  if( yymsp[-3].minor.yy202 ){
-    yymsp[-3].minor.yy202->affExpr = OE_Ignore;
-  }
-}
-        break;
-      case 266: /* expr ::= RAISE LP raisetype COMMA nm RP */
-{
-  yymsp[-5].minor.yy202 = tdsqlite3ExprAlloc(pParse->db, TK_RAISE, &yymsp[-1].minor.yy0, 1); 
-  if( yymsp[-5].minor.yy202 ) {
-    yymsp[-5].minor.yy202->affExpr = (char)yymsp[-3].minor.yy192;
-  }
-}
-        break;
-      case 267: /* raisetype ::= ROLLBACK */
-{yymsp[0].minor.yy192 = OE_Rollback;}
-        break;
-      case 269: /* raisetype ::= FAIL */
-{yymsp[0].minor.yy192 = OE_Fail;}
-        break;
-      case 270: /* cmd ::= DROP TRIGGER ifexists fullname */
-{
-  tdsqlite3DropTrigger(pParse,yymsp[0].minor.yy47,yymsp[-1].minor.yy192);
-}
-        break;
-      case 271: /* cmd ::= ATTACH database_kw_opt expr AS expr key_opt */
-{
-  tdsqlite3Attach(pParse, yymsp[-3].minor.yy202, yymsp[-1].minor.yy202, yymsp[0].minor.yy202);
-}
-        break;
-      case 272: /* cmd ::= DETACH database_kw_opt expr */
-{
-  tdsqlite3Detach(pParse, yymsp[0].minor.yy202);
-}
-        break;
-      case 275: /* cmd ::= REINDEX */
-{tdsqlite3Reindex(pParse, 0, 0);}
-        break;
-      case 276: /* cmd ::= REINDEX nm dbnm */
-{tdsqlite3Reindex(pParse, &yymsp[-1].minor.yy0, &yymsp[0].minor.yy0);}
-        break;
-      case 277: /* cmd ::= ANALYZE */
-{tdsqlite3Analyze(pParse, 0, 0);}
-        break;
-      case 278: /* cmd ::= ANALYZE nm dbnm */
-{tdsqlite3Analyze(pParse, &yymsp[-1].minor.yy0, &yymsp[0].minor.yy0);}
-        break;
-      case 279: /* cmd ::= ALTER TABLE fullname RENAME TO nm */
-{
-  tdsqlite3AlterRenameTable(pParse,yymsp[-3].minor.yy47,&yymsp[0].minor.yy0);
-}
-        break;
-      case 280: /* cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt columnname carglist */
-{
-  yymsp[-1].minor.yy0.n = (int)(pParse->sLastToken.z-yymsp[-1].minor.yy0.z) + pParse->sLastToken.n;
-  tdsqlite3AlterFinishAddColumn(pParse, &yymsp[-1].minor.yy0);
-}
-        break;
-      case 281: /* add_column_fullname ::= fullname */
-{
-  disableLookaside(pParse);
-  tdsqlite3AlterBeginAddColumn(pParse, yymsp[0].minor.yy47);
-}
-        break;
-      case 282: /* cmd ::= ALTER TABLE fullname RENAME kwcolumn_opt nm TO nm */
-{
-  tdsqlite3AlterRenameColumn(pParse, yymsp[-5].minor.yy47, &yymsp[-2].minor.yy0, &yymsp[0].minor.yy0);
-}
-        break;
-      case 283: /* cmd ::= create_vtab */
-{tdsqlite3VtabFinishParse(pParse,0);}
-        break;
-      case 284: /* cmd ::= create_vtab LP vtabarglist RP */
-{tdsqlite3VtabFinishParse(pParse,&yymsp[0].minor.yy0);}
-        break;
-      case 285: /* create_vtab ::= createkw VIRTUAL TABLE ifnotexists nm dbnm USING nm */
-{
-    tdsqlite3VtabBeginParse(pParse, &yymsp[-3].minor.yy0, &yymsp[-2].minor.yy0, &yymsp[0].minor.yy0, yymsp[-4].minor.yy192);
-}
-        break;
-      case 286: /* vtabarg ::= */
-{tdsqlite3VtabArgInit(pParse);}
-        break;
-      case 287: /* vtabargtoken ::= ANY */
-      case 288: /* vtabargtoken ::= lp anylist RP */ yytestcase(yyruleno==288);
-      case 289: /* lp ::= LP */ yytestcase(yyruleno==289);
-{tdsqlite3VtabArgExtend(pParse,&yymsp[0].minor.yy0);}
-        break;
-      case 290: /* with ::= WITH wqlist */
-      case 291: /* with ::= WITH RECURSIVE wqlist */ yytestcase(yyruleno==291);
-{ tdsqlite3WithPush(pParse, yymsp[0].minor.yy131, 1); }
-        break;
-      case 292: /* wqlist ::= nm eidlist_opt AS LP select RP */
-{
-  yymsp[-5].minor.yy131 = tdsqlite3WithAdd(pParse, 0, &yymsp[-5].minor.yy0, yymsp[-4].minor.yy242, yymsp[-1].minor.yy539); /*A-overwrites-X*/
-}
-        break;
-      case 293: /* wqlist ::= wqlist COMMA nm eidlist_opt AS LP select RP */
-{
-  yymsp[-7].minor.yy131 = tdsqlite3WithAdd(pParse, yymsp[-7].minor.yy131, &yymsp[-5].minor.yy0, yymsp[-4].minor.yy242, yymsp[-1].minor.yy539);
-}
-        break;
-      case 294: /* windowdefn_list ::= windowdefn */
-{ yylhsminor.yy303 = yymsp[0].minor.yy303; }
-  yymsp[0].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 295: /* windowdefn_list ::= windowdefn_list COMMA windowdefn */
-{
-  assert( yymsp[0].minor.yy303!=0 );
-  tdsqlite3WindowChain(pParse, yymsp[0].minor.yy303, yymsp[-2].minor.yy303);
-  yymsp[0].minor.yy303->pNextWin = yymsp[-2].minor.yy303;
-  yylhsminor.yy303 = yymsp[0].minor.yy303;
-}
-  yymsp[-2].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 296: /* windowdefn ::= nm AS LP window RP */
-{
-  if( ALWAYS(yymsp[-1].minor.yy303) ){
-    yymsp[-1].minor.yy303->zName = tdsqlite3DbStrNDup(pParse->db, yymsp[-4].minor.yy0.z, yymsp[-4].minor.yy0.n);
-  }
-  yylhsminor.yy303 = yymsp[-1].minor.yy303;
-}
-  yymsp[-4].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 297: /* window ::= PARTITION BY nexprlist orderby_opt frame_opt */
-{
-  yymsp[-4].minor.yy303 = tdsqlite3WindowAssemble(pParse, yymsp[0].minor.yy303, yymsp[-2].minor.yy242, yymsp[-1].minor.yy242, 0);
-}
-        break;
-      case 298: /* window ::= nm PARTITION BY nexprlist orderby_opt frame_opt */
-{
-  yylhsminor.yy303 = tdsqlite3WindowAssemble(pParse, yymsp[0].minor.yy303, yymsp[-2].minor.yy242, yymsp[-1].minor.yy242, &yymsp[-5].minor.yy0);
-}
-  yymsp[-5].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 299: /* window ::= ORDER BY sortlist frame_opt */
-{
-  yymsp[-3].minor.yy303 = tdsqlite3WindowAssemble(pParse, yymsp[0].minor.yy303, 0, yymsp[-1].minor.yy242, 0);
-}
-        break;
-      case 300: /* window ::= nm ORDER BY sortlist frame_opt */
-{
-  yylhsminor.yy303 = tdsqlite3WindowAssemble(pParse, yymsp[0].minor.yy303, 0, yymsp[-1].minor.yy242, &yymsp[-4].minor.yy0);
-}
-  yymsp[-4].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 301: /* window ::= frame_opt */
-      case 320: /* filter_over ::= over_clause */ yytestcase(yyruleno==320);
-{
-  yylhsminor.yy303 = yymsp[0].minor.yy303;
-}
-  yymsp[0].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 302: /* window ::= nm frame_opt */
-{
-  yylhsminor.yy303 = tdsqlite3WindowAssemble(pParse, yymsp[0].minor.yy303, 0, 0, &yymsp[-1].minor.yy0);
-}
-  yymsp[-1].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 303: /* frame_opt ::= */
-{ 
-  yymsp[1].minor.yy303 = tdsqlite3WindowAlloc(pParse, 0, TK_UNBOUNDED, 0, TK_CURRENT, 0, 0);
-}
-        break;
-      case 304: /* frame_opt ::= range_or_rows frame_bound_s frame_exclude_opt */
-{ 
-  yylhsminor.yy303 = tdsqlite3WindowAlloc(pParse, yymsp[-2].minor.yy192, yymsp[-1].minor.yy77.eType, yymsp[-1].minor.yy77.pExpr, TK_CURRENT, 0, yymsp[0].minor.yy58);
-}
-  yymsp[-2].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 305: /* frame_opt ::= range_or_rows BETWEEN frame_bound_s AND frame_bound_e frame_exclude_opt */
-{ 
-  yylhsminor.yy303 = tdsqlite3WindowAlloc(pParse, yymsp[-5].minor.yy192, yymsp[-3].minor.yy77.eType, yymsp[-3].minor.yy77.pExpr, yymsp[-1].minor.yy77.eType, yymsp[-1].minor.yy77.pExpr, yymsp[0].minor.yy58);
-}
-  yymsp[-5].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 307: /* frame_bound_s ::= frame_bound */
-      case 309: /* frame_bound_e ::= frame_bound */ yytestcase(yyruleno==309);
-{yylhsminor.yy77 = yymsp[0].minor.yy77;}
-  yymsp[0].minor.yy77 = yylhsminor.yy77;
-        break;
-      case 308: /* frame_bound_s ::= UNBOUNDED PRECEDING */
-      case 310: /* frame_bound_e ::= UNBOUNDED FOLLOWING */ yytestcase(yyruleno==310);
-      case 312: /* frame_bound ::= CURRENT ROW */ yytestcase(yyruleno==312);
-{yylhsminor.yy77.eType = yymsp[-1].major; yylhsminor.yy77.pExpr = 0;}
-  yymsp[-1].minor.yy77 = yylhsminor.yy77;
-        break;
-      case 311: /* frame_bound ::= expr PRECEDING|FOLLOWING */
-{yylhsminor.yy77.eType = yymsp[0].major; yylhsminor.yy77.pExpr = yymsp[-1].minor.yy202;}
-  yymsp[-1].minor.yy77 = yylhsminor.yy77;
-        break;
-      case 313: /* frame_exclude_opt ::= */
-{yymsp[1].minor.yy58 = 0;}
-        break;
-      case 314: /* frame_exclude_opt ::= EXCLUDE frame_exclude */
-{yymsp[-1].minor.yy58 = yymsp[0].minor.yy58;}
-        break;
-      case 315: /* frame_exclude ::= NO OTHERS */
-      case 316: /* frame_exclude ::= CURRENT ROW */ yytestcase(yyruleno==316);
-{yymsp[-1].minor.yy58 = yymsp[-1].major; /*A-overwrites-X*/}
-        break;
-      case 317: /* frame_exclude ::= GROUP|TIES */
-{yymsp[0].minor.yy58 = yymsp[0].major; /*A-overwrites-X*/}
-        break;
-      case 318: /* window_clause ::= WINDOW windowdefn_list */
-{ yymsp[-1].minor.yy303 = yymsp[0].minor.yy303; }
-        break;
-      case 319: /* filter_over ::= filter_clause over_clause */
-{
-  yymsp[0].minor.yy303->pFilter = yymsp[-1].minor.yy202;
-  yylhsminor.yy303 = yymsp[0].minor.yy303;
-}
-  yymsp[-1].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 321: /* filter_over ::= filter_clause */
-{
-  yylhsminor.yy303 = (Window*)tdsqlite3DbMallocZero(pParse->db, sizeof(Window));
-  if( yylhsminor.yy303 ){
-    yylhsminor.yy303->eFrmType = TK_FILTER;
-    yylhsminor.yy303->pFilter = yymsp[0].minor.yy202;
-  }else{
-    tdsqlite3ExprDelete(pParse->db, yymsp[0].minor.yy202);
-  }
-}
-  yymsp[0].minor.yy303 = yylhsminor.yy303;
-        break;
-      case 322: /* over_clause ::= OVER LP window RP */
-{
-  yymsp[-3].minor.yy303 = yymsp[-1].minor.yy303;
-  assert( yymsp[-3].minor.yy303!=0 );
-}
-        break;
-      case 323: /* over_clause ::= OVER nm */
-{
-  yymsp[-1].minor.yy303 = (Window*)tdsqlite3DbMallocZero(pParse->db, sizeof(Window));
-  if( yymsp[-1].minor.yy303 ){
-    yymsp[-1].minor.yy303->zName = tdsqlite3DbStrNDup(pParse->db, yymsp[0].minor.yy0.z, yymsp[0].minor.yy0.n);
-  }
-}
-        break;
-      case 324: /* filter_clause ::= FILTER LP WHERE expr RP */
-{ yymsp[-4].minor.yy202 = yymsp[-1].minor.yy202; }
-        break;
-      default:
-      /* (325) input ::= cmdlist */ yytestcase(yyruleno==325);
-      /* (326) cmdlist ::= cmdlist ecmd */ yytestcase(yyruleno==326);
-      /* (327) cmdlist ::= ecmd (OPTIMIZED OUT) */ assert(yyruleno!=327);
-      /* (328) ecmd ::= SEMI */ yytestcase(yyruleno==328);
-      /* (329) ecmd ::= cmdx SEMI */ yytestcase(yyruleno==329);
-      /* (330) ecmd ::= explain cmdx SEMI (NEVER REDUCES) */ assert(yyruleno!=330);
-      /* (331) trans_opt ::= */ yytestcase(yyruleno==331);
-      /* (332) trans_opt ::= TRANSACTION */ yytestcase(yyruleno==332);
-      /* (333) trans_opt ::= TRANSACTION nm */ yytestcase(yyruleno==333);
-      /* (334) savepoint_opt ::= SAVEPOINT */ yytestcase(yyruleno==334);
-      /* (335) savepoint_opt ::= */ yytestcase(yyruleno==335);
-      /* (336) cmd ::= create_table create_table_args */ yytestcase(yyruleno==336);
-      /* (337) columnlist ::= columnlist COMMA columnname carglist */ yytestcase(yyruleno==337);
-      /* (338) columnlist ::= columnname carglist */ yytestcase(yyruleno==338);
-      /* (339) nm ::= ID|INDEXED */ yytestcase(yyruleno==339);
-      /* (340) nm ::= STRING */ yytestcase(yyruleno==340);
-      /* (341) nm ::= JOIN_KW */ yytestcase(yyruleno==341);
-      /* (342) typetoken ::= typename */ yytestcase(yyruleno==342);
-      /* (343) typename ::= ID|STRING */ yytestcase(yyruleno==343);
-      /* (344) signed ::= plus_num (OPTIMIZED OUT) */ assert(yyruleno!=344);
-      /* (345) signed ::= minus_num (OPTIMIZED OUT) */ assert(yyruleno!=345);
-      /* (346) carglist ::= carglist ccons */ yytestcase(yyruleno==346);
-      /* (347) carglist ::= */ yytestcase(yyruleno==347);
-      /* (348) ccons ::= NULL onconf */ yytestcase(yyruleno==348);
-      /* (349) ccons ::= GENERATED ALWAYS AS generated */ yytestcase(yyruleno==349);
-      /* (350) ccons ::= AS generated */ yytestcase(yyruleno==350);
-      /* (351) conslist_opt ::= COMMA conslist */ yytestcase(yyruleno==351);
-      /* (352) conslist ::= conslist tconscomma tcons */ yytestcase(yyruleno==352);
-      /* (353) conslist ::= tcons (OPTIMIZED OUT) */ assert(yyruleno!=353);
-      /* (354) tconscomma ::= */ yytestcase(yyruleno==354);
-      /* (355) defer_subclause_opt ::= defer_subclause (OPTIMIZED OUT) */ assert(yyruleno!=355);
-      /* (356) resolvetype ::= raisetype (OPTIMIZED OUT) */ assert(yyruleno!=356);
-      /* (357) selectnowith ::= oneselect (OPTIMIZED OUT) */ assert(yyruleno!=357);
-      /* (358) oneselect ::= values */ yytestcase(yyruleno==358);
-      /* (359) sclp ::= selcollist COMMA */ yytestcase(yyruleno==359);
-      /* (360) as ::= ID|STRING */ yytestcase(yyruleno==360);
-      /* (361) expr ::= term (OPTIMIZED OUT) */ assert(yyruleno!=361);
-      /* (362) likeop ::= LIKE_KW|MATCH */ yytestcase(yyruleno==362);
-      /* (363) exprlist ::= nexprlist */ yytestcase(yyruleno==363);
-      /* (364) nmnum ::= plus_num (OPTIMIZED OUT) */ assert(yyruleno!=364);
-      /* (365) nmnum ::= nm (OPTIMIZED OUT) */ assert(yyruleno!=365);
-      /* (366) nmnum ::= ON */ yytestcase(yyruleno==366);
-      /* (367) nmnum ::= DELETE */ yytestcase(yyruleno==367);
-      /* (368) nmnum ::= DEFAULT */ yytestcase(yyruleno==368);
-      /* (369) plus_num ::= INTEGER|FLOAT */ yytestcase(yyruleno==369);
-      /* (370) foreach_clause ::= */ yytestcase(yyruleno==370);
-      /* (371) foreach_clause ::= FOR EACH ROW */ yytestcase(yyruleno==371);
-      /* (372) trnm ::= nm */ yytestcase(yyruleno==372);
-      /* (373) tridxby ::= */ yytestcase(yyruleno==373);
-      /* (374) database_kw_opt ::= DATABASE */ yytestcase(yyruleno==374);
-      /* (375) database_kw_opt ::= */ yytestcase(yyruleno==375);
-      /* (376) kwcolumn_opt ::= */ yytestcase(yyruleno==376);
-      /* (377) kwcolumn_opt ::= COLUMNKW */ yytestcase(yyruleno==377);
-      /* (378) vtabarglist ::= vtabarg */ yytestcase(yyruleno==378);
-      /* (379) vtabarglist ::= vtabarglist COMMA vtabarg */ yytestcase(yyruleno==379);
-      /* (380) vtabarg ::= vtabarg vtabargtoken */ yytestcase(yyruleno==380);
-      /* (381) anylist ::= */ yytestcase(yyruleno==381);
-      /* (382) anylist ::= anylist LP anylist RP */ yytestcase(yyruleno==382);
-      /* (383) anylist ::= anylist ANY */ yytestcase(yyruleno==383);
-      /* (384) with ::= */ yytestcase(yyruleno==384);
-        break;
-/********** End reduce actions ************************************************/
-  };
-  assert( yyruleno<sizeof(yyRuleInfoLhs)/sizeof(yyRuleInfoLhs[0]) );
-  yygoto = yyRuleInfoLhs[yyruleno];
-  yysize = yyRuleInfoNRhs[yyruleno];
-  yyact = yy_find_reduce_action(yymsp[yysize].stateno,(YYCODETYPE)yygoto);
-
-  /* There are no SHIFTREDUCE actions on nonterminals because the table
-  ** generator has simplified them to pure REDUCE actions. */
-  assert( !(yyact>YY_MAX_SHIFT && yyact<=YY_MAX_SHIFTREDUCE) );
-
-  /* It is not possible for a REDUCE to be followed by an error */
-  assert( yyact!=YY_ERROR_ACTION );
-
-  yymsp += yysize+1;
-  yypParser->yytos = yymsp;
-  yymsp->stateno = (YYACTIONTYPE)yyact;
-  yymsp->major = (YYCODETYPE)yygoto;
-  yyTraceShift(yypParser, yyact, "... then shift");
-  return yyact;
-}
-
-/*
-** The following code executes when the parse fails
-*/
-#ifndef YYNOERRORRECOVERY
-static void yy_parse_failed(
-  yyParser *yypParser           /* The parser */
-){
-  tdsqlite3ParserARG_FETCH
-  tdsqlite3ParserCTX_FETCH
-#ifndef NDEBUG
-  if( yyTraceFILE ){
-    fprintf(yyTraceFILE,"%sFail!\n",yyTracePrompt);
-  }
-#endif
-  while( yypParser->yytos>yypParser->yystack ) yy_pop_parser_stack(yypParser);
-  /* Here code is inserted which will be executed whenever the
-  ** parser fails */
-/************ Begin %parse_failure code ***************************************/
-/************ End %parse_failure code *****************************************/
-  tdsqlite3ParserARG_STORE /* Suppress warning about unused %extra_argument variable */
-  tdsqlite3ParserCTX_STORE
-}
-#endif /* YYNOERRORRECOVERY */
-
-/*
-** The following code executes when a syntax error first occurs.
-*/
-static void yy_syntax_error(
-  yyParser *yypParser,           /* The parser */
-  int yymajor,                   /* The major type of the error token */
-  tdsqlite3ParserTOKENTYPE yyminor         /* The minor type of the error token */
-){
-  tdsqlite3ParserARG_FETCH
-  tdsqlite3ParserCTX_FETCH
-#define TOKEN yyminor
-/************ Begin %syntax_error code ****************************************/
-
-  UNUSED_PARAMETER(yymajor);  /* Silence some compiler warnings */
-  if( TOKEN.z[0] ){
-    tdsqlite3ErrorMsg(pParse, "near \"%T\": syntax error", &TOKEN);
-  }else{
-    tdsqlite3ErrorMsg(pParse, "incomplete input");
-  }
-/************ End %syntax_error code ******************************************/
-  tdsqlite3ParserARG_STORE /* Suppress warning about unused %extra_argument variable */
-  tdsqlite3ParserCTX_STORE
-}
-
-/*
-** The following is executed when the parser accepts
-*/
-static void yy_accept(
-  yyParser *yypParser           /* The parser */
-){
-  tdsqlite3ParserARG_FETCH
-  tdsqlite3ParserCTX_FETCH
-#ifndef NDEBUG
-  if( yyTraceFILE ){
-    fprintf(yyTraceFILE,"%sAccept!\n",yyTracePrompt);
-  }
-#endif
-#ifndef YYNOERRORRECOVERY
-  yypParser->yyerrcnt = -1;
-#endif
-  assert( yypParser->yytos==yypParser->yystack );
-  /* Here code is inserted which will be executed whenever the
-  ** parser accepts */
-/*********** Begin %parse_accept code *****************************************/
-/*********** End %parse_accept code *******************************************/
-  tdsqlite3ParserARG_STORE /* Suppress warning about unused %extra_argument variable */
-  tdsqlite3ParserCTX_STORE
-}
-
-/* The main parser program.
-** The first argument is a pointer to a structure obtained from
-** "tdsqlite3ParserAlloc" which describes the current state of the parser.
-** The second argument is the major token number.  The third is
-** the minor token.  The fourth optional argument is whatever the
-** user wants (and specified in the grammar) and is available for
-** use by the action routines.
-**
-** Inputs:
-** <ul>
-** <li> A pointer to the parser (an opaque structure.)
-** <li> The major token number.
-** <li> The minor token number.
-** <li> An option argument of a grammar-specified type.
-** </ul>
-**
-** Outputs:
-** None.
-*/
-SQLITE_PRIVATE void tdsqlite3Parser(
-  void *yyp,                   /* The parser */
-  int yymajor,                 /* The major token code number */
-  tdsqlite3ParserTOKENTYPE yyminor       /* The value for the token */
-  tdsqlite3ParserARG_PDECL               /* Optional %extra_argument parameter */
-){
-  YYMINORTYPE yyminorunion;
-  YYACTIONTYPE yyact;   /* The parser action. */
-#if !defined(YYERRORSYMBOL) && !defined(YYNOERRORRECOVERY)
-  int yyendofinput;     /* True if we are at the end of input */
-#endif
-#ifdef YYERRORSYMBOL
-  int yyerrorhit = 0;   /* True if yymajor has invoked an error */
-#endif
-  yyParser *yypParser = (yyParser*)yyp;  /* The parser */
-  tdsqlite3ParserCTX_FETCH
-  tdsqlite3ParserARG_STORE
-
-  assert( yypParser->yytos!=0 );
-#if !defined(YYERRORSYMBOL) && !defined(YYNOERRORRECOVERY)
-  yyendofinput = (yymajor==0);
-#endif
-
-  yyact = yypParser->yytos->stateno;
-#ifndef NDEBUG
-  if( yyTraceFILE ){
-    if( yyact < YY_MIN_REDUCE ){
-      fprintf(yyTraceFILE,"%sInput '%s' in state %d\n",
-              yyTracePrompt,yyTokenName[yymajor],yyact);
-    }else{
-      fprintf(yyTraceFILE,"%sInput '%s' with pending reduce %d\n",
-              yyTracePrompt,yyTokenName[yymajor],yyact-YY_MIN_REDUCE);
-    }
-  }
-#endif
-
-  do{
-    assert( yyact==yypParser->yytos->stateno );
-    yyact = yy_find_shift_action((YYCODETYPE)yymajor,yyact);
-    if( yyact >= YY_MIN_REDUCE ){
-      yyact = yy_reduce(yypParser,yyact-YY_MIN_REDUCE,yymajor,
-                        yyminor tdsqlite3ParserCTX_PARAM);
-    }else if( yyact <= YY_MAX_SHIFTREDUCE ){
-      yy_shift(yypParser,yyact,(YYCODETYPE)yymajor,yyminor);
-#ifndef YYNOERRORRECOVERY
-      yypParser->yyerrcnt--;
-#endif
-      break;
-    }else if( yyact==YY_ACCEPT_ACTION ){
-      yypParser->yytos--;
-      yy_accept(yypParser);
-      return;
-    }else{
-      assert( yyact == YY_ERROR_ACTION );
-      yyminorunion.yy0 = yyminor;
-#ifdef YYERRORSYMBOL
-      int yymx;
-#endif
-#ifndef NDEBUG
-      if( yyTraceFILE ){
-        fprintf(yyTraceFILE,"%sSyntax Error!\n",yyTracePrompt);
-      }
-#endif
-#ifdef YYERRORSYMBOL
-      /* A syntax error has occurred.
-      ** The response to an error depends upon whether or not the
-      ** grammar defines an error token "ERROR".  
-      **
-      ** This is what we do if the grammar does define ERROR:
-      **
-      **  * Call the %syntax_error function.
-      **
-      **  * Begin popping the stack until we enter a state where
-      **    it is legal to shift the error symbol, then shift
-      **    the error symbol.
-      **
-      **  * Set the error count to three.
-      **
-      **  * Begin accepting and shifting new tokens.  No new error
-      **    processing will occur until three tokens have been
-      **    shifted successfully.
-      **
-      */
-      if( yypParser->yyerrcnt<0 ){
-        yy_syntax_error(yypParser,yymajor,yyminor);
-      }
-      yymx = yypParser->yytos->major;
-      if( yymx==YYERRORSYMBOL || yyerrorhit ){
-#ifndef NDEBUG
-        if( yyTraceFILE ){
-          fprintf(yyTraceFILE,"%sDiscard input token %s\n",
-             yyTracePrompt,yyTokenName[yymajor]);
-        }
-#endif
-        yy_destructor(yypParser, (YYCODETYPE)yymajor, &yyminorunion);
-        yymajor = YYNOCODE;
-      }else{
-        while( yypParser->yytos >= yypParser->yystack
-            && (yyact = yy_find_reduce_action(
-                        yypParser->yytos->stateno,
-                        YYERRORSYMBOL)) > YY_MAX_SHIFTREDUCE
-        ){
-          yy_pop_parser_stack(yypParser);
-        }
-        if( yypParser->yytos < yypParser->yystack || yymajor==0 ){
-          yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
-          yy_parse_failed(yypParser);
-#ifndef YYNOERRORRECOVERY
-          yypParser->yyerrcnt = -1;
-#endif
-          yymajor = YYNOCODE;
-        }else if( yymx!=YYERRORSYMBOL ){
-          yy_shift(yypParser,yyact,YYERRORSYMBOL,yyminor);
-        }
-      }
-      yypParser->yyerrcnt = 3;
-      yyerrorhit = 1;
-      if( yymajor==YYNOCODE ) break;
-      yyact = yypParser->yytos->stateno;
-#elif defined(YYNOERRORRECOVERY)
-      /* If the YYNOERRORRECOVERY macro is defined, then do not attempt to
-      ** do any kind of error recovery.  Instead, simply invoke the syntax
-      ** error routine and continue going as if nothing had happened.
-      **
-      ** Applications can set this macro (for example inside %include) if
-      ** they intend to abandon the parse upon the first syntax error seen.
-      */
-      yy_syntax_error(yypParser,yymajor, yyminor);
-      yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
-      break;
-#else  /* YYERRORSYMBOL is not defined */
-      /* This is what we do if the grammar does not define ERROR:
-      **
-      **  * Report an error message, and throw away the input token.
-      **
-      **  * If the input token is $, then fail the parse.
-      **
-      ** As before, subsequent error messages are suppressed until
-      ** three input tokens have been successfully shifted.
-      */
-      if( yypParser->yyerrcnt<=0 ){
-        yy_syntax_error(yypParser,yymajor, yyminor);
-      }
-      yypParser->yyerrcnt = 3;
-      yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
-      if( yyendofinput ){
-        yy_parse_failed(yypParser);
-#ifndef YYNOERRORRECOVERY
-        yypParser->yyerrcnt = -1;
-#endif
-      }
-      break;
-#endif
-    }
-  }while( yypParser->yytos>yypParser->yystack );
-#ifndef NDEBUG
-  if( yyTraceFILE ){
-    yyStackEntry *i;
-    char cDiv = '[';
-    fprintf(yyTraceFILE,"%sReturn. Stack=",yyTracePrompt);
-    for(i=&yypParser->yystack[1]; i<=yypParser->yytos; i++){
-      fprintf(yyTraceFILE,"%c%s", cDiv, yyTokenName[i->major]);
-      cDiv = ' ';
-    }
-    fprintf(yyTraceFILE,"]\n");
-  }
-#endif
-  return;
-}
-
-/*
-** Return the fallback token corresponding to canonical token iToken, or
-** 0 if iToken has no fallback.
-*/
-SQLITE_PRIVATE int tdsqlite3ParserFallback(int iToken){
-#ifdef YYFALLBACK
-  assert( iToken<(int)(sizeof(yyFallback)/sizeof(yyFallback[0])) );
-  return yyFallback[iToken];
-#else
-  (void)iToken;
-  return 0;
-#endif
-}
-
-/************** End of parse.c ***********************************************/
-/************** Begin file tokenize.c ****************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** An tokenizer for SQL
-**
-** This file contains C code that splits an SQL input string up into
-** individual tokens and sends those tokens one-by-one over to the
-** parser for analysis.
-*/
-/* #include "sqliteInt.h" */
-/* #include <stdlib.h> */
-
-/* Character classes for tokenizing
-**
-** In the tdsqlite3GetToken() function, a switch() on aiClass[c] is implemented
-** using a lookup table, whereas a switch() directly on c uses a binary search.
-** The lookup table is much faster.  To maximize speed, and to ensure that
-** a lookup table is used, all of the classes need to be small integers and
-** all of them need to be used within the switch.
-*/
-#define CC_X          0    /* The letter 'x', or start of BLOB literal */
-#define CC_KYWD       1    /* Alphabetics or '_'.  Usable in a keyword */
-#define CC_ID         2    /* unicode characters usable in IDs */
-#define CC_DIGIT      3    /* Digits */
-#define CC_DOLLAR     4    /* '$' */
-#define CC_VARALPHA   5    /* '@', '#', ':'.  Alphabetic SQL variables */
-#define CC_VARNUM     6    /* '?'.  Numeric SQL variables */
-#define CC_SPACE      7    /* Space characters */
-#define CC_QUOTE      8    /* '"', '\'', or '`'.  String literals, quoted ids */
-#define CC_QUOTE2     9    /* '['.   [...] style quoted ids */
-#define CC_PIPE      10    /* '|'.   Bitwise OR or concatenate */
-#define CC_MINUS     11    /* '-'.  Minus or SQL-style comment */
-#define CC_LT        12    /* '<'.  Part of < or <= or <> */
-#define CC_GT        13    /* '>'.  Part of > or >= */
-#define CC_EQ        14    /* '='.  Part of = or == */
-#define CC_BANG      15    /* '!'.  Part of != */
-#define CC_SLASH     16    /* '/'.  / or c-style comment */
-#define CC_LP        17    /* '(' */
-#define CC_RP        18    /* ')' */
-#define CC_SEMI      19    /* ';' */
-#define CC_PLUS      20    /* '+' */
-#define CC_STAR      21    /* '*' */
-#define CC_PERCENT   22    /* '%' */
-#define CC_COMMA     23    /* ',' */
-#define CC_AND       24    /* '&' */
-#define CC_TILDA     25    /* '~' */
-#define CC_DOT       26    /* '.' */
-#define CC_ILLEGAL   27    /* Illegal character */
-#define CC_NUL       28    /* 0x00 */
-
-static const unsigned char aiClass[] = {
-#ifdef SQLITE_ASCII
-/*         x0  x1  x2  x3  x4  x5  x6  x7  x8  x9  xa  xb  xc  xd  xe  xf */
-/* 0x */   28, 27, 27, 27, 27, 27, 27, 27, 27,  7,  7, 27,  7,  7, 27, 27,
-/* 1x */   27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-/* 2x */    7, 15,  8,  5,  4, 22, 24,  8, 17, 18, 21, 20, 23, 11, 26, 16,
-/* 3x */    3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  5, 19, 12, 14, 13,  6,
-/* 4x */    5,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
-/* 5x */    1,  1,  1,  1,  1,  1,  1,  1,  0,  1,  1,  9, 27, 27, 27,  1,
-/* 6x */    8,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
-/* 7x */    1,  1,  1,  1,  1,  1,  1,  1,  0,  1,  1, 27, 10, 27, 25, 27,
-/* 8x */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
-/* 9x */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
-/* Ax */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
-/* Bx */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
-/* Cx */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
-/* Dx */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
-/* Ex */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
-/* Fx */    2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2
-#endif
-#ifdef SQLITE_EBCDIC
-/*         x0  x1  x2  x3  x4  x5  x6  x7  x8  x9  xa  xb  xc  xd  xe  xf */
-/* 0x */   27, 27, 27, 27, 27,  7, 27, 27, 27, 27, 27, 27,  7,  7, 27, 27,
-/* 1x */   27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-/* 2x */   27, 27, 27, 27, 27,  7, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-/* 3x */   27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-/* 4x */    7, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 26, 12, 17, 20, 10,
-/* 5x */   24, 27, 27, 27, 27, 27, 27, 27, 27, 27, 15,  4, 21, 18, 19, 27,
-/* 6x */   11, 16, 27, 27, 27, 27, 27, 27, 27, 27, 27, 23, 22,  1, 13,  6,
-/* 7x */   27, 27, 27, 27, 27, 27, 27, 27, 27,  8,  5,  5,  5,  8, 14,  8,
-/* 8x */   27,  1,  1,  1,  1,  1,  1,  1,  1,  1, 27, 27, 27, 27, 27, 27,
-/* 9x */   27,  1,  1,  1,  1,  1,  1,  1,  1,  1, 27, 27, 27, 27, 27, 27,
-/* Ax */   27, 25,  1,  1,  1,  1,  1,  0,  1,  1, 27, 27, 27, 27, 27, 27,
-/* Bx */   27, 27, 27, 27, 27, 27, 27, 27, 27, 27,  9, 27, 27, 27, 27, 27,
-/* Cx */   27,  1,  1,  1,  1,  1,  1,  1,  1,  1, 27, 27, 27, 27, 27, 27,
-/* Dx */   27,  1,  1,  1,  1,  1,  1,  1,  1,  1, 27, 27, 27, 27, 27, 27,
-/* Ex */   27, 27,  1,  1,  1,  1,  1,  0,  1,  1, 27, 27, 27, 27, 27, 27,
-/* Fx */    3,  3,  3,  3,  3,  3,  3,  3,  3,  3, 27, 27, 27, 27, 27, 27,
-#endif
-};
-
-/*
-** The charMap() macro maps alphabetic characters (only) into their
-** lower-case ASCII equivalent.  On ASCII machines, this is just
-** an upper-to-lower case map.  On EBCDIC machines we also need
-** to adjust the encoding.  The mapping is only valid for alphabetics
-** which are the only characters for which this feature is used. 
-**
-** Used by keywordhash.h
-*/
-#ifdef SQLITE_ASCII
-# define charMap(X) tdsqlite3UpperToLower[(unsigned char)X]
-#endif
-#ifdef SQLITE_EBCDIC
-# define charMap(X) ebcdicToAscii[(unsigned char)X]
-const unsigned char ebcdicToAscii[] = {
-/* 0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* 0x */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* 1x */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* 2x */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* 3x */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* 4x */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* 5x */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 95,  0,  0,  /* 6x */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* 7x */
-   0, 97, 98, 99,100,101,102,103,104,105,  0,  0,  0,  0,  0,  0,  /* 8x */
-   0,106,107,108,109,110,111,112,113,114,  0,  0,  0,  0,  0,  0,  /* 9x */
-   0,  0,115,116,117,118,119,120,121,122,  0,  0,  0,  0,  0,  0,  /* Ax */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* Bx */
-   0, 97, 98, 99,100,101,102,103,104,105,  0,  0,  0,  0,  0,  0,  /* Cx */
-   0,106,107,108,109,110,111,112,113,114,  0,  0,  0,  0,  0,  0,  /* Dx */
-   0,  0,115,116,117,118,119,120,121,122,  0,  0,  0,  0,  0,  0,  /* Ex */
-   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  /* Fx */
-};
-#endif
-
-/*
-** The tdsqlite3KeywordCode function looks up an identifier to determine if
-** it is a keyword.  If it is a keyword, the token code of that keyword is 
-** returned.  If the input is not a keyword, TK_ID is returned.
-**
-** The implementation of this routine was generated by a program,
-** mkkeywordhash.c, located in the tool subdirectory of the distribution.
-** The output of the mkkeywordhash.c program is written into a file
-** named keywordhash.h and then included into this source file by
-** the #include below.
-*/
-/************** Include keywordhash.h in the middle of tokenize.c ************/
-/************** Begin file keywordhash.h *************************************/
-/***** This file contains automatically generated code ******
-**
-** The code in this file has been automatically generated by
-**
-**   sqlite/tool/mkkeywordhash.c
-**
-** The code in this file implements a function that determines whether
-** or not a given identifier is really an SQL keyword.  The same thing
-** might be implemented more directly using a hand-written hash table.
-** But by using this automatically generated code, the size of the code
-** is substantially reduced.  This is important for embedded applications
-** on platforms with limited memory.
-*/
-/* Hash score: 227 */
-/* zKWText[] encodes 984 bytes of keyword text in 648 bytes */
-/*   REINDEXEDESCAPEACHECKEYBEFOREIGNOREGEXPLAINSTEADDATABASELECT       */
-/*   ABLEFTHENDEFERRABLELSEXCLUDELETEMPORARYISNULLSAVEPOINTERSECT       */
-/*   IESNOTNULLIKEXCEPTRANSACTIONATURALTERAISEXCLUSIVEXISTS             */
-/*   CONSTRAINTOFFSETRIGGERANGENERATEDETACHAVINGLOBEGINNEREFERENCES     */
-/*   UNIQUERYWITHOUTERELEASEATTACHBETWEENOTHINGROUPSCASCADEFAULT        */
-/*   CASECOLLATECREATECURRENT_DATEIMMEDIATEJOINSERTMATCHPLANALYZE       */
-/*   PRAGMABORTUPDATEVALUESVIRTUALWAYSWHENWHERECURSIVEAFTERENAMEAND     */
-/*   EFERREDISTINCTAUTOINCREMENTCASTCOLUMNCOMMITCONFLICTCROSS           */
-/*   CURRENT_TIMESTAMPARTITIONDROPRECEDINGFAILASTFILTEREPLACEFIRST      */
-/*   FOLLOWINGFROMFULLIMITIFORDERESTRICTOTHERSOVERIGHTROLLBACKROWS      */
-/*   UNBOUNDEDUNIONUSINGVACUUMVIEWINDOWBYINITIALLYPRIMARY               */
-static const char zKWText[647] = {
-  'R','E','I','N','D','E','X','E','D','E','S','C','A','P','E','A','C','H',
-  'E','C','K','E','Y','B','E','F','O','R','E','I','G','N','O','R','E','G',
-  'E','X','P','L','A','I','N','S','T','E','A','D','D','A','T','A','B','A',
-  'S','E','L','E','C','T','A','B','L','E','F','T','H','E','N','D','E','F',
-  'E','R','R','A','B','L','E','L','S','E','X','C','L','U','D','E','L','E',
-  'T','E','M','P','O','R','A','R','Y','I','S','N','U','L','L','S','A','V',
-  'E','P','O','I','N','T','E','R','S','E','C','T','I','E','S','N','O','T',
-  'N','U','L','L','I','K','E','X','C','E','P','T','R','A','N','S','A','C',
-  'T','I','O','N','A','T','U','R','A','L','T','E','R','A','I','S','E','X',
-  'C','L','U','S','I','V','E','X','I','S','T','S','C','O','N','S','T','R',
-  'A','I','N','T','O','F','F','S','E','T','R','I','G','G','E','R','A','N',
-  'G','E','N','E','R','A','T','E','D','E','T','A','C','H','A','V','I','N',
-  'G','L','O','B','E','G','I','N','N','E','R','E','F','E','R','E','N','C',
-  'E','S','U','N','I','Q','U','E','R','Y','W','I','T','H','O','U','T','E',
-  'R','E','L','E','A','S','E','A','T','T','A','C','H','B','E','T','W','E',
-  'E','N','O','T','H','I','N','G','R','O','U','P','S','C','A','S','C','A',
-  'D','E','F','A','U','L','T','C','A','S','E','C','O','L','L','A','T','E',
-  'C','R','E','A','T','E','C','U','R','R','E','N','T','_','D','A','T','E',
-  'I','M','M','E','D','I','A','T','E','J','O','I','N','S','E','R','T','M',
-  'A','T','C','H','P','L','A','N','A','L','Y','Z','E','P','R','A','G','M',
-  'A','B','O','R','T','U','P','D','A','T','E','V','A','L','U','E','S','V',
-  'I','R','T','U','A','L','W','A','Y','S','W','H','E','N','W','H','E','R',
-  'E','C','U','R','S','I','V','E','A','F','T','E','R','E','N','A','M','E',
-  'A','N','D','E','F','E','R','R','E','D','I','S','T','I','N','C','T','A',
-  'U','T','O','I','N','C','R','E','M','E','N','T','C','A','S','T','C','O',
-  'L','U','M','N','C','O','M','M','I','T','C','O','N','F','L','I','C','T',
-  'C','R','O','S','S','C','U','R','R','E','N','T','_','T','I','M','E','S',
-  'T','A','M','P','A','R','T','I','T','I','O','N','D','R','O','P','R','E',
-  'C','E','D','I','N','G','F','A','I','L','A','S','T','F','I','L','T','E',
-  'R','E','P','L','A','C','E','F','I','R','S','T','F','O','L','L','O','W',
-  'I','N','G','F','R','O','M','F','U','L','L','I','M','I','T','I','F','O',
-  'R','D','E','R','E','S','T','R','I','C','T','O','T','H','E','R','S','O',
-  'V','E','R','I','G','H','T','R','O','L','L','B','A','C','K','R','O','W',
-  'S','U','N','B','O','U','N','D','E','D','U','N','I','O','N','U','S','I',
-  'N','G','V','A','C','U','U','M','V','I','E','W','I','N','D','O','W','B',
-  'Y','I','N','I','T','I','A','L','L','Y','P','R','I','M','A','R','Y',
-};
-/* aKWHash[i] is the hash value for the i-th keyword */
-static const unsigned char aKWHash[127] = {
-    84, 102, 132,  82, 114,  29,   0,   0,  91,   0,  85,  72,   0,
-    53,  35,  86,  15,   0,  42,  94,  54, 126, 133,  19,   0,   0,
-   138,   0,  40, 128,   0,  22, 104,   0,   9,   0,   0, 122,  80,
-     0,  78,   6,   0,  65,  99, 145,   0, 134, 112,   0,   0,  48,
-     0, 100,  24,   0,  17,   0,  27,  70,  23,  26,   5,  60, 140,
-   107, 121,   0,  73, 101,  71, 143,  61, 119,  74,   0,  49,   0,
-    11,  41,   0, 110,   0,   0,   0, 106,  10, 108, 113, 124,  14,
-    50, 123,   0,  89,   0,  18, 120, 142,  56, 129, 137,  88,  83,
-    37,  30, 125,   0,   0, 105,  51, 130, 127,   0,  34,   0,   0,
-    44,   0,  95,  38,  39,   0,  20,  45, 116,  90,
-};
-/* aKWNext[] forms the hash collision chain.  If aKWHash[i]==0
-** then the i-th keyword has no more hash collisions.  Otherwise,
-** the next keyword with the same hash is aKWHash[i]-1. */
-static const unsigned char aKWNext[145] = {
-     0,   0,   0,   0,   4,   0,  43,   0,   0, 103, 111,   0,   0,
-     0,   2,   0,   0, 141,   0,   0,   0,  13,   0,   0,   0,   0,
-   139,   0,   0, 118,  52,   0,   0, 135,  12,   0,   0,  62,   0,
-   136,   0, 131,   0,   0,  36,   0,   0,  28,  77,   0,   0,   0,
-     0,  59,   0,  47,   0,   0,   0,   0,   0,   0,   0,   0,   0,
-     0,  69,   0,   0,   0,   0,   0, 144,   3,   0,  58,   0,   1,
-    75,   0,   0,   0,  31,   0,   0,   0,   0,   0,   0,  64,  66,
-    63,   0,   0,   0,   0,  46,   0,  16,   0, 115,   0,   0,   0,
-     0,   0,   0,   0,   0,   0,   0,  81,  97,   0,   8,   0, 109,
-    21,   7,  67,   0,  79,  93, 117,   0,   0,  68,   0,   0,  96,
-     0,  55,   0,  76,   0,  92,  32,  33,  57,  25,   0,  98,   0,
-     0,  87,
-};
-/* aKWLen[i] is the length (in bytes) of the i-th keyword */
-static const unsigned char aKWLen[145] = {
-     7,   7,   5,   4,   6,   4,   5,   3,   6,   7,   3,   6,   6,
-     7,   7,   3,   8,   2,   6,   5,   4,   4,   3,  10,   4,   7,
-     6,   9,   4,   2,   6,   5,   9,   9,   4,   7,   3,   2,   4,
-     4,   6,  11,   6,   2,   7,   5,   5,   9,   6,  10,   4,   6,
-     2,   3,   7,   5,   9,   6,   6,   4,   5,   5,  10,   6,   5,
-     7,   4,   5,   7,   6,   7,   7,   6,   5,   7,   3,   7,   4,
-     7,   6,  12,   9,   4,   6,   5,   4,   7,   6,   5,   6,   6,
-     7,   6,   4,   5,   9,   5,   6,   3,   8,   8,   2,  13,   2,
-     2,   4,   6,   6,   8,   5,  17,  12,   7,   9,   4,   9,   4,
-     4,   6,   7,   5,   9,   4,   4,   5,   2,   5,   8,   6,   4,
-     5,   8,   4,   3,   9,   5,   5,   6,   4,   6,   2,   2,   9,
-     3,   7,
-};
-/* aKWOffset[i] is the index into zKWText[] of the start of
-** the text for the i-th keyword. */
-static const unsigned short int aKWOffset[145] = {
-     0,   2,   2,   8,   9,  14,  16,  20,  23,  25,  25,  29,  33,
-    36,  41,  46,  48,  53,  54,  59,  62,  65,  67,  69,  78,  81,
-    86,  90,  90,  94,  99, 101, 105, 111, 119, 123, 123, 123, 126,
-   129, 132, 137, 142, 146, 147, 152, 156, 160, 168, 174, 181, 184,
-   184, 187, 189, 195, 198, 206, 211, 216, 219, 222, 226, 236, 239,
-   244, 244, 248, 252, 259, 265, 271, 277, 277, 283, 284, 288, 295,
-   299, 306, 312, 324, 333, 335, 341, 346, 348, 355, 360, 365, 371,
-   377, 382, 388, 392, 395, 404, 408, 414, 416, 423, 424, 431, 433,
-   435, 444, 448, 454, 460, 468, 473, 473, 473, 489, 498, 501, 510,
-   513, 517, 522, 529, 534, 543, 547, 550, 555, 557, 561, 569, 575,
-   578, 583, 591, 591, 595, 604, 609, 614, 620, 623, 626, 629, 631,
-   636, 640,
-};
-/* aKWCode[i] is the parser symbol code for the i-th keyword */
-static const unsigned char aKWCode[145] = {
-  TK_REINDEX,    TK_INDEXED,    TK_INDEX,      TK_DESC,       TK_ESCAPE,     
-  TK_EACH,       TK_CHECK,      TK_KEY,        TK_BEFORE,     TK_FOREIGN,    
-  TK_FOR,        TK_IGNORE,     TK_LIKE_KW,    TK_EXPLAIN,    TK_INSTEAD,    
-  TK_ADD,        TK_DATABASE,   TK_AS,         TK_SELECT,     TK_TABLE,      
-  TK_JOIN_KW,    TK_THEN,       TK_END,        TK_DEFERRABLE, TK_ELSE,       
-  TK_EXCLUDE,    TK_DELETE,     TK_TEMP,       TK_TEMP,       TK_OR,         
-  TK_ISNULL,     TK_NULLS,      TK_SAVEPOINT,  TK_INTERSECT,  TK_TIES,       
-  TK_NOTNULL,    TK_NOT,        TK_NO,         TK_NULL,       TK_LIKE_KW,    
-  TK_EXCEPT,     TK_TRANSACTION,TK_ACTION,     TK_ON,         TK_JOIN_KW,    
-  TK_ALTER,      TK_RAISE,      TK_EXCLUSIVE,  TK_EXISTS,     TK_CONSTRAINT, 
-  TK_INTO,       TK_OFFSET,     TK_OF,         TK_SET,        TK_TRIGGER,    
-  TK_RANGE,      TK_GENERATED,  TK_DETACH,     TK_HAVING,     TK_LIKE_KW,    
-  TK_BEGIN,      TK_JOIN_KW,    TK_REFERENCES, TK_UNIQUE,     TK_QUERY,      
-  TK_WITHOUT,    TK_WITH,       TK_JOIN_KW,    TK_RELEASE,    TK_ATTACH,     
-  TK_BETWEEN,    TK_NOTHING,    TK_GROUPS,     TK_GROUP,      TK_CASCADE,    
-  TK_ASC,        TK_DEFAULT,    TK_CASE,       TK_COLLATE,    TK_CREATE,     
-  TK_CTIME_KW,   TK_IMMEDIATE,  TK_JOIN,       TK_INSERT,     TK_MATCH,      
-  TK_PLAN,       TK_ANALYZE,    TK_PRAGMA,     TK_ABORT,      TK_UPDATE,     
-  TK_VALUES,     TK_VIRTUAL,    TK_ALWAYS,     TK_WHEN,       TK_WHERE,      
-  TK_RECURSIVE,  TK_AFTER,      TK_RENAME,     TK_AND,        TK_DEFERRED,   
-  TK_DISTINCT,   TK_IS,         TK_AUTOINCR,   TK_TO,         TK_IN,         
-  TK_CAST,       TK_COLUMNKW,   TK_COMMIT,     TK_CONFLICT,   TK_JOIN_KW,    
-  TK_CTIME_KW,   TK_CTIME_KW,   TK_CURRENT,    TK_PARTITION,  TK_DROP,       
-  TK_PRECEDING,  TK_FAIL,       TK_LAST,       TK_FILTER,     TK_REPLACE,    
-  TK_FIRST,      TK_FOLLOWING,  TK_FROM,       TK_JOIN_KW,    TK_LIMIT,      
-  TK_IF,         TK_ORDER,      TK_RESTRICT,   TK_OTHERS,     TK_OVER,       
-  TK_JOIN_KW,    TK_ROLLBACK,   TK_ROWS,       TK_ROW,        TK_UNBOUNDED,  
-  TK_UNION,      TK_USING,      TK_VACUUM,     TK_VIEW,       TK_WINDOW,     
-  TK_DO,         TK_BY,         TK_INITIALLY,  TK_ALL,        TK_PRIMARY,    
-};
-/* Hash table decoded:
-**   0: INSERT
-**   1: IS
-**   2: ROLLBACK TRIGGER
-**   3: IMMEDIATE
-**   4: PARTITION
-**   5: TEMP
-**   6:
-**   7:
-**   8: VALUES WITHOUT
-**   9:
-**  10: MATCH
-**  11: NOTHING
-**  12:
-**  13: OF
-**  14: TIES IGNORE
-**  15: PLAN
-**  16: INSTEAD INDEXED
-**  17:
-**  18: TRANSACTION RIGHT
-**  19: WHEN
-**  20: SET HAVING
-**  21: IF
-**  22: ROWS
-**  23: SELECT
-**  24:
-**  25:
-**  26: VACUUM SAVEPOINT
-**  27:
-**  28: LIKE UNION VIRTUAL REFERENCES
-**  29: RESTRICT
-**  30:
-**  31: THEN REGEXP
-**  32: TO
-**  33:
-**  34: BEFORE
-**  35:
-**  36:
-**  37: FOLLOWING COLLATE CASCADE
-**  38: CREATE
-**  39:
-**  40: CASE REINDEX
-**  41: EACH
-**  42:
-**  43: QUERY
-**  44: AND ADD
-**  45: PRIMARY ANALYZE
-**  46:
-**  47: ROW ASC DETACH
-**  48: CURRENT_TIME CURRENT_DATE
-**  49:
-**  50:
-**  51: EXCLUSIVE TEMPORARY
-**  52:
-**  53: DEFERRED
-**  54: DEFERRABLE
-**  55:
-**  56: DATABASE
-**  57:
-**  58: DELETE VIEW GENERATED
-**  59: ATTACH
-**  60: END
-**  61: EXCLUDE
-**  62: ESCAPE DESC
-**  63: GLOB
-**  64: WINDOW ELSE
-**  65: COLUMN
-**  66: FIRST
-**  67:
-**  68: GROUPS ALL
-**  69: DISTINCT DROP KEY
-**  70: BETWEEN
-**  71: INITIALLY
-**  72: BEGIN
-**  73: FILTER CHECK ACTION
-**  74: GROUP INDEX
-**  75:
-**  76: EXISTS DEFAULT
-**  77:
-**  78: FOR CURRENT_TIMESTAMP
-**  79: EXCEPT
-**  80:
-**  81: CROSS
-**  82:
-**  83:
-**  84:
-**  85: CAST
-**  86: FOREIGN AUTOINCREMENT
-**  87: COMMIT
-**  88: CURRENT AFTER ALTER
-**  89: FULL FAIL CONFLICT
-**  90: EXPLAIN
-**  91: CONSTRAINT
-**  92: FROM ALWAYS
-**  93:
-**  94: ABORT
-**  95:
-**  96: AS DO
-**  97: REPLACE WITH RELEASE
-**  98: BY RENAME
-**  99: RANGE RAISE
-** 100: OTHERS
-** 101: USING NULLS
-** 102: PRAGMA
-** 103: JOIN ISNULL OFFSET
-** 104: NOT
-** 105: OR LAST LEFT
-** 106: LIMIT
-** 107:
-** 108:
-** 109: IN
-** 110: INTO
-** 111: OVER RECURSIVE
-** 112: ORDER OUTER
-** 113:
-** 114: INTERSECT UNBOUNDED
-** 115:
-** 116:
-** 117: ON
-** 118:
-** 119: WHERE
-** 120: NO INNER
-** 121: NULL
-** 122:
-** 123: TABLE
-** 124: NATURAL NOTNULL
-** 125: PRECEDING
-** 126: UPDATE UNIQUE
-*/
-/* Check to see if z[0..n-1] is a keyword. If it is, write the
-** parser symbol code for that keyword into *pType.  Always
-** return the integer n (the length of the token). */
-static int keywordCode(const char *z, int n, int *pType){
-  int i, j;
-  const char *zKW;
-  if( n>=2 ){
-    i = ((charMap(z[0])*4) ^ (charMap(z[n-1])*3) ^ n) % 127;
-    for(i=((int)aKWHash[i])-1; i>=0; i=((int)aKWNext[i])-1){
-      if( aKWLen[i]!=n ) continue;
-      j = 0;
-      zKW = &zKWText[aKWOffset[i]];
-#ifdef SQLITE_ASCII
-      while( j<n && (z[j]&~0x20)==zKW[j] ){ j++; }
-#endif
-#ifdef SQLITE_EBCDIC
-      while( j<n && toupper(z[j])==zKW[j] ){ j++; }
-#endif
-      if( j<n ) continue;
-      testcase( i==0 ); /* REINDEX */
-      testcase( i==1 ); /* INDEXED */
-      testcase( i==2 ); /* INDEX */
-      testcase( i==3 ); /* DESC */
-      testcase( i==4 ); /* ESCAPE */
-      testcase( i==5 ); /* EACH */
-      testcase( i==6 ); /* CHECK */
-      testcase( i==7 ); /* KEY */
-      testcase( i==8 ); /* BEFORE */
-      testcase( i==9 ); /* FOREIGN */
-      testcase( i==10 ); /* FOR */
-      testcase( i==11 ); /* IGNORE */
-      testcase( i==12 ); /* REGEXP */
-      testcase( i==13 ); /* EXPLAIN */
-      testcase( i==14 ); /* INSTEAD */
-      testcase( i==15 ); /* ADD */
-      testcase( i==16 ); /* DATABASE */
-      testcase( i==17 ); /* AS */
-      testcase( i==18 ); /* SELECT */
-      testcase( i==19 ); /* TABLE */
-      testcase( i==20 ); /* LEFT */
-      testcase( i==21 ); /* THEN */
-      testcase( i==22 ); /* END */
-      testcase( i==23 ); /* DEFERRABLE */
-      testcase( i==24 ); /* ELSE */
-      testcase( i==25 ); /* EXCLUDE */
-      testcase( i==26 ); /* DELETE */
-      testcase( i==27 ); /* TEMPORARY */
-      testcase( i==28 ); /* TEMP */
-      testcase( i==29 ); /* OR */
-      testcase( i==30 ); /* ISNULL */
-      testcase( i==31 ); /* NULLS */
-      testcase( i==32 ); /* SAVEPOINT */
-      testcase( i==33 ); /* INTERSECT */
-      testcase( i==34 ); /* TIES */
-      testcase( i==35 ); /* NOTNULL */
-      testcase( i==36 ); /* NOT */
-      testcase( i==37 ); /* NO */
-      testcase( i==38 ); /* NULL */
-      testcase( i==39 ); /* LIKE */
-      testcase( i==40 ); /* EXCEPT */
-      testcase( i==41 ); /* TRANSACTION */
-      testcase( i==42 ); /* ACTION */
-      testcase( i==43 ); /* ON */
-      testcase( i==44 ); /* NATURAL */
-      testcase( i==45 ); /* ALTER */
-      testcase( i==46 ); /* RAISE */
-      testcase( i==47 ); /* EXCLUSIVE */
-      testcase( i==48 ); /* EXISTS */
-      testcase( i==49 ); /* CONSTRAINT */
-      testcase( i==50 ); /* INTO */
-      testcase( i==51 ); /* OFFSET */
-      testcase( i==52 ); /* OF */
-      testcase( i==53 ); /* SET */
-      testcase( i==54 ); /* TRIGGER */
-      testcase( i==55 ); /* RANGE */
-      testcase( i==56 ); /* GENERATED */
-      testcase( i==57 ); /* DETACH */
-      testcase( i==58 ); /* HAVING */
-      testcase( i==59 ); /* GLOB */
-      testcase( i==60 ); /* BEGIN */
-      testcase( i==61 ); /* INNER */
-      testcase( i==62 ); /* REFERENCES */
-      testcase( i==63 ); /* UNIQUE */
-      testcase( i==64 ); /* QUERY */
-      testcase( i==65 ); /* WITHOUT */
-      testcase( i==66 ); /* WITH */
-      testcase( i==67 ); /* OUTER */
-      testcase( i==68 ); /* RELEASE */
-      testcase( i==69 ); /* ATTACH */
-      testcase( i==70 ); /* BETWEEN */
-      testcase( i==71 ); /* NOTHING */
-      testcase( i==72 ); /* GROUPS */
-      testcase( i==73 ); /* GROUP */
-      testcase( i==74 ); /* CASCADE */
-      testcase( i==75 ); /* ASC */
-      testcase( i==76 ); /* DEFAULT */
-      testcase( i==77 ); /* CASE */
-      testcase( i==78 ); /* COLLATE */
-      testcase( i==79 ); /* CREATE */
-      testcase( i==80 ); /* CURRENT_DATE */
-      testcase( i==81 ); /* IMMEDIATE */
-      testcase( i==82 ); /* JOIN */
-      testcase( i==83 ); /* INSERT */
-      testcase( i==84 ); /* MATCH */
-      testcase( i==85 ); /* PLAN */
-      testcase( i==86 ); /* ANALYZE */
-      testcase( i==87 ); /* PRAGMA */
-      testcase( i==88 ); /* ABORT */
-      testcase( i==89 ); /* UPDATE */
-      testcase( i==90 ); /* VALUES */
-      testcase( i==91 ); /* VIRTUAL */
-      testcase( i==92 ); /* ALWAYS */
-      testcase( i==93 ); /* WHEN */
-      testcase( i==94 ); /* WHERE */
-      testcase( i==95 ); /* RECURSIVE */
-      testcase( i==96 ); /* AFTER */
-      testcase( i==97 ); /* RENAME */
-      testcase( i==98 ); /* AND */
-      testcase( i==99 ); /* DEFERRED */
-      testcase( i==100 ); /* DISTINCT */
-      testcase( i==101 ); /* IS */
-      testcase( i==102 ); /* AUTOINCREMENT */
-      testcase( i==103 ); /* TO */
-      testcase( i==104 ); /* IN */
-      testcase( i==105 ); /* CAST */
-      testcase( i==106 ); /* COLUMN */
-      testcase( i==107 ); /* COMMIT */
-      testcase( i==108 ); /* CONFLICT */
-      testcase( i==109 ); /* CROSS */
-      testcase( i==110 ); /* CURRENT_TIMESTAMP */
-      testcase( i==111 ); /* CURRENT_TIME */
-      testcase( i==112 ); /* CURRENT */
-      testcase( i==113 ); /* PARTITION */
-      testcase( i==114 ); /* DROP */
-      testcase( i==115 ); /* PRECEDING */
-      testcase( i==116 ); /* FAIL */
-      testcase( i==117 ); /* LAST */
-      testcase( i==118 ); /* FILTER */
-      testcase( i==119 ); /* REPLACE */
-      testcase( i==120 ); /* FIRST */
-      testcase( i==121 ); /* FOLLOWING */
-      testcase( i==122 ); /* FROM */
-      testcase( i==123 ); /* FULL */
-      testcase( i==124 ); /* LIMIT */
-      testcase( i==125 ); /* IF */
-      testcase( i==126 ); /* ORDER */
-      testcase( i==127 ); /* RESTRICT */
-      testcase( i==128 ); /* OTHERS */
-      testcase( i==129 ); /* OVER */
-      testcase( i==130 ); /* RIGHT */
-      testcase( i==131 ); /* ROLLBACK */
-      testcase( i==132 ); /* ROWS */
-      testcase( i==133 ); /* ROW */
-      testcase( i==134 ); /* UNBOUNDED */
-      testcase( i==135 ); /* UNION */
-      testcase( i==136 ); /* USING */
-      testcase( i==137 ); /* VACUUM */
-      testcase( i==138 ); /* VIEW */
-      testcase( i==139 ); /* WINDOW */
-      testcase( i==140 ); /* DO */
-      testcase( i==141 ); /* BY */
-      testcase( i==142 ); /* INITIALLY */
-      testcase( i==143 ); /* ALL */
-      testcase( i==144 ); /* PRIMARY */
-      *pType = aKWCode[i];
-      break;
-    }
-  }
-  return n;
-}
-SQLITE_PRIVATE int tdsqlite3KeywordCode(const unsigned char *z, int n){
-  int id = TK_ID;
-  keywordCode((char*)z, n, &id);
-  return id;
-}
-#define SQLITE_N_KEYWORD 145
-SQLITE_API int tdsqlite3_keyword_name(int i,const char **pzName,int *pnName){
-  if( i<0 || i>=SQLITE_N_KEYWORD ) return SQLITE_ERROR;
-  *pzName = zKWText + aKWOffset[i];
-  *pnName = aKWLen[i];
-  return SQLITE_OK;
-}
-SQLITE_API int tdsqlite3_keyword_count(void){ return SQLITE_N_KEYWORD; }
-SQLITE_API int tdsqlite3_keyword_check(const char *zName, int nName){
-  return TK_ID!=tdsqlite3KeywordCode((const u8*)zName, nName);
-}
-
-/************** End of keywordhash.h *****************************************/
-/************** Continuing where we left off in tokenize.c *******************/
-
-
-/*
-** If X is a character that can be used in an identifier then
-** IdChar(X) will be true.  Otherwise it is false.
-**
-** For ASCII, any character with the high-order bit set is
-** allowed in an identifier.  For 7-bit characters, 
-** tdsqlite3IsIdChar[X] must be 1.
-**
-** For EBCDIC, the rules are more complex but have the same
-** end result.
-**
-** Ticket #1066.  the SQL standard does not allow '$' in the
-** middle of identifiers.  But many SQL implementations do. 
-** SQLite will allow '$' in identifiers for compatibility.
-** But the feature is undocumented.
-*/
-#ifdef SQLITE_ASCII
-#define IdChar(C)  ((tdsqlite3CtypeMap[(unsigned char)C]&0x46)!=0)
-#endif
-#ifdef SQLITE_EBCDIC
-SQLITE_PRIVATE const char tdsqlite3IsEbcdicIdChar[] = {
-/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */
-    0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,  /* 4x */
-    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0,  /* 5x */
-    0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0,  /* 6x */
-    0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0,  /* 7x */
-    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0,  /* 8x */
-    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0,  /* 9x */
-    1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0,  /* Ax */
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  /* Bx */
-    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1,  /* Cx */
-    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1,  /* Dx */
-    0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1,  /* Ex */
-    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0,  /* Fx */
-};
-#define IdChar(C)  (((c=C)>=0x42 && tdsqlite3IsEbcdicIdChar[c-0x40]))
-#endif
-
-/* Make the IdChar function accessible from ctime.c and alter.c */
-SQLITE_PRIVATE int tdsqlite3IsIdChar(u8 c){ return IdChar(c); }
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-/*
-** Return the id of the next token in string (*pz). Before returning, set
-** (*pz) to point to the byte following the parsed token.
-*/
-static int getToken(const unsigned char **pz){
-  const unsigned char *z = *pz;
-  int t;                          /* Token type to return */
-  do {
-    z += tdsqlite3GetToken(z, &t);
-  }while( t==TK_SPACE );
-  if( t==TK_ID 
-   || t==TK_STRING 
-   || t==TK_JOIN_KW 
-   || t==TK_WINDOW 
-   || t==TK_OVER 
-   || tdsqlite3ParserFallback(t)==TK_ID 
-  ){
-    t = TK_ID;
-  }
-  *pz = z;
-  return t;
-}
-
-/*
-** The following three functions are called immediately after the tokenizer
-** reads the keywords WINDOW, OVER and FILTER, respectively, to determine
-** whether the token should be treated as a keyword or an SQL identifier.
-** This cannot be handled by the usual lemon %fallback method, due to
-** the ambiguity in some constructions. e.g.
-**
-**   SELECT sum(x) OVER ...
-**
-** In the above, "OVER" might be a keyword, or it might be an alias for the 
-** sum(x) expression. If a "%fallback ID OVER" directive were added to 
-** grammar, then SQLite would always treat "OVER" as an alias, making it
-** impossible to call a window-function without a FILTER clause.
-**
-** WINDOW is treated as a keyword if:
-**
-**   * the following token is an identifier, or a keyword that can fallback
-**     to being an identifier, and
-**   * the token after than one is TK_AS.
-**
-** OVER is a keyword if:
-**
-**   * the previous token was TK_RP, and
-**   * the next token is either TK_LP or an identifier.
-**
-** FILTER is a keyword if:
-**
-**   * the previous token was TK_RP, and
-**   * the next token is TK_LP.
-*/
-static int analyzeWindowKeyword(const unsigned char *z){
-  int t;
-  t = getToken(&z);
-  if( t!=TK_ID ) return TK_ID;
-  t = getToken(&z);
-  if( t!=TK_AS ) return TK_ID;
-  return TK_WINDOW;
-}
-static int analyzeOverKeyword(const unsigned char *z, int lastToken){
-  if( lastToken==TK_RP ){
-    int t = getToken(&z);
-    if( t==TK_LP || t==TK_ID ) return TK_OVER;
-  }
-  return TK_ID;
-}
-static int analyzeFilterKeyword(const unsigned char *z, int lastToken){
-  if( lastToken==TK_RP && getToken(&z)==TK_LP ){
-    return TK_FILTER;
-  }
-  return TK_ID;
-}
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-
-/*
-** Return the length (in bytes) of the token that begins at z[0]. 
-** Store the token type in *tokenType before returning.
-*/
-SQLITE_PRIVATE int tdsqlite3GetToken(const unsigned char *z, int *tokenType){
-  int i, c;
-  switch( aiClass[*z] ){  /* Switch on the character-class of the first byte
-                          ** of the token. See the comment on the CC_ defines
-                          ** above. */
-    case CC_SPACE: {
-      testcase( z[0]==' ' );
-      testcase( z[0]=='\t' );
-      testcase( z[0]=='\n' );
-      testcase( z[0]=='\f' );
-      testcase( z[0]=='\r' );
-      for(i=1; tdsqlite3Isspace(z[i]); i++){}
-      *tokenType = TK_SPACE;
-      return i;
-    }
-    case CC_MINUS: {
-      if( z[1]=='-' ){
-        for(i=2; (c=z[i])!=0 && c!='\n'; i++){}
-        *tokenType = TK_SPACE;   /* IMP: R-22934-25134 */
-        return i;
-      }
-      *tokenType = TK_MINUS;
-      return 1;
-    }
-    case CC_LP: {
-      *tokenType = TK_LP;
-      return 1;
-    }
-    case CC_RP: {
-      *tokenType = TK_RP;
-      return 1;
-    }
-    case CC_SEMI: {
-      *tokenType = TK_SEMI;
-      return 1;
-    }
-    case CC_PLUS: {
-      *tokenType = TK_PLUS;
-      return 1;
-    }
-    case CC_STAR: {
-      *tokenType = TK_STAR;
-      return 1;
-    }
-    case CC_SLASH: {
-      if( z[1]!='*' || z[2]==0 ){
-        *tokenType = TK_SLASH;
-        return 1;
-      }
-      for(i=3, c=z[2]; (c!='*' || z[i]!='/') && (c=z[i])!=0; i++){}
-      if( c ) i++;
-      *tokenType = TK_SPACE;   /* IMP: R-22934-25134 */
-      return i;
-    }
-    case CC_PERCENT: {
-      *tokenType = TK_REM;
-      return 1;
-    }
-    case CC_EQ: {
-      *tokenType = TK_EQ;
-      return 1 + (z[1]=='=');
-    }
-    case CC_LT: {
-      if( (c=z[1])=='=' ){
-        *tokenType = TK_LE;
-        return 2;
-      }else if( c=='>' ){
-        *tokenType = TK_NE;
-        return 2;
-      }else if( c=='<' ){
-        *tokenType = TK_LSHIFT;
-        return 2;
-      }else{
-        *tokenType = TK_LT;
-        return 1;
-      }
-    }
-    case CC_GT: {
-      if( (c=z[1])=='=' ){
-        *tokenType = TK_GE;
-        return 2;
-      }else if( c=='>' ){
-        *tokenType = TK_RSHIFT;
-        return 2;
-      }else{
-        *tokenType = TK_GT;
-        return 1;
-      }
-    }
-    case CC_BANG: {
-      if( z[1]!='=' ){
-        *tokenType = TK_ILLEGAL;
-        return 1;
-      }else{
-        *tokenType = TK_NE;
-        return 2;
-      }
-    }
-    case CC_PIPE: {
-      if( z[1]!='|' ){
-        *tokenType = TK_BITOR;
-        return 1;
-      }else{
-        *tokenType = TK_CONCAT;
-        return 2;
-      }
-    }
-    case CC_COMMA: {
-      *tokenType = TK_COMMA;
-      return 1;
-    }
-    case CC_AND: {
-      *tokenType = TK_BITAND;
-      return 1;
-    }
-    case CC_TILDA: {
-      *tokenType = TK_BITNOT;
-      return 1;
-    }
-    case CC_QUOTE: {
-      int delim = z[0];
-      testcase( delim=='`' );
-      testcase( delim=='\'' );
-      testcase( delim=='"' );
-      for(i=1; (c=z[i])!=0; i++){
-        if( c==delim ){
-          if( z[i+1]==delim ){
-            i++;
-          }else{
-            break;
-          }
-        }
-      }
-      if( c=='\'' ){
-        *tokenType = TK_STRING;
-        return i+1;
-      }else if( c!=0 ){
-        *tokenType = TK_ID;
-        return i+1;
-      }else{
-        *tokenType = TK_ILLEGAL;
-        return i;
-      }
-    }
-    case CC_DOT: {
-#ifndef SQLITE_OMIT_FLOATING_POINT
-      if( !tdsqlite3Isdigit(z[1]) )
-#endif
-      {
-        *tokenType = TK_DOT;
-        return 1;
-      }
-      /* If the next character is a digit, this is a floating point
-      ** number that begins with ".".  Fall thru into the next case */
-    }
-    case CC_DIGIT: {
-      testcase( z[0]=='0' );  testcase( z[0]=='1' );  testcase( z[0]=='2' );
-      testcase( z[0]=='3' );  testcase( z[0]=='4' );  testcase( z[0]=='5' );
-      testcase( z[0]=='6' );  testcase( z[0]=='7' );  testcase( z[0]=='8' );
-      testcase( z[0]=='9' );
-      *tokenType = TK_INTEGER;
-#ifndef SQLITE_OMIT_HEX_INTEGER
-      if( z[0]=='0' && (z[1]=='x' || z[1]=='X') && tdsqlite3Isxdigit(z[2]) ){
-        for(i=3; tdsqlite3Isxdigit(z[i]); i++){}
-        return i;
-      }
-#endif
-      for(i=0; tdsqlite3Isdigit(z[i]); i++){}
-#ifndef SQLITE_OMIT_FLOATING_POINT
-      if( z[i]=='.' ){
-        i++;
-        while( tdsqlite3Isdigit(z[i]) ){ i++; }
-        *tokenType = TK_FLOAT;
-      }
-      if( (z[i]=='e' || z[i]=='E') &&
-           ( tdsqlite3Isdigit(z[i+1]) 
-            || ((z[i+1]=='+' || z[i+1]=='-') && tdsqlite3Isdigit(z[i+2]))
-           )
-      ){
-        i += 2;
-        while( tdsqlite3Isdigit(z[i]) ){ i++; }
-        *tokenType = TK_FLOAT;
-      }
-#endif
-      while( IdChar(z[i]) ){
-        *tokenType = TK_ILLEGAL;
-        i++;
-      }
-      return i;
-    }
-    case CC_QUOTE2: {
-      for(i=1, c=z[0]; c!=']' && (c=z[i])!=0; i++){}
-      *tokenType = c==']' ? TK_ID : TK_ILLEGAL;
-      return i;
-    }
-    case CC_VARNUM: {
-      *tokenType = TK_VARIABLE;
-      for(i=1; tdsqlite3Isdigit(z[i]); i++){}
-      return i;
-    }
-    case CC_DOLLAR:
-    case CC_VARALPHA: {
-      int n = 0;
-      testcase( z[0]=='$' );  testcase( z[0]=='@' );
-      testcase( z[0]==':' );  testcase( z[0]=='#' );
-      *tokenType = TK_VARIABLE;
-      for(i=1; (c=z[i])!=0; i++){
-        if( IdChar(c) ){
-          n++;
-#ifndef SQLITE_OMIT_TCL_VARIABLE
-        }else if( c=='(' && n>0 ){
-          do{
-            i++;
-          }while( (c=z[i])!=0 && !tdsqlite3Isspace(c) && c!=')' );
-          if( c==')' ){
-            i++;
-          }else{
-            *tokenType = TK_ILLEGAL;
-          }
-          break;
-        }else if( c==':' && z[i+1]==':' ){
-          i++;
-#endif
-        }else{
-          break;
-        }
-      }
-      if( n==0 ) *tokenType = TK_ILLEGAL;
-      return i;
-    }
-    case CC_KYWD: {
-      for(i=1; aiClass[z[i]]<=CC_KYWD; i++){}
-      if( IdChar(z[i]) ){
-        /* This token started out using characters that can appear in keywords,
-        ** but z[i] is a character not allowed within keywords, so this must
-        ** be an identifier instead */
-        i++;
-        break;
-      }
-      *tokenType = TK_ID;
-      return keywordCode((char*)z, i, tokenType);
-    }
-    case CC_X: {
-#ifndef SQLITE_OMIT_BLOB_LITERAL
-      testcase( z[0]=='x' ); testcase( z[0]=='X' );
-      if( z[1]=='\'' ){
-        *tokenType = TK_BLOB;
-        for(i=2; tdsqlite3Isxdigit(z[i]); i++){}
-        if( z[i]!='\'' || i%2 ){
-          *tokenType = TK_ILLEGAL;
-          while( z[i] && z[i]!='\'' ){ i++; }
-        }
-        if( z[i] ) i++;
-        return i;
-      }
-#endif
-      /* If it is not a BLOB literal, then it must be an ID, since no
-      ** SQL keywords start with the letter 'x'.  Fall through */
-    }
-    case CC_ID: {
-      i = 1;
-      break;
-    }
-    case CC_NUL: {
-      *tokenType = TK_ILLEGAL;
-      return 0;
-    }
-    default: {
-      *tokenType = TK_ILLEGAL;
-      return 1;
-    }
-  }
-  while( IdChar(z[i]) ){ i++; }
-  *tokenType = TK_ID;
-  return i;
-}
-
-/*
-** Run the parser on the given SQL string.  The parser structure is
-** passed in.  An SQLITE_ status code is returned.  If an error occurs
-** then an and attempt is made to write an error message into 
-** memory obtained from tdsqlite3_malloc() and to make *pzErrMsg point to that
-** error message.
-*/
-SQLITE_PRIVATE int tdsqlite3RunParser(Parse *pParse, const char *zSql, char **pzErrMsg){
-  int nErr = 0;                   /* Number of errors encountered */
-  void *pEngine;                  /* The LEMON-generated LALR(1) parser */
-  int n = 0;                      /* Length of the next token token */
-  int tokenType;                  /* type of the next token */
-  int lastTokenParsed = -1;       /* type of the previous token */
-  tdsqlite3 *db = pParse->db;       /* The database connection */
-  int mxSqlLen;                   /* Max length of an SQL string */
-#ifdef tdsqlite3Parser_ENGINEALWAYSONSTACK
-  yyParser sEngine;    /* Space to hold the Lemon-generated Parser object */
-#endif
-  VVA_ONLY( u8 startedWithOom = db->mallocFailed );
-
-  assert( zSql!=0 );
-  mxSqlLen = db->aLimit[SQLITE_LIMIT_SQL_LENGTH];
-  if( db->nVdbeActive==0 ){
-    db->u1.isInterrupted = 0;
-  }
-  pParse->rc = SQLITE_OK;
-  pParse->zTail = zSql;
-  assert( pzErrMsg!=0 );
-#ifdef SQLITE_DEBUG
-  if( db->flags & SQLITE_ParserTrace ){
-    printf("parser: [[[%s]]]\n", zSql);
-    tdsqlite3ParserTrace(stdout, "parser: ");
-  }else{
-    tdsqlite3ParserTrace(0, 0);
-  }
-#endif
-#ifdef tdsqlite3Parser_ENGINEALWAYSONSTACK
-  pEngine = &sEngine;
-  tdsqlite3ParserInit(pEngine, pParse);
-#else
-  pEngine = tdsqlite3ParserAlloc(tdsqlite3Malloc, pParse);
-  if( pEngine==0 ){
-    tdsqlite3OomFault(db);
-    return SQLITE_NOMEM_BKPT;
-  }
-#endif
-  assert( pParse->pNewTable==0 );
-  assert( pParse->pNewTrigger==0 );
-  assert( pParse->nVar==0 );
-  assert( pParse->pVList==0 );
-  pParse->pParentParse = db->pParse;
-  db->pParse = pParse;
-  while( 1 ){
-    n = tdsqlite3GetToken((u8*)zSql, &tokenType);
-    mxSqlLen -= n;
-    if( mxSqlLen<0 ){
-      pParse->rc = SQLITE_TOOBIG;
-      break;
-    }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-    if( tokenType>=TK_WINDOW ){
-      assert( tokenType==TK_SPACE || tokenType==TK_OVER || tokenType==TK_FILTER
-           || tokenType==TK_ILLEGAL || tokenType==TK_WINDOW 
-      );
-#else
-    if( tokenType>=TK_SPACE ){
-      assert( tokenType==TK_SPACE || tokenType==TK_ILLEGAL );
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-      if( db->u1.isInterrupted ){
-        pParse->rc = SQLITE_INTERRUPT;
-        break;
-      }
-      if( tokenType==TK_SPACE ){
-        zSql += n;
-        continue;
-      }
-      if( zSql[0]==0 ){
-        /* Upon reaching the end of input, call the parser two more times
-        ** with tokens TK_SEMI and 0, in that order. */
-        if( lastTokenParsed==TK_SEMI ){
-          tokenType = 0;
-        }else if( lastTokenParsed==0 ){
-          break;
-        }else{
-          tokenType = TK_SEMI;
-        }
-        n = 0;
-#ifndef SQLITE_OMIT_WINDOWFUNC
-      }else if( tokenType==TK_WINDOW ){
-        assert( n==6 );
-        tokenType = analyzeWindowKeyword((const u8*)&zSql[6]);
-      }else if( tokenType==TK_OVER ){
-        assert( n==4 );
-        tokenType = analyzeOverKeyword((const u8*)&zSql[4], lastTokenParsed);
-      }else if( tokenType==TK_FILTER ){
-        assert( n==6 );
-        tokenType = analyzeFilterKeyword((const u8*)&zSql[6], lastTokenParsed);
-#endif /* SQLITE_OMIT_WINDOWFUNC */
-      }else{
-        tdsqlite3ErrorMsg(pParse, "unrecognized token: \"%.*s\"", n, zSql);
-        break;
-      }
-    }
-    pParse->sLastToken.z = zSql;
-    pParse->sLastToken.n = n;
-    tdsqlite3Parser(pEngine, tokenType, pParse->sLastToken);
-    lastTokenParsed = tokenType;
-    zSql += n;
-    assert( db->mallocFailed==0 || pParse->rc!=SQLITE_OK || startedWithOom );
-    if( pParse->rc!=SQLITE_OK ) break;
-  }
-  assert( nErr==0 );
-#ifdef YYTRACKMAXSTACKDEPTH
-  tdsqlite3_mutex_enter(tdsqlite3MallocMutex());
-  tdsqlite3StatusHighwater(SQLITE_STATUS_PARSER_STACK,
-      tdsqlite3ParserStackPeak(pEngine)
-  );
-  tdsqlite3_mutex_leave(tdsqlite3MallocMutex());
-#endif /* YYDEBUG */
-#ifdef tdsqlite3Parser_ENGINEALWAYSONSTACK
-  tdsqlite3ParserFinalize(pEngine);
-#else
-  tdsqlite3ParserFree(pEngine, tdsqlite3_free);
-#endif
-  if( db->mallocFailed ){
-    pParse->rc = SQLITE_NOMEM_BKPT;
-  }
-  if( pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE && pParse->zErrMsg==0 ){
-    pParse->zErrMsg = tdsqlite3MPrintf(db, "%s", tdsqlite3ErrStr(pParse->rc));
-  }
-  assert( pzErrMsg!=0 );
-  if( pParse->zErrMsg ){
-    *pzErrMsg = pParse->zErrMsg;
-    tdsqlite3_log(pParse->rc, "%s in \"%s\"", 
-                *pzErrMsg, pParse->zTail);
-    pParse->zErrMsg = 0;
-    nErr++;
-  }
-  pParse->zTail = zSql;
-  if( pParse->pVdbe && pParse->nErr>0 && pParse->nested==0 ){
-    tdsqlite3VdbeDelete(pParse->pVdbe);
-    pParse->pVdbe = 0;
-  }
-#ifndef SQLITE_OMIT_SHARED_CACHE
-  if( pParse->nested==0 ){
-    tdsqlite3DbFree(db, pParse->aTableLock);
-    pParse->aTableLock = 0;
-    pParse->nTableLock = 0;
-  }
-#endif
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  tdsqlite3_free(pParse->apVtabLock);
-#endif
-
-  if( !IN_SPECIAL_PARSE ){
-    /* If the pParse->declareVtab flag is set, do not delete any table 
-    ** structure built up in pParse->pNewTable. The calling code (see vtab.c)
-    ** will take responsibility for freeing the Table structure.
-    */
-    tdsqlite3DeleteTable(db, pParse->pNewTable);
-  }
-  if( !IN_RENAME_OBJECT ){
-    tdsqlite3DeleteTrigger(db, pParse->pNewTrigger);
-  }
-
-  if( pParse->pWithToFree ) tdsqlite3WithDelete(db, pParse->pWithToFree);
-  tdsqlite3DbFree(db, pParse->pVList);
-  while( pParse->pAinc ){
-    AutoincInfo *p = pParse->pAinc;
-    pParse->pAinc = p->pNext;
-    tdsqlite3DbFreeNN(db, p);
-  }
-  while( pParse->pZombieTab ){
-    Table *p = pParse->pZombieTab;
-    pParse->pZombieTab = p->pNextZombie;
-    tdsqlite3DeleteTable(db, p);
-  }
-  db->pParse = pParse->pParentParse;
-  pParse->pParentParse = 0;
-  assert( nErr==0 || pParse->rc!=SQLITE_OK );
-  return nErr;
-}
-
-
-#ifdef SQLITE_ENABLE_NORMALIZE
-/*
-** Insert a single space character into pStr if the current string
-** ends with an identifier
-*/
-static void addSpaceSeparator(tdsqlite3_str *pStr){
-  if( pStr->nChar && tdsqlite3IsIdChar(pStr->zText[pStr->nChar-1]) ){
-    tdsqlite3_str_append(pStr, " ", 1);
-  }
-}
-
-/*
-** Compute a normalization of the SQL given by zSql[0..nSql-1].  Return
-** the normalization in space obtained from tdsqlite3DbMalloc().  Or return
-** NULL if anything goes wrong or if zSql is NULL.
-*/
-SQLITE_PRIVATE char *tdsqlite3Normalize(
-  Vdbe *pVdbe,       /* VM being reprepared */
-  const char *zSql   /* The original SQL string */
-){
-  tdsqlite3 *db;       /* The database connection */
-  int i;             /* Next unread byte of zSql[] */
-  int n;             /* length of current token */
-  int tokenType;     /* type of current token */
-  int prevType = 0;  /* Previous non-whitespace token */
-  int nParen;        /* Number of nested levels of parentheses */
-  int iStartIN;      /* Start of RHS of IN operator in z[] */
-  int nParenAtIN;    /* Value of nParent at start of RHS of IN operator */
-  u32 j;             /* Bytes of normalized SQL generated so far */
-  tdsqlite3_str *pStr; /* The normalized SQL string under construction */
-
-  db = tdsqlite3VdbeDb(pVdbe);
-  tokenType = -1;
-  nParen = iStartIN = nParenAtIN = 0;
-  pStr = tdsqlite3_str_new(db);
-  assert( pStr!=0 );  /* tdsqlite3_str_new() never returns NULL */
-  for(i=0; zSql[i] && pStr->accError==0; i+=n){
-    if( tokenType!=TK_SPACE ){
-      prevType = tokenType;
-    }
-    n = tdsqlite3GetToken((unsigned char*)zSql+i, &tokenType);
-    if( NEVER(n<=0) ) break;
-    switch( tokenType ){
-      case TK_SPACE: {
-        break;
-      }
-      case TK_NULL: {
-        if( prevType==TK_IS || prevType==TK_NOT ){
-          tdsqlite3_str_append(pStr, " NULL", 5);
-          break;
-        }
-        /* Fall through */
-      }
-      case TK_STRING:
-      case TK_INTEGER:
-      case TK_FLOAT:
-      case TK_VARIABLE:
-      case TK_BLOB: {
-        tdsqlite3_str_append(pStr, "?", 1);
-        break;
-      }
-      case TK_LP: {
-        nParen++;
-        if( prevType==TK_IN ){
-          iStartIN = pStr->nChar;
-          nParenAtIN = nParen;
-        }
-        tdsqlite3_str_append(pStr, "(", 1);
-        break;
-      }
-      case TK_RP: {
-        if( iStartIN>0 && nParen==nParenAtIN ){
-          assert( pStr->nChar>=(u32)iStartIN );
-          pStr->nChar = iStartIN+1;
-          tdsqlite3_str_append(pStr, "?,?,?", 5);
-          iStartIN = 0;
-        }
-        nParen--;
-        tdsqlite3_str_append(pStr, ")", 1);
-        break;
-      }
-      case TK_ID: {
-        iStartIN = 0;
-        j = pStr->nChar;
-        if( tdsqlite3Isquote(zSql[i]) ){
-          char *zId = tdsqlite3DbStrNDup(db, zSql+i, n);
-          int nId;
-          int eType = 0;
-          if( zId==0 ) break;
-          tdsqlite3Dequote(zId);
-          if( zSql[i]=='"' && tdsqlite3VdbeUsesDoubleQuotedString(pVdbe, zId) ){
-            tdsqlite3_str_append(pStr, "?", 1);
-            tdsqlite3DbFree(db, zId);
-            break;
-          }
-          nId = tdsqlite3Strlen30(zId);
-          if( tdsqlite3GetToken((u8*)zId, &eType)==nId && eType==TK_ID ){
-            addSpaceSeparator(pStr);
-            tdsqlite3_str_append(pStr, zId, nId);
-          }else{
-            tdsqlite3_str_appendf(pStr, "\"%w\"", zId);
-          }
-          tdsqlite3DbFree(db, zId);
-        }else{
-          addSpaceSeparator(pStr);
-          tdsqlite3_str_append(pStr, zSql+i, n);
-        }
-        while( j<pStr->nChar ){
-          pStr->zText[j] = tdsqlite3Tolower(pStr->zText[j]);
-          j++;
-        }
-        break;
-      }
-      case TK_SELECT: {
-        iStartIN = 0;
-        /* fall through */
-      }
-      default: {
-        if( tdsqlite3IsIdChar(zSql[i]) ) addSpaceSeparator(pStr);
-        j = pStr->nChar;
-        tdsqlite3_str_append(pStr, zSql+i, n);
-        while( j<pStr->nChar ){
-          pStr->zText[j] = tdsqlite3Toupper(pStr->zText[j]);
-          j++;
-        }
-        break;
-      }
-    }
-  }
-  if( tokenType!=TK_SEMI ) tdsqlite3_str_append(pStr, ";", 1);
-  return tdsqlite3_str_finish(pStr);
-}
-#endif /* SQLITE_ENABLE_NORMALIZE */
-
-/************** End of tokenize.c ********************************************/
-/************** Begin file complete.c ****************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** An tokenizer for SQL
-**
-** This file contains C code that implements the tdsqlite3_complete() API.
-** This code used to be part of the tokenizer.c source file.  But by
-** separating it out, the code will be automatically omitted from
-** static links that do not use it.
-*/
-/* #include "sqliteInt.h" */
-#ifndef SQLITE_OMIT_COMPLETE
-
-/*
-** This is defined in tokenize.c.  We just have to import the definition.
-*/
-#ifndef SQLITE_AMALGAMATION
-#ifdef SQLITE_ASCII
-#define IdChar(C)  ((tdsqlite3CtypeMap[(unsigned char)C]&0x46)!=0)
-#endif
-#ifdef SQLITE_EBCDIC
-SQLITE_PRIVATE const char tdsqlite3IsEbcdicIdChar[];
-#define IdChar(C)  (((c=C)>=0x42 && tdsqlite3IsEbcdicIdChar[c-0x40]))
-#endif
-#endif /* SQLITE_AMALGAMATION */
-
-
-/*
-** Token types used by the tdsqlite3_complete() routine.  See the header
-** comments on that procedure for additional information.
-*/
-#define tkSEMI    0
-#define tkWS      1
-#define tkOTHER   2
-#ifndef SQLITE_OMIT_TRIGGER
-#define tkEXPLAIN 3
-#define tkCREATE  4
-#define tkTEMP    5
-#define tkTRIGGER 6
-#define tkEND     7
-#endif
-
-/*
-** Return TRUE if the given SQL string ends in a semicolon.
-**
-** Special handling is require for CREATE TRIGGER statements.
-** Whenever the CREATE TRIGGER keywords are seen, the statement
-** must end with ";END;".
-**
-** This implementation uses a state machine with 8 states:
-**
-**   (0) INVALID   We have not yet seen a non-whitespace character.
-**
-**   (1) START     At the beginning or end of an SQL statement.  This routine
-**                 returns 1 if it ends in the START state and 0 if it ends
-**                 in any other state.
-**
-**   (2) NORMAL    We are in the middle of statement which ends with a single
-**                 semicolon.
-**
-**   (3) EXPLAIN   The keyword EXPLAIN has been seen at the beginning of 
-**                 a statement.
-**
-**   (4) CREATE    The keyword CREATE has been seen at the beginning of a
-**                 statement, possibly preceded by EXPLAIN and/or followed by
-**                 TEMP or TEMPORARY
-**
-**   (5) TRIGGER   We are in the middle of a trigger definition that must be
-**                 ended by a semicolon, the keyword END, and another semicolon.
-**
-**   (6) SEMI      We've seen the first semicolon in the ";END;" that occurs at
-**                 the end of a trigger definition.
-**
-**   (7) END       We've seen the ";END" of the ";END;" that occurs at the end
-**                 of a trigger definition.
-**
-** Transitions between states above are determined by tokens extracted
-** from the input.  The following tokens are significant:
-**
-**   (0) tkSEMI      A semicolon.
-**   (1) tkWS        Whitespace.
-**   (2) tkOTHER     Any other SQL token.
-**   (3) tkEXPLAIN   The "explain" keyword.
-**   (4) tkCREATE    The "create" keyword.
-**   (5) tkTEMP      The "temp" or "temporary" keyword.
-**   (6) tkTRIGGER   The "trigger" keyword.
-**   (7) tkEND       The "end" keyword.
-**
-** Whitespace never causes a state transition and is always ignored.
-** This means that a SQL string of all whitespace is invalid.
-**
-** If we compile with SQLITE_OMIT_TRIGGER, all of the computation needed
-** to recognize the end of a trigger can be omitted.  All we have to do
-** is look for a semicolon that is not part of an string or comment.
-*/
-SQLITE_API int tdsqlite3_complete(const char *zSql){
-  u8 state = 0;   /* Current state, using numbers defined in header comment */
-  u8 token;       /* Value of the next token */
-
-#ifndef SQLITE_OMIT_TRIGGER
-  /* A complex statement machine used to detect the end of a CREATE TRIGGER
-  ** statement.  This is the normal case.
-  */
-  static const u8 trans[8][8] = {
-                     /* Token:                                                */
-     /* State:       **  SEMI  WS  OTHER  EXPLAIN  CREATE  TEMP  TRIGGER  END */
-     /* 0 INVALID: */ {    1,  0,     2,       3,      4,    2,       2,   2, },
-     /* 1   START: */ {    1,  1,     2,       3,      4,    2,       2,   2, },
-     /* 2  NORMAL: */ {    1,  2,     2,       2,      2,    2,       2,   2, },
-     /* 3 EXPLAIN: */ {    1,  3,     3,       2,      4,    2,       2,   2, },
-     /* 4  CREATE: */ {    1,  4,     2,       2,      2,    4,       5,   2, },
-     /* 5 TRIGGER: */ {    6,  5,     5,       5,      5,    5,       5,   5, },
-     /* 6    SEMI: */ {    6,  6,     5,       5,      5,    5,       5,   7, },
-     /* 7     END: */ {    1,  7,     5,       5,      5,    5,       5,   5, },
-  };
-#else
-  /* If triggers are not supported by this compile then the statement machine
-  ** used to detect the end of a statement is much simpler
-  */
-  static const u8 trans[3][3] = {
-                     /* Token:           */
-     /* State:       **  SEMI  WS  OTHER */
-     /* 0 INVALID: */ {    1,  0,     2, },
-     /* 1   START: */ {    1,  1,     2, },
-     /* 2  NORMAL: */ {    1,  2,     2, },
-  };
-#endif /* SQLITE_OMIT_TRIGGER */
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( zSql==0 ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-
-  while( *zSql ){
-    switch( *zSql ){
-      case ';': {  /* A semicolon */
-        token = tkSEMI;
-        break;
-      }
-      case ' ':
-      case '\r':
-      case '\t':
-      case '\n':
-      case '\f': {  /* White space is ignored */
-        token = tkWS;
-        break;
-      }
-      case '/': {   /* C-style comments */
-        if( zSql[1]!='*' ){
-          token = tkOTHER;
-          break;
-        }
-        zSql += 2;
-        while( zSql[0] && (zSql[0]!='*' || zSql[1]!='/') ){ zSql++; }
-        if( zSql[0]==0 ) return 0;
-        zSql++;
-        token = tkWS;
-        break;
-      }
-      case '-': {   /* SQL-style comments from "--" to end of line */
-        if( zSql[1]!='-' ){
-          token = tkOTHER;
-          break;
-        }
-        while( *zSql && *zSql!='\n' ){ zSql++; }
-        if( *zSql==0 ) return state==1;
-        token = tkWS;
-        break;
-      }
-      case '[': {   /* Microsoft-style identifiers in [...] */
-        zSql++;
-        while( *zSql && *zSql!=']' ){ zSql++; }
-        if( *zSql==0 ) return 0;
-        token = tkOTHER;
-        break;
-      }
-      case '`':     /* Grave-accent quoted symbols used by MySQL */
-      case '"':     /* single- and double-quoted strings */
-      case '\'': {
-        int c = *zSql;
-        zSql++;
-        while( *zSql && *zSql!=c ){ zSql++; }
-        if( *zSql==0 ) return 0;
-        token = tkOTHER;
-        break;
-      }
-      default: {
-#ifdef SQLITE_EBCDIC
-        unsigned char c;
-#endif
-        if( IdChar((u8)*zSql) ){
-          /* Keywords and unquoted identifiers */
-          int nId;
-          for(nId=1; IdChar(zSql[nId]); nId++){}
-#ifdef SQLITE_OMIT_TRIGGER
-          token = tkOTHER;
-#else
-          switch( *zSql ){
-            case 'c': case 'C': {
-              if( nId==6 && tdsqlite3StrNICmp(zSql, "create", 6)==0 ){
-                token = tkCREATE;
-              }else{
-                token = tkOTHER;
-              }
-              break;
-            }
-            case 't': case 'T': {
-              if( nId==7 && tdsqlite3StrNICmp(zSql, "trigger", 7)==0 ){
-                token = tkTRIGGER;
-              }else if( nId==4 && tdsqlite3StrNICmp(zSql, "temp", 4)==0 ){
-                token = tkTEMP;
-              }else if( nId==9 && tdsqlite3StrNICmp(zSql, "temporary", 9)==0 ){
-                token = tkTEMP;
-              }else{
-                token = tkOTHER;
-              }
-              break;
-            }
-            case 'e':  case 'E': {
-              if( nId==3 && tdsqlite3StrNICmp(zSql, "end", 3)==0 ){
-                token = tkEND;
-              }else
-#ifndef SQLITE_OMIT_EXPLAIN
-              if( nId==7 && tdsqlite3StrNICmp(zSql, "explain", 7)==0 ){
-                token = tkEXPLAIN;
-              }else
-#endif
-              {
-                token = tkOTHER;
-              }
-              break;
-            }
-            default: {
-              token = tkOTHER;
-              break;
-            }
-          }
-#endif /* SQLITE_OMIT_TRIGGER */
-          zSql += nId-1;
-        }else{
-          /* Operators and special symbols */
-          token = tkOTHER;
-        }
-        break;
-      }
-    }
-    state = trans[state][token];
-    zSql++;
-  }
-  return state==1;
-}
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** This routine is the same as the tdsqlite3_complete() routine described
-** above, except that the parameter is required to be UTF-16 encoded, not
-** UTF-8.
-*/
-SQLITE_API int tdsqlite3_complete16(const void *zSql){
-  tdsqlite3_value *pVal;
-  char const *zSql8;
-  int rc;
-
-#ifndef SQLITE_OMIT_AUTOINIT
-  rc = tdsqlite3_initialize();
-  if( rc ) return rc;
-#endif
-  pVal = tdsqlite3ValueNew(0);
-  tdsqlite3ValueSetStr(pVal, -1, zSql, SQLITE_UTF16NATIVE, SQLITE_STATIC);
-  zSql8 = tdsqlite3ValueText(pVal, SQLITE_UTF8);
-  if( zSql8 ){
-    rc = tdsqlite3_complete(zSql8);
-  }else{
-    rc = SQLITE_NOMEM_BKPT;
-  }
-  tdsqlite3ValueFree(pVal);
-  return rc & 0xff;
-}
-#endif /* SQLITE_OMIT_UTF16 */
-#endif /* SQLITE_OMIT_COMPLETE */
-
-/************** End of complete.c ********************************************/
-/************** Begin file main.c ********************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Main file for the SQLite library.  The routines in this file
-** implement the programmer interface to the library.  Routines in
-** other files are for internal use by SQLite and should not be
-** accessed by users of the library.
-*/
-/* #include "sqliteInt.h" */
-
-#ifdef SQLITE_ENABLE_FTS3
-/************** Include fts3.h in the middle of main.c ***********************/
-/************** Begin file fts3.h ********************************************/
-/*
-** 2006 Oct 10
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This header file is used by programs that want to link against the
-** FTS3 library.  All it does is declare the tdsqlite3Fts3Init() interface.
-*/
-/* #include "sqlite3.h" */
-
-#if 0
-extern "C" {
-#endif  /* __cplusplus */
-
-SQLITE_PRIVATE int tdsqlite3Fts3Init(tdsqlite3 *db);
-
-#if 0
-}  /* extern "C" */
-#endif  /* __cplusplus */
-
-/************** End of fts3.h ************************************************/
-/************** Continuing where we left off in main.c ***********************/
-#endif
-#ifdef SQLITE_ENABLE_RTREE
-/************** Include rtree.h in the middle of main.c **********************/
-/************** Begin file rtree.h *******************************************/
-/*
-** 2008 May 26
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This header file is used by programs that want to link against the
-** RTREE library.  All it does is declare the tdsqlite3RtreeInit() interface.
-*/
-/* #include "sqlite3.h" */
-
-#ifdef SQLITE_OMIT_VIRTUALTABLE
-# undef SQLITE_ENABLE_RTREE
-#endif
-
-#if 0
-extern "C" {
-#endif  /* __cplusplus */
-
-SQLITE_PRIVATE int tdsqlite3RtreeInit(tdsqlite3 *db);
-
-#if 0
-}  /* extern "C" */
-#endif  /* __cplusplus */
-
-/************** End of rtree.h ***********************************************/
-/************** Continuing where we left off in main.c ***********************/
-#endif
-#if defined(SQLITE_ENABLE_ICU) || defined(SQLITE_ENABLE_ICU_COLLATIONS)
-/************** Include sqliteicu.h in the middle of main.c ******************/
-/************** Begin file sqliteicu.h ***************************************/
-/*
-** 2008 May 26
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This header file is used by programs that want to link against the
-** ICU extension.  All it does is declare the tdsqlite3IcuInit() interface.
-*/
-/* #include "sqlite3.h" */
-
-#if 0
-extern "C" {
-#endif  /* __cplusplus */
-
-SQLITE_PRIVATE int tdsqlite3IcuInit(tdsqlite3 *db);
-
-#if 0
-}  /* extern "C" */
-#endif  /* __cplusplus */
-
-
-/************** End of sqliteicu.h *******************************************/
-/************** Continuing where we left off in main.c ***********************/
-#endif
-#ifdef SQLITE_ENABLE_JSON1
-SQLITE_PRIVATE int tdsqlite3Json1Init(tdsqlite3*);
-#endif
-#ifdef SQLITE_ENABLE_STMTVTAB
-SQLITE_PRIVATE int tdsqlite3StmtVtabInit(tdsqlite3*);
-#endif
-#ifdef SQLITE_ENABLE_FTS5
-SQLITE_PRIVATE int tdsqlite3Fts5Init(tdsqlite3*);
-#endif
-
-#ifndef SQLITE_AMALGAMATION
-/* IMPLEMENTATION-OF: R-46656-45156 The tdsqlite3_version[] string constant
-** contains the text of SQLITE_VERSION macro. 
-*/
-SQLITE_API const char tdsqlite3_version[] = SQLITE_VERSION;
-#endif
-
-/* IMPLEMENTATION-OF: R-53536-42575 The tdsqlite3_libversion() function returns
-** a pointer to the to the tdsqlite3_version[] string constant. 
-*/
-SQLITE_API const char *tdsqlite3_libversion(void){ return tdsqlite3_version; }
-
-/* IMPLEMENTATION-OF: R-25063-23286 The tdsqlite3_sourceid() function returns a
-** pointer to a string constant whose value is the same as the
-** SQLITE_SOURCE_ID C preprocessor macro. Except if SQLite is built using
-** an edited copy of the amalgamation, then the last four characters of
-** the hash might be different from SQLITE_SOURCE_ID.
-*/
-/* SQLITE_API const char *tdsqlite3_sourceid(void){ return SQLITE_SOURCE_ID; } */
-
-/* IMPLEMENTATION-OF: R-35210-63508 The tdsqlite3_libversion_number() function
-** returns an integer equal to SQLITE_VERSION_NUMBER.
-*/
-SQLITE_API int tdsqlite3_libversion_number(void){ return SQLITE_VERSION_NUMBER; }
-
-/* IMPLEMENTATION-OF: R-20790-14025 The tdsqlite3_threadsafe() function returns
-** zero if and only if SQLite was compiled with mutexing code omitted due to
-** the SQLITE_THREADSAFE compile-time option being set to 0.
-*/
-SQLITE_API int tdsqlite3_threadsafe(void){ return SQLITE_THREADSAFE; }
-
-/*
-** When compiling the test fixture or with debugging enabled (on Win32),
-** this variable being set to non-zero will cause OSTRACE macros to emit
-** extra diagnostic information.
-*/
-#ifdef SQLITE_HAVE_OS_TRACE
-# ifndef SQLITE_DEBUG_OS_TRACE
-#   define SQLITE_DEBUG_OS_TRACE 0
-# endif
-  int tdsqlite3OSTrace = SQLITE_DEBUG_OS_TRACE;
-#endif
-
-#if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
-/*
-** If the following function pointer is not NULL and if
-** SQLITE_ENABLE_IOTRACE is enabled, then messages describing
-** I/O active are written using this function.  These messages
-** are intended for debugging activity only.
-*/
-SQLITE_API void (SQLITE_CDECL *tdsqlite3IoTrace)(const char*, ...) = 0;
-#endif
-
-/*
-** If the following global variable points to a string which is the
-** name of a directory, then that directory will be used to store
-** temporary files.
-**
-** See also the "PRAGMA temp_store_directory" SQL command.
-*/
-SQLITE_API char *tdsqlite3_temp_directory = 0;
-
-/*
-** If the following global variable points to a string which is the
-** name of a directory, then that directory will be used to store
-** all database files specified with a relative pathname.
-**
-** See also the "PRAGMA data_store_directory" SQL command.
-*/
-SQLITE_API char *tdsqlite3_data_directory = 0;
-
-/*
-** Initialize SQLite.  
-**
-** This routine must be called to initialize the memory allocation,
-** VFS, and mutex subsystems prior to doing any serious work with
-** SQLite.  But as long as you do not compile with SQLITE_OMIT_AUTOINIT
-** this routine will be called automatically by key routines such as
-** tdsqlite3_open().  
-**
-** This routine is a no-op except on its very first call for the process,
-** or for the first call after a call to tdsqlite3_shutdown.
-**
-** The first thread to call this routine runs the initialization to
-** completion.  If subsequent threads call this routine before the first
-** thread has finished the initialization process, then the subsequent
-** threads must block until the first thread finishes with the initialization.
-**
-** The first thread might call this routine recursively.  Recursive
-** calls to this routine should not block, of course.  Otherwise the
-** initialization process would never complete.
-**
-** Let X be the first thread to enter this routine.  Let Y be some other
-** thread.  Then while the initial invocation of this routine by X is
-** incomplete, it is required that:
-**
-**    *  Calls to this routine from Y must block until the outer-most
-**       call by X completes.
-**
-**    *  Recursive calls to this routine from thread X return immediately
-**       without blocking.
-*/
-SQLITE_API int tdsqlite3_initialize(void){
-  MUTEX_LOGIC( tdsqlite3_mutex *pMaster; )       /* The main static mutex */
-  int rc;                                      /* Result code */
-#ifdef SQLITE_EXTRA_INIT
-  int bRunExtraInit = 0;                       /* Extra initialization needed */
-#endif
-
-#ifdef SQLITE_OMIT_WSD
-  rc = tdsqlite3_wsd_init(4096, 24);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-#endif
-
-  /* If the following assert() fails on some obscure processor/compiler
-  ** combination, the work-around is to set the correct pointer
-  ** size at compile-time using -DSQLITE_PTRSIZE=n compile-time option */
-  assert( SQLITE_PTRSIZE==sizeof(char*) );
-
-  /* If SQLite is already completely initialized, then this call
-  ** to tdsqlite3_initialize() should be a no-op.  But the initialization
-  ** must be complete.  So isInit must not be set until the very end
-  ** of this routine.
-  */
-  if( tdsqlite3GlobalConfig.isInit ) return SQLITE_OK;
-
-  /* Make sure the mutex subsystem is initialized.  If unable to 
-  ** initialize the mutex subsystem, return early with the error.
-  ** If the system is so sick that we are unable to allocate a mutex,
-  ** there is not much SQLite is going to be able to do.
-  **
-  ** The mutex subsystem must take care of serializing its own
-  ** initialization.
-  */
-  rc = tdsqlite3MutexInit();
-  if( rc ) return rc;
-
-  /* Initialize the malloc() system and the recursive pInitMutex mutex.
-  ** This operation is protected by the STATIC_MASTER mutex.  Note that
-  ** MutexAlloc() is called for a static mutex prior to initializing the
-  ** malloc subsystem - this implies that the allocation of a static
-  ** mutex must not require support from the malloc subsystem.
-  */
-  MUTEX_LOGIC( pMaster = tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); )
-  tdsqlite3_mutex_enter(pMaster);
-  tdsqlite3GlobalConfig.isMutexInit = 1;
-  if( !tdsqlite3GlobalConfig.isMallocInit ){
-    rc = tdsqlite3MallocInit();
-  }
-  if( rc==SQLITE_OK ){
-    tdsqlite3GlobalConfig.isMallocInit = 1;
-    if( !tdsqlite3GlobalConfig.pInitMutex ){
-      tdsqlite3GlobalConfig.pInitMutex =
-           tdsqlite3MutexAlloc(SQLITE_MUTEX_RECURSIVE);
-      if( tdsqlite3GlobalConfig.bCoreMutex && !tdsqlite3GlobalConfig.pInitMutex ){
-        rc = SQLITE_NOMEM_BKPT;
-      }
-    }
-  }
-  if( rc==SQLITE_OK ){
-    tdsqlite3GlobalConfig.nRefInitMutex++;
-  }
-  tdsqlite3_mutex_leave(pMaster);
-
-  /* If rc is not SQLITE_OK at this point, then either the malloc
-  ** subsystem could not be initialized or the system failed to allocate
-  ** the pInitMutex mutex. Return an error in either case.  */
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  /* Do the rest of the initialization under the recursive mutex so
-  ** that we will be able to handle recursive calls into
-  ** tdsqlite3_initialize().  The recursive calls normally come through
-  ** tdsqlite3_os_init() when it invokes tdsqlite3_vfs_register(), but other
-  ** recursive calls might also be possible.
-  **
-  ** IMPLEMENTATION-OF: R-00140-37445 SQLite automatically serializes calls
-  ** to the xInit method, so the xInit method need not be threadsafe.
-  **
-  ** The following mutex is what serializes access to the appdef pcache xInit
-  ** methods.  The tdsqlite3_pcache_methods.xInit() all is embedded in the
-  ** call to tdsqlite3PcacheInitialize().
-  */
-  tdsqlite3_mutex_enter(tdsqlite3GlobalConfig.pInitMutex);
-  if( tdsqlite3GlobalConfig.isInit==0 && tdsqlite3GlobalConfig.inProgress==0 ){
-    tdsqlite3GlobalConfig.inProgress = 1;
-#ifdef SQLITE_ENABLE_SQLLOG
-    {
-      extern void tdsqlite3_init_sqllog(void);
-      tdsqlite3_init_sqllog();
-    }
-#endif
-    memset(&tdsqlite3BuiltinFunctions, 0, sizeof(tdsqlite3BuiltinFunctions));
-    tdsqlite3RegisterBuiltinFunctions();
-    if( tdsqlite3GlobalConfig.isPCacheInit==0 ){
-      rc = tdsqlite3PcacheInitialize();
-    }
-    if( rc==SQLITE_OK ){
-      tdsqlite3GlobalConfig.isPCacheInit = 1;
-      rc = tdsqlite3OsInit();
-    }
-#ifdef SQLITE_ENABLE_DESERIALIZE
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3MemdbInit();
-    }
-#endif
-    if( rc==SQLITE_OK ){
-      tdsqlite3PCacheBufferSetup( tdsqlite3GlobalConfig.pPage, 
-          tdsqlite3GlobalConfig.szPage, tdsqlite3GlobalConfig.nPage);
-      tdsqlite3GlobalConfig.isInit = 1;
-#ifdef SQLITE_EXTRA_INIT
-      bRunExtraInit = 1;
-#endif
-    }
-    tdsqlite3GlobalConfig.inProgress = 0;
-  }
-  tdsqlite3_mutex_leave(tdsqlite3GlobalConfig.pInitMutex);
-
-  /* Go back under the static mutex and clean up the recursive
-  ** mutex to prevent a resource leak.
-  */
-  tdsqlite3_mutex_enter(pMaster);
-  tdsqlite3GlobalConfig.nRefInitMutex--;
-  if( tdsqlite3GlobalConfig.nRefInitMutex<=0 ){
-    assert( tdsqlite3GlobalConfig.nRefInitMutex==0 );
-    tdsqlite3_mutex_free(tdsqlite3GlobalConfig.pInitMutex);
-    tdsqlite3GlobalConfig.pInitMutex = 0;
-  }
-  tdsqlite3_mutex_leave(pMaster);
-
-  /* The following is just a sanity check to make sure SQLite has
-  ** been compiled correctly.  It is important to run this code, but
-  ** we don't want to run it too often and soak up CPU cycles for no
-  ** reason.  So we run it once during initialization.
-  */
-#ifndef NDEBUG
-#ifndef SQLITE_OMIT_FLOATING_POINT
-  /* This section of code's only "output" is via assert() statements. */
-  if( rc==SQLITE_OK ){
-    u64 x = (((u64)1)<<63)-1;
-    double y;
-    assert(sizeof(x)==8);
-    assert(sizeof(x)==sizeof(y));
-    memcpy(&y, &x, 8);
-    assert( tdsqlite3IsNaN(y) );
-  }
-#endif
-#endif
-
-  /* Do extra initialization steps requested by the SQLITE_EXTRA_INIT
-  ** compile-time option.
-  */
-#ifdef SQLITE_EXTRA_INIT
-  if( bRunExtraInit ){
-    int SQLITE_EXTRA_INIT(const char*);
-    rc = SQLITE_EXTRA_INIT(0);
-  }
-#endif
-
-  return rc;
-}
-
-/*
-** Undo the effects of tdsqlite3_initialize().  Must not be called while
-** there are outstanding database connections or memory allocations or
-** while any part of SQLite is otherwise in use in any thread.  This
-** routine is not threadsafe.  But it is safe to invoke this routine
-** on when SQLite is already shut down.  If SQLite is already shut down
-** when this routine is invoked, then this routine is a harmless no-op.
-*/
-SQLITE_API int tdsqlite3_shutdown(void){
-#ifdef SQLITE_OMIT_WSD
-  int rc = tdsqlite3_wsd_init(4096, 24);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-#endif
-
-  if( tdsqlite3GlobalConfig.isInit ){
-#ifdef SQLITE_EXTRA_SHUTDOWN
-    void SQLITE_EXTRA_SHUTDOWN(void);
-    SQLITE_EXTRA_SHUTDOWN();
-#endif
-    tdsqlite3_os_end();
-    tdsqlite3_reset_auto_extension();
-    tdsqlite3GlobalConfig.isInit = 0;
-  }
-  if( tdsqlite3GlobalConfig.isPCacheInit ){
-    tdsqlite3PcacheShutdown();
-    tdsqlite3GlobalConfig.isPCacheInit = 0;
-  }
-  if( tdsqlite3GlobalConfig.isMallocInit ){
-    tdsqlite3MallocEnd();
-    tdsqlite3GlobalConfig.isMallocInit = 0;
-
-#ifndef SQLITE_OMIT_SHUTDOWN_DIRECTORIES
-    /* The heap subsystem has now been shutdown and these values are supposed
-    ** to be NULL or point to memory that was obtained from tdsqlite3_malloc(),
-    ** which would rely on that heap subsystem; therefore, make sure these
-    ** values cannot refer to heap memory that was just invalidated when the
-    ** heap subsystem was shutdown.  This is only done if the current call to
-    ** this function resulted in the heap subsystem actually being shutdown.
-    */
-    tdsqlite3_data_directory = 0;
-    tdsqlite3_temp_directory = 0;
-#endif
-  }
-  if( tdsqlite3GlobalConfig.isMutexInit ){
-    tdsqlite3MutexEnd();
-    tdsqlite3GlobalConfig.isMutexInit = 0;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** This API allows applications to modify the global configuration of
-** the SQLite library at run-time.
-**
-** This routine should only be called when there are no outstanding
-** database connections or memory allocations.  This routine is not
-** threadsafe.  Failure to heed these warnings can lead to unpredictable
-** behavior.
-*/
-SQLITE_API int tdsqlite3_config(int op, ...){
-  va_list ap;
-  int rc = SQLITE_OK;
-
-  /* tdsqlite3_config() shall return SQLITE_MISUSE if it is invoked while
-  ** the SQLite library is in use. */
-  if( tdsqlite3GlobalConfig.isInit ) return SQLITE_MISUSE_BKPT;
-
-  va_start(ap, op);
-  switch( op ){
-
-    /* Mutex configuration options are only available in a threadsafe
-    ** compile.
-    */
-#if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0  /* IMP: R-54466-46756 */
-    case SQLITE_CONFIG_SINGLETHREAD: {
-      /* EVIDENCE-OF: R-02748-19096 This option sets the threading mode to
-      ** Single-thread. */
-      tdsqlite3GlobalConfig.bCoreMutex = 0;  /* Disable mutex on core */
-      tdsqlite3GlobalConfig.bFullMutex = 0;  /* Disable mutex on connections */
-      break;
-    }
-#endif
-#if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-20520-54086 */
-    case SQLITE_CONFIG_MULTITHREAD: {
-      /* EVIDENCE-OF: R-14374-42468 This option sets the threading mode to
-      ** Multi-thread. */
-      tdsqlite3GlobalConfig.bCoreMutex = 1;  /* Enable mutex on core */
-      tdsqlite3GlobalConfig.bFullMutex = 0;  /* Disable mutex on connections */
-      break;
-    }
-#endif
-#if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-59593-21810 */
-    case SQLITE_CONFIG_SERIALIZED: {
-      /* EVIDENCE-OF: R-41220-51800 This option sets the threading mode to
-      ** Serialized. */
-      tdsqlite3GlobalConfig.bCoreMutex = 1;  /* Enable mutex on core */
-      tdsqlite3GlobalConfig.bFullMutex = 1;  /* Enable mutex on connections */
-      break;
-    }
-#endif
-#if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-63666-48755 */
-    case SQLITE_CONFIG_MUTEX: {
-      /* Specify an alternative mutex implementation */
-      tdsqlite3GlobalConfig.mutex = *va_arg(ap, tdsqlite3_mutex_methods*);
-      break;
-    }
-#endif
-#if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-14450-37597 */
-    case SQLITE_CONFIG_GETMUTEX: {
-      /* Retrieve the current mutex implementation */
-      *va_arg(ap, tdsqlite3_mutex_methods*) = tdsqlite3GlobalConfig.mutex;
-      break;
-    }
-#endif
-
-    case SQLITE_CONFIG_MALLOC: {
-      /* EVIDENCE-OF: R-55594-21030 The SQLITE_CONFIG_MALLOC option takes a
-      ** single argument which is a pointer to an instance of the
-      ** tdsqlite3_mem_methods structure. The argument specifies alternative
-      ** low-level memory allocation routines to be used in place of the memory
-      ** allocation routines built into SQLite. */
-      tdsqlite3GlobalConfig.m = *va_arg(ap, tdsqlite3_mem_methods*);
-      break;
-    }
-    case SQLITE_CONFIG_GETMALLOC: {
-      /* EVIDENCE-OF: R-51213-46414 The SQLITE_CONFIG_GETMALLOC option takes a
-      ** single argument which is a pointer to an instance of the
-      ** tdsqlite3_mem_methods structure. The tdsqlite3_mem_methods structure is
-      ** filled with the currently defined memory allocation routines. */
-      if( tdsqlite3GlobalConfig.m.xMalloc==0 ) tdsqlite3MemSetDefault();
-      *va_arg(ap, tdsqlite3_mem_methods*) = tdsqlite3GlobalConfig.m;
-      break;
-    }
-    case SQLITE_CONFIG_MEMSTATUS: {
-      /* EVIDENCE-OF: R-61275-35157 The SQLITE_CONFIG_MEMSTATUS option takes
-      ** single argument of type int, interpreted as a boolean, which enables
-      ** or disables the collection of memory allocation statistics. */
-      tdsqlite3GlobalConfig.bMemstat = va_arg(ap, int);
-      break;
-    }
-    case SQLITE_CONFIG_SMALL_MALLOC: {
-      tdsqlite3GlobalConfig.bSmallMalloc = va_arg(ap, int);
-      break;
-    }
-    case SQLITE_CONFIG_PAGECACHE: {
-      /* EVIDENCE-OF: R-18761-36601 There are three arguments to
-      ** SQLITE_CONFIG_PAGECACHE: A pointer to 8-byte aligned memory (pMem),
-      ** the size of each page cache line (sz), and the number of cache lines
-      ** (N). */
-      tdsqlite3GlobalConfig.pPage = va_arg(ap, void*);
-      tdsqlite3GlobalConfig.szPage = va_arg(ap, int);
-      tdsqlite3GlobalConfig.nPage = va_arg(ap, int);
-      break;
-    }
-    case SQLITE_CONFIG_PCACHE_HDRSZ: {
-      /* EVIDENCE-OF: R-39100-27317 The SQLITE_CONFIG_PCACHE_HDRSZ option takes
-      ** a single parameter which is a pointer to an integer and writes into
-      ** that integer the number of extra bytes per page required for each page
-      ** in SQLITE_CONFIG_PAGECACHE. */
-      *va_arg(ap, int*) = 
-          tdsqlite3HeaderSizeBtree() +
-          tdsqlite3HeaderSizePcache() +
-          tdsqlite3HeaderSizePcache1();
-      break;
-    }
-
-    case SQLITE_CONFIG_PCACHE: {
-      /* no-op */
-      break;
-    }
-    case SQLITE_CONFIG_GETPCACHE: {
-      /* now an error */
-      rc = SQLITE_ERROR;
-      break;
-    }
-
-    case SQLITE_CONFIG_PCACHE2: {
-      /* EVIDENCE-OF: R-63325-48378 The SQLITE_CONFIG_PCACHE2 option takes a
-      ** single argument which is a pointer to an tdsqlite3_pcache_methods2
-      ** object. This object specifies the interface to a custom page cache
-      ** implementation. */
-      tdsqlite3GlobalConfig.pcache2 = *va_arg(ap, tdsqlite3_pcache_methods2*);
-      break;
-    }
-    case SQLITE_CONFIG_GETPCACHE2: {
-      /* EVIDENCE-OF: R-22035-46182 The SQLITE_CONFIG_GETPCACHE2 option takes a
-      ** single argument which is a pointer to an tdsqlite3_pcache_methods2
-      ** object. SQLite copies of the current page cache implementation into
-      ** that object. */
-      if( tdsqlite3GlobalConfig.pcache2.xInit==0 ){
-        tdsqlite3PCacheSetDefault();
-      }
-      *va_arg(ap, tdsqlite3_pcache_methods2*) = tdsqlite3GlobalConfig.pcache2;
-      break;
-    }
-
-/* EVIDENCE-OF: R-06626-12911 The SQLITE_CONFIG_HEAP option is only
-** available if SQLite is compiled with either SQLITE_ENABLE_MEMSYS3 or
-** SQLITE_ENABLE_MEMSYS5 and returns SQLITE_ERROR if invoked otherwise. */
-#if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
-    case SQLITE_CONFIG_HEAP: {
-      /* EVIDENCE-OF: R-19854-42126 There are three arguments to
-      ** SQLITE_CONFIG_HEAP: An 8-byte aligned pointer to the memory, the
-      ** number of bytes in the memory buffer, and the minimum allocation size.
-      */
-      tdsqlite3GlobalConfig.pHeap = va_arg(ap, void*);
-      tdsqlite3GlobalConfig.nHeap = va_arg(ap, int);
-      tdsqlite3GlobalConfig.mnReq = va_arg(ap, int);
-
-      if( tdsqlite3GlobalConfig.mnReq<1 ){
-        tdsqlite3GlobalConfig.mnReq = 1;
-      }else if( tdsqlite3GlobalConfig.mnReq>(1<<12) ){
-        /* cap min request size at 2^12 */
-        tdsqlite3GlobalConfig.mnReq = (1<<12);
-      }
-
-      if( tdsqlite3GlobalConfig.pHeap==0 ){
-        /* EVIDENCE-OF: R-49920-60189 If the first pointer (the memory pointer)
-        ** is NULL, then SQLite reverts to using its default memory allocator
-        ** (the system malloc() implementation), undoing any prior invocation of
-        ** SQLITE_CONFIG_MALLOC.
-        **
-        ** Setting tdsqlite3GlobalConfig.m to all zeros will cause malloc to
-        ** revert to its default implementation when tdsqlite3_initialize() is run
-        */
-        memset(&tdsqlite3GlobalConfig.m, 0, sizeof(tdsqlite3GlobalConfig.m));
-      }else{
-        /* EVIDENCE-OF: R-61006-08918 If the memory pointer is not NULL then the
-        ** alternative memory allocator is engaged to handle all of SQLites
-        ** memory allocation needs. */
-#ifdef SQLITE_ENABLE_MEMSYS3
-        tdsqlite3GlobalConfig.m = *tdsqlite3MemGetMemsys3();
-#endif
-#ifdef SQLITE_ENABLE_MEMSYS5
-        tdsqlite3GlobalConfig.m = *tdsqlite3MemGetMemsys5();
-#endif
-      }
-      break;
-    }
-#endif
-
-    case SQLITE_CONFIG_LOOKASIDE: {
-      tdsqlite3GlobalConfig.szLookaside = va_arg(ap, int);
-      tdsqlite3GlobalConfig.nLookaside = va_arg(ap, int);
-      break;
-    }
-    
-    /* Record a pointer to the logger function and its first argument.
-    ** The default is NULL.  Logging is disabled if the function pointer is
-    ** NULL.
-    */
-    case SQLITE_CONFIG_LOG: {
-      /* MSVC is picky about pulling func ptrs from va lists.
-      ** http://support.microsoft.com/kb/47961
-      ** tdsqlite3GlobalConfig.xLog = va_arg(ap, void(*)(void*,int,const char*));
-      */
-      typedef void(*LOGFUNC_t)(void*,int,const char*);
-      tdsqlite3GlobalConfig.xLog = va_arg(ap, LOGFUNC_t);
-      tdsqlite3GlobalConfig.pLogArg = va_arg(ap, void*);
-      break;
-    }
-
-    /* EVIDENCE-OF: R-55548-33817 The compile-time setting for URI filenames
-    ** can be changed at start-time using the
-    ** tdsqlite3_config(SQLITE_CONFIG_URI,1) or
-    ** tdsqlite3_config(SQLITE_CONFIG_URI,0) configuration calls.
-    */
-    case SQLITE_CONFIG_URI: {
-      /* EVIDENCE-OF: R-25451-61125 The SQLITE_CONFIG_URI option takes a single
-      ** argument of type int. If non-zero, then URI handling is globally
-      ** enabled. If the parameter is zero, then URI handling is globally
-      ** disabled. */
-      tdsqlite3GlobalConfig.bOpenUri = va_arg(ap, int);
-      break;
-    }
-
-    case SQLITE_CONFIG_COVERING_INDEX_SCAN: {
-      /* EVIDENCE-OF: R-36592-02772 The SQLITE_CONFIG_COVERING_INDEX_SCAN
-      ** option takes a single integer argument which is interpreted as a
-      ** boolean in order to enable or disable the use of covering indices for
-      ** full table scans in the query optimizer. */
-      tdsqlite3GlobalConfig.bUseCis = va_arg(ap, int);
-      break;
-    }
-
-#ifdef SQLITE_ENABLE_SQLLOG
-    case SQLITE_CONFIG_SQLLOG: {
-      typedef void(*SQLLOGFUNC_t)(void*, tdsqlite3*, const char*, int);
-      tdsqlite3GlobalConfig.xSqllog = va_arg(ap, SQLLOGFUNC_t);
-      tdsqlite3GlobalConfig.pSqllogArg = va_arg(ap, void *);
-      break;
-    }
-#endif
-
-    case SQLITE_CONFIG_MMAP_SIZE: {
-      /* EVIDENCE-OF: R-58063-38258 SQLITE_CONFIG_MMAP_SIZE takes two 64-bit
-      ** integer (tdsqlite3_int64) values that are the default mmap size limit
-      ** (the default setting for PRAGMA mmap_size) and the maximum allowed
-      ** mmap size limit. */
-      tdsqlite3_int64 szMmap = va_arg(ap, tdsqlite3_int64);
-      tdsqlite3_int64 mxMmap = va_arg(ap, tdsqlite3_int64);
-      /* EVIDENCE-OF: R-53367-43190 If either argument to this option is
-      ** negative, then that argument is changed to its compile-time default.
-      **
-      ** EVIDENCE-OF: R-34993-45031 The maximum allowed mmap size will be
-      ** silently truncated if necessary so that it does not exceed the
-      ** compile-time maximum mmap size set by the SQLITE_MAX_MMAP_SIZE
-      ** compile-time option.
-      */
-      if( mxMmap<0 || mxMmap>SQLITE_MAX_MMAP_SIZE ){
-        mxMmap = SQLITE_MAX_MMAP_SIZE;
-      }
-      if( szMmap<0 ) szMmap = SQLITE_DEFAULT_MMAP_SIZE;
-      if( szMmap>mxMmap) szMmap = mxMmap;
-      tdsqlite3GlobalConfig.mxMmap = mxMmap;
-      tdsqlite3GlobalConfig.szMmap = szMmap;
-      break;
-    }
-
-#if SQLITE_OS_WIN && defined(SQLITE_WIN32_MALLOC) /* IMP: R-04780-55815 */
-    case SQLITE_CONFIG_WIN32_HEAPSIZE: {
-      /* EVIDENCE-OF: R-34926-03360 SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit
-      ** unsigned integer value that specifies the maximum size of the created
-      ** heap. */
-      tdsqlite3GlobalConfig.nHeap = va_arg(ap, int);
-      break;
-    }
-#endif
-
-    case SQLITE_CONFIG_PMASZ: {
-      tdsqlite3GlobalConfig.szPma = va_arg(ap, unsigned int);
-      break;
-    }
-
-    case SQLITE_CONFIG_STMTJRNL_SPILL: {
-      tdsqlite3GlobalConfig.nStmtSpill = va_arg(ap, int);
-      break;
-    }
-
-#ifdef SQLITE_ENABLE_SORTER_REFERENCES
-    case SQLITE_CONFIG_SORTERREF_SIZE: {
-      int iVal = va_arg(ap, int);
-      if( iVal<0 ){
-        iVal = SQLITE_DEFAULT_SORTERREF_SIZE;
-      }
-      tdsqlite3GlobalConfig.szSorterRef = (u32)iVal;
-      break;
-    }
-#endif /* SQLITE_ENABLE_SORTER_REFERENCES */
-
-#ifdef SQLITE_ENABLE_DESERIALIZE
-    case SQLITE_CONFIG_MEMDB_MAXSIZE: {
-      tdsqlite3GlobalConfig.mxMemdbSize = va_arg(ap, tdsqlite3_int64);
-      break;
-    }
-#endif /* SQLITE_ENABLE_DESERIALIZE */
-
-    default: {
-      rc = SQLITE_ERROR;
-      break;
-    }
-  }
-  va_end(ap);
-  return rc;
-}
-
-/*
-** Set up the lookaside buffers for a database connection.
-** Return SQLITE_OK on success.  
-** If lookaside is already active, return SQLITE_BUSY.
-**
-** The sz parameter is the number of bytes in each lookaside slot.
-** The cnt parameter is the number of slots.  If pStart is NULL the
-** space for the lookaside memory is obtained from tdsqlite3_malloc().
-** If pStart is not NULL then it is sz*cnt bytes of memory to use for
-** the lookaside memory.
-*/
-static int setupLookaside(tdsqlite3 *db, void *pBuf, int sz, int cnt){
-#ifndef SQLITE_OMIT_LOOKASIDE
-  void *pStart;
-  tdsqlite3_int64 szAlloc = sz*(tdsqlite3_int64)cnt;
-  int nBig;   /* Number of full-size slots */
-  int nSm;    /* Number smaller LOOKASIDE_SMALL-byte slots */
-  
-  if( tdsqlite3LookasideUsed(db,0)>0 ){
-    return SQLITE_BUSY;
-  }
-  /* Free any existing lookaside buffer for this handle before
-  ** allocating a new one so we don't have to have space for 
-  ** both at the same time.
-  */
-  if( db->lookaside.bMalloced ){
-    tdsqlite3_free(db->lookaside.pStart);
-  }
-  /* The size of a lookaside slot after ROUNDDOWN8 needs to be larger
-  ** than a pointer to be useful.
-  */
-  sz = ROUNDDOWN8(sz);  /* IMP: R-33038-09382 */
-  if( sz<=(int)sizeof(LookasideSlot*) ) sz = 0;
-  if( cnt<0 ) cnt = 0;
-  if( sz==0 || cnt==0 ){
-    sz = 0;
-    pStart = 0;
-  }else if( pBuf==0 ){
-    tdsqlite3BeginBenignMalloc();
-    pStart = tdsqlite3Malloc( szAlloc );  /* IMP: R-61949-35727 */
-    tdsqlite3EndBenignMalloc();
-    if( pStart ) szAlloc = tdsqlite3MallocSize(pStart);
-  }else{
-    pStart = pBuf;
-  }
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-  if( sz>=LOOKASIDE_SMALL*3 ){
-    nBig = szAlloc/(3*LOOKASIDE_SMALL+sz);
-    nSm = (szAlloc - sz*nBig)/LOOKASIDE_SMALL;
-  }else if( sz>=LOOKASIDE_SMALL*2 ){
-    nBig = szAlloc/(LOOKASIDE_SMALL+sz);
-    nSm = (szAlloc - sz*nBig)/LOOKASIDE_SMALL;
-  }else
-#endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */
-  if( sz>0 ){
-    nBig = szAlloc/sz;
-    nSm = 0;
-  }else{
-    nBig = nSm = 0;
-  }
-  db->lookaside.pStart = pStart;
-  db->lookaside.pInit = 0;
-  db->lookaside.pFree = 0;
-  db->lookaside.sz = (u16)sz;
-  db->lookaside.szTrue = (u16)sz;
-  if( pStart ){
-    int i;
-    LookasideSlot *p;
-    assert( sz > (int)sizeof(LookasideSlot*) );
-    p = (LookasideSlot*)pStart;
-    for(i=0; i<nBig; i++){
-      p->pNext = db->lookaside.pInit;
-      db->lookaside.pInit = p;
-      p = (LookasideSlot*)&((u8*)p)[sz];
-    }
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-    db->lookaside.pSmallInit = 0;
-    db->lookaside.pSmallFree = 0;
-    db->lookaside.pMiddle = p;
-    for(i=0; i<nSm; i++){
-      p->pNext = db->lookaside.pSmallInit;
-      db->lookaside.pSmallInit = p;
-      p = (LookasideSlot*)&((u8*)p)[LOOKASIDE_SMALL];
-    }
-#endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */
-    assert( ((uptr)p)<=szAlloc + (uptr)pStart );
-    db->lookaside.pEnd = p;
-    db->lookaside.bDisable = 0;
-    db->lookaside.bMalloced = pBuf==0 ?1:0;
-    db->lookaside.nSlot = nBig+nSm;
-  }else{
-    db->lookaside.pStart = db;
-#ifndef SQLITE_OMIT_TWOSIZE_LOOKASIDE
-    db->lookaside.pSmallInit = 0;
-    db->lookaside.pSmallFree = 0;
-    db->lookaside.pMiddle = db;
-#endif /* SQLITE_OMIT_TWOSIZE_LOOKASIDE */
-    db->lookaside.pEnd = db;
-    db->lookaside.bDisable = 1;
-    db->lookaside.sz = 0;
-    db->lookaside.bMalloced = 0;
-    db->lookaside.nSlot = 0;
-  }
-  assert( tdsqlite3LookasideUsed(db,0)==0 );
-#endif /* SQLITE_OMIT_LOOKASIDE */
-  return SQLITE_OK;
-}
-
-/*
-** Return the mutex associated with a database connection.
-*/
-SQLITE_API tdsqlite3_mutex *tdsqlite3_db_mutex(tdsqlite3 *db){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  return db->mutex;
-}
-
-/*
-** Free up as much memory as we can from the given database
-** connection.
-*/
-SQLITE_API int tdsqlite3_db_release_memory(tdsqlite3 *db){
-  int i;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  tdsqlite3BtreeEnterAll(db);
-  for(i=0; i<db->nDb; i++){
-    Btree *pBt = db->aDb[i].pBt;
-    if( pBt ){
-      Pager *pPager = tdsqlite3BtreePager(pBt);
-      tdsqlite3PagerShrink(pPager);
-    }
-  }
-  tdsqlite3BtreeLeaveAll(db);
-  tdsqlite3_mutex_leave(db->mutex);
-  return SQLITE_OK;
-}
-
-/*
-** Flush any dirty pages in the pager-cache for any attached database
-** to disk.
-*/
-SQLITE_API int tdsqlite3_db_cacheflush(tdsqlite3 *db){
-  int i;
-  int rc = SQLITE_OK;
-  int bSeenBusy = 0;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  tdsqlite3BtreeEnterAll(db);
-  for(i=0; rc==SQLITE_OK && i<db->nDb; i++){
-    Btree *pBt = db->aDb[i].pBt;
-    if( pBt && tdsqlite3BtreeIsInTrans(pBt) ){
-      Pager *pPager = tdsqlite3BtreePager(pBt);
-      rc = tdsqlite3PagerFlush(pPager);
-      if( rc==SQLITE_BUSY ){
-        bSeenBusy = 1;
-        rc = SQLITE_OK;
-      }
-    }
-  }
-  tdsqlite3BtreeLeaveAll(db);
-  tdsqlite3_mutex_leave(db->mutex);
-  return ((rc==SQLITE_OK && bSeenBusy) ? SQLITE_BUSY : rc);
-}
-
-/*
-** Configuration settings for an individual database connection
-*/
-SQLITE_API int tdsqlite3_db_config(tdsqlite3 *db, int op, ...){
-  va_list ap;
-  int rc;
-  va_start(ap, op);
-  switch( op ){
-    case SQLITE_DBCONFIG_MAINDBNAME: {
-      /* IMP: R-06824-28531 */
-      /* IMP: R-36257-52125 */
-      db->aDb[0].zDbSName = va_arg(ap,char*);
-      rc = SQLITE_OK;
-      break;
-    }
-    case SQLITE_DBCONFIG_LOOKASIDE: {
-      void *pBuf = va_arg(ap, void*); /* IMP: R-26835-10964 */
-      int sz = va_arg(ap, int);       /* IMP: R-47871-25994 */
-      int cnt = va_arg(ap, int);      /* IMP: R-04460-53386 */
-      rc = setupLookaside(db, pBuf, sz, cnt);
-      break;
-    }
-    default: {
-      static const struct {
-        int op;      /* The opcode */
-        u32 mask;    /* Mask of the bit in sqlite3.flags to set/clear */
-      } aFlagOp[] = {
-        { SQLITE_DBCONFIG_ENABLE_FKEY,           SQLITE_ForeignKeys    },
-        { SQLITE_DBCONFIG_ENABLE_TRIGGER,        SQLITE_EnableTrigger  },
-        { SQLITE_DBCONFIG_ENABLE_VIEW,           SQLITE_EnableView     },
-        { SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, SQLITE_Fts3Tokenizer  },
-        { SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, SQLITE_LoadExtension  },
-        { SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE,      SQLITE_NoCkptOnClose  },
-        { SQLITE_DBCONFIG_ENABLE_QPSG,           SQLITE_EnableQPSG     },
-        { SQLITE_DBCONFIG_TRIGGER_EQP,           SQLITE_TriggerEQP     },
-        { SQLITE_DBCONFIG_RESET_DATABASE,        SQLITE_ResetDatabase  },
-        { SQLITE_DBCONFIG_DEFENSIVE,             SQLITE_Defensive      },
-        { SQLITE_DBCONFIG_WRITABLE_SCHEMA,       SQLITE_WriteSchema|
-                                                 SQLITE_NoSchemaError  },
-        { SQLITE_DBCONFIG_LEGACY_ALTER_TABLE,    SQLITE_LegacyAlter    },
-        { SQLITE_DBCONFIG_DQS_DDL,               SQLITE_DqsDDL         },
-        { SQLITE_DBCONFIG_DQS_DML,               SQLITE_DqsDML         },
-        { SQLITE_DBCONFIG_LEGACY_FILE_FORMAT,    SQLITE_LegacyFileFmt  },
-        { SQLITE_DBCONFIG_TRUSTED_SCHEMA,        SQLITE_TrustedSchema  },
-      };
-      unsigned int i;
-      rc = SQLITE_ERROR; /* IMP: R-42790-23372 */
-      for(i=0; i<ArraySize(aFlagOp); i++){
-        if( aFlagOp[i].op==op ){
-          int onoff = va_arg(ap, int);
-          int *pRes = va_arg(ap, int*);
-          u64 oldFlags = db->flags;
-          if( onoff>0 ){
-            db->flags |= aFlagOp[i].mask;
-          }else if( onoff==0 ){
-            db->flags &= ~(u64)aFlagOp[i].mask;
-          }
-          if( oldFlags!=db->flags ){
-            tdsqlite3ExpirePreparedStatements(db, 0);
-          }
-          if( pRes ){
-            *pRes = (db->flags & aFlagOp[i].mask)!=0;
-          }
-          rc = SQLITE_OK;
-          break;
-        }
-      }
-      break;
-    }
-  }
-  va_end(ap);
-  return rc;
-}
-
-/*
-** This is the default collating function named "BINARY" which is always
-** available.
-*/
-static int binCollFunc(
-  void *NotUsed,
-  int nKey1, const void *pKey1,
-  int nKey2, const void *pKey2
-){
-  int rc, n;
-  UNUSED_PARAMETER(NotUsed);
-  n = nKey1<nKey2 ? nKey1 : nKey2;
-  /* EVIDENCE-OF: R-65033-28449 The built-in BINARY collation compares
-  ** strings byte by byte using the memcmp() function from the standard C
-  ** library. */
-  assert( pKey1 && pKey2 );
-  rc = memcmp(pKey1, pKey2, n);
-  if( rc==0 ){
-    rc = nKey1 - nKey2;
-  }
-  return rc;
-}
-
-/*
-** This is the collating function named "RTRIM" which is always
-** available.  Ignore trailing spaces.
-*/
-static int rtrimCollFunc(
-  void *pUser,
-  int nKey1, const void *pKey1,
-  int nKey2, const void *pKey2
-){
-  const u8 *pK1 = (const u8*)pKey1;
-  const u8 *pK2 = (const u8*)pKey2;
-  while( nKey1 && pK1[nKey1-1]==' ' ) nKey1--;
-  while( nKey2 && pK2[nKey2-1]==' ' ) nKey2--;
-  return binCollFunc(pUser, nKey1, pKey1, nKey2, pKey2);
-}
-
-/*
-** Return true if CollSeq is the default built-in BINARY.
-*/
-SQLITE_PRIVATE int tdsqlite3IsBinary(const CollSeq *p){
-  assert( p==0 || p->xCmp!=binCollFunc || strcmp(p->zName,"BINARY")==0 );
-  return p==0 || p->xCmp==binCollFunc;
-}
-
-/*
-** Another built-in collating sequence: NOCASE. 
-**
-** This collating sequence is intended to be used for "case independent
-** comparison". SQLite's knowledge of upper and lower case equivalents
-** extends only to the 26 characters used in the English language.
-**
-** At the moment there is only a UTF-8 implementation.
-*/
-static int nocaseCollatingFunc(
-  void *NotUsed,
-  int nKey1, const void *pKey1,
-  int nKey2, const void *pKey2
-){
-  int r = tdsqlite3StrNICmp(
-      (const char *)pKey1, (const char *)pKey2, (nKey1<nKey2)?nKey1:nKey2);
-  UNUSED_PARAMETER(NotUsed);
-  if( 0==r ){
-    r = nKey1-nKey2;
-  }
-  return r;
-}
-
-/*
-** Return the ROWID of the most recent insert
-*/
-SQLITE_API sqlite_int64 tdsqlite3_last_insert_rowid(tdsqlite3 *db){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  return db->lastRowid;
-}
-
-/*
-** Set the value returned by the tdsqlite3_last_insert_rowid() API function.
-*/
-SQLITE_API void tdsqlite3_set_last_insert_rowid(tdsqlite3 *db, tdsqlite3_int64 iRowid){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  db->lastRowid = iRowid;
-  tdsqlite3_mutex_leave(db->mutex);
-}
-
-/*
-** Return the number of changes in the most recent call to tdsqlite3_exec().
-*/
-SQLITE_API int tdsqlite3_changes(tdsqlite3 *db){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  return db->nChange;
-}
-
-/*
-** Return the number of changes since the database handle was opened.
-*/
-SQLITE_API int tdsqlite3_total_changes(tdsqlite3 *db){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  return db->nTotalChange;
-}
-
-/*
-** Close all open savepoints. This function only manipulates fields of the
-** database handle object, it does not close any savepoints that may be open
-** at the b-tree/pager level.
-*/
-SQLITE_PRIVATE void tdsqlite3CloseSavepoints(tdsqlite3 *db){
-  while( db->pSavepoint ){
-    Savepoint *pTmp = db->pSavepoint;
-    db->pSavepoint = pTmp->pNext;
-    tdsqlite3DbFree(db, pTmp);
-  }
-  db->nSavepoint = 0;
-  db->nStatement = 0;
-  db->isTransactionSavepoint = 0;
-}
-
-/*
-** Invoke the destructor function associated with FuncDef p, if any. Except,
-** if this is not the last copy of the function, do not invoke it. Multiple
-** copies of a single function are created when create_function() is called
-** with SQLITE_ANY as the encoding.
-*/
-static void functionDestroy(tdsqlite3 *db, FuncDef *p){
-  FuncDestructor *pDestructor = p->u.pDestructor;
-  if( pDestructor ){
-    pDestructor->nRef--;
-    if( pDestructor->nRef==0 ){
-      pDestructor->xDestroy(pDestructor->pUserData);
-      tdsqlite3DbFree(db, pDestructor);
-    }
-  }
-}
-
-/*
-** Disconnect all tdsqlite3_vtab objects that belong to database connection
-** db. This is called when db is being closed.
-*/
-static void disconnectAllVtab(tdsqlite3 *db){
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  int i;
-  HashElem *p;
-  tdsqlite3BtreeEnterAll(db);
-  for(i=0; i<db->nDb; i++){
-    Schema *pSchema = db->aDb[i].pSchema;
-    if( pSchema ){
-      for(p=sqliteHashFirst(&pSchema->tblHash); p; p=sqliteHashNext(p)){
-        Table *pTab = (Table *)sqliteHashData(p);
-        if( IsVirtual(pTab) ) tdsqlite3VtabDisconnect(db, pTab);
-      }
-    }
-  }
-  for(p=sqliteHashFirst(&db->aModule); p; p=sqliteHashNext(p)){
-    Module *pMod = (Module *)sqliteHashData(p);
-    if( pMod->pEpoTab ){
-      tdsqlite3VtabDisconnect(db, pMod->pEpoTab);
-    }
-  }
-  tdsqlite3VtabUnlockList(db);
-  tdsqlite3BtreeLeaveAll(db);
-#else
-  UNUSED_PARAMETER(db);
-#endif
-}
-
-/*
-** Return TRUE if database connection db has unfinalized prepared
-** statements or unfinished tdsqlite3_backup objects.  
-*/
-static int connectionIsBusy(tdsqlite3 *db){
-  int j;
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  if( db->pVdbe ) return 1;
-  for(j=0; j<db->nDb; j++){
-    Btree *pBt = db->aDb[j].pBt;
-    if( pBt && tdsqlite3BtreeIsInBackup(pBt) ) return 1;
-  }
-  return 0;
-}
-
-/*
-** Close an existing SQLite database
-*/
-static int tdsqlite3Close(tdsqlite3 *db, int forceZombie){
-  if( !db ){
-    /* EVIDENCE-OF: R-63257-11740 Calling tdsqlite3_close() or
-    ** tdsqlite3_close_v2() with a NULL pointer argument is a harmless no-op. */
-    return SQLITE_OK;
-  }
-  if( !tdsqlite3SafetyCheckSickOrOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-  tdsqlite3_mutex_enter(db->mutex);
-  if( db->mTrace & SQLITE_TRACE_CLOSE ){
-    db->xTrace(SQLITE_TRACE_CLOSE, db->pTraceArg, db, 0);
-  }
-
-  /* Force xDisconnect calls on all virtual tables */
-  disconnectAllVtab(db);
-
-  /* If a transaction is open, the disconnectAllVtab() call above
-  ** will not have called the xDisconnect() method on any virtual
-  ** tables in the db->aVTrans[] array. The following tdsqlite3VtabRollback()
-  ** call will do so. We need to do this before the check for active
-  ** SQL statements below, as the v-table implementation may be storing
-  ** some prepared statements internally.
-  */
-  tdsqlite3VtabRollback(db);
-
-  /* Legacy behavior (tdsqlite3_close() behavior) is to return
-  ** SQLITE_BUSY if the connection can not be closed immediately.
-  */
-  if( !forceZombie && connectionIsBusy(db) ){
-    tdsqlite3ErrorWithMsg(db, SQLITE_BUSY, "unable to close due to unfinalized "
-       "statements or unfinished backups");
-    tdsqlite3_mutex_leave(db->mutex);
-    return SQLITE_BUSY;
-  }
-
-#ifdef SQLITE_ENABLE_SQLLOG
-  if( tdsqlite3GlobalConfig.xSqllog ){
-    /* Closing the handle. Fourth parameter is passed the value 2. */
-    tdsqlite3GlobalConfig.xSqllog(tdsqlite3GlobalConfig.pSqllogArg, db, 0, 2);
-  }
-#endif
-
-  /* Convert the connection into a zombie and then close it.
-  */
-  db->magic = SQLITE_MAGIC_ZOMBIE;
-  tdsqlite3LeaveMutexAndCloseZombie(db);
-  return SQLITE_OK;
-}
-
-/*
-** Two variations on the public interface for closing a database
-** connection. The tdsqlite3_close() version returns SQLITE_BUSY and
-** leaves the connection option if there are unfinalized prepared
-** statements or unfinished tdsqlite3_backups.  The tdsqlite3_close_v2()
-** version forces the connection to become a zombie if there are
-** unclosed resources, and arranges for deallocation when the last
-** prepare statement or tdsqlite3_backup closes.
-*/
-SQLITE_API int tdsqlite3_close(tdsqlite3 *db){ return tdsqlite3Close(db,0); }
-SQLITE_API int tdsqlite3_close_v2(tdsqlite3 *db){ return tdsqlite3Close(db,1); }
-
-
-/*
-** Close the mutex on database connection db.
-**
-** Furthermore, if database connection db is a zombie (meaning that there
-** has been a prior call to tdsqlite3_close(db) or tdsqlite3_close_v2(db)) and
-** every tdsqlite3_stmt has now been finalized and every tdsqlite3_backup has
-** finished, then free all resources.
-*/
-SQLITE_PRIVATE void tdsqlite3LeaveMutexAndCloseZombie(tdsqlite3 *db){
-  HashElem *i;                    /* Hash table iterator */
-  int j;
-
-  /* If there are outstanding tdsqlite3_stmt or tdsqlite3_backup objects
-  ** or if the connection has not yet been closed by tdsqlite3_close_v2(),
-  ** then just leave the mutex and return.
-  */
-  if( db->magic!=SQLITE_MAGIC_ZOMBIE || connectionIsBusy(db) ){
-    tdsqlite3_mutex_leave(db->mutex);
-    return;
-  }
-
-  /* If we reach this point, it means that the database connection has
-  ** closed all tdsqlite3_stmt and tdsqlite3_backup objects and has been
-  ** passed to tdsqlite3_close (meaning that it is a zombie).  Therefore,
-  ** go ahead and free all resources.
-  */
-
-  /* If a transaction is open, roll it back. This also ensures that if
-  ** any database schemas have been modified by an uncommitted transaction
-  ** they are reset. And that the required b-tree mutex is held to make
-  ** the pager rollback and schema reset an atomic operation. */
-  tdsqlite3RollbackAll(db, SQLITE_OK);
-
-  /* Free any outstanding Savepoint structures. */
-  tdsqlite3CloseSavepoints(db);
-
-  /* Close all database connections */
-  for(j=0; j<db->nDb; j++){
-    struct Db *pDb = &db->aDb[j];
-    if( pDb->pBt ){
-      tdsqlite3BtreeClose(pDb->pBt);
-      pDb->pBt = 0;
-      if( j!=1 ){
-        pDb->pSchema = 0;
-      }
-    }
-  }
-  /* Clear the TEMP schema separately and last */
-  if( db->aDb[1].pSchema ){
-    tdsqlite3SchemaClear(db->aDb[1].pSchema);
-  }
-  tdsqlite3VtabUnlockList(db);
-
-  /* Free up the array of auxiliary databases */
-  tdsqlite3CollapseDatabaseArray(db);
-  assert( db->nDb<=2 );
-  assert( db->aDb==db->aDbStatic );
-
-  /* Tell the code in notify.c that the connection no longer holds any
-  ** locks and does not require any further unlock-notify callbacks.
-  */
-  tdsqlite3ConnectionClosed(db);
-
-  for(i=sqliteHashFirst(&db->aFunc); i; i=sqliteHashNext(i)){
-    FuncDef *pNext, *p;
-    p = sqliteHashData(i);
-    do{
-      functionDestroy(db, p);
-      pNext = p->pNext;
-      tdsqlite3DbFree(db, p);
-      p = pNext;
-    }while( p );
-  }
-  tdsqlite3HashClear(&db->aFunc);
-  for(i=sqliteHashFirst(&db->aCollSeq); i; i=sqliteHashNext(i)){
-    CollSeq *pColl = (CollSeq *)sqliteHashData(i);
-    /* Invoke any destructors registered for collation sequence user data. */
-    for(j=0; j<3; j++){
-      if( pColl[j].xDel ){
-        pColl[j].xDel(pColl[j].pUser);
-      }
-    }
-    tdsqlite3DbFree(db, pColl);
-  }
-  tdsqlite3HashClear(&db->aCollSeq);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  for(i=sqliteHashFirst(&db->aModule); i; i=sqliteHashNext(i)){
-    Module *pMod = (Module *)sqliteHashData(i);
-    tdsqlite3VtabEponymousTableClear(db, pMod);
-    tdsqlite3VtabModuleUnref(db, pMod);
-  }
-  tdsqlite3HashClear(&db->aModule);
-#endif
-
-  tdsqlite3Error(db, SQLITE_OK); /* Deallocates any cached error strings. */
-  tdsqlite3ValueFree(db->pErr);
-  tdsqlite3CloseExtensions(db);
-#if SQLITE_USER_AUTHENTICATION
-  tdsqlite3_free(db->auth.zAuthUser);
-  tdsqlite3_free(db->auth.zAuthPW);
-#endif
-
-  db->magic = SQLITE_MAGIC_ERROR;
-
-  /* The temp-database schema is allocated differently from the other schema
-  ** objects (using sqliteMalloc() directly, instead of tdsqlite3BtreeSchema()).
-  ** So it needs to be freed here. Todo: Why not roll the temp schema into
-  ** the same sqliteMalloc() as the one that allocates the database 
-  ** structure?
-  */
-  tdsqlite3DbFree(db, db->aDb[1].pSchema);
-  tdsqlite3_mutex_leave(db->mutex);
-  db->magic = SQLITE_MAGIC_CLOSED;
-  tdsqlite3_mutex_free(db->mutex);
-  assert( tdsqlite3LookasideUsed(db,0)==0 );
-  if( db->lookaside.bMalloced ){
-    tdsqlite3_free(db->lookaside.pStart);
-  }
-  tdsqlite3_free(db);
-}
-
-/*
-** Rollback all database files.  If tripCode is not SQLITE_OK, then
-** any write cursors are invalidated ("tripped" - as in "tripping a circuit
-** breaker") and made to return tripCode if there are any further
-** attempts to use that cursor.  Read cursors remain open and valid
-** but are "saved" in case the table pages are moved around.
-*/
-SQLITE_PRIVATE void tdsqlite3RollbackAll(tdsqlite3 *db, int tripCode){
-  int i;
-  int inTrans = 0;
-  int schemaChange;
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  tdsqlite3BeginBenignMalloc();
-
-  /* Obtain all b-tree mutexes before making any calls to BtreeRollback(). 
-  ** This is important in case the transaction being rolled back has
-  ** modified the database schema. If the b-tree mutexes are not taken
-  ** here, then another shared-cache connection might sneak in between
-  ** the database rollback and schema reset, which can cause false
-  ** corruption reports in some cases.  */
-  tdsqlite3BtreeEnterAll(db);
-  schemaChange = (db->mDbFlags & DBFLAG_SchemaChange)!=0 && db->init.busy==0;
-
-  for(i=0; i<db->nDb; i++){
-    Btree *p = db->aDb[i].pBt;
-    if( p ){
-      if( tdsqlite3BtreeIsInTrans(p) ){
-        inTrans = 1;
-      }
-      tdsqlite3BtreeRollback(p, tripCode, !schemaChange);
-    }
-  }
-  tdsqlite3VtabRollback(db);
-  tdsqlite3EndBenignMalloc();
-
-  if( schemaChange ){
-    tdsqlite3ExpirePreparedStatements(db, 0);
-    tdsqlite3ResetAllSchemasOfConnection(db);
-  }
-  tdsqlite3BtreeLeaveAll(db);
-
-  /* Any deferred constraint violations have now been resolved. */
-  db->nDeferredCons = 0;
-  db->nDeferredImmCons = 0;
-  db->flags &= ~(u64)SQLITE_DeferFKs;
-
-  /* If one has been configured, invoke the rollback-hook callback */
-  if( db->xRollbackCallback && (inTrans || !db->autoCommit) ){
-    db->xRollbackCallback(db->pRollbackArg);
-  }
-}
-
-/*
-** Return a static string containing the name corresponding to the error code
-** specified in the argument.
-*/
-#if defined(SQLITE_NEED_ERR_NAME)
-SQLITE_PRIVATE const char *tdsqlite3ErrName(int rc){
-  const char *zName = 0;
-  int i, origRc = rc;
-  for(i=0; i<2 && zName==0; i++, rc &= 0xff){
-    switch( rc ){
-      case SQLITE_OK:                 zName = "SQLITE_OK";                break;
-      case SQLITE_ERROR:              zName = "SQLITE_ERROR";             break;
-      case SQLITE_ERROR_SNAPSHOT:     zName = "SQLITE_ERROR_SNAPSHOT";    break;
-      case SQLITE_INTERNAL:           zName = "SQLITE_INTERNAL";          break;
-      case SQLITE_PERM:               zName = "SQLITE_PERM";              break;
-      case SQLITE_ABORT:              zName = "SQLITE_ABORT";             break;
-      case SQLITE_ABORT_ROLLBACK:     zName = "SQLITE_ABORT_ROLLBACK";    break;
-      case SQLITE_BUSY:               zName = "SQLITE_BUSY";              break;
-      case SQLITE_BUSY_RECOVERY:      zName = "SQLITE_BUSY_RECOVERY";     break;
-      case SQLITE_BUSY_SNAPSHOT:      zName = "SQLITE_BUSY_SNAPSHOT";     break;
-      case SQLITE_LOCKED:             zName = "SQLITE_LOCKED";            break;
-      case SQLITE_LOCKED_SHAREDCACHE: zName = "SQLITE_LOCKED_SHAREDCACHE";break;
-      case SQLITE_NOMEM:              zName = "SQLITE_NOMEM";             break;
-      case SQLITE_READONLY:           zName = "SQLITE_READONLY";          break;
-      case SQLITE_READONLY_RECOVERY:  zName = "SQLITE_READONLY_RECOVERY"; break;
-      case SQLITE_READONLY_CANTINIT:  zName = "SQLITE_READONLY_CANTINIT"; break;
-      case SQLITE_READONLY_ROLLBACK:  zName = "SQLITE_READONLY_ROLLBACK"; break;
-      case SQLITE_READONLY_DBMOVED:   zName = "SQLITE_READONLY_DBMOVED";  break;
-      case SQLITE_READONLY_DIRECTORY: zName = "SQLITE_READONLY_DIRECTORY";break;
-      case SQLITE_INTERRUPT:          zName = "SQLITE_INTERRUPT";         break;
-      case SQLITE_IOERR:              zName = "SQLITE_IOERR";             break;
-      case SQLITE_IOERR_READ:         zName = "SQLITE_IOERR_READ";        break;
-      case SQLITE_IOERR_SHORT_READ:   zName = "SQLITE_IOERR_SHORT_READ";  break;
-      case SQLITE_IOERR_WRITE:        zName = "SQLITE_IOERR_WRITE";       break;
-      case SQLITE_IOERR_FSYNC:        zName = "SQLITE_IOERR_FSYNC";       break;
-      case SQLITE_IOERR_DIR_FSYNC:    zName = "SQLITE_IOERR_DIR_FSYNC";   break;
-      case SQLITE_IOERR_TRUNCATE:     zName = "SQLITE_IOERR_TRUNCATE";    break;
-      case SQLITE_IOERR_FSTAT:        zName = "SQLITE_IOERR_FSTAT";       break;
-      case SQLITE_IOERR_UNLOCK:       zName = "SQLITE_IOERR_UNLOCK";      break;
-      case SQLITE_IOERR_RDLOCK:       zName = "SQLITE_IOERR_RDLOCK";      break;
-      case SQLITE_IOERR_DELETE:       zName = "SQLITE_IOERR_DELETE";      break;
-      case SQLITE_IOERR_NOMEM:        zName = "SQLITE_IOERR_NOMEM";       break;
-      case SQLITE_IOERR_ACCESS:       zName = "SQLITE_IOERR_ACCESS";      break;
-      case SQLITE_IOERR_CHECKRESERVEDLOCK:
-                                zName = "SQLITE_IOERR_CHECKRESERVEDLOCK"; break;
-      case SQLITE_IOERR_LOCK:         zName = "SQLITE_IOERR_LOCK";        break;
-      case SQLITE_IOERR_CLOSE:        zName = "SQLITE_IOERR_CLOSE";       break;
-      case SQLITE_IOERR_DIR_CLOSE:    zName = "SQLITE_IOERR_DIR_CLOSE";   break;
-      case SQLITE_IOERR_SHMOPEN:      zName = "SQLITE_IOERR_SHMOPEN";     break;
-      case SQLITE_IOERR_SHMSIZE:      zName = "SQLITE_IOERR_SHMSIZE";     break;
-      case SQLITE_IOERR_SHMLOCK:      zName = "SQLITE_IOERR_SHMLOCK";     break;
-      case SQLITE_IOERR_SHMMAP:       zName = "SQLITE_IOERR_SHMMAP";      break;
-      case SQLITE_IOERR_SEEK:         zName = "SQLITE_IOERR_SEEK";        break;
-      case SQLITE_IOERR_DELETE_NOENT: zName = "SQLITE_IOERR_DELETE_NOENT";break;
-      case SQLITE_IOERR_MMAP:         zName = "SQLITE_IOERR_MMAP";        break;
-      case SQLITE_IOERR_GETTEMPPATH:  zName = "SQLITE_IOERR_GETTEMPPATH"; break;
-      case SQLITE_IOERR_CONVPATH:     zName = "SQLITE_IOERR_CONVPATH";    break;
-      case SQLITE_CORRUPT:            zName = "SQLITE_CORRUPT";           break;
-      case SQLITE_CORRUPT_VTAB:       zName = "SQLITE_CORRUPT_VTAB";      break;
-      case SQLITE_NOTFOUND:           zName = "SQLITE_NOTFOUND";          break;
-      case SQLITE_FULL:               zName = "SQLITE_FULL";              break;
-      case SQLITE_CANTOPEN:           zName = "SQLITE_CANTOPEN";          break;
-      case SQLITE_CANTOPEN_NOTEMPDIR: zName = "SQLITE_CANTOPEN_NOTEMPDIR";break;
-      case SQLITE_CANTOPEN_ISDIR:     zName = "SQLITE_CANTOPEN_ISDIR";    break;
-      case SQLITE_CANTOPEN_FULLPATH:  zName = "SQLITE_CANTOPEN_FULLPATH"; break;
-      case SQLITE_CANTOPEN_CONVPATH:  zName = "SQLITE_CANTOPEN_CONVPATH"; break;
-      case SQLITE_CANTOPEN_SYMLINK:   zName = "SQLITE_CANTOPEN_SYMLINK";  break;
-      case SQLITE_PROTOCOL:           zName = "SQLITE_PROTOCOL";          break;
-      case SQLITE_EMPTY:              zName = "SQLITE_EMPTY";             break;
-      case SQLITE_SCHEMA:             zName = "SQLITE_SCHEMA";            break;
-      case SQLITE_TOOBIG:             zName = "SQLITE_TOOBIG";            break;
-      case SQLITE_CONSTRAINT:         zName = "SQLITE_CONSTRAINT";        break;
-      case SQLITE_CONSTRAINT_UNIQUE:  zName = "SQLITE_CONSTRAINT_UNIQUE"; break;
-      case SQLITE_CONSTRAINT_TRIGGER: zName = "SQLITE_CONSTRAINT_TRIGGER";break;
-      case SQLITE_CONSTRAINT_FOREIGNKEY:
-                                zName = "SQLITE_CONSTRAINT_FOREIGNKEY";   break;
-      case SQLITE_CONSTRAINT_CHECK:   zName = "SQLITE_CONSTRAINT_CHECK";  break;
-      case SQLITE_CONSTRAINT_PRIMARYKEY:
-                                zName = "SQLITE_CONSTRAINT_PRIMARYKEY";   break;
-      case SQLITE_CONSTRAINT_NOTNULL: zName = "SQLITE_CONSTRAINT_NOTNULL";break;
-      case SQLITE_CONSTRAINT_COMMITHOOK:
-                                zName = "SQLITE_CONSTRAINT_COMMITHOOK";   break;
-      case SQLITE_CONSTRAINT_VTAB:    zName = "SQLITE_CONSTRAINT_VTAB";   break;
-      case SQLITE_CONSTRAINT_FUNCTION:
-                                zName = "SQLITE_CONSTRAINT_FUNCTION";     break;
-      case SQLITE_CONSTRAINT_ROWID:   zName = "SQLITE_CONSTRAINT_ROWID";  break;
-      case SQLITE_MISMATCH:           zName = "SQLITE_MISMATCH";          break;
-      case SQLITE_MISUSE:             zName = "SQLITE_MISUSE";            break;
-      case SQLITE_NOLFS:              zName = "SQLITE_NOLFS";             break;
-      case SQLITE_AUTH:               zName = "SQLITE_AUTH";              break;
-      case SQLITE_FORMAT:             zName = "SQLITE_FORMAT";            break;
-      case SQLITE_RANGE:              zName = "SQLITE_RANGE";             break;
-      case SQLITE_NOTADB:             zName = "SQLITE_NOTADB";            break;
-      case SQLITE_ROW:                zName = "SQLITE_ROW";               break;
-      case SQLITE_NOTICE:             zName = "SQLITE_NOTICE";            break;
-      case SQLITE_NOTICE_RECOVER_WAL: zName = "SQLITE_NOTICE_RECOVER_WAL";break;
-      case SQLITE_NOTICE_RECOVER_ROLLBACK:
-                                zName = "SQLITE_NOTICE_RECOVER_ROLLBACK"; break;
-      case SQLITE_WARNING:            zName = "SQLITE_WARNING";           break;
-      case SQLITE_WARNING_AUTOINDEX:  zName = "SQLITE_WARNING_AUTOINDEX"; break;
-      case SQLITE_DONE:               zName = "SQLITE_DONE";              break;
-    }
-  }
-  if( zName==0 ){
-    static char zBuf[50];
-    tdsqlite3_snprintf(sizeof(zBuf), zBuf, "SQLITE_UNKNOWN(%d)", origRc);
-    zName = zBuf;
-  }
-  return zName;
-}
-#endif
-
-/*
-** Return a static string that describes the kind of error specified in the
-** argument.
-*/
-SQLITE_PRIVATE const char *tdsqlite3ErrStr(int rc){
-  static const char* const aMsg[] = {
-    /* SQLITE_OK          */ "not an error",
-    /* SQLITE_ERROR       */ "SQL logic error",
-    /* SQLITE_INTERNAL    */ 0,
-    /* SQLITE_PERM        */ "access permission denied",
-    /* SQLITE_ABORT       */ "query aborted",
-    /* SQLITE_BUSY        */ "database is locked",
-    /* SQLITE_LOCKED      */ "database table is locked",
-    /* SQLITE_NOMEM       */ "out of memory",
-    /* SQLITE_READONLY    */ "attempt to write a readonly database",
-    /* SQLITE_INTERRUPT   */ "interrupted",
-    /* SQLITE_IOERR       */ "disk I/O error",
-    /* SQLITE_CORRUPT     */ "database disk image is malformed",
-    /* SQLITE_NOTFOUND    */ "unknown operation",
-    /* SQLITE_FULL        */ "database or disk is full",
-    /* SQLITE_CANTOPEN    */ "unable to open database file",
-    /* SQLITE_PROTOCOL    */ "locking protocol",
-    /* SQLITE_EMPTY       */ 0,
-    /* SQLITE_SCHEMA      */ "database schema has changed",
-    /* SQLITE_TOOBIG      */ "string or blob too big",
-    /* SQLITE_CONSTRAINT  */ "constraint failed",
-    /* SQLITE_MISMATCH    */ "datatype mismatch",
-    /* SQLITE_MISUSE      */ "bad parameter or other API misuse",
-#ifdef SQLITE_DISABLE_LFS
-    /* SQLITE_NOLFS       */ "large file support is disabled",
-#else
-    /* SQLITE_NOLFS       */ 0,
-#endif
-    /* SQLITE_AUTH        */ "authorization denied",
-    /* SQLITE_FORMAT      */ 0,
-    /* SQLITE_RANGE       */ "column index out of range",
-    /* SQLITE_NOTADB      */ "file is not a database",
-    /* SQLITE_NOTICE      */ "notification message",
-    /* SQLITE_WARNING     */ "warning message",
-  };
-  const char *zErr = "unknown error";
-  switch( rc ){
-    case SQLITE_ABORT_ROLLBACK: {
-      zErr = "abort due to ROLLBACK";
-      break;
-    }
-    case SQLITE_ROW: {
-      zErr = "another row available";
-      break;
-    }
-    case SQLITE_DONE: {
-      zErr = "no more rows available";
-      break;
-    }
-    default: {
-      rc &= 0xff;
-      if( ALWAYS(rc>=0) && rc<ArraySize(aMsg) && aMsg[rc]!=0 ){
-        zErr = aMsg[rc];
-      }
-      break;
-    }
-  }
-  return zErr;
-}
-
-/*
-** This routine implements a busy callback that sleeps and tries
-** again until a timeout value is reached.  The timeout value is
-** an integer number of milliseconds passed in as the first
-** argument.
-**
-** Return non-zero to retry the lock.  Return zero to stop trying
-** and cause SQLite to return SQLITE_BUSY.
-*/
-static int sqliteDefaultBusyCallback(
-  void *ptr,               /* Database connection */
-  int count,               /* Number of times table has been busy */
-  tdsqlite3_file *pFile      /* The file on which the lock occurred */
-){
-#if SQLITE_OS_WIN || HAVE_USLEEP
-  /* This case is for systems that have support for sleeping for fractions of
-  ** a second.  Examples:  All windows systems, unix systems with usleep() */
-  static const u8 delays[] =
-     { 1, 2, 5, 10, 15, 20, 25, 25,  25,  50,  50, 100 };
-  static const u8 totals[] =
-     { 0, 1, 3,  8, 18, 33, 53, 78, 103, 128, 178, 228 };
-# define NDELAY ArraySize(delays)
-  tdsqlite3 *db = (tdsqlite3 *)ptr;
-  int tmout = db->busyTimeout;
-  int delay, prior;
-
-#ifdef SQLITE_ENABLE_SETLK_TIMEOUT
-  if( tdsqlite3OsFileControl(pFile,SQLITE_FCNTL_LOCK_TIMEOUT,&tmout)==SQLITE_OK ){
-    if( count ){
-      tmout = 0;
-      tdsqlite3OsFileControl(pFile, SQLITE_FCNTL_LOCK_TIMEOUT, &tmout);
-      return 0;
-    }else{
-      return 1;
-    }
-  }
-#else
-  UNUSED_PARAMETER(pFile);
-#endif
-  assert( count>=0 );
-  if( count < NDELAY ){
-    delay = delays[count];
-    prior = totals[count];
-  }else{
-    delay = delays[NDELAY-1];
-    prior = totals[NDELAY-1] + delay*(count-(NDELAY-1));
-  }
-  if( prior + delay > tmout ){
-    delay = tmout - prior;
-    if( delay<=0 ) return 0;
-  }
-  tdsqlite3OsSleep(db->pVfs, delay*1000);
-  return 1;
-#else
-  /* This case for unix systems that lack usleep() support.  Sleeping
-  ** must be done in increments of whole seconds */
-  tdsqlite3 *db = (tdsqlite3 *)ptr;
-  int tmout = ((tdsqlite3 *)ptr)->busyTimeout;
-  UNUSED_PARAMETER(pFile);
-  if( (count+1)*1000 > tmout ){
-    return 0;
-  }
-  tdsqlite3OsSleep(db->pVfs, 1000000);
-  return 1;
-#endif
-}
-
-/*
-** Invoke the given busy handler.
-**
-** This routine is called when an operation failed to acquire a
-** lock on VFS file pFile.
-**
-** If this routine returns non-zero, the lock is retried.  If it
-** returns 0, the operation aborts with an SQLITE_BUSY error.
-*/
-SQLITE_PRIVATE int tdsqlite3InvokeBusyHandler(BusyHandler *p, tdsqlite3_file *pFile){
-  int rc;
-  if( p->xBusyHandler==0 || p->nBusy<0 ) return 0;
-  if( p->bExtraFileArg ){
-    /* Add an extra parameter with the pFile pointer to the end of the
-    ** callback argument list */
-    int (*xTra)(void*,int,tdsqlite3_file*);
-    xTra = (int(*)(void*,int,tdsqlite3_file*))p->xBusyHandler;
-    rc = xTra(p->pBusyArg, p->nBusy, pFile);
-  }else{
-    /* Legacy style busy handler callback */
-    rc = p->xBusyHandler(p->pBusyArg, p->nBusy);
-  }
-  if( rc==0 ){
-    p->nBusy = -1;
-  }else{
-    p->nBusy++;
-  }
-  return rc; 
-}
-
-/*
-** This routine sets the busy callback for an Sqlite database to the
-** given callback function with the given argument.
-*/
-SQLITE_API int tdsqlite3_busy_handler(
-  tdsqlite3 *db,
-  int (*xBusy)(void*,int),
-  void *pArg
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  db->busyHandler.xBusyHandler = xBusy;
-  db->busyHandler.pBusyArg = pArg;
-  db->busyHandler.nBusy = 0;
-  db->busyHandler.bExtraFileArg = 0;
-  db->busyTimeout = 0;
-  tdsqlite3_mutex_leave(db->mutex);
-  return SQLITE_OK;
-}
-
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
-/*
-** This routine sets the progress callback for an Sqlite database to the
-** given callback function with the given argument. The progress callback will
-** be invoked every nOps opcodes.
-*/
-SQLITE_API void tdsqlite3_progress_handler(
-  tdsqlite3 *db, 
-  int nOps,
-  int (*xProgress)(void*), 
-  void *pArg
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  if( nOps>0 ){
-    db->xProgress = xProgress;
-    db->nProgressOps = (unsigned)nOps;
-    db->pProgressArg = pArg;
-  }else{
-    db->xProgress = 0;
-    db->nProgressOps = 0;
-    db->pProgressArg = 0;
-  }
-  tdsqlite3_mutex_leave(db->mutex);
-}
-#endif
-
-
-/*
-** This routine installs a default busy handler that waits for the
-** specified number of milliseconds before returning 0.
-*/
-SQLITE_API int tdsqlite3_busy_timeout(tdsqlite3 *db, int ms){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  if( ms>0 ){
-    tdsqlite3_busy_handler(db, (int(*)(void*,int))sqliteDefaultBusyCallback,
-                             (void*)db);
-    db->busyTimeout = ms;
-    db->busyHandler.bExtraFileArg = 1;
-  }else{
-    tdsqlite3_busy_handler(db, 0, 0);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Cause any pending operation to stop at its earliest opportunity.
-*/
-SQLITE_API void tdsqlite3_interrupt(tdsqlite3 *db){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) && (db==0 || db->magic!=SQLITE_MAGIC_ZOMBIE) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return;
-  }
-#endif
-  db->u1.isInterrupted = 1;
-}
-
-
-/*
-** This function is exactly the same as tdsqlite3_create_function(), except
-** that it is designed to be called by internal code. The difference is
-** that if a malloc() fails in tdsqlite3_create_function(), an error code
-** is returned and the mallocFailed flag cleared. 
-*/
-SQLITE_PRIVATE int tdsqlite3CreateFunc(
-  tdsqlite3 *db,
-  const char *zFunctionName,
-  int nArg,
-  int enc,
-  void *pUserData,
-  void (*xSFunc)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*xFinal)(tdsqlite3_context*),
-  void (*xValue)(tdsqlite3_context*),
-  void (*xInverse)(tdsqlite3_context*,int,tdsqlite3_value **),
-  FuncDestructor *pDestructor
-){
-  FuncDef *p;
-  int nName;
-  int extraFlags;
-
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  assert( xValue==0 || xSFunc==0 );
-  if( zFunctionName==0                /* Must have a valid name */
-   || (xSFunc!=0 && xFinal!=0)        /* Not both xSFunc and xFinal */
-   || ((xFinal==0)!=(xStep==0))       /* Both or neither of xFinal and xStep */
-   || ((xValue==0)!=(xInverse==0))    /* Both or neither of xValue, xInverse */
-   || (nArg<-1 || nArg>SQLITE_MAX_FUNCTION_ARG)
-   || (255<(nName = tdsqlite3Strlen30( zFunctionName)))
-  ){
-    return SQLITE_MISUSE_BKPT;
-  }
-
-  assert( SQLITE_FUNC_CONSTANT==SQLITE_DETERMINISTIC );
-  assert( SQLITE_FUNC_DIRECT==SQLITE_DIRECTONLY );
-  extraFlags = enc &  (SQLITE_DETERMINISTIC|SQLITE_DIRECTONLY|
-                       SQLITE_SUBTYPE|SQLITE_INNOCUOUS);
-  enc &= (SQLITE_FUNC_ENCMASK|SQLITE_ANY);
-
-  /* The SQLITE_INNOCUOUS flag is the same bit as SQLITE_FUNC_UNSAFE.  But
-  ** the meaning is inverted.  So flip the bit. */
-  assert( SQLITE_FUNC_UNSAFE==SQLITE_INNOCUOUS );
-  extraFlags ^= SQLITE_FUNC_UNSAFE;
-
-  
-#ifndef SQLITE_OMIT_UTF16
-  /* If SQLITE_UTF16 is specified as the encoding type, transform this
-  ** to one of SQLITE_UTF16LE or SQLITE_UTF16BE using the
-  ** SQLITE_UTF16NATIVE macro. SQLITE_UTF16 is not used internally.
-  **
-  ** If SQLITE_ANY is specified, add three versions of the function
-  ** to the hash table.
-  */
-  if( enc==SQLITE_UTF16 ){
-    enc = SQLITE_UTF16NATIVE;
-  }else if( enc==SQLITE_ANY ){
-    int rc;
-    rc = tdsqlite3CreateFunc(db, zFunctionName, nArg,
-         (SQLITE_UTF8|extraFlags)^SQLITE_FUNC_UNSAFE,
-         pUserData, xSFunc, xStep, xFinal, xValue, xInverse, pDestructor);
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3CreateFunc(db, zFunctionName, nArg,
-           (SQLITE_UTF16LE|extraFlags)^SQLITE_FUNC_UNSAFE,
-           pUserData, xSFunc, xStep, xFinal, xValue, xInverse, pDestructor);
-    }
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-    enc = SQLITE_UTF16BE;
-  }
-#else
-  enc = SQLITE_UTF8;
-#endif
-  
-  /* Check if an existing function is being overridden or deleted. If so,
-  ** and there are active VMs, then return SQLITE_BUSY. If a function
-  ** is being overridden/deleted but there are no active VMs, allow the
-  ** operation to continue but invalidate all precompiled statements.
-  */
-  p = tdsqlite3FindFunction(db, zFunctionName, nArg, (u8)enc, 0);
-  if( p && (p->funcFlags & SQLITE_FUNC_ENCMASK)==(u32)enc && p->nArg==nArg ){
-    if( db->nVdbeActive ){
-      tdsqlite3ErrorWithMsg(db, SQLITE_BUSY, 
-        "unable to delete/modify user-function due to active statements");
-      assert( !db->mallocFailed );
-      return SQLITE_BUSY;
-    }else{
-      tdsqlite3ExpirePreparedStatements(db, 0);
-    }
-  }
-
-  p = tdsqlite3FindFunction(db, zFunctionName, nArg, (u8)enc, 1);
-  assert(p || db->mallocFailed);
-  if( !p ){
-    return SQLITE_NOMEM_BKPT;
-  }
-
-  /* If an older version of the function with a configured destructor is
-  ** being replaced invoke the destructor function here. */
-  functionDestroy(db, p);
-
-  if( pDestructor ){
-    pDestructor->nRef++;
-  }
-  p->u.pDestructor = pDestructor;
-  p->funcFlags = (p->funcFlags & SQLITE_FUNC_ENCMASK) | extraFlags;
-  testcase( p->funcFlags & SQLITE_DETERMINISTIC );
-  testcase( p->funcFlags & SQLITE_DIRECTONLY );
-  p->xSFunc = xSFunc ? xSFunc : xStep;
-  p->xFinalize = xFinal;
-  p->xValue = xValue;
-  p->xInverse = xInverse;
-  p->pUserData = pUserData;
-  p->nArg = (u16)nArg;
-  return SQLITE_OK;
-}
-
-/*
-** Worker function used by utf-8 APIs that create new functions:
-**
-**    tdsqlite3_create_function()
-**    tdsqlite3_create_function_v2()
-**    tdsqlite3_create_window_function()
-*/
-static int createFunctionApi(
-  tdsqlite3 *db,
-  const char *zFunc,
-  int nArg,
-  int enc,
-  void *p,
-  void (*xSFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*),
-  void (*xValue)(tdsqlite3_context*),
-  void (*xInverse)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void(*xDestroy)(void*)
-){
-  int rc = SQLITE_ERROR;
-  FuncDestructor *pArg = 0;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  if( xDestroy ){
-    pArg = (FuncDestructor *)tdsqlite3Malloc(sizeof(FuncDestructor));
-    if( !pArg ){
-      tdsqlite3OomFault(db);
-      xDestroy(p);
-      goto out;
-    }
-    pArg->nRef = 0;
-    pArg->xDestroy = xDestroy;
-    pArg->pUserData = p;
-  }
-  rc = tdsqlite3CreateFunc(db, zFunc, nArg, enc, p, 
-      xSFunc, xStep, xFinal, xValue, xInverse, pArg
-  );
-  if( pArg && pArg->nRef==0 ){
-    assert( rc!=SQLITE_OK );
-    xDestroy(p);
-    tdsqlite3_free(pArg);
-  }
-
- out:
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** Create new user functions.
-*/
-SQLITE_API int tdsqlite3_create_function(
-  tdsqlite3 *db,
-  const char *zFunc,
-  int nArg,
-  int enc,
-  void *p,
-  void (*xSFunc)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*xFinal)(tdsqlite3_context*)
-){
-  return createFunctionApi(db, zFunc, nArg, enc, p, xSFunc, xStep,
-                                    xFinal, 0, 0, 0);
-}
-SQLITE_API int tdsqlite3_create_function_v2(
-  tdsqlite3 *db,
-  const char *zFunc,
-  int nArg,
-  int enc,
-  void *p,
-  void (*xSFunc)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*xFinal)(tdsqlite3_context*),
-  void (*xDestroy)(void *)
-){
-  return createFunctionApi(db, zFunc, nArg, enc, p, xSFunc, xStep,
-                                    xFinal, 0, 0, xDestroy);
-}
-SQLITE_API int tdsqlite3_create_window_function(
-  tdsqlite3 *db,
-  const char *zFunc,
-  int nArg,
-  int enc,
-  void *p,
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*xFinal)(tdsqlite3_context*),
-  void (*xValue)(tdsqlite3_context*),
-  void (*xInverse)(tdsqlite3_context*,int,tdsqlite3_value **),
-  void (*xDestroy)(void *)
-){
-  return createFunctionApi(db, zFunc, nArg, enc, p, 0, xStep,
-                                    xFinal, xValue, xInverse, xDestroy);
-}
-
-#ifndef SQLITE_OMIT_UTF16
-SQLITE_API int tdsqlite3_create_function16(
-  tdsqlite3 *db,
-  const void *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *p,
-  void (*xSFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*)
-){
-  int rc;
-  char *zFunc8;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zFunctionName==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  assert( !db->mallocFailed );
-  zFunc8 = tdsqlite3Utf16to8(db, zFunctionName, -1, SQLITE_UTF16NATIVE);
-  rc = tdsqlite3CreateFunc(db, zFunc8, nArg, eTextRep, p, xSFunc,xStep,xFinal,0,0,0);
-  tdsqlite3DbFree(db, zFunc8);
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-#endif
-
-
-/*
-** The following is the implementation of an SQL function that always
-** fails with an error message stating that the function is used in the
-** wrong context.  The tdsqlite3_overload_function() API might construct
-** SQL function that use this routine so that the functions will exist
-** for name resolution but are actually overloaded by the xFindFunction
-** method of virtual tables.
-*/
-static void tdsqlite3InvalidFunction(
-  tdsqlite3_context *context,  /* The function calling context */
-  int NotUsed,               /* Number of arguments to the function */
-  tdsqlite3_value **NotUsed2   /* Value of each argument */
-){
-  const char *zName = (const char*)tdsqlite3_user_data(context);
-  char *zErr;
-  UNUSED_PARAMETER2(NotUsed, NotUsed2);
-  zErr = tdsqlite3_mprintf(
-      "unable to use function %s in the requested context", zName);
-  tdsqlite3_result_error(context, zErr, -1);
-  tdsqlite3_free(zErr);
-}
-
-/*
-** Declare that a function has been overloaded by a virtual table.
-**
-** If the function already exists as a regular global function, then
-** this routine is a no-op.  If the function does not exist, then create
-** a new one that always throws a run-time error.  
-**
-** When virtual tables intend to provide an overloaded function, they
-** should call this routine to make sure the global function exists.
-** A global function must exist in order for name resolution to work
-** properly.
-*/
-SQLITE_API int tdsqlite3_overload_function(
-  tdsqlite3 *db,
-  const char *zName,
-  int nArg
-){
-  int rc;
-  char *zCopy;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zName==0 || nArg<-2 ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  rc = tdsqlite3FindFunction(db, zName, nArg, SQLITE_UTF8, 0)!=0;
-  tdsqlite3_mutex_leave(db->mutex);
-  if( rc ) return SQLITE_OK;
-  zCopy = tdsqlite3_mprintf(zName);
-  if( zCopy==0 ) return SQLITE_NOMEM;
-  return tdsqlite3_create_function_v2(db, zName, nArg, SQLITE_UTF8,
-                           zCopy, tdsqlite3InvalidFunction, 0, 0, tdsqlite3_free);
-}
-
-#ifndef SQLITE_OMIT_TRACE
-/*
-** Register a trace function.  The pArg from the previously registered trace
-** is returned.  
-**
-** A NULL trace function means that no tracing is executes.  A non-NULL
-** trace is a pointer to a function that is invoked at the start of each
-** SQL statement.
-*/
-#ifndef SQLITE_OMIT_DEPRECATED
-SQLITE_API void *tdsqlite3_trace(tdsqlite3 *db, void(*xTrace)(void*,const char*), void *pArg){
-  void *pOld;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  pOld = db->pTraceArg;
-  db->mTrace = xTrace ? SQLITE_TRACE_LEGACY : 0;
-  db->xTrace = (int(*)(u32,void*,void*,void*))xTrace;
-  db->pTraceArg = pArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return pOld;
-}
-#endif /* SQLITE_OMIT_DEPRECATED */
-
-/* Register a trace callback using the version-2 interface.
-*/
-SQLITE_API int tdsqlite3_trace_v2(
-  tdsqlite3 *db,                               /* Trace this connection */
-  unsigned mTrace,                           /* Mask of events to be traced */
-  int(*xTrace)(unsigned,void*,void*,void*),  /* Callback to invoke */
-  void *pArg                                 /* Context */
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  if( mTrace==0 ) xTrace = 0;
-  if( xTrace==0 ) mTrace = 0;
-  db->mTrace = mTrace;
-  db->xTrace = xTrace;
-  db->pTraceArg = pArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return SQLITE_OK;
-}
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/*
-** Register a profile function.  The pArg from the previously registered 
-** profile function is returned.  
-**
-** A NULL profile function means that no profiling is executes.  A non-NULL
-** profile is a pointer to a function that is invoked at the conclusion of
-** each SQL statement that is run.
-*/
-SQLITE_API void *tdsqlite3_profile(
-  tdsqlite3 *db,
-  void (*xProfile)(void*,const char*,sqlite_uint64),
-  void *pArg
-){
-  void *pOld;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  pOld = db->pProfileArg;
-  db->xProfile = xProfile;
-  db->pProfileArg = pArg;
-  db->mTrace &= SQLITE_TRACE_NONLEGACY_MASK;
-  if( db->xProfile ) db->mTrace |= SQLITE_TRACE_XPROFILE;
-  tdsqlite3_mutex_leave(db->mutex);
-  return pOld;
-}
-#endif /* SQLITE_OMIT_DEPRECATED */
-#endif /* SQLITE_OMIT_TRACE */
-
-/*
-** Register a function to be invoked when a transaction commits.
-** If the invoked function returns non-zero, then the commit becomes a
-** rollback.
-*/
-SQLITE_API void *tdsqlite3_commit_hook(
-  tdsqlite3 *db,              /* Attach the hook to this database */
-  int (*xCallback)(void*),  /* Function to invoke on each commit */
-  void *pArg                /* Argument to the function */
-){
-  void *pOld;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  pOld = db->pCommitArg;
-  db->xCommitCallback = xCallback;
-  db->pCommitArg = pArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return pOld;
-}
-
-/*
-** Register a callback to be invoked each time a row is updated,
-** inserted or deleted using this database connection.
-*/
-SQLITE_API void *tdsqlite3_update_hook(
-  tdsqlite3 *db,              /* Attach the hook to this database */
-  void (*xCallback)(void*,int,char const *,char const *,sqlite_int64),
-  void *pArg                /* Argument to the function */
-){
-  void *pRet;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  pRet = db->pUpdateArg;
-  db->xUpdateCallback = xCallback;
-  db->pUpdateArg = pArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return pRet;
-}
-
-/*
-** Register a callback to be invoked each time a transaction is rolled
-** back by this database connection.
-*/
-SQLITE_API void *tdsqlite3_rollback_hook(
-  tdsqlite3 *db,              /* Attach the hook to this database */
-  void (*xCallback)(void*), /* Callback function */
-  void *pArg                /* Argument to the function */
-){
-  void *pRet;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  pRet = db->pRollbackArg;
-  db->xRollbackCallback = xCallback;
-  db->pRollbackArg = pArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return pRet;
-}
-
-#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
-/*
-** Register a callback to be invoked each time a row is updated,
-** inserted or deleted using this database connection.
-*/
-SQLITE_API void *tdsqlite3_preupdate_hook(
-  tdsqlite3 *db,              /* Attach the hook to this database */
-  void(*xCallback)(         /* Callback function */
-    void*,tdsqlite3*,int,char const*,char const*,tdsqlite3_int64,tdsqlite3_int64),
-  void *pArg                /* First callback argument */
-){
-  void *pRet;
-  tdsqlite3_mutex_enter(db->mutex);
-  pRet = db->pPreUpdateArg;
-  db->xPreUpdateCallback = xCallback;
-  db->pPreUpdateArg = pArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return pRet;
-}
-#endif /* SQLITE_ENABLE_PREUPDATE_HOOK */
-
-#ifndef SQLITE_OMIT_WAL
-/*
-** The tdsqlite3_wal_hook() callback registered by tdsqlite3_wal_autocheckpoint().
-** Invoke tdsqlite3_wal_checkpoint if the number of frames in the log file
-** is greater than sqlite3.pWalArg cast to an integer (the value configured by
-** wal_autocheckpoint()).
-*/ 
-SQLITE_PRIVATE int tdsqlite3WalDefaultHook(
-  void *pClientData,     /* Argument */
-  tdsqlite3 *db,           /* Connection */
-  const char *zDb,       /* Database */
-  int nFrame             /* Size of WAL */
-){
-  if( nFrame>=SQLITE_PTR_TO_INT(pClientData) ){
-    tdsqlite3BeginBenignMalloc();
-    tdsqlite3_wal_checkpoint(db, zDb);
-    tdsqlite3EndBenignMalloc();
-  }
-  return SQLITE_OK;
-}
-#endif /* SQLITE_OMIT_WAL */
-
-/*
-** Configure an tdsqlite3_wal_hook() callback to automatically checkpoint
-** a database after committing a transaction if there are nFrame or
-** more frames in the log file. Passing zero or a negative value as the
-** nFrame parameter disables automatic checkpoints entirely.
-**
-** The callback registered by this function replaces any existing callback
-** registered using tdsqlite3_wal_hook(). Likewise, registering a callback
-** using tdsqlite3_wal_hook() disables the automatic checkpoint mechanism
-** configured by this function.
-*/
-SQLITE_API int tdsqlite3_wal_autocheckpoint(tdsqlite3 *db, int nFrame){
-#ifdef SQLITE_OMIT_WAL
-  UNUSED_PARAMETER(db);
-  UNUSED_PARAMETER(nFrame);
-#else
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  if( nFrame>0 ){
-    tdsqlite3_wal_hook(db, tdsqlite3WalDefaultHook, SQLITE_INT_TO_PTR(nFrame));
-  }else{
-    tdsqlite3_wal_hook(db, 0, 0);
-  }
-#endif
-  return SQLITE_OK;
-}
-
-/*
-** Register a callback to be invoked each time a transaction is written
-** into the write-ahead-log by this database connection.
-*/
-SQLITE_API void *tdsqlite3_wal_hook(
-  tdsqlite3 *db,                    /* Attach the hook to this db handle */
-  int(*xCallback)(void *, tdsqlite3*, const char*, int),
-  void *pArg                      /* First argument passed to xCallback() */
-){
-#ifndef SQLITE_OMIT_WAL
-  void *pRet;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  pRet = db->pWalArg;
-  db->xWalCallback = xCallback;
-  db->pWalArg = pArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return pRet;
-#else
-  return 0;
-#endif
-}
-
-/*
-** Checkpoint database zDb.
-*/
-SQLITE_API int tdsqlite3_wal_checkpoint_v2(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Name of attached database (or NULL) */
-  int eMode,                      /* SQLITE_CHECKPOINT_* value */
-  int *pnLog,                     /* OUT: Size of WAL log in frames */
-  int *pnCkpt                     /* OUT: Total number of frames checkpointed */
-){
-#ifdef SQLITE_OMIT_WAL
-  return SQLITE_OK;
-#else
-  int rc;                         /* Return code */
-  int iDb = SQLITE_MAX_ATTACHED;  /* sqlite3.aDb[] index of db to checkpoint */
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-
-  /* Initialize the output variables to -1 in case an error occurs. */
-  if( pnLog ) *pnLog = -1;
-  if( pnCkpt ) *pnCkpt = -1;
-
-  assert( SQLITE_CHECKPOINT_PASSIVE==0 );
-  assert( SQLITE_CHECKPOINT_FULL==1 );
-  assert( SQLITE_CHECKPOINT_RESTART==2 );
-  assert( SQLITE_CHECKPOINT_TRUNCATE==3 );
-  if( eMode<SQLITE_CHECKPOINT_PASSIVE || eMode>SQLITE_CHECKPOINT_TRUNCATE ){
-    /* EVIDENCE-OF: R-03996-12088 The M parameter must be a valid checkpoint
-    ** mode: */
-    return SQLITE_MISUSE;
-  }
-
-  tdsqlite3_mutex_enter(db->mutex);
-  if( zDb && zDb[0] ){
-    iDb = tdsqlite3FindDbName(db, zDb);
-  }
-  if( iDb<0 ){
-    rc = SQLITE_ERROR;
-    tdsqlite3ErrorWithMsg(db, SQLITE_ERROR, "unknown database: %s", zDb);
-  }else{
-    db->busyHandler.nBusy = 0;
-    rc = tdsqlite3Checkpoint(db, iDb, eMode, pnLog, pnCkpt);
-    tdsqlite3Error(db, rc);
-  }
-  rc = tdsqlite3ApiExit(db, rc);
-
-  /* If there are no active statements, clear the interrupt flag at this
-  ** point.  */
-  if( db->nVdbeActive==0 ){
-    db->u1.isInterrupted = 0;
-  }
-
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-#endif
-}
-
-
-/*
-** Checkpoint database zDb. If zDb is NULL, or if the buffer zDb points
-** to contains a zero-length string, all attached databases are 
-** checkpointed.
-*/
-SQLITE_API int tdsqlite3_wal_checkpoint(tdsqlite3 *db, const char *zDb){
-  /* EVIDENCE-OF: R-41613-20553 The tdsqlite3_wal_checkpoint(D,X) is equivalent to
-  ** tdsqlite3_wal_checkpoint_v2(D,X,SQLITE_CHECKPOINT_PASSIVE,0,0). */
-  return tdsqlite3_wal_checkpoint_v2(db,zDb,SQLITE_CHECKPOINT_PASSIVE,0,0);
-}
-
-#ifndef SQLITE_OMIT_WAL
-/*
-** Run a checkpoint on database iDb. This is a no-op if database iDb is
-** not currently open in WAL mode.
-**
-** If a transaction is open on the database being checkpointed, this 
-** function returns SQLITE_LOCKED and a checkpoint is not attempted. If 
-** an error occurs while running the checkpoint, an SQLite error code is 
-** returned (i.e. SQLITE_IOERR). Otherwise, SQLITE_OK.
-**
-** The mutex on database handle db should be held by the caller. The mutex
-** associated with the specific b-tree being checkpointed is taken by
-** this function while the checkpoint is running.
-**
-** If iDb is passed SQLITE_MAX_ATTACHED, then all attached databases are
-** checkpointed. If an error is encountered it is returned immediately -
-** no attempt is made to checkpoint any remaining databases.
-**
-** Parameter eMode is one of SQLITE_CHECKPOINT_PASSIVE, FULL, RESTART
-** or TRUNCATE.
-*/
-SQLITE_PRIVATE int tdsqlite3Checkpoint(tdsqlite3 *db, int iDb, int eMode, int *pnLog, int *pnCkpt){
-  int rc = SQLITE_OK;             /* Return code */
-  int i;                          /* Used to iterate through attached dbs */
-  int bBusy = 0;                  /* True if SQLITE_BUSY has been encountered */
-
-  assert( tdsqlite3_mutex_held(db->mutex) );
-  assert( !pnLog || *pnLog==-1 );
-  assert( !pnCkpt || *pnCkpt==-1 );
-
-  for(i=0; i<db->nDb && rc==SQLITE_OK; i++){
-    if( i==iDb || iDb==SQLITE_MAX_ATTACHED ){
-      rc = tdsqlite3BtreeCheckpoint(db->aDb[i].pBt, eMode, pnLog, pnCkpt);
-      pnLog = 0;
-      pnCkpt = 0;
-      if( rc==SQLITE_BUSY ){
-        bBusy = 1;
-        rc = SQLITE_OK;
-      }
-    }
-  }
-
-  return (rc==SQLITE_OK && bBusy) ? SQLITE_BUSY : rc;
-}
-#endif /* SQLITE_OMIT_WAL */
-
-/*
-** This function returns true if main-memory should be used instead of
-** a temporary file for transient pager files and statement journals.
-** The value returned depends on the value of db->temp_store (runtime
-** parameter) and the compile time value of SQLITE_TEMP_STORE. The
-** following table describes the relationship between these two values
-** and this functions return value.
-**
-**   SQLITE_TEMP_STORE     db->temp_store     Location of temporary database
-**   -----------------     --------------     ------------------------------
-**   0                     any                file      (return 0)
-**   1                     1                  file      (return 0)
-**   1                     2                  memory    (return 1)
-**   1                     0                  file      (return 0)
-**   2                     1                  file      (return 0)
-**   2                     2                  memory    (return 1)
-**   2                     0                  memory    (return 1)
-**   3                     any                memory    (return 1)
-*/
-SQLITE_PRIVATE int tdsqlite3TempInMemory(const tdsqlite3 *db){
-#if SQLITE_TEMP_STORE==1
-  return ( db->temp_store==2 );
-#endif
-#if SQLITE_TEMP_STORE==2
-  return ( db->temp_store!=1 );
-#endif
-#if SQLITE_TEMP_STORE==3
-  UNUSED_PARAMETER(db);
-  return 1;
-#endif
-#if SQLITE_TEMP_STORE<1 || SQLITE_TEMP_STORE>3
-  UNUSED_PARAMETER(db);
-  return 0;
-#endif
-}
-
-/*
-** Return UTF-8 encoded English language explanation of the most recent
-** error.
-*/
-SQLITE_API const char *tdsqlite3_errmsg(tdsqlite3 *db){
-  const char *z;
-  if( !db ){
-    return tdsqlite3ErrStr(SQLITE_NOMEM_BKPT);
-  }
-  if( !tdsqlite3SafetyCheckSickOrOk(db) ){
-    return tdsqlite3ErrStr(SQLITE_MISUSE_BKPT);
-  }
-  tdsqlite3_mutex_enter(db->mutex);
-  if( db->mallocFailed ){
-    z = tdsqlite3ErrStr(SQLITE_NOMEM_BKPT);
-  }else{
-    testcase( db->pErr==0 );
-    z = db->errCode ? (char*)tdsqlite3_value_text(db->pErr) : 0;
-    assert( !db->mallocFailed );
-    if( z==0 ){
-      z = tdsqlite3ErrStr(db->errCode);
-    }
-  }
-  tdsqlite3_mutex_leave(db->mutex);
-  return z;
-}
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** Return UTF-16 encoded English language explanation of the most recent
-** error.
-*/
-SQLITE_API const void *tdsqlite3_errmsg16(tdsqlite3 *db){
-  static const u16 outOfMem[] = {
-    'o', 'u', 't', ' ', 'o', 'f', ' ', 'm', 'e', 'm', 'o', 'r', 'y', 0
-  };
-  static const u16 misuse[] = {
-    'b', 'a', 'd', ' ', 'p', 'a', 'r', 'a', 'm', 'e', 't', 'e', 'r', ' ',
-    'o', 'r', ' ', 'o', 't', 'h', 'e', 'r', ' ', 'A', 'P', 'I', ' ',
-    'm', 'i', 's', 'u', 's', 'e', 0
-  };
-
-  const void *z;
-  if( !db ){
-    return (void *)outOfMem;
-  }
-  if( !tdsqlite3SafetyCheckSickOrOk(db) ){
-    return (void *)misuse;
-  }
-  tdsqlite3_mutex_enter(db->mutex);
-  if( db->mallocFailed ){
-    z = (void *)outOfMem;
-  }else{
-    z = tdsqlite3_value_text16(db->pErr);
-    if( z==0 ){
-      tdsqlite3ErrorWithMsg(db, db->errCode, tdsqlite3ErrStr(db->errCode));
-      z = tdsqlite3_value_text16(db->pErr);
-    }
-    /* A malloc() may have failed within the call to tdsqlite3_value_text16()
-    ** above. If this is the case, then the db->mallocFailed flag needs to
-    ** be cleared before returning. Do this directly, instead of via
-    ** tdsqlite3ApiExit(), to avoid setting the database handle error message.
-    */
-    tdsqlite3OomClear(db);
-  }
-  tdsqlite3_mutex_leave(db->mutex);
-  return z;
-}
-#endif /* SQLITE_OMIT_UTF16 */
-
-/*
-** Return the most recent error code generated by an SQLite routine. If NULL is
-** passed to this function, we assume a malloc() failed during tdsqlite3_open().
-*/
-SQLITE_API int tdsqlite3_errcode(tdsqlite3 *db){
-  if( db && !tdsqlite3SafetyCheckSickOrOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-  if( !db || db->mallocFailed ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  return db->errCode & db->errMask;
-}
-SQLITE_API int tdsqlite3_extended_errcode(tdsqlite3 *db){
-  if( db && !tdsqlite3SafetyCheckSickOrOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-  if( !db || db->mallocFailed ){
-    return SQLITE_NOMEM_BKPT;
-  }
-  return db->errCode;
-}
-SQLITE_API int tdsqlite3_system_errno(tdsqlite3 *db){
-  return db ? db->iSysErrno : 0;
-}  
-
-/*
-** Return a string that describes the kind of error specified in the
-** argument.  For now, this simply calls the internal tdsqlite3ErrStr()
-** function.
-*/
-SQLITE_API const char *tdsqlite3_errstr(int rc){
-  return tdsqlite3ErrStr(rc);
-}
-
-/*
-** Create a new collating function for database "db".  The name is zName
-** and the encoding is enc.
-*/
-static int createCollation(
-  tdsqlite3* db,
-  const char *zName, 
-  u8 enc,
-  void* pCtx,
-  int(*xCompare)(void*,int,const void*,int,const void*),
-  void(*xDel)(void*)
-){
-  CollSeq *pColl;
-  int enc2;
-  
-  assert( tdsqlite3_mutex_held(db->mutex) );
-
-  /* If SQLITE_UTF16 is specified as the encoding type, transform this
-  ** to one of SQLITE_UTF16LE or SQLITE_UTF16BE using the
-  ** SQLITE_UTF16NATIVE macro. SQLITE_UTF16 is not used internally.
-  */
-  enc2 = enc;
-  testcase( enc2==SQLITE_UTF16 );
-  testcase( enc2==SQLITE_UTF16_ALIGNED );
-  if( enc2==SQLITE_UTF16 || enc2==SQLITE_UTF16_ALIGNED ){
-    enc2 = SQLITE_UTF16NATIVE;
-  }
-  if( enc2<SQLITE_UTF8 || enc2>SQLITE_UTF16BE ){
-    return SQLITE_MISUSE_BKPT;
-  }
-
-  /* Check if this call is removing or replacing an existing collation 
-  ** sequence. If so, and there are active VMs, return busy. If there
-  ** are no active VMs, invalidate any pre-compiled statements.
-  */
-  pColl = tdsqlite3FindCollSeq(db, (u8)enc2, zName, 0);
-  if( pColl && pColl->xCmp ){
-    if( db->nVdbeActive ){
-      tdsqlite3ErrorWithMsg(db, SQLITE_BUSY, 
-        "unable to delete/modify collation sequence due to active statements");
-      return SQLITE_BUSY;
-    }
-    tdsqlite3ExpirePreparedStatements(db, 0);
-
-    /* If collation sequence pColl was created directly by a call to
-    ** tdsqlite3_create_collation, and not generated by synthCollSeq(),
-    ** then any copies made by synthCollSeq() need to be invalidated.
-    ** Also, collation destructor - CollSeq.xDel() - function may need
-    ** to be called.
-    */ 
-    if( (pColl->enc & ~SQLITE_UTF16_ALIGNED)==enc2 ){
-      CollSeq *aColl = tdsqlite3HashFind(&db->aCollSeq, zName);
-      int j;
-      for(j=0; j<3; j++){
-        CollSeq *p = &aColl[j];
-        if( p->enc==pColl->enc ){
-          if( p->xDel ){
-            p->xDel(p->pUser);
-          }
-          p->xCmp = 0;
-        }
-      }
-    }
-  }
-
-  pColl = tdsqlite3FindCollSeq(db, (u8)enc2, zName, 1);
-  if( pColl==0 ) return SQLITE_NOMEM_BKPT;
-  pColl->xCmp = xCompare;
-  pColl->pUser = pCtx;
-  pColl->xDel = xDel;
-  pColl->enc = (u8)(enc2 | (enc & SQLITE_UTF16_ALIGNED));
-  tdsqlite3Error(db, SQLITE_OK);
-  return SQLITE_OK;
-}
-
-
-/*
-** This array defines hard upper bounds on limit values.  The
-** initializer must be kept in sync with the SQLITE_LIMIT_*
-** #defines in sqlite3.h.
-*/
-static const int aHardLimit[] = {
-  SQLITE_MAX_LENGTH,
-  SQLITE_MAX_SQL_LENGTH,
-  SQLITE_MAX_COLUMN,
-  SQLITE_MAX_EXPR_DEPTH,
-  SQLITE_MAX_COMPOUND_SELECT,
-  SQLITE_MAX_VDBE_OP,
-  SQLITE_MAX_FUNCTION_ARG,
-  SQLITE_MAX_ATTACHED,
-  SQLITE_MAX_LIKE_PATTERN_LENGTH,
-  SQLITE_MAX_VARIABLE_NUMBER,      /* IMP: R-38091-32352 */
-  SQLITE_MAX_TRIGGER_DEPTH,
-  SQLITE_MAX_WORKER_THREADS,
-};
-
-/*
-** Make sure the hard limits are set to reasonable values
-*/
-#if SQLITE_MAX_LENGTH<100
-# error SQLITE_MAX_LENGTH must be at least 100
-#endif
-#if SQLITE_MAX_SQL_LENGTH<100
-# error SQLITE_MAX_SQL_LENGTH must be at least 100
-#endif
-#if SQLITE_MAX_SQL_LENGTH>SQLITE_MAX_LENGTH
-# error SQLITE_MAX_SQL_LENGTH must not be greater than SQLITE_MAX_LENGTH
-#endif
-#if SQLITE_MAX_COMPOUND_SELECT<2
-# error SQLITE_MAX_COMPOUND_SELECT must be at least 2
-#endif
-#if SQLITE_MAX_VDBE_OP<40
-# error SQLITE_MAX_VDBE_OP must be at least 40
-#endif
-#if SQLITE_MAX_FUNCTION_ARG<0 || SQLITE_MAX_FUNCTION_ARG>127
-# error SQLITE_MAX_FUNCTION_ARG must be between 0 and 127
-#endif
-#if SQLITE_MAX_ATTACHED<0 || SQLITE_MAX_ATTACHED>125
-# error SQLITE_MAX_ATTACHED must be between 0 and 125
-#endif
-#if SQLITE_MAX_LIKE_PATTERN_LENGTH<1
-# error SQLITE_MAX_LIKE_PATTERN_LENGTH must be at least 1
-#endif
-#if SQLITE_MAX_COLUMN>32767
-# error SQLITE_MAX_COLUMN must not exceed 32767
-#endif
-#if SQLITE_MAX_TRIGGER_DEPTH<1
-# error SQLITE_MAX_TRIGGER_DEPTH must be at least 1
-#endif
-#if SQLITE_MAX_WORKER_THREADS<0 || SQLITE_MAX_WORKER_THREADS>50
-# error SQLITE_MAX_WORKER_THREADS must be between 0 and 50
-#endif
-
-
-/*
-** Change the value of a limit.  Report the old value.
-** If an invalid limit index is supplied, report -1.
-** Make no changes but still report the old value if the
-** new limit is negative.
-**
-** A new lower limit does not shrink existing constructs.
-** It merely prevents new constructs that exceed the limit
-** from forming.
-*/
-SQLITE_API int tdsqlite3_limit(tdsqlite3 *db, int limitId, int newLimit){
-  int oldLimit;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return -1;
-  }
-#endif
-
-  /* EVIDENCE-OF: R-30189-54097 For each limit category SQLITE_LIMIT_NAME
-  ** there is a hard upper bound set at compile-time by a C preprocessor
-  ** macro called SQLITE_MAX_NAME. (The "_LIMIT_" in the name is changed to
-  ** "_MAX_".)
-  */
-  assert( aHardLimit[SQLITE_LIMIT_LENGTH]==SQLITE_MAX_LENGTH );
-  assert( aHardLimit[SQLITE_LIMIT_SQL_LENGTH]==SQLITE_MAX_SQL_LENGTH );
-  assert( aHardLimit[SQLITE_LIMIT_COLUMN]==SQLITE_MAX_COLUMN );
-  assert( aHardLimit[SQLITE_LIMIT_EXPR_DEPTH]==SQLITE_MAX_EXPR_DEPTH );
-  assert( aHardLimit[SQLITE_LIMIT_COMPOUND_SELECT]==SQLITE_MAX_COMPOUND_SELECT);
-  assert( aHardLimit[SQLITE_LIMIT_VDBE_OP]==SQLITE_MAX_VDBE_OP );
-  assert( aHardLimit[SQLITE_LIMIT_FUNCTION_ARG]==SQLITE_MAX_FUNCTION_ARG );
-  assert( aHardLimit[SQLITE_LIMIT_ATTACHED]==SQLITE_MAX_ATTACHED );
-  assert( aHardLimit[SQLITE_LIMIT_LIKE_PATTERN_LENGTH]==
-                                               SQLITE_MAX_LIKE_PATTERN_LENGTH );
-  assert( aHardLimit[SQLITE_LIMIT_VARIABLE_NUMBER]==SQLITE_MAX_VARIABLE_NUMBER);
-  assert( aHardLimit[SQLITE_LIMIT_TRIGGER_DEPTH]==SQLITE_MAX_TRIGGER_DEPTH );
-  assert( aHardLimit[SQLITE_LIMIT_WORKER_THREADS]==SQLITE_MAX_WORKER_THREADS );
-  assert( SQLITE_LIMIT_WORKER_THREADS==(SQLITE_N_LIMIT-1) );
-
-
-  if( limitId<0 || limitId>=SQLITE_N_LIMIT ){
-    return -1;
-  }
-  oldLimit = db->aLimit[limitId];
-  if( newLimit>=0 ){                   /* IMP: R-52476-28732 */
-    if( newLimit>aHardLimit[limitId] ){
-      newLimit = aHardLimit[limitId];  /* IMP: R-51463-25634 */
-    }
-    db->aLimit[limitId] = newLimit;
-  }
-  return oldLimit;                     /* IMP: R-53341-35419 */
-}
-
-/*
-** This function is used to parse both URIs and non-URI filenames passed by the
-** user to API functions tdsqlite3_open() or tdsqlite3_open_v2(), and for database
-** URIs specified as part of ATTACH statements.
-**
-** The first argument to this function is the name of the VFS to use (or
-** a NULL to signify the default VFS) if the URI does not contain a "vfs=xxx"
-** query parameter. The second argument contains the URI (or non-URI filename)
-** itself. When this function is called the *pFlags variable should contain
-** the default flags to open the database handle with. The value stored in
-** *pFlags may be updated before returning if the URI filename contains 
-** "cache=xxx" or "mode=xxx" query parameters.
-**
-** If successful, SQLITE_OK is returned. In this case *ppVfs is set to point to
-** the VFS that should be used to open the database file. *pzFile is set to
-** point to a buffer containing the name of the file to open. It is the 
-** responsibility of the caller to eventually call tdsqlite3_free() to release
-** this buffer.
-**
-** If an error occurs, then an SQLite error code is returned and *pzErrMsg
-** may be set to point to a buffer containing an English language error 
-** message. It is the responsibility of the caller to eventually release
-** this buffer by calling tdsqlite3_free().
-*/
-SQLITE_PRIVATE int tdsqlite3ParseUri(
-  const char *zDefaultVfs,        /* VFS to use if no "vfs=xxx" query option */
-  const char *zUri,               /* Nul-terminated URI to parse */
-  unsigned int *pFlags,           /* IN/OUT: SQLITE_OPEN_XXX flags */
-  tdsqlite3_vfs **ppVfs,            /* OUT: VFS to use */ 
-  char **pzFile,                  /* OUT: Filename component of URI */
-  char **pzErrMsg                 /* OUT: Error message (if rc!=SQLITE_OK) */
-){
-  int rc = SQLITE_OK;
-  unsigned int flags = *pFlags;
-  const char *zVfs = zDefaultVfs;
-  char *zFile;
-  char c;
-  int nUri = tdsqlite3Strlen30(zUri);
-
-  assert( *pzErrMsg==0 );
-
-  if( ((flags & SQLITE_OPEN_URI)             /* IMP: R-48725-32206 */
-            || tdsqlite3GlobalConfig.bOpenUri) /* IMP: R-51689-46548 */
-   && nUri>=5 && memcmp(zUri, "file:", 5)==0 /* IMP: R-57884-37496 */
-  ){
-    char *zOpt;
-    int eState;                   /* Parser state when parsing URI */
-    int iIn;                      /* Input character index */
-    int iOut = 0;                 /* Output character index */
-    u64 nByte = nUri+2;           /* Bytes of space to allocate */
-
-    /* Make sure the SQLITE_OPEN_URI flag is set to indicate to the VFS xOpen 
-    ** method that there may be extra parameters following the file-name.  */
-    flags |= SQLITE_OPEN_URI;
-
-    for(iIn=0; iIn<nUri; iIn++) nByte += (zUri[iIn]=='&');
-    zFile = tdsqlite3_malloc64(nByte);
-    if( !zFile ) return SQLITE_NOMEM_BKPT;
-
-    iIn = 5;
-#ifdef SQLITE_ALLOW_URI_AUTHORITY
-    if( strncmp(zUri+5, "///", 3)==0 ){
-      iIn = 7;
-      /* The following condition causes URIs with five leading / characters
-      ** like file://///host/path to be converted into UNCs like //host/path.
-      ** The correct URI for that UNC has only two or four leading / characters
-      ** file://host/path or file:////host/path.  But 5 leading slashes is a 
-      ** common error, we are told, so we handle it as a special case. */
-      if( strncmp(zUri+7, "///", 3)==0 ){ iIn++; }
-    }else if( strncmp(zUri+5, "//localhost/", 12)==0 ){
-      iIn = 16;
-    }
-#else
-    /* Discard the scheme and authority segments of the URI. */
-    if( zUri[5]=='/' && zUri[6]=='/' ){
-      iIn = 7;
-      while( zUri[iIn] && zUri[iIn]!='/' ) iIn++;
-      if( iIn!=7 && (iIn!=16 || memcmp("localhost", &zUri[7], 9)) ){
-        *pzErrMsg = tdsqlite3_mprintf("invalid uri authority: %.*s", 
-            iIn-7, &zUri[7]);
-        rc = SQLITE_ERROR;
-        goto parse_uri_out;
-      }
-    }
-#endif
-
-    /* Copy the filename and any query parameters into the zFile buffer. 
-    ** Decode %HH escape codes along the way. 
-    **
-    ** Within this loop, variable eState may be set to 0, 1 or 2, depending
-    ** on the parsing context. As follows:
-    **
-    **   0: Parsing file-name.
-    **   1: Parsing name section of a name=value query parameter.
-    **   2: Parsing value section of a name=value query parameter.
-    */
-    eState = 0;
-    while( (c = zUri[iIn])!=0 && c!='#' ){
-      iIn++;
-      if( c=='%' 
-       && tdsqlite3Isxdigit(zUri[iIn]) 
-       && tdsqlite3Isxdigit(zUri[iIn+1]) 
-      ){
-        int octet = (tdsqlite3HexToInt(zUri[iIn++]) << 4);
-        octet += tdsqlite3HexToInt(zUri[iIn++]);
-
-        assert( octet>=0 && octet<256 );
-        if( octet==0 ){
-#ifndef SQLITE_ENABLE_URI_00_ERROR
-          /* This branch is taken when "%00" appears within the URI. In this
-          ** case we ignore all text in the remainder of the path, name or
-          ** value currently being parsed. So ignore the current character
-          ** and skip to the next "?", "=" or "&", as appropriate. */
-          while( (c = zUri[iIn])!=0 && c!='#' 
-              && (eState!=0 || c!='?')
-              && (eState!=1 || (c!='=' && c!='&'))
-              && (eState!=2 || c!='&')
-          ){
-            iIn++;
-          }
-          continue;
-#else
-          /* If ENABLE_URI_00_ERROR is defined, "%00" in a URI is an error. */
-          *pzErrMsg = tdsqlite3_mprintf("unexpected %%00 in uri");
-          rc = SQLITE_ERROR;
-          goto parse_uri_out;
-#endif
-        }
-        c = octet;
-      }else if( eState==1 && (c=='&' || c=='=') ){
-        if( zFile[iOut-1]==0 ){
-          /* An empty option name. Ignore this option altogether. */
-          while( zUri[iIn] && zUri[iIn]!='#' && zUri[iIn-1]!='&' ) iIn++;
-          continue;
-        }
-        if( c=='&' ){
-          zFile[iOut++] = '\0';
-        }else{
-          eState = 2;
-        }
-        c = 0;
-      }else if( (eState==0 && c=='?') || (eState==2 && c=='&') ){
-        c = 0;
-        eState = 1;
-      }
-      zFile[iOut++] = c;
-    }
-    if( eState==1 ) zFile[iOut++] = '\0';
-    zFile[iOut++] = '\0';
-    zFile[iOut++] = '\0';
-
-    /* Check if there were any options specified that should be interpreted 
-    ** here. Options that are interpreted here include "vfs" and those that
-    ** correspond to flags that may be passed to the tdsqlite3_open_v2()
-    ** method. */
-    zOpt = &zFile[tdsqlite3Strlen30(zFile)+1];
-    while( zOpt[0] ){
-      int nOpt = tdsqlite3Strlen30(zOpt);
-      char *zVal = &zOpt[nOpt+1];
-      int nVal = tdsqlite3Strlen30(zVal);
-
-      if( nOpt==3 && memcmp("vfs", zOpt, 3)==0 ){
-        zVfs = zVal;
-      }else{
-        struct OpenMode {
-          const char *z;
-          int mode;
-        } *aMode = 0;
-        char *zModeType = 0;
-        int mask = 0;
-        int limit = 0;
-
-        if( nOpt==5 && memcmp("cache", zOpt, 5)==0 ){
-          static struct OpenMode aCacheMode[] = {
-            { "shared",  SQLITE_OPEN_SHAREDCACHE },
-            { "private", SQLITE_OPEN_PRIVATECACHE },
-            { 0, 0 }
-          };
-
-          mask = SQLITE_OPEN_SHAREDCACHE|SQLITE_OPEN_PRIVATECACHE;
-          aMode = aCacheMode;
-          limit = mask;
-          zModeType = "cache";
-        }
-        if( nOpt==4 && memcmp("mode", zOpt, 4)==0 ){
-          static struct OpenMode aOpenMode[] = {
-            { "ro",  SQLITE_OPEN_READONLY },
-            { "rw",  SQLITE_OPEN_READWRITE }, 
-            { "rwc", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE },
-            { "memory", SQLITE_OPEN_MEMORY },
-            { 0, 0 }
-          };
-
-          mask = SQLITE_OPEN_READONLY | SQLITE_OPEN_READWRITE
-                   | SQLITE_OPEN_CREATE | SQLITE_OPEN_MEMORY;
-          aMode = aOpenMode;
-          limit = mask & flags;
-          zModeType = "access";
-        }
-
-        if( aMode ){
-          int i;
-          int mode = 0;
-          for(i=0; aMode[i].z; i++){
-            const char *z = aMode[i].z;
-            if( nVal==tdsqlite3Strlen30(z) && 0==memcmp(zVal, z, nVal) ){
-              mode = aMode[i].mode;
-              break;
-            }
-          }
-          if( mode==0 ){
-            *pzErrMsg = tdsqlite3_mprintf("no such %s mode: %s", zModeType, zVal);
-            rc = SQLITE_ERROR;
-            goto parse_uri_out;
-          }
-          if( (mode & ~SQLITE_OPEN_MEMORY)>limit ){
-            *pzErrMsg = tdsqlite3_mprintf("%s mode not allowed: %s",
-                                        zModeType, zVal);
-            rc = SQLITE_PERM;
-            goto parse_uri_out;
-          }
-          flags = (flags & ~mask) | mode;
-        }
-      }
-
-      zOpt = &zVal[nVal+1];
-    }
-
-  }else{
-    zFile = tdsqlite3_malloc64(nUri+2);
-    if( !zFile ) return SQLITE_NOMEM_BKPT;
-    if( nUri ){
-      memcpy(zFile, zUri, nUri);
-    }
-    zFile[nUri] = '\0';
-    zFile[nUri+1] = '\0';
-    flags &= ~SQLITE_OPEN_URI;
-  }
-
-  *ppVfs = tdsqlite3_vfs_find(zVfs);
-  if( *ppVfs==0 ){
-    *pzErrMsg = tdsqlite3_mprintf("no such vfs: %s", zVfs);
-    rc = SQLITE_ERROR;
-  }
- parse_uri_out:
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_free(zFile);
-    zFile = 0;
-  }
-  *pFlags = flags;
-  *pzFile = zFile;
-  return rc;
-}
-
-#if defined(SQLITE_HAS_CODEC)
-/*
-** Process URI filename query parameters relevant to the SQLite Encryption
-** Extension.  Return true if any of the relevant query parameters are
-** seen and return false if not.
-*/
-SQLITE_PRIVATE int tdsqlite3CodecQueryParameters(
-  tdsqlite3 *db,           /* Database connection */
-  const char *zDb,       /* Which schema is being created/attached */
-  const char *zUri       /* URI filename */
-){
-  const char *zKey;
-  if( (zKey = tdsqlite3_uri_parameter(zUri, "hexkey"))!=0 && zKey[0] ){
-    u8 iByte;
-    int i;
-    char zDecoded[40];
-    for(i=0, iByte=0; i<sizeof(zDecoded)*2 && tdsqlite3Isxdigit(zKey[i]); i++){
-      iByte = (iByte<<4) + tdsqlite3HexToInt(zKey[i]);
-      if( (i&1)!=0 ) zDecoded[i/2] = iByte;
-    }
-    tdsqlite3_key_v2(db, zDb, zDecoded, i/2);
-    return 1;
-  }else if( (zKey = tdsqlite3_uri_parameter(zUri, "key"))!=0 ){
-    tdsqlite3_key_v2(db, zDb, zKey, tdsqlite3Strlen30(zKey));
-    return 1;
-  }else if( (zKey = tdsqlite3_uri_parameter(zUri, "textkey"))!=0 ){
-    tdsqlite3_key_v2(db, zDb, zKey, -1);
-    return 1;
-  }else{
-    return 0;
-  }
-}
-#endif
-
-
-/*
-** This routine does the work of opening a database on behalf of
-** tdsqlite3_open() and tdsqlite3_open16(). The database filename "zFilename"  
-** is UTF-8 encoded.
-*/
-static int openDatabase(
-  const char *zFilename, /* Database filename UTF-8 encoded */
-  tdsqlite3 **ppDb,        /* OUT: Returned database handle */
-  unsigned int flags,    /* Operational flags */
-  const char *zVfs       /* Name of the VFS to use */
-){
-  tdsqlite3 *db;                    /* Store allocated handle here */
-  int rc;                         /* Return code */
-  int isThreadsafe;               /* True for threadsafe connections */
-  char *zOpen = 0;                /* Filename argument to pass to BtreeOpen() */
-  char *zErrMsg = 0;              /* Error message from tdsqlite3ParseUri() */
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( ppDb==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  *ppDb = 0;
-#ifndef SQLITE_OMIT_AUTOINIT
-  rc = tdsqlite3_initialize();
-  if( rc ) return rc;
-#endif
-
-  if( tdsqlite3GlobalConfig.bCoreMutex==0 ){
-    isThreadsafe = 0;
-  }else if( flags & SQLITE_OPEN_NOMUTEX ){
-    isThreadsafe = 0;
-  }else if( flags & SQLITE_OPEN_FULLMUTEX ){
-    isThreadsafe = 1;
-  }else{
-    isThreadsafe = tdsqlite3GlobalConfig.bFullMutex;
-  }
-
-  if( flags & SQLITE_OPEN_PRIVATECACHE ){
-    flags &= ~SQLITE_OPEN_SHAREDCACHE;
-  }else if( tdsqlite3GlobalConfig.sharedCacheEnabled ){
-    flags |= SQLITE_OPEN_SHAREDCACHE;
-  }
-
-  /* Remove harmful bits from the flags parameter
-  **
-  ** The SQLITE_OPEN_NOMUTEX and SQLITE_OPEN_FULLMUTEX flags were
-  ** dealt with in the previous code block.  Besides these, the only
-  ** valid input flags for tdsqlite3_open_v2() are SQLITE_OPEN_READONLY,
-  ** SQLITE_OPEN_READWRITE, SQLITE_OPEN_CREATE, SQLITE_OPEN_SHAREDCACHE,
-  ** SQLITE_OPEN_PRIVATECACHE, and some reserved bits.  Silently mask
-  ** off all other flags.
-  */
-  flags &=  ~( SQLITE_OPEN_DELETEONCLOSE |
-               SQLITE_OPEN_EXCLUSIVE |
-               SQLITE_OPEN_MAIN_DB |
-               SQLITE_OPEN_TEMP_DB | 
-               SQLITE_OPEN_TRANSIENT_DB | 
-               SQLITE_OPEN_MAIN_JOURNAL | 
-               SQLITE_OPEN_TEMP_JOURNAL | 
-               SQLITE_OPEN_SUBJOURNAL | 
-               SQLITE_OPEN_MASTER_JOURNAL |
-               SQLITE_OPEN_NOMUTEX |
-               SQLITE_OPEN_FULLMUTEX |
-               SQLITE_OPEN_WAL
-             );
-
-  /* Allocate the sqlite data structure */
-  db = tdsqlite3MallocZero( sizeof(tdsqlite3) );
-  if( db==0 ) goto opendb_out;
-  if( isThreadsafe 
-#ifdef SQLITE_ENABLE_MULTITHREADED_CHECKS
-   || tdsqlite3GlobalConfig.bCoreMutex
-#endif
-  ){
-    db->mutex = tdsqlite3MutexAlloc(SQLITE_MUTEX_RECURSIVE);
-    if( db->mutex==0 ){
-      tdsqlite3_free(db);
-      db = 0;
-      goto opendb_out;
-    }
-    if( isThreadsafe==0 ){
-      tdsqlite3MutexWarnOnContention(db->mutex);
-    }
-  }
-  tdsqlite3_mutex_enter(db->mutex);
-  db->errMask = 0xff;
-  db->nDb = 2;
-  db->magic = SQLITE_MAGIC_BUSY;
-  db->aDb = db->aDbStatic;
-  db->lookaside.bDisable = 1;
-  db->lookaside.sz = 0;
-
-  assert( sizeof(db->aLimit)==sizeof(aHardLimit) );
-  memcpy(db->aLimit, aHardLimit, sizeof(db->aLimit));
-  db->aLimit[SQLITE_LIMIT_WORKER_THREADS] = SQLITE_DEFAULT_WORKER_THREADS;
-  db->autoCommit = 1;
-  db->nextAutovac = -1;
-  db->szMmap = tdsqlite3GlobalConfig.szMmap;
-  db->nextPagesize = 0;
-  db->nMaxSorterMmap = 0x7FFFFFFF;
-  db->flags |= SQLITE_ShortColNames
-                 | SQLITE_EnableTrigger
-                 | SQLITE_EnableView
-                 | SQLITE_CacheSpill
-#if !defined(SQLITE_TRUSTED_SCHEMA) || SQLITE_TRUSTED_SCHEMA+0!=0
-                 | SQLITE_TrustedSchema
-#endif
-/* The SQLITE_DQS compile-time option determines the default settings
-** for SQLITE_DBCONFIG_DQS_DDL and SQLITE_DBCONFIG_DQS_DML.
-**
-**    SQLITE_DQS     SQLITE_DBCONFIG_DQS_DDL    SQLITE_DBCONFIG_DQS_DML
-**    ----------     -----------------------    -----------------------
-**     undefined               on                          on   
-**         3                   on                          on
-**         2                   on                         off
-**         1                  off                          on
-**         0                  off                         off
-**
-** Legacy behavior is 3 (double-quoted string literals are allowed anywhere)
-** and so that is the default.  But developers are encouranged to use
-** -DSQLITE_DQS=0 (best) or -DSQLITE_DQS=1 (second choice) if possible.
-*/
-#if !defined(SQLITE_DQS)
-# define SQLITE_DQS 3
-#endif
-#if (SQLITE_DQS&1)==1
-                 | SQLITE_DqsDML
-#endif
-#if (SQLITE_DQS&2)==2
-                 | SQLITE_DqsDDL
-#endif
-
-#if !defined(SQLITE_DEFAULT_AUTOMATIC_INDEX) || SQLITE_DEFAULT_AUTOMATIC_INDEX
-                 | SQLITE_AutoIndex
-#endif
-#if SQLITE_DEFAULT_CKPTFULLFSYNC
-                 | SQLITE_CkptFullFSync
-#endif
-#if SQLITE_DEFAULT_FILE_FORMAT<4
-                 | SQLITE_LegacyFileFmt
-#endif
-#ifdef SQLITE_ENABLE_LOAD_EXTENSION
-                 | SQLITE_LoadExtension
-#endif
-#if SQLITE_DEFAULT_RECURSIVE_TRIGGERS
-                 | SQLITE_RecTriggers
-#endif
-#if defined(SQLITE_DEFAULT_FOREIGN_KEYS) && SQLITE_DEFAULT_FOREIGN_KEYS
-                 | SQLITE_ForeignKeys
-#endif
-#if defined(SQLITE_REVERSE_UNORDERED_SELECTS)
-                 | SQLITE_ReverseOrder
-#endif
-#if defined(SQLITE_ENABLE_OVERSIZE_CELL_CHECK)
-                 | SQLITE_CellSizeCk
-#endif
-#if defined(SQLITE_ENABLE_FTS3_TOKENIZER)
-                 | SQLITE_Fts3Tokenizer
-#endif
-#if defined(SQLITE_ENABLE_QPSG)
-                 | SQLITE_EnableQPSG
-#endif
-#if defined(SQLITE_DEFAULT_DEFENSIVE)
-                 | SQLITE_Defensive
-#endif
-      ;
-  tdsqlite3HashInit(&db->aCollSeq);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  tdsqlite3HashInit(&db->aModule);
-#endif
-
-  /* Add the default collation sequence BINARY. BINARY works for both UTF-8
-  ** and UTF-16, so add a version for each to avoid any unnecessary
-  ** conversions. The only error that can occur here is a malloc() failure.
-  **
-  ** EVIDENCE-OF: R-52786-44878 SQLite defines three built-in collating
-  ** functions:
-  */
-  createCollation(db, tdsqlite3StrBINARY, SQLITE_UTF8, 0, binCollFunc, 0);
-  createCollation(db, tdsqlite3StrBINARY, SQLITE_UTF16BE, 0, binCollFunc, 0);
-  createCollation(db, tdsqlite3StrBINARY, SQLITE_UTF16LE, 0, binCollFunc, 0);
-  createCollation(db, "NOCASE", SQLITE_UTF8, 0, nocaseCollatingFunc, 0);
-  createCollation(db, "RTRIM", SQLITE_UTF8, 0, rtrimCollFunc, 0);
-  if( db->mallocFailed ){
-    goto opendb_out;
-  }
-  /* EVIDENCE-OF: R-08308-17224 The default collating function for all
-  ** strings is BINARY. 
-  */
-  db->pDfltColl = tdsqlite3FindCollSeq(db, SQLITE_UTF8, tdsqlite3StrBINARY, 0);
-  assert( db->pDfltColl!=0 );
-
-  /* Parse the filename/URI argument
-  **
-  ** Only allow sensible combinations of bits in the flags argument.  
-  ** Throw an error if any non-sense combination is used.  If we
-  ** do not block illegal combinations here, it could trigger
-  ** assert() statements in deeper layers.  Sensible combinations
-  ** are:
-  **
-  **  1:  SQLITE_OPEN_READONLY
-  **  2:  SQLITE_OPEN_READWRITE
-  **  6:  SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE
-  */
-  db->openFlags = flags;
-  assert( SQLITE_OPEN_READONLY  == 0x01 );
-  assert( SQLITE_OPEN_READWRITE == 0x02 );
-  assert( SQLITE_OPEN_CREATE    == 0x04 );
-  testcase( (1<<(flags&7))==0x02 ); /* READONLY */
-  testcase( (1<<(flags&7))==0x04 ); /* READWRITE */
-  testcase( (1<<(flags&7))==0x40 ); /* READWRITE | CREATE */
-  if( ((1<<(flags&7)) & 0x46)==0 ){
-    rc = SQLITE_MISUSE_BKPT;  /* IMP: R-65497-44594 */
-  }else{
-    rc = tdsqlite3ParseUri(zVfs, zFilename, &flags, &db->pVfs, &zOpen, &zErrMsg);
-  }
-  if( rc!=SQLITE_OK ){
-    if( rc==SQLITE_NOMEM ) tdsqlite3OomFault(db);
-    tdsqlite3ErrorWithMsg(db, rc, zErrMsg ? "%s" : 0, zErrMsg);
-    tdsqlite3_free(zErrMsg);
-    goto opendb_out;
-  }
-
-  /* Open the backend database driver */
-  rc = tdsqlite3BtreeOpen(db->pVfs, zOpen, db, &db->aDb[0].pBt, 0,
-                        flags | SQLITE_OPEN_MAIN_DB);
-  if( rc!=SQLITE_OK ){
-    if( rc==SQLITE_IOERR_NOMEM ){
-      rc = SQLITE_NOMEM_BKPT;
-    }
-    tdsqlite3Error(db, rc);
-    goto opendb_out;
-  }
-  tdsqlite3BtreeEnter(db->aDb[0].pBt);
-  db->aDb[0].pSchema = tdsqlite3SchemaGet(db, db->aDb[0].pBt);
-  if( !db->mallocFailed ) ENC(db) = SCHEMA_ENC(db);
-  tdsqlite3BtreeLeave(db->aDb[0].pBt);
-  db->aDb[1].pSchema = tdsqlite3SchemaGet(db, 0);
-
-  /* The default safety_level for the main database is FULL; for the temp
-  ** database it is OFF. This matches the pager layer defaults.  
-  */
-  db->aDb[0].zDbSName = "main";
-  db->aDb[0].safety_level = SQLITE_DEFAULT_SYNCHRONOUS+1;
-  db->aDb[1].zDbSName = "temp";
-  db->aDb[1].safety_level = PAGER_SYNCHRONOUS_OFF;
-
-  db->magic = SQLITE_MAGIC_OPEN;
-  if( db->mallocFailed ){
-    goto opendb_out;
-  }
-
-  /* Register all built-in functions, but do not attempt to read the
-  ** database schema yet. This is delayed until the first time the database
-  ** is accessed.
-  */
-  tdsqlite3Error(db, SQLITE_OK);
-  tdsqlite3RegisterPerConnectionBuiltinFunctions(db);
-  rc = tdsqlite3_errcode(db);
-
-#ifdef SQLITE_ENABLE_FTS5
-  /* Register any built-in FTS5 module before loading the automatic
-  ** extensions. This allows automatic extensions to register FTS5 
-  ** tokenizers and auxiliary functions.  */
-  if( !db->mallocFailed && rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5Init(db);
-  }
-#endif
-
-  /* Load automatic extensions - extensions that have been registered
-  ** using the tdsqlite3_automatic_extension() API.
-  */
-  if( rc==SQLITE_OK ){
-    tdsqlite3AutoLoadExtensions(db);
-    rc = tdsqlite3_errcode(db);
-    if( rc!=SQLITE_OK ){
-      goto opendb_out;
-    }
-  }
-
-#ifdef SQLITE_ENABLE_FTS1
-  if( !db->mallocFailed ){
-    extern int tdsqlite3Fts1Init(tdsqlite3*);
-    rc = tdsqlite3Fts1Init(db);
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_FTS2
-  if( !db->mallocFailed && rc==SQLITE_OK ){
-    extern int tdsqlite3Fts2Init(tdsqlite3*);
-    rc = tdsqlite3Fts2Init(db);
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_FTS3 /* automatically defined by SQLITE_ENABLE_FTS4 */
-  if( !db->mallocFailed && rc==SQLITE_OK ){
-    rc = tdsqlite3Fts3Init(db);
-  }
-#endif
-
-#if defined(SQLITE_ENABLE_ICU) || defined(SQLITE_ENABLE_ICU_COLLATIONS)
-  if( !db->mallocFailed && rc==SQLITE_OK ){
-    rc = tdsqlite3IcuInit(db);
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_RTREE
-  if( !db->mallocFailed && rc==SQLITE_OK){
-    rc = tdsqlite3RtreeInit(db);
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_DBPAGE_VTAB
-  if( !db->mallocFailed && rc==SQLITE_OK){
-    rc = tdsqlite3DbpageRegister(db);
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_DBSTAT_VTAB
-  if( !db->mallocFailed && rc==SQLITE_OK){
-    rc = tdsqlite3DbstatRegister(db);
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_JSON1
-  if( !db->mallocFailed && rc==SQLITE_OK){
-    rc = tdsqlite3Json1Init(db);
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_STMTVTAB
-  if( !db->mallocFailed && rc==SQLITE_OK){
-    rc = tdsqlite3StmtVtabInit(db);
-  }
-#endif
-
-#ifdef SQLCIPHER_EXT
-  if( !db->mallocFailed && rc==SQLITE_OK ){
-    extern int sqlcipherVtabInit(tdsqlite3 *);
-    rc = sqlcipherVtabInit(db);
-  }
-#endif
-
-#ifdef SQLITE_ENABLE_INTERNAL_FUNCTIONS
-  /* Testing use only!!! The -DSQLITE_ENABLE_INTERNAL_FUNCTIONS=1 compile-time
-  ** option gives access to internal functions by default.  
-  ** Testing use only!!! */
-  db->mDbFlags |= DBFLAG_InternalFunc;
-#endif
-
-  /* -DSQLITE_DEFAULT_LOCKING_MODE=1 makes EXCLUSIVE the default locking
-  ** mode.  -DSQLITE_DEFAULT_LOCKING_MODE=0 make NORMAL the default locking
-  ** mode.  Doing nothing at all also makes NORMAL the default.
-  */
-#ifdef SQLITE_DEFAULT_LOCKING_MODE
-  db->dfltLockMode = SQLITE_DEFAULT_LOCKING_MODE;
-  tdsqlite3PagerLockingMode(tdsqlite3BtreePager(db->aDb[0].pBt),
-                          SQLITE_DEFAULT_LOCKING_MODE);
-#endif
-
-  if( rc ) tdsqlite3Error(db, rc);
-
-  /* Enable the lookaside-malloc subsystem */
-  setupLookaside(db, 0, tdsqlite3GlobalConfig.szLookaside,
-                        tdsqlite3GlobalConfig.nLookaside);
-
-  tdsqlite3_wal_autocheckpoint(db, SQLITE_DEFAULT_WAL_AUTOCHECKPOINT);
-
-opendb_out:
-  if( db ){
-    assert( db->mutex!=0 || isThreadsafe==0
-           || tdsqlite3GlobalConfig.bFullMutex==0 );
-    tdsqlite3_mutex_leave(db->mutex);
-  }
-  rc = tdsqlite3_errcode(db);
-  assert( db!=0 || rc==SQLITE_NOMEM );
-  if( rc==SQLITE_NOMEM ){
-    tdsqlite3_close(db);
-    db = 0;
-  }else if( rc!=SQLITE_OK ){
-    db->magic = SQLITE_MAGIC_SICK;
-  }
-  *ppDb = db;
-#ifdef SQLITE_ENABLE_SQLLOG
-  if( tdsqlite3GlobalConfig.xSqllog ){
-    /* Opening a db handle. Fourth parameter is passed 0. */
-    void *pArg = tdsqlite3GlobalConfig.pSqllogArg;
-    tdsqlite3GlobalConfig.xSqllog(pArg, db, zFilename, 0);
-  }
-#endif
-#if defined(SQLITE_HAS_CODEC)
-  if( rc==SQLITE_OK ) tdsqlite3CodecQueryParameters(db, 0, zOpen);
-#endif
-  tdsqlite3_free(zOpen);
-  return rc & 0xff;
-}
-
-
-/*
-** Open a new database handle.
-*/
-SQLITE_API int tdsqlite3_open(
-  const char *zFilename, 
-  tdsqlite3 **ppDb 
-){
-  return openDatabase(zFilename, ppDb,
-                      SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0);
-}
-SQLITE_API int tdsqlite3_open_v2(
-  const char *filename,   /* Database filename (UTF-8) */
-  tdsqlite3 **ppDb,         /* OUT: SQLite db handle */
-  int flags,              /* Flags */
-  const char *zVfs        /* Name of VFS module to use */
-){
-  return openDatabase(filename, ppDb, (unsigned int)flags, zVfs);
-}
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** Open a new database handle.
-*/
-SQLITE_API int tdsqlite3_open16(
-  const void *zFilename, 
-  tdsqlite3 **ppDb
-){
-  char const *zFilename8;   /* zFilename encoded in UTF-8 instead of UTF-16 */
-  tdsqlite3_value *pVal;
-  int rc;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( ppDb==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  *ppDb = 0;
-#ifndef SQLITE_OMIT_AUTOINIT
-  rc = tdsqlite3_initialize();
-  if( rc ) return rc;
-#endif
-  if( zFilename==0 ) zFilename = "\000\000";
-  pVal = tdsqlite3ValueNew(0);
-  tdsqlite3ValueSetStr(pVal, -1, zFilename, SQLITE_UTF16NATIVE, SQLITE_STATIC);
-  zFilename8 = tdsqlite3ValueText(pVal, SQLITE_UTF8);
-  if( zFilename8 ){
-    rc = openDatabase(zFilename8, ppDb,
-                      SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0);
-    assert( *ppDb || rc==SQLITE_NOMEM );
-    if( rc==SQLITE_OK && !DbHasProperty(*ppDb, 0, DB_SchemaLoaded) ){
-      SCHEMA_ENC(*ppDb) = ENC(*ppDb) = SQLITE_UTF16NATIVE;
-    }
-  }else{
-    rc = SQLITE_NOMEM_BKPT;
-  }
-  tdsqlite3ValueFree(pVal);
-
-  return rc & 0xff;
-}
-#endif /* SQLITE_OMIT_UTF16 */
-
-/*
-** Register a new collation sequence with the database handle db.
-*/
-SQLITE_API int tdsqlite3_create_collation(
-  tdsqlite3* db, 
-  const char *zName, 
-  int enc, 
-  void* pCtx,
-  int(*xCompare)(void*,int,const void*,int,const void*)
-){
-  return tdsqlite3_create_collation_v2(db, zName, enc, pCtx, xCompare, 0);
-}
-
-/*
-** Register a new collation sequence with the database handle db.
-*/
-SQLITE_API int tdsqlite3_create_collation_v2(
-  tdsqlite3* db, 
-  const char *zName, 
-  int enc, 
-  void* pCtx,
-  int(*xCompare)(void*,int,const void*,int,const void*),
-  void(*xDel)(void*)
-){
-  int rc;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zName==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  assert( !db->mallocFailed );
-  rc = createCollation(db, zName, (u8)enc, pCtx, xCompare, xDel);
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** Register a new collation sequence with the database handle db.
-*/
-SQLITE_API int tdsqlite3_create_collation16(
-  tdsqlite3* db, 
-  const void *zName,
-  int enc, 
-  void* pCtx,
-  int(*xCompare)(void*,int,const void*,int,const void*)
-){
-  int rc = SQLITE_OK;
-  char *zName8;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zName==0 ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  assert( !db->mallocFailed );
-  zName8 = tdsqlite3Utf16to8(db, zName, -1, SQLITE_UTF16NATIVE);
-  if( zName8 ){
-    rc = createCollation(db, zName8, (u8)enc, pCtx, xCompare, 0);
-    tdsqlite3DbFree(db, zName8);
-  }
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-#endif /* SQLITE_OMIT_UTF16 */
-
-/*
-** Register a collation sequence factory callback with the database handle
-** db. Replace any previously installed collation sequence factory.
-*/
-SQLITE_API int tdsqlite3_collation_needed(
-  tdsqlite3 *db, 
-  void *pCollNeededArg, 
-  void(*xCollNeeded)(void*,tdsqlite3*,int eTextRep,const char*)
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  db->xCollNeeded = xCollNeeded;
-  db->xCollNeeded16 = 0;
-  db->pCollNeededArg = pCollNeededArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return SQLITE_OK;
-}
-
-#ifndef SQLITE_OMIT_UTF16
-/*
-** Register a collation sequence factory callback with the database handle
-** db. Replace any previously installed collation sequence factory.
-*/
-SQLITE_API int tdsqlite3_collation_needed16(
-  tdsqlite3 *db, 
-  void *pCollNeededArg, 
-  void(*xCollNeeded16)(void*,tdsqlite3*,int eTextRep,const void*)
-){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  db->xCollNeeded = 0;
-  db->xCollNeeded16 = xCollNeeded16;
-  db->pCollNeededArg = pCollNeededArg;
-  tdsqlite3_mutex_leave(db->mutex);
-  return SQLITE_OK;
-}
-#endif /* SQLITE_OMIT_UTF16 */
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/*
-** This function is now an anachronism. It used to be used to recover from a
-** malloc() failure, but SQLite now does this automatically.
-*/
-SQLITE_API int tdsqlite3_global_recover(void){
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** Test to see whether or not the database connection is in autocommit
-** mode.  Return TRUE if it is and FALSE if not.  Autocommit mode is on
-** by default.  Autocommit is disabled by a BEGIN statement and reenabled
-** by the next COMMIT or ROLLBACK.
-*/
-SQLITE_API int tdsqlite3_get_autocommit(tdsqlite3 *db){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  return db->autoCommit;
-}
-
-/*
-** The following routines are substitutes for constants SQLITE_CORRUPT,
-** SQLITE_MISUSE, SQLITE_CANTOPEN, SQLITE_NOMEM and possibly other error
-** constants.  They serve two purposes:
-**
-**   1.  Serve as a convenient place to set a breakpoint in a debugger
-**       to detect when version error conditions occurs.
-**
-**   2.  Invoke tdsqlite3_log() to provide the source code location where
-**       a low-level error is first detected.
-*/
-SQLITE_PRIVATE int tdsqlite3ReportError(int iErr, int lineno, const char *zType){
-  tdsqlite3_log(iErr, "%s at line %d of [%.10s]",
-              zType, lineno, 20+tdsqlite3_sourceid());
-  return iErr;
-}
-SQLITE_PRIVATE int tdsqlite3CorruptError(int lineno){
-  testcase( tdsqlite3GlobalConfig.xLog!=0 );
-  return tdsqlite3ReportError(SQLITE_CORRUPT, lineno, "database corruption");
-}
-SQLITE_PRIVATE int tdsqlite3MisuseError(int lineno){
-  testcase( tdsqlite3GlobalConfig.xLog!=0 );
-  return tdsqlite3ReportError(SQLITE_MISUSE, lineno, "misuse");
-}
-SQLITE_PRIVATE int tdsqlite3CantopenError(int lineno){
-  testcase( tdsqlite3GlobalConfig.xLog!=0 );
-  return tdsqlite3ReportError(SQLITE_CANTOPEN, lineno, "cannot open file");
-}
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3CorruptPgnoError(int lineno, Pgno pgno){
-  char zMsg[100];
-  tdsqlite3_snprintf(sizeof(zMsg), zMsg, "database corruption page %d", pgno);
-  testcase( tdsqlite3GlobalConfig.xLog!=0 );
-  return tdsqlite3ReportError(SQLITE_CORRUPT, lineno, zMsg);
-}
-SQLITE_PRIVATE int tdsqlite3NomemError(int lineno){
-  testcase( tdsqlite3GlobalConfig.xLog!=0 );
-  return tdsqlite3ReportError(SQLITE_NOMEM, lineno, "OOM");
-}
-SQLITE_PRIVATE int tdsqlite3IoerrnomemError(int lineno){
-  testcase( tdsqlite3GlobalConfig.xLog!=0 );
-  return tdsqlite3ReportError(SQLITE_IOERR_NOMEM, lineno, "I/O OOM error");
-}
-#endif
-
-#ifndef SQLITE_OMIT_DEPRECATED
-/*
-** This is a convenience routine that makes sure that all thread-specific
-** data for this thread has been deallocated.
-**
-** SQLite no longer uses thread-specific data so this routine is now a
-** no-op.  It is retained for historical compatibility.
-*/
-SQLITE_API void tdsqlite3_thread_cleanup(void){
-}
-#endif
-
-/*
-** Return meta information about a specific column of a database table.
-** See comment in sqlite3.h (sqlite.h.in) for details.
-*/
-SQLITE_API int tdsqlite3_table_column_metadata(
-  tdsqlite3 *db,                /* Connection handle */
-  const char *zDbName,        /* Database name or NULL */
-  const char *zTableName,     /* Table name */
-  const char *zColumnName,    /* Column name */
-  char const **pzDataType,    /* OUTPUT: Declared data type */
-  char const **pzCollSeq,     /* OUTPUT: Collation sequence name */
-  int *pNotNull,              /* OUTPUT: True if NOT NULL constraint exists */
-  int *pPrimaryKey,           /* OUTPUT: True if column part of PK */
-  int *pAutoinc               /* OUTPUT: True if column is auto-increment */
-){
-  int rc;
-  char *zErrMsg = 0;
-  Table *pTab = 0;
-  Column *pCol = 0;
-  int iCol = 0;
-  char const *zDataType = 0;
-  char const *zCollSeq = 0;
-  int notnull = 0;
-  int primarykey = 0;
-  int autoinc = 0;
-
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) || zTableName==0 ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-
-  /* Ensure the database schema has been loaded */
-  tdsqlite3_mutex_enter(db->mutex);
-  tdsqlite3BtreeEnterAll(db);
-  rc = tdsqlite3Init(db, &zErrMsg);
-  if( SQLITE_OK!=rc ){
-    goto error_out;
-  }
-
-  /* Locate the table in question */
-  pTab = tdsqlite3FindTable(db, zTableName, zDbName);
-  if( !pTab || pTab->pSelect ){
-    pTab = 0;
-    goto error_out;
-  }
-
-  /* Find the column for which info is requested */
-  if( zColumnName==0 ){
-    /* Query for existance of table only */
-  }else{
-    for(iCol=0; iCol<pTab->nCol; iCol++){
-      pCol = &pTab->aCol[iCol];
-      if( 0==tdsqlite3StrICmp(pCol->zName, zColumnName) ){
-        break;
-      }
-    }
-    if( iCol==pTab->nCol ){
-      if( HasRowid(pTab) && tdsqlite3IsRowid(zColumnName) ){
-        iCol = pTab->iPKey;
-        pCol = iCol>=0 ? &pTab->aCol[iCol] : 0;
-      }else{
-        pTab = 0;
-        goto error_out;
-      }
-    }
-  }
-
-  /* The following block stores the meta information that will be returned
-  ** to the caller in local variables zDataType, zCollSeq, notnull, primarykey
-  ** and autoinc. At this point there are two possibilities:
-  ** 
-  **     1. The specified column name was rowid", "oid" or "_rowid_" 
-  **        and there is no explicitly declared IPK column. 
-  **
-  **     2. The table is not a view and the column name identified an 
-  **        explicitly declared column. Copy meta information from *pCol.
-  */ 
-  if( pCol ){
-    zDataType = tdsqlite3ColumnType(pCol,0);
-    zCollSeq = pCol->zColl;
-    notnull = pCol->notNull!=0;
-    primarykey  = (pCol->colFlags & COLFLAG_PRIMKEY)!=0;
-    autoinc = pTab->iPKey==iCol && (pTab->tabFlags & TF_Autoincrement)!=0;
-  }else{
-    zDataType = "INTEGER";
-    primarykey = 1;
-  }
-  if( !zCollSeq ){
-    zCollSeq = tdsqlite3StrBINARY;
-  }
-
-error_out:
-  tdsqlite3BtreeLeaveAll(db);
-
-  /* Whether the function call succeeded or failed, set the output parameters
-  ** to whatever their local counterparts contain. If an error did occur,
-  ** this has the effect of zeroing all output parameters.
-  */
-  if( pzDataType ) *pzDataType = zDataType;
-  if( pzCollSeq ) *pzCollSeq = zCollSeq;
-  if( pNotNull ) *pNotNull = notnull;
-  if( pPrimaryKey ) *pPrimaryKey = primarykey;
-  if( pAutoinc ) *pAutoinc = autoinc;
-
-  if( SQLITE_OK==rc && !pTab ){
-    tdsqlite3DbFree(db, zErrMsg);
-    zErrMsg = tdsqlite3MPrintf(db, "no such table column: %s.%s", zTableName,
-        zColumnName);
-    rc = SQLITE_ERROR;
-  }
-  tdsqlite3ErrorWithMsg(db, rc, (zErrMsg?"%s":0), zErrMsg);
-  tdsqlite3DbFree(db, zErrMsg);
-  rc = tdsqlite3ApiExit(db, rc);
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** Sleep for a little while.  Return the amount of time slept.
-*/
-SQLITE_API int tdsqlite3_sleep(int ms){
-  tdsqlite3_vfs *pVfs;
-  int rc;
-  pVfs = tdsqlite3_vfs_find(0);
-  if( pVfs==0 ) return 0;
-
-  /* This function works in milliseconds, but the underlying OsSleep() 
-  ** API uses microseconds. Hence the 1000's.
-  */
-  rc = (tdsqlite3OsSleep(pVfs, 1000*ms)/1000);
-  return rc;
-}
-
-/*
-** Enable or disable the extended result codes.
-*/
-SQLITE_API int tdsqlite3_extended_result_codes(tdsqlite3 *db, int onoff){
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  db->errMask = onoff ? 0xffffffff : 0xff;
-  tdsqlite3_mutex_leave(db->mutex);
-  return SQLITE_OK;
-}
-
-/*
-** Invoke the xFileControl method on a particular database.
-*/
-SQLITE_API int tdsqlite3_file_control(tdsqlite3 *db, const char *zDbName, int op, void *pArg){
-  int rc = SQLITE_ERROR;
-  Btree *pBtree;
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  pBtree = tdsqlite3DbNameToBtree(db, zDbName);
-  if( pBtree ){
-    Pager *pPager;
-    tdsqlite3_file *fd;
-    tdsqlite3BtreeEnter(pBtree);
-    pPager = tdsqlite3BtreePager(pBtree);
-    assert( pPager!=0 );
-    fd = tdsqlite3PagerFile(pPager);
-    assert( fd!=0 );
-    if( op==SQLITE_FCNTL_FILE_POINTER ){
-      *(tdsqlite3_file**)pArg = fd;
-      rc = SQLITE_OK;
-    }else if( op==SQLITE_FCNTL_VFS_POINTER ){
-      *(tdsqlite3_vfs**)pArg = tdsqlite3PagerVfs(pPager);
-      rc = SQLITE_OK;
-    }else if( op==SQLITE_FCNTL_JOURNAL_POINTER ){
-      *(tdsqlite3_file**)pArg = tdsqlite3PagerJrnlFile(pPager);
-      rc = SQLITE_OK;
-    }else if( op==SQLITE_FCNTL_DATA_VERSION ){
-      *(unsigned int*)pArg = tdsqlite3PagerDataVersion(pPager);
-      rc = SQLITE_OK;
-    }else{
-      rc = tdsqlite3OsFileControl(fd, op, pArg);
-    }
-    tdsqlite3BtreeLeave(pBtree);
-  }
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** Interface to the testing logic.
-*/
-SQLITE_API int tdsqlite3_test_control(int op, ...){
-  int rc = 0;
-#ifdef SQLITE_UNTESTABLE
-  UNUSED_PARAMETER(op);
-#else
-  va_list ap;
-  va_start(ap, op);
-  switch( op ){
-
-    /*
-    ** Save the current state of the PRNG.
-    */
-    case SQLITE_TESTCTRL_PRNG_SAVE: {
-      tdsqlite3PrngSaveState();
-      break;
-    }
-
-    /*
-    ** Restore the state of the PRNG to the last state saved using
-    ** PRNG_SAVE.  If PRNG_SAVE has never before been called, then
-    ** this verb acts like PRNG_RESET.
-    */
-    case SQLITE_TESTCTRL_PRNG_RESTORE: {
-      tdsqlite3PrngRestoreState();
-      break;
-    }
-
-    /*  tdsqlite3_test_control(SQLITE_TESTCTRL_PRNG_SEED, int x, tdsqlite3 *db);
-    **
-    ** Control the seed for the pseudo-random number generator (PRNG) that
-    ** is built into SQLite.  Cases:
-    **
-    **    x!=0 && db!=0       Seed the PRNG to the current value of the
-    **                        schema cookie in the main database for db, or
-    **                        x if the schema cookie is zero.  This case
-    **                        is convenient to use with database fuzzers
-    **                        as it allows the fuzzer some control over the
-    **                        the PRNG seed.
-    **
-    **    x!=0 && db==0       Seed the PRNG to the value of x.
-    **
-    **    x==0 && db==0       Revert to default behavior of using the
-    **                        xRandomness method on the primary VFS.
-    **
-    ** This test-control also resets the PRNG so that the new seed will
-    ** be used for the next call to tdsqlite3_randomness().
-    */
-#ifndef SQLITE_OMIT_WSD
-    case SQLITE_TESTCTRL_PRNG_SEED: {
-      int x = va_arg(ap, int);
-      int y;
-      tdsqlite3 *db = va_arg(ap, tdsqlite3*);
-      assert( db==0 || db->aDb[0].pSchema!=0 );
-      if( db && (y = db->aDb[0].pSchema->schema_cookie)!=0 ){ x = y; }
-      tdsqlite3Config.iPrngSeed = x;
-      tdsqlite3_randomness(0,0);
-      break;
-    }
-#endif
-
-    /*
-    **  tdsqlite3_test_control(BITVEC_TEST, size, program)
-    **
-    ** Run a test against a Bitvec object of size.  The program argument
-    ** is an array of integers that defines the test.  Return -1 on a
-    ** memory allocation error, 0 on success, or non-zero for an error.
-    ** See the tdsqlite3BitvecBuiltinTest() for additional information.
-    */
-    case SQLITE_TESTCTRL_BITVEC_TEST: {
-      int sz = va_arg(ap, int);
-      int *aProg = va_arg(ap, int*);
-      rc = tdsqlite3BitvecBuiltinTest(sz, aProg);
-      break;
-    }
-
-    /*
-    **  tdsqlite3_test_control(FAULT_INSTALL, xCallback)
-    **
-    ** Arrange to invoke xCallback() whenever tdsqlite3FaultSim() is called,
-    ** if xCallback is not NULL.
-    **
-    ** As a test of the fault simulator mechanism itself, tdsqlite3FaultSim(0)
-    ** is called immediately after installing the new callback and the return
-    ** value from tdsqlite3FaultSim(0) becomes the return from
-    ** tdsqlite3_test_control().
-    */
-    case SQLITE_TESTCTRL_FAULT_INSTALL: {
-      /* MSVC is picky about pulling func ptrs from va lists.
-      ** http://support.microsoft.com/kb/47961
-      ** tdsqlite3GlobalConfig.xTestCallback = va_arg(ap, int(*)(int));
-      */
-      typedef int(*TESTCALLBACKFUNC_t)(int);
-      tdsqlite3GlobalConfig.xTestCallback = va_arg(ap, TESTCALLBACKFUNC_t);
-      rc = tdsqlite3FaultSim(0);
-      break;
-    }
-
-    /*
-    **  tdsqlite3_test_control(BENIGN_MALLOC_HOOKS, xBegin, xEnd)
-    **
-    ** Register hooks to call to indicate which malloc() failures 
-    ** are benign.
-    */
-    case SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS: {
-      typedef void (*void_function)(void);
-      void_function xBenignBegin;
-      void_function xBenignEnd;
-      xBenignBegin = va_arg(ap, void_function);
-      xBenignEnd = va_arg(ap, void_function);
-      tdsqlite3BenignMallocHooks(xBenignBegin, xBenignEnd);
-      break;
-    }
-
-    /*
-    **  tdsqlite3_test_control(SQLITE_TESTCTRL_PENDING_BYTE, unsigned int X)
-    **
-    ** Set the PENDING byte to the value in the argument, if X>0.
-    ** Make no changes if X==0.  Return the value of the pending byte
-    ** as it existing before this routine was called.
-    **
-    ** IMPORTANT:  Changing the PENDING byte from 0x40000000 results in
-    ** an incompatible database file format.  Changing the PENDING byte
-    ** while any database connection is open results in undefined and
-    ** deleterious behavior.
-    */
-    case SQLITE_TESTCTRL_PENDING_BYTE: {
-      rc = PENDING_BYTE;
-#ifndef SQLITE_OMIT_WSD
-      {
-        unsigned int newVal = va_arg(ap, unsigned int);
-        if( newVal ) tdsqlite3PendingByte = newVal;
-      }
-#endif
-      break;
-    }
-
-    /*
-    **  tdsqlite3_test_control(SQLITE_TESTCTRL_ASSERT, int X)
-    **
-    ** This action provides a run-time test to see whether or not
-    ** assert() was enabled at compile-time.  If X is true and assert()
-    ** is enabled, then the return value is true.  If X is true and
-    ** assert() is disabled, then the return value is zero.  If X is
-    ** false and assert() is enabled, then the assertion fires and the
-    ** process aborts.  If X is false and assert() is disabled, then the
-    ** return value is zero.
-    */
-    case SQLITE_TESTCTRL_ASSERT: {
-      volatile int x = 0;
-      assert( /*side-effects-ok*/ (x = va_arg(ap,int))!=0 );
-      rc = x;
-      break;
-    }
-
-
-    /*
-    **  tdsqlite3_test_control(SQLITE_TESTCTRL_ALWAYS, int X)
-    **
-    ** This action provides a run-time test to see how the ALWAYS and
-    ** NEVER macros were defined at compile-time.
-    **
-    ** The return value is ALWAYS(X) if X is true, or 0 if X is false.
-    **
-    ** The recommended test is X==2.  If the return value is 2, that means
-    ** ALWAYS() and NEVER() are both no-op pass-through macros, which is the
-    ** default setting.  If the return value is 1, then ALWAYS() is either
-    ** hard-coded to true or else it asserts if its argument is false.
-    ** The first behavior (hard-coded to true) is the case if
-    ** SQLITE_TESTCTRL_ASSERT shows that assert() is disabled and the second
-    ** behavior (assert if the argument to ALWAYS() is false) is the case if
-    ** SQLITE_TESTCTRL_ASSERT shows that assert() is enabled.
-    **
-    ** The run-time test procedure might look something like this:
-    **
-    **    if( tdsqlite3_test_control(SQLITE_TESTCTRL_ALWAYS, 2)==2 ){
-    **      // ALWAYS() and NEVER() are no-op pass-through macros
-    **    }else if( tdsqlite3_test_control(SQLITE_TESTCTRL_ASSERT, 1) ){
-    **      // ALWAYS(x) asserts that x is true. NEVER(x) asserts x is false.
-    **    }else{
-    **      // ALWAYS(x) is a constant 1.  NEVER(x) is a constant 0.
-    **    }
-    */
-    case SQLITE_TESTCTRL_ALWAYS: {
-      int x = va_arg(ap,int);
-      rc = x ? ALWAYS(x) : 0;
-      break;
-    }
-
-    /*
-    **   tdsqlite3_test_control(SQLITE_TESTCTRL_BYTEORDER);
-    **
-    ** The integer returned reveals the byte-order of the computer on which
-    ** SQLite is running:
-    **
-    **       1     big-endian,    determined at run-time
-    **      10     little-endian, determined at run-time
-    **  432101     big-endian,    determined at compile-time
-    **  123410     little-endian, determined at compile-time
-    */ 
-    case SQLITE_TESTCTRL_BYTEORDER: {
-      rc = SQLITE_BYTEORDER*100 + SQLITE_LITTLEENDIAN*10 + SQLITE_BIGENDIAN;
-      break;
-    }
-
-    /*   tdsqlite3_test_control(SQLITE_TESTCTRL_RESERVE, tdsqlite3 *db, int N)
-    **
-    ** Set the nReserve size to N for the main database on the database
-    ** connection db.
-    */
-    case SQLITE_TESTCTRL_RESERVE: {
-      tdsqlite3 *db = va_arg(ap, tdsqlite3*);
-      int x = va_arg(ap,int);
-      tdsqlite3_mutex_enter(db->mutex);
-      tdsqlite3BtreeSetPageSize(db->aDb[0].pBt, 0, x, 0);
-      tdsqlite3_mutex_leave(db->mutex);
-      break;
-    }
-
-    /*  tdsqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, tdsqlite3 *db, int N)
-    **
-    ** Enable or disable various optimizations for testing purposes.  The 
-    ** argument N is a bitmask of optimizations to be disabled.  For normal
-    ** operation N should be 0.  The idea is that a test program (like the
-    ** SQL Logic Test or SLT test module) can run the same SQL multiple times
-    ** with various optimizations disabled to verify that the same answer
-    ** is obtained in every case.
-    */
-    case SQLITE_TESTCTRL_OPTIMIZATIONS: {
-      tdsqlite3 *db = va_arg(ap, tdsqlite3*);
-      db->dbOptFlags = (u16)(va_arg(ap, int) & 0xffff);
-      break;
-    }
-
-    /*   tdsqlite3_test_control(SQLITE_TESTCTRL_LOCALTIME_FAULT, int onoff);
-    **
-    ** If parameter onoff is non-zero, subsequent calls to localtime()
-    ** and its variants fail. If onoff is zero, undo this setting.
-    */
-    case SQLITE_TESTCTRL_LOCALTIME_FAULT: {
-      tdsqlite3GlobalConfig.bLocaltimeFault = va_arg(ap, int);
-      break;
-    }
-
-    /*   tdsqlite3_test_control(SQLITE_TESTCTRL_INTERNAL_FUNCTIONS, tdsqlite3*);
-    **
-    ** Toggle the ability to use internal functions on or off for
-    ** the database connection given in the argument.
-    */
-    case SQLITE_TESTCTRL_INTERNAL_FUNCTIONS: {
-      tdsqlite3 *db = va_arg(ap, tdsqlite3*);
-      db->mDbFlags ^= DBFLAG_InternalFunc;
-      break;
-    }
-
-    /*   tdsqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, int);
-    **
-    ** Set or clear a flag that indicates that the database file is always well-
-    ** formed and never corrupt.  This flag is clear by default, indicating that
-    ** database files might have arbitrary corruption.  Setting the flag during
-    ** testing causes certain assert() statements in the code to be activated
-    ** that demonstrat invariants on well-formed database files.
-    */
-    case SQLITE_TESTCTRL_NEVER_CORRUPT: {
-      tdsqlite3GlobalConfig.neverCorrupt = va_arg(ap, int);
-      break;
-    }
-
-    /*   tdsqlite3_test_control(SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS, int);
-    **
-    ** Set or clear a flag that causes SQLite to verify that type, name,
-    ** and tbl_name fields of the sqlite_master table.  This is normally
-    ** on, but it is sometimes useful to turn it off for testing.
-    */
-    case SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS: {
-      tdsqlite3GlobalConfig.bExtraSchemaChecks = va_arg(ap, int);
-      break;
-    }
-
-    /* Set the threshold at which OP_Once counters reset back to zero.
-    ** By default this is 0x7ffffffe (over 2 billion), but that value is
-    ** too big to test in a reasonable amount of time, so this control is
-    ** provided to set a small and easily reachable reset value.
-    */
-    case SQLITE_TESTCTRL_ONCE_RESET_THRESHOLD: {
-      tdsqlite3GlobalConfig.iOnceResetThreshold = va_arg(ap, int);
-      break;
-    }
-
-    /*   tdsqlite3_test_control(SQLITE_TESTCTRL_VDBE_COVERAGE, xCallback, ptr);
-    **
-    ** Set the VDBE coverage callback function to xCallback with context 
-    ** pointer ptr.
-    */
-    case SQLITE_TESTCTRL_VDBE_COVERAGE: {
-#ifdef SQLITE_VDBE_COVERAGE
-      typedef void (*branch_callback)(void*,unsigned int,
-                                      unsigned char,unsigned char);
-      tdsqlite3GlobalConfig.xVdbeBranch = va_arg(ap,branch_callback);
-      tdsqlite3GlobalConfig.pVdbeBranchArg = va_arg(ap,void*);
-#endif
-      break;
-    }
-
-    /*   tdsqlite3_test_control(SQLITE_TESTCTRL_SORTER_MMAP, db, nMax); */
-    case SQLITE_TESTCTRL_SORTER_MMAP: {
-      tdsqlite3 *db = va_arg(ap, tdsqlite3*);
-      db->nMaxSorterMmap = va_arg(ap, int);
-      break;
-    }
-
-    /*   tdsqlite3_test_control(SQLITE_TESTCTRL_ISINIT);
-    **
-    ** Return SQLITE_OK if SQLite has been initialized and SQLITE_ERROR if
-    ** not.
-    */
-    case SQLITE_TESTCTRL_ISINIT: {
-      if( tdsqlite3GlobalConfig.isInit==0 ) rc = SQLITE_ERROR;
-      break;
-    }
-
-    /*  tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, dbName, onOff, tnum);
-    **
-    ** This test control is used to create imposter tables.  "db" is a pointer
-    ** to the database connection.  dbName is the database name (ex: "main" or
-    ** "temp") which will receive the imposter.  "onOff" turns imposter mode on
-    ** or off.  "tnum" is the root page of the b-tree to which the imposter
-    ** table should connect.
-    **
-    ** Enable imposter mode only when the schema has already been parsed.  Then
-    ** run a single CREATE TABLE statement to construct the imposter table in
-    ** the parsed schema.  Then turn imposter mode back off again.
-    **
-    ** If onOff==0 and tnum>0 then reset the schema for all databases, causing
-    ** the schema to be reparsed the next time it is needed.  This has the
-    ** effect of erasing all imposter tables.
-    */
-    case SQLITE_TESTCTRL_IMPOSTER: {
-      tdsqlite3 *db = va_arg(ap, tdsqlite3*);
-      tdsqlite3_mutex_enter(db->mutex);
-      db->init.iDb = tdsqlite3FindDbName(db, va_arg(ap,const char*));
-      db->init.busy = db->init.imposterTable = va_arg(ap,int);
-      db->init.newTnum = va_arg(ap,int);
-      if( db->init.busy==0 && db->init.newTnum>0 ){
-        tdsqlite3ResetAllSchemasOfConnection(db);
-      }
-      tdsqlite3_mutex_leave(db->mutex);
-      break;
-    }
-
-#if defined(YYCOVERAGE)
-    /*  tdsqlite3_test_control(SQLITE_TESTCTRL_PARSER_COVERAGE, FILE *out)
-    **
-    ** This test control (only available when SQLite is compiled with
-    ** -DYYCOVERAGE) writes a report onto "out" that shows all
-    ** state/lookahead combinations in the parser state machine
-    ** which are never exercised.  If any state is missed, make the
-    ** return code SQLITE_ERROR.
-    */
-    case SQLITE_TESTCTRL_PARSER_COVERAGE: {
-      FILE *out = va_arg(ap, FILE*);
-      if( tdsqlite3ParserCoverage(out) ) rc = SQLITE_ERROR;
-      break;
-    }
-#endif /* defined(YYCOVERAGE) */
-
-    /*  tdsqlite3_test_control(SQLITE_TESTCTRL_RESULT_INTREAL, tdsqlite3_context*);
-    **
-    ** This test-control causes the most recent tdsqlite3_result_int64() value
-    ** to be interpreted as a MEM_IntReal instead of as an MEM_Int.  Normally,
-    ** MEM_IntReal values only arise during an INSERT operation of integer
-    ** values into a REAL column, so they can be challenging to test.  This
-    ** test-control enables us to write an intreal() SQL function that can
-    ** inject an intreal() value at arbitrary places in an SQL statement,
-    ** for testing purposes.
-    */
-    case SQLITE_TESTCTRL_RESULT_INTREAL: {
-      tdsqlite3_context *pCtx = va_arg(ap, tdsqlite3_context*);
-      tdsqlite3ResultIntReal(pCtx);
-      break;
-    }
-  }
-  va_end(ap);
-#endif /* SQLITE_UNTESTABLE */
-  return rc;
-}
-
-/*
-** This is a utility routine, useful to VFS implementations, that checks
-** to see if a database file was a URI that contained a specific query 
-** parameter, and if so obtains the value of the query parameter.
-**
-** The zFilename argument is the filename pointer passed into the xOpen()
-** method of a VFS implementation.  The zParam argument is the name of the
-** query parameter we seek.  This routine returns the value of the zParam
-** parameter if it exists.  If the parameter does not exist, this routine
-** returns a NULL pointer.
-*/
-SQLITE_API const char *tdsqlite3_uri_parameter(const char *zFilename, const char *zParam){
-  if( zFilename==0 || zParam==0 ) return 0;
-  zFilename += tdsqlite3Strlen30(zFilename) + 1;
-  while( zFilename[0] ){
-    int x = strcmp(zFilename, zParam);
-    zFilename += tdsqlite3Strlen30(zFilename) + 1;
-    if( x==0 ) return zFilename;
-    zFilename += tdsqlite3Strlen30(zFilename) + 1;
-  }
-  return 0;
-}
-
-/*
-** Return a pointer to the name of Nth query parameter of the filename.
-*/
-SQLITE_API const char *tdsqlite3_uri_key(const char *zFilename, int N){
-  if( zFilename==0 || N<0 ) return 0;
-  zFilename += tdsqlite3Strlen30(zFilename) + 1;
-  while( zFilename[0] && (N--)>0 ){
-    zFilename += tdsqlite3Strlen30(zFilename) + 1;
-    zFilename += tdsqlite3Strlen30(zFilename) + 1;
-  }
-  return zFilename[0] ? zFilename : 0;
-}
-
-/*
-** Return a boolean value for a query parameter.
-*/
-SQLITE_API int tdsqlite3_uri_boolean(const char *zFilename, const char *zParam, int bDflt){
-  const char *z = tdsqlite3_uri_parameter(zFilename, zParam);
-  bDflt = bDflt!=0;
-  return z ? tdsqlite3GetBoolean(z, bDflt) : bDflt;
-}
-
-/*
-** Return a 64-bit integer value for a query parameter.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_uri_int64(
-  const char *zFilename,    /* Filename as passed to xOpen */
-  const char *zParam,       /* URI parameter sought */
-  tdsqlite3_int64 bDflt       /* return if parameter is missing */
-){
-  const char *z = tdsqlite3_uri_parameter(zFilename, zParam);
-  tdsqlite3_int64 v;
-  if( z && tdsqlite3DecOrHexToI64(z, &v)==0 ){
-    bDflt = v;
-  }
-  return bDflt;
-}
-
-/*
-** The Pager stores the Journal filename, WAL filename, and Database filename
-** consecutively in memory, in that order, with prefixes \000\001\000,
-** \002\000, and \003\000, in that order.  Thus the three names look like query
-** parameters if you start at the first prefix.
-**
-** This routine backs up a filename to the start of the first prefix.
-**
-** This only works if the filenamed passed in was obtained from the Pager.
-*/
-static const char *startOfNameList(const char *zName){
-  while( zName[0]!='\001' || zName[1]!=0 ){
-    zName -= 3;
-    while( zName[0]!='\000' ){ zName--; }
-    zName++;
-  }
-  return zName-1;
-}
-
-/*
-** Translate a filename that was handed to a VFS routine into the corresponding
-** database, journal, or WAL file.
-**
-** It is an error to pass this routine a filename string that was not
-** passed into the VFS from the SQLite core.  Doing so is similar to
-** passing free() a pointer that was not obtained from malloc() - it is
-** an error that we cannot easily detect but that will likely cause memory
-** corruption.
-*/
-SQLITE_API const char *tdsqlite3_filename_database(const char *zFilename){
-  return tdsqlite3_uri_parameter(zFilename - 3, "\003");
-}
-SQLITE_API const char *tdsqlite3_filename_journal(const char *zFilename){
-  const char *z = tdsqlite3_uri_parameter(startOfNameList(zFilename), "\001");
-  return ALWAYS(z) && z[0] ? z : 0;
-}
-SQLITE_API const char *tdsqlite3_filename_wal(const char *zFilename){
-  return tdsqlite3_uri_parameter(startOfNameList(zFilename), "\002");
-}
-
-/*
-** Return the Btree pointer identified by zDbName.  Return NULL if not found.
-*/
-SQLITE_PRIVATE Btree *tdsqlite3DbNameToBtree(tdsqlite3 *db, const char *zDbName){
-  int iDb = zDbName ? tdsqlite3FindDbName(db, zDbName) : 0;
-  return iDb<0 ? 0 : db->aDb[iDb].pBt;
-}
-
-/*
-** Return the filename of the database associated with a database
-** connection.
-*/
-SQLITE_API const char *tdsqlite3_db_filename(tdsqlite3 *db, const char *zDbName){
-  Btree *pBt;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-  pBt = tdsqlite3DbNameToBtree(db, zDbName);
-  return pBt ? tdsqlite3BtreeGetFilename(pBt) : 0;
-}
-
-/*
-** Return 1 if database is read-only or 0 if read/write.  Return -1 if
-** no such database exists.
-*/
-SQLITE_API int tdsqlite3_db_readonly(tdsqlite3 *db, const char *zDbName){
-  Btree *pBt;
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    (void)SQLITE_MISUSE_BKPT;
-    return -1;
-  }
-#endif
-  pBt = tdsqlite3DbNameToBtree(db, zDbName);
-  return pBt ? tdsqlite3BtreeIsReadonly(pBt) : -1;
-}
-
-#ifdef SQLITE_ENABLE_SNAPSHOT
-/*
-** Obtain a snapshot handle for the snapshot of database zDb currently 
-** being read by handle db.
-*/
-SQLITE_API int tdsqlite3_snapshot_get(
-  tdsqlite3 *db, 
-  const char *zDb,
-  tdsqlite3_snapshot **ppSnapshot
-){
-  int rc = SQLITE_ERROR;
-#ifndef SQLITE_OMIT_WAL
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-
-  if( db->autoCommit==0 ){
-    int iDb = tdsqlite3FindDbName(db, zDb);
-    if( iDb==0 || iDb>1 ){
-      Btree *pBt = db->aDb[iDb].pBt;
-      if( 0==tdsqlite3BtreeIsInTrans(pBt) ){
-        rc = tdsqlite3BtreeBeginTrans(pBt, 0, 0);
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3PagerSnapshotGet(tdsqlite3BtreePager(pBt), ppSnapshot);
-        }
-      }
-    }
-  }
-
-  tdsqlite3_mutex_leave(db->mutex);
-#endif   /* SQLITE_OMIT_WAL */
-  return rc;
-}
-
-/*
-** Open a read-transaction on the snapshot idendified by pSnapshot.
-*/
-SQLITE_API int tdsqlite3_snapshot_open(
-  tdsqlite3 *db, 
-  const char *zDb, 
-  tdsqlite3_snapshot *pSnapshot
-){
-  int rc = SQLITE_ERROR;
-#ifndef SQLITE_OMIT_WAL
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-  tdsqlite3_mutex_enter(db->mutex);
-  if( db->autoCommit==0 ){
-    int iDb;
-    iDb = tdsqlite3FindDbName(db, zDb);
-    if( iDb==0 || iDb>1 ){
-      Btree *pBt = db->aDb[iDb].pBt;
-      if( tdsqlite3BtreeIsInTrans(pBt)==0 ){
-        Pager *pPager = tdsqlite3BtreePager(pBt);
-        int bUnlock = 0;
-        if( tdsqlite3BtreeIsInReadTrans(pBt) ){
-          if( db->nVdbeActive==0 ){
-            rc = tdsqlite3PagerSnapshotCheck(pPager, pSnapshot);
-            if( rc==SQLITE_OK ){
-              bUnlock = 1;
-              rc = tdsqlite3BtreeCommit(pBt);
-            }
-          }
-        }else{
-          rc = SQLITE_OK;
-        }
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3PagerSnapshotOpen(pPager, pSnapshot);
-        }
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3BtreeBeginTrans(pBt, 0, 0);
-          tdsqlite3PagerSnapshotOpen(pPager, 0);
-        }
-        if( bUnlock ){
-          tdsqlite3PagerSnapshotUnlock(pPager);
-        }
-      }
-    }
-  }
-
-  tdsqlite3_mutex_leave(db->mutex);
-#endif   /* SQLITE_OMIT_WAL */
-  return rc;
-}
-
-/*
-** Recover as many snapshots as possible from the wal file associated with
-** schema zDb of database db.
-*/
-SQLITE_API int tdsqlite3_snapshot_recover(tdsqlite3 *db, const char *zDb){
-  int rc = SQLITE_ERROR;
-  int iDb;
-#ifndef SQLITE_OMIT_WAL
-
-#ifdef SQLITE_ENABLE_API_ARMOR
-  if( !tdsqlite3SafetyCheckOk(db) ){
-    return SQLITE_MISUSE_BKPT;
-  }
-#endif
-
-  tdsqlite3_mutex_enter(db->mutex);
-  iDb = tdsqlite3FindDbName(db, zDb);
-  if( iDb==0 || iDb>1 ){
-    Btree *pBt = db->aDb[iDb].pBt;
-    if( 0==tdsqlite3BtreeIsInReadTrans(pBt) ){
-      rc = tdsqlite3BtreeBeginTrans(pBt, 0, 0);
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3PagerSnapshotRecover(tdsqlite3BtreePager(pBt));
-        tdsqlite3BtreeCommit(pBt);
-      }
-    }
-  }
-  tdsqlite3_mutex_leave(db->mutex);
-#endif   /* SQLITE_OMIT_WAL */
-  return rc;
-}
-
-/*
-** Free a snapshot handle obtained from tdsqlite3_snapshot_get().
-*/
-SQLITE_API void tdsqlite3_snapshot_free(tdsqlite3_snapshot *pSnapshot){
-  tdsqlite3_free(pSnapshot);
-}
-#endif /* SQLITE_ENABLE_SNAPSHOT */
-
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-/*
-** Given the name of a compile-time option, return true if that option
-** was used and false if not.
-**
-** The name can optionally begin with "SQLITE_" but the "SQLITE_" prefix
-** is not required for a match.
-*/
-SQLITE_API int tdsqlite3_compileoption_used(const char *zOptName){
-  int i, n;
-  int nOpt;
-  const char **azCompileOpt;
- 
-#if SQLITE_ENABLE_API_ARMOR
-  if( zOptName==0 ){
-    (void)SQLITE_MISUSE_BKPT;
-    return 0;
-  }
-#endif
-
-  azCompileOpt = tdsqlite3CompileOptions(&nOpt);
-
-  if( tdsqlite3StrNICmp(zOptName, "SQLITE_", 7)==0 ) zOptName += 7;
-  n = tdsqlite3Strlen30(zOptName);
-
-  /* Since nOpt is normally in single digits, a linear search is 
-  ** adequate. No need for a binary search. */
-  for(i=0; i<nOpt; i++){
-    if( tdsqlite3StrNICmp(zOptName, azCompileOpt[i], n)==0
-     && tdsqlite3IsIdChar((unsigned char)azCompileOpt[i][n])==0
-    ){
-      return 1;
-    }
-  }
-  return 0;
-}
-
-/*
-** Return the N-th compile-time option string.  If N is out of range,
-** return a NULL pointer.
-*/
-SQLITE_API const char *tdsqlite3_compileoption_get(int N){
-  int nOpt;
-  const char **azCompileOpt;
-  azCompileOpt = tdsqlite3CompileOptions(&nOpt);
-  if( N>=0 && N<nOpt ){
-    return azCompileOpt[N];
-  }
-  return 0;
-}
-#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
-
-/************** End of main.c ************************************************/
-/************** Begin file notify.c ******************************************/
-/*
-** 2009 March 3
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains the implementation of the tdsqlite3_unlock_notify()
-** API method and its associated functionality.
-*/
-/* #include "sqliteInt.h" */
-/* #include "btreeInt.h" */
-
-/* Omit this entire file if SQLITE_ENABLE_UNLOCK_NOTIFY is not defined. */
-#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
-
-/*
-** Public interfaces:
-**
-**   tdsqlite3ConnectionBlocked()
-**   tdsqlite3ConnectionUnlocked()
-**   tdsqlite3ConnectionClosed()
-**   tdsqlite3_unlock_notify()
-*/
-
-#define assertMutexHeld() \
-  assert( tdsqlite3_mutex_held(tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER)) )
-
-/*
-** Head of a linked list of all tdsqlite3 objects created by this process
-** for which either sqlite3.pBlockingConnection or sqlite3.pUnlockConnection
-** is not NULL. This variable may only accessed while the STATIC_MASTER
-** mutex is held.
-*/
-static tdsqlite3 *SQLITE_WSD tdsqlite3BlockedList = 0;
-
-#ifndef NDEBUG
-/*
-** This function is a complex assert() that verifies the following 
-** properties of the blocked connections list:
-**
-**   1) Each entry in the list has a non-NULL value for either 
-**      pUnlockConnection or pBlockingConnection, or both.
-**
-**   2) All entries in the list that share a common value for 
-**      xUnlockNotify are grouped together.
-**
-**   3) If the argument db is not NULL, then none of the entries in the
-**      blocked connections list have pUnlockConnection or pBlockingConnection
-**      set to db. This is used when closing connection db.
-*/
-static void checkListProperties(tdsqlite3 *db){
-  tdsqlite3 *p;
-  for(p=tdsqlite3BlockedList; p; p=p->pNextBlocked){
-    int seen = 0;
-    tdsqlite3 *p2;
-
-    /* Verify property (1) */
-    assert( p->pUnlockConnection || p->pBlockingConnection );
-
-    /* Verify property (2) */
-    for(p2=tdsqlite3BlockedList; p2!=p; p2=p2->pNextBlocked){
-      if( p2->xUnlockNotify==p->xUnlockNotify ) seen = 1;
-      assert( p2->xUnlockNotify==p->xUnlockNotify || !seen );
-      assert( db==0 || p->pUnlockConnection!=db );
-      assert( db==0 || p->pBlockingConnection!=db );
-    }
-  }
-}
-#else
-# define checkListProperties(x)
-#endif
-
-/*
-** Remove connection db from the blocked connections list. If connection
-** db is not currently a part of the list, this function is a no-op.
-*/
-static void removeFromBlockedList(tdsqlite3 *db){
-  tdsqlite3 **pp;
-  assertMutexHeld();
-  for(pp=&tdsqlite3BlockedList; *pp; pp = &(*pp)->pNextBlocked){
-    if( *pp==db ){
-      *pp = (*pp)->pNextBlocked;
-      break;
-    }
-  }
-}
-
-/*
-** Add connection db to the blocked connections list. It is assumed
-** that it is not already a part of the list.
-*/
-static void addToBlockedList(tdsqlite3 *db){
-  tdsqlite3 **pp;
-  assertMutexHeld();
-  for(
-    pp=&tdsqlite3BlockedList; 
-    *pp && (*pp)->xUnlockNotify!=db->xUnlockNotify; 
-    pp=&(*pp)->pNextBlocked
-  );
-  db->pNextBlocked = *pp;
-  *pp = db;
-}
-
-/*
-** Obtain the STATIC_MASTER mutex.
-*/
-static void enterMutex(void){
-  tdsqlite3_mutex_enter(tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER));
-  checkListProperties(0);
-}
-
-/*
-** Release the STATIC_MASTER mutex.
-*/
-static void leaveMutex(void){
-  assertMutexHeld();
-  checkListProperties(0);
-  tdsqlite3_mutex_leave(tdsqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER));
-}
-
-/*
-** Register an unlock-notify callback.
-**
-** This is called after connection "db" has attempted some operation
-** but has received an SQLITE_LOCKED error because another connection
-** (call it pOther) in the same process was busy using the same shared
-** cache.  pOther is found by looking at db->pBlockingConnection.
-**
-** If there is no blocking connection, the callback is invoked immediately,
-** before this routine returns.
-**
-** If pOther is already blocked on db, then report SQLITE_LOCKED, to indicate
-** a deadlock.
-**
-** Otherwise, make arrangements to invoke xNotify when pOther drops
-** its locks.
-**
-** Each call to this routine overrides any prior callbacks registered
-** on the same "db".  If xNotify==0 then any prior callbacks are immediately
-** cancelled.
-*/
-SQLITE_API int tdsqlite3_unlock_notify(
-  tdsqlite3 *db,
-  void (*xNotify)(void **, int),
-  void *pArg
-){
-  int rc = SQLITE_OK;
-
-  tdsqlite3_mutex_enter(db->mutex);
-  enterMutex();
-
-  if( xNotify==0 ){
-    removeFromBlockedList(db);
-    db->pBlockingConnection = 0;
-    db->pUnlockConnection = 0;
-    db->xUnlockNotify = 0;
-    db->pUnlockArg = 0;
-  }else if( 0==db->pBlockingConnection ){
-    /* The blocking transaction has been concluded. Or there never was a 
-    ** blocking transaction. In either case, invoke the notify callback
-    ** immediately. 
-    */
-    xNotify(&pArg, 1);
-  }else{
-    tdsqlite3 *p;
-
-    for(p=db->pBlockingConnection; p && p!=db; p=p->pUnlockConnection){}
-    if( p ){
-      rc = SQLITE_LOCKED;              /* Deadlock detected. */
-    }else{
-      db->pUnlockConnection = db->pBlockingConnection;
-      db->xUnlockNotify = xNotify;
-      db->pUnlockArg = pArg;
-      removeFromBlockedList(db);
-      addToBlockedList(db);
-    }
-  }
-
-  leaveMutex();
-  assert( !db->mallocFailed );
-  tdsqlite3ErrorWithMsg(db, rc, (rc?"database is deadlocked":0));
-  tdsqlite3_mutex_leave(db->mutex);
-  return rc;
-}
-
-/*
-** This function is called while stepping or preparing a statement 
-** associated with connection db. The operation will return SQLITE_LOCKED
-** to the user because it requires a lock that will not be available
-** until connection pBlocker concludes its current transaction.
-*/
-SQLITE_PRIVATE void tdsqlite3ConnectionBlocked(tdsqlite3 *db, tdsqlite3 *pBlocker){
-  enterMutex();
-  if( db->pBlockingConnection==0 && db->pUnlockConnection==0 ){
-    addToBlockedList(db);
-  }
-  db->pBlockingConnection = pBlocker;
-  leaveMutex();
-}
-
-/*
-** This function is called when
-** the transaction opened by database db has just finished. Locks held 
-** by database connection db have been released.
-**
-** This function loops through each entry in the blocked connections
-** list and does the following:
-**
-**   1) If the sqlite3.pBlockingConnection member of a list entry is
-**      set to db, then set pBlockingConnection=0.
-**
-**   2) If the sqlite3.pUnlockConnection member of a list entry is
-**      set to db, then invoke the configured unlock-notify callback and
-**      set pUnlockConnection=0.
-**
-**   3) If the two steps above mean that pBlockingConnection==0 and
-**      pUnlockConnection==0, remove the entry from the blocked connections
-**      list.
-*/
-SQLITE_PRIVATE void tdsqlite3ConnectionUnlocked(tdsqlite3 *db){
-  void (*xUnlockNotify)(void **, int) = 0; /* Unlock-notify cb to invoke */
-  int nArg = 0;                            /* Number of entries in aArg[] */
-  tdsqlite3 **pp;                            /* Iterator variable */
-  void **aArg;               /* Arguments to the unlock callback */
-  void **aDyn = 0;           /* Dynamically allocated space for aArg[] */
-  void *aStatic[16];         /* Starter space for aArg[].  No malloc required */
-
-  aArg = aStatic;
-  enterMutex();         /* Enter STATIC_MASTER mutex */
-
-  /* This loop runs once for each entry in the blocked-connections list. */
-  for(pp=&tdsqlite3BlockedList; *pp; /* no-op */ ){
-    tdsqlite3 *p = *pp;
-
-    /* Step 1. */
-    if( p->pBlockingConnection==db ){
-      p->pBlockingConnection = 0;
-    }
-
-    /* Step 2. */
-    if( p->pUnlockConnection==db ){
-      assert( p->xUnlockNotify );
-      if( p->xUnlockNotify!=xUnlockNotify && nArg!=0 ){
-        xUnlockNotify(aArg, nArg);
-        nArg = 0;
-      }
-
-      tdsqlite3BeginBenignMalloc();
-      assert( aArg==aDyn || (aDyn==0 && aArg==aStatic) );
-      assert( nArg<=(int)ArraySize(aStatic) || aArg==aDyn );
-      if( (!aDyn && nArg==(int)ArraySize(aStatic))
-       || (aDyn && nArg==(int)(tdsqlite3MallocSize(aDyn)/sizeof(void*)))
-      ){
-        /* The aArg[] array needs to grow. */
-        void **pNew = (void **)tdsqlite3Malloc(nArg*sizeof(void *)*2);
-        if( pNew ){
-          memcpy(pNew, aArg, nArg*sizeof(void *));
-          tdsqlite3_free(aDyn);
-          aDyn = aArg = pNew;
-        }else{
-          /* This occurs when the array of context pointers that need to
-          ** be passed to the unlock-notify callback is larger than the
-          ** aStatic[] array allocated on the stack and the attempt to 
-          ** allocate a larger array from the heap has failed.
-          **
-          ** This is a difficult situation to handle. Returning an error
-          ** code to the caller is insufficient, as even if an error code
-          ** is returned the transaction on connection db will still be
-          ** closed and the unlock-notify callbacks on blocked connections
-          ** will go unissued. This might cause the application to wait
-          ** indefinitely for an unlock-notify callback that will never 
-          ** arrive.
-          **
-          ** Instead, invoke the unlock-notify callback with the context
-          ** array already accumulated. We can then clear the array and
-          ** begin accumulating any further context pointers without 
-          ** requiring any dynamic allocation. This is sub-optimal because
-          ** it means that instead of one callback with a large array of
-          ** context pointers the application will receive two or more
-          ** callbacks with smaller arrays of context pointers, which will
-          ** reduce the applications ability to prioritize multiple 
-          ** connections. But it is the best that can be done under the
-          ** circumstances.
-          */
-          xUnlockNotify(aArg, nArg);
-          nArg = 0;
-        }
-      }
-      tdsqlite3EndBenignMalloc();
-
-      aArg[nArg++] = p->pUnlockArg;
-      xUnlockNotify = p->xUnlockNotify;
-      p->pUnlockConnection = 0;
-      p->xUnlockNotify = 0;
-      p->pUnlockArg = 0;
-    }
-
-    /* Step 3. */
-    if( p->pBlockingConnection==0 && p->pUnlockConnection==0 ){
-      /* Remove connection p from the blocked connections list. */
-      *pp = p->pNextBlocked;
-      p->pNextBlocked = 0;
-    }else{
-      pp = &p->pNextBlocked;
-    }
-  }
-
-  if( nArg!=0 ){
-    xUnlockNotify(aArg, nArg);
-  }
-  tdsqlite3_free(aDyn);
-  leaveMutex();         /* Leave STATIC_MASTER mutex */
-}
-
-/*
-** This is called when the database connection passed as an argument is 
-** being closed. The connection is removed from the blocked list.
-*/
-SQLITE_PRIVATE void tdsqlite3ConnectionClosed(tdsqlite3 *db){
-  tdsqlite3ConnectionUnlocked(db);
-  enterMutex();
-  removeFromBlockedList(db);
-  checkListProperties(db);
-  leaveMutex();
-}
-#endif
-
-/************** End of notify.c **********************************************/
-/************** Begin file fts3.c ********************************************/
-/*
-** 2006 Oct 10
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This is an SQLite module implementing full-text search.
-*/
-
-/*
-** The code in this file is only compiled if:
-**
-**     * The FTS3 module is being built as an extension
-**       (in which case SQLITE_CORE is not defined), or
-**
-**     * The FTS3 module is being built into the core of
-**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
-*/
-
-/* The full-text index is stored in a series of b+tree (-like)
-** structures called segments which map terms to doclists.  The
-** structures are like b+trees in layout, but are constructed from the
-** bottom up in optimal fashion and are not updatable.  Since trees
-** are built from the bottom up, things will be described from the
-** bottom up.
-**
-**
-**** Varints ****
-** The basic unit of encoding is a variable-length integer called a
-** varint.  We encode variable-length integers in little-endian order
-** using seven bits * per byte as follows:
-**
-** KEY:
-**         A = 0xxxxxxx    7 bits of data and one flag bit
-**         B = 1xxxxxxx    7 bits of data and one flag bit
-**
-**  7 bits - A
-** 14 bits - BA
-** 21 bits - BBA
-** and so on.
-**
-** This is similar in concept to how sqlite encodes "varints" but
-** the encoding is not the same.  SQLite varints are big-endian
-** are are limited to 9 bytes in length whereas FTS3 varints are
-** little-endian and can be up to 10 bytes in length (in theory).
-**
-** Example encodings:
-**
-**     1:    0x01
-**   127:    0x7f
-**   128:    0x81 0x00
-**
-**
-**** Document lists ****
-** A doclist (document list) holds a docid-sorted list of hits for a
-** given term.  Doclists hold docids and associated token positions.
-** A docid is the unique integer identifier for a single document.
-** A position is the index of a word within the document.  The first 
-** word of the document has a position of 0.
-**
-** FTS3 used to optionally store character offsets using a compile-time
-** option.  But that functionality is no longer supported.
-**
-** A doclist is stored like this:
-**
-** array {
-**   varint docid;          (delta from previous doclist)
-**   array {                (position list for column 0)
-**     varint position;     (2 more than the delta from previous position)
-**   }
-**   array {
-**     varint POS_COLUMN;   (marks start of position list for new column)
-**     varint column;       (index of new column)
-**     array {
-**       varint position;   (2 more than the delta from previous position)
-**     }
-**   }
-**   varint POS_END;        (marks end of positions for this document.
-** }
-**
-** Here, array { X } means zero or more occurrences of X, adjacent in
-** memory.  A "position" is an index of a token in the token stream
-** generated by the tokenizer. Note that POS_END and POS_COLUMN occur 
-** in the same logical place as the position element, and act as sentinals
-** ending a position list array.  POS_END is 0.  POS_COLUMN is 1.
-** The positions numbers are not stored literally but rather as two more
-** than the difference from the prior position, or the just the position plus
-** 2 for the first position.  Example:
-**
-**   label:       A B C D E  F  G H   I  J K
-**   value:     123 5 9 1 1 14 35 0 234 72 0
-**
-** The 123 value is the first docid.  For column zero in this document
-** there are two matches at positions 3 and 10 (5-2 and 9-2+3).  The 1
-** at D signals the start of a new column; the 1 at E indicates that the
-** new column is column number 1.  There are two positions at 12 and 45
-** (14-2 and 35-2+12).  The 0 at H indicate the end-of-document.  The
-** 234 at I is the delta to next docid (357).  It has one position 70
-** (72-2) and then terminates with the 0 at K.
-**
-** A "position-list" is the list of positions for multiple columns for
-** a single docid.  A "column-list" is the set of positions for a single
-** column.  Hence, a position-list consists of one or more column-lists,
-** a document record consists of a docid followed by a position-list and
-** a doclist consists of one or more document records.
-**
-** A bare doclist omits the position information, becoming an 
-** array of varint-encoded docids.
-**
-**** Segment leaf nodes ****
-** Segment leaf nodes store terms and doclists, ordered by term.  Leaf
-** nodes are written using LeafWriter, and read using LeafReader (to
-** iterate through a single leaf node's data) and LeavesReader (to
-** iterate through a segment's entire leaf layer).  Leaf nodes have
-** the format:
-**
-** varint iHeight;             (height from leaf level, always 0)
-** varint nTerm;               (length of first term)
-** char pTerm[nTerm];          (content of first term)
-** varint nDoclist;            (length of term's associated doclist)
-** char pDoclist[nDoclist];    (content of doclist)
-** array {
-**                             (further terms are delta-encoded)
-**   varint nPrefix;           (length of prefix shared with previous term)
-**   varint nSuffix;           (length of unshared suffix)
-**   char pTermSuffix[nSuffix];(unshared suffix of next term)
-**   varint nDoclist;          (length of term's associated doclist)
-**   char pDoclist[nDoclist];  (content of doclist)
-** }
-**
-** Here, array { X } means zero or more occurrences of X, adjacent in
-** memory.
-**
-** Leaf nodes are broken into blocks which are stored contiguously in
-** the %_segments table in sorted order.  This means that when the end
-** of a node is reached, the next term is in the node with the next
-** greater node id.
-**
-** New data is spilled to a new leaf node when the current node
-** exceeds LEAF_MAX bytes (default 2048).  New data which itself is
-** larger than STANDALONE_MIN (default 1024) is placed in a standalone
-** node (a leaf node with a single term and doclist).  The goal of
-** these settings is to pack together groups of small doclists while
-** making it efficient to directly access large doclists.  The
-** assumption is that large doclists represent terms which are more
-** likely to be query targets.
-**
-** TODO(shess) It may be useful for blocking decisions to be more
-** dynamic.  For instance, it may make more sense to have a 2.5k leaf
-** node rather than splitting into 2k and .5k nodes.  My intuition is
-** that this might extend through 2x or 4x the pagesize.
-**
-**
-**** Segment interior nodes ****
-** Segment interior nodes store blockids for subtree nodes and terms
-** to describe what data is stored by the each subtree.  Interior
-** nodes are written using InteriorWriter, and read using
-** InteriorReader.  InteriorWriters are created as needed when
-** SegmentWriter creates new leaf nodes, or when an interior node
-** itself grows too big and must be split.  The format of interior
-** nodes:
-**
-** varint iHeight;           (height from leaf level, always >0)
-** varint iBlockid;          (block id of node's leftmost subtree)
-** optional {
-**   varint nTerm;           (length of first term)
-**   char pTerm[nTerm];      (content of first term)
-**   array {
-**                                (further terms are delta-encoded)
-**     varint nPrefix;            (length of shared prefix with previous term)
-**     varint nSuffix;            (length of unshared suffix)
-**     char pTermSuffix[nSuffix]; (unshared suffix of next term)
-**   }
-** }
-**
-** Here, optional { X } means an optional element, while array { X }
-** means zero or more occurrences of X, adjacent in memory.
-**
-** An interior node encodes n terms separating n+1 subtrees.  The
-** subtree blocks are contiguous, so only the first subtree's blockid
-** is encoded.  The subtree at iBlockid will contain all terms less
-** than the first term encoded (or all terms if no term is encoded).
-** Otherwise, for terms greater than or equal to pTerm[i] but less
-** than pTerm[i+1], the subtree for that term will be rooted at
-** iBlockid+i.  Interior nodes only store enough term data to
-** distinguish adjacent children (if the rightmost term of the left
-** child is "something", and the leftmost term of the right child is
-** "wicked", only "w" is stored).
-**
-** New data is spilled to a new interior node at the same height when
-** the current node exceeds INTERIOR_MAX bytes (default 2048).
-** INTERIOR_MIN_TERMS (default 7) keeps large terms from monopolizing
-** interior nodes and making the tree too skinny.  The interior nodes
-** at a given height are naturally tracked by interior nodes at
-** height+1, and so on.
-**
-**
-**** Segment directory ****
-** The segment directory in table %_segdir stores meta-information for
-** merging and deleting segments, and also the root node of the
-** segment's tree.
-**
-** The root node is the top node of the segment's tree after encoding
-** the entire segment, restricted to ROOT_MAX bytes (default 1024).
-** This could be either a leaf node or an interior node.  If the top
-** node requires more than ROOT_MAX bytes, it is flushed to %_segments
-** and a new root interior node is generated (which should always fit
-** within ROOT_MAX because it only needs space for 2 varints, the
-** height and the blockid of the previous root).
-**
-** The meta-information in the segment directory is:
-**   level               - segment level (see below)
-**   idx                 - index within level
-**                       - (level,idx uniquely identify a segment)
-**   start_block         - first leaf node
-**   leaves_end_block    - last leaf node
-**   end_block           - last block (including interior nodes)
-**   root                - contents of root node
-**
-** If the root node is a leaf node, then start_block,
-** leaves_end_block, and end_block are all 0.
-**
-**
-**** Segment merging ****
-** To amortize update costs, segments are grouped into levels and
-** merged in batches.  Each increase in level represents exponentially
-** more documents.
-**
-** New documents (actually, document updates) are tokenized and
-** written individually (using LeafWriter) to a level 0 segment, with
-** incrementing idx.  When idx reaches MERGE_COUNT (default 16), all
-** level 0 segments are merged into a single level 1 segment.  Level 1
-** is populated like level 0, and eventually MERGE_COUNT level 1
-** segments are merged to a single level 2 segment (representing
-** MERGE_COUNT^2 updates), and so on.
-**
-** A segment merge traverses all segments at a given level in
-** parallel, performing a straightforward sorted merge.  Since segment
-** leaf nodes are written in to the %_segments table in order, this
-** merge traverses the underlying sqlite disk structures efficiently.
-** After the merge, all segment blocks from the merged level are
-** deleted.
-**
-** MERGE_COUNT controls how often we merge segments.  16 seems to be
-** somewhat of a sweet spot for insertion performance.  32 and 64 show
-** very similar performance numbers to 16 on insertion, though they're
-** a tiny bit slower (perhaps due to more overhead in merge-time
-** sorting).  8 is about 20% slower than 16, 4 about 50% slower than
-** 16, 2 about 66% slower than 16.
-**
-** At query time, high MERGE_COUNT increases the number of segments
-** which need to be scanned and merged.  For instance, with 100k docs
-** inserted:
-**
-**    MERGE_COUNT   segments
-**       16           25
-**        8           12
-**        4           10
-**        2            6
-**
-** This appears to have only a moderate impact on queries for very
-** frequent terms (which are somewhat dominated by segment merge
-** costs), and infrequent and non-existent terms still seem to be fast
-** even with many segments.
-**
-** TODO(shess) That said, it would be nice to have a better query-side
-** argument for MERGE_COUNT of 16.  Also, it is possible/likely that
-** optimizations to things like doclist merging will swing the sweet
-** spot around.
-**
-**
-**
-**** Handling of deletions and updates ****
-** Since we're using a segmented structure, with no docid-oriented
-** index into the term index, we clearly cannot simply update the term
-** index when a document is deleted or updated.  For deletions, we
-** write an empty doclist (varint(docid) varint(POS_END)), for updates
-** we simply write the new doclist.  Segment merges overwrite older
-** data for a particular docid with newer data, so deletes or updates
-** will eventually overtake the earlier data and knock it out.  The
-** query logic likewise merges doclists so that newer data knocks out
-** older data.
-*/
-
-/************** Include fts3Int.h in the middle of fts3.c ********************/
-/************** Begin file fts3Int.h *****************************************/
-/*
-** 2009 Nov 12
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-*/
-#ifndef _FTSINT_H
-#define _FTSINT_H
-
-#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
-# define NDEBUG 1
-#endif
-
-/* FTS3/FTS4 require virtual tables */
-#ifdef SQLITE_OMIT_VIRTUALTABLE
-# undef SQLITE_ENABLE_FTS3
-# undef SQLITE_ENABLE_FTS4
-#endif
-
-/*
-** FTS4 is really an extension for FTS3.  It is enabled using the
-** SQLITE_ENABLE_FTS3 macro.  But to avoid confusion we also all
-** the SQLITE_ENABLE_FTS4 macro to serve as an alisse for SQLITE_ENABLE_FTS3.
-*/
-#if defined(SQLITE_ENABLE_FTS4) && !defined(SQLITE_ENABLE_FTS3)
-# define SQLITE_ENABLE_FTS3
-#endif
-
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* If not building as part of the core, include tdsqlite3ext.h. */
-#ifndef SQLITE_CORE
-/* # include "tdsqlite3ext.h"  */
-SQLITE_EXTENSION_INIT3
-#endif
-
-/* #include "sqlite3.h" */
-/************** Include fts3_tokenizer.h in the middle of fts3Int.h **********/
-/************** Begin file fts3_tokenizer.h **********************************/
-/*
-** 2006 July 10
-**
-** The author disclaims copyright to this source code.
-**
-*************************************************************************
-** Defines the interface to tokenizers used by fulltext-search.  There
-** are three basic components:
-**
-** tdsqlite3_tokenizer_module is a singleton defining the tokenizer
-** interface functions.  This is essentially the class structure for
-** tokenizers.
-**
-** tdsqlite3_tokenizer is used to define a particular tokenizer, perhaps
-** including customization information defined at creation time.
-**
-** tdsqlite3_tokenizer_cursor is generated by a tokenizer to generate
-** tokens from a particular input.
-*/
-#ifndef _FTS3_TOKENIZER_H_
-#define _FTS3_TOKENIZER_H_
-
-/* TODO(shess) Only used for SQLITE_OK and SQLITE_DONE at this time.
-** If tokenizers are to be allowed to call tdsqlite3_*() functions, then
-** we will need a way to register the API consistently.
-*/
-/* #include "sqlite3.h" */
-
-/*
-** Structures used by the tokenizer interface. When a new tokenizer
-** implementation is registered, the caller provides a pointer to
-** an tdsqlite3_tokenizer_module containing pointers to the callback
-** functions that make up an implementation.
-**
-** When an fts3 table is created, it passes any arguments passed to
-** the tokenizer clause of the CREATE VIRTUAL TABLE statement to the
-** tdsqlite3_tokenizer_module.xCreate() function of the requested tokenizer
-** implementation. The xCreate() function in turn returns an 
-** tdsqlite3_tokenizer structure representing the specific tokenizer to
-** be used for the fts3 table (customized by the tokenizer clause arguments).
-**
-** To tokenize an input buffer, the tdsqlite3_tokenizer_module.xOpen()
-** method is called. It returns an tdsqlite3_tokenizer_cursor object
-** that may be used to tokenize a specific input buffer based on
-** the tokenization rules supplied by a specific tdsqlite3_tokenizer
-** object.
-*/
-typedef struct tdsqlite3_tokenizer_module tdsqlite3_tokenizer_module;
-typedef struct tdsqlite3_tokenizer tdsqlite3_tokenizer;
-typedef struct tdsqlite3_tokenizer_cursor tdsqlite3_tokenizer_cursor;
-
-struct tdsqlite3_tokenizer_module {
-
-  /*
-  ** Structure version. Should always be set to 0 or 1.
-  */
-  int iVersion;
-
-  /*
-  ** Create a new tokenizer. The values in the argv[] array are the
-  ** arguments passed to the "tokenizer" clause of the CREATE VIRTUAL
-  ** TABLE statement that created the fts3 table. For example, if
-  ** the following SQL is executed:
-  **
-  **   CREATE .. USING fts3( ... , tokenizer <tokenizer-name> arg1 arg2)
-  **
-  ** then argc is set to 2, and the argv[] array contains pointers
-  ** to the strings "arg1" and "arg2".
-  **
-  ** This method should return either SQLITE_OK (0), or an SQLite error 
-  ** code. If SQLITE_OK is returned, then *ppTokenizer should be set
-  ** to point at the newly created tokenizer structure. The generic
-  ** tdsqlite3_tokenizer.pModule variable should not be initialized by
-  ** this callback. The caller will do so.
-  */
-  int (*xCreate)(
-    int argc,                           /* Size of argv array */
-    const char *const*argv,             /* Tokenizer argument strings */
-    tdsqlite3_tokenizer **ppTokenizer     /* OUT: Created tokenizer */
-  );
-
-  /*
-  ** Destroy an existing tokenizer. The fts3 module calls this method
-  ** exactly once for each successful call to xCreate().
-  */
-  int (*xDestroy)(tdsqlite3_tokenizer *pTokenizer);
-
-  /*
-  ** Create a tokenizer cursor to tokenize an input buffer. The caller
-  ** is responsible for ensuring that the input buffer remains valid
-  ** until the cursor is closed (using the xClose() method). 
-  */
-  int (*xOpen)(
-    tdsqlite3_tokenizer *pTokenizer,       /* Tokenizer object */
-    const char *pInput, int nBytes,      /* Input buffer */
-    tdsqlite3_tokenizer_cursor **ppCursor  /* OUT: Created tokenizer cursor */
-  );
-
-  /*
-  ** Destroy an existing tokenizer cursor. The fts3 module calls this 
-  ** method exactly once for each successful call to xOpen().
-  */
-  int (*xClose)(tdsqlite3_tokenizer_cursor *pCursor);
-
-  /*
-  ** Retrieve the next token from the tokenizer cursor pCursor. This
-  ** method should either return SQLITE_OK and set the values of the
-  ** "OUT" variables identified below, or SQLITE_DONE to indicate that
-  ** the end of the buffer has been reached, or an SQLite error code.
-  **
-  ** *ppToken should be set to point at a buffer containing the 
-  ** normalized version of the token (i.e. after any case-folding and/or
-  ** stemming has been performed). *pnBytes should be set to the length
-  ** of this buffer in bytes. The input text that generated the token is
-  ** identified by the byte offsets returned in *piStartOffset and
-  ** *piEndOffset. *piStartOffset should be set to the index of the first
-  ** byte of the token in the input buffer. *piEndOffset should be set
-  ** to the index of the first byte just past the end of the token in
-  ** the input buffer.
-  **
-  ** The buffer *ppToken is set to point at is managed by the tokenizer
-  ** implementation. It is only required to be valid until the next call
-  ** to xNext() or xClose(). 
-  */
-  /* TODO(shess) current implementation requires pInput to be
-  ** nul-terminated.  This should either be fixed, or pInput/nBytes
-  ** should be converted to zInput.
-  */
-  int (*xNext)(
-    tdsqlite3_tokenizer_cursor *pCursor,   /* Tokenizer cursor */
-    const char **ppToken, int *pnBytes,  /* OUT: Normalized text for token */
-    int *piStartOffset,  /* OUT: Byte offset of token in input buffer */
-    int *piEndOffset,    /* OUT: Byte offset of end of token in input buffer */
-    int *piPosition      /* OUT: Number of tokens returned before this one */
-  );
-
-  /***********************************************************************
-  ** Methods below this point are only available if iVersion>=1.
-  */
-
-  /* 
-  ** Configure the language id of a tokenizer cursor.
-  */
-  int (*xLanguageid)(tdsqlite3_tokenizer_cursor *pCsr, int iLangid);
-};
-
-struct tdsqlite3_tokenizer {
-  const tdsqlite3_tokenizer_module *pModule;  /* The module for this tokenizer */
-  /* Tokenizer implementations will typically add additional fields */
-};
-
-struct tdsqlite3_tokenizer_cursor {
-  tdsqlite3_tokenizer *pTokenizer;       /* Tokenizer for this cursor. */
-  /* Tokenizer implementations will typically add additional fields */
-};
-
-int fts3_global_term_cnt(int iTerm, int iCol);
-int fts3_term_cnt(int iTerm, int iCol);
-
-
-#endif /* _FTS3_TOKENIZER_H_ */
-
-/************** End of fts3_tokenizer.h **************************************/
-/************** Continuing where we left off in fts3Int.h ********************/
-/************** Include fts3_hash.h in the middle of fts3Int.h ***************/
-/************** Begin file fts3_hash.h ***************************************/
-/*
-** 2001 September 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This is the header file for the generic hash-table implementation
-** used in SQLite.  We've modified it slightly to serve as a standalone
-** hash table implementation for the full-text indexing module.
-**
-*/
-#ifndef _FTS3_HASH_H_
-#define _FTS3_HASH_H_
-
-/* Forward declarations of structures. */
-typedef struct Fts3Hash Fts3Hash;
-typedef struct Fts3HashElem Fts3HashElem;
-
-/* A complete hash table is an instance of the following structure.
-** The internals of this structure are intended to be opaque -- client
-** code should not attempt to access or modify the fields of this structure
-** directly.  Change this structure only by using the routines below.
-** However, many of the "procedures" and "functions" for modifying and
-** accessing this structure are really macros, so we can't really make
-** this structure opaque.
-*/
-struct Fts3Hash {
-  char keyClass;          /* HASH_INT, _POINTER, _STRING, _BINARY */
-  char copyKey;           /* True if copy of key made on insert */
-  int count;              /* Number of entries in this table */
-  Fts3HashElem *first;    /* The first element of the array */
-  int htsize;             /* Number of buckets in the hash table */
-  struct _fts3ht {        /* the hash table */
-    int count;               /* Number of entries with this hash */
-    Fts3HashElem *chain;     /* Pointer to first entry with this hash */
-  } *ht;
-};
-
-/* Each element in the hash table is an instance of the following 
-** structure.  All elements are stored on a single doubly-linked list.
-**
-** Again, this structure is intended to be opaque, but it can't really
-** be opaque because it is used by macros.
-*/
-struct Fts3HashElem {
-  Fts3HashElem *next, *prev; /* Next and previous elements in the table */
-  void *data;                /* Data associated with this element */
-  void *pKey; int nKey;      /* Key associated with this element */
-};
-
-/*
-** There are 2 different modes of operation for a hash table:
-**
-**   FTS3_HASH_STRING        pKey points to a string that is nKey bytes long
-**                           (including the null-terminator, if any).  Case
-**                           is respected in comparisons.
-**
-**   FTS3_HASH_BINARY        pKey points to binary data nKey bytes long. 
-**                           memcmp() is used to compare keys.
-**
-** A copy of the key is made if the copyKey parameter to fts3HashInit is 1.  
-*/
-#define FTS3_HASH_STRING    1
-#define FTS3_HASH_BINARY    2
-
-/*
-** Access routines.  To delete, insert a NULL pointer.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3HashInit(Fts3Hash *pNew, char keyClass, char copyKey);
-SQLITE_PRIVATE void *tdsqlite3Fts3HashInsert(Fts3Hash*, const void *pKey, int nKey, void *pData);
-SQLITE_PRIVATE void *tdsqlite3Fts3HashFind(const Fts3Hash*, const void *pKey, int nKey);
-SQLITE_PRIVATE void tdsqlite3Fts3HashClear(Fts3Hash*);
-SQLITE_PRIVATE Fts3HashElem *tdsqlite3Fts3HashFindElem(const Fts3Hash *, const void *, int);
-
-/*
-** Shorthand for the functions above
-*/
-#define fts3HashInit     tdsqlite3Fts3HashInit
-#define fts3HashInsert   tdsqlite3Fts3HashInsert
-#define fts3HashFind     tdsqlite3Fts3HashFind
-#define fts3HashClear    tdsqlite3Fts3HashClear
-#define fts3HashFindElem tdsqlite3Fts3HashFindElem
-
-/*
-** Macros for looping over all elements of a hash table.  The idiom is
-** like this:
-**
-**   Fts3Hash h;
-**   Fts3HashElem *p;
-**   ...
-**   for(p=fts3HashFirst(&h); p; p=fts3HashNext(p)){
-**     SomeStructure *pData = fts3HashData(p);
-**     // do something with pData
-**   }
-*/
-#define fts3HashFirst(H)  ((H)->first)
-#define fts3HashNext(E)   ((E)->next)
-#define fts3HashData(E)   ((E)->data)
-#define fts3HashKey(E)    ((E)->pKey)
-#define fts3HashKeysize(E) ((E)->nKey)
-
-/*
-** Number of entries in a hash table
-*/
-#define fts3HashCount(H)  ((H)->count)
-
-#endif /* _FTS3_HASH_H_ */
-
-/************** End of fts3_hash.h *******************************************/
-/************** Continuing where we left off in fts3Int.h ********************/
-
-/*
-** This constant determines the maximum depth of an FTS expression tree
-** that the library will create and use. FTS uses recursion to perform 
-** various operations on the query tree, so the disadvantage of a large
-** limit is that it may allow very large queries to use large amounts
-** of stack space (perhaps causing a stack overflow).
-*/
-#ifndef SQLITE_FTS3_MAX_EXPR_DEPTH
-# define SQLITE_FTS3_MAX_EXPR_DEPTH 12
-#endif
-
-
-/*
-** This constant controls how often segments are merged. Once there are
-** FTS3_MERGE_COUNT segments of level N, they are merged into a single
-** segment of level N+1.
-*/
-#define FTS3_MERGE_COUNT 16
-
-/*
-** This is the maximum amount of data (in bytes) to store in the 
-** Fts3Table.pendingTerms hash table. Normally, the hash table is
-** populated as documents are inserted/updated/deleted in a transaction
-** and used to create a new segment when the transaction is committed.
-** However if this limit is reached midway through a transaction, a new 
-** segment is created and the hash table cleared immediately.
-*/
-#define FTS3_MAX_PENDING_DATA (1*1024*1024)
-
-/*
-** Macro to return the number of elements in an array. SQLite has a
-** similar macro called ArraySize(). Use a different name to avoid
-** a collision when building an amalgamation with built-in FTS3.
-*/
-#define SizeofArray(X) ((int)(sizeof(X)/sizeof(X[0])))
-
-
-#ifndef MIN
-# define MIN(x,y) ((x)<(y)?(x):(y))
-#endif
-#ifndef MAX
-# define MAX(x,y) ((x)>(y)?(x):(y))
-#endif
-
-/*
-** Maximum length of a varint encoded integer. The varint format is different
-** from that used by SQLite, so the maximum length is 10, not 9.
-*/
-#define FTS3_VARINT_MAX 10
-
-#define FTS3_BUFFER_PADDING 8
-
-/*
-** FTS4 virtual tables may maintain multiple indexes - one index of all terms
-** in the document set and zero or more prefix indexes. All indexes are stored
-** as one or more b+-trees in the %_segments and %_segdir tables. 
-**
-** It is possible to determine which index a b+-tree belongs to based on the
-** value stored in the "%_segdir.level" column. Given this value L, the index
-** that the b+-tree belongs to is (L<<10). In other words, all b+-trees with
-** level values between 0 and 1023 (inclusive) belong to index 0, all levels
-** between 1024 and 2047 to index 1, and so on.
-**
-** It is considered impossible for an index to use more than 1024 levels. In 
-** theory though this may happen, but only after at least 
-** (FTS3_MERGE_COUNT^1024) separate flushes of the pending-terms tables.
-*/
-#define FTS3_SEGDIR_MAXLEVEL      1024
-#define FTS3_SEGDIR_MAXLEVEL_STR "1024"
-
-/*
-** The testcase() macro is only used by the amalgamation.  If undefined,
-** make it a no-op.
-*/
-#ifndef testcase
-# define testcase(X)
-#endif
-
-/*
-** Terminator values for position-lists and column-lists.
-*/
-#define POS_COLUMN  (1)     /* Column-list terminator */
-#define POS_END     (0)     /* Position-list terminator */ 
-
-/*
-** The assert_fts3_nc() macro is similar to the assert() macro, except that it
-** is used for assert() conditions that are true only if it can be 
-** guranteed that the database is not corrupt.
-*/
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-SQLITE_API extern int tdsqlite3_fts3_may_be_corrupt;
-# define assert_fts3_nc(x) assert(tdsqlite3_fts3_may_be_corrupt || (x))
-#else
-# define assert_fts3_nc(x) assert(x)
-#endif
-
-/*
-** This section provides definitions to allow the
-** FTS3 extension to be compiled outside of the 
-** amalgamation.
-*/
-#ifndef SQLITE_AMALGAMATION
-/*
-** Macros indicating that conditional expressions are always true or
-** false.
-*/
-#ifdef SQLITE_COVERAGE_TEST
-# define ALWAYS(x) (1)
-# define NEVER(X)  (0)
-#elif defined(SQLITE_DEBUG)
-# define ALWAYS(x) tdsqlite3Fts3Always((x)!=0)
-# define NEVER(x) tdsqlite3Fts3Never((x)!=0)
-SQLITE_PRIVATE int tdsqlite3Fts3Always(int b);
-SQLITE_PRIVATE int tdsqlite3Fts3Never(int b);
-#else
-# define ALWAYS(x) (x)
-# define NEVER(x)  (x)
-#endif
-
-/*
-** Internal types used by SQLite.
-*/
-typedef unsigned char u8;         /* 1-byte (or larger) unsigned integer */
-typedef short int i16;            /* 2-byte (or larger) signed integer */
-typedef unsigned int u32;         /* 4-byte unsigned integer */
-typedef tdsqlite3_uint64 u64;       /* 8-byte unsigned integer */
-typedef tdsqlite3_int64 i64;        /* 8-byte signed integer */
-
-/*
-** Macro used to suppress compiler warnings for unused parameters.
-*/
-#define UNUSED_PARAMETER(x) (void)(x)
-
-/*
-** Activate assert() only if SQLITE_TEST is enabled.
-*/
-#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
-# define NDEBUG 1
-#endif
-
-/*
-** The TESTONLY macro is used to enclose variable declarations or
-** other bits of code that are needed to support the arguments
-** within testcase() and assert() macros.
-*/
-#if defined(SQLITE_DEBUG) || defined(SQLITE_COVERAGE_TEST)
-# define TESTONLY(X)  X
-#else
-# define TESTONLY(X)
-#endif
-
-#define LARGEST_INT64  (0xffffffff|(((i64)0x7fffffff)<<32))
-#define SMALLEST_INT64 (((i64)-1) - LARGEST_INT64)
-
-#endif /* SQLITE_AMALGAMATION */
-
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3Fts3Corrupt(void);
-# define FTS_CORRUPT_VTAB tdsqlite3Fts3Corrupt()
-#else
-# define FTS_CORRUPT_VTAB SQLITE_CORRUPT_VTAB
-#endif
-
-typedef struct Fts3Table Fts3Table;
-typedef struct Fts3Cursor Fts3Cursor;
-typedef struct Fts3Expr Fts3Expr;
-typedef struct Fts3Phrase Fts3Phrase;
-typedef struct Fts3PhraseToken Fts3PhraseToken;
-
-typedef struct Fts3Doclist Fts3Doclist;
-typedef struct Fts3SegFilter Fts3SegFilter;
-typedef struct Fts3DeferredToken Fts3DeferredToken;
-typedef struct Fts3SegReader Fts3SegReader;
-typedef struct Fts3MultiSegReader Fts3MultiSegReader;
-
-typedef struct MatchinfoBuffer MatchinfoBuffer;
-
-/*
-** A connection to a fulltext index is an instance of the following
-** structure. The xCreate and xConnect methods create an instance
-** of this structure and xDestroy and xDisconnect free that instance.
-** All other methods receive a pointer to the structure as one of their
-** arguments.
-*/
-struct Fts3Table {
-  tdsqlite3_vtab base;              /* Base class used by SQLite core */
-  tdsqlite3 *db;                    /* The database connection */
-  const char *zDb;                /* logical database name */
-  const char *zName;              /* virtual table name */
-  int nColumn;                    /* number of named columns in virtual table */
-  char **azColumn;                /* column names.  malloced */
-  u8 *abNotindexed;               /* True for 'notindexed' columns */
-  tdsqlite3_tokenizer *pTokenizer;  /* tokenizer for inserts and queries */
-  char *zContentTbl;              /* content=xxx option, or NULL */
-  char *zLanguageid;              /* languageid=xxx option, or NULL */
-  int nAutoincrmerge;             /* Value configured by 'automerge' */
-  u32 nLeafAdd;                   /* Number of leaf blocks added this trans */
-  int bLock;                      /* Used to prevent recursive content= tbls */
-
-  /* Precompiled statements used by the implementation. Each of these 
-  ** statements is run and reset within a single virtual table API call. 
-  */
-  tdsqlite3_stmt *aStmt[40];
-  tdsqlite3_stmt *pSeekStmt;        /* Cache for fts3CursorSeekStmt() */
-
-  char *zReadExprlist;
-  char *zWriteExprlist;
-
-  int nNodeSize;                  /* Soft limit for node size */
-  u8 bFts4;                       /* True for FTS4, false for FTS3 */
-  u8 bHasStat;                    /* True if %_stat table exists (2==unknown) */
-  u8 bHasDocsize;                 /* True if %_docsize table exists */
-  u8 bDescIdx;                    /* True if doclists are in reverse order */
-  u8 bIgnoreSavepoint;            /* True to ignore xSavepoint invocations */
-  int nPgsz;                      /* Page size for host database */
-  char *zSegmentsTbl;             /* Name of %_segments table */
-  tdsqlite3_blob *pSegments;        /* Blob handle open on %_segments table */
-
-  /* 
-  ** The following array of hash tables is used to buffer pending index 
-  ** updates during transactions. All pending updates buffered at any one
-  ** time must share a common language-id (see the FTS4 langid= feature).
-  ** The current language id is stored in variable iPrevLangid.
-  **
-  ** A single FTS4 table may have multiple full-text indexes. For each index
-  ** there is an entry in the aIndex[] array. Index 0 is an index of all the
-  ** terms that appear in the document set. Each subsequent index in aIndex[]
-  ** is an index of prefixes of a specific length.
-  **
-  ** Variable nPendingData contains an estimate the memory consumed by the 
-  ** pending data structures, including hash table overhead, but not including
-  ** malloc overhead.  When nPendingData exceeds nMaxPendingData, all hash
-  ** tables are flushed to disk. Variable iPrevDocid is the docid of the most 
-  ** recently inserted record.
-  */
-  int nIndex;                     /* Size of aIndex[] */
-  struct Fts3Index {
-    int nPrefix;                  /* Prefix length (0 for main terms index) */
-    Fts3Hash hPending;            /* Pending terms table for this index */
-  } *aIndex;
-  int nMaxPendingData;            /* Max pending data before flush to disk */
-  int nPendingData;               /* Current bytes of pending data */
-  sqlite_int64 iPrevDocid;        /* Docid of most recently inserted document */
-  int iPrevLangid;                /* Langid of recently inserted document */
-  int bPrevDelete;                /* True if last operation was a delete */
-
-#if defined(SQLITE_DEBUG) || defined(SQLITE_COVERAGE_TEST)
-  /* State variables used for validating that the transaction control
-  ** methods of the virtual table are called at appropriate times.  These
-  ** values do not contribute to FTS functionality; they are used for
-  ** verifying the operation of the SQLite core.
-  */
-  int inTransaction;     /* True after xBegin but before xCommit/xRollback */
-  int mxSavepoint;       /* Largest valid xSavepoint integer */
-#endif
-
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  /* True to disable the incremental doclist optimization. This is controled
-  ** by special insert command 'test-no-incr-doclist'.  */
-  int bNoIncrDoclist;
-
-  /* Number of segments in a level */
-  int nMergeCount;
-#endif
-};
-
-/* Macro to find the number of segments to merge */
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-# define MergeCount(P) ((P)->nMergeCount)
-#else
-# define MergeCount(P) FTS3_MERGE_COUNT
-#endif
-
-/*
-** When the core wants to read from the virtual table, it creates a
-** virtual table cursor (an instance of the following structure) using
-** the xOpen method. Cursors are destroyed using the xClose method.
-*/
-struct Fts3Cursor {
-  tdsqlite3_vtab_cursor base;       /* Base class used by SQLite core */
-  i16 eSearch;                    /* Search strategy (see below) */
-  u8 isEof;                       /* True if at End Of Results */
-  u8 isRequireSeek;               /* True if must seek pStmt to %_content row */
-  u8 bSeekStmt;                   /* True if pStmt is a seek */
-  tdsqlite3_stmt *pStmt;            /* Prepared statement in use by the cursor */
-  Fts3Expr *pExpr;                /* Parsed MATCH query string */
-  int iLangid;                    /* Language being queried for */
-  int nPhrase;                    /* Number of matchable phrases in query */
-  Fts3DeferredToken *pDeferred;   /* Deferred search tokens, if any */
-  tdsqlite3_int64 iPrevId;          /* Previous id read from aDoclist */
-  char *pNextId;                  /* Pointer into the body of aDoclist */
-  char *aDoclist;                 /* List of docids for full-text queries */
-  int nDoclist;                   /* Size of buffer at aDoclist */
-  u8 bDesc;                       /* True to sort in descending order */
-  int eEvalmode;                  /* An FTS3_EVAL_XX constant */
-  int nRowAvg;                    /* Average size of database rows, in pages */
-  tdsqlite3_int64 nDoc;             /* Documents in table */
-  i64 iMinDocid;                  /* Minimum docid to return */
-  i64 iMaxDocid;                  /* Maximum docid to return */
-  int isMatchinfoNeeded;          /* True when aMatchinfo[] needs filling in */
-  MatchinfoBuffer *pMIBuffer;     /* Buffer for matchinfo data */
-};
-
-#define FTS3_EVAL_FILTER    0
-#define FTS3_EVAL_NEXT      1
-#define FTS3_EVAL_MATCHINFO 2
-
-/*
-** The Fts3Cursor.eSearch member is always set to one of the following.
-** Actualy, Fts3Cursor.eSearch can be greater than or equal to
-** FTS3_FULLTEXT_SEARCH.  If so, then Fts3Cursor.eSearch - 2 is the index
-** of the column to be searched.  For example, in
-**
-**     CREATE VIRTUAL TABLE ex1 USING fts3(a,b,c,d);
-**     SELECT docid FROM ex1 WHERE b MATCH 'one two three';
-** 
-** Because the LHS of the MATCH operator is 2nd column "b",
-** Fts3Cursor.eSearch will be set to FTS3_FULLTEXT_SEARCH+1.  (+0 for a,
-** +1 for b, +2 for c, +3 for d.)  If the LHS of MATCH were "ex1" 
-** indicating that all columns should be searched,
-** then eSearch would be set to FTS3_FULLTEXT_SEARCH+4.
-*/
-#define FTS3_FULLSCAN_SEARCH 0    /* Linear scan of %_content table */
-#define FTS3_DOCID_SEARCH    1    /* Lookup by rowid on %_content table */
-#define FTS3_FULLTEXT_SEARCH 2    /* Full-text index search */
-
-/*
-** The lower 16-bits of the tdsqlite3_index_info.idxNum value set by
-** the xBestIndex() method contains the Fts3Cursor.eSearch value described
-** above. The upper 16-bits contain a combination of the following
-** bits, used to describe extra constraints on full-text searches.
-*/
-#define FTS3_HAVE_LANGID    0x00010000      /* languageid=? */
-#define FTS3_HAVE_DOCID_GE  0x00020000      /* docid>=? */
-#define FTS3_HAVE_DOCID_LE  0x00040000      /* docid<=? */
-
-struct Fts3Doclist {
-  char *aAll;                    /* Array containing doclist (or NULL) */
-  int nAll;                      /* Size of a[] in bytes */
-  char *pNextDocid;              /* Pointer to next docid */
-
-  tdsqlite3_int64 iDocid;          /* Current docid (if pList!=0) */
-  int bFreeList;                 /* True if pList should be tdsqlite3_free()d */
-  char *pList;                   /* Pointer to position list following iDocid */
-  int nList;                     /* Length of position list */
-};
-
-/*
-** A "phrase" is a sequence of one or more tokens that must match in
-** sequence.  A single token is the base case and the most common case.
-** For a sequence of tokens contained in double-quotes (i.e. "one two three")
-** nToken will be the number of tokens in the string.
-*/
-struct Fts3PhraseToken {
-  char *z;                        /* Text of the token */
-  int n;                          /* Number of bytes in buffer z */
-  int isPrefix;                   /* True if token ends with a "*" character */
-  int bFirst;                     /* True if token must appear at position 0 */
-
-  /* Variables above this point are populated when the expression is
-  ** parsed (by code in fts3_expr.c). Below this point the variables are
-  ** used when evaluating the expression. */
-  Fts3DeferredToken *pDeferred;   /* Deferred token object for this token */
-  Fts3MultiSegReader *pSegcsr;    /* Segment-reader for this token */
-};
-
-struct Fts3Phrase {
-  /* Cache of doclist for this phrase. */
-  Fts3Doclist doclist;
-  int bIncr;                 /* True if doclist is loaded incrementally */
-  int iDoclistToken;
-
-  /* Used by tdsqlite3Fts3EvalPhrasePoslist() if this is a descendent of an
-  ** OR condition.  */
-  char *pOrPoslist;
-  i64 iOrDocid;
-
-  /* Variables below this point are populated by fts3_expr.c when parsing 
-  ** a MATCH expression. Everything above is part of the evaluation phase. 
-  */
-  int nToken;                /* Number of tokens in the phrase */
-  int iColumn;               /* Index of column this phrase must match */
-  Fts3PhraseToken aToken[1]; /* One entry for each token in the phrase */
-};
-
-/*
-** A tree of these objects forms the RHS of a MATCH operator.
-**
-** If Fts3Expr.eType is FTSQUERY_PHRASE and isLoaded is true, then aDoclist 
-** points to a malloced buffer, size nDoclist bytes, containing the results 
-** of this phrase query in FTS3 doclist format. As usual, the initial 
-** "Length" field found in doclists stored on disk is omitted from this 
-** buffer.
-**
-** Variable aMI is used only for FTSQUERY_NEAR nodes to store the global
-** matchinfo data. If it is not NULL, it points to an array of size nCol*3,
-** where nCol is the number of columns in the queried FTS table. The array
-** is populated as follows:
-**
-**   aMI[iCol*3 + 0] = Undefined
-**   aMI[iCol*3 + 1] = Number of occurrences
-**   aMI[iCol*3 + 2] = Number of rows containing at least one instance
-**
-** The aMI array is allocated using tdsqlite3_malloc(). It should be freed 
-** when the expression node is.
-*/
-struct Fts3Expr {
-  int eType;                 /* One of the FTSQUERY_XXX values defined below */
-  int nNear;                 /* Valid if eType==FTSQUERY_NEAR */
-  Fts3Expr *pParent;         /* pParent->pLeft==this or pParent->pRight==this */
-  Fts3Expr *pLeft;           /* Left operand */
-  Fts3Expr *pRight;          /* Right operand */
-  Fts3Phrase *pPhrase;       /* Valid if eType==FTSQUERY_PHRASE */
-
-  /* The following are used by the fts3_eval.c module. */
-  tdsqlite3_int64 iDocid;      /* Current docid */
-  u8 bEof;                   /* True this expression is at EOF already */
-  u8 bStart;                 /* True if iDocid is valid */
-  u8 bDeferred;              /* True if this expression is entirely deferred */
-
-  /* The following are used by the fts3_snippet.c module. */
-  int iPhrase;               /* Index of this phrase in matchinfo() results */
-  u32 *aMI;                  /* See above */
-};
-
-/*
-** Candidate values for Fts3Query.eType. Note that the order of the first
-** four values is in order of precedence when parsing expressions. For 
-** example, the following:
-**
-**   "a OR b AND c NOT d NEAR e"
-**
-** is equivalent to:
-**
-**   "a OR (b AND (c NOT (d NEAR e)))"
-*/
-#define FTSQUERY_NEAR   1
-#define FTSQUERY_NOT    2
-#define FTSQUERY_AND    3
-#define FTSQUERY_OR     4
-#define FTSQUERY_PHRASE 5
-
-
-/* fts3_write.c */
-SQLITE_PRIVATE int tdsqlite3Fts3UpdateMethod(tdsqlite3_vtab*,int,tdsqlite3_value**,tdsqlite3_int64*);
-SQLITE_PRIVATE int tdsqlite3Fts3PendingTermsFlush(Fts3Table *);
-SQLITE_PRIVATE void tdsqlite3Fts3PendingTermsClear(Fts3Table *);
-SQLITE_PRIVATE int tdsqlite3Fts3Optimize(Fts3Table *);
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderNew(int, int, tdsqlite3_int64,
-  tdsqlite3_int64, tdsqlite3_int64, const char *, int, Fts3SegReader**);
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderPending(
-  Fts3Table*,int,const char*,int,int,Fts3SegReader**);
-SQLITE_PRIVATE void tdsqlite3Fts3SegReaderFree(Fts3SegReader *);
-SQLITE_PRIVATE int tdsqlite3Fts3AllSegdirs(Fts3Table*, int, int, int, tdsqlite3_stmt **);
-SQLITE_PRIVATE int tdsqlite3Fts3ReadBlock(Fts3Table*, tdsqlite3_int64, char **, int*, int*);
-
-SQLITE_PRIVATE int tdsqlite3Fts3SelectDoctotal(Fts3Table *, tdsqlite3_stmt **);
-SQLITE_PRIVATE int tdsqlite3Fts3SelectDocsize(Fts3Table *, tdsqlite3_int64, tdsqlite3_stmt **);
-
-#ifndef SQLITE_DISABLE_FTS4_DEFERRED
-SQLITE_PRIVATE void tdsqlite3Fts3FreeDeferredTokens(Fts3Cursor *);
-SQLITE_PRIVATE int tdsqlite3Fts3DeferToken(Fts3Cursor *, Fts3PhraseToken *, int);
-SQLITE_PRIVATE int tdsqlite3Fts3CacheDeferredDoclists(Fts3Cursor *);
-SQLITE_PRIVATE void tdsqlite3Fts3FreeDeferredDoclists(Fts3Cursor *);
-SQLITE_PRIVATE int tdsqlite3Fts3DeferredTokenList(Fts3DeferredToken *, char **, int *);
-#else
-# define tdsqlite3Fts3FreeDeferredTokens(x)
-# define tdsqlite3Fts3DeferToken(x,y,z) SQLITE_OK
-# define tdsqlite3Fts3CacheDeferredDoclists(x) SQLITE_OK
-# define tdsqlite3Fts3FreeDeferredDoclists(x)
-# define tdsqlite3Fts3DeferredTokenList(x,y,z) SQLITE_OK
-#endif
-
-SQLITE_PRIVATE void tdsqlite3Fts3SegmentsClose(Fts3Table *);
-SQLITE_PRIVATE int tdsqlite3Fts3MaxLevel(Fts3Table *, int *);
-
-/* Special values interpreted by tdsqlite3SegReaderCursor() */
-#define FTS3_SEGCURSOR_PENDING        -1
-#define FTS3_SEGCURSOR_ALL            -2
-
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderStart(Fts3Table*, Fts3MultiSegReader*, Fts3SegFilter*);
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderStep(Fts3Table *, Fts3MultiSegReader *);
-SQLITE_PRIVATE void tdsqlite3Fts3SegReaderFinish(Fts3MultiSegReader *);
-
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderCursor(Fts3Table *, 
-    int, int, int, const char *, int, int, int, Fts3MultiSegReader *);
-
-/* Flags allowed as part of the 4th argument to SegmentReaderIterate() */
-#define FTS3_SEGMENT_REQUIRE_POS   0x00000001
-#define FTS3_SEGMENT_IGNORE_EMPTY  0x00000002
-#define FTS3_SEGMENT_COLUMN_FILTER 0x00000004
-#define FTS3_SEGMENT_PREFIX        0x00000008
-#define FTS3_SEGMENT_SCAN          0x00000010
-#define FTS3_SEGMENT_FIRST         0x00000020
-
-/* Type passed as 4th argument to SegmentReaderIterate() */
-struct Fts3SegFilter {
-  const char *zTerm;
-  int nTerm;
-  int iCol;
-  int flags;
-};
-
-struct Fts3MultiSegReader {
-  /* Used internally by tdsqlite3Fts3SegReaderXXX() calls */
-  Fts3SegReader **apSegment;      /* Array of Fts3SegReader objects */
-  int nSegment;                   /* Size of apSegment array */
-  int nAdvance;                   /* How many seg-readers to advance */
-  Fts3SegFilter *pFilter;         /* Pointer to filter object */
-  char *aBuffer;                  /* Buffer to merge doclists in */
-  int nBuffer;                    /* Allocated size of aBuffer[] in bytes */
-
-  int iColFilter;                 /* If >=0, filter for this column */
-  int bRestart;
-
-  /* Used by fts3.c only. */
-  int nCost;                      /* Cost of running iterator */
-  int bLookup;                    /* True if a lookup of a single entry. */
-
-  /* Output values. Valid only after Fts3SegReaderStep() returns SQLITE_ROW. */
-  char *zTerm;                    /* Pointer to term buffer */
-  int nTerm;                      /* Size of zTerm in bytes */
-  char *aDoclist;                 /* Pointer to doclist buffer */
-  int nDoclist;                   /* Size of aDoclist[] in bytes */
-};
-
-SQLITE_PRIVATE int tdsqlite3Fts3Incrmerge(Fts3Table*,int,int);
-
-#define fts3GetVarint32(p, piVal) (                                           \
-  (*(u8*)(p)&0x80) ? tdsqlite3Fts3GetVarint32(p, piVal) : (*piVal=*(u8*)(p), 1) \
-)
-
-/* fts3.c */
-SQLITE_PRIVATE void tdsqlite3Fts3ErrMsg(char**,const char*,...);
-SQLITE_PRIVATE int tdsqlite3Fts3PutVarint(char *, tdsqlite3_int64);
-SQLITE_PRIVATE int tdsqlite3Fts3GetVarint(const char *, sqlite_int64 *);
-SQLITE_PRIVATE int tdsqlite3Fts3GetVarintU(const char *, sqlite_uint64 *);
-SQLITE_PRIVATE int tdsqlite3Fts3GetVarintBounded(const char*,const char*,tdsqlite3_int64*);
-SQLITE_PRIVATE int tdsqlite3Fts3GetVarint32(const char *, int *);
-SQLITE_PRIVATE int tdsqlite3Fts3VarintLen(tdsqlite3_uint64);
-SQLITE_PRIVATE void tdsqlite3Fts3Dequote(char *);
-SQLITE_PRIVATE void tdsqlite3Fts3DoclistPrev(int,char*,int,char**,tdsqlite3_int64*,int*,u8*);
-SQLITE_PRIVATE int tdsqlite3Fts3EvalPhraseStats(Fts3Cursor *, Fts3Expr *, u32 *);
-SQLITE_PRIVATE int tdsqlite3Fts3FirstFilter(tdsqlite3_int64, char *, int, char *);
-SQLITE_PRIVATE void tdsqlite3Fts3CreateStatTable(int*, Fts3Table*);
-SQLITE_PRIVATE int tdsqlite3Fts3EvalTestDeferred(Fts3Cursor *pCsr, int *pRc);
-
-/* fts3_tokenizer.c */
-SQLITE_PRIVATE const char *tdsqlite3Fts3NextToken(const char *, int *);
-SQLITE_PRIVATE int tdsqlite3Fts3InitHashTable(tdsqlite3 *, Fts3Hash *, const char *);
-SQLITE_PRIVATE int tdsqlite3Fts3InitTokenizer(Fts3Hash *pHash, const char *, 
-    tdsqlite3_tokenizer **, char **
-);
-SQLITE_PRIVATE int tdsqlite3Fts3IsIdChar(char);
-
-/* fts3_snippet.c */
-SQLITE_PRIVATE void tdsqlite3Fts3Offsets(tdsqlite3_context*, Fts3Cursor*);
-SQLITE_PRIVATE void tdsqlite3Fts3Snippet(tdsqlite3_context *, Fts3Cursor *, const char *,
-  const char *, const char *, int, int
-);
-SQLITE_PRIVATE void tdsqlite3Fts3Matchinfo(tdsqlite3_context *, Fts3Cursor *, const char *);
-SQLITE_PRIVATE void tdsqlite3Fts3MIBufferFree(MatchinfoBuffer *p);
-
-/* fts3_expr.c */
-SQLITE_PRIVATE int tdsqlite3Fts3ExprParse(tdsqlite3_tokenizer *, int,
-  char **, int, int, int, const char *, int, Fts3Expr **, char **
-);
-SQLITE_PRIVATE void tdsqlite3Fts3ExprFree(Fts3Expr *);
-#ifdef SQLITE_TEST
-SQLITE_PRIVATE int tdsqlite3Fts3ExprInitTestInterface(tdsqlite3 *db, Fts3Hash*);
-SQLITE_PRIVATE int tdsqlite3Fts3InitTerm(tdsqlite3 *db);
-#endif
-
-SQLITE_PRIVATE int tdsqlite3Fts3OpenTokenizer(tdsqlite3_tokenizer *, int, const char *, int,
-  tdsqlite3_tokenizer_cursor **
-);
-
-/* fts3_aux.c */
-SQLITE_PRIVATE int tdsqlite3Fts3InitAux(tdsqlite3 *db);
-
-SQLITE_PRIVATE void tdsqlite3Fts3EvalPhraseCleanup(Fts3Phrase *);
-
-SQLITE_PRIVATE int tdsqlite3Fts3MsrIncrStart(
-    Fts3Table*, Fts3MultiSegReader*, int, const char*, int);
-SQLITE_PRIVATE int tdsqlite3Fts3MsrIncrNext(
-    Fts3Table *, Fts3MultiSegReader *, tdsqlite3_int64 *, char **, int *);
-SQLITE_PRIVATE int tdsqlite3Fts3EvalPhrasePoslist(Fts3Cursor *, Fts3Expr *, int iCol, char **); 
-SQLITE_PRIVATE int tdsqlite3Fts3MsrOvfl(Fts3Cursor *, Fts3MultiSegReader *, int *);
-SQLITE_PRIVATE int tdsqlite3Fts3MsrIncrRestart(Fts3MultiSegReader *pCsr);
-
-/* fts3_tokenize_vtab.c */
-SQLITE_PRIVATE int tdsqlite3Fts3InitTok(tdsqlite3*, Fts3Hash *);
-
-/* fts3_unicode2.c (functions generated by parsing unicode text files) */
-#ifndef SQLITE_DISABLE_FTS3_UNICODE
-SQLITE_PRIVATE int tdsqlite3FtsUnicodeFold(int, int);
-SQLITE_PRIVATE int tdsqlite3FtsUnicodeIsalnum(int);
-SQLITE_PRIVATE int tdsqlite3FtsUnicodeIsdiacritic(int);
-#endif
-
-#endif /* !SQLITE_CORE || SQLITE_ENABLE_FTS3 */
-#endif /* _FTSINT_H */
-
-/************** End of fts3Int.h *********************************************/
-/************** Continuing where we left off in fts3.c ***********************/
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-#if defined(SQLITE_ENABLE_FTS3) && !defined(SQLITE_CORE)
-# define SQLITE_CORE 1
-#endif
-
-/* #include <assert.h> */
-/* #include <stdlib.h> */
-/* #include <stddef.h> */
-/* #include <stdio.h> */
-/* #include <string.h> */
-/* #include <stdarg.h> */
-
-/* #include "fts3.h" */
-#ifndef SQLITE_CORE 
-/* # include "tdsqlite3ext.h" */
-  SQLITE_EXTENSION_INIT1
-#endif
-
-static int fts3EvalNext(Fts3Cursor *pCsr);
-static int fts3EvalStart(Fts3Cursor *pCsr);
-static int fts3TermSegReaderCursor(
-    Fts3Cursor *, const char *, int, int, Fts3MultiSegReader **);
-
-#ifndef SQLITE_AMALGAMATION
-# if defined(SQLITE_DEBUG)
-SQLITE_PRIVATE int tdsqlite3Fts3Always(int b) { assert( b ); return b; }
-SQLITE_PRIVATE int tdsqlite3Fts3Never(int b)  { assert( !b ); return b; }
-# endif
-#endif
-
-/*
-** This variable is set to false when running tests for which the on disk
-** structures should not be corrupt. Otherwise, true. If it is false, extra
-** assert() conditions in the fts3 code are activated - conditions that are
-** only true if it is guaranteed that the fts3 database is not corrupt.
-*/
-SQLITE_API int tdsqlite3_fts3_may_be_corrupt = 1;
-
-/* 
-** Write a 64-bit variable-length integer to memory starting at p[0].
-** The length of data written will be between 1 and FTS3_VARINT_MAX bytes.
-** The number of bytes written is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3PutVarint(char *p, sqlite_int64 v){
-  unsigned char *q = (unsigned char *) p;
-  sqlite_uint64 vu = v;
-  do{
-    *q++ = (unsigned char) ((vu & 0x7f) | 0x80);
-    vu >>= 7;
-  }while( vu!=0 );
-  q[-1] &= 0x7f;  /* turn off high bit in final byte */
-  assert( q - (unsigned char *)p <= FTS3_VARINT_MAX );
-  return (int) (q - (unsigned char *)p);
-}
-
-#define GETVARINT_STEP(v, ptr, shift, mask1, mask2, var, ret) \
-  v = (v & mask1) | ( (*(const unsigned char*)(ptr++)) << shift );  \
-  if( (v & mask2)==0 ){ var = v; return ret; }
-#define GETVARINT_INIT(v, ptr, shift, mask1, mask2, var, ret) \
-  v = (*ptr++);                                               \
-  if( (v & mask2)==0 ){ var = v; return ret; }
-
-SQLITE_PRIVATE int tdsqlite3Fts3GetVarintU(const char *pBuf, sqlite_uint64 *v){
-  const unsigned char *p = (const unsigned char*)pBuf;
-  const unsigned char *pStart = p;
-  u32 a;
-  u64 b;
-  int shift;
-
-  GETVARINT_INIT(a, p, 0,  0x00,     0x80, *v, 1);
-  GETVARINT_STEP(a, p, 7,  0x7F,     0x4000, *v, 2);
-  GETVARINT_STEP(a, p, 14, 0x3FFF,   0x200000, *v, 3);
-  GETVARINT_STEP(a, p, 21, 0x1FFFFF, 0x10000000, *v, 4);
-  b = (a & 0x0FFFFFFF );
-
-  for(shift=28; shift<=63; shift+=7){
-    u64 c = *p++;
-    b += (c&0x7F) << shift;
-    if( (c & 0x80)==0 ) break;
-  }
-  *v = b;
-  return (int)(p - pStart);
-}
-
-/* 
-** Read a 64-bit variable-length integer from memory starting at p[0].
-** Return the number of bytes read, or 0 on error.
-** The value is stored in *v.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3GetVarint(const char *pBuf, sqlite_int64 *v){
-  return tdsqlite3Fts3GetVarintU(pBuf, (tdsqlite3_uint64*)v);
-}
-
-/* 
-** Read a 64-bit variable-length integer from memory starting at p[0] and
-** not extending past pEnd[-1].
-** Return the number of bytes read, or 0 on error.
-** The value is stored in *v.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3GetVarintBounded(
-  const char *pBuf,
-  const char *pEnd,
-  sqlite_int64 *v
-){
-  const unsigned char *p = (const unsigned char*)pBuf;
-  const unsigned char *pStart = p;
-  const unsigned char *pX = (const unsigned char*)pEnd;
-  u64 b = 0;
-  int shift;
-  for(shift=0; shift<=63; shift+=7){
-    u64 c = p<pX ? *p : 0;
-    p++;
-    b += (c&0x7F) << shift;
-    if( (c & 0x80)==0 ) break;
-  }
-  *v = b;
-  return (int)(p - pStart);
-}
-
-/*
-** Similar to tdsqlite3Fts3GetVarint(), except that the output is truncated to 
-** a non-negative 32-bit integer before it is returned.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3GetVarint32(const char *p, int *pi){
-  const unsigned char *ptr = (const unsigned char*)p;
-  u32 a;
-
-#ifndef fts3GetVarint32
-  GETVARINT_INIT(a, ptr, 0,  0x00,     0x80, *pi, 1);
-#else
-  a = (*ptr++);
-  assert( a & 0x80 );
-#endif
-
-  GETVARINT_STEP(a, ptr, 7,  0x7F,     0x4000, *pi, 2);
-  GETVARINT_STEP(a, ptr, 14, 0x3FFF,   0x200000, *pi, 3);
-  GETVARINT_STEP(a, ptr, 21, 0x1FFFFF, 0x10000000, *pi, 4);
-  a = (a & 0x0FFFFFFF );
-  *pi = (int)(a | ((u32)(*ptr & 0x07) << 28));
-  assert( 0==(a & 0x80000000) );
-  assert( *pi>=0 );
-  return 5;
-}
-
-/*
-** Return the number of bytes required to encode v as a varint
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3VarintLen(tdsqlite3_uint64 v){
-  int i = 0;
-  do{
-    i++;
-    v >>= 7;
-  }while( v!=0 );
-  return i;
-}
-
-/*
-** Convert an SQL-style quoted string into a normal string by removing
-** the quote characters.  The conversion is done in-place.  If the
-** input does not begin with a quote character, then this routine
-** is a no-op.
-**
-** Examples:
-**
-**     "abc"   becomes   abc
-**     'xyz'   becomes   xyz
-**     [pqr]   becomes   pqr
-**     `mno`   becomes   mno
-**
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3Dequote(char *z){
-  char quote;                     /* Quote character (if any ) */
-
-  quote = z[0];
-  if( quote=='[' || quote=='\'' || quote=='"' || quote=='`' ){
-    int iIn = 1;                  /* Index of next byte to read from input */
-    int iOut = 0;                 /* Index of next byte to write to output */
-
-    /* If the first byte was a '[', then the close-quote character is a ']' */
-    if( quote=='[' ) quote = ']';  
-
-    while( z[iIn] ){
-      if( z[iIn]==quote ){
-        if( z[iIn+1]!=quote ) break;
-        z[iOut++] = quote;
-        iIn += 2;
-      }else{
-        z[iOut++] = z[iIn++];
-      }
-    }
-    z[iOut] = '\0';
-  }
-}
-
-/*
-** Read a single varint from the doclist at *pp and advance *pp to point
-** to the first byte past the end of the varint.  Add the value of the varint
-** to *pVal.
-*/
-static void fts3GetDeltaVarint(char **pp, tdsqlite3_int64 *pVal){
-  tdsqlite3_int64 iVal;
-  *pp += tdsqlite3Fts3GetVarint(*pp, &iVal);
-  *pVal += iVal;
-}
-
-/*
-** When this function is called, *pp points to the first byte following a
-** varint that is part of a doclist (or position-list, or any other list
-** of varints). This function moves *pp to point to the start of that varint,
-** and sets *pVal by the varint value.
-**
-** Argument pStart points to the first byte of the doclist that the
-** varint is part of.
-*/
-static void fts3GetReverseVarint(
-  char **pp, 
-  char *pStart, 
-  tdsqlite3_int64 *pVal
-){
-  tdsqlite3_int64 iVal;
-  char *p;
-
-  /* Pointer p now points at the first byte past the varint we are 
-  ** interested in. So, unless the doclist is corrupt, the 0x80 bit is
-  ** clear on character p[-1]. */
-  for(p = (*pp)-2; p>=pStart && *p&0x80; p--);
-  p++;
-  *pp = p;
-
-  tdsqlite3Fts3GetVarint(p, &iVal);
-  *pVal = iVal;
-}
-
-/*
-** The xDisconnect() virtual table method.
-*/
-static int fts3DisconnectMethod(tdsqlite3_vtab *pVtab){
-  Fts3Table *p = (Fts3Table *)pVtab;
-  int i;
-
-  assert( p->nPendingData==0 );
-  assert( p->pSegments==0 );
-
-  /* Free any prepared statements held */
-  tdsqlite3_finalize(p->pSeekStmt);
-  for(i=0; i<SizeofArray(p->aStmt); i++){
-    tdsqlite3_finalize(p->aStmt[i]);
-  }
-  tdsqlite3_free(p->zSegmentsTbl);
-  tdsqlite3_free(p->zReadExprlist);
-  tdsqlite3_free(p->zWriteExprlist);
-  tdsqlite3_free(p->zContentTbl);
-  tdsqlite3_free(p->zLanguageid);
-
-  /* Invoke the tokenizer destructor to free the tokenizer. */
-  p->pTokenizer->pModule->xDestroy(p->pTokenizer);
-
-  tdsqlite3_free(p);
-  return SQLITE_OK;
-}
-
-/*
-** Write an error message into *pzErr
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3ErrMsg(char **pzErr, const char *zFormat, ...){
-  va_list ap;
-  tdsqlite3_free(*pzErr);
-  va_start(ap, zFormat);
-  *pzErr = tdsqlite3_vmprintf(zFormat, ap);
-  va_end(ap);
-}
-
-/*
-** Construct one or more SQL statements from the format string given
-** and then evaluate those statements. The success code is written
-** into *pRc.
-**
-** If *pRc is initially non-zero then this routine is a no-op.
-*/
-static void fts3DbExec(
-  int *pRc,              /* Success code */
-  tdsqlite3 *db,           /* Database in which to run SQL */
-  const char *zFormat,   /* Format string for SQL */
-  ...                    /* Arguments to the format string */
-){
-  va_list ap;
-  char *zSql;
-  if( *pRc ) return;
-  va_start(ap, zFormat);
-  zSql = tdsqlite3_vmprintf(zFormat, ap);
-  va_end(ap);
-  if( zSql==0 ){
-    *pRc = SQLITE_NOMEM;
-  }else{
-    *pRc = tdsqlite3_exec(db, zSql, 0, 0, 0);
-    tdsqlite3_free(zSql);
-  }
-}
-
-/*
-** The xDestroy() virtual table method.
-*/
-static int fts3DestroyMethod(tdsqlite3_vtab *pVtab){
-  Fts3Table *p = (Fts3Table *)pVtab;
-  int rc = SQLITE_OK;              /* Return code */
-  const char *zDb = p->zDb;        /* Name of database (e.g. "main", "temp") */
-  tdsqlite3 *db = p->db;             /* Database handle */
-
-  /* Drop the shadow tables */
-  fts3DbExec(&rc, db, 
-    "DROP TABLE IF EXISTS %Q.'%q_segments';"
-    "DROP TABLE IF EXISTS %Q.'%q_segdir';"
-    "DROP TABLE IF EXISTS %Q.'%q_docsize';"
-    "DROP TABLE IF EXISTS %Q.'%q_stat';"
-    "%s DROP TABLE IF EXISTS %Q.'%q_content';",
-    zDb, p->zName,
-    zDb, p->zName,
-    zDb, p->zName,
-    zDb, p->zName,
-    (p->zContentTbl ? "--" : ""), zDb,p->zName
-  );
-
-  /* If everything has worked, invoke fts3DisconnectMethod() to free the
-  ** memory associated with the Fts3Table structure and return SQLITE_OK.
-  ** Otherwise, return an SQLite error code.
-  */
-  return (rc==SQLITE_OK ? fts3DisconnectMethod(pVtab) : rc);
-}
-
-
-/*
-** Invoke tdsqlite3_declare_vtab() to declare the schema for the FTS3 table
-** passed as the first argument. This is done as part of the xConnect()
-** and xCreate() methods.
-**
-** If *pRc is non-zero when this function is called, it is a no-op. 
-** Otherwise, if an error occurs, an SQLite error code is stored in *pRc
-** before returning.
-*/
-static void fts3DeclareVtab(int *pRc, Fts3Table *p){
-  if( *pRc==SQLITE_OK ){
-    int i;                        /* Iterator variable */
-    int rc;                       /* Return code */
-    char *zSql;                   /* SQL statement passed to declare_vtab() */
-    char *zCols;                  /* List of user defined columns */
-    const char *zLanguageid;
-
-    zLanguageid = (p->zLanguageid ? p->zLanguageid : "__langid");
-    tdsqlite3_vtab_config(p->db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1);
-
-    /* Create a list of user columns for the virtual table */
-    zCols = tdsqlite3_mprintf("%Q, ", p->azColumn[0]);
-    for(i=1; zCols && i<p->nColumn; i++){
-      zCols = tdsqlite3_mprintf("%z%Q, ", zCols, p->azColumn[i]);
-    }
-
-    /* Create the whole "CREATE TABLE" statement to pass to SQLite */
-    zSql = tdsqlite3_mprintf(
-        "CREATE TABLE x(%s %Q HIDDEN, docid HIDDEN, %Q HIDDEN)", 
-        zCols, p->zName, zLanguageid
-    );
-    if( !zCols || !zSql ){
-      rc = SQLITE_NOMEM;
-    }else{
-      rc = tdsqlite3_declare_vtab(p->db, zSql);
-    }
-
-    tdsqlite3_free(zSql);
-    tdsqlite3_free(zCols);
-    *pRc = rc;
-  }
-}
-
-/*
-** Create the %_stat table if it does not already exist.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3CreateStatTable(int *pRc, Fts3Table *p){
-  fts3DbExec(pRc, p->db, 
-      "CREATE TABLE IF NOT EXISTS %Q.'%q_stat'"
-          "(id INTEGER PRIMARY KEY, value BLOB);",
-      p->zDb, p->zName
-  );
-  if( (*pRc)==SQLITE_OK ) p->bHasStat = 1;
-}
-
-/*
-** Create the backing store tables (%_content, %_segments and %_segdir)
-** required by the FTS3 table passed as the only argument. This is done
-** as part of the vtab xCreate() method.
-**
-** If the p->bHasDocsize boolean is true (indicating that this is an
-** FTS4 table, not an FTS3 table) then also create the %_docsize and
-** %_stat tables required by FTS4.
-*/
-static int fts3CreateTables(Fts3Table *p){
-  int rc = SQLITE_OK;             /* Return code */
-  int i;                          /* Iterator variable */
-  tdsqlite3 *db = p->db;            /* The database connection */
-
-  if( p->zContentTbl==0 ){
-    const char *zLanguageid = p->zLanguageid;
-    char *zContentCols;           /* Columns of %_content table */
-
-    /* Create a list of user columns for the content table */
-    zContentCols = tdsqlite3_mprintf("docid INTEGER PRIMARY KEY");
-    for(i=0; zContentCols && i<p->nColumn; i++){
-      char *z = p->azColumn[i];
-      zContentCols = tdsqlite3_mprintf("%z, 'c%d%q'", zContentCols, i, z);
-    }
-    if( zLanguageid && zContentCols ){
-      zContentCols = tdsqlite3_mprintf("%z, langid", zContentCols, zLanguageid);
-    }
-    if( zContentCols==0 ) rc = SQLITE_NOMEM;
-  
-    /* Create the content table */
-    fts3DbExec(&rc, db, 
-       "CREATE TABLE %Q.'%q_content'(%s)",
-       p->zDb, p->zName, zContentCols
-    );
-    tdsqlite3_free(zContentCols);
-  }
-
-  /* Create other tables */
-  fts3DbExec(&rc, db, 
-      "CREATE TABLE %Q.'%q_segments'(blockid INTEGER PRIMARY KEY, block BLOB);",
-      p->zDb, p->zName
-  );
-  fts3DbExec(&rc, db, 
-      "CREATE TABLE %Q.'%q_segdir'("
-        "level INTEGER,"
-        "idx INTEGER,"
-        "start_block INTEGER,"
-        "leaves_end_block INTEGER,"
-        "end_block INTEGER,"
-        "root BLOB,"
-        "PRIMARY KEY(level, idx)"
-      ");",
-      p->zDb, p->zName
-  );
-  if( p->bHasDocsize ){
-    fts3DbExec(&rc, db, 
-        "CREATE TABLE %Q.'%q_docsize'(docid INTEGER PRIMARY KEY, size BLOB);",
-        p->zDb, p->zName
-    );
-  }
-  assert( p->bHasStat==p->bFts4 );
-  if( p->bHasStat ){
-    tdsqlite3Fts3CreateStatTable(&rc, p);
-  }
-  return rc;
-}
-
-/*
-** Store the current database page-size in bytes in p->nPgsz.
-**
-** If *pRc is non-zero when this function is called, it is a no-op. 
-** Otherwise, if an error occurs, an SQLite error code is stored in *pRc
-** before returning.
-*/
-static void fts3DatabasePageSize(int *pRc, Fts3Table *p){
-  if( *pRc==SQLITE_OK ){
-    int rc;                       /* Return code */
-    char *zSql;                   /* SQL text "PRAGMA %Q.page_size" */
-    tdsqlite3_stmt *pStmt;          /* Compiled "PRAGMA %Q.page_size" statement */
-  
-    zSql = tdsqlite3_mprintf("PRAGMA %Q.page_size", p->zDb);
-    if( !zSql ){
-      rc = SQLITE_NOMEM;
-    }else{
-      rc = tdsqlite3_prepare(p->db, zSql, -1, &pStmt, 0);
-      if( rc==SQLITE_OK ){
-        tdsqlite3_step(pStmt);
-        p->nPgsz = tdsqlite3_column_int(pStmt, 0);
-        rc = tdsqlite3_finalize(pStmt);
-      }else if( rc==SQLITE_AUTH ){
-        p->nPgsz = 1024;
-        rc = SQLITE_OK;
-      }
-    }
-    assert( p->nPgsz>0 || rc!=SQLITE_OK );
-    tdsqlite3_free(zSql);
-    *pRc = rc;
-  }
-}
-
-/*
-** "Special" FTS4 arguments are column specifications of the following form:
-**
-**   <key> = <value>
-**
-** There may not be whitespace surrounding the "=" character. The <value> 
-** term may be quoted, but the <key> may not.
-*/
-static int fts3IsSpecialColumn(
-  const char *z, 
-  int *pnKey,
-  char **pzValue
-){
-  char *zValue;
-  const char *zCsr = z;
-
-  while( *zCsr!='=' ){
-    if( *zCsr=='\0' ) return 0;
-    zCsr++;
-  }
-
-  *pnKey = (int)(zCsr-z);
-  zValue = tdsqlite3_mprintf("%s", &zCsr[1]);
-  if( zValue ){
-    tdsqlite3Fts3Dequote(zValue);
-  }
-  *pzValue = zValue;
-  return 1;
-}
-
-/*
-** Append the output of a printf() style formatting to an existing string.
-*/
-static void fts3Appendf(
-  int *pRc,                       /* IN/OUT: Error code */
-  char **pz,                      /* IN/OUT: Pointer to string buffer */
-  const char *zFormat,            /* Printf format string to append */
-  ...                             /* Arguments for printf format string */
-){
-  if( *pRc==SQLITE_OK ){
-    va_list ap;
-    char *z;
-    va_start(ap, zFormat);
-    z = tdsqlite3_vmprintf(zFormat, ap);
-    va_end(ap);
-    if( z && *pz ){
-      char *z2 = tdsqlite3_mprintf("%s%s", *pz, z);
-      tdsqlite3_free(z);
-      z = z2;
-    }
-    if( z==0 ) *pRc = SQLITE_NOMEM;
-    tdsqlite3_free(*pz);
-    *pz = z;
-  }
-}
-
-/*
-** Return a copy of input string zInput enclosed in double-quotes (") and
-** with all double quote characters escaped. For example:
-**
-**     fts3QuoteId("un \"zip\"")   ->    "un \"\"zip\"\""
-**
-** The pointer returned points to memory obtained from tdsqlite3_malloc(). It
-** is the callers responsibility to call tdsqlite3_free() to release this
-** memory.
-*/
-static char *fts3QuoteId(char const *zInput){
-  tdsqlite3_int64 nRet;
-  char *zRet;
-  nRet = 2 + (int)strlen(zInput)*2 + 1;
-  zRet = tdsqlite3_malloc64(nRet);
-  if( zRet ){
-    int i;
-    char *z = zRet;
-    *(z++) = '"';
-    for(i=0; zInput[i]; i++){
-      if( zInput[i]=='"' ) *(z++) = '"';
-      *(z++) = zInput[i];
-    }
-    *(z++) = '"';
-    *(z++) = '\0';
-  }
-  return zRet;
-}
-
-/*
-** Return a list of comma separated SQL expressions and a FROM clause that 
-** could be used in a SELECT statement such as the following:
-**
-**     SELECT <list of expressions> FROM %_content AS x ...
-**
-** to return the docid, followed by each column of text data in order
-** from left to write. If parameter zFunc is not NULL, then instead of
-** being returned directly each column of text data is passed to an SQL
-** function named zFunc first. For example, if zFunc is "unzip" and the
-** table has the three user-defined columns "a", "b", and "c", the following
-** string is returned:
-**
-**     "docid, unzip(x.'a'), unzip(x.'b'), unzip(x.'c') FROM %_content AS x"
-**
-** The pointer returned points to a buffer allocated by tdsqlite3_malloc(). It
-** is the responsibility of the caller to eventually free it.
-**
-** If *pRc is not SQLITE_OK when this function is called, it is a no-op (and
-** a NULL pointer is returned). Otherwise, if an OOM error is encountered
-** by this function, NULL is returned and *pRc is set to SQLITE_NOMEM. If
-** no error occurs, *pRc is left unmodified.
-*/
-static char *fts3ReadExprList(Fts3Table *p, const char *zFunc, int *pRc){
-  char *zRet = 0;
-  char *zFree = 0;
-  char *zFunction;
-  int i;
-
-  if( p->zContentTbl==0 ){
-    if( !zFunc ){
-      zFunction = "";
-    }else{
-      zFree = zFunction = fts3QuoteId(zFunc);
-    }
-    fts3Appendf(pRc, &zRet, "docid");
-    for(i=0; i<p->nColumn; i++){
-      fts3Appendf(pRc, &zRet, ",%s(x.'c%d%q')", zFunction, i, p->azColumn[i]);
-    }
-    if( p->zLanguageid ){
-      fts3Appendf(pRc, &zRet, ", x.%Q", "langid");
-    }
-    tdsqlite3_free(zFree);
-  }else{
-    fts3Appendf(pRc, &zRet, "rowid");
-    for(i=0; i<p->nColumn; i++){
-      fts3Appendf(pRc, &zRet, ", x.'%q'", p->azColumn[i]);
-    }
-    if( p->zLanguageid ){
-      fts3Appendf(pRc, &zRet, ", x.%Q", p->zLanguageid);
-    }
-  }
-  fts3Appendf(pRc, &zRet, " FROM '%q'.'%q%s' AS x", 
-      p->zDb,
-      (p->zContentTbl ? p->zContentTbl : p->zName),
-      (p->zContentTbl ? "" : "_content")
-  );
-  return zRet;
-}
-
-/*
-** Return a list of N comma separated question marks, where N is the number
-** of columns in the %_content table (one for the docid plus one for each
-** user-defined text column).
-**
-** If argument zFunc is not NULL, then all but the first question mark
-** is preceded by zFunc and an open bracket, and followed by a closed
-** bracket. For example, if zFunc is "zip" and the FTS3 table has three 
-** user-defined text columns, the following string is returned:
-**
-**     "?, zip(?), zip(?), zip(?)"
-**
-** The pointer returned points to a buffer allocated by tdsqlite3_malloc(). It
-** is the responsibility of the caller to eventually free it.
-**
-** If *pRc is not SQLITE_OK when this function is called, it is a no-op (and
-** a NULL pointer is returned). Otherwise, if an OOM error is encountered
-** by this function, NULL is returned and *pRc is set to SQLITE_NOMEM. If
-** no error occurs, *pRc is left unmodified.
-*/
-static char *fts3WriteExprList(Fts3Table *p, const char *zFunc, int *pRc){
-  char *zRet = 0;
-  char *zFree = 0;
-  char *zFunction;
-  int i;
-
-  if( !zFunc ){
-    zFunction = "";
-  }else{
-    zFree = zFunction = fts3QuoteId(zFunc);
-  }
-  fts3Appendf(pRc, &zRet, "?");
-  for(i=0; i<p->nColumn; i++){
-    fts3Appendf(pRc, &zRet, ",%s(?)", zFunction);
-  }
-  if( p->zLanguageid ){
-    fts3Appendf(pRc, &zRet, ", ?");
-  }
-  tdsqlite3_free(zFree);
-  return zRet;
-}
-
-/*
-** This function interprets the string at (*pp) as a non-negative integer
-** value. It reads the integer and sets *pnOut to the value read, then 
-** sets *pp to point to the byte immediately following the last byte of
-** the integer value.
-**
-** Only decimal digits ('0'..'9') may be part of an integer value. 
-**
-** If *pp does not being with a decimal digit SQLITE_ERROR is returned and
-** the output value undefined. Otherwise SQLITE_OK is returned.
-**
-** This function is used when parsing the "prefix=" FTS4 parameter.
-*/
-static int fts3GobbleInt(const char **pp, int *pnOut){
-  const int MAX_NPREFIX = 10000000;
-  const char *p;                  /* Iterator pointer */
-  int nInt = 0;                   /* Output value */
-
-  for(p=*pp; p[0]>='0' && p[0]<='9'; p++){
-    nInt = nInt * 10 + (p[0] - '0');
-    if( nInt>MAX_NPREFIX ){
-      nInt = 0;
-      break;
-    }
-  }
-  if( p==*pp ) return SQLITE_ERROR;
-  *pnOut = nInt;
-  *pp = p;
-  return SQLITE_OK;
-}
-
-/*
-** This function is called to allocate an array of Fts3Index structures
-** representing the indexes maintained by the current FTS table. FTS tables
-** always maintain the main "terms" index, but may also maintain one or
-** more "prefix" indexes, depending on the value of the "prefix=" parameter
-** (if any) specified as part of the CREATE VIRTUAL TABLE statement.
-**
-** Argument zParam is passed the value of the "prefix=" option if one was
-** specified, or NULL otherwise.
-**
-** If no error occurs, SQLITE_OK is returned and *apIndex set to point to
-** the allocated array. *pnIndex is set to the number of elements in the
-** array. If an error does occur, an SQLite error code is returned.
-**
-** Regardless of whether or not an error is returned, it is the responsibility
-** of the caller to call tdsqlite3_free() on the output array to free it.
-*/
-static int fts3PrefixParameter(
-  const char *zParam,             /* ABC in prefix=ABC parameter to parse */
-  int *pnIndex,                   /* OUT: size of *apIndex[] array */
-  struct Fts3Index **apIndex      /* OUT: Array of indexes for this table */
-){
-  struct Fts3Index *aIndex;       /* Allocated array */
-  int nIndex = 1;                 /* Number of entries in array */
-
-  if( zParam && zParam[0] ){
-    const char *p;
-    nIndex++;
-    for(p=zParam; *p; p++){
-      if( *p==',' ) nIndex++;
-    }
-  }
-
-  aIndex = tdsqlite3_malloc64(sizeof(struct Fts3Index) * nIndex);
-  *apIndex = aIndex;
-  if( !aIndex ){
-    return SQLITE_NOMEM;
-  }
-
-  memset(aIndex, 0, sizeof(struct Fts3Index) * nIndex);
-  if( zParam ){
-    const char *p = zParam;
-    int i;
-    for(i=1; i<nIndex; i++){
-      int nPrefix = 0;
-      if( fts3GobbleInt(&p, &nPrefix) ) return SQLITE_ERROR;
-      assert( nPrefix>=0 );
-      if( nPrefix==0 ){
-        nIndex--;
-        i--;
-      }else{
-        aIndex[i].nPrefix = nPrefix;
-      }
-      p++;
-    }
-  }
-
-  *pnIndex = nIndex;
-  return SQLITE_OK;
-}
-
-/*
-** This function is called when initializing an FTS4 table that uses the
-** content=xxx option. It determines the number of and names of the columns
-** of the new FTS4 table.
-**
-** The third argument passed to this function is the value passed to the
-** config=xxx option (i.e. "xxx"). This function queries the database for
-** a table of that name. If found, the output variables are populated
-** as follows:
-**
-**   *pnCol:   Set to the number of columns table xxx has,
-**
-**   *pnStr:   Set to the total amount of space required to store a copy
-**             of each columns name, including the nul-terminator.
-**
-**   *pazCol:  Set to point to an array of *pnCol strings. Each string is
-**             the name of the corresponding column in table xxx. The array
-**             and its contents are allocated using a single allocation. It
-**             is the responsibility of the caller to free this allocation
-**             by eventually passing the *pazCol value to tdsqlite3_free().
-**
-** If the table cannot be found, an error code is returned and the output
-** variables are undefined. Or, if an OOM is encountered, SQLITE_NOMEM is
-** returned (and the output variables are undefined).
-*/
-static int fts3ContentColumns(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Name of db (i.e. "main", "temp" etc.) */
-  const char *zTbl,               /* Name of content table */
-  const char ***pazCol,           /* OUT: Malloc'd array of column names */
-  int *pnCol,                     /* OUT: Size of array *pazCol */
-  int *pnStr,                     /* OUT: Bytes of string content */
-  char **pzErr                    /* OUT: error message */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  char *zSql;                     /* "SELECT *" statement on zTbl */  
-  tdsqlite3_stmt *pStmt = 0;        /* Compiled version of zSql */
-
-  zSql = tdsqlite3_mprintf("SELECT * FROM %Q.%Q", zDb, zTbl);
-  if( !zSql ){
-    rc = SQLITE_NOMEM;
-  }else{
-    rc = tdsqlite3_prepare(db, zSql, -1, &pStmt, 0);
-    if( rc!=SQLITE_OK ){
-      tdsqlite3Fts3ErrMsg(pzErr, "%s", tdsqlite3_errmsg(db));
-    }
-  }
-  tdsqlite3_free(zSql);
-
-  if( rc==SQLITE_OK ){
-    const char **azCol;           /* Output array */
-    tdsqlite3_int64 nStr = 0;       /* Size of all column names (incl. 0x00) */
-    int nCol;                     /* Number of table columns */
-    int i;                        /* Used to iterate through columns */
-
-    /* Loop through the returned columns. Set nStr to the number of bytes of
-    ** space required to store a copy of each column name, including the
-    ** nul-terminator byte.  */
-    nCol = tdsqlite3_column_count(pStmt);
-    for(i=0; i<nCol; i++){
-      const char *zCol = tdsqlite3_column_name(pStmt, i);
-      nStr += strlen(zCol) + 1;
-    }
-
-    /* Allocate and populate the array to return. */
-    azCol = (const char **)tdsqlite3_malloc64(sizeof(char *) * nCol + nStr);
-    if( azCol==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      char *p = (char *)&azCol[nCol];
-      for(i=0; i<nCol; i++){
-        const char *zCol = tdsqlite3_column_name(pStmt, i);
-        int n = (int)strlen(zCol)+1;
-        memcpy(p, zCol, n);
-        azCol[i] = p;
-        p += n;
-      }
-    }
-    tdsqlite3_finalize(pStmt);
-
-    /* Set the output variables. */
-    *pnCol = nCol;
-    *pnStr = nStr;
-    *pazCol = azCol;
-  }
-
-  return rc;
-}
-
-/*
-** This function is the implementation of both the xConnect and xCreate
-** methods of the FTS3 virtual table.
-**
-** The argv[] array contains the following:
-**
-**   argv[0]   -> module name  ("fts3" or "fts4")
-**   argv[1]   -> database name
-**   argv[2]   -> table name
-**   argv[...] -> "column name" and other module argument fields.
-*/
-static int fts3InitVtab(
-  int isCreate,                   /* True for xCreate, false for xConnect */
-  tdsqlite3 *db,                    /* The SQLite database connection */
-  void *pAux,                     /* Hash table containing tokenizers */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVTab,          /* Write the resulting vtab structure here */
-  char **pzErr                    /* Write any error message here */
-){
-  Fts3Hash *pHash = (Fts3Hash *)pAux;
-  Fts3Table *p = 0;               /* Pointer to allocated vtab */
-  int rc = SQLITE_OK;             /* Return code */
-  int i;                          /* Iterator variable */
-  tdsqlite3_int64 nByte;            /* Size of allocation used for *p */
-  int iCol;                       /* Column index */
-  int nString = 0;                /* Bytes required to hold all column names */
-  int nCol = 0;                   /* Number of columns in the FTS table */
-  char *zCsr;                     /* Space for holding column names */
-  int nDb;                        /* Bytes required to hold database name */
-  int nName;                      /* Bytes required to hold table name */
-  int isFts4 = (argv[0][3]=='4'); /* True for FTS4, false for FTS3 */
-  const char **aCol;              /* Array of column names */
-  tdsqlite3_tokenizer *pTokenizer = 0;        /* Tokenizer for this table */
-
-  int nIndex = 0;                 /* Size of aIndex[] array */
-  struct Fts3Index *aIndex = 0;   /* Array of indexes for this table */
-
-  /* The results of parsing supported FTS4 key=value options: */
-  int bNoDocsize = 0;             /* True to omit %_docsize table */
-  int bDescIdx = 0;               /* True to store descending indexes */
-  char *zPrefix = 0;              /* Prefix parameter value (or NULL) */
-  char *zCompress = 0;            /* compress=? parameter (or NULL) */
-  char *zUncompress = 0;          /* uncompress=? parameter (or NULL) */
-  char *zContent = 0;             /* content=? parameter (or NULL) */
-  char *zLanguageid = 0;          /* languageid=? parameter (or NULL) */
-  char **azNotindexed = 0;        /* The set of notindexed= columns */
-  int nNotindexed = 0;            /* Size of azNotindexed[] array */
-
-  assert( strlen(argv[0])==4 );
-  assert( (tdsqlite3_strnicmp(argv[0], "fts4", 4)==0 && isFts4)
-       || (tdsqlite3_strnicmp(argv[0], "fts3", 4)==0 && !isFts4)
-  );
-
-  nDb = (int)strlen(argv[1]) + 1;
-  nName = (int)strlen(argv[2]) + 1;
-
-  nByte = sizeof(const char *) * (argc-2);
-  aCol = (const char **)tdsqlite3_malloc64(nByte);
-  if( aCol ){
-    memset((void*)aCol, 0, nByte);
-    azNotindexed = (char **)tdsqlite3_malloc64(nByte);
-  }
-  if( azNotindexed ){
-    memset(azNotindexed, 0, nByte);
-  }
-  if( !aCol || !azNotindexed ){
-    rc = SQLITE_NOMEM;
-    goto fts3_init_out;
-  }
-
-  /* Loop through all of the arguments passed by the user to the FTS3/4
-  ** module (i.e. all the column names and special arguments). This loop
-  ** does the following:
-  **
-  **   + Figures out the number of columns the FTSX table will have, and
-  **     the number of bytes of space that must be allocated to store copies
-  **     of the column names.
-  **
-  **   + If there is a tokenizer specification included in the arguments,
-  **     initializes the tokenizer pTokenizer.
-  */
-  for(i=3; rc==SQLITE_OK && i<argc; i++){
-    char const *z = argv[i];
-    int nKey;
-    char *zVal;
-
-    /* Check if this is a tokenizer specification */
-    if( !pTokenizer 
-     && strlen(z)>8
-     && 0==tdsqlite3_strnicmp(z, "tokenize", 8) 
-     && 0==tdsqlite3Fts3IsIdChar(z[8])
-    ){
-      rc = tdsqlite3Fts3InitTokenizer(pHash, &z[9], &pTokenizer, pzErr);
-    }
-
-    /* Check if it is an FTS4 special argument. */
-    else if( isFts4 && fts3IsSpecialColumn(z, &nKey, &zVal) ){
-      struct Fts4Option {
-        const char *zOpt;
-        int nOpt;
-      } aFts4Opt[] = {
-        { "matchinfo",   9 },     /* 0 -> MATCHINFO */
-        { "prefix",      6 },     /* 1 -> PREFIX */
-        { "compress",    8 },     /* 2 -> COMPRESS */
-        { "uncompress", 10 },     /* 3 -> UNCOMPRESS */
-        { "order",       5 },     /* 4 -> ORDER */
-        { "content",     7 },     /* 5 -> CONTENT */
-        { "languageid", 10 },     /* 6 -> LANGUAGEID */
-        { "notindexed", 10 }      /* 7 -> NOTINDEXED */
-      };
-
-      int iOpt;
-      if( !zVal ){
-        rc = SQLITE_NOMEM;
-      }else{
-        for(iOpt=0; iOpt<SizeofArray(aFts4Opt); iOpt++){
-          struct Fts4Option *pOp = &aFts4Opt[iOpt];
-          if( nKey==pOp->nOpt && !tdsqlite3_strnicmp(z, pOp->zOpt, pOp->nOpt) ){
-            break;
-          }
-        }
-        switch( iOpt ){
-          case 0:               /* MATCHINFO */
-            if( strlen(zVal)!=4 || tdsqlite3_strnicmp(zVal, "fts3", 4) ){
-              tdsqlite3Fts3ErrMsg(pzErr, "unrecognized matchinfo: %s", zVal);
-              rc = SQLITE_ERROR;
-            }
-            bNoDocsize = 1;
-            break;
-
-          case 1:               /* PREFIX */
-            tdsqlite3_free(zPrefix);
-            zPrefix = zVal;
-            zVal = 0;
-            break;
-
-          case 2:               /* COMPRESS */
-            tdsqlite3_free(zCompress);
-            zCompress = zVal;
-            zVal = 0;
-            break;
-
-          case 3:               /* UNCOMPRESS */
-            tdsqlite3_free(zUncompress);
-            zUncompress = zVal;
-            zVal = 0;
-            break;
-
-          case 4:               /* ORDER */
-            if( (strlen(zVal)!=3 || tdsqlite3_strnicmp(zVal, "asc", 3)) 
-             && (strlen(zVal)!=4 || tdsqlite3_strnicmp(zVal, "desc", 4)) 
-            ){
-              tdsqlite3Fts3ErrMsg(pzErr, "unrecognized order: %s", zVal);
-              rc = SQLITE_ERROR;
-            }
-            bDescIdx = (zVal[0]=='d' || zVal[0]=='D');
-            break;
-
-          case 5:              /* CONTENT */
-            tdsqlite3_free(zContent);
-            zContent = zVal;
-            zVal = 0;
-            break;
-
-          case 6:              /* LANGUAGEID */
-            assert( iOpt==6 );
-            tdsqlite3_free(zLanguageid);
-            zLanguageid = zVal;
-            zVal = 0;
-            break;
-
-          case 7:              /* NOTINDEXED */
-            azNotindexed[nNotindexed++] = zVal;
-            zVal = 0;
-            break;
-
-          default:
-            assert( iOpt==SizeofArray(aFts4Opt) );
-            tdsqlite3Fts3ErrMsg(pzErr, "unrecognized parameter: %s", z);
-            rc = SQLITE_ERROR;
-            break;
-        }
-        tdsqlite3_free(zVal);
-      }
-    }
-
-    /* Otherwise, the argument is a column name. */
-    else {
-      nString += (int)(strlen(z) + 1);
-      aCol[nCol++] = z;
-    }
-  }
-
-  /* If a content=xxx option was specified, the following:
-  **
-  **   1. Ignore any compress= and uncompress= options.
-  **
-  **   2. If no column names were specified as part of the CREATE VIRTUAL
-  **      TABLE statement, use all columns from the content table.
-  */
-  if( rc==SQLITE_OK && zContent ){
-    tdsqlite3_free(zCompress); 
-    tdsqlite3_free(zUncompress); 
-    zCompress = 0;
-    zUncompress = 0;
-    if( nCol==0 ){
-      tdsqlite3_free((void*)aCol); 
-      aCol = 0;
-      rc = fts3ContentColumns(db, argv[1], zContent,&aCol,&nCol,&nString,pzErr);
-
-      /* If a languageid= option was specified, remove the language id
-      ** column from the aCol[] array. */ 
-      if( rc==SQLITE_OK && zLanguageid ){
-        int j;
-        for(j=0; j<nCol; j++){
-          if( tdsqlite3_stricmp(zLanguageid, aCol[j])==0 ){
-            int k;
-            for(k=j; k<nCol; k++) aCol[k] = aCol[k+1];
-            nCol--;
-            break;
-          }
-        }
-      }
-    }
-  }
-  if( rc!=SQLITE_OK ) goto fts3_init_out;
-
-  if( nCol==0 ){
-    assert( nString==0 );
-    aCol[0] = "content";
-    nString = 8;
-    nCol = 1;
-  }
-
-  if( pTokenizer==0 ){
-    rc = tdsqlite3Fts3InitTokenizer(pHash, "simple", &pTokenizer, pzErr);
-    if( rc!=SQLITE_OK ) goto fts3_init_out;
-  }
-  assert( pTokenizer );
-
-  rc = fts3PrefixParameter(zPrefix, &nIndex, &aIndex);
-  if( rc==SQLITE_ERROR ){
-    assert( zPrefix );
-    tdsqlite3Fts3ErrMsg(pzErr, "error parsing prefix parameter: %s", zPrefix);
-  }
-  if( rc!=SQLITE_OK ) goto fts3_init_out;
-
-  /* Allocate and populate the Fts3Table structure. */
-  nByte = sizeof(Fts3Table) +                  /* Fts3Table */
-          nCol * sizeof(char *) +              /* azColumn */
-          nIndex * sizeof(struct Fts3Index) +  /* aIndex */
-          nCol * sizeof(u8) +                  /* abNotindexed */
-          nName +                              /* zName */
-          nDb +                                /* zDb */
-          nString;                             /* Space for azColumn strings */
-  p = (Fts3Table*)tdsqlite3_malloc64(nByte);
-  if( p==0 ){
-    rc = SQLITE_NOMEM;
-    goto fts3_init_out;
-  }
-  memset(p, 0, nByte);
-  p->db = db;
-  p->nColumn = nCol;
-  p->nPendingData = 0;
-  p->azColumn = (char **)&p[1];
-  p->pTokenizer = pTokenizer;
-  p->nMaxPendingData = FTS3_MAX_PENDING_DATA;
-  p->bHasDocsize = (isFts4 && bNoDocsize==0);
-  p->bHasStat = (u8)isFts4;
-  p->bFts4 = (u8)isFts4;
-  p->bDescIdx = (u8)bDescIdx;
-  p->nAutoincrmerge = 0xff;   /* 0xff means setting unknown */
-  p->zContentTbl = zContent;
-  p->zLanguageid = zLanguageid;
-  zContent = 0;
-  zLanguageid = 0;
-  TESTONLY( p->inTransaction = -1 );
-  TESTONLY( p->mxSavepoint = -1 );
-
-  p->aIndex = (struct Fts3Index *)&p->azColumn[nCol];
-  memcpy(p->aIndex, aIndex, sizeof(struct Fts3Index) * nIndex);
-  p->nIndex = nIndex;
-  for(i=0; i<nIndex; i++){
-    fts3HashInit(&p->aIndex[i].hPending, FTS3_HASH_STRING, 1);
-  }
-  p->abNotindexed = (u8 *)&p->aIndex[nIndex];
-
-  /* Fill in the zName and zDb fields of the vtab structure. */
-  zCsr = (char *)&p->abNotindexed[nCol];
-  p->zName = zCsr;
-  memcpy(zCsr, argv[2], nName);
-  zCsr += nName;
-  p->zDb = zCsr;
-  memcpy(zCsr, argv[1], nDb);
-  zCsr += nDb;
-
-  /* Fill in the azColumn array */
-  for(iCol=0; iCol<nCol; iCol++){
-    char *z; 
-    int n = 0;
-    z = (char *)tdsqlite3Fts3NextToken(aCol[iCol], &n);
-    if( n>0 ){
-      memcpy(zCsr, z, n);
-    }
-    zCsr[n] = '\0';
-    tdsqlite3Fts3Dequote(zCsr);
-    p->azColumn[iCol] = zCsr;
-    zCsr += n+1;
-    assert( zCsr <= &((char *)p)[nByte] );
-  }
-
-  /* Fill in the abNotindexed array */
-  for(iCol=0; iCol<nCol; iCol++){
-    int n = (int)strlen(p->azColumn[iCol]);
-    for(i=0; i<nNotindexed; i++){
-      char *zNot = azNotindexed[i];
-      if( zNot && n==(int)strlen(zNot)
-       && 0==tdsqlite3_strnicmp(p->azColumn[iCol], zNot, n) 
-      ){
-        p->abNotindexed[iCol] = 1;
-        tdsqlite3_free(zNot);
-        azNotindexed[i] = 0;
-      }
-    }
-  }
-  for(i=0; i<nNotindexed; i++){
-    if( azNotindexed[i] ){
-      tdsqlite3Fts3ErrMsg(pzErr, "no such column: %s", azNotindexed[i]);
-      rc = SQLITE_ERROR;
-    }
-  }
-
-  if( rc==SQLITE_OK && (zCompress==0)!=(zUncompress==0) ){
-    char const *zMiss = (zCompress==0 ? "compress" : "uncompress");
-    rc = SQLITE_ERROR;
-    tdsqlite3Fts3ErrMsg(pzErr, "missing %s parameter in fts4 constructor", zMiss);
-  }
-  p->zReadExprlist = fts3ReadExprList(p, zUncompress, &rc);
-  p->zWriteExprlist = fts3WriteExprList(p, zCompress, &rc);
-  if( rc!=SQLITE_OK ) goto fts3_init_out;
-
-  /* If this is an xCreate call, create the underlying tables in the 
-  ** database. TODO: For xConnect(), it could verify that said tables exist.
-  */
-  if( isCreate ){
-    rc = fts3CreateTables(p);
-  }
-
-  /* Check to see if a legacy fts3 table has been "upgraded" by the
-  ** addition of a %_stat table so that it can use incremental merge.
-  */
-  if( !isFts4 && !isCreate ){
-    p->bHasStat = 2;
-  }
-
-  /* Figure out the page-size for the database. This is required in order to
-  ** estimate the cost of loading large doclists from the database.  */
-  fts3DatabasePageSize(&rc, p);
-  p->nNodeSize = p->nPgsz-35;
-
-#if defined(SQLITE_DEBUG)||defined(SQLITE_TEST)
-  p->nMergeCount = FTS3_MERGE_COUNT;
-#endif
-
-  /* Declare the table schema to SQLite. */
-  fts3DeclareVtab(&rc, p);
-
-fts3_init_out:
-  tdsqlite3_free(zPrefix);
-  tdsqlite3_free(aIndex);
-  tdsqlite3_free(zCompress);
-  tdsqlite3_free(zUncompress);
-  tdsqlite3_free(zContent);
-  tdsqlite3_free(zLanguageid);
-  for(i=0; i<nNotindexed; i++) tdsqlite3_free(azNotindexed[i]);
-  tdsqlite3_free((void *)aCol);
-  tdsqlite3_free((void *)azNotindexed);
-  if( rc!=SQLITE_OK ){
-    if( p ){
-      fts3DisconnectMethod((tdsqlite3_vtab *)p);
-    }else if( pTokenizer ){
-      pTokenizer->pModule->xDestroy(pTokenizer);
-    }
-  }else{
-    assert( p->pSegments==0 );
-    *ppVTab = &p->base;
-  }
-  return rc;
-}
-
-/*
-** The xConnect() and xCreate() methods for the virtual table. All the
-** work is done in function fts3InitVtab().
-*/
-static int fts3ConnectMethod(
-  tdsqlite3 *db,                    /* Database connection */
-  void *pAux,                     /* Pointer to tokenizer hash table */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVtab,          /* OUT: New tdsqlite3_vtab object */
-  char **pzErr                    /* OUT: tdsqlite3_malloc'd error message */
-){
-  return fts3InitVtab(0, db, pAux, argc, argv, ppVtab, pzErr);
-}
-static int fts3CreateMethod(
-  tdsqlite3 *db,                    /* Database connection */
-  void *pAux,                     /* Pointer to tokenizer hash table */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVtab,          /* OUT: New tdsqlite3_vtab object */
-  char **pzErr                    /* OUT: tdsqlite3_malloc'd error message */
-){
-  return fts3InitVtab(1, db, pAux, argc, argv, ppVtab, pzErr);
-}
-
-/*
-** Set the pIdxInfo->estimatedRows variable to nRow. Unless this
-** extension is currently being used by a version of SQLite too old to
-** support estimatedRows. In that case this function is a no-op.
-*/
-static void fts3SetEstimatedRows(tdsqlite3_index_info *pIdxInfo, i64 nRow){
-#if SQLITE_VERSION_NUMBER>=3008002
-  if( tdsqlite3_libversion_number()>=3008002 ){
-    pIdxInfo->estimatedRows = nRow;
-  }
-#endif
-}
-
-/*
-** Set the SQLITE_INDEX_SCAN_UNIQUE flag in pIdxInfo->flags. Unless this
-** extension is currently being used by a version of SQLite too old to
-** support index-info flags. In that case this function is a no-op.
-*/
-static void fts3SetUniqueFlag(tdsqlite3_index_info *pIdxInfo){
-#if SQLITE_VERSION_NUMBER>=3008012
-  if( tdsqlite3_libversion_number()>=3008012 ){
-    pIdxInfo->idxFlags |= SQLITE_INDEX_SCAN_UNIQUE;
-  }
-#endif
-}
-
-/* 
-** Implementation of the xBestIndex method for FTS3 tables. There
-** are three possible strategies, in order of preference:
-**
-**   1. Direct lookup by rowid or docid. 
-**   2. Full-text search using a MATCH operator on a non-docid column.
-**   3. Linear scan of %_content table.
-*/
-static int fts3BestIndexMethod(tdsqlite3_vtab *pVTab, tdsqlite3_index_info *pInfo){
-  Fts3Table *p = (Fts3Table *)pVTab;
-  int i;                          /* Iterator variable */
-  int iCons = -1;                 /* Index of constraint to use */
-
-  int iLangidCons = -1;           /* Index of langid=x constraint, if present */
-  int iDocidGe = -1;              /* Index of docid>=x constraint, if present */
-  int iDocidLe = -1;              /* Index of docid<=x constraint, if present */
-  int iIdx;
-
-  if( p->bLock ){
-    return SQLITE_ERROR;
-  }
-
-  /* By default use a full table scan. This is an expensive option,
-  ** so search through the constraints to see if a more efficient 
-  ** strategy is possible.
-  */
-  pInfo->idxNum = FTS3_FULLSCAN_SEARCH;
-  pInfo->estimatedCost = 5000000;
-  for(i=0; i<pInfo->nConstraint; i++){
-    int bDocid;                 /* True if this constraint is on docid */
-    struct tdsqlite3_index_constraint *pCons = &pInfo->aConstraint[i];
-    if( pCons->usable==0 ){
-      if( pCons->op==SQLITE_INDEX_CONSTRAINT_MATCH ){
-        /* There exists an unusable MATCH constraint. This means that if
-        ** the planner does elect to use the results of this call as part
-        ** of the overall query plan the user will see an "unable to use
-        ** function MATCH in the requested context" error. To discourage
-        ** this, return a very high cost here.  */
-        pInfo->idxNum = FTS3_FULLSCAN_SEARCH;
-        pInfo->estimatedCost = 1e50;
-        fts3SetEstimatedRows(pInfo, ((tdsqlite3_int64)1) << 50);
-        return SQLITE_OK;
-      }
-      continue;
-    }
-
-    bDocid = (pCons->iColumn<0 || pCons->iColumn==p->nColumn+1);
-
-    /* A direct lookup on the rowid or docid column. Assign a cost of 1.0. */
-    if( iCons<0 && pCons->op==SQLITE_INDEX_CONSTRAINT_EQ && bDocid ){
-      pInfo->idxNum = FTS3_DOCID_SEARCH;
-      pInfo->estimatedCost = 1.0;
-      iCons = i;
-    }
-
-    /* A MATCH constraint. Use a full-text search.
-    **
-    ** If there is more than one MATCH constraint available, use the first
-    ** one encountered. If there is both a MATCH constraint and a direct
-    ** rowid/docid lookup, prefer the MATCH strategy. This is done even 
-    ** though the rowid/docid lookup is faster than a MATCH query, selecting
-    ** it would lead to an "unable to use function MATCH in the requested 
-    ** context" error.
-    */
-    if( pCons->op==SQLITE_INDEX_CONSTRAINT_MATCH 
-     && pCons->iColumn>=0 && pCons->iColumn<=p->nColumn
-    ){
-      pInfo->idxNum = FTS3_FULLTEXT_SEARCH + pCons->iColumn;
-      pInfo->estimatedCost = 2.0;
-      iCons = i;
-    }
-
-    /* Equality constraint on the langid column */
-    if( pCons->op==SQLITE_INDEX_CONSTRAINT_EQ 
-     && pCons->iColumn==p->nColumn + 2
-    ){
-      iLangidCons = i;
-    }
-
-    if( bDocid ){
-      switch( pCons->op ){
-        case SQLITE_INDEX_CONSTRAINT_GE:
-        case SQLITE_INDEX_CONSTRAINT_GT:
-          iDocidGe = i;
-          break;
-
-        case SQLITE_INDEX_CONSTRAINT_LE:
-        case SQLITE_INDEX_CONSTRAINT_LT:
-          iDocidLe = i;
-          break;
-      }
-    }
-  }
-
-  /* If using a docid=? or rowid=? strategy, set the UNIQUE flag. */
-  if( pInfo->idxNum==FTS3_DOCID_SEARCH ) fts3SetUniqueFlag(pInfo);
-
-  iIdx = 1;
-  if( iCons>=0 ){
-    pInfo->aConstraintUsage[iCons].argvIndex = iIdx++;
-    pInfo->aConstraintUsage[iCons].omit = 1;
-  } 
-  if( iLangidCons>=0 ){
-    pInfo->idxNum |= FTS3_HAVE_LANGID;
-    pInfo->aConstraintUsage[iLangidCons].argvIndex = iIdx++;
-  } 
-  if( iDocidGe>=0 ){
-    pInfo->idxNum |= FTS3_HAVE_DOCID_GE;
-    pInfo->aConstraintUsage[iDocidGe].argvIndex = iIdx++;
-  } 
-  if( iDocidLe>=0 ){
-    pInfo->idxNum |= FTS3_HAVE_DOCID_LE;
-    pInfo->aConstraintUsage[iDocidLe].argvIndex = iIdx++;
-  } 
-
-  /* Regardless of the strategy selected, FTS can deliver rows in rowid (or
-  ** docid) order. Both ascending and descending are possible. 
-  */
-  if( pInfo->nOrderBy==1 ){
-    struct tdsqlite3_index_orderby *pOrder = &pInfo->aOrderBy[0];
-    if( pOrder->iColumn<0 || pOrder->iColumn==p->nColumn+1 ){
-      if( pOrder->desc ){
-        pInfo->idxStr = "DESC";
-      }else{
-        pInfo->idxStr = "ASC";
-      }
-      pInfo->orderByConsumed = 1;
-    }
-  }
-
-  assert( p->pSegments==0 );
-  return SQLITE_OK;
-}
-
-/*
-** Implementation of xOpen method.
-*/
-static int fts3OpenMethod(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCsr){
-  tdsqlite3_vtab_cursor *pCsr;               /* Allocated cursor */
-
-  UNUSED_PARAMETER(pVTab);
-
-  /* Allocate a buffer large enough for an Fts3Cursor structure. If the
-  ** allocation succeeds, zero it and return SQLITE_OK. Otherwise, 
-  ** if the allocation fails, return SQLITE_NOMEM.
-  */
-  *ppCsr = pCsr = (tdsqlite3_vtab_cursor *)tdsqlite3_malloc(sizeof(Fts3Cursor));
-  if( !pCsr ){
-    return SQLITE_NOMEM;
-  }
-  memset(pCsr, 0, sizeof(Fts3Cursor));
-  return SQLITE_OK;
-}
-
-/*
-** Finalize the statement handle at pCsr->pStmt.
-**
-** Or, if that statement handle is one created by fts3CursorSeekStmt(),
-** and the Fts3Table.pSeekStmt slot is currently NULL, save the statement
-** pointer there instead of finalizing it.
-*/
-static void fts3CursorFinalizeStmt(Fts3Cursor *pCsr){
-  if( pCsr->bSeekStmt ){
-    Fts3Table *p = (Fts3Table *)pCsr->base.pVtab;
-    if( p->pSeekStmt==0 ){
-      p->pSeekStmt = pCsr->pStmt;
-      tdsqlite3_reset(pCsr->pStmt);
-      pCsr->pStmt = 0;
-    }
-    pCsr->bSeekStmt = 0;
-  }
-  tdsqlite3_finalize(pCsr->pStmt);
-}
-
-/*
-** Free all resources currently held by the cursor passed as the only
-** argument.
-*/
-static void fts3ClearCursor(Fts3Cursor *pCsr){
-  fts3CursorFinalizeStmt(pCsr);
-  tdsqlite3Fts3FreeDeferredTokens(pCsr);
-  tdsqlite3_free(pCsr->aDoclist);
-  tdsqlite3Fts3MIBufferFree(pCsr->pMIBuffer);
-  tdsqlite3Fts3ExprFree(pCsr->pExpr);
-  memset(&(&pCsr->base)[1], 0, sizeof(Fts3Cursor)-sizeof(tdsqlite3_vtab_cursor));
-}
-
-/*
-** Close the cursor.  For additional information see the documentation
-** on the xClose method of the virtual table interface.
-*/
-static int fts3CloseMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts3Cursor *pCsr = (Fts3Cursor *)pCursor;
-  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
-  fts3ClearCursor(pCsr);
-  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-/*
-** If pCsr->pStmt has not been prepared (i.e. if pCsr->pStmt==0), then
-** compose and prepare an SQL statement of the form:
-**
-**    "SELECT <columns> FROM %_content WHERE rowid = ?"
-**
-** (or the equivalent for a content=xxx table) and set pCsr->pStmt to
-** it. If an error occurs, return an SQLite error code.
-*/
-static int fts3CursorSeekStmt(Fts3Cursor *pCsr){
-  int rc = SQLITE_OK;
-  if( pCsr->pStmt==0 ){
-    Fts3Table *p = (Fts3Table *)pCsr->base.pVtab;
-    char *zSql;
-    if( p->pSeekStmt ){
-      pCsr->pStmt = p->pSeekStmt;
-      p->pSeekStmt = 0;
-    }else{
-      zSql = tdsqlite3_mprintf("SELECT %s WHERE rowid = ?", p->zReadExprlist);
-      if( !zSql ) return SQLITE_NOMEM;
-      p->bLock++;
-      rc = tdsqlite3_prepare_v3(
-          p->db, zSql,-1,SQLITE_PREPARE_PERSISTENT,&pCsr->pStmt,0
-      );
-      p->bLock--;
-      tdsqlite3_free(zSql);
-    }
-    if( rc==SQLITE_OK ) pCsr->bSeekStmt = 1;
-  }
-  return rc;
-}
-
-/*
-** Position the pCsr->pStmt statement so that it is on the row
-** of the %_content table that contains the last match.  Return
-** SQLITE_OK on success.  
-*/
-static int fts3CursorSeek(tdsqlite3_context *pContext, Fts3Cursor *pCsr){
-  int rc = SQLITE_OK;
-  if( pCsr->isRequireSeek ){
-    rc = fts3CursorSeekStmt(pCsr);
-    if( rc==SQLITE_OK ){
-      Fts3Table *pTab = (Fts3Table*)pCsr->base.pVtab;
-      pTab->bLock++;
-      tdsqlite3_bind_int64(pCsr->pStmt, 1, pCsr->iPrevId);
-      pCsr->isRequireSeek = 0;
-      if( SQLITE_ROW==tdsqlite3_step(pCsr->pStmt) ){
-        pTab->bLock--;
-        return SQLITE_OK;
-      }else{
-        pTab->bLock--;
-        rc = tdsqlite3_reset(pCsr->pStmt);
-        if( rc==SQLITE_OK && ((Fts3Table *)pCsr->base.pVtab)->zContentTbl==0 ){
-          /* If no row was found and no error has occurred, then the %_content
-          ** table is missing a row that is present in the full-text index.
-          ** The data structures are corrupt.  */
-          rc = FTS_CORRUPT_VTAB;
-          pCsr->isEof = 1;
-        }
-      }
-    }
-  }
-
-  if( rc!=SQLITE_OK && pContext ){
-    tdsqlite3_result_error_code(pContext, rc);
-  }
-  return rc;
-}
-
-/*
-** This function is used to process a single interior node when searching
-** a b-tree for a term or term prefix. The node data is passed to this 
-** function via the zNode/nNode parameters. The term to search for is
-** passed in zTerm/nTerm.
-**
-** If piFirst is not NULL, then this function sets *piFirst to the blockid
-** of the child node that heads the sub-tree that may contain the term.
-**
-** If piLast is not NULL, then *piLast is set to the right-most child node
-** that heads a sub-tree that may contain a term for which zTerm/nTerm is
-** a prefix.
-**
-** If an OOM error occurs, SQLITE_NOMEM is returned. Otherwise, SQLITE_OK.
-*/
-static int fts3ScanInteriorNode(
-  const char *zTerm,              /* Term to select leaves for */
-  int nTerm,                      /* Size of term zTerm in bytes */
-  const char *zNode,              /* Buffer containing segment interior node */
-  int nNode,                      /* Size of buffer at zNode */
-  tdsqlite3_int64 *piFirst,         /* OUT: Selected child node */
-  tdsqlite3_int64 *piLast           /* OUT: Selected child node */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  const char *zCsr = zNode;       /* Cursor to iterate through node */
-  const char *zEnd = &zCsr[nNode];/* End of interior node buffer */
-  char *zBuffer = 0;              /* Buffer to load terms into */
-  i64 nAlloc = 0;                 /* Size of allocated buffer */
-  int isFirstTerm = 1;            /* True when processing first term on page */
-  tdsqlite3_int64 iChild;           /* Block id of child node to descend to */
-
-  /* Skip over the 'height' varint that occurs at the start of every 
-  ** interior node. Then load the blockid of the left-child of the b-tree
-  ** node into variable iChild.  
-  **
-  ** Even if the data structure on disk is corrupted, this (reading two
-  ** varints from the buffer) does not risk an overread. If zNode is a
-  ** root node, then the buffer comes from a SELECT statement. SQLite does
-  ** not make this guarantee explicitly, but in practice there are always
-  ** either more than 20 bytes of allocated space following the nNode bytes of
-  ** contents, or two zero bytes. Or, if the node is read from the %_segments
-  ** table, then there are always 20 bytes of zeroed padding following the
-  ** nNode bytes of content (see tdsqlite3Fts3ReadBlock() for details).
-  */
-  zCsr += tdsqlite3Fts3GetVarint(zCsr, &iChild);
-  zCsr += tdsqlite3Fts3GetVarint(zCsr, &iChild);
-  if( zCsr>zEnd ){
-    return FTS_CORRUPT_VTAB;
-  }
-  
-  while( zCsr<zEnd && (piFirst || piLast) ){
-    int cmp;                      /* memcmp() result */
-    int nSuffix;                  /* Size of term suffix */
-    int nPrefix = 0;              /* Size of term prefix */
-    int nBuffer;                  /* Total term size */
-  
-    /* Load the next term on the node into zBuffer. Use realloc() to expand
-    ** the size of zBuffer if required.  */
-    if( !isFirstTerm ){
-      zCsr += fts3GetVarint32(zCsr, &nPrefix);
-    }
-    isFirstTerm = 0;
-    zCsr += fts3GetVarint32(zCsr, &nSuffix);
-    
-    assert( nPrefix>=0 && nSuffix>=0 );
-    if( nPrefix>zCsr-zNode || nSuffix>zEnd-zCsr || nSuffix==0 ){
-      rc = FTS_CORRUPT_VTAB;
-      goto finish_scan;
-    }
-    if( (i64)nPrefix+nSuffix>nAlloc ){
-      char *zNew;
-      nAlloc = ((i64)nPrefix+nSuffix) * 2;
-      zNew = (char *)tdsqlite3_realloc64(zBuffer, nAlloc);
-      if( !zNew ){
-        rc = SQLITE_NOMEM;
-        goto finish_scan;
-      }
-      zBuffer = zNew;
-    }
-    assert( zBuffer );
-    memcpy(&zBuffer[nPrefix], zCsr, nSuffix);
-    nBuffer = nPrefix + nSuffix;
-    zCsr += nSuffix;
-
-    /* Compare the term we are searching for with the term just loaded from
-    ** the interior node. If the specified term is greater than or equal
-    ** to the term from the interior node, then all terms on the sub-tree 
-    ** headed by node iChild are smaller than zTerm. No need to search 
-    ** iChild.
-    **
-    ** If the interior node term is larger than the specified term, then
-    ** the tree headed by iChild may contain the specified term.
-    */
-    cmp = memcmp(zTerm, zBuffer, (nBuffer>nTerm ? nTerm : nBuffer));
-    if( piFirst && (cmp<0 || (cmp==0 && nBuffer>nTerm)) ){
-      *piFirst = iChild;
-      piFirst = 0;
-    }
-
-    if( piLast && cmp<0 ){
-      *piLast = iChild;
-      piLast = 0;
-    }
-
-    iChild++;
-  };
-
-  if( piFirst ) *piFirst = iChild;
-  if( piLast ) *piLast = iChild;
-
- finish_scan:
-  tdsqlite3_free(zBuffer);
-  return rc;
-}
-
-
-/*
-** The buffer pointed to by argument zNode (size nNode bytes) contains an
-** interior node of a b-tree segment. The zTerm buffer (size nTerm bytes)
-** contains a term. This function searches the sub-tree headed by the zNode
-** node for the range of leaf nodes that may contain the specified term
-** or terms for which the specified term is a prefix.
-**
-** If piLeaf is not NULL, then *piLeaf is set to the blockid of the 
-** left-most leaf node in the tree that may contain the specified term.
-** If piLeaf2 is not NULL, then *piLeaf2 is set to the blockid of the
-** right-most leaf node that may contain a term for which the specified
-** term is a prefix.
-**
-** It is possible that the range of returned leaf nodes does not contain 
-** the specified term or any terms for which it is a prefix. However, if the 
-** segment does contain any such terms, they are stored within the identified
-** range. Because this function only inspects interior segment nodes (and
-** never loads leaf nodes into memory), it is not possible to be sure.
-**
-** If an error occurs, an error code other than SQLITE_OK is returned.
-*/ 
-static int fts3SelectLeaf(
-  Fts3Table *p,                   /* Virtual table handle */
-  const char *zTerm,              /* Term to select leaves for */
-  int nTerm,                      /* Size of term zTerm in bytes */
-  const char *zNode,              /* Buffer containing segment interior node */
-  int nNode,                      /* Size of buffer at zNode */
-  tdsqlite3_int64 *piLeaf,          /* Selected leaf node */
-  tdsqlite3_int64 *piLeaf2          /* Selected leaf node */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  int iHeight;                    /* Height of this node in tree */
-
-  assert( piLeaf || piLeaf2 );
-
-  fts3GetVarint32(zNode, &iHeight);
-  rc = fts3ScanInteriorNode(zTerm, nTerm, zNode, nNode, piLeaf, piLeaf2);
-  assert_fts3_nc( !piLeaf2 || !piLeaf || rc!=SQLITE_OK || (*piLeaf<=*piLeaf2) );
-
-  if( rc==SQLITE_OK && iHeight>1 ){
-    char *zBlob = 0;              /* Blob read from %_segments table */
-    int nBlob = 0;                /* Size of zBlob in bytes */
-
-    if( piLeaf && piLeaf2 && (*piLeaf!=*piLeaf2) ){
-      rc = tdsqlite3Fts3ReadBlock(p, *piLeaf, &zBlob, &nBlob, 0);
-      if( rc==SQLITE_OK ){
-        rc = fts3SelectLeaf(p, zTerm, nTerm, zBlob, nBlob, piLeaf, 0);
-      }
-      tdsqlite3_free(zBlob);
-      piLeaf = 0;
-      zBlob = 0;
-    }
-
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3Fts3ReadBlock(p, piLeaf?*piLeaf:*piLeaf2, &zBlob, &nBlob, 0);
-    }
-    if( rc==SQLITE_OK ){
-      int iNewHeight = 0;
-      fts3GetVarint32(zBlob, &iNewHeight);
-      if( iNewHeight>=iHeight ){
-        rc = FTS_CORRUPT_VTAB;
-      }else{
-        rc = fts3SelectLeaf(p, zTerm, nTerm, zBlob, nBlob, piLeaf, piLeaf2);
-      }
-    }
-    tdsqlite3_free(zBlob);
-  }
-
-  return rc;
-}
-
-/*
-** This function is used to create delta-encoded serialized lists of FTS3 
-** varints. Each call to this function appends a single varint to a list.
-*/
-static void fts3PutDeltaVarint(
-  char **pp,                      /* IN/OUT: Output pointer */
-  tdsqlite3_int64 *piPrev,          /* IN/OUT: Previous value written to list */
-  tdsqlite3_int64 iVal              /* Write this value to the list */
-){
-  assert( iVal-*piPrev > 0 || (*piPrev==0 && iVal==0) );
-  *pp += tdsqlite3Fts3PutVarint(*pp, iVal-*piPrev);
-  *piPrev = iVal;
-}
-
-/*
-** When this function is called, *ppPoslist is assumed to point to the 
-** start of a position-list. After it returns, *ppPoslist points to the
-** first byte after the position-list.
-**
-** A position list is list of positions (delta encoded) and columns for 
-** a single document record of a doclist.  So, in other words, this
-** routine advances *ppPoslist so that it points to the next docid in
-** the doclist, or to the first byte past the end of the doclist.
-**
-** If pp is not NULL, then the contents of the position list are copied
-** to *pp. *pp is set to point to the first byte past the last byte copied
-** before this function returns.
-*/
-static void fts3PoslistCopy(char **pp, char **ppPoslist){
-  char *pEnd = *ppPoslist;
-  char c = 0;
-
-  /* The end of a position list is marked by a zero encoded as an FTS3 
-  ** varint. A single POS_END (0) byte. Except, if the 0 byte is preceded by
-  ** a byte with the 0x80 bit set, then it is not a varint 0, but the tail
-  ** of some other, multi-byte, value.
-  **
-  ** The following while-loop moves pEnd to point to the first byte that is not 
-  ** immediately preceded by a byte with the 0x80 bit set. Then increments
-  ** pEnd once more so that it points to the byte immediately following the
-  ** last byte in the position-list.
-  */
-  while( *pEnd | c ){
-    c = *pEnd++ & 0x80;
-    testcase( c!=0 && (*pEnd)==0 );
-  }
-  pEnd++;  /* Advance past the POS_END terminator byte */
-
-  if( pp ){
-    int n = (int)(pEnd - *ppPoslist);
-    char *p = *pp;
-    memcpy(p, *ppPoslist, n);
-    p += n;
-    *pp = p;
-  }
-  *ppPoslist = pEnd;
-}
-
-/*
-** When this function is called, *ppPoslist is assumed to point to the 
-** start of a column-list. After it returns, *ppPoslist points to the
-** to the terminator (POS_COLUMN or POS_END) byte of the column-list.
-**
-** A column-list is list of delta-encoded positions for a single column
-** within a single document within a doclist.
-**
-** The column-list is terminated either by a POS_COLUMN varint (1) or
-** a POS_END varint (0).  This routine leaves *ppPoslist pointing to
-** the POS_COLUMN or POS_END that terminates the column-list.
-**
-** If pp is not NULL, then the contents of the column-list are copied
-** to *pp. *pp is set to point to the first byte past the last byte copied
-** before this function returns.  The POS_COLUMN or POS_END terminator
-** is not copied into *pp.
-*/
-static void fts3ColumnlistCopy(char **pp, char **ppPoslist){
-  char *pEnd = *ppPoslist;
-  char c = 0;
-
-  /* A column-list is terminated by either a 0x01 or 0x00 byte that is
-  ** not part of a multi-byte varint.
-  */
-  while( 0xFE & (*pEnd | c) ){
-    c = *pEnd++ & 0x80;
-    testcase( c!=0 && ((*pEnd)&0xfe)==0 );
-  }
-  if( pp ){
-    int n = (int)(pEnd - *ppPoslist);
-    char *p = *pp;
-    memcpy(p, *ppPoslist, n);
-    p += n;
-    *pp = p;
-  }
-  *ppPoslist = pEnd;
-}
-
-/*
-** Value used to signify the end of an position-list. This must be
-** as large or larger than any value that might appear on the
-** position-list, even a position list that has been corrupted.
-*/
-#define POSITION_LIST_END LARGEST_INT64
-
-/*
-** This function is used to help parse position-lists. When this function is
-** called, *pp may point to the start of the next varint in the position-list
-** being parsed, or it may point to 1 byte past the end of the position-list
-** (in which case **pp will be a terminator bytes POS_END (0) or
-** (1)).
-**
-** If *pp points past the end of the current position-list, set *pi to 
-** POSITION_LIST_END and return. Otherwise, read the next varint from *pp,
-** increment the current value of *pi by the value read, and set *pp to
-** point to the next value before returning.
-**
-** Before calling this routine *pi must be initialized to the value of
-** the previous position, or zero if we are reading the first position
-** in the position-list.  Because positions are delta-encoded, the value
-** of the previous position is needed in order to compute the value of
-** the next position.
-*/
-static void fts3ReadNextPos(
-  char **pp,                    /* IN/OUT: Pointer into position-list buffer */
-  tdsqlite3_int64 *pi             /* IN/OUT: Value read from position-list */
-){
-  if( (**pp)&0xFE ){
-    fts3GetDeltaVarint(pp, pi);
-    *pi -= 2;
-  }else{
-    *pi = POSITION_LIST_END;
-  }
-}
-
-/*
-** If parameter iCol is not 0, write an POS_COLUMN (1) byte followed by
-** the value of iCol encoded as a varint to *pp.   This will start a new
-** column list.
-**
-** Set *pp to point to the byte just after the last byte written before 
-** returning (do not modify it if iCol==0). Return the total number of bytes
-** written (0 if iCol==0).
-*/
-static int fts3PutColNumber(char **pp, int iCol){
-  int n = 0;                      /* Number of bytes written */
-  if( iCol ){
-    char *p = *pp;                /* Output pointer */
-    n = 1 + tdsqlite3Fts3PutVarint(&p[1], iCol);
-    *p = 0x01;
-    *pp = &p[n];
-  }
-  return n;
-}
-
-/*
-** Compute the union of two position lists.  The output written
-** into *pp contains all positions of both *pp1 and *pp2 in sorted
-** order and with any duplicates removed.  All pointers are
-** updated appropriately.   The caller is responsible for insuring
-** that there is enough space in *pp to hold the complete output.
-*/
-static int fts3PoslistMerge(
-  char **pp,                      /* Output buffer */
-  char **pp1,                     /* Left input list */
-  char **pp2                      /* Right input list */
-){
-  char *p = *pp;
-  char *p1 = *pp1;
-  char *p2 = *pp2;
-
-  while( *p1 || *p2 ){
-    int iCol1;         /* The current column index in pp1 */
-    int iCol2;         /* The current column index in pp2 */
-
-    if( *p1==POS_COLUMN ){ 
-      fts3GetVarint32(&p1[1], &iCol1);
-      if( iCol1==0 ) return FTS_CORRUPT_VTAB;
-    }
-    else if( *p1==POS_END ) iCol1 = 0x7fffffff;
-    else iCol1 = 0;
-
-    if( *p2==POS_COLUMN ){
-      fts3GetVarint32(&p2[1], &iCol2);
-      if( iCol2==0 ) return FTS_CORRUPT_VTAB;
-    }
-    else if( *p2==POS_END ) iCol2 = 0x7fffffff;
-    else iCol2 = 0;
-
-    if( iCol1==iCol2 ){
-      tdsqlite3_int64 i1 = 0;       /* Last position from pp1 */
-      tdsqlite3_int64 i2 = 0;       /* Last position from pp2 */
-      tdsqlite3_int64 iPrev = 0;
-      int n = fts3PutColNumber(&p, iCol1);
-      p1 += n;
-      p2 += n;
-
-      /* At this point, both p1 and p2 point to the start of column-lists
-      ** for the same column (the column with index iCol1 and iCol2).
-      ** A column-list is a list of non-negative delta-encoded varints, each 
-      ** incremented by 2 before being stored. Each list is terminated by a
-      ** POS_END (0) or POS_COLUMN (1). The following block merges the two lists
-      ** and writes the results to buffer p. p is left pointing to the byte
-      ** after the list written. No terminator (POS_END or POS_COLUMN) is
-      ** written to the output.
-      */
-      fts3GetDeltaVarint(&p1, &i1);
-      fts3GetDeltaVarint(&p2, &i2);
-      do {
-        fts3PutDeltaVarint(&p, &iPrev, (i1<i2) ? i1 : i2); 
-        iPrev -= 2;
-        if( i1==i2 ){
-          fts3ReadNextPos(&p1, &i1);
-          fts3ReadNextPos(&p2, &i2);
-        }else if( i1<i2 ){
-          fts3ReadNextPos(&p1, &i1);
-        }else{
-          fts3ReadNextPos(&p2, &i2);
-        }
-      }while( i1!=POSITION_LIST_END || i2!=POSITION_LIST_END );
-    }else if( iCol1<iCol2 ){
-      p1 += fts3PutColNumber(&p, iCol1);
-      fts3ColumnlistCopy(&p, &p1);
-    }else{
-      p2 += fts3PutColNumber(&p, iCol2);
-      fts3ColumnlistCopy(&p, &p2);
-    }
-  }
-
-  *p++ = POS_END;
-  *pp = p;
-  *pp1 = p1 + 1;
-  *pp2 = p2 + 1;
-  return SQLITE_OK;
-}
-
-/*
-** This function is used to merge two position lists into one. When it is
-** called, *pp1 and *pp2 must both point to position lists. A position-list is
-** the part of a doclist that follows each document id. For example, if a row
-** contains:
-**
-**     'a b c'|'x y z'|'a b b a'
-**
-** Then the position list for this row for token 'b' would consist of:
-**
-**     0x02 0x01 0x02 0x03 0x03 0x00
-**
-** When this function returns, both *pp1 and *pp2 are left pointing to the
-** byte following the 0x00 terminator of their respective position lists.
-**
-** If isSaveLeft is 0, an entry is added to the output position list for 
-** each position in *pp2 for which there exists one or more positions in
-** *pp1 so that (pos(*pp2)>pos(*pp1) && pos(*pp2)-pos(*pp1)<=nToken). i.e.
-** when the *pp1 token appears before the *pp2 token, but not more than nToken
-** slots before it.
-**
-** e.g. nToken==1 searches for adjacent positions.
-*/
-static int fts3PoslistPhraseMerge(
-  char **pp,                      /* IN/OUT: Preallocated output buffer */
-  int nToken,                     /* Maximum difference in token positions */
-  int isSaveLeft,                 /* Save the left position */
-  int isExact,                    /* If *pp1 is exactly nTokens before *pp2 */
-  char **pp1,                     /* IN/OUT: Left input list */
-  char **pp2                      /* IN/OUT: Right input list */
-){
-  char *p = *pp;
-  char *p1 = *pp1;
-  char *p2 = *pp2;
-  int iCol1 = 0;
-  int iCol2 = 0;
-
-  /* Never set both isSaveLeft and isExact for the same invocation. */
-  assert( isSaveLeft==0 || isExact==0 );
-
-  assert( p!=0 && *p1!=0 && *p2!=0 );
-  if( *p1==POS_COLUMN ){ 
-    p1++;
-    p1 += fts3GetVarint32(p1, &iCol1);
-  }
-  if( *p2==POS_COLUMN ){ 
-    p2++;
-    p2 += fts3GetVarint32(p2, &iCol2);
-  }
-
-  while( 1 ){
-    if( iCol1==iCol2 ){
-      char *pSave = p;
-      tdsqlite3_int64 iPrev = 0;
-      tdsqlite3_int64 iPos1 = 0;
-      tdsqlite3_int64 iPos2 = 0;
-
-      if( iCol1 ){
-        *p++ = POS_COLUMN;
-        p += tdsqlite3Fts3PutVarint(p, iCol1);
-      }
-
-      fts3GetDeltaVarint(&p1, &iPos1); iPos1 -= 2;
-      fts3GetDeltaVarint(&p2, &iPos2); iPos2 -= 2;
-      if( iPos1<0 || iPos2<0 ) break;
-
-      while( 1 ){
-        if( iPos2==iPos1+nToken 
-         || (isExact==0 && iPos2>iPos1 && iPos2<=iPos1+nToken) 
-        ){
-          tdsqlite3_int64 iSave;
-          iSave = isSaveLeft ? iPos1 : iPos2;
-          fts3PutDeltaVarint(&p, &iPrev, iSave+2); iPrev -= 2;
-          pSave = 0;
-          assert( p );
-        }
-        if( (!isSaveLeft && iPos2<=(iPos1+nToken)) || iPos2<=iPos1 ){
-          if( (*p2&0xFE)==0 ) break;
-          fts3GetDeltaVarint(&p2, &iPos2); iPos2 -= 2;
-        }else{
-          if( (*p1&0xFE)==0 ) break;
-          fts3GetDeltaVarint(&p1, &iPos1); iPos1 -= 2;
-        }
-      }
-
-      if( pSave ){
-        assert( pp && p );
-        p = pSave;
-      }
-
-      fts3ColumnlistCopy(0, &p1);
-      fts3ColumnlistCopy(0, &p2);
-      assert( (*p1&0xFE)==0 && (*p2&0xFE)==0 );
-      if( 0==*p1 || 0==*p2 ) break;
-
-      p1++;
-      p1 += fts3GetVarint32(p1, &iCol1);
-      p2++;
-      p2 += fts3GetVarint32(p2, &iCol2);
-    }
-
-    /* Advance pointer p1 or p2 (whichever corresponds to the smaller of
-    ** iCol1 and iCol2) so that it points to either the 0x00 that marks the
-    ** end of the position list, or the 0x01 that precedes the next 
-    ** column-number in the position list. 
-    */
-    else if( iCol1<iCol2 ){
-      fts3ColumnlistCopy(0, &p1);
-      if( 0==*p1 ) break;
-      p1++;
-      p1 += fts3GetVarint32(p1, &iCol1);
-    }else{
-      fts3ColumnlistCopy(0, &p2);
-      if( 0==*p2 ) break;
-      p2++;
-      p2 += fts3GetVarint32(p2, &iCol2);
-    }
-  }
-
-  fts3PoslistCopy(0, &p2);
-  fts3PoslistCopy(0, &p1);
-  *pp1 = p1;
-  *pp2 = p2;
-  if( *pp==p ){
-    return 0;
-  }
-  *p++ = 0x00;
-  *pp = p;
-  return 1;
-}
-
-/*
-** Merge two position-lists as required by the NEAR operator. The argument
-** position lists correspond to the left and right phrases of an expression 
-** like:
-**
-**     "phrase 1" NEAR "phrase number 2"
-**
-** Position list *pp1 corresponds to the left-hand side of the NEAR 
-** expression and *pp2 to the right. As usual, the indexes in the position 
-** lists are the offsets of the last token in each phrase (tokens "1" and "2" 
-** in the example above).
-**
-** The output position list - written to *pp - is a copy of *pp2 with those
-** entries that are not sufficiently NEAR entries in *pp1 removed.
-*/
-static int fts3PoslistNearMerge(
-  char **pp,                      /* Output buffer */
-  char *aTmp,                     /* Temporary buffer space */
-  int nRight,                     /* Maximum difference in token positions */
-  int nLeft,                      /* Maximum difference in token positions */
-  char **pp1,                     /* IN/OUT: Left input list */
-  char **pp2                      /* IN/OUT: Right input list */
-){
-  char *p1 = *pp1;
-  char *p2 = *pp2;
-
-  char *pTmp1 = aTmp;
-  char *pTmp2;
-  char *aTmp2;
-  int res = 1;
-
-  fts3PoslistPhraseMerge(&pTmp1, nRight, 0, 0, pp1, pp2);
-  aTmp2 = pTmp2 = pTmp1;
-  *pp1 = p1;
-  *pp2 = p2;
-  fts3PoslistPhraseMerge(&pTmp2, nLeft, 1, 0, pp2, pp1);
-  if( pTmp1!=aTmp && pTmp2!=aTmp2 ){
-    fts3PoslistMerge(pp, &aTmp, &aTmp2);
-  }else if( pTmp1!=aTmp ){
-    fts3PoslistCopy(pp, &aTmp);
-  }else if( pTmp2!=aTmp2 ){
-    fts3PoslistCopy(pp, &aTmp2);
-  }else{
-    res = 0;
-  }
-
-  return res;
-}
-
-/* 
-** An instance of this function is used to merge together the (potentially
-** large number of) doclists for each term that matches a prefix query.
-** See function fts3TermSelectMerge() for details.
-*/
-typedef struct TermSelect TermSelect;
-struct TermSelect {
-  char *aaOutput[16];             /* Malloc'd output buffers */
-  int anOutput[16];               /* Size each output buffer in bytes */
-};
-
-/*
-** This function is used to read a single varint from a buffer. Parameter
-** pEnd points 1 byte past the end of the buffer. When this function is
-** called, if *pp points to pEnd or greater, then the end of the buffer
-** has been reached. In this case *pp is set to 0 and the function returns.
-**
-** If *pp does not point to or past pEnd, then a single varint is read
-** from *pp. *pp is then set to point 1 byte past the end of the read varint.
-**
-** If bDescIdx is false, the value read is added to *pVal before returning.
-** If it is true, the value read is subtracted from *pVal before this 
-** function returns.
-*/
-static void fts3GetDeltaVarint3(
-  char **pp,                      /* IN/OUT: Point to read varint from */
-  char *pEnd,                     /* End of buffer */
-  int bDescIdx,                   /* True if docids are descending */
-  tdsqlite3_int64 *pVal             /* IN/OUT: Integer value */
-){
-  if( *pp>=pEnd ){
-    *pp = 0;
-  }else{
-    u64 iVal;
-    *pp += tdsqlite3Fts3GetVarintU(*pp, &iVal);
-    if( bDescIdx ){
-      *pVal = (i64)((u64)*pVal - iVal);
-    }else{
-      *pVal = (i64)((u64)*pVal + iVal);
-    }
-  }
-}
-
-/*
-** This function is used to write a single varint to a buffer. The varint
-** is written to *pp. Before returning, *pp is set to point 1 byte past the
-** end of the value written.
-**
-** If *pbFirst is zero when this function is called, the value written to
-** the buffer is that of parameter iVal. 
-**
-** If *pbFirst is non-zero when this function is called, then the value 
-** written is either (iVal-*piPrev) (if bDescIdx is zero) or (*piPrev-iVal)
-** (if bDescIdx is non-zero).
-**
-** Before returning, this function always sets *pbFirst to 1 and *piPrev
-** to the value of parameter iVal.
-*/
-static void fts3PutDeltaVarint3(
-  char **pp,                      /* IN/OUT: Output pointer */
-  int bDescIdx,                   /* True for descending docids */
-  tdsqlite3_int64 *piPrev,          /* IN/OUT: Previous value written to list */
-  int *pbFirst,                   /* IN/OUT: True after first int written */
-  tdsqlite3_int64 iVal              /* Write this value to the list */
-){
-  tdsqlite3_uint64 iWrite;
-  if( bDescIdx==0 || *pbFirst==0 ){
-    assert_fts3_nc( *pbFirst==0 || iVal>=*piPrev );
-    iWrite = (u64)iVal - (u64)*piPrev;
-  }else{
-    assert_fts3_nc( *piPrev>=iVal );
-    iWrite = (u64)*piPrev - (u64)iVal;
-  }
-  assert( *pbFirst || *piPrev==0 );
-  assert_fts3_nc( *pbFirst==0 || iWrite>0 );
-  *pp += tdsqlite3Fts3PutVarint(*pp, iWrite);
-  *piPrev = iVal;
-  *pbFirst = 1;
-}
-
-
-/*
-** This macro is used by various functions that merge doclists. The two
-** arguments are 64-bit docid values. If the value of the stack variable
-** bDescDoclist is 0 when this macro is invoked, then it returns (i1-i2). 
-** Otherwise, (i2-i1).
-**
-** Using this makes it easier to write code that can merge doclists that are
-** sorted in either ascending or descending order.
-*/
-/* #define DOCID_CMP(i1, i2) ((bDescDoclist?-1:1) * (i64)((u64)i1-i2)) */
-#define DOCID_CMP(i1, i2) ((bDescDoclist?-1:1) * (i1>i2?1:((i1==i2)?0:-1)))
-
-/*
-** This function does an "OR" merge of two doclists (output contains all
-** positions contained in either argument doclist). If the docids in the 
-** input doclists are sorted in ascending order, parameter bDescDoclist
-** should be false. If they are sorted in ascending order, it should be
-** passed a non-zero value.
-**
-** If no error occurs, *paOut is set to point at an tdsqlite3_malloc'd buffer
-** containing the output doclist and SQLITE_OK is returned. In this case
-** *pnOut is set to the number of bytes in the output doclist.
-**
-** If an error occurs, an SQLite error code is returned. The output values
-** are undefined in this case.
-*/
-static int fts3DoclistOrMerge(
-  int bDescDoclist,               /* True if arguments are desc */
-  char *a1, int n1,               /* First doclist */
-  char *a2, int n2,               /* Second doclist */
-  char **paOut, int *pnOut        /* OUT: Malloc'd doclist */
-){
-  int rc = SQLITE_OK;
-  tdsqlite3_int64 i1 = 0;
-  tdsqlite3_int64 i2 = 0;
-  tdsqlite3_int64 iPrev = 0;
-  char *pEnd1 = &a1[n1];
-  char *pEnd2 = &a2[n2];
-  char *p1 = a1;
-  char *p2 = a2;
-  char *p;
-  char *aOut;
-  int bFirstOut = 0;
-
-  *paOut = 0;
-  *pnOut = 0;
-
-  /* Allocate space for the output. Both the input and output doclists
-  ** are delta encoded. If they are in ascending order (bDescDoclist==0),
-  ** then the first docid in each list is simply encoded as a varint. For
-  ** each subsequent docid, the varint stored is the difference between the
-  ** current and previous docid (a positive number - since the list is in
-  ** ascending order).
-  **
-  ** The first docid written to the output is therefore encoded using the 
-  ** same number of bytes as it is in whichever of the input lists it is
-  ** read from. And each subsequent docid read from the same input list 
-  ** consumes either the same or less bytes as it did in the input (since
-  ** the difference between it and the previous value in the output must
-  ** be a positive value less than or equal to the delta value read from 
-  ** the input list). The same argument applies to all but the first docid
-  ** read from the 'other' list. And to the contents of all position lists
-  ** that will be copied and merged from the input to the output.
-  **
-  ** However, if the first docid copied to the output is a negative number,
-  ** then the encoding of the first docid from the 'other' input list may
-  ** be larger in the output than it was in the input (since the delta value
-  ** may be a larger positive integer than the actual docid).
-  **
-  ** The space required to store the output is therefore the sum of the
-  ** sizes of the two inputs, plus enough space for exactly one of the input
-  ** docids to grow. 
-  **
-  ** A symetric argument may be made if the doclists are in descending 
-  ** order.
-  */
-  aOut = tdsqlite3_malloc64((i64)n1+n2+FTS3_VARINT_MAX-1+FTS3_BUFFER_PADDING);
-  if( !aOut ) return SQLITE_NOMEM;
-
-  p = aOut;
-  fts3GetDeltaVarint3(&p1, pEnd1, 0, &i1);
-  fts3GetDeltaVarint3(&p2, pEnd2, 0, &i2);
-  while( p1 || p2 ){
-    tdsqlite3_int64 iDiff = DOCID_CMP(i1, i2);
-
-    if( p2 && p1 && iDiff==0 ){
-      fts3PutDeltaVarint3(&p, bDescDoclist, &iPrev, &bFirstOut, i1);
-      rc = fts3PoslistMerge(&p, &p1, &p2);
-      if( rc ) break;
-      fts3GetDeltaVarint3(&p1, pEnd1, bDescDoclist, &i1);
-      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
-    }else if( !p2 || (p1 && iDiff<0) ){
-      fts3PutDeltaVarint3(&p, bDescDoclist, &iPrev, &bFirstOut, i1);
-      fts3PoslistCopy(&p, &p1);
-      fts3GetDeltaVarint3(&p1, pEnd1, bDescDoclist, &i1);
-    }else{
-      fts3PutDeltaVarint3(&p, bDescDoclist, &iPrev, &bFirstOut, i2);
-      fts3PoslistCopy(&p, &p2);
-      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
-    }
-    
-    assert( (p-aOut)<=((p1?(p1-a1):n1)+(p2?(p2-a2):n2)+FTS3_VARINT_MAX-1) );
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_free(aOut);
-    p = aOut = 0;
-  }else{
-    assert( (p-aOut)<=n1+n2+FTS3_VARINT_MAX-1 );
-    memset(&aOut[(p-aOut)], 0, FTS3_BUFFER_PADDING);
-  }
-  *paOut = aOut;
-  *pnOut = (int)(p-aOut);
-  return rc;
-}
-
-/*
-** This function does a "phrase" merge of two doclists. In a phrase merge,
-** the output contains a copy of each position from the right-hand input
-** doclist for which there is a position in the left-hand input doclist
-** exactly nDist tokens before it.
-**
-** If the docids in the input doclists are sorted in ascending order,
-** parameter bDescDoclist should be false. If they are sorted in ascending 
-** order, it should be passed a non-zero value.
-**
-** The right-hand input doclist is overwritten by this function.
-*/
-static int fts3DoclistPhraseMerge(
-  int bDescDoclist,               /* True if arguments are desc */
-  int nDist,                      /* Distance from left to right (1=adjacent) */
-  char *aLeft, int nLeft,         /* Left doclist */
-  char **paRight, int *pnRight    /* IN/OUT: Right/output doclist */
-){
-  tdsqlite3_int64 i1 = 0;
-  tdsqlite3_int64 i2 = 0;
-  tdsqlite3_int64 iPrev = 0;
-  char *aRight = *paRight;
-  char *pEnd1 = &aLeft[nLeft];
-  char *pEnd2 = &aRight[*pnRight];
-  char *p1 = aLeft;
-  char *p2 = aRight;
-  char *p;
-  int bFirstOut = 0;
-  char *aOut;
-
-  assert( nDist>0 );
-  if( bDescDoclist ){
-    aOut = tdsqlite3_malloc64((tdsqlite3_int64)*pnRight + FTS3_VARINT_MAX);
-    if( aOut==0 ) return SQLITE_NOMEM;
-  }else{
-    aOut = aRight;
-  }
-  p = aOut;
-
-  fts3GetDeltaVarint3(&p1, pEnd1, 0, &i1);
-  fts3GetDeltaVarint3(&p2, pEnd2, 0, &i2);
-
-  while( p1 && p2 ){
-    tdsqlite3_int64 iDiff = DOCID_CMP(i1, i2);
-    if( iDiff==0 ){
-      char *pSave = p;
-      tdsqlite3_int64 iPrevSave = iPrev;
-      int bFirstOutSave = bFirstOut;
-
-      fts3PutDeltaVarint3(&p, bDescDoclist, &iPrev, &bFirstOut, i1);
-      if( 0==fts3PoslistPhraseMerge(&p, nDist, 0, 1, &p1, &p2) ){
-        p = pSave;
-        iPrev = iPrevSave;
-        bFirstOut = bFirstOutSave;
-      }
-      fts3GetDeltaVarint3(&p1, pEnd1, bDescDoclist, &i1);
-      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
-    }else if( iDiff<0 ){
-      fts3PoslistCopy(0, &p1);
-      fts3GetDeltaVarint3(&p1, pEnd1, bDescDoclist, &i1);
-    }else{
-      fts3PoslistCopy(0, &p2);
-      fts3GetDeltaVarint3(&p2, pEnd2, bDescDoclist, &i2);
-    }
-  }
-
-  *pnRight = (int)(p - aOut);
-  if( bDescDoclist ){
-    tdsqlite3_free(aRight);
-    *paRight = aOut;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Argument pList points to a position list nList bytes in size. This
-** function checks to see if the position list contains any entries for
-** a token in position 0 (of any column). If so, it writes argument iDelta
-** to the output buffer pOut, followed by a position list consisting only
-** of the entries from pList at position 0, and terminated by an 0x00 byte.
-** The value returned is the number of bytes written to pOut (if any).
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3FirstFilter(
-  tdsqlite3_int64 iDelta,           /* Varint that may be written to pOut */
-  char *pList,                    /* Position list (no 0x00 term) */
-  int nList,                      /* Size of pList in bytes */
-  char *pOut                      /* Write output here */
-){
-  int nOut = 0;
-  int bWritten = 0;               /* True once iDelta has been written */
-  char *p = pList;
-  char *pEnd = &pList[nList];
-
-  if( *p!=0x01 ){
-    if( *p==0x02 ){
-      nOut += tdsqlite3Fts3PutVarint(&pOut[nOut], iDelta);
-      pOut[nOut++] = 0x02;
-      bWritten = 1;
-    }
-    fts3ColumnlistCopy(0, &p);
-  }
-
-  while( p<pEnd ){
-    tdsqlite3_int64 iCol;
-    p++;
-    p += tdsqlite3Fts3GetVarint(p, &iCol);
-    if( *p==0x02 ){
-      if( bWritten==0 ){
-        nOut += tdsqlite3Fts3PutVarint(&pOut[nOut], iDelta);
-        bWritten = 1;
-      }
-      pOut[nOut++] = 0x01;
-      nOut += tdsqlite3Fts3PutVarint(&pOut[nOut], iCol);
-      pOut[nOut++] = 0x02;
-    }
-    fts3ColumnlistCopy(0, &p);
-  }
-  if( bWritten ){
-    pOut[nOut++] = 0x00;
-  }
-
-  return nOut;
-}
-
-
-/*
-** Merge all doclists in the TermSelect.aaOutput[] array into a single
-** doclist stored in TermSelect.aaOutput[0]. If successful, delete all
-** other doclists (except the aaOutput[0] one) and return SQLITE_OK.
-**
-** If an OOM error occurs, return SQLITE_NOMEM. In this case it is
-** the responsibility of the caller to free any doclists left in the
-** TermSelect.aaOutput[] array.
-*/
-static int fts3TermSelectFinishMerge(Fts3Table *p, TermSelect *pTS){
-  char *aOut = 0;
-  int nOut = 0;
-  int i;
-
-  /* Loop through the doclists in the aaOutput[] array. Merge them all
-  ** into a single doclist.
-  */
-  for(i=0; i<SizeofArray(pTS->aaOutput); i++){
-    if( pTS->aaOutput[i] ){
-      if( !aOut ){
-        aOut = pTS->aaOutput[i];
-        nOut = pTS->anOutput[i];
-        pTS->aaOutput[i] = 0;
-      }else{
-        int nNew;
-        char *aNew;
-
-        int rc = fts3DoclistOrMerge(p->bDescIdx, 
-            pTS->aaOutput[i], pTS->anOutput[i], aOut, nOut, &aNew, &nNew
-        );
-        if( rc!=SQLITE_OK ){
-          tdsqlite3_free(aOut);
-          return rc;
-        }
-
-        tdsqlite3_free(pTS->aaOutput[i]);
-        tdsqlite3_free(aOut);
-        pTS->aaOutput[i] = 0;
-        aOut = aNew;
-        nOut = nNew;
-      }
-    }
-  }
-
-  pTS->aaOutput[0] = aOut;
-  pTS->anOutput[0] = nOut;
-  return SQLITE_OK;
-}
-
-/*
-** Merge the doclist aDoclist/nDoclist into the TermSelect object passed
-** as the first argument. The merge is an "OR" merge (see function
-** fts3DoclistOrMerge() for details).
-**
-** This function is called with the doclist for each term that matches
-** a queried prefix. It merges all these doclists into one, the doclist
-** for the specified prefix. Since there can be a very large number of
-** doclists to merge, the merging is done pair-wise using the TermSelect
-** object.
-**
-** This function returns SQLITE_OK if the merge is successful, or an
-** SQLite error code (SQLITE_NOMEM) if an error occurs.
-*/
-static int fts3TermSelectMerge(
-  Fts3Table *p,                   /* FTS table handle */
-  TermSelect *pTS,                /* TermSelect object to merge into */
-  char *aDoclist,                 /* Pointer to doclist */
-  int nDoclist                    /* Size of aDoclist in bytes */
-){
-  if( pTS->aaOutput[0]==0 ){
-    /* If this is the first term selected, copy the doclist to the output
-    ** buffer using memcpy(). 
-    **
-    ** Add FTS3_VARINT_MAX bytes of unused space to the end of the 
-    ** allocation. This is so as to ensure that the buffer is big enough
-    ** to hold the current doclist AND'd with any other doclist. If the
-    ** doclists are stored in order=ASC order, this padding would not be
-    ** required (since the size of [doclistA AND doclistB] is always less
-    ** than or equal to the size of [doclistA] in that case). But this is
-    ** not true for order=DESC. For example, a doclist containing (1, -1) 
-    ** may be smaller than (-1), as in the first example the -1 may be stored
-    ** as a single-byte delta, whereas in the second it must be stored as a
-    ** FTS3_VARINT_MAX byte varint.
-    **
-    ** Similar padding is added in the fts3DoclistOrMerge() function.
-    */
-    pTS->aaOutput[0] = tdsqlite3_malloc(nDoclist + FTS3_VARINT_MAX + 1);
-    pTS->anOutput[0] = nDoclist;
-    if( pTS->aaOutput[0] ){
-      memcpy(pTS->aaOutput[0], aDoclist, nDoclist);
-      memset(&pTS->aaOutput[0][nDoclist], 0, FTS3_VARINT_MAX);
-    }else{
-      return SQLITE_NOMEM;
-    }
-  }else{
-    char *aMerge = aDoclist;
-    int nMerge = nDoclist;
-    int iOut;
-
-    for(iOut=0; iOut<SizeofArray(pTS->aaOutput); iOut++){
-      if( pTS->aaOutput[iOut]==0 ){
-        assert( iOut>0 );
-        pTS->aaOutput[iOut] = aMerge;
-        pTS->anOutput[iOut] = nMerge;
-        break;
-      }else{
-        char *aNew;
-        int nNew;
-
-        int rc = fts3DoclistOrMerge(p->bDescIdx, aMerge, nMerge, 
-            pTS->aaOutput[iOut], pTS->anOutput[iOut], &aNew, &nNew
-        );
-        if( rc!=SQLITE_OK ){
-          if( aMerge!=aDoclist ) tdsqlite3_free(aMerge);
-          return rc;
-        }
-
-        if( aMerge!=aDoclist ) tdsqlite3_free(aMerge);
-        tdsqlite3_free(pTS->aaOutput[iOut]);
-        pTS->aaOutput[iOut] = 0;
-  
-        aMerge = aNew;
-        nMerge = nNew;
-        if( (iOut+1)==SizeofArray(pTS->aaOutput) ){
-          pTS->aaOutput[iOut] = aMerge;
-          pTS->anOutput[iOut] = nMerge;
-        }
-      }
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Append SegReader object pNew to the end of the pCsr->apSegment[] array.
-*/
-static int fts3SegReaderCursorAppend(
-  Fts3MultiSegReader *pCsr, 
-  Fts3SegReader *pNew
-){
-  if( (pCsr->nSegment%16)==0 ){
-    Fts3SegReader **apNew;
-    tdsqlite3_int64 nByte = (pCsr->nSegment + 16)*sizeof(Fts3SegReader*);
-    apNew = (Fts3SegReader **)tdsqlite3_realloc64(pCsr->apSegment, nByte);
-    if( !apNew ){
-      tdsqlite3Fts3SegReaderFree(pNew);
-      return SQLITE_NOMEM;
-    }
-    pCsr->apSegment = apNew;
-  }
-  pCsr->apSegment[pCsr->nSegment++] = pNew;
-  return SQLITE_OK;
-}
-
-/*
-** Add seg-reader objects to the Fts3MultiSegReader object passed as the
-** 8th argument.
-**
-** This function returns SQLITE_OK if successful, or an SQLite error code
-** otherwise.
-*/
-static int fts3SegReaderCursor(
-  Fts3Table *p,                   /* FTS3 table handle */
-  int iLangid,                    /* Language id */
-  int iIndex,                     /* Index to search (from 0 to p->nIndex-1) */
-  int iLevel,                     /* Level of segments to scan */
-  const char *zTerm,              /* Term to query for */
-  int nTerm,                      /* Size of zTerm in bytes */
-  int isPrefix,                   /* True for a prefix search */
-  int isScan,                     /* True to scan from zTerm to EOF */
-  Fts3MultiSegReader *pCsr        /* Cursor object to populate */
-){
-  int rc = SQLITE_OK;             /* Error code */
-  tdsqlite3_stmt *pStmt = 0;        /* Statement to iterate through segments */
-  int rc2;                        /* Result of tdsqlite3_reset() */
-
-  /* If iLevel is less than 0 and this is not a scan, include a seg-reader 
-  ** for the pending-terms. If this is a scan, then this call must be being
-  ** made by an fts4aux module, not an FTS table. In this case calling
-  ** Fts3SegReaderPending might segfault, as the data structures used by 
-  ** fts4aux are not completely populated. So it's easiest to filter these
-  ** calls out here.  */
-  if( iLevel<0 && p->aIndex && p->iPrevLangid==iLangid ){
-    Fts3SegReader *pSeg = 0;
-    rc = tdsqlite3Fts3SegReaderPending(p, iIndex, zTerm, nTerm, isPrefix||isScan, &pSeg);
-    if( rc==SQLITE_OK && pSeg ){
-      rc = fts3SegReaderCursorAppend(pCsr, pSeg);
-    }
-  }
-
-  if( iLevel!=FTS3_SEGCURSOR_PENDING ){
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3Fts3AllSegdirs(p, iLangid, iIndex, iLevel, &pStmt);
-    }
-
-    while( rc==SQLITE_OK && SQLITE_ROW==(rc = tdsqlite3_step(pStmt)) ){
-      Fts3SegReader *pSeg = 0;
-
-      /* Read the values returned by the SELECT into local variables. */
-      tdsqlite3_int64 iStartBlock = tdsqlite3_column_int64(pStmt, 1);
-      tdsqlite3_int64 iLeavesEndBlock = tdsqlite3_column_int64(pStmt, 2);
-      tdsqlite3_int64 iEndBlock = tdsqlite3_column_int64(pStmt, 3);
-      int nRoot = tdsqlite3_column_bytes(pStmt, 4);
-      char const *zRoot = tdsqlite3_column_blob(pStmt, 4);
-
-      /* If zTerm is not NULL, and this segment is not stored entirely on its
-      ** root node, the range of leaves scanned can be reduced. Do this. */
-      if( iStartBlock && zTerm && zRoot ){
-        tdsqlite3_int64 *pi = (isPrefix ? &iLeavesEndBlock : 0);
-        rc = fts3SelectLeaf(p, zTerm, nTerm, zRoot, nRoot, &iStartBlock, pi);
-        if( rc!=SQLITE_OK ) goto finished;
-        if( isPrefix==0 && isScan==0 ) iLeavesEndBlock = iStartBlock;
-      }
- 
-      rc = tdsqlite3Fts3SegReaderNew(pCsr->nSegment+1, 
-          (isPrefix==0 && isScan==0),
-          iStartBlock, iLeavesEndBlock, 
-          iEndBlock, zRoot, nRoot, &pSeg
-      );
-      if( rc!=SQLITE_OK ) goto finished;
-      rc = fts3SegReaderCursorAppend(pCsr, pSeg);
-    }
-  }
-
- finished:
-  rc2 = tdsqlite3_reset(pStmt);
-  if( rc==SQLITE_DONE ) rc = rc2;
-
-  return rc;
-}
-
-/*
-** Set up a cursor object for iterating through a full-text index or a 
-** single level therein.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderCursor(
-  Fts3Table *p,                   /* FTS3 table handle */
-  int iLangid,                    /* Language-id to search */
-  int iIndex,                     /* Index to search (from 0 to p->nIndex-1) */
-  int iLevel,                     /* Level of segments to scan */
-  const char *zTerm,              /* Term to query for */
-  int nTerm,                      /* Size of zTerm in bytes */
-  int isPrefix,                   /* True for a prefix search */
-  int isScan,                     /* True to scan from zTerm to EOF */
-  Fts3MultiSegReader *pCsr       /* Cursor object to populate */
-){
-  assert( iIndex>=0 && iIndex<p->nIndex );
-  assert( iLevel==FTS3_SEGCURSOR_ALL
-      ||  iLevel==FTS3_SEGCURSOR_PENDING 
-      ||  iLevel>=0
-  );
-  assert( iLevel<FTS3_SEGDIR_MAXLEVEL );
-  assert( FTS3_SEGCURSOR_ALL<0 && FTS3_SEGCURSOR_PENDING<0 );
-  assert( isPrefix==0 || isScan==0 );
-
-  memset(pCsr, 0, sizeof(Fts3MultiSegReader));
-  return fts3SegReaderCursor(
-      p, iLangid, iIndex, iLevel, zTerm, nTerm, isPrefix, isScan, pCsr
-  );
-}
-
-/*
-** In addition to its current configuration, have the Fts3MultiSegReader
-** passed as the 4th argument also scan the doclist for term zTerm/nTerm.
-**
-** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
-*/
-static int fts3SegReaderCursorAddZero(
-  Fts3Table *p,                   /* FTS virtual table handle */
-  int iLangid,
-  const char *zTerm,              /* Term to scan doclist of */
-  int nTerm,                      /* Number of bytes in zTerm */
-  Fts3MultiSegReader *pCsr        /* Fts3MultiSegReader to modify */
-){
-  return fts3SegReaderCursor(p, 
-      iLangid, 0, FTS3_SEGCURSOR_ALL, zTerm, nTerm, 0, 0,pCsr
-  );
-}
-
-/*
-** Open an Fts3MultiSegReader to scan the doclist for term zTerm/nTerm. Or,
-** if isPrefix is true, to scan the doclist for all terms for which 
-** zTerm/nTerm is a prefix. If successful, return SQLITE_OK and write
-** a pointer to the new Fts3MultiSegReader to *ppSegcsr. Otherwise, return
-** an SQLite error code.
-**
-** It is the responsibility of the caller to free this object by eventually
-** passing it to fts3SegReaderCursorFree() 
-**
-** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
-** Output parameter *ppSegcsr is set to 0 if an error occurs.
-*/
-static int fts3TermSegReaderCursor(
-  Fts3Cursor *pCsr,               /* Virtual table cursor handle */
-  const char *zTerm,              /* Term to query for */
-  int nTerm,                      /* Size of zTerm in bytes */
-  int isPrefix,                   /* True for a prefix search */
-  Fts3MultiSegReader **ppSegcsr   /* OUT: Allocated seg-reader cursor */
-){
-  Fts3MultiSegReader *pSegcsr;    /* Object to allocate and return */
-  int rc = SQLITE_NOMEM;          /* Return code */
-
-  pSegcsr = tdsqlite3_malloc(sizeof(Fts3MultiSegReader));
-  if( pSegcsr ){
-    int i;
-    int bFound = 0;               /* True once an index has been found */
-    Fts3Table *p = (Fts3Table *)pCsr->base.pVtab;
-
-    if( isPrefix ){
-      for(i=1; bFound==0 && i<p->nIndex; i++){
-        if( p->aIndex[i].nPrefix==nTerm ){
-          bFound = 1;
-          rc = tdsqlite3Fts3SegReaderCursor(p, pCsr->iLangid, 
-              i, FTS3_SEGCURSOR_ALL, zTerm, nTerm, 0, 0, pSegcsr
-          );
-          pSegcsr->bLookup = 1;
-        }
-      }
-
-      for(i=1; bFound==0 && i<p->nIndex; i++){
-        if( p->aIndex[i].nPrefix==nTerm+1 ){
-          bFound = 1;
-          rc = tdsqlite3Fts3SegReaderCursor(p, pCsr->iLangid, 
-              i, FTS3_SEGCURSOR_ALL, zTerm, nTerm, 1, 0, pSegcsr
-          );
-          if( rc==SQLITE_OK ){
-            rc = fts3SegReaderCursorAddZero(
-                p, pCsr->iLangid, zTerm, nTerm, pSegcsr
-            );
-          }
-        }
-      }
-    }
-
-    if( bFound==0 ){
-      rc = tdsqlite3Fts3SegReaderCursor(p, pCsr->iLangid, 
-          0, FTS3_SEGCURSOR_ALL, zTerm, nTerm, isPrefix, 0, pSegcsr
-      );
-      pSegcsr->bLookup = !isPrefix;
-    }
-  }
-
-  *ppSegcsr = pSegcsr;
-  return rc;
-}
-
-/*
-** Free an Fts3MultiSegReader allocated by fts3TermSegReaderCursor().
-*/
-static void fts3SegReaderCursorFree(Fts3MultiSegReader *pSegcsr){
-  tdsqlite3Fts3SegReaderFinish(pSegcsr);
-  tdsqlite3_free(pSegcsr);
-}
-
-/*
-** This function retrieves the doclist for the specified term (or term
-** prefix) from the database.
-*/
-static int fts3TermSelect(
-  Fts3Table *p,                   /* Virtual table handle */
-  Fts3PhraseToken *pTok,          /* Token to query for */
-  int iColumn,                    /* Column to query (or -ve for all columns) */
-  int *pnOut,                     /* OUT: Size of buffer at *ppOut */
-  char **ppOut                    /* OUT: Malloced result buffer */
-){
-  int rc;                         /* Return code */
-  Fts3MultiSegReader *pSegcsr;    /* Seg-reader cursor for this term */
-  TermSelect tsc;                 /* Object for pair-wise doclist merging */
-  Fts3SegFilter filter;           /* Segment term filter configuration */
-
-  pSegcsr = pTok->pSegcsr;
-  memset(&tsc, 0, sizeof(TermSelect));
-
-  filter.flags = FTS3_SEGMENT_IGNORE_EMPTY | FTS3_SEGMENT_REQUIRE_POS
-        | (pTok->isPrefix ? FTS3_SEGMENT_PREFIX : 0)
-        | (pTok->bFirst ? FTS3_SEGMENT_FIRST : 0)
-        | (iColumn<p->nColumn ? FTS3_SEGMENT_COLUMN_FILTER : 0);
-  filter.iCol = iColumn;
-  filter.zTerm = pTok->z;
-  filter.nTerm = pTok->n;
-
-  rc = tdsqlite3Fts3SegReaderStart(p, pSegcsr, &filter);
-  while( SQLITE_OK==rc
-      && SQLITE_ROW==(rc = tdsqlite3Fts3SegReaderStep(p, pSegcsr)) 
-  ){
-    rc = fts3TermSelectMerge(p, &tsc, pSegcsr->aDoclist, pSegcsr->nDoclist);
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = fts3TermSelectFinishMerge(p, &tsc);
-  }
-  if( rc==SQLITE_OK ){
-    *ppOut = tsc.aaOutput[0];
-    *pnOut = tsc.anOutput[0];
-  }else{
-    int i;
-    for(i=0; i<SizeofArray(tsc.aaOutput); i++){
-      tdsqlite3_free(tsc.aaOutput[i]);
-    }
-  }
-
-  fts3SegReaderCursorFree(pSegcsr);
-  pTok->pSegcsr = 0;
-  return rc;
-}
-
-/*
-** This function counts the total number of docids in the doclist stored
-** in buffer aList[], size nList bytes.
-**
-** If the isPoslist argument is true, then it is assumed that the doclist
-** contains a position-list following each docid. Otherwise, it is assumed
-** that the doclist is simply a list of docids stored as delta encoded 
-** varints.
-*/
-static int fts3DoclistCountDocids(char *aList, int nList){
-  int nDoc = 0;                   /* Return value */
-  if( aList ){
-    char *aEnd = &aList[nList];   /* Pointer to one byte after EOF */
-    char *p = aList;              /* Cursor */
-    while( p<aEnd ){
-      nDoc++;
-      while( (*p++)&0x80 );     /* Skip docid varint */
-      fts3PoslistCopy(0, &p);   /* Skip over position list */
-    }
-  }
-
-  return nDoc;
-}
-
-/*
-** Advance the cursor to the next row in the %_content table that
-** matches the search criteria.  For a MATCH search, this will be
-** the next row that matches. For a full-table scan, this will be
-** simply the next row in the %_content table.  For a docid lookup,
-** this routine simply sets the EOF flag.
-**
-** Return SQLITE_OK if nothing goes wrong.  SQLITE_OK is returned
-** even if we reach end-of-file.  The fts3EofMethod() will be called
-** subsequently to determine whether or not an EOF was hit.
-*/
-static int fts3NextMethod(tdsqlite3_vtab_cursor *pCursor){
-  int rc;
-  Fts3Cursor *pCsr = (Fts3Cursor *)pCursor;
-  if( pCsr->eSearch==FTS3_DOCID_SEARCH || pCsr->eSearch==FTS3_FULLSCAN_SEARCH ){
-    Fts3Table *pTab = (Fts3Table*)pCursor->pVtab;
-    pTab->bLock++;
-    if( SQLITE_ROW!=tdsqlite3_step(pCsr->pStmt) ){
-      pCsr->isEof = 1;
-      rc = tdsqlite3_reset(pCsr->pStmt);
-    }else{
-      pCsr->iPrevId = tdsqlite3_column_int64(pCsr->pStmt, 0);
-      rc = SQLITE_OK;
-    }
-    pTab->bLock--;
-  }else{
-    rc = fts3EvalNext((Fts3Cursor *)pCursor);
-  }
-  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
-  return rc;
-}
-
-/*
-** If the numeric type of argument pVal is "integer", then return it
-** converted to a 64-bit signed integer. Otherwise, return a copy of
-** the second parameter, iDefault.
-*/
-static tdsqlite3_int64 fts3DocidRange(tdsqlite3_value *pVal, i64 iDefault){
-  if( pVal ){
-    int eType = tdsqlite3_value_numeric_type(pVal);
-    if( eType==SQLITE_INTEGER ){
-      return tdsqlite3_value_int64(pVal);
-    }
-  }
-  return iDefault;
-}
-
-/*
-** This is the xFilter interface for the virtual table.  See
-** the virtual table xFilter method documentation for additional
-** information.
-**
-** If idxNum==FTS3_FULLSCAN_SEARCH then do a full table scan against
-** the %_content table.
-**
-** If idxNum==FTS3_DOCID_SEARCH then do a docid lookup for a single entry
-** in the %_content table.
-**
-** If idxNum>=FTS3_FULLTEXT_SEARCH then use the full text index.  The
-** column on the left-hand side of the MATCH operator is column
-** number idxNum-FTS3_FULLTEXT_SEARCH, 0 indexed.  argv[0] is the right-hand
-** side of the MATCH operator.
-*/
-static int fts3FilterMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
-  int idxNum,                     /* Strategy index */
-  const char *idxStr,             /* Unused */
-  int nVal,                       /* Number of elements in apVal */
-  tdsqlite3_value **apVal           /* Arguments for the indexing scheme */
-){
-  int rc = SQLITE_OK;
-  char *zSql;                     /* SQL statement used to access %_content */
-  int eSearch;
-  Fts3Table *p = (Fts3Table *)pCursor->pVtab;
-  Fts3Cursor *pCsr = (Fts3Cursor *)pCursor;
-
-  tdsqlite3_value *pCons = 0;       /* The MATCH or rowid constraint, if any */
-  tdsqlite3_value *pLangid = 0;     /* The "langid = ?" constraint, if any */
-  tdsqlite3_value *pDocidGe = 0;    /* The "docid >= ?" constraint, if any */
-  tdsqlite3_value *pDocidLe = 0;    /* The "docid <= ?" constraint, if any */
-  int iIdx;
-
-  UNUSED_PARAMETER(idxStr);
-  UNUSED_PARAMETER(nVal);
-
-  if( p->bLock ){
-    return SQLITE_ERROR;
-  }
-
-  eSearch = (idxNum & 0x0000FFFF);
-  assert( eSearch>=0 && eSearch<=(FTS3_FULLTEXT_SEARCH+p->nColumn) );
-  assert( p->pSegments==0 );
-
-  /* Collect arguments into local variables */
-  iIdx = 0;
-  if( eSearch!=FTS3_FULLSCAN_SEARCH ) pCons = apVal[iIdx++];
-  if( idxNum & FTS3_HAVE_LANGID ) pLangid = apVal[iIdx++];
-  if( idxNum & FTS3_HAVE_DOCID_GE ) pDocidGe = apVal[iIdx++];
-  if( idxNum & FTS3_HAVE_DOCID_LE ) pDocidLe = apVal[iIdx++];
-  assert( iIdx==nVal );
-
-  /* In case the cursor has been used before, clear it now. */
-  fts3ClearCursor(pCsr);
-
-  /* Set the lower and upper bounds on docids to return */
-  pCsr->iMinDocid = fts3DocidRange(pDocidGe, SMALLEST_INT64);
-  pCsr->iMaxDocid = fts3DocidRange(pDocidLe, LARGEST_INT64);
-
-  if( idxStr ){
-    pCsr->bDesc = (idxStr[0]=='D');
-  }else{
-    pCsr->bDesc = p->bDescIdx;
-  }
-  pCsr->eSearch = (i16)eSearch;
-
-  if( eSearch!=FTS3_DOCID_SEARCH && eSearch!=FTS3_FULLSCAN_SEARCH ){
-    int iCol = eSearch-FTS3_FULLTEXT_SEARCH;
-    const char *zQuery = (const char *)tdsqlite3_value_text(pCons);
-
-    if( zQuery==0 && tdsqlite3_value_type(pCons)!=SQLITE_NULL ){
-      return SQLITE_NOMEM;
-    }
-
-    pCsr->iLangid = 0;
-    if( pLangid ) pCsr->iLangid = tdsqlite3_value_int(pLangid);
-
-    assert( p->base.zErrMsg==0 );
-    rc = tdsqlite3Fts3ExprParse(p->pTokenizer, pCsr->iLangid,
-        p->azColumn, p->bFts4, p->nColumn, iCol, zQuery, -1, &pCsr->pExpr, 
-        &p->base.zErrMsg
-    );
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-
-    rc = fts3EvalStart(pCsr);
-    tdsqlite3Fts3SegmentsClose(p);
-    if( rc!=SQLITE_OK ) return rc;
-    pCsr->pNextId = pCsr->aDoclist;
-    pCsr->iPrevId = 0;
-  }
-
-  /* Compile a SELECT statement for this cursor. For a full-table-scan, the
-  ** statement loops through all rows of the %_content table. For a
-  ** full-text query or docid lookup, the statement retrieves a single
-  ** row by docid.
-  */
-  if( eSearch==FTS3_FULLSCAN_SEARCH ){
-    if( pDocidGe || pDocidLe ){
-      zSql = tdsqlite3_mprintf(
-          "SELECT %s WHERE rowid BETWEEN %lld AND %lld ORDER BY rowid %s",
-          p->zReadExprlist, pCsr->iMinDocid, pCsr->iMaxDocid,
-          (pCsr->bDesc ? "DESC" : "ASC")
-      );
-    }else{
-      zSql = tdsqlite3_mprintf("SELECT %s ORDER BY rowid %s", 
-          p->zReadExprlist, (pCsr->bDesc ? "DESC" : "ASC")
-      );
-    }
-    if( zSql ){
-      p->bLock++;
-      rc = tdsqlite3_prepare_v3(
-          p->db,zSql,-1,SQLITE_PREPARE_PERSISTENT,&pCsr->pStmt,0
-      );
-      p->bLock--;
-      tdsqlite3_free(zSql);
-    }else{
-      rc = SQLITE_NOMEM;
-    }
-  }else if( eSearch==FTS3_DOCID_SEARCH ){
-    rc = fts3CursorSeekStmt(pCsr);
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3_bind_value(pCsr->pStmt, 1, pCons);
-    }
-  }
-  if( rc!=SQLITE_OK ) return rc;
-
-  return fts3NextMethod(pCursor);
-}
-
-/* 
-** This is the xEof method of the virtual table. SQLite calls this 
-** routine to find out if it has reached the end of a result set.
-*/
-static int fts3EofMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts3Cursor *pCsr = (Fts3Cursor*)pCursor;
-  if( pCsr->isEof ){
-    fts3ClearCursor(pCsr);
-    pCsr->isEof = 1;
-  }
-  return pCsr->isEof;
-}
-
-/* 
-** This is the xRowid method. The SQLite core calls this routine to
-** retrieve the rowid for the current row of the result set. fts3
-** exposes %_content.docid as the rowid for the virtual table. The
-** rowid should be written to *pRowid.
-*/
-static int fts3RowidMethod(tdsqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
-  Fts3Cursor *pCsr = (Fts3Cursor *) pCursor;
-  *pRowid = pCsr->iPrevId;
-  return SQLITE_OK;
-}
-
-/* 
-** This is the xColumn method, called by SQLite to request a value from
-** the row that the supplied cursor currently points to.
-**
-** If:
-**
-**   (iCol <  p->nColumn)   -> The value of the iCol'th user column.
-**   (iCol == p->nColumn)   -> Magic column with the same name as the table.
-**   (iCol == p->nColumn+1) -> Docid column
-**   (iCol == p->nColumn+2) -> Langid column
-*/
-static int fts3ColumnMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  tdsqlite3_context *pCtx,          /* Context for tdsqlite3_result_xxx() calls */
-  int iCol                        /* Index of column to read value from */
-){
-  int rc = SQLITE_OK;             /* Return Code */
-  Fts3Cursor *pCsr = (Fts3Cursor *) pCursor;
-  Fts3Table *p = (Fts3Table *)pCursor->pVtab;
-
-  /* The column value supplied by SQLite must be in range. */
-  assert( iCol>=0 && iCol<=p->nColumn+2 );
-
-  switch( iCol-p->nColumn ){
-    case 0:
-      /* The special 'table-name' column */
-      tdsqlite3_result_pointer(pCtx, pCsr, "fts3cursor", 0);
-      break;
-
-    case 1:
-      /* The docid column */
-      tdsqlite3_result_int64(pCtx, pCsr->iPrevId);
-      break;
-
-    case 2:
-      if( pCsr->pExpr ){
-        tdsqlite3_result_int64(pCtx, pCsr->iLangid);
-        break;
-      }else if( p->zLanguageid==0 ){
-        tdsqlite3_result_int(pCtx, 0);
-        break;
-      }else{
-        iCol = p->nColumn;
-        /* fall-through */
-      }
-
-    default:
-      /* A user column. Or, if this is a full-table scan, possibly the
-      ** language-id column. Seek the cursor. */
-      rc = fts3CursorSeek(0, pCsr);
-      if( rc==SQLITE_OK && tdsqlite3_data_count(pCsr->pStmt)-1>iCol ){
-        tdsqlite3_result_value(pCtx, tdsqlite3_column_value(pCsr->pStmt, iCol+1));
-      }
-      break;
-  }
-
-  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
-  return rc;
-}
-
-/* 
-** This function is the implementation of the xUpdate callback used by 
-** FTS3 virtual tables. It is invoked by SQLite each time a row is to be
-** inserted, updated or deleted.
-*/
-static int fts3UpdateMethod(
-  tdsqlite3_vtab *pVtab,            /* Virtual table handle */
-  int nArg,                       /* Size of argument array */
-  tdsqlite3_value **apVal,          /* Array of arguments */
-  sqlite_int64 *pRowid            /* OUT: The affected (or effected) rowid */
-){
-  return tdsqlite3Fts3UpdateMethod(pVtab, nArg, apVal, pRowid);
-}
-
-/*
-** Implementation of xSync() method. Flush the contents of the pending-terms
-** hash-table to the database.
-*/
-static int fts3SyncMethod(tdsqlite3_vtab *pVtab){
-
-  /* Following an incremental-merge operation, assuming that the input
-  ** segments are not completely consumed (the usual case), they are updated
-  ** in place to remove the entries that have already been merged. This
-  ** involves updating the leaf block that contains the smallest unmerged
-  ** entry and each block (if any) between the leaf and the root node. So
-  ** if the height of the input segment b-trees is N, and input segments
-  ** are merged eight at a time, updating the input segments at the end
-  ** of an incremental-merge requires writing (8*(1+N)) blocks. N is usually
-  ** small - often between 0 and 2. So the overhead of the incremental
-  ** merge is somewhere between 8 and 24 blocks. To avoid this overhead
-  ** dwarfing the actual productive work accomplished, the incremental merge
-  ** is only attempted if it will write at least 64 leaf blocks. Hence
-  ** nMinMerge.
-  **
-  ** Of course, updating the input segments also involves deleting a bunch
-  ** of blocks from the segments table. But this is not considered overhead
-  ** as it would also be required by a crisis-merge that used the same input 
-  ** segments.
-  */
-  const u32 nMinMerge = 64;       /* Minimum amount of incr-merge work to do */
-
-  Fts3Table *p = (Fts3Table*)pVtab;
-  int rc;
-  i64 iLastRowid = tdsqlite3_last_insert_rowid(p->db);
-
-  rc = tdsqlite3Fts3PendingTermsFlush(p);
-  if( rc==SQLITE_OK 
-   && p->nLeafAdd>(nMinMerge/16) 
-   && p->nAutoincrmerge && p->nAutoincrmerge!=0xff
-  ){
-    int mxLevel = 0;              /* Maximum relative level value in db */
-    int A;                        /* Incr-merge parameter A */
-
-    rc = tdsqlite3Fts3MaxLevel(p, &mxLevel);
-    assert( rc==SQLITE_OK || mxLevel==0 );
-    A = p->nLeafAdd * mxLevel;
-    A += (A/2);
-    if( A>(int)nMinMerge ) rc = tdsqlite3Fts3Incrmerge(p, A, p->nAutoincrmerge);
-  }
-  tdsqlite3Fts3SegmentsClose(p);
-  tdsqlite3_set_last_insert_rowid(p->db, iLastRowid);
-  return rc;
-}
-
-/*
-** If it is currently unknown whether or not the FTS table has an %_stat
-** table (if p->bHasStat==2), attempt to determine this (set p->bHasStat
-** to 0 or 1). Return SQLITE_OK if successful, or an SQLite error code
-** if an error occurs.
-*/
-static int fts3SetHasStat(Fts3Table *p){
-  int rc = SQLITE_OK;
-  if( p->bHasStat==2 ){
-    char *zTbl = tdsqlite3_mprintf("%s_stat", p->zName);
-    if( zTbl ){
-      int res = tdsqlite3_table_column_metadata(p->db, p->zDb, zTbl, 0,0,0,0,0,0);
-      tdsqlite3_free(zTbl);
-      p->bHasStat = (res==SQLITE_OK);
-    }else{
-      rc = SQLITE_NOMEM;
-    }
-  }
-  return rc;
-}
-
-/*
-** Implementation of xBegin() method. 
-*/
-static int fts3BeginMethod(tdsqlite3_vtab *pVtab){
-  Fts3Table *p = (Fts3Table*)pVtab;
-  UNUSED_PARAMETER(pVtab);
-  assert( p->pSegments==0 );
-  assert( p->nPendingData==0 );
-  assert( p->inTransaction!=1 );
-  TESTONLY( p->inTransaction = 1 );
-  TESTONLY( p->mxSavepoint = -1; );
-  p->nLeafAdd = 0;
-  return fts3SetHasStat(p);
-}
-
-/*
-** Implementation of xCommit() method. This is a no-op. The contents of
-** the pending-terms hash-table have already been flushed into the database
-** by fts3SyncMethod().
-*/
-static int fts3CommitMethod(tdsqlite3_vtab *pVtab){
-  TESTONLY( Fts3Table *p = (Fts3Table*)pVtab );
-  UNUSED_PARAMETER(pVtab);
-  assert( p->nPendingData==0 );
-  assert( p->inTransaction!=0 );
-  assert( p->pSegments==0 );
-  TESTONLY( p->inTransaction = 0 );
-  TESTONLY( p->mxSavepoint = -1; );
-  return SQLITE_OK;
-}
-
-/*
-** Implementation of xRollback(). Discard the contents of the pending-terms
-** hash-table. Any changes made to the database are reverted by SQLite.
-*/
-static int fts3RollbackMethod(tdsqlite3_vtab *pVtab){
-  Fts3Table *p = (Fts3Table*)pVtab;
-  tdsqlite3Fts3PendingTermsClear(p);
-  assert( p->inTransaction!=0 );
-  TESTONLY( p->inTransaction = 0 );
-  TESTONLY( p->mxSavepoint = -1; );
-  return SQLITE_OK;
-}
-
-/*
-** When called, *ppPoslist must point to the byte immediately following the
-** end of a position-list. i.e. ( (*ppPoslist)[-1]==POS_END ). This function
-** moves *ppPoslist so that it instead points to the first byte of the
-** same position list.
-*/
-static void fts3ReversePoslist(char *pStart, char **ppPoslist){
-  char *p = &(*ppPoslist)[-2];
-  char c = 0;
-
-  /* Skip backwards passed any trailing 0x00 bytes added by NearTrim() */
-  while( p>pStart && (c=*p--)==0 );
-
-  /* Search backwards for a varint with value zero (the end of the previous 
-  ** poslist). This is an 0x00 byte preceded by some byte that does not
-  ** have the 0x80 bit set.  */
-  while( p>pStart && (*p & 0x80) | c ){ 
-    c = *p--; 
-  }
-  assert( p==pStart || c==0 );
-
-  /* At this point p points to that preceding byte without the 0x80 bit
-  ** set. So to find the start of the poslist, skip forward 2 bytes then
-  ** over a varint. 
-  **
-  ** Normally. The other case is that p==pStart and the poslist to return
-  ** is the first in the doclist. In this case do not skip forward 2 bytes.
-  ** The second part of the if condition (c==0 && *ppPoslist>&p[2])
-  ** is required for cases where the first byte of a doclist and the
-  ** doclist is empty. For example, if the first docid is 10, a doclist
-  ** that begins with:
-  **
-  **   0x0A 0x00 <next docid delta varint>
-  */
-  if( p>pStart || (c==0 && *ppPoslist>&p[2]) ){ p = &p[2]; }
-  while( *p++&0x80 );
-  *ppPoslist = p;
-}
-
-/*
-** Helper function used by the implementation of the overloaded snippet(),
-** offsets() and optimize() SQL functions.
-**
-** If the value passed as the third argument is a blob of size
-** sizeof(Fts3Cursor*), then the blob contents are copied to the 
-** output variable *ppCsr and SQLITE_OK is returned. Otherwise, an error
-** message is written to context pContext and SQLITE_ERROR returned. The
-** string passed via zFunc is used as part of the error message.
-*/
-static int fts3FunctionArg(
-  tdsqlite3_context *pContext,      /* SQL function call context */
-  const char *zFunc,              /* Function name */
-  tdsqlite3_value *pVal,            /* argv[0] passed to function */
-  Fts3Cursor **ppCsr              /* OUT: Store cursor handle here */
-){
-  int rc;
-  *ppCsr = (Fts3Cursor*)tdsqlite3_value_pointer(pVal, "fts3cursor");
-  if( (*ppCsr)!=0 ){
-    rc = SQLITE_OK;
-  }else{
-    char *zErr = tdsqlite3_mprintf("illegal first argument to %s", zFunc);
-    tdsqlite3_result_error(pContext, zErr, -1);
-    tdsqlite3_free(zErr);
-    rc = SQLITE_ERROR;
-  }
-  return rc;
-}
-
-/*
-** Implementation of the snippet() function for FTS3
-*/
-static void fts3SnippetFunc(
-  tdsqlite3_context *pContext,      /* SQLite function call context */
-  int nVal,                       /* Size of apVal[] array */
-  tdsqlite3_value **apVal           /* Array of arguments */
-){
-  Fts3Cursor *pCsr;               /* Cursor handle passed through apVal[0] */
-  const char *zStart = "<b>";
-  const char *zEnd = "</b>";
-  const char *zEllipsis = "<b>...</b>";
-  int iCol = -1;
-  int nToken = 15;                /* Default number of tokens in snippet */
-
-  /* There must be at least one argument passed to this function (otherwise
-  ** the non-overloaded version would have been called instead of this one).
-  */
-  assert( nVal>=1 );
-
-  if( nVal>6 ){
-    tdsqlite3_result_error(pContext, 
-        "wrong number of arguments to function snippet()", -1);
-    return;
-  }
-  if( fts3FunctionArg(pContext, "snippet", apVal[0], &pCsr) ) return;
-
-  switch( nVal ){
-    case 6: nToken = tdsqlite3_value_int(apVal[5]);
-    case 5: iCol = tdsqlite3_value_int(apVal[4]);
-    case 4: zEllipsis = (const char*)tdsqlite3_value_text(apVal[3]);
-    case 3: zEnd = (const char*)tdsqlite3_value_text(apVal[2]);
-    case 2: zStart = (const char*)tdsqlite3_value_text(apVal[1]);
-  }
-  if( !zEllipsis || !zEnd || !zStart ){
-    tdsqlite3_result_error_nomem(pContext);
-  }else if( nToken==0 ){
-    tdsqlite3_result_text(pContext, "", -1, SQLITE_STATIC);
-  }else if( SQLITE_OK==fts3CursorSeek(pContext, pCsr) ){
-    tdsqlite3Fts3Snippet(pContext, pCsr, zStart, zEnd, zEllipsis, iCol, nToken);
-  }
-}
-
-/*
-** Implementation of the offsets() function for FTS3
-*/
-static void fts3OffsetsFunc(
-  tdsqlite3_context *pContext,      /* SQLite function call context */
-  int nVal,                       /* Size of argument array */
-  tdsqlite3_value **apVal           /* Array of arguments */
-){
-  Fts3Cursor *pCsr;               /* Cursor handle passed through apVal[0] */
-
-  UNUSED_PARAMETER(nVal);
-
-  assert( nVal==1 );
-  if( fts3FunctionArg(pContext, "offsets", apVal[0], &pCsr) ) return;
-  assert( pCsr );
-  if( SQLITE_OK==fts3CursorSeek(pContext, pCsr) ){
-    tdsqlite3Fts3Offsets(pContext, pCsr);
-  }
-}
-
-/* 
-** Implementation of the special optimize() function for FTS3. This 
-** function merges all segments in the database to a single segment.
-** Example usage is:
-**
-**   SELECT optimize(t) FROM t LIMIT 1;
-**
-** where 't' is the name of an FTS3 table.
-*/
-static void fts3OptimizeFunc(
-  tdsqlite3_context *pContext,      /* SQLite function call context */
-  int nVal,                       /* Size of argument array */
-  tdsqlite3_value **apVal           /* Array of arguments */
-){
-  int rc;                         /* Return code */
-  Fts3Table *p;                   /* Virtual table handle */
-  Fts3Cursor *pCursor;            /* Cursor handle passed through apVal[0] */
-
-  UNUSED_PARAMETER(nVal);
-
-  assert( nVal==1 );
-  if( fts3FunctionArg(pContext, "optimize", apVal[0], &pCursor) ) return;
-  p = (Fts3Table *)pCursor->base.pVtab;
-  assert( p );
-
-  rc = tdsqlite3Fts3Optimize(p);
-
-  switch( rc ){
-    case SQLITE_OK:
-      tdsqlite3_result_text(pContext, "Index optimized", -1, SQLITE_STATIC);
-      break;
-    case SQLITE_DONE:
-      tdsqlite3_result_text(pContext, "Index already optimal", -1, SQLITE_STATIC);
-      break;
-    default:
-      tdsqlite3_result_error_code(pContext, rc);
-      break;
-  }
-}
-
-/*
-** Implementation of the matchinfo() function for FTS3
-*/
-static void fts3MatchinfoFunc(
-  tdsqlite3_context *pContext,      /* SQLite function call context */
-  int nVal,                       /* Size of argument array */
-  tdsqlite3_value **apVal           /* Array of arguments */
-){
-  Fts3Cursor *pCsr;               /* Cursor handle passed through apVal[0] */
-  assert( nVal==1 || nVal==2 );
-  if( SQLITE_OK==fts3FunctionArg(pContext, "matchinfo", apVal[0], &pCsr) ){
-    const char *zArg = 0;
-    if( nVal>1 ){
-      zArg = (const char *)tdsqlite3_value_text(apVal[1]);
-    }
-    tdsqlite3Fts3Matchinfo(pContext, pCsr, zArg);
-  }
-}
-
-/*
-** This routine implements the xFindFunction method for the FTS3
-** virtual table.
-*/
-static int fts3FindFunctionMethod(
-  tdsqlite3_vtab *pVtab,            /* Virtual table handle */
-  int nArg,                       /* Number of SQL function arguments */
-  const char *zName,              /* Name of SQL function */
-  void (**pxFunc)(tdsqlite3_context*,int,tdsqlite3_value**), /* OUT: Result */
-  void **ppArg                    /* Unused */
-){
-  struct Overloaded {
-    const char *zName;
-    void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**);
-  } aOverload[] = {
-    { "snippet", fts3SnippetFunc },
-    { "offsets", fts3OffsetsFunc },
-    { "optimize", fts3OptimizeFunc },
-    { "matchinfo", fts3MatchinfoFunc },
-  };
-  int i;                          /* Iterator variable */
-
-  UNUSED_PARAMETER(pVtab);
-  UNUSED_PARAMETER(nArg);
-  UNUSED_PARAMETER(ppArg);
-
-  for(i=0; i<SizeofArray(aOverload); i++){
-    if( strcmp(zName, aOverload[i].zName)==0 ){
-      *pxFunc = aOverload[i].xFunc;
-      return 1;
-    }
-  }
-
-  /* No function of the specified name was found. Return 0. */
-  return 0;
-}
-
-/*
-** Implementation of FTS3 xRename method. Rename an fts3 table.
-*/
-static int fts3RenameMethod(
-  tdsqlite3_vtab *pVtab,            /* Virtual table handle */
-  const char *zName               /* New name of table */
-){
-  Fts3Table *p = (Fts3Table *)pVtab;
-  tdsqlite3 *db = p->db;            /* Database connection */
-  int rc;                         /* Return Code */
-
-  /* At this point it must be known if the %_stat table exists or not.
-  ** So bHasStat may not be 2.  */
-  rc = fts3SetHasStat(p);
-  
-  /* As it happens, the pending terms table is always empty here. This is
-  ** because an "ALTER TABLE RENAME TABLE" statement inside a transaction 
-  ** always opens a savepoint transaction. And the xSavepoint() method 
-  ** flushes the pending terms table. But leave the (no-op) call to
-  ** PendingTermsFlush() in in case that changes.
-  */
-  assert( p->nPendingData==0 );
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts3PendingTermsFlush(p);
-  }
-
-  if( p->zContentTbl==0 ){
-    fts3DbExec(&rc, db,
-      "ALTER TABLE %Q.'%q_content'  RENAME TO '%q_content';",
-      p->zDb, p->zName, zName
-    );
-  }
-
-  if( p->bHasDocsize ){
-    fts3DbExec(&rc, db,
-      "ALTER TABLE %Q.'%q_docsize'  RENAME TO '%q_docsize';",
-      p->zDb, p->zName, zName
-    );
-  }
-  if( p->bHasStat ){
-    fts3DbExec(&rc, db,
-      "ALTER TABLE %Q.'%q_stat'  RENAME TO '%q_stat';",
-      p->zDb, p->zName, zName
-    );
-  }
-  fts3DbExec(&rc, db,
-    "ALTER TABLE %Q.'%q_segments' RENAME TO '%q_segments';",
-    p->zDb, p->zName, zName
-  );
-  fts3DbExec(&rc, db,
-    "ALTER TABLE %Q.'%q_segdir'   RENAME TO '%q_segdir';",
-    p->zDb, p->zName, zName
-  );
-  return rc;
-}
-
-/*
-** The xSavepoint() method.
-**
-** Flush the contents of the pending-terms table to disk.
-*/
-static int fts3SavepointMethod(tdsqlite3_vtab *pVtab, int iSavepoint){
-  int rc = SQLITE_OK;
-  UNUSED_PARAMETER(iSavepoint);
-  assert( ((Fts3Table *)pVtab)->inTransaction );
-  assert( ((Fts3Table *)pVtab)->mxSavepoint <= iSavepoint );
-  TESTONLY( ((Fts3Table *)pVtab)->mxSavepoint = iSavepoint );
-  if( ((Fts3Table *)pVtab)->bIgnoreSavepoint==0 ){
-    rc = fts3SyncMethod(pVtab);
-  }
-  return rc;
-}
-
-/*
-** The xRelease() method.
-**
-** This is a no-op.
-*/
-static int fts3ReleaseMethod(tdsqlite3_vtab *pVtab, int iSavepoint){
-  TESTONLY( Fts3Table *p = (Fts3Table*)pVtab );
-  UNUSED_PARAMETER(iSavepoint);
-  UNUSED_PARAMETER(pVtab);
-  assert( p->inTransaction );
-  assert( p->mxSavepoint >= iSavepoint );
-  TESTONLY( p->mxSavepoint = iSavepoint-1 );
-  return SQLITE_OK;
-}
-
-/*
-** The xRollbackTo() method.
-**
-** Discard the contents of the pending terms table.
-*/
-static int fts3RollbackToMethod(tdsqlite3_vtab *pVtab, int iSavepoint){
-  Fts3Table *p = (Fts3Table*)pVtab;
-  UNUSED_PARAMETER(iSavepoint);
-  assert( p->inTransaction );
-  TESTONLY( p->mxSavepoint = iSavepoint );
-  tdsqlite3Fts3PendingTermsClear(p);
-  return SQLITE_OK;
-}
-
-/*
-** Return true if zName is the extension on one of the shadow tables used
-** by this module.
-*/
-static int fts3ShadowName(const char *zName){
-  static const char *azName[] = {
-    "content", "docsize", "segdir", "segments", "stat", 
-  };
-  unsigned int i;
-  for(i=0; i<sizeof(azName)/sizeof(azName[0]); i++){
-    if( tdsqlite3_stricmp(zName, azName[i])==0 ) return 1;
-  }
-  return 0;
-}
-
-static const tdsqlite3_module fts3Module = {
-  /* iVersion      */ 3,
-  /* xCreate       */ fts3CreateMethod,
-  /* xConnect      */ fts3ConnectMethod,
-  /* xBestIndex    */ fts3BestIndexMethod,
-  /* xDisconnect   */ fts3DisconnectMethod,
-  /* xDestroy      */ fts3DestroyMethod,
-  /* xOpen         */ fts3OpenMethod,
-  /* xClose        */ fts3CloseMethod,
-  /* xFilter       */ fts3FilterMethod,
-  /* xNext         */ fts3NextMethod,
-  /* xEof          */ fts3EofMethod,
-  /* xColumn       */ fts3ColumnMethod,
-  /* xRowid        */ fts3RowidMethod,
-  /* xUpdate       */ fts3UpdateMethod,
-  /* xBegin        */ fts3BeginMethod,
-  /* xSync         */ fts3SyncMethod,
-  /* xCommit       */ fts3CommitMethod,
-  /* xRollback     */ fts3RollbackMethod,
-  /* xFindFunction */ fts3FindFunctionMethod,
-  /* xRename */       fts3RenameMethod,
-  /* xSavepoint    */ fts3SavepointMethod,
-  /* xRelease      */ fts3ReleaseMethod,
-  /* xRollbackTo   */ fts3RollbackToMethod,
-  /* xShadowName   */ fts3ShadowName,
-};
-
-/*
-** This function is registered as the module destructor (called when an
-** FTS3 enabled database connection is closed). It frees the memory
-** allocated for the tokenizer hash table.
-*/
-static void hashDestroy(void *p){
-  Fts3Hash *pHash = (Fts3Hash *)p;
-  tdsqlite3Fts3HashClear(pHash);
-  tdsqlite3_free(pHash);
-}
-
-/*
-** The fts3 built-in tokenizers - "simple", "porter" and "icu"- are 
-** implemented in files fts3_tokenizer1.c, fts3_porter.c and fts3_icu.c
-** respectively. The following three forward declarations are for functions
-** declared in these files used to retrieve the respective implementations.
-**
-** Calling tdsqlite3Fts3SimpleTokenizerModule() sets the value pointed
-** to by the argument to point to the "simple" tokenizer implementation.
-** And so on.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3SimpleTokenizerModule(tdsqlite3_tokenizer_module const**ppModule);
-SQLITE_PRIVATE void tdsqlite3Fts3PorterTokenizerModule(tdsqlite3_tokenizer_module const**ppModule);
-#ifndef SQLITE_DISABLE_FTS3_UNICODE
-SQLITE_PRIVATE void tdsqlite3Fts3UnicodeTokenizer(tdsqlite3_tokenizer_module const**ppModule);
-#endif
-#ifdef SQLITE_ENABLE_ICU
-SQLITE_PRIVATE void tdsqlite3Fts3IcuTokenizerModule(tdsqlite3_tokenizer_module const**ppModule);
-#endif
-
-/*
-** Initialize the fts3 extension. If this extension is built as part
-** of the sqlite library, then this function is called directly by
-** SQLite. If fts3 is built as a dynamically loadable extension, this
-** function is called by the tdsqlite3_extension_init() entry point.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3Init(tdsqlite3 *db){
-  int rc = SQLITE_OK;
-  Fts3Hash *pHash = 0;
-  const tdsqlite3_tokenizer_module *pSimple = 0;
-  const tdsqlite3_tokenizer_module *pPorter = 0;
-#ifndef SQLITE_DISABLE_FTS3_UNICODE
-  const tdsqlite3_tokenizer_module *pUnicode = 0;
-#endif
-
-#ifdef SQLITE_ENABLE_ICU
-  const tdsqlite3_tokenizer_module *pIcu = 0;
-  tdsqlite3Fts3IcuTokenizerModule(&pIcu);
-#endif
-
-#ifndef SQLITE_DISABLE_FTS3_UNICODE
-  tdsqlite3Fts3UnicodeTokenizer(&pUnicode);
-#endif
-
-#ifdef SQLITE_TEST
-  rc = tdsqlite3Fts3InitTerm(db);
-  if( rc!=SQLITE_OK ) return rc;
-#endif
-
-  rc = tdsqlite3Fts3InitAux(db);
-  if( rc!=SQLITE_OK ) return rc;
-
-  tdsqlite3Fts3SimpleTokenizerModule(&pSimple);
-  tdsqlite3Fts3PorterTokenizerModule(&pPorter);
-
-  /* Allocate and initialize the hash-table used to store tokenizers. */
-  pHash = tdsqlite3_malloc(sizeof(Fts3Hash));
-  if( !pHash ){
-    rc = SQLITE_NOMEM;
-  }else{
-    tdsqlite3Fts3HashInit(pHash, FTS3_HASH_STRING, 1);
-  }
-
-  /* Load the built-in tokenizers into the hash table */
-  if( rc==SQLITE_OK ){
-    if( tdsqlite3Fts3HashInsert(pHash, "simple", 7, (void *)pSimple)
-     || tdsqlite3Fts3HashInsert(pHash, "porter", 7, (void *)pPorter) 
-
-#ifndef SQLITE_DISABLE_FTS3_UNICODE
-     || tdsqlite3Fts3HashInsert(pHash, "unicode61", 10, (void *)pUnicode) 
-#endif
-#ifdef SQLITE_ENABLE_ICU
-     || (pIcu && tdsqlite3Fts3HashInsert(pHash, "icu", 4, (void *)pIcu))
-#endif
-    ){
-      rc = SQLITE_NOMEM;
-    }
-  }
-
-#ifdef SQLITE_TEST
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts3ExprInitTestInterface(db, pHash);
-  }
-#endif
-
-  /* Create the virtual table wrapper around the hash-table and overload 
-  ** the four scalar functions. If this is successful, register the
-  ** module with sqlite.
-  */
-  if( SQLITE_OK==rc 
-   && SQLITE_OK==(rc = tdsqlite3Fts3InitHashTable(db, pHash, "fts3_tokenizer"))
-   && SQLITE_OK==(rc = tdsqlite3_overload_function(db, "snippet", -1))
-   && SQLITE_OK==(rc = tdsqlite3_overload_function(db, "offsets", 1))
-   && SQLITE_OK==(rc = tdsqlite3_overload_function(db, "matchinfo", 1))
-   && SQLITE_OK==(rc = tdsqlite3_overload_function(db, "matchinfo", 2))
-   && SQLITE_OK==(rc = tdsqlite3_overload_function(db, "optimize", 1))
-  ){
-    rc = tdsqlite3_create_module_v2(
-        db, "fts3", &fts3Module, (void *)pHash, hashDestroy
-    );
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3_create_module_v2(
-          db, "fts4", &fts3Module, (void *)pHash, 0
-      );
-    }
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3Fts3InitTok(db, (void *)pHash);
-    }
-    return rc;
-  }
-
-
-  /* An error has occurred. Delete the hash table and return the error code. */
-  assert( rc!=SQLITE_OK );
-  if( pHash ){
-    tdsqlite3Fts3HashClear(pHash);
-    tdsqlite3_free(pHash);
-  }
-  return rc;
-}
-
-/*
-** Allocate an Fts3MultiSegReader for each token in the expression headed
-** by pExpr. 
-**
-** An Fts3SegReader object is a cursor that can seek or scan a range of
-** entries within a single segment b-tree. An Fts3MultiSegReader uses multiple
-** Fts3SegReader objects internally to provide an interface to seek or scan
-** within the union of all segments of a b-tree. Hence the name.
-**
-** If the allocated Fts3MultiSegReader just seeks to a single entry in a
-** segment b-tree (if the term is not a prefix or it is a prefix for which
-** there exists prefix b-tree of the right length) then it may be traversed
-** and merged incrementally. Otherwise, it has to be merged into an in-memory 
-** doclist and then traversed.
-*/
-static void fts3EvalAllocateReaders(
-  Fts3Cursor *pCsr,               /* FTS cursor handle */
-  Fts3Expr *pExpr,                /* Allocate readers for this expression */
-  int *pnToken,                   /* OUT: Total number of tokens in phrase. */
-  int *pnOr,                      /* OUT: Total number of OR nodes in expr. */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  if( pExpr && SQLITE_OK==*pRc ){
-    if( pExpr->eType==FTSQUERY_PHRASE ){
-      int i;
-      int nToken = pExpr->pPhrase->nToken;
-      *pnToken += nToken;
-      for(i=0; i<nToken; i++){
-        Fts3PhraseToken *pToken = &pExpr->pPhrase->aToken[i];
-        int rc = fts3TermSegReaderCursor(pCsr, 
-            pToken->z, pToken->n, pToken->isPrefix, &pToken->pSegcsr
-        );
-        if( rc!=SQLITE_OK ){
-          *pRc = rc;
-          return;
-        }
-      }
-      assert( pExpr->pPhrase->iDoclistToken==0 );
-      pExpr->pPhrase->iDoclistToken = -1;
-    }else{
-      *pnOr += (pExpr->eType==FTSQUERY_OR);
-      fts3EvalAllocateReaders(pCsr, pExpr->pLeft, pnToken, pnOr, pRc);
-      fts3EvalAllocateReaders(pCsr, pExpr->pRight, pnToken, pnOr, pRc);
-    }
-  }
-}
-
-/*
-** Arguments pList/nList contain the doclist for token iToken of phrase p.
-** It is merged into the main doclist stored in p->doclist.aAll/nAll.
-**
-** This function assumes that pList points to a buffer allocated using
-** tdsqlite3_malloc(). This function takes responsibility for eventually
-** freeing the buffer.
-**
-** SQLITE_OK is returned if successful, or SQLITE_NOMEM if an error occurs.
-*/
-static int fts3EvalPhraseMergeToken(
-  Fts3Table *pTab,                /* FTS Table pointer */
-  Fts3Phrase *p,                  /* Phrase to merge pList/nList into */
-  int iToken,                     /* Token pList/nList corresponds to */
-  char *pList,                    /* Pointer to doclist */
-  int nList                       /* Number of bytes in pList */
-){
-  int rc = SQLITE_OK;
-  assert( iToken!=p->iDoclistToken );
-
-  if( pList==0 ){
-    tdsqlite3_free(p->doclist.aAll);
-    p->doclist.aAll = 0;
-    p->doclist.nAll = 0;
-  }
-
-  else if( p->iDoclistToken<0 ){
-    p->doclist.aAll = pList;
-    p->doclist.nAll = nList;
-  }
-
-  else if( p->doclist.aAll==0 ){
-    tdsqlite3_free(pList);
-  }
-
-  else {
-    char *pLeft;
-    char *pRight;
-    int nLeft;
-    int nRight;
-    int nDiff;
-
-    if( p->iDoclistToken<iToken ){
-      pLeft = p->doclist.aAll;
-      nLeft = p->doclist.nAll;
-      pRight = pList;
-      nRight = nList;
-      nDiff = iToken - p->iDoclistToken;
-    }else{
-      pRight = p->doclist.aAll;
-      nRight = p->doclist.nAll;
-      pLeft = pList;
-      nLeft = nList;
-      nDiff = p->iDoclistToken - iToken;
-    }
-
-    rc = fts3DoclistPhraseMerge(
-        pTab->bDescIdx, nDiff, pLeft, nLeft, &pRight, &nRight
-    );
-    tdsqlite3_free(pLeft);
-    p->doclist.aAll = pRight;
-    p->doclist.nAll = nRight;
-  }
-
-  if( iToken>p->iDoclistToken ) p->iDoclistToken = iToken;
-  return rc;
-}
-
-/*
-** Load the doclist for phrase p into p->doclist.aAll/nAll. The loaded doclist
-** does not take deferred tokens into account.
-**
-** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
-*/
-static int fts3EvalPhraseLoad(
-  Fts3Cursor *pCsr,               /* FTS Cursor handle */
-  Fts3Phrase *p                   /* Phrase object */
-){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  int iToken;
-  int rc = SQLITE_OK;
-
-  for(iToken=0; rc==SQLITE_OK && iToken<p->nToken; iToken++){
-    Fts3PhraseToken *pToken = &p->aToken[iToken];
-    assert( pToken->pDeferred==0 || pToken->pSegcsr==0 );
-
-    if( pToken->pSegcsr ){
-      int nThis = 0;
-      char *pThis = 0;
-      rc = fts3TermSelect(pTab, pToken, p->iColumn, &nThis, &pThis);
-      if( rc==SQLITE_OK ){
-        rc = fts3EvalPhraseMergeToken(pTab, p, iToken, pThis, nThis);
-      }
-    }
-    assert( pToken->pSegcsr==0 );
-  }
-
-  return rc;
-}
-
-#ifndef SQLITE_DISABLE_FTS4_DEFERRED
-/*
-** This function is called on each phrase after the position lists for
-** any deferred tokens have been loaded into memory. It updates the phrases
-** current position list to include only those positions that are really
-** instances of the phrase (after considering deferred tokens). If this
-** means that the phrase does not appear in the current row, doclist.pList
-** and doclist.nList are both zeroed.
-**
-** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
-*/
-static int fts3EvalDeferredPhrase(Fts3Cursor *pCsr, Fts3Phrase *pPhrase){
-  int iToken;                     /* Used to iterate through phrase tokens */
-  char *aPoslist = 0;             /* Position list for deferred tokens */
-  int nPoslist = 0;               /* Number of bytes in aPoslist */
-  int iPrev = -1;                 /* Token number of previous deferred token */
-
-  assert( pPhrase->doclist.bFreeList==0 );
-
-  for(iToken=0; iToken<pPhrase->nToken; iToken++){
-    Fts3PhraseToken *pToken = &pPhrase->aToken[iToken];
-    Fts3DeferredToken *pDeferred = pToken->pDeferred;
-
-    if( pDeferred ){
-      char *pList;
-      int nList;
-      int rc = tdsqlite3Fts3DeferredTokenList(pDeferred, &pList, &nList);
-      if( rc!=SQLITE_OK ) return rc;
-
-      if( pList==0 ){
-        tdsqlite3_free(aPoslist);
-        pPhrase->doclist.pList = 0;
-        pPhrase->doclist.nList = 0;
-        return SQLITE_OK;
-
-      }else if( aPoslist==0 ){
-        aPoslist = pList;
-        nPoslist = nList;
-
-      }else{
-        char *aOut = pList;
-        char *p1 = aPoslist;
-        char *p2 = aOut;
-
-        assert( iPrev>=0 );
-        fts3PoslistPhraseMerge(&aOut, iToken-iPrev, 0, 1, &p1, &p2);
-        tdsqlite3_free(aPoslist);
-        aPoslist = pList;
-        nPoslist = (int)(aOut - aPoslist);
-        if( nPoslist==0 ){
-          tdsqlite3_free(aPoslist);
-          pPhrase->doclist.pList = 0;
-          pPhrase->doclist.nList = 0;
-          return SQLITE_OK;
-        }
-      }
-      iPrev = iToken;
-    }
-  }
-
-  if( iPrev>=0 ){
-    int nMaxUndeferred = pPhrase->iDoclistToken;
-    if( nMaxUndeferred<0 ){
-      pPhrase->doclist.pList = aPoslist;
-      pPhrase->doclist.nList = nPoslist;
-      pPhrase->doclist.iDocid = pCsr->iPrevId;
-      pPhrase->doclist.bFreeList = 1;
-    }else{
-      int nDistance;
-      char *p1;
-      char *p2;
-      char *aOut;
-
-      if( nMaxUndeferred>iPrev ){
-        p1 = aPoslist;
-        p2 = pPhrase->doclist.pList;
-        nDistance = nMaxUndeferred - iPrev;
-      }else{
-        p1 = pPhrase->doclist.pList;
-        p2 = aPoslist;
-        nDistance = iPrev - nMaxUndeferred;
-      }
-
-      aOut = (char *)tdsqlite3_malloc(nPoslist+8);
-      if( !aOut ){
-        tdsqlite3_free(aPoslist);
-        return SQLITE_NOMEM;
-      }
-      
-      pPhrase->doclist.pList = aOut;
-      if( fts3PoslistPhraseMerge(&aOut, nDistance, 0, 1, &p1, &p2) ){
-        pPhrase->doclist.bFreeList = 1;
-        pPhrase->doclist.nList = (int)(aOut - pPhrase->doclist.pList);
-      }else{
-        tdsqlite3_free(aOut);
-        pPhrase->doclist.pList = 0;
-        pPhrase->doclist.nList = 0;
-      }
-      tdsqlite3_free(aPoslist);
-    }
-  }
-
-  return SQLITE_OK;
-}
-#endif /* SQLITE_DISABLE_FTS4_DEFERRED */
-
-/*
-** Maximum number of tokens a phrase may have to be considered for the
-** incremental doclists strategy.
-*/
-#define MAX_INCR_PHRASE_TOKENS 4
-
-/*
-** This function is called for each Fts3Phrase in a full-text query 
-** expression to initialize the mechanism for returning rows. Once this
-** function has been called successfully on an Fts3Phrase, it may be
-** used with fts3EvalPhraseNext() to iterate through the matching docids.
-**
-** If parameter bOptOk is true, then the phrase may (or may not) use the
-** incremental loading strategy. Otherwise, the entire doclist is loaded into
-** memory within this call.
-**
-** SQLITE_OK is returned if no error occurs, otherwise an SQLite error code.
-*/
-static int fts3EvalPhraseStart(Fts3Cursor *pCsr, int bOptOk, Fts3Phrase *p){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  int rc = SQLITE_OK;             /* Error code */
-  int i;
-
-  /* Determine if doclists may be loaded from disk incrementally. This is
-  ** possible if the bOptOk argument is true, the FTS doclists will be
-  ** scanned in forward order, and the phrase consists of 
-  ** MAX_INCR_PHRASE_TOKENS or fewer tokens, none of which are are "^first"
-  ** tokens or prefix tokens that cannot use a prefix-index.  */
-  int bHaveIncr = 0;
-  int bIncrOk = (bOptOk 
-   && pCsr->bDesc==pTab->bDescIdx 
-   && p->nToken<=MAX_INCR_PHRASE_TOKENS && p->nToken>0
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-   && pTab->bNoIncrDoclist==0
-#endif
-  );
-  for(i=0; bIncrOk==1 && i<p->nToken; i++){
-    Fts3PhraseToken *pToken = &p->aToken[i];
-    if( pToken->bFirst || (pToken->pSegcsr!=0 && !pToken->pSegcsr->bLookup) ){
-      bIncrOk = 0;
-    }
-    if( pToken->pSegcsr ) bHaveIncr = 1;
-  }
-
-  if( bIncrOk && bHaveIncr ){
-    /* Use the incremental approach. */
-    int iCol = (p->iColumn >= pTab->nColumn ? -1 : p->iColumn);
-    for(i=0; rc==SQLITE_OK && i<p->nToken; i++){
-      Fts3PhraseToken *pToken = &p->aToken[i];
-      Fts3MultiSegReader *pSegcsr = pToken->pSegcsr;
-      if( pSegcsr ){
-        rc = tdsqlite3Fts3MsrIncrStart(pTab, pSegcsr, iCol, pToken->z, pToken->n);
-      }
-    }
-    p->bIncr = 1;
-  }else{
-    /* Load the full doclist for the phrase into memory. */
-    rc = fts3EvalPhraseLoad(pCsr, p);
-    p->bIncr = 0;
-  }
-
-  assert( rc!=SQLITE_OK || p->nToken<1 || p->aToken[0].pSegcsr==0 || p->bIncr );
-  return rc;
-}
-
-/*
-** This function is used to iterate backwards (from the end to start) 
-** through doclists. It is used by this module to iterate through phrase
-** doclists in reverse and by the fts3_write.c module to iterate through
-** pending-terms lists when writing to databases with "order=desc".
-**
-** The doclist may be sorted in ascending (parameter bDescIdx==0) or 
-** descending (parameter bDescIdx==1) order of docid. Regardless, this
-** function iterates from the end of the doclist to the beginning.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3DoclistPrev(
-  int bDescIdx,                   /* True if the doclist is desc */
-  char *aDoclist,                 /* Pointer to entire doclist */
-  int nDoclist,                   /* Length of aDoclist in bytes */
-  char **ppIter,                  /* IN/OUT: Iterator pointer */
-  tdsqlite3_int64 *piDocid,         /* IN/OUT: Docid pointer */
-  int *pnList,                    /* OUT: List length pointer */
-  u8 *pbEof                       /* OUT: End-of-file flag */
-){
-  char *p = *ppIter;
-
-  assert( nDoclist>0 );
-  assert( *pbEof==0 );
-  assert( p || *piDocid==0 );
-  assert( !p || (p>aDoclist && p<&aDoclist[nDoclist]) );
-
-  if( p==0 ){
-    tdsqlite3_int64 iDocid = 0;
-    char *pNext = 0;
-    char *pDocid = aDoclist;
-    char *pEnd = &aDoclist[nDoclist];
-    int iMul = 1;
-
-    while( pDocid<pEnd ){
-      tdsqlite3_int64 iDelta;
-      pDocid += tdsqlite3Fts3GetVarint(pDocid, &iDelta);
-      iDocid += (iMul * iDelta);
-      pNext = pDocid;
-      fts3PoslistCopy(0, &pDocid);
-      while( pDocid<pEnd && *pDocid==0 ) pDocid++;
-      iMul = (bDescIdx ? -1 : 1);
-    }
-
-    *pnList = (int)(pEnd - pNext);
-    *ppIter = pNext;
-    *piDocid = iDocid;
-  }else{
-    int iMul = (bDescIdx ? -1 : 1);
-    tdsqlite3_int64 iDelta;
-    fts3GetReverseVarint(&p, aDoclist, &iDelta);
-    *piDocid -= (iMul * iDelta);
-
-    if( p==aDoclist ){
-      *pbEof = 1;
-    }else{
-      char *pSave = p;
-      fts3ReversePoslist(aDoclist, &p);
-      *pnList = (int)(pSave - p);
-    }
-    *ppIter = p;
-  }
-}
-
-/*
-** Iterate forwards through a doclist.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3DoclistNext(
-  int bDescIdx,                   /* True if the doclist is desc */
-  char *aDoclist,                 /* Pointer to entire doclist */
-  int nDoclist,                   /* Length of aDoclist in bytes */
-  char **ppIter,                  /* IN/OUT: Iterator pointer */
-  tdsqlite3_int64 *piDocid,         /* IN/OUT: Docid pointer */
-  u8 *pbEof                       /* OUT: End-of-file flag */
-){
-  char *p = *ppIter;
-
-  assert( nDoclist>0 );
-  assert( *pbEof==0 );
-  assert( p || *piDocid==0 );
-  assert( !p || (p>=aDoclist && p<=&aDoclist[nDoclist]) );
-
-  if( p==0 ){
-    p = aDoclist;
-    p += tdsqlite3Fts3GetVarint(p, piDocid);
-  }else{
-    fts3PoslistCopy(0, &p);
-    while( p<&aDoclist[nDoclist] && *p==0 ) p++; 
-    if( p>=&aDoclist[nDoclist] ){
-      *pbEof = 1;
-    }else{
-      tdsqlite3_int64 iVar;
-      p += tdsqlite3Fts3GetVarint(p, &iVar);
-      *piDocid += ((bDescIdx ? -1 : 1) * iVar);
-    }
-  }
-
-  *ppIter = p;
-}
-
-/*
-** Advance the iterator pDL to the next entry in pDL->aAll/nAll. Set *pbEof
-** to true if EOF is reached.
-*/
-static void fts3EvalDlPhraseNext(
-  Fts3Table *pTab,
-  Fts3Doclist *pDL,
-  u8 *pbEof
-){
-  char *pIter;                            /* Used to iterate through aAll */
-  char *pEnd;                             /* 1 byte past end of aAll */
- 
-  if( pDL->pNextDocid ){
-    pIter = pDL->pNextDocid;
-    assert( pDL->aAll!=0 || pIter==0 );
-  }else{
-    pIter = pDL->aAll;
-  }
-
-  if( pIter==0 || pIter>=(pEnd = pDL->aAll + pDL->nAll) ){
-    /* We have already reached the end of this doclist. EOF. */
-    *pbEof = 1;
-  }else{
-    tdsqlite3_int64 iDelta;
-    pIter += tdsqlite3Fts3GetVarint(pIter, &iDelta);
-    if( pTab->bDescIdx==0 || pDL->pNextDocid==0 ){
-      pDL->iDocid += iDelta;
-    }else{
-      pDL->iDocid -= iDelta;
-    }
-    pDL->pList = pIter;
-    fts3PoslistCopy(0, &pIter);
-    pDL->nList = (int)(pIter - pDL->pList);
-
-    /* pIter now points just past the 0x00 that terminates the position-
-    ** list for document pDL->iDocid. However, if this position-list was
-    ** edited in place by fts3EvalNearTrim(), then pIter may not actually
-    ** point to the start of the next docid value. The following line deals
-    ** with this case by advancing pIter past the zero-padding added by
-    ** fts3EvalNearTrim().  */
-    while( pIter<pEnd && *pIter==0 ) pIter++;
-
-    pDL->pNextDocid = pIter;
-    assert( pIter>=&pDL->aAll[pDL->nAll] || *pIter );
-    *pbEof = 0;
-  }
-}
-
-/*
-** Helper type used by fts3EvalIncrPhraseNext() and incrPhraseTokenNext().
-*/
-typedef struct TokenDoclist TokenDoclist;
-struct TokenDoclist {
-  int bIgnore;
-  tdsqlite3_int64 iDocid;
-  char *pList;
-  int nList;
-};
-
-/*
-** Token pToken is an incrementally loaded token that is part of a 
-** multi-token phrase. Advance it to the next matching document in the
-** database and populate output variable *p with the details of the new
-** entry. Or, if the iterator has reached EOF, set *pbEof to true.
-**
-** If an error occurs, return an SQLite error code. Otherwise, return 
-** SQLITE_OK.
-*/
-static int incrPhraseTokenNext(
-  Fts3Table *pTab,                /* Virtual table handle */
-  Fts3Phrase *pPhrase,            /* Phrase to advance token of */
-  int iToken,                     /* Specific token to advance */
-  TokenDoclist *p,                /* OUT: Docid and doclist for new entry */
-  u8 *pbEof                       /* OUT: True if iterator is at EOF */
-){
-  int rc = SQLITE_OK;
-
-  if( pPhrase->iDoclistToken==iToken ){
-    assert( p->bIgnore==0 );
-    assert( pPhrase->aToken[iToken].pSegcsr==0 );
-    fts3EvalDlPhraseNext(pTab, &pPhrase->doclist, pbEof);
-    p->pList = pPhrase->doclist.pList;
-    p->nList = pPhrase->doclist.nList;
-    p->iDocid = pPhrase->doclist.iDocid;
-  }else{
-    Fts3PhraseToken *pToken = &pPhrase->aToken[iToken];
-    assert( pToken->pDeferred==0 );
-    assert( pToken->pSegcsr || pPhrase->iDoclistToken>=0 );
-    if( pToken->pSegcsr ){
-      assert( p->bIgnore==0 );
-      rc = tdsqlite3Fts3MsrIncrNext(
-          pTab, pToken->pSegcsr, &p->iDocid, &p->pList, &p->nList
-      );
-      if( p->pList==0 ) *pbEof = 1;
-    }else{
-      p->bIgnore = 1;
-    }
-  }
-
-  return rc;
-}
-
-
-/*
-** The phrase iterator passed as the second argument:
-**
-**   * features at least one token that uses an incremental doclist, and 
-**
-**   * does not contain any deferred tokens.
-**
-** Advance it to the next matching documnent in the database and populate
-** the Fts3Doclist.pList and nList fields. 
-**
-** If there is no "next" entry and no error occurs, then *pbEof is set to
-** 1 before returning. Otherwise, if no error occurs and the iterator is
-** successfully advanced, *pbEof is set to 0.
-**
-** If an error occurs, return an SQLite error code. Otherwise, return 
-** SQLITE_OK.
-*/
-static int fts3EvalIncrPhraseNext(
-  Fts3Cursor *pCsr,               /* FTS Cursor handle */
-  Fts3Phrase *p,                  /* Phrase object to advance to next docid */
-  u8 *pbEof                       /* OUT: Set to 1 if EOF */
-){
-  int rc = SQLITE_OK;
-  Fts3Doclist *pDL = &p->doclist;
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  u8 bEof = 0;
-
-  /* This is only called if it is guaranteed that the phrase has at least
-  ** one incremental token. In which case the bIncr flag is set. */
-  assert( p->bIncr==1 );
-
-  if( p->nToken==1 ){
-    rc = tdsqlite3Fts3MsrIncrNext(pTab, p->aToken[0].pSegcsr, 
-        &pDL->iDocid, &pDL->pList, &pDL->nList
-    );
-    if( pDL->pList==0 ) bEof = 1;
-  }else{
-    int bDescDoclist = pCsr->bDesc;
-    struct TokenDoclist a[MAX_INCR_PHRASE_TOKENS];
-
-    memset(a, 0, sizeof(a));
-    assert( p->nToken<=MAX_INCR_PHRASE_TOKENS );
-    assert( p->iDoclistToken<MAX_INCR_PHRASE_TOKENS );
-
-    while( bEof==0 ){
-      int bMaxSet = 0;
-      tdsqlite3_int64 iMax = 0;     /* Largest docid for all iterators */
-      int i;                      /* Used to iterate through tokens */
-
-      /* Advance the iterator for each token in the phrase once. */
-      for(i=0; rc==SQLITE_OK && i<p->nToken && bEof==0; i++){
-        rc = incrPhraseTokenNext(pTab, p, i, &a[i], &bEof);
-        if( a[i].bIgnore==0 && (bMaxSet==0 || DOCID_CMP(iMax, a[i].iDocid)<0) ){
-          iMax = a[i].iDocid;
-          bMaxSet = 1;
-        }
-      }
-      assert( rc!=SQLITE_OK || (p->nToken>=1 && a[p->nToken-1].bIgnore==0) );
-      assert( rc!=SQLITE_OK || bMaxSet );
-
-      /* Keep advancing iterators until they all point to the same document */
-      for(i=0; i<p->nToken; i++){
-        while( rc==SQLITE_OK && bEof==0 
-            && a[i].bIgnore==0 && DOCID_CMP(a[i].iDocid, iMax)<0 
-        ){
-          rc = incrPhraseTokenNext(pTab, p, i, &a[i], &bEof);
-          if( DOCID_CMP(a[i].iDocid, iMax)>0 ){
-            iMax = a[i].iDocid;
-            i = 0;
-          }
-        }
-      }
-
-      /* Check if the current entries really are a phrase match */
-      if( bEof==0 ){
-        int nList = 0;
-        int nByte = a[p->nToken-1].nList;
-        char *aDoclist = tdsqlite3_malloc(nByte+FTS3_BUFFER_PADDING);
-        if( !aDoclist ) return SQLITE_NOMEM;
-        memcpy(aDoclist, a[p->nToken-1].pList, nByte+1);
-        memset(&aDoclist[nByte], 0, FTS3_BUFFER_PADDING);
-
-        for(i=0; i<(p->nToken-1); i++){
-          if( a[i].bIgnore==0 ){
-            char *pL = a[i].pList;
-            char *pR = aDoclist;
-            char *pOut = aDoclist;
-            int nDist = p->nToken-1-i;
-            int res = fts3PoslistPhraseMerge(&pOut, nDist, 0, 1, &pL, &pR);
-            if( res==0 ) break;
-            nList = (int)(pOut - aDoclist);
-          }
-        }
-        if( i==(p->nToken-1) ){
-          pDL->iDocid = iMax;
-          pDL->pList = aDoclist;
-          pDL->nList = nList;
-          pDL->bFreeList = 1;
-          break;
-        }
-        tdsqlite3_free(aDoclist);
-      }
-    }
-  }
-
-  *pbEof = bEof;
-  return rc;
-}
-
-/*
-** Attempt to move the phrase iterator to point to the next matching docid. 
-** If an error occurs, return an SQLite error code. Otherwise, return 
-** SQLITE_OK.
-**
-** If there is no "next" entry and no error occurs, then *pbEof is set to
-** 1 before returning. Otherwise, if no error occurs and the iterator is
-** successfully advanced, *pbEof is set to 0.
-*/
-static int fts3EvalPhraseNext(
-  Fts3Cursor *pCsr,               /* FTS Cursor handle */
-  Fts3Phrase *p,                  /* Phrase object to advance to next docid */
-  u8 *pbEof                       /* OUT: Set to 1 if EOF */
-){
-  int rc = SQLITE_OK;
-  Fts3Doclist *pDL = &p->doclist;
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-
-  if( p->bIncr ){
-    rc = fts3EvalIncrPhraseNext(pCsr, p, pbEof);
-  }else if( pCsr->bDesc!=pTab->bDescIdx && pDL->nAll ){
-    tdsqlite3Fts3DoclistPrev(pTab->bDescIdx, pDL->aAll, pDL->nAll, 
-        &pDL->pNextDocid, &pDL->iDocid, &pDL->nList, pbEof
-    );
-    pDL->pList = pDL->pNextDocid;
-  }else{
-    fts3EvalDlPhraseNext(pTab, pDL, pbEof);
-  }
-
-  return rc;
-}
-
-/*
-**
-** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
-** Otherwise, fts3EvalPhraseStart() is called on all phrases within the
-** expression. Also the Fts3Expr.bDeferred variable is set to true for any
-** expressions for which all descendent tokens are deferred.
-**
-** If parameter bOptOk is zero, then it is guaranteed that the
-** Fts3Phrase.doclist.aAll/nAll variables contain the entire doclist for
-** each phrase in the expression (subject to deferred token processing).
-** Or, if bOptOk is non-zero, then one or more tokens within the expression
-** may be loaded incrementally, meaning doclist.aAll/nAll is not available.
-**
-** If an error occurs within this function, *pRc is set to an SQLite error
-** code before returning.
-*/
-static void fts3EvalStartReaders(
-  Fts3Cursor *pCsr,               /* FTS Cursor handle */
-  Fts3Expr *pExpr,                /* Expression to initialize phrases in */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  if( pExpr && SQLITE_OK==*pRc ){
-    if( pExpr->eType==FTSQUERY_PHRASE ){
-      int nToken = pExpr->pPhrase->nToken;
-      if( nToken ){
-        int i;
-        for(i=0; i<nToken; i++){
-          if( pExpr->pPhrase->aToken[i].pDeferred==0 ) break;
-        }
-        pExpr->bDeferred = (i==nToken);
-      }
-      *pRc = fts3EvalPhraseStart(pCsr, 1, pExpr->pPhrase);
-    }else{
-      fts3EvalStartReaders(pCsr, pExpr->pLeft, pRc);
-      fts3EvalStartReaders(pCsr, pExpr->pRight, pRc);
-      pExpr->bDeferred = (pExpr->pLeft->bDeferred && pExpr->pRight->bDeferred);
-    }
-  }
-}
-
-/*
-** An array of the following structures is assembled as part of the process
-** of selecting tokens to defer before the query starts executing (as part
-** of the xFilter() method). There is one element in the array for each
-** token in the FTS expression.
-**
-** Tokens are divided into AND/NEAR clusters. All tokens in a cluster belong
-** to phrases that are connected only by AND and NEAR operators (not OR or
-** NOT). When determining tokens to defer, each AND/NEAR cluster is considered
-** separately. The root of a tokens AND/NEAR cluster is stored in 
-** Fts3TokenAndCost.pRoot.
-*/
-typedef struct Fts3TokenAndCost Fts3TokenAndCost;
-struct Fts3TokenAndCost {
-  Fts3Phrase *pPhrase;            /* The phrase the token belongs to */
-  int iToken;                     /* Position of token in phrase */
-  Fts3PhraseToken *pToken;        /* The token itself */
-  Fts3Expr *pRoot;                /* Root of NEAR/AND cluster */
-  int nOvfl;                      /* Number of overflow pages to load doclist */
-  int iCol;                       /* The column the token must match */
-};
-
-/*
-** This function is used to populate an allocated Fts3TokenAndCost array.
-**
-** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
-** Otherwise, if an error occurs during execution, *pRc is set to an
-** SQLite error code.
-*/
-static void fts3EvalTokenCosts(
-  Fts3Cursor *pCsr,               /* FTS Cursor handle */
-  Fts3Expr *pRoot,                /* Root of current AND/NEAR cluster */
-  Fts3Expr *pExpr,                /* Expression to consider */
-  Fts3TokenAndCost **ppTC,        /* Write new entries to *(*ppTC)++ */
-  Fts3Expr ***ppOr,               /* Write new OR root to *(*ppOr)++ */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  if( *pRc==SQLITE_OK ){
-    if( pExpr->eType==FTSQUERY_PHRASE ){
-      Fts3Phrase *pPhrase = pExpr->pPhrase;
-      int i;
-      for(i=0; *pRc==SQLITE_OK && i<pPhrase->nToken; i++){
-        Fts3TokenAndCost *pTC = (*ppTC)++;
-        pTC->pPhrase = pPhrase;
-        pTC->iToken = i;
-        pTC->pRoot = pRoot;
-        pTC->pToken = &pPhrase->aToken[i];
-        pTC->iCol = pPhrase->iColumn;
-        *pRc = tdsqlite3Fts3MsrOvfl(pCsr, pTC->pToken->pSegcsr, &pTC->nOvfl);
-      }
-    }else if( pExpr->eType!=FTSQUERY_NOT ){
-      assert( pExpr->eType==FTSQUERY_OR
-           || pExpr->eType==FTSQUERY_AND
-           || pExpr->eType==FTSQUERY_NEAR
-      );
-      assert( pExpr->pLeft && pExpr->pRight );
-      if( pExpr->eType==FTSQUERY_OR ){
-        pRoot = pExpr->pLeft;
-        **ppOr = pRoot;
-        (*ppOr)++;
-      }
-      fts3EvalTokenCosts(pCsr, pRoot, pExpr->pLeft, ppTC, ppOr, pRc);
-      if( pExpr->eType==FTSQUERY_OR ){
-        pRoot = pExpr->pRight;
-        **ppOr = pRoot;
-        (*ppOr)++;
-      }
-      fts3EvalTokenCosts(pCsr, pRoot, pExpr->pRight, ppTC, ppOr, pRc);
-    }
-  }
-}
-
-/*
-** Determine the average document (row) size in pages. If successful,
-** write this value to *pnPage and return SQLITE_OK. Otherwise, return
-** an SQLite error code.
-**
-** The average document size in pages is calculated by first calculating 
-** determining the average size in bytes, B. If B is less than the amount
-** of data that will fit on a single leaf page of an intkey table in
-** this database, then the average docsize is 1. Otherwise, it is 1 plus
-** the number of overflow pages consumed by a record B bytes in size.
-*/
-static int fts3EvalAverageDocsize(Fts3Cursor *pCsr, int *pnPage){
-  int rc = SQLITE_OK;
-  if( pCsr->nRowAvg==0 ){
-    /* The average document size, which is required to calculate the cost
-    ** of each doclist, has not yet been determined. Read the required 
-    ** data from the %_stat table to calculate it.
-    **
-    ** Entry 0 of the %_stat table is a blob containing (nCol+1) FTS3 
-    ** varints, where nCol is the number of columns in the FTS3 table.
-    ** The first varint is the number of documents currently stored in
-    ** the table. The following nCol varints contain the total amount of
-    ** data stored in all rows of each column of the table, from left
-    ** to right.
-    */
-    Fts3Table *p = (Fts3Table*)pCsr->base.pVtab;
-    tdsqlite3_stmt *pStmt;
-    tdsqlite3_int64 nDoc = 0;
-    tdsqlite3_int64 nByte = 0;
-    const char *pEnd;
-    const char *a;
-
-    rc = tdsqlite3Fts3SelectDoctotal(p, &pStmt);
-    if( rc!=SQLITE_OK ) return rc;
-    a = tdsqlite3_column_blob(pStmt, 0);
-    testcase( a==0 );  /* If %_stat.value set to X'' */
-    if( a ){
-      pEnd = &a[tdsqlite3_column_bytes(pStmt, 0)];
-      a += tdsqlite3Fts3GetVarintBounded(a, pEnd, &nDoc);
-      while( a<pEnd ){
-        a += tdsqlite3Fts3GetVarintBounded(a, pEnd, &nByte);
-      }
-    }
-    if( nDoc==0 || nByte==0 ){
-      tdsqlite3_reset(pStmt);
-      return FTS_CORRUPT_VTAB;
-    }
-
-    pCsr->nDoc = nDoc;
-    pCsr->nRowAvg = (int)(((nByte / nDoc) + p->nPgsz) / p->nPgsz);
-    assert( pCsr->nRowAvg>0 ); 
-    rc = tdsqlite3_reset(pStmt);
-  }
-
-  *pnPage = pCsr->nRowAvg;
-  return rc;
-}
-
-/*
-** This function is called to select the tokens (if any) that will be 
-** deferred. The array aTC[] has already been populated when this is
-** called.
-**
-** This function is called once for each AND/NEAR cluster in the 
-** expression. Each invocation determines which tokens to defer within
-** the cluster with root node pRoot. See comments above the definition
-** of struct Fts3TokenAndCost for more details.
-**
-** If no error occurs, SQLITE_OK is returned and tdsqlite3Fts3DeferToken()
-** called on each token to defer. Otherwise, an SQLite error code is
-** returned.
-*/
-static int fts3EvalSelectDeferred(
-  Fts3Cursor *pCsr,               /* FTS Cursor handle */
-  Fts3Expr *pRoot,                /* Consider tokens with this root node */
-  Fts3TokenAndCost *aTC,          /* Array of expression tokens and costs */
-  int nTC                         /* Number of entries in aTC[] */
-){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  int nDocSize = 0;               /* Number of pages per doc loaded */
-  int rc = SQLITE_OK;             /* Return code */
-  int ii;                         /* Iterator variable for various purposes */
-  int nOvfl = 0;                  /* Total overflow pages used by doclists */
-  int nToken = 0;                 /* Total number of tokens in cluster */
-
-  int nMinEst = 0;                /* The minimum count for any phrase so far. */
-  int nLoad4 = 1;                 /* (Phrases that will be loaded)^4. */
-
-  /* Tokens are never deferred for FTS tables created using the content=xxx
-  ** option. The reason being that it is not guaranteed that the content
-  ** table actually contains the same data as the index. To prevent this from
-  ** causing any problems, the deferred token optimization is completely
-  ** disabled for content=xxx tables. */
-  if( pTab->zContentTbl ){
-    return SQLITE_OK;
-  }
-
-  /* Count the tokens in this AND/NEAR cluster. If none of the doclists
-  ** associated with the tokens spill onto overflow pages, or if there is
-  ** only 1 token, exit early. No tokens to defer in this case. */
-  for(ii=0; ii<nTC; ii++){
-    if( aTC[ii].pRoot==pRoot ){
-      nOvfl += aTC[ii].nOvfl;
-      nToken++;
-    }
-  }
-  if( nOvfl==0 || nToken<2 ) return SQLITE_OK;
-
-  /* Obtain the average docsize (in pages). */
-  rc = fts3EvalAverageDocsize(pCsr, &nDocSize);
-  assert( rc!=SQLITE_OK || nDocSize>0 );
-
-
-  /* Iterate through all tokens in this AND/NEAR cluster, in ascending order 
-  ** of the number of overflow pages that will be loaded by the pager layer 
-  ** to retrieve the entire doclist for the token from the full-text index.
-  ** Load the doclists for tokens that are either:
-  **
-  **   a. The cheapest token in the entire query (i.e. the one visited by the
-  **      first iteration of this loop), or
-  **
-  **   b. Part of a multi-token phrase.
-  **
-  ** After each token doclist is loaded, merge it with the others from the
-  ** same phrase and count the number of documents that the merged doclist
-  ** contains. Set variable "nMinEst" to the smallest number of documents in 
-  ** any phrase doclist for which 1 or more token doclists have been loaded.
-  ** Let nOther be the number of other phrases for which it is certain that
-  ** one or more tokens will not be deferred.
-  **
-  ** Then, for each token, defer it if loading the doclist would result in
-  ** loading N or more overflow pages into memory, where N is computed as:
-  **
-  **    (nMinEst + 4^nOther - 1) / (4^nOther)
-  */
-  for(ii=0; ii<nToken && rc==SQLITE_OK; ii++){
-    int iTC;                      /* Used to iterate through aTC[] array. */
-    Fts3TokenAndCost *pTC = 0;    /* Set to cheapest remaining token. */
-
-    /* Set pTC to point to the cheapest remaining token. */
-    for(iTC=0; iTC<nTC; iTC++){
-      if( aTC[iTC].pToken && aTC[iTC].pRoot==pRoot 
-       && (!pTC || aTC[iTC].nOvfl<pTC->nOvfl) 
-      ){
-        pTC = &aTC[iTC];
-      }
-    }
-    assert( pTC );
-
-    if( ii && pTC->nOvfl>=((nMinEst+(nLoad4/4)-1)/(nLoad4/4))*nDocSize ){
-      /* The number of overflow pages to load for this (and therefore all
-      ** subsequent) tokens is greater than the estimated number of pages 
-      ** that will be loaded if all subsequent tokens are deferred.
-      */
-      Fts3PhraseToken *pToken = pTC->pToken;
-      rc = tdsqlite3Fts3DeferToken(pCsr, pToken, pTC->iCol);
-      fts3SegReaderCursorFree(pToken->pSegcsr);
-      pToken->pSegcsr = 0;
-    }else{
-      /* Set nLoad4 to the value of (4^nOther) for the next iteration of the
-      ** for-loop. Except, limit the value to 2^24 to prevent it from 
-      ** overflowing the 32-bit integer it is stored in. */
-      if( ii<12 ) nLoad4 = nLoad4*4;
-
-      if( ii==0 || (pTC->pPhrase->nToken>1 && ii!=nToken-1) ){
-        /* Either this is the cheapest token in the entire query, or it is
-        ** part of a multi-token phrase. Either way, the entire doclist will
-        ** (eventually) be loaded into memory. It may as well be now. */
-        Fts3PhraseToken *pToken = pTC->pToken;
-        int nList = 0;
-        char *pList = 0;
-        rc = fts3TermSelect(pTab, pToken, pTC->iCol, &nList, &pList);
-        assert( rc==SQLITE_OK || pList==0 );
-        if( rc==SQLITE_OK ){
-          rc = fts3EvalPhraseMergeToken(
-              pTab, pTC->pPhrase, pTC->iToken,pList,nList
-          );
-        }
-        if( rc==SQLITE_OK ){
-          int nCount;
-          nCount = fts3DoclistCountDocids(
-              pTC->pPhrase->doclist.aAll, pTC->pPhrase->doclist.nAll
-          );
-          if( ii==0 || nCount<nMinEst ) nMinEst = nCount;
-        }
-      }
-    }
-    pTC->pToken = 0;
-  }
-
-  return rc;
-}
-
-/*
-** This function is called from within the xFilter method. It initializes
-** the full-text query currently stored in pCsr->pExpr. To iterate through
-** the results of a query, the caller does:
-**
-**    fts3EvalStart(pCsr);
-**    while( 1 ){
-**      fts3EvalNext(pCsr);
-**      if( pCsr->bEof ) break;
-**      ... return row pCsr->iPrevId to the caller ...
-**    }
-*/
-static int fts3EvalStart(Fts3Cursor *pCsr){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  int rc = SQLITE_OK;
-  int nToken = 0;
-  int nOr = 0;
-
-  /* Allocate a MultiSegReader for each token in the expression. */
-  fts3EvalAllocateReaders(pCsr, pCsr->pExpr, &nToken, &nOr, &rc);
-
-  /* Determine which, if any, tokens in the expression should be deferred. */
-#ifndef SQLITE_DISABLE_FTS4_DEFERRED
-  if( rc==SQLITE_OK && nToken>1 && pTab->bFts4 ){
-    Fts3TokenAndCost *aTC;
-    Fts3Expr **apOr;
-    aTC = (Fts3TokenAndCost *)tdsqlite3_malloc64(
-        sizeof(Fts3TokenAndCost) * nToken
-      + sizeof(Fts3Expr *) * nOr * 2
-    );
-    apOr = (Fts3Expr **)&aTC[nToken];
-
-    if( !aTC ){
-      rc = SQLITE_NOMEM;
-    }else{
-      int ii;
-      Fts3TokenAndCost *pTC = aTC;
-      Fts3Expr **ppOr = apOr;
-
-      fts3EvalTokenCosts(pCsr, 0, pCsr->pExpr, &pTC, &ppOr, &rc);
-      nToken = (int)(pTC-aTC);
-      nOr = (int)(ppOr-apOr);
-
-      if( rc==SQLITE_OK ){
-        rc = fts3EvalSelectDeferred(pCsr, 0, aTC, nToken);
-        for(ii=0; rc==SQLITE_OK && ii<nOr; ii++){
-          rc = fts3EvalSelectDeferred(pCsr, apOr[ii], aTC, nToken);
-        }
-      }
-
-      tdsqlite3_free(aTC);
-    }
-  }
-#endif
-
-  fts3EvalStartReaders(pCsr, pCsr->pExpr, &rc);
-  return rc;
-}
-
-/*
-** Invalidate the current position list for phrase pPhrase.
-*/
-static void fts3EvalInvalidatePoslist(Fts3Phrase *pPhrase){
-  if( pPhrase->doclist.bFreeList ){
-    tdsqlite3_free(pPhrase->doclist.pList);
-  }
-  pPhrase->doclist.pList = 0;
-  pPhrase->doclist.nList = 0;
-  pPhrase->doclist.bFreeList = 0;
-}
-
-/*
-** This function is called to edit the position list associated with
-** the phrase object passed as the fifth argument according to a NEAR
-** condition. For example:
-**
-**     abc NEAR/5 "def ghi"
-**
-** Parameter nNear is passed the NEAR distance of the expression (5 in
-** the example above). When this function is called, *paPoslist points to
-** the position list, and *pnToken is the number of phrase tokens in, the
-** phrase on the other side of the NEAR operator to pPhrase. For example,
-** if pPhrase refers to the "def ghi" phrase, then *paPoslist points to
-** the position list associated with phrase "abc".
-**
-** All positions in the pPhrase position list that are not sufficiently
-** close to a position in the *paPoslist position list are removed. If this
-** leaves 0 positions, zero is returned. Otherwise, non-zero.
-**
-** Before returning, *paPoslist is set to point to the position lsit 
-** associated with pPhrase. And *pnToken is set to the number of tokens in
-** pPhrase.
-*/
-static int fts3EvalNearTrim(
-  int nNear,                      /* NEAR distance. As in "NEAR/nNear". */
-  char *aTmp,                     /* Temporary space to use */
-  char **paPoslist,               /* IN/OUT: Position list */
-  int *pnToken,                   /* IN/OUT: Tokens in phrase of *paPoslist */
-  Fts3Phrase *pPhrase             /* The phrase object to trim the doclist of */
-){
-  int nParam1 = nNear + pPhrase->nToken;
-  int nParam2 = nNear + *pnToken;
-  int nNew;
-  char *p2; 
-  char *pOut; 
-  int res;
-
-  assert( pPhrase->doclist.pList );
-
-  p2 = pOut = pPhrase->doclist.pList;
-  res = fts3PoslistNearMerge(
-    &pOut, aTmp, nParam1, nParam2, paPoslist, &p2
-  );
-  if( res ){
-    nNew = (int)(pOut - pPhrase->doclist.pList) - 1;
-    assert( pPhrase->doclist.pList[nNew]=='\0' );
-    assert( nNew<=pPhrase->doclist.nList && nNew>0 );
-    memset(&pPhrase->doclist.pList[nNew], 0, pPhrase->doclist.nList - nNew);
-    pPhrase->doclist.nList = nNew;
-    *paPoslist = pPhrase->doclist.pList;
-    *pnToken = pPhrase->nToken;
-  }
-
-  return res;
-}
-
-/*
-** This function is a no-op if *pRc is other than SQLITE_OK when it is called.
-** Otherwise, it advances the expression passed as the second argument to
-** point to the next matching row in the database. Expressions iterate through
-** matching rows in docid order. Ascending order if Fts3Cursor.bDesc is zero,
-** or descending if it is non-zero.
-**
-** If an error occurs, *pRc is set to an SQLite error code. Otherwise, if
-** successful, the following variables in pExpr are set:
-**
-**   Fts3Expr.bEof                (non-zero if EOF - there is no next row)
-**   Fts3Expr.iDocid              (valid if bEof==0. The docid of the next row)
-**
-** If the expression is of type FTSQUERY_PHRASE, and the expression is not
-** at EOF, then the following variables are populated with the position list
-** for the phrase for the visited row:
-**
-**   FTs3Expr.pPhrase->doclist.nList        (length of pList in bytes)
-**   FTs3Expr.pPhrase->doclist.pList        (pointer to position list)
-**
-** It says above that this function advances the expression to the next
-** matching row. This is usually true, but there are the following exceptions:
-**
-**   1. Deferred tokens are not taken into account. If a phrase consists
-**      entirely of deferred tokens, it is assumed to match every row in
-**      the db. In this case the position-list is not populated at all. 
-**
-**      Or, if a phrase contains one or more deferred tokens and one or
-**      more non-deferred tokens, then the expression is advanced to the 
-**      next possible match, considering only non-deferred tokens. In other
-**      words, if the phrase is "A B C", and "B" is deferred, the expression
-**      is advanced to the next row that contains an instance of "A * C", 
-**      where "*" may match any single token. The position list in this case
-**      is populated as for "A * C" before returning.
-**
-**   2. NEAR is treated as AND. If the expression is "x NEAR y", it is 
-**      advanced to point to the next row that matches "x AND y".
-** 
-** See tdsqlite3Fts3EvalTestDeferred() for details on testing if a row is
-** really a match, taking into account deferred tokens and NEAR operators.
-*/
-static void fts3EvalNextRow(
-  Fts3Cursor *pCsr,               /* FTS Cursor handle */
-  Fts3Expr *pExpr,                /* Expr. to advance to next matching row */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  if( *pRc==SQLITE_OK ){
-    int bDescDoclist = pCsr->bDesc;         /* Used by DOCID_CMP() macro */
-    assert( pExpr->bEof==0 );
-    pExpr->bStart = 1;
-
-    switch( pExpr->eType ){
-      case FTSQUERY_NEAR:
-      case FTSQUERY_AND: {
-        Fts3Expr *pLeft = pExpr->pLeft;
-        Fts3Expr *pRight = pExpr->pRight;
-        assert( !pLeft->bDeferred || !pRight->bDeferred );
-
-        if( pLeft->bDeferred ){
-          /* LHS is entirely deferred. So we assume it matches every row.
-          ** Advance the RHS iterator to find the next row visited. */
-          fts3EvalNextRow(pCsr, pRight, pRc);
-          pExpr->iDocid = pRight->iDocid;
-          pExpr->bEof = pRight->bEof;
-        }else if( pRight->bDeferred ){
-          /* RHS is entirely deferred. So we assume it matches every row.
-          ** Advance the LHS iterator to find the next row visited. */
-          fts3EvalNextRow(pCsr, pLeft, pRc);
-          pExpr->iDocid = pLeft->iDocid;
-          pExpr->bEof = pLeft->bEof;
-        }else{
-          /* Neither the RHS or LHS are deferred. */
-          fts3EvalNextRow(pCsr, pLeft, pRc);
-          fts3EvalNextRow(pCsr, pRight, pRc);
-          while( !pLeft->bEof && !pRight->bEof && *pRc==SQLITE_OK ){
-            tdsqlite3_int64 iDiff = DOCID_CMP(pLeft->iDocid, pRight->iDocid);
-            if( iDiff==0 ) break;
-            if( iDiff<0 ){
-              fts3EvalNextRow(pCsr, pLeft, pRc);
-            }else{
-              fts3EvalNextRow(pCsr, pRight, pRc);
-            }
-          }
-          pExpr->iDocid = pLeft->iDocid;
-          pExpr->bEof = (pLeft->bEof || pRight->bEof);
-          if( pExpr->eType==FTSQUERY_NEAR && pExpr->bEof ){
-            assert( pRight->eType==FTSQUERY_PHRASE );
-            if( pRight->pPhrase->doclist.aAll ){
-              Fts3Doclist *pDl = &pRight->pPhrase->doclist;
-              while( *pRc==SQLITE_OK && pRight->bEof==0 ){
-                memset(pDl->pList, 0, pDl->nList);
-                fts3EvalNextRow(pCsr, pRight, pRc);
-              }
-            }
-            if( pLeft->pPhrase && pLeft->pPhrase->doclist.aAll ){
-              Fts3Doclist *pDl = &pLeft->pPhrase->doclist;
-              while( *pRc==SQLITE_OK && pLeft->bEof==0 ){
-                memset(pDl->pList, 0, pDl->nList);
-                fts3EvalNextRow(pCsr, pLeft, pRc);
-              }
-            }
-          }
-        }
-        break;
-      }
-  
-      case FTSQUERY_OR: {
-        Fts3Expr *pLeft = pExpr->pLeft;
-        Fts3Expr *pRight = pExpr->pRight;
-        tdsqlite3_int64 iCmp = DOCID_CMP(pLeft->iDocid, pRight->iDocid);
-
-        assert( pLeft->bStart || pLeft->iDocid==pRight->iDocid );
-        assert( pRight->bStart || pLeft->iDocid==pRight->iDocid );
-
-        if( pRight->bEof || (pLeft->bEof==0 && iCmp<0) ){
-          fts3EvalNextRow(pCsr, pLeft, pRc);
-        }else if( pLeft->bEof || iCmp>0 ){
-          fts3EvalNextRow(pCsr, pRight, pRc);
-        }else{
-          fts3EvalNextRow(pCsr, pLeft, pRc);
-          fts3EvalNextRow(pCsr, pRight, pRc);
-        }
-
-        pExpr->bEof = (pLeft->bEof && pRight->bEof);
-        iCmp = DOCID_CMP(pLeft->iDocid, pRight->iDocid);
-        if( pRight->bEof || (pLeft->bEof==0 &&  iCmp<0) ){
-          pExpr->iDocid = pLeft->iDocid;
-        }else{
-          pExpr->iDocid = pRight->iDocid;
-        }
-
-        break;
-      }
-
-      case FTSQUERY_NOT: {
-        Fts3Expr *pLeft = pExpr->pLeft;
-        Fts3Expr *pRight = pExpr->pRight;
-
-        if( pRight->bStart==0 ){
-          fts3EvalNextRow(pCsr, pRight, pRc);
-          assert( *pRc!=SQLITE_OK || pRight->bStart );
-        }
-
-        fts3EvalNextRow(pCsr, pLeft, pRc);
-        if( pLeft->bEof==0 ){
-          while( !*pRc 
-              && !pRight->bEof 
-              && DOCID_CMP(pLeft->iDocid, pRight->iDocid)>0 
-          ){
-            fts3EvalNextRow(pCsr, pRight, pRc);
-          }
-        }
-        pExpr->iDocid = pLeft->iDocid;
-        pExpr->bEof = pLeft->bEof;
-        break;
-      }
-
-      default: {
-        Fts3Phrase *pPhrase = pExpr->pPhrase;
-        fts3EvalInvalidatePoslist(pPhrase);
-        *pRc = fts3EvalPhraseNext(pCsr, pPhrase, &pExpr->bEof);
-        pExpr->iDocid = pPhrase->doclist.iDocid;
-        break;
-      }
-    }
-  }
-}
-
-/*
-** If *pRc is not SQLITE_OK, or if pExpr is not the root node of a NEAR
-** cluster, then this function returns 1 immediately.
-**
-** Otherwise, it checks if the current row really does match the NEAR 
-** expression, using the data currently stored in the position lists 
-** (Fts3Expr->pPhrase.doclist.pList/nList) for each phrase in the expression. 
-**
-** If the current row is a match, the position list associated with each
-** phrase in the NEAR expression is edited in place to contain only those
-** phrase instances sufficiently close to their peers to satisfy all NEAR
-** constraints. In this case it returns 1. If the NEAR expression does not 
-** match the current row, 0 is returned. The position lists may or may not
-** be edited if 0 is returned.
-*/
-static int fts3EvalNearTest(Fts3Expr *pExpr, int *pRc){
-  int res = 1;
-
-  /* The following block runs if pExpr is the root of a NEAR query.
-  ** For example, the query:
-  **
-  **         "w" NEAR "x" NEAR "y" NEAR "z"
-  **
-  ** which is represented in tree form as:
-  **
-  **                               |
-  **                          +--NEAR--+      <-- root of NEAR query
-  **                          |        |
-  **                     +--NEAR--+   "z"
-  **                     |        |
-  **                +--NEAR--+   "y"
-  **                |        |
-  **               "w"      "x"
-  **
-  ** The right-hand child of a NEAR node is always a phrase. The 
-  ** left-hand child may be either a phrase or a NEAR node. There are
-  ** no exceptions to this - it's the way the parser in fts3_expr.c works.
-  */
-  if( *pRc==SQLITE_OK 
-   && pExpr->eType==FTSQUERY_NEAR 
-   && (pExpr->pParent==0 || pExpr->pParent->eType!=FTSQUERY_NEAR)
-  ){
-    Fts3Expr *p; 
-    tdsqlite3_int64 nTmp = 0;       /* Bytes of temp space */
-    char *aTmp;                   /* Temp space for PoslistNearMerge() */
-
-    /* Allocate temporary working space. */
-    for(p=pExpr; p->pLeft; p=p->pLeft){
-      assert( p->pRight->pPhrase->doclist.nList>0 );
-      nTmp += p->pRight->pPhrase->doclist.nList;
-    }
-    nTmp += p->pPhrase->doclist.nList;
-    aTmp = tdsqlite3_malloc64(nTmp*2);
-    if( !aTmp ){
-      *pRc = SQLITE_NOMEM;
-      res = 0;
-    }else{
-      char *aPoslist = p->pPhrase->doclist.pList;
-      int nToken = p->pPhrase->nToken;
-
-      for(p=p->pParent;res && p && p->eType==FTSQUERY_NEAR; p=p->pParent){
-        Fts3Phrase *pPhrase = p->pRight->pPhrase;
-        int nNear = p->nNear;
-        res = fts3EvalNearTrim(nNear, aTmp, &aPoslist, &nToken, pPhrase);
-      }
-
-      aPoslist = pExpr->pRight->pPhrase->doclist.pList;
-      nToken = pExpr->pRight->pPhrase->nToken;
-      for(p=pExpr->pLeft; p && res; p=p->pLeft){
-        int nNear;
-        Fts3Phrase *pPhrase;
-        assert( p->pParent && p->pParent->pLeft==p );
-        nNear = p->pParent->nNear;
-        pPhrase = (
-            p->eType==FTSQUERY_NEAR ? p->pRight->pPhrase : p->pPhrase
-        );
-        res = fts3EvalNearTrim(nNear, aTmp, &aPoslist, &nToken, pPhrase);
-      }
-    }
-
-    tdsqlite3_free(aTmp);
-  }
-
-  return res;
-}
-
-/*
-** This function is a helper function for tdsqlite3Fts3EvalTestDeferred().
-** Assuming no error occurs or has occurred, It returns non-zero if the
-** expression passed as the second argument matches the row that pCsr 
-** currently points to, or zero if it does not.
-**
-** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
-** If an error occurs during execution of this function, *pRc is set to 
-** the appropriate SQLite error code. In this case the returned value is 
-** undefined.
-*/
-static int fts3EvalTestExpr(
-  Fts3Cursor *pCsr,               /* FTS cursor handle */
-  Fts3Expr *pExpr,                /* Expr to test. May or may not be root. */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  int bHit = 1;                   /* Return value */
-  if( *pRc==SQLITE_OK ){
-    switch( pExpr->eType ){
-      case FTSQUERY_NEAR:
-      case FTSQUERY_AND:
-        bHit = (
-            fts3EvalTestExpr(pCsr, pExpr->pLeft, pRc)
-         && fts3EvalTestExpr(pCsr, pExpr->pRight, pRc)
-         && fts3EvalNearTest(pExpr, pRc)
-        );
-
-        /* If the NEAR expression does not match any rows, zero the doclist for 
-        ** all phrases involved in the NEAR. This is because the snippet(),
-        ** offsets() and matchinfo() functions are not supposed to recognize 
-        ** any instances of phrases that are part of unmatched NEAR queries. 
-        ** For example if this expression:
-        **
-        **    ... MATCH 'a OR (b NEAR c)'
-        **
-        ** is matched against a row containing:
-        **
-        **        'a b d e'
-        **
-        ** then any snippet() should ony highlight the "a" term, not the "b"
-        ** (as "b" is part of a non-matching NEAR clause).
-        */
-        if( bHit==0 
-         && pExpr->eType==FTSQUERY_NEAR 
-         && (pExpr->pParent==0 || pExpr->pParent->eType!=FTSQUERY_NEAR)
-        ){
-          Fts3Expr *p;
-          for(p=pExpr; p->pPhrase==0; p=p->pLeft){
-            if( p->pRight->iDocid==pCsr->iPrevId ){
-              fts3EvalInvalidatePoslist(p->pRight->pPhrase);
-            }
-          }
-          if( p->iDocid==pCsr->iPrevId ){
-            fts3EvalInvalidatePoslist(p->pPhrase);
-          }
-        }
-
-        break;
-
-      case FTSQUERY_OR: {
-        int bHit1 = fts3EvalTestExpr(pCsr, pExpr->pLeft, pRc);
-        int bHit2 = fts3EvalTestExpr(pCsr, pExpr->pRight, pRc);
-        bHit = bHit1 || bHit2;
-        break;
-      }
-
-      case FTSQUERY_NOT:
-        bHit = (
-            fts3EvalTestExpr(pCsr, pExpr->pLeft, pRc)
-         && !fts3EvalTestExpr(pCsr, pExpr->pRight, pRc)
-        );
-        break;
-
-      default: {
-#ifndef SQLITE_DISABLE_FTS4_DEFERRED
-        if( pCsr->pDeferred 
-         && (pExpr->iDocid==pCsr->iPrevId || pExpr->bDeferred)
-        ){
-          Fts3Phrase *pPhrase = pExpr->pPhrase;
-          assert( pExpr->bDeferred || pPhrase->doclist.bFreeList==0 );
-          if( pExpr->bDeferred ){
-            fts3EvalInvalidatePoslist(pPhrase);
-          }
-          *pRc = fts3EvalDeferredPhrase(pCsr, pPhrase);
-          bHit = (pPhrase->doclist.pList!=0);
-          pExpr->iDocid = pCsr->iPrevId;
-        }else
-#endif
-        {
-          bHit = (pExpr->bEof==0 && pExpr->iDocid==pCsr->iPrevId);
-        }
-        break;
-      }
-    }
-  }
-  return bHit;
-}
-
-/*
-** This function is called as the second part of each xNext operation when
-** iterating through the results of a full-text query. At this point the
-** cursor points to a row that matches the query expression, with the
-** following caveats:
-**
-**   * Up until this point, "NEAR" operators in the expression have been
-**     treated as "AND".
-**
-**   * Deferred tokens have not yet been considered.
-**
-** If *pRc is not SQLITE_OK when this function is called, it immediately
-** returns 0. Otherwise, it tests whether or not after considering NEAR
-** operators and deferred tokens the current row is still a match for the
-** expression. It returns 1 if both of the following are true:
-**
-**   1. *pRc is SQLITE_OK when this function returns, and
-**
-**   2. After scanning the current FTS table row for the deferred tokens,
-**      it is determined that the row does *not* match the query.
-**
-** Or, if no error occurs and it seems the current row does match the FTS
-** query, return 0.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3EvalTestDeferred(Fts3Cursor *pCsr, int *pRc){
-  int rc = *pRc;
-  int bMiss = 0;
-  if( rc==SQLITE_OK ){
-
-    /* If there are one or more deferred tokens, load the current row into
-    ** memory and scan it to determine the position list for each deferred
-    ** token. Then, see if this row is really a match, considering deferred
-    ** tokens and NEAR operators (neither of which were taken into account
-    ** earlier, by fts3EvalNextRow()). 
-    */
-    if( pCsr->pDeferred ){
-      rc = fts3CursorSeek(0, pCsr);
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3Fts3CacheDeferredDoclists(pCsr);
-      }
-    }
-    bMiss = (0==fts3EvalTestExpr(pCsr, pCsr->pExpr, &rc));
-
-    /* Free the position-lists accumulated for each deferred token above. */
-    tdsqlite3Fts3FreeDeferredDoclists(pCsr);
-    *pRc = rc;
-  }
-  return (rc==SQLITE_OK && bMiss);
-}
-
-/*
-** Advance to the next document that matches the FTS expression in
-** Fts3Cursor.pExpr.
-*/
-static int fts3EvalNext(Fts3Cursor *pCsr){
-  int rc = SQLITE_OK;             /* Return Code */
-  Fts3Expr *pExpr = pCsr->pExpr;
-  assert( pCsr->isEof==0 );
-  if( pExpr==0 ){
-    pCsr->isEof = 1;
-  }else{
-    do {
-      if( pCsr->isRequireSeek==0 ){
-        tdsqlite3_reset(pCsr->pStmt);
-      }
-      assert( tdsqlite3_data_count(pCsr->pStmt)==0 );
-      fts3EvalNextRow(pCsr, pExpr, &rc);
-      pCsr->isEof = pExpr->bEof;
-      pCsr->isRequireSeek = 1;
-      pCsr->isMatchinfoNeeded = 1;
-      pCsr->iPrevId = pExpr->iDocid;
-    }while( pCsr->isEof==0 && tdsqlite3Fts3EvalTestDeferred(pCsr, &rc) );
-  }
-
-  /* Check if the cursor is past the end of the docid range specified
-  ** by Fts3Cursor.iMinDocid/iMaxDocid. If so, set the EOF flag.  */
-  if( rc==SQLITE_OK && (
-        (pCsr->bDesc==0 && pCsr->iPrevId>pCsr->iMaxDocid)
-     || (pCsr->bDesc!=0 && pCsr->iPrevId<pCsr->iMinDocid)
-  )){
-    pCsr->isEof = 1;
-  }
-
-  return rc;
-}
-
-/*
-** Restart interation for expression pExpr so that the next call to
-** fts3EvalNext() visits the first row. Do not allow incremental 
-** loading or merging of phrase doclists for this iteration.
-**
-** If *pRc is other than SQLITE_OK when this function is called, it is
-** a no-op. If an error occurs within this function, *pRc is set to an
-** SQLite error code before returning.
-*/
-static void fts3EvalRestart(
-  Fts3Cursor *pCsr,
-  Fts3Expr *pExpr,
-  int *pRc
-){
-  if( pExpr && *pRc==SQLITE_OK ){
-    Fts3Phrase *pPhrase = pExpr->pPhrase;
-
-    if( pPhrase ){
-      fts3EvalInvalidatePoslist(pPhrase);
-      if( pPhrase->bIncr ){
-        int i;
-        for(i=0; i<pPhrase->nToken; i++){
-          Fts3PhraseToken *pToken = &pPhrase->aToken[i];
-          assert( pToken->pDeferred==0 );
-          if( pToken->pSegcsr ){
-            tdsqlite3Fts3MsrIncrRestart(pToken->pSegcsr);
-          }
-        }
-        *pRc = fts3EvalPhraseStart(pCsr, 0, pPhrase);
-      }
-      pPhrase->doclist.pNextDocid = 0;
-      pPhrase->doclist.iDocid = 0;
-      pPhrase->pOrPoslist = 0;
-    }
-
-    pExpr->iDocid = 0;
-    pExpr->bEof = 0;
-    pExpr->bStart = 0;
-
-    fts3EvalRestart(pCsr, pExpr->pLeft, pRc);
-    fts3EvalRestart(pCsr, pExpr->pRight, pRc);
-  }
-}
-
-/*
-** After allocating the Fts3Expr.aMI[] array for each phrase in the 
-** expression rooted at pExpr, the cursor iterates through all rows matched
-** by pExpr, calling this function for each row. This function increments
-** the values in Fts3Expr.aMI[] according to the position-list currently
-** found in Fts3Expr.pPhrase->doclist.pList for each of the phrase 
-** expression nodes.
-*/
-static void fts3EvalUpdateCounts(Fts3Expr *pExpr, int nCol){
-  if( pExpr ){
-    Fts3Phrase *pPhrase = pExpr->pPhrase;
-    if( pPhrase && pPhrase->doclist.pList ){
-      int iCol = 0;
-      char *p = pPhrase->doclist.pList;
-
-      do{
-        u8 c = 0;
-        int iCnt = 0;
-        while( 0xFE & (*p | c) ){
-          if( (c&0x80)==0 ) iCnt++;
-          c = *p++ & 0x80;
-        }
-
-        /* aMI[iCol*3 + 1] = Number of occurrences
-        ** aMI[iCol*3 + 2] = Number of rows containing at least one instance
-        */
-        pExpr->aMI[iCol*3 + 1] += iCnt;
-        pExpr->aMI[iCol*3 + 2] += (iCnt>0);
-        if( *p==0x00 ) break;
-        p++;
-        p += fts3GetVarint32(p, &iCol);
-      }while( iCol<nCol );
-    }
-
-    fts3EvalUpdateCounts(pExpr->pLeft, nCol);
-    fts3EvalUpdateCounts(pExpr->pRight, nCol);
-  }
-}
-
-/*
-** Expression pExpr must be of type FTSQUERY_PHRASE.
-**
-** If it is not already allocated and populated, this function allocates and
-** populates the Fts3Expr.aMI[] array for expression pExpr. If pExpr is part
-** of a NEAR expression, then it also allocates and populates the same array
-** for all other phrases that are part of the NEAR expression.
-**
-** SQLITE_OK is returned if the aMI[] array is successfully allocated and
-** populated. Otherwise, if an error occurs, an SQLite error code is returned.
-*/
-static int fts3EvalGatherStats(
-  Fts3Cursor *pCsr,               /* Cursor object */
-  Fts3Expr *pExpr                 /* FTSQUERY_PHRASE expression */
-){
-  int rc = SQLITE_OK;             /* Return code */
-
-  assert( pExpr->eType==FTSQUERY_PHRASE );
-  if( pExpr->aMI==0 ){
-    Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-    Fts3Expr *pRoot;                /* Root of NEAR expression */
-    Fts3Expr *p;                    /* Iterator used for several purposes */
-
-    tdsqlite3_int64 iPrevId = pCsr->iPrevId;
-    tdsqlite3_int64 iDocid;
-    u8 bEof;
-
-    /* Find the root of the NEAR expression */
-    pRoot = pExpr;
-    while( pRoot->pParent && pRoot->pParent->eType==FTSQUERY_NEAR ){
-      pRoot = pRoot->pParent;
-    }
-    iDocid = pRoot->iDocid;
-    bEof = pRoot->bEof;
-    assert( pRoot->bStart );
-
-    /* Allocate space for the aMSI[] array of each FTSQUERY_PHRASE node */
-    for(p=pRoot; p; p=p->pLeft){
-      Fts3Expr *pE = (p->eType==FTSQUERY_PHRASE?p:p->pRight);
-      assert( pE->aMI==0 );
-      pE->aMI = (u32 *)tdsqlite3_malloc64(pTab->nColumn * 3 * sizeof(u32));
-      if( !pE->aMI ) return SQLITE_NOMEM;
-      memset(pE->aMI, 0, pTab->nColumn * 3 * sizeof(u32));
-    }
-
-    fts3EvalRestart(pCsr, pRoot, &rc);
-
-    while( pCsr->isEof==0 && rc==SQLITE_OK ){
-
-      do {
-        /* Ensure the %_content statement is reset. */
-        if( pCsr->isRequireSeek==0 ) tdsqlite3_reset(pCsr->pStmt);
-        assert( tdsqlite3_data_count(pCsr->pStmt)==0 );
-
-        /* Advance to the next document */
-        fts3EvalNextRow(pCsr, pRoot, &rc);
-        pCsr->isEof = pRoot->bEof;
-        pCsr->isRequireSeek = 1;
-        pCsr->isMatchinfoNeeded = 1;
-        pCsr->iPrevId = pRoot->iDocid;
-      }while( pCsr->isEof==0 
-           && pRoot->eType==FTSQUERY_NEAR 
-           && tdsqlite3Fts3EvalTestDeferred(pCsr, &rc) 
-      );
-
-      if( rc==SQLITE_OK && pCsr->isEof==0 ){
-        fts3EvalUpdateCounts(pRoot, pTab->nColumn);
-      }
-    }
-
-    pCsr->isEof = 0;
-    pCsr->iPrevId = iPrevId;
-
-    if( bEof ){
-      pRoot->bEof = bEof;
-    }else{
-      /* Caution: pRoot may iterate through docids in ascending or descending
-      ** order. For this reason, even though it seems more defensive, the 
-      ** do loop can not be written:
-      **
-      **   do {...} while( pRoot->iDocid<iDocid && rc==SQLITE_OK );
-      */
-      fts3EvalRestart(pCsr, pRoot, &rc);
-      do {
-        fts3EvalNextRow(pCsr, pRoot, &rc);
-        assert( pRoot->bEof==0 );
-      }while( pRoot->iDocid!=iDocid && rc==SQLITE_OK );
-    }
-  }
-  return rc;
-}
-
-/*
-** This function is used by the matchinfo() module to query a phrase 
-** expression node for the following information:
-**
-**   1. The total number of occurrences of the phrase in each column of 
-**      the FTS table (considering all rows), and
-**
-**   2. For each column, the number of rows in the table for which the
-**      column contains at least one instance of the phrase.
-**
-** If no error occurs, SQLITE_OK is returned and the values for each column
-** written into the array aiOut as follows:
-**
-**   aiOut[iCol*3 + 1] = Number of occurrences
-**   aiOut[iCol*3 + 2] = Number of rows containing at least one instance
-**
-** Caveats:
-**
-**   * If a phrase consists entirely of deferred tokens, then all output 
-**     values are set to the number of documents in the table. In other
-**     words we assume that very common tokens occur exactly once in each 
-**     column of each row of the table.
-**
-**   * If a phrase contains some deferred tokens (and some non-deferred 
-**     tokens), count the potential occurrence identified by considering
-**     the non-deferred tokens instead of actual phrase occurrences.
-**
-**   * If the phrase is part of a NEAR expression, then only phrase instances
-**     that meet the NEAR constraint are included in the counts.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3EvalPhraseStats(
-  Fts3Cursor *pCsr,               /* FTS cursor handle */
-  Fts3Expr *pExpr,                /* Phrase expression */
-  u32 *aiOut                      /* Array to write results into (see above) */
-){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  int rc = SQLITE_OK;
-  int iCol;
-
-  if( pExpr->bDeferred && pExpr->pParent->eType!=FTSQUERY_NEAR ){
-    assert( pCsr->nDoc>0 );
-    for(iCol=0; iCol<pTab->nColumn; iCol++){
-      aiOut[iCol*3 + 1] = (u32)pCsr->nDoc;
-      aiOut[iCol*3 + 2] = (u32)pCsr->nDoc;
-    }
-  }else{
-    rc = fts3EvalGatherStats(pCsr, pExpr);
-    if( rc==SQLITE_OK ){
-      assert( pExpr->aMI );
-      for(iCol=0; iCol<pTab->nColumn; iCol++){
-        aiOut[iCol*3 + 1] = pExpr->aMI[iCol*3 + 1];
-        aiOut[iCol*3 + 2] = pExpr->aMI[iCol*3 + 2];
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** The expression pExpr passed as the second argument to this function
-** must be of type FTSQUERY_PHRASE. 
-**
-** The returned value is either NULL or a pointer to a buffer containing
-** a position-list indicating the occurrences of the phrase in column iCol
-** of the current row. 
-**
-** More specifically, the returned buffer contains 1 varint for each 
-** occurrence of the phrase in the column, stored using the normal (delta+2) 
-** compression and is terminated by either an 0x01 or 0x00 byte. For example,
-** if the requested column contains "a b X c d X X" and the position-list
-** for 'X' is requested, the buffer returned may contain:
-**
-**     0x04 0x05 0x03 0x01   or   0x04 0x05 0x03 0x00
-**
-** This function works regardless of whether or not the phrase is deferred,
-** incremental, or neither.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3EvalPhrasePoslist(
-  Fts3Cursor *pCsr,               /* FTS3 cursor object */
-  Fts3Expr *pExpr,                /* Phrase to return doclist for */
-  int iCol,                       /* Column to return position list for */
-  char **ppOut                    /* OUT: Pointer to position list */
-){
-  Fts3Phrase *pPhrase = pExpr->pPhrase;
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  char *pIter;
-  int iThis;
-  tdsqlite3_int64 iDocid;
-
-  /* If this phrase is applies specifically to some column other than 
-  ** column iCol, return a NULL pointer.  */
-  *ppOut = 0;
-  assert( iCol>=0 && iCol<pTab->nColumn );
-  if( (pPhrase->iColumn<pTab->nColumn && pPhrase->iColumn!=iCol) ){
-    return SQLITE_OK;
-  }
-
-  iDocid = pExpr->iDocid;
-  pIter = pPhrase->doclist.pList;
-  if( iDocid!=pCsr->iPrevId || pExpr->bEof ){
-    int rc = SQLITE_OK;
-    int bDescDoclist = pTab->bDescIdx;      /* For DOCID_CMP macro */
-    int bOr = 0;
-    u8 bTreeEof = 0;
-    Fts3Expr *p;                  /* Used to iterate from pExpr to root */
-    Fts3Expr *pNear;              /* Most senior NEAR ancestor (or pExpr) */
-    int bMatch;
-
-    /* Check if this phrase descends from an OR expression node. If not, 
-    ** return NULL. Otherwise, the entry that corresponds to docid 
-    ** pCsr->iPrevId may lie earlier in the doclist buffer. Or, if the
-    ** tree that the node is part of has been marked as EOF, but the node
-    ** itself is not EOF, then it may point to an earlier entry. */
-    pNear = pExpr;
-    for(p=pExpr->pParent; p; p=p->pParent){
-      if( p->eType==FTSQUERY_OR ) bOr = 1;
-      if( p->eType==FTSQUERY_NEAR ) pNear = p;
-      if( p->bEof ) bTreeEof = 1;
-    }
-    if( bOr==0 ) return SQLITE_OK;
-
-    /* This is the descendent of an OR node. In this case we cannot use
-    ** an incremental phrase. Load the entire doclist for the phrase
-    ** into memory in this case.  */
-    if( pPhrase->bIncr ){
-      int bEofSave = pNear->bEof;
-      fts3EvalRestart(pCsr, pNear, &rc);
-      while( rc==SQLITE_OK && !pNear->bEof ){
-        fts3EvalNextRow(pCsr, pNear, &rc);
-        if( bEofSave==0 && pNear->iDocid==iDocid ) break;
-      }
-      assert( rc!=SQLITE_OK || pPhrase->bIncr==0 );
-    }
-    if( bTreeEof ){
-      while( rc==SQLITE_OK && !pNear->bEof ){
-        fts3EvalNextRow(pCsr, pNear, &rc);
-      }
-    }
-    if( rc!=SQLITE_OK ) return rc;
-
-    bMatch = 1;
-    for(p=pNear; p; p=p->pLeft){
-      u8 bEof = 0;
-      Fts3Expr *pTest = p;
-      Fts3Phrase *pPh;
-      assert( pTest->eType==FTSQUERY_NEAR || pTest->eType==FTSQUERY_PHRASE );
-      if( pTest->eType==FTSQUERY_NEAR ) pTest = pTest->pRight;
-      assert( pTest->eType==FTSQUERY_PHRASE );
-      pPh = pTest->pPhrase;
-
-      pIter = pPh->pOrPoslist;
-      iDocid = pPh->iOrDocid;
-      if( pCsr->bDesc==bDescDoclist ){
-        bEof = !pPh->doclist.nAll ||
-          (pIter >= (pPh->doclist.aAll + pPh->doclist.nAll));
-        while( (pIter==0 || DOCID_CMP(iDocid, pCsr->iPrevId)<0 ) && bEof==0 ){
-          tdsqlite3Fts3DoclistNext(
-              bDescDoclist, pPh->doclist.aAll, pPh->doclist.nAll, 
-              &pIter, &iDocid, &bEof
-          );
-        }
-      }else{
-        bEof = !pPh->doclist.nAll || (pIter && pIter<=pPh->doclist.aAll);
-        while( (pIter==0 || DOCID_CMP(iDocid, pCsr->iPrevId)>0 ) && bEof==0 ){
-          int dummy;
-          tdsqlite3Fts3DoclistPrev(
-              bDescDoclist, pPh->doclist.aAll, pPh->doclist.nAll, 
-              &pIter, &iDocid, &dummy, &bEof
-              );
-        }
-      }
-      pPh->pOrPoslist = pIter;
-      pPh->iOrDocid = iDocid;
-      if( bEof || iDocid!=pCsr->iPrevId ) bMatch = 0;
-    }
-
-    if( bMatch ){
-      pIter = pPhrase->pOrPoslist;
-    }else{
-      pIter = 0;
-    }
-  }
-  if( pIter==0 ) return SQLITE_OK;
-
-  if( *pIter==0x01 ){
-    pIter++;
-    pIter += fts3GetVarint32(pIter, &iThis);
-  }else{
-    iThis = 0;
-  }
-  while( iThis<iCol ){
-    fts3ColumnlistCopy(0, &pIter);
-    if( *pIter==0x00 ) return SQLITE_OK;
-    pIter++;
-    pIter += fts3GetVarint32(pIter, &iThis);
-  }
-  if( *pIter==0x00 ){
-    pIter = 0;
-  }
-
-  *ppOut = ((iCol==iThis)?pIter:0);
-  return SQLITE_OK;
-}
-
-/*
-** Free all components of the Fts3Phrase structure that were allocated by
-** the eval module. Specifically, this means to free:
-**
-**   * the contents of pPhrase->doclist, and
-**   * any Fts3MultiSegReader objects held by phrase tokens.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3EvalPhraseCleanup(Fts3Phrase *pPhrase){
-  if( pPhrase ){
-    int i;
-    tdsqlite3_free(pPhrase->doclist.aAll);
-    fts3EvalInvalidatePoslist(pPhrase);
-    memset(&pPhrase->doclist, 0, sizeof(Fts3Doclist));
-    for(i=0; i<pPhrase->nToken; i++){
-      fts3SegReaderCursorFree(pPhrase->aToken[i].pSegcsr);
-      pPhrase->aToken[i].pSegcsr = 0;
-    }
-  }
-}
-
-
-/*
-** Return SQLITE_CORRUPT_VTAB.
-*/
-#ifdef SQLITE_DEBUG
-SQLITE_PRIVATE int tdsqlite3Fts3Corrupt(){
-  return SQLITE_CORRUPT_VTAB;
-}
-#endif
-
-#if !SQLITE_CORE
-/*
-** Initialize API pointer table, if required.
-*/
-#ifdef _WIN32
-__declspec(dllexport)
-#endif
-SQLITE_API int tdsqlite3_fts3_init(
-  tdsqlite3 *db, 
-  char **pzErrMsg,
-  const tdsqlite3_api_routines *pApi
-){
-  SQLITE_EXTENSION_INIT2(pApi)
-  return tdsqlite3Fts3Init(db);
-}
-#endif
-
-#endif
-
-/************** End of fts3.c ************************************************/
-/************** Begin file fts3_aux.c ****************************************/
-/*
-** 2011 Jan 27
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-*/
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <string.h> */
-/* #include <assert.h> */
-
-typedef struct Fts3auxTable Fts3auxTable;
-typedef struct Fts3auxCursor Fts3auxCursor;
-
-struct Fts3auxTable {
-  tdsqlite3_vtab base;              /* Base class used by SQLite core */
-  Fts3Table *pFts3Tab;
-};
-
-struct Fts3auxCursor {
-  tdsqlite3_vtab_cursor base;       /* Base class used by SQLite core */
-  Fts3MultiSegReader csr;        /* Must be right after "base" */
-  Fts3SegFilter filter;
-  char *zStop;
-  int nStop;                      /* Byte-length of string zStop */
-  int iLangid;                    /* Language id to query */
-  int isEof;                      /* True if cursor is at EOF */
-  tdsqlite3_int64 iRowid;           /* Current rowid */
-
-  int iCol;                       /* Current value of 'col' column */
-  int nStat;                      /* Size of aStat[] array */
-  struct Fts3auxColstats {
-    tdsqlite3_int64 nDoc;           /* 'documents' values for current csr row */
-    tdsqlite3_int64 nOcc;           /* 'occurrences' values for current csr row */
-  } *aStat;
-};
-
-/*
-** Schema of the terms table.
-*/
-#define FTS3_AUX_SCHEMA \
-  "CREATE TABLE x(term, col, documents, occurrences, languageid HIDDEN)"
-
-/*
-** This function does all the work for both the xConnect and xCreate methods.
-** These tables have no persistent representation of their own, so xConnect
-** and xCreate are identical operations.
-*/
-static int fts3auxConnectMethod(
-  tdsqlite3 *db,                    /* Database connection */
-  void *pUnused,                  /* Unused */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVtab,          /* OUT: New tdsqlite3_vtab object */
-  char **pzErr                    /* OUT: tdsqlite3_malloc'd error message */
-){
-  char const *zDb;                /* Name of database (e.g. "main") */
-  char const *zFts3;              /* Name of fts3 table */
-  int nDb;                        /* Result of strlen(zDb) */
-  int nFts3;                      /* Result of strlen(zFts3) */
-  tdsqlite3_int64 nByte;            /* Bytes of space to allocate here */
-  int rc;                         /* value returned by declare_vtab() */
-  Fts3auxTable *p;                /* Virtual table object to return */
-
-  UNUSED_PARAMETER(pUnused);
-
-  /* The user should invoke this in one of two forms:
-  **
-  **     CREATE VIRTUAL TABLE xxx USING fts4aux(fts4-table);
-  **     CREATE VIRTUAL TABLE xxx USING fts4aux(fts4-table-db, fts4-table);
-  */
-  if( argc!=4 && argc!=5 ) goto bad_args;
-
-  zDb = argv[1]; 
-  nDb = (int)strlen(zDb);
-  if( argc==5 ){
-    if( nDb==4 && 0==tdsqlite3_strnicmp("temp", zDb, 4) ){
-      zDb = argv[3]; 
-      nDb = (int)strlen(zDb);
-      zFts3 = argv[4];
-    }else{
-      goto bad_args;
-    }
-  }else{
-    zFts3 = argv[3];
-  }
-  nFts3 = (int)strlen(zFts3);
-
-  rc = tdsqlite3_declare_vtab(db, FTS3_AUX_SCHEMA);
-  if( rc!=SQLITE_OK ) return rc;
-
-  nByte = sizeof(Fts3auxTable) + sizeof(Fts3Table) + nDb + nFts3 + 2;
-  p = (Fts3auxTable *)tdsqlite3_malloc64(nByte);
-  if( !p ) return SQLITE_NOMEM;
-  memset(p, 0, nByte);
-
-  p->pFts3Tab = (Fts3Table *)&p[1];
-  p->pFts3Tab->zDb = (char *)&p->pFts3Tab[1];
-  p->pFts3Tab->zName = &p->pFts3Tab->zDb[nDb+1];
-  p->pFts3Tab->db = db;
-  p->pFts3Tab->nIndex = 1;
-
-  memcpy((char *)p->pFts3Tab->zDb, zDb, nDb);
-  memcpy((char *)p->pFts3Tab->zName, zFts3, nFts3);
-  tdsqlite3Fts3Dequote((char *)p->pFts3Tab->zName);
-
-  *ppVtab = (tdsqlite3_vtab *)p;
-  return SQLITE_OK;
-
- bad_args:
-  tdsqlite3Fts3ErrMsg(pzErr, "invalid arguments to fts4aux constructor");
-  return SQLITE_ERROR;
-}
-
-/*
-** This function does the work for both the xDisconnect and xDestroy methods.
-** These tables have no persistent representation of their own, so xDisconnect
-** and xDestroy are identical operations.
-*/
-static int fts3auxDisconnectMethod(tdsqlite3_vtab *pVtab){
-  Fts3auxTable *p = (Fts3auxTable *)pVtab;
-  Fts3Table *pFts3 = p->pFts3Tab;
-  int i;
-
-  /* Free any prepared statements held */
-  for(i=0; i<SizeofArray(pFts3->aStmt); i++){
-    tdsqlite3_finalize(pFts3->aStmt[i]);
-  }
-  tdsqlite3_free(pFts3->zSegmentsTbl);
-  tdsqlite3_free(p);
-  return SQLITE_OK;
-}
-
-#define FTS4AUX_EQ_CONSTRAINT 1
-#define FTS4AUX_GE_CONSTRAINT 2
-#define FTS4AUX_LE_CONSTRAINT 4
-
-/*
-** xBestIndex - Analyze a WHERE and ORDER BY clause.
-*/
-static int fts3auxBestIndexMethod(
-  tdsqlite3_vtab *pVTab, 
-  tdsqlite3_index_info *pInfo
-){
-  int i;
-  int iEq = -1;
-  int iGe = -1;
-  int iLe = -1;
-  int iLangid = -1;
-  int iNext = 1;                  /* Next free argvIndex value */
-
-  UNUSED_PARAMETER(pVTab);
-
-  /* This vtab delivers always results in "ORDER BY term ASC" order. */
-  if( pInfo->nOrderBy==1 
-   && pInfo->aOrderBy[0].iColumn==0 
-   && pInfo->aOrderBy[0].desc==0
-  ){
-    pInfo->orderByConsumed = 1;
-  }
-
-  /* Search for equality and range constraints on the "term" column. 
-  ** And equality constraints on the hidden "languageid" column. */
-  for(i=0; i<pInfo->nConstraint; i++){
-    if( pInfo->aConstraint[i].usable ){
-      int op = pInfo->aConstraint[i].op;
-      int iCol = pInfo->aConstraint[i].iColumn;
-
-      if( iCol==0 ){
-        if( op==SQLITE_INDEX_CONSTRAINT_EQ ) iEq = i;
-        if( op==SQLITE_INDEX_CONSTRAINT_LT ) iLe = i;
-        if( op==SQLITE_INDEX_CONSTRAINT_LE ) iLe = i;
-        if( op==SQLITE_INDEX_CONSTRAINT_GT ) iGe = i;
-        if( op==SQLITE_INDEX_CONSTRAINT_GE ) iGe = i;
-      }
-      if( iCol==4 ){
-        if( op==SQLITE_INDEX_CONSTRAINT_EQ ) iLangid = i;
-      }
-    }
-  }
-
-  if( iEq>=0 ){
-    pInfo->idxNum = FTS4AUX_EQ_CONSTRAINT;
-    pInfo->aConstraintUsage[iEq].argvIndex = iNext++;
-    pInfo->estimatedCost = 5;
-  }else{
-    pInfo->idxNum = 0;
-    pInfo->estimatedCost = 20000;
-    if( iGe>=0 ){
-      pInfo->idxNum += FTS4AUX_GE_CONSTRAINT;
-      pInfo->aConstraintUsage[iGe].argvIndex = iNext++;
-      pInfo->estimatedCost /= 2;
-    }
-    if( iLe>=0 ){
-      pInfo->idxNum += FTS4AUX_LE_CONSTRAINT;
-      pInfo->aConstraintUsage[iLe].argvIndex = iNext++;
-      pInfo->estimatedCost /= 2;
-    }
-  }
-  if( iLangid>=0 ){
-    pInfo->aConstraintUsage[iLangid].argvIndex = iNext++;
-    pInfo->estimatedCost--;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** xOpen - Open a cursor.
-*/
-static int fts3auxOpenMethod(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCsr){
-  Fts3auxCursor *pCsr;            /* Pointer to cursor object to return */
-
-  UNUSED_PARAMETER(pVTab);
-
-  pCsr = (Fts3auxCursor *)tdsqlite3_malloc(sizeof(Fts3auxCursor));
-  if( !pCsr ) return SQLITE_NOMEM;
-  memset(pCsr, 0, sizeof(Fts3auxCursor));
-
-  *ppCsr = (tdsqlite3_vtab_cursor *)pCsr;
-  return SQLITE_OK;
-}
-
-/*
-** xClose - Close a cursor.
-*/
-static int fts3auxCloseMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts3Table *pFts3 = ((Fts3auxTable *)pCursor->pVtab)->pFts3Tab;
-  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
-
-  tdsqlite3Fts3SegmentsClose(pFts3);
-  tdsqlite3Fts3SegReaderFinish(&pCsr->csr);
-  tdsqlite3_free((void *)pCsr->filter.zTerm);
-  tdsqlite3_free(pCsr->zStop);
-  tdsqlite3_free(pCsr->aStat);
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-static int fts3auxGrowStatArray(Fts3auxCursor *pCsr, int nSize){
-  if( nSize>pCsr->nStat ){
-    struct Fts3auxColstats *aNew;
-    aNew = (struct Fts3auxColstats *)tdsqlite3_realloc64(pCsr->aStat, 
-        sizeof(struct Fts3auxColstats) * nSize
-    );
-    if( aNew==0 ) return SQLITE_NOMEM;
-    memset(&aNew[pCsr->nStat], 0, 
-        sizeof(struct Fts3auxColstats) * (nSize - pCsr->nStat)
-    );
-    pCsr->aStat = aNew;
-    pCsr->nStat = nSize;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** xNext - Advance the cursor to the next row, if any.
-*/
-static int fts3auxNextMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
-  Fts3Table *pFts3 = ((Fts3auxTable *)pCursor->pVtab)->pFts3Tab;
-  int rc;
-
-  /* Increment our pretend rowid value. */
-  pCsr->iRowid++;
-
-  for(pCsr->iCol++; pCsr->iCol<pCsr->nStat; pCsr->iCol++){
-    if( pCsr->aStat[pCsr->iCol].nDoc>0 ) return SQLITE_OK;
-  }
-
-  rc = tdsqlite3Fts3SegReaderStep(pFts3, &pCsr->csr);
-  if( rc==SQLITE_ROW ){
-    int i = 0;
-    int nDoclist = pCsr->csr.nDoclist;
-    char *aDoclist = pCsr->csr.aDoclist;
-    int iCol;
-
-    int eState = 0;
-
-    if( pCsr->zStop ){
-      int n = (pCsr->nStop<pCsr->csr.nTerm) ? pCsr->nStop : pCsr->csr.nTerm;
-      int mc = memcmp(pCsr->zStop, pCsr->csr.zTerm, n);
-      if( mc<0 || (mc==0 && pCsr->csr.nTerm>pCsr->nStop) ){
-        pCsr->isEof = 1;
-        return SQLITE_OK;
-      }
-    }
-
-    if( fts3auxGrowStatArray(pCsr, 2) ) return SQLITE_NOMEM;
-    memset(pCsr->aStat, 0, sizeof(struct Fts3auxColstats) * pCsr->nStat);
-    iCol = 0;
-
-    while( i<nDoclist ){
-      tdsqlite3_int64 v = 0;
-
-      i += tdsqlite3Fts3GetVarint(&aDoclist[i], &v);
-      switch( eState ){
-        /* State 0. In this state the integer just read was a docid. */
-        case 0:
-          pCsr->aStat[0].nDoc++;
-          eState = 1;
-          iCol = 0;
-          break;
-
-        /* State 1. In this state we are expecting either a 1, indicating
-        ** that the following integer will be a column number, or the
-        ** start of a position list for column 0.  
-        ** 
-        ** The only difference between state 1 and state 2 is that if the
-        ** integer encountered in state 1 is not 0 or 1, then we need to
-        ** increment the column 0 "nDoc" count for this term.
-        */
-        case 1:
-          assert( iCol==0 );
-          if( v>1 ){
-            pCsr->aStat[1].nDoc++;
-          }
-          eState = 2;
-          /* fall through */
-
-        case 2:
-          if( v==0 ){       /* 0x00. Next integer will be a docid. */
-            eState = 0;
-          }else if( v==1 ){ /* 0x01. Next integer will be a column number. */
-            eState = 3;
-          }else{            /* 2 or greater. A position. */
-            pCsr->aStat[iCol+1].nOcc++;
-            pCsr->aStat[0].nOcc++;
-          }
-          break;
-
-        /* State 3. The integer just read is a column number. */
-        default: assert( eState==3 );
-          iCol = (int)v;
-          if( fts3auxGrowStatArray(pCsr, iCol+2) ) return SQLITE_NOMEM;
-          pCsr->aStat[iCol+1].nDoc++;
-          eState = 2;
-          break;
-      }
-    }
-
-    pCsr->iCol = 0;
-    rc = SQLITE_OK;
-  }else{
-    pCsr->isEof = 1;
-  }
-  return rc;
-}
-
-/*
-** xFilter - Initialize a cursor to point at the start of its data.
-*/
-static int fts3auxFilterMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
-  int idxNum,                     /* Strategy index */
-  const char *idxStr,             /* Unused */
-  int nVal,                       /* Number of elements in apVal */
-  tdsqlite3_value **apVal           /* Arguments for the indexing scheme */
-){
-  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
-  Fts3Table *pFts3 = ((Fts3auxTable *)pCursor->pVtab)->pFts3Tab;
-  int rc;
-  int isScan = 0;
-  int iLangVal = 0;               /* Language id to query */
-
-  int iEq = -1;                   /* Index of term=? value in apVal */
-  int iGe = -1;                   /* Index of term>=? value in apVal */
-  int iLe = -1;                   /* Index of term<=? value in apVal */
-  int iLangid = -1;               /* Index of languageid=? value in apVal */
-  int iNext = 0;
-
-  UNUSED_PARAMETER(nVal);
-  UNUSED_PARAMETER(idxStr);
-
-  assert( idxStr==0 );
-  assert( idxNum==FTS4AUX_EQ_CONSTRAINT || idxNum==0
-       || idxNum==FTS4AUX_LE_CONSTRAINT || idxNum==FTS4AUX_GE_CONSTRAINT
-       || idxNum==(FTS4AUX_LE_CONSTRAINT|FTS4AUX_GE_CONSTRAINT)
-  );
-
-  if( idxNum==FTS4AUX_EQ_CONSTRAINT ){
-    iEq = iNext++;
-  }else{
-    isScan = 1;
-    if( idxNum & FTS4AUX_GE_CONSTRAINT ){
-      iGe = iNext++;
-    }
-    if( idxNum & FTS4AUX_LE_CONSTRAINT ){
-      iLe = iNext++;
-    }
-  }
-  if( iNext<nVal ){
-    iLangid = iNext++;
-  }
-
-  /* In case this cursor is being reused, close and zero it. */
-  testcase(pCsr->filter.zTerm);
-  tdsqlite3Fts3SegReaderFinish(&pCsr->csr);
-  tdsqlite3_free((void *)pCsr->filter.zTerm);
-  tdsqlite3_free(pCsr->aStat);
-  memset(&pCsr->csr, 0, ((u8*)&pCsr[1]) - (u8*)&pCsr->csr);
-
-  pCsr->filter.flags = FTS3_SEGMENT_REQUIRE_POS|FTS3_SEGMENT_IGNORE_EMPTY;
-  if( isScan ) pCsr->filter.flags |= FTS3_SEGMENT_SCAN;
-
-  if( iEq>=0 || iGe>=0 ){
-    const unsigned char *zStr = tdsqlite3_value_text(apVal[0]);
-    assert( (iEq==0 && iGe==-1) || (iEq==-1 && iGe==0) );
-    if( zStr ){
-      pCsr->filter.zTerm = tdsqlite3_mprintf("%s", zStr);
-      if( pCsr->filter.zTerm==0 ) return SQLITE_NOMEM;
-      pCsr->filter.nTerm = (int)strlen(pCsr->filter.zTerm);
-    }
-  }
-
-  if( iLe>=0 ){
-    pCsr->zStop = tdsqlite3_mprintf("%s", tdsqlite3_value_text(apVal[iLe]));
-    if( pCsr->zStop==0 ) return SQLITE_NOMEM;
-    pCsr->nStop = (int)strlen(pCsr->zStop);
-  }
-  
-  if( iLangid>=0 ){
-    iLangVal = tdsqlite3_value_int(apVal[iLangid]);
-
-    /* If the user specified a negative value for the languageid, use zero
-    ** instead. This works, as the "languageid=?" constraint will also
-    ** be tested by the VDBE layer. The test will always be false (since
-    ** this module will not return a row with a negative languageid), and
-    ** so the overall query will return zero rows.  */
-    if( iLangVal<0 ) iLangVal = 0;
-  }
-  pCsr->iLangid = iLangVal;
-
-  rc = tdsqlite3Fts3SegReaderCursor(pFts3, iLangVal, 0, FTS3_SEGCURSOR_ALL,
-      pCsr->filter.zTerm, pCsr->filter.nTerm, 0, isScan, &pCsr->csr
-  );
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts3SegReaderStart(pFts3, &pCsr->csr, &pCsr->filter);
-  }
-
-  if( rc==SQLITE_OK ) rc = fts3auxNextMethod(pCursor);
-  return rc;
-}
-
-/*
-** xEof - Return true if the cursor is at EOF, or false otherwise.
-*/
-static int fts3auxEofMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
-  return pCsr->isEof;
-}
-
-/*
-** xColumn - Return a column value.
-*/
-static int fts3auxColumnMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  tdsqlite3_context *pCtx,          /* Context for tdsqlite3_result_xxx() calls */
-  int iCol                        /* Index of column to read value from */
-){
-  Fts3auxCursor *p = (Fts3auxCursor *)pCursor;
-
-  assert( p->isEof==0 );
-  switch( iCol ){
-    case 0: /* term */
-      tdsqlite3_result_text(pCtx, p->csr.zTerm, p->csr.nTerm, SQLITE_TRANSIENT);
-      break;
-
-    case 1: /* col */
-      if( p->iCol ){
-        tdsqlite3_result_int(pCtx, p->iCol-1);
-      }else{
-        tdsqlite3_result_text(pCtx, "*", -1, SQLITE_STATIC);
-      }
-      break;
-
-    case 2: /* documents */
-      tdsqlite3_result_int64(pCtx, p->aStat[p->iCol].nDoc);
-      break;
-
-    case 3: /* occurrences */
-      tdsqlite3_result_int64(pCtx, p->aStat[p->iCol].nOcc);
-      break;
-
-    default: /* languageid */
-      assert( iCol==4 );
-      tdsqlite3_result_int(pCtx, p->iLangid);
-      break;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** xRowid - Return the current rowid for the cursor.
-*/
-static int fts3auxRowidMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  sqlite_int64 *pRowid            /* OUT: Rowid value */
-){
-  Fts3auxCursor *pCsr = (Fts3auxCursor *)pCursor;
-  *pRowid = pCsr->iRowid;
-  return SQLITE_OK;
-}
-
-/*
-** Register the fts3aux module with database connection db. Return SQLITE_OK
-** if successful or an error code if tdsqlite3_create_module() fails.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3InitAux(tdsqlite3 *db){
-  static const tdsqlite3_module fts3aux_module = {
-     0,                           /* iVersion      */
-     fts3auxConnectMethod,        /* xCreate       */
-     fts3auxConnectMethod,        /* xConnect      */
-     fts3auxBestIndexMethod,      /* xBestIndex    */
-     fts3auxDisconnectMethod,     /* xDisconnect   */
-     fts3auxDisconnectMethod,     /* xDestroy      */
-     fts3auxOpenMethod,           /* xOpen         */
-     fts3auxCloseMethod,          /* xClose        */
-     fts3auxFilterMethod,         /* xFilter       */
-     fts3auxNextMethod,           /* xNext         */
-     fts3auxEofMethod,            /* xEof          */
-     fts3auxColumnMethod,         /* xColumn       */
-     fts3auxRowidMethod,          /* xRowid        */
-     0,                           /* xUpdate       */
-     0,                           /* xBegin        */
-     0,                           /* xSync         */
-     0,                           /* xCommit       */
-     0,                           /* xRollback     */
-     0,                           /* xFindFunction */
-     0,                           /* xRename       */
-     0,                           /* xSavepoint    */
-     0,                           /* xRelease      */
-     0,                           /* xRollbackTo   */
-     0                            /* xShadowName   */
-  };
-  int rc;                         /* Return code */
-
-  rc = tdsqlite3_create_module(db, "fts4aux", &fts3aux_module, 0);
-  return rc;
-}
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-
-/************** End of fts3_aux.c ********************************************/
-/************** Begin file fts3_expr.c ***************************************/
-/*
-** 2008 Nov 28
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This module contains code that implements a parser for fts3 query strings
-** (the right-hand argument to the MATCH operator). Because the supported 
-** syntax is relatively simple, the whole tokenizer/parser system is
-** hand-coded. 
-*/
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/*
-** By default, this module parses the legacy syntax that has been 
-** traditionally used by fts3. Or, if SQLITE_ENABLE_FTS3_PARENTHESIS
-** is defined, then it uses the new syntax. The differences between
-** the new and the old syntaxes are:
-**
-**  a) The new syntax supports parenthesis. The old does not.
-**
-**  b) The new syntax supports the AND and NOT operators. The old does not.
-**
-**  c) The old syntax supports the "-" token qualifier. This is not 
-**     supported by the new syntax (it is replaced by the NOT operator).
-**
-**  d) When using the old syntax, the OR operator has a greater precedence
-**     than an implicit AND. When using the new, both implicity and explicit
-**     AND operators have a higher precedence than OR.
-**
-** If compiled with SQLITE_TEST defined, then this module exports the
-** symbol "int tdsqlite3_fts3_enable_parentheses". Setting this variable
-** to zero causes the module to use the old syntax. If it is set to 
-** non-zero the new syntax is activated. This is so both syntaxes can
-** be tested using a single build of testfixture.
-**
-** The following describes the syntax supported by the fts3 MATCH
-** operator in a similar format to that used by the lemon parser
-** generator. This module does not use actually lemon, it uses a
-** custom parser.
-**
-**   query ::= andexpr (OR andexpr)*.
-**
-**   andexpr ::= notexpr (AND? notexpr)*.
-**
-**   notexpr ::= nearexpr (NOT nearexpr|-TOKEN)*.
-**   notexpr ::= LP query RP.
-**
-**   nearexpr ::= phrase (NEAR distance_opt nearexpr)*.
-**
-**   distance_opt ::= .
-**   distance_opt ::= / INTEGER.
-**
-**   phrase ::= TOKEN.
-**   phrase ::= COLUMN:TOKEN.
-**   phrase ::= "TOKEN TOKEN TOKEN...".
-*/
-
-#ifdef SQLITE_TEST
-SQLITE_API int tdsqlite3_fts3_enable_parentheses = 0;
-#else
-# ifdef SQLITE_ENABLE_FTS3_PARENTHESIS 
-#  define tdsqlite3_fts3_enable_parentheses 1
-# else
-#  define tdsqlite3_fts3_enable_parentheses 0
-# endif
-#endif
-
-/*
-** Default span for NEAR operators.
-*/
-#define SQLITE_FTS3_DEFAULT_NEAR_PARAM 10
-
-/* #include <string.h> */
-/* #include <assert.h> */
-
-/*
-** isNot:
-**   This variable is used by function getNextNode(). When getNextNode() is
-**   called, it sets ParseContext.isNot to true if the 'next node' is a 
-**   FTSQUERY_PHRASE with a unary "-" attached to it. i.e. "mysql" in the
-**   FTS3 query "sqlite -mysql". Otherwise, ParseContext.isNot is set to
-**   zero.
-*/
-typedef struct ParseContext ParseContext;
-struct ParseContext {
-  tdsqlite3_tokenizer *pTokenizer;      /* Tokenizer module */
-  int iLangid;                        /* Language id used with tokenizer */
-  const char **azCol;                 /* Array of column names for fts3 table */
-  int bFts4;                          /* True to allow FTS4-only syntax */
-  int nCol;                           /* Number of entries in azCol[] */
-  int iDefaultCol;                    /* Default column to query */
-  int isNot;                          /* True if getNextNode() sees a unary - */
-  tdsqlite3_context *pCtx;              /* Write error message here */
-  int nNest;                          /* Number of nested brackets */
-};
-
-/*
-** This function is equivalent to the standard isspace() function. 
-**
-** The standard isspace() can be awkward to use safely, because although it
-** is defined to accept an argument of type int, its behavior when passed
-** an integer that falls outside of the range of the unsigned char type
-** is undefined (and sometimes, "undefined" means segfault). This wrapper
-** is defined to accept an argument of type char, and always returns 0 for
-** any values that fall outside of the range of the unsigned char type (i.e.
-** negative values).
-*/
-static int fts3isspace(char c){
-  return c==' ' || c=='\t' || c=='\n' || c=='\r' || c=='\v' || c=='\f';
-}
-
-/*
-** Allocate nByte bytes of memory using tdsqlite3_malloc(). If successful,
-** zero the memory before returning a pointer to it. If unsuccessful, 
-** return NULL.
-*/
-static void *fts3MallocZero(tdsqlite3_int64 nByte){
-  void *pRet = tdsqlite3_malloc64(nByte);
-  if( pRet ) memset(pRet, 0, nByte);
-  return pRet;
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3OpenTokenizer(
-  tdsqlite3_tokenizer *pTokenizer,
-  int iLangid,
-  const char *z,
-  int n,
-  tdsqlite3_tokenizer_cursor **ppCsr
-){
-  tdsqlite3_tokenizer_module const *pModule = pTokenizer->pModule;
-  tdsqlite3_tokenizer_cursor *pCsr = 0;
-  int rc;
-
-  rc = pModule->xOpen(pTokenizer, z, n, &pCsr);
-  assert( rc==SQLITE_OK || pCsr==0 );
-  if( rc==SQLITE_OK ){
-    pCsr->pTokenizer = pTokenizer;
-    if( pModule->iVersion>=1 ){
-      rc = pModule->xLanguageid(pCsr, iLangid);
-      if( rc!=SQLITE_OK ){
-        pModule->xClose(pCsr);
-        pCsr = 0;
-      }
-    }
-  }
-  *ppCsr = pCsr;
-  return rc;
-}
-
-/*
-** Function getNextNode(), which is called by fts3ExprParse(), may itself
-** call fts3ExprParse(). So this forward declaration is required.
-*/
-static int fts3ExprParse(ParseContext *, const char *, int, Fts3Expr **, int *);
-
-/*
-** Extract the next token from buffer z (length n) using the tokenizer
-** and other information (column names etc.) in pParse. Create an Fts3Expr
-** structure of type FTSQUERY_PHRASE containing a phrase consisting of this
-** single token and set *ppExpr to point to it. If the end of the buffer is
-** reached before a token is found, set *ppExpr to zero. It is the
-** responsibility of the caller to eventually deallocate the allocated 
-** Fts3Expr structure (if any) by passing it to tdsqlite3_free().
-**
-** Return SQLITE_OK if successful, or SQLITE_NOMEM if a memory allocation
-** fails.
-*/
-static int getNextToken(
-  ParseContext *pParse,                   /* fts3 query parse context */
-  int iCol,                               /* Value for Fts3Phrase.iColumn */
-  const char *z, int n,                   /* Input string */
-  Fts3Expr **ppExpr,                      /* OUT: expression */
-  int *pnConsumed                         /* OUT: Number of bytes consumed */
-){
-  tdsqlite3_tokenizer *pTokenizer = pParse->pTokenizer;
-  tdsqlite3_tokenizer_module const *pModule = pTokenizer->pModule;
-  int rc;
-  tdsqlite3_tokenizer_cursor *pCursor;
-  Fts3Expr *pRet = 0;
-  int i = 0;
-
-  /* Set variable i to the maximum number of bytes of input to tokenize. */
-  for(i=0; i<n; i++){
-    if( tdsqlite3_fts3_enable_parentheses && (z[i]=='(' || z[i]==')') ) break;
-    if( z[i]=='"' ) break;
-  }
-
-  *pnConsumed = i;
-  rc = tdsqlite3Fts3OpenTokenizer(pTokenizer, pParse->iLangid, z, i, &pCursor);
-  if( rc==SQLITE_OK ){
-    const char *zToken;
-    int nToken = 0, iStart = 0, iEnd = 0, iPosition = 0;
-    tdsqlite3_int64 nByte;                    /* total space to allocate */
-
-    rc = pModule->xNext(pCursor, &zToken, &nToken, &iStart, &iEnd, &iPosition);
-    if( rc==SQLITE_OK ){
-      nByte = sizeof(Fts3Expr) + sizeof(Fts3Phrase) + nToken;
-      pRet = (Fts3Expr *)fts3MallocZero(nByte);
-      if( !pRet ){
-        rc = SQLITE_NOMEM;
-      }else{
-        pRet->eType = FTSQUERY_PHRASE;
-        pRet->pPhrase = (Fts3Phrase *)&pRet[1];
-        pRet->pPhrase->nToken = 1;
-        pRet->pPhrase->iColumn = iCol;
-        pRet->pPhrase->aToken[0].n = nToken;
-        pRet->pPhrase->aToken[0].z = (char *)&pRet->pPhrase[1];
-        memcpy(pRet->pPhrase->aToken[0].z, zToken, nToken);
-
-        if( iEnd<n && z[iEnd]=='*' ){
-          pRet->pPhrase->aToken[0].isPrefix = 1;
-          iEnd++;
-        }
-
-        while( 1 ){
-          if( !tdsqlite3_fts3_enable_parentheses 
-           && iStart>0 && z[iStart-1]=='-' 
-          ){
-            pParse->isNot = 1;
-            iStart--;
-          }else if( pParse->bFts4 && iStart>0 && z[iStart-1]=='^' ){
-            pRet->pPhrase->aToken[0].bFirst = 1;
-            iStart--;
-          }else{
-            break;
-          }
-        }
-
-      }
-      *pnConsumed = iEnd;
-    }else if( i && rc==SQLITE_DONE ){
-      rc = SQLITE_OK;
-    }
-
-    pModule->xClose(pCursor);
-  }
-  
-  *ppExpr = pRet;
-  return rc;
-}
-
-
-/*
-** Enlarge a memory allocation.  If an out-of-memory allocation occurs,
-** then free the old allocation.
-*/
-static void *fts3ReallocOrFree(void *pOrig, tdsqlite3_int64 nNew){
-  void *pRet = tdsqlite3_realloc64(pOrig, nNew);
-  if( !pRet ){
-    tdsqlite3_free(pOrig);
-  }
-  return pRet;
-}
-
-/*
-** Buffer zInput, length nInput, contains the contents of a quoted string
-** that appeared as part of an fts3 query expression. Neither quote character
-** is included in the buffer. This function attempts to tokenize the entire
-** input buffer and create an Fts3Expr structure of type FTSQUERY_PHRASE 
-** containing the results.
-**
-** If successful, SQLITE_OK is returned and *ppExpr set to point at the
-** allocated Fts3Expr structure. Otherwise, either SQLITE_NOMEM (out of memory
-** error) or SQLITE_ERROR (tokenization error) is returned and *ppExpr set
-** to 0.
-*/
-static int getNextString(
-  ParseContext *pParse,                   /* fts3 query parse context */
-  const char *zInput, int nInput,         /* Input string */
-  Fts3Expr **ppExpr                       /* OUT: expression */
-){
-  tdsqlite3_tokenizer *pTokenizer = pParse->pTokenizer;
-  tdsqlite3_tokenizer_module const *pModule = pTokenizer->pModule;
-  int rc;
-  Fts3Expr *p = 0;
-  tdsqlite3_tokenizer_cursor *pCursor = 0;
-  char *zTemp = 0;
-  int nTemp = 0;
-
-  const int nSpace = sizeof(Fts3Expr) + sizeof(Fts3Phrase);
-  int nToken = 0;
-
-  /* The final Fts3Expr data structure, including the Fts3Phrase,
-  ** Fts3PhraseToken structures token buffers are all stored as a single 
-  ** allocation so that the expression can be freed with a single call to
-  ** tdsqlite3_free(). Setting this up requires a two pass approach.
-  **
-  ** The first pass, in the block below, uses a tokenizer cursor to iterate
-  ** through the tokens in the expression. This pass uses fts3ReallocOrFree()
-  ** to assemble data in two dynamic buffers:
-  **
-  **   Buffer p: Points to the Fts3Expr structure, followed by the Fts3Phrase
-  **             structure, followed by the array of Fts3PhraseToken 
-  **             structures. This pass only populates the Fts3PhraseToken array.
-  **
-  **   Buffer zTemp: Contains copies of all tokens.
-  **
-  ** The second pass, in the block that begins "if( rc==SQLITE_DONE )" below,
-  ** appends buffer zTemp to buffer p, and fills in the Fts3Expr and Fts3Phrase
-  ** structures.
-  */
-  rc = tdsqlite3Fts3OpenTokenizer(
-      pTokenizer, pParse->iLangid, zInput, nInput, &pCursor);
-  if( rc==SQLITE_OK ){
-    int ii;
-    for(ii=0; rc==SQLITE_OK; ii++){
-      const char *zByte;
-      int nByte = 0, iBegin = 0, iEnd = 0, iPos = 0;
-      rc = pModule->xNext(pCursor, &zByte, &nByte, &iBegin, &iEnd, &iPos);
-      if( rc==SQLITE_OK ){
-        Fts3PhraseToken *pToken;
-
-        p = fts3ReallocOrFree(p, nSpace + ii*sizeof(Fts3PhraseToken));
-        if( !p ) goto no_mem;
-
-        zTemp = fts3ReallocOrFree(zTemp, nTemp + nByte);
-        if( !zTemp ) goto no_mem;
-
-        assert( nToken==ii );
-        pToken = &((Fts3Phrase *)(&p[1]))->aToken[ii];
-        memset(pToken, 0, sizeof(Fts3PhraseToken));
-
-        memcpy(&zTemp[nTemp], zByte, nByte);
-        nTemp += nByte;
-
-        pToken->n = nByte;
-        pToken->isPrefix = (iEnd<nInput && zInput[iEnd]=='*');
-        pToken->bFirst = (iBegin>0 && zInput[iBegin-1]=='^');
-        nToken = ii+1;
-      }
-    }
-
-    pModule->xClose(pCursor);
-    pCursor = 0;
-  }
-
-  if( rc==SQLITE_DONE ){
-    int jj;
-    char *zBuf = 0;
-
-    p = fts3ReallocOrFree(p, nSpace + nToken*sizeof(Fts3PhraseToken) + nTemp);
-    if( !p ) goto no_mem;
-    memset(p, 0, (char *)&(((Fts3Phrase *)&p[1])->aToken[0])-(char *)p);
-    p->eType = FTSQUERY_PHRASE;
-    p->pPhrase = (Fts3Phrase *)&p[1];
-    p->pPhrase->iColumn = pParse->iDefaultCol;
-    p->pPhrase->nToken = nToken;
-
-    zBuf = (char *)&p->pPhrase->aToken[nToken];
-    if( zTemp ){
-      memcpy(zBuf, zTemp, nTemp);
-      tdsqlite3_free(zTemp);
-    }else{
-      assert( nTemp==0 );
-    }
-
-    for(jj=0; jj<p->pPhrase->nToken; jj++){
-      p->pPhrase->aToken[jj].z = zBuf;
-      zBuf += p->pPhrase->aToken[jj].n;
-    }
-    rc = SQLITE_OK;
-  }
-
-  *ppExpr = p;
-  return rc;
-no_mem:
-
-  if( pCursor ){
-    pModule->xClose(pCursor);
-  }
-  tdsqlite3_free(zTemp);
-  tdsqlite3_free(p);
-  *ppExpr = 0;
-  return SQLITE_NOMEM;
-}
-
-/*
-** The output variable *ppExpr is populated with an allocated Fts3Expr 
-** structure, or set to 0 if the end of the input buffer is reached.
-**
-** Returns an SQLite error code. SQLITE_OK if everything works, SQLITE_NOMEM
-** if a malloc failure occurs, or SQLITE_ERROR if a parse error is encountered.
-** If SQLITE_ERROR is returned, pContext is populated with an error message.
-*/
-static int getNextNode(
-  ParseContext *pParse,                   /* fts3 query parse context */
-  const char *z, int n,                   /* Input string */
-  Fts3Expr **ppExpr,                      /* OUT: expression */
-  int *pnConsumed                         /* OUT: Number of bytes consumed */
-){
-  static const struct Fts3Keyword {
-    char *z;                              /* Keyword text */
-    unsigned char n;                      /* Length of the keyword */
-    unsigned char parenOnly;              /* Only valid in paren mode */
-    unsigned char eType;                  /* Keyword code */
-  } aKeyword[] = {
-    { "OR" ,  2, 0, FTSQUERY_OR   },
-    { "AND",  3, 1, FTSQUERY_AND  },
-    { "NOT",  3, 1, FTSQUERY_NOT  },
-    { "NEAR", 4, 0, FTSQUERY_NEAR }
-  };
-  int ii;
-  int iCol;
-  int iColLen;
-  int rc;
-  Fts3Expr *pRet = 0;
-
-  const char *zInput = z;
-  int nInput = n;
-
-  pParse->isNot = 0;
-
-  /* Skip over any whitespace before checking for a keyword, an open or
-  ** close bracket, or a quoted string. 
-  */
-  while( nInput>0 && fts3isspace(*zInput) ){
-    nInput--;
-    zInput++;
-  }
-  if( nInput==0 ){
-    return SQLITE_DONE;
-  }
-
-  /* See if we are dealing with a keyword. */
-  for(ii=0; ii<(int)(sizeof(aKeyword)/sizeof(struct Fts3Keyword)); ii++){
-    const struct Fts3Keyword *pKey = &aKeyword[ii];
-
-    if( (pKey->parenOnly & ~tdsqlite3_fts3_enable_parentheses)!=0 ){
-      continue;
-    }
-
-    if( nInput>=pKey->n && 0==memcmp(zInput, pKey->z, pKey->n) ){
-      int nNear = SQLITE_FTS3_DEFAULT_NEAR_PARAM;
-      int nKey = pKey->n;
-      char cNext;
-
-      /* If this is a "NEAR" keyword, check for an explicit nearness. */
-      if( pKey->eType==FTSQUERY_NEAR ){
-        assert( nKey==4 );
-        if( zInput[4]=='/' && zInput[5]>='0' && zInput[5]<='9' ){
-          nNear = 0;
-          for(nKey=5; zInput[nKey]>='0' && zInput[nKey]<='9'; nKey++){
-            nNear = nNear * 10 + (zInput[nKey] - '0');
-          }
-        }
-      }
-
-      /* At this point this is probably a keyword. But for that to be true,
-      ** the next byte must contain either whitespace, an open or close
-      ** parenthesis, a quote character, or EOF. 
-      */
-      cNext = zInput[nKey];
-      if( fts3isspace(cNext) 
-       || cNext=='"' || cNext=='(' || cNext==')' || cNext==0
-      ){
-        pRet = (Fts3Expr *)fts3MallocZero(sizeof(Fts3Expr));
-        if( !pRet ){
-          return SQLITE_NOMEM;
-        }
-        pRet->eType = pKey->eType;
-        pRet->nNear = nNear;
-        *ppExpr = pRet;
-        *pnConsumed = (int)((zInput - z) + nKey);
-        return SQLITE_OK;
-      }
-
-      /* Turns out that wasn't a keyword after all. This happens if the
-      ** user has supplied a token such as "ORacle". Continue.
-      */
-    }
-  }
-
-  /* See if we are dealing with a quoted phrase. If this is the case, then
-  ** search for the closing quote and pass the whole string to getNextString()
-  ** for processing. This is easy to do, as fts3 has no syntax for escaping
-  ** a quote character embedded in a string.
-  */
-  if( *zInput=='"' ){
-    for(ii=1; ii<nInput && zInput[ii]!='"'; ii++);
-    *pnConsumed = (int)((zInput - z) + ii + 1);
-    if( ii==nInput ){
-      return SQLITE_ERROR;
-    }
-    return getNextString(pParse, &zInput[1], ii-1, ppExpr);
-  }
-
-  if( tdsqlite3_fts3_enable_parentheses ){
-    if( *zInput=='(' ){
-      int nConsumed = 0;
-      pParse->nNest++;
-      rc = fts3ExprParse(pParse, zInput+1, nInput-1, ppExpr, &nConsumed);
-      *pnConsumed = (int)(zInput - z) + 1 + nConsumed;
-      return rc;
-    }else if( *zInput==')' ){
-      pParse->nNest--;
-      *pnConsumed = (int)((zInput - z) + 1);
-      *ppExpr = 0;
-      return SQLITE_DONE;
-    }
-  }
-
-  /* If control flows to this point, this must be a regular token, or 
-  ** the end of the input. Read a regular token using the tdsqlite3_tokenizer
-  ** interface. Before doing so, figure out if there is an explicit
-  ** column specifier for the token. 
-  **
-  ** TODO: Strangely, it is not possible to associate a column specifier
-  ** with a quoted phrase, only with a single token. Not sure if this was
-  ** an implementation artifact or an intentional decision when fts3 was
-  ** first implemented. Whichever it was, this module duplicates the 
-  ** limitation.
-  */
-  iCol = pParse->iDefaultCol;
-  iColLen = 0;
-  for(ii=0; ii<pParse->nCol; ii++){
-    const char *zStr = pParse->azCol[ii];
-    int nStr = (int)strlen(zStr);
-    if( nInput>nStr && zInput[nStr]==':' 
-     && tdsqlite3_strnicmp(zStr, zInput, nStr)==0 
-    ){
-      iCol = ii;
-      iColLen = (int)((zInput - z) + nStr + 1);
-      break;
-    }
-  }
-  rc = getNextToken(pParse, iCol, &z[iColLen], n-iColLen, ppExpr, pnConsumed);
-  *pnConsumed += iColLen;
-  return rc;
-}
-
-/*
-** The argument is an Fts3Expr structure for a binary operator (any type
-** except an FTSQUERY_PHRASE). Return an integer value representing the
-** precedence of the operator. Lower values have a higher precedence (i.e.
-** group more tightly). For example, in the C language, the == operator
-** groups more tightly than ||, and would therefore have a higher precedence.
-**
-** When using the new fts3 query syntax (when SQLITE_ENABLE_FTS3_PARENTHESIS
-** is defined), the order of the operators in precedence from highest to
-** lowest is:
-**
-**   NEAR
-**   NOT
-**   AND (including implicit ANDs)
-**   OR
-**
-** Note that when using the old query syntax, the OR operator has a higher
-** precedence than the AND operator.
-*/
-static int opPrecedence(Fts3Expr *p){
-  assert( p->eType!=FTSQUERY_PHRASE );
-  if( tdsqlite3_fts3_enable_parentheses ){
-    return p->eType;
-  }else if( p->eType==FTSQUERY_NEAR ){
-    return 1;
-  }else if( p->eType==FTSQUERY_OR ){
-    return 2;
-  }
-  assert( p->eType==FTSQUERY_AND );
-  return 3;
-}
-
-/*
-** Argument ppHead contains a pointer to the current head of a query 
-** expression tree being parsed. pPrev is the expression node most recently
-** inserted into the tree. This function adds pNew, which is always a binary
-** operator node, into the expression tree based on the relative precedence
-** of pNew and the existing nodes of the tree. This may result in the head
-** of the tree changing, in which case *ppHead is set to the new root node.
-*/
-static void insertBinaryOperator(
-  Fts3Expr **ppHead,       /* Pointer to the root node of a tree */
-  Fts3Expr *pPrev,         /* Node most recently inserted into the tree */
-  Fts3Expr *pNew           /* New binary node to insert into expression tree */
-){
-  Fts3Expr *pSplit = pPrev;
-  while( pSplit->pParent && opPrecedence(pSplit->pParent)<=opPrecedence(pNew) ){
-    pSplit = pSplit->pParent;
-  }
-
-  if( pSplit->pParent ){
-    assert( pSplit->pParent->pRight==pSplit );
-    pSplit->pParent->pRight = pNew;
-    pNew->pParent = pSplit->pParent;
-  }else{
-    *ppHead = pNew;
-  }
-  pNew->pLeft = pSplit;
-  pSplit->pParent = pNew;
-}
-
-/*
-** Parse the fts3 query expression found in buffer z, length n. This function
-** returns either when the end of the buffer is reached or an unmatched 
-** closing bracket - ')' - is encountered.
-**
-** If successful, SQLITE_OK is returned, *ppExpr is set to point to the
-** parsed form of the expression and *pnConsumed is set to the number of
-** bytes read from buffer z. Otherwise, *ppExpr is set to 0 and SQLITE_NOMEM
-** (out of memory error) or SQLITE_ERROR (parse error) is returned.
-*/
-static int fts3ExprParse(
-  ParseContext *pParse,                   /* fts3 query parse context */
-  const char *z, int n,                   /* Text of MATCH query */
-  Fts3Expr **ppExpr,                      /* OUT: Parsed query structure */
-  int *pnConsumed                         /* OUT: Number of bytes consumed */
-){
-  Fts3Expr *pRet = 0;
-  Fts3Expr *pPrev = 0;
-  Fts3Expr *pNotBranch = 0;               /* Only used in legacy parse mode */
-  int nIn = n;
-  const char *zIn = z;
-  int rc = SQLITE_OK;
-  int isRequirePhrase = 1;
-
-  while( rc==SQLITE_OK ){
-    Fts3Expr *p = 0;
-    int nByte = 0;
-
-    rc = getNextNode(pParse, zIn, nIn, &p, &nByte);
-    assert( nByte>0 || (rc!=SQLITE_OK && p==0) );
-    if( rc==SQLITE_OK ){
-      if( p ){
-        int isPhrase;
-
-        if( !tdsqlite3_fts3_enable_parentheses 
-            && p->eType==FTSQUERY_PHRASE && pParse->isNot 
-        ){
-          /* Create an implicit NOT operator. */
-          Fts3Expr *pNot = fts3MallocZero(sizeof(Fts3Expr));
-          if( !pNot ){
-            tdsqlite3Fts3ExprFree(p);
-            rc = SQLITE_NOMEM;
-            goto exprparse_out;
-          }
-          pNot->eType = FTSQUERY_NOT;
-          pNot->pRight = p;
-          p->pParent = pNot;
-          if( pNotBranch ){
-            pNot->pLeft = pNotBranch;
-            pNotBranch->pParent = pNot;
-          }
-          pNotBranch = pNot;
-          p = pPrev;
-        }else{
-          int eType = p->eType;
-          isPhrase = (eType==FTSQUERY_PHRASE || p->pLeft);
-
-          /* The isRequirePhrase variable is set to true if a phrase or
-          ** an expression contained in parenthesis is required. If a
-          ** binary operator (AND, OR, NOT or NEAR) is encounted when
-          ** isRequirePhrase is set, this is a syntax error.
-          */
-          if( !isPhrase && isRequirePhrase ){
-            tdsqlite3Fts3ExprFree(p);
-            rc = SQLITE_ERROR;
-            goto exprparse_out;
-          }
-
-          if( isPhrase && !isRequirePhrase ){
-            /* Insert an implicit AND operator. */
-            Fts3Expr *pAnd;
-            assert( pRet && pPrev );
-            pAnd = fts3MallocZero(sizeof(Fts3Expr));
-            if( !pAnd ){
-              tdsqlite3Fts3ExprFree(p);
-              rc = SQLITE_NOMEM;
-              goto exprparse_out;
-            }
-            pAnd->eType = FTSQUERY_AND;
-            insertBinaryOperator(&pRet, pPrev, pAnd);
-            pPrev = pAnd;
-          }
-
-          /* This test catches attempts to make either operand of a NEAR
-           ** operator something other than a phrase. For example, either of
-           ** the following:
-           **
-           **    (bracketed expression) NEAR phrase
-           **    phrase NEAR (bracketed expression)
-           **
-           ** Return an error in either case.
-           */
-          if( pPrev && (
-            (eType==FTSQUERY_NEAR && !isPhrase && pPrev->eType!=FTSQUERY_PHRASE)
-         || (eType!=FTSQUERY_PHRASE && isPhrase && pPrev->eType==FTSQUERY_NEAR)
-          )){
-            tdsqlite3Fts3ExprFree(p);
-            rc = SQLITE_ERROR;
-            goto exprparse_out;
-          }
-
-          if( isPhrase ){
-            if( pRet ){
-              assert( pPrev && pPrev->pLeft && pPrev->pRight==0 );
-              pPrev->pRight = p;
-              p->pParent = pPrev;
-            }else{
-              pRet = p;
-            }
-          }else{
-            insertBinaryOperator(&pRet, pPrev, p);
-          }
-          isRequirePhrase = !isPhrase;
-        }
-        pPrev = p;
-      }
-      assert( nByte>0 );
-    }
-    assert( rc!=SQLITE_OK || (nByte>0 && nByte<=nIn) );
-    nIn -= nByte;
-    zIn += nByte;
-  }
-
-  if( rc==SQLITE_DONE && pRet && isRequirePhrase ){
-    rc = SQLITE_ERROR;
-  }
-
-  if( rc==SQLITE_DONE ){
-    rc = SQLITE_OK;
-    if( !tdsqlite3_fts3_enable_parentheses && pNotBranch ){
-      if( !pRet ){
-        rc = SQLITE_ERROR;
-      }else{
-        Fts3Expr *pIter = pNotBranch;
-        while( pIter->pLeft ){
-          pIter = pIter->pLeft;
-        }
-        pIter->pLeft = pRet;
-        pRet->pParent = pIter;
-        pRet = pNotBranch;
-      }
-    }
-  }
-  *pnConsumed = n - nIn;
-
-exprparse_out:
-  if( rc!=SQLITE_OK ){
-    tdsqlite3Fts3ExprFree(pRet);
-    tdsqlite3Fts3ExprFree(pNotBranch);
-    pRet = 0;
-  }
-  *ppExpr = pRet;
-  return rc;
-}
-
-/*
-** Return SQLITE_ERROR if the maximum depth of the expression tree passed 
-** as the only argument is more than nMaxDepth.
-*/
-static int fts3ExprCheckDepth(Fts3Expr *p, int nMaxDepth){
-  int rc = SQLITE_OK;
-  if( p ){
-    if( nMaxDepth<0 ){ 
-      rc = SQLITE_TOOBIG;
-    }else{
-      rc = fts3ExprCheckDepth(p->pLeft, nMaxDepth-1);
-      if( rc==SQLITE_OK ){
-        rc = fts3ExprCheckDepth(p->pRight, nMaxDepth-1);
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** This function attempts to transform the expression tree at (*pp) to
-** an equivalent but more balanced form. The tree is modified in place.
-** If successful, SQLITE_OK is returned and (*pp) set to point to the 
-** new root expression node. 
-**
-** nMaxDepth is the maximum allowable depth of the balanced sub-tree.
-**
-** Otherwise, if an error occurs, an SQLite error code is returned and 
-** expression (*pp) freed.
-*/
-static int fts3ExprBalance(Fts3Expr **pp, int nMaxDepth){
-  int rc = SQLITE_OK;             /* Return code */
-  Fts3Expr *pRoot = *pp;          /* Initial root node */
-  Fts3Expr *pFree = 0;            /* List of free nodes. Linked by pParent. */
-  int eType = pRoot->eType;       /* Type of node in this tree */
-
-  if( nMaxDepth==0 ){
-    rc = SQLITE_ERROR;
-  }
-
-  if( rc==SQLITE_OK ){
-    if( (eType==FTSQUERY_AND || eType==FTSQUERY_OR) ){
-      Fts3Expr **apLeaf;
-      apLeaf = (Fts3Expr **)tdsqlite3_malloc64(sizeof(Fts3Expr *) * nMaxDepth);
-      if( 0==apLeaf ){
-        rc = SQLITE_NOMEM;
-      }else{
-        memset(apLeaf, 0, sizeof(Fts3Expr *) * nMaxDepth);
-      }
-
-      if( rc==SQLITE_OK ){
-        int i;
-        Fts3Expr *p;
-
-        /* Set $p to point to the left-most leaf in the tree of eType nodes. */
-        for(p=pRoot; p->eType==eType; p=p->pLeft){
-          assert( p->pParent==0 || p->pParent->pLeft==p );
-          assert( p->pLeft && p->pRight );
-        }
-
-        /* This loop runs once for each leaf in the tree of eType nodes. */
-        while( 1 ){
-          int iLvl;
-          Fts3Expr *pParent = p->pParent;     /* Current parent of p */
-
-          assert( pParent==0 || pParent->pLeft==p );
-          p->pParent = 0;
-          if( pParent ){
-            pParent->pLeft = 0;
-          }else{
-            pRoot = 0;
-          }
-          rc = fts3ExprBalance(&p, nMaxDepth-1);
-          if( rc!=SQLITE_OK ) break;
-
-          for(iLvl=0; p && iLvl<nMaxDepth; iLvl++){
-            if( apLeaf[iLvl]==0 ){
-              apLeaf[iLvl] = p;
-              p = 0;
-            }else{
-              assert( pFree );
-              pFree->pLeft = apLeaf[iLvl];
-              pFree->pRight = p;
-              pFree->pLeft->pParent = pFree;
-              pFree->pRight->pParent = pFree;
-
-              p = pFree;
-              pFree = pFree->pParent;
-              p->pParent = 0;
-              apLeaf[iLvl] = 0;
-            }
-          }
-          if( p ){
-            tdsqlite3Fts3ExprFree(p);
-            rc = SQLITE_TOOBIG;
-            break;
-          }
-
-          /* If that was the last leaf node, break out of the loop */
-          if( pParent==0 ) break;
-
-          /* Set $p to point to the next leaf in the tree of eType nodes */
-          for(p=pParent->pRight; p->eType==eType; p=p->pLeft);
-
-          /* Remove pParent from the original tree. */
-          assert( pParent->pParent==0 || pParent->pParent->pLeft==pParent );
-          pParent->pRight->pParent = pParent->pParent;
-          if( pParent->pParent ){
-            pParent->pParent->pLeft = pParent->pRight;
-          }else{
-            assert( pParent==pRoot );
-            pRoot = pParent->pRight;
-          }
-
-          /* Link pParent into the free node list. It will be used as an
-          ** internal node of the new tree.  */
-          pParent->pParent = pFree;
-          pFree = pParent;
-        }
-
-        if( rc==SQLITE_OK ){
-          p = 0;
-          for(i=0; i<nMaxDepth; i++){
-            if( apLeaf[i] ){
-              if( p==0 ){
-                p = apLeaf[i];
-                p->pParent = 0;
-              }else{
-                assert( pFree!=0 );
-                pFree->pRight = p;
-                pFree->pLeft = apLeaf[i];
-                pFree->pLeft->pParent = pFree;
-                pFree->pRight->pParent = pFree;
-
-                p = pFree;
-                pFree = pFree->pParent;
-                p->pParent = 0;
-              }
-            }
-          }
-          pRoot = p;
-        }else{
-          /* An error occurred. Delete the contents of the apLeaf[] array 
-          ** and pFree list. Everything else is cleaned up by the call to
-          ** tdsqlite3Fts3ExprFree(pRoot) below.  */
-          Fts3Expr *pDel;
-          for(i=0; i<nMaxDepth; i++){
-            tdsqlite3Fts3ExprFree(apLeaf[i]);
-          }
-          while( (pDel=pFree)!=0 ){
-            pFree = pDel->pParent;
-            tdsqlite3_free(pDel);
-          }
-        }
-
-        assert( pFree==0 );
-        tdsqlite3_free( apLeaf );
-      }
-    }else if( eType==FTSQUERY_NOT ){
-      Fts3Expr *pLeft = pRoot->pLeft;
-      Fts3Expr *pRight = pRoot->pRight;
-
-      pRoot->pLeft = 0;
-      pRoot->pRight = 0;
-      pLeft->pParent = 0;
-      pRight->pParent = 0;
-
-      rc = fts3ExprBalance(&pLeft, nMaxDepth-1);
-      if( rc==SQLITE_OK ){
-        rc = fts3ExprBalance(&pRight, nMaxDepth-1);
-      }
-
-      if( rc!=SQLITE_OK ){
-        tdsqlite3Fts3ExprFree(pRight);
-        tdsqlite3Fts3ExprFree(pLeft);
-      }else{
-        assert( pLeft && pRight );
-        pRoot->pLeft = pLeft;
-        pLeft->pParent = pRoot;
-        pRoot->pRight = pRight;
-        pRight->pParent = pRoot;
-      }
-    }
-  }
-  
-  if( rc!=SQLITE_OK ){
-    tdsqlite3Fts3ExprFree(pRoot);
-    pRoot = 0;
-  }
-  *pp = pRoot;
-  return rc;
-}
-
-/*
-** This function is similar to tdsqlite3Fts3ExprParse(), with the following
-** differences:
-**
-**   1. It does not do expression rebalancing.
-**   2. It does not check that the expression does not exceed the 
-**      maximum allowable depth.
-**   3. Even if it fails, *ppExpr may still be set to point to an 
-**      expression tree. It should be deleted using tdsqlite3Fts3ExprFree()
-**      in this case.
-*/
-static int fts3ExprParseUnbalanced(
-  tdsqlite3_tokenizer *pTokenizer,      /* Tokenizer module */
-  int iLangid,                        /* Language id for tokenizer */
-  char **azCol,                       /* Array of column names for fts3 table */
-  int bFts4,                          /* True to allow FTS4-only syntax */
-  int nCol,                           /* Number of entries in azCol[] */
-  int iDefaultCol,                    /* Default column to query */
-  const char *z, int n,               /* Text of MATCH query */
-  Fts3Expr **ppExpr                   /* OUT: Parsed query structure */
-){
-  int nParsed;
-  int rc;
-  ParseContext sParse;
-
-  memset(&sParse, 0, sizeof(ParseContext));
-  sParse.pTokenizer = pTokenizer;
-  sParse.iLangid = iLangid;
-  sParse.azCol = (const char **)azCol;
-  sParse.nCol = nCol;
-  sParse.iDefaultCol = iDefaultCol;
-  sParse.bFts4 = bFts4;
-  if( z==0 ){
-    *ppExpr = 0;
-    return SQLITE_OK;
-  }
-  if( n<0 ){
-    n = (int)strlen(z);
-  }
-  rc = fts3ExprParse(&sParse, z, n, ppExpr, &nParsed);
-  assert( rc==SQLITE_OK || *ppExpr==0 );
-
-  /* Check for mismatched parenthesis */
-  if( rc==SQLITE_OK && sParse.nNest ){
-    rc = SQLITE_ERROR;
-  }
-  
-  return rc;
-}
-
-/*
-** Parameters z and n contain a pointer to and length of a buffer containing
-** an fts3 query expression, respectively. This function attempts to parse the
-** query expression and create a tree of Fts3Expr structures representing the
-** parsed expression. If successful, *ppExpr is set to point to the head
-** of the parsed expression tree and SQLITE_OK is returned. If an error
-** occurs, either SQLITE_NOMEM (out-of-memory error) or SQLITE_ERROR (parse
-** error) is returned and *ppExpr is set to 0.
-**
-** If parameter n is a negative number, then z is assumed to point to a
-** nul-terminated string and the length is determined using strlen().
-**
-** The first parameter, pTokenizer, is passed the fts3 tokenizer module to
-** use to normalize query tokens while parsing the expression. The azCol[]
-** array, which is assumed to contain nCol entries, should contain the names
-** of each column in the target fts3 table, in order from left to right. 
-** Column names must be nul-terminated strings.
-**
-** The iDefaultCol parameter should be passed the index of the table column
-** that appears on the left-hand-side of the MATCH operator (the default
-** column to match against for tokens for which a column name is not explicitly
-** specified as part of the query string), or -1 if tokens may by default
-** match any table column.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3ExprParse(
-  tdsqlite3_tokenizer *pTokenizer,      /* Tokenizer module */
-  int iLangid,                        /* Language id for tokenizer */
-  char **azCol,                       /* Array of column names for fts3 table */
-  int bFts4,                          /* True to allow FTS4-only syntax */
-  int nCol,                           /* Number of entries in azCol[] */
-  int iDefaultCol,                    /* Default column to query */
-  const char *z, int n,               /* Text of MATCH query */
-  Fts3Expr **ppExpr,                  /* OUT: Parsed query structure */
-  char **pzErr                        /* OUT: Error message (tdsqlite3_malloc) */
-){
-  int rc = fts3ExprParseUnbalanced(
-      pTokenizer, iLangid, azCol, bFts4, nCol, iDefaultCol, z, n, ppExpr
-  );
-  
-  /* Rebalance the expression. And check that its depth does not exceed
-  ** SQLITE_FTS3_MAX_EXPR_DEPTH.  */
-  if( rc==SQLITE_OK && *ppExpr ){
-    rc = fts3ExprBalance(ppExpr, SQLITE_FTS3_MAX_EXPR_DEPTH);
-    if( rc==SQLITE_OK ){
-      rc = fts3ExprCheckDepth(*ppExpr, SQLITE_FTS3_MAX_EXPR_DEPTH);
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3Fts3ExprFree(*ppExpr);
-    *ppExpr = 0;
-    if( rc==SQLITE_TOOBIG ){
-      tdsqlite3Fts3ErrMsg(pzErr,
-          "FTS expression tree is too large (maximum depth %d)", 
-          SQLITE_FTS3_MAX_EXPR_DEPTH
-      );
-      rc = SQLITE_ERROR;
-    }else if( rc==SQLITE_ERROR ){
-      tdsqlite3Fts3ErrMsg(pzErr, "malformed MATCH expression: [%s]", z);
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Free a single node of an expression tree.
-*/
-static void fts3FreeExprNode(Fts3Expr *p){
-  assert( p->eType==FTSQUERY_PHRASE || p->pPhrase==0 );
-  tdsqlite3Fts3EvalPhraseCleanup(p->pPhrase);
-  tdsqlite3_free(p->aMI);
-  tdsqlite3_free(p);
-}
-
-/*
-** Free a parsed fts3 query expression allocated by tdsqlite3Fts3ExprParse().
-**
-** This function would be simpler if it recursively called itself. But
-** that would mean passing a sufficiently large expression to ExprParse()
-** could cause a stack overflow.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3ExprFree(Fts3Expr *pDel){
-  Fts3Expr *p;
-  assert( pDel==0 || pDel->pParent==0 );
-  for(p=pDel; p && (p->pLeft||p->pRight); p=(p->pLeft ? p->pLeft : p->pRight)){
-    assert( p->pParent==0 || p==p->pParent->pRight || p==p->pParent->pLeft );
-  }
-  while( p ){
-    Fts3Expr *pParent = p->pParent;
-    fts3FreeExprNode(p);
-    if( pParent && p==pParent->pLeft && pParent->pRight ){
-      p = pParent->pRight;
-      while( p && (p->pLeft || p->pRight) ){
-        assert( p==p->pParent->pRight || p==p->pParent->pLeft );
-        p = (p->pLeft ? p->pLeft : p->pRight);
-      }
-    }else{
-      p = pParent;
-    }
-  }
-}
-
-/****************************************************************************
-*****************************************************************************
-** Everything after this point is just test code.
-*/
-
-#ifdef SQLITE_TEST
-
-/* #include <stdio.h> */
-
-/*
-** Return a pointer to a buffer containing a text representation of the
-** expression passed as the first argument. The buffer is obtained from
-** tdsqlite3_malloc(). It is the responsibility of the caller to use 
-** tdsqlite3_free() to release the memory. If an OOM condition is encountered,
-** NULL is returned.
-**
-** If the second argument is not NULL, then its contents are prepended to 
-** the returned expression text and then freed using tdsqlite3_free().
-*/
-static char *exprToString(Fts3Expr *pExpr, char *zBuf){
-  if( pExpr==0 ){
-    return tdsqlite3_mprintf("");
-  }
-  switch( pExpr->eType ){
-    case FTSQUERY_PHRASE: {
-      Fts3Phrase *pPhrase = pExpr->pPhrase;
-      int i;
-      zBuf = tdsqlite3_mprintf(
-          "%zPHRASE %d 0", zBuf, pPhrase->iColumn);
-      for(i=0; zBuf && i<pPhrase->nToken; i++){
-        zBuf = tdsqlite3_mprintf("%z %.*s%s", zBuf, 
-            pPhrase->aToken[i].n, pPhrase->aToken[i].z,
-            (pPhrase->aToken[i].isPrefix?"+":"")
-        );
-      }
-      return zBuf;
-    }
-
-    case FTSQUERY_NEAR:
-      zBuf = tdsqlite3_mprintf("%zNEAR/%d ", zBuf, pExpr->nNear);
-      break;
-    case FTSQUERY_NOT:
-      zBuf = tdsqlite3_mprintf("%zNOT ", zBuf);
-      break;
-    case FTSQUERY_AND:
-      zBuf = tdsqlite3_mprintf("%zAND ", zBuf);
-      break;
-    case FTSQUERY_OR:
-      zBuf = tdsqlite3_mprintf("%zOR ", zBuf);
-      break;
-  }
-
-  if( zBuf ) zBuf = tdsqlite3_mprintf("%z{", zBuf);
-  if( zBuf ) zBuf = exprToString(pExpr->pLeft, zBuf);
-  if( zBuf ) zBuf = tdsqlite3_mprintf("%z} {", zBuf);
-
-  if( zBuf ) zBuf = exprToString(pExpr->pRight, zBuf);
-  if( zBuf ) zBuf = tdsqlite3_mprintf("%z}", zBuf);
-
-  return zBuf;
-}
-
-/*
-** This is the implementation of a scalar SQL function used to test the 
-** expression parser. It should be called as follows:
-**
-**   fts3_exprtest(<tokenizer>, <expr>, <column 1>, ...);
-**
-** The first argument, <tokenizer>, is the name of the fts3 tokenizer used
-** to parse the query expression (see README.tokenizers). The second argument
-** is the query expression to parse. Each subsequent argument is the name
-** of a column of the fts3 table that the query expression may refer to.
-** For example:
-**
-**   SELECT fts3_exprtest('simple', 'Bill col2:Bloggs', 'col1', 'col2');
-*/
-static void fts3ExprTestCommon(
-  int bRebalance,
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  tdsqlite3_tokenizer *pTokenizer = 0;
-  int rc;
-  char **azCol = 0;
-  const char *zExpr;
-  int nExpr;
-  int nCol;
-  int ii;
-  Fts3Expr *pExpr;
-  char *zBuf = 0;
-  Fts3Hash *pHash = (Fts3Hash*)tdsqlite3_user_data(context);
-  const char *zTokenizer = 0;
-  char *zErr = 0;
-
-  if( argc<3 ){
-    tdsqlite3_result_error(context, 
-        "Usage: fts3_exprtest(tokenizer, expr, col1, ...", -1
-    );
-    return;
-  }
-
-  zTokenizer = (const char*)tdsqlite3_value_text(argv[0]);
-  rc = tdsqlite3Fts3InitTokenizer(pHash, zTokenizer, &pTokenizer, &zErr);
-  if( rc!=SQLITE_OK ){
-    if( rc==SQLITE_NOMEM ){
-      tdsqlite3_result_error_nomem(context);
-    }else{
-      tdsqlite3_result_error(context, zErr, -1);
-    }
-    tdsqlite3_free(zErr);
-    return;
-  }
-
-  zExpr = (const char *)tdsqlite3_value_text(argv[1]);
-  nExpr = tdsqlite3_value_bytes(argv[1]);
-  nCol = argc-2;
-  azCol = (char **)tdsqlite3_malloc64(nCol*sizeof(char *));
-  if( !azCol ){
-    tdsqlite3_result_error_nomem(context);
-    goto exprtest_out;
-  }
-  for(ii=0; ii<nCol; ii++){
-    azCol[ii] = (char *)tdsqlite3_value_text(argv[ii+2]);
-  }
-
-  if( bRebalance ){
-    char *zDummy = 0;
-    rc = tdsqlite3Fts3ExprParse(
-        pTokenizer, 0, azCol, 0, nCol, nCol, zExpr, nExpr, &pExpr, &zDummy
-    );
-    assert( rc==SQLITE_OK || pExpr==0 );
-    tdsqlite3_free(zDummy);
-  }else{
-    rc = fts3ExprParseUnbalanced(
-        pTokenizer, 0, azCol, 0, nCol, nCol, zExpr, nExpr, &pExpr
-    );
-  }
-
-  if( rc!=SQLITE_OK && rc!=SQLITE_NOMEM ){
-    tdsqlite3Fts3ExprFree(pExpr);
-    tdsqlite3_result_error(context, "Error parsing expression", -1);
-  }else if( rc==SQLITE_NOMEM || !(zBuf = exprToString(pExpr, 0)) ){
-    tdsqlite3_result_error_nomem(context);
-  }else{
-    tdsqlite3_result_text(context, zBuf, -1, SQLITE_TRANSIENT);
-    tdsqlite3_free(zBuf);
-  }
-
-  tdsqlite3Fts3ExprFree(pExpr);
-
-exprtest_out:
-  if( pTokenizer ){
-    rc = pTokenizer->pModule->xDestroy(pTokenizer);
-  }
-  tdsqlite3_free(azCol);
-}
-
-static void fts3ExprTest(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  fts3ExprTestCommon(0, context, argc, argv);
-}
-static void fts3ExprTestRebalance(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  fts3ExprTestCommon(1, context, argc, argv);
-}
-
-/*
-** Register the query expression parser test function fts3_exprtest() 
-** with database connection db. 
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3ExprInitTestInterface(tdsqlite3 *db, Fts3Hash *pHash){
-  int rc = tdsqlite3_create_function(
-      db, "fts3_exprtest", -1, SQLITE_UTF8, (void*)pHash, fts3ExprTest, 0, 0
-  );
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_create_function(db, "fts3_exprtest_rebalance", 
-        -1, SQLITE_UTF8, (void*)pHash, fts3ExprTestRebalance, 0, 0
-    );
-  }
-  return rc;
-}
-
-#endif
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-
-/************** End of fts3_expr.c *******************************************/
-/************** Begin file fts3_hash.c ***************************************/
-/*
-** 2001 September 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This is the implementation of generic hash-tables used in SQLite.
-** We've modified it slightly to serve as a standalone hash table
-** implementation for the full-text indexing module.
-*/
-
-/*
-** The code in this file is only compiled if:
-**
-**     * The FTS3 module is being built as an extension
-**       (in which case SQLITE_CORE is not defined), or
-**
-**     * The FTS3 module is being built into the core of
-**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
-*/
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <assert.h> */
-/* #include <stdlib.h> */
-/* #include <string.h> */
-
-/* #include "fts3_hash.h" */
-
-/*
-** Malloc and Free functions
-*/
-static void *fts3HashMalloc(tdsqlite3_int64 n){
-  void *p = tdsqlite3_malloc64(n);
-  if( p ){
-    memset(p, 0, n);
-  }
-  return p;
-}
-static void fts3HashFree(void *p){
-  tdsqlite3_free(p);
-}
-
-/* Turn bulk memory into a hash table object by initializing the
-** fields of the Hash structure.
-**
-** "pNew" is a pointer to the hash table that is to be initialized.
-** keyClass is one of the constants 
-** FTS3_HASH_BINARY or FTS3_HASH_STRING.  The value of keyClass 
-** determines what kind of key the hash table will use.  "copyKey" is
-** true if the hash table should make its own private copy of keys and
-** false if it should just use the supplied pointer.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3HashInit(Fts3Hash *pNew, char keyClass, char copyKey){
-  assert( pNew!=0 );
-  assert( keyClass>=FTS3_HASH_STRING && keyClass<=FTS3_HASH_BINARY );
-  pNew->keyClass = keyClass;
-  pNew->copyKey = copyKey;
-  pNew->first = 0;
-  pNew->count = 0;
-  pNew->htsize = 0;
-  pNew->ht = 0;
-}
-
-/* Remove all entries from a hash table.  Reclaim all memory.
-** Call this routine to delete a hash table or to reset a hash table
-** to the empty state.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3HashClear(Fts3Hash *pH){
-  Fts3HashElem *elem;         /* For looping over all elements of the table */
-
-  assert( pH!=0 );
-  elem = pH->first;
-  pH->first = 0;
-  fts3HashFree(pH->ht);
-  pH->ht = 0;
-  pH->htsize = 0;
-  while( elem ){
-    Fts3HashElem *next_elem = elem->next;
-    if( pH->copyKey && elem->pKey ){
-      fts3HashFree(elem->pKey);
-    }
-    fts3HashFree(elem);
-    elem = next_elem;
-  }
-  pH->count = 0;
-}
-
-/*
-** Hash and comparison functions when the mode is FTS3_HASH_STRING
-*/
-static int fts3StrHash(const void *pKey, int nKey){
-  const char *z = (const char *)pKey;
-  unsigned h = 0;
-  if( nKey<=0 ) nKey = (int) strlen(z);
-  while( nKey > 0  ){
-    h = (h<<3) ^ h ^ *z++;
-    nKey--;
-  }
-  return (int)(h & 0x7fffffff);
-}
-static int fts3StrCompare(const void *pKey1, int n1, const void *pKey2, int n2){
-  if( n1!=n2 ) return 1;
-  return strncmp((const char*)pKey1,(const char*)pKey2,n1);
-}
-
-/*
-** Hash and comparison functions when the mode is FTS3_HASH_BINARY
-*/
-static int fts3BinHash(const void *pKey, int nKey){
-  int h = 0;
-  const char *z = (const char *)pKey;
-  while( nKey-- > 0 ){
-    h = (h<<3) ^ h ^ *(z++);
-  }
-  return h & 0x7fffffff;
-}
-static int fts3BinCompare(const void *pKey1, int n1, const void *pKey2, int n2){
-  if( n1!=n2 ) return 1;
-  return memcmp(pKey1,pKey2,n1);
-}
-
-/*
-** Return a pointer to the appropriate hash function given the key class.
-**
-** The C syntax in this function definition may be unfamilar to some 
-** programmers, so we provide the following additional explanation:
-**
-** The name of the function is "ftsHashFunction".  The function takes a
-** single parameter "keyClass".  The return value of ftsHashFunction()
-** is a pointer to another function.  Specifically, the return value
-** of ftsHashFunction() is a pointer to a function that takes two parameters
-** with types "const void*" and "int" and returns an "int".
-*/
-static int (*ftsHashFunction(int keyClass))(const void*,int){
-  if( keyClass==FTS3_HASH_STRING ){
-    return &fts3StrHash;
-  }else{
-    assert( keyClass==FTS3_HASH_BINARY );
-    return &fts3BinHash;
-  }
-}
-
-/*
-** Return a pointer to the appropriate hash function given the key class.
-**
-** For help in interpreted the obscure C code in the function definition,
-** see the header comment on the previous function.
-*/
-static int (*ftsCompareFunction(int keyClass))(const void*,int,const void*,int){
-  if( keyClass==FTS3_HASH_STRING ){
-    return &fts3StrCompare;
-  }else{
-    assert( keyClass==FTS3_HASH_BINARY );
-    return &fts3BinCompare;
-  }
-}
-
-/* Link an element into the hash table
-*/
-static void fts3HashInsertElement(
-  Fts3Hash *pH,            /* The complete hash table */
-  struct _fts3ht *pEntry,  /* The entry into which pNew is inserted */
-  Fts3HashElem *pNew       /* The element to be inserted */
-){
-  Fts3HashElem *pHead;     /* First element already in pEntry */
-  pHead = pEntry->chain;
-  if( pHead ){
-    pNew->next = pHead;
-    pNew->prev = pHead->prev;
-    if( pHead->prev ){ pHead->prev->next = pNew; }
-    else             { pH->first = pNew; }
-    pHead->prev = pNew;
-  }else{
-    pNew->next = pH->first;
-    if( pH->first ){ pH->first->prev = pNew; }
-    pNew->prev = 0;
-    pH->first = pNew;
-  }
-  pEntry->count++;
-  pEntry->chain = pNew;
-}
-
-
-/* Resize the hash table so that it cantains "new_size" buckets.
-** "new_size" must be a power of 2.  The hash table might fail 
-** to resize if sqliteMalloc() fails.
-**
-** Return non-zero if a memory allocation error occurs.
-*/
-static int fts3Rehash(Fts3Hash *pH, int new_size){
-  struct _fts3ht *new_ht;          /* The new hash table */
-  Fts3HashElem *elem, *next_elem;  /* For looping over existing elements */
-  int (*xHash)(const void*,int);   /* The hash function */
-
-  assert( (new_size & (new_size-1))==0 );
-  new_ht = (struct _fts3ht *)fts3HashMalloc( new_size*sizeof(struct _fts3ht) );
-  if( new_ht==0 ) return 1;
-  fts3HashFree(pH->ht);
-  pH->ht = new_ht;
-  pH->htsize = new_size;
-  xHash = ftsHashFunction(pH->keyClass);
-  for(elem=pH->first, pH->first=0; elem; elem = next_elem){
-    int h = (*xHash)(elem->pKey, elem->nKey) & (new_size-1);
-    next_elem = elem->next;
-    fts3HashInsertElement(pH, &new_ht[h], elem);
-  }
-  return 0;
-}
-
-/* This function (for internal use only) locates an element in an
-** hash table that matches the given key.  The hash for this key has
-** already been computed and is passed as the 4th parameter.
-*/
-static Fts3HashElem *fts3FindElementByHash(
-  const Fts3Hash *pH, /* The pH to be searched */
-  const void *pKey,   /* The key we are searching for */
-  int nKey,
-  int h               /* The hash for this key. */
-){
-  Fts3HashElem *elem;            /* Used to loop thru the element list */
-  int count;                     /* Number of elements left to test */
-  int (*xCompare)(const void*,int,const void*,int);  /* comparison function */
-
-  if( pH->ht ){
-    struct _fts3ht *pEntry = &pH->ht[h];
-    elem = pEntry->chain;
-    count = pEntry->count;
-    xCompare = ftsCompareFunction(pH->keyClass);
-    while( count-- && elem ){
-      if( (*xCompare)(elem->pKey,elem->nKey,pKey,nKey)==0 ){ 
-        return elem;
-      }
-      elem = elem->next;
-    }
-  }
-  return 0;
-}
-
-/* Remove a single entry from the hash table given a pointer to that
-** element and a hash on the element's key.
-*/
-static void fts3RemoveElementByHash(
-  Fts3Hash *pH,         /* The pH containing "elem" */
-  Fts3HashElem* elem,   /* The element to be removed from the pH */
-  int h                 /* Hash value for the element */
-){
-  struct _fts3ht *pEntry;
-  if( elem->prev ){
-    elem->prev->next = elem->next; 
-  }else{
-    pH->first = elem->next;
-  }
-  if( elem->next ){
-    elem->next->prev = elem->prev;
-  }
-  pEntry = &pH->ht[h];
-  if( pEntry->chain==elem ){
-    pEntry->chain = elem->next;
-  }
-  pEntry->count--;
-  if( pEntry->count<=0 ){
-    pEntry->chain = 0;
-  }
-  if( pH->copyKey && elem->pKey ){
-    fts3HashFree(elem->pKey);
-  }
-  fts3HashFree( elem );
-  pH->count--;
-  if( pH->count<=0 ){
-    assert( pH->first==0 );
-    assert( pH->count==0 );
-    fts3HashClear(pH);
-  }
-}
-
-SQLITE_PRIVATE Fts3HashElem *tdsqlite3Fts3HashFindElem(
-  const Fts3Hash *pH, 
-  const void *pKey, 
-  int nKey
-){
-  int h;                          /* A hash on key */
-  int (*xHash)(const void*,int);  /* The hash function */
-
-  if( pH==0 || pH->ht==0 ) return 0;
-  xHash = ftsHashFunction(pH->keyClass);
-  assert( xHash!=0 );
-  h = (*xHash)(pKey,nKey);
-  assert( (pH->htsize & (pH->htsize-1))==0 );
-  return fts3FindElementByHash(pH,pKey,nKey, h & (pH->htsize-1));
-}
-
-/* 
-** Attempt to locate an element of the hash table pH with a key
-** that matches pKey,nKey.  Return the data for this element if it is
-** found, or NULL if there is no match.
-*/
-SQLITE_PRIVATE void *tdsqlite3Fts3HashFind(const Fts3Hash *pH, const void *pKey, int nKey){
-  Fts3HashElem *pElem;            /* The element that matches key (if any) */
-
-  pElem = tdsqlite3Fts3HashFindElem(pH, pKey, nKey);
-  return pElem ? pElem->data : 0;
-}
-
-/* Insert an element into the hash table pH.  The key is pKey,nKey
-** and the data is "data".
-**
-** If no element exists with a matching key, then a new
-** element is created.  A copy of the key is made if the copyKey
-** flag is set.  NULL is returned.
-**
-** If another element already exists with the same key, then the
-** new data replaces the old data and the old data is returned.
-** The key is not copied in this instance.  If a malloc fails, then
-** the new data is returned and the hash table is unchanged.
-**
-** If the "data" parameter to this function is NULL, then the
-** element corresponding to "key" is removed from the hash table.
-*/
-SQLITE_PRIVATE void *tdsqlite3Fts3HashInsert(
-  Fts3Hash *pH,        /* The hash table to insert into */
-  const void *pKey,    /* The key */
-  int nKey,            /* Number of bytes in the key */
-  void *data           /* The data */
-){
-  int hraw;                 /* Raw hash value of the key */
-  int h;                    /* the hash of the key modulo hash table size */
-  Fts3HashElem *elem;       /* Used to loop thru the element list */
-  Fts3HashElem *new_elem;   /* New element added to the pH */
-  int (*xHash)(const void*,int);  /* The hash function */
-
-  assert( pH!=0 );
-  xHash = ftsHashFunction(pH->keyClass);
-  assert( xHash!=0 );
-  hraw = (*xHash)(pKey, nKey);
-  assert( (pH->htsize & (pH->htsize-1))==0 );
-  h = hraw & (pH->htsize-1);
-  elem = fts3FindElementByHash(pH,pKey,nKey,h);
-  if( elem ){
-    void *old_data = elem->data;
-    if( data==0 ){
-      fts3RemoveElementByHash(pH,elem,h);
-    }else{
-      elem->data = data;
-    }
-    return old_data;
-  }
-  if( data==0 ) return 0;
-  if( (pH->htsize==0 && fts3Rehash(pH,8))
-   || (pH->count>=pH->htsize && fts3Rehash(pH, pH->htsize*2))
-  ){
-    pH->count = 0;
-    return data;
-  }
-  assert( pH->htsize>0 );
-  new_elem = (Fts3HashElem*)fts3HashMalloc( sizeof(Fts3HashElem) );
-  if( new_elem==0 ) return data;
-  if( pH->copyKey && pKey!=0 ){
-    new_elem->pKey = fts3HashMalloc( nKey );
-    if( new_elem->pKey==0 ){
-      fts3HashFree(new_elem);
-      return data;
-    }
-    memcpy((void*)new_elem->pKey, pKey, nKey);
-  }else{
-    new_elem->pKey = (void*)pKey;
-  }
-  new_elem->nKey = nKey;
-  pH->count++;
-  assert( pH->htsize>0 );
-  assert( (pH->htsize & (pH->htsize-1))==0 );
-  h = hraw & (pH->htsize-1);
-  fts3HashInsertElement(pH, &pH->ht[h], new_elem);
-  new_elem->data = data;
-  return 0;
-}
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-
-/************** End of fts3_hash.c *******************************************/
-/************** Begin file fts3_porter.c *************************************/
-/*
-** 2006 September 30
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Implementation of the full-text-search tokenizer that implements
-** a Porter stemmer.
-*/
-
-/*
-** The code in this file is only compiled if:
-**
-**     * The FTS3 module is being built as an extension
-**       (in which case SQLITE_CORE is not defined), or
-**
-**     * The FTS3 module is being built into the core of
-**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
-*/
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <assert.h> */
-/* #include <stdlib.h> */
-/* #include <stdio.h> */
-/* #include <string.h> */
-
-/* #include "fts3_tokenizer.h" */
-
-/*
-** Class derived from tdsqlite3_tokenizer
-*/
-typedef struct porter_tokenizer {
-  tdsqlite3_tokenizer base;      /* Base class */
-} porter_tokenizer;
-
-/*
-** Class derived from tdsqlite3_tokenizer_cursor
-*/
-typedef struct porter_tokenizer_cursor {
-  tdsqlite3_tokenizer_cursor base;
-  const char *zInput;          /* input we are tokenizing */
-  int nInput;                  /* size of the input */
-  int iOffset;                 /* current position in zInput */
-  int iToken;                  /* index of next token to be returned */
-  char *zToken;                /* storage for current token */
-  int nAllocated;              /* space allocated to zToken buffer */
-} porter_tokenizer_cursor;
-
-
-/*
-** Create a new tokenizer instance.
-*/
-static int porterCreate(
-  int argc, const char * const *argv,
-  tdsqlite3_tokenizer **ppTokenizer
-){
-  porter_tokenizer *t;
-
-  UNUSED_PARAMETER(argc);
-  UNUSED_PARAMETER(argv);
-
-  t = (porter_tokenizer *) tdsqlite3_malloc(sizeof(*t));
-  if( t==NULL ) return SQLITE_NOMEM;
-  memset(t, 0, sizeof(*t));
-  *ppTokenizer = &t->base;
-  return SQLITE_OK;
-}
-
-/*
-** Destroy a tokenizer
-*/
-static int porterDestroy(tdsqlite3_tokenizer *pTokenizer){
-  tdsqlite3_free(pTokenizer);
-  return SQLITE_OK;
-}
-
-/*
-** Prepare to begin tokenizing a particular string.  The input
-** string to be tokenized is zInput[0..nInput-1].  A cursor
-** used to incrementally tokenize this string is returned in 
-** *ppCursor.
-*/
-static int porterOpen(
-  tdsqlite3_tokenizer *pTokenizer,         /* The tokenizer */
-  const char *zInput, int nInput,        /* String to be tokenized */
-  tdsqlite3_tokenizer_cursor **ppCursor    /* OUT: Tokenization cursor */
-){
-  porter_tokenizer_cursor *c;
-
-  UNUSED_PARAMETER(pTokenizer);
-
-  c = (porter_tokenizer_cursor *) tdsqlite3_malloc(sizeof(*c));
-  if( c==NULL ) return SQLITE_NOMEM;
-
-  c->zInput = zInput;
-  if( zInput==0 ){
-    c->nInput = 0;
-  }else if( nInput<0 ){
-    c->nInput = (int)strlen(zInput);
-  }else{
-    c->nInput = nInput;
-  }
-  c->iOffset = 0;                 /* start tokenizing at the beginning */
-  c->iToken = 0;
-  c->zToken = NULL;               /* no space allocated, yet. */
-  c->nAllocated = 0;
-
-  *ppCursor = &c->base;
-  return SQLITE_OK;
-}
-
-/*
-** Close a tokenization cursor previously opened by a call to
-** porterOpen() above.
-*/
-static int porterClose(tdsqlite3_tokenizer_cursor *pCursor){
-  porter_tokenizer_cursor *c = (porter_tokenizer_cursor *) pCursor;
-  tdsqlite3_free(c->zToken);
-  tdsqlite3_free(c);
-  return SQLITE_OK;
-}
-/*
-** Vowel or consonant
-*/
-static const char cType[] = {
-   0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0,
-   1, 1, 1, 2, 1
-};
-
-/*
-** isConsonant() and isVowel() determine if their first character in
-** the string they point to is a consonant or a vowel, according
-** to Porter ruls.  
-**
-** A consonate is any letter other than 'a', 'e', 'i', 'o', or 'u'.
-** 'Y' is a consonant unless it follows another consonant,
-** in which case it is a vowel.
-**
-** In these routine, the letters are in reverse order.  So the 'y' rule
-** is that 'y' is a consonant unless it is followed by another
-** consonent.
-*/
-static int isVowel(const char*);
-static int isConsonant(const char *z){
-  int j;
-  char x = *z;
-  if( x==0 ) return 0;
-  assert( x>='a' && x<='z' );
-  j = cType[x-'a'];
-  if( j<2 ) return j;
-  return z[1]==0 || isVowel(z + 1);
-}
-static int isVowel(const char *z){
-  int j;
-  char x = *z;
-  if( x==0 ) return 0;
-  assert( x>='a' && x<='z' );
-  j = cType[x-'a'];
-  if( j<2 ) return 1-j;
-  return isConsonant(z + 1);
-}
-
-/*
-** Let any sequence of one or more vowels be represented by V and let
-** C be sequence of one or more consonants.  Then every word can be
-** represented as:
-**
-**           [C] (VC){m} [V]
-**
-** In prose:  A word is an optional consonant followed by zero or
-** vowel-consonant pairs followed by an optional vowel.  "m" is the
-** number of vowel consonant pairs.  This routine computes the value
-** of m for the first i bytes of a word.
-**
-** Return true if the m-value for z is 1 or more.  In other words,
-** return true if z contains at least one vowel that is followed
-** by a consonant.
-**
-** In this routine z[] is in reverse order.  So we are really looking
-** for an instance of a consonant followed by a vowel.
-*/
-static int m_gt_0(const char *z){
-  while( isVowel(z) ){ z++; }
-  if( *z==0 ) return 0;
-  while( isConsonant(z) ){ z++; }
-  return *z!=0;
-}
-
-/* Like mgt0 above except we are looking for a value of m which is
-** exactly 1
-*/
-static int m_eq_1(const char *z){
-  while( isVowel(z) ){ z++; }
-  if( *z==0 ) return 0;
-  while( isConsonant(z) ){ z++; }
-  if( *z==0 ) return 0;
-  while( isVowel(z) ){ z++; }
-  if( *z==0 ) return 1;
-  while( isConsonant(z) ){ z++; }
-  return *z==0;
-}
-
-/* Like mgt0 above except we are looking for a value of m>1 instead
-** or m>0
-*/
-static int m_gt_1(const char *z){
-  while( isVowel(z) ){ z++; }
-  if( *z==0 ) return 0;
-  while( isConsonant(z) ){ z++; }
-  if( *z==0 ) return 0;
-  while( isVowel(z) ){ z++; }
-  if( *z==0 ) return 0;
-  while( isConsonant(z) ){ z++; }
-  return *z!=0;
-}
-
-/*
-** Return TRUE if there is a vowel anywhere within z[0..n-1]
-*/
-static int hasVowel(const char *z){
-  while( isConsonant(z) ){ z++; }
-  return *z!=0;
-}
-
-/*
-** Return TRUE if the word ends in a double consonant.
-**
-** The text is reversed here. So we are really looking at
-** the first two characters of z[].
-*/
-static int doubleConsonant(const char *z){
-  return isConsonant(z) && z[0]==z[1];
-}
-
-/*
-** Return TRUE if the word ends with three letters which
-** are consonant-vowel-consonent and where the final consonant
-** is not 'w', 'x', or 'y'.
-**
-** The word is reversed here.  So we are really checking the
-** first three letters and the first one cannot be in [wxy].
-*/
-static int star_oh(const char *z){
-  return
-    isConsonant(z) &&
-    z[0]!='w' && z[0]!='x' && z[0]!='y' &&
-    isVowel(z+1) &&
-    isConsonant(z+2);
-}
-
-/*
-** If the word ends with zFrom and xCond() is true for the stem
-** of the word that preceeds the zFrom ending, then change the 
-** ending to zTo.
-**
-** The input word *pz and zFrom are both in reverse order.  zTo
-** is in normal order. 
-**
-** Return TRUE if zFrom matches.  Return FALSE if zFrom does not
-** match.  Not that TRUE is returned even if xCond() fails and
-** no substitution occurs.
-*/
-static int stem(
-  char **pz,             /* The word being stemmed (Reversed) */
-  const char *zFrom,     /* If the ending matches this... (Reversed) */
-  const char *zTo,       /* ... change the ending to this (not reversed) */
-  int (*xCond)(const char*)   /* Condition that must be true */
-){
-  char *z = *pz;
-  while( *zFrom && *zFrom==*z ){ z++; zFrom++; }
-  if( *zFrom!=0 ) return 0;
-  if( xCond && !xCond(z) ) return 1;
-  while( *zTo ){
-    *(--z) = *(zTo++);
-  }
-  *pz = z;
-  return 1;
-}
-
-/*
-** This is the fallback stemmer used when the porter stemmer is
-** inappropriate.  The input word is copied into the output with
-** US-ASCII case folding.  If the input word is too long (more
-** than 20 bytes if it contains no digits or more than 6 bytes if
-** it contains digits) then word is truncated to 20 or 6 bytes
-** by taking 10 or 3 bytes from the beginning and end.
-*/
-static void copy_stemmer(const char *zIn, int nIn, char *zOut, int *pnOut){
-  int i, mx, j;
-  int hasDigit = 0;
-  for(i=0; i<nIn; i++){
-    char c = zIn[i];
-    if( c>='A' && c<='Z' ){
-      zOut[i] = c - 'A' + 'a';
-    }else{
-      if( c>='0' && c<='9' ) hasDigit = 1;
-      zOut[i] = c;
-    }
-  }
-  mx = hasDigit ? 3 : 10;
-  if( nIn>mx*2 ){
-    for(j=mx, i=nIn-mx; i<nIn; i++, j++){
-      zOut[j] = zOut[i];
-    }
-    i = j;
-  }
-  zOut[i] = 0;
-  *pnOut = i;
-}
-
-
-/*
-** Stem the input word zIn[0..nIn-1].  Store the output in zOut.
-** zOut is at least big enough to hold nIn bytes.  Write the actual
-** size of the output word (exclusive of the '\0' terminator) into *pnOut.
-**
-** Any upper-case characters in the US-ASCII character set ([A-Z])
-** are converted to lower case.  Upper-case UTF characters are
-** unchanged.
-**
-** Words that are longer than about 20 bytes are stemmed by retaining
-** a few bytes from the beginning and the end of the word.  If the
-** word contains digits, 3 bytes are taken from the beginning and
-** 3 bytes from the end.  For long words without digits, 10 bytes
-** are taken from each end.  US-ASCII case folding still applies.
-** 
-** If the input word contains not digits but does characters not 
-** in [a-zA-Z] then no stemming is attempted and this routine just 
-** copies the input into the input into the output with US-ASCII
-** case folding.
-**
-** Stemming never increases the length of the word.  So there is
-** no chance of overflowing the zOut buffer.
-*/
-static void porter_stemmer(const char *zIn, int nIn, char *zOut, int *pnOut){
-  int i, j;
-  char zReverse[28];
-  char *z, *z2;
-  if( nIn<3 || nIn>=(int)sizeof(zReverse)-7 ){
-    /* The word is too big or too small for the porter stemmer.
-    ** Fallback to the copy stemmer */
-    copy_stemmer(zIn, nIn, zOut, pnOut);
-    return;
-  }
-  for(i=0, j=sizeof(zReverse)-6; i<nIn; i++, j--){
-    char c = zIn[i];
-    if( c>='A' && c<='Z' ){
-      zReverse[j] = c + 'a' - 'A';
-    }else if( c>='a' && c<='z' ){
-      zReverse[j] = c;
-    }else{
-      /* The use of a character not in [a-zA-Z] means that we fallback
-      ** to the copy stemmer */
-      copy_stemmer(zIn, nIn, zOut, pnOut);
-      return;
-    }
-  }
-  memset(&zReverse[sizeof(zReverse)-5], 0, 5);
-  z = &zReverse[j+1];
-
-
-  /* Step 1a */
-  if( z[0]=='s' ){
-    if(
-     !stem(&z, "sess", "ss", 0) &&
-     !stem(&z, "sei", "i", 0)  &&
-     !stem(&z, "ss", "ss", 0)
-    ){
-      z++;
-    }
-  }
-
-  /* Step 1b */  
-  z2 = z;
-  if( stem(&z, "dee", "ee", m_gt_0) ){
-    /* Do nothing.  The work was all in the test */
-  }else if( 
-     (stem(&z, "gni", "", hasVowel) || stem(&z, "de", "", hasVowel))
-      && z!=z2
-  ){
-     if( stem(&z, "ta", "ate", 0) ||
-         stem(&z, "lb", "ble", 0) ||
-         stem(&z, "zi", "ize", 0) ){
-       /* Do nothing.  The work was all in the test */
-     }else if( doubleConsonant(z) && (*z!='l' && *z!='s' && *z!='z') ){
-       z++;
-     }else if( m_eq_1(z) && star_oh(z) ){
-       *(--z) = 'e';
-     }
-  }
-
-  /* Step 1c */
-  if( z[0]=='y' && hasVowel(z+1) ){
-    z[0] = 'i';
-  }
-
-  /* Step 2 */
-  switch( z[1] ){
-   case 'a':
-     if( !stem(&z, "lanoita", "ate", m_gt_0) ){
-       stem(&z, "lanoit", "tion", m_gt_0);
-     }
-     break;
-   case 'c':
-     if( !stem(&z, "icne", "ence", m_gt_0) ){
-       stem(&z, "icna", "ance", m_gt_0);
-     }
-     break;
-   case 'e':
-     stem(&z, "rezi", "ize", m_gt_0);
-     break;
-   case 'g':
-     stem(&z, "igol", "log", m_gt_0);
-     break;
-   case 'l':
-     if( !stem(&z, "ilb", "ble", m_gt_0) 
-      && !stem(&z, "illa", "al", m_gt_0)
-      && !stem(&z, "iltne", "ent", m_gt_0)
-      && !stem(&z, "ile", "e", m_gt_0)
-     ){
-       stem(&z, "ilsuo", "ous", m_gt_0);
-     }
-     break;
-   case 'o':
-     if( !stem(&z, "noitazi", "ize", m_gt_0)
-      && !stem(&z, "noita", "ate", m_gt_0)
-     ){
-       stem(&z, "rota", "ate", m_gt_0);
-     }
-     break;
-   case 's':
-     if( !stem(&z, "msila", "al", m_gt_0)
-      && !stem(&z, "ssenevi", "ive", m_gt_0)
-      && !stem(&z, "ssenluf", "ful", m_gt_0)
-     ){
-       stem(&z, "ssensuo", "ous", m_gt_0);
-     }
-     break;
-   case 't':
-     if( !stem(&z, "itila", "al", m_gt_0)
-      && !stem(&z, "itivi", "ive", m_gt_0)
-     ){
-       stem(&z, "itilib", "ble", m_gt_0);
-     }
-     break;
-  }
-
-  /* Step 3 */
-  switch( z[0] ){
-   case 'e':
-     if( !stem(&z, "etaci", "ic", m_gt_0)
-      && !stem(&z, "evita", "", m_gt_0)
-     ){
-       stem(&z, "ezila", "al", m_gt_0);
-     }
-     break;
-   case 'i':
-     stem(&z, "itici", "ic", m_gt_0);
-     break;
-   case 'l':
-     if( !stem(&z, "laci", "ic", m_gt_0) ){
-       stem(&z, "luf", "", m_gt_0);
-     }
-     break;
-   case 's':
-     stem(&z, "ssen", "", m_gt_0);
-     break;
-  }
-
-  /* Step 4 */
-  switch( z[1] ){
-   case 'a':
-     if( z[0]=='l' && m_gt_1(z+2) ){
-       z += 2;
-     }
-     break;
-   case 'c':
-     if( z[0]=='e' && z[2]=='n' && (z[3]=='a' || z[3]=='e')  && m_gt_1(z+4)  ){
-       z += 4;
-     }
-     break;
-   case 'e':
-     if( z[0]=='r' && m_gt_1(z+2) ){
-       z += 2;
-     }
-     break;
-   case 'i':
-     if( z[0]=='c' && m_gt_1(z+2) ){
-       z += 2;
-     }
-     break;
-   case 'l':
-     if( z[0]=='e' && z[2]=='b' && (z[3]=='a' || z[3]=='i') && m_gt_1(z+4) ){
-       z += 4;
-     }
-     break;
-   case 'n':
-     if( z[0]=='t' ){
-       if( z[2]=='a' ){
-         if( m_gt_1(z+3) ){
-           z += 3;
-         }
-       }else if( z[2]=='e' ){
-         if( !stem(&z, "tneme", "", m_gt_1)
-          && !stem(&z, "tnem", "", m_gt_1)
-         ){
-           stem(&z, "tne", "", m_gt_1);
-         }
-       }
-     }
-     break;
-   case 'o':
-     if( z[0]=='u' ){
-       if( m_gt_1(z+2) ){
-         z += 2;
-       }
-     }else if( z[3]=='s' || z[3]=='t' ){
-       stem(&z, "noi", "", m_gt_1);
-     }
-     break;
-   case 's':
-     if( z[0]=='m' && z[2]=='i' && m_gt_1(z+3) ){
-       z += 3;
-     }
-     break;
-   case 't':
-     if( !stem(&z, "eta", "", m_gt_1) ){
-       stem(&z, "iti", "", m_gt_1);
-     }
-     break;
-   case 'u':
-     if( z[0]=='s' && z[2]=='o' && m_gt_1(z+3) ){
-       z += 3;
-     }
-     break;
-   case 'v':
-   case 'z':
-     if( z[0]=='e' && z[2]=='i' && m_gt_1(z+3) ){
-       z += 3;
-     }
-     break;
-  }
-
-  /* Step 5a */
-  if( z[0]=='e' ){
-    if( m_gt_1(z+1) ){
-      z++;
-    }else if( m_eq_1(z+1) && !star_oh(z+1) ){
-      z++;
-    }
-  }
-
-  /* Step 5b */
-  if( m_gt_1(z) && z[0]=='l' && z[1]=='l' ){
-    z++;
-  }
-
-  /* z[] is now the stemmed word in reverse order.  Flip it back
-  ** around into forward order and return.
-  */
-  *pnOut = i = (int)strlen(z);
-  zOut[i] = 0;
-  while( *z ){
-    zOut[--i] = *(z++);
-  }
-}
-
-/*
-** Characters that can be part of a token.  We assume any character
-** whose value is greater than 0x80 (any UTF character) can be
-** part of a token.  In other words, delimiters all must have
-** values of 0x7f or lower.
-*/
-static const char porterIdChar[] = {
-/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */
-    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,  /* 3x */
-    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 4x */
-    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,  /* 5x */
-    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 6x */
-    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,  /* 7x */
-};
-#define isDelim(C) (((ch=C)&0x80)==0 && (ch<0x30 || !porterIdChar[ch-0x30]))
-
-/*
-** Extract the next token from a tokenization cursor.  The cursor must
-** have been opened by a prior call to porterOpen().
-*/
-static int porterNext(
-  tdsqlite3_tokenizer_cursor *pCursor,  /* Cursor returned by porterOpen */
-  const char **pzToken,               /* OUT: *pzToken is the token text */
-  int *pnBytes,                       /* OUT: Number of bytes in token */
-  int *piStartOffset,                 /* OUT: Starting offset of token */
-  int *piEndOffset,                   /* OUT: Ending offset of token */
-  int *piPosition                     /* OUT: Position integer of token */
-){
-  porter_tokenizer_cursor *c = (porter_tokenizer_cursor *) pCursor;
-  const char *z = c->zInput;
-
-  while( c->iOffset<c->nInput ){
-    int iStartOffset, ch;
-
-    /* Scan past delimiter characters */
-    while( c->iOffset<c->nInput && isDelim(z[c->iOffset]) ){
-      c->iOffset++;
-    }
-
-    /* Count non-delimiter characters. */
-    iStartOffset = c->iOffset;
-    while( c->iOffset<c->nInput && !isDelim(z[c->iOffset]) ){
-      c->iOffset++;
-    }
-
-    if( c->iOffset>iStartOffset ){
-      int n = c->iOffset-iStartOffset;
-      if( n>c->nAllocated ){
-        char *pNew;
-        c->nAllocated = n+20;
-        pNew = tdsqlite3_realloc(c->zToken, c->nAllocated);
-        if( !pNew ) return SQLITE_NOMEM;
-        c->zToken = pNew;
-      }
-      porter_stemmer(&z[iStartOffset], n, c->zToken, pnBytes);
-      *pzToken = c->zToken;
-      *piStartOffset = iStartOffset;
-      *piEndOffset = c->iOffset;
-      *piPosition = c->iToken++;
-      return SQLITE_OK;
-    }
-  }
-  return SQLITE_DONE;
-}
-
-/*
-** The set of routines that implement the porter-stemmer tokenizer
-*/
-static const tdsqlite3_tokenizer_module porterTokenizerModule = {
-  0,
-  porterCreate,
-  porterDestroy,
-  porterOpen,
-  porterClose,
-  porterNext,
-  0
-};
-
-/*
-** Allocate a new porter tokenizer.  Return a pointer to the new
-** tokenizer in *ppModule
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3PorterTokenizerModule(
-  tdsqlite3_tokenizer_module const**ppModule
-){
-  *ppModule = &porterTokenizerModule;
-}
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-
-/************** End of fts3_porter.c *****************************************/
-/************** Begin file fts3_tokenizer.c **********************************/
-/*
-** 2007 June 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This is part of an SQLite module implementing full-text search.
-** This particular file implements the generic tokenizer interface.
-*/
-
-/*
-** The code in this file is only compiled if:
-**
-**     * The FTS3 module is being built as an extension
-**       (in which case SQLITE_CORE is not defined), or
-**
-**     * The FTS3 module is being built into the core of
-**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
-*/
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <assert.h> */
-/* #include <string.h> */
-
-/*
-** Return true if the two-argument version of fts3_tokenizer()
-** has been activated via a prior call to tdsqlite3_db_config(db,
-** SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, 1, 0);
-*/
-static int fts3TokenizerEnabled(tdsqlite3_context *context){
-  tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-  int isEnabled = 0;
-  tdsqlite3_db_config(db,SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER,-1,&isEnabled);
-  return isEnabled;
-}
-
-/*
-** Implementation of the SQL scalar function for accessing the underlying 
-** hash table. This function may be called as follows:
-**
-**   SELECT <function-name>(<key-name>);
-**   SELECT <function-name>(<key-name>, <pointer>);
-**
-** where <function-name> is the name passed as the second argument
-** to the tdsqlite3Fts3InitHashTable() function (e.g. 'fts3_tokenizer').
-**
-** If the <pointer> argument is specified, it must be a blob value
-** containing a pointer to be stored as the hash data corresponding
-** to the string <key-name>. If <pointer> is not specified, then
-** the string <key-name> must already exist in the has table. Otherwise,
-** an error is returned.
-**
-** Whether or not the <pointer> argument is specified, the value returned
-** is a blob containing the pointer stored as the hash data corresponding
-** to string <key-name> (after the hash-table is updated, if applicable).
-*/
-static void fts3TokenizerFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  Fts3Hash *pHash;
-  void *pPtr = 0;
-  const unsigned char *zName;
-  int nName;
-
-  assert( argc==1 || argc==2 );
-
-  pHash = (Fts3Hash *)tdsqlite3_user_data(context);
-
-  zName = tdsqlite3_value_text(argv[0]);
-  nName = tdsqlite3_value_bytes(argv[0])+1;
-
-  if( argc==2 ){
-    if( fts3TokenizerEnabled(context) || tdsqlite3_value_frombind(argv[1]) ){
-      void *pOld;
-      int n = tdsqlite3_value_bytes(argv[1]);
-      if( zName==0 || n!=sizeof(pPtr) ){
-        tdsqlite3_result_error(context, "argument type mismatch", -1);
-        return;
-      }
-      pPtr = *(void **)tdsqlite3_value_blob(argv[1]);
-      pOld = tdsqlite3Fts3HashInsert(pHash, (void *)zName, nName, pPtr);
-      if( pOld==pPtr ){
-        tdsqlite3_result_error(context, "out of memory", -1);
-      }
-    }else{
-      tdsqlite3_result_error(context, "fts3tokenize disabled", -1);
-      return;
-    }
-  }else{
-    if( zName ){
-      pPtr = tdsqlite3Fts3HashFind(pHash, zName, nName);
-    }
-    if( !pPtr ){
-      char *zErr = tdsqlite3_mprintf("unknown tokenizer: %s", zName);
-      tdsqlite3_result_error(context, zErr, -1);
-      tdsqlite3_free(zErr);
-      return;
-    }
-  }
-  if( fts3TokenizerEnabled(context) || tdsqlite3_value_frombind(argv[0]) ){
-    tdsqlite3_result_blob(context, (void *)&pPtr, sizeof(pPtr), SQLITE_TRANSIENT);
-  }
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3IsIdChar(char c){
-  static const char isFtsIdChar[] = {
-      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  /* 0x */
-      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  /* 1x */
-      0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  /* 2x */
-      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,  /* 3x */
-      0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 4x */
-      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,  /* 5x */
-      0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* 6x */
-      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0,  /* 7x */
-  };
-  return (c&0x80 || isFtsIdChar[(int)(c)]);
-}
-
-SQLITE_PRIVATE const char *tdsqlite3Fts3NextToken(const char *zStr, int *pn){
-  const char *z1;
-  const char *z2 = 0;
-
-  /* Find the start of the next token. */
-  z1 = zStr;
-  while( z2==0 ){
-    char c = *z1;
-    switch( c ){
-      case '\0': return 0;        /* No more tokens here */
-      case '\'':
-      case '"':
-      case '`': {
-        z2 = z1;
-        while( *++z2 && (*z2!=c || *++z2==c) );
-        break;
-      }
-      case '[':
-        z2 = &z1[1];
-        while( *z2 && z2[0]!=']' ) z2++;
-        if( *z2 ) z2++;
-        break;
-
-      default:
-        if( tdsqlite3Fts3IsIdChar(*z1) ){
-          z2 = &z1[1];
-          while( tdsqlite3Fts3IsIdChar(*z2) ) z2++;
-        }else{
-          z1++;
-        }
-    }
-  }
-
-  *pn = (int)(z2-z1);
-  return z1;
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3InitTokenizer(
-  Fts3Hash *pHash,                /* Tokenizer hash table */
-  const char *zArg,               /* Tokenizer name */
-  tdsqlite3_tokenizer **ppTok,      /* OUT: Tokenizer (if applicable) */
-  char **pzErr                    /* OUT: Set to malloced error message */
-){
-  int rc;
-  char *z = (char *)zArg;
-  int n = 0;
-  char *zCopy;
-  char *zEnd;                     /* Pointer to nul-term of zCopy */
-  tdsqlite3_tokenizer_module *m;
-
-  zCopy = tdsqlite3_mprintf("%s", zArg);
-  if( !zCopy ) return SQLITE_NOMEM;
-  zEnd = &zCopy[strlen(zCopy)];
-
-  z = (char *)tdsqlite3Fts3NextToken(zCopy, &n);
-  if( z==0 ){
-    assert( n==0 );
-    z = zCopy;
-  }
-  z[n] = '\0';
-  tdsqlite3Fts3Dequote(z);
-
-  m = (tdsqlite3_tokenizer_module *)tdsqlite3Fts3HashFind(pHash,z,(int)strlen(z)+1);
-  if( !m ){
-    tdsqlite3Fts3ErrMsg(pzErr, "unknown tokenizer: %s", z);
-    rc = SQLITE_ERROR;
-  }else{
-    char const **aArg = 0;
-    int iArg = 0;
-    z = &z[n+1];
-    while( z<zEnd && (NULL!=(z = (char *)tdsqlite3Fts3NextToken(z, &n))) ){
-      tdsqlite3_int64 nNew = sizeof(char *)*(iArg+1);
-      char const **aNew = (const char **)tdsqlite3_realloc64((void *)aArg, nNew);
-      if( !aNew ){
-        tdsqlite3_free(zCopy);
-        tdsqlite3_free((void *)aArg);
-        return SQLITE_NOMEM;
-      }
-      aArg = aNew;
-      aArg[iArg++] = z;
-      z[n] = '\0';
-      tdsqlite3Fts3Dequote(z);
-      z = &z[n+1];
-    }
-    rc = m->xCreate(iArg, aArg, ppTok);
-    assert( rc!=SQLITE_OK || *ppTok );
-    if( rc!=SQLITE_OK ){
-      tdsqlite3Fts3ErrMsg(pzErr, "unknown tokenizer");
-    }else{
-      (*ppTok)->pModule = m; 
-    }
-    tdsqlite3_free((void *)aArg);
-  }
-
-  tdsqlite3_free(zCopy);
-  return rc;
-}
-
-
-#ifdef SQLITE_TEST
-
-#if defined(INCLUDE_SQLITE_TCL_H)
-#  include "sqlite_tcl.h"
-#else
-#  include "tcl.h"
-#endif
-/* #include <string.h> */
-
-/*
-** Implementation of a special SQL scalar function for testing tokenizers 
-** designed to be used in concert with the Tcl testing framework. This
-** function must be called with two or more arguments:
-**
-**   SELECT <function-name>(<key-name>, ..., <input-string>);
-**
-** where <function-name> is the name passed as the second argument
-** to the tdsqlite3Fts3InitHashTable() function (e.g. 'fts3_tokenizer')
-** concatenated with the string '_test' (e.g. 'fts3_tokenizer_test').
-**
-** The return value is a string that may be interpreted as a Tcl
-** list. For each token in the <input-string>, three elements are
-** added to the returned list. The first is the token position, the 
-** second is the token text (folded, stemmed, etc.) and the third is the
-** substring of <input-string> associated with the token. For example, 
-** using the built-in "simple" tokenizer:
-**
-**   SELECT fts_tokenizer_test('simple', 'I don't see how');
-**
-** will return the string:
-**
-**   "{0 i I 1 dont don't 2 see see 3 how how}"
-**   
-*/
-static void testFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  Fts3Hash *pHash;
-  tdsqlite3_tokenizer_module *p;
-  tdsqlite3_tokenizer *pTokenizer = 0;
-  tdsqlite3_tokenizer_cursor *pCsr = 0;
-
-  const char *zErr = 0;
-
-  const char *zName;
-  int nName;
-  const char *zInput;
-  int nInput;
-
-  const char *azArg[64];
-
-  const char *zToken;
-  int nToken = 0;
-  int iStart = 0;
-  int iEnd = 0;
-  int iPos = 0;
-  int i;
-
-  Tcl_Obj *pRet;
-
-  if( argc<2 ){
-    tdsqlite3_result_error(context, "insufficient arguments", -1);
-    return;
-  }
-
-  nName = tdsqlite3_value_bytes(argv[0]);
-  zName = (const char *)tdsqlite3_value_text(argv[0]);
-  nInput = tdsqlite3_value_bytes(argv[argc-1]);
-  zInput = (const char *)tdsqlite3_value_text(argv[argc-1]);
-
-  pHash = (Fts3Hash *)tdsqlite3_user_data(context);
-  p = (tdsqlite3_tokenizer_module *)tdsqlite3Fts3HashFind(pHash, zName, nName+1);
-
-  if( !p ){
-    char *zErr2 = tdsqlite3_mprintf("unknown tokenizer: %s", zName);
-    tdsqlite3_result_error(context, zErr2, -1);
-    tdsqlite3_free(zErr2);
-    return;
-  }
-
-  pRet = Tcl_NewObj();
-  Tcl_IncrRefCount(pRet);
-
-  for(i=1; i<argc-1; i++){
-    azArg[i-1] = (const char *)tdsqlite3_value_text(argv[i]);
-  }
-
-  if( SQLITE_OK!=p->xCreate(argc-2, azArg, &pTokenizer) ){
-    zErr = "error in xCreate()";
-    goto finish;
-  }
-  pTokenizer->pModule = p;
-  if( tdsqlite3Fts3OpenTokenizer(pTokenizer, 0, zInput, nInput, &pCsr) ){
-    zErr = "error in xOpen()";
-    goto finish;
-  }
-
-  while( SQLITE_OK==p->xNext(pCsr, &zToken, &nToken, &iStart, &iEnd, &iPos) ){
-    Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(iPos));
-    Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zToken, nToken));
-    zToken = &zInput[iStart];
-    nToken = iEnd-iStart;
-    Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zToken, nToken));
-  }
-
-  if( SQLITE_OK!=p->xClose(pCsr) ){
-    zErr = "error in xClose()";
-    goto finish;
-  }
-  if( SQLITE_OK!=p->xDestroy(pTokenizer) ){
-    zErr = "error in xDestroy()";
-    goto finish;
-  }
-
-finish:
-  if( zErr ){
-    tdsqlite3_result_error(context, zErr, -1);
-  }else{
-    tdsqlite3_result_text(context, Tcl_GetString(pRet), -1, SQLITE_TRANSIENT);
-  }
-  Tcl_DecrRefCount(pRet);
-}
-
-static
-int registerTokenizer(
-  tdsqlite3 *db, 
-  char *zName, 
-  const tdsqlite3_tokenizer_module *p
-){
-  int rc;
-  tdsqlite3_stmt *pStmt;
-  const char zSql[] = "SELECT fts3_tokenizer(?, ?)";
-
-  rc = tdsqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  tdsqlite3_bind_text(pStmt, 1, zName, -1, SQLITE_STATIC);
-  tdsqlite3_bind_blob(pStmt, 2, &p, sizeof(p), SQLITE_STATIC);
-  tdsqlite3_step(pStmt);
-
-  return tdsqlite3_finalize(pStmt);
-}
-
-
-static
-int queryTokenizer(
-  tdsqlite3 *db, 
-  char *zName,  
-  const tdsqlite3_tokenizer_module **pp
-){
-  int rc;
-  tdsqlite3_stmt *pStmt;
-  const char zSql[] = "SELECT fts3_tokenizer(?)";
-
-  *pp = 0;
-  rc = tdsqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  tdsqlite3_bind_text(pStmt, 1, zName, -1, SQLITE_STATIC);
-  if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-    if( tdsqlite3_column_type(pStmt, 0)==SQLITE_BLOB
-     && tdsqlite3_column_bytes(pStmt, 0)==sizeof(*pp)
-    ){
-      memcpy((void *)pp, tdsqlite3_column_blob(pStmt, 0), sizeof(*pp));
-    }
-  }
-
-  return tdsqlite3_finalize(pStmt);
-}
-
-SQLITE_PRIVATE void tdsqlite3Fts3SimpleTokenizerModule(tdsqlite3_tokenizer_module const**ppModule);
-
-/*
-** Implementation of the scalar function fts3_tokenizer_internal_test().
-** This function is used for testing only, it is not included in the
-** build unless SQLITE_TEST is defined.
-**
-** The purpose of this is to test that the fts3_tokenizer() function
-** can be used as designed by the C-code in the queryTokenizer and
-** registerTokenizer() functions above. These two functions are repeated
-** in the README.tokenizer file as an example, so it is important to
-** test them.
-**
-** To run the tests, evaluate the fts3_tokenizer_internal_test() scalar
-** function with no arguments. An assert() will fail if a problem is
-** detected. i.e.:
-**
-**     SELECT fts3_tokenizer_internal_test();
-**
-*/
-static void intTestFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  int rc;
-  const tdsqlite3_tokenizer_module *p1;
-  const tdsqlite3_tokenizer_module *p2;
-  tdsqlite3 *db = (tdsqlite3 *)tdsqlite3_user_data(context);
-
-  UNUSED_PARAMETER(argc);
-  UNUSED_PARAMETER(argv);
-
-  /* Test the query function */
-  tdsqlite3Fts3SimpleTokenizerModule(&p1);
-  rc = queryTokenizer(db, "simple", &p2);
-  assert( rc==SQLITE_OK );
-  assert( p1==p2 );
-  rc = queryTokenizer(db, "nosuchtokenizer", &p2);
-  assert( rc==SQLITE_ERROR );
-  assert( p2==0 );
-  assert( 0==strcmp(tdsqlite3_errmsg(db), "unknown tokenizer: nosuchtokenizer") );
-
-  /* Test the storage function */
-  if( fts3TokenizerEnabled(context) ){
-    rc = registerTokenizer(db, "nosuchtokenizer", p1);
-    assert( rc==SQLITE_OK );
-    rc = queryTokenizer(db, "nosuchtokenizer", &p2);
-    assert( rc==SQLITE_OK );
-    assert( p2==p1 );
-  }
-
-  tdsqlite3_result_text(context, "ok", -1, SQLITE_STATIC);
-}
-
-#endif
-
-/*
-** Set up SQL objects in database db used to access the contents of
-** the hash table pointed to by argument pHash. The hash table must
-** been initialized to use string keys, and to take a private copy 
-** of the key when a value is inserted. i.e. by a call similar to:
-**
-**    tdsqlite3Fts3HashInit(pHash, FTS3_HASH_STRING, 1);
-**
-** This function adds a scalar function (see header comment above
-** fts3TokenizerFunc() in this file for details) and, if ENABLE_TABLE is
-** defined at compilation time, a temporary virtual table (see header 
-** comment above struct HashTableVtab) to the database schema. Both 
-** provide read/write access to the contents of *pHash.
-**
-** The third argument to this function, zName, is used as the name
-** of both the scalar and, if created, the virtual table.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3InitHashTable(
-  tdsqlite3 *db, 
-  Fts3Hash *pHash, 
-  const char *zName
-){
-  int rc = SQLITE_OK;
-  void *p = (void *)pHash;
-  const int any = SQLITE_UTF8|SQLITE_DIRECTONLY;
-
-#ifdef SQLITE_TEST
-  char *zTest = 0;
-  char *zTest2 = 0;
-  void *pdb = (void *)db;
-  zTest = tdsqlite3_mprintf("%s_test", zName);
-  zTest2 = tdsqlite3_mprintf("%s_internal_test", zName);
-  if( !zTest || !zTest2 ){
-    rc = SQLITE_NOMEM;
-  }
-#endif
-
-  if( SQLITE_OK==rc ){
-    rc = tdsqlite3_create_function(db, zName, 1, any, p, fts3TokenizerFunc, 0, 0);
-  }
-  if( SQLITE_OK==rc ){
-    rc = tdsqlite3_create_function(db, zName, 2, any, p, fts3TokenizerFunc, 0, 0);
-  }
-#ifdef SQLITE_TEST
-  if( SQLITE_OK==rc ){
-    rc = tdsqlite3_create_function(db, zTest, -1, any, p, testFunc, 0, 0);
-  }
-  if( SQLITE_OK==rc ){
-    rc = tdsqlite3_create_function(db, zTest2, 0, any, pdb, intTestFunc, 0, 0);
-  }
-#endif
-
-#ifdef SQLITE_TEST
-  tdsqlite3_free(zTest);
-  tdsqlite3_free(zTest2);
-#endif
-
-  return rc;
-}
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-
-/************** End of fts3_tokenizer.c **************************************/
-/************** Begin file fts3_tokenizer1.c *********************************/
-/*
-** 2006 Oct 10
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** Implementation of the "simple" full-text-search tokenizer.
-*/
-
-/*
-** The code in this file is only compiled if:
-**
-**     * The FTS3 module is being built as an extension
-**       (in which case SQLITE_CORE is not defined), or
-**
-**     * The FTS3 module is being built into the core of
-**       SQLite (in which case SQLITE_ENABLE_FTS3 is defined).
-*/
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <assert.h> */
-/* #include <stdlib.h> */
-/* #include <stdio.h> */
-/* #include <string.h> */
-
-/* #include "fts3_tokenizer.h" */
-
-typedef struct simple_tokenizer {
-  tdsqlite3_tokenizer base;
-  char delim[128];             /* flag ASCII delimiters */
-} simple_tokenizer;
-
-typedef struct simple_tokenizer_cursor {
-  tdsqlite3_tokenizer_cursor base;
-  const char *pInput;          /* input we are tokenizing */
-  int nBytes;                  /* size of the input */
-  int iOffset;                 /* current position in pInput */
-  int iToken;                  /* index of next token to be returned */
-  char *pToken;                /* storage for current token */
-  int nTokenAllocated;         /* space allocated to zToken buffer */
-} simple_tokenizer_cursor;
-
-
-static int simpleDelim(simple_tokenizer *t, unsigned char c){
-  return c<0x80 && t->delim[c];
-}
-static int fts3_isalnum(int x){
-  return (x>='0' && x<='9') || (x>='A' && x<='Z') || (x>='a' && x<='z');
-}
-
-/*
-** Create a new tokenizer instance.
-*/
-static int simpleCreate(
-  int argc, const char * const *argv,
-  tdsqlite3_tokenizer **ppTokenizer
-){
-  simple_tokenizer *t;
-
-  t = (simple_tokenizer *) tdsqlite3_malloc(sizeof(*t));
-  if( t==NULL ) return SQLITE_NOMEM;
-  memset(t, 0, sizeof(*t));
-
-  /* TODO(shess) Delimiters need to remain the same from run to run,
-  ** else we need to reindex.  One solution would be a meta-table to
-  ** track such information in the database, then we'd only want this
-  ** information on the initial create.
-  */
-  if( argc>1 ){
-    int i, n = (int)strlen(argv[1]);
-    for(i=0; i<n; i++){
-      unsigned char ch = argv[1][i];
-      /* We explicitly don't support UTF-8 delimiters for now. */
-      if( ch>=0x80 ){
-        tdsqlite3_free(t);
-        return SQLITE_ERROR;
-      }
-      t->delim[ch] = 1;
-    }
-  } else {
-    /* Mark non-alphanumeric ASCII characters as delimiters */
-    int i;
-    for(i=1; i<0x80; i++){
-      t->delim[i] = !fts3_isalnum(i) ? -1 : 0;
-    }
-  }
-
-  *ppTokenizer = &t->base;
-  return SQLITE_OK;
-}
-
-/*
-** Destroy a tokenizer
-*/
-static int simpleDestroy(tdsqlite3_tokenizer *pTokenizer){
-  tdsqlite3_free(pTokenizer);
-  return SQLITE_OK;
-}
-
-/*
-** Prepare to begin tokenizing a particular string.  The input
-** string to be tokenized is pInput[0..nBytes-1].  A cursor
-** used to incrementally tokenize this string is returned in 
-** *ppCursor.
-*/
-static int simpleOpen(
-  tdsqlite3_tokenizer *pTokenizer,         /* The tokenizer */
-  const char *pInput, int nBytes,        /* String to be tokenized */
-  tdsqlite3_tokenizer_cursor **ppCursor    /* OUT: Tokenization cursor */
-){
-  simple_tokenizer_cursor *c;
-
-  UNUSED_PARAMETER(pTokenizer);
-
-  c = (simple_tokenizer_cursor *) tdsqlite3_malloc(sizeof(*c));
-  if( c==NULL ) return SQLITE_NOMEM;
-
-  c->pInput = pInput;
-  if( pInput==0 ){
-    c->nBytes = 0;
-  }else if( nBytes<0 ){
-    c->nBytes = (int)strlen(pInput);
-  }else{
-    c->nBytes = nBytes;
-  }
-  c->iOffset = 0;                 /* start tokenizing at the beginning */
-  c->iToken = 0;
-  c->pToken = NULL;               /* no space allocated, yet. */
-  c->nTokenAllocated = 0;
-
-  *ppCursor = &c->base;
-  return SQLITE_OK;
-}
-
-/*
-** Close a tokenization cursor previously opened by a call to
-** simpleOpen() above.
-*/
-static int simpleClose(tdsqlite3_tokenizer_cursor *pCursor){
-  simple_tokenizer_cursor *c = (simple_tokenizer_cursor *) pCursor;
-  tdsqlite3_free(c->pToken);
-  tdsqlite3_free(c);
-  return SQLITE_OK;
-}
-
-/*
-** Extract the next token from a tokenization cursor.  The cursor must
-** have been opened by a prior call to simpleOpen().
-*/
-static int simpleNext(
-  tdsqlite3_tokenizer_cursor *pCursor,  /* Cursor returned by simpleOpen */
-  const char **ppToken,               /* OUT: *ppToken is the token text */
-  int *pnBytes,                       /* OUT: Number of bytes in token */
-  int *piStartOffset,                 /* OUT: Starting offset of token */
-  int *piEndOffset,                   /* OUT: Ending offset of token */
-  int *piPosition                     /* OUT: Position integer of token */
-){
-  simple_tokenizer_cursor *c = (simple_tokenizer_cursor *) pCursor;
-  simple_tokenizer *t = (simple_tokenizer *) pCursor->pTokenizer;
-  unsigned char *p = (unsigned char *)c->pInput;
-
-  while( c->iOffset<c->nBytes ){
-    int iStartOffset;
-
-    /* Scan past delimiter characters */
-    while( c->iOffset<c->nBytes && simpleDelim(t, p[c->iOffset]) ){
-      c->iOffset++;
-    }
-
-    /* Count non-delimiter characters. */
-    iStartOffset = c->iOffset;
-    while( c->iOffset<c->nBytes && !simpleDelim(t, p[c->iOffset]) ){
-      c->iOffset++;
-    }
-
-    if( c->iOffset>iStartOffset ){
-      int i, n = c->iOffset-iStartOffset;
-      if( n>c->nTokenAllocated ){
-        char *pNew;
-        c->nTokenAllocated = n+20;
-        pNew = tdsqlite3_realloc(c->pToken, c->nTokenAllocated);
-        if( !pNew ) return SQLITE_NOMEM;
-        c->pToken = pNew;
-      }
-      for(i=0; i<n; i++){
-        /* TODO(shess) This needs expansion to handle UTF-8
-        ** case-insensitivity.
-        */
-        unsigned char ch = p[iStartOffset+i];
-        c->pToken[i] = (char)((ch>='A' && ch<='Z') ? ch-'A'+'a' : ch);
-      }
-      *ppToken = c->pToken;
-      *pnBytes = n;
-      *piStartOffset = iStartOffset;
-      *piEndOffset = c->iOffset;
-      *piPosition = c->iToken++;
-
-      return SQLITE_OK;
-    }
-  }
-  return SQLITE_DONE;
-}
-
-/*
-** The set of routines that implement the simple tokenizer
-*/
-static const tdsqlite3_tokenizer_module simpleTokenizerModule = {
-  0,
-  simpleCreate,
-  simpleDestroy,
-  simpleOpen,
-  simpleClose,
-  simpleNext,
-  0,
-};
-
-/*
-** Allocate a new simple tokenizer.  Return a pointer to the new
-** tokenizer in *ppModule
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3SimpleTokenizerModule(
-  tdsqlite3_tokenizer_module const**ppModule
-){
-  *ppModule = &simpleTokenizerModule;
-}
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-
-/************** End of fts3_tokenizer1.c *************************************/
-/************** Begin file fts3_tokenize_vtab.c ******************************/
-/*
-** 2013 Apr 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains code for the "fts3tokenize" virtual table module.
-** An fts3tokenize virtual table is created as follows:
-**
-**   CREATE VIRTUAL TABLE <tbl> USING fts3tokenize(
-**       <tokenizer-name>, <arg-1>, ...
-**   );
-**
-** The table created has the following schema:
-**
-**   CREATE TABLE <tbl>(input, token, start, end, position)
-**
-** When queried, the query must include a WHERE clause of type:
-**
-**   input = <string>
-**
-** The virtual table module tokenizes this <string>, using the FTS3 
-** tokenizer specified by the arguments to the CREATE VIRTUAL TABLE 
-** statement and returns one row for each token in the result. With
-** fields set as follows:
-**
-**   input:   Always set to a copy of <string>
-**   token:   A token from the input.
-**   start:   Byte offset of the token within the input <string>.
-**   end:     Byte offset of the byte immediately following the end of the
-**            token within the input string.
-**   pos:     Token offset of token within input.
-**
-*/
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <string.h> */
-/* #include <assert.h> */
-
-typedef struct Fts3tokTable Fts3tokTable;
-typedef struct Fts3tokCursor Fts3tokCursor;
-
-/*
-** Virtual table structure.
-*/
-struct Fts3tokTable {
-  tdsqlite3_vtab base;              /* Base class used by SQLite core */
-  const tdsqlite3_tokenizer_module *pMod;
-  tdsqlite3_tokenizer *pTok;
-};
-
-/*
-** Virtual table cursor structure.
-*/
-struct Fts3tokCursor {
-  tdsqlite3_vtab_cursor base;       /* Base class used by SQLite core */
-  char *zInput;                   /* Input string */
-  tdsqlite3_tokenizer_cursor *pCsr; /* Cursor to iterate through zInput */
-  int iRowid;                     /* Current 'rowid' value */
-  const char *zToken;             /* Current 'token' value */
-  int nToken;                     /* Size of zToken in bytes */
-  int iStart;                     /* Current 'start' value */
-  int iEnd;                       /* Current 'end' value */
-  int iPos;                       /* Current 'pos' value */
-};
-
-/*
-** Query FTS for the tokenizer implementation named zName.
-*/
-static int fts3tokQueryTokenizer(
-  Fts3Hash *pHash,
-  const char *zName,
-  const tdsqlite3_tokenizer_module **pp,
-  char **pzErr
-){
-  tdsqlite3_tokenizer_module *p;
-  int nName = (int)strlen(zName);
-
-  p = (tdsqlite3_tokenizer_module *)tdsqlite3Fts3HashFind(pHash, zName, nName+1);
-  if( !p ){
-    tdsqlite3Fts3ErrMsg(pzErr, "unknown tokenizer: %s", zName);
-    return SQLITE_ERROR;
-  }
-
-  *pp = p;
-  return SQLITE_OK;
-}
-
-/*
-** The second argument, argv[], is an array of pointers to nul-terminated
-** strings. This function makes a copy of the array and strings into a 
-** single block of memory. It then dequotes any of the strings that appear
-** to be quoted.
-**
-** If successful, output parameter *pazDequote is set to point at the
-** array of dequoted strings and SQLITE_OK is returned. The caller is
-** responsible for eventually calling tdsqlite3_free() to free the array
-** in this case. Or, if an error occurs, an SQLite error code is returned.
-** The final value of *pazDequote is undefined in this case.
-*/
-static int fts3tokDequoteArray(
-  int argc,                       /* Number of elements in argv[] */
-  const char * const *argv,       /* Input array */
-  char ***pazDequote              /* Output array */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  if( argc==0 ){
-    *pazDequote = 0;
-  }else{
-    int i;
-    int nByte = 0;
-    char **azDequote;
-
-    for(i=0; i<argc; i++){
-      nByte += (int)(strlen(argv[i]) + 1);
-    }
-
-    *pazDequote = azDequote = tdsqlite3_malloc64(sizeof(char *)*argc + nByte);
-    if( azDequote==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      char *pSpace = (char *)&azDequote[argc];
-      for(i=0; i<argc; i++){
-        int n = (int)strlen(argv[i]);
-        azDequote[i] = pSpace;
-        memcpy(pSpace, argv[i], n+1);
-        tdsqlite3Fts3Dequote(pSpace);
-        pSpace += (n+1);
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Schema of the tokenizer table.
-*/
-#define FTS3_TOK_SCHEMA "CREATE TABLE x(input, token, start, end, position)"
-
-/*
-** This function does all the work for both the xConnect and xCreate methods.
-** These tables have no persistent representation of their own, so xConnect
-** and xCreate are identical operations.
-**
-**   argv[0]: module name
-**   argv[1]: database name 
-**   argv[2]: table name
-**   argv[3]: first argument (tokenizer name)
-*/
-static int fts3tokConnectMethod(
-  tdsqlite3 *db,                    /* Database connection */
-  void *pHash,                    /* Hash table of tokenizers */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVtab,          /* OUT: New tdsqlite3_vtab object */
-  char **pzErr                    /* OUT: tdsqlite3_malloc'd error message */
-){
-  Fts3tokTable *pTab = 0;
-  const tdsqlite3_tokenizer_module *pMod = 0;
-  tdsqlite3_tokenizer *pTok = 0;
-  int rc;
-  char **azDequote = 0;
-  int nDequote;
-
-  rc = tdsqlite3_declare_vtab(db, FTS3_TOK_SCHEMA);
-  if( rc!=SQLITE_OK ) return rc;
-
-  nDequote = argc-3;
-  rc = fts3tokDequoteArray(nDequote, &argv[3], &azDequote);
-
-  if( rc==SQLITE_OK ){
-    const char *zModule;
-    if( nDequote<1 ){
-      zModule = "simple";
-    }else{
-      zModule = azDequote[0];
-    }
-    rc = fts3tokQueryTokenizer((Fts3Hash*)pHash, zModule, &pMod, pzErr);
-  }
-
-  assert( (rc==SQLITE_OK)==(pMod!=0) );
-  if( rc==SQLITE_OK ){
-    const char * const *azArg = (const char * const *)&azDequote[1];
-    rc = pMod->xCreate((nDequote>1 ? nDequote-1 : 0), azArg, &pTok);
-  }
-
-  if( rc==SQLITE_OK ){
-    pTab = (Fts3tokTable *)tdsqlite3_malloc(sizeof(Fts3tokTable));
-    if( pTab==0 ){
-      rc = SQLITE_NOMEM;
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    memset(pTab, 0, sizeof(Fts3tokTable));
-    pTab->pMod = pMod;
-    pTab->pTok = pTok;
-    *ppVtab = &pTab->base;
-  }else{
-    if( pTok ){
-      pMod->xDestroy(pTok);
-    }
-  }
-
-  tdsqlite3_free(azDequote);
-  return rc;
-}
-
-/*
-** This function does the work for both the xDisconnect and xDestroy methods.
-** These tables have no persistent representation of their own, so xDisconnect
-** and xDestroy are identical operations.
-*/
-static int fts3tokDisconnectMethod(tdsqlite3_vtab *pVtab){
-  Fts3tokTable *pTab = (Fts3tokTable *)pVtab;
-
-  pTab->pMod->xDestroy(pTab->pTok);
-  tdsqlite3_free(pTab);
-  return SQLITE_OK;
-}
-
-/*
-** xBestIndex - Analyze a WHERE and ORDER BY clause.
-*/
-static int fts3tokBestIndexMethod(
-  tdsqlite3_vtab *pVTab, 
-  tdsqlite3_index_info *pInfo
-){
-  int i;
-  UNUSED_PARAMETER(pVTab);
-
-  for(i=0; i<pInfo->nConstraint; i++){
-    if( pInfo->aConstraint[i].usable 
-     && pInfo->aConstraint[i].iColumn==0 
-     && pInfo->aConstraint[i].op==SQLITE_INDEX_CONSTRAINT_EQ 
-    ){
-      pInfo->idxNum = 1;
-      pInfo->aConstraintUsage[i].argvIndex = 1;
-      pInfo->aConstraintUsage[i].omit = 1;
-      pInfo->estimatedCost = 1;
-      return SQLITE_OK;
-    }
-  }
-
-  pInfo->idxNum = 0;
-  assert( pInfo->estimatedCost>1000000.0 );
-
-  return SQLITE_OK;
-}
-
-/*
-** xOpen - Open a cursor.
-*/
-static int fts3tokOpenMethod(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCsr){
-  Fts3tokCursor *pCsr;
-  UNUSED_PARAMETER(pVTab);
-
-  pCsr = (Fts3tokCursor *)tdsqlite3_malloc(sizeof(Fts3tokCursor));
-  if( pCsr==0 ){
-    return SQLITE_NOMEM;
-  }
-  memset(pCsr, 0, sizeof(Fts3tokCursor));
-
-  *ppCsr = (tdsqlite3_vtab_cursor *)pCsr;
-  return SQLITE_OK;
-}
-
-/*
-** Reset the tokenizer cursor passed as the only argument. As if it had
-** just been returned by fts3tokOpenMethod().
-*/
-static void fts3tokResetCursor(Fts3tokCursor *pCsr){
-  if( pCsr->pCsr ){
-    Fts3tokTable *pTab = (Fts3tokTable *)(pCsr->base.pVtab);
-    pTab->pMod->xClose(pCsr->pCsr);
-    pCsr->pCsr = 0;
-  }
-  tdsqlite3_free(pCsr->zInput);
-  pCsr->zInput = 0;
-  pCsr->zToken = 0;
-  pCsr->nToken = 0;
-  pCsr->iStart = 0;
-  pCsr->iEnd = 0;
-  pCsr->iPos = 0;
-  pCsr->iRowid = 0;
-}
-
-/*
-** xClose - Close a cursor.
-*/
-static int fts3tokCloseMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
-
-  fts3tokResetCursor(pCsr);
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-/*
-** xNext - Advance the cursor to the next row, if any.
-*/
-static int fts3tokNextMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
-  Fts3tokTable *pTab = (Fts3tokTable *)(pCursor->pVtab);
-  int rc;                         /* Return code */
-
-  pCsr->iRowid++;
-  rc = pTab->pMod->xNext(pCsr->pCsr,
-      &pCsr->zToken, &pCsr->nToken,
-      &pCsr->iStart, &pCsr->iEnd, &pCsr->iPos
-  );
-
-  if( rc!=SQLITE_OK ){
-    fts3tokResetCursor(pCsr);
-    if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-  }
-
-  return rc;
-}
-
-/*
-** xFilter - Initialize a cursor to point at the start of its data.
-*/
-static int fts3tokFilterMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
-  int idxNum,                     /* Strategy index */
-  const char *idxStr,             /* Unused */
-  int nVal,                       /* Number of elements in apVal */
-  tdsqlite3_value **apVal           /* Arguments for the indexing scheme */
-){
-  int rc = SQLITE_ERROR;
-  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
-  Fts3tokTable *pTab = (Fts3tokTable *)(pCursor->pVtab);
-  UNUSED_PARAMETER(idxStr);
-  UNUSED_PARAMETER(nVal);
-
-  fts3tokResetCursor(pCsr);
-  if( idxNum==1 ){
-    const char *zByte = (const char *)tdsqlite3_value_text(apVal[0]);
-    int nByte = tdsqlite3_value_bytes(apVal[0]);
-    pCsr->zInput = tdsqlite3_malloc64(nByte+1);
-    if( pCsr->zInput==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      memcpy(pCsr->zInput, zByte, nByte);
-      pCsr->zInput[nByte] = 0;
-      rc = pTab->pMod->xOpen(pTab->pTok, pCsr->zInput, nByte, &pCsr->pCsr);
-      if( rc==SQLITE_OK ){
-        pCsr->pCsr->pTokenizer = pTab->pTok;
-      }
-    }
-  }
-
-  if( rc!=SQLITE_OK ) return rc;
-  return fts3tokNextMethod(pCursor);
-}
-
-/*
-** xEof - Return true if the cursor is at EOF, or false otherwise.
-*/
-static int fts3tokEofMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
-  return (pCsr->zToken==0);
-}
-
-/*
-** xColumn - Return a column value.
-*/
-static int fts3tokColumnMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  tdsqlite3_context *pCtx,          /* Context for tdsqlite3_result_xxx() calls */
-  int iCol                        /* Index of column to read value from */
-){
-  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
-
-  /* CREATE TABLE x(input, token, start, end, position) */
-  switch( iCol ){
-    case 0:
-      tdsqlite3_result_text(pCtx, pCsr->zInput, -1, SQLITE_TRANSIENT);
-      break;
-    case 1:
-      tdsqlite3_result_text(pCtx, pCsr->zToken, pCsr->nToken, SQLITE_TRANSIENT);
-      break;
-    case 2:
-      tdsqlite3_result_int(pCtx, pCsr->iStart);
-      break;
-    case 3:
-      tdsqlite3_result_int(pCtx, pCsr->iEnd);
-      break;
-    default:
-      assert( iCol==4 );
-      tdsqlite3_result_int(pCtx, pCsr->iPos);
-      break;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** xRowid - Return the current rowid for the cursor.
-*/
-static int fts3tokRowidMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  sqlite_int64 *pRowid            /* OUT: Rowid value */
-){
-  Fts3tokCursor *pCsr = (Fts3tokCursor *)pCursor;
-  *pRowid = (tdsqlite3_int64)pCsr->iRowid;
-  return SQLITE_OK;
-}
-
-/*
-** Register the fts3tok module with database connection db. Return SQLITE_OK
-** if successful or an error code if tdsqlite3_create_module() fails.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3InitTok(tdsqlite3 *db, Fts3Hash *pHash){
-  static const tdsqlite3_module fts3tok_module = {
-     0,                           /* iVersion      */
-     fts3tokConnectMethod,        /* xCreate       */
-     fts3tokConnectMethod,        /* xConnect      */
-     fts3tokBestIndexMethod,      /* xBestIndex    */
-     fts3tokDisconnectMethod,     /* xDisconnect   */
-     fts3tokDisconnectMethod,     /* xDestroy      */
-     fts3tokOpenMethod,           /* xOpen         */
-     fts3tokCloseMethod,          /* xClose        */
-     fts3tokFilterMethod,         /* xFilter       */
-     fts3tokNextMethod,           /* xNext         */
-     fts3tokEofMethod,            /* xEof          */
-     fts3tokColumnMethod,         /* xColumn       */
-     fts3tokRowidMethod,          /* xRowid        */
-     0,                           /* xUpdate       */
-     0,                           /* xBegin        */
-     0,                           /* xSync         */
-     0,                           /* xCommit       */
-     0,                           /* xRollback     */
-     0,                           /* xFindFunction */
-     0,                           /* xRename       */
-     0,                           /* xSavepoint    */
-     0,                           /* xRelease      */
-     0,                           /* xRollbackTo   */
-     0                            /* xShadowName   */
-  };
-  int rc;                         /* Return code */
-
-  rc = tdsqlite3_create_module(db, "fts3tokenize", &fts3tok_module, (void*)pHash);
-  return rc;
-}
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-
-/************** End of fts3_tokenize_vtab.c **********************************/
-/************** Begin file fts3_write.c **************************************/
-/*
-** 2009 Oct 23
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file is part of the SQLite FTS3 extension module. Specifically,
-** this file contains code to insert, update and delete rows from FTS3
-** tables. It also contains code to merge FTS3 b-tree segments. Some
-** of the sub-routines used to merge segments are also used by the query 
-** code in fts3.c.
-*/
-
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <string.h> */
-/* #include <assert.h> */
-/* #include <stdlib.h> */
-/* #include <stdio.h> */
-
-#define FTS_MAX_APPENDABLE_HEIGHT 16
-
-/*
-** When full-text index nodes are loaded from disk, the buffer that they
-** are loaded into has the following number of bytes of padding at the end 
-** of it. i.e. if a full-text index node is 900 bytes in size, then a buffer
-** of 920 bytes is allocated for it.
-**
-** This means that if we have a pointer into a buffer containing node data,
-** it is always safe to read up to two varints from it without risking an
-** overread, even if the node data is corrupted.
-*/
-#define FTS3_NODE_PADDING (FTS3_VARINT_MAX*2)
-
-/*
-** Under certain circumstances, b-tree nodes (doclists) can be loaded into
-** memory incrementally instead of all at once. This can be a big performance
-** win (reduced IO and CPU) if SQLite stops calling the virtual table xNext()
-** method before retrieving all query results (as may happen, for example,
-** if a query has a LIMIT clause).
-**
-** Incremental loading is used for b-tree nodes FTS3_NODE_CHUNK_THRESHOLD 
-** bytes and larger. Nodes are loaded in chunks of FTS3_NODE_CHUNKSIZE bytes.
-** The code is written so that the hard lower-limit for each of these values 
-** is 1. Clearly such small values would be inefficient, but can be useful 
-** for testing purposes.
-**
-** If this module is built with SQLITE_TEST defined, these constants may
-** be overridden at runtime for testing purposes. File fts3_test.c contains
-** a Tcl interface to read and write the values.
-*/
-#ifdef SQLITE_TEST
-int test_fts3_node_chunksize = (4*1024);
-int test_fts3_node_chunk_threshold = (4*1024)*4;
-# define FTS3_NODE_CHUNKSIZE       test_fts3_node_chunksize
-# define FTS3_NODE_CHUNK_THRESHOLD test_fts3_node_chunk_threshold
-#else
-# define FTS3_NODE_CHUNKSIZE (4*1024) 
-# define FTS3_NODE_CHUNK_THRESHOLD (FTS3_NODE_CHUNKSIZE*4)
-#endif
-
-/*
-** The values that may be meaningfully bound to the :1 parameter in
-** statements SQL_REPLACE_STAT and SQL_SELECT_STAT.
-*/
-#define FTS_STAT_DOCTOTAL      0
-#define FTS_STAT_INCRMERGEHINT 1
-#define FTS_STAT_AUTOINCRMERGE 2
-
-/*
-** If FTS_LOG_MERGES is defined, call tdsqlite3_log() to report each automatic
-** and incremental merge operation that takes place. This is used for 
-** debugging FTS only, it should not usually be turned on in production
-** systems.
-*/
-#ifdef FTS3_LOG_MERGES
-static void fts3LogMerge(int nMerge, tdsqlite3_int64 iAbsLevel){
-  tdsqlite3_log(SQLITE_OK, "%d-way merge from level %d", nMerge, (int)iAbsLevel);
-}
-#else
-#define fts3LogMerge(x, y)
-#endif
-
-
-typedef struct PendingList PendingList;
-typedef struct SegmentNode SegmentNode;
-typedef struct SegmentWriter SegmentWriter;
-
-/*
-** An instance of the following data structure is used to build doclists
-** incrementally. See function fts3PendingListAppend() for details.
-*/
-struct PendingList {
-  int nData;
-  char *aData;
-  int nSpace;
-  tdsqlite3_int64 iLastDocid;
-  tdsqlite3_int64 iLastCol;
-  tdsqlite3_int64 iLastPos;
-};
-
-
-/*
-** Each cursor has a (possibly empty) linked list of the following objects.
-*/
-struct Fts3DeferredToken {
-  Fts3PhraseToken *pToken;        /* Pointer to corresponding expr token */
-  int iCol;                       /* Column token must occur in */
-  Fts3DeferredToken *pNext;       /* Next in list of deferred tokens */
-  PendingList *pList;             /* Doclist is assembled here */
-};
-
-/*
-** An instance of this structure is used to iterate through the terms on
-** a contiguous set of segment b-tree leaf nodes. Although the details of
-** this structure are only manipulated by code in this file, opaque handles
-** of type Fts3SegReader* are also used by code in fts3.c to iterate through
-** terms when querying the full-text index. See functions:
-**
-**   tdsqlite3Fts3SegReaderNew()
-**   tdsqlite3Fts3SegReaderFree()
-**   tdsqlite3Fts3SegReaderIterate()
-**
-** Methods used to manipulate Fts3SegReader structures:
-**
-**   fts3SegReaderNext()
-**   fts3SegReaderFirstDocid()
-**   fts3SegReaderNextDocid()
-*/
-struct Fts3SegReader {
-  int iIdx;                       /* Index within level, or 0x7FFFFFFF for PT */
-  u8 bLookup;                     /* True for a lookup only */
-  u8 rootOnly;                    /* True for a root-only reader */
-
-  tdsqlite3_int64 iStartBlock;      /* Rowid of first leaf block to traverse */
-  tdsqlite3_int64 iLeafEndBlock;    /* Rowid of final leaf block to traverse */
-  tdsqlite3_int64 iEndBlock;        /* Rowid of final block in segment (or 0) */
-  tdsqlite3_int64 iCurrentBlock;    /* Current leaf block (or 0) */
-
-  char *aNode;                    /* Pointer to node data (or NULL) */
-  int nNode;                      /* Size of buffer at aNode (or 0) */
-  int nPopulate;                  /* If >0, bytes of buffer aNode[] loaded */
-  tdsqlite3_blob *pBlob;            /* If not NULL, blob handle to read node */
-
-  Fts3HashElem **ppNextElem;
-
-  /* Variables set by fts3SegReaderNext(). These may be read directly
-  ** by the caller. They are valid from the time SegmentReaderNew() returns
-  ** until SegmentReaderNext() returns something other than SQLITE_OK
-  ** (i.e. SQLITE_DONE).
-  */
-  int nTerm;                      /* Number of bytes in current term */
-  char *zTerm;                    /* Pointer to current term */
-  int nTermAlloc;                 /* Allocated size of zTerm buffer */
-  char *aDoclist;                 /* Pointer to doclist of current entry */
-  int nDoclist;                   /* Size of doclist in current entry */
-
-  /* The following variables are used by fts3SegReaderNextDocid() to iterate 
-  ** through the current doclist (aDoclist/nDoclist).
-  */
-  char *pOffsetList;
-  int nOffsetList;                /* For descending pending seg-readers only */
-  tdsqlite3_int64 iDocid;
-};
-
-#define fts3SegReaderIsPending(p) ((p)->ppNextElem!=0)
-#define fts3SegReaderIsRootOnly(p) ((p)->rootOnly!=0)
-
-/*
-** An instance of this structure is used to create a segment b-tree in the
-** database. The internal details of this type are only accessed by the
-** following functions:
-**
-**   fts3SegWriterAdd()
-**   fts3SegWriterFlush()
-**   fts3SegWriterFree()
-*/
-struct SegmentWriter {
-  SegmentNode *pTree;             /* Pointer to interior tree structure */
-  tdsqlite3_int64 iFirst;           /* First slot in %_segments written */
-  tdsqlite3_int64 iFree;            /* Next free slot in %_segments */
-  char *zTerm;                    /* Pointer to previous term buffer */
-  int nTerm;                      /* Number of bytes in zTerm */
-  int nMalloc;                    /* Size of malloc'd buffer at zMalloc */
-  char *zMalloc;                  /* Malloc'd space (possibly) used for zTerm */
-  int nSize;                      /* Size of allocation at aData */
-  int nData;                      /* Bytes of data in aData */
-  char *aData;                    /* Pointer to block from malloc() */
-  i64 nLeafData;                  /* Number of bytes of leaf data written */
-};
-
-/*
-** Type SegmentNode is used by the following three functions to create
-** the interior part of the segment b+-tree structures (everything except
-** the leaf nodes). These functions and type are only ever used by code
-** within the fts3SegWriterXXX() family of functions described above.
-**
-**   fts3NodeAddTerm()
-**   fts3NodeWrite()
-**   fts3NodeFree()
-**
-** When a b+tree is written to the database (either as a result of a merge
-** or the pending-terms table being flushed), leaves are written into the 
-** database file as soon as they are completely populated. The interior of
-** the tree is assembled in memory and written out only once all leaves have
-** been populated and stored. This is Ok, as the b+-tree fanout is usually
-** very large, meaning that the interior of the tree consumes relatively 
-** little memory.
-*/
-struct SegmentNode {
-  SegmentNode *pParent;           /* Parent node (or NULL for root node) */
-  SegmentNode *pRight;            /* Pointer to right-sibling */
-  SegmentNode *pLeftmost;         /* Pointer to left-most node of this depth */
-  int nEntry;                     /* Number of terms written to node so far */
-  char *zTerm;                    /* Pointer to previous term buffer */
-  int nTerm;                      /* Number of bytes in zTerm */
-  int nMalloc;                    /* Size of malloc'd buffer at zMalloc */
-  char *zMalloc;                  /* Malloc'd space (possibly) used for zTerm */
-  int nData;                      /* Bytes of valid data so far */
-  char *aData;                    /* Node data */
-};
-
-/*
-** Valid values for the second argument to fts3SqlStmt().
-*/
-#define SQL_DELETE_CONTENT             0
-#define SQL_IS_EMPTY                   1
-#define SQL_DELETE_ALL_CONTENT         2 
-#define SQL_DELETE_ALL_SEGMENTS        3
-#define SQL_DELETE_ALL_SEGDIR          4
-#define SQL_DELETE_ALL_DOCSIZE         5
-#define SQL_DELETE_ALL_STAT            6
-#define SQL_SELECT_CONTENT_BY_ROWID    7
-#define SQL_NEXT_SEGMENT_INDEX         8
-#define SQL_INSERT_SEGMENTS            9
-#define SQL_NEXT_SEGMENTS_ID          10
-#define SQL_INSERT_SEGDIR             11
-#define SQL_SELECT_LEVEL              12
-#define SQL_SELECT_LEVEL_RANGE        13
-#define SQL_SELECT_LEVEL_COUNT        14
-#define SQL_SELECT_SEGDIR_MAX_LEVEL   15
-#define SQL_DELETE_SEGDIR_LEVEL       16
-#define SQL_DELETE_SEGMENTS_RANGE     17
-#define SQL_CONTENT_INSERT            18
-#define SQL_DELETE_DOCSIZE            19
-#define SQL_REPLACE_DOCSIZE           20
-#define SQL_SELECT_DOCSIZE            21
-#define SQL_SELECT_STAT               22
-#define SQL_REPLACE_STAT              23
-
-#define SQL_SELECT_ALL_PREFIX_LEVEL   24
-#define SQL_DELETE_ALL_TERMS_SEGDIR   25
-#define SQL_DELETE_SEGDIR_RANGE       26
-#define SQL_SELECT_ALL_LANGID         27
-#define SQL_FIND_MERGE_LEVEL          28
-#define SQL_MAX_LEAF_NODE_ESTIMATE    29
-#define SQL_DELETE_SEGDIR_ENTRY       30
-#define SQL_SHIFT_SEGDIR_ENTRY        31
-#define SQL_SELECT_SEGDIR             32
-#define SQL_CHOMP_SEGDIR              33
-#define SQL_SEGMENT_IS_APPENDABLE     34
-#define SQL_SELECT_INDEXES            35
-#define SQL_SELECT_MXLEVEL            36
-
-#define SQL_SELECT_LEVEL_RANGE2       37
-#define SQL_UPDATE_LEVEL_IDX          38
-#define SQL_UPDATE_LEVEL              39
-
-/*
-** This function is used to obtain an SQLite prepared statement handle
-** for the statement identified by the second argument. If successful,
-** *pp is set to the requested statement handle and SQLITE_OK returned.
-** Otherwise, an SQLite error code is returned and *pp is set to 0.
-**
-** If argument apVal is not NULL, then it must point to an array with
-** at least as many entries as the requested statement has bound 
-** parameters. The values are bound to the statements parameters before
-** returning.
-*/
-static int fts3SqlStmt(
-  Fts3Table *p,                   /* Virtual table handle */
-  int eStmt,                      /* One of the SQL_XXX constants above */
-  tdsqlite3_stmt **pp,              /* OUT: Statement handle */
-  tdsqlite3_value **apVal           /* Values to bind to statement */
-){
-  const char *azSql[] = {
-/* 0  */  "DELETE FROM %Q.'%q_content' WHERE rowid = ?",
-/* 1  */  "SELECT NOT EXISTS(SELECT docid FROM %Q.'%q_content' WHERE rowid!=?)",
-/* 2  */  "DELETE FROM %Q.'%q_content'",
-/* 3  */  "DELETE FROM %Q.'%q_segments'",
-/* 4  */  "DELETE FROM %Q.'%q_segdir'",
-/* 5  */  "DELETE FROM %Q.'%q_docsize'",
-/* 6  */  "DELETE FROM %Q.'%q_stat'",
-/* 7  */  "SELECT %s WHERE rowid=?",
-/* 8  */  "SELECT (SELECT max(idx) FROM %Q.'%q_segdir' WHERE level = ?) + 1",
-/* 9  */  "REPLACE INTO %Q.'%q_segments'(blockid, block) VALUES(?, ?)",
-/* 10 */  "SELECT coalesce((SELECT max(blockid) FROM %Q.'%q_segments') + 1, 1)",
-/* 11 */  "REPLACE INTO %Q.'%q_segdir' VALUES(?,?,?,?,?,?)",
-
-          /* Return segments in order from oldest to newest.*/ 
-/* 12 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
-            "FROM %Q.'%q_segdir' WHERE level = ? ORDER BY idx ASC",
-/* 13 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
-            "FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?"
-            "ORDER BY level DESC, idx ASC",
-
-/* 14 */  "SELECT count(*) FROM %Q.'%q_segdir' WHERE level = ?",
-/* 15 */  "SELECT max(level) FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?",
-
-/* 16 */  "DELETE FROM %Q.'%q_segdir' WHERE level = ?",
-/* 17 */  "DELETE FROM %Q.'%q_segments' WHERE blockid BETWEEN ? AND ?",
-/* 18 */  "INSERT INTO %Q.'%q_content' VALUES(%s)",
-/* 19 */  "DELETE FROM %Q.'%q_docsize' WHERE docid = ?",
-/* 20 */  "REPLACE INTO %Q.'%q_docsize' VALUES(?,?)",
-/* 21 */  "SELECT size FROM %Q.'%q_docsize' WHERE docid=?",
-/* 22 */  "SELECT value FROM %Q.'%q_stat' WHERE id=?",
-/* 23 */  "REPLACE INTO %Q.'%q_stat' VALUES(?,?)",
-/* 24 */  "",
-/* 25 */  "",
-
-/* 26 */ "DELETE FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?",
-/* 27 */ "SELECT ? UNION SELECT level / (1024 * ?) FROM %Q.'%q_segdir'",
-
-/* This statement is used to determine which level to read the input from
-** when performing an incremental merge. It returns the absolute level number
-** of the oldest level in the db that contains at least ? segments. Or,
-** if no level in the FTS index contains more than ? segments, the statement
-** returns zero rows.  */
-/* 28 */ "SELECT level, count(*) AS cnt FROM %Q.'%q_segdir' "
-         "  GROUP BY level HAVING cnt>=?"
-         "  ORDER BY (level %% 1024) ASC, 2 DESC LIMIT 1",
-
-/* Estimate the upper limit on the number of leaf nodes in a new segment
-** created by merging the oldest :2 segments from absolute level :1. See 
-** function tdsqlite3Fts3Incrmerge() for details.  */
-/* 29 */ "SELECT 2 * total(1 + leaves_end_block - start_block) "
-         "  FROM %Q.'%q_segdir' WHERE level = ? AND idx < ?",
-
-/* SQL_DELETE_SEGDIR_ENTRY
-**   Delete the %_segdir entry on absolute level :1 with index :2.  */
-/* 30 */ "DELETE FROM %Q.'%q_segdir' WHERE level = ? AND idx = ?",
-
-/* SQL_SHIFT_SEGDIR_ENTRY
-**   Modify the idx value for the segment with idx=:3 on absolute level :2
-**   to :1.  */
-/* 31 */ "UPDATE %Q.'%q_segdir' SET idx = ? WHERE level=? AND idx=?",
-
-/* SQL_SELECT_SEGDIR
-**   Read a single entry from the %_segdir table. The entry from absolute 
-**   level :1 with index value :2.  */
-/* 32 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
-            "FROM %Q.'%q_segdir' WHERE level = ? AND idx = ?",
-
-/* SQL_CHOMP_SEGDIR
-**   Update the start_block (:1) and root (:2) fields of the %_segdir
-**   entry located on absolute level :3 with index :4.  */
-/* 33 */  "UPDATE %Q.'%q_segdir' SET start_block = ?, root = ?"
-            "WHERE level = ? AND idx = ?",
-
-/* SQL_SEGMENT_IS_APPENDABLE
-**   Return a single row if the segment with end_block=? is appendable. Or
-**   no rows otherwise.  */
-/* 34 */  "SELECT 1 FROM %Q.'%q_segments' WHERE blockid=? AND block IS NULL",
-
-/* SQL_SELECT_INDEXES
-**   Return the list of valid segment indexes for absolute level ?  */
-/* 35 */  "SELECT idx FROM %Q.'%q_segdir' WHERE level=? ORDER BY 1 ASC",
-
-/* SQL_SELECT_MXLEVEL
-**   Return the largest relative level in the FTS index or indexes.  */
-/* 36 */  "SELECT max( level %% 1024 ) FROM %Q.'%q_segdir'",
-
-          /* Return segments in order from oldest to newest.*/ 
-/* 37 */  "SELECT level, idx, end_block "
-            "FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ? "
-            "ORDER BY level DESC, idx ASC",
-
-          /* Update statements used while promoting segments */
-/* 38 */  "UPDATE OR FAIL %Q.'%q_segdir' SET level=-1,idx=? "
-            "WHERE level=? AND idx=?",
-/* 39 */  "UPDATE OR FAIL %Q.'%q_segdir' SET level=? WHERE level=-1"
-
-  };
-  int rc = SQLITE_OK;
-  tdsqlite3_stmt *pStmt;
-
-  assert( SizeofArray(azSql)==SizeofArray(p->aStmt) );
-  assert( eStmt<SizeofArray(azSql) && eStmt>=0 );
-  
-  pStmt = p->aStmt[eStmt];
-  if( !pStmt ){
-    int f = SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_NO_VTAB;
-    char *zSql;
-    if( eStmt==SQL_CONTENT_INSERT ){
-      zSql = tdsqlite3_mprintf(azSql[eStmt], p->zDb, p->zName, p->zWriteExprlist);
-    }else if( eStmt==SQL_SELECT_CONTENT_BY_ROWID ){
-      f &= ~SQLITE_PREPARE_NO_VTAB;
-      zSql = tdsqlite3_mprintf(azSql[eStmt], p->zReadExprlist);
-    }else{
-      zSql = tdsqlite3_mprintf(azSql[eStmt], p->zDb, p->zName);
-    }
-    if( !zSql ){
-      rc = SQLITE_NOMEM;
-    }else{
-      rc = tdsqlite3_prepare_v3(p->db, zSql, -1, f, &pStmt, NULL);
-      tdsqlite3_free(zSql);
-      assert( rc==SQLITE_OK || pStmt==0 );
-      p->aStmt[eStmt] = pStmt;
-    }
-  }
-  if( apVal ){
-    int i;
-    int nParam = tdsqlite3_bind_parameter_count(pStmt);
-    for(i=0; rc==SQLITE_OK && i<nParam; i++){
-      rc = tdsqlite3_bind_value(pStmt, i+1, apVal[i]);
-    }
-  }
-  *pp = pStmt;
-  return rc;
-}
-
-
-static int fts3SelectDocsize(
-  Fts3Table *pTab,                /* FTS3 table handle */
-  tdsqlite3_int64 iDocid,           /* Docid to bind for SQL_SELECT_DOCSIZE */
-  tdsqlite3_stmt **ppStmt           /* OUT: Statement handle */
-){
-  tdsqlite3_stmt *pStmt = 0;        /* Statement requested from fts3SqlStmt() */
-  int rc;                         /* Return code */
-
-  rc = fts3SqlStmt(pTab, SQL_SELECT_DOCSIZE, &pStmt, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pStmt, 1, iDocid);
-    rc = tdsqlite3_step(pStmt);
-    if( rc!=SQLITE_ROW || tdsqlite3_column_type(pStmt, 0)!=SQLITE_BLOB ){
-      rc = tdsqlite3_reset(pStmt);
-      if( rc==SQLITE_OK ) rc = FTS_CORRUPT_VTAB;
-      pStmt = 0;
-    }else{
-      rc = SQLITE_OK;
-    }
-  }
-
-  *ppStmt = pStmt;
-  return rc;
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3SelectDoctotal(
-  Fts3Table *pTab,                /* Fts3 table handle */
-  tdsqlite3_stmt **ppStmt           /* OUT: Statement handle */
-){
-  tdsqlite3_stmt *pStmt = 0;
-  int rc;
-  rc = fts3SqlStmt(pTab, SQL_SELECT_STAT, &pStmt, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int(pStmt, 1, FTS_STAT_DOCTOTAL);
-    if( tdsqlite3_step(pStmt)!=SQLITE_ROW
-     || tdsqlite3_column_type(pStmt, 0)!=SQLITE_BLOB
-    ){
-      rc = tdsqlite3_reset(pStmt);
-      if( rc==SQLITE_OK ) rc = FTS_CORRUPT_VTAB;
-      pStmt = 0;
-    }
-  }
-  *ppStmt = pStmt;
-  return rc;
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3SelectDocsize(
-  Fts3Table *pTab,                /* Fts3 table handle */
-  tdsqlite3_int64 iDocid,           /* Docid to read size data for */
-  tdsqlite3_stmt **ppStmt           /* OUT: Statement handle */
-){
-  return fts3SelectDocsize(pTab, iDocid, ppStmt);
-}
-
-/*
-** Similar to fts3SqlStmt(). Except, after binding the parameters in
-** array apVal[] to the SQL statement identified by eStmt, the statement
-** is executed.
-**
-** Returns SQLITE_OK if the statement is successfully executed, or an
-** SQLite error code otherwise.
-*/
-static void fts3SqlExec(
-  int *pRC,                /* Result code */
-  Fts3Table *p,            /* The FTS3 table */
-  int eStmt,               /* Index of statement to evaluate */
-  tdsqlite3_value **apVal    /* Parameters to bind */
-){
-  tdsqlite3_stmt *pStmt;
-  int rc;
-  if( *pRC ) return;
-  rc = fts3SqlStmt(p, eStmt, &pStmt, apVal); 
-  if( rc==SQLITE_OK ){
-    tdsqlite3_step(pStmt);
-    rc = tdsqlite3_reset(pStmt);
-  }
-  *pRC = rc;
-}
-
-
-/*
-** This function ensures that the caller has obtained an exclusive 
-** shared-cache table-lock on the %_segdir table. This is required before 
-** writing data to the fts3 table. If this lock is not acquired first, then
-** the caller may end up attempting to take this lock as part of committing
-** a transaction, causing SQLite to return SQLITE_LOCKED or 
-** LOCKED_SHAREDCACHEto a COMMIT command.
-**
-** It is best to avoid this because if FTS3 returns any error when 
-** committing a transaction, the whole transaction will be rolled back. 
-** And this is not what users expect when they get SQLITE_LOCKED_SHAREDCACHE. 
-** It can still happen if the user locks the underlying tables directly 
-** instead of accessing them via FTS.
-*/
-static int fts3Writelock(Fts3Table *p){
-  int rc = SQLITE_OK;
-  
-  if( p->nPendingData==0 ){
-    tdsqlite3_stmt *pStmt;
-    rc = fts3SqlStmt(p, SQL_DELETE_SEGDIR_LEVEL, &pStmt, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_null(pStmt, 1);
-      tdsqlite3_step(pStmt);
-      rc = tdsqlite3_reset(pStmt);
-    }
-  }
-
-  return rc;
-}
-
-/*
-** FTS maintains a separate indexes for each language-id (a 32-bit integer).
-** Within each language id, a separate index is maintained to store the
-** document terms, and each configured prefix size (configured the FTS 
-** "prefix=" option). And each index consists of multiple levels ("relative
-** levels").
-**
-** All three of these values (the language id, the specific index and the
-** level within the index) are encoded in 64-bit integer values stored
-** in the %_segdir table on disk. This function is used to convert three
-** separate component values into the single 64-bit integer value that
-** can be used to query the %_segdir table.
-**
-** Specifically, each language-id/index combination is allocated 1024 
-** 64-bit integer level values ("absolute levels"). The main terms index
-** for language-id 0 is allocate values 0-1023. The first prefix index
-** (if any) for language-id 0 is allocated values 1024-2047. And so on.
-** Language 1 indexes are allocated immediately following language 0.
-**
-** So, for a system with nPrefix prefix indexes configured, the block of
-** absolute levels that corresponds to language-id iLangid and index 
-** iIndex starts at absolute level ((iLangid * (nPrefix+1) + iIndex) * 1024).
-*/
-static tdsqlite3_int64 getAbsoluteLevel(
-  Fts3Table *p,                   /* FTS3 table handle */
-  int iLangid,                    /* Language id */
-  int iIndex,                     /* Index in p->aIndex[] */
-  int iLevel                      /* Level of segments */
-){
-  tdsqlite3_int64 iBase;            /* First absolute level for iLangid/iIndex */
-  assert_fts3_nc( iLangid>=0 );
-  assert( p->nIndex>0 );
-  assert( iIndex>=0 && iIndex<p->nIndex );
-
-  iBase = ((tdsqlite3_int64)iLangid * p->nIndex + iIndex) * FTS3_SEGDIR_MAXLEVEL;
-  return iBase + iLevel;
-}
-
-/*
-** Set *ppStmt to a statement handle that may be used to iterate through
-** all rows in the %_segdir table, from oldest to newest. If successful,
-** return SQLITE_OK. If an error occurs while preparing the statement, 
-** return an SQLite error code.
-**
-** There is only ever one instance of this SQL statement compiled for
-** each FTS3 table.
-**
-** The statement returns the following columns from the %_segdir table:
-**
-**   0: idx
-**   1: start_block
-**   2: leaves_end_block
-**   3: end_block
-**   4: root
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3AllSegdirs(
-  Fts3Table *p,                   /* FTS3 table */
-  int iLangid,                    /* Language being queried */
-  int iIndex,                     /* Index for p->aIndex[] */
-  int iLevel,                     /* Level to select (relative level) */
-  tdsqlite3_stmt **ppStmt           /* OUT: Compiled statement */
-){
-  int rc;
-  tdsqlite3_stmt *pStmt = 0;
-
-  assert( iLevel==FTS3_SEGCURSOR_ALL || iLevel>=0 );
-  assert( iLevel<FTS3_SEGDIR_MAXLEVEL );
-  assert( iIndex>=0 && iIndex<p->nIndex );
-
-  if( iLevel<0 ){
-    /* "SELECT * FROM %_segdir WHERE level BETWEEN ? AND ? ORDER BY ..." */
-    rc = fts3SqlStmt(p, SQL_SELECT_LEVEL_RANGE, &pStmt, 0);
-    if( rc==SQLITE_OK ){ 
-      tdsqlite3_bind_int64(pStmt, 1, getAbsoluteLevel(p, iLangid, iIndex, 0));
-      tdsqlite3_bind_int64(pStmt, 2, 
-          getAbsoluteLevel(p, iLangid, iIndex, FTS3_SEGDIR_MAXLEVEL-1)
-      );
-    }
-  }else{
-    /* "SELECT * FROM %_segdir WHERE level = ? ORDER BY ..." */
-    rc = fts3SqlStmt(p, SQL_SELECT_LEVEL, &pStmt, 0);
-    if( rc==SQLITE_OK ){ 
-      tdsqlite3_bind_int64(pStmt, 1, getAbsoluteLevel(p, iLangid, iIndex,iLevel));
-    }
-  }
-  *ppStmt = pStmt;
-  return rc;
-}
-
-
-/*
-** Append a single varint to a PendingList buffer. SQLITE_OK is returned
-** if successful, or an SQLite error code otherwise.
-**
-** This function also serves to allocate the PendingList structure itself.
-** For example, to create a new PendingList structure containing two
-** varints:
-**
-**   PendingList *p = 0;
-**   fts3PendingListAppendVarint(&p, 1);
-**   fts3PendingListAppendVarint(&p, 2);
-*/
-static int fts3PendingListAppendVarint(
-  PendingList **pp,               /* IN/OUT: Pointer to PendingList struct */
-  tdsqlite3_int64 i                 /* Value to append to data */
-){
-  PendingList *p = *pp;
-
-  /* Allocate or grow the PendingList as required. */
-  if( !p ){
-    p = tdsqlite3_malloc(sizeof(*p) + 100);
-    if( !p ){
-      return SQLITE_NOMEM;
-    }
-    p->nSpace = 100;
-    p->aData = (char *)&p[1];
-    p->nData = 0;
-  }
-  else if( p->nData+FTS3_VARINT_MAX+1>p->nSpace ){
-    int nNew = p->nSpace * 2;
-    p = tdsqlite3_realloc(p, sizeof(*p) + nNew);
-    if( !p ){
-      tdsqlite3_free(*pp);
-      *pp = 0;
-      return SQLITE_NOMEM;
-    }
-    p->nSpace = nNew;
-    p->aData = (char *)&p[1];
-  }
-
-  /* Append the new serialized varint to the end of the list. */
-  p->nData += tdsqlite3Fts3PutVarint(&p->aData[p->nData], i);
-  p->aData[p->nData] = '\0';
-  *pp = p;
-  return SQLITE_OK;
-}
-
-/*
-** Add a docid/column/position entry to a PendingList structure. Non-zero
-** is returned if the structure is tdsqlite3_realloced as part of adding
-** the entry. Otherwise, zero.
-**
-** If an OOM error occurs, *pRc is set to SQLITE_NOMEM before returning.
-** Zero is always returned in this case. Otherwise, if no OOM error occurs,
-** it is set to SQLITE_OK.
-*/
-static int fts3PendingListAppend(
-  PendingList **pp,               /* IN/OUT: PendingList structure */
-  tdsqlite3_int64 iDocid,           /* Docid for entry to add */
-  tdsqlite3_int64 iCol,             /* Column for entry to add */
-  tdsqlite3_int64 iPos,             /* Position of term for entry to add */
-  int *pRc                        /* OUT: Return code */
-){
-  PendingList *p = *pp;
-  int rc = SQLITE_OK;
-
-  assert( !p || p->iLastDocid<=iDocid );
-
-  if( !p || p->iLastDocid!=iDocid ){
-    u64 iDelta = (u64)iDocid - (u64)(p ? p->iLastDocid : 0);
-    if( p ){
-      assert( p->nData<p->nSpace );
-      assert( p->aData[p->nData]==0 );
-      p->nData++;
-    }
-    if( SQLITE_OK!=(rc = fts3PendingListAppendVarint(&p, iDelta)) ){
-      goto pendinglistappend_out;
-    }
-    p->iLastCol = -1;
-    p->iLastPos = 0;
-    p->iLastDocid = iDocid;
-  }
-  if( iCol>0 && p->iLastCol!=iCol ){
-    if( SQLITE_OK!=(rc = fts3PendingListAppendVarint(&p, 1))
-     || SQLITE_OK!=(rc = fts3PendingListAppendVarint(&p, iCol))
-    ){
-      goto pendinglistappend_out;
-    }
-    p->iLastCol = iCol;
-    p->iLastPos = 0;
-  }
-  if( iCol>=0 ){
-    assert( iPos>p->iLastPos || (iPos==0 && p->iLastPos==0) );
-    rc = fts3PendingListAppendVarint(&p, 2+iPos-p->iLastPos);
-    if( rc==SQLITE_OK ){
-      p->iLastPos = iPos;
-    }
-  }
-
- pendinglistappend_out:
-  *pRc = rc;
-  if( p!=*pp ){
-    *pp = p;
-    return 1;
-  }
-  return 0;
-}
-
-/*
-** Free a PendingList object allocated by fts3PendingListAppend().
-*/
-static void fts3PendingListDelete(PendingList *pList){
-  tdsqlite3_free(pList);
-}
-
-/*
-** Add an entry to one of the pending-terms hash tables.
-*/
-static int fts3PendingTermsAddOne(
-  Fts3Table *p,
-  int iCol,
-  int iPos,
-  Fts3Hash *pHash,                /* Pending terms hash table to add entry to */
-  const char *zToken,
-  int nToken
-){
-  PendingList *pList;
-  int rc = SQLITE_OK;
-
-  pList = (PendingList *)fts3HashFind(pHash, zToken, nToken);
-  if( pList ){
-    p->nPendingData -= (pList->nData + nToken + sizeof(Fts3HashElem));
-  }
-  if( fts3PendingListAppend(&pList, p->iPrevDocid, iCol, iPos, &rc) ){
-    if( pList==fts3HashInsert(pHash, zToken, nToken, pList) ){
-      /* Malloc failed while inserting the new entry. This can only 
-      ** happen if there was no previous entry for this token.
-      */
-      assert( 0==fts3HashFind(pHash, zToken, nToken) );
-      tdsqlite3_free(pList);
-      rc = SQLITE_NOMEM;
-    }
-  }
-  if( rc==SQLITE_OK ){
-    p->nPendingData += (pList->nData + nToken + sizeof(Fts3HashElem));
-  }
-  return rc;
-}
-
-/*
-** Tokenize the nul-terminated string zText and add all tokens to the
-** pending-terms hash-table. The docid used is that currently stored in
-** p->iPrevDocid, and the column is specified by argument iCol.
-**
-** If successful, SQLITE_OK is returned. Otherwise, an SQLite error code.
-*/
-static int fts3PendingTermsAdd(
-  Fts3Table *p,                   /* Table into which text will be inserted */
-  int iLangid,                    /* Language id to use */
-  const char *zText,              /* Text of document to be inserted */
-  int iCol,                       /* Column into which text is being inserted */
-  u32 *pnWord                     /* IN/OUT: Incr. by number tokens inserted */
-){
-  int rc;
-  int iStart = 0;
-  int iEnd = 0;
-  int iPos = 0;
-  int nWord = 0;
-
-  char const *zToken;
-  int nToken = 0;
-
-  tdsqlite3_tokenizer *pTokenizer = p->pTokenizer;
-  tdsqlite3_tokenizer_module const *pModule = pTokenizer->pModule;
-  tdsqlite3_tokenizer_cursor *pCsr;
-  int (*xNext)(tdsqlite3_tokenizer_cursor *pCursor,
-      const char**,int*,int*,int*,int*);
-
-  assert( pTokenizer && pModule );
-
-  /* If the user has inserted a NULL value, this function may be called with
-  ** zText==0. In this case, add zero token entries to the hash table and 
-  ** return early. */
-  if( zText==0 ){
-    *pnWord = 0;
-    return SQLITE_OK;
-  }
-
-  rc = tdsqlite3Fts3OpenTokenizer(pTokenizer, iLangid, zText, -1, &pCsr);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  xNext = pModule->xNext;
-  while( SQLITE_OK==rc
-      && SQLITE_OK==(rc = xNext(pCsr, &zToken, &nToken, &iStart, &iEnd, &iPos))
-  ){
-    int i;
-    if( iPos>=nWord ) nWord = iPos+1;
-
-    /* Positions cannot be negative; we use -1 as a terminator internally.
-    ** Tokens must have a non-zero length.
-    */
-    if( iPos<0 || !zToken || nToken<=0 ){
-      rc = SQLITE_ERROR;
-      break;
-    }
-
-    /* Add the term to the terms index */
-    rc = fts3PendingTermsAddOne(
-        p, iCol, iPos, &p->aIndex[0].hPending, zToken, nToken
-    );
-    
-    /* Add the term to each of the prefix indexes that it is not too 
-    ** short for. */
-    for(i=1; rc==SQLITE_OK && i<p->nIndex; i++){
-      struct Fts3Index *pIndex = &p->aIndex[i];
-      if( nToken<pIndex->nPrefix ) continue;
-      rc = fts3PendingTermsAddOne(
-          p, iCol, iPos, &pIndex->hPending, zToken, pIndex->nPrefix
-      );
-    }
-  }
-
-  pModule->xClose(pCsr);
-  *pnWord += nWord;
-  return (rc==SQLITE_DONE ? SQLITE_OK : rc);
-}
-
-/* 
-** Calling this function indicates that subsequent calls to 
-** fts3PendingTermsAdd() are to add term/position-list pairs for the
-** contents of the document with docid iDocid.
-*/
-static int fts3PendingTermsDocid(
-  Fts3Table *p,                   /* Full-text table handle */
-  int bDelete,                    /* True if this op is a delete */
-  int iLangid,                    /* Language id of row being written */
-  sqlite_int64 iDocid             /* Docid of row being written */
-){
-  assert( iLangid>=0 );
-  assert( bDelete==1 || bDelete==0 );
-
-  /* TODO(shess) Explore whether partially flushing the buffer on
-  ** forced-flush would provide better performance.  I suspect that if
-  ** we ordered the doclists by size and flushed the largest until the
-  ** buffer was half empty, that would let the less frequent terms
-  ** generate longer doclists.
-  */
-  if( iDocid<p->iPrevDocid 
-   || (iDocid==p->iPrevDocid && p->bPrevDelete==0)
-   || p->iPrevLangid!=iLangid
-   || p->nPendingData>p->nMaxPendingData 
-  ){
-    int rc = tdsqlite3Fts3PendingTermsFlush(p);
-    if( rc!=SQLITE_OK ) return rc;
-  }
-  p->iPrevDocid = iDocid;
-  p->iPrevLangid = iLangid;
-  p->bPrevDelete = bDelete;
-  return SQLITE_OK;
-}
-
-/*
-** Discard the contents of the pending-terms hash tables. 
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3PendingTermsClear(Fts3Table *p){
-  int i;
-  for(i=0; i<p->nIndex; i++){
-    Fts3HashElem *pElem;
-    Fts3Hash *pHash = &p->aIndex[i].hPending;
-    for(pElem=fts3HashFirst(pHash); pElem; pElem=fts3HashNext(pElem)){
-      PendingList *pList = (PendingList *)fts3HashData(pElem);
-      fts3PendingListDelete(pList);
-    }
-    fts3HashClear(pHash);
-  }
-  p->nPendingData = 0;
-}
-
-/*
-** This function is called by the xUpdate() method as part of an INSERT
-** operation. It adds entries for each term in the new record to the
-** pendingTerms hash table.
-**
-** Argument apVal is the same as the similarly named argument passed to
-** fts3InsertData(). Parameter iDocid is the docid of the new row.
-*/
-static int fts3InsertTerms(
-  Fts3Table *p, 
-  int iLangid, 
-  tdsqlite3_value **apVal, 
-  u32 *aSz
-){
-  int i;                          /* Iterator variable */
-  for(i=2; i<p->nColumn+2; i++){
-    int iCol = i-2;
-    if( p->abNotindexed[iCol]==0 ){
-      const char *zText = (const char *)tdsqlite3_value_text(apVal[i]);
-      int rc = fts3PendingTermsAdd(p, iLangid, zText, iCol, &aSz[iCol]);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-      aSz[p->nColumn] += tdsqlite3_value_bytes(apVal[i]);
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** This function is called by the xUpdate() method for an INSERT operation.
-** The apVal parameter is passed a copy of the apVal argument passed by
-** SQLite to the xUpdate() method. i.e:
-**
-**   apVal[0]                Not used for INSERT.
-**   apVal[1]                rowid
-**   apVal[2]                Left-most user-defined column
-**   ...
-**   apVal[p->nColumn+1]     Right-most user-defined column
-**   apVal[p->nColumn+2]     Hidden column with same name as table
-**   apVal[p->nColumn+3]     Hidden "docid" column (alias for rowid)
-**   apVal[p->nColumn+4]     Hidden languageid column
-*/
-static int fts3InsertData(
-  Fts3Table *p,                   /* Full-text table */
-  tdsqlite3_value **apVal,          /* Array of values to insert */
-  tdsqlite3_int64 *piDocid          /* OUT: Docid for row just inserted */
-){
-  int rc;                         /* Return code */
-  tdsqlite3_stmt *pContentInsert;   /* INSERT INTO %_content VALUES(...) */
-
-  if( p->zContentTbl ){
-    tdsqlite3_value *pRowid = apVal[p->nColumn+3];
-    if( tdsqlite3_value_type(pRowid)==SQLITE_NULL ){
-      pRowid = apVal[1];
-    }
-    if( tdsqlite3_value_type(pRowid)!=SQLITE_INTEGER ){
-      return SQLITE_CONSTRAINT;
-    }
-    *piDocid = tdsqlite3_value_int64(pRowid);
-    return SQLITE_OK;
-  }
-
-  /* Locate the statement handle used to insert data into the %_content
-  ** table. The SQL for this statement is:
-  **
-  **   INSERT INTO %_content VALUES(?, ?, ?, ...)
-  **
-  ** The statement features N '?' variables, where N is the number of user
-  ** defined columns in the FTS3 table, plus one for the docid field.
-  */
-  rc = fts3SqlStmt(p, SQL_CONTENT_INSERT, &pContentInsert, &apVal[1]);
-  if( rc==SQLITE_OK && p->zLanguageid ){
-    rc = tdsqlite3_bind_int(
-        pContentInsert, p->nColumn+2, 
-        tdsqlite3_value_int(apVal[p->nColumn+4])
-    );
-  }
-  if( rc!=SQLITE_OK ) return rc;
-
-  /* There is a quirk here. The users INSERT statement may have specified
-  ** a value for the "rowid" field, for the "docid" field, or for both.
-  ** Which is a problem, since "rowid" and "docid" are aliases for the
-  ** same value. For example:
-  **
-  **   INSERT INTO fts3tbl(rowid, docid) VALUES(1, 2);
-  **
-  ** In FTS3, this is an error. It is an error to specify non-NULL values
-  ** for both docid and some other rowid alias.
-  */
-  if( SQLITE_NULL!=tdsqlite3_value_type(apVal[3+p->nColumn]) ){
-    if( SQLITE_NULL==tdsqlite3_value_type(apVal[0])
-     && SQLITE_NULL!=tdsqlite3_value_type(apVal[1])
-    ){
-      /* A rowid/docid conflict. */
-      return SQLITE_ERROR;
-    }
-    rc = tdsqlite3_bind_value(pContentInsert, 1, apVal[3+p->nColumn]);
-    if( rc!=SQLITE_OK ) return rc;
-  }
-
-  /* Execute the statement to insert the record. Set *piDocid to the 
-  ** new docid value. 
-  */
-  tdsqlite3_step(pContentInsert);
-  rc = tdsqlite3_reset(pContentInsert);
-
-  *piDocid = tdsqlite3_last_insert_rowid(p->db);
-  return rc;
-}
-
-
-
-/*
-** Remove all data from the FTS3 table. Clear the hash table containing
-** pending terms.
-*/
-static int fts3DeleteAll(Fts3Table *p, int bContent){
-  int rc = SQLITE_OK;             /* Return code */
-
-  /* Discard the contents of the pending-terms hash table. */
-  tdsqlite3Fts3PendingTermsClear(p);
-
-  /* Delete everything from the shadow tables. Except, leave %_content as
-  ** is if bContent is false.  */
-  assert( p->zContentTbl==0 || bContent==0 );
-  if( bContent ) fts3SqlExec(&rc, p, SQL_DELETE_ALL_CONTENT, 0);
-  fts3SqlExec(&rc, p, SQL_DELETE_ALL_SEGMENTS, 0);
-  fts3SqlExec(&rc, p, SQL_DELETE_ALL_SEGDIR, 0);
-  if( p->bHasDocsize ){
-    fts3SqlExec(&rc, p, SQL_DELETE_ALL_DOCSIZE, 0);
-  }
-  if( p->bHasStat ){
-    fts3SqlExec(&rc, p, SQL_DELETE_ALL_STAT, 0);
-  }
-  return rc;
-}
-
-/*
-**
-*/
-static int langidFromSelect(Fts3Table *p, tdsqlite3_stmt *pSelect){
-  int iLangid = 0;
-  if( p->zLanguageid ) iLangid = tdsqlite3_column_int(pSelect, p->nColumn+1);
-  return iLangid;
-}
-
-/*
-** The first element in the apVal[] array is assumed to contain the docid
-** (an integer) of a row about to be deleted. Remove all terms from the
-** full-text index.
-*/
-static void fts3DeleteTerms( 
-  int *pRC,               /* Result code */
-  Fts3Table *p,           /* The FTS table to delete from */
-  tdsqlite3_value *pRowid,  /* The docid to be deleted */
-  u32 *aSz,               /* Sizes of deleted document written here */
-  int *pbFound            /* OUT: Set to true if row really does exist */
-){
-  int rc;
-  tdsqlite3_stmt *pSelect;
-
-  assert( *pbFound==0 );
-  if( *pRC ) return;
-  rc = fts3SqlStmt(p, SQL_SELECT_CONTENT_BY_ROWID, &pSelect, &pRowid);
-  if( rc==SQLITE_OK ){
-    if( SQLITE_ROW==tdsqlite3_step(pSelect) ){
-      int i;
-      int iLangid = langidFromSelect(p, pSelect);
-      i64 iDocid = tdsqlite3_column_int64(pSelect, 0);
-      rc = fts3PendingTermsDocid(p, 1, iLangid, iDocid);
-      for(i=1; rc==SQLITE_OK && i<=p->nColumn; i++){
-        int iCol = i-1;
-        if( p->abNotindexed[iCol]==0 ){
-          const char *zText = (const char *)tdsqlite3_column_text(pSelect, i);
-          rc = fts3PendingTermsAdd(p, iLangid, zText, -1, &aSz[iCol]);
-          aSz[p->nColumn] += tdsqlite3_column_bytes(pSelect, i);
-        }
-      }
-      if( rc!=SQLITE_OK ){
-        tdsqlite3_reset(pSelect);
-        *pRC = rc;
-        return;
-      }
-      *pbFound = 1;
-    }
-    rc = tdsqlite3_reset(pSelect);
-  }else{
-    tdsqlite3_reset(pSelect);
-  }
-  *pRC = rc;
-}
-
-/*
-** Forward declaration to account for the circular dependency between
-** functions fts3SegmentMerge() and fts3AllocateSegdirIdx().
-*/
-static int fts3SegmentMerge(Fts3Table *, int, int, int);
-
-/* 
-** This function allocates a new level iLevel index in the segdir table.
-** Usually, indexes are allocated within a level sequentially starting
-** with 0, so the allocated index is one greater than the value returned
-** by:
-**
-**   SELECT max(idx) FROM %_segdir WHERE level = :iLevel
-**
-** However, if there are already FTS3_MERGE_COUNT indexes at the requested
-** level, they are merged into a single level (iLevel+1) segment and the 
-** allocated index is 0.
-**
-** If successful, *piIdx is set to the allocated index slot and SQLITE_OK
-** returned. Otherwise, an SQLite error code is returned.
-*/
-static int fts3AllocateSegdirIdx(
-  Fts3Table *p, 
-  int iLangid,                    /* Language id */
-  int iIndex,                     /* Index for p->aIndex */
-  int iLevel, 
-  int *piIdx
-){
-  int rc;                         /* Return Code */
-  tdsqlite3_stmt *pNextIdx;         /* Query for next idx at level iLevel */
-  int iNext = 0;                  /* Result of query pNextIdx */
-
-  assert( iLangid>=0 );
-  assert( p->nIndex>=1 );
-
-  /* Set variable iNext to the next available segdir index at level iLevel. */
-  rc = fts3SqlStmt(p, SQL_NEXT_SEGMENT_INDEX, &pNextIdx, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(
-        pNextIdx, 1, getAbsoluteLevel(p, iLangid, iIndex, iLevel)
-    );
-    if( SQLITE_ROW==tdsqlite3_step(pNextIdx) ){
-      iNext = tdsqlite3_column_int(pNextIdx, 0);
-    }
-    rc = tdsqlite3_reset(pNextIdx);
-  }
-
-  if( rc==SQLITE_OK ){
-    /* If iNext is FTS3_MERGE_COUNT, indicating that level iLevel is already
-    ** full, merge all segments in level iLevel into a single iLevel+1
-    ** segment and allocate (newly freed) index 0 at level iLevel. Otherwise,
-    ** if iNext is less than FTS3_MERGE_COUNT, allocate index iNext.
-    */
-    if( iNext>=MergeCount(p) ){
-      fts3LogMerge(16, getAbsoluteLevel(p, iLangid, iIndex, iLevel));
-      rc = fts3SegmentMerge(p, iLangid, iIndex, iLevel);
-      *piIdx = 0;
-    }else{
-      *piIdx = iNext;
-    }
-  }
-
-  return rc;
-}
-
-/*
-** The %_segments table is declared as follows:
-**
-**   CREATE TABLE %_segments(blockid INTEGER PRIMARY KEY, block BLOB)
-**
-** This function reads data from a single row of the %_segments table. The
-** specific row is identified by the iBlockid parameter. If paBlob is not
-** NULL, then a buffer is allocated using tdsqlite3_malloc() and populated
-** with the contents of the blob stored in the "block" column of the 
-** identified table row is. Whether or not paBlob is NULL, *pnBlob is set
-** to the size of the blob in bytes before returning.
-**
-** If an error occurs, or the table does not contain the specified row,
-** an SQLite error code is returned. Otherwise, SQLITE_OK is returned. If
-** paBlob is non-NULL, then it is the responsibility of the caller to
-** eventually free the returned buffer.
-**
-** This function may leave an open tdsqlite3_blob* handle in the
-** Fts3Table.pSegments variable. This handle is reused by subsequent calls
-** to this function. The handle may be closed by calling the
-** tdsqlite3Fts3SegmentsClose() function. Reusing a blob handle is a handy
-** performance improvement, but the blob handle should always be closed
-** before control is returned to the user (to prevent a lock being held
-** on the database file for longer than necessary). Thus, any virtual table
-** method (xFilter etc.) that may directly or indirectly call this function
-** must call tdsqlite3Fts3SegmentsClose() before returning.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3ReadBlock(
-  Fts3Table *p,                   /* FTS3 table handle */
-  tdsqlite3_int64 iBlockid,         /* Access the row with blockid=$iBlockid */
-  char **paBlob,                  /* OUT: Blob data in malloc'd buffer */
-  int *pnBlob,                    /* OUT: Size of blob data */
-  int *pnLoad                     /* OUT: Bytes actually loaded */
-){
-  int rc;                         /* Return code */
-
-  /* pnBlob must be non-NULL. paBlob may be NULL or non-NULL. */
-  assert( pnBlob );
-
-  if( p->pSegments ){
-    rc = tdsqlite3_blob_reopen(p->pSegments, iBlockid);
-  }else{
-    if( 0==p->zSegmentsTbl ){
-      p->zSegmentsTbl = tdsqlite3_mprintf("%s_segments", p->zName);
-      if( 0==p->zSegmentsTbl ) return SQLITE_NOMEM;
-    }
-    rc = tdsqlite3_blob_open(
-       p->db, p->zDb, p->zSegmentsTbl, "block", iBlockid, 0, &p->pSegments
-    );
-  }
-
-  if( rc==SQLITE_OK ){
-    int nByte = tdsqlite3_blob_bytes(p->pSegments);
-    *pnBlob = nByte;
-    if( paBlob ){
-      char *aByte = tdsqlite3_malloc(nByte + FTS3_NODE_PADDING);
-      if( !aByte ){
-        rc = SQLITE_NOMEM;
-      }else{
-        if( pnLoad && nByte>(FTS3_NODE_CHUNK_THRESHOLD) ){
-          nByte = FTS3_NODE_CHUNKSIZE;
-          *pnLoad = nByte;
-        }
-        rc = tdsqlite3_blob_read(p->pSegments, aByte, nByte, 0);
-        memset(&aByte[nByte], 0, FTS3_NODE_PADDING);
-        if( rc!=SQLITE_OK ){
-          tdsqlite3_free(aByte);
-          aByte = 0;
-        }
-      }
-      *paBlob = aByte;
-    }
-  }else if( rc==SQLITE_ERROR ){
-    rc = FTS_CORRUPT_VTAB;
-  }
-
-  return rc;
-}
-
-/*
-** Close the blob handle at p->pSegments, if it is open. See comments above
-** the tdsqlite3Fts3ReadBlock() function for details.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3SegmentsClose(Fts3Table *p){
-  tdsqlite3_blob_close(p->pSegments);
-  p->pSegments = 0;
-}
-    
-static int fts3SegReaderIncrRead(Fts3SegReader *pReader){
-  int nRead;                      /* Number of bytes to read */
-  int rc;                         /* Return code */
-
-  nRead = MIN(pReader->nNode - pReader->nPopulate, FTS3_NODE_CHUNKSIZE);
-  rc = tdsqlite3_blob_read(
-      pReader->pBlob, 
-      &pReader->aNode[pReader->nPopulate],
-      nRead,
-      pReader->nPopulate
-  );
-
-  if( rc==SQLITE_OK ){
-    pReader->nPopulate += nRead;
-    memset(&pReader->aNode[pReader->nPopulate], 0, FTS3_NODE_PADDING);
-    if( pReader->nPopulate==pReader->nNode ){
-      tdsqlite3_blob_close(pReader->pBlob);
-      pReader->pBlob = 0;
-      pReader->nPopulate = 0;
-    }
-  }
-  return rc;
-}
-
-static int fts3SegReaderRequire(Fts3SegReader *pReader, char *pFrom, int nByte){
-  int rc = SQLITE_OK;
-  assert( !pReader->pBlob 
-       || (pFrom>=pReader->aNode && pFrom<&pReader->aNode[pReader->nNode])
-  );
-  while( pReader->pBlob && rc==SQLITE_OK 
-     &&  (pFrom - pReader->aNode + nByte)>pReader->nPopulate
-  ){
-    rc = fts3SegReaderIncrRead(pReader);
-  }
-  return rc;
-}
-
-/*
-** Set an Fts3SegReader cursor to point at EOF.
-*/
-static void fts3SegReaderSetEof(Fts3SegReader *pSeg){
-  if( !fts3SegReaderIsRootOnly(pSeg) ){
-    tdsqlite3_free(pSeg->aNode);
-    tdsqlite3_blob_close(pSeg->pBlob);
-    pSeg->pBlob = 0;
-  }
-  pSeg->aNode = 0;
-}
-
-/*
-** Move the iterator passed as the first argument to the next term in the
-** segment. If successful, SQLITE_OK is returned. If there is no next term,
-** SQLITE_DONE. Otherwise, an SQLite error code.
-*/
-static int fts3SegReaderNext(
-  Fts3Table *p, 
-  Fts3SegReader *pReader,
-  int bIncr
-){
-  int rc;                         /* Return code of various sub-routines */
-  char *pNext;                    /* Cursor variable */
-  int nPrefix;                    /* Number of bytes in term prefix */
-  int nSuffix;                    /* Number of bytes in term suffix */
-
-  if( !pReader->aDoclist ){
-    pNext = pReader->aNode;
-  }else{
-    pNext = &pReader->aDoclist[pReader->nDoclist];
-  }
-
-  if( !pNext || pNext>=&pReader->aNode[pReader->nNode] ){
-
-    if( fts3SegReaderIsPending(pReader) ){
-      Fts3HashElem *pElem = *(pReader->ppNextElem);
-      tdsqlite3_free(pReader->aNode);
-      pReader->aNode = 0;
-      if( pElem ){
-        char *aCopy;
-        PendingList *pList = (PendingList *)fts3HashData(pElem);
-        int nCopy = pList->nData+1;
-        pReader->zTerm = (char *)fts3HashKey(pElem);
-        pReader->nTerm = fts3HashKeysize(pElem);
-        aCopy = (char*)tdsqlite3_malloc(nCopy);
-        if( !aCopy ) return SQLITE_NOMEM;
-        memcpy(aCopy, pList->aData, nCopy);
-        pReader->nNode = pReader->nDoclist = nCopy;
-        pReader->aNode = pReader->aDoclist = aCopy;
-        pReader->ppNextElem++;
-        assert( pReader->aNode );
-      }
-      return SQLITE_OK;
-    }
-
-    fts3SegReaderSetEof(pReader);
-
-    /* If iCurrentBlock>=iLeafEndBlock, this is an EOF condition. All leaf 
-    ** blocks have already been traversed.  */
-#ifdef CORRUPT_DB
-    assert( pReader->iCurrentBlock<=pReader->iLeafEndBlock || CORRUPT_DB );
-#endif
-    if( pReader->iCurrentBlock>=pReader->iLeafEndBlock ){
-      return SQLITE_OK;
-    }
-
-    rc = tdsqlite3Fts3ReadBlock(
-        p, ++pReader->iCurrentBlock, &pReader->aNode, &pReader->nNode, 
-        (bIncr ? &pReader->nPopulate : 0)
-    );
-    if( rc!=SQLITE_OK ) return rc;
-    assert( pReader->pBlob==0 );
-    if( bIncr && pReader->nPopulate<pReader->nNode ){
-      pReader->pBlob = p->pSegments;
-      p->pSegments = 0;
-    }
-    pNext = pReader->aNode;
-  }
-
-  assert( !fts3SegReaderIsPending(pReader) );
-
-  rc = fts3SegReaderRequire(pReader, pNext, FTS3_VARINT_MAX*2);
-  if( rc!=SQLITE_OK ) return rc;
-  
-  /* Because of the FTS3_NODE_PADDING bytes of padding, the following is 
-  ** safe (no risk of overread) even if the node data is corrupted. */
-  pNext += fts3GetVarint32(pNext, &nPrefix);
-  pNext += fts3GetVarint32(pNext, &nSuffix);
-  if( nSuffix<=0 
-   || (&pReader->aNode[pReader->nNode] - pNext)<nSuffix
-   || nPrefix>pReader->nTerm
-  ){
-    return FTS_CORRUPT_VTAB;
-  }
-
-  /* Both nPrefix and nSuffix were read by fts3GetVarint32() and so are
-  ** between 0 and 0x7FFFFFFF. But the sum of the two may cause integer
-  ** overflow - hence the (i64) casts.  */
-  if( (i64)nPrefix+nSuffix>(i64)pReader->nTermAlloc ){
-    i64 nNew = ((i64)nPrefix+nSuffix)*2;
-    char *zNew = tdsqlite3_realloc64(pReader->zTerm, nNew);
-    if( !zNew ){
-      return SQLITE_NOMEM;
-    }
-    pReader->zTerm = zNew;
-    pReader->nTermAlloc = nNew;
-  }
-
-  rc = fts3SegReaderRequire(pReader, pNext, nSuffix+FTS3_VARINT_MAX);
-  if( rc!=SQLITE_OK ) return rc;
-
-  memcpy(&pReader->zTerm[nPrefix], pNext, nSuffix);
-  pReader->nTerm = nPrefix+nSuffix;
-  pNext += nSuffix;
-  pNext += fts3GetVarint32(pNext, &pReader->nDoclist);
-  pReader->aDoclist = pNext;
-  pReader->pOffsetList = 0;
-
-  /* Check that the doclist does not appear to extend past the end of the
-  ** b-tree node. And that the final byte of the doclist is 0x00. If either 
-  ** of these statements is untrue, then the data structure is corrupt.
-  */
-  if( pReader->nDoclist > pReader->nNode-(pReader->aDoclist-pReader->aNode)
-   || (pReader->nPopulate==0 && pReader->aDoclist[pReader->nDoclist-1])
-  ){
-    return FTS_CORRUPT_VTAB;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Set the SegReader to point to the first docid in the doclist associated
-** with the current term.
-*/
-static int fts3SegReaderFirstDocid(Fts3Table *pTab, Fts3SegReader *pReader){
-  int rc = SQLITE_OK;
-  assert( pReader->aDoclist );
-  assert( !pReader->pOffsetList );
-  if( pTab->bDescIdx && fts3SegReaderIsPending(pReader) ){
-    u8 bEof = 0;
-    pReader->iDocid = 0;
-    pReader->nOffsetList = 0;
-    tdsqlite3Fts3DoclistPrev(0,
-        pReader->aDoclist, pReader->nDoclist, &pReader->pOffsetList, 
-        &pReader->iDocid, &pReader->nOffsetList, &bEof
-    );
-  }else{
-    rc = fts3SegReaderRequire(pReader, pReader->aDoclist, FTS3_VARINT_MAX);
-    if( rc==SQLITE_OK ){
-      int n = tdsqlite3Fts3GetVarint(pReader->aDoclist, &pReader->iDocid);
-      pReader->pOffsetList = &pReader->aDoclist[n];
-    }
-  }
-  return rc;
-}
-
-/*
-** Advance the SegReader to point to the next docid in the doclist
-** associated with the current term.
-** 
-** If arguments ppOffsetList and pnOffsetList are not NULL, then 
-** *ppOffsetList is set to point to the first column-offset list
-** in the doclist entry (i.e. immediately past the docid varint).
-** *pnOffsetList is set to the length of the set of column-offset
-** lists, not including the nul-terminator byte. For example:
-*/
-static int fts3SegReaderNextDocid(
-  Fts3Table *pTab,
-  Fts3SegReader *pReader,         /* Reader to advance to next docid */
-  char **ppOffsetList,            /* OUT: Pointer to current position-list */
-  int *pnOffsetList               /* OUT: Length of *ppOffsetList in bytes */
-){
-  int rc = SQLITE_OK;
-  char *p = pReader->pOffsetList;
-  char c = 0;
-
-  assert( p );
-
-  if( pTab->bDescIdx && fts3SegReaderIsPending(pReader) ){
-    /* A pending-terms seg-reader for an FTS4 table that uses order=desc.
-    ** Pending-terms doclists are always built up in ascending order, so
-    ** we have to iterate through them backwards here. */
-    u8 bEof = 0;
-    if( ppOffsetList ){
-      *ppOffsetList = pReader->pOffsetList;
-      *pnOffsetList = pReader->nOffsetList - 1;
-    }
-    tdsqlite3Fts3DoclistPrev(0,
-        pReader->aDoclist, pReader->nDoclist, &p, &pReader->iDocid,
-        &pReader->nOffsetList, &bEof
-    );
-    if( bEof ){
-      pReader->pOffsetList = 0;
-    }else{
-      pReader->pOffsetList = p;
-    }
-  }else{
-    char *pEnd = &pReader->aDoclist[pReader->nDoclist];
-
-    /* Pointer p currently points at the first byte of an offset list. The
-    ** following block advances it to point one byte past the end of
-    ** the same offset list. */
-    while( 1 ){
-  
-      /* The following line of code (and the "p++" below the while() loop) is
-      ** normally all that is required to move pointer p to the desired 
-      ** position. The exception is if this node is being loaded from disk
-      ** incrementally and pointer "p" now points to the first byte past
-      ** the populated part of pReader->aNode[].
-      */
-      while( *p | c ) c = *p++ & 0x80;
-      assert( *p==0 );
-  
-      if( pReader->pBlob==0 || p<&pReader->aNode[pReader->nPopulate] ) break;
-      rc = fts3SegReaderIncrRead(pReader);
-      if( rc!=SQLITE_OK ) return rc;
-    }
-    p++;
-  
-    /* If required, populate the output variables with a pointer to and the
-    ** size of the previous offset-list.
-    */
-    if( ppOffsetList ){
-      *ppOffsetList = pReader->pOffsetList;
-      *pnOffsetList = (int)(p - pReader->pOffsetList - 1);
-    }
-
-    /* List may have been edited in place by fts3EvalNearTrim() */
-    while( p<pEnd && *p==0 ) p++;
-  
-    /* If there are no more entries in the doclist, set pOffsetList to
-    ** NULL. Otherwise, set Fts3SegReader.iDocid to the next docid and
-    ** Fts3SegReader.pOffsetList to point to the next offset list before
-    ** returning.
-    */
-    if( p>=pEnd ){
-      pReader->pOffsetList = 0;
-    }else{
-      rc = fts3SegReaderRequire(pReader, p, FTS3_VARINT_MAX);
-      if( rc==SQLITE_OK ){
-        u64 iDelta;
-        pReader->pOffsetList = p + tdsqlite3Fts3GetVarintU(p, &iDelta);
-        if( pTab->bDescIdx ){
-          pReader->iDocid = (i64)((u64)pReader->iDocid - iDelta);
-        }else{
-          pReader->iDocid = (i64)((u64)pReader->iDocid + iDelta);
-        }
-      }
-    }
-  }
-
-  return rc;
-}
-
-
-SQLITE_PRIVATE int tdsqlite3Fts3MsrOvfl(
-  Fts3Cursor *pCsr, 
-  Fts3MultiSegReader *pMsr,
-  int *pnOvfl
-){
-  Fts3Table *p = (Fts3Table*)pCsr->base.pVtab;
-  int nOvfl = 0;
-  int ii;
-  int rc = SQLITE_OK;
-  int pgsz = p->nPgsz;
-
-  assert( p->bFts4 );
-  assert( pgsz>0 );
-
-  for(ii=0; rc==SQLITE_OK && ii<pMsr->nSegment; ii++){
-    Fts3SegReader *pReader = pMsr->apSegment[ii];
-    if( !fts3SegReaderIsPending(pReader) 
-     && !fts3SegReaderIsRootOnly(pReader) 
-    ){
-      tdsqlite3_int64 jj;
-      for(jj=pReader->iStartBlock; jj<=pReader->iLeafEndBlock; jj++){
-        int nBlob;
-        rc = tdsqlite3Fts3ReadBlock(p, jj, 0, &nBlob, 0);
-        if( rc!=SQLITE_OK ) break;
-        if( (nBlob+35)>pgsz ){
-          nOvfl += (nBlob + 34)/pgsz;
-        }
-      }
-    }
-  }
-  *pnOvfl = nOvfl;
-  return rc;
-}
-
-/*
-** Free all allocations associated with the iterator passed as the 
-** second argument.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3SegReaderFree(Fts3SegReader *pReader){
-  if( pReader ){
-    if( !fts3SegReaderIsPending(pReader) ){
-      tdsqlite3_free(pReader->zTerm);
-    }
-    if( !fts3SegReaderIsRootOnly(pReader) ){
-      tdsqlite3_free(pReader->aNode);
-    }
-    tdsqlite3_blob_close(pReader->pBlob);
-  }
-  tdsqlite3_free(pReader);
-}
-
-/*
-** Allocate a new SegReader object.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderNew(
-  int iAge,                       /* Segment "age". */
-  int bLookup,                    /* True for a lookup only */
-  tdsqlite3_int64 iStartLeaf,       /* First leaf to traverse */
-  tdsqlite3_int64 iEndLeaf,         /* Final leaf to traverse */
-  tdsqlite3_int64 iEndBlock,        /* Final block of segment */
-  const char *zRoot,              /* Buffer containing root node */
-  int nRoot,                      /* Size of buffer containing root node */
-  Fts3SegReader **ppReader        /* OUT: Allocated Fts3SegReader */
-){
-  Fts3SegReader *pReader;         /* Newly allocated SegReader object */
-  int nExtra = 0;                 /* Bytes to allocate segment root node */
-
-  assert( zRoot!=0 || nRoot==0 );
-#ifdef CORRUPT_DB
-  assert( zRoot!=0 || CORRUPT_DB );
-#endif
-
-  if( iStartLeaf==0 ){
-    if( iEndLeaf!=0 ) return FTS_CORRUPT_VTAB;
-    nExtra = nRoot + FTS3_NODE_PADDING;
-  }
-
-  pReader = (Fts3SegReader *)tdsqlite3_malloc(sizeof(Fts3SegReader) + nExtra);
-  if( !pReader ){
-    return SQLITE_NOMEM;
-  }
-  memset(pReader, 0, sizeof(Fts3SegReader));
-  pReader->iIdx = iAge;
-  pReader->bLookup = bLookup!=0;
-  pReader->iStartBlock = iStartLeaf;
-  pReader->iLeafEndBlock = iEndLeaf;
-  pReader->iEndBlock = iEndBlock;
-
-  if( nExtra ){
-    /* The entire segment is stored in the root node. */
-    pReader->aNode = (char *)&pReader[1];
-    pReader->rootOnly = 1;
-    pReader->nNode = nRoot;
-    if( nRoot ) memcpy(pReader->aNode, zRoot, nRoot);
-    memset(&pReader->aNode[nRoot], 0, FTS3_NODE_PADDING);
-  }else{
-    pReader->iCurrentBlock = iStartLeaf-1;
-  }
-  *ppReader = pReader;
-  return SQLITE_OK;
-}
-
-/*
-** This is a comparison function used as a qsort() callback when sorting
-** an array of pending terms by term. This occurs as part of flushing
-** the contents of the pending-terms hash table to the database.
-*/
-static int SQLITE_CDECL fts3CompareElemByTerm(
-  const void *lhs,
-  const void *rhs
-){
-  char *z1 = fts3HashKey(*(Fts3HashElem **)lhs);
-  char *z2 = fts3HashKey(*(Fts3HashElem **)rhs);
-  int n1 = fts3HashKeysize(*(Fts3HashElem **)lhs);
-  int n2 = fts3HashKeysize(*(Fts3HashElem **)rhs);
-
-  int n = (n1<n2 ? n1 : n2);
-  int c = memcmp(z1, z2, n);
-  if( c==0 ){
-    c = n1 - n2;
-  }
-  return c;
-}
-
-/*
-** This function is used to allocate an Fts3SegReader that iterates through
-** a subset of the terms stored in the Fts3Table.pendingTerms array.
-**
-** If the isPrefixIter parameter is zero, then the returned SegReader iterates
-** through each term in the pending-terms table. Or, if isPrefixIter is
-** non-zero, it iterates through each term and its prefixes. For example, if
-** the pending terms hash table contains the terms "sqlite", "mysql" and
-** "firebird", then the iterator visits the following 'terms' (in the order
-** shown):
-**
-**   f fi fir fire fireb firebi firebir firebird
-**   m my mys mysq mysql
-**   s sq sql sqli sqlit sqlite
-**
-** Whereas if isPrefixIter is zero, the terms visited are:
-**
-**   firebird mysql sqlite
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderPending(
-  Fts3Table *p,                   /* Virtual table handle */
-  int iIndex,                     /* Index for p->aIndex */
-  const char *zTerm,              /* Term to search for */
-  int nTerm,                      /* Size of buffer zTerm */
-  int bPrefix,                    /* True for a prefix iterator */
-  Fts3SegReader **ppReader        /* OUT: SegReader for pending-terms */
-){
-  Fts3SegReader *pReader = 0;     /* Fts3SegReader object to return */
-  Fts3HashElem *pE;               /* Iterator variable */
-  Fts3HashElem **aElem = 0;       /* Array of term hash entries to scan */
-  int nElem = 0;                  /* Size of array at aElem */
-  int rc = SQLITE_OK;             /* Return Code */
-  Fts3Hash *pHash;
-
-  pHash = &p->aIndex[iIndex].hPending;
-  if( bPrefix ){
-    int nAlloc = 0;               /* Size of allocated array at aElem */
-
-    for(pE=fts3HashFirst(pHash); pE; pE=fts3HashNext(pE)){
-      char *zKey = (char *)fts3HashKey(pE);
-      int nKey = fts3HashKeysize(pE);
-      if( nTerm==0 || (nKey>=nTerm && 0==memcmp(zKey, zTerm, nTerm)) ){
-        if( nElem==nAlloc ){
-          Fts3HashElem **aElem2;
-          nAlloc += 16;
-          aElem2 = (Fts3HashElem **)tdsqlite3_realloc(
-              aElem, nAlloc*sizeof(Fts3HashElem *)
-          );
-          if( !aElem2 ){
-            rc = SQLITE_NOMEM;
-            nElem = 0;
-            break;
-          }
-          aElem = aElem2;
-        }
-
-        aElem[nElem++] = pE;
-      }
-    }
-
-    /* If more than one term matches the prefix, sort the Fts3HashElem
-    ** objects in term order using qsort(). This uses the same comparison
-    ** callback as is used when flushing terms to disk.
-    */
-    if( nElem>1 ){
-      qsort(aElem, nElem, sizeof(Fts3HashElem *), fts3CompareElemByTerm);
-    }
-
-  }else{
-    /* The query is a simple term lookup that matches at most one term in
-    ** the index. All that is required is a straight hash-lookup. 
-    **
-    ** Because the stack address of pE may be accessed via the aElem pointer
-    ** below, the "Fts3HashElem *pE" must be declared so that it is valid
-    ** within this entire function, not just this "else{...}" block.
-    */
-    pE = fts3HashFindElem(pHash, zTerm, nTerm);
-    if( pE ){
-      aElem = &pE;
-      nElem = 1;
-    }
-  }
-
-  if( nElem>0 ){
-    tdsqlite3_int64 nByte;
-    nByte = sizeof(Fts3SegReader) + (nElem+1)*sizeof(Fts3HashElem *);
-    pReader = (Fts3SegReader *)tdsqlite3_malloc64(nByte);
-    if( !pReader ){
-      rc = SQLITE_NOMEM;
-    }else{
-      memset(pReader, 0, nByte);
-      pReader->iIdx = 0x7FFFFFFF;
-      pReader->ppNextElem = (Fts3HashElem **)&pReader[1];
-      memcpy(pReader->ppNextElem, aElem, nElem*sizeof(Fts3HashElem *));
-    }
-  }
-
-  if( bPrefix ){
-    tdsqlite3_free(aElem);
-  }
-  *ppReader = pReader;
-  return rc;
-}
-
-/*
-** Compare the entries pointed to by two Fts3SegReader structures. 
-** Comparison is as follows:
-**
-**   1) EOF is greater than not EOF.
-**
-**   2) The current terms (if any) are compared using memcmp(). If one
-**      term is a prefix of another, the longer term is considered the
-**      larger.
-**
-**   3) By segment age. An older segment is considered larger.
-*/
-static int fts3SegReaderCmp(Fts3SegReader *pLhs, Fts3SegReader *pRhs){
-  int rc;
-  if( pLhs->aNode && pRhs->aNode ){
-    int rc2 = pLhs->nTerm - pRhs->nTerm;
-    if( rc2<0 ){
-      rc = memcmp(pLhs->zTerm, pRhs->zTerm, pLhs->nTerm);
-    }else{
-      rc = memcmp(pLhs->zTerm, pRhs->zTerm, pRhs->nTerm);
-    }
-    if( rc==0 ){
-      rc = rc2;
-    }
-  }else{
-    rc = (pLhs->aNode==0) - (pRhs->aNode==0);
-  }
-  if( rc==0 ){
-    rc = pRhs->iIdx - pLhs->iIdx;
-  }
-  assert( rc!=0 );
-  return rc;
-}
-
-/*
-** A different comparison function for SegReader structures. In this
-** version, it is assumed that each SegReader points to an entry in
-** a doclist for identical terms. Comparison is made as follows:
-**
-**   1) EOF (end of doclist in this case) is greater than not EOF.
-**
-**   2) By current docid.
-**
-**   3) By segment age. An older segment is considered larger.
-*/
-static int fts3SegReaderDoclistCmp(Fts3SegReader *pLhs, Fts3SegReader *pRhs){
-  int rc = (pLhs->pOffsetList==0)-(pRhs->pOffsetList==0);
-  if( rc==0 ){
-    if( pLhs->iDocid==pRhs->iDocid ){
-      rc = pRhs->iIdx - pLhs->iIdx;
-    }else{
-      rc = (pLhs->iDocid > pRhs->iDocid) ? 1 : -1;
-    }
-  }
-  assert( pLhs->aNode && pRhs->aNode );
-  return rc;
-}
-static int fts3SegReaderDoclistCmpRev(Fts3SegReader *pLhs, Fts3SegReader *pRhs){
-  int rc = (pLhs->pOffsetList==0)-(pRhs->pOffsetList==0);
-  if( rc==0 ){
-    if( pLhs->iDocid==pRhs->iDocid ){
-      rc = pRhs->iIdx - pLhs->iIdx;
-    }else{
-      rc = (pLhs->iDocid < pRhs->iDocid) ? 1 : -1;
-    }
-  }
-  assert( pLhs->aNode && pRhs->aNode );
-  return rc;
-}
-
-/*
-** Compare the term that the Fts3SegReader object passed as the first argument
-** points to with the term specified by arguments zTerm and nTerm. 
-**
-** If the pSeg iterator is already at EOF, return 0. Otherwise, return
-** -ve if the pSeg term is less than zTerm/nTerm, 0 if the two terms are
-** equal, or +ve if the pSeg term is greater than zTerm/nTerm.
-*/
-static int fts3SegReaderTermCmp(
-  Fts3SegReader *pSeg,            /* Segment reader object */
-  const char *zTerm,              /* Term to compare to */
-  int nTerm                       /* Size of term zTerm in bytes */
-){
-  int res = 0;
-  if( pSeg->aNode ){
-    if( pSeg->nTerm>nTerm ){
-      res = memcmp(pSeg->zTerm, zTerm, nTerm);
-    }else{
-      res = memcmp(pSeg->zTerm, zTerm, pSeg->nTerm);
-    }
-    if( res==0 ){
-      res = pSeg->nTerm-nTerm;
-    }
-  }
-  return res;
-}
-
-/*
-** Argument apSegment is an array of nSegment elements. It is known that
-** the final (nSegment-nSuspect) members are already in sorted order
-** (according to the comparison function provided). This function shuffles
-** the array around until all entries are in sorted order.
-*/
-static void fts3SegReaderSort(
-  Fts3SegReader **apSegment,                     /* Array to sort entries of */
-  int nSegment,                                  /* Size of apSegment array */
-  int nSuspect,                                  /* Unsorted entry count */
-  int (*xCmp)(Fts3SegReader *, Fts3SegReader *)  /* Comparison function */
-){
-  int i;                          /* Iterator variable */
-
-  assert( nSuspect<=nSegment );
-
-  if( nSuspect==nSegment ) nSuspect--;
-  for(i=nSuspect-1; i>=0; i--){
-    int j;
-    for(j=i; j<(nSegment-1); j++){
-      Fts3SegReader *pTmp;
-      if( xCmp(apSegment[j], apSegment[j+1])<0 ) break;
-      pTmp = apSegment[j+1];
-      apSegment[j+1] = apSegment[j];
-      apSegment[j] = pTmp;
-    }
-  }
-
-#ifndef NDEBUG
-  /* Check that the list really is sorted now. */
-  for(i=0; i<(nSuspect-1); i++){
-    assert( xCmp(apSegment[i], apSegment[i+1])<0 );
-  }
-#endif
-}
-
-/* 
-** Insert a record into the %_segments table.
-*/
-static int fts3WriteSegment(
-  Fts3Table *p,                   /* Virtual table handle */
-  tdsqlite3_int64 iBlock,           /* Block id for new block */
-  char *z,                        /* Pointer to buffer containing block data */
-  int n                           /* Size of buffer z in bytes */
-){
-  tdsqlite3_stmt *pStmt;
-  int rc = fts3SqlStmt(p, SQL_INSERT_SEGMENTS, &pStmt, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pStmt, 1, iBlock);
-    tdsqlite3_bind_blob(pStmt, 2, z, n, SQLITE_STATIC);
-    tdsqlite3_step(pStmt);
-    rc = tdsqlite3_reset(pStmt);
-    tdsqlite3_bind_null(pStmt, 2);
-  }
-  return rc;
-}
-
-/*
-** Find the largest relative level number in the table. If successful, set
-** *pnMax to this value and return SQLITE_OK. Otherwise, if an error occurs,
-** set *pnMax to zero and return an SQLite error code.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3MaxLevel(Fts3Table *p, int *pnMax){
-  int rc;
-  int mxLevel = 0;
-  tdsqlite3_stmt *pStmt = 0;
-
-  rc = fts3SqlStmt(p, SQL_SELECT_MXLEVEL, &pStmt, 0);
-  if( rc==SQLITE_OK ){
-    if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      mxLevel = tdsqlite3_column_int(pStmt, 0);
-    }
-    rc = tdsqlite3_reset(pStmt);
-  }
-  *pnMax = mxLevel;
-  return rc;
-}
-
-/* 
-** Insert a record into the %_segdir table.
-*/
-static int fts3WriteSegdir(
-  Fts3Table *p,                   /* Virtual table handle */
-  tdsqlite3_int64 iLevel,           /* Value for "level" field (absolute level) */
-  int iIdx,                       /* Value for "idx" field */
-  tdsqlite3_int64 iStartBlock,      /* Value for "start_block" field */
-  tdsqlite3_int64 iLeafEndBlock,    /* Value for "leaves_end_block" field */
-  tdsqlite3_int64 iEndBlock,        /* Value for "end_block" field */
-  tdsqlite3_int64 nLeafData,        /* Bytes of leaf data in segment */
-  char *zRoot,                    /* Blob value for "root" field */
-  int nRoot                       /* Number of bytes in buffer zRoot */
-){
-  tdsqlite3_stmt *pStmt;
-  int rc = fts3SqlStmt(p, SQL_INSERT_SEGDIR, &pStmt, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pStmt, 1, iLevel);
-    tdsqlite3_bind_int(pStmt, 2, iIdx);
-    tdsqlite3_bind_int64(pStmt, 3, iStartBlock);
-    tdsqlite3_bind_int64(pStmt, 4, iLeafEndBlock);
-    if( nLeafData==0 ){
-      tdsqlite3_bind_int64(pStmt, 5, iEndBlock);
-    }else{
-      char *zEnd = tdsqlite3_mprintf("%lld %lld", iEndBlock, nLeafData);
-      if( !zEnd ) return SQLITE_NOMEM;
-      tdsqlite3_bind_text(pStmt, 5, zEnd, -1, tdsqlite3_free);
-    }
-    tdsqlite3_bind_blob(pStmt, 6, zRoot, nRoot, SQLITE_STATIC);
-    tdsqlite3_step(pStmt);
-    rc = tdsqlite3_reset(pStmt);
-    tdsqlite3_bind_null(pStmt, 6);
-  }
-  return rc;
-}
-
-/*
-** Return the size of the common prefix (if any) shared by zPrev and
-** zNext, in bytes. For example, 
-**
-**   fts3PrefixCompress("abc", 3, "abcdef", 6)   // returns 3
-**   fts3PrefixCompress("abX", 3, "abcdef", 6)   // returns 2
-**   fts3PrefixCompress("abX", 3, "Xbcdef", 6)   // returns 0
-*/
-static int fts3PrefixCompress(
-  const char *zPrev,              /* Buffer containing previous term */
-  int nPrev,                      /* Size of buffer zPrev in bytes */
-  const char *zNext,              /* Buffer containing next term */
-  int nNext                       /* Size of buffer zNext in bytes */
-){
-  int n;
-  UNUSED_PARAMETER(nNext);
-  for(n=0; n<nPrev && zPrev[n]==zNext[n]; n++);
-  return n;
-}
-
-/*
-** Add term zTerm to the SegmentNode. It is guaranteed that zTerm is larger
-** (according to memcmp) than the previous term.
-*/
-static int fts3NodeAddTerm(
-  Fts3Table *p,                   /* Virtual table handle */
-  SegmentNode **ppTree,           /* IN/OUT: SegmentNode handle */ 
-  int isCopyTerm,                 /* True if zTerm/nTerm is transient */
-  const char *zTerm,              /* Pointer to buffer containing term */
-  int nTerm                       /* Size of term in bytes */
-){
-  SegmentNode *pTree = *ppTree;
-  int rc;
-  SegmentNode *pNew;
-
-  /* First try to append the term to the current node. Return early if 
-  ** this is possible.
-  */
-  if( pTree ){
-    int nData = pTree->nData;     /* Current size of node in bytes */
-    int nReq = nData;             /* Required space after adding zTerm */
-    int nPrefix;                  /* Number of bytes of prefix compression */
-    int nSuffix;                  /* Suffix length */
-
-    nPrefix = fts3PrefixCompress(pTree->zTerm, pTree->nTerm, zTerm, nTerm);
-    nSuffix = nTerm-nPrefix;
-
-    /* If nSuffix is zero or less, then zTerm/nTerm must be a prefix of 
-    ** pWriter->zTerm/pWriter->nTerm. i.e. must be equal to or less than when
-    ** compared with BINARY collation. This indicates corruption.  */
-    if( nSuffix<=0 ) return FTS_CORRUPT_VTAB;
-
-    nReq += tdsqlite3Fts3VarintLen(nPrefix)+tdsqlite3Fts3VarintLen(nSuffix)+nSuffix;
-    if( nReq<=p->nNodeSize || !pTree->zTerm ){
-
-      if( nReq>p->nNodeSize ){
-        /* An unusual case: this is the first term to be added to the node
-        ** and the static node buffer (p->nNodeSize bytes) is not large
-        ** enough. Use a separately malloced buffer instead This wastes
-        ** p->nNodeSize bytes, but since this scenario only comes about when
-        ** the database contain two terms that share a prefix of almost 2KB, 
-        ** this is not expected to be a serious problem. 
-        */
-        assert( pTree->aData==(char *)&pTree[1] );
-        pTree->aData = (char *)tdsqlite3_malloc(nReq);
-        if( !pTree->aData ){
-          return SQLITE_NOMEM;
-        }
-      }
-
-      if( pTree->zTerm ){
-        /* There is no prefix-length field for first term in a node */
-        nData += tdsqlite3Fts3PutVarint(&pTree->aData[nData], nPrefix);
-      }
-
-      nData += tdsqlite3Fts3PutVarint(&pTree->aData[nData], nSuffix);
-      memcpy(&pTree->aData[nData], &zTerm[nPrefix], nSuffix);
-      pTree->nData = nData + nSuffix;
-      pTree->nEntry++;
-
-      if( isCopyTerm ){
-        if( pTree->nMalloc<nTerm ){
-          char *zNew = tdsqlite3_realloc(pTree->zMalloc, nTerm*2);
-          if( !zNew ){
-            return SQLITE_NOMEM;
-          }
-          pTree->nMalloc = nTerm*2;
-          pTree->zMalloc = zNew;
-        }
-        pTree->zTerm = pTree->zMalloc;
-        memcpy(pTree->zTerm, zTerm, nTerm);
-        pTree->nTerm = nTerm;
-      }else{
-        pTree->zTerm = (char *)zTerm;
-        pTree->nTerm = nTerm;
-      }
-      return SQLITE_OK;
-    }
-  }
-
-  /* If control flows to here, it was not possible to append zTerm to the
-  ** current node. Create a new node (a right-sibling of the current node).
-  ** If this is the first node in the tree, the term is added to it.
-  **
-  ** Otherwise, the term is not added to the new node, it is left empty for
-  ** now. Instead, the term is inserted into the parent of pTree. If pTree 
-  ** has no parent, one is created here.
-  */
-  pNew = (SegmentNode *)tdsqlite3_malloc(sizeof(SegmentNode) + p->nNodeSize);
-  if( !pNew ){
-    return SQLITE_NOMEM;
-  }
-  memset(pNew, 0, sizeof(SegmentNode));
-  pNew->nData = 1 + FTS3_VARINT_MAX;
-  pNew->aData = (char *)&pNew[1];
-
-  if( pTree ){
-    SegmentNode *pParent = pTree->pParent;
-    rc = fts3NodeAddTerm(p, &pParent, isCopyTerm, zTerm, nTerm);
-    if( pTree->pParent==0 ){
-      pTree->pParent = pParent;
-    }
-    pTree->pRight = pNew;
-    pNew->pLeftmost = pTree->pLeftmost;
-    pNew->pParent = pParent;
-    pNew->zMalloc = pTree->zMalloc;
-    pNew->nMalloc = pTree->nMalloc;
-    pTree->zMalloc = 0;
-  }else{
-    pNew->pLeftmost = pNew;
-    rc = fts3NodeAddTerm(p, &pNew, isCopyTerm, zTerm, nTerm); 
-  }
-
-  *ppTree = pNew;
-  return rc;
-}
-
-/*
-** Helper function for fts3NodeWrite().
-*/
-static int fts3TreeFinishNode(
-  SegmentNode *pTree, 
-  int iHeight, 
-  tdsqlite3_int64 iLeftChild
-){
-  int nStart;
-  assert( iHeight>=1 && iHeight<128 );
-  nStart = FTS3_VARINT_MAX - tdsqlite3Fts3VarintLen(iLeftChild);
-  pTree->aData[nStart] = (char)iHeight;
-  tdsqlite3Fts3PutVarint(&pTree->aData[nStart+1], iLeftChild);
-  return nStart;
-}
-
-/*
-** Write the buffer for the segment node pTree and all of its peers to the
-** database. Then call this function recursively to write the parent of 
-** pTree and its peers to the database. 
-**
-** Except, if pTree is a root node, do not write it to the database. Instead,
-** set output variables *paRoot and *pnRoot to contain the root node.
-**
-** If successful, SQLITE_OK is returned and output variable *piLast is
-** set to the largest blockid written to the database (or zero if no
-** blocks were written to the db). Otherwise, an SQLite error code is 
-** returned.
-*/
-static int fts3NodeWrite(
-  Fts3Table *p,                   /* Virtual table handle */
-  SegmentNode *pTree,             /* SegmentNode handle */
-  int iHeight,                    /* Height of this node in tree */
-  tdsqlite3_int64 iLeaf,            /* Block id of first leaf node */
-  tdsqlite3_int64 iFree,            /* Block id of next free slot in %_segments */
-  tdsqlite3_int64 *piLast,          /* OUT: Block id of last entry written */
-  char **paRoot,                  /* OUT: Data for root node */
-  int *pnRoot                     /* OUT: Size of root node in bytes */
-){
-  int rc = SQLITE_OK;
-
-  if( !pTree->pParent ){
-    /* Root node of the tree. */
-    int nStart = fts3TreeFinishNode(pTree, iHeight, iLeaf);
-    *piLast = iFree-1;
-    *pnRoot = pTree->nData - nStart;
-    *paRoot = &pTree->aData[nStart];
-  }else{
-    SegmentNode *pIter;
-    tdsqlite3_int64 iNextFree = iFree;
-    tdsqlite3_int64 iNextLeaf = iLeaf;
-    for(pIter=pTree->pLeftmost; pIter && rc==SQLITE_OK; pIter=pIter->pRight){
-      int nStart = fts3TreeFinishNode(pIter, iHeight, iNextLeaf);
-      int nWrite = pIter->nData - nStart;
-  
-      rc = fts3WriteSegment(p, iNextFree, &pIter->aData[nStart], nWrite);
-      iNextFree++;
-      iNextLeaf += (pIter->nEntry+1);
-    }
-    if( rc==SQLITE_OK ){
-      assert( iNextLeaf==iFree );
-      rc = fts3NodeWrite(
-          p, pTree->pParent, iHeight+1, iFree, iNextFree, piLast, paRoot, pnRoot
-      );
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Free all memory allocations associated with the tree pTree.
-*/
-static void fts3NodeFree(SegmentNode *pTree){
-  if( pTree ){
-    SegmentNode *p = pTree->pLeftmost;
-    fts3NodeFree(p->pParent);
-    while( p ){
-      SegmentNode *pRight = p->pRight;
-      if( p->aData!=(char *)&p[1] ){
-        tdsqlite3_free(p->aData);
-      }
-      assert( pRight==0 || p->zMalloc==0 );
-      tdsqlite3_free(p->zMalloc);
-      tdsqlite3_free(p);
-      p = pRight;
-    }
-  }
-}
-
-/*
-** Add a term to the segment being constructed by the SegmentWriter object
-** *ppWriter. When adding the first term to a segment, *ppWriter should
-** be passed NULL. This function will allocate a new SegmentWriter object
-** and return it via the input/output variable *ppWriter in this case.
-**
-** If successful, SQLITE_OK is returned. Otherwise, an SQLite error code.
-*/
-static int fts3SegWriterAdd(
-  Fts3Table *p,                   /* Virtual table handle */
-  SegmentWriter **ppWriter,       /* IN/OUT: SegmentWriter handle */ 
-  int isCopyTerm,                 /* True if buffer zTerm must be copied */
-  const char *zTerm,              /* Pointer to buffer containing term */
-  int nTerm,                      /* Size of term in bytes */
-  const char *aDoclist,           /* Pointer to buffer containing doclist */
-  int nDoclist                    /* Size of doclist in bytes */
-){
-  int nPrefix;                    /* Size of term prefix in bytes */
-  int nSuffix;                    /* Size of term suffix in bytes */
-  int nReq;                       /* Number of bytes required on leaf page */
-  int nData;
-  SegmentWriter *pWriter = *ppWriter;
-
-  if( !pWriter ){
-    int rc;
-    tdsqlite3_stmt *pStmt;
-
-    /* Allocate the SegmentWriter structure */
-    pWriter = (SegmentWriter *)tdsqlite3_malloc(sizeof(SegmentWriter));
-    if( !pWriter ) return SQLITE_NOMEM;
-    memset(pWriter, 0, sizeof(SegmentWriter));
-    *ppWriter = pWriter;
-
-    /* Allocate a buffer in which to accumulate data */
-    pWriter->aData = (char *)tdsqlite3_malloc(p->nNodeSize);
-    if( !pWriter->aData ) return SQLITE_NOMEM;
-    pWriter->nSize = p->nNodeSize;
-
-    /* Find the next free blockid in the %_segments table */
-    rc = fts3SqlStmt(p, SQL_NEXT_SEGMENTS_ID, &pStmt, 0);
-    if( rc!=SQLITE_OK ) return rc;
-    if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      pWriter->iFree = tdsqlite3_column_int64(pStmt, 0);
-      pWriter->iFirst = pWriter->iFree;
-    }
-    rc = tdsqlite3_reset(pStmt);
-    if( rc!=SQLITE_OK ) return rc;
-  }
-  nData = pWriter->nData;
-
-  nPrefix = fts3PrefixCompress(pWriter->zTerm, pWriter->nTerm, zTerm, nTerm);
-  nSuffix = nTerm-nPrefix;
-
-  /* If nSuffix is zero or less, then zTerm/nTerm must be a prefix of 
-  ** pWriter->zTerm/pWriter->nTerm. i.e. must be equal to or less than when
-  ** compared with BINARY collation. This indicates corruption.  */
-  if( nSuffix<=0 ) return FTS_CORRUPT_VTAB;
-
-  /* Figure out how many bytes are required by this new entry */
-  nReq = tdsqlite3Fts3VarintLen(nPrefix) +    /* varint containing prefix size */
-    tdsqlite3Fts3VarintLen(nSuffix) +         /* varint containing suffix size */
-    nSuffix +                               /* Term suffix */
-    tdsqlite3Fts3VarintLen(nDoclist) +        /* Size of doclist */
-    nDoclist;                               /* Doclist data */
-
-  if( nData>0 && nData+nReq>p->nNodeSize ){
-    int rc;
-
-    /* The current leaf node is full. Write it out to the database. */
-    if( pWriter->iFree==LARGEST_INT64 ) return FTS_CORRUPT_VTAB;
-    rc = fts3WriteSegment(p, pWriter->iFree++, pWriter->aData, nData);
-    if( rc!=SQLITE_OK ) return rc;
-    p->nLeafAdd++;
-
-    /* Add the current term to the interior node tree. The term added to
-    ** the interior tree must:
-    **
-    **   a) be greater than the largest term on the leaf node just written
-    **      to the database (still available in pWriter->zTerm), and
-    **
-    **   b) be less than or equal to the term about to be added to the new
-    **      leaf node (zTerm/nTerm).
-    **
-    ** In other words, it must be the prefix of zTerm 1 byte longer than
-    ** the common prefix (if any) of zTerm and pWriter->zTerm.
-    */
-    assert( nPrefix<nTerm );
-    rc = fts3NodeAddTerm(p, &pWriter->pTree, isCopyTerm, zTerm, nPrefix+1);
-    if( rc!=SQLITE_OK ) return rc;
-
-    nData = 0;
-    pWriter->nTerm = 0;
-
-    nPrefix = 0;
-    nSuffix = nTerm;
-    nReq = 1 +                              /* varint containing prefix size */
-      tdsqlite3Fts3VarintLen(nTerm) +         /* varint containing suffix size */
-      nTerm +                               /* Term suffix */
-      tdsqlite3Fts3VarintLen(nDoclist) +      /* Size of doclist */
-      nDoclist;                             /* Doclist data */
-  }
-
-  /* Increase the total number of bytes written to account for the new entry. */
-  pWriter->nLeafData += nReq;
-
-  /* If the buffer currently allocated is too small for this entry, realloc
-  ** the buffer to make it large enough.
-  */
-  if( nReq>pWriter->nSize ){
-    char *aNew = tdsqlite3_realloc(pWriter->aData, nReq);
-    if( !aNew ) return SQLITE_NOMEM;
-    pWriter->aData = aNew;
-    pWriter->nSize = nReq;
-  }
-  assert( nData+nReq<=pWriter->nSize );
-
-  /* Append the prefix-compressed term and doclist to the buffer. */
-  nData += tdsqlite3Fts3PutVarint(&pWriter->aData[nData], nPrefix);
-  nData += tdsqlite3Fts3PutVarint(&pWriter->aData[nData], nSuffix);
-  assert( nSuffix>0 );
-  memcpy(&pWriter->aData[nData], &zTerm[nPrefix], nSuffix);
-  nData += nSuffix;
-  nData += tdsqlite3Fts3PutVarint(&pWriter->aData[nData], nDoclist);
-  assert( nDoclist>0 );
-  memcpy(&pWriter->aData[nData], aDoclist, nDoclist);
-  pWriter->nData = nData + nDoclist;
-
-  /* Save the current term so that it can be used to prefix-compress the next.
-  ** If the isCopyTerm parameter is true, then the buffer pointed to by
-  ** zTerm is transient, so take a copy of the term data. Otherwise, just
-  ** store a copy of the pointer.
-  */
-  if( isCopyTerm ){
-    if( nTerm>pWriter->nMalloc ){
-      char *zNew = tdsqlite3_realloc(pWriter->zMalloc, nTerm*2);
-      if( !zNew ){
-        return SQLITE_NOMEM;
-      }
-      pWriter->nMalloc = nTerm*2;
-      pWriter->zMalloc = zNew;
-      pWriter->zTerm = zNew;
-    }
-    assert( pWriter->zTerm==pWriter->zMalloc );
-    assert( nTerm>0 );
-    memcpy(pWriter->zTerm, zTerm, nTerm);
-  }else{
-    pWriter->zTerm = (char *)zTerm;
-  }
-  pWriter->nTerm = nTerm;
-
-  return SQLITE_OK;
-}
-
-/*
-** Flush all data associated with the SegmentWriter object pWriter to the
-** database. This function must be called after all terms have been added
-** to the segment using fts3SegWriterAdd(). If successful, SQLITE_OK is
-** returned. Otherwise, an SQLite error code.
-*/
-static int fts3SegWriterFlush(
-  Fts3Table *p,                   /* Virtual table handle */
-  SegmentWriter *pWriter,         /* SegmentWriter to flush to the db */
-  tdsqlite3_int64 iLevel,           /* Value for 'level' column of %_segdir */
-  int iIdx                        /* Value for 'idx' column of %_segdir */
-){
-  int rc;                         /* Return code */
-  if( pWriter->pTree ){
-    tdsqlite3_int64 iLast = 0;      /* Largest block id written to database */
-    tdsqlite3_int64 iLastLeaf;      /* Largest leaf block id written to db */
-    char *zRoot = NULL;           /* Pointer to buffer containing root node */
-    int nRoot = 0;                /* Size of buffer zRoot */
-
-    iLastLeaf = pWriter->iFree;
-    rc = fts3WriteSegment(p, pWriter->iFree++, pWriter->aData, pWriter->nData);
-    if( rc==SQLITE_OK ){
-      rc = fts3NodeWrite(p, pWriter->pTree, 1,
-          pWriter->iFirst, pWriter->iFree, &iLast, &zRoot, &nRoot);
-    }
-    if( rc==SQLITE_OK ){
-      rc = fts3WriteSegdir(p, iLevel, iIdx, 
-          pWriter->iFirst, iLastLeaf, iLast, pWriter->nLeafData, zRoot, nRoot);
-    }
-  }else{
-    /* The entire tree fits on the root node. Write it to the segdir table. */
-    rc = fts3WriteSegdir(p, iLevel, iIdx, 
-        0, 0, 0, pWriter->nLeafData, pWriter->aData, pWriter->nData);
-  }
-  p->nLeafAdd++;
-  return rc;
-}
-
-/*
-** Release all memory held by the SegmentWriter object passed as the 
-** first argument.
-*/
-static void fts3SegWriterFree(SegmentWriter *pWriter){
-  if( pWriter ){
-    tdsqlite3_free(pWriter->aData);
-    tdsqlite3_free(pWriter->zMalloc);
-    fts3NodeFree(pWriter->pTree);
-    tdsqlite3_free(pWriter);
-  }
-}
-
-/*
-** The first value in the apVal[] array is assumed to contain an integer.
-** This function tests if there exist any documents with docid values that
-** are different from that integer. i.e. if deleting the document with docid
-** pRowid would mean the FTS3 table were empty.
-**
-** If successful, *pisEmpty is set to true if the table is empty except for
-** document pRowid, or false otherwise, and SQLITE_OK is returned. If an
-** error occurs, an SQLite error code is returned.
-*/
-static int fts3IsEmpty(Fts3Table *p, tdsqlite3_value *pRowid, int *pisEmpty){
-  tdsqlite3_stmt *pStmt;
-  int rc;
-  if( p->zContentTbl ){
-    /* If using the content=xxx option, assume the table is never empty */
-    *pisEmpty = 0;
-    rc = SQLITE_OK;
-  }else{
-    rc = fts3SqlStmt(p, SQL_IS_EMPTY, &pStmt, &pRowid);
-    if( rc==SQLITE_OK ){
-      if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-        *pisEmpty = tdsqlite3_column_int(pStmt, 0);
-      }
-      rc = tdsqlite3_reset(pStmt);
-    }
-  }
-  return rc;
-}
-
-/*
-** Set *pnMax to the largest segment level in the database for the index
-** iIndex.
-**
-** Segment levels are stored in the 'level' column of the %_segdir table.
-**
-** Return SQLITE_OK if successful, or an SQLite error code if not.
-*/
-static int fts3SegmentMaxLevel(
-  Fts3Table *p, 
-  int iLangid,
-  int iIndex, 
-  tdsqlite3_int64 *pnMax
-){
-  tdsqlite3_stmt *pStmt;
-  int rc;
-  assert( iIndex>=0 && iIndex<p->nIndex );
-
-  /* Set pStmt to the compiled version of:
-  **
-  **   SELECT max(level) FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?
-  **
-  ** (1024 is actually the value of macro FTS3_SEGDIR_PREFIXLEVEL_STR).
-  */
-  rc = fts3SqlStmt(p, SQL_SELECT_SEGDIR_MAX_LEVEL, &pStmt, 0);
-  if( rc!=SQLITE_OK ) return rc;
-  tdsqlite3_bind_int64(pStmt, 1, getAbsoluteLevel(p, iLangid, iIndex, 0));
-  tdsqlite3_bind_int64(pStmt, 2, 
-      getAbsoluteLevel(p, iLangid, iIndex, FTS3_SEGDIR_MAXLEVEL-1)
-  );
-  if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-    *pnMax = tdsqlite3_column_int64(pStmt, 0);
-  }
-  return tdsqlite3_reset(pStmt);
-}
-
-/*
-** iAbsLevel is an absolute level that may be assumed to exist within
-** the database. This function checks if it is the largest level number
-** within its index. Assuming no error occurs, *pbMax is set to 1 if
-** iAbsLevel is indeed the largest level, or 0 otherwise, and SQLITE_OK
-** is returned. If an error occurs, an error code is returned and the
-** final value of *pbMax is undefined.
-*/
-static int fts3SegmentIsMaxLevel(Fts3Table *p, i64 iAbsLevel, int *pbMax){
-
-  /* Set pStmt to the compiled version of:
-  **
-  **   SELECT max(level) FROM %Q.'%q_segdir' WHERE level BETWEEN ? AND ?
-  **
-  ** (1024 is actually the value of macro FTS3_SEGDIR_PREFIXLEVEL_STR).
-  */
-  tdsqlite3_stmt *pStmt;
-  int rc = fts3SqlStmt(p, SQL_SELECT_SEGDIR_MAX_LEVEL, &pStmt, 0);
-  if( rc!=SQLITE_OK ) return rc;
-  tdsqlite3_bind_int64(pStmt, 1, iAbsLevel+1);
-  tdsqlite3_bind_int64(pStmt, 2, 
-      ((iAbsLevel/FTS3_SEGDIR_MAXLEVEL)+1) * FTS3_SEGDIR_MAXLEVEL
-  );
-
-  *pbMax = 0;
-  if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-    *pbMax = tdsqlite3_column_type(pStmt, 0)==SQLITE_NULL;
-  }
-  return tdsqlite3_reset(pStmt);
-}
-
-/*
-** Delete all entries in the %_segments table associated with the segment
-** opened with seg-reader pSeg. This function does not affect the contents
-** of the %_segdir table.
-*/
-static int fts3DeleteSegment(
-  Fts3Table *p,                   /* FTS table handle */
-  Fts3SegReader *pSeg             /* Segment to delete */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  if( pSeg->iStartBlock ){
-    tdsqlite3_stmt *pDelete;        /* SQL statement to delete rows */
-    rc = fts3SqlStmt(p, SQL_DELETE_SEGMENTS_RANGE, &pDelete, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int64(pDelete, 1, pSeg->iStartBlock);
-      tdsqlite3_bind_int64(pDelete, 2, pSeg->iEndBlock);
-      tdsqlite3_step(pDelete);
-      rc = tdsqlite3_reset(pDelete);
-    }
-  }
-  return rc;
-}
-
-/*
-** This function is used after merging multiple segments into a single large
-** segment to delete the old, now redundant, segment b-trees. Specifically,
-** it:
-** 
-**   1) Deletes all %_segments entries for the segments associated with 
-**      each of the SegReader objects in the array passed as the third 
-**      argument, and
-**
-**   2) deletes all %_segdir entries with level iLevel, or all %_segdir
-**      entries regardless of level if (iLevel<0).
-**
-** SQLITE_OK is returned if successful, otherwise an SQLite error code.
-*/
-static int fts3DeleteSegdir(
-  Fts3Table *p,                   /* Virtual table handle */
-  int iLangid,                    /* Language id */
-  int iIndex,                     /* Index for p->aIndex */
-  int iLevel,                     /* Level of %_segdir entries to delete */
-  Fts3SegReader **apSegment,      /* Array of SegReader objects */
-  int nReader                     /* Size of array apSegment */
-){
-  int rc = SQLITE_OK;             /* Return Code */
-  int i;                          /* Iterator variable */
-  tdsqlite3_stmt *pDelete = 0;      /* SQL statement to delete rows */
-
-  for(i=0; rc==SQLITE_OK && i<nReader; i++){
-    rc = fts3DeleteSegment(p, apSegment[i]);
-  }
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  assert( iLevel>=0 || iLevel==FTS3_SEGCURSOR_ALL );
-  if( iLevel==FTS3_SEGCURSOR_ALL ){
-    rc = fts3SqlStmt(p, SQL_DELETE_SEGDIR_RANGE, &pDelete, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int64(pDelete, 1, getAbsoluteLevel(p, iLangid, iIndex, 0));
-      tdsqlite3_bind_int64(pDelete, 2, 
-          getAbsoluteLevel(p, iLangid, iIndex, FTS3_SEGDIR_MAXLEVEL-1)
-      );
-    }
-  }else{
-    rc = fts3SqlStmt(p, SQL_DELETE_SEGDIR_LEVEL, &pDelete, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int64(
-          pDelete, 1, getAbsoluteLevel(p, iLangid, iIndex, iLevel)
-      );
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    tdsqlite3_step(pDelete);
-    rc = tdsqlite3_reset(pDelete);
-  }
-
-  return rc;
-}
-
-/*
-** When this function is called, buffer *ppList (size *pnList bytes) contains 
-** a position list that may (or may not) feature multiple columns. This
-** function adjusts the pointer *ppList and the length *pnList so that they
-** identify the subset of the position list that corresponds to column iCol.
-**
-** If there are no entries in the input position list for column iCol, then
-** *pnList is set to zero before returning.
-**
-** If parameter bZero is non-zero, then any part of the input list following
-** the end of the output list is zeroed before returning.
-*/
-static void fts3ColumnFilter(
-  int iCol,                       /* Column to filter on */
-  int bZero,                      /* Zero out anything following *ppList */
-  char **ppList,                  /* IN/OUT: Pointer to position list */
-  int *pnList                     /* IN/OUT: Size of buffer *ppList in bytes */
-){
-  char *pList = *ppList;
-  int nList = *pnList;
-  char *pEnd = &pList[nList];
-  int iCurrent = 0;
-  char *p = pList;
-
-  assert( iCol>=0 );
-  while( 1 ){
-    char c = 0;
-    while( p<pEnd && (c | *p)&0xFE ) c = *p++ & 0x80;
-  
-    if( iCol==iCurrent ){
-      nList = (int)(p - pList);
-      break;
-    }
-
-    nList -= (int)(p - pList);
-    pList = p;
-    if( nList<=0 ){
-      break;
-    }
-    p = &pList[1];
-    p += fts3GetVarint32(p, &iCurrent);
-  }
-
-  if( bZero && (pEnd - &pList[nList])>0){
-    memset(&pList[nList], 0, pEnd - &pList[nList]);
-  }
-  *ppList = pList;
-  *pnList = nList;
-}
-
-/*
-** Cache data in the Fts3MultiSegReader.aBuffer[] buffer (overwriting any
-** existing data). Grow the buffer if required.
-**
-** If successful, return SQLITE_OK. Otherwise, if an OOM error is encountered
-** trying to resize the buffer, return SQLITE_NOMEM.
-*/
-static int fts3MsrBufferData(
-  Fts3MultiSegReader *pMsr,       /* Multi-segment-reader handle */
-  char *pList,
-  int nList
-){
-  if( nList>pMsr->nBuffer ){
-    char *pNew;
-    pMsr->nBuffer = nList*2;
-    pNew = (char *)tdsqlite3_realloc(pMsr->aBuffer, pMsr->nBuffer);
-    if( !pNew ) return SQLITE_NOMEM;
-    pMsr->aBuffer = pNew;
-  }
-
-  assert( nList>0 );
-  memcpy(pMsr->aBuffer, pList, nList);
-  return SQLITE_OK;
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3MsrIncrNext(
-  Fts3Table *p,                   /* Virtual table handle */
-  Fts3MultiSegReader *pMsr,       /* Multi-segment-reader handle */
-  tdsqlite3_int64 *piDocid,         /* OUT: Docid value */
-  char **paPoslist,               /* OUT: Pointer to position list */
-  int *pnPoslist                  /* OUT: Size of position list in bytes */
-){
-  int nMerge = pMsr->nAdvance;
-  Fts3SegReader **apSegment = pMsr->apSegment;
-  int (*xCmp)(Fts3SegReader *, Fts3SegReader *) = (
-    p->bDescIdx ? fts3SegReaderDoclistCmpRev : fts3SegReaderDoclistCmp
-  );
-
-  if( nMerge==0 ){
-    *paPoslist = 0;
-    return SQLITE_OK;
-  }
-
-  while( 1 ){
-    Fts3SegReader *pSeg;
-    pSeg = pMsr->apSegment[0];
-
-    if( pSeg->pOffsetList==0 ){
-      *paPoslist = 0;
-      break;
-    }else{
-      int rc;
-      char *pList;
-      int nList;
-      int j;
-      tdsqlite3_int64 iDocid = apSegment[0]->iDocid;
-
-      rc = fts3SegReaderNextDocid(p, apSegment[0], &pList, &nList);
-      j = 1;
-      while( rc==SQLITE_OK 
-        && j<nMerge
-        && apSegment[j]->pOffsetList
-        && apSegment[j]->iDocid==iDocid
-      ){
-        rc = fts3SegReaderNextDocid(p, apSegment[j], 0, 0);
-        j++;
-      }
-      if( rc!=SQLITE_OK ) return rc;
-      fts3SegReaderSort(pMsr->apSegment, nMerge, j, xCmp);
-
-      if( nList>0 && fts3SegReaderIsPending(apSegment[0]) ){
-        rc = fts3MsrBufferData(pMsr, pList, nList+1);
-        if( rc!=SQLITE_OK ) return rc;
-        assert( (pMsr->aBuffer[nList] & 0xFE)==0x00 );
-        pList = pMsr->aBuffer;
-      }
-
-      if( pMsr->iColFilter>=0 ){
-        fts3ColumnFilter(pMsr->iColFilter, 1, &pList, &nList);
-      }
-
-      if( nList>0 ){
-        *paPoslist = pList;
-        *piDocid = iDocid;
-        *pnPoslist = nList;
-        break;
-      }
-    }
-  }
-
-  return SQLITE_OK;
-}
-
-static int fts3SegReaderStart(
-  Fts3Table *p,                   /* Virtual table handle */
-  Fts3MultiSegReader *pCsr,       /* Cursor object */
-  const char *zTerm,              /* Term searched for (or NULL) */
-  int nTerm                       /* Length of zTerm in bytes */
-){
-  int i;
-  int nSeg = pCsr->nSegment;
-
-  /* If the Fts3SegFilter defines a specific term (or term prefix) to search 
-  ** for, then advance each segment iterator until it points to a term of
-  ** equal or greater value than the specified term. This prevents many
-  ** unnecessary merge/sort operations for the case where single segment
-  ** b-tree leaf nodes contain more than one term.
-  */
-  for(i=0; pCsr->bRestart==0 && i<pCsr->nSegment; i++){
-    int res = 0;
-    Fts3SegReader *pSeg = pCsr->apSegment[i];
-    do {
-      int rc = fts3SegReaderNext(p, pSeg, 0);
-      if( rc!=SQLITE_OK ) return rc;
-    }while( zTerm && (res = fts3SegReaderTermCmp(pSeg, zTerm, nTerm))<0 );
-
-    if( pSeg->bLookup && res!=0 ){
-      fts3SegReaderSetEof(pSeg);
-    }
-  }
-  fts3SegReaderSort(pCsr->apSegment, nSeg, nSeg, fts3SegReaderCmp);
-
-  return SQLITE_OK;
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderStart(
-  Fts3Table *p,                   /* Virtual table handle */
-  Fts3MultiSegReader *pCsr,       /* Cursor object */
-  Fts3SegFilter *pFilter          /* Restrictions on range of iteration */
-){
-  pCsr->pFilter = pFilter;
-  return fts3SegReaderStart(p, pCsr, pFilter->zTerm, pFilter->nTerm);
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3MsrIncrStart(
-  Fts3Table *p,                   /* Virtual table handle */
-  Fts3MultiSegReader *pCsr,       /* Cursor object */
-  int iCol,                       /* Column to match on. */
-  const char *zTerm,              /* Term to iterate through a doclist for */
-  int nTerm                       /* Number of bytes in zTerm */
-){
-  int i;
-  int rc;
-  int nSegment = pCsr->nSegment;
-  int (*xCmp)(Fts3SegReader *, Fts3SegReader *) = (
-    p->bDescIdx ? fts3SegReaderDoclistCmpRev : fts3SegReaderDoclistCmp
-  );
-
-  assert( pCsr->pFilter==0 );
-  assert( zTerm && nTerm>0 );
-
-  /* Advance each segment iterator until it points to the term zTerm/nTerm. */
-  rc = fts3SegReaderStart(p, pCsr, zTerm, nTerm);
-  if( rc!=SQLITE_OK ) return rc;
-
-  /* Determine how many of the segments actually point to zTerm/nTerm. */
-  for(i=0; i<nSegment; i++){
-    Fts3SegReader *pSeg = pCsr->apSegment[i];
-    if( !pSeg->aNode || fts3SegReaderTermCmp(pSeg, zTerm, nTerm) ){
-      break;
-    }
-  }
-  pCsr->nAdvance = i;
-
-  /* Advance each of the segments to point to the first docid. */
-  for(i=0; i<pCsr->nAdvance; i++){
-    rc = fts3SegReaderFirstDocid(p, pCsr->apSegment[i]);
-    if( rc!=SQLITE_OK ) return rc;
-  }
-  fts3SegReaderSort(pCsr->apSegment, i, i, xCmp);
-
-  assert( iCol<0 || iCol<p->nColumn );
-  pCsr->iColFilter = iCol;
-
-  return SQLITE_OK;
-}
-
-/*
-** This function is called on a MultiSegReader that has been started using
-** tdsqlite3Fts3MsrIncrStart(). One or more calls to MsrIncrNext() may also
-** have been made. Calling this function puts the MultiSegReader in such
-** a state that if the next two calls are:
-**
-**   tdsqlite3Fts3SegReaderStart()
-**   tdsqlite3Fts3SegReaderStep()
-**
-** then the entire doclist for the term is available in 
-** MultiSegReader.aDoclist/nDoclist.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3MsrIncrRestart(Fts3MultiSegReader *pCsr){
-  int i;                          /* Used to iterate through segment-readers */
-
-  assert( pCsr->zTerm==0 );
-  assert( pCsr->nTerm==0 );
-  assert( pCsr->aDoclist==0 );
-  assert( pCsr->nDoclist==0 );
-
-  pCsr->nAdvance = 0;
-  pCsr->bRestart = 1;
-  for(i=0; i<pCsr->nSegment; i++){
-    pCsr->apSegment[i]->pOffsetList = 0;
-    pCsr->apSegment[i]->nOffsetList = 0;
-    pCsr->apSegment[i]->iDocid = 0;
-  }
-
-  return SQLITE_OK;
-}
-
-
-SQLITE_PRIVATE int tdsqlite3Fts3SegReaderStep(
-  Fts3Table *p,                   /* Virtual table handle */
-  Fts3MultiSegReader *pCsr        /* Cursor object */
-){
-  int rc = SQLITE_OK;
-
-  int isIgnoreEmpty =  (pCsr->pFilter->flags & FTS3_SEGMENT_IGNORE_EMPTY);
-  int isRequirePos =   (pCsr->pFilter->flags & FTS3_SEGMENT_REQUIRE_POS);
-  int isColFilter =    (pCsr->pFilter->flags & FTS3_SEGMENT_COLUMN_FILTER);
-  int isPrefix =       (pCsr->pFilter->flags & FTS3_SEGMENT_PREFIX);
-  int isScan =         (pCsr->pFilter->flags & FTS3_SEGMENT_SCAN);
-  int isFirst =        (pCsr->pFilter->flags & FTS3_SEGMENT_FIRST);
-
-  Fts3SegReader **apSegment = pCsr->apSegment;
-  int nSegment = pCsr->nSegment;
-  Fts3SegFilter *pFilter = pCsr->pFilter;
-  int (*xCmp)(Fts3SegReader *, Fts3SegReader *) = (
-    p->bDescIdx ? fts3SegReaderDoclistCmpRev : fts3SegReaderDoclistCmp
-  );
-
-  if( pCsr->nSegment==0 ) return SQLITE_OK;
-
-  do {
-    int nMerge;
-    int i;
-  
-    /* Advance the first pCsr->nAdvance entries in the apSegment[] array
-    ** forward. Then sort the list in order of current term again.  
-    */
-    for(i=0; i<pCsr->nAdvance; i++){
-      Fts3SegReader *pSeg = apSegment[i];
-      if( pSeg->bLookup ){
-        fts3SegReaderSetEof(pSeg);
-      }else{
-        rc = fts3SegReaderNext(p, pSeg, 0);
-      }
-      if( rc!=SQLITE_OK ) return rc;
-    }
-    fts3SegReaderSort(apSegment, nSegment, pCsr->nAdvance, fts3SegReaderCmp);
-    pCsr->nAdvance = 0;
-
-    /* If all the seg-readers are at EOF, we're finished. return SQLITE_OK. */
-    assert( rc==SQLITE_OK );
-    if( apSegment[0]->aNode==0 ) break;
-
-    pCsr->nTerm = apSegment[0]->nTerm;
-    pCsr->zTerm = apSegment[0]->zTerm;
-
-    /* If this is a prefix-search, and if the term that apSegment[0] points
-    ** to does not share a suffix with pFilter->zTerm/nTerm, then all 
-    ** required callbacks have been made. In this case exit early.
-    **
-    ** Similarly, if this is a search for an exact match, and the first term
-    ** of segment apSegment[0] is not a match, exit early.
-    */
-    if( pFilter->zTerm && !isScan ){
-      if( pCsr->nTerm<pFilter->nTerm 
-       || (!isPrefix && pCsr->nTerm>pFilter->nTerm)
-       || memcmp(pCsr->zTerm, pFilter->zTerm, pFilter->nTerm) 
-      ){
-        break;
-      }
-    }
-
-    nMerge = 1;
-    while( nMerge<nSegment 
-        && apSegment[nMerge]->aNode
-        && apSegment[nMerge]->nTerm==pCsr->nTerm 
-        && 0==memcmp(pCsr->zTerm, apSegment[nMerge]->zTerm, pCsr->nTerm)
-    ){
-      nMerge++;
-    }
-
-    assert( isIgnoreEmpty || (isRequirePos && !isColFilter) );
-    if( nMerge==1 
-     && !isIgnoreEmpty 
-     && !isFirst 
-     && (p->bDescIdx==0 || fts3SegReaderIsPending(apSegment[0])==0)
-    ){
-      pCsr->nDoclist = apSegment[0]->nDoclist;
-      if( fts3SegReaderIsPending(apSegment[0]) ){
-        rc = fts3MsrBufferData(pCsr, apSegment[0]->aDoclist, pCsr->nDoclist);
-        pCsr->aDoclist = pCsr->aBuffer;
-      }else{
-        pCsr->aDoclist = apSegment[0]->aDoclist;
-      }
-      if( rc==SQLITE_OK ) rc = SQLITE_ROW;
-    }else{
-      int nDoclist = 0;           /* Size of doclist */
-      tdsqlite3_int64 iPrev = 0;    /* Previous docid stored in doclist */
-
-      /* The current term of the first nMerge entries in the array
-      ** of Fts3SegReader objects is the same. The doclists must be merged
-      ** and a single term returned with the merged doclist.
-      */
-      for(i=0; i<nMerge; i++){
-        fts3SegReaderFirstDocid(p, apSegment[i]);
-      }
-      fts3SegReaderSort(apSegment, nMerge, nMerge, xCmp);
-      while( apSegment[0]->pOffsetList ){
-        int j;                    /* Number of segments that share a docid */
-        char *pList = 0;
-        int nList = 0;
-        int nByte;
-        tdsqlite3_int64 iDocid = apSegment[0]->iDocid;
-        fts3SegReaderNextDocid(p, apSegment[0], &pList, &nList);
-        j = 1;
-        while( j<nMerge
-            && apSegment[j]->pOffsetList
-            && apSegment[j]->iDocid==iDocid
-        ){
-          fts3SegReaderNextDocid(p, apSegment[j], 0, 0);
-          j++;
-        }
-
-        if( isColFilter ){
-          fts3ColumnFilter(pFilter->iCol, 0, &pList, &nList);
-        }
-
-        if( !isIgnoreEmpty || nList>0 ){
-
-          /* Calculate the 'docid' delta value to write into the merged 
-          ** doclist. */
-          tdsqlite3_int64 iDelta;
-          if( p->bDescIdx && nDoclist>0 ){
-            if( iPrev<=iDocid ) return FTS_CORRUPT_VTAB;
-            iDelta = (i64)((u64)iPrev - (u64)iDocid);
-          }else{
-            if( nDoclist>0 && iPrev>=iDocid ) return FTS_CORRUPT_VTAB;
-            iDelta = (i64)((u64)iDocid - (u64)iPrev);
-          }
-
-          nByte = tdsqlite3Fts3VarintLen(iDelta) + (isRequirePos?nList+1:0);
-          if( nDoclist+nByte>pCsr->nBuffer ){
-            char *aNew;
-            pCsr->nBuffer = (nDoclist+nByte)*2;
-            aNew = tdsqlite3_realloc(pCsr->aBuffer, pCsr->nBuffer);
-            if( !aNew ){
-              return SQLITE_NOMEM;
-            }
-            pCsr->aBuffer = aNew;
-          }
-
-          if( isFirst ){
-            char *a = &pCsr->aBuffer[nDoclist];
-            int nWrite;
-           
-            nWrite = tdsqlite3Fts3FirstFilter(iDelta, pList, nList, a);
-            if( nWrite ){
-              iPrev = iDocid;
-              nDoclist += nWrite;
-            }
-          }else{
-            nDoclist += tdsqlite3Fts3PutVarint(&pCsr->aBuffer[nDoclist], iDelta);
-            iPrev = iDocid;
-            if( isRequirePos ){
-              memcpy(&pCsr->aBuffer[nDoclist], pList, nList);
-              nDoclist += nList;
-              pCsr->aBuffer[nDoclist++] = '\0';
-            }
-          }
-        }
-
-        fts3SegReaderSort(apSegment, nMerge, j, xCmp);
-      }
-      if( nDoclist>0 ){
-        pCsr->aDoclist = pCsr->aBuffer;
-        pCsr->nDoclist = nDoclist;
-        rc = SQLITE_ROW;
-      }
-    }
-    pCsr->nAdvance = nMerge;
-  }while( rc==SQLITE_OK );
-
-  return rc;
-}
-
-
-SQLITE_PRIVATE void tdsqlite3Fts3SegReaderFinish(
-  Fts3MultiSegReader *pCsr       /* Cursor object */
-){
-  if( pCsr ){
-    int i;
-    for(i=0; i<pCsr->nSegment; i++){
-      tdsqlite3Fts3SegReaderFree(pCsr->apSegment[i]);
-    }
-    tdsqlite3_free(pCsr->apSegment);
-    tdsqlite3_free(pCsr->aBuffer);
-
-    pCsr->nSegment = 0;
-    pCsr->apSegment = 0;
-    pCsr->aBuffer = 0;
-  }
-}
-
-/*
-** Decode the "end_block" field, selected by column iCol of the SELECT 
-** statement passed as the first argument. 
-**
-** The "end_block" field may contain either an integer, or a text field
-** containing the text representation of two non-negative integers separated 
-** by one or more space (0x20) characters. In the first case, set *piEndBlock 
-** to the integer value and *pnByte to zero before returning. In the second, 
-** set *piEndBlock to the first value and *pnByte to the second.
-*/
-static void fts3ReadEndBlockField(
-  tdsqlite3_stmt *pStmt, 
-  int iCol, 
-  i64 *piEndBlock,
-  i64 *pnByte
-){
-  const unsigned char *zText = tdsqlite3_column_text(pStmt, iCol);
-  if( zText ){
-    int i;
-    int iMul = 1;
-    i64 iVal = 0;
-    for(i=0; zText[i]>='0' && zText[i]<='9'; i++){
-      iVal = iVal*10 + (zText[i] - '0');
-    }
-    *piEndBlock = iVal;
-    while( zText[i]==' ' ) i++;
-    iVal = 0;
-    if( zText[i]=='-' ){
-      i++;
-      iMul = -1;
-    }
-    for(/* no-op */; zText[i]>='0' && zText[i]<='9'; i++){
-      iVal = iVal*10 + (zText[i] - '0');
-    }
-    *pnByte = (iVal * (i64)iMul);
-  }
-}
-
-
-/*
-** A segment of size nByte bytes has just been written to absolute level
-** iAbsLevel. Promote any segments that should be promoted as a result.
-*/
-static int fts3PromoteSegments(
-  Fts3Table *p,                   /* FTS table handle */
-  tdsqlite3_int64 iAbsLevel,        /* Absolute level just updated */
-  tdsqlite3_int64 nByte             /* Size of new segment at iAbsLevel */
-){
-  int rc = SQLITE_OK;
-  tdsqlite3_stmt *pRange;
-
-  rc = fts3SqlStmt(p, SQL_SELECT_LEVEL_RANGE2, &pRange, 0);
-
-  if( rc==SQLITE_OK ){
-    int bOk = 0;
-    i64 iLast = (iAbsLevel/FTS3_SEGDIR_MAXLEVEL + 1) * FTS3_SEGDIR_MAXLEVEL - 1;
-    i64 nLimit = (nByte*3)/2;
-
-    /* Loop through all entries in the %_segdir table corresponding to 
-    ** segments in this index on levels greater than iAbsLevel. If there is
-    ** at least one such segment, and it is possible to determine that all 
-    ** such segments are smaller than nLimit bytes in size, they will be 
-    ** promoted to level iAbsLevel.  */
-    tdsqlite3_bind_int64(pRange, 1, iAbsLevel+1);
-    tdsqlite3_bind_int64(pRange, 2, iLast);
-    while( SQLITE_ROW==tdsqlite3_step(pRange) ){
-      i64 nSize = 0, dummy;
-      fts3ReadEndBlockField(pRange, 2, &dummy, &nSize);
-      if( nSize<=0 || nSize>nLimit ){
-        /* If nSize==0, then the %_segdir.end_block field does not not 
-        ** contain a size value. This happens if it was written by an
-        ** old version of FTS. In this case it is not possible to determine
-        ** the size of the segment, and so segment promotion does not
-        ** take place.  */
-        bOk = 0;
-        break;
-      }
-      bOk = 1;
-    }
-    rc = tdsqlite3_reset(pRange);
-
-    if( bOk ){
-      int iIdx = 0;
-      tdsqlite3_stmt *pUpdate1 = 0;
-      tdsqlite3_stmt *pUpdate2 = 0;
-
-      if( rc==SQLITE_OK ){
-        rc = fts3SqlStmt(p, SQL_UPDATE_LEVEL_IDX, &pUpdate1, 0);
-      }
-      if( rc==SQLITE_OK ){
-        rc = fts3SqlStmt(p, SQL_UPDATE_LEVEL, &pUpdate2, 0);
-      }
-
-      if( rc==SQLITE_OK ){
-
-        /* Loop through all %_segdir entries for segments in this index with
-        ** levels equal to or greater than iAbsLevel. As each entry is visited,
-        ** updated it to set (level = -1) and (idx = N), where N is 0 for the
-        ** oldest segment in the range, 1 for the next oldest, and so on.
-        **
-        ** In other words, move all segments being promoted to level -1,
-        ** setting the "idx" fields as appropriate to keep them in the same
-        ** order. The contents of level -1 (which is never used, except
-        ** transiently here), will be moved back to level iAbsLevel below.  */
-        tdsqlite3_bind_int64(pRange, 1, iAbsLevel);
-        while( SQLITE_ROW==tdsqlite3_step(pRange) ){
-          tdsqlite3_bind_int(pUpdate1, 1, iIdx++);
-          tdsqlite3_bind_int(pUpdate1, 2, tdsqlite3_column_int(pRange, 0));
-          tdsqlite3_bind_int(pUpdate1, 3, tdsqlite3_column_int(pRange, 1));
-          tdsqlite3_step(pUpdate1);
-          rc = tdsqlite3_reset(pUpdate1);
-          if( rc!=SQLITE_OK ){
-            tdsqlite3_reset(pRange);
-            break;
-          }
-        }
-      }
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3_reset(pRange);
-      }
-
-      /* Move level -1 to level iAbsLevel */
-      if( rc==SQLITE_OK ){
-        tdsqlite3_bind_int64(pUpdate2, 1, iAbsLevel);
-        tdsqlite3_step(pUpdate2);
-        rc = tdsqlite3_reset(pUpdate2);
-      }
-    }
-  }
-
-
-  return rc;
-}
-
-/*
-** Merge all level iLevel segments in the database into a single 
-** iLevel+1 segment. Or, if iLevel<0, merge all segments into a
-** single segment with a level equal to the numerically largest level 
-** currently present in the database.
-**
-** If this function is called with iLevel<0, but there is only one
-** segment in the database, SQLITE_DONE is returned immediately. 
-** Otherwise, if successful, SQLITE_OK is returned. If an error occurs, 
-** an SQLite error code is returned.
-*/
-static int fts3SegmentMerge(
-  Fts3Table *p, 
-  int iLangid,                    /* Language id to merge */
-  int iIndex,                     /* Index in p->aIndex[] to merge */
-  int iLevel                      /* Level to merge */
-){
-  int rc;                         /* Return code */
-  int iIdx = 0;                   /* Index of new segment */
-  tdsqlite3_int64 iNewLevel = 0;    /* Level/index to create new segment at */
-  SegmentWriter *pWriter = 0;     /* Used to write the new, merged, segment */
-  Fts3SegFilter filter;           /* Segment term filter condition */
-  Fts3MultiSegReader csr;         /* Cursor to iterate through level(s) */
-  int bIgnoreEmpty = 0;           /* True to ignore empty segments */
-  i64 iMaxLevel = 0;              /* Max level number for this index/langid */
-
-  assert( iLevel==FTS3_SEGCURSOR_ALL
-       || iLevel==FTS3_SEGCURSOR_PENDING
-       || iLevel>=0
-  );
-  assert( iLevel<FTS3_SEGDIR_MAXLEVEL );
-  assert( iIndex>=0 && iIndex<p->nIndex );
-
-  rc = tdsqlite3Fts3SegReaderCursor(p, iLangid, iIndex, iLevel, 0, 0, 1, 0, &csr);
-  if( rc!=SQLITE_OK || csr.nSegment==0 ) goto finished;
-
-  if( iLevel!=FTS3_SEGCURSOR_PENDING ){
-    rc = fts3SegmentMaxLevel(p, iLangid, iIndex, &iMaxLevel);
-    if( rc!=SQLITE_OK ) goto finished;
-  }
-
-  if( iLevel==FTS3_SEGCURSOR_ALL ){
-    /* This call is to merge all segments in the database to a single
-    ** segment. The level of the new segment is equal to the numerically
-    ** greatest segment level currently present in the database for this
-    ** index. The idx of the new segment is always 0.  */
-    if( csr.nSegment==1 && 0==fts3SegReaderIsPending(csr.apSegment[0]) ){
-      rc = SQLITE_DONE;
-      goto finished;
-    }
-    iNewLevel = iMaxLevel;
-    bIgnoreEmpty = 1;
-
-  }else{
-    /* This call is to merge all segments at level iLevel. find the next
-    ** available segment index at level iLevel+1. The call to
-    ** fts3AllocateSegdirIdx() will merge the segments at level iLevel+1 to 
-    ** a single iLevel+2 segment if necessary.  */
-    assert( FTS3_SEGCURSOR_PENDING==-1 );
-    iNewLevel = getAbsoluteLevel(p, iLangid, iIndex, iLevel+1);
-    rc = fts3AllocateSegdirIdx(p, iLangid, iIndex, iLevel+1, &iIdx);
-    bIgnoreEmpty = (iLevel!=FTS3_SEGCURSOR_PENDING) && (iNewLevel>iMaxLevel);
-  }
-  if( rc!=SQLITE_OK ) goto finished;
-
-  assert( csr.nSegment>0 );
-  assert_fts3_nc( iNewLevel>=getAbsoluteLevel(p, iLangid, iIndex, 0) );
-  assert_fts3_nc( 
-    iNewLevel<getAbsoluteLevel(p, iLangid, iIndex,FTS3_SEGDIR_MAXLEVEL) 
-  );
-
-  memset(&filter, 0, sizeof(Fts3SegFilter));
-  filter.flags = FTS3_SEGMENT_REQUIRE_POS;
-  filter.flags |= (bIgnoreEmpty ? FTS3_SEGMENT_IGNORE_EMPTY : 0);
-
-  rc = tdsqlite3Fts3SegReaderStart(p, &csr, &filter);
-  while( SQLITE_OK==rc ){
-    rc = tdsqlite3Fts3SegReaderStep(p, &csr);
-    if( rc!=SQLITE_ROW ) break;
-    rc = fts3SegWriterAdd(p, &pWriter, 1, 
-        csr.zTerm, csr.nTerm, csr.aDoclist, csr.nDoclist);
-  }
-  if( rc!=SQLITE_OK ) goto finished;
-  assert_fts3_nc( pWriter || bIgnoreEmpty );
-
-  if( iLevel!=FTS3_SEGCURSOR_PENDING ){
-    rc = fts3DeleteSegdir(
-        p, iLangid, iIndex, iLevel, csr.apSegment, csr.nSegment
-    );
-    if( rc!=SQLITE_OK ) goto finished;
-  }
-  if( pWriter ){
-    rc = fts3SegWriterFlush(p, pWriter, iNewLevel, iIdx);
-    if( rc==SQLITE_OK ){
-      if( iLevel==FTS3_SEGCURSOR_PENDING || iNewLevel<iMaxLevel ){
-        rc = fts3PromoteSegments(p, iNewLevel, pWriter->nLeafData);
-      }
-    }
-  }
-
- finished:
-  fts3SegWriterFree(pWriter);
-  tdsqlite3Fts3SegReaderFinish(&csr);
-  return rc;
-}
-
-
-/* 
-** Flush the contents of pendingTerms to level 0 segments. 
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3PendingTermsFlush(Fts3Table *p){
-  int rc = SQLITE_OK;
-  int i;
-        
-  for(i=0; rc==SQLITE_OK && i<p->nIndex; i++){
-    rc = fts3SegmentMerge(p, p->iPrevLangid, i, FTS3_SEGCURSOR_PENDING);
-    if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-  }
-  tdsqlite3Fts3PendingTermsClear(p);
-
-  /* Determine the auto-incr-merge setting if unknown.  If enabled,
-  ** estimate the number of leaf blocks of content to be written
-  */
-  if( rc==SQLITE_OK && p->bHasStat
-   && p->nAutoincrmerge==0xff && p->nLeafAdd>0
-  ){
-    tdsqlite3_stmt *pStmt = 0;
-    rc = fts3SqlStmt(p, SQL_SELECT_STAT, &pStmt, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int(pStmt, 1, FTS_STAT_AUTOINCRMERGE);
-      rc = tdsqlite3_step(pStmt);
-      if( rc==SQLITE_ROW ){
-        p->nAutoincrmerge = tdsqlite3_column_int(pStmt, 0);
-        if( p->nAutoincrmerge==1 ) p->nAutoincrmerge = 8;
-      }else if( rc==SQLITE_DONE ){
-        p->nAutoincrmerge = 0;
-      }
-      rc = tdsqlite3_reset(pStmt);
-    }
-  }
-  return rc;
-}
-
-/*
-** Encode N integers as varints into a blob.
-*/
-static void fts3EncodeIntArray(
-  int N,             /* The number of integers to encode */
-  u32 *a,            /* The integer values */
-  char *zBuf,        /* Write the BLOB here */
-  int *pNBuf         /* Write number of bytes if zBuf[] used here */
-){
-  int i, j;
-  for(i=j=0; i<N; i++){
-    j += tdsqlite3Fts3PutVarint(&zBuf[j], (tdsqlite3_int64)a[i]);
-  }
-  *pNBuf = j;
-}
-
-/*
-** Decode a blob of varints into N integers
-*/
-static void fts3DecodeIntArray(
-  int N,             /* The number of integers to decode */
-  u32 *a,            /* Write the integer values */
-  const char *zBuf,  /* The BLOB containing the varints */
-  int nBuf           /* size of the BLOB */
-){
-  int i = 0;
-  if( nBuf && (zBuf[nBuf-1]&0x80)==0 ){
-    int j;
-    for(i=j=0; i<N && j<nBuf; i++){
-      tdsqlite3_int64 x;
-      j += tdsqlite3Fts3GetVarint(&zBuf[j], &x);
-      a[i] = (u32)(x & 0xffffffff);
-    }
-  }
-  while( i<N ) a[i++] = 0;
-}
-
-/*
-** Insert the sizes (in tokens) for each column of the document
-** with docid equal to p->iPrevDocid.  The sizes are encoded as
-** a blob of varints.
-*/
-static void fts3InsertDocsize(
-  int *pRC,                       /* Result code */
-  Fts3Table *p,                   /* Table into which to insert */
-  u32 *aSz                        /* Sizes of each column, in tokens */
-){
-  char *pBlob;             /* The BLOB encoding of the document size */
-  int nBlob;               /* Number of bytes in the BLOB */
-  tdsqlite3_stmt *pStmt;     /* Statement used to insert the encoding */
-  int rc;                  /* Result code from subfunctions */
-
-  if( *pRC ) return;
-  pBlob = tdsqlite3_malloc64( 10*(tdsqlite3_int64)p->nColumn );
-  if( pBlob==0 ){
-    *pRC = SQLITE_NOMEM;
-    return;
-  }
-  fts3EncodeIntArray(p->nColumn, aSz, pBlob, &nBlob);
-  rc = fts3SqlStmt(p, SQL_REPLACE_DOCSIZE, &pStmt, 0);
-  if( rc ){
-    tdsqlite3_free(pBlob);
-    *pRC = rc;
-    return;
-  }
-  tdsqlite3_bind_int64(pStmt, 1, p->iPrevDocid);
-  tdsqlite3_bind_blob(pStmt, 2, pBlob, nBlob, tdsqlite3_free);
-  tdsqlite3_step(pStmt);
-  *pRC = tdsqlite3_reset(pStmt);
-}
-
-/*
-** Record 0 of the %_stat table contains a blob consisting of N varints,
-** where N is the number of user defined columns in the fts3 table plus
-** two. If nCol is the number of user defined columns, then values of the 
-** varints are set as follows:
-**
-**   Varint 0:       Total number of rows in the table.
-**
-**   Varint 1..nCol: For each column, the total number of tokens stored in
-**                   the column for all rows of the table.
-**
-**   Varint 1+nCol:  The total size, in bytes, of all text values in all
-**                   columns of all rows of the table.
-**
-*/
-static void fts3UpdateDocTotals(
-  int *pRC,                       /* The result code */
-  Fts3Table *p,                   /* Table being updated */
-  u32 *aSzIns,                    /* Size increases */
-  u32 *aSzDel,                    /* Size decreases */
-  int nChng                       /* Change in the number of documents */
-){
-  char *pBlob;             /* Storage for BLOB written into %_stat */
-  int nBlob;               /* Size of BLOB written into %_stat */
-  u32 *a;                  /* Array of integers that becomes the BLOB */
-  tdsqlite3_stmt *pStmt;     /* Statement for reading and writing */
-  int i;                   /* Loop counter */
-  int rc;                  /* Result code from subfunctions */
-
-  const int nStat = p->nColumn+2;
-
-  if( *pRC ) return;
-  a = tdsqlite3_malloc64( (sizeof(u32)+10)*(tdsqlite3_int64)nStat );
-  if( a==0 ){
-    *pRC = SQLITE_NOMEM;
-    return;
-  }
-  pBlob = (char*)&a[nStat];
-  rc = fts3SqlStmt(p, SQL_SELECT_STAT, &pStmt, 0);
-  if( rc ){
-    tdsqlite3_free(a);
-    *pRC = rc;
-    return;
-  }
-  tdsqlite3_bind_int(pStmt, 1, FTS_STAT_DOCTOTAL);
-  if( tdsqlite3_step(pStmt)==SQLITE_ROW ){
-    fts3DecodeIntArray(nStat, a,
-         tdsqlite3_column_blob(pStmt, 0),
-         tdsqlite3_column_bytes(pStmt, 0));
-  }else{
-    memset(a, 0, sizeof(u32)*(nStat) );
-  }
-  rc = tdsqlite3_reset(pStmt);
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_free(a);
-    *pRC = rc;
-    return;
-  }
-  if( nChng<0 && a[0]<(u32)(-nChng) ){
-    a[0] = 0;
-  }else{
-    a[0] += nChng;
-  }
-  for(i=0; i<p->nColumn+1; i++){
-    u32 x = a[i+1];
-    if( x+aSzIns[i] < aSzDel[i] ){
-      x = 0;
-    }else{
-      x = x + aSzIns[i] - aSzDel[i];
-    }
-    a[i+1] = x;
-  }
-  fts3EncodeIntArray(nStat, a, pBlob, &nBlob);
-  rc = fts3SqlStmt(p, SQL_REPLACE_STAT, &pStmt, 0);
-  if( rc ){
-    tdsqlite3_free(a);
-    *pRC = rc;
-    return;
-  }
-  tdsqlite3_bind_int(pStmt, 1, FTS_STAT_DOCTOTAL);
-  tdsqlite3_bind_blob(pStmt, 2, pBlob, nBlob, SQLITE_STATIC);
-  tdsqlite3_step(pStmt);
-  *pRC = tdsqlite3_reset(pStmt);
-  tdsqlite3_bind_null(pStmt, 2);
-  tdsqlite3_free(a);
-}
-
-/*
-** Merge the entire database so that there is one segment for each 
-** iIndex/iLangid combination.
-*/
-static int fts3DoOptimize(Fts3Table *p, int bReturnDone){
-  int bSeenDone = 0;
-  int rc;
-  tdsqlite3_stmt *pAllLangid = 0;
-
-  rc = tdsqlite3Fts3PendingTermsFlush(p);
-  if( rc==SQLITE_OK ){
-    rc = fts3SqlStmt(p, SQL_SELECT_ALL_LANGID, &pAllLangid, 0);
-  }
-  if( rc==SQLITE_OK ){
-    int rc2;
-    tdsqlite3_bind_int(pAllLangid, 1, p->iPrevLangid);
-    tdsqlite3_bind_int(pAllLangid, 2, p->nIndex);
-    while( tdsqlite3_step(pAllLangid)==SQLITE_ROW ){
-      int i;
-      int iLangid = tdsqlite3_column_int(pAllLangid, 0);
-      for(i=0; rc==SQLITE_OK && i<p->nIndex; i++){
-        rc = fts3SegmentMerge(p, iLangid, i, FTS3_SEGCURSOR_ALL);
-        if( rc==SQLITE_DONE ){
-          bSeenDone = 1;
-          rc = SQLITE_OK;
-        }
-      }
-    }
-    rc2 = tdsqlite3_reset(pAllLangid);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  tdsqlite3Fts3SegmentsClose(p);
-
-  return (rc==SQLITE_OK && bReturnDone && bSeenDone) ? SQLITE_DONE : rc;
-}
-
-/*
-** This function is called when the user executes the following statement:
-**
-**     INSERT INTO <tbl>(<tbl>) VALUES('rebuild');
-**
-** The entire FTS index is discarded and rebuilt. If the table is one 
-** created using the content=xxx option, then the new index is based on
-** the current contents of the xxx table. Otherwise, it is rebuilt based
-** on the contents of the %_content table.
-*/
-static int fts3DoRebuild(Fts3Table *p){
-  int rc;                         /* Return Code */
-
-  rc = fts3DeleteAll(p, 0);
-  if( rc==SQLITE_OK ){
-    u32 *aSz = 0;
-    u32 *aSzIns = 0;
-    u32 *aSzDel = 0;
-    tdsqlite3_stmt *pStmt = 0;
-    int nEntry = 0;
-
-    /* Compose and prepare an SQL statement to loop through the content table */
-    char *zSql = tdsqlite3_mprintf("SELECT %s" , p->zReadExprlist);
-    if( !zSql ){
-      rc = SQLITE_NOMEM;
-    }else{
-      rc = tdsqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
-      tdsqlite3_free(zSql);
-    }
-
-    if( rc==SQLITE_OK ){
-      tdsqlite3_int64 nByte = sizeof(u32) * ((tdsqlite3_int64)p->nColumn+1)*3;
-      aSz = (u32 *)tdsqlite3_malloc64(nByte);
-      if( aSz==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        memset(aSz, 0, nByte);
-        aSzIns = &aSz[p->nColumn+1];
-        aSzDel = &aSzIns[p->nColumn+1];
-      }
-    }
-
-    while( rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      int iCol;
-      int iLangid = langidFromSelect(p, pStmt);
-      rc = fts3PendingTermsDocid(p, 0, iLangid, tdsqlite3_column_int64(pStmt, 0));
-      memset(aSz, 0, sizeof(aSz[0]) * (p->nColumn+1));
-      for(iCol=0; rc==SQLITE_OK && iCol<p->nColumn; iCol++){
-        if( p->abNotindexed[iCol]==0 ){
-          const char *z = (const char *) tdsqlite3_column_text(pStmt, iCol+1);
-          rc = fts3PendingTermsAdd(p, iLangid, z, iCol, &aSz[iCol]);
-          aSz[p->nColumn] += tdsqlite3_column_bytes(pStmt, iCol+1);
-        }
-      }
-      if( p->bHasDocsize ){
-        fts3InsertDocsize(&rc, p, aSz);
-      }
-      if( rc!=SQLITE_OK ){
-        tdsqlite3_finalize(pStmt);
-        pStmt = 0;
-      }else{
-        nEntry++;
-        for(iCol=0; iCol<=p->nColumn; iCol++){
-          aSzIns[iCol] += aSz[iCol];
-        }
-      }
-    }
-    if( p->bFts4 ){
-      fts3UpdateDocTotals(&rc, p, aSzIns, aSzDel, nEntry);
-    }
-    tdsqlite3_free(aSz);
-
-    if( pStmt ){
-      int rc2 = tdsqlite3_finalize(pStmt);
-      if( rc==SQLITE_OK ){
-        rc = rc2;
-      }
-    }
-  }
-
-  return rc;
-}
-
-
-/*
-** This function opens a cursor used to read the input data for an 
-** incremental merge operation. Specifically, it opens a cursor to scan
-** the oldest nSeg segments (idx=0 through idx=(nSeg-1)) in absolute 
-** level iAbsLevel.
-*/
-static int fts3IncrmergeCsr(
-  Fts3Table *p,                   /* FTS3 table handle */
-  tdsqlite3_int64 iAbsLevel,        /* Absolute level to open */
-  int nSeg,                       /* Number of segments to merge */
-  Fts3MultiSegReader *pCsr        /* Cursor object to populate */
-){
-  int rc;                         /* Return Code */
-  tdsqlite3_stmt *pStmt = 0;        /* Statement used to read %_segdir entry */  
-  tdsqlite3_int64 nByte;            /* Bytes allocated at pCsr->apSegment[] */
-
-  /* Allocate space for the Fts3MultiSegReader.aCsr[] array */
-  memset(pCsr, 0, sizeof(*pCsr));
-  nByte = sizeof(Fts3SegReader *) * nSeg;
-  pCsr->apSegment = (Fts3SegReader **)tdsqlite3_malloc64(nByte);
-
-  if( pCsr->apSegment==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    memset(pCsr->apSegment, 0, nByte);
-    rc = fts3SqlStmt(p, SQL_SELECT_LEVEL, &pStmt, 0);
-  }
-  if( rc==SQLITE_OK ){
-    int i;
-    int rc2;
-    tdsqlite3_bind_int64(pStmt, 1, iAbsLevel);
-    assert( pCsr->nSegment==0 );
-    for(i=0; rc==SQLITE_OK && tdsqlite3_step(pStmt)==SQLITE_ROW && i<nSeg; i++){
-      rc = tdsqlite3Fts3SegReaderNew(i, 0,
-          tdsqlite3_column_int64(pStmt, 1),        /* segdir.start_block */
-          tdsqlite3_column_int64(pStmt, 2),        /* segdir.leaves_end_block */
-          tdsqlite3_column_int64(pStmt, 3),        /* segdir.end_block */
-          tdsqlite3_column_blob(pStmt, 4),         /* segdir.root */
-          tdsqlite3_column_bytes(pStmt, 4),        /* segdir.root */
-          &pCsr->apSegment[i]
-      );
-      pCsr->nSegment++;
-    }
-    rc2 = tdsqlite3_reset(pStmt);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  return rc;
-}
-
-typedef struct IncrmergeWriter IncrmergeWriter;
-typedef struct NodeWriter NodeWriter;
-typedef struct Blob Blob;
-typedef struct NodeReader NodeReader;
-
-/*
-** An instance of the following structure is used as a dynamic buffer
-** to build up nodes or other blobs of data in.
-**
-** The function blobGrowBuffer() is used to extend the allocation.
-*/
-struct Blob {
-  char *a;                        /* Pointer to allocation */
-  int n;                          /* Number of valid bytes of data in a[] */
-  int nAlloc;                     /* Allocated size of a[] (nAlloc>=n) */
-};
-
-/*
-** This structure is used to build up buffers containing segment b-tree 
-** nodes (blocks).
-*/
-struct NodeWriter {
-  tdsqlite3_int64 iBlock;           /* Current block id */
-  Blob key;                       /* Last key written to the current block */
-  Blob block;                     /* Current block image */
-};
-
-/*
-** An object of this type contains the state required to create or append
-** to an appendable b-tree segment.
-*/
-struct IncrmergeWriter {
-  int nLeafEst;                   /* Space allocated for leaf blocks */
-  int nWork;                      /* Number of leaf pages flushed */
-  tdsqlite3_int64 iAbsLevel;        /* Absolute level of input segments */
-  int iIdx;                       /* Index of *output* segment in iAbsLevel+1 */
-  tdsqlite3_int64 iStart;           /* Block number of first allocated block */
-  tdsqlite3_int64 iEnd;             /* Block number of last allocated block */
-  tdsqlite3_int64 nLeafData;        /* Bytes of leaf page data so far */
-  u8 bNoLeafData;                 /* If true, store 0 for segment size */
-  NodeWriter aNodeWriter[FTS_MAX_APPENDABLE_HEIGHT];
-};
-
-/*
-** An object of the following type is used to read data from a single
-** FTS segment node. See the following functions:
-**
-**     nodeReaderInit()
-**     nodeReaderNext()
-**     nodeReaderRelease()
-*/
-struct NodeReader {
-  const char *aNode;
-  int nNode;
-  int iOff;                       /* Current offset within aNode[] */
-
-  /* Output variables. Containing the current node entry. */
-  tdsqlite3_int64 iChild;           /* Pointer to child node */
-  Blob term;                      /* Current term */
-  const char *aDoclist;           /* Pointer to doclist */
-  int nDoclist;                   /* Size of doclist in bytes */
-};
-
-/*
-** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
-** Otherwise, if the allocation at pBlob->a is not already at least nMin
-** bytes in size, extend (realloc) it to be so.
-**
-** If an OOM error occurs, set *pRc to SQLITE_NOMEM and leave pBlob->a
-** unmodified. Otherwise, if the allocation succeeds, update pBlob->nAlloc
-** to reflect the new size of the pBlob->a[] buffer.
-*/
-static void blobGrowBuffer(Blob *pBlob, int nMin, int *pRc){
-  if( *pRc==SQLITE_OK && nMin>pBlob->nAlloc ){
-    int nAlloc = nMin;
-    char *a = (char *)tdsqlite3_realloc(pBlob->a, nAlloc);
-    if( a ){
-      pBlob->nAlloc = nAlloc;
-      pBlob->a = a;
-    }else{
-      *pRc = SQLITE_NOMEM;
-    }
-  }
-}
-
-/*
-** Attempt to advance the node-reader object passed as the first argument to
-** the next entry on the node. 
-**
-** Return an error code if an error occurs (SQLITE_NOMEM is possible). 
-** Otherwise return SQLITE_OK. If there is no next entry on the node
-** (e.g. because the current entry is the last) set NodeReader->aNode to
-** NULL to indicate EOF. Otherwise, populate the NodeReader structure output 
-** variables for the new entry.
-*/
-static int nodeReaderNext(NodeReader *p){
-  int bFirst = (p->term.n==0);    /* True for first term on the node */
-  int nPrefix = 0;                /* Bytes to copy from previous term */
-  int nSuffix = 0;                /* Bytes to append to the prefix */
-  int rc = SQLITE_OK;             /* Return code */
-
-  assert( p->aNode );
-  if( p->iChild && bFirst==0 ) p->iChild++;
-  if( p->iOff>=p->nNode ){
-    /* EOF */
-    p->aNode = 0;
-  }else{
-    if( bFirst==0 ){
-      p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &nPrefix);
-    }
-    p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &nSuffix);
-
-    if( nPrefix>p->term.n || nSuffix>p->nNode-p->iOff || nSuffix==0 ){
-      return FTS_CORRUPT_VTAB;
-    }
-    blobGrowBuffer(&p->term, nPrefix+nSuffix, &rc);
-    if( rc==SQLITE_OK ){
-      memcpy(&p->term.a[nPrefix], &p->aNode[p->iOff], nSuffix);
-      p->term.n = nPrefix+nSuffix;
-      p->iOff += nSuffix;
-      if( p->iChild==0 ){
-        p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &p->nDoclist);
-        if( (p->nNode-p->iOff)<p->nDoclist ){
-          return FTS_CORRUPT_VTAB;
-        }
-        p->aDoclist = &p->aNode[p->iOff];
-        p->iOff += p->nDoclist;
-      }
-    }
-  }
-
-  assert_fts3_nc( p->iOff<=p->nNode );
-  return rc;
-}
-
-/*
-** Release all dynamic resources held by node-reader object *p.
-*/
-static void nodeReaderRelease(NodeReader *p){
-  tdsqlite3_free(p->term.a);
-}
-
-/*
-** Initialize a node-reader object to read the node in buffer aNode/nNode.
-**
-** If successful, SQLITE_OK is returned and the NodeReader object set to 
-** point to the first entry on the node (if any). Otherwise, an SQLite
-** error code is returned.
-*/
-static int nodeReaderInit(NodeReader *p, const char *aNode, int nNode){
-  memset(p, 0, sizeof(NodeReader));
-  p->aNode = aNode;
-  p->nNode = nNode;
-
-  /* Figure out if this is a leaf or an internal node. */
-  if( aNode && aNode[0] ){
-    /* An internal node. */
-    p->iOff = 1 + tdsqlite3Fts3GetVarint(&p->aNode[1], &p->iChild);
-  }else{
-    p->iOff = 1;
-  }
-
-  return aNode ? nodeReaderNext(p) : SQLITE_OK;
-}
-
-/*
-** This function is called while writing an FTS segment each time a leaf o
-** node is finished and written to disk. The key (zTerm/nTerm) is guaranteed
-** to be greater than the largest key on the node just written, but smaller
-** than or equal to the first key that will be written to the next leaf
-** node.
-**
-** The block id of the leaf node just written to disk may be found in
-** (pWriter->aNodeWriter[0].iBlock) when this function is called.
-*/
-static int fts3IncrmergePush(
-  Fts3Table *p,                   /* Fts3 table handle */
-  IncrmergeWriter *pWriter,       /* Writer object */
-  const char *zTerm,              /* Term to write to internal node */
-  int nTerm                       /* Bytes at zTerm */
-){
-  tdsqlite3_int64 iPtr = pWriter->aNodeWriter[0].iBlock;
-  int iLayer;
-
-  assert( nTerm>0 );
-  for(iLayer=1; ALWAYS(iLayer<FTS_MAX_APPENDABLE_HEIGHT); iLayer++){
-    tdsqlite3_int64 iNextPtr = 0;
-    NodeWriter *pNode = &pWriter->aNodeWriter[iLayer];
-    int rc = SQLITE_OK;
-    int nPrefix;
-    int nSuffix;
-    int nSpace;
-
-    /* Figure out how much space the key will consume if it is written to
-    ** the current node of layer iLayer. Due to the prefix compression, 
-    ** the space required changes depending on which node the key is to
-    ** be added to.  */
-    nPrefix = fts3PrefixCompress(pNode->key.a, pNode->key.n, zTerm, nTerm);
-    nSuffix = nTerm - nPrefix;
-    if(nSuffix<=0 ) return FTS_CORRUPT_VTAB;
-    nSpace  = tdsqlite3Fts3VarintLen(nPrefix);
-    nSpace += tdsqlite3Fts3VarintLen(nSuffix) + nSuffix;
-
-    if( pNode->key.n==0 || (pNode->block.n + nSpace)<=p->nNodeSize ){ 
-      /* If the current node of layer iLayer contains zero keys, or if adding
-      ** the key to it will not cause it to grow to larger than nNodeSize 
-      ** bytes in size, write the key here.  */
-
-      Blob *pBlk = &pNode->block;
-      if( pBlk->n==0 ){
-        blobGrowBuffer(pBlk, p->nNodeSize, &rc);
-        if( rc==SQLITE_OK ){
-          pBlk->a[0] = (char)iLayer;
-          pBlk->n = 1 + tdsqlite3Fts3PutVarint(&pBlk->a[1], iPtr);
-        }
-      }
-      blobGrowBuffer(pBlk, pBlk->n + nSpace, &rc);
-      blobGrowBuffer(&pNode->key, nTerm, &rc);
-
-      if( rc==SQLITE_OK ){
-        if( pNode->key.n ){
-          pBlk->n += tdsqlite3Fts3PutVarint(&pBlk->a[pBlk->n], nPrefix);
-        }
-        pBlk->n += tdsqlite3Fts3PutVarint(&pBlk->a[pBlk->n], nSuffix);
-        memcpy(&pBlk->a[pBlk->n], &zTerm[nPrefix], nSuffix);
-        pBlk->n += nSuffix;
-
-        memcpy(pNode->key.a, zTerm, nTerm);
-        pNode->key.n = nTerm;
-      }
-    }else{
-      /* Otherwise, flush the current node of layer iLayer to disk.
-      ** Then allocate a new, empty sibling node. The key will be written
-      ** into the parent of this node. */
-      rc = fts3WriteSegment(p, pNode->iBlock, pNode->block.a, pNode->block.n);
-
-      assert( pNode->block.nAlloc>=p->nNodeSize );
-      pNode->block.a[0] = (char)iLayer;
-      pNode->block.n = 1 + tdsqlite3Fts3PutVarint(&pNode->block.a[1], iPtr+1);
-
-      iNextPtr = pNode->iBlock;
-      pNode->iBlock++;
-      pNode->key.n = 0;
-    }
-
-    if( rc!=SQLITE_OK || iNextPtr==0 ) return rc;
-    iPtr = iNextPtr;
-  }
-
-  assert( 0 );
-  return 0;
-}
-
-/*
-** Append a term and (optionally) doclist to the FTS segment node currently
-** stored in blob *pNode. The node need not contain any terms, but the
-** header must be written before this function is called.
-**
-** A node header is a single 0x00 byte for a leaf node, or a height varint
-** followed by the left-hand-child varint for an internal node.
-**
-** The term to be appended is passed via arguments zTerm/nTerm. For a 
-** leaf node, the doclist is passed as aDoclist/nDoclist. For an internal
-** node, both aDoclist and nDoclist must be passed 0.
-**
-** If the size of the value in blob pPrev is zero, then this is the first
-** term written to the node. Otherwise, pPrev contains a copy of the 
-** previous term. Before this function returns, it is updated to contain a
-** copy of zTerm/nTerm.
-**
-** It is assumed that the buffer associated with pNode is already large
-** enough to accommodate the new entry. The buffer associated with pPrev
-** is extended by this function if requrired.
-**
-** If an error (i.e. OOM condition) occurs, an SQLite error code is
-** returned. Otherwise, SQLITE_OK.
-*/
-static int fts3AppendToNode(
-  Blob *pNode,                    /* Current node image to append to */
-  Blob *pPrev,                    /* Buffer containing previous term written */
-  const char *zTerm,              /* New term to write */
-  int nTerm,                      /* Size of zTerm in bytes */
-  const char *aDoclist,           /* Doclist (or NULL) to write */
-  int nDoclist                    /* Size of aDoclist in bytes */ 
-){
-  int rc = SQLITE_OK;             /* Return code */
-  int bFirst = (pPrev->n==0);     /* True if this is the first term written */
-  int nPrefix;                    /* Size of term prefix in bytes */
-  int nSuffix;                    /* Size of term suffix in bytes */
-
-  /* Node must have already been started. There must be a doclist for a
-  ** leaf node, and there must not be a doclist for an internal node.  */
-  assert( pNode->n>0 );
-  assert_fts3_nc( (pNode->a[0]=='\0')==(aDoclist!=0) );
-
-  blobGrowBuffer(pPrev, nTerm, &rc);
-  if( rc!=SQLITE_OK ) return rc;
-
-  nPrefix = fts3PrefixCompress(pPrev->a, pPrev->n, zTerm, nTerm);
-  nSuffix = nTerm - nPrefix;
-  if( nSuffix<=0 ) return FTS_CORRUPT_VTAB;
-  memcpy(pPrev->a, zTerm, nTerm);
-  pPrev->n = nTerm;
-
-  if( bFirst==0 ){
-    pNode->n += tdsqlite3Fts3PutVarint(&pNode->a[pNode->n], nPrefix);
-  }
-  pNode->n += tdsqlite3Fts3PutVarint(&pNode->a[pNode->n], nSuffix);
-  memcpy(&pNode->a[pNode->n], &zTerm[nPrefix], nSuffix);
-  pNode->n += nSuffix;
-
-  if( aDoclist ){
-    pNode->n += tdsqlite3Fts3PutVarint(&pNode->a[pNode->n], nDoclist);
-    memcpy(&pNode->a[pNode->n], aDoclist, nDoclist);
-    pNode->n += nDoclist;
-  }
-
-  assert( pNode->n<=pNode->nAlloc );
-
-  return SQLITE_OK;
-}
-
-/*
-** Append the current term and doclist pointed to by cursor pCsr to the
-** appendable b-tree segment opened for writing by pWriter.
-**
-** Return SQLITE_OK if successful, or an SQLite error code otherwise.
-*/
-static int fts3IncrmergeAppend(
-  Fts3Table *p,                   /* Fts3 table handle */
-  IncrmergeWriter *pWriter,       /* Writer object */
-  Fts3MultiSegReader *pCsr        /* Cursor containing term and doclist */
-){
-  const char *zTerm = pCsr->zTerm;
-  int nTerm = pCsr->nTerm;
-  const char *aDoclist = pCsr->aDoclist;
-  int nDoclist = pCsr->nDoclist;
-  int rc = SQLITE_OK;           /* Return code */
-  int nSpace;                   /* Total space in bytes required on leaf */
-  int nPrefix;                  /* Size of prefix shared with previous term */
-  int nSuffix;                  /* Size of suffix (nTerm - nPrefix) */
-  NodeWriter *pLeaf;            /* Object used to write leaf nodes */
-
-  pLeaf = &pWriter->aNodeWriter[0];
-  nPrefix = fts3PrefixCompress(pLeaf->key.a, pLeaf->key.n, zTerm, nTerm);
-  nSuffix = nTerm - nPrefix;
-
-  nSpace  = tdsqlite3Fts3VarintLen(nPrefix);
-  nSpace += tdsqlite3Fts3VarintLen(nSuffix) + nSuffix;
-  nSpace += tdsqlite3Fts3VarintLen(nDoclist) + nDoclist;
-
-  /* If the current block is not empty, and if adding this term/doclist
-  ** to the current block would make it larger than Fts3Table.nNodeSize
-  ** bytes, write this block out to the database. */
-  if( pLeaf->block.n>0 && (pLeaf->block.n + nSpace)>p->nNodeSize ){
-    rc = fts3WriteSegment(p, pLeaf->iBlock, pLeaf->block.a, pLeaf->block.n);
-    pWriter->nWork++;
-
-    /* Add the current term to the parent node. The term added to the 
-    ** parent must:
-    **
-    **   a) be greater than the largest term on the leaf node just written
-    **      to the database (still available in pLeaf->key), and
-    **
-    **   b) be less than or equal to the term about to be added to the new
-    **      leaf node (zTerm/nTerm).
-    **
-    ** In other words, it must be the prefix of zTerm 1 byte longer than
-    ** the common prefix (if any) of zTerm and pWriter->zTerm.
-    */
-    if( rc==SQLITE_OK ){
-      rc = fts3IncrmergePush(p, pWriter, zTerm, nPrefix+1);
-    }
-
-    /* Advance to the next output block */
-    pLeaf->iBlock++;
-    pLeaf->key.n = 0;
-    pLeaf->block.n = 0;
-
-    nSuffix = nTerm;
-    nSpace  = 1;
-    nSpace += tdsqlite3Fts3VarintLen(nSuffix) + nSuffix;
-    nSpace += tdsqlite3Fts3VarintLen(nDoclist) + nDoclist;
-  }
-
-  pWriter->nLeafData += nSpace;
-  blobGrowBuffer(&pLeaf->block, pLeaf->block.n + nSpace, &rc);
-  if( rc==SQLITE_OK ){
-    if( pLeaf->block.n==0 ){
-      pLeaf->block.n = 1;
-      pLeaf->block.a[0] = '\0';
-    }
-    rc = fts3AppendToNode(
-        &pLeaf->block, &pLeaf->key, zTerm, nTerm, aDoclist, nDoclist
-    );
-  }
-
-  return rc;
-}
-
-/*
-** This function is called to release all dynamic resources held by the
-** merge-writer object pWriter, and if no error has occurred, to flush
-** all outstanding node buffers held by pWriter to disk.
-**
-** If *pRc is not SQLITE_OK when this function is called, then no attempt
-** is made to write any data to disk. Instead, this function serves only
-** to release outstanding resources.
-**
-** Otherwise, if *pRc is initially SQLITE_OK and an error occurs while
-** flushing buffers to disk, *pRc is set to an SQLite error code before
-** returning.
-*/
-static void fts3IncrmergeRelease(
-  Fts3Table *p,                   /* FTS3 table handle */
-  IncrmergeWriter *pWriter,       /* Merge-writer object */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  int i;                          /* Used to iterate through non-root layers */
-  int iRoot;                      /* Index of root in pWriter->aNodeWriter */
-  NodeWriter *pRoot;              /* NodeWriter for root node */
-  int rc = *pRc;                  /* Error code */
-
-  /* Set iRoot to the index in pWriter->aNodeWriter[] of the output segment 
-  ** root node. If the segment fits entirely on a single leaf node, iRoot
-  ** will be set to 0. If the root node is the parent of the leaves, iRoot
-  ** will be 1. And so on.  */
-  for(iRoot=FTS_MAX_APPENDABLE_HEIGHT-1; iRoot>=0; iRoot--){
-    NodeWriter *pNode = &pWriter->aNodeWriter[iRoot];
-    if( pNode->block.n>0 ) break;
-    assert( *pRc || pNode->block.nAlloc==0 );
-    assert( *pRc || pNode->key.nAlloc==0 );
-    tdsqlite3_free(pNode->block.a);
-    tdsqlite3_free(pNode->key.a);
-  }
-
-  /* Empty output segment. This is a no-op. */
-  if( iRoot<0 ) return;
-
-  /* The entire output segment fits on a single node. Normally, this means
-  ** the node would be stored as a blob in the "root" column of the %_segdir
-  ** table. However, this is not permitted in this case. The problem is that 
-  ** space has already been reserved in the %_segments table, and so the 
-  ** start_block and end_block fields of the %_segdir table must be populated. 
-  ** And, by design or by accident, released versions of FTS cannot handle 
-  ** segments that fit entirely on the root node with start_block!=0.
-  **
-  ** Instead, create a synthetic root node that contains nothing but a 
-  ** pointer to the single content node. So that the segment consists of a
-  ** single leaf and a single interior (root) node.
-  **
-  ** Todo: Better might be to defer allocating space in the %_segments 
-  ** table until we are sure it is needed.
-  */
-  if( iRoot==0 ){
-    Blob *pBlock = &pWriter->aNodeWriter[1].block;
-    blobGrowBuffer(pBlock, 1 + FTS3_VARINT_MAX, &rc);
-    if( rc==SQLITE_OK ){
-      pBlock->a[0] = 0x01;
-      pBlock->n = 1 + tdsqlite3Fts3PutVarint(
-          &pBlock->a[1], pWriter->aNodeWriter[0].iBlock
-      );
-    }
-    iRoot = 1;
-  }
-  pRoot = &pWriter->aNodeWriter[iRoot];
-
-  /* Flush all currently outstanding nodes to disk. */
-  for(i=0; i<iRoot; i++){
-    NodeWriter *pNode = &pWriter->aNodeWriter[i];
-    if( pNode->block.n>0 && rc==SQLITE_OK ){
-      rc = fts3WriteSegment(p, pNode->iBlock, pNode->block.a, pNode->block.n);
-    }
-    tdsqlite3_free(pNode->block.a);
-    tdsqlite3_free(pNode->key.a);
-  }
-
-  /* Write the %_segdir record. */
-  if( rc==SQLITE_OK ){
-    rc = fts3WriteSegdir(p, 
-        pWriter->iAbsLevel+1,               /* level */
-        pWriter->iIdx,                      /* idx */
-        pWriter->iStart,                    /* start_block */
-        pWriter->aNodeWriter[0].iBlock,     /* leaves_end_block */
-        pWriter->iEnd,                      /* end_block */
-        (pWriter->bNoLeafData==0 ? pWriter->nLeafData : 0),   /* end_block */
-        pRoot->block.a, pRoot->block.n      /* root */
-    );
-  }
-  tdsqlite3_free(pRoot->block.a);
-  tdsqlite3_free(pRoot->key.a);
-
-  *pRc = rc;
-}
-
-/*
-** Compare the term in buffer zLhs (size in bytes nLhs) with that in
-** zRhs (size in bytes nRhs) using memcmp. If one term is a prefix of
-** the other, it is considered to be smaller than the other.
-**
-** Return -ve if zLhs is smaller than zRhs, 0 if it is equal, or +ve
-** if it is greater.
-*/
-static int fts3TermCmp(
-  const char *zLhs, int nLhs,     /* LHS of comparison */
-  const char *zRhs, int nRhs      /* RHS of comparison */
-){
-  int nCmp = MIN(nLhs, nRhs);
-  int res;
-
-  res = (nCmp ? memcmp(zLhs, zRhs, nCmp) : 0);
-  if( res==0 ) res = nLhs - nRhs;
-
-  return res;
-}
-
-
-/*
-** Query to see if the entry in the %_segments table with blockid iEnd is 
-** NULL. If no error occurs and the entry is NULL, set *pbRes 1 before
-** returning. Otherwise, set *pbRes to 0. 
-**
-** Or, if an error occurs while querying the database, return an SQLite 
-** error code. The final value of *pbRes is undefined in this case.
-**
-** This is used to test if a segment is an "appendable" segment. If it
-** is, then a NULL entry has been inserted into the %_segments table
-** with blockid %_segdir.end_block.
-*/
-static int fts3IsAppendable(Fts3Table *p, tdsqlite3_int64 iEnd, int *pbRes){
-  int bRes = 0;                   /* Result to set *pbRes to */
-  tdsqlite3_stmt *pCheck = 0;       /* Statement to query database with */
-  int rc;                         /* Return code */
-
-  rc = fts3SqlStmt(p, SQL_SEGMENT_IS_APPENDABLE, &pCheck, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pCheck, 1, iEnd);
-    if( SQLITE_ROW==tdsqlite3_step(pCheck) ) bRes = 1;
-    rc = tdsqlite3_reset(pCheck);
-  }
-  
-  *pbRes = bRes;
-  return rc;
-}
-
-/*
-** This function is called when initializing an incremental-merge operation.
-** It checks if the existing segment with index value iIdx at absolute level 
-** (iAbsLevel+1) can be appended to by the incremental merge. If it can, the
-** merge-writer object *pWriter is initialized to write to it.
-**
-** An existing segment can be appended to by an incremental merge if:
-**
-**   * It was initially created as an appendable segment (with all required
-**     space pre-allocated), and
-**
-**   * The first key read from the input (arguments zKey and nKey) is 
-**     greater than the largest key currently stored in the potential
-**     output segment.
-*/
-static int fts3IncrmergeLoad(
-  Fts3Table *p,                   /* Fts3 table handle */
-  tdsqlite3_int64 iAbsLevel,        /* Absolute level of input segments */
-  int iIdx,                       /* Index of candidate output segment */
-  const char *zKey,               /* First key to write */
-  int nKey,                       /* Number of bytes in nKey */
-  IncrmergeWriter *pWriter        /* Populate this object */
-){
-  int rc;                         /* Return code */
-  tdsqlite3_stmt *pSelect = 0;      /* SELECT to read %_segdir entry */
-
-  rc = fts3SqlStmt(p, SQL_SELECT_SEGDIR, &pSelect, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_int64 iStart = 0;     /* Value of %_segdir.start_block */
-    tdsqlite3_int64 iLeafEnd = 0;   /* Value of %_segdir.leaves_end_block */
-    tdsqlite3_int64 iEnd = 0;       /* Value of %_segdir.end_block */
-    const char *aRoot = 0;        /* Pointer to %_segdir.root buffer */
-    int nRoot = 0;                /* Size of aRoot[] in bytes */
-    int rc2;                      /* Return code from tdsqlite3_reset() */
-    int bAppendable = 0;          /* Set to true if segment is appendable */
-
-    /* Read the %_segdir entry for index iIdx absolute level (iAbsLevel+1) */
-    tdsqlite3_bind_int64(pSelect, 1, iAbsLevel+1);
-    tdsqlite3_bind_int(pSelect, 2, iIdx);
-    if( tdsqlite3_step(pSelect)==SQLITE_ROW ){
-      iStart = tdsqlite3_column_int64(pSelect, 1);
-      iLeafEnd = tdsqlite3_column_int64(pSelect, 2);
-      fts3ReadEndBlockField(pSelect, 3, &iEnd, &pWriter->nLeafData);
-      if( pWriter->nLeafData<0 ){
-        pWriter->nLeafData = pWriter->nLeafData * -1;
-      }
-      pWriter->bNoLeafData = (pWriter->nLeafData==0);
-      nRoot = tdsqlite3_column_bytes(pSelect, 4);
-      aRoot = tdsqlite3_column_blob(pSelect, 4);
-      if( aRoot==0 ){
-        tdsqlite3_reset(pSelect);
-        return nRoot ? SQLITE_NOMEM : FTS_CORRUPT_VTAB;
-      }
-    }else{
-      return tdsqlite3_reset(pSelect);
-    }
-
-    /* Check for the zero-length marker in the %_segments table */
-    rc = fts3IsAppendable(p, iEnd, &bAppendable);
-
-    /* Check that zKey/nKey is larger than the largest key the candidate */
-    if( rc==SQLITE_OK && bAppendable ){
-      char *aLeaf = 0;
-      int nLeaf = 0;
-
-      rc = tdsqlite3Fts3ReadBlock(p, iLeafEnd, &aLeaf, &nLeaf, 0);
-      if( rc==SQLITE_OK ){
-        NodeReader reader;
-        for(rc = nodeReaderInit(&reader, aLeaf, nLeaf);
-            rc==SQLITE_OK && reader.aNode;
-            rc = nodeReaderNext(&reader)
-        ){
-          assert( reader.aNode );
-        }
-        if( fts3TermCmp(zKey, nKey, reader.term.a, reader.term.n)<=0 ){
-          bAppendable = 0;
-        }
-        nodeReaderRelease(&reader);
-      }
-      tdsqlite3_free(aLeaf);
-    }
-
-    if( rc==SQLITE_OK && bAppendable ){
-      /* It is possible to append to this segment. Set up the IncrmergeWriter
-      ** object to do so.  */
-      int i;
-      int nHeight = (int)aRoot[0];
-      NodeWriter *pNode;
-      if( nHeight<1 || nHeight>FTS_MAX_APPENDABLE_HEIGHT ){
-        tdsqlite3_reset(pSelect);
-        return FTS_CORRUPT_VTAB;
-      }
-
-      pWriter->nLeafEst = (int)((iEnd - iStart) + 1)/FTS_MAX_APPENDABLE_HEIGHT;
-      pWriter->iStart = iStart;
-      pWriter->iEnd = iEnd;
-      pWriter->iAbsLevel = iAbsLevel;
-      pWriter->iIdx = iIdx;
-
-      for(i=nHeight+1; i<FTS_MAX_APPENDABLE_HEIGHT; i++){
-        pWriter->aNodeWriter[i].iBlock = pWriter->iStart + i*pWriter->nLeafEst;
-      }
-
-      pNode = &pWriter->aNodeWriter[nHeight];
-      pNode->iBlock = pWriter->iStart + pWriter->nLeafEst*nHeight;
-      blobGrowBuffer(&pNode->block, 
-          MAX(nRoot, p->nNodeSize)+FTS3_NODE_PADDING, &rc
-      );
-      if( rc==SQLITE_OK ){
-        memcpy(pNode->block.a, aRoot, nRoot);
-        pNode->block.n = nRoot;
-        memset(&pNode->block.a[nRoot], 0, FTS3_NODE_PADDING);
-      }
-
-      for(i=nHeight; i>=0 && rc==SQLITE_OK; i--){
-        NodeReader reader;
-        pNode = &pWriter->aNodeWriter[i];
-
-        if( pNode->block.a){
-          rc = nodeReaderInit(&reader, pNode->block.a, pNode->block.n);
-          while( reader.aNode && rc==SQLITE_OK ) rc = nodeReaderNext(&reader);
-          blobGrowBuffer(&pNode->key, reader.term.n, &rc);
-          if( rc==SQLITE_OK ){
-            memcpy(pNode->key.a, reader.term.a, reader.term.n);
-            pNode->key.n = reader.term.n;
-            if( i>0 ){
-              char *aBlock = 0;
-              int nBlock = 0;
-              pNode = &pWriter->aNodeWriter[i-1];
-              pNode->iBlock = reader.iChild;
-              rc = tdsqlite3Fts3ReadBlock(p, reader.iChild, &aBlock, &nBlock, 0);
-              blobGrowBuffer(&pNode->block, 
-                  MAX(nBlock, p->nNodeSize)+FTS3_NODE_PADDING, &rc
-              );
-              if( rc==SQLITE_OK ){
-                memcpy(pNode->block.a, aBlock, nBlock);
-                pNode->block.n = nBlock;
-                memset(&pNode->block.a[nBlock], 0, FTS3_NODE_PADDING);
-              }
-              tdsqlite3_free(aBlock);
-            }
-          }
-        }
-        nodeReaderRelease(&reader);
-      }
-    }
-
-    rc2 = tdsqlite3_reset(pSelect);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  return rc;
-}
-
-/*
-** Determine the largest segment index value that exists within absolute
-** level iAbsLevel+1. If no error occurs, set *piIdx to this value plus
-** one before returning SQLITE_OK. Or, if there are no segments at all 
-** within level iAbsLevel, set *piIdx to zero.
-**
-** If an error occurs, return an SQLite error code. The final value of
-** *piIdx is undefined in this case.
-*/
-static int fts3IncrmergeOutputIdx( 
-  Fts3Table *p,                   /* FTS Table handle */
-  tdsqlite3_int64 iAbsLevel,        /* Absolute index of input segments */
-  int *piIdx                      /* OUT: Next free index at iAbsLevel+1 */
-){
-  int rc;
-  tdsqlite3_stmt *pOutputIdx = 0;   /* SQL used to find output index */
-
-  rc = fts3SqlStmt(p, SQL_NEXT_SEGMENT_INDEX, &pOutputIdx, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pOutputIdx, 1, iAbsLevel+1);
-    tdsqlite3_step(pOutputIdx);
-    *piIdx = tdsqlite3_column_int(pOutputIdx, 0);
-    rc = tdsqlite3_reset(pOutputIdx);
-  }
-
-  return rc;
-}
-
-/* 
-** Allocate an appendable output segment on absolute level iAbsLevel+1
-** with idx value iIdx.
-**
-** In the %_segdir table, a segment is defined by the values in three
-** columns:
-**
-**     start_block
-**     leaves_end_block
-**     end_block
-**
-** When an appendable segment is allocated, it is estimated that the
-** maximum number of leaf blocks that may be required is the sum of the
-** number of leaf blocks consumed by the input segments, plus the number
-** of input segments, multiplied by two. This value is stored in stack 
-** variable nLeafEst.
-**
-** A total of 16*nLeafEst blocks are allocated when an appendable segment
-** is created ((1 + end_block - start_block)==16*nLeafEst). The contiguous
-** array of leaf nodes starts at the first block allocated. The array
-** of interior nodes that are parents of the leaf nodes start at block
-** (start_block + (1 + end_block - start_block) / 16). And so on.
-**
-** In the actual code below, the value "16" is replaced with the 
-** pre-processor macro FTS_MAX_APPENDABLE_HEIGHT.
-*/
-static int fts3IncrmergeWriter( 
-  Fts3Table *p,                   /* Fts3 table handle */
-  tdsqlite3_int64 iAbsLevel,        /* Absolute level of input segments */
-  int iIdx,                       /* Index of new output segment */
-  Fts3MultiSegReader *pCsr,       /* Cursor that data will be read from */
-  IncrmergeWriter *pWriter        /* Populate this object */
-){
-  int rc;                         /* Return Code */
-  int i;                          /* Iterator variable */
-  int nLeafEst = 0;               /* Blocks allocated for leaf nodes */
-  tdsqlite3_stmt *pLeafEst = 0;     /* SQL used to determine nLeafEst */
-  tdsqlite3_stmt *pFirstBlock = 0;  /* SQL used to determine first block */
-
-  /* Calculate nLeafEst. */
-  rc = fts3SqlStmt(p, SQL_MAX_LEAF_NODE_ESTIMATE, &pLeafEst, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pLeafEst, 1, iAbsLevel);
-    tdsqlite3_bind_int64(pLeafEst, 2, pCsr->nSegment);
-    if( SQLITE_ROW==tdsqlite3_step(pLeafEst) ){
-      nLeafEst = tdsqlite3_column_int(pLeafEst, 0);
-    }
-    rc = tdsqlite3_reset(pLeafEst);
-  }
-  if( rc!=SQLITE_OK ) return rc;
-
-  /* Calculate the first block to use in the output segment */
-  rc = fts3SqlStmt(p, SQL_NEXT_SEGMENTS_ID, &pFirstBlock, 0);
-  if( rc==SQLITE_OK ){
-    if( SQLITE_ROW==tdsqlite3_step(pFirstBlock) ){
-      pWriter->iStart = tdsqlite3_column_int64(pFirstBlock, 0);
-      pWriter->iEnd = pWriter->iStart - 1;
-      pWriter->iEnd += nLeafEst * FTS_MAX_APPENDABLE_HEIGHT;
-    }
-    rc = tdsqlite3_reset(pFirstBlock);
-  }
-  if( rc!=SQLITE_OK ) return rc;
-
-  /* Insert the marker in the %_segments table to make sure nobody tries
-  ** to steal the space just allocated. This is also used to identify 
-  ** appendable segments.  */
-  rc = fts3WriteSegment(p, pWriter->iEnd, 0, 0);
-  if( rc!=SQLITE_OK ) return rc;
-
-  pWriter->iAbsLevel = iAbsLevel;
-  pWriter->nLeafEst = nLeafEst;
-  pWriter->iIdx = iIdx;
-
-  /* Set up the array of NodeWriter objects */
-  for(i=0; i<FTS_MAX_APPENDABLE_HEIGHT; i++){
-    pWriter->aNodeWriter[i].iBlock = pWriter->iStart + i*pWriter->nLeafEst;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Remove an entry from the %_segdir table. This involves running the 
-** following two statements:
-**
-**   DELETE FROM %_segdir WHERE level = :iAbsLevel AND idx = :iIdx
-**   UPDATE %_segdir SET idx = idx - 1 WHERE level = :iAbsLevel AND idx > :iIdx
-**
-** The DELETE statement removes the specific %_segdir level. The UPDATE 
-** statement ensures that the remaining segments have contiguously allocated
-** idx values.
-*/
-static int fts3RemoveSegdirEntry(
-  Fts3Table *p,                   /* FTS3 table handle */
-  tdsqlite3_int64 iAbsLevel,        /* Absolute level to delete from */
-  int iIdx                        /* Index of %_segdir entry to delete */
-){
-  int rc;                         /* Return code */
-  tdsqlite3_stmt *pDelete = 0;      /* DELETE statement */
-
-  rc = fts3SqlStmt(p, SQL_DELETE_SEGDIR_ENTRY, &pDelete, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pDelete, 1, iAbsLevel);
-    tdsqlite3_bind_int(pDelete, 2, iIdx);
-    tdsqlite3_step(pDelete);
-    rc = tdsqlite3_reset(pDelete);
-  }
-
-  return rc;
-}
-
-/*
-** One or more segments have just been removed from absolute level iAbsLevel.
-** Update the 'idx' values of the remaining segments in the level so that
-** the idx values are a contiguous sequence starting from 0.
-*/
-static int fts3RepackSegdirLevel(
-  Fts3Table *p,                   /* FTS3 table handle */
-  tdsqlite3_int64 iAbsLevel         /* Absolute level to repack */
-){
-  int rc;                         /* Return code */
-  int *aIdx = 0;                  /* Array of remaining idx values */
-  int nIdx = 0;                   /* Valid entries in aIdx[] */
-  int nAlloc = 0;                 /* Allocated size of aIdx[] */
-  int i;                          /* Iterator variable */
-  tdsqlite3_stmt *pSelect = 0;      /* Select statement to read idx values */
-  tdsqlite3_stmt *pUpdate = 0;      /* Update statement to modify idx values */
-
-  rc = fts3SqlStmt(p, SQL_SELECT_INDEXES, &pSelect, 0);
-  if( rc==SQLITE_OK ){
-    int rc2;
-    tdsqlite3_bind_int64(pSelect, 1, iAbsLevel);
-    while( SQLITE_ROW==tdsqlite3_step(pSelect) ){
-      if( nIdx>=nAlloc ){
-        int *aNew;
-        nAlloc += 16;
-        aNew = tdsqlite3_realloc(aIdx, nAlloc*sizeof(int));
-        if( !aNew ){
-          rc = SQLITE_NOMEM;
-          break;
-        }
-        aIdx = aNew;
-      }
-      aIdx[nIdx++] = tdsqlite3_column_int(pSelect, 0);
-    }
-    rc2 = tdsqlite3_reset(pSelect);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = fts3SqlStmt(p, SQL_SHIFT_SEGDIR_ENTRY, &pUpdate, 0);
-  }
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pUpdate, 2, iAbsLevel);
-  }
-
-  assert( p->bIgnoreSavepoint==0 );
-  p->bIgnoreSavepoint = 1;
-  for(i=0; rc==SQLITE_OK && i<nIdx; i++){
-    if( aIdx[i]!=i ){
-      tdsqlite3_bind_int(pUpdate, 3, aIdx[i]);
-      tdsqlite3_bind_int(pUpdate, 1, i);
-      tdsqlite3_step(pUpdate);
-      rc = tdsqlite3_reset(pUpdate);
-    }
-  }
-  p->bIgnoreSavepoint = 0;
-
-  tdsqlite3_free(aIdx);
-  return rc;
-}
-
-static void fts3StartNode(Blob *pNode, int iHeight, tdsqlite3_int64 iChild){
-  pNode->a[0] = (char)iHeight;
-  if( iChild ){
-    assert( pNode->nAlloc>=1+tdsqlite3Fts3VarintLen(iChild) );
-    pNode->n = 1 + tdsqlite3Fts3PutVarint(&pNode->a[1], iChild);
-  }else{
-    assert( pNode->nAlloc>=1 );
-    pNode->n = 1;
-  }
-}
-
-/*
-** The first two arguments are a pointer to and the size of a segment b-tree
-** node. The node may be a leaf or an internal node.
-**
-** This function creates a new node image in blob object *pNew by copying
-** all terms that are greater than or equal to zTerm/nTerm (for leaf nodes)
-** or greater than zTerm/nTerm (for internal nodes) from aNode/nNode.
-*/
-static int fts3TruncateNode(
-  const char *aNode,              /* Current node image */
-  int nNode,                      /* Size of aNode in bytes */
-  Blob *pNew,                     /* OUT: Write new node image here */
-  const char *zTerm,              /* Omit all terms smaller than this */
-  int nTerm,                      /* Size of zTerm in bytes */
-  tdsqlite3_int64 *piBlock          /* OUT: Block number in next layer down */
-){
-  NodeReader reader;              /* Reader object */
-  Blob prev = {0, 0, 0};          /* Previous term written to new node */
-  int rc = SQLITE_OK;             /* Return code */
-  int bLeaf;                       /* True for a leaf node */
-
-  if( nNode<1 ) return FTS_CORRUPT_VTAB;
-  bLeaf = aNode[0]=='\0';
-
-  /* Allocate required output space */
-  blobGrowBuffer(pNew, nNode, &rc);
-  if( rc!=SQLITE_OK ) return rc;
-  pNew->n = 0;
-
-  /* Populate new node buffer */
-  for(rc = nodeReaderInit(&reader, aNode, nNode); 
-      rc==SQLITE_OK && reader.aNode; 
-      rc = nodeReaderNext(&reader)
-  ){
-    if( pNew->n==0 ){
-      int res = fts3TermCmp(reader.term.a, reader.term.n, zTerm, nTerm);
-      if( res<0 || (bLeaf==0 && res==0) ) continue;
-      fts3StartNode(pNew, (int)aNode[0], reader.iChild);
-      *piBlock = reader.iChild;
-    }
-    rc = fts3AppendToNode(
-        pNew, &prev, reader.term.a, reader.term.n,
-        reader.aDoclist, reader.nDoclist
-    );
-    if( rc!=SQLITE_OK ) break;
-  }
-  if( pNew->n==0 ){
-    fts3StartNode(pNew, (int)aNode[0], reader.iChild);
-    *piBlock = reader.iChild;
-  }
-  assert( pNew->n<=pNew->nAlloc );
-
-  nodeReaderRelease(&reader);
-  tdsqlite3_free(prev.a);
-  return rc;
-}
-
-/*
-** Remove all terms smaller than zTerm/nTerm from segment iIdx in absolute 
-** level iAbsLevel. This may involve deleting entries from the %_segments
-** table, and modifying existing entries in both the %_segments and %_segdir
-** tables.
-**
-** SQLITE_OK is returned if the segment is updated successfully. Or an
-** SQLite error code otherwise.
-*/
-static int fts3TruncateSegment(
-  Fts3Table *p,                   /* FTS3 table handle */
-  tdsqlite3_int64 iAbsLevel,        /* Absolute level of segment to modify */
-  int iIdx,                       /* Index within level of segment to modify */
-  const char *zTerm,              /* Remove terms smaller than this */
-  int nTerm                      /* Number of bytes in buffer zTerm */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  Blob root = {0,0,0};            /* New root page image */
-  Blob block = {0,0,0};           /* Buffer used for any other block */
-  tdsqlite3_int64 iBlock = 0;       /* Block id */
-  tdsqlite3_int64 iNewStart = 0;    /* New value for iStartBlock */
-  tdsqlite3_int64 iOldStart = 0;    /* Old value for iStartBlock */
-  tdsqlite3_stmt *pFetch = 0;       /* Statement used to fetch segdir */
-
-  rc = fts3SqlStmt(p, SQL_SELECT_SEGDIR, &pFetch, 0);
-  if( rc==SQLITE_OK ){
-    int rc2;                      /* tdsqlite3_reset() return code */
-    tdsqlite3_bind_int64(pFetch, 1, iAbsLevel);
-    tdsqlite3_bind_int(pFetch, 2, iIdx);
-    if( SQLITE_ROW==tdsqlite3_step(pFetch) ){
-      const char *aRoot = tdsqlite3_column_blob(pFetch, 4);
-      int nRoot = tdsqlite3_column_bytes(pFetch, 4);
-      iOldStart = tdsqlite3_column_int64(pFetch, 1);
-      rc = fts3TruncateNode(aRoot, nRoot, &root, zTerm, nTerm, &iBlock);
-    }
-    rc2 = tdsqlite3_reset(pFetch);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  while( rc==SQLITE_OK && iBlock ){
-    char *aBlock = 0;
-    int nBlock = 0;
-    iNewStart = iBlock;
-
-    rc = tdsqlite3Fts3ReadBlock(p, iBlock, &aBlock, &nBlock, 0);
-    if( rc==SQLITE_OK ){
-      rc = fts3TruncateNode(aBlock, nBlock, &block, zTerm, nTerm, &iBlock);
-    }
-    if( rc==SQLITE_OK ){
-      rc = fts3WriteSegment(p, iNewStart, block.a, block.n);
-    }
-    tdsqlite3_free(aBlock);
-  }
-
-  /* Variable iNewStart now contains the first valid leaf node. */
-  if( rc==SQLITE_OK && iNewStart ){
-    tdsqlite3_stmt *pDel = 0;
-    rc = fts3SqlStmt(p, SQL_DELETE_SEGMENTS_RANGE, &pDel, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int64(pDel, 1, iOldStart);
-      tdsqlite3_bind_int64(pDel, 2, iNewStart-1);
-      tdsqlite3_step(pDel);
-      rc = tdsqlite3_reset(pDel);
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    tdsqlite3_stmt *pChomp = 0;
-    rc = fts3SqlStmt(p, SQL_CHOMP_SEGDIR, &pChomp, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int64(pChomp, 1, iNewStart);
-      tdsqlite3_bind_blob(pChomp, 2, root.a, root.n, SQLITE_STATIC);
-      tdsqlite3_bind_int64(pChomp, 3, iAbsLevel);
-      tdsqlite3_bind_int(pChomp, 4, iIdx);
-      tdsqlite3_step(pChomp);
-      rc = tdsqlite3_reset(pChomp);
-      tdsqlite3_bind_null(pChomp, 2);
-    }
-  }
-
-  tdsqlite3_free(root.a);
-  tdsqlite3_free(block.a);
-  return rc;
-}
-
-/*
-** This function is called after an incrmental-merge operation has run to
-** merge (or partially merge) two or more segments from absolute level
-** iAbsLevel.
-**
-** Each input segment is either removed from the db completely (if all of
-** its data was copied to the output segment by the incrmerge operation)
-** or modified in place so that it no longer contains those entries that
-** have been duplicated in the output segment.
-*/
-static int fts3IncrmergeChomp(
-  Fts3Table *p,                   /* FTS table handle */
-  tdsqlite3_int64 iAbsLevel,        /* Absolute level containing segments */
-  Fts3MultiSegReader *pCsr,       /* Chomp all segments opened by this cursor */
-  int *pnRem                      /* Number of segments not deleted */
-){
-  int i;
-  int nRem = 0;
-  int rc = SQLITE_OK;
-
-  for(i=pCsr->nSegment-1; i>=0 && rc==SQLITE_OK; i--){
-    Fts3SegReader *pSeg = 0;
-    int j;
-
-    /* Find the Fts3SegReader object with Fts3SegReader.iIdx==i. It is hiding
-    ** somewhere in the pCsr->apSegment[] array.  */
-    for(j=0; ALWAYS(j<pCsr->nSegment); j++){
-      pSeg = pCsr->apSegment[j];
-      if( pSeg->iIdx==i ) break;
-    }
-    assert( j<pCsr->nSegment && pSeg->iIdx==i );
-
-    if( pSeg->aNode==0 ){
-      /* Seg-reader is at EOF. Remove the entire input segment. */
-      rc = fts3DeleteSegment(p, pSeg);
-      if( rc==SQLITE_OK ){
-        rc = fts3RemoveSegdirEntry(p, iAbsLevel, pSeg->iIdx);
-      }
-      *pnRem = 0;
-    }else{
-      /* The incremental merge did not copy all the data from this 
-      ** segment to the upper level. The segment is modified in place
-      ** so that it contains no keys smaller than zTerm/nTerm. */ 
-      const char *zTerm = pSeg->zTerm;
-      int nTerm = pSeg->nTerm;
-      rc = fts3TruncateSegment(p, iAbsLevel, pSeg->iIdx, zTerm, nTerm);
-      nRem++;
-    }
-  }
-
-  if( rc==SQLITE_OK && nRem!=pCsr->nSegment ){
-    rc = fts3RepackSegdirLevel(p, iAbsLevel);
-  }
-
-  *pnRem = nRem;
-  return rc;
-}
-
-/*
-** Store an incr-merge hint in the database.
-*/
-static int fts3IncrmergeHintStore(Fts3Table *p, Blob *pHint){
-  tdsqlite3_stmt *pReplace = 0;
-  int rc;                         /* Return code */
-
-  rc = fts3SqlStmt(p, SQL_REPLACE_STAT, &pReplace, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int(pReplace, 1, FTS_STAT_INCRMERGEHINT);
-    tdsqlite3_bind_blob(pReplace, 2, pHint->a, pHint->n, SQLITE_STATIC);
-    tdsqlite3_step(pReplace);
-    rc = tdsqlite3_reset(pReplace);
-    tdsqlite3_bind_null(pReplace, 2);
-  }
-
-  return rc;
-}
-
-/*
-** Load an incr-merge hint from the database. The incr-merge hint, if one 
-** exists, is stored in the rowid==1 row of the %_stat table.
-**
-** If successful, populate blob *pHint with the value read from the %_stat
-** table and return SQLITE_OK. Otherwise, if an error occurs, return an
-** SQLite error code.
-*/
-static int fts3IncrmergeHintLoad(Fts3Table *p, Blob *pHint){
-  tdsqlite3_stmt *pSelect = 0;
-  int rc;
-
-  pHint->n = 0;
-  rc = fts3SqlStmt(p, SQL_SELECT_STAT, &pSelect, 0);
-  if( rc==SQLITE_OK ){
-    int rc2;
-    tdsqlite3_bind_int(pSelect, 1, FTS_STAT_INCRMERGEHINT);
-    if( SQLITE_ROW==tdsqlite3_step(pSelect) ){
-      const char *aHint = tdsqlite3_column_blob(pSelect, 0);
-      int nHint = tdsqlite3_column_bytes(pSelect, 0);
-      if( aHint ){
-        blobGrowBuffer(pHint, nHint, &rc);
-        if( rc==SQLITE_OK ){
-          memcpy(pHint->a, aHint, nHint);
-          pHint->n = nHint;
-        }
-      }
-    }
-    rc2 = tdsqlite3_reset(pSelect);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  return rc;
-}
-
-/*
-** If *pRc is not SQLITE_OK when this function is called, it is a no-op.
-** Otherwise, append an entry to the hint stored in blob *pHint. Each entry
-** consists of two varints, the absolute level number of the input segments 
-** and the number of input segments.
-**
-** If successful, leave *pRc set to SQLITE_OK and return. If an error occurs,
-** set *pRc to an SQLite error code before returning.
-*/
-static void fts3IncrmergeHintPush(
-  Blob *pHint,                    /* Hint blob to append to */
-  i64 iAbsLevel,                  /* First varint to store in hint */
-  int nInput,                     /* Second varint to store in hint */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  blobGrowBuffer(pHint, pHint->n + 2*FTS3_VARINT_MAX, pRc);
-  if( *pRc==SQLITE_OK ){
-    pHint->n += tdsqlite3Fts3PutVarint(&pHint->a[pHint->n], iAbsLevel);
-    pHint->n += tdsqlite3Fts3PutVarint(&pHint->a[pHint->n], (i64)nInput);
-  }
-}
-
-/*
-** Read the last entry (most recently pushed) from the hint blob *pHint
-** and then remove the entry. Write the two values read to *piAbsLevel and 
-** *pnInput before returning.
-**
-** If no error occurs, return SQLITE_OK. If the hint blob in *pHint does
-** not contain at least two valid varints, return SQLITE_CORRUPT_VTAB.
-*/
-static int fts3IncrmergeHintPop(Blob *pHint, i64 *piAbsLevel, int *pnInput){
-  const int nHint = pHint->n;
-  int i;
-
-  i = pHint->n-1;
-  if( (pHint->a[i] & 0x80) ) return FTS_CORRUPT_VTAB;
-  while( i>0 && (pHint->a[i-1] & 0x80) ) i--;
-  if( i==0 ) return FTS_CORRUPT_VTAB;
-  i--;
-  while( i>0 && (pHint->a[i-1] & 0x80) ) i--;
-
-  pHint->n = i;
-  i += tdsqlite3Fts3GetVarint(&pHint->a[i], piAbsLevel);
-  i += fts3GetVarint32(&pHint->a[i], pnInput);
-  assert( i<=nHint );
-  if( i!=nHint ) return FTS_CORRUPT_VTAB;
-
-  return SQLITE_OK;
-}
-
-
-/*
-** Attempt an incremental merge that writes nMerge leaf blocks.
-**
-** Incremental merges happen nMin segments at a time. The segments 
-** to be merged are the nMin oldest segments (the ones with the smallest 
-** values for the _segdir.idx field) in the highest level that contains 
-** at least nMin segments. Multiple merges might occur in an attempt to 
-** write the quota of nMerge leaf blocks.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3Incrmerge(Fts3Table *p, int nMerge, int nMin){
-  int rc;                         /* Return code */
-  int nRem = nMerge;              /* Number of leaf pages yet to  be written */
-  Fts3MultiSegReader *pCsr;       /* Cursor used to read input data */
-  Fts3SegFilter *pFilter;         /* Filter used with cursor pCsr */
-  IncrmergeWriter *pWriter;       /* Writer object */
-  int nSeg = 0;                   /* Number of input segments */
-  tdsqlite3_int64 iAbsLevel = 0;    /* Absolute level number to work on */
-  Blob hint = {0, 0, 0};          /* Hint read from %_stat table */
-  int bDirtyHint = 0;             /* True if blob 'hint' has been modified */
-
-  /* Allocate space for the cursor, filter and writer objects */
-  const int nAlloc = sizeof(*pCsr) + sizeof(*pFilter) + sizeof(*pWriter);
-  pWriter = (IncrmergeWriter *)tdsqlite3_malloc(nAlloc);
-  if( !pWriter ) return SQLITE_NOMEM;
-  pFilter = (Fts3SegFilter *)&pWriter[1];
-  pCsr = (Fts3MultiSegReader *)&pFilter[1];
-
-  rc = fts3IncrmergeHintLoad(p, &hint);
-  while( rc==SQLITE_OK && nRem>0 ){
-    const i64 nMod = FTS3_SEGDIR_MAXLEVEL * p->nIndex;
-    tdsqlite3_stmt *pFindLevel = 0; /* SQL used to determine iAbsLevel */
-    int bUseHint = 0;             /* True if attempting to append */
-    int iIdx = 0;                 /* Largest idx in level (iAbsLevel+1) */
-
-    /* Search the %_segdir table for the absolute level with the smallest
-    ** relative level number that contains at least nMin segments, if any.
-    ** If one is found, set iAbsLevel to the absolute level number and
-    ** nSeg to nMin. If no level with at least nMin segments can be found, 
-    ** set nSeg to -1.
-    */
-    rc = fts3SqlStmt(p, SQL_FIND_MERGE_LEVEL, &pFindLevel, 0);
-    tdsqlite3_bind_int(pFindLevel, 1, MAX(2, nMin));
-    if( tdsqlite3_step(pFindLevel)==SQLITE_ROW ){
-      iAbsLevel = tdsqlite3_column_int64(pFindLevel, 0);
-      nSeg = tdsqlite3_column_int(pFindLevel, 1);
-      assert( nSeg>=2 );
-    }else{
-      nSeg = -1;
-    }
-    rc = tdsqlite3_reset(pFindLevel);
-
-    /* If the hint read from the %_stat table is not empty, check if the
-    ** last entry in it specifies a relative level smaller than or equal
-    ** to the level identified by the block above (if any). If so, this 
-    ** iteration of the loop will work on merging at the hinted level.
-    */
-    if( rc==SQLITE_OK && hint.n ){
-      int nHint = hint.n;
-      tdsqlite3_int64 iHintAbsLevel = 0;      /* Hint level */
-      int nHintSeg = 0;                     /* Hint number of segments */
-
-      rc = fts3IncrmergeHintPop(&hint, &iHintAbsLevel, &nHintSeg);
-      if( nSeg<0 || (iAbsLevel % nMod) >= (iHintAbsLevel % nMod) ){
-        /* Based on the scan in the block above, it is known that there
-        ** are no levels with a relative level smaller than that of
-        ** iAbsLevel with more than nSeg segments, or if nSeg is -1, 
-        ** no levels with more than nMin segments. Use this to limit the
-        ** value of nHintSeg to avoid a large memory allocation in case the 
-        ** merge-hint is corrupt*/
-        iAbsLevel = iHintAbsLevel;
-        nSeg = MIN(MAX(nMin,nSeg), nHintSeg);
-        bUseHint = 1;
-        bDirtyHint = 1;
-      }else{
-        /* This undoes the effect of the HintPop() above - so that no entry
-        ** is removed from the hint blob.  */
-        hint.n = nHint;
-      }
-    }
-
-    /* If nSeg is less that zero, then there is no level with at least
-    ** nMin segments and no hint in the %_stat table. No work to do.
-    ** Exit early in this case.  */
-    if( nSeg<=0 ) break;
-
-    /* Open a cursor to iterate through the contents of the oldest nSeg 
-    ** indexes of absolute level iAbsLevel. If this cursor is opened using 
-    ** the 'hint' parameters, it is possible that there are less than nSeg
-    ** segments available in level iAbsLevel. In this case, no work is
-    ** done on iAbsLevel - fall through to the next iteration of the loop 
-    ** to start work on some other level.  */
-    memset(pWriter, 0, nAlloc);
-    pFilter->flags = FTS3_SEGMENT_REQUIRE_POS;
-
-    if( rc==SQLITE_OK ){
-      rc = fts3IncrmergeOutputIdx(p, iAbsLevel, &iIdx);
-      assert( bUseHint==1 || bUseHint==0 );
-      if( iIdx==0 || (bUseHint && iIdx==1) ){
-        int bIgnore = 0;
-        rc = fts3SegmentIsMaxLevel(p, iAbsLevel+1, &bIgnore);
-        if( bIgnore ){
-          pFilter->flags |= FTS3_SEGMENT_IGNORE_EMPTY;
-        }
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      rc = fts3IncrmergeCsr(p, iAbsLevel, nSeg, pCsr);
-    }
-    if( SQLITE_OK==rc && pCsr->nSegment==nSeg
-     && SQLITE_OK==(rc = tdsqlite3Fts3SegReaderStart(p, pCsr, pFilter))
-    ){
-      int bEmpty = 0;
-      rc = tdsqlite3Fts3SegReaderStep(p, pCsr);
-      if( rc==SQLITE_OK ){
-        bEmpty = 1;
-      }else if( rc!=SQLITE_ROW ){
-        tdsqlite3Fts3SegReaderFinish(pCsr);
-        break;
-      }
-      if( bUseHint && iIdx>0 ){
-        const char *zKey = pCsr->zTerm;
-        int nKey = pCsr->nTerm;
-        rc = fts3IncrmergeLoad(p, iAbsLevel, iIdx-1, zKey, nKey, pWriter);
-      }else{
-        rc = fts3IncrmergeWriter(p, iAbsLevel, iIdx, pCsr, pWriter);
-      }
-
-      if( rc==SQLITE_OK && pWriter->nLeafEst ){
-        fts3LogMerge(nSeg, iAbsLevel);
-        if( bEmpty==0 ){
-          do {
-            rc = fts3IncrmergeAppend(p, pWriter, pCsr);
-            if( rc==SQLITE_OK ) rc = tdsqlite3Fts3SegReaderStep(p, pCsr);
-            if( pWriter->nWork>=nRem && rc==SQLITE_ROW ) rc = SQLITE_OK;
-          }while( rc==SQLITE_ROW );
-        }
-
-        /* Update or delete the input segments */
-        if( rc==SQLITE_OK ){
-          nRem -= (1 + pWriter->nWork);
-          rc = fts3IncrmergeChomp(p, iAbsLevel, pCsr, &nSeg);
-          if( nSeg!=0 ){
-            bDirtyHint = 1;
-            fts3IncrmergeHintPush(&hint, iAbsLevel, nSeg, &rc);
-          }
-        }
-      }
-
-      if( nSeg!=0 ){
-        pWriter->nLeafData = pWriter->nLeafData * -1;
-      }
-      fts3IncrmergeRelease(p, pWriter, &rc);
-      if( nSeg==0 && pWriter->bNoLeafData==0 ){
-        fts3PromoteSegments(p, iAbsLevel+1, pWriter->nLeafData);
-      }
-    }
-
-    tdsqlite3Fts3SegReaderFinish(pCsr);
-  }
-
-  /* Write the hint values into the %_stat table for the next incr-merger */
-  if( bDirtyHint && rc==SQLITE_OK ){
-    rc = fts3IncrmergeHintStore(p, &hint);
-  }
-
-  tdsqlite3_free(pWriter);
-  tdsqlite3_free(hint.a);
-  return rc;
-}
-
-/*
-** Convert the text beginning at *pz into an integer and return
-** its value.  Advance *pz to point to the first character past
-** the integer.
-**
-** This function used for parameters to merge= and incrmerge=
-** commands. 
-*/
-static int fts3Getint(const char **pz){
-  const char *z = *pz;
-  int i = 0;
-  while( (*z)>='0' && (*z)<='9' && i<214748363 ) i = 10*i + *(z++) - '0';
-  *pz = z;
-  return i;
-}
-
-/*
-** Process statements of the form:
-**
-**    INSERT INTO table(table) VALUES('merge=A,B');
-**
-** A and B are integers that decode to be the number of leaf pages
-** written for the merge, and the minimum number of segments on a level
-** before it will be selected for a merge, respectively.
-*/
-static int fts3DoIncrmerge(
-  Fts3Table *p,                   /* FTS3 table handle */
-  const char *zParam              /* Nul-terminated string containing "A,B" */
-){
-  int rc;
-  int nMin = (MergeCount(p) / 2);
-  int nMerge = 0;
-  const char *z = zParam;
-
-  /* Read the first integer value */
-  nMerge = fts3Getint(&z);
-
-  /* If the first integer value is followed by a ',',  read the second
-  ** integer value. */
-  if( z[0]==',' && z[1]!='\0' ){
-    z++;
-    nMin = fts3Getint(&z);
-  }
-
-  if( z[0]!='\0' || nMin<2 ){
-    rc = SQLITE_ERROR;
-  }else{
-    rc = SQLITE_OK;
-    if( !p->bHasStat ){
-      assert( p->bFts4==0 );
-      tdsqlite3Fts3CreateStatTable(&rc, p);
-    }
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3Fts3Incrmerge(p, nMerge, nMin);
-    }
-    tdsqlite3Fts3SegmentsClose(p);
-  }
-  return rc;
-}
-
-/*
-** Process statements of the form:
-**
-**    INSERT INTO table(table) VALUES('automerge=X');
-**
-** where X is an integer.  X==0 means to turn automerge off.  X!=0 means
-** turn it on.  The setting is persistent.
-*/
-static int fts3DoAutoincrmerge(
-  Fts3Table *p,                   /* FTS3 table handle */
-  const char *zParam              /* Nul-terminated string containing boolean */
-){
-  int rc = SQLITE_OK;
-  tdsqlite3_stmt *pStmt = 0;
-  p->nAutoincrmerge = fts3Getint(&zParam);
-  if( p->nAutoincrmerge==1 || p->nAutoincrmerge>MergeCount(p) ){
-    p->nAutoincrmerge = 8;
-  }
-  if( !p->bHasStat ){
-    assert( p->bFts4==0 );
-    tdsqlite3Fts3CreateStatTable(&rc, p);
-    if( rc ) return rc;
-  }
-  rc = fts3SqlStmt(p, SQL_REPLACE_STAT, &pStmt, 0);
-  if( rc ) return rc;
-  tdsqlite3_bind_int(pStmt, 1, FTS_STAT_AUTOINCRMERGE);
-  tdsqlite3_bind_int(pStmt, 2, p->nAutoincrmerge);
-  tdsqlite3_step(pStmt);
-  rc = tdsqlite3_reset(pStmt);
-  return rc;
-}
-
-/*
-** Return a 64-bit checksum for the FTS index entry specified by the
-** arguments to this function.
-*/
-static u64 fts3ChecksumEntry(
-  const char *zTerm,              /* Pointer to buffer containing term */
-  int nTerm,                      /* Size of zTerm in bytes */
-  int iLangid,                    /* Language id for current row */
-  int iIndex,                     /* Index (0..Fts3Table.nIndex-1) */
-  i64 iDocid,                     /* Docid for current row. */
-  int iCol,                       /* Column number */
-  int iPos                        /* Position */
-){
-  int i;
-  u64 ret = (u64)iDocid;
-
-  ret += (ret<<3) + iLangid;
-  ret += (ret<<3) + iIndex;
-  ret += (ret<<3) + iCol;
-  ret += (ret<<3) + iPos;
-  for(i=0; i<nTerm; i++) ret += (ret<<3) + zTerm[i];
-
-  return ret;
-}
-
-/*
-** Return a checksum of all entries in the FTS index that correspond to
-** language id iLangid. The checksum is calculated by XORing the checksums
-** of each individual entry (see fts3ChecksumEntry()) together.
-**
-** If successful, the checksum value is returned and *pRc set to SQLITE_OK.
-** Otherwise, if an error occurs, *pRc is set to an SQLite error code. The
-** return value is undefined in this case.
-*/
-static u64 fts3ChecksumIndex(
-  Fts3Table *p,                   /* FTS3 table handle */
-  int iLangid,                    /* Language id to return cksum for */
-  int iIndex,                     /* Index to cksum (0..p->nIndex-1) */
-  int *pRc                        /* OUT: Return code */
-){
-  Fts3SegFilter filter;
-  Fts3MultiSegReader csr;
-  int rc;
-  u64 cksum = 0;
-
-  assert( *pRc==SQLITE_OK );
-
-  memset(&filter, 0, sizeof(filter));
-  memset(&csr, 0, sizeof(csr));
-  filter.flags =  FTS3_SEGMENT_REQUIRE_POS|FTS3_SEGMENT_IGNORE_EMPTY;
-  filter.flags |= FTS3_SEGMENT_SCAN;
-
-  rc = tdsqlite3Fts3SegReaderCursor(
-      p, iLangid, iIndex, FTS3_SEGCURSOR_ALL, 0, 0, 0, 1,&csr
-  );
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts3SegReaderStart(p, &csr, &filter);
-  }
-
-  if( rc==SQLITE_OK ){
-    while( SQLITE_ROW==(rc = tdsqlite3Fts3SegReaderStep(p, &csr)) ){
-      char *pCsr = csr.aDoclist;
-      char *pEnd = &pCsr[csr.nDoclist];
-
-      i64 iDocid = 0;
-      i64 iCol = 0;
-      u64 iPos = 0;
-
-      pCsr += tdsqlite3Fts3GetVarint(pCsr, &iDocid);
-      while( pCsr<pEnd ){
-        u64 iVal = 0;
-        pCsr += tdsqlite3Fts3GetVarintU(pCsr, &iVal);
-        if( pCsr<pEnd ){
-          if( iVal==0 || iVal==1 ){
-            iCol = 0;
-            iPos = 0;
-            if( iVal ){
-              pCsr += tdsqlite3Fts3GetVarint(pCsr, &iCol);
-            }else{
-              pCsr += tdsqlite3Fts3GetVarintU(pCsr, &iVal);
-              if( p->bDescIdx ){
-                iDocid = (i64)((u64)iDocid - iVal);
-              }else{
-                iDocid = (i64)((u64)iDocid + iVal);
-              }
-            }
-          }else{
-            iPos += (iVal - 2);
-            cksum = cksum ^ fts3ChecksumEntry(
-                csr.zTerm, csr.nTerm, iLangid, iIndex, iDocid,
-                (int)iCol, (int)iPos
-            );
-          }
-        }
-      }
-    }
-  }
-  tdsqlite3Fts3SegReaderFinish(&csr);
-
-  *pRc = rc;
-  return cksum;
-}
-
-/*
-** Check if the contents of the FTS index match the current contents of the
-** content table. If no error occurs and the contents do match, set *pbOk
-** to true and return SQLITE_OK. Or if the contents do not match, set *pbOk
-** to false before returning.
-**
-** If an error occurs (e.g. an OOM or IO error), return an SQLite error 
-** code. The final value of *pbOk is undefined in this case.
-*/
-static int fts3IntegrityCheck(Fts3Table *p, int *pbOk){
-  int rc = SQLITE_OK;             /* Return code */
-  u64 cksum1 = 0;                 /* Checksum based on FTS index contents */
-  u64 cksum2 = 0;                 /* Checksum based on %_content contents */
-  tdsqlite3_stmt *pAllLangid = 0;   /* Statement to return all language-ids */
-
-  /* This block calculates the checksum according to the FTS index. */
-  rc = fts3SqlStmt(p, SQL_SELECT_ALL_LANGID, &pAllLangid, 0);
-  if( rc==SQLITE_OK ){
-    int rc2;
-    tdsqlite3_bind_int(pAllLangid, 1, p->iPrevLangid);
-    tdsqlite3_bind_int(pAllLangid, 2, p->nIndex);
-    while( rc==SQLITE_OK && tdsqlite3_step(pAllLangid)==SQLITE_ROW ){
-      int iLangid = tdsqlite3_column_int(pAllLangid, 0);
-      int i;
-      for(i=0; i<p->nIndex; i++){
-        cksum1 = cksum1 ^ fts3ChecksumIndex(p, iLangid, i, &rc);
-      }
-    }
-    rc2 = tdsqlite3_reset(pAllLangid);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  /* This block calculates the checksum according to the %_content table */
-  if( rc==SQLITE_OK ){
-    tdsqlite3_tokenizer_module const *pModule = p->pTokenizer->pModule;
-    tdsqlite3_stmt *pStmt = 0;
-    char *zSql;
-   
-    zSql = tdsqlite3_mprintf("SELECT %s" , p->zReadExprlist);
-    if( !zSql ){
-      rc = SQLITE_NOMEM;
-    }else{
-      rc = tdsqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
-      tdsqlite3_free(zSql);
-    }
-
-    while( rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      i64 iDocid = tdsqlite3_column_int64(pStmt, 0);
-      int iLang = langidFromSelect(p, pStmt);
-      int iCol;
-
-      for(iCol=0; rc==SQLITE_OK && iCol<p->nColumn; iCol++){
-        if( p->abNotindexed[iCol]==0 ){
-          const char *zText = (const char *)tdsqlite3_column_text(pStmt, iCol+1);
-          tdsqlite3_tokenizer_cursor *pT = 0;
-
-          rc = tdsqlite3Fts3OpenTokenizer(p->pTokenizer, iLang, zText, -1, &pT);
-          while( rc==SQLITE_OK ){
-            char const *zToken;       /* Buffer containing token */
-            int nToken = 0;           /* Number of bytes in token */
-            int iDum1 = 0, iDum2 = 0; /* Dummy variables */
-            int iPos = 0;             /* Position of token in zText */
-
-            rc = pModule->xNext(pT, &zToken, &nToken, &iDum1, &iDum2, &iPos);
-            if( rc==SQLITE_OK ){
-              int i;
-              cksum2 = cksum2 ^ fts3ChecksumEntry(
-                  zToken, nToken, iLang, 0, iDocid, iCol, iPos
-              );
-              for(i=1; i<p->nIndex; i++){
-                if( p->aIndex[i].nPrefix<=nToken ){
-                  cksum2 = cksum2 ^ fts3ChecksumEntry(
-                      zToken, p->aIndex[i].nPrefix, iLang, i, iDocid, iCol, iPos
-                  );
-                }
-              }
-            }
-          }
-          if( pT ) pModule->xClose(pT);
-          if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-        }
-      }
-    }
-
-    tdsqlite3_finalize(pStmt);
-  }
-
-  *pbOk = (cksum1==cksum2);
-  return rc;
-}
-
-/*
-** Run the integrity-check. If no error occurs and the current contents of
-** the FTS index are correct, return SQLITE_OK. Or, if the contents of the
-** FTS index are incorrect, return SQLITE_CORRUPT_VTAB.
-**
-** Or, if an error (e.g. an OOM or IO error) occurs, return an SQLite 
-** error code.
-**
-** The integrity-check works as follows. For each token and indexed token
-** prefix in the document set, a 64-bit checksum is calculated (by code
-** in fts3ChecksumEntry()) based on the following:
-**
-**     + The index number (0 for the main index, 1 for the first prefix
-**       index etc.),
-**     + The token (or token prefix) text itself, 
-**     + The language-id of the row it appears in,
-**     + The docid of the row it appears in,
-**     + The column it appears in, and
-**     + The tokens position within that column.
-**
-** The checksums for all entries in the index are XORed together to create
-** a single checksum for the entire index.
-**
-** The integrity-check code calculates the same checksum in two ways:
-**
-**     1. By scanning the contents of the FTS index, and 
-**     2. By scanning and tokenizing the content table.
-**
-** If the two checksums are identical, the integrity-check is deemed to have
-** passed.
-*/
-static int fts3DoIntegrityCheck(
-  Fts3Table *p                    /* FTS3 table handle */
-){
-  int rc;
-  int bOk = 0;
-  rc = fts3IntegrityCheck(p, &bOk);
-  if( rc==SQLITE_OK && bOk==0 ) rc = FTS_CORRUPT_VTAB;
-  return rc;
-}
-
-/*
-** Handle a 'special' INSERT of the form:
-**
-**   "INSERT INTO tbl(tbl) VALUES(<expr>)"
-**
-** Argument pVal contains the result of <expr>. Currently the only 
-** meaningful value to insert is the text 'optimize'.
-*/
-static int fts3SpecialInsert(Fts3Table *p, tdsqlite3_value *pVal){
-  int rc = SQLITE_ERROR;           /* Return Code */
-  const char *zVal = (const char *)tdsqlite3_value_text(pVal);
-  int nVal = tdsqlite3_value_bytes(pVal);
-
-  if( !zVal ){
-    return SQLITE_NOMEM;
-  }else if( nVal==8 && 0==tdsqlite3_strnicmp(zVal, "optimize", 8) ){
-    rc = fts3DoOptimize(p, 0);
-  }else if( nVal==7 && 0==tdsqlite3_strnicmp(zVal, "rebuild", 7) ){
-    rc = fts3DoRebuild(p);
-  }else if( nVal==15 && 0==tdsqlite3_strnicmp(zVal, "integrity-check", 15) ){
-    rc = fts3DoIntegrityCheck(p);
-  }else if( nVal>6 && 0==tdsqlite3_strnicmp(zVal, "merge=", 6) ){
-    rc = fts3DoIncrmerge(p, &zVal[6]);
-  }else if( nVal>10 && 0==tdsqlite3_strnicmp(zVal, "automerge=", 10) ){
-    rc = fts3DoAutoincrmerge(p, &zVal[10]);
-#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
-  }else{
-    int v;
-    if( nVal>9 && 0==tdsqlite3_strnicmp(zVal, "nodesize=", 9) ){
-      v = atoi(&zVal[9]);
-      if( v>=24 && v<=p->nPgsz-35 ) p->nNodeSize = v;
-      rc = SQLITE_OK;
-    }else if( nVal>11 && 0==tdsqlite3_strnicmp(zVal, "maxpending=", 9) ){
-      v = atoi(&zVal[11]);
-      if( v>=64 && v<=FTS3_MAX_PENDING_DATA ) p->nMaxPendingData = v;
-      rc = SQLITE_OK;
-    }else if( nVal>21 && 0==tdsqlite3_strnicmp(zVal,"test-no-incr-doclist=",21) ){
-      p->bNoIncrDoclist = atoi(&zVal[21]);
-      rc = SQLITE_OK;
-    }else if( nVal>11 && 0==tdsqlite3_strnicmp(zVal,"mergecount=",11) ){
-      v = atoi(&zVal[11]);
-      if( v>=4 && v<=FTS3_MERGE_COUNT && (v&1)==0 ) p->nMergeCount = v;
-      rc = SQLITE_OK;
-    }
-#endif
-  }
-  return rc;
-}
-
-#ifndef SQLITE_DISABLE_FTS4_DEFERRED
-/*
-** Delete all cached deferred doclists. Deferred doclists are cached
-** (allocated) by the tdsqlite3Fts3CacheDeferredDoclists() function.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3FreeDeferredDoclists(Fts3Cursor *pCsr){
-  Fts3DeferredToken *pDef;
-  for(pDef=pCsr->pDeferred; pDef; pDef=pDef->pNext){
-    fts3PendingListDelete(pDef->pList);
-    pDef->pList = 0;
-  }
-}
-
-/*
-** Free all entries in the pCsr->pDeffered list. Entries are added to 
-** this list using tdsqlite3Fts3DeferToken().
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3FreeDeferredTokens(Fts3Cursor *pCsr){
-  Fts3DeferredToken *pDef;
-  Fts3DeferredToken *pNext;
-  for(pDef=pCsr->pDeferred; pDef; pDef=pNext){
-    pNext = pDef->pNext;
-    fts3PendingListDelete(pDef->pList);
-    tdsqlite3_free(pDef);
-  }
-  pCsr->pDeferred = 0;
-}
-
-/*
-** Generate deferred-doclists for all tokens in the pCsr->pDeferred list
-** based on the row that pCsr currently points to.
-**
-** A deferred-doclist is like any other doclist with position information
-** included, except that it only contains entries for a single row of the
-** table, not for all rows.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3CacheDeferredDoclists(Fts3Cursor *pCsr){
-  int rc = SQLITE_OK;             /* Return code */
-  if( pCsr->pDeferred ){
-    int i;                        /* Used to iterate through table columns */
-    tdsqlite3_int64 iDocid;         /* Docid of the row pCsr points to */
-    Fts3DeferredToken *pDef;      /* Used to iterate through deferred tokens */
-  
-    Fts3Table *p = (Fts3Table *)pCsr->base.pVtab;
-    tdsqlite3_tokenizer *pT = p->pTokenizer;
-    tdsqlite3_tokenizer_module const *pModule = pT->pModule;
-   
-    assert( pCsr->isRequireSeek==0 );
-    iDocid = tdsqlite3_column_int64(pCsr->pStmt, 0);
-  
-    for(i=0; i<p->nColumn && rc==SQLITE_OK; i++){
-      if( p->abNotindexed[i]==0 ){
-        const char *zText = (const char *)tdsqlite3_column_text(pCsr->pStmt, i+1);
-        tdsqlite3_tokenizer_cursor *pTC = 0;
-
-        rc = tdsqlite3Fts3OpenTokenizer(pT, pCsr->iLangid, zText, -1, &pTC);
-        while( rc==SQLITE_OK ){
-          char const *zToken;       /* Buffer containing token */
-          int nToken = 0;           /* Number of bytes in token */
-          int iDum1 = 0, iDum2 = 0; /* Dummy variables */
-          int iPos = 0;             /* Position of token in zText */
-
-          rc = pModule->xNext(pTC, &zToken, &nToken, &iDum1, &iDum2, &iPos);
-          for(pDef=pCsr->pDeferred; pDef && rc==SQLITE_OK; pDef=pDef->pNext){
-            Fts3PhraseToken *pPT = pDef->pToken;
-            if( (pDef->iCol>=p->nColumn || pDef->iCol==i)
-                && (pPT->bFirst==0 || iPos==0)
-                && (pPT->n==nToken || (pPT->isPrefix && pPT->n<nToken))
-                && (0==memcmp(zToken, pPT->z, pPT->n))
-              ){
-              fts3PendingListAppend(&pDef->pList, iDocid, i, iPos, &rc);
-            }
-          }
-        }
-        if( pTC ) pModule->xClose(pTC);
-        if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-      }
-    }
-
-    for(pDef=pCsr->pDeferred; pDef && rc==SQLITE_OK; pDef=pDef->pNext){
-      if( pDef->pList ){
-        rc = fts3PendingListAppendVarint(&pDef->pList, 0);
-      }
-    }
-  }
-
-  return rc;
-}
-
-SQLITE_PRIVATE int tdsqlite3Fts3DeferredTokenList(
-  Fts3DeferredToken *p, 
-  char **ppData, 
-  int *pnData
-){
-  char *pRet;
-  int nSkip;
-  tdsqlite3_int64 dummy;
-
-  *ppData = 0;
-  *pnData = 0;
-
-  if( p->pList==0 ){
-    return SQLITE_OK;
-  }
-
-  pRet = (char *)tdsqlite3_malloc(p->pList->nData);
-  if( !pRet ) return SQLITE_NOMEM;
-
-  nSkip = tdsqlite3Fts3GetVarint(p->pList->aData, &dummy);
-  *pnData = p->pList->nData - nSkip;
-  *ppData = pRet;
-  
-  memcpy(pRet, &p->pList->aData[nSkip], *pnData);
-  return SQLITE_OK;
-}
-
-/*
-** Add an entry for token pToken to the pCsr->pDeferred list.
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3DeferToken(
-  Fts3Cursor *pCsr,               /* Fts3 table cursor */
-  Fts3PhraseToken *pToken,        /* Token to defer */
-  int iCol                        /* Column that token must appear in (or -1) */
-){
-  Fts3DeferredToken *pDeferred;
-  pDeferred = tdsqlite3_malloc(sizeof(*pDeferred));
-  if( !pDeferred ){
-    return SQLITE_NOMEM;
-  }
-  memset(pDeferred, 0, sizeof(*pDeferred));
-  pDeferred->pToken = pToken;
-  pDeferred->pNext = pCsr->pDeferred; 
-  pDeferred->iCol = iCol;
-  pCsr->pDeferred = pDeferred;
-
-  assert( pToken->pDeferred==0 );
-  pToken->pDeferred = pDeferred;
-
-  return SQLITE_OK;
-}
-#endif
-
-/*
-** SQLite value pRowid contains the rowid of a row that may or may not be
-** present in the FTS3 table. If it is, delete it and adjust the contents
-** of subsiduary data structures accordingly.
-*/
-static int fts3DeleteByRowid(
-  Fts3Table *p, 
-  tdsqlite3_value *pRowid, 
-  int *pnChng,                    /* IN/OUT: Decrement if row is deleted */
-  u32 *aSzDel
-){
-  int rc = SQLITE_OK;             /* Return code */
-  int bFound = 0;                 /* True if *pRowid really is in the table */
-
-  fts3DeleteTerms(&rc, p, pRowid, aSzDel, &bFound);
-  if( bFound && rc==SQLITE_OK ){
-    int isEmpty = 0;              /* Deleting *pRowid leaves the table empty */
-    rc = fts3IsEmpty(p, pRowid, &isEmpty);
-    if( rc==SQLITE_OK ){
-      if( isEmpty ){
-        /* Deleting this row means the whole table is empty. In this case
-        ** delete the contents of all three tables and throw away any
-        ** data in the pendingTerms hash table.  */
-        rc = fts3DeleteAll(p, 1);
-        *pnChng = 0;
-        memset(aSzDel, 0, sizeof(u32) * (p->nColumn+1) * 2);
-      }else{
-        *pnChng = *pnChng - 1;
-        if( p->zContentTbl==0 ){
-          fts3SqlExec(&rc, p, SQL_DELETE_CONTENT, &pRowid);
-        }
-        if( p->bHasDocsize ){
-          fts3SqlExec(&rc, p, SQL_DELETE_DOCSIZE, &pRowid);
-        }
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** This function does the work for the xUpdate method of FTS3 virtual
-** tables. The schema of the virtual table being:
-**
-**     CREATE TABLE <table name>( 
-**       <user columns>,
-**       <table name> HIDDEN, 
-**       docid HIDDEN, 
-**       <langid> HIDDEN
-**     );
-**
-** 
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3UpdateMethod(
-  tdsqlite3_vtab *pVtab,            /* FTS3 vtab object */
-  int nArg,                       /* Size of argument array */
-  tdsqlite3_value **apVal,          /* Array of arguments */
-  sqlite_int64 *pRowid            /* OUT: The affected (or effected) rowid */
-){
-  Fts3Table *p = (Fts3Table *)pVtab;
-  int rc = SQLITE_OK;             /* Return Code */
-  u32 *aSzIns = 0;                /* Sizes of inserted documents */
-  u32 *aSzDel = 0;                /* Sizes of deleted documents */
-  int nChng = 0;                  /* Net change in number of documents */
-  int bInsertDone = 0;
-
-  /* At this point it must be known if the %_stat table exists or not.
-  ** So bHasStat may not be 2.  */
-  assert( p->bHasStat==0 || p->bHasStat==1 );
-
-  assert( p->pSegments==0 );
-  assert( 
-      nArg==1                     /* DELETE operations */
-   || nArg==(2 + p->nColumn + 3)  /* INSERT or UPDATE operations */
-  );
-
-  /* Check for a "special" INSERT operation. One of the form:
-  **
-  **   INSERT INTO xyz(xyz) VALUES('command');
-  */
-  if( nArg>1 
-   && tdsqlite3_value_type(apVal[0])==SQLITE_NULL 
-   && tdsqlite3_value_type(apVal[p->nColumn+2])!=SQLITE_NULL 
-  ){
-    rc = fts3SpecialInsert(p, apVal[p->nColumn+2]);
-    goto update_out;
-  }
-
-  if( nArg>1 && tdsqlite3_value_int(apVal[2 + p->nColumn + 2])<0 ){
-    rc = SQLITE_CONSTRAINT;
-    goto update_out;
-  }
-
-  /* Allocate space to hold the change in document sizes */
-  aSzDel = tdsqlite3_malloc64(sizeof(aSzDel[0])*((tdsqlite3_int64)p->nColumn+1)*2);
-  if( aSzDel==0 ){
-    rc = SQLITE_NOMEM;
-    goto update_out;
-  }
-  aSzIns = &aSzDel[p->nColumn+1];
-  memset(aSzDel, 0, sizeof(aSzDel[0])*(p->nColumn+1)*2);
-
-  rc = fts3Writelock(p);
-  if( rc!=SQLITE_OK ) goto update_out;
-
-  /* If this is an INSERT operation, or an UPDATE that modifies the rowid
-  ** value, then this operation requires constraint handling.
-  **
-  ** If the on-conflict mode is REPLACE, this means that the existing row
-  ** should be deleted from the database before inserting the new row. Or,
-  ** if the on-conflict mode is other than REPLACE, then this method must
-  ** detect the conflict and return SQLITE_CONSTRAINT before beginning to
-  ** modify the database file.
-  */
-  if( nArg>1 && p->zContentTbl==0 ){
-    /* Find the value object that holds the new rowid value. */
-    tdsqlite3_value *pNewRowid = apVal[3+p->nColumn];
-    if( tdsqlite3_value_type(pNewRowid)==SQLITE_NULL ){
-      pNewRowid = apVal[1];
-    }
-
-    if( tdsqlite3_value_type(pNewRowid)!=SQLITE_NULL && ( 
-        tdsqlite3_value_type(apVal[0])==SQLITE_NULL
-     || tdsqlite3_value_int64(apVal[0])!=tdsqlite3_value_int64(pNewRowid)
-    )){
-      /* The new rowid is not NULL (in this case the rowid will be
-      ** automatically assigned and there is no chance of a conflict), and 
-      ** the statement is either an INSERT or an UPDATE that modifies the
-      ** rowid column. So if the conflict mode is REPLACE, then delete any
-      ** existing row with rowid=pNewRowid. 
-      **
-      ** Or, if the conflict mode is not REPLACE, insert the new record into 
-      ** the %_content table. If we hit the duplicate rowid constraint (or any
-      ** other error) while doing so, return immediately.
-      **
-      ** This branch may also run if pNewRowid contains a value that cannot
-      ** be losslessly converted to an integer. In this case, the eventual 
-      ** call to fts3InsertData() (either just below or further on in this
-      ** function) will return SQLITE_MISMATCH. If fts3DeleteByRowid is 
-      ** invoked, it will delete zero rows (since no row will have
-      ** docid=$pNewRowid if $pNewRowid is not an integer value).
-      */
-      if( tdsqlite3_vtab_on_conflict(p->db)==SQLITE_REPLACE ){
-        rc = fts3DeleteByRowid(p, pNewRowid, &nChng, aSzDel);
-      }else{
-        rc = fts3InsertData(p, apVal, pRowid);
-        bInsertDone = 1;
-      }
-    }
-  }
-  if( rc!=SQLITE_OK ){
-    goto update_out;
-  }
-
-  /* If this is a DELETE or UPDATE operation, remove the old record. */
-  if( tdsqlite3_value_type(apVal[0])!=SQLITE_NULL ){
-    assert( tdsqlite3_value_type(apVal[0])==SQLITE_INTEGER );
-    rc = fts3DeleteByRowid(p, apVal[0], &nChng, aSzDel);
-  }
-  
-  /* If this is an INSERT or UPDATE operation, insert the new record. */
-  if( nArg>1 && rc==SQLITE_OK ){
-    int iLangid = tdsqlite3_value_int(apVal[2 + p->nColumn + 2]);
-    if( bInsertDone==0 ){
-      rc = fts3InsertData(p, apVal, pRowid);
-      if( rc==SQLITE_CONSTRAINT && p->zContentTbl==0 ){
-        rc = FTS_CORRUPT_VTAB;
-      }
-    }
-    if( rc==SQLITE_OK ){
-      rc = fts3PendingTermsDocid(p, 0, iLangid, *pRowid);
-    }
-    if( rc==SQLITE_OK ){
-      assert( p->iPrevDocid==*pRowid );
-      rc = fts3InsertTerms(p, iLangid, apVal, aSzIns);
-    }
-    if( p->bHasDocsize ){
-      fts3InsertDocsize(&rc, p, aSzIns);
-    }
-    nChng++;
-  }
-
-  if( p->bFts4 ){
-    fts3UpdateDocTotals(&rc, p, aSzIns, aSzDel, nChng);
-  }
-
- update_out:
-  tdsqlite3_free(aSzDel);
-  tdsqlite3Fts3SegmentsClose(p);
-  return rc;
-}
-
-/* 
-** Flush any data in the pending-terms hash table to disk. If successful,
-** merge all segments in the database (including the new segment, if 
-** there was any data to flush) into a single segment. 
-*/
-SQLITE_PRIVATE int tdsqlite3Fts3Optimize(Fts3Table *p){
-  int rc;
-  rc = tdsqlite3_exec(p->db, "SAVEPOINT fts3", 0, 0, 0);
-  if( rc==SQLITE_OK ){
-    rc = fts3DoOptimize(p, 1);
-    if( rc==SQLITE_OK || rc==SQLITE_DONE ){
-      int rc2 = tdsqlite3_exec(p->db, "RELEASE fts3", 0, 0, 0);
-      if( rc2!=SQLITE_OK ) rc = rc2;
-    }else{
-      tdsqlite3_exec(p->db, "ROLLBACK TO fts3", 0, 0, 0);
-      tdsqlite3_exec(p->db, "RELEASE fts3", 0, 0, 0);
-    }
-  }
-  tdsqlite3Fts3SegmentsClose(p);
-  return rc;
-}
-
-#endif
-
-/************** End of fts3_write.c ******************************************/
-/************** Begin file fts3_snippet.c ************************************/
-/*
-** 2009 Oct 23
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-*/
-
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <string.h> */
-/* #include <assert.h> */
-
-/*
-** Characters that may appear in the second argument to matchinfo().
-*/
-#define FTS3_MATCHINFO_NPHRASE   'p'        /* 1 value */
-#define FTS3_MATCHINFO_NCOL      'c'        /* 1 value */
-#define FTS3_MATCHINFO_NDOC      'n'        /* 1 value */
-#define FTS3_MATCHINFO_AVGLENGTH 'a'        /* nCol values */
-#define FTS3_MATCHINFO_LENGTH    'l'        /* nCol values */
-#define FTS3_MATCHINFO_LCS       's'        /* nCol values */
-#define FTS3_MATCHINFO_HITS      'x'        /* 3*nCol*nPhrase values */
-#define FTS3_MATCHINFO_LHITS     'y'        /* nCol*nPhrase values */
-#define FTS3_MATCHINFO_LHITS_BM  'b'        /* nCol*nPhrase values */
-
-/*
-** The default value for the second argument to matchinfo(). 
-*/
-#define FTS3_MATCHINFO_DEFAULT   "pcx"
-
-
-/*
-** Used as an fts3ExprIterate() context when loading phrase doclists to
-** Fts3Expr.aDoclist[]/nDoclist.
-*/
-typedef struct LoadDoclistCtx LoadDoclistCtx;
-struct LoadDoclistCtx {
-  Fts3Cursor *pCsr;               /* FTS3 Cursor */
-  int nPhrase;                    /* Number of phrases seen so far */
-  int nToken;                     /* Number of tokens seen so far */
-};
-
-/*
-** The following types are used as part of the implementation of the 
-** fts3BestSnippet() routine.
-*/
-typedef struct SnippetIter SnippetIter;
-typedef struct SnippetPhrase SnippetPhrase;
-typedef struct SnippetFragment SnippetFragment;
-
-struct SnippetIter {
-  Fts3Cursor *pCsr;               /* Cursor snippet is being generated from */
-  int iCol;                       /* Extract snippet from this column */
-  int nSnippet;                   /* Requested snippet length (in tokens) */
-  int nPhrase;                    /* Number of phrases in query */
-  SnippetPhrase *aPhrase;         /* Array of size nPhrase */
-  int iCurrent;                   /* First token of current snippet */
-};
-
-struct SnippetPhrase {
-  int nToken;                     /* Number of tokens in phrase */
-  char *pList;                    /* Pointer to start of phrase position list */
-  int iHead;                      /* Next value in position list */
-  char *pHead;                    /* Position list data following iHead */
-  int iTail;                      /* Next value in trailing position list */
-  char *pTail;                    /* Position list data following iTail */
-};
-
-struct SnippetFragment {
-  int iCol;                       /* Column snippet is extracted from */
-  int iPos;                       /* Index of first token in snippet */
-  u64 covered;                    /* Mask of query phrases covered */
-  u64 hlmask;                     /* Mask of snippet terms to highlight */
-};
-
-/*
-** This type is used as an fts3ExprIterate() context object while 
-** accumulating the data returned by the matchinfo() function.
-*/
-typedef struct MatchInfo MatchInfo;
-struct MatchInfo {
-  Fts3Cursor *pCursor;            /* FTS3 Cursor */
-  int nCol;                       /* Number of columns in table */
-  int nPhrase;                    /* Number of matchable phrases in query */
-  tdsqlite3_int64 nDoc;             /* Number of docs in database */
-  char flag;
-  u32 *aMatchinfo;                /* Pre-allocated buffer */
-};
-
-/*
-** An instance of this structure is used to manage a pair of buffers, each
-** (nElem * sizeof(u32)) bytes in size. See the MatchinfoBuffer code below
-** for details.
-*/
-struct MatchinfoBuffer {
-  u8 aRef[3];
-  int nElem;
-  int bGlobal;                    /* Set if global data is loaded */
-  char *zMatchinfo;
-  u32 aMatchinfo[1];
-};
-
-
-/*
-** The snippet() and offsets() functions both return text values. An instance
-** of the following structure is used to accumulate those values while the
-** functions are running. See fts3StringAppend() for details.
-*/
-typedef struct StrBuffer StrBuffer;
-struct StrBuffer {
-  char *z;                        /* Pointer to buffer containing string */
-  int n;                          /* Length of z in bytes (excl. nul-term) */
-  int nAlloc;                     /* Allocated size of buffer z in bytes */
-};
-
-
-/*************************************************************************
-** Start of MatchinfoBuffer code.
-*/
-
-/*
-** Allocate a two-slot MatchinfoBuffer object.
-*/
-static MatchinfoBuffer *fts3MIBufferNew(size_t nElem, const char *zMatchinfo){
-  MatchinfoBuffer *pRet;
-  tdsqlite3_int64 nByte = sizeof(u32) * (2*(tdsqlite3_int64)nElem + 1)
-                           + sizeof(MatchinfoBuffer);
-  tdsqlite3_int64 nStr = strlen(zMatchinfo);
-
-  pRet = tdsqlite3_malloc64(nByte + nStr+1);
-  if( pRet ){
-    memset(pRet, 0, nByte);
-    pRet->aMatchinfo[0] = (u8*)(&pRet->aMatchinfo[1]) - (u8*)pRet;
-    pRet->aMatchinfo[1+nElem] = pRet->aMatchinfo[0]
-                                      + sizeof(u32)*((int)nElem+1);
-    pRet->nElem = (int)nElem;
-    pRet->zMatchinfo = ((char*)pRet) + nByte;
-    memcpy(pRet->zMatchinfo, zMatchinfo, nStr+1);
-    pRet->aRef[0] = 1;
-  }
-
-  return pRet;
-}
-
-static void fts3MIBufferFree(void *p){
-  MatchinfoBuffer *pBuf = (MatchinfoBuffer*)((u8*)p - ((u32*)p)[-1]);
-
-  assert( (u32*)p==&pBuf->aMatchinfo[1] 
-       || (u32*)p==&pBuf->aMatchinfo[pBuf->nElem+2] 
-  );
-  if( (u32*)p==&pBuf->aMatchinfo[1] ){
-    pBuf->aRef[1] = 0;
-  }else{
-    pBuf->aRef[2] = 0;
-  }
-
-  if( pBuf->aRef[0]==0 && pBuf->aRef[1]==0 && pBuf->aRef[2]==0 ){
-    tdsqlite3_free(pBuf);
-  }
-}
-
-static void (*fts3MIBufferAlloc(MatchinfoBuffer *p, u32 **paOut))(void*){
-  void (*xRet)(void*) = 0;
-  u32 *aOut = 0;
-
-  if( p->aRef[1]==0 ){
-    p->aRef[1] = 1;
-    aOut = &p->aMatchinfo[1];
-    xRet = fts3MIBufferFree;
-  }
-  else if( p->aRef[2]==0 ){
-    p->aRef[2] = 1;
-    aOut = &p->aMatchinfo[p->nElem+2];
-    xRet = fts3MIBufferFree;
-  }else{
-    aOut = (u32*)tdsqlite3_malloc64(p->nElem * sizeof(u32));
-    if( aOut ){
-      xRet = tdsqlite3_free;
-      if( p->bGlobal ) memcpy(aOut, &p->aMatchinfo[1], p->nElem*sizeof(u32));
-    }
-  }
-
-  *paOut = aOut;
-  return xRet;
-}
-
-static void fts3MIBufferSetGlobal(MatchinfoBuffer *p){
-  p->bGlobal = 1;
-  memcpy(&p->aMatchinfo[2+p->nElem], &p->aMatchinfo[1], p->nElem*sizeof(u32));
-}
-
-/*
-** Free a MatchinfoBuffer object allocated using fts3MIBufferNew()
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3MIBufferFree(MatchinfoBuffer *p){
-  if( p ){
-    assert( p->aRef[0]==1 );
-    p->aRef[0] = 0;
-    if( p->aRef[0]==0 && p->aRef[1]==0 && p->aRef[2]==0 ){
-      tdsqlite3_free(p);
-    }
-  }
-}
-
-/* 
-** End of MatchinfoBuffer code.
-*************************************************************************/
-
-
-/*
-** This function is used to help iterate through a position-list. A position
-** list is a list of unique integers, sorted from smallest to largest. Each
-** element of the list is represented by an FTS3 varint that takes the value
-** of the difference between the current element and the previous one plus
-** two. For example, to store the position-list:
-**
-**     4 9 113
-**
-** the three varints:
-**
-**     6 7 106
-**
-** are encoded.
-**
-** When this function is called, *pp points to the start of an element of
-** the list. *piPos contains the value of the previous entry in the list.
-** After it returns, *piPos contains the value of the next element of the
-** list and *pp is advanced to the following varint.
-*/
-static void fts3GetDeltaPosition(char **pp, int *piPos){
-  int iVal;
-  *pp += fts3GetVarint32(*pp, &iVal);
-  *piPos += (iVal-2);
-}
-
-/*
-** Helper function for fts3ExprIterate() (see below).
-*/
-static int fts3ExprIterate2(
-  Fts3Expr *pExpr,                /* Expression to iterate phrases of */
-  int *piPhrase,                  /* Pointer to phrase counter */
-  int (*x)(Fts3Expr*,int,void*),  /* Callback function to invoke for phrases */
-  void *pCtx                      /* Second argument to pass to callback */
-){
-  int rc;                         /* Return code */
-  int eType = pExpr->eType;     /* Type of expression node pExpr */
-
-  if( eType!=FTSQUERY_PHRASE ){
-    assert( pExpr->pLeft && pExpr->pRight );
-    rc = fts3ExprIterate2(pExpr->pLeft, piPhrase, x, pCtx);
-    if( rc==SQLITE_OK && eType!=FTSQUERY_NOT ){
-      rc = fts3ExprIterate2(pExpr->pRight, piPhrase, x, pCtx);
-    }
-  }else{
-    rc = x(pExpr, *piPhrase, pCtx);
-    (*piPhrase)++;
-  }
-  return rc;
-}
-
-/*
-** Iterate through all phrase nodes in an FTS3 query, except those that
-** are part of a sub-tree that is the right-hand-side of a NOT operator.
-** For each phrase node found, the supplied callback function is invoked.
-**
-** If the callback function returns anything other than SQLITE_OK, 
-** the iteration is abandoned and the error code returned immediately.
-** Otherwise, SQLITE_OK is returned after a callback has been made for
-** all eligible phrase nodes.
-*/
-static int fts3ExprIterate(
-  Fts3Expr *pExpr,                /* Expression to iterate phrases of */
-  int (*x)(Fts3Expr*,int,void*),  /* Callback function to invoke for phrases */
-  void *pCtx                      /* Second argument to pass to callback */
-){
-  int iPhrase = 0;                /* Variable used as the phrase counter */
-  return fts3ExprIterate2(pExpr, &iPhrase, x, pCtx);
-}
-
-
-/*
-** This is an fts3ExprIterate() callback used while loading the doclists
-** for each phrase into Fts3Expr.aDoclist[]/nDoclist. See also
-** fts3ExprLoadDoclists().
-*/
-static int fts3ExprLoadDoclistsCb(Fts3Expr *pExpr, int iPhrase, void *ctx){
-  int rc = SQLITE_OK;
-  Fts3Phrase *pPhrase = pExpr->pPhrase;
-  LoadDoclistCtx *p = (LoadDoclistCtx *)ctx;
-
-  UNUSED_PARAMETER(iPhrase);
-
-  p->nPhrase++;
-  p->nToken += pPhrase->nToken;
-
-  return rc;
-}
-
-/*
-** Load the doclists for each phrase in the query associated with FTS3 cursor
-** pCsr. 
-**
-** If pnPhrase is not NULL, then *pnPhrase is set to the number of matchable 
-** phrases in the expression (all phrases except those directly or 
-** indirectly descended from the right-hand-side of a NOT operator). If 
-** pnToken is not NULL, then it is set to the number of tokens in all
-** matchable phrases of the expression.
-*/
-static int fts3ExprLoadDoclists(
-  Fts3Cursor *pCsr,               /* Fts3 cursor for current query */
-  int *pnPhrase,                  /* OUT: Number of phrases in query */
-  int *pnToken                    /* OUT: Number of tokens in query */
-){
-  int rc;                         /* Return Code */
-  LoadDoclistCtx sCtx = {0,0,0};  /* Context for fts3ExprIterate() */
-  sCtx.pCsr = pCsr;
-  rc = fts3ExprIterate(pCsr->pExpr, fts3ExprLoadDoclistsCb, (void *)&sCtx);
-  if( pnPhrase ) *pnPhrase = sCtx.nPhrase;
-  if( pnToken ) *pnToken = sCtx.nToken;
-  return rc;
-}
-
-static int fts3ExprPhraseCountCb(Fts3Expr *pExpr, int iPhrase, void *ctx){
-  (*(int *)ctx)++;
-  pExpr->iPhrase = iPhrase;
-  return SQLITE_OK;
-}
-static int fts3ExprPhraseCount(Fts3Expr *pExpr){
-  int nPhrase = 0;
-  (void)fts3ExprIterate(pExpr, fts3ExprPhraseCountCb, (void *)&nPhrase);
-  return nPhrase;
-}
-
-/*
-** Advance the position list iterator specified by the first two 
-** arguments so that it points to the first element with a value greater
-** than or equal to parameter iNext.
-*/
-static void fts3SnippetAdvance(char **ppIter, int *piIter, int iNext){
-  char *pIter = *ppIter;
-  if( pIter ){
-    int iIter = *piIter;
-
-    while( iIter<iNext ){
-      if( 0==(*pIter & 0xFE) ){
-        iIter = -1;
-        pIter = 0;
-        break;
-      }
-      fts3GetDeltaPosition(&pIter, &iIter);
-    }
-
-    *piIter = iIter;
-    *ppIter = pIter;
-  }
-}
-
-/*
-** Advance the snippet iterator to the next candidate snippet.
-*/
-static int fts3SnippetNextCandidate(SnippetIter *pIter){
-  int i;                          /* Loop counter */
-
-  if( pIter->iCurrent<0 ){
-    /* The SnippetIter object has just been initialized. The first snippet
-    ** candidate always starts at offset 0 (even if this candidate has a
-    ** score of 0.0).
-    */
-    pIter->iCurrent = 0;
-
-    /* Advance the 'head' iterator of each phrase to the first offset that
-    ** is greater than or equal to (iNext+nSnippet).
-    */
-    for(i=0; i<pIter->nPhrase; i++){
-      SnippetPhrase *pPhrase = &pIter->aPhrase[i];
-      fts3SnippetAdvance(&pPhrase->pHead, &pPhrase->iHead, pIter->nSnippet);
-    }
-  }else{
-    int iStart;
-    int iEnd = 0x7FFFFFFF;
-
-    for(i=0; i<pIter->nPhrase; i++){
-      SnippetPhrase *pPhrase = &pIter->aPhrase[i];
-      if( pPhrase->pHead && pPhrase->iHead<iEnd ){
-        iEnd = pPhrase->iHead;
-      }
-    }
-    if( iEnd==0x7FFFFFFF ){
-      return 1;
-    }
-
-    pIter->iCurrent = iStart = iEnd - pIter->nSnippet + 1;
-    for(i=0; i<pIter->nPhrase; i++){
-      SnippetPhrase *pPhrase = &pIter->aPhrase[i];
-      fts3SnippetAdvance(&pPhrase->pHead, &pPhrase->iHead, iEnd+1);
-      fts3SnippetAdvance(&pPhrase->pTail, &pPhrase->iTail, iStart);
-    }
-  }
-
-  return 0;
-}
-
-/*
-** Retrieve information about the current candidate snippet of snippet 
-** iterator pIter.
-*/
-static void fts3SnippetDetails(
-  SnippetIter *pIter,             /* Snippet iterator */
-  u64 mCovered,                   /* Bitmask of phrases already covered */
-  int *piToken,                   /* OUT: First token of proposed snippet */
-  int *piScore,                   /* OUT: "Score" for this snippet */
-  u64 *pmCover,                   /* OUT: Bitmask of phrases covered */
-  u64 *pmHighlight                /* OUT: Bitmask of terms to highlight */
-){
-  int iStart = pIter->iCurrent;   /* First token of snippet */
-  int iScore = 0;                 /* Score of this snippet */
-  int i;                          /* Loop counter */
-  u64 mCover = 0;                 /* Mask of phrases covered by this snippet */
-  u64 mHighlight = 0;             /* Mask of tokens to highlight in snippet */
-
-  for(i=0; i<pIter->nPhrase; i++){
-    SnippetPhrase *pPhrase = &pIter->aPhrase[i];
-    if( pPhrase->pTail ){
-      char *pCsr = pPhrase->pTail;
-      int iCsr = pPhrase->iTail;
-
-      while( iCsr<(iStart+pIter->nSnippet) && iCsr>=iStart ){
-        int j;
-        u64 mPhrase = (u64)1 << (i%64);
-        u64 mPos = (u64)1 << (iCsr - iStart);
-        assert( iCsr>=iStart && (iCsr - iStart)<=64 );
-        assert( i>=0 );
-        if( (mCover|mCovered)&mPhrase ){
-          iScore++;
-        }else{
-          iScore += 1000;
-        }
-        mCover |= mPhrase;
-
-        for(j=0; j<pPhrase->nToken; j++){
-          mHighlight |= (mPos>>j);
-        }
-
-        if( 0==(*pCsr & 0x0FE) ) break;
-        fts3GetDeltaPosition(&pCsr, &iCsr);
-      }
-    }
-  }
-
-  /* Set the output variables before returning. */
-  *piToken = iStart;
-  *piScore = iScore;
-  *pmCover = mCover;
-  *pmHighlight = mHighlight;
-}
-
-/*
-** This function is an fts3ExprIterate() callback used by fts3BestSnippet().
-** Each invocation populates an element of the SnippetIter.aPhrase[] array.
-*/
-static int fts3SnippetFindPositions(Fts3Expr *pExpr, int iPhrase, void *ctx){
-  SnippetIter *p = (SnippetIter *)ctx;
-  SnippetPhrase *pPhrase = &p->aPhrase[iPhrase];
-  char *pCsr;
-  int rc;
-
-  pPhrase->nToken = pExpr->pPhrase->nToken;
-  rc = tdsqlite3Fts3EvalPhrasePoslist(p->pCsr, pExpr, p->iCol, &pCsr);
-  assert( rc==SQLITE_OK || pCsr==0 );
-  if( pCsr ){
-    int iFirst = 0;
-    pPhrase->pList = pCsr;
-    fts3GetDeltaPosition(&pCsr, &iFirst);
-    if( iFirst<0 ){
-      rc = FTS_CORRUPT_VTAB;
-    }else{
-      pPhrase->pHead = pCsr;
-      pPhrase->pTail = pCsr;
-      pPhrase->iHead = iFirst;
-      pPhrase->iTail = iFirst;
-    }
-  }else{
-    assert( rc!=SQLITE_OK || (
-       pPhrase->pList==0 && pPhrase->pHead==0 && pPhrase->pTail==0 
-    ));
-  }
-
-  return rc;
-}
-
-/*
-** Select the fragment of text consisting of nFragment contiguous tokens 
-** from column iCol that represent the "best" snippet. The best snippet
-** is the snippet with the highest score, where scores are calculated
-** by adding:
-**
-**   (a) +1 point for each occurrence of a matchable phrase in the snippet.
-**
-**   (b) +1000 points for the first occurrence of each matchable phrase in 
-**       the snippet for which the corresponding mCovered bit is not set.
-**
-** The selected snippet parameters are stored in structure *pFragment before
-** returning. The score of the selected snippet is stored in *piScore
-** before returning.
-*/
-static int fts3BestSnippet(
-  int nSnippet,                   /* Desired snippet length */
-  Fts3Cursor *pCsr,               /* Cursor to create snippet for */
-  int iCol,                       /* Index of column to create snippet from */
-  u64 mCovered,                   /* Mask of phrases already covered */
-  u64 *pmSeen,                    /* IN/OUT: Mask of phrases seen */
-  SnippetFragment *pFragment,     /* OUT: Best snippet found */
-  int *piScore                    /* OUT: Score of snippet pFragment */
-){
-  int rc;                         /* Return Code */
-  int nList;                      /* Number of phrases in expression */
-  SnippetIter sIter;              /* Iterates through snippet candidates */
-  tdsqlite3_int64 nByte;            /* Number of bytes of space to allocate */
-  int iBestScore = -1;            /* Best snippet score found so far */
-  int i;                          /* Loop counter */
-
-  memset(&sIter, 0, sizeof(sIter));
-
-  /* Iterate through the phrases in the expression to count them. The same
-  ** callback makes sure the doclists are loaded for each phrase.
-  */
-  rc = fts3ExprLoadDoclists(pCsr, &nList, 0);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  /* Now that it is known how many phrases there are, allocate and zero
-  ** the required space using malloc().
-  */
-  nByte = sizeof(SnippetPhrase) * nList;
-  sIter.aPhrase = (SnippetPhrase *)tdsqlite3_malloc64(nByte);
-  if( !sIter.aPhrase ){
-    return SQLITE_NOMEM;
-  }
-  memset(sIter.aPhrase, 0, nByte);
-
-  /* Initialize the contents of the SnippetIter object. Then iterate through
-  ** the set of phrases in the expression to populate the aPhrase[] array.
-  */
-  sIter.pCsr = pCsr;
-  sIter.iCol = iCol;
-  sIter.nSnippet = nSnippet;
-  sIter.nPhrase = nList;
-  sIter.iCurrent = -1;
-  rc = fts3ExprIterate(pCsr->pExpr, fts3SnippetFindPositions, (void*)&sIter);
-  if( rc==SQLITE_OK ){
-
-    /* Set the *pmSeen output variable. */
-    for(i=0; i<nList; i++){
-      if( sIter.aPhrase[i].pHead ){
-        *pmSeen |= (u64)1 << (i%64);
-      }
-    }
-
-    /* Loop through all candidate snippets. Store the best snippet in 
-     ** *pFragment. Store its associated 'score' in iBestScore.
-     */
-    pFragment->iCol = iCol;
-    while( !fts3SnippetNextCandidate(&sIter) ){
-      int iPos;
-      int iScore;
-      u64 mCover;
-      u64 mHighlite;
-      fts3SnippetDetails(&sIter, mCovered, &iPos, &iScore, &mCover,&mHighlite);
-      assert( iScore>=0 );
-      if( iScore>iBestScore ){
-        pFragment->iPos = iPos;
-        pFragment->hlmask = mHighlite;
-        pFragment->covered = mCover;
-        iBestScore = iScore;
-      }
-    }
-
-    *piScore = iBestScore;
-  }
-  tdsqlite3_free(sIter.aPhrase);
-  return rc;
-}
-
-
-/*
-** Append a string to the string-buffer passed as the first argument.
-**
-** If nAppend is negative, then the length of the string zAppend is
-** determined using strlen().
-*/
-static int fts3StringAppend(
-  StrBuffer *pStr,                /* Buffer to append to */
-  const char *zAppend,            /* Pointer to data to append to buffer */
-  int nAppend                     /* Size of zAppend in bytes (or -1) */
-){
-  if( nAppend<0 ){
-    nAppend = (int)strlen(zAppend);
-  }
-
-  /* If there is insufficient space allocated at StrBuffer.z, use realloc()
-  ** to grow the buffer until so that it is big enough to accomadate the
-  ** appended data.
-  */
-  if( pStr->n+nAppend+1>=pStr->nAlloc ){
-    tdsqlite3_int64 nAlloc = pStr->nAlloc+(tdsqlite3_int64)nAppend+100;
-    char *zNew = tdsqlite3_realloc64(pStr->z, nAlloc);
-    if( !zNew ){
-      return SQLITE_NOMEM;
-    }
-    pStr->z = zNew;
-    pStr->nAlloc = nAlloc;
-  }
-  assert( pStr->z!=0 && (pStr->nAlloc >= pStr->n+nAppend+1) );
-
-  /* Append the data to the string buffer. */
-  memcpy(&pStr->z[pStr->n], zAppend, nAppend);
-  pStr->n += nAppend;
-  pStr->z[pStr->n] = '\0';
-
-  return SQLITE_OK;
-}
-
-/*
-** The fts3BestSnippet() function often selects snippets that end with a
-** query term. That is, the final term of the snippet is always a term
-** that requires highlighting. For example, if 'X' is a highlighted term
-** and '.' is a non-highlighted term, BestSnippet() may select:
-**
-**     ........X.....X
-**
-** This function "shifts" the beginning of the snippet forward in the 
-** document so that there are approximately the same number of 
-** non-highlighted terms to the right of the final highlighted term as there
-** are to the left of the first highlighted term. For example, to this:
-**
-**     ....X.....X....
-**
-** This is done as part of extracting the snippet text, not when selecting
-** the snippet. Snippet selection is done based on doclists only, so there
-** is no way for fts3BestSnippet() to know whether or not the document 
-** actually contains terms that follow the final highlighted term. 
-*/
-static int fts3SnippetShift(
-  Fts3Table *pTab,                /* FTS3 table snippet comes from */
-  int iLangid,                    /* Language id to use in tokenizing */
-  int nSnippet,                   /* Number of tokens desired for snippet */
-  const char *zDoc,               /* Document text to extract snippet from */
-  int nDoc,                       /* Size of buffer zDoc in bytes */
-  int *piPos,                     /* IN/OUT: First token of snippet */
-  u64 *pHlmask                    /* IN/OUT: Mask of tokens to highlight */
-){
-  u64 hlmask = *pHlmask;          /* Local copy of initial highlight-mask */
-
-  if( hlmask ){
-    int nLeft;                    /* Tokens to the left of first highlight */
-    int nRight;                   /* Tokens to the right of last highlight */
-    int nDesired;                 /* Ideal number of tokens to shift forward */
-
-    for(nLeft=0; !(hlmask & ((u64)1 << nLeft)); nLeft++);
-    for(nRight=0; !(hlmask & ((u64)1 << (nSnippet-1-nRight))); nRight++);
-    assert( (nSnippet-1-nRight)<=63 && (nSnippet-1-nRight)>=0 );
-    nDesired = (nLeft-nRight)/2;
-
-    /* Ideally, the start of the snippet should be pushed forward in the
-    ** document nDesired tokens. This block checks if there are actually
-    ** nDesired tokens to the right of the snippet. If so, *piPos and
-    ** *pHlMask are updated to shift the snippet nDesired tokens to the
-    ** right. Otherwise, the snippet is shifted by the number of tokens
-    ** available.
-    */
-    if( nDesired>0 ){
-      int nShift;                 /* Number of tokens to shift snippet by */
-      int iCurrent = 0;           /* Token counter */
-      int rc;                     /* Return Code */
-      tdsqlite3_tokenizer_module *pMod;
-      tdsqlite3_tokenizer_cursor *pC;
-      pMod = (tdsqlite3_tokenizer_module *)pTab->pTokenizer->pModule;
-
-      /* Open a cursor on zDoc/nDoc. Check if there are (nSnippet+nDesired)
-      ** or more tokens in zDoc/nDoc.
-      */
-      rc = tdsqlite3Fts3OpenTokenizer(pTab->pTokenizer, iLangid, zDoc, nDoc, &pC);
-      if( rc!=SQLITE_OK ){
-        return rc;
-      }
-      while( rc==SQLITE_OK && iCurrent<(nSnippet+nDesired) ){
-        const char *ZDUMMY; int DUMMY1 = 0, DUMMY2 = 0, DUMMY3 = 0;
-        rc = pMod->xNext(pC, &ZDUMMY, &DUMMY1, &DUMMY2, &DUMMY3, &iCurrent);
-      }
-      pMod->xClose(pC);
-      if( rc!=SQLITE_OK && rc!=SQLITE_DONE ){ return rc; }
-
-      nShift = (rc==SQLITE_DONE)+iCurrent-nSnippet;
-      assert( nShift<=nDesired );
-      if( nShift>0 ){
-        *piPos += nShift;
-        *pHlmask = hlmask >> nShift;
-      }
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Extract the snippet text for fragment pFragment from cursor pCsr and
-** append it to string buffer pOut.
-*/
-static int fts3SnippetText(
-  Fts3Cursor *pCsr,               /* FTS3 Cursor */
-  SnippetFragment *pFragment,     /* Snippet to extract */
-  int iFragment,                  /* Fragment number */
-  int isLast,                     /* True for final fragment in snippet */
-  int nSnippet,                   /* Number of tokens in extracted snippet */
-  const char *zOpen,              /* String inserted before highlighted term */
-  const char *zClose,             /* String inserted after highlighted term */
-  const char *zEllipsis,          /* String inserted between snippets */
-  StrBuffer *pOut                 /* Write output here */
-){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  int rc;                         /* Return code */
-  const char *zDoc;               /* Document text to extract snippet from */
-  int nDoc;                       /* Size of zDoc in bytes */
-  int iCurrent = 0;               /* Current token number of document */
-  int iEnd = 0;                   /* Byte offset of end of current token */
-  int isShiftDone = 0;            /* True after snippet is shifted */
-  int iPos = pFragment->iPos;     /* First token of snippet */
-  u64 hlmask = pFragment->hlmask; /* Highlight-mask for snippet */
-  int iCol = pFragment->iCol+1;   /* Query column to extract text from */
-  tdsqlite3_tokenizer_module *pMod; /* Tokenizer module methods object */
-  tdsqlite3_tokenizer_cursor *pC;   /* Tokenizer cursor open on zDoc/nDoc */
-  
-  zDoc = (const char *)tdsqlite3_column_text(pCsr->pStmt, iCol);
-  if( zDoc==0 ){
-    if( tdsqlite3_column_type(pCsr->pStmt, iCol)!=SQLITE_NULL ){
-      return SQLITE_NOMEM;
-    }
-    return SQLITE_OK;
-  }
-  nDoc = tdsqlite3_column_bytes(pCsr->pStmt, iCol);
-
-  /* Open a token cursor on the document. */
-  pMod = (tdsqlite3_tokenizer_module *)pTab->pTokenizer->pModule;
-  rc = tdsqlite3Fts3OpenTokenizer(pTab->pTokenizer, pCsr->iLangid, zDoc,nDoc,&pC);
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  while( rc==SQLITE_OK ){
-    const char *ZDUMMY;           /* Dummy argument used with tokenizer */
-    int DUMMY1 = -1;              /* Dummy argument used with tokenizer */
-    int iBegin = 0;               /* Offset in zDoc of start of token */
-    int iFin = 0;                 /* Offset in zDoc of end of token */
-    int isHighlight = 0;          /* True for highlighted terms */
-
-    /* Variable DUMMY1 is initialized to a negative value above. Elsewhere
-    ** in the FTS code the variable that the third argument to xNext points to
-    ** is initialized to zero before the first (*but not necessarily
-    ** subsequent*) call to xNext(). This is done for a particular application
-    ** that needs to know whether or not the tokenizer is being used for
-    ** snippet generation or for some other purpose.
-    **
-    ** Extreme care is required when writing code to depend on this
-    ** initialization. It is not a documented part of the tokenizer interface.
-    ** If a tokenizer is used directly by any code outside of FTS, this
-    ** convention might not be respected.  */
-    rc = pMod->xNext(pC, &ZDUMMY, &DUMMY1, &iBegin, &iFin, &iCurrent);
-    if( rc!=SQLITE_OK ){
-      if( rc==SQLITE_DONE ){
-        /* Special case - the last token of the snippet is also the last token
-        ** of the column. Append any punctuation that occurred between the end
-        ** of the previous token and the end of the document to the output. 
-        ** Then break out of the loop. */
-        rc = fts3StringAppend(pOut, &zDoc[iEnd], -1);
-      }
-      break;
-    }
-    if( iCurrent<iPos ){ continue; }
-
-    if( !isShiftDone ){
-      int n = nDoc - iBegin;
-      rc = fts3SnippetShift(
-          pTab, pCsr->iLangid, nSnippet, &zDoc[iBegin], n, &iPos, &hlmask
-      );
-      isShiftDone = 1;
-
-      /* Now that the shift has been done, check if the initial "..." are
-      ** required. They are required if (a) this is not the first fragment,
-      ** or (b) this fragment does not begin at position 0 of its column. 
-      */
-      if( rc==SQLITE_OK ){
-        if( iPos>0 || iFragment>0 ){
-          rc = fts3StringAppend(pOut, zEllipsis, -1);
-        }else if( iBegin ){
-          rc = fts3StringAppend(pOut, zDoc, iBegin);
-        }
-      }
-      if( rc!=SQLITE_OK || iCurrent<iPos ) continue;
-    }
-
-    if( iCurrent>=(iPos+nSnippet) ){
-      if( isLast ){
-        rc = fts3StringAppend(pOut, zEllipsis, -1);
-      }
-      break;
-    }
-
-    /* Set isHighlight to true if this term should be highlighted. */
-    isHighlight = (hlmask & ((u64)1 << (iCurrent-iPos)))!=0;
-
-    if( iCurrent>iPos ) rc = fts3StringAppend(pOut, &zDoc[iEnd], iBegin-iEnd);
-    if( rc==SQLITE_OK && isHighlight ) rc = fts3StringAppend(pOut, zOpen, -1);
-    if( rc==SQLITE_OK ) rc = fts3StringAppend(pOut, &zDoc[iBegin], iFin-iBegin);
-    if( rc==SQLITE_OK && isHighlight ) rc = fts3StringAppend(pOut, zClose, -1);
-
-    iEnd = iFin;
-  }
-
-  pMod->xClose(pC);
-  return rc;
-}
-
-
-/*
-** This function is used to count the entries in a column-list (a 
-** delta-encoded list of term offsets within a single column of a single 
-** row). When this function is called, *ppCollist should point to the
-** beginning of the first varint in the column-list (the varint that
-** contains the position of the first matching term in the column data).
-** Before returning, *ppCollist is set to point to the first byte after
-** the last varint in the column-list (either the 0x00 signifying the end
-** of the position-list, or the 0x01 that precedes the column number of
-** the next column in the position-list).
-**
-** The number of elements in the column-list is returned.
-*/
-static int fts3ColumnlistCount(char **ppCollist){
-  char *pEnd = *ppCollist;
-  char c = 0;
-  int nEntry = 0;
-
-  /* A column-list is terminated by either a 0x01 or 0x00. */
-  while( 0xFE & (*pEnd | c) ){
-    c = *pEnd++ & 0x80;
-    if( !c ) nEntry++;
-  }
-
-  *ppCollist = pEnd;
-  return nEntry;
-}
-
-/*
-** This function gathers 'y' or 'b' data for a single phrase.
-*/
-static int fts3ExprLHits(
-  Fts3Expr *pExpr,                /* Phrase expression node */
-  MatchInfo *p                    /* Matchinfo context */
-){
-  Fts3Table *pTab = (Fts3Table *)p->pCursor->base.pVtab;
-  int iStart;
-  Fts3Phrase *pPhrase = pExpr->pPhrase;
-  char *pIter = pPhrase->doclist.pList;
-  int iCol = 0;
-
-  assert( p->flag==FTS3_MATCHINFO_LHITS_BM || p->flag==FTS3_MATCHINFO_LHITS );
-  if( p->flag==FTS3_MATCHINFO_LHITS ){
-    iStart = pExpr->iPhrase * p->nCol;
-  }else{
-    iStart = pExpr->iPhrase * ((p->nCol + 31) / 32);
-  }
-
-  while( 1 ){
-    int nHit = fts3ColumnlistCount(&pIter);
-    if( (pPhrase->iColumn>=pTab->nColumn || pPhrase->iColumn==iCol) ){
-      if( p->flag==FTS3_MATCHINFO_LHITS ){
-        p->aMatchinfo[iStart + iCol] = (u32)nHit;
-      }else if( nHit ){
-        p->aMatchinfo[iStart + (iCol+1)/32] |= (1 << (iCol&0x1F));
-      }
-    }
-    assert( *pIter==0x00 || *pIter==0x01 );
-    if( *pIter!=0x01 ) break;
-    pIter++;
-    pIter += fts3GetVarint32(pIter, &iCol);
-    if( iCol>=p->nCol ) return FTS_CORRUPT_VTAB;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Gather the results for matchinfo directives 'y' and 'b'.
-*/
-static int fts3ExprLHitGather(
-  Fts3Expr *pExpr,
-  MatchInfo *p
-){
-  int rc = SQLITE_OK;
-  assert( (pExpr->pLeft==0)==(pExpr->pRight==0) );
-  if( pExpr->bEof==0 && pExpr->iDocid==p->pCursor->iPrevId ){
-    if( pExpr->pLeft ){
-      rc = fts3ExprLHitGather(pExpr->pLeft, p);
-      if( rc==SQLITE_OK ) rc = fts3ExprLHitGather(pExpr->pRight, p);
-    }else{
-      rc = fts3ExprLHits(pExpr, p);
-    }
-  }
-  return rc;
-}
-
-/*
-** fts3ExprIterate() callback used to collect the "global" matchinfo stats
-** for a single query. 
-**
-** fts3ExprIterate() callback to load the 'global' elements of a
-** FTS3_MATCHINFO_HITS matchinfo array. The global stats are those elements 
-** of the matchinfo array that are constant for all rows returned by the 
-** current query.
-**
-** Argument pCtx is actually a pointer to a struct of type MatchInfo. This
-** function populates Matchinfo.aMatchinfo[] as follows:
-**
-**   for(iCol=0; iCol<nCol; iCol++){
-**     aMatchinfo[3*iPhrase*nCol + 3*iCol + 1] = X;
-**     aMatchinfo[3*iPhrase*nCol + 3*iCol + 2] = Y;
-**   }
-**
-** where X is the number of matches for phrase iPhrase is column iCol of all
-** rows of the table. Y is the number of rows for which column iCol contains
-** at least one instance of phrase iPhrase.
-**
-** If the phrase pExpr consists entirely of deferred tokens, then all X and
-** Y values are set to nDoc, where nDoc is the number of documents in the 
-** file system. This is done because the full-text index doclist is required
-** to calculate these values properly, and the full-text index doclist is
-** not available for deferred tokens.
-*/
-static int fts3ExprGlobalHitsCb(
-  Fts3Expr *pExpr,                /* Phrase expression node */
-  int iPhrase,                    /* Phrase number (numbered from zero) */
-  void *pCtx                      /* Pointer to MatchInfo structure */
-){
-  MatchInfo *p = (MatchInfo *)pCtx;
-  return tdsqlite3Fts3EvalPhraseStats(
-      p->pCursor, pExpr, &p->aMatchinfo[3*iPhrase*p->nCol]
-  );
-}
-
-/*
-** fts3ExprIterate() callback used to collect the "local" part of the
-** FTS3_MATCHINFO_HITS array. The local stats are those elements of the 
-** array that are different for each row returned by the query.
-*/
-static int fts3ExprLocalHitsCb(
-  Fts3Expr *pExpr,                /* Phrase expression node */
-  int iPhrase,                    /* Phrase number */
-  void *pCtx                      /* Pointer to MatchInfo structure */
-){
-  int rc = SQLITE_OK;
-  MatchInfo *p = (MatchInfo *)pCtx;
-  int iStart = iPhrase * p->nCol * 3;
-  int i;
-
-  for(i=0; i<p->nCol && rc==SQLITE_OK; i++){
-    char *pCsr;
-    rc = tdsqlite3Fts3EvalPhrasePoslist(p->pCursor, pExpr, i, &pCsr);
-    if( pCsr ){
-      p->aMatchinfo[iStart+i*3] = fts3ColumnlistCount(&pCsr);
-    }else{
-      p->aMatchinfo[iStart+i*3] = 0;
-    }
-  }
-
-  return rc;
-}
-
-static int fts3MatchinfoCheck(
-  Fts3Table *pTab, 
-  char cArg,
-  char **pzErr
-){
-  if( (cArg==FTS3_MATCHINFO_NPHRASE)
-   || (cArg==FTS3_MATCHINFO_NCOL)
-   || (cArg==FTS3_MATCHINFO_NDOC && pTab->bFts4)
-   || (cArg==FTS3_MATCHINFO_AVGLENGTH && pTab->bFts4)
-   || (cArg==FTS3_MATCHINFO_LENGTH && pTab->bHasDocsize)
-   || (cArg==FTS3_MATCHINFO_LCS)
-   || (cArg==FTS3_MATCHINFO_HITS)
-   || (cArg==FTS3_MATCHINFO_LHITS)
-   || (cArg==FTS3_MATCHINFO_LHITS_BM)
-  ){
-    return SQLITE_OK;
-  }
-  tdsqlite3Fts3ErrMsg(pzErr, "unrecognized matchinfo request: %c", cArg);
-  return SQLITE_ERROR;
-}
-
-static size_t fts3MatchinfoSize(MatchInfo *pInfo, char cArg){
-  size_t nVal;                      /* Number of integers output by cArg */
-
-  switch( cArg ){
-    case FTS3_MATCHINFO_NDOC:
-    case FTS3_MATCHINFO_NPHRASE: 
-    case FTS3_MATCHINFO_NCOL: 
-      nVal = 1;
-      break;
-
-    case FTS3_MATCHINFO_AVGLENGTH:
-    case FTS3_MATCHINFO_LENGTH:
-    case FTS3_MATCHINFO_LCS:
-      nVal = pInfo->nCol;
-      break;
-
-    case FTS3_MATCHINFO_LHITS:
-      nVal = pInfo->nCol * pInfo->nPhrase;
-      break;
-
-    case FTS3_MATCHINFO_LHITS_BM:
-      nVal = pInfo->nPhrase * ((pInfo->nCol + 31) / 32);
-      break;
-
-    default:
-      assert( cArg==FTS3_MATCHINFO_HITS );
-      nVal = pInfo->nCol * pInfo->nPhrase * 3;
-      break;
-  }
-
-  return nVal;
-}
-
-static int fts3MatchinfoSelectDoctotal(
-  Fts3Table *pTab,
-  tdsqlite3_stmt **ppStmt,
-  tdsqlite3_int64 *pnDoc,
-  const char **paLen,
-  const char **ppEnd
-){
-  tdsqlite3_stmt *pStmt;
-  const char *a;
-  const char *pEnd;
-  tdsqlite3_int64 nDoc;
-  int n;
-
-
-  if( !*ppStmt ){
-    int rc = tdsqlite3Fts3SelectDoctotal(pTab, ppStmt);
-    if( rc!=SQLITE_OK ) return rc;
-  }
-  pStmt = *ppStmt;
-  assert( tdsqlite3_data_count(pStmt)==1 );
-
-  n = tdsqlite3_column_bytes(pStmt, 0);
-  a = tdsqlite3_column_blob(pStmt, 0);
-  if( a==0 ){
-    return FTS_CORRUPT_VTAB;
-  }
-  pEnd = a + n;
-  a += tdsqlite3Fts3GetVarintBounded(a, pEnd, &nDoc);
-  if( nDoc<=0 || a>pEnd ){
-    return FTS_CORRUPT_VTAB;
-  }
-  *pnDoc = nDoc;
-
-  if( paLen ) *paLen = a;
-  if( ppEnd ) *ppEnd = pEnd;
-  return SQLITE_OK;
-}
-
-/*
-** An instance of the following structure is used to store state while 
-** iterating through a multi-column position-list corresponding to the
-** hits for a single phrase on a single row in order to calculate the
-** values for a matchinfo() FTS3_MATCHINFO_LCS request.
-*/
-typedef struct LcsIterator LcsIterator;
-struct LcsIterator {
-  Fts3Expr *pExpr;                /* Pointer to phrase expression */
-  int iPosOffset;                 /* Tokens count up to end of this phrase */
-  char *pRead;                    /* Cursor used to iterate through aDoclist */
-  int iPos;                       /* Current position */
-};
-
-/* 
-** If LcsIterator.iCol is set to the following value, the iterator has
-** finished iterating through all offsets for all columns.
-*/
-#define LCS_ITERATOR_FINISHED 0x7FFFFFFF;
-
-static int fts3MatchinfoLcsCb(
-  Fts3Expr *pExpr,                /* Phrase expression node */
-  int iPhrase,                    /* Phrase number (numbered from zero) */
-  void *pCtx                      /* Pointer to MatchInfo structure */
-){
-  LcsIterator *aIter = (LcsIterator *)pCtx;
-  aIter[iPhrase].pExpr = pExpr;
-  return SQLITE_OK;
-}
-
-/*
-** Advance the iterator passed as an argument to the next position. Return
-** 1 if the iterator is at EOF or if it now points to the start of the
-** position list for the next column.
-*/
-static int fts3LcsIteratorAdvance(LcsIterator *pIter){
-  char *pRead = pIter->pRead;
-  tdsqlite3_int64 iRead;
-  int rc = 0;
-
-  pRead += tdsqlite3Fts3GetVarint(pRead, &iRead);
-  if( iRead==0 || iRead==1 ){
-    pRead = 0;
-    rc = 1;
-  }else{
-    pIter->iPos += (int)(iRead-2);
-  }
-
-  pIter->pRead = pRead;
-  return rc;
-}
-  
-/*
-** This function implements the FTS3_MATCHINFO_LCS matchinfo() flag. 
-**
-** If the call is successful, the longest-common-substring lengths for each
-** column are written into the first nCol elements of the pInfo->aMatchinfo[] 
-** array before returning. SQLITE_OK is returned in this case.
-**
-** Otherwise, if an error occurs, an SQLite error code is returned and the
-** data written to the first nCol elements of pInfo->aMatchinfo[] is 
-** undefined.
-*/
-static int fts3MatchinfoLcs(Fts3Cursor *pCsr, MatchInfo *pInfo){
-  LcsIterator *aIter;
-  int i;
-  int iCol;
-  int nToken = 0;
-  int rc = SQLITE_OK;
-
-  /* Allocate and populate the array of LcsIterator objects. The array
-  ** contains one element for each matchable phrase in the query.
-  **/
-  aIter = tdsqlite3_malloc64(sizeof(LcsIterator) * pCsr->nPhrase);
-  if( !aIter ) return SQLITE_NOMEM;
-  memset(aIter, 0, sizeof(LcsIterator) * pCsr->nPhrase);
-  (void)fts3ExprIterate(pCsr->pExpr, fts3MatchinfoLcsCb, (void*)aIter);
-
-  for(i=0; i<pInfo->nPhrase; i++){
-    LcsIterator *pIter = &aIter[i];
-    nToken -= pIter->pExpr->pPhrase->nToken;
-    pIter->iPosOffset = nToken;
-  }
-
-  for(iCol=0; iCol<pInfo->nCol; iCol++){
-    int nLcs = 0;                 /* LCS value for this column */
-    int nLive = 0;                /* Number of iterators in aIter not at EOF */
-
-    for(i=0; i<pInfo->nPhrase; i++){
-      LcsIterator *pIt = &aIter[i];
-      rc = tdsqlite3Fts3EvalPhrasePoslist(pCsr, pIt->pExpr, iCol, &pIt->pRead);
-      if( rc!=SQLITE_OK ) goto matchinfo_lcs_out;
-      if( pIt->pRead ){
-        pIt->iPos = pIt->iPosOffset;
-        fts3LcsIteratorAdvance(pIt);
-        if( pIt->pRead==0 ){
-          rc = FTS_CORRUPT_VTAB;
-          goto matchinfo_lcs_out;
-        }
-        nLive++;
-      }
-    }
-
-    while( nLive>0 ){
-      LcsIterator *pAdv = 0;      /* The iterator to advance by one position */
-      int nThisLcs = 0;           /* LCS for the current iterator positions */
-
-      for(i=0; i<pInfo->nPhrase; i++){
-        LcsIterator *pIter = &aIter[i];
-        if( pIter->pRead==0 ){
-          /* This iterator is already at EOF for this column. */
-          nThisLcs = 0;
-        }else{
-          if( pAdv==0 || pIter->iPos<pAdv->iPos ){
-            pAdv = pIter;
-          }
-          if( nThisLcs==0 || pIter->iPos==pIter[-1].iPos ){
-            nThisLcs++;
-          }else{
-            nThisLcs = 1;
-          }
-          if( nThisLcs>nLcs ) nLcs = nThisLcs;
-        }
-      }
-      if( fts3LcsIteratorAdvance(pAdv) ) nLive--;
-    }
-
-    pInfo->aMatchinfo[iCol] = nLcs;
-  }
-
- matchinfo_lcs_out:
-  tdsqlite3_free(aIter);
-  return rc;
-}
-
-/*
-** Populate the buffer pInfo->aMatchinfo[] with an array of integers to
-** be returned by the matchinfo() function. Argument zArg contains the 
-** format string passed as the second argument to matchinfo (or the
-** default value "pcx" if no second argument was specified). The format
-** string has already been validated and the pInfo->aMatchinfo[] array
-** is guaranteed to be large enough for the output.
-**
-** If bGlobal is true, then populate all fields of the matchinfo() output.
-** If it is false, then assume that those fields that do not change between
-** rows (i.e. FTS3_MATCHINFO_NPHRASE, NCOL, NDOC, AVGLENGTH and part of HITS)
-** have already been populated.
-**
-** Return SQLITE_OK if successful, or an SQLite error code if an error 
-** occurs. If a value other than SQLITE_OK is returned, the state the
-** pInfo->aMatchinfo[] buffer is left in is undefined.
-*/
-static int fts3MatchinfoValues(
-  Fts3Cursor *pCsr,               /* FTS3 cursor object */
-  int bGlobal,                    /* True to grab the global stats */
-  MatchInfo *pInfo,               /* Matchinfo context object */
-  const char *zArg                /* Matchinfo format string */
-){
-  int rc = SQLITE_OK;
-  int i;
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  tdsqlite3_stmt *pSelect = 0;
-
-  for(i=0; rc==SQLITE_OK && zArg[i]; i++){
-    pInfo->flag = zArg[i];
-    switch( zArg[i] ){
-      case FTS3_MATCHINFO_NPHRASE:
-        if( bGlobal ) pInfo->aMatchinfo[0] = pInfo->nPhrase;
-        break;
-
-      case FTS3_MATCHINFO_NCOL:
-        if( bGlobal ) pInfo->aMatchinfo[0] = pInfo->nCol;
-        break;
-        
-      case FTS3_MATCHINFO_NDOC:
-        if( bGlobal ){
-          tdsqlite3_int64 nDoc = 0;
-          rc = fts3MatchinfoSelectDoctotal(pTab, &pSelect, &nDoc, 0, 0);
-          pInfo->aMatchinfo[0] = (u32)nDoc;
-        }
-        break;
-
-      case FTS3_MATCHINFO_AVGLENGTH: 
-        if( bGlobal ){
-          tdsqlite3_int64 nDoc;     /* Number of rows in table */
-          const char *a;          /* Aggregate column length array */
-          const char *pEnd;       /* First byte past end of length array */
-
-          rc = fts3MatchinfoSelectDoctotal(pTab, &pSelect, &nDoc, &a, &pEnd);
-          if( rc==SQLITE_OK ){
-            int iCol;
-            for(iCol=0; iCol<pInfo->nCol; iCol++){
-              u32 iVal;
-              tdsqlite3_int64 nToken;
-              a += tdsqlite3Fts3GetVarint(a, &nToken);
-              if( a>pEnd ){
-                rc = SQLITE_CORRUPT_VTAB;
-                break;
-              }
-              iVal = (u32)(((u32)(nToken&0xffffffff)+nDoc/2)/nDoc);
-              pInfo->aMatchinfo[iCol] = iVal;
-            }
-          }
-        }
-        break;
-
-      case FTS3_MATCHINFO_LENGTH: {
-        tdsqlite3_stmt *pSelectDocsize = 0;
-        rc = tdsqlite3Fts3SelectDocsize(pTab, pCsr->iPrevId, &pSelectDocsize);
-        if( rc==SQLITE_OK ){
-          int iCol;
-          const char *a = tdsqlite3_column_blob(pSelectDocsize, 0);
-          const char *pEnd = a + tdsqlite3_column_bytes(pSelectDocsize, 0);
-          for(iCol=0; iCol<pInfo->nCol; iCol++){
-            tdsqlite3_int64 nToken;
-            a += tdsqlite3Fts3GetVarintBounded(a, pEnd, &nToken);
-            if( a>pEnd ){
-              rc = SQLITE_CORRUPT_VTAB;
-              break;
-            }
-            pInfo->aMatchinfo[iCol] = (u32)nToken;
-          }
-        }
-        tdsqlite3_reset(pSelectDocsize);
-        break;
-      }
-
-      case FTS3_MATCHINFO_LCS:
-        rc = fts3ExprLoadDoclists(pCsr, 0, 0);
-        if( rc==SQLITE_OK ){
-          rc = fts3MatchinfoLcs(pCsr, pInfo);
-        }
-        break;
-
-      case FTS3_MATCHINFO_LHITS_BM:
-      case FTS3_MATCHINFO_LHITS: {
-        size_t nZero = fts3MatchinfoSize(pInfo, zArg[i]) * sizeof(u32);
-        memset(pInfo->aMatchinfo, 0, nZero);
-        rc = fts3ExprLHitGather(pCsr->pExpr, pInfo);
-        break;
-      }
-
-      default: {
-        Fts3Expr *pExpr;
-        assert( zArg[i]==FTS3_MATCHINFO_HITS );
-        pExpr = pCsr->pExpr;
-        rc = fts3ExprLoadDoclists(pCsr, 0, 0);
-        if( rc!=SQLITE_OK ) break;
-        if( bGlobal ){
-          if( pCsr->pDeferred ){
-            rc = fts3MatchinfoSelectDoctotal(pTab, &pSelect, &pInfo->nDoc,0,0);
-            if( rc!=SQLITE_OK ) break;
-          }
-          rc = fts3ExprIterate(pExpr, fts3ExprGlobalHitsCb,(void*)pInfo);
-          tdsqlite3Fts3EvalTestDeferred(pCsr, &rc);
-          if( rc!=SQLITE_OK ) break;
-        }
-        (void)fts3ExprIterate(pExpr, fts3ExprLocalHitsCb,(void*)pInfo);
-        break;
-      }
-    }
-
-    pInfo->aMatchinfo += fts3MatchinfoSize(pInfo, zArg[i]);
-  }
-
-  tdsqlite3_reset(pSelect);
-  return rc;
-}
-
-
-/*
-** Populate pCsr->aMatchinfo[] with data for the current row. The 
-** 'matchinfo' data is an array of 32-bit unsigned integers (C type u32).
-*/
-static void fts3GetMatchinfo(
-  tdsqlite3_context *pCtx,        /* Return results here */
-  Fts3Cursor *pCsr,               /* FTS3 Cursor object */
-  const char *zArg                /* Second argument to matchinfo() function */
-){
-  MatchInfo sInfo;
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  int rc = SQLITE_OK;
-  int bGlobal = 0;                /* Collect 'global' stats as well as local */
-
-  u32 *aOut = 0;
-  void (*xDestroyOut)(void*) = 0;
-
-  memset(&sInfo, 0, sizeof(MatchInfo));
-  sInfo.pCursor = pCsr;
-  sInfo.nCol = pTab->nColumn;
-
-  /* If there is cached matchinfo() data, but the format string for the 
-  ** cache does not match the format string for this request, discard 
-  ** the cached data. */
-  if( pCsr->pMIBuffer && strcmp(pCsr->pMIBuffer->zMatchinfo, zArg) ){
-    tdsqlite3Fts3MIBufferFree(pCsr->pMIBuffer);
-    pCsr->pMIBuffer = 0;
-  }
-
-  /* If Fts3Cursor.pMIBuffer is NULL, then this is the first time the
-  ** matchinfo function has been called for this query. In this case 
-  ** allocate the array used to accumulate the matchinfo data and
-  ** initialize those elements that are constant for every row.
-  */
-  if( pCsr->pMIBuffer==0 ){
-    size_t nMatchinfo = 0;        /* Number of u32 elements in match-info */
-    int i;                        /* Used to iterate through zArg */
-
-    /* Determine the number of phrases in the query */
-    pCsr->nPhrase = fts3ExprPhraseCount(pCsr->pExpr);
-    sInfo.nPhrase = pCsr->nPhrase;
-
-    /* Determine the number of integers in the buffer returned by this call. */
-    for(i=0; zArg[i]; i++){
-      char *zErr = 0;
-      if( fts3MatchinfoCheck(pTab, zArg[i], &zErr) ){
-        tdsqlite3_result_error(pCtx, zErr, -1);
-        tdsqlite3_free(zErr);
-        return;
-      }
-      nMatchinfo += fts3MatchinfoSize(&sInfo, zArg[i]);
-    }
-
-    /* Allocate space for Fts3Cursor.aMatchinfo[] and Fts3Cursor.zMatchinfo. */
-    pCsr->pMIBuffer = fts3MIBufferNew(nMatchinfo, zArg);
-    if( !pCsr->pMIBuffer ) rc = SQLITE_NOMEM;
-
-    pCsr->isMatchinfoNeeded = 1;
-    bGlobal = 1;
-  }
-
-  if( rc==SQLITE_OK ){
-    xDestroyOut = fts3MIBufferAlloc(pCsr->pMIBuffer, &aOut);
-    if( xDestroyOut==0 ){
-      rc = SQLITE_NOMEM;
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    sInfo.aMatchinfo = aOut;
-    sInfo.nPhrase = pCsr->nPhrase;
-    rc = fts3MatchinfoValues(pCsr, bGlobal, &sInfo, zArg);
-    if( bGlobal ){
-      fts3MIBufferSetGlobal(pCsr->pMIBuffer);
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_result_error_code(pCtx, rc);
-    if( xDestroyOut ) xDestroyOut(aOut);
-  }else{
-    int n = pCsr->pMIBuffer->nElem * sizeof(u32);
-    tdsqlite3_result_blob(pCtx, aOut, n, xDestroyOut);
-  }
-}
-
-/*
-** Implementation of snippet() function.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3Snippet(
-  tdsqlite3_context *pCtx,          /* SQLite function call context */
-  Fts3Cursor *pCsr,               /* Cursor object */
-  const char *zStart,             /* Snippet start text - "<b>" */
-  const char *zEnd,               /* Snippet end text - "</b>" */
-  const char *zEllipsis,          /* Snippet ellipsis text - "<b>...</b>" */
-  int iCol,                       /* Extract snippet from this column */
-  int nToken                      /* Approximate number of tokens in snippet */
-){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  int rc = SQLITE_OK;
-  int i;
-  StrBuffer res = {0, 0, 0};
-
-  /* The returned text includes up to four fragments of text extracted from
-  ** the data in the current row. The first iteration of the for(...) loop
-  ** below attempts to locate a single fragment of text nToken tokens in 
-  ** size that contains at least one instance of all phrases in the query
-  ** expression that appear in the current row. If such a fragment of text
-  ** cannot be found, the second iteration of the loop attempts to locate
-  ** a pair of fragments, and so on.
-  */
-  int nSnippet = 0;               /* Number of fragments in this snippet */
-  SnippetFragment aSnippet[4];    /* Maximum of 4 fragments per snippet */
-  int nFToken = -1;               /* Number of tokens in each fragment */
-
-  if( !pCsr->pExpr ){
-    tdsqlite3_result_text(pCtx, "", 0, SQLITE_STATIC);
-    return;
-  }
-
-  /* Limit the snippet length to 64 tokens. */
-  if( nToken<-64 ) nToken = -64;
-  if( nToken>+64 ) nToken = +64;
-
-  for(nSnippet=1; 1; nSnippet++){
-
-    int iSnip;                    /* Loop counter 0..nSnippet-1 */
-    u64 mCovered = 0;             /* Bitmask of phrases covered by snippet */
-    u64 mSeen = 0;                /* Bitmask of phrases seen by BestSnippet() */
-
-    if( nToken>=0 ){
-      nFToken = (nToken+nSnippet-1) / nSnippet;
-    }else{
-      nFToken = -1 * nToken;
-    }
-
-    for(iSnip=0; iSnip<nSnippet; iSnip++){
-      int iBestScore = -1;        /* Best score of columns checked so far */
-      int iRead;                  /* Used to iterate through columns */
-      SnippetFragment *pFragment = &aSnippet[iSnip];
-
-      memset(pFragment, 0, sizeof(*pFragment));
-
-      /* Loop through all columns of the table being considered for snippets.
-      ** If the iCol argument to this function was negative, this means all
-      ** columns of the FTS3 table. Otherwise, only column iCol is considered.
-      */
-      for(iRead=0; iRead<pTab->nColumn; iRead++){
-        SnippetFragment sF = {0, 0, 0, 0};
-        int iS = 0;
-        if( iCol>=0 && iRead!=iCol ) continue;
-
-        /* Find the best snippet of nFToken tokens in column iRead. */
-        rc = fts3BestSnippet(nFToken, pCsr, iRead, mCovered, &mSeen, &sF, &iS);
-        if( rc!=SQLITE_OK ){
-          goto snippet_out;
-        }
-        if( iS>iBestScore ){
-          *pFragment = sF;
-          iBestScore = iS;
-        }
-      }
-
-      mCovered |= pFragment->covered;
-    }
-
-    /* If all query phrases seen by fts3BestSnippet() are present in at least
-    ** one of the nSnippet snippet fragments, break out of the loop.
-    */
-    assert( (mCovered&mSeen)==mCovered );
-    if( mSeen==mCovered || nSnippet==SizeofArray(aSnippet) ) break;
-  }
-
-  assert( nFToken>0 );
-
-  for(i=0; i<nSnippet && rc==SQLITE_OK; i++){
-    rc = fts3SnippetText(pCsr, &aSnippet[i], 
-        i, (i==nSnippet-1), nFToken, zStart, zEnd, zEllipsis, &res
-    );
-  }
-
- snippet_out:
-  tdsqlite3Fts3SegmentsClose(pTab);
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_result_error_code(pCtx, rc);
-    tdsqlite3_free(res.z);
-  }else{
-    tdsqlite3_result_text(pCtx, res.z, -1, tdsqlite3_free);
-  }
-}
-
-
-typedef struct TermOffset TermOffset;
-typedef struct TermOffsetCtx TermOffsetCtx;
-
-struct TermOffset {
-  char *pList;                    /* Position-list */
-  int iPos;                       /* Position just read from pList */
-  int iOff;                       /* Offset of this term from read positions */
-};
-
-struct TermOffsetCtx {
-  Fts3Cursor *pCsr;
-  int iCol;                       /* Column of table to populate aTerm for */
-  int iTerm;
-  tdsqlite3_int64 iDocid;
-  TermOffset *aTerm;
-};
-
-/*
-** This function is an fts3ExprIterate() callback used by tdsqlite3Fts3Offsets().
-*/
-static int fts3ExprTermOffsetInit(Fts3Expr *pExpr, int iPhrase, void *ctx){
-  TermOffsetCtx *p = (TermOffsetCtx *)ctx;
-  int nTerm;                      /* Number of tokens in phrase */
-  int iTerm;                      /* For looping through nTerm phrase terms */
-  char *pList;                    /* Pointer to position list for phrase */
-  int iPos = 0;                   /* First position in position-list */
-  int rc;
-
-  UNUSED_PARAMETER(iPhrase);
-  rc = tdsqlite3Fts3EvalPhrasePoslist(p->pCsr, pExpr, p->iCol, &pList);
-  nTerm = pExpr->pPhrase->nToken;
-  if( pList ){
-    fts3GetDeltaPosition(&pList, &iPos);
-    assert_fts3_nc( iPos>=0 );
-  }
-
-  for(iTerm=0; iTerm<nTerm; iTerm++){
-    TermOffset *pT = &p->aTerm[p->iTerm++];
-    pT->iOff = nTerm-iTerm-1;
-    pT->pList = pList;
-    pT->iPos = iPos;
-  }
-
-  return rc;
-}
-
-/*
-** Implementation of offsets() function.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3Offsets(
-  tdsqlite3_context *pCtx,          /* SQLite function call context */
-  Fts3Cursor *pCsr                /* Cursor object */
-){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  tdsqlite3_tokenizer_module const *pMod = pTab->pTokenizer->pModule;
-  int rc;                         /* Return Code */
-  int nToken;                     /* Number of tokens in query */
-  int iCol;                       /* Column currently being processed */
-  StrBuffer res = {0, 0, 0};      /* Result string */
-  TermOffsetCtx sCtx;             /* Context for fts3ExprTermOffsetInit() */
-
-  if( !pCsr->pExpr ){
-    tdsqlite3_result_text(pCtx, "", 0, SQLITE_STATIC);
-    return;
-  }
-
-  memset(&sCtx, 0, sizeof(sCtx));
-  assert( pCsr->isRequireSeek==0 );
-
-  /* Count the number of terms in the query */
-  rc = fts3ExprLoadDoclists(pCsr, 0, &nToken);
-  if( rc!=SQLITE_OK ) goto offsets_out;
-
-  /* Allocate the array of TermOffset iterators. */
-  sCtx.aTerm = (TermOffset *)tdsqlite3_malloc64(sizeof(TermOffset)*nToken);
-  if( 0==sCtx.aTerm ){
-    rc = SQLITE_NOMEM;
-    goto offsets_out;
-  }
-  sCtx.iDocid = pCsr->iPrevId;
-  sCtx.pCsr = pCsr;
-
-  /* Loop through the table columns, appending offset information to 
-  ** string-buffer res for each column.
-  */
-  for(iCol=0; iCol<pTab->nColumn; iCol++){
-    tdsqlite3_tokenizer_cursor *pC; /* Tokenizer cursor */
-    const char *ZDUMMY;           /* Dummy argument used with xNext() */
-    int NDUMMY = 0;               /* Dummy argument used with xNext() */
-    int iStart = 0;
-    int iEnd = 0;
-    int iCurrent = 0;
-    const char *zDoc;
-    int nDoc;
-
-    /* Initialize the contents of sCtx.aTerm[] for column iCol. There is 
-    ** no way that this operation can fail, so the return code from
-    ** fts3ExprIterate() can be discarded.
-    */
-    sCtx.iCol = iCol;
-    sCtx.iTerm = 0;
-    (void)fts3ExprIterate(pCsr->pExpr, fts3ExprTermOffsetInit, (void*)&sCtx);
-
-    /* Retreive the text stored in column iCol. If an SQL NULL is stored 
-    ** in column iCol, jump immediately to the next iteration of the loop.
-    ** If an OOM occurs while retrieving the data (this can happen if SQLite
-    ** needs to transform the data from utf-16 to utf-8), return SQLITE_NOMEM 
-    ** to the caller. 
-    */
-    zDoc = (const char *)tdsqlite3_column_text(pCsr->pStmt, iCol+1);
-    nDoc = tdsqlite3_column_bytes(pCsr->pStmt, iCol+1);
-    if( zDoc==0 ){
-      if( tdsqlite3_column_type(pCsr->pStmt, iCol+1)==SQLITE_NULL ){
-        continue;
-      }
-      rc = SQLITE_NOMEM;
-      goto offsets_out;
-    }
-
-    /* Initialize a tokenizer iterator to iterate through column iCol. */
-    rc = tdsqlite3Fts3OpenTokenizer(pTab->pTokenizer, pCsr->iLangid,
-        zDoc, nDoc, &pC
-    );
-    if( rc!=SQLITE_OK ) goto offsets_out;
-
-    rc = pMod->xNext(pC, &ZDUMMY, &NDUMMY, &iStart, &iEnd, &iCurrent);
-    while( rc==SQLITE_OK ){
-      int i;                      /* Used to loop through terms */
-      int iMinPos = 0x7FFFFFFF;   /* Position of next token */
-      TermOffset *pTerm = 0;      /* TermOffset associated with next token */
-
-      for(i=0; i<nToken; i++){
-        TermOffset *pT = &sCtx.aTerm[i];
-        if( pT->pList && (pT->iPos-pT->iOff)<iMinPos ){
-          iMinPos = pT->iPos-pT->iOff;
-          pTerm = pT;
-        }
-      }
-
-      if( !pTerm ){
-        /* All offsets for this column have been gathered. */
-        rc = SQLITE_DONE;
-      }else{
-        assert_fts3_nc( iCurrent<=iMinPos );
-        if( 0==(0xFE&*pTerm->pList) ){
-          pTerm->pList = 0;
-        }else{
-          fts3GetDeltaPosition(&pTerm->pList, &pTerm->iPos);
-        }
-        while( rc==SQLITE_OK && iCurrent<iMinPos ){
-          rc = pMod->xNext(pC, &ZDUMMY, &NDUMMY, &iStart, &iEnd, &iCurrent);
-        }
-        if( rc==SQLITE_OK ){
-          char aBuffer[64];
-          tdsqlite3_snprintf(sizeof(aBuffer), aBuffer, 
-              "%d %d %d %d ", iCol, pTerm-sCtx.aTerm, iStart, iEnd-iStart
-          );
-          rc = fts3StringAppend(&res, aBuffer, -1);
-        }else if( rc==SQLITE_DONE && pTab->zContentTbl==0 ){
-          rc = FTS_CORRUPT_VTAB;
-        }
-      }
-    }
-    if( rc==SQLITE_DONE ){
-      rc = SQLITE_OK;
-    }
-
-    pMod->xClose(pC);
-    if( rc!=SQLITE_OK ) goto offsets_out;
-  }
-
- offsets_out:
-  tdsqlite3_free(sCtx.aTerm);
-  assert( rc!=SQLITE_DONE );
-  tdsqlite3Fts3SegmentsClose(pTab);
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_result_error_code(pCtx,  rc);
-    tdsqlite3_free(res.z);
-  }else{
-    tdsqlite3_result_text(pCtx, res.z, res.n-1, tdsqlite3_free);
-  }
-  return;
-}
-
-/*
-** Implementation of matchinfo() function.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3Matchinfo(
-  tdsqlite3_context *pContext,      /* Function call context */
-  Fts3Cursor *pCsr,               /* FTS3 table cursor */
-  const char *zArg                /* Second arg to matchinfo() function */
-){
-  Fts3Table *pTab = (Fts3Table *)pCsr->base.pVtab;
-  const char *zFormat;
-
-  if( zArg ){
-    zFormat = zArg;
-  }else{
-    zFormat = FTS3_MATCHINFO_DEFAULT;
-  }
-
-  if( !pCsr->pExpr ){
-    tdsqlite3_result_blob(pContext, "", 0, SQLITE_STATIC);
-    return;
-  }else{
-    /* Retrieve matchinfo() data. */
-    fts3GetMatchinfo(pContext, pCsr, zFormat);
-    tdsqlite3Fts3SegmentsClose(pTab);
-  }
-}
-
-#endif
-
-/************** End of fts3_snippet.c ****************************************/
-/************** Begin file fts3_unicode.c ************************************/
-/*
-** 2012 May 24
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** Implementation of the "unicode" full-text-search tokenizer.
-*/
-
-#ifndef SQLITE_DISABLE_FTS3_UNICODE
-
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-
-/* #include <assert.h> */
-/* #include <stdlib.h> */
-/* #include <stdio.h> */
-/* #include <string.h> */
-
-/* #include "fts3_tokenizer.h" */
-
-/*
-** The following two macros - READ_UTF8 and WRITE_UTF8 - have been copied
-** from the tdsqlite3 source file utf.c. If this file is compiled as part
-** of the amalgamation, they are not required.
-*/
-#ifndef SQLITE_AMALGAMATION
-
-static const unsigned char tdsqlite3Utf8Trans1[] = {
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
-  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
-};
-
-#define READ_UTF8(zIn, zTerm, c)                           \
-  c = *(zIn++);                                            \
-  if( c>=0xc0 ){                                           \
-    c = tdsqlite3Utf8Trans1[c-0xc0];                         \
-    while( zIn!=zTerm && (*zIn & 0xc0)==0x80 ){            \
-      c = (c<<6) + (0x3f & *(zIn++));                      \
-    }                                                      \
-    if( c<0x80                                             \
-        || (c&0xFFFFF800)==0xD800                          \
-        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }        \
-  }
-
-#define WRITE_UTF8(zOut, c) {                          \
-  if( c<0x00080 ){                                     \
-    *zOut++ = (u8)(c&0xFF);                            \
-  }                                                    \
-  else if( c<0x00800 ){                                \
-    *zOut++ = 0xC0 + (u8)((c>>6)&0x1F);                \
-    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
-  }                                                    \
-  else if( c<0x10000 ){                                \
-    *zOut++ = 0xE0 + (u8)((c>>12)&0x0F);               \
-    *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);              \
-    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
-  }else{                                               \
-    *zOut++ = 0xF0 + (u8)((c>>18) & 0x07);             \
-    *zOut++ = 0x80 + (u8)((c>>12) & 0x3F);             \
-    *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);              \
-    *zOut++ = 0x80 + (u8)(c & 0x3F);                   \
-  }                                                    \
-}
-
-#endif /* ifndef SQLITE_AMALGAMATION */
-
-typedef struct unicode_tokenizer unicode_tokenizer;
-typedef struct unicode_cursor unicode_cursor;
-
-struct unicode_tokenizer {
-  tdsqlite3_tokenizer base;
-  int eRemoveDiacritic;
-  int nException;
-  int *aiException;
-};
-
-struct unicode_cursor {
-  tdsqlite3_tokenizer_cursor base;
-  const unsigned char *aInput;    /* Input text being tokenized */
-  int nInput;                     /* Size of aInput[] in bytes */
-  int iOff;                       /* Current offset within aInput[] */
-  int iToken;                     /* Index of next token to be returned */
-  char *zToken;                   /* storage for current token */
-  int nAlloc;                     /* space allocated at zToken */
-};
-
-
-/*
-** Destroy a tokenizer allocated by unicodeCreate().
-*/
-static int unicodeDestroy(tdsqlite3_tokenizer *pTokenizer){
-  if( pTokenizer ){
-    unicode_tokenizer *p = (unicode_tokenizer *)pTokenizer;
-    tdsqlite3_free(p->aiException);
-    tdsqlite3_free(p);
-  }
-  return SQLITE_OK;
-}
-
-/*
-** As part of a tokenchars= or separators= option, the CREATE VIRTUAL TABLE
-** statement has specified that the tokenizer for this table shall consider
-** all characters in string zIn/nIn to be separators (if bAlnum==0) or
-** token characters (if bAlnum==1).
-**
-** For each codepoint in the zIn/nIn string, this function checks if the
-** tdsqlite3FtsUnicodeIsalnum() function already returns the desired result.
-** If so, no action is taken. Otherwise, the codepoint is added to the 
-** unicode_tokenizer.aiException[] array. For the purposes of tokenization,
-** the return value of tdsqlite3FtsUnicodeIsalnum() is inverted for all
-** codepoints in the aiException[] array.
-**
-** If a standalone diacritic mark (one that tdsqlite3FtsUnicodeIsdiacritic()
-** identifies as a diacritic) occurs in the zIn/nIn string it is ignored.
-** It is not possible to change the behavior of the tokenizer with respect
-** to these codepoints.
-*/
-static int unicodeAddExceptions(
-  unicode_tokenizer *p,           /* Tokenizer to add exceptions to */
-  int bAlnum,                     /* Replace Isalnum() return value with this */
-  const char *zIn,                /* Array of characters to make exceptions */
-  int nIn                         /* Length of z in bytes */
-){
-  const unsigned char *z = (const unsigned char *)zIn;
-  const unsigned char *zTerm = &z[nIn];
-  unsigned int iCode;
-  int nEntry = 0;
-
-  assert( bAlnum==0 || bAlnum==1 );
-
-  while( z<zTerm ){
-    READ_UTF8(z, zTerm, iCode);
-    assert( (tdsqlite3FtsUnicodeIsalnum((int)iCode) & 0xFFFFFFFE)==0 );
-    if( tdsqlite3FtsUnicodeIsalnum((int)iCode)!=bAlnum 
-     && tdsqlite3FtsUnicodeIsdiacritic((int)iCode)==0 
-    ){
-      nEntry++;
-    }
-  }
-
-  if( nEntry ){
-    int *aNew;                    /* New aiException[] array */
-    int nNew;                     /* Number of valid entries in array aNew[] */
-
-    aNew = tdsqlite3_realloc64(p->aiException,(p->nException+nEntry)*sizeof(int));
-    if( aNew==0 ) return SQLITE_NOMEM;
-    nNew = p->nException;
-
-    z = (const unsigned char *)zIn;
-    while( z<zTerm ){
-      READ_UTF8(z, zTerm, iCode);
-      if( tdsqlite3FtsUnicodeIsalnum((int)iCode)!=bAlnum 
-       && tdsqlite3FtsUnicodeIsdiacritic((int)iCode)==0
-      ){
-        int i, j;
-        for(i=0; i<nNew && aNew[i]<(int)iCode; i++);
-        for(j=nNew; j>i; j--) aNew[j] = aNew[j-1];
-        aNew[i] = (int)iCode;
-        nNew++;
-      }
-    }
-    p->aiException = aNew;
-    p->nException = nNew;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Return true if the p->aiException[] array contains the value iCode.
-*/
-static int unicodeIsException(unicode_tokenizer *p, int iCode){
-  if( p->nException>0 ){
-    int *a = p->aiException;
-    int iLo = 0;
-    int iHi = p->nException-1;
-
-    while( iHi>=iLo ){
-      int iTest = (iHi + iLo) / 2;
-      if( iCode==a[iTest] ){
-        return 1;
-      }else if( iCode>a[iTest] ){
-        iLo = iTest+1;
-      }else{
-        iHi = iTest-1;
-      }
-    }
-  }
-
-  return 0;
-}
-
-/*
-** Return true if, for the purposes of tokenization, codepoint iCode is
-** considered a token character (not a separator).
-*/
-static int unicodeIsAlnum(unicode_tokenizer *p, int iCode){
-  assert( (tdsqlite3FtsUnicodeIsalnum(iCode) & 0xFFFFFFFE)==0 );
-  return tdsqlite3FtsUnicodeIsalnum(iCode) ^ unicodeIsException(p, iCode);
-}
-
-/*
-** Create a new tokenizer instance.
-*/
-static int unicodeCreate(
-  int nArg,                       /* Size of array argv[] */
-  const char * const *azArg,      /* Tokenizer creation arguments */
-  tdsqlite3_tokenizer **pp          /* OUT: New tokenizer handle */
-){
-  unicode_tokenizer *pNew;        /* New tokenizer object */
-  int i;
-  int rc = SQLITE_OK;
-
-  pNew = (unicode_tokenizer *) tdsqlite3_malloc(sizeof(unicode_tokenizer));
-  if( pNew==NULL ) return SQLITE_NOMEM;
-  memset(pNew, 0, sizeof(unicode_tokenizer));
-  pNew->eRemoveDiacritic = 1;
-
-  for(i=0; rc==SQLITE_OK && i<nArg; i++){
-    const char *z = azArg[i];
-    int n = (int)strlen(z);
-
-    if( n==19 && memcmp("remove_diacritics=1", z, 19)==0 ){
-      pNew->eRemoveDiacritic = 1;
-    }
-    else if( n==19 && memcmp("remove_diacritics=0", z, 19)==0 ){
-      pNew->eRemoveDiacritic = 0;
-    }
-    else if( n==19 && memcmp("remove_diacritics=2", z, 19)==0 ){
-      pNew->eRemoveDiacritic = 2;
-    }
-    else if( n>=11 && memcmp("tokenchars=", z, 11)==0 ){
-      rc = unicodeAddExceptions(pNew, 1, &z[11], n-11);
-    }
-    else if( n>=11 && memcmp("separators=", z, 11)==0 ){
-      rc = unicodeAddExceptions(pNew, 0, &z[11], n-11);
-    }
-    else{
-      /* Unrecognized argument */
-      rc  = SQLITE_ERROR;
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    unicodeDestroy((tdsqlite3_tokenizer *)pNew);
-    pNew = 0;
-  }
-  *pp = (tdsqlite3_tokenizer *)pNew;
-  return rc;
-}
-
-/*
-** Prepare to begin tokenizing a particular string.  The input
-** string to be tokenized is pInput[0..nBytes-1].  A cursor
-** used to incrementally tokenize this string is returned in 
-** *ppCursor.
-*/
-static int unicodeOpen(
-  tdsqlite3_tokenizer *p,           /* The tokenizer */
-  const char *aInput,             /* Input string */
-  int nInput,                     /* Size of string aInput in bytes */
-  tdsqlite3_tokenizer_cursor **pp   /* OUT: New cursor object */
-){
-  unicode_cursor *pCsr;
-
-  pCsr = (unicode_cursor *)tdsqlite3_malloc(sizeof(unicode_cursor));
-  if( pCsr==0 ){
-    return SQLITE_NOMEM;
-  }
-  memset(pCsr, 0, sizeof(unicode_cursor));
-
-  pCsr->aInput = (const unsigned char *)aInput;
-  if( aInput==0 ){
-    pCsr->nInput = 0;
-  }else if( nInput<0 ){
-    pCsr->nInput = (int)strlen(aInput);
-  }else{
-    pCsr->nInput = nInput;
-  }
-
-  *pp = &pCsr->base;
-  UNUSED_PARAMETER(p);
-  return SQLITE_OK;
-}
-
-/*
-** Close a tokenization cursor previously opened by a call to
-** simpleOpen() above.
-*/
-static int unicodeClose(tdsqlite3_tokenizer_cursor *pCursor){
-  unicode_cursor *pCsr = (unicode_cursor *) pCursor;
-  tdsqlite3_free(pCsr->zToken);
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-/*
-** Extract the next token from a tokenization cursor.  The cursor must
-** have been opened by a prior call to simpleOpen().
-*/
-static int unicodeNext(
-  tdsqlite3_tokenizer_cursor *pC,   /* Cursor returned by simpleOpen */
-  const char **paToken,           /* OUT: Token text */
-  int *pnToken,                   /* OUT: Number of bytes at *paToken */
-  int *piStart,                   /* OUT: Starting offset of token */
-  int *piEnd,                     /* OUT: Ending offset of token */
-  int *piPos                      /* OUT: Position integer of token */
-){
-  unicode_cursor *pCsr = (unicode_cursor *)pC;
-  unicode_tokenizer *p = ((unicode_tokenizer *)pCsr->base.pTokenizer);
-  unsigned int iCode = 0;
-  char *zOut;
-  const unsigned char *z = &pCsr->aInput[pCsr->iOff];
-  const unsigned char *zStart = z;
-  const unsigned char *zEnd;
-  const unsigned char *zTerm = &pCsr->aInput[pCsr->nInput];
-
-  /* Scan past any delimiter characters before the start of the next token.
-  ** Return SQLITE_DONE early if this takes us all the way to the end of 
-  ** the input.  */
-  while( z<zTerm ){
-    READ_UTF8(z, zTerm, iCode);
-    if( unicodeIsAlnum(p, (int)iCode) ) break;
-    zStart = z;
-  }
-  if( zStart>=zTerm ) return SQLITE_DONE;
-
-  zOut = pCsr->zToken;
-  do {
-    int iOut;
-
-    /* Grow the output buffer if required. */
-    if( (zOut-pCsr->zToken)>=(pCsr->nAlloc-4) ){
-      char *zNew = tdsqlite3_realloc64(pCsr->zToken, pCsr->nAlloc+64);
-      if( !zNew ) return SQLITE_NOMEM;
-      zOut = &zNew[zOut - pCsr->zToken];
-      pCsr->zToken = zNew;
-      pCsr->nAlloc += 64;
-    }
-
-    /* Write the folded case of the last character read to the output */
-    zEnd = z;
-    iOut = tdsqlite3FtsUnicodeFold((int)iCode, p->eRemoveDiacritic);
-    if( iOut ){
-      WRITE_UTF8(zOut, iOut);
-    }
-
-    /* If the cursor is not at EOF, read the next character */
-    if( z>=zTerm ) break;
-    READ_UTF8(z, zTerm, iCode);
-  }while( unicodeIsAlnum(p, (int)iCode) 
-       || tdsqlite3FtsUnicodeIsdiacritic((int)iCode)
-  );
-
-  /* Set the output variables and return. */
-  pCsr->iOff = (int)(z - pCsr->aInput);
-  *paToken = pCsr->zToken;
-  *pnToken = (int)(zOut - pCsr->zToken);
-  *piStart = (int)(zStart - pCsr->aInput);
-  *piEnd = (int)(zEnd - pCsr->aInput);
-  *piPos = pCsr->iToken++;
-  return SQLITE_OK;
-}
-
-/*
-** Set *ppModule to a pointer to the tdsqlite3_tokenizer_module 
-** structure for the unicode tokenizer.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3UnicodeTokenizer(tdsqlite3_tokenizer_module const **ppModule){
-  static const tdsqlite3_tokenizer_module module = {
-    0,
-    unicodeCreate,
-    unicodeDestroy,
-    unicodeOpen,
-    unicodeClose,
-    unicodeNext,
-    0,
-  };
-  *ppModule = &module;
-}
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-#endif /* ifndef SQLITE_DISABLE_FTS3_UNICODE */
-
-/************** End of fts3_unicode.c ****************************************/
-/************** Begin file fts3_unicode2.c ***********************************/
-/*
-** 2012-05-25
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-*/
-
-/*
-** DO NOT EDIT THIS MACHINE GENERATED FILE.
-*/
-
-#ifndef SQLITE_DISABLE_FTS3_UNICODE
-#if defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4)
-
-/* #include <assert.h> */
-
-/*
-** Return true if the argument corresponds to a unicode codepoint
-** classified as either a letter or a number. Otherwise false.
-**
-** The results are undefined if the value passed to this function
-** is less than zero.
-*/
-SQLITE_PRIVATE int tdsqlite3FtsUnicodeIsalnum(int c){
-  /* Each unsigned integer in the following array corresponds to a contiguous
-  ** range of unicode codepoints that are not either letters or numbers (i.e.
-  ** codepoints for which this function should return 0).
-  **
-  ** The most significant 22 bits in each 32-bit value contain the first 
-  ** codepoint in the range. The least significant 10 bits are used to store
-  ** the size of the range (always at least 1). In other words, the value 
-  ** ((C<<22) + N) represents a range of N codepoints starting with codepoint 
-  ** C. It is not possible to represent a range larger than 1023 codepoints 
-  ** using this format.
-  */
-  static const unsigned int aEntry[] = {
-    0x00000030, 0x0000E807, 0x00016C06, 0x0001EC2F, 0x0002AC07,
-    0x0002D001, 0x0002D803, 0x0002EC01, 0x0002FC01, 0x00035C01,
-    0x0003DC01, 0x000B0804, 0x000B480E, 0x000B9407, 0x000BB401,
-    0x000BBC81, 0x000DD401, 0x000DF801, 0x000E1002, 0x000E1C01,
-    0x000FD801, 0x00120808, 0x00156806, 0x00162402, 0x00163C01,
-    0x00164437, 0x0017CC02, 0x00180005, 0x00181816, 0x00187802,
-    0x00192C15, 0x0019A804, 0x0019C001, 0x001B5001, 0x001B580F,
-    0x001B9C07, 0x001BF402, 0x001C000E, 0x001C3C01, 0x001C4401,
-    0x001CC01B, 0x001E980B, 0x001FAC09, 0x001FD804, 0x00205804,
-    0x00206C09, 0x00209403, 0x0020A405, 0x0020C00F, 0x00216403,
-    0x00217801, 0x0023901B, 0x00240004, 0x0024E803, 0x0024F812,
-    0x00254407, 0x00258804, 0x0025C001, 0x00260403, 0x0026F001,
-    0x0026F807, 0x00271C02, 0x00272C03, 0x00275C01, 0x00278802,
-    0x0027C802, 0x0027E802, 0x00280403, 0x0028F001, 0x0028F805,
-    0x00291C02, 0x00292C03, 0x00294401, 0x0029C002, 0x0029D401,
-    0x002A0403, 0x002AF001, 0x002AF808, 0x002B1C03, 0x002B2C03,
-    0x002B8802, 0x002BC002, 0x002C0403, 0x002CF001, 0x002CF807,
-    0x002D1C02, 0x002D2C03, 0x002D5802, 0x002D8802, 0x002DC001,
-    0x002E0801, 0x002EF805, 0x002F1803, 0x002F2804, 0x002F5C01,
-    0x002FCC08, 0x00300403, 0x0030F807, 0x00311803, 0x00312804,
-    0x00315402, 0x00318802, 0x0031FC01, 0x00320802, 0x0032F001,
-    0x0032F807, 0x00331803, 0x00332804, 0x00335402, 0x00338802,
-    0x00340802, 0x0034F807, 0x00351803, 0x00352804, 0x00355C01,
-    0x00358802, 0x0035E401, 0x00360802, 0x00372801, 0x00373C06,
-    0x00375801, 0x00376008, 0x0037C803, 0x0038C401, 0x0038D007,
-    0x0038FC01, 0x00391C09, 0x00396802, 0x003AC401, 0x003AD006,
-    0x003AEC02, 0x003B2006, 0x003C041F, 0x003CD00C, 0x003DC417,
-    0x003E340B, 0x003E6424, 0x003EF80F, 0x003F380D, 0x0040AC14,
-    0x00412806, 0x00415804, 0x00417803, 0x00418803, 0x00419C07,
-    0x0041C404, 0x0042080C, 0x00423C01, 0x00426806, 0x0043EC01,
-    0x004D740C, 0x004E400A, 0x00500001, 0x0059B402, 0x005A0001,
-    0x005A6C02, 0x005BAC03, 0x005C4803, 0x005CC805, 0x005D4802,
-    0x005DC802, 0x005ED023, 0x005F6004, 0x005F7401, 0x0060000F,
-    0x0062A401, 0x0064800C, 0x0064C00C, 0x00650001, 0x00651002,
-    0x0066C011, 0x00672002, 0x00677822, 0x00685C05, 0x00687802,
-    0x0069540A, 0x0069801D, 0x0069FC01, 0x006A8007, 0x006AA006,
-    0x006C0005, 0x006CD011, 0x006D6823, 0x006E0003, 0x006E840D,
-    0x006F980E, 0x006FF004, 0x00709014, 0x0070EC05, 0x0071F802,
-    0x00730008, 0x00734019, 0x0073B401, 0x0073C803, 0x00770027,
-    0x0077F004, 0x007EF401, 0x007EFC03, 0x007F3403, 0x007F7403,
-    0x007FB403, 0x007FF402, 0x00800065, 0x0081A806, 0x0081E805,
-    0x00822805, 0x0082801A, 0x00834021, 0x00840002, 0x00840C04,
-    0x00842002, 0x00845001, 0x00845803, 0x00847806, 0x00849401,
-    0x00849C01, 0x0084A401, 0x0084B801, 0x0084E802, 0x00850005,
-    0x00852804, 0x00853C01, 0x00864264, 0x00900027, 0x0091000B,
-    0x0092704E, 0x00940200, 0x009C0475, 0x009E53B9, 0x00AD400A,
-    0x00B39406, 0x00B3BC03, 0x00B3E404, 0x00B3F802, 0x00B5C001,
-    0x00B5FC01, 0x00B7804F, 0x00B8C00C, 0x00BA001A, 0x00BA6C59,
-    0x00BC00D6, 0x00BFC00C, 0x00C00005, 0x00C02019, 0x00C0A807,
-    0x00C0D802, 0x00C0F403, 0x00C26404, 0x00C28001, 0x00C3EC01,
-    0x00C64002, 0x00C6580A, 0x00C70024, 0x00C8001F, 0x00C8A81E,
-    0x00C94001, 0x00C98020, 0x00CA2827, 0x00CB003F, 0x00CC0100,
-    0x01370040, 0x02924037, 0x0293F802, 0x02983403, 0x0299BC10,
-    0x029A7C01, 0x029BC008, 0x029C0017, 0x029C8002, 0x029E2402,
-    0x02A00801, 0x02A01801, 0x02A02C01, 0x02A08C09, 0x02A0D804,
-    0x02A1D004, 0x02A20002, 0x02A2D011, 0x02A33802, 0x02A38012,
-    0x02A3E003, 0x02A4980A, 0x02A51C0D, 0x02A57C01, 0x02A60004,
-    0x02A6CC1B, 0x02A77802, 0x02A8A40E, 0x02A90C01, 0x02A93002,
-    0x02A97004, 0x02A9DC03, 0x02A9EC01, 0x02AAC001, 0x02AAC803,
-    0x02AADC02, 0x02AAF802, 0x02AB0401, 0x02AB7802, 0x02ABAC07,
-    0x02ABD402, 0x02AF8C0B, 0x03600001, 0x036DFC02, 0x036FFC02,
-    0x037FFC01, 0x03EC7801, 0x03ECA401, 0x03EEC810, 0x03F4F802,
-    0x03F7F002, 0x03F8001A, 0x03F88007, 0x03F8C023, 0x03F95013,
-    0x03F9A004, 0x03FBFC01, 0x03FC040F, 0x03FC6807, 0x03FCEC06,
-    0x03FD6C0B, 0x03FF8007, 0x03FFA007, 0x03FFE405, 0x04040003,
-    0x0404DC09, 0x0405E411, 0x0406400C, 0x0407402E, 0x040E7C01,
-    0x040F4001, 0x04215C01, 0x04247C01, 0x0424FC01, 0x04280403,
-    0x04281402, 0x04283004, 0x0428E003, 0x0428FC01, 0x04294009,
-    0x0429FC01, 0x042CE407, 0x04400003, 0x0440E016, 0x04420003,
-    0x0442C012, 0x04440003, 0x04449C0E, 0x04450004, 0x04460003,
-    0x0446CC0E, 0x04471404, 0x045AAC0D, 0x0491C004, 0x05BD442E,
-    0x05BE3C04, 0x074000F6, 0x07440027, 0x0744A4B5, 0x07480046,
-    0x074C0057, 0x075B0401, 0x075B6C01, 0x075BEC01, 0x075C5401,
-    0x075CD401, 0x075D3C01, 0x075DBC01, 0x075E2401, 0x075EA401,
-    0x075F0C01, 0x07BBC002, 0x07C0002C, 0x07C0C064, 0x07C2800F,
-    0x07C2C40E, 0x07C3040F, 0x07C3440F, 0x07C4401F, 0x07C4C03C,
-    0x07C5C02B, 0x07C7981D, 0x07C8402B, 0x07C90009, 0x07C94002,
-    0x07CC0021, 0x07CCC006, 0x07CCDC46, 0x07CE0014, 0x07CE8025,
-    0x07CF1805, 0x07CF8011, 0x07D0003F, 0x07D10001, 0x07D108B6,
-    0x07D3E404, 0x07D4003E, 0x07D50004, 0x07D54018, 0x07D7EC46,
-    0x07D9140B, 0x07DA0046, 0x07DC0074, 0x38000401, 0x38008060,
-    0x380400F0,
-  };
-  static const unsigned int aAscii[4] = {
-    0xFFFFFFFF, 0xFC00FFFF, 0xF8000001, 0xF8000001,
-  };
-
-  if( (unsigned int)c<128 ){
-    return ( (aAscii[c >> 5] & ((unsigned int)1 << (c & 0x001F)))==0 );
-  }else if( (unsigned int)c<(1<<22) ){
-    unsigned int key = (((unsigned int)c)<<10) | 0x000003FF;
-    int iRes = 0;
-    int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
-    int iLo = 0;
-    while( iHi>=iLo ){
-      int iTest = (iHi + iLo) / 2;
-      if( key >= aEntry[iTest] ){
-        iRes = iTest;
-        iLo = iTest+1;
-      }else{
-        iHi = iTest-1;
-      }
-    }
-    assert( aEntry[0]<key );
-    assert( key>=aEntry[iRes] );
-    return (((unsigned int)c) >= ((aEntry[iRes]>>10) + (aEntry[iRes]&0x3FF)));
-  }
-  return 1;
-}
-
-
-/*
-** If the argument is a codepoint corresponding to a lowercase letter
-** in the ASCII range with a diacritic added, return the codepoint
-** of the ASCII letter only. For example, if passed 235 - "LATIN
-** SMALL LETTER E WITH DIAERESIS" - return 65 ("LATIN SMALL LETTER
-** E"). The resuls of passing a codepoint that corresponds to an
-** uppercase letter are undefined.
-*/
-static int remove_diacritic(int c, int bComplex){
-  unsigned short aDia[] = {
-        0,  1797,  1848,  1859,  1891,  1928,  1940,  1995, 
-     2024,  2040,  2060,  2110,  2168,  2206,  2264,  2286, 
-     2344,  2383,  2472,  2488,  2516,  2596,  2668,  2732, 
-     2782,  2842,  2894,  2954,  2984,  3000,  3028,  3336, 
-     3456,  3696,  3712,  3728,  3744,  3766,  3832,  3896, 
-     3912,  3928,  3944,  3968,  4008,  4040,  4056,  4106, 
-     4138,  4170,  4202,  4234,  4266,  4296,  4312,  4344, 
-     4408,  4424,  4442,  4472,  4488,  4504,  6148,  6198, 
-     6264,  6280,  6360,  6429,  6505,  6529, 61448, 61468, 
-    61512, 61534, 61592, 61610, 61642, 61672, 61688, 61704, 
-    61726, 61784, 61800, 61816, 61836, 61880, 61896, 61914, 
-    61948, 61998, 62062, 62122, 62154, 62184, 62200, 62218, 
-    62252, 62302, 62364, 62410, 62442, 62478, 62536, 62554, 
-    62584, 62604, 62640, 62648, 62656, 62664, 62730, 62766, 
-    62830, 62890, 62924, 62974, 63032, 63050, 63082, 63118, 
-    63182, 63242, 63274, 63310, 63368, 63390, 
-  };
-#define HIBIT ((unsigned char)0x80)
-  unsigned char aChar[] = {
-    '\0',      'a',       'c',       'e',       'i',       'n',       
-    'o',       'u',       'y',       'y',       'a',       'c',       
-    'd',       'e',       'e',       'g',       'h',       'i',       
-    'j',       'k',       'l',       'n',       'o',       'r',       
-    's',       't',       'u',       'u',       'w',       'y',       
-    'z',       'o',       'u',       'a',       'i',       'o',       
-    'u',       'u'|HIBIT, 'a'|HIBIT, 'g',       'k',       'o',       
-    'o'|HIBIT, 'j',       'g',       'n',       'a'|HIBIT, 'a',       
-    'e',       'i',       'o',       'r',       'u',       's',       
-    't',       'h',       'a',       'e',       'o'|HIBIT, 'o',       
-    'o'|HIBIT, 'y',       '\0',      '\0',      '\0',      '\0',      
-    '\0',      '\0',      '\0',      '\0',      'a',       'b',       
-    'c'|HIBIT, 'd',       'd',       'e'|HIBIT, 'e',       'e'|HIBIT, 
-    'f',       'g',       'h',       'h',       'i',       'i'|HIBIT, 
-    'k',       'l',       'l'|HIBIT, 'l',       'm',       'n',       
-    'o'|HIBIT, 'p',       'r',       'r'|HIBIT, 'r',       's',       
-    's'|HIBIT, 't',       'u',       'u'|HIBIT, 'v',       'w',       
-    'w',       'x',       'y',       'z',       'h',       't',       
-    'w',       'y',       'a',       'a'|HIBIT, 'a'|HIBIT, 'a'|HIBIT, 
-    'e',       'e'|HIBIT, 'e'|HIBIT, 'i',       'o',       'o'|HIBIT, 
-    'o'|HIBIT, 'o'|HIBIT, 'u',       'u'|HIBIT, 'u'|HIBIT, 'y',       
-  };
-
-  unsigned int key = (((unsigned int)c)<<3) | 0x00000007;
-  int iRes = 0;
-  int iHi = sizeof(aDia)/sizeof(aDia[0]) - 1;
-  int iLo = 0;
-  while( iHi>=iLo ){
-    int iTest = (iHi + iLo) / 2;
-    if( key >= aDia[iTest] ){
-      iRes = iTest;
-      iLo = iTest+1;
-    }else{
-      iHi = iTest-1;
-    }
-  }
-  assert( key>=aDia[iRes] );
-  if( bComplex==0 && (aChar[iRes] & 0x80) ) return c;
-  return (c > (aDia[iRes]>>3) + (aDia[iRes]&0x07)) ? c : ((int)aChar[iRes] & 0x7F);
-}
-
-
-/*
-** Return true if the argument interpreted as a unicode codepoint
-** is a diacritical modifier character.
-*/
-SQLITE_PRIVATE int tdsqlite3FtsUnicodeIsdiacritic(int c){
-  unsigned int mask0 = 0x08029FDF;
-  unsigned int mask1 = 0x000361F8;
-  if( c<768 || c>817 ) return 0;
-  return (c < 768+32) ?
-      (mask0 & ((unsigned int)1 << (c-768))) :
-      (mask1 & ((unsigned int)1 << (c-768-32)));
-}
-
-
-/*
-** Interpret the argument as a unicode codepoint. If the codepoint
-** is an upper case character that has a lower case equivalent,
-** return the codepoint corresponding to the lower case version.
-** Otherwise, return a copy of the argument.
-**
-** The results are undefined if the value passed to this function
-** is less than zero.
-*/
-SQLITE_PRIVATE int tdsqlite3FtsUnicodeFold(int c, int eRemoveDiacritic){
-  /* Each entry in the following array defines a rule for folding a range
-  ** of codepoints to lower case. The rule applies to a range of nRange
-  ** codepoints starting at codepoint iCode.
-  **
-  ** If the least significant bit in flags is clear, then the rule applies
-  ** to all nRange codepoints (i.e. all nRange codepoints are upper case and
-  ** need to be folded). Or, if it is set, then the rule only applies to
-  ** every second codepoint in the range, starting with codepoint C.
-  **
-  ** The 7 most significant bits in flags are an index into the aiOff[]
-  ** array. If a specific codepoint C does require folding, then its lower
-  ** case equivalent is ((C + aiOff[flags>>1]) & 0xFFFF).
-  **
-  ** The contents of this array are generated by parsing the CaseFolding.txt
-  ** file distributed as part of the "Unicode Character Database". See
-  ** http://www.unicode.org for details.
-  */
-  static const struct TableEntry {
-    unsigned short iCode;
-    unsigned char flags;
-    unsigned char nRange;
-  } aEntry[] = {
-    {65, 14, 26},          {181, 64, 1},          {192, 14, 23},
-    {216, 14, 7},          {256, 1, 48},          {306, 1, 6},
-    {313, 1, 16},          {330, 1, 46},          {376, 116, 1},
-    {377, 1, 6},           {383, 104, 1},         {385, 50, 1},
-    {386, 1, 4},           {390, 44, 1},          {391, 0, 1},
-    {393, 42, 2},          {395, 0, 1},           {398, 32, 1},
-    {399, 38, 1},          {400, 40, 1},          {401, 0, 1},
-    {403, 42, 1},          {404, 46, 1},          {406, 52, 1},
-    {407, 48, 1},          {408, 0, 1},           {412, 52, 1},
-    {413, 54, 1},          {415, 56, 1},          {416, 1, 6},
-    {422, 60, 1},          {423, 0, 1},           {425, 60, 1},
-    {428, 0, 1},           {430, 60, 1},          {431, 0, 1},
-    {433, 58, 2},          {435, 1, 4},           {439, 62, 1},
-    {440, 0, 1},           {444, 0, 1},           {452, 2, 1},
-    {453, 0, 1},           {455, 2, 1},           {456, 0, 1},
-    {458, 2, 1},           {459, 1, 18},          {478, 1, 18},
-    {497, 2, 1},           {498, 1, 4},           {502, 122, 1},
-    {503, 134, 1},         {504, 1, 40},          {544, 110, 1},
-    {546, 1, 18},          {570, 70, 1},          {571, 0, 1},
-    {573, 108, 1},         {574, 68, 1},          {577, 0, 1},
-    {579, 106, 1},         {580, 28, 1},          {581, 30, 1},
-    {582, 1, 10},          {837, 36, 1},          {880, 1, 4},
-    {886, 0, 1},           {902, 18, 1},          {904, 16, 3},
-    {908, 26, 1},          {910, 24, 2},          {913, 14, 17},
-    {931, 14, 9},          {962, 0, 1},           {975, 4, 1},
-    {976, 140, 1},         {977, 142, 1},         {981, 146, 1},
-    {982, 144, 1},         {984, 1, 24},          {1008, 136, 1},
-    {1009, 138, 1},        {1012, 130, 1},        {1013, 128, 1},
-    {1015, 0, 1},          {1017, 152, 1},        {1018, 0, 1},
-    {1021, 110, 3},        {1024, 34, 16},        {1040, 14, 32},
-    {1120, 1, 34},         {1162, 1, 54},         {1216, 6, 1},
-    {1217, 1, 14},         {1232, 1, 88},         {1329, 22, 38},
-    {4256, 66, 38},        {4295, 66, 1},         {4301, 66, 1},
-    {7680, 1, 150},        {7835, 132, 1},        {7838, 96, 1},
-    {7840, 1, 96},         {7944, 150, 8},        {7960, 150, 6},
-    {7976, 150, 8},        {7992, 150, 8},        {8008, 150, 6},
-    {8025, 151, 8},        {8040, 150, 8},        {8072, 150, 8},
-    {8088, 150, 8},        {8104, 150, 8},        {8120, 150, 2},
-    {8122, 126, 2},        {8124, 148, 1},        {8126, 100, 1},
-    {8136, 124, 4},        {8140, 148, 1},        {8152, 150, 2},
-    {8154, 120, 2},        {8168, 150, 2},        {8170, 118, 2},
-    {8172, 152, 1},        {8184, 112, 2},        {8186, 114, 2},
-    {8188, 148, 1},        {8486, 98, 1},         {8490, 92, 1},
-    {8491, 94, 1},         {8498, 12, 1},         {8544, 8, 16},
-    {8579, 0, 1},          {9398, 10, 26},        {11264, 22, 47},
-    {11360, 0, 1},         {11362, 88, 1},        {11363, 102, 1},
-    {11364, 90, 1},        {11367, 1, 6},         {11373, 84, 1},
-    {11374, 86, 1},        {11375, 80, 1},        {11376, 82, 1},
-    {11378, 0, 1},         {11381, 0, 1},         {11390, 78, 2},
-    {11392, 1, 100},       {11499, 1, 4},         {11506, 0, 1},
-    {42560, 1, 46},        {42624, 1, 24},        {42786, 1, 14},
-    {42802, 1, 62},        {42873, 1, 4},         {42877, 76, 1},
-    {42878, 1, 10},        {42891, 0, 1},         {42893, 74, 1},
-    {42896, 1, 4},         {42912, 1, 10},        {42922, 72, 1},
-    {65313, 14, 26},       
-  };
-  static const unsigned short aiOff[] = {
-   1,     2,     8,     15,    16,    26,    28,    32,    
-   37,    38,    40,    48,    63,    64,    69,    71,    
-   79,    80,    116,   202,   203,   205,   206,   207,   
-   209,   210,   211,   213,   214,   217,   218,   219,   
-   775,   7264,  10792, 10795, 23228, 23256, 30204, 54721, 
-   54753, 54754, 54756, 54787, 54793, 54809, 57153, 57274, 
-   57921, 58019, 58363, 61722, 65268, 65341, 65373, 65406, 
-   65408, 65410, 65415, 65424, 65436, 65439, 65450, 65462, 
-   65472, 65476, 65478, 65480, 65482, 65488, 65506, 65511, 
-   65514, 65521, 65527, 65528, 65529, 
-  };
-
-  int ret = c;
-
-  assert( sizeof(unsigned short)==2 && sizeof(unsigned char)==1 );
-
-  if( c<128 ){
-    if( c>='A' && c<='Z' ) ret = c + ('a' - 'A');
-  }else if( c<65536 ){
-    const struct TableEntry *p;
-    int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
-    int iLo = 0;
-    int iRes = -1;
-
-    assert( c>aEntry[0].iCode );
-    while( iHi>=iLo ){
-      int iTest = (iHi + iLo) / 2;
-      int cmp = (c - aEntry[iTest].iCode);
-      if( cmp>=0 ){
-        iRes = iTest;
-        iLo = iTest+1;
-      }else{
-        iHi = iTest-1;
-      }
-    }
-
-    assert( iRes>=0 && c>=aEntry[iRes].iCode );
-    p = &aEntry[iRes];
-    if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){
-      ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF;
-      assert( ret>0 );
-    }
-
-    if( eRemoveDiacritic ){
-      ret = remove_diacritic(ret, eRemoveDiacritic==2);
-    }
-  }
-  
-  else if( c>=66560 && c<66600 ){
-    ret = c + 40;
-  }
-
-  return ret;
-}
-#endif /* defined(SQLITE_ENABLE_FTS3) || defined(SQLITE_ENABLE_FTS4) */
-#endif /* !defined(SQLITE_DISABLE_FTS3_UNICODE) */
-
-/************** End of fts3_unicode2.c ***************************************/
-/************** Begin file json1.c *******************************************/
-/*
-** 2015-08-12
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This SQLite extension implements JSON functions.  The interface is
-** modeled after MySQL JSON functions:
-**
-**     https://dev.mysql.com/doc/refman/5.7/en/json.html
-**
-** For the time being, all JSON is stored as pure text.  (We might add
-** a JSONB type in the future which stores a binary encoding of JSON in
-** a BLOB, but there is no support for JSONB in the current implementation.
-** This implementation parses JSON text at 250 MB/s, so it is hard to see
-** how JSONB might improve on that.)
-*/
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_JSON1)
-#if !defined(SQLITEINT_H)
-/* #include "tdsqlite3ext.h" */
-#endif
-SQLITE_EXTENSION_INIT1
-/* #include <assert.h> */
-/* #include <string.h> */
-/* #include <stdlib.h> */
-/* #include <stdarg.h> */
-
-/* Mark a function parameter as unused, to suppress nuisance compiler
-** warnings. */
-#ifndef UNUSED_PARAM
-# define UNUSED_PARAM(X)  (void)(X)
-#endif
-
-#ifndef LARGEST_INT64
-# define LARGEST_INT64  (0xffffffff|(((tdsqlite3_int64)0x7fffffff)<<32))
-# define SMALLEST_INT64 (((tdsqlite3_int64)-1) - LARGEST_INT64)
-#endif
-
-/*
-** Versions of isspace(), isalnum() and isdigit() to which it is safe
-** to pass signed char values.
-*/
-#ifdef tdsqlite3Isdigit
-   /* Use the SQLite core versions if this routine is part of the
-   ** SQLite amalgamation */
-#  define safe_isdigit(x)  tdsqlite3Isdigit(x)
-#  define safe_isalnum(x)  tdsqlite3Isalnum(x)
-#  define safe_isxdigit(x) tdsqlite3Isxdigit(x)
-#else
-   /* Use the standard library for separate compilation */
-#include <ctype.h>  /* amalgamator: keep */
-#  define safe_isdigit(x)  isdigit((unsigned char)(x))
-#  define safe_isalnum(x)  isalnum((unsigned char)(x))
-#  define safe_isxdigit(x) isxdigit((unsigned char)(x))
-#endif
-
-/*
-** Growing our own isspace() routine this way is twice as fast as
-** the library isspace() function, resulting in a 7% overall performance
-** increase for the parser.  (Ubuntu14.10 gcc 4.8.4 x64 with -Os).
-*/
-static const char jsonIsSpace[] = {
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 1, 1, 0, 0, 1, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  1, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-};
-#define safe_isspace(x) (jsonIsSpace[(unsigned char)x])
-
-#ifndef SQLITE_AMALGAMATION
-  /* Unsigned integer types.  These are already defined in the sqliteInt.h,
-  ** but the definitions need to be repeated for separate compilation. */
-  typedef tdsqlite3_uint64 u64;
-  typedef unsigned int u32;
-  typedef unsigned short int u16;
-  typedef unsigned char u8;
-#endif
-
-/* Objects */
-typedef struct JsonString JsonString;
-typedef struct JsonNode JsonNode;
-typedef struct JsonParse JsonParse;
-
-/* An instance of this object represents a JSON string
-** under construction.  Really, this is a generic string accumulator
-** that can be and is used to create strings other than JSON.
-*/
-struct JsonString {
-  tdsqlite3_context *pCtx;   /* Function context - put error messages here */
-  char *zBuf;              /* Append JSON content here */
-  u64 nAlloc;              /* Bytes of storage available in zBuf[] */
-  u64 nUsed;               /* Bytes of zBuf[] currently used */
-  u8 bStatic;              /* True if zBuf is static space */
-  u8 bErr;                 /* True if an error has been encountered */
-  char zSpace[100];        /* Initial static space */
-};
-
-/* JSON type values
-*/
-#define JSON_NULL     0
-#define JSON_TRUE     1
-#define JSON_FALSE    2
-#define JSON_INT      3
-#define JSON_REAL     4
-#define JSON_STRING   5
-#define JSON_ARRAY    6
-#define JSON_OBJECT   7
-
-/* The "subtype" set for JSON values */
-#define JSON_SUBTYPE  74    /* Ascii for "J" */
-
-/*
-** Names of the various JSON types:
-*/
-static const char * const jsonType[] = {
-  "null", "true", "false", "integer", "real", "text", "array", "object"
-};
-
-/* Bit values for the JsonNode.jnFlag field
-*/
-#define JNODE_RAW     0x01         /* Content is raw, not JSON encoded */
-#define JNODE_ESCAPE  0x02         /* Content is text with \ escapes */
-#define JNODE_REMOVE  0x04         /* Do not output */
-#define JNODE_REPLACE 0x08         /* Replace with JsonNode.u.iReplace */
-#define JNODE_PATCH   0x10         /* Patch with JsonNode.u.pPatch */
-#define JNODE_APPEND  0x20         /* More ARRAY/OBJECT entries at u.iAppend */
-#define JNODE_LABEL   0x40         /* Is a label of an object */
-
-
-/* A single node of parsed JSON
-*/
-struct JsonNode {
-  u8 eType;              /* One of the JSON_ type values */
-  u8 jnFlags;            /* JNODE flags */
-  u32 n;                 /* Bytes of content, or number of sub-nodes */
-  union {
-    const char *zJContent; /* Content for INT, REAL, and STRING */
-    u32 iAppend;           /* More terms for ARRAY and OBJECT */
-    u32 iKey;              /* Key for ARRAY objects in json_tree() */
-    u32 iReplace;          /* Replacement content for JNODE_REPLACE */
-    JsonNode *pPatch;      /* Node chain of patch for JNODE_PATCH */
-  } u;
-};
-
-/* A completely parsed JSON string
-*/
-struct JsonParse {
-  u32 nNode;         /* Number of slots of aNode[] used */
-  u32 nAlloc;        /* Number of slots of aNode[] allocated */
-  JsonNode *aNode;   /* Array of nodes containing the parse */
-  const char *zJson; /* Original JSON string */
-  u32 *aUp;          /* Index of parent of each node */
-  u8 oom;            /* Set to true if out of memory */
-  u8 nErr;           /* Number of errors seen */
-  u16 iDepth;        /* Nesting depth */
-  int nJson;         /* Length of the zJson string in bytes */
-  u32 iHold;         /* Replace cache line with the lowest iHold value */
-};
-
-/*
-** Maximum nesting depth of JSON for this implementation.
-**
-** This limit is needed to avoid a stack overflow in the recursive
-** descent parser.  A depth of 2000 is far deeper than any sane JSON
-** should go.
-*/
-#define JSON_MAX_DEPTH  2000
-
-/**************************************************************************
-** Utility routines for dealing with JsonString objects
-**************************************************************************/
-
-/* Set the JsonString object to an empty string
-*/
-static void jsonZero(JsonString *p){
-  p->zBuf = p->zSpace;
-  p->nAlloc = sizeof(p->zSpace);
-  p->nUsed = 0;
-  p->bStatic = 1;
-}
-
-/* Initialize the JsonString object
-*/
-static void jsonInit(JsonString *p, tdsqlite3_context *pCtx){
-  p->pCtx = pCtx;
-  p->bErr = 0;
-  jsonZero(p);
-}
-
-
-/* Free all allocated memory and reset the JsonString object back to its
-** initial state.
-*/
-static void jsonReset(JsonString *p){
-  if( !p->bStatic ) tdsqlite3_free(p->zBuf);
-  jsonZero(p);
-}
-
-
-/* Report an out-of-memory (OOM) condition 
-*/
-static void jsonOom(JsonString *p){
-  p->bErr = 1;
-  tdsqlite3_result_error_nomem(p->pCtx);
-  jsonReset(p);
-}
-
-/* Enlarge pJson->zBuf so that it can hold at least N more bytes.
-** Return zero on success.  Return non-zero on an OOM error
-*/
-static int jsonGrow(JsonString *p, u32 N){
-  u64 nTotal = N<p->nAlloc ? p->nAlloc*2 : p->nAlloc+N+10;
-  char *zNew;
-  if( p->bStatic ){
-    if( p->bErr ) return 1;
-    zNew = tdsqlite3_malloc64(nTotal);
-    if( zNew==0 ){
-      jsonOom(p);
-      return SQLITE_NOMEM;
-    }
-    memcpy(zNew, p->zBuf, (size_t)p->nUsed);
-    p->zBuf = zNew;
-    p->bStatic = 0;
-  }else{
-    zNew = tdsqlite3_realloc64(p->zBuf, nTotal);
-    if( zNew==0 ){
-      jsonOom(p);
-      return SQLITE_NOMEM;
-    }
-    p->zBuf = zNew;
-  }
-  p->nAlloc = nTotal;
-  return SQLITE_OK;
-}
-
-/* Append N bytes from zIn onto the end of the JsonString string.
-*/
-static void jsonAppendRaw(JsonString *p, const char *zIn, u32 N){
-  if( (N+p->nUsed >= p->nAlloc) && jsonGrow(p,N)!=0 ) return;
-  memcpy(p->zBuf+p->nUsed, zIn, N);
-  p->nUsed += N;
-}
-
-/* Append formatted text (not to exceed N bytes) to the JsonString.
-*/
-static void jsonPrintf(int N, JsonString *p, const char *zFormat, ...){
-  va_list ap;
-  if( (p->nUsed + N >= p->nAlloc) && jsonGrow(p, N) ) return;
-  va_start(ap, zFormat);
-  tdsqlite3_vsnprintf(N, p->zBuf+p->nUsed, zFormat, ap);
-  va_end(ap);
-  p->nUsed += (int)strlen(p->zBuf+p->nUsed);
-}
-
-/* Append a single character
-*/
-static void jsonAppendChar(JsonString *p, char c){
-  if( p->nUsed>=p->nAlloc && jsonGrow(p,1)!=0 ) return;
-  p->zBuf[p->nUsed++] = c;
-}
-
-/* Append a comma separator to the output buffer, if the previous
-** character is not '[' or '{'.
-*/
-static void jsonAppendSeparator(JsonString *p){
-  char c;
-  if( p->nUsed==0 ) return;
-  c = p->zBuf[p->nUsed-1];
-  if( c!='[' && c!='{' ) jsonAppendChar(p, ',');
-}
-
-/* Append the N-byte string in zIn to the end of the JsonString string
-** under construction.  Enclose the string in "..." and escape
-** any double-quotes or backslash characters contained within the
-** string.
-*/
-static void jsonAppendString(JsonString *p, const char *zIn, u32 N){
-  u32 i;
-  if( (N+p->nUsed+2 >= p->nAlloc) && jsonGrow(p,N+2)!=0 ) return;
-  p->zBuf[p->nUsed++] = '"';
-  for(i=0; i<N; i++){
-    unsigned char c = ((unsigned const char*)zIn)[i];
-    if( c=='"' || c=='\\' ){
-      json_simple_escape:
-      if( (p->nUsed+N+3-i > p->nAlloc) && jsonGrow(p,N+3-i)!=0 ) return;
-      p->zBuf[p->nUsed++] = '\\';
-    }else if( c<=0x1f ){
-      static const char aSpecial[] = {
-         0, 0, 0, 0, 0, 0, 0, 0, 'b', 't', 'n', 0, 'f', 'r', 0, 0,
-         0, 0, 0, 0, 0, 0, 0, 0,   0,   0,   0, 0,   0,   0, 0, 0
-      };
-      assert( sizeof(aSpecial)==32 );
-      assert( aSpecial['\b']=='b' );
-      assert( aSpecial['\f']=='f' );
-      assert( aSpecial['\n']=='n' );
-      assert( aSpecial['\r']=='r' );
-      assert( aSpecial['\t']=='t' );
-      if( aSpecial[c] ){
-        c = aSpecial[c];
-        goto json_simple_escape;
-      }
-      if( (p->nUsed+N+7+i > p->nAlloc) && jsonGrow(p,N+7-i)!=0 ) return;
-      p->zBuf[p->nUsed++] = '\\';
-      p->zBuf[p->nUsed++] = 'u';
-      p->zBuf[p->nUsed++] = '0';
-      p->zBuf[p->nUsed++] = '0';
-      p->zBuf[p->nUsed++] = '0' + (c>>4);
-      c = "0123456789abcdef"[c&0xf];
-    }
-    p->zBuf[p->nUsed++] = c;
-  }
-  p->zBuf[p->nUsed++] = '"';
-  assert( p->nUsed<p->nAlloc );
-}
-
-/*
-** Append a function parameter value to the JSON string under 
-** construction.
-*/
-static void jsonAppendValue(
-  JsonString *p,                 /* Append to this JSON string */
-  tdsqlite3_value *pValue          /* Value to append */
-){
-  switch( tdsqlite3_value_type(pValue) ){
-    case SQLITE_NULL: {
-      jsonAppendRaw(p, "null", 4);
-      break;
-    }
-    case SQLITE_INTEGER:
-    case SQLITE_FLOAT: {
-      const char *z = (const char*)tdsqlite3_value_text(pValue);
-      u32 n = (u32)tdsqlite3_value_bytes(pValue);
-      jsonAppendRaw(p, z, n);
-      break;
-    }
-    case SQLITE_TEXT: {
-      const char *z = (const char*)tdsqlite3_value_text(pValue);
-      u32 n = (u32)tdsqlite3_value_bytes(pValue);
-      if( tdsqlite3_value_subtype(pValue)==JSON_SUBTYPE ){
-        jsonAppendRaw(p, z, n);
-      }else{
-        jsonAppendString(p, z, n);
-      }
-      break;
-    }
-    default: {
-      if( p->bErr==0 ){
-        tdsqlite3_result_error(p->pCtx, "JSON cannot hold BLOB values", -1);
-        p->bErr = 2;
-        jsonReset(p);
-      }
-      break;
-    }
-  }
-}
-
-
-/* Make the JSON in p the result of the SQL function.
-*/
-static void jsonResult(JsonString *p){
-  if( p->bErr==0 ){
-    tdsqlite3_result_text64(p->pCtx, p->zBuf, p->nUsed, 
-                          p->bStatic ? SQLITE_TRANSIENT : tdsqlite3_free,
-                          SQLITE_UTF8);
-    jsonZero(p);
-  }
-  assert( p->bStatic );
-}
-
-/**************************************************************************
-** Utility routines for dealing with JsonNode and JsonParse objects
-**************************************************************************/
-
-/*
-** Return the number of consecutive JsonNode slots need to represent
-** the parsed JSON at pNode.  The minimum answer is 1.  For ARRAY and
-** OBJECT types, the number might be larger.
-**
-** Appended elements are not counted.  The value returned is the number
-** by which the JsonNode counter should increment in order to go to the
-** next peer value.
-*/
-static u32 jsonNodeSize(JsonNode *pNode){
-  return pNode->eType>=JSON_ARRAY ? pNode->n+1 : 1;
-}
-
-/*
-** Reclaim all memory allocated by a JsonParse object.  But do not
-** delete the JsonParse object itself.
-*/
-static void jsonParseReset(JsonParse *pParse){
-  tdsqlite3_free(pParse->aNode);
-  pParse->aNode = 0;
-  pParse->nNode = 0;
-  pParse->nAlloc = 0;
-  tdsqlite3_free(pParse->aUp);
-  pParse->aUp = 0;
-}
-
-/*
-** Free a JsonParse object that was obtained from tdsqlite3_malloc().
-*/
-static void jsonParseFree(JsonParse *pParse){
-  jsonParseReset(pParse);
-  tdsqlite3_free(pParse);
-}
-
-/*
-** Convert the JsonNode pNode into a pure JSON string and
-** append to pOut.  Subsubstructure is also included.  Return
-** the number of JsonNode objects that are encoded.
-*/
-static void jsonRenderNode(
-  JsonNode *pNode,               /* The node to render */
-  JsonString *pOut,              /* Write JSON here */
-  tdsqlite3_value **aReplace       /* Replacement values */
-){
-  if( pNode->jnFlags & (JNODE_REPLACE|JNODE_PATCH) ){
-    if( pNode->jnFlags & JNODE_REPLACE ){
-      jsonAppendValue(pOut, aReplace[pNode->u.iReplace]);
-      return;
-    }
-    pNode = pNode->u.pPatch;
-  }
-  switch( pNode->eType ){
-    default: {
-      assert( pNode->eType==JSON_NULL );
-      jsonAppendRaw(pOut, "null", 4);
-      break;
-    }
-    case JSON_TRUE: {
-      jsonAppendRaw(pOut, "true", 4);
-      break;
-    }
-    case JSON_FALSE: {
-      jsonAppendRaw(pOut, "false", 5);
-      break;
-    }
-    case JSON_STRING: {
-      if( pNode->jnFlags & JNODE_RAW ){
-        jsonAppendString(pOut, pNode->u.zJContent, pNode->n);
-        break;
-      }
-      /* Fall through into the next case */
-    }
-    case JSON_REAL:
-    case JSON_INT: {
-      jsonAppendRaw(pOut, pNode->u.zJContent, pNode->n);
-      break;
-    }
-    case JSON_ARRAY: {
-      u32 j = 1;
-      jsonAppendChar(pOut, '[');
-      for(;;){
-        while( j<=pNode->n ){
-          if( (pNode[j].jnFlags & JNODE_REMOVE)==0 ){
-            jsonAppendSeparator(pOut);
-            jsonRenderNode(&pNode[j], pOut, aReplace);
-          }
-          j += jsonNodeSize(&pNode[j]);
-        }
-        if( (pNode->jnFlags & JNODE_APPEND)==0 ) break;
-        pNode = &pNode[pNode->u.iAppend];
-        j = 1;
-      }
-      jsonAppendChar(pOut, ']');
-      break;
-    }
-    case JSON_OBJECT: {
-      u32 j = 1;
-      jsonAppendChar(pOut, '{');
-      for(;;){
-        while( j<=pNode->n ){
-          if( (pNode[j+1].jnFlags & JNODE_REMOVE)==0 ){
-            jsonAppendSeparator(pOut);
-            jsonRenderNode(&pNode[j], pOut, aReplace);
-            jsonAppendChar(pOut, ':');
-            jsonRenderNode(&pNode[j+1], pOut, aReplace);
-          }
-          j += 1 + jsonNodeSize(&pNode[j+1]);
-        }
-        if( (pNode->jnFlags & JNODE_APPEND)==0 ) break;
-        pNode = &pNode[pNode->u.iAppend];
-        j = 1;
-      }
-      jsonAppendChar(pOut, '}');
-      break;
-    }
-  }
-}
-
-/*
-** Return a JsonNode and all its descendents as a JSON string.
-*/
-static void jsonReturnJson(
-  JsonNode *pNode,            /* Node to return */
-  tdsqlite3_context *pCtx,      /* Return value for this function */
-  tdsqlite3_value **aReplace    /* Array of replacement values */
-){
-  JsonString s;
-  jsonInit(&s, pCtx);
-  jsonRenderNode(pNode, &s, aReplace);
-  jsonResult(&s);
-  tdsqlite3_result_subtype(pCtx, JSON_SUBTYPE);
-}
-
-/*
-** Translate a single byte of Hex into an integer.
-** This routine only works if h really is a valid hexadecimal
-** character:  0..9a..fA..F
-*/
-static u8 jsonHexToInt(int h){
-  assert( (h>='0' && h<='9') ||  (h>='a' && h<='f') ||  (h>='A' && h<='F') );
-#ifdef SQLITE_EBCDIC
-  h += 9*(1&~(h>>4));
-#else
-  h += 9*(1&(h>>6));
-#endif
-  return (u8)(h & 0xf);
-}
-
-/*
-** Convert a 4-byte hex string into an integer
-*/
-static u32 jsonHexToInt4(const char *z){
-  u32 v;
-  assert( safe_isxdigit(z[0]) );
-  assert( safe_isxdigit(z[1]) );
-  assert( safe_isxdigit(z[2]) );
-  assert( safe_isxdigit(z[3]) );
-  v = (jsonHexToInt(z[0])<<12)
-    + (jsonHexToInt(z[1])<<8)
-    + (jsonHexToInt(z[2])<<4)
-    + jsonHexToInt(z[3]);
-  return v;
-}
-
-/*
-** Make the JsonNode the return value of the function.
-*/
-static void jsonReturn(
-  JsonNode *pNode,            /* Node to return */
-  tdsqlite3_context *pCtx,      /* Return value for this function */
-  tdsqlite3_value **aReplace    /* Array of replacement values */
-){
-  switch( pNode->eType ){
-    default: {
-      assert( pNode->eType==JSON_NULL );
-      tdsqlite3_result_null(pCtx);
-      break;
-    }
-    case JSON_TRUE: {
-      tdsqlite3_result_int(pCtx, 1);
-      break;
-    }
-    case JSON_FALSE: {
-      tdsqlite3_result_int(pCtx, 0);
-      break;
-    }
-    case JSON_INT: {
-      tdsqlite3_int64 i = 0;
-      const char *z = pNode->u.zJContent;
-      if( z[0]=='-' ){ z++; }
-      while( z[0]>='0' && z[0]<='9' ){
-        unsigned v = *(z++) - '0';
-        if( i>=LARGEST_INT64/10 ){
-          if( i>LARGEST_INT64/10 ) goto int_as_real;
-          if( z[0]>='0' && z[0]<='9' ) goto int_as_real;
-          if( v==9 ) goto int_as_real;
-          if( v==8 ){
-            if( pNode->u.zJContent[0]=='-' ){
-              tdsqlite3_result_int64(pCtx, SMALLEST_INT64);
-              goto int_done;
-            }else{
-              goto int_as_real;
-            }
-          }
-        }
-        i = i*10 + v;
-      }
-      if( pNode->u.zJContent[0]=='-' ){ i = -i; }
-      tdsqlite3_result_int64(pCtx, i);
-      int_done:
-      break;
-      int_as_real: /* fall through to real */;
-    }
-    case JSON_REAL: {
-      double r;
-#ifdef SQLITE_AMALGAMATION
-      const char *z = pNode->u.zJContent;
-      tdsqlite3AtoF(z, &r, tdsqlite3Strlen30(z), SQLITE_UTF8);
-#else
-      r = strtod(pNode->u.zJContent, 0);
-#endif
-      tdsqlite3_result_double(pCtx, r);
-      break;
-    }
-    case JSON_STRING: {
-#if 0 /* Never happens because JNODE_RAW is only set by json_set(),
-      ** json_insert() and json_replace() and those routines do not
-      ** call jsonReturn() */
-      if( pNode->jnFlags & JNODE_RAW ){
-        tdsqlite3_result_text(pCtx, pNode->u.zJContent, pNode->n,
-                            SQLITE_TRANSIENT);
-      }else 
-#endif
-      assert( (pNode->jnFlags & JNODE_RAW)==0 );
-      if( (pNode->jnFlags & JNODE_ESCAPE)==0 ){
-        /* JSON formatted without any backslash-escapes */
-        tdsqlite3_result_text(pCtx, pNode->u.zJContent+1, pNode->n-2,
-                            SQLITE_TRANSIENT);
-      }else{
-        /* Translate JSON formatted string into raw text */
-        u32 i;
-        u32 n = pNode->n;
-        const char *z = pNode->u.zJContent;
-        char *zOut;
-        u32 j;
-        zOut = tdsqlite3_malloc( n+1 );
-        if( zOut==0 ){
-          tdsqlite3_result_error_nomem(pCtx);
-          break;
-        }
-        for(i=1, j=0; i<n-1; i++){
-          char c = z[i];
-          if( c!='\\' ){
-            zOut[j++] = c;
-          }else{
-            c = z[++i];
-            if( c=='u' ){
-              u32 v = jsonHexToInt4(z+i+1);
-              i += 4;
-              if( v==0 ) break;
-              if( v<=0x7f ){
-                zOut[j++] = (char)v;
-              }else if( v<=0x7ff ){
-                zOut[j++] = (char)(0xc0 | (v>>6));
-                zOut[j++] = 0x80 | (v&0x3f);
-              }else{
-                u32 vlo;
-                if( (v&0xfc00)==0xd800
-                  && i<n-6
-                  && z[i+1]=='\\'
-                  && z[i+2]=='u'
-                  && ((vlo = jsonHexToInt4(z+i+3))&0xfc00)==0xdc00
-                ){
-                  /* We have a surrogate pair */
-                  v = ((v&0x3ff)<<10) + (vlo&0x3ff) + 0x10000;
-                  i += 6;
-                  zOut[j++] = 0xf0 | (v>>18);
-                  zOut[j++] = 0x80 | ((v>>12)&0x3f);
-                  zOut[j++] = 0x80 | ((v>>6)&0x3f);
-                  zOut[j++] = 0x80 | (v&0x3f);
-                }else{
-                  zOut[j++] = 0xe0 | (v>>12);
-                  zOut[j++] = 0x80 | ((v>>6)&0x3f);
-                  zOut[j++] = 0x80 | (v&0x3f);
-                }
-              }
-            }else{
-              if( c=='b' ){
-                c = '\b';
-              }else if( c=='f' ){
-                c = '\f';
-              }else if( c=='n' ){
-                c = '\n';
-              }else if( c=='r' ){
-                c = '\r';
-              }else if( c=='t' ){
-                c = '\t';
-              }
-              zOut[j++] = c;
-            }
-          }
-        }
-        zOut[j] = 0;
-        tdsqlite3_result_text(pCtx, zOut, j, tdsqlite3_free);
-      }
-      break;
-    }
-    case JSON_ARRAY:
-    case JSON_OBJECT: {
-      jsonReturnJson(pNode, pCtx, aReplace);
-      break;
-    }
-  }
-}
-
-/* Forward reference */
-static int jsonParseAddNode(JsonParse*,u32,u32,const char*);
-
-/*
-** A macro to hint to the compiler that a function should not be
-** inlined.
-*/
-#if defined(__GNUC__)
-#  define JSON_NOINLINE  __attribute__((noinline))
-#elif defined(_MSC_VER) && _MSC_VER>=1310
-#  define JSON_NOINLINE  __declspec(noinline)
-#else
-#  define JSON_NOINLINE
-#endif
-
-
-static JSON_NOINLINE int jsonParseAddNodeExpand(
-  JsonParse *pParse,        /* Append the node to this object */
-  u32 eType,                /* Node type */
-  u32 n,                    /* Content size or sub-node count */
-  const char *zContent      /* Content */
-){
-  u32 nNew;
-  JsonNode *pNew;
-  assert( pParse->nNode>=pParse->nAlloc );
-  if( pParse->oom ) return -1;
-  nNew = pParse->nAlloc*2 + 10;
-  pNew = tdsqlite3_realloc64(pParse->aNode, sizeof(JsonNode)*nNew);
-  if( pNew==0 ){
-    pParse->oom = 1;
-    return -1;
-  }
-  pParse->nAlloc = nNew;
-  pParse->aNode = pNew;
-  assert( pParse->nNode<pParse->nAlloc );
-  return jsonParseAddNode(pParse, eType, n, zContent);
-}
-
-/*
-** Create a new JsonNode instance based on the arguments and append that
-** instance to the JsonParse.  Return the index in pParse->aNode[] of the
-** new node, or -1 if a memory allocation fails.
-*/
-static int jsonParseAddNode(
-  JsonParse *pParse,        /* Append the node to this object */
-  u32 eType,                /* Node type */
-  u32 n,                    /* Content size or sub-node count */
-  const char *zContent      /* Content */
-){
-  JsonNode *p;
-  if( pParse->nNode>=pParse->nAlloc ){
-    return jsonParseAddNodeExpand(pParse, eType, n, zContent);
-  }
-  p = &pParse->aNode[pParse->nNode];
-  p->eType = (u8)eType;
-  p->jnFlags = 0;
-  p->n = n;
-  p->u.zJContent = zContent;
-  return pParse->nNode++;
-}
-
-/*
-** Return true if z[] begins with 4 (or more) hexadecimal digits
-*/
-static int jsonIs4Hex(const char *z){
-  int i;
-  for(i=0; i<4; i++) if( !safe_isxdigit(z[i]) ) return 0;
-  return 1;
-}
-
-/*
-** Parse a single JSON value which begins at pParse->zJson[i].  Return the
-** index of the first character past the end of the value parsed.
-**
-** Return negative for a syntax error.  Special cases:  return -2 if the
-** first non-whitespace character is '}' and return -3 if the first
-** non-whitespace character is ']'.
-*/
-static int jsonParseValue(JsonParse *pParse, u32 i){
-  char c;
-  u32 j;
-  int iThis;
-  int x;
-  JsonNode *pNode;
-  const char *z = pParse->zJson;
-  while( safe_isspace(z[i]) ){ i++; }
-  if( (c = z[i])=='{' ){
-    /* Parse object */
-    iThis = jsonParseAddNode(pParse, JSON_OBJECT, 0, 0);
-    if( iThis<0 ) return -1;
-    for(j=i+1;;j++){
-      while( safe_isspace(z[j]) ){ j++; }
-      if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1;
-      x = jsonParseValue(pParse, j);
-      if( x<0 ){
-        pParse->iDepth--;
-        if( x==(-2) && pParse->nNode==(u32)iThis+1 ) return j+1;
-        return -1;
-      }
-      if( pParse->oom ) return -1;
-      pNode = &pParse->aNode[pParse->nNode-1];
-      if( pNode->eType!=JSON_STRING ) return -1;
-      pNode->jnFlags |= JNODE_LABEL;
-      j = x;
-      while( safe_isspace(z[j]) ){ j++; }
-      if( z[j]!=':' ) return -1;
-      j++;
-      x = jsonParseValue(pParse, j);
-      pParse->iDepth--;
-      if( x<0 ) return -1;
-      j = x;
-      while( safe_isspace(z[j]) ){ j++; }
-      c = z[j];
-      if( c==',' ) continue;
-      if( c!='}' ) return -1;
-      break;
-    }
-    pParse->aNode[iThis].n = pParse->nNode - (u32)iThis - 1;
-    return j+1;
-  }else if( c=='[' ){
-    /* Parse array */
-    iThis = jsonParseAddNode(pParse, JSON_ARRAY, 0, 0);
-    if( iThis<0 ) return -1;
-    for(j=i+1;;j++){
-      while( safe_isspace(z[j]) ){ j++; }
-      if( ++pParse->iDepth > JSON_MAX_DEPTH ) return -1;
-      x = jsonParseValue(pParse, j);
-      pParse->iDepth--;
-      if( x<0 ){
-        if( x==(-3) && pParse->nNode==(u32)iThis+1 ) return j+1;
-        return -1;
-      }
-      j = x;
-      while( safe_isspace(z[j]) ){ j++; }
-      c = z[j];
-      if( c==',' ) continue;
-      if( c!=']' ) return -1;
-      break;
-    }
-    pParse->aNode[iThis].n = pParse->nNode - (u32)iThis - 1;
-    return j+1;
-  }else if( c=='"' ){
-    /* Parse string */
-    u8 jnFlags = 0;
-    j = i+1;
-    for(;;){
-      c = z[j];
-      if( (c & ~0x1f)==0 ){
-        /* Control characters are not allowed in strings */
-        return -1;
-      }
-      if( c=='\\' ){
-        c = z[++j];
-        if( c=='"' || c=='\\' || c=='/' || c=='b' || c=='f'
-           || c=='n' || c=='r' || c=='t'
-           || (c=='u' && jsonIs4Hex(z+j+1)) ){
-          jnFlags = JNODE_ESCAPE;
-        }else{
-          return -1;
-        }
-      }else if( c=='"' ){
-        break;
-      }
-      j++;
-    }
-    jsonParseAddNode(pParse, JSON_STRING, j+1-i, &z[i]);
-    if( !pParse->oom ) pParse->aNode[pParse->nNode-1].jnFlags = jnFlags;
-    return j+1;
-  }else if( c=='n'
-         && strncmp(z+i,"null",4)==0
-         && !safe_isalnum(z[i+4]) ){
-    jsonParseAddNode(pParse, JSON_NULL, 0, 0);
-    return i+4;
-  }else if( c=='t'
-         && strncmp(z+i,"true",4)==0
-         && !safe_isalnum(z[i+4]) ){
-    jsonParseAddNode(pParse, JSON_TRUE, 0, 0);
-    return i+4;
-  }else if( c=='f'
-         && strncmp(z+i,"false",5)==0
-         && !safe_isalnum(z[i+5]) ){
-    jsonParseAddNode(pParse, JSON_FALSE, 0, 0);
-    return i+5;
-  }else if( c=='-' || (c>='0' && c<='9') ){
-    /* Parse number */
-    u8 seenDP = 0;
-    u8 seenE = 0;
-    assert( '-' < '0' );
-    if( c<='0' ){
-      j = c=='-' ? i+1 : i;
-      if( z[j]=='0' && z[j+1]>='0' && z[j+1]<='9' ) return -1;
-    }
-    j = i+1;
-    for(;; j++){
-      c = z[j];
-      if( c>='0' && c<='9' ) continue;
-      if( c=='.' ){
-        if( z[j-1]=='-' ) return -1;
-        if( seenDP ) return -1;
-        seenDP = 1;
-        continue;
-      }
-      if( c=='e' || c=='E' ){
-        if( z[j-1]<'0' ) return -1;
-        if( seenE ) return -1;
-        seenDP = seenE = 1;
-        c = z[j+1];
-        if( c=='+' || c=='-' ){
-          j++;
-          c = z[j+1];
-        }
-        if( c<'0' || c>'9' ) return -1;
-        continue;
-      }
-      break;
-    }
-    if( z[j-1]<'0' ) return -1;
-    jsonParseAddNode(pParse, seenDP ? JSON_REAL : JSON_INT,
-                        j - i, &z[i]);
-    return j;
-  }else if( c=='}' ){
-    return -2;  /* End of {...} */
-  }else if( c==']' ){
-    return -3;  /* End of [...] */
-  }else if( c==0 ){
-    return 0;   /* End of file */
-  }else{
-    return -1;  /* Syntax error */
-  }
-}
-
-/*
-** Parse a complete JSON string.  Return 0 on success or non-zero if there
-** are any errors.  If an error occurs, free all memory associated with
-** pParse.
-**
-** pParse is uninitialized when this routine is called.
-*/
-static int jsonParse(
-  JsonParse *pParse,           /* Initialize and fill this JsonParse object */
-  tdsqlite3_context *pCtx,       /* Report errors here */
-  const char *zJson            /* Input JSON text to be parsed */
-){
-  int i;
-  memset(pParse, 0, sizeof(*pParse));
-  if( zJson==0 ) return 1;
-  pParse->zJson = zJson;
-  i = jsonParseValue(pParse, 0);
-  if( pParse->oom ) i = -1;
-  if( i>0 ){
-    assert( pParse->iDepth==0 );
-    while( safe_isspace(zJson[i]) ) i++;
-    if( zJson[i] ) i = -1;
-  }
-  if( i<=0 ){
-    if( pCtx!=0 ){
-      if( pParse->oom ){
-        tdsqlite3_result_error_nomem(pCtx);
-      }else{
-        tdsqlite3_result_error(pCtx, "malformed JSON", -1);
-      }
-    }
-    jsonParseReset(pParse);
-    return 1;
-  }
-  return 0;
-}
-
-/* Mark node i of pParse as being a child of iParent.  Call recursively
-** to fill in all the descendants of node i.
-*/
-static void jsonParseFillInParentage(JsonParse *pParse, u32 i, u32 iParent){
-  JsonNode *pNode = &pParse->aNode[i];
-  u32 j;
-  pParse->aUp[i] = iParent;
-  switch( pNode->eType ){
-    case JSON_ARRAY: {
-      for(j=1; j<=pNode->n; j += jsonNodeSize(pNode+j)){
-        jsonParseFillInParentage(pParse, i+j, i);
-      }
-      break;
-    }
-    case JSON_OBJECT: {
-      for(j=1; j<=pNode->n; j += jsonNodeSize(pNode+j+1)+1){
-        pParse->aUp[i+j] = i;
-        jsonParseFillInParentage(pParse, i+j+1, i);
-      }
-      break;
-    }
-    default: {
-      break;
-    }
-  }
-}
-
-/*
-** Compute the parentage of all nodes in a completed parse.
-*/
-static int jsonParseFindParents(JsonParse *pParse){
-  u32 *aUp;
-  assert( pParse->aUp==0 );
-  aUp = pParse->aUp = tdsqlite3_malloc64( sizeof(u32)*pParse->nNode );
-  if( aUp==0 ){
-    pParse->oom = 1;
-    return SQLITE_NOMEM;
-  }
-  jsonParseFillInParentage(pParse, 0, 0);
-  return SQLITE_OK;
-}
-
-/*
-** Magic number used for the JSON parse cache in tdsqlite3_get_auxdata()
-*/
-#define JSON_CACHE_ID  (-429938)  /* First cache entry */
-#define JSON_CACHE_SZ  4          /* Max number of cache entries */
-
-/*
-** Obtain a complete parse of the JSON found in the first argument
-** of the argv array.  Use the tdsqlite3_get_auxdata() cache for this
-** parse if it is available.  If the cache is not available or if it
-** is no longer valid, parse the JSON again and return the new parse,
-** and also register the new parse so that it will be available for
-** future tdsqlite3_get_auxdata() calls.
-*/
-static JsonParse *jsonParseCached(
-  tdsqlite3_context *pCtx,
-  tdsqlite3_value **argv,
-  tdsqlite3_context *pErrCtx
-){
-  const char *zJson = (const char*)tdsqlite3_value_text(argv[0]);
-  int nJson = tdsqlite3_value_bytes(argv[0]);
-  JsonParse *p;
-  JsonParse *pMatch = 0;
-  int iKey;
-  int iMinKey = 0;
-  u32 iMinHold = 0xffffffff;
-  u32 iMaxHold = 0;
-  if( zJson==0 ) return 0;
-  for(iKey=0; iKey<JSON_CACHE_SZ; iKey++){
-    p = (JsonParse*)tdsqlite3_get_auxdata(pCtx, JSON_CACHE_ID+iKey);
-    if( p==0 ){
-      iMinKey = iKey;
-      break;
-    }
-    if( pMatch==0
-     && p->nJson==nJson
-     && memcmp(p->zJson,zJson,nJson)==0
-    ){
-      p->nErr = 0;
-      pMatch = p;
-    }else if( p->iHold<iMinHold ){
-      iMinHold = p->iHold;
-      iMinKey = iKey;
-    }
-    if( p->iHold>iMaxHold ){
-      iMaxHold = p->iHold;
-    }
-  }
-  if( pMatch ){
-    pMatch->nErr = 0;
-    pMatch->iHold = iMaxHold+1;
-    return pMatch;
-  }
-  p = tdsqlite3_malloc64( sizeof(*p) + nJson + 1 );
-  if( p==0 ){
-    tdsqlite3_result_error_nomem(pCtx);
-    return 0;
-  }
-  memset(p, 0, sizeof(*p));
-  p->zJson = (char*)&p[1];
-  memcpy((char*)p->zJson, zJson, nJson+1);
-  if( jsonParse(p, pErrCtx, p->zJson) ){
-    tdsqlite3_free(p);
-    return 0;
-  }
-  p->nJson = nJson;
-  p->iHold = iMaxHold+1;
-  tdsqlite3_set_auxdata(pCtx, JSON_CACHE_ID+iMinKey, p,
-                      (void(*)(void*))jsonParseFree);
-  return (JsonParse*)tdsqlite3_get_auxdata(pCtx, JSON_CACHE_ID+iMinKey);
-}
-
-/*
-** Compare the OBJECT label at pNode against zKey,nKey.  Return true on
-** a match.
-*/
-static int jsonLabelCompare(JsonNode *pNode, const char *zKey, u32 nKey){
-  if( pNode->jnFlags & JNODE_RAW ){
-    if( pNode->n!=nKey ) return 0;
-    return strncmp(pNode->u.zJContent, zKey, nKey)==0;
-  }else{
-    if( pNode->n!=nKey+2 ) return 0;
-    return strncmp(pNode->u.zJContent+1, zKey, nKey)==0;
-  }
-}
-
-/* forward declaration */
-static JsonNode *jsonLookupAppend(JsonParse*,const char*,int*,const char**);
-
-/*
-** Search along zPath to find the node specified.  Return a pointer
-** to that node, or NULL if zPath is malformed or if there is no such
-** node.
-**
-** If pApnd!=0, then try to append new nodes to complete zPath if it is
-** possible to do so and if no existing node corresponds to zPath.  If
-** new nodes are appended *pApnd is set to 1.
-*/
-static JsonNode *jsonLookupStep(
-  JsonParse *pParse,      /* The JSON to search */
-  u32 iRoot,              /* Begin the search at this node */
-  const char *zPath,      /* The path to search */
-  int *pApnd,             /* Append nodes to complete path if not NULL */
-  const char **pzErr      /* Make *pzErr point to any syntax error in zPath */
-){
-  u32 i, j, nKey;
-  const char *zKey;
-  JsonNode *pRoot = &pParse->aNode[iRoot];
-  if( zPath[0]==0 ) return pRoot;
-  if( pRoot->jnFlags & JNODE_REPLACE ) return 0;
-  if( zPath[0]=='.' ){
-    if( pRoot->eType!=JSON_OBJECT ) return 0;
-    zPath++;
-    if( zPath[0]=='"' ){
-      zKey = zPath + 1;
-      for(i=1; zPath[i] && zPath[i]!='"'; i++){}
-      nKey = i-1;
-      if( zPath[i] ){
-        i++;
-      }else{
-        *pzErr = zPath;
-        return 0;
-      }
-    }else{
-      zKey = zPath;
-      for(i=0; zPath[i] && zPath[i]!='.' && zPath[i]!='['; i++){}
-      nKey = i;
-    }
-    if( nKey==0 ){
-      *pzErr = zPath;
-      return 0;
-    }
-    j = 1;
-    for(;;){
-      while( j<=pRoot->n ){
-        if( jsonLabelCompare(pRoot+j, zKey, nKey) ){
-          return jsonLookupStep(pParse, iRoot+j+1, &zPath[i], pApnd, pzErr);
-        }
-        j++;
-        j += jsonNodeSize(&pRoot[j]);
-      }
-      if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break;
-      iRoot += pRoot->u.iAppend;
-      pRoot = &pParse->aNode[iRoot];
-      j = 1;
-    }
-    if( pApnd ){
-      u32 iStart, iLabel;
-      JsonNode *pNode;
-      iStart = jsonParseAddNode(pParse, JSON_OBJECT, 2, 0);
-      iLabel = jsonParseAddNode(pParse, JSON_STRING, nKey, zKey);
-      zPath += i;
-      pNode = jsonLookupAppend(pParse, zPath, pApnd, pzErr);
-      if( pParse->oom ) return 0;
-      if( pNode ){
-        pRoot = &pParse->aNode[iRoot];
-        pRoot->u.iAppend = iStart - iRoot;
-        pRoot->jnFlags |= JNODE_APPEND;
-        pParse->aNode[iLabel].jnFlags |= JNODE_RAW;
-      }
-      return pNode;
-    }
-  }else if( zPath[0]=='[' ){
-    i = 0;
-    j = 1;
-    while( safe_isdigit(zPath[j]) ){
-      i = i*10 + zPath[j] - '0';
-      j++;
-    }
-    if( j<2 || zPath[j]!=']' ){
-      if( zPath[1]=='#' ){
-        JsonNode *pBase = pRoot;
-        int iBase = iRoot;
-        if( pRoot->eType!=JSON_ARRAY ) return 0;
-        for(;;){
-          while( j<=pBase->n ){
-            if( (pBase[j].jnFlags & JNODE_REMOVE)==0 ) i++;
-            j += jsonNodeSize(&pBase[j]);
-          }
-          if( (pBase->jnFlags & JNODE_APPEND)==0 ) break;
-          iBase += pBase->u.iAppend;
-          pBase = &pParse->aNode[iBase];
-          j = 1;
-        }
-        j = 2;
-        if( zPath[2]=='-' && safe_isdigit(zPath[3]) ){
-          unsigned int x = 0;
-          j = 3;
-          do{
-            x = x*10 + zPath[j] - '0';
-            j++;
-          }while( safe_isdigit(zPath[j]) );
-          if( x>i ) return 0;
-          i -= x;
-        }
-        if( zPath[j]!=']' ){
-          *pzErr = zPath;
-          return 0;
-        }
-      }else{
-        *pzErr = zPath;
-        return 0;
-      }
-    }
-    if( pRoot->eType!=JSON_ARRAY ) return 0;
-    zPath += j + 1;
-    j = 1;
-    for(;;){
-      while( j<=pRoot->n && (i>0 || (pRoot[j].jnFlags & JNODE_REMOVE)!=0) ){
-        if( (pRoot[j].jnFlags & JNODE_REMOVE)==0 ) i--;
-        j += jsonNodeSize(&pRoot[j]);
-      }
-      if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break;
-      iRoot += pRoot->u.iAppend;
-      pRoot = &pParse->aNode[iRoot];
-      j = 1;
-    }
-    if( j<=pRoot->n ){
-      return jsonLookupStep(pParse, iRoot+j, zPath, pApnd, pzErr);
-    }
-    if( i==0 && pApnd ){
-      u32 iStart;
-      JsonNode *pNode;
-      iStart = jsonParseAddNode(pParse, JSON_ARRAY, 1, 0);
-      pNode = jsonLookupAppend(pParse, zPath, pApnd, pzErr);
-      if( pParse->oom ) return 0;
-      if( pNode ){
-        pRoot = &pParse->aNode[iRoot];
-        pRoot->u.iAppend = iStart - iRoot;
-        pRoot->jnFlags |= JNODE_APPEND;
-      }
-      return pNode;
-    }
-  }else{
-    *pzErr = zPath;
-  }
-  return 0;
-}
-
-/*
-** Append content to pParse that will complete zPath.  Return a pointer
-** to the inserted node, or return NULL if the append fails.
-*/
-static JsonNode *jsonLookupAppend(
-  JsonParse *pParse,     /* Append content to the JSON parse */
-  const char *zPath,     /* Description of content to append */
-  int *pApnd,            /* Set this flag to 1 */
-  const char **pzErr     /* Make this point to any syntax error */
-){
-  *pApnd = 1;
-  if( zPath[0]==0 ){
-    jsonParseAddNode(pParse, JSON_NULL, 0, 0);
-    return pParse->oom ? 0 : &pParse->aNode[pParse->nNode-1];
-  }
-  if( zPath[0]=='.' ){
-    jsonParseAddNode(pParse, JSON_OBJECT, 0, 0);
-  }else if( strncmp(zPath,"[0]",3)==0 ){
-    jsonParseAddNode(pParse, JSON_ARRAY, 0, 0);
-  }else{
-    return 0;
-  }
-  if( pParse->oom ) return 0;
-  return jsonLookupStep(pParse, pParse->nNode-1, zPath, pApnd, pzErr);
-}
-
-/*
-** Return the text of a syntax error message on a JSON path.  Space is
-** obtained from tdsqlite3_malloc().
-*/
-static char *jsonPathSyntaxError(const char *zErr){
-  return tdsqlite3_mprintf("JSON path error near '%q'", zErr);
-}
-
-/*
-** Do a node lookup using zPath.  Return a pointer to the node on success.
-** Return NULL if not found or if there is an error.
-**
-** On an error, write an error message into pCtx and increment the
-** pParse->nErr counter.
-**
-** If pApnd!=NULL then try to append missing nodes and set *pApnd = 1 if
-** nodes are appended.
-*/
-static JsonNode *jsonLookup(
-  JsonParse *pParse,      /* The JSON to search */
-  const char *zPath,      /* The path to search */
-  int *pApnd,             /* Append nodes to complete path if not NULL */
-  tdsqlite3_context *pCtx   /* Report errors here, if not NULL */
-){
-  const char *zErr = 0;
-  JsonNode *pNode = 0;
-  char *zMsg;
-
-  if( zPath==0 ) return 0;
-  if( zPath[0]!='$' ){
-    zErr = zPath;
-    goto lookup_err;
-  }
-  zPath++;
-  pNode = jsonLookupStep(pParse, 0, zPath, pApnd, &zErr);
-  if( zErr==0 ) return pNode;
-
-lookup_err:
-  pParse->nErr++;
-  assert( zErr!=0 && pCtx!=0 );
-  zMsg = jsonPathSyntaxError(zErr);
-  if( zMsg ){
-    tdsqlite3_result_error(pCtx, zMsg, -1);
-    tdsqlite3_free(zMsg);
-  }else{
-    tdsqlite3_result_error_nomem(pCtx);
-  }
-  return 0;
-}
-
-
-/*
-** Report the wrong number of arguments for json_insert(), json_replace()
-** or json_set().
-*/
-static void jsonWrongNumArgs(
-  tdsqlite3_context *pCtx,
-  const char *zFuncName
-){
-  char *zMsg = tdsqlite3_mprintf("json_%s() needs an odd number of arguments",
-                               zFuncName);
-  tdsqlite3_result_error(pCtx, zMsg, -1);
-  tdsqlite3_free(zMsg);     
-}
-
-/*
-** Mark all NULL entries in the Object passed in as JNODE_REMOVE.
-*/
-static void jsonRemoveAllNulls(JsonNode *pNode){
-  int i, n;
-  assert( pNode->eType==JSON_OBJECT );
-  n = pNode->n;
-  for(i=2; i<=n; i += jsonNodeSize(&pNode[i])+1){
-    switch( pNode[i].eType ){
-      case JSON_NULL:
-        pNode[i].jnFlags |= JNODE_REMOVE;
-        break;
-      case JSON_OBJECT:
-        jsonRemoveAllNulls(&pNode[i]);
-        break;
-    }
-  }
-}
-
-
-/****************************************************************************
-** SQL functions used for testing and debugging
-****************************************************************************/
-
-#ifdef SQLITE_DEBUG
-/*
-** The json_parse(JSON) function returns a string which describes
-** a parse of the JSON provided.  Or it returns NULL if JSON is not
-** well-formed.
-*/
-static void jsonParseFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonString s;       /* Output string - not real JSON */
-  JsonParse x;        /* The parse */
-  u32 i;
-
-  assert( argc==1 );
-  if( jsonParse(&x, ctx, (const char*)tdsqlite3_value_text(argv[0])) ) return;
-  jsonParseFindParents(&x);
-  jsonInit(&s, ctx);
-  for(i=0; i<x.nNode; i++){
-    const char *zType;
-    if( x.aNode[i].jnFlags & JNODE_LABEL ){
-      assert( x.aNode[i].eType==JSON_STRING );
-      zType = "label";
-    }else{
-      zType = jsonType[x.aNode[i].eType];
-    }
-    jsonPrintf(100, &s,"node %3u: %7s n=%-4d up=%-4d",
-               i, zType, x.aNode[i].n, x.aUp[i]);
-    if( x.aNode[i].u.zJContent!=0 ){
-      jsonAppendRaw(&s, " ", 1);
-      jsonAppendRaw(&s, x.aNode[i].u.zJContent, x.aNode[i].n);
-    }
-    jsonAppendRaw(&s, "\n", 1);
-  }
-  jsonParseReset(&x);
-  jsonResult(&s);
-}
-
-/*
-** The json_test1(JSON) function return true (1) if the input is JSON
-** text generated by another json function.  It returns (0) if the input
-** is not known to be JSON.
-*/
-static void jsonTest1Func(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  UNUSED_PARAM(argc);
-  tdsqlite3_result_int(ctx, tdsqlite3_value_subtype(argv[0])==JSON_SUBTYPE);
-}
-#endif /* SQLITE_DEBUG */
-
-/****************************************************************************
-** Scalar SQL function implementations
-****************************************************************************/
-
-/*
-** Implementation of the json_QUOTE(VALUE) function.  Return a JSON value
-** corresponding to the SQL value input.  Mostly this means putting 
-** double-quotes around strings and returning the unquoted string "null"
-** when given a NULL input.
-*/
-static void jsonQuoteFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonString jx;
-  UNUSED_PARAM(argc);
-
-  jsonInit(&jx, ctx);
-  jsonAppendValue(&jx, argv[0]);
-  jsonResult(&jx);
-  tdsqlite3_result_subtype(ctx, JSON_SUBTYPE);
-}
-
-/*
-** Implementation of the json_array(VALUE,...) function.  Return a JSON
-** array that contains all values given in arguments.  Or if any argument
-** is a BLOB, throw an error.
-*/
-static void jsonArrayFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  int i;
-  JsonString jx;
-
-  jsonInit(&jx, ctx);
-  jsonAppendChar(&jx, '[');
-  for(i=0; i<argc; i++){
-    jsonAppendSeparator(&jx);
-    jsonAppendValue(&jx, argv[i]);
-  }
-  jsonAppendChar(&jx, ']');
-  jsonResult(&jx);
-  tdsqlite3_result_subtype(ctx, JSON_SUBTYPE);
-}
-
-
-/*
-** json_array_length(JSON)
-** json_array_length(JSON, PATH)
-**
-** Return the number of elements in the top-level JSON array.  
-** Return 0 if the input is not a well-formed JSON array.
-*/
-static void jsonArrayLengthFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonParse *p;          /* The parse */
-  tdsqlite3_int64 n = 0;
-  u32 i;
-  JsonNode *pNode;
-
-  p = jsonParseCached(ctx, argv, ctx);
-  if( p==0 ) return;
-  assert( p->nNode );
-  if( argc==2 ){
-    const char *zPath = (const char*)tdsqlite3_value_text(argv[1]);
-    pNode = jsonLookup(p, zPath, 0, ctx);
-  }else{
-    pNode = p->aNode;
-  }
-  if( pNode==0 ){
-    return;
-  }
-  if( pNode->eType==JSON_ARRAY ){
-    assert( (pNode->jnFlags & JNODE_APPEND)==0 );
-    for(i=1; i<=pNode->n; n++){
-      i += jsonNodeSize(&pNode[i]);
-    }
-  }
-  tdsqlite3_result_int64(ctx, n);
-}
-
-/*
-** json_extract(JSON, PATH, ...)
-**
-** Return the element described by PATH.  Return NULL if there is no
-** PATH element.  If there are multiple PATHs, then return a JSON array
-** with the result from each path.  Throw an error if the JSON or any PATH
-** is malformed.
-*/
-static void jsonExtractFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonParse *p;          /* The parse */
-  JsonNode *pNode;
-  const char *zPath;
-  JsonString jx;
-  int i;
-
-  if( argc<2 ) return;
-  p = jsonParseCached(ctx, argv, ctx);
-  if( p==0 ) return;
-  jsonInit(&jx, ctx);
-  jsonAppendChar(&jx, '[');
-  for(i=1; i<argc; i++){
-    zPath = (const char*)tdsqlite3_value_text(argv[i]);
-    pNode = jsonLookup(p, zPath, 0, ctx);
-    if( p->nErr ) break;
-    if( argc>2 ){
-      jsonAppendSeparator(&jx);
-      if( pNode ){
-        jsonRenderNode(pNode, &jx, 0);
-      }else{
-        jsonAppendRaw(&jx, "null", 4);
-      }
-    }else if( pNode ){
-      jsonReturn(pNode, ctx, 0);
-    }
-  }
-  if( argc>2 && i==argc ){
-    jsonAppendChar(&jx, ']');
-    jsonResult(&jx);
-    tdsqlite3_result_subtype(ctx, JSON_SUBTYPE);
-  }
-  jsonReset(&jx);
-}
-
-/* This is the RFC 7396 MergePatch algorithm.
-*/
-static JsonNode *jsonMergePatch(
-  JsonParse *pParse,   /* The JSON parser that contains the TARGET */
-  u32 iTarget,         /* Node of the TARGET in pParse */
-  JsonNode *pPatch     /* The PATCH */
-){
-  u32 i, j;
-  u32 iRoot;
-  JsonNode *pTarget;
-  if( pPatch->eType!=JSON_OBJECT ){
-    return pPatch;
-  }
-  assert( iTarget>=0 && iTarget<pParse->nNode );
-  pTarget = &pParse->aNode[iTarget];
-  assert( (pPatch->jnFlags & JNODE_APPEND)==0 );
-  if( pTarget->eType!=JSON_OBJECT ){
-    jsonRemoveAllNulls(pPatch);
-    return pPatch;
-  }
-  iRoot = iTarget;
-  for(i=1; i<pPatch->n; i += jsonNodeSize(&pPatch[i+1])+1){
-    u32 nKey;
-    const char *zKey;
-    assert( pPatch[i].eType==JSON_STRING );
-    assert( pPatch[i].jnFlags & JNODE_LABEL );
-    nKey = pPatch[i].n;
-    zKey = pPatch[i].u.zJContent;
-    assert( (pPatch[i].jnFlags & JNODE_RAW)==0 );
-    for(j=1; j<pTarget->n; j += jsonNodeSize(&pTarget[j+1])+1 ){
-      assert( pTarget[j].eType==JSON_STRING );
-      assert( pTarget[j].jnFlags & JNODE_LABEL );
-      assert( (pPatch[i].jnFlags & JNODE_RAW)==0 );
-      if( pTarget[j].n==nKey && strncmp(pTarget[j].u.zJContent,zKey,nKey)==0 ){
-        if( pTarget[j+1].jnFlags & (JNODE_REMOVE|JNODE_PATCH) ) break;
-        if( pPatch[i+1].eType==JSON_NULL ){
-          pTarget[j+1].jnFlags |= JNODE_REMOVE;
-        }else{
-          JsonNode *pNew = jsonMergePatch(pParse, iTarget+j+1, &pPatch[i+1]);
-          if( pNew==0 ) return 0;
-          pTarget = &pParse->aNode[iTarget];
-          if( pNew!=&pTarget[j+1] ){
-            pTarget[j+1].u.pPatch = pNew;
-            pTarget[j+1].jnFlags |= JNODE_PATCH;
-          }
-        }
-        break;
-      }
-    }
-    if( j>=pTarget->n && pPatch[i+1].eType!=JSON_NULL ){
-      int iStart, iPatch;
-      iStart = jsonParseAddNode(pParse, JSON_OBJECT, 2, 0);
-      jsonParseAddNode(pParse, JSON_STRING, nKey, zKey);
-      iPatch = jsonParseAddNode(pParse, JSON_TRUE, 0, 0);
-      if( pParse->oom ) return 0;
-      jsonRemoveAllNulls(pPatch);
-      pTarget = &pParse->aNode[iTarget];
-      pParse->aNode[iRoot].jnFlags |= JNODE_APPEND;
-      pParse->aNode[iRoot].u.iAppend = iStart - iRoot;
-      iRoot = iStart;
-      pParse->aNode[iPatch].jnFlags |= JNODE_PATCH;
-      pParse->aNode[iPatch].u.pPatch = &pPatch[i+1];
-    }
-  }
-  return pTarget;
-}
-
-/*
-** Implementation of the json_mergepatch(JSON1,JSON2) function.  Return a JSON
-** object that is the result of running the RFC 7396 MergePatch() algorithm
-** on the two arguments.
-*/
-static void jsonPatchFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonParse x;     /* The JSON that is being patched */
-  JsonParse y;     /* The patch */
-  JsonNode *pResult;   /* The result of the merge */
-
-  UNUSED_PARAM(argc);
-  if( jsonParse(&x, ctx, (const char*)tdsqlite3_value_text(argv[0])) ) return;
-  if( jsonParse(&y, ctx, (const char*)tdsqlite3_value_text(argv[1])) ){
-    jsonParseReset(&x);
-    return;
-  }
-  pResult = jsonMergePatch(&x, 0, y.aNode);
-  assert( pResult!=0 || x.oom );
-  if( pResult ){
-    jsonReturnJson(pResult, ctx, 0);
-  }else{
-    tdsqlite3_result_error_nomem(ctx);
-  }
-  jsonParseReset(&x);
-  jsonParseReset(&y);
-}
-
-
-/*
-** Implementation of the json_object(NAME,VALUE,...) function.  Return a JSON
-** object that contains all name/value given in arguments.  Or if any name
-** is not a string or if any value is a BLOB, throw an error.
-*/
-static void jsonObjectFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  int i;
-  JsonString jx;
-  const char *z;
-  u32 n;
-
-  if( argc&1 ){
-    tdsqlite3_result_error(ctx, "json_object() requires an even number "
-                                  "of arguments", -1);
-    return;
-  }
-  jsonInit(&jx, ctx);
-  jsonAppendChar(&jx, '{');
-  for(i=0; i<argc; i+=2){
-    if( tdsqlite3_value_type(argv[i])!=SQLITE_TEXT ){
-      tdsqlite3_result_error(ctx, "json_object() labels must be TEXT", -1);
-      jsonReset(&jx);
-      return;
-    }
-    jsonAppendSeparator(&jx);
-    z = (const char*)tdsqlite3_value_text(argv[i]);
-    n = (u32)tdsqlite3_value_bytes(argv[i]);
-    jsonAppendString(&jx, z, n);
-    jsonAppendChar(&jx, ':');
-    jsonAppendValue(&jx, argv[i+1]);
-  }
-  jsonAppendChar(&jx, '}');
-  jsonResult(&jx);
-  tdsqlite3_result_subtype(ctx, JSON_SUBTYPE);
-}
-
-
-/*
-** json_remove(JSON, PATH, ...)
-**
-** Remove the named elements from JSON and return the result.  malformed
-** JSON or PATH arguments result in an error.
-*/
-static void jsonRemoveFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonParse x;          /* The parse */
-  JsonNode *pNode;
-  const char *zPath;
-  u32 i;
-
-  if( argc<1 ) return;
-  if( jsonParse(&x, ctx, (const char*)tdsqlite3_value_text(argv[0])) ) return;
-  assert( x.nNode );
-  for(i=1; i<(u32)argc; i++){
-    zPath = (const char*)tdsqlite3_value_text(argv[i]);
-    if( zPath==0 ) goto remove_done;
-    pNode = jsonLookup(&x, zPath, 0, ctx);
-    if( x.nErr ) goto remove_done;
-    if( pNode ) pNode->jnFlags |= JNODE_REMOVE;
-  }
-  if( (x.aNode[0].jnFlags & JNODE_REMOVE)==0 ){
-    jsonReturnJson(x.aNode, ctx, 0);
-  }
-remove_done:
-  jsonParseReset(&x);
-}
-
-/*
-** json_replace(JSON, PATH, VALUE, ...)
-**
-** Replace the value at PATH with VALUE.  If PATH does not already exist,
-** this routine is a no-op.  If JSON or PATH is malformed, throw an error.
-*/
-static void jsonReplaceFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonParse x;          /* The parse */
-  JsonNode *pNode;
-  const char *zPath;
-  u32 i;
-
-  if( argc<1 ) return;
-  if( (argc&1)==0 ) {
-    jsonWrongNumArgs(ctx, "replace");
-    return;
-  }
-  if( jsonParse(&x, ctx, (const char*)tdsqlite3_value_text(argv[0])) ) return;
-  assert( x.nNode );
-  for(i=1; i<(u32)argc; i+=2){
-    zPath = (const char*)tdsqlite3_value_text(argv[i]);
-    pNode = jsonLookup(&x, zPath, 0, ctx);
-    if( x.nErr ) goto replace_err;
-    if( pNode ){
-      pNode->jnFlags |= (u8)JNODE_REPLACE;
-      pNode->u.iReplace = i + 1;
-    }
-  }
-  if( x.aNode[0].jnFlags & JNODE_REPLACE ){
-    tdsqlite3_result_value(ctx, argv[x.aNode[0].u.iReplace]);
-  }else{
-    jsonReturnJson(x.aNode, ctx, argv);
-  }
-replace_err:
-  jsonParseReset(&x);
-}
-
-/*
-** json_set(JSON, PATH, VALUE, ...)
-**
-** Set the value at PATH to VALUE.  Create the PATH if it does not already
-** exist.  Overwrite existing values that do exist.
-** If JSON or PATH is malformed, throw an error.
-**
-** json_insert(JSON, PATH, VALUE, ...)
-**
-** Create PATH and initialize it to VALUE.  If PATH already exists, this
-** routine is a no-op.  If JSON or PATH is malformed, throw an error.
-*/
-static void jsonSetFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonParse x;          /* The parse */
-  JsonNode *pNode;
-  const char *zPath;
-  u32 i;
-  int bApnd;
-  int bIsSet = *(int*)tdsqlite3_user_data(ctx);
-
-  if( argc<1 ) return;
-  if( (argc&1)==0 ) {
-    jsonWrongNumArgs(ctx, bIsSet ? "set" : "insert");
-    return;
-  }
-  if( jsonParse(&x, ctx, (const char*)tdsqlite3_value_text(argv[0])) ) return;
-  assert( x.nNode );
-  for(i=1; i<(u32)argc; i+=2){
-    zPath = (const char*)tdsqlite3_value_text(argv[i]);
-    bApnd = 0;
-    pNode = jsonLookup(&x, zPath, &bApnd, ctx);
-    if( x.oom ){
-      tdsqlite3_result_error_nomem(ctx);
-      goto jsonSetDone;
-    }else if( x.nErr ){
-      goto jsonSetDone;
-    }else if( pNode && (bApnd || bIsSet) ){
-      pNode->jnFlags |= (u8)JNODE_REPLACE;
-      pNode->u.iReplace = i + 1;
-    }
-  }
-  if( x.aNode[0].jnFlags & JNODE_REPLACE ){
-    tdsqlite3_result_value(ctx, argv[x.aNode[0].u.iReplace]);
-  }else{
-    jsonReturnJson(x.aNode, ctx, argv);
-  }
-jsonSetDone:
-  jsonParseReset(&x);
-}
-
-/*
-** json_type(JSON)
-** json_type(JSON, PATH)
-**
-** Return the top-level "type" of a JSON string.  Throw an error if
-** either the JSON or PATH inputs are not well-formed.
-*/
-static void jsonTypeFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonParse *p;          /* The parse */
-  const char *zPath;
-  JsonNode *pNode;
-
-  p = jsonParseCached(ctx, argv, ctx);
-  if( p==0 ) return;
-  if( argc==2 ){
-    zPath = (const char*)tdsqlite3_value_text(argv[1]);
-    pNode = jsonLookup(p, zPath, 0, ctx);
-  }else{
-    pNode = p->aNode;
-  }
-  if( pNode ){
-    tdsqlite3_result_text(ctx, jsonType[pNode->eType], -1, SQLITE_STATIC);
-  }
-}
-
-/*
-** json_valid(JSON)
-**
-** Return 1 if JSON is a well-formed JSON string according to RFC-7159.
-** Return 0 otherwise.
-*/
-static void jsonValidFunc(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonParse *p;          /* The parse */
-  UNUSED_PARAM(argc);
-  p = jsonParseCached(ctx, argv, 0);
-  tdsqlite3_result_int(ctx, p!=0);
-}
-
-
-/****************************************************************************
-** Aggregate SQL function implementations
-****************************************************************************/
-/*
-** json_group_array(VALUE)
-**
-** Return a JSON array composed of all values in the aggregate.
-*/
-static void jsonArrayStep(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonString *pStr;
-  UNUSED_PARAM(argc);
-  pStr = (JsonString*)tdsqlite3_aggregate_context(ctx, sizeof(*pStr));
-  if( pStr ){
-    if( pStr->zBuf==0 ){
-      jsonInit(pStr, ctx);
-      jsonAppendChar(pStr, '[');
-    }else if( pStr->nUsed>1 ){
-      jsonAppendChar(pStr, ',');
-      pStr->pCtx = ctx;
-    }
-    jsonAppendValue(pStr, argv[0]);
-  }
-}
-static void jsonArrayCompute(tdsqlite3_context *ctx, int isFinal){
-  JsonString *pStr;
-  pStr = (JsonString*)tdsqlite3_aggregate_context(ctx, 0);
-  if( pStr ){
-    pStr->pCtx = ctx;
-    jsonAppendChar(pStr, ']');
-    if( pStr->bErr ){
-      if( pStr->bErr==1 ) tdsqlite3_result_error_nomem(ctx);
-      assert( pStr->bStatic );
-    }else if( isFinal ){
-      tdsqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed,
-                          pStr->bStatic ? SQLITE_TRANSIENT : tdsqlite3_free);
-      pStr->bStatic = 1;
-    }else{
-      tdsqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT);
-      pStr->nUsed--;
-    }
-  }else{
-    tdsqlite3_result_text(ctx, "[]", 2, SQLITE_STATIC);
-  }
-  tdsqlite3_result_subtype(ctx, JSON_SUBTYPE);
-}
-static void jsonArrayValue(tdsqlite3_context *ctx){
-  jsonArrayCompute(ctx, 0);
-}
-static void jsonArrayFinal(tdsqlite3_context *ctx){
-  jsonArrayCompute(ctx, 1);
-}
-
-#ifndef SQLITE_OMIT_WINDOWFUNC
-/*
-** This method works for both json_group_array() and json_group_object().
-** It works by removing the first element of the group by searching forward
-** to the first comma (",") that is not within a string and deleting all
-** text through that comma.
-*/
-static void jsonGroupInverse(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  unsigned int i;
-  int inStr = 0;
-  int nNest = 0;
-  char *z;
-  char c;
-  JsonString *pStr;
-  UNUSED_PARAM(argc);
-  UNUSED_PARAM(argv);
-  pStr = (JsonString*)tdsqlite3_aggregate_context(ctx, 0);
-#ifdef NEVER
-  /* pStr is always non-NULL since jsonArrayStep() or jsonObjectStep() will
-  ** always have been called to initalize it */
-  if( NEVER(!pStr) ) return;
-#endif
-  z = pStr->zBuf;
-  for(i=1; (c = z[i])!=',' || inStr || nNest; i++){
-    if( i>=pStr->nUsed ){
-      pStr->nUsed = 1;
-      return;
-    }
-    if( c=='"' ){
-      inStr = !inStr;
-    }else if( c=='\\' ){
-      i++;
-    }else if( !inStr ){
-      if( c=='{' || c=='[' ) nNest++;
-      if( c=='}' || c==']' ) nNest--;
-    }
-  }
-  pStr->nUsed -= i;      
-  memmove(&z[1], &z[i+1], (size_t)pStr->nUsed-1);
-}
-#else
-# define jsonGroupInverse 0
-#endif
-
-
-/*
-** json_group_obj(NAME,VALUE)
-**
-** Return a JSON object composed of all names and values in the aggregate.
-*/
-static void jsonObjectStep(
-  tdsqlite3_context *ctx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  JsonString *pStr;
-  const char *z;
-  u32 n;
-  UNUSED_PARAM(argc);
-  pStr = (JsonString*)tdsqlite3_aggregate_context(ctx, sizeof(*pStr));
-  if( pStr ){
-    if( pStr->zBuf==0 ){
-      jsonInit(pStr, ctx);
-      jsonAppendChar(pStr, '{');
-    }else if( pStr->nUsed>1 ){
-      jsonAppendChar(pStr, ',');
-      pStr->pCtx = ctx;
-    }
-    z = (const char*)tdsqlite3_value_text(argv[0]);
-    n = (u32)tdsqlite3_value_bytes(argv[0]);
-    jsonAppendString(pStr, z, n);
-    jsonAppendChar(pStr, ':');
-    jsonAppendValue(pStr, argv[1]);
-  }
-}
-static void jsonObjectCompute(tdsqlite3_context *ctx, int isFinal){
-  JsonString *pStr;
-  pStr = (JsonString*)tdsqlite3_aggregate_context(ctx, 0);
-  if( pStr ){
-    jsonAppendChar(pStr, '}');
-    if( pStr->bErr ){
-      if( pStr->bErr==1 ) tdsqlite3_result_error_nomem(ctx);
-      assert( pStr->bStatic );
-    }else if( isFinal ){
-      tdsqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed,
-                          pStr->bStatic ? SQLITE_TRANSIENT : tdsqlite3_free);
-      pStr->bStatic = 1;
-    }else{
-      tdsqlite3_result_text(ctx, pStr->zBuf, (int)pStr->nUsed, SQLITE_TRANSIENT);
-      pStr->nUsed--;
-    }
-  }else{
-    tdsqlite3_result_text(ctx, "{}", 2, SQLITE_STATIC);
-  }
-  tdsqlite3_result_subtype(ctx, JSON_SUBTYPE);
-}
-static void jsonObjectValue(tdsqlite3_context *ctx){
-  jsonObjectCompute(ctx, 0);
-}
-static void jsonObjectFinal(tdsqlite3_context *ctx){
-  jsonObjectCompute(ctx, 1);
-}
-
-
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-/****************************************************************************
-** The json_each virtual table
-****************************************************************************/
-typedef struct JsonEachCursor JsonEachCursor;
-struct JsonEachCursor {
-  tdsqlite3_vtab_cursor base;  /* Base class - must be first */
-  u32 iRowid;                /* The rowid */
-  u32 iBegin;                /* The first node of the scan */
-  u32 i;                     /* Index in sParse.aNode[] of current row */
-  u32 iEnd;                  /* EOF when i equals or exceeds this value */
-  u8 eType;                  /* Type of top-level element */
-  u8 bRecursive;             /* True for json_tree().  False for json_each() */
-  char *zJson;               /* Input JSON */
-  char *zRoot;               /* Path by which to filter zJson */
-  JsonParse sParse;          /* Parse of the input JSON */
-};
-
-/* Constructor for the json_each virtual table */
-static int jsonEachConnect(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  tdsqlite3_vtab *pNew;
-  int rc;
-
-/* Column numbers */
-#define JEACH_KEY     0
-#define JEACH_VALUE   1
-#define JEACH_TYPE    2
-#define JEACH_ATOM    3
-#define JEACH_ID      4
-#define JEACH_PARENT  5
-#define JEACH_FULLKEY 6
-#define JEACH_PATH    7
-/* The xBestIndex method assumes that the JSON and ROOT columns are
-** the last two columns in the table.  Should this ever changes, be
-** sure to update the xBestIndex method. */
-#define JEACH_JSON    8
-#define JEACH_ROOT    9
-
-  UNUSED_PARAM(pzErr);
-  UNUSED_PARAM(argv);
-  UNUSED_PARAM(argc);
-  UNUSED_PARAM(pAux);
-  rc = tdsqlite3_declare_vtab(db, 
-     "CREATE TABLE x(key,value,type,atom,id,parent,fullkey,path,"
-                    "json HIDDEN,root HIDDEN)");
-  if( rc==SQLITE_OK ){
-    pNew = *ppVtab = tdsqlite3_malloc( sizeof(*pNew) );
-    if( pNew==0 ) return SQLITE_NOMEM;
-    memset(pNew, 0, sizeof(*pNew));
-    tdsqlite3_vtab_config(db, SQLITE_VTAB_INNOCUOUS);
-  }
-  return rc;
-}
-
-/* destructor for json_each virtual table */
-static int jsonEachDisconnect(tdsqlite3_vtab *pVtab){
-  tdsqlite3_free(pVtab);
-  return SQLITE_OK;
-}
-
-/* constructor for a JsonEachCursor object for json_each(). */
-static int jsonEachOpenEach(tdsqlite3_vtab *p, tdsqlite3_vtab_cursor **ppCursor){
-  JsonEachCursor *pCur;
-
-  UNUSED_PARAM(p);
-  pCur = tdsqlite3_malloc( sizeof(*pCur) );
-  if( pCur==0 ) return SQLITE_NOMEM;
-  memset(pCur, 0, sizeof(*pCur));
-  *ppCursor = &pCur->base;
-  return SQLITE_OK;
-}
-
-/* constructor for a JsonEachCursor object for json_tree(). */
-static int jsonEachOpenTree(tdsqlite3_vtab *p, tdsqlite3_vtab_cursor **ppCursor){
-  int rc = jsonEachOpenEach(p, ppCursor);
-  if( rc==SQLITE_OK ){
-    JsonEachCursor *pCur = (JsonEachCursor*)*ppCursor;
-    pCur->bRecursive = 1;
-  }
-  return rc;
-}
-
-/* Reset a JsonEachCursor back to its original state.  Free any memory
-** held. */
-static void jsonEachCursorReset(JsonEachCursor *p){
-  tdsqlite3_free(p->zJson);
-  tdsqlite3_free(p->zRoot);
-  jsonParseReset(&p->sParse);
-  p->iRowid = 0;
-  p->i = 0;
-  p->iEnd = 0;
-  p->eType = 0;
-  p->zJson = 0;
-  p->zRoot = 0;
-}
-
-/* Destructor for a jsonEachCursor object */
-static int jsonEachClose(tdsqlite3_vtab_cursor *cur){
-  JsonEachCursor *p = (JsonEachCursor*)cur;
-  jsonEachCursorReset(p);
-  tdsqlite3_free(cur);
-  return SQLITE_OK;
-}
-
-/* Return TRUE if the jsonEachCursor object has been advanced off the end
-** of the JSON object */
-static int jsonEachEof(tdsqlite3_vtab_cursor *cur){
-  JsonEachCursor *p = (JsonEachCursor*)cur;
-  return p->i >= p->iEnd;
-}
-
-/* Advance the cursor to the next element for json_tree() */
-static int jsonEachNext(tdsqlite3_vtab_cursor *cur){
-  JsonEachCursor *p = (JsonEachCursor*)cur;
-  if( p->bRecursive ){
-    if( p->sParse.aNode[p->i].jnFlags & JNODE_LABEL ) p->i++;
-    p->i++;
-    p->iRowid++;
-    if( p->i<p->iEnd ){
-      u32 iUp = p->sParse.aUp[p->i];
-      JsonNode *pUp = &p->sParse.aNode[iUp];
-      p->eType = pUp->eType;
-      if( pUp->eType==JSON_ARRAY ){
-        if( iUp==p->i-1 ){
-          pUp->u.iKey = 0;
-        }else{
-          pUp->u.iKey++;
-        }
-      }
-    }
-  }else{
-    switch( p->eType ){
-      case JSON_ARRAY: {
-        p->i += jsonNodeSize(&p->sParse.aNode[p->i]);
-        p->iRowid++;
-        break;
-      }
-      case JSON_OBJECT: {
-        p->i += 1 + jsonNodeSize(&p->sParse.aNode[p->i+1]);
-        p->iRowid++;
-        break;
-      }
-      default: {
-        p->i = p->iEnd;
-        break;
-      }
-    }
-  }
-  return SQLITE_OK;
-}
-
-/* Append the name of the path for element i to pStr
-*/
-static void jsonEachComputePath(
-  JsonEachCursor *p,       /* The cursor */
-  JsonString *pStr,        /* Write the path here */
-  u32 i                    /* Path to this element */
-){
-  JsonNode *pNode, *pUp;
-  u32 iUp;
-  if( i==0 ){
-    jsonAppendChar(pStr, '$');
-    return;
-  }
-  iUp = p->sParse.aUp[i];
-  jsonEachComputePath(p, pStr, iUp);
-  pNode = &p->sParse.aNode[i];
-  pUp = &p->sParse.aNode[iUp];
-  if( pUp->eType==JSON_ARRAY ){
-    jsonPrintf(30, pStr, "[%d]", pUp->u.iKey);
-  }else{
-    assert( pUp->eType==JSON_OBJECT );
-    if( (pNode->jnFlags & JNODE_LABEL)==0 ) pNode--;
-    assert( pNode->eType==JSON_STRING );
-    assert( pNode->jnFlags & JNODE_LABEL );
-    jsonPrintf(pNode->n+1, pStr, ".%.*s", pNode->n-2, pNode->u.zJContent+1);
-  }
-}
-
-/* Return the value of a column */
-static int jsonEachColumn(
-  tdsqlite3_vtab_cursor *cur,   /* The cursor */
-  tdsqlite3_context *ctx,       /* First argument to tdsqlite3_result_...() */
-  int i                       /* Which column to return */
-){
-  JsonEachCursor *p = (JsonEachCursor*)cur;
-  JsonNode *pThis = &p->sParse.aNode[p->i];
-  switch( i ){
-    case JEACH_KEY: {
-      if( p->i==0 ) break;
-      if( p->eType==JSON_OBJECT ){
-        jsonReturn(pThis, ctx, 0);
-      }else if( p->eType==JSON_ARRAY ){
-        u32 iKey;
-        if( p->bRecursive ){
-          if( p->iRowid==0 ) break;
-          iKey = p->sParse.aNode[p->sParse.aUp[p->i]].u.iKey;
-        }else{
-          iKey = p->iRowid;
-        }
-        tdsqlite3_result_int64(ctx, (tdsqlite3_int64)iKey);
-      }
-      break;
-    }
-    case JEACH_VALUE: {
-      if( pThis->jnFlags & JNODE_LABEL ) pThis++;
-      jsonReturn(pThis, ctx, 0);
-      break;
-    }
-    case JEACH_TYPE: {
-      if( pThis->jnFlags & JNODE_LABEL ) pThis++;
-      tdsqlite3_result_text(ctx, jsonType[pThis->eType], -1, SQLITE_STATIC);
-      break;
-    }
-    case JEACH_ATOM: {
-      if( pThis->jnFlags & JNODE_LABEL ) pThis++;
-      if( pThis->eType>=JSON_ARRAY ) break;
-      jsonReturn(pThis, ctx, 0);
-      break;
-    }
-    case JEACH_ID: {
-      tdsqlite3_result_int64(ctx, 
-         (tdsqlite3_int64)p->i + ((pThis->jnFlags & JNODE_LABEL)!=0));
-      break;
-    }
-    case JEACH_PARENT: {
-      if( p->i>p->iBegin && p->bRecursive ){
-        tdsqlite3_result_int64(ctx, (tdsqlite3_int64)p->sParse.aUp[p->i]);
-      }
-      break;
-    }
-    case JEACH_FULLKEY: {
-      JsonString x;
-      jsonInit(&x, ctx);
-      if( p->bRecursive ){
-        jsonEachComputePath(p, &x, p->i);
-      }else{
-        if( p->zRoot ){
-          jsonAppendRaw(&x, p->zRoot, (int)strlen(p->zRoot));
-        }else{
-          jsonAppendChar(&x, '$');
-        }
-        if( p->eType==JSON_ARRAY ){
-          jsonPrintf(30, &x, "[%d]", p->iRowid);
-        }else if( p->eType==JSON_OBJECT ){
-          jsonPrintf(pThis->n, &x, ".%.*s", pThis->n-2, pThis->u.zJContent+1);
-        }
-      }
-      jsonResult(&x);
-      break;
-    }
-    case JEACH_PATH: {
-      if( p->bRecursive ){
-        JsonString x;
-        jsonInit(&x, ctx);
-        jsonEachComputePath(p, &x, p->sParse.aUp[p->i]);
-        jsonResult(&x);
-        break;
-      }
-      /* For json_each() path and root are the same so fall through
-      ** into the root case */
-    }
-    default: {
-      const char *zRoot = p->zRoot;
-      if( zRoot==0 ) zRoot = "$";
-      tdsqlite3_result_text(ctx, zRoot, -1, SQLITE_STATIC);
-      break;
-    }
-    case JEACH_JSON: {
-      assert( i==JEACH_JSON );
-      tdsqlite3_result_text(ctx, p->sParse.zJson, -1, SQLITE_STATIC);
-      break;
-    }
-  }
-  return SQLITE_OK;
-}
-
-/* Return the current rowid value */
-static int jsonEachRowid(tdsqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
-  JsonEachCursor *p = (JsonEachCursor*)cur;
-  *pRowid = p->iRowid;
-  return SQLITE_OK;
-}
-
-/* The query strategy is to look for an equality constraint on the json
-** column.  Without such a constraint, the table cannot operate.  idxNum is
-** 1 if the constraint is found, 3 if the constraint and zRoot are found,
-** and 0 otherwise.
-*/
-static int jsonEachBestIndex(
-  tdsqlite3_vtab *tab,
-  tdsqlite3_index_info *pIdxInfo
-){
-  int i;                     /* Loop counter or computed array index */
-  int aIdx[2];               /* Index of constraints for JSON and ROOT */
-  int unusableMask = 0;      /* Mask of unusable JSON and ROOT constraints */
-  int idxMask = 0;           /* Mask of usable == constraints JSON and ROOT */
-  const struct tdsqlite3_index_constraint *pConstraint;
-
-  /* This implementation assumes that JSON and ROOT are the last two
-  ** columns in the table */
-  assert( JEACH_ROOT == JEACH_JSON+1 );
-  UNUSED_PARAM(tab);
-  aIdx[0] = aIdx[1] = -1;
-  pConstraint = pIdxInfo->aConstraint;
-  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
-    int iCol;
-    int iMask;
-    if( pConstraint->iColumn < JEACH_JSON ) continue;
-    iCol = pConstraint->iColumn - JEACH_JSON;
-    assert( iCol==0 || iCol==1 );
-    iMask = 1 << iCol;
-    if( pConstraint->usable==0 ){
-      unusableMask |= iMask;
-    }else if( pConstraint->op==SQLITE_INDEX_CONSTRAINT_EQ ){
-      aIdx[iCol] = i;
-      idxMask |= iMask;
-    }
-  }
-  if( (unusableMask & ~idxMask)!=0 ){
-    /* If there are any unusable constraints on JSON or ROOT, then reject
-    ** this entire plan */
-    return SQLITE_CONSTRAINT;
-  }
-  if( aIdx[0]<0 ){
-    /* No JSON input.  Leave estimatedCost at the huge value that it was
-    ** initialized to to discourage the query planner from selecting this
-    ** plan. */
-    pIdxInfo->idxNum = 0;
-  }else{
-    pIdxInfo->estimatedCost = 1.0;
-    i = aIdx[0];
-    pIdxInfo->aConstraintUsage[i].argvIndex = 1;
-    pIdxInfo->aConstraintUsage[i].omit = 1;
-    if( aIdx[1]<0 ){
-      pIdxInfo->idxNum = 1;  /* Only JSON supplied.  Plan 1 */
-    }else{
-      i = aIdx[1];
-      pIdxInfo->aConstraintUsage[i].argvIndex = 2;
-      pIdxInfo->aConstraintUsage[i].omit = 1;
-      pIdxInfo->idxNum = 3;  /* Both JSON and ROOT are supplied.  Plan 3 */
-    }
-  }
-  return SQLITE_OK;
-}
-
-/* Start a search on a new JSON string */
-static int jsonEachFilter(
-  tdsqlite3_vtab_cursor *cur,
-  int idxNum, const char *idxStr,
-  int argc, tdsqlite3_value **argv
-){
-  JsonEachCursor *p = (JsonEachCursor*)cur;
-  const char *z;
-  const char *zRoot = 0;
-  tdsqlite3_int64 n;
-
-  UNUSED_PARAM(idxStr);
-  UNUSED_PARAM(argc);
-  jsonEachCursorReset(p);
-  if( idxNum==0 ) return SQLITE_OK;
-  z = (const char*)tdsqlite3_value_text(argv[0]);
-  if( z==0 ) return SQLITE_OK;
-  n = tdsqlite3_value_bytes(argv[0]);
-  p->zJson = tdsqlite3_malloc64( n+1 );
-  if( p->zJson==0 ) return SQLITE_NOMEM;
-  memcpy(p->zJson, z, (size_t)n+1);
-  if( jsonParse(&p->sParse, 0, p->zJson) ){
-    int rc = SQLITE_NOMEM;
-    if( p->sParse.oom==0 ){
-      tdsqlite3_free(cur->pVtab->zErrMsg);
-      cur->pVtab->zErrMsg = tdsqlite3_mprintf("malformed JSON");
-      if( cur->pVtab->zErrMsg ) rc = SQLITE_ERROR;
-    }
-    jsonEachCursorReset(p);
-    return rc;
-  }else if( p->bRecursive && jsonParseFindParents(&p->sParse) ){
-    jsonEachCursorReset(p);
-    return SQLITE_NOMEM;
-  }else{
-    JsonNode *pNode = 0;
-    if( idxNum==3 ){
-      const char *zErr = 0;
-      zRoot = (const char*)tdsqlite3_value_text(argv[1]);
-      if( zRoot==0 ) return SQLITE_OK;
-      n = tdsqlite3_value_bytes(argv[1]);
-      p->zRoot = tdsqlite3_malloc64( n+1 );
-      if( p->zRoot==0 ) return SQLITE_NOMEM;
-      memcpy(p->zRoot, zRoot, (size_t)n+1);
-      if( zRoot[0]!='$' ){
-        zErr = zRoot;
-      }else{
-        pNode = jsonLookupStep(&p->sParse, 0, p->zRoot+1, 0, &zErr);
-      }
-      if( zErr ){
-        tdsqlite3_free(cur->pVtab->zErrMsg);
-        cur->pVtab->zErrMsg = jsonPathSyntaxError(zErr);
-        jsonEachCursorReset(p);
-        return cur->pVtab->zErrMsg ? SQLITE_ERROR : SQLITE_NOMEM;
-      }else if( pNode==0 ){
-        return SQLITE_OK;
-      }
-    }else{
-      pNode = p->sParse.aNode;
-    }
-    p->iBegin = p->i = (int)(pNode - p->sParse.aNode);
-    p->eType = pNode->eType;
-    if( p->eType>=JSON_ARRAY ){
-      pNode->u.iKey = 0;
-      p->iEnd = p->i + pNode->n + 1;
-      if( p->bRecursive ){
-        p->eType = p->sParse.aNode[p->sParse.aUp[p->i]].eType;
-        if( p->i>0 && (p->sParse.aNode[p->i-1].jnFlags & JNODE_LABEL)!=0 ){
-          p->i--;
-        }
-      }else{
-        p->i++;
-      }
-    }else{
-      p->iEnd = p->i+1;
-    }
-  }
-  return SQLITE_OK;
-}
-
-/* The methods of the json_each virtual table */
-static tdsqlite3_module jsonEachModule = {
-  0,                         /* iVersion */
-  0,                         /* xCreate */
-  jsonEachConnect,           /* xConnect */
-  jsonEachBestIndex,         /* xBestIndex */
-  jsonEachDisconnect,        /* xDisconnect */
-  0,                         /* xDestroy */
-  jsonEachOpenEach,          /* xOpen - open a cursor */
-  jsonEachClose,             /* xClose - close a cursor */
-  jsonEachFilter,            /* xFilter - configure scan constraints */
-  jsonEachNext,              /* xNext - advance a cursor */
-  jsonEachEof,               /* xEof - check for end of scan */
-  jsonEachColumn,            /* xColumn - read data */
-  jsonEachRowid,             /* xRowid - read data */
-  0,                         /* xUpdate */
-  0,                         /* xBegin */
-  0,                         /* xSync */
-  0,                         /* xCommit */
-  0,                         /* xRollback */
-  0,                         /* xFindMethod */
-  0,                         /* xRename */
-  0,                         /* xSavepoint */
-  0,                         /* xRelease */
-  0,                         /* xRollbackTo */
-  0                          /* xShadowName */
-};
-
-/* The methods of the json_tree virtual table. */
-static tdsqlite3_module jsonTreeModule = {
-  0,                         /* iVersion */
-  0,                         /* xCreate */
-  jsonEachConnect,           /* xConnect */
-  jsonEachBestIndex,         /* xBestIndex */
-  jsonEachDisconnect,        /* xDisconnect */
-  0,                         /* xDestroy */
-  jsonEachOpenTree,          /* xOpen - open a cursor */
-  jsonEachClose,             /* xClose - close a cursor */
-  jsonEachFilter,            /* xFilter - configure scan constraints */
-  jsonEachNext,              /* xNext - advance a cursor */
-  jsonEachEof,               /* xEof - check for end of scan */
-  jsonEachColumn,            /* xColumn - read data */
-  jsonEachRowid,             /* xRowid - read data */
-  0,                         /* xUpdate */
-  0,                         /* xBegin */
-  0,                         /* xSync */
-  0,                         /* xCommit */
-  0,                         /* xRollback */
-  0,                         /* xFindMethod */
-  0,                         /* xRename */
-  0,                         /* xSavepoint */
-  0,                         /* xRelease */
-  0,                         /* xRollbackTo */
-  0                          /* xShadowName */
-};
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-/****************************************************************************
-** The following routines are the only publically visible identifiers in this
-** file.  Call the following routines in order to register the various SQL
-** functions and the virtual table implemented by this file.
-****************************************************************************/
-
-SQLITE_PRIVATE int tdsqlite3Json1Init(tdsqlite3 *db){
-  int rc = SQLITE_OK;
-  unsigned int i;
-  static const struct {
-     const char *zName;
-     int nArg;
-     int flag;
-     void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**);
-  } aFunc[] = {
-    { "json",                 1, 0,   jsonRemoveFunc        },
-    { "json_array",          -1, 0,   jsonArrayFunc         },
-    { "json_array_length",    1, 0,   jsonArrayLengthFunc   },
-    { "json_array_length",    2, 0,   jsonArrayLengthFunc   },
-    { "json_extract",        -1, 0,   jsonExtractFunc       },
-    { "json_insert",         -1, 0,   jsonSetFunc           },
-    { "json_object",         -1, 0,   jsonObjectFunc        },
-    { "json_patch",           2, 0,   jsonPatchFunc         },
-    { "json_quote",           1, 0,   jsonQuoteFunc         },
-    { "json_remove",         -1, 0,   jsonRemoveFunc        },
-    { "json_replace",        -1, 0,   jsonReplaceFunc       },
-    { "json_set",            -1, 1,   jsonSetFunc           },
-    { "json_type",            1, 0,   jsonTypeFunc          },
-    { "json_type",            2, 0,   jsonTypeFunc          },
-    { "json_valid",           1, 0,   jsonValidFunc         },
-
-#if SQLITE_DEBUG
-    /* DEBUG and TESTING functions */
-    { "json_parse",           1, 0,   jsonParseFunc         },
-    { "json_test1",           1, 0,   jsonTest1Func         },
-#endif
-  };
-  static const struct {
-     const char *zName;
-     int nArg;
-     void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**);
-     void (*xFinal)(tdsqlite3_context*);
-     void (*xValue)(tdsqlite3_context*);
-  } aAgg[] = {
-    { "json_group_array",     1,
-      jsonArrayStep,   jsonArrayFinal,  jsonArrayValue  },
-    { "json_group_object",    2,
-      jsonObjectStep,  jsonObjectFinal, jsonObjectValue },
-  };
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  static const struct {
-     const char *zName;
-     tdsqlite3_module *pModule;
-  } aMod[] = {
-    { "json_each",            &jsonEachModule               },
-    { "json_tree",            &jsonTreeModule               },
-  };
-#endif
-  static const int enc = 
-       SQLITE_UTF8 |
-       SQLITE_DETERMINISTIC |
-       SQLITE_INNOCUOUS;
-  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){
-    rc = tdsqlite3_create_function(db, aFunc[i].zName, aFunc[i].nArg, enc,
-                                 (void*)&aFunc[i].flag,
-                                 aFunc[i].xFunc, 0, 0);
-  }
-#ifndef SQLITE_OMIT_WINDOWFUNC
-  for(i=0; i<sizeof(aAgg)/sizeof(aAgg[0]) && rc==SQLITE_OK; i++){
-    rc = tdsqlite3_create_window_function(db, aAgg[i].zName, aAgg[i].nArg,
-                                 SQLITE_SUBTYPE | enc, 0,
-                                 aAgg[i].xStep, aAgg[i].xFinal,
-                                 aAgg[i].xValue, jsonGroupInverse, 0);
-  }
-#endif
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  for(i=0; i<sizeof(aMod)/sizeof(aMod[0]) && rc==SQLITE_OK; i++){
-    rc = tdsqlite3_create_module(db, aMod[i].zName, aMod[i].pModule, 0);
-  }
-#endif
-  return rc;
-}
-
-
-#ifndef SQLITE_CORE
-#ifdef _WIN32
-__declspec(dllexport)
-#endif
-SQLITE_API int tdsqlite3_json_init(
-  tdsqlite3 *db, 
-  char **pzErrMsg, 
-  const tdsqlite3_api_routines *pApi
-){
-  SQLITE_EXTENSION_INIT2(pApi);
-  (void)pzErrMsg;  /* Unused parameter */
-  return tdsqlite3Json1Init(db);
-}
-#endif
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_JSON1) */
-
-/************** End of json1.c ***********************************************/
-/************** Begin file rtree.c *******************************************/
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file contains code for implementations of the r-tree and r*-tree
-** algorithms packaged as an SQLite virtual table module.
-*/
-
-/*
-** Database Format of R-Tree Tables
-** --------------------------------
-**
-** The data structure for a single virtual r-tree table is stored in three 
-** native SQLite tables declared as follows. In each case, the '%' character
-** in the table name is replaced with the user-supplied name of the r-tree
-** table.
-**
-**   CREATE TABLE %_node(nodeno INTEGER PRIMARY KEY, data BLOB)
-**   CREATE TABLE %_parent(nodeno INTEGER PRIMARY KEY, parentnode INTEGER)
-**   CREATE TABLE %_rowid(rowid INTEGER PRIMARY KEY, nodeno INTEGER, ...)
-**
-** The data for each node of the r-tree structure is stored in the %_node
-** table. For each node that is not the root node of the r-tree, there is
-** an entry in the %_parent table associating the node with its parent.
-** And for each row of data in the table, there is an entry in the %_rowid
-** table that maps from the entries rowid to the id of the node that it
-** is stored on.  If the r-tree contains auxiliary columns, those are stored
-** on the end of the %_rowid table.
-**
-** The root node of an r-tree always exists, even if the r-tree table is
-** empty. The nodeno of the root node is always 1. All other nodes in the
-** table must be the same size as the root node. The content of each node
-** is formatted as follows:
-**
-**   1. If the node is the root node (node 1), then the first 2 bytes
-**      of the node contain the tree depth as a big-endian integer.
-**      For non-root nodes, the first 2 bytes are left unused.
-**
-**   2. The next 2 bytes contain the number of entries currently 
-**      stored in the node.
-**
-**   3. The remainder of the node contains the node entries. Each entry
-**      consists of a single 8-byte integer followed by an even number
-**      of 4-byte coordinates. For leaf nodes the integer is the rowid
-**      of a record. For internal nodes it is the node number of a
-**      child page.
-*/
-
-#if !defined(SQLITE_CORE) \
-  || (defined(SQLITE_ENABLE_RTREE) && !defined(SQLITE_OMIT_VIRTUALTABLE))
-
-#ifndef SQLITE_CORE
-/*   #include "tdsqlite3ext.h" */
-  SQLITE_EXTENSION_INIT1
-#else
-/*   #include "sqlite3.h" */
-#endif
-SQLITE_PRIVATE int tdsqlite3GetToken(const unsigned char*,int*); /* In the SQLite core */
-
-#ifndef SQLITE_AMALGAMATION
-#include "tdsqlite3rtree.h"
-typedef tdsqlite3_int64 i64;
-typedef tdsqlite3_uint64 u64;
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-#if !defined(NDEBUG) && !defined(SQLITE_DEBUG)
-# define NDEBUG 1
-#endif
-#if defined(NDEBUG) && defined(SQLITE_DEBUG)
-# undef NDEBUG
-#endif
-#endif
-
-/* #include <string.h> */
-/* #include <stdio.h> */
-/* #include <assert.h> */
-
-/*  The following macro is used to suppress compiler warnings.
-*/
-#ifndef UNUSED_PARAMETER
-# define UNUSED_PARAMETER(x) (void)(x)
-#endif
-
-typedef struct Rtree Rtree;
-typedef struct RtreeCursor RtreeCursor;
-typedef struct RtreeNode RtreeNode;
-typedef struct RtreeCell RtreeCell;
-typedef struct RtreeConstraint RtreeConstraint;
-typedef struct RtreeMatchArg RtreeMatchArg;
-typedef struct RtreeGeomCallback RtreeGeomCallback;
-typedef union RtreeCoord RtreeCoord;
-typedef struct RtreeSearchPoint RtreeSearchPoint;
-
-/* The rtree may have between 1 and RTREE_MAX_DIMENSIONS dimensions. */
-#define RTREE_MAX_DIMENSIONS 5
-
-/* Maximum number of auxiliary columns */
-#define RTREE_MAX_AUX_COLUMN 100
-
-/* Size of hash table Rtree.aHash. This hash table is not expected to
-** ever contain very many entries, so a fixed number of buckets is 
-** used.
-*/
-#define HASHSIZE 97
-
-/* The xBestIndex method of this virtual table requires an estimate of
-** the number of rows in the virtual table to calculate the costs of
-** various strategies. If possible, this estimate is loaded from the
-** sqlite_stat1 table (with RTREE_MIN_ROWEST as a hard-coded minimum).
-** Otherwise, if no sqlite_stat1 entry is available, use 
-** RTREE_DEFAULT_ROWEST.
-*/
-#define RTREE_DEFAULT_ROWEST 1048576
-#define RTREE_MIN_ROWEST         100
-
-/* 
-** An rtree virtual-table object.
-*/
-struct Rtree {
-  tdsqlite3_vtab base;          /* Base class.  Must be first */
-  tdsqlite3 *db;                /* Host database connection */
-  int iNodeSize;              /* Size in bytes of each node in the node table */
-  u8 nDim;                    /* Number of dimensions */
-  u8 nDim2;                   /* Twice the number of dimensions */
-  u8 eCoordType;              /* RTREE_COORD_REAL32 or RTREE_COORD_INT32 */
-  u8 nBytesPerCell;           /* Bytes consumed per cell */
-  u8 inWrTrans;               /* True if inside write transaction */
-  u8 nAux;                    /* # of auxiliary columns in %_rowid */
-  u8 nAuxNotNull;             /* Number of initial not-null aux columns */
-#ifdef SQLITE_DEBUG
-  u8 bCorrupt;                /* Shadow table corruption detected */
-#endif
-  int iDepth;                 /* Current depth of the r-tree structure */
-  char *zDb;                  /* Name of database containing r-tree table */
-  char *zName;                /* Name of r-tree table */ 
-  u32 nBusy;                  /* Current number of users of this structure */
-  i64 nRowEst;                /* Estimated number of rows in this table */
-  u32 nCursor;                /* Number of open cursors */
-  u32 nNodeRef;               /* Number RtreeNodes with positive nRef */
-  char *zReadAuxSql;          /* SQL for statement to read aux data */
-
-  /* List of nodes removed during a CondenseTree operation. List is
-  ** linked together via the pointer normally used for hash chains -
-  ** RtreeNode.pNext. RtreeNode.iNode stores the depth of the sub-tree 
-  ** headed by the node (leaf nodes have RtreeNode.iNode==0).
-  */
-  RtreeNode *pDeleted;
-  int iReinsertHeight;        /* Height of sub-trees Reinsert() has run on */
-
-  /* Blob I/O on xxx_node */
-  tdsqlite3_blob *pNodeBlob;
-
-  /* Statements to read/write/delete a record from xxx_node */
-  tdsqlite3_stmt *pWriteNode;
-  tdsqlite3_stmt *pDeleteNode;
-
-  /* Statements to read/write/delete a record from xxx_rowid */
-  tdsqlite3_stmt *pReadRowid;
-  tdsqlite3_stmt *pWriteRowid;
-  tdsqlite3_stmt *pDeleteRowid;
-
-  /* Statements to read/write/delete a record from xxx_parent */
-  tdsqlite3_stmt *pReadParent;
-  tdsqlite3_stmt *pWriteParent;
-  tdsqlite3_stmt *pDeleteParent;
-
-  /* Statement for writing to the "aux:" fields, if there are any */
-  tdsqlite3_stmt *pWriteAux;
-
-  RtreeNode *aHash[HASHSIZE]; /* Hash table of in-memory nodes. */ 
-};
-
-/* Possible values for Rtree.eCoordType: */
-#define RTREE_COORD_REAL32 0
-#define RTREE_COORD_INT32  1
-
-/*
-** If SQLITE_RTREE_INT_ONLY is defined, then this virtual table will
-** only deal with integer coordinates.  No floating point operations
-** will be done.
-*/
-#ifdef SQLITE_RTREE_INT_ONLY
-  typedef tdsqlite3_int64 RtreeDValue;       /* High accuracy coordinate */
-  typedef int RtreeValue;                  /* Low accuracy coordinate */
-# define RTREE_ZERO 0
-#else
-  typedef double RtreeDValue;              /* High accuracy coordinate */
-  typedef float RtreeValue;                /* Low accuracy coordinate */
-# define RTREE_ZERO 0.0
-#endif
-
-/*
-** Set the Rtree.bCorrupt flag
-*/
-#ifdef SQLITE_DEBUG
-# define RTREE_IS_CORRUPT(X) ((X)->bCorrupt = 1)
-#else
-# define RTREE_IS_CORRUPT(X)
-#endif
-
-/*
-** When doing a search of an r-tree, instances of the following structure
-** record intermediate results from the tree walk.
-**
-** The id is always a node-id.  For iLevel>=1 the id is the node-id of
-** the node that the RtreeSearchPoint represents.  When iLevel==0, however,
-** the id is of the parent node and the cell that RtreeSearchPoint
-** represents is the iCell-th entry in the parent node.
-*/
-struct RtreeSearchPoint {
-  RtreeDValue rScore;    /* The score for this node.  Smallest goes first. */
-  tdsqlite3_int64 id;      /* Node ID */
-  u8 iLevel;             /* 0=entries.  1=leaf node.  2+ for higher */
-  u8 eWithin;            /* PARTLY_WITHIN or FULLY_WITHIN */
-  u8 iCell;              /* Cell index within the node */
-};
-
-/*
-** The minimum number of cells allowed for a node is a third of the 
-** maximum. In Gutman's notation:
-**
-**     m = M/3
-**
-** If an R*-tree "Reinsert" operation is required, the same number of
-** cells are removed from the overfull node and reinserted into the tree.
-*/
-#define RTREE_MINCELLS(p) ((((p)->iNodeSize-4)/(p)->nBytesPerCell)/3)
-#define RTREE_REINSERT(p) RTREE_MINCELLS(p)
-#define RTREE_MAXCELLS 51
-
-/*
-** The smallest possible node-size is (512-64)==448 bytes. And the largest
-** supported cell size is 48 bytes (8 byte rowid + ten 4 byte coordinates).
-** Therefore all non-root nodes must contain at least 3 entries. Since 
-** 3^40 is greater than 2^64, an r-tree structure always has a depth of
-** 40 or less.
-*/
-#define RTREE_MAX_DEPTH 40
-
-
-/*
-** Number of entries in the cursor RtreeNode cache.  The first entry is
-** used to cache the RtreeNode for RtreeCursor.sPoint.  The remaining
-** entries cache the RtreeNode for the first elements of the priority queue.
-*/
-#define RTREE_CACHE_SZ  5
-
-/* 
-** An rtree cursor object.
-*/
-struct RtreeCursor {
-  tdsqlite3_vtab_cursor base;         /* Base class.  Must be first */
-  u8 atEOF;                         /* True if at end of search */
-  u8 bPoint;                        /* True if sPoint is valid */
-  u8 bAuxValid;                     /* True if pReadAux is valid */
-  int iStrategy;                    /* Copy of idxNum search parameter */
-  int nConstraint;                  /* Number of entries in aConstraint */
-  RtreeConstraint *aConstraint;     /* Search constraints. */
-  int nPointAlloc;                  /* Number of slots allocated for aPoint[] */
-  int nPoint;                       /* Number of slots used in aPoint[] */
-  int mxLevel;                      /* iLevel value for root of the tree */
-  RtreeSearchPoint *aPoint;         /* Priority queue for search points */
-  tdsqlite3_stmt *pReadAux;           /* Statement to read aux-data */
-  RtreeSearchPoint sPoint;          /* Cached next search point */
-  RtreeNode *aNode[RTREE_CACHE_SZ]; /* Rtree node cache */
-  u32 anQueue[RTREE_MAX_DEPTH+1];   /* Number of queued entries by iLevel */
-};
-
-/* Return the Rtree of a RtreeCursor */
-#define RTREE_OF_CURSOR(X)   ((Rtree*)((X)->base.pVtab))
-
-/*
-** A coordinate can be either a floating point number or a integer.  All
-** coordinates within a single R-Tree are always of the same time.
-*/
-union RtreeCoord {
-  RtreeValue f;      /* Floating point value */
-  int i;             /* Integer value */
-  u32 u;             /* Unsigned for byte-order conversions */
-};
-
-/*
-** The argument is an RtreeCoord. Return the value stored within the RtreeCoord
-** formatted as a RtreeDValue (double or int64). This macro assumes that local
-** variable pRtree points to the Rtree structure associated with the
-** RtreeCoord.
-*/
-#ifdef SQLITE_RTREE_INT_ONLY
-# define DCOORD(coord) ((RtreeDValue)coord.i)
-#else
-# define DCOORD(coord) (                           \
-    (pRtree->eCoordType==RTREE_COORD_REAL32) ?      \
-      ((double)coord.f) :                           \
-      ((double)coord.i)                             \
-  )
-#endif
-
-/*
-** A search constraint.
-*/
-struct RtreeConstraint {
-  int iCoord;                     /* Index of constrained coordinate */
-  int op;                         /* Constraining operation */
-  union {
-    RtreeDValue rValue;             /* Constraint value. */
-    int (*xGeom)(tdsqlite3_rtree_geometry*,int,RtreeDValue*,int*);
-    int (*xQueryFunc)(tdsqlite3_rtree_query_info*);
-  } u;
-  tdsqlite3_rtree_query_info *pInfo;  /* xGeom and xQueryFunc argument */
-};
-
-/* Possible values for RtreeConstraint.op */
-#define RTREE_EQ    0x41  /* A */
-#define RTREE_LE    0x42  /* B */
-#define RTREE_LT    0x43  /* C */
-#define RTREE_GE    0x44  /* D */
-#define RTREE_GT    0x45  /* E */
-#define RTREE_MATCH 0x46  /* F: Old-style tdsqlite3_rtree_geometry_callback() */
-#define RTREE_QUERY 0x47  /* G: New-style tdsqlite3_rtree_query_callback() */
-
-/* Special operators available only on cursors.  Needs to be consecutive
-** with the normal values above, but must be less than RTREE_MATCH.  These
-** are used in the cursor for contraints such as x=NULL (RTREE_FALSE) or
-** x<'xyz' (RTREE_TRUE) */
-#define RTREE_TRUE  0x3f  /* ? */
-#define RTREE_FALSE 0x40  /* @ */
-
-/* 
-** An rtree structure node.
-*/
-struct RtreeNode {
-  RtreeNode *pParent;         /* Parent node */
-  i64 iNode;                  /* The node number */
-  int nRef;                   /* Number of references to this node */
-  int isDirty;                /* True if the node needs to be written to disk */
-  u8 *zData;                  /* Content of the node, as should be on disk */
-  RtreeNode *pNext;           /* Next node in this hash collision chain */
-};
-
-/* Return the number of cells in a node  */
-#define NCELL(pNode) readInt16(&(pNode)->zData[2])
-
-/* 
-** A single cell from a node, deserialized
-*/
-struct RtreeCell {
-  i64 iRowid;                                 /* Node or entry ID */
-  RtreeCoord aCoord[RTREE_MAX_DIMENSIONS*2];  /* Bounding box coordinates */
-};
-
-
-/*
-** This object becomes the tdsqlite3_user_data() for the SQL functions
-** that are created by tdsqlite3_rtree_geometry_callback() and
-** tdsqlite3_rtree_query_callback() and which appear on the right of MATCH
-** operators in order to constrain a search.
-**
-** xGeom and xQueryFunc are the callback functions.  Exactly one of 
-** xGeom and xQueryFunc fields is non-NULL, depending on whether the
-** SQL function was created using tdsqlite3_rtree_geometry_callback() or
-** tdsqlite3_rtree_query_callback().
-** 
-** This object is deleted automatically by the destructor mechanism in
-** tdsqlite3_create_function_v2().
-*/
-struct RtreeGeomCallback {
-  int (*xGeom)(tdsqlite3_rtree_geometry*, int, RtreeDValue*, int*);
-  int (*xQueryFunc)(tdsqlite3_rtree_query_info*);
-  void (*xDestructor)(void*);
-  void *pContext;
-};
-
-/*
-** An instance of this structure (in the form of a BLOB) is returned by
-** the SQL functions that tdsqlite3_rtree_geometry_callback() and
-** tdsqlite3_rtree_query_callback() create, and is read as the right-hand
-** operand to the MATCH operator of an R-Tree.
-*/
-struct RtreeMatchArg {
-  u32 iSize;                  /* Size of this object */
-  RtreeGeomCallback cb;       /* Info about the callback functions */
-  int nParam;                 /* Number of parameters to the SQL function */
-  tdsqlite3_value **apSqlParam; /* Original SQL parameter values */
-  RtreeDValue aParam[1];      /* Values for parameters to the SQL function */
-};
-
-#ifndef MAX
-# define MAX(x,y) ((x) < (y) ? (y) : (x))
-#endif
-#ifndef MIN
-# define MIN(x,y) ((x) > (y) ? (y) : (x))
-#endif
-
-/* What version of GCC is being used.  0 means GCC is not being used .
-** Note that the GCC_VERSION macro will also be set correctly when using
-** clang, since clang works hard to be gcc compatible.  So the gcc
-** optimizations will also work when compiling with clang.
-*/
-#ifndef GCC_VERSION
-#if defined(__GNUC__) && !defined(SQLITE_DISABLE_INTRINSIC)
-# define GCC_VERSION (__GNUC__*1000000+__GNUC_MINOR__*1000+__GNUC_PATCHLEVEL__)
-#else
-# define GCC_VERSION 0
-#endif
-#endif
-
-/* The testcase() macro should already be defined in the amalgamation.  If
-** it is not, make it a no-op.
-*/
-#ifndef SQLITE_AMALGAMATION
-# define testcase(X)
-#endif
-
-/*
-** Macros to determine whether the machine is big or little endian,
-** and whether or not that determination is run-time or compile-time.
-**
-** For best performance, an attempt is made to guess at the byte-order
-** using C-preprocessor macros.  If that is unsuccessful, or if
-** -DSQLITE_RUNTIME_BYTEORDER=1 is set, then byte-order is determined
-** at run-time.
-*/
-#ifndef SQLITE_BYTEORDER
-#if defined(i386)     || defined(__i386__)   || defined(_M_IX86) ||    \
-    defined(__x86_64) || defined(__x86_64__) || defined(_M_X64)  ||    \
-    defined(_M_AMD64) || defined(_M_ARM)     || defined(__x86)   ||    \
-    defined(__arm__)
-# define SQLITE_BYTEORDER    1234
-#elif defined(sparc)    || defined(__ppc__)
-# define SQLITE_BYTEORDER    4321
-#else
-# define SQLITE_BYTEORDER    0     /* 0 means "unknown at compile-time" */
-#endif
-#endif
-
-
-/* What version of MSVC is being used.  0 means MSVC is not being used */
-#ifndef MSVC_VERSION
-#if defined(_MSC_VER) && !defined(SQLITE_DISABLE_INTRINSIC)
-# define MSVC_VERSION _MSC_VER
-#else
-# define MSVC_VERSION 0
-#endif
-#endif
-
-/*
-** Functions to deserialize a 16 bit integer, 32 bit real number and
-** 64 bit integer. The deserialized value is returned.
-*/
-static int readInt16(u8 *p){
-  return (p[0]<<8) + p[1];
-}
-static void readCoord(u8 *p, RtreeCoord *pCoord){
-  assert( ((((char*)p) - (char*)0)&3)==0 );  /* p is always 4-byte aligned */
-#if SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
-  pCoord->u = _byteswap_ulong(*(u32*)p);
-#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
-  pCoord->u = __builtin_bswap32(*(u32*)p);
-#elif SQLITE_BYTEORDER==4321
-  pCoord->u = *(u32*)p;
-#else
-  pCoord->u = (
-    (((u32)p[0]) << 24) + 
-    (((u32)p[1]) << 16) + 
-    (((u32)p[2]) <<  8) + 
-    (((u32)p[3]) <<  0)
-  );
-#endif
-}
-static i64 readInt64(u8 *p){
-#if SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
-  u64 x;
-  memcpy(&x, p, 8);
-  return (i64)_byteswap_uint64(x);
-#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
-  u64 x;
-  memcpy(&x, p, 8);
-  return (i64)__builtin_bswap64(x);
-#elif SQLITE_BYTEORDER==4321
-  i64 x;
-  memcpy(&x, p, 8);
-  return x;
-#else
-  return (i64)(
-    (((u64)p[0]) << 56) + 
-    (((u64)p[1]) << 48) + 
-    (((u64)p[2]) << 40) + 
-    (((u64)p[3]) << 32) + 
-    (((u64)p[4]) << 24) + 
-    (((u64)p[5]) << 16) + 
-    (((u64)p[6]) <<  8) + 
-    (((u64)p[7]) <<  0)
-  );
-#endif
-}
-
-/*
-** Functions to serialize a 16 bit integer, 32 bit real number and
-** 64 bit integer. The value returned is the number of bytes written
-** to the argument buffer (always 2, 4 and 8 respectively).
-*/
-static void writeInt16(u8 *p, int i){
-  p[0] = (i>> 8)&0xFF;
-  p[1] = (i>> 0)&0xFF;
-}
-static int writeCoord(u8 *p, RtreeCoord *pCoord){
-  u32 i;
-  assert( ((((char*)p) - (char*)0)&3)==0 );  /* p is always 4-byte aligned */
-  assert( sizeof(RtreeCoord)==4 );
-  assert( sizeof(u32)==4 );
-#if SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
-  i = __builtin_bswap32(pCoord->u);
-  memcpy(p, &i, 4);
-#elif SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
-  i = _byteswap_ulong(pCoord->u);
-  memcpy(p, &i, 4);
-#elif SQLITE_BYTEORDER==4321
-  i = pCoord->u;
-  memcpy(p, &i, 4);
-#else
-  i = pCoord->u;
-  p[0] = (i>>24)&0xFF;
-  p[1] = (i>>16)&0xFF;
-  p[2] = (i>> 8)&0xFF;
-  p[3] = (i>> 0)&0xFF;
-#endif
-  return 4;
-}
-static int writeInt64(u8 *p, i64 i){
-#if SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
-  i = (i64)__builtin_bswap64((u64)i);
-  memcpy(p, &i, 8);
-#elif SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
-  i = (i64)_byteswap_uint64((u64)i);
-  memcpy(p, &i, 8);
-#elif SQLITE_BYTEORDER==4321
-  memcpy(p, &i, 8);
-#else
-  p[0] = (i>>56)&0xFF;
-  p[1] = (i>>48)&0xFF;
-  p[2] = (i>>40)&0xFF;
-  p[3] = (i>>32)&0xFF;
-  p[4] = (i>>24)&0xFF;
-  p[5] = (i>>16)&0xFF;
-  p[6] = (i>> 8)&0xFF;
-  p[7] = (i>> 0)&0xFF;
-#endif
-  return 8;
-}
-
-/*
-** Increment the reference count of node p.
-*/
-static void nodeReference(RtreeNode *p){
-  if( p ){
-    assert( p->nRef>0 );
-    p->nRef++;
-  }
-}
-
-/*
-** Clear the content of node p (set all bytes to 0x00).
-*/
-static void nodeZero(Rtree *pRtree, RtreeNode *p){
-  memset(&p->zData[2], 0, pRtree->iNodeSize-2);
-  p->isDirty = 1;
-}
-
-/*
-** Given a node number iNode, return the corresponding key to use
-** in the Rtree.aHash table.
-*/
-static unsigned int nodeHash(i64 iNode){
-  return ((unsigned)iNode) % HASHSIZE;
-}
-
-/*
-** Search the node hash table for node iNode. If found, return a pointer
-** to it. Otherwise, return 0.
-*/
-static RtreeNode *nodeHashLookup(Rtree *pRtree, i64 iNode){
-  RtreeNode *p;
-  for(p=pRtree->aHash[nodeHash(iNode)]; p && p->iNode!=iNode; p=p->pNext);
-  return p;
-}
-
-/*
-** Add node pNode to the node hash table.
-*/
-static void nodeHashInsert(Rtree *pRtree, RtreeNode *pNode){
-  int iHash;
-  assert( pNode->pNext==0 );
-  iHash = nodeHash(pNode->iNode);
-  pNode->pNext = pRtree->aHash[iHash];
-  pRtree->aHash[iHash] = pNode;
-}
-
-/*
-** Remove node pNode from the node hash table.
-*/
-static void nodeHashDelete(Rtree *pRtree, RtreeNode *pNode){
-  RtreeNode **pp;
-  if( pNode->iNode!=0 ){
-    pp = &pRtree->aHash[nodeHash(pNode->iNode)];
-    for( ; (*pp)!=pNode; pp = &(*pp)->pNext){ assert(*pp); }
-    *pp = pNode->pNext;
-    pNode->pNext = 0;
-  }
-}
-
-/*
-** Allocate and return new r-tree node. Initially, (RtreeNode.iNode==0),
-** indicating that node has not yet been assigned a node number. It is
-** assigned a node number when nodeWrite() is called to write the
-** node contents out to the database.
-*/
-static RtreeNode *nodeNew(Rtree *pRtree, RtreeNode *pParent){
-  RtreeNode *pNode;
-  pNode = (RtreeNode *)tdsqlite3_malloc64(sizeof(RtreeNode) + pRtree->iNodeSize);
-  if( pNode ){
-    memset(pNode, 0, sizeof(RtreeNode) + pRtree->iNodeSize);
-    pNode->zData = (u8 *)&pNode[1];
-    pNode->nRef = 1;
-    pRtree->nNodeRef++;
-    pNode->pParent = pParent;
-    pNode->isDirty = 1;
-    nodeReference(pParent);
-  }
-  return pNode;
-}
-
-/*
-** Clear the Rtree.pNodeBlob object
-*/
-static void nodeBlobReset(Rtree *pRtree){
-  if( pRtree->pNodeBlob && pRtree->inWrTrans==0 && pRtree->nCursor==0 ){
-    tdsqlite3_blob *pBlob = pRtree->pNodeBlob;
-    pRtree->pNodeBlob = 0;
-    tdsqlite3_blob_close(pBlob);
-  }
-}
-
-/*
-** Check to see if pNode is the same as pParent or any of the parents
-** of pParent.
-*/
-static int nodeInParentChain(const RtreeNode *pNode, const RtreeNode *pParent){
-  do{
-    if( pNode==pParent ) return 1;
-    pParent = pParent->pParent;
-  }while( pParent );
-  return 0;
-}
-
-/*
-** Obtain a reference to an r-tree node.
-*/
-static int nodeAcquire(
-  Rtree *pRtree,             /* R-tree structure */
-  i64 iNode,                 /* Node number to load */
-  RtreeNode *pParent,        /* Either the parent node or NULL */
-  RtreeNode **ppNode         /* OUT: Acquired node */
-){
-  int rc = SQLITE_OK;
-  RtreeNode *pNode = 0;
-
-  /* Check if the requested node is already in the hash table. If so,
-  ** increase its reference count and return it.
-  */
-  if( (pNode = nodeHashLookup(pRtree, iNode))!=0 ){
-    if( pParent && !pNode->pParent ){
-      if( nodeInParentChain(pNode, pParent) ){
-        RTREE_IS_CORRUPT(pRtree);
-        return SQLITE_CORRUPT_VTAB;
-      }
-      pParent->nRef++;
-      pNode->pParent = pParent;
-    }else if( pParent && pNode->pParent && pParent!=pNode->pParent ){
-      RTREE_IS_CORRUPT(pRtree);
-      return SQLITE_CORRUPT_VTAB;
-    }
-    pNode->nRef++;
-    *ppNode = pNode;
-    return SQLITE_OK;
-  }
-
-  if( pRtree->pNodeBlob ){
-    tdsqlite3_blob *pBlob = pRtree->pNodeBlob;
-    pRtree->pNodeBlob = 0;
-    rc = tdsqlite3_blob_reopen(pBlob, iNode);
-    pRtree->pNodeBlob = pBlob;
-    if( rc ){
-      nodeBlobReset(pRtree);
-      if( rc==SQLITE_NOMEM ) return SQLITE_NOMEM;
-    }
-  }
-  if( pRtree->pNodeBlob==0 ){
-    char *zTab = tdsqlite3_mprintf("%s_node", pRtree->zName);
-    if( zTab==0 ) return SQLITE_NOMEM;
-    rc = tdsqlite3_blob_open(pRtree->db, pRtree->zDb, zTab, "data", iNode, 0,
-                           &pRtree->pNodeBlob);
-    tdsqlite3_free(zTab);
-  }
-  if( rc ){
-    nodeBlobReset(pRtree);
-    *ppNode = 0;
-    /* If unable to open an tdsqlite3_blob on the desired row, that can only
-    ** be because the shadow tables hold erroneous data. */
-    if( rc==SQLITE_ERROR ){
-      rc = SQLITE_CORRUPT_VTAB;
-      RTREE_IS_CORRUPT(pRtree);
-    }
-  }else if( pRtree->iNodeSize==tdsqlite3_blob_bytes(pRtree->pNodeBlob) ){
-    pNode = (RtreeNode *)tdsqlite3_malloc64(sizeof(RtreeNode)+pRtree->iNodeSize);
-    if( !pNode ){
-      rc = SQLITE_NOMEM;
-    }else{
-      pNode->pParent = pParent;
-      pNode->zData = (u8 *)&pNode[1];
-      pNode->nRef = 1;
-      pRtree->nNodeRef++;
-      pNode->iNode = iNode;
-      pNode->isDirty = 0;
-      pNode->pNext = 0;
-      rc = tdsqlite3_blob_read(pRtree->pNodeBlob, pNode->zData,
-                             pRtree->iNodeSize, 0);
-    }
-  }
-
-  /* If the root node was just loaded, set pRtree->iDepth to the height
-  ** of the r-tree structure. A height of zero means all data is stored on
-  ** the root node. A height of one means the children of the root node
-  ** are the leaves, and so on. If the depth as specified on the root node
-  ** is greater than RTREE_MAX_DEPTH, the r-tree structure must be corrupt.
-  */
-  if( pNode && iNode==1 ){
-    pRtree->iDepth = readInt16(pNode->zData);
-    if( pRtree->iDepth>RTREE_MAX_DEPTH ){
-      rc = SQLITE_CORRUPT_VTAB;
-      RTREE_IS_CORRUPT(pRtree);
-    }
-  }
-
-  /* If no error has occurred so far, check if the "number of entries"
-  ** field on the node is too large. If so, set the return code to 
-  ** SQLITE_CORRUPT_VTAB.
-  */
-  if( pNode && rc==SQLITE_OK ){
-    if( NCELL(pNode)>((pRtree->iNodeSize-4)/pRtree->nBytesPerCell) ){
-      rc = SQLITE_CORRUPT_VTAB;
-      RTREE_IS_CORRUPT(pRtree);
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    if( pNode!=0 ){
-      nodeReference(pParent);
-      nodeHashInsert(pRtree, pNode);
-    }else{
-      rc = SQLITE_CORRUPT_VTAB;
-      RTREE_IS_CORRUPT(pRtree);
-    }
-    *ppNode = pNode;
-  }else{
-    if( pNode ){
-      pRtree->nNodeRef--;
-      tdsqlite3_free(pNode);
-    }
-    *ppNode = 0;
-  }
-
-  return rc;
-}
-
-/*
-** Overwrite cell iCell of node pNode with the contents of pCell.
-*/
-static void nodeOverwriteCell(
-  Rtree *pRtree,             /* The overall R-Tree */
-  RtreeNode *pNode,          /* The node into which the cell is to be written */
-  RtreeCell *pCell,          /* The cell to write */
-  int iCell                  /* Index into pNode into which pCell is written */
-){
-  int ii;
-  u8 *p = &pNode->zData[4 + pRtree->nBytesPerCell*iCell];
-  p += writeInt64(p, pCell->iRowid);
-  for(ii=0; ii<pRtree->nDim2; ii++){
-    p += writeCoord(p, &pCell->aCoord[ii]);
-  }
-  pNode->isDirty = 1;
-}
-
-/*
-** Remove the cell with index iCell from node pNode.
-*/
-static void nodeDeleteCell(Rtree *pRtree, RtreeNode *pNode, int iCell){
-  u8 *pDst = &pNode->zData[4 + pRtree->nBytesPerCell*iCell];
-  u8 *pSrc = &pDst[pRtree->nBytesPerCell];
-  int nByte = (NCELL(pNode) - iCell - 1) * pRtree->nBytesPerCell;
-  memmove(pDst, pSrc, nByte);
-  writeInt16(&pNode->zData[2], NCELL(pNode)-1);
-  pNode->isDirty = 1;
-}
-
-/*
-** Insert the contents of cell pCell into node pNode. If the insert
-** is successful, return SQLITE_OK.
-**
-** If there is not enough free space in pNode, return SQLITE_FULL.
-*/
-static int nodeInsertCell(
-  Rtree *pRtree,                /* The overall R-Tree */
-  RtreeNode *pNode,             /* Write new cell into this node */
-  RtreeCell *pCell              /* The cell to be inserted */
-){
-  int nCell;                    /* Current number of cells in pNode */
-  int nMaxCell;                 /* Maximum number of cells for pNode */
-
-  nMaxCell = (pRtree->iNodeSize-4)/pRtree->nBytesPerCell;
-  nCell = NCELL(pNode);
-
-  assert( nCell<=nMaxCell );
-  if( nCell<nMaxCell ){
-    nodeOverwriteCell(pRtree, pNode, pCell, nCell);
-    writeInt16(&pNode->zData[2], nCell+1);
-    pNode->isDirty = 1;
-  }
-
-  return (nCell==nMaxCell);
-}
-
-/*
-** If the node is dirty, write it out to the database.
-*/
-static int nodeWrite(Rtree *pRtree, RtreeNode *pNode){
-  int rc = SQLITE_OK;
-  if( pNode->isDirty ){
-    tdsqlite3_stmt *p = pRtree->pWriteNode;
-    if( pNode->iNode ){
-      tdsqlite3_bind_int64(p, 1, pNode->iNode);
-    }else{
-      tdsqlite3_bind_null(p, 1);
-    }
-    tdsqlite3_bind_blob(p, 2, pNode->zData, pRtree->iNodeSize, SQLITE_STATIC);
-    tdsqlite3_step(p);
-    pNode->isDirty = 0;
-    rc = tdsqlite3_reset(p);
-    tdsqlite3_bind_null(p, 2);
-    if( pNode->iNode==0 && rc==SQLITE_OK ){
-      pNode->iNode = tdsqlite3_last_insert_rowid(pRtree->db);
-      nodeHashInsert(pRtree, pNode);
-    }
-  }
-  return rc;
-}
-
-/*
-** Release a reference to a node. If the node is dirty and the reference
-** count drops to zero, the node data is written to the database.
-*/
-static int nodeRelease(Rtree *pRtree, RtreeNode *pNode){
-  int rc = SQLITE_OK;
-  if( pNode ){
-    assert( pNode->nRef>0 );
-    assert( pRtree->nNodeRef>0 );
-    pNode->nRef--;
-    if( pNode->nRef==0 ){
-      pRtree->nNodeRef--;
-      if( pNode->iNode==1 ){
-        pRtree->iDepth = -1;
-      }
-      if( pNode->pParent ){
-        rc = nodeRelease(pRtree, pNode->pParent);
-      }
-      if( rc==SQLITE_OK ){
-        rc = nodeWrite(pRtree, pNode);
-      }
-      nodeHashDelete(pRtree, pNode);
-      tdsqlite3_free(pNode);
-    }
-  }
-  return rc;
-}
-
-/*
-** Return the 64-bit integer value associated with cell iCell of
-** node pNode. If pNode is a leaf node, this is a rowid. If it is
-** an internal node, then the 64-bit integer is a child page number.
-*/
-static i64 nodeGetRowid(
-  Rtree *pRtree,       /* The overall R-Tree */
-  RtreeNode *pNode,    /* The node from which to extract the ID */
-  int iCell            /* The cell index from which to extract the ID */
-){
-  assert( iCell<NCELL(pNode) );
-  return readInt64(&pNode->zData[4 + pRtree->nBytesPerCell*iCell]);
-}
-
-/*
-** Return coordinate iCoord from cell iCell in node pNode.
-*/
-static void nodeGetCoord(
-  Rtree *pRtree,               /* The overall R-Tree */
-  RtreeNode *pNode,            /* The node from which to extract a coordinate */
-  int iCell,                   /* The index of the cell within the node */
-  int iCoord,                  /* Which coordinate to extract */
-  RtreeCoord *pCoord           /* OUT: Space to write result to */
-){
-  readCoord(&pNode->zData[12 + pRtree->nBytesPerCell*iCell + 4*iCoord], pCoord);
-}
-
-/*
-** Deserialize cell iCell of node pNode. Populate the structure pointed
-** to by pCell with the results.
-*/
-static void nodeGetCell(
-  Rtree *pRtree,               /* The overall R-Tree */
-  RtreeNode *pNode,            /* The node containing the cell to be read */
-  int iCell,                   /* Index of the cell within the node */
-  RtreeCell *pCell             /* OUT: Write the cell contents here */
-){
-  u8 *pData;
-  RtreeCoord *pCoord;
-  int ii = 0;
-  pCell->iRowid = nodeGetRowid(pRtree, pNode, iCell);
-  pData = pNode->zData + (12 + pRtree->nBytesPerCell*iCell);
-  pCoord = pCell->aCoord;
-  do{
-    readCoord(pData, &pCoord[ii]);
-    readCoord(pData+4, &pCoord[ii+1]);
-    pData += 8;
-    ii += 2;
-  }while( ii<pRtree->nDim2 );
-}
-
-
-/* Forward declaration for the function that does the work of
-** the virtual table module xCreate() and xConnect() methods.
-*/
-static int rtreeInit(
-  tdsqlite3 *, void *, int, const char *const*, tdsqlite3_vtab **, char **, int
-);
-
-/* 
-** Rtree virtual table module xCreate method.
-*/
-static int rtreeCreate(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  return rtreeInit(db, pAux, argc, argv, ppVtab, pzErr, 1);
-}
-
-/* 
-** Rtree virtual table module xConnect method.
-*/
-static int rtreeConnect(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  return rtreeInit(db, pAux, argc, argv, ppVtab, pzErr, 0);
-}
-
-/*
-** Increment the r-tree reference count.
-*/
-static void rtreeReference(Rtree *pRtree){
-  pRtree->nBusy++;
-}
-
-/*
-** Decrement the r-tree reference count. When the reference count reaches
-** zero the structure is deleted.
-*/
-static void rtreeRelease(Rtree *pRtree){
-  pRtree->nBusy--;
-  if( pRtree->nBusy==0 ){
-    pRtree->inWrTrans = 0;
-    assert( pRtree->nCursor==0 );
-    nodeBlobReset(pRtree);
-    assert( pRtree->nNodeRef==0 || pRtree->bCorrupt );
-    tdsqlite3_finalize(pRtree->pWriteNode);
-    tdsqlite3_finalize(pRtree->pDeleteNode);
-    tdsqlite3_finalize(pRtree->pReadRowid);
-    tdsqlite3_finalize(pRtree->pWriteRowid);
-    tdsqlite3_finalize(pRtree->pDeleteRowid);
-    tdsqlite3_finalize(pRtree->pReadParent);
-    tdsqlite3_finalize(pRtree->pWriteParent);
-    tdsqlite3_finalize(pRtree->pDeleteParent);
-    tdsqlite3_finalize(pRtree->pWriteAux);
-    tdsqlite3_free(pRtree->zReadAuxSql);
-    tdsqlite3_free(pRtree);
-  }
-}
-
-/* 
-** Rtree virtual table module xDisconnect method.
-*/
-static int rtreeDisconnect(tdsqlite3_vtab *pVtab){
-  rtreeRelease((Rtree *)pVtab);
-  return SQLITE_OK;
-}
-
-/* 
-** Rtree virtual table module xDestroy method.
-*/
-static int rtreeDestroy(tdsqlite3_vtab *pVtab){
-  Rtree *pRtree = (Rtree *)pVtab;
-  int rc;
-  char *zCreate = tdsqlite3_mprintf(
-    "DROP TABLE '%q'.'%q_node';"
-    "DROP TABLE '%q'.'%q_rowid';"
-    "DROP TABLE '%q'.'%q_parent';",
-    pRtree->zDb, pRtree->zName, 
-    pRtree->zDb, pRtree->zName,
-    pRtree->zDb, pRtree->zName
-  );
-  if( !zCreate ){
-    rc = SQLITE_NOMEM;
-  }else{
-    nodeBlobReset(pRtree);
-    rc = tdsqlite3_exec(pRtree->db, zCreate, 0, 0, 0);
-    tdsqlite3_free(zCreate);
-  }
-  if( rc==SQLITE_OK ){
-    rtreeRelease(pRtree);
-  }
-
-  return rc;
-}
-
-/* 
-** Rtree virtual table module xOpen method.
-*/
-static int rtreeOpen(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCursor){
-  int rc = SQLITE_NOMEM;
-  Rtree *pRtree = (Rtree *)pVTab;
-  RtreeCursor *pCsr;
-
-  pCsr = (RtreeCursor *)tdsqlite3_malloc64(sizeof(RtreeCursor));
-  if( pCsr ){
-    memset(pCsr, 0, sizeof(RtreeCursor));
-    pCsr->base.pVtab = pVTab;
-    rc = SQLITE_OK;
-    pRtree->nCursor++;
-  }
-  *ppCursor = (tdsqlite3_vtab_cursor *)pCsr;
-
-  return rc;
-}
-
-
-/*
-** Reset a cursor back to its initial state.
-*/
-static void resetCursor(RtreeCursor *pCsr){
-  Rtree *pRtree = (Rtree *)(pCsr->base.pVtab);
-  int ii;
-  tdsqlite3_stmt *pStmt;
-  if( pCsr->aConstraint ){
-    int i;                        /* Used to iterate through constraint array */
-    for(i=0; i<pCsr->nConstraint; i++){
-      tdsqlite3_rtree_query_info *pInfo = pCsr->aConstraint[i].pInfo;
-      if( pInfo ){
-        if( pInfo->xDelUser ) pInfo->xDelUser(pInfo->pUser);
-        tdsqlite3_free(pInfo);
-      }
-    }
-    tdsqlite3_free(pCsr->aConstraint);
-    pCsr->aConstraint = 0;
-  }
-  for(ii=0; ii<RTREE_CACHE_SZ; ii++) nodeRelease(pRtree, pCsr->aNode[ii]);
-  tdsqlite3_free(pCsr->aPoint);
-  pStmt = pCsr->pReadAux;
-  memset(pCsr, 0, sizeof(RtreeCursor));
-  pCsr->base.pVtab = (tdsqlite3_vtab*)pRtree;
-  pCsr->pReadAux = pStmt;
-
-}
-
-/* 
-** Rtree virtual table module xClose method.
-*/
-static int rtreeClose(tdsqlite3_vtab_cursor *cur){
-  Rtree *pRtree = (Rtree *)(cur->pVtab);
-  RtreeCursor *pCsr = (RtreeCursor *)cur;
-  assert( pRtree->nCursor>0 );
-  resetCursor(pCsr);
-  tdsqlite3_finalize(pCsr->pReadAux);
-  tdsqlite3_free(pCsr);
-  pRtree->nCursor--;
-  nodeBlobReset(pRtree);
-  return SQLITE_OK;
-}
-
-/*
-** Rtree virtual table module xEof method.
-**
-** Return non-zero if the cursor does not currently point to a valid 
-** record (i.e if the scan has finished), or zero otherwise.
-*/
-static int rtreeEof(tdsqlite3_vtab_cursor *cur){
-  RtreeCursor *pCsr = (RtreeCursor *)cur;
-  return pCsr->atEOF;
-}
-
-/*
-** Convert raw bits from the on-disk RTree record into a coordinate value.
-** The on-disk format is big-endian and needs to be converted for little-
-** endian platforms.  The on-disk record stores integer coordinates if
-** eInt is true and it stores 32-bit floating point records if eInt is
-** false.  a[] is the four bytes of the on-disk record to be decoded.
-** Store the results in "r".
-**
-** There are five versions of this macro.  The last one is generic.  The
-** other four are various architectures-specific optimizations.
-*/
-#if SQLITE_BYTEORDER==1234 && MSVC_VERSION>=1300
-#define RTREE_DECODE_COORD(eInt, a, r) {                        \
-    RtreeCoord c;    /* Coordinate decoded */                   \
-    c.u = _byteswap_ulong(*(u32*)a);                            \
-    r = eInt ? (tdsqlite3_rtree_dbl)c.i : (tdsqlite3_rtree_dbl)c.f; \
-}
-#elif SQLITE_BYTEORDER==1234 && GCC_VERSION>=4003000
-#define RTREE_DECODE_COORD(eInt, a, r) {                        \
-    RtreeCoord c;    /* Coordinate decoded */                   \
-    c.u = __builtin_bswap32(*(u32*)a);                          \
-    r = eInt ? (tdsqlite3_rtree_dbl)c.i : (tdsqlite3_rtree_dbl)c.f; \
-}
-#elif SQLITE_BYTEORDER==1234
-#define RTREE_DECODE_COORD(eInt, a, r) {                        \
-    RtreeCoord c;    /* Coordinate decoded */                   \
-    memcpy(&c.u,a,4);                                           \
-    c.u = ((c.u>>24)&0xff)|((c.u>>8)&0xff00)|                   \
-          ((c.u&0xff)<<24)|((c.u&0xff00)<<8);                   \
-    r = eInt ? (tdsqlite3_rtree_dbl)c.i : (tdsqlite3_rtree_dbl)c.f; \
-}
-#elif SQLITE_BYTEORDER==4321
-#define RTREE_DECODE_COORD(eInt, a, r) {                        \
-    RtreeCoord c;    /* Coordinate decoded */                   \
-    memcpy(&c.u,a,4);                                           \
-    r = eInt ? (tdsqlite3_rtree_dbl)c.i : (tdsqlite3_rtree_dbl)c.f; \
-}
-#else
-#define RTREE_DECODE_COORD(eInt, a, r) {                        \
-    RtreeCoord c;    /* Coordinate decoded */                   \
-    c.u = ((u32)a[0]<<24) + ((u32)a[1]<<16)                     \
-           +((u32)a[2]<<8) + a[3];                              \
-    r = eInt ? (tdsqlite3_rtree_dbl)c.i : (tdsqlite3_rtree_dbl)c.f; \
-}
-#endif
-
-/*
-** Check the RTree node or entry given by pCellData and p against the MATCH
-** constraint pConstraint.  
-*/
-static int rtreeCallbackConstraint(
-  RtreeConstraint *pConstraint,  /* The constraint to test */
-  int eInt,                      /* True if RTree holding integer coordinates */
-  u8 *pCellData,                 /* Raw cell content */
-  RtreeSearchPoint *pSearch,     /* Container of this cell */
-  tdsqlite3_rtree_dbl *prScore,    /* OUT: score for the cell */
-  int *peWithin                  /* OUT: visibility of the cell */
-){
-  tdsqlite3_rtree_query_info *pInfo = pConstraint->pInfo; /* Callback info */
-  int nCoord = pInfo->nCoord;                           /* No. of coordinates */
-  int rc;                                             /* Callback return code */
-  RtreeCoord c;                                       /* Translator union */
-  tdsqlite3_rtree_dbl aCoord[RTREE_MAX_DIMENSIONS*2];   /* Decoded coordinates */
-
-  assert( pConstraint->op==RTREE_MATCH || pConstraint->op==RTREE_QUERY );
-  assert( nCoord==2 || nCoord==4 || nCoord==6 || nCoord==8 || nCoord==10 );
-
-  if( pConstraint->op==RTREE_QUERY && pSearch->iLevel==1 ){
-    pInfo->iRowid = readInt64(pCellData);
-  }
-  pCellData += 8;
-#ifndef SQLITE_RTREE_INT_ONLY
-  if( eInt==0 ){
-    switch( nCoord ){
-      case 10:  readCoord(pCellData+36, &c); aCoord[9] = c.f;
-                readCoord(pCellData+32, &c); aCoord[8] = c.f;
-      case 8:   readCoord(pCellData+28, &c); aCoord[7] = c.f;
-                readCoord(pCellData+24, &c); aCoord[6] = c.f;
-      case 6:   readCoord(pCellData+20, &c); aCoord[5] = c.f;
-                readCoord(pCellData+16, &c); aCoord[4] = c.f;
-      case 4:   readCoord(pCellData+12, &c); aCoord[3] = c.f;
-                readCoord(pCellData+8,  &c); aCoord[2] = c.f;
-      default:  readCoord(pCellData+4,  &c); aCoord[1] = c.f;
-                readCoord(pCellData,    &c); aCoord[0] = c.f;
-    }
-  }else
-#endif
-  {
-    switch( nCoord ){
-      case 10:  readCoord(pCellData+36, &c); aCoord[9] = c.i;
-                readCoord(pCellData+32, &c); aCoord[8] = c.i;
-      case 8:   readCoord(pCellData+28, &c); aCoord[7] = c.i;
-                readCoord(pCellData+24, &c); aCoord[6] = c.i;
-      case 6:   readCoord(pCellData+20, &c); aCoord[5] = c.i;
-                readCoord(pCellData+16, &c); aCoord[4] = c.i;
-      case 4:   readCoord(pCellData+12, &c); aCoord[3] = c.i;
-                readCoord(pCellData+8,  &c); aCoord[2] = c.i;
-      default:  readCoord(pCellData+4,  &c); aCoord[1] = c.i;
-                readCoord(pCellData,    &c); aCoord[0] = c.i;
-    }
-  }
-  if( pConstraint->op==RTREE_MATCH ){
-    int eWithin = 0;
-    rc = pConstraint->u.xGeom((tdsqlite3_rtree_geometry*)pInfo,
-                              nCoord, aCoord, &eWithin);
-    if( eWithin==0 ) *peWithin = NOT_WITHIN;
-    *prScore = RTREE_ZERO;
-  }else{
-    pInfo->aCoord = aCoord;
-    pInfo->iLevel = pSearch->iLevel - 1;
-    pInfo->rScore = pInfo->rParentScore = pSearch->rScore;
-    pInfo->eWithin = pInfo->eParentWithin = pSearch->eWithin;
-    rc = pConstraint->u.xQueryFunc(pInfo);
-    if( pInfo->eWithin<*peWithin ) *peWithin = pInfo->eWithin;
-    if( pInfo->rScore<*prScore || *prScore<RTREE_ZERO ){
-      *prScore = pInfo->rScore;
-    }
-  }
-  return rc;
-}
-
-/* 
-** Check the internal RTree node given by pCellData against constraint p.
-** If this constraint cannot be satisfied by any child within the node,
-** set *peWithin to NOT_WITHIN.
-*/
-static void rtreeNonleafConstraint(
-  RtreeConstraint *p,        /* The constraint to test */
-  int eInt,                  /* True if RTree holds integer coordinates */
-  u8 *pCellData,             /* Raw cell content as appears on disk */
-  int *peWithin              /* Adjust downward, as appropriate */
-){
-  tdsqlite3_rtree_dbl val;     /* Coordinate value convert to a double */
-
-  /* p->iCoord might point to either a lower or upper bound coordinate
-  ** in a coordinate pair.  But make pCellData point to the lower bound.
-  */
-  pCellData += 8 + 4*(p->iCoord&0xfe);
-
-  assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE 
-      || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_TRUE
-      || p->op==RTREE_FALSE );
-  assert( ((((char*)pCellData) - (char*)0)&3)==0 );  /* 4-byte aligned */
-  switch( p->op ){
-    case RTREE_TRUE:  return;   /* Always satisfied */
-    case RTREE_FALSE: break;    /* Never satisfied */
-    case RTREE_LE:
-    case RTREE_LT:
-    case RTREE_EQ:
-      RTREE_DECODE_COORD(eInt, pCellData, val);
-      /* val now holds the lower bound of the coordinate pair */
-      if( p->u.rValue>=val ) return;
-      if( p->op!=RTREE_EQ ) break;  /* RTREE_LE and RTREE_LT end here */
-      /* Fall through for the RTREE_EQ case */
-
-    default: /* RTREE_GT or RTREE_GE,  or fallthrough of RTREE_EQ */
-      pCellData += 4;
-      RTREE_DECODE_COORD(eInt, pCellData, val);
-      /* val now holds the upper bound of the coordinate pair */
-      if( p->u.rValue<=val ) return;
-  }
-  *peWithin = NOT_WITHIN;
-}
-
-/*
-** Check the leaf RTree cell given by pCellData against constraint p.
-** If this constraint is not satisfied, set *peWithin to NOT_WITHIN.
-** If the constraint is satisfied, leave *peWithin unchanged.
-**
-** The constraint is of the form:  xN op $val
-**
-** The op is given by p->op.  The xN is p->iCoord-th coordinate in
-** pCellData.  $val is given by p->u.rValue.
-*/
-static void rtreeLeafConstraint(
-  RtreeConstraint *p,        /* The constraint to test */
-  int eInt,                  /* True if RTree holds integer coordinates */
-  u8 *pCellData,             /* Raw cell content as appears on disk */
-  int *peWithin              /* Adjust downward, as appropriate */
-){
-  RtreeDValue xN;      /* Coordinate value converted to a double */
-
-  assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE 
-      || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_TRUE
-      || p->op==RTREE_FALSE );
-  pCellData += 8 + p->iCoord*4;
-  assert( ((((char*)pCellData) - (char*)0)&3)==0 );  /* 4-byte aligned */
-  RTREE_DECODE_COORD(eInt, pCellData, xN);
-  switch( p->op ){
-    case RTREE_TRUE:  return;   /* Always satisfied */
-    case RTREE_FALSE: break;    /* Never satisfied */
-    case RTREE_LE:    if( xN <= p->u.rValue ) return;  break;
-    case RTREE_LT:    if( xN <  p->u.rValue ) return;  break;
-    case RTREE_GE:    if( xN >= p->u.rValue ) return;  break;
-    case RTREE_GT:    if( xN >  p->u.rValue ) return;  break;
-    default:          if( xN == p->u.rValue ) return;  break;
-  }
-  *peWithin = NOT_WITHIN;
-}
-
-/*
-** One of the cells in node pNode is guaranteed to have a 64-bit 
-** integer value equal to iRowid. Return the index of this cell.
-*/
-static int nodeRowidIndex(
-  Rtree *pRtree, 
-  RtreeNode *pNode, 
-  i64 iRowid,
-  int *piIndex
-){
-  int ii;
-  int nCell = NCELL(pNode);
-  assert( nCell<200 );
-  for(ii=0; ii<nCell; ii++){
-    if( nodeGetRowid(pRtree, pNode, ii)==iRowid ){
-      *piIndex = ii;
-      return SQLITE_OK;
-    }
-  }
-  RTREE_IS_CORRUPT(pRtree);
-  return SQLITE_CORRUPT_VTAB;
-}
-
-/*
-** Return the index of the cell containing a pointer to node pNode
-** in its parent. If pNode is the root node, return -1.
-*/
-static int nodeParentIndex(Rtree *pRtree, RtreeNode *pNode, int *piIndex){
-  RtreeNode *pParent = pNode->pParent;
-  if( pParent ){
-    return nodeRowidIndex(pRtree, pParent, pNode->iNode, piIndex);
-  }
-  *piIndex = -1;
-  return SQLITE_OK;
-}
-
-/*
-** Compare two search points.  Return negative, zero, or positive if the first
-** is less than, equal to, or greater than the second.
-**
-** The rScore is the primary key.  Smaller rScore values come first.
-** If the rScore is a tie, then use iLevel as the tie breaker with smaller
-** iLevel values coming first.  In this way, if rScore is the same for all
-** SearchPoints, then iLevel becomes the deciding factor and the result
-** is a depth-first search, which is the desired default behavior.
-*/
-static int rtreeSearchPointCompare(
-  const RtreeSearchPoint *pA,
-  const RtreeSearchPoint *pB
-){
-  if( pA->rScore<pB->rScore ) return -1;
-  if( pA->rScore>pB->rScore ) return +1;
-  if( pA->iLevel<pB->iLevel ) return -1;
-  if( pA->iLevel>pB->iLevel ) return +1;
-  return 0;
-}
-
-/*
-** Interchange two search points in a cursor.
-*/
-static void rtreeSearchPointSwap(RtreeCursor *p, int i, int j){
-  RtreeSearchPoint t = p->aPoint[i];
-  assert( i<j );
-  p->aPoint[i] = p->aPoint[j];
-  p->aPoint[j] = t;
-  i++; j++;
-  if( i<RTREE_CACHE_SZ ){
-    if( j>=RTREE_CACHE_SZ ){
-      nodeRelease(RTREE_OF_CURSOR(p), p->aNode[i]);
-      p->aNode[i] = 0;
-    }else{
-      RtreeNode *pTemp = p->aNode[i];
-      p->aNode[i] = p->aNode[j];
-      p->aNode[j] = pTemp;
-    }
-  }
-}
-
-/*
-** Return the search point with the lowest current score.
-*/
-static RtreeSearchPoint *rtreeSearchPointFirst(RtreeCursor *pCur){
-  return pCur->bPoint ? &pCur->sPoint : pCur->nPoint ? pCur->aPoint : 0;
-}
-
-/*
-** Get the RtreeNode for the search point with the lowest score.
-*/
-static RtreeNode *rtreeNodeOfFirstSearchPoint(RtreeCursor *pCur, int *pRC){
-  tdsqlite3_int64 id;
-  int ii = 1 - pCur->bPoint;
-  assert( ii==0 || ii==1 );
-  assert( pCur->bPoint || pCur->nPoint );
-  if( pCur->aNode[ii]==0 ){
-    assert( pRC!=0 );
-    id = ii ? pCur->aPoint[0].id : pCur->sPoint.id;
-    *pRC = nodeAcquire(RTREE_OF_CURSOR(pCur), id, 0, &pCur->aNode[ii]);
-  }
-  return pCur->aNode[ii];
-}
-
-/*
-** Push a new element onto the priority queue
-*/
-static RtreeSearchPoint *rtreeEnqueue(
-  RtreeCursor *pCur,    /* The cursor */
-  RtreeDValue rScore,   /* Score for the new search point */
-  u8 iLevel             /* Level for the new search point */
-){
-  int i, j;
-  RtreeSearchPoint *pNew;
-  if( pCur->nPoint>=pCur->nPointAlloc ){
-    int nNew = pCur->nPointAlloc*2 + 8;
-    pNew = tdsqlite3_realloc64(pCur->aPoint, nNew*sizeof(pCur->aPoint[0]));
-    if( pNew==0 ) return 0;
-    pCur->aPoint = pNew;
-    pCur->nPointAlloc = nNew;
-  }
-  i = pCur->nPoint++;
-  pNew = pCur->aPoint + i;
-  pNew->rScore = rScore;
-  pNew->iLevel = iLevel;
-  assert( iLevel<=RTREE_MAX_DEPTH );
-  while( i>0 ){
-    RtreeSearchPoint *pParent;
-    j = (i-1)/2;
-    pParent = pCur->aPoint + j;
-    if( rtreeSearchPointCompare(pNew, pParent)>=0 ) break;
-    rtreeSearchPointSwap(pCur, j, i);
-    i = j;
-    pNew = pParent;
-  }
-  return pNew;
-}
-
-/*
-** Allocate a new RtreeSearchPoint and return a pointer to it.  Return
-** NULL if malloc fails.
-*/
-static RtreeSearchPoint *rtreeSearchPointNew(
-  RtreeCursor *pCur,    /* The cursor */
-  RtreeDValue rScore,   /* Score for the new search point */
-  u8 iLevel             /* Level for the new search point */
-){
-  RtreeSearchPoint *pNew, *pFirst;
-  pFirst = rtreeSearchPointFirst(pCur);
-  pCur->anQueue[iLevel]++;
-  if( pFirst==0
-   || pFirst->rScore>rScore 
-   || (pFirst->rScore==rScore && pFirst->iLevel>iLevel)
-  ){
-    if( pCur->bPoint ){
-      int ii;
-      pNew = rtreeEnqueue(pCur, rScore, iLevel);
-      if( pNew==0 ) return 0;
-      ii = (int)(pNew - pCur->aPoint) + 1;
-      if( ii<RTREE_CACHE_SZ ){
-        assert( pCur->aNode[ii]==0 );
-        pCur->aNode[ii] = pCur->aNode[0];
-      }else{
-        nodeRelease(RTREE_OF_CURSOR(pCur), pCur->aNode[0]);
-      }
-      pCur->aNode[0] = 0;
-      *pNew = pCur->sPoint;
-    }
-    pCur->sPoint.rScore = rScore;
-    pCur->sPoint.iLevel = iLevel;
-    pCur->bPoint = 1;
-    return &pCur->sPoint;
-  }else{
-    return rtreeEnqueue(pCur, rScore, iLevel);
-  }
-}
-
-#if 0
-/* Tracing routines for the RtreeSearchPoint queue */
-static void tracePoint(RtreeSearchPoint *p, int idx, RtreeCursor *pCur){
-  if( idx<0 ){ printf(" s"); }else{ printf("%2d", idx); }
-  printf(" %d.%05lld.%02d %g %d",
-    p->iLevel, p->id, p->iCell, p->rScore, p->eWithin
-  );
-  idx++;
-  if( idx<RTREE_CACHE_SZ ){
-    printf(" %p\n", pCur->aNode[idx]);
-  }else{
-    printf("\n");
-  }
-}
-static void traceQueue(RtreeCursor *pCur, const char *zPrefix){
-  int ii;
-  printf("=== %9s ", zPrefix);
-  if( pCur->bPoint ){
-    tracePoint(&pCur->sPoint, -1, pCur);
-  }
-  for(ii=0; ii<pCur->nPoint; ii++){
-    if( ii>0 || pCur->bPoint ) printf("              ");
-    tracePoint(&pCur->aPoint[ii], ii, pCur);
-  }
-}
-# define RTREE_QUEUE_TRACE(A,B) traceQueue(A,B)
-#else
-# define RTREE_QUEUE_TRACE(A,B)   /* no-op */
-#endif
-
-/* Remove the search point with the lowest current score.
-*/
-static void rtreeSearchPointPop(RtreeCursor *p){
-  int i, j, k, n;
-  i = 1 - p->bPoint;
-  assert( i==0 || i==1 );
-  if( p->aNode[i] ){
-    nodeRelease(RTREE_OF_CURSOR(p), p->aNode[i]);
-    p->aNode[i] = 0;
-  }
-  if( p->bPoint ){
-    p->anQueue[p->sPoint.iLevel]--;
-    p->bPoint = 0;
-  }else if( p->nPoint ){
-    p->anQueue[p->aPoint[0].iLevel]--;
-    n = --p->nPoint;
-    p->aPoint[0] = p->aPoint[n];
-    if( n<RTREE_CACHE_SZ-1 ){
-      p->aNode[1] = p->aNode[n+1];
-      p->aNode[n+1] = 0;
-    }
-    i = 0;
-    while( (j = i*2+1)<n ){
-      k = j+1;
-      if( k<n && rtreeSearchPointCompare(&p->aPoint[k], &p->aPoint[j])<0 ){
-        if( rtreeSearchPointCompare(&p->aPoint[k], &p->aPoint[i])<0 ){
-          rtreeSearchPointSwap(p, i, k);
-          i = k;
-        }else{
-          break;
-        }
-      }else{
-        if( rtreeSearchPointCompare(&p->aPoint[j], &p->aPoint[i])<0 ){
-          rtreeSearchPointSwap(p, i, j);
-          i = j;
-        }else{
-          break;
-        }
-      }
-    }
-  }
-}
-
-
-/*
-** Continue the search on cursor pCur until the front of the queue
-** contains an entry suitable for returning as a result-set row,
-** or until the RtreeSearchPoint queue is empty, indicating that the
-** query has completed.
-*/
-static int rtreeStepToLeaf(RtreeCursor *pCur){
-  RtreeSearchPoint *p;
-  Rtree *pRtree = RTREE_OF_CURSOR(pCur);
-  RtreeNode *pNode;
-  int eWithin;
-  int rc = SQLITE_OK;
-  int nCell;
-  int nConstraint = pCur->nConstraint;
-  int ii;
-  int eInt;
-  RtreeSearchPoint x;
-
-  eInt = pRtree->eCoordType==RTREE_COORD_INT32;
-  while( (p = rtreeSearchPointFirst(pCur))!=0 && p->iLevel>0 ){
-    u8 *pCellData;
-    pNode = rtreeNodeOfFirstSearchPoint(pCur, &rc);
-    if( rc ) return rc;
-    nCell = NCELL(pNode);
-    assert( nCell<200 );
-    pCellData = pNode->zData + (4+pRtree->nBytesPerCell*p->iCell);
-    while( p->iCell<nCell ){
-      tdsqlite3_rtree_dbl rScore = (tdsqlite3_rtree_dbl)-1;
-      eWithin = FULLY_WITHIN;
-      for(ii=0; ii<nConstraint; ii++){
-        RtreeConstraint *pConstraint = pCur->aConstraint + ii;
-        if( pConstraint->op>=RTREE_MATCH ){
-          rc = rtreeCallbackConstraint(pConstraint, eInt, pCellData, p,
-                                       &rScore, &eWithin);
-          if( rc ) return rc;
-        }else if( p->iLevel==1 ){
-          rtreeLeafConstraint(pConstraint, eInt, pCellData, &eWithin);
-        }else{
-          rtreeNonleafConstraint(pConstraint, eInt, pCellData, &eWithin);
-        }
-        if( eWithin==NOT_WITHIN ){
-          p->iCell++;
-          pCellData += pRtree->nBytesPerCell;
-          break;
-        }
-      }
-      if( eWithin==NOT_WITHIN ) continue;
-      p->iCell++;
-      x.iLevel = p->iLevel - 1;
-      if( x.iLevel ){
-        x.id = readInt64(pCellData);
-        for(ii=0; ii<pCur->nPoint; ii++){
-          if( pCur->aPoint[ii].id==x.id ){
-            RTREE_IS_CORRUPT(pRtree);
-            return SQLITE_CORRUPT_VTAB;
-          }
-        }
-        x.iCell = 0;
-      }else{
-        x.id = p->id;
-        x.iCell = p->iCell - 1;
-      }
-      if( p->iCell>=nCell ){
-        RTREE_QUEUE_TRACE(pCur, "POP-S:");
-        rtreeSearchPointPop(pCur);
-      }
-      if( rScore<RTREE_ZERO ) rScore = RTREE_ZERO;
-      p = rtreeSearchPointNew(pCur, rScore, x.iLevel);
-      if( p==0 ) return SQLITE_NOMEM;
-      p->eWithin = (u8)eWithin;
-      p->id = x.id;
-      p->iCell = x.iCell;
-      RTREE_QUEUE_TRACE(pCur, "PUSH-S:");
-      break;
-    }
-    if( p->iCell>=nCell ){
-      RTREE_QUEUE_TRACE(pCur, "POP-Se:");
-      rtreeSearchPointPop(pCur);
-    }
-  }
-  pCur->atEOF = p==0;
-  return SQLITE_OK;
-}
-
-/* 
-** Rtree virtual table module xNext method.
-*/
-static int rtreeNext(tdsqlite3_vtab_cursor *pVtabCursor){
-  RtreeCursor *pCsr = (RtreeCursor *)pVtabCursor;
-  int rc = SQLITE_OK;
-
-  /* Move to the next entry that matches the configured constraints. */
-  RTREE_QUEUE_TRACE(pCsr, "POP-Nx:");
-  if( pCsr->bAuxValid ){
-    pCsr->bAuxValid = 0;
-    tdsqlite3_reset(pCsr->pReadAux);
-  }
-  rtreeSearchPointPop(pCsr);
-  rc = rtreeStepToLeaf(pCsr);
-  return rc;
-}
-
-/* 
-** Rtree virtual table module xRowid method.
-*/
-static int rtreeRowid(tdsqlite3_vtab_cursor *pVtabCursor, sqlite_int64 *pRowid){
-  RtreeCursor *pCsr = (RtreeCursor *)pVtabCursor;
-  RtreeSearchPoint *p = rtreeSearchPointFirst(pCsr);
-  int rc = SQLITE_OK;
-  RtreeNode *pNode = rtreeNodeOfFirstSearchPoint(pCsr, &rc);
-  if( rc==SQLITE_OK && p ){
-    *pRowid = nodeGetRowid(RTREE_OF_CURSOR(pCsr), pNode, p->iCell);
-  }
-  return rc;
-}
-
-/* 
-** Rtree virtual table module xColumn method.
-*/
-static int rtreeColumn(tdsqlite3_vtab_cursor *cur, tdsqlite3_context *ctx, int i){
-  Rtree *pRtree = (Rtree *)cur->pVtab;
-  RtreeCursor *pCsr = (RtreeCursor *)cur;
-  RtreeSearchPoint *p = rtreeSearchPointFirst(pCsr);
-  RtreeCoord c;
-  int rc = SQLITE_OK;
-  RtreeNode *pNode = rtreeNodeOfFirstSearchPoint(pCsr, &rc);
-
-  if( rc ) return rc;
-  if( p==0 ) return SQLITE_OK;
-  if( i==0 ){
-    tdsqlite3_result_int64(ctx, nodeGetRowid(pRtree, pNode, p->iCell));
-  }else if( i<=pRtree->nDim2 ){
-    nodeGetCoord(pRtree, pNode, p->iCell, i-1, &c);
-#ifndef SQLITE_RTREE_INT_ONLY
-    if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
-      tdsqlite3_result_double(ctx, c.f);
-    }else
-#endif
-    {
-      assert( pRtree->eCoordType==RTREE_COORD_INT32 );
-      tdsqlite3_result_int(ctx, c.i);
-    }
-  }else{
-    if( !pCsr->bAuxValid ){
-      if( pCsr->pReadAux==0 ){
-        rc = tdsqlite3_prepare_v3(pRtree->db, pRtree->zReadAuxSql, -1, 0,
-                                &pCsr->pReadAux, 0);
-        if( rc ) return rc;
-      }
-      tdsqlite3_bind_int64(pCsr->pReadAux, 1, 
-          nodeGetRowid(pRtree, pNode, p->iCell));
-      rc = tdsqlite3_step(pCsr->pReadAux);
-      if( rc==SQLITE_ROW ){
-        pCsr->bAuxValid = 1;
-      }else{
-        tdsqlite3_reset(pCsr->pReadAux);
-        if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-        return rc;
-      }
-    }
-    tdsqlite3_result_value(ctx,
-         tdsqlite3_column_value(pCsr->pReadAux, i - pRtree->nDim2 + 1));
-  }  
-  return SQLITE_OK;
-}
-
-/* 
-** Use nodeAcquire() to obtain the leaf node containing the record with 
-** rowid iRowid. If successful, set *ppLeaf to point to the node and
-** return SQLITE_OK. If there is no such record in the table, set
-** *ppLeaf to 0 and return SQLITE_OK. If an error occurs, set *ppLeaf
-** to zero and return an SQLite error code.
-*/
-static int findLeafNode(
-  Rtree *pRtree,              /* RTree to search */
-  i64 iRowid,                 /* The rowid searching for */
-  RtreeNode **ppLeaf,         /* Write the node here */
-  tdsqlite3_int64 *piNode       /* Write the node-id here */
-){
-  int rc;
-  *ppLeaf = 0;
-  tdsqlite3_bind_int64(pRtree->pReadRowid, 1, iRowid);
-  if( tdsqlite3_step(pRtree->pReadRowid)==SQLITE_ROW ){
-    i64 iNode = tdsqlite3_column_int64(pRtree->pReadRowid, 0);
-    if( piNode ) *piNode = iNode;
-    rc = nodeAcquire(pRtree, iNode, 0, ppLeaf);
-    tdsqlite3_reset(pRtree->pReadRowid);
-  }else{
-    rc = tdsqlite3_reset(pRtree->pReadRowid);
-  }
-  return rc;
-}
-
-/*
-** This function is called to configure the RtreeConstraint object passed
-** as the second argument for a MATCH constraint. The value passed as the
-** first argument to this function is the right-hand operand to the MATCH
-** operator.
-*/
-static int deserializeGeometry(tdsqlite3_value *pValue, RtreeConstraint *pCons){
-  RtreeMatchArg *pBlob, *pSrc;       /* BLOB returned by geometry function */
-  tdsqlite3_rtree_query_info *pInfo;   /* Callback information */
-
-  pSrc = tdsqlite3_value_pointer(pValue, "RtreeMatchArg");
-  if( pSrc==0 ) return SQLITE_ERROR;
-  pInfo = (tdsqlite3_rtree_query_info*)
-                tdsqlite3_malloc64( sizeof(*pInfo)+pSrc->iSize );
-  if( !pInfo ) return SQLITE_NOMEM;
-  memset(pInfo, 0, sizeof(*pInfo));
-  pBlob = (RtreeMatchArg*)&pInfo[1];
-  memcpy(pBlob, pSrc, pSrc->iSize);
-  pInfo->pContext = pBlob->cb.pContext;
-  pInfo->nParam = pBlob->nParam;
-  pInfo->aParam = pBlob->aParam;
-  pInfo->apSqlParam = pBlob->apSqlParam;
-
-  if( pBlob->cb.xGeom ){
-    pCons->u.xGeom = pBlob->cb.xGeom;
-  }else{
-    pCons->op = RTREE_QUERY;
-    pCons->u.xQueryFunc = pBlob->cb.xQueryFunc;
-  }
-  pCons->pInfo = pInfo;
-  return SQLITE_OK;
-}
-
-/* 
-** Rtree virtual table module xFilter method.
-*/
-static int rtreeFilter(
-  tdsqlite3_vtab_cursor *pVtabCursor, 
-  int idxNum, const char *idxStr,
-  int argc, tdsqlite3_value **argv
-){
-  Rtree *pRtree = (Rtree *)pVtabCursor->pVtab;
-  RtreeCursor *pCsr = (RtreeCursor *)pVtabCursor;
-  RtreeNode *pRoot = 0;
-  int ii;
-  int rc = SQLITE_OK;
-  int iCell = 0;
-
-  rtreeReference(pRtree);
-
-  /* Reset the cursor to the same state as rtreeOpen() leaves it in. */
-  resetCursor(pCsr);
-
-  pCsr->iStrategy = idxNum;
-  if( idxNum==1 ){
-    /* Special case - lookup by rowid. */
-    RtreeNode *pLeaf;        /* Leaf on which the required cell resides */
-    RtreeSearchPoint *p;     /* Search point for the leaf */
-    i64 iRowid = tdsqlite3_value_int64(argv[0]);
-    i64 iNode = 0;
-    int eType = tdsqlite3_value_numeric_type(argv[0]);
-    if( eType==SQLITE_INTEGER
-     || (eType==SQLITE_FLOAT && tdsqlite3_value_double(argv[0])==iRowid)
-    ){
-      rc = findLeafNode(pRtree, iRowid, &pLeaf, &iNode);
-    }else{
-      rc = SQLITE_OK;
-      pLeaf = 0;
-    }
-    if( rc==SQLITE_OK && pLeaf!=0 ){
-      p = rtreeSearchPointNew(pCsr, RTREE_ZERO, 0);
-      assert( p!=0 );  /* Always returns pCsr->sPoint */
-      pCsr->aNode[0] = pLeaf;
-      p->id = iNode;
-      p->eWithin = PARTLY_WITHIN;
-      rc = nodeRowidIndex(pRtree, pLeaf, iRowid, &iCell);
-      p->iCell = (u8)iCell;
-      RTREE_QUEUE_TRACE(pCsr, "PUSH-F1:");
-    }else{
-      pCsr->atEOF = 1;
-    }
-  }else{
-    /* Normal case - r-tree scan. Set up the RtreeCursor.aConstraint array 
-    ** with the configured constraints. 
-    */
-    rc = nodeAcquire(pRtree, 1, 0, &pRoot);
-    if( rc==SQLITE_OK && argc>0 ){
-      pCsr->aConstraint = tdsqlite3_malloc64(sizeof(RtreeConstraint)*argc);
-      pCsr->nConstraint = argc;
-      if( !pCsr->aConstraint ){
-        rc = SQLITE_NOMEM;
-      }else{
-        memset(pCsr->aConstraint, 0, sizeof(RtreeConstraint)*argc);
-        memset(pCsr->anQueue, 0, sizeof(u32)*(pRtree->iDepth + 1));
-        assert( (idxStr==0 && argc==0)
-                || (idxStr && (int)strlen(idxStr)==argc*2) );
-        for(ii=0; ii<argc; ii++){
-          RtreeConstraint *p = &pCsr->aConstraint[ii];
-          int eType = tdsqlite3_value_numeric_type(argv[ii]);
-          p->op = idxStr[ii*2];
-          p->iCoord = idxStr[ii*2+1]-'0';
-          if( p->op>=RTREE_MATCH ){
-            /* A MATCH operator. The right-hand-side must be a blob that
-            ** can be cast into an RtreeMatchArg object. One created using
-            ** an tdsqlite3_rtree_geometry_callback() SQL user function.
-            */
-            rc = deserializeGeometry(argv[ii], p);
-            if( rc!=SQLITE_OK ){
-              break;
-            }
-            p->pInfo->nCoord = pRtree->nDim2;
-            p->pInfo->anQueue = pCsr->anQueue;
-            p->pInfo->mxLevel = pRtree->iDepth + 1;
-          }else if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-#ifdef SQLITE_RTREE_INT_ONLY
-            p->u.rValue = tdsqlite3_value_int64(argv[ii]);
-#else
-            p->u.rValue = tdsqlite3_value_double(argv[ii]);
-#endif
-          }else{
-            p->u.rValue = RTREE_ZERO;
-            if( eType==SQLITE_NULL ){
-              p->op = RTREE_FALSE;
-            }else if( p->op==RTREE_LT || p->op==RTREE_LE ){
-              p->op = RTREE_TRUE;
-            }else{
-              p->op = RTREE_FALSE;
-            }
-          }
-        }
-      }
-    }
-    if( rc==SQLITE_OK ){
-      RtreeSearchPoint *pNew;
-      pNew = rtreeSearchPointNew(pCsr, RTREE_ZERO, (u8)(pRtree->iDepth+1));
-      if( pNew==0 ) return SQLITE_NOMEM;
-      pNew->id = 1;
-      pNew->iCell = 0;
-      pNew->eWithin = PARTLY_WITHIN;
-      assert( pCsr->bPoint==1 );
-      pCsr->aNode[0] = pRoot;
-      pRoot = 0;
-      RTREE_QUEUE_TRACE(pCsr, "PUSH-Fm:");
-      rc = rtreeStepToLeaf(pCsr);
-    }
-  }
-
-  nodeRelease(pRtree, pRoot);
-  rtreeRelease(pRtree);
-  return rc;
-}
-
-/*
-** Rtree virtual table module xBestIndex method. There are three
-** table scan strategies to choose from (in order from most to 
-** least desirable):
-**
-**   idxNum     idxStr        Strategy
-**   ------------------------------------------------
-**     1        Unused        Direct lookup by rowid.
-**     2        See below     R-tree query or full-table scan.
-**   ------------------------------------------------
-**
-** If strategy 1 is used, then idxStr is not meaningful. If strategy
-** 2 is used, idxStr is formatted to contain 2 bytes for each 
-** constraint used. The first two bytes of idxStr correspond to 
-** the constraint in tdsqlite3_index_info.aConstraintUsage[] with
-** (argvIndex==1) etc.
-**
-** The first of each pair of bytes in idxStr identifies the constraint
-** operator as follows:
-**
-**   Operator    Byte Value
-**   ----------------------
-**      =        0x41 ('A')
-**     <=        0x42 ('B')
-**      <        0x43 ('C')
-**     >=        0x44 ('D')
-**      >        0x45 ('E')
-**   MATCH       0x46 ('F')
-**   ----------------------
-**
-** The second of each pair of bytes identifies the coordinate column
-** to which the constraint applies. The leftmost coordinate column
-** is 'a', the second from the left 'b' etc.
-*/
-static int rtreeBestIndex(tdsqlite3_vtab *tab, tdsqlite3_index_info *pIdxInfo){
-  Rtree *pRtree = (Rtree*)tab;
-  int rc = SQLITE_OK;
-  int ii;
-  int bMatch = 0;                 /* True if there exists a MATCH constraint */
-  i64 nRow;                       /* Estimated rows returned by this scan */
-
-  int iIdx = 0;
-  char zIdxStr[RTREE_MAX_DIMENSIONS*8+1];
-  memset(zIdxStr, 0, sizeof(zIdxStr));
-
-  /* Check if there exists a MATCH constraint - even an unusable one. If there
-  ** is, do not consider the lookup-by-rowid plan as using such a plan would
-  ** require the VDBE to evaluate the MATCH constraint, which is not currently
-  ** possible. */
-  for(ii=0; ii<pIdxInfo->nConstraint; ii++){
-    if( pIdxInfo->aConstraint[ii].op==SQLITE_INDEX_CONSTRAINT_MATCH ){
-      bMatch = 1;
-    }
-  }
-
-  assert( pIdxInfo->idxStr==0 );
-  for(ii=0; ii<pIdxInfo->nConstraint && iIdx<(int)(sizeof(zIdxStr)-1); ii++){
-    struct tdsqlite3_index_constraint *p = &pIdxInfo->aConstraint[ii];
-
-    if( bMatch==0 && p->usable 
-     && p->iColumn==0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ 
-    ){
-      /* We have an equality constraint on the rowid. Use strategy 1. */
-      int jj;
-      for(jj=0; jj<ii; jj++){
-        pIdxInfo->aConstraintUsage[jj].argvIndex = 0;
-        pIdxInfo->aConstraintUsage[jj].omit = 0;
-      }
-      pIdxInfo->idxNum = 1;
-      pIdxInfo->aConstraintUsage[ii].argvIndex = 1;
-      pIdxInfo->aConstraintUsage[jj].omit = 1;
-
-      /* This strategy involves a two rowid lookups on an B-Tree structures
-      ** and then a linear search of an R-Tree node. This should be 
-      ** considered almost as quick as a direct rowid lookup (for which 
-      ** sqlite uses an internal cost of 0.0). It is expected to return
-      ** a single row.
-      */ 
-      pIdxInfo->estimatedCost = 30.0;
-      pIdxInfo->estimatedRows = 1;
-      pIdxInfo->idxFlags = SQLITE_INDEX_SCAN_UNIQUE;
-      return SQLITE_OK;
-    }
-
-    if( p->usable
-    && ((p->iColumn>0 && p->iColumn<=pRtree->nDim2)
-        || p->op==SQLITE_INDEX_CONSTRAINT_MATCH)
-    ){
-      u8 op;
-      switch( p->op ){
-        case SQLITE_INDEX_CONSTRAINT_EQ:    op = RTREE_EQ;    break;
-        case SQLITE_INDEX_CONSTRAINT_GT:    op = RTREE_GT;    break;
-        case SQLITE_INDEX_CONSTRAINT_LE:    op = RTREE_LE;    break;
-        case SQLITE_INDEX_CONSTRAINT_LT:    op = RTREE_LT;    break;
-        case SQLITE_INDEX_CONSTRAINT_GE:    op = RTREE_GE;    break;
-        case SQLITE_INDEX_CONSTRAINT_MATCH: op = RTREE_MATCH; break;
-        default:                            op = 0;           break;
-      }
-      if( op ){
-        zIdxStr[iIdx++] = op;
-        zIdxStr[iIdx++] = (char)(p->iColumn - 1 + '0');
-        pIdxInfo->aConstraintUsage[ii].argvIndex = (iIdx/2);
-        pIdxInfo->aConstraintUsage[ii].omit = 1;
-      }
-    }
-  }
-
-  pIdxInfo->idxNum = 2;
-  pIdxInfo->needToFreeIdxStr = 1;
-  if( iIdx>0 && 0==(pIdxInfo->idxStr = tdsqlite3_mprintf("%s", zIdxStr)) ){
-    return SQLITE_NOMEM;
-  }
-
-  nRow = pRtree->nRowEst >> (iIdx/2);
-  pIdxInfo->estimatedCost = (double)6.0 * (double)nRow;
-  pIdxInfo->estimatedRows = nRow;
-
-  return rc;
-}
-
-/*
-** Return the N-dimensional volumn of the cell stored in *p.
-*/
-static RtreeDValue cellArea(Rtree *pRtree, RtreeCell *p){
-  RtreeDValue area = (RtreeDValue)1;
-  assert( pRtree->nDim>=1 && pRtree->nDim<=5 );
-#ifndef SQLITE_RTREE_INT_ONLY
-  if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
-    switch( pRtree->nDim ){
-      case 5:  area  = p->aCoord[9].f - p->aCoord[8].f;
-      case 4:  area *= p->aCoord[7].f - p->aCoord[6].f;
-      case 3:  area *= p->aCoord[5].f - p->aCoord[4].f;
-      case 2:  area *= p->aCoord[3].f - p->aCoord[2].f;
-      default: area *= p->aCoord[1].f - p->aCoord[0].f;
-    }
-  }else
-#endif
-  {
-    switch( pRtree->nDim ){
-      case 5:  area  = (i64)p->aCoord[9].i - (i64)p->aCoord[8].i;
-      case 4:  area *= (i64)p->aCoord[7].i - (i64)p->aCoord[6].i;
-      case 3:  area *= (i64)p->aCoord[5].i - (i64)p->aCoord[4].i;
-      case 2:  area *= (i64)p->aCoord[3].i - (i64)p->aCoord[2].i;
-      default: area *= (i64)p->aCoord[1].i - (i64)p->aCoord[0].i;
-    }
-  }
-  return area;
-}
-
-/*
-** Return the margin length of cell p. The margin length is the sum
-** of the objects size in each dimension.
-*/
-static RtreeDValue cellMargin(Rtree *pRtree, RtreeCell *p){
-  RtreeDValue margin = 0;
-  int ii = pRtree->nDim2 - 2;
-  do{
-    margin += (DCOORD(p->aCoord[ii+1]) - DCOORD(p->aCoord[ii]));
-    ii -= 2;
-  }while( ii>=0 );
-  return margin;
-}
-
-/*
-** Store the union of cells p1 and p2 in p1.
-*/
-static void cellUnion(Rtree *pRtree, RtreeCell *p1, RtreeCell *p2){
-  int ii = 0;
-  if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
-    do{
-      p1->aCoord[ii].f = MIN(p1->aCoord[ii].f, p2->aCoord[ii].f);
-      p1->aCoord[ii+1].f = MAX(p1->aCoord[ii+1].f, p2->aCoord[ii+1].f);
-      ii += 2;
-    }while( ii<pRtree->nDim2 );
-  }else{
-    do{
-      p1->aCoord[ii].i = MIN(p1->aCoord[ii].i, p2->aCoord[ii].i);
-      p1->aCoord[ii+1].i = MAX(p1->aCoord[ii+1].i, p2->aCoord[ii+1].i);
-      ii += 2;
-    }while( ii<pRtree->nDim2 );
-  }
-}
-
-/*
-** Return true if the area covered by p2 is a subset of the area covered
-** by p1. False otherwise.
-*/
-static int cellContains(Rtree *pRtree, RtreeCell *p1, RtreeCell *p2){
-  int ii;
-  int isInt = (pRtree->eCoordType==RTREE_COORD_INT32);
-  for(ii=0; ii<pRtree->nDim2; ii+=2){
-    RtreeCoord *a1 = &p1->aCoord[ii];
-    RtreeCoord *a2 = &p2->aCoord[ii];
-    if( (!isInt && (a2[0].f<a1[0].f || a2[1].f>a1[1].f)) 
-     || ( isInt && (a2[0].i<a1[0].i || a2[1].i>a1[1].i)) 
-    ){
-      return 0;
-    }
-  }
-  return 1;
-}
-
-/*
-** Return the amount cell p would grow by if it were unioned with pCell.
-*/
-static RtreeDValue cellGrowth(Rtree *pRtree, RtreeCell *p, RtreeCell *pCell){
-  RtreeDValue area;
-  RtreeCell cell;
-  memcpy(&cell, p, sizeof(RtreeCell));
-  area = cellArea(pRtree, &cell);
-  cellUnion(pRtree, &cell, pCell);
-  return (cellArea(pRtree, &cell)-area);
-}
-
-static RtreeDValue cellOverlap(
-  Rtree *pRtree, 
-  RtreeCell *p, 
-  RtreeCell *aCell, 
-  int nCell
-){
-  int ii;
-  RtreeDValue overlap = RTREE_ZERO;
-  for(ii=0; ii<nCell; ii++){
-    int jj;
-    RtreeDValue o = (RtreeDValue)1;
-    for(jj=0; jj<pRtree->nDim2; jj+=2){
-      RtreeDValue x1, x2;
-      x1 = MAX(DCOORD(p->aCoord[jj]), DCOORD(aCell[ii].aCoord[jj]));
-      x2 = MIN(DCOORD(p->aCoord[jj+1]), DCOORD(aCell[ii].aCoord[jj+1]));
-      if( x2<x1 ){
-        o = (RtreeDValue)0;
-        break;
-      }else{
-        o = o * (x2-x1);
-      }
-    }
-    overlap += o;
-  }
-  return overlap;
-}
-
-
-/*
-** This function implements the ChooseLeaf algorithm from Gutman[84].
-** ChooseSubTree in r*tree terminology.
-*/
-static int ChooseLeaf(
-  Rtree *pRtree,               /* Rtree table */
-  RtreeCell *pCell,            /* Cell to insert into rtree */
-  int iHeight,                 /* Height of sub-tree rooted at pCell */
-  RtreeNode **ppLeaf           /* OUT: Selected leaf page */
-){
-  int rc;
-  int ii;
-  RtreeNode *pNode = 0;
-  rc = nodeAcquire(pRtree, 1, 0, &pNode);
-
-  for(ii=0; rc==SQLITE_OK && ii<(pRtree->iDepth-iHeight); ii++){
-    int iCell;
-    tdsqlite3_int64 iBest = 0;
-
-    RtreeDValue fMinGrowth = RTREE_ZERO;
-    RtreeDValue fMinArea = RTREE_ZERO;
-
-    int nCell = NCELL(pNode);
-    RtreeCell cell;
-    RtreeNode *pChild;
-
-    RtreeCell *aCell = 0;
-
-    /* Select the child node which will be enlarged the least if pCell
-    ** is inserted into it. Resolve ties by choosing the entry with
-    ** the smallest area.
-    */
-    for(iCell=0; iCell<nCell; iCell++){
-      int bBest = 0;
-      RtreeDValue growth;
-      RtreeDValue area;
-      nodeGetCell(pRtree, pNode, iCell, &cell);
-      growth = cellGrowth(pRtree, &cell, pCell);
-      area = cellArea(pRtree, &cell);
-      if( iCell==0||growth<fMinGrowth||(growth==fMinGrowth && area<fMinArea) ){
-        bBest = 1;
-      }
-      if( bBest ){
-        fMinGrowth = growth;
-        fMinArea = area;
-        iBest = cell.iRowid;
-      }
-    }
-
-    tdsqlite3_free(aCell);
-    rc = nodeAcquire(pRtree, iBest, pNode, &pChild);
-    nodeRelease(pRtree, pNode);
-    pNode = pChild;
-  }
-
-  *ppLeaf = pNode;
-  return rc;
-}
-
-/*
-** A cell with the same content as pCell has just been inserted into
-** the node pNode. This function updates the bounding box cells in
-** all ancestor elements.
-*/
-static int AdjustTree(
-  Rtree *pRtree,                    /* Rtree table */
-  RtreeNode *pNode,                 /* Adjust ancestry of this node. */
-  RtreeCell *pCell                  /* This cell was just inserted */
-){
-  RtreeNode *p = pNode;
-  int cnt = 0;
-  while( p->pParent ){
-    RtreeNode *pParent = p->pParent;
-    RtreeCell cell;
-    int iCell;
-
-    if( (++cnt)>1000 || nodeParentIndex(pRtree, p, &iCell)  ){
-      RTREE_IS_CORRUPT(pRtree);
-      return SQLITE_CORRUPT_VTAB;
-    }
-
-    nodeGetCell(pRtree, pParent, iCell, &cell);
-    if( !cellContains(pRtree, &cell, pCell) ){
-      cellUnion(pRtree, &cell, pCell);
-      nodeOverwriteCell(pRtree, pParent, &cell, iCell);
-    }
- 
-    p = pParent;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Write mapping (iRowid->iNode) to the <rtree>_rowid table.
-*/
-static int rowidWrite(Rtree *pRtree, tdsqlite3_int64 iRowid, tdsqlite3_int64 iNode){
-  tdsqlite3_bind_int64(pRtree->pWriteRowid, 1, iRowid);
-  tdsqlite3_bind_int64(pRtree->pWriteRowid, 2, iNode);
-  tdsqlite3_step(pRtree->pWriteRowid);
-  return tdsqlite3_reset(pRtree->pWriteRowid);
-}
-
-/*
-** Write mapping (iNode->iPar) to the <rtree>_parent table.
-*/
-static int parentWrite(Rtree *pRtree, tdsqlite3_int64 iNode, tdsqlite3_int64 iPar){
-  tdsqlite3_bind_int64(pRtree->pWriteParent, 1, iNode);
-  tdsqlite3_bind_int64(pRtree->pWriteParent, 2, iPar);
-  tdsqlite3_step(pRtree->pWriteParent);
-  return tdsqlite3_reset(pRtree->pWriteParent);
-}
-
-static int rtreeInsertCell(Rtree *, RtreeNode *, RtreeCell *, int);
-
-
-/*
-** Arguments aIdx, aDistance and aSpare all point to arrays of size
-** nIdx. The aIdx array contains the set of integers from 0 to 
-** (nIdx-1) in no particular order. This function sorts the values
-** in aIdx according to the indexed values in aDistance. For
-** example, assuming the inputs:
-**
-**   aIdx      = { 0,   1,   2,   3 }
-**   aDistance = { 5.0, 2.0, 7.0, 6.0 }
-**
-** this function sets the aIdx array to contain:
-**
-**   aIdx      = { 0,   1,   2,   3 }
-**
-** The aSpare array is used as temporary working space by the
-** sorting algorithm.
-*/
-static void SortByDistance(
-  int *aIdx, 
-  int nIdx, 
-  RtreeDValue *aDistance, 
-  int *aSpare
-){
-  if( nIdx>1 ){
-    int iLeft = 0;
-    int iRight = 0;
-
-    int nLeft = nIdx/2;
-    int nRight = nIdx-nLeft;
-    int *aLeft = aIdx;
-    int *aRight = &aIdx[nLeft];
-
-    SortByDistance(aLeft, nLeft, aDistance, aSpare);
-    SortByDistance(aRight, nRight, aDistance, aSpare);
-
-    memcpy(aSpare, aLeft, sizeof(int)*nLeft);
-    aLeft = aSpare;
-
-    while( iLeft<nLeft || iRight<nRight ){
-      if( iLeft==nLeft ){
-        aIdx[iLeft+iRight] = aRight[iRight];
-        iRight++;
-      }else if( iRight==nRight ){
-        aIdx[iLeft+iRight] = aLeft[iLeft];
-        iLeft++;
-      }else{
-        RtreeDValue fLeft = aDistance[aLeft[iLeft]];
-        RtreeDValue fRight = aDistance[aRight[iRight]];
-        if( fLeft<fRight ){
-          aIdx[iLeft+iRight] = aLeft[iLeft];
-          iLeft++;
-        }else{
-          aIdx[iLeft+iRight] = aRight[iRight];
-          iRight++;
-        }
-      }
-    }
-
-#if 0
-    /* Check that the sort worked */
-    {
-      int jj;
-      for(jj=1; jj<nIdx; jj++){
-        RtreeDValue left = aDistance[aIdx[jj-1]];
-        RtreeDValue right = aDistance[aIdx[jj]];
-        assert( left<=right );
-      }
-    }
-#endif
-  }
-}
-
-/*
-** Arguments aIdx, aCell and aSpare all point to arrays of size
-** nIdx. The aIdx array contains the set of integers from 0 to 
-** (nIdx-1) in no particular order. This function sorts the values
-** in aIdx according to dimension iDim of the cells in aCell. The
-** minimum value of dimension iDim is considered first, the
-** maximum used to break ties.
-**
-** The aSpare array is used as temporary working space by the
-** sorting algorithm.
-*/
-static void SortByDimension(
-  Rtree *pRtree,
-  int *aIdx, 
-  int nIdx, 
-  int iDim, 
-  RtreeCell *aCell, 
-  int *aSpare
-){
-  if( nIdx>1 ){
-
-    int iLeft = 0;
-    int iRight = 0;
-
-    int nLeft = nIdx/2;
-    int nRight = nIdx-nLeft;
-    int *aLeft = aIdx;
-    int *aRight = &aIdx[nLeft];
-
-    SortByDimension(pRtree, aLeft, nLeft, iDim, aCell, aSpare);
-    SortByDimension(pRtree, aRight, nRight, iDim, aCell, aSpare);
-
-    memcpy(aSpare, aLeft, sizeof(int)*nLeft);
-    aLeft = aSpare;
-    while( iLeft<nLeft || iRight<nRight ){
-      RtreeDValue xleft1 = DCOORD(aCell[aLeft[iLeft]].aCoord[iDim*2]);
-      RtreeDValue xleft2 = DCOORD(aCell[aLeft[iLeft]].aCoord[iDim*2+1]);
-      RtreeDValue xright1 = DCOORD(aCell[aRight[iRight]].aCoord[iDim*2]);
-      RtreeDValue xright2 = DCOORD(aCell[aRight[iRight]].aCoord[iDim*2+1]);
-      if( (iLeft!=nLeft) && ((iRight==nRight)
-       || (xleft1<xright1)
-       || (xleft1==xright1 && xleft2<xright2)
-      )){
-        aIdx[iLeft+iRight] = aLeft[iLeft];
-        iLeft++;
-      }else{
-        aIdx[iLeft+iRight] = aRight[iRight];
-        iRight++;
-      }
-    }
-
-#if 0
-    /* Check that the sort worked */
-    {
-      int jj;
-      for(jj=1; jj<nIdx; jj++){
-        RtreeDValue xleft1 = aCell[aIdx[jj-1]].aCoord[iDim*2];
-        RtreeDValue xleft2 = aCell[aIdx[jj-1]].aCoord[iDim*2+1];
-        RtreeDValue xright1 = aCell[aIdx[jj]].aCoord[iDim*2];
-        RtreeDValue xright2 = aCell[aIdx[jj]].aCoord[iDim*2+1];
-        assert( xleft1<=xright1 && (xleft1<xright1 || xleft2<=xright2) );
-      }
-    }
-#endif
-  }
-}
-
-/*
-** Implementation of the R*-tree variant of SplitNode from Beckman[1990].
-*/
-static int splitNodeStartree(
-  Rtree *pRtree,
-  RtreeCell *aCell,
-  int nCell,
-  RtreeNode *pLeft,
-  RtreeNode *pRight,
-  RtreeCell *pBboxLeft,
-  RtreeCell *pBboxRight
-){
-  int **aaSorted;
-  int *aSpare;
-  int ii;
-
-  int iBestDim = 0;
-  int iBestSplit = 0;
-  RtreeDValue fBestMargin = RTREE_ZERO;
-
-  tdsqlite3_int64 nByte = (pRtree->nDim+1)*(sizeof(int*)+nCell*sizeof(int));
-
-  aaSorted = (int **)tdsqlite3_malloc64(nByte);
-  if( !aaSorted ){
-    return SQLITE_NOMEM;
-  }
-
-  aSpare = &((int *)&aaSorted[pRtree->nDim])[pRtree->nDim*nCell];
-  memset(aaSorted, 0, nByte);
-  for(ii=0; ii<pRtree->nDim; ii++){
-    int jj;
-    aaSorted[ii] = &((int *)&aaSorted[pRtree->nDim])[ii*nCell];
-    for(jj=0; jj<nCell; jj++){
-      aaSorted[ii][jj] = jj;
-    }
-    SortByDimension(pRtree, aaSorted[ii], nCell, ii, aCell, aSpare);
-  }
-
-  for(ii=0; ii<pRtree->nDim; ii++){
-    RtreeDValue margin = RTREE_ZERO;
-    RtreeDValue fBestOverlap = RTREE_ZERO;
-    RtreeDValue fBestArea = RTREE_ZERO;
-    int iBestLeft = 0;
-    int nLeft;
-
-    for(
-      nLeft=RTREE_MINCELLS(pRtree); 
-      nLeft<=(nCell-RTREE_MINCELLS(pRtree)); 
-      nLeft++
-    ){
-      RtreeCell left;
-      RtreeCell right;
-      int kk;
-      RtreeDValue overlap;
-      RtreeDValue area;
-
-      memcpy(&left, &aCell[aaSorted[ii][0]], sizeof(RtreeCell));
-      memcpy(&right, &aCell[aaSorted[ii][nCell-1]], sizeof(RtreeCell));
-      for(kk=1; kk<(nCell-1); kk++){
-        if( kk<nLeft ){
-          cellUnion(pRtree, &left, &aCell[aaSorted[ii][kk]]);
-        }else{
-          cellUnion(pRtree, &right, &aCell[aaSorted[ii][kk]]);
-        }
-      }
-      margin += cellMargin(pRtree, &left);
-      margin += cellMargin(pRtree, &right);
-      overlap = cellOverlap(pRtree, &left, &right, 1);
-      area = cellArea(pRtree, &left) + cellArea(pRtree, &right);
-      if( (nLeft==RTREE_MINCELLS(pRtree))
-       || (overlap<fBestOverlap)
-       || (overlap==fBestOverlap && area<fBestArea)
-      ){
-        iBestLeft = nLeft;
-        fBestOverlap = overlap;
-        fBestArea = area;
-      }
-    }
-
-    if( ii==0 || margin<fBestMargin ){
-      iBestDim = ii;
-      fBestMargin = margin;
-      iBestSplit = iBestLeft;
-    }
-  }
-
-  memcpy(pBboxLeft, &aCell[aaSorted[iBestDim][0]], sizeof(RtreeCell));
-  memcpy(pBboxRight, &aCell[aaSorted[iBestDim][iBestSplit]], sizeof(RtreeCell));
-  for(ii=0; ii<nCell; ii++){
-    RtreeNode *pTarget = (ii<iBestSplit)?pLeft:pRight;
-    RtreeCell *pBbox = (ii<iBestSplit)?pBboxLeft:pBboxRight;
-    RtreeCell *pCell = &aCell[aaSorted[iBestDim][ii]];
-    nodeInsertCell(pRtree, pTarget, pCell);
-    cellUnion(pRtree, pBbox, pCell);
-  }
-
-  tdsqlite3_free(aaSorted);
-  return SQLITE_OK;
-}
-
-
-static int updateMapping(
-  Rtree *pRtree, 
-  i64 iRowid, 
-  RtreeNode *pNode, 
-  int iHeight
-){
-  int (*xSetMapping)(Rtree *, tdsqlite3_int64, tdsqlite3_int64);
-  xSetMapping = ((iHeight==0)?rowidWrite:parentWrite);
-  if( iHeight>0 ){
-    RtreeNode *pChild = nodeHashLookup(pRtree, iRowid);
-    if( pChild ){
-      nodeRelease(pRtree, pChild->pParent);
-      nodeReference(pNode);
-      pChild->pParent = pNode;
-    }
-  }
-  return xSetMapping(pRtree, iRowid, pNode->iNode);
-}
-
-static int SplitNode(
-  Rtree *pRtree,
-  RtreeNode *pNode,
-  RtreeCell *pCell,
-  int iHeight
-){
-  int i;
-  int newCellIsRight = 0;
-
-  int rc = SQLITE_OK;
-  int nCell = NCELL(pNode);
-  RtreeCell *aCell;
-  int *aiUsed;
-
-  RtreeNode *pLeft = 0;
-  RtreeNode *pRight = 0;
-
-  RtreeCell leftbbox;
-  RtreeCell rightbbox;
-
-  /* Allocate an array and populate it with a copy of pCell and 
-  ** all cells from node pLeft. Then zero the original node.
-  */
-  aCell = tdsqlite3_malloc64((sizeof(RtreeCell)+sizeof(int))*(nCell+1));
-  if( !aCell ){
-    rc = SQLITE_NOMEM;
-    goto splitnode_out;
-  }
-  aiUsed = (int *)&aCell[nCell+1];
-  memset(aiUsed, 0, sizeof(int)*(nCell+1));
-  for(i=0; i<nCell; i++){
-    nodeGetCell(pRtree, pNode, i, &aCell[i]);
-  }
-  nodeZero(pRtree, pNode);
-  memcpy(&aCell[nCell], pCell, sizeof(RtreeCell));
-  nCell++;
-
-  if( pNode->iNode==1 ){
-    pRight = nodeNew(pRtree, pNode);
-    pLeft = nodeNew(pRtree, pNode);
-    pRtree->iDepth++;
-    pNode->isDirty = 1;
-    writeInt16(pNode->zData, pRtree->iDepth);
-  }else{
-    pLeft = pNode;
-    pRight = nodeNew(pRtree, pLeft->pParent);
-    pLeft->nRef++;
-  }
-
-  if( !pLeft || !pRight ){
-    rc = SQLITE_NOMEM;
-    goto splitnode_out;
-  }
-
-  memset(pLeft->zData, 0, pRtree->iNodeSize);
-  memset(pRight->zData, 0, pRtree->iNodeSize);
-
-  rc = splitNodeStartree(pRtree, aCell, nCell, pLeft, pRight,
-                         &leftbbox, &rightbbox);
-  if( rc!=SQLITE_OK ){
-    goto splitnode_out;
-  }
-
-  /* Ensure both child nodes have node numbers assigned to them by calling
-  ** nodeWrite(). Node pRight always needs a node number, as it was created
-  ** by nodeNew() above. But node pLeft sometimes already has a node number.
-  ** In this case avoid the all to nodeWrite().
-  */
-  if( SQLITE_OK!=(rc = nodeWrite(pRtree, pRight))
-   || (0==pLeft->iNode && SQLITE_OK!=(rc = nodeWrite(pRtree, pLeft)))
-  ){
-    goto splitnode_out;
-  }
-
-  rightbbox.iRowid = pRight->iNode;
-  leftbbox.iRowid = pLeft->iNode;
-
-  if( pNode->iNode==1 ){
-    rc = rtreeInsertCell(pRtree, pLeft->pParent, &leftbbox, iHeight+1);
-    if( rc!=SQLITE_OK ){
-      goto splitnode_out;
-    }
-  }else{
-    RtreeNode *pParent = pLeft->pParent;
-    int iCell;
-    rc = nodeParentIndex(pRtree, pLeft, &iCell);
-    if( rc==SQLITE_OK ){
-      nodeOverwriteCell(pRtree, pParent, &leftbbox, iCell);
-      rc = AdjustTree(pRtree, pParent, &leftbbox);
-    }
-    if( rc!=SQLITE_OK ){
-      goto splitnode_out;
-    }
-  }
-  if( (rc = rtreeInsertCell(pRtree, pRight->pParent, &rightbbox, iHeight+1)) ){
-    goto splitnode_out;
-  }
-
-  for(i=0; i<NCELL(pRight); i++){
-    i64 iRowid = nodeGetRowid(pRtree, pRight, i);
-    rc = updateMapping(pRtree, iRowid, pRight, iHeight);
-    if( iRowid==pCell->iRowid ){
-      newCellIsRight = 1;
-    }
-    if( rc!=SQLITE_OK ){
-      goto splitnode_out;
-    }
-  }
-  if( pNode->iNode==1 ){
-    for(i=0; i<NCELL(pLeft); i++){
-      i64 iRowid = nodeGetRowid(pRtree, pLeft, i);
-      rc = updateMapping(pRtree, iRowid, pLeft, iHeight);
-      if( rc!=SQLITE_OK ){
-        goto splitnode_out;
-      }
-    }
-  }else if( newCellIsRight==0 ){
-    rc = updateMapping(pRtree, pCell->iRowid, pLeft, iHeight);
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = nodeRelease(pRtree, pRight);
-    pRight = 0;
-  }
-  if( rc==SQLITE_OK ){
-    rc = nodeRelease(pRtree, pLeft);
-    pLeft = 0;
-  }
-
-splitnode_out:
-  nodeRelease(pRtree, pRight);
-  nodeRelease(pRtree, pLeft);
-  tdsqlite3_free(aCell);
-  return rc;
-}
-
-/*
-** If node pLeaf is not the root of the r-tree and its pParent pointer is 
-** still NULL, load all ancestor nodes of pLeaf into memory and populate
-** the pLeaf->pParent chain all the way up to the root node.
-**
-** This operation is required when a row is deleted (or updated - an update
-** is implemented as a delete followed by an insert). SQLite provides the
-** rowid of the row to delete, which can be used to find the leaf on which
-** the entry resides (argument pLeaf). Once the leaf is located, this 
-** function is called to determine its ancestry.
-*/
-static int fixLeafParent(Rtree *pRtree, RtreeNode *pLeaf){
-  int rc = SQLITE_OK;
-  RtreeNode *pChild = pLeaf;
-  while( rc==SQLITE_OK && pChild->iNode!=1 && pChild->pParent==0 ){
-    int rc2 = SQLITE_OK;          /* tdsqlite3_reset() return code */
-    tdsqlite3_bind_int64(pRtree->pReadParent, 1, pChild->iNode);
-    rc = tdsqlite3_step(pRtree->pReadParent);
-    if( rc==SQLITE_ROW ){
-      RtreeNode *pTest;           /* Used to test for reference loops */
-      i64 iNode;                  /* Node number of parent node */
-
-      /* Before setting pChild->pParent, test that we are not creating a
-      ** loop of references (as we would if, say, pChild==pParent). We don't
-      ** want to do this as it leads to a memory leak when trying to delete
-      ** the referenced counted node structures.
-      */
-      iNode = tdsqlite3_column_int64(pRtree->pReadParent, 0);
-      for(pTest=pLeaf; pTest && pTest->iNode!=iNode; pTest=pTest->pParent);
-      if( !pTest ){
-        rc2 = nodeAcquire(pRtree, iNode, 0, &pChild->pParent);
-      }
-    }
-    rc = tdsqlite3_reset(pRtree->pReadParent);
-    if( rc==SQLITE_OK ) rc = rc2;
-    if( rc==SQLITE_OK && !pChild->pParent ){
-      RTREE_IS_CORRUPT(pRtree);
-      rc = SQLITE_CORRUPT_VTAB;
-    }
-    pChild = pChild->pParent;
-  }
-  return rc;
-}
-
-static int deleteCell(Rtree *, RtreeNode *, int, int);
-
-static int removeNode(Rtree *pRtree, RtreeNode *pNode, int iHeight){
-  int rc;
-  int rc2;
-  RtreeNode *pParent = 0;
-  int iCell;
-
-  assert( pNode->nRef==1 );
-
-  /* Remove the entry in the parent cell. */
-  rc = nodeParentIndex(pRtree, pNode, &iCell);
-  if( rc==SQLITE_OK ){
-    pParent = pNode->pParent;
-    pNode->pParent = 0;
-    rc = deleteCell(pRtree, pParent, iCell, iHeight+1);
-  }
-  rc2 = nodeRelease(pRtree, pParent);
-  if( rc==SQLITE_OK ){
-    rc = rc2;
-  }
-  if( rc!=SQLITE_OK ){
-    return rc;
-  }
-
-  /* Remove the xxx_node entry. */
-  tdsqlite3_bind_int64(pRtree->pDeleteNode, 1, pNode->iNode);
-  tdsqlite3_step(pRtree->pDeleteNode);
-  if( SQLITE_OK!=(rc = tdsqlite3_reset(pRtree->pDeleteNode)) ){
-    return rc;
-  }
-
-  /* Remove the xxx_parent entry. */
-  tdsqlite3_bind_int64(pRtree->pDeleteParent, 1, pNode->iNode);
-  tdsqlite3_step(pRtree->pDeleteParent);
-  if( SQLITE_OK!=(rc = tdsqlite3_reset(pRtree->pDeleteParent)) ){
-    return rc;
-  }
-  
-  /* Remove the node from the in-memory hash table and link it into
-  ** the Rtree.pDeleted list. Its contents will be re-inserted later on.
-  */
-  nodeHashDelete(pRtree, pNode);
-  pNode->iNode = iHeight;
-  pNode->pNext = pRtree->pDeleted;
-  pNode->nRef++;
-  pRtree->pDeleted = pNode;
-
-  return SQLITE_OK;
-}
-
-static int fixBoundingBox(Rtree *pRtree, RtreeNode *pNode){
-  RtreeNode *pParent = pNode->pParent;
-  int rc = SQLITE_OK; 
-  if( pParent ){
-    int ii; 
-    int nCell = NCELL(pNode);
-    RtreeCell box;                            /* Bounding box for pNode */
-    nodeGetCell(pRtree, pNode, 0, &box);
-    for(ii=1; ii<nCell; ii++){
-      RtreeCell cell;
-      nodeGetCell(pRtree, pNode, ii, &cell);
-      cellUnion(pRtree, &box, &cell);
-    }
-    box.iRowid = pNode->iNode;
-    rc = nodeParentIndex(pRtree, pNode, &ii);
-    if( rc==SQLITE_OK ){
-      nodeOverwriteCell(pRtree, pParent, &box, ii);
-      rc = fixBoundingBox(pRtree, pParent);
-    }
-  }
-  return rc;
-}
-
-/*
-** Delete the cell at index iCell of node pNode. After removing the
-** cell, adjust the r-tree data structure if required.
-*/
-static int deleteCell(Rtree *pRtree, RtreeNode *pNode, int iCell, int iHeight){
-  RtreeNode *pParent;
-  int rc;
-
-  if( SQLITE_OK!=(rc = fixLeafParent(pRtree, pNode)) ){
-    return rc;
-  }
-
-  /* Remove the cell from the node. This call just moves bytes around
-  ** the in-memory node image, so it cannot fail.
-  */
-  nodeDeleteCell(pRtree, pNode, iCell);
-
-  /* If the node is not the tree root and now has less than the minimum
-  ** number of cells, remove it from the tree. Otherwise, update the
-  ** cell in the parent node so that it tightly contains the updated
-  ** node.
-  */
-  pParent = pNode->pParent;
-  assert( pParent || pNode->iNode==1 );
-  if( pParent ){
-    if( NCELL(pNode)<RTREE_MINCELLS(pRtree) ){
-      rc = removeNode(pRtree, pNode, iHeight);
-    }else{
-      rc = fixBoundingBox(pRtree, pNode);
-    }
-  }
-
-  return rc;
-}
-
-static int Reinsert(
-  Rtree *pRtree, 
-  RtreeNode *pNode, 
-  RtreeCell *pCell, 
-  int iHeight
-){
-  int *aOrder;
-  int *aSpare;
-  RtreeCell *aCell;
-  RtreeDValue *aDistance;
-  int nCell;
-  RtreeDValue aCenterCoord[RTREE_MAX_DIMENSIONS];
-  int iDim;
-  int ii;
-  int rc = SQLITE_OK;
-  int n;
-
-  memset(aCenterCoord, 0, sizeof(RtreeDValue)*RTREE_MAX_DIMENSIONS);
-
-  nCell = NCELL(pNode)+1;
-  n = (nCell+1)&(~1);
-
-  /* Allocate the buffers used by this operation. The allocation is
-  ** relinquished before this function returns.
-  */
-  aCell = (RtreeCell *)tdsqlite3_malloc64(n * (
-    sizeof(RtreeCell)     +         /* aCell array */
-    sizeof(int)           +         /* aOrder array */
-    sizeof(int)           +         /* aSpare array */
-    sizeof(RtreeDValue)             /* aDistance array */
-  ));
-  if( !aCell ){
-    return SQLITE_NOMEM;
-  }
-  aOrder    = (int *)&aCell[n];
-  aSpare    = (int *)&aOrder[n];
-  aDistance = (RtreeDValue *)&aSpare[n];
-
-  for(ii=0; ii<nCell; ii++){
-    if( ii==(nCell-1) ){
-      memcpy(&aCell[ii], pCell, sizeof(RtreeCell));
-    }else{
-      nodeGetCell(pRtree, pNode, ii, &aCell[ii]);
-    }
-    aOrder[ii] = ii;
-    for(iDim=0; iDim<pRtree->nDim; iDim++){
-      aCenterCoord[iDim] += DCOORD(aCell[ii].aCoord[iDim*2]);
-      aCenterCoord[iDim] += DCOORD(aCell[ii].aCoord[iDim*2+1]);
-    }
-  }
-  for(iDim=0; iDim<pRtree->nDim; iDim++){
-    aCenterCoord[iDim] = (aCenterCoord[iDim]/(nCell*(RtreeDValue)2));
-  }
-
-  for(ii=0; ii<nCell; ii++){
-    aDistance[ii] = RTREE_ZERO;
-    for(iDim=0; iDim<pRtree->nDim; iDim++){
-      RtreeDValue coord = (DCOORD(aCell[ii].aCoord[iDim*2+1]) - 
-                               DCOORD(aCell[ii].aCoord[iDim*2]));
-      aDistance[ii] += (coord-aCenterCoord[iDim])*(coord-aCenterCoord[iDim]);
-    }
-  }
-
-  SortByDistance(aOrder, nCell, aDistance, aSpare);
-  nodeZero(pRtree, pNode);
-
-  for(ii=0; rc==SQLITE_OK && ii<(nCell-(RTREE_MINCELLS(pRtree)+1)); ii++){
-    RtreeCell *p = &aCell[aOrder[ii]];
-    nodeInsertCell(pRtree, pNode, p);
-    if( p->iRowid==pCell->iRowid ){
-      if( iHeight==0 ){
-        rc = rowidWrite(pRtree, p->iRowid, pNode->iNode);
-      }else{
-        rc = parentWrite(pRtree, p->iRowid, pNode->iNode);
-      }
-    }
-  }
-  if( rc==SQLITE_OK ){
-    rc = fixBoundingBox(pRtree, pNode);
-  }
-  for(; rc==SQLITE_OK && ii<nCell; ii++){
-    /* Find a node to store this cell in. pNode->iNode currently contains
-    ** the height of the sub-tree headed by the cell.
-    */
-    RtreeNode *pInsert;
-    RtreeCell *p = &aCell[aOrder[ii]];
-    rc = ChooseLeaf(pRtree, p, iHeight, &pInsert);
-    if( rc==SQLITE_OK ){
-      int rc2;
-      rc = rtreeInsertCell(pRtree, pInsert, p, iHeight);
-      rc2 = nodeRelease(pRtree, pInsert);
-      if( rc==SQLITE_OK ){
-        rc = rc2;
-      }
-    }
-  }
-
-  tdsqlite3_free(aCell);
-  return rc;
-}
-
-/*
-** Insert cell pCell into node pNode. Node pNode is the head of a 
-** subtree iHeight high (leaf nodes have iHeight==0).
-*/
-static int rtreeInsertCell(
-  Rtree *pRtree,
-  RtreeNode *pNode,
-  RtreeCell *pCell,
-  int iHeight
-){
-  int rc = SQLITE_OK;
-  if( iHeight>0 ){
-    RtreeNode *pChild = nodeHashLookup(pRtree, pCell->iRowid);
-    if( pChild ){
-      nodeRelease(pRtree, pChild->pParent);
-      nodeReference(pNode);
-      pChild->pParent = pNode;
-    }
-  }
-  if( nodeInsertCell(pRtree, pNode, pCell) ){
-    if( iHeight<=pRtree->iReinsertHeight || pNode->iNode==1){
-      rc = SplitNode(pRtree, pNode, pCell, iHeight);
-    }else{
-      pRtree->iReinsertHeight = iHeight;
-      rc = Reinsert(pRtree, pNode, pCell, iHeight);
-    }
-  }else{
-    rc = AdjustTree(pRtree, pNode, pCell);
-    if( rc==SQLITE_OK ){
-      if( iHeight==0 ){
-        rc = rowidWrite(pRtree, pCell->iRowid, pNode->iNode);
-      }else{
-        rc = parentWrite(pRtree, pCell->iRowid, pNode->iNode);
-      }
-    }
-  }
-  return rc;
-}
-
-static int reinsertNodeContent(Rtree *pRtree, RtreeNode *pNode){
-  int ii;
-  int rc = SQLITE_OK;
-  int nCell = NCELL(pNode);
-
-  for(ii=0; rc==SQLITE_OK && ii<nCell; ii++){
-    RtreeNode *pInsert;
-    RtreeCell cell;
-    nodeGetCell(pRtree, pNode, ii, &cell);
-
-    /* Find a node to store this cell in. pNode->iNode currently contains
-    ** the height of the sub-tree headed by the cell.
-    */
-    rc = ChooseLeaf(pRtree, &cell, (int)pNode->iNode, &pInsert);
-    if( rc==SQLITE_OK ){
-      int rc2;
-      rc = rtreeInsertCell(pRtree, pInsert, &cell, (int)pNode->iNode);
-      rc2 = nodeRelease(pRtree, pInsert);
-      if( rc==SQLITE_OK ){
-        rc = rc2;
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** Select a currently unused rowid for a new r-tree record.
-*/
-static int rtreeNewRowid(Rtree *pRtree, i64 *piRowid){
-  int rc;
-  tdsqlite3_bind_null(pRtree->pWriteRowid, 1);
-  tdsqlite3_bind_null(pRtree->pWriteRowid, 2);
-  tdsqlite3_step(pRtree->pWriteRowid);
-  rc = tdsqlite3_reset(pRtree->pWriteRowid);
-  *piRowid = tdsqlite3_last_insert_rowid(pRtree->db);
-  return rc;
-}
-
-/*
-** Remove the entry with rowid=iDelete from the r-tree structure.
-*/
-static int rtreeDeleteRowid(Rtree *pRtree, tdsqlite3_int64 iDelete){
-  int rc;                         /* Return code */
-  RtreeNode *pLeaf = 0;           /* Leaf node containing record iDelete */
-  int iCell;                      /* Index of iDelete cell in pLeaf */
-  RtreeNode *pRoot = 0;           /* Root node of rtree structure */
-
-
-  /* Obtain a reference to the root node to initialize Rtree.iDepth */
-  rc = nodeAcquire(pRtree, 1, 0, &pRoot);
-
-  /* Obtain a reference to the leaf node that contains the entry 
-  ** about to be deleted. 
-  */
-  if( rc==SQLITE_OK ){
-    rc = findLeafNode(pRtree, iDelete, &pLeaf, 0);
-  }
-
-#ifdef CORRUPT_DB
-  assert( pLeaf!=0 || rc!=SQLITE_OK || CORRUPT_DB );
-#endif
-
-  /* Delete the cell in question from the leaf node. */
-  if( rc==SQLITE_OK && pLeaf ){
-    int rc2;
-    rc = nodeRowidIndex(pRtree, pLeaf, iDelete, &iCell);
-    if( rc==SQLITE_OK ){
-      rc = deleteCell(pRtree, pLeaf, iCell, 0);
-    }
-    rc2 = nodeRelease(pRtree, pLeaf);
-    if( rc==SQLITE_OK ){
-      rc = rc2;
-    }
-  }
-
-  /* Delete the corresponding entry in the <rtree>_rowid table. */
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pRtree->pDeleteRowid, 1, iDelete);
-    tdsqlite3_step(pRtree->pDeleteRowid);
-    rc = tdsqlite3_reset(pRtree->pDeleteRowid);
-  }
-
-  /* Check if the root node now has exactly one child. If so, remove
-  ** it, schedule the contents of the child for reinsertion and 
-  ** reduce the tree height by one.
-  **
-  ** This is equivalent to copying the contents of the child into
-  ** the root node (the operation that Gutman's paper says to perform 
-  ** in this scenario).
-  */
-  if( rc==SQLITE_OK && pRtree->iDepth>0 && NCELL(pRoot)==1 ){
-    int rc2;
-    RtreeNode *pChild = 0;
-    i64 iChild = nodeGetRowid(pRtree, pRoot, 0);
-    rc = nodeAcquire(pRtree, iChild, pRoot, &pChild);
-    if( rc==SQLITE_OK ){
-      rc = removeNode(pRtree, pChild, pRtree->iDepth-1);
-    }
-    rc2 = nodeRelease(pRtree, pChild);
-    if( rc==SQLITE_OK ) rc = rc2;
-    if( rc==SQLITE_OK ){
-      pRtree->iDepth--;
-      writeInt16(pRoot->zData, pRtree->iDepth);
-      pRoot->isDirty = 1;
-    }
-  }
-
-  /* Re-insert the contents of any underfull nodes removed from the tree. */
-  for(pLeaf=pRtree->pDeleted; pLeaf; pLeaf=pRtree->pDeleted){
-    if( rc==SQLITE_OK ){
-      rc = reinsertNodeContent(pRtree, pLeaf);
-    }
-    pRtree->pDeleted = pLeaf->pNext;
-    pRtree->nNodeRef--;
-    tdsqlite3_free(pLeaf);
-  }
-
-  /* Release the reference to the root node. */
-  if( rc==SQLITE_OK ){
-    rc = nodeRelease(pRtree, pRoot);
-  }else{
-    nodeRelease(pRtree, pRoot);
-  }
-
-  return rc;
-}
-
-/*
-** Rounding constants for float->double conversion.
-*/
-#define RNDTOWARDS  (1.0 - 1.0/8388608.0)  /* Round towards zero */
-#define RNDAWAY     (1.0 + 1.0/8388608.0)  /* Round away from zero */
-
-#if !defined(SQLITE_RTREE_INT_ONLY)
-/*
-** Convert an tdsqlite3_value into an RtreeValue (presumably a float)
-** while taking care to round toward negative or positive, respectively.
-*/
-static RtreeValue rtreeValueDown(tdsqlite3_value *v){
-  double d = tdsqlite3_value_double(v);
-  float f = (float)d;
-  if( f>d ){
-    f = (float)(d*(d<0 ? RNDAWAY : RNDTOWARDS));
-  }
-  return f;
-}
-static RtreeValue rtreeValueUp(tdsqlite3_value *v){
-  double d = tdsqlite3_value_double(v);
-  float f = (float)d;
-  if( f<d ){
-    f = (float)(d*(d<0 ? RNDTOWARDS : RNDAWAY));
-  }
-  return f;
-}
-#endif /* !defined(SQLITE_RTREE_INT_ONLY) */
-
-/*
-** A constraint has failed while inserting a row into an rtree table. 
-** Assuming no OOM error occurs, this function sets the error message 
-** (at pRtree->base.zErrMsg) to an appropriate value and returns
-** SQLITE_CONSTRAINT.
-**
-** Parameter iCol is the index of the leftmost column involved in the
-** constraint failure. If it is 0, then the constraint that failed is
-** the unique constraint on the id column. Otherwise, it is the rtree
-** (c1<=c2) constraint on columns iCol and iCol+1 that has failed.
-**
-** If an OOM occurs, SQLITE_NOMEM is returned instead of SQLITE_CONSTRAINT.
-*/
-static int rtreeConstraintError(Rtree *pRtree, int iCol){
-  tdsqlite3_stmt *pStmt = 0;
-  char *zSql; 
-  int rc;
-
-  assert( iCol==0 || iCol%2 );
-  zSql = tdsqlite3_mprintf("SELECT * FROM %Q.%Q", pRtree->zDb, pRtree->zName);
-  if( zSql ){
-    rc = tdsqlite3_prepare_v2(pRtree->db, zSql, -1, &pStmt, 0);
-  }else{
-    rc = SQLITE_NOMEM;
-  }
-  tdsqlite3_free(zSql);
-
-  if( rc==SQLITE_OK ){
-    if( iCol==0 ){
-      const char *zCol = tdsqlite3_column_name(pStmt, 0);
-      pRtree->base.zErrMsg = tdsqlite3_mprintf(
-          "UNIQUE constraint failed: %s.%s", pRtree->zName, zCol
-      );
-    }else{
-      const char *zCol1 = tdsqlite3_column_name(pStmt, iCol);
-      const char *zCol2 = tdsqlite3_column_name(pStmt, iCol+1);
-      pRtree->base.zErrMsg = tdsqlite3_mprintf(
-          "rtree constraint failed: %s.(%s<=%s)", pRtree->zName, zCol1, zCol2
-      );
-    }
-  }
-
-  tdsqlite3_finalize(pStmt);
-  return (rc==SQLITE_OK ? SQLITE_CONSTRAINT : rc);
-}
-
-
-
-/*
-** The xUpdate method for rtree module virtual tables.
-*/
-static int rtreeUpdate(
-  tdsqlite3_vtab *pVtab, 
-  int nData, 
-  tdsqlite3_value **aData, 
-  sqlite_int64 *pRowid
-){
-  Rtree *pRtree = (Rtree *)pVtab;
-  int rc = SQLITE_OK;
-  RtreeCell cell;                 /* New cell to insert if nData>1 */
-  int bHaveRowid = 0;             /* Set to 1 after new rowid is determined */
-
-  if( pRtree->nNodeRef ){
-    /* Unable to write to the btree while another cursor is reading from it,
-    ** since the write might do a rebalance which would disrupt the read
-    ** cursor. */
-    return SQLITE_LOCKED_VTAB;
-  }
-  rtreeReference(pRtree);
-  assert(nData>=1);
-
-  cell.iRowid = 0;  /* Used only to suppress a compiler warning */
-
-  /* Constraint handling. A write operation on an r-tree table may return
-  ** SQLITE_CONSTRAINT for two reasons:
-  **
-  **   1. A duplicate rowid value, or
-  **   2. The supplied data violates the "x2>=x1" constraint.
-  **
-  ** In the first case, if the conflict-handling mode is REPLACE, then
-  ** the conflicting row can be removed before proceeding. In the second
-  ** case, SQLITE_CONSTRAINT must be returned regardless of the
-  ** conflict-handling mode specified by the user.
-  */
-  if( nData>1 ){
-    int ii;
-    int nn = nData - 4;
-
-    if( nn > pRtree->nDim2 ) nn = pRtree->nDim2;
-    /* Populate the cell.aCoord[] array. The first coordinate is aData[3].
-    **
-    ** NB: nData can only be less than nDim*2+3 if the rtree is mis-declared
-    ** with "column" that are interpreted as table constraints.
-    ** Example:  CREATE VIRTUAL TABLE bad USING rtree(x,y,CHECK(y>5));
-    ** This problem was discovered after years of use, so we silently ignore
-    ** these kinds of misdeclared tables to avoid breaking any legacy.
-    */
-
-#ifndef SQLITE_RTREE_INT_ONLY
-    if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
-      for(ii=0; ii<nn; ii+=2){
-        cell.aCoord[ii].f = rtreeValueDown(aData[ii+3]);
-        cell.aCoord[ii+1].f = rtreeValueUp(aData[ii+4]);
-        if( cell.aCoord[ii].f>cell.aCoord[ii+1].f ){
-          rc = rtreeConstraintError(pRtree, ii+1);
-          goto constraint;
-        }
-      }
-    }else
-#endif
-    {
-      for(ii=0; ii<nn; ii+=2){
-        cell.aCoord[ii].i = tdsqlite3_value_int(aData[ii+3]);
-        cell.aCoord[ii+1].i = tdsqlite3_value_int(aData[ii+4]);
-        if( cell.aCoord[ii].i>cell.aCoord[ii+1].i ){
-          rc = rtreeConstraintError(pRtree, ii+1);
-          goto constraint;
-        }
-      }
-    }
-
-    /* If a rowid value was supplied, check if it is already present in 
-    ** the table. If so, the constraint has failed. */
-    if( tdsqlite3_value_type(aData[2])!=SQLITE_NULL ){
-      cell.iRowid = tdsqlite3_value_int64(aData[2]);
-      if( tdsqlite3_value_type(aData[0])==SQLITE_NULL
-       || tdsqlite3_value_int64(aData[0])!=cell.iRowid
-      ){
-        int steprc;
-        tdsqlite3_bind_int64(pRtree->pReadRowid, 1, cell.iRowid);
-        steprc = tdsqlite3_step(pRtree->pReadRowid);
-        rc = tdsqlite3_reset(pRtree->pReadRowid);
-        if( SQLITE_ROW==steprc ){
-          if( tdsqlite3_vtab_on_conflict(pRtree->db)==SQLITE_REPLACE ){
-            rc = rtreeDeleteRowid(pRtree, cell.iRowid);
-          }else{
-            rc = rtreeConstraintError(pRtree, 0);
-            goto constraint;
-          }
-        }
-      }
-      bHaveRowid = 1;
-    }
-  }
-
-  /* If aData[0] is not an SQL NULL value, it is the rowid of a
-  ** record to delete from the r-tree table. The following block does
-  ** just that.
-  */
-  if( tdsqlite3_value_type(aData[0])!=SQLITE_NULL ){
-    rc = rtreeDeleteRowid(pRtree, tdsqlite3_value_int64(aData[0]));
-  }
-
-  /* If the aData[] array contains more than one element, elements
-  ** (aData[2]..aData[argc-1]) contain a new record to insert into
-  ** the r-tree structure.
-  */
-  if( rc==SQLITE_OK && nData>1 ){
-    /* Insert the new record into the r-tree */
-    RtreeNode *pLeaf = 0;
-
-    /* Figure out the rowid of the new row. */
-    if( bHaveRowid==0 ){
-      rc = rtreeNewRowid(pRtree, &cell.iRowid);
-    }
-    *pRowid = cell.iRowid;
-
-    if( rc==SQLITE_OK ){
-      rc = ChooseLeaf(pRtree, &cell, 0, &pLeaf);
-    }
-    if( rc==SQLITE_OK ){
-      int rc2;
-      pRtree->iReinsertHeight = -1;
-      rc = rtreeInsertCell(pRtree, pLeaf, &cell, 0);
-      rc2 = nodeRelease(pRtree, pLeaf);
-      if( rc==SQLITE_OK ){
-        rc = rc2;
-      }
-    }
-    if( rc==SQLITE_OK && pRtree->nAux ){
-      tdsqlite3_stmt *pUp = pRtree->pWriteAux;
-      int jj;
-      tdsqlite3_bind_int64(pUp, 1, *pRowid);
-      for(jj=0; jj<pRtree->nAux; jj++){
-        tdsqlite3_bind_value(pUp, jj+2, aData[pRtree->nDim2+3+jj]);
-      }
-      tdsqlite3_step(pUp);
-      rc = tdsqlite3_reset(pUp);
-    }
-  }
-
-constraint:
-  rtreeRelease(pRtree);
-  return rc;
-}
-
-/*
-** Called when a transaction starts.
-*/
-static int rtreeBeginTransaction(tdsqlite3_vtab *pVtab){
-  Rtree *pRtree = (Rtree *)pVtab;
-  assert( pRtree->inWrTrans==0 );
-  pRtree->inWrTrans++;
-  return SQLITE_OK;
-}
-
-/*
-** Called when a transaction completes (either by COMMIT or ROLLBACK).
-** The tdsqlite3_blob object should be released at this point.
-*/
-static int rtreeEndTransaction(tdsqlite3_vtab *pVtab){
-  Rtree *pRtree = (Rtree *)pVtab;
-  pRtree->inWrTrans = 0;
-  nodeBlobReset(pRtree);
-  return SQLITE_OK;
-}
-
-/*
-** The xRename method for rtree module virtual tables.
-*/
-static int rtreeRename(tdsqlite3_vtab *pVtab, const char *zNewName){
-  Rtree *pRtree = (Rtree *)pVtab;
-  int rc = SQLITE_NOMEM;
-  char *zSql = tdsqlite3_mprintf(
-    "ALTER TABLE %Q.'%q_node'   RENAME TO \"%w_node\";"
-    "ALTER TABLE %Q.'%q_parent' RENAME TO \"%w_parent\";"
-    "ALTER TABLE %Q.'%q_rowid'  RENAME TO \"%w_rowid\";"
-    , pRtree->zDb, pRtree->zName, zNewName 
-    , pRtree->zDb, pRtree->zName, zNewName 
-    , pRtree->zDb, pRtree->zName, zNewName
-  );
-  if( zSql ){
-    nodeBlobReset(pRtree);
-    rc = tdsqlite3_exec(pRtree->db, zSql, 0, 0, 0);
-    tdsqlite3_free(zSql);
-  }
-  return rc;
-}
-
-/*
-** The xSavepoint method.
-**
-** This module does not need to do anything to support savepoints. However,
-** it uses this hook to close any open blob handle. This is done because a 
-** DROP TABLE command - which fortunately always opens a savepoint - cannot 
-** succeed if there are any open blob handles. i.e. if the blob handle were
-** not closed here, the following would fail:
-**
-**   BEGIN;
-**     INSERT INTO rtree...
-**     DROP TABLE <tablename>;    -- Would fail with SQLITE_LOCKED
-**   COMMIT;
-*/
-static int rtreeSavepoint(tdsqlite3_vtab *pVtab, int iSavepoint){
-  Rtree *pRtree = (Rtree *)pVtab;
-  u8 iwt = pRtree->inWrTrans;
-  UNUSED_PARAMETER(iSavepoint);
-  pRtree->inWrTrans = 0;
-  nodeBlobReset(pRtree);
-  pRtree->inWrTrans = iwt;
-  return SQLITE_OK;
-}
-
-/*
-** This function populates the pRtree->nRowEst variable with an estimate
-** of the number of rows in the virtual table. If possible, this is based
-** on sqlite_stat1 data. Otherwise, use RTREE_DEFAULT_ROWEST.
-*/
-static int rtreeQueryStat1(tdsqlite3 *db, Rtree *pRtree){
-  const char *zFmt = "SELECT stat FROM %Q.sqlite_stat1 WHERE tbl = '%q_rowid'";
-  char *zSql;
-  tdsqlite3_stmt *p;
-  int rc;
-  i64 nRow = 0;
-
-  rc = tdsqlite3_table_column_metadata(
-      db, pRtree->zDb, "sqlite_stat1",0,0,0,0,0,0
-  );
-  if( rc!=SQLITE_OK ){
-    pRtree->nRowEst = RTREE_DEFAULT_ROWEST;
-    return rc==SQLITE_ERROR ? SQLITE_OK : rc;
-  }
-  zSql = tdsqlite3_mprintf(zFmt, pRtree->zDb, pRtree->zName);
-  if( zSql==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    rc = tdsqlite3_prepare_v2(db, zSql, -1, &p, 0);
-    if( rc==SQLITE_OK ){
-      if( tdsqlite3_step(p)==SQLITE_ROW ) nRow = tdsqlite3_column_int64(p, 0);
-      rc = tdsqlite3_finalize(p);
-    }else if( rc!=SQLITE_NOMEM ){
-      rc = SQLITE_OK;
-    }
-
-    if( rc==SQLITE_OK ){
-      if( nRow==0 ){
-        pRtree->nRowEst = RTREE_DEFAULT_ROWEST;
-      }else{
-        pRtree->nRowEst = MAX(nRow, RTREE_MIN_ROWEST);
-      }
-    }
-    tdsqlite3_free(zSql);
-  }
-
-  return rc;
-}
-
-
-/*
-** Return true if zName is the extension on one of the shadow tables used
-** by this module.
-*/
-static int rtreeShadowName(const char *zName){
-  static const char *azName[] = {
-    "node", "parent", "rowid"
-  };
-  unsigned int i;
-  for(i=0; i<sizeof(azName)/sizeof(azName[0]); i++){
-    if( tdsqlite3_stricmp(zName, azName[i])==0 ) return 1;
-  }
-  return 0;
-}
-
-static tdsqlite3_module rtreeModule = {
-  3,                          /* iVersion */
-  rtreeCreate,                /* xCreate - create a table */
-  rtreeConnect,               /* xConnect - connect to an existing table */
-  rtreeBestIndex,             /* xBestIndex - Determine search strategy */
-  rtreeDisconnect,            /* xDisconnect - Disconnect from a table */
-  rtreeDestroy,               /* xDestroy - Drop a table */
-  rtreeOpen,                  /* xOpen - open a cursor */
-  rtreeClose,                 /* xClose - close a cursor */
-  rtreeFilter,                /* xFilter - configure scan constraints */
-  rtreeNext,                  /* xNext - advance a cursor */
-  rtreeEof,                   /* xEof */
-  rtreeColumn,                /* xColumn - read data */
-  rtreeRowid,                 /* xRowid - read data */
-  rtreeUpdate,                /* xUpdate - write data */
-  rtreeBeginTransaction,      /* xBegin - begin transaction */
-  rtreeEndTransaction,        /* xSync - sync transaction */
-  rtreeEndTransaction,        /* xCommit - commit transaction */
-  rtreeEndTransaction,        /* xRollback - rollback transaction */
-  0,                          /* xFindFunction - function overloading */
-  rtreeRename,                /* xRename - rename the table */
-  rtreeSavepoint,             /* xSavepoint */
-  0,                          /* xRelease */
-  0,                          /* xRollbackTo */
-  rtreeShadowName             /* xShadowName */
-};
-
-static int rtreeSqlInit(
-  Rtree *pRtree, 
-  tdsqlite3 *db, 
-  const char *zDb, 
-  const char *zPrefix, 
-  int isCreate
-){
-  int rc = SQLITE_OK;
-
-  #define N_STATEMENT 8
-  static const char *azSql[N_STATEMENT] = {
-    /* Write the xxx_node table */
-    "INSERT OR REPLACE INTO '%q'.'%q_node' VALUES(?1, ?2)",
-    "DELETE FROM '%q'.'%q_node' WHERE nodeno = ?1",
-
-    /* Read and write the xxx_rowid table */
-    "SELECT nodeno FROM '%q'.'%q_rowid' WHERE rowid = ?1",
-    "INSERT OR REPLACE INTO '%q'.'%q_rowid' VALUES(?1, ?2)",
-    "DELETE FROM '%q'.'%q_rowid' WHERE rowid = ?1",
-
-    /* Read and write the xxx_parent table */
-    "SELECT parentnode FROM '%q'.'%q_parent' WHERE nodeno = ?1",
-    "INSERT OR REPLACE INTO '%q'.'%q_parent' VALUES(?1, ?2)",
-    "DELETE FROM '%q'.'%q_parent' WHERE nodeno = ?1"
-  };
-  tdsqlite3_stmt **appStmt[N_STATEMENT];
-  int i;
-  const int f = SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_NO_VTAB;
-
-  pRtree->db = db;
-
-  if( isCreate ){
-    char *zCreate;
-    tdsqlite3_str *p = tdsqlite3_str_new(db);
-    int ii;
-    tdsqlite3_str_appendf(p,
-       "CREATE TABLE \"%w\".\"%w_rowid\"(rowid INTEGER PRIMARY KEY,nodeno",
-       zDb, zPrefix);
-    for(ii=0; ii<pRtree->nAux; ii++){
-      tdsqlite3_str_appendf(p,",a%d",ii);
-    }
-    tdsqlite3_str_appendf(p,
-      ");CREATE TABLE \"%w\".\"%w_node\"(nodeno INTEGER PRIMARY KEY,data);",
-      zDb, zPrefix);
-    tdsqlite3_str_appendf(p,
-    "CREATE TABLE \"%w\".\"%w_parent\"(nodeno INTEGER PRIMARY KEY,parentnode);",
-      zDb, zPrefix);
-    tdsqlite3_str_appendf(p,
-       "INSERT INTO \"%w\".\"%w_node\"VALUES(1,zeroblob(%d))",
-       zDb, zPrefix, pRtree->iNodeSize);
-    zCreate = tdsqlite3_str_finish(p);
-    if( !zCreate ){
-      return SQLITE_NOMEM;
-    }
-    rc = tdsqlite3_exec(db, zCreate, 0, 0, 0);
-    tdsqlite3_free(zCreate);
-    if( rc!=SQLITE_OK ){
-      return rc;
-    }
-  }
-
-  appStmt[0] = &pRtree->pWriteNode;
-  appStmt[1] = &pRtree->pDeleteNode;
-  appStmt[2] = &pRtree->pReadRowid;
-  appStmt[3] = &pRtree->pWriteRowid;
-  appStmt[4] = &pRtree->pDeleteRowid;
-  appStmt[5] = &pRtree->pReadParent;
-  appStmt[6] = &pRtree->pWriteParent;
-  appStmt[7] = &pRtree->pDeleteParent;
-
-  rc = rtreeQueryStat1(db, pRtree);
-  for(i=0; i<N_STATEMENT && rc==SQLITE_OK; i++){
-    char *zSql;
-    const char *zFormat;
-    if( i!=3 || pRtree->nAux==0 ){
-       zFormat = azSql[i];
-    }else {
-       /* An UPSERT is very slightly slower than REPLACE, but it is needed
-       ** if there are auxiliary columns */
-       zFormat = "INSERT INTO\"%w\".\"%w_rowid\"(rowid,nodeno)VALUES(?1,?2)"
-                  "ON CONFLICT(rowid)DO UPDATE SET nodeno=excluded.nodeno";
-    }
-    zSql = tdsqlite3_mprintf(zFormat, zDb, zPrefix);
-    if( zSql ){
-      rc = tdsqlite3_prepare_v3(db, zSql, -1, f, appStmt[i], 0); 
-    }else{
-      rc = SQLITE_NOMEM;
-    }
-    tdsqlite3_free(zSql);
-  }
-  if( pRtree->nAux ){
-    pRtree->zReadAuxSql = tdsqlite3_mprintf(
-       "SELECT * FROM \"%w\".\"%w_rowid\" WHERE rowid=?1",
-       zDb, zPrefix);
-    if( pRtree->zReadAuxSql==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      tdsqlite3_str *p = tdsqlite3_str_new(db);
-      int ii;
-      char *zSql;
-      tdsqlite3_str_appendf(p, "UPDATE \"%w\".\"%w_rowid\"SET ", zDb, zPrefix);
-      for(ii=0; ii<pRtree->nAux; ii++){
-        if( ii ) tdsqlite3_str_append(p, ",", 1);
-        if( ii<pRtree->nAuxNotNull ){
-          tdsqlite3_str_appendf(p,"a%d=coalesce(?%d,a%d)",ii,ii+2,ii);
-        }else{
-          tdsqlite3_str_appendf(p,"a%d=?%d",ii,ii+2);
-        }
-      }
-      tdsqlite3_str_appendf(p, " WHERE rowid=?1");
-      zSql = tdsqlite3_str_finish(p);
-      if( zSql==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        rc = tdsqlite3_prepare_v3(db, zSql, -1, f, &pRtree->pWriteAux, 0); 
-        tdsqlite3_free(zSql);
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** The second argument to this function contains the text of an SQL statement
-** that returns a single integer value. The statement is compiled and executed
-** using database connection db. If successful, the integer value returned
-** is written to *piVal and SQLITE_OK returned. Otherwise, an SQLite error
-** code is returned and the value of *piVal after returning is not defined.
-*/
-static int getIntFromStmt(tdsqlite3 *db, const char *zSql, int *piVal){
-  int rc = SQLITE_NOMEM;
-  if( zSql ){
-    tdsqlite3_stmt *pStmt = 0;
-    rc = tdsqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
-    if( rc==SQLITE_OK ){
-      if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-        *piVal = tdsqlite3_column_int(pStmt, 0);
-      }
-      rc = tdsqlite3_finalize(pStmt);
-    }
-  }
-  return rc;
-}
-
-/*
-** This function is called from within the xConnect() or xCreate() method to
-** determine the node-size used by the rtree table being created or connected
-** to. If successful, pRtree->iNodeSize is populated and SQLITE_OK returned.
-** Otherwise, an SQLite error code is returned.
-**
-** If this function is being called as part of an xConnect(), then the rtree
-** table already exists. In this case the node-size is determined by inspecting
-** the root node of the tree.
-**
-** Otherwise, for an xCreate(), use 64 bytes less than the database page-size. 
-** This ensures that each node is stored on a single database page. If the 
-** database page-size is so large that more than RTREE_MAXCELLS entries 
-** would fit in a single node, use a smaller node-size.
-*/
-static int getNodeSize(
-  tdsqlite3 *db,                    /* Database handle */
-  Rtree *pRtree,                  /* Rtree handle */
-  int isCreate,                   /* True for xCreate, false for xConnect */
-  char **pzErr                    /* OUT: Error message, if any */
-){
-  int rc;
-  char *zSql;
-  if( isCreate ){
-    int iPageSize = 0;
-    zSql = tdsqlite3_mprintf("PRAGMA %Q.page_size", pRtree->zDb);
-    rc = getIntFromStmt(db, zSql, &iPageSize);
-    if( rc==SQLITE_OK ){
-      pRtree->iNodeSize = iPageSize-64;
-      if( (4+pRtree->nBytesPerCell*RTREE_MAXCELLS)<pRtree->iNodeSize ){
-        pRtree->iNodeSize = 4+pRtree->nBytesPerCell*RTREE_MAXCELLS;
-      }
-    }else{
-      *pzErr = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-    }
-  }else{
-    zSql = tdsqlite3_mprintf(
-        "SELECT length(data) FROM '%q'.'%q_node' WHERE nodeno = 1",
-        pRtree->zDb, pRtree->zName
-    );
-    rc = getIntFromStmt(db, zSql, &pRtree->iNodeSize);
-    if( rc!=SQLITE_OK ){
-      *pzErr = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-    }else if( pRtree->iNodeSize<(512-64) ){
-      rc = SQLITE_CORRUPT_VTAB;
-      RTREE_IS_CORRUPT(pRtree);
-      *pzErr = tdsqlite3_mprintf("undersize RTree blobs in \"%q_node\"",
-                               pRtree->zName);
-    }
-  }
-
-  tdsqlite3_free(zSql);
-  return rc;
-}
-
-/*
-** Return the length of a token
-*/
-static int rtreeTokenLength(const char *z){
-  int dummy = 0;
-  return tdsqlite3GetToken((const unsigned char*)z,&dummy);
-}
-
-/* 
-** This function is the implementation of both the xConnect and xCreate
-** methods of the r-tree virtual table.
-**
-**   argv[0]   -> module name
-**   argv[1]   -> database name
-**   argv[2]   -> table name
-**   argv[...] -> column names...
-*/
-static int rtreeInit(
-  tdsqlite3 *db,                        /* Database connection */
-  void *pAux,                         /* One of the RTREE_COORD_* constants */
-  int argc, const char *const*argv,   /* Parameters to CREATE TABLE statement */
-  tdsqlite3_vtab **ppVtab,              /* OUT: New virtual table */
-  char **pzErr,                       /* OUT: Error message, if any */
-  int isCreate                        /* True for xCreate, false for xConnect */
-){
-  int rc = SQLITE_OK;
-  Rtree *pRtree;
-  int nDb;              /* Length of string argv[1] */
-  int nName;            /* Length of string argv[2] */
-  int eCoordType = (pAux ? RTREE_COORD_INT32 : RTREE_COORD_REAL32);
-  tdsqlite3_str *pSql;
-  char *zSql;
-  int ii = 4;
-  int iErr;
-
-  const char *aErrMsg[] = {
-    0,                                                    /* 0 */
-    "Wrong number of columns for an rtree table",         /* 1 */
-    "Too few columns for an rtree table",                 /* 2 */
-    "Too many columns for an rtree table",                /* 3 */
-    "Auxiliary rtree columns must be last"                /* 4 */
-  };
-
-  assert( RTREE_MAX_AUX_COLUMN<256 ); /* Aux columns counted by a u8 */
-  if( argc<6 || argc>RTREE_MAX_AUX_COLUMN+3 ){
-    *pzErr = tdsqlite3_mprintf("%s", aErrMsg[2 + (argc>=6)]);
-    return SQLITE_ERROR;
-  }
-
-  tdsqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1);
-
-  /* Allocate the tdsqlite3_vtab structure */
-  nDb = (int)strlen(argv[1]);
-  nName = (int)strlen(argv[2]);
-  pRtree = (Rtree *)tdsqlite3_malloc64(sizeof(Rtree)+nDb+nName+2);
-  if( !pRtree ){
-    return SQLITE_NOMEM;
-  }
-  memset(pRtree, 0, sizeof(Rtree)+nDb+nName+2);
-  pRtree->nBusy = 1;
-  pRtree->base.pModule = &rtreeModule;
-  pRtree->zDb = (char *)&pRtree[1];
-  pRtree->zName = &pRtree->zDb[nDb+1];
-  pRtree->eCoordType = (u8)eCoordType;
-  memcpy(pRtree->zDb, argv[1], nDb);
-  memcpy(pRtree->zName, argv[2], nName);
-
-
-  /* Create/Connect to the underlying relational database schema. If
-  ** that is successful, call tdsqlite3_declare_vtab() to configure
-  ** the r-tree table schema.
-  */
-  pSql = tdsqlite3_str_new(db);
-  tdsqlite3_str_appendf(pSql, "CREATE TABLE x(%.*s INT", 
-                      rtreeTokenLength(argv[3]), argv[3]);
-  for(ii=4; ii<argc; ii++){
-    const char *zArg = argv[ii];
-    if( zArg[0]=='+' ){
-      pRtree->nAux++;
-      tdsqlite3_str_appendf(pSql, ",%.*s", rtreeTokenLength(zArg+1), zArg+1);
-    }else if( pRtree->nAux>0 ){
-      break;
-    }else{
-      pRtree->nDim2++;
-      tdsqlite3_str_appendf(pSql, ",%.*s NUM", rtreeTokenLength(zArg), zArg);
-    }
-  }
-  tdsqlite3_str_appendf(pSql, ");");
-  zSql = tdsqlite3_str_finish(pSql);
-  if( !zSql ){
-    rc = SQLITE_NOMEM;
-  }else if( ii<argc ){
-    *pzErr = tdsqlite3_mprintf("%s", aErrMsg[4]);
-    rc = SQLITE_ERROR;
-  }else if( SQLITE_OK!=(rc = tdsqlite3_declare_vtab(db, zSql)) ){
-    *pzErr = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-  }
-  tdsqlite3_free(zSql);
-  if( rc ) goto rtreeInit_fail;
-  pRtree->nDim = pRtree->nDim2/2;
-  if( pRtree->nDim<1 ){
-    iErr = 2;
-  }else if( pRtree->nDim2>RTREE_MAX_DIMENSIONS*2 ){
-    iErr = 3;
-  }else if( pRtree->nDim2 % 2 ){
-    iErr = 1;
-  }else{
-    iErr = 0;
-  }
-  if( iErr ){
-    *pzErr = tdsqlite3_mprintf("%s", aErrMsg[iErr]);
-    goto rtreeInit_fail;
-  }
-  pRtree->nBytesPerCell = 8 + pRtree->nDim2*4;
-
-  /* Figure out the node size to use. */
-  rc = getNodeSize(db, pRtree, isCreate, pzErr);
-  if( rc ) goto rtreeInit_fail;
-  rc = rtreeSqlInit(pRtree, db, argv[1], argv[2], isCreate);
-  if( rc ){
-    *pzErr = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-    goto rtreeInit_fail;
-  }
-
-  *ppVtab = (tdsqlite3_vtab *)pRtree;
-  return SQLITE_OK;
-
-rtreeInit_fail:
-  if( rc==SQLITE_OK ) rc = SQLITE_ERROR;
-  assert( *ppVtab==0 );
-  assert( pRtree->nBusy==1 );
-  rtreeRelease(pRtree);
-  return rc;
-}
-
-
-/*
-** Implementation of a scalar function that decodes r-tree nodes to
-** human readable strings. This can be used for debugging and analysis.
-**
-** The scalar function takes two arguments: (1) the number of dimensions
-** to the rtree (between 1 and 5, inclusive) and (2) a blob of data containing
-** an r-tree node.  For a two-dimensional r-tree structure called "rt", to
-** deserialize all nodes, a statement like:
-**
-**   SELECT rtreenode(2, data) FROM rt_node;
-**
-** The human readable string takes the form of a Tcl list with one
-** entry for each cell in the r-tree node. Each entry is itself a
-** list, containing the 8-byte rowid/pageno followed by the 
-** <num-dimension>*2 coordinates.
-*/
-static void rtreenode(tdsqlite3_context *ctx, int nArg, tdsqlite3_value **apArg){
-  RtreeNode node;
-  Rtree tree;
-  int ii;
-  int nData;
-  int errCode;
-  tdsqlite3_str *pOut;
-
-  UNUSED_PARAMETER(nArg);
-  memset(&node, 0, sizeof(RtreeNode));
-  memset(&tree, 0, sizeof(Rtree));
-  tree.nDim = (u8)tdsqlite3_value_int(apArg[0]);
-  if( tree.nDim<1 || tree.nDim>5 ) return;
-  tree.nDim2 = tree.nDim*2;
-  tree.nBytesPerCell = 8 + 8 * tree.nDim;
-  node.zData = (u8 *)tdsqlite3_value_blob(apArg[1]);
-  nData = tdsqlite3_value_bytes(apArg[1]);
-  if( nData<4 ) return;
-  if( nData<NCELL(&node)*tree.nBytesPerCell ) return;
-
-  pOut = tdsqlite3_str_new(0);
-  for(ii=0; ii<NCELL(&node); ii++){
-    RtreeCell cell;
-    int jj;
-
-    nodeGetCell(&tree, &node, ii, &cell);
-    if( ii>0 ) tdsqlite3_str_append(pOut, " ", 1);
-    tdsqlite3_str_appendf(pOut, "{%lld", cell.iRowid);
-    for(jj=0; jj<tree.nDim2; jj++){
-#ifndef SQLITE_RTREE_INT_ONLY
-      tdsqlite3_str_appendf(pOut, " %g", (double)cell.aCoord[jj].f);
-#else
-      tdsqlite3_str_appendf(pOut, " %d", cell.aCoord[jj].i);
-#endif
-    }
-    tdsqlite3_str_append(pOut, "}", 1);
-  }
-  errCode = tdsqlite3_str_errcode(pOut);
-  tdsqlite3_result_text(ctx, tdsqlite3_str_finish(pOut), -1, tdsqlite3_free);
-  tdsqlite3_result_error_code(ctx, errCode);
-}
-
-/* This routine implements an SQL function that returns the "depth" parameter
-** from the front of a blob that is an r-tree node.  For example:
-**
-**     SELECT rtreedepth(data) FROM rt_node WHERE nodeno=1;
-**
-** The depth value is 0 for all nodes other than the root node, and the root
-** node always has nodeno=1, so the example above is the primary use for this
-** routine.  This routine is intended for testing and analysis only.
-*/
-static void rtreedepth(tdsqlite3_context *ctx, int nArg, tdsqlite3_value **apArg){
-  UNUSED_PARAMETER(nArg);
-  if( tdsqlite3_value_type(apArg[0])!=SQLITE_BLOB 
-   || tdsqlite3_value_bytes(apArg[0])<2
-  ){
-    tdsqlite3_result_error(ctx, "Invalid argument to rtreedepth()", -1); 
-  }else{
-    u8 *zBlob = (u8 *)tdsqlite3_value_blob(apArg[0]);
-    tdsqlite3_result_int(ctx, readInt16(zBlob));
-  }
-}
-
-/*
-** Context object passed between the various routines that make up the
-** implementation of integrity-check function rtreecheck().
-*/
-typedef struct RtreeCheck RtreeCheck;
-struct RtreeCheck {
-  tdsqlite3 *db;                    /* Database handle */
-  const char *zDb;                /* Database containing rtree table */
-  const char *zTab;               /* Name of rtree table */
-  int bInt;                       /* True for rtree_i32 table */
-  int nDim;                       /* Number of dimensions for this rtree tbl */
-  tdsqlite3_stmt *pGetNode;         /* Statement used to retrieve nodes */
-  tdsqlite3_stmt *aCheckMapping[2]; /* Statements to query %_parent/%_rowid */
-  int nLeaf;                      /* Number of leaf cells in table */
-  int nNonLeaf;                   /* Number of non-leaf cells in table */
-  int rc;                         /* Return code */
-  char *zReport;                  /* Message to report */
-  int nErr;                       /* Number of lines in zReport */
-};
-
-#define RTREE_CHECK_MAX_ERROR 100
-
-/*
-** Reset SQL statement pStmt. If the tdsqlite3_reset() call returns an error,
-** and RtreeCheck.rc==SQLITE_OK, set RtreeCheck.rc to the error code.
-*/
-static void rtreeCheckReset(RtreeCheck *pCheck, tdsqlite3_stmt *pStmt){
-  int rc = tdsqlite3_reset(pStmt);
-  if( pCheck->rc==SQLITE_OK ) pCheck->rc = rc;
-}
-
-/*
-** The second and subsequent arguments to this function are a format string
-** and printf style arguments. This function formats the string and attempts
-** to compile it as an SQL statement.
-**
-** If successful, a pointer to the new SQL statement is returned. Otherwise,
-** NULL is returned and an error code left in RtreeCheck.rc.
-*/
-static tdsqlite3_stmt *rtreeCheckPrepare(
-  RtreeCheck *pCheck,             /* RtreeCheck object */
-  const char *zFmt, ...           /* Format string and trailing args */
-){
-  va_list ap;
-  char *z;
-  tdsqlite3_stmt *pRet = 0;
-
-  va_start(ap, zFmt);
-  z = tdsqlite3_vmprintf(zFmt, ap);
-
-  if( pCheck->rc==SQLITE_OK ){
-    if( z==0 ){
-      pCheck->rc = SQLITE_NOMEM;
-    }else{
-      pCheck->rc = tdsqlite3_prepare_v2(pCheck->db, z, -1, &pRet, 0);
-    }
-  }
-
-  tdsqlite3_free(z);
-  va_end(ap);
-  return pRet;
-}
-
-/*
-** The second and subsequent arguments to this function are a printf()
-** style format string and arguments. This function formats the string and
-** appends it to the report being accumuated in pCheck.
-*/
-static void rtreeCheckAppendMsg(RtreeCheck *pCheck, const char *zFmt, ...){
-  va_list ap;
-  va_start(ap, zFmt);
-  if( pCheck->rc==SQLITE_OK && pCheck->nErr<RTREE_CHECK_MAX_ERROR ){
-    char *z = tdsqlite3_vmprintf(zFmt, ap);
-    if( z==0 ){
-      pCheck->rc = SQLITE_NOMEM;
-    }else{
-      pCheck->zReport = tdsqlite3_mprintf("%z%s%z", 
-          pCheck->zReport, (pCheck->zReport ? "\n" : ""), z
-      );
-      if( pCheck->zReport==0 ){
-        pCheck->rc = SQLITE_NOMEM;
-      }
-    }
-    pCheck->nErr++;
-  }
-  va_end(ap);
-}
-
-/*
-** This function is a no-op if there is already an error code stored
-** in the RtreeCheck object indicated by the first argument. NULL is
-** returned in this case.
-**
-** Otherwise, the contents of rtree table node iNode are loaded from
-** the database and copied into a buffer obtained from tdsqlite3_malloc().
-** If no error occurs, a pointer to the buffer is returned and (*pnNode)
-** is set to the size of the buffer in bytes.
-**
-** Or, if an error does occur, NULL is returned and an error code left
-** in the RtreeCheck object. The final value of *pnNode is undefined in
-** this case.
-*/
-static u8 *rtreeCheckGetNode(RtreeCheck *pCheck, i64 iNode, int *pnNode){
-  u8 *pRet = 0;                   /* Return value */
-
-  if( pCheck->rc==SQLITE_OK && pCheck->pGetNode==0 ){
-    pCheck->pGetNode = rtreeCheckPrepare(pCheck,
-        "SELECT data FROM %Q.'%q_node' WHERE nodeno=?", 
-        pCheck->zDb, pCheck->zTab
-    );
-  }
-
-  if( pCheck->rc==SQLITE_OK ){
-    tdsqlite3_bind_int64(pCheck->pGetNode, 1, iNode);
-    if( tdsqlite3_step(pCheck->pGetNode)==SQLITE_ROW ){
-      int nNode = tdsqlite3_column_bytes(pCheck->pGetNode, 0);
-      const u8 *pNode = (const u8*)tdsqlite3_column_blob(pCheck->pGetNode, 0);
-      pRet = tdsqlite3_malloc64(nNode);
-      if( pRet==0 ){
-        pCheck->rc = SQLITE_NOMEM;
-      }else{
-        memcpy(pRet, pNode, nNode);
-        *pnNode = nNode;
-      }
-    }
-    rtreeCheckReset(pCheck, pCheck->pGetNode);
-    if( pCheck->rc==SQLITE_OK && pRet==0 ){
-      rtreeCheckAppendMsg(pCheck, "Node %lld missing from database", iNode);
-    }
-  }
-
-  return pRet;
-}
-
-/*
-** This function is used to check that the %_parent (if bLeaf==0) or %_rowid
-** (if bLeaf==1) table contains a specified entry. The schemas of the
-** two tables are:
-**
-**   CREATE TABLE %_parent(nodeno INTEGER PRIMARY KEY, parentnode INTEGER)
-**   CREATE TABLE %_rowid(rowid INTEGER PRIMARY KEY, nodeno INTEGER, ...)
-**
-** In both cases, this function checks that there exists an entry with
-** IPK value iKey and the second column set to iVal.
-**
-*/
-static void rtreeCheckMapping(
-  RtreeCheck *pCheck,             /* RtreeCheck object */
-  int bLeaf,                      /* True for a leaf cell, false for interior */
-  i64 iKey,                       /* Key for mapping */
-  i64 iVal                        /* Expected value for mapping */
-){
-  int rc;
-  tdsqlite3_stmt *pStmt;
-  const char *azSql[2] = {
-    "SELECT parentnode FROM %Q.'%q_parent' WHERE nodeno=?1",
-    "SELECT nodeno FROM %Q.'%q_rowid' WHERE rowid=?1"
-  };
-
-  assert( bLeaf==0 || bLeaf==1 );
-  if( pCheck->aCheckMapping[bLeaf]==0 ){
-    pCheck->aCheckMapping[bLeaf] = rtreeCheckPrepare(pCheck,
-        azSql[bLeaf], pCheck->zDb, pCheck->zTab
-    );
-  }
-  if( pCheck->rc!=SQLITE_OK ) return;
-
-  pStmt = pCheck->aCheckMapping[bLeaf];
-  tdsqlite3_bind_int64(pStmt, 1, iKey);
-  rc = tdsqlite3_step(pStmt);
-  if( rc==SQLITE_DONE ){
-    rtreeCheckAppendMsg(pCheck, "Mapping (%lld -> %lld) missing from %s table",
-        iKey, iVal, (bLeaf ? "%_rowid" : "%_parent")
-    );
-  }else if( rc==SQLITE_ROW ){
-    i64 ii = tdsqlite3_column_int64(pStmt, 0);
-    if( ii!=iVal ){
-      rtreeCheckAppendMsg(pCheck, 
-          "Found (%lld -> %lld) in %s table, expected (%lld -> %lld)",
-          iKey, ii, (bLeaf ? "%_rowid" : "%_parent"), iKey, iVal
-      );
-    }
-  }
-  rtreeCheckReset(pCheck, pStmt);
-}
-
-/*
-** Argument pCell points to an array of coordinates stored on an rtree page.
-** This function checks that the coordinates are internally consistent (no
-** x1>x2 conditions) and adds an error message to the RtreeCheck object
-** if they are not.
-**
-** Additionally, if pParent is not NULL, then it is assumed to point to
-** the array of coordinates on the parent page that bound the page 
-** containing pCell. In this case it is also verified that the two
-** sets of coordinates are mutually consistent and an error message added
-** to the RtreeCheck object if they are not.
-*/
-static void rtreeCheckCellCoord(
-  RtreeCheck *pCheck, 
-  i64 iNode,                      /* Node id to use in error messages */
-  int iCell,                      /* Cell number to use in error messages */
-  u8 *pCell,                      /* Pointer to cell coordinates */
-  u8 *pParent                     /* Pointer to parent coordinates */
-){
-  RtreeCoord c1, c2;
-  RtreeCoord p1, p2;
-  int i;
-
-  for(i=0; i<pCheck->nDim; i++){
-    readCoord(&pCell[4*2*i], &c1);
-    readCoord(&pCell[4*(2*i + 1)], &c2);
-
-    /* printf("%e, %e\n", c1.u.f, c2.u.f); */
-    if( pCheck->bInt ? c1.i>c2.i : c1.f>c2.f ){
-      rtreeCheckAppendMsg(pCheck, 
-          "Dimension %d of cell %d on node %lld is corrupt", i, iCell, iNode
-      );
-    }
-
-    if( pParent ){
-      readCoord(&pParent[4*2*i], &p1);
-      readCoord(&pParent[4*(2*i + 1)], &p2);
-
-      if( (pCheck->bInt ? c1.i<p1.i : c1.f<p1.f) 
-       || (pCheck->bInt ? c2.i>p2.i : c2.f>p2.f)
-      ){
-        rtreeCheckAppendMsg(pCheck, 
-            "Dimension %d of cell %d on node %lld is corrupt relative to parent"
-            , i, iCell, iNode
-        );
-      }
-    }
-  }
-}
-
-/*
-** Run rtreecheck() checks on node iNode, which is at depth iDepth within
-** the r-tree structure. Argument aParent points to the array of coordinates
-** that bound node iNode on the parent node.
-**
-** If any problems are discovered, an error message is appended to the
-** report accumulated in the RtreeCheck object.
-*/
-static void rtreeCheckNode(
-  RtreeCheck *pCheck,
-  int iDepth,                     /* Depth of iNode (0==leaf) */
-  u8 *aParent,                    /* Buffer containing parent coords */
-  i64 iNode                       /* Node to check */
-){
-  u8 *aNode = 0;
-  int nNode = 0;
-
-  assert( iNode==1 || aParent!=0 );
-  assert( pCheck->nDim>0 );
-
-  aNode = rtreeCheckGetNode(pCheck, iNode, &nNode);
-  if( aNode ){
-    if( nNode<4 ){
-      rtreeCheckAppendMsg(pCheck, 
-          "Node %lld is too small (%d bytes)", iNode, nNode
-      );
-    }else{
-      int nCell;                  /* Number of cells on page */
-      int i;                      /* Used to iterate through cells */
-      if( aParent==0 ){
-        iDepth = readInt16(aNode);
-        if( iDepth>RTREE_MAX_DEPTH ){
-          rtreeCheckAppendMsg(pCheck, "Rtree depth out of range (%d)", iDepth);
-          tdsqlite3_free(aNode);
-          return;
-        }
-      }
-      nCell = readInt16(&aNode[2]);
-      if( (4 + nCell*(8 + pCheck->nDim*2*4))>nNode ){
-        rtreeCheckAppendMsg(pCheck, 
-            "Node %lld is too small for cell count of %d (%d bytes)", 
-            iNode, nCell, nNode
-        );
-      }else{
-        for(i=0; i<nCell; i++){
-          u8 *pCell = &aNode[4 + i*(8 + pCheck->nDim*2*4)];
-          i64 iVal = readInt64(pCell);
-          rtreeCheckCellCoord(pCheck, iNode, i, &pCell[8], aParent);
-
-          if( iDepth>0 ){
-            rtreeCheckMapping(pCheck, 0, iVal, iNode);
-            rtreeCheckNode(pCheck, iDepth-1, &pCell[8], iVal);
-            pCheck->nNonLeaf++;
-          }else{
-            rtreeCheckMapping(pCheck, 1, iVal, iNode);
-            pCheck->nLeaf++;
-          }
-        }
-      }
-    }
-    tdsqlite3_free(aNode);
-  }
-}
-
-/*
-** The second argument to this function must be either "_rowid" or
-** "_parent". This function checks that the number of entries in the
-** %_rowid or %_parent table is exactly nExpect. If not, it adds
-** an error message to the report in the RtreeCheck object indicated
-** by the first argument.
-*/
-static void rtreeCheckCount(RtreeCheck *pCheck, const char *zTbl, i64 nExpect){
-  if( pCheck->rc==SQLITE_OK ){
-    tdsqlite3_stmt *pCount;
-    pCount = rtreeCheckPrepare(pCheck, "SELECT count(*) FROM %Q.'%q%s'",
-        pCheck->zDb, pCheck->zTab, zTbl
-    );
-    if( pCount ){
-      if( tdsqlite3_step(pCount)==SQLITE_ROW ){
-        i64 nActual = tdsqlite3_column_int64(pCount, 0);
-        if( nActual!=nExpect ){
-          rtreeCheckAppendMsg(pCheck, "Wrong number of entries in %%%s table"
-              " - expected %lld, actual %lld" , zTbl, nExpect, nActual
-          );
-        }
-      }
-      pCheck->rc = tdsqlite3_finalize(pCount);
-    }
-  }
-}
-
-/*
-** This function does the bulk of the work for the rtree integrity-check.
-** It is called by rtreecheck(), which is the SQL function implementation.
-*/
-static int rtreeCheckTable(
-  tdsqlite3 *db,                    /* Database handle to access db through */
-  const char *zDb,                /* Name of db ("main", "temp" etc.) */
-  const char *zTab,               /* Name of rtree table to check */
-  char **pzReport                 /* OUT: tdsqlite3_malloc'd report text */
-){
-  RtreeCheck check;               /* Common context for various routines */
-  tdsqlite3_stmt *pStmt = 0;        /* Used to find column count of rtree table */
-  int bEnd = 0;                   /* True if transaction should be closed */
-  int nAux = 0;                   /* Number of extra columns. */
-
-  /* Initialize the context object */
-  memset(&check, 0, sizeof(check));
-  check.db = db;
-  check.zDb = zDb;
-  check.zTab = zTab;
-
-  /* If there is not already an open transaction, open one now. This is
-  ** to ensure that the queries run as part of this integrity-check operate
-  ** on a consistent snapshot.  */
-  if( tdsqlite3_get_autocommit(db) ){
-    check.rc = tdsqlite3_exec(db, "BEGIN", 0, 0, 0);
-    bEnd = 1;
-  }
-
-  /* Find the number of auxiliary columns */
-  if( check.rc==SQLITE_OK ){
-    pStmt = rtreeCheckPrepare(&check, "SELECT * FROM %Q.'%q_rowid'", zDb, zTab);
-    if( pStmt ){
-      nAux = tdsqlite3_column_count(pStmt) - 2;
-      tdsqlite3_finalize(pStmt);
-    }
-    check.rc = SQLITE_OK;
-  }
-
-  /* Find number of dimensions in the rtree table. */
-  pStmt = rtreeCheckPrepare(&check, "SELECT * FROM %Q.%Q", zDb, zTab);
-  if( pStmt ){
-    int rc;
-    check.nDim = (tdsqlite3_column_count(pStmt) - 1 - nAux) / 2;
-    if( check.nDim<1 ){
-      rtreeCheckAppendMsg(&check, "Schema corrupt or not an rtree");
-    }else if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      check.bInt = (tdsqlite3_column_type(pStmt, 1)==SQLITE_INTEGER);
-    }
-    rc = tdsqlite3_finalize(pStmt);
-    if( rc!=SQLITE_CORRUPT ) check.rc = rc;
-  }
-
-  /* Do the actual integrity-check */
-  if( check.nDim>=1 ){
-    if( check.rc==SQLITE_OK ){
-      rtreeCheckNode(&check, 0, 0, 1);
-    }
-    rtreeCheckCount(&check, "_rowid", check.nLeaf);
-    rtreeCheckCount(&check, "_parent", check.nNonLeaf);
-  }
-
-  /* Finalize SQL statements used by the integrity-check */
-  tdsqlite3_finalize(check.pGetNode);
-  tdsqlite3_finalize(check.aCheckMapping[0]);
-  tdsqlite3_finalize(check.aCheckMapping[1]);
-
-  /* If one was opened, close the transaction */
-  if( bEnd ){
-    int rc = tdsqlite3_exec(db, "END", 0, 0, 0);
-    if( check.rc==SQLITE_OK ) check.rc = rc;
-  }
-  *pzReport = check.zReport;
-  return check.rc;
-}
-
-/*
-** Usage:
-**
-**   rtreecheck(<rtree-table>);
-**   rtreecheck(<database>, <rtree-table>);
-**
-** Invoking this SQL function runs an integrity-check on the named rtree
-** table. The integrity-check verifies the following:
-**
-**   1. For each cell in the r-tree structure (%_node table), that:
-**
-**       a) for each dimension, (coord1 <= coord2).
-**
-**       b) unless the cell is on the root node, that the cell is bounded
-**          by the parent cell on the parent node.
-**
-**       c) for leaf nodes, that there is an entry in the %_rowid 
-**          table corresponding to the cell's rowid value that 
-**          points to the correct node.
-**
-**       d) for cells on non-leaf nodes, that there is an entry in the 
-**          %_parent table mapping from the cell's child node to the
-**          node that it resides on.
-**
-**   2. That there are the same number of entries in the %_rowid table
-**      as there are leaf cells in the r-tree structure, and that there
-**      is a leaf cell that corresponds to each entry in the %_rowid table.
-**
-**   3. That there are the same number of entries in the %_parent table
-**      as there are non-leaf cells in the r-tree structure, and that 
-**      there is a non-leaf cell that corresponds to each entry in the 
-**      %_parent table.
-*/
-static void rtreecheck(
-  tdsqlite3_context *ctx, 
-  int nArg, 
-  tdsqlite3_value **apArg
-){
-  if( nArg!=1 && nArg!=2 ){
-    tdsqlite3_result_error(ctx, 
-        "wrong number of arguments to function rtreecheck()", -1
-    );
-  }else{
-    int rc;
-    char *zReport = 0;
-    const char *zDb = (const char*)tdsqlite3_value_text(apArg[0]);
-    const char *zTab;
-    if( nArg==1 ){
-      zTab = zDb;
-      zDb = "main";
-    }else{
-      zTab = (const char*)tdsqlite3_value_text(apArg[1]);
-    }
-    rc = rtreeCheckTable(tdsqlite3_context_db_handle(ctx), zDb, zTab, &zReport);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_result_text(ctx, zReport ? zReport : "ok", -1, SQLITE_TRANSIENT);
-    }else{
-      tdsqlite3_result_error_code(ctx, rc);
-    }
-    tdsqlite3_free(zReport);
-  }
-}
-
-/* Conditionally include the geopoly code */
-#ifdef SQLITE_ENABLE_GEOPOLY
-/************** Include geopoly.c in the middle of rtree.c *******************/
-/************** Begin file geopoly.c *****************************************/
-/*
-** 2018-05-25
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file implements an alternative R-Tree virtual table that
-** uses polygons to express the boundaries of 2-dimensional objects.
-**
-** This file is #include-ed onto the end of "rtree.c" so that it has
-** access to all of the R-Tree internals.
-*/
-/* #include <stdlib.h> */
-
-/* Enable -DGEOPOLY_ENABLE_DEBUG for debugging facilities */
-#ifdef GEOPOLY_ENABLE_DEBUG
-  static int geo_debug = 0;
-# define GEODEBUG(X) if(geo_debug)printf X
-#else
-# define GEODEBUG(X)
-#endif
-
-#ifndef JSON_NULL   /* The following stuff repeats things found in json1 */
-/*
-** Versions of isspace(), isalnum() and isdigit() to which it is safe
-** to pass signed char values.
-*/
-#ifdef tdsqlite3Isdigit
-   /* Use the SQLite core versions if this routine is part of the
-   ** SQLite amalgamation */
-#  define safe_isdigit(x)  tdsqlite3Isdigit(x)
-#  define safe_isalnum(x)  tdsqlite3Isalnum(x)
-#  define safe_isxdigit(x) tdsqlite3Isxdigit(x)
-#else
-   /* Use the standard library for separate compilation */
-#include <ctype.h>  /* amalgamator: keep */
-#  define safe_isdigit(x)  isdigit((unsigned char)(x))
-#  define safe_isalnum(x)  isalnum((unsigned char)(x))
-#  define safe_isxdigit(x) isxdigit((unsigned char)(x))
-#endif
-
-/*
-** Growing our own isspace() routine this way is twice as fast as
-** the library isspace() function.
-*/
-static const char geopolyIsSpace[] = {
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 1, 1, 0, 0, 1, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  1, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
-};
-#define safe_isspace(x) (geopolyIsSpace[(unsigned char)x])
-#endif /* JSON NULL - back to original code */
-
-/* Compiler and version */
-#ifndef GCC_VERSION
-#if defined(__GNUC__) && !defined(SQLITE_DISABLE_INTRINSIC)
-# define GCC_VERSION (__GNUC__*1000000+__GNUC_MINOR__*1000+__GNUC_PATCHLEVEL__)
-#else
-# define GCC_VERSION 0
-#endif
-#endif
-#ifndef MSVC_VERSION
-#if defined(_MSC_VER) && !defined(SQLITE_DISABLE_INTRINSIC)
-# define MSVC_VERSION _MSC_VER
-#else
-# define MSVC_VERSION 0
-#endif
-#endif
-
-/* Datatype for coordinates
-*/
-typedef float GeoCoord;
-
-/*
-** Internal representation of a polygon.
-**
-** The polygon consists of a sequence of vertexes.  There is a line
-** segment between each pair of vertexes, and one final segment from
-** the last vertex back to the first.  (This differs from the GeoJSON
-** standard in which the final vertex is a repeat of the first.)
-**
-** The polygon follows the right-hand rule.  The area to the right of
-** each segment is "outside" and the area to the left is "inside".
-**
-** The on-disk representation consists of a 4-byte header followed by
-** the values.  The 4-byte header is:
-**
-**      encoding    (1 byte)   0=big-endian, 1=little-endian
-**      nvertex     (3 bytes)  Number of vertexes as a big-endian integer
-**
-** Enough space is allocated for 4 coordinates, to work around over-zealous
-** warnings coming from some compiler (notably, clang). In reality, the size
-** of each GeoPoly memory allocate is adjusted as necessary so that the
-** GeoPoly.a[] array at the end is the appropriate size.
-*/
-typedef struct GeoPoly GeoPoly;
-struct GeoPoly {
-  int nVertex;          /* Number of vertexes */
-  unsigned char hdr[4]; /* Header for on-disk representation */
-  GeoCoord a[8];        /* 2*nVertex values. X (longitude) first, then Y */
-};
-
-/* The size of a memory allocation needed for a GeoPoly object sufficient
-** to hold N coordinate pairs.
-*/
-#define GEOPOLY_SZ(N)  (sizeof(GeoPoly) + sizeof(GeoCoord)*2*((N)-4))
-
-/* Macros to access coordinates of a GeoPoly.
-** We have to use these macros, rather than just say p->a[i] in order
-** to silence (incorrect) UBSAN warnings if the array index is too large.
-*/
-#define GeoX(P,I)  (((GeoCoord*)(P)->a)[(I)*2])
-#define GeoY(P,I)  (((GeoCoord*)(P)->a)[(I)*2+1])
-
-
-/*
-** State of a parse of a GeoJSON input.
-*/
-typedef struct GeoParse GeoParse;
-struct GeoParse {
-  const unsigned char *z;   /* Unparsed input */
-  int nVertex;              /* Number of vertexes in a[] */
-  int nAlloc;               /* Space allocated to a[] */
-  int nErr;                 /* Number of errors encountered */
-  GeoCoord *a;          /* Array of vertexes.  From tdsqlite3_malloc64() */
-};
-
-/* Do a 4-byte byte swap */
-static void geopolySwab32(unsigned char *a){
-  unsigned char t = a[0];
-  a[0] = a[3];
-  a[3] = t;
-  t = a[1];
-  a[1] = a[2];
-  a[2] = t;
-}
-
-/* Skip whitespace.  Return the next non-whitespace character. */
-static char geopolySkipSpace(GeoParse *p){
-  while( safe_isspace(p->z[0]) ) p->z++;
-  return p->z[0];
-}
-
-/* Parse out a number.  Write the value into *pVal if pVal!=0.
-** return non-zero on success and zero if the next token is not a number.
-*/
-static int geopolyParseNumber(GeoParse *p, GeoCoord *pVal){
-  char c = geopolySkipSpace(p);
-  const unsigned char *z = p->z;
-  int j = 0;
-  int seenDP = 0;
-  int seenE = 0;
-  if( c=='-' ){
-    j = 1;
-    c = z[j];
-  }
-  if( c=='0' && z[j+1]>='0' && z[j+1]<='9' ) return 0;
-  for(;; j++){
-    c = z[j];
-    if( safe_isdigit(c) ) continue;
-    if( c=='.' ){
-      if( z[j-1]=='-' ) return 0;
-      if( seenDP ) return 0;
-      seenDP = 1;
-      continue;
-    }
-    if( c=='e' || c=='E' ){
-      if( z[j-1]<'0' ) return 0;
-      if( seenE ) return -1;
-      seenDP = seenE = 1;
-      c = z[j+1];
-      if( c=='+' || c=='-' ){
-        j++;
-        c = z[j+1];
-      }
-      if( c<'0' || c>'9' ) return 0;
-      continue;
-    }
-    break;
-  }
-  if( z[j-1]<'0' ) return 0;
-  if( pVal ){
-#ifdef SQLITE_AMALGAMATION
-     /* The tdsqlite3AtoF() routine is much much faster than atof(), if it
-     ** is available */
-     double r;
-     (void)tdsqlite3AtoF((const char*)p->z, &r, j, SQLITE_UTF8);
-     *pVal = r;
-#else
-     *pVal = (GeoCoord)atof((const char*)p->z);
-#endif
-  }
-  p->z += j;
-  return 1;
-}
-
-/*
-** If the input is a well-formed JSON array of coordinates with at least
-** four coordinates and where each coordinate is itself a two-value array,
-** then convert the JSON into a GeoPoly object and return a pointer to
-** that object.
-**
-** If any error occurs, return NULL.
-*/
-static GeoPoly *geopolyParseJson(const unsigned char *z, int *pRc){
-  GeoParse s;
-  int rc = SQLITE_OK;
-  memset(&s, 0, sizeof(s));
-  s.z = z;
-  if( geopolySkipSpace(&s)=='[' ){
-    s.z++;
-    while( geopolySkipSpace(&s)=='[' ){
-      int ii = 0;
-      char c;
-      s.z++;
-      if( s.nVertex>=s.nAlloc ){
-        GeoCoord *aNew;
-        s.nAlloc = s.nAlloc*2 + 16;
-        aNew = tdsqlite3_realloc64(s.a, s.nAlloc*sizeof(GeoCoord)*2 );
-        if( aNew==0 ){
-          rc = SQLITE_NOMEM;
-          s.nErr++;
-          break;
-        }
-        s.a = aNew;
-      }
-      while( geopolyParseNumber(&s, ii<=1 ? &s.a[s.nVertex*2+ii] : 0) ){
-        ii++;
-        if( ii==2 ) s.nVertex++;
-        c = geopolySkipSpace(&s);
-        s.z++;
-        if( c==',' ) continue;
-        if( c==']' && ii>=2 ) break;
-        s.nErr++;
-        rc = SQLITE_ERROR;
-        goto parse_json_err;
-      }
-      if( geopolySkipSpace(&s)==',' ){
-        s.z++;
-        continue;
-      }
-      break;
-    }
-    if( geopolySkipSpace(&s)==']'
-     && s.nVertex>=4
-     && s.a[0]==s.a[s.nVertex*2-2]
-     && s.a[1]==s.a[s.nVertex*2-1]
-     && (s.z++, geopolySkipSpace(&s)==0)
-    ){
-      GeoPoly *pOut;
-      int x = 1;
-      s.nVertex--;  /* Remove the redundant vertex at the end */
-      pOut = tdsqlite3_malloc64( GEOPOLY_SZ((tdsqlite3_int64)s.nVertex) );
-      x = 1;
-      if( pOut==0 ) goto parse_json_err;
-      pOut->nVertex = s.nVertex;
-      memcpy(pOut->a, s.a, s.nVertex*2*sizeof(GeoCoord));
-      pOut->hdr[0] = *(unsigned char*)&x;
-      pOut->hdr[1] = (s.nVertex>>16)&0xff;
-      pOut->hdr[2] = (s.nVertex>>8)&0xff;
-      pOut->hdr[3] = s.nVertex&0xff;
-      tdsqlite3_free(s.a);
-      if( pRc ) *pRc = SQLITE_OK;
-      return pOut;
-    }else{
-      s.nErr++;
-      rc = SQLITE_ERROR;
-    }
-  }
-parse_json_err:
-  if( pRc ) *pRc = rc;
-  tdsqlite3_free(s.a);
-  return 0;
-}
-
-/*
-** Given a function parameter, try to interpret it as a polygon, either
-** in the binary format or JSON text.  Compute a GeoPoly object and
-** return a pointer to that object.  Or if the input is not a well-formed
-** polygon, put an error message in tdsqlite3_context and return NULL.
-*/
-static GeoPoly *geopolyFuncParam(
-  tdsqlite3_context *pCtx,      /* Context for error messages */
-  tdsqlite3_value *pVal,        /* The value to decode */
-  int *pRc                    /* Write error here */
-){
-  GeoPoly *p = 0;
-  int nByte;
-  if( tdsqlite3_value_type(pVal)==SQLITE_BLOB
-   && (nByte = tdsqlite3_value_bytes(pVal))>=(4+6*sizeof(GeoCoord))
-  ){
-    const unsigned char *a = tdsqlite3_value_blob(pVal);
-    int nVertex;
-    nVertex = (a[1]<<16) + (a[2]<<8) + a[3];
-    if( (a[0]==0 || a[0]==1)
-     && (nVertex*2*sizeof(GeoCoord) + 4)==(unsigned int)nByte
-    ){
-      p = tdsqlite3_malloc64( sizeof(*p) + (nVertex-1)*2*sizeof(GeoCoord) );
-      if( p==0 ){
-        if( pRc ) *pRc = SQLITE_NOMEM;
-        if( pCtx ) tdsqlite3_result_error_nomem(pCtx);
-      }else{
-        int x = 1;
-        p->nVertex = nVertex;
-        memcpy(p->hdr, a, nByte);
-        if( a[0] != *(unsigned char*)&x ){
-          int ii;
-          for(ii=0; ii<nVertex; ii++){
-            geopolySwab32((unsigned char*)&GeoX(p,ii));
-            geopolySwab32((unsigned char*)&GeoY(p,ii));
-          }
-          p->hdr[0] ^= 1;
-        }
-      }
-    }
-    if( pRc ) *pRc = SQLITE_OK;
-    return p;
-  }else if( tdsqlite3_value_type(pVal)==SQLITE_TEXT ){
-    const unsigned char *zJson = tdsqlite3_value_text(pVal);
-    if( zJson==0 ){
-      if( pRc ) *pRc = SQLITE_NOMEM;
-      return 0;
-    }
-    return geopolyParseJson(zJson, pRc);
-  }else{
-    if( pRc ) *pRc = SQLITE_ERROR;
-    return 0;
-  }
-}
-
-/*
-** Implementation of the geopoly_blob(X) function.
-**
-** If the input is a well-formed Geopoly BLOB or JSON string
-** then return the BLOB representation of the polygon.  Otherwise
-** return NULL.
-*/
-static void geopolyBlobFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
-  if( p ){
-    tdsqlite3_result_blob(context, p->hdr, 
-       4+8*p->nVertex, SQLITE_TRANSIENT);
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** SQL function:     geopoly_json(X)
-**
-** Interpret X as a polygon and render it as a JSON array
-** of coordinates.  Or, if X is not a valid polygon, return NULL.
-*/
-static void geopolyJsonFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
-  if( p ){
-    tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-    tdsqlite3_str *x = tdsqlite3_str_new(db);
-    int i;
-    tdsqlite3_str_append(x, "[", 1);
-    for(i=0; i<p->nVertex; i++){
-      tdsqlite3_str_appendf(x, "[%!g,%!g],", GeoX(p,i), GeoY(p,i));
-    }
-    tdsqlite3_str_appendf(x, "[%!g,%!g]]", GeoX(p,0), GeoY(p,0));
-    tdsqlite3_result_text(context, tdsqlite3_str_finish(x), -1, tdsqlite3_free);
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** SQL function:     geopoly_svg(X, ....)
-**
-** Interpret X as a polygon and render it as a SVG <polyline>.
-** Additional arguments are added as attributes to the <polyline>.
-*/
-static void geopolySvgFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p;
-  if( argc<1 ) return;
-  p = geopolyFuncParam(context, argv[0], 0);
-  if( p ){
-    tdsqlite3 *db = tdsqlite3_context_db_handle(context);
-    tdsqlite3_str *x = tdsqlite3_str_new(db);
-    int i;
-    char cSep = '\'';
-    tdsqlite3_str_appendf(x, "<polyline points=");
-    for(i=0; i<p->nVertex; i++){
-      tdsqlite3_str_appendf(x, "%c%g,%g", cSep, GeoX(p,i), GeoY(p,i));
-      cSep = ' ';
-    }
-    tdsqlite3_str_appendf(x, " %g,%g'", GeoX(p,0), GeoY(p,0));
-    for(i=1; i<argc; i++){
-      const char *z = (const char*)tdsqlite3_value_text(argv[i]);
-      if( z && z[0] ){
-        tdsqlite3_str_appendf(x, " %s", z);
-      }
-    }
-    tdsqlite3_str_appendf(x, "></polyline>");
-    tdsqlite3_result_text(context, tdsqlite3_str_finish(x), -1, tdsqlite3_free);
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** SQL Function:      geopoly_xform(poly, A, B, C, D, E, F)
-**
-** Transform and/or translate a polygon as follows:
-**
-**      x1 = A*x0 + B*y0 + E
-**      y1 = C*x0 + D*y0 + F
-**
-** For a translation:
-**
-**      geopoly_xform(poly, 1, 0, 0, 1, x-offset, y-offset)
-**
-** Rotate by R around the point (0,0):
-**
-**      geopoly_xform(poly, cos(R), sin(R), -sin(R), cos(R), 0, 0)
-*/
-static void geopolyXformFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
-  double A = tdsqlite3_value_double(argv[1]);
-  double B = tdsqlite3_value_double(argv[2]);
-  double C = tdsqlite3_value_double(argv[3]);
-  double D = tdsqlite3_value_double(argv[4]);
-  double E = tdsqlite3_value_double(argv[5]);
-  double F = tdsqlite3_value_double(argv[6]);
-  GeoCoord x1, y1, x0, y0;
-  int ii;
-  if( p ){
-    for(ii=0; ii<p->nVertex; ii++){
-      x0 = GeoX(p,ii);
-      y0 = GeoY(p,ii);
-      x1 = (GeoCoord)(A*x0 + B*y0 + E);
-      y1 = (GeoCoord)(C*x0 + D*y0 + F);
-      GeoX(p,ii) = x1;
-      GeoY(p,ii) = y1;
-    }
-    tdsqlite3_result_blob(context, p->hdr, 
-       4+8*p->nVertex, SQLITE_TRANSIENT);
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** Compute the area enclosed by the polygon.
-**
-** This routine can also be used to detect polygons that rotate in
-** the wrong direction.  Polygons are suppose to be counter-clockwise (CCW).
-** This routine returns a negative value for clockwise (CW) polygons.
-*/
-static double geopolyArea(GeoPoly *p){
-  double rArea = 0.0;
-  int ii;
-  for(ii=0; ii<p->nVertex-1; ii++){
-    rArea += (GeoX(p,ii) - GeoX(p,ii+1))           /* (x0 - x1) */
-              * (GeoY(p,ii) + GeoY(p,ii+1))        /* (y0 + y1) */
-              * 0.5;
-  }
-  rArea += (GeoX(p,ii) - GeoX(p,0))                /* (xN - x0) */
-           * (GeoY(p,ii) + GeoY(p,0))              /* (yN + y0) */
-           * 0.5;
-  return rArea;
-}
-
-/*
-** Implementation of the geopoly_area(X) function.
-**
-** If the input is a well-formed Geopoly BLOB then return the area
-** enclosed by the polygon.  If the polygon circulates clockwise instead
-** of counterclockwise (as it should) then return the negative of the
-** enclosed area.  Otherwise return NULL.
-*/
-static void geopolyAreaFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
-  if( p ){
-    tdsqlite3_result_double(context, geopolyArea(p));
-    tdsqlite3_free(p);
-  }            
-}
-
-/*
-** Implementation of the geopoly_ccw(X) function.
-**
-** If the rotation of polygon X is clockwise (incorrect) instead of
-** counter-clockwise (the correct winding order according to RFC7946)
-** then reverse the order of the vertexes in polygon X.  
-**
-** In other words, this routine returns a CCW polygon regardless of the
-** winding order of its input.
-**
-** Use this routine to sanitize historical inputs that that sometimes
-** contain polygons that wind in the wrong direction.
-*/
-static void geopolyCcwFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
-  if( p ){
-    if( geopolyArea(p)<0.0 ){
-      int ii, jj;
-      for(ii=1, jj=p->nVertex-1; ii<jj; ii++, jj--){
-        GeoCoord t = GeoX(p,ii);
-        GeoX(p,ii) = GeoX(p,jj);
-        GeoX(p,jj) = t;
-        t = GeoY(p,ii);
-        GeoY(p,ii) = GeoY(p,jj);
-        GeoY(p,jj) = t;
-      }
-    }
-    tdsqlite3_result_blob(context, p->hdr, 
-       4+8*p->nVertex, SQLITE_TRANSIENT);
-    tdsqlite3_free(p);
-  }            
-}
-
-#define GEOPOLY_PI 3.1415926535897932385
-
-/* Fast approximation for sine(X) for X between -0.5*pi and 2*pi
-*/
-static double geopolySine(double r){
-  assert( r>=-0.5*GEOPOLY_PI && r<=2.0*GEOPOLY_PI );
-  if( r>=1.5*GEOPOLY_PI ){
-    r -= 2.0*GEOPOLY_PI;
-  }
-  if( r>=0.5*GEOPOLY_PI ){
-    return -geopolySine(r-GEOPOLY_PI);
-  }else{
-    double r2 = r*r;
-    double r3 = r2*r;
-    double r5 = r3*r2;
-    return 0.9996949*r - 0.1656700*r3 + 0.0075134*r5;
-  }
-}
-
-/*
-** Function:   geopoly_regular(X,Y,R,N)
-**
-** Construct a simple, convex, regular polygon centered at X, Y
-** with circumradius R and with N sides.
-*/
-static void geopolyRegularFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  double x = tdsqlite3_value_double(argv[0]);
-  double y = tdsqlite3_value_double(argv[1]);
-  double r = tdsqlite3_value_double(argv[2]);
-  int n = tdsqlite3_value_int(argv[3]);
-  int i;
-  GeoPoly *p;
-
-  if( n<3 || r<=0.0 ) return;
-  if( n>1000 ) n = 1000;
-  p = tdsqlite3_malloc64( sizeof(*p) + (n-1)*2*sizeof(GeoCoord) );
-  if( p==0 ){
-    tdsqlite3_result_error_nomem(context);
-    return;
-  }
-  i = 1;
-  p->hdr[0] = *(unsigned char*)&i;
-  p->hdr[1] = 0;
-  p->hdr[2] = (n>>8)&0xff;
-  p->hdr[3] = n&0xff;
-  for(i=0; i<n; i++){
-    double rAngle = 2.0*GEOPOLY_PI*i/n;
-    GeoX(p,i) = x - r*geopolySine(rAngle-0.5*GEOPOLY_PI);
-    GeoY(p,i) = y + r*geopolySine(rAngle);
-  }
-  tdsqlite3_result_blob(context, p->hdr, 4+8*n, SQLITE_TRANSIENT);
-  tdsqlite3_free(p);
-}
-
-/*
-** If pPoly is a polygon, compute its bounding box. Then:
-**
-**    (1) if aCoord!=0 store the bounding box in aCoord, returning NULL
-**    (2) otherwise, compute a GeoPoly for the bounding box and return the
-**        new GeoPoly
-**
-** If pPoly is NULL but aCoord is not NULL, then compute a new GeoPoly from
-** the bounding box in aCoord and return a pointer to that GeoPoly.
-*/
-static GeoPoly *geopolyBBox(
-  tdsqlite3_context *context,   /* For recording the error */
-  tdsqlite3_value *pPoly,       /* The polygon */
-  RtreeCoord *aCoord,         /* Results here */
-  int *pRc                    /* Error code here */
-){
-  GeoPoly *pOut = 0;
-  GeoPoly *p;
-  float mnX, mxX, mnY, mxY;
-  if( pPoly==0 && aCoord!=0 ){
-    p = 0;
-    mnX = aCoord[0].f;
-    mxX = aCoord[1].f;
-    mnY = aCoord[2].f;
-    mxY = aCoord[3].f;
-    goto geopolyBboxFill;
-  }else{
-    p = geopolyFuncParam(context, pPoly, pRc);
-  }
-  if( p ){
-    int ii;
-    mnX = mxX = GeoX(p,0);
-    mnY = mxY = GeoY(p,0);
-    for(ii=1; ii<p->nVertex; ii++){
-      double r = GeoX(p,ii);
-      if( r<mnX ) mnX = (float)r;
-      else if( r>mxX ) mxX = (float)r;
-      r = GeoY(p,ii);
-      if( r<mnY ) mnY = (float)r;
-      else if( r>mxY ) mxY = (float)r;
-    }
-    if( pRc ) *pRc = SQLITE_OK;
-    if( aCoord==0 ){
-      geopolyBboxFill:
-      pOut = tdsqlite3_realloc64(p, GEOPOLY_SZ(4));
-      if( pOut==0 ){
-        tdsqlite3_free(p);
-        if( context ) tdsqlite3_result_error_nomem(context);
-        if( pRc ) *pRc = SQLITE_NOMEM;
-        return 0;
-      }
-      pOut->nVertex = 4;
-      ii = 1;
-      pOut->hdr[0] = *(unsigned char*)&ii;
-      pOut->hdr[1] = 0;
-      pOut->hdr[2] = 0;
-      pOut->hdr[3] = 4;
-      GeoX(pOut,0) = mnX;
-      GeoY(pOut,0) = mnY;
-      GeoX(pOut,1) = mxX;
-      GeoY(pOut,1) = mnY;
-      GeoX(pOut,2) = mxX;
-      GeoY(pOut,2) = mxY;
-      GeoX(pOut,3) = mnX;
-      GeoY(pOut,3) = mxY;
-    }else{
-      tdsqlite3_free(p);
-      aCoord[0].f = mnX;
-      aCoord[1].f = mxX;
-      aCoord[2].f = mnY;
-      aCoord[3].f = mxY;
-    }
-  }
-  return pOut;
-}
-
-/*
-** Implementation of the geopoly_bbox(X) SQL function.
-*/
-static void geopolyBBoxFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p = geopolyBBox(context, argv[0], 0, 0);
-  if( p ){
-    tdsqlite3_result_blob(context, p->hdr, 
-       4+8*p->nVertex, SQLITE_TRANSIENT);
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** State vector for the geopoly_group_bbox() aggregate function.
-*/
-typedef struct GeoBBox GeoBBox;
-struct GeoBBox {
-  int isInit;
-  RtreeCoord a[4];
-};
-
-
-/*
-** Implementation of the geopoly_group_bbox(X) aggregate SQL function.
-*/
-static void geopolyBBoxStep(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  RtreeCoord a[4];
-  int rc = SQLITE_OK;
-  (void)geopolyBBox(context, argv[0], a, &rc);
-  if( rc==SQLITE_OK ){
-    GeoBBox *pBBox;
-    pBBox = (GeoBBox*)tdsqlite3_aggregate_context(context, sizeof(*pBBox));
-    if( pBBox==0 ) return;
-    if( pBBox->isInit==0 ){
-      pBBox->isInit = 1;
-      memcpy(pBBox->a, a, sizeof(RtreeCoord)*4);
-    }else{
-      if( a[0].f < pBBox->a[0].f ) pBBox->a[0] = a[0];
-      if( a[1].f > pBBox->a[1].f ) pBBox->a[1] = a[1];
-      if( a[2].f < pBBox->a[2].f ) pBBox->a[2] = a[2];
-      if( a[3].f > pBBox->a[3].f ) pBBox->a[3] = a[3];
-    }
-  }
-}
-static void geopolyBBoxFinal(
-  tdsqlite3_context *context
-){
-  GeoPoly *p;
-  GeoBBox *pBBox;
-  pBBox = (GeoBBox*)tdsqlite3_aggregate_context(context, 0);
-  if( pBBox==0 ) return;
-  p = geopolyBBox(context, 0, pBBox->a, 0);
-  if( p ){
-    tdsqlite3_result_blob(context, p->hdr, 
-       4+8*p->nVertex, SQLITE_TRANSIENT);
-    tdsqlite3_free(p);
-  }
-}
-
-
-/*
-** Determine if point (x0,y0) is beneath line segment (x1,y1)->(x2,y2).
-** Returns:
-**
-**    +2  x0,y0 is on the line segement
-**
-**    +1  x0,y0 is beneath line segment
-**
-**    0   x0,y0 is not on or beneath the line segment or the line segment
-**        is vertical and x0,y0 is not on the line segment
-**
-** The left-most coordinate min(x1,x2) is not considered to be part of
-** the line segment for the purposes of this analysis.
-*/
-static int pointBeneathLine(
-  double x0, double y0,
-  double x1, double y1,
-  double x2, double y2
-){
-  double y;
-  if( x0==x1 && y0==y1 ) return 2;
-  if( x1<x2 ){
-    if( x0<=x1 || x0>x2 ) return 0;
-  }else if( x1>x2 ){
-    if( x0<=x2 || x0>x1 ) return 0;
-  }else{
-    /* Vertical line segment */
-    if( x0!=x1 ) return 0;
-    if( y0<y1 && y0<y2 ) return 0;
-    if( y0>y1 && y0>y2 ) return 0;
-    return 2;
-  }
-  y = y1 + (y2-y1)*(x0-x1)/(x2-x1);
-  if( y0==y ) return 2;
-  if( y0<y ) return 1;
-  return 0;
-}
-
-/*
-** SQL function:    geopoly_contains_point(P,X,Y)
-**
-** Return +2 if point X,Y is within polygon P.
-** Return +1 if point X,Y is on the polygon boundary.
-** Return 0 if point X,Y is outside the polygon
-*/
-static void geopolyContainsPointFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p1 = geopolyFuncParam(context, argv[0], 0);
-  double x0 = tdsqlite3_value_double(argv[1]);
-  double y0 = tdsqlite3_value_double(argv[2]);
-  int v = 0;
-  int cnt = 0;
-  int ii;
-  if( p1==0 ) return;
-  for(ii=0; ii<p1->nVertex-1; ii++){
-    v = pointBeneathLine(x0,y0,GeoX(p1,ii), GeoY(p1,ii),
-                               GeoX(p1,ii+1),GeoY(p1,ii+1));
-    if( v==2 ) break;
-    cnt += v;
-  }
-  if( v!=2 ){
-    v = pointBeneathLine(x0,y0,GeoX(p1,ii), GeoY(p1,ii),
-                               GeoX(p1,0),  GeoY(p1,0));
-  }
-  if( v==2 ){
-    tdsqlite3_result_int(context, 1);
-  }else if( ((v+cnt)&1)==0 ){
-    tdsqlite3_result_int(context, 0);
-  }else{
-    tdsqlite3_result_int(context, 2);
-  }
-  tdsqlite3_free(p1);
-}
-
-/* Forward declaration */
-static int geopolyOverlap(GeoPoly *p1, GeoPoly *p2);
-
-/*
-** SQL function:    geopoly_within(P1,P2)
-**
-** Return +2 if P1 and P2 are the same polygon
-** Return +1 if P2 is contained within P1
-** Return 0 if any part of P2 is on the outside of P1
-**
-*/
-static void geopolyWithinFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p1 = geopolyFuncParam(context, argv[0], 0);
-  GeoPoly *p2 = geopolyFuncParam(context, argv[1], 0);
-  if( p1 && p2 ){
-    int x = geopolyOverlap(p1, p2);
-    if( x<0 ){
-      tdsqlite3_result_error_nomem(context);
-    }else{
-      tdsqlite3_result_int(context, x==2 ? 1 : x==4 ? 2 : 0);
-    }
-  }
-  tdsqlite3_free(p1);
-  tdsqlite3_free(p2);
-}
-
-/* Objects used by the overlap algorihm. */
-typedef struct GeoEvent GeoEvent;
-typedef struct GeoSegment GeoSegment;
-typedef struct GeoOverlap GeoOverlap;
-struct GeoEvent {
-  double x;              /* X coordinate at which event occurs */
-  int eType;             /* 0 for ADD, 1 for REMOVE */
-  GeoSegment *pSeg;      /* The segment to be added or removed */
-  GeoEvent *pNext;       /* Next event in the sorted list */
-};
-struct GeoSegment {
-  double C, B;           /* y = C*x + B */
-  double y;              /* Current y value */
-  float y0;              /* Initial y value */
-  unsigned char side;    /* 1 for p1, 2 for p2 */
-  unsigned int idx;      /* Which segment within the side */
-  GeoSegment *pNext;     /* Next segment in a list sorted by y */
-};
-struct GeoOverlap {
-  GeoEvent *aEvent;          /* Array of all events */
-  GeoSegment *aSegment;      /* Array of all segments */
-  int nEvent;                /* Number of events */
-  int nSegment;              /* Number of segments */
-};
-
-/*
-** Add a single segment and its associated events.
-*/
-static void geopolyAddOneSegment(
-  GeoOverlap *p,
-  GeoCoord x0,
-  GeoCoord y0,
-  GeoCoord x1,
-  GeoCoord y1,
-  unsigned char side,
-  unsigned int idx
-){
-  GeoSegment *pSeg;
-  GeoEvent *pEvent;
-  if( x0==x1 ) return;  /* Ignore vertical segments */
-  if( x0>x1 ){
-    GeoCoord t = x0;
-    x0 = x1;
-    x1 = t;
-    t = y0;
-    y0 = y1;
-    y1 = t;
-  }
-  pSeg = p->aSegment + p->nSegment;
-  p->nSegment++;
-  pSeg->C = (y1-y0)/(x1-x0);
-  pSeg->B = y1 - x1*pSeg->C;
-  pSeg->y0 = y0;
-  pSeg->side = side;
-  pSeg->idx = idx;
-  pEvent = p->aEvent + p->nEvent;
-  p->nEvent++;
-  pEvent->x = x0;
-  pEvent->eType = 0;
-  pEvent->pSeg = pSeg;
-  pEvent = p->aEvent + p->nEvent;
-  p->nEvent++;
-  pEvent->x = x1;
-  pEvent->eType = 1;
-  pEvent->pSeg = pSeg;
-}
-  
-
-
-/*
-** Insert all segments and events for polygon pPoly.
-*/
-static void geopolyAddSegments(
-  GeoOverlap *p,          /* Add segments to this Overlap object */
-  GeoPoly *pPoly,         /* Take all segments from this polygon */
-  unsigned char side      /* The side of pPoly */
-){
-  unsigned int i;
-  GeoCoord *x;
-  for(i=0; i<(unsigned)pPoly->nVertex-1; i++){
-    x = &GeoX(pPoly,i);
-    geopolyAddOneSegment(p, x[0], x[1], x[2], x[3], side, i);
-  }
-  x = &GeoX(pPoly,i);
-  geopolyAddOneSegment(p, x[0], x[1], pPoly->a[0], pPoly->a[1], side, i);
-}
-
-/*
-** Merge two lists of sorted events by X coordinate
-*/
-static GeoEvent *geopolyEventMerge(GeoEvent *pLeft, GeoEvent *pRight){
-  GeoEvent head, *pLast;
-  head.pNext = 0;
-  pLast = &head;
-  while( pRight && pLeft ){
-    if( pRight->x <= pLeft->x ){
-      pLast->pNext = pRight;
-      pLast = pRight;
-      pRight = pRight->pNext;
-    }else{
-      pLast->pNext = pLeft;
-      pLast = pLeft;
-      pLeft = pLeft->pNext;
-    }
-  }
-  pLast->pNext = pRight ? pRight : pLeft;
-  return head.pNext;  
-}
-
-/*
-** Sort an array of nEvent event objects into a list.
-*/
-static GeoEvent *geopolySortEventsByX(GeoEvent *aEvent, int nEvent){
-  int mx = 0;
-  int i, j;
-  GeoEvent *p;
-  GeoEvent *a[50];
-  for(i=0; i<nEvent; i++){
-    p = &aEvent[i];
-    p->pNext = 0;
-    for(j=0; j<mx && a[j]; j++){
-      p = geopolyEventMerge(a[j], p);
-      a[j] = 0;
-    }
-    a[j] = p;
-    if( j>=mx ) mx = j+1;
-  }
-  p = 0;
-  for(i=0; i<mx; i++){
-    p = geopolyEventMerge(a[i], p);
-  }
-  return p;
-}
-
-/*
-** Merge two lists of sorted segments by Y, and then by C.
-*/
-static GeoSegment *geopolySegmentMerge(GeoSegment *pLeft, GeoSegment *pRight){
-  GeoSegment head, *pLast;
-  head.pNext = 0;
-  pLast = &head;
-  while( pRight && pLeft ){
-    double r = pRight->y - pLeft->y;
-    if( r==0.0 ) r = pRight->C - pLeft->C;
-    if( r<0.0 ){
-      pLast->pNext = pRight;
-      pLast = pRight;
-      pRight = pRight->pNext;
-    }else{
-      pLast->pNext = pLeft;
-      pLast = pLeft;
-      pLeft = pLeft->pNext;
-    }
-  }
-  pLast->pNext = pRight ? pRight : pLeft;
-  return head.pNext;  
-}
-
-/*
-** Sort a list of GeoSegments in order of increasing Y and in the event of
-** a tie, increasing C (slope).
-*/
-static GeoSegment *geopolySortSegmentsByYAndC(GeoSegment *pList){
-  int mx = 0;
-  int i;
-  GeoSegment *p;
-  GeoSegment *a[50];
-  while( pList ){
-    p = pList;
-    pList = pList->pNext;
-    p->pNext = 0;
-    for(i=0; i<mx && a[i]; i++){
-      p = geopolySegmentMerge(a[i], p);
-      a[i] = 0;
-    }
-    a[i] = p;
-    if( i>=mx ) mx = i+1;
-  }
-  p = 0;
-  for(i=0; i<mx; i++){
-    p = geopolySegmentMerge(a[i], p);
-  }
-  return p;
-}
-
-/*
-** Determine the overlap between two polygons
-*/
-static int geopolyOverlap(GeoPoly *p1, GeoPoly *p2){
-  tdsqlite3_int64 nVertex = p1->nVertex + p2->nVertex + 2;
-  GeoOverlap *p;
-  tdsqlite3_int64 nByte;
-  GeoEvent *pThisEvent;
-  double rX;
-  int rc = 0;
-  int needSort = 0;
-  GeoSegment *pActive = 0;
-  GeoSegment *pSeg;
-  unsigned char aOverlap[4];
-
-  nByte = sizeof(GeoEvent)*nVertex*2 
-           + sizeof(GeoSegment)*nVertex 
-           + sizeof(GeoOverlap);
-  p = tdsqlite3_malloc64( nByte );
-  if( p==0 ) return -1;
-  p->aEvent = (GeoEvent*)&p[1];
-  p->aSegment = (GeoSegment*)&p->aEvent[nVertex*2];
-  p->nEvent = p->nSegment = 0;
-  geopolyAddSegments(p, p1, 1);
-  geopolyAddSegments(p, p2, 2);
-  pThisEvent = geopolySortEventsByX(p->aEvent, p->nEvent);
-  rX = pThisEvent->x==0.0 ? -1.0 : 0.0;
-  memset(aOverlap, 0, sizeof(aOverlap));
-  while( pThisEvent ){
-    if( pThisEvent->x!=rX ){
-      GeoSegment *pPrev = 0;
-      int iMask = 0;
-      GEODEBUG(("Distinct X: %g\n", pThisEvent->x));
-      rX = pThisEvent->x;
-      if( needSort ){
-        GEODEBUG(("SORT\n"));
-        pActive = geopolySortSegmentsByYAndC(pActive);
-        needSort = 0;
-      }
-      for(pSeg=pActive; pSeg; pSeg=pSeg->pNext){
-        if( pPrev ){
-          if( pPrev->y!=pSeg->y ){
-            GEODEBUG(("MASK: %d\n", iMask));
-            aOverlap[iMask] = 1;
-          }
-        }
-        iMask ^= pSeg->side;
-        pPrev = pSeg;
-      }
-      pPrev = 0;
-      for(pSeg=pActive; pSeg; pSeg=pSeg->pNext){
-        double y = pSeg->C*rX + pSeg->B;
-        GEODEBUG(("Segment %d.%d %g->%g\n", pSeg->side, pSeg->idx, pSeg->y, y));
-        pSeg->y = y;
-        if( pPrev ){
-          if( pPrev->y>pSeg->y && pPrev->side!=pSeg->side ){
-            rc = 1;
-            GEODEBUG(("Crossing: %d.%d and %d.%d\n",
-                    pPrev->side, pPrev->idx,
-                    pSeg->side, pSeg->idx));
-            goto geopolyOverlapDone;
-          }else if( pPrev->y!=pSeg->y ){
-            GEODEBUG(("MASK: %d\n", iMask));
-            aOverlap[iMask] = 1;
-          }
-        }
-        iMask ^= pSeg->side;
-        pPrev = pSeg;
-      }
-    }
-    GEODEBUG(("%s %d.%d C=%g B=%g\n",
-      pThisEvent->eType ? "RM " : "ADD",
-      pThisEvent->pSeg->side, pThisEvent->pSeg->idx,
-      pThisEvent->pSeg->C,
-      pThisEvent->pSeg->B));
-    if( pThisEvent->eType==0 ){
-      /* Add a segment */
-      pSeg = pThisEvent->pSeg;
-      pSeg->y = pSeg->y0;
-      pSeg->pNext = pActive;
-      pActive = pSeg;
-      needSort = 1;
-    }else{
-      /* Remove a segment */
-      if( pActive==pThisEvent->pSeg ){
-        pActive = pActive->pNext;
-      }else{
-        for(pSeg=pActive; pSeg; pSeg=pSeg->pNext){
-          if( pSeg->pNext==pThisEvent->pSeg ){
-            pSeg->pNext = pSeg->pNext->pNext;
-            break;
-          }
-        }
-      }
-    }
-    pThisEvent = pThisEvent->pNext;
-  }
-  if( aOverlap[3]==0 ){
-    rc = 0;
-  }else if( aOverlap[1]!=0 && aOverlap[2]==0 ){
-    rc = 3;
-  }else if( aOverlap[1]==0 && aOverlap[2]!=0 ){
-    rc = 2;
-  }else if( aOverlap[1]==0 && aOverlap[2]==0 ){
-    rc = 4;
-  }else{
-    rc = 1;
-  }
-
-geopolyOverlapDone:
-  tdsqlite3_free(p);
-  return rc;
-}
-
-/*
-** SQL function:    geopoly_overlap(P1,P2)
-**
-** Determine whether or not P1 and P2 overlap. Return value:
-**
-**   0     The two polygons are disjoint
-**   1     They overlap
-**   2     P1 is completely contained within P2
-**   3     P2 is completely contained within P1
-**   4     P1 and P2 are the same polygon
-**   NULL  Either P1 or P2 or both are not valid polygons
-*/
-static void geopolyOverlapFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  GeoPoly *p1 = geopolyFuncParam(context, argv[0], 0);
-  GeoPoly *p2 = geopolyFuncParam(context, argv[1], 0);
-  if( p1 && p2 ){
-    int x = geopolyOverlap(p1, p2);
-    if( x<0 ){
-      tdsqlite3_result_error_nomem(context);
-    }else{
-      tdsqlite3_result_int(context, x);
-    }
-  }
-  tdsqlite3_free(p1);
-  tdsqlite3_free(p2);
-}
-
-/*
-** Enable or disable debugging output
-*/
-static void geopolyDebugFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-#ifdef GEOPOLY_ENABLE_DEBUG
-  geo_debug = tdsqlite3_value_int(argv[0]);
-#endif
-}
-
-/* 
-** This function is the implementation of both the xConnect and xCreate
-** methods of the geopoly virtual table.
-**
-**   argv[0]   -> module name
-**   argv[1]   -> database name
-**   argv[2]   -> table name
-**   argv[...] -> column names...
-*/
-static int geopolyInit(
-  tdsqlite3 *db,                        /* Database connection */
-  void *pAux,                         /* One of the RTREE_COORD_* constants */
-  int argc, const char *const*argv,   /* Parameters to CREATE TABLE statement */
-  tdsqlite3_vtab **ppVtab,              /* OUT: New virtual table */
-  char **pzErr,                       /* OUT: Error message, if any */
-  int isCreate                        /* True for xCreate, false for xConnect */
-){
-  int rc = SQLITE_OK;
-  Rtree *pRtree;
-  tdsqlite3_int64 nDb;              /* Length of string argv[1] */
-  tdsqlite3_int64 nName;            /* Length of string argv[2] */
-  tdsqlite3_str *pSql;
-  char *zSql;
-  int ii;
-
-  tdsqlite3_vtab_config(db, SQLITE_VTAB_CONSTRAINT_SUPPORT, 1);
-
-  /* Allocate the tdsqlite3_vtab structure */
-  nDb = strlen(argv[1]);
-  nName = strlen(argv[2]);
-  pRtree = (Rtree *)tdsqlite3_malloc64(sizeof(Rtree)+nDb+nName+2);
-  if( !pRtree ){
-    return SQLITE_NOMEM;
-  }
-  memset(pRtree, 0, sizeof(Rtree)+nDb+nName+2);
-  pRtree->nBusy = 1;
-  pRtree->base.pModule = &rtreeModule;
-  pRtree->zDb = (char *)&pRtree[1];
-  pRtree->zName = &pRtree->zDb[nDb+1];
-  pRtree->eCoordType = RTREE_COORD_REAL32;
-  pRtree->nDim = 2;
-  pRtree->nDim2 = 4;
-  memcpy(pRtree->zDb, argv[1], nDb);
-  memcpy(pRtree->zName, argv[2], nName);
-
-
-  /* Create/Connect to the underlying relational database schema. If
-  ** that is successful, call tdsqlite3_declare_vtab() to configure
-  ** the r-tree table schema.
-  */
-  pSql = tdsqlite3_str_new(db);
-  tdsqlite3_str_appendf(pSql, "CREATE TABLE x(_shape");
-  pRtree->nAux = 1;         /* Add one for _shape */
-  pRtree->nAuxNotNull = 1;  /* The _shape column is always not-null */
-  for(ii=3; ii<argc; ii++){
-    pRtree->nAux++;
-    tdsqlite3_str_appendf(pSql, ",%s", argv[ii]);
-  }
-  tdsqlite3_str_appendf(pSql, ");");
-  zSql = tdsqlite3_str_finish(pSql);
-  if( !zSql ){
-    rc = SQLITE_NOMEM;
-  }else if( SQLITE_OK!=(rc = tdsqlite3_declare_vtab(db, zSql)) ){
-    *pzErr = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-  }
-  tdsqlite3_free(zSql);
-  if( rc ) goto geopolyInit_fail;
-  pRtree->nBytesPerCell = 8 + pRtree->nDim2*4;
-
-  /* Figure out the node size to use. */
-  rc = getNodeSize(db, pRtree, isCreate, pzErr);
-  if( rc ) goto geopolyInit_fail;
-  rc = rtreeSqlInit(pRtree, db, argv[1], argv[2], isCreate);
-  if( rc ){
-    *pzErr = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-    goto geopolyInit_fail;
-  }
-
-  *ppVtab = (tdsqlite3_vtab *)pRtree;
-  return SQLITE_OK;
-
-geopolyInit_fail:
-  if( rc==SQLITE_OK ) rc = SQLITE_ERROR;
-  assert( *ppVtab==0 );
-  assert( pRtree->nBusy==1 );
-  rtreeRelease(pRtree);
-  return rc;
-}
-
-
-/* 
-** GEOPOLY virtual table module xCreate method.
-*/
-static int geopolyCreate(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  return geopolyInit(db, pAux, argc, argv, ppVtab, pzErr, 1);
-}
-
-/* 
-** GEOPOLY virtual table module xConnect method.
-*/
-static int geopolyConnect(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  return geopolyInit(db, pAux, argc, argv, ppVtab, pzErr, 0);
-}
-
-
-/* 
-** GEOPOLY virtual table module xFilter method.
-**
-** Query plans:
-**
-**      1         rowid lookup
-**      2         search for objects overlapping the same bounding box
-**                that contains polygon argv[0]
-**      3         search for objects overlapping the same bounding box
-**                that contains polygon argv[0]
-**      4         full table scan
-*/
-static int geopolyFilter(
-  tdsqlite3_vtab_cursor *pVtabCursor,     /* The cursor to initialize */
-  int idxNum,                           /* Query plan */
-  const char *idxStr,                   /* Not Used */
-  int argc, tdsqlite3_value **argv        /* Parameters to the query plan */
-){
-  Rtree *pRtree = (Rtree *)pVtabCursor->pVtab;
-  RtreeCursor *pCsr = (RtreeCursor *)pVtabCursor;
-  RtreeNode *pRoot = 0;
-  int rc = SQLITE_OK;
-  int iCell = 0;
-
-  rtreeReference(pRtree);
-
-  /* Reset the cursor to the same state as rtreeOpen() leaves it in. */
-  resetCursor(pCsr);
-
-  pCsr->iStrategy = idxNum;
-  if( idxNum==1 ){
-    /* Special case - lookup by rowid. */
-    RtreeNode *pLeaf;        /* Leaf on which the required cell resides */
-    RtreeSearchPoint *p;     /* Search point for the leaf */
-    i64 iRowid = tdsqlite3_value_int64(argv[0]);
-    i64 iNode = 0;
-    rc = findLeafNode(pRtree, iRowid, &pLeaf, &iNode);
-    if( rc==SQLITE_OK && pLeaf!=0 ){
-      p = rtreeSearchPointNew(pCsr, RTREE_ZERO, 0);
-      assert( p!=0 );  /* Always returns pCsr->sPoint */
-      pCsr->aNode[0] = pLeaf;
-      p->id = iNode;
-      p->eWithin = PARTLY_WITHIN;
-      rc = nodeRowidIndex(pRtree, pLeaf, iRowid, &iCell);
-      p->iCell = (u8)iCell;
-      RTREE_QUEUE_TRACE(pCsr, "PUSH-F1:");
-    }else{
-      pCsr->atEOF = 1;
-    }
-  }else{
-    /* Normal case - r-tree scan. Set up the RtreeCursor.aConstraint array 
-    ** with the configured constraints. 
-    */
-    rc = nodeAcquire(pRtree, 1, 0, &pRoot);
-    if( rc==SQLITE_OK && idxNum<=3 ){
-      RtreeCoord bbox[4];
-      RtreeConstraint *p;
-      assert( argc==1 );
-      geopolyBBox(0, argv[0], bbox, &rc);
-      if( rc ){
-        goto geopoly_filter_end;
-      }
-      pCsr->aConstraint = p = tdsqlite3_malloc(sizeof(RtreeConstraint)*4);
-      pCsr->nConstraint = 4;
-      if( p==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        memset(pCsr->aConstraint, 0, sizeof(RtreeConstraint)*4);
-        memset(pCsr->anQueue, 0, sizeof(u32)*(pRtree->iDepth + 1));
-        if( idxNum==2 ){
-          /* Overlap query */
-          p->op = 'B';
-          p->iCoord = 0;
-          p->u.rValue = bbox[1].f;
-          p++;
-          p->op = 'D';
-          p->iCoord = 1;
-          p->u.rValue = bbox[0].f;
-          p++;
-          p->op = 'B';
-          p->iCoord = 2;
-          p->u.rValue = bbox[3].f;
-          p++;
-          p->op = 'D';
-          p->iCoord = 3;
-          p->u.rValue = bbox[2].f;
-        }else{
-          /* Within query */
-          p->op = 'D';
-          p->iCoord = 0;
-          p->u.rValue = bbox[0].f;
-          p++;
-          p->op = 'B';
-          p->iCoord = 1;
-          p->u.rValue = bbox[1].f;
-          p++;
-          p->op = 'D';
-          p->iCoord = 2;
-          p->u.rValue = bbox[2].f;
-          p++;
-          p->op = 'B';
-          p->iCoord = 3;
-          p->u.rValue = bbox[3].f;
-        }
-      }
-    }
-    if( rc==SQLITE_OK ){
-      RtreeSearchPoint *pNew;
-      pNew = rtreeSearchPointNew(pCsr, RTREE_ZERO, (u8)(pRtree->iDepth+1));
-      if( pNew==0 ){
-        rc = SQLITE_NOMEM;
-        goto geopoly_filter_end;
-      }
-      pNew->id = 1;
-      pNew->iCell = 0;
-      pNew->eWithin = PARTLY_WITHIN;
-      assert( pCsr->bPoint==1 );
-      pCsr->aNode[0] = pRoot;
-      pRoot = 0;
-      RTREE_QUEUE_TRACE(pCsr, "PUSH-Fm:");
-      rc = rtreeStepToLeaf(pCsr);
-    }
-  }
-
-geopoly_filter_end:
-  nodeRelease(pRtree, pRoot);
-  rtreeRelease(pRtree);
-  return rc;
-}
-
-/*
-** Rtree virtual table module xBestIndex method. There are three
-** table scan strategies to choose from (in order from most to 
-** least desirable):
-**
-**   idxNum     idxStr        Strategy
-**   ------------------------------------------------
-**     1        "rowid"       Direct lookup by rowid.
-**     2        "rtree"       R-tree overlap query using geopoly_overlap()
-**     3        "rtree"       R-tree within query using geopoly_within()
-**     4        "fullscan"    full-table scan.
-**   ------------------------------------------------
-*/
-static int geopolyBestIndex(tdsqlite3_vtab *tab, tdsqlite3_index_info *pIdxInfo){
-  int ii;
-  int iRowidTerm = -1;
-  int iFuncTerm = -1;
-  int idxNum = 0;
-
-  for(ii=0; ii<pIdxInfo->nConstraint; ii++){
-    struct tdsqlite3_index_constraint *p = &pIdxInfo->aConstraint[ii];
-    if( !p->usable ) continue;
-    if( p->iColumn<0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ  ){
-      iRowidTerm = ii;
-      break;
-    }
-    if( p->iColumn==0 && p->op>=SQLITE_INDEX_CONSTRAINT_FUNCTION ){
-      /* p->op==SQLITE_INDEX_CONSTRAINT_FUNCTION for geopoly_overlap()
-      ** p->op==(SQLITE_INDEX_CONTRAINT_FUNCTION+1) for geopoly_within().
-      ** See geopolyFindFunction() */
-      iFuncTerm = ii;
-      idxNum = p->op - SQLITE_INDEX_CONSTRAINT_FUNCTION + 2;
-    }
-  }
-
-  if( iRowidTerm>=0 ){
-    pIdxInfo->idxNum = 1;
-    pIdxInfo->idxStr = "rowid";
-    pIdxInfo->aConstraintUsage[iRowidTerm].argvIndex = 1;
-    pIdxInfo->aConstraintUsage[iRowidTerm].omit = 1;
-    pIdxInfo->estimatedCost = 30.0;
-    pIdxInfo->estimatedRows = 1;
-    pIdxInfo->idxFlags = SQLITE_INDEX_SCAN_UNIQUE;
-    return SQLITE_OK;
-  }
-  if( iFuncTerm>=0 ){
-    pIdxInfo->idxNum = idxNum;
-    pIdxInfo->idxStr = "rtree";
-    pIdxInfo->aConstraintUsage[iFuncTerm].argvIndex = 1;
-    pIdxInfo->aConstraintUsage[iFuncTerm].omit = 0;
-    pIdxInfo->estimatedCost = 300.0;
-    pIdxInfo->estimatedRows = 10;
-    return SQLITE_OK;
-  }
-  pIdxInfo->idxNum = 4;
-  pIdxInfo->idxStr = "fullscan";
-  pIdxInfo->estimatedCost = 3000000.0;
-  pIdxInfo->estimatedRows = 100000;
-  return SQLITE_OK;
-}
-
-
-/* 
-** GEOPOLY virtual table module xColumn method.
-*/
-static int geopolyColumn(tdsqlite3_vtab_cursor *cur, tdsqlite3_context *ctx, int i){
-  Rtree *pRtree = (Rtree *)cur->pVtab;
-  RtreeCursor *pCsr = (RtreeCursor *)cur;
-  RtreeSearchPoint *p = rtreeSearchPointFirst(pCsr);
-  int rc = SQLITE_OK;
-  RtreeNode *pNode = rtreeNodeOfFirstSearchPoint(pCsr, &rc);
-
-  if( rc ) return rc;
-  if( p==0 ) return SQLITE_OK;
-  if( i==0 && tdsqlite3_vtab_nochange(ctx) ) return SQLITE_OK;
-  if( i<=pRtree->nAux ){
-    if( !pCsr->bAuxValid ){
-      if( pCsr->pReadAux==0 ){
-        rc = tdsqlite3_prepare_v3(pRtree->db, pRtree->zReadAuxSql, -1, 0,
-                                &pCsr->pReadAux, 0);
-        if( rc ) return rc;
-      }
-      tdsqlite3_bind_int64(pCsr->pReadAux, 1, 
-          nodeGetRowid(pRtree, pNode, p->iCell));
-      rc = tdsqlite3_step(pCsr->pReadAux);
-      if( rc==SQLITE_ROW ){
-        pCsr->bAuxValid = 1;
-      }else{
-        tdsqlite3_reset(pCsr->pReadAux);
-        if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-        return rc;
-      }
-    }
-    tdsqlite3_result_value(ctx, tdsqlite3_column_value(pCsr->pReadAux, i+2));
-  }
-  return SQLITE_OK;
-}
-
-
-/*
-** The xUpdate method for GEOPOLY module virtual tables.
-**
-** For DELETE:
-**
-**     argv[0] = the rowid to be deleted
-**
-** For INSERT:
-**
-**     argv[0] = SQL NULL
-**     argv[1] = rowid to insert, or an SQL NULL to select automatically
-**     argv[2] = _shape column
-**     argv[3] = first application-defined column....
-**
-** For UPDATE:
-**
-**     argv[0] = rowid to modify.  Never NULL
-**     argv[1] = rowid after the change.  Never NULL
-**     argv[2] = new value for _shape
-**     argv[3] = new value for first application-defined column....
-*/
-static int geopolyUpdate(
-  tdsqlite3_vtab *pVtab, 
-  int nData, 
-  tdsqlite3_value **aData, 
-  sqlite_int64 *pRowid
-){
-  Rtree *pRtree = (Rtree *)pVtab;
-  int rc = SQLITE_OK;
-  RtreeCell cell;                 /* New cell to insert if nData>1 */
-  i64 oldRowid;                   /* The old rowid */
-  int oldRowidValid;              /* True if oldRowid is valid */
-  i64 newRowid;                   /* The new rowid */
-  int newRowidValid;              /* True if newRowid is valid */
-  int coordChange = 0;            /* Change in coordinates */
-
-  if( pRtree->nNodeRef ){
-    /* Unable to write to the btree while another cursor is reading from it,
-    ** since the write might do a rebalance which would disrupt the read
-    ** cursor. */
-    return SQLITE_LOCKED_VTAB;
-  }
-  rtreeReference(pRtree);
-  assert(nData>=1);
-
-  oldRowidValid = tdsqlite3_value_type(aData[0])!=SQLITE_NULL;;
-  oldRowid = oldRowidValid ? tdsqlite3_value_int64(aData[0]) : 0;
-  newRowidValid = nData>1 && tdsqlite3_value_type(aData[1])!=SQLITE_NULL;
-  newRowid = newRowidValid ? tdsqlite3_value_int64(aData[1]) : 0;
-  cell.iRowid = newRowid;
-
-  if( nData>1                                 /* not a DELETE */
-   && (!oldRowidValid                         /* INSERT */
-        || !tdsqlite3_value_nochange(aData[2])  /* UPDATE _shape */
-        || oldRowid!=newRowid)                /* Rowid change */
-  ){
-    geopolyBBox(0, aData[2], cell.aCoord, &rc);
-    if( rc ){
-      if( rc==SQLITE_ERROR ){
-        pVtab->zErrMsg =
-          tdsqlite3_mprintf("_shape does not contain a valid polygon");
-      }
-      goto geopoly_update_end;
-    }
-    coordChange = 1;
-
-    /* If a rowid value was supplied, check if it is already present in 
-    ** the table. If so, the constraint has failed. */
-    if( newRowidValid && (!oldRowidValid || oldRowid!=newRowid) ){
-      int steprc;
-      tdsqlite3_bind_int64(pRtree->pReadRowid, 1, cell.iRowid);
-      steprc = tdsqlite3_step(pRtree->pReadRowid);
-      rc = tdsqlite3_reset(pRtree->pReadRowid);
-      if( SQLITE_ROW==steprc ){
-        if( tdsqlite3_vtab_on_conflict(pRtree->db)==SQLITE_REPLACE ){
-          rc = rtreeDeleteRowid(pRtree, cell.iRowid);
-        }else{
-          rc = rtreeConstraintError(pRtree, 0);
-        }
-      }
-    }
-  }
-
-  /* If aData[0] is not an SQL NULL value, it is the rowid of a
-  ** record to delete from the r-tree table. The following block does
-  ** just that.
-  */
-  if( rc==SQLITE_OK && (nData==1 || (coordChange && oldRowidValid)) ){
-    rc = rtreeDeleteRowid(pRtree, oldRowid);
-  }
-
-  /* If the aData[] array contains more than one element, elements
-  ** (aData[2]..aData[argc-1]) contain a new record to insert into
-  ** the r-tree structure.
-  */
-  if( rc==SQLITE_OK && nData>1 && coordChange ){
-    /* Insert the new record into the r-tree */
-    RtreeNode *pLeaf = 0;
-    if( !newRowidValid ){
-      rc = rtreeNewRowid(pRtree, &cell.iRowid);
-    }
-    *pRowid = cell.iRowid;
-    if( rc==SQLITE_OK ){
-      rc = ChooseLeaf(pRtree, &cell, 0, &pLeaf);
-    }
-    if( rc==SQLITE_OK ){
-      int rc2;
-      pRtree->iReinsertHeight = -1;
-      rc = rtreeInsertCell(pRtree, pLeaf, &cell, 0);
-      rc2 = nodeRelease(pRtree, pLeaf);
-      if( rc==SQLITE_OK ){
-        rc = rc2;
-      }
-    }
-  }
-
-  /* Change the data */
-  if( rc==SQLITE_OK && nData>1 ){
-    tdsqlite3_stmt *pUp = pRtree->pWriteAux;
-    int jj;
-    int nChange = 0;
-    tdsqlite3_bind_int64(pUp, 1, cell.iRowid);
-    assert( pRtree->nAux>=1 );
-    if( tdsqlite3_value_nochange(aData[2]) ){
-      tdsqlite3_bind_null(pUp, 2);
-    }else{
-      GeoPoly *p = 0;
-      if( tdsqlite3_value_type(aData[2])==SQLITE_TEXT
-       && (p = geopolyFuncParam(0, aData[2], &rc))!=0
-       && rc==SQLITE_OK
-      ){
-        tdsqlite3_bind_blob(pUp, 2, p->hdr, 4+8*p->nVertex, SQLITE_TRANSIENT);
-      }else{
-        tdsqlite3_bind_value(pUp, 2, aData[2]);
-      }
-      tdsqlite3_free(p);
-      nChange = 1;
-    }
-    for(jj=1; jj<pRtree->nAux; jj++){
-      nChange++;
-      tdsqlite3_bind_value(pUp, jj+2, aData[jj+2]);
-    }
-    if( nChange ){
-      tdsqlite3_step(pUp);
-      rc = tdsqlite3_reset(pUp);
-    }
-  }
-
-geopoly_update_end:
-  rtreeRelease(pRtree);
-  return rc;
-}
-
-/*
-** Report that geopoly_overlap() is an overloaded function suitable
-** for use in xBestIndex.
-*/
-static int geopolyFindFunction(
-  tdsqlite3_vtab *pVtab,
-  int nArg,
-  const char *zName,
-  void (**pxFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void **ppArg
-){
-  if( tdsqlite3_stricmp(zName, "geopoly_overlap")==0 ){
-    *pxFunc = geopolyOverlapFunc;
-    *ppArg = 0;
-    return SQLITE_INDEX_CONSTRAINT_FUNCTION;
-  }
-  if( tdsqlite3_stricmp(zName, "geopoly_within")==0 ){
-    *pxFunc = geopolyWithinFunc;
-    *ppArg = 0;
-    return SQLITE_INDEX_CONSTRAINT_FUNCTION+1;
-  }
-  return 0;
-}
-
-
-static tdsqlite3_module geopolyModule = {
-  3,                          /* iVersion */
-  geopolyCreate,              /* xCreate - create a table */
-  geopolyConnect,             /* xConnect - connect to an existing table */
-  geopolyBestIndex,           /* xBestIndex - Determine search strategy */
-  rtreeDisconnect,            /* xDisconnect - Disconnect from a table */
-  rtreeDestroy,               /* xDestroy - Drop a table */
-  rtreeOpen,                  /* xOpen - open a cursor */
-  rtreeClose,                 /* xClose - close a cursor */
-  geopolyFilter,              /* xFilter - configure scan constraints */
-  rtreeNext,                  /* xNext - advance a cursor */
-  rtreeEof,                   /* xEof */
-  geopolyColumn,              /* xColumn - read data */
-  rtreeRowid,                 /* xRowid - read data */
-  geopolyUpdate,              /* xUpdate - write data */
-  rtreeBeginTransaction,      /* xBegin - begin transaction */
-  rtreeEndTransaction,        /* xSync - sync transaction */
-  rtreeEndTransaction,        /* xCommit - commit transaction */
-  rtreeEndTransaction,        /* xRollback - rollback transaction */
-  geopolyFindFunction,        /* xFindFunction - function overloading */
-  rtreeRename,                /* xRename - rename the table */
-  rtreeSavepoint,             /* xSavepoint */
-  0,                          /* xRelease */
-  0,                          /* xRollbackTo */
-  rtreeShadowName             /* xShadowName */
-};
-
-static int tdsqlite3_geopoly_init(tdsqlite3 *db){
-  int rc = SQLITE_OK;
-  static const struct {
-    void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**);
-    signed char nArg;
-    unsigned char bPure;
-    const char *zName;
-  } aFunc[] = {
-     { geopolyAreaFunc,          1, 1,    "geopoly_area"             },
-     { geopolyBlobFunc,          1, 1,    "geopoly_blob"             },
-     { geopolyJsonFunc,          1, 1,    "geopoly_json"             },
-     { geopolySvgFunc,          -1, 1,    "geopoly_svg"              },
-     { geopolyWithinFunc,        2, 1,    "geopoly_within"           },
-     { geopolyContainsPointFunc, 3, 1,    "geopoly_contains_point"   },
-     { geopolyOverlapFunc,       2, 1,    "geopoly_overlap"          },
-     { geopolyDebugFunc,         1, 0,    "geopoly_debug"            },
-     { geopolyBBoxFunc,          1, 1,    "geopoly_bbox"             },
-     { geopolyXformFunc,         7, 1,    "geopoly_xform"            },
-     { geopolyRegularFunc,       4, 1,    "geopoly_regular"          },
-     { geopolyCcwFunc,           1, 1,    "geopoly_ccw"              },
-  };
-  static const struct {
-    void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**);
-    void (*xFinal)(tdsqlite3_context*);
-    const char *zName;
-  } aAgg[] = {
-     { geopolyBBoxStep, geopolyBBoxFinal, "geopoly_group_bbox"    },
-  };
-  int i;
-  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){
-    int enc;
-    if( aFunc[i].bPure ){
-      enc = SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS;
-    }else{
-      enc = SQLITE_UTF8|SQLITE_DIRECTONLY;
-    }
-    rc = tdsqlite3_create_function(db, aFunc[i].zName, aFunc[i].nArg,
-                                 enc, 0,
-                                 aFunc[i].xFunc, 0, 0);
-  }
-  for(i=0; i<sizeof(aAgg)/sizeof(aAgg[0]) && rc==SQLITE_OK; i++){
-    rc = tdsqlite3_create_function(db, aAgg[i].zName, 1, 
-              SQLITE_UTF8|SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS, 0,
-              0, aAgg[i].xStep, aAgg[i].xFinal);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_create_module_v2(db, "geopoly", &geopolyModule, 0, 0);
-  }
-  return rc;
-}
-
-/************** End of geopoly.c *********************************************/
-/************** Continuing where we left off in rtree.c **********************/
-#endif
-
-/*
-** Register the r-tree module with database handle db. This creates the
-** virtual table module "rtree" and the debugging/analysis scalar 
-** function "rtreenode".
-*/
-SQLITE_PRIVATE int tdsqlite3RtreeInit(tdsqlite3 *db){
-  const int utf8 = SQLITE_UTF8;
-  int rc;
-
-  rc = tdsqlite3_create_function(db, "rtreenode", 2, utf8, 0, rtreenode, 0, 0);
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_create_function(db, "rtreedepth", 1, utf8, 0,rtreedepth, 0, 0);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_create_function(db, "rtreecheck", -1, utf8, 0,rtreecheck, 0,0);
-  }
-  if( rc==SQLITE_OK ){
-#ifdef SQLITE_RTREE_INT_ONLY
-    void *c = (void *)RTREE_COORD_INT32;
-#else
-    void *c = (void *)RTREE_COORD_REAL32;
-#endif
-    rc = tdsqlite3_create_module_v2(db, "rtree", &rtreeModule, c, 0);
-  }
-  if( rc==SQLITE_OK ){
-    void *c = (void *)RTREE_COORD_INT32;
-    rc = tdsqlite3_create_module_v2(db, "rtree_i32", &rtreeModule, c, 0);
-  }
-#ifdef SQLITE_ENABLE_GEOPOLY
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_geopoly_init(db);
-  }
-#endif
-
-  return rc;
-}
-
-/*
-** This routine deletes the RtreeGeomCallback object that was attached
-** one of the SQL functions create by tdsqlite3_rtree_geometry_callback()
-** or tdsqlite3_rtree_query_callback().  In other words, this routine is the
-** destructor for an RtreeGeomCallback objecct.  This routine is called when
-** the corresponding SQL function is deleted.
-*/
-static void rtreeFreeCallback(void *p){
-  RtreeGeomCallback *pInfo = (RtreeGeomCallback*)p;
-  if( pInfo->xDestructor ) pInfo->xDestructor(pInfo->pContext);
-  tdsqlite3_free(p);
-}
-
-/*
-** This routine frees the BLOB that is returned by geomCallback().
-*/
-static void rtreeMatchArgFree(void *pArg){
-  int i;
-  RtreeMatchArg *p = (RtreeMatchArg*)pArg;
-  for(i=0; i<p->nParam; i++){
-    tdsqlite3_value_free(p->apSqlParam[i]);
-  }
-  tdsqlite3_free(p);
-}
-
-/*
-** Each call to tdsqlite3_rtree_geometry_callback() or
-** tdsqlite3_rtree_query_callback() creates an ordinary SQLite
-** scalar function that is implemented by this routine.
-**
-** All this function does is construct an RtreeMatchArg object that
-** contains the geometry-checking callback routines and a list of
-** parameters to this function, then return that RtreeMatchArg object
-** as a BLOB.
-**
-** The R-Tree MATCH operator will read the returned BLOB, deserialize
-** the RtreeMatchArg object, and use the RtreeMatchArg object to figure
-** out which elements of the R-Tree should be returned by the query.
-*/
-static void geomCallback(tdsqlite3_context *ctx, int nArg, tdsqlite3_value **aArg){
-  RtreeGeomCallback *pGeomCtx = (RtreeGeomCallback *)tdsqlite3_user_data(ctx);
-  RtreeMatchArg *pBlob;
-  tdsqlite3_int64 nBlob;
-  int memErr = 0;
-
-  nBlob = sizeof(RtreeMatchArg) + (nArg-1)*sizeof(RtreeDValue)
-           + nArg*sizeof(tdsqlite3_value*);
-  pBlob = (RtreeMatchArg *)tdsqlite3_malloc64(nBlob);
-  if( !pBlob ){
-    tdsqlite3_result_error_nomem(ctx);
-  }else{
-    int i;
-    pBlob->iSize = nBlob;
-    pBlob->cb = pGeomCtx[0];
-    pBlob->apSqlParam = (tdsqlite3_value**)&pBlob->aParam[nArg];
-    pBlob->nParam = nArg;
-    for(i=0; i<nArg; i++){
-      pBlob->apSqlParam[i] = tdsqlite3_value_dup(aArg[i]);
-      if( pBlob->apSqlParam[i]==0 ) memErr = 1;
-#ifdef SQLITE_RTREE_INT_ONLY
-      pBlob->aParam[i] = tdsqlite3_value_int64(aArg[i]);
-#else
-      pBlob->aParam[i] = tdsqlite3_value_double(aArg[i]);
-#endif
-    }
-    if( memErr ){
-      tdsqlite3_result_error_nomem(ctx);
-      rtreeMatchArgFree(pBlob);
-    }else{
-      tdsqlite3_result_pointer(ctx, pBlob, "RtreeMatchArg", rtreeMatchArgFree);
-    }
-  }
-}
-
-/*
-** Register a new geometry function for use with the r-tree MATCH operator.
-*/
-SQLITE_API int tdsqlite3_rtree_geometry_callback(
-  tdsqlite3 *db,                  /* Register SQL function on this connection */
-  const char *zGeom,            /* Name of the new SQL function */
-  int (*xGeom)(tdsqlite3_rtree_geometry*,int,RtreeDValue*,int*), /* Callback */
-  void *pContext                /* Extra data associated with the callback */
-){
-  RtreeGeomCallback *pGeomCtx;      /* Context object for new user-function */
-
-  /* Allocate and populate the context object. */
-  pGeomCtx = (RtreeGeomCallback *)tdsqlite3_malloc(sizeof(RtreeGeomCallback));
-  if( !pGeomCtx ) return SQLITE_NOMEM;
-  pGeomCtx->xGeom = xGeom;
-  pGeomCtx->xQueryFunc = 0;
-  pGeomCtx->xDestructor = 0;
-  pGeomCtx->pContext = pContext;
-  return tdsqlite3_create_function_v2(db, zGeom, -1, SQLITE_ANY, 
-      (void *)pGeomCtx, geomCallback, 0, 0, rtreeFreeCallback
-  );
-}
-
-/*
-** Register a new 2nd-generation geometry function for use with the
-** r-tree MATCH operator.
-*/
-SQLITE_API int tdsqlite3_rtree_query_callback(
-  tdsqlite3 *db,                 /* Register SQL function on this connection */
-  const char *zQueryFunc,      /* Name of new SQL function */
-  int (*xQueryFunc)(tdsqlite3_rtree_query_info*), /* Callback */
-  void *pContext,              /* Extra data passed into the callback */
-  void (*xDestructor)(void*)   /* Destructor for the extra data */
-){
-  RtreeGeomCallback *pGeomCtx;      /* Context object for new user-function */
-
-  /* Allocate and populate the context object. */
-  pGeomCtx = (RtreeGeomCallback *)tdsqlite3_malloc(sizeof(RtreeGeomCallback));
-  if( !pGeomCtx ) return SQLITE_NOMEM;
-  pGeomCtx->xGeom = 0;
-  pGeomCtx->xQueryFunc = xQueryFunc;
-  pGeomCtx->xDestructor = xDestructor;
-  pGeomCtx->pContext = pContext;
-  return tdsqlite3_create_function_v2(db, zQueryFunc, -1, SQLITE_ANY, 
-      (void *)pGeomCtx, geomCallback, 0, 0, rtreeFreeCallback
-  );
-}
-
-#if !SQLITE_CORE
-#ifdef _WIN32
-__declspec(dllexport)
-#endif
-SQLITE_API int tdsqlite3_rtree_init(
-  tdsqlite3 *db,
-  char **pzErrMsg,
-  const tdsqlite3_api_routines *pApi
-){
-  SQLITE_EXTENSION_INIT2(pApi)
-  return tdsqlite3RtreeInit(db);
-}
-#endif
-
-#endif
-
-/************** End of rtree.c ***********************************************/
-/************** Begin file icu.c *********************************************/
-/*
-** 2007 May 6
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** $Id: icu.c,v 1.7 2007/12/13 21:54:11 drh Exp $
-**
-** This file implements an integration between the ICU library 
-** ("International Components for Unicode", an open-source library 
-** for handling unicode data) and SQLite. The integration uses 
-** ICU to provide the following to SQLite:
-**
-**   * An implementation of the SQL regexp() function (and hence REGEXP
-**     operator) using the ICU uregex_XX() APIs.
-**
-**   * Implementations of the SQL scalar upper() and lower() functions
-**     for case mapping.
-**
-**   * Integration of ICU and SQLite collation sequences.
-**
-**   * An implementation of the LIKE operator that uses ICU to 
-**     provide case-independent matching.
-*/
-
-#if !defined(SQLITE_CORE)                  \
- || defined(SQLITE_ENABLE_ICU)             \
- || defined(SQLITE_ENABLE_ICU_COLLATIONS)
-
-/* Include ICU headers */
-#include <unicode/utypes.h>
-#include <unicode/uregex.h>
-#include <unicode/ustring.h>
-#include <unicode/ucol.h>
-
-/* #include <assert.h> */
-
-#ifndef SQLITE_CORE
-/*   #include "tdsqlite3ext.h" */
-  SQLITE_EXTENSION_INIT1
-#else
-/*   #include "sqlite3.h" */
-#endif
-
-/*
-** This function is called when an ICU function called from within
-** the implementation of an SQL scalar function returns an error.
-**
-** The scalar function context passed as the first argument is 
-** loaded with an error message based on the following two args.
-*/
-static void icuFunctionError(
-  tdsqlite3_context *pCtx,       /* SQLite scalar function context */
-  const char *zName,           /* Name of ICU function that failed */
-  UErrorCode e                 /* Error code returned by ICU function */
-){
-  char zBuf[128];
-  tdsqlite3_snprintf(128, zBuf, "ICU error: %s(): %s", zName, u_errorName(e));
-  zBuf[127] = '\0';
-  tdsqlite3_result_error(pCtx, zBuf, -1);
-}
-
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU)
-
-/*
-** Maximum length (in bytes) of the pattern in a LIKE or GLOB
-** operator.
-*/
-#ifndef SQLITE_MAX_LIKE_PATTERN_LENGTH
-# define SQLITE_MAX_LIKE_PATTERN_LENGTH 50000
-#endif
-
-/*
-** Version of tdsqlite3_free() that is always a function, never a macro.
-*/
-static void xFree(void *p){
-  tdsqlite3_free(p);
-}
-
-/*
-** This lookup table is used to help decode the first byte of
-** a multi-byte UTF8 character. It is copied here from SQLite source
-** code file utf8.c.
-*/
-static const unsigned char icuUtf8Trans1[] = {
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
-  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
-};
-
-#define SQLITE_ICU_READ_UTF8(zIn, c)                       \
-  c = *(zIn++);                                            \
-  if( c>=0xc0 ){                                           \
-    c = icuUtf8Trans1[c-0xc0];                             \
-    while( (*zIn & 0xc0)==0x80 ){                          \
-      c = (c<<6) + (0x3f & *(zIn++));                      \
-    }                                                      \
-  }
-
-#define SQLITE_ICU_SKIP_UTF8(zIn)                          \
-  assert( *zIn );                                          \
-  if( *(zIn++)>=0xc0 ){                                    \
-    while( (*zIn & 0xc0)==0x80 ){zIn++;}                   \
-  }
-
-
-/*
-** Compare two UTF-8 strings for equality where the first string is
-** a "LIKE" expression. Return true (1) if they are the same and 
-** false (0) if they are different.
-*/
-static int icuLikeCompare(
-  const uint8_t *zPattern,   /* LIKE pattern */
-  const uint8_t *zString,    /* The UTF-8 string to compare against */
-  const UChar32 uEsc         /* The escape character */
-){
-  static const uint32_t MATCH_ONE = (uint32_t)'_';
-  static const uint32_t MATCH_ALL = (uint32_t)'%';
-
-  int prevEscape = 0;     /* True if the previous character was uEsc */
-
-  while( 1 ){
-
-    /* Read (and consume) the next character from the input pattern. */
-    uint32_t uPattern;
-    SQLITE_ICU_READ_UTF8(zPattern, uPattern);
-    if( uPattern==0 ) break;
-
-    /* There are now 4 possibilities:
-    **
-    **     1. uPattern is an unescaped match-all character "%",
-    **     2. uPattern is an unescaped match-one character "_",
-    **     3. uPattern is an unescaped escape character, or
-    **     4. uPattern is to be handled as an ordinary character
-    */
-    if( !prevEscape && uPattern==MATCH_ALL ){
-      /* Case 1. */
-      uint8_t c;
-
-      /* Skip any MATCH_ALL or MATCH_ONE characters that follow a
-      ** MATCH_ALL. For each MATCH_ONE, skip one character in the 
-      ** test string.
-      */
-      while( (c=*zPattern) == MATCH_ALL || c == MATCH_ONE ){
-        if( c==MATCH_ONE ){
-          if( *zString==0 ) return 0;
-          SQLITE_ICU_SKIP_UTF8(zString);
-        }
-        zPattern++;
-      }
-
-      if( *zPattern==0 ) return 1;
-
-      while( *zString ){
-        if( icuLikeCompare(zPattern, zString, uEsc) ){
-          return 1;
-        }
-        SQLITE_ICU_SKIP_UTF8(zString);
-      }
-      return 0;
-
-    }else if( !prevEscape && uPattern==MATCH_ONE ){
-      /* Case 2. */
-      if( *zString==0 ) return 0;
-      SQLITE_ICU_SKIP_UTF8(zString);
-
-    }else if( !prevEscape && uPattern==(uint32_t)uEsc){
-      /* Case 3. */
-      prevEscape = 1;
-
-    }else{
-      /* Case 4. */
-      uint32_t uString;
-      SQLITE_ICU_READ_UTF8(zString, uString);
-      uString = (uint32_t)u_foldCase((UChar32)uString, U_FOLD_CASE_DEFAULT);
-      uPattern = (uint32_t)u_foldCase((UChar32)uPattern, U_FOLD_CASE_DEFAULT);
-      if( uString!=uPattern ){
-        return 0;
-      }
-      prevEscape = 0;
-    }
-  }
-
-  return *zString==0;
-}
-
-/*
-** Implementation of the like() SQL function.  This function implements
-** the build-in LIKE operator.  The first argument to the function is the
-** pattern and the second argument is the string.  So, the SQL statements:
-**
-**       A LIKE B
-**
-** is implemented as like(B, A). If there is an escape character E, 
-**
-**       A LIKE B ESCAPE E
-**
-** is mapped to like(B, A, E).
-*/
-static void icuLikeFunc(
-  tdsqlite3_context *context, 
-  int argc, 
-  tdsqlite3_value **argv
-){
-  const unsigned char *zA = tdsqlite3_value_text(argv[0]);
-  const unsigned char *zB = tdsqlite3_value_text(argv[1]);
-  UChar32 uEsc = 0;
-
-  /* Limit the length of the LIKE or GLOB pattern to avoid problems
-  ** of deep recursion and N*N behavior in patternCompare().
-  */
-  if( tdsqlite3_value_bytes(argv[0])>SQLITE_MAX_LIKE_PATTERN_LENGTH ){
-    tdsqlite3_result_error(context, "LIKE or GLOB pattern too complex", -1);
-    return;
-  }
-
-
-  if( argc==3 ){
-    /* The escape character string must consist of a single UTF-8 character.
-    ** Otherwise, return an error.
-    */
-    int nE= tdsqlite3_value_bytes(argv[2]);
-    const unsigned char *zE = tdsqlite3_value_text(argv[2]);
-    int i = 0;
-    if( zE==0 ) return;
-    U8_NEXT(zE, i, nE, uEsc);
-    if( i!=nE){
-      tdsqlite3_result_error(context, 
-          "ESCAPE expression must be a single character", -1);
-      return;
-    }
-  }
-
-  if( zA && zB ){
-    tdsqlite3_result_int(context, icuLikeCompare(zA, zB, uEsc));
-  }
-}
-
-/*
-** Function to delete compiled regexp objects. Registered as
-** a destructor function with tdsqlite3_set_auxdata().
-*/
-static void icuRegexpDelete(void *p){
-  URegularExpression *pExpr = (URegularExpression *)p;
-  uregex_close(pExpr);
-}
-
-/*
-** Implementation of SQLite REGEXP operator. This scalar function takes
-** two arguments. The first is a regular expression pattern to compile
-** the second is a string to match against that pattern. If either 
-** argument is an SQL NULL, then NULL Is returned. Otherwise, the result
-** is 1 if the string matches the pattern, or 0 otherwise.
-**
-** SQLite maps the regexp() function to the regexp() operator such
-** that the following two are equivalent:
-**
-**     zString REGEXP zPattern
-**     regexp(zPattern, zString)
-**
-** Uses the following ICU regexp APIs:
-**
-**     uregex_open()
-**     uregex_matches()
-**     uregex_close()
-*/
-static void icuRegexpFunc(tdsqlite3_context *p, int nArg, tdsqlite3_value **apArg){
-  UErrorCode status = U_ZERO_ERROR;
-  URegularExpression *pExpr;
-  UBool res;
-  const UChar *zString = tdsqlite3_value_text16(apArg[1]);
-
-  (void)nArg;  /* Unused parameter */
-
-  /* If the left hand side of the regexp operator is NULL, 
-  ** then the result is also NULL. 
-  */
-  if( !zString ){
-    return;
-  }
-
-  pExpr = tdsqlite3_get_auxdata(p, 0);
-  if( !pExpr ){
-    const UChar *zPattern = tdsqlite3_value_text16(apArg[0]);
-    if( !zPattern ){
-      return;
-    }
-    pExpr = uregex_open(zPattern, -1, 0, 0, &status);
-
-    if( U_SUCCESS(status) ){
-      tdsqlite3_set_auxdata(p, 0, pExpr, icuRegexpDelete);
-    }else{
-      assert(!pExpr);
-      icuFunctionError(p, "uregex_open", status);
-      return;
-    }
-  }
-
-  /* Configure the text that the regular expression operates on. */
-  uregex_setText(pExpr, zString, -1, &status);
-  if( !U_SUCCESS(status) ){
-    icuFunctionError(p, "uregex_setText", status);
-    return;
-  }
-
-  /* Attempt the match */
-  res = uregex_matches(pExpr, 0, &status);
-  if( !U_SUCCESS(status) ){
-    icuFunctionError(p, "uregex_matches", status);
-    return;
-  }
-
-  /* Set the text that the regular expression operates on to a NULL
-  ** pointer. This is not really necessary, but it is tidier than 
-  ** leaving the regular expression object configured with an invalid
-  ** pointer after this function returns.
-  */
-  uregex_setText(pExpr, 0, 0, &status);
-
-  /* Return 1 or 0. */
-  tdsqlite3_result_int(p, res ? 1 : 0);
-}
-
-/*
-** Implementations of scalar functions for case mapping - upper() and 
-** lower(). Function upper() converts its input to upper-case (ABC).
-** Function lower() converts to lower-case (abc).
-**
-** ICU provides two types of case mapping, "general" case mapping and
-** "language specific". Refer to ICU documentation for the differences
-** between the two.
-**
-** To utilise "general" case mapping, the upper() or lower() scalar 
-** functions are invoked with one argument:
-**
-**     upper('ABC') -> 'abc'
-**     lower('abc') -> 'ABC'
-**
-** To access ICU "language specific" case mapping, upper() or lower()
-** should be invoked with two arguments. The second argument is the name
-** of the locale to use. Passing an empty string ("") or SQL NULL value
-** as the second argument is the same as invoking the 1 argument version
-** of upper() or lower().
-**
-**     lower('I', 'en_us') -> 'i'
-**     lower('I', 'tr_tr') -> '\u131' (small dotless i)
-**
-** http://www.icu-project.org/userguide/posix.html#case_mappings
-*/
-static void icuCaseFunc16(tdsqlite3_context *p, int nArg, tdsqlite3_value **apArg){
-  const UChar *zInput;            /* Pointer to input string */
-  UChar *zOutput = 0;             /* Pointer to output buffer */
-  int nInput;                     /* Size of utf-16 input string in bytes */
-  int nOut;                       /* Size of output buffer in bytes */
-  int cnt;
-  int bToUpper;                   /* True for toupper(), false for tolower() */
-  UErrorCode status;
-  const char *zLocale = 0;
-
-  assert(nArg==1 || nArg==2);
-  bToUpper = (tdsqlite3_user_data(p)!=0);
-  if( nArg==2 ){
-    zLocale = (const char *)tdsqlite3_value_text(apArg[1]);
-  }
-
-  zInput = tdsqlite3_value_text16(apArg[0]);
-  if( !zInput ){
-    return;
-  }
-  nOut = nInput = tdsqlite3_value_bytes16(apArg[0]);
-  if( nOut==0 ){
-    tdsqlite3_result_text16(p, "", 0, SQLITE_STATIC);
-    return;
-  }
-
-  for(cnt=0; cnt<2; cnt++){
-    UChar *zNew = tdsqlite3_realloc(zOutput, nOut);
-    if( zNew==0 ){
-      tdsqlite3_free(zOutput);
-      tdsqlite3_result_error_nomem(p);
-      return;
-    }
-    zOutput = zNew;
-    status = U_ZERO_ERROR;
-    if( bToUpper ){
-      nOut = 2*u_strToUpper(zOutput,nOut/2,zInput,nInput/2,zLocale,&status);
-    }else{
-      nOut = 2*u_strToLower(zOutput,nOut/2,zInput,nInput/2,zLocale,&status);
-    }
-
-    if( U_SUCCESS(status) ){
-      tdsqlite3_result_text16(p, zOutput, nOut, xFree);
-    }else if( status==U_BUFFER_OVERFLOW_ERROR ){
-      assert( cnt==0 );
-      continue;
-    }else{
-      icuFunctionError(p, bToUpper ? "u_strToUpper" : "u_strToLower", status);
-    }
-    return;
-  }
-  assert( 0 );     /* Unreachable */
-}
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU) */
-
-/*
-** Collation sequence destructor function. The pCtx argument points to
-** a UCollator structure previously allocated using ucol_open().
-*/
-static void icuCollationDel(void *pCtx){
-  UCollator *p = (UCollator *)pCtx;
-  ucol_close(p);
-}
-
-/*
-** Collation sequence comparison function. The pCtx argument points to
-** a UCollator structure previously allocated using ucol_open().
-*/
-static int icuCollationColl(
-  void *pCtx,
-  int nLeft,
-  const void *zLeft,
-  int nRight,
-  const void *zRight
-){
-  UCollationResult res;
-  UCollator *p = (UCollator *)pCtx;
-  res = ucol_strcoll(p, (UChar *)zLeft, nLeft/2, (UChar *)zRight, nRight/2);
-  switch( res ){
-    case UCOL_LESS:    return -1;
-    case UCOL_GREATER: return +1;
-    case UCOL_EQUAL:   return 0;
-  }
-  assert(!"Unexpected return value from ucol_strcoll()");
-  return 0;
-}
-
-/*
-** Implementation of the scalar function icu_load_collation().
-**
-** This scalar function is used to add ICU collation based collation 
-** types to an SQLite database connection. It is intended to be called
-** as follows:
-**
-**     SELECT icu_load_collation(<locale>, <collation-name>);
-**
-** Where <locale> is a string containing an ICU locale identifier (i.e.
-** "en_AU", "tr_TR" etc.) and <collation-name> is the name of the
-** collation sequence to create.
-*/
-static void icuLoadCollation(
-  tdsqlite3_context *p, 
-  int nArg, 
-  tdsqlite3_value **apArg
-){
-  tdsqlite3 *db = (tdsqlite3 *)tdsqlite3_user_data(p);
-  UErrorCode status = U_ZERO_ERROR;
-  const char *zLocale;      /* Locale identifier - (eg. "jp_JP") */
-  const char *zName;        /* SQL Collation sequence name (eg. "japanese") */
-  UCollator *pUCollator;    /* ICU library collation object */
-  int rc;                   /* Return code from tdsqlite3_create_collation_x() */
-
-  assert(nArg==2);
-  (void)nArg; /* Unused parameter */
-  zLocale = (const char *)tdsqlite3_value_text(apArg[0]);
-  zName = (const char *)tdsqlite3_value_text(apArg[1]);
-
-  if( !zLocale || !zName ){
-    return;
-  }
-
-  pUCollator = ucol_open(zLocale, &status);
-  if( !U_SUCCESS(status) ){
-    icuFunctionError(p, "ucol_open", status);
-    return;
-  }
-  assert(p);
-
-  rc = tdsqlite3_create_collation_v2(db, zName, SQLITE_UTF16, (void *)pUCollator, 
-      icuCollationColl, icuCollationDel
-  );
-  if( rc!=SQLITE_OK ){
-    ucol_close(pUCollator);
-    tdsqlite3_result_error(p, "Error registering collation function", -1);
-  }
-}
-
-/*
-** Register the ICU extension functions with database db.
-*/
-SQLITE_PRIVATE int tdsqlite3IcuInit(tdsqlite3 *db){
-# define SQLITEICU_EXTRAFLAGS (SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS)
-  static const struct IcuScalar {
-    const char *zName;                        /* Function name */
-    unsigned char nArg;                       /* Number of arguments */
-    unsigned int enc;                         /* Optimal text encoding */
-    unsigned char iContext;                   /* tdsqlite3_user_data() context */
-    void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**);
-  } scalars[] = {
-    {"icu_load_collation",2,SQLITE_UTF8|SQLITE_DIRECTONLY,1, icuLoadCollation},
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU)
-    {"regexp", 2, SQLITE_ANY|SQLITEICU_EXTRAFLAGS,         0, icuRegexpFunc},
-    {"lower",  1, SQLITE_UTF16|SQLITEICU_EXTRAFLAGS,       0, icuCaseFunc16},
-    {"lower",  2, SQLITE_UTF16|SQLITEICU_EXTRAFLAGS,       0, icuCaseFunc16},
-    {"upper",  1, SQLITE_UTF16|SQLITEICU_EXTRAFLAGS,       1, icuCaseFunc16},
-    {"upper",  2, SQLITE_UTF16|SQLITEICU_EXTRAFLAGS,       1, icuCaseFunc16},
-    {"lower",  1, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        0, icuCaseFunc16},
-    {"lower",  2, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        0, icuCaseFunc16},
-    {"upper",  1, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        1, icuCaseFunc16},
-    {"upper",  2, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        1, icuCaseFunc16},
-    {"like",   2, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        0, icuLikeFunc},
-    {"like",   3, SQLITE_UTF8|SQLITEICU_EXTRAFLAGS,        0, icuLikeFunc},
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_ICU) */
-  };
-  int rc = SQLITE_OK;
-  int i;
-  
-  for(i=0; rc==SQLITE_OK && i<(int)(sizeof(scalars)/sizeof(scalars[0])); i++){
-    const struct IcuScalar *p = &scalars[i];
-    rc = tdsqlite3_create_function(
-        db, p->zName, p->nArg, p->enc, 
-        p->iContext ? (void*)db : (void*)0,
-        p->xFunc, 0, 0
-    );
-  }
-
-  return rc;
-}
-
-#if !SQLITE_CORE
-#ifdef _WIN32
-__declspec(dllexport)
-#endif
-SQLITE_API int tdsqlite3_icu_init(
-  tdsqlite3 *db, 
-  char **pzErrMsg,
-  const tdsqlite3_api_routines *pApi
-){
-  SQLITE_EXTENSION_INIT2(pApi)
-  return tdsqlite3IcuInit(db);
-}
-#endif
-
-#endif
-
-/************** End of icu.c *************************************************/
-/************** Begin file fts3_icu.c ****************************************/
-/*
-** 2007 June 22
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file implements a tokenizer for fts3 based on the ICU library.
-*/
-/* #include "fts3Int.h" */
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
-#ifdef SQLITE_ENABLE_ICU
-
-/* #include <assert.h> */
-/* #include <string.h> */
-/* #include "fts3_tokenizer.h" */
-
-#include <unicode/ubrk.h>
-/* #include <unicode/ucol.h> */
-/* #include <unicode/ustring.h> */
-#include <unicode/utf16.h>
-
-typedef struct IcuTokenizer IcuTokenizer;
-typedef struct IcuCursor IcuCursor;
-
-struct IcuTokenizer {
-  tdsqlite3_tokenizer base;
-  char *zLocale;
-};
-
-struct IcuCursor {
-  tdsqlite3_tokenizer_cursor base;
-
-  UBreakIterator *pIter;      /* ICU break-iterator object */
-  int nChar;                  /* Number of UChar elements in pInput */
-  UChar *aChar;               /* Copy of input using utf-16 encoding */
-  int *aOffset;               /* Offsets of each character in utf-8 input */
-
-  int nBuffer;
-  char *zBuffer;
-
-  int iToken;
-};
-
-/*
-** Create a new tokenizer instance.
-*/
-static int icuCreate(
-  int argc,                            /* Number of entries in argv[] */
-  const char * const *argv,            /* Tokenizer creation arguments */
-  tdsqlite3_tokenizer **ppTokenizer      /* OUT: Created tokenizer */
-){
-  IcuTokenizer *p;
-  int n = 0;
-
-  if( argc>0 ){
-    n = strlen(argv[0])+1;
-  }
-  p = (IcuTokenizer *)tdsqlite3_malloc64(sizeof(IcuTokenizer)+n);
-  if( !p ){
-    return SQLITE_NOMEM;
-  }
-  memset(p, 0, sizeof(IcuTokenizer));
-
-  if( n ){
-    p->zLocale = (char *)&p[1];
-    memcpy(p->zLocale, argv[0], n);
-  }
-
-  *ppTokenizer = (tdsqlite3_tokenizer *)p;
-
-  return SQLITE_OK;
-}
-
-/*
-** Destroy a tokenizer
-*/
-static int icuDestroy(tdsqlite3_tokenizer *pTokenizer){
-  IcuTokenizer *p = (IcuTokenizer *)pTokenizer;
-  tdsqlite3_free(p);
-  return SQLITE_OK;
-}
-
-/*
-** Prepare to begin tokenizing a particular string.  The input
-** string to be tokenized is pInput[0..nBytes-1].  A cursor
-** used to incrementally tokenize this string is returned in 
-** *ppCursor.
-*/
-static int icuOpen(
-  tdsqlite3_tokenizer *pTokenizer,         /* The tokenizer */
-  const char *zInput,                    /* Input string */
-  int nInput,                            /* Length of zInput in bytes */
-  tdsqlite3_tokenizer_cursor **ppCursor    /* OUT: Tokenization cursor */
-){
-  IcuTokenizer *p = (IcuTokenizer *)pTokenizer;
-  IcuCursor *pCsr;
-
-  const int32_t opt = U_FOLD_CASE_DEFAULT;
-  UErrorCode status = U_ZERO_ERROR;
-  int nChar;
-
-  UChar32 c;
-  int iInput = 0;
-  int iOut = 0;
-
-  *ppCursor = 0;
-
-  if( zInput==0 ){
-    nInput = 0;
-    zInput = "";
-  }else if( nInput<0 ){
-    nInput = strlen(zInput);
-  }
-  nChar = nInput+1;
-  pCsr = (IcuCursor *)tdsqlite3_malloc64(
-      sizeof(IcuCursor) +                /* IcuCursor */
-      ((nChar+3)&~3) * sizeof(UChar) +   /* IcuCursor.aChar[] */
-      (nChar+1) * sizeof(int)            /* IcuCursor.aOffset[] */
-  );
-  if( !pCsr ){
-    return SQLITE_NOMEM;
-  }
-  memset(pCsr, 0, sizeof(IcuCursor));
-  pCsr->aChar = (UChar *)&pCsr[1];
-  pCsr->aOffset = (int *)&pCsr->aChar[(nChar+3)&~3];
-
-  pCsr->aOffset[iOut] = iInput;
-  U8_NEXT(zInput, iInput, nInput, c); 
-  while( c>0 ){
-    int isError = 0;
-    c = u_foldCase(c, opt);
-    U16_APPEND(pCsr->aChar, iOut, nChar, c, isError);
-    if( isError ){
-      tdsqlite3_free(pCsr);
-      return SQLITE_ERROR;
-    }
-    pCsr->aOffset[iOut] = iInput;
-
-    if( iInput<nInput ){
-      U8_NEXT(zInput, iInput, nInput, c);
-    }else{
-      c = 0;
-    }
-  }
-
-  pCsr->pIter = ubrk_open(UBRK_WORD, p->zLocale, pCsr->aChar, iOut, &status);
-  if( !U_SUCCESS(status) ){
-    tdsqlite3_free(pCsr);
-    return SQLITE_ERROR;
-  }
-  pCsr->nChar = iOut;
-
-  ubrk_first(pCsr->pIter);
-  *ppCursor = (tdsqlite3_tokenizer_cursor *)pCsr;
-  return SQLITE_OK;
-}
-
-/*
-** Close a tokenization cursor previously opened by a call to icuOpen().
-*/
-static int icuClose(tdsqlite3_tokenizer_cursor *pCursor){
-  IcuCursor *pCsr = (IcuCursor *)pCursor;
-  ubrk_close(pCsr->pIter);
-  tdsqlite3_free(pCsr->zBuffer);
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-/*
-** Extract the next token from a tokenization cursor.
-*/
-static int icuNext(
-  tdsqlite3_tokenizer_cursor *pCursor,  /* Cursor returned by simpleOpen */
-  const char **ppToken,               /* OUT: *ppToken is the token text */
-  int *pnBytes,                       /* OUT: Number of bytes in token */
-  int *piStartOffset,                 /* OUT: Starting offset of token */
-  int *piEndOffset,                   /* OUT: Ending offset of token */
-  int *piPosition                     /* OUT: Position integer of token */
-){
-  IcuCursor *pCsr = (IcuCursor *)pCursor;
-
-  int iStart = 0;
-  int iEnd = 0;
-  int nByte = 0;
-
-  while( iStart==iEnd ){
-    UChar32 c;
-
-    iStart = ubrk_current(pCsr->pIter);
-    iEnd = ubrk_next(pCsr->pIter);
-    if( iEnd==UBRK_DONE ){
-      return SQLITE_DONE;
-    }
-
-    while( iStart<iEnd ){
-      int iWhite = iStart;
-      U16_NEXT(pCsr->aChar, iWhite, pCsr->nChar, c);
-      if( u_isspace(c) ){
-        iStart = iWhite;
-      }else{
-        break;
-      }
-    }
-    assert(iStart<=iEnd);
-  }
-
-  do {
-    UErrorCode status = U_ZERO_ERROR;
-    if( nByte ){
-      char *zNew = tdsqlite3_realloc(pCsr->zBuffer, nByte);
-      if( !zNew ){
-        return SQLITE_NOMEM;
-      }
-      pCsr->zBuffer = zNew;
-      pCsr->nBuffer = nByte;
-    }
-
-    u_strToUTF8(
-        pCsr->zBuffer, pCsr->nBuffer, &nByte,    /* Output vars */
-        &pCsr->aChar[iStart], iEnd-iStart,       /* Input vars */
-        &status                                  /* Output success/failure */
-    );
-  } while( nByte>pCsr->nBuffer );
-
-  *ppToken = pCsr->zBuffer;
-  *pnBytes = nByte;
-  *piStartOffset = pCsr->aOffset[iStart];
-  *piEndOffset = pCsr->aOffset[iEnd];
-  *piPosition = pCsr->iToken++;
-
-  return SQLITE_OK;
-}
-
-/*
-** The set of routines that implement the simple tokenizer
-*/
-static const tdsqlite3_tokenizer_module icuTokenizerModule = {
-  0,                           /* iVersion    */
-  icuCreate,                   /* xCreate     */
-  icuDestroy,                  /* xCreate     */
-  icuOpen,                     /* xOpen       */
-  icuClose,                    /* xClose      */
-  icuNext,                     /* xNext       */
-  0,                           /* xLanguageid */
-};
-
-/*
-** Set *ppModule to point at the implementation of the ICU tokenizer.
-*/
-SQLITE_PRIVATE void tdsqlite3Fts3IcuTokenizerModule(
-  tdsqlite3_tokenizer_module const**ppModule
-){
-  *ppModule = &icuTokenizerModule;
-}
-
-#endif /* defined(SQLITE_ENABLE_ICU) */
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3) */
-
-/************** End of fts3_icu.c ********************************************/
-/************** Begin file tdsqlite3rbu.c **************************************/
-/*
-** 2014 August 30
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-**
-** OVERVIEW 
-**
-**  The RBU extension requires that the RBU update be packaged as an
-**  SQLite database. The tables it expects to find are described in
-**  tdsqlite3rbu.h.  Essentially, for each table xyz in the target database
-**  that the user wishes to write to, a corresponding data_xyz table is
-**  created in the RBU database and populated with one row for each row to
-**  update, insert or delete from the target table.
-** 
-**  The update proceeds in three stages:
-** 
-**  1) The database is updated. The modified database pages are written
-**     to a *-oal file. A *-oal file is just like a *-wal file, except
-**     that it is named "<database>-oal" instead of "<database>-wal".
-**     Because regular SQLite clients do not look for file named
-**     "<database>-oal", they go on using the original database in
-**     rollback mode while the *-oal file is being generated.
-** 
-**     During this stage RBU does not update the database by writing
-**     directly to the target tables. Instead it creates "imposter"
-**     tables using the SQLITE_TESTCTRL_IMPOSTER interface that it uses
-**     to update each b-tree individually. All updates required by each
-**     b-tree are completed before moving on to the next, and all
-**     updates are done in sorted key order.
-** 
-**  2) The "<database>-oal" file is moved to the equivalent "<database>-wal"
-**     location using a call to rename(2). Before doing this the RBU
-**     module takes an EXCLUSIVE lock on the database file, ensuring
-**     that there are no other active readers.
-** 
-**     Once the EXCLUSIVE lock is released, any other database readers
-**     detect the new *-wal file and read the database in wal mode. At
-**     this point they see the new version of the database - including
-**     the updates made as part of the RBU update.
-** 
-**  3) The new *-wal file is checkpointed. This proceeds in the same way 
-**     as a regular database checkpoint, except that a single frame is
-**     checkpointed each time tdsqlite3rbu_step() is called. If the RBU
-**     handle is closed before the entire *-wal file is checkpointed,
-**     the checkpoint progress is saved in the RBU database and the
-**     checkpoint can be resumed by another RBU client at some point in
-**     the future.
-**
-** POTENTIAL PROBLEMS
-** 
-**  The rename() call might not be portable. And RBU is not currently
-**  syncing the directory after renaming the file.
-**
-**  When state is saved, any commit to the *-oal file and the commit to
-**  the RBU update database are not atomic. So if the power fails at the
-**  wrong moment they might get out of sync. As the main database will be
-**  committed before the RBU update database this will likely either just
-**  pass unnoticed, or result in SQLITE_CONSTRAINT errors (due to UNIQUE
-**  constraint violations).
-**
-**  If some client does modify the target database mid RBU update, or some
-**  other error occurs, the RBU extension will keep throwing errors. It's
-**  not really clear how to get out of this state. The system could just
-**  by delete the RBU update database and *-oal file and have the device
-**  download the update again and start over.
-**
-**  At present, for an UPDATE, both the new.* and old.* records are
-**  collected in the rbu_xyz table. And for both UPDATEs and DELETEs all
-**  fields are collected.  This means we're probably writing a lot more
-**  data to disk when saving the state of an ongoing update to the RBU
-**  update database than is strictly necessary.
-** 
-*/
-
-/* #include <assert.h> */
-/* #include <string.h> */
-/* #include <stdio.h> */
-
-/* #include "sqlite3.h" */
-
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_RBU)
-/************** Include tdsqlite3rbu.h in the middle of tdsqlite3rbu.c ***********/
-/************** Begin file tdsqlite3rbu.h **************************************/
-/*
-** 2014 August 30
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains the public interface for the RBU extension. 
-*/
-
-/*
-** SUMMARY
-**
-** Writing a transaction containing a large number of operations on 
-** b-tree indexes that are collectively larger than the available cache
-** memory can be very inefficient. 
-**
-** The problem is that in order to update a b-tree, the leaf page (at least)
-** containing the entry being inserted or deleted must be modified. If the
-** working set of leaves is larger than the available cache memory, then a 
-** single leaf that is modified more than once as part of the transaction 
-** may be loaded from or written to the persistent media multiple times.
-** Additionally, because the index updates are likely to be applied in
-** random order, access to pages within the database is also likely to be in 
-** random order, which is itself quite inefficient.
-**
-** One way to improve the situation is to sort the operations on each index
-** by index key before applying them to the b-tree. This leads to an IO
-** pattern that resembles a single linear scan through the index b-tree,
-** and all but guarantees each modified leaf page is loaded and stored 
-** exactly once. SQLite uses this trick to improve the performance of
-** CREATE INDEX commands. This extension allows it to be used to improve
-** the performance of large transactions on existing databases.
-**
-** Additionally, this extension allows the work involved in writing the 
-** large transaction to be broken down into sub-transactions performed 
-** sequentially by separate processes. This is useful if the system cannot 
-** guarantee that a single update process will run for long enough to apply 
-** the entire update, for example because the update is being applied on a 
-** mobile device that is frequently rebooted. Even after the writer process 
-** has committed one or more sub-transactions, other database clients continue
-** to read from the original database snapshot. In other words, partially 
-** applied transactions are not visible to other clients. 
-**
-** "RBU" stands for "Resumable Bulk Update". As in a large database update
-** transmitted via a wireless network to a mobile device. A transaction
-** applied using this extension is hence refered to as an "RBU update".
-**
-**
-** LIMITATIONS
-**
-** An "RBU update" transaction is subject to the following limitations:
-**
-**   * The transaction must consist of INSERT, UPDATE and DELETE operations
-**     only.
-**
-**   * INSERT statements may not use any default values.
-**
-**   * UPDATE and DELETE statements must identify their target rows by 
-**     non-NULL PRIMARY KEY values. Rows with NULL values stored in PRIMARY
-**     KEY fields may not be updated or deleted. If the table being written 
-**     has no PRIMARY KEY, affected rows must be identified by rowid.
-**
-**   * UPDATE statements may not modify PRIMARY KEY columns.
-**
-**   * No triggers will be fired.
-**
-**   * No foreign key violations are detected or reported.
-**
-**   * CHECK constraints are not enforced.
-**
-**   * No constraint handling mode except for "OR ROLLBACK" is supported.
-**
-**
-** PREPARATION
-**
-** An "RBU update" is stored as a separate SQLite database. A database
-** containing an RBU update is an "RBU database". For each table in the 
-** target database to be updated, the RBU database should contain a table
-** named "data_<target name>" containing the same set of columns as the
-** target table, and one more - "rbu_control". The data_% table should 
-** have no PRIMARY KEY or UNIQUE constraints, but each column should have
-** the same type as the corresponding column in the target database.
-** The "rbu_control" column should have no type at all. For example, if
-** the target database contains:
-**
-**   CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c UNIQUE);
-**
-** Then the RBU database should contain:
-**
-**   CREATE TABLE data_t1(a INTEGER, b TEXT, c, rbu_control);
-**
-** The order of the columns in the data_% table does not matter.
-**
-** Instead of a regular table, the RBU database may also contain virtual
-** tables or view named using the data_<target> naming scheme. 
-**
-** Instead of the plain data_<target> naming scheme, RBU database tables 
-** may also be named data<integer>_<target>, where <integer> is any sequence
-** of zero or more numeric characters (0-9). This can be significant because
-** tables within the RBU database are always processed in order sorted by 
-** name. By judicious selection of the <integer> portion of the names
-** of the RBU tables the user can therefore control the order in which they
-** are processed. This can be useful, for example, to ensure that "external
-** content" FTS4 tables are updated before their underlying content tables.
-**
-** If the target database table is a virtual table or a table that has no
-** PRIMARY KEY declaration, the data_% table must also contain a column 
-** named "rbu_rowid". This column is mapped to the tables implicit primary 
-** key column - "rowid". Virtual tables for which the "rowid" column does 
-** not function like a primary key value cannot be updated using RBU. For 
-** example, if the target db contains either of the following:
-**
-**   CREATE VIRTUAL TABLE x1 USING fts3(a, b);
-**   CREATE TABLE x1(a, b)
-**
-** then the RBU database should contain:
-**
-**   CREATE TABLE data_x1(a, b, rbu_rowid, rbu_control);
-**
-** All non-hidden columns (i.e. all columns matched by "SELECT *") of the
-** target table must be present in the input table. For virtual tables,
-** hidden columns are optional - they are updated by RBU if present in
-** the input table, or not otherwise. For example, to write to an fts4
-** table with a hidden languageid column such as:
-**
-**   CREATE VIRTUAL TABLE ft1 USING fts4(a, b, languageid='langid');
-**
-** Either of the following input table schemas may be used:
-**
-**   CREATE TABLE data_ft1(a, b, langid, rbu_rowid, rbu_control);
-**   CREATE TABLE data_ft1(a, b, rbu_rowid, rbu_control);
-**
-** For each row to INSERT into the target database as part of the RBU 
-** update, the corresponding data_% table should contain a single record
-** with the "rbu_control" column set to contain integer value 0. The
-** other columns should be set to the values that make up the new record 
-** to insert. 
-**
-** If the target database table has an INTEGER PRIMARY KEY, it is not 
-** possible to insert a NULL value into the IPK column. Attempting to 
-** do so results in an SQLITE_MISMATCH error.
-**
-** For each row to DELETE from the target database as part of the RBU 
-** update, the corresponding data_% table should contain a single record
-** with the "rbu_control" column set to contain integer value 1. The
-** real primary key values of the row to delete should be stored in the
-** corresponding columns of the data_% table. The values stored in the
-** other columns are not used.
-**
-** For each row to UPDATE from the target database as part of the RBU 
-** update, the corresponding data_% table should contain a single record
-** with the "rbu_control" column set to contain a value of type text.
-** The real primary key values identifying the row to update should be 
-** stored in the corresponding columns of the data_% table row, as should
-** the new values of all columns being update. The text value in the 
-** "rbu_control" column must contain the same number of characters as
-** there are columns in the target database table, and must consist entirely
-** of 'x' and '.' characters (or in some special cases 'd' - see below). For 
-** each column that is being updated, the corresponding character is set to
-** 'x'. For those that remain as they are, the corresponding character of the
-** rbu_control value should be set to '.'. For example, given the tables 
-** above, the update statement:
-**
-**   UPDATE t1 SET c = 'usa' WHERE a = 4;
-**
-** is represented by the data_t1 row created by:
-**
-**   INSERT INTO data_t1(a, b, c, rbu_control) VALUES(4, NULL, 'usa', '..x');
-**
-** Instead of an 'x' character, characters of the rbu_control value specified
-** for UPDATEs may also be set to 'd'. In this case, instead of updating the
-** target table with the value stored in the corresponding data_% column, the
-** user-defined SQL function "rbu_delta()" is invoked and the result stored in
-** the target table column. rbu_delta() is invoked with two arguments - the
-** original value currently stored in the target table column and the 
-** value specified in the data_xxx table.
-**
-** For example, this row:
-**
-**   INSERT INTO data_t1(a, b, c, rbu_control) VALUES(4, NULL, 'usa', '..d');
-**
-** is similar to an UPDATE statement such as: 
-**
-**   UPDATE t1 SET c = rbu_delta(c, 'usa') WHERE a = 4;
-**
-** Finally, if an 'f' character appears in place of a 'd' or 's' in an 
-** ota_control string, the contents of the data_xxx table column is assumed
-** to be a "fossil delta" - a patch to be applied to a blob value in the
-** format used by the fossil source-code management system. In this case
-** the existing value within the target database table must be of type BLOB. 
-** It is replaced by the result of applying the specified fossil delta to
-** itself.
-**
-** If the target database table is a virtual table or a table with no PRIMARY
-** KEY, the rbu_control value should not include a character corresponding 
-** to the rbu_rowid value. For example, this:
-**
-**   INSERT INTO data_ft1(a, b, rbu_rowid, rbu_control) 
-**       VALUES(NULL, 'usa', 12, '.x');
-**
-** causes a result similar to:
-**
-**   UPDATE ft1 SET b = 'usa' WHERE rowid = 12;
-**
-** The data_xxx tables themselves should have no PRIMARY KEY declarations.
-** However, RBU is more efficient if reading the rows in from each data_xxx
-** table in "rowid" order is roughly the same as reading them sorted by
-** the PRIMARY KEY of the corresponding target database table. In other 
-** words, rows should be sorted using the destination table PRIMARY KEY 
-** fields before they are inserted into the data_xxx tables.
-**
-** USAGE
-**
-** The API declared below allows an application to apply an RBU update 
-** stored on disk to an existing target database. Essentially, the 
-** application:
-**
-**     1) Opens an RBU handle using the tdsqlite3rbu_open() function.
-**
-**     2) Registers any required virtual table modules with the database
-**        handle returned by tdsqlite3rbu_db(). Also, if required, register
-**        the rbu_delta() implementation.
-**
-**     3) Calls the tdsqlite3rbu_step() function one or more times on
-**        the new handle. Each call to tdsqlite3rbu_step() performs a single
-**        b-tree operation, so thousands of calls may be required to apply 
-**        a complete update.
-**
-**     4) Calls tdsqlite3rbu_close() to close the RBU update handle. If
-**        tdsqlite3rbu_step() has been called enough times to completely
-**        apply the update to the target database, then the RBU database
-**        is marked as fully applied. Otherwise, the state of the RBU 
-**        update application is saved in the RBU database for later 
-**        resumption.
-**
-** See comments below for more detail on APIs.
-**
-** If an update is only partially applied to the target database by the
-** time tdsqlite3rbu_close() is called, various state information is saved 
-** within the RBU database. This allows subsequent processes to automatically
-** resume the RBU update from where it left off.
-**
-** To remove all RBU extension state information, returning an RBU database 
-** to its original contents, it is sufficient to drop all tables that begin
-** with the prefix "rbu_"
-**
-** DATABASE LOCKING
-**
-** An RBU update may not be applied to a database in WAL mode. Attempting
-** to do so is an error (SQLITE_ERROR).
-**
-** While an RBU handle is open, a SHARED lock may be held on the target
-** database file. This means it is possible for other clients to read the
-** database, but not to write it.
-**
-** If an RBU update is started and then suspended before it is completed,
-** then an external client writes to the database, then attempting to resume
-** the suspended RBU update is also an error (SQLITE_BUSY).
-*/
-
-#ifndef _SQLITE3RBU_H
-#define _SQLITE3RBU_H
-
-/* #include "sqlite3.h"              ** Required for error code definitions ** */
-
-#if 0
-extern "C" {
-#endif
-
-typedef struct tdsqlite3rbu tdsqlite3rbu;
-
-/*
-** Open an RBU handle.
-**
-** Argument zTarget is the path to the target database. Argument zRbu is
-** the path to the RBU database. Each call to this function must be matched
-** by a call to tdsqlite3rbu_close(). When opening the databases, RBU passes
-** the SQLITE_CONFIG_URI flag to tdsqlite3_open_v2(). So if either zTarget
-** or zRbu begin with "file:", it will be interpreted as an SQLite 
-** database URI, not a regular file name.
-**
-** If the zState argument is passed a NULL value, the RBU extension stores 
-** the current state of the update (how many rows have been updated, which 
-** indexes are yet to be updated etc.) within the RBU database itself. This
-** can be convenient, as it means that the RBU application does not need to
-** organize removing a separate state file after the update is concluded. 
-** Or, if zState is non-NULL, it must be a path to a database file in which 
-** the RBU extension can store the state of the update.
-**
-** When resuming an RBU update, the zState argument must be passed the same
-** value as when the RBU update was started.
-**
-** Once the RBU update is finished, the RBU extension does not 
-** automatically remove any zState database file, even if it created it.
-**
-** By default, RBU uses the default VFS to access the files on disk. To
-** use a VFS other than the default, an SQLite "file:" URI containing a
-** "vfs=..." option may be passed as the zTarget option.
-**
-** IMPORTANT NOTE FOR ZIPVFS USERS: The RBU extension works with all of
-** SQLite's built-in VFSs, including the multiplexor VFS. However it does
-** not work out of the box with zipvfs. Refer to the comment describing
-** the zipvfs_create_vfs() API below for details on using RBU with zipvfs.
-*/
-SQLITE_API tdsqlite3rbu *tdsqlite3rbu_open(
-  const char *zTarget, 
-  const char *zRbu,
-  const char *zState
-);
-
-/*
-** Open an RBU handle to perform an RBU vacuum on database file zTarget.
-** An RBU vacuum is similar to SQLite's built-in VACUUM command, except
-** that it can be suspended and resumed like an RBU update.
-**
-** The second argument to this function identifies a database in which 
-** to store the state of the RBU vacuum operation if it is suspended. The 
-** first time tdsqlite3rbu_vacuum() is called, to start an RBU vacuum
-** operation, the state database should either not exist or be empty
-** (contain no tables). If an RBU vacuum is suspended by calling 
-** tdsqlite3rbu_close() on the RBU handle before tdsqlite3rbu_step() has
-** returned SQLITE_DONE, the vacuum state is stored in the state database. 
-** The vacuum can be resumed by calling this function to open a new RBU
-** handle specifying the same target and state databases.
-**
-** If the second argument passed to this function is NULL, then the
-** name of the state database is "<database>-vacuum", where <database>
-** is the name of the target database file. In this case, on UNIX, if the
-** state database is not already present in the file-system, it is created
-** with the same permissions as the target db is made. 
-**
-** With an RBU vacuum, it is an SQLITE_MISUSE error if the name of the 
-** state database ends with "-vactmp". This name is reserved for internal 
-** use.
-**
-** This function does not delete the state database after an RBU vacuum
-** is completed, even if it created it. However, if the call to
-** tdsqlite3rbu_close() returns any value other than SQLITE_OK, the contents
-** of the state tables within the state database are zeroed. This way,
-** the next call to tdsqlite3rbu_vacuum() opens a handle that starts a 
-** new RBU vacuum operation.
-**
-** As with tdsqlite3rbu_open(), Zipvfs users should rever to the comment
-** describing the tdsqlite3rbu_create_vfs() API function below for 
-** a description of the complications associated with using RBU with 
-** zipvfs databases.
-*/
-SQLITE_API tdsqlite3rbu *tdsqlite3rbu_vacuum(
-  const char *zTarget, 
-  const char *zState
-);
-
-/*
-** Configure a limit for the amount of temp space that may be used by
-** the RBU handle passed as the first argument. The new limit is specified
-** in bytes by the second parameter. If it is positive, the limit is updated.
-** If the second parameter to this function is passed zero, then the limit
-** is removed entirely. If the second parameter is negative, the limit is
-** not modified (this is useful for querying the current limit).
-**
-** In all cases the returned value is the current limit in bytes (zero 
-** indicates unlimited).
-**
-** If the temp space limit is exceeded during operation, an SQLITE_FULL
-** error is returned.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3rbu_temp_size_limit(tdsqlite3rbu*, tdsqlite3_int64);
-
-/*
-** Return the current amount of temp file space, in bytes, currently used by 
-** the RBU handle passed as the only argument.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3rbu_temp_size(tdsqlite3rbu*);
-
-/*
-** Internally, each RBU connection uses a separate SQLite database 
-** connection to access the target and rbu update databases. This
-** API allows the application direct access to these database handles.
-**
-** The first argument passed to this function must be a valid, open, RBU
-** handle. The second argument should be passed zero to access the target
-** database handle, or non-zero to access the rbu update database handle.
-** Accessing the underlying database handles may be useful in the
-** following scenarios:
-**
-**   * If any target tables are virtual tables, it may be necessary to
-**     call tdsqlite3_create_module() on the target database handle to 
-**     register the required virtual table implementations.
-**
-**   * If the data_xxx tables in the RBU source database are virtual 
-**     tables, the application may need to call tdsqlite3_create_module() on
-**     the rbu update db handle to any required virtual table
-**     implementations.
-**
-**   * If the application uses the "rbu_delta()" feature described above,
-**     it must use tdsqlite3_create_function() or similar to register the
-**     rbu_delta() implementation with the target database handle.
-**
-** If an error has occurred, either while opening or stepping the RBU object,
-** this function may return NULL. The error code and message may be collected
-** when tdsqlite3rbu_close() is called.
-**
-** Database handles returned by this function remain valid until the next
-** call to any tdsqlite3rbu_xxx() function other than tdsqlite3rbu_db().
-*/
-SQLITE_API tdsqlite3 *tdsqlite3rbu_db(tdsqlite3rbu*, int bRbu);
-
-/*
-** Do some work towards applying the RBU update to the target db. 
-**
-** Return SQLITE_DONE if the update has been completely applied, or 
-** SQLITE_OK if no error occurs but there remains work to do to apply
-** the RBU update. If an error does occur, some other error code is 
-** returned. 
-**
-** Once a call to tdsqlite3rbu_step() has returned a value other than
-** SQLITE_OK, all subsequent calls on the same RBU handle are no-ops
-** that immediately return the same value.
-*/
-SQLITE_API int tdsqlite3rbu_step(tdsqlite3rbu *pRbu);
-
-/*
-** Force RBU to save its state to disk.
-**
-** If a power failure or application crash occurs during an update, following
-** system recovery RBU may resume the update from the point at which the state
-** was last saved. In other words, from the most recent successful call to 
-** tdsqlite3rbu_close() or this function.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-*/
-SQLITE_API int tdsqlite3rbu_savestate(tdsqlite3rbu *pRbu);
-
-/*
-** Close an RBU handle. 
-**
-** If the RBU update has been completely applied, mark the RBU database
-** as fully applied. Otherwise, assuming no error has occurred, save the
-** current state of the RBU update appliation to the RBU database.
-**
-** If an error has already occurred as part of an tdsqlite3rbu_step()
-** or tdsqlite3rbu_open() call, or if one occurs within this function, an
-** SQLite error code is returned. Additionally, if pzErrmsg is not NULL,
-** *pzErrmsg may be set to point to a buffer containing a utf-8 formatted
-** English language error message. It is the responsibility of the caller to
-** eventually free any such buffer using tdsqlite3_free().
-**
-** Otherwise, if no error occurs, this function returns SQLITE_OK if the
-** update has been partially applied, or SQLITE_DONE if it has been 
-** completely applied.
-*/
-SQLITE_API int tdsqlite3rbu_close(tdsqlite3rbu *pRbu, char **pzErrmsg);
-
-/*
-** Return the total number of key-value operations (inserts, deletes or 
-** updates) that have been performed on the target database since the
-** current RBU update was started.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3rbu_progress(tdsqlite3rbu *pRbu);
-
-/*
-** Obtain permyriadage (permyriadage is to 10000 as percentage is to 100) 
-** progress indications for the two stages of an RBU update. This API may
-** be useful for driving GUI progress indicators and similar.
-**
-** An RBU update is divided into two stages:
-**
-**   * Stage 1, in which changes are accumulated in an oal/wal file, and
-**   * Stage 2, in which the contents of the wal file are copied into the
-**     main database.
-**
-** The update is visible to non-RBU clients during stage 2. During stage 1
-** non-RBU reader clients may see the original database.
-**
-** If this API is called during stage 2 of the update, output variable 
-** (*pnOne) is set to 10000 to indicate that stage 1 has finished and (*pnTwo)
-** to a value between 0 and 10000 to indicate the permyriadage progress of
-** stage 2. A value of 5000 indicates that stage 2 is half finished, 
-** 9000 indicates that it is 90% finished, and so on.
-**
-** If this API is called during stage 1 of the update, output variable 
-** (*pnTwo) is set to 0 to indicate that stage 2 has not yet started. The
-** value to which (*pnOne) is set depends on whether or not the RBU 
-** database contains an "rbu_count" table. The rbu_count table, if it 
-** exists, must contain the same columns as the following:
-**
-**   CREATE TABLE rbu_count(tbl TEXT PRIMARY KEY, cnt INTEGER) WITHOUT ROWID;
-**
-** There must be one row in the table for each source (data_xxx) table within
-** the RBU database. The 'tbl' column should contain the name of the source
-** table. The 'cnt' column should contain the number of rows within the
-** source table.
-**
-** If the rbu_count table is present and populated correctly and this
-** API is called during stage 1, the *pnOne output variable is set to the
-** permyriadage progress of the same stage. If the rbu_count table does
-** not exist, then (*pnOne) is set to -1 during stage 1. If the rbu_count
-** table exists but is not correctly populated, the value of the *pnOne
-** output variable during stage 1 is undefined.
-*/
-SQLITE_API void tdsqlite3rbu_bp_progress(tdsqlite3rbu *pRbu, int *pnOne, int*pnTwo);
-
-/*
-** Obtain an indication as to the current stage of an RBU update or vacuum.
-** This function always returns one of the SQLITE_RBU_STATE_XXX constants
-** defined in this file. Return values should be interpreted as follows:
-**
-** SQLITE_RBU_STATE_OAL:
-**   RBU is currently building a *-oal file. The next call to tdsqlite3rbu_step()
-**   may either add further data to the *-oal file, or compute data that will
-**   be added by a subsequent call.
-**
-** SQLITE_RBU_STATE_MOVE:
-**   RBU has finished building the *-oal file. The next call to tdsqlite3rbu_step()
-**   will move the *-oal file to the equivalent *-wal path. If the current
-**   operation is an RBU update, then the updated version of the database
-**   file will become visible to ordinary SQLite clients following the next
-**   call to tdsqlite3rbu_step().
-**
-** SQLITE_RBU_STATE_CHECKPOINT:
-**   RBU is currently performing an incremental checkpoint. The next call to
-**   tdsqlite3rbu_step() will copy a page of data from the *-wal file into
-**   the target database file.
-**
-** SQLITE_RBU_STATE_DONE:
-**   The RBU operation has finished. Any subsequent calls to tdsqlite3rbu_step()
-**   will immediately return SQLITE_DONE.
-**
-** SQLITE_RBU_STATE_ERROR:
-**   An error has occurred. Any subsequent calls to tdsqlite3rbu_step() will
-**   immediately return the SQLite error code associated with the error.
-*/
-#define SQLITE_RBU_STATE_OAL        1
-#define SQLITE_RBU_STATE_MOVE       2
-#define SQLITE_RBU_STATE_CHECKPOINT 3
-#define SQLITE_RBU_STATE_DONE       4
-#define SQLITE_RBU_STATE_ERROR      5
-
-SQLITE_API int tdsqlite3rbu_state(tdsqlite3rbu *pRbu);
-
-/*
-** Create an RBU VFS named zName that accesses the underlying file-system
-** via existing VFS zParent. Or, if the zParent parameter is passed NULL, 
-** then the new RBU VFS uses the default system VFS to access the file-system.
-** The new object is registered as a non-default VFS with SQLite before 
-** returning.
-**
-** Part of the RBU implementation uses a custom VFS object. Usually, this
-** object is created and deleted automatically by RBU. 
-**
-** The exception is for applications that also use zipvfs. In this case,
-** the custom VFS must be explicitly created by the user before the RBU
-** handle is opened. The RBU VFS should be installed so that the zipvfs
-** VFS uses the RBU VFS, which in turn uses any other VFS layers in use 
-** (for example multiplexor) to access the file-system. For example,
-** to assemble an RBU enabled VFS stack that uses both zipvfs and 
-** multiplexor (error checking omitted):
-**
-**     // Create a VFS named "multiplex" (not the default).
-**     tdsqlite3_multiplex_initialize(0, 0);
-**
-**     // Create an rbu VFS named "rbu" that uses multiplexor. If the
-**     // second argument were replaced with NULL, the "rbu" VFS would
-**     // access the file-system via the system default VFS, bypassing the
-**     // multiplexor.
-**     tdsqlite3rbu_create_vfs("rbu", "multiplex");
-**
-**     // Create a zipvfs VFS named "zipvfs" that uses rbu.
-**     zipvfs_create_vfs_v3("zipvfs", "rbu", 0, xCompressorAlgorithmDetector);
-**
-**     // Make zipvfs the default VFS.
-**     tdsqlite3_vfs_register(tdsqlite3_vfs_find("zipvfs"), 1);
-**
-** Because the default VFS created above includes a RBU functionality, it
-** may be used by RBU clients. Attempting to use RBU with a zipvfs VFS stack
-** that does not include the RBU layer results in an error.
-**
-** The overhead of adding the "rbu" VFS to the system is negligible for 
-** non-RBU users. There is no harm in an application accessing the 
-** file-system via "rbu" all the time, even if it only uses RBU functionality 
-** occasionally.
-*/
-SQLITE_API int tdsqlite3rbu_create_vfs(const char *zName, const char *zParent);
-
-/*
-** Deregister and destroy an RBU vfs created by an earlier call to
-** tdsqlite3rbu_create_vfs().
-**
-** VFS objects are not reference counted. If a VFS object is destroyed
-** before all database handles that use it have been closed, the results
-** are undefined.
-*/
-SQLITE_API void tdsqlite3rbu_destroy_vfs(const char *zName);
-
-#if 0
-}  /* end of the 'extern "C"' block */
-#endif
-
-#endif /* _SQLITE3RBU_H */
-
-/************** End of tdsqlite3rbu.h ******************************************/
-/************** Continuing where we left off in tdsqlite3rbu.c *****************/
-
-#if defined(_WIN32_WCE)
-/* #include "windows.h" */
-#endif
-
-/* Maximum number of prepared UPDATE statements held by this module */
-#define SQLITE_RBU_UPDATE_CACHESIZE 16
-
-/* Delta checksums disabled by default.  Compile with -DRBU_ENABLE_DELTA_CKSUM
-** to enable checksum verification.
-*/
-#ifndef RBU_ENABLE_DELTA_CKSUM
-# define RBU_ENABLE_DELTA_CKSUM 0
-#endif
-
-/*
-** Swap two objects of type TYPE.
-*/
-#if !defined(SQLITE_AMALGAMATION)
-# define SWAP(TYPE,A,B) {TYPE t=A; A=B; B=t;}
-#endif
-
-/*
-** The rbu_state table is used to save the state of a partially applied
-** update so that it can be resumed later. The table consists of integer
-** keys mapped to values as follows:
-**
-** RBU_STATE_STAGE:
-**   May be set to integer values 1, 2, 4 or 5. As follows:
-**       1: the *-rbu file is currently under construction.
-**       2: the *-rbu file has been constructed, but not yet moved 
-**          to the *-wal path.
-**       4: the checkpoint is underway.
-**       5: the rbu update has been checkpointed.
-**
-** RBU_STATE_TBL:
-**   Only valid if STAGE==1. The target database name of the table 
-**   currently being written.
-**
-** RBU_STATE_IDX:
-**   Only valid if STAGE==1. The target database name of the index 
-**   currently being written, or NULL if the main table is currently being
-**   updated.
-**
-** RBU_STATE_ROW:
-**   Only valid if STAGE==1. Number of rows already processed for the current
-**   table/index.
-**
-** RBU_STATE_PROGRESS:
-**   Trbul number of tdsqlite3rbu_step() calls made so far as part of this
-**   rbu update.
-**
-** RBU_STATE_CKPT:
-**   Valid if STAGE==4. The 64-bit checksum associated with the wal-index
-**   header created by recovering the *-wal file. This is used to detect
-**   cases when another client appends frames to the *-wal file in the
-**   middle of an incremental checkpoint (an incremental checkpoint cannot
-**   be continued if this happens).
-**
-** RBU_STATE_COOKIE:
-**   Valid if STAGE==1. The current change-counter cookie value in the 
-**   target db file.
-**
-** RBU_STATE_OALSZ:
-**   Valid if STAGE==1. The size in bytes of the *-oal file.
-**
-** RBU_STATE_DATATBL:
-**   Only valid if STAGE==1. The RBU database name of the table 
-**   currently being read.
-*/
-#define RBU_STATE_STAGE        1
-#define RBU_STATE_TBL          2
-#define RBU_STATE_IDX          3
-#define RBU_STATE_ROW          4
-#define RBU_STATE_PROGRESS     5
-#define RBU_STATE_CKPT         6
-#define RBU_STATE_COOKIE       7
-#define RBU_STATE_OALSZ        8
-#define RBU_STATE_PHASEONESTEP 9
-#define RBU_STATE_DATATBL     10
-
-#define RBU_STAGE_OAL         1
-#define RBU_STAGE_MOVE        2
-#define RBU_STAGE_CAPTURE     3
-#define RBU_STAGE_CKPT        4
-#define RBU_STAGE_DONE        5
-
-
-#define RBU_CREATE_STATE \
-  "CREATE TABLE IF NOT EXISTS %s.rbu_state(k INTEGER PRIMARY KEY, v)"
-
-typedef struct RbuFrame RbuFrame;
-typedef struct RbuObjIter RbuObjIter;
-typedef struct RbuState RbuState;
-typedef struct RbuSpan RbuSpan;
-typedef struct rbu_vfs rbu_vfs;
-typedef struct rbu_file rbu_file;
-typedef struct RbuUpdateStmt RbuUpdateStmt;
-
-#if !defined(SQLITE_AMALGAMATION)
-typedef unsigned int u32;
-typedef unsigned short u16;
-typedef unsigned char u8;
-typedef tdsqlite3_int64 i64;
-#endif
-
-/*
-** These values must match the values defined in wal.c for the equivalent
-** locks. These are not magic numbers as they are part of the SQLite file
-** format.
-*/
-#define WAL_LOCK_WRITE  0
-#define WAL_LOCK_CKPT   1
-#define WAL_LOCK_READ0  3
-
-#define SQLITE_FCNTL_RBUCNT    5149216
-
-/*
-** A structure to store values read from the rbu_state table in memory.
-*/
-struct RbuState {
-  int eStage;
-  char *zTbl;
-  char *zDataTbl;
-  char *zIdx;
-  i64 iWalCksum;
-  int nRow;
-  i64 nProgress;
-  u32 iCookie;
-  i64 iOalSz;
-  i64 nPhaseOneStep;
-};
-
-struct RbuUpdateStmt {
-  char *zMask;                    /* Copy of update mask used with pUpdate */
-  tdsqlite3_stmt *pUpdate;          /* Last update statement (or NULL) */
-  RbuUpdateStmt *pNext;
-};
-
-struct RbuSpan {
-  const char *zSpan;
-  int nSpan;
-};
-
-/*
-** An iterator of this type is used to iterate through all objects in
-** the target database that require updating. For each such table, the
-** iterator visits, in order:
-**
-**     * the table itself, 
-**     * each index of the table (zero or more points to visit), and
-**     * a special "cleanup table" state.
-**
-** abIndexed:
-**   If the table has no indexes on it, abIndexed is set to NULL. Otherwise,
-**   it points to an array of flags nTblCol elements in size. The flag is
-**   set for each column that is either a part of the PK or a part of an
-**   index. Or clear otherwise.
-**
-**   If there are one or more partial indexes on the table, all fields of
-**   this array set set to 1. This is because in that case, the module has
-**   no way to tell which fields will be required to add and remove entries
-**   from the partial indexes.
-**   
-*/
-struct RbuObjIter {
-  tdsqlite3_stmt *pTblIter;         /* Iterate through tables */
-  tdsqlite3_stmt *pIdxIter;         /* Index iterator */
-  int nTblCol;                    /* Size of azTblCol[] array */
-  char **azTblCol;                /* Array of unquoted target column names */
-  char **azTblType;               /* Array of target column types */
-  int *aiSrcOrder;                /* src table col -> target table col */
-  u8 *abTblPk;                    /* Array of flags, set on target PK columns */
-  u8 *abNotNull;                  /* Array of flags, set on NOT NULL columns */
-  u8 *abIndexed;                  /* Array of flags, set on indexed & PK cols */
-  int eType;                      /* Table type - an RBU_PK_XXX value */
-
-  /* Output variables. zTbl==0 implies EOF. */
-  int bCleanup;                   /* True in "cleanup" state */
-  const char *zTbl;               /* Name of target db table */
-  const char *zDataTbl;           /* Name of rbu db table (or null) */
-  const char *zIdx;               /* Name of target db index (or null) */
-  int iTnum;                      /* Root page of current object */
-  int iPkTnum;                    /* If eType==EXTERNAL, root of PK index */
-  int bUnique;                    /* Current index is unique */
-  int nIndex;                     /* Number of aux. indexes on table zTbl */
-
-  /* Statements created by rbuObjIterPrepareAll() */
-  int nCol;                       /* Number of columns in current object */
-  tdsqlite3_stmt *pSelect;          /* Source data */
-  tdsqlite3_stmt *pInsert;          /* Statement for INSERT operations */
-  tdsqlite3_stmt *pDelete;          /* Statement for DELETE ops */
-  tdsqlite3_stmt *pTmpInsert;       /* Insert into rbu_tmp_$zDataTbl */
-  int nIdxCol;
-  RbuSpan *aIdxCol;
-  char *zIdxSql;
-
-  /* Last UPDATE used (for PK b-tree updates only), or NULL. */
-  RbuUpdateStmt *pRbuUpdate;
-};
-
-/*
-** Values for RbuObjIter.eType
-**
-**     0: Table does not exist (error)
-**     1: Table has an implicit rowid.
-**     2: Table has an explicit IPK column.
-**     3: Table has an external PK index.
-**     4: Table is WITHOUT ROWID.
-**     5: Table is a virtual table.
-*/
-#define RBU_PK_NOTABLE        0
-#define RBU_PK_NONE           1
-#define RBU_PK_IPK            2
-#define RBU_PK_EXTERNAL       3
-#define RBU_PK_WITHOUT_ROWID  4
-#define RBU_PK_VTAB           5
-
-
-/*
-** Within the RBU_STAGE_OAL stage, each call to tdsqlite3rbu_step() performs
-** one of the following operations.
-*/
-#define RBU_INSERT     1          /* Insert on a main table b-tree */
-#define RBU_DELETE     2          /* Delete a row from a main table b-tree */
-#define RBU_REPLACE    3          /* Delete and then insert a row */
-#define RBU_IDX_DELETE 4          /* Delete a row from an aux. index b-tree */
-#define RBU_IDX_INSERT 5          /* Insert on an aux. index b-tree */
-
-#define RBU_UPDATE     6          /* Update a row in a main table b-tree */
-
-/*
-** A single step of an incremental checkpoint - frame iWalFrame of the wal
-** file should be copied to page iDbPage of the database file.
-*/
-struct RbuFrame {
-  u32 iDbPage;
-  u32 iWalFrame;
-};
-
-/*
-** RBU handle.
-**
-** nPhaseOneStep:
-**   If the RBU database contains an rbu_count table, this value is set to
-**   a running estimate of the number of b-tree operations required to 
-**   finish populating the *-oal file. This allows the tdsqlite3_bp_progress()
-**   API to calculate the permyriadage progress of populating the *-oal file
-**   using the formula:
-**
-**     permyriadage = (10000 * nProgress) / nPhaseOneStep
-**
-**   nPhaseOneStep is initialized to the sum of:
-**
-**     nRow * (nIndex + 1)
-**
-**   for all source tables in the RBU database, where nRow is the number
-**   of rows in the source table and nIndex the number of indexes on the
-**   corresponding target database table.
-**
-**   This estimate is accurate if the RBU update consists entirely of
-**   INSERT operations. However, it is inaccurate if:
-**
-**     * the RBU update contains any UPDATE operations. If the PK specified
-**       for an UPDATE operation does not exist in the target table, then
-**       no b-tree operations are required on index b-trees. Or if the 
-**       specified PK does exist, then (nIndex*2) such operations are
-**       required (one delete and one insert on each index b-tree).
-**
-**     * the RBU update contains any DELETE operations for which the specified
-**       PK does not exist. In this case no operations are required on index
-**       b-trees.
-**
-**     * the RBU update contains REPLACE operations. These are similar to
-**       UPDATE operations.
-**
-**   nPhaseOneStep is updated to account for the conditions above during the
-**   first pass of each source table. The updated nPhaseOneStep value is
-**   stored in the rbu_state table if the RBU update is suspended.
-*/
-struct tdsqlite3rbu {
-  int eStage;                     /* Value of RBU_STATE_STAGE field */
-  tdsqlite3 *dbMain;                /* target database handle */
-  tdsqlite3 *dbRbu;                 /* rbu database handle */
-  char *zTarget;                  /* Path to target db */
-  char *zRbu;                     /* Path to rbu db */
-  char *zState;                   /* Path to state db (or NULL if zRbu) */
-  char zStateDb[5];               /* Db name for state ("stat" or "main") */
-  int rc;                         /* Value returned by last rbu_step() call */
-  char *zErrmsg;                  /* Error message if rc!=SQLITE_OK */
-  int nStep;                      /* Rows processed for current object */
-  int nProgress;                  /* Rows processed for all objects */
-  RbuObjIter objiter;             /* Iterator for skipping through tbl/idx */
-  const char *zVfsName;           /* Name of automatically created rbu vfs */
-  rbu_file *pTargetFd;            /* File handle open on target db */
-  int nPagePerSector;             /* Pages per sector for pTargetFd */
-  i64 iOalSz;
-  i64 nPhaseOneStep;
-
-  /* The following state variables are used as part of the incremental
-  ** checkpoint stage (eStage==RBU_STAGE_CKPT). See comments surrounding
-  ** function rbuSetupCheckpoint() for details.  */
-  u32 iMaxFrame;                  /* Largest iWalFrame value in aFrame[] */
-  u32 mLock;
-  int nFrame;                     /* Entries in aFrame[] array */
-  int nFrameAlloc;                /* Allocated size of aFrame[] array */
-  RbuFrame *aFrame;
-  int pgsz;
-  u8 *aBuf;
-  i64 iWalCksum;
-  i64 szTemp;                     /* Current size of all temp files in use */
-  i64 szTempLimit;                /* Total size limit for temp files */
-
-  /* Used in RBU vacuum mode only */
-  int nRbu;                       /* Number of RBU VFS in the stack */
-  rbu_file *pRbuFd;               /* Fd for main db of dbRbu */
-};
-
-/*
-** An rbu VFS is implemented using an instance of this structure.
-**
-** Variable pRbu is only non-NULL for automatically created RBU VFS objects.
-** It is NULL for RBU VFS objects created explicitly using
-** tdsqlite3rbu_create_vfs(). It is used to track the total amount of temp
-** space used by the RBU handle.
-*/
-struct rbu_vfs {
-  tdsqlite3_vfs base;               /* rbu VFS shim methods */
-  tdsqlite3_vfs *pRealVfs;          /* Underlying VFS */
-  tdsqlite3_mutex *mutex;           /* Mutex to protect pMain */
-  tdsqlite3rbu *pRbu;               /* Owner RBU object */
-  rbu_file *pMain;                /* List of main db files */
-  rbu_file *pMainRbu;             /* List of main db files with pRbu!=0 */
-};
-
-/*
-** Each file opened by an rbu VFS is represented by an instance of
-** the following structure.
-**
-** If this is a temporary file (pRbu!=0 && flags&DELETE_ON_CLOSE), variable
-** "sz" is set to the current size of the database file.
-*/
-struct rbu_file {
-  tdsqlite3_file base;              /* tdsqlite3_file methods */
-  tdsqlite3_file *pReal;            /* Underlying file handle */
-  rbu_vfs *pRbuVfs;               /* Pointer to the rbu_vfs object */
-  tdsqlite3rbu *pRbu;               /* Pointer to rbu object (rbu target only) */
-  i64 sz;                         /* Size of file in bytes (temp only) */
-
-  int openFlags;                  /* Flags this file was opened with */
-  u32 iCookie;                    /* Cookie value for main db files */
-  u8 iWriteVer;                   /* "write-version" value for main db files */
-  u8 bNolock;                     /* True to fail EXCLUSIVE locks */
-
-  int nShm;                       /* Number of entries in apShm[] array */
-  char **apShm;                   /* Array of mmap'd *-shm regions */
-  char *zDel;                     /* Delete this when closing file */
-
-  const char *zWal;               /* Wal filename for this main db file */
-  rbu_file *pWalFd;               /* Wal file descriptor for this main db */
-  rbu_file *pMainNext;            /* Next MAIN_DB file */
-  rbu_file *pMainRbuNext;         /* Next MAIN_DB file with pRbu!=0 */
-};
-
-/*
-** True for an RBU vacuum handle, or false otherwise.
-*/
-#define rbuIsVacuum(p) ((p)->zTarget==0)
-
-
-/*************************************************************************
-** The following three functions, found below:
-**
-**   rbuDeltaGetInt()
-**   rbuDeltaChecksum()
-**   rbuDeltaApply()
-**
-** are lifted from the fossil source code (http://fossil-scm.org). They
-** are used to implement the scalar SQL function rbu_fossil_delta().
-*/
-
-/*
-** Read bytes from *pz and convert them into a positive integer.  When
-** finished, leave *pz pointing to the first character past the end of
-** the integer.  The *pLen parameter holds the length of the string
-** in *pz and is decremented once for each character in the integer.
-*/
-static unsigned int rbuDeltaGetInt(const char **pz, int *pLen){
-  static const signed char zValue[] = {
-    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1,   -1, -1, -1, -1, -1, -1, -1, -1,
-     0,  1,  2,  3,  4,  5,  6,  7,    8,  9, -1, -1, -1, -1, -1, -1,
-    -1, 10, 11, 12, 13, 14, 15, 16,   17, 18, 19, 20, 21, 22, 23, 24,
-    25, 26, 27, 28, 29, 30, 31, 32,   33, 34, 35, -1, -1, -1, -1, 36,
-    -1, 37, 38, 39, 40, 41, 42, 43,   44, 45, 46, 47, 48, 49, 50, 51,
-    52, 53, 54, 55, 56, 57, 58, 59,   60, 61, 62, -1, -1, -1, 63, -1,
-  };
-  unsigned int v = 0;
-  int c;
-  unsigned char *z = (unsigned char*)*pz;
-  unsigned char *zStart = z;
-  while( (c = zValue[0x7f&*(z++)])>=0 ){
-     v = (v<<6) + c;
-  }
-  z--;
-  *pLen -= z - zStart;
-  *pz = (char*)z;
-  return v;
-}
-
-#if RBU_ENABLE_DELTA_CKSUM
-/*
-** Compute a 32-bit checksum on the N-byte buffer.  Return the result.
-*/
-static unsigned int rbuDeltaChecksum(const char *zIn, size_t N){
-  const unsigned char *z = (const unsigned char *)zIn;
-  unsigned sum0 = 0;
-  unsigned sum1 = 0;
-  unsigned sum2 = 0;
-  unsigned sum3 = 0;
-  while(N >= 16){
-    sum0 += ((unsigned)z[0] + z[4] + z[8] + z[12]);
-    sum1 += ((unsigned)z[1] + z[5] + z[9] + z[13]);
-    sum2 += ((unsigned)z[2] + z[6] + z[10]+ z[14]);
-    sum3 += ((unsigned)z[3] + z[7] + z[11]+ z[15]);
-    z += 16;
-    N -= 16;
-  }
-  while(N >= 4){
-    sum0 += z[0];
-    sum1 += z[1];
-    sum2 += z[2];
-    sum3 += z[3];
-    z += 4;
-    N -= 4;
-  }
-  sum3 += (sum2 << 8) + (sum1 << 16) + (sum0 << 24);
-  switch(N){
-    case 3:   sum3 += (z[2] << 8);
-    case 2:   sum3 += (z[1] << 16);
-    case 1:   sum3 += (z[0] << 24);
-    default:  ;
-  }
-  return sum3;
-}
-#endif
-
-/*
-** Apply a delta.
-**
-** The output buffer should be big enough to hold the whole output
-** file and a NUL terminator at the end.  The delta_output_size()
-** routine will determine this size for you.
-**
-** The delta string should be null-terminated.  But the delta string
-** may contain embedded NUL characters (if the input and output are
-** binary files) so we also have to pass in the length of the delta in
-** the lenDelta parameter.
-**
-** This function returns the size of the output file in bytes (excluding
-** the final NUL terminator character).  Except, if the delta string is
-** malformed or intended for use with a source file other than zSrc,
-** then this routine returns -1.
-**
-** Refer to the delta_create() documentation above for a description
-** of the delta file format.
-*/
-static int rbuDeltaApply(
-  const char *zSrc,      /* The source or pattern file */
-  int lenSrc,            /* Length of the source file */
-  const char *zDelta,    /* Delta to apply to the pattern */
-  int lenDelta,          /* Length of the delta */
-  char *zOut             /* Write the output into this preallocated buffer */
-){
-  unsigned int limit;
-  unsigned int total = 0;
-#if RBU_ENABLE_DELTA_CKSUM
-  char *zOrigOut = zOut;
-#endif
-
-  limit = rbuDeltaGetInt(&zDelta, &lenDelta);
-  if( *zDelta!='\n' ){
-    /* ERROR: size integer not terminated by "\n" */
-    return -1;
-  }
-  zDelta++; lenDelta--;
-  while( *zDelta && lenDelta>0 ){
-    unsigned int cnt, ofst;
-    cnt = rbuDeltaGetInt(&zDelta, &lenDelta);
-    switch( zDelta[0] ){
-      case '@': {
-        zDelta++; lenDelta--;
-        ofst = rbuDeltaGetInt(&zDelta, &lenDelta);
-        if( lenDelta>0 && zDelta[0]!=',' ){
-          /* ERROR: copy command not terminated by ',' */
-          return -1;
-        }
-        zDelta++; lenDelta--;
-        total += cnt;
-        if( total>limit ){
-          /* ERROR: copy exceeds output file size */
-          return -1;
-        }
-        if( (int)(ofst+cnt) > lenSrc ){
-          /* ERROR: copy extends past end of input */
-          return -1;
-        }
-        memcpy(zOut, &zSrc[ofst], cnt);
-        zOut += cnt;
-        break;
-      }
-      case ':': {
-        zDelta++; lenDelta--;
-        total += cnt;
-        if( total>limit ){
-          /* ERROR:  insert command gives an output larger than predicted */
-          return -1;
-        }
-        if( (int)cnt>lenDelta ){
-          /* ERROR: insert count exceeds size of delta */
-          return -1;
-        }
-        memcpy(zOut, zDelta, cnt);
-        zOut += cnt;
-        zDelta += cnt;
-        lenDelta -= cnt;
-        break;
-      }
-      case ';': {
-        zDelta++; lenDelta--;
-        zOut[0] = 0;
-#if RBU_ENABLE_DELTA_CKSUM
-        if( cnt!=rbuDeltaChecksum(zOrigOut, total) ){
-          /* ERROR:  bad checksum */
-          return -1;
-        }
-#endif
-        if( total!=limit ){
-          /* ERROR: generated size does not match predicted size */
-          return -1;
-        }
-        return total;
-      }
-      default: {
-        /* ERROR: unknown delta operator */
-        return -1;
-      }
-    }
-  }
-  /* ERROR: unterminated delta */
-  return -1;
-}
-
-static int rbuDeltaOutputSize(const char *zDelta, int lenDelta){
-  int size;
-  size = rbuDeltaGetInt(&zDelta, &lenDelta);
-  if( *zDelta!='\n' ){
-    /* ERROR: size integer not terminated by "\n" */
-    return -1;
-  }
-  return size;
-}
-
-/*
-** End of code taken from fossil.
-*************************************************************************/
-
-/*
-** Implementation of SQL scalar function rbu_fossil_delta().
-**
-** This function applies a fossil delta patch to a blob. Exactly two
-** arguments must be passed to this function. The first is the blob to
-** patch and the second the patch to apply. If no error occurs, this
-** function returns the patched blob.
-*/
-static void rbuFossilDeltaFunc(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  const char *aDelta;
-  int nDelta;
-  const char *aOrig;
-  int nOrig;
-
-  int nOut;
-  int nOut2;
-  char *aOut;
-
-  assert( argc==2 );
-
-  nOrig = tdsqlite3_value_bytes(argv[0]);
-  aOrig = (const char*)tdsqlite3_value_blob(argv[0]);
-  nDelta = tdsqlite3_value_bytes(argv[1]);
-  aDelta = (const char*)tdsqlite3_value_blob(argv[1]);
-
-  /* Figure out the size of the output */
-  nOut = rbuDeltaOutputSize(aDelta, nDelta);
-  if( nOut<0 ){
-    tdsqlite3_result_error(context, "corrupt fossil delta", -1);
-    return;
-  }
-
-  aOut = tdsqlite3_malloc(nOut+1);
-  if( aOut==0 ){
-    tdsqlite3_result_error_nomem(context);
-  }else{
-    nOut2 = rbuDeltaApply(aOrig, nOrig, aDelta, nDelta, aOut);
-    if( nOut2!=nOut ){
-      tdsqlite3_free(aOut);
-      tdsqlite3_result_error(context, "corrupt fossil delta", -1);
-    }else{
-      tdsqlite3_result_blob(context, aOut, nOut, tdsqlite3_free);
-    }
-  }
-}
-
-
-/*
-** Prepare the SQL statement in buffer zSql against database handle db.
-** If successful, set *ppStmt to point to the new statement and return
-** SQLITE_OK. 
-**
-** Otherwise, if an error does occur, set *ppStmt to NULL and return
-** an SQLite error code. Additionally, set output variable *pzErrmsg to
-** point to a buffer containing an error message. It is the responsibility
-** of the caller to (eventually) free this buffer using tdsqlite3_free().
-*/
-static int prepareAndCollectError(
-  tdsqlite3 *db, 
-  tdsqlite3_stmt **ppStmt,
-  char **pzErrmsg,
-  const char *zSql
-){
-  int rc = tdsqlite3_prepare_v2(db, zSql, -1, ppStmt, 0);
-  if( rc!=SQLITE_OK ){
-    *pzErrmsg = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-    *ppStmt = 0;
-  }
-  return rc;
-}
-
-/*
-** Reset the SQL statement passed as the first argument. Return a copy
-** of the value returned by tdsqlite3_reset().
-**
-** If an error has occurred, then set *pzErrmsg to point to a buffer
-** containing an error message. It is the responsibility of the caller
-** to eventually free this buffer using tdsqlite3_free().
-*/
-static int resetAndCollectError(tdsqlite3_stmt *pStmt, char **pzErrmsg){
-  int rc = tdsqlite3_reset(pStmt);
-  if( rc!=SQLITE_OK ){
-    *pzErrmsg = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(tdsqlite3_db_handle(pStmt)));
-  }
-  return rc;
-}
-
-/*
-** Unless it is NULL, argument zSql points to a buffer allocated using
-** tdsqlite3_malloc containing an SQL statement. This function prepares the SQL
-** statement against database db and frees the buffer. If statement 
-** compilation is successful, *ppStmt is set to point to the new statement 
-** handle and SQLITE_OK is returned. 
-**
-** Otherwise, if an error occurs, *ppStmt is set to NULL and an error code
-** returned. In this case, *pzErrmsg may also be set to point to an error
-** message. It is the responsibility of the caller to free this error message
-** buffer using tdsqlite3_free().
-**
-** If argument zSql is NULL, this function assumes that an OOM has occurred.
-** In this case SQLITE_NOMEM is returned and *ppStmt set to NULL.
-*/
-static int prepareFreeAndCollectError(
-  tdsqlite3 *db, 
-  tdsqlite3_stmt **ppStmt,
-  char **pzErrmsg,
-  char *zSql
-){
-  int rc;
-  assert( *pzErrmsg==0 );
-  if( zSql==0 ){
-    rc = SQLITE_NOMEM;
-    *ppStmt = 0;
-  }else{
-    rc = prepareAndCollectError(db, ppStmt, pzErrmsg, zSql);
-    tdsqlite3_free(zSql);
-  }
-  return rc;
-}
-
-/*
-** Free the RbuObjIter.azTblCol[] and RbuObjIter.abTblPk[] arrays allocated
-** by an earlier call to rbuObjIterCacheTableInfo().
-*/
-static void rbuObjIterFreeCols(RbuObjIter *pIter){
-  int i;
-  for(i=0; i<pIter->nTblCol; i++){
-    tdsqlite3_free(pIter->azTblCol[i]);
-    tdsqlite3_free(pIter->azTblType[i]);
-  }
-  tdsqlite3_free(pIter->azTblCol);
-  pIter->azTblCol = 0;
-  pIter->azTblType = 0;
-  pIter->aiSrcOrder = 0;
-  pIter->abTblPk = 0;
-  pIter->abNotNull = 0;
-  pIter->nTblCol = 0;
-  pIter->eType = 0;               /* Invalid value */
-}
-
-/*
-** Finalize all statements and free all allocations that are specific to
-** the current object (table/index pair).
-*/
-static void rbuObjIterClearStatements(RbuObjIter *pIter){
-  RbuUpdateStmt *pUp;
-
-  tdsqlite3_finalize(pIter->pSelect);
-  tdsqlite3_finalize(pIter->pInsert);
-  tdsqlite3_finalize(pIter->pDelete);
-  tdsqlite3_finalize(pIter->pTmpInsert);
-  pUp = pIter->pRbuUpdate;
-  while( pUp ){
-    RbuUpdateStmt *pTmp = pUp->pNext;
-    tdsqlite3_finalize(pUp->pUpdate);
-    tdsqlite3_free(pUp);
-    pUp = pTmp;
-  }
-  tdsqlite3_free(pIter->aIdxCol);
-  tdsqlite3_free(pIter->zIdxSql);
-  
-  pIter->pSelect = 0;
-  pIter->pInsert = 0;
-  pIter->pDelete = 0;
-  pIter->pRbuUpdate = 0;
-  pIter->pTmpInsert = 0;
-  pIter->nCol = 0;
-  pIter->nIdxCol = 0;
-  pIter->aIdxCol = 0;
-  pIter->zIdxSql = 0;
-}
-
-/*
-** Clean up any resources allocated as part of the iterator object passed
-** as the only argument.
-*/
-static void rbuObjIterFinalize(RbuObjIter *pIter){
-  rbuObjIterClearStatements(pIter);
-  tdsqlite3_finalize(pIter->pTblIter);
-  tdsqlite3_finalize(pIter->pIdxIter);
-  rbuObjIterFreeCols(pIter);
-  memset(pIter, 0, sizeof(RbuObjIter));
-}
-
-/*
-** Advance the iterator to the next position.
-**
-** If no error occurs, SQLITE_OK is returned and the iterator is left 
-** pointing to the next entry. Otherwise, an error code and message is 
-** left in the RBU handle passed as the first argument. A copy of the 
-** error code is returned.
-*/
-static int rbuObjIterNext(tdsqlite3rbu *p, RbuObjIter *pIter){
-  int rc = p->rc;
-  if( rc==SQLITE_OK ){
-
-    /* Free any SQLite statements used while processing the previous object */ 
-    rbuObjIterClearStatements(pIter);
-    if( pIter->zIdx==0 ){
-      rc = tdsqlite3_exec(p->dbMain,
-          "DROP TRIGGER IF EXISTS temp.rbu_insert_tr;"
-          "DROP TRIGGER IF EXISTS temp.rbu_update1_tr;"
-          "DROP TRIGGER IF EXISTS temp.rbu_update2_tr;"
-          "DROP TRIGGER IF EXISTS temp.rbu_delete_tr;"
-          , 0, 0, &p->zErrmsg
-      );
-    }
-
-    if( rc==SQLITE_OK ){
-      if( pIter->bCleanup ){
-        rbuObjIterFreeCols(pIter);
-        pIter->bCleanup = 0;
-        rc = tdsqlite3_step(pIter->pTblIter);
-        if( rc!=SQLITE_ROW ){
-          rc = resetAndCollectError(pIter->pTblIter, &p->zErrmsg);
-          pIter->zTbl = 0;
-        }else{
-          pIter->zTbl = (const char*)tdsqlite3_column_text(pIter->pTblIter, 0);
-          pIter->zDataTbl = (const char*)tdsqlite3_column_text(pIter->pTblIter,1);
-          rc = (pIter->zDataTbl && pIter->zTbl) ? SQLITE_OK : SQLITE_NOMEM;
-        }
-      }else{
-        if( pIter->zIdx==0 ){
-          tdsqlite3_stmt *pIdx = pIter->pIdxIter;
-          rc = tdsqlite3_bind_text(pIdx, 1, pIter->zTbl, -1, SQLITE_STATIC);
-        }
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3_step(pIter->pIdxIter);
-          if( rc!=SQLITE_ROW ){
-            rc = resetAndCollectError(pIter->pIdxIter, &p->zErrmsg);
-            pIter->bCleanup = 1;
-            pIter->zIdx = 0;
-          }else{
-            pIter->zIdx = (const char*)tdsqlite3_column_text(pIter->pIdxIter, 0);
-            pIter->iTnum = tdsqlite3_column_int(pIter->pIdxIter, 1);
-            pIter->bUnique = tdsqlite3_column_int(pIter->pIdxIter, 2);
-            rc = pIter->zIdx ? SQLITE_OK : SQLITE_NOMEM;
-          }
-        }
-      }
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    rbuObjIterFinalize(pIter);
-    p->rc = rc;
-  }
-  return rc;
-}
-
-
-/*
-** The implementation of the rbu_target_name() SQL function. This function
-** accepts one or two arguments. The first argument is the name of a table -
-** the name of a table in the RBU database.  The second, if it is present, is 1
-** for a view or 0 for a table. 
-**
-** For a non-vacuum RBU handle, if the table name matches the pattern:
-**
-**     data[0-9]_<name>
-**
-** where <name> is any sequence of 1 or more characters, <name> is returned.
-** Otherwise, if the only argument does not match the above pattern, an SQL
-** NULL is returned.
-**
-**     "data_t1"     -> "t1"
-**     "data0123_t2" -> "t2"
-**     "dataAB_t3"   -> NULL
-**
-** For an rbu vacuum handle, a copy of the first argument is returned if
-** the second argument is either missing or 0 (not a view).
-*/
-static void rbuTargetNameFunc(
-  tdsqlite3_context *pCtx,
-  int argc,
-  tdsqlite3_value **argv
-){
-  tdsqlite3rbu *p = tdsqlite3_user_data(pCtx);
-  const char *zIn;
-  assert( argc==1 || argc==2 );
-
-  zIn = (const char*)tdsqlite3_value_text(argv[0]);
-  if( zIn ){
-    if( rbuIsVacuum(p) ){
-      assert( argc==2 || argc==1 );
-      if( argc==1 || 0==tdsqlite3_value_int(argv[1]) ){
-        tdsqlite3_result_text(pCtx, zIn, -1, SQLITE_STATIC);
-      }
-    }else{
-      if( strlen(zIn)>4 && memcmp("data", zIn, 4)==0 ){
-        int i;
-        for(i=4; zIn[i]>='0' && zIn[i]<='9'; i++);
-        if( zIn[i]=='_' && zIn[i+1] ){
-          tdsqlite3_result_text(pCtx, &zIn[i+1], -1, SQLITE_STATIC);
-        }
-      }
-    }
-  }
-}
-
-/*
-** Initialize the iterator structure passed as the second argument.
-**
-** If no error occurs, SQLITE_OK is returned and the iterator is left 
-** pointing to the first entry. Otherwise, an error code and message is 
-** left in the RBU handle passed as the first argument. A copy of the 
-** error code is returned.
-*/
-static int rbuObjIterFirst(tdsqlite3rbu *p, RbuObjIter *pIter){
-  int rc;
-  memset(pIter, 0, sizeof(RbuObjIter));
-
-  rc = prepareFreeAndCollectError(p->dbRbu, &pIter->pTblIter, &p->zErrmsg, 
-    tdsqlite3_mprintf(
-      "SELECT rbu_target_name(name, type='view') AS target, name "
-      "FROM sqlite_master "
-      "WHERE type IN ('table', 'view') AND target IS NOT NULL "
-      " %s "
-      "ORDER BY name"
-  , rbuIsVacuum(p) ? "AND rootpage!=0 AND rootpage IS NOT NULL" : ""));
-
-  if( rc==SQLITE_OK ){
-    rc = prepareAndCollectError(p->dbMain, &pIter->pIdxIter, &p->zErrmsg,
-        "SELECT name, rootpage, sql IS NULL OR substr(8, 6)=='UNIQUE' "
-        "  FROM main.sqlite_master "
-        "  WHERE type='index' AND tbl_name = ?"
-    );
-  }
-
-  pIter->bCleanup = 1;
-  p->rc = rc;
-  return rbuObjIterNext(p, pIter);
-}
-
-/*
-** This is a wrapper around "tdsqlite3_mprintf(zFmt, ...)". If an OOM occurs,
-** an error code is stored in the RBU handle passed as the first argument.
-**
-** If an error has already occurred (p->rc is already set to something other
-** than SQLITE_OK), then this function returns NULL without modifying the
-** stored error code. In this case it still calls tdsqlite3_free() on any 
-** printf() parameters associated with %z conversions.
-*/
-static char *rbuMPrintf(tdsqlite3rbu *p, const char *zFmt, ...){
-  char *zSql = 0;
-  va_list ap;
-  va_start(ap, zFmt);
-  zSql = tdsqlite3_vmprintf(zFmt, ap);
-  if( p->rc==SQLITE_OK ){
-    if( zSql==0 ) p->rc = SQLITE_NOMEM;
-  }else{
-    tdsqlite3_free(zSql);
-    zSql = 0;
-  }
-  va_end(ap);
-  return zSql;
-}
-
-/*
-** Argument zFmt is a tdsqlite3_mprintf() style format string. The trailing
-** arguments are the usual subsitution values. This function performs
-** the printf() style substitutions and executes the result as an SQL
-** statement on the RBU handles database.
-**
-** If an error occurs, an error code and error message is stored in the
-** RBU handle. If an error has already occurred when this function is
-** called, it is a no-op.
-*/
-static int rbuMPrintfExec(tdsqlite3rbu *p, tdsqlite3 *db, const char *zFmt, ...){
-  va_list ap;
-  char *zSql;
-  va_start(ap, zFmt);
-  zSql = tdsqlite3_vmprintf(zFmt, ap);
-  if( p->rc==SQLITE_OK ){
-    if( zSql==0 ){
-      p->rc = SQLITE_NOMEM;
-    }else{
-      p->rc = tdsqlite3_exec(db, zSql, 0, 0, &p->zErrmsg);
-    }
-  }
-  tdsqlite3_free(zSql);
-  va_end(ap);
-  return p->rc;
-}
-
-/*
-** Attempt to allocate and return a pointer to a zeroed block of nByte 
-** bytes. 
-**
-** If an error (i.e. an OOM condition) occurs, return NULL and leave an 
-** error code in the rbu handle passed as the first argument. Or, if an 
-** error has already occurred when this function is called, return NULL 
-** immediately without attempting the allocation or modifying the stored
-** error code.
-*/
-static void *rbuMalloc(tdsqlite3rbu *p, tdsqlite3_int64 nByte){
-  void *pRet = 0;
-  if( p->rc==SQLITE_OK ){
-    assert( nByte>0 );
-    pRet = tdsqlite3_malloc64(nByte);
-    if( pRet==0 ){
-      p->rc = SQLITE_NOMEM;
-    }else{
-      memset(pRet, 0, nByte);
-    }
-  }
-  return pRet;
-}
-
-
-/*
-** Allocate and zero the pIter->azTblCol[] and abTblPk[] arrays so that
-** there is room for at least nCol elements. If an OOM occurs, store an
-** error code in the RBU handle passed as the first argument.
-*/
-static void rbuAllocateIterArrays(tdsqlite3rbu *p, RbuObjIter *pIter, int nCol){
-  tdsqlite3_int64 nByte = (2*sizeof(char*) + sizeof(int) + 3*sizeof(u8)) * nCol;
-  char **azNew;
-
-  azNew = (char**)rbuMalloc(p, nByte);
-  if( azNew ){
-    pIter->azTblCol = azNew;
-    pIter->azTblType = &azNew[nCol];
-    pIter->aiSrcOrder = (int*)&pIter->azTblType[nCol];
-    pIter->abTblPk = (u8*)&pIter->aiSrcOrder[nCol];
-    pIter->abNotNull = (u8*)&pIter->abTblPk[nCol];
-    pIter->abIndexed = (u8*)&pIter->abNotNull[nCol];
-  }
-}
-
-/*
-** The first argument must be a nul-terminated string. This function
-** returns a copy of the string in memory obtained from tdsqlite3_malloc().
-** It is the responsibility of the caller to eventually free this memory
-** using tdsqlite3_free().
-**
-** If an OOM condition is encountered when attempting to allocate memory,
-** output variable (*pRc) is set to SQLITE_NOMEM before returning. Otherwise,
-** if the allocation succeeds, (*pRc) is left unchanged.
-*/
-static char *rbuStrndup(const char *zStr, int *pRc){
-  char *zRet = 0;
-
-  if( *pRc==SQLITE_OK ){
-    if( zStr ){
-      size_t nCopy = strlen(zStr) + 1;
-      zRet = (char*)tdsqlite3_malloc64(nCopy);
-      if( zRet ){
-        memcpy(zRet, zStr, nCopy);
-      }else{
-        *pRc = SQLITE_NOMEM;
-      }
-    }
-  }
-
-  return zRet;
-}
-
-/*
-** Finalize the statement passed as the second argument.
-**
-** If the tdsqlite3_finalize() call indicates that an error occurs, and the
-** rbu handle error code is not already set, set the error code and error
-** message accordingly.
-*/
-static void rbuFinalize(tdsqlite3rbu *p, tdsqlite3_stmt *pStmt){
-  tdsqlite3 *db = tdsqlite3_db_handle(pStmt);
-  int rc = tdsqlite3_finalize(pStmt);
-  if( p->rc==SQLITE_OK && rc!=SQLITE_OK ){
-    p->rc = rc;
-    p->zErrmsg = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-  }
-}
-
-/* Determine the type of a table.
-**
-**   peType is of type (int*), a pointer to an output parameter of type
-**   (int). This call sets the output parameter as follows, depending
-**   on the type of the table specified by parameters dbName and zTbl.
-**
-**     RBU_PK_NOTABLE:       No such table.
-**     RBU_PK_NONE:          Table has an implicit rowid.
-**     RBU_PK_IPK:           Table has an explicit IPK column.
-**     RBU_PK_EXTERNAL:      Table has an external PK index.
-**     RBU_PK_WITHOUT_ROWID: Table is WITHOUT ROWID.
-**     RBU_PK_VTAB:          Table is a virtual table.
-**
-**   Argument *piPk is also of type (int*), and also points to an output
-**   parameter. Unless the table has an external primary key index 
-**   (i.e. unless *peType is set to 3), then *piPk is set to zero. Or,
-**   if the table does have an external primary key index, then *piPk
-**   is set to the root page number of the primary key index before
-**   returning.
-**
-** ALGORITHM:
-**
-**   if( no entry exists in sqlite_master ){
-**     return RBU_PK_NOTABLE
-**   }else if( sql for the entry starts with "CREATE VIRTUAL" ){
-**     return RBU_PK_VTAB
-**   }else if( "PRAGMA index_list()" for the table contains a "pk" index ){
-**     if( the index that is the pk exists in sqlite_master ){
-**       *piPK = rootpage of that index.
-**       return RBU_PK_EXTERNAL
-**     }else{
-**       return RBU_PK_WITHOUT_ROWID
-**     }
-**   }else if( "PRAGMA table_info()" lists one or more "pk" columns ){
-**     return RBU_PK_IPK
-**   }else{
-**     return RBU_PK_NONE
-**   }
-*/
-static void rbuTableType(
-  tdsqlite3rbu *p,
-  const char *zTab,
-  int *peType,
-  int *piTnum,
-  int *piPk
-){
-  /*
-  ** 0) SELECT count(*) FROM sqlite_master where name=%Q AND IsVirtual(%Q)
-  ** 1) PRAGMA index_list = ?
-  ** 2) SELECT count(*) FROM sqlite_master where name=%Q 
-  ** 3) PRAGMA table_info = ?
-  */
-  tdsqlite3_stmt *aStmt[4] = {0, 0, 0, 0};
-
-  *peType = RBU_PK_NOTABLE;
-  *piPk = 0;
-
-  assert( p->rc==SQLITE_OK );
-  p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[0], &p->zErrmsg, 
-    tdsqlite3_mprintf(
-          "SELECT (sql LIKE 'create virtual%%'), rootpage"
-          "  FROM sqlite_master"
-          " WHERE name=%Q", zTab
-  ));
-  if( p->rc!=SQLITE_OK || tdsqlite3_step(aStmt[0])!=SQLITE_ROW ){
-    /* Either an error, or no such table. */
-    goto rbuTableType_end;
-  }
-  if( tdsqlite3_column_int(aStmt[0], 0) ){
-    *peType = RBU_PK_VTAB;                     /* virtual table */
-    goto rbuTableType_end;
-  }
-  *piTnum = tdsqlite3_column_int(aStmt[0], 1);
-
-  p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[1], &p->zErrmsg, 
-    tdsqlite3_mprintf("PRAGMA index_list=%Q",zTab)
-  );
-  if( p->rc ) goto rbuTableType_end;
-  while( tdsqlite3_step(aStmt[1])==SQLITE_ROW ){
-    const u8 *zOrig = tdsqlite3_column_text(aStmt[1], 3);
-    const u8 *zIdx = tdsqlite3_column_text(aStmt[1], 1);
-    if( zOrig && zIdx && zOrig[0]=='p' ){
-      p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[2], &p->zErrmsg, 
-          tdsqlite3_mprintf(
-            "SELECT rootpage FROM sqlite_master WHERE name = %Q", zIdx
-      ));
-      if( p->rc==SQLITE_OK ){
-        if( tdsqlite3_step(aStmt[2])==SQLITE_ROW ){
-          *piPk = tdsqlite3_column_int(aStmt[2], 0);
-          *peType = RBU_PK_EXTERNAL;
-        }else{
-          *peType = RBU_PK_WITHOUT_ROWID;
-        }
-      }
-      goto rbuTableType_end;
-    }
-  }
-
-  p->rc = prepareFreeAndCollectError(p->dbMain, &aStmt[3], &p->zErrmsg, 
-    tdsqlite3_mprintf("PRAGMA table_info=%Q",zTab)
-  );
-  if( p->rc==SQLITE_OK ){
-    while( tdsqlite3_step(aStmt[3])==SQLITE_ROW ){
-      if( tdsqlite3_column_int(aStmt[3],5)>0 ){
-        *peType = RBU_PK_IPK;                /* explicit IPK column */
-        goto rbuTableType_end;
-      }
-    }
-    *peType = RBU_PK_NONE;
-  }
-
-rbuTableType_end: {
-    unsigned int i;
-    for(i=0; i<sizeof(aStmt)/sizeof(aStmt[0]); i++){
-      rbuFinalize(p, aStmt[i]);
-    }
-  }
-}
-
-/*
-** This is a helper function for rbuObjIterCacheTableInfo(). It populates
-** the pIter->abIndexed[] array.
-*/
-static void rbuObjIterCacheIndexedCols(tdsqlite3rbu *p, RbuObjIter *pIter){
-  tdsqlite3_stmt *pList = 0;
-  int bIndex = 0;
-
-  if( p->rc==SQLITE_OK ){
-    memcpy(pIter->abIndexed, pIter->abTblPk, sizeof(u8)*pIter->nTblCol);
-    p->rc = prepareFreeAndCollectError(p->dbMain, &pList, &p->zErrmsg,
-        tdsqlite3_mprintf("PRAGMA main.index_list = %Q", pIter->zTbl)
-    );
-  }
-
-  pIter->nIndex = 0;
-  while( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pList) ){
-    const char *zIdx = (const char*)tdsqlite3_column_text(pList, 1);
-    int bPartial = tdsqlite3_column_int(pList, 4);
-    tdsqlite3_stmt *pXInfo = 0;
-    if( zIdx==0 ) break;
-    if( bPartial ){
-      memset(pIter->abIndexed, 0x01, sizeof(u8)*pIter->nTblCol);
-    }
-    p->rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
-        tdsqlite3_mprintf("PRAGMA main.index_xinfo = %Q", zIdx)
-    );
-    while( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pXInfo) ){
-      int iCid = tdsqlite3_column_int(pXInfo, 1);
-      if( iCid>=0 ) pIter->abIndexed[iCid] = 1;
-      if( iCid==-2 ){
-        memset(pIter->abIndexed, 0x01, sizeof(u8)*pIter->nTblCol);
-      }
-    }
-    rbuFinalize(p, pXInfo);
-    bIndex = 1;
-    pIter->nIndex++;
-  }
-
-  if( pIter->eType==RBU_PK_WITHOUT_ROWID ){
-    /* "PRAGMA index_list" includes the main PK b-tree */
-    pIter->nIndex--;
-  }
-
-  rbuFinalize(p, pList);
-  if( bIndex==0 ) pIter->abIndexed = 0;
-}
-
-
-/*
-** If they are not already populated, populate the pIter->azTblCol[],
-** pIter->abTblPk[], pIter->nTblCol and pIter->bRowid variables according to
-** the table (not index) that the iterator currently points to.
-**
-** Return SQLITE_OK if successful, or an SQLite error code otherwise. If
-** an error does occur, an error code and error message are also left in 
-** the RBU handle.
-*/
-static int rbuObjIterCacheTableInfo(tdsqlite3rbu *p, RbuObjIter *pIter){
-  if( pIter->azTblCol==0 ){
-    tdsqlite3_stmt *pStmt = 0;
-    int nCol = 0;
-    int i;                        /* for() loop iterator variable */
-    int bRbuRowid = 0;            /* If input table has column "rbu_rowid" */
-    int iOrder = 0;
-    int iTnum = 0;
-
-    /* Figure out the type of table this step will deal with. */
-    assert( pIter->eType==0 );
-    rbuTableType(p, pIter->zTbl, &pIter->eType, &iTnum, &pIter->iPkTnum);
-    if( p->rc==SQLITE_OK && pIter->eType==RBU_PK_NOTABLE ){
-      p->rc = SQLITE_ERROR;
-      p->zErrmsg = tdsqlite3_mprintf("no such table: %s", pIter->zTbl);
-    }
-    if( p->rc ) return p->rc;
-    if( pIter->zIdx==0 ) pIter->iTnum = iTnum;
-
-    assert( pIter->eType==RBU_PK_NONE || pIter->eType==RBU_PK_IPK 
-         || pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_WITHOUT_ROWID
-         || pIter->eType==RBU_PK_VTAB
-    );
-
-    /* Populate the azTblCol[] and nTblCol variables based on the columns
-    ** of the input table. Ignore any input table columns that begin with
-    ** "rbu_".  */
-    p->rc = prepareFreeAndCollectError(p->dbRbu, &pStmt, &p->zErrmsg, 
-        tdsqlite3_mprintf("SELECT * FROM '%q'", pIter->zDataTbl)
-    );
-    if( p->rc==SQLITE_OK ){
-      nCol = tdsqlite3_column_count(pStmt);
-      rbuAllocateIterArrays(p, pIter, nCol);
-    }
-    for(i=0; p->rc==SQLITE_OK && i<nCol; i++){
-      const char *zName = (const char*)tdsqlite3_column_name(pStmt, i);
-      if( tdsqlite3_strnicmp("rbu_", zName, 4) ){
-        char *zCopy = rbuStrndup(zName, &p->rc);
-        pIter->aiSrcOrder[pIter->nTblCol] = pIter->nTblCol;
-        pIter->azTblCol[pIter->nTblCol++] = zCopy;
-      }
-      else if( 0==tdsqlite3_stricmp("rbu_rowid", zName) ){
-        bRbuRowid = 1;
-      }
-    }
-    tdsqlite3_finalize(pStmt);
-    pStmt = 0;
-
-    if( p->rc==SQLITE_OK
-     && rbuIsVacuum(p)==0
-     && bRbuRowid!=(pIter->eType==RBU_PK_VTAB || pIter->eType==RBU_PK_NONE)
-    ){
-      p->rc = SQLITE_ERROR;
-      p->zErrmsg = tdsqlite3_mprintf(
-          "table %q %s rbu_rowid column", pIter->zDataTbl,
-          (bRbuRowid ? "may not have" : "requires")
-      );
-    }
-
-    /* Check that all non-HIDDEN columns in the destination table are also
-    ** present in the input table. Populate the abTblPk[], azTblType[] and
-    ** aiTblOrder[] arrays at the same time.  */
-    if( p->rc==SQLITE_OK ){
-      p->rc = prepareFreeAndCollectError(p->dbMain, &pStmt, &p->zErrmsg, 
-          tdsqlite3_mprintf("PRAGMA table_info(%Q)", pIter->zTbl)
-      );
-    }
-    while( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      const char *zName = (const char*)tdsqlite3_column_text(pStmt, 1);
-      if( zName==0 ) break;  /* An OOM - finalize() below returns S_NOMEM */
-      for(i=iOrder; i<pIter->nTblCol; i++){
-        if( 0==strcmp(zName, pIter->azTblCol[i]) ) break;
-      }
-      if( i==pIter->nTblCol ){
-        p->rc = SQLITE_ERROR;
-        p->zErrmsg = tdsqlite3_mprintf("column missing from %q: %s",
-            pIter->zDataTbl, zName
-        );
-      }else{
-        int iPk = tdsqlite3_column_int(pStmt, 5);
-        int bNotNull = tdsqlite3_column_int(pStmt, 3);
-        const char *zType = (const char*)tdsqlite3_column_text(pStmt, 2);
-
-        if( i!=iOrder ){
-          SWAP(int, pIter->aiSrcOrder[i], pIter->aiSrcOrder[iOrder]);
-          SWAP(char*, pIter->azTblCol[i], pIter->azTblCol[iOrder]);
-        }
-
-        pIter->azTblType[iOrder] = rbuStrndup(zType, &p->rc);
-        assert( iPk>=0 );
-        pIter->abTblPk[iOrder] = (u8)iPk;
-        pIter->abNotNull[iOrder] = (u8)bNotNull || (iPk!=0);
-        iOrder++;
-      }
-    }
-
-    rbuFinalize(p, pStmt);
-    rbuObjIterCacheIndexedCols(p, pIter);
-    assert( pIter->eType!=RBU_PK_VTAB || pIter->abIndexed==0 );
-    assert( pIter->eType!=RBU_PK_VTAB || pIter->nIndex==0 );
-  }
-
-  return p->rc;
-}
-
-/*
-** This function constructs and returns a pointer to a nul-terminated 
-** string containing some SQL clause or list based on one or more of the 
-** column names currently stored in the pIter->azTblCol[] array.
-*/
-static char *rbuObjIterGetCollist(
-  tdsqlite3rbu *p,                  /* RBU object */
-  RbuObjIter *pIter               /* Object iterator for column names */
-){
-  char *zList = 0;
-  const char *zSep = "";
-  int i;
-  for(i=0; i<pIter->nTblCol; i++){
-    const char *z = pIter->azTblCol[i];
-    zList = rbuMPrintf(p, "%z%s\"%w\"", zList, zSep, z);
-    zSep = ", ";
-  }
-  return zList;
-}
-
-/*
-** Return a comma separated list of the quoted PRIMARY KEY column names,
-** in order, for the current table. Before each column name, add the text
-** zPre. After each column name, add the zPost text. Use zSeparator as
-** the separator text (usually ", ").
-*/
-static char *rbuObjIterGetPkList(
-  tdsqlite3rbu *p,                  /* RBU object */
-  RbuObjIter *pIter,              /* Object iterator for column names */
-  const char *zPre,               /* Before each quoted column name */
-  const char *zSeparator,         /* Separator to use between columns */
-  const char *zPost               /* After each quoted column name */
-){
-  int iPk = 1;
-  char *zRet = 0;
-  const char *zSep = "";
-  while( 1 ){
-    int i;
-    for(i=0; i<pIter->nTblCol; i++){
-      if( (int)pIter->abTblPk[i]==iPk ){
-        const char *zCol = pIter->azTblCol[i];
-        zRet = rbuMPrintf(p, "%z%s%s\"%w\"%s", zRet, zSep, zPre, zCol, zPost);
-        zSep = zSeparator;
-        break;
-      }
-    }
-    if( i==pIter->nTblCol ) break;
-    iPk++;
-  }
-  return zRet;
-}
-
-/*
-** This function is called as part of restarting an RBU vacuum within 
-** stage 1 of the process (while the *-oal file is being built) while
-** updating a table (not an index). The table may be a rowid table or
-** a WITHOUT ROWID table. It queries the target database to find the 
-** largest key that has already been written to the target table and
-** constructs a WHERE clause that can be used to extract the remaining
-** rows from the source table. For a rowid table, the WHERE clause
-** is of the form:
-**
-**     "WHERE _rowid_ > ?"
-**
-** and for WITHOUT ROWID tables:
-**
-**     "WHERE (key1, key2) > (?, ?)"
-**
-** Instead of "?" placeholders, the actual WHERE clauses created by
-** this function contain literal SQL values.
-*/
-static char *rbuVacuumTableStart(
-  tdsqlite3rbu *p,                  /* RBU handle */
-  RbuObjIter *pIter,              /* RBU iterator object */
-  int bRowid,                     /* True for a rowid table */
-  const char *zWrite              /* Target table name prefix */
-){
-  tdsqlite3_stmt *pMax = 0;
-  char *zRet = 0;
-  if( bRowid ){
-    p->rc = prepareFreeAndCollectError(p->dbMain, &pMax, &p->zErrmsg, 
-        tdsqlite3_mprintf(
-          "SELECT max(_rowid_) FROM \"%s%w\"", zWrite, pIter->zTbl
-        )
-    );
-    if( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pMax) ){
-      tdsqlite3_int64 iMax = tdsqlite3_column_int64(pMax, 0);
-      zRet = rbuMPrintf(p, " WHERE _rowid_ > %lld ", iMax);
-    }
-    rbuFinalize(p, pMax);
-  }else{
-    char *zOrder = rbuObjIterGetPkList(p, pIter, "", ", ", " DESC");
-    char *zSelect = rbuObjIterGetPkList(p, pIter, "quote(", "||','||", ")");
-    char *zList = rbuObjIterGetPkList(p, pIter, "", ", ", "");
-
-    if( p->rc==SQLITE_OK ){
-      p->rc = prepareFreeAndCollectError(p->dbMain, &pMax, &p->zErrmsg, 
-          tdsqlite3_mprintf(
-            "SELECT %s FROM \"%s%w\" ORDER BY %s LIMIT 1", 
-                zSelect, zWrite, pIter->zTbl, zOrder
-          )
-      );
-      if( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pMax) ){
-        const char *zVal = (const char*)tdsqlite3_column_text(pMax, 0);
-        zRet = rbuMPrintf(p, " WHERE (%s) > (%s) ", zList, zVal);
-      }
-      rbuFinalize(p, pMax);
-    }
-
-    tdsqlite3_free(zOrder);
-    tdsqlite3_free(zSelect);
-    tdsqlite3_free(zList);
-  }
-  return zRet;
-}
-
-/*
-** This function is called as part of restating an RBU vacuum when the
-** current operation is writing content to an index. If possible, it
-** queries the target index b-tree for the largest key already written to
-** it, then composes and returns an expression that can be used in a WHERE 
-** clause to select the remaining required rows from the source table. 
-** It is only possible to return such an expression if:
-**
-**   * The index contains no DESC columns, and
-**   * The last key written to the index before the operation was 
-**     suspended does not contain any NULL values.
-**
-** The expression is of the form:
-**
-**   (index-field1, index-field2, ...) > (?, ?, ...)
-**
-** except that the "?" placeholders are replaced with literal values.
-**
-** If the expression cannot be created, NULL is returned. In this case,
-** the caller has to use an OFFSET clause to extract only the required 
-** rows from the sourct table, just as it does for an RBU update operation.
-*/
-char *rbuVacuumIndexStart(
-  tdsqlite3rbu *p,                  /* RBU handle */
-  RbuObjIter *pIter               /* RBU iterator object */
-){
-  char *zOrder = 0;
-  char *zLhs = 0;
-  char *zSelect = 0;
-  char *zVector = 0;
-  char *zRet = 0;
-  int bFailed = 0;
-  const char *zSep = "";
-  int iCol = 0;
-  tdsqlite3_stmt *pXInfo = 0;
-
-  p->rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
-      tdsqlite3_mprintf("PRAGMA main.index_xinfo = %Q", pIter->zIdx)
-  );
-  while( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pXInfo) ){
-    int iCid = tdsqlite3_column_int(pXInfo, 1);
-    const char *zCollate = (const char*)tdsqlite3_column_text(pXInfo, 4);
-    const char *zCol;
-    if( tdsqlite3_column_int(pXInfo, 3) ){
-      bFailed = 1;
-      break;
-    }
-
-    if( iCid<0 ){
-      if( pIter->eType==RBU_PK_IPK ){
-        int i;
-        for(i=0; pIter->abTblPk[i]==0; i++);
-        assert( i<pIter->nTblCol );
-        zCol = pIter->azTblCol[i];
-      }else{
-        zCol = "_rowid_";
-      }
-    }else{
-      zCol = pIter->azTblCol[iCid];
-    }
-
-    zLhs = rbuMPrintf(p, "%z%s \"%w\" COLLATE %Q",
-        zLhs, zSep, zCol, zCollate
-        );
-    zOrder = rbuMPrintf(p, "%z%s \"rbu_imp_%d%w\" COLLATE %Q DESC",
-        zOrder, zSep, iCol, zCol, zCollate
-        );
-    zSelect = rbuMPrintf(p, "%z%s quote(\"rbu_imp_%d%w\")",
-        zSelect, zSep, iCol, zCol
-        );
-    zSep = ", ";
-    iCol++;
-  }
-  rbuFinalize(p, pXInfo);
-  if( bFailed ) goto index_start_out;
-
-  if( p->rc==SQLITE_OK ){
-    tdsqlite3_stmt *pSel = 0;
-
-    p->rc = prepareFreeAndCollectError(p->dbMain, &pSel, &p->zErrmsg,
-        tdsqlite3_mprintf("SELECT %s FROM \"rbu_imp_%w\" ORDER BY %s LIMIT 1",
-          zSelect, pIter->zTbl, zOrder
-        )
-    );
-    if( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pSel) ){
-      zSep = "";
-      for(iCol=0; iCol<pIter->nCol; iCol++){
-        const char *zQuoted = (const char*)tdsqlite3_column_text(pSel, iCol);
-        if( zQuoted[0]=='N' ){
-          bFailed = 1;
-          break;
-        }
-        zVector = rbuMPrintf(p, "%z%s%s", zVector, zSep, zQuoted);
-        zSep = ", ";
-      }
-
-      if( !bFailed ){
-        zRet = rbuMPrintf(p, "(%s) > (%s)", zLhs, zVector);
-      }
-    }
-    rbuFinalize(p, pSel);
-  }
-
- index_start_out:
-  tdsqlite3_free(zOrder);
-  tdsqlite3_free(zSelect);
-  tdsqlite3_free(zVector);
-  tdsqlite3_free(zLhs);
-  return zRet;
-}
-
-/*
-** This function is used to create a SELECT list (the list of SQL 
-** expressions that follows a SELECT keyword) for a SELECT statement 
-** used to read from an data_xxx or rbu_tmp_xxx table while updating the 
-** index object currently indicated by the iterator object passed as the 
-** second argument. A "PRAGMA index_xinfo = <idxname>" statement is used 
-** to obtain the required information.
-**
-** If the index is of the following form:
-**
-**   CREATE INDEX i1 ON t1(c, b COLLATE nocase);
-**
-** and "t1" is a table with an explicit INTEGER PRIMARY KEY column 
-** "ipk", the returned string is:
-**
-**   "`c` COLLATE 'BINARY', `b` COLLATE 'NOCASE', `ipk` COLLATE 'BINARY'"
-**
-** As well as the returned string, three other malloc'd strings are 
-** returned via output parameters. As follows:
-**
-**   pzImposterCols: ...
-**   pzImposterPk: ...
-**   pzWhere: ...
-*/
-static char *rbuObjIterGetIndexCols(
-  tdsqlite3rbu *p,                  /* RBU object */
-  RbuObjIter *pIter,              /* Object iterator for column names */
-  char **pzImposterCols,          /* OUT: Columns for imposter table */
-  char **pzImposterPk,            /* OUT: Imposter PK clause */
-  char **pzWhere,                 /* OUT: WHERE clause */
-  int *pnBind                     /* OUT: Trbul number of columns */
-){
-  int rc = p->rc;                 /* Error code */
-  int rc2;                        /* tdsqlite3_finalize() return code */
-  char *zRet = 0;                 /* String to return */
-  char *zImpCols = 0;             /* String to return via *pzImposterCols */
-  char *zImpPK = 0;               /* String to return via *pzImposterPK */
-  char *zWhere = 0;               /* String to return via *pzWhere */
-  int nBind = 0;                  /* Value to return via *pnBind */
-  const char *zCom = "";          /* Set to ", " later on */
-  const char *zAnd = "";          /* Set to " AND " later on */
-  tdsqlite3_stmt *pXInfo = 0;       /* PRAGMA index_xinfo = ? */
-
-  if( rc==SQLITE_OK ){
-    assert( p->zErrmsg==0 );
-    rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
-        tdsqlite3_mprintf("PRAGMA main.index_xinfo = %Q", pIter->zIdx)
-    );
-  }
-
-  while( rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pXInfo) ){
-    int iCid = tdsqlite3_column_int(pXInfo, 1);
-    int bDesc = tdsqlite3_column_int(pXInfo, 3);
-    const char *zCollate = (const char*)tdsqlite3_column_text(pXInfo, 4);
-    const char *zCol = 0;
-    const char *zType;
-
-    if( iCid==-2 ){
-      int iSeq = tdsqlite3_column_int(pXInfo, 0);
-      zRet = tdsqlite3_mprintf("%z%s(%.*s) COLLATE %Q", zRet, zCom,
-          pIter->aIdxCol[iSeq].nSpan, pIter->aIdxCol[iSeq].zSpan, zCollate
-      );
-      zType = "";
-    }else {
-      if( iCid<0 ){
-        /* An integer primary key. If the table has an explicit IPK, use
-        ** its name. Otherwise, use "rbu_rowid".  */
-        if( pIter->eType==RBU_PK_IPK ){
-          int i;
-          for(i=0; pIter->abTblPk[i]==0; i++);
-          assert( i<pIter->nTblCol );
-          zCol = pIter->azTblCol[i];
-        }else if( rbuIsVacuum(p) ){
-          zCol = "_rowid_";
-        }else{
-          zCol = "rbu_rowid";
-        }
-        zType = "INTEGER";
-      }else{
-        zCol = pIter->azTblCol[iCid];
-        zType = pIter->azTblType[iCid];
-      }
-      zRet = tdsqlite3_mprintf("%z%s\"%w\" COLLATE %Q", zRet, zCom,zCol,zCollate);
-    }
-
-    if( pIter->bUnique==0 || tdsqlite3_column_int(pXInfo, 5) ){
-      const char *zOrder = (bDesc ? " DESC" : "");
-      zImpPK = tdsqlite3_mprintf("%z%s\"rbu_imp_%d%w\"%s", 
-          zImpPK, zCom, nBind, zCol, zOrder
-      );
-    }
-    zImpCols = tdsqlite3_mprintf("%z%s\"rbu_imp_%d%w\" %s COLLATE %Q", 
-        zImpCols, zCom, nBind, zCol, zType, zCollate
-    );
-    zWhere = tdsqlite3_mprintf(
-        "%z%s\"rbu_imp_%d%w\" IS ?", zWhere, zAnd, nBind, zCol
-    );
-    if( zRet==0 || zImpPK==0 || zImpCols==0 || zWhere==0 ) rc = SQLITE_NOMEM;
-    zCom = ", ";
-    zAnd = " AND ";
-    nBind++;
-  }
-
-  rc2 = tdsqlite3_finalize(pXInfo);
-  if( rc==SQLITE_OK ) rc = rc2;
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_free(zRet);
-    tdsqlite3_free(zImpCols);
-    tdsqlite3_free(zImpPK);
-    tdsqlite3_free(zWhere);
-    zRet = 0;
-    zImpCols = 0;
-    zImpPK = 0;
-    zWhere = 0;
-    p->rc = rc;
-  }
-
-  *pzImposterCols = zImpCols;
-  *pzImposterPk = zImpPK;
-  *pzWhere = zWhere;
-  *pnBind = nBind;
-  return zRet;
-}
-
-/*
-** Assuming the current table columns are "a", "b" and "c", and the zObj
-** paramter is passed "old", return a string of the form:
-**
-**     "old.a, old.b, old.b"
-**
-** With the column names escaped.
-**
-** For tables with implicit rowids - RBU_PK_EXTERNAL and RBU_PK_NONE, append
-** the text ", old._rowid_" to the returned value.
-*/
-static char *rbuObjIterGetOldlist(
-  tdsqlite3rbu *p, 
-  RbuObjIter *pIter,
-  const char *zObj
-){
-  char *zList = 0;
-  if( p->rc==SQLITE_OK && pIter->abIndexed ){
-    const char *zS = "";
-    int i;
-    for(i=0; i<pIter->nTblCol; i++){
-      if( pIter->abIndexed[i] ){
-        const char *zCol = pIter->azTblCol[i];
-        zList = tdsqlite3_mprintf("%z%s%s.\"%w\"", zList, zS, zObj, zCol);
-      }else{
-        zList = tdsqlite3_mprintf("%z%sNULL", zList, zS);
-      }
-      zS = ", ";
-      if( zList==0 ){
-        p->rc = SQLITE_NOMEM;
-        break;
-      }
-    }
-
-    /* For a table with implicit rowids, append "old._rowid_" to the list. */
-    if( pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE ){
-      zList = rbuMPrintf(p, "%z, %s._rowid_", zList, zObj);
-    }
-  }
-  return zList;
-}
-
-/*
-** Return an expression that can be used in a WHERE clause to match the
-** primary key of the current table. For example, if the table is:
-**
-**   CREATE TABLE t1(a, b, c, PRIMARY KEY(b, c));
-**
-** Return the string:
-**
-**   "b = ?1 AND c = ?2"
-*/
-static char *rbuObjIterGetWhere(
-  tdsqlite3rbu *p, 
-  RbuObjIter *pIter
-){
-  char *zList = 0;
-  if( pIter->eType==RBU_PK_VTAB || pIter->eType==RBU_PK_NONE ){
-    zList = rbuMPrintf(p, "_rowid_ = ?%d", pIter->nTblCol+1);
-  }else if( pIter->eType==RBU_PK_EXTERNAL ){
-    const char *zSep = "";
-    int i;
-    for(i=0; i<pIter->nTblCol; i++){
-      if( pIter->abTblPk[i] ){
-        zList = rbuMPrintf(p, "%z%sc%d=?%d", zList, zSep, i, i+1);
-        zSep = " AND ";
-      }
-    }
-    zList = rbuMPrintf(p, 
-        "_rowid_ = (SELECT id FROM rbu_imposter2 WHERE %z)", zList
-    );
-
-  }else{
-    const char *zSep = "";
-    int i;
-    for(i=0; i<pIter->nTblCol; i++){
-      if( pIter->abTblPk[i] ){
-        const char *zCol = pIter->azTblCol[i];
-        zList = rbuMPrintf(p, "%z%s\"%w\"=?%d", zList, zSep, zCol, i+1);
-        zSep = " AND ";
-      }
-    }
-  }
-  return zList;
-}
-
-/*
-** The SELECT statement iterating through the keys for the current object
-** (p->objiter.pSelect) currently points to a valid row. However, there
-** is something wrong with the rbu_control value in the rbu_control value
-** stored in the (p->nCol+1)'th column. Set the error code and error message
-** of the RBU handle to something reflecting this.
-*/
-static void rbuBadControlError(tdsqlite3rbu *p){
-  p->rc = SQLITE_ERROR;
-  p->zErrmsg = tdsqlite3_mprintf("invalid rbu_control value");
-}
-
-
-/*
-** Return a nul-terminated string containing the comma separated list of
-** assignments that should be included following the "SET" keyword of
-** an UPDATE statement used to update the table object that the iterator
-** passed as the second argument currently points to if the rbu_control
-** column of the data_xxx table entry is set to zMask.
-**
-** The memory for the returned string is obtained from tdsqlite3_malloc().
-** It is the responsibility of the caller to eventually free it using
-** tdsqlite3_free(). 
-**
-** If an OOM error is encountered when allocating space for the new
-** string, an error code is left in the rbu handle passed as the first
-** argument and NULL is returned. Or, if an error has already occurred
-** when this function is called, NULL is returned immediately, without
-** attempting the allocation or modifying the stored error code.
-*/
-static char *rbuObjIterGetSetlist(
-  tdsqlite3rbu *p,
-  RbuObjIter *pIter,
-  const char *zMask
-){
-  char *zList = 0;
-  if( p->rc==SQLITE_OK ){
-    int i;
-
-    if( (int)strlen(zMask)!=pIter->nTblCol ){
-      rbuBadControlError(p);
-    }else{
-      const char *zSep = "";
-      for(i=0; i<pIter->nTblCol; i++){
-        char c = zMask[pIter->aiSrcOrder[i]];
-        if( c=='x' ){
-          zList = rbuMPrintf(p, "%z%s\"%w\"=?%d", 
-              zList, zSep, pIter->azTblCol[i], i+1
-          );
-          zSep = ", ";
-        }
-        else if( c=='d' ){
-          zList = rbuMPrintf(p, "%z%s\"%w\"=rbu_delta(\"%w\", ?%d)", 
-              zList, zSep, pIter->azTblCol[i], pIter->azTblCol[i], i+1
-          );
-          zSep = ", ";
-        }
-        else if( c=='f' ){
-          zList = rbuMPrintf(p, "%z%s\"%w\"=rbu_fossil_delta(\"%w\", ?%d)", 
-              zList, zSep, pIter->azTblCol[i], pIter->azTblCol[i], i+1
-          );
-          zSep = ", ";
-        }
-      }
-    }
-  }
-  return zList;
-}
-
-/*
-** Return a nul-terminated string consisting of nByte comma separated
-** "?" expressions. For example, if nByte is 3, return a pointer to
-** a buffer containing the string "?,?,?".
-**
-** The memory for the returned string is obtained from tdsqlite3_malloc().
-** It is the responsibility of the caller to eventually free it using
-** tdsqlite3_free(). 
-**
-** If an OOM error is encountered when allocating space for the new
-** string, an error code is left in the rbu handle passed as the first
-** argument and NULL is returned. Or, if an error has already occurred
-** when this function is called, NULL is returned immediately, without
-** attempting the allocation or modifying the stored error code.
-*/
-static char *rbuObjIterGetBindlist(tdsqlite3rbu *p, int nBind){
-  char *zRet = 0;
-  tdsqlite3_int64 nByte = 2*(tdsqlite3_int64)nBind + 1;
-
-  zRet = (char*)rbuMalloc(p, nByte);
-  if( zRet ){
-    int i;
-    for(i=0; i<nBind; i++){
-      zRet[i*2] = '?';
-      zRet[i*2+1] = (i+1==nBind) ? '\0' : ',';
-    }
-  }
-  return zRet;
-}
-
-/*
-** The iterator currently points to a table (not index) of type 
-** RBU_PK_WITHOUT_ROWID. This function creates the PRIMARY KEY 
-** declaration for the corresponding imposter table. For example,
-** if the iterator points to a table created as:
-**
-**   CREATE TABLE t1(a, b, c, PRIMARY KEY(b, a DESC)) WITHOUT ROWID
-**
-** this function returns:
-**
-**   PRIMARY KEY("b", "a" DESC)
-*/
-static char *rbuWithoutRowidPK(tdsqlite3rbu *p, RbuObjIter *pIter){
-  char *z = 0;
-  assert( pIter->zIdx==0 );
-  if( p->rc==SQLITE_OK ){
-    const char *zSep = "PRIMARY KEY(";
-    tdsqlite3_stmt *pXList = 0;     /* PRAGMA index_list = (pIter->zTbl) */
-    tdsqlite3_stmt *pXInfo = 0;     /* PRAGMA index_xinfo = <pk-index> */
-   
-    p->rc = prepareFreeAndCollectError(p->dbMain, &pXList, &p->zErrmsg,
-        tdsqlite3_mprintf("PRAGMA main.index_list = %Q", pIter->zTbl)
-    );
-    while( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pXList) ){
-      const char *zOrig = (const char*)tdsqlite3_column_text(pXList,3);
-      if( zOrig && strcmp(zOrig, "pk")==0 ){
-        const char *zIdx = (const char*)tdsqlite3_column_text(pXList,1);
-        if( zIdx ){
-          p->rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
-              tdsqlite3_mprintf("PRAGMA main.index_xinfo = %Q", zIdx)
-          );
-        }
-        break;
-      }
-    }
-    rbuFinalize(p, pXList);
-
-    while( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pXInfo) ){
-      if( tdsqlite3_column_int(pXInfo, 5) ){
-        /* int iCid = tdsqlite3_column_int(pXInfo, 0); */
-        const char *zCol = (const char*)tdsqlite3_column_text(pXInfo, 2);
-        const char *zDesc = tdsqlite3_column_int(pXInfo, 3) ? " DESC" : "";
-        z = rbuMPrintf(p, "%z%s\"%w\"%s", z, zSep, zCol, zDesc);
-        zSep = ", ";
-      }
-    }
-    z = rbuMPrintf(p, "%z)", z);
-    rbuFinalize(p, pXInfo);
-  }
-  return z;
-}
-
-/*
-** This function creates the second imposter table used when writing to
-** a table b-tree where the table has an external primary key. If the
-** iterator passed as the second argument does not currently point to
-** a table (not index) with an external primary key, this function is a
-** no-op. 
-**
-** Assuming the iterator does point to a table with an external PK, this
-** function creates a WITHOUT ROWID imposter table named "rbu_imposter2"
-** used to access that PK index. For example, if the target table is
-** declared as follows:
-**
-**   CREATE TABLE t1(a, b TEXT, c REAL, PRIMARY KEY(b, c));
-**
-** then the imposter table schema is:
-**
-**   CREATE TABLE rbu_imposter2(c1 TEXT, c2 REAL, id INTEGER) WITHOUT ROWID;
-**
-*/
-static void rbuCreateImposterTable2(tdsqlite3rbu *p, RbuObjIter *pIter){
-  if( p->rc==SQLITE_OK && pIter->eType==RBU_PK_EXTERNAL ){
-    int tnum = pIter->iPkTnum;    /* Root page of PK index */
-    tdsqlite3_stmt *pQuery = 0;     /* SELECT name ... WHERE rootpage = $tnum */
-    const char *zIdx = 0;         /* Name of PK index */
-    tdsqlite3_stmt *pXInfo = 0;     /* PRAGMA main.index_xinfo = $zIdx */
-    const char *zComma = "";
-    char *zCols = 0;              /* Used to build up list of table cols */
-    char *zPk = 0;                /* Used to build up table PK declaration */
-
-    /* Figure out the name of the primary key index for the current table.
-    ** This is needed for the argument to "PRAGMA index_xinfo". Set
-    ** zIdx to point to a nul-terminated string containing this name. */
-    p->rc = prepareAndCollectError(p->dbMain, &pQuery, &p->zErrmsg, 
-        "SELECT name FROM sqlite_master WHERE rootpage = ?"
-    );
-    if( p->rc==SQLITE_OK ){
-      tdsqlite3_bind_int(pQuery, 1, tnum);
-      if( SQLITE_ROW==tdsqlite3_step(pQuery) ){
-        zIdx = (const char*)tdsqlite3_column_text(pQuery, 0);
-      }
-    }
-    if( zIdx ){
-      p->rc = prepareFreeAndCollectError(p->dbMain, &pXInfo, &p->zErrmsg,
-          tdsqlite3_mprintf("PRAGMA main.index_xinfo = %Q", zIdx)
-      );
-    }
-    rbuFinalize(p, pQuery);
-
-    while( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pXInfo) ){
-      int bKey = tdsqlite3_column_int(pXInfo, 5);
-      if( bKey ){
-        int iCid = tdsqlite3_column_int(pXInfo, 1);
-        int bDesc = tdsqlite3_column_int(pXInfo, 3);
-        const char *zCollate = (const char*)tdsqlite3_column_text(pXInfo, 4);
-        zCols = rbuMPrintf(p, "%z%sc%d %s COLLATE %Q", zCols, zComma, 
-            iCid, pIter->azTblType[iCid], zCollate
-        );
-        zPk = rbuMPrintf(p, "%z%sc%d%s", zPk, zComma, iCid, bDesc?" DESC":"");
-        zComma = ", ";
-      }
-    }
-    zCols = rbuMPrintf(p, "%z, id INTEGER", zCols);
-    rbuFinalize(p, pXInfo);
-
-    tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 1, tnum);
-    rbuMPrintfExec(p, p->dbMain,
-        "CREATE TABLE rbu_imposter2(%z, PRIMARY KEY(%z)) WITHOUT ROWID", 
-        zCols, zPk
-    );
-    tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 0);
-  }
-}
-
-/*
-** If an error has already occurred when this function is called, it 
-** immediately returns zero (without doing any work). Or, if an error
-** occurs during the execution of this function, it sets the error code
-** in the tdsqlite3rbu object indicated by the first argument and returns
-** zero.
-**
-** The iterator passed as the second argument is guaranteed to point to
-** a table (not an index) when this function is called. This function
-** attempts to create any imposter table required to write to the main
-** table b-tree of the table before returning. Non-zero is returned if
-** an imposter table are created, or zero otherwise.
-**
-** An imposter table is required in all cases except RBU_PK_VTAB. Only
-** virtual tables are written to directly. The imposter table has the 
-** same schema as the actual target table (less any UNIQUE constraints). 
-** More precisely, the "same schema" means the same columns, types, 
-** collation sequences. For tables that do not have an external PRIMARY
-** KEY, it also means the same PRIMARY KEY declaration.
-*/
-static void rbuCreateImposterTable(tdsqlite3rbu *p, RbuObjIter *pIter){
-  if( p->rc==SQLITE_OK && pIter->eType!=RBU_PK_VTAB ){
-    int tnum = pIter->iTnum;
-    const char *zComma = "";
-    char *zSql = 0;
-    int iCol;
-    tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 1);
-
-    for(iCol=0; p->rc==SQLITE_OK && iCol<pIter->nTblCol; iCol++){
-      const char *zPk = "";
-      const char *zCol = pIter->azTblCol[iCol];
-      const char *zColl = 0;
-
-      p->rc = tdsqlite3_table_column_metadata(
-          p->dbMain, "main", pIter->zTbl, zCol, 0, &zColl, 0, 0, 0
-      );
-
-      if( pIter->eType==RBU_PK_IPK && pIter->abTblPk[iCol] ){
-        /* If the target table column is an "INTEGER PRIMARY KEY", add
-        ** "PRIMARY KEY" to the imposter table column declaration. */
-        zPk = "PRIMARY KEY ";
-      }
-      zSql = rbuMPrintf(p, "%z%s\"%w\" %s %sCOLLATE %Q%s", 
-          zSql, zComma, zCol, pIter->azTblType[iCol], zPk, zColl,
-          (pIter->abNotNull[iCol] ? " NOT NULL" : "")
-      );
-      zComma = ", ";
-    }
-
-    if( pIter->eType==RBU_PK_WITHOUT_ROWID ){
-      char *zPk = rbuWithoutRowidPK(p, pIter);
-      if( zPk ){
-        zSql = rbuMPrintf(p, "%z, %z", zSql, zPk);
-      }
-    }
-
-    tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 1, tnum);
-    rbuMPrintfExec(p, p->dbMain, "CREATE TABLE \"rbu_imp_%w\"(%z)%s", 
-        pIter->zTbl, zSql, 
-        (pIter->eType==RBU_PK_WITHOUT_ROWID ? " WITHOUT ROWID" : "")
-    );
-    tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 0);
-  }
-}
-
-/*
-** Prepare a statement used to insert rows into the "rbu_tmp_xxx" table.
-** Specifically a statement of the form:
-**
-**     INSERT INTO rbu_tmp_xxx VALUES(?, ?, ? ...);
-**
-** The number of bound variables is equal to the number of columns in
-** the target table, plus one (for the rbu_control column), plus one more 
-** (for the rbu_rowid column) if the target table is an implicit IPK or 
-** virtual table.
-*/
-static void rbuObjIterPrepareTmpInsert(
-  tdsqlite3rbu *p, 
-  RbuObjIter *pIter,
-  const char *zCollist,
-  const char *zRbuRowid
-){
-  int bRbuRowid = (pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE);
-  char *zBind = rbuObjIterGetBindlist(p, pIter->nTblCol + 1 + bRbuRowid);
-  if( zBind ){
-    assert( pIter->pTmpInsert==0 );
-    p->rc = prepareFreeAndCollectError(
-        p->dbRbu, &pIter->pTmpInsert, &p->zErrmsg, tdsqlite3_mprintf(
-          "INSERT INTO %s.'rbu_tmp_%q'(rbu_control,%s%s) VALUES(%z)", 
-          p->zStateDb, pIter->zDataTbl, zCollist, zRbuRowid, zBind
-    ));
-  }
-}
-
-static void rbuTmpInsertFunc(
-  tdsqlite3_context *pCtx, 
-  int nVal,
-  tdsqlite3_value **apVal
-){
-  tdsqlite3rbu *p = tdsqlite3_user_data(pCtx);
-  int rc = SQLITE_OK;
-  int i;
-
-  assert( tdsqlite3_value_int(apVal[0])!=0
-      || p->objiter.eType==RBU_PK_EXTERNAL 
-      || p->objiter.eType==RBU_PK_NONE 
-  );
-  if( tdsqlite3_value_int(apVal[0])!=0 ){
-    p->nPhaseOneStep += p->objiter.nIndex;
-  }
-
-  for(i=0; rc==SQLITE_OK && i<nVal; i++){
-    rc = tdsqlite3_bind_value(p->objiter.pTmpInsert, i+1, apVal[i]);
-  }
-  if( rc==SQLITE_OK ){
-    tdsqlite3_step(p->objiter.pTmpInsert);
-    rc = tdsqlite3_reset(p->objiter.pTmpInsert);
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_result_error_code(pCtx, rc);
-  }
-}
-
-static char *rbuObjIterGetIndexWhere(tdsqlite3rbu *p, RbuObjIter *pIter){
-  tdsqlite3_stmt *pStmt = 0;
-  int rc = p->rc;
-  char *zRet = 0;
-
-  assert( pIter->zIdxSql==0 && pIter->nIdxCol==0 && pIter->aIdxCol==0 );
-
-  if( rc==SQLITE_OK ){
-    rc = prepareAndCollectError(p->dbMain, &pStmt, &p->zErrmsg,
-        "SELECT trim(sql) FROM sqlite_master WHERE type='index' AND name=?"
-    );
-  }
-  if( rc==SQLITE_OK ){
-    int rc2;
-    rc = tdsqlite3_bind_text(pStmt, 1, pIter->zIdx, -1, SQLITE_STATIC);
-    if( rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      char *zSql = (char*)tdsqlite3_column_text(pStmt, 0);
-      if( zSql ){
-        pIter->zIdxSql = zSql = rbuStrndup(zSql, &rc);
-      }
-      if( zSql ){
-        int nParen = 0;           /* Number of open parenthesis */
-        int i;
-        int iIdxCol = 0;
-        int nIdxAlloc = 0;
-        for(i=0; zSql[i]; i++){
-          char c = zSql[i];
-
-          /* If necessary, grow the pIter->aIdxCol[] array */
-          if( iIdxCol==nIdxAlloc ){
-            RbuSpan *aIdxCol = (RbuSpan*)tdsqlite3_realloc(
-                pIter->aIdxCol, (nIdxAlloc+16)*sizeof(RbuSpan)
-            );
-            if( aIdxCol==0 ){
-              rc = SQLITE_NOMEM;
-              break;
-            }
-            pIter->aIdxCol = aIdxCol;
-            nIdxAlloc += 16;
-          }
-
-          if( c=='(' ){
-            if( nParen==0 ){
-              assert( iIdxCol==0 );
-              pIter->aIdxCol[0].zSpan = &zSql[i+1];
-            }
-            nParen++;
-          }
-          else if( c==')' ){
-            nParen--;
-            if( nParen==0 ){
-              int nSpan = &zSql[i] - pIter->aIdxCol[iIdxCol].zSpan;
-              pIter->aIdxCol[iIdxCol++].nSpan = nSpan;
-              i++;
-              break;
-            }
-          }else if( c==',' && nParen==1 ){
-            int nSpan = &zSql[i] - pIter->aIdxCol[iIdxCol].zSpan;
-            pIter->aIdxCol[iIdxCol++].nSpan = nSpan;
-            pIter->aIdxCol[iIdxCol].zSpan = &zSql[i+1];
-          }else if( c=='"' || c=='\'' || c=='`' ){
-            for(i++; 1; i++){
-              if( zSql[i]==c ){
-                if( zSql[i+1]!=c ) break;
-                i++;
-              }
-            }
-          }else if( c=='[' ){
-            for(i++; 1; i++){
-              if( zSql[i]==']' ) break;
-            }
-          }else if( c=='-' && zSql[i+1]=='-' ){
-            for(i=i+2; zSql[i] && zSql[i]!='\n'; i++);
-            if( zSql[i]=='\0' ) break;
-          }else if( c=='/' && zSql[i+1]=='*' ){
-            for(i=i+2; zSql[i] && (zSql[i]!='*' || zSql[i+1]!='/'); i++);
-            if( zSql[i]=='\0' ) break;
-            i++;
-          }
-        }
-        if( zSql[i] ){
-          zRet = rbuStrndup(&zSql[i], &rc);
-        }
-        pIter->nIdxCol = iIdxCol;
-      }
-    }
-
-    rc2 = tdsqlite3_finalize(pStmt);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  p->rc = rc;
-  return zRet;
-}
-
-/*
-** Ensure that the SQLite statement handles required to update the 
-** target database object currently indicated by the iterator passed 
-** as the second argument are available.
-*/
-static int rbuObjIterPrepareAll(
-  tdsqlite3rbu *p, 
-  RbuObjIter *pIter,
-  int nOffset                     /* Add "LIMIT -1 OFFSET $nOffset" to SELECT */
-){
-  assert( pIter->bCleanup==0 );
-  if( pIter->pSelect==0 && rbuObjIterCacheTableInfo(p, pIter)==SQLITE_OK ){
-    const int tnum = pIter->iTnum;
-    char *zCollist = 0;           /* List of indexed columns */
-    char **pz = &p->zErrmsg;
-    const char *zIdx = pIter->zIdx;
-    char *zLimit = 0;
-
-    if( nOffset ){
-      zLimit = tdsqlite3_mprintf(" LIMIT -1 OFFSET %d", nOffset);
-      if( !zLimit ) p->rc = SQLITE_NOMEM;
-    }
-
-    if( zIdx ){
-      const char *zTbl = pIter->zTbl;
-      char *zImposterCols = 0;    /* Columns for imposter table */
-      char *zImposterPK = 0;      /* Primary key declaration for imposter */
-      char *zWhere = 0;           /* WHERE clause on PK columns */
-      char *zBind = 0;
-      char *zPart = 0;
-      int nBind = 0;
-
-      assert( pIter->eType!=RBU_PK_VTAB );
-      zPart = rbuObjIterGetIndexWhere(p, pIter);
-      zCollist = rbuObjIterGetIndexCols(
-          p, pIter, &zImposterCols, &zImposterPK, &zWhere, &nBind
-      );
-      zBind = rbuObjIterGetBindlist(p, nBind);
-
-      /* Create the imposter table used to write to this index. */
-      tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 1);
-      tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 1,tnum);
-      rbuMPrintfExec(p, p->dbMain,
-          "CREATE TABLE \"rbu_imp_%w\"( %s, PRIMARY KEY( %s ) ) WITHOUT ROWID",
-          zTbl, zImposterCols, zImposterPK
-      );
-      tdsqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->dbMain, "main", 0, 0);
-
-      /* Create the statement to insert index entries */
-      pIter->nCol = nBind;
-      if( p->rc==SQLITE_OK ){
-        p->rc = prepareFreeAndCollectError(
-            p->dbMain, &pIter->pInsert, &p->zErrmsg,
-          tdsqlite3_mprintf("INSERT INTO \"rbu_imp_%w\" VALUES(%s)", zTbl, zBind)
-        );
-      }
-
-      /* And to delete index entries */
-      if( rbuIsVacuum(p)==0 && p->rc==SQLITE_OK ){
-        p->rc = prepareFreeAndCollectError(
-            p->dbMain, &pIter->pDelete, &p->zErrmsg,
-          tdsqlite3_mprintf("DELETE FROM \"rbu_imp_%w\" WHERE %s", zTbl, zWhere)
-        );
-      }
-
-      /* Create the SELECT statement to read keys in sorted order */
-      if( p->rc==SQLITE_OK ){
-        char *zSql;
-        if( rbuIsVacuum(p) ){
-          char *zStart = 0;
-          if( nOffset ){
-            zStart = rbuVacuumIndexStart(p, pIter);
-            if( zStart ){
-              tdsqlite3_free(zLimit);
-              zLimit = 0;
-            }
-          }
-
-          zSql = tdsqlite3_mprintf(
-              "SELECT %s, 0 AS rbu_control FROM '%q' %s %s %s ORDER BY %s%s",
-              zCollist, 
-              pIter->zDataTbl,
-              zPart, 
-              (zStart ? (zPart ? "AND" : "WHERE") : ""), zStart,
-              zCollist, zLimit
-          );
-          tdsqlite3_free(zStart);
-        }else
-
-        if( pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE ){
-          zSql = tdsqlite3_mprintf(
-              "SELECT %s, rbu_control FROM %s.'rbu_tmp_%q' %s ORDER BY %s%s",
-              zCollist, p->zStateDb, pIter->zDataTbl,
-              zPart, zCollist, zLimit
-          );
-        }else{
-          zSql = tdsqlite3_mprintf(
-              "SELECT %s, rbu_control FROM %s.'rbu_tmp_%q' %s "
-              "UNION ALL "
-              "SELECT %s, rbu_control FROM '%q' "
-              "%s %s typeof(rbu_control)='integer' AND rbu_control!=1 "
-              "ORDER BY %s%s",
-              zCollist, p->zStateDb, pIter->zDataTbl, zPart,
-              zCollist, pIter->zDataTbl, 
-              zPart,
-              (zPart ? "AND" : "WHERE"),
-              zCollist, zLimit
-          );
-        }
-        if( p->rc==SQLITE_OK ){
-          p->rc = prepareFreeAndCollectError(p->dbRbu,&pIter->pSelect,pz,zSql);
-        }else{
-          tdsqlite3_free(zSql);
-        }
-      }
-
-      tdsqlite3_free(zImposterCols);
-      tdsqlite3_free(zImposterPK);
-      tdsqlite3_free(zWhere);
-      tdsqlite3_free(zBind);
-      tdsqlite3_free(zPart);
-    }else{
-      int bRbuRowid = (pIter->eType==RBU_PK_VTAB)
-                    ||(pIter->eType==RBU_PK_NONE)
-                    ||(pIter->eType==RBU_PK_EXTERNAL && rbuIsVacuum(p));
-      const char *zTbl = pIter->zTbl;       /* Table this step applies to */
-      const char *zWrite;                   /* Imposter table name */
-
-      char *zBindings = rbuObjIterGetBindlist(p, pIter->nTblCol + bRbuRowid);
-      char *zWhere = rbuObjIterGetWhere(p, pIter);
-      char *zOldlist = rbuObjIterGetOldlist(p, pIter, "old");
-      char *zNewlist = rbuObjIterGetOldlist(p, pIter, "new");
-
-      zCollist = rbuObjIterGetCollist(p, pIter);
-      pIter->nCol = pIter->nTblCol;
-
-      /* Create the imposter table or tables (if required). */
-      rbuCreateImposterTable(p, pIter);
-      rbuCreateImposterTable2(p, pIter);
-      zWrite = (pIter->eType==RBU_PK_VTAB ? "" : "rbu_imp_");
-
-      /* Create the INSERT statement to write to the target PK b-tree */
-      if( p->rc==SQLITE_OK ){
-        p->rc = prepareFreeAndCollectError(p->dbMain, &pIter->pInsert, pz,
-            tdsqlite3_mprintf(
-              "INSERT INTO \"%s%w\"(%s%s) VALUES(%s)", 
-              zWrite, zTbl, zCollist, (bRbuRowid ? ", _rowid_" : ""), zBindings
-            )
-        );
-      }
-
-      /* Create the DELETE statement to write to the target PK b-tree.
-      ** Because it only performs INSERT operations, this is not required for
-      ** an rbu vacuum handle.  */
-      if( rbuIsVacuum(p)==0 && p->rc==SQLITE_OK ){
-        p->rc = prepareFreeAndCollectError(p->dbMain, &pIter->pDelete, pz,
-            tdsqlite3_mprintf(
-              "DELETE FROM \"%s%w\" WHERE %s", zWrite, zTbl, zWhere
-            )
-        );
-      }
-
-      if( rbuIsVacuum(p)==0 && pIter->abIndexed ){
-        const char *zRbuRowid = "";
-        if( pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE ){
-          zRbuRowid = ", rbu_rowid";
-        }
-
-        /* Create the rbu_tmp_xxx table and the triggers to populate it. */
-        rbuMPrintfExec(p, p->dbRbu,
-            "CREATE TABLE IF NOT EXISTS %s.'rbu_tmp_%q' AS "
-            "SELECT *%s FROM '%q' WHERE 0;"
-            , p->zStateDb, pIter->zDataTbl
-            , (pIter->eType==RBU_PK_EXTERNAL ? ", 0 AS rbu_rowid" : "")
-            , pIter->zDataTbl
-        );
-
-        rbuMPrintfExec(p, p->dbMain,
-            "CREATE TEMP TRIGGER rbu_delete_tr BEFORE DELETE ON \"%s%w\" "
-            "BEGIN "
-            "  SELECT rbu_tmp_insert(3, %s);"
-            "END;"
-
-            "CREATE TEMP TRIGGER rbu_update1_tr BEFORE UPDATE ON \"%s%w\" "
-            "BEGIN "
-            "  SELECT rbu_tmp_insert(3, %s);"
-            "END;"
-
-            "CREATE TEMP TRIGGER rbu_update2_tr AFTER UPDATE ON \"%s%w\" "
-            "BEGIN "
-            "  SELECT rbu_tmp_insert(4, %s);"
-            "END;",
-            zWrite, zTbl, zOldlist,
-            zWrite, zTbl, zOldlist,
-            zWrite, zTbl, zNewlist
-        );
-
-        if( pIter->eType==RBU_PK_EXTERNAL || pIter->eType==RBU_PK_NONE ){
-          rbuMPrintfExec(p, p->dbMain,
-              "CREATE TEMP TRIGGER rbu_insert_tr AFTER INSERT ON \"%s%w\" "
-              "BEGIN "
-              "  SELECT rbu_tmp_insert(0, %s);"
-              "END;",
-              zWrite, zTbl, zNewlist
-          );
-        }
-
-        rbuObjIterPrepareTmpInsert(p, pIter, zCollist, zRbuRowid);
-      }
-
-      /* Create the SELECT statement to read keys from data_xxx */
-      if( p->rc==SQLITE_OK ){
-        const char *zRbuRowid = "";
-        char *zStart = 0;
-        char *zOrder = 0;
-        if( bRbuRowid ){
-          zRbuRowid = rbuIsVacuum(p) ? ",_rowid_ " : ",rbu_rowid";
-        }
-
-        if( rbuIsVacuum(p) ){
-          if( nOffset ){
-            zStart = rbuVacuumTableStart(p, pIter, bRbuRowid, zWrite);
-            if( zStart ){
-              tdsqlite3_free(zLimit);
-              zLimit = 0;
-            }
-          }
-          if( bRbuRowid ){
-            zOrder = rbuMPrintf(p, "_rowid_");
-          }else{
-            zOrder = rbuObjIterGetPkList(p, pIter, "", ", ", "");
-          }
-        }
-
-        if( p->rc==SQLITE_OK ){
-          p->rc = prepareFreeAndCollectError(p->dbRbu, &pIter->pSelect, pz,
-              tdsqlite3_mprintf(
-                "SELECT %s,%s rbu_control%s FROM '%q'%s %s %s %s",
-                zCollist, 
-                (rbuIsVacuum(p) ? "0 AS " : ""),
-                zRbuRowid,
-                pIter->zDataTbl, (zStart ? zStart : ""), 
-                (zOrder ? "ORDER BY" : ""), zOrder,
-                zLimit
-              )
-          );
-        }
-        tdsqlite3_free(zStart);
-        tdsqlite3_free(zOrder);
-      }
-
-      tdsqlite3_free(zWhere);
-      tdsqlite3_free(zOldlist);
-      tdsqlite3_free(zNewlist);
-      tdsqlite3_free(zBindings);
-    }
-    tdsqlite3_free(zCollist);
-    tdsqlite3_free(zLimit);
-  }
-  
-  return p->rc;
-}
-
-/*
-** Set output variable *ppStmt to point to an UPDATE statement that may
-** be used to update the imposter table for the main table b-tree of the
-** table object that pIter currently points to, assuming that the 
-** rbu_control column of the data_xyz table contains zMask.
-** 
-** If the zMask string does not specify any columns to update, then this
-** is not an error. Output variable *ppStmt is set to NULL in this case.
-*/
-static int rbuGetUpdateStmt(
-  tdsqlite3rbu *p,                  /* RBU handle */
-  RbuObjIter *pIter,              /* Object iterator */
-  const char *zMask,              /* rbu_control value ('x.x.') */
-  tdsqlite3_stmt **ppStmt           /* OUT: UPDATE statement handle */
-){
-  RbuUpdateStmt **pp;
-  RbuUpdateStmt *pUp = 0;
-  int nUp = 0;
-
-  /* In case an error occurs */
-  *ppStmt = 0;
-
-  /* Search for an existing statement. If one is found, shift it to the front
-  ** of the LRU queue and return immediately. Otherwise, leave nUp pointing
-  ** to the number of statements currently in the cache and pUp to the
-  ** last object in the list.  */
-  for(pp=&pIter->pRbuUpdate; *pp; pp=&((*pp)->pNext)){
-    pUp = *pp;
-    if( strcmp(pUp->zMask, zMask)==0 ){
-      *pp = pUp->pNext;
-      pUp->pNext = pIter->pRbuUpdate;
-      pIter->pRbuUpdate = pUp;
-      *ppStmt = pUp->pUpdate; 
-      return SQLITE_OK;
-    }
-    nUp++;
-  }
-  assert( pUp==0 || pUp->pNext==0 );
-
-  if( nUp>=SQLITE_RBU_UPDATE_CACHESIZE ){
-    for(pp=&pIter->pRbuUpdate; *pp!=pUp; pp=&((*pp)->pNext));
-    *pp = 0;
-    tdsqlite3_finalize(pUp->pUpdate);
-    pUp->pUpdate = 0;
-  }else{
-    pUp = (RbuUpdateStmt*)rbuMalloc(p, sizeof(RbuUpdateStmt)+pIter->nTblCol+1);
-  }
-
-  if( pUp ){
-    char *zWhere = rbuObjIterGetWhere(p, pIter);
-    char *zSet = rbuObjIterGetSetlist(p, pIter, zMask);
-    char *zUpdate = 0;
-
-    pUp->zMask = (char*)&pUp[1];
-    memcpy(pUp->zMask, zMask, pIter->nTblCol);
-    pUp->pNext = pIter->pRbuUpdate;
-    pIter->pRbuUpdate = pUp;
-
-    if( zSet ){
-      const char *zPrefix = "";
-
-      if( pIter->eType!=RBU_PK_VTAB ) zPrefix = "rbu_imp_";
-      zUpdate = tdsqlite3_mprintf("UPDATE \"%s%w\" SET %s WHERE %s", 
-          zPrefix, pIter->zTbl, zSet, zWhere
-      );
-      p->rc = prepareFreeAndCollectError(
-          p->dbMain, &pUp->pUpdate, &p->zErrmsg, zUpdate
-      );
-      *ppStmt = pUp->pUpdate;
-    }
-    tdsqlite3_free(zWhere);
-    tdsqlite3_free(zSet);
-  }
-
-  return p->rc;
-}
-
-static tdsqlite3 *rbuOpenDbhandle(
-  tdsqlite3rbu *p, 
-  const char *zName, 
-  int bUseVfs
-){
-  tdsqlite3 *db = 0;
-  if( p->rc==SQLITE_OK ){
-    const int flags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_URI;
-    p->rc = tdsqlite3_open_v2(zName, &db, flags, bUseVfs ? p->zVfsName : 0);
-    if( p->rc ){
-      p->zErrmsg = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(db));
-      tdsqlite3_close(db);
-      db = 0;
-    }
-  }
-  return db;
-}
-
-/*
-** Free an RbuState object allocated by rbuLoadState().
-*/
-static void rbuFreeState(RbuState *p){
-  if( p ){
-    tdsqlite3_free(p->zTbl);
-    tdsqlite3_free(p->zDataTbl);
-    tdsqlite3_free(p->zIdx);
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** Allocate an RbuState object and load the contents of the rbu_state 
-** table into it. Return a pointer to the new object. It is the 
-** responsibility of the caller to eventually free the object using
-** tdsqlite3_free().
-**
-** If an error occurs, leave an error code and message in the rbu handle
-** and return NULL.
-*/
-static RbuState *rbuLoadState(tdsqlite3rbu *p){
-  RbuState *pRet = 0;
-  tdsqlite3_stmt *pStmt = 0;
-  int rc;
-  int rc2;
-
-  pRet = (RbuState*)rbuMalloc(p, sizeof(RbuState));
-  if( pRet==0 ) return 0;
-
-  rc = prepareFreeAndCollectError(p->dbRbu, &pStmt, &p->zErrmsg, 
-      tdsqlite3_mprintf("SELECT k, v FROM %s.rbu_state", p->zStateDb)
-  );
-  while( rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pStmt) ){
-    switch( tdsqlite3_column_int(pStmt, 0) ){
-      case RBU_STATE_STAGE:
-        pRet->eStage = tdsqlite3_column_int(pStmt, 1);
-        if( pRet->eStage!=RBU_STAGE_OAL
-         && pRet->eStage!=RBU_STAGE_MOVE
-         && pRet->eStage!=RBU_STAGE_CKPT
-        ){
-          p->rc = SQLITE_CORRUPT;
-        }
-        break;
-
-      case RBU_STATE_TBL:
-        pRet->zTbl = rbuStrndup((char*)tdsqlite3_column_text(pStmt, 1), &rc);
-        break;
-
-      case RBU_STATE_IDX:
-        pRet->zIdx = rbuStrndup((char*)tdsqlite3_column_text(pStmt, 1), &rc);
-        break;
-
-      case RBU_STATE_ROW:
-        pRet->nRow = tdsqlite3_column_int(pStmt, 1);
-        break;
-
-      case RBU_STATE_PROGRESS:
-        pRet->nProgress = tdsqlite3_column_int64(pStmt, 1);
-        break;
-
-      case RBU_STATE_CKPT:
-        pRet->iWalCksum = tdsqlite3_column_int64(pStmt, 1);
-        break;
-
-      case RBU_STATE_COOKIE:
-        pRet->iCookie = (u32)tdsqlite3_column_int64(pStmt, 1);
-        break;
-
-      case RBU_STATE_OALSZ:
-        pRet->iOalSz = (u32)tdsqlite3_column_int64(pStmt, 1);
-        break;
-
-      case RBU_STATE_PHASEONESTEP:
-        pRet->nPhaseOneStep = tdsqlite3_column_int64(pStmt, 1);
-        break;
-
-      case RBU_STATE_DATATBL:
-        pRet->zDataTbl = rbuStrndup((char*)tdsqlite3_column_text(pStmt, 1), &rc);
-        break;
-
-      default:
-        rc = SQLITE_CORRUPT;
-        break;
-    }
-  }
-  rc2 = tdsqlite3_finalize(pStmt);
-  if( rc==SQLITE_OK ) rc = rc2;
-
-  p->rc = rc;
-  return pRet;
-}
-
-
-/*
-** Open the database handle and attach the RBU database as "rbu". If an
-** error occurs, leave an error code and message in the RBU handle.
-*/
-static void rbuOpenDatabase(tdsqlite3rbu *p, int *pbRetry){
-  assert( p->rc || (p->dbMain==0 && p->dbRbu==0) );
-  assert( p->rc || rbuIsVacuum(p) || p->zTarget!=0 );
-
-  /* Open the RBU database */
-  p->dbRbu = rbuOpenDbhandle(p, p->zRbu, 1);
-
-  if( p->rc==SQLITE_OK && rbuIsVacuum(p) ){
-    tdsqlite3_file_control(p->dbRbu, "main", SQLITE_FCNTL_RBUCNT, (void*)p);
-    if( p->zState==0 ){
-      const char *zFile = tdsqlite3_db_filename(p->dbRbu, "main");
-      p->zState = rbuMPrintf(p, "file://%s-vacuum?modeof=%s", zFile, zFile);
-    }
-  }
-
-  /* If using separate RBU and state databases, attach the state database to
-  ** the RBU db handle now.  */
-  if( p->zState ){
-    rbuMPrintfExec(p, p->dbRbu, "ATTACH %Q AS stat", p->zState);
-    memcpy(p->zStateDb, "stat", 4);
-  }else{
-    memcpy(p->zStateDb, "main", 4);
-  }
-
-#if 0
-  if( p->rc==SQLITE_OK && rbuIsVacuum(p) ){
-    p->rc = tdsqlite3_exec(p->dbRbu, "BEGIN", 0, 0, 0);
-  }
-#endif
-
-  /* If it has not already been created, create the rbu_state table */
-  rbuMPrintfExec(p, p->dbRbu, RBU_CREATE_STATE, p->zStateDb);
-
-#if 0
-  if( rbuIsVacuum(p) ){
-    if( p->rc==SQLITE_OK ){
-      int rc2;
-      int bOk = 0;
-      tdsqlite3_stmt *pCnt = 0;
-      p->rc = prepareAndCollectError(p->dbRbu, &pCnt, &p->zErrmsg,
-          "SELECT count(*) FROM stat.sqlite_master"
-      );
-      if( p->rc==SQLITE_OK 
-       && tdsqlite3_step(pCnt)==SQLITE_ROW
-       && 1==tdsqlite3_column_int(pCnt, 0)
-      ){
-        bOk = 1;
-      }
-      rc2 = tdsqlite3_finalize(pCnt);
-      if( p->rc==SQLITE_OK ) p->rc = rc2;
-
-      if( p->rc==SQLITE_OK && bOk==0 ){
-        p->rc = SQLITE_ERROR;
-        p->zErrmsg = tdsqlite3_mprintf("invalid state database");
-      }
-    
-      if( p->rc==SQLITE_OK ){
-        p->rc = tdsqlite3_exec(p->dbRbu, "COMMIT", 0, 0, 0);
-      }
-    }
-  }
-#endif
-
-  if( p->rc==SQLITE_OK && rbuIsVacuum(p) ){
-    int bOpen = 0;
-    int rc;
-    p->nRbu = 0;
-    p->pRbuFd = 0;
-    rc = tdsqlite3_file_control(p->dbRbu, "main", SQLITE_FCNTL_RBUCNT, (void*)p);
-    if( rc!=SQLITE_NOTFOUND ) p->rc = rc;
-    if( p->eStage>=RBU_STAGE_MOVE ){
-      bOpen = 1;
-    }else{
-      RbuState *pState = rbuLoadState(p);
-      if( pState ){
-        bOpen = (pState->eStage>=RBU_STAGE_MOVE);
-        rbuFreeState(pState);
-      }
-    }
-    if( bOpen ) p->dbMain = rbuOpenDbhandle(p, p->zRbu, p->nRbu<=1);
-  }
-
-  p->eStage = 0;
-  if( p->rc==SQLITE_OK && p->dbMain==0 ){
-    if( !rbuIsVacuum(p) ){
-      p->dbMain = rbuOpenDbhandle(p, p->zTarget, 1);
-    }else if( p->pRbuFd->pWalFd ){
-      if( pbRetry ){
-        p->pRbuFd->bNolock = 0;
-        tdsqlite3_close(p->dbRbu);
-        tdsqlite3_close(p->dbMain);
-        p->dbMain = 0;
-        p->dbRbu = 0;
-        *pbRetry = 1;
-        return;
-      }
-      p->rc = SQLITE_ERROR;
-      p->zErrmsg = tdsqlite3_mprintf("cannot vacuum wal mode database");
-    }else{
-      char *zTarget;
-      char *zExtra = 0;
-      if( strlen(p->zRbu)>=5 && 0==memcmp("file:", p->zRbu, 5) ){
-        zExtra = &p->zRbu[5];
-        while( *zExtra ){
-          if( *zExtra++=='?' ) break;
-        }
-        if( *zExtra=='\0' ) zExtra = 0;
-      }
-
-      zTarget = tdsqlite3_mprintf("file:%s-vactmp?rbu_memory=1%s%s", 
-          tdsqlite3_db_filename(p->dbRbu, "main"),
-          (zExtra==0 ? "" : "&"), (zExtra==0 ? "" : zExtra)
-      );
-
-      if( zTarget==0 ){
-        p->rc = SQLITE_NOMEM;
-        return;
-      }
-      p->dbMain = rbuOpenDbhandle(p, zTarget, p->nRbu<=1);
-      tdsqlite3_free(zTarget);
-    }
-  }
-
-  if( p->rc==SQLITE_OK ){
-    p->rc = tdsqlite3_create_function(p->dbMain, 
-        "rbu_tmp_insert", -1, SQLITE_UTF8, (void*)p, rbuTmpInsertFunc, 0, 0
-    );
-  }
-
-  if( p->rc==SQLITE_OK ){
-    p->rc = tdsqlite3_create_function(p->dbMain, 
-        "rbu_fossil_delta", 2, SQLITE_UTF8, 0, rbuFossilDeltaFunc, 0, 0
-    );
-  }
-
-  if( p->rc==SQLITE_OK ){
-    p->rc = tdsqlite3_create_function(p->dbRbu, 
-        "rbu_target_name", -1, SQLITE_UTF8, (void*)p, rbuTargetNameFunc, 0, 0
-    );
-  }
-
-  if( p->rc==SQLITE_OK ){
-    p->rc = tdsqlite3_file_control(p->dbMain, "main", SQLITE_FCNTL_RBU, (void*)p);
-  }
-  rbuMPrintfExec(p, p->dbMain, "SELECT * FROM sqlite_master");
-
-  /* Mark the database file just opened as an RBU target database. If 
-  ** this call returns SQLITE_NOTFOUND, then the RBU vfs is not in use.
-  ** This is an error.  */
-  if( p->rc==SQLITE_OK ){
-    p->rc = tdsqlite3_file_control(p->dbMain, "main", SQLITE_FCNTL_RBU, (void*)p);
-  }
-
-  if( p->rc==SQLITE_NOTFOUND ){
-    p->rc = SQLITE_ERROR;
-    p->zErrmsg = tdsqlite3_mprintf("rbu vfs not found");
-  }
-}
-
-/*
-** This routine is a copy of the tdsqlite3FileSuffix3() routine from the core.
-** It is a no-op unless SQLITE_ENABLE_8_3_NAMES is defined.
-**
-** If SQLITE_ENABLE_8_3_NAMES is set at compile-time and if the database
-** filename in zBaseFilename is a URI with the "8_3_names=1" parameter and
-** if filename in z[] has a suffix (a.k.a. "extension") that is longer than
-** three characters, then shorten the suffix on z[] to be the last three
-** characters of the original suffix.
-**
-** If SQLITE_ENABLE_8_3_NAMES is set to 2 at compile-time, then always
-** do the suffix shortening regardless of URI parameter.
-**
-** Examples:
-**
-**     test.db-journal    =>   test.nal
-**     test.db-wal        =>   test.wal
-**     test.db-shm        =>   test.shm
-**     test.db-mj7f3319fa =>   test.9fa
-*/
-static void rbuFileSuffix3(const char *zBase, char *z){
-#ifdef SQLITE_ENABLE_8_3_NAMES
-#if SQLITE_ENABLE_8_3_NAMES<2
-  if( tdsqlite3_uri_boolean(zBase, "8_3_names", 0) )
-#endif
-  {
-    int i, sz;
-    sz = (int)strlen(z)&0xffffff;
-    for(i=sz-1; i>0 && z[i]!='/' && z[i]!='.'; i--){}
-    if( z[i]=='.' && sz>i+4 ) memmove(&z[i+1], &z[sz-3], 4);
-  }
-#endif
-}
-
-/*
-** Return the current wal-index header checksum for the target database 
-** as a 64-bit integer.
-**
-** The checksum is store in the first page of xShmMap memory as an 8-byte 
-** blob starting at byte offset 40.
-*/
-static i64 rbuShmChecksum(tdsqlite3rbu *p){
-  i64 iRet = 0;
-  if( p->rc==SQLITE_OK ){
-    tdsqlite3_file *pDb = p->pTargetFd->pReal;
-    u32 volatile *ptr;
-    p->rc = pDb->pMethods->xShmMap(pDb, 0, 32*1024, 0, (void volatile**)&ptr);
-    if( p->rc==SQLITE_OK ){
-      iRet = ((i64)ptr[10] << 32) + ptr[11];
-    }
-  }
-  return iRet;
-}
-
-/*
-** This function is called as part of initializing or reinitializing an
-** incremental checkpoint. 
-**
-** It populates the tdsqlite3rbu.aFrame[] array with the set of 
-** (wal frame -> db page) copy operations required to checkpoint the 
-** current wal file, and obtains the set of shm locks required to safely 
-** perform the copy operations directly on the file-system.
-**
-** If argument pState is not NULL, then the incremental checkpoint is
-** being resumed. In this case, if the checksum of the wal-index-header
-** following recovery is not the same as the checksum saved in the RbuState
-** object, then the rbu handle is set to DONE state. This occurs if some
-** other client appends a transaction to the wal file in the middle of
-** an incremental checkpoint.
-*/
-static void rbuSetupCheckpoint(tdsqlite3rbu *p, RbuState *pState){
-
-  /* If pState is NULL, then the wal file may not have been opened and
-  ** recovered. Running a read-statement here to ensure that doing so
-  ** does not interfere with the "capture" process below.  */
-  if( pState==0 ){
-    p->eStage = 0;
-    if( p->rc==SQLITE_OK ){
-      p->rc = tdsqlite3_exec(p->dbMain, "SELECT * FROM sqlite_master", 0, 0, 0);
-    }
-  }
-
-  /* Assuming no error has occurred, run a "restart" checkpoint with the
-  ** tdsqlite3rbu.eStage variable set to CAPTURE. This turns on the following
-  ** special behaviour in the rbu VFS:
-  **
-  **   * If the exclusive shm WRITER or READ0 lock cannot be obtained,
-  **     the checkpoint fails with SQLITE_BUSY (normally SQLite would
-  **     proceed with running a passive checkpoint instead of failing).
-  **
-  **   * Attempts to read from the *-wal file or write to the database file
-  **     do not perform any IO. Instead, the frame/page combinations that
-  **     would be read/written are recorded in the tdsqlite3rbu.aFrame[]
-  **     array.
-  **
-  **   * Calls to xShmLock(UNLOCK) to release the exclusive shm WRITER, 
-  **     READ0 and CHECKPOINT locks taken as part of the checkpoint are
-  **     no-ops. These locks will not be released until the connection
-  **     is closed.
-  **
-  **   * Attempting to xSync() the database file causes an SQLITE_INTERNAL 
-  **     error.
-  **
-  ** As a result, unless an error (i.e. OOM or SQLITE_BUSY) occurs, the
-  ** checkpoint below fails with SQLITE_INTERNAL, and leaves the aFrame[]
-  ** array populated with a set of (frame -> page) mappings. Because the 
-  ** WRITER, CHECKPOINT and READ0 locks are still held, it is safe to copy 
-  ** data from the wal file into the database file according to the 
-  ** contents of aFrame[].
-  */
-  if( p->rc==SQLITE_OK ){
-    int rc2;
-    p->eStage = RBU_STAGE_CAPTURE;
-    rc2 = tdsqlite3_exec(p->dbMain, "PRAGMA main.wal_checkpoint=restart", 0, 0,0);
-    if( rc2!=SQLITE_INTERNAL ) p->rc = rc2;
-  }
-
-  if( p->rc==SQLITE_OK && p->nFrame>0 ){
-    p->eStage = RBU_STAGE_CKPT;
-    p->nStep = (pState ? pState->nRow : 0);
-    p->aBuf = rbuMalloc(p, p->pgsz);
-    p->iWalCksum = rbuShmChecksum(p);
-  }
-
-  if( p->rc==SQLITE_OK ){
-    if( p->nFrame==0 || (pState && pState->iWalCksum!=p->iWalCksum) ){
-      p->rc = SQLITE_DONE;
-      p->eStage = RBU_STAGE_DONE;
-    }else{
-      int nSectorSize;
-      tdsqlite3_file *pDb = p->pTargetFd->pReal;
-      tdsqlite3_file *pWal = p->pTargetFd->pWalFd->pReal;
-      assert( p->nPagePerSector==0 );
-      nSectorSize = pDb->pMethods->xSectorSize(pDb);
-      if( nSectorSize>p->pgsz ){
-        p->nPagePerSector = nSectorSize / p->pgsz;
-      }else{
-        p->nPagePerSector = 1;
-      }
-
-      /* Call xSync() on the wal file. This causes SQLite to sync the 
-      ** directory in which the target database and the wal file reside, in 
-      ** case it has not been synced since the rename() call in 
-      ** rbuMoveOalFile(). */
-      p->rc = pWal->pMethods->xSync(pWal, SQLITE_SYNC_NORMAL);
-    }
-  }
-}
-
-/*
-** Called when iAmt bytes are read from offset iOff of the wal file while
-** the rbu object is in capture mode. Record the frame number of the frame
-** being read in the aFrame[] array.
-*/
-static int rbuCaptureWalRead(tdsqlite3rbu *pRbu, i64 iOff, int iAmt){
-  const u32 mReq = (1<<WAL_LOCK_WRITE)|(1<<WAL_LOCK_CKPT)|(1<<WAL_LOCK_READ0);
-  u32 iFrame;
-
-  if( pRbu->mLock!=mReq ){
-    pRbu->rc = SQLITE_BUSY;
-    return SQLITE_INTERNAL;
-  }
-
-  pRbu->pgsz = iAmt;
-  if( pRbu->nFrame==pRbu->nFrameAlloc ){
-    int nNew = (pRbu->nFrameAlloc ? pRbu->nFrameAlloc : 64) * 2;
-    RbuFrame *aNew;
-    aNew = (RbuFrame*)tdsqlite3_realloc64(pRbu->aFrame, nNew * sizeof(RbuFrame));
-    if( aNew==0 ) return SQLITE_NOMEM;
-    pRbu->aFrame = aNew;
-    pRbu->nFrameAlloc = nNew;
-  }
-
-  iFrame = (u32)((iOff-32) / (i64)(iAmt+24)) + 1;
-  if( pRbu->iMaxFrame<iFrame ) pRbu->iMaxFrame = iFrame;
-  pRbu->aFrame[pRbu->nFrame].iWalFrame = iFrame;
-  pRbu->aFrame[pRbu->nFrame].iDbPage = 0;
-  pRbu->nFrame++;
-  return SQLITE_OK;
-}
-
-/*
-** Called when a page of data is written to offset iOff of the database
-** file while the rbu handle is in capture mode. Record the page number 
-** of the page being written in the aFrame[] array.
-*/
-static int rbuCaptureDbWrite(tdsqlite3rbu *pRbu, i64 iOff){
-  pRbu->aFrame[pRbu->nFrame-1].iDbPage = (u32)(iOff / pRbu->pgsz) + 1;
-  return SQLITE_OK;
-}
-
-/*
-** This is called as part of an incremental checkpoint operation. Copy
-** a single frame of data from the wal file into the database file, as
-** indicated by the RbuFrame object.
-*/
-static void rbuCheckpointFrame(tdsqlite3rbu *p, RbuFrame *pFrame){
-  tdsqlite3_file *pWal = p->pTargetFd->pWalFd->pReal;
-  tdsqlite3_file *pDb = p->pTargetFd->pReal;
-  i64 iOff;
-
-  assert( p->rc==SQLITE_OK );
-  iOff = (i64)(pFrame->iWalFrame-1) * (p->pgsz + 24) + 32 + 24;
-  p->rc = pWal->pMethods->xRead(pWal, p->aBuf, p->pgsz, iOff);
-  if( p->rc ) return;
-
-  iOff = (i64)(pFrame->iDbPage-1) * p->pgsz;
-  p->rc = pDb->pMethods->xWrite(pDb, p->aBuf, p->pgsz, iOff);
-}
-
-
-/*
-** Take an EXCLUSIVE lock on the database file.
-*/
-static void rbuLockDatabase(tdsqlite3rbu *p){
-  tdsqlite3_file *pReal = p->pTargetFd->pReal;
-  assert( p->rc==SQLITE_OK );
-  p->rc = pReal->pMethods->xLock(pReal, SQLITE_LOCK_SHARED);
-  if( p->rc==SQLITE_OK ){
-    p->rc = pReal->pMethods->xLock(pReal, SQLITE_LOCK_EXCLUSIVE);
-  }
-}
-
-#if defined(_WIN32_WCE)
-static LPWSTR rbuWinUtf8ToUnicode(const char *zFilename){
-  int nChar;
-  LPWSTR zWideFilename;
-
-  nChar = MultiByteToWideChar(CP_UTF8, 0, zFilename, -1, NULL, 0);
-  if( nChar==0 ){
-    return 0;
-  }
-  zWideFilename = tdsqlite3_malloc64( nChar*sizeof(zWideFilename[0]) );
-  if( zWideFilename==0 ){
-    return 0;
-  }
-  memset(zWideFilename, 0, nChar*sizeof(zWideFilename[0]));
-  nChar = MultiByteToWideChar(CP_UTF8, 0, zFilename, -1, zWideFilename,
-                                nChar);
-  if( nChar==0 ){
-    tdsqlite3_free(zWideFilename);
-    zWideFilename = 0;
-  }
-  return zWideFilename;
-}
-#endif
-
-/*
-** The RBU handle is currently in RBU_STAGE_OAL state, with a SHARED lock
-** on the database file. This proc moves the *-oal file to the *-wal path,
-** then reopens the database file (this time in vanilla, non-oal, WAL mode).
-** If an error occurs, leave an error code and error message in the rbu 
-** handle.
-*/
-static void rbuMoveOalFile(tdsqlite3rbu *p){
-  const char *zBase = tdsqlite3_db_filename(p->dbMain, "main");
-  const char *zMove = zBase;
-  char *zOal;
-  char *zWal;
-
-  if( rbuIsVacuum(p) ){
-    zMove = tdsqlite3_db_filename(p->dbRbu, "main");
-  }
-  zOal = tdsqlite3_mprintf("%s-oal", zMove);
-  zWal = tdsqlite3_mprintf("%s-wal", zMove);
-
-  assert( p->eStage==RBU_STAGE_MOVE );
-  assert( p->rc==SQLITE_OK && p->zErrmsg==0 );
-  if( zWal==0 || zOal==0 ){
-    p->rc = SQLITE_NOMEM;
-  }else{
-    /* Move the *-oal file to *-wal. At this point connection p->db is
-    ** holding a SHARED lock on the target database file (because it is
-    ** in WAL mode). So no other connection may be writing the db. 
-    **
-    ** In order to ensure that there are no database readers, an EXCLUSIVE
-    ** lock is obtained here before the *-oal is moved to *-wal.
-    */
-    rbuLockDatabase(p);
-    if( p->rc==SQLITE_OK ){
-      rbuFileSuffix3(zBase, zWal);
-      rbuFileSuffix3(zBase, zOal);
-
-      /* Re-open the databases. */
-      rbuObjIterFinalize(&p->objiter);
-      tdsqlite3_close(p->dbRbu);
-      tdsqlite3_close(p->dbMain);
-      p->dbMain = 0;
-      p->dbRbu = 0;
-
-#if defined(_WIN32_WCE)
-      {
-        LPWSTR zWideOal;
-        LPWSTR zWideWal;
-
-        zWideOal = rbuWinUtf8ToUnicode(zOal);
-        if( zWideOal ){
-          zWideWal = rbuWinUtf8ToUnicode(zWal);
-          if( zWideWal ){
-            if( MoveFileW(zWideOal, zWideWal) ){
-              p->rc = SQLITE_OK;
-            }else{
-              p->rc = SQLITE_IOERR;
-            }
-            tdsqlite3_free(zWideWal);
-          }else{
-            p->rc = SQLITE_IOERR_NOMEM;
-          }
-          tdsqlite3_free(zWideOal);
-        }else{
-          p->rc = SQLITE_IOERR_NOMEM;
-        }
-      }
-#else
-      p->rc = rename(zOal, zWal) ? SQLITE_IOERR : SQLITE_OK;
-#endif
-
-      if( p->rc==SQLITE_OK ){
-        rbuOpenDatabase(p, 0);
-        rbuSetupCheckpoint(p, 0);
-      }
-    }
-  }
-
-  tdsqlite3_free(zWal);
-  tdsqlite3_free(zOal);
-}
-
-/*
-** The SELECT statement iterating through the keys for the current object
-** (p->objiter.pSelect) currently points to a valid row. This function
-** determines the type of operation requested by this row and returns
-** one of the following values to indicate the result:
-**
-**     * RBU_INSERT
-**     * RBU_DELETE
-**     * RBU_IDX_DELETE
-**     * RBU_UPDATE
-**
-** If RBU_UPDATE is returned, then output variable *pzMask is set to
-** point to the text value indicating the columns to update.
-**
-** If the rbu_control field contains an invalid value, an error code and
-** message are left in the RBU handle and zero returned.
-*/
-static int rbuStepType(tdsqlite3rbu *p, const char **pzMask){
-  int iCol = p->objiter.nCol;     /* Index of rbu_control column */
-  int res = 0;                    /* Return value */
-
-  switch( tdsqlite3_column_type(p->objiter.pSelect, iCol) ){
-    case SQLITE_INTEGER: {
-      int iVal = tdsqlite3_column_int(p->objiter.pSelect, iCol);
-      switch( iVal ){
-        case 0: res = RBU_INSERT;     break;
-        case 1: res = RBU_DELETE;     break;
-        case 2: res = RBU_REPLACE;    break;
-        case 3: res = RBU_IDX_DELETE; break;
-        case 4: res = RBU_IDX_INSERT; break;
-      }
-      break;
-    }
-
-    case SQLITE_TEXT: {
-      const unsigned char *z = tdsqlite3_column_text(p->objiter.pSelect, iCol);
-      if( z==0 ){
-        p->rc = SQLITE_NOMEM;
-      }else{
-        *pzMask = (const char*)z;
-      }
-      res = RBU_UPDATE;
-
-      break;
-    }
-
-    default:
-      break;
-  }
-
-  if( res==0 ){
-    rbuBadControlError(p);
-  }
-  return res;
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** Assert that column iCol of statement pStmt is named zName.
-*/
-static void assertColumnName(tdsqlite3_stmt *pStmt, int iCol, const char *zName){
-  const char *zCol = tdsqlite3_column_name(pStmt, iCol);
-  assert( 0==tdsqlite3_stricmp(zName, zCol) );
-}
-#else
-# define assertColumnName(x,y,z)
-#endif
-
-/*
-** Argument eType must be one of RBU_INSERT, RBU_DELETE, RBU_IDX_INSERT or
-** RBU_IDX_DELETE. This function performs the work of a single
-** tdsqlite3rbu_step() call for the type of operation specified by eType.
-*/
-static void rbuStepOneOp(tdsqlite3rbu *p, int eType){
-  RbuObjIter *pIter = &p->objiter;
-  tdsqlite3_value *pVal;
-  tdsqlite3_stmt *pWriter;
-  int i;
-
-  assert( p->rc==SQLITE_OK );
-  assert( eType!=RBU_DELETE || pIter->zIdx==0 );
-  assert( eType==RBU_DELETE || eType==RBU_IDX_DELETE
-       || eType==RBU_INSERT || eType==RBU_IDX_INSERT
-  );
-
-  /* If this is a delete, decrement nPhaseOneStep by nIndex. If the DELETE
-  ** statement below does actually delete a row, nPhaseOneStep will be
-  ** incremented by the same amount when SQL function rbu_tmp_insert()
-  ** is invoked by the trigger.  */
-  if( eType==RBU_DELETE ){
-    p->nPhaseOneStep -= p->objiter.nIndex;
-  }
-
-  if( eType==RBU_IDX_DELETE || eType==RBU_DELETE ){
-    pWriter = pIter->pDelete;
-  }else{
-    pWriter = pIter->pInsert;
-  }
-
-  for(i=0; i<pIter->nCol; i++){
-    /* If this is an INSERT into a table b-tree and the table has an
-    ** explicit INTEGER PRIMARY KEY, check that this is not an attempt
-    ** to write a NULL into the IPK column. That is not permitted.  */
-    if( eType==RBU_INSERT 
-     && pIter->zIdx==0 && pIter->eType==RBU_PK_IPK && pIter->abTblPk[i] 
-     && tdsqlite3_column_type(pIter->pSelect, i)==SQLITE_NULL
-    ){
-      p->rc = SQLITE_MISMATCH;
-      p->zErrmsg = tdsqlite3_mprintf("datatype mismatch");
-      return;
-    }
-
-    if( eType==RBU_DELETE && pIter->abTblPk[i]==0 ){
-      continue;
-    }
-
-    pVal = tdsqlite3_column_value(pIter->pSelect, i);
-    p->rc = tdsqlite3_bind_value(pWriter, i+1, pVal);
-    if( p->rc ) return;
-  }
-  if( pIter->zIdx==0 ){
-    if( pIter->eType==RBU_PK_VTAB 
-     || pIter->eType==RBU_PK_NONE 
-     || (pIter->eType==RBU_PK_EXTERNAL && rbuIsVacuum(p)) 
-    ){
-      /* For a virtual table, or a table with no primary key, the 
-      ** SELECT statement is:
-      **
-      **   SELECT <cols>, rbu_control, rbu_rowid FROM ....
-      **
-      ** Hence column_value(pIter->nCol+1).
-      */
-      assertColumnName(pIter->pSelect, pIter->nCol+1, 
-          rbuIsVacuum(p) ? "rowid" : "rbu_rowid"
-      );
-      pVal = tdsqlite3_column_value(pIter->pSelect, pIter->nCol+1);
-      p->rc = tdsqlite3_bind_value(pWriter, pIter->nCol+1, pVal);
-    }
-  }
-  if( p->rc==SQLITE_OK ){
-    tdsqlite3_step(pWriter);
-    p->rc = resetAndCollectError(pWriter, &p->zErrmsg);
-  }
-}
-
-/*
-** This function does the work for an tdsqlite3rbu_step() call.
-**
-** The object-iterator (p->objiter) currently points to a valid object,
-** and the input cursor (p->objiter.pSelect) currently points to a valid
-** input row. Perform whatever processing is required and return.
-**
-** If no  error occurs, SQLITE_OK is returned. Otherwise, an error code
-** and message is left in the RBU handle and a copy of the error code
-** returned.
-*/
-static int rbuStep(tdsqlite3rbu *p){
-  RbuObjIter *pIter = &p->objiter;
-  const char *zMask = 0;
-  int eType = rbuStepType(p, &zMask);
-
-  if( eType ){
-    assert( eType==RBU_INSERT     || eType==RBU_DELETE
-         || eType==RBU_REPLACE    || eType==RBU_IDX_DELETE
-         || eType==RBU_IDX_INSERT || eType==RBU_UPDATE
-    );
-    assert( eType!=RBU_UPDATE || pIter->zIdx==0 );
-
-    if( pIter->zIdx==0 && (eType==RBU_IDX_DELETE || eType==RBU_IDX_INSERT) ){
-      rbuBadControlError(p);
-    }
-    else if( eType==RBU_REPLACE ){
-      if( pIter->zIdx==0 ){
-        p->nPhaseOneStep += p->objiter.nIndex;
-        rbuStepOneOp(p, RBU_DELETE);
-      }
-      if( p->rc==SQLITE_OK ) rbuStepOneOp(p, RBU_INSERT);
-    }
-    else if( eType!=RBU_UPDATE ){
-      rbuStepOneOp(p, eType);
-    }
-    else{
-      tdsqlite3_value *pVal;
-      tdsqlite3_stmt *pUpdate = 0;
-      assert( eType==RBU_UPDATE );
-      p->nPhaseOneStep -= p->objiter.nIndex;
-      rbuGetUpdateStmt(p, pIter, zMask, &pUpdate);
-      if( pUpdate ){
-        int i;
-        for(i=0; p->rc==SQLITE_OK && i<pIter->nCol; i++){
-          char c = zMask[pIter->aiSrcOrder[i]];
-          pVal = tdsqlite3_column_value(pIter->pSelect, i);
-          if( pIter->abTblPk[i] || c!='.' ){
-            p->rc = tdsqlite3_bind_value(pUpdate, i+1, pVal);
-          }
-        }
-        if( p->rc==SQLITE_OK 
-         && (pIter->eType==RBU_PK_VTAB || pIter->eType==RBU_PK_NONE) 
-        ){
-          /* Bind the rbu_rowid value to column _rowid_ */
-          assertColumnName(pIter->pSelect, pIter->nCol+1, "rbu_rowid");
-          pVal = tdsqlite3_column_value(pIter->pSelect, pIter->nCol+1);
-          p->rc = tdsqlite3_bind_value(pUpdate, pIter->nCol+1, pVal);
-        }
-        if( p->rc==SQLITE_OK ){
-          tdsqlite3_step(pUpdate);
-          p->rc = resetAndCollectError(pUpdate, &p->zErrmsg);
-        }
-      }
-    }
-  }
-  return p->rc;
-}
-
-/*
-** Increment the schema cookie of the main database opened by p->dbMain.
-**
-** Or, if this is an RBU vacuum, set the schema cookie of the main db
-** opened by p->dbMain to one more than the schema cookie of the main
-** db opened by p->dbRbu.
-*/
-static void rbuIncrSchemaCookie(tdsqlite3rbu *p){
-  if( p->rc==SQLITE_OK ){
-    tdsqlite3 *dbread = (rbuIsVacuum(p) ? p->dbRbu : p->dbMain);
-    int iCookie = 1000000;
-    tdsqlite3_stmt *pStmt;
-
-    p->rc = prepareAndCollectError(dbread, &pStmt, &p->zErrmsg, 
-        "PRAGMA schema_version"
-    );
-    if( p->rc==SQLITE_OK ){
-      /* Coverage: it may be that this tdsqlite3_step() cannot fail. There
-      ** is already a transaction open, so the prepared statement cannot
-      ** throw an SQLITE_SCHEMA exception. The only database page the
-      ** statement reads is page 1, which is guaranteed to be in the cache.
-      ** And no memory allocations are required.  */
-      if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-        iCookie = tdsqlite3_column_int(pStmt, 0);
-      }
-      rbuFinalize(p, pStmt);
-    }
-    if( p->rc==SQLITE_OK ){
-      rbuMPrintfExec(p, p->dbMain, "PRAGMA schema_version = %d", iCookie+1);
-    }
-  }
-}
-
-/*
-** Update the contents of the rbu_state table within the rbu database. The
-** value stored in the RBU_STATE_STAGE column is eStage. All other values
-** are determined by inspecting the rbu handle passed as the first argument.
-*/
-static void rbuSaveState(tdsqlite3rbu *p, int eStage){
-  if( p->rc==SQLITE_OK || p->rc==SQLITE_DONE ){
-    tdsqlite3_stmt *pInsert = 0;
-    rbu_file *pFd = (rbuIsVacuum(p) ? p->pRbuFd : p->pTargetFd);
-    int rc;
-
-    assert( p->zErrmsg==0 );
-    rc = prepareFreeAndCollectError(p->dbRbu, &pInsert, &p->zErrmsg, 
-        tdsqlite3_mprintf(
-          "INSERT OR REPLACE INTO %s.rbu_state(k, v) VALUES "
-          "(%d, %d), "
-          "(%d, %Q), "
-          "(%d, %Q), "
-          "(%d, %d), "
-          "(%d, %d), "
-          "(%d, %lld), "
-          "(%d, %lld), "
-          "(%d, %lld), "
-          "(%d, %lld), "
-          "(%d, %Q)  ",
-          p->zStateDb,
-          RBU_STATE_STAGE, eStage,
-          RBU_STATE_TBL, p->objiter.zTbl, 
-          RBU_STATE_IDX, p->objiter.zIdx, 
-          RBU_STATE_ROW, p->nStep, 
-          RBU_STATE_PROGRESS, p->nProgress,
-          RBU_STATE_CKPT, p->iWalCksum,
-          RBU_STATE_COOKIE, (i64)pFd->iCookie,
-          RBU_STATE_OALSZ, p->iOalSz,
-          RBU_STATE_PHASEONESTEP, p->nPhaseOneStep,
-          RBU_STATE_DATATBL, p->objiter.zDataTbl
-      )
-    );
-    assert( pInsert==0 || rc==SQLITE_OK );
-
-    if( rc==SQLITE_OK ){
-      tdsqlite3_step(pInsert);
-      rc = tdsqlite3_finalize(pInsert);
-    }
-    if( rc!=SQLITE_OK ) p->rc = rc;
-  }
-}
-
-
-/*
-** The second argument passed to this function is the name of a PRAGMA 
-** setting - "page_size", "auto_vacuum", "user_version" or "application_id".
-** This function executes the following on tdsqlite3rbu.dbRbu:
-**
-**   "PRAGMA main.$zPragma"
-**
-** where $zPragma is the string passed as the second argument, then
-** on tdsqlite3rbu.dbMain:
-**
-**   "PRAGMA main.$zPragma = $val"
-**
-** where $val is the value returned by the first PRAGMA invocation.
-**
-** In short, it copies the value  of the specified PRAGMA setting from
-** dbRbu to dbMain.
-*/
-static void rbuCopyPragma(tdsqlite3rbu *p, const char *zPragma){
-  if( p->rc==SQLITE_OK ){
-    tdsqlite3_stmt *pPragma = 0;
-    p->rc = prepareFreeAndCollectError(p->dbRbu, &pPragma, &p->zErrmsg, 
-        tdsqlite3_mprintf("PRAGMA main.%s", zPragma)
-    );
-    if( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pPragma) ){
-      p->rc = rbuMPrintfExec(p, p->dbMain, "PRAGMA main.%s = %d",
-          zPragma, tdsqlite3_column_int(pPragma, 0)
-      );
-    }
-    rbuFinalize(p, pPragma);
-  }
-}
-
-/*
-** The RBU handle passed as the only argument has just been opened and 
-** the state database is empty. If this RBU handle was opened for an
-** RBU vacuum operation, create the schema in the target db.
-*/
-static void rbuCreateTargetSchema(tdsqlite3rbu *p){
-  tdsqlite3_stmt *pSql = 0;
-  tdsqlite3_stmt *pInsert = 0;
-
-  assert( rbuIsVacuum(p) );
-  p->rc = tdsqlite3_exec(p->dbMain, "PRAGMA writable_schema=1", 0,0, &p->zErrmsg);
-  if( p->rc==SQLITE_OK ){
-    p->rc = prepareAndCollectError(p->dbRbu, &pSql, &p->zErrmsg, 
-      "SELECT sql FROM sqlite_master WHERE sql!='' AND rootpage!=0"
-      " AND name!='sqlite_sequence' "
-      " ORDER BY type DESC"
-    );
-  }
-
-  while( p->rc==SQLITE_OK && tdsqlite3_step(pSql)==SQLITE_ROW ){
-    const char *zSql = (const char*)tdsqlite3_column_text(pSql, 0);
-    p->rc = tdsqlite3_exec(p->dbMain, zSql, 0, 0, &p->zErrmsg);
-  }
-  rbuFinalize(p, pSql);
-  if( p->rc!=SQLITE_OK ) return;
-
-  if( p->rc==SQLITE_OK ){
-    p->rc = prepareAndCollectError(p->dbRbu, &pSql, &p->zErrmsg, 
-        "SELECT * FROM sqlite_master WHERE rootpage=0 OR rootpage IS NULL" 
-    );
-  }
-
-  if( p->rc==SQLITE_OK ){
-    p->rc = prepareAndCollectError(p->dbMain, &pInsert, &p->zErrmsg, 
-        "INSERT INTO sqlite_master VALUES(?,?,?,?,?)"
-    );
-  }
-
-  while( p->rc==SQLITE_OK && tdsqlite3_step(pSql)==SQLITE_ROW ){
-    int i;
-    for(i=0; i<5; i++){
-      tdsqlite3_bind_value(pInsert, i+1, tdsqlite3_column_value(pSql, i));
-    }
-    tdsqlite3_step(pInsert);
-    p->rc = tdsqlite3_reset(pInsert);
-  }
-  if( p->rc==SQLITE_OK ){
-    p->rc = tdsqlite3_exec(p->dbMain, "PRAGMA writable_schema=0",0,0,&p->zErrmsg);
-  }
-
-  rbuFinalize(p, pSql);
-  rbuFinalize(p, pInsert);
-}
-
-/*
-** Step the RBU object.
-*/
-SQLITE_API int tdsqlite3rbu_step(tdsqlite3rbu *p){
-  if( p ){
-    switch( p->eStage ){
-      case RBU_STAGE_OAL: {
-        RbuObjIter *pIter = &p->objiter;
-
-        /* If this is an RBU vacuum operation and the state table was empty
-        ** when this handle was opened, create the target database schema. */
-        if( rbuIsVacuum(p) && p->nProgress==0 && p->rc==SQLITE_OK ){
-          rbuCreateTargetSchema(p);
-          rbuCopyPragma(p, "user_version");
-          rbuCopyPragma(p, "application_id");
-        }
-
-        while( p->rc==SQLITE_OK && pIter->zTbl ){
-
-          if( pIter->bCleanup ){
-            /* Clean up the rbu_tmp_xxx table for the previous table. It 
-            ** cannot be dropped as there are currently active SQL statements.
-            ** But the contents can be deleted.  */
-            if( rbuIsVacuum(p)==0 && pIter->abIndexed ){
-              rbuMPrintfExec(p, p->dbRbu, 
-                  "DELETE FROM %s.'rbu_tmp_%q'", p->zStateDb, pIter->zDataTbl
-              );
-            }
-          }else{
-            rbuObjIterPrepareAll(p, pIter, 0);
-
-            /* Advance to the next row to process. */
-            if( p->rc==SQLITE_OK ){
-              int rc = tdsqlite3_step(pIter->pSelect);
-              if( rc==SQLITE_ROW ){
-                p->nProgress++;
-                p->nStep++;
-                return rbuStep(p);
-              }
-              p->rc = tdsqlite3_reset(pIter->pSelect);
-              p->nStep = 0;
-            }
-          }
-
-          rbuObjIterNext(p, pIter);
-        }
-
-        if( p->rc==SQLITE_OK ){
-          assert( pIter->zTbl==0 );
-          rbuSaveState(p, RBU_STAGE_MOVE);
-          rbuIncrSchemaCookie(p);
-          if( p->rc==SQLITE_OK ){
-            p->rc = tdsqlite3_exec(p->dbMain, "COMMIT", 0, 0, &p->zErrmsg);
-          }
-          if( p->rc==SQLITE_OK ){
-            p->rc = tdsqlite3_exec(p->dbRbu, "COMMIT", 0, 0, &p->zErrmsg);
-          }
-          p->eStage = RBU_STAGE_MOVE;
-        }
-        break;
-      }
-
-      case RBU_STAGE_MOVE: {
-        if( p->rc==SQLITE_OK ){
-          rbuMoveOalFile(p);
-          p->nProgress++;
-        }
-        break;
-      }
-
-      case RBU_STAGE_CKPT: {
-        if( p->rc==SQLITE_OK ){
-          if( p->nStep>=p->nFrame ){
-            tdsqlite3_file *pDb = p->pTargetFd->pReal;
-  
-            /* Sync the db file */
-            p->rc = pDb->pMethods->xSync(pDb, SQLITE_SYNC_NORMAL);
-  
-            /* Update nBackfill */
-            if( p->rc==SQLITE_OK ){
-              void volatile *ptr;
-              p->rc = pDb->pMethods->xShmMap(pDb, 0, 32*1024, 0, &ptr);
-              if( p->rc==SQLITE_OK ){
-                ((u32 volatile*)ptr)[24] = p->iMaxFrame;
-              }
-            }
-  
-            if( p->rc==SQLITE_OK ){
-              p->eStage = RBU_STAGE_DONE;
-              p->rc = SQLITE_DONE;
-            }
-          }else{
-            /* At one point the following block copied a single frame from the
-            ** wal file to the database file. So that one call to tdsqlite3rbu_step()
-            ** checkpointed a single frame. 
-            **
-            ** However, if the sector-size is larger than the page-size, and the
-            ** application calls tdsqlite3rbu_savestate() or close() immediately
-            ** after this step, then rbu_step() again, then a power failure occurs,
-            ** then the database page written here may be damaged. Work around
-            ** this by checkpointing frames until the next page in the aFrame[]
-            ** lies on a different disk sector to the current one. */
-            u32 iSector;
-            do{
-              RbuFrame *pFrame = &p->aFrame[p->nStep];
-              iSector = (pFrame->iDbPage-1) / p->nPagePerSector;
-              rbuCheckpointFrame(p, pFrame);
-              p->nStep++;
-            }while( p->nStep<p->nFrame 
-                 && iSector==((p->aFrame[p->nStep].iDbPage-1) / p->nPagePerSector)
-                 && p->rc==SQLITE_OK
-            );
-          }
-          p->nProgress++;
-        }
-        break;
-      }
-
-      default:
-        break;
-    }
-    return p->rc;
-  }else{
-    return SQLITE_NOMEM;
-  }
-}
-
-/*
-** Compare strings z1 and z2, returning 0 if they are identical, or non-zero
-** otherwise. Either or both argument may be NULL. Two NULL values are
-** considered equal, and NULL is considered distinct from all other values.
-*/
-static int rbuStrCompare(const char *z1, const char *z2){
-  if( z1==0 && z2==0 ) return 0;
-  if( z1==0 || z2==0 ) return 1;
-  return (tdsqlite3_stricmp(z1, z2)!=0);
-}
-
-/*
-** This function is called as part of tdsqlite3rbu_open() when initializing
-** an rbu handle in OAL stage. If the rbu update has not started (i.e.
-** the rbu_state table was empty) it is a no-op. Otherwise, it arranges
-** things so that the next call to tdsqlite3rbu_step() continues on from
-** where the previous rbu handle left off.
-**
-** If an error occurs, an error code and error message are left in the
-** rbu handle passed as the first argument.
-*/
-static void rbuSetupOal(tdsqlite3rbu *p, RbuState *pState){
-  assert( p->rc==SQLITE_OK );
-  if( pState->zTbl ){
-    RbuObjIter *pIter = &p->objiter;
-    int rc = SQLITE_OK;
-
-    while( rc==SQLITE_OK && pIter->zTbl && (pIter->bCleanup 
-       || rbuStrCompare(pIter->zIdx, pState->zIdx)
-       || (pState->zDataTbl==0 && rbuStrCompare(pIter->zTbl, pState->zTbl))
-       || (pState->zDataTbl && rbuStrCompare(pIter->zDataTbl, pState->zDataTbl))
-    )){
-      rc = rbuObjIterNext(p, pIter);
-    }
-
-    if( rc==SQLITE_OK && !pIter->zTbl ){
-      rc = SQLITE_ERROR;
-      p->zErrmsg = tdsqlite3_mprintf("rbu_state mismatch error");
-    }
-
-    if( rc==SQLITE_OK ){
-      p->nStep = pState->nRow;
-      rc = rbuObjIterPrepareAll(p, &p->objiter, p->nStep);
-    }
-
-    p->rc = rc;
-  }
-}
-
-/*
-** If there is a "*-oal" file in the file-system corresponding to the
-** target database in the file-system, delete it. If an error occurs,
-** leave an error code and error message in the rbu handle.
-*/
-static void rbuDeleteOalFile(tdsqlite3rbu *p){
-  char *zOal = rbuMPrintf(p, "%s-oal", p->zTarget);
-  if( zOal ){
-    tdsqlite3_vfs *pVfs = tdsqlite3_vfs_find(0);
-    assert( pVfs && p->rc==SQLITE_OK && p->zErrmsg==0 );
-    pVfs->xDelete(pVfs, zOal, 0);
-    tdsqlite3_free(zOal);
-  }
-}
-
-/*
-** Allocate a private rbu VFS for the rbu handle passed as the only
-** argument. This VFS will be used unless the call to tdsqlite3rbu_open()
-** specified a URI with a vfs=? option in place of a target database
-** file name.
-*/
-static void rbuCreateVfs(tdsqlite3rbu *p){
-  int rnd;
-  char zRnd[64];
-
-  assert( p->rc==SQLITE_OK );
-  tdsqlite3_randomness(sizeof(int), (void*)&rnd);
-  tdsqlite3_snprintf(sizeof(zRnd), zRnd, "rbu_vfs_%d", rnd);
-  p->rc = tdsqlite3rbu_create_vfs(zRnd, 0);
-  if( p->rc==SQLITE_OK ){
-    tdsqlite3_vfs *pVfs = tdsqlite3_vfs_find(zRnd);
-    assert( pVfs );
-    p->zVfsName = pVfs->zName;
-    ((rbu_vfs*)pVfs)->pRbu = p;
-  }
-}
-
-/*
-** Destroy the private VFS created for the rbu handle passed as the only
-** argument by an earlier call to rbuCreateVfs().
-*/
-static void rbuDeleteVfs(tdsqlite3rbu *p){
-  if( p->zVfsName ){
-    tdsqlite3rbu_destroy_vfs(p->zVfsName);
-    p->zVfsName = 0;
-  }
-}
-
-/*
-** This user-defined SQL function is invoked with a single argument - the
-** name of a table expected to appear in the target database. It returns
-** the number of auxilliary indexes on the table.
-*/
-static void rbuIndexCntFunc(
-  tdsqlite3_context *pCtx, 
-  int nVal,
-  tdsqlite3_value **apVal
-){
-  tdsqlite3rbu *p = (tdsqlite3rbu*)tdsqlite3_user_data(pCtx);
-  tdsqlite3_stmt *pStmt = 0;
-  char *zErrmsg = 0;
-  int rc;
-  tdsqlite3 *db = (rbuIsVacuum(p) ? p->dbRbu : p->dbMain);
-
-  assert( nVal==1 );
-  
-  rc = prepareFreeAndCollectError(db, &pStmt, &zErrmsg, 
-      tdsqlite3_mprintf("SELECT count(*) FROM sqlite_master "
-        "WHERE type='index' AND tbl_name = %Q", tdsqlite3_value_text(apVal[0]))
-  );
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_result_error(pCtx, zErrmsg, -1);
-  }else{
-    int nIndex = 0;
-    if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      nIndex = tdsqlite3_column_int(pStmt, 0);
-    }
-    rc = tdsqlite3_finalize(pStmt);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_result_int(pCtx, nIndex);
-    }else{
-      tdsqlite3_result_error(pCtx, tdsqlite3_errmsg(db), -1);
-    }
-  }
-
-  tdsqlite3_free(zErrmsg);
-}
-
-/*
-** If the RBU database contains the rbu_count table, use it to initialize
-** the tdsqlite3rbu.nPhaseOneStep variable. The schema of the rbu_count table
-** is assumed to contain the same columns as:
-**
-**   CREATE TABLE rbu_count(tbl TEXT PRIMARY KEY, cnt INTEGER) WITHOUT ROWID;
-**
-** There should be one row in the table for each data_xxx table in the
-** database. The 'tbl' column should contain the name of a data_xxx table,
-** and the cnt column the number of rows it contains.
-**
-** tdsqlite3rbu.nPhaseOneStep is initialized to the sum of (1 + nIndex) * cnt
-** for all rows in the rbu_count table, where nIndex is the number of 
-** indexes on the corresponding target database table.
-*/
-static void rbuInitPhaseOneSteps(tdsqlite3rbu *p){
-  if( p->rc==SQLITE_OK ){
-    tdsqlite3_stmt *pStmt = 0;
-    int bExists = 0;                /* True if rbu_count exists */
-
-    p->nPhaseOneStep = -1;
-
-    p->rc = tdsqlite3_create_function(p->dbRbu, 
-        "rbu_index_cnt", 1, SQLITE_UTF8, (void*)p, rbuIndexCntFunc, 0, 0
-    );
-  
-    /* Check for the rbu_count table. If it does not exist, or if an error
-    ** occurs, nPhaseOneStep will be left set to -1. */
-    if( p->rc==SQLITE_OK ){
-      p->rc = prepareAndCollectError(p->dbRbu, &pStmt, &p->zErrmsg,
-          "SELECT 1 FROM sqlite_master WHERE tbl_name = 'rbu_count'"
-      );
-    }
-    if( p->rc==SQLITE_OK ){
-      if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-        bExists = 1;
-      }
-      p->rc = tdsqlite3_finalize(pStmt);
-    }
-  
-    if( p->rc==SQLITE_OK && bExists ){
-      p->rc = prepareAndCollectError(p->dbRbu, &pStmt, &p->zErrmsg,
-          "SELECT sum(cnt * (1 + rbu_index_cnt(rbu_target_name(tbl))))"
-          "FROM rbu_count"
-      );
-      if( p->rc==SQLITE_OK ){
-        if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-          p->nPhaseOneStep = tdsqlite3_column_int64(pStmt, 0);
-        }
-        p->rc = tdsqlite3_finalize(pStmt);
-      }
-    }
-  }
-}
-
-
-static tdsqlite3rbu *openRbuHandle(
-  const char *zTarget, 
-  const char *zRbu,
-  const char *zState
-){
-  tdsqlite3rbu *p;
-  size_t nTarget = zTarget ? strlen(zTarget) : 0;
-  size_t nRbu = strlen(zRbu);
-  size_t nByte = sizeof(tdsqlite3rbu) + nTarget+1 + nRbu+1;
-
-  p = (tdsqlite3rbu*)tdsqlite3_malloc64(nByte);
-  if( p ){
-    RbuState *pState = 0;
-
-    /* Create the custom VFS. */
-    memset(p, 0, sizeof(tdsqlite3rbu));
-    rbuCreateVfs(p);
-
-    /* Open the target, RBU and state databases */
-    if( p->rc==SQLITE_OK ){
-      char *pCsr = (char*)&p[1];
-      int bRetry = 0;
-      if( zTarget ){
-        p->zTarget = pCsr;
-        memcpy(p->zTarget, zTarget, nTarget+1);
-        pCsr += nTarget+1;
-      }
-      p->zRbu = pCsr;
-      memcpy(p->zRbu, zRbu, nRbu+1);
-      pCsr += nRbu+1;
-      if( zState ){
-        p->zState = rbuMPrintf(p, "%s", zState);
-      }
-
-      /* If the first attempt to open the database file fails and the bRetry
-      ** flag it set, this means that the db was not opened because it seemed
-      ** to be a wal-mode db. But, this may have happened due to an earlier
-      ** RBU vacuum operation leaving an old wal file in the directory.
-      ** If this is the case, it will have been checkpointed and deleted
-      ** when the handle was closed and a second attempt to open the 
-      ** database may succeed.  */
-      rbuOpenDatabase(p, &bRetry);
-      if( bRetry ){
-        rbuOpenDatabase(p, 0);
-      }
-    }
-
-    if( p->rc==SQLITE_OK ){
-      pState = rbuLoadState(p);
-      assert( pState || p->rc!=SQLITE_OK );
-      if( p->rc==SQLITE_OK ){
-
-        if( pState->eStage==0 ){ 
-          rbuDeleteOalFile(p);
-          rbuInitPhaseOneSteps(p);
-          p->eStage = RBU_STAGE_OAL;
-        }else{
-          p->eStage = pState->eStage;
-          p->nPhaseOneStep = pState->nPhaseOneStep;
-        }
-        p->nProgress = pState->nProgress;
-        p->iOalSz = pState->iOalSz;
-      }
-    }
-    assert( p->rc!=SQLITE_OK || p->eStage!=0 );
-
-    if( p->rc==SQLITE_OK && p->pTargetFd->pWalFd ){
-      if( p->eStage==RBU_STAGE_OAL ){
-        p->rc = SQLITE_ERROR;
-        p->zErrmsg = tdsqlite3_mprintf("cannot update wal mode database");
-      }else if( p->eStage==RBU_STAGE_MOVE ){
-        p->eStage = RBU_STAGE_CKPT;
-        p->nStep = 0;
-      }
-    }
-
-    if( p->rc==SQLITE_OK 
-     && (p->eStage==RBU_STAGE_OAL || p->eStage==RBU_STAGE_MOVE)
-     && pState->eStage!=0
-    ){
-      rbu_file *pFd = (rbuIsVacuum(p) ? p->pRbuFd : p->pTargetFd);
-      if( pFd->iCookie!=pState->iCookie ){   
-        /* At this point (pTargetFd->iCookie) contains the value of the
-        ** change-counter cookie (the thing that gets incremented when a 
-        ** transaction is committed in rollback mode) currently stored on 
-        ** page 1 of the database file. */
-        p->rc = SQLITE_BUSY;
-        p->zErrmsg = tdsqlite3_mprintf("database modified during rbu %s",
-            (rbuIsVacuum(p) ? "vacuum" : "update")
-        );
-      }
-    }
-
-    if( p->rc==SQLITE_OK ){
-      if( p->eStage==RBU_STAGE_OAL ){
-        tdsqlite3 *db = p->dbMain;
-        p->rc = tdsqlite3_exec(p->dbRbu, "BEGIN", 0, 0, &p->zErrmsg);
-
-        /* Point the object iterator at the first object */
-        if( p->rc==SQLITE_OK ){
-          p->rc = rbuObjIterFirst(p, &p->objiter);
-        }
-
-        /* If the RBU database contains no data_xxx tables, declare the RBU
-        ** update finished.  */
-        if( p->rc==SQLITE_OK && p->objiter.zTbl==0 ){
-          p->rc = SQLITE_DONE;
-          p->eStage = RBU_STAGE_DONE;
-        }else{
-          if( p->rc==SQLITE_OK && pState->eStage==0 && rbuIsVacuum(p) ){
-            rbuCopyPragma(p, "page_size");
-            rbuCopyPragma(p, "auto_vacuum");
-          }
-
-          /* Open transactions both databases. The *-oal file is opened or
-          ** created at this point. */
-          if( p->rc==SQLITE_OK ){
-            p->rc = tdsqlite3_exec(db, "BEGIN IMMEDIATE", 0, 0, &p->zErrmsg);
-          }
-
-          /* Check if the main database is a zipvfs db. If it is, set the upper
-          ** level pager to use "journal_mode=off". This prevents it from 
-          ** generating a large journal using a temp file.  */
-          if( p->rc==SQLITE_OK ){
-            int frc = tdsqlite3_file_control(db, "main", SQLITE_FCNTL_ZIPVFS, 0);
-            if( frc==SQLITE_OK ){
-              p->rc = tdsqlite3_exec(
-                db, "PRAGMA journal_mode=off",0,0,&p->zErrmsg);
-            }
-          }
-
-          if( p->rc==SQLITE_OK ){
-            rbuSetupOal(p, pState);
-          }
-        }
-      }else if( p->eStage==RBU_STAGE_MOVE ){
-        /* no-op */
-      }else if( p->eStage==RBU_STAGE_CKPT ){
-        rbuSetupCheckpoint(p, pState);
-      }else if( p->eStage==RBU_STAGE_DONE ){
-        p->rc = SQLITE_DONE;
-      }else{
-        p->rc = SQLITE_CORRUPT;
-      }
-    }
-
-    rbuFreeState(pState);
-  }
-
-  return p;
-}
-
-/*
-** Allocate and return an RBU handle with all fields zeroed except for the
-** error code, which is set to SQLITE_MISUSE.
-*/
-static tdsqlite3rbu *rbuMisuseError(void){
-  tdsqlite3rbu *pRet;
-  pRet = tdsqlite3_malloc64(sizeof(tdsqlite3rbu));
-  if( pRet ){
-    memset(pRet, 0, sizeof(tdsqlite3rbu));
-    pRet->rc = SQLITE_MISUSE;
-  }
-  return pRet;
-}
-
-/*
-** Open and return a new RBU handle. 
-*/
-SQLITE_API tdsqlite3rbu *tdsqlite3rbu_open(
-  const char *zTarget, 
-  const char *zRbu,
-  const char *zState
-){
-  if( zTarget==0 || zRbu==0 ){ return rbuMisuseError(); }
-  /* TODO: Check that zTarget and zRbu are non-NULL */
-  return openRbuHandle(zTarget, zRbu, zState);
-}
-
-/*
-** Open a handle to begin or resume an RBU VACUUM operation.
-*/
-SQLITE_API tdsqlite3rbu *tdsqlite3rbu_vacuum(
-  const char *zTarget, 
-  const char *zState
-){
-  if( zTarget==0 ){ return rbuMisuseError(); }
-  if( zState ){
-    int n = strlen(zState);
-    if( n>=7 && 0==memcmp("-vactmp", &zState[n-7], 7) ){
-      return rbuMisuseError();
-    }
-  }
-  /* TODO: Check that both arguments are non-NULL */
-  return openRbuHandle(0, zTarget, zState);
-}
-
-/*
-** Return the database handle used by pRbu.
-*/
-SQLITE_API tdsqlite3 *tdsqlite3rbu_db(tdsqlite3rbu *pRbu, int bRbu){
-  tdsqlite3 *db = 0;
-  if( pRbu ){
-    db = (bRbu ? pRbu->dbRbu : pRbu->dbMain);
-  }
-  return db;
-}
-
-
-/*
-** If the error code currently stored in the RBU handle is SQLITE_CONSTRAINT,
-** then edit any error message string so as to remove all occurrences of
-** the pattern "rbu_imp_[0-9]*".
-*/
-static void rbuEditErrmsg(tdsqlite3rbu *p){
-  if( p->rc==SQLITE_CONSTRAINT && p->zErrmsg ){
-    unsigned int i;
-    size_t nErrmsg = strlen(p->zErrmsg);
-    for(i=0; i<(nErrmsg-8); i++){
-      if( memcmp(&p->zErrmsg[i], "rbu_imp_", 8)==0 ){
-        int nDel = 8;
-        while( p->zErrmsg[i+nDel]>='0' && p->zErrmsg[i+nDel]<='9' ) nDel++;
-        memmove(&p->zErrmsg[i], &p->zErrmsg[i+nDel], nErrmsg + 1 - i - nDel);
-        nErrmsg -= nDel;
-      }
-    }
-  }
-}
-
-/*
-** Close the RBU handle.
-*/
-SQLITE_API int tdsqlite3rbu_close(tdsqlite3rbu *p, char **pzErrmsg){
-  int rc;
-  if( p ){
-
-    /* Commit the transaction to the *-oal file. */
-    if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_OAL ){
-      p->rc = tdsqlite3_exec(p->dbMain, "COMMIT", 0, 0, &p->zErrmsg);
-    }
-
-    /* Sync the db file if currently doing an incremental checkpoint */
-    if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_CKPT ){
-      tdsqlite3_file *pDb = p->pTargetFd->pReal;
-      p->rc = pDb->pMethods->xSync(pDb, SQLITE_SYNC_NORMAL);
-    }
-
-    rbuSaveState(p, p->eStage);
-
-    if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_OAL ){
-      p->rc = tdsqlite3_exec(p->dbRbu, "COMMIT", 0, 0, &p->zErrmsg);
-    }
-
-    /* Close any open statement handles. */
-    rbuObjIterFinalize(&p->objiter);
-
-    /* If this is an RBU vacuum handle and the vacuum has either finished
-    ** successfully or encountered an error, delete the contents of the 
-    ** state table. This causes the next call to tdsqlite3rbu_vacuum() 
-    ** specifying the current target and state databases to start a new
-    ** vacuum from scratch.  */
-    if( rbuIsVacuum(p) && p->rc!=SQLITE_OK && p->dbRbu ){
-      int rc2 = tdsqlite3_exec(p->dbRbu, "DELETE FROM stat.rbu_state", 0, 0, 0);
-      if( p->rc==SQLITE_DONE && rc2!=SQLITE_OK ) p->rc = rc2;
-    }
-
-    /* Close the open database handle and VFS object. */
-    tdsqlite3_close(p->dbRbu);
-    tdsqlite3_close(p->dbMain);
-    assert( p->szTemp==0 );
-    rbuDeleteVfs(p);
-    tdsqlite3_free(p->aBuf);
-    tdsqlite3_free(p->aFrame);
-
-    rbuEditErrmsg(p);
-    rc = p->rc;
-    if( pzErrmsg ){
-      *pzErrmsg = p->zErrmsg;
-    }else{
-      tdsqlite3_free(p->zErrmsg);
-    }
-    tdsqlite3_free(p->zState);
-    tdsqlite3_free(p);
-  }else{
-    rc = SQLITE_NOMEM;
-    *pzErrmsg = 0;
-  }
-  return rc;
-}
-
-/*
-** Return the total number of key-value operations (inserts, deletes or 
-** updates) that have been performed on the target database since the
-** current RBU update was started.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3rbu_progress(tdsqlite3rbu *pRbu){
-  return pRbu->nProgress;
-}
-
-/*
-** Return permyriadage progress indications for the two main stages of
-** an RBU update.
-*/
-SQLITE_API void tdsqlite3rbu_bp_progress(tdsqlite3rbu *p, int *pnOne, int *pnTwo){
-  const int MAX_PROGRESS = 10000;
-  switch( p->eStage ){
-    case RBU_STAGE_OAL:
-      if( p->nPhaseOneStep>0 ){
-        *pnOne = (int)(MAX_PROGRESS * (i64)p->nProgress/(i64)p->nPhaseOneStep);
-      }else{
-        *pnOne = -1;
-      }
-      *pnTwo = 0;
-      break;
-
-    case RBU_STAGE_MOVE:
-      *pnOne = MAX_PROGRESS;
-      *pnTwo = 0;
-      break;
-
-    case RBU_STAGE_CKPT:
-      *pnOne = MAX_PROGRESS;
-      *pnTwo = (int)(MAX_PROGRESS * (i64)p->nStep / (i64)p->nFrame);
-      break;
-
-    case RBU_STAGE_DONE:
-      *pnOne = MAX_PROGRESS;
-      *pnTwo = MAX_PROGRESS;
-      break;
-
-    default:
-      assert( 0 );
-  }
-}
-
-/*
-** Return the current state of the RBU vacuum or update operation.
-*/
-SQLITE_API int tdsqlite3rbu_state(tdsqlite3rbu *p){
-  int aRes[] = {
-    0, SQLITE_RBU_STATE_OAL, SQLITE_RBU_STATE_MOVE,
-    0, SQLITE_RBU_STATE_CHECKPOINT, SQLITE_RBU_STATE_DONE
-  };
-
-  assert( RBU_STAGE_OAL==1 );
-  assert( RBU_STAGE_MOVE==2 );
-  assert( RBU_STAGE_CKPT==4 );
-  assert( RBU_STAGE_DONE==5 );
-  assert( aRes[RBU_STAGE_OAL]==SQLITE_RBU_STATE_OAL );
-  assert( aRes[RBU_STAGE_MOVE]==SQLITE_RBU_STATE_MOVE );
-  assert( aRes[RBU_STAGE_CKPT]==SQLITE_RBU_STATE_CHECKPOINT );
-  assert( aRes[RBU_STAGE_DONE]==SQLITE_RBU_STATE_DONE );
-
-  if( p->rc!=SQLITE_OK && p->rc!=SQLITE_DONE ){
-    return SQLITE_RBU_STATE_ERROR;
-  }else{
-    assert( p->rc!=SQLITE_DONE || p->eStage==RBU_STAGE_DONE );
-    assert( p->eStage==RBU_STAGE_OAL
-         || p->eStage==RBU_STAGE_MOVE
-         || p->eStage==RBU_STAGE_CKPT
-         || p->eStage==RBU_STAGE_DONE
-    );
-    return aRes[p->eStage];
-  }
-}
-
-SQLITE_API int tdsqlite3rbu_savestate(tdsqlite3rbu *p){
-  int rc = p->rc;
-  if( rc==SQLITE_DONE ) return SQLITE_OK;
-
-  assert( p->eStage>=RBU_STAGE_OAL && p->eStage<=RBU_STAGE_DONE );
-  if( p->eStage==RBU_STAGE_OAL ){
-    assert( rc!=SQLITE_DONE );
-    if( rc==SQLITE_OK ) rc = tdsqlite3_exec(p->dbMain, "COMMIT", 0, 0, 0);
-  }
-
-  /* Sync the db file */
-  if( rc==SQLITE_OK && p->eStage==RBU_STAGE_CKPT ){
-    tdsqlite3_file *pDb = p->pTargetFd->pReal;
-    rc = pDb->pMethods->xSync(pDb, SQLITE_SYNC_NORMAL);
-  }
-
-  p->rc = rc;
-  rbuSaveState(p, p->eStage);
-  rc = p->rc;
-
-  if( p->eStage==RBU_STAGE_OAL ){
-    assert( rc!=SQLITE_DONE );
-    if( rc==SQLITE_OK ) rc = tdsqlite3_exec(p->dbRbu, "COMMIT", 0, 0, 0);
-    if( rc==SQLITE_OK ){ 
-      const char *zBegin = rbuIsVacuum(p) ? "BEGIN" : "BEGIN IMMEDIATE";
-      rc = tdsqlite3_exec(p->dbRbu, zBegin, 0, 0, 0);
-    }
-    if( rc==SQLITE_OK ) rc = tdsqlite3_exec(p->dbMain, "BEGIN IMMEDIATE", 0, 0,0);
-  }
-
-  p->rc = rc;
-  return rc;
-}
-
-/**************************************************************************
-** Beginning of RBU VFS shim methods. The VFS shim modifies the behaviour
-** of a standard VFS in the following ways:
-**
-** 1. Whenever the first page of a main database file is read or 
-**    written, the value of the change-counter cookie is stored in
-**    rbu_file.iCookie. Similarly, the value of the "write-version"
-**    database header field is stored in rbu_file.iWriteVer. This ensures
-**    that the values are always trustworthy within an open transaction.
-**
-** 2. Whenever an SQLITE_OPEN_WAL file is opened, the (rbu_file.pWalFd)
-**    member variable of the associated database file descriptor is set
-**    to point to the new file. A mutex protected linked list of all main 
-**    db fds opened using a particular RBU VFS is maintained at 
-**    rbu_vfs.pMain to facilitate this.
-**
-** 3. Using a new file-control "SQLITE_FCNTL_RBU", a main db rbu_file 
-**    object can be marked as the target database of an RBU update. This
-**    turns on the following extra special behaviour:
-**
-** 3a. If xAccess() is called to check if there exists a *-wal file 
-**     associated with an RBU target database currently in RBU_STAGE_OAL
-**     stage (preparing the *-oal file), the following special handling
-**     applies:
-**
-**      * if the *-wal file does exist, return SQLITE_CANTOPEN. An RBU
-**        target database may not be in wal mode already.
-**
-**      * if the *-wal file does not exist, set the output parameter to
-**        non-zero (to tell SQLite that it does exist) anyway.
-**
-**     Then, when xOpen() is called to open the *-wal file associated with
-**     the RBU target in RBU_STAGE_OAL stage, instead of opening the *-wal
-**     file, the rbu vfs opens the corresponding *-oal file instead. 
-**
-** 3b. The *-shm pages returned by xShmMap() for a target db file in
-**     RBU_STAGE_OAL mode are actually stored in heap memory. This is to
-**     avoid creating a *-shm file on disk. Additionally, xShmLock() calls
-**     are no-ops on target database files in RBU_STAGE_OAL mode. This is
-**     because assert() statements in some VFS implementations fail if 
-**     xShmLock() is called before xShmMap().
-**
-** 3c. If an EXCLUSIVE lock is attempted on a target database file in any
-**     mode except RBU_STAGE_DONE (all work completed and checkpointed), it 
-**     fails with an SQLITE_BUSY error. This is to stop RBU connections
-**     from automatically checkpointing a *-wal (or *-oal) file from within
-**     tdsqlite3_close().
-**
-** 3d. In RBU_STAGE_CAPTURE mode, all xRead() calls on the wal file, and
-**     all xWrite() calls on the target database file perform no IO. 
-**     Instead the frame and page numbers that would be read and written
-**     are recorded. Additionally, successful attempts to obtain exclusive
-**     xShmLock() WRITER, CHECKPOINTER and READ0 locks on the target 
-**     database file are recorded. xShmLock() calls to unlock the same
-**     locks are no-ops (so that once obtained, these locks are never
-**     relinquished). Finally, calls to xSync() on the target database
-**     file fail with SQLITE_INTERNAL errors.
-*/
-
-static void rbuUnlockShm(rbu_file *p){
-  assert( p->openFlags & SQLITE_OPEN_MAIN_DB );
-  if( p->pRbu ){
-    int (*xShmLock)(tdsqlite3_file*,int,int,int) = p->pReal->pMethods->xShmLock;
-    int i;
-    for(i=0; i<SQLITE_SHM_NLOCK;i++){
-      if( (1<<i) & p->pRbu->mLock ){
-        xShmLock(p->pReal, i, 1, SQLITE_SHM_UNLOCK|SQLITE_SHM_EXCLUSIVE);
-      }
-    }
-    p->pRbu->mLock = 0;
-  }
-}
-
-/*
-*/
-static int rbuUpdateTempSize(rbu_file *pFd, tdsqlite3_int64 nNew){
-  tdsqlite3rbu *pRbu = pFd->pRbu;
-  i64 nDiff = nNew - pFd->sz;
-  pRbu->szTemp += nDiff;
-  pFd->sz = nNew;
-  assert( pRbu->szTemp>=0 );
-  if( pRbu->szTempLimit && pRbu->szTemp>pRbu->szTempLimit ) return SQLITE_FULL;
-  return SQLITE_OK;
-}
-
-/*
-** Add an item to the main-db lists, if it is not already present.
-**
-** There are two main-db lists. One for all file descriptors, and one
-** for all file descriptors with rbu_file.pDb!=0. If the argument has
-** rbu_file.pDb!=0, then it is assumed to already be present on the
-** main list and is only added to the pDb!=0 list.
-*/
-static void rbuMainlistAdd(rbu_file *p){
-  rbu_vfs *pRbuVfs = p->pRbuVfs;
-  rbu_file *pIter;
-  assert( (p->openFlags & SQLITE_OPEN_MAIN_DB) );
-  tdsqlite3_mutex_enter(pRbuVfs->mutex);
-  if( p->pRbu==0 ){
-    for(pIter=pRbuVfs->pMain; pIter; pIter=pIter->pMainNext);
-    p->pMainNext = pRbuVfs->pMain;
-    pRbuVfs->pMain = p;
-  }else{
-    for(pIter=pRbuVfs->pMainRbu; pIter && pIter!=p; pIter=pIter->pMainRbuNext){}
-    if( pIter==0 ){
-      p->pMainRbuNext = pRbuVfs->pMainRbu;
-      pRbuVfs->pMainRbu = p;
-    }
-  }
-  tdsqlite3_mutex_leave(pRbuVfs->mutex);
-}
-
-/*
-** Remove an item from the main-db lists.
-*/
-static void rbuMainlistRemove(rbu_file *p){
-  rbu_file **pp;
-  tdsqlite3_mutex_enter(p->pRbuVfs->mutex);
-  for(pp=&p->pRbuVfs->pMain; *pp && *pp!=p; pp=&((*pp)->pMainNext)){}
-  if( *pp ) *pp = p->pMainNext;
-  p->pMainNext = 0;
-  for(pp=&p->pRbuVfs->pMainRbu; *pp && *pp!=p; pp=&((*pp)->pMainRbuNext)){}
-  if( *pp ) *pp = p->pMainRbuNext;
-  p->pMainRbuNext = 0;
-  tdsqlite3_mutex_leave(p->pRbuVfs->mutex);
-}
-
-/*
-** Given that zWal points to a buffer containing a wal file name passed to 
-** either the xOpen() or xAccess() VFS method, search the main-db list for
-** a file-handle opened by the same database connection on the corresponding
-** database file.
-**
-** If parameter bRbu is true, only search for file-descriptors with
-** rbu_file.pDb!=0.
-*/
-static rbu_file *rbuFindMaindb(rbu_vfs *pRbuVfs, const char *zWal, int bRbu){
-  rbu_file *pDb;
-  tdsqlite3_mutex_enter(pRbuVfs->mutex);
-  if( bRbu ){
-    for(pDb=pRbuVfs->pMainRbu; pDb && pDb->zWal!=zWal; pDb=pDb->pMainRbuNext){}
-  }else{
-    for(pDb=pRbuVfs->pMain; pDb && pDb->zWal!=zWal; pDb=pDb->pMainNext){}
-  }
-  tdsqlite3_mutex_leave(pRbuVfs->mutex);
-  return pDb;
-}
-
-/*
-** Close an rbu file.
-*/
-static int rbuVfsClose(tdsqlite3_file *pFile){
-  rbu_file *p = (rbu_file*)pFile;
-  int rc;
-  int i;
-
-  /* Free the contents of the apShm[] array. And the array itself. */
-  for(i=0; i<p->nShm; i++){
-    tdsqlite3_free(p->apShm[i]);
-  }
-  tdsqlite3_free(p->apShm);
-  p->apShm = 0;
-  tdsqlite3_free(p->zDel);
-
-  if( p->openFlags & SQLITE_OPEN_MAIN_DB ){
-    rbuMainlistRemove(p);
-    rbuUnlockShm(p);
-    p->pReal->pMethods->xShmUnmap(p->pReal, 0);
-  }
-  else if( (p->openFlags & SQLITE_OPEN_DELETEONCLOSE) && p->pRbu ){
-    rbuUpdateTempSize(p, 0);
-  }
-  assert( p->pMainNext==0 && p->pRbuVfs->pMain!=p );
-
-  /* Close the underlying file handle */
-  rc = p->pReal->pMethods->xClose(p->pReal);
-  return rc;
-}
-
-
-/*
-** Read and return an unsigned 32-bit big-endian integer from the buffer 
-** passed as the only argument.
-*/
-static u32 rbuGetU32(u8 *aBuf){
-  return ((u32)aBuf[0] << 24)
-       + ((u32)aBuf[1] << 16)
-       + ((u32)aBuf[2] <<  8)
-       + ((u32)aBuf[3]);
-}
-
-/*
-** Write an unsigned 32-bit value in big-endian format to the supplied
-** buffer.
-*/
-static void rbuPutU32(u8 *aBuf, u32 iVal){
-  aBuf[0] = (iVal >> 24) & 0xFF;
-  aBuf[1] = (iVal >> 16) & 0xFF;
-  aBuf[2] = (iVal >>  8) & 0xFF;
-  aBuf[3] = (iVal >>  0) & 0xFF;
-}
-
-static void rbuPutU16(u8 *aBuf, u16 iVal){
-  aBuf[0] = (iVal >>  8) & 0xFF;
-  aBuf[1] = (iVal >>  0) & 0xFF;
-}
-
-/*
-** Read data from an rbuVfs-file.
-*/
-static int rbuVfsRead(
-  tdsqlite3_file *pFile, 
-  void *zBuf, 
-  int iAmt, 
-  sqlite_int64 iOfst
-){
-  rbu_file *p = (rbu_file*)pFile;
-  tdsqlite3rbu *pRbu = p->pRbu;
-  int rc;
-
-  if( pRbu && pRbu->eStage==RBU_STAGE_CAPTURE ){
-    assert( p->openFlags & SQLITE_OPEN_WAL );
-    rc = rbuCaptureWalRead(p->pRbu, iOfst, iAmt);
-  }else{
-    if( pRbu && pRbu->eStage==RBU_STAGE_OAL 
-     && (p->openFlags & SQLITE_OPEN_WAL) 
-     && iOfst>=pRbu->iOalSz 
-    ){
-      rc = SQLITE_OK;
-      memset(zBuf, 0, iAmt);
-    }else{
-      rc = p->pReal->pMethods->xRead(p->pReal, zBuf, iAmt, iOfst);
-#if 1
-      /* If this is being called to read the first page of the target 
-      ** database as part of an rbu vacuum operation, synthesize the 
-      ** contents of the first page if it does not yet exist. Otherwise,
-      ** SQLite will not check for a *-wal file.  */
-      if( pRbu && rbuIsVacuum(pRbu) 
-          && rc==SQLITE_IOERR_SHORT_READ && iOfst==0
-          && (p->openFlags & SQLITE_OPEN_MAIN_DB)
-          && pRbu->rc==SQLITE_OK
-      ){
-        tdsqlite3_file *pFd = (tdsqlite3_file*)pRbu->pRbuFd;
-        rc = pFd->pMethods->xRead(pFd, zBuf, iAmt, iOfst);
-        if( rc==SQLITE_OK ){
-          u8 *aBuf = (u8*)zBuf;
-          u32 iRoot = rbuGetU32(&aBuf[52]) ? 1 : 0;
-          rbuPutU32(&aBuf[52], iRoot);      /* largest root page number */
-          rbuPutU32(&aBuf[36], 0);          /* number of free pages */
-          rbuPutU32(&aBuf[32], 0);          /* first page on free list trunk */
-          rbuPutU32(&aBuf[28], 1);          /* size of db file in pages */
-          rbuPutU32(&aBuf[24], pRbu->pRbuFd->iCookie+1);  /* Change counter */
-
-          if( iAmt>100 ){
-            memset(&aBuf[100], 0, iAmt-100);
-            rbuPutU16(&aBuf[105], iAmt & 0xFFFF);
-            aBuf[100] = 0x0D;
-          }
-        }
-      }
-#endif
-    }
-    if( rc==SQLITE_OK && iOfst==0 && (p->openFlags & SQLITE_OPEN_MAIN_DB) ){
-      /* These look like magic numbers. But they are stable, as they are part
-       ** of the definition of the SQLite file format, which may not change. */
-      u8 *pBuf = (u8*)zBuf;
-      p->iCookie = rbuGetU32(&pBuf[24]);
-      p->iWriteVer = pBuf[19];
-    }
-  }
-  return rc;
-}
-
-/*
-** Write data to an rbuVfs-file.
-*/
-static int rbuVfsWrite(
-  tdsqlite3_file *pFile, 
-  const void *zBuf, 
-  int iAmt, 
-  sqlite_int64 iOfst
-){
-  rbu_file *p = (rbu_file*)pFile;
-  tdsqlite3rbu *pRbu = p->pRbu;
-  int rc;
-
-  if( pRbu && pRbu->eStage==RBU_STAGE_CAPTURE ){
-    assert( p->openFlags & SQLITE_OPEN_MAIN_DB );
-    rc = rbuCaptureDbWrite(p->pRbu, iOfst);
-  }else{
-    if( pRbu ){
-      if( pRbu->eStage==RBU_STAGE_OAL 
-       && (p->openFlags & SQLITE_OPEN_WAL) 
-       && iOfst>=pRbu->iOalSz
-      ){
-        pRbu->iOalSz = iAmt + iOfst;
-      }else if( p->openFlags & SQLITE_OPEN_DELETEONCLOSE ){
-        i64 szNew = iAmt+iOfst;
-        if( szNew>p->sz ){
-          rc = rbuUpdateTempSize(p, szNew);
-          if( rc!=SQLITE_OK ) return rc;
-        }
-      }
-    }
-    rc = p->pReal->pMethods->xWrite(p->pReal, zBuf, iAmt, iOfst);
-    if( rc==SQLITE_OK && iOfst==0 && (p->openFlags & SQLITE_OPEN_MAIN_DB) ){
-      /* These look like magic numbers. But they are stable, as they are part
-      ** of the definition of the SQLite file format, which may not change. */
-      u8 *pBuf = (u8*)zBuf;
-      p->iCookie = rbuGetU32(&pBuf[24]);
-      p->iWriteVer = pBuf[19];
-    }
-  }
-  return rc;
-}
-
-/*
-** Truncate an rbuVfs-file.
-*/
-static int rbuVfsTruncate(tdsqlite3_file *pFile, sqlite_int64 size){
-  rbu_file *p = (rbu_file*)pFile;
-  if( (p->openFlags & SQLITE_OPEN_DELETEONCLOSE) && p->pRbu ){
-    int rc = rbuUpdateTempSize(p, size);
-    if( rc!=SQLITE_OK ) return rc;
-  }
-  return p->pReal->pMethods->xTruncate(p->pReal, size);
-}
-
-/*
-** Sync an rbuVfs-file.
-*/
-static int rbuVfsSync(tdsqlite3_file *pFile, int flags){
-  rbu_file *p = (rbu_file *)pFile;
-  if( p->pRbu && p->pRbu->eStage==RBU_STAGE_CAPTURE ){
-    if( p->openFlags & SQLITE_OPEN_MAIN_DB ){
-      return SQLITE_INTERNAL;
-    }
-    return SQLITE_OK;
-  }
-  return p->pReal->pMethods->xSync(p->pReal, flags);
-}
-
-/*
-** Return the current file-size of an rbuVfs-file.
-*/
-static int rbuVfsFileSize(tdsqlite3_file *pFile, sqlite_int64 *pSize){
-  rbu_file *p = (rbu_file *)pFile;
-  int rc;
-  rc = p->pReal->pMethods->xFileSize(p->pReal, pSize);
-
-  /* If this is an RBU vacuum operation and this is the target database,
-  ** pretend that it has at least one page. Otherwise, SQLite will not
-  ** check for the existance of a *-wal file. rbuVfsRead() contains 
-  ** similar logic.  */
-  if( rc==SQLITE_OK && *pSize==0 
-   && p->pRbu && rbuIsVacuum(p->pRbu) 
-   && (p->openFlags & SQLITE_OPEN_MAIN_DB)
-  ){
-    *pSize = 1024;
-  }
-  return rc;
-}
-
-/*
-** Lock an rbuVfs-file.
-*/
-static int rbuVfsLock(tdsqlite3_file *pFile, int eLock){
-  rbu_file *p = (rbu_file*)pFile;
-  tdsqlite3rbu *pRbu = p->pRbu;
-  int rc = SQLITE_OK;
-
-  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
-  if( eLock==SQLITE_LOCK_EXCLUSIVE 
-   && (p->bNolock || (pRbu && pRbu->eStage!=RBU_STAGE_DONE))
-  ){
-    /* Do not allow EXCLUSIVE locks. Preventing SQLite from taking this 
-    ** prevents it from checkpointing the database from tdsqlite3_close(). */
-    rc = SQLITE_BUSY;
-  }else{
-    rc = p->pReal->pMethods->xLock(p->pReal, eLock);
-  }
-
-  return rc;
-}
-
-/*
-** Unlock an rbuVfs-file.
-*/
-static int rbuVfsUnlock(tdsqlite3_file *pFile, int eLock){
-  rbu_file *p = (rbu_file *)pFile;
-  return p->pReal->pMethods->xUnlock(p->pReal, eLock);
-}
-
-/*
-** Check if another file-handle holds a RESERVED lock on an rbuVfs-file.
-*/
-static int rbuVfsCheckReservedLock(tdsqlite3_file *pFile, int *pResOut){
-  rbu_file *p = (rbu_file *)pFile;
-  return p->pReal->pMethods->xCheckReservedLock(p->pReal, pResOut);
-}
-
-/*
-** File control method. For custom operations on an rbuVfs-file.
-*/
-static int rbuVfsFileControl(tdsqlite3_file *pFile, int op, void *pArg){
-  rbu_file *p = (rbu_file *)pFile;
-  int (*xControl)(tdsqlite3_file*,int,void*) = p->pReal->pMethods->xFileControl;
-  int rc;
-
-  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB)
-       || p->openFlags & (SQLITE_OPEN_TRANSIENT_DB|SQLITE_OPEN_TEMP_JOURNAL)
-  );
-  if( op==SQLITE_FCNTL_RBU ){
-    tdsqlite3rbu *pRbu = (tdsqlite3rbu*)pArg;
-
-    /* First try to find another RBU vfs lower down in the vfs stack. If
-    ** one is found, this vfs will operate in pass-through mode. The lower
-    ** level vfs will do the special RBU handling.  */
-    rc = xControl(p->pReal, op, pArg);
-
-    if( rc==SQLITE_NOTFOUND ){
-      /* Now search for a zipvfs instance lower down in the VFS stack. If
-      ** one is found, this is an error.  */
-      void *dummy = 0;
-      rc = xControl(p->pReal, SQLITE_FCNTL_ZIPVFS, &dummy);
-      if( rc==SQLITE_OK ){
-        rc = SQLITE_ERROR;
-        pRbu->zErrmsg = tdsqlite3_mprintf("rbu/zipvfs setup error");
-      }else if( rc==SQLITE_NOTFOUND ){
-        pRbu->pTargetFd = p;
-        p->pRbu = pRbu;
-        rbuMainlistAdd(p);
-        if( p->pWalFd ) p->pWalFd->pRbu = pRbu;
-        rc = SQLITE_OK;
-      }
-    }
-    return rc;
-  }
-  else if( op==SQLITE_FCNTL_RBUCNT ){
-    tdsqlite3rbu *pRbu = (tdsqlite3rbu*)pArg;
-    pRbu->nRbu++;
-    pRbu->pRbuFd = p;
-    p->bNolock = 1;
-  }
-
-  rc = xControl(p->pReal, op, pArg);
-  if( rc==SQLITE_OK && op==SQLITE_FCNTL_VFSNAME ){
-    rbu_vfs *pRbuVfs = p->pRbuVfs;
-    char *zIn = *(char**)pArg;
-    char *zOut = tdsqlite3_mprintf("rbu(%s)/%z", pRbuVfs->base.zName, zIn);
-    *(char**)pArg = zOut;
-    if( zOut==0 ) rc = SQLITE_NOMEM;
-  }
-
-  return rc;
-}
-
-/*
-** Return the sector-size in bytes for an rbuVfs-file.
-*/
-static int rbuVfsSectorSize(tdsqlite3_file *pFile){
-  rbu_file *p = (rbu_file *)pFile;
-  return p->pReal->pMethods->xSectorSize(p->pReal);
-}
-
-/*
-** Return the device characteristic flags supported by an rbuVfs-file.
-*/
-static int rbuVfsDeviceCharacteristics(tdsqlite3_file *pFile){
-  rbu_file *p = (rbu_file *)pFile;
-  return p->pReal->pMethods->xDeviceCharacteristics(p->pReal);
-}
-
-/*
-** Take or release a shared-memory lock.
-*/
-static int rbuVfsShmLock(tdsqlite3_file *pFile, int ofst, int n, int flags){
-  rbu_file *p = (rbu_file*)pFile;
-  tdsqlite3rbu *pRbu = p->pRbu;
-  int rc = SQLITE_OK;
-
-#ifdef SQLITE_AMALGAMATION
-    assert( WAL_CKPT_LOCK==1 );
-#endif
-
-  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
-  if( pRbu && (pRbu->eStage==RBU_STAGE_OAL || pRbu->eStage==RBU_STAGE_MOVE) ){
-    /* Magic number 1 is the WAL_CKPT_LOCK lock. Preventing SQLite from
-    ** taking this lock also prevents any checkpoints from occurring. 
-    ** todo: really, it's not clear why this might occur, as 
-    ** wal_autocheckpoint ought to be turned off.  */
-    if( ofst==WAL_LOCK_CKPT && n==1 ) rc = SQLITE_BUSY;
-  }else{
-    int bCapture = 0;
-    if( pRbu && pRbu->eStage==RBU_STAGE_CAPTURE ){
-      bCapture = 1;
-    }
-
-    if( bCapture==0 || 0==(flags & SQLITE_SHM_UNLOCK) ){
-      rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags);
-      if( bCapture && rc==SQLITE_OK ){
-        pRbu->mLock |= (1 << ofst);
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Obtain a pointer to a mapping of a single 32KiB page of the *-shm file.
-*/
-static int rbuVfsShmMap(
-  tdsqlite3_file *pFile, 
-  int iRegion, 
-  int szRegion, 
-  int isWrite, 
-  void volatile **pp
-){
-  rbu_file *p = (rbu_file*)pFile;
-  int rc = SQLITE_OK;
-  int eStage = (p->pRbu ? p->pRbu->eStage : 0);
-
-  /* If not in RBU_STAGE_OAL, allow this call to pass through. Or, if this
-  ** rbu is in the RBU_STAGE_OAL state, use heap memory for *-shm space 
-  ** instead of a file on disk.  */
-  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
-  if( eStage==RBU_STAGE_OAL ){
-    tdsqlite3_int64 nByte = (iRegion+1) * sizeof(char*);
-    char **apNew = (char**)tdsqlite3_realloc64(p->apShm, nByte);
-
-    /* This is an RBU connection that uses its own heap memory for the
-    ** pages of the *-shm file. Since no other process can have run
-    ** recovery, the connection must request *-shm pages in order
-    ** from start to finish.  */
-    assert( iRegion==p->nShm );
-    if( apNew==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      memset(&apNew[p->nShm], 0, sizeof(char*) * (1 + iRegion - p->nShm));
-      p->apShm = apNew;
-      p->nShm = iRegion+1;
-    }
-
-    if( rc==SQLITE_OK ){
-      char *pNew = (char*)tdsqlite3_malloc64(szRegion);
-      if( pNew==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        memset(pNew, 0, szRegion);
-        p->apShm[iRegion] = pNew;
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      *pp = p->apShm[iRegion];
-    }else{
-      *pp = 0;
-    }
-  }else{
-    assert( p->apShm==0 );
-    rc = p->pReal->pMethods->xShmMap(p->pReal, iRegion, szRegion, isWrite, pp);
-  }
-
-  return rc;
-}
-
-/*
-** Memory barrier.
-*/
-static void rbuVfsShmBarrier(tdsqlite3_file *pFile){
-  rbu_file *p = (rbu_file *)pFile;
-  p->pReal->pMethods->xShmBarrier(p->pReal);
-}
-
-/*
-** The xShmUnmap method.
-*/
-static int rbuVfsShmUnmap(tdsqlite3_file *pFile, int delFlag){
-  rbu_file *p = (rbu_file*)pFile;
-  int rc = SQLITE_OK;
-  int eStage = (p->pRbu ? p->pRbu->eStage : 0);
-
-  assert( p->openFlags & (SQLITE_OPEN_MAIN_DB|SQLITE_OPEN_TEMP_DB) );
-  if( eStage==RBU_STAGE_OAL || eStage==RBU_STAGE_MOVE ){
-    /* no-op */
-  }else{
-    /* Release the checkpointer and writer locks */
-    rbuUnlockShm(p);
-    rc = p->pReal->pMethods->xShmUnmap(p->pReal, delFlag);
-  }
-  return rc;
-}
-
-/*
-** Open an rbu file handle.
-*/
-static int rbuVfsOpen(
-  tdsqlite3_vfs *pVfs,
-  const char *zName,
-  tdsqlite3_file *pFile,
-  int flags,
-  int *pOutFlags
-){
-  static tdsqlite3_io_methods rbuvfs_io_methods = {
-    2,                            /* iVersion */
-    rbuVfsClose,                  /* xClose */
-    rbuVfsRead,                   /* xRead */
-    rbuVfsWrite,                  /* xWrite */
-    rbuVfsTruncate,               /* xTruncate */
-    rbuVfsSync,                   /* xSync */
-    rbuVfsFileSize,               /* xFileSize */
-    rbuVfsLock,                   /* xLock */
-    rbuVfsUnlock,                 /* xUnlock */
-    rbuVfsCheckReservedLock,      /* xCheckReservedLock */
-    rbuVfsFileControl,            /* xFileControl */
-    rbuVfsSectorSize,             /* xSectorSize */
-    rbuVfsDeviceCharacteristics,  /* xDeviceCharacteristics */
-    rbuVfsShmMap,                 /* xShmMap */
-    rbuVfsShmLock,                /* xShmLock */
-    rbuVfsShmBarrier,             /* xShmBarrier */
-    rbuVfsShmUnmap,               /* xShmUnmap */
-    0, 0                          /* xFetch, xUnfetch */
-  };
-  rbu_vfs *pRbuVfs = (rbu_vfs*)pVfs;
-  tdsqlite3_vfs *pRealVfs = pRbuVfs->pRealVfs;
-  rbu_file *pFd = (rbu_file *)pFile;
-  int rc = SQLITE_OK;
-  const char *zOpen = zName;
-  int oflags = flags;
-
-  memset(pFd, 0, sizeof(rbu_file));
-  pFd->pReal = (tdsqlite3_file*)&pFd[1];
-  pFd->pRbuVfs = pRbuVfs;
-  pFd->openFlags = flags;
-  if( zName ){
-    if( flags & SQLITE_OPEN_MAIN_DB ){
-      /* A main database has just been opened. The following block sets
-      ** (pFd->zWal) to point to a buffer owned by SQLite that contains
-      ** the name of the *-wal file this db connection will use. SQLite
-      ** happens to pass a pointer to this buffer when using xAccess()
-      ** or xOpen() to operate on the *-wal file.  */
-      pFd->zWal = tdsqlite3_filename_wal(zName);
-    }
-    else if( flags & SQLITE_OPEN_WAL ){
-      rbu_file *pDb = rbuFindMaindb(pRbuVfs, zName, 0);
-      if( pDb ){
-        if( pDb->pRbu && pDb->pRbu->eStage==RBU_STAGE_OAL ){
-          /* This call is to open a *-wal file. Intead, open the *-oal. This
-          ** code ensures that the string passed to xOpen() is terminated by a
-          ** pair of '\0' bytes in case the VFS attempts to extract a URI 
-          ** parameter from it.  */
-          const char *zBase = zName;
-          size_t nCopy;
-          char *zCopy;
-          if( rbuIsVacuum(pDb->pRbu) ){
-            zBase = tdsqlite3_db_filename(pDb->pRbu->dbRbu, "main");
-            zBase = tdsqlite3_filename_wal(zBase);
-          }
-          nCopy = strlen(zBase);
-          zCopy = tdsqlite3_malloc64(nCopy+2);
-          if( zCopy ){
-            memcpy(zCopy, zBase, nCopy);
-            zCopy[nCopy-3] = 'o';
-            zCopy[nCopy] = '\0';
-            zCopy[nCopy+1] = '\0';
-            zOpen = (const char*)(pFd->zDel = zCopy);
-          }else{
-            rc = SQLITE_NOMEM;
-          }
-          pFd->pRbu = pDb->pRbu;
-        }
-        pDb->pWalFd = pFd;
-      }
-    }
-  }else{
-    pFd->pRbu = pRbuVfs->pRbu;
-  }
-
-  if( oflags & SQLITE_OPEN_MAIN_DB 
-   && tdsqlite3_uri_boolean(zName, "rbu_memory", 0) 
-  ){
-    assert( oflags & SQLITE_OPEN_MAIN_DB );
-    oflags =  SQLITE_OPEN_TEMP_DB | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE |
-              SQLITE_OPEN_EXCLUSIVE | SQLITE_OPEN_DELETEONCLOSE;
-    zOpen = 0;
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = pRealVfs->xOpen(pRealVfs, zOpen, pFd->pReal, oflags, pOutFlags);
-  }
-  if( pFd->pReal->pMethods ){
-    /* The xOpen() operation has succeeded. Set the tdsqlite3_file.pMethods
-    ** pointer and, if the file is a main database file, link it into the
-    ** mutex protected linked list of all such files.  */
-    pFile->pMethods = &rbuvfs_io_methods;
-    if( flags & SQLITE_OPEN_MAIN_DB ){
-      rbuMainlistAdd(pFd);
-    }
-  }else{
-    tdsqlite3_free(pFd->zDel);
-  }
-
-  return rc;
-}
-
-/*
-** Delete the file located at zPath.
-*/
-static int rbuVfsDelete(tdsqlite3_vfs *pVfs, const char *zPath, int dirSync){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  return pRealVfs->xDelete(pRealVfs, zPath, dirSync);
-}
-
-/*
-** Test for access permissions. Return true if the requested permission
-** is available, or false otherwise.
-*/
-static int rbuVfsAccess(
-  tdsqlite3_vfs *pVfs, 
-  const char *zPath, 
-  int flags, 
-  int *pResOut
-){
-  rbu_vfs *pRbuVfs = (rbu_vfs*)pVfs;
-  tdsqlite3_vfs *pRealVfs = pRbuVfs->pRealVfs;
-  int rc;
-
-  rc = pRealVfs->xAccess(pRealVfs, zPath, flags, pResOut);
-
-  /* If this call is to check if a *-wal file associated with an RBU target
-  ** database connection exists, and the RBU update is in RBU_STAGE_OAL,
-  ** the following special handling is activated:
-  **
-  **   a) if the *-wal file does exist, return SQLITE_CANTOPEN. This
-  **      ensures that the RBU extension never tries to update a database
-  **      in wal mode, even if the first page of the database file has
-  **      been damaged. 
-  **
-  **   b) if the *-wal file does not exist, claim that it does anyway,
-  **      causing SQLite to call xOpen() to open it. This call will also
-  **      be intercepted (see the rbuVfsOpen() function) and the *-oal
-  **      file opened instead.
-  */
-  if( rc==SQLITE_OK && flags==SQLITE_ACCESS_EXISTS ){
-    rbu_file *pDb = rbuFindMaindb(pRbuVfs, zPath, 1);
-    if( pDb && pDb->pRbu->eStage==RBU_STAGE_OAL ){
-      assert( pDb->pRbu );
-      if( *pResOut ){
-        rc = SQLITE_CANTOPEN;
-      }else{
-        tdsqlite3_int64 sz = 0;
-        rc = rbuVfsFileSize(&pDb->base, &sz);
-        *pResOut = (sz>0);
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Populate buffer zOut with the full canonical pathname corresponding
-** to the pathname in zPath. zOut is guaranteed to point to a buffer
-** of at least (DEVSYM_MAX_PATHNAME+1) bytes.
-*/
-static int rbuVfsFullPathname(
-  tdsqlite3_vfs *pVfs, 
-  const char *zPath, 
-  int nOut, 
-  char *zOut
-){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  return pRealVfs->xFullPathname(pRealVfs, zPath, nOut, zOut);
-}
-
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-/*
-** Open the dynamic library located at zPath and return a handle.
-*/
-static void *rbuVfsDlOpen(tdsqlite3_vfs *pVfs, const char *zPath){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  return pRealVfs->xDlOpen(pRealVfs, zPath);
-}
-
-/*
-** Populate the buffer zErrMsg (size nByte bytes) with a human readable
-** utf-8 string describing the most recent error encountered associated 
-** with dynamic libraries.
-*/
-static void rbuVfsDlError(tdsqlite3_vfs *pVfs, int nByte, char *zErrMsg){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  pRealVfs->xDlError(pRealVfs, nByte, zErrMsg);
-}
-
-/*
-** Return a pointer to the symbol zSymbol in the dynamic library pHandle.
-*/
-static void (*rbuVfsDlSym(
-  tdsqlite3_vfs *pVfs, 
-  void *pArg, 
-  const char *zSym
-))(void){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  return pRealVfs->xDlSym(pRealVfs, pArg, zSym);
-}
-
-/*
-** Close the dynamic library handle pHandle.
-*/
-static void rbuVfsDlClose(tdsqlite3_vfs *pVfs, void *pHandle){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  pRealVfs->xDlClose(pRealVfs, pHandle);
-}
-#endif /* SQLITE_OMIT_LOAD_EXTENSION */
-
-/*
-** Populate the buffer pointed to by zBufOut with nByte bytes of 
-** random data.
-*/
-static int rbuVfsRandomness(tdsqlite3_vfs *pVfs, int nByte, char *zBufOut){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  return pRealVfs->xRandomness(pRealVfs, nByte, zBufOut);
-}
-
-/*
-** Sleep for nMicro microseconds. Return the number of microseconds 
-** actually slept.
-*/
-static int rbuVfsSleep(tdsqlite3_vfs *pVfs, int nMicro){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  return pRealVfs->xSleep(pRealVfs, nMicro);
-}
-
-/*
-** Return the current time as a Julian Day number in *pTimeOut.
-*/
-static int rbuVfsCurrentTime(tdsqlite3_vfs *pVfs, double *pTimeOut){
-  tdsqlite3_vfs *pRealVfs = ((rbu_vfs*)pVfs)->pRealVfs;
-  return pRealVfs->xCurrentTime(pRealVfs, pTimeOut);
-}
-
-/*
-** No-op.
-*/
-static int rbuVfsGetLastError(tdsqlite3_vfs *pVfs, int a, char *b){
-  return 0;
-}
-
-/*
-** Deregister and destroy an RBU vfs created by an earlier call to
-** tdsqlite3rbu_create_vfs().
-*/
-SQLITE_API void tdsqlite3rbu_destroy_vfs(const char *zName){
-  tdsqlite3_vfs *pVfs = tdsqlite3_vfs_find(zName);
-  if( pVfs && pVfs->xOpen==rbuVfsOpen ){
-    tdsqlite3_mutex_free(((rbu_vfs*)pVfs)->mutex);
-    tdsqlite3_vfs_unregister(pVfs);
-    tdsqlite3_free(pVfs);
-  }
-}
-
-/*
-** Create an RBU VFS named zName that accesses the underlying file-system
-** via existing VFS zParent. The new object is registered as a non-default
-** VFS with SQLite before returning.
-*/
-SQLITE_API int tdsqlite3rbu_create_vfs(const char *zName, const char *zParent){
-
-  /* Template for VFS */
-  static tdsqlite3_vfs vfs_template = {
-    1,                            /* iVersion */
-    0,                            /* szOsFile */
-    0,                            /* mxPathname */
-    0,                            /* pNext */
-    0,                            /* zName */
-    0,                            /* pAppData */
-    rbuVfsOpen,                   /* xOpen */
-    rbuVfsDelete,                 /* xDelete */
-    rbuVfsAccess,                 /* xAccess */
-    rbuVfsFullPathname,           /* xFullPathname */
-
-#ifndef SQLITE_OMIT_LOAD_EXTENSION
-    rbuVfsDlOpen,                 /* xDlOpen */
-    rbuVfsDlError,                /* xDlError */
-    rbuVfsDlSym,                  /* xDlSym */
-    rbuVfsDlClose,                /* xDlClose */
-#else
-    0, 0, 0, 0,
-#endif
-
-    rbuVfsRandomness,             /* xRandomness */
-    rbuVfsSleep,                  /* xSleep */
-    rbuVfsCurrentTime,            /* xCurrentTime */
-    rbuVfsGetLastError,           /* xGetLastError */
-    0,                            /* xCurrentTimeInt64 (version 2) */
-    0, 0, 0                       /* Unimplemented version 3 methods */
-  };
-
-  rbu_vfs *pNew = 0;              /* Newly allocated VFS */
-  int rc = SQLITE_OK;
-  size_t nName;
-  size_t nByte;
-
-  nName = strlen(zName);
-  nByte = sizeof(rbu_vfs) + nName + 1;
-  pNew = (rbu_vfs*)tdsqlite3_malloc64(nByte);
-  if( pNew==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    tdsqlite3_vfs *pParent;           /* Parent VFS */
-    memset(pNew, 0, nByte);
-    pParent = tdsqlite3_vfs_find(zParent);
-    if( pParent==0 ){
-      rc = SQLITE_NOTFOUND;
-    }else{
-      char *zSpace;
-      memcpy(&pNew->base, &vfs_template, sizeof(tdsqlite3_vfs));
-      pNew->base.mxPathname = pParent->mxPathname;
-      pNew->base.szOsFile = sizeof(rbu_file) + pParent->szOsFile;
-      pNew->pRealVfs = pParent;
-      pNew->base.zName = (const char*)(zSpace = (char*)&pNew[1]);
-      memcpy(zSpace, zName, nName);
-
-      /* Allocate the mutex and register the new VFS (not as the default) */
-      pNew->mutex = tdsqlite3_mutex_alloc(SQLITE_MUTEX_RECURSIVE);
-      if( pNew->mutex==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        rc = tdsqlite3_vfs_register(&pNew->base, 0);
-      }
-    }
-
-    if( rc!=SQLITE_OK ){
-      tdsqlite3_mutex_free(pNew->mutex);
-      tdsqlite3_free(pNew);
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Configure the aggregate temp file size limit for this RBU handle.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3rbu_temp_size_limit(tdsqlite3rbu *pRbu, tdsqlite3_int64 n){
-  if( n>=0 ){
-    pRbu->szTempLimit = n;
-  }
-  return pRbu->szTempLimit;
-}
-
-SQLITE_API tdsqlite3_int64 tdsqlite3rbu_temp_size(tdsqlite3rbu *pRbu){
-  return pRbu->szTemp;
-}
-
-
-/**************************************************************************/
-
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_RBU) */
-
-/************** End of tdsqlite3rbu.c ******************************************/
-/************** Begin file dbstat.c ******************************************/
-/*
-** 2010 July 12
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains an implementation of the "dbstat" virtual table.
-**
-** The dbstat virtual table is used to extract low-level storage
-** information from an SQLite database in order to implement the
-** "tdsqlite3_analyzer" utility.  See the ../tool/spaceanal.tcl script
-** for an example implementation.
-**
-** Additional information is available on the "dbstat.html" page of the
-** official SQLite documentation.
-*/
-
-/* #include "sqliteInt.h"   ** Requires access to internal data structures ** */
-#if (defined(SQLITE_ENABLE_DBSTAT_VTAB) || defined(SQLITE_TEST)) \
-    && !defined(SQLITE_OMIT_VIRTUALTABLE)
-
-/*
-** Page paths:
-** 
-**   The value of the 'path' column describes the path taken from the 
-**   root-node of the b-tree structure to each page. The value of the 
-**   root-node path is '/'.
-**
-**   The value of the path for the left-most child page of the root of
-**   a b-tree is '/000/'. (Btrees store content ordered from left to right
-**   so the pages to the left have smaller keys than the pages to the right.)
-**   The next to left-most child of the root page is
-**   '/001', and so on, each sibling page identified by a 3-digit hex 
-**   value. The children of the 451st left-most sibling have paths such
-**   as '/1c2/000/, '/1c2/001/' etc.
-**
-**   Overflow pages are specified by appending a '+' character and a 
-**   six-digit hexadecimal value to the path to the cell they are linked
-**   from. For example, the three overflow pages in a chain linked from 
-**   the left-most cell of the 450th child of the root page are identified
-**   by the paths:
-**
-**      '/1c2/000+000000'         // First page in overflow chain
-**      '/1c2/000+000001'         // Second page in overflow chain
-**      '/1c2/000+000002'         // Third page in overflow chain
-**
-**   If the paths are sorted using the BINARY collation sequence, then
-**   the overflow pages associated with a cell will appear earlier in the
-**   sort-order than its child page:
-**
-**      '/1c2/000/'               // Left-most child of 451st child of root
-*/
-static const char zDbstatSchema[] = 
-  "CREATE TABLE x("
-  " name       TEXT,"          /*  0 Name of table or index */
-  " path       TEXT,"          /*  1 Path to page from root (NULL for agg) */
-  " pageno     INTEGER,"       /*  2 Page number (page count for aggregates) */
-  " pagetype   TEXT,"          /*  3 'internal', 'leaf', 'overflow', or NULL */
-  " ncell      INTEGER,"       /*  4 Cells on page (0 for overflow) */
-  " payload    INTEGER,"       /*  5 Bytes of payload on this page */
-  " unused     INTEGER,"       /*  6 Bytes of unused space on this page */
-  " mx_payload INTEGER,"       /*  7 Largest payload size of all cells */
-  " pgoffset   INTEGER,"       /*  8 Offset of page in file (NULL for agg) */
-  " pgsize     INTEGER,"       /*  9 Size of the page (sum for aggregate) */
-  " schema     TEXT HIDDEN,"   /* 10 Database schema being analyzed */
-  " aggregate  BOOLEAN HIDDEN" /* 11 aggregate info for each table */
-  ")"
-;
-
-/* Forward reference to data structured used in this module */
-typedef struct StatTable StatTable;
-typedef struct StatCursor StatCursor;
-typedef struct StatPage StatPage;
-typedef struct StatCell StatCell;
-
-/* Size information for a single cell within a btree page */
-struct StatCell {
-  int nLocal;                     /* Bytes of local payload */
-  u32 iChildPg;                   /* Child node (or 0 if this is a leaf) */
-  int nOvfl;                      /* Entries in aOvfl[] */
-  u32 *aOvfl;                     /* Array of overflow page numbers */
-  int nLastOvfl;                  /* Bytes of payload on final overflow page */
-  int iOvfl;                      /* Iterates through aOvfl[] */
-};
-
-/* Size information for a single btree page */
-struct StatPage {
-  u32 iPgno;                      /* Page number */
-  DbPage *pPg;                    /* Page content */
-  int iCell;                      /* Current cell */
-
-  char *zPath;                    /* Path to this page */
-
-  /* Variables populated by statDecodePage(): */
-  u8 flags;                       /* Copy of flags byte */
-  int nCell;                      /* Number of cells on page */
-  int nUnused;                    /* Number of unused bytes on page */
-  StatCell *aCell;                /* Array of parsed cells */
-  u32 iRightChildPg;              /* Right-child page number (or 0) */
-  int nMxPayload;                 /* Largest payload of any cell on the page */
-};
-
-/* The cursor for scanning the dbstat virtual table */
-struct StatCursor {
-  tdsqlite3_vtab_cursor base;       /* base class.  MUST BE FIRST! */
-  tdsqlite3_stmt *pStmt;            /* Iterates through set of root pages */
-  u8 isEof;                       /* After pStmt has returned SQLITE_DONE */
-  u8 isAgg;                       /* Aggregate results for each table */
-  int iDb;                        /* Schema used for this query */
-
-  StatPage aPage[32];             /* Pages in path to current page */
-  int iPage;                      /* Current entry in aPage[] */
-
-  /* Values to return. */
-  u32 iPageno;                    /* Value of 'pageno' column */
-  char *zName;                    /* Value of 'name' column */
-  char *zPath;                    /* Value of 'path' column */
-  char *zPagetype;                /* Value of 'pagetype' column */
-  int nPage;                      /* Number of pages in current btree */
-  int nCell;                      /* Value of 'ncell' column */
-  int nMxPayload;                 /* Value of 'mx_payload' column */
-  i64 nUnused;                    /* Value of 'unused' column */
-  i64 nPayload;                   /* Value of 'payload' column */
-  i64 iOffset;                    /* Value of 'pgOffset' column */
-  i64 szPage;                     /* Value of 'pgSize' column */
-};
-
-/* An instance of the DBSTAT virtual table */
-struct StatTable {
-  tdsqlite3_vtab base;              /* base class.  MUST BE FIRST! */
-  tdsqlite3 *db;                    /* Database connection that owns this vtab */
-  int iDb;                        /* Index of database to analyze */
-};
-
-#ifndef get2byte
-# define get2byte(x)   ((x)[0]<<8 | (x)[1])
-#endif
-
-/*
-** Connect to or create a new DBSTAT virtual table.
-*/
-static int statConnect(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  StatTable *pTab = 0;
-  int rc = SQLITE_OK;
-  int iDb;
-
-  if( argc>=4 ){
-    Token nm;
-    tdsqlite3TokenInit(&nm, (char*)argv[3]);
-    iDb = tdsqlite3FindDb(db, &nm);
-    if( iDb<0 ){
-      *pzErr = tdsqlite3_mprintf("no such database: %s", argv[3]);
-      return SQLITE_ERROR;
-    }
-  }else{
-    iDb = 0;
-  }
-  tdsqlite3_vtab_config(db, SQLITE_VTAB_DIRECTONLY);
-  rc = tdsqlite3_declare_vtab(db, zDbstatSchema);
-  if( rc==SQLITE_OK ){
-    pTab = (StatTable *)tdsqlite3_malloc64(sizeof(StatTable));
-    if( pTab==0 ) rc = SQLITE_NOMEM_BKPT;
-  }
-
-  assert( rc==SQLITE_OK || pTab==0 );
-  if( rc==SQLITE_OK ){
-    memset(pTab, 0, sizeof(StatTable));
-    pTab->db = db;
-    pTab->iDb = iDb;
-  }
-
-  *ppVtab = (tdsqlite3_vtab*)pTab;
-  return rc;
-}
-
-/*
-** Disconnect from or destroy the DBSTAT virtual table.
-*/
-static int statDisconnect(tdsqlite3_vtab *pVtab){
-  tdsqlite3_free(pVtab);
-  return SQLITE_OK;
-}
-
-/*
-** Compute the best query strategy and return the result in idxNum.
-**
-**   idxNum-Bit        Meaning
-**   ----------        ----------------------------------------------
-**      0x01           There is a schema=? term in the WHERE clause
-**      0x02           There is a name=? term in the WHERE clause
-**      0x04           There is an aggregate=? term in the WHERE clause
-**      0x08           Output should be ordered by name and path
-*/
-static int statBestIndex(tdsqlite3_vtab *tab, tdsqlite3_index_info *pIdxInfo){
-  int i;
-  int iSchema = -1;
-  int iName = -1;
-  int iAgg = -1;
-
-  /* Look for a valid schema=? constraint.  If found, change the idxNum to
-  ** 1 and request the value of that constraint be sent to xFilter.  And
-  ** lower the cost estimate to encourage the constrained version to be
-  ** used.
-  */
-  for(i=0; i<pIdxInfo->nConstraint; i++){
-    if( pIdxInfo->aConstraint[i].op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
-    if( pIdxInfo->aConstraint[i].usable==0 ){
-      /* Force DBSTAT table should always be the right-most table in a join */
-      return SQLITE_CONSTRAINT;
-    }
-    switch( pIdxInfo->aConstraint[i].iColumn ){
-      case 0: {    /* name */
-        iName = i;
-        break;
-      }
-      case 10: {   /* schema */
-        iSchema = i;
-        break;
-      }
-      case 11: {   /* aggregate */
-        iAgg = i;
-        break;
-      }
-    }
-  }
-  i = 0;
-  if( iSchema>=0 ){
-    pIdxInfo->aConstraintUsage[iSchema].argvIndex = ++i;
-    pIdxInfo->idxNum |= 0x01;
-  }
-  if( iName>=0 ){
-    pIdxInfo->aConstraintUsage[iName].argvIndex = ++i;
-    pIdxInfo->idxNum |= 0x02;
-  }
-  if( iAgg>=0 ){
-    pIdxInfo->aConstraintUsage[iAgg].argvIndex = ++i;
-    pIdxInfo->idxNum |= 0x04;
-  }
-  pIdxInfo->estimatedCost = 1.0;
-
-  /* Records are always returned in ascending order of (name, path). 
-  ** If this will satisfy the client, set the orderByConsumed flag so that 
-  ** SQLite does not do an external sort.
-  */
-  if( ( pIdxInfo->nOrderBy==1
-     && pIdxInfo->aOrderBy[0].iColumn==0
-     && pIdxInfo->aOrderBy[0].desc==0
-     ) ||
-      ( pIdxInfo->nOrderBy==2
-     && pIdxInfo->aOrderBy[0].iColumn==0
-     && pIdxInfo->aOrderBy[0].desc==0
-     && pIdxInfo->aOrderBy[1].iColumn==1
-     && pIdxInfo->aOrderBy[1].desc==0
-     )
-  ){
-    pIdxInfo->orderByConsumed = 1;
-    pIdxInfo->idxNum |= 0x08;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** Open a new DBSTAT cursor.
-*/
-static int statOpen(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCursor){
-  StatTable *pTab = (StatTable *)pVTab;
-  StatCursor *pCsr;
-
-  pCsr = (StatCursor *)tdsqlite3_malloc64(sizeof(StatCursor));
-  if( pCsr==0 ){
-    return SQLITE_NOMEM_BKPT;
-  }else{
-    memset(pCsr, 0, sizeof(StatCursor));
-    pCsr->base.pVtab = pVTab;
-    pCsr->iDb = pTab->iDb;
-  }
-
-  *ppCursor = (tdsqlite3_vtab_cursor *)pCsr;
-  return SQLITE_OK;
-}
-
-static void statClearCells(StatPage *p){
-  int i;
-  if( p->aCell ){
-    for(i=0; i<p->nCell; i++){
-      tdsqlite3_free(p->aCell[i].aOvfl);
-    }
-    tdsqlite3_free(p->aCell);
-  }
-  p->nCell = 0;
-  p->aCell = 0;
-}
-
-static void statClearPage(StatPage *p){
-  statClearCells(p);
-  tdsqlite3PagerUnref(p->pPg);
-  tdsqlite3_free(p->zPath);
-  memset(p, 0, sizeof(StatPage));
-}
-
-static void statResetCsr(StatCursor *pCsr){
-  int i;
-  tdsqlite3_reset(pCsr->pStmt);
-  for(i=0; i<ArraySize(pCsr->aPage); i++){
-    statClearPage(&pCsr->aPage[i]);
-  }
-  pCsr->iPage = 0;
-  tdsqlite3_free(pCsr->zPath);
-  pCsr->zPath = 0;
-  pCsr->isEof = 0;
-}
-
-/* Resize the space-used counters inside of the cursor */
-static void statResetCounts(StatCursor *pCsr){
-  pCsr->nCell = 0;
-  pCsr->nMxPayload = 0;
-  pCsr->nUnused = 0;
-  pCsr->nPayload = 0;
-  pCsr->szPage = 0;
-  pCsr->nPage = 0;
-}
-
-/*
-** Close a DBSTAT cursor.
-*/
-static int statClose(tdsqlite3_vtab_cursor *pCursor){
-  StatCursor *pCsr = (StatCursor *)pCursor;
-  statResetCsr(pCsr);
-  tdsqlite3_finalize(pCsr->pStmt);
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-/*
-** For a single cell on a btree page, compute the number of bytes of
-** content (payload) stored on that page.  That is to say, compute the
-** number of bytes of content not found on overflow pages.
-*/
-static int getLocalPayload(
-  int nUsable,                    /* Usable bytes per page */
-  u8 flags,                       /* Page flags */
-  int nTotal                      /* Total record (payload) size */
-){
-  int nLocal;
-  int nMinLocal;
-  int nMaxLocal;
- 
-  if( flags==0x0D ){              /* Table leaf node */
-    nMinLocal = (nUsable - 12) * 32 / 255 - 23;
-    nMaxLocal = nUsable - 35;
-  }else{                          /* Index interior and leaf nodes */
-    nMinLocal = (nUsable - 12) * 32 / 255 - 23;
-    nMaxLocal = (nUsable - 12) * 64 / 255 - 23;
-  }
-
-  nLocal = nMinLocal + (nTotal - nMinLocal) % (nUsable - 4);
-  if( nLocal>nMaxLocal ) nLocal = nMinLocal;
-  return nLocal;
-}
-
-/* Populate the StatPage object with information about the all
-** cells found on the page currently under analysis.
-*/
-static int statDecodePage(Btree *pBt, StatPage *p){
-  int nUnused;
-  int iOff;
-  int nHdr;
-  int isLeaf;
-  int szPage;
-
-  u8 *aData = tdsqlite3PagerGetData(p->pPg);
-  u8 *aHdr = &aData[p->iPgno==1 ? 100 : 0];
-
-  p->flags = aHdr[0];
-  if( p->flags==0x0A || p->flags==0x0D ){
-    isLeaf = 1;
-    nHdr = 8;
-  }else if( p->flags==0x05 || p->flags==0x02 ){
-    isLeaf = 0;
-    nHdr = 12;
-  }else{
-    goto statPageIsCorrupt;
-  }
-  if( p->iPgno==1 ) nHdr += 100;
-  p->nCell = get2byte(&aHdr[3]);
-  p->nMxPayload = 0;
-  szPage = tdsqlite3BtreeGetPageSize(pBt);
-
-  nUnused = get2byte(&aHdr[5]) - nHdr - 2*p->nCell;
-  nUnused += (int)aHdr[7];
-  iOff = get2byte(&aHdr[1]);
-  while( iOff ){
-    int iNext;
-    if( iOff>=szPage ) goto statPageIsCorrupt;
-    nUnused += get2byte(&aData[iOff+2]);
-    iNext = get2byte(&aData[iOff]);
-    if( iNext<iOff+4 && iNext>0 ) goto statPageIsCorrupt;
-    iOff = iNext;
-  }
-  p->nUnused = nUnused;
-  p->iRightChildPg = isLeaf ? 0 : tdsqlite3Get4byte(&aHdr[8]);
-
-  if( p->nCell ){
-    int i;                        /* Used to iterate through cells */
-    int nUsable;                  /* Usable bytes per page */
-
-    tdsqlite3BtreeEnter(pBt);
-    nUsable = szPage - tdsqlite3BtreeGetReserveNoMutex(pBt);
-    tdsqlite3BtreeLeave(pBt);
-    p->aCell = tdsqlite3_malloc64((p->nCell+1) * sizeof(StatCell));
-    if( p->aCell==0 ) return SQLITE_NOMEM_BKPT;
-    memset(p->aCell, 0, (p->nCell+1) * sizeof(StatCell));
-
-    for(i=0; i<p->nCell; i++){
-      StatCell *pCell = &p->aCell[i];
-
-      iOff = get2byte(&aData[nHdr+i*2]);
-      if( iOff<nHdr || iOff>=szPage ) goto statPageIsCorrupt;
-      if( !isLeaf ){
-        pCell->iChildPg = tdsqlite3Get4byte(&aData[iOff]);
-        iOff += 4;
-      }
-      if( p->flags==0x05 ){
-        /* A table interior node. nPayload==0. */
-      }else{
-        u32 nPayload;             /* Bytes of payload total (local+overflow) */
-        int nLocal;               /* Bytes of payload stored locally */
-        iOff += getVarint32(&aData[iOff], nPayload);
-        if( p->flags==0x0D ){
-          u64 dummy;
-          iOff += tdsqlite3GetVarint(&aData[iOff], &dummy);
-        }
-        if( nPayload>(u32)p->nMxPayload ) p->nMxPayload = nPayload;
-        nLocal = getLocalPayload(nUsable, p->flags, nPayload);
-        if( nLocal<0 ) goto statPageIsCorrupt;
-        pCell->nLocal = nLocal;
-        assert( nPayload>=(u32)nLocal );
-        assert( nLocal<=(nUsable-35) );
-        if( nPayload>(u32)nLocal ){
-          int j;
-          int nOvfl = ((nPayload - nLocal) + nUsable-4 - 1) / (nUsable - 4);
-          if( iOff+nLocal>nUsable ) goto statPageIsCorrupt;
-          pCell->nLastOvfl = (nPayload-nLocal) - (nOvfl-1) * (nUsable-4);
-          pCell->nOvfl = nOvfl;
-          pCell->aOvfl = tdsqlite3_malloc64(sizeof(u32)*nOvfl);
-          if( pCell->aOvfl==0 ) return SQLITE_NOMEM_BKPT;
-          pCell->aOvfl[0] = tdsqlite3Get4byte(&aData[iOff+nLocal]);
-          for(j=1; j<nOvfl; j++){
-            int rc;
-            u32 iPrev = pCell->aOvfl[j-1];
-            DbPage *pPg = 0;
-            rc = tdsqlite3PagerGet(tdsqlite3BtreePager(pBt), iPrev, &pPg, 0);
-            if( rc!=SQLITE_OK ){
-              assert( pPg==0 );
-              return rc;
-            } 
-            pCell->aOvfl[j] = tdsqlite3Get4byte(tdsqlite3PagerGetData(pPg));
-            tdsqlite3PagerUnref(pPg);
-          }
-        }
-      }
-    }
-  }
-
-  return SQLITE_OK;
-
-statPageIsCorrupt:
-  p->flags = 0;
-  statClearCells(p);
-  return SQLITE_OK;
-}
-
-/*
-** Populate the pCsr->iOffset and pCsr->szPage member variables. Based on
-** the current value of pCsr->iPageno.
-*/
-static void statSizeAndOffset(StatCursor *pCsr){
-  StatTable *pTab = (StatTable *)((tdsqlite3_vtab_cursor *)pCsr)->pVtab;
-  Btree *pBt = pTab->db->aDb[pTab->iDb].pBt;
-  Pager *pPager = tdsqlite3BtreePager(pBt);
-  tdsqlite3_file *fd;
-  tdsqlite3_int64 x[2];
-
-  /* If connected to a ZIPVFS backend, find the page size and
-  ** offset from ZIPVFS.
-  */
-  fd = tdsqlite3PagerFile(pPager);
-  x[0] = pCsr->iPageno;
-  if( tdsqlite3OsFileControl(fd, 230440, &x)==SQLITE_OK ){
-    pCsr->iOffset = x[0];
-    pCsr->szPage += x[1];
-  }else{
-    /* Not ZIPVFS: The default page size and offset */
-    pCsr->szPage += tdsqlite3BtreeGetPageSize(pBt);
-    pCsr->iOffset = (i64)pCsr->szPage * (pCsr->iPageno - 1);
-  }
-}
-
-/*
-** Move a DBSTAT cursor to the next entry.  Normally, the next
-** entry will be the next page, but in aggregated mode (pCsr->isAgg!=0),
-** the next entry is the next btree.
-*/
-static int statNext(tdsqlite3_vtab_cursor *pCursor){
-  int rc;
-  int nPayload;
-  char *z;
-  StatCursor *pCsr = (StatCursor *)pCursor;
-  StatTable *pTab = (StatTable *)pCursor->pVtab;
-  Btree *pBt = pTab->db->aDb[pCsr->iDb].pBt;
-  Pager *pPager = tdsqlite3BtreePager(pBt);
-
-  tdsqlite3_free(pCsr->zPath);
-  pCsr->zPath = 0;
-
-statNextRestart:
-  if( pCsr->aPage[0].pPg==0 ){
-    /* Start measuring space on the next btree */
-    statResetCounts(pCsr);
-    rc = tdsqlite3_step(pCsr->pStmt);
-    if( rc==SQLITE_ROW ){
-      int nPage;
-      u32 iRoot = (u32)tdsqlite3_column_int64(pCsr->pStmt, 1);
-      tdsqlite3PagerPagecount(pPager, &nPage);
-      if( nPage==0 ){
-        pCsr->isEof = 1;
-        return tdsqlite3_reset(pCsr->pStmt);
-      }
-      rc = tdsqlite3PagerGet(pPager, iRoot, &pCsr->aPage[0].pPg, 0);
-      pCsr->aPage[0].iPgno = iRoot;
-      pCsr->aPage[0].iCell = 0;
-      if( !pCsr->isAgg ){
-        pCsr->aPage[0].zPath = z = tdsqlite3_mprintf("/");
-        if( z==0 ) rc = SQLITE_NOMEM_BKPT;
-      }
-      pCsr->iPage = 0;
-      pCsr->nPage = 1;
-    }else{
-      pCsr->isEof = 1;
-      return tdsqlite3_reset(pCsr->pStmt);
-    }
-  }else{
-    /* Continue analyzing the btree previously started */
-    StatPage *p = &pCsr->aPage[pCsr->iPage];
-    if( !pCsr->isAgg ) statResetCounts(pCsr);
-    while( p->iCell<p->nCell ){
-      StatCell *pCell = &p->aCell[p->iCell];
-      while( pCell->iOvfl<pCell->nOvfl ){
-        int nUsable, iOvfl;
-        tdsqlite3BtreeEnter(pBt);
-        nUsable = tdsqlite3BtreeGetPageSize(pBt) - 
-                        tdsqlite3BtreeGetReserveNoMutex(pBt);
-        tdsqlite3BtreeLeave(pBt);
-        pCsr->nPage++;
-        statSizeAndOffset(pCsr);
-        if( pCell->iOvfl<pCell->nOvfl-1 ){
-          pCsr->nPayload += nUsable - 4;
-        }else{
-          pCsr->nPayload += pCell->nLastOvfl;
-          pCsr->nUnused += nUsable - 4 - pCell->nLastOvfl;
-        }
-        iOvfl = pCell->iOvfl;
-        pCell->iOvfl++;
-        if( !pCsr->isAgg ){
-          pCsr->zName = (char *)tdsqlite3_column_text(pCsr->pStmt, 0);
-          pCsr->iPageno = pCell->aOvfl[iOvfl];
-          pCsr->zPagetype = "overflow";
-          pCsr->zPath = z = tdsqlite3_mprintf(
-              "%s%.3x+%.6x", p->zPath, p->iCell, iOvfl
-          );
-          return z==0 ? SQLITE_NOMEM_BKPT : SQLITE_OK;
-        }
-      }
-      if( p->iRightChildPg ) break;
-      p->iCell++;
-    }
-
-    if( !p->iRightChildPg || p->iCell>p->nCell ){
-      statClearPage(p);
-      if( pCsr->iPage>0 ){
-        pCsr->iPage--;
-      }else if( pCsr->isAgg ){
-        /* label-statNext-done:  When computing aggregate space usage over
-        ** an entire btree, this is the exit point from this function */
-        return SQLITE_OK;
-      }
-      goto statNextRestart; /* Tail recursion */
-    }
-    pCsr->iPage++;
-    if( pCsr->iPage>=ArraySize(pCsr->aPage) ){
-      statResetCsr(pCsr);
-      return SQLITE_CORRUPT_BKPT;
-    }
-    assert( p==&pCsr->aPage[pCsr->iPage-1] );
-
-    if( p->iCell==p->nCell ){
-      p[1].iPgno = p->iRightChildPg;
-    }else{
-      p[1].iPgno = p->aCell[p->iCell].iChildPg;
-    }
-    rc = tdsqlite3PagerGet(pPager, p[1].iPgno, &p[1].pPg, 0);
-    pCsr->nPage++;
-    p[1].iCell = 0;
-    if( !pCsr->isAgg ){
-      p[1].zPath = z = tdsqlite3_mprintf("%s%.3x/", p->zPath, p->iCell);
-      if( z==0 ) rc = SQLITE_NOMEM_BKPT;
-    }
-    p->iCell++;
-  }
-
-
-  /* Populate the StatCursor fields with the values to be returned
-  ** by the xColumn() and xRowid() methods.
-  */
-  if( rc==SQLITE_OK ){
-    int i;
-    StatPage *p = &pCsr->aPage[pCsr->iPage];
-    pCsr->zName = (char *)tdsqlite3_column_text(pCsr->pStmt, 0);
-    pCsr->iPageno = p->iPgno;
-
-    rc = statDecodePage(pBt, p);
-    if( rc==SQLITE_OK ){
-      statSizeAndOffset(pCsr);
-
-      switch( p->flags ){
-        case 0x05:             /* table internal */
-        case 0x02:             /* index internal */
-          pCsr->zPagetype = "internal";
-          break;
-        case 0x0D:             /* table leaf */
-        case 0x0A:             /* index leaf */
-          pCsr->zPagetype = "leaf";
-          break;
-        default:
-          pCsr->zPagetype = "corrupted";
-          break;
-      }
-      pCsr->nCell += p->nCell;
-      pCsr->nUnused += p->nUnused;
-      if( p->nMxPayload>pCsr->nMxPayload ) pCsr->nMxPayload = p->nMxPayload;
-      if( !pCsr->isAgg ){
-        pCsr->zPath = z = tdsqlite3_mprintf("%s", p->zPath);
-        if( z==0 ) rc = SQLITE_NOMEM_BKPT;
-      }
-      nPayload = 0;
-      for(i=0; i<p->nCell; i++){
-        nPayload += p->aCell[i].nLocal;
-      }
-      pCsr->nPayload += nPayload;
-
-      /* If computing aggregate space usage by btree, continue with the
-      ** next page.  The loop will exit via the return at label-statNext-done
-      */
-      if( pCsr->isAgg ) goto statNextRestart;
-    }
-  }
-
-  return rc;
-}
-
-static int statEof(tdsqlite3_vtab_cursor *pCursor){
-  StatCursor *pCsr = (StatCursor *)pCursor;
-  return pCsr->isEof;
-}
-
-/* Initialize a cursor according to the query plan idxNum using the
-** arguments in argv[0].  See statBestIndex() for a description of the
-** meaning of the bits in idxNum.
-*/
-static int statFilter(
-  tdsqlite3_vtab_cursor *pCursor, 
-  int idxNum, const char *idxStr,
-  int argc, tdsqlite3_value **argv
-){
-  StatCursor *pCsr = (StatCursor *)pCursor;
-  StatTable *pTab = (StatTable*)(pCursor->pVtab);
-  tdsqlite3_str *pSql;      /* Query of btrees to analyze */
-  char *zSql;             /* String value of pSql */
-  int iArg = 0;           /* Count of argv[] parameters used so far */
-  int rc = SQLITE_OK;     /* Result of this operation */
-  const char *zName = 0;  /* Only provide analysis of this table */
-
-  statResetCsr(pCsr);
-  tdsqlite3_finalize(pCsr->pStmt);
-  pCsr->pStmt = 0;
-  if( idxNum & 0x01 ){
-    /* schema=? constraint is present.  Get its value */
-    const char *zDbase = (const char*)tdsqlite3_value_text(argv[iArg++]);
-    pCsr->iDb = tdsqlite3FindDbName(pTab->db, zDbase);
-    if( pCsr->iDb<0 ){
-      pCsr->iDb = 0;
-      pCsr->isEof = 1;
-      return SQLITE_OK;
-    }
-  }else{
-    pCsr->iDb = pTab->iDb;
-  }
-  if( idxNum & 0x02 ){
-    /* name=? constraint is present */
-    zName = (const char*)tdsqlite3_value_text(argv[iArg++]);
-  }
-  if( idxNum & 0x04 ){
-    /* aggregate=? constraint is present */
-    pCsr->isAgg = tdsqlite3_value_double(argv[iArg++])!=0.0;
-  }else{
-    pCsr->isAgg = 0;
-  }
-  pSql = tdsqlite3_str_new(pTab->db);
-  tdsqlite3_str_appendf(pSql,
-      "SELECT * FROM ("
-        "SELECT 'sqlite_master' AS name,1 AS rootpage,'table' AS type"
-        " UNION ALL "
-        "SELECT name,rootpage,type"
-        " FROM \"%w\".sqlite_master WHERE rootpage!=0)",
-      pTab->db->aDb[pCsr->iDb].zDbSName);
-  if( zName ){
-    tdsqlite3_str_appendf(pSql, "WHERE name=%Q", zName);
-  }
-  if( idxNum & 0x08 ){
-    tdsqlite3_str_appendf(pSql, " ORDER BY name");
-  }
-  zSql = tdsqlite3_str_finish(pSql);
-  if( zSql==0 ){
-    return SQLITE_NOMEM_BKPT;
-  }else{
-    rc = tdsqlite3_prepare_v2(pTab->db, zSql, -1, &pCsr->pStmt, 0);
-    tdsqlite3_free(zSql);
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = statNext(pCursor);
-  }
-  return rc;
-}
-
-static int statColumn(
-  tdsqlite3_vtab_cursor *pCursor, 
-  tdsqlite3_context *ctx, 
-  int i
-){
-  StatCursor *pCsr = (StatCursor *)pCursor;
-  switch( i ){
-    case 0:            /* name */
-      tdsqlite3_result_text(ctx, pCsr->zName, -1, SQLITE_TRANSIENT);
-      break;
-    case 1:            /* path */
-      if( !pCsr->isAgg ){
-        tdsqlite3_result_text(ctx, pCsr->zPath, -1, SQLITE_TRANSIENT);
-      }
-      break;
-    case 2:            /* pageno */
-      if( pCsr->isAgg ){
-        tdsqlite3_result_int64(ctx, pCsr->nPage);
-      }else{
-        tdsqlite3_result_int64(ctx, pCsr->iPageno);
-      }
-      break;
-    case 3:            /* pagetype */
-      if( !pCsr->isAgg ){
-        tdsqlite3_result_text(ctx, pCsr->zPagetype, -1, SQLITE_STATIC);
-      }
-      break;
-    case 4:            /* ncell */
-      tdsqlite3_result_int(ctx, pCsr->nCell);
-      break;
-    case 5:            /* payload */
-      tdsqlite3_result_int(ctx, pCsr->nPayload);
-      break;
-    case 6:            /* unused */
-      tdsqlite3_result_int(ctx, pCsr->nUnused);
-      break;
-    case 7:            /* mx_payload */
-      tdsqlite3_result_int(ctx, pCsr->nMxPayload);
-      break;
-    case 8:            /* pgoffset */
-      if( !pCsr->isAgg ){
-        tdsqlite3_result_int64(ctx, pCsr->iOffset);
-      }
-      break;
-    case 9:            /* pgsize */
-      tdsqlite3_result_int(ctx, pCsr->szPage);
-      break;
-    case 10: {         /* schema */
-      tdsqlite3 *db = tdsqlite3_context_db_handle(ctx);
-      int iDb = pCsr->iDb;
-      tdsqlite3_result_text(ctx, db->aDb[iDb].zDbSName, -1, SQLITE_STATIC);
-      break;
-    }
-    default: {         /* aggregate */
-      tdsqlite3_result_int(ctx, pCsr->isAgg);
-      break;
-    }
-  }
-  return SQLITE_OK;
-}
-
-static int statRowid(tdsqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
-  StatCursor *pCsr = (StatCursor *)pCursor;
-  *pRowid = pCsr->iPageno;
-  return SQLITE_OK;
-}
-
-/*
-** Invoke this routine to register the "dbstat" virtual table module
-*/
-SQLITE_PRIVATE int tdsqlite3DbstatRegister(tdsqlite3 *db){
-  static tdsqlite3_module dbstat_module = {
-    0,                            /* iVersion */
-    statConnect,                  /* xCreate */
-    statConnect,                  /* xConnect */
-    statBestIndex,                /* xBestIndex */
-    statDisconnect,               /* xDisconnect */
-    statDisconnect,               /* xDestroy */
-    statOpen,                     /* xOpen - open a cursor */
-    statClose,                    /* xClose - close a cursor */
-    statFilter,                   /* xFilter - configure scan constraints */
-    statNext,                     /* xNext - advance a cursor */
-    statEof,                      /* xEof - check for end of scan */
-    statColumn,                   /* xColumn - read data */
-    statRowid,                    /* xRowid - read data */
-    0,                            /* xUpdate */
-    0,                            /* xBegin */
-    0,                            /* xSync */
-    0,                            /* xCommit */
-    0,                            /* xRollback */
-    0,                            /* xFindMethod */
-    0,                            /* xRename */
-    0,                            /* xSavepoint */
-    0,                            /* xRelease */
-    0,                            /* xRollbackTo */
-    0                             /* xShadowName */
-  };
-  return tdsqlite3_create_module(db, "dbstat", &dbstat_module, 0);
-}
-#elif defined(SQLITE_ENABLE_DBSTAT_VTAB)
-SQLITE_PRIVATE int tdsqlite3DbstatRegister(tdsqlite3 *db){ return SQLITE_OK; }
-#endif /* SQLITE_ENABLE_DBSTAT_VTAB */
-
-/************** End of dbstat.c **********************************************/
-/************** Begin file dbpage.c ******************************************/
-/*
-** 2017-10-11
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains an implementation of the "sqlite_dbpage" virtual table.
-**
-** The sqlite_dbpage virtual table is used to read or write whole raw
-** pages of the database file.  The pager interface is used so that 
-** uncommitted changes and changes recorded in the WAL file are correctly
-** retrieved.
-**
-** Usage example:
-**
-**    SELECT data FROM sqlite_dbpage('aux1') WHERE pgno=123;
-**
-** This is an eponymous virtual table so it does not need to be created before
-** use.  The optional argument to the sqlite_dbpage() table name is the
-** schema for the database file that is to be read.  The default schema is
-** "main".
-**
-** The data field of sqlite_dbpage table can be updated.  The new
-** value must be a BLOB which is the correct page size, otherwise the
-** update fails.  Rows may not be deleted or inserted.
-*/
-
-/* #include "sqliteInt.h"   ** Requires access to internal data structures ** */
-#if (defined(SQLITE_ENABLE_DBPAGE_VTAB) || defined(SQLITE_TEST)) \
-    && !defined(SQLITE_OMIT_VIRTUALTABLE)
-
-typedef struct DbpageTable DbpageTable;
-typedef struct DbpageCursor DbpageCursor;
-
-struct DbpageCursor {
-  tdsqlite3_vtab_cursor base;       /* Base class.  Must be first */
-  int pgno;                       /* Current page number */
-  int mxPgno;                     /* Last page to visit on this scan */
-  Pager *pPager;                  /* Pager being read/written */
-  DbPage *pPage1;                 /* Page 1 of the database */
-  int iDb;                        /* Index of database to analyze */
-  int szPage;                     /* Size of each page in bytes */
-};
-
-struct DbpageTable {
-  tdsqlite3_vtab base;              /* Base class.  Must be first */
-  tdsqlite3 *db;                    /* The database */
-};
-
-/* Columns */
-#define DBPAGE_COLUMN_PGNO    0
-#define DBPAGE_COLUMN_DATA    1
-#define DBPAGE_COLUMN_SCHEMA  2
-
-
-
-/*
-** Connect to or create a dbpagevfs virtual table.
-*/
-static int dbpageConnect(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  DbpageTable *pTab = 0;
-  int rc = SQLITE_OK;
-
-  tdsqlite3_vtab_config(db, SQLITE_VTAB_DIRECTONLY);
-  rc = tdsqlite3_declare_vtab(db, 
-          "CREATE TABLE x(pgno INTEGER PRIMARY KEY, data BLOB, schema HIDDEN)");
-  if( rc==SQLITE_OK ){
-    pTab = (DbpageTable *)tdsqlite3_malloc64(sizeof(DbpageTable));
-    if( pTab==0 ) rc = SQLITE_NOMEM_BKPT;
-  }
-
-  assert( rc==SQLITE_OK || pTab==0 );
-  if( rc==SQLITE_OK ){
-    memset(pTab, 0, sizeof(DbpageTable));
-    pTab->db = db;
-  }
-
-  *ppVtab = (tdsqlite3_vtab*)pTab;
-  return rc;
-}
-
-/*
-** Disconnect from or destroy a dbpagevfs virtual table.
-*/
-static int dbpageDisconnect(tdsqlite3_vtab *pVtab){
-  tdsqlite3_free(pVtab);
-  return SQLITE_OK;
-}
-
-/*
-** idxNum:
-**
-**     0     schema=main, full table scan
-**     1     schema=main, pgno=?1
-**     2     schema=?1, full table scan
-**     3     schema=?1, pgno=?2
-*/
-static int dbpageBestIndex(tdsqlite3_vtab *tab, tdsqlite3_index_info *pIdxInfo){
-  int i;
-  int iPlan = 0;
-
-  /* If there is a schema= constraint, it must be honored.  Report a
-  ** ridiculously large estimated cost if the schema= constraint is
-  ** unavailable
-  */
-  for(i=0; i<pIdxInfo->nConstraint; i++){
-    struct tdsqlite3_index_constraint *p = &pIdxInfo->aConstraint[i];
-    if( p->iColumn!=DBPAGE_COLUMN_SCHEMA ) continue;
-    if( p->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
-    if( !p->usable ){
-      /* No solution. */
-      return SQLITE_CONSTRAINT;
-    }
-    iPlan = 2;
-    pIdxInfo->aConstraintUsage[i].argvIndex = 1;
-    pIdxInfo->aConstraintUsage[i].omit = 1;
-    break;
-  }
-
-  /* If we reach this point, it means that either there is no schema=
-  ** constraint (in which case we use the "main" schema) or else the
-  ** schema constraint was accepted.  Lower the estimated cost accordingly
-  */
-  pIdxInfo->estimatedCost = 1.0e6;
-
-  /* Check for constraints against pgno */
-  for(i=0; i<pIdxInfo->nConstraint; i++){
-    struct tdsqlite3_index_constraint *p = &pIdxInfo->aConstraint[i];
-    if( p->usable && p->iColumn<=0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ ){
-      pIdxInfo->estimatedRows = 1;
-      pIdxInfo->idxFlags = SQLITE_INDEX_SCAN_UNIQUE;
-      pIdxInfo->estimatedCost = 1.0;
-      pIdxInfo->aConstraintUsage[i].argvIndex = iPlan ? 2 : 1;
-      pIdxInfo->aConstraintUsage[i].omit = 1;
-      iPlan |= 1;
-      break;
-    }
-  }
-  pIdxInfo->idxNum = iPlan;
-
-  if( pIdxInfo->nOrderBy>=1
-   && pIdxInfo->aOrderBy[0].iColumn<=0
-   && pIdxInfo->aOrderBy[0].desc==0
-  ){
-    pIdxInfo->orderByConsumed = 1;
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Open a new dbpagevfs cursor.
-*/
-static int dbpageOpen(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCursor){
-  DbpageCursor *pCsr;
-
-  pCsr = (DbpageCursor *)tdsqlite3_malloc64(sizeof(DbpageCursor));
-  if( pCsr==0 ){
-    return SQLITE_NOMEM_BKPT;
-  }else{
-    memset(pCsr, 0, sizeof(DbpageCursor));
-    pCsr->base.pVtab = pVTab;
-    pCsr->pgno = -1;
-  }
-
-  *ppCursor = (tdsqlite3_vtab_cursor *)pCsr;
-  return SQLITE_OK;
-}
-
-/*
-** Close a dbpagevfs cursor.
-*/
-static int dbpageClose(tdsqlite3_vtab_cursor *pCursor){
-  DbpageCursor *pCsr = (DbpageCursor *)pCursor;
-  if( pCsr->pPage1 ) tdsqlite3PagerUnrefPageOne(pCsr->pPage1);
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-/*
-** Move a dbpagevfs cursor to the next entry in the file.
-*/
-static int dbpageNext(tdsqlite3_vtab_cursor *pCursor){
-  int rc = SQLITE_OK;
-  DbpageCursor *pCsr = (DbpageCursor *)pCursor;
-  pCsr->pgno++;
-  return rc;
-}
-
-static int dbpageEof(tdsqlite3_vtab_cursor *pCursor){
-  DbpageCursor *pCsr = (DbpageCursor *)pCursor;
-  return pCsr->pgno > pCsr->mxPgno;
-}
-
-/*
-** idxNum:
-**
-**     0     schema=main, full table scan
-**     1     schema=main, pgno=?1
-**     2     schema=?1, full table scan
-**     3     schema=?1, pgno=?2
-**
-** idxStr is not used
-*/
-static int dbpageFilter(
-  tdsqlite3_vtab_cursor *pCursor, 
-  int idxNum, const char *idxStr,
-  int argc, tdsqlite3_value **argv
-){
-  DbpageCursor *pCsr = (DbpageCursor *)pCursor;
-  DbpageTable *pTab = (DbpageTable *)pCursor->pVtab;
-  int rc;
-  tdsqlite3 *db = pTab->db;
-  Btree *pBt;
-
-  /* Default setting is no rows of result */
-  pCsr->pgno = 1; 
-  pCsr->mxPgno = 0;
-
-  if( idxNum & 2 ){
-    const char *zSchema;
-    assert( argc>=1 );
-    zSchema = (const char*)tdsqlite3_value_text(argv[0]);
-    pCsr->iDb = tdsqlite3FindDbName(db, zSchema);
-    if( pCsr->iDb<0 ) return SQLITE_OK;
-  }else{
-    pCsr->iDb = 0;
-  }
-  pBt = db->aDb[pCsr->iDb].pBt;
-  if( pBt==0 ) return SQLITE_OK;
-  pCsr->pPager = tdsqlite3BtreePager(pBt);
-  pCsr->szPage = tdsqlite3BtreeGetPageSize(pBt);
-  pCsr->mxPgno = tdsqlite3BtreeLastPage(pBt);
-  if( idxNum & 1 ){
-    assert( argc>(idxNum>>1) );
-    pCsr->pgno = tdsqlite3_value_int(argv[idxNum>>1]);
-    if( pCsr->pgno<1 || pCsr->pgno>pCsr->mxPgno ){
-      pCsr->pgno = 1;
-      pCsr->mxPgno = 0;
-    }else{
-      pCsr->mxPgno = pCsr->pgno;
-    }
-  }else{
-    assert( pCsr->pgno==1 );
-  }
-  if( pCsr->pPage1 ) tdsqlite3PagerUnrefPageOne(pCsr->pPage1);
-  rc = tdsqlite3PagerGet(pCsr->pPager, 1, &pCsr->pPage1, 0);
-  return rc;
-}
-
-static int dbpageColumn(
-  tdsqlite3_vtab_cursor *pCursor, 
-  tdsqlite3_context *ctx, 
-  int i
-){
-  DbpageCursor *pCsr = (DbpageCursor *)pCursor;
-  int rc = SQLITE_OK;
-  switch( i ){
-    case 0: {           /* pgno */
-      tdsqlite3_result_int(ctx, pCsr->pgno);
-      break;
-    }
-    case 1: {           /* data */
-      DbPage *pDbPage = 0;
-      rc = tdsqlite3PagerGet(pCsr->pPager, pCsr->pgno, (DbPage**)&pDbPage, 0);
-      if( rc==SQLITE_OK ){
-        tdsqlite3_result_blob(ctx, tdsqlite3PagerGetData(pDbPage), pCsr->szPage,
-                            SQLITE_TRANSIENT);
-      }
-      tdsqlite3PagerUnref(pDbPage);
-      break;
-    }
-    default: {          /* schema */
-      tdsqlite3 *db = tdsqlite3_context_db_handle(ctx);
-      tdsqlite3_result_text(ctx, db->aDb[pCsr->iDb].zDbSName, -1, SQLITE_STATIC);
-      break;
-    }
-  }
-  return SQLITE_OK;
-}
-
-static int dbpageRowid(tdsqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
-  DbpageCursor *pCsr = (DbpageCursor *)pCursor;
-  *pRowid = pCsr->pgno;
-  return SQLITE_OK;
-}
-
-static int dbpageUpdate(
-  tdsqlite3_vtab *pVtab,
-  int argc,
-  tdsqlite3_value **argv,
-  sqlite_int64 *pRowid
-){
-  DbpageTable *pTab = (DbpageTable *)pVtab;
-  Pgno pgno;
-  DbPage *pDbPage = 0;
-  int rc = SQLITE_OK;
-  char *zErr = 0;
-  const char *zSchema;
-  int iDb;
-  Btree *pBt;
-  Pager *pPager;
-  int szPage;
-
-  if( pTab->db->flags & SQLITE_Defensive ){
-    zErr = "read-only";
-    goto update_fail;
-  }
-  if( argc==1 ){
-    zErr = "cannot delete";
-    goto update_fail;
-  }
-  pgno = tdsqlite3_value_int(argv[0]);
-  if( (Pgno)tdsqlite3_value_int(argv[1])!=pgno ){
-    zErr = "cannot insert";
-    goto update_fail;
-  }
-  zSchema = (const char*)tdsqlite3_value_text(argv[4]);
-  iDb = zSchema ? tdsqlite3FindDbName(pTab->db, zSchema) : -1;
-  if( iDb<0 ){
-    zErr = "no such schema";
-    goto update_fail;
-  }
-  pBt = pTab->db->aDb[iDb].pBt;
-  if( pgno<1 || pBt==0 || pgno>(int)tdsqlite3BtreeLastPage(pBt) ){
-    zErr = "bad page number";
-    goto update_fail;
-  }
-  szPage = tdsqlite3BtreeGetPageSize(pBt);
-  if( tdsqlite3_value_type(argv[3])!=SQLITE_BLOB 
-   || tdsqlite3_value_bytes(argv[3])!=szPage
-  ){
-    zErr = "bad page value";
-    goto update_fail;
-  }
-  pPager = tdsqlite3BtreePager(pBt);
-  rc = tdsqlite3PagerGet(pPager, pgno, (DbPage**)&pDbPage, 0);
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3PagerWrite(pDbPage);
-    if( rc==SQLITE_OK ){
-      memcpy(tdsqlite3PagerGetData(pDbPage),
-             tdsqlite3_value_blob(argv[3]),
-             szPage);
-    }
-  }
-  tdsqlite3PagerUnref(pDbPage);
-  return rc;
-
-update_fail:
-  tdsqlite3_free(pVtab->zErrMsg);
-  pVtab->zErrMsg = tdsqlite3_mprintf("%s", zErr);
-  return SQLITE_ERROR;
-}
-
-/* Since we do not know in advance which database files will be
-** written by the sqlite_dbpage virtual table, start a write transaction
-** on them all.
-*/
-static int dbpageBegin(tdsqlite3_vtab *pVtab){
-  DbpageTable *pTab = (DbpageTable *)pVtab;
-  tdsqlite3 *db = pTab->db;
-  int i;
-  for(i=0; i<db->nDb; i++){
-    Btree *pBt = db->aDb[i].pBt;
-    if( pBt ) tdsqlite3BtreeBeginTrans(pBt, 1, 0);
-  }
-  return SQLITE_OK;
-}
-
-
-/*
-** Invoke this routine to register the "dbpage" virtual table module
-*/
-SQLITE_PRIVATE int tdsqlite3DbpageRegister(tdsqlite3 *db){
-  static tdsqlite3_module dbpage_module = {
-    0,                            /* iVersion */
-    dbpageConnect,                /* xCreate */
-    dbpageConnect,                /* xConnect */
-    dbpageBestIndex,              /* xBestIndex */
-    dbpageDisconnect,             /* xDisconnect */
-    dbpageDisconnect,             /* xDestroy */
-    dbpageOpen,                   /* xOpen - open a cursor */
-    dbpageClose,                  /* xClose - close a cursor */
-    dbpageFilter,                 /* xFilter - configure scan constraints */
-    dbpageNext,                   /* xNext - advance a cursor */
-    dbpageEof,                    /* xEof - check for end of scan */
-    dbpageColumn,                 /* xColumn - read data */
-    dbpageRowid,                  /* xRowid - read data */
-    dbpageUpdate,                 /* xUpdate */
-    dbpageBegin,                  /* xBegin */
-    0,                            /* xSync */
-    0,                            /* xCommit */
-    0,                            /* xRollback */
-    0,                            /* xFindMethod */
-    0,                            /* xRename */
-    0,                            /* xSavepoint */
-    0,                            /* xRelease */
-    0,                            /* xRollbackTo */
-    0                             /* xShadowName */
-  };
-  return tdsqlite3_create_module(db, "sqlite_dbpage", &dbpage_module, 0);
-}
-#elif defined(SQLITE_ENABLE_DBPAGE_VTAB)
-SQLITE_PRIVATE int tdsqlite3DbpageRegister(tdsqlite3 *db){ return SQLITE_OK; }
-#endif /* SQLITE_ENABLE_DBSTAT_VTAB */
-
-/************** End of dbpage.c **********************************************/
-/************** Begin file tdsqlite3session.c **********************************/
-
-#if defined(SQLITE_ENABLE_SESSION) && defined(SQLITE_ENABLE_PREUPDATE_HOOK)
-/* #include "tdsqlite3session.h" */
-/* #include <assert.h> */
-/* #include <string.h> */
-
-#ifndef SQLITE_AMALGAMATION
-/* # include "sqliteInt.h" */
-/* # include "vdbeInt.h" */
-#endif
-
-typedef struct SessionTable SessionTable;
-typedef struct SessionChange SessionChange;
-typedef struct SessionBuffer SessionBuffer;
-typedef struct SessionInput SessionInput;
-
-/*
-** Minimum chunk size used by streaming versions of functions.
-*/
-#ifndef SESSIONS_STRM_CHUNK_SIZE
-# ifdef SQLITE_TEST
-#   define SESSIONS_STRM_CHUNK_SIZE 64
-# else
-#   define SESSIONS_STRM_CHUNK_SIZE 1024
-# endif
-#endif
-
-static int sessions_strm_chunk_size = SESSIONS_STRM_CHUNK_SIZE;
-
-typedef struct SessionHook SessionHook;
-struct SessionHook {
-  void *pCtx;
-  int (*xOld)(void*,int,tdsqlite3_value**);
-  int (*xNew)(void*,int,tdsqlite3_value**);
-  int (*xCount)(void*);
-  int (*xDepth)(void*);
-};
-
-/*
-** Session handle structure.
-*/
-struct tdsqlite3_session {
-  tdsqlite3 *db;                    /* Database handle session is attached to */
-  char *zDb;                      /* Name of database session is attached to */
-  int bEnable;                    /* True if currently recording */
-  int bIndirect;                  /* True if all changes are indirect */
-  int bAutoAttach;                /* True to auto-attach tables */
-  int rc;                         /* Non-zero if an error has occurred */
-  void *pFilterCtx;               /* First argument to pass to xTableFilter */
-  int (*xTableFilter)(void *pCtx, const char *zTab);
-  tdsqlite3_value *pZeroBlob;       /* Value containing X'' */
-  tdsqlite3_session *pNext;         /* Next session object on same db. */
-  SessionTable *pTable;           /* List of attached tables */
-  SessionHook hook;               /* APIs to grab new and old data with */
-};
-
-/*
-** Instances of this structure are used to build strings or binary records.
-*/
-struct SessionBuffer {
-  u8 *aBuf;                       /* Pointer to changeset buffer */
-  int nBuf;                       /* Size of buffer aBuf */
-  int nAlloc;                     /* Size of allocation containing aBuf */
-};
-
-/*
-** An object of this type is used internally as an abstraction for 
-** input data. Input data may be supplied either as a single large buffer
-** (e.g. tdsqlite3changeset_start()) or using a stream function (e.g.
-**  tdsqlite3changeset_start_strm()).
-*/
-struct SessionInput {
-  int bNoDiscard;                 /* If true, do not discard in InputBuffer() */
-  int iCurrent;                   /* Offset in aData[] of current change */
-  int iNext;                      /* Offset in aData[] of next change */
-  u8 *aData;                      /* Pointer to buffer containing changeset */
-  int nData;                      /* Number of bytes in aData */
-
-  SessionBuffer buf;              /* Current read buffer */
-  int (*xInput)(void*, void*, int*);        /* Input stream call (or NULL) */
-  void *pIn;                                /* First argument to xInput */
-  int bEof;                       /* Set to true after xInput finished */
-};
-
-/*
-** Structure for changeset iterators.
-*/
-struct tdsqlite3_changeset_iter {
-  SessionInput in;                /* Input buffer or stream */
-  SessionBuffer tblhdr;           /* Buffer to hold apValue/zTab/abPK/ */
-  int bPatchset;                  /* True if this is a patchset */
-  int bInvert;                    /* True to invert changeset */
-  int rc;                         /* Iterator error code */
-  tdsqlite3_stmt *pConflict;        /* Points to conflicting row, if any */
-  char *zTab;                     /* Current table */
-  int nCol;                       /* Number of columns in zTab */
-  int op;                         /* Current operation */
-  int bIndirect;                  /* True if current change was indirect */
-  u8 *abPK;                       /* Primary key array */
-  tdsqlite3_value **apValue;        /* old.* and new.* values */
-};
-
-/*
-** Each session object maintains a set of the following structures, one
-** for each table the session object is monitoring. The structures are
-** stored in a linked list starting at tdsqlite3_session.pTable.
-**
-** The keys of the SessionTable.aChange[] hash table are all rows that have
-** been modified in any way since the session object was attached to the
-** table.
-**
-** The data associated with each hash-table entry is a structure containing
-** a subset of the initial values that the modified row contained at the
-** start of the session. Or no initial values if the row was inserted.
-*/
-struct SessionTable {
-  SessionTable *pNext;
-  char *zName;                    /* Local name of table */
-  int nCol;                       /* Number of columns in table zName */
-  int bStat1;                     /* True if this is sqlite_stat1 */
-  const char **azCol;             /* Column names */
-  u8 *abPK;                       /* Array of primary key flags */
-  int nEntry;                     /* Total number of entries in hash table */
-  int nChange;                    /* Size of apChange[] array */
-  SessionChange **apChange;       /* Hash table buckets */
-};
-
-/* 
-** RECORD FORMAT:
-**
-** The following record format is similar to (but not compatible with) that 
-** used in SQLite database files. This format is used as part of the 
-** change-set binary format, and so must be architecture independent.
-**
-** Unlike the SQLite database record format, each field is self-contained -
-** there is no separation of header and data. Each field begins with a
-** single byte describing its type, as follows:
-**
-**       0x00: Undefined value.
-**       0x01: Integer value.
-**       0x02: Real value.
-**       0x03: Text value.
-**       0x04: Blob value.
-**       0x05: SQL NULL value.
-**
-** Note that the above match the definitions of SQLITE_INTEGER, SQLITE_TEXT
-** and so on in sqlite3.h. For undefined and NULL values, the field consists
-** only of the single type byte. For other types of values, the type byte
-** is followed by:
-**
-**   Text values:
-**     A varint containing the number of bytes in the value (encoded using
-**     UTF-8). Followed by a buffer containing the UTF-8 representation
-**     of the text value. There is no nul terminator.
-**
-**   Blob values:
-**     A varint containing the number of bytes in the value, followed by
-**     a buffer containing the value itself.
-**
-**   Integer values:
-**     An 8-byte big-endian integer value.
-**
-**   Real values:
-**     An 8-byte big-endian IEEE 754-2008 real value.
-**
-** Varint values are encoded in the same way as varints in the SQLite 
-** record format.
-**
-** CHANGESET FORMAT:
-**
-** A changeset is a collection of DELETE, UPDATE and INSERT operations on
-** one or more tables. Operations on a single table are grouped together,
-** but may occur in any order (i.e. deletes, updates and inserts are all
-** mixed together).
-**
-** Each group of changes begins with a table header:
-**
-**   1 byte: Constant 0x54 (capital 'T')
-**   Varint: Number of columns in the table.
-**   nCol bytes: 0x01 for PK columns, 0x00 otherwise.
-**   N bytes: Unqualified table name (encoded using UTF-8). Nul-terminated.
-**
-** Followed by one or more changes to the table.
-**
-**   1 byte: Either SQLITE_INSERT (0x12), UPDATE (0x17) or DELETE (0x09).
-**   1 byte: The "indirect-change" flag.
-**   old.* record: (delete and update only)
-**   new.* record: (insert and update only)
-**
-** The "old.*" and "new.*" records, if present, are N field records in the
-** format described above under "RECORD FORMAT", where N is the number of
-** columns in the table. The i'th field of each record is associated with
-** the i'th column of the table, counting from left to right in the order
-** in which columns were declared in the CREATE TABLE statement.
-**
-** The new.* record that is part of each INSERT change contains the values
-** that make up the new row. Similarly, the old.* record that is part of each
-** DELETE change contains the values that made up the row that was deleted 
-** from the database. In the changeset format, the records that are part
-** of INSERT or DELETE changes never contain any undefined (type byte 0x00)
-** fields.
-**
-** Within the old.* record associated with an UPDATE change, all fields
-** associated with table columns that are not PRIMARY KEY columns and are
-** not modified by the UPDATE change are set to "undefined". Other fields
-** are set to the values that made up the row before the UPDATE that the
-** change records took place. Within the new.* record, fields associated 
-** with table columns modified by the UPDATE change contain the new 
-** values. Fields associated with table columns that are not modified
-** are set to "undefined".
-**
-** PATCHSET FORMAT:
-**
-** A patchset is also a collection of changes. It is similar to a changeset,
-** but leaves undefined those fields that are not useful if no conflict
-** resolution is required when applying the changeset.
-**
-** Each group of changes begins with a table header:
-**
-**   1 byte: Constant 0x50 (capital 'P')
-**   Varint: Number of columns in the table.
-**   nCol bytes: 0x01 for PK columns, 0x00 otherwise.
-**   N bytes: Unqualified table name (encoded using UTF-8). Nul-terminated.
-**
-** Followed by one or more changes to the table.
-**
-**   1 byte: Either SQLITE_INSERT (0x12), UPDATE (0x17) or DELETE (0x09).
-**   1 byte: The "indirect-change" flag.
-**   single record: (PK fields for DELETE, PK and modified fields for UPDATE,
-**                   full record for INSERT).
-**
-** As in the changeset format, each field of the single record that is part
-** of a patchset change is associated with the correspondingly positioned
-** table column, counting from left to right within the CREATE TABLE 
-** statement.
-**
-** For a DELETE change, all fields within the record except those associated
-** with PRIMARY KEY columns are omitted. The PRIMARY KEY fields contain the
-** values identifying the row to delete.
-**
-** For an UPDATE change, all fields except those associated with PRIMARY KEY
-** columns and columns that are modified by the UPDATE are set to "undefined".
-** PRIMARY KEY fields contain the values identifying the table row to update,
-** and fields associated with modified columns contain the new column values.
-**
-** The records associated with INSERT changes are in the same format as for
-** changesets. It is not possible for a record associated with an INSERT
-** change to contain a field set to "undefined".
-**
-** REBASE BLOB FORMAT:
-**
-** A rebase blob may be output by tdsqlite3changeset_apply_v2() and its 
-** streaming equivalent for use with the tdsqlite3_rebaser APIs to rebase
-** existing changesets. A rebase blob contains one entry for each conflict
-** resolved using either the OMIT or REPLACE strategies within the apply_v2()
-** call.
-**
-** The format used for a rebase blob is very similar to that used for
-** changesets. All entries related to a single table are grouped together.
-**
-** Each group of entries begins with a table header in changeset format:
-**
-**   1 byte: Constant 0x54 (capital 'T')
-**   Varint: Number of columns in the table.
-**   nCol bytes: 0x01 for PK columns, 0x00 otherwise.
-**   N bytes: Unqualified table name (encoded using UTF-8). Nul-terminated.
-**
-** Followed by one or more entries associated with the table.
-**
-**   1 byte: Either SQLITE_INSERT (0x12), DELETE (0x09).
-**   1 byte: Flag. 0x01 for REPLACE, 0x00 for OMIT.
-**   record: (in the record format defined above).
-**
-** In a rebase blob, the first field is set to SQLITE_INSERT if the change
-** that caused the conflict was an INSERT or UPDATE, or to SQLITE_DELETE if
-** it was a DELETE. The second field is set to 0x01 if the conflict 
-** resolution strategy was REPLACE, or 0x00 if it was OMIT.
-**
-** If the change that caused the conflict was a DELETE, then the single
-** record is a copy of the old.* record from the original changeset. If it
-** was an INSERT, then the single record is a copy of the new.* record. If
-** the conflicting change was an UPDATE, then the single record is a copy
-** of the new.* record with the PK fields filled in based on the original
-** old.* record.
-*/
-
-/*
-** For each row modified during a session, there exists a single instance of
-** this structure stored in a SessionTable.aChange[] hash table.
-*/
-struct SessionChange {
-  int op;                         /* One of UPDATE, DELETE, INSERT */
-  int bIndirect;                  /* True if this change is "indirect" */
-  int nRecord;                    /* Number of bytes in buffer aRecord[] */
-  u8 *aRecord;                    /* Buffer containing old.* record */
-  SessionChange *pNext;           /* For hash-table collisions */
-};
-
-/*
-** Write a varint with value iVal into the buffer at aBuf. Return the 
-** number of bytes written.
-*/
-static int sessionVarintPut(u8 *aBuf, int iVal){
-  return putVarint32(aBuf, iVal);
-}
-
-/*
-** Return the number of bytes required to store value iVal as a varint.
-*/
-static int sessionVarintLen(int iVal){
-  return tdsqlite3VarintLen(iVal);
-}
-
-/*
-** Read a varint value from aBuf[] into *piVal. Return the number of 
-** bytes read.
-*/
-static int sessionVarintGet(u8 *aBuf, int *piVal){
-  return getVarint32(aBuf, *piVal);
-}
-
-/* Load an unaligned and unsigned 32-bit integer */
-#define SESSION_UINT32(x) (((u32)(x)[0]<<24)|((x)[1]<<16)|((x)[2]<<8)|(x)[3])
-
-/*
-** Read a 64-bit big-endian integer value from buffer aRec[]. Return
-** the value read.
-*/
-static tdsqlite3_int64 sessionGetI64(u8 *aRec){
-  u64 x = SESSION_UINT32(aRec);
-  u32 y = SESSION_UINT32(aRec+4);
-  x = (x<<32) + y;
-  return (tdsqlite3_int64)x;
-}
-
-/*
-** Write a 64-bit big-endian integer value to the buffer aBuf[].
-*/
-static void sessionPutI64(u8 *aBuf, tdsqlite3_int64 i){
-  aBuf[0] = (i>>56) & 0xFF;
-  aBuf[1] = (i>>48) & 0xFF;
-  aBuf[2] = (i>>40) & 0xFF;
-  aBuf[3] = (i>>32) & 0xFF;
-  aBuf[4] = (i>>24) & 0xFF;
-  aBuf[5] = (i>>16) & 0xFF;
-  aBuf[6] = (i>> 8) & 0xFF;
-  aBuf[7] = (i>> 0) & 0xFF;
-}
-
-/*
-** This function is used to serialize the contents of value pValue (see
-** comment titled "RECORD FORMAT" above).
-**
-** If it is non-NULL, the serialized form of the value is written to 
-** buffer aBuf. *pnWrite is set to the number of bytes written before
-** returning. Or, if aBuf is NULL, the only thing this function does is
-** set *pnWrite.
-**
-** If no error occurs, SQLITE_OK is returned. Or, if an OOM error occurs
-** within a call to tdsqlite3_value_text() (may fail if the db is utf-16)) 
-** SQLITE_NOMEM is returned.
-*/
-static int sessionSerializeValue(
-  u8 *aBuf,                       /* If non-NULL, write serialized value here */
-  tdsqlite3_value *pValue,          /* Value to serialize */
-  tdsqlite3_int64 *pnWrite          /* IN/OUT: Increment by bytes written */
-){
-  int nByte;                      /* Size of serialized value in bytes */
-
-  if( pValue ){
-    int eType;                    /* Value type (SQLITE_NULL, TEXT etc.) */
-  
-    eType = tdsqlite3_value_type(pValue);
-    if( aBuf ) aBuf[0] = eType;
-  
-    switch( eType ){
-      case SQLITE_NULL: 
-        nByte = 1;
-        break;
-  
-      case SQLITE_INTEGER: 
-      case SQLITE_FLOAT:
-        if( aBuf ){
-          /* TODO: SQLite does something special to deal with mixed-endian
-          ** floating point values (e.g. ARM7). This code probably should
-          ** too.  */
-          u64 i;
-          if( eType==SQLITE_INTEGER ){
-            i = (u64)tdsqlite3_value_int64(pValue);
-          }else{
-            double r;
-            assert( sizeof(double)==8 && sizeof(u64)==8 );
-            r = tdsqlite3_value_double(pValue);
-            memcpy(&i, &r, 8);
-          }
-          sessionPutI64(&aBuf[1], i);
-        }
-        nByte = 9; 
-        break;
-  
-      default: {
-        u8 *z;
-        int n;
-        int nVarint;
-  
-        assert( eType==SQLITE_TEXT || eType==SQLITE_BLOB );
-        if( eType==SQLITE_TEXT ){
-          z = (u8 *)tdsqlite3_value_text(pValue);
-        }else{
-          z = (u8 *)tdsqlite3_value_blob(pValue);
-        }
-        n = tdsqlite3_value_bytes(pValue);
-        if( z==0 && (eType!=SQLITE_BLOB || n>0) ) return SQLITE_NOMEM;
-        nVarint = sessionVarintLen(n);
-  
-        if( aBuf ){
-          sessionVarintPut(&aBuf[1], n);
-          if( n ) memcpy(&aBuf[nVarint + 1], z, n);
-        }
-  
-        nByte = 1 + nVarint + n;
-        break;
-      }
-    }
-  }else{
-    nByte = 1;
-    if( aBuf ) aBuf[0] = '\0';
-  }
-
-  if( pnWrite ) *pnWrite += nByte;
-  return SQLITE_OK;
-}
-
-
-/*
-** This macro is used to calculate hash key values for data structures. In
-** order to use this macro, the entire data structure must be represented
-** as a series of unsigned integers. In order to calculate a hash-key value
-** for a data structure represented as three such integers, the macro may
-** then be used as follows:
-**
-**    int hash_key_value;
-**    hash_key_value = HASH_APPEND(0, <value 1>);
-**    hash_key_value = HASH_APPEND(hash_key_value, <value 2>);
-**    hash_key_value = HASH_APPEND(hash_key_value, <value 3>);
-**
-** In practice, the data structures this macro is used for are the primary
-** key values of modified rows.
-*/
-#define HASH_APPEND(hash, add) ((hash) << 3) ^ (hash) ^ (unsigned int)(add)
-
-/*
-** Append the hash of the 64-bit integer passed as the second argument to the
-** hash-key value passed as the first. Return the new hash-key value.
-*/
-static unsigned int sessionHashAppendI64(unsigned int h, i64 i){
-  h = HASH_APPEND(h, i & 0xFFFFFFFF);
-  return HASH_APPEND(h, (i>>32)&0xFFFFFFFF);
-}
-
-/*
-** Append the hash of the blob passed via the second and third arguments to 
-** the hash-key value passed as the first. Return the new hash-key value.
-*/
-static unsigned int sessionHashAppendBlob(unsigned int h, int n, const u8 *z){
-  int i;
-  for(i=0; i<n; i++) h = HASH_APPEND(h, z[i]);
-  return h;
-}
-
-/*
-** Append the hash of the data type passed as the second argument to the
-** hash-key value passed as the first. Return the new hash-key value.
-*/
-static unsigned int sessionHashAppendType(unsigned int h, int eType){
-  return HASH_APPEND(h, eType);
-}
-
-/*
-** This function may only be called from within a pre-update callback.
-** It calculates a hash based on the primary key values of the old.* or 
-** new.* row currently available and, assuming no error occurs, writes it to
-** *piHash before returning. If the primary key contains one or more NULL
-** values, *pbNullPK is set to true before returning.
-**
-** If an error occurs, an SQLite error code is returned and the final values
-** of *piHash asn *pbNullPK are undefined. Otherwise, SQLITE_OK is returned
-** and the output variables are set as described above.
-*/
-static int sessionPreupdateHash(
-  tdsqlite3_session *pSession,      /* Session object that owns pTab */
-  SessionTable *pTab,             /* Session table handle */
-  int bNew,                       /* True to hash the new.* PK */
-  int *piHash,                    /* OUT: Hash value */
-  int *pbNullPK                   /* OUT: True if there are NULL values in PK */
-){
-  unsigned int h = 0;             /* Hash value to return */
-  int i;                          /* Used to iterate through columns */
-
-  assert( *pbNullPK==0 );
-  assert( pTab->nCol==pSession->hook.xCount(pSession->hook.pCtx) );
-  for(i=0; i<pTab->nCol; i++){
-    if( pTab->abPK[i] ){
-      int rc;
-      int eType;
-      tdsqlite3_value *pVal;
-
-      if( bNew ){
-        rc = pSession->hook.xNew(pSession->hook.pCtx, i, &pVal);
-      }else{
-        rc = pSession->hook.xOld(pSession->hook.pCtx, i, &pVal);
-      }
-      if( rc!=SQLITE_OK ) return rc;
-
-      eType = tdsqlite3_value_type(pVal);
-      h = sessionHashAppendType(h, eType);
-      if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-        i64 iVal;
-        if( eType==SQLITE_INTEGER ){
-          iVal = tdsqlite3_value_int64(pVal);
-        }else{
-          double rVal = tdsqlite3_value_double(pVal);
-          assert( sizeof(iVal)==8 && sizeof(rVal)==8 );
-          memcpy(&iVal, &rVal, 8);
-        }
-        h = sessionHashAppendI64(h, iVal);
-      }else if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){
-        const u8 *z;
-        int n;
-        if( eType==SQLITE_TEXT ){
-          z = (const u8 *)tdsqlite3_value_text(pVal);
-        }else{
-          z = (const u8 *)tdsqlite3_value_blob(pVal);
-        }
-        n = tdsqlite3_value_bytes(pVal);
-        if( !z && (eType!=SQLITE_BLOB || n>0) ) return SQLITE_NOMEM;
-        h = sessionHashAppendBlob(h, n, z);
-      }else{
-        assert( eType==SQLITE_NULL );
-        assert( pTab->bStat1==0 || i!=1 );
-        *pbNullPK = 1;
-      }
-    }
-  }
-
-  *piHash = (h % pTab->nChange);
-  return SQLITE_OK;
-}
-
-/*
-** The buffer that the argument points to contains a serialized SQL value.
-** Return the number of bytes of space occupied by the value (including
-** the type byte).
-*/
-static int sessionSerialLen(u8 *a){
-  int e = *a;
-  int n;
-  if( e==0 || e==0xFF ) return 1;
-  if( e==SQLITE_NULL ) return 1;
-  if( e==SQLITE_INTEGER || e==SQLITE_FLOAT ) return 9;
-  return sessionVarintGet(&a[1], &n) + 1 + n;
-}
-
-/*
-** Based on the primary key values stored in change aRecord, calculate a
-** hash key. Assume the has table has nBucket buckets. The hash keys
-** calculated by this function are compatible with those calculated by
-** sessionPreupdateHash().
-**
-** The bPkOnly argument is non-zero if the record at aRecord[] is from
-** a patchset DELETE. In this case the non-PK fields are omitted entirely.
-*/
-static unsigned int sessionChangeHash(
-  SessionTable *pTab,             /* Table handle */
-  int bPkOnly,                    /* Record consists of PK fields only */
-  u8 *aRecord,                    /* Change record */
-  int nBucket                     /* Assume this many buckets in hash table */
-){
-  unsigned int h = 0;             /* Value to return */
-  int i;                          /* Used to iterate through columns */
-  u8 *a = aRecord;                /* Used to iterate through change record */
-
-  for(i=0; i<pTab->nCol; i++){
-    int eType = *a;
-    int isPK = pTab->abPK[i];
-    if( bPkOnly && isPK==0 ) continue;
-
-    /* It is not possible for eType to be SQLITE_NULL here. The session 
-    ** module does not record changes for rows with NULL values stored in
-    ** primary key columns. */
-    assert( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT 
-         || eType==SQLITE_TEXT || eType==SQLITE_BLOB 
-         || eType==SQLITE_NULL || eType==0 
-    );
-    assert( !isPK || (eType!=0 && eType!=SQLITE_NULL) );
-
-    if( isPK ){
-      a++;
-      h = sessionHashAppendType(h, eType);
-      if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-        h = sessionHashAppendI64(h, sessionGetI64(a));
-        a += 8;
-      }else{
-        int n; 
-        a += sessionVarintGet(a, &n);
-        h = sessionHashAppendBlob(h, n, a);
-        a += n;
-      }
-    }else{
-      a += sessionSerialLen(a);
-    }
-  }
-  return (h % nBucket);
-}
-
-/*
-** Arguments aLeft and aRight are pointers to change records for table pTab.
-** This function returns true if the two records apply to the same row (i.e.
-** have the same values stored in the primary key columns), or false 
-** otherwise.
-*/
-static int sessionChangeEqual(
-  SessionTable *pTab,             /* Table used for PK definition */
-  int bLeftPkOnly,                /* True if aLeft[] contains PK fields only */
-  u8 *aLeft,                      /* Change record */
-  int bRightPkOnly,               /* True if aRight[] contains PK fields only */
-  u8 *aRight                      /* Change record */
-){
-  u8 *a1 = aLeft;                 /* Cursor to iterate through aLeft */
-  u8 *a2 = aRight;                /* Cursor to iterate through aRight */
-  int iCol;                       /* Used to iterate through table columns */
-
-  for(iCol=0; iCol<pTab->nCol; iCol++){
-    if( pTab->abPK[iCol] ){
-      int n1 = sessionSerialLen(a1);
-      int n2 = sessionSerialLen(a2);
-
-      if( n1!=n2 || memcmp(a1, a2, n1) ){
-        return 0;
-      }
-      a1 += n1;
-      a2 += n2;
-    }else{
-      if( bLeftPkOnly==0 ) a1 += sessionSerialLen(a1);
-      if( bRightPkOnly==0 ) a2 += sessionSerialLen(a2);
-    }
-  }
-
-  return 1;
-}
-
-/*
-** Arguments aLeft and aRight both point to buffers containing change
-** records with nCol columns. This function "merges" the two records into
-** a single records which is written to the buffer at *paOut. *paOut is
-** then set to point to one byte after the last byte written before 
-** returning.
-**
-** The merging of records is done as follows: For each column, if the 
-** aRight record contains a value for the column, copy the value from
-** their. Otherwise, if aLeft contains a value, copy it. If neither
-** record contains a value for a given column, then neither does the
-** output record.
-*/
-static void sessionMergeRecord(
-  u8 **paOut, 
-  int nCol,
-  u8 *aLeft,
-  u8 *aRight
-){
-  u8 *a1 = aLeft;                 /* Cursor used to iterate through aLeft */
-  u8 *a2 = aRight;                /* Cursor used to iterate through aRight */
-  u8 *aOut = *paOut;              /* Output cursor */
-  int iCol;                       /* Used to iterate from 0 to nCol */
-
-  for(iCol=0; iCol<nCol; iCol++){
-    int n1 = sessionSerialLen(a1);
-    int n2 = sessionSerialLen(a2);
-    if( *a2 ){
-      memcpy(aOut, a2, n2);
-      aOut += n2;
-    }else{
-      memcpy(aOut, a1, n1);
-      aOut += n1;
-    }
-    a1 += n1;
-    a2 += n2;
-  }
-
-  *paOut = aOut;
-}
-
-/*
-** This is a helper function used by sessionMergeUpdate().
-**
-** When this function is called, both *paOne and *paTwo point to a value 
-** within a change record. Before it returns, both have been advanced so 
-** as to point to the next value in the record.
-**
-** If, when this function is called, *paTwo points to a valid value (i.e.
-** *paTwo[0] is not 0x00 - the "no value" placeholder), a copy of the *paTwo
-** pointer is returned and *pnVal is set to the number of bytes in the 
-** serialized value. Otherwise, a copy of *paOne is returned and *pnVal
-** set to the number of bytes in the value at *paOne. If *paOne points
-** to the "no value" placeholder, *pnVal is set to 1. In other words:
-**
-**   if( *paTwo is valid ) return *paTwo;
-**   return *paOne;
-**
-*/
-static u8 *sessionMergeValue(
-  u8 **paOne,                     /* IN/OUT: Left-hand buffer pointer */
-  u8 **paTwo,                     /* IN/OUT: Right-hand buffer pointer */
-  int *pnVal                      /* OUT: Bytes in returned value */
-){
-  u8 *a1 = *paOne;
-  u8 *a2 = *paTwo;
-  u8 *pRet = 0;
-  int n1;
-
-  assert( a1 );
-  if( a2 ){
-    int n2 = sessionSerialLen(a2);
-    if( *a2 ){
-      *pnVal = n2;
-      pRet = a2;
-    }
-    *paTwo = &a2[n2];
-  }
-
-  n1 = sessionSerialLen(a1);
-  if( pRet==0 ){
-    *pnVal = n1;
-    pRet = a1;
-  }
-  *paOne = &a1[n1];
-
-  return pRet;
-}
-
-/*
-** This function is used by changeset_concat() to merge two UPDATE changes
-** on the same row.
-*/
-static int sessionMergeUpdate(
-  u8 **paOut,                     /* IN/OUT: Pointer to output buffer */
-  SessionTable *pTab,             /* Table change pertains to */
-  int bPatchset,                  /* True if records are patchset records */
-  u8 *aOldRecord1,                /* old.* record for first change */
-  u8 *aOldRecord2,                /* old.* record for second change */
-  u8 *aNewRecord1,                /* new.* record for first change */
-  u8 *aNewRecord2                 /* new.* record for second change */
-){
-  u8 *aOld1 = aOldRecord1;
-  u8 *aOld2 = aOldRecord2;
-  u8 *aNew1 = aNewRecord1;
-  u8 *aNew2 = aNewRecord2;
-
-  u8 *aOut = *paOut;
-  int i;
-
-  if( bPatchset==0 ){
-    int bRequired = 0;
-
-    assert( aOldRecord1 && aNewRecord1 );
-
-    /* Write the old.* vector first. */
-    for(i=0; i<pTab->nCol; i++){
-      int nOld;
-      u8 *aOld;
-      int nNew;
-      u8 *aNew;
-
-      aOld = sessionMergeValue(&aOld1, &aOld2, &nOld);
-      aNew = sessionMergeValue(&aNew1, &aNew2, &nNew);
-      if( pTab->abPK[i] || nOld!=nNew || memcmp(aOld, aNew, nNew) ){
-        if( pTab->abPK[i]==0 ) bRequired = 1;
-        memcpy(aOut, aOld, nOld);
-        aOut += nOld;
-      }else{
-        *(aOut++) = '\0';
-      }
-    }
-
-    if( !bRequired ) return 0;
-  }
-
-  /* Write the new.* vector */
-  aOld1 = aOldRecord1;
-  aOld2 = aOldRecord2;
-  aNew1 = aNewRecord1;
-  aNew2 = aNewRecord2;
-  for(i=0; i<pTab->nCol; i++){
-    int nOld;
-    u8 *aOld;
-    int nNew;
-    u8 *aNew;
-
-    aOld = sessionMergeValue(&aOld1, &aOld2, &nOld);
-    aNew = sessionMergeValue(&aNew1, &aNew2, &nNew);
-    if( bPatchset==0 
-     && (pTab->abPK[i] || (nOld==nNew && 0==memcmp(aOld, aNew, nNew))) 
-    ){
-      *(aOut++) = '\0';
-    }else{
-      memcpy(aOut, aNew, nNew);
-      aOut += nNew;
-    }
-  }
-
-  *paOut = aOut;
-  return 1;
-}
-
-/*
-** This function is only called from within a pre-update-hook callback.
-** It determines if the current pre-update-hook change affects the same row
-** as the change stored in argument pChange. If so, it returns true. Otherwise
-** if the pre-update-hook does not affect the same row as pChange, it returns
-** false.
-*/
-static int sessionPreupdateEqual(
-  tdsqlite3_session *pSession,      /* Session object that owns SessionTable */
-  SessionTable *pTab,             /* Table associated with change */
-  SessionChange *pChange,         /* Change to compare to */
-  int op                          /* Current pre-update operation */
-){
-  int iCol;                       /* Used to iterate through columns */
-  u8 *a = pChange->aRecord;       /* Cursor used to scan change record */
-
-  assert( op==SQLITE_INSERT || op==SQLITE_UPDATE || op==SQLITE_DELETE );
-  for(iCol=0; iCol<pTab->nCol; iCol++){
-    if( !pTab->abPK[iCol] ){
-      a += sessionSerialLen(a);
-    }else{
-      tdsqlite3_value *pVal;        /* Value returned by preupdate_new/old */
-      int rc;                     /* Error code from preupdate_new/old */
-      int eType = *a++;           /* Type of value from change record */
-
-      /* The following calls to preupdate_new() and preupdate_old() can not
-      ** fail. This is because they cache their return values, and by the
-      ** time control flows to here they have already been called once from
-      ** within sessionPreupdateHash(). The first two asserts below verify
-      ** this (that the method has already been called). */
-      if( op==SQLITE_INSERT ){
-        /* assert( db->pPreUpdate->pNewUnpacked || db->pPreUpdate->aNew ); */
-        rc = pSession->hook.xNew(pSession->hook.pCtx, iCol, &pVal);
-      }else{
-        /* assert( db->pPreUpdate->pUnpacked ); */
-        rc = pSession->hook.xOld(pSession->hook.pCtx, iCol, &pVal);
-      }
-      assert( rc==SQLITE_OK );
-      if( tdsqlite3_value_type(pVal)!=eType ) return 0;
-
-      /* A SessionChange object never has a NULL value in a PK column */
-      assert( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT
-           || eType==SQLITE_BLOB    || eType==SQLITE_TEXT
-      );
-
-      if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-        i64 iVal = sessionGetI64(a);
-        a += 8;
-        if( eType==SQLITE_INTEGER ){
-          if( tdsqlite3_value_int64(pVal)!=iVal ) return 0;
-        }else{
-          double rVal;
-          assert( sizeof(iVal)==8 && sizeof(rVal)==8 );
-          memcpy(&rVal, &iVal, 8);
-          if( tdsqlite3_value_double(pVal)!=rVal ) return 0;
-        }
-      }else{
-        int n;
-        const u8 *z;
-        a += sessionVarintGet(a, &n);
-        if( tdsqlite3_value_bytes(pVal)!=n ) return 0;
-        if( eType==SQLITE_TEXT ){
-          z = tdsqlite3_value_text(pVal);
-        }else{
-          z = tdsqlite3_value_blob(pVal);
-        }
-        if( n>0 && memcmp(a, z, n) ) return 0;
-        a += n;
-      }
-    }
-  }
-
-  return 1;
-}
-
-/*
-** If required, grow the hash table used to store changes on table pTab 
-** (part of the session pSession). If a fatal OOM error occurs, set the
-** session object to failed and return SQLITE_ERROR. Otherwise, return
-** SQLITE_OK.
-**
-** It is possible that a non-fatal OOM error occurs in this function. In
-** that case the hash-table does not grow, but SQLITE_OK is returned anyway.
-** Growing the hash table in this case is a performance optimization only,
-** it is not required for correct operation.
-*/
-static int sessionGrowHash(int bPatchset, SessionTable *pTab){
-  if( pTab->nChange==0 || pTab->nEntry>=(pTab->nChange/2) ){
-    int i;
-    SessionChange **apNew;
-    tdsqlite3_int64 nNew = 2*(tdsqlite3_int64)(pTab->nChange ? pTab->nChange : 128);
-
-    apNew = (SessionChange **)tdsqlite3_malloc64(sizeof(SessionChange *) * nNew);
-    if( apNew==0 ){
-      if( pTab->nChange==0 ){
-        return SQLITE_ERROR;
-      }
-      return SQLITE_OK;
-    }
-    memset(apNew, 0, sizeof(SessionChange *) * nNew);
-
-    for(i=0; i<pTab->nChange; i++){
-      SessionChange *p;
-      SessionChange *pNext;
-      for(p=pTab->apChange[i]; p; p=pNext){
-        int bPkOnly = (p->op==SQLITE_DELETE && bPatchset);
-        int iHash = sessionChangeHash(pTab, bPkOnly, p->aRecord, nNew);
-        pNext = p->pNext;
-        p->pNext = apNew[iHash];
-        apNew[iHash] = p;
-      }
-    }
-
-    tdsqlite3_free(pTab->apChange);
-    pTab->nChange = nNew;
-    pTab->apChange = apNew;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** This function queries the database for the names of the columns of table
-** zThis, in schema zDb.
-**
-** Otherwise, if they are not NULL, variable *pnCol is set to the number
-** of columns in the database table and variable *pzTab is set to point to a
-** nul-terminated copy of the table name. *pazCol (if not NULL) is set to
-** point to an array of pointers to column names. And *pabPK (again, if not
-** NULL) is set to point to an array of booleans - true if the corresponding
-** column is part of the primary key.
-**
-** For example, if the table is declared as:
-**
-**     CREATE TABLE tbl1(w, x, y, z, PRIMARY KEY(w, z));
-**
-** Then the four output variables are populated as follows:
-**
-**     *pnCol  = 4
-**     *pzTab  = "tbl1"
-**     *pazCol = {"w", "x", "y", "z"}
-**     *pabPK  = {1, 0, 0, 1}
-**
-** All returned buffers are part of the same single allocation, which must
-** be freed using tdsqlite3_free() by the caller
-*/
-static int sessionTableInfo(
-  tdsqlite3 *db,                    /* Database connection */
-  const char *zDb,                /* Name of attached database (e.g. "main") */
-  const char *zThis,              /* Table name */
-  int *pnCol,                     /* OUT: number of columns */
-  const char **pzTab,             /* OUT: Copy of zThis */
-  const char ***pazCol,           /* OUT: Array of column names for table */
-  u8 **pabPK                      /* OUT: Array of booleans - true for PK col */
-){
-  char *zPragma;
-  tdsqlite3_stmt *pStmt;
-  int rc;
-  tdsqlite3_int64 nByte;
-  int nDbCol = 0;
-  int nThis;
-  int i;
-  u8 *pAlloc = 0;
-  char **azCol = 0;
-  u8 *abPK = 0;
-
-  assert( pazCol && pabPK );
-
-  nThis = tdsqlite3Strlen30(zThis);
-  if( nThis==12 && 0==tdsqlite3_stricmp("sqlite_stat1", zThis) ){
-    rc = tdsqlite3_table_column_metadata(db, zDb, zThis, 0, 0, 0, 0, 0, 0);
-    if( rc==SQLITE_OK ){
-      /* For sqlite_stat1, pretend that (tbl,idx) is the PRIMARY KEY. */
-      zPragma = tdsqlite3_mprintf(
-          "SELECT 0, 'tbl',  '', 0, '', 1     UNION ALL "
-          "SELECT 1, 'idx',  '', 0, '', 2     UNION ALL "
-          "SELECT 2, 'stat', '', 0, '', 0"
-      );
-    }else if( rc==SQLITE_ERROR ){
-      zPragma = tdsqlite3_mprintf("");
-    }else{
-      return rc;
-    }
-  }else{
-    zPragma = tdsqlite3_mprintf("PRAGMA '%q'.table_info('%q')", zDb, zThis);
-  }
-  if( !zPragma ) return SQLITE_NOMEM;
-
-  rc = tdsqlite3_prepare_v2(db, zPragma, -1, &pStmt, 0);
-  tdsqlite3_free(zPragma);
-  if( rc!=SQLITE_OK ) return rc;
-
-  nByte = nThis + 1;
-  while( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-    nByte += tdsqlite3_column_bytes(pStmt, 1);
-    nDbCol++;
-  }
-  rc = tdsqlite3_reset(pStmt);
-
-  if( rc==SQLITE_OK ){
-    nByte += nDbCol * (sizeof(const char *) + sizeof(u8) + 1);
-    pAlloc = tdsqlite3_malloc64(nByte);
-    if( pAlloc==0 ){
-      rc = SQLITE_NOMEM;
-    }
-  }
-  if( rc==SQLITE_OK ){
-    azCol = (char **)pAlloc;
-    pAlloc = (u8 *)&azCol[nDbCol];
-    abPK = (u8 *)pAlloc;
-    pAlloc = &abPK[nDbCol];
-    if( pzTab ){
-      memcpy(pAlloc, zThis, nThis+1);
-      *pzTab = (char *)pAlloc;
-      pAlloc += nThis+1;
-    }
-  
-    i = 0;
-    while( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-      int nName = tdsqlite3_column_bytes(pStmt, 1);
-      const unsigned char *zName = tdsqlite3_column_text(pStmt, 1);
-      if( zName==0 ) break;
-      memcpy(pAlloc, zName, nName+1);
-      azCol[i] = (char *)pAlloc;
-      pAlloc += nName+1;
-      abPK[i] = tdsqlite3_column_int(pStmt, 5);
-      i++;
-    }
-    rc = tdsqlite3_reset(pStmt);
-  
-  }
-
-  /* If successful, populate the output variables. Otherwise, zero them and
-  ** free any allocation made. An error code will be returned in this case.
-  */
-  if( rc==SQLITE_OK ){
-    *pazCol = (const char **)azCol;
-    *pabPK = abPK;
-    *pnCol = nDbCol;
-  }else{
-    *pazCol = 0;
-    *pabPK = 0;
-    *pnCol = 0;
-    if( pzTab ) *pzTab = 0;
-    tdsqlite3_free(azCol);
-  }
-  tdsqlite3_finalize(pStmt);
-  return rc;
-}
-
-/*
-** This function is only called from within a pre-update handler for a
-** write to table pTab, part of session pSession. If this is the first
-** write to this table, initalize the SessionTable.nCol, azCol[] and
-** abPK[] arrays accordingly.
-**
-** If an error occurs, an error code is stored in tdsqlite3_session.rc and
-** non-zero returned. Or, if no error occurs but the table has no primary
-** key, tdsqlite3_session.rc is left set to SQLITE_OK and non-zero returned to
-** indicate that updates on this table should be ignored. SessionTable.abPK 
-** is set to NULL in this case.
-*/
-static int sessionInitTable(tdsqlite3_session *pSession, SessionTable *pTab){
-  if( pTab->nCol==0 ){
-    u8 *abPK;
-    assert( pTab->azCol==0 || pTab->abPK==0 );
-    pSession->rc = sessionTableInfo(pSession->db, pSession->zDb, 
-        pTab->zName, &pTab->nCol, 0, &pTab->azCol, &abPK
-    );
-    if( pSession->rc==SQLITE_OK ){
-      int i;
-      for(i=0; i<pTab->nCol; i++){
-        if( abPK[i] ){
-          pTab->abPK = abPK;
-          break;
-        }
-      }
-      if( 0==tdsqlite3_stricmp("sqlite_stat1", pTab->zName) ){
-        pTab->bStat1 = 1;
-      }
-    }
-  }
-  return (pSession->rc || pTab->abPK==0);
-}
-
-/*
-** Versions of the four methods in object SessionHook for use with the
-** sqlite_stat1 table. The purpose of this is to substitute a zero-length
-** blob each time a NULL value is read from the "idx" column of the
-** sqlite_stat1 table.
-*/
-typedef struct SessionStat1Ctx SessionStat1Ctx;
-struct SessionStat1Ctx {
-  SessionHook hook;
-  tdsqlite3_session *pSession;
-};
-static int sessionStat1Old(void *pCtx, int iCol, tdsqlite3_value **ppVal){
-  SessionStat1Ctx *p = (SessionStat1Ctx*)pCtx;
-  tdsqlite3_value *pVal = 0;
-  int rc = p->hook.xOld(p->hook.pCtx, iCol, &pVal);
-  if( rc==SQLITE_OK && iCol==1 && tdsqlite3_value_type(pVal)==SQLITE_NULL ){
-    pVal = p->pSession->pZeroBlob;
-  }
-  *ppVal = pVal;
-  return rc;
-}
-static int sessionStat1New(void *pCtx, int iCol, tdsqlite3_value **ppVal){
-  SessionStat1Ctx *p = (SessionStat1Ctx*)pCtx;
-  tdsqlite3_value *pVal = 0;
-  int rc = p->hook.xNew(p->hook.pCtx, iCol, &pVal);
-  if( rc==SQLITE_OK && iCol==1 && tdsqlite3_value_type(pVal)==SQLITE_NULL ){
-    pVal = p->pSession->pZeroBlob;
-  }
-  *ppVal = pVal;
-  return rc;
-}
-static int sessionStat1Count(void *pCtx){
-  SessionStat1Ctx *p = (SessionStat1Ctx*)pCtx;
-  return p->hook.xCount(p->hook.pCtx);
-}
-static int sessionStat1Depth(void *pCtx){
-  SessionStat1Ctx *p = (SessionStat1Ctx*)pCtx;
-  return p->hook.xDepth(p->hook.pCtx);
-}
-
-
-/*
-** This function is only called from with a pre-update-hook reporting a 
-** change on table pTab (attached to session pSession). The type of change
-** (UPDATE, INSERT, DELETE) is specified by the first argument.
-**
-** Unless one is already present or an error occurs, an entry is added
-** to the changed-rows hash table associated with table pTab.
-*/
-static void sessionPreupdateOneChange(
-  int op,                         /* One of SQLITE_UPDATE, INSERT, DELETE */
-  tdsqlite3_session *pSession,      /* Session object pTab is attached to */
-  SessionTable *pTab              /* Table that change applies to */
-){
-  int iHash; 
-  int bNull = 0; 
-  int rc = SQLITE_OK;
-  SessionStat1Ctx stat1 = {{0,0,0,0,0},0};
-
-  if( pSession->rc ) return;
-
-  /* Load table details if required */
-  if( sessionInitTable(pSession, pTab) ) return;
-
-  /* Check the number of columns in this xPreUpdate call matches the 
-  ** number of columns in the table.  */
-  if( pTab->nCol!=pSession->hook.xCount(pSession->hook.pCtx) ){
-    pSession->rc = SQLITE_SCHEMA;
-    return;
-  }
-
-  /* Grow the hash table if required */
-  if( sessionGrowHash(0, pTab) ){
-    pSession->rc = SQLITE_NOMEM;
-    return;
-  }
-
-  if( pTab->bStat1 ){
-    stat1.hook = pSession->hook;
-    stat1.pSession = pSession;
-    pSession->hook.pCtx = (void*)&stat1;
-    pSession->hook.xNew = sessionStat1New;
-    pSession->hook.xOld = sessionStat1Old;
-    pSession->hook.xCount = sessionStat1Count;
-    pSession->hook.xDepth = sessionStat1Depth;
-    if( pSession->pZeroBlob==0 ){
-      tdsqlite3_value *p = tdsqlite3ValueNew(0);
-      if( p==0 ){
-        rc = SQLITE_NOMEM;
-        goto error_out;
-      }
-      tdsqlite3ValueSetStr(p, 0, "", 0, SQLITE_STATIC);
-      pSession->pZeroBlob = p;
-    }
-  }
-
-  /* Calculate the hash-key for this change. If the primary key of the row
-  ** includes a NULL value, exit early. Such changes are ignored by the
-  ** session module. */
-  rc = sessionPreupdateHash(pSession, pTab, op==SQLITE_INSERT, &iHash, &bNull);
-  if( rc!=SQLITE_OK ) goto error_out;
-
-  if( bNull==0 ){
-    /* Search the hash table for an existing record for this row. */
-    SessionChange *pC;
-    for(pC=pTab->apChange[iHash]; pC; pC=pC->pNext){
-      if( sessionPreupdateEqual(pSession, pTab, pC, op) ) break;
-    }
-
-    if( pC==0 ){
-      /* Create a new change object containing all the old values (if
-      ** this is an SQLITE_UPDATE or SQLITE_DELETE), or just the PK
-      ** values (if this is an INSERT). */
-      SessionChange *pChange; /* New change object */
-      tdsqlite3_int64 nByte;    /* Number of bytes to allocate */
-      int i;                  /* Used to iterate through columns */
-  
-      assert( rc==SQLITE_OK );
-      pTab->nEntry++;
-  
-      /* Figure out how large an allocation is required */
-      nByte = sizeof(SessionChange);
-      for(i=0; i<pTab->nCol; i++){
-        tdsqlite3_value *p = 0;
-        if( op!=SQLITE_INSERT ){
-          TESTONLY(int trc = ) pSession->hook.xOld(pSession->hook.pCtx, i, &p);
-          assert( trc==SQLITE_OK );
-        }else if( pTab->abPK[i] ){
-          TESTONLY(int trc = ) pSession->hook.xNew(pSession->hook.pCtx, i, &p);
-          assert( trc==SQLITE_OK );
-        }
-
-        /* This may fail if SQLite value p contains a utf-16 string that must
-        ** be converted to utf-8 and an OOM error occurs while doing so. */
-        rc = sessionSerializeValue(0, p, &nByte);
-        if( rc!=SQLITE_OK ) goto error_out;
-      }
-  
-      /* Allocate the change object */
-      pChange = (SessionChange *)tdsqlite3_malloc64(nByte);
-      if( !pChange ){
-        rc = SQLITE_NOMEM;
-        goto error_out;
-      }else{
-        memset(pChange, 0, sizeof(SessionChange));
-        pChange->aRecord = (u8 *)&pChange[1];
-      }
-  
-      /* Populate the change object. None of the preupdate_old(),
-      ** preupdate_new() or SerializeValue() calls below may fail as all
-      ** required values and encodings have already been cached in memory.
-      ** It is not possible for an OOM to occur in this block. */
-      nByte = 0;
-      for(i=0; i<pTab->nCol; i++){
-        tdsqlite3_value *p = 0;
-        if( op!=SQLITE_INSERT ){
-          pSession->hook.xOld(pSession->hook.pCtx, i, &p);
-        }else if( pTab->abPK[i] ){
-          pSession->hook.xNew(pSession->hook.pCtx, i, &p);
-        }
-        sessionSerializeValue(&pChange->aRecord[nByte], p, &nByte);
-      }
-
-      /* Add the change to the hash-table */
-      if( pSession->bIndirect || pSession->hook.xDepth(pSession->hook.pCtx) ){
-        pChange->bIndirect = 1;
-      }
-      pChange->nRecord = nByte;
-      pChange->op = op;
-      pChange->pNext = pTab->apChange[iHash];
-      pTab->apChange[iHash] = pChange;
-
-    }else if( pC->bIndirect ){
-      /* If the existing change is considered "indirect", but this current
-      ** change is "direct", mark the change object as direct. */
-      if( pSession->hook.xDepth(pSession->hook.pCtx)==0 
-       && pSession->bIndirect==0 
-      ){
-        pC->bIndirect = 0;
-      }
-    }
-  }
-
-  /* If an error has occurred, mark the session object as failed. */
- error_out:
-  if( pTab->bStat1 ){
-    pSession->hook = stat1.hook;
-  }
-  if( rc!=SQLITE_OK ){
-    pSession->rc = rc;
-  }
-}
-
-static int sessionFindTable(
-  tdsqlite3_session *pSession, 
-  const char *zName,
-  SessionTable **ppTab
-){
-  int rc = SQLITE_OK;
-  int nName = tdsqlite3Strlen30(zName);
-  SessionTable *pRet;
-
-  /* Search for an existing table */
-  for(pRet=pSession->pTable; pRet; pRet=pRet->pNext){
-    if( 0==tdsqlite3_strnicmp(pRet->zName, zName, nName+1) ) break;
-  }
-
-  if( pRet==0 && pSession->bAutoAttach ){
-    /* If there is a table-filter configured, invoke it. If it returns 0,
-    ** do not automatically add the new table. */
-    if( pSession->xTableFilter==0
-     || pSession->xTableFilter(pSession->pFilterCtx, zName) 
-    ){
-      rc = tdsqlite3session_attach(pSession, zName);
-      if( rc==SQLITE_OK ){
-        for(pRet=pSession->pTable; pRet->pNext; pRet=pRet->pNext);
-        assert( 0==tdsqlite3_strnicmp(pRet->zName, zName, nName+1) );
-      }
-    }
-  }
-
-  assert( rc==SQLITE_OK || pRet==0 );
-  *ppTab = pRet;
-  return rc;
-}
-
-/*
-** The 'pre-update' hook registered by this module with SQLite databases.
-*/
-static void xPreUpdate(
-  void *pCtx,                     /* Copy of third arg to preupdate_hook() */
-  tdsqlite3 *db,                    /* Database handle */
-  int op,                         /* SQLITE_UPDATE, DELETE or INSERT */
-  char const *zDb,                /* Database name */
-  char const *zName,              /* Table name */
-  tdsqlite3_int64 iKey1,            /* Rowid of row about to be deleted/updated */
-  tdsqlite3_int64 iKey2             /* New rowid value (for a rowid UPDATE) */
-){
-  tdsqlite3_session *pSession;
-  int nDb = tdsqlite3Strlen30(zDb);
-
-  assert( tdsqlite3_mutex_held(db->mutex) );
-
-  for(pSession=(tdsqlite3_session *)pCtx; pSession; pSession=pSession->pNext){
-    SessionTable *pTab;
-
-    /* If this session is attached to a different database ("main", "temp" 
-    ** etc.), or if it is not currently enabled, there is nothing to do. Skip 
-    ** to the next session object attached to this database. */
-    if( pSession->bEnable==0 ) continue;
-    if( pSession->rc ) continue;
-    if( tdsqlite3_strnicmp(zDb, pSession->zDb, nDb+1) ) continue;
-
-    pSession->rc = sessionFindTable(pSession, zName, &pTab);
-    if( pTab ){
-      assert( pSession->rc==SQLITE_OK );
-      sessionPreupdateOneChange(op, pSession, pTab);
-      if( op==SQLITE_UPDATE ){
-        sessionPreupdateOneChange(SQLITE_INSERT, pSession, pTab);
-      }
-    }
-  }
-}
-
-/*
-** The pre-update hook implementations.
-*/
-static int sessionPreupdateOld(void *pCtx, int iVal, tdsqlite3_value **ppVal){
-  return tdsqlite3_preupdate_old((tdsqlite3*)pCtx, iVal, ppVal);
-}
-static int sessionPreupdateNew(void *pCtx, int iVal, tdsqlite3_value **ppVal){
-  return tdsqlite3_preupdate_new((tdsqlite3*)pCtx, iVal, ppVal);
-}
-static int sessionPreupdateCount(void *pCtx){
-  return tdsqlite3_preupdate_count((tdsqlite3*)pCtx);
-}
-static int sessionPreupdateDepth(void *pCtx){
-  return tdsqlite3_preupdate_depth((tdsqlite3*)pCtx);
-}
-
-/*
-** Install the pre-update hooks on the session object passed as the only
-** argument.
-*/
-static void sessionPreupdateHooks(
-  tdsqlite3_session *pSession
-){
-  pSession->hook.pCtx = (void*)pSession->db;
-  pSession->hook.xOld = sessionPreupdateOld;
-  pSession->hook.xNew = sessionPreupdateNew;
-  pSession->hook.xCount = sessionPreupdateCount;
-  pSession->hook.xDepth = sessionPreupdateDepth;
-}
-
-typedef struct SessionDiffCtx SessionDiffCtx;
-struct SessionDiffCtx {
-  tdsqlite3_stmt *pStmt;
-  int nOldOff;
-};
-
-/*
-** The diff hook implementations.
-*/
-static int sessionDiffOld(void *pCtx, int iVal, tdsqlite3_value **ppVal){
-  SessionDiffCtx *p = (SessionDiffCtx*)pCtx;
-  *ppVal = tdsqlite3_column_value(p->pStmt, iVal+p->nOldOff);
-  return SQLITE_OK;
-}
-static int sessionDiffNew(void *pCtx, int iVal, tdsqlite3_value **ppVal){
-  SessionDiffCtx *p = (SessionDiffCtx*)pCtx;
-  *ppVal = tdsqlite3_column_value(p->pStmt, iVal);
-   return SQLITE_OK;
-}
-static int sessionDiffCount(void *pCtx){
-  SessionDiffCtx *p = (SessionDiffCtx*)pCtx;
-  return p->nOldOff ? p->nOldOff : tdsqlite3_column_count(p->pStmt);
-}
-static int sessionDiffDepth(void *pCtx){
-  return 0;
-}
-
-/*
-** Install the diff hooks on the session object passed as the only
-** argument.
-*/
-static void sessionDiffHooks(
-  tdsqlite3_session *pSession,
-  SessionDiffCtx *pDiffCtx
-){
-  pSession->hook.pCtx = (void*)pDiffCtx;
-  pSession->hook.xOld = sessionDiffOld;
-  pSession->hook.xNew = sessionDiffNew;
-  pSession->hook.xCount = sessionDiffCount;
-  pSession->hook.xDepth = sessionDiffDepth;
-}
-
-static char *sessionExprComparePK(
-  int nCol,
-  const char *zDb1, const char *zDb2, 
-  const char *zTab,
-  const char **azCol, u8 *abPK
-){
-  int i;
-  const char *zSep = "";
-  char *zRet = 0;
-
-  for(i=0; i<nCol; i++){
-    if( abPK[i] ){
-      zRet = tdsqlite3_mprintf("%z%s\"%w\".\"%w\".\"%w\"=\"%w\".\"%w\".\"%w\"",
-          zRet, zSep, zDb1, zTab, azCol[i], zDb2, zTab, azCol[i]
-      );
-      zSep = " AND ";
-      if( zRet==0 ) break;
-    }
-  }
-
-  return zRet;
-}
-
-static char *sessionExprCompareOther(
-  int nCol,
-  const char *zDb1, const char *zDb2, 
-  const char *zTab,
-  const char **azCol, u8 *abPK
-){
-  int i;
-  const char *zSep = "";
-  char *zRet = 0;
-  int bHave = 0;
-
-  for(i=0; i<nCol; i++){
-    if( abPK[i]==0 ){
-      bHave = 1;
-      zRet = tdsqlite3_mprintf(
-          "%z%s\"%w\".\"%w\".\"%w\" IS NOT \"%w\".\"%w\".\"%w\"",
-          zRet, zSep, zDb1, zTab, azCol[i], zDb2, zTab, azCol[i]
-      );
-      zSep = " OR ";
-      if( zRet==0 ) break;
-    }
-  }
-
-  if( bHave==0 ){
-    assert( zRet==0 );
-    zRet = tdsqlite3_mprintf("0");
-  }
-
-  return zRet;
-}
-
-static char *sessionSelectFindNew(
-  int nCol,
-  const char *zDb1,      /* Pick rows in this db only */
-  const char *zDb2,      /* But not in this one */
-  const char *zTbl,      /* Table name */
-  const char *zExpr
-){
-  char *zRet = tdsqlite3_mprintf(
-      "SELECT * FROM \"%w\".\"%w\" WHERE NOT EXISTS ("
-      "  SELECT 1 FROM \"%w\".\"%w\" WHERE %s"
-      ")",
-      zDb1, zTbl, zDb2, zTbl, zExpr
-  );
-  return zRet;
-}
-
-static int sessionDiffFindNew(
-  int op,
-  tdsqlite3_session *pSession,
-  SessionTable *pTab,
-  const char *zDb1,
-  const char *zDb2,
-  char *zExpr
-){
-  int rc = SQLITE_OK;
-  char *zStmt = sessionSelectFindNew(pTab->nCol, zDb1, zDb2, pTab->zName,zExpr);
-
-  if( zStmt==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    tdsqlite3_stmt *pStmt;
-    rc = tdsqlite3_prepare(pSession->db, zStmt, -1, &pStmt, 0);
-    if( rc==SQLITE_OK ){
-      SessionDiffCtx *pDiffCtx = (SessionDiffCtx*)pSession->hook.pCtx;
-      pDiffCtx->pStmt = pStmt;
-      pDiffCtx->nOldOff = 0;
-      while( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-        sessionPreupdateOneChange(op, pSession, pTab);
-      }
-      rc = tdsqlite3_finalize(pStmt);
-    }
-    tdsqlite3_free(zStmt);
-  }
-
-  return rc;
-}
-
-static int sessionDiffFindModified(
-  tdsqlite3_session *pSession, 
-  SessionTable *pTab, 
-  const char *zFrom, 
-  const char *zExpr
-){
-  int rc = SQLITE_OK;
-
-  char *zExpr2 = sessionExprCompareOther(pTab->nCol,
-      pSession->zDb, zFrom, pTab->zName, pTab->azCol, pTab->abPK
-  );
-  if( zExpr2==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    char *zStmt = tdsqlite3_mprintf(
-        "SELECT * FROM \"%w\".\"%w\", \"%w\".\"%w\" WHERE %s AND (%z)",
-        pSession->zDb, pTab->zName, zFrom, pTab->zName, zExpr, zExpr2
-    );
-    if( zStmt==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      tdsqlite3_stmt *pStmt;
-      rc = tdsqlite3_prepare(pSession->db, zStmt, -1, &pStmt, 0);
-
-      if( rc==SQLITE_OK ){
-        SessionDiffCtx *pDiffCtx = (SessionDiffCtx*)pSession->hook.pCtx;
-        pDiffCtx->pStmt = pStmt;
-        pDiffCtx->nOldOff = pTab->nCol;
-        while( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-          sessionPreupdateOneChange(SQLITE_UPDATE, pSession, pTab);
-        }
-        rc = tdsqlite3_finalize(pStmt);
-      }
-      tdsqlite3_free(zStmt);
-    }
-  }
-
-  return rc;
-}
-
-SQLITE_API int tdsqlite3session_diff(
-  tdsqlite3_session *pSession,
-  const char *zFrom,
-  const char *zTbl,
-  char **pzErrMsg
-){
-  const char *zDb = pSession->zDb;
-  int rc = pSession->rc;
-  SessionDiffCtx d;
-
-  memset(&d, 0, sizeof(d));
-  sessionDiffHooks(pSession, &d);
-
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(pSession->db));
-  if( pzErrMsg ) *pzErrMsg = 0;
-  if( rc==SQLITE_OK ){
-    char *zExpr = 0;
-    tdsqlite3 *db = pSession->db;
-    SessionTable *pTo;            /* Table zTbl */
-
-    /* Locate and if necessary initialize the target table object */
-    rc = sessionFindTable(pSession, zTbl, &pTo);
-    if( pTo==0 ) goto diff_out;
-    if( sessionInitTable(pSession, pTo) ){
-      rc = pSession->rc;
-      goto diff_out;
-    }
-
-    /* Check the table schemas match */
-    if( rc==SQLITE_OK ){
-      int bHasPk = 0;
-      int bMismatch = 0;
-      int nCol;                   /* Columns in zFrom.zTbl */
-      u8 *abPK;
-      const char **azCol = 0;
-      rc = sessionTableInfo(db, zFrom, zTbl, &nCol, 0, &azCol, &abPK);
-      if( rc==SQLITE_OK ){
-        if( pTo->nCol!=nCol ){
-          bMismatch = 1;
-        }else{
-          int i;
-          for(i=0; i<nCol; i++){
-            if( pTo->abPK[i]!=abPK[i] ) bMismatch = 1;
-            if( tdsqlite3_stricmp(azCol[i], pTo->azCol[i]) ) bMismatch = 1;
-            if( abPK[i] ) bHasPk = 1;
-          }
-        }
-      }
-      tdsqlite3_free((char*)azCol);
-      if( bMismatch ){
-        if( pzErrMsg ){
-          *pzErrMsg = tdsqlite3_mprintf("table schemas do not match");
-        }
-        rc = SQLITE_SCHEMA;
-      }
-      if( bHasPk==0 ){
-        /* Ignore tables with no primary keys */
-        goto diff_out;
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      zExpr = sessionExprComparePK(pTo->nCol, 
-          zDb, zFrom, pTo->zName, pTo->azCol, pTo->abPK
-      );
-    }
-
-    /* Find new rows */
-    if( rc==SQLITE_OK ){
-      rc = sessionDiffFindNew(SQLITE_INSERT, pSession, pTo, zDb, zFrom, zExpr);
-    }
-
-    /* Find old rows */
-    if( rc==SQLITE_OK ){
-      rc = sessionDiffFindNew(SQLITE_DELETE, pSession, pTo, zFrom, zDb, zExpr);
-    }
-
-    /* Find modified rows */
-    if( rc==SQLITE_OK ){
-      rc = sessionDiffFindModified(pSession, pTo, zFrom, zExpr);
-    }
-
-    tdsqlite3_free(zExpr);
-  }
-
- diff_out:
-  sessionPreupdateHooks(pSession);
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(pSession->db));
-  return rc;
-}
-
-/*
-** Create a session object. This session object will record changes to
-** database zDb attached to connection db.
-*/
-SQLITE_API int tdsqlite3session_create(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Name of db (e.g. "main") */
-  tdsqlite3_session **ppSession     /* OUT: New session object */
-){
-  tdsqlite3_session *pNew;          /* Newly allocated session object */
-  tdsqlite3_session *pOld;          /* Session object already attached to db */
-  int nDb = tdsqlite3Strlen30(zDb); /* Length of zDb in bytes */
-
-  /* Zero the output value in case an error occurs. */
-  *ppSession = 0;
-
-  /* Allocate and populate the new session object. */
-  pNew = (tdsqlite3_session *)tdsqlite3_malloc64(sizeof(tdsqlite3_session) + nDb + 1);
-  if( !pNew ) return SQLITE_NOMEM;
-  memset(pNew, 0, sizeof(tdsqlite3_session));
-  pNew->db = db;
-  pNew->zDb = (char *)&pNew[1];
-  pNew->bEnable = 1;
-  memcpy(pNew->zDb, zDb, nDb+1);
-  sessionPreupdateHooks(pNew);
-
-  /* Add the new session object to the linked list of session objects 
-  ** attached to database handle $db. Do this under the cover of the db
-  ** handle mutex.  */
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(db));
-  pOld = (tdsqlite3_session*)tdsqlite3_preupdate_hook(db, xPreUpdate, (void*)pNew);
-  pNew->pNext = pOld;
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(db));
-
-  *ppSession = pNew;
-  return SQLITE_OK;
-}
-
-/*
-** Free the list of table objects passed as the first argument. The contents
-** of the changed-rows hash tables are also deleted.
-*/
-static void sessionDeleteTable(SessionTable *pList){
-  SessionTable *pNext;
-  SessionTable *pTab;
-
-  for(pTab=pList; pTab; pTab=pNext){
-    int i;
-    pNext = pTab->pNext;
-    for(i=0; i<pTab->nChange; i++){
-      SessionChange *p;
-      SessionChange *pNextChange;
-      for(p=pTab->apChange[i]; p; p=pNextChange){
-        pNextChange = p->pNext;
-        tdsqlite3_free(p);
-      }
-    }
-    tdsqlite3_free((char*)pTab->azCol);  /* cast works around VC++ bug */
-    tdsqlite3_free(pTab->apChange);
-    tdsqlite3_free(pTab);
-  }
-}
-
-/*
-** Delete a session object previously allocated using tdsqlite3session_create().
-*/
-SQLITE_API void tdsqlite3session_delete(tdsqlite3_session *pSession){
-  tdsqlite3 *db = pSession->db;
-  tdsqlite3_session *pHead;
-  tdsqlite3_session **pp;
-
-  /* Unlink the session from the linked list of sessions attached to the
-  ** database handle. Hold the db mutex while doing so.  */
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(db));
-  pHead = (tdsqlite3_session*)tdsqlite3_preupdate_hook(db, 0, 0);
-  for(pp=&pHead; ALWAYS((*pp)!=0); pp=&((*pp)->pNext)){
-    if( (*pp)==pSession ){
-      *pp = (*pp)->pNext;
-      if( pHead ) tdsqlite3_preupdate_hook(db, xPreUpdate, (void*)pHead);
-      break;
-    }
-  }
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(db));
-  tdsqlite3ValueFree(pSession->pZeroBlob);
-
-  /* Delete all attached table objects. And the contents of their 
-  ** associated hash-tables. */
-  sessionDeleteTable(pSession->pTable);
-
-  /* Free the session object itself. */
-  tdsqlite3_free(pSession);
-}
-
-/*
-** Set a table filter on a Session Object.
-*/
-SQLITE_API void tdsqlite3session_table_filter(
-  tdsqlite3_session *pSession, 
-  int(*xFilter)(void*, const char*),
-  void *pCtx                      /* First argument passed to xFilter */
-){
-  pSession->bAutoAttach = 1;
-  pSession->pFilterCtx = pCtx;
-  pSession->xTableFilter = xFilter;
-}
-
-/*
-** Attach a table to a session. All subsequent changes made to the table
-** while the session object is enabled will be recorded.
-**
-** Only tables that have a PRIMARY KEY defined may be attached. It does
-** not matter if the PRIMARY KEY is an "INTEGER PRIMARY KEY" (rowid alias)
-** or not.
-*/
-SQLITE_API int tdsqlite3session_attach(
-  tdsqlite3_session *pSession,      /* Session object */
-  const char *zName               /* Table name */
-){
-  int rc = SQLITE_OK;
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(pSession->db));
-
-  if( !zName ){
-    pSession->bAutoAttach = 1;
-  }else{
-    SessionTable *pTab;           /* New table object (if required) */
-    int nName;                    /* Number of bytes in string zName */
-
-    /* First search for an existing entry. If one is found, this call is
-    ** a no-op. Return early. */
-    nName = tdsqlite3Strlen30(zName);
-    for(pTab=pSession->pTable; pTab; pTab=pTab->pNext){
-      if( 0==tdsqlite3_strnicmp(pTab->zName, zName, nName+1) ) break;
-    }
-
-    if( !pTab ){
-      /* Allocate new SessionTable object. */
-      pTab = (SessionTable *)tdsqlite3_malloc64(sizeof(SessionTable) + nName + 1);
-      if( !pTab ){
-        rc = SQLITE_NOMEM;
-      }else{
-        /* Populate the new SessionTable object and link it into the list.
-        ** The new object must be linked onto the end of the list, not 
-        ** simply added to the start of it in order to ensure that tables
-        ** appear in the correct order when a changeset or patchset is
-        ** eventually generated. */
-        SessionTable **ppTab;
-        memset(pTab, 0, sizeof(SessionTable));
-        pTab->zName = (char *)&pTab[1];
-        memcpy(pTab->zName, zName, nName+1);
-        for(ppTab=&pSession->pTable; *ppTab; ppTab=&(*ppTab)->pNext);
-        *ppTab = pTab;
-      }
-    }
-  }
-
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(pSession->db));
-  return rc;
-}
-
-/*
-** Ensure that there is room in the buffer to append nByte bytes of data.
-** If not, use tdsqlite3_realloc() to grow the buffer so that there is.
-**
-** If successful, return zero. Otherwise, if an OOM condition is encountered,
-** set *pRc to SQLITE_NOMEM and return non-zero.
-*/
-static int sessionBufferGrow(SessionBuffer *p, size_t nByte, int *pRc){
-  if( *pRc==SQLITE_OK && (size_t)(p->nAlloc-p->nBuf)<nByte ){
-    u8 *aNew;
-    i64 nNew = p->nAlloc ? p->nAlloc : 128;
-    do {
-      nNew = nNew*2;
-    }while( (size_t)(nNew-p->nBuf)<nByte );
-
-    aNew = (u8 *)tdsqlite3_realloc64(p->aBuf, nNew);
-    if( 0==aNew ){
-      *pRc = SQLITE_NOMEM;
-    }else{
-      p->aBuf = aNew;
-      p->nAlloc = nNew;
-    }
-  }
-  return (*pRc!=SQLITE_OK);
-}
-
-/*
-** Append the value passed as the second argument to the buffer passed
-** as the first.
-**
-** This function is a no-op if *pRc is non-zero when it is called.
-** Otherwise, if an error occurs, *pRc is set to an SQLite error code
-** before returning.
-*/
-static void sessionAppendValue(SessionBuffer *p, tdsqlite3_value *pVal, int *pRc){
-  int rc = *pRc;
-  if( rc==SQLITE_OK ){
-    tdsqlite3_int64 nByte = 0;
-    rc = sessionSerializeValue(0, pVal, &nByte);
-    sessionBufferGrow(p, nByte, &rc);
-    if( rc==SQLITE_OK ){
-      rc = sessionSerializeValue(&p->aBuf[p->nBuf], pVal, 0);
-      p->nBuf += nByte;
-    }else{
-      *pRc = rc;
-    }
-  }
-}
-
-/*
-** This function is a no-op if *pRc is other than SQLITE_OK when it is 
-** called. Otherwise, append a single byte to the buffer. 
-**
-** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
-** returning.
-*/
-static void sessionAppendByte(SessionBuffer *p, u8 v, int *pRc){
-  if( 0==sessionBufferGrow(p, 1, pRc) ){
-    p->aBuf[p->nBuf++] = v;
-  }
-}
-
-/*
-** This function is a no-op if *pRc is other than SQLITE_OK when it is 
-** called. Otherwise, append a single varint to the buffer. 
-**
-** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
-** returning.
-*/
-static void sessionAppendVarint(SessionBuffer *p, int v, int *pRc){
-  if( 0==sessionBufferGrow(p, 9, pRc) ){
-    p->nBuf += sessionVarintPut(&p->aBuf[p->nBuf], v);
-  }
-}
-
-/*
-** This function is a no-op if *pRc is other than SQLITE_OK when it is 
-** called. Otherwise, append a blob of data to the buffer. 
-**
-** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
-** returning.
-*/
-static void sessionAppendBlob(
-  SessionBuffer *p, 
-  const u8 *aBlob, 
-  int nBlob, 
-  int *pRc
-){
-  if( nBlob>0 && 0==sessionBufferGrow(p, nBlob, pRc) ){
-    memcpy(&p->aBuf[p->nBuf], aBlob, nBlob);
-    p->nBuf += nBlob;
-  }
-}
-
-/*
-** This function is a no-op if *pRc is other than SQLITE_OK when it is 
-** called. Otherwise, append a string to the buffer. All bytes in the string
-** up to (but not including) the nul-terminator are written to the buffer.
-**
-** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
-** returning.
-*/
-static void sessionAppendStr(
-  SessionBuffer *p, 
-  const char *zStr, 
-  int *pRc
-){
-  int nStr = tdsqlite3Strlen30(zStr);
-  if( 0==sessionBufferGrow(p, nStr, pRc) ){
-    memcpy(&p->aBuf[p->nBuf], zStr, nStr);
-    p->nBuf += nStr;
-  }
-}
-
-/*
-** This function is a no-op if *pRc is other than SQLITE_OK when it is 
-** called. Otherwise, append the string representation of integer iVal
-** to the buffer. No nul-terminator is written.
-**
-** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
-** returning.
-*/
-static void sessionAppendInteger(
-  SessionBuffer *p,               /* Buffer to append to */
-  int iVal,                       /* Value to write the string rep. of */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  char aBuf[24];
-  tdsqlite3_snprintf(sizeof(aBuf)-1, aBuf, "%d", iVal);
-  sessionAppendStr(p, aBuf, pRc);
-}
-
-/*
-** This function is a no-op if *pRc is other than SQLITE_OK when it is 
-** called. Otherwise, append the string zStr enclosed in quotes (") and
-** with any embedded quote characters escaped to the buffer. No 
-** nul-terminator byte is written.
-**
-** If an OOM condition is encountered, set *pRc to SQLITE_NOMEM before
-** returning.
-*/
-static void sessionAppendIdent(
-  SessionBuffer *p,               /* Buffer to a append to */
-  const char *zStr,               /* String to quote, escape and append */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  int nStr = tdsqlite3Strlen30(zStr)*2 + 2 + 1;
-  if( 0==sessionBufferGrow(p, nStr, pRc) ){
-    char *zOut = (char *)&p->aBuf[p->nBuf];
-    const char *zIn = zStr;
-    *zOut++ = '"';
-    while( *zIn ){
-      if( *zIn=='"' ) *zOut++ = '"';
-      *zOut++ = *(zIn++);
-    }
-    *zOut++ = '"';
-    p->nBuf = (int)((u8 *)zOut - p->aBuf);
-  }
-}
-
-/*
-** This function is a no-op if *pRc is other than SQLITE_OK when it is
-** called. Otherwse, it appends the serialized version of the value stored
-** in column iCol of the row that SQL statement pStmt currently points
-** to to the buffer.
-*/
-static void sessionAppendCol(
-  SessionBuffer *p,               /* Buffer to append to */
-  tdsqlite3_stmt *pStmt,            /* Handle pointing to row containing value */
-  int iCol,                       /* Column to read value from */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  if( *pRc==SQLITE_OK ){
-    int eType = tdsqlite3_column_type(pStmt, iCol);
-    sessionAppendByte(p, (u8)eType, pRc);
-    if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-      tdsqlite3_int64 i;
-      u8 aBuf[8];
-      if( eType==SQLITE_INTEGER ){
-        i = tdsqlite3_column_int64(pStmt, iCol);
-      }else{
-        double r = tdsqlite3_column_double(pStmt, iCol);
-        memcpy(&i, &r, 8);
-      }
-      sessionPutI64(aBuf, i);
-      sessionAppendBlob(p, aBuf, 8, pRc);
-    }
-    if( eType==SQLITE_BLOB || eType==SQLITE_TEXT ){
-      u8 *z;
-      int nByte;
-      if( eType==SQLITE_BLOB ){
-        z = (u8 *)tdsqlite3_column_blob(pStmt, iCol);
-      }else{
-        z = (u8 *)tdsqlite3_column_text(pStmt, iCol);
-      }
-      nByte = tdsqlite3_column_bytes(pStmt, iCol);
-      if( z || (eType==SQLITE_BLOB && nByte==0) ){
-        sessionAppendVarint(p, nByte, pRc);
-        sessionAppendBlob(p, z, nByte, pRc);
-      }else{
-        *pRc = SQLITE_NOMEM;
-      }
-    }
-  }
-}
-
-/*
-**
-** This function appends an update change to the buffer (see the comments 
-** under "CHANGESET FORMAT" at the top of the file). An update change 
-** consists of:
-**
-**   1 byte:  SQLITE_UPDATE (0x17)
-**   n bytes: old.* record (see RECORD FORMAT)
-**   m bytes: new.* record (see RECORD FORMAT)
-**
-** The SessionChange object passed as the third argument contains the
-** values that were stored in the row when the session began (the old.*
-** values). The statement handle passed as the second argument points
-** at the current version of the row (the new.* values).
-**
-** If all of the old.* values are equal to their corresponding new.* value
-** (i.e. nothing has changed), then no data at all is appended to the buffer.
-**
-** Otherwise, the old.* record contains all primary key values and the 
-** original values of any fields that have been modified. The new.* record 
-** contains the new values of only those fields that have been modified.
-*/ 
-static int sessionAppendUpdate(
-  SessionBuffer *pBuf,            /* Buffer to append to */
-  int bPatchset,                  /* True for "patchset", 0 for "changeset" */
-  tdsqlite3_stmt *pStmt,            /* Statement handle pointing at new row */
-  SessionChange *p,               /* Object containing old values */
-  u8 *abPK                        /* Boolean array - true for PK columns */
-){
-  int rc = SQLITE_OK;
-  SessionBuffer buf2 = {0,0,0}; /* Buffer to accumulate new.* record in */
-  int bNoop = 1;                /* Set to zero if any values are modified */
-  int nRewind = pBuf->nBuf;     /* Set to zero if any values are modified */
-  int i;                        /* Used to iterate through columns */
-  u8 *pCsr = p->aRecord;        /* Used to iterate through old.* values */
-
-  sessionAppendByte(pBuf, SQLITE_UPDATE, &rc);
-  sessionAppendByte(pBuf, p->bIndirect, &rc);
-  for(i=0; i<tdsqlite3_column_count(pStmt); i++){
-    int bChanged = 0;
-    int nAdvance;
-    int eType = *pCsr;
-    switch( eType ){
-      case SQLITE_NULL:
-        nAdvance = 1;
-        if( tdsqlite3_column_type(pStmt, i)!=SQLITE_NULL ){
-          bChanged = 1;
-        }
-        break;
-
-      case SQLITE_FLOAT:
-      case SQLITE_INTEGER: {
-        nAdvance = 9;
-        if( eType==tdsqlite3_column_type(pStmt, i) ){
-          tdsqlite3_int64 iVal = sessionGetI64(&pCsr[1]);
-          if( eType==SQLITE_INTEGER ){
-            if( iVal==tdsqlite3_column_int64(pStmt, i) ) break;
-          }else{
-            double dVal;
-            memcpy(&dVal, &iVal, 8);
-            if( dVal==tdsqlite3_column_double(pStmt, i) ) break;
-          }
-        }
-        bChanged = 1;
-        break;
-      }
-
-      default: {
-        int n;
-        int nHdr = 1 + sessionVarintGet(&pCsr[1], &n);
-        assert( eType==SQLITE_TEXT || eType==SQLITE_BLOB );
-        nAdvance = nHdr + n;
-        if( eType==tdsqlite3_column_type(pStmt, i) 
-         && n==tdsqlite3_column_bytes(pStmt, i) 
-         && (n==0 || 0==memcmp(&pCsr[nHdr], tdsqlite3_column_blob(pStmt, i), n))
-        ){
-          break;
-        }
-        bChanged = 1;
-      }
-    }
-
-    /* If at least one field has been modified, this is not a no-op. */
-    if( bChanged ) bNoop = 0;
-
-    /* Add a field to the old.* record. This is omitted if this modules is
-    ** currently generating a patchset. */
-    if( bPatchset==0 ){
-      if( bChanged || abPK[i] ){
-        sessionAppendBlob(pBuf, pCsr, nAdvance, &rc);
-      }else{
-        sessionAppendByte(pBuf, 0, &rc);
-      }
-    }
-
-    /* Add a field to the new.* record. Or the only record if currently
-    ** generating a patchset.  */
-    if( bChanged || (bPatchset && abPK[i]) ){
-      sessionAppendCol(&buf2, pStmt, i, &rc);
-    }else{
-      sessionAppendByte(&buf2, 0, &rc);
-    }
-
-    pCsr += nAdvance;
-  }
-
-  if( bNoop ){
-    pBuf->nBuf = nRewind;
-  }else{
-    sessionAppendBlob(pBuf, buf2.aBuf, buf2.nBuf, &rc);
-  }
-  tdsqlite3_free(buf2.aBuf);
-
-  return rc;
-}
-
-/*
-** Append a DELETE change to the buffer passed as the first argument. Use
-** the changeset format if argument bPatchset is zero, or the patchset
-** format otherwise.
-*/
-static int sessionAppendDelete(
-  SessionBuffer *pBuf,            /* Buffer to append to */
-  int bPatchset,                  /* True for "patchset", 0 for "changeset" */
-  SessionChange *p,               /* Object containing old values */
-  int nCol,                       /* Number of columns in table */
-  u8 *abPK                        /* Boolean array - true for PK columns */
-){
-  int rc = SQLITE_OK;
-
-  sessionAppendByte(pBuf, SQLITE_DELETE, &rc);
-  sessionAppendByte(pBuf, p->bIndirect, &rc);
-
-  if( bPatchset==0 ){
-    sessionAppendBlob(pBuf, p->aRecord, p->nRecord, &rc);
-  }else{
-    int i;
-    u8 *a = p->aRecord;
-    for(i=0; i<nCol; i++){
-      u8 *pStart = a;
-      int eType = *a++;
-
-      switch( eType ){
-        case 0:
-        case SQLITE_NULL:
-          assert( abPK[i]==0 );
-          break;
-
-        case SQLITE_FLOAT:
-        case SQLITE_INTEGER:
-          a += 8;
-          break;
-
-        default: {
-          int n;
-          a += sessionVarintGet(a, &n);
-          a += n;
-          break;
-        }
-      }
-      if( abPK[i] ){
-        sessionAppendBlob(pBuf, pStart, (int)(a-pStart), &rc);
-      }
-    }
-    assert( (a - p->aRecord)==p->nRecord );
-  }
-
-  return rc;
-}
-
-/*
-** Formulate and prepare a SELECT statement to retrieve a row from table
-** zTab in database zDb based on its primary key. i.e.
-**
-**   SELECT * FROM zDb.zTab WHERE pk1 = ? AND pk2 = ? AND ...
-*/
-static int sessionSelectStmt(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Database name */
-  const char *zTab,               /* Table name */
-  int nCol,                       /* Number of columns in table */
-  const char **azCol,             /* Names of table columns */
-  u8 *abPK,                       /* PRIMARY KEY  array */
-  tdsqlite3_stmt **ppStmt           /* OUT: Prepared SELECT statement */
-){
-  int rc = SQLITE_OK;
-  char *zSql = 0;
-  int nSql = -1;
-
-  if( 0==tdsqlite3_stricmp("sqlite_stat1", zTab) ){
-    zSql = tdsqlite3_mprintf(
-        "SELECT tbl, ?2, stat FROM %Q.sqlite_stat1 WHERE tbl IS ?1 AND "
-        "idx IS (CASE WHEN ?2=X'' THEN NULL ELSE ?2 END)", zDb
-    );
-    if( zSql==0 ) rc = SQLITE_NOMEM;
-  }else{
-    int i;
-    const char *zSep = "";
-    SessionBuffer buf = {0, 0, 0};
-
-    sessionAppendStr(&buf, "SELECT * FROM ", &rc);
-    sessionAppendIdent(&buf, zDb, &rc);
-    sessionAppendStr(&buf, ".", &rc);
-    sessionAppendIdent(&buf, zTab, &rc);
-    sessionAppendStr(&buf, " WHERE ", &rc);
-    for(i=0; i<nCol; i++){
-      if( abPK[i] ){
-        sessionAppendStr(&buf, zSep, &rc);
-        sessionAppendIdent(&buf, azCol[i], &rc);
-        sessionAppendStr(&buf, " IS ?", &rc);
-        sessionAppendInteger(&buf, i+1, &rc);
-        zSep = " AND ";
-      }
-    }
-    zSql = (char*)buf.aBuf;
-    nSql = buf.nBuf;
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_prepare_v2(db, zSql, nSql, ppStmt, 0);
-  }
-  tdsqlite3_free(zSql);
-  return rc;
-}
-
-/*
-** Bind the PRIMARY KEY values from the change passed in argument pChange
-** to the SELECT statement passed as the first argument. The SELECT statement
-** is as prepared by function sessionSelectStmt().
-**
-** Return SQLITE_OK if all PK values are successfully bound, or an SQLite
-** error code (e.g. SQLITE_NOMEM) otherwise.
-*/
-static int sessionSelectBind(
-  tdsqlite3_stmt *pSelect,          /* SELECT from sessionSelectStmt() */
-  int nCol,                       /* Number of columns in table */
-  u8 *abPK,                       /* PRIMARY KEY array */
-  SessionChange *pChange          /* Change structure */
-){
-  int i;
-  int rc = SQLITE_OK;
-  u8 *a = pChange->aRecord;
-
-  for(i=0; i<nCol && rc==SQLITE_OK; i++){
-    int eType = *a++;
-
-    switch( eType ){
-      case 0:
-      case SQLITE_NULL:
-        assert( abPK[i]==0 );
-        break;
-
-      case SQLITE_INTEGER: {
-        if( abPK[i] ){
-          i64 iVal = sessionGetI64(a);
-          rc = tdsqlite3_bind_int64(pSelect, i+1, iVal);
-        }
-        a += 8;
-        break;
-      }
-
-      case SQLITE_FLOAT: {
-        if( abPK[i] ){
-          double rVal;
-          i64 iVal = sessionGetI64(a);
-          memcpy(&rVal, &iVal, 8);
-          rc = tdsqlite3_bind_double(pSelect, i+1, rVal);
-        }
-        a += 8;
-        break;
-      }
-
-      case SQLITE_TEXT: {
-        int n;
-        a += sessionVarintGet(a, &n);
-        if( abPK[i] ){
-          rc = tdsqlite3_bind_text(pSelect, i+1, (char *)a, n, SQLITE_TRANSIENT);
-        }
-        a += n;
-        break;
-      }
-
-      default: {
-        int n;
-        assert( eType==SQLITE_BLOB );
-        a += sessionVarintGet(a, &n);
-        if( abPK[i] ){
-          rc = tdsqlite3_bind_blob(pSelect, i+1, a, n, SQLITE_TRANSIENT);
-        }
-        a += n;
-        break;
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** This function is a no-op if *pRc is set to other than SQLITE_OK when it
-** is called. Otherwise, append a serialized table header (part of the binary 
-** changeset format) to buffer *pBuf. If an error occurs, set *pRc to an
-** SQLite error code before returning.
-*/
-static void sessionAppendTableHdr(
-  SessionBuffer *pBuf,            /* Append header to this buffer */
-  int bPatchset,                  /* Use the patchset format if true */
-  SessionTable *pTab,             /* Table object to append header for */
-  int *pRc                        /* IN/OUT: Error code */
-){
-  /* Write a table header */
-  sessionAppendByte(pBuf, (bPatchset ? 'P' : 'T'), pRc);
-  sessionAppendVarint(pBuf, pTab->nCol, pRc);
-  sessionAppendBlob(pBuf, pTab->abPK, pTab->nCol, pRc);
-  sessionAppendBlob(pBuf, (u8 *)pTab->zName, (int)strlen(pTab->zName)+1, pRc);
-}
-
-/*
-** Generate either a changeset (if argument bPatchset is zero) or a patchset
-** (if it is non-zero) based on the current contents of the session object
-** passed as the first argument.
-**
-** If no error occurs, SQLITE_OK is returned and the new changeset/patchset
-** stored in output variables *pnChangeset and *ppChangeset. Or, if an error
-** occurs, an SQLite error code is returned and both output variables set 
-** to 0.
-*/
-static int sessionGenerateChangeset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int bPatchset,                  /* True for patchset, false for changeset */
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut,                     /* First argument for xOutput */
-  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
-  void **ppChangeset              /* OUT: Buffer containing changeset */
-){
-  tdsqlite3 *db = pSession->db;     /* Source database handle */
-  SessionTable *pTab;             /* Used to iterate through attached tables */
-  SessionBuffer buf = {0,0,0};    /* Buffer in which to accumlate changeset */
-  int rc;                         /* Return code */
-
-  assert( xOutput==0 || (pnChangeset==0 && ppChangeset==0 ) );
-
-  /* Zero the output variables in case an error occurs. If this session
-  ** object is already in the error state (tdsqlite3_session.rc != SQLITE_OK),
-  ** this call will be a no-op.  */
-  if( xOutput==0 ){
-    *pnChangeset = 0;
-    *ppChangeset = 0;
-  }
-
-  if( pSession->rc ) return pSession->rc;
-  rc = tdsqlite3_exec(pSession->db, "SAVEPOINT changeset", 0, 0, 0);
-  if( rc!=SQLITE_OK ) return rc;
-
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(db));
-
-  for(pTab=pSession->pTable; rc==SQLITE_OK && pTab; pTab=pTab->pNext){
-    if( pTab->nEntry ){
-      const char *zName = pTab->zName;
-      int nCol;                   /* Number of columns in table */
-      u8 *abPK;                   /* Primary key array */
-      const char **azCol = 0;     /* Table columns */
-      int i;                      /* Used to iterate through hash buckets */
-      tdsqlite3_stmt *pSel = 0;     /* SELECT statement to query table pTab */
-      int nRewind = buf.nBuf;     /* Initial size of write buffer */
-      int nNoop;                  /* Size of buffer after writing tbl header */
-
-      /* Check the table schema is still Ok. */
-      rc = sessionTableInfo(db, pSession->zDb, zName, &nCol, 0, &azCol, &abPK);
-      if( !rc && (pTab->nCol!=nCol || memcmp(abPK, pTab->abPK, nCol)) ){
-        rc = SQLITE_SCHEMA;
-      }
-
-      /* Write a table header */
-      sessionAppendTableHdr(&buf, bPatchset, pTab, &rc);
-
-      /* Build and compile a statement to execute: */
-      if( rc==SQLITE_OK ){
-        rc = sessionSelectStmt(
-            db, pSession->zDb, zName, nCol, azCol, abPK, &pSel);
-      }
-
-      nNoop = buf.nBuf;
-      for(i=0; i<pTab->nChange && rc==SQLITE_OK; i++){
-        SessionChange *p;         /* Used to iterate through changes */
-
-        for(p=pTab->apChange[i]; rc==SQLITE_OK && p; p=p->pNext){
-          rc = sessionSelectBind(pSel, nCol, abPK, p);
-          if( rc!=SQLITE_OK ) continue;
-          if( tdsqlite3_step(pSel)==SQLITE_ROW ){
-            if( p->op==SQLITE_INSERT ){
-              int iCol;
-              sessionAppendByte(&buf, SQLITE_INSERT, &rc);
-              sessionAppendByte(&buf, p->bIndirect, &rc);
-              for(iCol=0; iCol<nCol; iCol++){
-                sessionAppendCol(&buf, pSel, iCol, &rc);
-              }
-            }else{
-              rc = sessionAppendUpdate(&buf, bPatchset, pSel, p, abPK);
-            }
-          }else if( p->op!=SQLITE_INSERT ){
-            rc = sessionAppendDelete(&buf, bPatchset, p, nCol, abPK);
-          }
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3_reset(pSel);
-          }
-
-          /* If the buffer is now larger than sessions_strm_chunk_size, pass
-          ** its contents to the xOutput() callback. */
-          if( xOutput 
-           && rc==SQLITE_OK 
-           && buf.nBuf>nNoop 
-           && buf.nBuf>sessions_strm_chunk_size 
-          ){
-            rc = xOutput(pOut, (void*)buf.aBuf, buf.nBuf);
-            nNoop = -1;
-            buf.nBuf = 0;
-          }
-
-        }
-      }
-
-      tdsqlite3_finalize(pSel);
-      if( buf.nBuf==nNoop ){
-        buf.nBuf = nRewind;
-      }
-      tdsqlite3_free((char*)azCol);  /* cast works around VC++ bug */
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    if( xOutput==0 ){
-      *pnChangeset = buf.nBuf;
-      *ppChangeset = buf.aBuf;
-      buf.aBuf = 0;
-    }else if( buf.nBuf>0 ){
-      rc = xOutput(pOut, (void*)buf.aBuf, buf.nBuf);
-    }
-  }
-
-  tdsqlite3_free(buf.aBuf);
-  tdsqlite3_exec(db, "RELEASE changeset", 0, 0, 0);
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(db));
-  return rc;
-}
-
-/*
-** Obtain a changeset object containing all changes recorded by the 
-** session object passed as the first argument.
-**
-** It is the responsibility of the caller to eventually free the buffer 
-** using tdsqlite3_free().
-*/
-SQLITE_API int tdsqlite3session_changeset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
-  void **ppChangeset              /* OUT: Buffer containing changeset */
-){
-  return sessionGenerateChangeset(pSession, 0, 0, 0, pnChangeset, ppChangeset);
-}
-
-/*
-** Streaming version of tdsqlite3session_changeset().
-*/
-SQLITE_API int tdsqlite3session_changeset_strm(
-  tdsqlite3_session *pSession,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-){
-  return sessionGenerateChangeset(pSession, 0, xOutput, pOut, 0, 0);
-}
-
-/*
-** Streaming version of tdsqlite3session_patchset().
-*/
-SQLITE_API int tdsqlite3session_patchset_strm(
-  tdsqlite3_session *pSession,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-){
-  return sessionGenerateChangeset(pSession, 1, xOutput, pOut, 0, 0);
-}
-
-/*
-** Obtain a patchset object containing all changes recorded by the 
-** session object passed as the first argument.
-**
-** It is the responsibility of the caller to eventually free the buffer 
-** using tdsqlite3_free().
-*/
-SQLITE_API int tdsqlite3session_patchset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int *pnPatchset,                /* OUT: Size of buffer at *ppChangeset */
-  void **ppPatchset               /* OUT: Buffer containing changeset */
-){
-  return sessionGenerateChangeset(pSession, 1, 0, 0, pnPatchset, ppPatchset);
-}
-
-/*
-** Enable or disable the session object passed as the first argument.
-*/
-SQLITE_API int tdsqlite3session_enable(tdsqlite3_session *pSession, int bEnable){
-  int ret;
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(pSession->db));
-  if( bEnable>=0 ){
-    pSession->bEnable = bEnable;
-  }
-  ret = pSession->bEnable;
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(pSession->db));
-  return ret;
-}
-
-/*
-** Enable or disable the session object passed as the first argument.
-*/
-SQLITE_API int tdsqlite3session_indirect(tdsqlite3_session *pSession, int bIndirect){
-  int ret;
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(pSession->db));
-  if( bIndirect>=0 ){
-    pSession->bIndirect = bIndirect;
-  }
-  ret = pSession->bIndirect;
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(pSession->db));
-  return ret;
-}
-
-/*
-** Return true if there have been no changes to monitored tables recorded
-** by the session object passed as the only argument.
-*/
-SQLITE_API int tdsqlite3session_isempty(tdsqlite3_session *pSession){
-  int ret = 0;
-  SessionTable *pTab;
-
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(pSession->db));
-  for(pTab=pSession->pTable; pTab && ret==0; pTab=pTab->pNext){
-    ret = (pTab->nEntry>0);
-  }
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(pSession->db));
-
-  return (ret==0);
-}
-
-/*
-** Do the work for either tdsqlite3changeset_start() or start_strm().
-*/
-static int sessionChangesetStart(
-  tdsqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int nChangeset,                 /* Size of buffer pChangeset in bytes */
-  void *pChangeset,               /* Pointer to buffer containing changeset */
-  int bInvert                     /* True to invert changeset */
-){
-  tdsqlite3_changeset_iter *pRet;   /* Iterator to return */
-  int nByte;                      /* Number of bytes to allocate for iterator */
-
-  assert( xInput==0 || (pChangeset==0 && nChangeset==0) );
-
-  /* Zero the output variable in case an error occurs. */
-  *pp = 0;
-
-  /* Allocate and initialize the iterator structure. */
-  nByte = sizeof(tdsqlite3_changeset_iter);
-  pRet = (tdsqlite3_changeset_iter *)tdsqlite3_malloc(nByte);
-  if( !pRet ) return SQLITE_NOMEM;
-  memset(pRet, 0, sizeof(tdsqlite3_changeset_iter));
-  pRet->in.aData = (u8 *)pChangeset;
-  pRet->in.nData = nChangeset;
-  pRet->in.xInput = xInput;
-  pRet->in.pIn = pIn;
-  pRet->in.bEof = (xInput ? 0 : 1);
-  pRet->bInvert = bInvert;
-
-  /* Populate the output variable and return success. */
-  *pp = pRet;
-  return SQLITE_OK;
-}
-
-/*
-** Create an iterator used to iterate through the contents of a changeset.
-*/
-SQLITE_API int tdsqlite3changeset_start(
-  tdsqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
-  int nChangeset,                 /* Size of buffer pChangeset in bytes */
-  void *pChangeset                /* Pointer to buffer containing changeset */
-){
-  return sessionChangesetStart(pp, 0, 0, nChangeset, pChangeset, 0);
-}
-SQLITE_API int tdsqlite3changeset_start_v2(
-  tdsqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
-  int nChangeset,                 /* Size of buffer pChangeset in bytes */
-  void *pChangeset,               /* Pointer to buffer containing changeset */
-  int flags
-){
-  int bInvert = !!(flags & SQLITE_CHANGESETSTART_INVERT);
-  return sessionChangesetStart(pp, 0, 0, nChangeset, pChangeset, bInvert);
-}
-
-/*
-** Streaming version of tdsqlite3changeset_start().
-*/
-SQLITE_API int tdsqlite3changeset_start_strm(
-  tdsqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn
-){
-  return sessionChangesetStart(pp, xInput, pIn, 0, 0, 0);
-}
-SQLITE_API int tdsqlite3changeset_start_v2_strm(
-  tdsqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int flags
-){
-  int bInvert = !!(flags & SQLITE_CHANGESETSTART_INVERT);
-  return sessionChangesetStart(pp, xInput, pIn, 0, 0, bInvert);
-}
-
-/*
-** If the SessionInput object passed as the only argument is a streaming
-** object and the buffer is full, discard some data to free up space.
-*/
-static void sessionDiscardData(SessionInput *pIn){
-  if( pIn->xInput && pIn->iNext>=sessions_strm_chunk_size ){
-    int nMove = pIn->buf.nBuf - pIn->iNext;
-    assert( nMove>=0 );
-    if( nMove>0 ){
-      memmove(pIn->buf.aBuf, &pIn->buf.aBuf[pIn->iNext], nMove);
-    }
-    pIn->buf.nBuf -= pIn->iNext;
-    pIn->iNext = 0;
-    pIn->nData = pIn->buf.nBuf;
-  }
-}
-
-/*
-** Ensure that there are at least nByte bytes available in the buffer. Or,
-** if there are not nByte bytes remaining in the input, that all available
-** data is in the buffer.
-**
-** Return an SQLite error code if an error occurs, or SQLITE_OK otherwise.
-*/
-static int sessionInputBuffer(SessionInput *pIn, int nByte){
-  int rc = SQLITE_OK;
-  if( pIn->xInput ){
-    while( !pIn->bEof && (pIn->iNext+nByte)>=pIn->nData && rc==SQLITE_OK ){
-      int nNew = sessions_strm_chunk_size;
-
-      if( pIn->bNoDiscard==0 ) sessionDiscardData(pIn);
-      if( SQLITE_OK==sessionBufferGrow(&pIn->buf, nNew, &rc) ){
-        rc = pIn->xInput(pIn->pIn, &pIn->buf.aBuf[pIn->buf.nBuf], &nNew);
-        if( nNew==0 ){
-          pIn->bEof = 1;
-        }else{
-          pIn->buf.nBuf += nNew;
-        }
-      }
-
-      pIn->aData = pIn->buf.aBuf;
-      pIn->nData = pIn->buf.nBuf;
-    }
-  }
-  return rc;
-}
-
-/*
-** When this function is called, *ppRec points to the start of a record
-** that contains nCol values. This function advances the pointer *ppRec
-** until it points to the byte immediately following that record.
-*/
-static void sessionSkipRecord(
-  u8 **ppRec,                     /* IN/OUT: Record pointer */
-  int nCol                        /* Number of values in record */
-){
-  u8 *aRec = *ppRec;
-  int i;
-  for(i=0; i<nCol; i++){
-    int eType = *aRec++;
-    if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){
-      int nByte;
-      aRec += sessionVarintGet((u8*)aRec, &nByte);
-      aRec += nByte;
-    }else if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-      aRec += 8;
-    }
-  }
-
-  *ppRec = aRec;
-}
-
-/*
-** This function sets the value of the tdsqlite3_value object passed as the
-** first argument to a copy of the string or blob held in the aData[] 
-** buffer. SQLITE_OK is returned if successful, or SQLITE_NOMEM if an OOM
-** error occurs.
-*/
-static int sessionValueSetStr(
-  tdsqlite3_value *pVal,            /* Set the value of this object */
-  u8 *aData,                      /* Buffer containing string or blob data */
-  int nData,                      /* Size of buffer aData[] in bytes */
-  u8 enc                          /* String encoding (0 for blobs) */
-){
-  /* In theory this code could just pass SQLITE_TRANSIENT as the final
-  ** argument to tdsqlite3ValueSetStr() and have the copy created 
-  ** automatically. But doing so makes it difficult to detect any OOM
-  ** error. Hence the code to create the copy externally. */
-  u8 *aCopy = tdsqlite3_malloc64((tdsqlite3_int64)nData+1);
-  if( aCopy==0 ) return SQLITE_NOMEM;
-  memcpy(aCopy, aData, nData);
-  tdsqlite3ValueSetStr(pVal, nData, (char*)aCopy, enc, tdsqlite3_free);
-  return SQLITE_OK;
-}
-
-/*
-** Deserialize a single record from a buffer in memory. See "RECORD FORMAT"
-** for details.
-**
-** When this function is called, *paChange points to the start of the record
-** to deserialize. Assuming no error occurs, *paChange is set to point to
-** one byte after the end of the same record before this function returns.
-** If the argument abPK is NULL, then the record contains nCol values. Or,
-** if abPK is other than NULL, then the record contains only the PK fields
-** (in other words, it is a patchset DELETE record).
-**
-** If successful, each element of the apOut[] array (allocated by the caller)
-** is set to point to an tdsqlite3_value object containing the value read
-** from the corresponding position in the record. If that value is not
-** included in the record (i.e. because the record is part of an UPDATE change
-** and the field was not modified), the corresponding element of apOut[] is
-** set to NULL.
-**
-** It is the responsibility of the caller to free all sqlite_value structures
-** using tdsqlite3_free().
-**
-** If an error occurs, an SQLite error code (e.g. SQLITE_NOMEM) is returned.
-** The apOut[] array may have been partially populated in this case.
-*/
-static int sessionReadRecord(
-  SessionInput *pIn,              /* Input data */
-  int nCol,                       /* Number of values in record */
-  u8 *abPK,                       /* Array of primary key flags, or NULL */
-  tdsqlite3_value **apOut           /* Write values to this array */
-){
-  int i;                          /* Used to iterate through columns */
-  int rc = SQLITE_OK;
-
-  for(i=0; i<nCol && rc==SQLITE_OK; i++){
-    int eType = 0;                /* Type of value (SQLITE_NULL, TEXT etc.) */
-    if( abPK && abPK[i]==0 ) continue;
-    rc = sessionInputBuffer(pIn, 9);
-    if( rc==SQLITE_OK ){
-      if( pIn->iNext>=pIn->nData ){
-        rc = SQLITE_CORRUPT_BKPT;
-      }else{
-        eType = pIn->aData[pIn->iNext++];
-        assert( apOut[i]==0 );
-        if( eType ){
-          apOut[i] = tdsqlite3ValueNew(0);
-          if( !apOut[i] ) rc = SQLITE_NOMEM;
-        }
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      u8 *aVal = &pIn->aData[pIn->iNext];
-      if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){
-        int nByte;
-        pIn->iNext += sessionVarintGet(aVal, &nByte);
-        rc = sessionInputBuffer(pIn, nByte);
-        if( rc==SQLITE_OK ){
-          if( nByte<0 || nByte>pIn->nData-pIn->iNext ){
-            rc = SQLITE_CORRUPT_BKPT;
-          }else{
-            u8 enc = (eType==SQLITE_TEXT ? SQLITE_UTF8 : 0);
-            rc = sessionValueSetStr(apOut[i],&pIn->aData[pIn->iNext],nByte,enc);
-            pIn->iNext += nByte;
-          }
-        }
-      }
-      if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-        tdsqlite3_int64 v = sessionGetI64(aVal);
-        if( eType==SQLITE_INTEGER ){
-          tdsqlite3VdbeMemSetInt64(apOut[i], v);
-        }else{
-          double d;
-          memcpy(&d, &v, 8);
-          tdsqlite3VdbeMemSetDouble(apOut[i], d);
-        }
-        pIn->iNext += 8;
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** The input pointer currently points to the second byte of a table-header.
-** Specifically, to the following:
-**
-**   + number of columns in table (varint)
-**   + array of PK flags (1 byte per column),
-**   + table name (nul terminated).
-**
-** This function ensures that all of the above is present in the input 
-** buffer (i.e. that it can be accessed without any calls to xInput()).
-** If successful, SQLITE_OK is returned. Otherwise, an SQLite error code.
-** The input pointer is not moved.
-*/
-static int sessionChangesetBufferTblhdr(SessionInput *pIn, int *pnByte){
-  int rc = SQLITE_OK;
-  int nCol = 0;
-  int nRead = 0;
-
-  rc = sessionInputBuffer(pIn, 9);
-  if( rc==SQLITE_OK ){
-    nRead += sessionVarintGet(&pIn->aData[pIn->iNext + nRead], &nCol);
-    /* The hard upper limit for the number of columns in an SQLite
-    ** database table is, according to sqliteLimit.h, 32676. So 
-    ** consider any table-header that purports to have more than 65536 
-    ** columns to be corrupt. This is convenient because otherwise, 
-    ** if the (nCol>65536) condition below were omitted, a sufficiently 
-    ** large value for nCol may cause nRead to wrap around and become 
-    ** negative. Leading to a crash. */
-    if( nCol<0 || nCol>65536 ){
-      rc = SQLITE_CORRUPT_BKPT;
-    }else{
-      rc = sessionInputBuffer(pIn, nRead+nCol+100);
-      nRead += nCol;
-    }
-  }
-
-  while( rc==SQLITE_OK ){
-    while( (pIn->iNext + nRead)<pIn->nData && pIn->aData[pIn->iNext + nRead] ){
-      nRead++;
-    }
-    if( (pIn->iNext + nRead)<pIn->nData ) break;
-    rc = sessionInputBuffer(pIn, nRead + 100);
-  }
-  *pnByte = nRead+1;
-  return rc;
-}
-
-/*
-** The input pointer currently points to the first byte of the first field
-** of a record consisting of nCol columns. This function ensures the entire
-** record is buffered. It does not move the input pointer.
-**
-** If successful, SQLITE_OK is returned and *pnByte is set to the size of
-** the record in bytes. Otherwise, an SQLite error code is returned. The
-** final value of *pnByte is undefined in this case.
-*/
-static int sessionChangesetBufferRecord(
-  SessionInput *pIn,              /* Input data */
-  int nCol,                       /* Number of columns in record */
-  int *pnByte                     /* OUT: Size of record in bytes */
-){
-  int rc = SQLITE_OK;
-  int nByte = 0;
-  int i;
-  for(i=0; rc==SQLITE_OK && i<nCol; i++){
-    int eType;
-    rc = sessionInputBuffer(pIn, nByte + 10);
-    if( rc==SQLITE_OK ){
-      eType = pIn->aData[pIn->iNext + nByte++];
-      if( eType==SQLITE_TEXT || eType==SQLITE_BLOB ){
-        int n;
-        nByte += sessionVarintGet(&pIn->aData[pIn->iNext+nByte], &n);
-        nByte += n;
-        rc = sessionInputBuffer(pIn, nByte);
-      }else if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
-        nByte += 8;
-      }
-    }
-  }
-  *pnByte = nByte;
-  return rc;
-}
-
-/*
-** The input pointer currently points to the second byte of a table-header.
-** Specifically, to the following:
-**
-**   + number of columns in table (varint)
-**   + array of PK flags (1 byte per column),
-**   + table name (nul terminated).
-**
-** This function decodes the table-header and populates the p->nCol, 
-** p->zTab and p->abPK[] variables accordingly. The p->apValue[] array is 
-** also allocated or resized according to the new value of p->nCol. The
-** input pointer is left pointing to the byte following the table header.
-**
-** If successful, SQLITE_OK is returned. Otherwise, an SQLite error code
-** is returned and the final values of the various fields enumerated above
-** are undefined.
-*/
-static int sessionChangesetReadTblhdr(tdsqlite3_changeset_iter *p){
-  int rc;
-  int nCopy;
-  assert( p->rc==SQLITE_OK );
-
-  rc = sessionChangesetBufferTblhdr(&p->in, &nCopy);
-  if( rc==SQLITE_OK ){
-    int nByte;
-    int nVarint;
-    nVarint = sessionVarintGet(&p->in.aData[p->in.iNext], &p->nCol);
-    if( p->nCol>0 ){
-      nCopy -= nVarint;
-      p->in.iNext += nVarint;
-      nByte = p->nCol * sizeof(tdsqlite3_value*) * 2 + nCopy;
-      p->tblhdr.nBuf = 0;
-      sessionBufferGrow(&p->tblhdr, nByte, &rc);
-    }else{
-      rc = SQLITE_CORRUPT_BKPT;
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    size_t iPK = sizeof(tdsqlite3_value*)*p->nCol*2;
-    memset(p->tblhdr.aBuf, 0, iPK);
-    memcpy(&p->tblhdr.aBuf[iPK], &p->in.aData[p->in.iNext], nCopy);
-    p->in.iNext += nCopy;
-  }
-
-  p->apValue = (tdsqlite3_value**)p->tblhdr.aBuf;
-  p->abPK = (u8*)&p->apValue[p->nCol*2];
-  p->zTab = (char*)&p->abPK[p->nCol];
-  return (p->rc = rc);
-}
-
-/*
-** Advance the changeset iterator to the next change.
-**
-** If both paRec and pnRec are NULL, then this function works like the public
-** API tdsqlite3changeset_next(). If SQLITE_ROW is returned, then the
-** tdsqlite3changeset_new() and old() APIs may be used to query for values.
-**
-** Otherwise, if paRec and pnRec are not NULL, then a pointer to the change
-** record is written to *paRec before returning and the number of bytes in
-** the record to *pnRec.
-**
-** Either way, this function returns SQLITE_ROW if the iterator is 
-** successfully advanced to the next change in the changeset, an SQLite 
-** error code if an error occurs, or SQLITE_DONE if there are no further 
-** changes in the changeset.
-*/
-static int sessionChangesetNext(
-  tdsqlite3_changeset_iter *p,      /* Changeset iterator */
-  u8 **paRec,                     /* If non-NULL, store record pointer here */
-  int *pnRec,                     /* If non-NULL, store size of record here */
-  int *pbNew                      /* If non-NULL, true if new table */
-){
-  int i;
-  u8 op;
-
-  assert( (paRec==0 && pnRec==0) || (paRec && pnRec) );
-
-  /* If the iterator is in the error-state, return immediately. */
-  if( p->rc!=SQLITE_OK ) return p->rc;
-
-  /* Free the current contents of p->apValue[], if any. */
-  if( p->apValue ){
-    for(i=0; i<p->nCol*2; i++){
-      tdsqlite3ValueFree(p->apValue[i]);
-    }
-    memset(p->apValue, 0, sizeof(tdsqlite3_value*)*p->nCol*2);
-  }
-
-  /* Make sure the buffer contains at least 10 bytes of input data, or all
-  ** remaining data if there are less than 10 bytes available. This is
-  ** sufficient either for the 'T' or 'P' byte and the varint that follows
-  ** it, or for the two single byte values otherwise. */
-  p->rc = sessionInputBuffer(&p->in, 2);
-  if( p->rc!=SQLITE_OK ) return p->rc;
-
-  /* If the iterator is already at the end of the changeset, return DONE. */
-  if( p->in.iNext>=p->in.nData ){
-    return SQLITE_DONE;
-  }
-
-  sessionDiscardData(&p->in);
-  p->in.iCurrent = p->in.iNext;
-
-  op = p->in.aData[p->in.iNext++];
-  while( op=='T' || op=='P' ){
-    if( pbNew ) *pbNew = 1;
-    p->bPatchset = (op=='P');
-    if( sessionChangesetReadTblhdr(p) ) return p->rc;
-    if( (p->rc = sessionInputBuffer(&p->in, 2)) ) return p->rc;
-    p->in.iCurrent = p->in.iNext;
-    if( p->in.iNext>=p->in.nData ) return SQLITE_DONE;
-    op = p->in.aData[p->in.iNext++];
-  }
-
-  if( p->zTab==0 || (p->bPatchset && p->bInvert) ){
-    /* The first record in the changeset is not a table header. Must be a
-    ** corrupt changeset. */
-    assert( p->in.iNext==1 || p->zTab );
-    return (p->rc = SQLITE_CORRUPT_BKPT);
-  }
-
-  p->op = op;
-  p->bIndirect = p->in.aData[p->in.iNext++];
-  if( p->op!=SQLITE_UPDATE && p->op!=SQLITE_DELETE && p->op!=SQLITE_INSERT ){
-    return (p->rc = SQLITE_CORRUPT_BKPT);
-  }
-
-  if( paRec ){ 
-    int nVal;                     /* Number of values to buffer */
-    if( p->bPatchset==0 && op==SQLITE_UPDATE ){
-      nVal = p->nCol * 2;
-    }else if( p->bPatchset && op==SQLITE_DELETE ){
-      nVal = 0;
-      for(i=0; i<p->nCol; i++) if( p->abPK[i] ) nVal++;
-    }else{
-      nVal = p->nCol;
-    }
-    p->rc = sessionChangesetBufferRecord(&p->in, nVal, pnRec);
-    if( p->rc!=SQLITE_OK ) return p->rc;
-    *paRec = &p->in.aData[p->in.iNext];
-    p->in.iNext += *pnRec;
-  }else{
-    tdsqlite3_value **apOld = (p->bInvert ? &p->apValue[p->nCol] : p->apValue);
-    tdsqlite3_value **apNew = (p->bInvert ? p->apValue : &p->apValue[p->nCol]);
-
-    /* If this is an UPDATE or DELETE, read the old.* record. */
-    if( p->op!=SQLITE_INSERT && (p->bPatchset==0 || p->op==SQLITE_DELETE) ){
-      u8 *abPK = p->bPatchset ? p->abPK : 0;
-      p->rc = sessionReadRecord(&p->in, p->nCol, abPK, apOld);
-      if( p->rc!=SQLITE_OK ) return p->rc;
-    }
-
-    /* If this is an INSERT or UPDATE, read the new.* record. */
-    if( p->op!=SQLITE_DELETE ){
-      p->rc = sessionReadRecord(&p->in, p->nCol, 0, apNew);
-      if( p->rc!=SQLITE_OK ) return p->rc;
-    }
-
-    if( (p->bPatchset || p->bInvert) && p->op==SQLITE_UPDATE ){
-      /* If this is an UPDATE that is part of a patchset, then all PK and
-      ** modified fields are present in the new.* record. The old.* record
-      ** is currently completely empty. This block shifts the PK fields from
-      ** new.* to old.*, to accommodate the code that reads these arrays.  */
-      for(i=0; i<p->nCol; i++){
-        assert( p->bPatchset==0 || p->apValue[i]==0 );
-        if( p->abPK[i] ){
-          assert( p->apValue[i]==0 );
-          p->apValue[i] = p->apValue[i+p->nCol];
-          if( p->apValue[i]==0 ) return (p->rc = SQLITE_CORRUPT_BKPT);
-          p->apValue[i+p->nCol] = 0;
-        }
-      }
-    }else if( p->bInvert ){
-      if( p->op==SQLITE_INSERT ) p->op = SQLITE_DELETE;
-      else if( p->op==SQLITE_DELETE ) p->op = SQLITE_INSERT;
-    }
-  }
-
-  return SQLITE_ROW;
-}
-
-/*
-** Advance an iterator created by tdsqlite3changeset_start() to the next
-** change in the changeset. This function may return SQLITE_ROW, SQLITE_DONE
-** or SQLITE_CORRUPT.
-**
-** This function may not be called on iterators passed to a conflict handler
-** callback by changeset_apply().
-*/
-SQLITE_API int tdsqlite3changeset_next(tdsqlite3_changeset_iter *p){
-  return sessionChangesetNext(p, 0, 0, 0);
-}
-
-/*
-** The following function extracts information on the current change
-** from a changeset iterator. It may only be called after changeset_next()
-** has returned SQLITE_ROW.
-*/
-SQLITE_API int tdsqlite3changeset_op(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator handle */
-  const char **pzTab,             /* OUT: Pointer to table name */
-  int *pnCol,                     /* OUT: Number of columns in table */
-  int *pOp,                       /* OUT: SQLITE_INSERT, DELETE or UPDATE */
-  int *pbIndirect                 /* OUT: True if change is indirect */
-){
-  *pOp = pIter->op;
-  *pnCol = pIter->nCol;
-  *pzTab = pIter->zTab;
-  if( pbIndirect ) *pbIndirect = pIter->bIndirect;
-  return SQLITE_OK;
-}
-
-/*
-** Return information regarding the PRIMARY KEY and number of columns in
-** the database table affected by the change that pIter currently points
-** to. This function may only be called after changeset_next() returns
-** SQLITE_ROW.
-*/
-SQLITE_API int tdsqlite3changeset_pk(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator object */
-  unsigned char **pabPK,          /* OUT: Array of boolean - true for PK cols */
-  int *pnCol                      /* OUT: Number of entries in output array */
-){
-  *pabPK = pIter->abPK;
-  if( pnCol ) *pnCol = pIter->nCol;
-  return SQLITE_OK;
-}
-
-/*
-** This function may only be called while the iterator is pointing to an
-** SQLITE_UPDATE or SQLITE_DELETE change (see tdsqlite3changeset_op()).
-** Otherwise, SQLITE_MISUSE is returned.
-**
-** It sets *ppValue to point to an tdsqlite3_value structure containing the
-** iVal'th value in the old.* record. Or, if that particular value is not
-** included in the record (because the change is an UPDATE and the field
-** was not modified and is not a PK column), set *ppValue to NULL.
-**
-** If value iVal is out-of-range, SQLITE_RANGE is returned and *ppValue is
-** not modified. Otherwise, SQLITE_OK.
-*/
-SQLITE_API int tdsqlite3changeset_old(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Index of old.* value to retrieve */
-  tdsqlite3_value **ppValue         /* OUT: Old value (or NULL pointer) */
-){
-  if( pIter->op!=SQLITE_UPDATE && pIter->op!=SQLITE_DELETE ){
-    return SQLITE_MISUSE;
-  }
-  if( iVal<0 || iVal>=pIter->nCol ){
-    return SQLITE_RANGE;
-  }
-  *ppValue = pIter->apValue[iVal];
-  return SQLITE_OK;
-}
-
-/*
-** This function may only be called while the iterator is pointing to an
-** SQLITE_UPDATE or SQLITE_INSERT change (see tdsqlite3changeset_op()).
-** Otherwise, SQLITE_MISUSE is returned.
-**
-** It sets *ppValue to point to an tdsqlite3_value structure containing the
-** iVal'th value in the new.* record. Or, if that particular value is not
-** included in the record (because the change is an UPDATE and the field
-** was not modified), set *ppValue to NULL.
-**
-** If value iVal is out-of-range, SQLITE_RANGE is returned and *ppValue is
-** not modified. Otherwise, SQLITE_OK.
-*/
-SQLITE_API int tdsqlite3changeset_new(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Index of new.* value to retrieve */
-  tdsqlite3_value **ppValue         /* OUT: New value (or NULL pointer) */
-){
-  if( pIter->op!=SQLITE_UPDATE && pIter->op!=SQLITE_INSERT ){
-    return SQLITE_MISUSE;
-  }
-  if( iVal<0 || iVal>=pIter->nCol ){
-    return SQLITE_RANGE;
-  }
-  *ppValue = pIter->apValue[pIter->nCol+iVal];
-  return SQLITE_OK;
-}
-
-/*
-** The following two macros are used internally. They are similar to the
-** tdsqlite3changeset_new() and tdsqlite3changeset_old() functions, except that
-** they omit all error checking and return a pointer to the requested value.
-*/
-#define sessionChangesetNew(pIter, iVal) (pIter)->apValue[(pIter)->nCol+(iVal)]
-#define sessionChangesetOld(pIter, iVal) (pIter)->apValue[(iVal)]
-
-/*
-** This function may only be called with a changeset iterator that has been
-** passed to an SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT 
-** conflict-handler function. Otherwise, SQLITE_MISUSE is returned.
-**
-** If successful, *ppValue is set to point to an tdsqlite3_value structure
-** containing the iVal'th value of the conflicting record.
-**
-** If value iVal is out-of-range or some other error occurs, an SQLite error
-** code is returned. Otherwise, SQLITE_OK.
-*/
-SQLITE_API int tdsqlite3changeset_conflict(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Index of conflict record value to fetch */
-  tdsqlite3_value **ppValue         /* OUT: Value from conflicting row */
-){
-  if( !pIter->pConflict ){
-    return SQLITE_MISUSE;
-  }
-  if( iVal<0 || iVal>=pIter->nCol ){
-    return SQLITE_RANGE;
-  }
-  *ppValue = tdsqlite3_column_value(pIter->pConflict, iVal);
-  return SQLITE_OK;
-}
-
-/*
-** This function may only be called with an iterator passed to an
-** SQLITE_CHANGESET_FOREIGN_KEY conflict handler callback. In this case
-** it sets the output variable to the total number of known foreign key
-** violations in the destination database and returns SQLITE_OK.
-**
-** In all other cases this function returns SQLITE_MISUSE.
-*/
-SQLITE_API int tdsqlite3changeset_fk_conflicts(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int *pnOut                      /* OUT: Number of FK violations */
-){
-  if( pIter->pConflict || pIter->apValue ){
-    return SQLITE_MISUSE;
-  }
-  *pnOut = pIter->nCol;
-  return SQLITE_OK;
-}
-
-
-/*
-** Finalize an iterator allocated with tdsqlite3changeset_start().
-**
-** This function may not be called on iterators passed to a conflict handler
-** callback by changeset_apply().
-*/
-SQLITE_API int tdsqlite3changeset_finalize(tdsqlite3_changeset_iter *p){
-  int rc = SQLITE_OK;
-  if( p ){
-    int i;                        /* Used to iterate through p->apValue[] */
-    rc = p->rc;
-    if( p->apValue ){
-      for(i=0; i<p->nCol*2; i++) tdsqlite3ValueFree(p->apValue[i]);
-    }
-    tdsqlite3_free(p->tblhdr.aBuf);
-    tdsqlite3_free(p->in.buf.aBuf);
-    tdsqlite3_free(p);
-  }
-  return rc;
-}
-
-static int sessionChangesetInvert(
-  SessionInput *pInput,           /* Input changeset */
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut,
-  int *pnInverted,                /* OUT: Number of bytes in output changeset */
-  void **ppInverted               /* OUT: Inverse of pChangeset */
-){
-  int rc = SQLITE_OK;             /* Return value */
-  SessionBuffer sOut;             /* Output buffer */
-  int nCol = 0;                   /* Number of cols in current table */
-  u8 *abPK = 0;                   /* PK array for current table */
-  tdsqlite3_value **apVal = 0;      /* Space for values for UPDATE inversion */
-  SessionBuffer sPK = {0, 0, 0};  /* PK array for current table */
-
-  /* Initialize the output buffer */
-  memset(&sOut, 0, sizeof(SessionBuffer));
-
-  /* Zero the output variables in case an error occurs. */
-  if( ppInverted ){
-    *ppInverted = 0;
-    *pnInverted = 0;
-  }
-
-  while( 1 ){
-    u8 eType;
-
-    /* Test for EOF. */
-    if( (rc = sessionInputBuffer(pInput, 2)) ) goto finished_invert;
-    if( pInput->iNext>=pInput->nData ) break;
-    eType = pInput->aData[pInput->iNext];
-
-    switch( eType ){
-      case 'T': {
-        /* A 'table' record consists of:
-        **
-        **   * A constant 'T' character,
-        **   * Number of columns in said table (a varint),
-        **   * An array of nCol bytes (sPK),
-        **   * A nul-terminated table name.
-        */
-        int nByte;
-        int nVar;
-        pInput->iNext++;
-        if( (rc = sessionChangesetBufferTblhdr(pInput, &nByte)) ){
-          goto finished_invert;
-        }
-        nVar = sessionVarintGet(&pInput->aData[pInput->iNext], &nCol);
-        sPK.nBuf = 0;
-        sessionAppendBlob(&sPK, &pInput->aData[pInput->iNext+nVar], nCol, &rc);
-        sessionAppendByte(&sOut, eType, &rc);
-        sessionAppendBlob(&sOut, &pInput->aData[pInput->iNext], nByte, &rc);
-        if( rc ) goto finished_invert;
-
-        pInput->iNext += nByte;
-        tdsqlite3_free(apVal);
-        apVal = 0;
-        abPK = sPK.aBuf;
-        break;
-      }
-
-      case SQLITE_INSERT:
-      case SQLITE_DELETE: {
-        int nByte;
-        int bIndirect = pInput->aData[pInput->iNext+1];
-        int eType2 = (eType==SQLITE_DELETE ? SQLITE_INSERT : SQLITE_DELETE);
-        pInput->iNext += 2;
-        assert( rc==SQLITE_OK );
-        rc = sessionChangesetBufferRecord(pInput, nCol, &nByte);
-        sessionAppendByte(&sOut, eType2, &rc);
-        sessionAppendByte(&sOut, bIndirect, &rc);
-        sessionAppendBlob(&sOut, &pInput->aData[pInput->iNext], nByte, &rc);
-        pInput->iNext += nByte;
-        if( rc ) goto finished_invert;
-        break;
-      }
-
-      case SQLITE_UPDATE: {
-        int iCol;
-
-        if( 0==apVal ){
-          apVal = (tdsqlite3_value **)tdsqlite3_malloc64(sizeof(apVal[0])*nCol*2);
-          if( 0==apVal ){
-            rc = SQLITE_NOMEM;
-            goto finished_invert;
-          }
-          memset(apVal, 0, sizeof(apVal[0])*nCol*2);
-        }
-
-        /* Write the header for the new UPDATE change. Same as the original. */
-        sessionAppendByte(&sOut, eType, &rc);
-        sessionAppendByte(&sOut, pInput->aData[pInput->iNext+1], &rc);
-
-        /* Read the old.* and new.* records for the update change. */
-        pInput->iNext += 2;
-        rc = sessionReadRecord(pInput, nCol, 0, &apVal[0]);
-        if( rc==SQLITE_OK ){
-          rc = sessionReadRecord(pInput, nCol, 0, &apVal[nCol]);
-        }
-
-        /* Write the new old.* record. Consists of the PK columns from the
-        ** original old.* record, and the other values from the original
-        ** new.* record. */
-        for(iCol=0; iCol<nCol; iCol++){
-          tdsqlite3_value *pVal = apVal[iCol + (abPK[iCol] ? 0 : nCol)];
-          sessionAppendValue(&sOut, pVal, &rc);
-        }
-
-        /* Write the new new.* record. Consists of a copy of all values
-        ** from the original old.* record, except for the PK columns, which
-        ** are set to "undefined". */
-        for(iCol=0; iCol<nCol; iCol++){
-          tdsqlite3_value *pVal = (abPK[iCol] ? 0 : apVal[iCol]);
-          sessionAppendValue(&sOut, pVal, &rc);
-        }
-
-        for(iCol=0; iCol<nCol*2; iCol++){
-          tdsqlite3ValueFree(apVal[iCol]);
-        }
-        memset(apVal, 0, sizeof(apVal[0])*nCol*2);
-        if( rc!=SQLITE_OK ){
-          goto finished_invert;
-        }
-
-        break;
-      }
-
-      default:
-        rc = SQLITE_CORRUPT_BKPT;
-        goto finished_invert;
-    }
-
-    assert( rc==SQLITE_OK );
-    if( xOutput && sOut.nBuf>=sessions_strm_chunk_size ){
-      rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
-      sOut.nBuf = 0;
-      if( rc!=SQLITE_OK ) goto finished_invert;
-    }
-  }
-
-  assert( rc==SQLITE_OK );
-  if( pnInverted ){
-    *pnInverted = sOut.nBuf;
-    *ppInverted = sOut.aBuf;
-    sOut.aBuf = 0;
-  }else if( sOut.nBuf>0 ){
-    rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
-  }
-
- finished_invert:
-  tdsqlite3_free(sOut.aBuf);
-  tdsqlite3_free(apVal);
-  tdsqlite3_free(sPK.aBuf);
-  return rc;
-}
-
-
-/*
-** Invert a changeset object.
-*/
-SQLITE_API int tdsqlite3changeset_invert(
-  int nChangeset,                 /* Number of bytes in input */
-  const void *pChangeset,         /* Input changeset */
-  int *pnInverted,                /* OUT: Number of bytes in output changeset */
-  void **ppInverted               /* OUT: Inverse of pChangeset */
-){
-  SessionInput sInput;
-
-  /* Set up the input stream */
-  memset(&sInput, 0, sizeof(SessionInput));
-  sInput.nData = nChangeset;
-  sInput.aData = (u8*)pChangeset;
-
-  return sessionChangesetInvert(&sInput, 0, 0, pnInverted, ppInverted);
-}
-
-/*
-** Streaming version of tdsqlite3changeset_invert().
-*/
-SQLITE_API int tdsqlite3changeset_invert_strm(
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-){
-  SessionInput sInput;
-  int rc;
-
-  /* Set up the input stream */
-  memset(&sInput, 0, sizeof(SessionInput));
-  sInput.xInput = xInput;
-  sInput.pIn = pIn;
-
-  rc = sessionChangesetInvert(&sInput, xOutput, pOut, 0, 0);
-  tdsqlite3_free(sInput.buf.aBuf);
-  return rc;
-}
-
-typedef struct SessionApplyCtx SessionApplyCtx;
-struct SessionApplyCtx {
-  tdsqlite3 *db;
-  tdsqlite3_stmt *pDelete;          /* DELETE statement */
-  tdsqlite3_stmt *pUpdate;          /* UPDATE statement */
-  tdsqlite3_stmt *pInsert;          /* INSERT statement */
-  tdsqlite3_stmt *pSelect;          /* SELECT statement */
-  int nCol;                       /* Size of azCol[] and abPK[] arrays */
-  const char **azCol;             /* Array of column names */
-  u8 *abPK;                       /* Boolean array - true if column is in PK */
-  int bStat1;                     /* True if table is sqlite_stat1 */
-  int bDeferConstraints;          /* True to defer constraints */
-  SessionBuffer constraints;      /* Deferred constraints are stored here */
-  SessionBuffer rebase;           /* Rebase information (if any) here */
-  u8 bRebaseStarted;              /* If table header is already in rebase */
-  u8 bRebase;                     /* True to collect rebase information */
-};
-
-/*
-** Formulate a statement to DELETE a row from database db. Assuming a table
-** structure like this:
-**
-**     CREATE TABLE x(a, b, c, d, PRIMARY KEY(a, c));
-**
-** The DELETE statement looks like this:
-**
-**     DELETE FROM x WHERE a = :1 AND c = :3 AND (:5 OR b IS :2 AND d IS :4)
-**
-** Variable :5 (nCol+1) is a boolean. It should be set to 0 if we require
-** matching b and d values, or 1 otherwise. The second case comes up if the
-** conflict handler is invoked with NOTFOUND and returns CHANGESET_REPLACE.
-**
-** If successful, SQLITE_OK is returned and SessionApplyCtx.pDelete is left
-** pointing to the prepared version of the SQL statement.
-*/
-static int sessionDeleteRow(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zTab,               /* Table name */
-  SessionApplyCtx *p              /* Session changeset-apply context */
-){
-  int i;
-  const char *zSep = "";
-  int rc = SQLITE_OK;
-  SessionBuffer buf = {0, 0, 0};
-  int nPk = 0;
-
-  sessionAppendStr(&buf, "DELETE FROM ", &rc);
-  sessionAppendIdent(&buf, zTab, &rc);
-  sessionAppendStr(&buf, " WHERE ", &rc);
-
-  for(i=0; i<p->nCol; i++){
-    if( p->abPK[i] ){
-      nPk++;
-      sessionAppendStr(&buf, zSep, &rc);
-      sessionAppendIdent(&buf, p->azCol[i], &rc);
-      sessionAppendStr(&buf, " = ?", &rc);
-      sessionAppendInteger(&buf, i+1, &rc);
-      zSep = " AND ";
-    }
-  }
-
-  if( nPk<p->nCol ){
-    sessionAppendStr(&buf, " AND (?", &rc);
-    sessionAppendInteger(&buf, p->nCol+1, &rc);
-    sessionAppendStr(&buf, " OR ", &rc);
-
-    zSep = "";
-    for(i=0; i<p->nCol; i++){
-      if( !p->abPK[i] ){
-        sessionAppendStr(&buf, zSep, &rc);
-        sessionAppendIdent(&buf, p->azCol[i], &rc);
-        sessionAppendStr(&buf, " IS ?", &rc);
-        sessionAppendInteger(&buf, i+1, &rc);
-        zSep = "AND ";
-      }
-    }
-    sessionAppendStr(&buf, ")", &rc);
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_prepare_v2(db, (char *)buf.aBuf, buf.nBuf, &p->pDelete, 0);
-  }
-  tdsqlite3_free(buf.aBuf);
-
-  return rc;
-}
-
-/*
-** Formulate and prepare a statement to UPDATE a row from database db. 
-** Assuming a table structure like this:
-**
-**     CREATE TABLE x(a, b, c, d, PRIMARY KEY(a, c));
-**
-** The UPDATE statement looks like this:
-**
-**     UPDATE x SET
-**     a = CASE WHEN ?2  THEN ?3  ELSE a END,
-**     b = CASE WHEN ?5  THEN ?6  ELSE b END,
-**     c = CASE WHEN ?8  THEN ?9  ELSE c END,
-**     d = CASE WHEN ?11 THEN ?12 ELSE d END
-**     WHERE a = ?1 AND c = ?7 AND (?13 OR 
-**       (?5==0 OR b IS ?4) AND (?11==0 OR d IS ?10) AND
-**     )
-**
-** For each column in the table, there are three variables to bind:
-**
-**     ?(i*3+1)    The old.* value of the column, if any.
-**     ?(i*3+2)    A boolean flag indicating that the value is being modified.
-**     ?(i*3+3)    The new.* value of the column, if any.
-**
-** Also, a boolean flag that, if set to true, causes the statement to update
-** a row even if the non-PK values do not match. This is required if the
-** conflict-handler is invoked with CHANGESET_DATA and returns
-** CHANGESET_REPLACE. This is variable "?(nCol*3+1)".
-**
-** If successful, SQLITE_OK is returned and SessionApplyCtx.pUpdate is left
-** pointing to the prepared version of the SQL statement.
-*/
-static int sessionUpdateRow(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zTab,               /* Table name */
-  SessionApplyCtx *p              /* Session changeset-apply context */
-){
-  int rc = SQLITE_OK;
-  int i;
-  const char *zSep = "";
-  SessionBuffer buf = {0, 0, 0};
-
-  /* Append "UPDATE tbl SET " */
-  sessionAppendStr(&buf, "UPDATE ", &rc);
-  sessionAppendIdent(&buf, zTab, &rc);
-  sessionAppendStr(&buf, " SET ", &rc);
-
-  /* Append the assignments */
-  for(i=0; i<p->nCol; i++){
-    sessionAppendStr(&buf, zSep, &rc);
-    sessionAppendIdent(&buf, p->azCol[i], &rc);
-    sessionAppendStr(&buf, " = CASE WHEN ?", &rc);
-    sessionAppendInteger(&buf, i*3+2, &rc);
-    sessionAppendStr(&buf, " THEN ?", &rc);
-    sessionAppendInteger(&buf, i*3+3, &rc);
-    sessionAppendStr(&buf, " ELSE ", &rc);
-    sessionAppendIdent(&buf, p->azCol[i], &rc);
-    sessionAppendStr(&buf, " END", &rc);
-    zSep = ", ";
-  }
-
-  /* Append the PK part of the WHERE clause */
-  sessionAppendStr(&buf, " WHERE ", &rc);
-  for(i=0; i<p->nCol; i++){
-    if( p->abPK[i] ){
-      sessionAppendIdent(&buf, p->azCol[i], &rc);
-      sessionAppendStr(&buf, " = ?", &rc);
-      sessionAppendInteger(&buf, i*3+1, &rc);
-      sessionAppendStr(&buf, " AND ", &rc);
-    }
-  }
-
-  /* Append the non-PK part of the WHERE clause */
-  sessionAppendStr(&buf, " (?", &rc);
-  sessionAppendInteger(&buf, p->nCol*3+1, &rc);
-  sessionAppendStr(&buf, " OR 1", &rc);
-  for(i=0; i<p->nCol; i++){
-    if( !p->abPK[i] ){
-      sessionAppendStr(&buf, " AND (?", &rc);
-      sessionAppendInteger(&buf, i*3+2, &rc);
-      sessionAppendStr(&buf, "=0 OR ", &rc);
-      sessionAppendIdent(&buf, p->azCol[i], &rc);
-      sessionAppendStr(&buf, " IS ?", &rc);
-      sessionAppendInteger(&buf, i*3+1, &rc);
-      sessionAppendStr(&buf, ")", &rc);
-    }
-  }
-  sessionAppendStr(&buf, ")", &rc);
-
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_prepare_v2(db, (char *)buf.aBuf, buf.nBuf, &p->pUpdate, 0);
-  }
-  tdsqlite3_free(buf.aBuf);
-
-  return rc;
-}
-
-
-/*
-** Formulate and prepare an SQL statement to query table zTab by primary
-** key. Assuming the following table structure:
-**
-**     CREATE TABLE x(a, b, c, d, PRIMARY KEY(a, c));
-**
-** The SELECT statement looks like this:
-**
-**     SELECT * FROM x WHERE a = ?1 AND c = ?3
-**
-** If successful, SQLITE_OK is returned and SessionApplyCtx.pSelect is left
-** pointing to the prepared version of the SQL statement.
-*/
-static int sessionSelectRow(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zTab,               /* Table name */
-  SessionApplyCtx *p              /* Session changeset-apply context */
-){
-  return sessionSelectStmt(
-      db, "main", zTab, p->nCol, p->azCol, p->abPK, &p->pSelect);
-}
-
-/*
-** Formulate and prepare an INSERT statement to add a record to table zTab.
-** For example:
-**
-**     INSERT INTO main."zTab" VALUES(?1, ?2, ?3 ...);
-**
-** If successful, SQLITE_OK is returned and SessionApplyCtx.pInsert is left
-** pointing to the prepared version of the SQL statement.
-*/
-static int sessionInsertRow(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zTab,               /* Table name */
-  SessionApplyCtx *p              /* Session changeset-apply context */
-){
-  int rc = SQLITE_OK;
-  int i;
-  SessionBuffer buf = {0, 0, 0};
-
-  sessionAppendStr(&buf, "INSERT INTO main.", &rc);
-  sessionAppendIdent(&buf, zTab, &rc);
-  sessionAppendStr(&buf, "(", &rc);
-  for(i=0; i<p->nCol; i++){
-    if( i!=0 ) sessionAppendStr(&buf, ", ", &rc);
-    sessionAppendIdent(&buf, p->azCol[i], &rc);
-  }
-
-  sessionAppendStr(&buf, ") VALUES(?", &rc);
-  for(i=1; i<p->nCol; i++){
-    sessionAppendStr(&buf, ", ?", &rc);
-  }
-  sessionAppendStr(&buf, ")", &rc);
-
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_prepare_v2(db, (char *)buf.aBuf, buf.nBuf, &p->pInsert, 0);
-  }
-  tdsqlite3_free(buf.aBuf);
-  return rc;
-}
-
-static int sessionPrepare(tdsqlite3 *db, tdsqlite3_stmt **pp, const char *zSql){
-  return tdsqlite3_prepare_v2(db, zSql, -1, pp, 0);
-}
-
-/*
-** Prepare statements for applying changes to the sqlite_stat1 table.
-** These are similar to those created by sessionSelectRow(),
-** sessionInsertRow(), sessionUpdateRow() and sessionDeleteRow() for 
-** other tables.
-*/
-static int sessionStat1Sql(tdsqlite3 *db, SessionApplyCtx *p){
-  int rc = sessionSelectRow(db, "sqlite_stat1", p);
-  if( rc==SQLITE_OK ){
-    rc = sessionPrepare(db, &p->pInsert,
-        "INSERT INTO main.sqlite_stat1 VALUES(?1, "
-        "CASE WHEN length(?2)=0 AND typeof(?2)='blob' THEN NULL ELSE ?2 END, "
-        "?3)"
-    );
-  }
-  if( rc==SQLITE_OK ){
-    rc = sessionPrepare(db, &p->pUpdate,
-        "UPDATE main.sqlite_stat1 SET "
-        "tbl = CASE WHEN ?2 THEN ?3 ELSE tbl END, "
-        "idx = CASE WHEN ?5 THEN ?6 ELSE idx END, "
-        "stat = CASE WHEN ?8 THEN ?9 ELSE stat END  "
-        "WHERE tbl=?1 AND idx IS "
-        "CASE WHEN length(?4)=0 AND typeof(?4)='blob' THEN NULL ELSE ?4 END "
-        "AND (?10 OR ?8=0 OR stat IS ?7)"
-    );
-  }
-  if( rc==SQLITE_OK ){
-    rc = sessionPrepare(db, &p->pDelete,
-        "DELETE FROM main.sqlite_stat1 WHERE tbl=?1 AND idx IS "
-        "CASE WHEN length(?2)=0 AND typeof(?2)='blob' THEN NULL ELSE ?2 END "
-        "AND (?4 OR stat IS ?3)"
-    );
-  }
-  return rc;
-}
-
-/*
-** A wrapper around tdsqlite3_bind_value() that detects an extra problem. 
-** See comments in the body of this function for details.
-*/
-static int sessionBindValue(
-  tdsqlite3_stmt *pStmt,            /* Statement to bind value to */
-  int i,                          /* Parameter number to bind to */
-  tdsqlite3_value *pVal             /* Value to bind */
-){
-  int eType = tdsqlite3_value_type(pVal);
-  /* COVERAGE: The (pVal->z==0) branch is never true using current versions
-  ** of SQLite. If a malloc fails in an tdsqlite3_value_xxx() function, either
-  ** the (pVal->z) variable remains as it was or the type of the value is
-  ** set to SQLITE_NULL.  */
-  if( (eType==SQLITE_TEXT || eType==SQLITE_BLOB) && pVal->z==0 ){
-    /* This condition occurs when an earlier OOM in a call to
-    ** tdsqlite3_value_text() or tdsqlite3_value_blob() (perhaps from within
-    ** a conflict-handler) has zeroed the pVal->z pointer. Return NOMEM. */
-    return SQLITE_NOMEM;
-  }
-  return tdsqlite3_bind_value(pStmt, i, pVal);
-}
-
-/*
-** Iterator pIter must point to an SQLITE_INSERT entry. This function 
-** transfers new.* values from the current iterator entry to statement
-** pStmt. The table being inserted into has nCol columns.
-**
-** New.* value $i from the iterator is bound to variable ($i+1) of 
-** statement pStmt. If parameter abPK is NULL, all values from 0 to (nCol-1)
-** are transfered to the statement. Otherwise, if abPK is not NULL, it points
-** to an array nCol elements in size. In this case only those values for 
-** which abPK[$i] is true are read from the iterator and bound to the 
-** statement.
-**
-** An SQLite error code is returned if an error occurs. Otherwise, SQLITE_OK.
-*/
-static int sessionBindRow(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator to read values from */
-  int(*xValue)(tdsqlite3_changeset_iter *, int, tdsqlite3_value **),
-  int nCol,                       /* Number of columns */
-  u8 *abPK,                       /* If not NULL, bind only if true */
-  tdsqlite3_stmt *pStmt             /* Bind values to this statement */
-){
-  int i;
-  int rc = SQLITE_OK;
-
-  /* Neither tdsqlite3changeset_old or tdsqlite3changeset_new can fail if the
-  ** argument iterator points to a suitable entry. Make sure that xValue 
-  ** is one of these to guarantee that it is safe to ignore the return 
-  ** in the code below. */
-  assert( xValue==tdsqlite3changeset_old || xValue==tdsqlite3changeset_new );
-
-  for(i=0; rc==SQLITE_OK && i<nCol; i++){
-    if( !abPK || abPK[i] ){
-      tdsqlite3_value *pVal;
-      (void)xValue(pIter, i, &pVal);
-      if( pVal==0 ){
-        /* The value in the changeset was "undefined". This indicates a
-        ** corrupt changeset blob.  */
-        rc = SQLITE_CORRUPT_BKPT;
-      }else{
-        rc = sessionBindValue(pStmt, i+1, pVal);
-      }
-    }
-  }
-  return rc;
-}
-
-/*
-** SQL statement pSelect is as generated by the sessionSelectRow() function.
-** This function binds the primary key values from the change that changeset
-** iterator pIter points to to the SELECT and attempts to seek to the table
-** entry. If a row is found, the SELECT statement left pointing at the row 
-** and SQLITE_ROW is returned. Otherwise, if no row is found and no error
-** has occured, the statement is reset and SQLITE_OK is returned. If an
-** error occurs, the statement is reset and an SQLite error code is returned.
-**
-** If this function returns SQLITE_ROW, the caller must eventually reset() 
-** statement pSelect. If any other value is returned, the statement does
-** not require a reset().
-**
-** If the iterator currently points to an INSERT record, bind values from the
-** new.* record to the SELECT statement. Or, if it points to a DELETE or
-** UPDATE, bind values from the old.* record. 
-*/
-static int sessionSeekToRow(
-  tdsqlite3 *db,                    /* Database handle */
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  u8 *abPK,                       /* Primary key flags array */
-  tdsqlite3_stmt *pSelect           /* SELECT statement from sessionSelectRow() */
-){
-  int rc;                         /* Return code */
-  int nCol;                       /* Number of columns in table */
-  int op;                         /* Changset operation (SQLITE_UPDATE etc.) */
-  const char *zDummy;             /* Unused */
-
-  tdsqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
-  rc = sessionBindRow(pIter, 
-      op==SQLITE_INSERT ? tdsqlite3changeset_new : tdsqlite3changeset_old,
-      nCol, abPK, pSelect
-  );
-
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_step(pSelect);
-    if( rc!=SQLITE_ROW ) rc = tdsqlite3_reset(pSelect);
-  }
-
-  return rc;
-}
-
-/*
-** This function is called from within tdsqlite3changeset_apply_v2() when
-** a conflict is encountered and resolved using conflict resolution
-** mode eType (either SQLITE_CHANGESET_OMIT or SQLITE_CHANGESET_REPLACE)..
-** It adds a conflict resolution record to the buffer in 
-** SessionApplyCtx.rebase, which will eventually be returned to the caller
-** of apply_v2() as the "rebase" buffer.
-**
-** Return SQLITE_OK if successful, or an SQLite error code otherwise.
-*/
-static int sessionRebaseAdd(
-  SessionApplyCtx *p,             /* Apply context */
-  int eType,                      /* Conflict resolution (OMIT or REPLACE) */
-  tdsqlite3_changeset_iter *pIter   /* Iterator pointing at current change */
-){
-  int rc = SQLITE_OK;
-  if( p->bRebase ){
-    int i;
-    int eOp = pIter->op;
-    if( p->bRebaseStarted==0 ){
-      /* Append a table-header to the rebase buffer */
-      const char *zTab = pIter->zTab;
-      sessionAppendByte(&p->rebase, 'T', &rc);
-      sessionAppendVarint(&p->rebase, p->nCol, &rc);
-      sessionAppendBlob(&p->rebase, p->abPK, p->nCol, &rc);
-      sessionAppendBlob(&p->rebase, (u8*)zTab, (int)strlen(zTab)+1, &rc);
-      p->bRebaseStarted = 1;
-    }
-
-    assert( eType==SQLITE_CHANGESET_REPLACE||eType==SQLITE_CHANGESET_OMIT );
-    assert( eOp==SQLITE_DELETE || eOp==SQLITE_INSERT || eOp==SQLITE_UPDATE );
-
-    sessionAppendByte(&p->rebase, 
-        (eOp==SQLITE_DELETE ? SQLITE_DELETE : SQLITE_INSERT), &rc
-        );
-    sessionAppendByte(&p->rebase, (eType==SQLITE_CHANGESET_REPLACE), &rc);
-    for(i=0; i<p->nCol; i++){
-      tdsqlite3_value *pVal = 0;
-      if( eOp==SQLITE_DELETE || (eOp==SQLITE_UPDATE && p->abPK[i]) ){
-        tdsqlite3changeset_old(pIter, i, &pVal);
-      }else{
-        tdsqlite3changeset_new(pIter, i, &pVal);
-      }
-      sessionAppendValue(&p->rebase, pVal, &rc);
-    }
-  }
-  return rc;
-}
-
-/*
-** Invoke the conflict handler for the change that the changeset iterator
-** currently points to.
-**
-** Argument eType must be either CHANGESET_DATA or CHANGESET_CONFLICT.
-** If argument pbReplace is NULL, then the type of conflict handler invoked
-** depends solely on eType, as follows:
-**
-**    eType value                 Value passed to xConflict
-**    -------------------------------------------------
-**    CHANGESET_DATA              CHANGESET_NOTFOUND
-**    CHANGESET_CONFLICT          CHANGESET_CONSTRAINT
-**
-** Or, if pbReplace is not NULL, then an attempt is made to find an existing
-** record with the same primary key as the record about to be deleted, updated
-** or inserted. If such a record can be found, it is available to the conflict
-** handler as the "conflicting" record. In this case the type of conflict
-** handler invoked is as follows:
-**
-**    eType value         PK Record found?   Value passed to xConflict
-**    ----------------------------------------------------------------
-**    CHANGESET_DATA      Yes                CHANGESET_DATA
-**    CHANGESET_DATA      No                 CHANGESET_NOTFOUND
-**    CHANGESET_CONFLICT  Yes                CHANGESET_CONFLICT
-**    CHANGESET_CONFLICT  No                 CHANGESET_CONSTRAINT
-**
-** If pbReplace is not NULL, and a record with a matching PK is found, and
-** the conflict handler function returns SQLITE_CHANGESET_REPLACE, *pbReplace
-** is set to non-zero before returning SQLITE_OK.
-**
-** If the conflict handler returns SQLITE_CHANGESET_ABORT, SQLITE_ABORT is
-** returned. Or, if the conflict handler returns an invalid value, 
-** SQLITE_MISUSE. If the conflict handler returns SQLITE_CHANGESET_OMIT,
-** this function returns SQLITE_OK.
-*/
-static int sessionConflictHandler(
-  int eType,                      /* Either CHANGESET_DATA or CONFLICT */
-  SessionApplyCtx *p,             /* changeset_apply() context */
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int(*xConflict)(void *, int, tdsqlite3_changeset_iter*),
-  void *pCtx,                     /* First argument for conflict handler */
-  int *pbReplace                  /* OUT: Set to true if PK row is found */
-){
-  int res = 0;                    /* Value returned by conflict handler */
-  int rc;
-  int nCol;
-  int op;
-  const char *zDummy;
-
-  tdsqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
-
-  assert( eType==SQLITE_CHANGESET_CONFLICT || eType==SQLITE_CHANGESET_DATA );
-  assert( SQLITE_CHANGESET_CONFLICT+1==SQLITE_CHANGESET_CONSTRAINT );
-  assert( SQLITE_CHANGESET_DATA+1==SQLITE_CHANGESET_NOTFOUND );
-
-  /* Bind the new.* PRIMARY KEY values to the SELECT statement. */
-  if( pbReplace ){
-    rc = sessionSeekToRow(p->db, pIter, p->abPK, p->pSelect);
-  }else{
-    rc = SQLITE_OK;
-  }
-
-  if( rc==SQLITE_ROW ){
-    /* There exists another row with the new.* primary key. */
-    pIter->pConflict = p->pSelect;
-    res = xConflict(pCtx, eType, pIter);
-    pIter->pConflict = 0;
-    rc = tdsqlite3_reset(p->pSelect);
-  }else if( rc==SQLITE_OK ){
-    if( p->bDeferConstraints && eType==SQLITE_CHANGESET_CONFLICT ){
-      /* Instead of invoking the conflict handler, append the change blob
-      ** to the SessionApplyCtx.constraints buffer. */
-      u8 *aBlob = &pIter->in.aData[pIter->in.iCurrent];
-      int nBlob = pIter->in.iNext - pIter->in.iCurrent;
-      sessionAppendBlob(&p->constraints, aBlob, nBlob, &rc);
-      return SQLITE_OK;
-    }else{
-      /* No other row with the new.* primary key. */
-      res = xConflict(pCtx, eType+1, pIter);
-      if( res==SQLITE_CHANGESET_REPLACE ) rc = SQLITE_MISUSE;
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    switch( res ){
-      case SQLITE_CHANGESET_REPLACE:
-        assert( pbReplace );
-        *pbReplace = 1;
-        break;
-
-      case SQLITE_CHANGESET_OMIT:
-        break;
-
-      case SQLITE_CHANGESET_ABORT:
-        rc = SQLITE_ABORT;
-        break;
-
-      default:
-        rc = SQLITE_MISUSE;
-        break;
-    }
-    if( rc==SQLITE_OK ){
-      rc = sessionRebaseAdd(p, res, pIter);
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Attempt to apply the change that the iterator passed as the first argument
-** currently points to to the database. If a conflict is encountered, invoke
-** the conflict handler callback.
-**
-** If argument pbRetry is NULL, then ignore any CHANGESET_DATA conflict. If
-** one is encountered, update or delete the row with the matching primary key
-** instead. Or, if pbRetry is not NULL and a CHANGESET_DATA conflict occurs,
-** invoke the conflict handler. If it returns CHANGESET_REPLACE, set *pbRetry
-** to true before returning. In this case the caller will invoke this function
-** again, this time with pbRetry set to NULL.
-**
-** If argument pbReplace is NULL and a CHANGESET_CONFLICT conflict is 
-** encountered invoke the conflict handler with CHANGESET_CONSTRAINT instead.
-** Or, if pbReplace is not NULL, invoke it with CHANGESET_CONFLICT. If such
-** an invocation returns SQLITE_CHANGESET_REPLACE, set *pbReplace to true
-** before retrying. In this case the caller attempts to remove the conflicting
-** row before invoking this function again, this time with pbReplace set 
-** to NULL.
-**
-** If any conflict handler returns SQLITE_CHANGESET_ABORT, this function
-** returns SQLITE_ABORT. Otherwise, if no error occurs, SQLITE_OK is 
-** returned.
-*/
-static int sessionApplyOneOp(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  SessionApplyCtx *p,             /* changeset_apply() context */
-  int(*xConflict)(void *, int, tdsqlite3_changeset_iter *),
-  void *pCtx,                     /* First argument for the conflict handler */
-  int *pbReplace,                 /* OUT: True to remove PK row and retry */
-  int *pbRetry                    /* OUT: True to retry. */
-){
-  const char *zDummy;
-  int op;
-  int nCol;
-  int rc = SQLITE_OK;
-
-  assert( p->pDelete && p->pUpdate && p->pInsert && p->pSelect );
-  assert( p->azCol && p->abPK );
-  assert( !pbReplace || *pbReplace==0 );
-
-  tdsqlite3changeset_op(pIter, &zDummy, &nCol, &op, 0);
-
-  if( op==SQLITE_DELETE ){
-
-    /* Bind values to the DELETE statement. If conflict handling is required,
-    ** bind values for all columns and set bound variable (nCol+1) to true.
-    ** Or, if conflict handling is not required, bind just the PK column
-    ** values and, if it exists, set (nCol+1) to false. Conflict handling
-    ** is not required if:
-    **
-    **   * this is a patchset, or
-    **   * (pbRetry==0), or
-    **   * all columns of the table are PK columns (in this case there is
-    **     no (nCol+1) variable to bind to).
-    */
-    u8 *abPK = (pIter->bPatchset ? p->abPK : 0);
-    rc = sessionBindRow(pIter, tdsqlite3changeset_old, nCol, abPK, p->pDelete);
-    if( rc==SQLITE_OK && tdsqlite3_bind_parameter_count(p->pDelete)>nCol ){
-      rc = tdsqlite3_bind_int(p->pDelete, nCol+1, (pbRetry==0 || abPK));
-    }
-    if( rc!=SQLITE_OK ) return rc;
-
-    tdsqlite3_step(p->pDelete);
-    rc = tdsqlite3_reset(p->pDelete);
-    if( rc==SQLITE_OK && tdsqlite3_changes(p->db)==0 ){
-      rc = sessionConflictHandler(
-          SQLITE_CHANGESET_DATA, p, pIter, xConflict, pCtx, pbRetry
-      );
-    }else if( (rc&0xff)==SQLITE_CONSTRAINT ){
-      rc = sessionConflictHandler(
-          SQLITE_CHANGESET_CONFLICT, p, pIter, xConflict, pCtx, 0
-      );
-    }
-
-  }else if( op==SQLITE_UPDATE ){
-    int i;
-
-    /* Bind values to the UPDATE statement. */
-    for(i=0; rc==SQLITE_OK && i<nCol; i++){
-      tdsqlite3_value *pOld = sessionChangesetOld(pIter, i);
-      tdsqlite3_value *pNew = sessionChangesetNew(pIter, i);
-
-      tdsqlite3_bind_int(p->pUpdate, i*3+2, !!pNew);
-      if( pOld ){
-        rc = sessionBindValue(p->pUpdate, i*3+1, pOld);
-      }
-      if( rc==SQLITE_OK && pNew ){
-        rc = sessionBindValue(p->pUpdate, i*3+3, pNew);
-      }
-    }
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int(p->pUpdate, nCol*3+1, pbRetry==0 || pIter->bPatchset);
-    }
-    if( rc!=SQLITE_OK ) return rc;
-
-    /* Attempt the UPDATE. In the case of a NOTFOUND or DATA conflict,
-    ** the result will be SQLITE_OK with 0 rows modified. */
-    tdsqlite3_step(p->pUpdate);
-    rc = tdsqlite3_reset(p->pUpdate);
-
-    if( rc==SQLITE_OK && tdsqlite3_changes(p->db)==0 ){
-      /* A NOTFOUND or DATA error. Search the table to see if it contains
-      ** a row with a matching primary key. If so, this is a DATA conflict.
-      ** Otherwise, if there is no primary key match, it is a NOTFOUND. */
-
-      rc = sessionConflictHandler(
-          SQLITE_CHANGESET_DATA, p, pIter, xConflict, pCtx, pbRetry
-      );
-
-    }else if( (rc&0xff)==SQLITE_CONSTRAINT ){
-      /* This is always a CONSTRAINT conflict. */
-      rc = sessionConflictHandler(
-          SQLITE_CHANGESET_CONFLICT, p, pIter, xConflict, pCtx, 0
-      );
-    }
-
-  }else{
-    assert( op==SQLITE_INSERT );
-    if( p->bStat1 ){
-      /* Check if there is a conflicting row. For sqlite_stat1, this needs
-      ** to be done using a SELECT, as there is no PRIMARY KEY in the 
-      ** database schema to throw an exception if a duplicate is inserted.  */
-      rc = sessionSeekToRow(p->db, pIter, p->abPK, p->pSelect);
-      if( rc==SQLITE_ROW ){
-        rc = SQLITE_CONSTRAINT;
-        tdsqlite3_reset(p->pSelect);
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      rc = sessionBindRow(pIter, tdsqlite3changeset_new, nCol, 0, p->pInsert);
-      if( rc!=SQLITE_OK ) return rc;
-
-      tdsqlite3_step(p->pInsert);
-      rc = tdsqlite3_reset(p->pInsert);
-    }
-
-    if( (rc&0xff)==SQLITE_CONSTRAINT ){
-      rc = sessionConflictHandler(
-          SQLITE_CHANGESET_CONFLICT, p, pIter, xConflict, pCtx, pbReplace
-      );
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Attempt to apply the change that the iterator passed as the first argument
-** currently points to to the database. If a conflict is encountered, invoke
-** the conflict handler callback.
-**
-** The difference between this function and sessionApplyOne() is that this
-** function handles the case where the conflict-handler is invoked and 
-** returns SQLITE_CHANGESET_REPLACE - indicating that the change should be
-** retried in some manner.
-*/
-static int sessionApplyOneWithRetry(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator to read change from */
-  SessionApplyCtx *pApply,        /* Apply context */
-  int(*xConflict)(void*, int, tdsqlite3_changeset_iter*),
-  void *pCtx                      /* First argument passed to xConflict */
-){
-  int bReplace = 0;
-  int bRetry = 0;
-  int rc;
-
-  rc = sessionApplyOneOp(pIter, pApply, xConflict, pCtx, &bReplace, &bRetry);
-  if( rc==SQLITE_OK ){
-    /* If the bRetry flag is set, the change has not been applied due to an
-    ** SQLITE_CHANGESET_DATA problem (i.e. this is an UPDATE or DELETE and
-    ** a row with the correct PK is present in the db, but one or more other
-    ** fields do not contain the expected values) and the conflict handler 
-    ** returned SQLITE_CHANGESET_REPLACE. In this case retry the operation,
-    ** but pass NULL as the final argument so that sessionApplyOneOp() ignores
-    ** the SQLITE_CHANGESET_DATA problem.  */
-    if( bRetry ){
-      assert( pIter->op==SQLITE_UPDATE || pIter->op==SQLITE_DELETE );
-      rc = sessionApplyOneOp(pIter, pApply, xConflict, pCtx, 0, 0);
-    }
-
-    /* If the bReplace flag is set, the change is an INSERT that has not
-    ** been performed because the database already contains a row with the
-    ** specified primary key and the conflict handler returned
-    ** SQLITE_CHANGESET_REPLACE. In this case remove the conflicting row
-    ** before reattempting the INSERT.  */
-    else if( bReplace ){
-      assert( pIter->op==SQLITE_INSERT );
-      rc = tdsqlite3_exec(db, "SAVEPOINT replace_op", 0, 0, 0);
-      if( rc==SQLITE_OK ){
-        rc = sessionBindRow(pIter, 
-            tdsqlite3changeset_new, pApply->nCol, pApply->abPK, pApply->pDelete);
-        tdsqlite3_bind_int(pApply->pDelete, pApply->nCol+1, 1);
-      }
-      if( rc==SQLITE_OK ){
-        tdsqlite3_step(pApply->pDelete);
-        rc = tdsqlite3_reset(pApply->pDelete);
-      }
-      if( rc==SQLITE_OK ){
-        rc = sessionApplyOneOp(pIter, pApply, xConflict, pCtx, 0, 0);
-      }
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3_exec(db, "RELEASE replace_op", 0, 0, 0);
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Retry the changes accumulated in the pApply->constraints buffer.
-*/
-static int sessionRetryConstraints(
-  tdsqlite3 *db, 
-  int bPatchset,
-  const char *zTab,
-  SessionApplyCtx *pApply,
-  int(*xConflict)(void*, int, tdsqlite3_changeset_iter*),
-  void *pCtx                      /* First argument passed to xConflict */
-){
-  int rc = SQLITE_OK;
-
-  while( pApply->constraints.nBuf ){
-    tdsqlite3_changeset_iter *pIter2 = 0;
-    SessionBuffer cons = pApply->constraints;
-    memset(&pApply->constraints, 0, sizeof(SessionBuffer));
-
-    rc = sessionChangesetStart(&pIter2, 0, 0, cons.nBuf, cons.aBuf, 0);
-    if( rc==SQLITE_OK ){
-      size_t nByte = 2*pApply->nCol*sizeof(tdsqlite3_value*);
-      int rc2;
-      pIter2->bPatchset = bPatchset;
-      pIter2->zTab = (char*)zTab;
-      pIter2->nCol = pApply->nCol;
-      pIter2->abPK = pApply->abPK;
-      sessionBufferGrow(&pIter2->tblhdr, nByte, &rc);
-      pIter2->apValue = (tdsqlite3_value**)pIter2->tblhdr.aBuf;
-      if( rc==SQLITE_OK ) memset(pIter2->apValue, 0, nByte);
-
-      while( rc==SQLITE_OK && SQLITE_ROW==tdsqlite3changeset_next(pIter2) ){
-        rc = sessionApplyOneWithRetry(db, pIter2, pApply, xConflict, pCtx);
-      }
-
-      rc2 = tdsqlite3changeset_finalize(pIter2);
-      if( rc==SQLITE_OK ) rc = rc2;
-    }
-    assert( pApply->bDeferConstraints || pApply->constraints.nBuf==0 );
-
-    tdsqlite3_free(cons.aBuf);
-    if( rc!=SQLITE_OK ) break;
-    if( pApply->constraints.nBuf>=cons.nBuf ){
-      /* No progress was made on the last round. */
-      pApply->bDeferConstraints = 0;
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Argument pIter is a changeset iterator that has been initialized, but
-** not yet passed to tdsqlite3changeset_next(). This function applies the 
-** changeset to the main database attached to handle "db". The supplied
-** conflict handler callback is invoked to resolve any conflicts encountered
-** while applying the change.
-*/
-static int sessionChangesetApply(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  tdsqlite3_changeset_iter *pIter,  /* Changeset to apply */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of fifth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase, /* OUT: Rebase information */
-  int flags                       /* SESSION_APPLY_XXX flags */
-){
-  int schemaMismatch = 0;
-  int rc = SQLITE_OK;             /* Return code */
-  const char *zTab = 0;           /* Name of current table */
-  int nTab = 0;                   /* Result of tdsqlite3Strlen30(zTab) */
-  SessionApplyCtx sApply;         /* changeset_apply() context object */
-  int bPatchset;
-
-  assert( xConflict!=0 );
-
-  pIter->in.bNoDiscard = 1;
-  memset(&sApply, 0, sizeof(sApply));
-  sApply.bRebase = (ppRebase && pnRebase);
-  tdsqlite3_mutex_enter(tdsqlite3_db_mutex(db));
-  if( (flags & SQLITE_CHANGESETAPPLY_NOSAVEPOINT)==0 ){
-    rc = tdsqlite3_exec(db, "SAVEPOINT changeset_apply", 0, 0, 0);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_exec(db, "PRAGMA defer_foreign_keys = 1", 0, 0, 0);
-  }
-  while( rc==SQLITE_OK && SQLITE_ROW==tdsqlite3changeset_next(pIter) ){
-    int nCol;
-    int op;
-    const char *zNew;
-    
-    tdsqlite3changeset_op(pIter, &zNew, &nCol, &op, 0);
-
-    if( zTab==0 || tdsqlite3_strnicmp(zNew, zTab, nTab+1) ){
-      u8 *abPK;
-
-      rc = sessionRetryConstraints(
-          db, pIter->bPatchset, zTab, &sApply, xConflict, pCtx
-      );
-      if( rc!=SQLITE_OK ) break;
-
-      tdsqlite3_free((char*)sApply.azCol);  /* cast works around VC++ bug */
-      tdsqlite3_finalize(sApply.pDelete);
-      tdsqlite3_finalize(sApply.pUpdate); 
-      tdsqlite3_finalize(sApply.pInsert);
-      tdsqlite3_finalize(sApply.pSelect);
-      sApply.db = db;
-      sApply.pDelete = 0;
-      sApply.pUpdate = 0;
-      sApply.pInsert = 0;
-      sApply.pSelect = 0;
-      sApply.nCol = 0;
-      sApply.azCol = 0;
-      sApply.abPK = 0;
-      sApply.bStat1 = 0;
-      sApply.bDeferConstraints = 1;
-      sApply.bRebaseStarted = 0;
-      memset(&sApply.constraints, 0, sizeof(SessionBuffer));
-
-      /* If an xFilter() callback was specified, invoke it now. If the 
-      ** xFilter callback returns zero, skip this table. If it returns
-      ** non-zero, proceed. */
-      schemaMismatch = (xFilter && (0==xFilter(pCtx, zNew)));
-      if( schemaMismatch ){
-        zTab = tdsqlite3_mprintf("%s", zNew);
-        if( zTab==0 ){
-          rc = SQLITE_NOMEM;
-          break;
-        }
-        nTab = (int)strlen(zTab);
-        sApply.azCol = (const char **)zTab;
-      }else{
-        int nMinCol = 0;
-        int i;
-
-        tdsqlite3changeset_pk(pIter, &abPK, 0);
-        rc = sessionTableInfo(
-            db, "main", zNew, &sApply.nCol, &zTab, &sApply.azCol, &sApply.abPK
-        );
-        if( rc!=SQLITE_OK ) break;
-        for(i=0; i<sApply.nCol; i++){
-          if( sApply.abPK[i] ) nMinCol = i+1;
-        }
-  
-        if( sApply.nCol==0 ){
-          schemaMismatch = 1;
-          tdsqlite3_log(SQLITE_SCHEMA, 
-              "tdsqlite3changeset_apply(): no such table: %s", zTab
-          );
-        }
-        else if( sApply.nCol<nCol ){
-          schemaMismatch = 1;
-          tdsqlite3_log(SQLITE_SCHEMA, 
-              "tdsqlite3changeset_apply(): table %s has %d columns, "
-              "expected %d or more", 
-              zTab, sApply.nCol, nCol
-          );
-        }
-        else if( nCol<nMinCol || memcmp(sApply.abPK, abPK, nCol)!=0 ){
-          schemaMismatch = 1;
-          tdsqlite3_log(SQLITE_SCHEMA, "tdsqlite3changeset_apply(): "
-              "primary key mismatch for table %s", zTab
-          );
-        }
-        else{
-          sApply.nCol = nCol;
-          if( 0==tdsqlite3_stricmp(zTab, "sqlite_stat1") ){
-            if( (rc = sessionStat1Sql(db, &sApply) ) ){
-              break;
-            }
-            sApply.bStat1 = 1;
-          }else{
-            if((rc = sessionSelectRow(db, zTab, &sApply))
-                || (rc = sessionUpdateRow(db, zTab, &sApply))
-                || (rc = sessionDeleteRow(db, zTab, &sApply))
-                || (rc = sessionInsertRow(db, zTab, &sApply))
-              ){
-              break;
-            }
-            sApply.bStat1 = 0;
-          }
-        }
-        nTab = tdsqlite3Strlen30(zTab);
-      }
-    }
-
-    /* If there is a schema mismatch on the current table, proceed to the
-    ** next change. A log message has already been issued. */
-    if( schemaMismatch ) continue;
-
-    rc = sessionApplyOneWithRetry(db, pIter, &sApply, xConflict, pCtx);
-  }
-
-  bPatchset = pIter->bPatchset;
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3changeset_finalize(pIter);
-  }else{
-    tdsqlite3changeset_finalize(pIter);
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = sessionRetryConstraints(db, bPatchset, zTab, &sApply, xConflict, pCtx);
-  }
-
-  if( rc==SQLITE_OK ){
-    int nFk, notUsed;
-    tdsqlite3_db_status(db, SQLITE_DBSTATUS_DEFERRED_FKS, &nFk, &notUsed, 0);
-    if( nFk!=0 ){
-      int res = SQLITE_CHANGESET_ABORT;
-      tdsqlite3_changeset_iter sIter;
-      memset(&sIter, 0, sizeof(sIter));
-      sIter.nCol = nFk;
-      res = xConflict(pCtx, SQLITE_CHANGESET_FOREIGN_KEY, &sIter);
-      if( res!=SQLITE_CHANGESET_OMIT ){
-        rc = SQLITE_CONSTRAINT;
-      }
-    }
-  }
-  tdsqlite3_exec(db, "PRAGMA defer_foreign_keys = 0", 0, 0, 0);
-
-  if( (flags & SQLITE_CHANGESETAPPLY_NOSAVEPOINT)==0 ){
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3_exec(db, "RELEASE changeset_apply", 0, 0, 0);
-    }else{
-      tdsqlite3_exec(db, "ROLLBACK TO changeset_apply", 0, 0, 0);
-      tdsqlite3_exec(db, "RELEASE changeset_apply", 0, 0, 0);
-    }
-  }
-
-  assert( sApply.bRebase || sApply.rebase.nBuf==0 );
-  if( rc==SQLITE_OK && bPatchset==0 && sApply.bRebase ){
-    *ppRebase = (void*)sApply.rebase.aBuf;
-    *pnRebase = sApply.rebase.nBuf;
-    sApply.rebase.aBuf = 0;
-  }
-  tdsqlite3_finalize(sApply.pInsert);
-  tdsqlite3_finalize(sApply.pDelete);
-  tdsqlite3_finalize(sApply.pUpdate);
-  tdsqlite3_finalize(sApply.pSelect);
-  tdsqlite3_free((char*)sApply.azCol);  /* cast works around VC++ bug */
-  tdsqlite3_free((char*)sApply.constraints.aBuf);
-  tdsqlite3_free((char*)sApply.rebase.aBuf);
-  tdsqlite3_mutex_leave(tdsqlite3_db_mutex(db));
-  return rc;
-}
-
-/*
-** Apply the changeset passed via pChangeset/nChangeset to the main 
-** database attached to handle "db".
-*/
-SQLITE_API int tdsqlite3changeset_apply_v2(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int nChangeset,                 /* Size of changeset in bytes */
-  void *pChangeset,               /* Changeset blob */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase,
-  int flags
-){
-  tdsqlite3_changeset_iter *pIter;  /* Iterator to skip through changeset */  
-  int bInverse = !!(flags & SQLITE_CHANGESETAPPLY_INVERT);
-  int rc = sessionChangesetStart(&pIter, 0, 0, nChangeset, pChangeset,bInverse);
-  if( rc==SQLITE_OK ){
-    rc = sessionChangesetApply(
-        db, pIter, xFilter, xConflict, pCtx, ppRebase, pnRebase, flags
-    );
-  }
-  return rc;
-}
-
-/*
-** Apply the changeset passed via pChangeset/nChangeset to the main database
-** attached to handle "db". Invoke the supplied conflict handler callback
-** to resolve any conflicts encountered while applying the change.
-*/
-SQLITE_API int tdsqlite3changeset_apply(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int nChangeset,                 /* Size of changeset in bytes */
-  void *pChangeset,               /* Changeset blob */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of fifth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx                      /* First argument passed to xConflict */
-){
-  return tdsqlite3changeset_apply_v2(
-      db, nChangeset, pChangeset, xFilter, xConflict, pCtx, 0, 0, 0
-  );
-}
-
-/*
-** Apply the changeset passed via xInput/pIn to the main database
-** attached to handle "db". Invoke the supplied conflict handler callback
-** to resolve any conflicts encountered while applying the change.
-*/
-SQLITE_API int tdsqlite3changeset_apply_v2_strm(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
-  void *pIn,                                          /* First arg for xInput */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase,
-  int flags
-){
-  tdsqlite3_changeset_iter *pIter;  /* Iterator to skip through changeset */  
-  int bInverse = !!(flags & SQLITE_CHANGESETAPPLY_INVERT);
-  int rc = sessionChangesetStart(&pIter, xInput, pIn, 0, 0, bInverse);
-  if( rc==SQLITE_OK ){
-    rc = sessionChangesetApply(
-        db, pIter, xFilter, xConflict, pCtx, ppRebase, pnRebase, flags
-    );
-  }
-  return rc;
-}
-SQLITE_API int tdsqlite3changeset_apply_strm(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
-  void *pIn,                                          /* First arg for xInput */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx                      /* First argument passed to xConflict */
-){
-  return tdsqlite3changeset_apply_v2_strm(
-      db, xInput, pIn, xFilter, xConflict, pCtx, 0, 0, 0
-  );
-}
-
-/*
-** tdsqlite3_changegroup handle.
-*/
-struct tdsqlite3_changegroup {
-  int rc;                         /* Error code */
-  int bPatch;                     /* True to accumulate patchsets */
-  SessionTable *pList;            /* List of tables in current patch */
-};
-
-/*
-** This function is called to merge two changes to the same row together as
-** part of an tdsqlite3changeset_concat() operation. A new change object is
-** allocated and a pointer to it stored in *ppNew.
-*/
-static int sessionChangeMerge(
-  SessionTable *pTab,             /* Table structure */
-  int bRebase,                    /* True for a rebase hash-table */
-  int bPatchset,                  /* True for patchsets */
-  SessionChange *pExist,          /* Existing change */
-  int op2,                        /* Second change operation */
-  int bIndirect,                  /* True if second change is indirect */
-  u8 *aRec,                       /* Second change record */
-  int nRec,                       /* Number of bytes in aRec */
-  SessionChange **ppNew           /* OUT: Merged change */
-){
-  SessionChange *pNew = 0;
-  int rc = SQLITE_OK;
-
-  if( !pExist ){
-    pNew = (SessionChange *)tdsqlite3_malloc64(sizeof(SessionChange) + nRec);
-    if( !pNew ){
-      return SQLITE_NOMEM;
-    }
-    memset(pNew, 0, sizeof(SessionChange));
-    pNew->op = op2;
-    pNew->bIndirect = bIndirect;
-    pNew->aRecord = (u8*)&pNew[1];
-    if( bIndirect==0 || bRebase==0 ){
-      pNew->nRecord = nRec;
-      memcpy(pNew->aRecord, aRec, nRec);
-    }else{
-      int i;
-      u8 *pIn = aRec;
-      u8 *pOut = pNew->aRecord;
-      for(i=0; i<pTab->nCol; i++){
-        int nIn = sessionSerialLen(pIn);
-        if( *pIn==0 ){
-          *pOut++ = 0;
-        }else if( pTab->abPK[i]==0 ){
-          *pOut++ = 0xFF;
-        }else{
-          memcpy(pOut, pIn, nIn);
-          pOut += nIn;
-        }
-        pIn += nIn;
-      }
-      pNew->nRecord = pOut - pNew->aRecord;
-    }
-  }else if( bRebase ){
-    if( pExist->op==SQLITE_DELETE && pExist->bIndirect ){
-      *ppNew = pExist;
-    }else{
-      tdsqlite3_int64 nByte = nRec + pExist->nRecord + sizeof(SessionChange);
-      pNew = (SessionChange*)tdsqlite3_malloc64(nByte);
-      if( pNew==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        int i;
-        u8 *a1 = pExist->aRecord;
-        u8 *a2 = aRec;
-        u8 *pOut;
-
-        memset(pNew, 0, nByte);
-        pNew->bIndirect = bIndirect || pExist->bIndirect;
-        pNew->op = op2;
-        pOut = pNew->aRecord = (u8*)&pNew[1];
-
-        for(i=0; i<pTab->nCol; i++){
-          int n1 = sessionSerialLen(a1);
-          int n2 = sessionSerialLen(a2);
-          if( *a1==0xFF || (pTab->abPK[i]==0 && bIndirect) ){
-            *pOut++ = 0xFF;
-          }else if( *a2==0 ){
-            memcpy(pOut, a1, n1);
-            pOut += n1;
-          }else{
-            memcpy(pOut, a2, n2);
-            pOut += n2;
-          }
-          a1 += n1;
-          a2 += n2;
-        }
-        pNew->nRecord = pOut - pNew->aRecord;
-      }
-      tdsqlite3_free(pExist);
-    }
-  }else{
-    int op1 = pExist->op;
-
-    /* 
-    **   op1=INSERT, op2=INSERT      ->      Unsupported. Discard op2.
-    **   op1=INSERT, op2=UPDATE      ->      INSERT.
-    **   op1=INSERT, op2=DELETE      ->      (none)
-    **
-    **   op1=UPDATE, op2=INSERT      ->      Unsupported. Discard op2.
-    **   op1=UPDATE, op2=UPDATE      ->      UPDATE.
-    **   op1=UPDATE, op2=DELETE      ->      DELETE.
-    **
-    **   op1=DELETE, op2=INSERT      ->      UPDATE.
-    **   op1=DELETE, op2=UPDATE      ->      Unsupported. Discard op2.
-    **   op1=DELETE, op2=DELETE      ->      Unsupported. Discard op2.
-    */   
-    if( (op1==SQLITE_INSERT && op2==SQLITE_INSERT)
-     || (op1==SQLITE_UPDATE && op2==SQLITE_INSERT)
-     || (op1==SQLITE_DELETE && op2==SQLITE_UPDATE)
-     || (op1==SQLITE_DELETE && op2==SQLITE_DELETE)
-    ){
-      pNew = pExist;
-    }else if( op1==SQLITE_INSERT && op2==SQLITE_DELETE ){
-      tdsqlite3_free(pExist);
-      assert( pNew==0 );
-    }else{
-      u8 *aExist = pExist->aRecord;
-      tdsqlite3_int64 nByte;
-      u8 *aCsr;
-
-      /* Allocate a new SessionChange object. Ensure that the aRecord[]
-      ** buffer of the new object is large enough to hold any record that
-      ** may be generated by combining the input records.  */
-      nByte = sizeof(SessionChange) + pExist->nRecord + nRec;
-      pNew = (SessionChange *)tdsqlite3_malloc64(nByte);
-      if( !pNew ){
-        tdsqlite3_free(pExist);
-        return SQLITE_NOMEM;
-      }
-      memset(pNew, 0, sizeof(SessionChange));
-      pNew->bIndirect = (bIndirect && pExist->bIndirect);
-      aCsr = pNew->aRecord = (u8 *)&pNew[1];
-
-      if( op1==SQLITE_INSERT ){             /* INSERT + UPDATE */
-        u8 *a1 = aRec;
-        assert( op2==SQLITE_UPDATE );
-        pNew->op = SQLITE_INSERT;
-        if( bPatchset==0 ) sessionSkipRecord(&a1, pTab->nCol);
-        sessionMergeRecord(&aCsr, pTab->nCol, aExist, a1);
-      }else if( op1==SQLITE_DELETE ){       /* DELETE + INSERT */
-        assert( op2==SQLITE_INSERT );
-        pNew->op = SQLITE_UPDATE;
-        if( bPatchset ){
-          memcpy(aCsr, aRec, nRec);
-          aCsr += nRec;
-        }else{
-          if( 0==sessionMergeUpdate(&aCsr, pTab, bPatchset, aExist, 0,aRec,0) ){
-            tdsqlite3_free(pNew);
-            pNew = 0;
-          }
-        }
-      }else if( op2==SQLITE_UPDATE ){       /* UPDATE + UPDATE */
-        u8 *a1 = aExist;
-        u8 *a2 = aRec;
-        assert( op1==SQLITE_UPDATE );
-        if( bPatchset==0 ){
-          sessionSkipRecord(&a1, pTab->nCol);
-          sessionSkipRecord(&a2, pTab->nCol);
-        }
-        pNew->op = SQLITE_UPDATE;
-        if( 0==sessionMergeUpdate(&aCsr, pTab, bPatchset, aRec, aExist,a1,a2) ){
-          tdsqlite3_free(pNew);
-          pNew = 0;
-        }
-      }else{                                /* UPDATE + DELETE */
-        assert( op1==SQLITE_UPDATE && op2==SQLITE_DELETE );
-        pNew->op = SQLITE_DELETE;
-        if( bPatchset ){
-          memcpy(aCsr, aRec, nRec);
-          aCsr += nRec;
-        }else{
-          sessionMergeRecord(&aCsr, pTab->nCol, aRec, aExist);
-        }
-      }
-
-      if( pNew ){
-        pNew->nRecord = (int)(aCsr - pNew->aRecord);
-      }
-      tdsqlite3_free(pExist);
-    }
-  }
-
-  *ppNew = pNew;
-  return rc;
-}
-
-/*
-** Add all changes in the changeset traversed by the iterator passed as
-** the first argument to the changegroup hash tables.
-*/
-static int sessionChangesetToHash(
-  tdsqlite3_changeset_iter *pIter,   /* Iterator to read from */
-  tdsqlite3_changegroup *pGrp,       /* Changegroup object to add changeset to */
-  int bRebase                      /* True if hash table is for rebasing */
-){
-  u8 *aRec;
-  int nRec;
-  int rc = SQLITE_OK;
-  SessionTable *pTab = 0;
-
-  while( SQLITE_ROW==sessionChangesetNext(pIter, &aRec, &nRec, 0) ){
-    const char *zNew;
-    int nCol;
-    int op;
-    int iHash;
-    int bIndirect;
-    SessionChange *pChange;
-    SessionChange *pExist = 0;
-    SessionChange **pp;
-
-    if( pGrp->pList==0 ){
-      pGrp->bPatch = pIter->bPatchset;
-    }else if( pIter->bPatchset!=pGrp->bPatch ){
-      rc = SQLITE_ERROR;
-      break;
-    }
-
-    tdsqlite3changeset_op(pIter, &zNew, &nCol, &op, &bIndirect);
-    if( !pTab || tdsqlite3_stricmp(zNew, pTab->zName) ){
-      /* Search the list for a matching table */
-      int nNew = (int)strlen(zNew);
-      u8 *abPK;
-
-      tdsqlite3changeset_pk(pIter, &abPK, 0);
-      for(pTab = pGrp->pList; pTab; pTab=pTab->pNext){
-        if( 0==tdsqlite3_strnicmp(pTab->zName, zNew, nNew+1) ) break;
-      }
-      if( !pTab ){
-        SessionTable **ppTab;
-
-        pTab = tdsqlite3_malloc64(sizeof(SessionTable) + nCol + nNew+1);
-        if( !pTab ){
-          rc = SQLITE_NOMEM;
-          break;
-        }
-        memset(pTab, 0, sizeof(SessionTable));
-        pTab->nCol = nCol;
-        pTab->abPK = (u8*)&pTab[1];
-        memcpy(pTab->abPK, abPK, nCol);
-        pTab->zName = (char*)&pTab->abPK[nCol];
-        memcpy(pTab->zName, zNew, nNew+1);
-
-        /* The new object must be linked on to the end of the list, not
-        ** simply added to the start of it. This is to ensure that the
-        ** tables within the output of tdsqlite3changegroup_output() are in 
-        ** the right order.  */
-        for(ppTab=&pGrp->pList; *ppTab; ppTab=&(*ppTab)->pNext);
-        *ppTab = pTab;
-      }else if( pTab->nCol!=nCol || memcmp(pTab->abPK, abPK, nCol) ){
-        rc = SQLITE_SCHEMA;
-        break;
-      }
-    }
-
-    if( sessionGrowHash(pIter->bPatchset, pTab) ){
-      rc = SQLITE_NOMEM;
-      break;
-    }
-    iHash = sessionChangeHash(
-        pTab, (pIter->bPatchset && op==SQLITE_DELETE), aRec, pTab->nChange
-    );
-
-    /* Search for existing entry. If found, remove it from the hash table. 
-    ** Code below may link it back in.
-    */
-    for(pp=&pTab->apChange[iHash]; *pp; pp=&(*pp)->pNext){
-      int bPkOnly1 = 0;
-      int bPkOnly2 = 0;
-      if( pIter->bPatchset ){
-        bPkOnly1 = (*pp)->op==SQLITE_DELETE;
-        bPkOnly2 = op==SQLITE_DELETE;
-      }
-      if( sessionChangeEqual(pTab, bPkOnly1, (*pp)->aRecord, bPkOnly2, aRec) ){
-        pExist = *pp;
-        *pp = (*pp)->pNext;
-        pTab->nEntry--;
-        break;
-      }
-    }
-
-    rc = sessionChangeMerge(pTab, bRebase, 
-        pIter->bPatchset, pExist, op, bIndirect, aRec, nRec, &pChange
-    );
-    if( rc ) break;
-    if( pChange ){
-      pChange->pNext = pTab->apChange[iHash];
-      pTab->apChange[iHash] = pChange;
-      pTab->nEntry++;
-    }
-  }
-
-  if( rc==SQLITE_OK ) rc = pIter->rc;
-  return rc;
-}
-
-/*
-** Serialize a changeset (or patchset) based on all changesets (or patchsets)
-** added to the changegroup object passed as the first argument.
-**
-** If xOutput is not NULL, then the changeset/patchset is returned to the
-** user via one or more calls to xOutput, as with the other streaming
-** interfaces. 
-**
-** Or, if xOutput is NULL, then (*ppOut) is populated with a pointer to a
-** buffer containing the output changeset before this function returns. In
-** this case (*pnOut) is set to the size of the output buffer in bytes. It
-** is the responsibility of the caller to free the output buffer using
-** tdsqlite3_free() when it is no longer required.
-**
-** If successful, SQLITE_OK is returned. Or, if an error occurs, an SQLite
-** error code. If an error occurs and xOutput is NULL, (*ppOut) and (*pnOut)
-** are both set to 0 before returning.
-*/
-static int sessionChangegroupOutput(
-  tdsqlite3_changegroup *pGrp,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut,
-  int *pnOut,
-  void **ppOut
-){
-  int rc = SQLITE_OK;
-  SessionBuffer buf = {0, 0, 0};
-  SessionTable *pTab;
-  assert( xOutput==0 || (ppOut==0 && pnOut==0) );
-
-  /* Create the serialized output changeset based on the contents of the
-  ** hash tables attached to the SessionTable objects in list p->pList. 
-  */
-  for(pTab=pGrp->pList; rc==SQLITE_OK && pTab; pTab=pTab->pNext){
-    int i;
-    if( pTab->nEntry==0 ) continue;
-
-    sessionAppendTableHdr(&buf, pGrp->bPatch, pTab, &rc);
-    for(i=0; i<pTab->nChange; i++){
-      SessionChange *p;
-      for(p=pTab->apChange[i]; p; p=p->pNext){
-        sessionAppendByte(&buf, p->op, &rc);
-        sessionAppendByte(&buf, p->bIndirect, &rc);
-        sessionAppendBlob(&buf, p->aRecord, p->nRecord, &rc);
-        if( rc==SQLITE_OK && xOutput && buf.nBuf>=sessions_strm_chunk_size ){
-          rc = xOutput(pOut, buf.aBuf, buf.nBuf);
-          buf.nBuf = 0;
-        }
-      }
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    if( xOutput ){
-      if( buf.nBuf>0 ) rc = xOutput(pOut, buf.aBuf, buf.nBuf);
-    }else{
-      *ppOut = buf.aBuf;
-      *pnOut = buf.nBuf;
-      buf.aBuf = 0;
-    }
-  }
-  tdsqlite3_free(buf.aBuf);
-
-  return rc;
-}
-
-/*
-** Allocate a new, empty, tdsqlite3_changegroup.
-*/
-SQLITE_API int tdsqlite3changegroup_new(tdsqlite3_changegroup **pp){
-  int rc = SQLITE_OK;             /* Return code */
-  tdsqlite3_changegroup *p;         /* New object */
-  p = (tdsqlite3_changegroup*)tdsqlite3_malloc(sizeof(tdsqlite3_changegroup));
-  if( p==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    memset(p, 0, sizeof(tdsqlite3_changegroup));
-  }
-  *pp = p;
-  return rc;
-}
-
-/*
-** Add the changeset currently stored in buffer pData, size nData bytes,
-** to changeset-group p.
-*/
-SQLITE_API int tdsqlite3changegroup_add(tdsqlite3_changegroup *pGrp, int nData, void *pData){
-  tdsqlite3_changeset_iter *pIter;  /* Iterator opened on pData/nData */
-  int rc;                         /* Return code */
-
-  rc = tdsqlite3changeset_start(&pIter, nData, pData);
-  if( rc==SQLITE_OK ){
-    rc = sessionChangesetToHash(pIter, pGrp, 0);
-  }
-  tdsqlite3changeset_finalize(pIter);
-  return rc;
-}
-
-/*
-** Obtain a buffer containing a changeset representing the concatenation
-** of all changesets added to the group so far.
-*/
-SQLITE_API int tdsqlite3changegroup_output(
-    tdsqlite3_changegroup *pGrp,
-    int *pnData,
-    void **ppData
-){
-  return sessionChangegroupOutput(pGrp, 0, 0, pnData, ppData);
-}
-
-/*
-** Streaming versions of changegroup_add().
-*/
-SQLITE_API int tdsqlite3changegroup_add_strm(
-  tdsqlite3_changegroup *pGrp,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn
-){
-  tdsqlite3_changeset_iter *pIter;  /* Iterator opened on pData/nData */
-  int rc;                         /* Return code */
-
-  rc = tdsqlite3changeset_start_strm(&pIter, xInput, pIn);
-  if( rc==SQLITE_OK ){
-    rc = sessionChangesetToHash(pIter, pGrp, 0);
-  }
-  tdsqlite3changeset_finalize(pIter);
-  return rc;
-}
-
-/*
-** Streaming versions of changegroup_output().
-*/
-SQLITE_API int tdsqlite3changegroup_output_strm(
-  tdsqlite3_changegroup *pGrp,
-  int (*xOutput)(void *pOut, const void *pData, int nData), 
-  void *pOut
-){
-  return sessionChangegroupOutput(pGrp, xOutput, pOut, 0, 0);
-}
-
-/*
-** Delete a changegroup object.
-*/
-SQLITE_API void tdsqlite3changegroup_delete(tdsqlite3_changegroup *pGrp){
-  if( pGrp ){
-    sessionDeleteTable(pGrp->pList);
-    tdsqlite3_free(pGrp);
-  }
-}
-
-/* 
-** Combine two changesets together.
-*/
-SQLITE_API int tdsqlite3changeset_concat(
-  int nLeft,                      /* Number of bytes in lhs input */
-  void *pLeft,                    /* Lhs input changeset */
-  int nRight                      /* Number of bytes in rhs input */,
-  void *pRight,                   /* Rhs input changeset */
-  int *pnOut,                     /* OUT: Number of bytes in output changeset */
-  void **ppOut                    /* OUT: changeset (left <concat> right) */
-){
-  tdsqlite3_changegroup *pGrp;
-  int rc;
-
-  rc = tdsqlite3changegroup_new(&pGrp);
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3changegroup_add(pGrp, nLeft, pLeft);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3changegroup_add(pGrp, nRight, pRight);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3changegroup_output(pGrp, pnOut, ppOut);
-  }
-  tdsqlite3changegroup_delete(pGrp);
-
-  return rc;
-}
-
-/*
-** Streaming version of tdsqlite3changeset_concat().
-*/
-SQLITE_API int tdsqlite3changeset_concat_strm(
-  int (*xInputA)(void *pIn, void *pData, int *pnData),
-  void *pInA,
-  int (*xInputB)(void *pIn, void *pData, int *pnData),
-  void *pInB,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-){
-  tdsqlite3_changegroup *pGrp;
-  int rc;
-
-  rc = tdsqlite3changegroup_new(&pGrp);
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3changegroup_add_strm(pGrp, xInputA, pInA);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3changegroup_add_strm(pGrp, xInputB, pInB);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3changegroup_output_strm(pGrp, xOutput, pOut);
-  }
-  tdsqlite3changegroup_delete(pGrp);
-
-  return rc;
-}
-
-/*
-** Changeset rebaser handle.
-*/
-struct tdsqlite3_rebaser {
-  tdsqlite3_changegroup grp;        /* Hash table */
-};
-
-/*
-** Buffers a1 and a2 must both contain a sessions module record nCol
-** fields in size. This function appends an nCol sessions module 
-** record to buffer pBuf that is a copy of a1, except that for
-** each field that is undefined in a1[], swap in the field from a2[].
-*/
-static void sessionAppendRecordMerge(
-  SessionBuffer *pBuf,            /* Buffer to append to */
-  int nCol,                       /* Number of columns in each record */
-  u8 *a1, int n1,                 /* Record 1 */
-  u8 *a2, int n2,                 /* Record 2 */
-  int *pRc                        /* IN/OUT: error code */
-){
-  sessionBufferGrow(pBuf, n1+n2, pRc);
-  if( *pRc==SQLITE_OK ){
-    int i;
-    u8 *pOut = &pBuf->aBuf[pBuf->nBuf];
-    for(i=0; i<nCol; i++){
-      int nn1 = sessionSerialLen(a1);
-      int nn2 = sessionSerialLen(a2);
-      if( *a1==0 || *a1==0xFF ){
-        memcpy(pOut, a2, nn2);
-        pOut += nn2;
-      }else{
-        memcpy(pOut, a1, nn1);
-        pOut += nn1;
-      }
-      a1 += nn1;
-      a2 += nn2;
-    }
-
-    pBuf->nBuf = pOut-pBuf->aBuf;
-    assert( pBuf->nBuf<=pBuf->nAlloc );
-  }
-}
-
-/*
-** This function is called when rebasing a local UPDATE change against one 
-** or more remote UPDATE changes. The aRec/nRec buffer contains the current
-** old.* and new.* records for the change. The rebase buffer (a single
-** record) is in aChange/nChange. The rebased change is appended to buffer
-** pBuf.
-**
-** Rebasing the UPDATE involves: 
-**
-**   * Removing any changes to fields for which the corresponding field
-**     in the rebase buffer is set to "replaced" (type 0xFF). If this
-**     means the UPDATE change updates no fields, nothing is appended
-**     to the output buffer.
-**
-**   * For each field modified by the local change for which the 
-**     corresponding field in the rebase buffer is not "undefined" (0x00)
-**     or "replaced" (0xFF), the old.* value is replaced by the value
-**     in the rebase buffer.
-*/
-static void sessionAppendPartialUpdate(
-  SessionBuffer *pBuf,            /* Append record here */
-  tdsqlite3_changeset_iter *pIter,  /* Iterator pointed at local change */
-  u8 *aRec, int nRec,             /* Local change */
-  u8 *aChange, int nChange,       /* Record to rebase against */
-  int *pRc                        /* IN/OUT: Return Code */
-){
-  sessionBufferGrow(pBuf, 2+nRec+nChange, pRc);
-  if( *pRc==SQLITE_OK ){
-    int bData = 0;
-    u8 *pOut = &pBuf->aBuf[pBuf->nBuf];
-    int i;
-    u8 *a1 = aRec;
-    u8 *a2 = aChange;
-
-    *pOut++ = SQLITE_UPDATE;
-    *pOut++ = pIter->bIndirect;
-    for(i=0; i<pIter->nCol; i++){
-      int n1 = sessionSerialLen(a1);
-      int n2 = sessionSerialLen(a2);
-      if( pIter->abPK[i] || a2[0]==0 ){
-        if( !pIter->abPK[i] ) bData = 1;
-        memcpy(pOut, a1, n1);
-        pOut += n1;
-      }else if( a2[0]!=0xFF ){
-        bData = 1;
-        memcpy(pOut, a2, n2);
-        pOut += n2;
-      }else{
-        *pOut++ = '\0';
-      }
-      a1 += n1;
-      a2 += n2;
-    }
-    if( bData ){
-      a2 = aChange;
-      for(i=0; i<pIter->nCol; i++){
-        int n1 = sessionSerialLen(a1);
-        int n2 = sessionSerialLen(a2);
-        if( pIter->abPK[i] || a2[0]!=0xFF ){
-          memcpy(pOut, a1, n1);
-          pOut += n1;
-        }else{
-          *pOut++ = '\0';
-        }
-        a1 += n1;
-        a2 += n2;
-      }
-      pBuf->nBuf = (pOut - pBuf->aBuf);
-    }
-  }
-}
-
-/*
-** pIter is configured to iterate through a changeset. This function rebases 
-** that changeset according to the current configuration of the rebaser 
-** object passed as the first argument. If no error occurs and argument xOutput
-** is not NULL, then the changeset is returned to the caller by invoking
-** xOutput zero or more times and SQLITE_OK returned. Or, if xOutput is NULL,
-** then (*ppOut) is set to point to a buffer containing the rebased changeset
-** before this function returns. In this case (*pnOut) is set to the size of
-** the buffer in bytes.  It is the responsibility of the caller to eventually
-** free the (*ppOut) buffer using tdsqlite3_free(). 
-**
-** If an error occurs, an SQLite error code is returned. If ppOut and
-** pnOut are not NULL, then the two output parameters are set to 0 before
-** returning.
-*/
-static int sessionRebase(
-  tdsqlite3_rebaser *p,             /* Rebaser hash table */
-  tdsqlite3_changeset_iter *pIter,  /* Input data */
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut,                     /* Context for xOutput callback */
-  int *pnOut,                     /* OUT: Number of bytes in output changeset */
-  void **ppOut                    /* OUT: Inverse of pChangeset */
-){
-  int rc = SQLITE_OK;
-  u8 *aRec = 0;
-  int nRec = 0;
-  int bNew = 0;
-  SessionTable *pTab = 0;
-  SessionBuffer sOut = {0,0,0};
-
-  while( SQLITE_ROW==sessionChangesetNext(pIter, &aRec, &nRec, &bNew) ){
-    SessionChange *pChange = 0;
-    int bDone = 0;
-
-    if( bNew ){
-      const char *zTab = pIter->zTab;
-      for(pTab=p->grp.pList; pTab; pTab=pTab->pNext){
-        if( 0==tdsqlite3_stricmp(pTab->zName, zTab) ) break;
-      }
-      bNew = 0;
-
-      /* A patchset may not be rebased */
-      if( pIter->bPatchset ){
-        rc = SQLITE_ERROR;
-      }
-
-      /* Append a table header to the output for this new table */
-      sessionAppendByte(&sOut, pIter->bPatchset ? 'P' : 'T', &rc);
-      sessionAppendVarint(&sOut, pIter->nCol, &rc);
-      sessionAppendBlob(&sOut, pIter->abPK, pIter->nCol, &rc);
-      sessionAppendBlob(&sOut,(u8*)pIter->zTab,(int)strlen(pIter->zTab)+1,&rc);
-    }
-
-    if( pTab && rc==SQLITE_OK ){
-      int iHash = sessionChangeHash(pTab, 0, aRec, pTab->nChange);
-
-      for(pChange=pTab->apChange[iHash]; pChange; pChange=pChange->pNext){
-        if( sessionChangeEqual(pTab, 0, aRec, 0, pChange->aRecord) ){
-          break;
-        }
-      }
-    }
-
-    if( pChange ){
-      assert( pChange->op==SQLITE_DELETE || pChange->op==SQLITE_INSERT );
-      switch( pIter->op ){
-        case SQLITE_INSERT:
-          if( pChange->op==SQLITE_INSERT ){
-            bDone = 1;
-            if( pChange->bIndirect==0 ){
-              sessionAppendByte(&sOut, SQLITE_UPDATE, &rc);
-              sessionAppendByte(&sOut, pIter->bIndirect, &rc);
-              sessionAppendBlob(&sOut, pChange->aRecord, pChange->nRecord, &rc);
-              sessionAppendBlob(&sOut, aRec, nRec, &rc);
-            }
-          }
-          break;
-
-        case SQLITE_UPDATE:
-          bDone = 1;
-          if( pChange->op==SQLITE_DELETE ){
-            if( pChange->bIndirect==0 ){
-              u8 *pCsr = aRec;
-              sessionSkipRecord(&pCsr, pIter->nCol);
-              sessionAppendByte(&sOut, SQLITE_INSERT, &rc);
-              sessionAppendByte(&sOut, pIter->bIndirect, &rc);
-              sessionAppendRecordMerge(&sOut, pIter->nCol,
-                  pCsr, nRec-(pCsr-aRec), 
-                  pChange->aRecord, pChange->nRecord, &rc
-              );
-            }
-          }else{
-            sessionAppendPartialUpdate(&sOut, pIter,
-                aRec, nRec, pChange->aRecord, pChange->nRecord, &rc
-            );
-          }
-          break;
-
-        default:
-          assert( pIter->op==SQLITE_DELETE );
-          bDone = 1;
-          if( pChange->op==SQLITE_INSERT ){
-            sessionAppendByte(&sOut, SQLITE_DELETE, &rc);
-            sessionAppendByte(&sOut, pIter->bIndirect, &rc);
-            sessionAppendRecordMerge(&sOut, pIter->nCol,
-                pChange->aRecord, pChange->nRecord, aRec, nRec, &rc
-            );
-          }
-          break;
-      }
-    }
-
-    if( bDone==0 ){
-      sessionAppendByte(&sOut, pIter->op, &rc);
-      sessionAppendByte(&sOut, pIter->bIndirect, &rc);
-      sessionAppendBlob(&sOut, aRec, nRec, &rc);
-    }
-    if( rc==SQLITE_OK && xOutput && sOut.nBuf>sessions_strm_chunk_size ){
-      rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
-      sOut.nBuf = 0;
-    }
-    if( rc ) break;
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_free(sOut.aBuf);
-    memset(&sOut, 0, sizeof(sOut));
-  }
-
-  if( rc==SQLITE_OK ){
-    if( xOutput ){
-      if( sOut.nBuf>0 ){
-        rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
-      }
-    }else{
-      *ppOut = (void*)sOut.aBuf;
-      *pnOut = sOut.nBuf;
-      sOut.aBuf = 0;
-    }
-  }
-  tdsqlite3_free(sOut.aBuf);
-  return rc;
-}
-
-/* 
-** Create a new rebaser object.
-*/
-SQLITE_API int tdsqlite3rebaser_create(tdsqlite3_rebaser **ppNew){
-  int rc = SQLITE_OK;
-  tdsqlite3_rebaser *pNew;
-
-  pNew = tdsqlite3_malloc(sizeof(tdsqlite3_rebaser));
-  if( pNew==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    memset(pNew, 0, sizeof(tdsqlite3_rebaser));
-  }
-  *ppNew = pNew;
-  return rc;
-}
-
-/* 
-** Call this one or more times to configure a rebaser.
-*/
-SQLITE_API int tdsqlite3rebaser_configure(
-  tdsqlite3_rebaser *p, 
-  int nRebase, const void *pRebase
-){
-  tdsqlite3_changeset_iter *pIter = 0;   /* Iterator opened on pData/nData */
-  int rc;                              /* Return code */
-  rc = tdsqlite3changeset_start(&pIter, nRebase, (void*)pRebase);
-  if( rc==SQLITE_OK ){
-    rc = sessionChangesetToHash(pIter, &p->grp, 1);
-  }
-  tdsqlite3changeset_finalize(pIter);
-  return rc;
-}
-
-/* 
-** Rebase a changeset according to current rebaser configuration 
-*/
-SQLITE_API int tdsqlite3rebaser_rebase(
-  tdsqlite3_rebaser *p,
-  int nIn, const void *pIn, 
-  int *pnOut, void **ppOut 
-){
-  tdsqlite3_changeset_iter *pIter = 0;   /* Iterator to skip through input */  
-  int rc = tdsqlite3changeset_start(&pIter, nIn, (void*)pIn);
-
-  if( rc==SQLITE_OK ){
-    rc = sessionRebase(p, pIter, 0, 0, pnOut, ppOut);
-    tdsqlite3changeset_finalize(pIter);
-  }
-
-  return rc;
-}
-
-/* 
-** Rebase a changeset according to current rebaser configuration 
-*/
-SQLITE_API int tdsqlite3rebaser_rebase_strm(
-  tdsqlite3_rebaser *p,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-){
-  tdsqlite3_changeset_iter *pIter = 0;   /* Iterator to skip through input */  
-  int rc = tdsqlite3changeset_start_strm(&pIter, xInput, pIn);
-
-  if( rc==SQLITE_OK ){
-    rc = sessionRebase(p, pIter, xOutput, pOut, 0, 0);
-    tdsqlite3changeset_finalize(pIter);
-  }
-
-  return rc;
-}
-
-/* 
-** Destroy a rebaser object 
-*/
-SQLITE_API void tdsqlite3rebaser_delete(tdsqlite3_rebaser *p){
-  if( p ){
-    sessionDeleteTable(p->grp.pList);
-    tdsqlite3_free(p);
-  }
-}
-
-/* 
-** Global configuration
-*/
-SQLITE_API int tdsqlite3session_config(int op, void *pArg){
-  int rc = SQLITE_OK;
-  switch( op ){
-    case SQLITE_SESSION_CONFIG_STRMSIZE: {
-      int *pInt = (int*)pArg;
-      if( *pInt>0 ){
-        sessions_strm_chunk_size = *pInt;
-      }
-      *pInt = sessions_strm_chunk_size;
-      break;
-    }
-    default:
-      rc = SQLITE_MISUSE;
-      break;
-  }
-  return rc;
-}
-
-#endif /* SQLITE_ENABLE_SESSION && SQLITE_ENABLE_PREUPDATE_HOOK */
-
-/************** End of tdsqlite3session.c **************************************/
-/************** Begin file fts5.c ********************************************/
-
-
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS5) 
-
-#if !defined(NDEBUG) && !defined(SQLITE_DEBUG) 
-# define NDEBUG 1
-#endif
-#if defined(NDEBUG) && defined(SQLITE_DEBUG)
-# undef NDEBUG
-#endif
-
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** Interfaces to extend FTS5. Using the interfaces defined in this file, 
-** FTS5 may be extended with:
-**
-**     * custom tokenizers, and
-**     * custom auxiliary functions.
-*/
-
-
-#ifndef _FTS5_H
-#define _FTS5_H
-
-/* #include "sqlite3.h" */
-
-#if 0
-extern "C" {
-#endif
-
-/*************************************************************************
-** CUSTOM AUXILIARY FUNCTIONS
-**
-** Virtual table implementations may overload SQL functions by implementing
-** the tdsqlite3_module.xFindFunction() method.
-*/
-
-typedef struct Fts5ExtensionApi Fts5ExtensionApi;
-typedef struct Fts5Context Fts5Context;
-typedef struct Fts5PhraseIter Fts5PhraseIter;
-
-typedef void (*fts5_extension_function)(
-  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
-  Fts5Context *pFts,              /* First arg to pass to pApi functions */
-  tdsqlite3_context *pCtx,          /* Context for returning result/error */
-  int nVal,                       /* Number of values in apVal[] array */
-  tdsqlite3_value **apVal           /* Array of trailing arguments */
-);
-
-struct Fts5PhraseIter {
-  const unsigned char *a;
-  const unsigned char *b;
-};
-
-/*
-** EXTENSION API FUNCTIONS
-**
-** xUserData(pFts):
-**   Return a copy of the context pointer the extension function was 
-**   registered with.
-**
-** xColumnTotalSize(pFts, iCol, pnToken):
-**   If parameter iCol is less than zero, set output variable *pnToken
-**   to the total number of tokens in the FTS5 table. Or, if iCol is
-**   non-negative but less than the number of columns in the table, return
-**   the total number of tokens in column iCol, considering all rows in 
-**   the FTS5 table.
-**
-**   If parameter iCol is greater than or equal to the number of columns
-**   in the table, SQLITE_RANGE is returned. Or, if an error occurs (e.g.
-**   an OOM condition or IO error), an appropriate SQLite error code is 
-**   returned.
-**
-** xColumnCount(pFts):
-**   Return the number of columns in the table.
-**
-** xColumnSize(pFts, iCol, pnToken):
-**   If parameter iCol is less than zero, set output variable *pnToken
-**   to the total number of tokens in the current row. Or, if iCol is
-**   non-negative but less than the number of columns in the table, set
-**   *pnToken to the number of tokens in column iCol of the current row.
-**
-**   If parameter iCol is greater than or equal to the number of columns
-**   in the table, SQLITE_RANGE is returned. Or, if an error occurs (e.g.
-**   an OOM condition or IO error), an appropriate SQLite error code is 
-**   returned.
-**
-**   This function may be quite inefficient if used with an FTS5 table
-**   created with the "columnsize=0" option.
-**
-** xColumnText:
-**   This function attempts to retrieve the text of column iCol of the
-**   current document. If successful, (*pz) is set to point to a buffer
-**   containing the text in utf-8 encoding, (*pn) is set to the size in bytes
-**   (not characters) of the buffer and SQLITE_OK is returned. Otherwise,
-**   if an error occurs, an SQLite error code is returned and the final values
-**   of (*pz) and (*pn) are undefined.
-**
-** xPhraseCount:
-**   Returns the number of phrases in the current query expression.
-**
-** xPhraseSize:
-**   Returns the number of tokens in phrase iPhrase of the query. Phrases
-**   are numbered starting from zero.
-**
-** xInstCount:
-**   Set *pnInst to the total number of occurrences of all phrases within
-**   the query within the current row. Return SQLITE_OK if successful, or
-**   an error code (i.e. SQLITE_NOMEM) if an error occurs.
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. If the FTS5 table is created 
-**   with either "detail=none" or "detail=column" and "content=" option 
-**   (i.e. if it is a contentless table), then this API always returns 0.
-**
-** xInst:
-**   Query for the details of phrase match iIdx within the current row.
-**   Phrase matches are numbered starting from zero, so the iIdx argument
-**   should be greater than or equal to zero and smaller than the value
-**   output by xInstCount().
-**
-**   Usually, output parameter *piPhrase is set to the phrase number, *piCol
-**   to the column in which it occurs and *piOff the token offset of the
-**   first token of the phrase. Returns SQLITE_OK if successful, or an error
-**   code (i.e. SQLITE_NOMEM) if an error occurs.
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. 
-**
-** xRowid:
-**   Returns the rowid of the current row.
-**
-** xTokenize:
-**   Tokenize text using the tokenizer belonging to the FTS5 table.
-**
-** xQueryPhrase(pFts5, iPhrase, pUserData, xCallback):
-**   This API function is used to query the FTS table for phrase iPhrase
-**   of the current query. Specifically, a query equivalent to:
-**
-**       ... FROM ftstable WHERE ftstable MATCH $p ORDER BY rowid
-**
-**   with $p set to a phrase equivalent to the phrase iPhrase of the
-**   current query is executed. Any column filter that applies to
-**   phrase iPhrase of the current query is included in $p. For each 
-**   row visited, the callback function passed as the fourth argument 
-**   is invoked. The context and API objects passed to the callback 
-**   function may be used to access the properties of each matched row.
-**   Invoking Api.xUserData() returns a copy of the pointer passed as 
-**   the third argument to pUserData.
-**
-**   If the callback function returns any value other than SQLITE_OK, the
-**   query is abandoned and the xQueryPhrase function returns immediately.
-**   If the returned value is SQLITE_DONE, xQueryPhrase returns SQLITE_OK.
-**   Otherwise, the error code is propagated upwards.
-**
-**   If the query runs to completion without incident, SQLITE_OK is returned.
-**   Or, if some error occurs before the query completes or is aborted by
-**   the callback, an SQLite error code is returned.
-**
-**
-** xSetAuxdata(pFts5, pAux, xDelete)
-**
-**   Save the pointer passed as the second argument as the extension function's 
-**   "auxiliary data". The pointer may then be retrieved by the current or any
-**   future invocation of the same fts5 extension function made as part of
-**   the same MATCH query using the xGetAuxdata() API.
-**
-**   Each extension function is allocated a single auxiliary data slot for
-**   each FTS query (MATCH expression). If the extension function is invoked 
-**   more than once for a single FTS query, then all invocations share a 
-**   single auxiliary data context.
-**
-**   If there is already an auxiliary data pointer when this function is
-**   invoked, then it is replaced by the new pointer. If an xDelete callback
-**   was specified along with the original pointer, it is invoked at this
-**   point.
-**
-**   The xDelete callback, if one is specified, is also invoked on the
-**   auxiliary data pointer after the FTS5 query has finished.
-**
-**   If an error (e.g. an OOM condition) occurs within this function,
-**   the auxiliary data is set to NULL and an error code returned. If the
-**   xDelete parameter was not NULL, it is invoked on the auxiliary data
-**   pointer before returning.
-**
-**
-** xGetAuxdata(pFts5, bClear)
-**
-**   Returns the current auxiliary data pointer for the fts5 extension 
-**   function. See the xSetAuxdata() method for details.
-**
-**   If the bClear argument is non-zero, then the auxiliary data is cleared
-**   (set to NULL) before this function returns. In this case the xDelete,
-**   if any, is not invoked.
-**
-**
-** xRowCount(pFts5, pnRow)
-**
-**   This function is used to retrieve the total number of rows in the table.
-**   In other words, the same value that would be returned by:
-**
-**        SELECT count(*) FROM ftstable;
-**
-** xPhraseFirst()
-**   This function is used, along with type Fts5PhraseIter and the xPhraseNext
-**   method, to iterate through all instances of a single query phrase within
-**   the current row. This is the same information as is accessible via the
-**   xInstCount/xInst APIs. While the xInstCount/xInst APIs are more convenient
-**   to use, this API may be faster under some circumstances. To iterate 
-**   through instances of phrase iPhrase, use the following code:
-**
-**       Fts5PhraseIter iter;
-**       int iCol, iOff;
-**       for(pApi->xPhraseFirst(pFts, iPhrase, &iter, &iCol, &iOff);
-**           iCol>=0;
-**           pApi->xPhraseNext(pFts, &iter, &iCol, &iOff)
-**       ){
-**         // An instance of phrase iPhrase at offset iOff of column iCol
-**       }
-**
-**   The Fts5PhraseIter structure is defined above. Applications should not
-**   modify this structure directly - it should only be used as shown above
-**   with the xPhraseFirst() and xPhraseNext() API methods (and by
-**   xPhraseFirstColumn() and xPhraseNextColumn() as illustrated below).
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. If the FTS5 table is created 
-**   with either "detail=none" or "detail=column" and "content=" option 
-**   (i.e. if it is a contentless table), then this API always iterates
-**   through an empty set (all calls to xPhraseFirst() set iCol to -1).
-**
-** xPhraseNext()
-**   See xPhraseFirst above.
-**
-** xPhraseFirstColumn()
-**   This function and xPhraseNextColumn() are similar to the xPhraseFirst()
-**   and xPhraseNext() APIs described above. The difference is that instead
-**   of iterating through all instances of a phrase in the current row, these
-**   APIs are used to iterate through the set of columns in the current row
-**   that contain one or more instances of a specified phrase. For example:
-**
-**       Fts5PhraseIter iter;
-**       int iCol;
-**       for(pApi->xPhraseFirstColumn(pFts, iPhrase, &iter, &iCol);
-**           iCol>=0;
-**           pApi->xPhraseNextColumn(pFts, &iter, &iCol)
-**       ){
-**         // Column iCol contains at least one instance of phrase iPhrase
-**       }
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" option. If the FTS5 table is created with either 
-**   "detail=none" "content=" option (i.e. if it is a contentless table), 
-**   then this API always iterates through an empty set (all calls to 
-**   xPhraseFirstColumn() set iCol to -1).
-**
-**   The information accessed using this API and its companion
-**   xPhraseFirstColumn() may also be obtained using xPhraseFirst/xPhraseNext
-**   (or xInst/xInstCount). The chief advantage of this API is that it is
-**   significantly more efficient than those alternatives when used with
-**   "detail=column" tables.  
-**
-** xPhraseNextColumn()
-**   See xPhraseFirstColumn above.
-*/
-struct Fts5ExtensionApi {
-  int iVersion;                   /* Currently always set to 3 */
-
-  void *(*xUserData)(Fts5Context*);
-
-  int (*xColumnCount)(Fts5Context*);
-  int (*xRowCount)(Fts5Context*, tdsqlite3_int64 *pnRow);
-  int (*xColumnTotalSize)(Fts5Context*, int iCol, tdsqlite3_int64 *pnToken);
-
-  int (*xTokenize)(Fts5Context*, 
-    const char *pText, int nText, /* Text to tokenize */
-    void *pCtx,                   /* Context passed to xToken() */
-    int (*xToken)(void*, int, const char*, int, int, int)       /* Callback */
-  );
-
-  int (*xPhraseCount)(Fts5Context*);
-  int (*xPhraseSize)(Fts5Context*, int iPhrase);
-
-  int (*xInstCount)(Fts5Context*, int *pnInst);
-  int (*xInst)(Fts5Context*, int iIdx, int *piPhrase, int *piCol, int *piOff);
-
-  tdsqlite3_int64 (*xRowid)(Fts5Context*);
-  int (*xColumnText)(Fts5Context*, int iCol, const char **pz, int *pn);
-  int (*xColumnSize)(Fts5Context*, int iCol, int *pnToken);
-
-  int (*xQueryPhrase)(Fts5Context*, int iPhrase, void *pUserData,
-    int(*)(const Fts5ExtensionApi*,Fts5Context*,void*)
-  );
-  int (*xSetAuxdata)(Fts5Context*, void *pAux, void(*xDelete)(void*));
-  void *(*xGetAuxdata)(Fts5Context*, int bClear);
-
-  int (*xPhraseFirst)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*, int*);
-  void (*xPhraseNext)(Fts5Context*, Fts5PhraseIter*, int *piCol, int *piOff);
-
-  int (*xPhraseFirstColumn)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*);
-  void (*xPhraseNextColumn)(Fts5Context*, Fts5PhraseIter*, int *piCol);
-};
-
-/* 
-** CUSTOM AUXILIARY FUNCTIONS
-*************************************************************************/
-
-/*************************************************************************
-** CUSTOM TOKENIZERS
-**
-** Applications may also register custom tokenizer types. A tokenizer 
-** is registered by providing fts5 with a populated instance of the 
-** following structure. All structure methods must be defined, setting
-** any member of the fts5_tokenizer struct to NULL leads to undefined
-** behaviour. The structure methods are expected to function as follows:
-**
-** xCreate:
-**   This function is used to allocate and initialize a tokenizer instance.
-**   A tokenizer instance is required to actually tokenize text.
-**
-**   The first argument passed to this function is a copy of the (void*)
-**   pointer provided by the application when the fts5_tokenizer object
-**   was registered with FTS5 (the third argument to xCreateTokenizer()). 
-**   The second and third arguments are an array of nul-terminated strings
-**   containing the tokenizer arguments, if any, specified following the
-**   tokenizer name as part of the CREATE VIRTUAL TABLE statement used
-**   to create the FTS5 table.
-**
-**   The final argument is an output variable. If successful, (*ppOut) 
-**   should be set to point to the new tokenizer handle and SQLITE_OK
-**   returned. If an error occurs, some value other than SQLITE_OK should
-**   be returned. In this case, fts5 assumes that the final value of *ppOut 
-**   is undefined.
-**
-** xDelete:
-**   This function is invoked to delete a tokenizer handle previously
-**   allocated using xCreate(). Fts5 guarantees that this function will
-**   be invoked exactly once for each successful call to xCreate().
-**
-** xTokenize:
-**   This function is expected to tokenize the nText byte string indicated 
-**   by argument pText. pText may or may not be nul-terminated. The first
-**   argument passed to this function is a pointer to an Fts5Tokenizer object
-**   returned by an earlier call to xCreate().
-**
-**   The second argument indicates the reason that FTS5 is requesting
-**   tokenization of the supplied text. This is always one of the following
-**   four values:
-**
-**   <ul><li> <b>FTS5_TOKENIZE_DOCUMENT</b> - A document is being inserted into
-**            or removed from the FTS table. The tokenizer is being invoked to
-**            determine the set of tokens to add to (or delete from) the
-**            FTS index.
-**
-**       <li> <b>FTS5_TOKENIZE_QUERY</b> - A MATCH query is being executed 
-**            against the FTS index. The tokenizer is being called to tokenize 
-**            a bareword or quoted string specified as part of the query.
-**
-**       <li> <b>(FTS5_TOKENIZE_QUERY | FTS5_TOKENIZE_PREFIX)</b> - Same as
-**            FTS5_TOKENIZE_QUERY, except that the bareword or quoted string is
-**            followed by a "*" character, indicating that the last token
-**            returned by the tokenizer will be treated as a token prefix.
-**
-**       <li> <b>FTS5_TOKENIZE_AUX</b> - The tokenizer is being invoked to 
-**            satisfy an fts5_api.xTokenize() request made by an auxiliary
-**            function. Or an fts5_api.xColumnSize() request made by the same
-**            on a columnsize=0 database.  
-**   </ul>
-**
-**   For each token in the input string, the supplied callback xToken() must
-**   be invoked. The first argument to it should be a copy of the pointer
-**   passed as the second argument to xTokenize(). The third and fourth
-**   arguments are a pointer to a buffer containing the token text, and the
-**   size of the token in bytes. The 4th and 5th arguments are the byte offsets
-**   of the first byte of and first byte immediately following the text from
-**   which the token is derived within the input.
-**
-**   The second argument passed to the xToken() callback ("tflags") should
-**   normally be set to 0. The exception is if the tokenizer supports 
-**   synonyms. In this case see the discussion below for details.
-**
-**   FTS5 assumes the xToken() callback is invoked for each token in the 
-**   order that they occur within the input text.
-**
-**   If an xToken() callback returns any value other than SQLITE_OK, then
-**   the tokenization should be abandoned and the xTokenize() method should
-**   immediately return a copy of the xToken() return value. Or, if the
-**   input buffer is exhausted, xTokenize() should return SQLITE_OK. Finally,
-**   if an error occurs with the xTokenize() implementation itself, it
-**   may abandon the tokenization and return any error code other than
-**   SQLITE_OK or SQLITE_DONE.
-**
-** SYNONYM SUPPORT
-**
-**   Custom tokenizers may also support synonyms. Consider a case in which a
-**   user wishes to query for a phrase such as "first place". Using the 
-**   built-in tokenizers, the FTS5 query 'first + place' will match instances
-**   of "first place" within the document set, but not alternative forms
-**   such as "1st place". In some applications, it would be better to match
-**   all instances of "first place" or "1st place" regardless of which form
-**   the user specified in the MATCH query text.
-**
-**   There are several ways to approach this in FTS5:
-**
-**   <ol><li> By mapping all synonyms to a single token. In this case, using
-**            the above example, this means that the tokenizer returns the
-**            same token for inputs "first" and "1st". Say that token is in
-**            fact "first", so that when the user inserts the document "I won
-**            1st place" entries are added to the index for tokens "i", "won",
-**            "first" and "place". If the user then queries for '1st + place',
-**            the tokenizer substitutes "first" for "1st" and the query works
-**            as expected.
-**
-**       <li> By querying the index for all synonyms of each query term
-**            separately. In this case, when tokenizing query text, the
-**            tokenizer may provide multiple synonyms for a single term 
-**            within the document. FTS5 then queries the index for each 
-**            synonym individually. For example, faced with the query:
-**
-**   <codeblock>
-**     ... MATCH 'first place'</codeblock>
-**
-**            the tokenizer offers both "1st" and "first" as synonyms for the
-**            first token in the MATCH query and FTS5 effectively runs a query 
-**            similar to:
-**
-**   <codeblock>
-**     ... MATCH '(first OR 1st) place'</codeblock>
-**
-**            except that, for the purposes of auxiliary functions, the query
-**            still appears to contain just two phrases - "(first OR 1st)" 
-**            being treated as a single phrase.
-**
-**       <li> By adding multiple synonyms for a single term to the FTS index.
-**            Using this method, when tokenizing document text, the tokenizer
-**            provides multiple synonyms for each token. So that when a 
-**            document such as "I won first place" is tokenized, entries are
-**            added to the FTS index for "i", "won", "first", "1st" and
-**            "place".
-**
-**            This way, even if the tokenizer does not provide synonyms
-**            when tokenizing query text (it should not - to do so would be
-**            inefficient), it doesn't matter if the user queries for 
-**            'first + place' or '1st + place', as there are entries in the
-**            FTS index corresponding to both forms of the first token.
-**   </ol>
-**
-**   Whether it is parsing document or query text, any call to xToken that
-**   specifies a <i>tflags</i> argument with the FTS5_TOKEN_COLOCATED bit
-**   is considered to supply a synonym for the previous token. For example,
-**   when parsing the document "I won first place", a tokenizer that supports
-**   synonyms would call xToken() 5 times, as follows:
-**
-**   <codeblock>
-**       xToken(pCtx, 0, "i",                      1,  0,  1);
-**       xToken(pCtx, 0, "won",                    3,  2,  5);
-**       xToken(pCtx, 0, "first",                  5,  6, 11);
-**       xToken(pCtx, FTS5_TOKEN_COLOCATED, "1st", 3,  6, 11);
-**       xToken(pCtx, 0, "place",                  5, 12, 17);
-**</codeblock>
-**
-**   It is an error to specify the FTS5_TOKEN_COLOCATED flag the first time
-**   xToken() is called. Multiple synonyms may be specified for a single token
-**   by making multiple calls to xToken(FTS5_TOKEN_COLOCATED) in sequence. 
-**   There is no limit to the number of synonyms that may be provided for a
-**   single token.
-**
-**   In many cases, method (1) above is the best approach. It does not add 
-**   extra data to the FTS index or require FTS5 to query for multiple terms,
-**   so it is efficient in terms of disk space and query speed. However, it
-**   does not support prefix queries very well. If, as suggested above, the
-**   token "first" is substituted for "1st" by the tokenizer, then the query:
-**
-**   <codeblock>
-**     ... MATCH '1s*'</codeblock>
-**
-**   will not match documents that contain the token "1st" (as the tokenizer
-**   will probably not map "1s" to any prefix of "first").
-**
-**   For full prefix support, method (3) may be preferred. In this case, 
-**   because the index contains entries for both "first" and "1st", prefix
-**   queries such as 'fi*' or '1s*' will match correctly. However, because
-**   extra entries are added to the FTS index, this method uses more space
-**   within the database.
-**
-**   Method (2) offers a midpoint between (1) and (3). Using this method,
-**   a query such as '1s*' will match documents that contain the literal 
-**   token "1st", but not "first" (assuming the tokenizer is not able to
-**   provide synonyms for prefixes). However, a non-prefix query like '1st'
-**   will match against "1st" and "first". This method does not require
-**   extra disk space, as no extra entries are added to the FTS index. 
-**   On the other hand, it may require more CPU cycles to run MATCH queries,
-**   as separate queries of the FTS index are required for each synonym.
-**
-**   When using methods (2) or (3), it is important that the tokenizer only
-**   provide synonyms when tokenizing document text (method (2)) or query
-**   text (method (3)), not both. Doing so will not cause any errors, but is
-**   inefficient.
-*/
-typedef struct Fts5Tokenizer Fts5Tokenizer;
-typedef struct fts5_tokenizer fts5_tokenizer;
-struct fts5_tokenizer {
-  int (*xCreate)(void*, const char **azArg, int nArg, Fts5Tokenizer **ppOut);
-  void (*xDelete)(Fts5Tokenizer*);
-  int (*xTokenize)(Fts5Tokenizer*, 
-      void *pCtx,
-      int flags,            /* Mask of FTS5_TOKENIZE_* flags */
-      const char *pText, int nText, 
-      int (*xToken)(
-        void *pCtx,         /* Copy of 2nd argument to xTokenize() */
-        int tflags,         /* Mask of FTS5_TOKEN_* flags */
-        const char *pToken, /* Pointer to buffer containing token */
-        int nToken,         /* Size of token in bytes */
-        int iStart,         /* Byte offset of token within input text */
-        int iEnd            /* Byte offset of end of token within input text */
-      )
-  );
-};
-
-/* Flags that may be passed as the third argument to xTokenize() */
-#define FTS5_TOKENIZE_QUERY     0x0001
-#define FTS5_TOKENIZE_PREFIX    0x0002
-#define FTS5_TOKENIZE_DOCUMENT  0x0004
-#define FTS5_TOKENIZE_AUX       0x0008
-
-/* Flags that may be passed by the tokenizer implementation back to FTS5
-** as the third argument to the supplied xToken callback. */
-#define FTS5_TOKEN_COLOCATED    0x0001      /* Same position as prev. token */
-
-/*
-** END OF CUSTOM TOKENIZERS
-*************************************************************************/
-
-/*************************************************************************
-** FTS5 EXTENSION REGISTRATION API
-*/
-typedef struct fts5_api fts5_api;
-struct fts5_api {
-  int iVersion;                   /* Currently always set to 2 */
-
-  /* Create a new tokenizer */
-  int (*xCreateTokenizer)(
-    fts5_api *pApi,
-    const char *zName,
-    void *pContext,
-    fts5_tokenizer *pTokenizer,
-    void (*xDestroy)(void*)
-  );
-
-  /* Find an existing tokenizer */
-  int (*xFindTokenizer)(
-    fts5_api *pApi,
-    const char *zName,
-    void **ppContext,
-    fts5_tokenizer *pTokenizer
-  );
-
-  /* Create a new auxiliary function */
-  int (*xCreateFunction)(
-    fts5_api *pApi,
-    const char *zName,
-    void *pContext,
-    fts5_extension_function xFunction,
-    void (*xDestroy)(void*)
-  );
-};
-
-/*
-** END OF REGISTRATION API
-*************************************************************************/
-
-#if 0
-}  /* end of the 'extern "C"' block */
-#endif
-
-#endif /* _FTS5_H */
-
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-*/
-#ifndef _FTS5INT_H
-#define _FTS5INT_H
-
-/* #include "fts5.h" */
-/* #include "tdsqlite3ext.h" */
-SQLITE_EXTENSION_INIT1
-
-/* #include <string.h> */
-/* #include <assert.h> */
-
-#ifndef SQLITE_AMALGAMATION
-
-typedef unsigned char  u8;
-typedef unsigned int   u32;
-typedef unsigned short u16;
-typedef short i16;
-typedef tdsqlite3_int64 i64;
-typedef tdsqlite3_uint64 u64;
-
-#ifndef ArraySize
-# define ArraySize(x) ((int)(sizeof(x) / sizeof(x[0])))
-#endif
-
-#define testcase(x)
-#define ALWAYS(x) 1
-#define NEVER(x) 0
-
-#define MIN(x,y) (((x) < (y)) ? (x) : (y))
-#define MAX(x,y) (((x) > (y)) ? (x) : (y))
-
-/*
-** Constants for the largest and smallest possible 64-bit signed integers.
-*/
-# define LARGEST_INT64  (0xffffffff|(((i64)0x7fffffff)<<32))
-# define SMALLEST_INT64 (((i64)-1) - LARGEST_INT64)
-
-#endif
-
-/* Truncate very long tokens to this many bytes. Hard limit is 
-** (65536-1-1-4-9)==65521 bytes. The limiting factor is the 16-bit offset
-** field that occurs at the start of each leaf page (see fts5_index.c). */
-#define FTS5_MAX_TOKEN_SIZE 32768
-
-/*
-** Maximum number of prefix indexes on single FTS5 table. This must be
-** less than 32. If it is set to anything large than that, an #error
-** directive in fts5_index.c will cause the build to fail.
-*/
-#define FTS5_MAX_PREFIX_INDEXES 31
-
-/*
-** Maximum segments permitted in a single index 
-*/
-#define FTS5_MAX_SEGMENT 2000
-
-#define FTS5_DEFAULT_NEARDIST 10
-#define FTS5_DEFAULT_RANK     "bm25"
-
-/* Name of rank and rowid columns */
-#define FTS5_RANK_NAME "rank"
-#define FTS5_ROWID_NAME "rowid"
-
-#ifdef SQLITE_DEBUG
-# define FTS5_CORRUPT tdsqlite3Fts5Corrupt()
-static int tdsqlite3Fts5Corrupt(void);
-#else
-# define FTS5_CORRUPT SQLITE_CORRUPT_VTAB
-#endif
-
-/*
-** The assert_nc() macro is similar to the assert() macro, except that it
-** is used for assert() conditions that are true only if it can be 
-** guranteed that the database is not corrupt.
-*/
-#ifdef SQLITE_DEBUG
-SQLITE_API extern int tdsqlite3_fts5_may_be_corrupt;
-# define assert_nc(x) assert(tdsqlite3_fts5_may_be_corrupt || (x))
-#else
-# define assert_nc(x) assert(x)
-#endif
-
-/*
-** A version of memcmp() that does not cause asan errors if one of the pointer
-** parameters is NULL and the number of bytes to compare is zero.
-*/
-#define fts5Memcmp(s1, s2, n) ((n)==0 ? 0 : memcmp((s1), (s2), (n)))
-
-/* Mark a function parameter as unused, to suppress nuisance compiler
-** warnings. */
-#ifndef UNUSED_PARAM
-# define UNUSED_PARAM(X)  (void)(X)
-#endif
-
-#ifndef UNUSED_PARAM2
-# define UNUSED_PARAM2(X, Y)  (void)(X), (void)(Y)
-#endif
-
-typedef struct Fts5Global Fts5Global;
-typedef struct Fts5Colset Fts5Colset;
-
-/* If a NEAR() clump or phrase may only match a specific set of columns, 
-** then an object of the following type is used to record the set of columns.
-** Each entry in the aiCol[] array is a column that may be matched.
-**
-** This object is used by fts5_expr.c and fts5_index.c.
-*/
-struct Fts5Colset {
-  int nCol;
-  int aiCol[1];
-};
-
-
-
-/**************************************************************************
-** Interface to code in fts5_config.c. fts5_config.c contains contains code
-** to parse the arguments passed to the CREATE VIRTUAL TABLE statement.
-*/
-
-typedef struct Fts5Config Fts5Config;
-
-/*
-** An instance of the following structure encodes all information that can
-** be gleaned from the CREATE VIRTUAL TABLE statement.
-**
-** And all information loaded from the %_config table.
-**
-** nAutomerge:
-**   The minimum number of segments that an auto-merge operation should
-**   attempt to merge together. A value of 1 sets the object to use the 
-**   compile time default. Zero disables auto-merge altogether.
-**
-** zContent:
-**
-** zContentRowid:
-**   The value of the content_rowid= option, if one was specified. Or 
-**   the string "rowid" otherwise. This text is not quoted - if it is
-**   used as part of an SQL statement it needs to be quoted appropriately.
-**
-** zContentExprlist:
-**
-** pzErrmsg:
-**   This exists in order to allow the fts5_index.c module to return a 
-**   decent error message if it encounters a file-format version it does
-**   not understand.
-**
-** bColumnsize:
-**   True if the %_docsize table is created.
-**
-** bPrefixIndex:
-**   This is only used for debugging. If set to false, any prefix indexes
-**   are ignored. This value is configured using:
-**
-**       INSERT INTO tbl(tbl, rank) VALUES('prefix-index', $bPrefixIndex);
-**
-*/
-struct Fts5Config {
-  tdsqlite3 *db;                    /* Database handle */
-  char *zDb;                      /* Database holding FTS index (e.g. "main") */
-  char *zName;                    /* Name of FTS index */
-  int nCol;                       /* Number of columns */
-  char **azCol;                   /* Column names */
-  u8 *abUnindexed;                /* True for unindexed columns */
-  int nPrefix;                    /* Number of prefix indexes */
-  int *aPrefix;                   /* Sizes in bytes of nPrefix prefix indexes */
-  int eContent;                   /* An FTS5_CONTENT value */
-  char *zContent;                 /* content table */ 
-  char *zContentRowid;            /* "content_rowid=" option value */ 
-  int bColumnsize;                /* "columnsize=" option value (dflt==1) */
-  int eDetail;                    /* FTS5_DETAIL_XXX value */
-  char *zContentExprlist;
-  Fts5Tokenizer *pTok;
-  fts5_tokenizer *pTokApi;
-  int bLock;                      /* True when table is preparing statement */
-
-  /* Values loaded from the %_config table */
-  int iCookie;                    /* Incremented when %_config is modified */
-  int pgsz;                       /* Approximate page size used in %_data */
-  int nAutomerge;                 /* 'automerge' setting */
-  int nCrisisMerge;               /* Maximum allowed segments per level */
-  int nUsermerge;                 /* 'usermerge' setting */
-  int nHashSize;                  /* Bytes of memory for in-memory hash */
-  char *zRank;                    /* Name of rank function */
-  char *zRankArgs;                /* Arguments to rank function */
-
-  /* If non-NULL, points to tdsqlite3_vtab.base.zErrmsg. Often NULL. */
-  char **pzErrmsg;
-
-#ifdef SQLITE_DEBUG
-  int bPrefixIndex;               /* True to use prefix-indexes */
-#endif
-};
-
-/* Current expected value of %_config table 'version' field */
-#define FTS5_CURRENT_VERSION 4
-
-#define FTS5_CONTENT_NORMAL   0
-#define FTS5_CONTENT_NONE     1
-#define FTS5_CONTENT_EXTERNAL 2
-
-#define FTS5_DETAIL_FULL    0
-#define FTS5_DETAIL_NONE    1
-#define FTS5_DETAIL_COLUMNS 2
-
-
-
-static int tdsqlite3Fts5ConfigParse(
-    Fts5Global*, tdsqlite3*, int, const char **, Fts5Config**, char**
-);
-static void tdsqlite3Fts5ConfigFree(Fts5Config*);
-
-static int tdsqlite3Fts5ConfigDeclareVtab(Fts5Config *pConfig);
-
-static int tdsqlite3Fts5Tokenize(
-  Fts5Config *pConfig,            /* FTS5 Configuration object */
-  int flags,                      /* FTS5_TOKENIZE_* flags */
-  const char *pText, int nText,   /* Text to tokenize */
-  void *pCtx,                     /* Context passed to xToken() */
-  int (*xToken)(void*, int, const char*, int, int, int)    /* Callback */
-);
-
-static void tdsqlite3Fts5Dequote(char *z);
-
-/* Load the contents of the %_config table */
-static int tdsqlite3Fts5ConfigLoad(Fts5Config*, int);
-
-/* Set the value of a single config attribute */
-static int tdsqlite3Fts5ConfigSetValue(Fts5Config*, const char*, tdsqlite3_value*, int*);
-
-static int tdsqlite3Fts5ConfigParseRank(const char*, char**, char**);
-
-/*
-** End of interface to code in fts5_config.c.
-**************************************************************************/
-
-/**************************************************************************
-** Interface to code in fts5_buffer.c.
-*/
-
-/*
-** Buffer object for the incremental building of string data.
-*/
-typedef struct Fts5Buffer Fts5Buffer;
-struct Fts5Buffer {
-  u8 *p;
-  int n;
-  int nSpace;
-};
-
-static int tdsqlite3Fts5BufferSize(int*, Fts5Buffer*, u32);
-static void tdsqlite3Fts5BufferAppendVarint(int*, Fts5Buffer*, i64);
-static void tdsqlite3Fts5BufferAppendBlob(int*, Fts5Buffer*, u32, const u8*);
-static void tdsqlite3Fts5BufferAppendString(int *, Fts5Buffer*, const char*);
-static void tdsqlite3Fts5BufferFree(Fts5Buffer*);
-static void tdsqlite3Fts5BufferZero(Fts5Buffer*);
-static void tdsqlite3Fts5BufferSet(int*, Fts5Buffer*, int, const u8*);
-static void tdsqlite3Fts5BufferAppendPrintf(int *, Fts5Buffer*, char *zFmt, ...);
-
-static char *tdsqlite3Fts5Mprintf(int *pRc, const char *zFmt, ...);
-
-#define fts5BufferZero(x)             tdsqlite3Fts5BufferZero(x)
-#define fts5BufferAppendVarint(a,b,c) tdsqlite3Fts5BufferAppendVarint(a,b,c)
-#define fts5BufferFree(a)             tdsqlite3Fts5BufferFree(a)
-#define fts5BufferAppendBlob(a,b,c,d) tdsqlite3Fts5BufferAppendBlob(a,b,c,d)
-#define fts5BufferSet(a,b,c,d)        tdsqlite3Fts5BufferSet(a,b,c,d)
-
-#define fts5BufferGrow(pRc,pBuf,nn) ( \
-  (u32)((pBuf)->n) + (u32)(nn) <= (u32)((pBuf)->nSpace) ? 0 : \
-    tdsqlite3Fts5BufferSize((pRc),(pBuf),(nn)+(pBuf)->n) \
-)
-
-/* Write and decode big-endian 32-bit integer values */
-static void tdsqlite3Fts5Put32(u8*, int);
-static int tdsqlite3Fts5Get32(const u8*);
-
-#define FTS5_POS2COLUMN(iPos) (int)(iPos >> 32)
-#define FTS5_POS2OFFSET(iPos) (int)(iPos & 0x7FFFFFFF)
-
-typedef struct Fts5PoslistReader Fts5PoslistReader;
-struct Fts5PoslistReader {
-  /* Variables used only by tdsqlite3Fts5PoslistIterXXX() functions. */
-  const u8 *a;                    /* Position list to iterate through */
-  int n;                          /* Size of buffer at a[] in bytes */
-  int i;                          /* Current offset in a[] */
-
-  u8 bFlag;                       /* For client use (any custom purpose) */
-
-  /* Output variables */
-  u8 bEof;                        /* Set to true at EOF */
-  i64 iPos;                       /* (iCol<<32) + iPos */
-};
-static int tdsqlite3Fts5PoslistReaderInit(
-  const u8 *a, int n,             /* Poslist buffer to iterate through */
-  Fts5PoslistReader *pIter        /* Iterator object to initialize */
-);
-static int tdsqlite3Fts5PoslistReaderNext(Fts5PoslistReader*);
-
-typedef struct Fts5PoslistWriter Fts5PoslistWriter;
-struct Fts5PoslistWriter {
-  i64 iPrev;
-};
-static int tdsqlite3Fts5PoslistWriterAppend(Fts5Buffer*, Fts5PoslistWriter*, i64);
-static void tdsqlite3Fts5PoslistSafeAppend(Fts5Buffer*, i64*, i64);
-
-static int tdsqlite3Fts5PoslistNext64(
-  const u8 *a, int n,             /* Buffer containing poslist */
-  int *pi,                        /* IN/OUT: Offset within a[] */
-  i64 *piOff                      /* IN/OUT: Current offset */
-);
-
-/* Malloc utility */
-static void *tdsqlite3Fts5MallocZero(int *pRc, tdsqlite3_int64 nByte);
-static char *tdsqlite3Fts5Strndup(int *pRc, const char *pIn, int nIn);
-
-/* Character set tests (like isspace(), isalpha() etc.) */
-static int tdsqlite3Fts5IsBareword(char t);
-
-
-/* Bucket of terms object used by the integrity-check in offsets=0 mode. */
-typedef struct Fts5Termset Fts5Termset;
-static int tdsqlite3Fts5TermsetNew(Fts5Termset**);
-static int tdsqlite3Fts5TermsetAdd(Fts5Termset*, int, const char*, int, int *pbPresent);
-static void tdsqlite3Fts5TermsetFree(Fts5Termset*);
-
-/*
-** End of interface to code in fts5_buffer.c.
-**************************************************************************/
-
-/**************************************************************************
-** Interface to code in fts5_index.c. fts5_index.c contains contains code
-** to access the data stored in the %_data table.
-*/
-
-typedef struct Fts5Index Fts5Index;
-typedef struct Fts5IndexIter Fts5IndexIter;
-
-struct Fts5IndexIter {
-  i64 iRowid;
-  const u8 *pData;
-  int nData;
-  u8 bEof;
-};
-
-#define tdsqlite3Fts5IterEof(x) ((x)->bEof)
-
-/*
-** Values used as part of the flags argument passed to IndexQuery().
-*/
-#define FTS5INDEX_QUERY_PREFIX     0x0001   /* Prefix query */
-#define FTS5INDEX_QUERY_DESC       0x0002   /* Docs in descending rowid order */
-#define FTS5INDEX_QUERY_TEST_NOIDX 0x0004   /* Do not use prefix index */
-#define FTS5INDEX_QUERY_SCAN       0x0008   /* Scan query (fts5vocab) */
-
-/* The following are used internally by the fts5_index.c module. They are
-** defined here only to make it easier to avoid clashes with the flags
-** above. */
-#define FTS5INDEX_QUERY_SKIPEMPTY  0x0010
-#define FTS5INDEX_QUERY_NOOUTPUT   0x0020
-
-/*
-** Create/destroy an Fts5Index object.
-*/
-static int tdsqlite3Fts5IndexOpen(Fts5Config *pConfig, int bCreate, Fts5Index**, char**);
-static int tdsqlite3Fts5IndexClose(Fts5Index *p);
-
-/*
-** Return a simple checksum value based on the arguments.
-*/
-static u64 tdsqlite3Fts5IndexEntryCksum(
-  i64 iRowid, 
-  int iCol, 
-  int iPos, 
-  int iIdx,
-  const char *pTerm,
-  int nTerm
-);
-
-/*
-** Argument p points to a buffer containing utf-8 text that is n bytes in 
-** size. Return the number of bytes in the nChar character prefix of the
-** buffer, or 0 if there are less than nChar characters in total.
-*/
-static int tdsqlite3Fts5IndexCharlenToBytelen(
-  const char *p, 
-  int nByte, 
-  int nChar
-);
-
-/*
-** Open a new iterator to iterate though all rowids that match the 
-** specified token or token prefix.
-*/
-static int tdsqlite3Fts5IndexQuery(
-  Fts5Index *p,                   /* FTS index to query */
-  const char *pToken, int nToken, /* Token (or prefix) to query for */
-  int flags,                      /* Mask of FTS5INDEX_QUERY_X flags */
-  Fts5Colset *pColset,            /* Match these columns only */
-  Fts5IndexIter **ppIter          /* OUT: New iterator object */
-);
-
-/*
-** The various operations on open token or token prefix iterators opened
-** using tdsqlite3Fts5IndexQuery().
-*/
-static int tdsqlite3Fts5IterNext(Fts5IndexIter*);
-static int tdsqlite3Fts5IterNextFrom(Fts5IndexIter*, i64 iMatch);
-
-/*
-** Close an iterator opened by tdsqlite3Fts5IndexQuery().
-*/
-static void tdsqlite3Fts5IterClose(Fts5IndexIter*);
-
-/*
-** Close the reader blob handle, if it is open.
-*/
-static void tdsqlite3Fts5IndexCloseReader(Fts5Index*);
-
-/*
-** This interface is used by the fts5vocab module.
-*/
-static const char *tdsqlite3Fts5IterTerm(Fts5IndexIter*, int*);
-static int tdsqlite3Fts5IterNextScan(Fts5IndexIter*);
-
-
-/*
-** Insert or remove data to or from the index. Each time a document is 
-** added to or removed from the index, this function is called one or more
-** times.
-**
-** For an insert, it must be called once for each token in the new document.
-** If the operation is a delete, it must be called (at least) once for each
-** unique token in the document with an iCol value less than zero. The iPos
-** argument is ignored for a delete.
-*/
-static int tdsqlite3Fts5IndexWrite(
-  Fts5Index *p,                   /* Index to write to */
-  int iCol,                       /* Column token appears in (-ve -> delete) */
-  int iPos,                       /* Position of token within column */
-  const char *pToken, int nToken  /* Token to add or remove to or from index */
-);
-
-/*
-** Indicate that subsequent calls to tdsqlite3Fts5IndexWrite() pertain to
-** document iDocid.
-*/
-static int tdsqlite3Fts5IndexBeginWrite(
-  Fts5Index *p,                   /* Index to write to */
-  int bDelete,                    /* True if current operation is a delete */
-  i64 iDocid                      /* Docid to add or remove data from */
-);
-
-/*
-** Flush any data stored in the in-memory hash tables to the database.
-** Also close any open blob handles.
-*/
-static int tdsqlite3Fts5IndexSync(Fts5Index *p);
-
-/*
-** Discard any data stored in the in-memory hash tables. Do not write it
-** to the database. Additionally, assume that the contents of the %_data
-** table may have changed on disk. So any in-memory caches of %_data 
-** records must be invalidated.
-*/
-static int tdsqlite3Fts5IndexRollback(Fts5Index *p);
-
-/*
-** Get or set the "averages" values.
-*/
-static int tdsqlite3Fts5IndexGetAverages(Fts5Index *p, i64 *pnRow, i64 *anSize);
-static int tdsqlite3Fts5IndexSetAverages(Fts5Index *p, const u8*, int);
-
-/*
-** Functions called by the storage module as part of integrity-check.
-*/
-static int tdsqlite3Fts5IndexIntegrityCheck(Fts5Index*, u64 cksum);
-
-/* 
-** Called during virtual module initialization to register UDF 
-** fts5_decode() with SQLite 
-*/
-static int tdsqlite3Fts5IndexInit(tdsqlite3*);
-
-static int tdsqlite3Fts5IndexSetCookie(Fts5Index*, int);
-
-/*
-** Return the total number of entries read from the %_data table by 
-** this connection since it was created.
-*/
-static int tdsqlite3Fts5IndexReads(Fts5Index *p);
-
-static int tdsqlite3Fts5IndexReinit(Fts5Index *p);
-static int tdsqlite3Fts5IndexOptimize(Fts5Index *p);
-static int tdsqlite3Fts5IndexMerge(Fts5Index *p, int nMerge);
-static int tdsqlite3Fts5IndexReset(Fts5Index *p);
-
-static int tdsqlite3Fts5IndexLoadConfig(Fts5Index *p);
-
-/*
-** End of interface to code in fts5_index.c.
-**************************************************************************/
-
-/**************************************************************************
-** Interface to code in fts5_varint.c. 
-*/
-static int tdsqlite3Fts5GetVarint32(const unsigned char *p, u32 *v);
-static int tdsqlite3Fts5GetVarintLen(u32 iVal);
-static u8 tdsqlite3Fts5GetVarint(const unsigned char*, u64*);
-static int tdsqlite3Fts5PutVarint(unsigned char *p, u64 v);
-
-#define fts5GetVarint32(a,b) tdsqlite3Fts5GetVarint32(a,(u32*)&b)
-#define fts5GetVarint    tdsqlite3Fts5GetVarint
-
-#define fts5FastGetVarint32(a, iOff, nVal) {      \
-  nVal = (a)[iOff++];                             \
-  if( nVal & 0x80 ){                              \
-    iOff--;                                       \
-    iOff += fts5GetVarint32(&(a)[iOff], nVal);    \
-  }                                               \
-}
-
-
-/*
-** End of interface to code in fts5_varint.c.
-**************************************************************************/
-
-
-/**************************************************************************
-** Interface to code in fts5_main.c. 
-*/
-
-/*
-** Virtual-table object.
-*/
-typedef struct Fts5Table Fts5Table;
-struct Fts5Table {
-  tdsqlite3_vtab base;              /* Base class used by SQLite core */
-  Fts5Config *pConfig;            /* Virtual table configuration */
-  Fts5Index *pIndex;              /* Full-text index */
-};
-
-static int tdsqlite3Fts5GetTokenizer(
-  Fts5Global*, 
-  const char **azArg,
-  int nArg,
-  Fts5Tokenizer**,
-  fts5_tokenizer**,
-  char **pzErr
-);
-
-static Fts5Table *tdsqlite3Fts5TableFromCsrid(Fts5Global*, i64);
-
-static int tdsqlite3Fts5FlushToDisk(Fts5Table*);
-
-/*
-** End of interface to code in fts5.c.
-**************************************************************************/
-
-/**************************************************************************
-** Interface to code in fts5_hash.c. 
-*/
-typedef struct Fts5Hash Fts5Hash;
-
-/*
-** Create a hash table, free a hash table.
-*/
-static int tdsqlite3Fts5HashNew(Fts5Config*, Fts5Hash**, int *pnSize);
-static void tdsqlite3Fts5HashFree(Fts5Hash*);
-
-static int tdsqlite3Fts5HashWrite(
-  Fts5Hash*,
-  i64 iRowid,                     /* Rowid for this entry */
-  int iCol,                       /* Column token appears in (-ve -> delete) */
-  int iPos,                       /* Position of token within column */
-  char bByte,
-  const char *pToken, int nToken  /* Token to add or remove to or from index */
-);
-
-/*
-** Empty (but do not delete) a hash table.
-*/
-static void tdsqlite3Fts5HashClear(Fts5Hash*);
-
-static int tdsqlite3Fts5HashQuery(
-  Fts5Hash*,                      /* Hash table to query */
-  int nPre,
-  const char *pTerm, int nTerm,   /* Query term */
-  void **ppObj,                   /* OUT: Pointer to doclist for pTerm */
-  int *pnDoclist                  /* OUT: Size of doclist in bytes */
-);
-
-static int tdsqlite3Fts5HashScanInit(
-  Fts5Hash*,                      /* Hash table to query */
-  const char *pTerm, int nTerm    /* Query prefix */
-);
-static void tdsqlite3Fts5HashScanNext(Fts5Hash*);
-static int tdsqlite3Fts5HashScanEof(Fts5Hash*);
-static void tdsqlite3Fts5HashScanEntry(Fts5Hash *,
-  const char **pzTerm,            /* OUT: term (nul-terminated) */
-  const u8 **ppDoclist,           /* OUT: pointer to doclist */
-  int *pnDoclist                  /* OUT: size of doclist in bytes */
-);
-
-
-/*
-** End of interface to code in fts5_hash.c.
-**************************************************************************/
-
-/**************************************************************************
-** Interface to code in fts5_storage.c. fts5_storage.c contains contains 
-** code to access the data stored in the %_content and %_docsize tables.
-*/
-
-#define FTS5_STMT_SCAN_ASC  0     /* SELECT rowid, * FROM ... ORDER BY 1 ASC */
-#define FTS5_STMT_SCAN_DESC 1     /* SELECT rowid, * FROM ... ORDER BY 1 DESC */
-#define FTS5_STMT_LOOKUP    2     /* SELECT rowid, * FROM ... WHERE rowid=? */
-
-typedef struct Fts5Storage Fts5Storage;
-
-static int tdsqlite3Fts5StorageOpen(Fts5Config*, Fts5Index*, int, Fts5Storage**, char**);
-static int tdsqlite3Fts5StorageClose(Fts5Storage *p);
-static int tdsqlite3Fts5StorageRename(Fts5Storage*, const char *zName);
-
-static int tdsqlite3Fts5DropAll(Fts5Config*);
-static int tdsqlite3Fts5CreateTable(Fts5Config*, const char*, const char*, int, char **);
-
-static int tdsqlite3Fts5StorageDelete(Fts5Storage *p, i64, tdsqlite3_value**);
-static int tdsqlite3Fts5StorageContentInsert(Fts5Storage *p, tdsqlite3_value**, i64*);
-static int tdsqlite3Fts5StorageIndexInsert(Fts5Storage *p, tdsqlite3_value**, i64);
-
-static int tdsqlite3Fts5StorageIntegrity(Fts5Storage *p);
-
-static int tdsqlite3Fts5StorageStmt(Fts5Storage *p, int eStmt, tdsqlite3_stmt**, char**);
-static void tdsqlite3Fts5StorageStmtRelease(Fts5Storage *p, int eStmt, tdsqlite3_stmt*);
-
-static int tdsqlite3Fts5StorageDocsize(Fts5Storage *p, i64 iRowid, int *aCol);
-static int tdsqlite3Fts5StorageSize(Fts5Storage *p, int iCol, i64 *pnAvg);
-static int tdsqlite3Fts5StorageRowCount(Fts5Storage *p, i64 *pnRow);
-
-static int tdsqlite3Fts5StorageSync(Fts5Storage *p);
-static int tdsqlite3Fts5StorageRollback(Fts5Storage *p);
-
-static int tdsqlite3Fts5StorageConfigValue(
-    Fts5Storage *p, const char*, tdsqlite3_value*, int
-);
-
-static int tdsqlite3Fts5StorageDeleteAll(Fts5Storage *p);
-static int tdsqlite3Fts5StorageRebuild(Fts5Storage *p);
-static int tdsqlite3Fts5StorageOptimize(Fts5Storage *p);
-static int tdsqlite3Fts5StorageMerge(Fts5Storage *p, int nMerge);
-static int tdsqlite3Fts5StorageReset(Fts5Storage *p);
-
-/*
-** End of interface to code in fts5_storage.c.
-**************************************************************************/
-
-
-/**************************************************************************
-** Interface to code in fts5_expr.c. 
-*/
-typedef struct Fts5Expr Fts5Expr;
-typedef struct Fts5ExprNode Fts5ExprNode;
-typedef struct Fts5Parse Fts5Parse;
-typedef struct Fts5Token Fts5Token;
-typedef struct Fts5ExprPhrase Fts5ExprPhrase;
-typedef struct Fts5ExprNearset Fts5ExprNearset;
-
-struct Fts5Token {
-  const char *p;                  /* Token text (not NULL terminated) */
-  int n;                          /* Size of buffer p in bytes */
-};
-
-/* Parse a MATCH expression. */
-static int tdsqlite3Fts5ExprNew(
-  Fts5Config *pConfig, 
-  int iCol,                       /* Column on LHS of MATCH operator */
-  const char *zExpr,
-  Fts5Expr **ppNew, 
-  char **pzErr
-);
-
-/*
-** for(rc = tdsqlite3Fts5ExprFirst(pExpr, pIdx, bDesc);
-**     rc==SQLITE_OK && 0==tdsqlite3Fts5ExprEof(pExpr);
-**     rc = tdsqlite3Fts5ExprNext(pExpr)
-** ){
-**   // The document with rowid iRowid matches the expression!
-**   i64 iRowid = tdsqlite3Fts5ExprRowid(pExpr);
-** }
-*/
-static int tdsqlite3Fts5ExprFirst(Fts5Expr*, Fts5Index *pIdx, i64 iMin, int bDesc);
-static int tdsqlite3Fts5ExprNext(Fts5Expr*, i64 iMax);
-static int tdsqlite3Fts5ExprEof(Fts5Expr*);
-static i64 tdsqlite3Fts5ExprRowid(Fts5Expr*);
-
-static void tdsqlite3Fts5ExprFree(Fts5Expr*);
-static int tdsqlite3Fts5ExprAnd(Fts5Expr **pp1, Fts5Expr *p2);
-
-/* Called during startup to register a UDF with SQLite */
-static int tdsqlite3Fts5ExprInit(Fts5Global*, tdsqlite3*);
-
-static int tdsqlite3Fts5ExprPhraseCount(Fts5Expr*);
-static int tdsqlite3Fts5ExprPhraseSize(Fts5Expr*, int iPhrase);
-static int tdsqlite3Fts5ExprPoslist(Fts5Expr*, int, const u8 **);
-
-typedef struct Fts5PoslistPopulator Fts5PoslistPopulator;
-static Fts5PoslistPopulator *tdsqlite3Fts5ExprClearPoslists(Fts5Expr*, int);
-static int tdsqlite3Fts5ExprPopulatePoslists(
-    Fts5Config*, Fts5Expr*, Fts5PoslistPopulator*, int, const char*, int
-);
-static void tdsqlite3Fts5ExprCheckPoslists(Fts5Expr*, i64);
-
-static int tdsqlite3Fts5ExprClonePhrase(Fts5Expr*, int, Fts5Expr**);
-
-static int tdsqlite3Fts5ExprPhraseCollist(Fts5Expr *, int, const u8 **, int *);
-
-/*******************************************
-** The fts5_expr.c API above this point is used by the other hand-written
-** C code in this module. The interfaces below this point are called by
-** the parser code in fts5parse.y.  */
-
-static void tdsqlite3Fts5ParseError(Fts5Parse *pParse, const char *zFmt, ...);
-
-static Fts5ExprNode *tdsqlite3Fts5ParseNode(
-  Fts5Parse *pParse,
-  int eType,
-  Fts5ExprNode *pLeft,
-  Fts5ExprNode *pRight,
-  Fts5ExprNearset *pNear
-);
-
-static Fts5ExprNode *tdsqlite3Fts5ParseImplicitAnd(
-  Fts5Parse *pParse,
-  Fts5ExprNode *pLeft,
-  Fts5ExprNode *pRight
-);
-
-static Fts5ExprPhrase *tdsqlite3Fts5ParseTerm(
-  Fts5Parse *pParse, 
-  Fts5ExprPhrase *pPhrase, 
-  Fts5Token *pToken,
-  int bPrefix
-);
-
-static void tdsqlite3Fts5ParseSetCaret(Fts5ExprPhrase*);
-
-static Fts5ExprNearset *tdsqlite3Fts5ParseNearset(
-  Fts5Parse*, 
-  Fts5ExprNearset*,
-  Fts5ExprPhrase* 
-);
-
-static Fts5Colset *tdsqlite3Fts5ParseColset(
-  Fts5Parse*, 
-  Fts5Colset*, 
-  Fts5Token *
-);
-
-static void tdsqlite3Fts5ParsePhraseFree(Fts5ExprPhrase*);
-static void tdsqlite3Fts5ParseNearsetFree(Fts5ExprNearset*);
-static void tdsqlite3Fts5ParseNodeFree(Fts5ExprNode*);
-
-static void tdsqlite3Fts5ParseSetDistance(Fts5Parse*, Fts5ExprNearset*, Fts5Token*);
-static void tdsqlite3Fts5ParseSetColset(Fts5Parse*, Fts5ExprNode*, Fts5Colset*);
-static Fts5Colset *tdsqlite3Fts5ParseColsetInvert(Fts5Parse*, Fts5Colset*);
-static void tdsqlite3Fts5ParseFinished(Fts5Parse *pParse, Fts5ExprNode *p);
-static void tdsqlite3Fts5ParseNear(Fts5Parse *pParse, Fts5Token*);
-
-/*
-** End of interface to code in fts5_expr.c.
-**************************************************************************/
-
-
-
-/**************************************************************************
-** Interface to code in fts5_aux.c. 
-*/
-
-static int tdsqlite3Fts5AuxInit(fts5_api*);
-/*
-** End of interface to code in fts5_aux.c.
-**************************************************************************/
-
-/**************************************************************************
-** Interface to code in fts5_tokenizer.c. 
-*/
-
-static int tdsqlite3Fts5TokenizerInit(fts5_api*);
-/*
-** End of interface to code in fts5_tokenizer.c.
-**************************************************************************/
-
-/**************************************************************************
-** Interface to code in fts5_vocab.c. 
-*/
-
-static int tdsqlite3Fts5VocabInit(Fts5Global*, tdsqlite3*);
-
-/*
-** End of interface to code in fts5_vocab.c.
-**************************************************************************/
-
-
-/**************************************************************************
-** Interface to automatically generated code in fts5_unicode2.c. 
-*/
-static int tdsqlite3Fts5UnicodeIsdiacritic(int c);
-static int tdsqlite3Fts5UnicodeFold(int c, int bRemoveDiacritic);
-
-static int tdsqlite3Fts5UnicodeCatParse(const char*, u8*);
-static int tdsqlite3Fts5UnicodeCategory(u32 iCode);
-static void tdsqlite3Fts5UnicodeAscii(u8*, u8*);
-/*
-** End of interface to code in fts5_unicode2.c.
-**************************************************************************/
-
-#endif
-
-#define FTS5_OR                               1
-#define FTS5_AND                              2
-#define FTS5_NOT                              3
-#define FTS5_TERM                             4
-#define FTS5_COLON                            5
-#define FTS5_MINUS                            6
-#define FTS5_LCP                              7
-#define FTS5_RCP                              8
-#define FTS5_STRING                           9
-#define FTS5_LP                              10
-#define FTS5_RP                              11
-#define FTS5_CARET                           12
-#define FTS5_COMMA                           13
-#define FTS5_PLUS                            14
-#define FTS5_STAR                            15
-
-/*
-** 2000-05-29
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** Driver template for the LEMON parser generator.
-**
-** The "lemon" program processes an LALR(1) input grammar file, then uses
-** this template to construct a parser.  The "lemon" program inserts text
-** at each "%%" line.  Also, any "P-a-r-s-e" identifer prefix (without the
-** interstitial "-" characters) contained in this template is changed into
-** the value of the %name directive from the grammar.  Otherwise, the content
-** of this template is copied straight through into the generate parser
-** source file.
-**
-** The following is the concatenation of all %include directives from the
-** input grammar file:
-*/
-/* #include <stdio.h> */
-/* #include <assert.h> */
-/************ Begin %include sections from the grammar ************************/
-
-/* #include "fts5Int.h" */
-/* #include "fts5parse.h" */
-
-/*
-** Disable all error recovery processing in the parser push-down
-** automaton.
-*/
-#define fts5YYNOERRORRECOVERY 1
-
-/*
-** Make fts5yytestcase() the same as testcase()
-*/
-#define fts5yytestcase(X) testcase(X)
-
-/*
-** Indicate that tdsqlite3ParserFree() will never be called with a null
-** pointer.
-*/
-#define fts5YYPARSEFREENOTNULL 1
-
-/*
-** Alternative datatype for the argument to the malloc() routine passed
-** into tdsqlite3ParserAlloc().  The default is size_t.
-*/
-#define fts5YYMALLOCARGTYPE  u64
-
-/**************** End of %include directives **********************************/
-/* These constants specify the various numeric values for terminal symbols
-** in a format understandable to "makeheaders".  This section is blank unless
-** "lemon" is run with the "-m" command-line option.
-***************** Begin makeheaders token definitions *************************/
-/**************** End makeheaders token definitions ***************************/
-
-/* The next sections is a series of control #defines.
-** various aspects of the generated parser.
-**    fts5YYCODETYPE         is the data type used to store the integer codes
-**                       that represent terminal and non-terminal symbols.
-**                       "unsigned char" is used if there are fewer than
-**                       256 symbols.  Larger types otherwise.
-**    fts5YYNOCODE           is a number of type fts5YYCODETYPE that is not used for
-**                       any terminal or nonterminal symbol.
-**    fts5YYFALLBACK         If defined, this indicates that one or more tokens
-**                       (also known as: "terminal symbols") have fall-back
-**                       values which should be used if the original symbol
-**                       would not parse.  This permits keywords to sometimes
-**                       be used as identifiers, for example.
-**    fts5YYACTIONTYPE       is the data type used for "action codes" - numbers
-**                       that indicate what to do in response to the next
-**                       token.
-**    tdsqlite3Fts5ParserFTS5TOKENTYPE     is the data type used for minor type for terminal
-**                       symbols.  Background: A "minor type" is a semantic
-**                       value associated with a terminal or non-terminal
-**                       symbols.  For example, for an "ID" terminal symbol,
-**                       the minor type might be the name of the identifier.
-**                       Each non-terminal can have a different minor type.
-**                       Terminal symbols all have the same minor type, though.
-**                       This macros defines the minor type for terminal 
-**                       symbols.
-**    fts5YYMINORTYPE        is the data type used for all minor types.
-**                       This is typically a union of many types, one of
-**                       which is tdsqlite3Fts5ParserFTS5TOKENTYPE.  The entry in the union
-**                       for terminal symbols is called "fts5yy0".
-**    fts5YYSTACKDEPTH       is the maximum depth of the parser's stack.  If
-**                       zero the stack is dynamically sized using realloc()
-**    tdsqlite3Fts5ParserARG_SDECL     A static variable declaration for the %extra_argument
-**    tdsqlite3Fts5ParserARG_PDECL     A parameter declaration for the %extra_argument
-**    tdsqlite3Fts5ParserARG_PARAM     Code to pass %extra_argument as a subroutine parameter
-**    tdsqlite3Fts5ParserARG_STORE     Code to store %extra_argument into fts5yypParser
-**    tdsqlite3Fts5ParserARG_FETCH     Code to extract %extra_argument from fts5yypParser
-**    tdsqlite3Fts5ParserCTX_*         As tdsqlite3Fts5ParserARG_ except for %extra_context
-**    fts5YYERRORSYMBOL      is the code number of the error symbol.  If not
-**                       defined, then do no error processing.
-**    fts5YYNSTATE           the combined number of states.
-**    fts5YYNRULE            the number of rules in the grammar
-**    fts5YYNFTS5TOKEN           Number of terminal symbols
-**    fts5YY_MAX_SHIFT       Maximum value for shift actions
-**    fts5YY_MIN_SHIFTREDUCE Minimum value for shift-reduce actions
-**    fts5YY_MAX_SHIFTREDUCE Maximum value for shift-reduce actions
-**    fts5YY_ERROR_ACTION    The fts5yy_action[] code for syntax error
-**    fts5YY_ACCEPT_ACTION   The fts5yy_action[] code for accept
-**    fts5YY_NO_ACTION       The fts5yy_action[] code for no-op
-**    fts5YY_MIN_REDUCE      Minimum value for reduce actions
-**    fts5YY_MAX_REDUCE      Maximum value for reduce actions
-*/
-#ifndef INTERFACE
-# define INTERFACE 1
-#endif
-/************* Begin control #defines *****************************************/
-#define fts5YYCODETYPE unsigned char
-#define fts5YYNOCODE 27
-#define fts5YYACTIONTYPE unsigned char
-#define tdsqlite3Fts5ParserFTS5TOKENTYPE Fts5Token
-typedef union {
-  int fts5yyinit;
-  tdsqlite3Fts5ParserFTS5TOKENTYPE fts5yy0;
-  int fts5yy4;
-  Fts5Colset* fts5yy11;
-  Fts5ExprNode* fts5yy24;
-  Fts5ExprNearset* fts5yy46;
-  Fts5ExprPhrase* fts5yy53;
-} fts5YYMINORTYPE;
-#ifndef fts5YYSTACKDEPTH
-#define fts5YYSTACKDEPTH 100
-#endif
-#define tdsqlite3Fts5ParserARG_SDECL Fts5Parse *pParse;
-#define tdsqlite3Fts5ParserARG_PDECL ,Fts5Parse *pParse
-#define tdsqlite3Fts5ParserARG_PARAM ,pParse
-#define tdsqlite3Fts5ParserARG_FETCH Fts5Parse *pParse=fts5yypParser->pParse;
-#define tdsqlite3Fts5ParserARG_STORE fts5yypParser->pParse=pParse;
-#define tdsqlite3Fts5ParserCTX_SDECL
-#define tdsqlite3Fts5ParserCTX_PDECL
-#define tdsqlite3Fts5ParserCTX_PARAM
-#define tdsqlite3Fts5ParserCTX_FETCH
-#define tdsqlite3Fts5ParserCTX_STORE
-#define fts5YYNSTATE             35
-#define fts5YYNRULE              28
-#define fts5YYNRULE_WITH_ACTION  28
-#define fts5YYNFTS5TOKEN             16
-#define fts5YY_MAX_SHIFT         34
-#define fts5YY_MIN_SHIFTREDUCE   52
-#define fts5YY_MAX_SHIFTREDUCE   79
-#define fts5YY_ERROR_ACTION      80
-#define fts5YY_ACCEPT_ACTION     81
-#define fts5YY_NO_ACTION         82
-#define fts5YY_MIN_REDUCE        83
-#define fts5YY_MAX_REDUCE        110
-/************* End control #defines *******************************************/
-#define fts5YY_NLOOKAHEAD ((int)(sizeof(fts5yy_lookahead)/sizeof(fts5yy_lookahead[0])))
-
-/* Define the fts5yytestcase() macro to be a no-op if is not already defined
-** otherwise.
-**
-** Applications can choose to define fts5yytestcase() in the %include section
-** to a macro that can assist in verifying code coverage.  For production
-** code the fts5yytestcase() macro should be turned off.  But it is useful
-** for testing.
-*/
-#ifndef fts5yytestcase
-# define fts5yytestcase(X)
-#endif
-
-
-/* Next are the tables used to determine what action to take based on the
-** current state and lookahead token.  These tables are used to implement
-** functions that take a state number and lookahead value and return an
-** action integer.  
-**
-** Suppose the action integer is N.  Then the action is determined as
-** follows
-**
-**   0 <= N <= fts5YY_MAX_SHIFT             Shift N.  That is, push the lookahead
-**                                      token onto the stack and goto state N.
-**
-**   N between fts5YY_MIN_SHIFTREDUCE       Shift to an arbitrary state then
-**     and fts5YY_MAX_SHIFTREDUCE           reduce by rule N-fts5YY_MIN_SHIFTREDUCE.
-**
-**   N == fts5YY_ERROR_ACTION               A syntax error has occurred.
-**
-**   N == fts5YY_ACCEPT_ACTION              The parser accepts its input.
-**
-**   N == fts5YY_NO_ACTION                  No such action.  Denotes unused
-**                                      slots in the fts5yy_action[] table.
-**
-**   N between fts5YY_MIN_REDUCE            Reduce by rule N-fts5YY_MIN_REDUCE
-**     and fts5YY_MAX_REDUCE
-**
-** The action table is constructed as a single large table named fts5yy_action[].
-** Given state S and lookahead X, the action is computed as either:
-**
-**    (A)   N = fts5yy_action[ fts5yy_shift_ofst[S] + X ]
-**    (B)   N = fts5yy_default[S]
-**
-** The (A) formula is preferred.  The B formula is used instead if
-** fts5yy_lookahead[fts5yy_shift_ofst[S]+X] is not equal to X.
-**
-** The formulas above are for computing the action when the lookahead is
-** a terminal symbol.  If the lookahead is a non-terminal (as occurs after
-** a reduce action) then the fts5yy_reduce_ofst[] array is used in place of
-** the fts5yy_shift_ofst[] array.
-**
-** The following are the tables generated in this section:
-**
-**  fts5yy_action[]        A single table containing all actions.
-**  fts5yy_lookahead[]     A table containing the lookahead for each entry in
-**                     fts5yy_action.  Used to detect hash collisions.
-**  fts5yy_shift_ofst[]    For each state, the offset into fts5yy_action for
-**                     shifting terminals.
-**  fts5yy_reduce_ofst[]   For each state, the offset into fts5yy_action for
-**                     shifting non-terminals after a reduce.
-**  fts5yy_default[]       Default action for each state.
-**
-*********** Begin parsing tables **********************************************/
-#define fts5YY_ACTTAB_COUNT (105)
-static const fts5YYACTIONTYPE fts5yy_action[] = {
- /*     0 */    81,   20,   96,    6,   28,   99,   98,   26,   26,   18,
- /*    10 */    96,    6,   28,   17,   98,   56,   26,   19,   96,    6,
- /*    20 */    28,   14,   98,   14,   26,   31,   92,   96,    6,   28,
- /*    30 */   108,   98,   25,   26,   21,   96,    6,   28,   78,   98,
- /*    40 */    58,   26,   29,   96,    6,   28,  107,   98,   22,   26,
- /*    50 */    24,   16,   12,   11,    1,   13,   13,   24,   16,   23,
- /*    60 */    11,   33,   34,   13,   97,    8,   27,   32,   98,    7,
- /*    70 */    26,    3,    4,    5,    3,    4,    5,    3,   83,    4,
- /*    80 */     5,    3,   63,    5,    3,   62,   12,    2,   86,   13,
- /*    90 */     9,   30,   10,   10,   54,   57,   75,   78,   78,   53,
- /*   100 */    57,   15,   82,   82,   71,
-};
-static const fts5YYCODETYPE fts5yy_lookahead[] = {
- /*     0 */    16,   17,   18,   19,   20,   22,   22,   24,   24,   17,
- /*    10 */    18,   19,   20,    7,   22,    9,   24,   17,   18,   19,
- /*    20 */    20,    9,   22,    9,   24,   13,   17,   18,   19,   20,
- /*    30 */    26,   22,   24,   24,   17,   18,   19,   20,   15,   22,
- /*    40 */     9,   24,   17,   18,   19,   20,   26,   22,   21,   24,
- /*    50 */     6,    7,    9,    9,   10,   12,   12,    6,    7,   21,
- /*    60 */     9,   24,   25,   12,   18,    5,   20,   14,   22,    5,
- /*    70 */    24,    3,    1,    2,    3,    1,    2,    3,    0,    1,
- /*    80 */     2,    3,   11,    2,    3,   11,    9,   10,    5,   12,
- /*    90 */    23,   24,   10,   10,    8,    9,    9,   15,   15,    8,
- /*   100 */     9,    9,   27,   27,   11,   27,   27,   27,   27,   27,
- /*   110 */    27,   27,   27,   27,   27,   27,   27,   27,   27,   27,
- /*   120 */    27,
-};
-#define fts5YY_SHIFT_COUNT    (34)
-#define fts5YY_SHIFT_MIN      (0)
-#define fts5YY_SHIFT_MAX      (93)
-static const unsigned char fts5yy_shift_ofst[] = {
- /*     0 */    44,   44,   44,   44,   44,   44,   51,   77,   43,   12,
- /*    10 */    14,   83,   82,   14,   23,   23,   31,   31,   71,   74,
- /*    20 */    78,   81,   86,   91,    6,   53,   53,   60,   64,   68,
- /*    30 */    53,   87,   92,   53,   93,
-};
-#define fts5YY_REDUCE_COUNT (17)
-#define fts5YY_REDUCE_MIN   (-17)
-#define fts5YY_REDUCE_MAX   (67)
-static const signed char fts5yy_reduce_ofst[] = {
- /*     0 */   -16,   -8,    0,    9,   17,   25,   46,  -17,  -17,   37,
- /*    10 */    67,    4,    4,    8,    4,   20,   27,   38,
-};
-static const fts5YYACTIONTYPE fts5yy_default[] = {
- /*     0 */    80,   80,   80,   80,   80,   80,   95,   80,   80,  105,
- /*    10 */    80,  110,  110,   80,  110,  110,   80,   80,   80,   80,
- /*    20 */    80,   91,   80,   80,   80,  101,  100,   80,   80,   90,
- /*    30 */   103,   80,   80,  104,   80,
-};
-/********** End of lemon-generated parsing tables *****************************/
-
-/* The next table maps tokens (terminal symbols) into fallback tokens.  
-** If a construct like the following:
-** 
-**      %fallback ID X Y Z.
-**
-** appears in the grammar, then ID becomes a fallback token for X, Y,
-** and Z.  Whenever one of the tokens X, Y, or Z is input to the parser
-** but it does not parse, the type of the token is changed to ID and
-** the parse is retried before an error is thrown.
-**
-** This feature can be used, for example, to cause some keywords in a language
-** to revert to identifiers if they keyword does not apply in the context where
-** it appears.
-*/
-#ifdef fts5YYFALLBACK
-static const fts5YYCODETYPE fts5yyFallback[] = {
-};
-#endif /* fts5YYFALLBACK */
-
-/* The following structure represents a single element of the
-** parser's stack.  Information stored includes:
-**
-**   +  The state number for the parser at this level of the stack.
-**
-**   +  The value of the token stored at this level of the stack.
-**      (In other words, the "major" token.)
-**
-**   +  The semantic value stored at this level of the stack.  This is
-**      the information used by the action routines in the grammar.
-**      It is sometimes called the "minor" token.
-**
-** After the "shift" half of a SHIFTREDUCE action, the stateno field
-** actually contains the reduce action for the second half of the
-** SHIFTREDUCE.
-*/
-struct fts5yyStackEntry {
-  fts5YYACTIONTYPE stateno;  /* The state-number, or reduce action in SHIFTREDUCE */
-  fts5YYCODETYPE major;      /* The major token value.  This is the code
-                         ** number for the token at this stack level */
-  fts5YYMINORTYPE minor;     /* The user-supplied minor token value.  This
-                         ** is the value of the token  */
-};
-typedef struct fts5yyStackEntry fts5yyStackEntry;
-
-/* The state of the parser is completely contained in an instance of
-** the following structure */
-struct fts5yyParser {
-  fts5yyStackEntry *fts5yytos;          /* Pointer to top element of the stack */
-#ifdef fts5YYTRACKMAXSTACKDEPTH
-  int fts5yyhwm;                    /* High-water mark of the stack */
-#endif
-#ifndef fts5YYNOERRORRECOVERY
-  int fts5yyerrcnt;                 /* Shifts left before out of the error */
-#endif
-  tdsqlite3Fts5ParserARG_SDECL                /* A place to hold %extra_argument */
-  tdsqlite3Fts5ParserCTX_SDECL                /* A place to hold %extra_context */
-#if fts5YYSTACKDEPTH<=0
-  int fts5yystksz;                  /* Current side of the stack */
-  fts5yyStackEntry *fts5yystack;        /* The parser's stack */
-  fts5yyStackEntry fts5yystk0;          /* First stack entry */
-#else
-  fts5yyStackEntry fts5yystack[fts5YYSTACKDEPTH];  /* The parser's stack */
-  fts5yyStackEntry *fts5yystackEnd;            /* Last entry in the stack */
-#endif
-};
-typedef struct fts5yyParser fts5yyParser;
-
-#ifndef NDEBUG
-/* #include <stdio.h> */
-static FILE *fts5yyTraceFILE = 0;
-static char *fts5yyTracePrompt = 0;
-#endif /* NDEBUG */
-
-#ifndef NDEBUG
-/* 
-** Turn parser tracing on by giving a stream to which to write the trace
-** and a prompt to preface each trace message.  Tracing is turned off
-** by making either argument NULL 
-**
-** Inputs:
-** <ul>
-** <li> A FILE* to which trace output should be written.
-**      If NULL, then tracing is turned off.
-** <li> A prefix string written at the beginning of every
-**      line of trace output.  If NULL, then tracing is
-**      turned off.
-** </ul>
-**
-** Outputs:
-** None.
-*/
-static void tdsqlite3Fts5ParserTrace(FILE *TraceFILE, char *zTracePrompt){
-  fts5yyTraceFILE = TraceFILE;
-  fts5yyTracePrompt = zTracePrompt;
-  if( fts5yyTraceFILE==0 ) fts5yyTracePrompt = 0;
-  else if( fts5yyTracePrompt==0 ) fts5yyTraceFILE = 0;
-}
-#endif /* NDEBUG */
-
-#if defined(fts5YYCOVERAGE) || !defined(NDEBUG)
-/* For tracing shifts, the names of all terminals and nonterminals
-** are required.  The following table supplies these names */
-static const char *const fts5yyTokenName[] = { 
-  /*    0 */ "$",
-  /*    1 */ "OR",
-  /*    2 */ "AND",
-  /*    3 */ "NOT",
-  /*    4 */ "TERM",
-  /*    5 */ "COLON",
-  /*    6 */ "MINUS",
-  /*    7 */ "LCP",
-  /*    8 */ "RCP",
-  /*    9 */ "STRING",
-  /*   10 */ "LP",
-  /*   11 */ "RP",
-  /*   12 */ "CARET",
-  /*   13 */ "COMMA",
-  /*   14 */ "PLUS",
-  /*   15 */ "STAR",
-  /*   16 */ "input",
-  /*   17 */ "expr",
-  /*   18 */ "cnearset",
-  /*   19 */ "exprlist",
-  /*   20 */ "colset",
-  /*   21 */ "colsetlist",
-  /*   22 */ "nearset",
-  /*   23 */ "nearphrases",
-  /*   24 */ "phrase",
-  /*   25 */ "neardist_opt",
-  /*   26 */ "star_opt",
-};
-#endif /* defined(fts5YYCOVERAGE) || !defined(NDEBUG) */
-
-#ifndef NDEBUG
-/* For tracing reduce actions, the names of all rules are required.
-*/
-static const char *const fts5yyRuleName[] = {
- /*   0 */ "input ::= expr",
- /*   1 */ "colset ::= MINUS LCP colsetlist RCP",
- /*   2 */ "colset ::= LCP colsetlist RCP",
- /*   3 */ "colset ::= STRING",
- /*   4 */ "colset ::= MINUS STRING",
- /*   5 */ "colsetlist ::= colsetlist STRING",
- /*   6 */ "colsetlist ::= STRING",
- /*   7 */ "expr ::= expr AND expr",
- /*   8 */ "expr ::= expr OR expr",
- /*   9 */ "expr ::= expr NOT expr",
- /*  10 */ "expr ::= colset COLON LP expr RP",
- /*  11 */ "expr ::= LP expr RP",
- /*  12 */ "expr ::= exprlist",
- /*  13 */ "exprlist ::= cnearset",
- /*  14 */ "exprlist ::= exprlist cnearset",
- /*  15 */ "cnearset ::= nearset",
- /*  16 */ "cnearset ::= colset COLON nearset",
- /*  17 */ "nearset ::= phrase",
- /*  18 */ "nearset ::= CARET phrase",
- /*  19 */ "nearset ::= STRING LP nearphrases neardist_opt RP",
- /*  20 */ "nearphrases ::= phrase",
- /*  21 */ "nearphrases ::= nearphrases phrase",
- /*  22 */ "neardist_opt ::=",
- /*  23 */ "neardist_opt ::= COMMA STRING",
- /*  24 */ "phrase ::= phrase PLUS STRING star_opt",
- /*  25 */ "phrase ::= STRING star_opt",
- /*  26 */ "star_opt ::= STAR",
- /*  27 */ "star_opt ::=",
-};
-#endif /* NDEBUG */
-
-
-#if fts5YYSTACKDEPTH<=0
-/*
-** Try to increase the size of the parser stack.  Return the number
-** of errors.  Return 0 on success.
-*/
-static int fts5yyGrowStack(fts5yyParser *p){
-  int newSize;
-  int idx;
-  fts5yyStackEntry *pNew;
-
-  newSize = p->fts5yystksz*2 + 100;
-  idx = p->fts5yytos ? (int)(p->fts5yytos - p->fts5yystack) : 0;
-  if( p->fts5yystack==&p->fts5yystk0 ){
-    pNew = malloc(newSize*sizeof(pNew[0]));
-    if( pNew ) pNew[0] = p->fts5yystk0;
-  }else{
-    pNew = realloc(p->fts5yystack, newSize*sizeof(pNew[0]));
-  }
-  if( pNew ){
-    p->fts5yystack = pNew;
-    p->fts5yytos = &p->fts5yystack[idx];
-#ifndef NDEBUG
-    if( fts5yyTraceFILE ){
-      fprintf(fts5yyTraceFILE,"%sStack grows from %d to %d entries.\n",
-              fts5yyTracePrompt, p->fts5yystksz, newSize);
-    }
-#endif
-    p->fts5yystksz = newSize;
-  }
-  return pNew==0; 
-}
-#endif
-
-/* Datatype of the argument to the memory allocated passed as the
-** second argument to tdsqlite3Fts5ParserAlloc() below.  This can be changed by
-** putting an appropriate #define in the %include section of the input
-** grammar.
-*/
-#ifndef fts5YYMALLOCARGTYPE
-# define fts5YYMALLOCARGTYPE size_t
-#endif
-
-/* Initialize a new parser that has already been allocated.
-*/
-static void tdsqlite3Fts5ParserInit(void *fts5yypRawParser tdsqlite3Fts5ParserCTX_PDECL){
-  fts5yyParser *fts5yypParser = (fts5yyParser*)fts5yypRawParser;
-  tdsqlite3Fts5ParserCTX_STORE
-#ifdef fts5YYTRACKMAXSTACKDEPTH
-  fts5yypParser->fts5yyhwm = 0;
-#endif
-#if fts5YYSTACKDEPTH<=0
-  fts5yypParser->fts5yytos = NULL;
-  fts5yypParser->fts5yystack = NULL;
-  fts5yypParser->fts5yystksz = 0;
-  if( fts5yyGrowStack(fts5yypParser) ){
-    fts5yypParser->fts5yystack = &fts5yypParser->fts5yystk0;
-    fts5yypParser->fts5yystksz = 1;
-  }
-#endif
-#ifndef fts5YYNOERRORRECOVERY
-  fts5yypParser->fts5yyerrcnt = -1;
-#endif
-  fts5yypParser->fts5yytos = fts5yypParser->fts5yystack;
-  fts5yypParser->fts5yystack[0].stateno = 0;
-  fts5yypParser->fts5yystack[0].major = 0;
-#if fts5YYSTACKDEPTH>0
-  fts5yypParser->fts5yystackEnd = &fts5yypParser->fts5yystack[fts5YYSTACKDEPTH-1];
-#endif
-}
-
-#ifndef tdsqlite3Fts5Parser_ENGINEALWAYSONSTACK
-/* 
-** This function allocates a new parser.
-** The only argument is a pointer to a function which works like
-** malloc.
-**
-** Inputs:
-** A pointer to the function used to allocate memory.
-**
-** Outputs:
-** A pointer to a parser.  This pointer is used in subsequent calls
-** to tdsqlite3Fts5Parser and tdsqlite3Fts5ParserFree.
-*/
-static void *tdsqlite3Fts5ParserAlloc(void *(*mallocProc)(fts5YYMALLOCARGTYPE) tdsqlite3Fts5ParserCTX_PDECL){
-  fts5yyParser *fts5yypParser;
-  fts5yypParser = (fts5yyParser*)(*mallocProc)( (fts5YYMALLOCARGTYPE)sizeof(fts5yyParser) );
-  if( fts5yypParser ){
-    tdsqlite3Fts5ParserCTX_STORE
-    tdsqlite3Fts5ParserInit(fts5yypParser tdsqlite3Fts5ParserCTX_PARAM);
-  }
-  return (void*)fts5yypParser;
-}
-#endif /* tdsqlite3Fts5Parser_ENGINEALWAYSONSTACK */
-
-
-/* The following function deletes the "minor type" or semantic value
-** associated with a symbol.  The symbol can be either a terminal
-** or nonterminal. "fts5yymajor" is the symbol code, and "fts5yypminor" is
-** a pointer to the value to be deleted.  The code used to do the 
-** deletions is derived from the %destructor and/or %token_destructor
-** directives of the input grammar.
-*/
-static void fts5yy_destructor(
-  fts5yyParser *fts5yypParser,    /* The parser */
-  fts5YYCODETYPE fts5yymajor,     /* Type code for object to destroy */
-  fts5YYMINORTYPE *fts5yypminor   /* The object to be destroyed */
-){
-  tdsqlite3Fts5ParserARG_FETCH
-  tdsqlite3Fts5ParserCTX_FETCH
-  switch( fts5yymajor ){
-    /* Here is inserted the actions which take place when a
-    ** terminal or non-terminal is destroyed.  This can happen
-    ** when the symbol is popped from the stack during a
-    ** reduce or during error processing or when a parser is 
-    ** being destroyed before it is finished parsing.
-    **
-    ** Note: during a reduce, the only symbols destroyed are those
-    ** which appear on the RHS of the rule, but which are *not* used
-    ** inside the C code.
-    */
-/********* Begin destructor definitions ***************************************/
-    case 16: /* input */
-{
- (void)pParse; 
-}
-      break;
-    case 17: /* expr */
-    case 18: /* cnearset */
-    case 19: /* exprlist */
-{
- tdsqlite3Fts5ParseNodeFree((fts5yypminor->fts5yy24)); 
-}
-      break;
-    case 20: /* colset */
-    case 21: /* colsetlist */
-{
- tdsqlite3_free((fts5yypminor->fts5yy11)); 
-}
-      break;
-    case 22: /* nearset */
-    case 23: /* nearphrases */
-{
- tdsqlite3Fts5ParseNearsetFree((fts5yypminor->fts5yy46)); 
-}
-      break;
-    case 24: /* phrase */
-{
- tdsqlite3Fts5ParsePhraseFree((fts5yypminor->fts5yy53)); 
-}
-      break;
-/********* End destructor definitions *****************************************/
-    default:  break;   /* If no destructor action specified: do nothing */
-  }
-}
-
-/*
-** Pop the parser's stack once.
-**
-** If there is a destructor routine associated with the token which
-** is popped from the stack, then call it.
-*/
-static void fts5yy_pop_parser_stack(fts5yyParser *pParser){
-  fts5yyStackEntry *fts5yytos;
-  assert( pParser->fts5yytos!=0 );
-  assert( pParser->fts5yytos > pParser->fts5yystack );
-  fts5yytos = pParser->fts5yytos--;
-#ifndef NDEBUG
-  if( fts5yyTraceFILE ){
-    fprintf(fts5yyTraceFILE,"%sPopping %s\n",
-      fts5yyTracePrompt,
-      fts5yyTokenName[fts5yytos->major]);
-  }
-#endif
-  fts5yy_destructor(pParser, fts5yytos->major, &fts5yytos->minor);
-}
-
-/*
-** Clear all secondary memory allocations from the parser
-*/
-static void tdsqlite3Fts5ParserFinalize(void *p){
-  fts5yyParser *pParser = (fts5yyParser*)p;
-  while( pParser->fts5yytos>pParser->fts5yystack ) fts5yy_pop_parser_stack(pParser);
-#if fts5YYSTACKDEPTH<=0
-  if( pParser->fts5yystack!=&pParser->fts5yystk0 ) free(pParser->fts5yystack);
-#endif
-}
-
-#ifndef tdsqlite3Fts5Parser_ENGINEALWAYSONSTACK
-/* 
-** Deallocate and destroy a parser.  Destructors are called for
-** all stack elements before shutting the parser down.
-**
-** If the fts5YYPARSEFREENEVERNULL macro exists (for example because it
-** is defined in a %include section of the input grammar) then it is
-** assumed that the input pointer is never NULL.
-*/
-static void tdsqlite3Fts5ParserFree(
-  void *p,                    /* The parser to be deleted */
-  void (*freeProc)(void*)     /* Function used to reclaim memory */
-){
-#ifndef fts5YYPARSEFREENEVERNULL
-  if( p==0 ) return;
-#endif
-  tdsqlite3Fts5ParserFinalize(p);
-  (*freeProc)(p);
-}
-#endif /* tdsqlite3Fts5Parser_ENGINEALWAYSONSTACK */
-
-/*
-** Return the peak depth of the stack for a parser.
-*/
-#ifdef fts5YYTRACKMAXSTACKDEPTH
-static int tdsqlite3Fts5ParserStackPeak(void *p){
-  fts5yyParser *pParser = (fts5yyParser*)p;
-  return pParser->fts5yyhwm;
-}
-#endif
-
-/* This array of booleans keeps track of the parser statement
-** coverage.  The element fts5yycoverage[X][Y] is set when the parser
-** is in state X and has a lookahead token Y.  In a well-tested
-** systems, every element of this matrix should end up being set.
-*/
-#if defined(fts5YYCOVERAGE)
-static unsigned char fts5yycoverage[fts5YYNSTATE][fts5YYNFTS5TOKEN];
-#endif
-
-/*
-** Write into out a description of every state/lookahead combination that
-**
-**   (1)  has not been used by the parser, and
-**   (2)  is not a syntax error.
-**
-** Return the number of missed state/lookahead combinations.
-*/
-#if defined(fts5YYCOVERAGE)
-static int tdsqlite3Fts5ParserCoverage(FILE *out){
-  int stateno, iLookAhead, i;
-  int nMissed = 0;
-  for(stateno=0; stateno<fts5YYNSTATE; stateno++){
-    i = fts5yy_shift_ofst[stateno];
-    for(iLookAhead=0; iLookAhead<fts5YYNFTS5TOKEN; iLookAhead++){
-      if( fts5yy_lookahead[i+iLookAhead]!=iLookAhead ) continue;
-      if( fts5yycoverage[stateno][iLookAhead]==0 ) nMissed++;
-      if( out ){
-        fprintf(out,"State %d lookahead %s %s\n", stateno,
-                fts5yyTokenName[iLookAhead],
-                fts5yycoverage[stateno][iLookAhead] ? "ok" : "missed");
-      }
-    }
-  }
-  return nMissed;
-}
-#endif
-
-/*
-** Find the appropriate action for a parser given the terminal
-** look-ahead token iLookAhead.
-*/
-static fts5YYACTIONTYPE fts5yy_find_shift_action(
-  fts5YYCODETYPE iLookAhead,    /* The look-ahead token */
-  fts5YYACTIONTYPE stateno      /* Current state number */
-){
-  int i;
-
-  if( stateno>fts5YY_MAX_SHIFT ) return stateno;
-  assert( stateno <= fts5YY_SHIFT_COUNT );
-#if defined(fts5YYCOVERAGE)
-  fts5yycoverage[stateno][iLookAhead] = 1;
-#endif
-  do{
-    i = fts5yy_shift_ofst[stateno];
-    assert( i>=0 );
-    assert( i<=fts5YY_ACTTAB_COUNT );
-    assert( i+fts5YYNFTS5TOKEN<=(int)fts5YY_NLOOKAHEAD );
-    assert( iLookAhead!=fts5YYNOCODE );
-    assert( iLookAhead < fts5YYNFTS5TOKEN );
-    i += iLookAhead;
-    assert( i<(int)fts5YY_NLOOKAHEAD );
-    if( fts5yy_lookahead[i]!=iLookAhead ){
-#ifdef fts5YYFALLBACK
-      fts5YYCODETYPE iFallback;            /* Fallback token */
-      assert( iLookAhead<sizeof(fts5yyFallback)/sizeof(fts5yyFallback[0]) );
-      iFallback = fts5yyFallback[iLookAhead];
-      if( iFallback!=0 ){
-#ifndef NDEBUG
-        if( fts5yyTraceFILE ){
-          fprintf(fts5yyTraceFILE, "%sFALLBACK %s => %s\n",
-             fts5yyTracePrompt, fts5yyTokenName[iLookAhead], fts5yyTokenName[iFallback]);
-        }
-#endif
-        assert( fts5yyFallback[iFallback]==0 ); /* Fallback loop must terminate */
-        iLookAhead = iFallback;
-        continue;
-      }
-#endif
-#ifdef fts5YYWILDCARD
-      {
-        int j = i - iLookAhead + fts5YYWILDCARD;
-        assert( j<(int)(sizeof(fts5yy_lookahead)/sizeof(fts5yy_lookahead[0])) );
-        if( fts5yy_lookahead[j]==fts5YYWILDCARD && iLookAhead>0 ){
-#ifndef NDEBUG
-          if( fts5yyTraceFILE ){
-            fprintf(fts5yyTraceFILE, "%sWILDCARD %s => %s\n",
-               fts5yyTracePrompt, fts5yyTokenName[iLookAhead],
-               fts5yyTokenName[fts5YYWILDCARD]);
-          }
-#endif /* NDEBUG */
-          return fts5yy_action[j];
-        }
-      }
-#endif /* fts5YYWILDCARD */
-      return fts5yy_default[stateno];
-    }else{
-      assert( i>=0 && i<sizeof(fts5yy_action)/sizeof(fts5yy_action[0]) );
-      return fts5yy_action[i];
-    }
-  }while(1);
-}
-
-/*
-** Find the appropriate action for a parser given the non-terminal
-** look-ahead token iLookAhead.
-*/
-static fts5YYACTIONTYPE fts5yy_find_reduce_action(
-  fts5YYACTIONTYPE stateno,     /* Current state number */
-  fts5YYCODETYPE iLookAhead     /* The look-ahead token */
-){
-  int i;
-#ifdef fts5YYERRORSYMBOL
-  if( stateno>fts5YY_REDUCE_COUNT ){
-    return fts5yy_default[stateno];
-  }
-#else
-  assert( stateno<=fts5YY_REDUCE_COUNT );
-#endif
-  i = fts5yy_reduce_ofst[stateno];
-  assert( iLookAhead!=fts5YYNOCODE );
-  i += iLookAhead;
-#ifdef fts5YYERRORSYMBOL
-  if( i<0 || i>=fts5YY_ACTTAB_COUNT || fts5yy_lookahead[i]!=iLookAhead ){
-    return fts5yy_default[stateno];
-  }
-#else
-  assert( i>=0 && i<fts5YY_ACTTAB_COUNT );
-  assert( fts5yy_lookahead[i]==iLookAhead );
-#endif
-  return fts5yy_action[i];
-}
-
-/*
-** The following routine is called if the stack overflows.
-*/
-static void fts5yyStackOverflow(fts5yyParser *fts5yypParser){
-   tdsqlite3Fts5ParserARG_FETCH
-   tdsqlite3Fts5ParserCTX_FETCH
-#ifndef NDEBUG
-   if( fts5yyTraceFILE ){
-     fprintf(fts5yyTraceFILE,"%sStack Overflow!\n",fts5yyTracePrompt);
-   }
-#endif
-   while( fts5yypParser->fts5yytos>fts5yypParser->fts5yystack ) fts5yy_pop_parser_stack(fts5yypParser);
-   /* Here code is inserted which will execute if the parser
-   ** stack every overflows */
-/******** Begin %stack_overflow code ******************************************/
-
-  tdsqlite3Fts5ParseError(pParse, "fts5: parser stack overflow");
-/******** End %stack_overflow code ********************************************/
-   tdsqlite3Fts5ParserARG_STORE /* Suppress warning about unused %extra_argument var */
-   tdsqlite3Fts5ParserCTX_STORE
-}
-
-/*
-** Print tracing information for a SHIFT action
-*/
-#ifndef NDEBUG
-static void fts5yyTraceShift(fts5yyParser *fts5yypParser, int fts5yyNewState, const char *zTag){
-  if( fts5yyTraceFILE ){
-    if( fts5yyNewState<fts5YYNSTATE ){
-      fprintf(fts5yyTraceFILE,"%s%s '%s', go to state %d\n",
-         fts5yyTracePrompt, zTag, fts5yyTokenName[fts5yypParser->fts5yytos->major],
-         fts5yyNewState);
-    }else{
-      fprintf(fts5yyTraceFILE,"%s%s '%s', pending reduce %d\n",
-         fts5yyTracePrompt, zTag, fts5yyTokenName[fts5yypParser->fts5yytos->major],
-         fts5yyNewState - fts5YY_MIN_REDUCE);
-    }
-  }
-}
-#else
-# define fts5yyTraceShift(X,Y,Z)
-#endif
-
-/*
-** Perform a shift action.
-*/
-static void fts5yy_shift(
-  fts5yyParser *fts5yypParser,          /* The parser to be shifted */
-  fts5YYACTIONTYPE fts5yyNewState,      /* The new state to shift in */
-  fts5YYCODETYPE fts5yyMajor,           /* The major token to shift in */
-  tdsqlite3Fts5ParserFTS5TOKENTYPE fts5yyMinor        /* The minor token to shift in */
-){
-  fts5yyStackEntry *fts5yytos;
-  fts5yypParser->fts5yytos++;
-#ifdef fts5YYTRACKMAXSTACKDEPTH
-  if( (int)(fts5yypParser->fts5yytos - fts5yypParser->fts5yystack)>fts5yypParser->fts5yyhwm ){
-    fts5yypParser->fts5yyhwm++;
-    assert( fts5yypParser->fts5yyhwm == (int)(fts5yypParser->fts5yytos - fts5yypParser->fts5yystack) );
-  }
-#endif
-#if fts5YYSTACKDEPTH>0 
-  if( fts5yypParser->fts5yytos>fts5yypParser->fts5yystackEnd ){
-    fts5yypParser->fts5yytos--;
-    fts5yyStackOverflow(fts5yypParser);
-    return;
-  }
-#else
-  if( fts5yypParser->fts5yytos>=&fts5yypParser->fts5yystack[fts5yypParser->fts5yystksz] ){
-    if( fts5yyGrowStack(fts5yypParser) ){
-      fts5yypParser->fts5yytos--;
-      fts5yyStackOverflow(fts5yypParser);
-      return;
-    }
-  }
-#endif
-  if( fts5yyNewState > fts5YY_MAX_SHIFT ){
-    fts5yyNewState += fts5YY_MIN_REDUCE - fts5YY_MIN_SHIFTREDUCE;
-  }
-  fts5yytos = fts5yypParser->fts5yytos;
-  fts5yytos->stateno = fts5yyNewState;
-  fts5yytos->major = fts5yyMajor;
-  fts5yytos->minor.fts5yy0 = fts5yyMinor;
-  fts5yyTraceShift(fts5yypParser, fts5yyNewState, "Shift");
-}
-
-/* For rule J, fts5yyRuleInfoLhs[J] contains the symbol on the left-hand side
-** of that rule */
-static const fts5YYCODETYPE fts5yyRuleInfoLhs[] = {
-    16,  /* (0) input ::= expr */
-    20,  /* (1) colset ::= MINUS LCP colsetlist RCP */
-    20,  /* (2) colset ::= LCP colsetlist RCP */
-    20,  /* (3) colset ::= STRING */
-    20,  /* (4) colset ::= MINUS STRING */
-    21,  /* (5) colsetlist ::= colsetlist STRING */
-    21,  /* (6) colsetlist ::= STRING */
-    17,  /* (7) expr ::= expr AND expr */
-    17,  /* (8) expr ::= expr OR expr */
-    17,  /* (9) expr ::= expr NOT expr */
-    17,  /* (10) expr ::= colset COLON LP expr RP */
-    17,  /* (11) expr ::= LP expr RP */
-    17,  /* (12) expr ::= exprlist */
-    19,  /* (13) exprlist ::= cnearset */
-    19,  /* (14) exprlist ::= exprlist cnearset */
-    18,  /* (15) cnearset ::= nearset */
-    18,  /* (16) cnearset ::= colset COLON nearset */
-    22,  /* (17) nearset ::= phrase */
-    22,  /* (18) nearset ::= CARET phrase */
-    22,  /* (19) nearset ::= STRING LP nearphrases neardist_opt RP */
-    23,  /* (20) nearphrases ::= phrase */
-    23,  /* (21) nearphrases ::= nearphrases phrase */
-    25,  /* (22) neardist_opt ::= */
-    25,  /* (23) neardist_opt ::= COMMA STRING */
-    24,  /* (24) phrase ::= phrase PLUS STRING star_opt */
-    24,  /* (25) phrase ::= STRING star_opt */
-    26,  /* (26) star_opt ::= STAR */
-    26,  /* (27) star_opt ::= */
-};
-
-/* For rule J, fts5yyRuleInfoNRhs[J] contains the negative of the number
-** of symbols on the right-hand side of that rule. */
-static const signed char fts5yyRuleInfoNRhs[] = {
-   -1,  /* (0) input ::= expr */
-   -4,  /* (1) colset ::= MINUS LCP colsetlist RCP */
-   -3,  /* (2) colset ::= LCP colsetlist RCP */
-   -1,  /* (3) colset ::= STRING */
-   -2,  /* (4) colset ::= MINUS STRING */
-   -2,  /* (5) colsetlist ::= colsetlist STRING */
-   -1,  /* (6) colsetlist ::= STRING */
-   -3,  /* (7) expr ::= expr AND expr */
-   -3,  /* (8) expr ::= expr OR expr */
-   -3,  /* (9) expr ::= expr NOT expr */
-   -5,  /* (10) expr ::= colset COLON LP expr RP */
-   -3,  /* (11) expr ::= LP expr RP */
-   -1,  /* (12) expr ::= exprlist */
-   -1,  /* (13) exprlist ::= cnearset */
-   -2,  /* (14) exprlist ::= exprlist cnearset */
-   -1,  /* (15) cnearset ::= nearset */
-   -3,  /* (16) cnearset ::= colset COLON nearset */
-   -1,  /* (17) nearset ::= phrase */
-   -2,  /* (18) nearset ::= CARET phrase */
-   -5,  /* (19) nearset ::= STRING LP nearphrases neardist_opt RP */
-   -1,  /* (20) nearphrases ::= phrase */
-   -2,  /* (21) nearphrases ::= nearphrases phrase */
-    0,  /* (22) neardist_opt ::= */
-   -2,  /* (23) neardist_opt ::= COMMA STRING */
-   -4,  /* (24) phrase ::= phrase PLUS STRING star_opt */
-   -2,  /* (25) phrase ::= STRING star_opt */
-   -1,  /* (26) star_opt ::= STAR */
-    0,  /* (27) star_opt ::= */
-};
-
-static void fts5yy_accept(fts5yyParser*);  /* Forward Declaration */
-
-/*
-** Perform a reduce action and the shift that must immediately
-** follow the reduce.
-**
-** The fts5yyLookahead and fts5yyLookaheadToken parameters provide reduce actions
-** access to the lookahead token (if any).  The fts5yyLookahead will be fts5YYNOCODE
-** if the lookahead token has already been consumed.  As this procedure is
-** only called from one place, optimizing compilers will in-line it, which
-** means that the extra parameters have no performance impact.
-*/
-static fts5YYACTIONTYPE fts5yy_reduce(
-  fts5yyParser *fts5yypParser,         /* The parser */
-  unsigned int fts5yyruleno,       /* Number of the rule by which to reduce */
-  int fts5yyLookahead,             /* Lookahead token, or fts5YYNOCODE if none */
-  tdsqlite3Fts5ParserFTS5TOKENTYPE fts5yyLookaheadToken  /* Value of the lookahead token */
-  tdsqlite3Fts5ParserCTX_PDECL                   /* %extra_context */
-){
-  int fts5yygoto;                     /* The next state */
-  fts5YYACTIONTYPE fts5yyact;             /* The next action */
-  fts5yyStackEntry *fts5yymsp;            /* The top of the parser's stack */
-  int fts5yysize;                     /* Amount to pop the stack */
-  tdsqlite3Fts5ParserARG_FETCH
-  (void)fts5yyLookahead;
-  (void)fts5yyLookaheadToken;
-  fts5yymsp = fts5yypParser->fts5yytos;
-#ifndef NDEBUG
-  if( fts5yyTraceFILE && fts5yyruleno<(int)(sizeof(fts5yyRuleName)/sizeof(fts5yyRuleName[0])) ){
-    fts5yysize = fts5yyRuleInfoNRhs[fts5yyruleno];
-    if( fts5yysize ){
-      fprintf(fts5yyTraceFILE, "%sReduce %d [%s]%s, pop back to state %d.\n",
-        fts5yyTracePrompt,
-        fts5yyruleno, fts5yyRuleName[fts5yyruleno],
-        fts5yyruleno<fts5YYNRULE_WITH_ACTION ? "" : " without external action",
-        fts5yymsp[fts5yysize].stateno);
-    }else{
-      fprintf(fts5yyTraceFILE, "%sReduce %d [%s]%s.\n",
-        fts5yyTracePrompt, fts5yyruleno, fts5yyRuleName[fts5yyruleno],
-        fts5yyruleno<fts5YYNRULE_WITH_ACTION ? "" : " without external action");
-    }
-  }
-#endif /* NDEBUG */
-
-  /* Check that the stack is large enough to grow by a single entry
-  ** if the RHS of the rule is empty.  This ensures that there is room
-  ** enough on the stack to push the LHS value */
-  if( fts5yyRuleInfoNRhs[fts5yyruleno]==0 ){
-#ifdef fts5YYTRACKMAXSTACKDEPTH
-    if( (int)(fts5yypParser->fts5yytos - fts5yypParser->fts5yystack)>fts5yypParser->fts5yyhwm ){
-      fts5yypParser->fts5yyhwm++;
-      assert( fts5yypParser->fts5yyhwm == (int)(fts5yypParser->fts5yytos - fts5yypParser->fts5yystack));
-    }
-#endif
-#if fts5YYSTACKDEPTH>0 
-    if( fts5yypParser->fts5yytos>=fts5yypParser->fts5yystackEnd ){
-      fts5yyStackOverflow(fts5yypParser);
-      /* The call to fts5yyStackOverflow() above pops the stack until it is
-      ** empty, causing the main parser loop to exit.  So the return value
-      ** is never used and does not matter. */
-      return 0;
-    }
-#else
-    if( fts5yypParser->fts5yytos>=&fts5yypParser->fts5yystack[fts5yypParser->fts5yystksz-1] ){
-      if( fts5yyGrowStack(fts5yypParser) ){
-        fts5yyStackOverflow(fts5yypParser);
-        /* The call to fts5yyStackOverflow() above pops the stack until it is
-        ** empty, causing the main parser loop to exit.  So the return value
-        ** is never used and does not matter. */
-        return 0;
-      }
-      fts5yymsp = fts5yypParser->fts5yytos;
-    }
-#endif
-  }
-
-  switch( fts5yyruleno ){
-  /* Beginning here are the reduction cases.  A typical example
-  ** follows:
-  **   case 0:
-  **  #line <lineno> <grammarfile>
-  **     { ... }           // User supplied code
-  **  #line <lineno> <thisfile>
-  **     break;
-  */
-/********** Begin reduce actions **********************************************/
-        fts5YYMINORTYPE fts5yylhsminor;
-      case 0: /* input ::= expr */
-{ tdsqlite3Fts5ParseFinished(pParse, fts5yymsp[0].minor.fts5yy24); }
-        break;
-      case 1: /* colset ::= MINUS LCP colsetlist RCP */
-{ 
-    fts5yymsp[-3].minor.fts5yy11 = tdsqlite3Fts5ParseColsetInvert(pParse, fts5yymsp[-1].minor.fts5yy11);
-}
-        break;
-      case 2: /* colset ::= LCP colsetlist RCP */
-{ fts5yymsp[-2].minor.fts5yy11 = fts5yymsp[-1].minor.fts5yy11; }
-        break;
-      case 3: /* colset ::= STRING */
-{
-  fts5yylhsminor.fts5yy11 = tdsqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0);
-}
-  fts5yymsp[0].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
-        break;
-      case 4: /* colset ::= MINUS STRING */
-{
-  fts5yymsp[-1].minor.fts5yy11 = tdsqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0);
-  fts5yymsp[-1].minor.fts5yy11 = tdsqlite3Fts5ParseColsetInvert(pParse, fts5yymsp[-1].minor.fts5yy11);
-}
-        break;
-      case 5: /* colsetlist ::= colsetlist STRING */
-{ 
-  fts5yylhsminor.fts5yy11 = tdsqlite3Fts5ParseColset(pParse, fts5yymsp[-1].minor.fts5yy11, &fts5yymsp[0].minor.fts5yy0); }
-  fts5yymsp[-1].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
-        break;
-      case 6: /* colsetlist ::= STRING */
-{ 
-  fts5yylhsminor.fts5yy11 = tdsqlite3Fts5ParseColset(pParse, 0, &fts5yymsp[0].minor.fts5yy0); 
-}
-  fts5yymsp[0].minor.fts5yy11 = fts5yylhsminor.fts5yy11;
-        break;
-      case 7: /* expr ::= expr AND expr */
-{
-  fts5yylhsminor.fts5yy24 = tdsqlite3Fts5ParseNode(pParse, FTS5_AND, fts5yymsp[-2].minor.fts5yy24, fts5yymsp[0].minor.fts5yy24, 0);
-}
-  fts5yymsp[-2].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
-        break;
-      case 8: /* expr ::= expr OR expr */
-{
-  fts5yylhsminor.fts5yy24 = tdsqlite3Fts5ParseNode(pParse, FTS5_OR, fts5yymsp[-2].minor.fts5yy24, fts5yymsp[0].minor.fts5yy24, 0);
-}
-  fts5yymsp[-2].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
-        break;
-      case 9: /* expr ::= expr NOT expr */
-{
-  fts5yylhsminor.fts5yy24 = tdsqlite3Fts5ParseNode(pParse, FTS5_NOT, fts5yymsp[-2].minor.fts5yy24, fts5yymsp[0].minor.fts5yy24, 0);
-}
-  fts5yymsp[-2].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
-        break;
-      case 10: /* expr ::= colset COLON LP expr RP */
-{
-  tdsqlite3Fts5ParseSetColset(pParse, fts5yymsp[-1].minor.fts5yy24, fts5yymsp[-4].minor.fts5yy11);
-  fts5yylhsminor.fts5yy24 = fts5yymsp[-1].minor.fts5yy24;
-}
-  fts5yymsp[-4].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
-        break;
-      case 11: /* expr ::= LP expr RP */
-{fts5yymsp[-2].minor.fts5yy24 = fts5yymsp[-1].minor.fts5yy24;}
-        break;
-      case 12: /* expr ::= exprlist */
-      case 13: /* exprlist ::= cnearset */ fts5yytestcase(fts5yyruleno==13);
-{fts5yylhsminor.fts5yy24 = fts5yymsp[0].minor.fts5yy24;}
-  fts5yymsp[0].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
-        break;
-      case 14: /* exprlist ::= exprlist cnearset */
-{
-  fts5yylhsminor.fts5yy24 = tdsqlite3Fts5ParseImplicitAnd(pParse, fts5yymsp[-1].minor.fts5yy24, fts5yymsp[0].minor.fts5yy24);
-}
-  fts5yymsp[-1].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
-        break;
-      case 15: /* cnearset ::= nearset */
-{ 
-  fts5yylhsminor.fts5yy24 = tdsqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, fts5yymsp[0].minor.fts5yy46); 
-}
-  fts5yymsp[0].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
-        break;
-      case 16: /* cnearset ::= colset COLON nearset */
-{ 
-  fts5yylhsminor.fts5yy24 = tdsqlite3Fts5ParseNode(pParse, FTS5_STRING, 0, 0, fts5yymsp[0].minor.fts5yy46); 
-  tdsqlite3Fts5ParseSetColset(pParse, fts5yylhsminor.fts5yy24, fts5yymsp[-2].minor.fts5yy11);
-}
-  fts5yymsp[-2].minor.fts5yy24 = fts5yylhsminor.fts5yy24;
-        break;
-      case 17: /* nearset ::= phrase */
-{ fts5yylhsminor.fts5yy46 = tdsqlite3Fts5ParseNearset(pParse, 0, fts5yymsp[0].minor.fts5yy53); }
-  fts5yymsp[0].minor.fts5yy46 = fts5yylhsminor.fts5yy46;
-        break;
-      case 18: /* nearset ::= CARET phrase */
-{ 
-  tdsqlite3Fts5ParseSetCaret(fts5yymsp[0].minor.fts5yy53);
-  fts5yymsp[-1].minor.fts5yy46 = tdsqlite3Fts5ParseNearset(pParse, 0, fts5yymsp[0].minor.fts5yy53); 
-}
-        break;
-      case 19: /* nearset ::= STRING LP nearphrases neardist_opt RP */
-{
-  tdsqlite3Fts5ParseNear(pParse, &fts5yymsp[-4].minor.fts5yy0);
-  tdsqlite3Fts5ParseSetDistance(pParse, fts5yymsp[-2].minor.fts5yy46, &fts5yymsp[-1].minor.fts5yy0);
-  fts5yylhsminor.fts5yy46 = fts5yymsp[-2].minor.fts5yy46;
-}
-  fts5yymsp[-4].minor.fts5yy46 = fts5yylhsminor.fts5yy46;
-        break;
-      case 20: /* nearphrases ::= phrase */
-{ 
-  fts5yylhsminor.fts5yy46 = tdsqlite3Fts5ParseNearset(pParse, 0, fts5yymsp[0].minor.fts5yy53); 
-}
-  fts5yymsp[0].minor.fts5yy46 = fts5yylhsminor.fts5yy46;
-        break;
-      case 21: /* nearphrases ::= nearphrases phrase */
-{
-  fts5yylhsminor.fts5yy46 = tdsqlite3Fts5ParseNearset(pParse, fts5yymsp[-1].minor.fts5yy46, fts5yymsp[0].minor.fts5yy53);
-}
-  fts5yymsp[-1].minor.fts5yy46 = fts5yylhsminor.fts5yy46;
-        break;
-      case 22: /* neardist_opt ::= */
-{ fts5yymsp[1].minor.fts5yy0.p = 0; fts5yymsp[1].minor.fts5yy0.n = 0; }
-        break;
-      case 23: /* neardist_opt ::= COMMA STRING */
-{ fts5yymsp[-1].minor.fts5yy0 = fts5yymsp[0].minor.fts5yy0; }
-        break;
-      case 24: /* phrase ::= phrase PLUS STRING star_opt */
-{ 
-  fts5yylhsminor.fts5yy53 = tdsqlite3Fts5ParseTerm(pParse, fts5yymsp[-3].minor.fts5yy53, &fts5yymsp[-1].minor.fts5yy0, fts5yymsp[0].minor.fts5yy4);
-}
-  fts5yymsp[-3].minor.fts5yy53 = fts5yylhsminor.fts5yy53;
-        break;
-      case 25: /* phrase ::= STRING star_opt */
-{ 
-  fts5yylhsminor.fts5yy53 = tdsqlite3Fts5ParseTerm(pParse, 0, &fts5yymsp[-1].minor.fts5yy0, fts5yymsp[0].minor.fts5yy4);
-}
-  fts5yymsp[-1].minor.fts5yy53 = fts5yylhsminor.fts5yy53;
-        break;
-      case 26: /* star_opt ::= STAR */
-{ fts5yymsp[0].minor.fts5yy4 = 1; }
-        break;
-      case 27: /* star_opt ::= */
-{ fts5yymsp[1].minor.fts5yy4 = 0; }
-        break;
-      default:
-        break;
-/********** End reduce actions ************************************************/
-  };
-  assert( fts5yyruleno<sizeof(fts5yyRuleInfoLhs)/sizeof(fts5yyRuleInfoLhs[0]) );
-  fts5yygoto = fts5yyRuleInfoLhs[fts5yyruleno];
-  fts5yysize = fts5yyRuleInfoNRhs[fts5yyruleno];
-  fts5yyact = fts5yy_find_reduce_action(fts5yymsp[fts5yysize].stateno,(fts5YYCODETYPE)fts5yygoto);
-
-  /* There are no SHIFTREDUCE actions on nonterminals because the table
-  ** generator has simplified them to pure REDUCE actions. */
-  assert( !(fts5yyact>fts5YY_MAX_SHIFT && fts5yyact<=fts5YY_MAX_SHIFTREDUCE) );
-
-  /* It is not possible for a REDUCE to be followed by an error */
-  assert( fts5yyact!=fts5YY_ERROR_ACTION );
-
-  fts5yymsp += fts5yysize+1;
-  fts5yypParser->fts5yytos = fts5yymsp;
-  fts5yymsp->stateno = (fts5YYACTIONTYPE)fts5yyact;
-  fts5yymsp->major = (fts5YYCODETYPE)fts5yygoto;
-  fts5yyTraceShift(fts5yypParser, fts5yyact, "... then shift");
-  return fts5yyact;
-}
-
-/*
-** The following code executes when the parse fails
-*/
-#ifndef fts5YYNOERRORRECOVERY
-static void fts5yy_parse_failed(
-  fts5yyParser *fts5yypParser           /* The parser */
-){
-  tdsqlite3Fts5ParserARG_FETCH
-  tdsqlite3Fts5ParserCTX_FETCH
-#ifndef NDEBUG
-  if( fts5yyTraceFILE ){
-    fprintf(fts5yyTraceFILE,"%sFail!\n",fts5yyTracePrompt);
-  }
-#endif
-  while( fts5yypParser->fts5yytos>fts5yypParser->fts5yystack ) fts5yy_pop_parser_stack(fts5yypParser);
-  /* Here code is inserted which will be executed whenever the
-  ** parser fails */
-/************ Begin %parse_failure code ***************************************/
-/************ End %parse_failure code *****************************************/
-  tdsqlite3Fts5ParserARG_STORE /* Suppress warning about unused %extra_argument variable */
-  tdsqlite3Fts5ParserCTX_STORE
-}
-#endif /* fts5YYNOERRORRECOVERY */
-
-/*
-** The following code executes when a syntax error first occurs.
-*/
-static void fts5yy_syntax_error(
-  fts5yyParser *fts5yypParser,           /* The parser */
-  int fts5yymajor,                   /* The major type of the error token */
-  tdsqlite3Fts5ParserFTS5TOKENTYPE fts5yyminor         /* The minor type of the error token */
-){
-  tdsqlite3Fts5ParserARG_FETCH
-  tdsqlite3Fts5ParserCTX_FETCH
-#define FTS5TOKEN fts5yyminor
-/************ Begin %syntax_error code ****************************************/
-
-  UNUSED_PARAM(fts5yymajor); /* Silence a compiler warning */
-  tdsqlite3Fts5ParseError(
-    pParse, "fts5: syntax error near \"%.*s\"",FTS5TOKEN.n,FTS5TOKEN.p
-  );
-/************ End %syntax_error code ******************************************/
-  tdsqlite3Fts5ParserARG_STORE /* Suppress warning about unused %extra_argument variable */
-  tdsqlite3Fts5ParserCTX_STORE
-}
-
-/*
-** The following is executed when the parser accepts
-*/
-static void fts5yy_accept(
-  fts5yyParser *fts5yypParser           /* The parser */
-){
-  tdsqlite3Fts5ParserARG_FETCH
-  tdsqlite3Fts5ParserCTX_FETCH
-#ifndef NDEBUG
-  if( fts5yyTraceFILE ){
-    fprintf(fts5yyTraceFILE,"%sAccept!\n",fts5yyTracePrompt);
-  }
-#endif
-#ifndef fts5YYNOERRORRECOVERY
-  fts5yypParser->fts5yyerrcnt = -1;
-#endif
-  assert( fts5yypParser->fts5yytos==fts5yypParser->fts5yystack );
-  /* Here code is inserted which will be executed whenever the
-  ** parser accepts */
-/*********** Begin %parse_accept code *****************************************/
-/*********** End %parse_accept code *******************************************/
-  tdsqlite3Fts5ParserARG_STORE /* Suppress warning about unused %extra_argument variable */
-  tdsqlite3Fts5ParserCTX_STORE
-}
-
-/* The main parser program.
-** The first argument is a pointer to a structure obtained from
-** "tdsqlite3Fts5ParserAlloc" which describes the current state of the parser.
-** The second argument is the major token number.  The third is
-** the minor token.  The fourth optional argument is whatever the
-** user wants (and specified in the grammar) and is available for
-** use by the action routines.
-**
-** Inputs:
-** <ul>
-** <li> A pointer to the parser (an opaque structure.)
-** <li> The major token number.
-** <li> The minor token number.
-** <li> An option argument of a grammar-specified type.
-** </ul>
-**
-** Outputs:
-** None.
-*/
-static void tdsqlite3Fts5Parser(
-  void *fts5yyp,                   /* The parser */
-  int fts5yymajor,                 /* The major token code number */
-  tdsqlite3Fts5ParserFTS5TOKENTYPE fts5yyminor       /* The value for the token */
-  tdsqlite3Fts5ParserARG_PDECL               /* Optional %extra_argument parameter */
-){
-  fts5YYMINORTYPE fts5yyminorunion;
-  fts5YYACTIONTYPE fts5yyact;   /* The parser action. */
-#if !defined(fts5YYERRORSYMBOL) && !defined(fts5YYNOERRORRECOVERY)
-  int fts5yyendofinput;     /* True if we are at the end of input */
-#endif
-#ifdef fts5YYERRORSYMBOL
-  int fts5yyerrorhit = 0;   /* True if fts5yymajor has invoked an error */
-#endif
-  fts5yyParser *fts5yypParser = (fts5yyParser*)fts5yyp;  /* The parser */
-  tdsqlite3Fts5ParserCTX_FETCH
-  tdsqlite3Fts5ParserARG_STORE
-
-  assert( fts5yypParser->fts5yytos!=0 );
-#if !defined(fts5YYERRORSYMBOL) && !defined(fts5YYNOERRORRECOVERY)
-  fts5yyendofinput = (fts5yymajor==0);
-#endif
-
-  fts5yyact = fts5yypParser->fts5yytos->stateno;
-#ifndef NDEBUG
-  if( fts5yyTraceFILE ){
-    if( fts5yyact < fts5YY_MIN_REDUCE ){
-      fprintf(fts5yyTraceFILE,"%sInput '%s' in state %d\n",
-              fts5yyTracePrompt,fts5yyTokenName[fts5yymajor],fts5yyact);
-    }else{
-      fprintf(fts5yyTraceFILE,"%sInput '%s' with pending reduce %d\n",
-              fts5yyTracePrompt,fts5yyTokenName[fts5yymajor],fts5yyact-fts5YY_MIN_REDUCE);
-    }
-  }
-#endif
-
-  do{
-    assert( fts5yyact==fts5yypParser->fts5yytos->stateno );
-    fts5yyact = fts5yy_find_shift_action((fts5YYCODETYPE)fts5yymajor,fts5yyact);
-    if( fts5yyact >= fts5YY_MIN_REDUCE ){
-      fts5yyact = fts5yy_reduce(fts5yypParser,fts5yyact-fts5YY_MIN_REDUCE,fts5yymajor,
-                        fts5yyminor tdsqlite3Fts5ParserCTX_PARAM);
-    }else if( fts5yyact <= fts5YY_MAX_SHIFTREDUCE ){
-      fts5yy_shift(fts5yypParser,fts5yyact,(fts5YYCODETYPE)fts5yymajor,fts5yyminor);
-#ifndef fts5YYNOERRORRECOVERY
-      fts5yypParser->fts5yyerrcnt--;
-#endif
-      break;
-    }else if( fts5yyact==fts5YY_ACCEPT_ACTION ){
-      fts5yypParser->fts5yytos--;
-      fts5yy_accept(fts5yypParser);
-      return;
-    }else{
-      assert( fts5yyact == fts5YY_ERROR_ACTION );
-      fts5yyminorunion.fts5yy0 = fts5yyminor;
-#ifdef fts5YYERRORSYMBOL
-      int fts5yymx;
-#endif
-#ifndef NDEBUG
-      if( fts5yyTraceFILE ){
-        fprintf(fts5yyTraceFILE,"%sSyntax Error!\n",fts5yyTracePrompt);
-      }
-#endif
-#ifdef fts5YYERRORSYMBOL
-      /* A syntax error has occurred.
-      ** The response to an error depends upon whether or not the
-      ** grammar defines an error token "ERROR".  
-      **
-      ** This is what we do if the grammar does define ERROR:
-      **
-      **  * Call the %syntax_error function.
-      **
-      **  * Begin popping the stack until we enter a state where
-      **    it is legal to shift the error symbol, then shift
-      **    the error symbol.
-      **
-      **  * Set the error count to three.
-      **
-      **  * Begin accepting and shifting new tokens.  No new error
-      **    processing will occur until three tokens have been
-      **    shifted successfully.
-      **
-      */
-      if( fts5yypParser->fts5yyerrcnt<0 ){
-        fts5yy_syntax_error(fts5yypParser,fts5yymajor,fts5yyminor);
-      }
-      fts5yymx = fts5yypParser->fts5yytos->major;
-      if( fts5yymx==fts5YYERRORSYMBOL || fts5yyerrorhit ){
-#ifndef NDEBUG
-        if( fts5yyTraceFILE ){
-          fprintf(fts5yyTraceFILE,"%sDiscard input token %s\n",
-             fts5yyTracePrompt,fts5yyTokenName[fts5yymajor]);
-        }
-#endif
-        fts5yy_destructor(fts5yypParser, (fts5YYCODETYPE)fts5yymajor, &fts5yyminorunion);
-        fts5yymajor = fts5YYNOCODE;
-      }else{
-        while( fts5yypParser->fts5yytos >= fts5yypParser->fts5yystack
-            && (fts5yyact = fts5yy_find_reduce_action(
-                        fts5yypParser->fts5yytos->stateno,
-                        fts5YYERRORSYMBOL)) > fts5YY_MAX_SHIFTREDUCE
-        ){
-          fts5yy_pop_parser_stack(fts5yypParser);
-        }
-        if( fts5yypParser->fts5yytos < fts5yypParser->fts5yystack || fts5yymajor==0 ){
-          fts5yy_destructor(fts5yypParser,(fts5YYCODETYPE)fts5yymajor,&fts5yyminorunion);
-          fts5yy_parse_failed(fts5yypParser);
-#ifndef fts5YYNOERRORRECOVERY
-          fts5yypParser->fts5yyerrcnt = -1;
-#endif
-          fts5yymajor = fts5YYNOCODE;
-        }else if( fts5yymx!=fts5YYERRORSYMBOL ){
-          fts5yy_shift(fts5yypParser,fts5yyact,fts5YYERRORSYMBOL,fts5yyminor);
-        }
-      }
-      fts5yypParser->fts5yyerrcnt = 3;
-      fts5yyerrorhit = 1;
-      if( fts5yymajor==fts5YYNOCODE ) break;
-      fts5yyact = fts5yypParser->fts5yytos->stateno;
-#elif defined(fts5YYNOERRORRECOVERY)
-      /* If the fts5YYNOERRORRECOVERY macro is defined, then do not attempt to
-      ** do any kind of error recovery.  Instead, simply invoke the syntax
-      ** error routine and continue going as if nothing had happened.
-      **
-      ** Applications can set this macro (for example inside %include) if
-      ** they intend to abandon the parse upon the first syntax error seen.
-      */
-      fts5yy_syntax_error(fts5yypParser,fts5yymajor, fts5yyminor);
-      fts5yy_destructor(fts5yypParser,(fts5YYCODETYPE)fts5yymajor,&fts5yyminorunion);
-      break;
-#else  /* fts5YYERRORSYMBOL is not defined */
-      /* This is what we do if the grammar does not define ERROR:
-      **
-      **  * Report an error message, and throw away the input token.
-      **
-      **  * If the input token is $, then fail the parse.
-      **
-      ** As before, subsequent error messages are suppressed until
-      ** three input tokens have been successfully shifted.
-      */
-      if( fts5yypParser->fts5yyerrcnt<=0 ){
-        fts5yy_syntax_error(fts5yypParser,fts5yymajor, fts5yyminor);
-      }
-      fts5yypParser->fts5yyerrcnt = 3;
-      fts5yy_destructor(fts5yypParser,(fts5YYCODETYPE)fts5yymajor,&fts5yyminorunion);
-      if( fts5yyendofinput ){
-        fts5yy_parse_failed(fts5yypParser);
-#ifndef fts5YYNOERRORRECOVERY
-        fts5yypParser->fts5yyerrcnt = -1;
-#endif
-      }
-      break;
-#endif
-    }
-  }while( fts5yypParser->fts5yytos>fts5yypParser->fts5yystack );
-#ifndef NDEBUG
-  if( fts5yyTraceFILE ){
-    fts5yyStackEntry *i;
-    char cDiv = '[';
-    fprintf(fts5yyTraceFILE,"%sReturn. Stack=",fts5yyTracePrompt);
-    for(i=&fts5yypParser->fts5yystack[1]; i<=fts5yypParser->fts5yytos; i++){
-      fprintf(fts5yyTraceFILE,"%c%s", cDiv, fts5yyTokenName[i->major]);
-      cDiv = ' ';
-    }
-    fprintf(fts5yyTraceFILE,"]\n");
-  }
-#endif
-  return;
-}
-
-/*
-** Return the fallback token corresponding to canonical token iToken, or
-** 0 if iToken has no fallback.
-*/
-static int tdsqlite3Fts5ParserFallback(int iToken){
-#ifdef fts5YYFALLBACK
-  assert( iToken<(int)(sizeof(fts5yyFallback)/sizeof(fts5yyFallback[0])) );
-  return fts5yyFallback[iToken];
-#else
-  (void)iToken;
-  return 0;
-#endif
-}
-
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-*/
-
-
-/* #include "fts5Int.h" */
-#include <math.h>                 /* amalgamator: keep */
-
-/*
-** Object used to iterate through all "coalesced phrase instances" in 
-** a single column of the current row. If the phrase instances in the
-** column being considered do not overlap, this object simply iterates
-** through them. Or, if they do overlap (share one or more tokens in
-** common), each set of overlapping instances is treated as a single
-** match. See documentation for the highlight() auxiliary function for
-** details.
-**
-** Usage is:
-**
-**   for(rc = fts5CInstIterNext(pApi, pFts, iCol, &iter);
-**      (rc==SQLITE_OK && 0==fts5CInstIterEof(&iter);
-**      rc = fts5CInstIterNext(&iter)
-**   ){
-**     printf("instance starts at %d, ends at %d\n", iter.iStart, iter.iEnd);
-**   }
-**
-*/
-typedef struct CInstIter CInstIter;
-struct CInstIter {
-  const Fts5ExtensionApi *pApi;   /* API offered by current FTS version */
-  Fts5Context *pFts;              /* First arg to pass to pApi functions */
-  int iCol;                       /* Column to search */
-  int iInst;                      /* Next phrase instance index */
-  int nInst;                      /* Total number of phrase instances */
-
-  /* Output variables */
-  int iStart;                     /* First token in coalesced phrase instance */
-  int iEnd;                       /* Last token in coalesced phrase instance */
-};
-
-/*
-** Advance the iterator to the next coalesced phrase instance. Return
-** an SQLite error code if an error occurs, or SQLITE_OK otherwise.
-*/
-static int fts5CInstIterNext(CInstIter *pIter){
-  int rc = SQLITE_OK;
-  pIter->iStart = -1;
-  pIter->iEnd = -1;
-
-  while( rc==SQLITE_OK && pIter->iInst<pIter->nInst ){
-    int ip; int ic; int io;
-    rc = pIter->pApi->xInst(pIter->pFts, pIter->iInst, &ip, &ic, &io);
-    if( rc==SQLITE_OK ){
-      if( ic==pIter->iCol ){
-        int iEnd = io - 1 + pIter->pApi->xPhraseSize(pIter->pFts, ip);
-        if( pIter->iStart<0 ){
-          pIter->iStart = io;
-          pIter->iEnd = iEnd;
-        }else if( io<=pIter->iEnd ){
-          if( iEnd>pIter->iEnd ) pIter->iEnd = iEnd;
-        }else{
-          break;
-        }
-      }
-      pIter->iInst++;
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Initialize the iterator object indicated by the final parameter to 
-** iterate through coalesced phrase instances in column iCol.
-*/
-static int fts5CInstIterInit(
-  const Fts5ExtensionApi *pApi,
-  Fts5Context *pFts,
-  int iCol,
-  CInstIter *pIter
-){
-  int rc;
-
-  memset(pIter, 0, sizeof(CInstIter));
-  pIter->pApi = pApi;
-  pIter->pFts = pFts;
-  pIter->iCol = iCol;
-  rc = pApi->xInstCount(pFts, &pIter->nInst);
-
-  if( rc==SQLITE_OK ){
-    rc = fts5CInstIterNext(pIter);
-  }
-
-  return rc;
-}
-
-
-
-/*************************************************************************
-** Start of highlight() implementation.
-*/
-typedef struct HighlightContext HighlightContext;
-struct HighlightContext {
-  CInstIter iter;                 /* Coalesced Instance Iterator */
-  int iPos;                       /* Current token offset in zIn[] */
-  int iRangeStart;                /* First token to include */
-  int iRangeEnd;                  /* If non-zero, last token to include */
-  const char *zOpen;              /* Opening highlight */
-  const char *zClose;             /* Closing highlight */
-  const char *zIn;                /* Input text */
-  int nIn;                        /* Size of input text in bytes */
-  int iOff;                       /* Current offset within zIn[] */
-  char *zOut;                     /* Output value */
-};
-
-/*
-** Append text to the HighlightContext output string - p->zOut. Argument
-** z points to a buffer containing n bytes of text to append. If n is 
-** negative, everything up until the first '\0' is appended to the output.
-**
-** If *pRc is set to any value other than SQLITE_OK when this function is 
-** called, it is a no-op. If an error (i.e. an OOM condition) is encountered, 
-** *pRc is set to an error code before returning. 
-*/
-static void fts5HighlightAppend(
-  int *pRc, 
-  HighlightContext *p, 
-  const char *z, int n
-){
-  if( *pRc==SQLITE_OK && z ){
-    if( n<0 ) n = (int)strlen(z);
-    p->zOut = tdsqlite3_mprintf("%z%.*s", p->zOut, n, z);
-    if( p->zOut==0 ) *pRc = SQLITE_NOMEM;
-  }
-}
-
-/*
-** Tokenizer callback used by implementation of highlight() function.
-*/
-static int fts5HighlightCb(
-  void *pContext,                 /* Pointer to HighlightContext object */
-  int tflags,                     /* Mask of FTS5_TOKEN_* flags */
-  const char *pToken,             /* Buffer containing token */
-  int nToken,                     /* Size of token in bytes */
-  int iStartOff,                  /* Start offset of token */
-  int iEndOff                     /* End offset of token */
-){
-  HighlightContext *p = (HighlightContext*)pContext;
-  int rc = SQLITE_OK;
-  int iPos;
-
-  UNUSED_PARAM2(pToken, nToken);
-
-  if( tflags & FTS5_TOKEN_COLOCATED ) return SQLITE_OK;
-  iPos = p->iPos++;
-
-  if( p->iRangeEnd>0 ){
-    if( iPos<p->iRangeStart || iPos>p->iRangeEnd ) return SQLITE_OK;
-    if( p->iRangeStart && iPos==p->iRangeStart ) p->iOff = iStartOff;
-  }
-
-  if( iPos==p->iter.iStart ){
-    fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iStartOff - p->iOff);
-    fts5HighlightAppend(&rc, p, p->zOpen, -1);
-    p->iOff = iStartOff;
-  }
-
-  if( iPos==p->iter.iEnd ){
-    if( p->iRangeEnd && p->iter.iStart<p->iRangeStart ){
-      fts5HighlightAppend(&rc, p, p->zOpen, -1);
-    }
-    fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff);
-    fts5HighlightAppend(&rc, p, p->zClose, -1);
-    p->iOff = iEndOff;
-    if( rc==SQLITE_OK ){
-      rc = fts5CInstIterNext(&p->iter);
-    }
-  }
-
-  if( p->iRangeEnd>0 && iPos==p->iRangeEnd ){
-    fts5HighlightAppend(&rc, p, &p->zIn[p->iOff], iEndOff - p->iOff);
-    p->iOff = iEndOff;
-    if( iPos>=p->iter.iStart && iPos<p->iter.iEnd ){
-      fts5HighlightAppend(&rc, p, p->zClose, -1);
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Implementation of highlight() function.
-*/
-static void fts5HighlightFunction(
-  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
-  Fts5Context *pFts,              /* First arg to pass to pApi functions */
-  tdsqlite3_context *pCtx,          /* Context for returning result/error */
-  int nVal,                       /* Number of values in apVal[] array */
-  tdsqlite3_value **apVal           /* Array of trailing arguments */
-){
-  HighlightContext ctx;
-  int rc;
-  int iCol;
-
-  if( nVal!=3 ){
-    const char *zErr = "wrong number of arguments to function highlight()";
-    tdsqlite3_result_error(pCtx, zErr, -1);
-    return;
-  }
-
-  iCol = tdsqlite3_value_int(apVal[0]);
-  memset(&ctx, 0, sizeof(HighlightContext));
-  ctx.zOpen = (const char*)tdsqlite3_value_text(apVal[1]);
-  ctx.zClose = (const char*)tdsqlite3_value_text(apVal[2]);
-  rc = pApi->xColumnText(pFts, iCol, &ctx.zIn, &ctx.nIn);
-
-  if( ctx.zIn ){
-    if( rc==SQLITE_OK ){
-      rc = fts5CInstIterInit(pApi, pFts, iCol, &ctx.iter);
-    }
-
-    if( rc==SQLITE_OK ){
-      rc = pApi->xTokenize(pFts, ctx.zIn, ctx.nIn, (void*)&ctx,fts5HighlightCb);
-    }
-    fts5HighlightAppend(&rc, &ctx, &ctx.zIn[ctx.iOff], ctx.nIn - ctx.iOff);
-
-    if( rc==SQLITE_OK ){
-      tdsqlite3_result_text(pCtx, (const char*)ctx.zOut, -1, SQLITE_TRANSIENT);
-    }
-    tdsqlite3_free(ctx.zOut);
-  }
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_result_error_code(pCtx, rc);
-  }
-}
-/*
-** End of highlight() implementation.
-**************************************************************************/
-
-/*
-** Context object passed to the fts5SentenceFinderCb() function.
-*/
-typedef struct Fts5SFinder Fts5SFinder;
-struct Fts5SFinder {
-  int iPos;                       /* Current token position */
-  int nFirstAlloc;                /* Allocated size of aFirst[] */
-  int nFirst;                     /* Number of entries in aFirst[] */
-  int *aFirst;                    /* Array of first token in each sentence */
-  const char *zDoc;               /* Document being tokenized */
-};
-
-/*
-** Add an entry to the Fts5SFinder.aFirst[] array. Grow the array if
-** necessary. Return SQLITE_OK if successful, or SQLITE_NOMEM if an
-** error occurs.
-*/
-static int fts5SentenceFinderAdd(Fts5SFinder *p, int iAdd){
-  if( p->nFirstAlloc==p->nFirst ){
-    int nNew = p->nFirstAlloc ? p->nFirstAlloc*2 : 64;
-    int *aNew;
-
-    aNew = (int*)tdsqlite3_realloc64(p->aFirst, nNew*sizeof(int));
-    if( aNew==0 ) return SQLITE_NOMEM;
-    p->aFirst = aNew;
-    p->nFirstAlloc = nNew;
-  }
-  p->aFirst[p->nFirst++] = iAdd;
-  return SQLITE_OK;
-}
-
-/*
-** This function is an xTokenize() callback used by the auxiliary snippet()
-** function. Its job is to identify tokens that are the first in a sentence.
-** For each such token, an entry is added to the SFinder.aFirst[] array.
-*/
-static int fts5SentenceFinderCb(
-  void *pContext,                 /* Pointer to HighlightContext object */
-  int tflags,                     /* Mask of FTS5_TOKEN_* flags */
-  const char *pToken,             /* Buffer containing token */
-  int nToken,                     /* Size of token in bytes */
-  int iStartOff,                  /* Start offset of token */
-  int iEndOff                     /* End offset of token */
-){
-  int rc = SQLITE_OK;
-
-  UNUSED_PARAM2(pToken, nToken);
-  UNUSED_PARAM(iEndOff);
-
-  if( (tflags & FTS5_TOKEN_COLOCATED)==0 ){
-    Fts5SFinder *p = (Fts5SFinder*)pContext;
-    if( p->iPos>0 ){
-      int i;
-      char c = 0;
-      for(i=iStartOff-1; i>=0; i--){
-        c = p->zDoc[i];
-        if( c!=' ' && c!='\t' && c!='\n' && c!='\r' ) break;
-      }
-      if( i!=iStartOff-1 && (c=='.' || c==':') ){
-        rc = fts5SentenceFinderAdd(p, p->iPos);
-      }
-    }else{
-      rc = fts5SentenceFinderAdd(p, 0);
-    }
-    p->iPos++;
-  }
-  return rc;
-}
-
-static int fts5SnippetScore(
-  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
-  Fts5Context *pFts,              /* First arg to pass to pApi functions */
-  int nDocsize,                   /* Size of column in tokens */
-  unsigned char *aSeen,           /* Array with one element per query phrase */
-  int iCol,                       /* Column to score */
-  int iPos,                       /* Starting offset to score */
-  int nToken,                     /* Max tokens per snippet */
-  int *pnScore,                   /* OUT: Score */
-  int *piPos                      /* OUT: Adjusted offset */
-){
-  int rc;
-  int i;
-  int ip = 0;
-  int ic = 0;
-  int iOff = 0;
-  int iFirst = -1;
-  int nInst;
-  int nScore = 0;
-  int iLast = 0;
-  tdsqlite3_int64 iEnd = (tdsqlite3_int64)iPos + nToken;
-
-  rc = pApi->xInstCount(pFts, &nInst);
-  for(i=0; i<nInst && rc==SQLITE_OK; i++){
-    rc = pApi->xInst(pFts, i, &ip, &ic, &iOff);
-    if( rc==SQLITE_OK && ic==iCol && iOff>=iPos && iOff<iEnd ){
-      nScore += (aSeen[ip] ? 1 : 1000);
-      aSeen[ip] = 1;
-      if( iFirst<0 ) iFirst = iOff;
-      iLast = iOff + pApi->xPhraseSize(pFts, ip);
-    }
-  }
-
-  *pnScore = nScore;
-  if( piPos ){
-    tdsqlite3_int64 iAdj = iFirst - (nToken - (iLast-iFirst)) / 2;
-    if( (iAdj+nToken)>nDocsize ) iAdj = nDocsize - nToken;
-    if( iAdj<0 ) iAdj = 0;
-    *piPos = (int)iAdj;
-  }
-
-  return rc;
-}
-
-/*
-** Return the value in pVal interpreted as utf-8 text. Except, if pVal 
-** contains a NULL value, return a pointer to a static string zero
-** bytes in length instead of a NULL pointer.
-*/
-static const char *fts5ValueToText(tdsqlite3_value *pVal){
-  const char *zRet = (const char*)tdsqlite3_value_text(pVal);
-  return zRet ? zRet : "";
-}
-
-/*
-** Implementation of snippet() function.
-*/
-static void fts5SnippetFunction(
-  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
-  Fts5Context *pFts,              /* First arg to pass to pApi functions */
-  tdsqlite3_context *pCtx,          /* Context for returning result/error */
-  int nVal,                       /* Number of values in apVal[] array */
-  tdsqlite3_value **apVal           /* Array of trailing arguments */
-){
-  HighlightContext ctx;
-  int rc = SQLITE_OK;             /* Return code */
-  int iCol;                       /* 1st argument to snippet() */
-  const char *zEllips;            /* 4th argument to snippet() */
-  int nToken;                     /* 5th argument to snippet() */
-  int nInst = 0;                  /* Number of instance matches this row */
-  int i;                          /* Used to iterate through instances */
-  int nPhrase;                    /* Number of phrases in query */
-  unsigned char *aSeen;           /* Array of "seen instance" flags */
-  int iBestCol;                   /* Column containing best snippet */
-  int iBestStart = 0;             /* First token of best snippet */
-  int nBestScore = 0;             /* Score of best snippet */
-  int nColSize = 0;               /* Total size of iBestCol in tokens */
-  Fts5SFinder sFinder;            /* Used to find the beginnings of sentences */
-  int nCol;
-
-  if( nVal!=5 ){
-    const char *zErr = "wrong number of arguments to function snippet()";
-    tdsqlite3_result_error(pCtx, zErr, -1);
-    return;
-  }
-
-  nCol = pApi->xColumnCount(pFts);
-  memset(&ctx, 0, sizeof(HighlightContext));
-  iCol = tdsqlite3_value_int(apVal[0]);
-  ctx.zOpen = fts5ValueToText(apVal[1]);
-  ctx.zClose = fts5ValueToText(apVal[2]);
-  zEllips = fts5ValueToText(apVal[3]);
-  nToken = tdsqlite3_value_int(apVal[4]);
-
-  iBestCol = (iCol>=0 ? iCol : 0);
-  nPhrase = pApi->xPhraseCount(pFts);
-  aSeen = tdsqlite3_malloc(nPhrase);
-  if( aSeen==0 ){
-    rc = SQLITE_NOMEM;
-  }
-  if( rc==SQLITE_OK ){
-    rc = pApi->xInstCount(pFts, &nInst);
-  }
-
-  memset(&sFinder, 0, sizeof(Fts5SFinder));
-  for(i=0; i<nCol; i++){
-    if( iCol<0 || iCol==i ){
-      int nDoc;
-      int nDocsize;
-      int ii;
-      sFinder.iPos = 0;
-      sFinder.nFirst = 0;
-      rc = pApi->xColumnText(pFts, i, &sFinder.zDoc, &nDoc);
-      if( rc!=SQLITE_OK ) break;
-      rc = pApi->xTokenize(pFts, 
-          sFinder.zDoc, nDoc, (void*)&sFinder,fts5SentenceFinderCb
-      );
-      if( rc!=SQLITE_OK ) break;
-      rc = pApi->xColumnSize(pFts, i, &nDocsize);
-      if( rc!=SQLITE_OK ) break;
-
-      for(ii=0; rc==SQLITE_OK && ii<nInst; ii++){
-        int ip, ic, io;
-        int iAdj;
-        int nScore;
-        int jj;
-
-        rc = pApi->xInst(pFts, ii, &ip, &ic, &io);
-        if( ic!=i ) continue;
-        if( io>nDocsize ) rc = FTS5_CORRUPT;
-        if( rc!=SQLITE_OK ) continue;
-        memset(aSeen, 0, nPhrase);
-        rc = fts5SnippetScore(pApi, pFts, nDocsize, aSeen, i,
-            io, nToken, &nScore, &iAdj
-        );
-        if( rc==SQLITE_OK && nScore>nBestScore ){
-          nBestScore = nScore;
-          iBestCol = i;
-          iBestStart = iAdj;
-          nColSize = nDocsize;
-        }
-
-        if( rc==SQLITE_OK && sFinder.nFirst && nDocsize>nToken ){
-          for(jj=0; jj<(sFinder.nFirst-1); jj++){
-            if( sFinder.aFirst[jj+1]>io ) break;
-          }
-
-          if( sFinder.aFirst[jj]<io ){
-            memset(aSeen, 0, nPhrase);
-            rc = fts5SnippetScore(pApi, pFts, nDocsize, aSeen, i, 
-              sFinder.aFirst[jj], nToken, &nScore, 0
-            );
-
-            nScore += (sFinder.aFirst[jj]==0 ? 120 : 100);
-            if( rc==SQLITE_OK && nScore>nBestScore ){
-              nBestScore = nScore;
-              iBestCol = i;
-              iBestStart = sFinder.aFirst[jj];
-              nColSize = nDocsize;
-            }
-          }
-        }
-      }
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = pApi->xColumnText(pFts, iBestCol, &ctx.zIn, &ctx.nIn);
-  }
-  if( rc==SQLITE_OK && nColSize==0 ){
-    rc = pApi->xColumnSize(pFts, iBestCol, &nColSize);
-  }
-  if( ctx.zIn ){
-    if( rc==SQLITE_OK ){
-      rc = fts5CInstIterInit(pApi, pFts, iBestCol, &ctx.iter);
-    }
-
-    ctx.iRangeStart = iBestStart;
-    ctx.iRangeEnd = iBestStart + nToken - 1;
-
-    if( iBestStart>0 ){
-      fts5HighlightAppend(&rc, &ctx, zEllips, -1);
-    }
-
-    /* Advance iterator ctx.iter so that it points to the first coalesced
-    ** phrase instance at or following position iBestStart. */
-    while( ctx.iter.iStart>=0 && ctx.iter.iStart<iBestStart && rc==SQLITE_OK ){
-      rc = fts5CInstIterNext(&ctx.iter);
-    }
-
-    if( rc==SQLITE_OK ){
-      rc = pApi->xTokenize(pFts, ctx.zIn, ctx.nIn, (void*)&ctx,fts5HighlightCb);
-    }
-    if( ctx.iRangeEnd>=(nColSize-1) ){
-      fts5HighlightAppend(&rc, &ctx, &ctx.zIn[ctx.iOff], ctx.nIn - ctx.iOff);
-    }else{
-      fts5HighlightAppend(&rc, &ctx, zEllips, -1);
-    }
-  }
-  if( rc==SQLITE_OK ){
-    tdsqlite3_result_text(pCtx, (const char*)ctx.zOut, -1, SQLITE_TRANSIENT);
-  }else{
-    tdsqlite3_result_error_code(pCtx, rc);
-  }
-  tdsqlite3_free(ctx.zOut);
-  tdsqlite3_free(aSeen);
-  tdsqlite3_free(sFinder.aFirst);
-}
-
-/************************************************************************/
-
-/*
-** The first time the bm25() function is called for a query, an instance
-** of the following structure is allocated and populated.
-*/
-typedef struct Fts5Bm25Data Fts5Bm25Data;
-struct Fts5Bm25Data {
-  int nPhrase;                    /* Number of phrases in query */
-  double avgdl;                   /* Average number of tokens in each row */
-  double *aIDF;                   /* IDF for each phrase */
-  double *aFreq;                  /* Array used to calculate phrase freq. */
-};
-
-/*
-** Callback used by fts5Bm25GetData() to count the number of rows in the
-** table matched by each individual phrase within the query.
-*/
-static int fts5CountCb(
-  const Fts5ExtensionApi *pApi, 
-  Fts5Context *pFts,
-  void *pUserData                 /* Pointer to tdsqlite3_int64 variable */
-){
-  tdsqlite3_int64 *pn = (tdsqlite3_int64*)pUserData;
-  UNUSED_PARAM2(pApi, pFts);
-  (*pn)++;
-  return SQLITE_OK;
-}
-
-/*
-** Set *ppData to point to the Fts5Bm25Data object for the current query. 
-** If the object has not already been allocated, allocate and populate it
-** now.
-*/
-static int fts5Bm25GetData(
-  const Fts5ExtensionApi *pApi, 
-  Fts5Context *pFts,
-  Fts5Bm25Data **ppData           /* OUT: bm25-data object for this query */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  Fts5Bm25Data *p;                /* Object to return */
-
-  p = pApi->xGetAuxdata(pFts, 0);
-  if( p==0 ){
-    int nPhrase;                  /* Number of phrases in query */
-    tdsqlite3_int64 nRow = 0;       /* Number of rows in table */
-    tdsqlite3_int64 nToken = 0;     /* Number of tokens in table */
-    tdsqlite3_int64 nByte;          /* Bytes of space to allocate */
-    int i;
-
-    /* Allocate the Fts5Bm25Data object */
-    nPhrase = pApi->xPhraseCount(pFts);
-    nByte = sizeof(Fts5Bm25Data) + nPhrase*2*sizeof(double);
-    p = (Fts5Bm25Data*)tdsqlite3_malloc64(nByte);
-    if( p==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      memset(p, 0, (size_t)nByte);
-      p->nPhrase = nPhrase;
-      p->aIDF = (double*)&p[1];
-      p->aFreq = &p->aIDF[nPhrase];
-    }
-
-    /* Calculate the average document length for this FTS5 table */
-    if( rc==SQLITE_OK ) rc = pApi->xRowCount(pFts, &nRow);
-    assert( rc!=SQLITE_OK || nRow>0 );
-    if( rc==SQLITE_OK ) rc = pApi->xColumnTotalSize(pFts, -1, &nToken);
-    if( rc==SQLITE_OK ) p->avgdl = (double)nToken  / (double)nRow;
-
-    /* Calculate an IDF for each phrase in the query */
-    for(i=0; rc==SQLITE_OK && i<nPhrase; i++){
-      tdsqlite3_int64 nHit = 0;
-      rc = pApi->xQueryPhrase(pFts, i, (void*)&nHit, fts5CountCb);
-      if( rc==SQLITE_OK ){
-        /* Calculate the IDF (Inverse Document Frequency) for phrase i.
-        ** This is done using the standard BM25 formula as found on wikipedia:
-        **
-        **   IDF = log( (N - nHit + 0.5) / (nHit + 0.5) )
-        **
-        ** where "N" is the total number of documents in the set and nHit
-        ** is the number that contain at least one instance of the phrase
-        ** under consideration.
-        **
-        ** The problem with this is that if (N < 2*nHit), the IDF is 
-        ** negative. Which is undesirable. So the mimimum allowable IDF is
-        ** (1e-6) - roughly the same as a term that appears in just over
-        ** half of set of 5,000,000 documents.  */
-        double idf = log( (nRow - nHit + 0.5) / (nHit + 0.5) );
-        if( idf<=0.0 ) idf = 1e-6;
-        p->aIDF[i] = idf;
-      }
-    }
-
-    if( rc!=SQLITE_OK ){
-      tdsqlite3_free(p);
-    }else{
-      rc = pApi->xSetAuxdata(pFts, p, tdsqlite3_free);
-    }
-    if( rc!=SQLITE_OK ) p = 0;
-  }
-  *ppData = p;
-  return rc;
-}
-
-/*
-** Implementation of bm25() function.
-*/
-static void fts5Bm25Function(
-  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
-  Fts5Context *pFts,              /* First arg to pass to pApi functions */
-  tdsqlite3_context *pCtx,          /* Context for returning result/error */
-  int nVal,                       /* Number of values in apVal[] array */
-  tdsqlite3_value **apVal           /* Array of trailing arguments */
-){
-  const double k1 = 1.2;          /* Constant "k1" from BM25 formula */
-  const double b = 0.75;          /* Constant "b" from BM25 formula */
-  int rc = SQLITE_OK;             /* Error code */
-  double score = 0.0;             /* SQL function return value */
-  Fts5Bm25Data *pData;            /* Values allocated/calculated once only */
-  int i;                          /* Iterator variable */
-  int nInst = 0;                  /* Value returned by xInstCount() */
-  double D = 0.0;                 /* Total number of tokens in row */
-  double *aFreq = 0;              /* Array of phrase freq. for current row */
-
-  /* Calculate the phrase frequency (symbol "f(qi,D)" in the documentation)
-  ** for each phrase in the query for the current row. */
-  rc = fts5Bm25GetData(pApi, pFts, &pData);
-  if( rc==SQLITE_OK ){
-    aFreq = pData->aFreq;
-    memset(aFreq, 0, sizeof(double) * pData->nPhrase);
-    rc = pApi->xInstCount(pFts, &nInst);
-  }
-  for(i=0; rc==SQLITE_OK && i<nInst; i++){
-    int ip; int ic; int io;
-    rc = pApi->xInst(pFts, i, &ip, &ic, &io);
-    if( rc==SQLITE_OK ){
-      double w = (nVal > ic) ? tdsqlite3_value_double(apVal[ic]) : 1.0;
-      aFreq[ip] += w;
-    }
-  }
-
-  /* Figure out the total size of the current row in tokens. */
-  if( rc==SQLITE_OK ){
-    int nTok;
-    rc = pApi->xColumnSize(pFts, -1, &nTok);
-    D = (double)nTok;
-  }
-
-  /* Determine the BM25 score for the current row. */
-  for(i=0; rc==SQLITE_OK && i<pData->nPhrase; i++){
-    score += pData->aIDF[i] * (
-      ( aFreq[i] * (k1 + 1.0) ) / 
-      ( aFreq[i] + k1 * (1 - b + b * D / pData->avgdl) )
-    );
-  }
-  
-  /* If no error has occurred, return the calculated score. Otherwise,
-  ** throw an SQL exception.  */
-  if( rc==SQLITE_OK ){
-    tdsqlite3_result_double(pCtx, -1.0 * score);
-  }else{
-    tdsqlite3_result_error_code(pCtx, rc);
-  }
-}
-
-static int tdsqlite3Fts5AuxInit(fts5_api *pApi){
-  struct Builtin {
-    const char *zFunc;            /* Function name (nul-terminated) */
-    void *pUserData;              /* User-data pointer */
-    fts5_extension_function xFunc;/* Callback function */
-    void (*xDestroy)(void*);      /* Destructor function */
-  } aBuiltin [] = {
-    { "snippet",   0, fts5SnippetFunction, 0 },
-    { "highlight", 0, fts5HighlightFunction, 0 },
-    { "bm25",      0, fts5Bm25Function,    0 },
-  };
-  int rc = SQLITE_OK;             /* Return code */
-  int i;                          /* To iterate through builtin functions */
-
-  for(i=0; rc==SQLITE_OK && i<ArraySize(aBuiltin); i++){
-    rc = pApi->xCreateFunction(pApi,
-        aBuiltin[i].zFunc,
-        aBuiltin[i].pUserData,
-        aBuiltin[i].xFunc,
-        aBuiltin[i].xDestroy
-    );
-  }
-
-  return rc;
-}
-
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-*/
-
-
-
-/* #include "fts5Int.h" */
-
-static int tdsqlite3Fts5BufferSize(int *pRc, Fts5Buffer *pBuf, u32 nByte){
-  if( (u32)pBuf->nSpace<nByte ){
-    u64 nNew = pBuf->nSpace ? pBuf->nSpace : 64;
-    u8 *pNew;
-    while( nNew<nByte ){
-      nNew = nNew * 2;
-    }
-    pNew = tdsqlite3_realloc64(pBuf->p, nNew);
-    if( pNew==0 ){
-      *pRc = SQLITE_NOMEM;
-      return 1;
-    }else{
-      pBuf->nSpace = (int)nNew;
-      pBuf->p = pNew;
-    }
-  }
-  return 0;
-}
-
-
-/*
-** Encode value iVal as an SQLite varint and append it to the buffer object
-** pBuf. If an OOM error occurs, set the error code in p.
-*/
-static void tdsqlite3Fts5BufferAppendVarint(int *pRc, Fts5Buffer *pBuf, i64 iVal){
-  if( fts5BufferGrow(pRc, pBuf, 9) ) return;
-  pBuf->n += tdsqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iVal);
-}
-
-static void tdsqlite3Fts5Put32(u8 *aBuf, int iVal){
-  aBuf[0] = (iVal>>24) & 0x00FF;
-  aBuf[1] = (iVal>>16) & 0x00FF;
-  aBuf[2] = (iVal>> 8) & 0x00FF;
-  aBuf[3] = (iVal>> 0) & 0x00FF;
-}
-
-static int tdsqlite3Fts5Get32(const u8 *aBuf){
-  return (int)((((u32)aBuf[0])<<24) + (aBuf[1]<<16) + (aBuf[2]<<8) + aBuf[3]);
-}
-
-/*
-** Append buffer nData/pData to buffer pBuf. If an OOM error occurs, set 
-** the error code in p. If an error has already occurred when this function
-** is called, it is a no-op.
-*/
-static void tdsqlite3Fts5BufferAppendBlob(
-  int *pRc,
-  Fts5Buffer *pBuf, 
-  u32 nData, 
-  const u8 *pData
-){
-  assert_nc( *pRc || nData>=0 );
-  if( nData ){
-    if( fts5BufferGrow(pRc, pBuf, nData) ) return;
-    memcpy(&pBuf->p[pBuf->n], pData, nData);
-    pBuf->n += nData;
-  }
-}
-
-/*
-** Append the nul-terminated string zStr to the buffer pBuf. This function
-** ensures that the byte following the buffer data is set to 0x00, even 
-** though this byte is not included in the pBuf->n count.
-*/
-static void tdsqlite3Fts5BufferAppendString(
-  int *pRc,
-  Fts5Buffer *pBuf, 
-  const char *zStr
-){
-  int nStr = (int)strlen(zStr);
-  tdsqlite3Fts5BufferAppendBlob(pRc, pBuf, nStr+1, (const u8*)zStr);
-  pBuf->n--;
-}
-
-/*
-** Argument zFmt is a printf() style format string. This function performs
-** the printf() style processing, then appends the results to buffer pBuf.
-**
-** Like tdsqlite3Fts5BufferAppendString(), this function ensures that the byte 
-** following the buffer data is set to 0x00, even though this byte is not
-** included in the pBuf->n count.
-*/ 
-static void tdsqlite3Fts5BufferAppendPrintf(
-  int *pRc,
-  Fts5Buffer *pBuf, 
-  char *zFmt, ...
-){
-  if( *pRc==SQLITE_OK ){
-    char *zTmp;
-    va_list ap;
-    va_start(ap, zFmt);
-    zTmp = tdsqlite3_vmprintf(zFmt, ap);
-    va_end(ap);
-
-    if( zTmp==0 ){
-      *pRc = SQLITE_NOMEM;
-    }else{
-      tdsqlite3Fts5BufferAppendString(pRc, pBuf, zTmp);
-      tdsqlite3_free(zTmp);
-    }
-  }
-}
-
-static char *tdsqlite3Fts5Mprintf(int *pRc, const char *zFmt, ...){
-  char *zRet = 0;
-  if( *pRc==SQLITE_OK ){
-    va_list ap;
-    va_start(ap, zFmt);
-    zRet = tdsqlite3_vmprintf(zFmt, ap);
-    va_end(ap);
-    if( zRet==0 ){
-      *pRc = SQLITE_NOMEM; 
-    }
-  }
-  return zRet;
-}
- 
-
-/*
-** Free any buffer allocated by pBuf. Zero the structure before returning.
-*/
-static void tdsqlite3Fts5BufferFree(Fts5Buffer *pBuf){
-  tdsqlite3_free(pBuf->p);
-  memset(pBuf, 0, sizeof(Fts5Buffer));
-}
-
-/*
-** Zero the contents of the buffer object. But do not free the associated 
-** memory allocation.
-*/
-static void tdsqlite3Fts5BufferZero(Fts5Buffer *pBuf){
-  pBuf->n = 0;
-}
-
-/*
-** Set the buffer to contain nData/pData. If an OOM error occurs, leave an
-** the error code in p. If an error has already occurred when this function
-** is called, it is a no-op.
-*/
-static void tdsqlite3Fts5BufferSet(
-  int *pRc,
-  Fts5Buffer *pBuf, 
-  int nData, 
-  const u8 *pData
-){
-  pBuf->n = 0;
-  tdsqlite3Fts5BufferAppendBlob(pRc, pBuf, nData, pData);
-}
-
-static int tdsqlite3Fts5PoslistNext64(
-  const u8 *a, int n,             /* Buffer containing poslist */
-  int *pi,                        /* IN/OUT: Offset within a[] */
-  i64 *piOff                      /* IN/OUT: Current offset */
-){
-  int i = *pi;
-  if( i>=n ){
-    /* EOF */
-    *piOff = -1;
-    return 1;  
-  }else{
-    i64 iOff = *piOff;
-    int iVal;
-    fts5FastGetVarint32(a, i, iVal);
-    if( iVal<=1 ){
-      if( iVal==0 ){
-        *pi = i;
-        return 0;
-      }
-      fts5FastGetVarint32(a, i, iVal);
-      iOff = ((i64)iVal) << 32;
-      fts5FastGetVarint32(a, i, iVal);
-      if( iVal<2 ){
-        /* This is a corrupt record. So stop parsing it here. */
-        *piOff = -1;
-        return 1;
-      }
-    }
-    *piOff = iOff + ((iVal-2) & 0x7FFFFFFF);
-    *pi = i;
-    return 0;
-  }
-}
-
-
-/*
-** Advance the iterator object passed as the only argument. Return true
-** if the iterator reaches EOF, or false otherwise.
-*/
-static int tdsqlite3Fts5PoslistReaderNext(Fts5PoslistReader *pIter){
-  if( tdsqlite3Fts5PoslistNext64(pIter->a, pIter->n, &pIter->i, &pIter->iPos) ){
-    pIter->bEof = 1;
-  }
-  return pIter->bEof;
-}
-
-static int tdsqlite3Fts5PoslistReaderInit(
-  const u8 *a, int n,             /* Poslist buffer to iterate through */
-  Fts5PoslistReader *pIter        /* Iterator object to initialize */
-){
-  memset(pIter, 0, sizeof(*pIter));
-  pIter->a = a;
-  pIter->n = n;
-  tdsqlite3Fts5PoslistReaderNext(pIter);
-  return pIter->bEof;
-}
-
-/*
-** Append position iPos to the position list being accumulated in buffer
-** pBuf, which must be already be large enough to hold the new data.
-** The previous position written to this list is *piPrev. *piPrev is set
-** to iPos before returning.
-*/
-static void tdsqlite3Fts5PoslistSafeAppend(
-  Fts5Buffer *pBuf, 
-  i64 *piPrev, 
-  i64 iPos
-){
-  static const i64 colmask = ((i64)(0x7FFFFFFF)) << 32;
-  if( (iPos & colmask) != (*piPrev & colmask) ){
-    pBuf->p[pBuf->n++] = 1;
-    pBuf->n += tdsqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos>>32));
-    *piPrev = (iPos & colmask);
-  }
-  pBuf->n += tdsqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos-*piPrev)+2);
-  *piPrev = iPos;
-}
-
-static int tdsqlite3Fts5PoslistWriterAppend(
-  Fts5Buffer *pBuf, 
-  Fts5PoslistWriter *pWriter,
-  i64 iPos
-){
-  int rc = 0;   /* Initialized only to suppress erroneous warning from Clang */
-  if( fts5BufferGrow(&rc, pBuf, 5+5+5) ) return rc;
-  tdsqlite3Fts5PoslistSafeAppend(pBuf, &pWriter->iPrev, iPos);
-  return SQLITE_OK;
-}
-
-static void *tdsqlite3Fts5MallocZero(int *pRc, tdsqlite3_int64 nByte){
-  void *pRet = 0;
-  if( *pRc==SQLITE_OK ){
-    pRet = tdsqlite3_malloc64(nByte);
-    if( pRet==0 ){
-      if( nByte>0 ) *pRc = SQLITE_NOMEM;
-    }else{
-      memset(pRet, 0, (size_t)nByte);
-    }
-  }
-  return pRet;
-}
-
-/*
-** Return a nul-terminated copy of the string indicated by pIn. If nIn
-** is non-negative, then it is the length of the string in bytes. Otherwise,
-** the length of the string is determined using strlen().
-**
-** It is the responsibility of the caller to eventually free the returned
-** buffer using tdsqlite3_free(). If an OOM error occurs, NULL is returned. 
-*/
-static char *tdsqlite3Fts5Strndup(int *pRc, const char *pIn, int nIn){
-  char *zRet = 0;
-  if( *pRc==SQLITE_OK ){
-    if( nIn<0 ){
-      nIn = (int)strlen(pIn);
-    }
-    zRet = (char*)tdsqlite3_malloc(nIn+1);
-    if( zRet ){
-      memcpy(zRet, pIn, nIn);
-      zRet[nIn] = '\0';
-    }else{
-      *pRc = SQLITE_NOMEM;
-    }
-  }
-  return zRet;
-}
-
-
-/*
-** Return true if character 't' may be part of an FTS5 bareword, or false
-** otherwise. Characters that may be part of barewords:
-**
-**   * All non-ASCII characters,
-**   * The 52 upper and lower case ASCII characters, and
-**   * The 10 integer ASCII characters.
-**   * The underscore character "_" (0x5F).
-**   * The unicode "subsitute" character (0x1A).
-*/
-static int tdsqlite3Fts5IsBareword(char t){
-  u8 aBareword[128] = {
-    0, 0, 0, 0, 0, 0, 0, 0,    0, 0, 0, 0, 0, 0, 0, 0,   /* 0x00 .. 0x0F */
-    0, 0, 0, 0, 0, 0, 0, 0,    0, 0, 1, 0, 0, 0, 0, 0,   /* 0x10 .. 0x1F */
-    0, 0, 0, 0, 0, 0, 0, 0,    0, 0, 0, 0, 0, 0, 0, 0,   /* 0x20 .. 0x2F */
-    1, 1, 1, 1, 1, 1, 1, 1,    1, 1, 0, 0, 0, 0, 0, 0,   /* 0x30 .. 0x3F */
-    0, 1, 1, 1, 1, 1, 1, 1,    1, 1, 1, 1, 1, 1, 1, 1,   /* 0x40 .. 0x4F */
-    1, 1, 1, 1, 1, 1, 1, 1,    1, 1, 1, 0, 0, 0, 0, 1,   /* 0x50 .. 0x5F */
-    0, 1, 1, 1, 1, 1, 1, 1,    1, 1, 1, 1, 1, 1, 1, 1,   /* 0x60 .. 0x6F */
-    1, 1, 1, 1, 1, 1, 1, 1,    1, 1, 1, 0, 0, 0, 0, 0    /* 0x70 .. 0x7F */
-  };
-
-  return (t & 0x80) || aBareword[(int)t];
-}
-
-
-/*************************************************************************
-*/
-typedef struct Fts5TermsetEntry Fts5TermsetEntry;
-struct Fts5TermsetEntry {
-  char *pTerm;
-  int nTerm;
-  int iIdx;                       /* Index (main or aPrefix[] entry) */
-  Fts5TermsetEntry *pNext;
-};
-
-struct Fts5Termset {
-  Fts5TermsetEntry *apHash[512];
-};
-
-static int tdsqlite3Fts5TermsetNew(Fts5Termset **pp){
-  int rc = SQLITE_OK;
-  *pp = tdsqlite3Fts5MallocZero(&rc, sizeof(Fts5Termset));
-  return rc;
-}
-
-static int tdsqlite3Fts5TermsetAdd(
-  Fts5Termset *p, 
-  int iIdx,
-  const char *pTerm, int nTerm, 
-  int *pbPresent
-){
-  int rc = SQLITE_OK;
-  *pbPresent = 0;
-  if( p ){
-    int i;
-    u32 hash = 13;
-    Fts5TermsetEntry *pEntry;
-
-    /* Calculate a hash value for this term. This is the same hash checksum
-    ** used by the fts5_hash.c module. This is not important for correct
-    ** operation of the module, but is necessary to ensure that some tests
-    ** designed to produce hash table collisions really do work.  */
-    for(i=nTerm-1; i>=0; i--){
-      hash = (hash << 3) ^ hash ^ pTerm[i];
-    }
-    hash = (hash << 3) ^ hash ^ iIdx;
-    hash = hash % ArraySize(p->apHash);
-
-    for(pEntry=p->apHash[hash]; pEntry; pEntry=pEntry->pNext){
-      if( pEntry->iIdx==iIdx 
-          && pEntry->nTerm==nTerm 
-          && memcmp(pEntry->pTerm, pTerm, nTerm)==0 
-      ){
-        *pbPresent = 1;
-        break;
-      }
-    }
-
-    if( pEntry==0 ){
-      pEntry = tdsqlite3Fts5MallocZero(&rc, sizeof(Fts5TermsetEntry) + nTerm);
-      if( pEntry ){
-        pEntry->pTerm = (char*)&pEntry[1];
-        pEntry->nTerm = nTerm;
-        pEntry->iIdx = iIdx;
-        memcpy(pEntry->pTerm, pTerm, nTerm);
-        pEntry->pNext = p->apHash[hash];
-        p->apHash[hash] = pEntry;
-      }
-    }
-  }
-
-  return rc;
-}
-
-static void tdsqlite3Fts5TermsetFree(Fts5Termset *p){
-  if( p ){
-    u32 i;
-    for(i=0; i<ArraySize(p->apHash); i++){
-      Fts5TermsetEntry *pEntry = p->apHash[i];
-      while( pEntry ){
-        Fts5TermsetEntry *pDel = pEntry;
-        pEntry = pEntry->pNext;
-        tdsqlite3_free(pDel);
-      }
-    }
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** 2014 Jun 09
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This is an SQLite module implementing full-text search.
-*/
-
-
-/* #include "fts5Int.h" */
-
-#define FTS5_DEFAULT_PAGE_SIZE   4050
-#define FTS5_DEFAULT_AUTOMERGE      4
-#define FTS5_DEFAULT_USERMERGE      4
-#define FTS5_DEFAULT_CRISISMERGE   16
-#define FTS5_DEFAULT_HASHSIZE    (1024*1024)
-
-/* Maximum allowed page size */
-#define FTS5_MAX_PAGE_SIZE (64*1024)
-
-static int fts5_iswhitespace(char x){
-  return (x==' ');
-}
-
-static int fts5_isopenquote(char x){
-  return (x=='"' || x=='\'' || x=='[' || x=='`');
-}
-
-/*
-** Argument pIn points to a character that is part of a nul-terminated 
-** string. Return a pointer to the first character following *pIn in 
-** the string that is not a white-space character.
-*/
-static const char *fts5ConfigSkipWhitespace(const char *pIn){
-  const char *p = pIn;
-  if( p ){
-    while( fts5_iswhitespace(*p) ){ p++; }
-  }
-  return p;
-}
-
-/*
-** Argument pIn points to a character that is part of a nul-terminated 
-** string. Return a pointer to the first character following *pIn in 
-** the string that is not a "bareword" character.
-*/
-static const char *fts5ConfigSkipBareword(const char *pIn){
-  const char *p = pIn;
-  while ( tdsqlite3Fts5IsBareword(*p) ) p++;
-  if( p==pIn ) p = 0;
-  return p;
-}
-
-static int fts5_isdigit(char a){
-  return (a>='0' && a<='9');
-}
-
-
-
-static const char *fts5ConfigSkipLiteral(const char *pIn){
-  const char *p = pIn;
-  switch( *p ){
-    case 'n': case 'N':
-      if( tdsqlite3_strnicmp("null", p, 4)==0 ){
-        p = &p[4];
-      }else{
-        p = 0;
-      }
-      break;
-
-    case 'x': case 'X':
-      p++;
-      if( *p=='\'' ){
-        p++;
-        while( (*p>='a' && *p<='f') 
-            || (*p>='A' && *p<='F') 
-            || (*p>='0' && *p<='9') 
-            ){
-          p++;
-        }
-        if( *p=='\'' && 0==((p-pIn)%2) ){
-          p++;
-        }else{
-          p = 0;
-        }
-      }else{
-        p = 0;
-      }
-      break;
-
-    case '\'':
-      p++;
-      while( p ){
-        if( *p=='\'' ){
-          p++;
-          if( *p!='\'' ) break;
-        }
-        p++;
-        if( *p==0 ) p = 0;
-      }
-      break;
-
-    default:
-      /* maybe a number */
-      if( *p=='+' || *p=='-' ) p++;
-      while( fts5_isdigit(*p) ) p++;
-
-      /* At this point, if the literal was an integer, the parse is 
-      ** finished. Or, if it is a floating point value, it may continue
-      ** with either a decimal point or an 'E' character. */
-      if( *p=='.' && fts5_isdigit(p[1]) ){
-        p += 2;
-        while( fts5_isdigit(*p) ) p++;
-      }
-      if( p==pIn ) p = 0;
-
-      break;
-  }
-
-  return p;
-}
-
-/*
-** The first character of the string pointed to by argument z is guaranteed
-** to be an open-quote character (see function fts5_isopenquote()).
-**
-** This function searches for the corresponding close-quote character within
-** the string and, if found, dequotes the string in place and adds a new
-** nul-terminator byte.
-**
-** If the close-quote is found, the value returned is the byte offset of
-** the character immediately following it. Or, if the close-quote is not 
-** found, -1 is returned. If -1 is returned, the buffer is left in an 
-** undefined state.
-*/
-static int fts5Dequote(char *z){
-  char q;
-  int iIn = 1;
-  int iOut = 0;
-  q = z[0];
-
-  /* Set stack variable q to the close-quote character */
-  assert( q=='[' || q=='\'' || q=='"' || q=='`' );
-  if( q=='[' ) q = ']';  
-
-  while( z[iIn] ){
-    if( z[iIn]==q ){
-      if( z[iIn+1]!=q ){
-        /* Character iIn was the close quote. */
-        iIn++;
-        break;
-      }else{
-        /* Character iIn and iIn+1 form an escaped quote character. Skip
-        ** the input cursor past both and copy a single quote character 
-        ** to the output buffer. */
-        iIn += 2;
-        z[iOut++] = q;
-      }
-    }else{
-      z[iOut++] = z[iIn++];
-    }
-  }
-
-  z[iOut] = '\0';
-  return iIn;
-}
-
-/*
-** Convert an SQL-style quoted string into a normal string by removing
-** the quote characters.  The conversion is done in-place.  If the
-** input does not begin with a quote character, then this routine
-** is a no-op.
-**
-** Examples:
-**
-**     "abc"   becomes   abc
-**     'xyz'   becomes   xyz
-**     [pqr]   becomes   pqr
-**     `mno`   becomes   mno
-*/
-static void tdsqlite3Fts5Dequote(char *z){
-  char quote;                     /* Quote character (if any ) */
-
-  assert( 0==fts5_iswhitespace(z[0]) );
-  quote = z[0];
-  if( quote=='[' || quote=='\'' || quote=='"' || quote=='`' ){
-    fts5Dequote(z);
-  }
-}
-
-
-struct Fts5Enum {
-  const char *zName;
-  int eVal;
-};
-typedef struct Fts5Enum Fts5Enum;
-
-static int fts5ConfigSetEnum(
-  const Fts5Enum *aEnum, 
-  const char *zEnum, 
-  int *peVal
-){
-  int nEnum = (int)strlen(zEnum);
-  int i;
-  int iVal = -1;
-
-  for(i=0; aEnum[i].zName; i++){
-    if( tdsqlite3_strnicmp(aEnum[i].zName, zEnum, nEnum)==0 ){
-      if( iVal>=0 ) return SQLITE_ERROR;
-      iVal = aEnum[i].eVal;
-    }
-  }
-
-  *peVal = iVal;
-  return iVal<0 ? SQLITE_ERROR : SQLITE_OK;
-}
-
-/*
-** Parse a "special" CREATE VIRTUAL TABLE directive and update
-** configuration object pConfig as appropriate.
-**
-** If successful, object pConfig is updated and SQLITE_OK returned. If
-** an error occurs, an SQLite error code is returned and an error message
-** may be left in *pzErr. It is the responsibility of the caller to
-** eventually free any such error message using tdsqlite3_free().
-*/
-static int fts5ConfigParseSpecial(
-  Fts5Global *pGlobal,
-  Fts5Config *pConfig,            /* Configuration object to update */
-  const char *zCmd,               /* Special command to parse */
-  const char *zArg,               /* Argument to parse */
-  char **pzErr                    /* OUT: Error message */
-){
-  int rc = SQLITE_OK;
-  int nCmd = (int)strlen(zCmd);
-  if( tdsqlite3_strnicmp("prefix", zCmd, nCmd)==0 ){
-    const int nByte = sizeof(int) * FTS5_MAX_PREFIX_INDEXES;
-    const char *p;
-    int bFirst = 1;
-    if( pConfig->aPrefix==0 ){
-      pConfig->aPrefix = tdsqlite3Fts5MallocZero(&rc, nByte);
-      if( rc ) return rc;
-    }
-
-    p = zArg;
-    while( 1 ){
-      int nPre = 0;
-
-      while( p[0]==' ' ) p++;
-      if( bFirst==0 && p[0]==',' ){
-        p++;
-        while( p[0]==' ' ) p++;
-      }else if( p[0]=='\0' ){
-        break;
-      }
-      if( p[0]<'0' || p[0]>'9' ){
-        *pzErr = tdsqlite3_mprintf("malformed prefix=... directive");
-        rc = SQLITE_ERROR;
-        break;
-      }
-
-      if( pConfig->nPrefix==FTS5_MAX_PREFIX_INDEXES ){
-        *pzErr = tdsqlite3_mprintf(
-            "too many prefix indexes (max %d)", FTS5_MAX_PREFIX_INDEXES
-        );
-        rc = SQLITE_ERROR;
-        break;
-      }
-
-      while( p[0]>='0' && p[0]<='9' && nPre<1000 ){
-        nPre = nPre*10 + (p[0] - '0');
-        p++;
-      }
-
-      if( nPre<=0 || nPre>=1000 ){
-        *pzErr = tdsqlite3_mprintf("prefix length out of range (max 999)");
-        rc = SQLITE_ERROR;
-        break;
-      }
-
-      pConfig->aPrefix[pConfig->nPrefix] = nPre;
-      pConfig->nPrefix++;
-      bFirst = 0;
-    }
-    assert( pConfig->nPrefix<=FTS5_MAX_PREFIX_INDEXES );
-    return rc;
-  }
-
-  if( tdsqlite3_strnicmp("tokenize", zCmd, nCmd)==0 ){
-    const char *p = (const char*)zArg;
-    tdsqlite3_int64 nArg = strlen(zArg) + 1;
-    char **azArg = tdsqlite3Fts5MallocZero(&rc, sizeof(char*) * nArg);
-    char *pDel = tdsqlite3Fts5MallocZero(&rc, nArg * 2);
-    char *pSpace = pDel;
-
-    if( azArg && pSpace ){
-      if( pConfig->pTok ){
-        *pzErr = tdsqlite3_mprintf("multiple tokenize=... directives");
-        rc = SQLITE_ERROR;
-      }else{
-        for(nArg=0; p && *p; nArg++){
-          const char *p2 = fts5ConfigSkipWhitespace(p);
-          if( *p2=='\'' ){
-            p = fts5ConfigSkipLiteral(p2);
-          }else{
-            p = fts5ConfigSkipBareword(p2);
-          }
-          if( p ){
-            memcpy(pSpace, p2, p-p2);
-            azArg[nArg] = pSpace;
-            tdsqlite3Fts5Dequote(pSpace);
-            pSpace += (p - p2) + 1;
-            p = fts5ConfigSkipWhitespace(p);
-          }
-        }
-        if( p==0 ){
-          *pzErr = tdsqlite3_mprintf("parse error in tokenize directive");
-          rc = SQLITE_ERROR;
-        }else{
-          rc = tdsqlite3Fts5GetTokenizer(pGlobal, 
-              (const char**)azArg, (int)nArg, &pConfig->pTok, &pConfig->pTokApi,
-              pzErr
-          );
-        }
-      }
-    }
-
-    tdsqlite3_free(azArg);
-    tdsqlite3_free(pDel);
-    return rc;
-  }
-
-  if( tdsqlite3_strnicmp("content", zCmd, nCmd)==0 ){
-    if( pConfig->eContent!=FTS5_CONTENT_NORMAL ){
-      *pzErr = tdsqlite3_mprintf("multiple content=... directives");
-      rc = SQLITE_ERROR;
-    }else{
-      if( zArg[0] ){
-        pConfig->eContent = FTS5_CONTENT_EXTERNAL;
-        pConfig->zContent = tdsqlite3Fts5Mprintf(&rc, "%Q.%Q", pConfig->zDb,zArg);
-      }else{
-        pConfig->eContent = FTS5_CONTENT_NONE;
-      }
-    }
-    return rc;
-  }
-
-  if( tdsqlite3_strnicmp("content_rowid", zCmd, nCmd)==0 ){
-    if( pConfig->zContentRowid ){
-      *pzErr = tdsqlite3_mprintf("multiple content_rowid=... directives");
-      rc = SQLITE_ERROR;
-    }else{
-      pConfig->zContentRowid = tdsqlite3Fts5Strndup(&rc, zArg, -1);
-    }
-    return rc;
-  }
-
-  if( tdsqlite3_strnicmp("columnsize", zCmd, nCmd)==0 ){
-    if( (zArg[0]!='0' && zArg[0]!='1') || zArg[1]!='\0' ){
-      *pzErr = tdsqlite3_mprintf("malformed columnsize=... directive");
-      rc = SQLITE_ERROR;
-    }else{
-      pConfig->bColumnsize = (zArg[0]=='1');
-    }
-    return rc;
-  }
-
-  if( tdsqlite3_strnicmp("detail", zCmd, nCmd)==0 ){
-    const Fts5Enum aDetail[] = {
-      { "none", FTS5_DETAIL_NONE },
-      { "full", FTS5_DETAIL_FULL },
-      { "columns", FTS5_DETAIL_COLUMNS },
-      { 0, 0 }
-    };
-
-    if( (rc = fts5ConfigSetEnum(aDetail, zArg, &pConfig->eDetail)) ){
-      *pzErr = tdsqlite3_mprintf("malformed detail=... directive");
-    }
-    return rc;
-  }
-
-  *pzErr = tdsqlite3_mprintf("unrecognized option: \"%.*s\"", nCmd, zCmd);
-  return SQLITE_ERROR;
-}
-
-/*
-** Allocate an instance of the default tokenizer ("simple") at 
-** Fts5Config.pTokenizer. Return SQLITE_OK if successful, or an SQLite error
-** code if an error occurs.
-*/
-static int fts5ConfigDefaultTokenizer(Fts5Global *pGlobal, Fts5Config *pConfig){
-  assert( pConfig->pTok==0 && pConfig->pTokApi==0 );
-  return tdsqlite3Fts5GetTokenizer(
-      pGlobal, 0, 0, &pConfig->pTok, &pConfig->pTokApi, 0
-  );
-}
-
-/*
-** Gobble up the first bareword or quoted word from the input buffer zIn.
-** Return a pointer to the character immediately following the last in
-** the gobbled word if successful, or a NULL pointer otherwise (failed
-** to find close-quote character).
-**
-** Before returning, set pzOut to point to a new buffer containing a
-** nul-terminated, dequoted copy of the gobbled word. If the word was
-** quoted, *pbQuoted is also set to 1 before returning.
-**
-** If *pRc is other than SQLITE_OK when this function is called, it is
-** a no-op (NULL is returned). Otherwise, if an OOM occurs within this
-** function, *pRc is set to SQLITE_NOMEM before returning. *pRc is *not*
-** set if a parse error (failed to find close quote) occurs.
-*/
-static const char *fts5ConfigGobbleWord(
-  int *pRc,                       /* IN/OUT: Error code */
-  const char *zIn,                /* Buffer to gobble string/bareword from */
-  char **pzOut,                   /* OUT: malloc'd buffer containing str/bw */
-  int *pbQuoted                   /* OUT: Set to true if dequoting required */
-){
-  const char *zRet = 0;
-
-  tdsqlite3_int64 nIn = strlen(zIn);
-  char *zOut = tdsqlite3_malloc64(nIn+1);
-
-  assert( *pRc==SQLITE_OK );
-  *pbQuoted = 0;
-  *pzOut = 0;
-
-  if( zOut==0 ){
-    *pRc = SQLITE_NOMEM;
-  }else{
-    memcpy(zOut, zIn, (size_t)(nIn+1));
-    if( fts5_isopenquote(zOut[0]) ){
-      int ii = fts5Dequote(zOut);
-      zRet = &zIn[ii];
-      *pbQuoted = 1;
-    }else{
-      zRet = fts5ConfigSkipBareword(zIn);
-      if( zRet ){
-        zOut[zRet-zIn] = '\0';
-      }
-    }
-  }
-
-  if( zRet==0 ){
-    tdsqlite3_free(zOut);
-  }else{
-    *pzOut = zOut;
-  }
-
-  return zRet;
-}
-
-static int fts5ConfigParseColumn(
-  Fts5Config *p, 
-  char *zCol, 
-  char *zArg, 
-  char **pzErr
-){
-  int rc = SQLITE_OK;
-  if( 0==tdsqlite3_stricmp(zCol, FTS5_RANK_NAME) 
-   || 0==tdsqlite3_stricmp(zCol, FTS5_ROWID_NAME) 
-  ){
-    *pzErr = tdsqlite3_mprintf("reserved fts5 column name: %s", zCol);
-    rc = SQLITE_ERROR;
-  }else if( zArg ){
-    if( 0==tdsqlite3_stricmp(zArg, "unindexed") ){
-      p->abUnindexed[p->nCol] = 1;
-    }else{
-      *pzErr = tdsqlite3_mprintf("unrecognized column option: %s", zArg);
-      rc = SQLITE_ERROR;
-    }
-  }
-
-  p->azCol[p->nCol++] = zCol;
-  return rc;
-}
-
-/*
-** Populate the Fts5Config.zContentExprlist string.
-*/
-static int fts5ConfigMakeExprlist(Fts5Config *p){
-  int i;
-  int rc = SQLITE_OK;
-  Fts5Buffer buf = {0, 0, 0};
-
-  tdsqlite3Fts5BufferAppendPrintf(&rc, &buf, "T.%Q", p->zContentRowid);
-  if( p->eContent!=FTS5_CONTENT_NONE ){
-    for(i=0; i<p->nCol; i++){
-      if( p->eContent==FTS5_CONTENT_EXTERNAL ){
-        tdsqlite3Fts5BufferAppendPrintf(&rc, &buf, ", T.%Q", p->azCol[i]);
-      }else{
-        tdsqlite3Fts5BufferAppendPrintf(&rc, &buf, ", T.c%d", i);
-      }
-    }
-  }
-
-  assert( p->zContentExprlist==0 );
-  p->zContentExprlist = (char*)buf.p;
-  return rc;
-}
-
-/*
-** Arguments nArg/azArg contain the string arguments passed to the xCreate
-** or xConnect method of the virtual table. This function attempts to 
-** allocate an instance of Fts5Config containing the results of parsing
-** those arguments.
-**
-** If successful, SQLITE_OK is returned and *ppOut is set to point to the
-** new Fts5Config object. If an error occurs, an SQLite error code is 
-** returned, *ppOut is set to NULL and an error message may be left in
-** *pzErr. It is the responsibility of the caller to eventually free any 
-** such error message using tdsqlite3_free().
-*/
-static int tdsqlite3Fts5ConfigParse(
-  Fts5Global *pGlobal,
-  tdsqlite3 *db,
-  int nArg,                       /* Number of arguments */
-  const char **azArg,             /* Array of nArg CREATE VIRTUAL TABLE args */
-  Fts5Config **ppOut,             /* OUT: Results of parse */
-  char **pzErr                    /* OUT: Error message */
-){
-  int rc = SQLITE_OK;             /* Return code */
-  Fts5Config *pRet;               /* New object to return */
-  int i;
-  tdsqlite3_int64 nByte;
-
-  *ppOut = pRet = (Fts5Config*)tdsqlite3_malloc(sizeof(Fts5Config));
-  if( pRet==0 ) return SQLITE_NOMEM;
-  memset(pRet, 0, sizeof(Fts5Config));
-  pRet->db = db;
-  pRet->iCookie = -1;
-
-  nByte = nArg * (sizeof(char*) + sizeof(u8));
-  pRet->azCol = (char**)tdsqlite3Fts5MallocZero(&rc, nByte);
-  pRet->abUnindexed = (u8*)&pRet->azCol[nArg];
-  pRet->zDb = tdsqlite3Fts5Strndup(&rc, azArg[1], -1);
-  pRet->zName = tdsqlite3Fts5Strndup(&rc, azArg[2], -1);
-  pRet->bColumnsize = 1;
-  pRet->eDetail = FTS5_DETAIL_FULL;
-#ifdef SQLITE_DEBUG
-  pRet->bPrefixIndex = 1;
-#endif
-  if( rc==SQLITE_OK && tdsqlite3_stricmp(pRet->zName, FTS5_RANK_NAME)==0 ){
-    *pzErr = tdsqlite3_mprintf("reserved fts5 table name: %s", pRet->zName);
-    rc = SQLITE_ERROR;
-  }
-
-  for(i=3; rc==SQLITE_OK && i<nArg; i++){
-    const char *zOrig = azArg[i];
-    const char *z;
-    char *zOne = 0;
-    char *zTwo = 0;
-    int bOption = 0;
-    int bMustBeCol = 0;
-
-    z = fts5ConfigGobbleWord(&rc, zOrig, &zOne, &bMustBeCol);
-    z = fts5ConfigSkipWhitespace(z);
-    if( z && *z=='=' ){
-      bOption = 1;
-      z++;
-      if( bMustBeCol ) z = 0;
-    }
-    z = fts5ConfigSkipWhitespace(z);
-    if( z && z[0] ){
-      int bDummy;
-      z = fts5ConfigGobbleWord(&rc, z, &zTwo, &bDummy);
-      if( z && z[0] ) z = 0;
-    }
-
-    if( rc==SQLITE_OK ){
-      if( z==0 ){
-        *pzErr = tdsqlite3_mprintf("parse error in \"%s\"", zOrig);
-        rc = SQLITE_ERROR;
-      }else{
-        if( bOption ){
-          rc = fts5ConfigParseSpecial(pGlobal, pRet, zOne, zTwo?zTwo:"", pzErr);
-        }else{
-          rc = fts5ConfigParseColumn(pRet, zOne, zTwo, pzErr);
-          zOne = 0;
-        }
-      }
-    }
-
-    tdsqlite3_free(zOne);
-    tdsqlite3_free(zTwo);
-  }
-
-  /* If a tokenizer= option was successfully parsed, the tokenizer has
-  ** already been allocated. Otherwise, allocate an instance of the default
-  ** tokenizer (unicode61) now.  */
-  if( rc==SQLITE_OK && pRet->pTok==0 ){
-    rc = fts5ConfigDefaultTokenizer(pGlobal, pRet);
-  }
-
-  /* If no zContent option was specified, fill in the default values. */
-  if( rc==SQLITE_OK && pRet->zContent==0 ){
-    const char *zTail = 0;
-    assert( pRet->eContent==FTS5_CONTENT_NORMAL 
-         || pRet->eContent==FTS5_CONTENT_NONE 
-    );
-    if( pRet->eContent==FTS5_CONTENT_NORMAL ){
-      zTail = "content";
-    }else if( pRet->bColumnsize ){
-      zTail = "docsize";
-    }
-
-    if( zTail ){
-      pRet->zContent = tdsqlite3Fts5Mprintf(
-          &rc, "%Q.'%q_%s'", pRet->zDb, pRet->zName, zTail
-      );
-    }
-  }
-
-  if( rc==SQLITE_OK && pRet->zContentRowid==0 ){
-    pRet->zContentRowid = tdsqlite3Fts5Strndup(&rc, "rowid", -1);
-  }
-
-  /* Formulate the zContentExprlist text */
-  if( rc==SQLITE_OK ){
-    rc = fts5ConfigMakeExprlist(pRet);
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3Fts5ConfigFree(pRet);
-    *ppOut = 0;
-  }
-  return rc;
-}
-
-/*
-** Free the configuration object passed as the only argument.
-*/
-static void tdsqlite3Fts5ConfigFree(Fts5Config *pConfig){
-  if( pConfig ){
-    int i;
-    if( pConfig->pTok ){
-      pConfig->pTokApi->xDelete(pConfig->pTok);
-    }
-    tdsqlite3_free(pConfig->zDb);
-    tdsqlite3_free(pConfig->zName);
-    for(i=0; i<pConfig->nCol; i++){
-      tdsqlite3_free(pConfig->azCol[i]);
-    }
-    tdsqlite3_free(pConfig->azCol);
-    tdsqlite3_free(pConfig->aPrefix);
-    tdsqlite3_free(pConfig->zRank);
-    tdsqlite3_free(pConfig->zRankArgs);
-    tdsqlite3_free(pConfig->zContent);
-    tdsqlite3_free(pConfig->zContentRowid);
-    tdsqlite3_free(pConfig->zContentExprlist);
-    tdsqlite3_free(pConfig);
-  }
-}
-
-/*
-** Call tdsqlite3_declare_vtab() based on the contents of the configuration
-** object passed as the only argument. Return SQLITE_OK if successful, or
-** an SQLite error code if an error occurs.
-*/
-static int tdsqlite3Fts5ConfigDeclareVtab(Fts5Config *pConfig){
-  int i;
-  int rc = SQLITE_OK;
-  char *zSql;
-
-  zSql = tdsqlite3Fts5Mprintf(&rc, "CREATE TABLE x(");
-  for(i=0; zSql && i<pConfig->nCol; i++){
-    const char *zSep = (i==0?"":", ");
-    zSql = tdsqlite3Fts5Mprintf(&rc, "%z%s%Q", zSql, zSep, pConfig->azCol[i]);
-  }
-  zSql = tdsqlite3Fts5Mprintf(&rc, "%z, %Q HIDDEN, %s HIDDEN)", 
-      zSql, pConfig->zName, FTS5_RANK_NAME
-  );
-
-  assert( zSql || rc==SQLITE_NOMEM );
-  if( zSql ){
-    rc = tdsqlite3_declare_vtab(pConfig->db, zSql);
-    tdsqlite3_free(zSql);
-  }
- 
-  return rc;
-}
-
-/*
-** Tokenize the text passed via the second and third arguments.
-**
-** The callback is invoked once for each token in the input text. The
-** arguments passed to it are, in order:
-**
-**     void *pCtx          // Copy of 4th argument to tdsqlite3Fts5Tokenize()
-**     const char *pToken  // Pointer to buffer containing token
-**     int nToken          // Size of token in bytes
-**     int iStart          // Byte offset of start of token within input text
-**     int iEnd            // Byte offset of end of token within input text
-**     int iPos            // Position of token in input (first token is 0)
-**
-** If the callback returns a non-zero value the tokenization is abandoned
-** and no further callbacks are issued. 
-**
-** This function returns SQLITE_OK if successful or an SQLite error code
-** if an error occurs. If the tokenization was abandoned early because
-** the callback returned SQLITE_DONE, this is not an error and this function
-** still returns SQLITE_OK. Or, if the tokenization was abandoned early
-** because the callback returned another non-zero value, it is assumed
-** to be an SQLite error code and returned to the caller.
-*/
-static int tdsqlite3Fts5Tokenize(
-  Fts5Config *pConfig,            /* FTS5 Configuration object */
-  int flags,                      /* FTS5_TOKENIZE_* flags */
-  const char *pText, int nText,   /* Text to tokenize */
-  void *pCtx,                     /* Context passed to xToken() */
-  int (*xToken)(void*, int, const char*, int, int, int)    /* Callback */
-){
-  if( pText==0 ) return SQLITE_OK;
-  return pConfig->pTokApi->xTokenize(
-      pConfig->pTok, pCtx, flags, pText, nText, xToken
-  );
-}
-
-/*
-** Argument pIn points to the first character in what is expected to be
-** a comma-separated list of SQL literals followed by a ')' character.
-** If it actually is this, return a pointer to the ')'. Otherwise, return
-** NULL to indicate a parse error.
-*/
-static const char *fts5ConfigSkipArgs(const char *pIn){
-  const char *p = pIn;
-  
-  while( 1 ){
-    p = fts5ConfigSkipWhitespace(p);
-    p = fts5ConfigSkipLiteral(p);
-    p = fts5ConfigSkipWhitespace(p);
-    if( p==0 || *p==')' ) break;
-    if( *p!=',' ){
-      p = 0;
-      break;
-    }
-    p++;
-  }
-
-  return p;
-}
-
-/*
-** Parameter zIn contains a rank() function specification. The format of 
-** this is:
-**
-**   + Bareword (function name)
-**   + Open parenthesis - "("
-**   + Zero or more SQL literals in a comma separated list
-**   + Close parenthesis - ")"
-*/
-static int tdsqlite3Fts5ConfigParseRank(
-  const char *zIn,                /* Input string */
-  char **pzRank,                  /* OUT: Rank function name */
-  char **pzRankArgs               /* OUT: Rank function arguments */
-){
-  const char *p = zIn;
-  const char *pRank;
-  char *zRank = 0;
-  char *zRankArgs = 0;
-  int rc = SQLITE_OK;
-
-  *pzRank = 0;
-  *pzRankArgs = 0;
-
-  if( p==0 ){
-    rc = SQLITE_ERROR;
-  }else{
-    p = fts5ConfigSkipWhitespace(p);
-    pRank = p;
-    p = fts5ConfigSkipBareword(p);
-
-    if( p ){
-      zRank = tdsqlite3Fts5MallocZero(&rc, 1 + p - pRank);
-      if( zRank ) memcpy(zRank, pRank, p-pRank);
-    }else{
-      rc = SQLITE_ERROR;
-    }
-
-    if( rc==SQLITE_OK ){
-      p = fts5ConfigSkipWhitespace(p);
-      if( *p!='(' ) rc = SQLITE_ERROR;
-      p++;
-    }
-    if( rc==SQLITE_OK ){
-      const char *pArgs; 
-      p = fts5ConfigSkipWhitespace(p);
-      pArgs = p;
-      if( *p!=')' ){
-        p = fts5ConfigSkipArgs(p);
-        if( p==0 ){
-          rc = SQLITE_ERROR;
-        }else{
-          zRankArgs = tdsqlite3Fts5MallocZero(&rc, 1 + p - pArgs);
-          if( zRankArgs ) memcpy(zRankArgs, pArgs, p-pArgs);
-        }
-      }
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_free(zRank);
-    assert( zRankArgs==0 );
-  }else{
-    *pzRank = zRank;
-    *pzRankArgs = zRankArgs;
-  }
-  return rc;
-}
-
-static int tdsqlite3Fts5ConfigSetValue(
-  Fts5Config *pConfig, 
-  const char *zKey, 
-  tdsqlite3_value *pVal,
-  int *pbBadkey
-){
-  int rc = SQLITE_OK;
-
-  if( 0==tdsqlite3_stricmp(zKey, "pgsz") ){
-    int pgsz = 0;
-    if( SQLITE_INTEGER==tdsqlite3_value_numeric_type(pVal) ){
-      pgsz = tdsqlite3_value_int(pVal);
-    }
-    if( pgsz<32 || pgsz>FTS5_MAX_PAGE_SIZE ){
-      *pbBadkey = 1;
-    }else{
-      pConfig->pgsz = pgsz;
-    }
-  }
-
-  else if( 0==tdsqlite3_stricmp(zKey, "hashsize") ){
-    int nHashSize = -1;
-    if( SQLITE_INTEGER==tdsqlite3_value_numeric_type(pVal) ){
-      nHashSize = tdsqlite3_value_int(pVal);
-    }
-    if( nHashSize<=0 ){
-      *pbBadkey = 1;
-    }else{
-      pConfig->nHashSize = nHashSize;
-    }
-  }
-
-  else if( 0==tdsqlite3_stricmp(zKey, "automerge") ){
-    int nAutomerge = -1;
-    if( SQLITE_INTEGER==tdsqlite3_value_numeric_type(pVal) ){
-      nAutomerge = tdsqlite3_value_int(pVal);
-    }
-    if( nAutomerge<0 || nAutomerge>64 ){
-      *pbBadkey = 1;
-    }else{
-      if( nAutomerge==1 ) nAutomerge = FTS5_DEFAULT_AUTOMERGE;
-      pConfig->nAutomerge = nAutomerge;
-    }
-  }
-
-  else if( 0==tdsqlite3_stricmp(zKey, "usermerge") ){
-    int nUsermerge = -1;
-    if( SQLITE_INTEGER==tdsqlite3_value_numeric_type(pVal) ){
-      nUsermerge = tdsqlite3_value_int(pVal);
-    }
-    if( nUsermerge<2 || nUsermerge>16 ){
-      *pbBadkey = 1;
-    }else{
-      pConfig->nUsermerge = nUsermerge;
-    }
-  }
-
-  else if( 0==tdsqlite3_stricmp(zKey, "crisismerge") ){
-    int nCrisisMerge = -1;
-    if( SQLITE_INTEGER==tdsqlite3_value_numeric_type(pVal) ){
-      nCrisisMerge = tdsqlite3_value_int(pVal);
-    }
-    if( nCrisisMerge<0 ){
-      *pbBadkey = 1;
-    }else{
-      if( nCrisisMerge<=1 ) nCrisisMerge = FTS5_DEFAULT_CRISISMERGE;
-      if( nCrisisMerge>=FTS5_MAX_SEGMENT ) nCrisisMerge = FTS5_MAX_SEGMENT-1;
-      pConfig->nCrisisMerge = nCrisisMerge;
-    }
-  }
-
-  else if( 0==tdsqlite3_stricmp(zKey, "rank") ){
-    const char *zIn = (const char*)tdsqlite3_value_text(pVal);
-    char *zRank;
-    char *zRankArgs;
-    rc = tdsqlite3Fts5ConfigParseRank(zIn, &zRank, &zRankArgs);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_free(pConfig->zRank);
-      tdsqlite3_free(pConfig->zRankArgs);
-      pConfig->zRank = zRank;
-      pConfig->zRankArgs = zRankArgs;
-    }else if( rc==SQLITE_ERROR ){
-      rc = SQLITE_OK;
-      *pbBadkey = 1;
-    }
-  }else{
-    *pbBadkey = 1;
-  }
-  return rc;
-}
-
-/*
-** Load the contents of the %_config table into memory.
-*/
-static int tdsqlite3Fts5ConfigLoad(Fts5Config *pConfig, int iCookie){
-  const char *zSelect = "SELECT k, v FROM %Q.'%q_config'";
-  char *zSql;
-  tdsqlite3_stmt *p = 0;
-  int rc = SQLITE_OK;
-  int iVersion = 0;
-
-  /* Set default values */
-  pConfig->pgsz = FTS5_DEFAULT_PAGE_SIZE;
-  pConfig->nAutomerge = FTS5_DEFAULT_AUTOMERGE;
-  pConfig->nUsermerge = FTS5_DEFAULT_USERMERGE;
-  pConfig->nCrisisMerge = FTS5_DEFAULT_CRISISMERGE;
-  pConfig->nHashSize = FTS5_DEFAULT_HASHSIZE;
-
-  zSql = tdsqlite3Fts5Mprintf(&rc, zSelect, pConfig->zDb, pConfig->zName);
-  if( zSql ){
-    rc = tdsqlite3_prepare_v2(pConfig->db, zSql, -1, &p, 0);
-    tdsqlite3_free(zSql);
-  }
-
-  assert( rc==SQLITE_OK || p==0 );
-  if( rc==SQLITE_OK ){
-    while( SQLITE_ROW==tdsqlite3_step(p) ){
-      const char *zK = (const char*)tdsqlite3_column_text(p, 0);
-      tdsqlite3_value *pVal = tdsqlite3_column_value(p, 1);
-      if( 0==tdsqlite3_stricmp(zK, "version") ){
-        iVersion = tdsqlite3_value_int(pVal);
-      }else{
-        int bDummy = 0;
-        tdsqlite3Fts5ConfigSetValue(pConfig, zK, pVal, &bDummy);
-      }
-    }
-    rc = tdsqlite3_finalize(p);
-  }
-  
-  if( rc==SQLITE_OK && iVersion!=FTS5_CURRENT_VERSION ){
-    rc = SQLITE_ERROR;
-    if( pConfig->pzErrmsg ){
-      assert( 0==*pConfig->pzErrmsg );
-      *pConfig->pzErrmsg = tdsqlite3_mprintf(
-          "invalid fts5 file format (found %d, expected %d) - run 'rebuild'",
-          iVersion, FTS5_CURRENT_VERSION
-      );
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    pConfig->iCookie = iCookie;
-  }
-  return rc;
-}
-
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-*/
-
-
-
-/* #include "fts5Int.h" */
-/* #include "fts5parse.h" */
-
-/*
-** All token types in the generated fts5parse.h file are greater than 0.
-*/
-#define FTS5_EOF 0
-
-#define FTS5_LARGEST_INT64  (0xffffffff|(((i64)0x7fffffff)<<32))
-
-typedef struct Fts5ExprTerm Fts5ExprTerm;
-
-/*
-** Functions generated by lemon from fts5parse.y.
-*/
-static void *tdsqlite3Fts5ParserAlloc(void *(*mallocProc)(u64));
-static void tdsqlite3Fts5ParserFree(void*, void (*freeProc)(void*));
-static void tdsqlite3Fts5Parser(void*, int, Fts5Token, Fts5Parse*);
-#ifndef NDEBUG
-/* #include <stdio.h> */
-static void tdsqlite3Fts5ParserTrace(FILE*, char*);
-#endif
-static int tdsqlite3Fts5ParserFallback(int);
-
-
-struct Fts5Expr {
-  Fts5Index *pIndex;
-  Fts5Config *pConfig;
-  Fts5ExprNode *pRoot;
-  int bDesc;                      /* Iterate in descending rowid order */
-  int nPhrase;                    /* Number of phrases in expression */
-  Fts5ExprPhrase **apExprPhrase;  /* Pointers to phrase objects */
-};
-
-/*
-** eType:
-**   Expression node type. Always one of:
-**
-**       FTS5_AND                 (nChild, apChild valid)
-**       FTS5_OR                  (nChild, apChild valid)
-**       FTS5_NOT                 (nChild, apChild valid)
-**       FTS5_STRING              (pNear valid)
-**       FTS5_TERM                (pNear valid)
-*/
-struct Fts5ExprNode {
-  int eType;                      /* Node type */
-  int bEof;                       /* True at EOF */
-  int bNomatch;                   /* True if entry is not a match */
-
-  /* Next method for this node. */
-  int (*xNext)(Fts5Expr*, Fts5ExprNode*, int, i64);
-
-  i64 iRowid;                     /* Current rowid */
-  Fts5ExprNearset *pNear;         /* For FTS5_STRING - cluster of phrases */
-
-  /* Child nodes. For a NOT node, this array always contains 2 entries. For 
-  ** AND or OR nodes, it contains 2 or more entries.  */
-  int nChild;                     /* Number of child nodes */
-  Fts5ExprNode *apChild[1];       /* Array of child nodes */
-};
-
-#define Fts5NodeIsString(p) ((p)->eType==FTS5_TERM || (p)->eType==FTS5_STRING)
-
-/*
-** Invoke the xNext method of an Fts5ExprNode object. This macro should be
-** used as if it has the same signature as the xNext() methods themselves.
-*/
-#define fts5ExprNodeNext(a,b,c,d) (b)->xNext((a), (b), (c), (d))
-
-/*
-** An instance of the following structure represents a single search term
-** or term prefix.
-*/
-struct Fts5ExprTerm {
-  u8 bPrefix;                     /* True for a prefix term */
-  u8 bFirst;                      /* True if token must be first in column */
-  char *zTerm;                    /* nul-terminated term */
-  Fts5IndexIter *pIter;           /* Iterator for this term */
-  Fts5ExprTerm *pSynonym;         /* Pointer to first in list of synonyms */
-};
-
-/*
-** A phrase. One or more terms that must appear in a contiguous sequence
-** within a document for it to match.
-*/
-struct Fts5ExprPhrase {
-  Fts5ExprNode *pNode;            /* FTS5_STRING node this phrase is part of */
-  Fts5Buffer poslist;             /* Current position list */
-  int nTerm;                      /* Number of entries in aTerm[] */
-  Fts5ExprTerm aTerm[1];          /* Terms that make up this phrase */
-};
-
-/*
-** One or more phrases that must appear within a certain token distance of
-** each other within each matching document.
-*/
-struct Fts5ExprNearset {
-  int nNear;                      /* NEAR parameter */
-  Fts5Colset *pColset;            /* Columns to search (NULL -> all columns) */
-  int nPhrase;                    /* Number of entries in aPhrase[] array */
-  Fts5ExprPhrase *apPhrase[1];    /* Array of phrase pointers */
-};
-
-
-/*
-** Parse context.
-*/
-struct Fts5Parse {
-  Fts5Config *pConfig;
-  char *zErr;
-  int rc;
-  int nPhrase;                    /* Size of apPhrase array */
-  Fts5ExprPhrase **apPhrase;      /* Array of all phrases */
-  Fts5ExprNode *pExpr;            /* Result of a successful parse */
-};
-
-static void tdsqlite3Fts5ParseError(Fts5Parse *pParse, const char *zFmt, ...){
-  va_list ap;
-  va_start(ap, zFmt);
-  if( pParse->rc==SQLITE_OK ){
-    pParse->zErr = tdsqlite3_vmprintf(zFmt, ap);
-    pParse->rc = SQLITE_ERROR;
-  }
-  va_end(ap);
-}
-
-static int fts5ExprIsspace(char t){
-  return t==' ' || t=='\t' || t=='\n' || t=='\r';
-}
-
-/*
-** Read the first token from the nul-terminated string at *pz.
-*/
-static int fts5ExprGetToken(
-  Fts5Parse *pParse, 
-  const char **pz,                /* IN/OUT: Pointer into buffer */
-  Fts5Token *pToken
-){
-  const char *z = *pz;
-  int tok;
-
-  /* Skip past any whitespace */
-  while( fts5ExprIsspace(*z) ) z++;
-
-  pToken->p = z;
-  pToken->n = 1;
-  switch( *z ){
-    case '(':  tok = FTS5_LP;    break;
-    case ')':  tok = FTS5_RP;    break;
-    case '{':  tok = FTS5_LCP;   break;
-    case '}':  tok = FTS5_RCP;   break;
-    case ':':  tok = FTS5_COLON; break;
-    case ',':  tok = FTS5_COMMA; break;
-    case '+':  tok = FTS5_PLUS;  break;
-    case '*':  tok = FTS5_STAR;  break;
-    case '-':  tok = FTS5_MINUS; break;
-    case '^':  tok = FTS5_CARET; break;
-    case '\0': tok = FTS5_EOF;   break;
-
-    case '"': {
-      const char *z2;
-      tok = FTS5_STRING;
-
-      for(z2=&z[1]; 1; z2++){
-        if( z2[0]=='"' ){
-          z2++;
-          if( z2[0]!='"' ) break;
-        }
-        if( z2[0]=='\0' ){
-          tdsqlite3Fts5ParseError(pParse, "unterminated string");
-          return FTS5_EOF;
-        }
-      }
-      pToken->n = (z2 - z);
-      break;
-    }
-
-    default: {
-      const char *z2;
-      if( tdsqlite3Fts5IsBareword(z[0])==0 ){
-        tdsqlite3Fts5ParseError(pParse, "fts5: syntax error near \"%.1s\"", z);
-        return FTS5_EOF;
-      }
-      tok = FTS5_STRING;
-      for(z2=&z[1]; tdsqlite3Fts5IsBareword(*z2); z2++);
-      pToken->n = (z2 - z);
-      if( pToken->n==2 && memcmp(pToken->p, "OR", 2)==0 )  tok = FTS5_OR;
-      if( pToken->n==3 && memcmp(pToken->p, "NOT", 3)==0 ) tok = FTS5_NOT;
-      if( pToken->n==3 && memcmp(pToken->p, "AND", 3)==0 ) tok = FTS5_AND;
-      break;
-    }
-  }
-
-  *pz = &pToken->p[pToken->n];
-  return tok;
-}
-
-static void *fts5ParseAlloc(u64 t){ return tdsqlite3_malloc64((tdsqlite3_int64)t);}
-static void fts5ParseFree(void *p){ tdsqlite3_free(p); }
-
-static int tdsqlite3Fts5ExprNew(
-  Fts5Config *pConfig,            /* FTS5 Configuration */
-  int iCol,
-  const char *zExpr,              /* Expression text */
-  Fts5Expr **ppNew, 
-  char **pzErr
-){
-  Fts5Parse sParse;
-  Fts5Token token;
-  const char *z = zExpr;
-  int t;                          /* Next token type */
-  void *pEngine;
-  Fts5Expr *pNew;
-
-  *ppNew = 0;
-  *pzErr = 0;
-  memset(&sParse, 0, sizeof(sParse));
-  pEngine = tdsqlite3Fts5ParserAlloc(fts5ParseAlloc);
-  if( pEngine==0 ){ return SQLITE_NOMEM; }
-  sParse.pConfig = pConfig;
-
-  do {
-    t = fts5ExprGetToken(&sParse, &z, &token);
-    tdsqlite3Fts5Parser(pEngine, t, token, &sParse);
-  }while( sParse.rc==SQLITE_OK && t!=FTS5_EOF );
-  tdsqlite3Fts5ParserFree(pEngine, fts5ParseFree);
-
-  /* If the LHS of the MATCH expression was a user column, apply the
-  ** implicit column-filter.  */
-  if( iCol<pConfig->nCol && sParse.pExpr && sParse.rc==SQLITE_OK ){
-    int n = sizeof(Fts5Colset);
-    Fts5Colset *pColset = (Fts5Colset*)tdsqlite3Fts5MallocZero(&sParse.rc, n);
-    if( pColset ){
-      pColset->nCol = 1;
-      pColset->aiCol[0] = iCol;
-      tdsqlite3Fts5ParseSetColset(&sParse, sParse.pExpr, pColset);
-    }
-  }
-
-  assert( sParse.rc!=SQLITE_OK || sParse.zErr==0 );
-  if( sParse.rc==SQLITE_OK ){
-    *ppNew = pNew = tdsqlite3_malloc(sizeof(Fts5Expr));
-    if( pNew==0 ){
-      sParse.rc = SQLITE_NOMEM;
-      tdsqlite3Fts5ParseNodeFree(sParse.pExpr);
-    }else{
-      if( !sParse.pExpr ){
-        const int nByte = sizeof(Fts5ExprNode);
-        pNew->pRoot = (Fts5ExprNode*)tdsqlite3Fts5MallocZero(&sParse.rc, nByte);
-        if( pNew->pRoot ){
-          pNew->pRoot->bEof = 1;
-        }
-      }else{
-        pNew->pRoot = sParse.pExpr;
-      }
-      pNew->pIndex = 0;
-      pNew->pConfig = pConfig;
-      pNew->apExprPhrase = sParse.apPhrase;
-      pNew->nPhrase = sParse.nPhrase;
-      sParse.apPhrase = 0;
-    }
-  }else{
-    tdsqlite3Fts5ParseNodeFree(sParse.pExpr);
-  }
-
-  tdsqlite3_free(sParse.apPhrase);
-  *pzErr = sParse.zErr;
-  return sParse.rc;
-}
-
-/*
-** Free the expression node object passed as the only argument.
-*/
-static void tdsqlite3Fts5ParseNodeFree(Fts5ExprNode *p){
-  if( p ){
-    int i;
-    for(i=0; i<p->nChild; i++){
-      tdsqlite3Fts5ParseNodeFree(p->apChild[i]);
-    }
-    tdsqlite3Fts5ParseNearsetFree(p->pNear);
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** Free the expression object passed as the only argument.
-*/
-static void tdsqlite3Fts5ExprFree(Fts5Expr *p){
-  if( p ){
-    tdsqlite3Fts5ParseNodeFree(p->pRoot);
-    tdsqlite3_free(p->apExprPhrase);
-    tdsqlite3_free(p);
-  }
-}
-
-static int tdsqlite3Fts5ExprAnd(Fts5Expr **pp1, Fts5Expr *p2){
-  Fts5Parse sParse;
-  memset(&sParse, 0, sizeof(sParse));
-
-  if( *pp1 ){
-    Fts5Expr *p1 = *pp1;
-    int nPhrase = p1->nPhrase + p2->nPhrase;
-
-    p1->pRoot = tdsqlite3Fts5ParseNode(&sParse, FTS5_AND, p1->pRoot, p2->pRoot,0);
-    p2->pRoot = 0;
-
-    if( sParse.rc==SQLITE_OK ){
-      Fts5ExprPhrase **ap = (Fts5ExprPhrase**)tdsqlite3_realloc(
-          p1->apExprPhrase, nPhrase * sizeof(Fts5ExprPhrase*)
-      );
-      if( ap==0 ){
-        sParse.rc = SQLITE_NOMEM;
-      }else{
-        int i;
-        memmove(&ap[p2->nPhrase], ap, p1->nPhrase*sizeof(Fts5ExprPhrase*));
-        for(i=0; i<p2->nPhrase; i++){
-          ap[i] = p2->apExprPhrase[i];
-        }
-        p1->nPhrase = nPhrase;
-        p1->apExprPhrase = ap;
-      }
-    }
-    tdsqlite3_free(p2->apExprPhrase);
-    tdsqlite3_free(p2);
-  }else{
-    *pp1 = p2;
-  }
-
-  return sParse.rc;
-}
-
-/*
-** Argument pTerm must be a synonym iterator. Return the current rowid
-** that it points to.
-*/
-static i64 fts5ExprSynonymRowid(Fts5ExprTerm *pTerm, int bDesc, int *pbEof){
-  i64 iRet = 0;
-  int bRetValid = 0;
-  Fts5ExprTerm *p;
-
-  assert( pTerm->pSynonym );
-  assert( bDesc==0 || bDesc==1 );
-  for(p=pTerm; p; p=p->pSynonym){
-    if( 0==tdsqlite3Fts5IterEof(p->pIter) ){
-      i64 iRowid = p->pIter->iRowid;
-      if( bRetValid==0 || (bDesc!=(iRowid<iRet)) ){
-        iRet = iRowid;
-        bRetValid = 1;
-      }
-    }
-  }
-
-  if( pbEof && bRetValid==0 ) *pbEof = 1;
-  return iRet;
-}
-
-/*
-** Argument pTerm must be a synonym iterator.
-*/
-static int fts5ExprSynonymList(
-  Fts5ExprTerm *pTerm, 
-  i64 iRowid,
-  Fts5Buffer *pBuf,               /* Use this buffer for space if required */
-  u8 **pa, int *pn
-){
-  Fts5PoslistReader aStatic[4];
-  Fts5PoslistReader *aIter = aStatic;
-  int nIter = 0;
-  int nAlloc = 4;
-  int rc = SQLITE_OK;
-  Fts5ExprTerm *p;
-
-  assert( pTerm->pSynonym );
-  for(p=pTerm; p; p=p->pSynonym){
-    Fts5IndexIter *pIter = p->pIter;
-    if( tdsqlite3Fts5IterEof(pIter)==0 && pIter->iRowid==iRowid ){
-      if( pIter->nData==0 ) continue;
-      if( nIter==nAlloc ){
-        tdsqlite3_int64 nByte = sizeof(Fts5PoslistReader) * nAlloc * 2;
-        Fts5PoslistReader *aNew = (Fts5PoslistReader*)tdsqlite3_malloc64(nByte);
-        if( aNew==0 ){
-          rc = SQLITE_NOMEM;
-          goto synonym_poslist_out;
-        }
-        memcpy(aNew, aIter, sizeof(Fts5PoslistReader) * nIter);
-        nAlloc = nAlloc*2;
-        if( aIter!=aStatic ) tdsqlite3_free(aIter);
-        aIter = aNew;
-      }
-      tdsqlite3Fts5PoslistReaderInit(pIter->pData, pIter->nData, &aIter[nIter]);
-      assert( aIter[nIter].bEof==0 );
-      nIter++;
-    }
-  }
-
-  if( nIter==1 ){
-    *pa = (u8*)aIter[0].a;
-    *pn = aIter[0].n;
-  }else{
-    Fts5PoslistWriter writer = {0};
-    i64 iPrev = -1;
-    fts5BufferZero(pBuf);
-    while( 1 ){
-      int i;
-      i64 iMin = FTS5_LARGEST_INT64;
-      for(i=0; i<nIter; i++){
-        if( aIter[i].bEof==0 ){
-          if( aIter[i].iPos==iPrev ){
-            if( tdsqlite3Fts5PoslistReaderNext(&aIter[i]) ) continue;
-          }
-          if( aIter[i].iPos<iMin ){
-            iMin = aIter[i].iPos;
-          }
-        }
-      }
-      if( iMin==FTS5_LARGEST_INT64 || rc!=SQLITE_OK ) break;
-      rc = tdsqlite3Fts5PoslistWriterAppend(pBuf, &writer, iMin);
-      iPrev = iMin;
-    }
-    if( rc==SQLITE_OK ){
-      *pa = pBuf->p;
-      *pn = pBuf->n;
-    }
-  }
-
- synonym_poslist_out:
-  if( aIter!=aStatic ) tdsqlite3_free(aIter);
-  return rc;
-}
-
-
-/*
-** All individual term iterators in pPhrase are guaranteed to be valid and
-** pointing to the same rowid when this function is called. This function 
-** checks if the current rowid really is a match, and if so populates
-** the pPhrase->poslist buffer accordingly. Output parameter *pbMatch
-** is set to true if this is really a match, or false otherwise.
-**
-** SQLITE_OK is returned if an error occurs, or an SQLite error code 
-** otherwise. It is not considered an error code if the current rowid is 
-** not a match.
-*/
-static int fts5ExprPhraseIsMatch(
-  Fts5ExprNode *pNode,            /* Node pPhrase belongs to */
-  Fts5ExprPhrase *pPhrase,        /* Phrase object to initialize */
-  int *pbMatch                    /* OUT: Set to true if really a match */
-){
-  Fts5PoslistWriter writer = {0};
-  Fts5PoslistReader aStatic[4];
-  Fts5PoslistReader *aIter = aStatic;
-  int i;
-  int rc = SQLITE_OK;
-  int bFirst = pPhrase->aTerm[0].bFirst;
-  
-  fts5BufferZero(&pPhrase->poslist);
-
-  /* If the aStatic[] array is not large enough, allocate a large array
-  ** using tdsqlite3_malloc(). This approach could be improved upon. */
-  if( pPhrase->nTerm>ArraySize(aStatic) ){
-    tdsqlite3_int64 nByte = sizeof(Fts5PoslistReader) * pPhrase->nTerm;
-    aIter = (Fts5PoslistReader*)tdsqlite3_malloc64(nByte);
-    if( !aIter ) return SQLITE_NOMEM;
-  }
-  memset(aIter, 0, sizeof(Fts5PoslistReader) * pPhrase->nTerm);
-
-  /* Initialize a term iterator for each term in the phrase */
-  for(i=0; i<pPhrase->nTerm; i++){
-    Fts5ExprTerm *pTerm = &pPhrase->aTerm[i];
-    int n = 0;
-    int bFlag = 0;
-    u8 *a = 0;
-    if( pTerm->pSynonym ){
-      Fts5Buffer buf = {0, 0, 0};
-      rc = fts5ExprSynonymList(pTerm, pNode->iRowid, &buf, &a, &n);
-      if( rc ){
-        tdsqlite3_free(a);
-        goto ismatch_out;
-      }
-      if( a==buf.p ) bFlag = 1;
-    }else{
-      a = (u8*)pTerm->pIter->pData;
-      n = pTerm->pIter->nData;
-    }
-    tdsqlite3Fts5PoslistReaderInit(a, n, &aIter[i]);
-    aIter[i].bFlag = (u8)bFlag;
-    if( aIter[i].bEof ) goto ismatch_out;
-  }
-
-  while( 1 ){
-    int bMatch;
-    i64 iPos = aIter[0].iPos;
-    do {
-      bMatch = 1;
-      for(i=0; i<pPhrase->nTerm; i++){
-        Fts5PoslistReader *pPos = &aIter[i];
-        i64 iAdj = iPos + i;
-        if( pPos->iPos!=iAdj ){
-          bMatch = 0;
-          while( pPos->iPos<iAdj ){
-            if( tdsqlite3Fts5PoslistReaderNext(pPos) ) goto ismatch_out;
-          }
-          if( pPos->iPos>iAdj ) iPos = pPos->iPos-i;
-        }
-      }
-    }while( bMatch==0 );
-
-    /* Append position iPos to the output */
-    if( bFirst==0 || FTS5_POS2OFFSET(iPos)==0 ){
-      rc = tdsqlite3Fts5PoslistWriterAppend(&pPhrase->poslist, &writer, iPos);
-      if( rc!=SQLITE_OK ) goto ismatch_out;
-    }
-
-    for(i=0; i<pPhrase->nTerm; i++){
-      if( tdsqlite3Fts5PoslistReaderNext(&aIter[i]) ) goto ismatch_out;
-    }
-  }
-
- ismatch_out:
-  *pbMatch = (pPhrase->poslist.n>0);
-  for(i=0; i<pPhrase->nTerm; i++){
-    if( aIter[i].bFlag ) tdsqlite3_free((u8*)aIter[i].a);
-  }
-  if( aIter!=aStatic ) tdsqlite3_free(aIter);
-  return rc;
-}
-
-typedef struct Fts5LookaheadReader Fts5LookaheadReader;
-struct Fts5LookaheadReader {
-  const u8 *a;                    /* Buffer containing position list */
-  int n;                          /* Size of buffer a[] in bytes */
-  int i;                          /* Current offset in position list */
-  i64 iPos;                       /* Current position */
-  i64 iLookahead;                 /* Next position */
-};
-
-#define FTS5_LOOKAHEAD_EOF (((i64)1) << 62)
-
-static int fts5LookaheadReaderNext(Fts5LookaheadReader *p){
-  p->iPos = p->iLookahead;
-  if( tdsqlite3Fts5PoslistNext64(p->a, p->n, &p->i, &p->iLookahead) ){
-    p->iLookahead = FTS5_LOOKAHEAD_EOF;
-  }
-  return (p->iPos==FTS5_LOOKAHEAD_EOF);
-}
-
-static int fts5LookaheadReaderInit(
-  const u8 *a, int n,             /* Buffer to read position list from */
-  Fts5LookaheadReader *p          /* Iterator object to initialize */
-){
-  memset(p, 0, sizeof(Fts5LookaheadReader));
-  p->a = a;
-  p->n = n;
-  fts5LookaheadReaderNext(p);
-  return fts5LookaheadReaderNext(p);
-}
-
-typedef struct Fts5NearTrimmer Fts5NearTrimmer;
-struct Fts5NearTrimmer {
-  Fts5LookaheadReader reader;     /* Input iterator */
-  Fts5PoslistWriter writer;       /* Writer context */
-  Fts5Buffer *pOut;               /* Output poslist */
-};
-
-/*
-** The near-set object passed as the first argument contains more than
-** one phrase. All phrases currently point to the same row. The
-** Fts5ExprPhrase.poslist buffers are populated accordingly. This function
-** tests if the current row contains instances of each phrase sufficiently
-** close together to meet the NEAR constraint. Non-zero is returned if it
-** does, or zero otherwise.
-**
-** If in/out parameter (*pRc) is set to other than SQLITE_OK when this
-** function is called, it is a no-op. Or, if an error (e.g. SQLITE_NOMEM)
-** occurs within this function (*pRc) is set accordingly before returning.
-** The return value is undefined in both these cases.
-** 
-** If no error occurs and non-zero (a match) is returned, the position-list
-** of each phrase object is edited to contain only those entries that
-** meet the constraint before returning.
-*/
-static int fts5ExprNearIsMatch(int *pRc, Fts5ExprNearset *pNear){
-  Fts5NearTrimmer aStatic[4];
-  Fts5NearTrimmer *a = aStatic;
-  Fts5ExprPhrase **apPhrase = pNear->apPhrase;
-
-  int i;
-  int rc = *pRc;
-  int bMatch;
-
-  assert( pNear->nPhrase>1 );
-
-  /* If the aStatic[] array is not large enough, allocate a large array
-  ** using tdsqlite3_malloc(). This approach could be improved upon. */
-  if( pNear->nPhrase>ArraySize(aStatic) ){
-    tdsqlite3_int64 nByte = sizeof(Fts5NearTrimmer) * pNear->nPhrase;
-    a = (Fts5NearTrimmer*)tdsqlite3Fts5MallocZero(&rc, nByte);
-  }else{
-    memset(aStatic, 0, sizeof(aStatic));
-  }
-  if( rc!=SQLITE_OK ){
-    *pRc = rc;
-    return 0;
-  }
-
-  /* Initialize a lookahead iterator for each phrase. After passing the
-  ** buffer and buffer size to the lookaside-reader init function, zero
-  ** the phrase poslist buffer. The new poslist for the phrase (containing
-  ** the same entries as the original with some entries removed on account 
-  ** of the NEAR constraint) is written over the original even as it is
-  ** being read. This is safe as the entries for the new poslist are a
-  ** subset of the old, so it is not possible for data yet to be read to
-  ** be overwritten.  */
-  for(i=0; i<pNear->nPhrase; i++){
-    Fts5Buffer *pPoslist = &apPhrase[i]->poslist;
-    fts5LookaheadReaderInit(pPoslist->p, pPoslist->n, &a[i].reader);
-    pPoslist->n = 0;
-    a[i].pOut = pPoslist;
-  }
-
-  while( 1 ){
-    int iAdv;
-    i64 iMin;
-    i64 iMax;
-
-    /* This block advances the phrase iterators until they point to a set of
-    ** entries that together comprise a match.  */
-    iMax = a[0].reader.iPos;
-    do {
-      bMatch = 1;
-      for(i=0; i<pNear->nPhrase; i++){
-        Fts5LookaheadReader *pPos = &a[i].reader;
-        iMin = iMax - pNear->apPhrase[i]->nTerm - pNear->nNear;
-        if( pPos->iPos<iMin || pPos->iPos>iMax ){
-          bMatch = 0;
-          while( pPos->iPos<iMin ){
-            if( fts5LookaheadReaderNext(pPos) ) goto ismatch_out;
-          }
-          if( pPos->iPos>iMax ) iMax = pPos->iPos;
-        }
-      }
-    }while( bMatch==0 );
-
-    /* Add an entry to each output position list */
-    for(i=0; i<pNear->nPhrase; i++){
-      i64 iPos = a[i].reader.iPos;
-      Fts5PoslistWriter *pWriter = &a[i].writer;
-      if( a[i].pOut->n==0 || iPos!=pWriter->iPrev ){
-        tdsqlite3Fts5PoslistWriterAppend(a[i].pOut, pWriter, iPos);
-      }
-    }
-
-    iAdv = 0;
-    iMin = a[0].reader.iLookahead;
-    for(i=0; i<pNear->nPhrase; i++){
-      if( a[i].reader.iLookahead < iMin ){
-        iMin = a[i].reader.iLookahead;
-        iAdv = i;
-      }
-    }
-    if( fts5LookaheadReaderNext(&a[iAdv].reader) ) goto ismatch_out;
-  }
-
-  ismatch_out: {
-    int bRet = a[0].pOut->n>0;
-    *pRc = rc;
-    if( a!=aStatic ) tdsqlite3_free(a);
-    return bRet;
-  }
-}
-
-/*
-** Advance iterator pIter until it points to a value equal to or laster
-** than the initial value of *piLast. If this means the iterator points
-** to a value laster than *piLast, update *piLast to the new lastest value.
-**
-** If the iterator reaches EOF, set *pbEof to true before returning. If
-** an error occurs, set *pRc to an error code. If either *pbEof or *pRc
-** are set, return a non-zero value. Otherwise, return zero.
-*/
-static int fts5ExprAdvanceto(
-  Fts5IndexIter *pIter,           /* Iterator to advance */
-  int bDesc,                      /* True if iterator is "rowid DESC" */
-  i64 *piLast,                    /* IN/OUT: Lastest rowid seen so far */
-  int *pRc,                       /* OUT: Error code */
-  int *pbEof                      /* OUT: Set to true if EOF */
-){
-  i64 iLast = *piLast;
-  i64 iRowid;
-
-  iRowid = pIter->iRowid;
-  if( (bDesc==0 && iLast>iRowid) || (bDesc && iLast<iRowid) ){
-    int rc = tdsqlite3Fts5IterNextFrom(pIter, iLast);
-    if( rc || tdsqlite3Fts5IterEof(pIter) ){
-      *pRc = rc;
-      *pbEof = 1;
-      return 1;
-    }
-    iRowid = pIter->iRowid;
-    assert( (bDesc==0 && iRowid>=iLast) || (bDesc==1 && iRowid<=iLast) );
-  }
-  *piLast = iRowid;
-
-  return 0;
-}
-
-static int fts5ExprSynonymAdvanceto(
-  Fts5ExprTerm *pTerm,            /* Term iterator to advance */
-  int bDesc,                      /* True if iterator is "rowid DESC" */
-  i64 *piLast,                    /* IN/OUT: Lastest rowid seen so far */
-  int *pRc                        /* OUT: Error code */
-){
-  int rc = SQLITE_OK;
-  i64 iLast = *piLast;
-  Fts5ExprTerm *p;
-  int bEof = 0;
-
-  for(p=pTerm; rc==SQLITE_OK && p; p=p->pSynonym){
-    if( tdsqlite3Fts5IterEof(p->pIter)==0 ){
-      i64 iRowid = p->pIter->iRowid;
-      if( (bDesc==0 && iLast>iRowid) || (bDesc && iLast<iRowid) ){
-        rc = tdsqlite3Fts5IterNextFrom(p->pIter, iLast);
-      }
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    *pRc = rc;
-    bEof = 1;
-  }else{
-    *piLast = fts5ExprSynonymRowid(pTerm, bDesc, &bEof);
-  }
-  return bEof;
-}
-
-
-static int fts5ExprNearTest(
-  int *pRc,
-  Fts5Expr *pExpr,                /* Expression that pNear is a part of */
-  Fts5ExprNode *pNode             /* The "NEAR" node (FTS5_STRING) */
-){
-  Fts5ExprNearset *pNear = pNode->pNear;
-  int rc = *pRc;
-
-  if( pExpr->pConfig->eDetail!=FTS5_DETAIL_FULL ){
-    Fts5ExprTerm *pTerm;
-    Fts5ExprPhrase *pPhrase = pNear->apPhrase[0];
-    pPhrase->poslist.n = 0;
-    for(pTerm=&pPhrase->aTerm[0]; pTerm; pTerm=pTerm->pSynonym){
-      Fts5IndexIter *pIter = pTerm->pIter;
-      if( tdsqlite3Fts5IterEof(pIter)==0 ){
-        if( pIter->iRowid==pNode->iRowid && pIter->nData>0 ){
-          pPhrase->poslist.n = 1;
-        }
-      }
-    }
-    return pPhrase->poslist.n;
-  }else{
-    int i;
-
-    /* Check that each phrase in the nearset matches the current row.
-    ** Populate the pPhrase->poslist buffers at the same time. If any
-    ** phrase is not a match, break out of the loop early.  */
-    for(i=0; rc==SQLITE_OK && i<pNear->nPhrase; i++){
-      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
-      if( pPhrase->nTerm>1 || pPhrase->aTerm[0].pSynonym 
-       || pNear->pColset || pPhrase->aTerm[0].bFirst
-      ){
-        int bMatch = 0;
-        rc = fts5ExprPhraseIsMatch(pNode, pPhrase, &bMatch);
-        if( bMatch==0 ) break;
-      }else{
-        Fts5IndexIter *pIter = pPhrase->aTerm[0].pIter;
-        fts5BufferSet(&rc, &pPhrase->poslist, pIter->nData, pIter->pData);
-      }
-    }
-
-    *pRc = rc;
-    if( i==pNear->nPhrase && (i==1 || fts5ExprNearIsMatch(pRc, pNear)) ){
-      return 1;
-    }
-    return 0;
-  }
-}
-
-
-/*
-** Initialize all term iterators in the pNear object. If any term is found
-** to match no documents at all, return immediately without initializing any
-** further iterators.
-**
-** If an error occurs, return an SQLite error code. Otherwise, return
-** SQLITE_OK. It is not considered an error if some term matches zero
-** documents.
-*/
-static int fts5ExprNearInitAll(
-  Fts5Expr *pExpr,
-  Fts5ExprNode *pNode
-){
-  Fts5ExprNearset *pNear = pNode->pNear;
-  int i;
-
-  assert( pNode->bNomatch==0 );
-  for(i=0; i<pNear->nPhrase; i++){
-    Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
-    if( pPhrase->nTerm==0 ){
-      pNode->bEof = 1;
-      return SQLITE_OK;
-    }else{
-      int j;
-      for(j=0; j<pPhrase->nTerm; j++){
-        Fts5ExprTerm *pTerm = &pPhrase->aTerm[j];
-        Fts5ExprTerm *p;
-        int bHit = 0;
-
-        for(p=pTerm; p; p=p->pSynonym){
-          int rc;
-          if( p->pIter ){
-            tdsqlite3Fts5IterClose(p->pIter);
-            p->pIter = 0;
-          }
-          rc = tdsqlite3Fts5IndexQuery(
-              pExpr->pIndex, p->zTerm, (int)strlen(p->zTerm),
-              (pTerm->bPrefix ? FTS5INDEX_QUERY_PREFIX : 0) |
-              (pExpr->bDesc ? FTS5INDEX_QUERY_DESC : 0),
-              pNear->pColset,
-              &p->pIter
-          );
-          assert( (rc==SQLITE_OK)==(p->pIter!=0) );
-          if( rc!=SQLITE_OK ) return rc;
-          if( 0==tdsqlite3Fts5IterEof(p->pIter) ){
-            bHit = 1;
-          }
-        }
-
-        if( bHit==0 ){
-          pNode->bEof = 1;
-          return SQLITE_OK;
-        }
-      }
-    }
-  }
-
-  pNode->bEof = 0;
-  return SQLITE_OK;
-}
-
-/*
-** If pExpr is an ASC iterator, this function returns a value with the
-** same sign as:
-**
-**   (iLhs - iRhs)
-**
-** Otherwise, if this is a DESC iterator, the opposite is returned:
-**
-**   (iRhs - iLhs)
-*/
-static int fts5RowidCmp(
-  Fts5Expr *pExpr,
-  i64 iLhs,
-  i64 iRhs
-){
-  assert( pExpr->bDesc==0 || pExpr->bDesc==1 );
-  if( pExpr->bDesc==0 ){
-    if( iLhs<iRhs ) return -1;
-    return (iLhs > iRhs);
-  }else{
-    if( iLhs>iRhs ) return -1;
-    return (iLhs < iRhs);
-  }
-}
-
-static void fts5ExprSetEof(Fts5ExprNode *pNode){
-  int i;
-  pNode->bEof = 1;
-  pNode->bNomatch = 0;
-  for(i=0; i<pNode->nChild; i++){
-    fts5ExprSetEof(pNode->apChild[i]);
-  }
-}
-
-static void fts5ExprNodeZeroPoslist(Fts5ExprNode *pNode){
-  if( pNode->eType==FTS5_STRING || pNode->eType==FTS5_TERM ){
-    Fts5ExprNearset *pNear = pNode->pNear;
-    int i;
-    for(i=0; i<pNear->nPhrase; i++){
-      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
-      pPhrase->poslist.n = 0;
-    }
-  }else{
-    int i;
-    for(i=0; i<pNode->nChild; i++){
-      fts5ExprNodeZeroPoslist(pNode->apChild[i]);
-    }
-  }
-}
-
-
-
-/*
-** Compare the values currently indicated by the two nodes as follows:
-**
-**    res = (*p1) - (*p2)
-**
-** Nodes that point to values that come later in the iteration order are
-** considered to be larger. Nodes at EOF are the largest of all.
-**
-** This means that if the iteration order is ASC, then numerically larger
-** rowids are considered larger. Or if it is the default DESC, numerically
-** smaller rowids are larger.
-*/
-static int fts5NodeCompare(
-  Fts5Expr *pExpr,
-  Fts5ExprNode *p1, 
-  Fts5ExprNode *p2
-){
-  if( p2->bEof ) return -1;
-  if( p1->bEof ) return +1;
-  return fts5RowidCmp(pExpr, p1->iRowid, p2->iRowid);
-}
-
-/*
-** All individual term iterators in pNear are guaranteed to be valid when
-** this function is called. This function checks if all term iterators
-** point to the same rowid, and if not, advances them until they do.
-** If an EOF is reached before this happens, *pbEof is set to true before
-** returning.
-**
-** SQLITE_OK is returned if an error occurs, or an SQLite error code 
-** otherwise. It is not considered an error code if an iterator reaches
-** EOF.
-*/
-static int fts5ExprNodeTest_STRING(
-  Fts5Expr *pExpr,                /* Expression pPhrase belongs to */
-  Fts5ExprNode *pNode
-){
-  Fts5ExprNearset *pNear = pNode->pNear;
-  Fts5ExprPhrase *pLeft = pNear->apPhrase[0];
-  int rc = SQLITE_OK;
-  i64 iLast;                      /* Lastest rowid any iterator points to */
-  int i, j;                       /* Phrase and token index, respectively */
-  int bMatch;                     /* True if all terms are at the same rowid */
-  const int bDesc = pExpr->bDesc;
-
-  /* Check that this node should not be FTS5_TERM */
-  assert( pNear->nPhrase>1 
-       || pNear->apPhrase[0]->nTerm>1 
-       || pNear->apPhrase[0]->aTerm[0].pSynonym
-       || pNear->apPhrase[0]->aTerm[0].bFirst
-  );
-
-  /* Initialize iLast, the "lastest" rowid any iterator points to. If the
-  ** iterator skips through rowids in the default ascending order, this means
-  ** the maximum rowid. Or, if the iterator is "ORDER BY rowid DESC", then it
-  ** means the minimum rowid.  */
-  if( pLeft->aTerm[0].pSynonym ){
-    iLast = fts5ExprSynonymRowid(&pLeft->aTerm[0], bDesc, 0);
-  }else{
-    iLast = pLeft->aTerm[0].pIter->iRowid;
-  }
-
-  do {
-    bMatch = 1;
-    for(i=0; i<pNear->nPhrase; i++){
-      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
-      for(j=0; j<pPhrase->nTerm; j++){
-        Fts5ExprTerm *pTerm = &pPhrase->aTerm[j];
-        if( pTerm->pSynonym ){
-          i64 iRowid = fts5ExprSynonymRowid(pTerm, bDesc, 0);
-          if( iRowid==iLast ) continue;
-          bMatch = 0;
-          if( fts5ExprSynonymAdvanceto(pTerm, bDesc, &iLast, &rc) ){
-            pNode->bNomatch = 0;
-            pNode->bEof = 1;
-            return rc;
-          }
-        }else{
-          Fts5IndexIter *pIter = pPhrase->aTerm[j].pIter;
-          if( pIter->iRowid==iLast || pIter->bEof ) continue;
-          bMatch = 0;
-          if( fts5ExprAdvanceto(pIter, bDesc, &iLast, &rc, &pNode->bEof) ){
-            return rc;
-          }
-        }
-      }
-    }
-  }while( bMatch==0 );
-
-  pNode->iRowid = iLast;
-  pNode->bNomatch = ((0==fts5ExprNearTest(&rc, pExpr, pNode)) && rc==SQLITE_OK);
-  assert( pNode->bEof==0 || pNode->bNomatch==0 );
-
-  return rc;
-}
-
-/*
-** Advance the first term iterator in the first phrase of pNear. Set output
-** variable *pbEof to true if it reaches EOF or if an error occurs.
-**
-** Return SQLITE_OK if successful, or an SQLite error code if an error
-** occurs.
-*/
-static int fts5ExprNodeNext_STRING(
-  Fts5Expr *pExpr,                /* Expression pPhrase belongs to */
-  Fts5ExprNode *pNode,            /* FTS5_STRING or FTS5_TERM node */
-  int bFromValid,
-  i64 iFrom 
-){
-  Fts5ExprTerm *pTerm = &pNode->pNear->apPhrase[0]->aTerm[0];
-  int rc = SQLITE_OK;
-
-  pNode->bNomatch = 0;
-  if( pTerm->pSynonym ){
-    int bEof = 1;
-    Fts5ExprTerm *p;
-
-    /* Find the firstest rowid any synonym points to. */
-    i64 iRowid = fts5ExprSynonymRowid(pTerm, pExpr->bDesc, 0);
-
-    /* Advance each iterator that currently points to iRowid. Or, if iFrom
-    ** is valid - each iterator that points to a rowid before iFrom.  */
-    for(p=pTerm; p; p=p->pSynonym){
-      if( tdsqlite3Fts5IterEof(p->pIter)==0 ){
-        i64 ii = p->pIter->iRowid;
-        if( ii==iRowid 
-         || (bFromValid && ii!=iFrom && (ii>iFrom)==pExpr->bDesc) 
-        ){
-          if( bFromValid ){
-            rc = tdsqlite3Fts5IterNextFrom(p->pIter, iFrom);
-          }else{
-            rc = tdsqlite3Fts5IterNext(p->pIter);
-          }
-          if( rc!=SQLITE_OK ) break;
-          if( tdsqlite3Fts5IterEof(p->pIter)==0 ){
-            bEof = 0;
-          }
-        }else{
-          bEof = 0;
-        }
-      }
-    }
-
-    /* Set the EOF flag if either all synonym iterators are at EOF or an
-    ** error has occurred.  */
-    pNode->bEof = (rc || bEof);
-  }else{
-    Fts5IndexIter *pIter = pTerm->pIter;
-
-    assert( Fts5NodeIsString(pNode) );
-    if( bFromValid ){
-      rc = tdsqlite3Fts5IterNextFrom(pIter, iFrom);
-    }else{
-      rc = tdsqlite3Fts5IterNext(pIter);
-    }
-
-    pNode->bEof = (rc || tdsqlite3Fts5IterEof(pIter));
-  }
-
-  if( pNode->bEof==0 ){
-    assert( rc==SQLITE_OK );
-    rc = fts5ExprNodeTest_STRING(pExpr, pNode);
-  }
-
-  return rc;
-}
-
-
-static int fts5ExprNodeTest_TERM(
-  Fts5Expr *pExpr,                /* Expression that pNear is a part of */
-  Fts5ExprNode *pNode             /* The "NEAR" node (FTS5_TERM) */
-){
-  /* As this "NEAR" object is actually a single phrase that consists 
-  ** of a single term only, grab pointers into the poslist managed by the
-  ** fts5_index.c iterator object. This is much faster than synthesizing 
-  ** a new poslist the way we have to for more complicated phrase or NEAR
-  ** expressions.  */
-  Fts5ExprPhrase *pPhrase = pNode->pNear->apPhrase[0];
-  Fts5IndexIter *pIter = pPhrase->aTerm[0].pIter;
-
-  assert( pNode->eType==FTS5_TERM );
-  assert( pNode->pNear->nPhrase==1 && pPhrase->nTerm==1 );
-  assert( pPhrase->aTerm[0].pSynonym==0 );
-
-  pPhrase->poslist.n = pIter->nData;
-  if( pExpr->pConfig->eDetail==FTS5_DETAIL_FULL ){
-    pPhrase->poslist.p = (u8*)pIter->pData;
-  }
-  pNode->iRowid = pIter->iRowid;
-  pNode->bNomatch = (pPhrase->poslist.n==0);
-  return SQLITE_OK;
-}
-
-/*
-** xNext() method for a node of type FTS5_TERM.
-*/
-static int fts5ExprNodeNext_TERM(
-  Fts5Expr *pExpr, 
-  Fts5ExprNode *pNode,
-  int bFromValid,
-  i64 iFrom
-){
-  int rc;
-  Fts5IndexIter *pIter = pNode->pNear->apPhrase[0]->aTerm[0].pIter;
-
-  assert( pNode->bEof==0 );
-  if( bFromValid ){
-    rc = tdsqlite3Fts5IterNextFrom(pIter, iFrom);
-  }else{
-    rc = tdsqlite3Fts5IterNext(pIter);
-  }
-  if( rc==SQLITE_OK && tdsqlite3Fts5IterEof(pIter)==0 ){
-    rc = fts5ExprNodeTest_TERM(pExpr, pNode);
-  }else{
-    pNode->bEof = 1;
-    pNode->bNomatch = 0;
-  }
-  return rc;
-}
-
-static void fts5ExprNodeTest_OR(
-  Fts5Expr *pExpr,                /* Expression of which pNode is a part */
-  Fts5ExprNode *pNode             /* Expression node to test */
-){
-  Fts5ExprNode *pNext = pNode->apChild[0];
-  int i;
-
-  for(i=1; i<pNode->nChild; i++){
-    Fts5ExprNode *pChild = pNode->apChild[i];
-    int cmp = fts5NodeCompare(pExpr, pNext, pChild);
-    if( cmp>0 || (cmp==0 && pChild->bNomatch==0) ){
-      pNext = pChild;
-    }
-  }
-  pNode->iRowid = pNext->iRowid;
-  pNode->bEof = pNext->bEof;
-  pNode->bNomatch = pNext->bNomatch;
-}
-
-static int fts5ExprNodeNext_OR(
-  Fts5Expr *pExpr, 
-  Fts5ExprNode *pNode,
-  int bFromValid,
-  i64 iFrom
-){
-  int i;
-  i64 iLast = pNode->iRowid;
-
-  for(i=0; i<pNode->nChild; i++){
-    Fts5ExprNode *p1 = pNode->apChild[i];
-    assert( p1->bEof || fts5RowidCmp(pExpr, p1->iRowid, iLast)>=0 );
-    if( p1->bEof==0 ){
-      if( (p1->iRowid==iLast) 
-       || (bFromValid && fts5RowidCmp(pExpr, p1->iRowid, iFrom)<0)
-      ){
-        int rc = fts5ExprNodeNext(pExpr, p1, bFromValid, iFrom);
-        if( rc!=SQLITE_OK ){
-          pNode->bNomatch = 0;
-          return rc;
-        }
-      }
-    }
-  }
-
-  fts5ExprNodeTest_OR(pExpr, pNode);
-  return SQLITE_OK;
-}
-
-/*
-** Argument pNode is an FTS5_AND node.
-*/
-static int fts5ExprNodeTest_AND(
-  Fts5Expr *pExpr,                /* Expression pPhrase belongs to */
-  Fts5ExprNode *pAnd              /* FTS5_AND node to advance */
-){
-  int iChild;
-  i64 iLast = pAnd->iRowid;
-  int rc = SQLITE_OK;
-  int bMatch;
-
-  assert( pAnd->bEof==0 );
-  do {
-    pAnd->bNomatch = 0;
-    bMatch = 1;
-    for(iChild=0; iChild<pAnd->nChild; iChild++){
-      Fts5ExprNode *pChild = pAnd->apChild[iChild];
-      int cmp = fts5RowidCmp(pExpr, iLast, pChild->iRowid);
-      if( cmp>0 ){
-        /* Advance pChild until it points to iLast or laster */
-        rc = fts5ExprNodeNext(pExpr, pChild, 1, iLast);
-        if( rc!=SQLITE_OK ){
-          pAnd->bNomatch = 0;
-          return rc;
-        }
-      }
-
-      /* If the child node is now at EOF, so is the parent AND node. Otherwise,
-      ** the child node is guaranteed to have advanced at least as far as
-      ** rowid iLast. So if it is not at exactly iLast, pChild->iRowid is the
-      ** new lastest rowid seen so far.  */
-      assert( pChild->bEof || fts5RowidCmp(pExpr, iLast, pChild->iRowid)<=0 );
-      if( pChild->bEof ){
-        fts5ExprSetEof(pAnd);
-        bMatch = 1;
-        break;
-      }else if( iLast!=pChild->iRowid ){
-        bMatch = 0;
-        iLast = pChild->iRowid;
-      }
-
-      if( pChild->bNomatch ){
-        pAnd->bNomatch = 1;
-      }
-    }
-  }while( bMatch==0 );
-
-  if( pAnd->bNomatch && pAnd!=pExpr->pRoot ){
-    fts5ExprNodeZeroPoslist(pAnd);
-  }
-  pAnd->iRowid = iLast;
-  return SQLITE_OK;
-}
-
-static int fts5ExprNodeNext_AND(
-  Fts5Expr *pExpr, 
-  Fts5ExprNode *pNode,
-  int bFromValid,
-  i64 iFrom
-){
-  int rc = fts5ExprNodeNext(pExpr, pNode->apChild[0], bFromValid, iFrom);
-  if( rc==SQLITE_OK ){
-    rc = fts5ExprNodeTest_AND(pExpr, pNode);
-  }else{
-    pNode->bNomatch = 0;
-  }
-  return rc;
-}
-
-static int fts5ExprNodeTest_NOT(
-  Fts5Expr *pExpr,                /* Expression pPhrase belongs to */
-  Fts5ExprNode *pNode             /* FTS5_NOT node to advance */
-){
-  int rc = SQLITE_OK;
-  Fts5ExprNode *p1 = pNode->apChild[0];
-  Fts5ExprNode *p2 = pNode->apChild[1];
-  assert( pNode->nChild==2 );
-
-  while( rc==SQLITE_OK && p1->bEof==0 ){
-    int cmp = fts5NodeCompare(pExpr, p1, p2);
-    if( cmp>0 ){
-      rc = fts5ExprNodeNext(pExpr, p2, 1, p1->iRowid);
-      cmp = fts5NodeCompare(pExpr, p1, p2);
-    }
-    assert( rc!=SQLITE_OK || cmp<=0 );
-    if( cmp || p2->bNomatch ) break;
-    rc = fts5ExprNodeNext(pExpr, p1, 0, 0);
-  }
-  pNode->bEof = p1->bEof;
-  pNode->bNomatch = p1->bNomatch;
-  pNode->iRowid = p1->iRowid;
-  if( p1->bEof ){
-    fts5ExprNodeZeroPoslist(p2);
-  }
-  return rc;
-}
-
-static int fts5ExprNodeNext_NOT(
-  Fts5Expr *pExpr, 
-  Fts5ExprNode *pNode,
-  int bFromValid,
-  i64 iFrom
-){
-  int rc = fts5ExprNodeNext(pExpr, pNode->apChild[0], bFromValid, iFrom);
-  if( rc==SQLITE_OK ){
-    rc = fts5ExprNodeTest_NOT(pExpr, pNode);
-  }
-  if( rc!=SQLITE_OK ){
-    pNode->bNomatch = 0;
-  }
-  return rc;
-}
-
-/*
-** If pNode currently points to a match, this function returns SQLITE_OK
-** without modifying it. Otherwise, pNode is advanced until it does point
-** to a match or EOF is reached.
-*/
-static int fts5ExprNodeTest(
-  Fts5Expr *pExpr,                /* Expression of which pNode is a part */
-  Fts5ExprNode *pNode             /* Expression node to test */
-){
-  int rc = SQLITE_OK;
-  if( pNode->bEof==0 ){
-    switch( pNode->eType ){
-
-      case FTS5_STRING: {
-        rc = fts5ExprNodeTest_STRING(pExpr, pNode);
-        break;
-      }
-
-      case FTS5_TERM: {
-        rc = fts5ExprNodeTest_TERM(pExpr, pNode);
-        break;
-      }
-
-      case FTS5_AND: {
-        rc = fts5ExprNodeTest_AND(pExpr, pNode);
-        break;
-      }
-
-      case FTS5_OR: {
-        fts5ExprNodeTest_OR(pExpr, pNode);
-        break;
-      }
-
-      default: assert( pNode->eType==FTS5_NOT ); {
-        rc = fts5ExprNodeTest_NOT(pExpr, pNode);
-        break;
-      }
-    }
-  }
-  return rc;
-}
-
- 
-/*
-** Set node pNode, which is part of expression pExpr, to point to the first
-** match. If there are no matches, set the Node.bEof flag to indicate EOF.
-**
-** Return an SQLite error code if an error occurs, or SQLITE_OK otherwise.
-** It is not an error if there are no matches.
-*/
-static int fts5ExprNodeFirst(Fts5Expr *pExpr, Fts5ExprNode *pNode){
-  int rc = SQLITE_OK;
-  pNode->bEof = 0;
-  pNode->bNomatch = 0;
-
-  if( Fts5NodeIsString(pNode) ){
-    /* Initialize all term iterators in the NEAR object. */
-    rc = fts5ExprNearInitAll(pExpr, pNode);
-  }else if( pNode->xNext==0 ){
-    pNode->bEof = 1;
-  }else{
-    int i;
-    int nEof = 0;
-    for(i=0; i<pNode->nChild && rc==SQLITE_OK; i++){
-      Fts5ExprNode *pChild = pNode->apChild[i];
-      rc = fts5ExprNodeFirst(pExpr, pNode->apChild[i]);
-      assert( pChild->bEof==0 || pChild->bEof==1 );
-      nEof += pChild->bEof;
-    }
-    pNode->iRowid = pNode->apChild[0]->iRowid;
-
-    switch( pNode->eType ){
-      case FTS5_AND:
-        if( nEof>0 ) fts5ExprSetEof(pNode);
-        break;
-
-      case FTS5_OR:
-        if( pNode->nChild==nEof ) fts5ExprSetEof(pNode);
-        break;
-
-      default:
-        assert( pNode->eType==FTS5_NOT );
-        pNode->bEof = pNode->apChild[0]->bEof;
-        break;
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = fts5ExprNodeTest(pExpr, pNode);
-  }
-  return rc;
-}
-
-
-/*
-** Begin iterating through the set of documents in index pIdx matched by
-** the MATCH expression passed as the first argument. If the "bDesc" 
-** parameter is passed a non-zero value, iteration is in descending rowid 
-** order. Or, if it is zero, in ascending order.
-**
-** If iterating in ascending rowid order (bDesc==0), the first document
-** visited is that with the smallest rowid that is larger than or equal
-** to parameter iFirst. Or, if iterating in ascending order (bDesc==1),
-** then the first document visited must have a rowid smaller than or
-** equal to iFirst.
-**
-** Return SQLITE_OK if successful, or an SQLite error code otherwise. It
-** is not considered an error if the query does not match any documents.
-*/
-static int tdsqlite3Fts5ExprFirst(Fts5Expr *p, Fts5Index *pIdx, i64 iFirst, int bDesc){
-  Fts5ExprNode *pRoot = p->pRoot;
-  int rc;                         /* Return code */
-
-  p->pIndex = pIdx;
-  p->bDesc = bDesc;
-  rc = fts5ExprNodeFirst(p, pRoot);
-
-  /* If not at EOF but the current rowid occurs earlier than iFirst in
-  ** the iteration order, move to document iFirst or later. */
-  if( rc==SQLITE_OK 
-   && 0==pRoot->bEof 
-   && fts5RowidCmp(p, pRoot->iRowid, iFirst)<0 
-  ){
-    rc = fts5ExprNodeNext(p, pRoot, 1, iFirst);
-  }
-
-  /* If the iterator is not at a real match, skip forward until it is. */
-  while( pRoot->bNomatch ){
-    assert( pRoot->bEof==0 && rc==SQLITE_OK );
-    rc = fts5ExprNodeNext(p, pRoot, 0, 0);
-  }
-  return rc;
-}
-
-/*
-** Move to the next document 
-**
-** Return SQLITE_OK if successful, or an SQLite error code otherwise. It
-** is not considered an error if the query does not match any documents.
-*/
-static int tdsqlite3Fts5ExprNext(Fts5Expr *p, i64 iLast){
-  int rc;
-  Fts5ExprNode *pRoot = p->pRoot;
-  assert( pRoot->bEof==0 && pRoot->bNomatch==0 );
-  do {
-    rc = fts5ExprNodeNext(p, pRoot, 0, 0);
-    assert( pRoot->bNomatch==0 || (rc==SQLITE_OK && pRoot->bEof==0) );
-  }while( pRoot->bNomatch );
-  if( fts5RowidCmp(p, pRoot->iRowid, iLast)>0 ){
-    pRoot->bEof = 1;
-  }
-  return rc;
-}
-
-static int tdsqlite3Fts5ExprEof(Fts5Expr *p){
-  return p->pRoot->bEof;
-}
-
-static i64 tdsqlite3Fts5ExprRowid(Fts5Expr *p){
-  return p->pRoot->iRowid;
-}
-
-static int fts5ParseStringFromToken(Fts5Token *pToken, char **pz){
-  int rc = SQLITE_OK;
-  *pz = tdsqlite3Fts5Strndup(&rc, pToken->p, pToken->n);
-  return rc;
-}
-
-/*
-** Free the phrase object passed as the only argument.
-*/
-static void fts5ExprPhraseFree(Fts5ExprPhrase *pPhrase){
-  if( pPhrase ){
-    int i;
-    for(i=0; i<pPhrase->nTerm; i++){
-      Fts5ExprTerm *pSyn;
-      Fts5ExprTerm *pNext;
-      Fts5ExprTerm *pTerm = &pPhrase->aTerm[i];
-      tdsqlite3_free(pTerm->zTerm);
-      tdsqlite3Fts5IterClose(pTerm->pIter);
-      for(pSyn=pTerm->pSynonym; pSyn; pSyn=pNext){
-        pNext = pSyn->pSynonym;
-        tdsqlite3Fts5IterClose(pSyn->pIter);
-        fts5BufferFree((Fts5Buffer*)&pSyn[1]);
-        tdsqlite3_free(pSyn);
-      }
-    }
-    if( pPhrase->poslist.nSpace>0 ) fts5BufferFree(&pPhrase->poslist);
-    tdsqlite3_free(pPhrase);
-  }
-}
-
-/*
-** Set the "bFirst" flag on the first token of the phrase passed as the
-** only argument.
-*/
-static void tdsqlite3Fts5ParseSetCaret(Fts5ExprPhrase *pPhrase){
-  if( pPhrase && pPhrase->nTerm ){
-    pPhrase->aTerm[0].bFirst = 1;
-  }
-}
-
-/*
-** If argument pNear is NULL, then a new Fts5ExprNearset object is allocated
-** and populated with pPhrase. Or, if pNear is not NULL, phrase pPhrase is
-** appended to it and the results returned.
-**
-** If an OOM error occurs, both the pNear and pPhrase objects are freed and
-** NULL returned.
-*/
-static Fts5ExprNearset *tdsqlite3Fts5ParseNearset(
-  Fts5Parse *pParse,              /* Parse context */
-  Fts5ExprNearset *pNear,         /* Existing nearset, or NULL */
-  Fts5ExprPhrase *pPhrase         /* Recently parsed phrase */
-){
-  const int SZALLOC = 8;
-  Fts5ExprNearset *pRet = 0;
-
-  if( pParse->rc==SQLITE_OK ){
-    if( pPhrase==0 ){
-      return pNear;
-    }
-    if( pNear==0 ){
-      tdsqlite3_int64 nByte;
-      nByte = sizeof(Fts5ExprNearset) + SZALLOC * sizeof(Fts5ExprPhrase*);
-      pRet = tdsqlite3_malloc64(nByte);
-      if( pRet==0 ){
-        pParse->rc = SQLITE_NOMEM;
-      }else{
-        memset(pRet, 0, (size_t)nByte);
-      }
-    }else if( (pNear->nPhrase % SZALLOC)==0 ){
-      int nNew = pNear->nPhrase + SZALLOC;
-      tdsqlite3_int64 nByte;
-
-      nByte = sizeof(Fts5ExprNearset) + nNew * sizeof(Fts5ExprPhrase*);
-      pRet = (Fts5ExprNearset*)tdsqlite3_realloc64(pNear, nByte);
-      if( pRet==0 ){
-        pParse->rc = SQLITE_NOMEM;
-      }
-    }else{
-      pRet = pNear;
-    }
-  }
-
-  if( pRet==0 ){
-    assert( pParse->rc!=SQLITE_OK );
-    tdsqlite3Fts5ParseNearsetFree(pNear);
-    tdsqlite3Fts5ParsePhraseFree(pPhrase);
-  }else{
-    if( pRet->nPhrase>0 ){
-      Fts5ExprPhrase *pLast = pRet->apPhrase[pRet->nPhrase-1];
-      assert( pLast==pParse->apPhrase[pParse->nPhrase-2] );
-      if( pPhrase->nTerm==0 ){
-        fts5ExprPhraseFree(pPhrase);
-        pRet->nPhrase--;
-        pParse->nPhrase--;
-        pPhrase = pLast;
-      }else if( pLast->nTerm==0 ){
-        fts5ExprPhraseFree(pLast);
-        pParse->apPhrase[pParse->nPhrase-2] = pPhrase;
-        pParse->nPhrase--;
-        pRet->nPhrase--;
-      }
-    }
-    pRet->apPhrase[pRet->nPhrase++] = pPhrase;
-  }
-  return pRet;
-}
-
-typedef struct TokenCtx TokenCtx;
-struct TokenCtx {
-  Fts5ExprPhrase *pPhrase;
-  int rc;
-};
-
-/*
-** Callback for tokenizing terms used by ParseTerm().
-*/
-static int fts5ParseTokenize(
-  void *pContext,                 /* Pointer to Fts5InsertCtx object */
-  int tflags,                     /* Mask of FTS5_TOKEN_* flags */
-  const char *pToken,             /* Buffer containing token */
-  int nToken,                     /* Size of token in bytes */
-  int iUnused1,                   /* Start offset of token */
-  int iUnused2                    /* End offset of token */
-){
-  int rc = SQLITE_OK;
-  const int SZALLOC = 8;
-  TokenCtx *pCtx = (TokenCtx*)pContext;
-  Fts5ExprPhrase *pPhrase = pCtx->pPhrase;
-
-  UNUSED_PARAM2(iUnused1, iUnused2);
-
-  /* If an error has already occurred, this is a no-op */
-  if( pCtx->rc!=SQLITE_OK ) return pCtx->rc;
-  if( nToken>FTS5_MAX_TOKEN_SIZE ) nToken = FTS5_MAX_TOKEN_SIZE;
-
-  if( pPhrase && pPhrase->nTerm>0 && (tflags & FTS5_TOKEN_COLOCATED) ){
-    Fts5ExprTerm *pSyn;
-    tdsqlite3_int64 nByte = sizeof(Fts5ExprTerm) + sizeof(Fts5Buffer) + nToken+1;
-    pSyn = (Fts5ExprTerm*)tdsqlite3_malloc64(nByte);
-    if( pSyn==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      memset(pSyn, 0, (size_t)nByte);
-      pSyn->zTerm = ((char*)pSyn) + sizeof(Fts5ExprTerm) + sizeof(Fts5Buffer);
-      memcpy(pSyn->zTerm, pToken, nToken);
-      pSyn->pSynonym = pPhrase->aTerm[pPhrase->nTerm-1].pSynonym;
-      pPhrase->aTerm[pPhrase->nTerm-1].pSynonym = pSyn;
-    }
-  }else{
-    Fts5ExprTerm *pTerm;
-    if( pPhrase==0 || (pPhrase->nTerm % SZALLOC)==0 ){
-      Fts5ExprPhrase *pNew;
-      int nNew = SZALLOC + (pPhrase ? pPhrase->nTerm : 0);
-
-      pNew = (Fts5ExprPhrase*)tdsqlite3_realloc64(pPhrase, 
-          sizeof(Fts5ExprPhrase) + sizeof(Fts5ExprTerm) * nNew
-      );
-      if( pNew==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        if( pPhrase==0 ) memset(pNew, 0, sizeof(Fts5ExprPhrase));
-        pCtx->pPhrase = pPhrase = pNew;
-        pNew->nTerm = nNew - SZALLOC;
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      pTerm = &pPhrase->aTerm[pPhrase->nTerm++];
-      memset(pTerm, 0, sizeof(Fts5ExprTerm));
-      pTerm->zTerm = tdsqlite3Fts5Strndup(&rc, pToken, nToken);
-    }
-  }
-
-  pCtx->rc = rc;
-  return rc;
-}
-
-
-/*
-** Free the phrase object passed as the only argument.
-*/
-static void tdsqlite3Fts5ParsePhraseFree(Fts5ExprPhrase *pPhrase){
-  fts5ExprPhraseFree(pPhrase);
-}
-
-/*
-** Free the phrase object passed as the second argument.
-*/
-static void tdsqlite3Fts5ParseNearsetFree(Fts5ExprNearset *pNear){
-  if( pNear ){
-    int i;
-    for(i=0; i<pNear->nPhrase; i++){
-      fts5ExprPhraseFree(pNear->apPhrase[i]);
-    }
-    tdsqlite3_free(pNear->pColset);
-    tdsqlite3_free(pNear);
-  }
-}
-
-static void tdsqlite3Fts5ParseFinished(Fts5Parse *pParse, Fts5ExprNode *p){
-  assert( pParse->pExpr==0 );
-  pParse->pExpr = p;
-}
-
-/*
-** This function is called by the parser to process a string token. The
-** string may or may not be quoted. In any case it is tokenized and a
-** phrase object consisting of all tokens returned.
-*/
-static Fts5ExprPhrase *tdsqlite3Fts5ParseTerm(
-  Fts5Parse *pParse,              /* Parse context */
-  Fts5ExprPhrase *pAppend,        /* Phrase to append to */
-  Fts5Token *pToken,              /* String to tokenize */
-  int bPrefix                     /* True if there is a trailing "*" */
-){
-  Fts5Config *pConfig = pParse->pConfig;
-  TokenCtx sCtx;                  /* Context object passed to callback */
-  int rc;                         /* Tokenize return code */
-  char *z = 0;
-
-  memset(&sCtx, 0, sizeof(TokenCtx));
-  sCtx.pPhrase = pAppend;
-
-  rc = fts5ParseStringFromToken(pToken, &z);
-  if( rc==SQLITE_OK ){
-    int flags = FTS5_TOKENIZE_QUERY | (bPrefix ? FTS5_TOKENIZE_PREFIX : 0);
-    int n;
-    tdsqlite3Fts5Dequote(z);
-    n = (int)strlen(z);
-    rc = tdsqlite3Fts5Tokenize(pConfig, flags, z, n, &sCtx, fts5ParseTokenize);
-  }
-  tdsqlite3_free(z);
-  if( rc || (rc = sCtx.rc) ){
-    pParse->rc = rc;
-    fts5ExprPhraseFree(sCtx.pPhrase);
-    sCtx.pPhrase = 0;
-  }else{
-
-    if( pAppend==0 ){
-      if( (pParse->nPhrase % 8)==0 ){
-        tdsqlite3_int64 nByte = sizeof(Fts5ExprPhrase*) * (pParse->nPhrase + 8);
-        Fts5ExprPhrase **apNew;
-        apNew = (Fts5ExprPhrase**)tdsqlite3_realloc64(pParse->apPhrase, nByte);
-        if( apNew==0 ){
-          pParse->rc = SQLITE_NOMEM;
-          fts5ExprPhraseFree(sCtx.pPhrase);
-          return 0;
-        }
-        pParse->apPhrase = apNew;
-      }
-      pParse->nPhrase++;
-    }
-
-    if( sCtx.pPhrase==0 ){
-      /* This happens when parsing a token or quoted phrase that contains
-      ** no token characters at all. (e.g ... MATCH '""'). */
-      sCtx.pPhrase = tdsqlite3Fts5MallocZero(&pParse->rc, sizeof(Fts5ExprPhrase));
-    }else if( sCtx.pPhrase->nTerm ){
-      sCtx.pPhrase->aTerm[sCtx.pPhrase->nTerm-1].bPrefix = (u8)bPrefix;
-    }
-    pParse->apPhrase[pParse->nPhrase-1] = sCtx.pPhrase;
-  }
-
-  return sCtx.pPhrase;
-}
-
-/*
-** Create a new FTS5 expression by cloning phrase iPhrase of the
-** expression passed as the second argument.
-*/
-static int tdsqlite3Fts5ExprClonePhrase(
-  Fts5Expr *pExpr, 
-  int iPhrase, 
-  Fts5Expr **ppNew
-){
-  int rc = SQLITE_OK;             /* Return code */
-  Fts5ExprPhrase *pOrig;          /* The phrase extracted from pExpr */
-  Fts5Expr *pNew = 0;             /* Expression to return via *ppNew */
-  TokenCtx sCtx = {0,0};          /* Context object for fts5ParseTokenize */
-
-  pOrig = pExpr->apExprPhrase[iPhrase];
-  pNew = (Fts5Expr*)tdsqlite3Fts5MallocZero(&rc, sizeof(Fts5Expr));
-  if( rc==SQLITE_OK ){
-    pNew->apExprPhrase = (Fts5ExprPhrase**)tdsqlite3Fts5MallocZero(&rc, 
-        sizeof(Fts5ExprPhrase*));
-  }
-  if( rc==SQLITE_OK ){
-    pNew->pRoot = (Fts5ExprNode*)tdsqlite3Fts5MallocZero(&rc, 
-        sizeof(Fts5ExprNode));
-  }
-  if( rc==SQLITE_OK ){
-    pNew->pRoot->pNear = (Fts5ExprNearset*)tdsqlite3Fts5MallocZero(&rc, 
-        sizeof(Fts5ExprNearset) + sizeof(Fts5ExprPhrase*));
-  }
-  if( rc==SQLITE_OK ){
-    Fts5Colset *pColsetOrig = pOrig->pNode->pNear->pColset;
-    if( pColsetOrig ){
-      tdsqlite3_int64 nByte;
-      Fts5Colset *pColset;
-      nByte = sizeof(Fts5Colset) + (pColsetOrig->nCol-1) * sizeof(int);
-      pColset = (Fts5Colset*)tdsqlite3Fts5MallocZero(&rc, nByte);
-      if( pColset ){ 
-        memcpy(pColset, pColsetOrig, (size_t)nByte);
-      }
-      pNew->pRoot->pNear->pColset = pColset;
-    }
-  }
-
-  if( pOrig->nTerm ){
-    int i;                          /* Used to iterate through phrase terms */
-    for(i=0; rc==SQLITE_OK && i<pOrig->nTerm; i++){
-      int tflags = 0;
-      Fts5ExprTerm *p;
-      for(p=&pOrig->aTerm[i]; p && rc==SQLITE_OK; p=p->pSynonym){
-        const char *zTerm = p->zTerm;
-        rc = fts5ParseTokenize((void*)&sCtx, tflags, zTerm, (int)strlen(zTerm),
-            0, 0);
-        tflags = FTS5_TOKEN_COLOCATED;
-      }
-      if( rc==SQLITE_OK ){
-        sCtx.pPhrase->aTerm[i].bPrefix = pOrig->aTerm[i].bPrefix;
-        sCtx.pPhrase->aTerm[i].bFirst = pOrig->aTerm[i].bFirst;
-      }
-    }
-  }else{
-    /* This happens when parsing a token or quoted phrase that contains
-    ** no token characters at all. (e.g ... MATCH '""'). */
-    sCtx.pPhrase = tdsqlite3Fts5MallocZero(&rc, sizeof(Fts5ExprPhrase));
-  }
-
-  if( rc==SQLITE_OK ){
-    /* All the allocations succeeded. Put the expression object together. */
-    pNew->pIndex = pExpr->pIndex;
-    pNew->pConfig = pExpr->pConfig;
-    pNew->nPhrase = 1;
-    pNew->apExprPhrase[0] = sCtx.pPhrase;
-    pNew->pRoot->pNear->apPhrase[0] = sCtx.pPhrase;
-    pNew->pRoot->pNear->nPhrase = 1;
-    sCtx.pPhrase->pNode = pNew->pRoot;
-
-    if( pOrig->nTerm==1 
-     && pOrig->aTerm[0].pSynonym==0 
-     && pOrig->aTerm[0].bFirst==0 
-    ){
-      pNew->pRoot->eType = FTS5_TERM;
-      pNew->pRoot->xNext = fts5ExprNodeNext_TERM;
-    }else{
-      pNew->pRoot->eType = FTS5_STRING;
-      pNew->pRoot->xNext = fts5ExprNodeNext_STRING;
-    }
-  }else{
-    tdsqlite3Fts5ExprFree(pNew);
-    fts5ExprPhraseFree(sCtx.pPhrase);
-    pNew = 0;
-  }
-
-  *ppNew = pNew;
-  return rc;
-}
-
-
-/*
-** Token pTok has appeared in a MATCH expression where the NEAR operator
-** is expected. If token pTok does not contain "NEAR", store an error
-** in the pParse object.
-*/
-static void tdsqlite3Fts5ParseNear(Fts5Parse *pParse, Fts5Token *pTok){
-  if( pTok->n!=4 || memcmp("NEAR", pTok->p, 4) ){
-    tdsqlite3Fts5ParseError(
-        pParse, "fts5: syntax error near \"%.*s\"", pTok->n, pTok->p
-    );
-  }
-}
-
-static void tdsqlite3Fts5ParseSetDistance(
-  Fts5Parse *pParse, 
-  Fts5ExprNearset *pNear,
-  Fts5Token *p
-){
-  if( pNear ){
-    int nNear = 0;
-    int i;
-    if( p->n ){
-      for(i=0; i<p->n; i++){
-        char c = (char)p->p[i];
-        if( c<'0' || c>'9' ){
-          tdsqlite3Fts5ParseError(
-              pParse, "expected integer, got \"%.*s\"", p->n, p->p
-              );
-          return;
-        }
-        nNear = nNear * 10 + (p->p[i] - '0');
-      }
-    }else{
-      nNear = FTS5_DEFAULT_NEARDIST;
-    }
-    pNear->nNear = nNear;
-  }
-}
-
-/*
-** The second argument passed to this function may be NULL, or it may be
-** an existing Fts5Colset object. This function returns a pointer to
-** a new colset object containing the contents of (p) with new value column
-** number iCol appended. 
-**
-** If an OOM error occurs, store an error code in pParse and return NULL.
-** The old colset object (if any) is not freed in this case.
-*/
-static Fts5Colset *fts5ParseColset(
-  Fts5Parse *pParse,              /* Store SQLITE_NOMEM here if required */
-  Fts5Colset *p,                  /* Existing colset object */
-  int iCol                        /* New column to add to colset object */
-){
-  int nCol = p ? p->nCol : 0;     /* Num. columns already in colset object */
-  Fts5Colset *pNew;               /* New colset object to return */
-
-  assert( pParse->rc==SQLITE_OK );
-  assert( iCol>=0 && iCol<pParse->pConfig->nCol );
-
-  pNew = tdsqlite3_realloc64(p, sizeof(Fts5Colset) + sizeof(int)*nCol);
-  if( pNew==0 ){
-    pParse->rc = SQLITE_NOMEM;
-  }else{
-    int *aiCol = pNew->aiCol;
-    int i, j;
-    for(i=0; i<nCol; i++){
-      if( aiCol[i]==iCol ) return pNew;
-      if( aiCol[i]>iCol ) break;
-    }
-    for(j=nCol; j>i; j--){
-      aiCol[j] = aiCol[j-1];
-    }
-    aiCol[i] = iCol;
-    pNew->nCol = nCol+1;
-
-#ifndef NDEBUG
-    /* Check that the array is in order and contains no duplicate entries. */
-    for(i=1; i<pNew->nCol; i++) assert( pNew->aiCol[i]>pNew->aiCol[i-1] );
-#endif
-  }
-
-  return pNew;
-}
-
-/*
-** Allocate and return an Fts5Colset object specifying the inverse of
-** the colset passed as the second argument. Free the colset passed
-** as the second argument before returning.
-*/
-static Fts5Colset *tdsqlite3Fts5ParseColsetInvert(Fts5Parse *pParse, Fts5Colset *p){
-  Fts5Colset *pRet;
-  int nCol = pParse->pConfig->nCol;
-
-  pRet = (Fts5Colset*)tdsqlite3Fts5MallocZero(&pParse->rc, 
-      sizeof(Fts5Colset) + sizeof(int)*nCol
-  );
-  if( pRet ){
-    int i;
-    int iOld = 0;
-    for(i=0; i<nCol; i++){
-      if( iOld>=p->nCol || p->aiCol[iOld]!=i ){
-        pRet->aiCol[pRet->nCol++] = i;
-      }else{
-        iOld++;
-      }
-    }
-  }
-
-  tdsqlite3_free(p);
-  return pRet;
-}
-
-static Fts5Colset *tdsqlite3Fts5ParseColset(
-  Fts5Parse *pParse,              /* Store SQLITE_NOMEM here if required */
-  Fts5Colset *pColset,            /* Existing colset object */
-  Fts5Token *p
-){
-  Fts5Colset *pRet = 0;
-  int iCol;
-  char *z;                        /* Dequoted copy of token p */
-
-  z = tdsqlite3Fts5Strndup(&pParse->rc, p->p, p->n);
-  if( pParse->rc==SQLITE_OK ){
-    Fts5Config *pConfig = pParse->pConfig;
-    tdsqlite3Fts5Dequote(z);
-    for(iCol=0; iCol<pConfig->nCol; iCol++){
-      if( 0==tdsqlite3_stricmp(pConfig->azCol[iCol], z) ) break;
-    }
-    if( iCol==pConfig->nCol ){
-      tdsqlite3Fts5ParseError(pParse, "no such column: %s", z);
-    }else{
-      pRet = fts5ParseColset(pParse, pColset, iCol);
-    }
-    tdsqlite3_free(z);
-  }
-
-  if( pRet==0 ){
-    assert( pParse->rc!=SQLITE_OK );
-    tdsqlite3_free(pColset);
-  }
-
-  return pRet;
-}
-
-/*
-** If argument pOrig is NULL, or if (*pRc) is set to anything other than
-** SQLITE_OK when this function is called, NULL is returned. 
-**
-** Otherwise, a copy of (*pOrig) is made into memory obtained from
-** tdsqlite3Fts5MallocZero() and a pointer to it returned. If the allocation
-** fails, (*pRc) is set to SQLITE_NOMEM and NULL is returned.
-*/
-static Fts5Colset *fts5CloneColset(int *pRc, Fts5Colset *pOrig){
-  Fts5Colset *pRet;
-  if( pOrig ){
-    tdsqlite3_int64 nByte = sizeof(Fts5Colset) + (pOrig->nCol-1) * sizeof(int);
-    pRet = (Fts5Colset*)tdsqlite3Fts5MallocZero(pRc, nByte);
-    if( pRet ){ 
-      memcpy(pRet, pOrig, (size_t)nByte);
-    }
-  }else{
-    pRet = 0;
-  }
-  return pRet;
-}
-
-/*
-** Remove from colset pColset any columns that are not also in colset pMerge.
-*/
-static void fts5MergeColset(Fts5Colset *pColset, Fts5Colset *pMerge){
-  int iIn = 0;          /* Next input in pColset */
-  int iMerge = 0;       /* Next input in pMerge */
-  int iOut = 0;         /* Next output slot in pColset */
-
-  while( iIn<pColset->nCol && iMerge<pMerge->nCol ){
-    int iDiff = pColset->aiCol[iIn] - pMerge->aiCol[iMerge];
-    if( iDiff==0 ){
-      pColset->aiCol[iOut++] = pMerge->aiCol[iMerge];
-      iMerge++;
-      iIn++;
-    }else if( iDiff>0 ){
-      iMerge++;
-    }else{
-      iIn++;
-    }
-  }
-  pColset->nCol = iOut;
-}
-
-/*
-** Recursively apply colset pColset to expression node pNode and all of
-** its decendents. If (*ppFree) is not NULL, it contains a spare copy
-** of pColset. This function may use the spare copy and set (*ppFree) to
-** zero, or it may create copies of pColset using fts5CloneColset().
-*/
-static void fts5ParseSetColset(
-  Fts5Parse *pParse, 
-  Fts5ExprNode *pNode, 
-  Fts5Colset *pColset,
-  Fts5Colset **ppFree
-){
-  if( pParse->rc==SQLITE_OK ){
-    assert( pNode->eType==FTS5_TERM || pNode->eType==FTS5_STRING 
-         || pNode->eType==FTS5_AND  || pNode->eType==FTS5_OR
-         || pNode->eType==FTS5_NOT  || pNode->eType==FTS5_EOF
-    );
-    if( pNode->eType==FTS5_STRING || pNode->eType==FTS5_TERM ){
-      Fts5ExprNearset *pNear = pNode->pNear;
-      if( pNear->pColset ){
-        fts5MergeColset(pNear->pColset, pColset);
-        if( pNear->pColset->nCol==0 ){
-          pNode->eType = FTS5_EOF;
-          pNode->xNext = 0;
-        }
-      }else if( *ppFree ){
-        pNear->pColset = pColset;
-        *ppFree = 0;
-      }else{
-        pNear->pColset = fts5CloneColset(&pParse->rc, pColset);
-      }
-    }else{
-      int i;
-      assert( pNode->eType!=FTS5_EOF || pNode->nChild==0 );
-      for(i=0; i<pNode->nChild; i++){
-        fts5ParseSetColset(pParse, pNode->apChild[i], pColset, ppFree);
-      }
-    }
-  }
-}
-
-/*
-** Apply colset pColset to expression node pExpr and all of its descendents.
-*/
-static void tdsqlite3Fts5ParseSetColset(
-  Fts5Parse *pParse, 
-  Fts5ExprNode *pExpr, 
-  Fts5Colset *pColset 
-){
-  Fts5Colset *pFree = pColset;
-  if( pParse->pConfig->eDetail==FTS5_DETAIL_NONE ){
-    pParse->rc = SQLITE_ERROR;
-    pParse->zErr = tdsqlite3_mprintf(
-      "fts5: column queries are not supported (detail=none)"
-    );
-  }else{
-    fts5ParseSetColset(pParse, pExpr, pColset, &pFree);
-  }
-  tdsqlite3_free(pFree);
-}
-
-static void fts5ExprAssignXNext(Fts5ExprNode *pNode){
-  switch( pNode->eType ){
-    case FTS5_STRING: {
-      Fts5ExprNearset *pNear = pNode->pNear;
-      if( pNear->nPhrase==1 && pNear->apPhrase[0]->nTerm==1 
-       && pNear->apPhrase[0]->aTerm[0].pSynonym==0
-       && pNear->apPhrase[0]->aTerm[0].bFirst==0
-      ){
-        pNode->eType = FTS5_TERM;
-        pNode->xNext = fts5ExprNodeNext_TERM;
-      }else{
-        pNode->xNext = fts5ExprNodeNext_STRING;
-      }
-      break;
-    };
-
-    case FTS5_OR: {
-      pNode->xNext = fts5ExprNodeNext_OR;
-      break;
-    };
-
-    case FTS5_AND: {
-      pNode->xNext = fts5ExprNodeNext_AND;
-      break;
-    };
-
-    default: assert( pNode->eType==FTS5_NOT ); {
-      pNode->xNext = fts5ExprNodeNext_NOT;
-      break;
-    };
-  }
-}
-
-static void fts5ExprAddChildren(Fts5ExprNode *p, Fts5ExprNode *pSub){
-  if( p->eType!=FTS5_NOT && pSub->eType==p->eType ){
-    int nByte = sizeof(Fts5ExprNode*) * pSub->nChild;
-    memcpy(&p->apChild[p->nChild], pSub->apChild, nByte);
-    p->nChild += pSub->nChild;
-    tdsqlite3_free(pSub);
-  }else{
-    p->apChild[p->nChild++] = pSub;
-  }
-}
-
-/*
-** Allocate and return a new expression object. If anything goes wrong (i.e.
-** OOM error), leave an error code in pParse and return NULL.
-*/
-static Fts5ExprNode *tdsqlite3Fts5ParseNode(
-  Fts5Parse *pParse,              /* Parse context */
-  int eType,                      /* FTS5_STRING, AND, OR or NOT */
-  Fts5ExprNode *pLeft,            /* Left hand child expression */
-  Fts5ExprNode *pRight,           /* Right hand child expression */
-  Fts5ExprNearset *pNear          /* For STRING expressions, the near cluster */
-){
-  Fts5ExprNode *pRet = 0;
-
-  if( pParse->rc==SQLITE_OK ){
-    int nChild = 0;               /* Number of children of returned node */
-    tdsqlite3_int64 nByte;          /* Bytes of space to allocate for this node */
- 
-    assert( (eType!=FTS5_STRING && !pNear)
-         || (eType==FTS5_STRING && !pLeft && !pRight)
-    );
-    if( eType==FTS5_STRING && pNear==0 ) return 0;
-    if( eType!=FTS5_STRING && pLeft==0 ) return pRight;
-    if( eType!=FTS5_STRING && pRight==0 ) return pLeft;
-
-    if( eType==FTS5_NOT ){
-      nChild = 2;
-    }else if( eType==FTS5_AND || eType==FTS5_OR ){
-      nChild = 2;
-      if( pLeft->eType==eType ) nChild += pLeft->nChild-1;
-      if( pRight->eType==eType ) nChild += pRight->nChild-1;
-    }
-
-    nByte = sizeof(Fts5ExprNode) + sizeof(Fts5ExprNode*)*(nChild-1);
-    pRet = (Fts5ExprNode*)tdsqlite3Fts5MallocZero(&pParse->rc, nByte);
-
-    if( pRet ){
-      pRet->eType = eType;
-      pRet->pNear = pNear;
-      fts5ExprAssignXNext(pRet);
-      if( eType==FTS5_STRING ){
-        int iPhrase;
-        for(iPhrase=0; iPhrase<pNear->nPhrase; iPhrase++){
-          pNear->apPhrase[iPhrase]->pNode = pRet;
-          if( pNear->apPhrase[iPhrase]->nTerm==0 ){
-            pRet->xNext = 0;
-            pRet->eType = FTS5_EOF;
-          }
-        }
-
-        if( pParse->pConfig->eDetail!=FTS5_DETAIL_FULL ){
-          Fts5ExprPhrase *pPhrase = pNear->apPhrase[0];
-          if( pNear->nPhrase!=1 
-           || pPhrase->nTerm>1
-           || (pPhrase->nTerm>0 && pPhrase->aTerm[0].bFirst)
-          ){
-            assert( pParse->rc==SQLITE_OK );
-            pParse->rc = SQLITE_ERROR;
-            assert( pParse->zErr==0 );
-            pParse->zErr = tdsqlite3_mprintf(
-                "fts5: %s queries are not supported (detail!=full)", 
-                pNear->nPhrase==1 ? "phrase": "NEAR"
-                );
-            tdsqlite3_free(pRet);
-            pRet = 0;
-          }
-        }
-      }else{
-        fts5ExprAddChildren(pRet, pLeft);
-        fts5ExprAddChildren(pRet, pRight);
-      }
-    }
-  }
-
-  if( pRet==0 ){
-    assert( pParse->rc!=SQLITE_OK );
-    tdsqlite3Fts5ParseNodeFree(pLeft);
-    tdsqlite3Fts5ParseNodeFree(pRight);
-    tdsqlite3Fts5ParseNearsetFree(pNear);
-  }
-  return pRet;
-}
-
-static Fts5ExprNode *tdsqlite3Fts5ParseImplicitAnd(
-  Fts5Parse *pParse,              /* Parse context */
-  Fts5ExprNode *pLeft,            /* Left hand child expression */
-  Fts5ExprNode *pRight            /* Right hand child expression */
-){
-  Fts5ExprNode *pRet = 0;
-  Fts5ExprNode *pPrev;
-
-  if( pParse->rc ){
-    tdsqlite3Fts5ParseNodeFree(pLeft);
-    tdsqlite3Fts5ParseNodeFree(pRight);
-  }else{
-
-    assert( pLeft->eType==FTS5_STRING 
-        || pLeft->eType==FTS5_TERM
-        || pLeft->eType==FTS5_EOF
-        || pLeft->eType==FTS5_AND
-    );
-    assert( pRight->eType==FTS5_STRING 
-        || pRight->eType==FTS5_TERM 
-        || pRight->eType==FTS5_EOF 
-    );
-
-    if( pLeft->eType==FTS5_AND ){
-      pPrev = pLeft->apChild[pLeft->nChild-1];
-    }else{
-      pPrev = pLeft;
-    }
-    assert( pPrev->eType==FTS5_STRING 
-        || pPrev->eType==FTS5_TERM 
-        || pPrev->eType==FTS5_EOF 
-        );
-
-    if( pRight->eType==FTS5_EOF ){
-      assert( pParse->apPhrase[pParse->nPhrase-1]==pRight->pNear->apPhrase[0] );
-      tdsqlite3Fts5ParseNodeFree(pRight);
-      pRet = pLeft;
-      pParse->nPhrase--;
-    }
-    else if( pPrev->eType==FTS5_EOF ){
-      Fts5ExprPhrase **ap;
-
-      if( pPrev==pLeft ){
-        pRet = pRight;
-      }else{
-        pLeft->apChild[pLeft->nChild-1] = pRight;
-        pRet = pLeft;
-      }
-
-      ap = &pParse->apPhrase[pParse->nPhrase-1-pRight->pNear->nPhrase];
-      assert( ap[0]==pPrev->pNear->apPhrase[0] );
-      memmove(ap, &ap[1], sizeof(Fts5ExprPhrase*)*pRight->pNear->nPhrase);
-      pParse->nPhrase--;
-
-      tdsqlite3Fts5ParseNodeFree(pPrev);
-    }
-    else{
-      pRet = tdsqlite3Fts5ParseNode(pParse, FTS5_AND, pLeft, pRight, 0);
-    }
-  }
-
-  return pRet;
-}
-
-static char *fts5ExprTermPrint(Fts5ExprTerm *pTerm){
-  tdsqlite3_int64 nByte = 0;
-  Fts5ExprTerm *p;
-  char *zQuoted;
-
-  /* Determine the maximum amount of space required. */
-  for(p=pTerm; p; p=p->pSynonym){
-    nByte += (int)strlen(pTerm->zTerm) * 2 + 3 + 2;
-  }
-  zQuoted = tdsqlite3_malloc64(nByte);
-
-  if( zQuoted ){
-    int i = 0;
-    for(p=pTerm; p; p=p->pSynonym){
-      char *zIn = p->zTerm;
-      zQuoted[i++] = '"';
-      while( *zIn ){
-        if( *zIn=='"' ) zQuoted[i++] = '"';
-        zQuoted[i++] = *zIn++;
-      }
-      zQuoted[i++] = '"';
-      if( p->pSynonym ) zQuoted[i++] = '|';
-    }
-    if( pTerm->bPrefix ){
-      zQuoted[i++] = ' ';
-      zQuoted[i++] = '*';
-    }
-    zQuoted[i++] = '\0';
-  }
-  return zQuoted;
-}
-
-static char *fts5PrintfAppend(char *zApp, const char *zFmt, ...){
-  char *zNew;
-  va_list ap;
-  va_start(ap, zFmt);
-  zNew = tdsqlite3_vmprintf(zFmt, ap);
-  va_end(ap);
-  if( zApp && zNew ){
-    char *zNew2 = tdsqlite3_mprintf("%s%s", zApp, zNew);
-    tdsqlite3_free(zNew);
-    zNew = zNew2;
-  }
-  tdsqlite3_free(zApp);
-  return zNew;
-}
-
-/*
-** Compose a tcl-readable representation of expression pExpr. Return a 
-** pointer to a buffer containing that representation. It is the 
-** responsibility of the caller to at some point free the buffer using 
-** tdsqlite3_free().
-*/
-static char *fts5ExprPrintTcl(
-  Fts5Config *pConfig, 
-  const char *zNearsetCmd,
-  Fts5ExprNode *pExpr
-){
-  char *zRet = 0;
-  if( pExpr->eType==FTS5_STRING || pExpr->eType==FTS5_TERM ){
-    Fts5ExprNearset *pNear = pExpr->pNear;
-    int i; 
-    int iTerm;
-
-    zRet = fts5PrintfAppend(zRet, "%s ", zNearsetCmd);
-    if( zRet==0 ) return 0;
-    if( pNear->pColset ){
-      int *aiCol = pNear->pColset->aiCol;
-      int nCol = pNear->pColset->nCol;
-      if( nCol==1 ){
-        zRet = fts5PrintfAppend(zRet, "-col %d ", aiCol[0]);
-      }else{
-        zRet = fts5PrintfAppend(zRet, "-col {%d", aiCol[0]);
-        for(i=1; i<pNear->pColset->nCol; i++){
-          zRet = fts5PrintfAppend(zRet, " %d", aiCol[i]);
-        }
-        zRet = fts5PrintfAppend(zRet, "} ");
-      }
-      if( zRet==0 ) return 0;
-    }
-
-    if( pNear->nPhrase>1 ){
-      zRet = fts5PrintfAppend(zRet, "-near %d ", pNear->nNear);
-      if( zRet==0 ) return 0;
-    }
-
-    zRet = fts5PrintfAppend(zRet, "--");
-    if( zRet==0 ) return 0;
-
-    for(i=0; i<pNear->nPhrase; i++){
-      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
-
-      zRet = fts5PrintfAppend(zRet, " {");
-      for(iTerm=0; zRet && iTerm<pPhrase->nTerm; iTerm++){
-        char *zTerm = pPhrase->aTerm[iTerm].zTerm;
-        zRet = fts5PrintfAppend(zRet, "%s%s", iTerm==0?"":" ", zTerm);
-        if( pPhrase->aTerm[iTerm].bPrefix ){
-          zRet = fts5PrintfAppend(zRet, "*");
-        }
-      }
-
-      if( zRet ) zRet = fts5PrintfAppend(zRet, "}");
-      if( zRet==0 ) return 0;
-    }
-
-  }else{
-    char const *zOp = 0;
-    int i;
-    switch( pExpr->eType ){
-      case FTS5_AND: zOp = "AND"; break;
-      case FTS5_NOT: zOp = "NOT"; break;
-      default: 
-        assert( pExpr->eType==FTS5_OR );
-        zOp = "OR"; 
-        break;
-    }
-
-    zRet = tdsqlite3_mprintf("%s", zOp);
-    for(i=0; zRet && i<pExpr->nChild; i++){
-      char *z = fts5ExprPrintTcl(pConfig, zNearsetCmd, pExpr->apChild[i]);
-      if( !z ){
-        tdsqlite3_free(zRet);
-        zRet = 0;
-      }else{
-        zRet = fts5PrintfAppend(zRet, " [%z]", z);
-      }
-    }
-  }
-
-  return zRet;
-}
-
-static char *fts5ExprPrint(Fts5Config *pConfig, Fts5ExprNode *pExpr){
-  char *zRet = 0;
-  if( pExpr->eType==0 ){
-    return tdsqlite3_mprintf("\"\"");
-  }else
-  if( pExpr->eType==FTS5_STRING || pExpr->eType==FTS5_TERM ){
-    Fts5ExprNearset *pNear = pExpr->pNear;
-    int i; 
-    int iTerm;
-
-    if( pNear->pColset ){
-      int iCol = pNear->pColset->aiCol[0];
-      zRet = fts5PrintfAppend(zRet, "%s : ", pConfig->azCol[iCol]);
-      if( zRet==0 ) return 0;
-    }
-
-    if( pNear->nPhrase>1 ){
-      zRet = fts5PrintfAppend(zRet, "NEAR(");
-      if( zRet==0 ) return 0;
-    }
-
-    for(i=0; i<pNear->nPhrase; i++){
-      Fts5ExprPhrase *pPhrase = pNear->apPhrase[i];
-      if( i!=0 ){
-        zRet = fts5PrintfAppend(zRet, " ");
-        if( zRet==0 ) return 0;
-      }
-      for(iTerm=0; iTerm<pPhrase->nTerm; iTerm++){
-        char *zTerm = fts5ExprTermPrint(&pPhrase->aTerm[iTerm]);
-        if( zTerm ){
-          zRet = fts5PrintfAppend(zRet, "%s%s", iTerm==0?"":" + ", zTerm);
-          tdsqlite3_free(zTerm);
-        }
-        if( zTerm==0 || zRet==0 ){
-          tdsqlite3_free(zRet);
-          return 0;
-        }
-      }
-    }
-
-    if( pNear->nPhrase>1 ){
-      zRet = fts5PrintfAppend(zRet, ", %d)", pNear->nNear);
-      if( zRet==0 ) return 0;
-    }
-
-  }else{
-    char const *zOp = 0;
-    int i;
-
-    switch( pExpr->eType ){
-      case FTS5_AND: zOp = " AND "; break;
-      case FTS5_NOT: zOp = " NOT "; break;
-      default:  
-        assert( pExpr->eType==FTS5_OR );
-        zOp = " OR "; 
-        break;
-    }
-
-    for(i=0; i<pExpr->nChild; i++){
-      char *z = fts5ExprPrint(pConfig, pExpr->apChild[i]);
-      if( z==0 ){
-        tdsqlite3_free(zRet);
-        zRet = 0;
-      }else{
-        int e = pExpr->apChild[i]->eType;
-        int b = (e!=FTS5_STRING && e!=FTS5_TERM && e!=FTS5_EOF);
-        zRet = fts5PrintfAppend(zRet, "%s%s%z%s", 
-            (i==0 ? "" : zOp),
-            (b?"(":""), z, (b?")":"")
-        );
-      }
-      if( zRet==0 ) break;
-    }
-  }
-
-  return zRet;
-}
-
-/*
-** The implementation of user-defined scalar functions fts5_expr() (bTcl==0)
-** and fts5_expr_tcl() (bTcl!=0).
-*/
-static void fts5ExprFunction(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args */
-  tdsqlite3_value **apVal,          /* Function arguments */
-  int bTcl
-){
-  Fts5Global *pGlobal = (Fts5Global*)tdsqlite3_user_data(pCtx);
-  tdsqlite3 *db = tdsqlite3_context_db_handle(pCtx);
-  const char *zExpr = 0;
-  char *zErr = 0;
-  Fts5Expr *pExpr = 0;
-  int rc;
-  int i;
-
-  const char **azConfig;          /* Array of arguments for Fts5Config */
-  const char *zNearsetCmd = "nearset";
-  int nConfig;                    /* Size of azConfig[] */
-  Fts5Config *pConfig = 0;
-  int iArg = 1;
-
-  if( nArg<1 ){
-    zErr = tdsqlite3_mprintf("wrong number of arguments to function %s",
-        bTcl ? "fts5_expr_tcl" : "fts5_expr"
-    );
-    tdsqlite3_result_error(pCtx, zErr, -1);
-    tdsqlite3_free(zErr);
-    return;
-  }
-
-  if( bTcl && nArg>1 ){
-    zNearsetCmd = (const char*)tdsqlite3_value_text(apVal[1]);
-    iArg = 2;
-  }
-
-  nConfig = 3 + (nArg-iArg);
-  azConfig = (const char**)tdsqlite3_malloc64(sizeof(char*) * nConfig);
-  if( azConfig==0 ){
-    tdsqlite3_result_error_nomem(pCtx);
-    return;
-  }
-  azConfig[0] = 0;
-  azConfig[1] = "main";
-  azConfig[2] = "tbl";
-  for(i=3; iArg<nArg; iArg++){
-    const char *z = (const char*)tdsqlite3_value_text(apVal[iArg]);
-    azConfig[i++] = (z ? z : "");
-  }
-
-  zExpr = (const char*)tdsqlite3_value_text(apVal[0]);
-  if( zExpr==0 ) zExpr = "";
-
-  rc = tdsqlite3Fts5ConfigParse(pGlobal, db, nConfig, azConfig, &pConfig, &zErr);
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5ExprNew(pConfig, pConfig->nCol, zExpr, &pExpr, &zErr);
-  }
-  if( rc==SQLITE_OK ){
-    char *zText;
-    if( pExpr->pRoot->xNext==0 ){
-      zText = tdsqlite3_mprintf("");
-    }else if( bTcl ){
-      zText = fts5ExprPrintTcl(pConfig, zNearsetCmd, pExpr->pRoot);
-    }else{
-      zText = fts5ExprPrint(pConfig, pExpr->pRoot);
-    }
-    if( zText==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      tdsqlite3_result_text(pCtx, zText, -1, SQLITE_TRANSIENT);
-      tdsqlite3_free(zText);
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    if( zErr ){
-      tdsqlite3_result_error(pCtx, zErr, -1);
-      tdsqlite3_free(zErr);
-    }else{
-      tdsqlite3_result_error_code(pCtx, rc);
-    }
-  }
-  tdsqlite3_free((void *)azConfig);
-  tdsqlite3Fts5ConfigFree(pConfig);
-  tdsqlite3Fts5ExprFree(pExpr);
-}
-
-static void fts5ExprFunctionHr(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args */
-  tdsqlite3_value **apVal           /* Function arguments */
-){
-  fts5ExprFunction(pCtx, nArg, apVal, 0);
-}
-static void fts5ExprFunctionTcl(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args */
-  tdsqlite3_value **apVal           /* Function arguments */
-){
-  fts5ExprFunction(pCtx, nArg, apVal, 1);
-}
-
-/*
-** The implementation of an SQLite user-defined-function that accepts a
-** single integer as an argument. If the integer is an alpha-numeric 
-** unicode code point, 1 is returned. Otherwise 0.
-*/
-static void fts5ExprIsAlnum(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args */
-  tdsqlite3_value **apVal           /* Function arguments */
-){
-  int iCode;
-  u8 aArr[32];
-  if( nArg!=1 ){
-    tdsqlite3_result_error(pCtx, 
-        "wrong number of arguments to function fts5_isalnum", -1
-    );
-    return;
-  }
-  memset(aArr, 0, sizeof(aArr));
-  tdsqlite3Fts5UnicodeCatParse("L*", aArr);
-  tdsqlite3Fts5UnicodeCatParse("N*", aArr);
-  tdsqlite3Fts5UnicodeCatParse("Co", aArr);
-  iCode = tdsqlite3_value_int(apVal[0]);
-  tdsqlite3_result_int(pCtx, aArr[tdsqlite3Fts5UnicodeCategory((u32)iCode)]);
-}
-
-static void fts5ExprFold(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args */
-  tdsqlite3_value **apVal           /* Function arguments */
-){
-  if( nArg!=1 && nArg!=2 ){
-    tdsqlite3_result_error(pCtx, 
-        "wrong number of arguments to function fts5_fold", -1
-    );
-  }else{
-    int iCode;
-    int bRemoveDiacritics = 0;
-    iCode = tdsqlite3_value_int(apVal[0]);
-    if( nArg==2 ) bRemoveDiacritics = tdsqlite3_value_int(apVal[1]);
-    tdsqlite3_result_int(pCtx, tdsqlite3Fts5UnicodeFold(iCode, bRemoveDiacritics));
-  }
-}
-
-/*
-** This is called during initialization to register the fts5_expr() scalar
-** UDF with the SQLite handle passed as the only argument.
-*/
-static int tdsqlite3Fts5ExprInit(Fts5Global *pGlobal, tdsqlite3 *db){
-  struct Fts5ExprFunc {
-    const char *z;
-    void (*x)(tdsqlite3_context*,int,tdsqlite3_value**);
-  } aFunc[] = {
-    { "fts5_expr",     fts5ExprFunctionHr },
-    { "fts5_expr_tcl", fts5ExprFunctionTcl },
-    { "fts5_isalnum",  fts5ExprIsAlnum },
-    { "fts5_fold",     fts5ExprFold },
-  };
-  int i;
-  int rc = SQLITE_OK;
-  void *pCtx = (void*)pGlobal;
-
-  for(i=0; rc==SQLITE_OK && i<ArraySize(aFunc); i++){
-    struct Fts5ExprFunc *p = &aFunc[i];
-    rc = tdsqlite3_create_function(db, p->z, -1, SQLITE_UTF8, pCtx, p->x, 0, 0);
-  }
-
-  /* Avoid warnings indicating that tdsqlite3Fts5ParserTrace() and
-  ** tdsqlite3Fts5ParserFallback() are unused */
-#ifndef NDEBUG
-  (void)tdsqlite3Fts5ParserTrace;
-#endif
-  (void)tdsqlite3Fts5ParserFallback;
-
-  return rc;
-}
-
-/*
-** Return the number of phrases in expression pExpr.
-*/
-static int tdsqlite3Fts5ExprPhraseCount(Fts5Expr *pExpr){
-  return (pExpr ? pExpr->nPhrase : 0);
-}
-
-/*
-** Return the number of terms in the iPhrase'th phrase in pExpr.
-*/
-static int tdsqlite3Fts5ExprPhraseSize(Fts5Expr *pExpr, int iPhrase){
-  if( iPhrase<0 || iPhrase>=pExpr->nPhrase ) return 0;
-  return pExpr->apExprPhrase[iPhrase]->nTerm;
-}
-
-/*
-** This function is used to access the current position list for phrase
-** iPhrase.
-*/
-static int tdsqlite3Fts5ExprPoslist(Fts5Expr *pExpr, int iPhrase, const u8 **pa){
-  int nRet;
-  Fts5ExprPhrase *pPhrase = pExpr->apExprPhrase[iPhrase];
-  Fts5ExprNode *pNode = pPhrase->pNode;
-  if( pNode->bEof==0 && pNode->iRowid==pExpr->pRoot->iRowid ){
-    *pa = pPhrase->poslist.p;
-    nRet = pPhrase->poslist.n;
-  }else{
-    *pa = 0;
-    nRet = 0;
-  }
-  return nRet;
-}
-
-struct Fts5PoslistPopulator {
-  Fts5PoslistWriter writer;
-  int bOk;                        /* True if ok to populate */
-  int bMiss;
-};
-
-static Fts5PoslistPopulator *tdsqlite3Fts5ExprClearPoslists(Fts5Expr *pExpr, int bLive){
-  Fts5PoslistPopulator *pRet;
-  pRet = tdsqlite3_malloc64(sizeof(Fts5PoslistPopulator)*pExpr->nPhrase);
-  if( pRet ){
-    int i;
-    memset(pRet, 0, sizeof(Fts5PoslistPopulator)*pExpr->nPhrase);
-    for(i=0; i<pExpr->nPhrase; i++){
-      Fts5Buffer *pBuf = &pExpr->apExprPhrase[i]->poslist;
-      Fts5ExprNode *pNode = pExpr->apExprPhrase[i]->pNode;
-      assert( pExpr->apExprPhrase[i]->nTerm==1 );
-      if( bLive && 
-          (pBuf->n==0 || pNode->iRowid!=pExpr->pRoot->iRowid || pNode->bEof)
-      ){
-        pRet[i].bMiss = 1;
-      }else{
-        pBuf->n = 0;
-      }
-    }
-  }
-  return pRet;
-}
-
-struct Fts5ExprCtx {
-  Fts5Expr *pExpr;
-  Fts5PoslistPopulator *aPopulator;
-  i64 iOff;
-};
-typedef struct Fts5ExprCtx Fts5ExprCtx;
-
-/*
-** TODO: Make this more efficient!
-*/
-static int fts5ExprColsetTest(Fts5Colset *pColset, int iCol){
-  int i;
-  for(i=0; i<pColset->nCol; i++){
-    if( pColset->aiCol[i]==iCol ) return 1;
-  }
-  return 0;
-}
-
-static int fts5ExprPopulatePoslistsCb(
-  void *pCtx,                /* Copy of 2nd argument to xTokenize() */
-  int tflags,                /* Mask of FTS5_TOKEN_* flags */
-  const char *pToken,        /* Pointer to buffer containing token */
-  int nToken,                /* Size of token in bytes */
-  int iUnused1,              /* Byte offset of token within input text */
-  int iUnused2               /* Byte offset of end of token within input text */
-){
-  Fts5ExprCtx *p = (Fts5ExprCtx*)pCtx;
-  Fts5Expr *pExpr = p->pExpr;
-  int i;
-
-  UNUSED_PARAM2(iUnused1, iUnused2);
-
-  if( nToken>FTS5_MAX_TOKEN_SIZE ) nToken = FTS5_MAX_TOKEN_SIZE;
-  if( (tflags & FTS5_TOKEN_COLOCATED)==0 ) p->iOff++;
-  for(i=0; i<pExpr->nPhrase; i++){
-    Fts5ExprTerm *pTerm;
-    if( p->aPopulator[i].bOk==0 ) continue;
-    for(pTerm=&pExpr->apExprPhrase[i]->aTerm[0]; pTerm; pTerm=pTerm->pSynonym){
-      int nTerm = (int)strlen(pTerm->zTerm);
-      if( (nTerm==nToken || (nTerm<nToken && pTerm->bPrefix))
-       && memcmp(pTerm->zTerm, pToken, nTerm)==0
-      ){
-        int rc = tdsqlite3Fts5PoslistWriterAppend(
-            &pExpr->apExprPhrase[i]->poslist, &p->aPopulator[i].writer, p->iOff
-        );
-        if( rc ) return rc;
-        break;
-      }
-    }
-  }
-  return SQLITE_OK;
-}
-
-static int tdsqlite3Fts5ExprPopulatePoslists(
-  Fts5Config *pConfig,
-  Fts5Expr *pExpr, 
-  Fts5PoslistPopulator *aPopulator,
-  int iCol, 
-  const char *z, int n
-){
-  int i;
-  Fts5ExprCtx sCtx;
-  sCtx.pExpr = pExpr;
-  sCtx.aPopulator = aPopulator;
-  sCtx.iOff = (((i64)iCol) << 32) - 1;
-
-  for(i=0; i<pExpr->nPhrase; i++){
-    Fts5ExprNode *pNode = pExpr->apExprPhrase[i]->pNode;
-    Fts5Colset *pColset = pNode->pNear->pColset;
-    if( (pColset && 0==fts5ExprColsetTest(pColset, iCol)) 
-     || aPopulator[i].bMiss
-    ){
-      aPopulator[i].bOk = 0;
-    }else{
-      aPopulator[i].bOk = 1;
-    }
-  }
-
-  return tdsqlite3Fts5Tokenize(pConfig, 
-      FTS5_TOKENIZE_DOCUMENT, z, n, (void*)&sCtx, fts5ExprPopulatePoslistsCb
-  );
-}
-
-static void fts5ExprClearPoslists(Fts5ExprNode *pNode){
-  if( pNode->eType==FTS5_TERM || pNode->eType==FTS5_STRING ){
-    pNode->pNear->apPhrase[0]->poslist.n = 0;
-  }else{
-    int i;
-    for(i=0; i<pNode->nChild; i++){
-      fts5ExprClearPoslists(pNode->apChild[i]);
-    }
-  }
-}
-
-static int fts5ExprCheckPoslists(Fts5ExprNode *pNode, i64 iRowid){
-  pNode->iRowid = iRowid;
-  pNode->bEof = 0;
-  switch( pNode->eType ){
-    case FTS5_TERM:
-    case FTS5_STRING:
-      return (pNode->pNear->apPhrase[0]->poslist.n>0);
-
-    case FTS5_AND: {
-      int i;
-      for(i=0; i<pNode->nChild; i++){
-        if( fts5ExprCheckPoslists(pNode->apChild[i], iRowid)==0 ){
-          fts5ExprClearPoslists(pNode);
-          return 0;
-        }
-      }
-      break;
-    }
-
-    case FTS5_OR: {
-      int i;
-      int bRet = 0;
-      for(i=0; i<pNode->nChild; i++){
-        if( fts5ExprCheckPoslists(pNode->apChild[i], iRowid) ){
-          bRet = 1;
-        }
-      }
-      return bRet;
-    }
-
-    default: {
-      assert( pNode->eType==FTS5_NOT );
-      if( 0==fts5ExprCheckPoslists(pNode->apChild[0], iRowid)
-          || 0!=fts5ExprCheckPoslists(pNode->apChild[1], iRowid)
-        ){
-        fts5ExprClearPoslists(pNode);
-        return 0;
-      }
-      break;
-    }
-  }
-  return 1;
-}
-
-static void tdsqlite3Fts5ExprCheckPoslists(Fts5Expr *pExpr, i64 iRowid){
-  fts5ExprCheckPoslists(pExpr->pRoot, iRowid);
-}
-
-/*
-** This function is only called for detail=columns tables. 
-*/
-static int tdsqlite3Fts5ExprPhraseCollist(
-  Fts5Expr *pExpr, 
-  int iPhrase, 
-  const u8 **ppCollist, 
-  int *pnCollist
-){
-  Fts5ExprPhrase *pPhrase = pExpr->apExprPhrase[iPhrase];
-  Fts5ExprNode *pNode = pPhrase->pNode;
-  int rc = SQLITE_OK;
-
-  assert( iPhrase>=0 && iPhrase<pExpr->nPhrase );
-  assert( pExpr->pConfig->eDetail==FTS5_DETAIL_COLUMNS );
-
-  if( pNode->bEof==0 
-   && pNode->iRowid==pExpr->pRoot->iRowid 
-   && pPhrase->poslist.n>0
-  ){
-    Fts5ExprTerm *pTerm = &pPhrase->aTerm[0];
-    if( pTerm->pSynonym ){
-      Fts5Buffer *pBuf = (Fts5Buffer*)&pTerm->pSynonym[1];
-      rc = fts5ExprSynonymList(
-          pTerm, pNode->iRowid, pBuf, (u8**)ppCollist, pnCollist
-      );
-    }else{
-      *ppCollist = pPhrase->aTerm[0].pIter->pData;
-      *pnCollist = pPhrase->aTerm[0].pIter->nData;
-    }
-  }else{
-    *ppCollist = 0;
-    *pnCollist = 0;
-  }
-
-  return rc;
-}
-
-/*
-** 2014 August 11
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-*/
-
-
-
-/* #include "fts5Int.h" */
-
-typedef struct Fts5HashEntry Fts5HashEntry;
-
-/*
-** This file contains the implementation of an in-memory hash table used
-** to accumuluate "term -> doclist" content before it is flused to a level-0
-** segment.
-*/
-
-
-struct Fts5Hash {
-  int eDetail;                    /* Copy of Fts5Config.eDetail */
-  int *pnByte;                    /* Pointer to bytes counter */
-  int nEntry;                     /* Number of entries currently in hash */
-  int nSlot;                      /* Size of aSlot[] array */
-  Fts5HashEntry *pScan;           /* Current ordered scan item */
-  Fts5HashEntry **aSlot;          /* Array of hash slots */
-};
-
-/*
-** Each entry in the hash table is represented by an object of the 
-** following type. Each object, its key (a nul-terminated string) and 
-** its current data are stored in a single memory allocation. The 
-** key immediately follows the object in memory. The position list
-** data immediately follows the key data in memory.
-**
-** The data that follows the key is in a similar, but not identical format
-** to the doclist data stored in the database. It is:
-**
-**   * Rowid, as a varint
-**   * Position list, without 0x00 terminator.
-**   * Size of previous position list and rowid, as a 4 byte
-**     big-endian integer.
-**
-** iRowidOff:
-**   Offset of last rowid written to data area. Relative to first byte of
-**   structure.
-**
-** nData:
-**   Bytes of data written since iRowidOff.
-*/
-struct Fts5HashEntry {
-  Fts5HashEntry *pHashNext;       /* Next hash entry with same hash-key */
-  Fts5HashEntry *pScanNext;       /* Next entry in sorted order */
-  
-  int nAlloc;                     /* Total size of allocation */
-  int iSzPoslist;                 /* Offset of space for 4-byte poslist size */
-  int nData;                      /* Total bytes of data (incl. structure) */
-  int nKey;                       /* Length of key in bytes */
-  u8 bDel;                        /* Set delete-flag @ iSzPoslist */
-  u8 bContent;                    /* Set content-flag (detail=none mode) */
-  i16 iCol;                       /* Column of last value written */
-  int iPos;                       /* Position of last value written */
-  i64 iRowid;                     /* Rowid of last value written */
-};
-
-/*
-** Eqivalent to:
-**
-**   char *fts5EntryKey(Fts5HashEntry *pEntry){ return zKey; }
-*/
-#define fts5EntryKey(p) ( ((char *)(&(p)[1])) )
-
-
-/*
-** Allocate a new hash table.
-*/
-static int tdsqlite3Fts5HashNew(Fts5Config *pConfig, Fts5Hash **ppNew, int *pnByte){
-  int rc = SQLITE_OK;
-  Fts5Hash *pNew;
-
-  *ppNew = pNew = (Fts5Hash*)tdsqlite3_malloc(sizeof(Fts5Hash));
-  if( pNew==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    tdsqlite3_int64 nByte;
-    memset(pNew, 0, sizeof(Fts5Hash));
-    pNew->pnByte = pnByte;
-    pNew->eDetail = pConfig->eDetail;
-
-    pNew->nSlot = 1024;
-    nByte = sizeof(Fts5HashEntry*) * pNew->nSlot;
-    pNew->aSlot = (Fts5HashEntry**)tdsqlite3_malloc64(nByte);
-    if( pNew->aSlot==0 ){
-      tdsqlite3_free(pNew);
-      *ppNew = 0;
-      rc = SQLITE_NOMEM;
-    }else{
-      memset(pNew->aSlot, 0, (size_t)nByte);
-    }
-  }
-  return rc;
-}
-
-/*
-** Free a hash table object.
-*/
-static void tdsqlite3Fts5HashFree(Fts5Hash *pHash){
-  if( pHash ){
-    tdsqlite3Fts5HashClear(pHash);
-    tdsqlite3_free(pHash->aSlot);
-    tdsqlite3_free(pHash);
-  }
-}
-
-/*
-** Empty (but do not delete) a hash table.
-*/
-static void tdsqlite3Fts5HashClear(Fts5Hash *pHash){
-  int i;
-  for(i=0; i<pHash->nSlot; i++){
-    Fts5HashEntry *pNext;
-    Fts5HashEntry *pSlot;
-    for(pSlot=pHash->aSlot[i]; pSlot; pSlot=pNext){
-      pNext = pSlot->pHashNext;
-      tdsqlite3_free(pSlot);
-    }
-  }
-  memset(pHash->aSlot, 0, pHash->nSlot * sizeof(Fts5HashEntry*));
-  pHash->nEntry = 0;
-}
-
-static unsigned int fts5HashKey(int nSlot, const u8 *p, int n){
-  int i;
-  unsigned int h = 13;
-  for(i=n-1; i>=0; i--){
-    h = (h << 3) ^ h ^ p[i];
-  }
-  return (h % nSlot);
-}
-
-static unsigned int fts5HashKey2(int nSlot, u8 b, const u8 *p, int n){
-  int i;
-  unsigned int h = 13;
-  for(i=n-1; i>=0; i--){
-    h = (h << 3) ^ h ^ p[i];
-  }
-  h = (h << 3) ^ h ^ b;
-  return (h % nSlot);
-}
-
-/*
-** Resize the hash table by doubling the number of slots.
-*/
-static int fts5HashResize(Fts5Hash *pHash){
-  int nNew = pHash->nSlot*2;
-  int i;
-  Fts5HashEntry **apNew;
-  Fts5HashEntry **apOld = pHash->aSlot;
-
-  apNew = (Fts5HashEntry**)tdsqlite3_malloc64(nNew*sizeof(Fts5HashEntry*));
-  if( !apNew ) return SQLITE_NOMEM;
-  memset(apNew, 0, nNew*sizeof(Fts5HashEntry*));
-
-  for(i=0; i<pHash->nSlot; i++){
-    while( apOld[i] ){
-      unsigned int iHash;
-      Fts5HashEntry *p = apOld[i];
-      apOld[i] = p->pHashNext;
-      iHash = fts5HashKey(nNew, (u8*)fts5EntryKey(p),
-                          (int)strlen(fts5EntryKey(p)));
-      p->pHashNext = apNew[iHash];
-      apNew[iHash] = p;
-    }
-  }
-
-  tdsqlite3_free(apOld);
-  pHash->nSlot = nNew;
-  pHash->aSlot = apNew;
-  return SQLITE_OK;
-}
-
-static int fts5HashAddPoslistSize(
-  Fts5Hash *pHash, 
-  Fts5HashEntry *p,
-  Fts5HashEntry *p2
-){
-  int nRet = 0;
-  if( p->iSzPoslist ){
-    u8 *pPtr = p2 ? (u8*)p2 : (u8*)p;
-    int nData = p->nData;
-    if( pHash->eDetail==FTS5_DETAIL_NONE ){
-      assert( nData==p->iSzPoslist );
-      if( p->bDel ){
-        pPtr[nData++] = 0x00;
-        if( p->bContent ){
-          pPtr[nData++] = 0x00;
-        }
-      }
-    }else{
-      int nSz = (nData - p->iSzPoslist - 1);       /* Size in bytes */
-      int nPos = nSz*2 + p->bDel;                     /* Value of nPos field */
-
-      assert( p->bDel==0 || p->bDel==1 );
-      if( nPos<=127 ){
-        pPtr[p->iSzPoslist] = (u8)nPos;
-      }else{
-        int nByte = tdsqlite3Fts5GetVarintLen((u32)nPos);
-        memmove(&pPtr[p->iSzPoslist + nByte], &pPtr[p->iSzPoslist + 1], nSz);
-        tdsqlite3Fts5PutVarint(&pPtr[p->iSzPoslist], nPos);
-        nData += (nByte-1);
-      }
-    }
-
-    nRet = nData - p->nData;
-    if( p2==0 ){
-      p->iSzPoslist = 0;
-      p->bDel = 0;
-      p->bContent = 0;
-      p->nData = nData;
-    }
-  }
-  return nRet;
-}
-
-/*
-** Add an entry to the in-memory hash table. The key is the concatenation
-** of bByte and (pToken/nToken). The value is (iRowid/iCol/iPos).
-**
-**     (bByte || pToken) -> (iRowid,iCol,iPos)
-**
-** Or, if iCol is negative, then the value is a delete marker.
-*/
-static int tdsqlite3Fts5HashWrite(
-  Fts5Hash *pHash,
-  i64 iRowid,                     /* Rowid for this entry */
-  int iCol,                       /* Column token appears in (-ve -> delete) */
-  int iPos,                       /* Position of token within column */
-  char bByte,                     /* First byte of token */
-  const char *pToken, int nToken  /* Token to add or remove to or from index */
-){
-  unsigned int iHash;
-  Fts5HashEntry *p;
-  u8 *pPtr;
-  int nIncr = 0;                  /* Amount to increment (*pHash->pnByte) by */
-  int bNew;                       /* If non-delete entry should be written */
-  
-  bNew = (pHash->eDetail==FTS5_DETAIL_FULL);
-
-  /* Attempt to locate an existing hash entry */
-  iHash = fts5HashKey2(pHash->nSlot, (u8)bByte, (const u8*)pToken, nToken);
-  for(p=pHash->aSlot[iHash]; p; p=p->pHashNext){
-    char *zKey = fts5EntryKey(p);
-    if( zKey[0]==bByte 
-     && p->nKey==nToken
-     && memcmp(&zKey[1], pToken, nToken)==0 
-    ){
-      break;
-    }
-  }
-
-  /* If an existing hash entry cannot be found, create a new one. */
-  if( p==0 ){
-    /* Figure out how much space to allocate */
-    char *zKey;
-    tdsqlite3_int64 nByte = sizeof(Fts5HashEntry) + (nToken+1) + 1 + 64;
-    if( nByte<128 ) nByte = 128;
-
-    /* Grow the Fts5Hash.aSlot[] array if necessary. */
-    if( (pHash->nEntry*2)>=pHash->nSlot ){
-      int rc = fts5HashResize(pHash);
-      if( rc!=SQLITE_OK ) return rc;
-      iHash = fts5HashKey2(pHash->nSlot, (u8)bByte, (const u8*)pToken, nToken);
-    }
-
-    /* Allocate new Fts5HashEntry and add it to the hash table. */
-    p = (Fts5HashEntry*)tdsqlite3_malloc64(nByte);
-    if( !p ) return SQLITE_NOMEM;
-    memset(p, 0, sizeof(Fts5HashEntry));
-    p->nAlloc = (int)nByte;
-    zKey = fts5EntryKey(p);
-    zKey[0] = bByte;
-    memcpy(&zKey[1], pToken, nToken);
-    assert( iHash==fts5HashKey(pHash->nSlot, (u8*)zKey, nToken+1) );
-    p->nKey = nToken;
-    zKey[nToken+1] = '\0';
-    p->nData = nToken+1 + 1 + sizeof(Fts5HashEntry);
-    p->pHashNext = pHash->aSlot[iHash];
-    pHash->aSlot[iHash] = p;
-    pHash->nEntry++;
-
-    /* Add the first rowid field to the hash-entry */
-    p->nData += tdsqlite3Fts5PutVarint(&((u8*)p)[p->nData], iRowid);
-    p->iRowid = iRowid;
-
-    p->iSzPoslist = p->nData;
-    if( pHash->eDetail!=FTS5_DETAIL_NONE ){
-      p->nData += 1;
-      p->iCol = (pHash->eDetail==FTS5_DETAIL_FULL ? 0 : -1);
-    }
-
-    nIncr += p->nData;
-  }else{
-
-    /* Appending to an existing hash-entry. Check that there is enough 
-    ** space to append the largest possible new entry. Worst case scenario 
-    ** is:
-    **
-    **     + 9 bytes for a new rowid,
-    **     + 4 byte reserved for the "poslist size" varint.
-    **     + 1 byte for a "new column" byte,
-    **     + 3 bytes for a new column number (16-bit max) as a varint,
-    **     + 5 bytes for the new position offset (32-bit max).
-    */
-    if( (p->nAlloc - p->nData) < (9 + 4 + 1 + 3 + 5) ){
-      tdsqlite3_int64 nNew = p->nAlloc * 2;
-      Fts5HashEntry *pNew;
-      Fts5HashEntry **pp;
-      pNew = (Fts5HashEntry*)tdsqlite3_realloc64(p, nNew);
-      if( pNew==0 ) return SQLITE_NOMEM;
-      pNew->nAlloc = (int)nNew;
-      for(pp=&pHash->aSlot[iHash]; *pp!=p; pp=&(*pp)->pHashNext);
-      *pp = pNew;
-      p = pNew;
-    }
-    nIncr -= p->nData;
-  }
-  assert( (p->nAlloc - p->nData) >= (9 + 4 + 1 + 3 + 5) );
-
-  pPtr = (u8*)p;
-
-  /* If this is a new rowid, append the 4-byte size field for the previous
-  ** entry, and the new rowid for this entry.  */
-  if( iRowid!=p->iRowid ){
-    fts5HashAddPoslistSize(pHash, p, 0);
-    p->nData += tdsqlite3Fts5PutVarint(&pPtr[p->nData], iRowid - p->iRowid);
-    p->iRowid = iRowid;
-    bNew = 1;
-    p->iSzPoslist = p->nData;
-    if( pHash->eDetail!=FTS5_DETAIL_NONE ){
-      p->nData += 1;
-      p->iCol = (pHash->eDetail==FTS5_DETAIL_FULL ? 0 : -1);
-      p->iPos = 0;
-    }
-  }
-
-  if( iCol>=0 ){
-    if( pHash->eDetail==FTS5_DETAIL_NONE ){
-      p->bContent = 1;
-    }else{
-      /* Append a new column value, if necessary */
-      assert( iCol>=p->iCol );
-      if( iCol!=p->iCol ){
-        if( pHash->eDetail==FTS5_DETAIL_FULL ){
-          pPtr[p->nData++] = 0x01;
-          p->nData += tdsqlite3Fts5PutVarint(&pPtr[p->nData], iCol);
-          p->iCol = (i16)iCol;
-          p->iPos = 0;
-        }else{
-          bNew = 1;
-          p->iCol = (i16)(iPos = iCol);
-        }
-      }
-
-      /* Append the new position offset, if necessary */
-      if( bNew ){
-        p->nData += tdsqlite3Fts5PutVarint(&pPtr[p->nData], iPos - p->iPos + 2);
-        p->iPos = iPos;
-      }
-    }
-  }else{
-    /* This is a delete. Set the delete flag. */
-    p->bDel = 1;
-  }
-
-  nIncr += p->nData;
-  *pHash->pnByte += nIncr;
-  return SQLITE_OK;
-}
-
-
-/*
-** Arguments pLeft and pRight point to linked-lists of hash-entry objects,
-** each sorted in key order. This function merges the two lists into a
-** single list and returns a pointer to its first element.
-*/
-static Fts5HashEntry *fts5HashEntryMerge(
-  Fts5HashEntry *pLeft,
-  Fts5HashEntry *pRight
-){
-  Fts5HashEntry *p1 = pLeft;
-  Fts5HashEntry *p2 = pRight;
-  Fts5HashEntry *pRet = 0;
-  Fts5HashEntry **ppOut = &pRet;
-
-  while( p1 || p2 ){
-    if( p1==0 ){
-      *ppOut = p2;
-      p2 = 0;
-    }else if( p2==0 ){
-      *ppOut = p1;
-      p1 = 0;
-    }else{
-      int i = 0;
-      char *zKey1 = fts5EntryKey(p1);
-      char *zKey2 = fts5EntryKey(p2);
-      while( zKey1[i]==zKey2[i] ) i++;
-
-      if( ((u8)zKey1[i])>((u8)zKey2[i]) ){
-        /* p2 is smaller */
-        *ppOut = p2;
-        ppOut = &p2->pScanNext;
-        p2 = p2->pScanNext;
-      }else{
-        /* p1 is smaller */
-        *ppOut = p1;
-        ppOut = &p1->pScanNext;
-        p1 = p1->pScanNext;
-      }
-      *ppOut = 0;
-    }
-  }
-
-  return pRet;
-}
-
-/*
-** Extract all tokens from hash table iHash and link them into a list
-** in sorted order. The hash table is cleared before returning. It is
-** the responsibility of the caller to free the elements of the returned
-** list.
-*/
-static int fts5HashEntrySort(
-  Fts5Hash *pHash, 
-  const char *pTerm, int nTerm,   /* Query prefix, if any */
-  Fts5HashEntry **ppSorted
-){
-  const int nMergeSlot = 32;
-  Fts5HashEntry **ap;
-  Fts5HashEntry *pList;
-  int iSlot;
-  int i;
-
-  *ppSorted = 0;
-  ap = tdsqlite3_malloc64(sizeof(Fts5HashEntry*) * nMergeSlot);
-  if( !ap ) return SQLITE_NOMEM;
-  memset(ap, 0, sizeof(Fts5HashEntry*) * nMergeSlot);
-
-  for(iSlot=0; iSlot<pHash->nSlot; iSlot++){
-    Fts5HashEntry *pIter;
-    for(pIter=pHash->aSlot[iSlot]; pIter; pIter=pIter->pHashNext){
-      if( pTerm==0 
-       || (pIter->nKey+1>=nTerm && 0==memcmp(fts5EntryKey(pIter), pTerm, nTerm))
-      ){
-        Fts5HashEntry *pEntry = pIter;
-        pEntry->pScanNext = 0;
-        for(i=0; ap[i]; i++){
-          pEntry = fts5HashEntryMerge(pEntry, ap[i]);
-          ap[i] = 0;
-        }
-        ap[i] = pEntry;
-      }
-    }
-  }
-
-  pList = 0;
-  for(i=0; i<nMergeSlot; i++){
-    pList = fts5HashEntryMerge(pList, ap[i]);
-  }
-
-  pHash->nEntry = 0;
-  tdsqlite3_free(ap);
-  *ppSorted = pList;
-  return SQLITE_OK;
-}
-
-/*
-** Query the hash table for a doclist associated with term pTerm/nTerm.
-*/
-static int tdsqlite3Fts5HashQuery(
-  Fts5Hash *pHash,                /* Hash table to query */
-  int nPre,
-  const char *pTerm, int nTerm,   /* Query term */
-  void **ppOut,                   /* OUT: Pointer to new object */
-  int *pnDoclist                  /* OUT: Size of doclist in bytes */
-){
-  unsigned int iHash = fts5HashKey(pHash->nSlot, (const u8*)pTerm, nTerm);
-  char *zKey = 0;
-  Fts5HashEntry *p;
-
-  for(p=pHash->aSlot[iHash]; p; p=p->pHashNext){
-    zKey = fts5EntryKey(p);
-    assert( p->nKey+1==(int)strlen(zKey) );
-    if( nTerm==p->nKey+1 && memcmp(zKey, pTerm, nTerm)==0 ) break;
-  }
-
-  if( p ){
-    int nHashPre = sizeof(Fts5HashEntry) + nTerm + 1;
-    int nList = p->nData - nHashPre;
-    u8 *pRet = (u8*)(*ppOut = tdsqlite3_malloc64(nPre + nList + 10));
-    if( pRet ){
-      Fts5HashEntry *pFaux = (Fts5HashEntry*)&pRet[nPre-nHashPre];
-      memcpy(&pRet[nPre], &((u8*)p)[nHashPre], nList);
-      nList += fts5HashAddPoslistSize(pHash, p, pFaux);
-      *pnDoclist = nList;
-    }else{
-      *pnDoclist = 0;
-      return SQLITE_NOMEM;
-    }
-  }else{
-    *ppOut = 0;
-    *pnDoclist = 0;
-  }
-
-  return SQLITE_OK;
-}
-
-static int tdsqlite3Fts5HashScanInit(
-  Fts5Hash *p,                    /* Hash table to query */
-  const char *pTerm, int nTerm    /* Query prefix */
-){
-  return fts5HashEntrySort(p, pTerm, nTerm, &p->pScan);
-}
-
-static void tdsqlite3Fts5HashScanNext(Fts5Hash *p){
-  assert( !tdsqlite3Fts5HashScanEof(p) );
-  p->pScan = p->pScan->pScanNext;
-}
-
-static int tdsqlite3Fts5HashScanEof(Fts5Hash *p){
-  return (p->pScan==0);
-}
-
-static void tdsqlite3Fts5HashScanEntry(
-  Fts5Hash *pHash,
-  const char **pzTerm,            /* OUT: term (nul-terminated) */
-  const u8 **ppDoclist,           /* OUT: pointer to doclist */
-  int *pnDoclist                  /* OUT: size of doclist in bytes */
-){
-  Fts5HashEntry *p;
-  if( (p = pHash->pScan) ){
-    char *zKey = fts5EntryKey(p);
-    int nTerm = (int)strlen(zKey);
-    fts5HashAddPoslistSize(pHash, p, 0);
-    *pzTerm = zKey;
-    *ppDoclist = (const u8*)&zKey[nTerm+1];
-    *pnDoclist = p->nData - (sizeof(Fts5HashEntry) + nTerm + 1);
-  }else{
-    *pzTerm = 0;
-    *ppDoclist = 0;
-    *pnDoclist = 0;
-  }
-}
-
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** Low level access to the FTS index stored in the database file. The 
-** routines in this file file implement all read and write access to the
-** %_data table. Other parts of the system access this functionality via
-** the interface defined in fts5Int.h.
-*/
-
-
-/* #include "fts5Int.h" */
-
-/*
-** Overview:
-**
-** The %_data table contains all the FTS indexes for an FTS5 virtual table.
-** As well as the main term index, there may be up to 31 prefix indexes.
-** The format is similar to FTS3/4, except that:
-**
-**   * all segment b-tree leaf data is stored in fixed size page records 
-**     (e.g. 1000 bytes). A single doclist may span multiple pages. Care is 
-**     taken to ensure it is possible to iterate in either direction through 
-**     the entries in a doclist, or to seek to a specific entry within a 
-**     doclist, without loading it into memory.
-**
-**   * large doclists that span many pages have associated "doclist index"
-**     records that contain a copy of the first rowid on each page spanned by
-**     the doclist. This is used to speed up seek operations, and merges of
-**     large doclists with very small doclists.
-**
-**   * extra fields in the "structure record" record the state of ongoing
-**     incremental merge operations.
-**
-*/
-
-
-#define FTS5_OPT_WORK_UNIT  1000  /* Number of leaf pages per optimize step */
-#define FTS5_WORK_UNIT      64    /* Number of leaf pages in unit of work */
-
-#define FTS5_MIN_DLIDX_SIZE 4     /* Add dlidx if this many empty pages */
-
-#define FTS5_MAIN_PREFIX '0'
-
-#if FTS5_MAX_PREFIX_INDEXES > 31
-# error "FTS5_MAX_PREFIX_INDEXES is too large"
-#endif
-
-/*
-** Details:
-**
-** The %_data table managed by this module,
-**
-**     CREATE TABLE %_data(id INTEGER PRIMARY KEY, block BLOB);
-**
-** , contains the following 5 types of records. See the comments surrounding
-** the FTS5_*_ROWID macros below for a description of how %_data rowids are 
-** assigned to each fo them.
-**
-** 1. Structure Records:
-**
-**   The set of segments that make up an index - the index structure - are
-**   recorded in a single record within the %_data table. The record consists
-**   of a single 32-bit configuration cookie value followed by a list of 
-**   SQLite varints. If the FTS table features more than one index (because
-**   there are one or more prefix indexes), it is guaranteed that all share
-**   the same cookie value.
-**
-**   Immediately following the configuration cookie, the record begins with
-**   three varints:
-**
-**     + number of levels,
-**     + total number of segments on all levels,
-**     + value of write counter.
-**
-**   Then, for each level from 0 to nMax:
-**
-**     + number of input segments in ongoing merge.
-**     + total number of segments in level.
-**     + for each segment from oldest to newest:
-**         + segment id (always > 0)
-**         + first leaf page number (often 1, always greater than 0)
-**         + final leaf page number
-**
-** 2. The Averages Record:
-**
-**   A single record within the %_data table. The data is a list of varints.
-**   The first value is the number of rows in the index. Then, for each column
-**   from left to right, the total number of tokens in the column for all
-**   rows of the table.
-**
-** 3. Segment leaves:
-**
-**   TERM/DOCLIST FORMAT:
-**
-**     Most of each segment leaf is taken up by term/doclist data. The 
-**     general format of term/doclist, starting with the first term
-**     on the leaf page, is:
-**
-**         varint : size of first term
-**         blob:    first term data
-**         doclist: first doclist
-**         zero-or-more {
-**           varint:  number of bytes in common with previous term
-**           varint:  number of bytes of new term data (nNew)
-**           blob:    nNew bytes of new term data
-**           doclist: next doclist
-**         }
-**
-**     doclist format:
-**
-**         varint:  first rowid
-**         poslist: first poslist
-**         zero-or-more {
-**           varint:  rowid delta (always > 0)
-**           poslist: next poslist
-**         }
-**
-**     poslist format:
-**
-**         varint: size of poslist in bytes multiplied by 2, not including
-**                 this field. Plus 1 if this entry carries the "delete" flag.
-**         collist: collist for column 0
-**         zero-or-more {
-**           0x01 byte
-**           varint: column number (I)
-**           collist: collist for column I
-**         }
-**
-**     collist format:
-**
-**         varint: first offset + 2
-**         zero-or-more {
-**           varint: offset delta + 2
-**         }
-**
-**   PAGE FORMAT
-**
-**     Each leaf page begins with a 4-byte header containing 2 16-bit 
-**     unsigned integer fields in big-endian format. They are:
-**
-**       * The byte offset of the first rowid on the page, if it exists
-**         and occurs before the first term (otherwise 0).
-**
-**       * The byte offset of the start of the page footer. If the page
-**         footer is 0 bytes in size, then this field is the same as the
-**         size of the leaf page in bytes.
-**
-**     The page footer consists of a single varint for each term located
-**     on the page. Each varint is the byte offset of the current term
-**     within the page, delta-compressed against the previous value. In
-**     other words, the first varint in the footer is the byte offset of
-**     the first term, the second is the byte offset of the second less that
-**     of the first, and so on.
-**
-**     The term/doclist format described above is accurate if the entire
-**     term/doclist data fits on a single leaf page. If this is not the case,
-**     the format is changed in two ways:
-**
-**       + if the first rowid on a page occurs before the first term, it
-**         is stored as a literal value:
-**
-**             varint:  first rowid
-**
-**       + the first term on each page is stored in the same way as the
-**         very first term of the segment:
-**
-**             varint : size of first term
-**             blob:    first term data
-**
-** 5. Segment doclist indexes:
-**
-**   Doclist indexes are themselves b-trees, however they usually consist of
-**   a single leaf record only. The format of each doclist index leaf page 
-**   is:
-**
-**     * Flags byte. Bits are:
-**         0x01: Clear if leaf is also the root page, otherwise set.
-**
-**     * Page number of fts index leaf page. As a varint.
-**
-**     * First rowid on page indicated by previous field. As a varint.
-**
-**     * A list of varints, one for each subsequent termless page. A 
-**       positive delta if the termless page contains at least one rowid, 
-**       or an 0x00 byte otherwise.
-**
-**   Internal doclist index nodes are:
-**
-**     * Flags byte. Bits are:
-**         0x01: Clear for root page, otherwise set.
-**
-**     * Page number of first child page. As a varint.
-**
-**     * Copy of first rowid on page indicated by previous field. As a varint.
-**
-**     * A list of delta-encoded varints - the first rowid on each subsequent
-**       child page. 
-**
-*/
-
-/*
-** Rowids for the averages and structure records in the %_data table.
-*/
-#define FTS5_AVERAGES_ROWID     1    /* Rowid used for the averages record */
-#define FTS5_STRUCTURE_ROWID   10    /* The structure record */
-
-/*
-** Macros determining the rowids used by segment leaves and dlidx leaves
-** and nodes. All nodes and leaves are stored in the %_data table with large
-** positive rowids.
-**
-** Each segment has a unique non-zero 16-bit id.
-**
-** The rowid for each segment leaf is found by passing the segment id and 
-** the leaf page number to the FTS5_SEGMENT_ROWID macro. Leaves are numbered
-** sequentially starting from 1.
-*/
-#define FTS5_DATA_ID_B     16     /* Max seg id number 65535 */
-#define FTS5_DATA_DLI_B     1     /* Doclist-index flag (1 bit) */
-#define FTS5_DATA_HEIGHT_B  5     /* Max dlidx tree height of 32 */
-#define FTS5_DATA_PAGE_B   31     /* Max page number of 2147483648 */
-
-#define fts5_dri(segid, dlidx, height, pgno) (                                 \
- ((i64)(segid)  << (FTS5_DATA_PAGE_B+FTS5_DATA_HEIGHT_B+FTS5_DATA_DLI_B)) +    \
- ((i64)(dlidx)  << (FTS5_DATA_PAGE_B + FTS5_DATA_HEIGHT_B)) +                  \
- ((i64)(height) << (FTS5_DATA_PAGE_B)) +                                       \
- ((i64)(pgno))                                                                 \
-)
-
-#define FTS5_SEGMENT_ROWID(segid, pgno)       fts5_dri(segid, 0, 0, pgno)
-#define FTS5_DLIDX_ROWID(segid, height, pgno) fts5_dri(segid, 1, height, pgno)
-
-#ifdef SQLITE_DEBUG
-static int tdsqlite3Fts5Corrupt() { return SQLITE_CORRUPT_VTAB; }
-#endif
-
-
-/*
-** Each time a blob is read from the %_data table, it is padded with this
-** many zero bytes. This makes it easier to decode the various record formats
-** without overreading if the records are corrupt.
-*/
-#define FTS5_DATA_ZERO_PADDING 8
-#define FTS5_DATA_PADDING 20
-
-typedef struct Fts5Data Fts5Data;
-typedef struct Fts5DlidxIter Fts5DlidxIter;
-typedef struct Fts5DlidxLvl Fts5DlidxLvl;
-typedef struct Fts5DlidxWriter Fts5DlidxWriter;
-typedef struct Fts5Iter Fts5Iter;
-typedef struct Fts5PageWriter Fts5PageWriter;
-typedef struct Fts5SegIter Fts5SegIter;
-typedef struct Fts5DoclistIter Fts5DoclistIter;
-typedef struct Fts5SegWriter Fts5SegWriter;
-typedef struct Fts5Structure Fts5Structure;
-typedef struct Fts5StructureLevel Fts5StructureLevel;
-typedef struct Fts5StructureSegment Fts5StructureSegment;
-
-struct Fts5Data {
-  u8 *p;                          /* Pointer to buffer containing record */
-  int nn;                         /* Size of record in bytes */
-  int szLeaf;                     /* Size of leaf without page-index */
-};
-
-/*
-** One object per %_data table.
-*/
-struct Fts5Index {
-  Fts5Config *pConfig;            /* Virtual table configuration */
-  char *zDataTbl;                 /* Name of %_data table */
-  int nWorkUnit;                  /* Leaf pages in a "unit" of work */
-
-  /*
-  ** Variables related to the accumulation of tokens and doclists within the
-  ** in-memory hash tables before they are flushed to disk.
-  */
-  Fts5Hash *pHash;                /* Hash table for in-memory data */
-  int nPendingData;               /* Current bytes of pending data */
-  i64 iWriteRowid;                /* Rowid for current doc being written */
-  int bDelete;                    /* Current write is a delete */
-
-  /* Error state. */
-  int rc;                         /* Current error code */
-
-  /* State used by the fts5DataXXX() functions. */
-  tdsqlite3_blob *pReader;          /* RO incr-blob open on %_data table */
-  tdsqlite3_stmt *pWriter;          /* "INSERT ... %_data VALUES(?,?)" */
-  tdsqlite3_stmt *pDeleter;         /* "DELETE FROM %_data ... id>=? AND id<=?" */
-  tdsqlite3_stmt *pIdxWriter;       /* "INSERT ... %_idx VALUES(?,?,?,?)" */
-  tdsqlite3_stmt *pIdxDeleter;      /* "DELETE FROM %_idx WHERE segid=? */
-  tdsqlite3_stmt *pIdxSelect;
-  int nRead;                      /* Total number of blocks read */
-
-  tdsqlite3_stmt *pDataVersion;
-  i64 iStructVersion;             /* data_version when pStruct read */
-  Fts5Structure *pStruct;         /* Current db structure (or NULL) */
-};
-
-struct Fts5DoclistIter {
-  u8 *aEof;                       /* Pointer to 1 byte past end of doclist */
-
-  /* Output variables. aPoslist==0 at EOF */
-  i64 iRowid;
-  u8 *aPoslist;
-  int nPoslist;
-  int nSize;
-};
-
-/*
-** The contents of the "structure" record for each index are represented
-** using an Fts5Structure record in memory. Which uses instances of the 
-** other Fts5StructureXXX types as components.
-*/
-struct Fts5StructureSegment {
-  int iSegid;                     /* Segment id */
-  int pgnoFirst;                  /* First leaf page number in segment */
-  int pgnoLast;                   /* Last leaf page number in segment */
-};
-struct Fts5StructureLevel {
-  int nMerge;                     /* Number of segments in incr-merge */
-  int nSeg;                       /* Total number of segments on level */
-  Fts5StructureSegment *aSeg;     /* Array of segments. aSeg[0] is oldest. */
-};
-struct Fts5Structure {
-  int nRef;                       /* Object reference count */
-  u64 nWriteCounter;              /* Total leaves written to level 0 */
-  int nSegment;                   /* Total segments in this structure */
-  int nLevel;                     /* Number of levels in this index */
-  Fts5StructureLevel aLevel[1];   /* Array of nLevel level objects */
-};
-
-/*
-** An object of type Fts5SegWriter is used to write to segments.
-*/
-struct Fts5PageWriter {
-  int pgno;                       /* Page number for this page */
-  int iPrevPgidx;                 /* Previous value written into pgidx */
-  Fts5Buffer buf;                 /* Buffer containing leaf data */
-  Fts5Buffer pgidx;               /* Buffer containing page-index */
-  Fts5Buffer term;                /* Buffer containing previous term on page */
-};
-struct Fts5DlidxWriter {
-  int pgno;                       /* Page number for this page */
-  int bPrevValid;                 /* True if iPrev is valid */
-  i64 iPrev;                      /* Previous rowid value written to page */
-  Fts5Buffer buf;                 /* Buffer containing page data */
-};
-struct Fts5SegWriter {
-  int iSegid;                     /* Segid to write to */
-  Fts5PageWriter writer;          /* PageWriter object */
-  i64 iPrevRowid;                 /* Previous rowid written to current leaf */
-  u8 bFirstRowidInDoclist;        /* True if next rowid is first in doclist */
-  u8 bFirstRowidInPage;           /* True if next rowid is first in page */
-  /* TODO1: Can use (writer.pgidx.n==0) instead of bFirstTermInPage */
-  u8 bFirstTermInPage;            /* True if next term will be first in leaf */
-  int nLeafWritten;               /* Number of leaf pages written */
-  int nEmpty;                     /* Number of contiguous term-less nodes */
-
-  int nDlidx;                     /* Allocated size of aDlidx[] array */
-  Fts5DlidxWriter *aDlidx;        /* Array of Fts5DlidxWriter objects */
-
-  /* Values to insert into the %_idx table */
-  Fts5Buffer btterm;              /* Next term to insert into %_idx table */
-  int iBtPage;                    /* Page number corresponding to btterm */
-};
-
-typedef struct Fts5CResult Fts5CResult;
-struct Fts5CResult {
-  u16 iFirst;                     /* aSeg[] index of firstest iterator */
-  u8 bTermEq;                     /* True if the terms are equal */
-};
-
-/*
-** Object for iterating through a single segment, visiting each term/rowid
-** pair in the segment.
-**
-** pSeg:
-**   The segment to iterate through.
-**
-** iLeafPgno:
-**   Current leaf page number within segment.
-**
-** iLeafOffset:
-**   Byte offset within the current leaf that is the first byte of the 
-**   position list data (one byte passed the position-list size field).
-**   rowid field of the current entry. Usually this is the size field of the
-**   position list data. The exception is if the rowid for the current entry 
-**   is the last thing on the leaf page.
-**
-** pLeaf:
-**   Buffer containing current leaf page data. Set to NULL at EOF.
-**
-** iTermLeafPgno, iTermLeafOffset:
-**   Leaf page number containing the last term read from the segment. And
-**   the offset immediately following the term data.
-**
-** flags:
-**   Mask of FTS5_SEGITER_XXX values. Interpreted as follows:
-**
-**   FTS5_SEGITER_ONETERM:
-**     If set, set the iterator to point to EOF after the current doclist 
-**     has been exhausted. Do not proceed to the next term in the segment.
-**
-**   FTS5_SEGITER_REVERSE:
-**     This flag is only ever set if FTS5_SEGITER_ONETERM is also set. If
-**     it is set, iterate through rowid in descending order instead of the
-**     default ascending order.
-**
-** iRowidOffset/nRowidOffset/aRowidOffset:
-**     These are used if the FTS5_SEGITER_REVERSE flag is set.
-**
-**     For each rowid on the page corresponding to the current term, the
-**     corresponding aRowidOffset[] entry is set to the byte offset of the
-**     start of the "position-list-size" field within the page.
-**
-** iTermIdx:
-**     Index of current term on iTermLeafPgno.
-*/
-struct Fts5SegIter {
-  Fts5StructureSegment *pSeg;     /* Segment to iterate through */
-  int flags;                      /* Mask of configuration flags */
-  int iLeafPgno;                  /* Current leaf page number */
-  Fts5Data *pLeaf;                /* Current leaf data */
-  Fts5Data *pNextLeaf;            /* Leaf page (iLeafPgno+1) */
-  int iLeafOffset;                /* Byte offset within current leaf */
-
-  /* Next method */
-  void (*xNext)(Fts5Index*, Fts5SegIter*, int*);
-
-  /* The page and offset from which the current term was read. The offset 
-  ** is the offset of the first rowid in the current doclist.  */
-  int iTermLeafPgno;
-  int iTermLeafOffset;
-
-  int iPgidxOff;                  /* Next offset in pgidx */
-  int iEndofDoclist;
-
-  /* The following are only used if the FTS5_SEGITER_REVERSE flag is set. */
-  int iRowidOffset;               /* Current entry in aRowidOffset[] */
-  int nRowidOffset;               /* Allocated size of aRowidOffset[] array */
-  int *aRowidOffset;              /* Array of offset to rowid fields */
-
-  Fts5DlidxIter *pDlidx;          /* If there is a doclist-index */
-
-  /* Variables populated based on current entry. */
-  Fts5Buffer term;                /* Current term */
-  i64 iRowid;                     /* Current rowid */
-  int nPos;                       /* Number of bytes in current position list */
-  u8 bDel;                        /* True if the delete flag is set */
-};
-
-/*
-** Argument is a pointer to an Fts5Data structure that contains a 
-** leaf page.
-*/
-#define ASSERT_SZLEAF_OK(x) assert( \
-    (x)->szLeaf==(x)->nn || (x)->szLeaf==fts5GetU16(&(x)->p[2]) \
-)
-
-#define FTS5_SEGITER_ONETERM 0x01
-#define FTS5_SEGITER_REVERSE 0x02
-
-/* 
-** Argument is a pointer to an Fts5Data structure that contains a leaf
-** page. This macro evaluates to true if the leaf contains no terms, or
-** false if it contains at least one term.
-*/
-#define fts5LeafIsTermless(x) ((x)->szLeaf >= (x)->nn)
-
-#define fts5LeafTermOff(x, i) (fts5GetU16(&(x)->p[(x)->szLeaf + (i)*2]))
-
-#define fts5LeafFirstRowidOff(x) (fts5GetU16((x)->p))
-
-/*
-** Object for iterating through the merged results of one or more segments,
-** visiting each term/rowid pair in the merged data.
-**
-** nSeg is always a power of two greater than or equal to the number of
-** segments that this object is merging data from. Both the aSeg[] and
-** aFirst[] arrays are sized at nSeg entries. The aSeg[] array is padded
-** with zeroed objects - these are handled as if they were iterators opened
-** on empty segments.
-**
-** The results of comparing segments aSeg[N] and aSeg[N+1], where N is an
-** even number, is stored in aFirst[(nSeg+N)/2]. The "result" of the 
-** comparison in this context is the index of the iterator that currently
-** points to the smaller term/rowid combination. Iterators at EOF are
-** considered to be greater than all other iterators.
-**
-** aFirst[1] contains the index in aSeg[] of the iterator that points to
-** the smallest key overall. aFirst[0] is unused. 
-**
-** poslist:
-**   Used by tdsqlite3Fts5IterPoslist() when the poslist needs to be buffered.
-**   There is no way to tell if this is populated or not.
-*/
-struct Fts5Iter {
-  Fts5IndexIter base;             /* Base class containing output vars */
-
-  Fts5Index *pIndex;              /* Index that owns this iterator */
-  Fts5Buffer poslist;             /* Buffer containing current poslist */
-  Fts5Colset *pColset;            /* Restrict matches to these columns */
-
-  /* Invoked to set output variables. */
-  void (*xSetOutputs)(Fts5Iter*, Fts5SegIter*);
-
-  int nSeg;                       /* Size of aSeg[] array */
-  int bRev;                       /* True to iterate in reverse order */
-  u8 bSkipEmpty;                  /* True to skip deleted entries */
-
-  i64 iSwitchRowid;               /* Firstest rowid of other than aFirst[1] */
-  Fts5CResult *aFirst;            /* Current merge state (see above) */
-  Fts5SegIter aSeg[1];            /* Array of segment iterators */
-};
-
-
-/*
-** An instance of the following type is used to iterate through the contents
-** of a doclist-index record.
-**
-** pData:
-**   Record containing the doclist-index data.
-**
-** bEof:
-**   Set to true once iterator has reached EOF.
-**
-** iOff:
-**   Set to the current offset within record pData.
-*/
-struct Fts5DlidxLvl {
-  Fts5Data *pData;              /* Data for current page of this level */
-  int iOff;                     /* Current offset into pData */
-  int bEof;                     /* At EOF already */
-  int iFirstOff;                /* Used by reverse iterators */
-
-  /* Output variables */
-  int iLeafPgno;                /* Page number of current leaf page */
-  i64 iRowid;                   /* First rowid on leaf iLeafPgno */
-};
-struct Fts5DlidxIter {
-  int nLvl;
-  int iSegid;
-  Fts5DlidxLvl aLvl[1];
-};
-
-static void fts5PutU16(u8 *aOut, u16 iVal){
-  aOut[0] = (iVal>>8);
-  aOut[1] = (iVal&0xFF);
-}
-
-static u16 fts5GetU16(const u8 *aIn){
-  return ((u16)aIn[0] << 8) + aIn[1];
-} 
-
-/*
-** Allocate and return a buffer at least nByte bytes in size.
-**
-** If an OOM error is encountered, return NULL and set the error code in
-** the Fts5Index handle passed as the first argument.
-*/
-static void *fts5IdxMalloc(Fts5Index *p, tdsqlite3_int64 nByte){
-  return tdsqlite3Fts5MallocZero(&p->rc, nByte);
-}
-
-/*
-** Compare the contents of the pLeft buffer with the pRight/nRight blob.
-**
-** Return -ve if pLeft is smaller than pRight, 0 if they are equal or
-** +ve if pRight is smaller than pLeft. In other words:
-**
-**     res = *pLeft - *pRight
-*/
-#ifdef SQLITE_DEBUG
-static int fts5BufferCompareBlob(
-  Fts5Buffer *pLeft,              /* Left hand side of comparison */
-  const u8 *pRight, int nRight    /* Right hand side of comparison */
-){
-  int nCmp = MIN(pLeft->n, nRight);
-  int res = memcmp(pLeft->p, pRight, nCmp);
-  return (res==0 ? (pLeft->n - nRight) : res);
-}
-#endif
-
-/*
-** Compare the contents of the two buffers using memcmp(). If one buffer
-** is a prefix of the other, it is considered the lesser.
-**
-** Return -ve if pLeft is smaller than pRight, 0 if they are equal or
-** +ve if pRight is smaller than pLeft. In other words:
-**
-**     res = *pLeft - *pRight
-*/
-static int fts5BufferCompare(Fts5Buffer *pLeft, Fts5Buffer *pRight){
-  int nCmp = MIN(pLeft->n, pRight->n);
-  int res = fts5Memcmp(pLeft->p, pRight->p, nCmp);
-  return (res==0 ? (pLeft->n - pRight->n) : res);
-}
-
-static int fts5LeafFirstTermOff(Fts5Data *pLeaf){
-  int ret;
-  fts5GetVarint32(&pLeaf->p[pLeaf->szLeaf], ret);
-  return ret;
-}
-
-/*
-** Close the read-only blob handle, if it is open.
-*/
-static void tdsqlite3Fts5IndexCloseReader(Fts5Index *p){
-  if( p->pReader ){
-    tdsqlite3_blob *pReader = p->pReader;
-    p->pReader = 0;
-    tdsqlite3_blob_close(pReader);
-  }
-}
-
-/*
-** Retrieve a record from the %_data table.
-**
-** If an error occurs, NULL is returned and an error left in the 
-** Fts5Index object.
-*/
-static Fts5Data *fts5DataRead(Fts5Index *p, i64 iRowid){
-  Fts5Data *pRet = 0;
-  if( p->rc==SQLITE_OK ){
-    int rc = SQLITE_OK;
-
-    if( p->pReader ){
-      /* This call may return SQLITE_ABORT if there has been a savepoint
-      ** rollback since it was last used. In this case a new blob handle
-      ** is required.  */
-      tdsqlite3_blob *pBlob = p->pReader;
-      p->pReader = 0;
-      rc = tdsqlite3_blob_reopen(pBlob, iRowid);
-      assert( p->pReader==0 );
-      p->pReader = pBlob;
-      if( rc!=SQLITE_OK ){
-        tdsqlite3Fts5IndexCloseReader(p);
-      }
-      if( rc==SQLITE_ABORT ) rc = SQLITE_OK;
-    }
-
-    /* If the blob handle is not open at this point, open it and seek 
-    ** to the requested entry.  */
-    if( p->pReader==0 && rc==SQLITE_OK ){
-      Fts5Config *pConfig = p->pConfig;
-      rc = tdsqlite3_blob_open(pConfig->db, 
-          pConfig->zDb, p->zDataTbl, "block", iRowid, 0, &p->pReader
-      );
-    }
-
-    /* If either of the tdsqlite3_blob_open() or tdsqlite3_blob_reopen() calls
-    ** above returned SQLITE_ERROR, return SQLITE_CORRUPT_VTAB instead.
-    ** All the reasons those functions might return SQLITE_ERROR - missing
-    ** table, missing row, non-blob/text in block column - indicate 
-    ** backing store corruption.  */
-    if( rc==SQLITE_ERROR ) rc = FTS5_CORRUPT;
-
-    if( rc==SQLITE_OK ){
-      u8 *aOut = 0;               /* Read blob data into this buffer */
-      int nByte = tdsqlite3_blob_bytes(p->pReader);
-      tdsqlite3_int64 nAlloc = sizeof(Fts5Data) + nByte + FTS5_DATA_PADDING;
-      pRet = (Fts5Data*)tdsqlite3_malloc64(nAlloc);
-      if( pRet ){
-        pRet->nn = nByte;
-        aOut = pRet->p = (u8*)&pRet[1];
-      }else{
-        rc = SQLITE_NOMEM;
-      }
-
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3_blob_read(p->pReader, aOut, nByte, 0);
-      }
-      if( rc!=SQLITE_OK ){
-        tdsqlite3_free(pRet);
-        pRet = 0;
-      }else{
-        /* TODO1: Fix this */
-        pRet->p[nByte] = 0x00;
-        pRet->p[nByte+1] = 0x00;
-        pRet->szLeaf = fts5GetU16(&pRet->p[2]);
-      }
-    }
-    p->rc = rc;
-    p->nRead++;
-  }
-
-  assert( (pRet==0)==(p->rc!=SQLITE_OK) );
-  return pRet;
-}
-
-/*
-** Release a reference to data record returned by an earlier call to
-** fts5DataRead().
-*/
-static void fts5DataRelease(Fts5Data *pData){
-  tdsqlite3_free(pData);
-}
-
-static Fts5Data *fts5LeafRead(Fts5Index *p, i64 iRowid){
-  Fts5Data *pRet = fts5DataRead(p, iRowid);
-  if( pRet ){
-    if( pRet->nn<4 || pRet->szLeaf>pRet->nn ){
-      p->rc = FTS5_CORRUPT;
-      fts5DataRelease(pRet);
-      pRet = 0;
-    }
-  }
-  return pRet;
-}
-
-static int fts5IndexPrepareStmt(
-  Fts5Index *p,
-  tdsqlite3_stmt **ppStmt,
-  char *zSql
-){
-  if( p->rc==SQLITE_OK ){
-    if( zSql ){
-      p->rc = tdsqlite3_prepare_v3(p->pConfig->db, zSql, -1,
-          SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_NO_VTAB,
-          ppStmt, 0);
-    }else{
-      p->rc = SQLITE_NOMEM;
-    }
-  }
-  tdsqlite3_free(zSql);
-  return p->rc;
-}
-
-
-/*
-** INSERT OR REPLACE a record into the %_data table.
-*/
-static void fts5DataWrite(Fts5Index *p, i64 iRowid, const u8 *pData, int nData){
-  if( p->rc!=SQLITE_OK ) return;
-
-  if( p->pWriter==0 ){
-    Fts5Config *pConfig = p->pConfig;
-    fts5IndexPrepareStmt(p, &p->pWriter, tdsqlite3_mprintf(
-          "REPLACE INTO '%q'.'%q_data'(id, block) VALUES(?,?)", 
-          pConfig->zDb, pConfig->zName
-    ));
-    if( p->rc ) return;
-  }
-
-  tdsqlite3_bind_int64(p->pWriter, 1, iRowid);
-  tdsqlite3_bind_blob(p->pWriter, 2, pData, nData, SQLITE_STATIC);
-  tdsqlite3_step(p->pWriter);
-  p->rc = tdsqlite3_reset(p->pWriter);
-  tdsqlite3_bind_null(p->pWriter, 2);
-}
-
-/*
-** Execute the following SQL:
-**
-**     DELETE FROM %_data WHERE id BETWEEN $iFirst AND $iLast
-*/
-static void fts5DataDelete(Fts5Index *p, i64 iFirst, i64 iLast){
-  if( p->rc!=SQLITE_OK ) return;
-
-  if( p->pDeleter==0 ){
-    Fts5Config *pConfig = p->pConfig;
-    char *zSql = tdsqlite3_mprintf(
-        "DELETE FROM '%q'.'%q_data' WHERE id>=? AND id<=?", 
-          pConfig->zDb, pConfig->zName
-    );
-    if( fts5IndexPrepareStmt(p, &p->pDeleter, zSql) ) return;
-  }
-
-  tdsqlite3_bind_int64(p->pDeleter, 1, iFirst);
-  tdsqlite3_bind_int64(p->pDeleter, 2, iLast);
-  tdsqlite3_step(p->pDeleter);
-  p->rc = tdsqlite3_reset(p->pDeleter);
-}
-
-/*
-** Remove all records associated with segment iSegid.
-*/
-static void fts5DataRemoveSegment(Fts5Index *p, int iSegid){
-  i64 iFirst = FTS5_SEGMENT_ROWID(iSegid, 0);
-  i64 iLast = FTS5_SEGMENT_ROWID(iSegid+1, 0)-1;
-  fts5DataDelete(p, iFirst, iLast);
-  if( p->pIdxDeleter==0 ){
-    Fts5Config *pConfig = p->pConfig;
-    fts5IndexPrepareStmt(p, &p->pIdxDeleter, tdsqlite3_mprintf(
-          "DELETE FROM '%q'.'%q_idx' WHERE segid=?",
-          pConfig->zDb, pConfig->zName
-    ));
-  }
-  if( p->rc==SQLITE_OK ){
-    tdsqlite3_bind_int(p->pIdxDeleter, 1, iSegid);
-    tdsqlite3_step(p->pIdxDeleter);
-    p->rc = tdsqlite3_reset(p->pIdxDeleter);
-  }
-}
-
-/*
-** Release a reference to an Fts5Structure object returned by an earlier 
-** call to fts5StructureRead() or fts5StructureDecode().
-*/
-static void fts5StructureRelease(Fts5Structure *pStruct){
-  if( pStruct && 0>=(--pStruct->nRef) ){
-    int i;
-    assert( pStruct->nRef==0 );
-    for(i=0; i<pStruct->nLevel; i++){
-      tdsqlite3_free(pStruct->aLevel[i].aSeg);
-    }
-    tdsqlite3_free(pStruct);
-  }
-}
-
-static void fts5StructureRef(Fts5Structure *pStruct){
-  pStruct->nRef++;
-}
-
-/*
-** Deserialize and return the structure record currently stored in serialized
-** form within buffer pData/nData.
-**
-** The Fts5Structure.aLevel[] and each Fts5StructureLevel.aSeg[] array
-** are over-allocated by one slot. This allows the structure contents
-** to be more easily edited.
-**
-** If an error occurs, *ppOut is set to NULL and an SQLite error code
-** returned. Otherwise, *ppOut is set to point to the new object and
-** SQLITE_OK returned.
-*/
-static int fts5StructureDecode(
-  const u8 *pData,                /* Buffer containing serialized structure */
-  int nData,                      /* Size of buffer pData in bytes */
-  int *piCookie,                  /* Configuration cookie value */
-  Fts5Structure **ppOut           /* OUT: Deserialized object */
-){
-  int rc = SQLITE_OK;
-  int i = 0;
-  int iLvl;
-  int nLevel = 0;
-  int nSegment = 0;
-  tdsqlite3_int64 nByte;            /* Bytes of space to allocate at pRet */
-  Fts5Structure *pRet = 0;        /* Structure object to return */
-
-  /* Grab the cookie value */
-  if( piCookie ) *piCookie = tdsqlite3Fts5Get32(pData);
-  i = 4;
-
-  /* Read the total number of levels and segments from the start of the
-  ** structure record.  */
-  i += fts5GetVarint32(&pData[i], nLevel);
-  i += fts5GetVarint32(&pData[i], nSegment);
-  if( nLevel>FTS5_MAX_SEGMENT   || nLevel<0
-   || nSegment>FTS5_MAX_SEGMENT || nSegment<0
-  ){
-    return FTS5_CORRUPT;
-  }
-  nByte = (
-      sizeof(Fts5Structure) +                    /* Main structure */
-      sizeof(Fts5StructureLevel) * (nLevel-1)    /* aLevel[] array */
-  );
-  pRet = (Fts5Structure*)tdsqlite3Fts5MallocZero(&rc, nByte);
-
-  if( pRet ){
-    pRet->nRef = 1;
-    pRet->nLevel = nLevel;
-    pRet->nSegment = nSegment;
-    i += tdsqlite3Fts5GetVarint(&pData[i], &pRet->nWriteCounter);
-
-    for(iLvl=0; rc==SQLITE_OK && iLvl<nLevel; iLvl++){
-      Fts5StructureLevel *pLvl = &pRet->aLevel[iLvl];
-      int nTotal = 0;
-      int iSeg;
-
-      if( i>=nData ){
-        rc = FTS5_CORRUPT;
-      }else{
-        i += fts5GetVarint32(&pData[i], pLvl->nMerge);
-        i += fts5GetVarint32(&pData[i], nTotal);
-        if( nTotal<pLvl->nMerge ) rc = FTS5_CORRUPT;
-        pLvl->aSeg = (Fts5StructureSegment*)tdsqlite3Fts5MallocZero(&rc, 
-            nTotal * sizeof(Fts5StructureSegment)
-        );
-        nSegment -= nTotal;
-      }
-
-      if( rc==SQLITE_OK ){
-        pLvl->nSeg = nTotal;
-        for(iSeg=0; iSeg<nTotal; iSeg++){
-          Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg];
-          if( i>=nData ){
-            rc = FTS5_CORRUPT;
-            break;
-          }
-          i += fts5GetVarint32(&pData[i], pSeg->iSegid);
-          i += fts5GetVarint32(&pData[i], pSeg->pgnoFirst);
-          i += fts5GetVarint32(&pData[i], pSeg->pgnoLast);
-          if( pSeg->pgnoLast<pSeg->pgnoFirst ){
-            rc = FTS5_CORRUPT;
-            break;
-          }
-        }
-        if( iLvl>0 && pLvl[-1].nMerge && nTotal==0 ) rc = FTS5_CORRUPT;
-        if( iLvl==nLevel-1 && pLvl->nMerge ) rc = FTS5_CORRUPT;
-      }
-    }
-    if( nSegment!=0 && rc==SQLITE_OK ) rc = FTS5_CORRUPT;
-
-    if( rc!=SQLITE_OK ){
-      fts5StructureRelease(pRet);
-      pRet = 0;
-    }
-  }
-
-  *ppOut = pRet;
-  return rc;
-}
-
-/*
-**
-*/
-static void fts5StructureAddLevel(int *pRc, Fts5Structure **ppStruct){
-  if( *pRc==SQLITE_OK ){
-    Fts5Structure *pStruct = *ppStruct;
-    int nLevel = pStruct->nLevel;
-    tdsqlite3_int64 nByte = (
-        sizeof(Fts5Structure) +                  /* Main structure */
-        sizeof(Fts5StructureLevel) * (nLevel+1)  /* aLevel[] array */
-    );
-
-    pStruct = tdsqlite3_realloc64(pStruct, nByte);
-    if( pStruct ){
-      memset(&pStruct->aLevel[nLevel], 0, sizeof(Fts5StructureLevel));
-      pStruct->nLevel++;
-      *ppStruct = pStruct;
-    }else{
-      *pRc = SQLITE_NOMEM;
-    }
-  }
-}
-
-/*
-** Extend level iLvl so that there is room for at least nExtra more
-** segments.
-*/
-static void fts5StructureExtendLevel(
-  int *pRc, 
-  Fts5Structure *pStruct, 
-  int iLvl, 
-  int nExtra, 
-  int bInsert
-){
-  if( *pRc==SQLITE_OK ){
-    Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl];
-    Fts5StructureSegment *aNew;
-    tdsqlite3_int64 nByte;
-
-    nByte = (pLvl->nSeg + nExtra) * sizeof(Fts5StructureSegment);
-    aNew = tdsqlite3_realloc64(pLvl->aSeg, nByte);
-    if( aNew ){
-      if( bInsert==0 ){
-        memset(&aNew[pLvl->nSeg], 0, sizeof(Fts5StructureSegment) * nExtra);
-      }else{
-        int nMove = pLvl->nSeg * sizeof(Fts5StructureSegment);
-        memmove(&aNew[nExtra], aNew, nMove);
-        memset(aNew, 0, sizeof(Fts5StructureSegment) * nExtra);
-      }
-      pLvl->aSeg = aNew;
-    }else{
-      *pRc = SQLITE_NOMEM;
-    }
-  }
-}
-
-static Fts5Structure *fts5StructureReadUncached(Fts5Index *p){
-  Fts5Structure *pRet = 0;
-  Fts5Config *pConfig = p->pConfig;
-  int iCookie;                    /* Configuration cookie */
-  Fts5Data *pData;
-
-  pData = fts5DataRead(p, FTS5_STRUCTURE_ROWID);
-  if( p->rc==SQLITE_OK ){
-    /* TODO: Do we need this if the leaf-index is appended? Probably... */
-    memset(&pData->p[pData->nn], 0, FTS5_DATA_PADDING);
-    p->rc = fts5StructureDecode(pData->p, pData->nn, &iCookie, &pRet);
-    if( p->rc==SQLITE_OK && (pConfig->pgsz==0 || pConfig->iCookie!=iCookie) ){
-      p->rc = tdsqlite3Fts5ConfigLoad(pConfig, iCookie);
-    }
-    fts5DataRelease(pData);
-    if( p->rc!=SQLITE_OK ){
-      fts5StructureRelease(pRet);
-      pRet = 0;
-    }
-  }
-
-  return pRet;
-}
-
-static i64 fts5IndexDataVersion(Fts5Index *p){
-  i64 iVersion = 0;
-
-  if( p->rc==SQLITE_OK ){
-    if( p->pDataVersion==0 ){
-      p->rc = fts5IndexPrepareStmt(p, &p->pDataVersion, 
-          tdsqlite3_mprintf("PRAGMA %Q.data_version", p->pConfig->zDb)
-          );
-      if( p->rc ) return 0;
-    }
-
-    if( SQLITE_ROW==tdsqlite3_step(p->pDataVersion) ){
-      iVersion = tdsqlite3_column_int64(p->pDataVersion, 0);
-    }
-    p->rc = tdsqlite3_reset(p->pDataVersion);
-  }
-
-  return iVersion;
-}
-
-/*
-** Read, deserialize and return the structure record.
-**
-** The Fts5Structure.aLevel[] and each Fts5StructureLevel.aSeg[] array
-** are over-allocated as described for function fts5StructureDecode() 
-** above.
-**
-** If an error occurs, NULL is returned and an error code left in the
-** Fts5Index handle. If an error has already occurred when this function
-** is called, it is a no-op.
-*/
-static Fts5Structure *fts5StructureRead(Fts5Index *p){
-
-  if( p->pStruct==0 ){
-    p->iStructVersion = fts5IndexDataVersion(p);
-    if( p->rc==SQLITE_OK ){
-      p->pStruct = fts5StructureReadUncached(p);
-    }
-  }
-
-#if 0
-  else{
-    Fts5Structure *pTest = fts5StructureReadUncached(p);
-    if( pTest ){
-      int i, j;
-      assert_nc( p->pStruct->nSegment==pTest->nSegment );
-      assert_nc( p->pStruct->nLevel==pTest->nLevel );
-      for(i=0; i<pTest->nLevel; i++){
-        assert_nc( p->pStruct->aLevel[i].nMerge==pTest->aLevel[i].nMerge );
-        assert_nc( p->pStruct->aLevel[i].nSeg==pTest->aLevel[i].nSeg );
-        for(j=0; j<pTest->aLevel[i].nSeg; j++){
-          Fts5StructureSegment *p1 = &pTest->aLevel[i].aSeg[j];
-          Fts5StructureSegment *p2 = &p->pStruct->aLevel[i].aSeg[j];
-          assert_nc( p1->iSegid==p2->iSegid );
-          assert_nc( p1->pgnoFirst==p2->pgnoFirst );
-          assert_nc( p1->pgnoLast==p2->pgnoLast );
-        }
-      }
-      fts5StructureRelease(pTest);
-    }
-  }
-#endif
-
-  if( p->rc!=SQLITE_OK ) return 0;
-  assert( p->iStructVersion!=0 );
-  assert( p->pStruct!=0 );
-  fts5StructureRef(p->pStruct);
-  return p->pStruct;
-}
-
-static void fts5StructureInvalidate(Fts5Index *p){
-  if( p->pStruct ){
-    fts5StructureRelease(p->pStruct);
-    p->pStruct = 0;
-  }
-}
-
-/*
-** Return the total number of segments in index structure pStruct. This
-** function is only ever used as part of assert() conditions.
-*/
-#ifdef SQLITE_DEBUG
-static int fts5StructureCountSegments(Fts5Structure *pStruct){
-  int nSegment = 0;               /* Total number of segments */
-  if( pStruct ){
-    int iLvl;                     /* Used to iterate through levels */
-    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
-      nSegment += pStruct->aLevel[iLvl].nSeg;
-    }
-  }
-
-  return nSegment;
-}
-#endif
-
-#define fts5BufferSafeAppendBlob(pBuf, pBlob, nBlob) {     \
-  assert( (pBuf)->nSpace>=((pBuf)->n+nBlob) );             \
-  memcpy(&(pBuf)->p[(pBuf)->n], pBlob, nBlob);             \
-  (pBuf)->n += nBlob;                                      \
-}
-
-#define fts5BufferSafeAppendVarint(pBuf, iVal) {                \
-  (pBuf)->n += tdsqlite3Fts5PutVarint(&(pBuf)->p[(pBuf)->n], (iVal));  \
-  assert( (pBuf)->nSpace>=(pBuf)->n );                          \
-}
-
-
-/*
-** Serialize and store the "structure" record.
-**
-** If an error occurs, leave an error code in the Fts5Index object. If an
-** error has already occurred, this function is a no-op.
-*/
-static void fts5StructureWrite(Fts5Index *p, Fts5Structure *pStruct){
-  if( p->rc==SQLITE_OK ){
-    Fts5Buffer buf;               /* Buffer to serialize record into */
-    int iLvl;                     /* Used to iterate through levels */
-    int iCookie;                  /* Cookie value to store */
-
-    assert( pStruct->nSegment==fts5StructureCountSegments(pStruct) );
-    memset(&buf, 0, sizeof(Fts5Buffer));
-
-    /* Append the current configuration cookie */
-    iCookie = p->pConfig->iCookie;
-    if( iCookie<0 ) iCookie = 0;
-
-    if( 0==tdsqlite3Fts5BufferSize(&p->rc, &buf, 4+9+9+9) ){
-      tdsqlite3Fts5Put32(buf.p, iCookie);
-      buf.n = 4;
-      fts5BufferSafeAppendVarint(&buf, pStruct->nLevel);
-      fts5BufferSafeAppendVarint(&buf, pStruct->nSegment);
-      fts5BufferSafeAppendVarint(&buf, (i64)pStruct->nWriteCounter);
-    }
-
-    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
-      int iSeg;                     /* Used to iterate through segments */
-      Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl];
-      fts5BufferAppendVarint(&p->rc, &buf, pLvl->nMerge);
-      fts5BufferAppendVarint(&p->rc, &buf, pLvl->nSeg);
-      assert( pLvl->nMerge<=pLvl->nSeg );
-
-      for(iSeg=0; iSeg<pLvl->nSeg; iSeg++){
-        fts5BufferAppendVarint(&p->rc, &buf, pLvl->aSeg[iSeg].iSegid);
-        fts5BufferAppendVarint(&p->rc, &buf, pLvl->aSeg[iSeg].pgnoFirst);
-        fts5BufferAppendVarint(&p->rc, &buf, pLvl->aSeg[iSeg].pgnoLast);
-      }
-    }
-
-    fts5DataWrite(p, FTS5_STRUCTURE_ROWID, buf.p, buf.n);
-    fts5BufferFree(&buf);
-  }
-}
-
-#if 0
-static void fts5DebugStructure(int*,Fts5Buffer*,Fts5Structure*);
-static void fts5PrintStructure(const char *zCaption, Fts5Structure *pStruct){
-  int rc = SQLITE_OK;
-  Fts5Buffer buf;
-  memset(&buf, 0, sizeof(buf));
-  fts5DebugStructure(&rc, &buf, pStruct);
-  fprintf(stdout, "%s: %s\n", zCaption, buf.p);
-  fflush(stdout);
-  fts5BufferFree(&buf);
-}
-#else
-# define fts5PrintStructure(x,y)
-#endif
-
-static int fts5SegmentSize(Fts5StructureSegment *pSeg){
-  return 1 + pSeg->pgnoLast - pSeg->pgnoFirst;
-}
-
-/*
-** Return a copy of index structure pStruct. Except, promote as many 
-** segments as possible to level iPromote. If an OOM occurs, NULL is 
-** returned.
-*/
-static void fts5StructurePromoteTo(
-  Fts5Index *p,
-  int iPromote,
-  int szPromote,
-  Fts5Structure *pStruct
-){
-  int il, is;
-  Fts5StructureLevel *pOut = &pStruct->aLevel[iPromote];
-
-  if( pOut->nMerge==0 ){
-    for(il=iPromote+1; il<pStruct->nLevel; il++){
-      Fts5StructureLevel *pLvl = &pStruct->aLevel[il];
-      if( pLvl->nMerge ) return;
-      for(is=pLvl->nSeg-1; is>=0; is--){
-        int sz = fts5SegmentSize(&pLvl->aSeg[is]);
-        if( sz>szPromote ) return;
-        fts5StructureExtendLevel(&p->rc, pStruct, iPromote, 1, 1);
-        if( p->rc ) return;
-        memcpy(pOut->aSeg, &pLvl->aSeg[is], sizeof(Fts5StructureSegment));
-        pOut->nSeg++;
-        pLvl->nSeg--;
-      }
-    }
-  }
-}
-
-/*
-** A new segment has just been written to level iLvl of index structure
-** pStruct. This function determines if any segments should be promoted
-** as a result. Segments are promoted in two scenarios:
-**
-**   a) If the segment just written is smaller than one or more segments
-**      within the previous populated level, it is promoted to the previous
-**      populated level.
-**
-**   b) If the segment just written is larger than the newest segment on
-**      the next populated level, then that segment, and any other adjacent
-**      segments that are also smaller than the one just written, are 
-**      promoted. 
-**
-** If one or more segments are promoted, the structure object is updated
-** to reflect this.
-*/
-static void fts5StructurePromote(
-  Fts5Index *p,                   /* FTS5 backend object */
-  int iLvl,                       /* Index level just updated */
-  Fts5Structure *pStruct          /* Index structure */
-){
-  if( p->rc==SQLITE_OK ){
-    int iTst;
-    int iPromote = -1;
-    int szPromote = 0;            /* Promote anything this size or smaller */
-    Fts5StructureSegment *pSeg;   /* Segment just written */
-    int szSeg;                    /* Size of segment just written */
-    int nSeg = pStruct->aLevel[iLvl].nSeg;
-
-    if( nSeg==0 ) return;
-    pSeg = &pStruct->aLevel[iLvl].aSeg[pStruct->aLevel[iLvl].nSeg-1];
-    szSeg = (1 + pSeg->pgnoLast - pSeg->pgnoFirst);
-
-    /* Check for condition (a) */
-    for(iTst=iLvl-1; iTst>=0 && pStruct->aLevel[iTst].nSeg==0; iTst--);
-    if( iTst>=0 ){
-      int i;
-      int szMax = 0;
-      Fts5StructureLevel *pTst = &pStruct->aLevel[iTst];
-      assert( pTst->nMerge==0 );
-      for(i=0; i<pTst->nSeg; i++){
-        int sz = pTst->aSeg[i].pgnoLast - pTst->aSeg[i].pgnoFirst + 1;
-        if( sz>szMax ) szMax = sz;
-      }
-      if( szMax>=szSeg ){
-        /* Condition (a) is true. Promote the newest segment on level 
-        ** iLvl to level iTst.  */
-        iPromote = iTst;
-        szPromote = szMax;
-      }
-    }
-
-    /* If condition (a) is not met, assume (b) is true. StructurePromoteTo()
-    ** is a no-op if it is not.  */
-    if( iPromote<0 ){
-      iPromote = iLvl;
-      szPromote = szSeg;
-    }
-    fts5StructurePromoteTo(p, iPromote, szPromote, pStruct);
-  }
-}
-
-
-/*
-** Advance the iterator passed as the only argument. If the end of the 
-** doclist-index page is reached, return non-zero.
-*/
-static int fts5DlidxLvlNext(Fts5DlidxLvl *pLvl){
-  Fts5Data *pData = pLvl->pData;
-
-  if( pLvl->iOff==0 ){
-    assert( pLvl->bEof==0 );
-    pLvl->iOff = 1;
-    pLvl->iOff += fts5GetVarint32(&pData->p[1], pLvl->iLeafPgno);
-    pLvl->iOff += fts5GetVarint(&pData->p[pLvl->iOff], (u64*)&pLvl->iRowid);
-    pLvl->iFirstOff = pLvl->iOff;
-  }else{
-    int iOff;
-    for(iOff=pLvl->iOff; iOff<pData->nn; iOff++){
-      if( pData->p[iOff] ) break; 
-    }
-
-    if( iOff<pData->nn ){
-      i64 iVal;
-      pLvl->iLeafPgno += (iOff - pLvl->iOff) + 1;
-      iOff += fts5GetVarint(&pData->p[iOff], (u64*)&iVal);
-      pLvl->iRowid += iVal;
-      pLvl->iOff = iOff;
-    }else{
-      pLvl->bEof = 1;
-    }
-  }
-
-  return pLvl->bEof;
-}
-
-/*
-** Advance the iterator passed as the only argument.
-*/
-static int fts5DlidxIterNextR(Fts5Index *p, Fts5DlidxIter *pIter, int iLvl){
-  Fts5DlidxLvl *pLvl = &pIter->aLvl[iLvl];
-
-  assert( iLvl<pIter->nLvl );
-  if( fts5DlidxLvlNext(pLvl) ){
-    if( (iLvl+1) < pIter->nLvl ){
-      fts5DlidxIterNextR(p, pIter, iLvl+1);
-      if( pLvl[1].bEof==0 ){
-        fts5DataRelease(pLvl->pData);
-        memset(pLvl, 0, sizeof(Fts5DlidxLvl));
-        pLvl->pData = fts5DataRead(p, 
-            FTS5_DLIDX_ROWID(pIter->iSegid, iLvl, pLvl[1].iLeafPgno)
-        );
-        if( pLvl->pData ) fts5DlidxLvlNext(pLvl);
-      }
-    }
-  }
-
-  return pIter->aLvl[0].bEof;
-}
-static int fts5DlidxIterNext(Fts5Index *p, Fts5DlidxIter *pIter){
-  return fts5DlidxIterNextR(p, pIter, 0);
-}
-
-/*
-** The iterator passed as the first argument has the following fields set
-** as follows. This function sets up the rest of the iterator so that it
-** points to the first rowid in the doclist-index.
-**
-**   pData:
-**     pointer to doclist-index record, 
-**
-** When this function is called pIter->iLeafPgno is the page number the
-** doclist is associated with (the one featuring the term).
-*/
-static int fts5DlidxIterFirst(Fts5DlidxIter *pIter){
-  int i;
-  for(i=0; i<pIter->nLvl; i++){
-    fts5DlidxLvlNext(&pIter->aLvl[i]);
-  }
-  return pIter->aLvl[0].bEof;
-}
-
-
-static int fts5DlidxIterEof(Fts5Index *p, Fts5DlidxIter *pIter){
-  return p->rc!=SQLITE_OK || pIter->aLvl[0].bEof;
-}
-
-static void fts5DlidxIterLast(Fts5Index *p, Fts5DlidxIter *pIter){
-  int i;
-
-  /* Advance each level to the last entry on the last page */
-  for(i=pIter->nLvl-1; p->rc==SQLITE_OK && i>=0; i--){
-    Fts5DlidxLvl *pLvl = &pIter->aLvl[i];
-    while( fts5DlidxLvlNext(pLvl)==0 );
-    pLvl->bEof = 0;
-
-    if( i>0 ){
-      Fts5DlidxLvl *pChild = &pLvl[-1];
-      fts5DataRelease(pChild->pData);
-      memset(pChild, 0, sizeof(Fts5DlidxLvl));
-      pChild->pData = fts5DataRead(p, 
-          FTS5_DLIDX_ROWID(pIter->iSegid, i-1, pLvl->iLeafPgno)
-      );
-    }
-  }
-}
-
-/*
-** Move the iterator passed as the only argument to the previous entry.
-*/
-static int fts5DlidxLvlPrev(Fts5DlidxLvl *pLvl){
-  int iOff = pLvl->iOff;
-
-  assert( pLvl->bEof==0 );
-  if( iOff<=pLvl->iFirstOff ){
-    pLvl->bEof = 1;
-  }else{
-    u8 *a = pLvl->pData->p;
-    i64 iVal;
-    int iLimit;
-    int ii;
-    int nZero = 0;
-
-    /* Currently iOff points to the first byte of a varint. This block 
-    ** decrements iOff until it points to the first byte of the previous 
-    ** varint. Taking care not to read any memory locations that occur
-    ** before the buffer in memory.  */
-    iLimit = (iOff>9 ? iOff-9 : 0);
-    for(iOff--; iOff>iLimit; iOff--){
-      if( (a[iOff-1] & 0x80)==0 ) break;
-    }
-
-    fts5GetVarint(&a[iOff], (u64*)&iVal);
-    pLvl->iRowid -= iVal;
-    pLvl->iLeafPgno--;
-
-    /* Skip backwards past any 0x00 varints. */
-    for(ii=iOff-1; ii>=pLvl->iFirstOff && a[ii]==0x00; ii--){
-      nZero++;
-    }
-    if( ii>=pLvl->iFirstOff && (a[ii] & 0x80) ){
-      /* The byte immediately before the last 0x00 byte has the 0x80 bit
-      ** set. So the last 0x00 is only a varint 0 if there are 8 more 0x80
-      ** bytes before a[ii]. */
-      int bZero = 0;              /* True if last 0x00 counts */
-      if( (ii-8)>=pLvl->iFirstOff ){
-        int j;
-        for(j=1; j<=8 && (a[ii-j] & 0x80); j++);
-        bZero = (j>8);
-      }
-      if( bZero==0 ) nZero--;
-    }
-    pLvl->iLeafPgno -= nZero;
-    pLvl->iOff = iOff - nZero;
-  }
-
-  return pLvl->bEof;
-}
-
-static int fts5DlidxIterPrevR(Fts5Index *p, Fts5DlidxIter *pIter, int iLvl){
-  Fts5DlidxLvl *pLvl = &pIter->aLvl[iLvl];
-
-  assert( iLvl<pIter->nLvl );
-  if( fts5DlidxLvlPrev(pLvl) ){
-    if( (iLvl+1) < pIter->nLvl ){
-      fts5DlidxIterPrevR(p, pIter, iLvl+1);
-      if( pLvl[1].bEof==0 ){
-        fts5DataRelease(pLvl->pData);
-        memset(pLvl, 0, sizeof(Fts5DlidxLvl));
-        pLvl->pData = fts5DataRead(p, 
-            FTS5_DLIDX_ROWID(pIter->iSegid, iLvl, pLvl[1].iLeafPgno)
-        );
-        if( pLvl->pData ){
-          while( fts5DlidxLvlNext(pLvl)==0 );
-          pLvl->bEof = 0;
-        }
-      }
-    }
-  }
-
-  return pIter->aLvl[0].bEof;
-}
-static int fts5DlidxIterPrev(Fts5Index *p, Fts5DlidxIter *pIter){
-  return fts5DlidxIterPrevR(p, pIter, 0);
-}
-
-/*
-** Free a doclist-index iterator object allocated by fts5DlidxIterInit().
-*/
-static void fts5DlidxIterFree(Fts5DlidxIter *pIter){
-  if( pIter ){
-    int i;
-    for(i=0; i<pIter->nLvl; i++){
-      fts5DataRelease(pIter->aLvl[i].pData);
-    }
-    tdsqlite3_free(pIter);
-  }
-}
-
-static Fts5DlidxIter *fts5DlidxIterInit(
-  Fts5Index *p,                   /* Fts5 Backend to iterate within */
-  int bRev,                       /* True for ORDER BY ASC */
-  int iSegid,                     /* Segment id */
-  int iLeafPg                     /* Leaf page number to load dlidx for */
-){
-  Fts5DlidxIter *pIter = 0;
-  int i;
-  int bDone = 0;
-
-  for(i=0; p->rc==SQLITE_OK && bDone==0; i++){
-    tdsqlite3_int64 nByte = sizeof(Fts5DlidxIter) + i * sizeof(Fts5DlidxLvl);
-    Fts5DlidxIter *pNew;
-
-    pNew = (Fts5DlidxIter*)tdsqlite3_realloc64(pIter, nByte);
-    if( pNew==0 ){
-      p->rc = SQLITE_NOMEM;
-    }else{
-      i64 iRowid = FTS5_DLIDX_ROWID(iSegid, i, iLeafPg);
-      Fts5DlidxLvl *pLvl = &pNew->aLvl[i];
-      pIter = pNew;
-      memset(pLvl, 0, sizeof(Fts5DlidxLvl));
-      pLvl->pData = fts5DataRead(p, iRowid);
-      if( pLvl->pData && (pLvl->pData->p[0] & 0x0001)==0 ){
-        bDone = 1;
-      }
-      pIter->nLvl = i+1;
-    }
-  }
-
-  if( p->rc==SQLITE_OK ){
-    pIter->iSegid = iSegid;
-    if( bRev==0 ){
-      fts5DlidxIterFirst(pIter);
-    }else{
-      fts5DlidxIterLast(p, pIter);
-    }
-  }
-
-  if( p->rc!=SQLITE_OK ){
-    fts5DlidxIterFree(pIter);
-    pIter = 0;
-  }
-
-  return pIter;
-}
-
-static i64 fts5DlidxIterRowid(Fts5DlidxIter *pIter){
-  return pIter->aLvl[0].iRowid;
-}
-static int fts5DlidxIterPgno(Fts5DlidxIter *pIter){
-  return pIter->aLvl[0].iLeafPgno;
-}
-
-/*
-** Load the next leaf page into the segment iterator.
-*/
-static void fts5SegIterNextPage(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5SegIter *pIter              /* Iterator to advance to next page */
-){
-  Fts5Data *pLeaf;
-  Fts5StructureSegment *pSeg = pIter->pSeg;
-  fts5DataRelease(pIter->pLeaf);
-  pIter->iLeafPgno++;
-  if( pIter->pNextLeaf ){
-    pIter->pLeaf = pIter->pNextLeaf;
-    pIter->pNextLeaf = 0;
-  }else if( pIter->iLeafPgno<=pSeg->pgnoLast ){
-    pIter->pLeaf = fts5LeafRead(p, 
-        FTS5_SEGMENT_ROWID(pSeg->iSegid, pIter->iLeafPgno)
-    );
-  }else{
-    pIter->pLeaf = 0;
-  }
-  pLeaf = pIter->pLeaf;
-
-  if( pLeaf ){
-    pIter->iPgidxOff = pLeaf->szLeaf;
-    if( fts5LeafIsTermless(pLeaf) ){
-      pIter->iEndofDoclist = pLeaf->nn+1;
-    }else{
-      pIter->iPgidxOff += fts5GetVarint32(&pLeaf->p[pIter->iPgidxOff],
-          pIter->iEndofDoclist
-      );
-    }
-  }
-}
-
-/*
-** Argument p points to a buffer containing a varint to be interpreted as a
-** position list size field. Read the varint and return the number of bytes
-** read. Before returning, set *pnSz to the number of bytes in the position
-** list, and *pbDel to true if the delete flag is set, or false otherwise.
-*/
-static int fts5GetPoslistSize(const u8 *p, int *pnSz, int *pbDel){
-  int nSz;
-  int n = 0;
-  fts5FastGetVarint32(p, n, nSz);
-  assert_nc( nSz>=0 );
-  *pnSz = nSz/2;
-  *pbDel = nSz & 0x0001;
-  return n;
-}
-
-/*
-** Fts5SegIter.iLeafOffset currently points to the first byte of a
-** position-list size field. Read the value of the field and store it
-** in the following variables:
-**
-**   Fts5SegIter.nPos
-**   Fts5SegIter.bDel
-**
-** Leave Fts5SegIter.iLeafOffset pointing to the first byte of the 
-** position list content (if any).
-*/
-static void fts5SegIterLoadNPos(Fts5Index *p, Fts5SegIter *pIter){
-  if( p->rc==SQLITE_OK ){
-    int iOff = pIter->iLeafOffset;  /* Offset to read at */
-    ASSERT_SZLEAF_OK(pIter->pLeaf);
-    if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){
-      int iEod = MIN(pIter->iEndofDoclist, pIter->pLeaf->szLeaf);
-      pIter->bDel = 0;
-      pIter->nPos = 1;
-      if( iOff<iEod && pIter->pLeaf->p[iOff]==0 ){
-        pIter->bDel = 1;
-        iOff++;
-        if( iOff<iEod && pIter->pLeaf->p[iOff]==0 ){
-          pIter->nPos = 1;
-          iOff++;
-        }else{
-          pIter->nPos = 0;
-        }
-      }
-    }else{
-      int nSz;
-      fts5FastGetVarint32(pIter->pLeaf->p, iOff, nSz);
-      pIter->bDel = (nSz & 0x0001);
-      pIter->nPos = nSz>>1;
-      assert_nc( pIter->nPos>=0 );
-    }
-    pIter->iLeafOffset = iOff;
-  }
-}
-
-static void fts5SegIterLoadRowid(Fts5Index *p, Fts5SegIter *pIter){
-  u8 *a = pIter->pLeaf->p;        /* Buffer to read data from */
-  int iOff = pIter->iLeafOffset;
-
-  ASSERT_SZLEAF_OK(pIter->pLeaf);
-  if( iOff>=pIter->pLeaf->szLeaf ){
-    fts5SegIterNextPage(p, pIter);
-    if( pIter->pLeaf==0 ){
-      if( p->rc==SQLITE_OK ) p->rc = FTS5_CORRUPT;
-      return;
-    }
-    iOff = 4;
-    a = pIter->pLeaf->p;
-  }
-  iOff += tdsqlite3Fts5GetVarint(&a[iOff], (u64*)&pIter->iRowid);
-  pIter->iLeafOffset = iOff;
-}
-
-/*
-** Fts5SegIter.iLeafOffset currently points to the first byte of the 
-** "nSuffix" field of a term. Function parameter nKeep contains the value
-** of the "nPrefix" field (if there was one - it is passed 0 if this is
-** the first term in the segment).
-**
-** This function populates:
-**
-**   Fts5SegIter.term
-**   Fts5SegIter.rowid
-**
-** accordingly and leaves (Fts5SegIter.iLeafOffset) set to the content of
-** the first position list. The position list belonging to document 
-** (Fts5SegIter.iRowid).
-*/
-static void fts5SegIterLoadTerm(Fts5Index *p, Fts5SegIter *pIter, int nKeep){
-  u8 *a = pIter->pLeaf->p;        /* Buffer to read data from */
-  int iOff = pIter->iLeafOffset;  /* Offset to read at */
-  int nNew;                       /* Bytes of new data */
-
-  iOff += fts5GetVarint32(&a[iOff], nNew);
-  if( iOff+nNew>pIter->pLeaf->szLeaf || nKeep>pIter->term.n || nNew==0 ){
-    p->rc = FTS5_CORRUPT;
-    return;
-  }
-  pIter->term.n = nKeep;
-  fts5BufferAppendBlob(&p->rc, &pIter->term, nNew, &a[iOff]);
-  assert( pIter->term.n<=pIter->term.nSpace );
-  iOff += nNew;
-  pIter->iTermLeafOffset = iOff;
-  pIter->iTermLeafPgno = pIter->iLeafPgno;
-  pIter->iLeafOffset = iOff;
-
-  if( pIter->iPgidxOff>=pIter->pLeaf->nn ){
-    pIter->iEndofDoclist = pIter->pLeaf->nn+1;
-  }else{
-    int nExtra;
-    pIter->iPgidxOff += fts5GetVarint32(&a[pIter->iPgidxOff], nExtra);
-    pIter->iEndofDoclist += nExtra;
-  }
-
-  fts5SegIterLoadRowid(p, pIter);
-}
-
-static void fts5SegIterNext(Fts5Index*, Fts5SegIter*, int*);
-static void fts5SegIterNext_Reverse(Fts5Index*, Fts5SegIter*, int*);
-static void fts5SegIterNext_None(Fts5Index*, Fts5SegIter*, int*);
-
-static void fts5SegIterSetNext(Fts5Index *p, Fts5SegIter *pIter){
-  if( pIter->flags & FTS5_SEGITER_REVERSE ){
-    pIter->xNext = fts5SegIterNext_Reverse;
-  }else if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){
-    pIter->xNext = fts5SegIterNext_None;
-  }else{
-    pIter->xNext = fts5SegIterNext;
-  }
-}
-
-/*
-** Initialize the iterator object pIter to iterate through the entries in
-** segment pSeg. The iterator is left pointing to the first entry when 
-** this function returns.
-**
-** If an error occurs, Fts5Index.rc is set to an appropriate error code. If 
-** an error has already occurred when this function is called, it is a no-op.
-*/
-static void fts5SegIterInit(
-  Fts5Index *p,                   /* FTS index object */
-  Fts5StructureSegment *pSeg,     /* Description of segment */
-  Fts5SegIter *pIter              /* Object to populate */
-){
-  if( pSeg->pgnoFirst==0 ){
-    /* This happens if the segment is being used as an input to an incremental
-    ** merge and all data has already been "trimmed". See function
-    ** fts5TrimSegments() for details. In this case leave the iterator empty.
-    ** The caller will see the (pIter->pLeaf==0) and assume the iterator is
-    ** at EOF already. */
-    assert( pIter->pLeaf==0 );
-    return;
-  }
-
-  if( p->rc==SQLITE_OK ){
-    memset(pIter, 0, sizeof(*pIter));
-    fts5SegIterSetNext(p, pIter);
-    pIter->pSeg = pSeg;
-    pIter->iLeafPgno = pSeg->pgnoFirst-1;
-    fts5SegIterNextPage(p, pIter);
-  }
-
-  if( p->rc==SQLITE_OK ){
-    pIter->iLeafOffset = 4;
-    assert_nc( pIter->pLeaf->nn>4 );
-    assert_nc( fts5LeafFirstTermOff(pIter->pLeaf)==4 );
-    pIter->iPgidxOff = pIter->pLeaf->szLeaf+1;
-    fts5SegIterLoadTerm(p, pIter, 0);
-    fts5SegIterLoadNPos(p, pIter);
-  }
-}
-
-/*
-** This function is only ever called on iterators created by calls to
-** Fts5IndexQuery() with the FTS5INDEX_QUERY_DESC flag set.
-**
-** The iterator is in an unusual state when this function is called: the
-** Fts5SegIter.iLeafOffset variable is set to the offset of the start of
-** the position-list size field for the first relevant rowid on the page.
-** Fts5SegIter.rowid is set, but nPos and bDel are not.
-**
-** This function advances the iterator so that it points to the last 
-** relevant rowid on the page and, if necessary, initializes the 
-** aRowidOffset[] and iRowidOffset variables. At this point the iterator
-** is in its regular state - Fts5SegIter.iLeafOffset points to the first
-** byte of the position list content associated with said rowid.
-*/
-static void fts5SegIterReverseInitPage(Fts5Index *p, Fts5SegIter *pIter){
-  int eDetail = p->pConfig->eDetail;
-  int n = pIter->pLeaf->szLeaf;
-  int i = pIter->iLeafOffset;
-  u8 *a = pIter->pLeaf->p;
-  int iRowidOffset = 0;
-
-  if( n>pIter->iEndofDoclist ){
-    n = pIter->iEndofDoclist;
-  }
-
-  ASSERT_SZLEAF_OK(pIter->pLeaf);
-  while( 1 ){
-    i64 iDelta = 0;
-
-    if( eDetail==FTS5_DETAIL_NONE ){
-      /* todo */
-      if( i<n && a[i]==0 ){
-        i++;
-        if( i<n && a[i]==0 ) i++;
-      }
-    }else{
-      int nPos;
-      int bDummy;
-      i += fts5GetPoslistSize(&a[i], &nPos, &bDummy);
-      i += nPos;
-    }
-    if( i>=n ) break;
-    i += fts5GetVarint(&a[i], (u64*)&iDelta);
-    pIter->iRowid += iDelta;
-
-    /* If necessary, grow the pIter->aRowidOffset[] array. */
-    if( iRowidOffset>=pIter->nRowidOffset ){
-      int nNew = pIter->nRowidOffset + 8;
-      int *aNew = (int*)tdsqlite3_realloc64(pIter->aRowidOffset,nNew*sizeof(int));
-      if( aNew==0 ){
-        p->rc = SQLITE_NOMEM;
-        break;
-      }
-      pIter->aRowidOffset = aNew;
-      pIter->nRowidOffset = nNew;
-    }
-
-    pIter->aRowidOffset[iRowidOffset++] = pIter->iLeafOffset;
-    pIter->iLeafOffset = i;
-  }
-  pIter->iRowidOffset = iRowidOffset;
-  fts5SegIterLoadNPos(p, pIter);
-}
-
-/*
-**
-*/
-static void fts5SegIterReverseNewPage(Fts5Index *p, Fts5SegIter *pIter){
-  assert( pIter->flags & FTS5_SEGITER_REVERSE );
-  assert( pIter->flags & FTS5_SEGITER_ONETERM );
-
-  fts5DataRelease(pIter->pLeaf);
-  pIter->pLeaf = 0;
-  while( p->rc==SQLITE_OK && pIter->iLeafPgno>pIter->iTermLeafPgno ){
-    Fts5Data *pNew;
-    pIter->iLeafPgno--;
-    pNew = fts5DataRead(p, FTS5_SEGMENT_ROWID(
-          pIter->pSeg->iSegid, pIter->iLeafPgno
-    ));
-    if( pNew ){
-      /* iTermLeafOffset may be equal to szLeaf if the term is the last
-      ** thing on the page - i.e. the first rowid is on the following page.
-      ** In this case leave pIter->pLeaf==0, this iterator is at EOF. */
-      if( pIter->iLeafPgno==pIter->iTermLeafPgno ){
-        assert( pIter->pLeaf==0 );
-        if( pIter->iTermLeafOffset<pNew->szLeaf ){
-          pIter->pLeaf = pNew;
-          pIter->iLeafOffset = pIter->iTermLeafOffset;
-        }
-      }else{
-        int iRowidOff;
-        iRowidOff = fts5LeafFirstRowidOff(pNew);
-        if( iRowidOff ){
-          pIter->pLeaf = pNew;
-          pIter->iLeafOffset = iRowidOff;
-        }
-      }
-
-      if( pIter->pLeaf ){
-        u8 *a = &pIter->pLeaf->p[pIter->iLeafOffset];
-        pIter->iLeafOffset += fts5GetVarint(a, (u64*)&pIter->iRowid);
-        break;
-      }else{
-        fts5DataRelease(pNew);
-      }
-    }
-  }
-
-  if( pIter->pLeaf ){
-    pIter->iEndofDoclist = pIter->pLeaf->nn+1;
-    fts5SegIterReverseInitPage(p, pIter);
-  }
-}
-
-/*
-** Return true if the iterator passed as the second argument currently
-** points to a delete marker. A delete marker is an entry with a 0 byte
-** position-list.
-*/
-static int fts5MultiIterIsEmpty(Fts5Index *p, Fts5Iter *pIter){
-  Fts5SegIter *pSeg = &pIter->aSeg[pIter->aFirst[1].iFirst];
-  return (p->rc==SQLITE_OK && pSeg->pLeaf && pSeg->nPos==0);
-}
-
-/*
-** Advance iterator pIter to the next entry.
-**
-** This version of fts5SegIterNext() is only used by reverse iterators.
-*/
-static void fts5SegIterNext_Reverse(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5SegIter *pIter,             /* Iterator to advance */
-  int *pbUnused                   /* Unused */
-){
-  assert( pIter->flags & FTS5_SEGITER_REVERSE );
-  assert( pIter->pNextLeaf==0 );
-  UNUSED_PARAM(pbUnused);
-
-  if( pIter->iRowidOffset>0 ){
-    u8 *a = pIter->pLeaf->p;
-    int iOff;
-    i64 iDelta;
-
-    pIter->iRowidOffset--;
-    pIter->iLeafOffset = pIter->aRowidOffset[pIter->iRowidOffset];
-    fts5SegIterLoadNPos(p, pIter);
-    iOff = pIter->iLeafOffset;
-    if( p->pConfig->eDetail!=FTS5_DETAIL_NONE ){
-      iOff += pIter->nPos;
-    }
-    fts5GetVarint(&a[iOff], (u64*)&iDelta);
-    pIter->iRowid -= iDelta;
-  }else{
-    fts5SegIterReverseNewPage(p, pIter);
-  }
-}
-
-/*
-** Advance iterator pIter to the next entry.
-**
-** This version of fts5SegIterNext() is only used if detail=none and the
-** iterator is not a reverse direction iterator.
-*/
-static void fts5SegIterNext_None(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5SegIter *pIter,             /* Iterator to advance */
-  int *pbNewTerm                  /* OUT: Set for new term */
-){
-  int iOff;
-
-  assert( p->rc==SQLITE_OK );
-  assert( (pIter->flags & FTS5_SEGITER_REVERSE)==0 );
-  assert( p->pConfig->eDetail==FTS5_DETAIL_NONE );
-
-  ASSERT_SZLEAF_OK(pIter->pLeaf);
-  iOff = pIter->iLeafOffset;
-
-  /* Next entry is on the next page */
-  if( pIter->pSeg && iOff>=pIter->pLeaf->szLeaf ){
-    fts5SegIterNextPage(p, pIter);
-    if( p->rc || pIter->pLeaf==0 ) return;
-    pIter->iRowid = 0;
-    iOff = 4;
-  }
-
-  if( iOff<pIter->iEndofDoclist ){
-    /* Next entry is on the current page */
-    i64 iDelta;
-    iOff += tdsqlite3Fts5GetVarint(&pIter->pLeaf->p[iOff], (u64*)&iDelta);
-    pIter->iLeafOffset = iOff;
-    pIter->iRowid += iDelta;
-  }else if( (pIter->flags & FTS5_SEGITER_ONETERM)==0 ){
-    if( pIter->pSeg ){
-      int nKeep = 0;
-      if( iOff!=fts5LeafFirstTermOff(pIter->pLeaf) ){
-        iOff += fts5GetVarint32(&pIter->pLeaf->p[iOff], nKeep);
-      }
-      pIter->iLeafOffset = iOff;
-      fts5SegIterLoadTerm(p, pIter, nKeep);
-    }else{
-      const u8 *pList = 0;
-      const char *zTerm = 0;
-      int nList;
-      tdsqlite3Fts5HashScanNext(p->pHash);
-      tdsqlite3Fts5HashScanEntry(p->pHash, &zTerm, &pList, &nList);
-      if( pList==0 ) goto next_none_eof;
-      pIter->pLeaf->p = (u8*)pList;
-      pIter->pLeaf->nn = nList;
-      pIter->pLeaf->szLeaf = nList;
-      pIter->iEndofDoclist = nList;
-      tdsqlite3Fts5BufferSet(&p->rc,&pIter->term, (int)strlen(zTerm), (u8*)zTerm);
-      pIter->iLeafOffset = fts5GetVarint(pList, (u64*)&pIter->iRowid);
-    }
-
-    if( pbNewTerm ) *pbNewTerm = 1;
-  }else{
-    goto next_none_eof;
-  }
-
-  fts5SegIterLoadNPos(p, pIter);
-
-  return;
- next_none_eof:
-  fts5DataRelease(pIter->pLeaf);
-  pIter->pLeaf = 0;
-}
-
-
-/*
-** Advance iterator pIter to the next entry. 
-**
-** If an error occurs, Fts5Index.rc is set to an appropriate error code. It 
-** is not considered an error if the iterator reaches EOF. If an error has 
-** already occurred when this function is called, it is a no-op.
-*/
-static void fts5SegIterNext(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5SegIter *pIter,             /* Iterator to advance */
-  int *pbNewTerm                  /* OUT: Set for new term */
-){
-  Fts5Data *pLeaf = pIter->pLeaf;
-  int iOff;
-  int bNewTerm = 0;
-  int nKeep = 0;
-  u8 *a;
-  int n;
-
-  assert( pbNewTerm==0 || *pbNewTerm==0 );
-  assert( p->pConfig->eDetail!=FTS5_DETAIL_NONE );
-
-  /* Search for the end of the position list within the current page. */
-  a = pLeaf->p;
-  n = pLeaf->szLeaf;
-
-  ASSERT_SZLEAF_OK(pLeaf);
-  iOff = pIter->iLeafOffset + pIter->nPos;
-
-  if( iOff<n ){
-    /* The next entry is on the current page. */
-    assert_nc( iOff<=pIter->iEndofDoclist );
-    if( iOff>=pIter->iEndofDoclist ){
-      bNewTerm = 1;
-      if( iOff!=fts5LeafFirstTermOff(pLeaf) ){
-        iOff += fts5GetVarint32(&a[iOff], nKeep);
-      }
-    }else{
-      u64 iDelta;
-      iOff += tdsqlite3Fts5GetVarint(&a[iOff], &iDelta);
-      pIter->iRowid += iDelta;
-      assert_nc( iDelta>0 );
-    }
-    pIter->iLeafOffset = iOff;
-
-  }else if( pIter->pSeg==0 ){
-    const u8 *pList = 0;
-    const char *zTerm = 0;
-    int nList = 0;
-    assert( (pIter->flags & FTS5_SEGITER_ONETERM) || pbNewTerm );
-    if( 0==(pIter->flags & FTS5_SEGITER_ONETERM) ){
-      tdsqlite3Fts5HashScanNext(p->pHash);
-      tdsqlite3Fts5HashScanEntry(p->pHash, &zTerm, &pList, &nList);
-    }
-    if( pList==0 ){
-      fts5DataRelease(pIter->pLeaf);
-      pIter->pLeaf = 0;
-    }else{
-      pIter->pLeaf->p = (u8*)pList;
-      pIter->pLeaf->nn = nList;
-      pIter->pLeaf->szLeaf = nList;
-      pIter->iEndofDoclist = nList+1;
-      tdsqlite3Fts5BufferSet(&p->rc, &pIter->term, (int)strlen(zTerm),
-          (u8*)zTerm);
-      pIter->iLeafOffset = fts5GetVarint(pList, (u64*)&pIter->iRowid);
-      *pbNewTerm = 1;
-    }
-  }else{
-    iOff = 0;
-    /* Next entry is not on the current page */
-    while( iOff==0 ){
-      fts5SegIterNextPage(p, pIter);
-      pLeaf = pIter->pLeaf;
-      if( pLeaf==0 ) break;
-      ASSERT_SZLEAF_OK(pLeaf);
-      if( (iOff = fts5LeafFirstRowidOff(pLeaf)) && iOff<pLeaf->szLeaf ){
-        iOff += tdsqlite3Fts5GetVarint(&pLeaf->p[iOff], (u64*)&pIter->iRowid);
-        pIter->iLeafOffset = iOff;
-
-        if( pLeaf->nn>pLeaf->szLeaf ){
-          pIter->iPgidxOff = pLeaf->szLeaf + fts5GetVarint32(
-              &pLeaf->p[pLeaf->szLeaf], pIter->iEndofDoclist
-          );
-        }
-      }
-      else if( pLeaf->nn>pLeaf->szLeaf ){
-        pIter->iPgidxOff = pLeaf->szLeaf + fts5GetVarint32(
-            &pLeaf->p[pLeaf->szLeaf], iOff
-        );
-        pIter->iLeafOffset = iOff;
-        pIter->iEndofDoclist = iOff;
-        bNewTerm = 1;
-      }
-      assert_nc( iOff<pLeaf->szLeaf );
-      if( iOff>pLeaf->szLeaf ){
-        p->rc = FTS5_CORRUPT;
-        return;
-      }
-    }
-  }
-
-  /* Check if the iterator is now at EOF. If so, return early. */
-  if( pIter->pLeaf ){
-    if( bNewTerm ){
-      if( pIter->flags & FTS5_SEGITER_ONETERM ){
-        fts5DataRelease(pIter->pLeaf);
-        pIter->pLeaf = 0;
-      }else{
-        fts5SegIterLoadTerm(p, pIter, nKeep);
-        fts5SegIterLoadNPos(p, pIter);
-        if( pbNewTerm ) *pbNewTerm = 1;
-      }
-    }else{
-      /* The following could be done by calling fts5SegIterLoadNPos(). But
-      ** this block is particularly performance critical, so equivalent
-      ** code is inlined. 
-      **
-      ** Later: Switched back to fts5SegIterLoadNPos() because it supports
-      ** detail=none mode. Not ideal.
-      */
-      int nSz;
-      assert( p->rc==SQLITE_OK );
-      assert( pIter->iLeafOffset<=pIter->pLeaf->nn );
-      fts5FastGetVarint32(pIter->pLeaf->p, pIter->iLeafOffset, nSz);
-      pIter->bDel = (nSz & 0x0001);
-      pIter->nPos = nSz>>1;
-      assert_nc( pIter->nPos>=0 );
-    }
-  }
-}
-
-#define SWAPVAL(T, a, b) { T tmp; tmp=a; a=b; b=tmp; }
-
-#define fts5IndexSkipVarint(a, iOff) {            \
-  int iEnd = iOff+9;                              \
-  while( (a[iOff++] & 0x80) && iOff<iEnd );       \
-}
-
-/*
-** Iterator pIter currently points to the first rowid in a doclist. This
-** function sets the iterator up so that iterates in reverse order through
-** the doclist.
-*/
-static void fts5SegIterReverse(Fts5Index *p, Fts5SegIter *pIter){
-  Fts5DlidxIter *pDlidx = pIter->pDlidx;
-  Fts5Data *pLast = 0;
-  int pgnoLast = 0;
-
-  if( pDlidx ){
-    int iSegid = pIter->pSeg->iSegid;
-    pgnoLast = fts5DlidxIterPgno(pDlidx);
-    pLast = fts5DataRead(p, FTS5_SEGMENT_ROWID(iSegid, pgnoLast));
-  }else{
-    Fts5Data *pLeaf = pIter->pLeaf;         /* Current leaf data */
-
-    /* Currently, Fts5SegIter.iLeafOffset points to the first byte of
-    ** position-list content for the current rowid. Back it up so that it
-    ** points to the start of the position-list size field. */
-    int iPoslist;
-    if( pIter->iTermLeafPgno==pIter->iLeafPgno ){
-      iPoslist = pIter->iTermLeafOffset;
-    }else{
-      iPoslist = 4;
-    }
-    fts5IndexSkipVarint(pLeaf->p, iPoslist);
-    pIter->iLeafOffset = iPoslist;
-
-    /* If this condition is true then the largest rowid for the current
-    ** term may not be stored on the current page. So search forward to
-    ** see where said rowid really is.  */
-    if( pIter->iEndofDoclist>=pLeaf->szLeaf ){
-      int pgno;
-      Fts5StructureSegment *pSeg = pIter->pSeg;
-
-      /* The last rowid in the doclist may not be on the current page. Search
-      ** forward to find the page containing the last rowid.  */
-      for(pgno=pIter->iLeafPgno+1; !p->rc && pgno<=pSeg->pgnoLast; pgno++){
-        i64 iAbs = FTS5_SEGMENT_ROWID(pSeg->iSegid, pgno);
-        Fts5Data *pNew = fts5DataRead(p, iAbs);
-        if( pNew ){
-          int iRowid, bTermless;
-          iRowid = fts5LeafFirstRowidOff(pNew);
-          bTermless = fts5LeafIsTermless(pNew);
-          if( iRowid ){
-            SWAPVAL(Fts5Data*, pNew, pLast);
-            pgnoLast = pgno;
-          }
-          fts5DataRelease(pNew);
-          if( bTermless==0 ) break;
-        }
-      }
-    }
-  }
-
-  /* If pLast is NULL at this point, then the last rowid for this doclist
-  ** lies on the page currently indicated by the iterator. In this case 
-  ** pIter->iLeafOffset is already set to point to the position-list size
-  ** field associated with the first relevant rowid on the page.
-  **
-  ** Or, if pLast is non-NULL, then it is the page that contains the last
-  ** rowid. In this case configure the iterator so that it points to the
-  ** first rowid on this page.
-  */
-  if( pLast ){
-    int iOff;
-    fts5DataRelease(pIter->pLeaf);
-    pIter->pLeaf = pLast;
-    pIter->iLeafPgno = pgnoLast;
-    iOff = fts5LeafFirstRowidOff(pLast);
-    iOff += fts5GetVarint(&pLast->p[iOff], (u64*)&pIter->iRowid);
-    pIter->iLeafOffset = iOff;
-
-    if( fts5LeafIsTermless(pLast) ){
-      pIter->iEndofDoclist = pLast->nn+1;
-    }else{
-      pIter->iEndofDoclist = fts5LeafFirstTermOff(pLast);
-    }
-
-  }
-
-  fts5SegIterReverseInitPage(p, pIter);
-}
-
-/*
-** Iterator pIter currently points to the first rowid of a doclist.
-** There is a doclist-index associated with the final term on the current 
-** page. If the current term is the last term on the page, load the 
-** doclist-index from disk and initialize an iterator at (pIter->pDlidx).
-*/
-static void fts5SegIterLoadDlidx(Fts5Index *p, Fts5SegIter *pIter){
-  int iSeg = pIter->pSeg->iSegid;
-  int bRev = (pIter->flags & FTS5_SEGITER_REVERSE);
-  Fts5Data *pLeaf = pIter->pLeaf; /* Current leaf data */
-
-  assert( pIter->flags & FTS5_SEGITER_ONETERM );
-  assert( pIter->pDlidx==0 );
-
-  /* Check if the current doclist ends on this page. If it does, return
-  ** early without loading the doclist-index (as it belongs to a different
-  ** term. */
-  if( pIter->iTermLeafPgno==pIter->iLeafPgno 
-   && pIter->iEndofDoclist<pLeaf->szLeaf 
-  ){
-    return;
-  }
-
-  pIter->pDlidx = fts5DlidxIterInit(p, bRev, iSeg, pIter->iTermLeafPgno);
-}
-
-/*
-** The iterator object passed as the second argument currently contains
-** no valid values except for the Fts5SegIter.pLeaf member variable. This
-** function searches the leaf page for a term matching (pTerm/nTerm).
-**
-** If the specified term is found on the page, then the iterator is left
-** pointing to it. If argument bGe is zero and the term is not found,
-** the iterator is left pointing at EOF.
-**
-** If bGe is non-zero and the specified term is not found, then the
-** iterator is left pointing to the smallest term in the segment that
-** is larger than the specified term, even if this term is not on the
-** current page.
-*/
-static void fts5LeafSeek(
-  Fts5Index *p,                   /* Leave any error code here */
-  int bGe,                        /* True for a >= search */
-  Fts5SegIter *pIter,             /* Iterator to seek */
-  const u8 *pTerm, int nTerm      /* Term to search for */
-){
-  int iOff;
-  const u8 *a = pIter->pLeaf->p;
-  int szLeaf = pIter->pLeaf->szLeaf;
-  int n = pIter->pLeaf->nn;
-
-  u32 nMatch = 0;
-  u32 nKeep = 0;
-  u32 nNew = 0;
-  u32 iTermOff;
-  int iPgidx;                     /* Current offset in pgidx */
-  int bEndOfPage = 0;
-
-  assert( p->rc==SQLITE_OK );
-
-  iPgidx = szLeaf;
-  iPgidx += fts5GetVarint32(&a[iPgidx], iTermOff);
-  iOff = iTermOff;
-  if( iOff>n ){
-    p->rc = FTS5_CORRUPT;
-    return;
-  }
-
-  while( 1 ){
-
-    /* Figure out how many new bytes are in this term */
-    fts5FastGetVarint32(a, iOff, nNew);
-    if( nKeep<nMatch ){
-      goto search_failed;
-    }
-
-    assert( nKeep>=nMatch );
-    if( nKeep==nMatch ){
-      u32 nCmp;
-      u32 i;
-      nCmp = (u32)MIN(nNew, nTerm-nMatch);
-      for(i=0; i<nCmp; i++){
-        if( a[iOff+i]!=pTerm[nMatch+i] ) break;
-      }
-      nMatch += i;
-
-      if( (u32)nTerm==nMatch ){
-        if( i==nNew ){
-          goto search_success;
-        }else{
-          goto search_failed;
-        }
-      }else if( i<nNew && a[iOff+i]>pTerm[nMatch] ){
-        goto search_failed;
-      }
-    }
-
-    if( iPgidx>=n ){
-      bEndOfPage = 1;
-      break;
-    }
-
-    iPgidx += fts5GetVarint32(&a[iPgidx], nKeep);
-    iTermOff += nKeep;
-    iOff = iTermOff;
-
-    if( iOff>=n ){
-      p->rc = FTS5_CORRUPT;
-      return;
-    }
-
-    /* Read the nKeep field of the next term. */
-    fts5FastGetVarint32(a, iOff, nKeep);
-  }
-
- search_failed:
-  if( bGe==0 ){
-    fts5DataRelease(pIter->pLeaf);
-    pIter->pLeaf = 0;
-    return;
-  }else if( bEndOfPage ){
-    do {
-      fts5SegIterNextPage(p, pIter);
-      if( pIter->pLeaf==0 ) return;
-      a = pIter->pLeaf->p;
-      if( fts5LeafIsTermless(pIter->pLeaf)==0 ){
-        iPgidx = pIter->pLeaf->szLeaf;
-        iPgidx += fts5GetVarint32(&pIter->pLeaf->p[iPgidx], iOff);
-        if( iOff<4 || iOff>=pIter->pLeaf->szLeaf ){
-          p->rc = FTS5_CORRUPT;
-          return;
-        }else{
-          nKeep = 0;
-          iTermOff = iOff;
-          n = pIter->pLeaf->nn;
-          iOff += fts5GetVarint32(&a[iOff], nNew);
-          break;
-        }
-      }
-    }while( 1 );
-  }
-
- search_success:
-  pIter->iLeafOffset = iOff + nNew;
-  if( pIter->iLeafOffset>n || nNew<1 ){
-    p->rc = FTS5_CORRUPT;
-    return;
-  }
-  pIter->iTermLeafOffset = pIter->iLeafOffset;
-  pIter->iTermLeafPgno = pIter->iLeafPgno;
-
-  fts5BufferSet(&p->rc, &pIter->term, nKeep, pTerm);
-  fts5BufferAppendBlob(&p->rc, &pIter->term, nNew, &a[iOff]);
-
-  if( iPgidx>=n ){
-    pIter->iEndofDoclist = pIter->pLeaf->nn+1;
-  }else{
-    int nExtra;
-    iPgidx += fts5GetVarint32(&a[iPgidx], nExtra);
-    pIter->iEndofDoclist = iTermOff + nExtra;
-  }
-  pIter->iPgidxOff = iPgidx;
-
-  fts5SegIterLoadRowid(p, pIter);
-  fts5SegIterLoadNPos(p, pIter);
-}
-
-static tdsqlite3_stmt *fts5IdxSelectStmt(Fts5Index *p){
-  if( p->pIdxSelect==0 ){
-    Fts5Config *pConfig = p->pConfig;
-    fts5IndexPrepareStmt(p, &p->pIdxSelect, tdsqlite3_mprintf(
-          "SELECT pgno FROM '%q'.'%q_idx' WHERE "
-          "segid=? AND term<=? ORDER BY term DESC LIMIT 1",
-          pConfig->zDb, pConfig->zName
-    ));
-  }
-  return p->pIdxSelect;
-}
-
-/*
-** Initialize the object pIter to point to term pTerm/nTerm within segment
-** pSeg. If there is no such term in the index, the iterator is set to EOF.
-**
-** If an error occurs, Fts5Index.rc is set to an appropriate error code. If 
-** an error has already occurred when this function is called, it is a no-op.
-*/
-static void fts5SegIterSeekInit(
-  Fts5Index *p,                   /* FTS5 backend */
-  const u8 *pTerm, int nTerm,     /* Term to seek to */
-  int flags,                      /* Mask of FTS5INDEX_XXX flags */
-  Fts5StructureSegment *pSeg,     /* Description of segment */
-  Fts5SegIter *pIter              /* Object to populate */
-){
-  int iPg = 1;
-  int bGe = (flags & FTS5INDEX_QUERY_SCAN);
-  int bDlidx = 0;                 /* True if there is a doclist-index */
-  tdsqlite3_stmt *pIdxSelect = 0;
-
-  assert( bGe==0 || (flags & FTS5INDEX_QUERY_DESC)==0 );
-  assert( pTerm && nTerm );
-  memset(pIter, 0, sizeof(*pIter));
-  pIter->pSeg = pSeg;
-
-  /* This block sets stack variable iPg to the leaf page number that may
-  ** contain term (pTerm/nTerm), if it is present in the segment. */
-  pIdxSelect = fts5IdxSelectStmt(p);
-  if( p->rc ) return;
-  tdsqlite3_bind_int(pIdxSelect, 1, pSeg->iSegid);
-  tdsqlite3_bind_blob(pIdxSelect, 2, pTerm, nTerm, SQLITE_STATIC);
-  if( SQLITE_ROW==tdsqlite3_step(pIdxSelect) ){
-    i64 val = tdsqlite3_column_int(pIdxSelect, 0);
-    iPg = (int)(val>>1);
-    bDlidx = (val & 0x0001);
-  }
-  p->rc = tdsqlite3_reset(pIdxSelect);
-  tdsqlite3_bind_null(pIdxSelect, 2);
-
-  if( iPg<pSeg->pgnoFirst ){
-    iPg = pSeg->pgnoFirst;
-    bDlidx = 0;
-  }
-
-  pIter->iLeafPgno = iPg - 1;
-  fts5SegIterNextPage(p, pIter);
-
-  if( pIter->pLeaf ){
-    fts5LeafSeek(p, bGe, pIter, pTerm, nTerm);
-  }
-
-  if( p->rc==SQLITE_OK && bGe==0 ){
-    pIter->flags |= FTS5_SEGITER_ONETERM;
-    if( pIter->pLeaf ){
-      if( flags & FTS5INDEX_QUERY_DESC ){
-        pIter->flags |= FTS5_SEGITER_REVERSE;
-      }
-      if( bDlidx ){
-        fts5SegIterLoadDlidx(p, pIter);
-      }
-      if( flags & FTS5INDEX_QUERY_DESC ){
-        fts5SegIterReverse(p, pIter);
-      }
-    }
-  }
-
-  fts5SegIterSetNext(p, pIter);
-
-  /* Either:
-  **
-  **   1) an error has occurred, or
-  **   2) the iterator points to EOF, or
-  **   3) the iterator points to an entry with term (pTerm/nTerm), or
-  **   4) the FTS5INDEX_QUERY_SCAN flag was set and the iterator points
-  **      to an entry with a term greater than or equal to (pTerm/nTerm).
-  */
-  assert_nc( p->rc!=SQLITE_OK                                       /* 1 */
-   || pIter->pLeaf==0                                               /* 2 */
-   || fts5BufferCompareBlob(&pIter->term, pTerm, nTerm)==0          /* 3 */
-   || (bGe && fts5BufferCompareBlob(&pIter->term, pTerm, nTerm)>0)  /* 4 */
-  );
-}
-
-/*
-** Initialize the object pIter to point to term pTerm/nTerm within the
-** in-memory hash table. If there is no such term in the hash-table, the 
-** iterator is set to EOF.
-**
-** If an error occurs, Fts5Index.rc is set to an appropriate error code. If 
-** an error has already occurred when this function is called, it is a no-op.
-*/
-static void fts5SegIterHashInit(
-  Fts5Index *p,                   /* FTS5 backend */
-  const u8 *pTerm, int nTerm,     /* Term to seek to */
-  int flags,                      /* Mask of FTS5INDEX_XXX flags */
-  Fts5SegIter *pIter              /* Object to populate */
-){
-  int nList = 0;
-  const u8 *z = 0;
-  int n = 0;
-  Fts5Data *pLeaf = 0;
-
-  assert( p->pHash );
-  assert( p->rc==SQLITE_OK );
-
-  if( pTerm==0 || (flags & FTS5INDEX_QUERY_SCAN) ){
-    const u8 *pList = 0;
-
-    p->rc = tdsqlite3Fts5HashScanInit(p->pHash, (const char*)pTerm, nTerm);
-    tdsqlite3Fts5HashScanEntry(p->pHash, (const char**)&z, &pList, &nList);
-    n = (z ? (int)strlen((const char*)z) : 0);
-    if( pList ){
-      pLeaf = fts5IdxMalloc(p, sizeof(Fts5Data));
-      if( pLeaf ){
-        pLeaf->p = (u8*)pList;
-      }
-    }
-  }else{
-    p->rc = tdsqlite3Fts5HashQuery(p->pHash, sizeof(Fts5Data), 
-        (const char*)pTerm, nTerm, (void**)&pLeaf, &nList
-    );
-    if( pLeaf ){
-      pLeaf->p = (u8*)&pLeaf[1];
-    }
-    z = pTerm;
-    n = nTerm;
-    pIter->flags |= FTS5_SEGITER_ONETERM;
-  }
-
-  if( pLeaf ){
-    tdsqlite3Fts5BufferSet(&p->rc, &pIter->term, n, z);
-    pLeaf->nn = pLeaf->szLeaf = nList;
-    pIter->pLeaf = pLeaf;
-    pIter->iLeafOffset = fts5GetVarint(pLeaf->p, (u64*)&pIter->iRowid);
-    pIter->iEndofDoclist = pLeaf->nn;
-
-    if( flags & FTS5INDEX_QUERY_DESC ){
-      pIter->flags |= FTS5_SEGITER_REVERSE;
-      fts5SegIterReverseInitPage(p, pIter);
-    }else{
-      fts5SegIterLoadNPos(p, pIter);
-    }
-  }
-
-  fts5SegIterSetNext(p, pIter);
-}
-
-/*
-** Zero the iterator passed as the only argument.
-*/
-static void fts5SegIterClear(Fts5SegIter *pIter){
-  fts5BufferFree(&pIter->term);
-  fts5DataRelease(pIter->pLeaf);
-  fts5DataRelease(pIter->pNextLeaf);
-  fts5DlidxIterFree(pIter->pDlidx);
-  tdsqlite3_free(pIter->aRowidOffset);
-  memset(pIter, 0, sizeof(Fts5SegIter));
-}
-
-#ifdef SQLITE_DEBUG
-
-/*
-** This function is used as part of the big assert() procedure implemented by
-** fts5AssertMultiIterSetup(). It ensures that the result currently stored
-** in *pRes is the correct result of comparing the current positions of the
-** two iterators.
-*/
-static void fts5AssertComparisonResult(
-  Fts5Iter *pIter, 
-  Fts5SegIter *p1,
-  Fts5SegIter *p2,
-  Fts5CResult *pRes
-){
-  int i1 = p1 - pIter->aSeg;
-  int i2 = p2 - pIter->aSeg;
-
-  if( p1->pLeaf || p2->pLeaf ){
-    if( p1->pLeaf==0 ){
-      assert( pRes->iFirst==i2 );
-    }else if( p2->pLeaf==0 ){
-      assert( pRes->iFirst==i1 );
-    }else{
-      int nMin = MIN(p1->term.n, p2->term.n);
-      int res = fts5Memcmp(p1->term.p, p2->term.p, nMin);
-      if( res==0 ) res = p1->term.n - p2->term.n;
-
-      if( res==0 ){
-        assert( pRes->bTermEq==1 );
-        assert( p1->iRowid!=p2->iRowid );
-        res = ((p1->iRowid > p2->iRowid)==pIter->bRev) ? -1 : 1;
-      }else{
-        assert( pRes->bTermEq==0 );
-      }
-
-      if( res<0 ){
-        assert( pRes->iFirst==i1 );
-      }else{
-        assert( pRes->iFirst==i2 );
-      }
-    }
-  }
-}
-
-/*
-** This function is a no-op unless SQLITE_DEBUG is defined when this module
-** is compiled. In that case, this function is essentially an assert() 
-** statement used to verify that the contents of the pIter->aFirst[] array
-** are correct.
-*/
-static void fts5AssertMultiIterSetup(Fts5Index *p, Fts5Iter *pIter){
-  if( p->rc==SQLITE_OK ){
-    Fts5SegIter *pFirst = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
-    int i;
-
-    assert( (pFirst->pLeaf==0)==pIter->base.bEof );
-
-    /* Check that pIter->iSwitchRowid is set correctly. */
-    for(i=0; i<pIter->nSeg; i++){
-      Fts5SegIter *p1 = &pIter->aSeg[i];
-      assert( p1==pFirst 
-           || p1->pLeaf==0 
-           || fts5BufferCompare(&pFirst->term, &p1->term) 
-           || p1->iRowid==pIter->iSwitchRowid
-           || (p1->iRowid<pIter->iSwitchRowid)==pIter->bRev
-      );
-    }
-
-    for(i=0; i<pIter->nSeg; i+=2){
-      Fts5SegIter *p1 = &pIter->aSeg[i];
-      Fts5SegIter *p2 = &pIter->aSeg[i+1];
-      Fts5CResult *pRes = &pIter->aFirst[(pIter->nSeg + i) / 2];
-      fts5AssertComparisonResult(pIter, p1, p2, pRes);
-    }
-
-    for(i=1; i<(pIter->nSeg / 2); i+=2){
-      Fts5SegIter *p1 = &pIter->aSeg[ pIter->aFirst[i*2].iFirst ];
-      Fts5SegIter *p2 = &pIter->aSeg[ pIter->aFirst[i*2+1].iFirst ];
-      Fts5CResult *pRes = &pIter->aFirst[i];
-      fts5AssertComparisonResult(pIter, p1, p2, pRes);
-    }
-  }
-}
-#else
-# define fts5AssertMultiIterSetup(x,y)
-#endif
-
-/*
-** Do the comparison necessary to populate pIter->aFirst[iOut].
-**
-** If the returned value is non-zero, then it is the index of an entry
-** in the pIter->aSeg[] array that is (a) not at EOF, and (b) pointing
-** to a key that is a duplicate of another, higher priority, 
-** segment-iterator in the pSeg->aSeg[] array.
-*/
-static int fts5MultiIterDoCompare(Fts5Iter *pIter, int iOut){
-  int i1;                         /* Index of left-hand Fts5SegIter */
-  int i2;                         /* Index of right-hand Fts5SegIter */
-  int iRes;
-  Fts5SegIter *p1;                /* Left-hand Fts5SegIter */
-  Fts5SegIter *p2;                /* Right-hand Fts5SegIter */
-  Fts5CResult *pRes = &pIter->aFirst[iOut];
-
-  assert( iOut<pIter->nSeg && iOut>0 );
-  assert( pIter->bRev==0 || pIter->bRev==1 );
-
-  if( iOut>=(pIter->nSeg/2) ){
-    i1 = (iOut - pIter->nSeg/2) * 2;
-    i2 = i1 + 1;
-  }else{
-    i1 = pIter->aFirst[iOut*2].iFirst;
-    i2 = pIter->aFirst[iOut*2+1].iFirst;
-  }
-  p1 = &pIter->aSeg[i1];
-  p2 = &pIter->aSeg[i2];
-
-  pRes->bTermEq = 0;
-  if( p1->pLeaf==0 ){           /* If p1 is at EOF */
-    iRes = i2;
-  }else if( p2->pLeaf==0 ){     /* If p2 is at EOF */
-    iRes = i1;
-  }else{
-    int res = fts5BufferCompare(&p1->term, &p2->term);
-    if( res==0 ){
-      assert_nc( i2>i1 );
-      assert_nc( i2!=0 );
-      pRes->bTermEq = 1;
-      if( p1->iRowid==p2->iRowid ){
-        p1->bDel = p2->bDel;
-        return i2;
-      }
-      res = ((p1->iRowid > p2->iRowid)==pIter->bRev) ? -1 : +1;
-    }
-    assert( res!=0 );
-    if( res<0 ){
-      iRes = i1;
-    }else{
-      iRes = i2;
-    }
-  }
-
-  pRes->iFirst = (u16)iRes;
-  return 0;
-}
-
-/*
-** Move the seg-iter so that it points to the first rowid on page iLeafPgno.
-** It is an error if leaf iLeafPgno does not exist or contains no rowids.
-*/
-static void fts5SegIterGotoPage(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5SegIter *pIter,             /* Iterator to advance */
-  int iLeafPgno
-){
-  assert( iLeafPgno>pIter->iLeafPgno );
-
-  if( iLeafPgno>pIter->pSeg->pgnoLast ){
-    p->rc = FTS5_CORRUPT;
-  }else{
-    fts5DataRelease(pIter->pNextLeaf);
-    pIter->pNextLeaf = 0;
-    pIter->iLeafPgno = iLeafPgno-1;
-    fts5SegIterNextPage(p, pIter);
-    assert( p->rc!=SQLITE_OK || pIter->iLeafPgno==iLeafPgno );
-
-    if( p->rc==SQLITE_OK ){
-      int iOff;
-      u8 *a = pIter->pLeaf->p;
-      int n = pIter->pLeaf->szLeaf;
-
-      iOff = fts5LeafFirstRowidOff(pIter->pLeaf);
-      if( iOff<4 || iOff>=n ){
-        p->rc = FTS5_CORRUPT;
-      }else{
-        iOff += fts5GetVarint(&a[iOff], (u64*)&pIter->iRowid);
-        pIter->iLeafOffset = iOff;
-        fts5SegIterLoadNPos(p, pIter);
-      }
-    }
-  }
-}
-
-/*
-** Advance the iterator passed as the second argument until it is at or 
-** past rowid iFrom. Regardless of the value of iFrom, the iterator is
-** always advanced at least once.
-*/
-static void fts5SegIterNextFrom(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5SegIter *pIter,             /* Iterator to advance */
-  i64 iMatch                      /* Advance iterator at least this far */
-){
-  int bRev = (pIter->flags & FTS5_SEGITER_REVERSE);
-  Fts5DlidxIter *pDlidx = pIter->pDlidx;
-  int iLeafPgno = pIter->iLeafPgno;
-  int bMove = 1;
-
-  assert( pIter->flags & FTS5_SEGITER_ONETERM );
-  assert( pIter->pDlidx );
-  assert( pIter->pLeaf );
-
-  if( bRev==0 ){
-    while( !fts5DlidxIterEof(p, pDlidx) && iMatch>fts5DlidxIterRowid(pDlidx) ){
-      iLeafPgno = fts5DlidxIterPgno(pDlidx);
-      fts5DlidxIterNext(p, pDlidx);
-    }
-    assert_nc( iLeafPgno>=pIter->iLeafPgno || p->rc );
-    if( iLeafPgno>pIter->iLeafPgno ){
-      fts5SegIterGotoPage(p, pIter, iLeafPgno);
-      bMove = 0;
-    }
-  }else{
-    assert( pIter->pNextLeaf==0 );
-    assert( iMatch<pIter->iRowid );
-    while( !fts5DlidxIterEof(p, pDlidx) && iMatch<fts5DlidxIterRowid(pDlidx) ){
-      fts5DlidxIterPrev(p, pDlidx);
-    }
-    iLeafPgno = fts5DlidxIterPgno(pDlidx);
-
-    assert( fts5DlidxIterEof(p, pDlidx) || iLeafPgno<=pIter->iLeafPgno );
-
-    if( iLeafPgno<pIter->iLeafPgno ){
-      pIter->iLeafPgno = iLeafPgno+1;
-      fts5SegIterReverseNewPage(p, pIter);
-      bMove = 0;
-    }
-  }
-
-  do{
-    if( bMove && p->rc==SQLITE_OK ) pIter->xNext(p, pIter, 0);
-    if( pIter->pLeaf==0 ) break;
-    if( bRev==0 && pIter->iRowid>=iMatch ) break;
-    if( bRev!=0 && pIter->iRowid<=iMatch ) break;
-    bMove = 1;
-  }while( p->rc==SQLITE_OK );
-}
-
-
-/*
-** Free the iterator object passed as the second argument.
-*/
-static void fts5MultiIterFree(Fts5Iter *pIter){
-  if( pIter ){
-    int i;
-    for(i=0; i<pIter->nSeg; i++){
-      fts5SegIterClear(&pIter->aSeg[i]);
-    }
-    fts5BufferFree(&pIter->poslist);
-    tdsqlite3_free(pIter);
-  }
-}
-
-static void fts5MultiIterAdvanced(
-  Fts5Index *p,                   /* FTS5 backend to iterate within */
-  Fts5Iter *pIter,                /* Iterator to update aFirst[] array for */
-  int iChanged,                   /* Index of sub-iterator just advanced */
-  int iMinset                     /* Minimum entry in aFirst[] to set */
-){
-  int i;
-  for(i=(pIter->nSeg+iChanged)/2; i>=iMinset && p->rc==SQLITE_OK; i=i/2){
-    int iEq;
-    if( (iEq = fts5MultiIterDoCompare(pIter, i)) ){
-      Fts5SegIter *pSeg = &pIter->aSeg[iEq];
-      assert( p->rc==SQLITE_OK );
-      pSeg->xNext(p, pSeg, 0);
-      i = pIter->nSeg + iEq;
-    }
-  }
-}
-
-/*
-** Sub-iterator iChanged of iterator pIter has just been advanced. It still
-** points to the same term though - just a different rowid. This function
-** attempts to update the contents of the pIter->aFirst[] accordingly.
-** If it does so successfully, 0 is returned. Otherwise 1.
-**
-** If non-zero is returned, the caller should call fts5MultiIterAdvanced()
-** on the iterator instead. That function does the same as this one, except
-** that it deals with more complicated cases as well.
-*/ 
-static int fts5MultiIterAdvanceRowid(
-  Fts5Iter *pIter,                /* Iterator to update aFirst[] array for */
-  int iChanged,                   /* Index of sub-iterator just advanced */
-  Fts5SegIter **ppFirst
-){
-  Fts5SegIter *pNew = &pIter->aSeg[iChanged];
-
-  if( pNew->iRowid==pIter->iSwitchRowid
-   || (pNew->iRowid<pIter->iSwitchRowid)==pIter->bRev
-  ){
-    int i;
-    Fts5SegIter *pOther = &pIter->aSeg[iChanged ^ 0x0001];
-    pIter->iSwitchRowid = pIter->bRev ? SMALLEST_INT64 : LARGEST_INT64;
-    for(i=(pIter->nSeg+iChanged)/2; 1; i=i/2){
-      Fts5CResult *pRes = &pIter->aFirst[i];
-
-      assert( pNew->pLeaf );
-      assert( pRes->bTermEq==0 || pOther->pLeaf );
-
-      if( pRes->bTermEq ){
-        if( pNew->iRowid==pOther->iRowid ){
-          return 1;
-        }else if( (pOther->iRowid>pNew->iRowid)==pIter->bRev ){
-          pIter->iSwitchRowid = pOther->iRowid;
-          pNew = pOther;
-        }else if( (pOther->iRowid>pIter->iSwitchRowid)==pIter->bRev ){
-          pIter->iSwitchRowid = pOther->iRowid;
-        }
-      }
-      pRes->iFirst = (u16)(pNew - pIter->aSeg);
-      if( i==1 ) break;
-
-      pOther = &pIter->aSeg[ pIter->aFirst[i ^ 0x0001].iFirst ];
-    }
-  }
-
-  *ppFirst = pNew;
-  return 0;
-}
-
-/*
-** Set the pIter->bEof variable based on the state of the sub-iterators.
-*/
-static void fts5MultiIterSetEof(Fts5Iter *pIter){
-  Fts5SegIter *pSeg = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
-  pIter->base.bEof = pSeg->pLeaf==0;
-  pIter->iSwitchRowid = pSeg->iRowid;
-}
-
-/*
-** Move the iterator to the next entry. 
-**
-** If an error occurs, an error code is left in Fts5Index.rc. It is not 
-** considered an error if the iterator reaches EOF, or if it is already at 
-** EOF when this function is called.
-*/
-static void fts5MultiIterNext(
-  Fts5Index *p, 
-  Fts5Iter *pIter,
-  int bFrom,                      /* True if argument iFrom is valid */
-  i64 iFrom                       /* Advance at least as far as this */
-){
-  int bUseFrom = bFrom;
-  assert( pIter->base.bEof==0 );
-  while( p->rc==SQLITE_OK ){
-    int iFirst = pIter->aFirst[1].iFirst;
-    int bNewTerm = 0;
-    Fts5SegIter *pSeg = &pIter->aSeg[iFirst];
-    assert( p->rc==SQLITE_OK );
-    if( bUseFrom && pSeg->pDlidx ){
-      fts5SegIterNextFrom(p, pSeg, iFrom);
-    }else{
-      pSeg->xNext(p, pSeg, &bNewTerm);
-    }
-
-    if( pSeg->pLeaf==0 || bNewTerm 
-     || fts5MultiIterAdvanceRowid(pIter, iFirst, &pSeg)
-    ){
-      fts5MultiIterAdvanced(p, pIter, iFirst, 1);
-      fts5MultiIterSetEof(pIter);
-      pSeg = &pIter->aSeg[pIter->aFirst[1].iFirst];
-      if( pSeg->pLeaf==0 ) return;
-    }
-
-    fts5AssertMultiIterSetup(p, pIter);
-    assert( pSeg==&pIter->aSeg[pIter->aFirst[1].iFirst] && pSeg->pLeaf );
-    if( pIter->bSkipEmpty==0 || pSeg->nPos ){
-      pIter->xSetOutputs(pIter, pSeg);
-      return;
-    }
-    bUseFrom = 0;
-  }
-}
-
-static void fts5MultiIterNext2(
-  Fts5Index *p, 
-  Fts5Iter *pIter,
-  int *pbNewTerm                  /* OUT: True if *might* be new term */
-){
-  assert( pIter->bSkipEmpty );
-  if( p->rc==SQLITE_OK ){
-    *pbNewTerm = 0;
-    do{
-      int iFirst = pIter->aFirst[1].iFirst;
-      Fts5SegIter *pSeg = &pIter->aSeg[iFirst];
-      int bNewTerm = 0;
-
-      assert( p->rc==SQLITE_OK );
-      pSeg->xNext(p, pSeg, &bNewTerm);
-      if( pSeg->pLeaf==0 || bNewTerm 
-       || fts5MultiIterAdvanceRowid(pIter, iFirst, &pSeg)
-      ){
-        fts5MultiIterAdvanced(p, pIter, iFirst, 1);
-        fts5MultiIterSetEof(pIter);
-        *pbNewTerm = 1;
-      }
-      fts5AssertMultiIterSetup(p, pIter);
-
-    }while( fts5MultiIterIsEmpty(p, pIter) );
-  }
-}
-
-static void fts5IterSetOutputs_Noop(Fts5Iter *pUnused1, Fts5SegIter *pUnused2){
-  UNUSED_PARAM2(pUnused1, pUnused2);
-}
-
-static Fts5Iter *fts5MultiIterAlloc(
-  Fts5Index *p,                   /* FTS5 backend to iterate within */
-  int nSeg
-){
-  Fts5Iter *pNew;
-  int nSlot;                      /* Power of two >= nSeg */
-
-  for(nSlot=2; nSlot<nSeg; nSlot=nSlot*2);
-  pNew = fts5IdxMalloc(p, 
-      sizeof(Fts5Iter) +                  /* pNew */
-      sizeof(Fts5SegIter) * (nSlot-1) +   /* pNew->aSeg[] */
-      sizeof(Fts5CResult) * nSlot         /* pNew->aFirst[] */
-  );
-  if( pNew ){
-    pNew->nSeg = nSlot;
-    pNew->aFirst = (Fts5CResult*)&pNew->aSeg[nSlot];
-    pNew->pIndex = p;
-    pNew->xSetOutputs = fts5IterSetOutputs_Noop;
-  }
-  return pNew;
-}
-
-static void fts5PoslistCallback(
-  Fts5Index *pUnused, 
-  void *pContext, 
-  const u8 *pChunk, int nChunk
-){
-  UNUSED_PARAM(pUnused);
-  assert_nc( nChunk>=0 );
-  if( nChunk>0 ){
-    fts5BufferSafeAppendBlob((Fts5Buffer*)pContext, pChunk, nChunk);
-  }
-}
-
-typedef struct PoslistCallbackCtx PoslistCallbackCtx;
-struct PoslistCallbackCtx {
-  Fts5Buffer *pBuf;               /* Append to this buffer */
-  Fts5Colset *pColset;            /* Restrict matches to this column */
-  int eState;                     /* See above */
-};
-
-typedef struct PoslistOffsetsCtx PoslistOffsetsCtx;
-struct PoslistOffsetsCtx {
-  Fts5Buffer *pBuf;               /* Append to this buffer */
-  Fts5Colset *pColset;            /* Restrict matches to this column */
-  int iRead;
-  int iWrite;
-};
-
-/*
-** TODO: Make this more efficient!
-*/
-static int fts5IndexColsetTest(Fts5Colset *pColset, int iCol){
-  int i;
-  for(i=0; i<pColset->nCol; i++){
-    if( pColset->aiCol[i]==iCol ) return 1;
-  }
-  return 0;
-}
-
-static void fts5PoslistOffsetsCallback(
-  Fts5Index *pUnused, 
-  void *pContext, 
-  const u8 *pChunk, int nChunk
-){
-  PoslistOffsetsCtx *pCtx = (PoslistOffsetsCtx*)pContext;
-  UNUSED_PARAM(pUnused);
-  assert_nc( nChunk>=0 );
-  if( nChunk>0 ){
-    int i = 0;
-    while( i<nChunk ){
-      int iVal;
-      i += fts5GetVarint32(&pChunk[i], iVal);
-      iVal += pCtx->iRead - 2;
-      pCtx->iRead = iVal;
-      if( fts5IndexColsetTest(pCtx->pColset, iVal) ){
-        fts5BufferSafeAppendVarint(pCtx->pBuf, iVal + 2 - pCtx->iWrite);
-        pCtx->iWrite = iVal;
-      }
-    }
-  }
-}
-
-static void fts5PoslistFilterCallback(
-  Fts5Index *pUnused,
-  void *pContext, 
-  const u8 *pChunk, int nChunk
-){
-  PoslistCallbackCtx *pCtx = (PoslistCallbackCtx*)pContext;
-  UNUSED_PARAM(pUnused);
-  assert_nc( nChunk>=0 );
-  if( nChunk>0 ){
-    /* Search through to find the first varint with value 1. This is the
-    ** start of the next columns hits. */
-    int i = 0;
-    int iStart = 0;
-
-    if( pCtx->eState==2 ){
-      int iCol;
-      fts5FastGetVarint32(pChunk, i, iCol);
-      if( fts5IndexColsetTest(pCtx->pColset, iCol) ){
-        pCtx->eState = 1;
-        fts5BufferSafeAppendVarint(pCtx->pBuf, 1);
-      }else{
-        pCtx->eState = 0;
-      }
-    }
-
-    do {
-      while( i<nChunk && pChunk[i]!=0x01 ){
-        while( pChunk[i] & 0x80 ) i++;
-        i++;
-      }
-      if( pCtx->eState ){
-        fts5BufferSafeAppendBlob(pCtx->pBuf, &pChunk[iStart], i-iStart);
-      }
-      if( i<nChunk ){
-        int iCol;
-        iStart = i;
-        i++;
-        if( i>=nChunk ){
-          pCtx->eState = 2;
-        }else{
-          fts5FastGetVarint32(pChunk, i, iCol);
-          pCtx->eState = fts5IndexColsetTest(pCtx->pColset, iCol);
-          if( pCtx->eState ){
-            fts5BufferSafeAppendBlob(pCtx->pBuf, &pChunk[iStart], i-iStart);
-            iStart = i;
-          }
-        }
-      }
-    }while( i<nChunk );
-  }
-}
-
-static void fts5ChunkIterate(
-  Fts5Index *p,                   /* Index object */
-  Fts5SegIter *pSeg,              /* Poslist of this iterator */
-  void *pCtx,                     /* Context pointer for xChunk callback */
-  void (*xChunk)(Fts5Index*, void*, const u8*, int)
-){
-  int nRem = pSeg->nPos;          /* Number of bytes still to come */
-  Fts5Data *pData = 0;
-  u8 *pChunk = &pSeg->pLeaf->p[pSeg->iLeafOffset];
-  int nChunk = MIN(nRem, pSeg->pLeaf->szLeaf - pSeg->iLeafOffset);
-  int pgno = pSeg->iLeafPgno;
-  int pgnoSave = 0;
-
-  /* This function does notmwork with detail=none databases. */
-  assert( p->pConfig->eDetail!=FTS5_DETAIL_NONE );
-
-  if( (pSeg->flags & FTS5_SEGITER_REVERSE)==0 ){
-    pgnoSave = pgno+1;
-  }
-
-  while( 1 ){
-    xChunk(p, pCtx, pChunk, nChunk);
-    nRem -= nChunk;
-    fts5DataRelease(pData);
-    if( nRem<=0 ){
-      break;
-    }else{
-      pgno++;
-      pData = fts5LeafRead(p, FTS5_SEGMENT_ROWID(pSeg->pSeg->iSegid, pgno));
-      if( pData==0 ) break;
-      pChunk = &pData->p[4];
-      nChunk = MIN(nRem, pData->szLeaf - 4);
-      if( pgno==pgnoSave ){
-        assert( pSeg->pNextLeaf==0 );
-        pSeg->pNextLeaf = pData;
-        pData = 0;
-      }
-    }
-  }
-}
-
-/*
-** Iterator pIter currently points to a valid entry (not EOF). This
-** function appends the position list data for the current entry to
-** buffer pBuf. It does not make a copy of the position-list size
-** field.
-*/
-static void fts5SegiterPoslist(
-  Fts5Index *p,
-  Fts5SegIter *pSeg,
-  Fts5Colset *pColset,
-  Fts5Buffer *pBuf
-){
-  if( 0==fts5BufferGrow(&p->rc, pBuf, pSeg->nPos+FTS5_DATA_ZERO_PADDING) ){
-    memset(&pBuf->p[pBuf->n+pSeg->nPos], 0, FTS5_DATA_ZERO_PADDING);
-    if( pColset==0 ){
-      fts5ChunkIterate(p, pSeg, (void*)pBuf, fts5PoslistCallback);
-    }else{
-      if( p->pConfig->eDetail==FTS5_DETAIL_FULL ){
-        PoslistCallbackCtx sCtx;
-        sCtx.pBuf = pBuf;
-        sCtx.pColset = pColset;
-        sCtx.eState = fts5IndexColsetTest(pColset, 0);
-        assert( sCtx.eState==0 || sCtx.eState==1 );
-        fts5ChunkIterate(p, pSeg, (void*)&sCtx, fts5PoslistFilterCallback);
-      }else{
-        PoslistOffsetsCtx sCtx;
-        memset(&sCtx, 0, sizeof(sCtx));
-        sCtx.pBuf = pBuf;
-        sCtx.pColset = pColset;
-        fts5ChunkIterate(p, pSeg, (void*)&sCtx, fts5PoslistOffsetsCallback);
-      }
-    }
-  }
-}
-
-/*
-** IN/OUT parameter (*pa) points to a position list n bytes in size. If
-** the position list contains entries for column iCol, then (*pa) is set
-** to point to the sub-position-list for that column and the number of
-** bytes in it returned. Or, if the argument position list does not
-** contain any entries for column iCol, return 0.
-*/
-static int fts5IndexExtractCol(
-  const u8 **pa,                  /* IN/OUT: Pointer to poslist */
-  int n,                          /* IN: Size of poslist in bytes */
-  int iCol                        /* Column to extract from poslist */
-){
-  int iCurrent = 0;               /* Anything before the first 0x01 is col 0 */
-  const u8 *p = *pa;
-  const u8 *pEnd = &p[n];         /* One byte past end of position list */
-
-  while( iCol>iCurrent ){
-    /* Advance pointer p until it points to pEnd or an 0x01 byte that is
-    ** not part of a varint. Note that it is not possible for a negative
-    ** or extremely large varint to occur within an uncorrupted position 
-    ** list. So the last byte of each varint may be assumed to have a clear
-    ** 0x80 bit.  */
-    while( *p!=0x01 ){
-      while( *p++ & 0x80 );
-      if( p>=pEnd ) return 0;
-    }
-    *pa = p++;
-    iCurrent = *p++;
-    if( iCurrent & 0x80 ){
-      p--;
-      p += fts5GetVarint32(p, iCurrent);
-    }
-  }
-  if( iCol!=iCurrent ) return 0;
-
-  /* Advance pointer p until it points to pEnd or an 0x01 byte that is
-  ** not part of a varint */
-  while( p<pEnd && *p!=0x01 ){
-    while( *p++ & 0x80 );
-  }
-
-  return p - (*pa);
-}
-
-static void fts5IndexExtractColset(
-  int *pRc,
-  Fts5Colset *pColset,            /* Colset to filter on */
-  const u8 *pPos, int nPos,       /* Position list */
-  Fts5Buffer *pBuf                /* Output buffer */
-){
-  if( *pRc==SQLITE_OK ){
-    int i;
-    fts5BufferZero(pBuf);
-    for(i=0; i<pColset->nCol; i++){
-      const u8 *pSub = pPos;
-      int nSub = fts5IndexExtractCol(&pSub, nPos, pColset->aiCol[i]);
-      if( nSub ){
-        fts5BufferAppendBlob(pRc, pBuf, nSub, pSub);
-      }
-    }
-  }
-}
-
-/*
-** xSetOutputs callback used by detail=none tables.
-*/
-static void fts5IterSetOutputs_None(Fts5Iter *pIter, Fts5SegIter *pSeg){
-  assert( pIter->pIndex->pConfig->eDetail==FTS5_DETAIL_NONE );
-  pIter->base.iRowid = pSeg->iRowid;
-  pIter->base.nData = pSeg->nPos;
-}
-
-/*
-** xSetOutputs callback used by detail=full and detail=col tables when no
-** column filters are specified.
-*/
-static void fts5IterSetOutputs_Nocolset(Fts5Iter *pIter, Fts5SegIter *pSeg){
-  pIter->base.iRowid = pSeg->iRowid;
-  pIter->base.nData = pSeg->nPos;
-
-  assert( pIter->pIndex->pConfig->eDetail!=FTS5_DETAIL_NONE );
-  assert( pIter->pColset==0 );
-
-  if( pSeg->iLeafOffset+pSeg->nPos<=pSeg->pLeaf->szLeaf ){
-    /* All data is stored on the current page. Populate the output 
-    ** variables to point into the body of the page object. */
-    pIter->base.pData = &pSeg->pLeaf->p[pSeg->iLeafOffset];
-  }else{
-    /* The data is distributed over two or more pages. Copy it into the
-    ** Fts5Iter.poslist buffer and then set the output pointer to point
-    ** to this buffer.  */
-    fts5BufferZero(&pIter->poslist);
-    fts5SegiterPoslist(pIter->pIndex, pSeg, 0, &pIter->poslist);
-    pIter->base.pData = pIter->poslist.p;
-  }
-}
-
-/*
-** xSetOutputs callback used when the Fts5Colset object has nCol==0 (match
-** against no columns at all).
-*/
-static void fts5IterSetOutputs_ZeroColset(Fts5Iter *pIter, Fts5SegIter *pSeg){
-  UNUSED_PARAM(pSeg);
-  pIter->base.nData = 0;
-}
-
-/*
-** xSetOutputs callback used by detail=col when there is a column filter
-** and there are 100 or more columns. Also called as a fallback from
-** fts5IterSetOutputs_Col100 if the column-list spans more than one page.
-*/
-static void fts5IterSetOutputs_Col(Fts5Iter *pIter, Fts5SegIter *pSeg){
-  fts5BufferZero(&pIter->poslist);
-  fts5SegiterPoslist(pIter->pIndex, pSeg, pIter->pColset, &pIter->poslist);
-  pIter->base.iRowid = pSeg->iRowid;
-  pIter->base.pData = pIter->poslist.p;
-  pIter->base.nData = pIter->poslist.n;
-}
-
-/*
-** xSetOutputs callback used when: 
-**
-**   * detail=col,
-**   * there is a column filter, and
-**   * the table contains 100 or fewer columns. 
-**
-** The last point is to ensure all column numbers are stored as 
-** single-byte varints.
-*/
-static void fts5IterSetOutputs_Col100(Fts5Iter *pIter, Fts5SegIter *pSeg){
-
-  assert( pIter->pIndex->pConfig->eDetail==FTS5_DETAIL_COLUMNS );
-  assert( pIter->pColset );
-
-  if( pSeg->iLeafOffset+pSeg->nPos>pSeg->pLeaf->szLeaf ){
-    fts5IterSetOutputs_Col(pIter, pSeg);
-  }else{
-    u8 *a = (u8*)&pSeg->pLeaf->p[pSeg->iLeafOffset];
-    u8 *pEnd = (u8*)&a[pSeg->nPos]; 
-    int iPrev = 0;
-    int *aiCol = pIter->pColset->aiCol;
-    int *aiColEnd = &aiCol[pIter->pColset->nCol];
-
-    u8 *aOut = pIter->poslist.p;
-    int iPrevOut = 0;
-
-    pIter->base.iRowid = pSeg->iRowid;
-
-    while( a<pEnd ){
-      iPrev += (int)a++[0] - 2;
-      while( *aiCol<iPrev ){
-        aiCol++;
-        if( aiCol==aiColEnd ) goto setoutputs_col_out;
-      }
-      if( *aiCol==iPrev ){
-        *aOut++ = (u8)((iPrev - iPrevOut) + 2);
-        iPrevOut = iPrev;
-      }
-    }
-
-setoutputs_col_out:
-    pIter->base.pData = pIter->poslist.p;
-    pIter->base.nData = aOut - pIter->poslist.p;
-  }
-}
-
-/*
-** xSetOutputs callback used by detail=full when there is a column filter.
-*/
-static void fts5IterSetOutputs_Full(Fts5Iter *pIter, Fts5SegIter *pSeg){
-  Fts5Colset *pColset = pIter->pColset;
-  pIter->base.iRowid = pSeg->iRowid;
-
-  assert( pIter->pIndex->pConfig->eDetail==FTS5_DETAIL_FULL );
-  assert( pColset );
-
-  if( pSeg->iLeafOffset+pSeg->nPos<=pSeg->pLeaf->szLeaf ){
-    /* All data is stored on the current page. Populate the output 
-    ** variables to point into the body of the page object. */
-    const u8 *a = &pSeg->pLeaf->p[pSeg->iLeafOffset];
-    if( pColset->nCol==1 ){
-      pIter->base.nData = fts5IndexExtractCol(&a, pSeg->nPos,pColset->aiCol[0]);
-      pIter->base.pData = a;
-    }else{
-      int *pRc = &pIter->pIndex->rc;
-      fts5BufferZero(&pIter->poslist);
-      fts5IndexExtractColset(pRc, pColset, a, pSeg->nPos, &pIter->poslist);
-      pIter->base.pData = pIter->poslist.p;
-      pIter->base.nData = pIter->poslist.n;
-    }
-  }else{
-    /* The data is distributed over two or more pages. Copy it into the
-    ** Fts5Iter.poslist buffer and then set the output pointer to point
-    ** to this buffer.  */
-    fts5BufferZero(&pIter->poslist);
-    fts5SegiterPoslist(pIter->pIndex, pSeg, pColset, &pIter->poslist);
-    pIter->base.pData = pIter->poslist.p;
-    pIter->base.nData = pIter->poslist.n;
-  }
-}
-
-static void fts5IterSetOutputCb(int *pRc, Fts5Iter *pIter){
-  if( *pRc==SQLITE_OK ){
-    Fts5Config *pConfig = pIter->pIndex->pConfig;
-    if( pConfig->eDetail==FTS5_DETAIL_NONE ){
-      pIter->xSetOutputs = fts5IterSetOutputs_None;
-    }
-
-    else if( pIter->pColset==0 ){
-      pIter->xSetOutputs = fts5IterSetOutputs_Nocolset;
-    }
-
-    else if( pIter->pColset->nCol==0 ){
-      pIter->xSetOutputs = fts5IterSetOutputs_ZeroColset;
-    }
-
-    else if( pConfig->eDetail==FTS5_DETAIL_FULL ){
-      pIter->xSetOutputs = fts5IterSetOutputs_Full;
-    }
-
-    else{
-      assert( pConfig->eDetail==FTS5_DETAIL_COLUMNS );
-      if( pConfig->nCol<=100 ){
-        pIter->xSetOutputs = fts5IterSetOutputs_Col100;
-        tdsqlite3Fts5BufferSize(pRc, &pIter->poslist, pConfig->nCol);
-      }else{
-        pIter->xSetOutputs = fts5IterSetOutputs_Col;
-      }
-    }
-  }
-}
-
-
-/*
-** Allocate a new Fts5Iter object.
-**
-** The new object will be used to iterate through data in structure pStruct.
-** If iLevel is -ve, then all data in all segments is merged. Or, if iLevel
-** is zero or greater, data from the first nSegment segments on level iLevel
-** is merged.
-**
-** The iterator initially points to the first term/rowid entry in the 
-** iterated data.
-*/
-static void fts5MultiIterNew(
-  Fts5Index *p,                   /* FTS5 backend to iterate within */
-  Fts5Structure *pStruct,         /* Structure of specific index */
-  int flags,                      /* FTS5INDEX_QUERY_XXX flags */
-  Fts5Colset *pColset,            /* Colset to filter on (or NULL) */
-  const u8 *pTerm, int nTerm,     /* Term to seek to (or NULL/0) */
-  int iLevel,                     /* Level to iterate (-1 for all) */
-  int nSegment,                   /* Number of segments to merge (iLevel>=0) */
-  Fts5Iter **ppOut                /* New object */
-){
-  int nSeg = 0;                   /* Number of segment-iters in use */
-  int iIter = 0;                  /* */
-  int iSeg;                       /* Used to iterate through segments */
-  Fts5StructureLevel *pLvl;
-  Fts5Iter *pNew;
-
-  assert( (pTerm==0 && nTerm==0) || iLevel<0 );
-
-  /* Allocate space for the new multi-seg-iterator. */
-  if( p->rc==SQLITE_OK ){
-    if( iLevel<0 ){
-      assert( pStruct->nSegment==fts5StructureCountSegments(pStruct) );
-      nSeg = pStruct->nSegment;
-      nSeg += (p->pHash ? 1 : 0);
-    }else{
-      nSeg = MIN(pStruct->aLevel[iLevel].nSeg, nSegment);
-    }
-  }
-  *ppOut = pNew = fts5MultiIterAlloc(p, nSeg);
-  if( pNew==0 ) return;
-  pNew->bRev = (0!=(flags & FTS5INDEX_QUERY_DESC));
-  pNew->bSkipEmpty = (0!=(flags & FTS5INDEX_QUERY_SKIPEMPTY));
-  pNew->pColset = pColset;
-  if( (flags & FTS5INDEX_QUERY_NOOUTPUT)==0 ){
-    fts5IterSetOutputCb(&p->rc, pNew);
-  }
-
-  /* Initialize each of the component segment iterators. */
-  if( p->rc==SQLITE_OK ){
-    if( iLevel<0 ){
-      Fts5StructureLevel *pEnd = &pStruct->aLevel[pStruct->nLevel];
-      if( p->pHash ){
-        /* Add a segment iterator for the current contents of the hash table. */
-        Fts5SegIter *pIter = &pNew->aSeg[iIter++];
-        fts5SegIterHashInit(p, pTerm, nTerm, flags, pIter);
-      }
-      for(pLvl=&pStruct->aLevel[0]; pLvl<pEnd; pLvl++){
-        for(iSeg=pLvl->nSeg-1; iSeg>=0; iSeg--){
-          Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg];
-          Fts5SegIter *pIter = &pNew->aSeg[iIter++];
-          if( pTerm==0 ){
-            fts5SegIterInit(p, pSeg, pIter);
-          }else{
-            fts5SegIterSeekInit(p, pTerm, nTerm, flags, pSeg, pIter);
-          }
-        }
-      }
-    }else{
-      pLvl = &pStruct->aLevel[iLevel];
-      for(iSeg=nSeg-1; iSeg>=0; iSeg--){
-        fts5SegIterInit(p, &pLvl->aSeg[iSeg], &pNew->aSeg[iIter++]);
-      }
-    }
-    assert( iIter==nSeg );
-  }
-
-  /* If the above was successful, each component iterators now points 
-  ** to the first entry in its segment. In this case initialize the 
-  ** aFirst[] array. Or, if an error has occurred, free the iterator
-  ** object and set the output variable to NULL.  */
-  if( p->rc==SQLITE_OK ){
-    for(iIter=pNew->nSeg-1; iIter>0; iIter--){
-      int iEq;
-      if( (iEq = fts5MultiIterDoCompare(pNew, iIter)) ){
-        Fts5SegIter *pSeg = &pNew->aSeg[iEq];
-        if( p->rc==SQLITE_OK ) pSeg->xNext(p, pSeg, 0);
-        fts5MultiIterAdvanced(p, pNew, iEq, iIter);
-      }
-    }
-    fts5MultiIterSetEof(pNew);
-    fts5AssertMultiIterSetup(p, pNew);
-
-    if( pNew->bSkipEmpty && fts5MultiIterIsEmpty(p, pNew) ){
-      fts5MultiIterNext(p, pNew, 0, 0);
-    }else if( pNew->base.bEof==0 ){
-      Fts5SegIter *pSeg = &pNew->aSeg[pNew->aFirst[1].iFirst];
-      pNew->xSetOutputs(pNew, pSeg);
-    }
-
-  }else{
-    fts5MultiIterFree(pNew);
-    *ppOut = 0;
-  }
-}
-
-/*
-** Create an Fts5Iter that iterates through the doclist provided
-** as the second argument.
-*/
-static void fts5MultiIterNew2(
-  Fts5Index *p,                   /* FTS5 backend to iterate within */
-  Fts5Data *pData,                /* Doclist to iterate through */
-  int bDesc,                      /* True for descending rowid order */
-  Fts5Iter **ppOut                /* New object */
-){
-  Fts5Iter *pNew;
-  pNew = fts5MultiIterAlloc(p, 2);
-  if( pNew ){
-    Fts5SegIter *pIter = &pNew->aSeg[1];
-
-    pIter->flags = FTS5_SEGITER_ONETERM;
-    if( pData->szLeaf>0 ){
-      pIter->pLeaf = pData;
-      pIter->iLeafOffset = fts5GetVarint(pData->p, (u64*)&pIter->iRowid);
-      pIter->iEndofDoclist = pData->nn;
-      pNew->aFirst[1].iFirst = 1;
-      if( bDesc ){
-        pNew->bRev = 1;
-        pIter->flags |= FTS5_SEGITER_REVERSE;
-        fts5SegIterReverseInitPage(p, pIter);
-      }else{
-        fts5SegIterLoadNPos(p, pIter);
-      }
-      pData = 0;
-    }else{
-      pNew->base.bEof = 1;
-    }
-    fts5SegIterSetNext(p, pIter);
-
-    *ppOut = pNew;
-  }
-
-  fts5DataRelease(pData);
-}
-
-/*
-** Return true if the iterator is at EOF or if an error has occurred. 
-** False otherwise.
-*/
-static int fts5MultiIterEof(Fts5Index *p, Fts5Iter *pIter){
-  assert( p->rc 
-      || (pIter->aSeg[ pIter->aFirst[1].iFirst ].pLeaf==0)==pIter->base.bEof 
-  );
-  return (p->rc || pIter->base.bEof);
-}
-
-/*
-** Return the rowid of the entry that the iterator currently points
-** to. If the iterator points to EOF when this function is called the
-** results are undefined.
-*/
-static i64 fts5MultiIterRowid(Fts5Iter *pIter){
-  assert( pIter->aSeg[ pIter->aFirst[1].iFirst ].pLeaf );
-  return pIter->aSeg[ pIter->aFirst[1].iFirst ].iRowid;
-}
-
-/*
-** Move the iterator to the next entry at or following iMatch.
-*/
-static void fts5MultiIterNextFrom(
-  Fts5Index *p, 
-  Fts5Iter *pIter, 
-  i64 iMatch
-){
-  while( 1 ){
-    i64 iRowid;
-    fts5MultiIterNext(p, pIter, 1, iMatch);
-    if( fts5MultiIterEof(p, pIter) ) break;
-    iRowid = fts5MultiIterRowid(pIter);
-    if( pIter->bRev==0 && iRowid>=iMatch ) break;
-    if( pIter->bRev!=0 && iRowid<=iMatch ) break;
-  }
-}
-
-/*
-** Return a pointer to a buffer containing the term associated with the 
-** entry that the iterator currently points to.
-*/
-static const u8 *fts5MultiIterTerm(Fts5Iter *pIter, int *pn){
-  Fts5SegIter *p = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
-  *pn = p->term.n;
-  return p->term.p;
-}
-
-/*
-** Allocate a new segment-id for the structure pStruct. The new segment
-** id must be between 1 and 65335 inclusive, and must not be used by 
-** any currently existing segment. If a free segment id cannot be found,
-** SQLITE_FULL is returned.
-**
-** If an error has already occurred, this function is a no-op. 0 is 
-** returned in this case.
-*/
-static int fts5AllocateSegid(Fts5Index *p, Fts5Structure *pStruct){
-  int iSegid = 0;
-
-  if( p->rc==SQLITE_OK ){
-    if( pStruct->nSegment>=FTS5_MAX_SEGMENT ){
-      p->rc = SQLITE_FULL;
-    }else{
-      /* FTS5_MAX_SEGMENT is currently defined as 2000. So the following
-      ** array is 63 elements, or 252 bytes, in size.  */
-      u32 aUsed[(FTS5_MAX_SEGMENT+31) / 32];
-      int iLvl, iSeg;
-      int i;
-      u32 mask;
-      memset(aUsed, 0, sizeof(aUsed));
-      for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
-        for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
-          int iId = pStruct->aLevel[iLvl].aSeg[iSeg].iSegid;
-          if( iId<=FTS5_MAX_SEGMENT && iId>0 ){
-            aUsed[(iId-1) / 32] |= (u32)1 << ((iId-1) % 32);
-          }
-        }
-      }
-
-      for(i=0; aUsed[i]==0xFFFFFFFF; i++);
-      mask = aUsed[i];
-      for(iSegid=0; mask & ((u32)1 << iSegid); iSegid++);
-      iSegid += 1 + i*32;
-
-#ifdef SQLITE_DEBUG
-      for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
-        for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
-          assert_nc( iSegid!=pStruct->aLevel[iLvl].aSeg[iSeg].iSegid );
-        }
-      }
-      assert_nc( iSegid>0 && iSegid<=FTS5_MAX_SEGMENT );
-
-      {
-        tdsqlite3_stmt *pIdxSelect = fts5IdxSelectStmt(p);
-        if( p->rc==SQLITE_OK ){
-          u8 aBlob[2] = {0xff, 0xff};
-          tdsqlite3_bind_int(pIdxSelect, 1, iSegid);
-          tdsqlite3_bind_blob(pIdxSelect, 2, aBlob, 2, SQLITE_STATIC);
-          assert_nc( tdsqlite3_step(pIdxSelect)!=SQLITE_ROW );
-          p->rc = tdsqlite3_reset(pIdxSelect);
-          tdsqlite3_bind_null(pIdxSelect, 2);
-        }
-      }
-#endif
-    }
-  }
-
-  return iSegid;
-}
-
-/*
-** Discard all data currently cached in the hash-tables.
-*/
-static void fts5IndexDiscardData(Fts5Index *p){
-  assert( p->pHash || p->nPendingData==0 );
-  if( p->pHash ){
-    tdsqlite3Fts5HashClear(p->pHash);
-    p->nPendingData = 0;
-  }
-}
-
-/*
-** Return the size of the prefix, in bytes, that buffer 
-** (pNew/<length-unknown>) shares with buffer (pOld/nOld).
-**
-** Buffer (pNew/<length-unknown>) is guaranteed to be greater 
-** than buffer (pOld/nOld).
-*/
-static int fts5PrefixCompress(int nOld, const u8 *pOld, const u8 *pNew){
-  int i;
-  for(i=0; i<nOld; i++){
-    if( pOld[i]!=pNew[i] ) break;
-  }
-  return i;
-}
-
-static void fts5WriteDlidxClear(
-  Fts5Index *p, 
-  Fts5SegWriter *pWriter,
-  int bFlush                      /* If true, write dlidx to disk */
-){
-  int i;
-  assert( bFlush==0 || (pWriter->nDlidx>0 && pWriter->aDlidx[0].buf.n>0) );
-  for(i=0; i<pWriter->nDlidx; i++){
-    Fts5DlidxWriter *pDlidx = &pWriter->aDlidx[i];
-    if( pDlidx->buf.n==0 ) break;
-    if( bFlush ){
-      assert( pDlidx->pgno!=0 );
-      fts5DataWrite(p, 
-          FTS5_DLIDX_ROWID(pWriter->iSegid, i, pDlidx->pgno),
-          pDlidx->buf.p, pDlidx->buf.n
-      );
-    }
-    tdsqlite3Fts5BufferZero(&pDlidx->buf);
-    pDlidx->bPrevValid = 0;
-  }
-}
-
-/*
-** Grow the pWriter->aDlidx[] array to at least nLvl elements in size.
-** Any new array elements are zeroed before returning.
-*/
-static int fts5WriteDlidxGrow(
-  Fts5Index *p,
-  Fts5SegWriter *pWriter,
-  int nLvl
-){
-  if( p->rc==SQLITE_OK && nLvl>=pWriter->nDlidx ){
-    Fts5DlidxWriter *aDlidx = (Fts5DlidxWriter*)tdsqlite3_realloc64(
-        pWriter->aDlidx, sizeof(Fts5DlidxWriter) * nLvl
-    );
-    if( aDlidx==0 ){
-      p->rc = SQLITE_NOMEM;
-    }else{
-      size_t nByte = sizeof(Fts5DlidxWriter) * (nLvl - pWriter->nDlidx);
-      memset(&aDlidx[pWriter->nDlidx], 0, nByte);
-      pWriter->aDlidx = aDlidx;
-      pWriter->nDlidx = nLvl;
-    }
-  }
-  return p->rc;
-}
-
-/*
-** If the current doclist-index accumulating in pWriter->aDlidx[] is large
-** enough, flush it to disk and return 1. Otherwise discard it and return
-** zero.
-*/
-static int fts5WriteFlushDlidx(Fts5Index *p, Fts5SegWriter *pWriter){
-  int bFlag = 0;
-
-  /* If there were FTS5_MIN_DLIDX_SIZE or more empty leaf pages written
-  ** to the database, also write the doclist-index to disk.  */
-  if( pWriter->aDlidx[0].buf.n>0 && pWriter->nEmpty>=FTS5_MIN_DLIDX_SIZE ){
-    bFlag = 1;
-  }
-  fts5WriteDlidxClear(p, pWriter, bFlag);
-  pWriter->nEmpty = 0;
-  return bFlag;
-}
-
-/*
-** This function is called whenever processing of the doclist for the 
-** last term on leaf page (pWriter->iBtPage) is completed. 
-**
-** The doclist-index for that term is currently stored in-memory within the
-** Fts5SegWriter.aDlidx[] array. If it is large enough, this function
-** writes it out to disk. Or, if it is too small to bother with, discards
-** it.
-**
-** Fts5SegWriter.btterm currently contains the first term on page iBtPage.
-*/
-static void fts5WriteFlushBtree(Fts5Index *p, Fts5SegWriter *pWriter){
-  int bFlag;
-
-  assert( pWriter->iBtPage || pWriter->nEmpty==0 );
-  if( pWriter->iBtPage==0 ) return;
-  bFlag = fts5WriteFlushDlidx(p, pWriter);
-
-  if( p->rc==SQLITE_OK ){
-    const char *z = (pWriter->btterm.n>0?(const char*)pWriter->btterm.p:"");
-    /* The following was already done in fts5WriteInit(): */
-    /* tdsqlite3_bind_int(p->pIdxWriter, 1, pWriter->iSegid); */
-    tdsqlite3_bind_blob(p->pIdxWriter, 2, z, pWriter->btterm.n, SQLITE_STATIC);
-    tdsqlite3_bind_int64(p->pIdxWriter, 3, bFlag + ((i64)pWriter->iBtPage<<1));
-    tdsqlite3_step(p->pIdxWriter);
-    p->rc = tdsqlite3_reset(p->pIdxWriter);
-    tdsqlite3_bind_null(p->pIdxWriter, 2);
-  }
-  pWriter->iBtPage = 0;
-}
-
-/*
-** This is called once for each leaf page except the first that contains
-** at least one term. Argument (nTerm/pTerm) is the split-key - a term that
-** is larger than all terms written to earlier leaves, and equal to or
-** smaller than the first term on the new leaf.
-**
-** If an error occurs, an error code is left in Fts5Index.rc. If an error
-** has already occurred when this function is called, it is a no-op.
-*/
-static void fts5WriteBtreeTerm(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5SegWriter *pWriter,         /* Writer object */
-  int nTerm, const u8 *pTerm      /* First term on new page */
-){
-  fts5WriteFlushBtree(p, pWriter);
-  if( p->rc==SQLITE_OK ){
-    fts5BufferSet(&p->rc, &pWriter->btterm, nTerm, pTerm);
-    pWriter->iBtPage = pWriter->writer.pgno;
-  }
-}
-
-/*
-** This function is called when flushing a leaf page that contains no
-** terms at all to disk.
-*/
-static void fts5WriteBtreeNoTerm(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5SegWriter *pWriter          /* Writer object */
-){
-  /* If there were no rowids on the leaf page either and the doclist-index
-  ** has already been started, append an 0x00 byte to it.  */
-  if( pWriter->bFirstRowidInPage && pWriter->aDlidx[0].buf.n>0 ){
-    Fts5DlidxWriter *pDlidx = &pWriter->aDlidx[0];
-    assert( pDlidx->bPrevValid );
-    tdsqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx->buf, 0);
-  }
-
-  /* Increment the "number of sequential leaves without a term" counter. */
-  pWriter->nEmpty++;
-}
-
-static i64 fts5DlidxExtractFirstRowid(Fts5Buffer *pBuf){
-  i64 iRowid;
-  int iOff;
-
-  iOff = 1 + fts5GetVarint(&pBuf->p[1], (u64*)&iRowid);
-  fts5GetVarint(&pBuf->p[iOff], (u64*)&iRowid);
-  return iRowid;
-}
-
-/*
-** Rowid iRowid has just been appended to the current leaf page. It is the
-** first on the page. This function appends an appropriate entry to the current
-** doclist-index.
-*/
-static void fts5WriteDlidxAppend(
-  Fts5Index *p, 
-  Fts5SegWriter *pWriter, 
-  i64 iRowid
-){
-  int i;
-  int bDone = 0;
-
-  for(i=0; p->rc==SQLITE_OK && bDone==0; i++){
-    i64 iVal;
-    Fts5DlidxWriter *pDlidx = &pWriter->aDlidx[i];
-
-    if( pDlidx->buf.n>=p->pConfig->pgsz ){
-      /* The current doclist-index page is full. Write it to disk and push
-      ** a copy of iRowid (which will become the first rowid on the next
-      ** doclist-index leaf page) up into the next level of the b-tree 
-      ** hierarchy. If the node being flushed is currently the root node,
-      ** also push its first rowid upwards. */
-      pDlidx->buf.p[0] = 0x01;    /* Not the root node */
-      fts5DataWrite(p, 
-          FTS5_DLIDX_ROWID(pWriter->iSegid, i, pDlidx->pgno),
-          pDlidx->buf.p, pDlidx->buf.n
-      );
-      fts5WriteDlidxGrow(p, pWriter, i+2);
-      pDlidx = &pWriter->aDlidx[i];
-      if( p->rc==SQLITE_OK && pDlidx[1].buf.n==0 ){
-        i64 iFirst = fts5DlidxExtractFirstRowid(&pDlidx->buf);
-
-        /* This was the root node. Push its first rowid up to the new root. */
-        pDlidx[1].pgno = pDlidx->pgno;
-        tdsqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx[1].buf, 0);
-        tdsqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx[1].buf, pDlidx->pgno);
-        tdsqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx[1].buf, iFirst);
-        pDlidx[1].bPrevValid = 1;
-        pDlidx[1].iPrev = iFirst;
-      }
-
-      tdsqlite3Fts5BufferZero(&pDlidx->buf);
-      pDlidx->bPrevValid = 0;
-      pDlidx->pgno++;
-    }else{
-      bDone = 1;
-    }
-
-    if( pDlidx->bPrevValid ){
-      iVal = iRowid - pDlidx->iPrev;
-    }else{
-      i64 iPgno = (i==0 ? pWriter->writer.pgno : pDlidx[-1].pgno);
-      assert( pDlidx->buf.n==0 );
-      tdsqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx->buf, !bDone);
-      tdsqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx->buf, iPgno);
-      iVal = iRowid;
-    }
-
-    tdsqlite3Fts5BufferAppendVarint(&p->rc, &pDlidx->buf, iVal);
-    pDlidx->bPrevValid = 1;
-    pDlidx->iPrev = iRowid;
-  }
-}
-
-static void fts5WriteFlushLeaf(Fts5Index *p, Fts5SegWriter *pWriter){
-  static const u8 zero[] = { 0x00, 0x00, 0x00, 0x00 };
-  Fts5PageWriter *pPage = &pWriter->writer;
-  i64 iRowid;
-
-  assert( (pPage->pgidx.n==0)==(pWriter->bFirstTermInPage) );
-
-  /* Set the szLeaf header field. */
-  assert( 0==fts5GetU16(&pPage->buf.p[2]) );
-  fts5PutU16(&pPage->buf.p[2], (u16)pPage->buf.n);
-
-  if( pWriter->bFirstTermInPage ){
-    /* No term was written to this page. */
-    assert( pPage->pgidx.n==0 );
-    fts5WriteBtreeNoTerm(p, pWriter);
-  }else{
-    /* Append the pgidx to the page buffer. Set the szLeaf header field. */
-    fts5BufferAppendBlob(&p->rc, &pPage->buf, pPage->pgidx.n, pPage->pgidx.p);
-  }
-
-  /* Write the page out to disk */
-  iRowid = FTS5_SEGMENT_ROWID(pWriter->iSegid, pPage->pgno);
-  fts5DataWrite(p, iRowid, pPage->buf.p, pPage->buf.n);
-
-  /* Initialize the next page. */
-  fts5BufferZero(&pPage->buf);
-  fts5BufferZero(&pPage->pgidx);
-  fts5BufferAppendBlob(&p->rc, &pPage->buf, 4, zero);
-  pPage->iPrevPgidx = 0;
-  pPage->pgno++;
-
-  /* Increase the leaves written counter */
-  pWriter->nLeafWritten++;
-
-  /* The new leaf holds no terms or rowids */
-  pWriter->bFirstTermInPage = 1;
-  pWriter->bFirstRowidInPage = 1;
-}
-
-/*
-** Append term pTerm/nTerm to the segment being written by the writer passed
-** as the second argument.
-**
-** If an error occurs, set the Fts5Index.rc error code. If an error has 
-** already occurred, this function is a no-op.
-*/
-static void fts5WriteAppendTerm(
-  Fts5Index *p, 
-  Fts5SegWriter *pWriter,
-  int nTerm, const u8 *pTerm 
-){
-  int nPrefix;                    /* Bytes of prefix compression for term */
-  Fts5PageWriter *pPage = &pWriter->writer;
-  Fts5Buffer *pPgidx = &pWriter->writer.pgidx;
-  int nMin = MIN(pPage->term.n, nTerm);
-
-  assert( p->rc==SQLITE_OK );
-  assert( pPage->buf.n>=4 );
-  assert( pPage->buf.n>4 || pWriter->bFirstTermInPage );
-
-  /* If the current leaf page is full, flush it to disk. */
-  if( (pPage->buf.n + pPgidx->n + nTerm + 2)>=p->pConfig->pgsz ){
-    if( pPage->buf.n>4 ){
-      fts5WriteFlushLeaf(p, pWriter);
-      if( p->rc!=SQLITE_OK ) return;
-    }
-    fts5BufferGrow(&p->rc, &pPage->buf, nTerm+FTS5_DATA_PADDING);
-  }
-  
-  /* TODO1: Updating pgidx here. */
-  pPgidx->n += tdsqlite3Fts5PutVarint(
-      &pPgidx->p[pPgidx->n], pPage->buf.n - pPage->iPrevPgidx
-  );
-  pPage->iPrevPgidx = pPage->buf.n;
-#if 0
-  fts5PutU16(&pPgidx->p[pPgidx->n], pPage->buf.n);
-  pPgidx->n += 2;
-#endif
-
-  if( pWriter->bFirstTermInPage ){
-    nPrefix = 0;
-    if( pPage->pgno!=1 ){
-      /* This is the first term on a leaf that is not the leftmost leaf in
-      ** the segment b-tree. In this case it is necessary to add a term to
-      ** the b-tree hierarchy that is (a) larger than the largest term 
-      ** already written to the segment and (b) smaller than or equal to
-      ** this term. In other words, a prefix of (pTerm/nTerm) that is one
-      ** byte longer than the longest prefix (pTerm/nTerm) shares with the
-      ** previous term. 
-      **
-      ** Usually, the previous term is available in pPage->term. The exception
-      ** is if this is the first term written in an incremental-merge step.
-      ** In this case the previous term is not available, so just write a
-      ** copy of (pTerm/nTerm) into the parent node. This is slightly
-      ** inefficient, but still correct.  */
-      int n = nTerm;
-      if( pPage->term.n ){
-        n = 1 + fts5PrefixCompress(nMin, pPage->term.p, pTerm);
-      }
-      fts5WriteBtreeTerm(p, pWriter, n, pTerm);
-      if( p->rc!=SQLITE_OK ) return;
-      pPage = &pWriter->writer;
-    }
-  }else{
-    nPrefix = fts5PrefixCompress(nMin, pPage->term.p, pTerm);
-    fts5BufferAppendVarint(&p->rc, &pPage->buf, nPrefix);
-  }
-
-  /* Append the number of bytes of new data, then the term data itself
-  ** to the page. */
-  fts5BufferAppendVarint(&p->rc, &pPage->buf, nTerm - nPrefix);
-  fts5BufferAppendBlob(&p->rc, &pPage->buf, nTerm - nPrefix, &pTerm[nPrefix]);
-
-  /* Update the Fts5PageWriter.term field. */
-  fts5BufferSet(&p->rc, &pPage->term, nTerm, pTerm);
-  pWriter->bFirstTermInPage = 0;
-
-  pWriter->bFirstRowidInPage = 0;
-  pWriter->bFirstRowidInDoclist = 1;
-
-  assert( p->rc || (pWriter->nDlidx>0 && pWriter->aDlidx[0].buf.n==0) );
-  pWriter->aDlidx[0].pgno = pPage->pgno;
-}
-
-/*
-** Append a rowid and position-list size field to the writers output. 
-*/
-static void fts5WriteAppendRowid(
-  Fts5Index *p, 
-  Fts5SegWriter *pWriter,
-  i64 iRowid
-){
-  if( p->rc==SQLITE_OK ){
-    Fts5PageWriter *pPage = &pWriter->writer;
-
-    if( (pPage->buf.n + pPage->pgidx.n)>=p->pConfig->pgsz ){
-      fts5WriteFlushLeaf(p, pWriter);
-    }
-
-    /* If this is to be the first rowid written to the page, set the 
-    ** rowid-pointer in the page-header. Also append a value to the dlidx
-    ** buffer, in case a doclist-index is required.  */
-    if( pWriter->bFirstRowidInPage ){
-      fts5PutU16(pPage->buf.p, (u16)pPage->buf.n);
-      fts5WriteDlidxAppend(p, pWriter, iRowid);
-    }
-
-    /* Write the rowid. */
-    if( pWriter->bFirstRowidInDoclist || pWriter->bFirstRowidInPage ){
-      fts5BufferAppendVarint(&p->rc, &pPage->buf, iRowid);
-    }else{
-      assert_nc( p->rc || iRowid>pWriter->iPrevRowid );
-      fts5BufferAppendVarint(&p->rc, &pPage->buf, iRowid - pWriter->iPrevRowid);
-    }
-    pWriter->iPrevRowid = iRowid;
-    pWriter->bFirstRowidInDoclist = 0;
-    pWriter->bFirstRowidInPage = 0;
-  }
-}
-
-static void fts5WriteAppendPoslistData(
-  Fts5Index *p, 
-  Fts5SegWriter *pWriter, 
-  const u8 *aData, 
-  int nData
-){
-  Fts5PageWriter *pPage = &pWriter->writer;
-  const u8 *a = aData;
-  int n = nData;
-  
-  assert( p->pConfig->pgsz>0 );
-  while( p->rc==SQLITE_OK 
-     && (pPage->buf.n + pPage->pgidx.n + n)>=p->pConfig->pgsz 
-  ){
-    int nReq = p->pConfig->pgsz - pPage->buf.n - pPage->pgidx.n;
-    int nCopy = 0;
-    while( nCopy<nReq ){
-      i64 dummy;
-      nCopy += fts5GetVarint(&a[nCopy], (u64*)&dummy);
-    }
-    fts5BufferAppendBlob(&p->rc, &pPage->buf, nCopy, a);
-    a += nCopy;
-    n -= nCopy;
-    fts5WriteFlushLeaf(p, pWriter);
-  }
-  if( n>0 ){
-    fts5BufferAppendBlob(&p->rc, &pPage->buf, n, a);
-  }
-}
-
-/*
-** Flush any data cached by the writer object to the database. Free any
-** allocations associated with the writer.
-*/
-static void fts5WriteFinish(
-  Fts5Index *p, 
-  Fts5SegWriter *pWriter,         /* Writer object */
-  int *pnLeaf                     /* OUT: Number of leaf pages in b-tree */
-){
-  int i;
-  Fts5PageWriter *pLeaf = &pWriter->writer;
-  if( p->rc==SQLITE_OK ){
-    assert( pLeaf->pgno>=1 );
-    if( pLeaf->buf.n>4 ){
-      fts5WriteFlushLeaf(p, pWriter);
-    }
-    *pnLeaf = pLeaf->pgno-1;
-    if( pLeaf->pgno>1 ){
-      fts5WriteFlushBtree(p, pWriter);
-    }
-  }
-  fts5BufferFree(&pLeaf->term);
-  fts5BufferFree(&pLeaf->buf);
-  fts5BufferFree(&pLeaf->pgidx);
-  fts5BufferFree(&pWriter->btterm);
-
-  for(i=0; i<pWriter->nDlidx; i++){
-    tdsqlite3Fts5BufferFree(&pWriter->aDlidx[i].buf);
-  }
-  tdsqlite3_free(pWriter->aDlidx);
-}
-
-static void fts5WriteInit(
-  Fts5Index *p, 
-  Fts5SegWriter *pWriter, 
-  int iSegid
-){
-  const int nBuffer = p->pConfig->pgsz + FTS5_DATA_PADDING;
-
-  memset(pWriter, 0, sizeof(Fts5SegWriter));
-  pWriter->iSegid = iSegid;
-
-  fts5WriteDlidxGrow(p, pWriter, 1);
-  pWriter->writer.pgno = 1;
-  pWriter->bFirstTermInPage = 1;
-  pWriter->iBtPage = 1;
-
-  assert( pWriter->writer.buf.n==0 );
-  assert( pWriter->writer.pgidx.n==0 );
-
-  /* Grow the two buffers to pgsz + padding bytes in size. */
-  tdsqlite3Fts5BufferSize(&p->rc, &pWriter->writer.pgidx, nBuffer);
-  tdsqlite3Fts5BufferSize(&p->rc, &pWriter->writer.buf, nBuffer);
-
-  if( p->pIdxWriter==0 ){
-    Fts5Config *pConfig = p->pConfig;
-    fts5IndexPrepareStmt(p, &p->pIdxWriter, tdsqlite3_mprintf(
-          "INSERT INTO '%q'.'%q_idx'(segid,term,pgno) VALUES(?,?,?)", 
-          pConfig->zDb, pConfig->zName
-    ));
-  }
-
-  if( p->rc==SQLITE_OK ){
-    /* Initialize the 4-byte leaf-page header to 0x00. */
-    memset(pWriter->writer.buf.p, 0, 4);
-    pWriter->writer.buf.n = 4;
-
-    /* Bind the current output segment id to the index-writer. This is an
-    ** optimization over binding the same value over and over as rows are
-    ** inserted into %_idx by the current writer.  */
-    tdsqlite3_bind_int(p->pIdxWriter, 1, pWriter->iSegid);
-  }
-}
-
-/*
-** Iterator pIter was used to iterate through the input segments of on an
-** incremental merge operation. This function is called if the incremental
-** merge step has finished but the input has not been completely exhausted.
-*/
-static void fts5TrimSegments(Fts5Index *p, Fts5Iter *pIter){
-  int i;
-  Fts5Buffer buf;
-  memset(&buf, 0, sizeof(Fts5Buffer));
-  for(i=0; i<pIter->nSeg && p->rc==SQLITE_OK; i++){
-    Fts5SegIter *pSeg = &pIter->aSeg[i];
-    if( pSeg->pSeg==0 ){
-      /* no-op */
-    }else if( pSeg->pLeaf==0 ){
-      /* All keys from this input segment have been transfered to the output.
-      ** Set both the first and last page-numbers to 0 to indicate that the
-      ** segment is now empty. */
-      pSeg->pSeg->pgnoLast = 0;
-      pSeg->pSeg->pgnoFirst = 0;
-    }else{
-      int iOff = pSeg->iTermLeafOffset;     /* Offset on new first leaf page */
-      i64 iLeafRowid;
-      Fts5Data *pData;
-      int iId = pSeg->pSeg->iSegid;
-      u8 aHdr[4] = {0x00, 0x00, 0x00, 0x00};
-
-      iLeafRowid = FTS5_SEGMENT_ROWID(iId, pSeg->iTermLeafPgno);
-      pData = fts5LeafRead(p, iLeafRowid);
-      if( pData ){
-        if( iOff>pData->szLeaf ){
-          /* This can occur if the pages that the segments occupy overlap - if
-          ** a single page has been assigned to more than one segment. In
-          ** this case a prior iteration of this loop may have corrupted the
-          ** segment currently being trimmed.  */
-          p->rc = FTS5_CORRUPT;
-        }else{
-          fts5BufferZero(&buf);
-          fts5BufferGrow(&p->rc, &buf, pData->nn);
-          fts5BufferAppendBlob(&p->rc, &buf, sizeof(aHdr), aHdr);
-          fts5BufferAppendVarint(&p->rc, &buf, pSeg->term.n);
-          fts5BufferAppendBlob(&p->rc, &buf, pSeg->term.n, pSeg->term.p);
-          fts5BufferAppendBlob(&p->rc, &buf, pData->szLeaf-iOff,&pData->p[iOff]);
-          if( p->rc==SQLITE_OK ){
-            /* Set the szLeaf field */
-            fts5PutU16(&buf.p[2], (u16)buf.n);
-          }
-
-          /* Set up the new page-index array */
-          fts5BufferAppendVarint(&p->rc, &buf, 4);
-          if( pSeg->iLeafPgno==pSeg->iTermLeafPgno 
-           && pSeg->iEndofDoclist<pData->szLeaf
-           && pSeg->iPgidxOff<=pData->nn
-          ){
-            int nDiff = pData->szLeaf - pSeg->iEndofDoclist;
-            fts5BufferAppendVarint(&p->rc, &buf, buf.n - 1 - nDiff - 4);
-            fts5BufferAppendBlob(&p->rc, &buf, 
-                pData->nn - pSeg->iPgidxOff, &pData->p[pSeg->iPgidxOff]
-            );
-          }
-
-          pSeg->pSeg->pgnoFirst = pSeg->iTermLeafPgno;
-          fts5DataDelete(p, FTS5_SEGMENT_ROWID(iId, 1), iLeafRowid);
-          fts5DataWrite(p, iLeafRowid, buf.p, buf.n);
-        }
-        fts5DataRelease(pData);
-      }
-    }
-  }
-  fts5BufferFree(&buf);
-}
-
-static void fts5MergeChunkCallback(
-  Fts5Index *p, 
-  void *pCtx, 
-  const u8 *pChunk, int nChunk
-){
-  Fts5SegWriter *pWriter = (Fts5SegWriter*)pCtx;
-  fts5WriteAppendPoslistData(p, pWriter, pChunk, nChunk);
-}
-
-/*
-**
-*/
-static void fts5IndexMergeLevel(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5Structure **ppStruct,       /* IN/OUT: Stucture of index */
-  int iLvl,                       /* Level to read input from */
-  int *pnRem                      /* Write up to this many output leaves */
-){
-  Fts5Structure *pStruct = *ppStruct;
-  Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl];
-  Fts5StructureLevel *pLvlOut;
-  Fts5Iter *pIter = 0;       /* Iterator to read input data */
-  int nRem = pnRem ? *pnRem : 0;  /* Output leaf pages left to write */
-  int nInput;                     /* Number of input segments */
-  Fts5SegWriter writer;           /* Writer object */
-  Fts5StructureSegment *pSeg;     /* Output segment */
-  Fts5Buffer term;
-  int bOldest;                    /* True if the output segment is the oldest */
-  int eDetail = p->pConfig->eDetail;
-  const int flags = FTS5INDEX_QUERY_NOOUTPUT;
-  int bTermWritten = 0;           /* True if current term already output */
-
-  assert( iLvl<pStruct->nLevel );
-  assert( pLvl->nMerge<=pLvl->nSeg );
-
-  memset(&writer, 0, sizeof(Fts5SegWriter));
-  memset(&term, 0, sizeof(Fts5Buffer));
-  if( pLvl->nMerge ){
-    pLvlOut = &pStruct->aLevel[iLvl+1];
-    assert( pLvlOut->nSeg>0 );
-    nInput = pLvl->nMerge;
-    pSeg = &pLvlOut->aSeg[pLvlOut->nSeg-1];
-
-    fts5WriteInit(p, &writer, pSeg->iSegid);
-    writer.writer.pgno = pSeg->pgnoLast+1;
-    writer.iBtPage = 0;
-  }else{
-    int iSegid = fts5AllocateSegid(p, pStruct);
-
-    /* Extend the Fts5Structure object as required to ensure the output
-    ** segment exists. */
-    if( iLvl==pStruct->nLevel-1 ){
-      fts5StructureAddLevel(&p->rc, ppStruct);
-      pStruct = *ppStruct;
-    }
-    fts5StructureExtendLevel(&p->rc, pStruct, iLvl+1, 1, 0);
-    if( p->rc ) return;
-    pLvl = &pStruct->aLevel[iLvl];
-    pLvlOut = &pStruct->aLevel[iLvl+1];
-
-    fts5WriteInit(p, &writer, iSegid);
-
-    /* Add the new segment to the output level */
-    pSeg = &pLvlOut->aSeg[pLvlOut->nSeg];
-    pLvlOut->nSeg++;
-    pSeg->pgnoFirst = 1;
-    pSeg->iSegid = iSegid;
-    pStruct->nSegment++;
-
-    /* Read input from all segments in the input level */
-    nInput = pLvl->nSeg;
-  }
-  bOldest = (pLvlOut->nSeg==1 && pStruct->nLevel==iLvl+2);
-
-  assert( iLvl>=0 );
-  for(fts5MultiIterNew(p, pStruct, flags, 0, 0, 0, iLvl, nInput, &pIter);
-      fts5MultiIterEof(p, pIter)==0;
-      fts5MultiIterNext(p, pIter, 0, 0)
-  ){
-    Fts5SegIter *pSegIter = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
-    int nPos;                     /* position-list size field value */
-    int nTerm;
-    const u8 *pTerm;
-
-    pTerm = fts5MultiIterTerm(pIter, &nTerm);
-    if( nTerm!=term.n || fts5Memcmp(pTerm, term.p, nTerm) ){
-      if( pnRem && writer.nLeafWritten>nRem ){
-        break;
-      }
-      fts5BufferSet(&p->rc, &term, nTerm, pTerm);
-      bTermWritten =0;
-    }
-
-    /* Check for key annihilation. */
-    if( pSegIter->nPos==0 && (bOldest || pSegIter->bDel==0) ) continue;
-
-    if( p->rc==SQLITE_OK && bTermWritten==0 ){
-      /* This is a new term. Append a term to the output segment. */
-      fts5WriteAppendTerm(p, &writer, nTerm, pTerm);
-      bTermWritten = 1;
-    }
-
-    /* Append the rowid to the output */
-    /* WRITEPOSLISTSIZE */
-    fts5WriteAppendRowid(p, &writer, fts5MultiIterRowid(pIter));
-
-    if( eDetail==FTS5_DETAIL_NONE ){
-      if( pSegIter->bDel ){
-        fts5BufferAppendVarint(&p->rc, &writer.writer.buf, 0);
-        if( pSegIter->nPos>0 ){
-          fts5BufferAppendVarint(&p->rc, &writer.writer.buf, 0);
-        }
-      }
-    }else{
-      /* Append the position-list data to the output */
-      nPos = pSegIter->nPos*2 + pSegIter->bDel;
-      fts5BufferAppendVarint(&p->rc, &writer.writer.buf, nPos);
-      fts5ChunkIterate(p, pSegIter, (void*)&writer, fts5MergeChunkCallback);
-    }
-  }
-
-  /* Flush the last leaf page to disk. Set the output segment b-tree height
-  ** and last leaf page number at the same time.  */
-  fts5WriteFinish(p, &writer, &pSeg->pgnoLast);
-
-  if( fts5MultiIterEof(p, pIter) ){
-    int i;
-
-    /* Remove the redundant segments from the %_data table */
-    for(i=0; i<nInput; i++){
-      fts5DataRemoveSegment(p, pLvl->aSeg[i].iSegid);
-    }
-
-    /* Remove the redundant segments from the input level */
-    if( pLvl->nSeg!=nInput ){
-      int nMove = (pLvl->nSeg - nInput) * sizeof(Fts5StructureSegment);
-      memmove(pLvl->aSeg, &pLvl->aSeg[nInput], nMove);
-    }
-    pStruct->nSegment -= nInput;
-    pLvl->nSeg -= nInput;
-    pLvl->nMerge = 0;
-    if( pSeg->pgnoLast==0 ){
-      pLvlOut->nSeg--;
-      pStruct->nSegment--;
-    }
-  }else{
-    assert( pSeg->pgnoLast>0 );
-    fts5TrimSegments(p, pIter);
-    pLvl->nMerge = nInput;
-  }
-
-  fts5MultiIterFree(pIter);
-  fts5BufferFree(&term);
-  if( pnRem ) *pnRem -= writer.nLeafWritten;
-}
-
-/*
-** Do up to nPg pages of automerge work on the index.
-**
-** Return true if any changes were actually made, or false otherwise.
-*/
-static int fts5IndexMerge(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5Structure **ppStruct,       /* IN/OUT: Current structure of index */
-  int nPg,                        /* Pages of work to do */
-  int nMin                        /* Minimum number of segments to merge */
-){
-  int nRem = nPg;
-  int bRet = 0;
-  Fts5Structure *pStruct = *ppStruct;
-  while( nRem>0 && p->rc==SQLITE_OK ){
-    int iLvl;                   /* To iterate through levels */
-    int iBestLvl = 0;           /* Level offering the most input segments */
-    int nBest = 0;              /* Number of input segments on best level */
-
-    /* Set iBestLvl to the level to read input segments from. */
-    assert( pStruct->nLevel>0 );
-    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
-      Fts5StructureLevel *pLvl = &pStruct->aLevel[iLvl];
-      if( pLvl->nMerge ){
-        if( pLvl->nMerge>nBest ){
-          iBestLvl = iLvl;
-          nBest = pLvl->nMerge;
-        }
-        break;
-      }
-      if( pLvl->nSeg>nBest ){
-        nBest = pLvl->nSeg;
-        iBestLvl = iLvl;
-      }
-    }
-
-    /* If nBest is still 0, then the index must be empty. */
-#ifdef SQLITE_DEBUG
-    for(iLvl=0; nBest==0 && iLvl<pStruct->nLevel; iLvl++){
-      assert( pStruct->aLevel[iLvl].nSeg==0 );
-    }
-#endif
-
-    if( nBest<nMin && pStruct->aLevel[iBestLvl].nMerge==0 ){
-      break;
-    }
-    bRet = 1;
-    fts5IndexMergeLevel(p, &pStruct, iBestLvl, &nRem);
-    if( p->rc==SQLITE_OK && pStruct->aLevel[iBestLvl].nMerge==0 ){
-      fts5StructurePromote(p, iBestLvl+1, pStruct);
-    }
-  }
-  *ppStruct = pStruct;
-  return bRet;
-}
-
-/*
-** A total of nLeaf leaf pages of data has just been flushed to a level-0
-** segment. This function updates the write-counter accordingly and, if
-** necessary, performs incremental merge work.
-**
-** If an error occurs, set the Fts5Index.rc error code. If an error has 
-** already occurred, this function is a no-op.
-*/
-static void fts5IndexAutomerge(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5Structure **ppStruct,       /* IN/OUT: Current structure of index */
-  int nLeaf                       /* Number of output leaves just written */
-){
-  if( p->rc==SQLITE_OK && p->pConfig->nAutomerge>0 ){
-    Fts5Structure *pStruct = *ppStruct;
-    u64 nWrite;                   /* Initial value of write-counter */
-    int nWork;                    /* Number of work-quanta to perform */
-    int nRem;                     /* Number of leaf pages left to write */
-
-    /* Update the write-counter. While doing so, set nWork. */
-    nWrite = pStruct->nWriteCounter;
-    nWork = (int)(((nWrite + nLeaf) / p->nWorkUnit) - (nWrite / p->nWorkUnit));
-    pStruct->nWriteCounter += nLeaf;
-    nRem = (int)(p->nWorkUnit * nWork * pStruct->nLevel);
-
-    fts5IndexMerge(p, ppStruct, nRem, p->pConfig->nAutomerge);
-  }
-}
-
-static void fts5IndexCrisismerge(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5Structure **ppStruct        /* IN/OUT: Current structure of index */
-){
-  const int nCrisis = p->pConfig->nCrisisMerge;
-  Fts5Structure *pStruct = *ppStruct;
-  int iLvl = 0;
-
-  assert( p->rc!=SQLITE_OK || pStruct->nLevel>0 );
-  while( p->rc==SQLITE_OK && pStruct->aLevel[iLvl].nSeg>=nCrisis ){
-    fts5IndexMergeLevel(p, &pStruct, iLvl, 0);
-    assert( p->rc!=SQLITE_OK || pStruct->nLevel>(iLvl+1) );
-    fts5StructurePromote(p, iLvl+1, pStruct);
-    iLvl++;
-  }
-  *ppStruct = pStruct;
-}
-
-static int fts5IndexReturn(Fts5Index *p){
-  int rc = p->rc;
-  p->rc = SQLITE_OK;
-  return rc;
-}
-
-typedef struct Fts5FlushCtx Fts5FlushCtx;
-struct Fts5FlushCtx {
-  Fts5Index *pIdx;
-  Fts5SegWriter writer; 
-};
-
-/*
-** Buffer aBuf[] contains a list of varints, all small enough to fit
-** in a 32-bit integer. Return the size of the largest prefix of this 
-** list nMax bytes or less in size.
-*/
-static int fts5PoslistPrefix(const u8 *aBuf, int nMax){
-  int ret;
-  u32 dummy;
-  ret = fts5GetVarint32(aBuf, dummy);
-  if( ret<nMax ){
-    while( 1 ){
-      int i = fts5GetVarint32(&aBuf[ret], dummy);
-      if( (ret + i) > nMax ) break;
-      ret += i;
-    }
-  }
-  return ret;
-}
-
-/*
-** Flush the contents of in-memory hash table iHash to a new level-0 
-** segment on disk. Also update the corresponding structure record.
-**
-** If an error occurs, set the Fts5Index.rc error code. If an error has 
-** already occurred, this function is a no-op.
-*/
-static void fts5FlushOneHash(Fts5Index *p){
-  Fts5Hash *pHash = p->pHash;
-  Fts5Structure *pStruct;
-  int iSegid;
-  int pgnoLast = 0;                 /* Last leaf page number in segment */
-
-  /* Obtain a reference to the index structure and allocate a new segment-id
-  ** for the new level-0 segment.  */
-  pStruct = fts5StructureRead(p);
-  iSegid = fts5AllocateSegid(p, pStruct);
-  fts5StructureInvalidate(p);
-
-  if( iSegid ){
-    const int pgsz = p->pConfig->pgsz;
-    int eDetail = p->pConfig->eDetail;
-    Fts5StructureSegment *pSeg;   /* New segment within pStruct */
-    Fts5Buffer *pBuf;             /* Buffer in which to assemble leaf page */
-    Fts5Buffer *pPgidx;           /* Buffer in which to assemble pgidx */
-
-    Fts5SegWriter writer;
-    fts5WriteInit(p, &writer, iSegid);
-
-    pBuf = &writer.writer.buf;
-    pPgidx = &writer.writer.pgidx;
-
-    /* fts5WriteInit() should have initialized the buffers to (most likely)
-    ** the maximum space required. */
-    assert( p->rc || pBuf->nSpace>=(pgsz + FTS5_DATA_PADDING) );
-    assert( p->rc || pPgidx->nSpace>=(pgsz + FTS5_DATA_PADDING) );
-
-    /* Begin scanning through hash table entries. This loop runs once for each
-    ** term/doclist currently stored within the hash table. */
-    if( p->rc==SQLITE_OK ){
-      p->rc = tdsqlite3Fts5HashScanInit(pHash, 0, 0);
-    }
-    while( p->rc==SQLITE_OK && 0==tdsqlite3Fts5HashScanEof(pHash) ){
-      const char *zTerm;          /* Buffer containing term */
-      const u8 *pDoclist;         /* Pointer to doclist for this term */
-      int nDoclist;               /* Size of doclist in bytes */
-
-      /* Write the term for this entry to disk. */
-      tdsqlite3Fts5HashScanEntry(pHash, &zTerm, &pDoclist, &nDoclist);
-      fts5WriteAppendTerm(p, &writer, (int)strlen(zTerm), (const u8*)zTerm);
-      if( p->rc!=SQLITE_OK ) break;
-
-      assert( writer.bFirstRowidInPage==0 );
-      if( pgsz>=(pBuf->n + pPgidx->n + nDoclist + 1) ){
-        /* The entire doclist will fit on the current leaf. */
-        fts5BufferSafeAppendBlob(pBuf, pDoclist, nDoclist);
-      }else{
-        i64 iRowid = 0;
-        i64 iDelta = 0;
-        int iOff = 0;
-
-        /* The entire doclist will not fit on this leaf. The following 
-        ** loop iterates through the poslists that make up the current 
-        ** doclist.  */
-        while( p->rc==SQLITE_OK && iOff<nDoclist ){
-          iOff += fts5GetVarint(&pDoclist[iOff], (u64*)&iDelta);
-          iRowid += iDelta;
-          
-          if( writer.bFirstRowidInPage ){
-            fts5PutU16(&pBuf->p[0], (u16)pBuf->n);   /* first rowid on page */
-            pBuf->n += tdsqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iRowid);
-            writer.bFirstRowidInPage = 0;
-            fts5WriteDlidxAppend(p, &writer, iRowid);
-            if( p->rc!=SQLITE_OK ) break;
-          }else{
-            pBuf->n += tdsqlite3Fts5PutVarint(&pBuf->p[pBuf->n], iDelta);
-          }
-          assert( pBuf->n<=pBuf->nSpace );
-
-          if( eDetail==FTS5_DETAIL_NONE ){
-            if( iOff<nDoclist && pDoclist[iOff]==0 ){
-              pBuf->p[pBuf->n++] = 0;
-              iOff++;
-              if( iOff<nDoclist && pDoclist[iOff]==0 ){
-                pBuf->p[pBuf->n++] = 0;
-                iOff++;
-              }
-            }
-            if( (pBuf->n + pPgidx->n)>=pgsz ){
-              fts5WriteFlushLeaf(p, &writer);
-            }
-          }else{
-            int bDummy;
-            int nPos;
-            int nCopy = fts5GetPoslistSize(&pDoclist[iOff], &nPos, &bDummy);
-            nCopy += nPos;
-            if( (pBuf->n + pPgidx->n + nCopy) <= pgsz ){
-              /* The entire poslist will fit on the current leaf. So copy
-              ** it in one go. */
-              fts5BufferSafeAppendBlob(pBuf, &pDoclist[iOff], nCopy);
-            }else{
-              /* The entire poslist will not fit on this leaf. So it needs
-              ** to be broken into sections. The only qualification being
-              ** that each varint must be stored contiguously.  */
-              const u8 *pPoslist = &pDoclist[iOff];
-              int iPos = 0;
-              while( p->rc==SQLITE_OK ){
-                int nSpace = pgsz - pBuf->n - pPgidx->n;
-                int n = 0;
-                if( (nCopy - iPos)<=nSpace ){
-                  n = nCopy - iPos;
-                }else{
-                  n = fts5PoslistPrefix(&pPoslist[iPos], nSpace);
-                }
-                assert( n>0 );
-                fts5BufferSafeAppendBlob(pBuf, &pPoslist[iPos], n);
-                iPos += n;
-                if( (pBuf->n + pPgidx->n)>=pgsz ){
-                  fts5WriteFlushLeaf(p, &writer);
-                }
-                if( iPos>=nCopy ) break;
-              }
-            }
-            iOff += nCopy;
-          }
-        }
-      }
-
-      /* TODO2: Doclist terminator written here. */
-      /* pBuf->p[pBuf->n++] = '\0'; */
-      assert( pBuf->n<=pBuf->nSpace );
-      if( p->rc==SQLITE_OK ) tdsqlite3Fts5HashScanNext(pHash);
-    }
-    tdsqlite3Fts5HashClear(pHash);
-    fts5WriteFinish(p, &writer, &pgnoLast);
-
-    /* Update the Fts5Structure. It is written back to the database by the
-    ** fts5StructureRelease() call below.  */
-    if( pStruct->nLevel==0 ){
-      fts5StructureAddLevel(&p->rc, &pStruct);
-    }
-    fts5StructureExtendLevel(&p->rc, pStruct, 0, 1, 0);
-    if( p->rc==SQLITE_OK ){
-      pSeg = &pStruct->aLevel[0].aSeg[ pStruct->aLevel[0].nSeg++ ];
-      pSeg->iSegid = iSegid;
-      pSeg->pgnoFirst = 1;
-      pSeg->pgnoLast = pgnoLast;
-      pStruct->nSegment++;
-    }
-    fts5StructurePromote(p, 0, pStruct);
-  }
-
-  fts5IndexAutomerge(p, &pStruct, pgnoLast);
-  fts5IndexCrisismerge(p, &pStruct);
-  fts5StructureWrite(p, pStruct);
-  fts5StructureRelease(pStruct);
-}
-
-/*
-** Flush any data stored in the in-memory hash tables to the database.
-*/
-static void fts5IndexFlush(Fts5Index *p){
-  /* Unless it is empty, flush the hash table to disk */
-  if( p->nPendingData ){
-    assert( p->pHash );
-    p->nPendingData = 0;
-    fts5FlushOneHash(p);
-  }
-}
-
-static Fts5Structure *fts5IndexOptimizeStruct(
-  Fts5Index *p, 
-  Fts5Structure *pStruct
-){
-  Fts5Structure *pNew = 0;
-  tdsqlite3_int64 nByte = sizeof(Fts5Structure);
-  int nSeg = pStruct->nSegment;
-  int i;
-
-  /* Figure out if this structure requires optimization. A structure does
-  ** not require optimization if either:
-  **
-  **  + it consists of fewer than two segments, or 
-  **  + all segments are on the same level, or
-  **  + all segments except one are currently inputs to a merge operation.
-  **
-  ** In the first case, return NULL. In the second, increment the ref-count
-  ** on *pStruct and return a copy of the pointer to it.
-  */
-  if( nSeg<2 ) return 0;
-  for(i=0; i<pStruct->nLevel; i++){
-    int nThis = pStruct->aLevel[i].nSeg;
-    if( nThis==nSeg || (nThis==nSeg-1 && pStruct->aLevel[i].nMerge==nThis) ){
-      fts5StructureRef(pStruct);
-      return pStruct;
-    }
-    assert( pStruct->aLevel[i].nMerge<=nThis );
-  }
-
-  nByte += (pStruct->nLevel+1) * sizeof(Fts5StructureLevel);
-  pNew = (Fts5Structure*)tdsqlite3Fts5MallocZero(&p->rc, nByte);
-
-  if( pNew ){
-    Fts5StructureLevel *pLvl;
-    nByte = nSeg * sizeof(Fts5StructureSegment);
-    pNew->nLevel = pStruct->nLevel+1;
-    pNew->nRef = 1;
-    pNew->nWriteCounter = pStruct->nWriteCounter;
-    pLvl = &pNew->aLevel[pStruct->nLevel];
-    pLvl->aSeg = (Fts5StructureSegment*)tdsqlite3Fts5MallocZero(&p->rc, nByte);
-    if( pLvl->aSeg ){
-      int iLvl, iSeg;
-      int iSegOut = 0;
-      /* Iterate through all segments, from oldest to newest. Add them to
-      ** the new Fts5Level object so that pLvl->aSeg[0] is the oldest
-      ** segment in the data structure.  */
-      for(iLvl=pStruct->nLevel-1; iLvl>=0; iLvl--){
-        for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
-          pLvl->aSeg[iSegOut] = pStruct->aLevel[iLvl].aSeg[iSeg];
-          iSegOut++;
-        }
-      }
-      pNew->nSegment = pLvl->nSeg = nSeg;
-    }else{
-      tdsqlite3_free(pNew);
-      pNew = 0;
-    }
-  }
-
-  return pNew;
-}
-
-static int tdsqlite3Fts5IndexOptimize(Fts5Index *p){
-  Fts5Structure *pStruct;
-  Fts5Structure *pNew = 0;
-
-  assert( p->rc==SQLITE_OK );
-  fts5IndexFlush(p);
-  pStruct = fts5StructureRead(p);
-  fts5StructureInvalidate(p);
-
-  if( pStruct ){
-    pNew = fts5IndexOptimizeStruct(p, pStruct);
-  }
-  fts5StructureRelease(pStruct);
-
-  assert( pNew==0 || pNew->nSegment>0 );
-  if( pNew ){
-    int iLvl;
-    for(iLvl=0; pNew->aLevel[iLvl].nSeg==0; iLvl++){}
-    while( p->rc==SQLITE_OK && pNew->aLevel[iLvl].nSeg>0 ){
-      int nRem = FTS5_OPT_WORK_UNIT;
-      fts5IndexMergeLevel(p, &pNew, iLvl, &nRem);
-    }
-
-    fts5StructureWrite(p, pNew);
-    fts5StructureRelease(pNew);
-  }
-
-  return fts5IndexReturn(p); 
-}
-
-/*
-** This is called to implement the special "VALUES('merge', $nMerge)"
-** INSERT command.
-*/
-static int tdsqlite3Fts5IndexMerge(Fts5Index *p, int nMerge){
-  Fts5Structure *pStruct = fts5StructureRead(p);
-  if( pStruct ){
-    int nMin = p->pConfig->nUsermerge;
-    fts5StructureInvalidate(p);
-    if( nMerge<0 ){
-      Fts5Structure *pNew = fts5IndexOptimizeStruct(p, pStruct);
-      fts5StructureRelease(pStruct);
-      pStruct = pNew;
-      nMin = 2;
-      nMerge = nMerge*-1;
-    }
-    if( pStruct && pStruct->nLevel ){
-      if( fts5IndexMerge(p, &pStruct, nMerge, nMin) ){
-        fts5StructureWrite(p, pStruct);
-      }
-    }
-    fts5StructureRelease(pStruct);
-  }
-  return fts5IndexReturn(p);
-}
-
-static void fts5AppendRowid(
-  Fts5Index *p,
-  i64 iDelta,
-  Fts5Iter *pUnused,
-  Fts5Buffer *pBuf
-){
-  UNUSED_PARAM(pUnused);
-  fts5BufferAppendVarint(&p->rc, pBuf, iDelta);
-}
-
-static void fts5AppendPoslist(
-  Fts5Index *p,
-  i64 iDelta,
-  Fts5Iter *pMulti,
-  Fts5Buffer *pBuf
-){
-  int nData = pMulti->base.nData;
-  int nByte = nData + 9 + 9 + FTS5_DATA_ZERO_PADDING;
-  assert( nData>0 );
-  if( p->rc==SQLITE_OK && 0==fts5BufferGrow(&p->rc, pBuf, nByte) ){
-    fts5BufferSafeAppendVarint(pBuf, iDelta);
-    fts5BufferSafeAppendVarint(pBuf, nData*2);
-    fts5BufferSafeAppendBlob(pBuf, pMulti->base.pData, nData);
-    memset(&pBuf->p[pBuf->n], 0, FTS5_DATA_ZERO_PADDING);
-  }
-}
-
-
-static void fts5DoclistIterNext(Fts5DoclistIter *pIter){
-  u8 *p = pIter->aPoslist + pIter->nSize + pIter->nPoslist;
-
-  assert( pIter->aPoslist );
-  if( p>=pIter->aEof ){
-    pIter->aPoslist = 0;
-  }else{
-    i64 iDelta;
-
-    p += fts5GetVarint(p, (u64*)&iDelta);
-    pIter->iRowid += iDelta;
-
-    /* Read position list size */
-    if( p[0] & 0x80 ){
-      int nPos;
-      pIter->nSize = fts5GetVarint32(p, nPos);
-      pIter->nPoslist = (nPos>>1);
-    }else{
-      pIter->nPoslist = ((int)(p[0])) >> 1;
-      pIter->nSize = 1;
-    }
-
-    pIter->aPoslist = p;
-  }
-}
-
-static void fts5DoclistIterInit(
-  Fts5Buffer *pBuf, 
-  Fts5DoclistIter *pIter
-){
-  memset(pIter, 0, sizeof(*pIter));
-  pIter->aPoslist = pBuf->p;
-  pIter->aEof = &pBuf->p[pBuf->n];
-  fts5DoclistIterNext(pIter);
-}
-
-#if 0
-/*
-** Append a doclist to buffer pBuf.
-**
-** This function assumes that space within the buffer has already been
-** allocated.
-*/
-static void fts5MergeAppendDocid(
-  Fts5Buffer *pBuf,               /* Buffer to write to */
-  i64 *piLastRowid,               /* IN/OUT: Previous rowid written (if any) */
-  i64 iRowid                      /* Rowid to append */
-){
-  assert( pBuf->n!=0 || (*piLastRowid)==0 );
-  fts5BufferSafeAppendVarint(pBuf, iRowid - *piLastRowid);
-  *piLastRowid = iRowid;
-}
-#endif
-
-#define fts5MergeAppendDocid(pBuf, iLastRowid, iRowid) {       \
-  assert( (pBuf)->n!=0 || (iLastRowid)==0 );                   \
-  fts5BufferSafeAppendVarint((pBuf), (iRowid) - (iLastRowid)); \
-  (iLastRowid) = (iRowid);                                     \
-}
-
-/*
-** Swap the contents of buffer *p1 with that of *p2.
-*/
-static void fts5BufferSwap(Fts5Buffer *p1, Fts5Buffer *p2){
-  Fts5Buffer tmp = *p1;
-  *p1 = *p2;
-  *p2 = tmp;
-}
-
-static void fts5NextRowid(Fts5Buffer *pBuf, int *piOff, i64 *piRowid){
-  int i = *piOff;
-  if( i>=pBuf->n ){
-    *piOff = -1;
-  }else{
-    u64 iVal;
-    *piOff = i + tdsqlite3Fts5GetVarint(&pBuf->p[i], &iVal);
-    *piRowid += iVal;
-  }
-}
-
-/*
-** This is the equivalent of fts5MergePrefixLists() for detail=none mode.
-** In this case the buffers consist of a delta-encoded list of rowids only.
-*/
-static void fts5MergeRowidLists(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5Buffer *p1,                 /* First list to merge */
-  Fts5Buffer *p2                  /* Second list to merge */
-){
-  int i1 = 0;
-  int i2 = 0;
-  i64 iRowid1 = 0;
-  i64 iRowid2 = 0;
-  i64 iOut = 0;
-
-  Fts5Buffer out;
-  memset(&out, 0, sizeof(out));
-  tdsqlite3Fts5BufferSize(&p->rc, &out, p1->n + p2->n);
-  if( p->rc ) return;
-
-  fts5NextRowid(p1, &i1, &iRowid1);
-  fts5NextRowid(p2, &i2, &iRowid2);
-  while( i1>=0 || i2>=0 ){
-    if( i1>=0 && (i2<0 || iRowid1<iRowid2) ){
-      assert( iOut==0 || iRowid1>iOut );
-      fts5BufferSafeAppendVarint(&out, iRowid1 - iOut);
-      iOut = iRowid1;
-      fts5NextRowid(p1, &i1, &iRowid1);
-    }else{
-      assert( iOut==0 || iRowid2>iOut );
-      fts5BufferSafeAppendVarint(&out, iRowid2 - iOut);
-      iOut = iRowid2;
-      if( i1>=0 && iRowid1==iRowid2 ){
-        fts5NextRowid(p1, &i1, &iRowid1);
-      }
-      fts5NextRowid(p2, &i2, &iRowid2);
-    }
-  }
-
-  fts5BufferSwap(&out, p1);
-  fts5BufferFree(&out);
-}
-
-/*
-** Buffers p1 and p2 contain doclists. This function merges the content
-** of the two doclists together and sets buffer p1 to the result before
-** returning.
-**
-** If an error occurs, an error code is left in p->rc. If an error has
-** already occurred, this function is a no-op.
-*/
-static void fts5MergePrefixLists(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5Buffer *p1,                 /* First list to merge */
-  Fts5Buffer *p2                  /* Second list to merge */
-){
-  if( p2->n ){
-    i64 iLastRowid = 0;
-    Fts5DoclistIter i1;
-    Fts5DoclistIter i2;
-    Fts5Buffer out = {0, 0, 0};
-    Fts5Buffer tmp = {0, 0, 0};
-
-    /* The maximum size of the output is equal to the sum of the two 
-    ** input sizes + 1 varint (9 bytes). The extra varint is because if the
-    ** first rowid in one input is a large negative number, and the first in
-    ** the other a non-negative number, the delta for the non-negative
-    ** number will be larger on disk than the literal integer value
-    ** was.  
-    **
-    ** Or, if the input position-lists are corrupt, then the output might
-    ** include up to 2 extra 10-byte positions created by interpreting -1
-    ** (the value PoslistNext64() uses for EOF) as a position and appending
-    ** it to the output. This can happen at most once for each input 
-    ** position-list, hence two 10 byte paddings.  */
-    if( tdsqlite3Fts5BufferSize(&p->rc, &out, p1->n + p2->n + 9+10+10) ) return;
-    fts5DoclistIterInit(p1, &i1);
-    fts5DoclistIterInit(p2, &i2);
-
-    while( 1 ){
-      if( i1.iRowid<i2.iRowid ){
-        /* Copy entry from i1 */
-        fts5MergeAppendDocid(&out, iLastRowid, i1.iRowid);
-        fts5BufferSafeAppendBlob(&out, i1.aPoslist, i1.nPoslist+i1.nSize);
-        fts5DoclistIterNext(&i1);
-        if( i1.aPoslist==0 ) break;
-        assert( out.n<=((i1.aPoslist-p1->p) + (i2.aPoslist-p2->p)+9+10+10) );
-      }
-      else if( i2.iRowid!=i1.iRowid ){
-        /* Copy entry from i2 */
-        fts5MergeAppendDocid(&out, iLastRowid, i2.iRowid);
-        fts5BufferSafeAppendBlob(&out, i2.aPoslist, i2.nPoslist+i2.nSize);
-        fts5DoclistIterNext(&i2);
-        if( i2.aPoslist==0 ) break;
-        assert( out.n<=((i1.aPoslist-p1->p) + (i2.aPoslist-p2->p)+9+10+10) );
-      }
-      else{
-        /* Merge the two position lists. */ 
-        i64 iPos1 = 0;
-        i64 iPos2 = 0;
-        int iOff1 = 0;
-        int iOff2 = 0;
-        u8 *a1 = &i1.aPoslist[i1.nSize];
-        u8 *a2 = &i2.aPoslist[i2.nSize];
-        int nCopy;
-        u8 *aCopy;
-
-        i64 iPrev = 0;
-        Fts5PoslistWriter writer;
-        memset(&writer, 0, sizeof(writer));
-
-        /* See the earlier comment in this function for an explanation of why
-        ** corrupt input position lists might cause the output to consume
-        ** at most 20 bytes of unexpected space. */
-        fts5MergeAppendDocid(&out, iLastRowid, i2.iRowid);
-        fts5BufferZero(&tmp);
-        tdsqlite3Fts5BufferSize(&p->rc, &tmp, i1.nPoslist + i2.nPoslist + 10 + 10);
-        if( p->rc ) break;
-
-        tdsqlite3Fts5PoslistNext64(a1, i1.nPoslist, &iOff1, &iPos1);
-        tdsqlite3Fts5PoslistNext64(a2, i2.nPoslist, &iOff2, &iPos2);
-        assert_nc( iPos1>=0 && iPos2>=0 );
-
-        if( iPos1<iPos2 ){
-          tdsqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, iPos1);
-          tdsqlite3Fts5PoslistNext64(a1, i1.nPoslist, &iOff1, &iPos1);
-        }else{
-          tdsqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, iPos2);
-          tdsqlite3Fts5PoslistNext64(a2, i2.nPoslist, &iOff2, &iPos2);
-        }
-        if( iPos1>=0 && iPos2>=0 ){
-          while( 1 ){
-            if( iPos1<iPos2 ){
-              if( iPos1!=iPrev ){
-                tdsqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, iPos1);
-              }
-              tdsqlite3Fts5PoslistNext64(a1, i1.nPoslist, &iOff1, &iPos1);
-              if( iPos1<0 ) break;
-            }else{
-              assert_nc( iPos2!=iPrev );
-              tdsqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, iPos2);
-              tdsqlite3Fts5PoslistNext64(a2, i2.nPoslist, &iOff2, &iPos2);
-              if( iPos2<0 ) break;
-            }
-          }
-        }
-
-        if( iPos1>=0 ){
-          if( iPos1!=iPrev ){
-            tdsqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, iPos1);
-          }
-          aCopy = &a1[iOff1];
-          nCopy = i1.nPoslist - iOff1;
-        }else{
-          assert_nc( iPos2>=0 && iPos2!=iPrev );
-          tdsqlite3Fts5PoslistSafeAppend(&tmp, &iPrev, iPos2);
-          aCopy = &a2[iOff2];
-          nCopy = i2.nPoslist - iOff2;
-        }
-        if( nCopy>0 ){
-          fts5BufferSafeAppendBlob(&tmp, aCopy, nCopy);
-        }
-
-        /* WRITEPOSLISTSIZE */
-        assert_nc( tmp.n<=i1.nPoslist+i2.nPoslist );
-        assert( tmp.n<=i1.nPoslist+i2.nPoslist+10+10 );
-        if( tmp.n>i1.nPoslist+i2.nPoslist ){
-          if( p->rc==SQLITE_OK ) p->rc = FTS5_CORRUPT;
-          break;
-        }
-        fts5BufferSafeAppendVarint(&out, tmp.n * 2);
-        fts5BufferSafeAppendBlob(&out, tmp.p, tmp.n);
-        fts5DoclistIterNext(&i1);
-        fts5DoclistIterNext(&i2);
-        assert_nc( out.n<=(p1->n+p2->n+9) );
-        if( i1.aPoslist==0 || i2.aPoslist==0 ) break;
-        assert( out.n<=((i1.aPoslist-p1->p) + (i2.aPoslist-p2->p)+9+10+10) );
-      }
-    }
-
-    if( i1.aPoslist ){
-      fts5MergeAppendDocid(&out, iLastRowid, i1.iRowid);
-      fts5BufferSafeAppendBlob(&out, i1.aPoslist, i1.aEof - i1.aPoslist);
-    }
-    else if( i2.aPoslist ){
-      fts5MergeAppendDocid(&out, iLastRowid, i2.iRowid);
-      fts5BufferSafeAppendBlob(&out, i2.aPoslist, i2.aEof - i2.aPoslist);
-    }
-    assert_nc( out.n<=(p1->n+p2->n+9) );
-
-    fts5BufferSet(&p->rc, p1, out.n, out.p);
-    fts5BufferFree(&tmp);
-    fts5BufferFree(&out);
-  }
-}
-
-static void fts5SetupPrefixIter(
-  Fts5Index *p,                   /* Index to read from */
-  int bDesc,                      /* True for "ORDER BY rowid DESC" */
-  const u8 *pToken,               /* Buffer containing prefix to match */
-  int nToken,                     /* Size of buffer pToken in bytes */
-  Fts5Colset *pColset,            /* Restrict matches to these columns */
-  Fts5Iter **ppIter          /* OUT: New iterator */
-){
-  Fts5Structure *pStruct;
-  Fts5Buffer *aBuf;
-  const int nBuf = 32;
-
-  void (*xMerge)(Fts5Index*, Fts5Buffer*, Fts5Buffer*);
-  void (*xAppend)(Fts5Index*, i64, Fts5Iter*, Fts5Buffer*);
-  if( p->pConfig->eDetail==FTS5_DETAIL_NONE ){
-    xMerge = fts5MergeRowidLists;
-    xAppend = fts5AppendRowid;
-  }else{
-    xMerge = fts5MergePrefixLists;
-    xAppend = fts5AppendPoslist;
-  }
-
-  aBuf = (Fts5Buffer*)fts5IdxMalloc(p, sizeof(Fts5Buffer)*nBuf);
-  pStruct = fts5StructureRead(p);
-
-  if( aBuf && pStruct ){
-    const int flags = FTS5INDEX_QUERY_SCAN 
-                    | FTS5INDEX_QUERY_SKIPEMPTY 
-                    | FTS5INDEX_QUERY_NOOUTPUT;
-    int i;
-    i64 iLastRowid = 0;
-    Fts5Iter *p1 = 0;     /* Iterator used to gather data from index */
-    Fts5Data *pData;
-    Fts5Buffer doclist;
-    int bNewTerm = 1;
-
-    memset(&doclist, 0, sizeof(doclist));
-    fts5MultiIterNew(p, pStruct, flags, pColset, pToken, nToken, -1, 0, &p1);
-    fts5IterSetOutputCb(&p->rc, p1);
-    for( /* no-op */ ;
-        fts5MultiIterEof(p, p1)==0;
-        fts5MultiIterNext2(p, p1, &bNewTerm)
-    ){
-      Fts5SegIter *pSeg = &p1->aSeg[ p1->aFirst[1].iFirst ];
-      int nTerm = pSeg->term.n;
-      const u8 *pTerm = pSeg->term.p;
-      p1->xSetOutputs(p1, pSeg);
-
-      assert_nc( memcmp(pToken, pTerm, MIN(nToken, nTerm))<=0 );
-      if( bNewTerm ){
-        if( nTerm<nToken || memcmp(pToken, pTerm, nToken) ) break;
-      }
-
-      if( p1->base.nData==0 ) continue;
-
-      if( p1->base.iRowid<=iLastRowid && doclist.n>0 ){
-        for(i=0; p->rc==SQLITE_OK && doclist.n; i++){
-          assert( i<nBuf );
-          if( aBuf[i].n==0 ){
-            fts5BufferSwap(&doclist, &aBuf[i]);
-            fts5BufferZero(&doclist);
-          }else{
-            xMerge(p, &doclist, &aBuf[i]);
-            fts5BufferZero(&aBuf[i]);
-          }
-        }
-        iLastRowid = 0;
-      }
-
-      xAppend(p, p1->base.iRowid-iLastRowid, p1, &doclist);
-      iLastRowid = p1->base.iRowid;
-    }
-
-    for(i=0; i<nBuf; i++){
-      if( p->rc==SQLITE_OK ){
-        xMerge(p, &doclist, &aBuf[i]);
-      }
-      fts5BufferFree(&aBuf[i]);
-    }
-    fts5MultiIterFree(p1);
-
-    pData = fts5IdxMalloc(p, sizeof(Fts5Data)+doclist.n+FTS5_DATA_ZERO_PADDING);
-    if( pData ){
-      pData->p = (u8*)&pData[1];
-      pData->nn = pData->szLeaf = doclist.n;
-      if( doclist.n ) memcpy(pData->p, doclist.p, doclist.n);
-      fts5MultiIterNew2(p, pData, bDesc, ppIter);
-    }
-    fts5BufferFree(&doclist);
-  }
-
-  fts5StructureRelease(pStruct);
-  tdsqlite3_free(aBuf);
-}
-
-
-/*
-** Indicate that all subsequent calls to tdsqlite3Fts5IndexWrite() pertain
-** to the document with rowid iRowid.
-*/
-static int tdsqlite3Fts5IndexBeginWrite(Fts5Index *p, int bDelete, i64 iRowid){
-  assert( p->rc==SQLITE_OK );
-
-  /* Allocate the hash table if it has not already been allocated */
-  if( p->pHash==0 ){
-    p->rc = tdsqlite3Fts5HashNew(p->pConfig, &p->pHash, &p->nPendingData);
-  }
-
-  /* Flush the hash table to disk if required */
-  if( iRowid<p->iWriteRowid 
-   || (iRowid==p->iWriteRowid && p->bDelete==0)
-   || (p->nPendingData > p->pConfig->nHashSize) 
-  ){
-    fts5IndexFlush(p);
-  }
-
-  p->iWriteRowid = iRowid;
-  p->bDelete = bDelete;
-  return fts5IndexReturn(p);
-}
-
-/*
-** Commit data to disk.
-*/
-static int tdsqlite3Fts5IndexSync(Fts5Index *p){
-  assert( p->rc==SQLITE_OK );
-  fts5IndexFlush(p);
-  tdsqlite3Fts5IndexCloseReader(p);
-  return fts5IndexReturn(p);
-}
-
-/*
-** Discard any data stored in the in-memory hash tables. Do not write it
-** to the database. Additionally, assume that the contents of the %_data
-** table may have changed on disk. So any in-memory caches of %_data 
-** records must be invalidated.
-*/
-static int tdsqlite3Fts5IndexRollback(Fts5Index *p){
-  tdsqlite3Fts5IndexCloseReader(p);
-  fts5IndexDiscardData(p);
-  fts5StructureInvalidate(p);
-  /* assert( p->rc==SQLITE_OK ); */
-  return SQLITE_OK;
-}
-
-/*
-** The %_data table is completely empty when this function is called. This
-** function populates it with the initial structure objects for each index,
-** and the initial version of the "averages" record (a zero-byte blob).
-*/
-static int tdsqlite3Fts5IndexReinit(Fts5Index *p){
-  Fts5Structure s;
-  fts5StructureInvalidate(p);
-  fts5IndexDiscardData(p);
-  memset(&s, 0, sizeof(Fts5Structure));
-  fts5DataWrite(p, FTS5_AVERAGES_ROWID, (const u8*)"", 0);
-  fts5StructureWrite(p, &s);
-  return fts5IndexReturn(p);
-}
-
-/*
-** Open a new Fts5Index handle. If the bCreate argument is true, create
-** and initialize the underlying %_data table.
-**
-** If successful, set *pp to point to the new object and return SQLITE_OK.
-** Otherwise, set *pp to NULL and return an SQLite error code.
-*/
-static int tdsqlite3Fts5IndexOpen(
-  Fts5Config *pConfig, 
-  int bCreate, 
-  Fts5Index **pp,
-  char **pzErr
-){
-  int rc = SQLITE_OK;
-  Fts5Index *p;                   /* New object */
-
-  *pp = p = (Fts5Index*)tdsqlite3Fts5MallocZero(&rc, sizeof(Fts5Index));
-  if( rc==SQLITE_OK ){
-    p->pConfig = pConfig;
-    p->nWorkUnit = FTS5_WORK_UNIT;
-    p->zDataTbl = tdsqlite3Fts5Mprintf(&rc, "%s_data", pConfig->zName);
-    if( p->zDataTbl && bCreate ){
-      rc = tdsqlite3Fts5CreateTable(
-          pConfig, "data", "id INTEGER PRIMARY KEY, block BLOB", 0, pzErr
-      );
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3Fts5CreateTable(pConfig, "idx", 
-            "segid, term, pgno, PRIMARY KEY(segid, term)", 
-            1, pzErr
-        );
-      }
-      if( rc==SQLITE_OK ){
-        rc = tdsqlite3Fts5IndexReinit(p);
-      }
-    }
-  }
-
-  assert( rc!=SQLITE_OK || p->rc==SQLITE_OK );
-  if( rc ){
-    tdsqlite3Fts5IndexClose(p);
-    *pp = 0;
-  }
-  return rc;
-}
-
-/*
-** Close a handle opened by an earlier call to tdsqlite3Fts5IndexOpen().
-*/
-static int tdsqlite3Fts5IndexClose(Fts5Index *p){
-  int rc = SQLITE_OK;
-  if( p ){
-    assert( p->pReader==0 );
-    fts5StructureInvalidate(p);
-    tdsqlite3_finalize(p->pWriter);
-    tdsqlite3_finalize(p->pDeleter);
-    tdsqlite3_finalize(p->pIdxWriter);
-    tdsqlite3_finalize(p->pIdxDeleter);
-    tdsqlite3_finalize(p->pIdxSelect);
-    tdsqlite3_finalize(p->pDataVersion);
-    tdsqlite3Fts5HashFree(p->pHash);
-    tdsqlite3_free(p->zDataTbl);
-    tdsqlite3_free(p);
-  }
-  return rc;
-}
-
-/*
-** Argument p points to a buffer containing utf-8 text that is n bytes in 
-** size. Return the number of bytes in the nChar character prefix of the
-** buffer, or 0 if there are less than nChar characters in total.
-*/
-static int tdsqlite3Fts5IndexCharlenToBytelen(
-  const char *p, 
-  int nByte, 
-  int nChar
-){
-  int n = 0;
-  int i;
-  for(i=0; i<nChar; i++){
-    if( n>=nByte ) return 0;      /* Input contains fewer than nChar chars */
-    if( (unsigned char)p[n++]>=0xc0 ){
-      if( n>=nByte ) return 0;
-      while( (p[n] & 0xc0)==0x80 ){
-        n++;
-        if( n>=nByte ){
-          if( i+1==nChar ) break;
-          return 0;
-        }
-      }
-    }
-  }
-  return n;
-}
-
-/*
-** pIn is a UTF-8 encoded string, nIn bytes in size. Return the number of
-** unicode characters in the string.
-*/
-static int fts5IndexCharlen(const char *pIn, int nIn){
-  int nChar = 0;            
-  int i = 0;
-  while( i<nIn ){
-    if( (unsigned char)pIn[i++]>=0xc0 ){
-      while( i<nIn && (pIn[i] & 0xc0)==0x80 ) i++;
-    }
-    nChar++;
-  }
-  return nChar;
-}
-
-/*
-** Insert or remove data to or from the index. Each time a document is 
-** added to or removed from the index, this function is called one or more
-** times.
-**
-** For an insert, it must be called once for each token in the new document.
-** If the operation is a delete, it must be called (at least) once for each
-** unique token in the document with an iCol value less than zero. The iPos
-** argument is ignored for a delete.
-*/
-static int tdsqlite3Fts5IndexWrite(
-  Fts5Index *p,                   /* Index to write to */
-  int iCol,                       /* Column token appears in (-ve -> delete) */
-  int iPos,                       /* Position of token within column */
-  const char *pToken, int nToken  /* Token to add or remove to or from index */
-){
-  int i;                          /* Used to iterate through indexes */
-  int rc = SQLITE_OK;             /* Return code */
-  Fts5Config *pConfig = p->pConfig;
-
-  assert( p->rc==SQLITE_OK );
-  assert( (iCol<0)==p->bDelete );
-
-  /* Add the entry to the main terms index. */
-  rc = tdsqlite3Fts5HashWrite(
-      p->pHash, p->iWriteRowid, iCol, iPos, FTS5_MAIN_PREFIX, pToken, nToken
-  );
-
-  for(i=0; i<pConfig->nPrefix && rc==SQLITE_OK; i++){
-    const int nChar = pConfig->aPrefix[i];
-    int nByte = tdsqlite3Fts5IndexCharlenToBytelen(pToken, nToken, nChar);
-    if( nByte ){
-      rc = tdsqlite3Fts5HashWrite(p->pHash, 
-          p->iWriteRowid, iCol, iPos, (char)(FTS5_MAIN_PREFIX+i+1), pToken,
-          nByte
-      );
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Open a new iterator to iterate though all rowid that match the 
-** specified token or token prefix.
-*/
-static int tdsqlite3Fts5IndexQuery(
-  Fts5Index *p,                   /* FTS index to query */
-  const char *pToken, int nToken, /* Token (or prefix) to query for */
-  int flags,                      /* Mask of FTS5INDEX_QUERY_X flags */
-  Fts5Colset *pColset,            /* Match these columns only */
-  Fts5IndexIter **ppIter          /* OUT: New iterator object */
-){
-  Fts5Config *pConfig = p->pConfig;
-  Fts5Iter *pRet = 0;
-  Fts5Buffer buf = {0, 0, 0};
-
-  /* If the QUERY_SCAN flag is set, all other flags must be clear. */
-  assert( (flags & FTS5INDEX_QUERY_SCAN)==0 || flags==FTS5INDEX_QUERY_SCAN );
-
-  if( tdsqlite3Fts5BufferSize(&p->rc, &buf, nToken+1)==0 ){
-    int iIdx = 0;                 /* Index to search */
-    if( nToken ) memcpy(&buf.p[1], pToken, nToken);
-
-    /* Figure out which index to search and set iIdx accordingly. If this
-    ** is a prefix query for which there is no prefix index, set iIdx to
-    ** greater than pConfig->nPrefix to indicate that the query will be
-    ** satisfied by scanning multiple terms in the main index.
-    **
-    ** If the QUERY_TEST_NOIDX flag was specified, then this must be a
-    ** prefix-query. Instead of using a prefix-index (if one exists), 
-    ** evaluate the prefix query using the main FTS index. This is used
-    ** for internal sanity checking by the integrity-check in debug 
-    ** mode only.  */
-#ifdef SQLITE_DEBUG
-    if( pConfig->bPrefixIndex==0 || (flags & FTS5INDEX_QUERY_TEST_NOIDX) ){
-      assert( flags & FTS5INDEX_QUERY_PREFIX );
-      iIdx = 1+pConfig->nPrefix;
-    }else
-#endif
-    if( flags & FTS5INDEX_QUERY_PREFIX ){
-      int nChar = fts5IndexCharlen(pToken, nToken);
-      for(iIdx=1; iIdx<=pConfig->nPrefix; iIdx++){
-        if( pConfig->aPrefix[iIdx-1]==nChar ) break;
-      }
-    }
-
-    if( iIdx<=pConfig->nPrefix ){
-      /* Straight index lookup */
-      Fts5Structure *pStruct = fts5StructureRead(p);
-      buf.p[0] = (u8)(FTS5_MAIN_PREFIX + iIdx);
-      if( pStruct ){
-        fts5MultiIterNew(p, pStruct, flags | FTS5INDEX_QUERY_SKIPEMPTY, 
-            pColset, buf.p, nToken+1, -1, 0, &pRet
-        );
-        fts5StructureRelease(pStruct);
-      }
-    }else{
-      /* Scan multiple terms in the main index */
-      int bDesc = (flags & FTS5INDEX_QUERY_DESC)!=0;
-      buf.p[0] = FTS5_MAIN_PREFIX;
-      fts5SetupPrefixIter(p, bDesc, buf.p, nToken+1, pColset, &pRet);
-      assert( p->rc!=SQLITE_OK || pRet->pColset==0 );
-      fts5IterSetOutputCb(&p->rc, pRet);
-      if( p->rc==SQLITE_OK ){
-        Fts5SegIter *pSeg = &pRet->aSeg[pRet->aFirst[1].iFirst];
-        if( pSeg->pLeaf ) pRet->xSetOutputs(pRet, pSeg);
-      }
-    }
-
-    if( p->rc ){
-      tdsqlite3Fts5IterClose((Fts5IndexIter*)pRet);
-      pRet = 0;
-      tdsqlite3Fts5IndexCloseReader(p);
-    }
-
-    *ppIter = (Fts5IndexIter*)pRet;
-    tdsqlite3Fts5BufferFree(&buf);
-  }
-  return fts5IndexReturn(p);
-}
-
-/*
-** Return true if the iterator passed as the only argument is at EOF.
-*/
-/*
-** Move to the next matching rowid. 
-*/
-static int tdsqlite3Fts5IterNext(Fts5IndexIter *pIndexIter){
-  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
-  assert( pIter->pIndex->rc==SQLITE_OK );
-  fts5MultiIterNext(pIter->pIndex, pIter, 0, 0);
-  return fts5IndexReturn(pIter->pIndex);
-}
-
-/*
-** Move to the next matching term/rowid. Used by the fts5vocab module.
-*/
-static int tdsqlite3Fts5IterNextScan(Fts5IndexIter *pIndexIter){
-  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
-  Fts5Index *p = pIter->pIndex;
-
-  assert( pIter->pIndex->rc==SQLITE_OK );
-
-  fts5MultiIterNext(p, pIter, 0, 0);
-  if( p->rc==SQLITE_OK ){
-    Fts5SegIter *pSeg = &pIter->aSeg[ pIter->aFirst[1].iFirst ];
-    if( pSeg->pLeaf && pSeg->term.p[0]!=FTS5_MAIN_PREFIX ){
-      fts5DataRelease(pSeg->pLeaf);
-      pSeg->pLeaf = 0;
-      pIter->base.bEof = 1;
-    }
-  }
-
-  return fts5IndexReturn(pIter->pIndex);
-}
-
-/*
-** Move to the next matching rowid that occurs at or after iMatch. The
-** definition of "at or after" depends on whether this iterator iterates
-** in ascending or descending rowid order.
-*/
-static int tdsqlite3Fts5IterNextFrom(Fts5IndexIter *pIndexIter, i64 iMatch){
-  Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
-  fts5MultiIterNextFrom(pIter->pIndex, pIter, iMatch);
-  return fts5IndexReturn(pIter->pIndex);
-}
-
-/*
-** Return the current term.
-*/
-static const char *tdsqlite3Fts5IterTerm(Fts5IndexIter *pIndexIter, int *pn){
-  int n;
-  const char *z = (const char*)fts5MultiIterTerm((Fts5Iter*)pIndexIter, &n);
-  *pn = n-1;
-  return &z[1];
-}
-
-/*
-** Close an iterator opened by an earlier call to tdsqlite3Fts5IndexQuery().
-*/
-static void tdsqlite3Fts5IterClose(Fts5IndexIter *pIndexIter){
-  if( pIndexIter ){
-    Fts5Iter *pIter = (Fts5Iter*)pIndexIter;
-    Fts5Index *pIndex = pIter->pIndex;
-    fts5MultiIterFree(pIter);
-    tdsqlite3Fts5IndexCloseReader(pIndex);
-  }
-}
-
-/*
-** Read and decode the "averages" record from the database. 
-**
-** Parameter anSize must point to an array of size nCol, where nCol is
-** the number of user defined columns in the FTS table.
-*/
-static int tdsqlite3Fts5IndexGetAverages(Fts5Index *p, i64 *pnRow, i64 *anSize){
-  int nCol = p->pConfig->nCol;
-  Fts5Data *pData;
-
-  *pnRow = 0;
-  memset(anSize, 0, sizeof(i64) * nCol);
-  pData = fts5DataRead(p, FTS5_AVERAGES_ROWID);
-  if( p->rc==SQLITE_OK && pData->nn ){
-    int i = 0;
-    int iCol;
-    i += fts5GetVarint(&pData->p[i], (u64*)pnRow);
-    for(iCol=0; i<pData->nn && iCol<nCol; iCol++){
-      i += fts5GetVarint(&pData->p[i], (u64*)&anSize[iCol]);
-    }
-  }
-
-  fts5DataRelease(pData);
-  return fts5IndexReturn(p);
-}
-
-/*
-** Replace the current "averages" record with the contents of the buffer 
-** supplied as the second argument.
-*/
-static int tdsqlite3Fts5IndexSetAverages(Fts5Index *p, const u8 *pData, int nData){
-  assert( p->rc==SQLITE_OK );
-  fts5DataWrite(p, FTS5_AVERAGES_ROWID, pData, nData);
-  return fts5IndexReturn(p);
-}
-
-/*
-** Return the total number of blocks this module has read from the %_data
-** table since it was created.
-*/
-static int tdsqlite3Fts5IndexReads(Fts5Index *p){
-  return p->nRead;
-}
-
-/*
-** Set the 32-bit cookie value stored at the start of all structure 
-** records to the value passed as the second argument.
-**
-** Return SQLITE_OK if successful, or an SQLite error code if an error
-** occurs.
-*/
-static int tdsqlite3Fts5IndexSetCookie(Fts5Index *p, int iNew){
-  int rc;                              /* Return code */
-  Fts5Config *pConfig = p->pConfig;    /* Configuration object */
-  u8 aCookie[4];                       /* Binary representation of iNew */
-  tdsqlite3_blob *pBlob = 0;
-
-  assert( p->rc==SQLITE_OK );
-  tdsqlite3Fts5Put32(aCookie, iNew);
-
-  rc = tdsqlite3_blob_open(pConfig->db, pConfig->zDb, p->zDataTbl, 
-      "block", FTS5_STRUCTURE_ROWID, 1, &pBlob
-  );
-  if( rc==SQLITE_OK ){
-    tdsqlite3_blob_write(pBlob, aCookie, 4, 0);
-    rc = tdsqlite3_blob_close(pBlob);
-  }
-
-  return rc;
-}
-
-static int tdsqlite3Fts5IndexLoadConfig(Fts5Index *p){
-  Fts5Structure *pStruct;
-  pStruct = fts5StructureRead(p);
-  fts5StructureRelease(pStruct);
-  return fts5IndexReturn(p);
-}
-
-
-/*************************************************************************
-**************************************************************************
-** Below this point is the implementation of the integrity-check 
-** functionality.
-*/
-
-/*
-** Return a simple checksum value based on the arguments.
-*/
-static u64 tdsqlite3Fts5IndexEntryCksum(
-  i64 iRowid, 
-  int iCol, 
-  int iPos, 
-  int iIdx,
-  const char *pTerm,
-  int nTerm
-){
-  int i;
-  u64 ret = iRowid;
-  ret += (ret<<3) + iCol;
-  ret += (ret<<3) + iPos;
-  if( iIdx>=0 ) ret += (ret<<3) + (FTS5_MAIN_PREFIX + iIdx);
-  for(i=0; i<nTerm; i++) ret += (ret<<3) + pTerm[i];
-  return ret;
-}
-
-#ifdef SQLITE_DEBUG
-/*
-** This function is purely an internal test. It does not contribute to 
-** FTS functionality, or even the integrity-check, in any way.
-**
-** Instead, it tests that the same set of pgno/rowid combinations are 
-** visited regardless of whether the doclist-index identified by parameters
-** iSegid/iLeaf is iterated in forwards or reverse order.
-*/
-static void fts5TestDlidxReverse(
-  Fts5Index *p, 
-  int iSegid,                     /* Segment id to load from */
-  int iLeaf                       /* Load doclist-index for this leaf */
-){
-  Fts5DlidxIter *pDlidx = 0;
-  u64 cksum1 = 13;
-  u64 cksum2 = 13;
-
-  for(pDlidx=fts5DlidxIterInit(p, 0, iSegid, iLeaf);
-      fts5DlidxIterEof(p, pDlidx)==0;
-      fts5DlidxIterNext(p, pDlidx)
-  ){
-    i64 iRowid = fts5DlidxIterRowid(pDlidx);
-    int pgno = fts5DlidxIterPgno(pDlidx);
-    assert( pgno>iLeaf );
-    cksum1 += iRowid + ((i64)pgno<<32);
-  }
-  fts5DlidxIterFree(pDlidx);
-  pDlidx = 0;
-
-  for(pDlidx=fts5DlidxIterInit(p, 1, iSegid, iLeaf);
-      fts5DlidxIterEof(p, pDlidx)==0;
-      fts5DlidxIterPrev(p, pDlidx)
-  ){
-    i64 iRowid = fts5DlidxIterRowid(pDlidx);
-    int pgno = fts5DlidxIterPgno(pDlidx);
-    assert( fts5DlidxIterPgno(pDlidx)>iLeaf );
-    cksum2 += iRowid + ((i64)pgno<<32);
-  }
-  fts5DlidxIterFree(pDlidx);
-  pDlidx = 0;
-
-  if( p->rc==SQLITE_OK && cksum1!=cksum2 ) p->rc = FTS5_CORRUPT;
-}
-
-static int fts5QueryCksum(
-  Fts5Index *p,                   /* Fts5 index object */
-  int iIdx,
-  const char *z,                  /* Index key to query for */
-  int n,                          /* Size of index key in bytes */
-  int flags,                      /* Flags for Fts5IndexQuery */
-  u64 *pCksum                     /* IN/OUT: Checksum value */
-){
-  int eDetail = p->pConfig->eDetail;
-  u64 cksum = *pCksum;
-  Fts5IndexIter *pIter = 0;
-  int rc = tdsqlite3Fts5IndexQuery(p, z, n, flags, 0, &pIter);
-
-  while( rc==SQLITE_OK && 0==tdsqlite3Fts5IterEof(pIter) ){
-    i64 rowid = pIter->iRowid;
-
-    if( eDetail==FTS5_DETAIL_NONE ){
-      cksum ^= tdsqlite3Fts5IndexEntryCksum(rowid, 0, 0, iIdx, z, n);
-    }else{
-      Fts5PoslistReader sReader;
-      for(tdsqlite3Fts5PoslistReaderInit(pIter->pData, pIter->nData, &sReader);
-          sReader.bEof==0;
-          tdsqlite3Fts5PoslistReaderNext(&sReader)
-      ){
-        int iCol = FTS5_POS2COLUMN(sReader.iPos);
-        int iOff = FTS5_POS2OFFSET(sReader.iPos);
-        cksum ^= tdsqlite3Fts5IndexEntryCksum(rowid, iCol, iOff, iIdx, z, n);
-      }
-    }
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3Fts5IterNext(pIter);
-    }
-  }
-  tdsqlite3Fts5IterClose(pIter);
-
-  *pCksum = cksum;
-  return rc;
-}
-
-/*
-** Check if buffer z[], size n bytes, contains as series of valid utf-8
-** encoded codepoints. If so, return 0. Otherwise, if the buffer does not
-** contain valid utf-8, return non-zero.
-*/
-static int fts5TestUtf8(const char *z, int n){
-  assert_nc( n>0 );
-  int i = 0;
-  while( i<n ){
-    if( (z[i] & 0x80)==0x00 ){
-      i++;
-    }else
-    if( (z[i] & 0xE0)==0xC0 ){
-      if( i+1>=n || (z[i+1] & 0xC0)!=0x80 ) return 1;
-      i += 2;
-    }else
-    if( (z[i] & 0xF0)==0xE0 ){
-      if( i+2>=n || (z[i+1] & 0xC0)!=0x80 || (z[i+2] & 0xC0)!=0x80 ) return 1;
-      i += 3;
-    }else
-    if( (z[i] & 0xF8)==0xF0 ){
-      if( i+3>=n || (z[i+1] & 0xC0)!=0x80 || (z[i+2] & 0xC0)!=0x80 ) return 1;
-      if( (z[i+2] & 0xC0)!=0x80 ) return 1;
-      i += 3;
-    }else{
-      return 1;
-    }
-  }
-
-  return 0;
-}
-
-/*
-** This function is also purely an internal test. It does not contribute to 
-** FTS functionality, or even the integrity-check, in any way.
-*/
-static void fts5TestTerm(
-  Fts5Index *p, 
-  Fts5Buffer *pPrev,              /* Previous term */
-  const char *z, int n,           /* Possibly new term to test */
-  u64 expected,
-  u64 *pCksum
-){
-  int rc = p->rc;
-  if( pPrev->n==0 ){
-    fts5BufferSet(&rc, pPrev, n, (const u8*)z);
-  }else
-  if( rc==SQLITE_OK && (pPrev->n!=n || memcmp(pPrev->p, z, n)) ){
-    u64 cksum3 = *pCksum;
-    const char *zTerm = (const char*)&pPrev->p[1];  /* term sans prefix-byte */
-    int nTerm = pPrev->n-1;            /* Size of zTerm in bytes */
-    int iIdx = (pPrev->p[0] - FTS5_MAIN_PREFIX);
-    int flags = (iIdx==0 ? 0 : FTS5INDEX_QUERY_PREFIX);
-    u64 ck1 = 0;
-    u64 ck2 = 0;
-
-    /* Check that the results returned for ASC and DESC queries are
-    ** the same. If not, call this corruption.  */
-    rc = fts5QueryCksum(p, iIdx, zTerm, nTerm, flags, &ck1);
-    if( rc==SQLITE_OK ){
-      int f = flags|FTS5INDEX_QUERY_DESC;
-      rc = fts5QueryCksum(p, iIdx, zTerm, nTerm, f, &ck2);
-    }
-    if( rc==SQLITE_OK && ck1!=ck2 ) rc = FTS5_CORRUPT;
-
-    /* If this is a prefix query, check that the results returned if the
-    ** the index is disabled are the same. In both ASC and DESC order. 
-    **
-    ** This check may only be performed if the hash table is empty. This
-    ** is because the hash table only supports a single scan query at
-    ** a time, and the multi-iter loop from which this function is called
-    ** is already performing such a scan. 
-    **
-    ** Also only do this if buffer zTerm contains nTerm bytes of valid
-    ** utf-8. Otherwise, the last part of the buffer contents might contain
-    ** a non-utf-8 sequence that happens to be a prefix of a valid utf-8
-    ** character stored in the main fts index, which will cause the
-    ** test to fail.  */
-    if( p->nPendingData==0 && 0==fts5TestUtf8(zTerm, nTerm) ){
-      if( iIdx>0 && rc==SQLITE_OK ){
-        int f = flags|FTS5INDEX_QUERY_TEST_NOIDX;
-        ck2 = 0;
-        rc = fts5QueryCksum(p, iIdx, zTerm, nTerm, f, &ck2);
-        if( rc==SQLITE_OK && ck1!=ck2 ) rc = FTS5_CORRUPT;
-      }
-      if( iIdx>0 && rc==SQLITE_OK ){
-        int f = flags|FTS5INDEX_QUERY_TEST_NOIDX|FTS5INDEX_QUERY_DESC;
-        ck2 = 0;
-        rc = fts5QueryCksum(p, iIdx, zTerm, nTerm, f, &ck2);
-        if( rc==SQLITE_OK && ck1!=ck2 ) rc = FTS5_CORRUPT;
-      }
-    }
-
-    cksum3 ^= ck1;
-    fts5BufferSet(&rc, pPrev, n, (const u8*)z);
-
-    if( rc==SQLITE_OK && cksum3!=expected ){
-      rc = FTS5_CORRUPT;
-    }
-    *pCksum = cksum3;
-  }
-  p->rc = rc;
-}
- 
-#else
-# define fts5TestDlidxReverse(x,y,z)
-# define fts5TestTerm(u,v,w,x,y,z)
-#endif
-
-/*
-** Check that:
-**
-**   1) All leaves of pSeg between iFirst and iLast (inclusive) exist and
-**      contain zero terms.
-**   2) All leaves of pSeg between iNoRowid and iLast (inclusive) exist and
-**      contain zero rowids.
-*/
-static void fts5IndexIntegrityCheckEmpty(
-  Fts5Index *p,
-  Fts5StructureSegment *pSeg,     /* Segment to check internal consistency */
-  int iFirst,
-  int iNoRowid,
-  int iLast
-){
-  int i;
-
-  /* Now check that the iter.nEmpty leaves following the current leaf
-  ** (a) exist and (b) contain no terms. */
-  for(i=iFirst; p->rc==SQLITE_OK && i<=iLast; i++){
-    Fts5Data *pLeaf = fts5DataRead(p, FTS5_SEGMENT_ROWID(pSeg->iSegid, i));
-    if( pLeaf ){
-      if( !fts5LeafIsTermless(pLeaf) ) p->rc = FTS5_CORRUPT;
-      if( i>=iNoRowid && 0!=fts5LeafFirstRowidOff(pLeaf) ) p->rc = FTS5_CORRUPT;
-    }
-    fts5DataRelease(pLeaf);
-  }
-}
-
-static void fts5IntegrityCheckPgidx(Fts5Index *p, Fts5Data *pLeaf){
-  int iTermOff = 0;
-  int ii;
-
-  Fts5Buffer buf1 = {0,0,0};
-  Fts5Buffer buf2 = {0,0,0};
-
-  ii = pLeaf->szLeaf;
-  while( ii<pLeaf->nn && p->rc==SQLITE_OK ){
-    int res;
-    int iOff;
-    int nIncr;
-
-    ii += fts5GetVarint32(&pLeaf->p[ii], nIncr);
-    iTermOff += nIncr;
-    iOff = iTermOff;
-
-    if( iOff>=pLeaf->szLeaf ){
-      p->rc = FTS5_CORRUPT;
-    }else if( iTermOff==nIncr ){
-      int nByte;
-      iOff += fts5GetVarint32(&pLeaf->p[iOff], nByte);
-      if( (iOff+nByte)>pLeaf->szLeaf ){
-        p->rc = FTS5_CORRUPT;
-      }else{
-        fts5BufferSet(&p->rc, &buf1, nByte, &pLeaf->p[iOff]);
-      }
-    }else{
-      int nKeep, nByte;
-      iOff += fts5GetVarint32(&pLeaf->p[iOff], nKeep);
-      iOff += fts5GetVarint32(&pLeaf->p[iOff], nByte);
-      if( nKeep>buf1.n || (iOff+nByte)>pLeaf->szLeaf ){
-        p->rc = FTS5_CORRUPT;
-      }else{
-        buf1.n = nKeep;
-        fts5BufferAppendBlob(&p->rc, &buf1, nByte, &pLeaf->p[iOff]);
-      }
-
-      if( p->rc==SQLITE_OK ){
-        res = fts5BufferCompare(&buf1, &buf2);
-        if( res<=0 ) p->rc = FTS5_CORRUPT;
-      }
-    }
-    fts5BufferSet(&p->rc, &buf2, buf1.n, buf1.p);
-  }
-
-  fts5BufferFree(&buf1);
-  fts5BufferFree(&buf2);
-}
-
-static void fts5IndexIntegrityCheckSegment(
-  Fts5Index *p,                   /* FTS5 backend object */
-  Fts5StructureSegment *pSeg      /* Segment to check internal consistency */
-){
-  Fts5Config *pConfig = p->pConfig;
-  tdsqlite3_stmt *pStmt = 0;
-  int rc2;
-  int iIdxPrevLeaf = pSeg->pgnoFirst-1;
-  int iDlidxPrevLeaf = pSeg->pgnoLast;
-
-  if( pSeg->pgnoFirst==0 ) return;
-
-  fts5IndexPrepareStmt(p, &pStmt, tdsqlite3_mprintf(
-      "SELECT segid, term, (pgno>>1), (pgno&1) FROM %Q.'%q_idx' WHERE segid=%d "
-      "ORDER BY 1, 2",
-      pConfig->zDb, pConfig->zName, pSeg->iSegid
-  ));
-
-  /* Iterate through the b-tree hierarchy.  */
-  while( p->rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pStmt) ){
-    i64 iRow;                     /* Rowid for this leaf */
-    Fts5Data *pLeaf;              /* Data for this leaf */
-
-    const char *zIdxTerm = (const char*)tdsqlite3_column_blob(pStmt, 1);
-    int nIdxTerm = tdsqlite3_column_bytes(pStmt, 1);
-    int iIdxLeaf = tdsqlite3_column_int(pStmt, 2);
-    int bIdxDlidx = tdsqlite3_column_int(pStmt, 3);
-
-    /* If the leaf in question has already been trimmed from the segment, 
-    ** ignore this b-tree entry. Otherwise, load it into memory. */
-    if( iIdxLeaf<pSeg->pgnoFirst ) continue;
-    iRow = FTS5_SEGMENT_ROWID(pSeg->iSegid, iIdxLeaf);
-    pLeaf = fts5LeafRead(p, iRow);
-    if( pLeaf==0 ) break;
-
-    /* Check that the leaf contains at least one term, and that it is equal
-    ** to or larger than the split-key in zIdxTerm.  Also check that if there
-    ** is also a rowid pointer within the leaf page header, it points to a
-    ** location before the term.  */
-    if( pLeaf->nn<=pLeaf->szLeaf ){
-      p->rc = FTS5_CORRUPT;
-    }else{
-      int iOff;                   /* Offset of first term on leaf */
-      int iRowidOff;              /* Offset of first rowid on leaf */
-      int nTerm;                  /* Size of term on leaf in bytes */
-      int res;                    /* Comparison of term and split-key */
-
-      iOff = fts5LeafFirstTermOff(pLeaf);
-      iRowidOff = fts5LeafFirstRowidOff(pLeaf);
-      if( iRowidOff>=iOff || iOff>=pLeaf->szLeaf ){
-        p->rc = FTS5_CORRUPT;
-      }else{
-        iOff += fts5GetVarint32(&pLeaf->p[iOff], nTerm);
-        res = fts5Memcmp(&pLeaf->p[iOff], zIdxTerm, MIN(nTerm, nIdxTerm));
-        if( res==0 ) res = nTerm - nIdxTerm;
-        if( res<0 ) p->rc = FTS5_CORRUPT;
-      }
-
-      fts5IntegrityCheckPgidx(p, pLeaf);
-    }
-    fts5DataRelease(pLeaf);
-    if( p->rc ) break;
-
-    /* Now check that the iter.nEmpty leaves following the current leaf
-    ** (a) exist and (b) contain no terms. */
-    fts5IndexIntegrityCheckEmpty(
-        p, pSeg, iIdxPrevLeaf+1, iDlidxPrevLeaf+1, iIdxLeaf-1
-    );
-    if( p->rc ) break;
-
-    /* If there is a doclist-index, check that it looks right. */
-    if( bIdxDlidx ){
-      Fts5DlidxIter *pDlidx = 0;  /* For iterating through doclist index */
-      int iPrevLeaf = iIdxLeaf;
-      int iSegid = pSeg->iSegid;
-      int iPg = 0;
-      i64 iKey;
-
-      for(pDlidx=fts5DlidxIterInit(p, 0, iSegid, iIdxLeaf);
-          fts5DlidxIterEof(p, pDlidx)==0;
-          fts5DlidxIterNext(p, pDlidx)
-      ){
-
-        /* Check any rowid-less pages that occur before the current leaf. */
-        for(iPg=iPrevLeaf+1; iPg<fts5DlidxIterPgno(pDlidx); iPg++){
-          iKey = FTS5_SEGMENT_ROWID(iSegid, iPg);
-          pLeaf = fts5DataRead(p, iKey);
-          if( pLeaf ){
-            if( fts5LeafFirstRowidOff(pLeaf)!=0 ) p->rc = FTS5_CORRUPT;
-            fts5DataRelease(pLeaf);
-          }
-        }
-        iPrevLeaf = fts5DlidxIterPgno(pDlidx);
-
-        /* Check that the leaf page indicated by the iterator really does
-        ** contain the rowid suggested by the same. */
-        iKey = FTS5_SEGMENT_ROWID(iSegid, iPrevLeaf);
-        pLeaf = fts5DataRead(p, iKey);
-        if( pLeaf ){
-          i64 iRowid;
-          int iRowidOff = fts5LeafFirstRowidOff(pLeaf);
-          ASSERT_SZLEAF_OK(pLeaf);
-          if( iRowidOff>=pLeaf->szLeaf ){
-            p->rc = FTS5_CORRUPT;
-          }else{
-            fts5GetVarint(&pLeaf->p[iRowidOff], (u64*)&iRowid);
-            if( iRowid!=fts5DlidxIterRowid(pDlidx) ) p->rc = FTS5_CORRUPT;
-          }
-          fts5DataRelease(pLeaf);
-        }
-      }
-
-      iDlidxPrevLeaf = iPg;
-      fts5DlidxIterFree(pDlidx);
-      fts5TestDlidxReverse(p, iSegid, iIdxLeaf);
-    }else{
-      iDlidxPrevLeaf = pSeg->pgnoLast;
-      /* TODO: Check there is no doclist index */
-    }
-
-    iIdxPrevLeaf = iIdxLeaf;
-  }
-
-  rc2 = tdsqlite3_finalize(pStmt);
-  if( p->rc==SQLITE_OK ) p->rc = rc2;
-
-  /* Page iter.iLeaf must now be the rightmost leaf-page in the segment */
-#if 0
-  if( p->rc==SQLITE_OK && iter.iLeaf!=pSeg->pgnoLast ){
-    p->rc = FTS5_CORRUPT;
-  }
-#endif
-}
-
-
-/*
-** Run internal checks to ensure that the FTS index (a) is internally 
-** consistent and (b) contains entries for which the XOR of the checksums
-** as calculated by tdsqlite3Fts5IndexEntryCksum() is cksum.
-**
-** Return SQLITE_CORRUPT if any of the internal checks fail, or if the
-** checksum does not match. Return SQLITE_OK if all checks pass without
-** error, or some other SQLite error code if another error (e.g. OOM)
-** occurs.
-*/
-static int tdsqlite3Fts5IndexIntegrityCheck(Fts5Index *p, u64 cksum){
-  int eDetail = p->pConfig->eDetail;
-  u64 cksum2 = 0;                 /* Checksum based on contents of indexes */
-  Fts5Buffer poslist = {0,0,0};   /* Buffer used to hold a poslist */
-  Fts5Iter *pIter;                /* Used to iterate through entire index */
-  Fts5Structure *pStruct;         /* Index structure */
-
-#ifdef SQLITE_DEBUG
-  /* Used by extra internal tests only run if NDEBUG is not defined */
-  u64 cksum3 = 0;                 /* Checksum based on contents of indexes */
-  Fts5Buffer term = {0,0,0};      /* Buffer used to hold most recent term */
-#endif
-  const int flags = FTS5INDEX_QUERY_NOOUTPUT;
-  
-  /* Load the FTS index structure */
-  pStruct = fts5StructureRead(p);
-
-  /* Check that the internal nodes of each segment match the leaves */
-  if( pStruct ){
-    int iLvl, iSeg;
-    for(iLvl=0; iLvl<pStruct->nLevel; iLvl++){
-      for(iSeg=0; iSeg<pStruct->aLevel[iLvl].nSeg; iSeg++){
-        Fts5StructureSegment *pSeg = &pStruct->aLevel[iLvl].aSeg[iSeg];
-        fts5IndexIntegrityCheckSegment(p, pSeg);
-      }
-    }
-  }
-
-  /* The cksum argument passed to this function is a checksum calculated
-  ** based on all expected entries in the FTS index (including prefix index
-  ** entries). This block checks that a checksum calculated based on the
-  ** actual contents of FTS index is identical.
-  **
-  ** Two versions of the same checksum are calculated. The first (stack
-  ** variable cksum2) based on entries extracted from the full-text index
-  ** while doing a linear scan of each individual index in turn. 
-  **
-  ** As each term visited by the linear scans, a separate query for the
-  ** same term is performed. cksum3 is calculated based on the entries
-  ** extracted by these queries.
-  */
-  for(fts5MultiIterNew(p, pStruct, flags, 0, 0, 0, -1, 0, &pIter);
-      fts5MultiIterEof(p, pIter)==0;
-      fts5MultiIterNext(p, pIter, 0, 0)
-  ){
-    int n;                      /* Size of term in bytes */
-    i64 iPos = 0;               /* Position read from poslist */
-    int iOff = 0;               /* Offset within poslist */
-    i64 iRowid = fts5MultiIterRowid(pIter);
-    char *z = (char*)fts5MultiIterTerm(pIter, &n);
-
-    /* If this is a new term, query for it. Update cksum3 with the results. */
-    fts5TestTerm(p, &term, z, n, cksum2, &cksum3);
-
-    if( eDetail==FTS5_DETAIL_NONE ){
-      if( 0==fts5MultiIterIsEmpty(p, pIter) ){
-        cksum2 ^= tdsqlite3Fts5IndexEntryCksum(iRowid, 0, 0, -1, z, n);
-      }
-    }else{
-      poslist.n = 0;
-      fts5SegiterPoslist(p, &pIter->aSeg[pIter->aFirst[1].iFirst], 0, &poslist);
-      while( 0==tdsqlite3Fts5PoslistNext64(poslist.p, poslist.n, &iOff, &iPos) ){
-        int iCol = FTS5_POS2COLUMN(iPos);
-        int iTokOff = FTS5_POS2OFFSET(iPos);
-        cksum2 ^= tdsqlite3Fts5IndexEntryCksum(iRowid, iCol, iTokOff, -1, z, n);
-      }
-    }
-  }
-  fts5TestTerm(p, &term, 0, 0, cksum2, &cksum3);
-
-  fts5MultiIterFree(pIter);
-  if( p->rc==SQLITE_OK && cksum!=cksum2 ) p->rc = FTS5_CORRUPT;
-
-  fts5StructureRelease(pStruct);
-#ifdef SQLITE_DEBUG
-  fts5BufferFree(&term);
-#endif
-  fts5BufferFree(&poslist);
-  return fts5IndexReturn(p);
-}
-
-/*************************************************************************
-**************************************************************************
-** Below this point is the implementation of the fts5_decode() scalar
-** function only.
-*/
-
-/*
-** Decode a segment-data rowid from the %_data table. This function is
-** the opposite of macro FTS5_SEGMENT_ROWID().
-*/
-static void fts5DecodeRowid(
-  i64 iRowid,                     /* Rowid from %_data table */
-  int *piSegid,                   /* OUT: Segment id */
-  int *pbDlidx,                   /* OUT: Dlidx flag */
-  int *piHeight,                  /* OUT: Height */
-  int *piPgno                     /* OUT: Page number */
-){
-  *piPgno = (int)(iRowid & (((i64)1 << FTS5_DATA_PAGE_B) - 1));
-  iRowid >>= FTS5_DATA_PAGE_B;
-
-  *piHeight = (int)(iRowid & (((i64)1 << FTS5_DATA_HEIGHT_B) - 1));
-  iRowid >>= FTS5_DATA_HEIGHT_B;
-
-  *pbDlidx = (int)(iRowid & 0x0001);
-  iRowid >>= FTS5_DATA_DLI_B;
-
-  *piSegid = (int)(iRowid & (((i64)1 << FTS5_DATA_ID_B) - 1));
-}
-
-static void fts5DebugRowid(int *pRc, Fts5Buffer *pBuf, i64 iKey){
-  int iSegid, iHeight, iPgno, bDlidx;       /* Rowid compenents */
-  fts5DecodeRowid(iKey, &iSegid, &bDlidx, &iHeight, &iPgno);
-
-  if( iSegid==0 ){
-    if( iKey==FTS5_AVERAGES_ROWID ){
-      tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, "{averages} ");
-    }else{
-      tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, "{structure}");
-    }
-  }
-  else{
-    tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, "{%ssegid=%d h=%d pgno=%d}",
-        bDlidx ? "dlidx " : "", iSegid, iHeight, iPgno
-    );
-  }
-}
-
-static void fts5DebugStructure(
-  int *pRc,                       /* IN/OUT: error code */
-  Fts5Buffer *pBuf,
-  Fts5Structure *p
-){
-  int iLvl, iSeg;                 /* Iterate through levels, segments */
-
-  for(iLvl=0; iLvl<p->nLevel; iLvl++){
-    Fts5StructureLevel *pLvl = &p->aLevel[iLvl];
-    tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, 
-        " {lvl=%d nMerge=%d nSeg=%d", iLvl, pLvl->nMerge, pLvl->nSeg
-    );
-    for(iSeg=0; iSeg<pLvl->nSeg; iSeg++){
-      Fts5StructureSegment *pSeg = &pLvl->aSeg[iSeg];
-      tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, " {id=%d leaves=%d..%d}", 
-          pSeg->iSegid, pSeg->pgnoFirst, pSeg->pgnoLast
-      );
-    }
-    tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, "}");
-  }
-}
-
-/*
-** This is part of the fts5_decode() debugging aid.
-**
-** Arguments pBlob/nBlob contain a serialized Fts5Structure object. This
-** function appends a human-readable representation of the same object
-** to the buffer passed as the second argument. 
-*/
-static void fts5DecodeStructure(
-  int *pRc,                       /* IN/OUT: error code */
-  Fts5Buffer *pBuf,
-  const u8 *pBlob, int nBlob
-){
-  int rc;                         /* Return code */
-  Fts5Structure *p = 0;           /* Decoded structure object */
-
-  rc = fts5StructureDecode(pBlob, nBlob, 0, &p);
-  if( rc!=SQLITE_OK ){
-    *pRc = rc;
-    return;
-  }
-
-  fts5DebugStructure(pRc, pBuf, p);
-  fts5StructureRelease(p);
-}
-
-/*
-** This is part of the fts5_decode() debugging aid.
-**
-** Arguments pBlob/nBlob contain an "averages" record. This function 
-** appends a human-readable representation of record to the buffer passed 
-** as the second argument. 
-*/
-static void fts5DecodeAverages(
-  int *pRc,                       /* IN/OUT: error code */
-  Fts5Buffer *pBuf,
-  const u8 *pBlob, int nBlob
-){
-  int i = 0;
-  const char *zSpace = "";
-
-  while( i<nBlob ){
-    u64 iVal;
-    i += tdsqlite3Fts5GetVarint(&pBlob[i], &iVal);
-    tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, "%s%d", zSpace, (int)iVal);
-    zSpace = " ";
-  }
-}
-
-/*
-** Buffer (a/n) is assumed to contain a list of serialized varints. Read
-** each varint and append its string representation to buffer pBuf. Return
-** after either the input buffer is exhausted or a 0 value is read.
-**
-** The return value is the number of bytes read from the input buffer.
-*/
-static int fts5DecodePoslist(int *pRc, Fts5Buffer *pBuf, const u8 *a, int n){
-  int iOff = 0;
-  while( iOff<n ){
-    int iVal;
-    iOff += fts5GetVarint32(&a[iOff], iVal);
-    tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, " %d", iVal);
-  }
-  return iOff;
-}
-
-/*
-** The start of buffer (a/n) contains the start of a doclist. The doclist
-** may or may not finish within the buffer. This function appends a text
-** representation of the part of the doclist that is present to buffer
-** pBuf. 
-**
-** The return value is the number of bytes read from the input buffer.
-*/
-static int fts5DecodeDoclist(int *pRc, Fts5Buffer *pBuf, const u8 *a, int n){
-  i64 iDocid = 0;
-  int iOff = 0;
-
-  if( n>0 ){
-    iOff = tdsqlite3Fts5GetVarint(a, (u64*)&iDocid);
-    tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, " id=%lld", iDocid);
-  }
-  while( iOff<n ){
-    int nPos;
-    int bDel;
-    iOff += fts5GetPoslistSize(&a[iOff], &nPos, &bDel);
-    tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, " nPos=%d%s", nPos, bDel?"*":"");
-    iOff += fts5DecodePoslist(pRc, pBuf, &a[iOff], MIN(n-iOff, nPos));
-    if( iOff<n ){
-      i64 iDelta;
-      iOff += tdsqlite3Fts5GetVarint(&a[iOff], (u64*)&iDelta);
-      iDocid += iDelta;
-      tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, " id=%lld", iDocid);
-    }
-  }
-
-  return iOff;
-}
-
-/*
-** This function is part of the fts5_decode() debugging function. It is 
-** only ever used with detail=none tables.
-**
-** Buffer (pData/nData) contains a doclist in the format used by detail=none
-** tables. This function appends a human-readable version of that list to
-** buffer pBuf.
-**
-** If *pRc is other than SQLITE_OK when this function is called, it is a
-** no-op. If an OOM or other error occurs within this function, *pRc is
-** set to an SQLite error code before returning. The final state of buffer
-** pBuf is undefined in this case.
-*/
-static void fts5DecodeRowidList(
-  int *pRc,                       /* IN/OUT: Error code */
-  Fts5Buffer *pBuf,               /* Buffer to append text to */
-  const u8 *pData, int nData      /* Data to decode list-of-rowids from */
-){
-  int i = 0;
-  i64 iRowid = 0;
-
-  while( i<nData ){
-    const char *zApp = "";
-    u64 iVal;
-    i += tdsqlite3Fts5GetVarint(&pData[i], &iVal);
-    iRowid += iVal;
-
-    if( i<nData && pData[i]==0x00 ){
-      i++;
-      if( i<nData && pData[i]==0x00 ){
-        i++;
-        zApp = "+";
-      }else{
-        zApp = "*";
-      }
-    }
-
-    tdsqlite3Fts5BufferAppendPrintf(pRc, pBuf, " %lld%s", iRowid, zApp);
-  }
-}
-
-/*
-** The implementation of user-defined scalar function fts5_decode().
-*/
-static void fts5DecodeFunction(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args (always 2) */
-  tdsqlite3_value **apVal           /* Function arguments */
-){
-  i64 iRowid;                     /* Rowid for record being decoded */
-  int iSegid,iHeight,iPgno,bDlidx;/* Rowid components */
-  const u8 *aBlob; int n;         /* Record to decode */
-  u8 *a = 0;
-  Fts5Buffer s;                   /* Build up text to return here */
-  int rc = SQLITE_OK;             /* Return code */
-  tdsqlite3_int64 nSpace = 0;
-  int eDetailNone = (tdsqlite3_user_data(pCtx)!=0);
-
-  assert( nArg==2 );
-  UNUSED_PARAM(nArg);
-  memset(&s, 0, sizeof(Fts5Buffer));
-  iRowid = tdsqlite3_value_int64(apVal[0]);
-
-  /* Make a copy of the second argument (a blob) in aBlob[]. The aBlob[]
-  ** copy is followed by FTS5_DATA_ZERO_PADDING 0x00 bytes, which prevents
-  ** buffer overreads even if the record is corrupt.  */
-  n = tdsqlite3_value_bytes(apVal[1]);
-  aBlob = tdsqlite3_value_blob(apVal[1]);
-  nSpace = n + FTS5_DATA_ZERO_PADDING;
-  a = (u8*)tdsqlite3Fts5MallocZero(&rc, nSpace);
-  if( a==0 ) goto decode_out;
-  if( n>0 ) memcpy(a, aBlob, n);
-
-  fts5DecodeRowid(iRowid, &iSegid, &bDlidx, &iHeight, &iPgno);
-
-  fts5DebugRowid(&rc, &s, iRowid);
-  if( bDlidx ){
-    Fts5Data dlidx;
-    Fts5DlidxLvl lvl;
-
-    dlidx.p = a;
-    dlidx.nn = n;
-
-    memset(&lvl, 0, sizeof(Fts5DlidxLvl));
-    lvl.pData = &dlidx;
-    lvl.iLeafPgno = iPgno;
-
-    for(fts5DlidxLvlNext(&lvl); lvl.bEof==0; fts5DlidxLvlNext(&lvl)){
-      tdsqlite3Fts5BufferAppendPrintf(&rc, &s, 
-          " %d(%lld)", lvl.iLeafPgno, lvl.iRowid
-      );
-    }
-  }else if( iSegid==0 ){
-    if( iRowid==FTS5_AVERAGES_ROWID ){
-      fts5DecodeAverages(&rc, &s, a, n);
-    }else{
-      fts5DecodeStructure(&rc, &s, a, n);
-    }
-  }else if( eDetailNone ){
-    Fts5Buffer term;              /* Current term read from page */
-    int szLeaf;
-    int iPgidxOff = szLeaf = fts5GetU16(&a[2]);
-    int iTermOff;
-    int nKeep = 0;
-    int iOff;
-
-    memset(&term, 0, sizeof(Fts5Buffer));
-
-    /* Decode any entries that occur before the first term. */
-    if( szLeaf<n ){
-      iPgidxOff += fts5GetVarint32(&a[iPgidxOff], iTermOff);
-    }else{
-      iTermOff = szLeaf;
-    }
-    fts5DecodeRowidList(&rc, &s, &a[4], iTermOff-4);
-
-    iOff = iTermOff;
-    while( iOff<szLeaf ){
-      int nAppend;
-
-      /* Read the term data for the next term*/
-      iOff += fts5GetVarint32(&a[iOff], nAppend);
-      term.n = nKeep;
-      fts5BufferAppendBlob(&rc, &term, nAppend, &a[iOff]);
-      tdsqlite3Fts5BufferAppendPrintf(
-          &rc, &s, " term=%.*s", term.n, (const char*)term.p
-      );
-      iOff += nAppend;
-
-      /* Figure out where the doclist for this term ends */
-      if( iPgidxOff<n ){
-        int nIncr;
-        iPgidxOff += fts5GetVarint32(&a[iPgidxOff], nIncr);
-        iTermOff += nIncr;
-      }else{
-        iTermOff = szLeaf;
-      }
-
-      fts5DecodeRowidList(&rc, &s, &a[iOff], iTermOff-iOff);
-      iOff = iTermOff;
-      if( iOff<szLeaf ){
-        iOff += fts5GetVarint32(&a[iOff], nKeep);
-      }
-    }
-
-    fts5BufferFree(&term);
-  }else{
-    Fts5Buffer term;              /* Current term read from page */
-    int szLeaf;                   /* Offset of pgidx in a[] */
-    int iPgidxOff;
-    int iPgidxPrev = 0;           /* Previous value read from pgidx */
-    int iTermOff = 0;
-    int iRowidOff = 0;
-    int iOff;
-    int nDoclist;
-
-    memset(&term, 0, sizeof(Fts5Buffer));
-
-    if( n<4 ){
-      tdsqlite3Fts5BufferSet(&rc, &s, 7, (const u8*)"corrupt");
-      goto decode_out;
-    }else{
-      iRowidOff = fts5GetU16(&a[0]);
-      iPgidxOff = szLeaf = fts5GetU16(&a[2]);
-      if( iPgidxOff<n ){
-        fts5GetVarint32(&a[iPgidxOff], iTermOff);
-      }else if( iPgidxOff>n ){
-        rc = FTS5_CORRUPT;
-        goto decode_out;
-      }
-    }
-
-    /* Decode the position list tail at the start of the page */
-    if( iRowidOff!=0 ){
-      iOff = iRowidOff;
-    }else if( iTermOff!=0 ){
-      iOff = iTermOff;
-    }else{
-      iOff = szLeaf;
-    }
-    if( iOff>n ){
-      rc = FTS5_CORRUPT;
-      goto decode_out;
-    }
-    fts5DecodePoslist(&rc, &s, &a[4], iOff-4);
-
-    /* Decode any more doclist data that appears on the page before the
-    ** first term. */
-    nDoclist = (iTermOff ? iTermOff : szLeaf) - iOff;
-    if( nDoclist+iOff>n ){
-      rc = FTS5_CORRUPT;
-      goto decode_out;
-    }
-    fts5DecodeDoclist(&rc, &s, &a[iOff], nDoclist);
-
-    while( iPgidxOff<n && rc==SQLITE_OK ){
-      int bFirst = (iPgidxOff==szLeaf);     /* True for first term on page */
-      int nByte;                            /* Bytes of data */
-      int iEnd;
-      
-      iPgidxOff += fts5GetVarint32(&a[iPgidxOff], nByte);
-      iPgidxPrev += nByte;
-      iOff = iPgidxPrev;
-
-      if( iPgidxOff<n ){
-        fts5GetVarint32(&a[iPgidxOff], nByte);
-        iEnd = iPgidxPrev + nByte;
-      }else{
-        iEnd = szLeaf;
-      }
-      if( iEnd>szLeaf ){
-        rc = FTS5_CORRUPT;
-        break;
-      }
-
-      if( bFirst==0 ){
-        iOff += fts5GetVarint32(&a[iOff], nByte);
-        if( nByte>term.n ){
-          rc = FTS5_CORRUPT;
-          break;
-        }
-        term.n = nByte;
-      }
-      iOff += fts5GetVarint32(&a[iOff], nByte);
-      if( iOff+nByte>n ){
-        rc = FTS5_CORRUPT;
-        break;
-      }
-      fts5BufferAppendBlob(&rc, &term, nByte, &a[iOff]);
-      iOff += nByte;
-
-      tdsqlite3Fts5BufferAppendPrintf(
-          &rc, &s, " term=%.*s", term.n, (const char*)term.p
-      );
-      iOff += fts5DecodeDoclist(&rc, &s, &a[iOff], iEnd-iOff);
-    }
-
-    fts5BufferFree(&term);
-  }
-  
- decode_out:
-  tdsqlite3_free(a);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_result_text(pCtx, (const char*)s.p, s.n, SQLITE_TRANSIENT);
-  }else{
-    tdsqlite3_result_error_code(pCtx, rc);
-  }
-  fts5BufferFree(&s);
-}
-
-/*
-** The implementation of user-defined scalar function fts5_rowid().
-*/
-static void fts5RowidFunction(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args (always 2) */
-  tdsqlite3_value **apVal           /* Function arguments */
-){
-  const char *zArg;
-  if( nArg==0 ){
-    tdsqlite3_result_error(pCtx, "should be: fts5_rowid(subject, ....)", -1);
-  }else{
-    zArg = (const char*)tdsqlite3_value_text(apVal[0]);
-    if( 0==tdsqlite3_stricmp(zArg, "segment") ){
-      i64 iRowid;
-      int segid, pgno;
-      if( nArg!=3 ){
-        tdsqlite3_result_error(pCtx, 
-            "should be: fts5_rowid('segment', segid, pgno))", -1
-        );
-      }else{
-        segid = tdsqlite3_value_int(apVal[1]);
-        pgno = tdsqlite3_value_int(apVal[2]);
-        iRowid = FTS5_SEGMENT_ROWID(segid, pgno);
-        tdsqlite3_result_int64(pCtx, iRowid);
-      }
-    }else{
-      tdsqlite3_result_error(pCtx, 
-        "first arg to fts5_rowid() must be 'segment'" , -1
-      );
-    }
-  }
-}
-
-/*
-** This is called as part of registering the FTS5 module with database
-** connection db. It registers several user-defined scalar functions useful
-** with FTS5.
-**
-** If successful, SQLITE_OK is returned. If an error occurs, some other
-** SQLite error code is returned instead.
-*/
-static int tdsqlite3Fts5IndexInit(tdsqlite3 *db){
-  int rc = tdsqlite3_create_function(
-      db, "fts5_decode", 2, SQLITE_UTF8, 0, fts5DecodeFunction, 0, 0
-  );
-
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_create_function(
-        db, "fts5_decode_none", 2, 
-        SQLITE_UTF8, (void*)db, fts5DecodeFunction, 0, 0
-    );
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3_create_function(
-        db, "fts5_rowid", -1, SQLITE_UTF8, 0, fts5RowidFunction, 0, 0
-    );
-  }
-  return rc;
-}
-
-
-static int tdsqlite3Fts5IndexReset(Fts5Index *p){
-  assert( p->pStruct==0 || p->iStructVersion!=0 );
-  if( fts5IndexDataVersion(p)!=p->iStructVersion ){
-    fts5StructureInvalidate(p);
-  }
-  return fts5IndexReturn(p);
-}
-
-/*
-** 2014 Jun 09
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This is an SQLite module implementing full-text search.
-*/
-
-
-/* #include "fts5Int.h" */
-
-/*
-** This variable is set to false when running tests for which the on disk
-** structures should not be corrupt. Otherwise, true. If it is false, extra
-** assert() conditions in the fts5 code are activated - conditions that are
-** only true if it is guaranteed that the fts5 database is not corrupt.
-*/
-SQLITE_API int tdsqlite3_fts5_may_be_corrupt = 1;
-
-
-typedef struct Fts5Auxdata Fts5Auxdata;
-typedef struct Fts5Auxiliary Fts5Auxiliary;
-typedef struct Fts5Cursor Fts5Cursor;
-typedef struct Fts5FullTable Fts5FullTable;
-typedef struct Fts5Sorter Fts5Sorter;
-typedef struct Fts5TokenizerModule Fts5TokenizerModule;
-
-/*
-** NOTES ON TRANSACTIONS: 
-**
-** SQLite invokes the following virtual table methods as transactions are 
-** opened and closed by the user:
-**
-**     xBegin():    Start of a new transaction.
-**     xSync():     Initial part of two-phase commit.
-**     xCommit():   Final part of two-phase commit.
-**     xRollback(): Rollback the transaction.
-**
-** Anything that is required as part of a commit that may fail is performed
-** in the xSync() callback. Current versions of SQLite ignore any errors 
-** returned by xCommit().
-**
-** And as sub-transactions are opened/closed:
-**
-**     xSavepoint(int S):  Open savepoint S.
-**     xRelease(int S):    Commit and close savepoint S.
-**     xRollbackTo(int S): Rollback to start of savepoint S.
-**
-** During a write-transaction the fts5_index.c module may cache some data 
-** in-memory. It is flushed to disk whenever xSync(), xRelease() or
-** xSavepoint() is called. And discarded whenever xRollback() or xRollbackTo() 
-** is called.
-**
-** Additionally, if SQLITE_DEBUG is defined, an instance of the following
-** structure is used to record the current transaction state. This information
-** is not required, but it is used in the assert() statements executed by
-** function fts5CheckTransactionState() (see below).
-*/
-struct Fts5TransactionState {
-  int eState;                     /* 0==closed, 1==open, 2==synced */
-  int iSavepoint;                 /* Number of open savepoints (0 -> none) */
-};
-
-/*
-** A single object of this type is allocated when the FTS5 module is 
-** registered with a database handle. It is used to store pointers to
-** all registered FTS5 extensions - tokenizers and auxiliary functions.
-*/
-struct Fts5Global {
-  fts5_api api;                   /* User visible part of object (see fts5.h) */
-  tdsqlite3 *db;                    /* Associated database connection */ 
-  i64 iNextId;                    /* Used to allocate unique cursor ids */
-  Fts5Auxiliary *pAux;            /* First in list of all aux. functions */
-  Fts5TokenizerModule *pTok;      /* First in list of all tokenizer modules */
-  Fts5TokenizerModule *pDfltTok;  /* Default tokenizer module */
-  Fts5Cursor *pCsr;               /* First in list of all open cursors */
-};
-
-/*
-** Each auxiliary function registered with the FTS5 module is represented
-** by an object of the following type. All such objects are stored as part
-** of the Fts5Global.pAux list.
-*/
-struct Fts5Auxiliary {
-  Fts5Global *pGlobal;            /* Global context for this function */
-  char *zFunc;                    /* Function name (nul-terminated) */
-  void *pUserData;                /* User-data pointer */
-  fts5_extension_function xFunc;  /* Callback function */
-  void (*xDestroy)(void*);        /* Destructor function */
-  Fts5Auxiliary *pNext;           /* Next registered auxiliary function */
-};
-
-/*
-** Each tokenizer module registered with the FTS5 module is represented
-** by an object of the following type. All such objects are stored as part
-** of the Fts5Global.pTok list.
-*/
-struct Fts5TokenizerModule {
-  char *zName;                    /* Name of tokenizer */
-  void *pUserData;                /* User pointer passed to xCreate() */
-  fts5_tokenizer x;               /* Tokenizer functions */
-  void (*xDestroy)(void*);        /* Destructor function */
-  Fts5TokenizerModule *pNext;     /* Next registered tokenizer module */
-};
-
-struct Fts5FullTable {
-  Fts5Table p;                    /* Public class members from fts5Int.h */
-  Fts5Storage *pStorage;          /* Document store */
-  Fts5Global *pGlobal;            /* Global (connection wide) data */
-  Fts5Cursor *pSortCsr;           /* Sort data from this cursor */
-#ifdef SQLITE_DEBUG
-  struct Fts5TransactionState ts;
-#endif
-};
-
-struct Fts5MatchPhrase {
-  Fts5Buffer *pPoslist;           /* Pointer to current poslist */
-  int nTerm;                      /* Size of phrase in terms */
-};
-
-/*
-** pStmt:
-**   SELECT rowid, <fts> FROM <fts> ORDER BY +rank;
-**
-** aIdx[]:
-**   There is one entry in the aIdx[] array for each phrase in the query,
-**   the value of which is the offset within aPoslist[] following the last 
-**   byte of the position list for the corresponding phrase.
-*/
-struct Fts5Sorter {
-  tdsqlite3_stmt *pStmt;
-  i64 iRowid;                     /* Current rowid */
-  const u8 *aPoslist;             /* Position lists for current row */
-  int nIdx;                       /* Number of entries in aIdx[] */
-  int aIdx[1];                    /* Offsets into aPoslist for current row */
-};
-
-
-/*
-** Virtual-table cursor object.
-**
-** iSpecial:
-**   If this is a 'special' query (refer to function fts5SpecialMatch()), 
-**   then this variable contains the result of the query. 
-**
-** iFirstRowid, iLastRowid:
-**   These variables are only used for FTS5_PLAN_MATCH cursors. Assuming the
-**   cursor iterates in ascending order of rowids, iFirstRowid is the lower
-**   limit of rowids to return, and iLastRowid the upper. In other words, the
-**   WHERE clause in the user's query might have been:
-**
-**       <tbl> MATCH <expr> AND rowid BETWEEN $iFirstRowid AND $iLastRowid
-**
-**   If the cursor iterates in descending order of rowid, iFirstRowid
-**   is the upper limit (i.e. the "first" rowid visited) and iLastRowid
-**   the lower.
-*/
-struct Fts5Cursor {
-  tdsqlite3_vtab_cursor base;       /* Base class used by SQLite core */
-  Fts5Cursor *pNext;              /* Next cursor in Fts5Cursor.pCsr list */
-  int *aColumnSize;               /* Values for xColumnSize() */
-  i64 iCsrId;                     /* Cursor id */
-
-  /* Zero from this point onwards on cursor reset */
-  int ePlan;                      /* FTS5_PLAN_XXX value */
-  int bDesc;                      /* True for "ORDER BY rowid DESC" queries */
-  i64 iFirstRowid;                /* Return no rowids earlier than this */
-  i64 iLastRowid;                 /* Return no rowids later than this */
-  tdsqlite3_stmt *pStmt;            /* Statement used to read %_content */
-  Fts5Expr *pExpr;                /* Expression for MATCH queries */
-  Fts5Sorter *pSorter;            /* Sorter for "ORDER BY rank" queries */
-  int csrflags;                   /* Mask of cursor flags (see below) */
-  i64 iSpecial;                   /* Result of special query */
-
-  /* "rank" function. Populated on demand from vtab.xColumn(). */
-  char *zRank;                    /* Custom rank function */
-  char *zRankArgs;                /* Custom rank function args */
-  Fts5Auxiliary *pRank;           /* Rank callback (or NULL) */
-  int nRankArg;                   /* Number of trailing arguments for rank() */
-  tdsqlite3_value **apRankArg;      /* Array of trailing arguments */
-  tdsqlite3_stmt *pRankArgStmt;     /* Origin of objects in apRankArg[] */
-
-  /* Auxiliary data storage */
-  Fts5Auxiliary *pAux;            /* Currently executing extension function */
-  Fts5Auxdata *pAuxdata;          /* First in linked list of saved aux-data */
-
-  /* Cache used by auxiliary functions xInst() and xInstCount() */
-  Fts5PoslistReader *aInstIter;   /* One for each phrase */
-  int nInstAlloc;                 /* Size of aInst[] array (entries / 3) */
-  int nInstCount;                 /* Number of phrase instances */
-  int *aInst;                     /* 3 integers per phrase instance */
-};
-
-/*
-** Bits that make up the "idxNum" parameter passed indirectly by 
-** xBestIndex() to xFilter().
-*/
-#define FTS5_BI_MATCH        0x0001         /* <tbl> MATCH ? */
-#define FTS5_BI_RANK         0x0002         /* rank MATCH ? */
-#define FTS5_BI_ROWID_EQ     0x0004         /* rowid == ? */
-#define FTS5_BI_ROWID_LE     0x0008         /* rowid <= ? */
-#define FTS5_BI_ROWID_GE     0x0010         /* rowid >= ? */
-
-#define FTS5_BI_ORDER_RANK   0x0020
-#define FTS5_BI_ORDER_ROWID  0x0040
-#define FTS5_BI_ORDER_DESC   0x0080
-
-/*
-** Values for Fts5Cursor.csrflags
-*/
-#define FTS5CSR_EOF               0x01
-#define FTS5CSR_REQUIRE_CONTENT   0x02
-#define FTS5CSR_REQUIRE_DOCSIZE   0x04
-#define FTS5CSR_REQUIRE_INST      0x08
-#define FTS5CSR_FREE_ZRANK        0x10
-#define FTS5CSR_REQUIRE_RESEEK    0x20
-#define FTS5CSR_REQUIRE_POSLIST   0x40
-
-#define BitFlagAllTest(x,y) (((x) & (y))==(y))
-#define BitFlagTest(x,y)    (((x) & (y))!=0)
-
-
-/*
-** Macros to Set(), Clear() and Test() cursor flags.
-*/
-#define CsrFlagSet(pCsr, flag)   ((pCsr)->csrflags |= (flag))
-#define CsrFlagClear(pCsr, flag) ((pCsr)->csrflags &= ~(flag))
-#define CsrFlagTest(pCsr, flag)  ((pCsr)->csrflags & (flag))
-
-struct Fts5Auxdata {
-  Fts5Auxiliary *pAux;            /* Extension to which this belongs */
-  void *pPtr;                     /* Pointer value */
-  void(*xDelete)(void*);          /* Destructor */
-  Fts5Auxdata *pNext;             /* Next object in linked list */
-};
-
-#ifdef SQLITE_DEBUG
-#define FTS5_BEGIN      1
-#define FTS5_SYNC       2
-#define FTS5_COMMIT     3
-#define FTS5_ROLLBACK   4
-#define FTS5_SAVEPOINT  5
-#define FTS5_RELEASE    6
-#define FTS5_ROLLBACKTO 7
-static void fts5CheckTransactionState(Fts5FullTable *p, int op, int iSavepoint){
-  switch( op ){
-    case FTS5_BEGIN:
-      assert( p->ts.eState==0 );
-      p->ts.eState = 1;
-      p->ts.iSavepoint = -1;
-      break;
-
-    case FTS5_SYNC:
-      assert( p->ts.eState==1 );
-      p->ts.eState = 2;
-      break;
-
-    case FTS5_COMMIT:
-      assert( p->ts.eState==2 );
-      p->ts.eState = 0;
-      break;
-
-    case FTS5_ROLLBACK:
-      assert( p->ts.eState==1 || p->ts.eState==2 || p->ts.eState==0 );
-      p->ts.eState = 0;
-      break;
-
-    case FTS5_SAVEPOINT:
-      assert( p->ts.eState==1 );
-      assert( iSavepoint>=0 );
-      assert( iSavepoint>=p->ts.iSavepoint );
-      p->ts.iSavepoint = iSavepoint;
-      break;
-      
-    case FTS5_RELEASE:
-      assert( p->ts.eState==1 );
-      assert( iSavepoint>=0 );
-      assert( iSavepoint<=p->ts.iSavepoint );
-      p->ts.iSavepoint = iSavepoint-1;
-      break;
-
-    case FTS5_ROLLBACKTO:
-      assert( p->ts.eState==1 );
-      assert( iSavepoint>=-1 );
-      /* The following assert() can fail if another vtab strikes an error
-      ** within an xSavepoint() call then SQLite calls xRollbackTo() - without
-      ** having called xSavepoint() on this vtab.  */
-      /* assert( iSavepoint<=p->ts.iSavepoint ); */
-      p->ts.iSavepoint = iSavepoint;
-      break;
-  }
-}
-#else
-# define fts5CheckTransactionState(x,y,z)
-#endif
-
-/*
-** Return true if pTab is a contentless table.
-*/
-static int fts5IsContentless(Fts5FullTable *pTab){
-  return pTab->p.pConfig->eContent==FTS5_CONTENT_NONE;
-}
-
-/*
-** Delete a virtual table handle allocated by fts5InitVtab(). 
-*/
-static void fts5FreeVtab(Fts5FullTable *pTab){
-  if( pTab ){
-    tdsqlite3Fts5IndexClose(pTab->p.pIndex);
-    tdsqlite3Fts5StorageClose(pTab->pStorage);
-    tdsqlite3Fts5ConfigFree(pTab->p.pConfig);
-    tdsqlite3_free(pTab);
-  }
-}
-
-/*
-** The xDisconnect() virtual table method.
-*/
-static int fts5DisconnectMethod(tdsqlite3_vtab *pVtab){
-  fts5FreeVtab((Fts5FullTable*)pVtab);
-  return SQLITE_OK;
-}
-
-/*
-** The xDestroy() virtual table method.
-*/
-static int fts5DestroyMethod(tdsqlite3_vtab *pVtab){
-  Fts5Table *pTab = (Fts5Table*)pVtab;
-  int rc = tdsqlite3Fts5DropAll(pTab->pConfig);
-  if( rc==SQLITE_OK ){
-    fts5FreeVtab((Fts5FullTable*)pVtab);
-  }
-  return rc;
-}
-
-/*
-** This function is the implementation of both the xConnect and xCreate
-** methods of the FTS3 virtual table.
-**
-** The argv[] array contains the following:
-**
-**   argv[0]   -> module name  ("fts5")
-**   argv[1]   -> database name
-**   argv[2]   -> table name
-**   argv[...] -> "column name" and other module argument fields.
-*/
-static int fts5InitVtab(
-  int bCreate,                    /* True for xCreate, false for xConnect */
-  tdsqlite3 *db,                    /* The SQLite database connection */
-  void *pAux,                     /* Hash table containing tokenizers */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVTab,          /* Write the resulting vtab structure here */
-  char **pzErr                    /* Write any error message here */
-){
-  Fts5Global *pGlobal = (Fts5Global*)pAux;
-  const char **azConfig = (const char**)argv;
-  int rc = SQLITE_OK;             /* Return code */
-  Fts5Config *pConfig = 0;        /* Results of parsing argc/argv */
-  Fts5FullTable *pTab = 0;        /* New virtual table object */
-
-  /* Allocate the new vtab object and parse the configuration */
-  pTab = (Fts5FullTable*)tdsqlite3Fts5MallocZero(&rc, sizeof(Fts5FullTable));
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5ConfigParse(pGlobal, db, argc, azConfig, &pConfig, pzErr);
-    assert( (rc==SQLITE_OK && *pzErr==0) || pConfig==0 );
-  }
-  if( rc==SQLITE_OK ){
-    pTab->p.pConfig = pConfig;
-    pTab->pGlobal = pGlobal;
-  }
-
-  /* Open the index sub-system */
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5IndexOpen(pConfig, bCreate, &pTab->p.pIndex, pzErr);
-  }
-
-  /* Open the storage sub-system */
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5StorageOpen(
-        pConfig, pTab->p.pIndex, bCreate, &pTab->pStorage, pzErr
-    );
-  }
-
-  /* Call tdsqlite3_declare_vtab() */
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5ConfigDeclareVtab(pConfig);
-  }
-
-  /* Load the initial configuration */
-  if( rc==SQLITE_OK ){
-    assert( pConfig->pzErrmsg==0 );
-    pConfig->pzErrmsg = pzErr;
-    rc = tdsqlite3Fts5IndexLoadConfig(pTab->p.pIndex);
-    tdsqlite3Fts5IndexRollback(pTab->p.pIndex);
-    pConfig->pzErrmsg = 0;
-  }
-
-  if( rc!=SQLITE_OK ){
-    fts5FreeVtab(pTab);
-    pTab = 0;
-  }else if( bCreate ){
-    fts5CheckTransactionState(pTab, FTS5_BEGIN, 0);
-  }
-  *ppVTab = (tdsqlite3_vtab*)pTab;
-  return rc;
-}
-
-/*
-** The xConnect() and xCreate() methods for the virtual table. All the
-** work is done in function fts5InitVtab().
-*/
-static int fts5ConnectMethod(
-  tdsqlite3 *db,                    /* Database connection */
-  void *pAux,                     /* Pointer to tokenizer hash table */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVtab,          /* OUT: New tdsqlite3_vtab object */
-  char **pzErr                    /* OUT: tdsqlite3_malloc'd error message */
-){
-  return fts5InitVtab(0, db, pAux, argc, argv, ppVtab, pzErr);
-}
-static int fts5CreateMethod(
-  tdsqlite3 *db,                    /* Database connection */
-  void *pAux,                     /* Pointer to tokenizer hash table */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVtab,          /* OUT: New tdsqlite3_vtab object */
-  char **pzErr                    /* OUT: tdsqlite3_malloc'd error message */
-){
-  return fts5InitVtab(1, db, pAux, argc, argv, ppVtab, pzErr);
-}
-
-/*
-** The different query plans.
-*/
-#define FTS5_PLAN_MATCH          1       /* (<tbl> MATCH ?) */
-#define FTS5_PLAN_SOURCE         2       /* A source cursor for SORTED_MATCH */
-#define FTS5_PLAN_SPECIAL        3       /* An internal query */
-#define FTS5_PLAN_SORTED_MATCH   4       /* (<tbl> MATCH ? ORDER BY rank) */
-#define FTS5_PLAN_SCAN           5       /* No usable constraint */
-#define FTS5_PLAN_ROWID          6       /* (rowid = ?) */
-
-/*
-** Set the SQLITE_INDEX_SCAN_UNIQUE flag in pIdxInfo->flags. Unless this
-** extension is currently being used by a version of SQLite too old to
-** support index-info flags. In that case this function is a no-op.
-*/
-static void fts5SetUniqueFlag(tdsqlite3_index_info *pIdxInfo){
-#if SQLITE_VERSION_NUMBER>=3008012
-#ifndef SQLITE_CORE
-  if( tdsqlite3_libversion_number()>=3008012 )
-#endif
-  {
-    pIdxInfo->idxFlags |= SQLITE_INDEX_SCAN_UNIQUE;
-  }
-#endif
-}
-
-/*
-** Implementation of the xBestIndex method for FTS5 tables. Within the 
-** WHERE constraint, it searches for the following:
-**
-**   1. A MATCH constraint against the table column.
-**   2. A MATCH constraint against the "rank" column.
-**   3. A MATCH constraint against some other column.
-**   4. An == constraint against the rowid column.
-**   5. A < or <= constraint against the rowid column.
-**   6. A > or >= constraint against the rowid column.
-**
-** Within the ORDER BY, the following are supported:
-**
-**   5. ORDER BY rank [ASC|DESC]
-**   6. ORDER BY rowid [ASC|DESC]
-**
-** Information for the xFilter call is passed via both the idxNum and 
-** idxStr variables. Specifically, idxNum is a bitmask of the following
-** flags used to encode the ORDER BY clause:
-**
-**     FTS5_BI_ORDER_RANK
-**     FTS5_BI_ORDER_ROWID
-**     FTS5_BI_ORDER_DESC
-**
-** idxStr is used to encode data from the WHERE clause. For each argument
-** passed to the xFilter method, the following is appended to idxStr:
-**
-**   Match against table column:            "m"
-**   Match against rank column:             "r"
-**   Match against other column:            "<column-number>"
-**   Equality constraint against the rowid: "="
-**   A < or <= against the rowid:           "<"
-**   A > or >= against the rowid:           ">"
-**
-** This function ensures that there is at most one "r" or "=". And that if
-** there exists an "=" then there is no "<" or ">".
-**
-** Costs are assigned as follows:
-**
-**  a) If an unusable MATCH operator is present in the WHERE clause, the
-**     cost is unconditionally set to 1e50 (a really big number).
-**
-**  a) If a MATCH operator is present, the cost depends on the other
-**     constraints also present. As follows:
-**
-**       * No other constraints:         cost=1000.0
-**       * One rowid range constraint:   cost=750.0
-**       * Both rowid range constraints: cost=500.0
-**       * An == rowid constraint:       cost=100.0
-**
-**  b) Otherwise, if there is no MATCH:
-**
-**       * No other constraints:         cost=1000000.0
-**       * One rowid range constraint:   cost=750000.0
-**       * Both rowid range constraints: cost=250000.0
-**       * An == rowid constraint:       cost=10.0
-**
-** Costs are not modified by the ORDER BY clause.
-*/
-static int fts5BestIndexMethod(tdsqlite3_vtab *pVTab, tdsqlite3_index_info *pInfo){
-  Fts5Table *pTab = (Fts5Table*)pVTab;
-  Fts5Config *pConfig = pTab->pConfig;
-  const int nCol = pConfig->nCol;
-  int idxFlags = 0;               /* Parameter passed through to xFilter() */
-  int i;
-
-  char *idxStr;
-  int iIdxStr = 0;
-  int iCons = 0;
-
-  int bSeenEq = 0;
-  int bSeenGt = 0;
-  int bSeenLt = 0;
-  int bSeenMatch = 0;
-  int bSeenRank = 0;
-
-
-  assert( SQLITE_INDEX_CONSTRAINT_EQ<SQLITE_INDEX_CONSTRAINT_MATCH );
-  assert( SQLITE_INDEX_CONSTRAINT_GT<SQLITE_INDEX_CONSTRAINT_MATCH );
-  assert( SQLITE_INDEX_CONSTRAINT_LE<SQLITE_INDEX_CONSTRAINT_MATCH );
-  assert( SQLITE_INDEX_CONSTRAINT_GE<SQLITE_INDEX_CONSTRAINT_MATCH );
-  assert( SQLITE_INDEX_CONSTRAINT_LE<SQLITE_INDEX_CONSTRAINT_MATCH );
-
-  if( pConfig->bLock ){
-    pTab->base.zErrMsg = tdsqlite3_mprintf(
-        "recursively defined fts5 content table"
-    );
-    return SQLITE_ERROR;
-  }
-
-  idxStr = (char*)tdsqlite3_malloc(pInfo->nConstraint * 6 + 1);
-  if( idxStr==0 ) return SQLITE_NOMEM;
-  pInfo->idxStr = idxStr;
-  pInfo->needToFreeIdxStr = 1;
-
-  for(i=0; i<pInfo->nConstraint; i++){
-    struct tdsqlite3_index_constraint *p = &pInfo->aConstraint[i];
-    int iCol = p->iColumn;
-    if( p->op==SQLITE_INDEX_CONSTRAINT_MATCH
-     || (p->op==SQLITE_INDEX_CONSTRAINT_EQ && iCol>=nCol)
-    ){
-      /* A MATCH operator or equivalent */
-      if( p->usable==0 || iCol<0 ){
-        /* As there exists an unusable MATCH constraint this is an 
-        ** unusable plan. Set a prohibitively high cost. */
-        pInfo->estimatedCost = 1e50;
-        assert( iIdxStr < pInfo->nConstraint*6 + 1 );
-        idxStr[iIdxStr] = 0;
-        return SQLITE_OK;
-      }else{
-        if( iCol==nCol+1 ){
-          if( bSeenRank ) continue;
-          idxStr[iIdxStr++] = 'r';
-          bSeenRank = 1;
-        }else{
-          bSeenMatch = 1;
-          idxStr[iIdxStr++] = 'm';
-          if( iCol<nCol ){
-            tdsqlite3_snprintf(6, &idxStr[iIdxStr], "%d", iCol);
-            idxStr += strlen(&idxStr[iIdxStr]);
-            assert( idxStr[iIdxStr]=='\0' );
-          }
-        }
-        pInfo->aConstraintUsage[i].argvIndex = ++iCons;
-        pInfo->aConstraintUsage[i].omit = 1;
-      }
-    }
-    else if( p->usable && bSeenEq==0 
-      && p->op==SQLITE_INDEX_CONSTRAINT_EQ && iCol<0 
-    ){
-      idxStr[iIdxStr++] = '=';
-      bSeenEq = 1;
-      pInfo->aConstraintUsage[i].argvIndex = ++iCons;
-    }
-  }
-
-  if( bSeenEq==0 ){
-    for(i=0; i<pInfo->nConstraint; i++){
-      struct tdsqlite3_index_constraint *p = &pInfo->aConstraint[i];
-      if( p->iColumn<0 && p->usable ){
-        int op = p->op;
-        if( op==SQLITE_INDEX_CONSTRAINT_LT || op==SQLITE_INDEX_CONSTRAINT_LE ){
-          if( bSeenLt ) continue;
-          idxStr[iIdxStr++] = '<';
-          pInfo->aConstraintUsage[i].argvIndex = ++iCons;
-          bSeenLt = 1;
-        }else
-        if( op==SQLITE_INDEX_CONSTRAINT_GT || op==SQLITE_INDEX_CONSTRAINT_GE ){
-          if( bSeenGt ) continue;
-          idxStr[iIdxStr++] = '>';
-          pInfo->aConstraintUsage[i].argvIndex = ++iCons;
-          bSeenGt = 1;
-        }
-      }
-    }
-  }
-  idxStr[iIdxStr] = '\0';
-
-  /* Set idxFlags flags for the ORDER BY clause */
-  if( pInfo->nOrderBy==1 ){
-    int iSort = pInfo->aOrderBy[0].iColumn;
-    if( iSort==(pConfig->nCol+1) && bSeenMatch ){
-      idxFlags |= FTS5_BI_ORDER_RANK;
-    }else if( iSort==-1 ){
-      idxFlags |= FTS5_BI_ORDER_ROWID;
-    }
-    if( BitFlagTest(idxFlags, FTS5_BI_ORDER_RANK|FTS5_BI_ORDER_ROWID) ){
-      pInfo->orderByConsumed = 1;
-      if( pInfo->aOrderBy[0].desc ){
-        idxFlags |= FTS5_BI_ORDER_DESC;
-      }
-    }
-  }
-
-  /* Calculate the estimated cost based on the flags set in idxFlags. */
-  if( bSeenEq ){
-    pInfo->estimatedCost = bSeenMatch ? 100.0 : 10.0;
-    if( bSeenMatch==0 ) fts5SetUniqueFlag(pInfo);
-  }else if( bSeenLt && bSeenGt ){
-    pInfo->estimatedCost = bSeenMatch ? 500.0 : 250000.0;
-  }else if( bSeenLt || bSeenGt ){
-    pInfo->estimatedCost = bSeenMatch ? 750.0 : 750000.0;
-  }else{
-    pInfo->estimatedCost = bSeenMatch ? 1000.0 : 1000000.0;
-  }
-
-  pInfo->idxNum = idxFlags;
-  return SQLITE_OK;
-}
-
-static int fts5NewTransaction(Fts5FullTable *pTab){
-  Fts5Cursor *pCsr;
-  for(pCsr=pTab->pGlobal->pCsr; pCsr; pCsr=pCsr->pNext){
-    if( pCsr->base.pVtab==(tdsqlite3_vtab*)pTab ) return SQLITE_OK;
-  }
-  return tdsqlite3Fts5StorageReset(pTab->pStorage);
-}
-
-/*
-** Implementation of xOpen method.
-*/
-static int fts5OpenMethod(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCsr){
-  Fts5FullTable *pTab = (Fts5FullTable*)pVTab;
-  Fts5Config *pConfig = pTab->p.pConfig;
-  Fts5Cursor *pCsr = 0;           /* New cursor object */
-  tdsqlite3_int64 nByte;            /* Bytes of space to allocate */
-  int rc;                         /* Return code */
-
-  rc = fts5NewTransaction(pTab);
-  if( rc==SQLITE_OK ){
-    nByte = sizeof(Fts5Cursor) + pConfig->nCol * sizeof(int);
-    pCsr = (Fts5Cursor*)tdsqlite3_malloc64(nByte);
-    if( pCsr ){
-      Fts5Global *pGlobal = pTab->pGlobal;
-      memset(pCsr, 0, (size_t)nByte);
-      pCsr->aColumnSize = (int*)&pCsr[1];
-      pCsr->pNext = pGlobal->pCsr;
-      pGlobal->pCsr = pCsr;
-      pCsr->iCsrId = ++pGlobal->iNextId;
-    }else{
-      rc = SQLITE_NOMEM;
-    }
-  }
-  *ppCsr = (tdsqlite3_vtab_cursor*)pCsr;
-  return rc;
-}
-
-static int fts5StmtType(Fts5Cursor *pCsr){
-  if( pCsr->ePlan==FTS5_PLAN_SCAN ){
-    return (pCsr->bDesc) ? FTS5_STMT_SCAN_DESC : FTS5_STMT_SCAN_ASC;
-  }
-  return FTS5_STMT_LOOKUP;
-}
-
-/*
-** This function is called after the cursor passed as the only argument
-** is moved to point at a different row. It clears all cached data 
-** specific to the previous row stored by the cursor object.
-*/
-static void fts5CsrNewrow(Fts5Cursor *pCsr){
-  CsrFlagSet(pCsr, 
-      FTS5CSR_REQUIRE_CONTENT 
-    | FTS5CSR_REQUIRE_DOCSIZE 
-    | FTS5CSR_REQUIRE_INST 
-    | FTS5CSR_REQUIRE_POSLIST 
-  );
-}
-
-static void fts5FreeCursorComponents(Fts5Cursor *pCsr){
-  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
-  Fts5Auxdata *pData;
-  Fts5Auxdata *pNext;
-
-  tdsqlite3_free(pCsr->aInstIter);
-  tdsqlite3_free(pCsr->aInst);
-  if( pCsr->pStmt ){
-    int eStmt = fts5StmtType(pCsr);
-    tdsqlite3Fts5StorageStmtRelease(pTab->pStorage, eStmt, pCsr->pStmt);
-  }
-  if( pCsr->pSorter ){
-    Fts5Sorter *pSorter = pCsr->pSorter;
-    tdsqlite3_finalize(pSorter->pStmt);
-    tdsqlite3_free(pSorter);
-  }
-
-  if( pCsr->ePlan!=FTS5_PLAN_SOURCE ){
-    tdsqlite3Fts5ExprFree(pCsr->pExpr);
-  }
-
-  for(pData=pCsr->pAuxdata; pData; pData=pNext){
-    pNext = pData->pNext;
-    if( pData->xDelete ) pData->xDelete(pData->pPtr);
-    tdsqlite3_free(pData);
-  }
-
-  tdsqlite3_finalize(pCsr->pRankArgStmt);
-  tdsqlite3_free(pCsr->apRankArg);
-
-  if( CsrFlagTest(pCsr, FTS5CSR_FREE_ZRANK) ){
-    tdsqlite3_free(pCsr->zRank);
-    tdsqlite3_free(pCsr->zRankArgs);
-  }
-
-  tdsqlite3Fts5IndexCloseReader(pTab->p.pIndex);
-  memset(&pCsr->ePlan, 0, sizeof(Fts5Cursor) - ((u8*)&pCsr->ePlan - (u8*)pCsr));
-}
-
-
-/*
-** Close the cursor.  For additional information see the documentation
-** on the xClose method of the virtual table interface.
-*/
-static int fts5CloseMethod(tdsqlite3_vtab_cursor *pCursor){
-  if( pCursor ){
-    Fts5FullTable *pTab = (Fts5FullTable*)(pCursor->pVtab);
-    Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
-    Fts5Cursor **pp;
-
-    fts5FreeCursorComponents(pCsr);
-    /* Remove the cursor from the Fts5Global.pCsr list */
-    for(pp=&pTab->pGlobal->pCsr; (*pp)!=pCsr; pp=&(*pp)->pNext);
-    *pp = pCsr->pNext;
-
-    tdsqlite3_free(pCsr);
-  }
-  return SQLITE_OK;
-}
-
-static int fts5SorterNext(Fts5Cursor *pCsr){
-  Fts5Sorter *pSorter = pCsr->pSorter;
-  int rc;
-
-  rc = tdsqlite3_step(pSorter->pStmt);
-  if( rc==SQLITE_DONE ){
-    rc = SQLITE_OK;
-    CsrFlagSet(pCsr, FTS5CSR_EOF);
-  }else if( rc==SQLITE_ROW ){
-    const u8 *a;
-    const u8 *aBlob;
-    int nBlob;
-    int i;
-    int iOff = 0;
-    rc = SQLITE_OK;
-
-    pSorter->iRowid = tdsqlite3_column_int64(pSorter->pStmt, 0);
-    nBlob = tdsqlite3_column_bytes(pSorter->pStmt, 1);
-    aBlob = a = tdsqlite3_column_blob(pSorter->pStmt, 1);
-
-    /* nBlob==0 in detail=none mode. */
-    if( nBlob>0 ){
-      for(i=0; i<(pSorter->nIdx-1); i++){
-        int iVal;
-        a += fts5GetVarint32(a, iVal);
-        iOff += iVal;
-        pSorter->aIdx[i] = iOff;
-      }
-      pSorter->aIdx[i] = &aBlob[nBlob] - a;
-      pSorter->aPoslist = a;
-    }
-
-    fts5CsrNewrow(pCsr);
-  }
-
-  return rc;
-}
-
-
-/*
-** Set the FTS5CSR_REQUIRE_RESEEK flag on all FTS5_PLAN_MATCH cursors 
-** open on table pTab.
-*/
-static void fts5TripCursors(Fts5FullTable *pTab){
-  Fts5Cursor *pCsr;
-  for(pCsr=pTab->pGlobal->pCsr; pCsr; pCsr=pCsr->pNext){
-    if( pCsr->ePlan==FTS5_PLAN_MATCH
-     && pCsr->base.pVtab==(tdsqlite3_vtab*)pTab 
-    ){
-      CsrFlagSet(pCsr, FTS5CSR_REQUIRE_RESEEK);
-    }
-  }
-}
-
-/*
-** If the REQUIRE_RESEEK flag is set on the cursor passed as the first
-** argument, close and reopen all Fts5IndexIter iterators that the cursor 
-** is using. Then attempt to move the cursor to a rowid equal to or laster
-** (in the cursors sort order - ASC or DESC) than the current rowid. 
-**
-** If the new rowid is not equal to the old, set output parameter *pbSkip
-** to 1 before returning. Otherwise, leave it unchanged.
-**
-** Return SQLITE_OK if successful or if no reseek was required, or an 
-** error code if an error occurred.
-*/
-static int fts5CursorReseek(Fts5Cursor *pCsr, int *pbSkip){
-  int rc = SQLITE_OK;
-  assert( *pbSkip==0 );
-  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_RESEEK) ){
-    Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
-    int bDesc = pCsr->bDesc;
-    i64 iRowid = tdsqlite3Fts5ExprRowid(pCsr->pExpr);
-
-    rc = tdsqlite3Fts5ExprFirst(pCsr->pExpr, pTab->p.pIndex, iRowid, bDesc);
-    if( rc==SQLITE_OK &&  iRowid!=tdsqlite3Fts5ExprRowid(pCsr->pExpr) ){
-      *pbSkip = 1;
-    }
-
-    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_RESEEK);
-    fts5CsrNewrow(pCsr);
-    if( tdsqlite3Fts5ExprEof(pCsr->pExpr) ){
-      CsrFlagSet(pCsr, FTS5CSR_EOF);
-      *pbSkip = 1;
-    }
-  }
-  return rc;
-}
-
-
-/*
-** Advance the cursor to the next row in the table that matches the 
-** search criteria.
-**
-** Return SQLITE_OK if nothing goes wrong.  SQLITE_OK is returned
-** even if we reach end-of-file.  The fts5EofMethod() will be called
-** subsequently to determine whether or not an EOF was hit.
-*/
-static int fts5NextMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
-  int rc;
-
-  assert( (pCsr->ePlan<3)==
-          (pCsr->ePlan==FTS5_PLAN_MATCH || pCsr->ePlan==FTS5_PLAN_SOURCE) 
-  );
-  assert( !CsrFlagTest(pCsr, FTS5CSR_EOF) );
-
-  if( pCsr->ePlan<3 ){
-    int bSkip = 0;
-    if( (rc = fts5CursorReseek(pCsr, &bSkip)) || bSkip ) return rc;
-    rc = tdsqlite3Fts5ExprNext(pCsr->pExpr, pCsr->iLastRowid);
-    CsrFlagSet(pCsr, tdsqlite3Fts5ExprEof(pCsr->pExpr));
-    fts5CsrNewrow(pCsr);
-  }else{
-    switch( pCsr->ePlan ){
-      case FTS5_PLAN_SPECIAL: {
-        CsrFlagSet(pCsr, FTS5CSR_EOF);
-        rc = SQLITE_OK;
-        break;
-      }
-  
-      case FTS5_PLAN_SORTED_MATCH: {
-        rc = fts5SorterNext(pCsr);
-        break;
-      }
-  
-      default: {
-        Fts5Config *pConfig = ((Fts5Table*)pCursor->pVtab)->pConfig;
-        pConfig->bLock++;
-        rc = tdsqlite3_step(pCsr->pStmt);
-        pConfig->bLock--;
-        if( rc!=SQLITE_ROW ){
-          CsrFlagSet(pCsr, FTS5CSR_EOF);
-          rc = tdsqlite3_reset(pCsr->pStmt);
-          if( rc!=SQLITE_OK ){
-            pCursor->pVtab->zErrMsg = tdsqlite3_mprintf(
-                "%s", tdsqlite3_errmsg(pConfig->db)
-            );
-          }
-        }else{
-          rc = SQLITE_OK;
-        }
-        break;
-      }
-    }
-  }
-  
-  return rc;
-}
-
-
-static int fts5PrepareStatement(
-  tdsqlite3_stmt **ppStmt,
-  Fts5Config *pConfig, 
-  const char *zFmt,
-  ...
-){
-  tdsqlite3_stmt *pRet = 0;
-  int rc;
-  char *zSql;
-  va_list ap;
-
-  va_start(ap, zFmt);
-  zSql = tdsqlite3_vmprintf(zFmt, ap);
-  if( zSql==0 ){
-    rc = SQLITE_NOMEM; 
-  }else{
-    rc = tdsqlite3_prepare_v3(pConfig->db, zSql, -1, 
-                            SQLITE_PREPARE_PERSISTENT, &pRet, 0);
-    if( rc!=SQLITE_OK ){
-      *pConfig->pzErrmsg = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(pConfig->db));
-    }
-    tdsqlite3_free(zSql);
-  }
-
-  va_end(ap);
-  *ppStmt = pRet;
-  return rc;
-} 
-
-static int fts5CursorFirstSorted(
-  Fts5FullTable *pTab, 
-  Fts5Cursor *pCsr, 
-  int bDesc
-){
-  Fts5Config *pConfig = pTab->p.pConfig;
-  Fts5Sorter *pSorter;
-  int nPhrase;
-  tdsqlite3_int64 nByte;
-  int rc;
-  const char *zRank = pCsr->zRank;
-  const char *zRankArgs = pCsr->zRankArgs;
-  
-  nPhrase = tdsqlite3Fts5ExprPhraseCount(pCsr->pExpr);
-  nByte = sizeof(Fts5Sorter) + sizeof(int) * (nPhrase-1);
-  pSorter = (Fts5Sorter*)tdsqlite3_malloc64(nByte);
-  if( pSorter==0 ) return SQLITE_NOMEM;
-  memset(pSorter, 0, (size_t)nByte);
-  pSorter->nIdx = nPhrase;
-
-  /* TODO: It would be better to have some system for reusing statement
-  ** handles here, rather than preparing a new one for each query. But that
-  ** is not possible as SQLite reference counts the virtual table objects.
-  ** And since the statement required here reads from this very virtual 
-  ** table, saving it creates a circular reference.
-  **
-  ** If SQLite a built-in statement cache, this wouldn't be a problem. */
-  rc = fts5PrepareStatement(&pSorter->pStmt, pConfig,
-      "SELECT rowid, rank FROM %Q.%Q ORDER BY %s(\"%w\"%s%s) %s",
-      pConfig->zDb, pConfig->zName, zRank, pConfig->zName,
-      (zRankArgs ? ", " : ""),
-      (zRankArgs ? zRankArgs : ""),
-      bDesc ? "DESC" : "ASC"
-  );
-
-  pCsr->pSorter = pSorter;
-  if( rc==SQLITE_OK ){
-    assert( pTab->pSortCsr==0 );
-    pTab->pSortCsr = pCsr;
-    rc = fts5SorterNext(pCsr);
-    pTab->pSortCsr = 0;
-  }
-
-  if( rc!=SQLITE_OK ){
-    tdsqlite3_finalize(pSorter->pStmt);
-    tdsqlite3_free(pSorter);
-    pCsr->pSorter = 0;
-  }
-
-  return rc;
-}
-
-static int fts5CursorFirst(Fts5FullTable *pTab, Fts5Cursor *pCsr, int bDesc){
-  int rc;
-  Fts5Expr *pExpr = pCsr->pExpr;
-  rc = tdsqlite3Fts5ExprFirst(pExpr, pTab->p.pIndex, pCsr->iFirstRowid, bDesc);
-  if( tdsqlite3Fts5ExprEof(pExpr) ){
-    CsrFlagSet(pCsr, FTS5CSR_EOF);
-  }
-  fts5CsrNewrow(pCsr);
-  return rc;
-}
-
-/*
-** Process a "special" query. A special query is identified as one with a
-** MATCH expression that begins with a '*' character. The remainder of
-** the text passed to the MATCH operator are used as  the special query
-** parameters.
-*/
-static int fts5SpecialMatch(
-  Fts5FullTable *pTab, 
-  Fts5Cursor *pCsr, 
-  const char *zQuery
-){
-  int rc = SQLITE_OK;             /* Return code */
-  const char *z = zQuery;         /* Special query text */
-  int n;                          /* Number of bytes in text at z */
-
-  while( z[0]==' ' ) z++;
-  for(n=0; z[n] && z[n]!=' '; n++);
-
-  assert( pTab->p.base.zErrMsg==0 );
-  pCsr->ePlan = FTS5_PLAN_SPECIAL;
-
-  if( n==5 && 0==tdsqlite3_strnicmp("reads", z, n) ){
-    pCsr->iSpecial = tdsqlite3Fts5IndexReads(pTab->p.pIndex);
-  }
-  else if( n==2 && 0==tdsqlite3_strnicmp("id", z, n) ){
-    pCsr->iSpecial = pCsr->iCsrId;
-  }
-  else{
-    /* An unrecognized directive. Return an error message. */
-    pTab->p.base.zErrMsg = tdsqlite3_mprintf("unknown special query: %.*s", n, z);
-    rc = SQLITE_ERROR;
-  }
-
-  return rc;
-}
-
-/*
-** Search for an auxiliary function named zName that can be used with table
-** pTab. If one is found, return a pointer to the corresponding Fts5Auxiliary
-** structure. Otherwise, if no such function exists, return NULL.
-*/
-static Fts5Auxiliary *fts5FindAuxiliary(Fts5FullTable *pTab, const char *zName){
-  Fts5Auxiliary *pAux;
-
-  for(pAux=pTab->pGlobal->pAux; pAux; pAux=pAux->pNext){
-    if( tdsqlite3_stricmp(zName, pAux->zFunc)==0 ) return pAux;
-  }
-
-  /* No function of the specified name was found. Return 0. */
-  return 0;
-}
-
-
-static int fts5FindRankFunction(Fts5Cursor *pCsr){
-  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
-  Fts5Config *pConfig = pTab->p.pConfig;
-  int rc = SQLITE_OK;
-  Fts5Auxiliary *pAux = 0;
-  const char *zRank = pCsr->zRank;
-  const char *zRankArgs = pCsr->zRankArgs;
-
-  if( zRankArgs ){
-    char *zSql = tdsqlite3Fts5Mprintf(&rc, "SELECT %s", zRankArgs);
-    if( zSql ){
-      tdsqlite3_stmt *pStmt = 0;
-      rc = tdsqlite3_prepare_v3(pConfig->db, zSql, -1,
-                              SQLITE_PREPARE_PERSISTENT, &pStmt, 0);
-      tdsqlite3_free(zSql);
-      assert( rc==SQLITE_OK || pCsr->pRankArgStmt==0 );
-      if( rc==SQLITE_OK ){
-        if( SQLITE_ROW==tdsqlite3_step(pStmt) ){
-          tdsqlite3_int64 nByte;
-          pCsr->nRankArg = tdsqlite3_column_count(pStmt);
-          nByte = sizeof(tdsqlite3_value*)*pCsr->nRankArg;
-          pCsr->apRankArg = (tdsqlite3_value**)tdsqlite3Fts5MallocZero(&rc, nByte);
-          if( rc==SQLITE_OK ){
-            int i;
-            for(i=0; i<pCsr->nRankArg; i++){
-              pCsr->apRankArg[i] = tdsqlite3_column_value(pStmt, i);
-            }
-          }
-          pCsr->pRankArgStmt = pStmt;
-        }else{
-          rc = tdsqlite3_finalize(pStmt);
-          assert( rc!=SQLITE_OK );
-        }
-      }
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    pAux = fts5FindAuxiliary(pTab, zRank);
-    if( pAux==0 ){
-      assert( pTab->p.base.zErrMsg==0 );
-      pTab->p.base.zErrMsg = tdsqlite3_mprintf("no such function: %s", zRank);
-      rc = SQLITE_ERROR;
-    }
-  }
-
-  pCsr->pRank = pAux;
-  return rc;
-}
-
-
-static int fts5CursorParseRank(
-  Fts5Config *pConfig,
-  Fts5Cursor *pCsr, 
-  tdsqlite3_value *pRank
-){
-  int rc = SQLITE_OK;
-  if( pRank ){
-    const char *z = (const char*)tdsqlite3_value_text(pRank);
-    char *zRank = 0;
-    char *zRankArgs = 0;
-
-    if( z==0 ){
-      if( tdsqlite3_value_type(pRank)==SQLITE_NULL ) rc = SQLITE_ERROR;
-    }else{
-      rc = tdsqlite3Fts5ConfigParseRank(z, &zRank, &zRankArgs);
-    }
-    if( rc==SQLITE_OK ){
-      pCsr->zRank = zRank;
-      pCsr->zRankArgs = zRankArgs;
-      CsrFlagSet(pCsr, FTS5CSR_FREE_ZRANK);
-    }else if( rc==SQLITE_ERROR ){
-      pCsr->base.pVtab->zErrMsg = tdsqlite3_mprintf(
-          "parse error in rank function: %s", z
-      );
-    }
-  }else{
-    if( pConfig->zRank ){
-      pCsr->zRank = (char*)pConfig->zRank;
-      pCsr->zRankArgs = (char*)pConfig->zRankArgs;
-    }else{
-      pCsr->zRank = (char*)FTS5_DEFAULT_RANK;
-      pCsr->zRankArgs = 0;
-    }
-  }
-  return rc;
-}
-
-static i64 fts5GetRowidLimit(tdsqlite3_value *pVal, i64 iDefault){
-  if( pVal ){
-    int eType = tdsqlite3_value_numeric_type(pVal);
-    if( eType==SQLITE_INTEGER ){
-      return tdsqlite3_value_int64(pVal);
-    }
-  }
-  return iDefault;
-}
-
-/*
-** This is the xFilter interface for the virtual table.  See
-** the virtual table xFilter method documentation for additional
-** information.
-** 
-** There are three possible query strategies:
-**
-**   1. Full-text search using a MATCH operator.
-**   2. A by-rowid lookup.
-**   3. A full-table scan.
-*/
-static int fts5FilterMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
-  int idxNum,                     /* Strategy index */
-  const char *idxStr,             /* Unused */
-  int nVal,                       /* Number of elements in apVal */
-  tdsqlite3_value **apVal           /* Arguments for the indexing scheme */
-){
-  Fts5FullTable *pTab = (Fts5FullTable*)(pCursor->pVtab);
-  Fts5Config *pConfig = pTab->p.pConfig;
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
-  int rc = SQLITE_OK;             /* Error code */
-  int bDesc;                      /* True if ORDER BY [rank|rowid] DESC */
-  int bOrderByRank;               /* True if ORDER BY rank */
-  tdsqlite3_value *pRank = 0;       /* rank MATCH ? expression (or NULL) */
-  tdsqlite3_value *pRowidEq = 0;    /* rowid = ? expression (or NULL) */
-  tdsqlite3_value *pRowidLe = 0;    /* rowid <= ? expression (or NULL) */
-  tdsqlite3_value *pRowidGe = 0;    /* rowid >= ? expression (or NULL) */
-  int iCol;                       /* Column on LHS of MATCH operator */
-  char **pzErrmsg = pConfig->pzErrmsg;
-  int i;
-  int iIdxStr = 0;
-  Fts5Expr *pExpr = 0;
-
-  if( pConfig->bLock ){
-    pTab->p.base.zErrMsg = tdsqlite3_mprintf(
-        "recursively defined fts5 content table"
-    );
-    return SQLITE_ERROR;
-  }
-
-  if( pCsr->ePlan ){
-    fts5FreeCursorComponents(pCsr);
-    memset(&pCsr->ePlan, 0, sizeof(Fts5Cursor) - ((u8*)&pCsr->ePlan-(u8*)pCsr));
-  }
-
-  assert( pCsr->pStmt==0 );
-  assert( pCsr->pExpr==0 );
-  assert( pCsr->csrflags==0 );
-  assert( pCsr->pRank==0 );
-  assert( pCsr->zRank==0 );
-  assert( pCsr->zRankArgs==0 );
-  assert( pTab->pSortCsr==0 || nVal==0 );
-
-  assert( pzErrmsg==0 || pzErrmsg==&pTab->p.base.zErrMsg );
-  pConfig->pzErrmsg = &pTab->p.base.zErrMsg;
-
-  /* Decode the arguments passed through to this function. */
-  for(i=0; i<nVal; i++){
-    switch( idxStr[iIdxStr++] ){
-      case 'r':
-        pRank = apVal[i];
-        break;
-      case 'm': {
-        const char *zText = (const char*)tdsqlite3_value_text(apVal[i]);
-        if( zText==0 ) zText = "";
-
-        if( idxStr[iIdxStr]>='0' && idxStr[iIdxStr]<='9' ){
-          iCol = 0;
-          do{
-            iCol = iCol*10 + (idxStr[iIdxStr]-'0');
-            iIdxStr++;
-          }while( idxStr[iIdxStr]>='0' && idxStr[iIdxStr]<='9' );
-        }else{
-          iCol = pConfig->nCol;
-        }
-
-        if( zText[0]=='*' ){
-          /* The user has issued a query of the form "MATCH '*...'". This
-          ** indicates that the MATCH expression is not a full text query,
-          ** but a request for an internal parameter.  */
-          rc = fts5SpecialMatch(pTab, pCsr, &zText[1]);
-          goto filter_out;
-        }else{
-          char **pzErr = &pTab->p.base.zErrMsg;
-          rc = tdsqlite3Fts5ExprNew(pConfig, iCol, zText, &pExpr, pzErr);
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3Fts5ExprAnd(&pCsr->pExpr, pExpr);
-            pExpr = 0;
-          }
-          if( rc!=SQLITE_OK ) goto filter_out;
-        }
-
-        break;
-      }
-      case '=':
-        pRowidEq = apVal[i];
-        break;
-      case '<':
-        pRowidLe = apVal[i];
-        break;
-      default: assert( idxStr[iIdxStr-1]=='>' );
-        pRowidGe = apVal[i];
-        break;
-    }
-  }
-  bOrderByRank = ((idxNum & FTS5_BI_ORDER_RANK) ? 1 : 0);
-  pCsr->bDesc = bDesc = ((idxNum & FTS5_BI_ORDER_DESC) ? 1 : 0);
-
-  /* Set the cursor upper and lower rowid limits. Only some strategies 
-  ** actually use them. This is ok, as the xBestIndex() method leaves the
-  ** tdsqlite3_index_constraint.omit flag clear for range constraints
-  ** on the rowid field.  */
-  if( pRowidEq ){
-    pRowidLe = pRowidGe = pRowidEq;
-  }
-  if( bDesc ){
-    pCsr->iFirstRowid = fts5GetRowidLimit(pRowidLe, LARGEST_INT64);
-    pCsr->iLastRowid = fts5GetRowidLimit(pRowidGe, SMALLEST_INT64);
-  }else{
-    pCsr->iLastRowid = fts5GetRowidLimit(pRowidLe, LARGEST_INT64);
-    pCsr->iFirstRowid = fts5GetRowidLimit(pRowidGe, SMALLEST_INT64);
-  }
-
-  if( pTab->pSortCsr ){
-    /* If pSortCsr is non-NULL, then this call is being made as part of 
-    ** processing for a "... MATCH <expr> ORDER BY rank" query (ePlan is
-    ** set to FTS5_PLAN_SORTED_MATCH). pSortCsr is the cursor that will
-    ** return results to the user for this query. The current cursor 
-    ** (pCursor) is used to execute the query issued by function 
-    ** fts5CursorFirstSorted() above.  */
-    assert( pRowidEq==0 && pRowidLe==0 && pRowidGe==0 && pRank==0 );
-    assert( nVal==0 && bOrderByRank==0 && bDesc==0 );
-    assert( pCsr->iLastRowid==LARGEST_INT64 );
-    assert( pCsr->iFirstRowid==SMALLEST_INT64 );
-    if( pTab->pSortCsr->bDesc ){
-      pCsr->iLastRowid = pTab->pSortCsr->iFirstRowid;
-      pCsr->iFirstRowid = pTab->pSortCsr->iLastRowid;
-    }else{
-      pCsr->iLastRowid = pTab->pSortCsr->iLastRowid;
-      pCsr->iFirstRowid = pTab->pSortCsr->iFirstRowid;
-    }
-    pCsr->ePlan = FTS5_PLAN_SOURCE;
-    pCsr->pExpr = pTab->pSortCsr->pExpr;
-    rc = fts5CursorFirst(pTab, pCsr, bDesc);
-  }else if( pCsr->pExpr ){
-    rc = fts5CursorParseRank(pConfig, pCsr, pRank);
-    if( rc==SQLITE_OK ){
-      if( bOrderByRank ){
-        pCsr->ePlan = FTS5_PLAN_SORTED_MATCH;
-        rc = fts5CursorFirstSorted(pTab, pCsr, bDesc);
-      }else{
-        pCsr->ePlan = FTS5_PLAN_MATCH;
-        rc = fts5CursorFirst(pTab, pCsr, bDesc);
-      }
-    }
-  }else if( pConfig->zContent==0 ){
-    *pConfig->pzErrmsg = tdsqlite3_mprintf(
-        "%s: table does not support scanning", pConfig->zName
-    );
-    rc = SQLITE_ERROR;
-  }else{
-    /* This is either a full-table scan (ePlan==FTS5_PLAN_SCAN) or a lookup
-    ** by rowid (ePlan==FTS5_PLAN_ROWID).  */
-    pCsr->ePlan = (pRowidEq ? FTS5_PLAN_ROWID : FTS5_PLAN_SCAN);
-    rc = tdsqlite3Fts5StorageStmt(
-        pTab->pStorage, fts5StmtType(pCsr), &pCsr->pStmt, &pTab->p.base.zErrMsg
-    );
-    if( rc==SQLITE_OK ){
-      if( pCsr->ePlan==FTS5_PLAN_ROWID ){
-        tdsqlite3_bind_value(pCsr->pStmt, 1, pRowidEq);
-      }else{
-        tdsqlite3_bind_int64(pCsr->pStmt, 1, pCsr->iFirstRowid);
-        tdsqlite3_bind_int64(pCsr->pStmt, 2, pCsr->iLastRowid);
-      }
-      rc = fts5NextMethod(pCursor);
-    }
-  }
-
- filter_out:
-  tdsqlite3Fts5ExprFree(pExpr);
-  pConfig->pzErrmsg = pzErrmsg;
-  return rc;
-}
-
-/* 
-** This is the xEof method of the virtual table. SQLite calls this 
-** routine to find out if it has reached the end of a result set.
-*/
-static int fts5EofMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
-  return (CsrFlagTest(pCsr, FTS5CSR_EOF) ? 1 : 0);
-}
-
-/*
-** Return the rowid that the cursor currently points to.
-*/
-static i64 fts5CursorRowid(Fts5Cursor *pCsr){
-  assert( pCsr->ePlan==FTS5_PLAN_MATCH 
-       || pCsr->ePlan==FTS5_PLAN_SORTED_MATCH 
-       || pCsr->ePlan==FTS5_PLAN_SOURCE 
-  );
-  if( pCsr->pSorter ){
-    return pCsr->pSorter->iRowid;
-  }else{
-    return tdsqlite3Fts5ExprRowid(pCsr->pExpr);
-  }
-}
-
-/* 
-** This is the xRowid method. The SQLite core calls this routine to
-** retrieve the rowid for the current row of the result set. fts5
-** exposes %_content.rowid as the rowid for the virtual table. The
-** rowid should be written to *pRowid.
-*/
-static int fts5RowidMethod(tdsqlite3_vtab_cursor *pCursor, sqlite_int64 *pRowid){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
-  int ePlan = pCsr->ePlan;
-  
-  assert( CsrFlagTest(pCsr, FTS5CSR_EOF)==0 );
-  switch( ePlan ){
-    case FTS5_PLAN_SPECIAL:
-      *pRowid = 0;
-      break;
-
-    case FTS5_PLAN_SOURCE:
-    case FTS5_PLAN_MATCH:
-    case FTS5_PLAN_SORTED_MATCH:
-      *pRowid = fts5CursorRowid(pCsr);
-      break;
-
-    default:
-      *pRowid = tdsqlite3_column_int64(pCsr->pStmt, 0);
-      break;
-  }
-
-  return SQLITE_OK;
-}
-
-/*
-** If the cursor requires seeking (bSeekRequired flag is set), seek it.
-** Return SQLITE_OK if no error occurs, or an SQLite error code otherwise.
-**
-** If argument bErrormsg is true and an error occurs, an error message may
-** be left in tdsqlite3_vtab.zErrMsg.
-*/
-static int fts5SeekCursor(Fts5Cursor *pCsr, int bErrormsg){
-  int rc = SQLITE_OK;
-
-  /* If the cursor does not yet have a statement handle, obtain one now. */ 
-  if( pCsr->pStmt==0 ){
-    Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
-    int eStmt = fts5StmtType(pCsr);
-    rc = tdsqlite3Fts5StorageStmt(
-        pTab->pStorage, eStmt, &pCsr->pStmt, (bErrormsg?&pTab->p.base.zErrMsg:0)
-    );
-    assert( rc!=SQLITE_OK || pTab->p.base.zErrMsg==0 );
-    assert( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_CONTENT) );
-  }
-
-  if( rc==SQLITE_OK && CsrFlagTest(pCsr, FTS5CSR_REQUIRE_CONTENT) ){
-    Fts5Table *pTab = (Fts5Table*)(pCsr->base.pVtab);
-    assert( pCsr->pExpr );
-    tdsqlite3_reset(pCsr->pStmt);
-    tdsqlite3_bind_int64(pCsr->pStmt, 1, fts5CursorRowid(pCsr));
-    pTab->pConfig->bLock++;
-    rc = tdsqlite3_step(pCsr->pStmt);
-    pTab->pConfig->bLock--;
-    if( rc==SQLITE_ROW ){
-      rc = SQLITE_OK;
-      CsrFlagClear(pCsr, FTS5CSR_REQUIRE_CONTENT);
-    }else{
-      rc = tdsqlite3_reset(pCsr->pStmt);
-      if( rc==SQLITE_OK ){
-        rc = FTS5_CORRUPT;
-      }else if( pTab->pConfig->pzErrmsg ){
-        *pTab->pConfig->pzErrmsg = tdsqlite3_mprintf(
-            "%s", tdsqlite3_errmsg(pTab->pConfig->db)
-        );
-      }
-    }
-  }
-  return rc;
-}
-
-static void fts5SetVtabError(Fts5FullTable *p, const char *zFormat, ...){
-  va_list ap;                     /* ... printf arguments */
-  va_start(ap, zFormat);
-  assert( p->p.base.zErrMsg==0 );
-  p->p.base.zErrMsg = tdsqlite3_vmprintf(zFormat, ap);
-  va_end(ap);
-}
-
-/*
-** This function is called to handle an FTS INSERT command. In other words,
-** an INSERT statement of the form:
-**
-**     INSERT INTO fts(fts) VALUES($pCmd)
-**     INSERT INTO fts(fts, rank) VALUES($pCmd, $pVal)
-**
-** Argument pVal is the value assigned to column "fts" by the INSERT 
-** statement. This function returns SQLITE_OK if successful, or an SQLite
-** error code if an error occurs.
-**
-** The commands implemented by this function are documented in the "Special
-** INSERT Directives" section of the documentation. It should be updated if
-** more commands are added to this function.
-*/
-static int fts5SpecialInsert(
-  Fts5FullTable *pTab,            /* Fts5 table object */
-  const char *zCmd,               /* Text inserted into table-name column */
-  tdsqlite3_value *pVal             /* Value inserted into rank column */
-){
-  Fts5Config *pConfig = pTab->p.pConfig;
-  int rc = SQLITE_OK;
-  int bError = 0;
-
-  if( 0==tdsqlite3_stricmp("delete-all", zCmd) ){
-    if( pConfig->eContent==FTS5_CONTENT_NORMAL ){
-      fts5SetVtabError(pTab, 
-          "'delete-all' may only be used with a "
-          "contentless or external content fts5 table"
-      );
-      rc = SQLITE_ERROR;
-    }else{
-      rc = tdsqlite3Fts5StorageDeleteAll(pTab->pStorage);
-    }
-  }else if( 0==tdsqlite3_stricmp("rebuild", zCmd) ){
-    if( pConfig->eContent==FTS5_CONTENT_NONE ){
-      fts5SetVtabError(pTab, 
-          "'rebuild' may not be used with a contentless fts5 table"
-      );
-      rc = SQLITE_ERROR;
-    }else{
-      rc = tdsqlite3Fts5StorageRebuild(pTab->pStorage);
-    }
-  }else if( 0==tdsqlite3_stricmp("optimize", zCmd) ){
-    rc = tdsqlite3Fts5StorageOptimize(pTab->pStorage);
-  }else if( 0==tdsqlite3_stricmp("merge", zCmd) ){
-    int nMerge = tdsqlite3_value_int(pVal);
-    rc = tdsqlite3Fts5StorageMerge(pTab->pStorage, nMerge);
-  }else if( 0==tdsqlite3_stricmp("integrity-check", zCmd) ){
-    rc = tdsqlite3Fts5StorageIntegrity(pTab->pStorage);
-#ifdef SQLITE_DEBUG
-  }else if( 0==tdsqlite3_stricmp("prefix-index", zCmd) ){
-    pConfig->bPrefixIndex = tdsqlite3_value_int(pVal);
-#endif
-  }else{
-    rc = tdsqlite3Fts5IndexLoadConfig(pTab->p.pIndex);
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3Fts5ConfigSetValue(pTab->p.pConfig, zCmd, pVal, &bError);
-    }
-    if( rc==SQLITE_OK ){
-      if( bError ){
-        rc = SQLITE_ERROR;
-      }else{
-        rc = tdsqlite3Fts5StorageConfigValue(pTab->pStorage, zCmd, pVal, 0);
-      }
-    }
-  }
-  return rc;
-}
-
-static int fts5SpecialDelete(
-  Fts5FullTable *pTab, 
-  tdsqlite3_value **apVal
-){
-  int rc = SQLITE_OK;
-  int eType1 = tdsqlite3_value_type(apVal[1]);
-  if( eType1==SQLITE_INTEGER ){
-    tdsqlite3_int64 iDel = tdsqlite3_value_int64(apVal[1]);
-    rc = tdsqlite3Fts5StorageDelete(pTab->pStorage, iDel, &apVal[2]);
-  }
-  return rc;
-}
-
-static void fts5StorageInsert(
-  int *pRc, 
-  Fts5FullTable *pTab, 
-  tdsqlite3_value **apVal, 
-  i64 *piRowid
-){
-  int rc = *pRc;
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5StorageContentInsert(pTab->pStorage, apVal, piRowid);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5StorageIndexInsert(pTab->pStorage, apVal, *piRowid);
-  }
-  *pRc = rc;
-}
-
-/* 
-** This function is the implementation of the xUpdate callback used by 
-** FTS3 virtual tables. It is invoked by SQLite each time a row is to be
-** inserted, updated or deleted.
-**
-** A delete specifies a single argument - the rowid of the row to remove.
-** 
-** Update and insert operations pass:
-**
-**   1. The "old" rowid, or NULL.
-**   2. The "new" rowid.
-**   3. Values for each of the nCol matchable columns.
-**   4. Values for the two hidden columns (<tablename> and "rank").
-*/
-static int fts5UpdateMethod(
-  tdsqlite3_vtab *pVtab,            /* Virtual table handle */
-  int nArg,                       /* Size of argument array */
-  tdsqlite3_value **apVal,          /* Array of arguments */
-  sqlite_int64 *pRowid            /* OUT: The affected (or effected) rowid */
-){
-  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
-  Fts5Config *pConfig = pTab->p.pConfig;
-  int eType0;                     /* value_type() of apVal[0] */
-  int rc = SQLITE_OK;             /* Return code */
-
-  /* A transaction must be open when this is called. */
-  assert( pTab->ts.eState==1 );
-
-  assert( pVtab->zErrMsg==0 );
-  assert( nArg==1 || nArg==(2+pConfig->nCol+2) );
-  assert( tdsqlite3_value_type(apVal[0])==SQLITE_INTEGER 
-       || tdsqlite3_value_type(apVal[0])==SQLITE_NULL 
-  );
-  assert( pTab->p.pConfig->pzErrmsg==0 );
-  pTab->p.pConfig->pzErrmsg = &pTab->p.base.zErrMsg;
-
-  /* Put any active cursors into REQUIRE_SEEK state. */
-  fts5TripCursors(pTab);
-
-  eType0 = tdsqlite3_value_type(apVal[0]);
-  if( eType0==SQLITE_NULL 
-   && tdsqlite3_value_type(apVal[2+pConfig->nCol])!=SQLITE_NULL 
-  ){
-    /* A "special" INSERT op. These are handled separately. */
-    const char *z = (const char*)tdsqlite3_value_text(apVal[2+pConfig->nCol]);
-    if( pConfig->eContent!=FTS5_CONTENT_NORMAL 
-      && 0==tdsqlite3_stricmp("delete", z) 
-    ){
-      rc = fts5SpecialDelete(pTab, apVal);
-    }else{
-      rc = fts5SpecialInsert(pTab, z, apVal[2 + pConfig->nCol + 1]);
-    }
-  }else{
-    /* A regular INSERT, UPDATE or DELETE statement. The trick here is that
-    ** any conflict on the rowid value must be detected before any 
-    ** modifications are made to the database file. There are 4 cases:
-    **
-    **   1) DELETE
-    **   2) UPDATE (rowid not modified)
-    **   3) UPDATE (rowid modified)
-    **   4) INSERT
-    **
-    ** Cases 3 and 4 may violate the rowid constraint.
-    */
-    int eConflict = SQLITE_ABORT;
-    if( pConfig->eContent==FTS5_CONTENT_NORMAL ){
-      eConflict = tdsqlite3_vtab_on_conflict(pConfig->db);
-    }
-
-    assert( eType0==SQLITE_INTEGER || eType0==SQLITE_NULL );
-    assert( nArg!=1 || eType0==SQLITE_INTEGER );
-
-    /* Filter out attempts to run UPDATE or DELETE on contentless tables.
-    ** This is not suported.  */
-    if( eType0==SQLITE_INTEGER && fts5IsContentless(pTab) ){
-      pTab->p.base.zErrMsg = tdsqlite3_mprintf(
-          "cannot %s contentless fts5 table: %s", 
-          (nArg>1 ? "UPDATE" : "DELETE from"), pConfig->zName
-      );
-      rc = SQLITE_ERROR;
-    }
-
-    /* DELETE */
-    else if( nArg==1 ){
-      i64 iDel = tdsqlite3_value_int64(apVal[0]);  /* Rowid to delete */
-      rc = tdsqlite3Fts5StorageDelete(pTab->pStorage, iDel, 0);
-    }
-
-    /* INSERT or UPDATE */
-    else{
-      int eType1 = tdsqlite3_value_numeric_type(apVal[1]);
-
-      if( eType1!=SQLITE_INTEGER && eType1!=SQLITE_NULL ){
-        rc = SQLITE_MISMATCH;
-      }
-
-      else if( eType0!=SQLITE_INTEGER ){     
-        /* If this is a REPLACE, first remove the current entry (if any) */
-        if( eConflict==SQLITE_REPLACE && eType1==SQLITE_INTEGER ){
-          i64 iNew = tdsqlite3_value_int64(apVal[1]);  /* Rowid to delete */
-          rc = tdsqlite3Fts5StorageDelete(pTab->pStorage, iNew, 0);
-        }
-        fts5StorageInsert(&rc, pTab, apVal, pRowid);
-      }
-
-      /* UPDATE */
-      else{
-        i64 iOld = tdsqlite3_value_int64(apVal[0]);  /* Old rowid */
-        i64 iNew = tdsqlite3_value_int64(apVal[1]);  /* New rowid */
-        if( eType1==SQLITE_INTEGER && iOld!=iNew ){
-          if( eConflict==SQLITE_REPLACE ){
-            rc = tdsqlite3Fts5StorageDelete(pTab->pStorage, iOld, 0);
-            if( rc==SQLITE_OK ){
-              rc = tdsqlite3Fts5StorageDelete(pTab->pStorage, iNew, 0);
-            }
-            fts5StorageInsert(&rc, pTab, apVal, pRowid);
-          }else{
-            rc = tdsqlite3Fts5StorageContentInsert(pTab->pStorage, apVal, pRowid);
-            if( rc==SQLITE_OK ){
-              rc = tdsqlite3Fts5StorageDelete(pTab->pStorage, iOld, 0);
-            }
-            if( rc==SQLITE_OK ){
-              rc = tdsqlite3Fts5StorageIndexInsert(pTab->pStorage, apVal,*pRowid);
-            }
-          }
-        }else{
-          rc = tdsqlite3Fts5StorageDelete(pTab->pStorage, iOld, 0);
-          fts5StorageInsert(&rc, pTab, apVal, pRowid);
-        }
-      }
-    }
-  }
-
-  pTab->p.pConfig->pzErrmsg = 0;
-  return rc;
-}
-
-/*
-** Implementation of xSync() method. 
-*/
-static int fts5SyncMethod(tdsqlite3_vtab *pVtab){
-  int rc;
-  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
-  fts5CheckTransactionState(pTab, FTS5_SYNC, 0);
-  pTab->p.pConfig->pzErrmsg = &pTab->p.base.zErrMsg;
-  fts5TripCursors(pTab);
-  rc = tdsqlite3Fts5StorageSync(pTab->pStorage);
-  pTab->p.pConfig->pzErrmsg = 0;
-  return rc;
-}
-
-/*
-** Implementation of xBegin() method. 
-*/
-static int fts5BeginMethod(tdsqlite3_vtab *pVtab){
-  fts5CheckTransactionState((Fts5FullTable*)pVtab, FTS5_BEGIN, 0);
-  fts5NewTransaction((Fts5FullTable*)pVtab);
-  return SQLITE_OK;
-}
-
-/*
-** Implementation of xCommit() method. This is a no-op. The contents of
-** the pending-terms hash-table have already been flushed into the database
-** by fts5SyncMethod().
-*/
-static int fts5CommitMethod(tdsqlite3_vtab *pVtab){
-  UNUSED_PARAM(pVtab);  /* Call below is a no-op for NDEBUG builds */
-  fts5CheckTransactionState((Fts5FullTable*)pVtab, FTS5_COMMIT, 0);
-  return SQLITE_OK;
-}
-
-/*
-** Implementation of xRollback(). Discard the contents of the pending-terms
-** hash-table. Any changes made to the database are reverted by SQLite.
-*/
-static int fts5RollbackMethod(tdsqlite3_vtab *pVtab){
-  int rc;
-  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
-  fts5CheckTransactionState(pTab, FTS5_ROLLBACK, 0);
-  rc = tdsqlite3Fts5StorageRollback(pTab->pStorage);
-  return rc;
-}
-
-static int fts5CsrPoslist(Fts5Cursor*, int, const u8**, int*);
-
-static void *fts5ApiUserData(Fts5Context *pCtx){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  return pCsr->pAux->pUserData;
-}
-
-static int fts5ApiColumnCount(Fts5Context *pCtx){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  return ((Fts5Table*)(pCsr->base.pVtab))->pConfig->nCol;
-}
-
-static int fts5ApiColumnTotalSize(
-  Fts5Context *pCtx, 
-  int iCol, 
-  tdsqlite3_int64 *pnToken
-){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
-  return tdsqlite3Fts5StorageSize(pTab->pStorage, iCol, pnToken);
-}
-
-static int fts5ApiRowCount(Fts5Context *pCtx, i64 *pnRow){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
-  return tdsqlite3Fts5StorageRowCount(pTab->pStorage, pnRow);
-}
-
-static int fts5ApiTokenize(
-  Fts5Context *pCtx, 
-  const char *pText, int nText, 
-  void *pUserData,
-  int (*xToken)(void*, int, const char*, int, int, int)
-){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5Table *pTab = (Fts5Table*)(pCsr->base.pVtab);
-  return tdsqlite3Fts5Tokenize(
-      pTab->pConfig, FTS5_TOKENIZE_AUX, pText, nText, pUserData, xToken
-  );
-}
-
-static int fts5ApiPhraseCount(Fts5Context *pCtx){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  return tdsqlite3Fts5ExprPhraseCount(pCsr->pExpr);
-}
-
-static int fts5ApiPhraseSize(Fts5Context *pCtx, int iPhrase){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  return tdsqlite3Fts5ExprPhraseSize(pCsr->pExpr, iPhrase);
-}
-
-static int fts5ApiColumnText(
-  Fts5Context *pCtx, 
-  int iCol, 
-  const char **pz, 
-  int *pn
-){
-  int rc = SQLITE_OK;
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  if( fts5IsContentless((Fts5FullTable*)(pCsr->base.pVtab)) 
-   || pCsr->ePlan==FTS5_PLAN_SPECIAL 
-  ){
-    *pz = 0;
-    *pn = 0;
-  }else{
-    rc = fts5SeekCursor(pCsr, 0);
-    if( rc==SQLITE_OK ){
-      *pz = (const char*)tdsqlite3_column_text(pCsr->pStmt, iCol+1);
-      *pn = tdsqlite3_column_bytes(pCsr->pStmt, iCol+1);
-    }
-  }
-  return rc;
-}
-
-static int fts5CsrPoslist(
-  Fts5Cursor *pCsr, 
-  int iPhrase, 
-  const u8 **pa,
-  int *pn
-){
-  Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
-  int rc = SQLITE_OK;
-  int bLive = (pCsr->pSorter==0);
-
-  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_POSLIST) ){
-
-    if( pConfig->eDetail!=FTS5_DETAIL_FULL ){
-      Fts5PoslistPopulator *aPopulator;
-      int i;
-      aPopulator = tdsqlite3Fts5ExprClearPoslists(pCsr->pExpr, bLive);
-      if( aPopulator==0 ) rc = SQLITE_NOMEM;
-      for(i=0; i<pConfig->nCol && rc==SQLITE_OK; i++){
-        int n; const char *z;
-        rc = fts5ApiColumnText((Fts5Context*)pCsr, i, &z, &n);
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3Fts5ExprPopulatePoslists(
-              pConfig, pCsr->pExpr, aPopulator, i, z, n
-          );
-        }
-      }
-      tdsqlite3_free(aPopulator);
-
-      if( pCsr->pSorter ){
-        tdsqlite3Fts5ExprCheckPoslists(pCsr->pExpr, pCsr->pSorter->iRowid);
-      }
-    }
-    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_POSLIST);
-  }
-
-  if( pCsr->pSorter && pConfig->eDetail==FTS5_DETAIL_FULL ){
-    Fts5Sorter *pSorter = pCsr->pSorter;
-    int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]);
-    *pn = pSorter->aIdx[iPhrase] - i1;
-    *pa = &pSorter->aPoslist[i1];
-  }else{
-    *pn = tdsqlite3Fts5ExprPoslist(pCsr->pExpr, iPhrase, pa);
-  }
-
-  return rc;
-}
-
-/*
-** Ensure that the Fts5Cursor.nInstCount and aInst[] variables are populated
-** correctly for the current view. Return SQLITE_OK if successful, or an
-** SQLite error code otherwise.
-*/
-static int fts5CacheInstArray(Fts5Cursor *pCsr){
-  int rc = SQLITE_OK;
-  Fts5PoslistReader *aIter;       /* One iterator for each phrase */
-  int nIter;                      /* Number of iterators/phrases */
-  int nCol = ((Fts5Table*)pCsr->base.pVtab)->pConfig->nCol;
-  
-  nIter = tdsqlite3Fts5ExprPhraseCount(pCsr->pExpr);
-  if( pCsr->aInstIter==0 ){
-    tdsqlite3_int64 nByte = sizeof(Fts5PoslistReader) * nIter;
-    pCsr->aInstIter = (Fts5PoslistReader*)tdsqlite3Fts5MallocZero(&rc, nByte);
-  }
-  aIter = pCsr->aInstIter;
-
-  if( aIter ){
-    int nInst = 0;                /* Number instances seen so far */
-    int i;
-
-    /* Initialize all iterators */
-    for(i=0; i<nIter && rc==SQLITE_OK; i++){
-      const u8 *a;
-      int n; 
-      rc = fts5CsrPoslist(pCsr, i, &a, &n);
-      if( rc==SQLITE_OK ){
-        tdsqlite3Fts5PoslistReaderInit(a, n, &aIter[i]);
-      }
-    }
-
-    if( rc==SQLITE_OK ){
-      while( 1 ){
-        int *aInst;
-        int iBest = -1;
-        for(i=0; i<nIter; i++){
-          if( (aIter[i].bEof==0) 
-              && (iBest<0 || aIter[i].iPos<aIter[iBest].iPos) 
-            ){
-            iBest = i;
-          }
-        }
-        if( iBest<0 ) break;
-
-        nInst++;
-        if( nInst>=pCsr->nInstAlloc ){
-          pCsr->nInstAlloc = pCsr->nInstAlloc ? pCsr->nInstAlloc*2 : 32;
-          aInst = (int*)tdsqlite3_realloc64(
-              pCsr->aInst, pCsr->nInstAlloc*sizeof(int)*3
-              );
-          if( aInst ){
-            pCsr->aInst = aInst;
-          }else{
-            rc = SQLITE_NOMEM;
-            break;
-          }
-        }
-
-        aInst = &pCsr->aInst[3 * (nInst-1)];
-        aInst[0] = iBest;
-        aInst[1] = FTS5_POS2COLUMN(aIter[iBest].iPos);
-        aInst[2] = FTS5_POS2OFFSET(aIter[iBest].iPos);
-        if( aInst[1]<0 || aInst[1]>=nCol ){
-          rc = FTS5_CORRUPT;
-          break;
-        }
-        tdsqlite3Fts5PoslistReaderNext(&aIter[iBest]);
-      }
-    }
-
-    pCsr->nInstCount = nInst;
-    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_INST);
-  }
-  return rc;
-}
-
-static int fts5ApiInstCount(Fts5Context *pCtx, int *pnInst){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  int rc = SQLITE_OK;
-  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_INST)==0 
-   || SQLITE_OK==(rc = fts5CacheInstArray(pCsr)) ){
-    *pnInst = pCsr->nInstCount;
-  }
-  return rc;
-}
-
-static int fts5ApiInst(
-  Fts5Context *pCtx, 
-  int iIdx, 
-  int *piPhrase, 
-  int *piCol, 
-  int *piOff
-){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  int rc = SQLITE_OK;
-  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_INST)==0 
-   || SQLITE_OK==(rc = fts5CacheInstArray(pCsr)) 
-  ){
-    if( iIdx<0 || iIdx>=pCsr->nInstCount ){
-      rc = SQLITE_RANGE;
-#if 0
-    }else if( fts5IsOffsetless((Fts5Table*)pCsr->base.pVtab) ){
-      *piPhrase = pCsr->aInst[iIdx*3];
-      *piCol = pCsr->aInst[iIdx*3 + 2];
-      *piOff = -1;
-#endif
-    }else{
-      *piPhrase = pCsr->aInst[iIdx*3];
-      *piCol = pCsr->aInst[iIdx*3 + 1];
-      *piOff = pCsr->aInst[iIdx*3 + 2];
-    }
-  }
-  return rc;
-}
-
-static tdsqlite3_int64 fts5ApiRowid(Fts5Context *pCtx){
-  return fts5CursorRowid((Fts5Cursor*)pCtx);
-}
-
-static int fts5ColumnSizeCb(
-  void *pContext,                 /* Pointer to int */
-  int tflags,
-  const char *pUnused,            /* Buffer containing token */
-  int nUnused,                    /* Size of token in bytes */
-  int iUnused1,                   /* Start offset of token */
-  int iUnused2                    /* End offset of token */
-){
-  int *pCnt = (int*)pContext;
-  UNUSED_PARAM2(pUnused, nUnused);
-  UNUSED_PARAM2(iUnused1, iUnused2);
-  if( (tflags & FTS5_TOKEN_COLOCATED)==0 ){
-    (*pCnt)++;
-  }
-  return SQLITE_OK;
-}
-
-static int fts5ApiColumnSize(Fts5Context *pCtx, int iCol, int *pnToken){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
-  Fts5Config *pConfig = pTab->p.pConfig;
-  int rc = SQLITE_OK;
-
-  if( CsrFlagTest(pCsr, FTS5CSR_REQUIRE_DOCSIZE) ){
-    if( pConfig->bColumnsize ){
-      i64 iRowid = fts5CursorRowid(pCsr);
-      rc = tdsqlite3Fts5StorageDocsize(pTab->pStorage, iRowid, pCsr->aColumnSize);
-    }else if( pConfig->zContent==0 ){
-      int i;
-      for(i=0; i<pConfig->nCol; i++){
-        if( pConfig->abUnindexed[i]==0 ){
-          pCsr->aColumnSize[i] = -1;
-        }
-      }
-    }else{
-      int i;
-      for(i=0; rc==SQLITE_OK && i<pConfig->nCol; i++){
-        if( pConfig->abUnindexed[i]==0 ){
-          const char *z; int n;
-          void *p = (void*)(&pCsr->aColumnSize[i]);
-          pCsr->aColumnSize[i] = 0;
-          rc = fts5ApiColumnText(pCtx, i, &z, &n);
-          if( rc==SQLITE_OK ){
-            rc = tdsqlite3Fts5Tokenize(
-                pConfig, FTS5_TOKENIZE_AUX, z, n, p, fts5ColumnSizeCb
-            );
-          }
-        }
-      }
-    }
-    CsrFlagClear(pCsr, FTS5CSR_REQUIRE_DOCSIZE);
-  }
-  if( iCol<0 ){
-    int i;
-    *pnToken = 0;
-    for(i=0; i<pConfig->nCol; i++){
-      *pnToken += pCsr->aColumnSize[i];
-    }
-  }else if( iCol<pConfig->nCol ){
-    *pnToken = pCsr->aColumnSize[iCol];
-  }else{
-    *pnToken = 0;
-    rc = SQLITE_RANGE;
-  }
-  return rc;
-}
-
-/*
-** Implementation of the xSetAuxdata() method.
-*/
-static int fts5ApiSetAuxdata(
-  Fts5Context *pCtx,              /* Fts5 context */
-  void *pPtr,                     /* Pointer to save as auxdata */
-  void(*xDelete)(void*)           /* Destructor for pPtr (or NULL) */
-){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5Auxdata *pData;
-
-  /* Search through the cursors list of Fts5Auxdata objects for one that
-  ** corresponds to the currently executing auxiliary function.  */
-  for(pData=pCsr->pAuxdata; pData; pData=pData->pNext){
-    if( pData->pAux==pCsr->pAux ) break;
-  }
-
-  if( pData ){
-    if( pData->xDelete ){
-      pData->xDelete(pData->pPtr);
-    }
-  }else{
-    int rc = SQLITE_OK;
-    pData = (Fts5Auxdata*)tdsqlite3Fts5MallocZero(&rc, sizeof(Fts5Auxdata));
-    if( pData==0 ){
-      if( xDelete ) xDelete(pPtr);
-      return rc;
-    }
-    pData->pAux = pCsr->pAux;
-    pData->pNext = pCsr->pAuxdata;
-    pCsr->pAuxdata = pData;
-  }
-
-  pData->xDelete = xDelete;
-  pData->pPtr = pPtr;
-  return SQLITE_OK;
-}
-
-static void *fts5ApiGetAuxdata(Fts5Context *pCtx, int bClear){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5Auxdata *pData;
-  void *pRet = 0;
-
-  for(pData=pCsr->pAuxdata; pData; pData=pData->pNext){
-    if( pData->pAux==pCsr->pAux ) break;
-  }
-
-  if( pData ){
-    pRet = pData->pPtr;
-    if( bClear ){
-      pData->pPtr = 0;
-      pData->xDelete = 0;
-    }
-  }
-
-  return pRet;
-}
-
-static void fts5ApiPhraseNext(
-  Fts5Context *pUnused, 
-  Fts5PhraseIter *pIter, 
-  int *piCol, int *piOff
-){
-  UNUSED_PARAM(pUnused);
-  if( pIter->a>=pIter->b ){
-    *piCol = -1;
-    *piOff = -1;
-  }else{
-    int iVal;
-    pIter->a += fts5GetVarint32(pIter->a, iVal);
-    if( iVal==1 ){
-      pIter->a += fts5GetVarint32(pIter->a, iVal);
-      *piCol = iVal;
-      *piOff = 0;
-      pIter->a += fts5GetVarint32(pIter->a, iVal);
-    }
-    *piOff += (iVal-2);
-  }
-}
-
-static int fts5ApiPhraseFirst(
-  Fts5Context *pCtx, 
-  int iPhrase, 
-  Fts5PhraseIter *pIter, 
-  int *piCol, int *piOff
-){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  int n;
-  int rc = fts5CsrPoslist(pCsr, iPhrase, &pIter->a, &n);
-  if( rc==SQLITE_OK ){
-    pIter->b = &pIter->a[n];
-    *piCol = 0;
-    *piOff = 0;
-    fts5ApiPhraseNext(pCtx, pIter, piCol, piOff);
-  }
-  return rc;
-}
-
-static void fts5ApiPhraseNextColumn(
-  Fts5Context *pCtx, 
-  Fts5PhraseIter *pIter, 
-  int *piCol
-){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
-
-  if( pConfig->eDetail==FTS5_DETAIL_COLUMNS ){
-    if( pIter->a>=pIter->b ){
-      *piCol = -1;
-    }else{
-      int iIncr;
-      pIter->a += fts5GetVarint32(&pIter->a[0], iIncr);
-      *piCol += (iIncr-2);
-    }
-  }else{
-    while( 1 ){
-      int dummy;
-      if( pIter->a>=pIter->b ){
-        *piCol = -1;
-        return;
-      }
-      if( pIter->a[0]==0x01 ) break;
-      pIter->a += fts5GetVarint32(pIter->a, dummy);
-    }
-    pIter->a += 1 + fts5GetVarint32(&pIter->a[1], *piCol);
-  }
-}
-
-static int fts5ApiPhraseFirstColumn(
-  Fts5Context *pCtx, 
-  int iPhrase, 
-  Fts5PhraseIter *pIter, 
-  int *piCol
-){
-  int rc = SQLITE_OK;
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5Config *pConfig = ((Fts5Table*)(pCsr->base.pVtab))->pConfig;
-
-  if( pConfig->eDetail==FTS5_DETAIL_COLUMNS ){
-    Fts5Sorter *pSorter = pCsr->pSorter;
-    int n;
-    if( pSorter ){
-      int i1 = (iPhrase==0 ? 0 : pSorter->aIdx[iPhrase-1]);
-      n = pSorter->aIdx[iPhrase] - i1;
-      pIter->a = &pSorter->aPoslist[i1];
-    }else{
-      rc = tdsqlite3Fts5ExprPhraseCollist(pCsr->pExpr, iPhrase, &pIter->a, &n);
-    }
-    if( rc==SQLITE_OK ){
-      pIter->b = &pIter->a[n];
-      *piCol = 0;
-      fts5ApiPhraseNextColumn(pCtx, pIter, piCol);
-    }
-  }else{
-    int n;
-    rc = fts5CsrPoslist(pCsr, iPhrase, &pIter->a, &n);
-    if( rc==SQLITE_OK ){
-      pIter->b = &pIter->a[n];
-      if( n<=0 ){
-        *piCol = -1;
-      }else if( pIter->a[0]==0x01 ){
-        pIter->a += 1 + fts5GetVarint32(&pIter->a[1], *piCol);
-      }else{
-        *piCol = 0;
-      }
-    }
-  }
-
-  return rc;
-}
-
-
-static int fts5ApiQueryPhrase(Fts5Context*, int, void*, 
-    int(*)(const Fts5ExtensionApi*, Fts5Context*, void*)
-);
-
-static const Fts5ExtensionApi sFts5Api = {
-  2,                            /* iVersion */
-  fts5ApiUserData,
-  fts5ApiColumnCount,
-  fts5ApiRowCount,
-  fts5ApiColumnTotalSize,
-  fts5ApiTokenize,
-  fts5ApiPhraseCount,
-  fts5ApiPhraseSize,
-  fts5ApiInstCount,
-  fts5ApiInst,
-  fts5ApiRowid,
-  fts5ApiColumnText,
-  fts5ApiColumnSize,
-  fts5ApiQueryPhrase,
-  fts5ApiSetAuxdata,
-  fts5ApiGetAuxdata,
-  fts5ApiPhraseFirst,
-  fts5ApiPhraseNext,
-  fts5ApiPhraseFirstColumn,
-  fts5ApiPhraseNextColumn,
-};
-
-/*
-** Implementation of API function xQueryPhrase().
-*/
-static int fts5ApiQueryPhrase(
-  Fts5Context *pCtx, 
-  int iPhrase, 
-  void *pUserData,
-  int(*xCallback)(const Fts5ExtensionApi*, Fts5Context*, void*)
-){
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCtx;
-  Fts5FullTable *pTab = (Fts5FullTable*)(pCsr->base.pVtab);
-  int rc;
-  Fts5Cursor *pNew = 0;
-
-  rc = fts5OpenMethod(pCsr->base.pVtab, (tdsqlite3_vtab_cursor**)&pNew);
-  if( rc==SQLITE_OK ){
-    pNew->ePlan = FTS5_PLAN_MATCH;
-    pNew->iFirstRowid = SMALLEST_INT64;
-    pNew->iLastRowid = LARGEST_INT64;
-    pNew->base.pVtab = (tdsqlite3_vtab*)pTab;
-    rc = tdsqlite3Fts5ExprClonePhrase(pCsr->pExpr, iPhrase, &pNew->pExpr);
-  }
-
-  if( rc==SQLITE_OK ){
-    for(rc = fts5CursorFirst(pTab, pNew, 0);
-        rc==SQLITE_OK && CsrFlagTest(pNew, FTS5CSR_EOF)==0;
-        rc = fts5NextMethod((tdsqlite3_vtab_cursor*)pNew)
-    ){
-      rc = xCallback(&sFts5Api, (Fts5Context*)pNew, pUserData);
-      if( rc!=SQLITE_OK ){
-        if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-        break;
-      }
-    }
-  }
-
-  fts5CloseMethod((tdsqlite3_vtab_cursor*)pNew);
-  return rc;
-}
-
-static void fts5ApiInvoke(
-  Fts5Auxiliary *pAux,
-  Fts5Cursor *pCsr,
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-  assert( pCsr->pAux==0 );
-  pCsr->pAux = pAux;
-  pAux->xFunc(&sFts5Api, (Fts5Context*)pCsr, context, argc, argv);
-  pCsr->pAux = 0;
-}
-
-static Fts5Cursor *fts5CursorFromCsrid(Fts5Global *pGlobal, i64 iCsrId){
-  Fts5Cursor *pCsr;
-  for(pCsr=pGlobal->pCsr; pCsr; pCsr=pCsr->pNext){
-    if( pCsr->iCsrId==iCsrId ) break;
-  }
-  return pCsr;
-}
-
-static void fts5ApiCallback(
-  tdsqlite3_context *context,
-  int argc,
-  tdsqlite3_value **argv
-){
-
-  Fts5Auxiliary *pAux;
-  Fts5Cursor *pCsr;
-  i64 iCsrId;
-
-  assert( argc>=1 );
-  pAux = (Fts5Auxiliary*)tdsqlite3_user_data(context);
-  iCsrId = tdsqlite3_value_int64(argv[0]);
-
-  pCsr = fts5CursorFromCsrid(pAux->pGlobal, iCsrId);
-  if( pCsr==0 || pCsr->ePlan==0 ){
-    char *zErr = tdsqlite3_mprintf("no such cursor: %lld", iCsrId);
-    tdsqlite3_result_error(context, zErr, -1);
-    tdsqlite3_free(zErr);
-  }else{
-    fts5ApiInvoke(pAux, pCsr, context, argc-1, &argv[1]);
-  }
-}
-
-
-/*
-** Given cursor id iId, return a pointer to the corresponding Fts5Table 
-** object. Or NULL If the cursor id does not exist.
-*/
-static Fts5Table *tdsqlite3Fts5TableFromCsrid(
-  Fts5Global *pGlobal,            /* FTS5 global context for db handle */
-  i64 iCsrId                      /* Id of cursor to find */
-){
-  Fts5Cursor *pCsr;
-  pCsr = fts5CursorFromCsrid(pGlobal, iCsrId);
-  if( pCsr ){
-    return (Fts5Table*)pCsr->base.pVtab;
-  }
-  return 0;
-}
-
-/*
-** Return a "position-list blob" corresponding to the current position of
-** cursor pCsr via tdsqlite3_result_blob(). A position-list blob contains
-** the current position-list for each phrase in the query associated with
-** cursor pCsr.
-**
-** A position-list blob begins with (nPhrase-1) varints, where nPhrase is
-** the number of phrases in the query. Following the varints are the
-** concatenated position lists for each phrase, in order.
-**
-** The first varint (if it exists) contains the size of the position list
-** for phrase 0. The second (same disclaimer) contains the size of position
-** list 1. And so on. There is no size field for the final position list,
-** as it can be derived from the total size of the blob.
-*/
-static int fts5PoslistBlob(tdsqlite3_context *pCtx, Fts5Cursor *pCsr){
-  int i;
-  int rc = SQLITE_OK;
-  int nPhrase = tdsqlite3Fts5ExprPhraseCount(pCsr->pExpr);
-  Fts5Buffer val;
-
-  memset(&val, 0, sizeof(Fts5Buffer));
-  switch( ((Fts5Table*)(pCsr->base.pVtab))->pConfig->eDetail ){
-    case FTS5_DETAIL_FULL:
-
-      /* Append the varints */
-      for(i=0; i<(nPhrase-1); i++){
-        const u8 *dummy;
-        int nByte = tdsqlite3Fts5ExprPoslist(pCsr->pExpr, i, &dummy);
-        tdsqlite3Fts5BufferAppendVarint(&rc, &val, nByte);
-      }
-
-      /* Append the position lists */
-      for(i=0; i<nPhrase; i++){
-        const u8 *pPoslist;
-        int nPoslist;
-        nPoslist = tdsqlite3Fts5ExprPoslist(pCsr->pExpr, i, &pPoslist);
-        tdsqlite3Fts5BufferAppendBlob(&rc, &val, nPoslist, pPoslist);
-      }
-      break;
-
-    case FTS5_DETAIL_COLUMNS:
-
-      /* Append the varints */
-      for(i=0; rc==SQLITE_OK && i<(nPhrase-1); i++){
-        const u8 *dummy;
-        int nByte;
-        rc = tdsqlite3Fts5ExprPhraseCollist(pCsr->pExpr, i, &dummy, &nByte);
-        tdsqlite3Fts5BufferAppendVarint(&rc, &val, nByte);
-      }
-
-      /* Append the position lists */
-      for(i=0; rc==SQLITE_OK && i<nPhrase; i++){
-        const u8 *pPoslist;
-        int nPoslist;
-        rc = tdsqlite3Fts5ExprPhraseCollist(pCsr->pExpr, i, &pPoslist, &nPoslist);
-        tdsqlite3Fts5BufferAppendBlob(&rc, &val, nPoslist, pPoslist);
-      }
-      break;
-
-    default:
-      break;
-  }
-
-  tdsqlite3_result_blob(pCtx, val.p, val.n, tdsqlite3_free);
-  return rc;
-}
-
-/* 
-** This is the xColumn method, called by SQLite to request a value from
-** the row that the supplied cursor currently points to.
-*/
-static int fts5ColumnMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  tdsqlite3_context *pCtx,          /* Context for tdsqlite3_result_xxx() calls */
-  int iCol                        /* Index of column to read value from */
-){
-  Fts5FullTable *pTab = (Fts5FullTable*)(pCursor->pVtab);
-  Fts5Config *pConfig = pTab->p.pConfig;
-  Fts5Cursor *pCsr = (Fts5Cursor*)pCursor;
-  int rc = SQLITE_OK;
-  
-  assert( CsrFlagTest(pCsr, FTS5CSR_EOF)==0 );
-
-  if( pCsr->ePlan==FTS5_PLAN_SPECIAL ){
-    if( iCol==pConfig->nCol ){
-      tdsqlite3_result_int64(pCtx, pCsr->iSpecial);
-    }
-  }else
-
-  if( iCol==pConfig->nCol ){
-    /* User is requesting the value of the special column with the same name
-    ** as the table. Return the cursor integer id number. This value is only
-    ** useful in that it may be passed as the first argument to an FTS5
-    ** auxiliary function.  */
-    tdsqlite3_result_int64(pCtx, pCsr->iCsrId);
-  }else if( iCol==pConfig->nCol+1 ){
-
-    /* The value of the "rank" column. */
-    if( pCsr->ePlan==FTS5_PLAN_SOURCE ){
-      fts5PoslistBlob(pCtx, pCsr);
-    }else if( 
-        pCsr->ePlan==FTS5_PLAN_MATCH
-     || pCsr->ePlan==FTS5_PLAN_SORTED_MATCH
-    ){
-      if( pCsr->pRank || SQLITE_OK==(rc = fts5FindRankFunction(pCsr)) ){
-        fts5ApiInvoke(pCsr->pRank, pCsr, pCtx, pCsr->nRankArg, pCsr->apRankArg);
-      }
-    }
-  }else if( !fts5IsContentless(pTab) ){
-    pConfig->pzErrmsg = &pTab->p.base.zErrMsg;
-    rc = fts5SeekCursor(pCsr, 1);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_result_value(pCtx, tdsqlite3_column_value(pCsr->pStmt, iCol+1));
-    }
-    pConfig->pzErrmsg = 0;
-  }
-  return rc;
-}
-
-
-/*
-** This routine implements the xFindFunction method for the FTS3
-** virtual table.
-*/
-static int fts5FindFunctionMethod(
-  tdsqlite3_vtab *pVtab,            /* Virtual table handle */
-  int nUnused,                    /* Number of SQL function arguments */
-  const char *zName,              /* Name of SQL function */
-  void (**pxFunc)(tdsqlite3_context*,int,tdsqlite3_value**), /* OUT: Result */
-  void **ppArg                    /* OUT: User data for *pxFunc */
-){
-  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
-  Fts5Auxiliary *pAux;
-
-  UNUSED_PARAM(nUnused);
-  pAux = fts5FindAuxiliary(pTab, zName);
-  if( pAux ){
-    *pxFunc = fts5ApiCallback;
-    *ppArg = (void*)pAux;
-    return 1;
-  }
-
-  /* No function of the specified name was found. Return 0. */
-  return 0;
-}
-
-/*
-** Implementation of FTS5 xRename method. Rename an fts5 table.
-*/
-static int fts5RenameMethod(
-  tdsqlite3_vtab *pVtab,            /* Virtual table handle */
-  const char *zName               /* New name of table */
-){
-  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
-  return tdsqlite3Fts5StorageRename(pTab->pStorage, zName);
-}
-
-static int tdsqlite3Fts5FlushToDisk(Fts5Table *pTab){
-  fts5TripCursors((Fts5FullTable*)pTab);
-  return tdsqlite3Fts5StorageSync(((Fts5FullTable*)pTab)->pStorage);
-}
-
-/*
-** The xSavepoint() method.
-**
-** Flush the contents of the pending-terms table to disk.
-*/
-static int fts5SavepointMethod(tdsqlite3_vtab *pVtab, int iSavepoint){
-  UNUSED_PARAM(iSavepoint);  /* Call below is a no-op for NDEBUG builds */
-  fts5CheckTransactionState((Fts5FullTable*)pVtab, FTS5_SAVEPOINT, iSavepoint);
-  return tdsqlite3Fts5FlushToDisk((Fts5Table*)pVtab);
-}
-
-/*
-** The xRelease() method.
-**
-** This is a no-op.
-*/
-static int fts5ReleaseMethod(tdsqlite3_vtab *pVtab, int iSavepoint){
-  UNUSED_PARAM(iSavepoint);  /* Call below is a no-op for NDEBUG builds */
-  fts5CheckTransactionState((Fts5FullTable*)pVtab, FTS5_RELEASE, iSavepoint);
-  return tdsqlite3Fts5FlushToDisk((Fts5Table*)pVtab);
-}
-
-/*
-** The xRollbackTo() method.
-**
-** Discard the contents of the pending terms table.
-*/
-static int fts5RollbackToMethod(tdsqlite3_vtab *pVtab, int iSavepoint){
-  Fts5FullTable *pTab = (Fts5FullTable*)pVtab;
-  UNUSED_PARAM(iSavepoint);  /* Call below is a no-op for NDEBUG builds */
-  fts5CheckTransactionState(pTab, FTS5_ROLLBACKTO, iSavepoint);
-  fts5TripCursors(pTab);
-  return tdsqlite3Fts5StorageRollback(pTab->pStorage);
-}
-
-/*
-** Register a new auxiliary function with global context pGlobal.
-*/
-static int fts5CreateAux(
-  fts5_api *pApi,                 /* Global context (one per db handle) */
-  const char *zName,              /* Name of new function */
-  void *pUserData,                /* User data for aux. function */
-  fts5_extension_function xFunc,  /* Aux. function implementation */
-  void(*xDestroy)(void*)          /* Destructor for pUserData */
-){
-  Fts5Global *pGlobal = (Fts5Global*)pApi;
-  int rc = tdsqlite3_overload_function(pGlobal->db, zName, -1);
-  if( rc==SQLITE_OK ){
-    Fts5Auxiliary *pAux;
-    tdsqlite3_int64 nName;            /* Size of zName in bytes, including \0 */
-    tdsqlite3_int64 nByte;            /* Bytes of space to allocate */
-
-    nName = strlen(zName) + 1;
-    nByte = sizeof(Fts5Auxiliary) + nName;
-    pAux = (Fts5Auxiliary*)tdsqlite3_malloc64(nByte);
-    if( pAux ){
-      memset(pAux, 0, (size_t)nByte);
-      pAux->zFunc = (char*)&pAux[1];
-      memcpy(pAux->zFunc, zName, nName);
-      pAux->pGlobal = pGlobal;
-      pAux->pUserData = pUserData;
-      pAux->xFunc = xFunc;
-      pAux->xDestroy = xDestroy;
-      pAux->pNext = pGlobal->pAux;
-      pGlobal->pAux = pAux;
-    }else{
-      rc = SQLITE_NOMEM;
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Register a new tokenizer. This is the implementation of the 
-** fts5_api.xCreateTokenizer() method.
-*/
-static int fts5CreateTokenizer(
-  fts5_api *pApi,                 /* Global context (one per db handle) */
-  const char *zName,              /* Name of new function */
-  void *pUserData,                /* User data for aux. function */
-  fts5_tokenizer *pTokenizer,     /* Tokenizer implementation */
-  void(*xDestroy)(void*)          /* Destructor for pUserData */
-){
-  Fts5Global *pGlobal = (Fts5Global*)pApi;
-  Fts5TokenizerModule *pNew;
-  tdsqlite3_int64 nName;            /* Size of zName and its \0 terminator */
-  tdsqlite3_int64 nByte;            /* Bytes of space to allocate */
-  int rc = SQLITE_OK;
-
-  nName = strlen(zName) + 1;
-  nByte = sizeof(Fts5TokenizerModule) + nName;
-  pNew = (Fts5TokenizerModule*)tdsqlite3_malloc64(nByte);
-  if( pNew ){
-    memset(pNew, 0, (size_t)nByte);
-    pNew->zName = (char*)&pNew[1];
-    memcpy(pNew->zName, zName, nName);
-    pNew->pUserData = pUserData;
-    pNew->x = *pTokenizer;
-    pNew->xDestroy = xDestroy;
-    pNew->pNext = pGlobal->pTok;
-    pGlobal->pTok = pNew;
-    if( pNew->pNext==0 ){
-      pGlobal->pDfltTok = pNew;
-    }
-  }else{
-    rc = SQLITE_NOMEM;
-  }
-
-  return rc;
-}
-
-static Fts5TokenizerModule *fts5LocateTokenizer(
-  Fts5Global *pGlobal, 
-  const char *zName
-){
-  Fts5TokenizerModule *pMod = 0;
-
-  if( zName==0 ){
-    pMod = pGlobal->pDfltTok;
-  }else{
-    for(pMod=pGlobal->pTok; pMod; pMod=pMod->pNext){
-      if( tdsqlite3_stricmp(zName, pMod->zName)==0 ) break;
-    }
-  }
-
-  return pMod;
-}
-
-/*
-** Find a tokenizer. This is the implementation of the 
-** fts5_api.xFindTokenizer() method.
-*/
-static int fts5FindTokenizer(
-  fts5_api *pApi,                 /* Global context (one per db handle) */
-  const char *zName,              /* Name of new function */
-  void **ppUserData,
-  fts5_tokenizer *pTokenizer      /* Populate this object */
-){
-  int rc = SQLITE_OK;
-  Fts5TokenizerModule *pMod;
-
-  pMod = fts5LocateTokenizer((Fts5Global*)pApi, zName);
-  if( pMod ){
-    *pTokenizer = pMod->x;
-    *ppUserData = pMod->pUserData;
-  }else{
-    memset(pTokenizer, 0, sizeof(fts5_tokenizer));
-    rc = SQLITE_ERROR;
-  }
-
-  return rc;
-}
-
-static int tdsqlite3Fts5GetTokenizer(
-  Fts5Global *pGlobal, 
-  const char **azArg,
-  int nArg,
-  Fts5Tokenizer **ppTok,
-  fts5_tokenizer **ppTokApi,
-  char **pzErr
-){
-  Fts5TokenizerModule *pMod;
-  int rc = SQLITE_OK;
-
-  pMod = fts5LocateTokenizer(pGlobal, nArg==0 ? 0 : azArg[0]);
-  if( pMod==0 ){
-    assert( nArg>0 );
-    rc = SQLITE_ERROR;
-    *pzErr = tdsqlite3_mprintf("no such tokenizer: %s", azArg[0]);
-  }else{
-    rc = pMod->x.xCreate(pMod->pUserData, &azArg[1], (nArg?nArg-1:0), ppTok);
-    *ppTokApi = &pMod->x;
-    if( rc!=SQLITE_OK && pzErr ){
-      *pzErr = tdsqlite3_mprintf("error in tokenizer constructor");
-    }
-  }
-
-  if( rc!=SQLITE_OK ){
-    *ppTokApi = 0;
-    *ppTok = 0;
-  }
-
-  return rc;
-}
-
-static void fts5ModuleDestroy(void *pCtx){
-  Fts5TokenizerModule *pTok, *pNextTok;
-  Fts5Auxiliary *pAux, *pNextAux;
-  Fts5Global *pGlobal = (Fts5Global*)pCtx;
-
-  for(pAux=pGlobal->pAux; pAux; pAux=pNextAux){
-    pNextAux = pAux->pNext;
-    if( pAux->xDestroy ) pAux->xDestroy(pAux->pUserData);
-    tdsqlite3_free(pAux);
-  }
-
-  for(pTok=pGlobal->pTok; pTok; pTok=pNextTok){
-    pNextTok = pTok->pNext;
-    if( pTok->xDestroy ) pTok->xDestroy(pTok->pUserData);
-    tdsqlite3_free(pTok);
-  }
-
-  tdsqlite3_free(pGlobal);
-}
-
-static void fts5Fts5Func(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args */
-  tdsqlite3_value **apArg           /* Function arguments */
-){
-  Fts5Global *pGlobal = (Fts5Global*)tdsqlite3_user_data(pCtx);
-  fts5_api **ppApi;
-  UNUSED_PARAM(nArg);
-  assert( nArg==1 );
-  ppApi = (fts5_api**)tdsqlite3_value_pointer(apArg[0], "fts5_api_ptr");
-  if( ppApi ) *ppApi = &pGlobal->api;
-}
-
-/*
-** Implementation of fts5_source_id() function.
-*/
-static void fts5SourceIdFunc(
-  tdsqlite3_context *pCtx,          /* Function call context */
-  int nArg,                       /* Number of args */
-  tdsqlite3_value **apUnused        /* Function arguments */
-){
-  assert( nArg==0 );
-  UNUSED_PARAM2(nArg, apUnused);
-  tdsqlite3_result_text(pCtx, "fts5: 2020-01-22 18:38:59 f6affdd41608946fcfcea914ece149038a8b25a62bbe719ed2561c649b86d824", -1, SQLITE_TRANSIENT);
-}
-
-/*
-** Return true if zName is the extension on one of the shadow tables used
-** by this module.
-*/
-static int fts5ShadowName(const char *zName){
-  static const char *azName[] = {
-    "config", "content", "data", "docsize", "idx"
-  };
-  unsigned int i;
-  for(i=0; i<sizeof(azName)/sizeof(azName[0]); i++){
-    if( tdsqlite3_stricmp(zName, azName[i])==0 ) return 1;
-  }
-  return 0;
-}
-
-static int fts5Init(tdsqlite3 *db){
-  static const tdsqlite3_module fts5Mod = {
-    /* iVersion      */ 3,
-    /* xCreate       */ fts5CreateMethod,
-    /* xConnect      */ fts5ConnectMethod,
-    /* xBestIndex    */ fts5BestIndexMethod,
-    /* xDisconnect   */ fts5DisconnectMethod,
-    /* xDestroy      */ fts5DestroyMethod,
-    /* xOpen         */ fts5OpenMethod,
-    /* xClose        */ fts5CloseMethod,
-    /* xFilter       */ fts5FilterMethod,
-    /* xNext         */ fts5NextMethod,
-    /* xEof          */ fts5EofMethod,
-    /* xColumn       */ fts5ColumnMethod,
-    /* xRowid        */ fts5RowidMethod,
-    /* xUpdate       */ fts5UpdateMethod,
-    /* xBegin        */ fts5BeginMethod,
-    /* xSync         */ fts5SyncMethod,
-    /* xCommit       */ fts5CommitMethod,
-    /* xRollback     */ fts5RollbackMethod,
-    /* xFindFunction */ fts5FindFunctionMethod,
-    /* xRename       */ fts5RenameMethod,
-    /* xSavepoint    */ fts5SavepointMethod,
-    /* xRelease      */ fts5ReleaseMethod,
-    /* xRollbackTo   */ fts5RollbackToMethod,
-    /* xShadowName   */ fts5ShadowName
-  };
-
-  int rc;
-  Fts5Global *pGlobal = 0;
-
-  pGlobal = (Fts5Global*)tdsqlite3_malloc(sizeof(Fts5Global));
-  if( pGlobal==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    void *p = (void*)pGlobal;
-    memset(pGlobal, 0, sizeof(Fts5Global));
-    pGlobal->db = db;
-    pGlobal->api.iVersion = 2;
-    pGlobal->api.xCreateFunction = fts5CreateAux;
-    pGlobal->api.xCreateTokenizer = fts5CreateTokenizer;
-    pGlobal->api.xFindTokenizer = fts5FindTokenizer;
-    rc = tdsqlite3_create_module_v2(db, "fts5", &fts5Mod, p, fts5ModuleDestroy);
-    if( rc==SQLITE_OK ) rc = tdsqlite3Fts5IndexInit(db);
-    if( rc==SQLITE_OK ) rc = tdsqlite3Fts5ExprInit(pGlobal, db);
-    if( rc==SQLITE_OK ) rc = tdsqlite3Fts5AuxInit(&pGlobal->api);
-    if( rc==SQLITE_OK ) rc = tdsqlite3Fts5TokenizerInit(&pGlobal->api);
-    if( rc==SQLITE_OK ) rc = tdsqlite3Fts5VocabInit(pGlobal, db);
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3_create_function(
-          db, "fts5", 1, SQLITE_UTF8, p, fts5Fts5Func, 0, 0
-      );
-    }
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3_create_function(
-          db, "fts5_source_id", 0, SQLITE_UTF8, p, fts5SourceIdFunc, 0, 0
-      );
-    }
-  }
-
-  /* If SQLITE_FTS5_ENABLE_TEST_MI is defined, assume that the file
-  ** fts5_test_mi.c is compiled and linked into the executable. And call
-  ** its entry point to enable the matchinfo() demo.  */
-#ifdef SQLITE_FTS5_ENABLE_TEST_MI
-  if( rc==SQLITE_OK ){
-    extern int tdsqlite3Fts5TestRegisterMatchinfo(tdsqlite3*);
-    rc = tdsqlite3Fts5TestRegisterMatchinfo(db);
-  }
-#endif
-
-  return rc;
-}
-
-/*
-** The following functions are used to register the module with SQLite. If
-** this module is being built as part of the SQLite core (SQLITE_CORE is
-** defined), then tdsqlite3_open() will call tdsqlite3Fts5Init() directly.
-**
-** Or, if this module is being built as a loadable extension, 
-** tdsqlite3Fts5Init() is omitted and the two standard entry points
-** tdsqlite3_fts_init() and tdsqlite3_fts5_init() defined instead.
-*/
-#ifndef SQLITE_CORE
-#ifdef _WIN32
-__declspec(dllexport)
-#endif
-SQLITE_API int tdsqlite3_fts_init(
-  tdsqlite3 *db,
-  char **pzErrMsg,
-  const tdsqlite3_api_routines *pApi
-){
-  SQLITE_EXTENSION_INIT2(pApi);
-  (void)pzErrMsg;  /* Unused parameter */
-  return fts5Init(db);
-}
-
-#ifdef _WIN32
-__declspec(dllexport)
-#endif
-SQLITE_API int tdsqlite3_fts5_init(
-  tdsqlite3 *db,
-  char **pzErrMsg,
-  const tdsqlite3_api_routines *pApi
-){
-  SQLITE_EXTENSION_INIT2(pApi);
-  (void)pzErrMsg;  /* Unused parameter */
-  return fts5Init(db);
-}
-#else
-SQLITE_PRIVATE int tdsqlite3Fts5Init(tdsqlite3 *db){
-  return fts5Init(db);
-}
-#endif
-
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-*/
-
-
-
-/* #include "fts5Int.h" */
-
-struct Fts5Storage {
-  Fts5Config *pConfig;
-  Fts5Index *pIndex;
-  int bTotalsValid;               /* True if nTotalRow/aTotalSize[] are valid */
-  i64 nTotalRow;                  /* Total number of rows in FTS table */
-  i64 *aTotalSize;                /* Total sizes of each column */ 
-  tdsqlite3_stmt *aStmt[11];
-};
-
-
-#if FTS5_STMT_SCAN_ASC!=0 
-# error "FTS5_STMT_SCAN_ASC mismatch" 
-#endif
-#if FTS5_STMT_SCAN_DESC!=1 
-# error "FTS5_STMT_SCAN_DESC mismatch" 
-#endif
-#if FTS5_STMT_LOOKUP!=2
-# error "FTS5_STMT_LOOKUP mismatch" 
-#endif
-
-#define FTS5_STMT_INSERT_CONTENT  3
-#define FTS5_STMT_REPLACE_CONTENT 4
-#define FTS5_STMT_DELETE_CONTENT  5
-#define FTS5_STMT_REPLACE_DOCSIZE  6
-#define FTS5_STMT_DELETE_DOCSIZE  7
-#define FTS5_STMT_LOOKUP_DOCSIZE  8
-#define FTS5_STMT_REPLACE_CONFIG 9
-#define FTS5_STMT_SCAN 10
-
-/*
-** Prepare the two insert statements - Fts5Storage.pInsertContent and
-** Fts5Storage.pInsertDocsize - if they have not already been prepared.
-** Return SQLITE_OK if successful, or an SQLite error code if an error
-** occurs.
-*/
-static int fts5StorageGetStmt(
-  Fts5Storage *p,                 /* Storage handle */
-  int eStmt,                      /* FTS5_STMT_XXX constant */
-  tdsqlite3_stmt **ppStmt,          /* OUT: Prepared statement handle */
-  char **pzErrMsg                 /* OUT: Error message (if any) */
-){
-  int rc = SQLITE_OK;
-
-  /* If there is no %_docsize table, there should be no requests for 
-  ** statements to operate on it.  */
-  assert( p->pConfig->bColumnsize || (
-        eStmt!=FTS5_STMT_REPLACE_DOCSIZE 
-     && eStmt!=FTS5_STMT_DELETE_DOCSIZE 
-     && eStmt!=FTS5_STMT_LOOKUP_DOCSIZE 
-  ));
-
-  assert( eStmt>=0 && eStmt<ArraySize(p->aStmt) );
-  if( p->aStmt[eStmt]==0 ){
-    const char *azStmt[] = {
-      "SELECT %s FROM %s T WHERE T.%Q >= ? AND T.%Q <= ? ORDER BY T.%Q ASC",
-      "SELECT %s FROM %s T WHERE T.%Q <= ? AND T.%Q >= ? ORDER BY T.%Q DESC",
-      "SELECT %s FROM %s T WHERE T.%Q=?",               /* LOOKUP  */
-
-      "INSERT INTO %Q.'%q_content' VALUES(%s)",         /* INSERT_CONTENT  */
-      "REPLACE INTO %Q.'%q_content' VALUES(%s)",        /* REPLACE_CONTENT */
-      "DELETE FROM %Q.'%q_content' WHERE id=?",         /* DELETE_CONTENT  */
-      "REPLACE INTO %Q.'%q_docsize' VALUES(?,?)",       /* REPLACE_DOCSIZE  */
-      "DELETE FROM %Q.'%q_docsize' WHERE id=?",         /* DELETE_DOCSIZE  */
-
-      "SELECT sz FROM %Q.'%q_docsize' WHERE id=?",      /* LOOKUP_DOCSIZE  */
-
-      "REPLACE INTO %Q.'%q_config' VALUES(?,?)",        /* REPLACE_CONFIG */
-      "SELECT %s FROM %s AS T",                         /* SCAN */
-    };
-    Fts5Config *pC = p->pConfig;
-    char *zSql = 0;
-
-    switch( eStmt ){
-      case FTS5_STMT_SCAN:
-        zSql = tdsqlite3_mprintf(azStmt[eStmt], 
-            pC->zContentExprlist, pC->zContent
-        );
-        break;
-
-      case FTS5_STMT_SCAN_ASC:
-      case FTS5_STMT_SCAN_DESC:
-        zSql = tdsqlite3_mprintf(azStmt[eStmt], pC->zContentExprlist, 
-            pC->zContent, pC->zContentRowid, pC->zContentRowid,
-            pC->zContentRowid
-        );
-        break;
-
-      case FTS5_STMT_LOOKUP:
-        zSql = tdsqlite3_mprintf(azStmt[eStmt], 
-            pC->zContentExprlist, pC->zContent, pC->zContentRowid
-        );
-        break;
-
-      case FTS5_STMT_INSERT_CONTENT: 
-      case FTS5_STMT_REPLACE_CONTENT: {
-        int nCol = pC->nCol + 1;
-        char *zBind;
-        int i;
-
-        zBind = tdsqlite3_malloc64(1 + nCol*2);
-        if( zBind ){
-          for(i=0; i<nCol; i++){
-            zBind[i*2] = '?';
-            zBind[i*2 + 1] = ',';
-          }
-          zBind[i*2-1] = '\0';
-          zSql = tdsqlite3_mprintf(azStmt[eStmt], pC->zDb, pC->zName, zBind);
-          tdsqlite3_free(zBind);
-        }
-        break;
-      }
-
-      default:
-        zSql = tdsqlite3_mprintf(azStmt[eStmt], pC->zDb, pC->zName);
-        break;
-    }
-
-    if( zSql==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      int f = SQLITE_PREPARE_PERSISTENT;
-      if( eStmt>FTS5_STMT_LOOKUP ) f |= SQLITE_PREPARE_NO_VTAB;
-      p->pConfig->bLock++;
-      rc = tdsqlite3_prepare_v3(pC->db, zSql, -1, f, &p->aStmt[eStmt], 0);
-      p->pConfig->bLock--;
-      tdsqlite3_free(zSql);
-      if( rc!=SQLITE_OK && pzErrMsg ){
-        *pzErrMsg = tdsqlite3_mprintf("%s", tdsqlite3_errmsg(pC->db));
-      }
-    }
-  }
-
-  *ppStmt = p->aStmt[eStmt];
-  tdsqlite3_reset(*ppStmt);
-  return rc;
-}
-
-
-static int fts5ExecPrintf(
-  tdsqlite3 *db,
-  char **pzErr,
-  const char *zFormat,
-  ...
-){
-  int rc;
-  va_list ap;                     /* ... printf arguments */
-  char *zSql;
-
-  va_start(ap, zFormat);
-  zSql = tdsqlite3_vmprintf(zFormat, ap);
-
-  if( zSql==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    rc = tdsqlite3_exec(db, zSql, 0, 0, pzErr);
-    tdsqlite3_free(zSql);
-  }
-
-  va_end(ap);
-  return rc;
-}
-
-/*
-** Drop all shadow tables. Return SQLITE_OK if successful or an SQLite error
-** code otherwise.
-*/
-static int tdsqlite3Fts5DropAll(Fts5Config *pConfig){
-  int rc = fts5ExecPrintf(pConfig->db, 0, 
-      "DROP TABLE IF EXISTS %Q.'%q_data';"
-      "DROP TABLE IF EXISTS %Q.'%q_idx';"
-      "DROP TABLE IF EXISTS %Q.'%q_config';",
-      pConfig->zDb, pConfig->zName,
-      pConfig->zDb, pConfig->zName,
-      pConfig->zDb, pConfig->zName
-  );
-  if( rc==SQLITE_OK && pConfig->bColumnsize ){
-    rc = fts5ExecPrintf(pConfig->db, 0, 
-        "DROP TABLE IF EXISTS %Q.'%q_docsize';",
-        pConfig->zDb, pConfig->zName
-    );
-  }
-  if( rc==SQLITE_OK && pConfig->eContent==FTS5_CONTENT_NORMAL ){
-    rc = fts5ExecPrintf(pConfig->db, 0, 
-        "DROP TABLE IF EXISTS %Q.'%q_content';",
-        pConfig->zDb, pConfig->zName
-    );
-  }
-  return rc;
-}
-
-static void fts5StorageRenameOne(
-  Fts5Config *pConfig,            /* Current FTS5 configuration */
-  int *pRc,                       /* IN/OUT: Error code */
-  const char *zTail,              /* Tail of table name e.g. "data", "config" */
-  const char *zName               /* New name of FTS5 table */
-){
-  if( *pRc==SQLITE_OK ){
-    *pRc = fts5ExecPrintf(pConfig->db, 0, 
-        "ALTER TABLE %Q.'%q_%s' RENAME TO '%q_%s';",
-        pConfig->zDb, pConfig->zName, zTail, zName, zTail
-    );
-  }
-}
-
-static int tdsqlite3Fts5StorageRename(Fts5Storage *pStorage, const char *zName){
-  Fts5Config *pConfig = pStorage->pConfig;
-  int rc = tdsqlite3Fts5StorageSync(pStorage);
-
-  fts5StorageRenameOne(pConfig, &rc, "data", zName);
-  fts5StorageRenameOne(pConfig, &rc, "idx", zName);
-  fts5StorageRenameOne(pConfig, &rc, "config", zName);
-  if( pConfig->bColumnsize ){
-    fts5StorageRenameOne(pConfig, &rc, "docsize", zName);
-  }
-  if( pConfig->eContent==FTS5_CONTENT_NORMAL ){
-    fts5StorageRenameOne(pConfig, &rc, "content", zName);
-  }
-  return rc;
-}
-
-/*
-** Create the shadow table named zPost, with definition zDefn. Return
-** SQLITE_OK if successful, or an SQLite error code otherwise.
-*/
-static int tdsqlite3Fts5CreateTable(
-  Fts5Config *pConfig,            /* FTS5 configuration */
-  const char *zPost,              /* Shadow table to create (e.g. "content") */
-  const char *zDefn,              /* Columns etc. for shadow table */
-  int bWithout,                   /* True for without rowid */
-  char **pzErr                    /* OUT: Error message */
-){
-  int rc;
-  char *zErr = 0;
-
-  rc = fts5ExecPrintf(pConfig->db, &zErr, "CREATE TABLE %Q.'%q_%q'(%s)%s",
-      pConfig->zDb, pConfig->zName, zPost, zDefn, 
-#ifndef SQLITE_FTS5_NO_WITHOUT_ROWID
-      bWithout?" WITHOUT ROWID":
-#endif
-      ""
-  );
-  if( zErr ){
-    *pzErr = tdsqlite3_mprintf(
-        "fts5: error creating shadow table %q_%s: %s", 
-        pConfig->zName, zPost, zErr
-    );
-    tdsqlite3_free(zErr);
-  }
-
-  return rc;
-}
-
-/*
-** Open a new Fts5Index handle. If the bCreate argument is true, create
-** and initialize the underlying tables 
-**
-** If successful, set *pp to point to the new object and return SQLITE_OK.
-** Otherwise, set *pp to NULL and return an SQLite error code.
-*/
-static int tdsqlite3Fts5StorageOpen(
-  Fts5Config *pConfig, 
-  Fts5Index *pIndex, 
-  int bCreate, 
-  Fts5Storage **pp,
-  char **pzErr                    /* OUT: Error message */
-){
-  int rc = SQLITE_OK;
-  Fts5Storage *p;                 /* New object */
-  tdsqlite3_int64 nByte;            /* Bytes of space to allocate */
-
-  nByte = sizeof(Fts5Storage)               /* Fts5Storage object */
-        + pConfig->nCol * sizeof(i64);      /* Fts5Storage.aTotalSize[] */
-  *pp = p = (Fts5Storage*)tdsqlite3_malloc64(nByte);
-  if( !p ) return SQLITE_NOMEM;
-
-  memset(p, 0, (size_t)nByte);
-  p->aTotalSize = (i64*)&p[1];
-  p->pConfig = pConfig;
-  p->pIndex = pIndex;
-
-  if( bCreate ){
-    if( pConfig->eContent==FTS5_CONTENT_NORMAL ){
-      int nDefn = 32 + pConfig->nCol*10;
-      char *zDefn = tdsqlite3_malloc64(32 + (tdsqlite3_int64)pConfig->nCol * 10);
-      if( zDefn==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        int i;
-        int iOff;
-        tdsqlite3_snprintf(nDefn, zDefn, "id INTEGER PRIMARY KEY");
-        iOff = (int)strlen(zDefn);
-        for(i=0; i<pConfig->nCol; i++){
-          tdsqlite3_snprintf(nDefn-iOff, &zDefn[iOff], ", c%d", i);
-          iOff += (int)strlen(&zDefn[iOff]);
-        }
-        rc = tdsqlite3Fts5CreateTable(pConfig, "content", zDefn, 0, pzErr);
-      }
-      tdsqlite3_free(zDefn);
-    }
-
-    if( rc==SQLITE_OK && pConfig->bColumnsize ){
-      rc = tdsqlite3Fts5CreateTable(
-          pConfig, "docsize", "id INTEGER PRIMARY KEY, sz BLOB", 0, pzErr
-      );
-    }
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3Fts5CreateTable(
-          pConfig, "config", "k PRIMARY KEY, v", 1, pzErr
-      );
-    }
-    if( rc==SQLITE_OK ){
-      rc = tdsqlite3Fts5StorageConfigValue(p, "version", 0, FTS5_CURRENT_VERSION);
-    }
-  }
-
-  if( rc ){
-    tdsqlite3Fts5StorageClose(p);
-    *pp = 0;
-  }
-  return rc;
-}
-
-/*
-** Close a handle opened by an earlier call to tdsqlite3Fts5StorageOpen().
-*/
-static int tdsqlite3Fts5StorageClose(Fts5Storage *p){
-  int rc = SQLITE_OK;
-  if( p ){
-    int i;
-
-    /* Finalize all SQL statements */
-    for(i=0; i<ArraySize(p->aStmt); i++){
-      tdsqlite3_finalize(p->aStmt[i]);
-    }
-
-    tdsqlite3_free(p);
-  }
-  return rc;
-}
-
-typedef struct Fts5InsertCtx Fts5InsertCtx;
-struct Fts5InsertCtx {
-  Fts5Storage *pStorage;
-  int iCol;
-  int szCol;                      /* Size of column value in tokens */
-};
-
-/*
-** Tokenization callback used when inserting tokens into the FTS index.
-*/
-static int fts5StorageInsertCallback(
-  void *pContext,                 /* Pointer to Fts5InsertCtx object */
-  int tflags,
-  const char *pToken,             /* Buffer containing token */
-  int nToken,                     /* Size of token in bytes */
-  int iUnused1,                   /* Start offset of token */
-  int iUnused2                    /* End offset of token */
-){
-  Fts5InsertCtx *pCtx = (Fts5InsertCtx*)pContext;
-  Fts5Index *pIdx = pCtx->pStorage->pIndex;
-  UNUSED_PARAM2(iUnused1, iUnused2);
-  if( nToken>FTS5_MAX_TOKEN_SIZE ) nToken = FTS5_MAX_TOKEN_SIZE;
-  if( (tflags & FTS5_TOKEN_COLOCATED)==0 || pCtx->szCol==0 ){
-    pCtx->szCol++;
-  }
-  return tdsqlite3Fts5IndexWrite(pIdx, pCtx->iCol, pCtx->szCol-1, pToken, nToken);
-}
-
-/*
-** If a row with rowid iDel is present in the %_content table, add the
-** delete-markers to the FTS index necessary to delete it. Do not actually
-** remove the %_content row at this time though.
-*/
-static int fts5StorageDeleteFromIndex(
-  Fts5Storage *p, 
-  i64 iDel, 
-  tdsqlite3_value **apVal
-){
-  Fts5Config *pConfig = p->pConfig;
-  tdsqlite3_stmt *pSeek = 0;        /* SELECT to read row iDel from %_data */
-  int rc;                         /* Return code */
-  int rc2;                        /* tdsqlite3_reset() return code */
-  int iCol;
-  Fts5InsertCtx ctx;
-
-  if( apVal==0 ){
-    rc = fts5StorageGetStmt(p, FTS5_STMT_LOOKUP, &pSeek, 0);
-    if( rc!=SQLITE_OK ) return rc;
-    tdsqlite3_bind_int64(pSeek, 1, iDel);
-    if( tdsqlite3_step(pSeek)!=SQLITE_ROW ){
-      return tdsqlite3_reset(pSeek);
-    }
-  }
-
-  ctx.pStorage = p;
-  ctx.iCol = -1;
-  rc = tdsqlite3Fts5IndexBeginWrite(p->pIndex, 1, iDel);
-  for(iCol=1; rc==SQLITE_OK && iCol<=pConfig->nCol; iCol++){
-    if( pConfig->abUnindexed[iCol-1]==0 ){
-      const char *zText;
-      int nText;
-      if( pSeek ){
-        zText = (const char*)tdsqlite3_column_text(pSeek, iCol);
-        nText = tdsqlite3_column_bytes(pSeek, iCol);
-      }else{
-        zText = (const char*)tdsqlite3_value_text(apVal[iCol-1]);
-        nText = tdsqlite3_value_bytes(apVal[iCol-1]);
-      }
-      ctx.szCol = 0;
-      rc = tdsqlite3Fts5Tokenize(pConfig, FTS5_TOKENIZE_DOCUMENT, 
-          zText, nText, (void*)&ctx, fts5StorageInsertCallback
-      );
-      p->aTotalSize[iCol-1] -= (i64)ctx.szCol;
-    }
-  }
-  p->nTotalRow--;
-
-  rc2 = tdsqlite3_reset(pSeek);
-  if( rc==SQLITE_OK ) rc = rc2;
-  return rc;
-}
-
-
-/*
-** Insert a record into the %_docsize table. Specifically, do:
-**
-**   INSERT OR REPLACE INTO %_docsize(id, sz) VALUES(iRowid, pBuf);
-**
-** If there is no %_docsize table (as happens if the columnsize=0 option
-** is specified when the FTS5 table is created), this function is a no-op.
-*/
-static int fts5StorageInsertDocsize(
-  Fts5Storage *p,                 /* Storage module to write to */
-  i64 iRowid,                     /* id value */
-  Fts5Buffer *pBuf                /* sz value */
-){
-  int rc = SQLITE_OK;
-  if( p->pConfig->bColumnsize ){
-    tdsqlite3_stmt *pReplace = 0;
-    rc = fts5StorageGetStmt(p, FTS5_STMT_REPLACE_DOCSIZE, &pReplace, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int64(pReplace, 1, iRowid);
-      tdsqlite3_bind_blob(pReplace, 2, pBuf->p, pBuf->n, SQLITE_STATIC);
-      tdsqlite3_step(pReplace);
-      rc = tdsqlite3_reset(pReplace);
-      tdsqlite3_bind_null(pReplace, 2);
-    }
-  }
-  return rc;
-}
-
-/*
-** Load the contents of the "averages" record from disk into the 
-** p->nTotalRow and p->aTotalSize[] variables. If successful, and if
-** argument bCache is true, set the p->bTotalsValid flag to indicate
-** that the contents of aTotalSize[] and nTotalRow are valid until
-** further notice.
-**
-** Return SQLITE_OK if successful, or an SQLite error code if an error
-** occurs.
-*/
-static int fts5StorageLoadTotals(Fts5Storage *p, int bCache){
-  int rc = SQLITE_OK;
-  if( p->bTotalsValid==0 ){
-    rc = tdsqlite3Fts5IndexGetAverages(p->pIndex, &p->nTotalRow, p->aTotalSize);
-    p->bTotalsValid = bCache;
-  }
-  return rc;
-}
-
-/*
-** Store the current contents of the p->nTotalRow and p->aTotalSize[] 
-** variables in the "averages" record on disk.
-**
-** Return SQLITE_OK if successful, or an SQLite error code if an error
-** occurs.
-*/
-static int fts5StorageSaveTotals(Fts5Storage *p){
-  int nCol = p->pConfig->nCol;
-  int i;
-  Fts5Buffer buf;
-  int rc = SQLITE_OK;
-  memset(&buf, 0, sizeof(buf));
-
-  tdsqlite3Fts5BufferAppendVarint(&rc, &buf, p->nTotalRow);
-  for(i=0; i<nCol; i++){
-    tdsqlite3Fts5BufferAppendVarint(&rc, &buf, p->aTotalSize[i]);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5IndexSetAverages(p->pIndex, buf.p, buf.n);
-  }
-  tdsqlite3_free(buf.p);
-
-  return rc;
-}
-
-/*
-** Remove a row from the FTS table.
-*/
-static int tdsqlite3Fts5StorageDelete(Fts5Storage *p, i64 iDel, tdsqlite3_value **apVal){
-  Fts5Config *pConfig = p->pConfig;
-  int rc;
-  tdsqlite3_stmt *pDel = 0;
-
-  assert( pConfig->eContent!=FTS5_CONTENT_NORMAL || apVal==0 );
-  rc = fts5StorageLoadTotals(p, 1);
-
-  /* Delete the index records */
-  if( rc==SQLITE_OK ){
-    rc = fts5StorageDeleteFromIndex(p, iDel, apVal);
-  }
-
-  /* Delete the %_docsize record */
-  if( rc==SQLITE_OK && pConfig->bColumnsize ){
-    rc = fts5StorageGetStmt(p, FTS5_STMT_DELETE_DOCSIZE, &pDel, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int64(pDel, 1, iDel);
-      tdsqlite3_step(pDel);
-      rc = tdsqlite3_reset(pDel);
-    }
-  }
-
-  /* Delete the %_content record */
-  if( pConfig->eContent==FTS5_CONTENT_NORMAL ){
-    if( rc==SQLITE_OK ){
-      rc = fts5StorageGetStmt(p, FTS5_STMT_DELETE_CONTENT, &pDel, 0);
-    }
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_int64(pDel, 1, iDel);
-      tdsqlite3_step(pDel);
-      rc = tdsqlite3_reset(pDel);
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Delete all entries in the FTS5 index.
-*/
-static int tdsqlite3Fts5StorageDeleteAll(Fts5Storage *p){
-  Fts5Config *pConfig = p->pConfig;
-  int rc;
-
-  p->bTotalsValid = 0;
-
-  /* Delete the contents of the %_data and %_docsize tables. */
-  rc = fts5ExecPrintf(pConfig->db, 0,
-      "DELETE FROM %Q.'%q_data';" 
-      "DELETE FROM %Q.'%q_idx';",
-      pConfig->zDb, pConfig->zName,
-      pConfig->zDb, pConfig->zName
-  );
-  if( rc==SQLITE_OK && pConfig->bColumnsize ){
-    rc = fts5ExecPrintf(pConfig->db, 0,
-        "DELETE FROM %Q.'%q_docsize';",
-        pConfig->zDb, pConfig->zName
-    );
-  }
-
-  /* Reinitialize the %_data table. This call creates the initial structure
-  ** and averages records.  */
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5IndexReinit(p->pIndex);
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5StorageConfigValue(p, "version", 0, FTS5_CURRENT_VERSION);
-  }
-  return rc;
-}
-
-static int tdsqlite3Fts5StorageRebuild(Fts5Storage *p){
-  Fts5Buffer buf = {0,0,0};
-  Fts5Config *pConfig = p->pConfig;
-  tdsqlite3_stmt *pScan = 0;
-  Fts5InsertCtx ctx;
-  int rc, rc2;
-
-  memset(&ctx, 0, sizeof(Fts5InsertCtx));
-  ctx.pStorage = p;
-  rc = tdsqlite3Fts5StorageDeleteAll(p);
-  if( rc==SQLITE_OK ){
-    rc = fts5StorageLoadTotals(p, 1);
-  }
-
-  if( rc==SQLITE_OK ){
-    rc = fts5StorageGetStmt(p, FTS5_STMT_SCAN, &pScan, 0);
-  }
-
-  while( rc==SQLITE_OK && SQLITE_ROW==tdsqlite3_step(pScan) ){
-    i64 iRowid = tdsqlite3_column_int64(pScan, 0);
-
-    tdsqlite3Fts5BufferZero(&buf);
-    rc = tdsqlite3Fts5IndexBeginWrite(p->pIndex, 0, iRowid);
-    for(ctx.iCol=0; rc==SQLITE_OK && ctx.iCol<pConfig->nCol; ctx.iCol++){
-      ctx.szCol = 0;
-      if( pConfig->abUnindexed[ctx.iCol]==0 ){
-        const char *zText = (const char*)tdsqlite3_column_text(pScan, ctx.iCol+1);
-        int nText = tdsqlite3_column_bytes(pScan, ctx.iCol+1);
-        rc = tdsqlite3Fts5Tokenize(pConfig, 
-            FTS5_TOKENIZE_DOCUMENT,
-            zText, nText,
-            (void*)&ctx,
-            fts5StorageInsertCallback
-        );
-      }
-      tdsqlite3Fts5BufferAppendVarint(&rc, &buf, ctx.szCol);
-      p->aTotalSize[ctx.iCol] += (i64)ctx.szCol;
-    }
-    p->nTotalRow++;
-
-    if( rc==SQLITE_OK ){
-      rc = fts5StorageInsertDocsize(p, iRowid, &buf);
-    }
-  }
-  tdsqlite3_free(buf.p);
-  rc2 = tdsqlite3_reset(pScan);
-  if( rc==SQLITE_OK ) rc = rc2;
-
-  /* Write the averages record */
-  if( rc==SQLITE_OK ){
-    rc = fts5StorageSaveTotals(p);
-  }
-  return rc;
-}
-
-static int tdsqlite3Fts5StorageOptimize(Fts5Storage *p){
-  return tdsqlite3Fts5IndexOptimize(p->pIndex);
-}
-
-static int tdsqlite3Fts5StorageMerge(Fts5Storage *p, int nMerge){
-  return tdsqlite3Fts5IndexMerge(p->pIndex, nMerge);
-}
-
-static int tdsqlite3Fts5StorageReset(Fts5Storage *p){
-  return tdsqlite3Fts5IndexReset(p->pIndex);
-}
-
-/*
-** Allocate a new rowid. This is used for "external content" tables when
-** a NULL value is inserted into the rowid column. The new rowid is allocated
-** by inserting a dummy row into the %_docsize table. The dummy will be
-** overwritten later.
-**
-** If the %_docsize table does not exist, SQLITE_MISMATCH is returned. In
-** this case the user is required to provide a rowid explicitly.
-*/
-static int fts5StorageNewRowid(Fts5Storage *p, i64 *piRowid){
-  int rc = SQLITE_MISMATCH;
-  if( p->pConfig->bColumnsize ){
-    tdsqlite3_stmt *pReplace = 0;
-    rc = fts5StorageGetStmt(p, FTS5_STMT_REPLACE_DOCSIZE, &pReplace, 0);
-    if( rc==SQLITE_OK ){
-      tdsqlite3_bind_null(pReplace, 1);
-      tdsqlite3_bind_null(pReplace, 2);
-      tdsqlite3_step(pReplace);
-      rc = tdsqlite3_reset(pReplace);
-    }
-    if( rc==SQLITE_OK ){
-      *piRowid = tdsqlite3_last_insert_rowid(p->pConfig->db);
-    }
-  }
-  return rc;
-}
-
-/*
-** Insert a new row into the FTS content table.
-*/
-static int tdsqlite3Fts5StorageContentInsert(
-  Fts5Storage *p, 
-  tdsqlite3_value **apVal, 
-  i64 *piRowid
-){
-  Fts5Config *pConfig = p->pConfig;
-  int rc = SQLITE_OK;
-
-  /* Insert the new row into the %_content table. */
-  if( pConfig->eContent!=FTS5_CONTENT_NORMAL ){
-    if( tdsqlite3_value_type(apVal[1])==SQLITE_INTEGER ){
-      *piRowid = tdsqlite3_value_int64(apVal[1]);
-    }else{
-      rc = fts5StorageNewRowid(p, piRowid);
-    }
-  }else{
-    tdsqlite3_stmt *pInsert = 0;    /* Statement to write %_content table */
-    int i;                        /* Counter variable */
-    rc = fts5StorageGetStmt(p, FTS5_STMT_INSERT_CONTENT, &pInsert, 0);
-    for(i=1; rc==SQLITE_OK && i<=pConfig->nCol+1; i++){
-      rc = tdsqlite3_bind_value(pInsert, i, apVal[i]);
-    }
-    if( rc==SQLITE_OK ){
-      tdsqlite3_step(pInsert);
-      rc = tdsqlite3_reset(pInsert);
-    }
-    *piRowid = tdsqlite3_last_insert_rowid(pConfig->db);
-  }
-
-  return rc;
-}
-
-/*
-** Insert new entries into the FTS index and %_docsize table.
-*/
-static int tdsqlite3Fts5StorageIndexInsert(
-  Fts5Storage *p, 
-  tdsqlite3_value **apVal, 
-  i64 iRowid
-){
-  Fts5Config *pConfig = p->pConfig;
-  int rc = SQLITE_OK;             /* Return code */
-  Fts5InsertCtx ctx;              /* Tokenization callback context object */
-  Fts5Buffer buf;                 /* Buffer used to build up %_docsize blob */
-
-  memset(&buf, 0, sizeof(Fts5Buffer));
-  ctx.pStorage = p;
-  rc = fts5StorageLoadTotals(p, 1);
-
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5IndexBeginWrite(p->pIndex, 0, iRowid);
-  }
-  for(ctx.iCol=0; rc==SQLITE_OK && ctx.iCol<pConfig->nCol; ctx.iCol++){
-    ctx.szCol = 0;
-    if( pConfig->abUnindexed[ctx.iCol]==0 ){
-      const char *zText = (const char*)tdsqlite3_value_text(apVal[ctx.iCol+2]);
-      int nText = tdsqlite3_value_bytes(apVal[ctx.iCol+2]);
-      rc = tdsqlite3Fts5Tokenize(pConfig, 
-          FTS5_TOKENIZE_DOCUMENT,
-          zText, nText,
-          (void*)&ctx,
-          fts5StorageInsertCallback
-      );
-    }
-    tdsqlite3Fts5BufferAppendVarint(&rc, &buf, ctx.szCol);
-    p->aTotalSize[ctx.iCol] += (i64)ctx.szCol;
-  }
-  p->nTotalRow++;
-
-  /* Write the %_docsize record */
-  if( rc==SQLITE_OK ){
-    rc = fts5StorageInsertDocsize(p, iRowid, &buf);
-  }
-  tdsqlite3_free(buf.p);
-
-  return rc;
-}
-
-static int fts5StorageCount(Fts5Storage *p, const char *zSuffix, i64 *pnRow){
-  Fts5Config *pConfig = p->pConfig;
-  char *zSql;
-  int rc;
-
-  zSql = tdsqlite3_mprintf("SELECT count(*) FROM %Q.'%q_%s'", 
-      pConfig->zDb, pConfig->zName, zSuffix
-  );
-  if( zSql==0 ){
-    rc = SQLITE_NOMEM;
-  }else{
-    tdsqlite3_stmt *pCnt = 0;
-    rc = tdsqlite3_prepare_v2(pConfig->db, zSql, -1, &pCnt, 0);
-    if( rc==SQLITE_OK ){
-      if( SQLITE_ROW==tdsqlite3_step(pCnt) ){
-        *pnRow = tdsqlite3_column_int64(pCnt, 0);
-      }
-      rc = tdsqlite3_finalize(pCnt);
-    }
-  }
-
-  tdsqlite3_free(zSql);
-  return rc;
-}
-
-/*
-** Context object used by tdsqlite3Fts5StorageIntegrity().
-*/
-typedef struct Fts5IntegrityCtx Fts5IntegrityCtx;
-struct Fts5IntegrityCtx {
-  i64 iRowid;
-  int iCol;
-  int szCol;
-  u64 cksum;
-  Fts5Termset *pTermset;
-  Fts5Config *pConfig;
-};
-
-
-/*
-** Tokenization callback used by integrity check.
-*/
-static int fts5StorageIntegrityCallback(
-  void *pContext,                 /* Pointer to Fts5IntegrityCtx object */
-  int tflags,
-  const char *pToken,             /* Buffer containing token */
-  int nToken,                     /* Size of token in bytes */
-  int iUnused1,                   /* Start offset of token */
-  int iUnused2                    /* End offset of token */
-){
-  Fts5IntegrityCtx *pCtx = (Fts5IntegrityCtx*)pContext;
-  Fts5Termset *pTermset = pCtx->pTermset;
-  int bPresent;
-  int ii;
-  int rc = SQLITE_OK;
-  int iPos;
-  int iCol;
-
-  UNUSED_PARAM2(iUnused1, iUnused2);
-  if( nToken>FTS5_MAX_TOKEN_SIZE ) nToken = FTS5_MAX_TOKEN_SIZE;
-
-  if( (tflags & FTS5_TOKEN_COLOCATED)==0 || pCtx->szCol==0 ){
-    pCtx->szCol++;
-  }
-
-  switch( pCtx->pConfig->eDetail ){
-    case FTS5_DETAIL_FULL:
-      iPos = pCtx->szCol-1;
-      iCol = pCtx->iCol;
-      break;
-
-    case FTS5_DETAIL_COLUMNS:
-      iPos = pCtx->iCol;
-      iCol = 0;
-      break;
-
-    default:
-      assert( pCtx->pConfig->eDetail==FTS5_DETAIL_NONE );
-      iPos = 0;
-      iCol = 0;
-      break;
-  }
-
-  rc = tdsqlite3Fts5TermsetAdd(pTermset, 0, pToken, nToken, &bPresent);
-  if( rc==SQLITE_OK && bPresent==0 ){
-    pCtx->cksum ^= tdsqlite3Fts5IndexEntryCksum(
-        pCtx->iRowid, iCol, iPos, 0, pToken, nToken
-    );
-  }
-
-  for(ii=0; rc==SQLITE_OK && ii<pCtx->pConfig->nPrefix; ii++){
-    const int nChar = pCtx->pConfig->aPrefix[ii];
-    int nByte = tdsqlite3Fts5IndexCharlenToBytelen(pToken, nToken, nChar);
-    if( nByte ){
-      rc = tdsqlite3Fts5TermsetAdd(pTermset, ii+1, pToken, nByte, &bPresent);
-      if( bPresent==0 ){
-        pCtx->cksum ^= tdsqlite3Fts5IndexEntryCksum(
-            pCtx->iRowid, iCol, iPos, ii+1, pToken, nByte
-        );
-      }
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Check that the contents of the FTS index match that of the %_content
-** table. Return SQLITE_OK if they do, or SQLITE_CORRUPT if not. Return
-** some other SQLite error code if an error occurs while attempting to
-** determine this.
-*/
-static int tdsqlite3Fts5StorageIntegrity(Fts5Storage *p){
-  Fts5Config *pConfig = p->pConfig;
-  int rc;                         /* Return code */
-  int *aColSize;                  /* Array of size pConfig->nCol */
-  i64 *aTotalSize;                /* Array of size pConfig->nCol */
-  Fts5IntegrityCtx ctx;
-  tdsqlite3_stmt *pScan;
-
-  memset(&ctx, 0, sizeof(Fts5IntegrityCtx));
-  ctx.pConfig = p->pConfig;
-  aTotalSize = (i64*)tdsqlite3_malloc64(pConfig->nCol*(sizeof(int)+sizeof(i64)));
-  if( !aTotalSize ) return SQLITE_NOMEM;
-  aColSize = (int*)&aTotalSize[pConfig->nCol];
-  memset(aTotalSize, 0, sizeof(i64) * pConfig->nCol);
-
-  /* Generate the expected index checksum based on the contents of the
-  ** %_content table. This block stores the checksum in ctx.cksum. */
-  rc = fts5StorageGetStmt(p, FTS5_STMT_SCAN, &pScan, 0);
-  if( rc==SQLITE_OK ){
-    int rc2;
-    while( SQLITE_ROW==tdsqlite3_step(pScan) ){
-      int i;
-      ctx.iRowid = tdsqlite3_column_int64(pScan, 0);
-      ctx.szCol = 0;
-      if( pConfig->bColumnsize ){
-        rc = tdsqlite3Fts5StorageDocsize(p, ctx.iRowid, aColSize);
-      }
-      if( rc==SQLITE_OK && pConfig->eDetail==FTS5_DETAIL_NONE ){
-        rc = tdsqlite3Fts5TermsetNew(&ctx.pTermset);
-      }
-      for(i=0; rc==SQLITE_OK && i<pConfig->nCol; i++){
-        if( pConfig->abUnindexed[i] ) continue;
-        ctx.iCol = i;
-        ctx.szCol = 0;
-        if( pConfig->eDetail==FTS5_DETAIL_COLUMNS ){
-          rc = tdsqlite3Fts5TermsetNew(&ctx.pTermset);
-        }
-        if( rc==SQLITE_OK ){
-          const char *zText = (const char*)tdsqlite3_column_text(pScan, i+1);
-          int nText = tdsqlite3_column_bytes(pScan, i+1);
-          rc = tdsqlite3Fts5Tokenize(pConfig, 
-              FTS5_TOKENIZE_DOCUMENT,
-              zText, nText,
-              (void*)&ctx,
-              fts5StorageIntegrityCallback
-          );
-        }
-        if( rc==SQLITE_OK && pConfig->bColumnsize && ctx.szCol!=aColSize[i] ){
-          rc = FTS5_CORRUPT;
-        }
-        aTotalSize[i] += ctx.szCol;
-        if( pConfig->eDetail==FTS5_DETAIL_COLUMNS ){
-          tdsqlite3Fts5TermsetFree(ctx.pTermset);
-          ctx.pTermset = 0;
-        }
-      }
-      tdsqlite3Fts5TermsetFree(ctx.pTermset);
-      ctx.pTermset = 0;
-
-      if( rc!=SQLITE_OK ) break;
-    }
-    rc2 = tdsqlite3_reset(pScan);
-    if( rc==SQLITE_OK ) rc = rc2;
-  }
-
-  /* Test that the "totals" (sometimes called "averages") record looks Ok */
-  if( rc==SQLITE_OK ){
-    int i;
-    rc = fts5StorageLoadTotals(p, 0);
-    for(i=0; rc==SQLITE_OK && i<pConfig->nCol; i++){
-      if( p->aTotalSize[i]!=aTotalSize[i] ) rc = FTS5_CORRUPT;
-    }
-  }
-
-  /* Check that the %_docsize and %_content tables contain the expected
-  ** number of rows.  */
-  if( rc==SQLITE_OK && pConfig->eContent==FTS5_CONTENT_NORMAL ){
-    i64 nRow = 0;
-    rc = fts5StorageCount(p, "content", &nRow);
-    if( rc==SQLITE_OK && nRow!=p->nTotalRow ) rc = FTS5_CORRUPT;
-  }
-  if( rc==SQLITE_OK && pConfig->bColumnsize ){
-    i64 nRow = 0;
-    rc = fts5StorageCount(p, "docsize", &nRow);
-    if( rc==SQLITE_OK && nRow!=p->nTotalRow ) rc = FTS5_CORRUPT;
-  }
-
-  /* Pass the expected checksum down to the FTS index module. It will
-  ** verify, amongst other things, that it matches the checksum generated by
-  ** inspecting the index itself.  */
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5IndexIntegrityCheck(p->pIndex, ctx.cksum);
-  }
-
-  tdsqlite3_free(aTotalSize);
-  return rc;
-}
-
-/*
-** Obtain an SQLite statement handle that may be used to read data from the
-** %_content table.
-*/
-static int tdsqlite3Fts5StorageStmt(
-  Fts5Storage *p, 
-  int eStmt, 
-  tdsqlite3_stmt **pp, 
-  char **pzErrMsg
-){
-  int rc;
-  assert( eStmt==FTS5_STMT_SCAN_ASC 
-       || eStmt==FTS5_STMT_SCAN_DESC
-       || eStmt==FTS5_STMT_LOOKUP
-  );
-  rc = fts5StorageGetStmt(p, eStmt, pp, pzErrMsg);
-  if( rc==SQLITE_OK ){
-    assert( p->aStmt[eStmt]==*pp );
-    p->aStmt[eStmt] = 0;
-  }
-  return rc;
-}
-
-/*
-** Release an SQLite statement handle obtained via an earlier call to
-** tdsqlite3Fts5StorageStmt(). The eStmt parameter passed to this function
-** must match that passed to the tdsqlite3Fts5StorageStmt() call.
-*/
-static void tdsqlite3Fts5StorageStmtRelease(
-  Fts5Storage *p, 
-  int eStmt, 
-  tdsqlite3_stmt *pStmt
-){
-  assert( eStmt==FTS5_STMT_SCAN_ASC
-       || eStmt==FTS5_STMT_SCAN_DESC
-       || eStmt==FTS5_STMT_LOOKUP
-  );
-  if( p->aStmt[eStmt]==0 ){
-    tdsqlite3_reset(pStmt);
-    p->aStmt[eStmt] = pStmt;
-  }else{
-    tdsqlite3_finalize(pStmt);
-  }
-}
-
-static int fts5StorageDecodeSizeArray(
-  int *aCol, int nCol,            /* Array to populate */
-  const u8 *aBlob, int nBlob      /* Record to read varints from */
-){
-  int i;
-  int iOff = 0;
-  for(i=0; i<nCol; i++){
-    if( iOff>=nBlob ) return 1;
-    iOff += fts5GetVarint32(&aBlob[iOff], aCol[i]);
-  }
-  return (iOff!=nBlob);
-}
-
-/*
-** Argument aCol points to an array of integers containing one entry for
-** each table column. This function reads the %_docsize record for the
-** specified rowid and populates aCol[] with the results.
-**
-** An SQLite error code is returned if an error occurs, or SQLITE_OK
-** otherwise.
-*/
-static int tdsqlite3Fts5StorageDocsize(Fts5Storage *p, i64 iRowid, int *aCol){
-  int nCol = p->pConfig->nCol;    /* Number of user columns in table */
-  tdsqlite3_stmt *pLookup = 0;      /* Statement to query %_docsize */
-  int rc;                         /* Return Code */
-
-  assert( p->pConfig->bColumnsize );
-  rc = fts5StorageGetStmt(p, FTS5_STMT_LOOKUP_DOCSIZE, &pLookup, 0);
-  if( rc==SQLITE_OK ){
-    int bCorrupt = 1;
-    tdsqlite3_bind_int64(pLookup, 1, iRowid);
-    if( SQLITE_ROW==tdsqlite3_step(pLookup) ){
-      const u8 *aBlob = tdsqlite3_column_blob(pLookup, 0);
-      int nBlob = tdsqlite3_column_bytes(pLookup, 0);
-      if( 0==fts5StorageDecodeSizeArray(aCol, nCol, aBlob, nBlob) ){
-        bCorrupt = 0;
-      }
-    }
-    rc = tdsqlite3_reset(pLookup);
-    if( bCorrupt && rc==SQLITE_OK ){
-      rc = FTS5_CORRUPT;
-    }
-  }
-
-  return rc;
-}
-
-static int tdsqlite3Fts5StorageSize(Fts5Storage *p, int iCol, i64 *pnToken){
-  int rc = fts5StorageLoadTotals(p, 0);
-  if( rc==SQLITE_OK ){
-    *pnToken = 0;
-    if( iCol<0 ){
-      int i;
-      for(i=0; i<p->pConfig->nCol; i++){
-        *pnToken += p->aTotalSize[i];
-      }
-    }else if( iCol<p->pConfig->nCol ){
-      *pnToken = p->aTotalSize[iCol];
-    }else{
-      rc = SQLITE_RANGE;
-    }
-  }
-  return rc;
-}
-
-static int tdsqlite3Fts5StorageRowCount(Fts5Storage *p, i64 *pnRow){
-  int rc = fts5StorageLoadTotals(p, 0);
-  if( rc==SQLITE_OK ){
-    /* nTotalRow being zero does not necessarily indicate a corrupt 
-    ** database - it might be that the FTS5 table really does contain zero
-    ** rows. However this function is only called from the xRowCount() API,
-    ** and there is no way for that API to be invoked if the table contains
-    ** no rows. Hence the FTS5_CORRUPT return.  */
-    *pnRow = p->nTotalRow;
-    if( p->nTotalRow<=0 ) rc = FTS5_CORRUPT;
-  }
-  return rc;
-}
-
-/*
-** Flush any data currently held in-memory to disk.
-*/
-static int tdsqlite3Fts5StorageSync(Fts5Storage *p){
-  int rc = SQLITE_OK;
-  i64 iLastRowid = tdsqlite3_last_insert_rowid(p->pConfig->db);
-  if( p->bTotalsValid ){
-    rc = fts5StorageSaveTotals(p);
-    p->bTotalsValid = 0;
-  }
-  if( rc==SQLITE_OK ){
-    rc = tdsqlite3Fts5IndexSync(p->pIndex);
-  }
-  tdsqlite3_set_last_insert_rowid(p->pConfig->db, iLastRowid);
-  return rc;
-}
-
-static int tdsqlite3Fts5StorageRollback(Fts5Storage *p){
-  p->bTotalsValid = 0;
-  return tdsqlite3Fts5IndexRollback(p->pIndex);
-}
-
-static int tdsqlite3Fts5StorageConfigValue(
-  Fts5Storage *p, 
-  const char *z,
-  tdsqlite3_value *pVal,
-  int iVal
-){
-  tdsqlite3_stmt *pReplace = 0;
-  int rc = fts5StorageGetStmt(p, FTS5_STMT_REPLACE_CONFIG, &pReplace, 0);
-  if( rc==SQLITE_OK ){
-    tdsqlite3_bind_text(pReplace, 1, z, -1, SQLITE_STATIC);
-    if( pVal ){
-      tdsqlite3_bind_value(pReplace, 2, pVal);
-    }else{
-      tdsqlite3_bind_int(pReplace, 2, iVal);
-    }
-    tdsqlite3_step(pReplace);
-    rc = tdsqlite3_reset(pReplace);
-    tdsqlite3_bind_null(pReplace, 1);
-  }
-  if( rc==SQLITE_OK && pVal ){
-    int iNew = p->pConfig->iCookie + 1;
-    rc = tdsqlite3Fts5IndexSetCookie(p->pIndex, iNew);
-    if( rc==SQLITE_OK ){
-      p->pConfig->iCookie = iNew;
-    }
-  }
-  return rc;
-}
-
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-*/
-
-
-/* #include "fts5Int.h" */
-
-/**************************************************************************
-** Start of ascii tokenizer implementation.
-*/
-
-/*
-** For tokenizers with no "unicode" modifier, the set of token characters
-** is the same as the set of ASCII range alphanumeric characters. 
-*/
-static unsigned char aAsciiTokenChar[128] = {
-  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,   /* 0x00..0x0F */
-  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,   /* 0x10..0x1F */
-  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,   /* 0x20..0x2F */
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 0, 0, 0, 0, 0, 0,   /* 0x30..0x3F */
-  0, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   /* 0x40..0x4F */
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 0, 0, 0, 0, 0,   /* 0x50..0x5F */
-  0, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   /* 0x60..0x6F */
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 0, 0, 0, 0, 0,   /* 0x70..0x7F */
-};
-
-typedef struct AsciiTokenizer AsciiTokenizer;
-struct AsciiTokenizer {
-  unsigned char aTokenChar[128];
-};
-
-static void fts5AsciiAddExceptions(
-  AsciiTokenizer *p, 
-  const char *zArg, 
-  int bTokenChars
-){
-  int i;
-  for(i=0; zArg[i]; i++){
-    if( (zArg[i] & 0x80)==0 ){
-      p->aTokenChar[(int)zArg[i]] = (unsigned char)bTokenChars;
-    }
-  }
-}
-
-/*
-** Delete a "ascii" tokenizer.
-*/
-static void fts5AsciiDelete(Fts5Tokenizer *p){
-  tdsqlite3_free(p);
-}
-
-/*
-** Create an "ascii" tokenizer.
-*/
-static int fts5AsciiCreate(
-  void *pUnused, 
-  const char **azArg, int nArg,
-  Fts5Tokenizer **ppOut
-){
-  int rc = SQLITE_OK;
-  AsciiTokenizer *p = 0;
-  UNUSED_PARAM(pUnused);
-  if( nArg%2 ){
-    rc = SQLITE_ERROR;
-  }else{
-    p = tdsqlite3_malloc(sizeof(AsciiTokenizer));
-    if( p==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      int i;
-      memset(p, 0, sizeof(AsciiTokenizer));
-      memcpy(p->aTokenChar, aAsciiTokenChar, sizeof(aAsciiTokenChar));
-      for(i=0; rc==SQLITE_OK && i<nArg; i+=2){
-        const char *zArg = azArg[i+1];
-        if( 0==tdsqlite3_stricmp(azArg[i], "tokenchars") ){
-          fts5AsciiAddExceptions(p, zArg, 1);
-        }else
-        if( 0==tdsqlite3_stricmp(azArg[i], "separators") ){
-          fts5AsciiAddExceptions(p, zArg, 0);
-        }else{
-          rc = SQLITE_ERROR;
-        }
-      }
-      if( rc!=SQLITE_OK ){
-        fts5AsciiDelete((Fts5Tokenizer*)p);
-        p = 0;
-      }
-    }
-  }
-
-  *ppOut = (Fts5Tokenizer*)p;
-  return rc;
-}
-
-
-static void asciiFold(char *aOut, const char *aIn, int nByte){
-  int i;
-  for(i=0; i<nByte; i++){
-    char c = aIn[i];
-    if( c>='A' && c<='Z' ) c += 32;
-    aOut[i] = c;
-  }
-}
-
-/*
-** Tokenize some text using the ascii tokenizer.
-*/
-static int fts5AsciiTokenize(
-  Fts5Tokenizer *pTokenizer,
-  void *pCtx,
-  int iUnused,
-  const char *pText, int nText,
-  int (*xToken)(void*, int, const char*, int nToken, int iStart, int iEnd)
-){
-  AsciiTokenizer *p = (AsciiTokenizer*)pTokenizer;
-  int rc = SQLITE_OK;
-  int ie;
-  int is = 0;
-
-  char aFold[64];
-  int nFold = sizeof(aFold);
-  char *pFold = aFold;
-  unsigned char *a = p->aTokenChar;
-
-  UNUSED_PARAM(iUnused);
-
-  while( is<nText && rc==SQLITE_OK ){
-    int nByte;
-
-    /* Skip any leading divider characters. */
-    while( is<nText && ((pText[is]&0x80)==0 && a[(int)pText[is]]==0) ){
-      is++;
-    }
-    if( is==nText ) break;
-
-    /* Count the token characters */
-    ie = is+1;
-    while( ie<nText && ((pText[ie]&0x80) || a[(int)pText[ie]] ) ){
-      ie++;
-    }
-
-    /* Fold to lower case */
-    nByte = ie-is;
-    if( nByte>nFold ){
-      if( pFold!=aFold ) tdsqlite3_free(pFold);
-      pFold = tdsqlite3_malloc64((tdsqlite3_int64)nByte*2);
-      if( pFold==0 ){
-        rc = SQLITE_NOMEM;
-        break;
-      }
-      nFold = nByte*2;
-    }
-    asciiFold(pFold, &pText[is], nByte);
-
-    /* Invoke the token callback */
-    rc = xToken(pCtx, 0, pFold, nByte, is, ie);
-    is = ie+1;
-  }
-  
-  if( pFold!=aFold ) tdsqlite3_free(pFold);
-  if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-  return rc;
-}
-
-/**************************************************************************
-** Start of unicode61 tokenizer implementation.
-*/
-
-
-/*
-** The following two macros - READ_UTF8 and WRITE_UTF8 - have been copied
-** from the tdsqlite3 source file utf.c. If this file is compiled as part
-** of the amalgamation, they are not required.
-*/
-#ifndef SQLITE_AMALGAMATION
-
-static const unsigned char tdsqlite3Utf8Trans1[] = {
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
-  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-  0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00,
-};
-
-#define READ_UTF8(zIn, zTerm, c)                           \
-  c = *(zIn++);                                            \
-  if( c>=0xc0 ){                                           \
-    c = tdsqlite3Utf8Trans1[c-0xc0];                         \
-    while( zIn!=zTerm && (*zIn & 0xc0)==0x80 ){            \
-      c = (c<<6) + (0x3f & *(zIn++));                      \
-    }                                                      \
-    if( c<0x80                                             \
-        || (c&0xFFFFF800)==0xD800                          \
-        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }        \
-  }
-
-
-#define WRITE_UTF8(zOut, c) {                          \
-  if( c<0x00080 ){                                     \
-    *zOut++ = (unsigned char)(c&0xFF);                 \
-  }                                                    \
-  else if( c<0x00800 ){                                \
-    *zOut++ = 0xC0 + (unsigned char)((c>>6)&0x1F);     \
-    *zOut++ = 0x80 + (unsigned char)(c & 0x3F);        \
-  }                                                    \
-  else if( c<0x10000 ){                                \
-    *zOut++ = 0xE0 + (unsigned char)((c>>12)&0x0F);    \
-    *zOut++ = 0x80 + (unsigned char)((c>>6) & 0x3F);   \
-    *zOut++ = 0x80 + (unsigned char)(c & 0x3F);        \
-  }else{                                               \
-    *zOut++ = 0xF0 + (unsigned char)((c>>18) & 0x07);  \
-    *zOut++ = 0x80 + (unsigned char)((c>>12) & 0x3F);  \
-    *zOut++ = 0x80 + (unsigned char)((c>>6) & 0x3F);   \
-    *zOut++ = 0x80 + (unsigned char)(c & 0x3F);        \
-  }                                                    \
-}
-
-#endif /* ifndef SQLITE_AMALGAMATION */
-
-typedef struct Unicode61Tokenizer Unicode61Tokenizer;
-struct Unicode61Tokenizer {
-  unsigned char aTokenChar[128];  /* ASCII range token characters */
-  char *aFold;                    /* Buffer to fold text into */
-  int nFold;                      /* Size of aFold[] in bytes */
-  int eRemoveDiacritic;           /* True if remove_diacritics=1 is set */
-  int nException;
-  int *aiException;
-
-  unsigned char aCategory[32];    /* True for token char categories */
-};
-
-/* Values for eRemoveDiacritic (must match internals of fts5_unicode2.c) */
-#define FTS5_REMOVE_DIACRITICS_NONE    0
-#define FTS5_REMOVE_DIACRITICS_SIMPLE  1
-#define FTS5_REMOVE_DIACRITICS_COMPLEX 2
-
-static int fts5UnicodeAddExceptions(
-  Unicode61Tokenizer *p,          /* Tokenizer object */
-  const char *z,                  /* Characters to treat as exceptions */
-  int bTokenChars                 /* 1 for 'tokenchars', 0 for 'separators' */
-){
-  int rc = SQLITE_OK;
-  int n = (int)strlen(z);
-  int *aNew;
-
-  if( n>0 ){
-    aNew = (int*)tdsqlite3_realloc64(p->aiException,
-                                   (n+p->nException)*sizeof(int));
-    if( aNew ){
-      int nNew = p->nException;
-      const unsigned char *zCsr = (const unsigned char*)z;
-      const unsigned char *zTerm = (const unsigned char*)&z[n];
-      while( zCsr<zTerm ){
-        u32 iCode;
-        int bToken;
-        READ_UTF8(zCsr, zTerm, iCode);
-        if( iCode<128 ){
-          p->aTokenChar[iCode] = (unsigned char)bTokenChars;
-        }else{
-          bToken = p->aCategory[tdsqlite3Fts5UnicodeCategory(iCode)];
-          assert( (bToken==0 || bToken==1) ); 
-          assert( (bTokenChars==0 || bTokenChars==1) );
-          if( bToken!=bTokenChars && tdsqlite3Fts5UnicodeIsdiacritic(iCode)==0 ){
-            int i;
-            for(i=0; i<nNew; i++){
-              if( (u32)aNew[i]>iCode ) break;
-            }
-            memmove(&aNew[i+1], &aNew[i], (nNew-i)*sizeof(int));
-            aNew[i] = iCode;
-            nNew++;
-          }
-        }
-      }
-      p->aiException = aNew;
-      p->nException = nNew;
-    }else{
-      rc = SQLITE_NOMEM;
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Return true if the p->aiException[] array contains the value iCode.
-*/
-static int fts5UnicodeIsException(Unicode61Tokenizer *p, int iCode){
-  if( p->nException>0 ){
-    int *a = p->aiException;
-    int iLo = 0;
-    int iHi = p->nException-1;
-
-    while( iHi>=iLo ){
-      int iTest = (iHi + iLo) / 2;
-      if( iCode==a[iTest] ){
-        return 1;
-      }else if( iCode>a[iTest] ){
-        iLo = iTest+1;
-      }else{
-        iHi = iTest-1;
-      }
-    }
-  }
-
-  return 0;
-}
-
-/*
-** Delete a "unicode61" tokenizer.
-*/
-static void fts5UnicodeDelete(Fts5Tokenizer *pTok){
-  if( pTok ){
-    Unicode61Tokenizer *p = (Unicode61Tokenizer*)pTok;
-    tdsqlite3_free(p->aiException);
-    tdsqlite3_free(p->aFold);
-    tdsqlite3_free(p);
-  }
-  return;
-}
-
-static int unicodeSetCategories(Unicode61Tokenizer *p, const char *zCat){
-  const char *z = zCat;
-
-  while( *z ){
-    while( *z==' ' || *z=='\t' ) z++;
-    if( *z && tdsqlite3Fts5UnicodeCatParse(z, p->aCategory) ){
-      return SQLITE_ERROR;
-    }
-    while( *z!=' ' && *z!='\t' && *z!='\0' ) z++;
-  }
-
-  tdsqlite3Fts5UnicodeAscii(p->aCategory, p->aTokenChar);
-  return SQLITE_OK;
-}
-
-/*
-** Create a "unicode61" tokenizer.
-*/
-static int fts5UnicodeCreate(
-  void *pUnused, 
-  const char **azArg, int nArg,
-  Fts5Tokenizer **ppOut
-){
-  int rc = SQLITE_OK;             /* Return code */
-  Unicode61Tokenizer *p = 0;      /* New tokenizer object */ 
-
-  UNUSED_PARAM(pUnused);
-
-  if( nArg%2 ){
-    rc = SQLITE_ERROR;
-  }else{
-    p = (Unicode61Tokenizer*)tdsqlite3_malloc(sizeof(Unicode61Tokenizer));
-    if( p ){
-      const char *zCat = "L* N* Co";
-      int i;
-      memset(p, 0, sizeof(Unicode61Tokenizer));
-
-      p->eRemoveDiacritic = FTS5_REMOVE_DIACRITICS_SIMPLE;
-      p->nFold = 64;
-      p->aFold = tdsqlite3_malloc64(p->nFold * sizeof(char));
-      if( p->aFold==0 ){
-        rc = SQLITE_NOMEM;
-      }
-
-      /* Search for a "categories" argument */
-      for(i=0; rc==SQLITE_OK && i<nArg; i+=2){
-        if( 0==tdsqlite3_stricmp(azArg[i], "categories") ){
-          zCat = azArg[i+1];
-        }
-      }
-
-      if( rc==SQLITE_OK ){
-        rc = unicodeSetCategories(p, zCat);
-      }
-
-      for(i=0; rc==SQLITE_OK && i<nArg; i+=2){
-        const char *zArg = azArg[i+1];
-        if( 0==tdsqlite3_stricmp(azArg[i], "remove_diacritics") ){
-          if( (zArg[0]!='0' && zArg[0]!='1' && zArg[0]!='2') || zArg[1] ){
-            rc = SQLITE_ERROR;
-          }else{
-            p->eRemoveDiacritic = (zArg[0] - '0');
-            assert( p->eRemoveDiacritic==FTS5_REMOVE_DIACRITICS_NONE
-                 || p->eRemoveDiacritic==FTS5_REMOVE_DIACRITICS_SIMPLE
-                 || p->eRemoveDiacritic==FTS5_REMOVE_DIACRITICS_COMPLEX
-            );
-          }
-        }else
-        if( 0==tdsqlite3_stricmp(azArg[i], "tokenchars") ){
-          rc = fts5UnicodeAddExceptions(p, zArg, 1);
-        }else
-        if( 0==tdsqlite3_stricmp(azArg[i], "separators") ){
-          rc = fts5UnicodeAddExceptions(p, zArg, 0);
-        }else
-        if( 0==tdsqlite3_stricmp(azArg[i], "categories") ){
-          /* no-op */
-        }else{
-          rc = SQLITE_ERROR;
-        }
-      }
-
-    }else{
-      rc = SQLITE_NOMEM;
-    }
-    if( rc!=SQLITE_OK ){
-      fts5UnicodeDelete((Fts5Tokenizer*)p);
-      p = 0;
-    }
-    *ppOut = (Fts5Tokenizer*)p;
-  }
-  return rc;
-}
-
-/*
-** Return true if, for the purposes of tokenizing with the tokenizer
-** passed as the first argument, codepoint iCode is considered a token 
-** character (not a separator).
-*/
-static int fts5UnicodeIsAlnum(Unicode61Tokenizer *p, int iCode){
-  return (
-    p->aCategory[tdsqlite3Fts5UnicodeCategory((u32)iCode)]
-    ^ fts5UnicodeIsException(p, iCode)
-  );
-}
-
-static int fts5UnicodeTokenize(
-  Fts5Tokenizer *pTokenizer,
-  void *pCtx,
-  int iUnused,
-  const char *pText, int nText,
-  int (*xToken)(void*, int, const char*, int nToken, int iStart, int iEnd)
-){
-  Unicode61Tokenizer *p = (Unicode61Tokenizer*)pTokenizer;
-  int rc = SQLITE_OK;
-  unsigned char *a = p->aTokenChar;
-
-  unsigned char *zTerm = (unsigned char*)&pText[nText];
-  unsigned char *zCsr = (unsigned char *)pText;
-
-  /* Output buffer */
-  char *aFold = p->aFold;
-  int nFold = p->nFold;
-  const char *pEnd = &aFold[nFold-6];
-
-  UNUSED_PARAM(iUnused);
-
-  /* Each iteration of this loop gobbles up a contiguous run of separators,
-  ** then the next token.  */
-  while( rc==SQLITE_OK ){
-    u32 iCode;                    /* non-ASCII codepoint read from input */
-    char *zOut = aFold;
-    int is;
-    int ie;
-
-    /* Skip any separator characters. */
-    while( 1 ){
-      if( zCsr>=zTerm ) goto tokenize_done;
-      if( *zCsr & 0x80 ) {
-        /* A character outside of the ascii range. Skip past it if it is
-        ** a separator character. Or break out of the loop if it is not. */
-        is = zCsr - (unsigned char*)pText;
-        READ_UTF8(zCsr, zTerm, iCode);
-        if( fts5UnicodeIsAlnum(p, iCode) ){
-          goto non_ascii_tokenchar;
-        }
-      }else{
-        if( a[*zCsr] ){
-          is = zCsr - (unsigned char*)pText;
-          goto ascii_tokenchar;
-        }
-        zCsr++;
-      }
-    }
-
-    /* Run through the tokenchars. Fold them into the output buffer along
-    ** the way.  */
-    while( zCsr<zTerm ){
-
-      /* Grow the output buffer so that there is sufficient space to fit the
-      ** largest possible utf-8 character.  */
-      if( zOut>pEnd ){
-        aFold = tdsqlite3_malloc64((tdsqlite3_int64)nFold*2);
-        if( aFold==0 ){
-          rc = SQLITE_NOMEM;
-          goto tokenize_done;
-        }
-        zOut = &aFold[zOut - p->aFold];
-        memcpy(aFold, p->aFold, nFold);
-        tdsqlite3_free(p->aFold);
-        p->aFold = aFold;
-        p->nFold = nFold = nFold*2;
-        pEnd = &aFold[nFold-6];
-      }
-
-      if( *zCsr & 0x80 ){
-        /* An non-ascii-range character. Fold it into the output buffer if
-        ** it is a token character, or break out of the loop if it is not. */
-        READ_UTF8(zCsr, zTerm, iCode);
-        if( fts5UnicodeIsAlnum(p,iCode)||tdsqlite3Fts5UnicodeIsdiacritic(iCode) ){
- non_ascii_tokenchar:
-          iCode = tdsqlite3Fts5UnicodeFold(iCode, p->eRemoveDiacritic);
-          if( iCode ) WRITE_UTF8(zOut, iCode);
-        }else{
-          break;
-        }
-      }else if( a[*zCsr]==0 ){
-        /* An ascii-range separator character. End of token. */
-        break; 
-      }else{
- ascii_tokenchar:
-        if( *zCsr>='A' && *zCsr<='Z' ){
-          *zOut++ = *zCsr + 32;
-        }else{
-          *zOut++ = *zCsr;
-        }
-        zCsr++;
-      }
-      ie = zCsr - (unsigned char*)pText;
-    }
-
-    /* Invoke the token callback */
-    rc = xToken(pCtx, 0, aFold, zOut-aFold, is, ie); 
-  }
-  
- tokenize_done:
-  if( rc==SQLITE_DONE ) rc = SQLITE_OK;
-  return rc;
-}
-
-/**************************************************************************
-** Start of porter stemmer implementation.
-*/
-
-/* Any tokens larger than this (in bytes) are passed through without
-** stemming. */
-#define FTS5_PORTER_MAX_TOKEN 64
-
-typedef struct PorterTokenizer PorterTokenizer;
-struct PorterTokenizer {
-  fts5_tokenizer tokenizer;       /* Parent tokenizer module */
-  Fts5Tokenizer *pTokenizer;      /* Parent tokenizer instance */
-  char aBuf[FTS5_PORTER_MAX_TOKEN + 64];
-};
-
-/*
-** Delete a "porter" tokenizer.
-*/
-static void fts5PorterDelete(Fts5Tokenizer *pTok){
-  if( pTok ){
-    PorterTokenizer *p = (PorterTokenizer*)pTok;
-    if( p->pTokenizer ){
-      p->tokenizer.xDelete(p->pTokenizer);
-    }
-    tdsqlite3_free(p);
-  }
-}
-
-/*
-** Create a "porter" tokenizer.
-*/
-static int fts5PorterCreate(
-  void *pCtx, 
-  const char **azArg, int nArg,
-  Fts5Tokenizer **ppOut
-){
-  fts5_api *pApi = (fts5_api*)pCtx;
-  int rc = SQLITE_OK;
-  PorterTokenizer *pRet;
-  void *pUserdata = 0;
-  const char *zBase = "unicode61";
-
-  if( nArg>0 ){
-    zBase = azArg[0];
-  }
-
-  pRet = (PorterTokenizer*)tdsqlite3_malloc(sizeof(PorterTokenizer));
-  if( pRet ){
-    memset(pRet, 0, sizeof(PorterTokenizer));
-    rc = pApi->xFindTokenizer(pApi, zBase, &pUserdata, &pRet->tokenizer);
-  }else{
-    rc = SQLITE_NOMEM;
-  }
-  if( rc==SQLITE_OK ){
-    int nArg2 = (nArg>0 ? nArg-1 : 0);
-    const char **azArg2 = (nArg2 ? &azArg[1] : 0);
-    rc = pRet->tokenizer.xCreate(pUserdata, azArg2, nArg2, &pRet->pTokenizer);
-  }
-
-  if( rc!=SQLITE_OK ){
-    fts5PorterDelete((Fts5Tokenizer*)pRet);
-    pRet = 0;
-  }
-  *ppOut = (Fts5Tokenizer*)pRet;
-  return rc;
-}
-
-typedef struct PorterContext PorterContext;
-struct PorterContext {
-  void *pCtx;
-  int (*xToken)(void*, int, const char*, int, int, int);
-  char *aBuf;
-};
-
-typedef struct PorterRule PorterRule;
-struct PorterRule {
-  const char *zSuffix;
-  int nSuffix;
-  int (*xCond)(char *zStem, int nStem);
-  const char *zOutput;
-  int nOutput;
-};
-
-#if 0
-static int fts5PorterApply(char *aBuf, int *pnBuf, PorterRule *aRule){
-  int ret = -1;
-  int nBuf = *pnBuf;
-  PorterRule *p;
-
-  for(p=aRule; p->zSuffix; p++){
-    assert( strlen(p->zSuffix)==p->nSuffix );
-    assert( strlen(p->zOutput)==p->nOutput );
-    if( nBuf<p->nSuffix ) continue;
-    if( 0==memcmp(&aBuf[nBuf - p->nSuffix], p->zSuffix, p->nSuffix) ) break;
-  }
-
-  if( p->zSuffix ){
-    int nStem = nBuf - p->nSuffix;
-    if( p->xCond==0 || p->xCond(aBuf, nStem) ){
-      memcpy(&aBuf[nStem], p->zOutput, p->nOutput);
-      *pnBuf = nStem + p->nOutput;
-      ret = p - aRule;
-    }
-  }
-
-  return ret;
-}
-#endif
-
-static int fts5PorterIsVowel(char c, int bYIsVowel){
-  return (
-      c=='a' || c=='e' || c=='i' || c=='o' || c=='u' || (bYIsVowel && c=='y')
-  );
-}
-
-static int fts5PorterGobbleVC(char *zStem, int nStem, int bPrevCons){
-  int i;
-  int bCons = bPrevCons;
-
-  /* Scan for a vowel */
-  for(i=0; i<nStem; i++){
-    if( 0==(bCons = !fts5PorterIsVowel(zStem[i], bCons)) ) break;
-  }
-
-  /* Scan for a consonent */
-  for(i++; i<nStem; i++){
-    if( (bCons = !fts5PorterIsVowel(zStem[i], bCons)) ) return i+1;
-  }
-  return 0;
-}
-
-/* porter rule condition: (m > 0) */
-static int fts5Porter_MGt0(char *zStem, int nStem){
-  return !!fts5PorterGobbleVC(zStem, nStem, 0);
-}
-
-/* porter rule condition: (m > 1) */
-static int fts5Porter_MGt1(char *zStem, int nStem){
-  int n;
-  n = fts5PorterGobbleVC(zStem, nStem, 0);
-  if( n && fts5PorterGobbleVC(&zStem[n], nStem-n, 1) ){
-    return 1;
-  }
-  return 0;
-}
-
-/* porter rule condition: (m = 1) */
-static int fts5Porter_MEq1(char *zStem, int nStem){
-  int n;
-  n = fts5PorterGobbleVC(zStem, nStem, 0);
-  if( n && 0==fts5PorterGobbleVC(&zStem[n], nStem-n, 1) ){
-    return 1;
-  }
-  return 0;
-}
-
-/* porter rule condition: (*o) */
-static int fts5Porter_Ostar(char *zStem, int nStem){
-  if( zStem[nStem-1]=='w' || zStem[nStem-1]=='x' || zStem[nStem-1]=='y' ){
-    return 0;
-  }else{
-    int i;
-    int mask = 0;
-    int bCons = 0;
-    for(i=0; i<nStem; i++){
-      bCons = !fts5PorterIsVowel(zStem[i], bCons);
-      assert( bCons==0 || bCons==1 );
-      mask = (mask << 1) + bCons;
-    }
-    return ((mask & 0x0007)==0x0005);
-  }
-}
-
-/* porter rule condition: (m > 1 and (*S or *T)) */
-static int fts5Porter_MGt1_and_S_or_T(char *zStem, int nStem){
-  assert( nStem>0 );
-  return (zStem[nStem-1]=='s' || zStem[nStem-1]=='t') 
-      && fts5Porter_MGt1(zStem, nStem);
-}
-
-/* porter rule condition: (*v*) */
-static int fts5Porter_Vowel(char *zStem, int nStem){
-  int i;
-  for(i=0; i<nStem; i++){
-    if( fts5PorterIsVowel(zStem[i], i>0) ){
-      return 1;
-    }
-  }
-  return 0;
-}
-
-
-/**************************************************************************
-***************************************************************************
-** GENERATED CODE STARTS HERE (mkportersteps.tcl)
-*/
-
-static int fts5PorterStep4(char *aBuf, int *pnBuf){
-  int ret = 0;
-  int nBuf = *pnBuf;
-  switch( aBuf[nBuf-2] ){
-    
-    case 'a': 
-      if( nBuf>2 && 0==memcmp("al", &aBuf[nBuf-2], 2) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-2) ){
-          *pnBuf = nBuf - 2;
-        }
-      }
-      break;
-  
-    case 'c': 
-      if( nBuf>4 && 0==memcmp("ance", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
-          *pnBuf = nBuf - 4;
-        }
-      }else if( nBuf>4 && 0==memcmp("ence", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
-          *pnBuf = nBuf - 4;
-        }
-      }
-      break;
-  
-    case 'e': 
-      if( nBuf>2 && 0==memcmp("er", &aBuf[nBuf-2], 2) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-2) ){
-          *pnBuf = nBuf - 2;
-        }
-      }
-      break;
-  
-    case 'i': 
-      if( nBuf>2 && 0==memcmp("ic", &aBuf[nBuf-2], 2) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-2) ){
-          *pnBuf = nBuf - 2;
-        }
-      }
-      break;
-  
-    case 'l': 
-      if( nBuf>4 && 0==memcmp("able", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
-          *pnBuf = nBuf - 4;
-        }
-      }else if( nBuf>4 && 0==memcmp("ible", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
-          *pnBuf = nBuf - 4;
-        }
-      }
-      break;
-  
-    case 'n': 
-      if( nBuf>3 && 0==memcmp("ant", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }else if( nBuf>5 && 0==memcmp("ement", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-5) ){
-          *pnBuf = nBuf - 5;
-        }
-      }else if( nBuf>4 && 0==memcmp("ment", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-4) ){
-          *pnBuf = nBuf - 4;
-        }
-      }else if( nBuf>3 && 0==memcmp("ent", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }
-      break;
-  
-    case 'o': 
-      if( nBuf>3 && 0==memcmp("ion", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1_and_S_or_T(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }else if( nBuf>2 && 0==memcmp("ou", &aBuf[nBuf-2], 2) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-2) ){
-          *pnBuf = nBuf - 2;
-        }
-      }
-      break;
-  
-    case 's': 
-      if( nBuf>3 && 0==memcmp("ism", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }
-      break;
-  
-    case 't': 
-      if( nBuf>3 && 0==memcmp("ate", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }else if( nBuf>3 && 0==memcmp("iti", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }
-      break;
-  
-    case 'u': 
-      if( nBuf>3 && 0==memcmp("ous", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }
-      break;
-  
-    case 'v': 
-      if( nBuf>3 && 0==memcmp("ive", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }
-      break;
-  
-    case 'z': 
-      if( nBuf>3 && 0==memcmp("ize", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt1(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }
-      break;
-  
-  }
-  return ret;
-}
-  
-
-static int fts5PorterStep1B2(char *aBuf, int *pnBuf){
-  int ret = 0;
-  int nBuf = *pnBuf;
-  switch( aBuf[nBuf-2] ){
-    
-    case 'a': 
-      if( nBuf>2 && 0==memcmp("at", &aBuf[nBuf-2], 2) ){
-        memcpy(&aBuf[nBuf-2], "ate", 3);
-        *pnBuf = nBuf - 2 + 3;
-        ret = 1;
-      }
-      break;
-  
-    case 'b': 
-      if( nBuf>2 && 0==memcmp("bl", &aBuf[nBuf-2], 2) ){
-        memcpy(&aBuf[nBuf-2], "ble", 3);
-        *pnBuf = nBuf - 2 + 3;
-        ret = 1;
-      }
-      break;
-  
-    case 'i': 
-      if( nBuf>2 && 0==memcmp("iz", &aBuf[nBuf-2], 2) ){
-        memcpy(&aBuf[nBuf-2], "ize", 3);
-        *pnBuf = nBuf - 2 + 3;
-        ret = 1;
-      }
-      break;
-  
-  }
-  return ret;
-}
-  
-
-static int fts5PorterStep2(char *aBuf, int *pnBuf){
-  int ret = 0;
-  int nBuf = *pnBuf;
-  switch( aBuf[nBuf-2] ){
-    
-    case 'a': 
-      if( nBuf>7 && 0==memcmp("ational", &aBuf[nBuf-7], 7) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
-          memcpy(&aBuf[nBuf-7], "ate", 3);
-          *pnBuf = nBuf - 7 + 3;
-        }
-      }else if( nBuf>6 && 0==memcmp("tional", &aBuf[nBuf-6], 6) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-6) ){
-          memcpy(&aBuf[nBuf-6], "tion", 4);
-          *pnBuf = nBuf - 6 + 4;
-        }
-      }
-      break;
-  
-    case 'c': 
-      if( nBuf>4 && 0==memcmp("enci", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
-          memcpy(&aBuf[nBuf-4], "ence", 4);
-          *pnBuf = nBuf - 4 + 4;
-        }
-      }else if( nBuf>4 && 0==memcmp("anci", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
-          memcpy(&aBuf[nBuf-4], "ance", 4);
-          *pnBuf = nBuf - 4 + 4;
-        }
-      }
-      break;
-  
-    case 'e': 
-      if( nBuf>4 && 0==memcmp("izer", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
-          memcpy(&aBuf[nBuf-4], "ize", 3);
-          *pnBuf = nBuf - 4 + 3;
-        }
-      }
-      break;
-  
-    case 'g': 
-      if( nBuf>4 && 0==memcmp("logi", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
-          memcpy(&aBuf[nBuf-4], "log", 3);
-          *pnBuf = nBuf - 4 + 3;
-        }
-      }
-      break;
-  
-    case 'l': 
-      if( nBuf>3 && 0==memcmp("bli", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-3) ){
-          memcpy(&aBuf[nBuf-3], "ble", 3);
-          *pnBuf = nBuf - 3 + 3;
-        }
-      }else if( nBuf>4 && 0==memcmp("alli", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
-          memcpy(&aBuf[nBuf-4], "al", 2);
-          *pnBuf = nBuf - 4 + 2;
-        }
-      }else if( nBuf>5 && 0==memcmp("entli", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "ent", 3);
-          *pnBuf = nBuf - 5 + 3;
-        }
-      }else if( nBuf>3 && 0==memcmp("eli", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-3) ){
-          memcpy(&aBuf[nBuf-3], "e", 1);
-          *pnBuf = nBuf - 3 + 1;
-        }
-      }else if( nBuf>5 && 0==memcmp("ousli", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "ous", 3);
-          *pnBuf = nBuf - 5 + 3;
-        }
-      }
-      break;
-  
-    case 'o': 
-      if( nBuf>7 && 0==memcmp("ization", &aBuf[nBuf-7], 7) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
-          memcpy(&aBuf[nBuf-7], "ize", 3);
-          *pnBuf = nBuf - 7 + 3;
-        }
-      }else if( nBuf>5 && 0==memcmp("ation", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "ate", 3);
-          *pnBuf = nBuf - 5 + 3;
-        }
-      }else if( nBuf>4 && 0==memcmp("ator", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
-          memcpy(&aBuf[nBuf-4], "ate", 3);
-          *pnBuf = nBuf - 4 + 3;
-        }
-      }
-      break;
-  
-    case 's': 
-      if( nBuf>5 && 0==memcmp("alism", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "al", 2);
-          *pnBuf = nBuf - 5 + 2;
-        }
-      }else if( nBuf>7 && 0==memcmp("iveness", &aBuf[nBuf-7], 7) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
-          memcpy(&aBuf[nBuf-7], "ive", 3);
-          *pnBuf = nBuf - 7 + 3;
-        }
-      }else if( nBuf>7 && 0==memcmp("fulness", &aBuf[nBuf-7], 7) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
-          memcpy(&aBuf[nBuf-7], "ful", 3);
-          *pnBuf = nBuf - 7 + 3;
-        }
-      }else if( nBuf>7 && 0==memcmp("ousness", &aBuf[nBuf-7], 7) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-7) ){
-          memcpy(&aBuf[nBuf-7], "ous", 3);
-          *pnBuf = nBuf - 7 + 3;
-        }
-      }
-      break;
-  
-    case 't': 
-      if( nBuf>5 && 0==memcmp("aliti", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "al", 2);
-          *pnBuf = nBuf - 5 + 2;
-        }
-      }else if( nBuf>5 && 0==memcmp("iviti", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "ive", 3);
-          *pnBuf = nBuf - 5 + 3;
-        }
-      }else if( nBuf>6 && 0==memcmp("biliti", &aBuf[nBuf-6], 6) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-6) ){
-          memcpy(&aBuf[nBuf-6], "ble", 3);
-          *pnBuf = nBuf - 6 + 3;
-        }
-      }
-      break;
-  
-  }
-  return ret;
-}
-  
-
-static int fts5PorterStep3(char *aBuf, int *pnBuf){
-  int ret = 0;
-  int nBuf = *pnBuf;
-  switch( aBuf[nBuf-2] ){
-    
-    case 'a': 
-      if( nBuf>4 && 0==memcmp("ical", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
-          memcpy(&aBuf[nBuf-4], "ic", 2);
-          *pnBuf = nBuf - 4 + 2;
-        }
-      }
-      break;
-  
-    case 's': 
-      if( nBuf>4 && 0==memcmp("ness", &aBuf[nBuf-4], 4) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-4) ){
-          *pnBuf = nBuf - 4;
-        }
-      }
-      break;
-  
-    case 't': 
-      if( nBuf>5 && 0==memcmp("icate", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "ic", 2);
-          *pnBuf = nBuf - 5 + 2;
-        }
-      }else if( nBuf>5 && 0==memcmp("iciti", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "ic", 2);
-          *pnBuf = nBuf - 5 + 2;
-        }
-      }
-      break;
-  
-    case 'u': 
-      if( nBuf>3 && 0==memcmp("ful", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-        }
-      }
-      break;
-  
-    case 'v': 
-      if( nBuf>5 && 0==memcmp("ative", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          *pnBuf = nBuf - 5;
-        }
-      }
-      break;
-  
-    case 'z': 
-      if( nBuf>5 && 0==memcmp("alize", &aBuf[nBuf-5], 5) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-5) ){
-          memcpy(&aBuf[nBuf-5], "al", 2);
-          *pnBuf = nBuf - 5 + 2;
-        }
-      }
-      break;
-  
-  }
-  return ret;
-}
-  
-
-static int fts5PorterStep1B(char *aBuf, int *pnBuf){
-  int ret = 0;
-  int nBuf = *pnBuf;
-  switch( aBuf[nBuf-2] ){
-    
-    case 'e': 
-      if( nBuf>3 && 0==memcmp("eed", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_MGt0(aBuf, nBuf-3) ){
-          memcpy(&aBuf[nBuf-3], "ee", 2);
-          *pnBuf = nBuf - 3 + 2;
-        }
-      }else if( nBuf>2 && 0==memcmp("ed", &aBuf[nBuf-2], 2) ){
-        if( fts5Porter_Vowel(aBuf, nBuf-2) ){
-          *pnBuf = nBuf - 2;
-          ret = 1;
-        }
-      }
-      break;
-  
-    case 'n': 
-      if( nBuf>3 && 0==memcmp("ing", &aBuf[nBuf-3], 3) ){
-        if( fts5Porter_Vowel(aBuf, nBuf-3) ){
-          *pnBuf = nBuf - 3;
-          ret = 1;
-        }
-      }
-      break;
-  
-  }
-  return ret;
-}
-  
-/* 
-** GENERATED CODE ENDS HERE (mkportersteps.tcl)
-***************************************************************************
-**************************************************************************/
-
-static void fts5PorterStep1A(char *aBuf, int *pnBuf){
-  int nBuf = *pnBuf;
-  if( aBuf[nBuf-1]=='s' ){
-    if( aBuf[nBuf-2]=='e' ){
-      if( (nBuf>4 && aBuf[nBuf-4]=='s' && aBuf[nBuf-3]=='s') 
-       || (nBuf>3 && aBuf[nBuf-3]=='i' )
-      ){
-        *pnBuf = nBuf-2;
-      }else{
-        *pnBuf = nBuf-1;
-      }
-    }
-    else if( aBuf[nBuf-2]!='s' ){
-      *pnBuf = nBuf-1;
-    }
-  }
-}
-
-static int fts5PorterCb(
-  void *pCtx, 
-  int tflags,
-  const char *pToken, 
-  int nToken, 
-  int iStart, 
-  int iEnd
-){
-  PorterContext *p = (PorterContext*)pCtx;
-
-  char *aBuf;
-  int nBuf;
-
-  if( nToken>FTS5_PORTER_MAX_TOKEN || nToken<3 ) goto pass_through;
-  aBuf = p->aBuf;
-  nBuf = nToken;
-  memcpy(aBuf, pToken, nBuf);
-
-  /* Step 1. */
-  fts5PorterStep1A(aBuf, &nBuf);
-  if( fts5PorterStep1B(aBuf, &nBuf) ){
-    if( fts5PorterStep1B2(aBuf, &nBuf)==0 ){
-      char c = aBuf[nBuf-1];
-      if( fts5PorterIsVowel(c, 0)==0 
-       && c!='l' && c!='s' && c!='z' && c==aBuf[nBuf-2] 
-      ){
-        nBuf--;
-      }else if( fts5Porter_MEq1(aBuf, nBuf) && fts5Porter_Ostar(aBuf, nBuf) ){
-        aBuf[nBuf++] = 'e';
-      }
-    }
-  }
-
-  /* Step 1C. */
-  if( aBuf[nBuf-1]=='y' && fts5Porter_Vowel(aBuf, nBuf-1) ){
-    aBuf[nBuf-1] = 'i';
-  }
-
-  /* Steps 2 through 4. */
-  fts5PorterStep2(aBuf, &nBuf);
-  fts5PorterStep3(aBuf, &nBuf);
-  fts5PorterStep4(aBuf, &nBuf);
-
-  /* Step 5a. */
-  assert( nBuf>0 );
-  if( aBuf[nBuf-1]=='e' ){
-    if( fts5Porter_MGt1(aBuf, nBuf-1) 
-     || (fts5Porter_MEq1(aBuf, nBuf-1) && !fts5Porter_Ostar(aBuf, nBuf-1))
-    ){
-      nBuf--;
-    }
-  }
-
-  /* Step 5b. */
-  if( nBuf>1 && aBuf[nBuf-1]=='l' 
-   && aBuf[nBuf-2]=='l' && fts5Porter_MGt1(aBuf, nBuf-1) 
-  ){
-    nBuf--;
-  }
-
-  return p->xToken(p->pCtx, tflags, aBuf, nBuf, iStart, iEnd);
-
- pass_through:
-  return p->xToken(p->pCtx, tflags, pToken, nToken, iStart, iEnd);
-}
-
-/*
-** Tokenize using the porter tokenizer.
-*/
-static int fts5PorterTokenize(
-  Fts5Tokenizer *pTokenizer,
-  void *pCtx,
-  int flags,
-  const char *pText, int nText,
-  int (*xToken)(void*, int, const char*, int nToken, int iStart, int iEnd)
-){
-  PorterTokenizer *p = (PorterTokenizer*)pTokenizer;
-  PorterContext sCtx;
-  sCtx.xToken = xToken;
-  sCtx.pCtx = pCtx;
-  sCtx.aBuf = p->aBuf;
-  return p->tokenizer.xTokenize(
-      p->pTokenizer, (void*)&sCtx, flags, pText, nText, fts5PorterCb
-  );
-}
-
-/*
-** Register all built-in tokenizers with FTS5.
-*/
-static int tdsqlite3Fts5TokenizerInit(fts5_api *pApi){
-  struct BuiltinTokenizer {
-    const char *zName;
-    fts5_tokenizer x;
-  } aBuiltin[] = {
-    { "unicode61", {fts5UnicodeCreate, fts5UnicodeDelete, fts5UnicodeTokenize}},
-    { "ascii",     {fts5AsciiCreate, fts5AsciiDelete, fts5AsciiTokenize }},
-    { "porter",    {fts5PorterCreate, fts5PorterDelete, fts5PorterTokenize }},
-  };
-  
-  int rc = SQLITE_OK;             /* Return code */
-  int i;                          /* To iterate through builtin functions */
-
-  for(i=0; rc==SQLITE_OK && i<ArraySize(aBuiltin); i++){
-    rc = pApi->xCreateTokenizer(pApi,
-        aBuiltin[i].zName,
-        (void*)pApi,
-        &aBuiltin[i].x,
-        0
-    );
-  }
-
-  return rc;
-}
-
-/*
-** 2012-05-25
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-*/
-
-/*
-** DO NOT EDIT THIS MACHINE GENERATED FILE.
-*/
-
-
-/* #include <assert.h> */
-
-
-
-/*
-** If the argument is a codepoint corresponding to a lowercase letter
-** in the ASCII range with a diacritic added, return the codepoint
-** of the ASCII letter only. For example, if passed 235 - "LATIN
-** SMALL LETTER E WITH DIAERESIS" - return 65 ("LATIN SMALL LETTER
-** E"). The resuls of passing a codepoint that corresponds to an
-** uppercase letter are undefined.
-*/
-static int fts5_remove_diacritic(int c, int bComplex){
-  unsigned short aDia[] = {
-        0,  1797,  1848,  1859,  1891,  1928,  1940,  1995, 
-     2024,  2040,  2060,  2110,  2168,  2206,  2264,  2286, 
-     2344,  2383,  2472,  2488,  2516,  2596,  2668,  2732, 
-     2782,  2842,  2894,  2954,  2984,  3000,  3028,  3336, 
-     3456,  3696,  3712,  3728,  3744,  3766,  3832,  3896, 
-     3912,  3928,  3944,  3968,  4008,  4040,  4056,  4106, 
-     4138,  4170,  4202,  4234,  4266,  4296,  4312,  4344, 
-     4408,  4424,  4442,  4472,  4488,  4504,  6148,  6198, 
-     6264,  6280,  6360,  6429,  6505,  6529, 61448, 61468, 
-    61512, 61534, 61592, 61610, 61642, 61672, 61688, 61704, 
-    61726, 61784, 61800, 61816, 61836, 61880, 61896, 61914, 
-    61948, 61998, 62062, 62122, 62154, 62184, 62200, 62218, 
-    62252, 62302, 62364, 62410, 62442, 62478, 62536, 62554, 
-    62584, 62604, 62640, 62648, 62656, 62664, 62730, 62766, 
-    62830, 62890, 62924, 62974, 63032, 63050, 63082, 63118, 
-    63182, 63242, 63274, 63310, 63368, 63390, 
-  };
-#define HIBIT ((unsigned char)0x80)
-  unsigned char aChar[] = {
-    '\0',      'a',       'c',       'e',       'i',       'n',       
-    'o',       'u',       'y',       'y',       'a',       'c',       
-    'd',       'e',       'e',       'g',       'h',       'i',       
-    'j',       'k',       'l',       'n',       'o',       'r',       
-    's',       't',       'u',       'u',       'w',       'y',       
-    'z',       'o',       'u',       'a',       'i',       'o',       
-    'u',       'u'|HIBIT, 'a'|HIBIT, 'g',       'k',       'o',       
-    'o'|HIBIT, 'j',       'g',       'n',       'a'|HIBIT, 'a',       
-    'e',       'i',       'o',       'r',       'u',       's',       
-    't',       'h',       'a',       'e',       'o'|HIBIT, 'o',       
-    'o'|HIBIT, 'y',       '\0',      '\0',      '\0',      '\0',      
-    '\0',      '\0',      '\0',      '\0',      'a',       'b',       
-    'c'|HIBIT, 'd',       'd',       'e'|HIBIT, 'e',       'e'|HIBIT, 
-    'f',       'g',       'h',       'h',       'i',       'i'|HIBIT, 
-    'k',       'l',       'l'|HIBIT, 'l',       'm',       'n',       
-    'o'|HIBIT, 'p',       'r',       'r'|HIBIT, 'r',       's',       
-    's'|HIBIT, 't',       'u',       'u'|HIBIT, 'v',       'w',       
-    'w',       'x',       'y',       'z',       'h',       't',       
-    'w',       'y',       'a',       'a'|HIBIT, 'a'|HIBIT, 'a'|HIBIT, 
-    'e',       'e'|HIBIT, 'e'|HIBIT, 'i',       'o',       'o'|HIBIT, 
-    'o'|HIBIT, 'o'|HIBIT, 'u',       'u'|HIBIT, 'u'|HIBIT, 'y',       
-  };
-
-  unsigned int key = (((unsigned int)c)<<3) | 0x00000007;
-  int iRes = 0;
-  int iHi = sizeof(aDia)/sizeof(aDia[0]) - 1;
-  int iLo = 0;
-  while( iHi>=iLo ){
-    int iTest = (iHi + iLo) / 2;
-    if( key >= aDia[iTest] ){
-      iRes = iTest;
-      iLo = iTest+1;
-    }else{
-      iHi = iTest-1;
-    }
-  }
-  assert( key>=aDia[iRes] );
-  if( bComplex==0 && (aChar[iRes] & 0x80) ) return c;
-  return (c > (aDia[iRes]>>3) + (aDia[iRes]&0x07)) ? c : ((int)aChar[iRes] & 0x7F);
-}
-
-
-/*
-** Return true if the argument interpreted as a unicode codepoint
-** is a diacritical modifier character.
-*/
-static int tdsqlite3Fts5UnicodeIsdiacritic(int c){
-  unsigned int mask0 = 0x08029FDF;
-  unsigned int mask1 = 0x000361F8;
-  if( c<768 || c>817 ) return 0;
-  return (c < 768+32) ?
-      (mask0 & ((unsigned int)1 << (c-768))) :
-      (mask1 & ((unsigned int)1 << (c-768-32)));
-}
-
-
-/*
-** Interpret the argument as a unicode codepoint. If the codepoint
-** is an upper case character that has a lower case equivalent,
-** return the codepoint corresponding to the lower case version.
-** Otherwise, return a copy of the argument.
-**
-** The results are undefined if the value passed to this function
-** is less than zero.
-*/
-static int tdsqlite3Fts5UnicodeFold(int c, int eRemoveDiacritic){
-  /* Each entry in the following array defines a rule for folding a range
-  ** of codepoints to lower case. The rule applies to a range of nRange
-  ** codepoints starting at codepoint iCode.
-  **
-  ** If the least significant bit in flags is clear, then the rule applies
-  ** to all nRange codepoints (i.e. all nRange codepoints are upper case and
-  ** need to be folded). Or, if it is set, then the rule only applies to
-  ** every second codepoint in the range, starting with codepoint C.
-  **
-  ** The 7 most significant bits in flags are an index into the aiOff[]
-  ** array. If a specific codepoint C does require folding, then its lower
-  ** case equivalent is ((C + aiOff[flags>>1]) & 0xFFFF).
-  **
-  ** The contents of this array are generated by parsing the CaseFolding.txt
-  ** file distributed as part of the "Unicode Character Database". See
-  ** http://www.unicode.org for details.
-  */
-  static const struct TableEntry {
-    unsigned short iCode;
-    unsigned char flags;
-    unsigned char nRange;
-  } aEntry[] = {
-    {65, 14, 26},          {181, 64, 1},          {192, 14, 23},
-    {216, 14, 7},          {256, 1, 48},          {306, 1, 6},
-    {313, 1, 16},          {330, 1, 46},          {376, 116, 1},
-    {377, 1, 6},           {383, 104, 1},         {385, 50, 1},
-    {386, 1, 4},           {390, 44, 1},          {391, 0, 1},
-    {393, 42, 2},          {395, 0, 1},           {398, 32, 1},
-    {399, 38, 1},          {400, 40, 1},          {401, 0, 1},
-    {403, 42, 1},          {404, 46, 1},          {406, 52, 1},
-    {407, 48, 1},          {408, 0, 1},           {412, 52, 1},
-    {413, 54, 1},          {415, 56, 1},          {416, 1, 6},
-    {422, 60, 1},          {423, 0, 1},           {425, 60, 1},
-    {428, 0, 1},           {430, 60, 1},          {431, 0, 1},
-    {433, 58, 2},          {435, 1, 4},           {439, 62, 1},
-    {440, 0, 1},           {444, 0, 1},           {452, 2, 1},
-    {453, 0, 1},           {455, 2, 1},           {456, 0, 1},
-    {458, 2, 1},           {459, 1, 18},          {478, 1, 18},
-    {497, 2, 1},           {498, 1, 4},           {502, 122, 1},
-    {503, 134, 1},         {504, 1, 40},          {544, 110, 1},
-    {546, 1, 18},          {570, 70, 1},          {571, 0, 1},
-    {573, 108, 1},         {574, 68, 1},          {577, 0, 1},
-    {579, 106, 1},         {580, 28, 1},          {581, 30, 1},
-    {582, 1, 10},          {837, 36, 1},          {880, 1, 4},
-    {886, 0, 1},           {902, 18, 1},          {904, 16, 3},
-    {908, 26, 1},          {910, 24, 2},          {913, 14, 17},
-    {931, 14, 9},          {962, 0, 1},           {975, 4, 1},
-    {976, 140, 1},         {977, 142, 1},         {981, 146, 1},
-    {982, 144, 1},         {984, 1, 24},          {1008, 136, 1},
-    {1009, 138, 1},        {1012, 130, 1},        {1013, 128, 1},
-    {1015, 0, 1},          {1017, 152, 1},        {1018, 0, 1},
-    {1021, 110, 3},        {1024, 34, 16},        {1040, 14, 32},
-    {1120, 1, 34},         {1162, 1, 54},         {1216, 6, 1},
-    {1217, 1, 14},         {1232, 1, 88},         {1329, 22, 38},
-    {4256, 66, 38},        {4295, 66, 1},         {4301, 66, 1},
-    {7680, 1, 150},        {7835, 132, 1},        {7838, 96, 1},
-    {7840, 1, 96},         {7944, 150, 8},        {7960, 150, 6},
-    {7976, 150, 8},        {7992, 150, 8},        {8008, 150, 6},
-    {8025, 151, 8},        {8040, 150, 8},        {8072, 150, 8},
-    {8088, 150, 8},        {8104, 150, 8},        {8120, 150, 2},
-    {8122, 126, 2},        {8124, 148, 1},        {8126, 100, 1},
-    {8136, 124, 4},        {8140, 148, 1},        {8152, 150, 2},
-    {8154, 120, 2},        {8168, 150, 2},        {8170, 118, 2},
-    {8172, 152, 1},        {8184, 112, 2},        {8186, 114, 2},
-    {8188, 148, 1},        {8486, 98, 1},         {8490, 92, 1},
-    {8491, 94, 1},         {8498, 12, 1},         {8544, 8, 16},
-    {8579, 0, 1},          {9398, 10, 26},        {11264, 22, 47},
-    {11360, 0, 1},         {11362, 88, 1},        {11363, 102, 1},
-    {11364, 90, 1},        {11367, 1, 6},         {11373, 84, 1},
-    {11374, 86, 1},        {11375, 80, 1},        {11376, 82, 1},
-    {11378, 0, 1},         {11381, 0, 1},         {11390, 78, 2},
-    {11392, 1, 100},       {11499, 1, 4},         {11506, 0, 1},
-    {42560, 1, 46},        {42624, 1, 24},        {42786, 1, 14},
-    {42802, 1, 62},        {42873, 1, 4},         {42877, 76, 1},
-    {42878, 1, 10},        {42891, 0, 1},         {42893, 74, 1},
-    {42896, 1, 4},         {42912, 1, 10},        {42922, 72, 1},
-    {65313, 14, 26},       
-  };
-  static const unsigned short aiOff[] = {
-   1,     2,     8,     15,    16,    26,    28,    32,    
-   37,    38,    40,    48,    63,    64,    69,    71,    
-   79,    80,    116,   202,   203,   205,   206,   207,   
-   209,   210,   211,   213,   214,   217,   218,   219,   
-   775,   7264,  10792, 10795, 23228, 23256, 30204, 54721, 
-   54753, 54754, 54756, 54787, 54793, 54809, 57153, 57274, 
-   57921, 58019, 58363, 61722, 65268, 65341, 65373, 65406, 
-   65408, 65410, 65415, 65424, 65436, 65439, 65450, 65462, 
-   65472, 65476, 65478, 65480, 65482, 65488, 65506, 65511, 
-   65514, 65521, 65527, 65528, 65529, 
-  };
-
-  int ret = c;
-
-  assert( sizeof(unsigned short)==2 && sizeof(unsigned char)==1 );
-
-  if( c<128 ){
-    if( c>='A' && c<='Z' ) ret = c + ('a' - 'A');
-  }else if( c<65536 ){
-    const struct TableEntry *p;
-    int iHi = sizeof(aEntry)/sizeof(aEntry[0]) - 1;
-    int iLo = 0;
-    int iRes = -1;
-
-    assert( c>aEntry[0].iCode );
-    while( iHi>=iLo ){
-      int iTest = (iHi + iLo) / 2;
-      int cmp = (c - aEntry[iTest].iCode);
-      if( cmp>=0 ){
-        iRes = iTest;
-        iLo = iTest+1;
-      }else{
-        iHi = iTest-1;
-      }
-    }
-
-    assert( iRes>=0 && c>=aEntry[iRes].iCode );
-    p = &aEntry[iRes];
-    if( c<(p->iCode + p->nRange) && 0==(0x01 & p->flags & (p->iCode ^ c)) ){
-      ret = (c + (aiOff[p->flags>>1])) & 0x0000FFFF;
-      assert( ret>0 );
-    }
-
-    if( eRemoveDiacritic ){
-      ret = fts5_remove_diacritic(ret, eRemoveDiacritic==2);
-    }
-  }
-  
-  else if( c>=66560 && c<66600 ){
-    ret = c + 40;
-  }
-
-  return ret;
-}
-
-
-static int tdsqlite3Fts5UnicodeCatParse(const char *zCat, u8 *aArray){ 
-  aArray[0] = 1;
-  switch( zCat[0] ){
-    case 'C':
-          switch( zCat[1] ){
-            case 'c': aArray[1] = 1; break;
-            case 'f': aArray[2] = 1; break;
-            case 'n': aArray[3] = 1; break;
-            case 's': aArray[4] = 1; break;
-            case 'o': aArray[31] = 1; break;
-            case '*': 
-              aArray[1] = 1;
-              aArray[2] = 1;
-              aArray[3] = 1;
-              aArray[4] = 1;
-              aArray[31] = 1;
-              break;
-            default: return 1;          }
-          break;
-
-    case 'L':
-          switch( zCat[1] ){
-            case 'l': aArray[5] = 1; break;
-            case 'm': aArray[6] = 1; break;
-            case 'o': aArray[7] = 1; break;
-            case 't': aArray[8] = 1; break;
-            case 'u': aArray[9] = 1; break;
-            case 'C': aArray[30] = 1; break;
-            case '*': 
-              aArray[5] = 1;
-              aArray[6] = 1;
-              aArray[7] = 1;
-              aArray[8] = 1;
-              aArray[9] = 1;
-              aArray[30] = 1;
-              break;
-            default: return 1;          }
-          break;
-
-    case 'M':
-          switch( zCat[1] ){
-            case 'c': aArray[10] = 1; break;
-            case 'e': aArray[11] = 1; break;
-            case 'n': aArray[12] = 1; break;
-            case '*': 
-              aArray[10] = 1;
-              aArray[11] = 1;
-              aArray[12] = 1;
-              break;
-            default: return 1;          }
-          break;
-
-    case 'N':
-          switch( zCat[1] ){
-            case 'd': aArray[13] = 1; break;
-            case 'l': aArray[14] = 1; break;
-            case 'o': aArray[15] = 1; break;
-            case '*': 
-              aArray[13] = 1;
-              aArray[14] = 1;
-              aArray[15] = 1;
-              break;
-            default: return 1;          }
-          break;
-
-    case 'P':
-          switch( zCat[1] ){
-            case 'c': aArray[16] = 1; break;
-            case 'd': aArray[17] = 1; break;
-            case 'e': aArray[18] = 1; break;
-            case 'f': aArray[19] = 1; break;
-            case 'i': aArray[20] = 1; break;
-            case 'o': aArray[21] = 1; break;
-            case 's': aArray[22] = 1; break;
-            case '*': 
-              aArray[16] = 1;
-              aArray[17] = 1;
-              aArray[18] = 1;
-              aArray[19] = 1;
-              aArray[20] = 1;
-              aArray[21] = 1;
-              aArray[22] = 1;
-              break;
-            default: return 1;          }
-          break;
-
-    case 'S':
-          switch( zCat[1] ){
-            case 'c': aArray[23] = 1; break;
-            case 'k': aArray[24] = 1; break;
-            case 'm': aArray[25] = 1; break;
-            case 'o': aArray[26] = 1; break;
-            case '*': 
-              aArray[23] = 1;
-              aArray[24] = 1;
-              aArray[25] = 1;
-              aArray[26] = 1;
-              break;
-            default: return 1;          }
-          break;
-
-    case 'Z':
-          switch( zCat[1] ){
-            case 'l': aArray[27] = 1; break;
-            case 'p': aArray[28] = 1; break;
-            case 's': aArray[29] = 1; break;
-            case '*': 
-              aArray[27] = 1;
-              aArray[28] = 1;
-              aArray[29] = 1;
-              break;
-            default: return 1;          }
-          break;
-
-  }
-  return 0;
-}
-
-static u16 aFts5UnicodeBlock[] = {
-    0,     1471,  1753,  1760,  1760,  1760,  1760,  1760,  1760,  1760,  
-    1760,  1760,  1760,  1760,  1760,  1763,  1765,  
-  };
-static u16 aFts5UnicodeMap[] = {
-    0,     32,    33,    36,    37,    40,    41,    42,    43,    44,    
-    45,    46,    48,    58,    60,    63,    65,    91,    92,    93,    
-    94,    95,    96,    97,    123,   124,   125,   126,   127,   160,   
-    161,   162,   166,   167,   168,   169,   170,   171,   172,   173,   
-    174,   175,   176,   177,   178,   180,   181,   182,   184,   185,   
-    186,   187,   188,   191,   192,   215,   216,   223,   247,   248,   
-    256,   312,   313,   329,   330,   377,   383,   385,   387,   388,   
-    391,   394,   396,   398,   402,   403,   405,   406,   409,   412,   
-    414,   415,   417,   418,   423,   427,   428,   431,   434,   436,   
-    437,   440,   442,   443,   444,   446,   448,   452,   453,   454,   
-    455,   456,   457,   458,   459,   460,   461,   477,   478,   496,   
-    497,   498,   499,   500,   503,   505,   506,   564,   570,   572,   
-    573,   575,   577,   580,   583,   584,   592,   660,   661,   688,   
-    706,   710,   722,   736,   741,   748,   749,   750,   751,   768,   
-    880,   884,   885,   886,   890,   891,   894,   900,   902,   903,   
-    904,   908,   910,   912,   913,   931,   940,   975,   977,   978,   
-    981,   984,   1008,  1012,  1014,  1015,  1018,  1020,  1021,  1072,  
-    1120,  1154,  1155,  1160,  1162,  1217,  1231,  1232,  1329,  1369,  
-    1370,  1377,  1417,  1418,  1423,  1425,  1470,  1471,  1472,  1473,  
-    1475,  1476,  1478,  1479,  1488,  1520,  1523,  1536,  1542,  1545,  
-    1547,  1548,  1550,  1552,  1563,  1566,  1568,  1600,  1601,  1611,  
-    1632,  1642,  1646,  1648,  1649,  1748,  1749,  1750,  1757,  1758,  
-    1759,  1765,  1767,  1769,  1770,  1774,  1776,  1786,  1789,  1791,  
-    1792,  1807,  1808,  1809,  1810,  1840,  1869,  1958,  1969,  1984,  
-    1994,  2027,  2036,  2038,  2039,  2042,  2048,  2070,  2074,  2075,  
-    2084,  2085,  2088,  2089,  2096,  2112,  2137,  2142,  2208,  2210,  
-    2276,  2304,  2307,  2308,  2362,  2363,  2364,  2365,  2366,  2369,  
-    2377,  2381,  2382,  2384,  2385,  2392,  2402,  2404,  2406,  2416,  
-    2417,  2418,  2425,  2433,  2434,  2437,  2447,  2451,  2474,  2482,  
-    2486,  2492,  2493,  2494,  2497,  2503,  2507,  2509,  2510,  2519,  
-    2524,  2527,  2530,  2534,  2544,  2546,  2548,  2554,  2555,  2561,  
-    2563,  2565,  2575,  2579,  2602,  2610,  2613,  2616,  2620,  2622,  
-    2625,  2631,  2635,  2641,  2649,  2654,  2662,  2672,  2674,  2677,  
-    2689,  2691,  2693,  2703,  2707,  2730,  2738,  2741,  2748,  2749,  
-    2750,  2753,  2759,  2761,  2763,  2765,  2768,  2784,  2786,  2790,  
-    2800,  2801,  2817,  2818,  2821,  2831,  2835,  2858,  2866,  2869,  
-    2876,  2877,  2878,  2879,  2880,  2881,  2887,  2891,  2893,  2902,  
-    2903,  2908,  2911,  2914,  2918,  2928,  2929,  2930,  2946,  2947,  
-    2949,  2958,  2962,  2969,  2972,  2974,  2979,  2984,  2990,  3006,  
-    3008,  3009,  3014,  3018,  3021,  3024,  3031,  3046,  3056,  3059,  
-    3065,  3066,  3073,  3077,  3086,  3090,  3114,  3125,  3133,  3134,  
-    3137,  3142,  3146,  3157,  3160,  3168,  3170,  3174,  3192,  3199,  
-    3202,  3205,  3214,  3218,  3242,  3253,  3260,  3261,  3262,  3263,  
-    3264,  3270,  3271,  3274,  3276,  3285,  3294,  3296,  3298,  3302,  
-    3313,  3330,  3333,  3342,  3346,  3389,  3390,  3393,  3398,  3402,  
-    3405,  3406,  3415,  3424,  3426,  3430,  3440,  3449,  3450,  3458,  
-    3461,  3482,  3507,  3517,  3520,  3530,  3535,  3538,  3542,  3544,  
-    3570,  3572,  3585,  3633,  3634,  3636,  3647,  3648,  3654,  3655,  
-    3663,  3664,  3674,  3713,  3716,  3719,  3722,  3725,  3732,  3737,  
-    3745,  3749,  3751,  3754,  3757,  3761,  3762,  3764,  3771,  3773,  
-    3776,  3782,  3784,  3792,  3804,  3840,  3841,  3844,  3859,  3860,  
-    3861,  3864,  3866,  3872,  3882,  3892,  3893,  3894,  3895,  3896,  
-    3897,  3898,  3899,  3900,  3901,  3902,  3904,  3913,  3953,  3967,  
-    3968,  3973,  3974,  3976,  3981,  3993,  4030,  4038,  4039,  4046,  
-    4048,  4053,  4057,  4096,  4139,  4141,  4145,  4146,  4152,  4153,  
-    4155,  4157,  4159,  4160,  4170,  4176,  4182,  4184,  4186,  4190,  
-    4193,  4194,  4197,  4199,  4206,  4209,  4213,  4226,  4227,  4229,  
-    4231,  4237,  4238,  4239,  4240,  4250,  4253,  4254,  4256,  4295,  
-    4301,  4304,  4347,  4348,  4349,  4682,  4688,  4696,  4698,  4704,  
-    4746,  4752,  4786,  4792,  4800,  4802,  4808,  4824,  4882,  4888,  
-    4957,  4960,  4969,  4992,  5008,  5024,  5120,  5121,  5741,  5743,  
-    5760,  5761,  5787,  5788,  5792,  5867,  5870,  5888,  5902,  5906,  
-    5920,  5938,  5941,  5952,  5970,  5984,  5998,  6002,  6016,  6068,  
-    6070,  6071,  6078,  6086,  6087,  6089,  6100,  6103,  6104,  6107,  
-    6108,  6109,  6112,  6128,  6144,  6150,  6151,  6155,  6158,  6160,  
-    6176,  6211,  6212,  6272,  6313,  6314,  6320,  6400,  6432,  6435,  
-    6439,  6441,  6448,  6450,  6451,  6457,  6464,  6468,  6470,  6480,  
-    6512,  6528,  6576,  6593,  6600,  6608,  6618,  6622,  6656,  6679,  
-    6681,  6686,  6688,  6741,  6742,  6743,  6744,  6752,  6753,  6754,  
-    6755,  6757,  6765,  6771,  6783,  6784,  6800,  6816,  6823,  6824,  
-    6912,  6916,  6917,  6964,  6965,  6966,  6971,  6972,  6973,  6978,  
-    6979,  6981,  6992,  7002,  7009,  7019,  7028,  7040,  7042,  7043,  
-    7073,  7074,  7078,  7080,  7082,  7083,  7084,  7086,  7088,  7098,  
-    7142,  7143,  7144,  7146,  7149,  7150,  7151,  7154,  7164,  7168,  
-    7204,  7212,  7220,  7222,  7227,  7232,  7245,  7248,  7258,  7288,  
-    7294,  7360,  7376,  7379,  7380,  7393,  7394,  7401,  7405,  7406,  
-    7410,  7412,  7413,  7424,  7468,  7531,  7544,  7545,  7579,  7616,  
-    7676,  7680,  7830,  7838,  7936,  7944,  7952,  7960,  7968,  7976,  
-    7984,  7992,  8000,  8008,  8016,  8025,  8027,  8029,  8031,  8033,  
-    8040,  8048,  8064,  8072,  8080,  8088,  8096,  8104,  8112,  8118,  
-    8120,  8124,  8125,  8126,  8127,  8130,  8134,  8136,  8140,  8141,  
-    8144,  8150,  8152,  8157,  8160,  8168,  8173,  8178,  8182,  8184,  
-    8188,  8189,  8192,  8203,  8208,  8214,  8216,  8217,  8218,  8219,  
-    8221,  8222,  8223,  8224,  8232,  8233,  8234,  8239,  8240,  8249,  
-    8250,  8251,  8255,  8257,  8260,  8261,  8262,  8263,  8274,  8275,  
-    8276,  8277,  8287,  8288,  8298,  8304,  8305,  8308,  8314,  8317,  
-    8318,  8319,  8320,  8330,  8333,  8334,  8336,  8352,  8400,  8413,  
-    8417,  8418,  8421,  8448,  8450,  8451,  8455,  8456,  8458,  8459,  
-    8462,  8464,  8467,  8468,  8469,  8470,  8472,  8473,  8478,  8484,  
-    8485,  8486,  8487,  8488,  8489,  8490,  8494,  8495,  8496,  8500,  
-    8501,  8505,  8506,  8508,  8510,  8512,  8517,  8519,  8522,  8523,  
-    8524,  8526,  8527,  8528,  8544,  8579,  8581,  8585,  8592,  8597,  
-    8602,  8604,  8608,  8609,  8611,  8612,  8614,  8615,  8622,  8623,  
-    8654,  8656,  8658,  8659,  8660,  8661,  8692,  8960,  8968,  8972,  
-    8992,  8994,  9001,  9002,  9003,  9084,  9085,  9115,  9140,  9180,  
-    9186,  9216,  9280,  9312,  9372,  9450,  9472,  9655,  9656,  9665,  
-    9666,  9720,  9728,  9839,  9840,  9985,  10088, 10089, 10090, 10091, 
-    10092, 10093, 10094, 10095, 10096, 10097, 10098, 10099, 10100, 10101, 
-    10102, 10132, 10176, 10181, 10182, 10183, 10214, 10215, 10216, 10217, 
-    10218, 10219, 10220, 10221, 10222, 10223, 10224, 10240, 10496, 10627, 
-    10628, 10629, 10630, 10631, 10632, 10633, 10634, 10635, 10636, 10637, 
-    10638, 10639, 10640, 10641, 10642, 10643, 10644, 10645, 10646, 10647, 
-    10648, 10649, 10712, 10713, 10714, 10715, 10716, 10748, 10749, 10750, 
-    11008, 11056, 11077, 11079, 11088, 11264, 11312, 11360, 11363, 11365, 
-    11367, 11374, 11377, 11378, 11380, 11381, 11383, 11388, 11390, 11393, 
-    11394, 11492, 11493, 11499, 11503, 11506, 11513, 11517, 11518, 11520, 
-    11559, 11565, 11568, 11631, 11632, 11647, 11648, 11680, 11688, 11696, 
-    11704, 11712, 11720, 11728, 11736, 11744, 11776, 11778, 11779, 11780, 
-    11781, 11782, 11785, 11786, 11787, 11788, 11789, 11790, 11799, 11800, 
-    11802, 11803, 11804, 11805, 11806, 11808, 11809, 11810, 11811, 11812, 
-    11813, 11814, 11815, 11816, 11817, 11818, 11823, 11824, 11834, 11904, 
-    11931, 12032, 12272, 12288, 12289, 12292, 12293, 12294, 12295, 12296, 
-    12297, 12298, 12299, 12300, 12301, 12302, 12303, 12304, 12305, 12306, 
-    12308, 12309, 12310, 12311, 12312, 12313, 12314, 12315, 12316, 12317, 
-    12318, 12320, 12321, 12330, 12334, 12336, 12337, 12342, 12344, 12347, 
-    12348, 12349, 12350, 12353, 12441, 12443, 12445, 12447, 12448, 12449, 
-    12539, 12540, 12543, 12549, 12593, 12688, 12690, 12694, 12704, 12736, 
-    12784, 12800, 12832, 12842, 12872, 12880, 12881, 12896, 12928, 12938, 
-    12977, 12992, 13056, 13312, 19893, 19904, 19968, 40908, 40960, 40981, 
-    40982, 42128, 42192, 42232, 42238, 42240, 42508, 42509, 42512, 42528, 
-    42538, 42560, 42606, 42607, 42608, 42611, 42612, 42622, 42623, 42624, 
-    42655, 42656, 42726, 42736, 42738, 42752, 42775, 42784, 42786, 42800, 
-    42802, 42864, 42865, 42873, 42878, 42888, 42889, 42891, 42896, 42912, 
-    43000, 43002, 43003, 43010, 43011, 43014, 43015, 43019, 43020, 43043, 
-    43045, 43047, 43048, 43056, 43062, 43064, 43065, 43072, 43124, 43136, 
-    43138, 43188, 43204, 43214, 43216, 43232, 43250, 43256, 43259, 43264, 
-    43274, 43302, 43310, 43312, 43335, 43346, 43359, 43360, 43392, 43395, 
-    43396, 43443, 43444, 43446, 43450, 43452, 43453, 43457, 43471, 43472, 
-    43486, 43520, 43561, 43567, 43569, 43571, 43573, 43584, 43587, 43588, 
-    43596, 43597, 43600, 43612, 43616, 43632, 43633, 43639, 43642, 43643, 
-    43648, 43696, 43697, 43698, 43701, 43703, 43705, 43710, 43712, 43713, 
-    43714, 43739, 43741, 43742, 43744, 43755, 43756, 43758, 43760, 43762, 
-    43763, 43765, 43766, 43777, 43785, 43793, 43808, 43816, 43968, 44003, 
-    44005, 44006, 44008, 44009, 44011, 44012, 44013, 44016, 44032, 55203, 
-    55216, 55243, 55296, 56191, 56319, 57343, 57344, 63743, 63744, 64112, 
-    64256, 64275, 64285, 64286, 64287, 64297, 64298, 64312, 64318, 64320, 
-    64323, 64326, 64434, 64467, 64830, 64831, 64848, 64914, 65008, 65020, 
-    65021, 65024, 65040, 65047, 65048, 65049, 65056, 65072, 65073, 65075, 
-    65077, 65078, 65079, 65080, 65081, 65082, 65083, 65084, 65085, 65086, 
-    65087, 65088, 65089, 65090, 65091, 65092, 65093, 65095, 65096, 65097, 
-    65101, 65104, 65108, 65112, 65113, 65114, 65115, 65116, 65117, 65118, 
-    65119, 65122, 65123, 65124, 65128, 65129, 65130, 65136, 65142, 65279, 
-    65281, 65284, 65285, 65288, 65289, 65290, 65291, 65292, 65293, 65294, 
-    65296, 65306, 65308, 65311, 65313, 65339, 65340, 65341, 65342, 65343, 
-    65344, 65345, 65371, 65372, 65373, 65374, 65375, 65376, 65377, 65378, 
-    65379, 65380, 65382, 65392, 65393, 65438, 65440, 65474, 65482, 65490, 
-    65498, 65504, 65506, 65507, 65508, 65509, 65512, 65513, 65517, 65529, 
-    65532, 0,     13,    40,    60,    63,    80,    128,   256,   263,   
-    311,   320,   373,   377,   394,   400,   464,   509,   640,   672,   
-    768,   800,   816,   833,   834,   842,   896,   927,   928,   968,   
-    976,   977,   1024,  1064,  1104,  1184,  2048,  2056,  2058,  2103,  
-    2108,  2111,  2135,  2136,  2304,  2326,  2335,  2336,  2367,  2432,  
-    2494,  2560,  2561,  2565,  2572,  2576,  2581,  2585,  2616,  2623,  
-    2624,  2640,  2656,  2685,  2687,  2816,  2873,  2880,  2904,  2912,  
-    2936,  3072,  3680,  4096,  4097,  4098,  4099,  4152,  4167,  4178,  
-    4198,  4224,  4226,  4227,  4272,  4275,  4279,  4281,  4283,  4285,  
-    4286,  4304,  4336,  4352,  4355,  4391,  4396,  4397,  4406,  4416,  
-    4480,  4482,  4483,  4531,  4534,  4543,  4545,  4549,  4560,  5760,  
-    5803,  5804,  5805,  5806,  5808,  5814,  5815,  5824,  8192,  9216,  
-    9328,  12288, 26624, 28416, 28496, 28497, 28559, 28563, 45056, 53248, 
-    53504, 53545, 53605, 53607, 53610, 53613, 53619, 53627, 53635, 53637, 
-    53644, 53674, 53678, 53760, 53826, 53829, 54016, 54112, 54272, 54298, 
-    54324, 54350, 54358, 54376, 54402, 54428, 54430, 54434, 54437, 54441, 
-    54446, 54454, 54459, 54461, 54469, 54480, 54506, 54532, 54535, 54541, 
-    54550, 54558, 54584, 54587, 54592, 54598, 54602, 54610, 54636, 54662, 
-    54688, 54714, 54740, 54766, 54792, 54818, 54844, 54870, 54896, 54922, 
-    54952, 54977, 54978, 55003, 55004, 55010, 55035, 55036, 55061, 55062, 
-    55068, 55093, 55094, 55119, 55120, 55126, 55151, 55152, 55177, 55178, 
-    55184, 55209, 55210, 55235, 55236, 55242, 55246, 60928, 60933, 60961, 
-    60964, 60967, 60969, 60980, 60985, 60987, 60994, 60999, 61001, 61003, 
-    61005, 61009, 61012, 61015, 61017, 61019, 61021, 61023, 61025, 61028, 
-    61031, 61036, 61044, 61049, 61054, 61056, 61067, 61089, 61093, 61099, 
-    61168, 61440, 61488, 61600, 61617, 61633, 61649, 61696, 61712, 61744, 
-    61808, 61926, 61968, 62016, 62032, 62208, 62256, 62263, 62336, 62368, 
-    62406, 62432, 62464, 62528, 62530, 62713, 62720, 62784, 62800, 62971, 
-    63045, 63104, 63232, 0,     42710, 42752, 46900, 46912, 47133, 63488, 
-    1,     32,    256,   0,     65533, 
-  };
-static u16 aFts5UnicodeData[] = {
-    1025,  61,    117,   55,    117,   54,    50,    53,    57,    53,    
-    49,    85,    333,   85,    121,   85,    841,   54,    53,    50,    
-    56,    48,    56,    837,   54,    57,    50,    57,    1057,  61,    
-    53,    151,   58,    53,    56,    58,    39,    52,    57,    34,    
-    58,    56,    58,    57,    79,    56,    37,    85,    56,    47,    
-    39,    51,    111,   53,    745,   57,    233,   773,   57,    261,   
-    1822,  37,    542,   37,    1534,  222,   69,    73,    37,    126,   
-    126,   73,    69,    137,   37,    73,    37,    105,   101,   73,    
-    37,    73,    37,    190,   158,   37,    126,   126,   73,    37,    
-    126,   94,    37,    39,    94,    69,    135,   41,    40,    37,    
-    41,    40,    37,    41,    40,    37,    542,   37,    606,   37,    
-    41,    40,    37,    126,   73,    37,    1886,  197,   73,    37,    
-    73,    69,    126,   105,   37,    286,   2181,  39,    869,   582,   
-    152,   390,   472,   166,   248,   38,    56,    38,    568,   3596,  
-    158,   38,    56,    94,    38,    101,   53,    88,    41,    53,    
-    105,   41,    73,    37,    553,   297,   1125,  94,    37,    105,   
-    101,   798,   133,   94,    57,    126,   94,    37,    1641,  1541,  
-    1118,  58,    172,   75,    1790,  478,   37,    2846,  1225,  38,    
-    213,   1253,  53,    49,    55,    1452,  49,    44,    53,    76,    
-    53,    76,    53,    44,    871,   103,   85,    162,   121,   85,    
-    55,    85,    90,    364,   53,    85,    1031,  38,    327,   684,   
-    333,   149,   71,    44,    3175,  53,    39,    236,   34,    58,    
-    204,   70,    76,    58,    140,   71,    333,   103,   90,    39,    
-    469,   34,    39,    44,    967,   876,   2855,  364,   39,    333,   
-    1063,  300,   70,    58,    117,   38,    711,   140,   38,    300,   
-    38,    108,   38,    172,   501,   807,   108,   53,    39,    359,   
-    876,   108,   42,    1735,  44,    42,    44,    39,    106,   268,   
-    138,   44,    74,    39,    236,   327,   76,    85,    333,   53,    
-    38,    199,   231,   44,    74,    263,   71,    711,   231,   39,    
-    135,   44,    39,    106,   140,   74,    74,    44,    39,    42,    
-    71,    103,   76,    333,   71,    87,    207,   58,    55,    76,    
-    42,    199,   71,    711,   231,   71,    71,    71,    44,    106,   
-    76,    76,    108,   44,    135,   39,    333,   76,    103,   44,    
-    76,    42,    295,   103,   711,   231,   71,    167,   44,    39,    
-    106,   172,   76,    42,    74,    44,    39,    71,    76,    333,   
-    53,    55,    44,    74,    263,   71,    711,   231,   71,    167,   
-    44,    39,    42,    44,    42,    140,   74,    74,    44,    44,    
-    42,    71,    103,   76,    333,   58,    39,    207,   44,    39,    
-    199,   103,   135,   71,    39,    71,    71,    103,   391,   74,    
-    44,    74,    106,   106,   44,    39,    42,    333,   111,   218,   
-    55,    58,    106,   263,   103,   743,   327,   167,   39,    108,   
-    138,   108,   140,   76,    71,    71,    76,    333,   239,   58,    
-    74,    263,   103,   743,   327,   167,   44,    39,    42,    44,    
-    170,   44,    74,    74,    76,    74,    39,    71,    76,    333,   
-    71,    74,    263,   103,   1319,  39,    106,   140,   106,   106,   
-    44,    39,    42,    71,    76,    333,   207,   58,    199,   74,    
-    583,   775,   295,   39,    231,   44,    106,   108,   44,    266,   
-    74,    53,    1543,  44,    71,    236,   55,    199,   38,    268,   
-    53,    333,   85,    71,    39,    71,    39,    39,    135,   231,   
-    103,   39,    39,    71,    135,   44,    71,    204,   76,    39,    
-    167,   38,    204,   333,   135,   39,    122,   501,   58,    53,    
-    122,   76,    218,   333,   335,   58,    44,    58,    44,    58,    
-    44,    54,    50,    54,    50,    74,    263,   1159,  460,   42,    
-    172,   53,    76,    167,   364,   1164,  282,   44,    218,   90,    
-    181,   154,   85,    1383,  74,    140,   42,    204,   42,    76,    
-    74,    76,    39,    333,   213,   199,   74,    76,    135,   108,   
-    39,    106,   71,    234,   103,   140,   423,   44,    74,    76,    
-    202,   44,    39,    42,    333,   106,   44,    90,    1225,  41,    
-    41,    1383,  53,    38,    10631, 135,   231,   39,    135,   1319,  
-    135,   1063,  135,   231,   39,    135,   487,   1831,  135,   2151,  
-    108,   309,   655,   519,   346,   2727,  49,    19847, 85,    551,   
-    61,    839,   54,    50,    2407,  117,   110,   423,   135,   108,   
-    583,   108,   85,    583,   76,    423,   103,   76,    1671,  76,    
-    42,    236,   266,   44,    74,    364,   117,   38,    117,   55,    
-    39,    44,    333,   335,   213,   49,    149,   108,   61,    333,   
-    1127,  38,    1671,  1319,  44,    39,    2247,  935,   108,   138,   
-    76,    106,   74,    44,    202,   108,   58,    85,    333,   967,   
-    167,   1415,  554,   231,   74,    333,   47,    1114,  743,   76,    
-    106,   85,    1703,  42,    44,    42,    236,   44,    42,    44,    
-    74,    268,   202,   332,   44,    333,   333,   245,   38,    213,   
-    140,   42,    1511,  44,    42,    172,   42,    44,    170,   44,    
-    74,    231,   333,   245,   346,   300,   314,   76,    42,    967,   
-    42,    140,   74,    76,    42,    44,    74,    71,    333,   1415,  
-    44,    42,    76,    106,   44,    42,    108,   74,    149,   1159,  
-    266,   268,   74,    76,    181,   333,   103,   333,   967,   198,   
-    85,    277,   108,   53,    428,   42,    236,   135,   44,    135,   
-    74,    44,    71,    1413,  2022,  421,   38,    1093,  1190,  1260,  
-    140,   4830,  261,   3166,  261,   265,   197,   201,   261,   265,   
-    261,   265,   197,   201,   261,   41,    41,    41,    94,    229,   
-    265,   453,   261,   264,   261,   264,   261,   264,   165,   69,    
-    137,   40,    56,    37,    120,   101,   69,    137,   40,    120,   
-    133,   69,    137,   120,   261,   169,   120,   101,   69,    137,   
-    40,    88,    381,   162,   209,   85,    52,    51,    54,    84,    
-    51,    54,    52,    277,   59,    60,    162,   61,    309,   52,    
-    51,    149,   80,    117,   57,    54,    50,    373,   57,    53,    
-    48,    341,   61,    162,   194,   47,    38,    207,   121,   54,    
-    50,    38,    335,   121,   54,    50,    422,   855,   428,   139,   
-    44,    107,   396,   90,    41,    154,   41,    90,    37,    105,   
-    69,    105,   37,    58,    41,    90,    57,    169,   218,   41,    
-    58,    41,    58,    41,    58,    137,   58,    37,    137,   37,    
-    135,   37,    90,    69,    73,    185,   94,    101,   58,    57,    
-    90,    37,    58,    527,   1134,  94,    142,   47,    185,   186,   
-    89,    154,   57,    90,    57,    90,    57,    250,   57,    1018,  
-    89,    90,    57,    58,    57,    1018,  8601,  282,   153,   666,   
-    89,    250,   54,    50,    2618,  57,    986,   825,   1306,  217,   
-    602,   1274,  378,   1935,  2522,  719,   5882,  57,    314,   57,    
-    1754,  281,   3578,  57,    4634,  3322,  54,    50,    54,    50,    
-    54,    50,    54,    50,    54,    50,    54,    50,    54,    50,    
-    975,   1434,  185,   54,    50,    1017,  54,    50,    54,    50,    
-    54,    50,    54,    50,    54,    50,    537,   8218,  4217,  54,    
-    50,    54,    50,    54,    50,    54,    50,    54,    50,    54,    
-    50,    54,    50,    54,    50,    54,    50,    54,    50,    54,    
-    50,    2041,  54,    50,    54,    50,    1049,  54,    50,    8281,  
-    1562,  697,   90,    217,   346,   1513,  1509,  126,   73,    69,    
-    254,   105,   37,    94,    37,    94,    165,   70,    105,   37,    
-    3166,  37,    218,   158,   108,   94,    149,   47,    85,    1221,  
-    37,    37,    1799,  38,    53,    44,    743,   231,   231,   231,   
-    231,   231,   231,   231,   231,   1036,  85,    52,    51,    52,    
-    51,    117,   52,    51,    53,    52,    51,    309,   49,    85,    
-    49,    53,    52,    51,    85,    52,    51,    54,    50,    54,    
-    50,    54,    50,    54,    50,    181,   38,    341,   81,    858,   
-    2874,  6874,  410,   61,    117,   58,    38,    39,    46,    54,    
-    50,    54,    50,    54,    50,    54,    50,    54,    50,    90,    
-    54,    50,    54,    50,    54,    50,    54,    50,    49,    54,    
-    82,    58,    302,   140,   74,    49,    166,   90,    110,   38,    
-    39,    53,    90,    2759,  76,    88,    70,    39,    49,    2887,  
-    53,    102,   39,    1319,  3015,  90,    143,   346,   871,   1178,  
-    519,   1018,  335,   986,   271,   58,    495,   1050,  335,   1274,  
-    495,   2042,  8218,  39,    39,    2074,  39,    39,    679,   38,    
-    36583, 1786,  1287,  198,   85,    8583,  38,    117,   519,   333,   
-    71,    1502,  39,    44,    107,   53,    332,   53,    38,    798,   
-    44,    2247,  334,   76,    213,   760,   294,   88,    478,   69,    
-    2014,  38,    261,   190,   350,   38,    88,    158,   158,   382,   
-    70,    37,    231,   44,    103,   44,    135,   44,    743,   74,    
-    76,    42,    154,   207,   90,    55,    58,    1671,  149,   74,    
-    1607,  522,   44,    85,    333,   588,   199,   117,   39,    333,   
-    903,   268,   85,    743,   364,   74,    53,    935,   108,   42,    
-    1511,  44,    74,    140,   74,    44,    138,   437,   38,    333,   
-    85,    1319,  204,   74,    76,    74,    76,    103,   44,    263,   
-    44,    42,    333,   149,   519,   38,    199,   122,   39,    42,    
-    1543,  44,    39,    108,   71,    76,    167,   76,    39,    44,    
-    39,    71,    38,    85,    359,   42,    76,    74,    85,    39,    
-    70,    42,    44,    199,   199,   199,   231,   231,   1127,  74,    
-    44,    74,    44,    74,    53,    42,    44,    333,   39,    39,    
-    743,   1575,  36,    68,    68,    36,    63,    63,    11719, 3399,  
-    229,   165,   39,    44,    327,   57,    423,   167,   39,    71,    
-    71,    3463,  536,   11623, 54,    50,    2055,  1735,  391,   55,    
-    58,    524,   245,   54,    50,    53,    236,   53,    81,    80,    
-    54,    50,    54,    50,    54,    50,    54,    50,    54,    50,    
-    54,    50,    54,    50,    54,    50,    85,    54,    50,    149,   
-    112,   117,   149,   49,    54,    50,    54,    50,    54,    50,    
-    117,   57,    49,    121,   53,    55,    85,    167,   4327,  34,    
-    117,   55,    117,   54,    50,    53,    57,    53,    49,    85,    
-    333,   85,    121,   85,    841,   54,    53,    50,    56,    48,    
-    56,    837,   54,    57,    50,    57,    54,    50,    53,    54,    
-    50,    85,    327,   38,    1447,  70,    999,   199,   199,   199,   
-    103,   87,    57,    56,    58,    87,    58,    153,   90,    98,    
-    90,    391,   839,   615,   71,    487,   455,   3943,  117,   1455,  
-    314,   1710,  143,   570,   47,    410,   1466,  44,    935,   1575,  
-    999,   143,   551,   46,    263,   46,    967,   53,    1159,  263,   
-    53,    174,   1289,  1285,  2503,  333,   199,   39,    1415,  71,    
-    39,    743,   53,    271,   711,   207,   53,    839,   53,    1799,  
-    71,    39,    108,   76,    140,   135,   103,   871,   108,   44,    
-    271,   309,   935,   79,    53,    1735,  245,   711,   271,   615,   
-    271,   2343,  1007,  42,    44,    42,    1703,  492,   245,   655,   
-    333,   76,    42,    1447,  106,   140,   74,    76,    85,    34,    
-    149,   807,   333,   108,   1159,  172,   42,    268,   333,   149,   
-    76,    42,    1543,  106,   300,   74,    135,   149,   333,   1383,  
-    44,    42,    44,    74,    204,   42,    44,    333,   28135, 3182,  
-    149,   34279, 18215, 2215,  39,    1482,  140,   422,   71,    7898,  
-    1274,  1946,  74,    108,   122,   202,   258,   268,   90,    236,   
-    986,   140,   1562,  2138,  108,   58,    2810,  591,   841,   837,   
-    841,   229,   581,   841,   837,   41,    73,    41,    73,    137,   
-    265,   133,   37,    229,   357,   841,   837,   73,    137,   265,   
-    233,   837,   73,    137,   169,   41,    233,   837,   841,   837,   
-    841,   837,   841,   837,   841,   837,   841,   837,   841,   901,   
-    809,   57,    805,   57,    197,   809,   57,    805,   57,    197,   
-    809,   57,    805,   57,    197,   809,   57,    805,   57,    197,   
-    809,   57,    805,   57,    197,   94,    1613,  135,   871,   71,    
-    39,    39,    327,   135,   39,    39,    39,    39,    39,    39,    
-    103,   71,    39,    39,    39,    39,    39,    39,    71,    39,    
-    135,   231,   135,   135,   39,    327,   551,   103,   167,   551,   
-    89,    1434,  3226,  506,   474,   506,   506,   367,   1018,  1946,  
-    1402,  954,   1402,  314,   90,    1082,  218,   2266,  666,   1210,  
-    186,   570,   2042,  58,    5850,  154,   2010,  154,   794,   2266,  
-    378,   2266,  3738,  39,    39,    39,    39,    39,    39,    17351, 
-    34,    3074,  7692,  63,    63,    
-  };
-
-static int tdsqlite3Fts5UnicodeCategory(u32 iCode) { 
-  int iRes = -1;
-  int iHi;
-  int iLo;
-  int ret;
-  u16 iKey;
-
-  if( iCode>=(1<<20) ){
-    return 0;
-  }
-  iLo = aFts5UnicodeBlock[(iCode>>16)];
-  iHi = aFts5UnicodeBlock[1+(iCode>>16)];
-  iKey = (iCode & 0xFFFF);
-  while( iHi>iLo ){
-    int iTest = (iHi + iLo) / 2;
-    assert( iTest>=iLo && iTest<iHi );
-    if( iKey>=aFts5UnicodeMap[iTest] ){
-      iRes = iTest;
-      iLo = iTest+1;
-    }else{
-      iHi = iTest;
-    }
-  }
-
-  if( iRes<0 ) return 0;
-  if( iKey>=(aFts5UnicodeMap[iRes]+(aFts5UnicodeData[iRes]>>5)) ) return 0;
-  ret = aFts5UnicodeData[iRes] & 0x1F;
-  if( ret!=30 ) return ret;
-  return ((iKey - aFts5UnicodeMap[iRes]) & 0x01) ? 5 : 9;
-}
-
-static void tdsqlite3Fts5UnicodeAscii(u8 *aArray, u8 *aAscii){
-  int i = 0;
-  int iTbl = 0;
-  while( i<128 ){
-    int bToken = aArray[ aFts5UnicodeData[iTbl] & 0x1F ];
-    int n = (aFts5UnicodeData[iTbl] >> 5) + i;
-    for(; i<128 && i<n; i++){
-      aAscii[i] = (u8)bToken;
-    }
-    iTbl++;
-  }
-}
-
-/*
-** 2015 May 30
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** Routines for varint serialization and deserialization.
-*/
-
-
-/* #include "fts5Int.h" */
-
-/*
-** This is a copy of the tdsqlite3GetVarint32() routine from the SQLite core.
-** Except, this version does handle the single byte case that the core
-** version depends on being handled before its function is called.
-*/
-static int tdsqlite3Fts5GetVarint32(const unsigned char *p, u32 *v){
-  u32 a,b;
-
-  /* The 1-byte case. Overwhelmingly the most common. */
-  a = *p;
-  /* a: p0 (unmasked) */
-  if (!(a&0x80))
-  {
-    /* Values between 0 and 127 */
-    *v = a;
-    return 1;
-  }
-
-  /* The 2-byte case */
-  p++;
-  b = *p;
-  /* b: p1 (unmasked) */
-  if (!(b&0x80))
-  {
-    /* Values between 128 and 16383 */
-    a &= 0x7f;
-    a = a<<7;
-    *v = a | b;
-    return 2;
-  }
-
-  /* The 3-byte case */
-  p++;
-  a = a<<14;
-  a |= *p;
-  /* a: p0<<14 | p2 (unmasked) */
-  if (!(a&0x80))
-  {
-    /* Values between 16384 and 2097151 */
-    a &= (0x7f<<14)|(0x7f);
-    b &= 0x7f;
-    b = b<<7;
-    *v = a | b;
-    return 3;
-  }
-
-  /* A 32-bit varint is used to store size information in btrees.
-  ** Objects are rarely larger than 2MiB limit of a 3-byte varint.
-  ** A 3-byte varint is sufficient, for example, to record the size
-  ** of a 1048569-byte BLOB or string.
-  **
-  ** We only unroll the first 1-, 2-, and 3- byte cases.  The very
-  ** rare larger cases can be handled by the slower 64-bit varint
-  ** routine.
-  */
-  {
-    u64 v64;
-    u8 n;
-    p -= 2;
-    n = tdsqlite3Fts5GetVarint(p, &v64);
-    *v = ((u32)v64) & 0x7FFFFFFF;
-    assert( n>3 && n<=9 );
-    return n;
-  }
-}
-
-
-/*
-** Bitmasks used by tdsqlite3GetVarint().  These precomputed constants
-** are defined here rather than simply putting the constant expressions
-** inline in order to work around bugs in the RVT compiler.
-**
-** SLOT_2_0     A mask for  (0x7f<<14) | 0x7f
-**
-** SLOT_4_2_0   A mask for  (0x7f<<28) | SLOT_2_0
-*/
-#define SLOT_2_0     0x001fc07f
-#define SLOT_4_2_0   0xf01fc07f
-
-/*
-** Read a 64-bit variable-length integer from memory starting at p[0].
-** Return the number of bytes read.  The value is stored in *v.
-*/
-static u8 tdsqlite3Fts5GetVarint(const unsigned char *p, u64 *v){
-  u32 a,b,s;
-
-  a = *p;
-  /* a: p0 (unmasked) */
-  if (!(a&0x80))
-  {
-    *v = a;
-    return 1;
-  }
-
-  p++;
-  b = *p;
-  /* b: p1 (unmasked) */
-  if (!(b&0x80))
-  {
-    a &= 0x7f;
-    a = a<<7;
-    a |= b;
-    *v = a;
-    return 2;
-  }
-
-  /* Verify that constants are precomputed correctly */
-  assert( SLOT_2_0 == ((0x7f<<14) | (0x7f)) );
-  assert( SLOT_4_2_0 == ((0xfU<<28) | (0x7f<<14) | (0x7f)) );
-
-  p++;
-  a = a<<14;
-  a |= *p;
-  /* a: p0<<14 | p2 (unmasked) */
-  if (!(a&0x80))
-  {
-    a &= SLOT_2_0;
-    b &= 0x7f;
-    b = b<<7;
-    a |= b;
-    *v = a;
-    return 3;
-  }
-
-  /* CSE1 from below */
-  a &= SLOT_2_0;
-  p++;
-  b = b<<14;
-  b |= *p;
-  /* b: p1<<14 | p3 (unmasked) */
-  if (!(b&0x80))
-  {
-    b &= SLOT_2_0;
-    /* moved CSE1 up */
-    /* a &= (0x7f<<14)|(0x7f); */
-    a = a<<7;
-    a |= b;
-    *v = a;
-    return 4;
-  }
-
-  /* a: p0<<14 | p2 (masked) */
-  /* b: p1<<14 | p3 (unmasked) */
-  /* 1:save off p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
-  /* moved CSE1 up */
-  /* a &= (0x7f<<14)|(0x7f); */
-  b &= SLOT_2_0;
-  s = a;
-  /* s: p0<<14 | p2 (masked) */
-
-  p++;
-  a = a<<14;
-  a |= *p;
-  /* a: p0<<28 | p2<<14 | p4 (unmasked) */
-  if (!(a&0x80))
-  {
-    /* we can skip these cause they were (effectively) done above in calc'ing s */
-    /* a &= (0x7f<<28)|(0x7f<<14)|(0x7f); */
-    /* b &= (0x7f<<14)|(0x7f); */
-    b = b<<7;
-    a |= b;
-    s = s>>18;
-    *v = ((u64)s)<<32 | a;
-    return 5;
-  }
-
-  /* 2:save off p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
-  s = s<<7;
-  s |= b;
-  /* s: p0<<21 | p1<<14 | p2<<7 | p3 (masked) */
-
-  p++;
-  b = b<<14;
-  b |= *p;
-  /* b: p1<<28 | p3<<14 | p5 (unmasked) */
-  if (!(b&0x80))
-  {
-    /* we can skip this cause it was (effectively) done above in calc'ing s */
-    /* b &= (0x7f<<28)|(0x7f<<14)|(0x7f); */
-    a &= SLOT_2_0;
-    a = a<<7;
-    a |= b;
-    s = s>>18;
-    *v = ((u64)s)<<32 | a;
-    return 6;
-  }
-
-  p++;
-  a = a<<14;
-  a |= *p;
-  /* a: p2<<28 | p4<<14 | p6 (unmasked) */
-  if (!(a&0x80))
-  {
-    a &= SLOT_4_2_0;
-    b &= SLOT_2_0;
-    b = b<<7;
-    a |= b;
-    s = s>>11;
-    *v = ((u64)s)<<32 | a;
-    return 7;
-  }
-
-  /* CSE2 from below */
-  a &= SLOT_2_0;
-  p++;
-  b = b<<14;
-  b |= *p;
-  /* b: p3<<28 | p5<<14 | p7 (unmasked) */
-  if (!(b&0x80))
-  {
-    b &= SLOT_4_2_0;
-    /* moved CSE2 up */
-    /* a &= (0x7f<<14)|(0x7f); */
-    a = a<<7;
-    a |= b;
-    s = s>>4;
-    *v = ((u64)s)<<32 | a;
-    return 8;
-  }
-
-  p++;
-  a = a<<15;
-  a |= *p;
-  /* a: p4<<29 | p6<<15 | p8 (unmasked) */
-
-  /* moved CSE2 up */
-  /* a &= (0x7f<<29)|(0x7f<<15)|(0xff); */
-  b &= SLOT_2_0;
-  b = b<<8;
-  a |= b;
-
-  s = s<<4;
-  b = p[-4];
-  b &= 0x7f;
-  b = b>>3;
-  s |= b;
-
-  *v = ((u64)s)<<32 | a;
-
-  return 9;
-}
-
-/*
-** The variable-length integer encoding is as follows:
-**
-** KEY:
-**         A = 0xxxxxxx    7 bits of data and one flag bit
-**         B = 1xxxxxxx    7 bits of data and one flag bit
-**         C = xxxxxxxx    8 bits of data
-**
-**  7 bits - A
-** 14 bits - BA
-** 21 bits - BBA
-** 28 bits - BBBA
-** 35 bits - BBBBA
-** 42 bits - BBBBBA
-** 49 bits - BBBBBBA
-** 56 bits - BBBBBBBA
-** 64 bits - BBBBBBBBC
-*/
-
-#ifdef SQLITE_NOINLINE
-# define FTS5_NOINLINE SQLITE_NOINLINE
-#else
-# define FTS5_NOINLINE
-#endif
-
-/*
-** Write a 64-bit variable-length integer to memory starting at p[0].
-** The length of data write will be between 1 and 9 bytes.  The number
-** of bytes written is returned.
-**
-** A variable-length integer consists of the lower 7 bits of each byte
-** for all bytes that have the 8th bit set and one byte with the 8th
-** bit clear.  Except, if we get to the 9th byte, it stores the full
-** 8 bits and is the last byte.
-*/
-static int FTS5_NOINLINE fts5PutVarint64(unsigned char *p, u64 v){
-  int i, j, n;
-  u8 buf[10];
-  if( v & (((u64)0xff000000)<<32) ){
-    p[8] = (u8)v;
-    v >>= 8;
-    for(i=7; i>=0; i--){
-      p[i] = (u8)((v & 0x7f) | 0x80);
-      v >>= 7;
-    }
-    return 9;
-  }    
-  n = 0;
-  do{
-    buf[n++] = (u8)((v & 0x7f) | 0x80);
-    v >>= 7;
-  }while( v!=0 );
-  buf[0] &= 0x7f;
-  assert( n<=9 );
-  for(i=0, j=n-1; j>=0; j--, i++){
-    p[i] = buf[j];
-  }
-  return n;
-}
-
-static int tdsqlite3Fts5PutVarint(unsigned char *p, u64 v){
-  if( v<=0x7f ){
-    p[0] = v&0x7f;
-    return 1;
-  }
-  if( v<=0x3fff ){
-    p[0] = ((v>>7)&0x7f)|0x80;
-    p[1] = v&0x7f;
-    return 2;
-  }
-  return fts5PutVarint64(p,v);
-}
-
-
-static int tdsqlite3Fts5GetVarintLen(u32 iVal){
-#if 0
-  if( iVal<(1 << 7 ) ) return 1;
-#endif
-  assert( iVal>=(1 << 7) );
-  if( iVal<(1 << 14) ) return 2;
-  if( iVal<(1 << 21) ) return 3;
-  if( iVal<(1 << 28) ) return 4;
-  return 5;
-}
-
-/*
-** 2015 May 08
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This is an SQLite virtual table module implementing direct access to an
-** existing FTS5 index. The module may create several different types of 
-** tables:
-**
-** col:
-**     CREATE TABLE vocab(term, col, doc, cnt, PRIMARY KEY(term, col));
-**
-**   One row for each term/column combination. The value of $doc is set to
-**   the number of fts5 rows that contain at least one instance of term
-**   $term within column $col. Field $cnt is set to the total number of 
-**   instances of term $term in column $col (in any row of the fts5 table). 
-**
-** row:
-**     CREATE TABLE vocab(term, doc, cnt, PRIMARY KEY(term));
-**
-**   One row for each term in the database. The value of $doc is set to
-**   the number of fts5 rows that contain at least one instance of term
-**   $term. Field $cnt is set to the total number of instances of term 
-**   $term in the database.
-**
-** instance:
-**     CREATE TABLE vocab(term, doc, col, offset, PRIMARY KEY(<all-fields>));
-**
-**   One row for each term instance in the database. 
-*/
-
-
-/* #include "fts5Int.h" */
-
-
-typedef struct Fts5VocabTable Fts5VocabTable;
-typedef struct Fts5VocabCursor Fts5VocabCursor;
-
-struct Fts5VocabTable {
-  tdsqlite3_vtab base;
-  char *zFts5Tbl;                 /* Name of fts5 table */
-  char *zFts5Db;                  /* Db containing fts5 table */
-  tdsqlite3 *db;                    /* Database handle */
-  Fts5Global *pGlobal;            /* FTS5 global object for this database */
-  int eType;                      /* FTS5_VOCAB_COL, ROW or INSTANCE */
-};
-
-struct Fts5VocabCursor {
-  tdsqlite3_vtab_cursor base;
-  tdsqlite3_stmt *pStmt;            /* Statement holding lock on pIndex */
-  Fts5Table *pFts5;               /* Associated FTS5 table */
-
-  int bEof;                       /* True if this cursor is at EOF */
-  Fts5IndexIter *pIter;           /* Term/rowid iterator object */
-
-  int nLeTerm;                    /* Size of zLeTerm in bytes */
-  char *zLeTerm;                  /* (term <= $zLeTerm) paramater, or NULL */
-
-  /* These are used by 'col' tables only */
-  int iCol;
-  i64 *aCnt;
-  i64 *aDoc;
-
-  /* Output values used by all tables. */
-  i64 rowid;                      /* This table's current rowid value */
-  Fts5Buffer term;                /* Current value of 'term' column */
-
-  /* Output values Used by 'instance' tables only */
-  i64 iInstPos;
-  int iInstOff;
-};
-
-#define FTS5_VOCAB_COL      0
-#define FTS5_VOCAB_ROW      1
-#define FTS5_VOCAB_INSTANCE 2
-
-#define FTS5_VOCAB_COL_SCHEMA  "term, col, doc, cnt"
-#define FTS5_VOCAB_ROW_SCHEMA  "term, doc, cnt"
-#define FTS5_VOCAB_INST_SCHEMA "term, doc, col, offset"
-
-/*
-** Bits for the mask used as the idxNum value by xBestIndex/xFilter.
-*/
-#define FTS5_VOCAB_TERM_EQ 0x01
-#define FTS5_VOCAB_TERM_GE 0x02
-#define FTS5_VOCAB_TERM_LE 0x04
-
-
-/*
-** Translate a string containing an fts5vocab table type to an 
-** FTS5_VOCAB_XXX constant. If successful, set *peType to the output
-** value and return SQLITE_OK. Otherwise, set *pzErr to an error message
-** and return SQLITE_ERROR.
-*/
-static int fts5VocabTableType(const char *zType, char **pzErr, int *peType){
-  int rc = SQLITE_OK;
-  char *zCopy = tdsqlite3Fts5Strndup(&rc, zType, -1);
-  if( rc==SQLITE_OK ){
-    tdsqlite3Fts5Dequote(zCopy);
-    if( tdsqlite3_stricmp(zCopy, "col")==0 ){
-      *peType = FTS5_VOCAB_COL;
-    }else
-
-    if( tdsqlite3_stricmp(zCopy, "row")==0 ){
-      *peType = FTS5_VOCAB_ROW;
-    }else
-    if( tdsqlite3_stricmp(zCopy, "instance")==0 ){
-      *peType = FTS5_VOCAB_INSTANCE;
-    }else
-    {
-      *pzErr = tdsqlite3_mprintf("fts5vocab: unknown table type: %Q", zCopy);
-      rc = SQLITE_ERROR;
-    }
-    tdsqlite3_free(zCopy);
-  }
-
-  return rc;
-}
-
-
-/*
-** The xDisconnect() virtual table method.
-*/
-static int fts5VocabDisconnectMethod(tdsqlite3_vtab *pVtab){
-  Fts5VocabTable *pTab = (Fts5VocabTable*)pVtab;
-  tdsqlite3_free(pTab);
-  return SQLITE_OK;
-}
-
-/*
-** The xDestroy() virtual table method.
-*/
-static int fts5VocabDestroyMethod(tdsqlite3_vtab *pVtab){
-  Fts5VocabTable *pTab = (Fts5VocabTable*)pVtab;
-  tdsqlite3_free(pTab);
-  return SQLITE_OK;
-}
-
-/*
-** This function is the implementation of both the xConnect and xCreate
-** methods of the FTS3 virtual table.
-**
-** The argv[] array contains the following:
-**
-**   argv[0]   -> module name  ("fts5vocab")
-**   argv[1]   -> database name
-**   argv[2]   -> table name
-**
-** then:
-**
-**   argv[3]   -> name of fts5 table
-**   argv[4]   -> type of fts5vocab table
-**
-** or, for tables in the TEMP schema only.
-**
-**   argv[3]   -> name of fts5 tables database
-**   argv[4]   -> name of fts5 table
-**   argv[5]   -> type of fts5vocab table
-*/
-static int fts5VocabInitVtab(
-  tdsqlite3 *db,                    /* The SQLite database connection */
-  void *pAux,                     /* Pointer to Fts5Global object */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVTab,          /* Write the resulting vtab structure here */
-  char **pzErr                    /* Write any error message here */
-){
-  const char *azSchema[] = { 
-    "CREATE TABlE vocab(" FTS5_VOCAB_COL_SCHEMA  ")", 
-    "CREATE TABlE vocab(" FTS5_VOCAB_ROW_SCHEMA  ")",
-    "CREATE TABlE vocab(" FTS5_VOCAB_INST_SCHEMA ")"
-  };
-
-  Fts5VocabTable *pRet = 0;
-  int rc = SQLITE_OK;             /* Return code */
-  int bDb;
-
-  bDb = (argc==6 && strlen(argv[1])==4 && memcmp("temp", argv[1], 4)==0);
-
-  if( argc!=5 && bDb==0 ){
-    *pzErr = tdsqlite3_mprintf("wrong number of vtable arguments");
-    rc = SQLITE_ERROR;
-  }else{
-    int nByte;                      /* Bytes of space to allocate */
-    const char *zDb = bDb ? argv[3] : argv[1];
-    const char *zTab = bDb ? argv[4] : argv[3];
-    const char *zType = bDb ? argv[5] : argv[4];
-    int nDb = (int)strlen(zDb)+1; 
-    int nTab = (int)strlen(zTab)+1;
-    int eType = 0;
-    
-    rc = fts5VocabTableType(zType, pzErr, &eType);
-    if( rc==SQLITE_OK ){
-      assert( eType>=0 && eType<ArraySize(azSchema) );
-      rc = tdsqlite3_declare_vtab(db, azSchema[eType]);
-    }
-
-    nByte = sizeof(Fts5VocabTable) + nDb + nTab;
-    pRet = tdsqlite3Fts5MallocZero(&rc, nByte);
-    if( pRet ){
-      pRet->pGlobal = (Fts5Global*)pAux;
-      pRet->eType = eType;
-      pRet->db = db;
-      pRet->zFts5Tbl = (char*)&pRet[1];
-      pRet->zFts5Db = &pRet->zFts5Tbl[nTab];
-      memcpy(pRet->zFts5Tbl, zTab, nTab);
-      memcpy(pRet->zFts5Db, zDb, nDb);
-      tdsqlite3Fts5Dequote(pRet->zFts5Tbl);
-      tdsqlite3Fts5Dequote(pRet->zFts5Db);
-    }
-  }
-
-  *ppVTab = (tdsqlite3_vtab*)pRet;
-  return rc;
-}
-
-
-/*
-** The xConnect() and xCreate() methods for the virtual table. All the
-** work is done in function fts5VocabInitVtab().
-*/
-static int fts5VocabConnectMethod(
-  tdsqlite3 *db,                    /* Database connection */
-  void *pAux,                     /* Pointer to tokenizer hash table */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVtab,          /* OUT: New tdsqlite3_vtab object */
-  char **pzErr                    /* OUT: tdsqlite3_malloc'd error message */
-){
-  return fts5VocabInitVtab(db, pAux, argc, argv, ppVtab, pzErr);
-}
-static int fts5VocabCreateMethod(
-  tdsqlite3 *db,                    /* Database connection */
-  void *pAux,                     /* Pointer to tokenizer hash table */
-  int argc,                       /* Number of elements in argv array */
-  const char * const *argv,       /* xCreate/xConnect argument array */
-  tdsqlite3_vtab **ppVtab,          /* OUT: New tdsqlite3_vtab object */
-  char **pzErr                    /* OUT: tdsqlite3_malloc'd error message */
-){
-  return fts5VocabInitVtab(db, pAux, argc, argv, ppVtab, pzErr);
-}
-
-/* 
-** Implementation of the xBestIndex method.
-**
-** Only constraints of the form:
-**
-**     term <= ?
-**     term == ?
-**     term >= ?
-**
-** are interpreted. Less-than and less-than-or-equal are treated 
-** identically, as are greater-than and greater-than-or-equal.
-*/
-static int fts5VocabBestIndexMethod(
-  tdsqlite3_vtab *pUnused,
-  tdsqlite3_index_info *pInfo
-){
-  int i;
-  int iTermEq = -1;
-  int iTermGe = -1;
-  int iTermLe = -1;
-  int idxNum = 0;
-  int nArg = 0;
-
-  UNUSED_PARAM(pUnused);
-
-  for(i=0; i<pInfo->nConstraint; i++){
-    struct tdsqlite3_index_constraint *p = &pInfo->aConstraint[i];
-    if( p->usable==0 ) continue;
-    if( p->iColumn==0 ){          /* term column */
-      if( p->op==SQLITE_INDEX_CONSTRAINT_EQ ) iTermEq = i;
-      if( p->op==SQLITE_INDEX_CONSTRAINT_LE ) iTermLe = i;
-      if( p->op==SQLITE_INDEX_CONSTRAINT_LT ) iTermLe = i;
-      if( p->op==SQLITE_INDEX_CONSTRAINT_GE ) iTermGe = i;
-      if( p->op==SQLITE_INDEX_CONSTRAINT_GT ) iTermGe = i;
-    }
-  }
-
-  if( iTermEq>=0 ){
-    idxNum |= FTS5_VOCAB_TERM_EQ;
-    pInfo->aConstraintUsage[iTermEq].argvIndex = ++nArg;
-    pInfo->estimatedCost = 100;
-  }else{
-    pInfo->estimatedCost = 1000000;
-    if( iTermGe>=0 ){
-      idxNum |= FTS5_VOCAB_TERM_GE;
-      pInfo->aConstraintUsage[iTermGe].argvIndex = ++nArg;
-      pInfo->estimatedCost = pInfo->estimatedCost / 2;
-    }
-    if( iTermLe>=0 ){
-      idxNum |= FTS5_VOCAB_TERM_LE;
-      pInfo->aConstraintUsage[iTermLe].argvIndex = ++nArg;
-      pInfo->estimatedCost = pInfo->estimatedCost / 2;
-    }
-  }
-
-  /* This virtual table always delivers results in ascending order of
-  ** the "term" column (column 0). So if the user has requested this
-  ** specifically - "ORDER BY term" or "ORDER BY term ASC" - set the
-  ** tdsqlite3_index_info.orderByConsumed flag to tell the core the results
-  ** are already in sorted order.  */
-  if( pInfo->nOrderBy==1 
-   && pInfo->aOrderBy[0].iColumn==0 
-   && pInfo->aOrderBy[0].desc==0
-  ){
-    pInfo->orderByConsumed = 1;
-  }
-
-  pInfo->idxNum = idxNum;
-  return SQLITE_OK;
-}
-
-/*
-** Implementation of xOpen method.
-*/
-static int fts5VocabOpenMethod(
-  tdsqlite3_vtab *pVTab, 
-  tdsqlite3_vtab_cursor **ppCsr
-){
-  Fts5VocabTable *pTab = (Fts5VocabTable*)pVTab;
-  Fts5Table *pFts5 = 0;
-  Fts5VocabCursor *pCsr = 0;
-  int rc = SQLITE_OK;
-  tdsqlite3_stmt *pStmt = 0;
-  char *zSql = 0;
-
-  zSql = tdsqlite3Fts5Mprintf(&rc,
-      "SELECT t.%Q FROM %Q.%Q AS t WHERE t.%Q MATCH '*id'",
-      pTab->zFts5Tbl, pTab->zFts5Db, pTab->zFts5Tbl, pTab->zFts5Tbl
-  );
-  if( zSql ){
-    rc = tdsqlite3_prepare_v2(pTab->db, zSql, -1, &pStmt, 0);
-  }
-  tdsqlite3_free(zSql);
-  assert( rc==SQLITE_OK || pStmt==0 );
-  if( rc==SQLITE_ERROR ) rc = SQLITE_OK;
-
-  if( pStmt && tdsqlite3_step(pStmt)==SQLITE_ROW ){
-    i64 iId = tdsqlite3_column_int64(pStmt, 0);
-    pFts5 = tdsqlite3Fts5TableFromCsrid(pTab->pGlobal, iId);
-  }
-
-  if( rc==SQLITE_OK ){
-    if( pFts5==0 ){
-      rc = tdsqlite3_finalize(pStmt);
-      pStmt = 0;
-      if( rc==SQLITE_OK ){
-        pVTab->zErrMsg = tdsqlite3_mprintf(
-            "no such fts5 table: %s.%s", pTab->zFts5Db, pTab->zFts5Tbl
-            );
-        rc = SQLITE_ERROR;
-      }
-    }else{
-      rc = tdsqlite3Fts5FlushToDisk(pFts5);
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    int nByte = pFts5->pConfig->nCol * sizeof(i64)*2 + sizeof(Fts5VocabCursor);
-    pCsr = (Fts5VocabCursor*)tdsqlite3Fts5MallocZero(&rc, nByte);
-  }
-
-  if( pCsr ){
-    pCsr->pFts5 = pFts5;
-    pCsr->pStmt = pStmt;
-    pCsr->aCnt = (i64*)&pCsr[1];
-    pCsr->aDoc = &pCsr->aCnt[pFts5->pConfig->nCol];
-  }else{
-    tdsqlite3_finalize(pStmt);
-  }
-
-  *ppCsr = (tdsqlite3_vtab_cursor*)pCsr;
-  return rc;
-}
-
-static void fts5VocabResetCursor(Fts5VocabCursor *pCsr){
-  pCsr->rowid = 0;
-  tdsqlite3Fts5IterClose(pCsr->pIter);
-  pCsr->pIter = 0;
-  tdsqlite3_free(pCsr->zLeTerm);
-  pCsr->nLeTerm = -1;
-  pCsr->zLeTerm = 0;
-  pCsr->bEof = 0;
-}
-
-/*
-** Close the cursor.  For additional information see the documentation
-** on the xClose method of the virtual table interface.
-*/
-static int fts5VocabCloseMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
-  fts5VocabResetCursor(pCsr);
-  tdsqlite3Fts5BufferFree(&pCsr->term);
-  tdsqlite3_finalize(pCsr->pStmt);
-  tdsqlite3_free(pCsr);
-  return SQLITE_OK;
-}
-
-static int fts5VocabInstanceNewTerm(Fts5VocabCursor *pCsr){
-  int rc = SQLITE_OK;
-  
-  if( tdsqlite3Fts5IterEof(pCsr->pIter) ){
-    pCsr->bEof = 1;
-  }else{
-    const char *zTerm;
-    int nTerm;
-    zTerm = tdsqlite3Fts5IterTerm(pCsr->pIter, &nTerm);
-    if( pCsr->nLeTerm>=0 ){
-      int nCmp = MIN(nTerm, pCsr->nLeTerm);
-      int bCmp = memcmp(pCsr->zLeTerm, zTerm, nCmp);
-      if( bCmp<0 || (bCmp==0 && pCsr->nLeTerm<nTerm) ){
-        pCsr->bEof = 1;
-      }
-    }
-
-    tdsqlite3Fts5BufferSet(&rc, &pCsr->term, nTerm, (const u8*)zTerm);
-  }
-  return rc;
-}
-
-static int fts5VocabInstanceNext(Fts5VocabCursor *pCsr){
-  int eDetail = pCsr->pFts5->pConfig->eDetail;
-  int rc = SQLITE_OK;
-  Fts5IndexIter *pIter = pCsr->pIter;
-  i64 *pp = &pCsr->iInstPos;
-  int *po = &pCsr->iInstOff;
-  
-  assert( tdsqlite3Fts5IterEof(pIter)==0 );
-  assert( pCsr->bEof==0 );
-  while( eDetail==FTS5_DETAIL_NONE
-      || tdsqlite3Fts5PoslistNext64(pIter->pData, pIter->nData, po, pp) 
-  ){
-    pCsr->iInstPos = 0;
-    pCsr->iInstOff = 0;
-
-    rc = tdsqlite3Fts5IterNextScan(pCsr->pIter);
-    if( rc==SQLITE_OK ){
-      rc = fts5VocabInstanceNewTerm(pCsr);
-      if( pCsr->bEof || eDetail==FTS5_DETAIL_NONE ) break;
-    }
-    if( rc ){
-      pCsr->bEof = 1;
-      break;
-    }
-  }
-
-  return rc;
-}
-
-/*
-** Advance the cursor to the next row in the table.
-*/
-static int fts5VocabNextMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
-  Fts5VocabTable *pTab = (Fts5VocabTable*)pCursor->pVtab;
-  int rc = SQLITE_OK;
-  int nCol = pCsr->pFts5->pConfig->nCol;
-
-  pCsr->rowid++;
-
-  if( pTab->eType==FTS5_VOCAB_INSTANCE ){
-    return fts5VocabInstanceNext(pCsr);
-  }
-
-  if( pTab->eType==FTS5_VOCAB_COL ){
-    for(pCsr->iCol++; pCsr->iCol<nCol; pCsr->iCol++){
-      if( pCsr->aDoc[pCsr->iCol] ) break;
-    }
-  }
-
-  if( pTab->eType!=FTS5_VOCAB_COL || pCsr->iCol>=nCol ){
-    if( tdsqlite3Fts5IterEof(pCsr->pIter) ){
-      pCsr->bEof = 1;
-    }else{
-      const char *zTerm;
-      int nTerm;
-
-      zTerm = tdsqlite3Fts5IterTerm(pCsr->pIter, &nTerm);
-      assert( nTerm>=0 );
-      if( pCsr->nLeTerm>=0 ){
-        int nCmp = MIN(nTerm, pCsr->nLeTerm);
-        int bCmp = memcmp(pCsr->zLeTerm, zTerm, nCmp);
-        if( bCmp<0 || (bCmp==0 && pCsr->nLeTerm<nTerm) ){
-          pCsr->bEof = 1;
-          return SQLITE_OK;
-        }
-      }
-
-      tdsqlite3Fts5BufferSet(&rc, &pCsr->term, nTerm, (const u8*)zTerm);
-      memset(pCsr->aCnt, 0, nCol * sizeof(i64));
-      memset(pCsr->aDoc, 0, nCol * sizeof(i64));
-      pCsr->iCol = 0;
-
-      assert( pTab->eType==FTS5_VOCAB_COL || pTab->eType==FTS5_VOCAB_ROW );
-      while( rc==SQLITE_OK ){
-        int eDetail = pCsr->pFts5->pConfig->eDetail;
-        const u8 *pPos; int nPos;   /* Position list */
-        i64 iPos = 0;               /* 64-bit position read from poslist */
-        int iOff = 0;               /* Current offset within position list */
-
-        pPos = pCsr->pIter->pData;
-        nPos = pCsr->pIter->nData;
-
-        switch( pTab->eType ){
-          case FTS5_VOCAB_ROW:
-            if( eDetail==FTS5_DETAIL_FULL ){
-              while( 0==tdsqlite3Fts5PoslistNext64(pPos, nPos, &iOff, &iPos) ){
-                pCsr->aCnt[0]++;
-              }
-            }
-            pCsr->aDoc[0]++;
-            break;
-
-          case FTS5_VOCAB_COL:
-            if( eDetail==FTS5_DETAIL_FULL ){
-              int iCol = -1;
-              while( 0==tdsqlite3Fts5PoslistNext64(pPos, nPos, &iOff, &iPos) ){
-                int ii = FTS5_POS2COLUMN(iPos);
-                if( iCol!=ii ){
-                  if( ii>=nCol ){
-                    rc = FTS5_CORRUPT;
-                    break;
-                  }
-                  pCsr->aDoc[ii]++;
-                  iCol = ii;
-                }
-                pCsr->aCnt[ii]++;
-              }
-            }else if( eDetail==FTS5_DETAIL_COLUMNS ){
-              while( 0==tdsqlite3Fts5PoslistNext64(pPos, nPos, &iOff,&iPos) ){
-                assert_nc( iPos>=0 && iPos<nCol );
-                if( iPos>=nCol ){
-                  rc = FTS5_CORRUPT;
-                  break;
-                }
-                pCsr->aDoc[iPos]++;
-              }
-            }else{
-              assert( eDetail==FTS5_DETAIL_NONE );
-              pCsr->aDoc[0]++;
-            }
-            break;
-
-          default:
-            assert( pTab->eType==FTS5_VOCAB_INSTANCE );
-            break;
-        }
-
-        if( rc==SQLITE_OK ){
-          rc = tdsqlite3Fts5IterNextScan(pCsr->pIter);
-        }
-        if( pTab->eType==FTS5_VOCAB_INSTANCE ) break;
-
-        if( rc==SQLITE_OK ){
-          zTerm = tdsqlite3Fts5IterTerm(pCsr->pIter, &nTerm);
-          if( nTerm!=pCsr->term.n 
-          || (nTerm>0 && memcmp(zTerm, pCsr->term.p, nTerm)) 
-          ){
-            break;
-          }
-          if( tdsqlite3Fts5IterEof(pCsr->pIter) ) break;
-        }
-      }
-    }
-  }
-
-  if( rc==SQLITE_OK && pCsr->bEof==0 && pTab->eType==FTS5_VOCAB_COL ){
-    for(/* noop */; pCsr->iCol<nCol && pCsr->aDoc[pCsr->iCol]==0; pCsr->iCol++);
-    if( pCsr->iCol==nCol ){
-      rc = FTS5_CORRUPT;
-    }
-  }
-  return rc;
-}
-
-/*
-** This is the xFilter implementation for the virtual table.
-*/
-static int fts5VocabFilterMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* The cursor used for this query */
-  int idxNum,                     /* Strategy index */
-  const char *zUnused,            /* Unused */
-  int nUnused,                    /* Number of elements in apVal */
-  tdsqlite3_value **apVal           /* Arguments for the indexing scheme */
-){
-  Fts5VocabTable *pTab = (Fts5VocabTable*)pCursor->pVtab;
-  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
-  int eType = pTab->eType;
-  int rc = SQLITE_OK;
-
-  int iVal = 0;
-  int f = FTS5INDEX_QUERY_SCAN;
-  const char *zTerm = 0;
-  int nTerm = 0;
-
-  tdsqlite3_value *pEq = 0;
-  tdsqlite3_value *pGe = 0;
-  tdsqlite3_value *pLe = 0;
-
-  UNUSED_PARAM2(zUnused, nUnused);
-
-  fts5VocabResetCursor(pCsr);
-  if( idxNum & FTS5_VOCAB_TERM_EQ ) pEq = apVal[iVal++];
-  if( idxNum & FTS5_VOCAB_TERM_GE ) pGe = apVal[iVal++];
-  if( idxNum & FTS5_VOCAB_TERM_LE ) pLe = apVal[iVal++];
-
-  if( pEq ){
-    zTerm = (const char *)tdsqlite3_value_text(pEq);
-    nTerm = tdsqlite3_value_bytes(pEq);
-    f = 0;
-  }else{
-    if( pGe ){
-      zTerm = (const char *)tdsqlite3_value_text(pGe);
-      nTerm = tdsqlite3_value_bytes(pGe);
-    }
-    if( pLe ){
-      const char *zCopy = (const char *)tdsqlite3_value_text(pLe);
-      if( zCopy==0 ) zCopy = "";
-      pCsr->nLeTerm = tdsqlite3_value_bytes(pLe);
-      pCsr->zLeTerm = tdsqlite3_malloc(pCsr->nLeTerm+1);
-      if( pCsr->zLeTerm==0 ){
-        rc = SQLITE_NOMEM;
-      }else{
-        memcpy(pCsr->zLeTerm, zCopy, pCsr->nLeTerm+1);
-      }
-    }
-  }
-
-  if( rc==SQLITE_OK ){
-    Fts5Index *pIndex = pCsr->pFts5->pIndex;
-    rc = tdsqlite3Fts5IndexQuery(pIndex, zTerm, nTerm, f, 0, &pCsr->pIter);
-  }
-  if( rc==SQLITE_OK && eType==FTS5_VOCAB_INSTANCE ){
-    rc = fts5VocabInstanceNewTerm(pCsr);
-  }
-  if( rc==SQLITE_OK && !pCsr->bEof 
-   && (eType!=FTS5_VOCAB_INSTANCE 
-    || pCsr->pFts5->pConfig->eDetail!=FTS5_DETAIL_NONE)
-  ){
-    rc = fts5VocabNextMethod(pCursor);
-  }
-
-  return rc;
-}
-
-/* 
-** This is the xEof method of the virtual table. SQLite calls this 
-** routine to find out if it has reached the end of a result set.
-*/
-static int fts5VocabEofMethod(tdsqlite3_vtab_cursor *pCursor){
-  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
-  return pCsr->bEof;
-}
-
-static int fts5VocabColumnMethod(
-  tdsqlite3_vtab_cursor *pCursor,   /* Cursor to retrieve value from */
-  tdsqlite3_context *pCtx,          /* Context for tdsqlite3_result_xxx() calls */
-  int iCol                        /* Index of column to read value from */
-){
-  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
-  int eDetail = pCsr->pFts5->pConfig->eDetail;
-  int eType = ((Fts5VocabTable*)(pCursor->pVtab))->eType;
-  i64 iVal = 0;
-
-  if( iCol==0 ){
-    tdsqlite3_result_text(
-        pCtx, (const char*)pCsr->term.p, pCsr->term.n, SQLITE_TRANSIENT
-    );
-  }else if( eType==FTS5_VOCAB_COL ){
-    assert( iCol==1 || iCol==2 || iCol==3 );
-    if( iCol==1 ){
-      if( eDetail!=FTS5_DETAIL_NONE ){
-        const char *z = pCsr->pFts5->pConfig->azCol[pCsr->iCol];
-        tdsqlite3_result_text(pCtx, z, -1, SQLITE_STATIC);
-      }
-    }else if( iCol==2 ){
-      iVal = pCsr->aDoc[pCsr->iCol];
-    }else{
-      iVal = pCsr->aCnt[pCsr->iCol];
-    }
-  }else if( eType==FTS5_VOCAB_ROW ){
-    assert( iCol==1 || iCol==2 );
-    if( iCol==1 ){
-      iVal = pCsr->aDoc[0];
-    }else{
-      iVal = pCsr->aCnt[0];
-    }
-  }else{
-    assert( eType==FTS5_VOCAB_INSTANCE );
-    switch( iCol ){
-      case 1:
-        tdsqlite3_result_int64(pCtx, pCsr->pIter->iRowid);
-        break;
-      case 2: {
-        int ii = -1;
-        if( eDetail==FTS5_DETAIL_FULL ){
-          ii = FTS5_POS2COLUMN(pCsr->iInstPos);
-        }else if( eDetail==FTS5_DETAIL_COLUMNS ){
-          ii = (int)pCsr->iInstPos;
-        }
-        if( ii>=0 && ii<pCsr->pFts5->pConfig->nCol ){
-          const char *z = pCsr->pFts5->pConfig->azCol[ii];
-          tdsqlite3_result_text(pCtx, z, -1, SQLITE_STATIC);
-        }
-        break;
-      }
-      default: {
-        assert( iCol==3 );
-        if( eDetail==FTS5_DETAIL_FULL ){
-          int ii = FTS5_POS2OFFSET(pCsr->iInstPos);
-          tdsqlite3_result_int(pCtx, ii);
-        }
-        break;
-      }
-    }
-  }
-
-  if( iVal>0 ) tdsqlite3_result_int64(pCtx, iVal);
-  return SQLITE_OK;
-}
-
-/* 
-** This is the xRowid method. The SQLite core calls this routine to
-** retrieve the rowid for the current row of the result set. The
-** rowid should be written to *pRowid.
-*/
-static int fts5VocabRowidMethod(
-  tdsqlite3_vtab_cursor *pCursor, 
-  sqlite_int64 *pRowid
-){
-  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
-  *pRowid = pCsr->rowid;
-  return SQLITE_OK;
-}
-
-static int tdsqlite3Fts5VocabInit(Fts5Global *pGlobal, tdsqlite3 *db){
-  static const tdsqlite3_module fts5Vocab = {
-    /* iVersion      */ 2,
-    /* xCreate       */ fts5VocabCreateMethod,
-    /* xConnect      */ fts5VocabConnectMethod,
-    /* xBestIndex    */ fts5VocabBestIndexMethod,
-    /* xDisconnect   */ fts5VocabDisconnectMethod,
-    /* xDestroy      */ fts5VocabDestroyMethod,
-    /* xOpen         */ fts5VocabOpenMethod,
-    /* xClose        */ fts5VocabCloseMethod,
-    /* xFilter       */ fts5VocabFilterMethod,
-    /* xNext         */ fts5VocabNextMethod,
-    /* xEof          */ fts5VocabEofMethod,
-    /* xColumn       */ fts5VocabColumnMethod,
-    /* xRowid        */ fts5VocabRowidMethod,
-    /* xUpdate       */ 0,
-    /* xBegin        */ 0,
-    /* xSync         */ 0,
-    /* xCommit       */ 0,
-    /* xRollback     */ 0,
-    /* xFindFunction */ 0,
-    /* xRename       */ 0,
-    /* xSavepoint    */ 0,
-    /* xRelease      */ 0,
-    /* xRollbackTo   */ 0,
-    /* xShadowName   */ 0
-  };
-  void *p = (void*)pGlobal;
-
-  return tdsqlite3_create_module_v2(db, "fts5vocab", &fts5Vocab, p, 0);
-}
-
-
-    
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS5) */
-
-/************** End of fts5.c ************************************************/
-/************** Begin file stmt.c ********************************************/
-/*
-** 2017-05-31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file demonstrates an eponymous virtual table that returns information
-** about all prepared statements for the database connection.
-**
-** Usage example:
-**
-**     .load ./stmt
-**     .mode line
-**     .header on
-**     SELECT * FROM stmt;
-*/
-#if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_STMTVTAB)
-#if !defined(SQLITEINT_H)
-/* #include "tdsqlite3ext.h" */
-#endif
-SQLITE_EXTENSION_INIT1
-/* #include <assert.h> */
-/* #include <string.h> */
-
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-
-/* stmt_vtab is a subclass of tdsqlite3_vtab which will
-** serve as the underlying representation of a stmt virtual table
-*/
-typedef struct stmt_vtab stmt_vtab;
-struct stmt_vtab {
-  tdsqlite3_vtab base;  /* Base class - must be first */
-  tdsqlite3 *db;        /* Database connection for this stmt vtab */
-};
-
-/* stmt_cursor is a subclass of tdsqlite3_vtab_cursor which will
-** serve as the underlying representation of a cursor that scans
-** over rows of the result
-*/
-typedef struct stmt_cursor stmt_cursor;
-struct stmt_cursor {
-  tdsqlite3_vtab_cursor base;  /* Base class - must be first */
-  tdsqlite3 *db;               /* Database connection for this cursor */
-  tdsqlite3_stmt *pStmt;       /* Statement cursor is currently pointing at */
-  tdsqlite3_int64 iRowid;      /* The rowid */
-};
-
-/*
-** The stmtConnect() method is invoked to create a new
-** stmt_vtab that describes the stmt virtual table.
-**
-** Think of this routine as the constructor for stmt_vtab objects.
-**
-** All this routine needs to do is:
-**
-**    (1) Allocate the stmt_vtab object and initialize all fields.
-**
-**    (2) Tell SQLite (via the tdsqlite3_declare_vtab() interface) what the
-**        result set of queries against stmt will look like.
-*/
-static int stmtConnect(
-  tdsqlite3 *db,
-  void *pAux,
-  int argc, const char *const*argv,
-  tdsqlite3_vtab **ppVtab,
-  char **pzErr
-){
-  stmt_vtab *pNew;
-  int rc;
-
-/* Column numbers */
-#define STMT_COLUMN_SQL     0   /* SQL for the statement */
-#define STMT_COLUMN_NCOL    1   /* Number of result columns */
-#define STMT_COLUMN_RO      2   /* True if read-only */
-#define STMT_COLUMN_BUSY    3   /* True if currently busy */
-#define STMT_COLUMN_NSCAN   4   /* SQLITE_STMTSTATUS_FULLSCAN_STEP */
-#define STMT_COLUMN_NSORT   5   /* SQLITE_STMTSTATUS_SORT */
-#define STMT_COLUMN_NAIDX   6   /* SQLITE_STMTSTATUS_AUTOINDEX */
-#define STMT_COLUMN_NSTEP   7   /* SQLITE_STMTSTATUS_VM_STEP */
-#define STMT_COLUMN_REPREP  8   /* SQLITE_STMTSTATUS_REPREPARE */
-#define STMT_COLUMN_RUN     9   /* SQLITE_STMTSTATUS_RUN */
-#define STMT_COLUMN_MEM    10   /* SQLITE_STMTSTATUS_MEMUSED */
-
-
-  rc = tdsqlite3_declare_vtab(db,
-     "CREATE TABLE x(sql,ncol,ro,busy,nscan,nsort,naidx,nstep,"
-                    "reprep,run,mem)");
-  if( rc==SQLITE_OK ){
-    pNew = tdsqlite3_malloc( sizeof(*pNew) );
-    *ppVtab = (tdsqlite3_vtab*)pNew;
-    if( pNew==0 ) return SQLITE_NOMEM;
-    memset(pNew, 0, sizeof(*pNew));
-    pNew->db = db;
-  }
-  return rc;
-}
-
-/*
-** This method is the destructor for stmt_cursor objects.
-*/
-static int stmtDisconnect(tdsqlite3_vtab *pVtab){
-  tdsqlite3_free(pVtab);
-  return SQLITE_OK;
-}
-
-/*
-** Constructor for a new stmt_cursor object.
-*/
-static int stmtOpen(tdsqlite3_vtab *p, tdsqlite3_vtab_cursor **ppCursor){
-  stmt_cursor *pCur;
-  pCur = tdsqlite3_malloc( sizeof(*pCur) );
-  if( pCur==0 ) return SQLITE_NOMEM;
-  memset(pCur, 0, sizeof(*pCur));
-  pCur->db = ((stmt_vtab*)p)->db;
-  *ppCursor = &pCur->base;
-  return SQLITE_OK;
-}
-
-/*
-** Destructor for a stmt_cursor.
-*/
-static int stmtClose(tdsqlite3_vtab_cursor *cur){
-  tdsqlite3_free(cur);
-  return SQLITE_OK;
-}
-
-
-/*
-** Advance a stmt_cursor to its next row of output.
-*/
-static int stmtNext(tdsqlite3_vtab_cursor *cur){
-  stmt_cursor *pCur = (stmt_cursor*)cur;
-  pCur->iRowid++;
-  pCur->pStmt = tdsqlite3_next_stmt(pCur->db, pCur->pStmt);
-  return SQLITE_OK;
-}
-
-/*
-** Return values of columns for the row at which the stmt_cursor
-** is currently pointing.
-*/
-static int stmtColumn(
-  tdsqlite3_vtab_cursor *cur,   /* The cursor */
-  tdsqlite3_context *ctx,       /* First argument to tdsqlite3_result_...() */
-  int i                       /* Which column to return */
-){
-  stmt_cursor *pCur = (stmt_cursor*)cur;
-  switch( i ){
-    case STMT_COLUMN_SQL: {
-      tdsqlite3_result_text(ctx, tdsqlite3_sql(pCur->pStmt), -1, SQLITE_TRANSIENT);
-      break;
-    }
-    case STMT_COLUMN_NCOL: {
-      tdsqlite3_result_int(ctx, tdsqlite3_column_count(pCur->pStmt));
-      break;
-    }
-    case STMT_COLUMN_RO: {
-      tdsqlite3_result_int(ctx, tdsqlite3_stmt_readonly(pCur->pStmt));
-      break;
-    }
-    case STMT_COLUMN_BUSY: {
-      tdsqlite3_result_int(ctx, tdsqlite3_stmt_busy(pCur->pStmt));
-      break;
-    }
-    case STMT_COLUMN_MEM: {
-      i = SQLITE_STMTSTATUS_MEMUSED + 
-            STMT_COLUMN_NSCAN - SQLITE_STMTSTATUS_FULLSCAN_STEP;
-      /* Fall thru */
-    }
-    case STMT_COLUMN_NSCAN:
-    case STMT_COLUMN_NSORT:
-    case STMT_COLUMN_NAIDX:
-    case STMT_COLUMN_NSTEP:
-    case STMT_COLUMN_REPREP:
-    case STMT_COLUMN_RUN: {
-      tdsqlite3_result_int(ctx, tdsqlite3_stmt_status(pCur->pStmt,
-                      i-STMT_COLUMN_NSCAN+SQLITE_STMTSTATUS_FULLSCAN_STEP, 0));
-      break;
-    }
-  }
-  return SQLITE_OK;
-}
-
-/*
-** Return the rowid for the current row.  In this implementation, the
-** rowid is the same as the output value.
-*/
-static int stmtRowid(tdsqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
-  stmt_cursor *pCur = (stmt_cursor*)cur;
-  *pRowid = pCur->iRowid;
-  return SQLITE_OK;
-}
-
-/*
-** Return TRUE if the cursor has been moved off of the last
-** row of output.
-*/
-static int stmtEof(tdsqlite3_vtab_cursor *cur){
-  stmt_cursor *pCur = (stmt_cursor*)cur;
-  return pCur->pStmt==0;
-}
-
-/*
-** This method is called to "rewind" the stmt_cursor object back
-** to the first row of output.  This method is always called at least
-** once prior to any call to stmtColumn() or stmtRowid() or 
-** stmtEof().
-*/
-static int stmtFilter(
-  tdsqlite3_vtab_cursor *pVtabCursor, 
-  int idxNum, const char *idxStr,
-  int argc, tdsqlite3_value **argv
-){
-  stmt_cursor *pCur = (stmt_cursor *)pVtabCursor;
-  pCur->pStmt = 0;
-  pCur->iRowid = 0;
-  return stmtNext(pVtabCursor);
-}
-
-/*
-** SQLite will invoke this method one or more times while planning a query
-** that uses the stmt virtual table.  This routine needs to create
-** a query plan for each invocation and compute an estimated cost for that
-** plan.
-*/
-static int stmtBestIndex(
-  tdsqlite3_vtab *tab,
-  tdsqlite3_index_info *pIdxInfo
-){
-  pIdxInfo->estimatedCost = (double)500;
-  pIdxInfo->estimatedRows = 500;
-  return SQLITE_OK;
-}
-
-/*
-** This following structure defines all the methods for the 
-** stmt virtual table.
-*/
-static tdsqlite3_module stmtModule = {
-  0,                         /* iVersion */
-  0,                         /* xCreate */
-  stmtConnect,               /* xConnect */
-  stmtBestIndex,             /* xBestIndex */
-  stmtDisconnect,            /* xDisconnect */
-  0,                         /* xDestroy */
-  stmtOpen,                  /* xOpen - open a cursor */
-  stmtClose,                 /* xClose - close a cursor */
-  stmtFilter,                /* xFilter - configure scan constraints */
-  stmtNext,                  /* xNext - advance a cursor */
-  stmtEof,                   /* xEof - check for end of scan */
-  stmtColumn,                /* xColumn - read data */
-  stmtRowid,                 /* xRowid - read data */
-  0,                         /* xUpdate */
-  0,                         /* xBegin */
-  0,                         /* xSync */
-  0,                         /* xCommit */
-  0,                         /* xRollback */
-  0,                         /* xFindMethod */
-  0,                         /* xRename */
-  0,                         /* xSavepoint */
-  0,                         /* xRelease */
-  0,                         /* xRollbackTo */
-  0,                         /* xShadowName */
-};
-
-#endif /* SQLITE_OMIT_VIRTUALTABLE */
-
-SQLITE_PRIVATE int tdsqlite3StmtVtabInit(tdsqlite3 *db){
-  int rc = SQLITE_OK;
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  rc = tdsqlite3_create_module(db, "sqlite_stmt", &stmtModule, 0);
-#endif
-  return rc;
-}
-
-#ifndef SQLITE_CORE
-#ifdef _WIN32
-__declspec(dllexport)
-#endif
-SQLITE_API int tdsqlite3_stmt_init(
-  tdsqlite3 *db, 
-  char **pzErrMsg, 
-  const tdsqlite3_api_routines *pApi
-){
-  int rc = SQLITE_OK;
-  SQLITE_EXTENSION_INIT2(pApi);
-#ifndef SQLITE_OMIT_VIRTUALTABLE
-  rc = tdsqlite3StmtVtabInit(db);
-#endif
-  return rc;
-}
-#endif /* SQLITE_CORE */
-#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_STMTVTAB) */
-
-/************** End of stmt.c ************************************************/
-#if __LINE__!=232867
-#undef SQLITE_SOURCE_ID
-#define SQLITE_SOURCE_ID      "2020-01-22 18:38:59 f6affdd41608946fcfcea914ece149038a8b25a62bbe719ed2561c649b86alt2"
-#endif
-/* Return the source-id for this library */
-SQLITE_API const char *tdsqlite3_sourceid(void){ return SQLITE_SOURCE_ID; }
-/************************** End of sqlite3.c ******************************/
diff --git a/third-party/td/td/sqlite/sqlite/sqlite3.h b/third-party/td/td/sqlite/sqlite/sqlite3.h
deleted file mode 100644
index 44de2ee213..0000000000
--- a/third-party/td/td/sqlite/sqlite/sqlite3.h
+++ /dev/null
@@ -1,12100 +0,0 @@
-/*
-** 2001-09-15
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the interface that the SQLite library
-** presents to client programs.  If a C-function, structure, datatype,
-** or constant definition does not appear in this file, then it is
-** not a published API of SQLite, is subject to change without
-** notice, and should not be referenced by programs that use SQLite.
-**
-** Some of the definitions that are in this file are marked as
-** "experimental".  Experimental interfaces are normally new
-** features recently added to SQLite.  We do not anticipate changes
-** to experimental interfaces but reserve the right to make minor changes
-** if experience from use "in the wild" suggest such changes are prudent.
-**
-** The official C-language API documentation for SQLite is derived
-** from comments in this file.  This file is the authoritative source
-** on how SQLite interfaces are supposed to operate.
-**
-** The name of this file under configuration management is "sqlite.h.in".
-** The makefile makes some minor changes to this file (such as inserting
-** the version number) and changes its name to "sqlite3.h" as
-** part of the build process.
-*/
-#ifndef SQLITE3_H
-#define SQLITE3_H
-#include <stdarg.h>     /* Needed for the definition of va_list */
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/*
-** Provide the ability to override linkage features of the interface.
-*/
-#ifndef SQLITE_EXTERN
-# define SQLITE_EXTERN extern
-#endif
-#ifndef SQLITE_API
-# define SQLITE_API
-#endif
-#ifndef SQLITE_CDECL
-# define SQLITE_CDECL
-#endif
-#ifndef SQLITE_APICALL
-# define SQLITE_APICALL
-#endif
-#ifndef SQLITE_STDCALL
-# define SQLITE_STDCALL SQLITE_APICALL
-#endif
-#ifndef SQLITE_CALLBACK
-# define SQLITE_CALLBACK
-#endif
-#ifndef SQLITE_SYSAPI
-# define SQLITE_SYSAPI
-#endif
-
-/*
-** These no-op macros are used in front of interfaces to mark those
-** interfaces as either deprecated or experimental.  New applications
-** should not use deprecated interfaces - they are supported for backwards
-** compatibility only.  Application writers should be aware that
-** experimental interfaces are subject to change in point releases.
-**
-** These macros used to resolve to various kinds of compiler magic that
-** would generate warning messages when they were used.  But that
-** compiler magic ended up generating such a flurry of bug reports
-** that we have taken it all out and gone back to using simple
-** noop macros.
-*/
-#define SQLITE_DEPRECATED
-#define SQLITE_EXPERIMENTAL
-
-/*
-** Ensure these symbols were not defined by some previous header file.
-*/
-#ifdef SQLITE_VERSION
-# undef SQLITE_VERSION
-#endif
-#ifdef SQLITE_VERSION_NUMBER
-# undef SQLITE_VERSION_NUMBER
-#endif
-
-/*
-** CAPI3REF: Compile-Time Library Version Numbers
-**
-** ^(The [SQLITE_VERSION] C preprocessor macro in the sqlite3.h header
-** evaluates to a string literal that is the SQLite version in the
-** format "X.Y.Z" where X is the major version number (always 3 for
-** SQLite3) and Y is the minor version number and Z is the release number.)^
-** ^(The [SQLITE_VERSION_NUMBER] C preprocessor macro resolves to an integer
-** with the value (X*1000000 + Y*1000 + Z) where X, Y, and Z are the same
-** numbers used in [SQLITE_VERSION].)^
-** The SQLITE_VERSION_NUMBER for any given release of SQLite will also
-** be larger than the release from which it is derived.  Either Y will
-** be held constant and Z will be incremented or else Y will be incremented
-** and Z will be reset to zero.
-**
-** Since [version 3.6.18] ([dateof:3.6.18]), 
-** SQLite source code has been stored in the
-** <a href="http://www.fossil-scm.org/">Fossil configuration management
-** system</a>.  ^The SQLITE_SOURCE_ID macro evaluates to
-** a string which identifies a particular check-in of SQLite
-** within its configuration management system.  ^The SQLITE_SOURCE_ID
-** string contains the date and time of the check-in (UTC) and a SHA1
-** or SHA3-256 hash of the entire source tree.  If the source code has
-** been edited in any way since it was last checked in, then the last
-** four hexadecimal digits of the hash may be modified.
-**
-** See also: [tdsqlite3_libversion()],
-** [tdsqlite3_libversion_number()], [tdsqlite3_sourceid()],
-** [sqlite_version()] and [sqlite_source_id()].
-*/
-#define SQLITE_VERSION        "3.31.0"
-#define SQLITE_VERSION_NUMBER 3031000
-#define SQLITE_SOURCE_ID      "2020-01-22 18:38:59 f6affdd41608946fcfcea914ece149038a8b25a62bbe719ed2561c649b86alt1"
-
-/*
-** CAPI3REF: Run-Time Library Version Numbers
-** KEYWORDS: tdsqlite3_version tdsqlite3_sourceid
-**
-** These interfaces provide the same information as the [SQLITE_VERSION],
-** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros
-** but are associated with the library instead of the header file.  ^(Cautious
-** programmers might include assert() statements in their application to
-** verify that values returned by these interfaces match the macros in
-** the header, and thus ensure that the application is
-** compiled with matching library and header files.
-**
-** <blockquote><pre>
-** assert( tdsqlite3_libversion_number()==SQLITE_VERSION_NUMBER );
-** assert( strncmp(tdsqlite3_sourceid(),SQLITE_SOURCE_ID,80)==0 );
-** assert( strcmp(tdsqlite3_libversion(),SQLITE_VERSION)==0 );
-** </pre></blockquote>)^
-**
-** ^The tdsqlite3_version[] string constant contains the text of [SQLITE_VERSION]
-** macro.  ^The tdsqlite3_libversion() function returns a pointer to the
-** to the tdsqlite3_version[] string constant.  The tdsqlite3_libversion()
-** function is provided for use in DLLs since DLL users usually do not have
-** direct access to string constants within the DLL.  ^The
-** tdsqlite3_libversion_number() function returns an integer equal to
-** [SQLITE_VERSION_NUMBER].  ^(The tdsqlite3_sourceid() function returns 
-** a pointer to a string constant whose value is the same as the 
-** [SQLITE_SOURCE_ID] C preprocessor macro.  Except if SQLite is built
-** using an edited copy of [the amalgamation], then the last four characters
-** of the hash might be different from [SQLITE_SOURCE_ID].)^
-**
-** See also: [sqlite_version()] and [sqlite_source_id()].
-*/
-SQLITE_API SQLITE_EXTERN const char tdsqlite3_version[];
-SQLITE_API const char *tdsqlite3_libversion(void);
-SQLITE_API const char *tdsqlite3_sourceid(void);
-SQLITE_API int tdsqlite3_libversion_number(void);
-
-/*
-** CAPI3REF: Run-Time Library Compilation Options Diagnostics
-**
-** ^The tdsqlite3_compileoption_used() function returns 0 or 1 
-** indicating whether the specified option was defined at 
-** compile time.  ^The SQLITE_ prefix may be omitted from the 
-** option name passed to tdsqlite3_compileoption_used().  
-**
-** ^The tdsqlite3_compileoption_get() function allows iterating
-** over the list of options that were defined at compile time by
-** returning the N-th compile time option string.  ^If N is out of range,
-** tdsqlite3_compileoption_get() returns a NULL pointer.  ^The SQLITE_ 
-** prefix is omitted from any strings returned by 
-** tdsqlite3_compileoption_get().
-**
-** ^Support for the diagnostic functions tdsqlite3_compileoption_used()
-** and tdsqlite3_compileoption_get() may be omitted by specifying the 
-** [SQLITE_OMIT_COMPILEOPTION_DIAGS] option at compile time.
-**
-** See also: SQL functions [sqlite_compileoption_used()] and
-** [sqlite_compileoption_get()] and the [compile_options pragma].
-*/
-#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
-SQLITE_API int tdsqlite3_compileoption_used(const char *zOptName);
-SQLITE_API const char *tdsqlite3_compileoption_get(int N);
-#else
-# define tdsqlite3_compileoption_used(X) 0
-# define tdsqlite3_compileoption_get(X)  ((void*)0)
-#endif
-
-/*
-** CAPI3REF: Test To See If The Library Is Threadsafe
-**
-** ^The tdsqlite3_threadsafe() function returns zero if and only if
-** SQLite was compiled with mutexing code omitted due to the
-** [SQLITE_THREADSAFE] compile-time option being set to 0.
-**
-** SQLite can be compiled with or without mutexes.  When
-** the [SQLITE_THREADSAFE] C preprocessor macro is 1 or 2, mutexes
-** are enabled and SQLite is threadsafe.  When the
-** [SQLITE_THREADSAFE] macro is 0, 
-** the mutexes are omitted.  Without the mutexes, it is not safe
-** to use SQLite concurrently from more than one thread.
-**
-** Enabling mutexes incurs a measurable performance penalty.
-** So if speed is of utmost importance, it makes sense to disable
-** the mutexes.  But for maximum safety, mutexes should be enabled.
-** ^The default behavior is for mutexes to be enabled.
-**
-** This interface can be used by an application to make sure that the
-** version of SQLite that it is linking against was compiled with
-** the desired setting of the [SQLITE_THREADSAFE] macro.
-**
-** This interface only reports on the compile-time mutex setting
-** of the [SQLITE_THREADSAFE] flag.  If SQLite is compiled with
-** SQLITE_THREADSAFE=1 or =2 then mutexes are enabled by default but
-** can be fully or partially disabled using a call to [tdsqlite3_config()]
-** with the verbs [SQLITE_CONFIG_SINGLETHREAD], [SQLITE_CONFIG_MULTITHREAD],
-** or [SQLITE_CONFIG_SERIALIZED].  ^(The return value of the
-** tdsqlite3_threadsafe() function shows only the compile-time setting of
-** thread safety, not any run-time changes to that setting made by
-** tdsqlite3_config(). In other words, the return value from tdsqlite3_threadsafe()
-** is unchanged by calls to tdsqlite3_config().)^
-**
-** See the [threading mode] documentation for additional information.
-*/
-SQLITE_API int tdsqlite3_threadsafe(void);
-
-/*
-** CAPI3REF: Database Connection Handle
-** KEYWORDS: {database connection} {database connections}
-**
-** Each open SQLite database is represented by a pointer to an instance of
-** the opaque structure named "tdsqlite3".  It is useful to think of an tdsqlite3
-** pointer as an object.  The [tdsqlite3_open()], [tdsqlite3_open16()], and
-** [tdsqlite3_open_v2()] interfaces are its constructors, and [tdsqlite3_close()]
-** and [tdsqlite3_close_v2()] are its destructors.  There are many other
-** interfaces (such as
-** [tdsqlite3_prepare_v2()], [tdsqlite3_create_function()], and
-** [tdsqlite3_busy_timeout()] to name but three) that are methods on an
-** tdsqlite3 object.
-*/
-typedef struct tdsqlite3 tdsqlite3;
-
-/*
-** CAPI3REF: 64-Bit Integer Types
-** KEYWORDS: sqlite_int64 sqlite_uint64
-**
-** Because there is no cross-platform way to specify 64-bit integer types
-** SQLite includes typedefs for 64-bit signed and unsigned integers.
-**
-** The tdsqlite3_int64 and tdsqlite3_uint64 are the preferred type definitions.
-** The sqlite_int64 and sqlite_uint64 types are supported for backwards
-** compatibility only.
-**
-** ^The tdsqlite3_int64 and sqlite_int64 types can store integer values
-** between -9223372036854775808 and +9223372036854775807 inclusive.  ^The
-** tdsqlite3_uint64 and sqlite_uint64 types can store integer values 
-** between 0 and +18446744073709551615 inclusive.
-*/
-#ifdef SQLITE_INT64_TYPE
-  typedef SQLITE_INT64_TYPE sqlite_int64;
-# ifdef SQLITE_UINT64_TYPE
-    typedef SQLITE_UINT64_TYPE sqlite_uint64;
-# else  
-    typedef unsigned SQLITE_INT64_TYPE sqlite_uint64;
-# endif
-#elif defined(_MSC_VER) || defined(__BORLANDC__)
-  typedef __int64 sqlite_int64;
-  typedef unsigned __int64 sqlite_uint64;
-#else
-  typedef long long int sqlite_int64;
-  typedef unsigned long long int sqlite_uint64;
-#endif
-typedef sqlite_int64 tdsqlite3_int64;
-typedef sqlite_uint64 tdsqlite3_uint64;
-
-/*
-** If compiling for a processor that lacks floating point support,
-** substitute integer for floating-point.
-*/
-#ifdef SQLITE_OMIT_FLOATING_POINT
-# define double tdsqlite3_int64
-#endif
-
-/*
-** CAPI3REF: Closing A Database Connection
-** DESTRUCTOR: tdsqlite3
-**
-** ^The tdsqlite3_close() and tdsqlite3_close_v2() routines are destructors
-** for the [tdsqlite3] object.
-** ^Calls to tdsqlite3_close() and tdsqlite3_close_v2() return [SQLITE_OK] if
-** the [tdsqlite3] object is successfully destroyed and all associated
-** resources are deallocated.
-**
-** ^If the database connection is associated with unfinalized prepared
-** statements or unfinished tdsqlite3_backup objects then tdsqlite3_close()
-** will leave the database connection open and return [SQLITE_BUSY].
-** ^If tdsqlite3_close_v2() is called with unfinalized prepared statements
-** and/or unfinished tdsqlite3_backups, then the database connection becomes
-** an unusable "zombie" which will automatically be deallocated when the
-** last prepared statement is finalized or the last tdsqlite3_backup is
-** finished.  The tdsqlite3_close_v2() interface is intended for use with
-** host languages that are garbage collected, and where the order in which
-** destructors are called is arbitrary.
-**
-** Applications should [tdsqlite3_finalize | finalize] all [prepared statements],
-** [tdsqlite3_blob_close | close] all [BLOB handles], and 
-** [tdsqlite3_backup_finish | finish] all [tdsqlite3_backup] objects associated
-** with the [tdsqlite3] object prior to attempting to close the object.  ^If
-** tdsqlite3_close_v2() is called on a [database connection] that still has
-** outstanding [prepared statements], [BLOB handles], and/or
-** [tdsqlite3_backup] objects then it returns [SQLITE_OK] and the deallocation
-** of resources is deferred until all [prepared statements], [BLOB handles],
-** and [tdsqlite3_backup] objects are also destroyed.
-**
-** ^If an [tdsqlite3] object is destroyed while a transaction is open,
-** the transaction is automatically rolled back.
-**
-** The C parameter to [tdsqlite3_close(C)] and [tdsqlite3_close_v2(C)]
-** must be either a NULL
-** pointer or an [tdsqlite3] object pointer obtained
-** from [tdsqlite3_open()], [tdsqlite3_open16()], or
-** [tdsqlite3_open_v2()], and not previously closed.
-** ^Calling tdsqlite3_close() or tdsqlite3_close_v2() with a NULL pointer
-** argument is a harmless no-op.
-*/
-SQLITE_API int tdsqlite3_close(tdsqlite3*);
-SQLITE_API int tdsqlite3_close_v2(tdsqlite3*);
-
-/*
-** The type for a callback function.
-** This is legacy and deprecated.  It is included for historical
-** compatibility and is not documented.
-*/
-typedef int (*tdsqlite3_callback)(void*,int,char**, char**);
-
-/*
-** CAPI3REF: One-Step Query Execution Interface
-** METHOD: tdsqlite3
-**
-** The tdsqlite3_exec() interface is a convenience wrapper around
-** [tdsqlite3_prepare_v2()], [tdsqlite3_step()], and [tdsqlite3_finalize()],
-** that allows an application to run multiple statements of SQL
-** without having to use a lot of C code. 
-**
-** ^The tdsqlite3_exec() interface runs zero or more UTF-8 encoded,
-** semicolon-separate SQL statements passed into its 2nd argument,
-** in the context of the [database connection] passed in as its 1st
-** argument.  ^If the callback function of the 3rd argument to
-** tdsqlite3_exec() is not NULL, then it is invoked for each result row
-** coming out of the evaluated SQL statements.  ^The 4th argument to
-** tdsqlite3_exec() is relayed through to the 1st argument of each
-** callback invocation.  ^If the callback pointer to tdsqlite3_exec()
-** is NULL, then no callback is ever invoked and result rows are
-** ignored.
-**
-** ^If an error occurs while evaluating the SQL statements passed into
-** tdsqlite3_exec(), then execution of the current statement stops and
-** subsequent statements are skipped.  ^If the 5th parameter to tdsqlite3_exec()
-** is not NULL then any error message is written into memory obtained
-** from [tdsqlite3_malloc()] and passed back through the 5th parameter.
-** To avoid memory leaks, the application should invoke [tdsqlite3_free()]
-** on error message strings returned through the 5th parameter of
-** tdsqlite3_exec() after the error message string is no longer needed.
-** ^If the 5th parameter to tdsqlite3_exec() is not NULL and no errors
-** occur, then tdsqlite3_exec() sets the pointer in its 5th parameter to
-** NULL before returning.
-**
-** ^If an tdsqlite3_exec() callback returns non-zero, the tdsqlite3_exec()
-** routine returns SQLITE_ABORT without invoking the callback again and
-** without running any subsequent SQL statements.
-**
-** ^The 2nd argument to the tdsqlite3_exec() callback function is the
-** number of columns in the result.  ^The 3rd argument to the tdsqlite3_exec()
-** callback is an array of pointers to strings obtained as if from
-** [tdsqlite3_column_text()], one for each column.  ^If an element of a
-** result row is NULL then the corresponding string pointer for the
-** tdsqlite3_exec() callback is a NULL pointer.  ^The 4th argument to the
-** tdsqlite3_exec() callback is an array of pointers to strings where each
-** entry represents the name of corresponding result column as obtained
-** from [tdsqlite3_column_name()].
-**
-** ^If the 2nd parameter to tdsqlite3_exec() is a NULL pointer, a pointer
-** to an empty string, or a pointer that contains only whitespace and/or 
-** SQL comments, then no SQL statements are evaluated and the database
-** is not changed.
-**
-** Restrictions:
-**
-** <ul>
-** <li> The application must ensure that the 1st parameter to tdsqlite3_exec()
-**      is a valid and open [database connection].
-** <li> The application must not close the [database connection] specified by
-**      the 1st parameter to tdsqlite3_exec() while tdsqlite3_exec() is running.
-** <li> The application must not modify the SQL statement text passed into
-**      the 2nd parameter of tdsqlite3_exec() while tdsqlite3_exec() is running.
-** </ul>
-*/
-SQLITE_API int tdsqlite3_exec(
-  tdsqlite3*,                                  /* An open database */
-  const char *sql,                           /* SQL to be evaluated */
-  int (*callback)(void*,int,char**,char**),  /* Callback function */
-  void *,                                    /* 1st argument to callback */
-  char **errmsg                              /* Error msg written here */
-);
-
-/*
-** CAPI3REF: Result Codes
-** KEYWORDS: {result code definitions}
-**
-** Many SQLite functions return an integer result code from the set shown
-** here in order to indicate success or failure.
-**
-** New error codes may be added in future versions of SQLite.
-**
-** See also: [extended result code definitions]
-*/
-#define SQLITE_OK           0   /* Successful result */
-/* beginning-of-error-codes */
-#define SQLITE_ERROR        1   /* Generic error */
-#define SQLITE_INTERNAL     2   /* Internal logic error in SQLite */
-#define SQLITE_PERM         3   /* Access permission denied */
-#define SQLITE_ABORT        4   /* Callback routine requested an abort */
-#define SQLITE_BUSY         5   /* The database file is locked */
-#define SQLITE_LOCKED       6   /* A table in the database is locked */
-#define SQLITE_NOMEM        7   /* A malloc() failed */
-#define SQLITE_READONLY     8   /* Attempt to write a readonly database */
-#define SQLITE_INTERRUPT    9   /* Operation terminated by tdsqlite3_interrupt()*/
-#define SQLITE_IOERR       10   /* Some kind of disk I/O error occurred */
-#define SQLITE_CORRUPT     11   /* The database disk image is malformed */
-#define SQLITE_NOTFOUND    12   /* Unknown opcode in tdsqlite3_file_control() */
-#define SQLITE_FULL        13   /* Insertion failed because database is full */
-#define SQLITE_CANTOPEN    14   /* Unable to open the database file */
-#define SQLITE_PROTOCOL    15   /* Database lock protocol error */
-#define SQLITE_EMPTY       16   /* Internal use only */
-#define SQLITE_SCHEMA      17   /* The database schema changed */
-#define SQLITE_TOOBIG      18   /* String or BLOB exceeds size limit */
-#define SQLITE_CONSTRAINT  19   /* Abort due to constraint violation */
-#define SQLITE_MISMATCH    20   /* Data type mismatch */
-#define SQLITE_MISUSE      21   /* Library used incorrectly */
-#define SQLITE_NOLFS       22   /* Uses OS features not supported on host */
-#define SQLITE_AUTH        23   /* Authorization denied */
-#define SQLITE_FORMAT      24   /* Not used */
-#define SQLITE_RANGE       25   /* 2nd parameter to tdsqlite3_bind out of range */
-#define SQLITE_NOTADB      26   /* File opened that is not a database file */
-#define SQLITE_NOTICE      27   /* Notifications from tdsqlite3_log() */
-#define SQLITE_WARNING     28   /* Warnings from tdsqlite3_log() */
-#define SQLITE_ROW         100  /* tdsqlite3_step() has another row ready */
-#define SQLITE_DONE        101  /* tdsqlite3_step() has finished executing */
-/* end-of-error-codes */
-
-/*
-** CAPI3REF: Extended Result Codes
-** KEYWORDS: {extended result code definitions}
-**
-** In its default configuration, SQLite API routines return one of 30 integer
-** [result codes].  However, experience has shown that many of
-** these result codes are too coarse-grained.  They do not provide as
-** much information about problems as programmers might like.  In an effort to
-** address this, newer versions of SQLite (version 3.3.8 [dateof:3.3.8]
-** and later) include
-** support for additional result codes that provide more detailed information
-** about errors. These [extended result codes] are enabled or disabled
-** on a per database connection basis using the
-** [tdsqlite3_extended_result_codes()] API.  Or, the extended code for
-** the most recent error can be obtained using
-** [tdsqlite3_extended_errcode()].
-*/
-#define SQLITE_ERROR_MISSING_COLLSEQ   (SQLITE_ERROR | (1<<8))
-#define SQLITE_ERROR_RETRY             (SQLITE_ERROR | (2<<8))
-#define SQLITE_ERROR_SNAPSHOT          (SQLITE_ERROR | (3<<8))
-#define SQLITE_IOERR_READ              (SQLITE_IOERR | (1<<8))
-#define SQLITE_IOERR_SHORT_READ        (SQLITE_IOERR | (2<<8))
-#define SQLITE_IOERR_WRITE             (SQLITE_IOERR | (3<<8))
-#define SQLITE_IOERR_FSYNC             (SQLITE_IOERR | (4<<8))
-#define SQLITE_IOERR_DIR_FSYNC         (SQLITE_IOERR | (5<<8))
-#define SQLITE_IOERR_TRUNCATE          (SQLITE_IOERR | (6<<8))
-#define SQLITE_IOERR_FSTAT             (SQLITE_IOERR | (7<<8))
-#define SQLITE_IOERR_UNLOCK            (SQLITE_IOERR | (8<<8))
-#define SQLITE_IOERR_RDLOCK            (SQLITE_IOERR | (9<<8))
-#define SQLITE_IOERR_DELETE            (SQLITE_IOERR | (10<<8))
-#define SQLITE_IOERR_BLOCKED           (SQLITE_IOERR | (11<<8))
-#define SQLITE_IOERR_NOMEM             (SQLITE_IOERR | (12<<8))
-#define SQLITE_IOERR_ACCESS            (SQLITE_IOERR | (13<<8))
-#define SQLITE_IOERR_CHECKRESERVEDLOCK (SQLITE_IOERR | (14<<8))
-#define SQLITE_IOERR_LOCK              (SQLITE_IOERR | (15<<8))
-#define SQLITE_IOERR_CLOSE             (SQLITE_IOERR | (16<<8))
-#define SQLITE_IOERR_DIR_CLOSE         (SQLITE_IOERR | (17<<8))
-#define SQLITE_IOERR_SHMOPEN           (SQLITE_IOERR | (18<<8))
-#define SQLITE_IOERR_SHMSIZE           (SQLITE_IOERR | (19<<8))
-#define SQLITE_IOERR_SHMLOCK           (SQLITE_IOERR | (20<<8))
-#define SQLITE_IOERR_SHMMAP            (SQLITE_IOERR | (21<<8))
-#define SQLITE_IOERR_SEEK              (SQLITE_IOERR | (22<<8))
-#define SQLITE_IOERR_DELETE_NOENT      (SQLITE_IOERR | (23<<8))
-#define SQLITE_IOERR_MMAP              (SQLITE_IOERR | (24<<8))
-#define SQLITE_IOERR_GETTEMPPATH       (SQLITE_IOERR | (25<<8))
-#define SQLITE_IOERR_CONVPATH          (SQLITE_IOERR | (26<<8))
-#define SQLITE_IOERR_VNODE             (SQLITE_IOERR | (27<<8))
-#define SQLITE_IOERR_AUTH              (SQLITE_IOERR | (28<<8))
-#define SQLITE_IOERR_BEGIN_ATOMIC      (SQLITE_IOERR | (29<<8))
-#define SQLITE_IOERR_COMMIT_ATOMIC     (SQLITE_IOERR | (30<<8))
-#define SQLITE_IOERR_ROLLBACK_ATOMIC   (SQLITE_IOERR | (31<<8))
-#define SQLITE_LOCKED_SHAREDCACHE      (SQLITE_LOCKED |  (1<<8))
-#define SQLITE_LOCKED_VTAB             (SQLITE_LOCKED |  (2<<8))
-#define SQLITE_BUSY_RECOVERY           (SQLITE_BUSY   |  (1<<8))
-#define SQLITE_BUSY_SNAPSHOT           (SQLITE_BUSY   |  (2<<8))
-#define SQLITE_CANTOPEN_NOTEMPDIR      (SQLITE_CANTOPEN | (1<<8))
-#define SQLITE_CANTOPEN_ISDIR          (SQLITE_CANTOPEN | (2<<8))
-#define SQLITE_CANTOPEN_FULLPATH       (SQLITE_CANTOPEN | (3<<8))
-#define SQLITE_CANTOPEN_CONVPATH       (SQLITE_CANTOPEN | (4<<8))
-#define SQLITE_CANTOPEN_DIRTYWAL       (SQLITE_CANTOPEN | (5<<8)) /* Not Used */
-#define SQLITE_CANTOPEN_SYMLINK        (SQLITE_CANTOPEN | (6<<8))
-#define SQLITE_CORRUPT_VTAB            (SQLITE_CORRUPT | (1<<8))
-#define SQLITE_CORRUPT_SEQUENCE        (SQLITE_CORRUPT | (2<<8))
-#define SQLITE_READONLY_RECOVERY       (SQLITE_READONLY | (1<<8))
-#define SQLITE_READONLY_CANTLOCK       (SQLITE_READONLY | (2<<8))
-#define SQLITE_READONLY_ROLLBACK       (SQLITE_READONLY | (3<<8))
-#define SQLITE_READONLY_DBMOVED        (SQLITE_READONLY | (4<<8))
-#define SQLITE_READONLY_CANTINIT       (SQLITE_READONLY | (5<<8))
-#define SQLITE_READONLY_DIRECTORY      (SQLITE_READONLY | (6<<8))
-#define SQLITE_ABORT_ROLLBACK          (SQLITE_ABORT | (2<<8))
-#define SQLITE_CONSTRAINT_CHECK        (SQLITE_CONSTRAINT | (1<<8))
-#define SQLITE_CONSTRAINT_COMMITHOOK   (SQLITE_CONSTRAINT | (2<<8))
-#define SQLITE_CONSTRAINT_FOREIGNKEY   (SQLITE_CONSTRAINT | (3<<8))
-#define SQLITE_CONSTRAINT_FUNCTION     (SQLITE_CONSTRAINT | (4<<8))
-#define SQLITE_CONSTRAINT_NOTNULL      (SQLITE_CONSTRAINT | (5<<8))
-#define SQLITE_CONSTRAINT_PRIMARYKEY   (SQLITE_CONSTRAINT | (6<<8))
-#define SQLITE_CONSTRAINT_TRIGGER      (SQLITE_CONSTRAINT | (7<<8))
-#define SQLITE_CONSTRAINT_UNIQUE       (SQLITE_CONSTRAINT | (8<<8))
-#define SQLITE_CONSTRAINT_VTAB         (SQLITE_CONSTRAINT | (9<<8))
-#define SQLITE_CONSTRAINT_ROWID        (SQLITE_CONSTRAINT |(10<<8))
-#define SQLITE_CONSTRAINT_PINNED       (SQLITE_CONSTRAINT |(11<<8))
-#define SQLITE_NOTICE_RECOVER_WAL      (SQLITE_NOTICE | (1<<8))
-#define SQLITE_NOTICE_RECOVER_ROLLBACK (SQLITE_NOTICE | (2<<8))
-#define SQLITE_WARNING_AUTOINDEX       (SQLITE_WARNING | (1<<8))
-#define SQLITE_AUTH_USER               (SQLITE_AUTH | (1<<8))
-#define SQLITE_OK_LOAD_PERMANENTLY     (SQLITE_OK | (1<<8))
-#define SQLITE_OK_SYMLINK              (SQLITE_OK | (2<<8))
-
-/*
-** CAPI3REF: Flags For File Open Operations
-**
-** These bit values are intended for use in the
-** 3rd parameter to the [tdsqlite3_open_v2()] interface and
-** in the 4th parameter to the [tdsqlite3_vfs.xOpen] method.
-*/
-#define SQLITE_OPEN_READONLY         0x00000001  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_READWRITE        0x00000002  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_CREATE           0x00000004  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_DELETEONCLOSE    0x00000008  /* VFS only */
-#define SQLITE_OPEN_EXCLUSIVE        0x00000010  /* VFS only */
-#define SQLITE_OPEN_AUTOPROXY        0x00000020  /* VFS only */
-#define SQLITE_OPEN_URI              0x00000040  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_MEMORY           0x00000080  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_MAIN_DB          0x00000100  /* VFS only */
-#define SQLITE_OPEN_TEMP_DB          0x00000200  /* VFS only */
-#define SQLITE_OPEN_TRANSIENT_DB     0x00000400  /* VFS only */
-#define SQLITE_OPEN_MAIN_JOURNAL     0x00000800  /* VFS only */
-#define SQLITE_OPEN_TEMP_JOURNAL     0x00001000  /* VFS only */
-#define SQLITE_OPEN_SUBJOURNAL       0x00002000  /* VFS only */
-#define SQLITE_OPEN_MASTER_JOURNAL   0x00004000  /* VFS only */
-#define SQLITE_OPEN_NOMUTEX          0x00008000  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_FULLMUTEX        0x00010000  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_SHAREDCACHE      0x00020000  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_PRIVATECACHE     0x00040000  /* Ok for tdsqlite3_open_v2() */
-#define SQLITE_OPEN_WAL              0x00080000  /* VFS only */
-#define SQLITE_OPEN_NOFOLLOW         0x01000000  /* Ok for tdsqlite3_open_v2() */
-
-/* Reserved:                         0x00F00000 */
-
-/*
-** CAPI3REF: Device Characteristics
-**
-** The xDeviceCharacteristics method of the [tdsqlite3_io_methods]
-** object returns an integer which is a vector of these
-** bit values expressing I/O characteristics of the mass storage
-** device that holds the file that the [tdsqlite3_io_methods]
-** refers to.
-**
-** The SQLITE_IOCAP_ATOMIC property means that all writes of
-** any size are atomic.  The SQLITE_IOCAP_ATOMICnnn values
-** mean that writes of blocks that are nnn bytes in size and
-** are aligned to an address which is an integer multiple of
-** nnn are atomic.  The SQLITE_IOCAP_SAFE_APPEND value means
-** that when data is appended to a file, the data is appended
-** first then the size of the file is extended, never the other
-** way around.  The SQLITE_IOCAP_SEQUENTIAL property means that
-** information is written to disk in the same order as calls
-** to xWrite().  The SQLITE_IOCAP_POWERSAFE_OVERWRITE property means that
-** after reboot following a crash or power loss, the only bytes in a
-** file that were written at the application level might have changed
-** and that adjacent bytes, even bytes within the same sector are
-** guaranteed to be unchanged.  The SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN
-** flag indicates that a file cannot be deleted when open.  The
-** SQLITE_IOCAP_IMMUTABLE flag indicates that the file is on
-** read-only media and cannot be changed even by processes with
-** elevated privileges.
-**
-** The SQLITE_IOCAP_BATCH_ATOMIC property means that the underlying
-** filesystem supports doing multiple write operations atomically when those
-** write operations are bracketed by [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE] and
-** [SQLITE_FCNTL_COMMIT_ATOMIC_WRITE].
-*/
-#define SQLITE_IOCAP_ATOMIC                 0x00000001
-#define SQLITE_IOCAP_ATOMIC512              0x00000002
-#define SQLITE_IOCAP_ATOMIC1K               0x00000004
-#define SQLITE_IOCAP_ATOMIC2K               0x00000008
-#define SQLITE_IOCAP_ATOMIC4K               0x00000010
-#define SQLITE_IOCAP_ATOMIC8K               0x00000020
-#define SQLITE_IOCAP_ATOMIC16K              0x00000040
-#define SQLITE_IOCAP_ATOMIC32K              0x00000080
-#define SQLITE_IOCAP_ATOMIC64K              0x00000100
-#define SQLITE_IOCAP_SAFE_APPEND            0x00000200
-#define SQLITE_IOCAP_SEQUENTIAL             0x00000400
-#define SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN  0x00000800
-#define SQLITE_IOCAP_POWERSAFE_OVERWRITE    0x00001000
-#define SQLITE_IOCAP_IMMUTABLE              0x00002000
-#define SQLITE_IOCAP_BATCH_ATOMIC           0x00004000
-
-/*
-** CAPI3REF: File Locking Levels
-**
-** SQLite uses one of these integer values as the second
-** argument to calls it makes to the xLock() and xUnlock() methods
-** of an [tdsqlite3_io_methods] object.
-*/
-#define SQLITE_LOCK_NONE          0
-#define SQLITE_LOCK_SHARED        1
-#define SQLITE_LOCK_RESERVED      2
-#define SQLITE_LOCK_PENDING       3
-#define SQLITE_LOCK_EXCLUSIVE     4
-
-/*
-** CAPI3REF: Synchronization Type Flags
-**
-** When SQLite invokes the xSync() method of an
-** [tdsqlite3_io_methods] object it uses a combination of
-** these integer values as the second argument.
-**
-** When the SQLITE_SYNC_DATAONLY flag is used, it means that the
-** sync operation only needs to flush data to mass storage.  Inode
-** information need not be flushed. If the lower four bits of the flag
-** equal SQLITE_SYNC_NORMAL, that means to use normal fsync() semantics.
-** If the lower four bits equal SQLITE_SYNC_FULL, that means
-** to use Mac OS X style fullsync instead of fsync().
-**
-** Do not confuse the SQLITE_SYNC_NORMAL and SQLITE_SYNC_FULL flags
-** with the [PRAGMA synchronous]=NORMAL and [PRAGMA synchronous]=FULL
-** settings.  The [synchronous pragma] determines when calls to the
-** xSync VFS method occur and applies uniformly across all platforms.
-** The SQLITE_SYNC_NORMAL and SQLITE_SYNC_FULL flags determine how
-** energetic or rigorous or forceful the sync operations are and
-** only make a difference on Mac OSX for the default SQLite code.
-** (Third-party VFS implementations might also make the distinction
-** between SQLITE_SYNC_NORMAL and SQLITE_SYNC_FULL, but among the
-** operating systems natively supported by SQLite, only Mac OSX
-** cares about the difference.)
-*/
-#define SQLITE_SYNC_NORMAL        0x00002
-#define SQLITE_SYNC_FULL          0x00003
-#define SQLITE_SYNC_DATAONLY      0x00010
-
-/*
-** CAPI3REF: OS Interface Open File Handle
-**
-** An [tdsqlite3_file] object represents an open file in the 
-** [tdsqlite3_vfs | OS interface layer].  Individual OS interface
-** implementations will
-** want to subclass this object by appending additional fields
-** for their own use.  The pMethods entry is a pointer to an
-** [tdsqlite3_io_methods] object that defines methods for performing
-** I/O operations on the open file.
-*/
-typedef struct tdsqlite3_file tdsqlite3_file;
-struct tdsqlite3_file {
-  const struct tdsqlite3_io_methods *pMethods;  /* Methods for an open file */
-};
-
-/*
-** CAPI3REF: OS Interface File Virtual Methods Object
-**
-** Every file opened by the [tdsqlite3_vfs.xOpen] method populates an
-** [tdsqlite3_file] object (or, more commonly, a subclass of the
-** [tdsqlite3_file] object) with a pointer to an instance of this object.
-** This object defines the methods used to perform various operations
-** against the open file represented by the [tdsqlite3_file] object.
-**
-** If the [tdsqlite3_vfs.xOpen] method sets the tdsqlite3_file.pMethods element 
-** to a non-NULL pointer, then the tdsqlite3_io_methods.xClose method
-** may be invoked even if the [tdsqlite3_vfs.xOpen] reported that it failed.  The
-** only way to prevent a call to xClose following a failed [tdsqlite3_vfs.xOpen]
-** is for the [tdsqlite3_vfs.xOpen] to set the tdsqlite3_file.pMethods element
-** to NULL.
-**
-** The flags argument to xSync may be one of [SQLITE_SYNC_NORMAL] or
-** [SQLITE_SYNC_FULL].  The first choice is the normal fsync().
-** The second choice is a Mac OS X style fullsync.  The [SQLITE_SYNC_DATAONLY]
-** flag may be ORed in to indicate that only the data of the file
-** and not its inode needs to be synced.
-**
-** The integer values to xLock() and xUnlock() are one of
-** <ul>
-** <li> [SQLITE_LOCK_NONE],
-** <li> [SQLITE_LOCK_SHARED],
-** <li> [SQLITE_LOCK_RESERVED],
-** <li> [SQLITE_LOCK_PENDING], or
-** <li> [SQLITE_LOCK_EXCLUSIVE].
-** </ul>
-** xLock() increases the lock. xUnlock() decreases the lock.
-** The xCheckReservedLock() method checks whether any database connection,
-** either in this process or in some other process, is holding a RESERVED,
-** PENDING, or EXCLUSIVE lock on the file.  It returns true
-** if such a lock exists and false otherwise.
-**
-** The xFileControl() method is a generic interface that allows custom
-** VFS implementations to directly control an open file using the
-** [tdsqlite3_file_control()] interface.  The second "op" argument is an
-** integer opcode.  The third argument is a generic pointer intended to
-** point to a structure that may contain arguments or space in which to
-** write return values.  Potential uses for xFileControl() might be
-** functions to enable blocking locks with timeouts, to change the
-** locking strategy (for example to use dot-file locks), to inquire
-** about the status of a lock, or to break stale locks.  The SQLite
-** core reserves all opcodes less than 100 for its own use.
-** A [file control opcodes | list of opcodes] less than 100 is available.
-** Applications that define a custom xFileControl method should use opcodes
-** greater than 100 to avoid conflicts.  VFS implementations should
-** return [SQLITE_NOTFOUND] for file control opcodes that they do not
-** recognize.
-**
-** The xSectorSize() method returns the sector size of the
-** device that underlies the file.  The sector size is the
-** minimum write that can be performed without disturbing
-** other bytes in the file.  The xDeviceCharacteristics()
-** method returns a bit vector describing behaviors of the
-** underlying device:
-**
-** <ul>
-** <li> [SQLITE_IOCAP_ATOMIC]
-** <li> [SQLITE_IOCAP_ATOMIC512]
-** <li> [SQLITE_IOCAP_ATOMIC1K]
-** <li> [SQLITE_IOCAP_ATOMIC2K]
-** <li> [SQLITE_IOCAP_ATOMIC4K]
-** <li> [SQLITE_IOCAP_ATOMIC8K]
-** <li> [SQLITE_IOCAP_ATOMIC16K]
-** <li> [SQLITE_IOCAP_ATOMIC32K]
-** <li> [SQLITE_IOCAP_ATOMIC64K]
-** <li> [SQLITE_IOCAP_SAFE_APPEND]
-** <li> [SQLITE_IOCAP_SEQUENTIAL]
-** <li> [SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN]
-** <li> [SQLITE_IOCAP_POWERSAFE_OVERWRITE]
-** <li> [SQLITE_IOCAP_IMMUTABLE]
-** <li> [SQLITE_IOCAP_BATCH_ATOMIC]
-** </ul>
-**
-** The SQLITE_IOCAP_ATOMIC property means that all writes of
-** any size are atomic.  The SQLITE_IOCAP_ATOMICnnn values
-** mean that writes of blocks that are nnn bytes in size and
-** are aligned to an address which is an integer multiple of
-** nnn are atomic.  The SQLITE_IOCAP_SAFE_APPEND value means
-** that when data is appended to a file, the data is appended
-** first then the size of the file is extended, never the other
-** way around.  The SQLITE_IOCAP_SEQUENTIAL property means that
-** information is written to disk in the same order as calls
-** to xWrite().
-**
-** If xRead() returns SQLITE_IOERR_SHORT_READ it must also fill
-** in the unread portions of the buffer with zeros.  A VFS that
-** fails to zero-fill short reads might seem to work.  However,
-** failure to zero-fill short reads will eventually lead to
-** database corruption.
-*/
-typedef struct tdsqlite3_io_methods tdsqlite3_io_methods;
-struct tdsqlite3_io_methods {
-  int iVersion;
-  int (*xClose)(tdsqlite3_file*);
-  int (*xRead)(tdsqlite3_file*, void*, int iAmt, tdsqlite3_int64 iOfst);
-  int (*xWrite)(tdsqlite3_file*, const void*, int iAmt, tdsqlite3_int64 iOfst);
-  int (*xTruncate)(tdsqlite3_file*, tdsqlite3_int64 size);
-  int (*xSync)(tdsqlite3_file*, int flags);
-  int (*xFileSize)(tdsqlite3_file*, tdsqlite3_int64 *pSize);
-  int (*xLock)(tdsqlite3_file*, int);
-  int (*xUnlock)(tdsqlite3_file*, int);
-  int (*xCheckReservedLock)(tdsqlite3_file*, int *pResOut);
-  int (*xFileControl)(tdsqlite3_file*, int op, void *pArg);
-  int (*xSectorSize)(tdsqlite3_file*);
-  int (*xDeviceCharacteristics)(tdsqlite3_file*);
-  /* Methods above are valid for version 1 */
-  int (*xShmMap)(tdsqlite3_file*, int iPg, int pgsz, int, void volatile**);
-  int (*xShmLock)(tdsqlite3_file*, int offset, int n, int flags);
-  void (*xShmBarrier)(tdsqlite3_file*);
-  int (*xShmUnmap)(tdsqlite3_file*, int deleteFlag);
-  /* Methods above are valid for version 2 */
-  int (*xFetch)(tdsqlite3_file*, tdsqlite3_int64 iOfst, int iAmt, void **pp);
-  int (*xUnfetch)(tdsqlite3_file*, tdsqlite3_int64 iOfst, void *p);
-  /* Methods above are valid for version 3 */
-  /* Additional methods may be added in future releases */
-};
-
-/*
-** CAPI3REF: Standard File Control Opcodes
-** KEYWORDS: {file control opcodes} {file control opcode}
-**
-** These integer constants are opcodes for the xFileControl method
-** of the [tdsqlite3_io_methods] object and for the [tdsqlite3_file_control()]
-** interface.
-**
-** <ul>
-** <li>[[SQLITE_FCNTL_LOCKSTATE]]
-** The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging.  This
-** opcode causes the xFileControl method to write the current state of
-** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED],
-** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE])
-** into an integer that the pArg argument points to. This capability
-** is used during testing and is only available when the SQLITE_TEST
-** compile-time option is used.
-**
-** <li>[[SQLITE_FCNTL_SIZE_HINT]]
-** The [SQLITE_FCNTL_SIZE_HINT] opcode is used by SQLite to give the VFS
-** layer a hint of how large the database file will grow to be during the
-** current transaction.  This hint is not guaranteed to be accurate but it
-** is often close.  The underlying VFS might choose to preallocate database
-** file space based on this hint in order to help writes to the database
-** file run faster.
-**
-** <li>[[SQLITE_FCNTL_SIZE_LIMIT]]
-** The [SQLITE_FCNTL_SIZE_LIMIT] opcode is used by in-memory VFS that
-** implements [tdsqlite3_deserialize()] to set an upper bound on the size
-** of the in-memory database.  The argument is a pointer to a [tdsqlite3_int64].
-** If the integer pointed to is negative, then it is filled in with the
-** current limit.  Otherwise the limit is set to the larger of the value
-** of the integer pointed to and the current database size.  The integer
-** pointed to is set to the new limit.
-**
-** <li>[[SQLITE_FCNTL_CHUNK_SIZE]]
-** The [SQLITE_FCNTL_CHUNK_SIZE] opcode is used to request that the VFS
-** extends and truncates the database file in chunks of a size specified
-** by the user. The fourth argument to [tdsqlite3_file_control()] should 
-** point to an integer (type int) containing the new chunk-size to use
-** for the nominated database. Allocating database file space in large
-** chunks (say 1MB at a time), may reduce file-system fragmentation and
-** improve performance on some systems.
-**
-** <li>[[SQLITE_FCNTL_FILE_POINTER]]
-** The [SQLITE_FCNTL_FILE_POINTER] opcode is used to obtain a pointer
-** to the [tdsqlite3_file] object associated with a particular database
-** connection.  See also [SQLITE_FCNTL_JOURNAL_POINTER].
-**
-** <li>[[SQLITE_FCNTL_JOURNAL_POINTER]]
-** The [SQLITE_FCNTL_JOURNAL_POINTER] opcode is used to obtain a pointer
-** to the [tdsqlite3_file] object associated with the journal file (either
-** the [rollback journal] or the [write-ahead log]) for a particular database
-** connection.  See also [SQLITE_FCNTL_FILE_POINTER].
-**
-** <li>[[SQLITE_FCNTL_SYNC_OMITTED]]
-** No longer in use.
-**
-** <li>[[SQLITE_FCNTL_SYNC]]
-** The [SQLITE_FCNTL_SYNC] opcode is generated internally by SQLite and
-** sent to the VFS immediately before the xSync method is invoked on a
-** database file descriptor. Or, if the xSync method is not invoked 
-** because the user has configured SQLite with 
-** [PRAGMA synchronous | PRAGMA synchronous=OFF] it is invoked in place 
-** of the xSync method. In most cases, the pointer argument passed with
-** this file-control is NULL. However, if the database file is being synced
-** as part of a multi-database commit, the argument points to a nul-terminated
-** string containing the transactions master-journal file name. VFSes that 
-** do not need this signal should silently ignore this opcode. Applications 
-** should not call [tdsqlite3_file_control()] with this opcode as doing so may 
-** disrupt the operation of the specialized VFSes that do require it.  
-**
-** <li>[[SQLITE_FCNTL_COMMIT_PHASETWO]]
-** The [SQLITE_FCNTL_COMMIT_PHASETWO] opcode is generated internally by SQLite
-** and sent to the VFS after a transaction has been committed immediately
-** but before the database is unlocked. VFSes that do not need this signal
-** should silently ignore this opcode. Applications should not call
-** [tdsqlite3_file_control()] with this opcode as doing so may disrupt the 
-** operation of the specialized VFSes that do require it.  
-**
-** <li>[[SQLITE_FCNTL_WIN32_AV_RETRY]]
-** ^The [SQLITE_FCNTL_WIN32_AV_RETRY] opcode is used to configure automatic
-** retry counts and intervals for certain disk I/O operations for the
-** windows [VFS] in order to provide robustness in the presence of
-** anti-virus programs.  By default, the windows VFS will retry file read,
-** file write, and file delete operations up to 10 times, with a delay
-** of 25 milliseconds before the first retry and with the delay increasing
-** by an additional 25 milliseconds with each subsequent retry.  This
-** opcode allows these two values (10 retries and 25 milliseconds of delay)
-** to be adjusted.  The values are changed for all database connections
-** within the same process.  The argument is a pointer to an array of two
-** integers where the first integer is the new retry count and the second
-** integer is the delay.  If either integer is negative, then the setting
-** is not changed but instead the prior value of that setting is written
-** into the array entry, allowing the current retry settings to be
-** interrogated.  The zDbName parameter is ignored.
-**
-** <li>[[SQLITE_FCNTL_PERSIST_WAL]]
-** ^The [SQLITE_FCNTL_PERSIST_WAL] opcode is used to set or query the
-** persistent [WAL | Write Ahead Log] setting.  By default, the auxiliary
-** write ahead log ([WAL file]) and shared memory
-** files used for transaction control
-** are automatically deleted when the latest connection to the database
-** closes.  Setting persistent WAL mode causes those files to persist after
-** close.  Persisting the files is useful when other processes that do not
-** have write permission on the directory containing the database file want
-** to read the database file, as the WAL and shared memory files must exist
-** in order for the database to be readable.  The fourth parameter to
-** [tdsqlite3_file_control()] for this opcode should be a pointer to an integer.
-** That integer is 0 to disable persistent WAL mode or 1 to enable persistent
-** WAL mode.  If the integer is -1, then it is overwritten with the current
-** WAL persistence setting.
-**
-** <li>[[SQLITE_FCNTL_POWERSAFE_OVERWRITE]]
-** ^The [SQLITE_FCNTL_POWERSAFE_OVERWRITE] opcode is used to set or query the
-** persistent "powersafe-overwrite" or "PSOW" setting.  The PSOW setting
-** determines the [SQLITE_IOCAP_POWERSAFE_OVERWRITE] bit of the
-** xDeviceCharacteristics methods. The fourth parameter to
-** [tdsqlite3_file_control()] for this opcode should be a pointer to an integer.
-** That integer is 0 to disable zero-damage mode or 1 to enable zero-damage
-** mode.  If the integer is -1, then it is overwritten with the current
-** zero-damage mode setting.
-**
-** <li>[[SQLITE_FCNTL_OVERWRITE]]
-** ^The [SQLITE_FCNTL_OVERWRITE] opcode is invoked by SQLite after opening
-** a write transaction to indicate that, unless it is rolled back for some
-** reason, the entire database file will be overwritten by the current 
-** transaction. This is used by VACUUM operations.
-**
-** <li>[[SQLITE_FCNTL_VFSNAME]]
-** ^The [SQLITE_FCNTL_VFSNAME] opcode can be used to obtain the names of
-** all [VFSes] in the VFS stack.  The names are of all VFS shims and the
-** final bottom-level VFS are written into memory obtained from 
-** [tdsqlite3_malloc()] and the result is stored in the char* variable
-** that the fourth parameter of [tdsqlite3_file_control()] points to.
-** The caller is responsible for freeing the memory when done.  As with
-** all file-control actions, there is no guarantee that this will actually
-** do anything.  Callers should initialize the char* variable to a NULL
-** pointer in case this file-control is not implemented.  This file-control
-** is intended for diagnostic use only.
-**
-** <li>[[SQLITE_FCNTL_VFS_POINTER]]
-** ^The [SQLITE_FCNTL_VFS_POINTER] opcode finds a pointer to the top-level
-** [VFSes] currently in use.  ^(The argument X in
-** tdsqlite3_file_control(db,SQLITE_FCNTL_VFS_POINTER,X) must be
-** of type "[tdsqlite3_vfs] **".  This opcodes will set *X
-** to a pointer to the top-level VFS.)^
-** ^When there are multiple VFS shims in the stack, this opcode finds the
-** upper-most shim only.
-**
-** <li>[[SQLITE_FCNTL_PRAGMA]]
-** ^Whenever a [PRAGMA] statement is parsed, an [SQLITE_FCNTL_PRAGMA] 
-** file control is sent to the open [tdsqlite3_file] object corresponding
-** to the database file to which the pragma statement refers. ^The argument
-** to the [SQLITE_FCNTL_PRAGMA] file control is an array of
-** pointers to strings (char**) in which the second element of the array
-** is the name of the pragma and the third element is the argument to the
-** pragma or NULL if the pragma has no argument.  ^The handler for an
-** [SQLITE_FCNTL_PRAGMA] file control can optionally make the first element
-** of the char** argument point to a string obtained from [tdsqlite3_mprintf()]
-** or the equivalent and that string will become the result of the pragma or
-** the error message if the pragma fails. ^If the
-** [SQLITE_FCNTL_PRAGMA] file control returns [SQLITE_NOTFOUND], then normal 
-** [PRAGMA] processing continues.  ^If the [SQLITE_FCNTL_PRAGMA]
-** file control returns [SQLITE_OK], then the parser assumes that the
-** VFS has handled the PRAGMA itself and the parser generates a no-op
-** prepared statement if result string is NULL, or that returns a copy
-** of the result string if the string is non-NULL.
-** ^If the [SQLITE_FCNTL_PRAGMA] file control returns
-** any result code other than [SQLITE_OK] or [SQLITE_NOTFOUND], that means
-** that the VFS encountered an error while handling the [PRAGMA] and the
-** compilation of the PRAGMA fails with an error.  ^The [SQLITE_FCNTL_PRAGMA]
-** file control occurs at the beginning of pragma statement analysis and so
-** it is able to override built-in [PRAGMA] statements.
-**
-** <li>[[SQLITE_FCNTL_BUSYHANDLER]]
-** ^The [SQLITE_FCNTL_BUSYHANDLER]
-** file-control may be invoked by SQLite on the database file handle
-** shortly after it is opened in order to provide a custom VFS with access
-** to the connection's busy-handler callback. The argument is of type (void**)
-** - an array of two (void *) values. The first (void *) actually points
-** to a function of type (int (*)(void *)). In order to invoke the connection's
-** busy-handler, this function should be invoked with the second (void *) in
-** the array as the only argument. If it returns non-zero, then the operation
-** should be retried. If it returns zero, the custom VFS should abandon the
-** current operation.
-**
-** <li>[[SQLITE_FCNTL_TEMPFILENAME]]
-** ^Applications can invoke the [SQLITE_FCNTL_TEMPFILENAME] file-control
-** to have SQLite generate a
-** temporary filename using the same algorithm that is followed to generate
-** temporary filenames for TEMP tables and other internal uses.  The
-** argument should be a char** which will be filled with the filename
-** written into memory obtained from [tdsqlite3_malloc()].  The caller should
-** invoke [tdsqlite3_free()] on the result to avoid a memory leak.
-**
-** <li>[[SQLITE_FCNTL_MMAP_SIZE]]
-** The [SQLITE_FCNTL_MMAP_SIZE] file control is used to query or set the
-** maximum number of bytes that will be used for memory-mapped I/O.
-** The argument is a pointer to a value of type tdsqlite3_int64 that
-** is an advisory maximum number of bytes in the file to memory map.  The
-** pointer is overwritten with the old value.  The limit is not changed if
-** the value originally pointed to is negative, and so the current limit 
-** can be queried by passing in a pointer to a negative number.  This
-** file-control is used internally to implement [PRAGMA mmap_size].
-**
-** <li>[[SQLITE_FCNTL_TRACE]]
-** The [SQLITE_FCNTL_TRACE] file control provides advisory information
-** to the VFS about what the higher layers of the SQLite stack are doing.
-** This file control is used by some VFS activity tracing [shims].
-** The argument is a zero-terminated string.  Higher layers in the
-** SQLite stack may generate instances of this file control if
-** the [SQLITE_USE_FCNTL_TRACE] compile-time option is enabled.
-**
-** <li>[[SQLITE_FCNTL_HAS_MOVED]]
-** The [SQLITE_FCNTL_HAS_MOVED] file control interprets its argument as a
-** pointer to an integer and it writes a boolean into that integer depending
-** on whether or not the file has been renamed, moved, or deleted since it
-** was first opened.
-**
-** <li>[[SQLITE_FCNTL_WIN32_GET_HANDLE]]
-** The [SQLITE_FCNTL_WIN32_GET_HANDLE] opcode can be used to obtain the
-** underlying native file handle associated with a file handle.  This file
-** control interprets its argument as a pointer to a native file handle and
-** writes the resulting value there.
-**
-** <li>[[SQLITE_FCNTL_WIN32_SET_HANDLE]]
-** The [SQLITE_FCNTL_WIN32_SET_HANDLE] opcode is used for debugging.  This
-** opcode causes the xFileControl method to swap the file handle with the one
-** pointed to by the pArg argument.  This capability is used during testing
-** and only needs to be supported when SQLITE_TEST is defined.
-**
-** <li>[[SQLITE_FCNTL_WAL_BLOCK]]
-** The [SQLITE_FCNTL_WAL_BLOCK] is a signal to the VFS layer that it might
-** be advantageous to block on the next WAL lock if the lock is not immediately
-** available.  The WAL subsystem issues this signal during rare
-** circumstances in order to fix a problem with priority inversion.
-** Applications should <em>not</em> use this file-control.
-**
-** <li>[[SQLITE_FCNTL_ZIPVFS]]
-** The [SQLITE_FCNTL_ZIPVFS] opcode is implemented by zipvfs only. All other
-** VFS should return SQLITE_NOTFOUND for this opcode.
-**
-** <li>[[SQLITE_FCNTL_RBU]]
-** The [SQLITE_FCNTL_RBU] opcode is implemented by the special VFS used by
-** the RBU extension only.  All other VFS should return SQLITE_NOTFOUND for
-** this opcode.  
-**
-** <li>[[SQLITE_FCNTL_BEGIN_ATOMIC_WRITE]]
-** If the [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE] opcode returns SQLITE_OK, then
-** the file descriptor is placed in "batch write mode", which
-** means all subsequent write operations will be deferred and done
-** atomically at the next [SQLITE_FCNTL_COMMIT_ATOMIC_WRITE].  Systems
-** that do not support batch atomic writes will return SQLITE_NOTFOUND.
-** ^Following a successful SQLITE_FCNTL_BEGIN_ATOMIC_WRITE and prior to
-** the closing [SQLITE_FCNTL_COMMIT_ATOMIC_WRITE] or
-** [SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE], SQLite will make
-** no VFS interface calls on the same [tdsqlite3_file] file descriptor
-** except for calls to the xWrite method and the xFileControl method
-** with [SQLITE_FCNTL_SIZE_HINT].
-**
-** <li>[[SQLITE_FCNTL_COMMIT_ATOMIC_WRITE]]
-** The [SQLITE_FCNTL_COMMIT_ATOMIC_WRITE] opcode causes all write
-** operations since the previous successful call to 
-** [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE] to be performed atomically.
-** This file control returns [SQLITE_OK] if and only if the writes were
-** all performed successfully and have been committed to persistent storage.
-** ^Regardless of whether or not it is successful, this file control takes
-** the file descriptor out of batch write mode so that all subsequent
-** write operations are independent.
-** ^SQLite will never invoke SQLITE_FCNTL_COMMIT_ATOMIC_WRITE without
-** a prior successful call to [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE].
-**
-** <li>[[SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE]]
-** The [SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE] opcode causes all write
-** operations since the previous successful call to 
-** [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE] to be rolled back.
-** ^This file control takes the file descriptor out of batch write mode
-** so that all subsequent write operations are independent.
-** ^SQLite will never invoke SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE without
-** a prior successful call to [SQLITE_FCNTL_BEGIN_ATOMIC_WRITE].
-**
-** <li>[[SQLITE_FCNTL_LOCK_TIMEOUT]]
-** The [SQLITE_FCNTL_LOCK_TIMEOUT] opcode causes attempts to obtain
-** a file lock using the xLock or xShmLock methods of the VFS to wait
-** for up to M milliseconds before failing, where M is the single 
-** unsigned integer parameter.
-**
-** <li>[[SQLITE_FCNTL_DATA_VERSION]]
-** The [SQLITE_FCNTL_DATA_VERSION] opcode is used to detect changes to
-** a database file.  The argument is a pointer to a 32-bit unsigned integer.
-** The "data version" for the pager is written into the pointer.  The
-** "data version" changes whenever any change occurs to the corresponding
-** database file, either through SQL statements on the same database
-** connection or through transactions committed by separate database
-** connections possibly in other processes. The [tdsqlite3_total_changes()]
-** interface can be used to find if any database on the connection has changed,
-** but that interface responds to changes on TEMP as well as MAIN and does
-** not provide a mechanism to detect changes to MAIN only.  Also, the
-** [tdsqlite3_total_changes()] interface responds to internal changes only and
-** omits changes made by other database connections.  The
-** [PRAGMA data_version] command provides a mechanism to detect changes to
-** a single attached database that occur due to other database connections,
-** but omits changes implemented by the database connection on which it is
-** called.  This file control is the only mechanism to detect changes that
-** happen either internally or externally and that are associated with
-** a particular attached database.
-**
-** <li>[[SQLITE_FCNTL_CKPT_DONE]]
-** The [SQLITE_FCNTL_CKPT_DONE] opcode is invoked from within a checkpoint
-** in wal mode after the client has finished copying pages from the wal
-** file to the database file, but before the *-shm file is updated to
-** record the fact that the pages have been checkpointed.
-** </ul>
-*/
-#define SQLITE_FCNTL_LOCKSTATE               1
-#define SQLITE_FCNTL_GET_LOCKPROXYFILE       2
-#define SQLITE_FCNTL_SET_LOCKPROXYFILE       3
-#define SQLITE_FCNTL_LAST_ERRNO              4
-#define SQLITE_FCNTL_SIZE_HINT               5
-#define SQLITE_FCNTL_CHUNK_SIZE              6
-#define SQLITE_FCNTL_FILE_POINTER            7
-#define SQLITE_FCNTL_SYNC_OMITTED            8
-#define SQLITE_FCNTL_WIN32_AV_RETRY          9
-#define SQLITE_FCNTL_PERSIST_WAL            10
-#define SQLITE_FCNTL_OVERWRITE              11
-#define SQLITE_FCNTL_VFSNAME                12
-#define SQLITE_FCNTL_POWERSAFE_OVERWRITE    13
-#define SQLITE_FCNTL_PRAGMA                 14
-#define SQLITE_FCNTL_BUSYHANDLER            15
-#define SQLITE_FCNTL_TEMPFILENAME           16
-#define SQLITE_FCNTL_MMAP_SIZE              18
-#define SQLITE_FCNTL_TRACE                  19
-#define SQLITE_FCNTL_HAS_MOVED              20
-#define SQLITE_FCNTL_SYNC                   21
-#define SQLITE_FCNTL_COMMIT_PHASETWO        22
-#define SQLITE_FCNTL_WIN32_SET_HANDLE       23
-#define SQLITE_FCNTL_WAL_BLOCK              24
-#define SQLITE_FCNTL_ZIPVFS                 25
-#define SQLITE_FCNTL_RBU                    26
-#define SQLITE_FCNTL_VFS_POINTER            27
-#define SQLITE_FCNTL_JOURNAL_POINTER        28
-#define SQLITE_FCNTL_WIN32_GET_HANDLE       29
-#define SQLITE_FCNTL_PDB                    30
-#define SQLITE_FCNTL_BEGIN_ATOMIC_WRITE     31
-#define SQLITE_FCNTL_COMMIT_ATOMIC_WRITE    32
-#define SQLITE_FCNTL_ROLLBACK_ATOMIC_WRITE  33
-#define SQLITE_FCNTL_LOCK_TIMEOUT           34
-#define SQLITE_FCNTL_DATA_VERSION           35
-#define SQLITE_FCNTL_SIZE_LIMIT             36
-#define SQLITE_FCNTL_CKPT_DONE              37
-
-/* deprecated names */
-#define SQLITE_GET_LOCKPROXYFILE      SQLITE_FCNTL_GET_LOCKPROXYFILE
-#define SQLITE_SET_LOCKPROXYFILE      SQLITE_FCNTL_SET_LOCKPROXYFILE
-#define SQLITE_LAST_ERRNO             SQLITE_FCNTL_LAST_ERRNO
-
-
-/*
-** CAPI3REF: Mutex Handle
-**
-** The mutex module within SQLite defines [tdsqlite3_mutex] to be an
-** abstract type for a mutex object.  The SQLite core never looks
-** at the internal representation of an [tdsqlite3_mutex].  It only
-** deals with pointers to the [tdsqlite3_mutex] object.
-**
-** Mutexes are created using [tdsqlite3_mutex_alloc()].
-*/
-typedef struct tdsqlite3_mutex tdsqlite3_mutex;
-
-/*
-** CAPI3REF: Loadable Extension Thunk
-**
-** A pointer to the opaque tdsqlite3_api_routines structure is passed as
-** the third parameter to entry points of [loadable extensions].  This
-** structure must be typedefed in order to work around compiler warnings
-** on some platforms.
-*/
-typedef struct tdsqlite3_api_routines tdsqlite3_api_routines;
-
-/*
-** CAPI3REF: OS Interface Object
-**
-** An instance of the tdsqlite3_vfs object defines the interface between
-** the SQLite core and the underlying operating system.  The "vfs"
-** in the name of the object stands for "virtual file system".  See
-** the [VFS | VFS documentation] for further information.
-**
-** The VFS interface is sometimes extended by adding new methods onto
-** the end.  Each time such an extension occurs, the iVersion field
-** is incremented.  The iVersion value started out as 1 in
-** SQLite [version 3.5.0] on [dateof:3.5.0], then increased to 2
-** with SQLite [version 3.7.0] on [dateof:3.7.0], and then increased
-** to 3 with SQLite [version 3.7.6] on [dateof:3.7.6].  Additional fields
-** may be appended to the tdsqlite3_vfs object and the iVersion value
-** may increase again in future versions of SQLite.
-** Note that due to an oversight, the structure
-** of the tdsqlite3_vfs object changed in the transition from
-** SQLite [version 3.5.9] to [version 3.6.0] on [dateof:3.6.0]
-** and yet the iVersion field was not increased.
-**
-** The szOsFile field is the size of the subclassed [tdsqlite3_file]
-** structure used by this VFS.  mxPathname is the maximum length of
-** a pathname in this VFS.
-**
-** Registered tdsqlite3_vfs objects are kept on a linked list formed by
-** the pNext pointer.  The [tdsqlite3_vfs_register()]
-** and [tdsqlite3_vfs_unregister()] interfaces manage this list
-** in a thread-safe way.  The [tdsqlite3_vfs_find()] interface
-** searches the list.  Neither the application code nor the VFS
-** implementation should use the pNext pointer.
-**
-** The pNext field is the only field in the tdsqlite3_vfs
-** structure that SQLite will ever modify.  SQLite will only access
-** or modify this field while holding a particular static mutex.
-** The application should never modify anything within the tdsqlite3_vfs
-** object once the object has been registered.
-**
-** The zName field holds the name of the VFS module.  The name must
-** be unique across all VFS modules.
-**
-** [[tdsqlite3_vfs.xOpen]]
-** ^SQLite guarantees that the zFilename parameter to xOpen
-** is either a NULL pointer or string obtained
-** from xFullPathname() with an optional suffix added.
-** ^If a suffix is added to the zFilename parameter, it will
-** consist of a single "-" character followed by no more than
-** 11 alphanumeric and/or "-" characters.
-** ^SQLite further guarantees that
-** the string will be valid and unchanged until xClose() is
-** called. Because of the previous sentence,
-** the [tdsqlite3_file] can safely store a pointer to the
-** filename if it needs to remember the filename for some reason.
-** If the zFilename parameter to xOpen is a NULL pointer then xOpen
-** must invent its own temporary name for the file.  ^Whenever the 
-** xFilename parameter is NULL it will also be the case that the
-** flags parameter will include [SQLITE_OPEN_DELETEONCLOSE].
-**
-** The flags argument to xOpen() includes all bits set in
-** the flags argument to [tdsqlite3_open_v2()].  Or if [tdsqlite3_open()]
-** or [tdsqlite3_open16()] is used, then flags includes at least
-** [SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]. 
-** If xOpen() opens a file read-only then it sets *pOutFlags to
-** include [SQLITE_OPEN_READONLY].  Other bits in *pOutFlags may be set.
-**
-** ^(SQLite will also add one of the following flags to the xOpen()
-** call, depending on the object being opened:
-**
-** <ul>
-** <li>  [SQLITE_OPEN_MAIN_DB]
-** <li>  [SQLITE_OPEN_MAIN_JOURNAL]
-** <li>  [SQLITE_OPEN_TEMP_DB]
-** <li>  [SQLITE_OPEN_TEMP_JOURNAL]
-** <li>  [SQLITE_OPEN_TRANSIENT_DB]
-** <li>  [SQLITE_OPEN_SUBJOURNAL]
-** <li>  [SQLITE_OPEN_MASTER_JOURNAL]
-** <li>  [SQLITE_OPEN_WAL]
-** </ul>)^
-**
-** The file I/O implementation can use the object type flags to
-** change the way it deals with files.  For example, an application
-** that does not care about crash recovery or rollback might make
-** the open of a journal file a no-op.  Writes to this journal would
-** also be no-ops, and any attempt to read the journal would return
-** SQLITE_IOERR.  Or the implementation might recognize that a database
-** file will be doing page-aligned sector reads and writes in a random
-** order and set up its I/O subsystem accordingly.
-**
-** SQLite might also add one of the following flags to the xOpen method:
-**
-** <ul>
-** <li> [SQLITE_OPEN_DELETEONCLOSE]
-** <li> [SQLITE_OPEN_EXCLUSIVE]
-** </ul>
-**
-** The [SQLITE_OPEN_DELETEONCLOSE] flag means the file should be
-** deleted when it is closed.  ^The [SQLITE_OPEN_DELETEONCLOSE]
-** will be set for TEMP databases and their journals, transient
-** databases, and subjournals.
-**
-** ^The [SQLITE_OPEN_EXCLUSIVE] flag is always used in conjunction
-** with the [SQLITE_OPEN_CREATE] flag, which are both directly
-** analogous to the O_EXCL and O_CREAT flags of the POSIX open()
-** API.  The SQLITE_OPEN_EXCLUSIVE flag, when paired with the 
-** SQLITE_OPEN_CREATE, is used to indicate that file should always
-** be created, and that it is an error if it already exists.
-** It is <i>not</i> used to indicate the file should be opened 
-** for exclusive access.
-**
-** ^At least szOsFile bytes of memory are allocated by SQLite
-** to hold the [tdsqlite3_file] structure passed as the third
-** argument to xOpen.  The xOpen method does not have to
-** allocate the structure; it should just fill it in.  Note that
-** the xOpen method must set the tdsqlite3_file.pMethods to either
-** a valid [tdsqlite3_io_methods] object or to NULL.  xOpen must do
-** this even if the open fails.  SQLite expects that the tdsqlite3_file.pMethods
-** element will be valid after xOpen returns regardless of the success
-** or failure of the xOpen call.
-**
-** [[tdsqlite3_vfs.xAccess]]
-** ^The flags argument to xAccess() may be [SQLITE_ACCESS_EXISTS]
-** to test for the existence of a file, or [SQLITE_ACCESS_READWRITE] to
-** test whether a file is readable and writable, or [SQLITE_ACCESS_READ]
-** to test whether a file is at least readable.  The SQLITE_ACCESS_READ
-** flag is never actually used and is not implemented in the built-in
-** VFSes of SQLite.  The file is named by the second argument and can be a
-** directory. The xAccess method returns [SQLITE_OK] on success or some
-** non-zero error code if there is an I/O error or if the name of
-** the file given in the second argument is illegal.  If SQLITE_OK
-** is returned, then non-zero or zero is written into *pResOut to indicate
-** whether or not the file is accessible.  
-**
-** ^SQLite will always allocate at least mxPathname+1 bytes for the
-** output buffer xFullPathname.  The exact size of the output buffer
-** is also passed as a parameter to both  methods. If the output buffer
-** is not large enough, [SQLITE_CANTOPEN] should be returned. Since this is
-** handled as a fatal error by SQLite, vfs implementations should endeavor
-** to prevent this by setting mxPathname to a sufficiently large value.
-**
-** The xRandomness(), xSleep(), xCurrentTime(), and xCurrentTimeInt64()
-** interfaces are not strictly a part of the filesystem, but they are
-** included in the VFS structure for completeness.
-** The xRandomness() function attempts to return nBytes bytes
-** of good-quality randomness into zOut.  The return value is
-** the actual number of bytes of randomness obtained.
-** The xSleep() method causes the calling thread to sleep for at
-** least the number of microseconds given.  ^The xCurrentTime()
-** method returns a Julian Day Number for the current date and time as
-** a floating point value.
-** ^The xCurrentTimeInt64() method returns, as an integer, the Julian
-** Day Number multiplied by 86400000 (the number of milliseconds in 
-** a 24-hour day).  
-** ^SQLite will use the xCurrentTimeInt64() method to get the current
-** date and time if that method is available (if iVersion is 2 or 
-** greater and the function pointer is not NULL) and will fall back
-** to xCurrentTime() if xCurrentTimeInt64() is unavailable.
-**
-** ^The xSetSystemCall(), xGetSystemCall(), and xNestSystemCall() interfaces
-** are not used by the SQLite core.  These optional interfaces are provided
-** by some VFSes to facilitate testing of the VFS code. By overriding 
-** system calls with functions under its control, a test program can
-** simulate faults and error conditions that would otherwise be difficult
-** or impossible to induce.  The set of system calls that can be overridden
-** varies from one VFS to another, and from one version of the same VFS to the
-** next.  Applications that use these interfaces must be prepared for any
-** or all of these interfaces to be NULL or for their behavior to change
-** from one release to the next.  Applications must not attempt to access
-** any of these methods if the iVersion of the VFS is less than 3.
-*/
-typedef struct tdsqlite3_vfs tdsqlite3_vfs;
-typedef void (*tdsqlite3_syscall_ptr)(void);
-struct tdsqlite3_vfs {
-  int iVersion;            /* Structure version number (currently 3) */
-  int szOsFile;            /* Size of subclassed tdsqlite3_file */
-  int mxPathname;          /* Maximum file pathname length */
-  tdsqlite3_vfs *pNext;      /* Next registered VFS */
-  const char *zName;       /* Name of this virtual file system */
-  void *pAppData;          /* Pointer to application-specific data */
-  int (*xOpen)(tdsqlite3_vfs*, const char *zName, tdsqlite3_file*,
-               int flags, int *pOutFlags);
-  int (*xDelete)(tdsqlite3_vfs*, const char *zName, int syncDir);
-  int (*xAccess)(tdsqlite3_vfs*, const char *zName, int flags, int *pResOut);
-  int (*xFullPathname)(tdsqlite3_vfs*, const char *zName, int nOut, char *zOut);
-  void *(*xDlOpen)(tdsqlite3_vfs*, const char *zFilename);
-  void (*xDlError)(tdsqlite3_vfs*, int nByte, char *zErrMsg);
-  void (*(*xDlSym)(tdsqlite3_vfs*,void*, const char *zSymbol))(void);
-  void (*xDlClose)(tdsqlite3_vfs*, void*);
-  int (*xRandomness)(tdsqlite3_vfs*, int nByte, char *zOut);
-  int (*xSleep)(tdsqlite3_vfs*, int microseconds);
-  int (*xCurrentTime)(tdsqlite3_vfs*, double*);
-  int (*xGetLastError)(tdsqlite3_vfs*, int, char *);
-  /*
-  ** The methods above are in version 1 of the sqlite_vfs object
-  ** definition.  Those that follow are added in version 2 or later
-  */
-  int (*xCurrentTimeInt64)(tdsqlite3_vfs*, tdsqlite3_int64*);
-  /*
-  ** The methods above are in versions 1 and 2 of the sqlite_vfs object.
-  ** Those below are for version 3 and greater.
-  */
-  int (*xSetSystemCall)(tdsqlite3_vfs*, const char *zName, tdsqlite3_syscall_ptr);
-  tdsqlite3_syscall_ptr (*xGetSystemCall)(tdsqlite3_vfs*, const char *zName);
-  const char *(*xNextSystemCall)(tdsqlite3_vfs*, const char *zName);
-  /*
-  ** The methods above are in versions 1 through 3 of the sqlite_vfs object.
-  ** New fields may be appended in future versions.  The iVersion
-  ** value will increment whenever this happens. 
-  */
-};
-
-/*
-** CAPI3REF: Flags for the xAccess VFS method
-**
-** These integer constants can be used as the third parameter to
-** the xAccess method of an [tdsqlite3_vfs] object.  They determine
-** what kind of permissions the xAccess method is looking for.
-** With SQLITE_ACCESS_EXISTS, the xAccess method
-** simply checks whether the file exists.
-** With SQLITE_ACCESS_READWRITE, the xAccess method
-** checks whether the named directory is both readable and writable
-** (in other words, if files can be added, removed, and renamed within
-** the directory).
-** The SQLITE_ACCESS_READWRITE constant is currently used only by the
-** [temp_store_directory pragma], though this could change in a future
-** release of SQLite.
-** With SQLITE_ACCESS_READ, the xAccess method
-** checks whether the file is readable.  The SQLITE_ACCESS_READ constant is
-** currently unused, though it might be used in a future release of
-** SQLite.
-*/
-#define SQLITE_ACCESS_EXISTS    0
-#define SQLITE_ACCESS_READWRITE 1   /* Used by PRAGMA temp_store_directory */
-#define SQLITE_ACCESS_READ      2   /* Unused */
-
-/*
-** CAPI3REF: Flags for the xShmLock VFS method
-**
-** These integer constants define the various locking operations
-** allowed by the xShmLock method of [tdsqlite3_io_methods].  The
-** following are the only legal combinations of flags to the
-** xShmLock method:
-**
-** <ul>
-** <li>  SQLITE_SHM_LOCK | SQLITE_SHM_SHARED
-** <li>  SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE
-** <li>  SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED
-** <li>  SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE
-** </ul>
-**
-** When unlocking, the same SHARED or EXCLUSIVE flag must be supplied as
-** was given on the corresponding lock.  
-**
-** The xShmLock method can transition between unlocked and SHARED or
-** between unlocked and EXCLUSIVE.  It cannot transition between SHARED
-** and EXCLUSIVE.
-*/
-#define SQLITE_SHM_UNLOCK       1
-#define SQLITE_SHM_LOCK         2
-#define SQLITE_SHM_SHARED       4
-#define SQLITE_SHM_EXCLUSIVE    8
-
-/*
-** CAPI3REF: Maximum xShmLock index
-**
-** The xShmLock method on [tdsqlite3_io_methods] may use values
-** between 0 and this upper bound as its "offset" argument.
-** The SQLite core will never attempt to acquire or release a
-** lock outside of this range
-*/
-#define SQLITE_SHM_NLOCK        8
-
-
-/*
-** CAPI3REF: Initialize The SQLite Library
-**
-** ^The tdsqlite3_initialize() routine initializes the
-** SQLite library.  ^The tdsqlite3_shutdown() routine
-** deallocates any resources that were allocated by tdsqlite3_initialize().
-** These routines are designed to aid in process initialization and
-** shutdown on embedded systems.  Workstation applications using
-** SQLite normally do not need to invoke either of these routines.
-**
-** A call to tdsqlite3_initialize() is an "effective" call if it is
-** the first time tdsqlite3_initialize() is invoked during the lifetime of
-** the process, or if it is the first time tdsqlite3_initialize() is invoked
-** following a call to tdsqlite3_shutdown().  ^(Only an effective call
-** of tdsqlite3_initialize() does any initialization.  All other calls
-** are harmless no-ops.)^
-**
-** A call to tdsqlite3_shutdown() is an "effective" call if it is the first
-** call to tdsqlite3_shutdown() since the last tdsqlite3_initialize().  ^(Only
-** an effective call to tdsqlite3_shutdown() does any deinitialization.
-** All other valid calls to tdsqlite3_shutdown() are harmless no-ops.)^
-**
-** The tdsqlite3_initialize() interface is threadsafe, but tdsqlite3_shutdown()
-** is not.  The tdsqlite3_shutdown() interface must only be called from a
-** single thread.  All open [database connections] must be closed and all
-** other SQLite resources must be deallocated prior to invoking
-** tdsqlite3_shutdown().
-**
-** Among other things, ^tdsqlite3_initialize() will invoke
-** tdsqlite3_os_init().  Similarly, ^tdsqlite3_shutdown()
-** will invoke tdsqlite3_os_end().
-**
-** ^The tdsqlite3_initialize() routine returns [SQLITE_OK] on success.
-** ^If for some reason, tdsqlite3_initialize() is unable to initialize
-** the library (perhaps it is unable to allocate a needed resource such
-** as a mutex) it returns an [error code] other than [SQLITE_OK].
-**
-** ^The tdsqlite3_initialize() routine is called internally by many other
-** SQLite interfaces so that an application usually does not need to
-** invoke tdsqlite3_initialize() directly.  For example, [tdsqlite3_open()]
-** calls tdsqlite3_initialize() so the SQLite library will be automatically
-** initialized when [tdsqlite3_open()] is called if it has not be initialized
-** already.  ^However, if SQLite is compiled with the [SQLITE_OMIT_AUTOINIT]
-** compile-time option, then the automatic calls to tdsqlite3_initialize()
-** are omitted and the application must call tdsqlite3_initialize() directly
-** prior to using any other SQLite interface.  For maximum portability,
-** it is recommended that applications always invoke tdsqlite3_initialize()
-** directly prior to using any other SQLite interface.  Future releases
-** of SQLite may require this.  In other words, the behavior exhibited
-** when SQLite is compiled with [SQLITE_OMIT_AUTOINIT] might become the
-** default behavior in some future release of SQLite.
-**
-** The tdsqlite3_os_init() routine does operating-system specific
-** initialization of the SQLite library.  The tdsqlite3_os_end()
-** routine undoes the effect of tdsqlite3_os_init().  Typical tasks
-** performed by these routines include allocation or deallocation
-** of static resources, initialization of global variables,
-** setting up a default [tdsqlite3_vfs] module, or setting up
-** a default configuration using [tdsqlite3_config()].
-**
-** The application should never invoke either tdsqlite3_os_init()
-** or tdsqlite3_os_end() directly.  The application should only invoke
-** tdsqlite3_initialize() and tdsqlite3_shutdown().  The tdsqlite3_os_init()
-** interface is called automatically by tdsqlite3_initialize() and
-** tdsqlite3_os_end() is called by tdsqlite3_shutdown().  Appropriate
-** implementations for tdsqlite3_os_init() and tdsqlite3_os_end()
-** are built into SQLite when it is compiled for Unix, Windows, or OS/2.
-** When [custom builds | built for other platforms]
-** (using the [SQLITE_OS_OTHER=1] compile-time
-** option) the application must supply a suitable implementation for
-** tdsqlite3_os_init() and tdsqlite3_os_end().  An application-supplied
-** implementation of tdsqlite3_os_init() or tdsqlite3_os_end()
-** must return [SQLITE_OK] on success and some other [error code] upon
-** failure.
-*/
-SQLITE_API int tdsqlite3_initialize(void);
-SQLITE_API int tdsqlite3_shutdown(void);
-SQLITE_API int tdsqlite3_os_init(void);
-SQLITE_API int tdsqlite3_os_end(void);
-
-/*
-** CAPI3REF: Configuring The SQLite Library
-**
-** The tdsqlite3_config() interface is used to make global configuration
-** changes to SQLite in order to tune SQLite to the specific needs of
-** the application.  The default configuration is recommended for most
-** applications and so this routine is usually not necessary.  It is
-** provided to support rare applications with unusual needs.
-**
-** <b>The tdsqlite3_config() interface is not threadsafe. The application
-** must ensure that no other SQLite interfaces are invoked by other
-** threads while tdsqlite3_config() is running.</b>
-**
-** The tdsqlite3_config() interface
-** may only be invoked prior to library initialization using
-** [tdsqlite3_initialize()] or after shutdown by [tdsqlite3_shutdown()].
-** ^If tdsqlite3_config() is called after [tdsqlite3_initialize()] and before
-** [tdsqlite3_shutdown()] then it will return SQLITE_MISUSE.
-** Note, however, that ^tdsqlite3_config() can be called as part of the
-** implementation of an application-defined [tdsqlite3_os_init()].
-**
-** The first argument to tdsqlite3_config() is an integer
-** [configuration option] that determines
-** what property of SQLite is to be configured.  Subsequent arguments
-** vary depending on the [configuration option]
-** in the first argument.
-**
-** ^When a configuration option is set, tdsqlite3_config() returns [SQLITE_OK].
-** ^If the option is unknown or SQLite is unable to set the option
-** then this routine returns a non-zero [error code].
-*/
-SQLITE_API int tdsqlite3_config(int, ...);
-
-/*
-** CAPI3REF: Configure database connections
-** METHOD: tdsqlite3
-**
-** The tdsqlite3_db_config() interface is used to make configuration
-** changes to a [database connection].  The interface is similar to
-** [tdsqlite3_config()] except that the changes apply to a single
-** [database connection] (specified in the first argument).
-**
-** The second argument to tdsqlite3_db_config(D,V,...)  is the
-** [SQLITE_DBCONFIG_LOOKASIDE | configuration verb] - an integer code 
-** that indicates what aspect of the [database connection] is being configured.
-** Subsequent arguments vary depending on the configuration verb.
-**
-** ^Calls to tdsqlite3_db_config() return SQLITE_OK if and only if
-** the call is considered successful.
-*/
-SQLITE_API int tdsqlite3_db_config(tdsqlite3*, int op, ...);
-
-/*
-** CAPI3REF: Memory Allocation Routines
-**
-** An instance of this object defines the interface between SQLite
-** and low-level memory allocation routines.
-**
-** This object is used in only one place in the SQLite interface.
-** A pointer to an instance of this object is the argument to
-** [tdsqlite3_config()] when the configuration option is
-** [SQLITE_CONFIG_MALLOC] or [SQLITE_CONFIG_GETMALLOC].  
-** By creating an instance of this object
-** and passing it to [tdsqlite3_config]([SQLITE_CONFIG_MALLOC])
-** during configuration, an application can specify an alternative
-** memory allocation subsystem for SQLite to use for all of its
-** dynamic memory needs.
-**
-** Note that SQLite comes with several [built-in memory allocators]
-** that are perfectly adequate for the overwhelming majority of applications
-** and that this object is only useful to a tiny minority of applications
-** with specialized memory allocation requirements.  This object is
-** also used during testing of SQLite in order to specify an alternative
-** memory allocator that simulates memory out-of-memory conditions in
-** order to verify that SQLite recovers gracefully from such
-** conditions.
-**
-** The xMalloc, xRealloc, and xFree methods must work like the
-** malloc(), realloc() and free() functions from the standard C library.
-** ^SQLite guarantees that the second argument to
-** xRealloc is always a value returned by a prior call to xRoundup.
-**
-** xSize should return the allocated size of a memory allocation
-** previously obtained from xMalloc or xRealloc.  The allocated size
-** is always at least as big as the requested size but may be larger.
-**
-** The xRoundup method returns what would be the allocated size of
-** a memory allocation given a particular requested size.  Most memory
-** allocators round up memory allocations at least to the next multiple
-** of 8.  Some allocators round up to a larger multiple or to a power of 2.
-** Every memory allocation request coming in through [tdsqlite3_malloc()]
-** or [tdsqlite3_realloc()] first calls xRoundup.  If xRoundup returns 0, 
-** that causes the corresponding memory allocation to fail.
-**
-** The xInit method initializes the memory allocator.  For example,
-** it might allocate any required mutexes or initialize internal data
-** structures.  The xShutdown method is invoked (indirectly) by
-** [tdsqlite3_shutdown()] and should deallocate any resources acquired
-** by xInit.  The pAppData pointer is used as the only parameter to
-** xInit and xShutdown.
-**
-** SQLite holds the [SQLITE_MUTEX_STATIC_MASTER] mutex when it invokes
-** the xInit method, so the xInit method need not be threadsafe.  The
-** xShutdown method is only called from [tdsqlite3_shutdown()] so it does
-** not need to be threadsafe either.  For all other methods, SQLite
-** holds the [SQLITE_MUTEX_STATIC_MEM] mutex as long as the
-** [SQLITE_CONFIG_MEMSTATUS] configuration option is turned on (which
-** it is by default) and so the methods are automatically serialized.
-** However, if [SQLITE_CONFIG_MEMSTATUS] is disabled, then the other
-** methods must be threadsafe or else make their own arrangements for
-** serialization.
-**
-** SQLite will never invoke xInit() more than once without an intervening
-** call to xShutdown().
-*/
-typedef struct tdsqlite3_mem_methods tdsqlite3_mem_methods;
-struct tdsqlite3_mem_methods {
-  void *(*xMalloc)(int);         /* Memory allocation function */
-  void (*xFree)(void*);          /* Free a prior allocation */
-  void *(*xRealloc)(void*,int);  /* Resize an allocation */
-  int (*xSize)(void*);           /* Return the size of an allocation */
-  int (*xRoundup)(int);          /* Round up request size to allocation size */
-  int (*xInit)(void*);           /* Initialize the memory allocator */
-  void (*xShutdown)(void*);      /* Deinitialize the memory allocator */
-  void *pAppData;                /* Argument to xInit() and xShutdown() */
-};
-
-/*
-** CAPI3REF: Configuration Options
-** KEYWORDS: {configuration option}
-**
-** These constants are the available integer configuration options that
-** can be passed as the first argument to the [tdsqlite3_config()] interface.
-**
-** New configuration options may be added in future releases of SQLite.
-** Existing configuration options might be discontinued.  Applications
-** should check the return code from [tdsqlite3_config()] to make sure that
-** the call worked.  The [tdsqlite3_config()] interface will return a
-** non-zero [error code] if a discontinued or unsupported configuration option
-** is invoked.
-**
-** <dl>
-** [[SQLITE_CONFIG_SINGLETHREAD]] <dt>SQLITE_CONFIG_SINGLETHREAD</dt>
-** <dd>There are no arguments to this option.  ^This option sets the
-** [threading mode] to Single-thread.  In other words, it disables
-** all mutexing and puts SQLite into a mode where it can only be used
-** by a single thread.   ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** it is not possible to change the [threading mode] from its default
-** value of Single-thread and so [tdsqlite3_config()] will return 
-** [SQLITE_ERROR] if called with the SQLITE_CONFIG_SINGLETHREAD
-** configuration option.</dd>
-**
-** [[SQLITE_CONFIG_MULTITHREAD]] <dt>SQLITE_CONFIG_MULTITHREAD</dt>
-** <dd>There are no arguments to this option.  ^This option sets the
-** [threading mode] to Multi-thread.  In other words, it disables
-** mutexing on [database connection] and [prepared statement] objects.
-** The application is responsible for serializing access to
-** [database connections] and [prepared statements].  But other mutexes
-** are enabled so that SQLite will be safe to use in a multi-threaded
-** environment as long as no two threads attempt to use the same
-** [database connection] at the same time.  ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** it is not possible to set the Multi-thread [threading mode] and
-** [tdsqlite3_config()] will return [SQLITE_ERROR] if called with the
-** SQLITE_CONFIG_MULTITHREAD configuration option.</dd>
-**
-** [[SQLITE_CONFIG_SERIALIZED]] <dt>SQLITE_CONFIG_SERIALIZED</dt>
-** <dd>There are no arguments to this option.  ^This option sets the
-** [threading mode] to Serialized. In other words, this option enables
-** all mutexes including the recursive
-** mutexes on [database connection] and [prepared statement] objects.
-** In this mode (which is the default when SQLite is compiled with
-** [SQLITE_THREADSAFE=1]) the SQLite library will itself serialize access
-** to [database connections] and [prepared statements] so that the
-** application is free to use the same [database connection] or the
-** same [prepared statement] in different threads at the same time.
-** ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** it is not possible to set the Serialized [threading mode] and
-** [tdsqlite3_config()] will return [SQLITE_ERROR] if called with the
-** SQLITE_CONFIG_SERIALIZED configuration option.</dd>
-**
-** [[SQLITE_CONFIG_MALLOC]] <dt>SQLITE_CONFIG_MALLOC</dt>
-** <dd> ^(The SQLITE_CONFIG_MALLOC option takes a single argument which is 
-** a pointer to an instance of the [tdsqlite3_mem_methods] structure.
-** The argument specifies
-** alternative low-level memory allocation routines to be used in place of
-** the memory allocation routines built into SQLite.)^ ^SQLite makes
-** its own private copy of the content of the [tdsqlite3_mem_methods] structure
-** before the [tdsqlite3_config()] call returns.</dd>
-**
-** [[SQLITE_CONFIG_GETMALLOC]] <dt>SQLITE_CONFIG_GETMALLOC</dt>
-** <dd> ^(The SQLITE_CONFIG_GETMALLOC option takes a single argument which
-** is a pointer to an instance of the [tdsqlite3_mem_methods] structure.
-** The [tdsqlite3_mem_methods]
-** structure is filled with the currently defined memory allocation routines.)^
-** This option can be used to overload the default memory allocation
-** routines with a wrapper that simulations memory allocation failure or
-** tracks memory usage, for example. </dd>
-**
-** [[SQLITE_CONFIG_SMALL_MALLOC]] <dt>SQLITE_CONFIG_SMALL_MALLOC</dt>
-** <dd> ^The SQLITE_CONFIG_SMALL_MALLOC option takes single argument of
-** type int, interpreted as a boolean, which if true provides a hint to
-** SQLite that it should avoid large memory allocations if possible.
-** SQLite will run faster if it is free to make large memory allocations,
-** but some application might prefer to run slower in exchange for
-** guarantees about memory fragmentation that are possible if large
-** allocations are avoided.  This hint is normally off.
-** </dd>
-**
-** [[SQLITE_CONFIG_MEMSTATUS]] <dt>SQLITE_CONFIG_MEMSTATUS</dt>
-** <dd> ^The SQLITE_CONFIG_MEMSTATUS option takes single argument of type int,
-** interpreted as a boolean, which enables or disables the collection of
-** memory allocation statistics. ^(When memory allocation statistics are
-** disabled, the following SQLite interfaces become non-operational:
-**   <ul>
-**   <li> [tdsqlite3_hard_heap_limit64()]
-**   <li> [tdsqlite3_memory_used()]
-**   <li> [tdsqlite3_memory_highwater()]
-**   <li> [tdsqlite3_soft_heap_limit64()]
-**   <li> [tdsqlite3_status64()]
-**   </ul>)^
-** ^Memory allocation statistics are enabled by default unless SQLite is
-** compiled with [SQLITE_DEFAULT_MEMSTATUS]=0 in which case memory
-** allocation statistics are disabled by default.
-** </dd>
-**
-** [[SQLITE_CONFIG_SCRATCH]] <dt>SQLITE_CONFIG_SCRATCH</dt>
-** <dd> The SQLITE_CONFIG_SCRATCH option is no longer used.
-** </dd>
-**
-** [[SQLITE_CONFIG_PAGECACHE]] <dt>SQLITE_CONFIG_PAGECACHE</dt>
-** <dd> ^The SQLITE_CONFIG_PAGECACHE option specifies a memory pool
-** that SQLite can use for the database page cache with the default page
-** cache implementation.  
-** This configuration option is a no-op if an application-defined page
-** cache implementation is loaded using the [SQLITE_CONFIG_PCACHE2].
-** ^There are three arguments to SQLITE_CONFIG_PAGECACHE: A pointer to
-** 8-byte aligned memory (pMem), the size of each page cache line (sz),
-** and the number of cache lines (N).
-** The sz argument should be the size of the largest database page
-** (a power of two between 512 and 65536) plus some extra bytes for each
-** page header.  ^The number of extra bytes needed by the page header
-** can be determined using [SQLITE_CONFIG_PCACHE_HDRSZ].
-** ^It is harmless, apart from the wasted memory,
-** for the sz parameter to be larger than necessary.  The pMem
-** argument must be either a NULL pointer or a pointer to an 8-byte
-** aligned block of memory of at least sz*N bytes, otherwise
-** subsequent behavior is undefined.
-** ^When pMem is not NULL, SQLite will strive to use the memory provided
-** to satisfy page cache needs, falling back to [tdsqlite3_malloc()] if
-** a page cache line is larger than sz bytes or if all of the pMem buffer
-** is exhausted.
-** ^If pMem is NULL and N is non-zero, then each database connection
-** does an initial bulk allocation for page cache memory
-** from [tdsqlite3_malloc()] sufficient for N cache lines if N is positive or
-** of -1024*N bytes if N is negative, . ^If additional
-** page cache memory is needed beyond what is provided by the initial
-** allocation, then SQLite goes to [tdsqlite3_malloc()] separately for each
-** additional cache line. </dd>
-**
-** [[SQLITE_CONFIG_HEAP]] <dt>SQLITE_CONFIG_HEAP</dt>
-** <dd> ^The SQLITE_CONFIG_HEAP option specifies a static memory buffer 
-** that SQLite will use for all of its dynamic memory allocation needs
-** beyond those provided for by [SQLITE_CONFIG_PAGECACHE].
-** ^The SQLITE_CONFIG_HEAP option is only available if SQLite is compiled
-** with either [SQLITE_ENABLE_MEMSYS3] or [SQLITE_ENABLE_MEMSYS5] and returns
-** [SQLITE_ERROR] if invoked otherwise.
-** ^There are three arguments to SQLITE_CONFIG_HEAP:
-** An 8-byte aligned pointer to the memory,
-** the number of bytes in the memory buffer, and the minimum allocation size.
-** ^If the first pointer (the memory pointer) is NULL, then SQLite reverts
-** to using its default memory allocator (the system malloc() implementation),
-** undoing any prior invocation of [SQLITE_CONFIG_MALLOC].  ^If the
-** memory pointer is not NULL then the alternative memory
-** allocator is engaged to handle all of SQLites memory allocation needs.
-** The first pointer (the memory pointer) must be aligned to an 8-byte
-** boundary or subsequent behavior of SQLite will be undefined.
-** The minimum allocation size is capped at 2**12. Reasonable values
-** for the minimum allocation size are 2**5 through 2**8.</dd>
-**
-** [[SQLITE_CONFIG_MUTEX]] <dt>SQLITE_CONFIG_MUTEX</dt>
-** <dd> ^(The SQLITE_CONFIG_MUTEX option takes a single argument which is a
-** pointer to an instance of the [tdsqlite3_mutex_methods] structure.
-** The argument specifies alternative low-level mutex routines to be used
-** in place the mutex routines built into SQLite.)^  ^SQLite makes a copy of
-** the content of the [tdsqlite3_mutex_methods] structure before the call to
-** [tdsqlite3_config()] returns. ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** the entire mutexing subsystem is omitted from the build and hence calls to
-** [tdsqlite3_config()] with the SQLITE_CONFIG_MUTEX configuration option will
-** return [SQLITE_ERROR].</dd>
-**
-** [[SQLITE_CONFIG_GETMUTEX]] <dt>SQLITE_CONFIG_GETMUTEX</dt>
-** <dd> ^(The SQLITE_CONFIG_GETMUTEX option takes a single argument which
-** is a pointer to an instance of the [tdsqlite3_mutex_methods] structure.  The
-** [tdsqlite3_mutex_methods]
-** structure is filled with the currently defined mutex routines.)^
-** This option can be used to overload the default mutex allocation
-** routines with a wrapper used to track mutex usage for performance
-** profiling or testing, for example.   ^If SQLite is compiled with
-** the [SQLITE_THREADSAFE | SQLITE_THREADSAFE=0] compile-time option then
-** the entire mutexing subsystem is omitted from the build and hence calls to
-** [tdsqlite3_config()] with the SQLITE_CONFIG_GETMUTEX configuration option will
-** return [SQLITE_ERROR].</dd>
-**
-** [[SQLITE_CONFIG_LOOKASIDE]] <dt>SQLITE_CONFIG_LOOKASIDE</dt>
-** <dd> ^(The SQLITE_CONFIG_LOOKASIDE option takes two arguments that determine
-** the default size of lookaside memory on each [database connection].
-** The first argument is the
-** size of each lookaside buffer slot and the second is the number of
-** slots allocated to each database connection.)^  ^(SQLITE_CONFIG_LOOKASIDE
-** sets the <i>default</i> lookaside size. The [SQLITE_DBCONFIG_LOOKASIDE]
-** option to [tdsqlite3_db_config()] can be used to change the lookaside
-** configuration on individual connections.)^ </dd>
-**
-** [[SQLITE_CONFIG_PCACHE2]] <dt>SQLITE_CONFIG_PCACHE2</dt>
-** <dd> ^(The SQLITE_CONFIG_PCACHE2 option takes a single argument which is 
-** a pointer to an [tdsqlite3_pcache_methods2] object.  This object specifies
-** the interface to a custom page cache implementation.)^
-** ^SQLite makes a copy of the [tdsqlite3_pcache_methods2] object.</dd>
-**
-** [[SQLITE_CONFIG_GETPCACHE2]] <dt>SQLITE_CONFIG_GETPCACHE2</dt>
-** <dd> ^(The SQLITE_CONFIG_GETPCACHE2 option takes a single argument which
-** is a pointer to an [tdsqlite3_pcache_methods2] object.  SQLite copies of
-** the current page cache implementation into that object.)^ </dd>
-**
-** [[SQLITE_CONFIG_LOG]] <dt>SQLITE_CONFIG_LOG</dt>
-** <dd> The SQLITE_CONFIG_LOG option is used to configure the SQLite
-** global [error log].
-** (^The SQLITE_CONFIG_LOG option takes two arguments: a pointer to a
-** function with a call signature of void(*)(void*,int,const char*), 
-** and a pointer to void. ^If the function pointer is not NULL, it is
-** invoked by [tdsqlite3_log()] to process each logging event.  ^If the
-** function pointer is NULL, the [tdsqlite3_log()] interface becomes a no-op.
-** ^The void pointer that is the second argument to SQLITE_CONFIG_LOG is
-** passed through as the first parameter to the application-defined logger
-** function whenever that function is invoked.  ^The second parameter to
-** the logger function is a copy of the first parameter to the corresponding
-** [tdsqlite3_log()] call and is intended to be a [result code] or an
-** [extended result code].  ^The third parameter passed to the logger is
-** log message after formatting via [tdsqlite3_snprintf()].
-** The SQLite logging interface is not reentrant; the logger function
-** supplied by the application must not invoke any SQLite interface.
-** In a multi-threaded application, the application-defined logger
-** function must be threadsafe. </dd>
-**
-** [[SQLITE_CONFIG_URI]] <dt>SQLITE_CONFIG_URI
-** <dd>^(The SQLITE_CONFIG_URI option takes a single argument of type int.
-** If non-zero, then URI handling is globally enabled. If the parameter is zero,
-** then URI handling is globally disabled.)^ ^If URI handling is globally
-** enabled, all filenames passed to [tdsqlite3_open()], [tdsqlite3_open_v2()],
-** [tdsqlite3_open16()] or
-** specified as part of [ATTACH] commands are interpreted as URIs, regardless
-** of whether or not the [SQLITE_OPEN_URI] flag is set when the database
-** connection is opened. ^If it is globally disabled, filenames are
-** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the
-** database connection is opened. ^(By default, URI handling is globally
-** disabled. The default value may be changed by compiling with the
-** [SQLITE_USE_URI] symbol defined.)^
-**
-** [[SQLITE_CONFIG_COVERING_INDEX_SCAN]] <dt>SQLITE_CONFIG_COVERING_INDEX_SCAN
-** <dd>^The SQLITE_CONFIG_COVERING_INDEX_SCAN option takes a single integer
-** argument which is interpreted as a boolean in order to enable or disable
-** the use of covering indices for full table scans in the query optimizer.
-** ^The default setting is determined
-** by the [SQLITE_ALLOW_COVERING_INDEX_SCAN] compile-time option, or is "on"
-** if that compile-time option is omitted.
-** The ability to disable the use of covering indices for full table scans
-** is because some incorrectly coded legacy applications might malfunction
-** when the optimization is enabled.  Providing the ability to
-** disable the optimization allows the older, buggy application code to work
-** without change even with newer versions of SQLite.
-**
-** [[SQLITE_CONFIG_PCACHE]] [[SQLITE_CONFIG_GETPCACHE]]
-** <dt>SQLITE_CONFIG_PCACHE and SQLITE_CONFIG_GETPCACHE
-** <dd> These options are obsolete and should not be used by new code.
-** They are retained for backwards compatibility but are now no-ops.
-** </dd>
-**
-** [[SQLITE_CONFIG_SQLLOG]]
-** <dt>SQLITE_CONFIG_SQLLOG
-** <dd>This option is only available if sqlite is compiled with the
-** [SQLITE_ENABLE_SQLLOG] pre-processor macro defined. The first argument should
-** be a pointer to a function of type void(*)(void*,tdsqlite3*,const char*, int).
-** The second should be of type (void*). The callback is invoked by the library
-** in three separate circumstances, identified by the value passed as the
-** fourth parameter. If the fourth parameter is 0, then the database connection
-** passed as the second argument has just been opened. The third argument
-** points to a buffer containing the name of the main database file. If the
-** fourth parameter is 1, then the SQL statement that the third parameter
-** points to has just been executed. Or, if the fourth parameter is 2, then
-** the connection being passed as the second parameter is being closed. The
-** third parameter is passed NULL In this case.  An example of using this
-** configuration option can be seen in the "test_sqllog.c" source file in
-** the canonical SQLite source tree.</dd>
-**
-** [[SQLITE_CONFIG_MMAP_SIZE]]
-** <dt>SQLITE_CONFIG_MMAP_SIZE
-** <dd>^SQLITE_CONFIG_MMAP_SIZE takes two 64-bit integer (tdsqlite3_int64) values
-** that are the default mmap size limit (the default setting for
-** [PRAGMA mmap_size]) and the maximum allowed mmap size limit.
-** ^The default setting can be overridden by each database connection using
-** either the [PRAGMA mmap_size] command, or by using the
-** [SQLITE_FCNTL_MMAP_SIZE] file control.  ^(The maximum allowed mmap size
-** will be silently truncated if necessary so that it does not exceed the
-** compile-time maximum mmap size set by the
-** [SQLITE_MAX_MMAP_SIZE] compile-time option.)^
-** ^If either argument to this option is negative, then that argument is
-** changed to its compile-time default.
-**
-** [[SQLITE_CONFIG_WIN32_HEAPSIZE]]
-** <dt>SQLITE_CONFIG_WIN32_HEAPSIZE
-** <dd>^The SQLITE_CONFIG_WIN32_HEAPSIZE option is only available if SQLite is
-** compiled for Windows with the [SQLITE_WIN32_MALLOC] pre-processor macro
-** defined. ^SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value
-** that specifies the maximum size of the created heap.
-**
-** [[SQLITE_CONFIG_PCACHE_HDRSZ]]
-** <dt>SQLITE_CONFIG_PCACHE_HDRSZ
-** <dd>^The SQLITE_CONFIG_PCACHE_HDRSZ option takes a single parameter which
-** is a pointer to an integer and writes into that integer the number of extra
-** bytes per page required for each page in [SQLITE_CONFIG_PAGECACHE].
-** The amount of extra space required can change depending on the compiler,
-** target platform, and SQLite version.
-**
-** [[SQLITE_CONFIG_PMASZ]]
-** <dt>SQLITE_CONFIG_PMASZ
-** <dd>^The SQLITE_CONFIG_PMASZ option takes a single parameter which
-** is an unsigned integer and sets the "Minimum PMA Size" for the multithreaded
-** sorter to that integer.  The default minimum PMA Size is set by the
-** [SQLITE_SORTER_PMASZ] compile-time option.  New threads are launched
-** to help with sort operations when multithreaded sorting
-** is enabled (using the [PRAGMA threads] command) and the amount of content
-** to be sorted exceeds the page size times the minimum of the
-** [PRAGMA cache_size] setting and this value.
-**
-** [[SQLITE_CONFIG_STMTJRNL_SPILL]]
-** <dt>SQLITE_CONFIG_STMTJRNL_SPILL
-** <dd>^The SQLITE_CONFIG_STMTJRNL_SPILL option takes a single parameter which
-** becomes the [statement journal] spill-to-disk threshold.  
-** [Statement journals] are held in memory until their size (in bytes)
-** exceeds this threshold, at which point they are written to disk.
-** Or if the threshold is -1, statement journals are always held
-** exclusively in memory.
-** Since many statement journals never become large, setting the spill
-** threshold to a value such as 64KiB can greatly reduce the amount of
-** I/O required to support statement rollback.
-** The default value for this setting is controlled by the
-** [SQLITE_STMTJRNL_SPILL] compile-time option.
-**
-** [[SQLITE_CONFIG_SORTERREF_SIZE]]
-** <dt>SQLITE_CONFIG_SORTERREF_SIZE
-** <dd>The SQLITE_CONFIG_SORTERREF_SIZE option accepts a single parameter
-** of type (int) - the new value of the sorter-reference size threshold.
-** Usually, when SQLite uses an external sort to order records according
-** to an ORDER BY clause, all fields required by the caller are present in the
-** sorted records. However, if SQLite determines based on the declared type
-** of a table column that its values are likely to be very large - larger
-** than the configured sorter-reference size threshold - then a reference
-** is stored in each sorted record and the required column values loaded
-** from the database as records are returned in sorted order. The default
-** value for this option is to never use this optimization. Specifying a 
-** negative value for this option restores the default behaviour.
-** This option is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_SORTER_REFERENCES] compile-time option.
-**
-** [[SQLITE_CONFIG_MEMDB_MAXSIZE]]
-** <dt>SQLITE_CONFIG_MEMDB_MAXSIZE
-** <dd>The SQLITE_CONFIG_MEMDB_MAXSIZE option accepts a single parameter
-** [tdsqlite3_int64] parameter which is the default maximum size for an in-memory
-** database created using [tdsqlite3_deserialize()].  This default maximum
-** size can be adjusted up or down for individual databases using the
-** [SQLITE_FCNTL_SIZE_LIMIT] [tdsqlite3_file_control|file-control].  If this
-** configuration setting is never used, then the default maximum is determined
-** by the [SQLITE_MEMDB_DEFAULT_MAXSIZE] compile-time option.  If that
-** compile-time option is not set, then the default maximum is 1073741824.
-** </dl>
-*/
-#define SQLITE_CONFIG_SINGLETHREAD  1  /* nil */
-#define SQLITE_CONFIG_MULTITHREAD   2  /* nil */
-#define SQLITE_CONFIG_SERIALIZED    3  /* nil */
-#define SQLITE_CONFIG_MALLOC        4  /* tdsqlite3_mem_methods* */
-#define SQLITE_CONFIG_GETMALLOC     5  /* tdsqlite3_mem_methods* */
-#define SQLITE_CONFIG_SCRATCH       6  /* No longer used */
-#define SQLITE_CONFIG_PAGECACHE     7  /* void*, int sz, int N */
-#define SQLITE_CONFIG_HEAP          8  /* void*, int nByte, int min */
-#define SQLITE_CONFIG_MEMSTATUS     9  /* boolean */
-#define SQLITE_CONFIG_MUTEX        10  /* tdsqlite3_mutex_methods* */
-#define SQLITE_CONFIG_GETMUTEX     11  /* tdsqlite3_mutex_methods* */
-/* previously SQLITE_CONFIG_CHUNKALLOC 12 which is now unused. */ 
-#define SQLITE_CONFIG_LOOKASIDE    13  /* int int */
-#define SQLITE_CONFIG_PCACHE       14  /* no-op */
-#define SQLITE_CONFIG_GETPCACHE    15  /* no-op */
-#define SQLITE_CONFIG_LOG          16  /* xFunc, void* */
-#define SQLITE_CONFIG_URI          17  /* int */
-#define SQLITE_CONFIG_PCACHE2      18  /* tdsqlite3_pcache_methods2* */
-#define SQLITE_CONFIG_GETPCACHE2   19  /* tdsqlite3_pcache_methods2* */
-#define SQLITE_CONFIG_COVERING_INDEX_SCAN 20  /* int */
-#define SQLITE_CONFIG_SQLLOG       21  /* xSqllog, void* */
-#define SQLITE_CONFIG_MMAP_SIZE    22  /* tdsqlite3_int64, tdsqlite3_int64 */
-#define SQLITE_CONFIG_WIN32_HEAPSIZE      23  /* int nByte */
-#define SQLITE_CONFIG_PCACHE_HDRSZ        24  /* int *psz */
-#define SQLITE_CONFIG_PMASZ               25  /* unsigned int szPma */
-#define SQLITE_CONFIG_STMTJRNL_SPILL      26  /* int nByte */
-#define SQLITE_CONFIG_SMALL_MALLOC        27  /* boolean */
-#define SQLITE_CONFIG_SORTERREF_SIZE      28  /* int nByte */
-#define SQLITE_CONFIG_MEMDB_MAXSIZE       29  /* tdsqlite3_int64 */
-
-/*
-** CAPI3REF: Database Connection Configuration Options
-**
-** These constants are the available integer configuration options that
-** can be passed as the second argument to the [tdsqlite3_db_config()] interface.
-**
-** New configuration options may be added in future releases of SQLite.
-** Existing configuration options might be discontinued.  Applications
-** should check the return code from [tdsqlite3_db_config()] to make sure that
-** the call worked.  ^The [tdsqlite3_db_config()] interface will return a
-** non-zero [error code] if a discontinued or unsupported configuration option
-** is invoked.
-**
-** <dl>
-** [[SQLITE_DBCONFIG_LOOKASIDE]]
-** <dt>SQLITE_DBCONFIG_LOOKASIDE</dt>
-** <dd> ^This option takes three additional arguments that determine the 
-** [lookaside memory allocator] configuration for the [database connection].
-** ^The first argument (the third parameter to [tdsqlite3_db_config()] is a
-** pointer to a memory buffer to use for lookaside memory.
-** ^The first argument after the SQLITE_DBCONFIG_LOOKASIDE verb
-** may be NULL in which case SQLite will allocate the
-** lookaside buffer itself using [tdsqlite3_malloc()]. ^The second argument is the
-** size of each lookaside buffer slot.  ^The third argument is the number of
-** slots.  The size of the buffer in the first argument must be greater than
-** or equal to the product of the second and third arguments.  The buffer
-** must be aligned to an 8-byte boundary.  ^If the second argument to
-** SQLITE_DBCONFIG_LOOKASIDE is not a multiple of 8, it is internally
-** rounded down to the next smaller multiple of 8.  ^(The lookaside memory
-** configuration for a database connection can only be changed when that
-** connection is not currently using lookaside memory, or in other words
-** when the "current value" returned by
-** [tdsqlite3_db_status](D,[SQLITE_CONFIG_LOOKASIDE],...) is zero.
-** Any attempt to change the lookaside memory configuration when lookaside
-** memory is in use leaves the configuration unchanged and returns 
-** [SQLITE_BUSY].)^</dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_FKEY]]
-** <dt>SQLITE_DBCONFIG_ENABLE_FKEY</dt>
-** <dd> ^This option is used to enable or disable the enforcement of
-** [foreign key constraints].  There should be two additional arguments.
-** The first argument is an integer which is 0 to disable FK enforcement,
-** positive to enable FK enforcement or negative to leave FK enforcement
-** unchanged.  The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether FK enforcement is off or on
-** following this call.  The second parameter may be a NULL pointer, in
-** which case the FK enforcement setting is not reported back. </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_TRIGGER]]
-** <dt>SQLITE_DBCONFIG_ENABLE_TRIGGER</dt>
-** <dd> ^This option is used to enable or disable [CREATE TRIGGER | triggers].
-** There should be two additional arguments.
-** The first argument is an integer which is 0 to disable triggers,
-** positive to enable triggers or negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether triggers are disabled or enabled
-** following this call.  The second parameter may be a NULL pointer, in
-** which case the trigger setting is not reported back. </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_VIEW]]
-** <dt>SQLITE_DBCONFIG_ENABLE_VIEW</dt>
-** <dd> ^This option is used to enable or disable [CREATE VIEW | views].
-** There should be two additional arguments.
-** The first argument is an integer which is 0 to disable views,
-** positive to enable views or negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether views are disabled or enabled
-** following this call.  The second parameter may be a NULL pointer, in
-** which case the view setting is not reported back. </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER]]
-** <dt>SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER</dt>
-** <dd> ^This option is used to enable or disable the
-** [fts3_tokenizer()] function which is part of the
-** [FTS3] full-text search engine extension.
-** There should be two additional arguments.
-** The first argument is an integer which is 0 to disable fts3_tokenizer() or
-** positive to enable fts3_tokenizer() or negative to leave the setting
-** unchanged.
-** The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether fts3_tokenizer is disabled or enabled
-** following this call.  The second parameter may be a NULL pointer, in
-** which case the new setting is not reported back. </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION]]
-** <dt>SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION</dt>
-** <dd> ^This option is used to enable or disable the [tdsqlite3_load_extension()]
-** interface independently of the [load_extension()] SQL function.
-** The [tdsqlite3_enable_load_extension()] API enables or disables both the
-** C-API [tdsqlite3_load_extension()] and the SQL function [load_extension()].
-** There should be two additional arguments.
-** When the first argument to this interface is 1, then only the C-API is
-** enabled and the SQL function remains disabled.  If the first argument to
-** this interface is 0, then both the C-API and the SQL function are disabled.
-** If the first argument is -1, then no changes are made to state of either the
-** C-API or the SQL function.
-** The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether [tdsqlite3_load_extension()] interface
-** is disabled or enabled following this call.  The second parameter may
-** be a NULL pointer, in which case the new setting is not reported back.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_MAINDBNAME]] <dt>SQLITE_DBCONFIG_MAINDBNAME</dt>
-** <dd> ^This option is used to change the name of the "main" database
-** schema.  ^The sole argument is a pointer to a constant UTF8 string
-** which will become the new schema name in place of "main".  ^SQLite
-** does not make a copy of the new main schema name string, so the application
-** must ensure that the argument passed into this DBCONFIG option is unchanged
-** until after the database connection closes.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE]] 
-** <dt>SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE</dt>
-** <dd> Usually, when a database in wal mode is closed or detached from a 
-** database handle, SQLite checks if this will mean that there are now no 
-** connections at all to the database. If so, it performs a checkpoint 
-** operation before closing the connection. This option may be used to
-** override this behaviour. The first parameter passed to this operation
-** is an integer - positive to disable checkpoints-on-close, or zero (the
-** default) to enable them, and negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer
-** into which is written 0 or 1 to indicate whether checkpoints-on-close
-** have been disabled - 0 if they are not disabled, 1 if they are.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_ENABLE_QPSG]] <dt>SQLITE_DBCONFIG_ENABLE_QPSG</dt>
-** <dd>^(The SQLITE_DBCONFIG_ENABLE_QPSG option activates or deactivates
-** the [query planner stability guarantee] (QPSG).  When the QPSG is active,
-** a single SQL query statement will always use the same algorithm regardless
-** of values of [bound parameters].)^ The QPSG disables some query optimizations
-** that look at the values of bound parameters, which can make some queries
-** slower.  But the QPSG has the advantage of more predictable behavior.  With
-** the QPSG active, SQLite will always use the same query plan in the field as
-** was used during testing in the lab.
-** The first argument to this setting is an integer which is 0 to disable 
-** the QPSG, positive to enable QPSG, or negative to leave the setting
-** unchanged. The second parameter is a pointer to an integer into which
-** is written 0 or 1 to indicate whether the QPSG is disabled or enabled
-** following this call.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_TRIGGER_EQP]] <dt>SQLITE_DBCONFIG_TRIGGER_EQP</dt>
-** <dd> By default, the output of EXPLAIN QUERY PLAN commands does not 
-** include output for any operations performed by trigger programs. This
-** option is used to set or clear (the default) a flag that governs this
-** behavior. The first parameter passed to this operation is an integer -
-** positive to enable output for trigger programs, or zero to disable it,
-** or negative to leave the setting unchanged.
-** The second parameter is a pointer to an integer into which is written 
-** 0 or 1 to indicate whether output-for-triggers has been disabled - 0 if 
-** it is not disabled, 1 if it is.  
-** </dd>
-**
-** [[SQLITE_DBCONFIG_RESET_DATABASE]] <dt>SQLITE_DBCONFIG_RESET_DATABASE</dt>
-** <dd> Set the SQLITE_DBCONFIG_RESET_DATABASE flag and then run
-** [VACUUM] in order to reset a database back to an empty database
-** with no schema and no content. The following process works even for
-** a badly corrupted database file:
-** <ol>
-** <li> If the database connection is newly opened, make sure it has read the
-**      database schema by preparing then discarding some query against the
-**      database, or calling tdsqlite3_table_column_metadata(), ignoring any
-**      errors.  This step is only necessary if the application desires to keep
-**      the database in WAL mode after the reset if it was in WAL mode before
-**      the reset.  
-** <li> tdsqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0);
-** <li> [tdsqlite3_exec](db, "[VACUUM]", 0, 0, 0);
-** <li> tdsqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0);
-** </ol>
-** Because resetting a database is destructive and irreversible, the
-** process requires the use of this obscure API and multiple steps to help
-** ensure that it does not happen by accident.
-**
-** [[SQLITE_DBCONFIG_DEFENSIVE]] <dt>SQLITE_DBCONFIG_DEFENSIVE</dt>
-** <dd>The SQLITE_DBCONFIG_DEFENSIVE option activates or deactivates the
-** "defensive" flag for a database connection.  When the defensive
-** flag is enabled, language features that allow ordinary SQL to 
-** deliberately corrupt the database file are disabled.  The disabled
-** features include but are not limited to the following:
-** <ul>
-** <li> The [PRAGMA writable_schema=ON] statement.
-** <li> The [PRAGMA journal_mode=OFF] statement.
-** <li> Writes to the [sqlite_dbpage] virtual table.
-** <li> Direct writes to [shadow tables].
-** </ul>
-** </dd>
-**
-** [[SQLITE_DBCONFIG_WRITABLE_SCHEMA]] <dt>SQLITE_DBCONFIG_WRITABLE_SCHEMA</dt>
-** <dd>The SQLITE_DBCONFIG_WRITABLE_SCHEMA option activates or deactivates the
-** "writable_schema" flag. This has the same effect and is logically equivalent
-** to setting [PRAGMA writable_schema=ON] or [PRAGMA writable_schema=OFF].
-** The first argument to this setting is an integer which is 0 to disable 
-** the writable_schema, positive to enable writable_schema, or negative to
-** leave the setting unchanged. The second parameter is a pointer to an
-** integer into which is written 0 or 1 to indicate whether the writable_schema
-** is enabled or disabled following this call.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_LEGACY_ALTER_TABLE]]
-** <dt>SQLITE_DBCONFIG_LEGACY_ALTER_TABLE</dt>
-** <dd>The SQLITE_DBCONFIG_LEGACY_ALTER_TABLE option activates or deactivates
-** the legacy behavior of the [ALTER TABLE RENAME] command such it
-** behaves as it did prior to [version 3.24.0] (2018-06-04).  See the
-** "Compatibility Notice" on the [ALTER TABLE RENAME documentation] for
-** additional information. This feature can also be turned on and off
-** using the [PRAGMA legacy_alter_table] statement.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_DQS_DML]]
-** <dt>SQLITE_DBCONFIG_DQS_DML</td>
-** <dd>The SQLITE_DBCONFIG_DQS_DML option activates or deactivates
-** the legacy [double-quoted string literal] misfeature for DML statements
-** only, that is DELETE, INSERT, SELECT, and UPDATE statements. The
-** default value of this setting is determined by the [-DSQLITE_DQS]
-** compile-time option.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_DQS_DDL]]
-** <dt>SQLITE_DBCONFIG_DQS_DDL</td>
-** <dd>The SQLITE_DBCONFIG_DQS option activates or deactivates
-** the legacy [double-quoted string literal] misfeature for DDL statements,
-** such as CREATE TABLE and CREATE INDEX. The
-** default value of this setting is determined by the [-DSQLITE_DQS]
-** compile-time option.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_TRUSTED_SCHEMA]]
-** <dt>SQLITE_DBCONFIG_TRUSTED_SCHEMA</td>
-** <dd>The SQLITE_DBCONFIG_TRUSTED_SCHEMA option tells SQLite to
-** assume that database schemas (the contents of the [sqlite_master] tables)
-** are untainted by malicious content.
-** When the SQLITE_DBCONFIG_TRUSTED_SCHEMA option is disabled, SQLite
-** takes additional defensive steps to protect the application from harm
-** including:
-** <ul>
-** <li> Prohibit the use of SQL functions inside triggers, views,
-** CHECK constraints, DEFAULT clauses, expression indexes, 
-** partial indexes, or generated columns
-** unless those functions are tagged with [SQLITE_INNOCUOUS].
-** <li> Prohibit the use of virtual tables inside of triggers or views
-** unless those virtual tables are tagged with [SQLITE_VTAB_INNOCUOUS].
-** </ul>
-** This setting defaults to "on" for legacy compatibility, however
-** all applications are advised to turn it off if possible. This setting
-** can also be controlled using the [PRAGMA trusted_schema] statement.
-** </dd>
-**
-** [[SQLITE_DBCONFIG_LEGACY_FILE_FORMAT]]
-** <dt>SQLITE_DBCONFIG_LEGACY_FILE_FORMAT</td>
-** <dd>The SQLITE_DBCONFIG_LEGACY_FILE_FORMAT option activates or deactivates
-** the legacy file format flag.  When activated, this flag causes all newly
-** created database file to have a schema format version number (the 4-byte
-** integer found at offset 44 into the database header) of 1.  This in turn
-** means that the resulting database file will be readable and writable by
-** any SQLite version back to 3.0.0 ([dateof:3.0.0]).  Without this setting,
-** newly created databases are generally not understandable by SQLite versions
-** prior to 3.3.0 ([dateof:3.3.0]).  As these words are written, there
-** is now scarcely any need to generated database files that are compatible 
-** all the way back to version 3.0.0, and so this setting is of little
-** practical use, but is provided so that SQLite can continue to claim the
-** ability to generate new database files that are compatible with  version
-** 3.0.0.
-** <p>Note that when the SQLITE_DBCONFIG_LEGACY_FILE_FORMAT setting is on,
-** the [VACUUM] command will fail with an obscure error when attempting to
-** process a table with generated columns and a descending index.  This is
-** not considered a bug since SQLite versions 3.3.0 and earlier do not support
-** either generated columns or decending indexes.
-** </dd>
-** </dl>
-*/
-#define SQLITE_DBCONFIG_MAINDBNAME            1000 /* const char* */
-#define SQLITE_DBCONFIG_LOOKASIDE             1001 /* void* int int */
-#define SQLITE_DBCONFIG_ENABLE_FKEY           1002 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_TRIGGER        1003 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005 /* int int* */
-#define SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE      1006 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_QPSG           1007 /* int int* */
-#define SQLITE_DBCONFIG_TRIGGER_EQP           1008 /* int int* */
-#define SQLITE_DBCONFIG_RESET_DATABASE        1009 /* int int* */
-#define SQLITE_DBCONFIG_DEFENSIVE             1010 /* int int* */
-#define SQLITE_DBCONFIG_WRITABLE_SCHEMA       1011 /* int int* */
-#define SQLITE_DBCONFIG_LEGACY_ALTER_TABLE    1012 /* int int* */
-#define SQLITE_DBCONFIG_DQS_DML               1013 /* int int* */
-#define SQLITE_DBCONFIG_DQS_DDL               1014 /* int int* */
-#define SQLITE_DBCONFIG_ENABLE_VIEW           1015 /* int int* */
-#define SQLITE_DBCONFIG_LEGACY_FILE_FORMAT    1016 /* int int* */
-#define SQLITE_DBCONFIG_TRUSTED_SCHEMA        1017 /* int int* */
-#define SQLITE_DBCONFIG_MAX                   1017 /* Largest DBCONFIG */
-
-/*
-** CAPI3REF: Enable Or Disable Extended Result Codes
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_extended_result_codes() routine enables or disables the
-** [extended result codes] feature of SQLite. ^The extended result
-** codes are disabled by default for historical compatibility.
-*/
-SQLITE_API int tdsqlite3_extended_result_codes(tdsqlite3*, int onoff);
-
-/*
-** CAPI3REF: Last Insert Rowid
-** METHOD: tdsqlite3
-**
-** ^Each entry in most SQLite tables (except for [WITHOUT ROWID] tables)
-** has a unique 64-bit signed
-** integer key called the [ROWID | "rowid"]. ^The rowid is always available
-** as an undeclared column named ROWID, OID, or _ROWID_ as long as those
-** names are not also used by explicitly declared columns. ^If
-** the table has a column of type [INTEGER PRIMARY KEY] then that column
-** is another alias for the rowid.
-**
-** ^The tdsqlite3_last_insert_rowid(D) interface usually returns the [rowid] of
-** the most recent successful [INSERT] into a rowid table or [virtual table]
-** on database connection D. ^Inserts into [WITHOUT ROWID] tables are not
-** recorded. ^If no successful [INSERT]s into rowid tables have ever occurred 
-** on the database connection D, then tdsqlite3_last_insert_rowid(D) returns 
-** zero.
-**
-** As well as being set automatically as rows are inserted into database
-** tables, the value returned by this function may be set explicitly by
-** [tdsqlite3_set_last_insert_rowid()]
-**
-** Some virtual table implementations may INSERT rows into rowid tables as
-** part of committing a transaction (e.g. to flush data accumulated in memory
-** to disk). In this case subsequent calls to this function return the rowid
-** associated with these internal INSERT operations, which leads to 
-** unintuitive results. Virtual table implementations that do write to rowid
-** tables in this way can avoid this problem by restoring the original 
-** rowid value using [tdsqlite3_set_last_insert_rowid()] before returning 
-** control to the user.
-**
-** ^(If an [INSERT] occurs within a trigger then this routine will 
-** return the [rowid] of the inserted row as long as the trigger is 
-** running. Once the trigger program ends, the value returned 
-** by this routine reverts to what it was before the trigger was fired.)^
-**
-** ^An [INSERT] that fails due to a constraint violation is not a
-** successful [INSERT] and does not change the value returned by this
-** routine.  ^Thus INSERT OR FAIL, INSERT OR IGNORE, INSERT OR ROLLBACK,
-** and INSERT OR ABORT make no changes to the return value of this
-** routine when their insertion fails.  ^(When INSERT OR REPLACE
-** encounters a constraint violation, it does not fail.  The
-** INSERT continues to completion after deleting rows that caused
-** the constraint problem so INSERT OR REPLACE will always change
-** the return value of this interface.)^
-**
-** ^For the purposes of this routine, an [INSERT] is considered to
-** be successful even if it is subsequently rolled back.
-**
-** This function is accessible to SQL statements via the
-** [last_insert_rowid() SQL function].
-**
-** If a separate thread performs a new [INSERT] on the same
-** database connection while the [tdsqlite3_last_insert_rowid()]
-** function is running and thus changes the last insert [rowid],
-** then the value returned by [tdsqlite3_last_insert_rowid()] is
-** unpredictable and might not equal either the old or the new
-** last insert [rowid].
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_last_insert_rowid(tdsqlite3*);
-
-/*
-** CAPI3REF: Set the Last Insert Rowid value.
-** METHOD: tdsqlite3
-**
-** The tdsqlite3_set_last_insert_rowid(D, R) method allows the application to
-** set the value returned by calling tdsqlite3_last_insert_rowid(D) to R 
-** without inserting a row into the database.
-*/
-SQLITE_API void tdsqlite3_set_last_insert_rowid(tdsqlite3*,tdsqlite3_int64);
-
-/*
-** CAPI3REF: Count The Number Of Rows Modified
-** METHOD: tdsqlite3
-**
-** ^This function returns the number of rows modified, inserted or
-** deleted by the most recently completed INSERT, UPDATE or DELETE
-** statement on the database connection specified by the only parameter.
-** ^Executing any other type of SQL statement does not modify the value
-** returned by this function.
-**
-** ^Only changes made directly by the INSERT, UPDATE or DELETE statement are
-** considered - auxiliary changes caused by [CREATE TRIGGER | triggers], 
-** [foreign key actions] or [REPLACE] constraint resolution are not counted.
-** 
-** Changes to a view that are intercepted by 
-** [INSTEAD OF trigger | INSTEAD OF triggers] are not counted. ^The value 
-** returned by tdsqlite3_changes() immediately after an INSERT, UPDATE or 
-** DELETE statement run on a view is always zero. Only changes made to real 
-** tables are counted.
-**
-** Things are more complicated if the tdsqlite3_changes() function is
-** executed while a trigger program is running. This may happen if the
-** program uses the [changes() SQL function], or if some other callback
-** function invokes tdsqlite3_changes() directly. Essentially:
-** 
-** <ul>
-**   <li> ^(Before entering a trigger program the value returned by
-**        tdsqlite3_changes() function is saved. After the trigger program 
-**        has finished, the original value is restored.)^
-** 
-**   <li> ^(Within a trigger program each INSERT, UPDATE and DELETE 
-**        statement sets the value returned by tdsqlite3_changes() 
-**        upon completion as normal. Of course, this value will not include 
-**        any changes performed by sub-triggers, as the tdsqlite3_changes() 
-**        value will be saved and restored after each sub-trigger has run.)^
-** </ul>
-** 
-** ^This means that if the changes() SQL function (or similar) is used
-** by the first INSERT, UPDATE or DELETE statement within a trigger, it 
-** returns the value as set when the calling statement began executing.
-** ^If it is used by the second or subsequent such statement within a trigger 
-** program, the value returned reflects the number of rows modified by the 
-** previous INSERT, UPDATE or DELETE statement within the same trigger.
-**
-** If a separate thread makes changes on the same database connection
-** while [tdsqlite3_changes()] is running then the value returned
-** is unpredictable and not meaningful.
-**
-** See also:
-** <ul>
-** <li> the [tdsqlite3_total_changes()] interface
-** <li> the [count_changes pragma]
-** <li> the [changes() SQL function]
-** <li> the [data_version pragma]
-** </ul>
-*/
-SQLITE_API int tdsqlite3_changes(tdsqlite3*);
-
-/*
-** CAPI3REF: Total Number Of Rows Modified
-** METHOD: tdsqlite3
-**
-** ^This function returns the total number of rows inserted, modified or
-** deleted by all [INSERT], [UPDATE] or [DELETE] statements completed
-** since the database connection was opened, including those executed as
-** part of trigger programs. ^Executing any other type of SQL statement
-** does not affect the value returned by tdsqlite3_total_changes().
-** 
-** ^Changes made as part of [foreign key actions] are included in the
-** count, but those made as part of REPLACE constraint resolution are
-** not. ^Changes to a view that are intercepted by INSTEAD OF triggers 
-** are not counted.
-**
-** The [tdsqlite3_total_changes(D)] interface only reports the number
-** of rows that changed due to SQL statement run against database
-** connection D.  Any changes by other database connections are ignored.
-** To detect changes against a database file from other database
-** connections use the [PRAGMA data_version] command or the
-** [SQLITE_FCNTL_DATA_VERSION] [file control].
-** 
-** If a separate thread makes changes on the same database connection
-** while [tdsqlite3_total_changes()] is running then the value
-** returned is unpredictable and not meaningful.
-**
-** See also:
-** <ul>
-** <li> the [tdsqlite3_changes()] interface
-** <li> the [count_changes pragma]
-** <li> the [changes() SQL function]
-** <li> the [data_version pragma]
-** <li> the [SQLITE_FCNTL_DATA_VERSION] [file control]
-** </ul>
-*/
-SQLITE_API int tdsqlite3_total_changes(tdsqlite3*);
-
-/*
-** CAPI3REF: Interrupt A Long-Running Query
-** METHOD: tdsqlite3
-**
-** ^This function causes any pending database operation to abort and
-** return at its earliest opportunity. This routine is typically
-** called in response to a user action such as pressing "Cancel"
-** or Ctrl-C where the user wants a long query operation to halt
-** immediately.
-**
-** ^It is safe to call this routine from a thread different from the
-** thread that is currently running the database operation.  But it
-** is not safe to call this routine with a [database connection] that
-** is closed or might close before tdsqlite3_interrupt() returns.
-**
-** ^If an SQL operation is very nearly finished at the time when
-** tdsqlite3_interrupt() is called, then it might not have an opportunity
-** to be interrupted and might continue to completion.
-**
-** ^An SQL operation that is interrupted will return [SQLITE_INTERRUPT].
-** ^If the interrupted SQL operation is an INSERT, UPDATE, or DELETE
-** that is inside an explicit transaction, then the entire transaction
-** will be rolled back automatically.
-**
-** ^The tdsqlite3_interrupt(D) call is in effect until all currently running
-** SQL statements on [database connection] D complete.  ^Any new SQL statements
-** that are started after the tdsqlite3_interrupt() call and before the 
-** running statement count reaches zero are interrupted as if they had been
-** running prior to the tdsqlite3_interrupt() call.  ^New SQL statements
-** that are started after the running statement count reaches zero are
-** not effected by the tdsqlite3_interrupt().
-** ^A call to tdsqlite3_interrupt(D) that occurs when there are no running
-** SQL statements is a no-op and has no effect on SQL statements
-** that are started after the tdsqlite3_interrupt() call returns.
-*/
-SQLITE_API void tdsqlite3_interrupt(tdsqlite3*);
-
-/*
-** CAPI3REF: Determine If An SQL Statement Is Complete
-**
-** These routines are useful during command-line input to determine if the
-** currently entered text seems to form a complete SQL statement or
-** if additional input is needed before sending the text into
-** SQLite for parsing.  ^These routines return 1 if the input string
-** appears to be a complete SQL statement.  ^A statement is judged to be
-** complete if it ends with a semicolon token and is not a prefix of a
-** well-formed CREATE TRIGGER statement.  ^Semicolons that are embedded within
-** string literals or quoted identifier names or comments are not
-** independent tokens (they are part of the token in which they are
-** embedded) and thus do not count as a statement terminator.  ^Whitespace
-** and comments that follow the final semicolon are ignored.
-**
-** ^These routines return 0 if the statement is incomplete.  ^If a
-** memory allocation fails, then SQLITE_NOMEM is returned.
-**
-** ^These routines do not parse the SQL statements thus
-** will not detect syntactically incorrect SQL.
-**
-** ^(If SQLite has not been initialized using [tdsqlite3_initialize()] prior 
-** to invoking tdsqlite3_complete16() then tdsqlite3_initialize() is invoked
-** automatically by tdsqlite3_complete16().  If that initialization fails,
-** then the return value from tdsqlite3_complete16() will be non-zero
-** regardless of whether or not the input SQL is complete.)^
-**
-** The input to [tdsqlite3_complete()] must be a zero-terminated
-** UTF-8 string.
-**
-** The input to [tdsqlite3_complete16()] must be a zero-terminated
-** UTF-16 string in native byte order.
-*/
-SQLITE_API int tdsqlite3_complete(const char *sql);
-SQLITE_API int tdsqlite3_complete16(const void *sql);
-
-/*
-** CAPI3REF: Register A Callback To Handle SQLITE_BUSY Errors
-** KEYWORDS: {busy-handler callback} {busy handler}
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_busy_handler(D,X,P) routine sets a callback function X
-** that might be invoked with argument P whenever
-** an attempt is made to access a database table associated with
-** [database connection] D when another thread
-** or process has the table locked.
-** The tdsqlite3_busy_handler() interface is used to implement
-** [tdsqlite3_busy_timeout()] and [PRAGMA busy_timeout].
-**
-** ^If the busy callback is NULL, then [SQLITE_BUSY]
-** is returned immediately upon encountering the lock.  ^If the busy callback
-** is not NULL, then the callback might be invoked with two arguments.
-**
-** ^The first argument to the busy handler is a copy of the void* pointer which
-** is the third argument to tdsqlite3_busy_handler().  ^The second argument to
-** the busy handler callback is the number of times that the busy handler has
-** been invoked previously for the same locking event.  ^If the
-** busy callback returns 0, then no additional attempts are made to
-** access the database and [SQLITE_BUSY] is returned
-** to the application.
-** ^If the callback returns non-zero, then another attempt
-** is made to access the database and the cycle repeats.
-**
-** The presence of a busy handler does not guarantee that it will be invoked
-** when there is lock contention. ^If SQLite determines that invoking the busy
-** handler could result in a deadlock, it will go ahead and return [SQLITE_BUSY]
-** to the application instead of invoking the 
-** busy handler.
-** Consider a scenario where one process is holding a read lock that
-** it is trying to promote to a reserved lock and
-** a second process is holding a reserved lock that it is trying
-** to promote to an exclusive lock.  The first process cannot proceed
-** because it is blocked by the second and the second process cannot
-** proceed because it is blocked by the first.  If both processes
-** invoke the busy handlers, neither will make any progress.  Therefore,
-** SQLite returns [SQLITE_BUSY] for the first process, hoping that this
-** will induce the first process to release its read lock and allow
-** the second process to proceed.
-**
-** ^The default busy callback is NULL.
-**
-** ^(There can only be a single busy handler defined for each
-** [database connection].  Setting a new busy handler clears any
-** previously set handler.)^  ^Note that calling [tdsqlite3_busy_timeout()]
-** or evaluating [PRAGMA busy_timeout=N] will change the
-** busy handler and thus clear any previously set busy handler.
-**
-** The busy callback should not take any actions which modify the
-** database connection that invoked the busy handler.  In other words,
-** the busy handler is not reentrant.  Any such actions
-** result in undefined behavior.
-** 
-** A busy handler must not close the database connection
-** or [prepared statement] that invoked the busy handler.
-*/
-SQLITE_API int tdsqlite3_busy_handler(tdsqlite3*,int(*)(void*,int),void*);
-
-/*
-** CAPI3REF: Set A Busy Timeout
-** METHOD: tdsqlite3
-**
-** ^This routine sets a [tdsqlite3_busy_handler | busy handler] that sleeps
-** for a specified amount of time when a table is locked.  ^The handler
-** will sleep multiple times until at least "ms" milliseconds of sleeping
-** have accumulated.  ^After at least "ms" milliseconds of sleeping,
-** the handler returns 0 which causes [tdsqlite3_step()] to return
-** [SQLITE_BUSY].
-**
-** ^Calling this routine with an argument less than or equal to zero
-** turns off all busy handlers.
-**
-** ^(There can only be a single busy handler for a particular
-** [database connection] at any given moment.  If another busy handler
-** was defined  (using [tdsqlite3_busy_handler()]) prior to calling
-** this routine, that other busy handler is cleared.)^
-**
-** See also:  [PRAGMA busy_timeout]
-*/
-SQLITE_API int tdsqlite3_busy_timeout(tdsqlite3*, int ms);
-
-/*
-** CAPI3REF: Convenience Routines For Running Queries
-** METHOD: tdsqlite3
-**
-** This is a legacy interface that is preserved for backwards compatibility.
-** Use of this interface is not recommended.
-**
-** Definition: A <b>result table</b> is memory data structure created by the
-** [tdsqlite3_get_table()] interface.  A result table records the
-** complete query results from one or more queries.
-**
-** The table conceptually has a number of rows and columns.  But
-** these numbers are not part of the result table itself.  These
-** numbers are obtained separately.  Let N be the number of rows
-** and M be the number of columns.
-**
-** A result table is an array of pointers to zero-terminated UTF-8 strings.
-** There are (N+1)*M elements in the array.  The first M pointers point
-** to zero-terminated strings that  contain the names of the columns.
-** The remaining entries all point to query results.  NULL values result
-** in NULL pointers.  All other values are in their UTF-8 zero-terminated
-** string representation as returned by [tdsqlite3_column_text()].
-**
-** A result table might consist of one or more memory allocations.
-** It is not safe to pass a result table directly to [tdsqlite3_free()].
-** A result table should be deallocated using [tdsqlite3_free_table()].
-**
-** ^(As an example of the result table format, suppose a query result
-** is as follows:
-**
-** <blockquote><pre>
-**        Name        | Age
-**        -----------------------
-**        Alice       | 43
-**        Bob         | 28
-**        Cindy       | 21
-** </pre></blockquote>
-**
-** There are two columns (M==2) and three rows (N==3).  Thus the
-** result table has 8 entries.  Suppose the result table is stored
-** in an array named azResult.  Then azResult holds this content:
-**
-** <blockquote><pre>
-**        azResult&#91;0] = "Name";
-**        azResult&#91;1] = "Age";
-**        azResult&#91;2] = "Alice";
-**        azResult&#91;3] = "43";
-**        azResult&#91;4] = "Bob";
-**        azResult&#91;5] = "28";
-**        azResult&#91;6] = "Cindy";
-**        azResult&#91;7] = "21";
-** </pre></blockquote>)^
-**
-** ^The tdsqlite3_get_table() function evaluates one or more
-** semicolon-separated SQL statements in the zero-terminated UTF-8
-** string of its 2nd parameter and returns a result table to the
-** pointer given in its 3rd parameter.
-**
-** After the application has finished with the result from tdsqlite3_get_table(),
-** it must pass the result table pointer to tdsqlite3_free_table() in order to
-** release the memory that was malloced.  Because of the way the
-** [tdsqlite3_malloc()] happens within tdsqlite3_get_table(), the calling
-** function must not try to call [tdsqlite3_free()] directly.  Only
-** [tdsqlite3_free_table()] is able to release the memory properly and safely.
-**
-** The tdsqlite3_get_table() interface is implemented as a wrapper around
-** [tdsqlite3_exec()].  The tdsqlite3_get_table() routine does not have access
-** to any internal data structures of SQLite.  It uses only the public
-** interface defined here.  As a consequence, errors that occur in the
-** wrapper layer outside of the internal [tdsqlite3_exec()] call are not
-** reflected in subsequent calls to [tdsqlite3_errcode()] or
-** [tdsqlite3_errmsg()].
-*/
-SQLITE_API int tdsqlite3_get_table(
-  tdsqlite3 *db,          /* An open database */
-  const char *zSql,     /* SQL to be evaluated */
-  char ***pazResult,    /* Results of the query */
-  int *pnRow,           /* Number of result rows written here */
-  int *pnColumn,        /* Number of result columns written here */
-  char **pzErrmsg       /* Error msg written here */
-);
-SQLITE_API void tdsqlite3_free_table(char **result);
-
-/*
-** CAPI3REF: Formatted String Printing Functions
-**
-** These routines are work-alikes of the "printf()" family of functions
-** from the standard C library.
-** These routines understand most of the common formatting options from
-** the standard library printf() 
-** plus some additional non-standard formats ([%q], [%Q], [%w], and [%z]).
-** See the [built-in printf()] documentation for details.
-**
-** ^The tdsqlite3_mprintf() and tdsqlite3_vmprintf() routines write their
-** results into memory obtained from [tdsqlite3_malloc64()].
-** The strings returned by these two routines should be
-** released by [tdsqlite3_free()].  ^Both routines return a
-** NULL pointer if [tdsqlite3_malloc64()] is unable to allocate enough
-** memory to hold the resulting string.
-**
-** ^(The tdsqlite3_snprintf() routine is similar to "snprintf()" from
-** the standard C library.  The result is written into the
-** buffer supplied as the second parameter whose size is given by
-** the first parameter. Note that the order of the
-** first two parameters is reversed from snprintf().)^  This is an
-** historical accident that cannot be fixed without breaking
-** backwards compatibility.  ^(Note also that tdsqlite3_snprintf()
-** returns a pointer to its buffer instead of the number of
-** characters actually written into the buffer.)^  We admit that
-** the number of characters written would be a more useful return
-** value but we cannot change the implementation of tdsqlite3_snprintf()
-** now without breaking compatibility.
-**
-** ^As long as the buffer size is greater than zero, tdsqlite3_snprintf()
-** guarantees that the buffer is always zero-terminated.  ^The first
-** parameter "n" is the total size of the buffer, including space for
-** the zero terminator.  So the longest string that can be completely
-** written will be n-1 characters.
-**
-** ^The tdsqlite3_vsnprintf() routine is a varargs version of tdsqlite3_snprintf().
-**
-** See also:  [built-in printf()], [printf() SQL function]
-*/
-SQLITE_API char *tdsqlite3_mprintf(const char*,...);
-SQLITE_API char *tdsqlite3_vmprintf(const char*, va_list);
-SQLITE_API char *tdsqlite3_snprintf(int,char*,const char*, ...);
-SQLITE_API char *tdsqlite3_vsnprintf(int,char*,const char*, va_list);
-
-/*
-** CAPI3REF: Memory Allocation Subsystem
-**
-** The SQLite core uses these three routines for all of its own
-** internal memory allocation needs. "Core" in the previous sentence
-** does not include operating-system specific [VFS] implementation.  The
-** Windows VFS uses native malloc() and free() for some operations.
-**
-** ^The tdsqlite3_malloc() routine returns a pointer to a block
-** of memory at least N bytes in length, where N is the parameter.
-** ^If tdsqlite3_malloc() is unable to obtain sufficient free
-** memory, it returns a NULL pointer.  ^If the parameter N to
-** tdsqlite3_malloc() is zero or negative then tdsqlite3_malloc() returns
-** a NULL pointer.
-**
-** ^The tdsqlite3_malloc64(N) routine works just like
-** tdsqlite3_malloc(N) except that N is an unsigned 64-bit integer instead
-** of a signed 32-bit integer.
-**
-** ^Calling tdsqlite3_free() with a pointer previously returned
-** by tdsqlite3_malloc() or tdsqlite3_realloc() releases that memory so
-** that it might be reused.  ^The tdsqlite3_free() routine is
-** a no-op if is called with a NULL pointer.  Passing a NULL pointer
-** to tdsqlite3_free() is harmless.  After being freed, memory
-** should neither be read nor written.  Even reading previously freed
-** memory might result in a segmentation fault or other severe error.
-** Memory corruption, a segmentation fault, or other severe error
-** might result if tdsqlite3_free() is called with a non-NULL pointer that
-** was not obtained from tdsqlite3_malloc() or tdsqlite3_realloc().
-**
-** ^The tdsqlite3_realloc(X,N) interface attempts to resize a
-** prior memory allocation X to be at least N bytes.
-** ^If the X parameter to tdsqlite3_realloc(X,N)
-** is a NULL pointer then its behavior is identical to calling
-** tdsqlite3_malloc(N).
-** ^If the N parameter to tdsqlite3_realloc(X,N) is zero or
-** negative then the behavior is exactly the same as calling
-** tdsqlite3_free(X).
-** ^tdsqlite3_realloc(X,N) returns a pointer to a memory allocation
-** of at least N bytes in size or NULL if insufficient memory is available.
-** ^If M is the size of the prior allocation, then min(N,M) bytes
-** of the prior allocation are copied into the beginning of buffer returned
-** by tdsqlite3_realloc(X,N) and the prior allocation is freed.
-** ^If tdsqlite3_realloc(X,N) returns NULL and N is positive, then the
-** prior allocation is not freed.
-**
-** ^The tdsqlite3_realloc64(X,N) interfaces works the same as
-** tdsqlite3_realloc(X,N) except that N is a 64-bit unsigned integer instead
-** of a 32-bit signed integer.
-**
-** ^If X is a memory allocation previously obtained from tdsqlite3_malloc(),
-** tdsqlite3_malloc64(), tdsqlite3_realloc(), or tdsqlite3_realloc64(), then
-** tdsqlite3_msize(X) returns the size of that memory allocation in bytes.
-** ^The value returned by tdsqlite3_msize(X) might be larger than the number
-** of bytes requested when X was allocated.  ^If X is a NULL pointer then
-** tdsqlite3_msize(X) returns zero.  If X points to something that is not
-** the beginning of memory allocation, or if it points to a formerly
-** valid memory allocation that has now been freed, then the behavior
-** of tdsqlite3_msize(X) is undefined and possibly harmful.
-**
-** ^The memory returned by tdsqlite3_malloc(), tdsqlite3_realloc(),
-** tdsqlite3_malloc64(), and tdsqlite3_realloc64()
-** is always aligned to at least an 8 byte boundary, or to a
-** 4 byte boundary if the [SQLITE_4_BYTE_ALIGNED_MALLOC] compile-time
-** option is used.
-**
-** The pointer arguments to [tdsqlite3_free()] and [tdsqlite3_realloc()]
-** must be either NULL or else pointers obtained from a prior
-** invocation of [tdsqlite3_malloc()] or [tdsqlite3_realloc()] that have
-** not yet been released.
-**
-** The application must not read or write any part of
-** a block of memory after it has been released using
-** [tdsqlite3_free()] or [tdsqlite3_realloc()].
-*/
-SQLITE_API void *tdsqlite3_malloc(int);
-SQLITE_API void *tdsqlite3_malloc64(tdsqlite3_uint64);
-SQLITE_API void *tdsqlite3_realloc(void*, int);
-SQLITE_API void *tdsqlite3_realloc64(void*, tdsqlite3_uint64);
-SQLITE_API void tdsqlite3_free(void*);
-SQLITE_API tdsqlite3_uint64 tdsqlite3_msize(void*);
-
-/*
-** CAPI3REF: Memory Allocator Statistics
-**
-** SQLite provides these two interfaces for reporting on the status
-** of the [tdsqlite3_malloc()], [tdsqlite3_free()], and [tdsqlite3_realloc()]
-** routines, which form the built-in memory allocation subsystem.
-**
-** ^The [tdsqlite3_memory_used()] routine returns the number of bytes
-** of memory currently outstanding (malloced but not freed).
-** ^The [tdsqlite3_memory_highwater()] routine returns the maximum
-** value of [tdsqlite3_memory_used()] since the high-water mark
-** was last reset.  ^The values returned by [tdsqlite3_memory_used()] and
-** [tdsqlite3_memory_highwater()] include any overhead
-** added by SQLite in its implementation of [tdsqlite3_malloc()],
-** but not overhead added by the any underlying system library
-** routines that [tdsqlite3_malloc()] may call.
-**
-** ^The memory high-water mark is reset to the current value of
-** [tdsqlite3_memory_used()] if and only if the parameter to
-** [tdsqlite3_memory_highwater()] is true.  ^The value returned
-** by [tdsqlite3_memory_highwater(1)] is the high-water mark
-** prior to the reset.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_memory_used(void);
-SQLITE_API tdsqlite3_int64 tdsqlite3_memory_highwater(int resetFlag);
-
-/*
-** CAPI3REF: Pseudo-Random Number Generator
-**
-** SQLite contains a high-quality pseudo-random number generator (PRNG) used to
-** select random [ROWID | ROWIDs] when inserting new records into a table that
-** already uses the largest possible [ROWID].  The PRNG is also used for
-** the built-in random() and randomblob() SQL functions.  This interface allows
-** applications to access the same PRNG for other purposes.
-**
-** ^A call to this routine stores N bytes of randomness into buffer P.
-** ^The P parameter can be a NULL pointer.
-**
-** ^If this routine has not been previously called or if the previous
-** call had N less than one or a NULL pointer for P, then the PRNG is
-** seeded using randomness obtained from the xRandomness method of
-** the default [tdsqlite3_vfs] object.
-** ^If the previous call to this routine had an N of 1 or more and a
-** non-NULL P then the pseudo-randomness is generated
-** internally and without recourse to the [tdsqlite3_vfs] xRandomness
-** method.
-*/
-SQLITE_API void tdsqlite3_randomness(int N, void *P);
-
-/*
-** CAPI3REF: Compile-Time Authorization Callbacks
-** METHOD: tdsqlite3
-** KEYWORDS: {authorizer callback}
-**
-** ^This routine registers an authorizer callback with a particular
-** [database connection], supplied in the first argument.
-** ^The authorizer callback is invoked as SQL statements are being compiled
-** by [tdsqlite3_prepare()] or its variants [tdsqlite3_prepare_v2()],
-** [tdsqlite3_prepare_v3()], [tdsqlite3_prepare16()], [tdsqlite3_prepare16_v2()],
-** and [tdsqlite3_prepare16_v3()].  ^At various
-** points during the compilation process, as logic is being created
-** to perform various actions, the authorizer callback is invoked to
-** see if those actions are allowed.  ^The authorizer callback should
-** return [SQLITE_OK] to allow the action, [SQLITE_IGNORE] to disallow the
-** specific action but allow the SQL statement to continue to be
-** compiled, or [SQLITE_DENY] to cause the entire SQL statement to be
-** rejected with an error.  ^If the authorizer callback returns
-** any value other than [SQLITE_IGNORE], [SQLITE_OK], or [SQLITE_DENY]
-** then the [tdsqlite3_prepare_v2()] or equivalent call that triggered
-** the authorizer will fail with an error message.
-**
-** When the callback returns [SQLITE_OK], that means the operation
-** requested is ok.  ^When the callback returns [SQLITE_DENY], the
-** [tdsqlite3_prepare_v2()] or equivalent call that triggered the
-** authorizer will fail with an error message explaining that
-** access is denied. 
-**
-** ^The first parameter to the authorizer callback is a copy of the third
-** parameter to the tdsqlite3_set_authorizer() interface. ^The second parameter
-** to the callback is an integer [SQLITE_COPY | action code] that specifies
-** the particular action to be authorized. ^The third through sixth parameters
-** to the callback are either NULL pointers or zero-terminated strings
-** that contain additional details about the action to be authorized.
-** Applications must always be prepared to encounter a NULL pointer in any
-** of the third through the sixth parameters of the authorization callback.
-**
-** ^If the action code is [SQLITE_READ]
-** and the callback returns [SQLITE_IGNORE] then the
-** [prepared statement] statement is constructed to substitute
-** a NULL value in place of the table column that would have
-** been read if [SQLITE_OK] had been returned.  The [SQLITE_IGNORE]
-** return can be used to deny an untrusted user access to individual
-** columns of a table.
-** ^When a table is referenced by a [SELECT] but no column values are
-** extracted from that table (for example in a query like
-** "SELECT count(*) FROM tab") then the [SQLITE_READ] authorizer callback
-** is invoked once for that table with a column name that is an empty string.
-** ^If the action code is [SQLITE_DELETE] and the callback returns
-** [SQLITE_IGNORE] then the [DELETE] operation proceeds but the
-** [truncate optimization] is disabled and all rows are deleted individually.
-**
-** An authorizer is used when [tdsqlite3_prepare | preparing]
-** SQL statements from an untrusted source, to ensure that the SQL statements
-** do not try to access data they are not allowed to see, or that they do not
-** try to execute malicious statements that damage the database.  For
-** example, an application may allow a user to enter arbitrary
-** SQL queries for evaluation by a database.  But the application does
-** not want the user to be able to make arbitrary changes to the
-** database.  An authorizer could then be put in place while the
-** user-entered SQL is being [tdsqlite3_prepare | prepared] that
-** disallows everything except [SELECT] statements.
-**
-** Applications that need to process SQL from untrusted sources
-** might also consider lowering resource limits using [tdsqlite3_limit()]
-** and limiting database size using the [max_page_count] [PRAGMA]
-** in addition to using an authorizer.
-**
-** ^(Only a single authorizer can be in place on a database connection
-** at a time.  Each call to tdsqlite3_set_authorizer overrides the
-** previous call.)^  ^Disable the authorizer by installing a NULL callback.
-** The authorizer is disabled by default.
-**
-** The authorizer callback must not do anything that will modify
-** the database connection that invoked the authorizer callback.
-** Note that [tdsqlite3_prepare_v2()] and [tdsqlite3_step()] both modify their
-** database connections for the meaning of "modify" in this paragraph.
-**
-** ^When [tdsqlite3_prepare_v2()] is used to prepare a statement, the
-** statement might be re-prepared during [tdsqlite3_step()] due to a 
-** schema change.  Hence, the application should ensure that the
-** correct authorizer callback remains in place during the [tdsqlite3_step()].
-**
-** ^Note that the authorizer callback is invoked only during
-** [tdsqlite3_prepare()] or its variants.  Authorization is not
-** performed during statement evaluation in [tdsqlite3_step()], unless
-** as stated in the previous paragraph, tdsqlite3_step() invokes
-** tdsqlite3_prepare_v2() to reprepare a statement after a schema change.
-*/
-SQLITE_API int tdsqlite3_set_authorizer(
-  tdsqlite3*,
-  int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
-  void *pUserData
-);
-
-/*
-** CAPI3REF: Authorizer Return Codes
-**
-** The [tdsqlite3_set_authorizer | authorizer callback function] must
-** return either [SQLITE_OK] or one of these two constants in order
-** to signal SQLite whether or not the action is permitted.  See the
-** [tdsqlite3_set_authorizer | authorizer documentation] for additional
-** information.
-**
-** Note that SQLITE_IGNORE is also used as a [conflict resolution mode]
-** returned from the [tdsqlite3_vtab_on_conflict()] interface.
-*/
-#define SQLITE_DENY   1   /* Abort the SQL statement with an error */
-#define SQLITE_IGNORE 2   /* Don't allow access, but don't generate an error */
-
-/*
-** CAPI3REF: Authorizer Action Codes
-**
-** The [tdsqlite3_set_authorizer()] interface registers a callback function
-** that is invoked to authorize certain SQL statement actions.  The
-** second parameter to the callback is an integer code that specifies
-** what action is being authorized.  These are the integer action codes that
-** the authorizer callback may be passed.
-**
-** These action code values signify what kind of operation is to be
-** authorized.  The 3rd and 4th parameters to the authorization
-** callback function will be parameters or NULL depending on which of these
-** codes is used as the second parameter.  ^(The 5th parameter to the
-** authorizer callback is the name of the database ("main", "temp",
-** etc.) if applicable.)^  ^The 6th parameter to the authorizer callback
-** is the name of the inner-most trigger or view that is responsible for
-** the access attempt or NULL if this access attempt is directly from
-** top-level SQL code.
-*/
-/******************************************* 3rd ************ 4th ***********/
-#define SQLITE_CREATE_INDEX          1   /* Index Name      Table Name      */
-#define SQLITE_CREATE_TABLE          2   /* Table Name      NULL            */
-#define SQLITE_CREATE_TEMP_INDEX     3   /* Index Name      Table Name      */
-#define SQLITE_CREATE_TEMP_TABLE     4   /* Table Name      NULL            */
-#define SQLITE_CREATE_TEMP_TRIGGER   5   /* Trigger Name    Table Name      */
-#define SQLITE_CREATE_TEMP_VIEW      6   /* View Name       NULL            */
-#define SQLITE_CREATE_TRIGGER        7   /* Trigger Name    Table Name      */
-#define SQLITE_CREATE_VIEW           8   /* View Name       NULL            */
-#define SQLITE_DELETE                9   /* Table Name      NULL            */
-#define SQLITE_DROP_INDEX           10   /* Index Name      Table Name      */
-#define SQLITE_DROP_TABLE           11   /* Table Name      NULL            */
-#define SQLITE_DROP_TEMP_INDEX      12   /* Index Name      Table Name      */
-#define SQLITE_DROP_TEMP_TABLE      13   /* Table Name      NULL            */
-#define SQLITE_DROP_TEMP_TRIGGER    14   /* Trigger Name    Table Name      */
-#define SQLITE_DROP_TEMP_VIEW       15   /* View Name       NULL            */
-#define SQLITE_DROP_TRIGGER         16   /* Trigger Name    Table Name      */
-#define SQLITE_DROP_VIEW            17   /* View Name       NULL            */
-#define SQLITE_INSERT               18   /* Table Name      NULL            */
-#define SQLITE_PRAGMA               19   /* Pragma Name     1st arg or NULL */
-#define SQLITE_READ                 20   /* Table Name      Column Name     */
-#define SQLITE_SELECT               21   /* NULL            NULL            */
-#define SQLITE_TRANSACTION          22   /* Operation       NULL            */
-#define SQLITE_UPDATE               23   /* Table Name      Column Name     */
-#define SQLITE_ATTACH               24   /* Filename        NULL            */
-#define SQLITE_DETACH               25   /* Database Name   NULL            */
-#define SQLITE_ALTER_TABLE          26   /* Database Name   Table Name      */
-#define SQLITE_REINDEX              27   /* Index Name      NULL            */
-#define SQLITE_ANALYZE              28   /* Table Name      NULL            */
-#define SQLITE_CREATE_VTABLE        29   /* Table Name      Module Name     */
-#define SQLITE_DROP_VTABLE          30   /* Table Name      Module Name     */
-#define SQLITE_FUNCTION             31   /* NULL            Function Name   */
-#define SQLITE_SAVEPOINT            32   /* Operation       Savepoint Name  */
-#define SQLITE_COPY                  0   /* No longer used */
-#define SQLITE_RECURSIVE            33   /* NULL            NULL            */
-
-/*
-** CAPI3REF: Tracing And Profiling Functions
-** METHOD: tdsqlite3
-**
-** These routines are deprecated. Use the [tdsqlite3_trace_v2()] interface
-** instead of the routines described here.
-**
-** These routines register callback functions that can be used for
-** tracing and profiling the execution of SQL statements.
-**
-** ^The callback function registered by tdsqlite3_trace() is invoked at
-** various times when an SQL statement is being run by [tdsqlite3_step()].
-** ^The tdsqlite3_trace() callback is invoked with a UTF-8 rendering of the
-** SQL statement text as the statement first begins executing.
-** ^(Additional tdsqlite3_trace() callbacks might occur
-** as each triggered subprogram is entered.  The callbacks for triggers
-** contain a UTF-8 SQL comment that identifies the trigger.)^
-**
-** The [SQLITE_TRACE_SIZE_LIMIT] compile-time option can be used to limit
-** the length of [bound parameter] expansion in the output of tdsqlite3_trace().
-**
-** ^The callback function registered by tdsqlite3_profile() is invoked
-** as each SQL statement finishes.  ^The profile callback contains
-** the original statement text and an estimate of wall-clock time
-** of how long that statement took to run.  ^The profile callback
-** time is in units of nanoseconds, however the current implementation
-** is only capable of millisecond resolution so the six least significant
-** digits in the time are meaningless.  Future versions of SQLite
-** might provide greater resolution on the profiler callback.  Invoking
-** either [tdsqlite3_trace()] or [tdsqlite3_trace_v2()] will cancel the
-** profile callback.
-*/
-SQLITE_API SQLITE_DEPRECATED void *tdsqlite3_trace(tdsqlite3*,
-   void(*xTrace)(void*,const char*), void*);
-SQLITE_API SQLITE_DEPRECATED void *tdsqlite3_profile(tdsqlite3*,
-   void(*xProfile)(void*,const char*,tdsqlite3_uint64), void*);
-
-/*
-** CAPI3REF: SQL Trace Event Codes
-** KEYWORDS: SQLITE_TRACE
-**
-** These constants identify classes of events that can be monitored
-** using the [tdsqlite3_trace_v2()] tracing logic.  The M argument
-** to [tdsqlite3_trace_v2(D,M,X,P)] is an OR-ed combination of one or more of
-** the following constants.  ^The first argument to the trace callback
-** is one of the following constants.
-**
-** New tracing constants may be added in future releases.
-**
-** ^A trace callback has four arguments: xCallback(T,C,P,X).
-** ^The T argument is one of the integer type codes above.
-** ^The C argument is a copy of the context pointer passed in as the
-** fourth argument to [tdsqlite3_trace_v2()].
-** The P and X arguments are pointers whose meanings depend on T.
-**
-** <dl>
-** [[SQLITE_TRACE_STMT]] <dt>SQLITE_TRACE_STMT</dt>
-** <dd>^An SQLITE_TRACE_STMT callback is invoked when a prepared statement
-** first begins running and possibly at other times during the
-** execution of the prepared statement, such as at the start of each
-** trigger subprogram. ^The P argument is a pointer to the
-** [prepared statement]. ^The X argument is a pointer to a string which
-** is the unexpanded SQL text of the prepared statement or an SQL comment 
-** that indicates the invocation of a trigger.  ^The callback can compute
-** the same text that would have been returned by the legacy [tdsqlite3_trace()]
-** interface by using the X argument when X begins with "--" and invoking
-** [tdsqlite3_expanded_sql(P)] otherwise.
-**
-** [[SQLITE_TRACE_PROFILE]] <dt>SQLITE_TRACE_PROFILE</dt>
-** <dd>^An SQLITE_TRACE_PROFILE callback provides approximately the same
-** information as is provided by the [tdsqlite3_profile()] callback.
-** ^The P argument is a pointer to the [prepared statement] and the
-** X argument points to a 64-bit integer which is the estimated of
-** the number of nanosecond that the prepared statement took to run.
-** ^The SQLITE_TRACE_PROFILE callback is invoked when the statement finishes.
-**
-** [[SQLITE_TRACE_ROW]] <dt>SQLITE_TRACE_ROW</dt>
-** <dd>^An SQLITE_TRACE_ROW callback is invoked whenever a prepared
-** statement generates a single row of result.  
-** ^The P argument is a pointer to the [prepared statement] and the
-** X argument is unused.
-**
-** [[SQLITE_TRACE_CLOSE]] <dt>SQLITE_TRACE_CLOSE</dt>
-** <dd>^An SQLITE_TRACE_CLOSE callback is invoked when a database
-** connection closes.
-** ^The P argument is a pointer to the [database connection] object
-** and the X argument is unused.
-** </dl>
-*/
-#define SQLITE_TRACE_STMT       0x01
-#define SQLITE_TRACE_PROFILE    0x02
-#define SQLITE_TRACE_ROW        0x04
-#define SQLITE_TRACE_CLOSE      0x08
-
-/*
-** CAPI3REF: SQL Trace Hook
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_trace_v2(D,M,X,P) interface registers a trace callback
-** function X against [database connection] D, using property mask M
-** and context pointer P.  ^If the X callback is
-** NULL or if the M mask is zero, then tracing is disabled.  The
-** M argument should be the bitwise OR-ed combination of
-** zero or more [SQLITE_TRACE] constants.
-**
-** ^Each call to either tdsqlite3_trace() or tdsqlite3_trace_v2() overrides 
-** (cancels) any prior calls to tdsqlite3_trace() or tdsqlite3_trace_v2().
-**
-** ^The X callback is invoked whenever any of the events identified by 
-** mask M occur.  ^The integer return value from the callback is currently
-** ignored, though this may change in future releases.  Callback
-** implementations should return zero to ensure future compatibility.
-**
-** ^A trace callback is invoked with four arguments: callback(T,C,P,X).
-** ^The T argument is one of the [SQLITE_TRACE]
-** constants to indicate why the callback was invoked.
-** ^The C argument is a copy of the context pointer.
-** The P and X arguments are pointers whose meanings depend on T.
-**
-** The tdsqlite3_trace_v2() interface is intended to replace the legacy
-** interfaces [tdsqlite3_trace()] and [tdsqlite3_profile()], both of which
-** are deprecated.
-*/
-SQLITE_API int tdsqlite3_trace_v2(
-  tdsqlite3*,
-  unsigned uMask,
-  int(*xCallback)(unsigned,void*,void*,void*),
-  void *pCtx
-);
-
-/*
-** CAPI3REF: Query Progress Callbacks
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_progress_handler(D,N,X,P) interface causes the callback
-** function X to be invoked periodically during long running calls to
-** [tdsqlite3_exec()], [tdsqlite3_step()] and [tdsqlite3_get_table()] for
-** database connection D.  An example use for this
-** interface is to keep a GUI updated during a large query.
-**
-** ^The parameter P is passed through as the only parameter to the 
-** callback function X.  ^The parameter N is the approximate number of 
-** [virtual machine instructions] that are evaluated between successive
-** invocations of the callback X.  ^If N is less than one then the progress
-** handler is disabled.
-**
-** ^Only a single progress handler may be defined at one time per
-** [database connection]; setting a new progress handler cancels the
-** old one.  ^Setting parameter X to NULL disables the progress handler.
-** ^The progress handler is also disabled by setting N to a value less
-** than 1.
-**
-** ^If the progress callback returns non-zero, the operation is
-** interrupted.  This feature can be used to implement a
-** "Cancel" button on a GUI progress dialog box.
-**
-** The progress handler callback must not do anything that will modify
-** the database connection that invoked the progress handler.
-** Note that [tdsqlite3_prepare_v2()] and [tdsqlite3_step()] both modify their
-** database connections for the meaning of "modify" in this paragraph.
-**
-*/
-SQLITE_API void tdsqlite3_progress_handler(tdsqlite3*, int, int(*)(void*), void*);
-
-/*
-** CAPI3REF: Opening A New Database Connection
-** CONSTRUCTOR: tdsqlite3
-**
-** ^These routines open an SQLite database file as specified by the 
-** filename argument. ^The filename argument is interpreted as UTF-8 for
-** tdsqlite3_open() and tdsqlite3_open_v2() and as UTF-16 in the native byte
-** order for tdsqlite3_open16(). ^(A [database connection] handle is usually
-** returned in *ppDb, even if an error occurs.  The only exception is that
-** if SQLite is unable to allocate memory to hold the [tdsqlite3] object,
-** a NULL will be written into *ppDb instead of a pointer to the [tdsqlite3]
-** object.)^ ^(If the database is opened (and/or created) successfully, then
-** [SQLITE_OK] is returned.  Otherwise an [error code] is returned.)^ ^The
-** [tdsqlite3_errmsg()] or [tdsqlite3_errmsg16()] routines can be used to obtain
-** an English language description of the error following a failure of any
-** of the tdsqlite3_open() routines.
-**
-** ^The default encoding will be UTF-8 for databases created using
-** tdsqlite3_open() or tdsqlite3_open_v2().  ^The default encoding for databases
-** created using tdsqlite3_open16() will be UTF-16 in the native byte order.
-**
-** Whether or not an error occurs when it is opened, resources
-** associated with the [database connection] handle should be released by
-** passing it to [tdsqlite3_close()] when it is no longer required.
-**
-** The tdsqlite3_open_v2() interface works like tdsqlite3_open()
-** except that it accepts two additional parameters for additional control
-** over the new database connection.  ^(The flags parameter to
-** tdsqlite3_open_v2() must include, at a minimum, one of the following
-** three flag combinations:)^
-**
-** <dl>
-** ^(<dt>[SQLITE_OPEN_READONLY]</dt>
-** <dd>The database is opened in read-only mode.  If the database does not
-** already exist, an error is returned.</dd>)^
-**
-** ^(<dt>[SQLITE_OPEN_READWRITE]</dt>
-** <dd>The database is opened for reading and writing if possible, or reading
-** only if the file is write protected by the operating system.  In either
-** case the database must already exist, otherwise an error is returned.</dd>)^
-**
-** ^(<dt>[SQLITE_OPEN_READWRITE] | [SQLITE_OPEN_CREATE]</dt>
-** <dd>The database is opened for reading and writing, and is created if
-** it does not already exist. This is the behavior that is always used for
-** tdsqlite3_open() and tdsqlite3_open16().</dd>)^
-** </dl>
-**
-** In addition to the required flags, the following optional flags are
-** also supported:
-**
-** <dl>
-** ^(<dt>[SQLITE_OPEN_URI]</dt>
-** <dd>The filename can be interpreted as a URI if this flag is set.</dd>)^
-**
-** ^(<dt>[SQLITE_OPEN_MEMORY]</dt>
-** <dd>The database will be opened as an in-memory database.  The database
-** is named by the "filename" argument for the purposes of cache-sharing,
-** if shared cache mode is enabled, but the "filename" is otherwise ignored.
-** </dd>)^
-**
-** ^(<dt>[SQLITE_OPEN_NOMUTEX]</dt>
-** <dd>The new database connection will use the "multi-thread"
-** [threading mode].)^  This means that separate threads are allowed
-** to use SQLite at the same time, as long as each thread is using
-** a different [database connection].
-**
-** ^(<dt>[SQLITE_OPEN_FULLMUTEX]</dt>
-** <dd>The new database connection will use the "serialized"
-** [threading mode].)^  This means the multiple threads can safely
-** attempt to use the same database connection at the same time.
-** (Mutexes will block any actual concurrency, but in this mode
-** there is no harm in trying.)
-**
-** ^(<dt>[SQLITE_OPEN_SHAREDCACHE]</dt>
-** <dd>The database is opened [shared cache] enabled, overriding
-** the default shared cache setting provided by
-** [tdsqlite3_enable_shared_cache()].)^
-**
-** ^(<dt>[SQLITE_OPEN_PRIVATECACHE]</dt>
-** <dd>The database is opened [shared cache] disabled, overriding
-** the default shared cache setting provided by
-** [tdsqlite3_enable_shared_cache()].)^
-**
-** [[OPEN_NOFOLLOW]] ^(<dt>[SQLITE_OPEN_NOFOLLOW]</dt>
-** <dd>The database filename is not allowed to be a symbolic link</dd>
-** </dl>)^
-**
-** If the 3rd parameter to tdsqlite3_open_v2() is not one of the
-** required combinations shown above optionally combined with other
-** [SQLITE_OPEN_READONLY | SQLITE_OPEN_* bits]
-** then the behavior is undefined.
-**
-** ^The fourth parameter to tdsqlite3_open_v2() is the name of the
-** [tdsqlite3_vfs] object that defines the operating system interface that
-** the new database connection should use.  ^If the fourth parameter is
-** a NULL pointer then the default [tdsqlite3_vfs] object is used.
-**
-** ^If the filename is ":memory:", then a private, temporary in-memory database
-** is created for the connection.  ^This in-memory database will vanish when
-** the database connection is closed.  Future versions of SQLite might
-** make use of additional special filenames that begin with the ":" character.
-** It is recommended that when a database filename actually does begin with
-** a ":" character you should prefix the filename with a pathname such as
-** "./" to avoid ambiguity.
-**
-** ^If the filename is an empty string, then a private, temporary
-** on-disk database will be created.  ^This private database will be
-** automatically deleted as soon as the database connection is closed.
-**
-** [[URI filenames in tdsqlite3_open()]] <h3>URI Filenames</h3>
-**
-** ^If [URI filename] interpretation is enabled, and the filename argument
-** begins with "file:", then the filename is interpreted as a URI. ^URI
-** filename interpretation is enabled if the [SQLITE_OPEN_URI] flag is
-** set in the third argument to tdsqlite3_open_v2(), or if it has
-** been enabled globally using the [SQLITE_CONFIG_URI] option with the
-** [tdsqlite3_config()] method or by the [SQLITE_USE_URI] compile-time option.
-** URI filename interpretation is turned off
-** by default, but future releases of SQLite might enable URI filename
-** interpretation by default.  See "[URI filenames]" for additional
-** information.
-**
-** URI filenames are parsed according to RFC 3986. ^If the URI contains an
-** authority, then it must be either an empty string or the string 
-** "localhost". ^If the authority is not an empty string or "localhost", an 
-** error is returned to the caller. ^The fragment component of a URI, if 
-** present, is ignored.
-**
-** ^SQLite uses the path component of the URI as the name of the disk file
-** which contains the database. ^If the path begins with a '/' character, 
-** then it is interpreted as an absolute path. ^If the path does not begin 
-** with a '/' (meaning that the authority section is omitted from the URI)
-** then the path is interpreted as a relative path. 
-** ^(On windows, the first component of an absolute path 
-** is a drive specification (e.g. "C:").)^
-**
-** [[core URI query parameters]]
-** The query component of a URI may contain parameters that are interpreted
-** either by SQLite itself, or by a [VFS | custom VFS implementation].
-** SQLite and its built-in [VFSes] interpret the
-** following query parameters:
-**
-** <ul>
-**   <li> <b>vfs</b>: ^The "vfs" parameter may be used to specify the name of
-**     a VFS object that provides the operating system interface that should
-**     be used to access the database file on disk. ^If this option is set to
-**     an empty string the default VFS object is used. ^Specifying an unknown
-**     VFS is an error. ^If tdsqlite3_open_v2() is used and the vfs option is
-**     present, then the VFS specified by the option takes precedence over
-**     the value passed as the fourth parameter to tdsqlite3_open_v2().
-**
-**   <li> <b>mode</b>: ^(The mode parameter may be set to either "ro", "rw",
-**     "rwc", or "memory". Attempting to set it to any other value is
-**     an error)^. 
-**     ^If "ro" is specified, then the database is opened for read-only 
-**     access, just as if the [SQLITE_OPEN_READONLY] flag had been set in the 
-**     third argument to tdsqlite3_open_v2(). ^If the mode option is set to 
-**     "rw", then the database is opened for read-write (but not create) 
-**     access, as if SQLITE_OPEN_READWRITE (but not SQLITE_OPEN_CREATE) had 
-**     been set. ^Value "rwc" is equivalent to setting both 
-**     SQLITE_OPEN_READWRITE and SQLITE_OPEN_CREATE.  ^If the mode option is
-**     set to "memory" then a pure [in-memory database] that never reads
-**     or writes from disk is used. ^It is an error to specify a value for
-**     the mode parameter that is less restrictive than that specified by
-**     the flags passed in the third parameter to tdsqlite3_open_v2().
-**
-**   <li> <b>cache</b>: ^The cache parameter may be set to either "shared" or
-**     "private". ^Setting it to "shared" is equivalent to setting the
-**     SQLITE_OPEN_SHAREDCACHE bit in the flags argument passed to
-**     tdsqlite3_open_v2(). ^Setting the cache parameter to "private" is 
-**     equivalent to setting the SQLITE_OPEN_PRIVATECACHE bit.
-**     ^If tdsqlite3_open_v2() is used and the "cache" parameter is present in
-**     a URI filename, its value overrides any behavior requested by setting
-**     SQLITE_OPEN_PRIVATECACHE or SQLITE_OPEN_SHAREDCACHE flag.
-**
-**  <li> <b>psow</b>: ^The psow parameter indicates whether or not the
-**     [powersafe overwrite] property does or does not apply to the
-**     storage media on which the database file resides.
-**
-**  <li> <b>nolock</b>: ^The nolock parameter is a boolean query parameter
-**     which if set disables file locking in rollback journal modes.  This
-**     is useful for accessing a database on a filesystem that does not
-**     support locking.  Caution:  Database corruption might result if two
-**     or more processes write to the same database and any one of those
-**     processes uses nolock=1.
-**
-**  <li> <b>immutable</b>: ^The immutable parameter is a boolean query
-**     parameter that indicates that the database file is stored on
-**     read-only media.  ^When immutable is set, SQLite assumes that the
-**     database file cannot be changed, even by a process with higher
-**     privilege, and so the database is opened read-only and all locking
-**     and change detection is disabled.  Caution: Setting the immutable
-**     property on a database file that does in fact change can result
-**     in incorrect query results and/or [SQLITE_CORRUPT] errors.
-**     See also: [SQLITE_IOCAP_IMMUTABLE].
-**       
-** </ul>
-**
-** ^Specifying an unknown parameter in the query component of a URI is not an
-** error.  Future versions of SQLite might understand additional query
-** parameters.  See "[query parameters with special meaning to SQLite]" for
-** additional information.
-**
-** [[URI filename examples]] <h3>URI filename examples</h3>
-**
-** <table border="1" align=center cellpadding=5>
-** <tr><th> URI filenames <th> Results
-** <tr><td> file:data.db <td> 
-**          Open the file "data.db" in the current directory.
-** <tr><td> file:/home/fred/data.db<br>
-**          file:///home/fred/data.db <br> 
-**          file://localhost/home/fred/data.db <br> <td> 
-**          Open the database file "/home/fred/data.db".
-** <tr><td> file://darkstar/home/fred/data.db <td> 
-**          An error. "darkstar" is not a recognized authority.
-** <tr><td style="white-space:nowrap"> 
-**          file:///C:/Documents%20and%20Settings/fred/Desktop/data.db
-**     <td> Windows only: Open the file "data.db" on fred's desktop on drive
-**          C:. Note that the %20 escaping in this example is not strictly 
-**          necessary - space characters can be used literally
-**          in URI filenames.
-** <tr><td> file:data.db?mode=ro&cache=private <td> 
-**          Open file "data.db" in the current directory for read-only access.
-**          Regardless of whether or not shared-cache mode is enabled by
-**          default, use a private cache.
-** <tr><td> file:/home/fred/data.db?vfs=unix-dotfile <td>
-**          Open file "/home/fred/data.db". Use the special VFS "unix-dotfile"
-**          that uses dot-files in place of posix advisory locking.
-** <tr><td> file:data.db?mode=readonly <td> 
-**          An error. "readonly" is not a valid option for the "mode" parameter.
-** </table>
-**
-** ^URI hexadecimal escape sequences (%HH) are supported within the path and
-** query components of a URI. A hexadecimal escape sequence consists of a
-** percent sign - "%" - followed by exactly two hexadecimal digits 
-** specifying an octet value. ^Before the path or query components of a
-** URI filename are interpreted, they are encoded using UTF-8 and all 
-** hexadecimal escape sequences replaced by a single byte containing the
-** corresponding octet. If this process generates an invalid UTF-8 encoding,
-** the results are undefined.
-**
-** <b>Note to Windows users:</b>  The encoding used for the filename argument
-** of tdsqlite3_open() and tdsqlite3_open_v2() must be UTF-8, not whatever
-** codepage is currently defined.  Filenames containing international
-** characters must be converted to UTF-8 prior to passing them into
-** tdsqlite3_open() or tdsqlite3_open_v2().
-**
-** <b>Note to Windows Runtime users:</b>  The temporary directory must be set
-** prior to calling tdsqlite3_open() or tdsqlite3_open_v2().  Otherwise, various
-** features that require the use of temporary files may fail.
-**
-** See also: [tdsqlite3_temp_directory]
-*/
-SQLITE_API int tdsqlite3_open(
-  const char *filename,   /* Database filename (UTF-8) */
-  tdsqlite3 **ppDb          /* OUT: SQLite db handle */
-);
-SQLITE_API int tdsqlite3_open16(
-  const void *filename,   /* Database filename (UTF-16) */
-  tdsqlite3 **ppDb          /* OUT: SQLite db handle */
-);
-SQLITE_API int tdsqlite3_open_v2(
-  const char *filename,   /* Database filename (UTF-8) */
-  tdsqlite3 **ppDb,         /* OUT: SQLite db handle */
-  int flags,              /* Flags */
-  const char *zVfs        /* Name of VFS module to use */
-);
-
-/*
-** CAPI3REF: Obtain Values For URI Parameters
-**
-** These are utility routines, useful to [VFS|custom VFS implementations],
-** that check if a database file was a URI that contained a specific query 
-** parameter, and if so obtains the value of that query parameter.
-**
-** If F is the database filename pointer passed into the xOpen() method of 
-** a VFS implementation or it is the return value of [tdsqlite3_db_filename()]
-** and if P is the name of the query parameter, then
-** tdsqlite3_uri_parameter(F,P) returns the value of the P
-** parameter if it exists or a NULL pointer if P does not appear as a 
-** query parameter on F.  If P is a query parameter of F and it
-** has no explicit value, then tdsqlite3_uri_parameter(F,P) returns
-** a pointer to an empty string.
-**
-** The tdsqlite3_uri_boolean(F,P,B) routine assumes that P is a boolean
-** parameter and returns true (1) or false (0) according to the value
-** of P.  The tdsqlite3_uri_boolean(F,P,B) routine returns true (1) if the
-** value of query parameter P is one of "yes", "true", or "on" in any
-** case or if the value begins with a non-zero number.  The 
-** tdsqlite3_uri_boolean(F,P,B) routines returns false (0) if the value of
-** query parameter P is one of "no", "false", or "off" in any case or
-** if the value begins with a numeric zero.  If P is not a query
-** parameter on F or if the value of P does not match any of the
-** above, then tdsqlite3_uri_boolean(F,P,B) returns (B!=0).
-**
-** The tdsqlite3_uri_int64(F,P,D) routine converts the value of P into a
-** 64-bit signed integer and returns that integer, or D if P does not
-** exist.  If the value of P is something other than an integer, then
-** zero is returned.
-**
-** The tdsqlite3_uri_key(F,N) returns a pointer to the name (not
-** the value) of the N-th query parameter for filename F, or a NULL
-** pointer if N is less than zero or greater than the number of query
-** parameters minus 1.  The N value is zero-based so N should be 0 to obtain
-** the name of the first query parameter, 1 for the second parameter, and
-** so forth.
-** 
-** If F is a NULL pointer, then tdsqlite3_uri_parameter(F,P) returns NULL and
-** tdsqlite3_uri_boolean(F,P,B) returns B.  If F is not a NULL pointer and
-** is not a database file pathname pointer that the SQLite core passed
-** into the xOpen VFS method, then the behavior of this routine is undefined
-** and probably undesirable.
-**
-** Beginning with SQLite [version 3.31.0] ([dateof:3.31.0]) the input F
-** parameter can also be the name of a rollback journal file or WAL file
-** in addition to the main database file.  Prior to version 3.31.0, these
-** routines would only work if F was the name of the main database file.
-** When the F parameter is the name of the rollback journal or WAL file,
-** it has access to all the same query parameters as were found on the
-** main database file.
-**
-** See the [URI filename] documentation for additional information.
-*/
-SQLITE_API const char *tdsqlite3_uri_parameter(const char *zFilename, const char *zParam);
-SQLITE_API int tdsqlite3_uri_boolean(const char *zFile, const char *zParam, int bDefault);
-SQLITE_API tdsqlite3_int64 tdsqlite3_uri_int64(const char*, const char*, tdsqlite3_int64);
-SQLITE_API const char *tdsqlite3_uri_key(const char *zFilename, int N);
-
-/*
-** CAPI3REF:  Translate filenames
-**
-** These routines are available to [VFS|custom VFS implementations] for
-** translating filenames between the main database file, the journal file,
-** and the WAL file.
-**
-** If F is the name of an sqlite database file, journal file, or WAL file
-** passed by the SQLite core into the VFS, then tdsqlite3_filename_database(F)
-** returns the name of the corresponding database file.
-**
-** If F is the name of an sqlite database file, journal file, or WAL file
-** passed by the SQLite core into the VFS, or if F is a database filename
-** obtained from [tdsqlite3_db_filename()], then tdsqlite3_filename_journal(F)
-** returns the name of the corresponding rollback journal file.
-**
-** If F is the name of an sqlite database file, journal file, or WAL file
-** that was passed by the SQLite core into the VFS, or if F is a database
-** filename obtained from [tdsqlite3_db_filename()], then
-** tdsqlite3_filename_wal(F) returns the name of the corresponding
-** WAL file.
-**
-** In all of the above, if F is not the name of a database, journal or WAL
-** filename passed into the VFS from the SQLite core and F is not the
-** return value from [tdsqlite3_db_filename()], then the result is
-** undefined and is likely a memory access violation.
-*/
-SQLITE_API const char *tdsqlite3_filename_database(const char*);
-SQLITE_API const char *tdsqlite3_filename_journal(const char*);
-SQLITE_API const char *tdsqlite3_filename_wal(const char*);
-
-
-/*
-** CAPI3REF: Error Codes And Messages
-** METHOD: tdsqlite3
-**
-** ^If the most recent tdsqlite3_* API call associated with 
-** [database connection] D failed, then the tdsqlite3_errcode(D) interface
-** returns the numeric [result code] or [extended result code] for that
-** API call.
-** ^The tdsqlite3_extended_errcode()
-** interface is the same except that it always returns the 
-** [extended result code] even when extended result codes are
-** disabled.
-**
-** The values returned by tdsqlite3_errcode() and/or
-** tdsqlite3_extended_errcode() might change with each API call.
-** Except, there are some interfaces that are guaranteed to never
-** change the value of the error code.  The error-code preserving
-** interfaces are:
-**
-** <ul>
-** <li> tdsqlite3_errcode()
-** <li> tdsqlite3_extended_errcode()
-** <li> tdsqlite3_errmsg()
-** <li> tdsqlite3_errmsg16()
-** </ul>
-**
-** ^The tdsqlite3_errmsg() and tdsqlite3_errmsg16() return English-language
-** text that describes the error, as either UTF-8 or UTF-16 respectively.
-** ^(Memory to hold the error message string is managed internally.
-** The application does not need to worry about freeing the result.
-** However, the error string might be overwritten or deallocated by
-** subsequent calls to other SQLite interface functions.)^
-**
-** ^The tdsqlite3_errstr() interface returns the English-language text
-** that describes the [result code], as UTF-8.
-** ^(Memory to hold the error message string is managed internally
-** and must not be freed by the application)^.
-**
-** When the serialized [threading mode] is in use, it might be the
-** case that a second error occurs on a separate thread in between
-** the time of the first error and the call to these interfaces.
-** When that happens, the second error will be reported since these
-** interfaces always report the most recent result.  To avoid
-** this, each thread can obtain exclusive use of the [database connection] D
-** by invoking [tdsqlite3_mutex_enter]([tdsqlite3_db_mutex](D)) before beginning
-** to use D and invoking [tdsqlite3_mutex_leave]([tdsqlite3_db_mutex](D)) after
-** all calls to the interfaces listed here are completed.
-**
-** If an interface fails with SQLITE_MISUSE, that means the interface
-** was invoked incorrectly by the application.  In that case, the
-** error code and message may or may not be set.
-*/
-SQLITE_API int tdsqlite3_errcode(tdsqlite3 *db);
-SQLITE_API int tdsqlite3_extended_errcode(tdsqlite3 *db);
-SQLITE_API const char *tdsqlite3_errmsg(tdsqlite3*);
-SQLITE_API const void *tdsqlite3_errmsg16(tdsqlite3*);
-SQLITE_API const char *tdsqlite3_errstr(int);
-
-/*
-** CAPI3REF: Prepared Statement Object
-** KEYWORDS: {prepared statement} {prepared statements}
-**
-** An instance of this object represents a single SQL statement that
-** has been compiled into binary form and is ready to be evaluated.
-**
-** Think of each SQL statement as a separate computer program.  The
-** original SQL text is source code.  A prepared statement object 
-** is the compiled object code.  All SQL must be converted into a
-** prepared statement before it can be run.
-**
-** The life-cycle of a prepared statement object usually goes like this:
-**
-** <ol>
-** <li> Create the prepared statement object using [tdsqlite3_prepare_v2()].
-** <li> Bind values to [parameters] using the tdsqlite3_bind_*()
-**      interfaces.
-** <li> Run the SQL by calling [tdsqlite3_step()] one or more times.
-** <li> Reset the prepared statement using [tdsqlite3_reset()] then go back
-**      to step 2.  Do this zero or more times.
-** <li> Destroy the object using [tdsqlite3_finalize()].
-** </ol>
-*/
-typedef struct tdsqlite3_stmt tdsqlite3_stmt;
-
-/*
-** CAPI3REF: Run-time Limits
-** METHOD: tdsqlite3
-**
-** ^(This interface allows the size of various constructs to be limited
-** on a connection by connection basis.  The first parameter is the
-** [database connection] whose limit is to be set or queried.  The
-** second parameter is one of the [limit categories] that define a
-** class of constructs to be size limited.  The third parameter is the
-** new limit for that construct.)^
-**
-** ^If the new limit is a negative number, the limit is unchanged.
-** ^(For each limit category SQLITE_LIMIT_<i>NAME</i> there is a 
-** [limits | hard upper bound]
-** set at compile-time by a C preprocessor macro called
-** [limits | SQLITE_MAX_<i>NAME</i>].
-** (The "_LIMIT_" in the name is changed to "_MAX_".))^
-** ^Attempts to increase a limit above its hard upper bound are
-** silently truncated to the hard upper bound.
-**
-** ^Regardless of whether or not the limit was changed, the 
-** [tdsqlite3_limit()] interface returns the prior value of the limit.
-** ^Hence, to find the current value of a limit without changing it,
-** simply invoke this interface with the third parameter set to -1.
-**
-** Run-time limits are intended for use in applications that manage
-** both their own internal database and also databases that are controlled
-** by untrusted external sources.  An example application might be a
-** web browser that has its own databases for storing history and
-** separate databases controlled by JavaScript applications downloaded
-** off the Internet.  The internal databases can be given the
-** large, default limits.  Databases managed by external sources can
-** be given much smaller limits designed to prevent a denial of service
-** attack.  Developers might also want to use the [tdsqlite3_set_authorizer()]
-** interface to further control untrusted SQL.  The size of the database
-** created by an untrusted script can be contained using the
-** [max_page_count] [PRAGMA].
-**
-** New run-time limit categories may be added in future releases.
-*/
-SQLITE_API int tdsqlite3_limit(tdsqlite3*, int id, int newVal);
-
-/*
-** CAPI3REF: Run-Time Limit Categories
-** KEYWORDS: {limit category} {*limit categories}
-**
-** These constants define various performance limits
-** that can be lowered at run-time using [tdsqlite3_limit()].
-** The synopsis of the meanings of the various limits is shown below.
-** Additional information is available at [limits | Limits in SQLite].
-**
-** <dl>
-** [[SQLITE_LIMIT_LENGTH]] ^(<dt>SQLITE_LIMIT_LENGTH</dt>
-** <dd>The maximum size of any string or BLOB or table row, in bytes.<dd>)^
-**
-** [[SQLITE_LIMIT_SQL_LENGTH]] ^(<dt>SQLITE_LIMIT_SQL_LENGTH</dt>
-** <dd>The maximum length of an SQL statement, in bytes.</dd>)^
-**
-** [[SQLITE_LIMIT_COLUMN]] ^(<dt>SQLITE_LIMIT_COLUMN</dt>
-** <dd>The maximum number of columns in a table definition or in the
-** result set of a [SELECT] or the maximum number of columns in an index
-** or in an ORDER BY or GROUP BY clause.</dd>)^
-**
-** [[SQLITE_LIMIT_EXPR_DEPTH]] ^(<dt>SQLITE_LIMIT_EXPR_DEPTH</dt>
-** <dd>The maximum depth of the parse tree on any expression.</dd>)^
-**
-** [[SQLITE_LIMIT_COMPOUND_SELECT]] ^(<dt>SQLITE_LIMIT_COMPOUND_SELECT</dt>
-** <dd>The maximum number of terms in a compound SELECT statement.</dd>)^
-**
-** [[SQLITE_LIMIT_VDBE_OP]] ^(<dt>SQLITE_LIMIT_VDBE_OP</dt>
-** <dd>The maximum number of instructions in a virtual machine program
-** used to implement an SQL statement.  If [tdsqlite3_prepare_v2()] or
-** the equivalent tries to allocate space for more than this many opcodes
-** in a single prepared statement, an SQLITE_NOMEM error is returned.</dd>)^
-**
-** [[SQLITE_LIMIT_FUNCTION_ARG]] ^(<dt>SQLITE_LIMIT_FUNCTION_ARG</dt>
-** <dd>The maximum number of arguments on a function.</dd>)^
-**
-** [[SQLITE_LIMIT_ATTACHED]] ^(<dt>SQLITE_LIMIT_ATTACHED</dt>
-** <dd>The maximum number of [ATTACH | attached databases].)^</dd>
-**
-** [[SQLITE_LIMIT_LIKE_PATTERN_LENGTH]]
-** ^(<dt>SQLITE_LIMIT_LIKE_PATTERN_LENGTH</dt>
-** <dd>The maximum length of the pattern argument to the [LIKE] or
-** [GLOB] operators.</dd>)^
-**
-** [[SQLITE_LIMIT_VARIABLE_NUMBER]]
-** ^(<dt>SQLITE_LIMIT_VARIABLE_NUMBER</dt>
-** <dd>The maximum index number of any [parameter] in an SQL statement.)^
-**
-** [[SQLITE_LIMIT_TRIGGER_DEPTH]] ^(<dt>SQLITE_LIMIT_TRIGGER_DEPTH</dt>
-** <dd>The maximum depth of recursion for triggers.</dd>)^
-**
-** [[SQLITE_LIMIT_WORKER_THREADS]] ^(<dt>SQLITE_LIMIT_WORKER_THREADS</dt>
-** <dd>The maximum number of auxiliary worker threads that a single
-** [prepared statement] may start.</dd>)^
-** </dl>
-*/
-#define SQLITE_LIMIT_LENGTH                    0
-#define SQLITE_LIMIT_SQL_LENGTH                1
-#define SQLITE_LIMIT_COLUMN                    2
-#define SQLITE_LIMIT_EXPR_DEPTH                3
-#define SQLITE_LIMIT_COMPOUND_SELECT           4
-#define SQLITE_LIMIT_VDBE_OP                   5
-#define SQLITE_LIMIT_FUNCTION_ARG              6
-#define SQLITE_LIMIT_ATTACHED                  7
-#define SQLITE_LIMIT_LIKE_PATTERN_LENGTH       8
-#define SQLITE_LIMIT_VARIABLE_NUMBER           9
-#define SQLITE_LIMIT_TRIGGER_DEPTH            10
-#define SQLITE_LIMIT_WORKER_THREADS           11
-
-/*
-** CAPI3REF: Prepare Flags
-**
-** These constants define various flags that can be passed into
-** "prepFlags" parameter of the [tdsqlite3_prepare_v3()] and
-** [tdsqlite3_prepare16_v3()] interfaces.
-**
-** New flags may be added in future releases of SQLite.
-**
-** <dl>
-** [[SQLITE_PREPARE_PERSISTENT]] ^(<dt>SQLITE_PREPARE_PERSISTENT</dt>
-** <dd>The SQLITE_PREPARE_PERSISTENT flag is a hint to the query planner
-** that the prepared statement will be retained for a long time and
-** probably reused many times.)^ ^Without this flag, [tdsqlite3_prepare_v3()]
-** and [tdsqlite3_prepare16_v3()] assume that the prepared statement will 
-** be used just once or at most a few times and then destroyed using
-** [tdsqlite3_finalize()] relatively soon. The current implementation acts
-** on this hint by avoiding the use of [lookaside memory] so as not to
-** deplete the limited store of lookaside memory. Future versions of
-** SQLite may act on this hint differently.
-**
-** [[SQLITE_PREPARE_NORMALIZE]] <dt>SQLITE_PREPARE_NORMALIZE</dt>
-** <dd>The SQLITE_PREPARE_NORMALIZE flag is a no-op. This flag used
-** to be required for any prepared statement that wanted to use the
-** [tdsqlite3_normalized_sql()] interface.  However, the
-** [tdsqlite3_normalized_sql()] interface is now available to all
-** prepared statements, regardless of whether or not they use this
-** flag.
-**
-** [[SQLITE_PREPARE_NO_VTAB]] <dt>SQLITE_PREPARE_NO_VTAB</dt>
-** <dd>The SQLITE_PREPARE_NO_VTAB flag causes the SQL compiler
-** to return an error (error code SQLITE_ERROR) if the statement uses
-** any virtual tables.
-** </dl>
-*/
-#define SQLITE_PREPARE_PERSISTENT              0x01
-#define SQLITE_PREPARE_NORMALIZE               0x02
-#define SQLITE_PREPARE_NO_VTAB                 0x04
-
-/*
-** CAPI3REF: Compiling An SQL Statement
-** KEYWORDS: {SQL statement compiler}
-** METHOD: tdsqlite3
-** CONSTRUCTOR: tdsqlite3_stmt
-**
-** To execute an SQL statement, it must first be compiled into a byte-code
-** program using one of these routines.  Or, in other words, these routines
-** are constructors for the [prepared statement] object.
-**
-** The preferred routine to use is [tdsqlite3_prepare_v2()].  The
-** [tdsqlite3_prepare()] interface is legacy and should be avoided.
-** [tdsqlite3_prepare_v3()] has an extra "prepFlags" option that is used
-** for special purposes.
-**
-** The use of the UTF-8 interfaces is preferred, as SQLite currently
-** does all parsing using UTF-8.  The UTF-16 interfaces are provided
-** as a convenience.  The UTF-16 interfaces work by converting the
-** input text into UTF-8, then invoking the corresponding UTF-8 interface.
-**
-** The first argument, "db", is a [database connection] obtained from a
-** prior successful call to [tdsqlite3_open()], [tdsqlite3_open_v2()] or
-** [tdsqlite3_open16()].  The database connection must not have been closed.
-**
-** The second argument, "zSql", is the statement to be compiled, encoded
-** as either UTF-8 or UTF-16.  The tdsqlite3_prepare(), tdsqlite3_prepare_v2(),
-** and tdsqlite3_prepare_v3()
-** interfaces use UTF-8, and tdsqlite3_prepare16(), tdsqlite3_prepare16_v2(),
-** and tdsqlite3_prepare16_v3() use UTF-16.
-**
-** ^If the nByte argument is negative, then zSql is read up to the
-** first zero terminator. ^If nByte is positive, then it is the
-** number of bytes read from zSql.  ^If nByte is zero, then no prepared
-** statement is generated.
-** If the caller knows that the supplied string is nul-terminated, then
-** there is a small performance advantage to passing an nByte parameter that
-** is the number of bytes in the input string <i>including</i>
-** the nul-terminator.
-**
-** ^If pzTail is not NULL then *pzTail is made to point to the first byte
-** past the end of the first SQL statement in zSql.  These routines only
-** compile the first statement in zSql, so *pzTail is left pointing to
-** what remains uncompiled.
-**
-** ^*ppStmt is left pointing to a compiled [prepared statement] that can be
-** executed using [tdsqlite3_step()].  ^If there is an error, *ppStmt is set
-** to NULL.  ^If the input text contains no SQL (if the input is an empty
-** string or a comment) then *ppStmt is set to NULL.
-** The calling procedure is responsible for deleting the compiled
-** SQL statement using [tdsqlite3_finalize()] after it has finished with it.
-** ppStmt may not be NULL.
-**
-** ^On success, the tdsqlite3_prepare() family of routines return [SQLITE_OK];
-** otherwise an [error code] is returned.
-**
-** The tdsqlite3_prepare_v2(), tdsqlite3_prepare_v3(), tdsqlite3_prepare16_v2(),
-** and tdsqlite3_prepare16_v3() interfaces are recommended for all new programs.
-** The older interfaces (tdsqlite3_prepare() and tdsqlite3_prepare16())
-** are retained for backwards compatibility, but their use is discouraged.
-** ^In the "vX" interfaces, the prepared statement
-** that is returned (the [tdsqlite3_stmt] object) contains a copy of the
-** original SQL text. This causes the [tdsqlite3_step()] interface to
-** behave differently in three ways:
-**
-** <ol>
-** <li>
-** ^If the database schema changes, instead of returning [SQLITE_SCHEMA] as it
-** always used to do, [tdsqlite3_step()] will automatically recompile the SQL
-** statement and try to run it again. As many as [SQLITE_MAX_SCHEMA_RETRY]
-** retries will occur before tdsqlite3_step() gives up and returns an error.
-** </li>
-**
-** <li>
-** ^When an error occurs, [tdsqlite3_step()] will return one of the detailed
-** [error codes] or [extended error codes].  ^The legacy behavior was that
-** [tdsqlite3_step()] would only return a generic [SQLITE_ERROR] result code
-** and the application would have to make a second call to [tdsqlite3_reset()]
-** in order to find the underlying cause of the problem. With the "v2" prepare
-** interfaces, the underlying reason for the error is returned immediately.
-** </li>
-**
-** <li>
-** ^If the specific value bound to a [parameter | host parameter] in the 
-** WHERE clause might influence the choice of query plan for a statement,
-** then the statement will be automatically recompiled, as if there had been 
-** a schema change, on the first [tdsqlite3_step()] call following any change
-** to the [tdsqlite3_bind_text | bindings] of that [parameter]. 
-** ^The specific value of a WHERE-clause [parameter] might influence the 
-** choice of query plan if the parameter is the left-hand side of a [LIKE]
-** or [GLOB] operator or if the parameter is compared to an indexed column
-** and the [SQLITE_ENABLE_STAT4] compile-time option is enabled.
-** </li>
-** </ol>
-**
-** <p>^tdsqlite3_prepare_v3() differs from tdsqlite3_prepare_v2() only in having
-** the extra prepFlags parameter, which is a bit array consisting of zero or
-** more of the [SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_*] flags.  ^The
-** tdsqlite3_prepare_v2() interface works exactly the same as
-** tdsqlite3_prepare_v3() with a zero prepFlags parameter.
-*/
-SQLITE_API int tdsqlite3_prepare(
-  tdsqlite3 *db,            /* Database handle */
-  const char *zSql,       /* SQL statement, UTF-8 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const char **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare_v2(
-  tdsqlite3 *db,            /* Database handle */
-  const char *zSql,       /* SQL statement, UTF-8 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const char **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare_v3(
-  tdsqlite3 *db,            /* Database handle */
-  const char *zSql,       /* SQL statement, UTF-8 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  unsigned int prepFlags, /* Zero or more SQLITE_PREPARE_ flags */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const char **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare16(
-  tdsqlite3 *db,            /* Database handle */
-  const void *zSql,       /* SQL statement, UTF-16 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const void **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare16_v2(
-  tdsqlite3 *db,            /* Database handle */
-  const void *zSql,       /* SQL statement, UTF-16 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const void **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-SQLITE_API int tdsqlite3_prepare16_v3(
-  tdsqlite3 *db,            /* Database handle */
-  const void *zSql,       /* SQL statement, UTF-16 encoded */
-  int nByte,              /* Maximum length of zSql in bytes. */
-  unsigned int prepFlags, /* Zero or more SQLITE_PREPARE_ flags */
-  tdsqlite3_stmt **ppStmt,  /* OUT: Statement handle */
-  const void **pzTail     /* OUT: Pointer to unused portion of zSql */
-);
-
-/*
-** CAPI3REF: Retrieving Statement SQL
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_sql(P) interface returns a pointer to a copy of the UTF-8
-** SQL text used to create [prepared statement] P if P was
-** created by [tdsqlite3_prepare_v2()], [tdsqlite3_prepare_v3()],
-** [tdsqlite3_prepare16_v2()], or [tdsqlite3_prepare16_v3()].
-** ^The tdsqlite3_expanded_sql(P) interface returns a pointer to a UTF-8
-** string containing the SQL text of prepared statement P with
-** [bound parameters] expanded.
-** ^The tdsqlite3_normalized_sql(P) interface returns a pointer to a UTF-8
-** string containing the normalized SQL text of prepared statement P.  The
-** semantics used to normalize a SQL statement are unspecified and subject
-** to change.  At a minimum, literal values will be replaced with suitable
-** placeholders.
-**
-** ^(For example, if a prepared statement is created using the SQL
-** text "SELECT $abc,:xyz" and if parameter $abc is bound to integer 2345
-** and parameter :xyz is unbound, then tdsqlite3_sql() will return
-** the original string, "SELECT $abc,:xyz" but tdsqlite3_expanded_sql()
-** will return "SELECT 2345,NULL".)^
-**
-** ^The tdsqlite3_expanded_sql() interface returns NULL if insufficient memory
-** is available to hold the result, or if the result would exceed the
-** the maximum string length determined by the [SQLITE_LIMIT_LENGTH].
-**
-** ^The [SQLITE_TRACE_SIZE_LIMIT] compile-time option limits the size of
-** bound parameter expansions.  ^The [SQLITE_OMIT_TRACE] compile-time
-** option causes tdsqlite3_expanded_sql() to always return NULL.
-**
-** ^The strings returned by tdsqlite3_sql(P) and tdsqlite3_normalized_sql(P)
-** are managed by SQLite and are automatically freed when the prepared
-** statement is finalized.
-** ^The string returned by tdsqlite3_expanded_sql(P), on the other hand,
-** is obtained from [tdsqlite3_malloc()] and must be free by the application
-** by passing it to [tdsqlite3_free()].
-*/
-SQLITE_API const char *tdsqlite3_sql(tdsqlite3_stmt *pStmt);
-SQLITE_API char *tdsqlite3_expanded_sql(tdsqlite3_stmt *pStmt);
-SQLITE_API const char *tdsqlite3_normalized_sql(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Determine If An SQL Statement Writes The Database
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_stmt_readonly(X) interface returns true (non-zero) if
-** and only if the [prepared statement] X makes no direct changes to
-** the content of the database file.
-**
-** Note that [application-defined SQL functions] or
-** [virtual tables] might change the database indirectly as a side effect.  
-** ^(For example, if an application defines a function "eval()" that 
-** calls [tdsqlite3_exec()], then the following SQL statement would
-** change the database file through side-effects:
-**
-** <blockquote><pre>
-**    SELECT eval('DELETE FROM t1') FROM t2;
-** </pre></blockquote>
-**
-** But because the [SELECT] statement does not change the database file
-** directly, tdsqlite3_stmt_readonly() would still return true.)^
-**
-** ^Transaction control statements such as [BEGIN], [COMMIT], [ROLLBACK],
-** [SAVEPOINT], and [RELEASE] cause tdsqlite3_stmt_readonly() to return true,
-** since the statements themselves do not actually modify the database but
-** rather they control the timing of when other statements modify the 
-** database.  ^The [ATTACH] and [DETACH] statements also cause
-** tdsqlite3_stmt_readonly() to return true since, while those statements
-** change the configuration of a database connection, they do not make 
-** changes to the content of the database files on disk.
-** ^The tdsqlite3_stmt_readonly() interface returns true for [BEGIN] since
-** [BEGIN] merely sets internal flags, but the [BEGIN|BEGIN IMMEDIATE] and
-** [BEGIN|BEGIN EXCLUSIVE] commands do touch the database and so
-** tdsqlite3_stmt_readonly() returns false for those commands.
-*/
-SQLITE_API int tdsqlite3_stmt_readonly(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Query The EXPLAIN Setting For A Prepared Statement
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_stmt_isexplain(S) interface returns 1 if the
-** prepared statement S is an EXPLAIN statement, or 2 if the
-** statement S is an EXPLAIN QUERY PLAN.
-** ^The tdsqlite3_stmt_isexplain(S) interface returns 0 if S is
-** an ordinary statement or a NULL pointer.
-*/
-SQLITE_API int tdsqlite3_stmt_isexplain(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Determine If A Prepared Statement Has Been Reset
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_stmt_busy(S) interface returns true (non-zero) if the
-** [prepared statement] S has been stepped at least once using 
-** [tdsqlite3_step(S)] but has neither run to completion (returned
-** [SQLITE_DONE] from [tdsqlite3_step(S)]) nor
-** been reset using [tdsqlite3_reset(S)].  ^The tdsqlite3_stmt_busy(S)
-** interface returns false if S is a NULL pointer.  If S is not a 
-** NULL pointer and is not a pointer to a valid [prepared statement]
-** object, then the behavior is undefined and probably undesirable.
-**
-** This interface can be used in combination [tdsqlite3_next_stmt()]
-** to locate all prepared statements associated with a database 
-** connection that are in need of being reset.  This can be used,
-** for example, in diagnostic routines to search for prepared 
-** statements that are holding a transaction open.
-*/
-SQLITE_API int tdsqlite3_stmt_busy(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Dynamically Typed Value Object
-** KEYWORDS: {protected tdsqlite3_value} {unprotected tdsqlite3_value}
-**
-** SQLite uses the tdsqlite3_value object to represent all values
-** that can be stored in a database table. SQLite uses dynamic typing
-** for the values it stores.  ^Values stored in tdsqlite3_value objects
-** can be integers, floating point values, strings, BLOBs, or NULL.
-**
-** An tdsqlite3_value object may be either "protected" or "unprotected".
-** Some interfaces require a protected tdsqlite3_value.  Other interfaces
-** will accept either a protected or an unprotected tdsqlite3_value.
-** Every interface that accepts tdsqlite3_value arguments specifies
-** whether or not it requires a protected tdsqlite3_value.  The
-** [tdsqlite3_value_dup()] interface can be used to construct a new 
-** protected tdsqlite3_value from an unprotected tdsqlite3_value.
-**
-** The terms "protected" and "unprotected" refer to whether or not
-** a mutex is held.  An internal mutex is held for a protected
-** tdsqlite3_value object but no mutex is held for an unprotected
-** tdsqlite3_value object.  If SQLite is compiled to be single-threaded
-** (with [SQLITE_THREADSAFE=0] and with [tdsqlite3_threadsafe()] returning 0)
-** or if SQLite is run in one of reduced mutex modes 
-** [SQLITE_CONFIG_SINGLETHREAD] or [SQLITE_CONFIG_MULTITHREAD]
-** then there is no distinction between protected and unprotected
-** tdsqlite3_value objects and they can be used interchangeably.  However,
-** for maximum code portability it is recommended that applications
-** still make the distinction between protected and unprotected
-** tdsqlite3_value objects even when not strictly required.
-**
-** ^The tdsqlite3_value objects that are passed as parameters into the
-** implementation of [application-defined SQL functions] are protected.
-** ^The tdsqlite3_value object returned by
-** [tdsqlite3_column_value()] is unprotected.
-** Unprotected tdsqlite3_value objects may only be used as arguments
-** to [tdsqlite3_result_value()], [tdsqlite3_bind_value()], and
-** [tdsqlite3_value_dup()].
-** The [tdsqlite3_value_blob | tdsqlite3_value_type()] family of
-** interfaces require protected tdsqlite3_value objects.
-*/
-typedef struct tdsqlite3_value tdsqlite3_value;
-
-/*
-** CAPI3REF: SQL Function Context Object
-**
-** The context in which an SQL function executes is stored in an
-** tdsqlite3_context object.  ^A pointer to an tdsqlite3_context object
-** is always first parameter to [application-defined SQL functions].
-** The application-defined SQL function implementation will pass this
-** pointer through into calls to [tdsqlite3_result_int | tdsqlite3_result()],
-** [tdsqlite3_aggregate_context()], [tdsqlite3_user_data()],
-** [tdsqlite3_context_db_handle()], [tdsqlite3_get_auxdata()],
-** and/or [tdsqlite3_set_auxdata()].
-*/
-typedef struct tdsqlite3_context tdsqlite3_context;
-
-/*
-** CAPI3REF: Binding Values To Prepared Statements
-** KEYWORDS: {host parameter} {host parameters} {host parameter name}
-** KEYWORDS: {SQL parameter} {SQL parameters} {parameter binding}
-** METHOD: tdsqlite3_stmt
-**
-** ^(In the SQL statement text input to [tdsqlite3_prepare_v2()] and its variants,
-** literals may be replaced by a [parameter] that matches one of following
-** templates:
-**
-** <ul>
-** <li>  ?
-** <li>  ?NNN
-** <li>  :VVV
-** <li>  @VVV
-** <li>  $VVV
-** </ul>
-**
-** In the templates above, NNN represents an integer literal,
-** and VVV represents an alphanumeric identifier.)^  ^The values of these
-** parameters (also called "host parameter names" or "SQL parameters")
-** can be set using the tdsqlite3_bind_*() routines defined here.
-**
-** ^The first argument to the tdsqlite3_bind_*() routines is always
-** a pointer to the [tdsqlite3_stmt] object returned from
-** [tdsqlite3_prepare_v2()] or its variants.
-**
-** ^The second argument is the index of the SQL parameter to be set.
-** ^The leftmost SQL parameter has an index of 1.  ^When the same named
-** SQL parameter is used more than once, second and subsequent
-** occurrences have the same index as the first occurrence.
-** ^The index for named parameters can be looked up using the
-** [tdsqlite3_bind_parameter_index()] API if desired.  ^The index
-** for "?NNN" parameters is the value of NNN.
-** ^The NNN value must be between 1 and the [tdsqlite3_limit()]
-** parameter [SQLITE_LIMIT_VARIABLE_NUMBER] (default value: 999).
-**
-** ^The third argument is the value to bind to the parameter.
-** ^If the third parameter to tdsqlite3_bind_text() or tdsqlite3_bind_text16()
-** or tdsqlite3_bind_blob() is a NULL pointer then the fourth parameter
-** is ignored and the end result is the same as tdsqlite3_bind_null().
-**
-** ^(In those routines that have a fourth argument, its value is the
-** number of bytes in the parameter.  To be clear: the value is the
-** number of <u>bytes</u> in the value, not the number of characters.)^
-** ^If the fourth parameter to tdsqlite3_bind_text() or tdsqlite3_bind_text16()
-** is negative, then the length of the string is
-** the number of bytes up to the first zero terminator.
-** If the fourth parameter to tdsqlite3_bind_blob() is negative, then
-** the behavior is undefined.
-** If a non-negative fourth parameter is provided to tdsqlite3_bind_text()
-** or tdsqlite3_bind_text16() or tdsqlite3_bind_text64() then
-** that parameter must be the byte offset
-** where the NUL terminator would occur assuming the string were NUL
-** terminated.  If any NUL characters occur at byte offsets less than 
-** the value of the fourth parameter then the resulting string value will
-** contain embedded NULs.  The result of expressions involving strings
-** with embedded NULs is undefined.
-**
-** ^The fifth argument to the BLOB and string binding interfaces
-** is a destructor used to dispose of the BLOB or
-** string after SQLite has finished with it.  ^The destructor is called
-** to dispose of the BLOB or string even if the call to the bind API fails,
-** except the destructor is not called if the third parameter is a NULL
-** pointer or the fourth parameter is negative.
-** ^If the fifth argument is
-** the special value [SQLITE_STATIC], then SQLite assumes that the
-** information is in static, unmanaged space and does not need to be freed.
-** ^If the fifth argument has the value [SQLITE_TRANSIENT], then
-** SQLite makes its own private copy of the data immediately, before
-** the tdsqlite3_bind_*() routine returns.
-**
-** ^The sixth argument to tdsqlite3_bind_text64() must be one of
-** [SQLITE_UTF8], [SQLITE_UTF16], [SQLITE_UTF16BE], or [SQLITE_UTF16LE]
-** to specify the encoding of the text in the third parameter.  If
-** the sixth argument to tdsqlite3_bind_text64() is not one of the
-** allowed values shown above, or if the text encoding is different
-** from the encoding specified by the sixth parameter, then the behavior
-** is undefined.
-**
-** ^The tdsqlite3_bind_zeroblob() routine binds a BLOB of length N that
-** is filled with zeroes.  ^A zeroblob uses a fixed amount of memory
-** (just an integer to hold its size) while it is being processed.
-** Zeroblobs are intended to serve as placeholders for BLOBs whose
-** content is later written using
-** [tdsqlite3_blob_open | incremental BLOB I/O] routines.
-** ^A negative value for the zeroblob results in a zero-length BLOB.
-**
-** ^The tdsqlite3_bind_pointer(S,I,P,T,D) routine causes the I-th parameter in
-** [prepared statement] S to have an SQL value of NULL, but to also be
-** associated with the pointer P of type T.  ^D is either a NULL pointer or
-** a pointer to a destructor function for P. ^SQLite will invoke the
-** destructor D with a single argument of P when it is finished using
-** P.  The T parameter should be a static string, preferably a string
-** literal. The tdsqlite3_bind_pointer() routine is part of the
-** [pointer passing interface] added for SQLite 3.20.0.
-**
-** ^If any of the tdsqlite3_bind_*() routines are called with a NULL pointer
-** for the [prepared statement] or with a prepared statement for which
-** [tdsqlite3_step()] has been called more recently than [tdsqlite3_reset()],
-** then the call will return [SQLITE_MISUSE].  If any tdsqlite3_bind_()
-** routine is passed a [prepared statement] that has been finalized, the
-** result is undefined and probably harmful.
-**
-** ^Bindings are not cleared by the [tdsqlite3_reset()] routine.
-** ^Unbound parameters are interpreted as NULL.
-**
-** ^The tdsqlite3_bind_* routines return [SQLITE_OK] on success or an
-** [error code] if anything goes wrong.
-** ^[SQLITE_TOOBIG] might be returned if the size of a string or BLOB
-** exceeds limits imposed by [tdsqlite3_limit]([SQLITE_LIMIT_LENGTH]) or
-** [SQLITE_MAX_LENGTH].
-** ^[SQLITE_RANGE] is returned if the parameter
-** index is out of range.  ^[SQLITE_NOMEM] is returned if malloc() fails.
-**
-** See also: [tdsqlite3_bind_parameter_count()],
-** [tdsqlite3_bind_parameter_name()], and [tdsqlite3_bind_parameter_index()].
-*/
-SQLITE_API int tdsqlite3_bind_blob(tdsqlite3_stmt*, int, const void*, int n, void(*)(void*));
-SQLITE_API int tdsqlite3_bind_blob64(tdsqlite3_stmt*, int, const void*, tdsqlite3_uint64,
-                        void(*)(void*));
-SQLITE_API int tdsqlite3_bind_double(tdsqlite3_stmt*, int, double);
-SQLITE_API int tdsqlite3_bind_int(tdsqlite3_stmt*, int, int);
-SQLITE_API int tdsqlite3_bind_int64(tdsqlite3_stmt*, int, tdsqlite3_int64);
-SQLITE_API int tdsqlite3_bind_null(tdsqlite3_stmt*, int);
-SQLITE_API int tdsqlite3_bind_text(tdsqlite3_stmt*,int,const char*,int,void(*)(void*));
-SQLITE_API int tdsqlite3_bind_text16(tdsqlite3_stmt*, int, const void*, int, void(*)(void*));
-SQLITE_API int tdsqlite3_bind_text64(tdsqlite3_stmt*, int, const char*, tdsqlite3_uint64,
-                         void(*)(void*), unsigned char encoding);
-SQLITE_API int tdsqlite3_bind_value(tdsqlite3_stmt*, int, const tdsqlite3_value*);
-SQLITE_API int tdsqlite3_bind_pointer(tdsqlite3_stmt*, int, void*, const char*,void(*)(void*));
-SQLITE_API int tdsqlite3_bind_zeroblob(tdsqlite3_stmt*, int, int n);
-SQLITE_API int tdsqlite3_bind_zeroblob64(tdsqlite3_stmt*, int, tdsqlite3_uint64);
-
-/*
-** CAPI3REF: Number Of SQL Parameters
-** METHOD: tdsqlite3_stmt
-**
-** ^This routine can be used to find the number of [SQL parameters]
-** in a [prepared statement].  SQL parameters are tokens of the
-** form "?", "?NNN", ":AAA", "$AAA", or "@AAA" that serve as
-** placeholders for values that are [tdsqlite3_bind_blob | bound]
-** to the parameters at a later time.
-**
-** ^(This routine actually returns the index of the largest (rightmost)
-** parameter. For all forms except ?NNN, this will correspond to the
-** number of unique parameters.  If parameters of the ?NNN form are used,
-** there may be gaps in the list.)^
-**
-** See also: [tdsqlite3_bind_blob|tdsqlite3_bind()],
-** [tdsqlite3_bind_parameter_name()], and
-** [tdsqlite3_bind_parameter_index()].
-*/
-SQLITE_API int tdsqlite3_bind_parameter_count(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Name Of A Host Parameter
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_bind_parameter_name(P,N) interface returns
-** the name of the N-th [SQL parameter] in the [prepared statement] P.
-** ^(SQL parameters of the form "?NNN" or ":AAA" or "@AAA" or "$AAA"
-** have a name which is the string "?NNN" or ":AAA" or "@AAA" or "$AAA"
-** respectively.
-** In other words, the initial ":" or "$" or "@" or "?"
-** is included as part of the name.)^
-** ^Parameters of the form "?" without a following integer have no name
-** and are referred to as "nameless" or "anonymous parameters".
-**
-** ^The first host parameter has an index of 1, not 0.
-**
-** ^If the value N is out of range or if the N-th parameter is
-** nameless, then NULL is returned.  ^The returned string is
-** always in UTF-8 encoding even if the named parameter was
-** originally specified as UTF-16 in [tdsqlite3_prepare16()],
-** [tdsqlite3_prepare16_v2()], or [tdsqlite3_prepare16_v3()].
-**
-** See also: [tdsqlite3_bind_blob|tdsqlite3_bind()],
-** [tdsqlite3_bind_parameter_count()], and
-** [tdsqlite3_bind_parameter_index()].
-*/
-SQLITE_API const char *tdsqlite3_bind_parameter_name(tdsqlite3_stmt*, int);
-
-/*
-** CAPI3REF: Index Of A Parameter With A Given Name
-** METHOD: tdsqlite3_stmt
-**
-** ^Return the index of an SQL parameter given its name.  ^The
-** index value returned is suitable for use as the second
-** parameter to [tdsqlite3_bind_blob|tdsqlite3_bind()].  ^A zero
-** is returned if no matching parameter is found.  ^The parameter
-** name must be given in UTF-8 even if the original statement
-** was prepared from UTF-16 text using [tdsqlite3_prepare16_v2()] or
-** [tdsqlite3_prepare16_v3()].
-**
-** See also: [tdsqlite3_bind_blob|tdsqlite3_bind()],
-** [tdsqlite3_bind_parameter_count()], and
-** [tdsqlite3_bind_parameter_name()].
-*/
-SQLITE_API int tdsqlite3_bind_parameter_index(tdsqlite3_stmt*, const char *zName);
-
-/*
-** CAPI3REF: Reset All Bindings On A Prepared Statement
-** METHOD: tdsqlite3_stmt
-**
-** ^Contrary to the intuition of many, [tdsqlite3_reset()] does not reset
-** the [tdsqlite3_bind_blob | bindings] on a [prepared statement].
-** ^Use this routine to reset all host parameters to NULL.
-*/
-SQLITE_API int tdsqlite3_clear_bindings(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Number Of Columns In A Result Set
-** METHOD: tdsqlite3_stmt
-**
-** ^Return the number of columns in the result set returned by the
-** [prepared statement]. ^If this routine returns 0, that means the 
-** [prepared statement] returns no data (for example an [UPDATE]).
-** ^However, just because this routine returns a positive number does not
-** mean that one or more rows of data will be returned.  ^A SELECT statement
-** will always have a positive tdsqlite3_column_count() but depending on the
-** WHERE clause constraints and the table content, it might return no rows.
-**
-** See also: [tdsqlite3_data_count()]
-*/
-SQLITE_API int tdsqlite3_column_count(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Column Names In A Result Set
-** METHOD: tdsqlite3_stmt
-**
-** ^These routines return the name assigned to a particular column
-** in the result set of a [SELECT] statement.  ^The tdsqlite3_column_name()
-** interface returns a pointer to a zero-terminated UTF-8 string
-** and tdsqlite3_column_name16() returns a pointer to a zero-terminated
-** UTF-16 string.  ^The first parameter is the [prepared statement]
-** that implements the [SELECT] statement. ^The second parameter is the
-** column number.  ^The leftmost column is number 0.
-**
-** ^The returned string pointer is valid until either the [prepared statement]
-** is destroyed by [tdsqlite3_finalize()] or until the statement is automatically
-** reprepared by the first call to [tdsqlite3_step()] for a particular run
-** or until the next call to
-** tdsqlite3_column_name() or tdsqlite3_column_name16() on the same column.
-**
-** ^If tdsqlite3_malloc() fails during the processing of either routine
-** (for example during a conversion from UTF-8 to UTF-16) then a
-** NULL pointer is returned.
-**
-** ^The name of a result column is the value of the "AS" clause for
-** that column, if there is an AS clause.  If there is no AS clause
-** then the name of the column is unspecified and may change from
-** one release of SQLite to the next.
-*/
-SQLITE_API const char *tdsqlite3_column_name(tdsqlite3_stmt*, int N);
-SQLITE_API const void *tdsqlite3_column_name16(tdsqlite3_stmt*, int N);
-
-/*
-** CAPI3REF: Source Of Data In A Query Result
-** METHOD: tdsqlite3_stmt
-**
-** ^These routines provide a means to determine the database, table, and
-** table column that is the origin of a particular result column in
-** [SELECT] statement.
-** ^The name of the database or table or column can be returned as
-** either a UTF-8 or UTF-16 string.  ^The _database_ routines return
-** the database name, the _table_ routines return the table name, and
-** the origin_ routines return the column name.
-** ^The returned string is valid until the [prepared statement] is destroyed
-** using [tdsqlite3_finalize()] or until the statement is automatically
-** reprepared by the first call to [tdsqlite3_step()] for a particular run
-** or until the same information is requested
-** again in a different encoding.
-**
-** ^The names returned are the original un-aliased names of the
-** database, table, and column.
-**
-** ^The first argument to these interfaces is a [prepared statement].
-** ^These functions return information about the Nth result column returned by
-** the statement, where N is the second function argument.
-** ^The left-most column is column 0 for these routines.
-**
-** ^If the Nth column returned by the statement is an expression or
-** subquery and is not a column value, then all of these functions return
-** NULL.  ^These routines might also return NULL if a memory allocation error
-** occurs.  ^Otherwise, they return the name of the attached database, table,
-** or column that query result column was extracted from.
-**
-** ^As with all other SQLite APIs, those whose names end with "16" return
-** UTF-16 encoded strings and the other functions return UTF-8.
-**
-** ^These APIs are only available if the library was compiled with the
-** [SQLITE_ENABLE_COLUMN_METADATA] C-preprocessor symbol.
-**
-** If two or more threads call one or more
-** [tdsqlite3_column_database_name | column metadata interfaces]
-** for the same [prepared statement] and result column
-** at the same time then the results are undefined.
-*/
-SQLITE_API const char *tdsqlite3_column_database_name(tdsqlite3_stmt*,int);
-SQLITE_API const void *tdsqlite3_column_database_name16(tdsqlite3_stmt*,int);
-SQLITE_API const char *tdsqlite3_column_table_name(tdsqlite3_stmt*,int);
-SQLITE_API const void *tdsqlite3_column_table_name16(tdsqlite3_stmt*,int);
-SQLITE_API const char *tdsqlite3_column_origin_name(tdsqlite3_stmt*,int);
-SQLITE_API const void *tdsqlite3_column_origin_name16(tdsqlite3_stmt*,int);
-
-/*
-** CAPI3REF: Declared Datatype Of A Query Result
-** METHOD: tdsqlite3_stmt
-**
-** ^(The first parameter is a [prepared statement].
-** If this statement is a [SELECT] statement and the Nth column of the
-** returned result set of that [SELECT] is a table column (not an
-** expression or subquery) then the declared type of the table
-** column is returned.)^  ^If the Nth column of the result set is an
-** expression or subquery, then a NULL pointer is returned.
-** ^The returned string is always UTF-8 encoded.
-**
-** ^(For example, given the database schema:
-**
-** CREATE TABLE t1(c1 VARIANT);
-**
-** and the following statement to be compiled:
-**
-** SELECT c1 + 1, c1 FROM t1;
-**
-** this routine would return the string "VARIANT" for the second result
-** column (i==1), and a NULL pointer for the first result column (i==0).)^
-**
-** ^SQLite uses dynamic run-time typing.  ^So just because a column
-** is declared to contain a particular type does not mean that the
-** data stored in that column is of the declared type.  SQLite is
-** strongly typed, but the typing is dynamic not static.  ^Type
-** is associated with individual values, not with the containers
-** used to hold those values.
-*/
-SQLITE_API const char *tdsqlite3_column_decltype(tdsqlite3_stmt*,int);
-SQLITE_API const void *tdsqlite3_column_decltype16(tdsqlite3_stmt*,int);
-
-/*
-** CAPI3REF: Evaluate An SQL Statement
-** METHOD: tdsqlite3_stmt
-**
-** After a [prepared statement] has been prepared using any of
-** [tdsqlite3_prepare_v2()], [tdsqlite3_prepare_v3()], [tdsqlite3_prepare16_v2()],
-** or [tdsqlite3_prepare16_v3()] or one of the legacy
-** interfaces [tdsqlite3_prepare()] or [tdsqlite3_prepare16()], this function
-** must be called one or more times to evaluate the statement.
-**
-** The details of the behavior of the tdsqlite3_step() interface depend
-** on whether the statement was prepared using the newer "vX" interfaces
-** [tdsqlite3_prepare_v3()], [tdsqlite3_prepare_v2()], [tdsqlite3_prepare16_v3()],
-** [tdsqlite3_prepare16_v2()] or the older legacy
-** interfaces [tdsqlite3_prepare()] and [tdsqlite3_prepare16()].  The use of the
-** new "vX" interface is recommended for new applications but the legacy
-** interface will continue to be supported.
-**
-** ^In the legacy interface, the return value will be either [SQLITE_BUSY],
-** [SQLITE_DONE], [SQLITE_ROW], [SQLITE_ERROR], or [SQLITE_MISUSE].
-** ^With the "v2" interface, any of the other [result codes] or
-** [extended result codes] might be returned as well.
-**
-** ^[SQLITE_BUSY] means that the database engine was unable to acquire the
-** database locks it needs to do its job.  ^If the statement is a [COMMIT]
-** or occurs outside of an explicit transaction, then you can retry the
-** statement.  If the statement is not a [COMMIT] and occurs within an
-** explicit transaction then you should rollback the transaction before
-** continuing.
-**
-** ^[SQLITE_DONE] means that the statement has finished executing
-** successfully.  tdsqlite3_step() should not be called again on this virtual
-** machine without first calling [tdsqlite3_reset()] to reset the virtual
-** machine back to its initial state.
-**
-** ^If the SQL statement being executed returns any data, then [SQLITE_ROW]
-** is returned each time a new row of data is ready for processing by the
-** caller. The values may be accessed using the [column access functions].
-** tdsqlite3_step() is called again to retrieve the next row of data.
-**
-** ^[SQLITE_ERROR] means that a run-time error (such as a constraint
-** violation) has occurred.  tdsqlite3_step() should not be called again on
-** the VM. More information may be found by calling [tdsqlite3_errmsg()].
-** ^With the legacy interface, a more specific error code (for example,
-** [SQLITE_INTERRUPT], [SQLITE_SCHEMA], [SQLITE_CORRUPT], and so forth)
-** can be obtained by calling [tdsqlite3_reset()] on the
-** [prepared statement].  ^In the "v2" interface,
-** the more specific error code is returned directly by tdsqlite3_step().
-**
-** [SQLITE_MISUSE] means that the this routine was called inappropriately.
-** Perhaps it was called on a [prepared statement] that has
-** already been [tdsqlite3_finalize | finalized] or on one that had
-** previously returned [SQLITE_ERROR] or [SQLITE_DONE].  Or it could
-** be the case that the same database connection is being used by two or
-** more threads at the same moment in time.
-**
-** For all versions of SQLite up to and including 3.6.23.1, a call to
-** [tdsqlite3_reset()] was required after tdsqlite3_step() returned anything
-** other than [SQLITE_ROW] before any subsequent invocation of
-** tdsqlite3_step().  Failure to reset the prepared statement using 
-** [tdsqlite3_reset()] would result in an [SQLITE_MISUSE] return from
-** tdsqlite3_step().  But after [version 3.6.23.1] ([dateof:3.6.23.1],
-** tdsqlite3_step() began
-** calling [tdsqlite3_reset()] automatically in this circumstance rather
-** than returning [SQLITE_MISUSE].  This is not considered a compatibility
-** break because any application that ever receives an SQLITE_MISUSE error
-** is broken by definition.  The [SQLITE_OMIT_AUTORESET] compile-time option
-** can be used to restore the legacy behavior.
-**
-** <b>Goofy Interface Alert:</b> In the legacy interface, the tdsqlite3_step()
-** API always returns a generic error code, [SQLITE_ERROR], following any
-** error other than [SQLITE_BUSY] and [SQLITE_MISUSE].  You must call
-** [tdsqlite3_reset()] or [tdsqlite3_finalize()] in order to find one of the
-** specific [error codes] that better describes the error.
-** We admit that this is a goofy design.  The problem has been fixed
-** with the "v2" interface.  If you prepare all of your SQL statements
-** using [tdsqlite3_prepare_v3()] or [tdsqlite3_prepare_v2()]
-** or [tdsqlite3_prepare16_v2()] or [tdsqlite3_prepare16_v3()] instead
-** of the legacy [tdsqlite3_prepare()] and [tdsqlite3_prepare16()] interfaces,
-** then the more specific [error codes] are returned directly
-** by tdsqlite3_step().  The use of the "vX" interfaces is recommended.
-*/
-SQLITE_API int tdsqlite3_step(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Number of columns in a result set
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_data_count(P) interface returns the number of columns in the
-** current row of the result set of [prepared statement] P.
-** ^If prepared statement P does not have results ready to return
-** (via calls to the [tdsqlite3_column_int | tdsqlite3_column()] family of
-** interfaces) then tdsqlite3_data_count(P) returns 0.
-** ^The tdsqlite3_data_count(P) routine also returns 0 if P is a NULL pointer.
-** ^The tdsqlite3_data_count(P) routine returns 0 if the previous call to
-** [tdsqlite3_step](P) returned [SQLITE_DONE].  ^The tdsqlite3_data_count(P)
-** will return non-zero if previous call to [tdsqlite3_step](P) returned
-** [SQLITE_ROW], except in the case of the [PRAGMA incremental_vacuum]
-** where it always returns zero since each step of that multi-step
-** pragma returns 0 columns of data.
-**
-** See also: [tdsqlite3_column_count()]
-*/
-SQLITE_API int tdsqlite3_data_count(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Fundamental Datatypes
-** KEYWORDS: SQLITE_TEXT
-**
-** ^(Every value in SQLite has one of five fundamental datatypes:
-**
-** <ul>
-** <li> 64-bit signed integer
-** <li> 64-bit IEEE floating point number
-** <li> string
-** <li> BLOB
-** <li> NULL
-** </ul>)^
-**
-** These constants are codes for each of those types.
-**
-** Note that the SQLITE_TEXT constant was also used in SQLite version 2
-** for a completely different meaning.  Software that links against both
-** SQLite version 2 and SQLite version 3 should use SQLITE3_TEXT, not
-** SQLITE_TEXT.
-*/
-#define SQLITE_INTEGER  1
-#define SQLITE_FLOAT    2
-#define SQLITE_BLOB     4
-#define SQLITE_NULL     5
-#ifdef SQLITE_TEXT
-# undef SQLITE_TEXT
-#else
-# define SQLITE_TEXT     3
-#endif
-#define SQLITE3_TEXT     3
-
-/*
-** CAPI3REF: Result Values From A Query
-** KEYWORDS: {column access functions}
-** METHOD: tdsqlite3_stmt
-**
-** <b>Summary:</b>
-** <blockquote><table border=0 cellpadding=0 cellspacing=0>
-** <tr><td><b>tdsqlite3_column_blob</b><td>&rarr;<td>BLOB result
-** <tr><td><b>tdsqlite3_column_double</b><td>&rarr;<td>REAL result
-** <tr><td><b>tdsqlite3_column_int</b><td>&rarr;<td>32-bit INTEGER result
-** <tr><td><b>tdsqlite3_column_int64</b><td>&rarr;<td>64-bit INTEGER result
-** <tr><td><b>tdsqlite3_column_text</b><td>&rarr;<td>UTF-8 TEXT result
-** <tr><td><b>tdsqlite3_column_text16</b><td>&rarr;<td>UTF-16 TEXT result
-** <tr><td><b>tdsqlite3_column_value</b><td>&rarr;<td>The result as an 
-** [tdsqlite3_value|unprotected tdsqlite3_value] object.
-** <tr><td>&nbsp;<td>&nbsp;<td>&nbsp;
-** <tr><td><b>tdsqlite3_column_bytes</b><td>&rarr;<td>Size of a BLOB
-** or a UTF-8 TEXT result in bytes
-** <tr><td><b>tdsqlite3_column_bytes16&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>Size of UTF-16
-** TEXT in bytes
-** <tr><td><b>tdsqlite3_column_type</b><td>&rarr;<td>Default
-** datatype of the result
-** </table></blockquote>
-**
-** <b>Details:</b>
-**
-** ^These routines return information about a single column of the current
-** result row of a query.  ^In every case the first argument is a pointer
-** to the [prepared statement] that is being evaluated (the [tdsqlite3_stmt*]
-** that was returned from [tdsqlite3_prepare_v2()] or one of its variants)
-** and the second argument is the index of the column for which information
-** should be returned. ^The leftmost column of the result set has the index 0.
-** ^The number of columns in the result can be determined using
-** [tdsqlite3_column_count()].
-**
-** If the SQL statement does not currently point to a valid row, or if the
-** column index is out of range, the result is undefined.
-** These routines may only be called when the most recent call to
-** [tdsqlite3_step()] has returned [SQLITE_ROW] and neither
-** [tdsqlite3_reset()] nor [tdsqlite3_finalize()] have been called subsequently.
-** If any of these routines are called after [tdsqlite3_reset()] or
-** [tdsqlite3_finalize()] or after [tdsqlite3_step()] has returned
-** something other than [SQLITE_ROW], the results are undefined.
-** If [tdsqlite3_step()] or [tdsqlite3_reset()] or [tdsqlite3_finalize()]
-** are called from a different thread while any of these routines
-** are pending, then the results are undefined.
-**
-** The first six interfaces (_blob, _double, _int, _int64, _text, and _text16)
-** each return the value of a result column in a specific data format.  If
-** the result column is not initially in the requested format (for example,
-** if the query returns an integer but the tdsqlite3_column_text() interface
-** is used to extract the value) then an automatic type conversion is performed.
-**
-** ^The tdsqlite3_column_type() routine returns the
-** [SQLITE_INTEGER | datatype code] for the initial data type
-** of the result column.  ^The returned value is one of [SQLITE_INTEGER],
-** [SQLITE_FLOAT], [SQLITE_TEXT], [SQLITE_BLOB], or [SQLITE_NULL].
-** The return value of tdsqlite3_column_type() can be used to decide which
-** of the first six interface should be used to extract the column value.
-** The value returned by tdsqlite3_column_type() is only meaningful if no
-** automatic type conversions have occurred for the value in question.  
-** After a type conversion, the result of calling tdsqlite3_column_type()
-** is undefined, though harmless.  Future
-** versions of SQLite may change the behavior of tdsqlite3_column_type()
-** following a type conversion.
-**
-** If the result is a BLOB or a TEXT string, then the tdsqlite3_column_bytes()
-** or tdsqlite3_column_bytes16() interfaces can be used to determine the size
-** of that BLOB or string.
-**
-** ^If the result is a BLOB or UTF-8 string then the tdsqlite3_column_bytes()
-** routine returns the number of bytes in that BLOB or string.
-** ^If the result is a UTF-16 string, then tdsqlite3_column_bytes() converts
-** the string to UTF-8 and then returns the number of bytes.
-** ^If the result is a numeric value then tdsqlite3_column_bytes() uses
-** [tdsqlite3_snprintf()] to convert that value to a UTF-8 string and returns
-** the number of bytes in that string.
-** ^If the result is NULL, then tdsqlite3_column_bytes() returns zero.
-**
-** ^If the result is a BLOB or UTF-16 string then the tdsqlite3_column_bytes16()
-** routine returns the number of bytes in that BLOB or string.
-** ^If the result is a UTF-8 string, then tdsqlite3_column_bytes16() converts
-** the string to UTF-16 and then returns the number of bytes.
-** ^If the result is a numeric value then tdsqlite3_column_bytes16() uses
-** [tdsqlite3_snprintf()] to convert that value to a UTF-16 string and returns
-** the number of bytes in that string.
-** ^If the result is NULL, then tdsqlite3_column_bytes16() returns zero.
-**
-** ^The values returned by [tdsqlite3_column_bytes()] and 
-** [tdsqlite3_column_bytes16()] do not include the zero terminators at the end
-** of the string.  ^For clarity: the values returned by
-** [tdsqlite3_column_bytes()] and [tdsqlite3_column_bytes16()] are the number of
-** bytes in the string, not the number of characters.
-**
-** ^Strings returned by tdsqlite3_column_text() and tdsqlite3_column_text16(),
-** even empty strings, are always zero-terminated.  ^The return
-** value from tdsqlite3_column_blob() for a zero-length BLOB is a NULL pointer.
-**
-** <b>Warning:</b> ^The object returned by [tdsqlite3_column_value()] is an
-** [unprotected tdsqlite3_value] object.  In a multithreaded environment,
-** an unprotected tdsqlite3_value object may only be used safely with
-** [tdsqlite3_bind_value()] and [tdsqlite3_result_value()].
-** If the [unprotected tdsqlite3_value] object returned by
-** [tdsqlite3_column_value()] is used in any other way, including calls
-** to routines like [tdsqlite3_value_int()], [tdsqlite3_value_text()],
-** or [tdsqlite3_value_bytes()], the behavior is not threadsafe.
-** Hence, the tdsqlite3_column_value() interface
-** is normally only useful within the implementation of 
-** [application-defined SQL functions] or [virtual tables], not within
-** top-level application code.
-**
-** The these routines may attempt to convert the datatype of the result.
-** ^For example, if the internal representation is FLOAT and a text result
-** is requested, [tdsqlite3_snprintf()] is used internally to perform the
-** conversion automatically.  ^(The following table details the conversions
-** that are applied:
-**
-** <blockquote>
-** <table border="1">
-** <tr><th> Internal<br>Type <th> Requested<br>Type <th>  Conversion
-**
-** <tr><td>  NULL    <td> INTEGER   <td> Result is 0
-** <tr><td>  NULL    <td>  FLOAT    <td> Result is 0.0
-** <tr><td>  NULL    <td>   TEXT    <td> Result is a NULL pointer
-** <tr><td>  NULL    <td>   BLOB    <td> Result is a NULL pointer
-** <tr><td> INTEGER  <td>  FLOAT    <td> Convert from integer to float
-** <tr><td> INTEGER  <td>   TEXT    <td> ASCII rendering of the integer
-** <tr><td> INTEGER  <td>   BLOB    <td> Same as INTEGER->TEXT
-** <tr><td>  FLOAT   <td> INTEGER   <td> [CAST] to INTEGER
-** <tr><td>  FLOAT   <td>   TEXT    <td> ASCII rendering of the float
-** <tr><td>  FLOAT   <td>   BLOB    <td> [CAST] to BLOB
-** <tr><td>  TEXT    <td> INTEGER   <td> [CAST] to INTEGER
-** <tr><td>  TEXT    <td>  FLOAT    <td> [CAST] to REAL
-** <tr><td>  TEXT    <td>   BLOB    <td> No change
-** <tr><td>  BLOB    <td> INTEGER   <td> [CAST] to INTEGER
-** <tr><td>  BLOB    <td>  FLOAT    <td> [CAST] to REAL
-** <tr><td>  BLOB    <td>   TEXT    <td> Add a zero terminator if needed
-** </table>
-** </blockquote>)^
-**
-** Note that when type conversions occur, pointers returned by prior
-** calls to tdsqlite3_column_blob(), tdsqlite3_column_text(), and/or
-** tdsqlite3_column_text16() may be invalidated.
-** Type conversions and pointer invalidations might occur
-** in the following cases:
-**
-** <ul>
-** <li> The initial content is a BLOB and tdsqlite3_column_text() or
-**      tdsqlite3_column_text16() is called.  A zero-terminator might
-**      need to be added to the string.</li>
-** <li> The initial content is UTF-8 text and tdsqlite3_column_bytes16() or
-**      tdsqlite3_column_text16() is called.  The content must be converted
-**      to UTF-16.</li>
-** <li> The initial content is UTF-16 text and tdsqlite3_column_bytes() or
-**      tdsqlite3_column_text() is called.  The content must be converted
-**      to UTF-8.</li>
-** </ul>
-**
-** ^Conversions between UTF-16be and UTF-16le are always done in place and do
-** not invalidate a prior pointer, though of course the content of the buffer
-** that the prior pointer references will have been modified.  Other kinds
-** of conversion are done in place when it is possible, but sometimes they
-** are not possible and in those cases prior pointers are invalidated.
-**
-** The safest policy is to invoke these routines
-** in one of the following ways:
-**
-** <ul>
-**  <li>tdsqlite3_column_text() followed by tdsqlite3_column_bytes()</li>
-**  <li>tdsqlite3_column_blob() followed by tdsqlite3_column_bytes()</li>
-**  <li>tdsqlite3_column_text16() followed by tdsqlite3_column_bytes16()</li>
-** </ul>
-**
-** In other words, you should call tdsqlite3_column_text(),
-** tdsqlite3_column_blob(), or tdsqlite3_column_text16() first to force the result
-** into the desired format, then invoke tdsqlite3_column_bytes() or
-** tdsqlite3_column_bytes16() to find the size of the result.  Do not mix calls
-** to tdsqlite3_column_text() or tdsqlite3_column_blob() with calls to
-** tdsqlite3_column_bytes16(), and do not mix calls to tdsqlite3_column_text16()
-** with calls to tdsqlite3_column_bytes().
-**
-** ^The pointers returned are valid until a type conversion occurs as
-** described above, or until [tdsqlite3_step()] or [tdsqlite3_reset()] or
-** [tdsqlite3_finalize()] is called.  ^The memory space used to hold strings
-** and BLOBs is freed automatically.  Do not pass the pointers returned
-** from [tdsqlite3_column_blob()], [tdsqlite3_column_text()], etc. into
-** [tdsqlite3_free()].
-**
-** As long as the input parameters are correct, these routines will only
-** fail if an out-of-memory error occurs during a format conversion.
-** Only the following subset of interfaces are subject to out-of-memory
-** errors:
-**
-** <ul>
-** <li> tdsqlite3_column_blob()
-** <li> tdsqlite3_column_text()
-** <li> tdsqlite3_column_text16()
-** <li> tdsqlite3_column_bytes()
-** <li> tdsqlite3_column_bytes16()
-** </ul>
-**
-** If an out-of-memory error occurs, then the return value from these
-** routines is the same as if the column had contained an SQL NULL value.
-** Valid SQL NULL returns can be distinguished from out-of-memory errors
-** by invoking the [tdsqlite3_errcode()] immediately after the suspect
-** return value is obtained and before any
-** other SQLite interface is called on the same [database connection].
-*/
-SQLITE_API const void *tdsqlite3_column_blob(tdsqlite3_stmt*, int iCol);
-SQLITE_API double tdsqlite3_column_double(tdsqlite3_stmt*, int iCol);
-SQLITE_API int tdsqlite3_column_int(tdsqlite3_stmt*, int iCol);
-SQLITE_API tdsqlite3_int64 tdsqlite3_column_int64(tdsqlite3_stmt*, int iCol);
-SQLITE_API const unsigned char *tdsqlite3_column_text(tdsqlite3_stmt*, int iCol);
-SQLITE_API const void *tdsqlite3_column_text16(tdsqlite3_stmt*, int iCol);
-SQLITE_API tdsqlite3_value *tdsqlite3_column_value(tdsqlite3_stmt*, int iCol);
-SQLITE_API int tdsqlite3_column_bytes(tdsqlite3_stmt*, int iCol);
-SQLITE_API int tdsqlite3_column_bytes16(tdsqlite3_stmt*, int iCol);
-SQLITE_API int tdsqlite3_column_type(tdsqlite3_stmt*, int iCol);
-
-/*
-** CAPI3REF: Destroy A Prepared Statement Object
-** DESTRUCTOR: tdsqlite3_stmt
-**
-** ^The tdsqlite3_finalize() function is called to delete a [prepared statement].
-** ^If the most recent evaluation of the statement encountered no errors
-** or if the statement is never been evaluated, then tdsqlite3_finalize() returns
-** SQLITE_OK.  ^If the most recent evaluation of statement S failed, then
-** tdsqlite3_finalize(S) returns the appropriate [error code] or
-** [extended error code].
-**
-** ^The tdsqlite3_finalize(S) routine can be called at any point during
-** the life cycle of [prepared statement] S:
-** before statement S is ever evaluated, after
-** one or more calls to [tdsqlite3_reset()], or after any call
-** to [tdsqlite3_step()] regardless of whether or not the statement has
-** completed execution.
-**
-** ^Invoking tdsqlite3_finalize() on a NULL pointer is a harmless no-op.
-**
-** The application must finalize every [prepared statement] in order to avoid
-** resource leaks.  It is a grievous error for the application to try to use
-** a prepared statement after it has been finalized.  Any use of a prepared
-** statement after it has been finalized can result in undefined and
-** undesirable behavior such as segfaults and heap corruption.
-*/
-SQLITE_API int tdsqlite3_finalize(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Reset A Prepared Statement Object
-** METHOD: tdsqlite3_stmt
-**
-** The tdsqlite3_reset() function is called to reset a [prepared statement]
-** object back to its initial state, ready to be re-executed.
-** ^Any SQL statement variables that had values bound to them using
-** the [tdsqlite3_bind_blob | tdsqlite3_bind_*() API] retain their values.
-** Use [tdsqlite3_clear_bindings()] to reset the bindings.
-**
-** ^The [tdsqlite3_reset(S)] interface resets the [prepared statement] S
-** back to the beginning of its program.
-**
-** ^If the most recent call to [tdsqlite3_step(S)] for the
-** [prepared statement] S returned [SQLITE_ROW] or [SQLITE_DONE],
-** or if [tdsqlite3_step(S)] has never before been called on S,
-** then [tdsqlite3_reset(S)] returns [SQLITE_OK].
-**
-** ^If the most recent call to [tdsqlite3_step(S)] for the
-** [prepared statement] S indicated an error, then
-** [tdsqlite3_reset(S)] returns an appropriate [error code].
-**
-** ^The [tdsqlite3_reset(S)] interface does not change the values
-** of any [tdsqlite3_bind_blob|bindings] on the [prepared statement] S.
-*/
-SQLITE_API int tdsqlite3_reset(tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Create Or Redefine SQL Functions
-** KEYWORDS: {function creation routines}
-** METHOD: tdsqlite3
-**
-** ^These functions (collectively known as "function creation routines")
-** are used to add SQL functions or aggregates or to redefine the behavior
-** of existing SQL functions or aggregates. The only differences between
-** the three "tdsqlite3_create_function*" routines are the text encoding 
-** expected for the second parameter (the name of the function being 
-** created) and the presence or absence of a destructor callback for
-** the application data pointer. Function tdsqlite3_create_window_function()
-** is similar, but allows the user to supply the extra callback functions
-** needed by [aggregate window functions].
-**
-** ^The first parameter is the [database connection] to which the SQL
-** function is to be added.  ^If an application uses more than one database
-** connection then application-defined SQL functions must be added
-** to each database connection separately.
-**
-** ^The second parameter is the name of the SQL function to be created or
-** redefined.  ^The length of the name is limited to 255 bytes in a UTF-8
-** representation, exclusive of the zero-terminator.  ^Note that the name
-** length limit is in UTF-8 bytes, not characters nor UTF-16 bytes.  
-** ^Any attempt to create a function with a longer name
-** will result in [SQLITE_MISUSE] being returned.
-**
-** ^The third parameter (nArg)
-** is the number of arguments that the SQL function or
-** aggregate takes. ^If this parameter is -1, then the SQL function or
-** aggregate may take any number of arguments between 0 and the limit
-** set by [tdsqlite3_limit]([SQLITE_LIMIT_FUNCTION_ARG]).  If the third
-** parameter is less than -1 or greater than 127 then the behavior is
-** undefined.
-**
-** ^The fourth parameter, eTextRep, specifies what
-** [SQLITE_UTF8 | text encoding] this SQL function prefers for
-** its parameters.  The application should set this parameter to
-** [SQLITE_UTF16LE] if the function implementation invokes 
-** [tdsqlite3_value_text16le()] on an input, or [SQLITE_UTF16BE] if the
-** implementation invokes [tdsqlite3_value_text16be()] on an input, or
-** [SQLITE_UTF16] if [tdsqlite3_value_text16()] is used, or [SQLITE_UTF8]
-** otherwise.  ^The same SQL function may be registered multiple times using
-** different preferred text encodings, with different implementations for
-** each encoding.
-** ^When multiple implementations of the same function are available, SQLite
-** will pick the one that involves the least amount of data conversion.
-**
-** ^The fourth parameter may optionally be ORed with [SQLITE_DETERMINISTIC]
-** to signal that the function will always return the same result given
-** the same inputs within a single SQL statement.  Most SQL functions are
-** deterministic.  The built-in [random()] SQL function is an example of a
-** function that is not deterministic.  The SQLite query planner is able to
-** perform additional optimizations on deterministic functions, so use
-** of the [SQLITE_DETERMINISTIC] flag is recommended where possible.
-**
-** ^The fourth parameter may also optionally include the [SQLITE_DIRECTONLY]
-** flag, which if present prevents the function from being invoked from
-** within VIEWs, TRIGGERs, CHECK constraints, generated column expressions,
-** index expressions, or the WHERE clause of partial indexes.
-**
-** <span style="background-color:#ffff90;">
-** For best security, the [SQLITE_DIRECTONLY] flag is recommended for
-** all application-defined SQL functions that do not need to be
-** used inside of triggers, view, CHECK constraints, or other elements of
-** the database schema.  This flags is especially recommended for SQL 
-** functions that have side effects or reveal internal application state.
-** Without this flag, an attacker might be able to modify the schema of
-** a database file to include invocations of the function with parameters
-** chosen by the attacker, which the application will then execute when
-** the database file is opened and read.
-** </span>
-**
-** ^(The fifth parameter is an arbitrary pointer.  The implementation of the
-** function can gain access to this pointer using [tdsqlite3_user_data()].)^
-**
-** ^The sixth, seventh and eighth parameters passed to the three
-** "tdsqlite3_create_function*" functions, xFunc, xStep and xFinal, are
-** pointers to C-language functions that implement the SQL function or
-** aggregate. ^A scalar SQL function requires an implementation of the xFunc
-** callback only; NULL pointers must be passed as the xStep and xFinal
-** parameters. ^An aggregate SQL function requires an implementation of xStep
-** and xFinal and NULL pointer must be passed for xFunc. ^To delete an existing
-** SQL function or aggregate, pass NULL pointers for all three function
-** callbacks.
-**
-** ^The sixth, seventh, eighth and ninth parameters (xStep, xFinal, xValue 
-** and xInverse) passed to tdsqlite3_create_window_function are pointers to
-** C-language callbacks that implement the new function. xStep and xFinal
-** must both be non-NULL. xValue and xInverse may either both be NULL, in
-** which case a regular aggregate function is created, or must both be 
-** non-NULL, in which case the new function may be used as either an aggregate
-** or aggregate window function. More details regarding the implementation
-** of aggregate window functions are 
-** [user-defined window functions|available here].
-**
-** ^(If the final parameter to tdsqlite3_create_function_v2() or
-** tdsqlite3_create_window_function() is not NULL, then it is destructor for
-** the application data pointer. The destructor is invoked when the function 
-** is deleted, either by being overloaded or when the database connection 
-** closes.)^ ^The destructor is also invoked if the call to 
-** tdsqlite3_create_function_v2() fails.  ^When the destructor callback is
-** invoked, it is passed a single argument which is a copy of the application
-** data pointer which was the fifth parameter to tdsqlite3_create_function_v2().
-**
-** ^It is permitted to register multiple implementations of the same
-** functions with the same name but with either differing numbers of
-** arguments or differing preferred text encodings.  ^SQLite will use
-** the implementation that most closely matches the way in which the
-** SQL function is used.  ^A function implementation with a non-negative
-** nArg parameter is a better match than a function implementation with
-** a negative nArg.  ^A function where the preferred text encoding
-** matches the database encoding is a better
-** match than a function where the encoding is different.  
-** ^A function where the encoding difference is between UTF16le and UTF16be
-** is a closer match than a function where the encoding difference is
-** between UTF8 and UTF16.
-**
-** ^Built-in functions may be overloaded by new application-defined functions.
-**
-** ^An application-defined function is permitted to call other
-** SQLite interfaces.  However, such calls must not
-** close the database connection nor finalize or reset the prepared
-** statement in which the function is running.
-*/
-SQLITE_API int tdsqlite3_create_function(
-  tdsqlite3 *db,
-  const char *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *pApp,
-  void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*)
-);
-SQLITE_API int tdsqlite3_create_function16(
-  tdsqlite3 *db,
-  const void *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *pApp,
-  void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*)
-);
-SQLITE_API int tdsqlite3_create_function_v2(
-  tdsqlite3 *db,
-  const char *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *pApp,
-  void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*),
-  void(*xDestroy)(void*)
-);
-SQLITE_API int tdsqlite3_create_window_function(
-  tdsqlite3 *db,
-  const char *zFunctionName,
-  int nArg,
-  int eTextRep,
-  void *pApp,
-  void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void (*xFinal)(tdsqlite3_context*),
-  void (*xValue)(tdsqlite3_context*),
-  void (*xInverse)(tdsqlite3_context*,int,tdsqlite3_value**),
-  void(*xDestroy)(void*)
-);
-
-/*
-** CAPI3REF: Text Encodings
-**
-** These constant define integer codes that represent the various
-** text encodings supported by SQLite.
-*/
-#define SQLITE_UTF8           1    /* IMP: R-37514-35566 */
-#define SQLITE_UTF16LE        2    /* IMP: R-03371-37637 */
-#define SQLITE_UTF16BE        3    /* IMP: R-51971-34154 */
-#define SQLITE_UTF16          4    /* Use native byte order */
-#define SQLITE_ANY            5    /* Deprecated */
-#define SQLITE_UTF16_ALIGNED  8    /* tdsqlite3_create_collation only */
-
-/*
-** CAPI3REF: Function Flags
-**
-** These constants may be ORed together with the 
-** [SQLITE_UTF8 | preferred text encoding] as the fourth argument
-** to [tdsqlite3_create_function()], [tdsqlite3_create_function16()], or
-** [tdsqlite3_create_function_v2()].
-**
-** <dl>
-** [[SQLITE_DETERMINISTIC]] <dt>SQLITE_DETERMINISTIC</dt><dd>
-** The SQLITE_DETERMINISTIC flag means that the new function always gives
-** the same output when the input parameters are the same.
-** The [abs|abs() function] is deterministic, for example, but
-** [randomblob|randomblob()] is not.  Functions must
-** be deterministic in order to be used in certain contexts such as
-** with the WHERE clause of [partial indexes] or in [generated columns].
-** SQLite might also optimize deterministic functions by factoring them
-** out of inner loops.
-** </dd>
-** 
-** [[SQLITE_DIRECTONLY]] <dt>SQLITE_DIRECTONLY</dt><dd>
-** The SQLITE_DIRECTONLY flag means that the function may only be invoked
-** from top-level SQL, and cannot be used in VIEWs or TRIGGERs nor in 
-** schema structures such as [CHECK constraints], [DEFAULT clauses],
-** [expression indexes], [partial indexes], or [generated columns].
-** The SQLITE_DIRECTONLY flags is a security feature which is recommended
-** for all [application-defined SQL functions], and especially for functions
-** that have side-effects or that could potentially leak sensitive
-** information.
-** </dd>
-**
-** [[SQLITE_INNOCUOUS]] <dt>SQLITE_INNOCUOUS</dt><dd>
-** The SQLITE_INNOCUOUS flag means that the function is unlikely
-** to cause problems even if misused.  An innocuous function should have
-** no side effects and should not depend on any values other than its
-** input parameters. The [abs|abs() function] is an example of an
-** innocuous function.
-** The [load_extension() SQL function] is not innocuous because of its
-** side effects.
-** <p> SQLITE_INNOCUOUS is similar to SQLITE_DETERMINISTIC, but is not
-** exactly the same.  The [random|random() function] is an example of a
-** function that is innocuous but not deterministic.
-** <p>Some heightened security settings
-** ([SQLITE_DBCONFIG_TRUSTED_SCHEMA] and [PRAGMA trusted_schema=OFF])
-** disable the use of SQL functions inside views and triggers and in
-** schema structures such as [CHECK constraints], [DEFAULT clauses],
-** [expression indexes], [partial indexes], and [generated columns] unless
-** the function is tagged with SQLITE_INNOCUOUS.  Most built-in functions
-** are innocuous.  Developers are advised to avoid using the
-** SQLITE_INNOCUOUS flag for application-defined functions unless the
-** function has been carefully audited and found to be free of potentially
-** security-adverse side-effects and information-leaks.
-** </dd>
-**
-** [[SQLITE_SUBTYPE]] <dt>SQLITE_SUBTYPE</dt><dd>
-** The SQLITE_SUBTYPE flag indicates to SQLite that a function may call
-** [tdsqlite3_value_subtype()] to inspect the sub-types of its arguments.
-** Specifying this flag makes no difference for scalar or aggregate user
-** functions. However, if it is not specified for a user-defined window
-** function, then any sub-types belonging to arguments passed to the window
-** function may be discarded before the window function is called (i.e.
-** tdsqlite3_value_subtype() will always return 0).
-** </dd>
-** </dl>
-*/
-#define SQLITE_DETERMINISTIC    0x000000800
-#define SQLITE_DIRECTONLY       0x000080000
-#define SQLITE_SUBTYPE          0x000100000
-#define SQLITE_INNOCUOUS        0x000200000
-
-/*
-** CAPI3REF: Deprecated Functions
-** DEPRECATED
-**
-** These functions are [deprecated].  In order to maintain
-** backwards compatibility with older code, these functions continue 
-** to be supported.  However, new applications should avoid
-** the use of these functions.  To encourage programmers to avoid
-** these functions, we will not explain what they do.
-*/
-#ifndef SQLITE_OMIT_DEPRECATED
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_aggregate_count(tdsqlite3_context*);
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_expired(tdsqlite3_stmt*);
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_transfer_bindings(tdsqlite3_stmt*, tdsqlite3_stmt*);
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_global_recover(void);
-SQLITE_API SQLITE_DEPRECATED void tdsqlite3_thread_cleanup(void);
-SQLITE_API SQLITE_DEPRECATED int tdsqlite3_memory_alarm(void(*)(void*,tdsqlite3_int64,int),
-                      void*,tdsqlite3_int64);
-#endif
-
-/*
-** CAPI3REF: Obtaining SQL Values
-** METHOD: tdsqlite3_value
-**
-** <b>Summary:</b>
-** <blockquote><table border=0 cellpadding=0 cellspacing=0>
-** <tr><td><b>tdsqlite3_value_blob</b><td>&rarr;<td>BLOB value
-** <tr><td><b>tdsqlite3_value_double</b><td>&rarr;<td>REAL value
-** <tr><td><b>tdsqlite3_value_int</b><td>&rarr;<td>32-bit INTEGER value
-** <tr><td><b>tdsqlite3_value_int64</b><td>&rarr;<td>64-bit INTEGER value
-** <tr><td><b>tdsqlite3_value_pointer</b><td>&rarr;<td>Pointer value
-** <tr><td><b>tdsqlite3_value_text</b><td>&rarr;<td>UTF-8 TEXT value
-** <tr><td><b>tdsqlite3_value_text16</b><td>&rarr;<td>UTF-16 TEXT value in
-** the native byteorder
-** <tr><td><b>tdsqlite3_value_text16be</b><td>&rarr;<td>UTF-16be TEXT value
-** <tr><td><b>tdsqlite3_value_text16le</b><td>&rarr;<td>UTF-16le TEXT value
-** <tr><td>&nbsp;<td>&nbsp;<td>&nbsp;
-** <tr><td><b>tdsqlite3_value_bytes</b><td>&rarr;<td>Size of a BLOB
-** or a UTF-8 TEXT in bytes
-** <tr><td><b>tdsqlite3_value_bytes16&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>Size of UTF-16
-** TEXT in bytes
-** <tr><td><b>tdsqlite3_value_type</b><td>&rarr;<td>Default
-** datatype of the value
-** <tr><td><b>tdsqlite3_value_numeric_type&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>Best numeric datatype of the value
-** <tr><td><b>tdsqlite3_value_nochange&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>True if the column is unchanged in an UPDATE
-** against a virtual table.
-** <tr><td><b>tdsqlite3_value_frombind&nbsp;&nbsp;</b>
-** <td>&rarr;&nbsp;&nbsp;<td>True if value originated from a [bound parameter]
-** </table></blockquote>
-**
-** <b>Details:</b>
-**
-** These routines extract type, size, and content information from
-** [protected tdsqlite3_value] objects.  Protected tdsqlite3_value objects
-** are used to pass parameter information into the functions that
-** implement [application-defined SQL functions] and [virtual tables].
-**
-** These routines work only with [protected tdsqlite3_value] objects.
-** Any attempt to use these routines on an [unprotected tdsqlite3_value]
-** is not threadsafe.
-**
-** ^These routines work just like the corresponding [column access functions]
-** except that these routines take a single [protected tdsqlite3_value] object
-** pointer instead of a [tdsqlite3_stmt*] pointer and an integer column number.
-**
-** ^The tdsqlite3_value_text16() interface extracts a UTF-16 string
-** in the native byte-order of the host machine.  ^The
-** tdsqlite3_value_text16be() and tdsqlite3_value_text16le() interfaces
-** extract UTF-16 strings as big-endian and little-endian respectively.
-**
-** ^If [tdsqlite3_value] object V was initialized 
-** using [tdsqlite3_bind_pointer(S,I,P,X,D)] or [tdsqlite3_result_pointer(C,P,X,D)]
-** and if X and Y are strings that compare equal according to strcmp(X,Y),
-** then tdsqlite3_value_pointer(V,Y) will return the pointer P.  ^Otherwise,
-** tdsqlite3_value_pointer(V,Y) returns a NULL. The tdsqlite3_bind_pointer() 
-** routine is part of the [pointer passing interface] added for SQLite 3.20.0.
-**
-** ^(The tdsqlite3_value_type(V) interface returns the
-** [SQLITE_INTEGER | datatype code] for the initial datatype of the
-** [tdsqlite3_value] object V. The returned value is one of [SQLITE_INTEGER],
-** [SQLITE_FLOAT], [SQLITE_TEXT], [SQLITE_BLOB], or [SQLITE_NULL].)^
-** Other interfaces might change the datatype for an tdsqlite3_value object.
-** For example, if the datatype is initially SQLITE_INTEGER and
-** tdsqlite3_value_text(V) is called to extract a text value for that
-** integer, then subsequent calls to tdsqlite3_value_type(V) might return
-** SQLITE_TEXT.  Whether or not a persistent internal datatype conversion
-** occurs is undefined and may change from one release of SQLite to the next.
-**
-** ^(The tdsqlite3_value_numeric_type() interface attempts to apply
-** numeric affinity to the value.  This means that an attempt is
-** made to convert the value to an integer or floating point.  If
-** such a conversion is possible without loss of information (in other
-** words, if the value is a string that looks like a number)
-** then the conversion is performed.  Otherwise no conversion occurs.
-** The [SQLITE_INTEGER | datatype] after conversion is returned.)^
-**
-** ^Within the [xUpdate] method of a [virtual table], the
-** tdsqlite3_value_nochange(X) interface returns true if and only if
-** the column corresponding to X is unchanged by the UPDATE operation
-** that the xUpdate method call was invoked to implement and if
-** and the prior [xColumn] method call that was invoked to extracted
-** the value for that column returned without setting a result (probably
-** because it queried [tdsqlite3_vtab_nochange()] and found that the column
-** was unchanging).  ^Within an [xUpdate] method, any value for which
-** tdsqlite3_value_nochange(X) is true will in all other respects appear
-** to be a NULL value.  If tdsqlite3_value_nochange(X) is invoked anywhere other
-** than within an [xUpdate] method call for an UPDATE statement, then
-** the return value is arbitrary and meaningless.
-**
-** ^The tdsqlite3_value_frombind(X) interface returns non-zero if the
-** value X originated from one of the [tdsqlite3_bind_int|tdsqlite3_bind()]
-** interfaces.  ^If X comes from an SQL literal value, or a table column,
-** or an expression, then tdsqlite3_value_frombind(X) returns zero.
-**
-** Please pay particular attention to the fact that the pointer returned
-** from [tdsqlite3_value_blob()], [tdsqlite3_value_text()], or
-** [tdsqlite3_value_text16()] can be invalidated by a subsequent call to
-** [tdsqlite3_value_bytes()], [tdsqlite3_value_bytes16()], [tdsqlite3_value_text()],
-** or [tdsqlite3_value_text16()].
-**
-** These routines must be called from the same thread as
-** the SQL function that supplied the [tdsqlite3_value*] parameters.
-**
-** As long as the input parameter is correct, these routines can only
-** fail if an out-of-memory error occurs during a format conversion.
-** Only the following subset of interfaces are subject to out-of-memory
-** errors:
-**
-** <ul>
-** <li> tdsqlite3_value_blob()
-** <li> tdsqlite3_value_text()
-** <li> tdsqlite3_value_text16()
-** <li> tdsqlite3_value_text16le()
-** <li> tdsqlite3_value_text16be()
-** <li> tdsqlite3_value_bytes()
-** <li> tdsqlite3_value_bytes16()
-** </ul>
-**
-** If an out-of-memory error occurs, then the return value from these
-** routines is the same as if the column had contained an SQL NULL value.
-** Valid SQL NULL returns can be distinguished from out-of-memory errors
-** by invoking the [tdsqlite3_errcode()] immediately after the suspect
-** return value is obtained and before any
-** other SQLite interface is called on the same [database connection].
-*/
-SQLITE_API const void *tdsqlite3_value_blob(tdsqlite3_value*);
-SQLITE_API double tdsqlite3_value_double(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_int(tdsqlite3_value*);
-SQLITE_API tdsqlite3_int64 tdsqlite3_value_int64(tdsqlite3_value*);
-SQLITE_API void *tdsqlite3_value_pointer(tdsqlite3_value*, const char*);
-SQLITE_API const unsigned char *tdsqlite3_value_text(tdsqlite3_value*);
-SQLITE_API const void *tdsqlite3_value_text16(tdsqlite3_value*);
-SQLITE_API const void *tdsqlite3_value_text16le(tdsqlite3_value*);
-SQLITE_API const void *tdsqlite3_value_text16be(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_bytes(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_bytes16(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_type(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_numeric_type(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_nochange(tdsqlite3_value*);
-SQLITE_API int tdsqlite3_value_frombind(tdsqlite3_value*);
-
-/*
-** CAPI3REF: Finding The Subtype Of SQL Values
-** METHOD: tdsqlite3_value
-**
-** The tdsqlite3_value_subtype(V) function returns the subtype for
-** an [application-defined SQL function] argument V.  The subtype
-** information can be used to pass a limited amount of context from
-** one SQL function to another.  Use the [tdsqlite3_result_subtype()]
-** routine to set the subtype for the return value of an SQL function.
-*/
-SQLITE_API unsigned int tdsqlite3_value_subtype(tdsqlite3_value*);
-
-/*
-** CAPI3REF: Copy And Free SQL Values
-** METHOD: tdsqlite3_value
-**
-** ^The tdsqlite3_value_dup(V) interface makes a copy of the [tdsqlite3_value]
-** object D and returns a pointer to that copy.  ^The [tdsqlite3_value] returned
-** is a [protected tdsqlite3_value] object even if the input is not.
-** ^The tdsqlite3_value_dup(V) interface returns NULL if V is NULL or if a
-** memory allocation fails.
-**
-** ^The tdsqlite3_value_free(V) interface frees an [tdsqlite3_value] object
-** previously obtained from [tdsqlite3_value_dup()].  ^If V is a NULL pointer
-** then tdsqlite3_value_free(V) is a harmless no-op.
-*/
-SQLITE_API tdsqlite3_value *tdsqlite3_value_dup(const tdsqlite3_value*);
-SQLITE_API void tdsqlite3_value_free(tdsqlite3_value*);
-
-/*
-** CAPI3REF: Obtain Aggregate Function Context
-** METHOD: tdsqlite3_context
-**
-** Implementations of aggregate SQL functions use this
-** routine to allocate memory for storing their state.
-**
-** ^The first time the tdsqlite3_aggregate_context(C,N) routine is called 
-** for a particular aggregate function, SQLite allocates
-** N bytes of memory, zeroes out that memory, and returns a pointer
-** to the new memory. ^On second and subsequent calls to
-** tdsqlite3_aggregate_context() for the same aggregate function instance,
-** the same buffer is returned.  Sqlite3_aggregate_context() is normally
-** called once for each invocation of the xStep callback and then one
-** last time when the xFinal callback is invoked.  ^(When no rows match
-** an aggregate query, the xStep() callback of the aggregate function
-** implementation is never called and xFinal() is called exactly once.
-** In those cases, tdsqlite3_aggregate_context() might be called for the
-** first time from within xFinal().)^
-**
-** ^The tdsqlite3_aggregate_context(C,N) routine returns a NULL pointer 
-** when first called if N is less than or equal to zero or if a memory
-** allocate error occurs.
-**
-** ^(The amount of space allocated by tdsqlite3_aggregate_context(C,N) is
-** determined by the N parameter on first successful call.  Changing the
-** value of N in any subsequents call to tdsqlite3_aggregate_context() within
-** the same aggregate function instance will not resize the memory
-** allocation.)^  Within the xFinal callback, it is customary to set
-** N=0 in calls to tdsqlite3_aggregate_context(C,N) so that no 
-** pointless memory allocations occur.
-**
-** ^SQLite automatically frees the memory allocated by 
-** tdsqlite3_aggregate_context() when the aggregate query concludes.
-**
-** The first parameter must be a copy of the
-** [tdsqlite3_context | SQL function context] that is the first parameter
-** to the xStep or xFinal callback routine that implements the aggregate
-** function.
-**
-** This routine must be called from the same thread in which
-** the aggregate SQL function is running.
-*/
-SQLITE_API void *tdsqlite3_aggregate_context(tdsqlite3_context*, int nBytes);
-
-/*
-** CAPI3REF: User Data For Functions
-** METHOD: tdsqlite3_context
-**
-** ^The tdsqlite3_user_data() interface returns a copy of
-** the pointer that was the pUserData parameter (the 5th parameter)
-** of the [tdsqlite3_create_function()]
-** and [tdsqlite3_create_function16()] routines that originally
-** registered the application defined function.
-**
-** This routine must be called from the same thread in which
-** the application-defined function is running.
-*/
-SQLITE_API void *tdsqlite3_user_data(tdsqlite3_context*);
-
-/*
-** CAPI3REF: Database Connection For Functions
-** METHOD: tdsqlite3_context
-**
-** ^The tdsqlite3_context_db_handle() interface returns a copy of
-** the pointer to the [database connection] (the 1st parameter)
-** of the [tdsqlite3_create_function()]
-** and [tdsqlite3_create_function16()] routines that originally
-** registered the application defined function.
-*/
-SQLITE_API tdsqlite3 *tdsqlite3_context_db_handle(tdsqlite3_context*);
-
-/*
-** CAPI3REF: Function Auxiliary Data
-** METHOD: tdsqlite3_context
-**
-** These functions may be used by (non-aggregate) SQL functions to
-** associate metadata with argument values. If the same value is passed to
-** multiple invocations of the same SQL function during query execution, under
-** some circumstances the associated metadata may be preserved.  An example
-** of where this might be useful is in a regular-expression matching
-** function. The compiled version of the regular expression can be stored as
-** metadata associated with the pattern string.  
-** Then as long as the pattern string remains the same,
-** the compiled regular expression can be reused on multiple
-** invocations of the same function.
-**
-** ^The tdsqlite3_get_auxdata(C,N) interface returns a pointer to the metadata
-** associated by the tdsqlite3_set_auxdata(C,N,P,X) function with the Nth argument
-** value to the application-defined function.  ^N is zero for the left-most
-** function argument.  ^If there is no metadata
-** associated with the function argument, the tdsqlite3_get_auxdata(C,N) interface
-** returns a NULL pointer.
-**
-** ^The tdsqlite3_set_auxdata(C,N,P,X) interface saves P as metadata for the N-th
-** argument of the application-defined function.  ^Subsequent
-** calls to tdsqlite3_get_auxdata(C,N) return P from the most recent
-** tdsqlite3_set_auxdata(C,N,P,X) call if the metadata is still valid or
-** NULL if the metadata has been discarded.
-** ^After each call to tdsqlite3_set_auxdata(C,N,P,X) where X is not NULL,
-** SQLite will invoke the destructor function X with parameter P exactly
-** once, when the metadata is discarded.
-** SQLite is free to discard the metadata at any time, including: <ul>
-** <li> ^(when the corresponding function parameter changes)^, or
-** <li> ^(when [tdsqlite3_reset()] or [tdsqlite3_finalize()] is called for the
-**      SQL statement)^, or
-** <li> ^(when tdsqlite3_set_auxdata() is invoked again on the same
-**       parameter)^, or
-** <li> ^(during the original tdsqlite3_set_auxdata() call when a memory 
-**      allocation error occurs.)^ </ul>
-**
-** Note the last bullet in particular.  The destructor X in 
-** tdsqlite3_set_auxdata(C,N,P,X) might be called immediately, before the
-** tdsqlite3_set_auxdata() interface even returns.  Hence tdsqlite3_set_auxdata()
-** should be called near the end of the function implementation and the
-** function implementation should not make any use of P after
-** tdsqlite3_set_auxdata() has been called.
-**
-** ^(In practice, metadata is preserved between function calls for
-** function parameters that are compile-time constants, including literal
-** values and [parameters] and expressions composed from the same.)^
-**
-** The value of the N parameter to these interfaces should be non-negative.
-** Future enhancements may make use of negative N values to define new
-** kinds of function caching behavior.
-**
-** These routines must be called from the same thread in which
-** the SQL function is running.
-*/
-SQLITE_API void *tdsqlite3_get_auxdata(tdsqlite3_context*, int N);
-SQLITE_API void tdsqlite3_set_auxdata(tdsqlite3_context*, int N, void*, void (*)(void*));
-
-
-/*
-** CAPI3REF: Constants Defining Special Destructor Behavior
-**
-** These are special values for the destructor that is passed in as the
-** final argument to routines like [tdsqlite3_result_blob()].  ^If the destructor
-** argument is SQLITE_STATIC, it means that the content pointer is constant
-** and will never change.  It does not need to be destroyed.  ^The
-** SQLITE_TRANSIENT value means that the content will likely change in
-** the near future and that SQLite should make its own private copy of
-** the content before returning.
-**
-** The typedef is necessary to work around problems in certain
-** C++ compilers.
-*/
-typedef void (*tdsqlite3_destructor_type)(void*);
-#define SQLITE_STATIC      ((tdsqlite3_destructor_type)0)
-#define SQLITE_TRANSIENT   ((tdsqlite3_destructor_type)-1)
-
-/*
-** CAPI3REF: Setting The Result Of An SQL Function
-** METHOD: tdsqlite3_context
-**
-** These routines are used by the xFunc or xFinal callbacks that
-** implement SQL functions and aggregates.  See
-** [tdsqlite3_create_function()] and [tdsqlite3_create_function16()]
-** for additional information.
-**
-** These functions work very much like the [parameter binding] family of
-** functions used to bind values to host parameters in prepared statements.
-** Refer to the [SQL parameter] documentation for additional information.
-**
-** ^The tdsqlite3_result_blob() interface sets the result from
-** an application-defined function to be the BLOB whose content is pointed
-** to by the second parameter and which is N bytes long where N is the
-** third parameter.
-**
-** ^The tdsqlite3_result_zeroblob(C,N) and tdsqlite3_result_zeroblob64(C,N)
-** interfaces set the result of the application-defined function to be
-** a BLOB containing all zero bytes and N bytes in size.
-**
-** ^The tdsqlite3_result_double() interface sets the result from
-** an application-defined function to be a floating point value specified
-** by its 2nd argument.
-**
-** ^The tdsqlite3_result_error() and tdsqlite3_result_error16() functions
-** cause the implemented SQL function to throw an exception.
-** ^SQLite uses the string pointed to by the
-** 2nd parameter of tdsqlite3_result_error() or tdsqlite3_result_error16()
-** as the text of an error message.  ^SQLite interprets the error
-** message string from tdsqlite3_result_error() as UTF-8. ^SQLite
-** interprets the string from tdsqlite3_result_error16() as UTF-16 in native
-** byte order.  ^If the third parameter to tdsqlite3_result_error()
-** or tdsqlite3_result_error16() is negative then SQLite takes as the error
-** message all text up through the first zero character.
-** ^If the third parameter to tdsqlite3_result_error() or
-** tdsqlite3_result_error16() is non-negative then SQLite takes that many
-** bytes (not characters) from the 2nd parameter as the error message.
-** ^The tdsqlite3_result_error() and tdsqlite3_result_error16()
-** routines make a private copy of the error message text before
-** they return.  Hence, the calling function can deallocate or
-** modify the text after they return without harm.
-** ^The tdsqlite3_result_error_code() function changes the error code
-** returned by SQLite as a result of an error in a function.  ^By default,
-** the error code is SQLITE_ERROR.  ^A subsequent call to tdsqlite3_result_error()
-** or tdsqlite3_result_error16() resets the error code to SQLITE_ERROR.
-**
-** ^The tdsqlite3_result_error_toobig() interface causes SQLite to throw an
-** error indicating that a string or BLOB is too long to represent.
-**
-** ^The tdsqlite3_result_error_nomem() interface causes SQLite to throw an
-** error indicating that a memory allocation failed.
-**
-** ^The tdsqlite3_result_int() interface sets the return value
-** of the application-defined function to be the 32-bit signed integer
-** value given in the 2nd argument.
-** ^The tdsqlite3_result_int64() interface sets the return value
-** of the application-defined function to be the 64-bit signed integer
-** value given in the 2nd argument.
-**
-** ^The tdsqlite3_result_null() interface sets the return value
-** of the application-defined function to be NULL.
-**
-** ^The tdsqlite3_result_text(), tdsqlite3_result_text16(),
-** tdsqlite3_result_text16le(), and tdsqlite3_result_text16be() interfaces
-** set the return value of the application-defined function to be
-** a text string which is represented as UTF-8, UTF-16 native byte order,
-** UTF-16 little endian, or UTF-16 big endian, respectively.
-** ^The tdsqlite3_result_text64() interface sets the return value of an
-** application-defined function to be a text string in an encoding
-** specified by the fifth (and last) parameter, which must be one
-** of [SQLITE_UTF8], [SQLITE_UTF16], [SQLITE_UTF16BE], or [SQLITE_UTF16LE].
-** ^SQLite takes the text result from the application from
-** the 2nd parameter of the tdsqlite3_result_text* interfaces.
-** ^If the 3rd parameter to the tdsqlite3_result_text* interfaces
-** is negative, then SQLite takes result text from the 2nd parameter
-** through the first zero character.
-** ^If the 3rd parameter to the tdsqlite3_result_text* interfaces
-** is non-negative, then as many bytes (not characters) of the text
-** pointed to by the 2nd parameter are taken as the application-defined
-** function result.  If the 3rd parameter is non-negative, then it
-** must be the byte offset into the string where the NUL terminator would
-** appear if the string where NUL terminated.  If any NUL characters occur
-** in the string at a byte offset that is less than the value of the 3rd
-** parameter, then the resulting string will contain embedded NULs and the
-** result of expressions operating on strings with embedded NULs is undefined.
-** ^If the 4th parameter to the tdsqlite3_result_text* interfaces
-** or tdsqlite3_result_blob is a non-NULL pointer, then SQLite calls that
-** function as the destructor on the text or BLOB result when it has
-** finished using that result.
-** ^If the 4th parameter to the tdsqlite3_result_text* interfaces or to
-** tdsqlite3_result_blob is the special constant SQLITE_STATIC, then SQLite
-** assumes that the text or BLOB result is in constant space and does not
-** copy the content of the parameter nor call a destructor on the content
-** when it has finished using that result.
-** ^If the 4th parameter to the tdsqlite3_result_text* interfaces
-** or tdsqlite3_result_blob is the special constant SQLITE_TRANSIENT
-** then SQLite makes a copy of the result into space obtained
-** from [tdsqlite3_malloc()] before it returns.
-**
-** ^The tdsqlite3_result_value() interface sets the result of
-** the application-defined function to be a copy of the
-** [unprotected tdsqlite3_value] object specified by the 2nd parameter.  ^The
-** tdsqlite3_result_value() interface makes a copy of the [tdsqlite3_value]
-** so that the [tdsqlite3_value] specified in the parameter may change or
-** be deallocated after tdsqlite3_result_value() returns without harm.
-** ^A [protected tdsqlite3_value] object may always be used where an
-** [unprotected tdsqlite3_value] object is required, so either
-** kind of [tdsqlite3_value] object can be used with this interface.
-**
-** ^The tdsqlite3_result_pointer(C,P,T,D) interface sets the result to an
-** SQL NULL value, just like [tdsqlite3_result_null(C)], except that it
-** also associates the host-language pointer P or type T with that 
-** NULL value such that the pointer can be retrieved within an
-** [application-defined SQL function] using [tdsqlite3_value_pointer()].
-** ^If the D parameter is not NULL, then it is a pointer to a destructor
-** for the P parameter.  ^SQLite invokes D with P as its only argument
-** when SQLite is finished with P.  The T parameter should be a static
-** string and preferably a string literal. The tdsqlite3_result_pointer()
-** routine is part of the [pointer passing interface] added for SQLite 3.20.0.
-**
-** If these routines are called from within the different thread
-** than the one containing the application-defined function that received
-** the [tdsqlite3_context] pointer, the results are undefined.
-*/
-SQLITE_API void tdsqlite3_result_blob(tdsqlite3_context*, const void*, int, void(*)(void*));
-SQLITE_API void tdsqlite3_result_blob64(tdsqlite3_context*,const void*,
-                           tdsqlite3_uint64,void(*)(void*));
-SQLITE_API void tdsqlite3_result_double(tdsqlite3_context*, double);
-SQLITE_API void tdsqlite3_result_error(tdsqlite3_context*, const char*, int);
-SQLITE_API void tdsqlite3_result_error16(tdsqlite3_context*, const void*, int);
-SQLITE_API void tdsqlite3_result_error_toobig(tdsqlite3_context*);
-SQLITE_API void tdsqlite3_result_error_nomem(tdsqlite3_context*);
-SQLITE_API void tdsqlite3_result_error_code(tdsqlite3_context*, int);
-SQLITE_API void tdsqlite3_result_int(tdsqlite3_context*, int);
-SQLITE_API void tdsqlite3_result_int64(tdsqlite3_context*, tdsqlite3_int64);
-SQLITE_API void tdsqlite3_result_null(tdsqlite3_context*);
-SQLITE_API void tdsqlite3_result_text(tdsqlite3_context*, const char*, int, void(*)(void*));
-SQLITE_API void tdsqlite3_result_text64(tdsqlite3_context*, const char*,tdsqlite3_uint64,
-                           void(*)(void*), unsigned char encoding);
-SQLITE_API void tdsqlite3_result_text16(tdsqlite3_context*, const void*, int, void(*)(void*));
-SQLITE_API void tdsqlite3_result_text16le(tdsqlite3_context*, const void*, int,void(*)(void*));
-SQLITE_API void tdsqlite3_result_text16be(tdsqlite3_context*, const void*, int,void(*)(void*));
-SQLITE_API void tdsqlite3_result_value(tdsqlite3_context*, tdsqlite3_value*);
-SQLITE_API void tdsqlite3_result_pointer(tdsqlite3_context*, void*,const char*,void(*)(void*));
-SQLITE_API void tdsqlite3_result_zeroblob(tdsqlite3_context*, int n);
-SQLITE_API int tdsqlite3_result_zeroblob64(tdsqlite3_context*, tdsqlite3_uint64 n);
-
-
-/*
-** CAPI3REF: Setting The Subtype Of An SQL Function
-** METHOD: tdsqlite3_context
-**
-** The tdsqlite3_result_subtype(C,T) function causes the subtype of
-** the result from the [application-defined SQL function] with 
-** [tdsqlite3_context] C to be the value T.  Only the lower 8 bits 
-** of the subtype T are preserved in current versions of SQLite;
-** higher order bits are discarded.
-** The number of subtype bytes preserved by SQLite might increase
-** in future releases of SQLite.
-*/
-SQLITE_API void tdsqlite3_result_subtype(tdsqlite3_context*,unsigned int);
-
-/*
-** CAPI3REF: Define New Collating Sequences
-** METHOD: tdsqlite3
-**
-** ^These functions add, remove, or modify a [collation] associated
-** with the [database connection] specified as the first argument.
-**
-** ^The name of the collation is a UTF-8 string
-** for tdsqlite3_create_collation() and tdsqlite3_create_collation_v2()
-** and a UTF-16 string in native byte order for tdsqlite3_create_collation16().
-** ^Collation names that compare equal according to [tdsqlite3_strnicmp()] are
-** considered to be the same name.
-**
-** ^(The third argument (eTextRep) must be one of the constants:
-** <ul>
-** <li> [SQLITE_UTF8],
-** <li> [SQLITE_UTF16LE],
-** <li> [SQLITE_UTF16BE],
-** <li> [SQLITE_UTF16], or
-** <li> [SQLITE_UTF16_ALIGNED].
-** </ul>)^
-** ^The eTextRep argument determines the encoding of strings passed
-** to the collating function callback, xCompare.
-** ^The [SQLITE_UTF16] and [SQLITE_UTF16_ALIGNED] values for eTextRep
-** force strings to be UTF16 with native byte order.
-** ^The [SQLITE_UTF16_ALIGNED] value for eTextRep forces strings to begin
-** on an even byte address.
-**
-** ^The fourth argument, pArg, is an application data pointer that is passed
-** through as the first argument to the collating function callback.
-**
-** ^The fifth argument, xCompare, is a pointer to the collating function.
-** ^Multiple collating functions can be registered using the same name but
-** with different eTextRep parameters and SQLite will use whichever
-** function requires the least amount of data transformation.
-** ^If the xCompare argument is NULL then the collating function is
-** deleted.  ^When all collating functions having the same name are deleted,
-** that collation is no longer usable.
-**
-** ^The collating function callback is invoked with a copy of the pArg 
-** application data pointer and with two strings in the encoding specified
-** by the eTextRep argument.  The two integer parameters to the collating
-** function callback are the length of the two strings, in bytes. The collating
-** function must return an integer that is negative, zero, or positive
-** if the first string is less than, equal to, or greater than the second,
-** respectively.  A collating function must always return the same answer
-** given the same inputs.  If two or more collating functions are registered
-** to the same collation name (using different eTextRep values) then all
-** must give an equivalent answer when invoked with equivalent strings.
-** The collating function must obey the following properties for all
-** strings A, B, and C:
-**
-** <ol>
-** <li> If A==B then B==A.
-** <li> If A==B and B==C then A==C.
-** <li> If A&lt;B THEN B&gt;A.
-** <li> If A&lt;B and B&lt;C then A&lt;C.
-** </ol>
-**
-** If a collating function fails any of the above constraints and that
-** collating function is registered and used, then the behavior of SQLite
-** is undefined.
-**
-** ^The tdsqlite3_create_collation_v2() works like tdsqlite3_create_collation()
-** with the addition that the xDestroy callback is invoked on pArg when
-** the collating function is deleted.
-** ^Collating functions are deleted when they are overridden by later
-** calls to the collation creation functions or when the
-** [database connection] is closed using [tdsqlite3_close()].
-**
-** ^The xDestroy callback is <u>not</u> called if the 
-** tdsqlite3_create_collation_v2() function fails.  Applications that invoke
-** tdsqlite3_create_collation_v2() with a non-NULL xDestroy argument should 
-** check the return code and dispose of the application data pointer
-** themselves rather than expecting SQLite to deal with it for them.
-** This is different from every other SQLite interface.  The inconsistency 
-** is unfortunate but cannot be changed without breaking backwards 
-** compatibility.
-**
-** See also:  [tdsqlite3_collation_needed()] and [tdsqlite3_collation_needed16()].
-*/
-SQLITE_API int tdsqlite3_create_collation(
-  tdsqlite3*, 
-  const char *zName, 
-  int eTextRep, 
-  void *pArg,
-  int(*xCompare)(void*,int,const void*,int,const void*)
-);
-SQLITE_API int tdsqlite3_create_collation_v2(
-  tdsqlite3*, 
-  const char *zName, 
-  int eTextRep, 
-  void *pArg,
-  int(*xCompare)(void*,int,const void*,int,const void*),
-  void(*xDestroy)(void*)
-);
-SQLITE_API int tdsqlite3_create_collation16(
-  tdsqlite3*, 
-  const void *zName,
-  int eTextRep, 
-  void *pArg,
-  int(*xCompare)(void*,int,const void*,int,const void*)
-);
-
-/*
-** CAPI3REF: Collation Needed Callbacks
-** METHOD: tdsqlite3
-**
-** ^To avoid having to register all collation sequences before a database
-** can be used, a single callback function may be registered with the
-** [database connection] to be invoked whenever an undefined collation
-** sequence is required.
-**
-** ^If the function is registered using the tdsqlite3_collation_needed() API,
-** then it is passed the names of undefined collation sequences as strings
-** encoded in UTF-8. ^If tdsqlite3_collation_needed16() is used,
-** the names are passed as UTF-16 in machine native byte order.
-** ^A call to either function replaces the existing collation-needed callback.
-**
-** ^(When the callback is invoked, the first argument passed is a copy
-** of the second argument to tdsqlite3_collation_needed() or
-** tdsqlite3_collation_needed16().  The second argument is the database
-** connection.  The third argument is one of [SQLITE_UTF8], [SQLITE_UTF16BE],
-** or [SQLITE_UTF16LE], indicating the most desirable form of the collation
-** sequence function required.  The fourth parameter is the name of the
-** required collation sequence.)^
-**
-** The callback function should register the desired collation using
-** [tdsqlite3_create_collation()], [tdsqlite3_create_collation16()], or
-** [tdsqlite3_create_collation_v2()].
-*/
-SQLITE_API int tdsqlite3_collation_needed(
-  tdsqlite3*, 
-  void*, 
-  void(*)(void*,tdsqlite3*,int eTextRep,const char*)
-);
-SQLITE_API int tdsqlite3_collation_needed16(
-  tdsqlite3*, 
-  void*,
-  void(*)(void*,tdsqlite3*,int eTextRep,const void*)
-);
-
-#ifdef SQLITE_HAS_CODEC
-/*
-** Specify the key for an encrypted database.  This routine should be
-** called right after tdsqlite3_open().
-**
-** The code to implement this API is not available in the public release
-** of SQLite.
-*/
-SQLITE_API int tdsqlite3_key(
-  tdsqlite3 *db,                   /* Database to be rekeyed */
-  const void *pKey, int nKey     /* The key */
-);
-SQLITE_API int tdsqlite3_key_v2(
-  tdsqlite3 *db,                   /* Database to be rekeyed */
-  const char *zDbName,           /* Name of the database */
-  const void *pKey, int nKey     /* The key */
-);
-
-/*
-** Change the key on an open database.  If the current database is not
-** encrypted, this routine will encrypt it.  If pNew==0 or nNew==0, the
-** database is decrypted.
-**
-** The code to implement this API is not available in the public release
-** of SQLite.
-*/
-/* BEGIN SQLCIPHER
-   SQLCipher usage note:
-
-   If the current database is plaintext SQLCipher will NOT encrypt it.
-   If the current database is encrypted and pNew==0 or nNew==0, SQLCipher
-   will NOT decrypt it.
-
-   This routine will ONLY work on an already encrypted database in order
-   to change the key.
-
-   Conversion from plaintext-to-encrypted or encrypted-to-plaintext should
-   use an ATTACHed database and the sqlcipher_export() convenience function
-   as per the SQLCipher Documentation.
-
-   END SQLCIPHER
-*/
-SQLITE_API int tdsqlite3_rekey(
-  tdsqlite3 *db,                   /* Database to be rekeyed */
-  const void *pKey, int nKey     /* The new key */
-);
-SQLITE_API int tdsqlite3_rekey_v2(
-  tdsqlite3 *db,                   /* Database to be rekeyed */
-  const char *zDbName,           /* Name of the database */
-  const void *pKey, int nKey     /* The new key */
-);
-
-/*
-** Specify the activation key for a SEE database.  Unless 
-** activated, none of the SEE routines will work.
-*/
-SQLITE_API void tdsqlite3_activate_see(
-  const char *zPassPhrase        /* Activation phrase */
-);
-#endif
-
-#ifdef SQLITE_ENABLE_CEROD
-/*
-** Specify the activation key for a CEROD database.  Unless 
-** activated, none of the CEROD routines will work.
-*/
-SQLITE_API void tdsqlite3_activate_cerod(
-  const char *zPassPhrase        /* Activation phrase */
-);
-#endif
-
-/*
-** CAPI3REF: Suspend Execution For A Short Time
-**
-** The tdsqlite3_sleep() function causes the current thread to suspend execution
-** for at least a number of milliseconds specified in its parameter.
-**
-** If the operating system does not support sleep requests with
-** millisecond time resolution, then the time will be rounded up to
-** the nearest second. The number of milliseconds of sleep actually
-** requested from the operating system is returned.
-**
-** ^SQLite implements this interface by calling the xSleep()
-** method of the default [tdsqlite3_vfs] object.  If the xSleep() method
-** of the default VFS is not implemented correctly, or not implemented at
-** all, then the behavior of tdsqlite3_sleep() may deviate from the description
-** in the previous paragraphs.
-*/
-SQLITE_API int tdsqlite3_sleep(int);
-
-/*
-** CAPI3REF: Name Of The Folder Holding Temporary Files
-**
-** ^(If this global variable is made to point to a string which is
-** the name of a folder (a.k.a. directory), then all temporary files
-** created by SQLite when using a built-in [tdsqlite3_vfs | VFS]
-** will be placed in that directory.)^  ^If this variable
-** is a NULL pointer, then SQLite performs a search for an appropriate
-** temporary file directory.
-**
-** Applications are strongly discouraged from using this global variable.
-** It is required to set a temporary folder on Windows Runtime (WinRT).
-** But for all other platforms, it is highly recommended that applications
-** neither read nor write this variable.  This global variable is a relic
-** that exists for backwards compatibility of legacy applications and should
-** be avoided in new projects.
-**
-** It is not safe to read or modify this variable in more than one
-** thread at a time.  It is not safe to read or modify this variable
-** if a [database connection] is being used at the same time in a separate
-** thread.
-** It is intended that this variable be set once
-** as part of process initialization and before any SQLite interface
-** routines have been called and that this variable remain unchanged
-** thereafter.
-**
-** ^The [temp_store_directory pragma] may modify this variable and cause
-** it to point to memory obtained from [tdsqlite3_malloc].  ^Furthermore,
-** the [temp_store_directory pragma] always assumes that any string
-** that this variable points to is held in memory obtained from 
-** [tdsqlite3_malloc] and the pragma may attempt to free that memory
-** using [tdsqlite3_free].
-** Hence, if this variable is modified directly, either it should be
-** made NULL or made to point to memory obtained from [tdsqlite3_malloc]
-** or else the use of the [temp_store_directory pragma] should be avoided.
-** Except when requested by the [temp_store_directory pragma], SQLite
-** does not free the memory that tdsqlite3_temp_directory points to.  If
-** the application wants that memory to be freed, it must do
-** so itself, taking care to only do so after all [database connection]
-** objects have been destroyed.
-**
-** <b>Note to Windows Runtime users:</b>  The temporary directory must be set
-** prior to calling [tdsqlite3_open] or [tdsqlite3_open_v2].  Otherwise, various
-** features that require the use of temporary files may fail.  Here is an
-** example of how to do this using C++ with the Windows Runtime:
-**
-** <blockquote><pre>
-** LPCWSTR zPath = Windows::Storage::ApplicationData::Current->
-** &nbsp;     TemporaryFolder->Path->Data();
-** char zPathBuf&#91;MAX_PATH + 1&#93;;
-** memset(zPathBuf, 0, sizeof(zPathBuf));
-** WideCharToMultiByte(CP_UTF8, 0, zPath, -1, zPathBuf, sizeof(zPathBuf),
-** &nbsp;     NULL, NULL);
-** tdsqlite3_temp_directory = tdsqlite3_mprintf("%s", zPathBuf);
-** </pre></blockquote>
-*/
-SQLITE_API SQLITE_EXTERN char *tdsqlite3_temp_directory;
-
-/*
-** CAPI3REF: Name Of The Folder Holding Database Files
-**
-** ^(If this global variable is made to point to a string which is
-** the name of a folder (a.k.a. directory), then all database files
-** specified with a relative pathname and created or accessed by
-** SQLite when using a built-in windows [tdsqlite3_vfs | VFS] will be assumed
-** to be relative to that directory.)^ ^If this variable is a NULL
-** pointer, then SQLite assumes that all database files specified
-** with a relative pathname are relative to the current directory
-** for the process.  Only the windows VFS makes use of this global
-** variable; it is ignored by the unix VFS.
-**
-** Changing the value of this variable while a database connection is
-** open can result in a corrupt database.
-**
-** It is not safe to read or modify this variable in more than one
-** thread at a time.  It is not safe to read or modify this variable
-** if a [database connection] is being used at the same time in a separate
-** thread.
-** It is intended that this variable be set once
-** as part of process initialization and before any SQLite interface
-** routines have been called and that this variable remain unchanged
-** thereafter.
-**
-** ^The [data_store_directory pragma] may modify this variable and cause
-** it to point to memory obtained from [tdsqlite3_malloc].  ^Furthermore,
-** the [data_store_directory pragma] always assumes that any string
-** that this variable points to is held in memory obtained from 
-** [tdsqlite3_malloc] and the pragma may attempt to free that memory
-** using [tdsqlite3_free].
-** Hence, if this variable is modified directly, either it should be
-** made NULL or made to point to memory obtained from [tdsqlite3_malloc]
-** or else the use of the [data_store_directory pragma] should be avoided.
-*/
-SQLITE_API SQLITE_EXTERN char *tdsqlite3_data_directory;
-
-/*
-** CAPI3REF: Win32 Specific Interface
-**
-** These interfaces are available only on Windows.  The
-** [tdsqlite3_win32_set_directory] interface is used to set the value associated
-** with the [tdsqlite3_temp_directory] or [tdsqlite3_data_directory] variable, to
-** zValue, depending on the value of the type parameter.  The zValue parameter
-** should be NULL to cause the previous value to be freed via [tdsqlite3_free];
-** a non-NULL value will be copied into memory obtained from [tdsqlite3_malloc]
-** prior to being used.  The [tdsqlite3_win32_set_directory] interface returns
-** [SQLITE_OK] to indicate success, [SQLITE_ERROR] if the type is unsupported,
-** or [SQLITE_NOMEM] if memory could not be allocated.  The value of the
-** [tdsqlite3_data_directory] variable is intended to act as a replacement for
-** the current directory on the sub-platforms of Win32 where that concept is
-** not present, e.g. WinRT and UWP.  The [tdsqlite3_win32_set_directory8] and
-** [tdsqlite3_win32_set_directory16] interfaces behave exactly the same as the
-** tdsqlite3_win32_set_directory interface except the string parameter must be
-** UTF-8 or UTF-16, respectively.
-*/
-SQLITE_API int tdsqlite3_win32_set_directory(
-  unsigned long type, /* Identifier for directory being set or reset */
-  void *zValue        /* New value for directory being set or reset */
-);
-SQLITE_API int tdsqlite3_win32_set_directory8(unsigned long type, const char *zValue);
-SQLITE_API int tdsqlite3_win32_set_directory16(unsigned long type, const void *zValue);
-
-/*
-** CAPI3REF: Win32 Directory Types
-**
-** These macros are only available on Windows.  They define the allowed values
-** for the type argument to the [tdsqlite3_win32_set_directory] interface.
-*/
-#define SQLITE_WIN32_DATA_DIRECTORY_TYPE  1
-#define SQLITE_WIN32_TEMP_DIRECTORY_TYPE  2
-
-/*
-** CAPI3REF: Test For Auto-Commit Mode
-** KEYWORDS: {autocommit mode}
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_get_autocommit() interface returns non-zero or
-** zero if the given database connection is or is not in autocommit mode,
-** respectively.  ^Autocommit mode is on by default.
-** ^Autocommit mode is disabled by a [BEGIN] statement.
-** ^Autocommit mode is re-enabled by a [COMMIT] or [ROLLBACK].
-**
-** If certain kinds of errors occur on a statement within a multi-statement
-** transaction (errors including [SQLITE_FULL], [SQLITE_IOERR],
-** [SQLITE_NOMEM], [SQLITE_BUSY], and [SQLITE_INTERRUPT]) then the
-** transaction might be rolled back automatically.  The only way to
-** find out whether SQLite automatically rolled back the transaction after
-** an error is to use this function.
-**
-** If another thread changes the autocommit status of the database
-** connection while this routine is running, then the return value
-** is undefined.
-*/
-SQLITE_API int tdsqlite3_get_autocommit(tdsqlite3*);
-
-/*
-** CAPI3REF: Find The Database Handle Of A Prepared Statement
-** METHOD: tdsqlite3_stmt
-**
-** ^The tdsqlite3_db_handle interface returns the [database connection] handle
-** to which a [prepared statement] belongs.  ^The [database connection]
-** returned by tdsqlite3_db_handle is the same [database connection]
-** that was the first argument
-** to the [tdsqlite3_prepare_v2()] call (or its variants) that was used to
-** create the statement in the first place.
-*/
-SQLITE_API tdsqlite3 *tdsqlite3_db_handle(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Return The Filename For A Database Connection
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_db_filename(D,N) interface returns a pointer to the filename
-** associated with database N of connection D.
-** ^If there is no attached database N on the database
-** connection D, or if database N is a temporary or in-memory database, then
-** this function will return either a NULL pointer or an empty string.
-**
-** ^The string value returned by this routine is owned and managed by
-** the database connection.  ^The value will be valid until the database N
-** is [DETACH]-ed or until the database connection closes.
-**
-** ^The filename returned by this function is the output of the
-** xFullPathname method of the [VFS].  ^In other words, the filename
-** will be an absolute pathname, even if the filename used
-** to open the database originally was a URI or relative pathname.
-**
-** If the filename pointer returned by this routine is not NULL, then it
-** can be used as the filename input parameter to these routines:
-** <ul>
-** <li> [tdsqlite3_uri_parameter()]
-** <li> [tdsqlite3_uri_boolean()]
-** <li> [tdsqlite3_uri_int64()]
-** <li> [tdsqlite3_filename_database()]
-** <li> [tdsqlite3_filename_journal()]
-** <li> [tdsqlite3_filename_wal()]
-** </ul>
-*/
-SQLITE_API const char *tdsqlite3_db_filename(tdsqlite3 *db, const char *zDbName);
-
-/*
-** CAPI3REF: Determine if a database is read-only
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_db_readonly(D,N) interface returns 1 if the database N
-** of connection D is read-only, 0 if it is read/write, or -1 if N is not
-** the name of a database on connection D.
-*/
-SQLITE_API int tdsqlite3_db_readonly(tdsqlite3 *db, const char *zDbName);
-
-/*
-** CAPI3REF: Find the next prepared statement
-** METHOD: tdsqlite3
-**
-** ^This interface returns a pointer to the next [prepared statement] after
-** pStmt associated with the [database connection] pDb.  ^If pStmt is NULL
-** then this interface returns a pointer to the first prepared statement
-** associated with the database connection pDb.  ^If no prepared statement
-** satisfies the conditions of this routine, it returns NULL.
-**
-** The [database connection] pointer D in a call to
-** [tdsqlite3_next_stmt(D,S)] must refer to an open database
-** connection and in particular must not be a NULL pointer.
-*/
-SQLITE_API tdsqlite3_stmt *tdsqlite3_next_stmt(tdsqlite3 *pDb, tdsqlite3_stmt *pStmt);
-
-/*
-** CAPI3REF: Commit And Rollback Notification Callbacks
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_commit_hook() interface registers a callback
-** function to be invoked whenever a transaction is [COMMIT | committed].
-** ^Any callback set by a previous call to tdsqlite3_commit_hook()
-** for the same database connection is overridden.
-** ^The tdsqlite3_rollback_hook() interface registers a callback
-** function to be invoked whenever a transaction is [ROLLBACK | rolled back].
-** ^Any callback set by a previous call to tdsqlite3_rollback_hook()
-** for the same database connection is overridden.
-** ^The pArg argument is passed through to the callback.
-** ^If the callback on a commit hook function returns non-zero,
-** then the commit is converted into a rollback.
-**
-** ^The tdsqlite3_commit_hook(D,C,P) and tdsqlite3_rollback_hook(D,C,P) functions
-** return the P argument from the previous call of the same function
-** on the same [database connection] D, or NULL for
-** the first call for each function on D.
-**
-** The commit and rollback hook callbacks are not reentrant.
-** The callback implementation must not do anything that will modify
-** the database connection that invoked the callback.  Any actions
-** to modify the database connection must be deferred until after the
-** completion of the [tdsqlite3_step()] call that triggered the commit
-** or rollback hook in the first place.
-** Note that running any other SQL statements, including SELECT statements,
-** or merely calling [tdsqlite3_prepare_v2()] and [tdsqlite3_step()] will modify
-** the database connections for the meaning of "modify" in this paragraph.
-**
-** ^Registering a NULL function disables the callback.
-**
-** ^When the commit hook callback routine returns zero, the [COMMIT]
-** operation is allowed to continue normally.  ^If the commit hook
-** returns non-zero, then the [COMMIT] is converted into a [ROLLBACK].
-** ^The rollback hook is invoked on a rollback that results from a commit
-** hook returning non-zero, just as it would be with any other rollback.
-**
-** ^For the purposes of this API, a transaction is said to have been
-** rolled back if an explicit "ROLLBACK" statement is executed, or
-** an error or constraint causes an implicit rollback to occur.
-** ^The rollback callback is not invoked if a transaction is
-** automatically rolled back because the database connection is closed.
-**
-** See also the [tdsqlite3_update_hook()] interface.
-*/
-SQLITE_API void *tdsqlite3_commit_hook(tdsqlite3*, int(*)(void*), void*);
-SQLITE_API void *tdsqlite3_rollback_hook(tdsqlite3*, void(*)(void *), void*);
-
-/*
-** CAPI3REF: Data Change Notification Callbacks
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_update_hook() interface registers a callback function
-** with the [database connection] identified by the first argument
-** to be invoked whenever a row is updated, inserted or deleted in
-** a [rowid table].
-** ^Any callback set by a previous call to this function
-** for the same database connection is overridden.
-**
-** ^The second argument is a pointer to the function to invoke when a
-** row is updated, inserted or deleted in a rowid table.
-** ^The first argument to the callback is a copy of the third argument
-** to tdsqlite3_update_hook().
-** ^The second callback argument is one of [SQLITE_INSERT], [SQLITE_DELETE],
-** or [SQLITE_UPDATE], depending on the operation that caused the callback
-** to be invoked.
-** ^The third and fourth arguments to the callback contain pointers to the
-** database and table name containing the affected row.
-** ^The final callback parameter is the [rowid] of the row.
-** ^In the case of an update, this is the [rowid] after the update takes place.
-**
-** ^(The update hook is not invoked when internal system tables are
-** modified (i.e. sqlite_master and sqlite_sequence).)^
-** ^The update hook is not invoked when [WITHOUT ROWID] tables are modified.
-**
-** ^In the current implementation, the update hook
-** is not invoked when conflicting rows are deleted because of an
-** [ON CONFLICT | ON CONFLICT REPLACE] clause.  ^Nor is the update hook
-** invoked when rows are deleted using the [truncate optimization].
-** The exceptions defined in this paragraph might change in a future
-** release of SQLite.
-**
-** The update hook implementation must not do anything that will modify
-** the database connection that invoked the update hook.  Any actions
-** to modify the database connection must be deferred until after the
-** completion of the [tdsqlite3_step()] call that triggered the update hook.
-** Note that [tdsqlite3_prepare_v2()] and [tdsqlite3_step()] both modify their
-** database connections for the meaning of "modify" in this paragraph.
-**
-** ^The tdsqlite3_update_hook(D,C,P) function
-** returns the P argument from the previous call
-** on the same [database connection] D, or NULL for
-** the first call on D.
-**
-** See also the [tdsqlite3_commit_hook()], [tdsqlite3_rollback_hook()],
-** and [tdsqlite3_preupdate_hook()] interfaces.
-*/
-SQLITE_API void *tdsqlite3_update_hook(
-  tdsqlite3*, 
-  void(*)(void *,int ,char const *,char const *,tdsqlite3_int64),
-  void*
-);
-
-/*
-** CAPI3REF: Enable Or Disable Shared Pager Cache
-**
-** ^(This routine enables or disables the sharing of the database cache
-** and schema data structures between [database connection | connections]
-** to the same database. Sharing is enabled if the argument is true
-** and disabled if the argument is false.)^
-**
-** ^Cache sharing is enabled and disabled for an entire process.
-** This is a change as of SQLite [version 3.5.0] ([dateof:3.5.0]). 
-** In prior versions of SQLite,
-** sharing was enabled or disabled for each thread separately.
-**
-** ^(The cache sharing mode set by this interface effects all subsequent
-** calls to [tdsqlite3_open()], [tdsqlite3_open_v2()], and [tdsqlite3_open16()].
-** Existing database connections continue to use the sharing mode
-** that was in effect at the time they were opened.)^
-**
-** ^(This routine returns [SQLITE_OK] if shared cache was enabled or disabled
-** successfully.  An [error code] is returned otherwise.)^
-**
-** ^Shared cache is disabled by default. It is recommended that it stay
-** that way.  In other words, do not use this routine.  This interface
-** continues to be provided for historical compatibility, but its use is
-** discouraged.  Any use of shared cache is discouraged.  If shared cache
-** must be used, it is recommended that shared cache only be enabled for
-** individual database connections using the [tdsqlite3_open_v2()] interface
-** with the [SQLITE_OPEN_SHAREDCACHE] flag.
-**
-** Note: This method is disabled on MacOS X 10.7 and iOS version 5.0
-** and will always return SQLITE_MISUSE. On those systems, 
-** shared cache mode should be enabled per-database connection via 
-** [tdsqlite3_open_v2()] with [SQLITE_OPEN_SHAREDCACHE].
-**
-** This interface is threadsafe on processors where writing a
-** 32-bit integer is atomic.
-**
-** See Also:  [SQLite Shared-Cache Mode]
-*/
-SQLITE_API int tdsqlite3_enable_shared_cache(int);
-
-/*
-** CAPI3REF: Attempt To Free Heap Memory
-**
-** ^The tdsqlite3_release_memory() interface attempts to free N bytes
-** of heap memory by deallocating non-essential memory allocations
-** held by the database library.   Memory used to cache database
-** pages to improve performance is an example of non-essential memory.
-** ^tdsqlite3_release_memory() returns the number of bytes actually freed,
-** which might be more or less than the amount requested.
-** ^The tdsqlite3_release_memory() routine is a no-op returning zero
-** if SQLite is not compiled with [SQLITE_ENABLE_MEMORY_MANAGEMENT].
-**
-** See also: [tdsqlite3_db_release_memory()]
-*/
-SQLITE_API int tdsqlite3_release_memory(int);
-
-/*
-** CAPI3REF: Free Memory Used By A Database Connection
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_db_release_memory(D) interface attempts to free as much heap
-** memory as possible from database connection D. Unlike the
-** [tdsqlite3_release_memory()] interface, this interface is in effect even
-** when the [SQLITE_ENABLE_MEMORY_MANAGEMENT] compile-time option is
-** omitted.
-**
-** See also: [tdsqlite3_release_memory()]
-*/
-SQLITE_API int tdsqlite3_db_release_memory(tdsqlite3*);
-
-/*
-** CAPI3REF: Impose A Limit On Heap Size
-**
-** These interfaces impose limits on the amount of heap memory that will be
-** by all database connections within a single process.
-**
-** ^The tdsqlite3_soft_heap_limit64() interface sets and/or queries the
-** soft limit on the amount of heap memory that may be allocated by SQLite.
-** ^SQLite strives to keep heap memory utilization below the soft heap
-** limit by reducing the number of pages held in the page cache
-** as heap memory usages approaches the limit.
-** ^The soft heap limit is "soft" because even though SQLite strives to stay
-** below the limit, it will exceed the limit rather than generate
-** an [SQLITE_NOMEM] error.  In other words, the soft heap limit 
-** is advisory only.
-**
-** ^The tdsqlite3_hard_heap_limit64(N) interface sets a hard upper bound of
-** N bytes on the amount of memory that will be allocated.  ^The
-** tdsqlite3_hard_heap_limit64(N) interface is similar to
-** tdsqlite3_soft_heap_limit64(N) except that memory allocations will fail
-** when the hard heap limit is reached.
-**
-** ^The return value from both tdsqlite3_soft_heap_limit64() and
-** tdsqlite3_hard_heap_limit64() is the size of
-** the heap limit prior to the call, or negative in the case of an
-** error.  ^If the argument N is negative
-** then no change is made to the heap limit.  Hence, the current
-** size of heap limits can be determined by invoking
-** tdsqlite3_soft_heap_limit64(-1) or tdsqlite3_hard_heap_limit(-1).
-**
-** ^Setting the heap limits to zero disables the heap limiter mechanism.
-**
-** ^The soft heap limit may not be greater than the hard heap limit.
-** ^If the hard heap limit is enabled and if tdsqlite3_soft_heap_limit(N)
-** is invoked with a value of N that is greater than the hard heap limit,
-** the the soft heap limit is set to the value of the hard heap limit.
-** ^The soft heap limit is automatically enabled whenever the hard heap
-** limit is enabled. ^When tdsqlite3_hard_heap_limit64(N) is invoked and
-** the soft heap limit is outside the range of 1..N, then the soft heap
-** limit is set to N.  ^Invoking tdsqlite3_soft_heap_limit64(0) when the
-** hard heap limit is enabled makes the soft heap limit equal to the
-** hard heap limit.
-**
-** The memory allocation limits can also be adjusted using
-** [PRAGMA soft_heap_limit] and [PRAGMA hard_heap_limit].
-**
-** ^(The heap limits are not enforced in the current implementation
-** if one or more of following conditions are true:
-**
-** <ul>
-** <li> The limit value is set to zero.
-** <li> Memory accounting is disabled using a combination of the
-**      [tdsqlite3_config]([SQLITE_CONFIG_MEMSTATUS],...) start-time option and
-**      the [SQLITE_DEFAULT_MEMSTATUS] compile-time option.
-** <li> An alternative page cache implementation is specified using
-**      [tdsqlite3_config]([SQLITE_CONFIG_PCACHE2],...).
-** <li> The page cache allocates from its own memory pool supplied
-**      by [tdsqlite3_config]([SQLITE_CONFIG_PAGECACHE],...) rather than
-**      from the heap.
-** </ul>)^
-**
-** The circumstances under which SQLite will enforce the heap limits may
-** changes in future releases of SQLite.
-*/
-SQLITE_API tdsqlite3_int64 tdsqlite3_soft_heap_limit64(tdsqlite3_int64 N);
-SQLITE_API tdsqlite3_int64 tdsqlite3_hard_heap_limit64(tdsqlite3_int64 N);
-
-/*
-** CAPI3REF: Deprecated Soft Heap Limit Interface
-** DEPRECATED
-**
-** This is a deprecated version of the [tdsqlite3_soft_heap_limit64()]
-** interface.  This routine is provided for historical compatibility
-** only.  All new applications should use the
-** [tdsqlite3_soft_heap_limit64()] interface rather than this one.
-*/
-SQLITE_API SQLITE_DEPRECATED void tdsqlite3_soft_heap_limit(int N);
-
-
-/*
-** CAPI3REF: Extract Metadata About A Column Of A Table
-** METHOD: tdsqlite3
-**
-** ^(The tdsqlite3_table_column_metadata(X,D,T,C,....) routine returns
-** information about column C of table T in database D
-** on [database connection] X.)^  ^The tdsqlite3_table_column_metadata()
-** interface returns SQLITE_OK and fills in the non-NULL pointers in
-** the final five arguments with appropriate values if the specified
-** column exists.  ^The tdsqlite3_table_column_metadata() interface returns
-** SQLITE_ERROR if the specified column does not exist.
-** ^If the column-name parameter to tdsqlite3_table_column_metadata() is a
-** NULL pointer, then this routine simply checks for the existence of the
-** table and returns SQLITE_OK if the table exists and SQLITE_ERROR if it
-** does not.  If the table name parameter T in a call to
-** tdsqlite3_table_column_metadata(X,D,T,C,...) is NULL then the result is
-** undefined behavior.
-**
-** ^The column is identified by the second, third and fourth parameters to
-** this function. ^(The second parameter is either the name of the database
-** (i.e. "main", "temp", or an attached database) containing the specified
-** table or NULL.)^ ^If it is NULL, then all attached databases are searched
-** for the table using the same algorithm used by the database engine to
-** resolve unqualified table references.
-**
-** ^The third and fourth parameters to this function are the table and column
-** name of the desired column, respectively.
-**
-** ^Metadata is returned by writing to the memory locations passed as the 5th
-** and subsequent parameters to this function. ^Any of these arguments may be
-** NULL, in which case the corresponding element of metadata is omitted.
-**
-** ^(<blockquote>
-** <table border="1">
-** <tr><th> Parameter <th> Output<br>Type <th>  Description
-**
-** <tr><td> 5th <td> const char* <td> Data type
-** <tr><td> 6th <td> const char* <td> Name of default collation sequence
-** <tr><td> 7th <td> int         <td> True if column has a NOT NULL constraint
-** <tr><td> 8th <td> int         <td> True if column is part of the PRIMARY KEY
-** <tr><td> 9th <td> int         <td> True if column is [AUTOINCREMENT]
-** </table>
-** </blockquote>)^
-**
-** ^The memory pointed to by the character pointers returned for the
-** declaration type and collation sequence is valid until the next
-** call to any SQLite API function.
-**
-** ^If the specified table is actually a view, an [error code] is returned.
-**
-** ^If the specified column is "rowid", "oid" or "_rowid_" and the table 
-** is not a [WITHOUT ROWID] table and an
-** [INTEGER PRIMARY KEY] column has been explicitly declared, then the output
-** parameters are set for the explicitly declared column. ^(If there is no
-** [INTEGER PRIMARY KEY] column, then the outputs
-** for the [rowid] are set as follows:
-**
-** <pre>
-**     data type: "INTEGER"
-**     collation sequence: "BINARY"
-**     not null: 0
-**     primary key: 1
-**     auto increment: 0
-** </pre>)^
-**
-** ^This function causes all database schemas to be read from disk and
-** parsed, if that has not already been done, and returns an error if
-** any errors are encountered while loading the schema.
-*/
-SQLITE_API int tdsqlite3_table_column_metadata(
-  tdsqlite3 *db,                /* Connection handle */
-  const char *zDbName,        /* Database name or NULL */
-  const char *zTableName,     /* Table name */
-  const char *zColumnName,    /* Column name */
-  char const **pzDataType,    /* OUTPUT: Declared data type */
-  char const **pzCollSeq,     /* OUTPUT: Collation sequence name */
-  int *pNotNull,              /* OUTPUT: True if NOT NULL constraint exists */
-  int *pPrimaryKey,           /* OUTPUT: True if column part of PK */
-  int *pAutoinc               /* OUTPUT: True if column is auto-increment */
-);
-
-/*
-** CAPI3REF: Load An Extension
-** METHOD: tdsqlite3
-**
-** ^This interface loads an SQLite extension library from the named file.
-**
-** ^The tdsqlite3_load_extension() interface attempts to load an
-** [SQLite extension] library contained in the file zFile.  If
-** the file cannot be loaded directly, attempts are made to load
-** with various operating-system specific extensions added.
-** So for example, if "samplelib" cannot be loaded, then names like
-** "samplelib.so" or "samplelib.dylib" or "samplelib.dll" might
-** be tried also.
-**
-** ^The entry point is zProc.
-** ^(zProc may be 0, in which case SQLite will try to come up with an
-** entry point name on its own.  It first tries "tdsqlite3_extension_init".
-** If that does not work, it constructs a name "tdsqlite3_X_init" where the
-** X is consists of the lower-case equivalent of all ASCII alphabetic
-** characters in the filename from the last "/" to the first following
-** "." and omitting any initial "lib".)^
-** ^The tdsqlite3_load_extension() interface returns
-** [SQLITE_OK] on success and [SQLITE_ERROR] if something goes wrong.
-** ^If an error occurs and pzErrMsg is not 0, then the
-** [tdsqlite3_load_extension()] interface shall attempt to
-** fill *pzErrMsg with error message text stored in memory
-** obtained from [tdsqlite3_malloc()]. The calling function
-** should free this memory by calling [tdsqlite3_free()].
-**
-** ^Extension loading must be enabled using
-** [tdsqlite3_enable_load_extension()] or
-** [tdsqlite3_db_config](db,[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION],1,NULL)
-** prior to calling this API,
-** otherwise an error will be returned.
-**
-** <b>Security warning:</b> It is recommended that the 
-** [SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION] method be used to enable only this
-** interface.  The use of the [tdsqlite3_enable_load_extension()] interface
-** should be avoided.  This will keep the SQL function [load_extension()]
-** disabled and prevent SQL injections from giving attackers
-** access to extension loading capabilities.
-**
-** See also the [load_extension() SQL function].
-*/
-SQLITE_API int tdsqlite3_load_extension(
-  tdsqlite3 *db,          /* Load the extension into this database connection */
-  const char *zFile,    /* Name of the shared library containing extension */
-  const char *zProc,    /* Entry point.  Derived from zFile if 0 */
-  char **pzErrMsg       /* Put error message here if not 0 */
-);
-
-/*
-** CAPI3REF: Enable Or Disable Extension Loading
-** METHOD: tdsqlite3
-**
-** ^So as not to open security holes in older applications that are
-** unprepared to deal with [extension loading], and as a means of disabling
-** [extension loading] while evaluating user-entered SQL, the following API
-** is provided to turn the [tdsqlite3_load_extension()] mechanism on and off.
-**
-** ^Extension loading is off by default.
-** ^Call the tdsqlite3_enable_load_extension() routine with onoff==1
-** to turn extension loading on and call it with onoff==0 to turn
-** it back off again.
-**
-** ^This interface enables or disables both the C-API
-** [tdsqlite3_load_extension()] and the SQL function [load_extension()].
-** ^(Use [tdsqlite3_db_config](db,[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION],..)
-** to enable or disable only the C-API.)^
-**
-** <b>Security warning:</b> It is recommended that extension loading
-** be enabled using the [SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION] method
-** rather than this interface, so the [load_extension()] SQL function
-** remains disabled. This will prevent SQL injections from giving attackers
-** access to extension loading capabilities.
-*/
-SQLITE_API int tdsqlite3_enable_load_extension(tdsqlite3 *db, int onoff);
-
-/*
-** CAPI3REF: Automatically Load Statically Linked Extensions
-**
-** ^This interface causes the xEntryPoint() function to be invoked for
-** each new [database connection] that is created.  The idea here is that
-** xEntryPoint() is the entry point for a statically linked [SQLite extension]
-** that is to be automatically loaded into all new database connections.
-**
-** ^(Even though the function prototype shows that xEntryPoint() takes
-** no arguments and returns void, SQLite invokes xEntryPoint() with three
-** arguments and expects an integer result as if the signature of the
-** entry point where as follows:
-**
-** <blockquote><pre>
-** &nbsp;  int xEntryPoint(
-** &nbsp;    tdsqlite3 *db,
-** &nbsp;    const char **pzErrMsg,
-** &nbsp;    const struct tdsqlite3_api_routines *pThunk
-** &nbsp;  );
-** </pre></blockquote>)^
-**
-** If the xEntryPoint routine encounters an error, it should make *pzErrMsg
-** point to an appropriate error message (obtained from [tdsqlite3_mprintf()])
-** and return an appropriate [error code].  ^SQLite ensures that *pzErrMsg
-** is NULL before calling the xEntryPoint().  ^SQLite will invoke
-** [tdsqlite3_free()] on *pzErrMsg after xEntryPoint() returns.  ^If any
-** xEntryPoint() returns an error, the [tdsqlite3_open()], [tdsqlite3_open16()],
-** or [tdsqlite3_open_v2()] call that provoked the xEntryPoint() will fail.
-**
-** ^Calling tdsqlite3_auto_extension(X) with an entry point X that is already
-** on the list of automatic extensions is a harmless no-op. ^No entry point
-** will be called more than once for each database connection that is opened.
-**
-** See also: [tdsqlite3_reset_auto_extension()]
-** and [tdsqlite3_cancel_auto_extension()]
-*/
-SQLITE_API int tdsqlite3_auto_extension(void(*xEntryPoint)(void));
-
-/*
-** CAPI3REF: Cancel Automatic Extension Loading
-**
-** ^The [tdsqlite3_cancel_auto_extension(X)] interface unregisters the
-** initialization routine X that was registered using a prior call to
-** [tdsqlite3_auto_extension(X)].  ^The [tdsqlite3_cancel_auto_extension(X)]
-** routine returns 1 if initialization routine X was successfully 
-** unregistered and it returns 0 if X was not on the list of initialization
-** routines.
-*/
-SQLITE_API int tdsqlite3_cancel_auto_extension(void(*xEntryPoint)(void));
-
-/*
-** CAPI3REF: Reset Automatic Extension Loading
-**
-** ^This interface disables all automatic extensions previously
-** registered using [tdsqlite3_auto_extension()].
-*/
-SQLITE_API void tdsqlite3_reset_auto_extension(void);
-
-/*
-** The interface to the virtual-table mechanism is currently considered
-** to be experimental.  The interface might change in incompatible ways.
-** If this is a problem for you, do not use the interface at this time.
-**
-** When the virtual-table mechanism stabilizes, we will declare the
-** interface fixed, support it indefinitely, and remove this comment.
-*/
-
-/*
-** Structures used by the virtual table interface
-*/
-typedef struct tdsqlite3_vtab tdsqlite3_vtab;
-typedef struct tdsqlite3_index_info tdsqlite3_index_info;
-typedef struct tdsqlite3_vtab_cursor tdsqlite3_vtab_cursor;
-typedef struct tdsqlite3_module tdsqlite3_module;
-
-/*
-** CAPI3REF: Virtual Table Object
-** KEYWORDS: tdsqlite3_module {virtual table module}
-**
-** This structure, sometimes called a "virtual table module", 
-** defines the implementation of a [virtual table].  
-** This structure consists mostly of methods for the module.
-**
-** ^A virtual table module is created by filling in a persistent
-** instance of this structure and passing a pointer to that instance
-** to [tdsqlite3_create_module()] or [tdsqlite3_create_module_v2()].
-** ^The registration remains valid until it is replaced by a different
-** module or until the [database connection] closes.  The content
-** of this structure must not change while it is registered with
-** any database connection.
-*/
-struct tdsqlite3_module {
-  int iVersion;
-  int (*xCreate)(tdsqlite3*, void *pAux,
-               int argc, const char *const*argv,
-               tdsqlite3_vtab **ppVTab, char**);
-  int (*xConnect)(tdsqlite3*, void *pAux,
-               int argc, const char *const*argv,
-               tdsqlite3_vtab **ppVTab, char**);
-  int (*xBestIndex)(tdsqlite3_vtab *pVTab, tdsqlite3_index_info*);
-  int (*xDisconnect)(tdsqlite3_vtab *pVTab);
-  int (*xDestroy)(tdsqlite3_vtab *pVTab);
-  int (*xOpen)(tdsqlite3_vtab *pVTab, tdsqlite3_vtab_cursor **ppCursor);
-  int (*xClose)(tdsqlite3_vtab_cursor*);
-  int (*xFilter)(tdsqlite3_vtab_cursor*, int idxNum, const char *idxStr,
-                int argc, tdsqlite3_value **argv);
-  int (*xNext)(tdsqlite3_vtab_cursor*);
-  int (*xEof)(tdsqlite3_vtab_cursor*);
-  int (*xColumn)(tdsqlite3_vtab_cursor*, tdsqlite3_context*, int);
-  int (*xRowid)(tdsqlite3_vtab_cursor*, tdsqlite3_int64 *pRowid);
-  int (*xUpdate)(tdsqlite3_vtab *, int, tdsqlite3_value **, tdsqlite3_int64 *);
-  int (*xBegin)(tdsqlite3_vtab *pVTab);
-  int (*xSync)(tdsqlite3_vtab *pVTab);
-  int (*xCommit)(tdsqlite3_vtab *pVTab);
-  int (*xRollback)(tdsqlite3_vtab *pVTab);
-  int (*xFindFunction)(tdsqlite3_vtab *pVtab, int nArg, const char *zName,
-                       void (**pxFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-                       void **ppArg);
-  int (*xRename)(tdsqlite3_vtab *pVtab, const char *zNew);
-  /* The methods above are in version 1 of the sqlite_module object. Those 
-  ** below are for version 2 and greater. */
-  int (*xSavepoint)(tdsqlite3_vtab *pVTab, int);
-  int (*xRelease)(tdsqlite3_vtab *pVTab, int);
-  int (*xRollbackTo)(tdsqlite3_vtab *pVTab, int);
-  /* The methods above are in versions 1 and 2 of the sqlite_module object.
-  ** Those below are for version 3 and greater. */
-  int (*xShadowName)(const char*);
-};
-
-/*
-** CAPI3REF: Virtual Table Indexing Information
-** KEYWORDS: tdsqlite3_index_info
-**
-** The tdsqlite3_index_info structure and its substructures is used as part
-** of the [virtual table] interface to
-** pass information into and receive the reply from the [xBestIndex]
-** method of a [virtual table module].  The fields under **Inputs** are the
-** inputs to xBestIndex and are read-only.  xBestIndex inserts its
-** results into the **Outputs** fields.
-**
-** ^(The aConstraint[] array records WHERE clause constraints of the form:
-**
-** <blockquote>column OP expr</blockquote>
-**
-** where OP is =, &lt;, &lt;=, &gt;, or &gt;=.)^  ^(The particular operator is
-** stored in aConstraint[].op using one of the
-** [SQLITE_INDEX_CONSTRAINT_EQ | SQLITE_INDEX_CONSTRAINT_ values].)^
-** ^(The index of the column is stored in
-** aConstraint[].iColumn.)^  ^(aConstraint[].usable is TRUE if the
-** expr on the right-hand side can be evaluated (and thus the constraint
-** is usable) and false if it cannot.)^
-**
-** ^The optimizer automatically inverts terms of the form "expr OP column"
-** and makes other simplifications to the WHERE clause in an attempt to
-** get as many WHERE clause terms into the form shown above as possible.
-** ^The aConstraint[] array only reports WHERE clause terms that are
-** relevant to the particular virtual table being queried.
-**
-** ^Information about the ORDER BY clause is stored in aOrderBy[].
-** ^Each term of aOrderBy records a column of the ORDER BY clause.
-**
-** The colUsed field indicates which columns of the virtual table may be
-** required by the current scan. Virtual table columns are numbered from
-** zero in the order in which they appear within the CREATE TABLE statement
-** passed to tdsqlite3_declare_vtab(). For the first 63 columns (columns 0-62),
-** the corresponding bit is set within the colUsed mask if the column may be
-** required by SQLite. If the table has at least 64 columns and any column
-** to the right of the first 63 is required, then bit 63 of colUsed is also
-** set. In other words, column iCol may be required if the expression
-** (colUsed & ((tdsqlite3_uint64)1 << (iCol>=63 ? 63 : iCol))) evaluates to 
-** non-zero.
-**
-** The [xBestIndex] method must fill aConstraintUsage[] with information
-** about what parameters to pass to xFilter.  ^If argvIndex>0 then
-** the right-hand side of the corresponding aConstraint[] is evaluated
-** and becomes the argvIndex-th entry in argv.  ^(If aConstraintUsage[].omit
-** is true, then the constraint is assumed to be fully handled by the
-** virtual table and might not be checked again by the byte code.)^ ^(The
-** aConstraintUsage[].omit flag is an optimization hint. When the omit flag
-** is left in its default setting of false, the constraint will always be
-** checked separately in byte code.  If the omit flag is change to true, then
-** the constraint may or may not be checked in byte code.  In other words,
-** when the omit flag is true there is no guarantee that the constraint will
-** not be checked again using byte code.)^
-**
-** ^The idxNum and idxPtr values are recorded and passed into the
-** [xFilter] method.
-** ^[tdsqlite3_free()] is used to free idxPtr if and only if
-** needToFreeIdxPtr is true.
-**
-** ^The orderByConsumed means that output from [xFilter]/[xNext] will occur in
-** the correct order to satisfy the ORDER BY clause so that no separate
-** sorting step is required.
-**
-** ^The estimatedCost value is an estimate of the cost of a particular
-** strategy. A cost of N indicates that the cost of the strategy is similar
-** to a linear scan of an SQLite table with N rows. A cost of log(N) 
-** indicates that the expense of the operation is similar to that of a
-** binary search on a unique indexed field of an SQLite table with N rows.
-**
-** ^The estimatedRows value is an estimate of the number of rows that
-** will be returned by the strategy.
-**
-** The xBestIndex method may optionally populate the idxFlags field with a 
-** mask of SQLITE_INDEX_SCAN_* flags. Currently there is only one such flag -
-** SQLITE_INDEX_SCAN_UNIQUE. If the xBestIndex method sets this flag, SQLite
-** assumes that the strategy may visit at most one row. 
-**
-** Additionally, if xBestIndex sets the SQLITE_INDEX_SCAN_UNIQUE flag, then
-** SQLite also assumes that if a call to the xUpdate() method is made as
-** part of the same statement to delete or update a virtual table row and the
-** implementation returns SQLITE_CONSTRAINT, then there is no need to rollback
-** any database changes. In other words, if the xUpdate() returns
-** SQLITE_CONSTRAINT, the database contents must be exactly as they were
-** before xUpdate was called. By contrast, if SQLITE_INDEX_SCAN_UNIQUE is not
-** set and xUpdate returns SQLITE_CONSTRAINT, any database changes made by
-** the xUpdate method are automatically rolled back by SQLite.
-**
-** IMPORTANT: The estimatedRows field was added to the tdsqlite3_index_info
-** structure for SQLite [version 3.8.2] ([dateof:3.8.2]). 
-** If a virtual table extension is
-** used with an SQLite version earlier than 3.8.2, the results of attempting 
-** to read or write the estimatedRows field are undefined (but are likely 
-** to include crashing the application). The estimatedRows field should
-** therefore only be used if [tdsqlite3_libversion_number()] returns a
-** value greater than or equal to 3008002. Similarly, the idxFlags field
-** was added for [version 3.9.0] ([dateof:3.9.0]). 
-** It may therefore only be used if
-** tdsqlite3_libversion_number() returns a value greater than or equal to
-** 3009000.
-*/
-struct tdsqlite3_index_info {
-  /* Inputs */
-  int nConstraint;           /* Number of entries in aConstraint */
-  struct tdsqlite3_index_constraint {
-     int iColumn;              /* Column constrained.  -1 for ROWID */
-     unsigned char op;         /* Constraint operator */
-     unsigned char usable;     /* True if this constraint is usable */
-     int iTermOffset;          /* Used internally - xBestIndex should ignore */
-  } *aConstraint;            /* Table of WHERE clause constraints */
-  int nOrderBy;              /* Number of terms in the ORDER BY clause */
-  struct tdsqlite3_index_orderby {
-     int iColumn;              /* Column number */
-     unsigned char desc;       /* True for DESC.  False for ASC. */
-  } *aOrderBy;               /* The ORDER BY clause */
-  /* Outputs */
-  struct tdsqlite3_index_constraint_usage {
-    int argvIndex;           /* if >0, constraint is part of argv to xFilter */
-    unsigned char omit;      /* Do not code a test for this constraint */
-  } *aConstraintUsage;
-  int idxNum;                /* Number used to identify the index */
-  char *idxStr;              /* String, possibly obtained from tdsqlite3_malloc */
-  int needToFreeIdxStr;      /* Free idxStr using tdsqlite3_free() if true */
-  int orderByConsumed;       /* True if output is already ordered */
-  double estimatedCost;           /* Estimated cost of using this index */
-  /* Fields below are only available in SQLite 3.8.2 and later */
-  tdsqlite3_int64 estimatedRows;    /* Estimated number of rows returned */
-  /* Fields below are only available in SQLite 3.9.0 and later */
-  int idxFlags;              /* Mask of SQLITE_INDEX_SCAN_* flags */
-  /* Fields below are only available in SQLite 3.10.0 and later */
-  tdsqlite3_uint64 colUsed;    /* Input: Mask of columns used by statement */
-};
-
-/*
-** CAPI3REF: Virtual Table Scan Flags
-**
-** Virtual table implementations are allowed to set the 
-** [tdsqlite3_index_info].idxFlags field to some combination of
-** these bits.
-*/
-#define SQLITE_INDEX_SCAN_UNIQUE      1     /* Scan visits at most 1 row */
-
-/*
-** CAPI3REF: Virtual Table Constraint Operator Codes
-**
-** These macros define the allowed values for the
-** [tdsqlite3_index_info].aConstraint[].op field.  Each value represents
-** an operator that is part of a constraint term in the wHERE clause of
-** a query that uses a [virtual table].
-*/
-#define SQLITE_INDEX_CONSTRAINT_EQ         2
-#define SQLITE_INDEX_CONSTRAINT_GT         4
-#define SQLITE_INDEX_CONSTRAINT_LE         8
-#define SQLITE_INDEX_CONSTRAINT_LT        16
-#define SQLITE_INDEX_CONSTRAINT_GE        32
-#define SQLITE_INDEX_CONSTRAINT_MATCH     64
-#define SQLITE_INDEX_CONSTRAINT_LIKE      65
-#define SQLITE_INDEX_CONSTRAINT_GLOB      66
-#define SQLITE_INDEX_CONSTRAINT_REGEXP    67
-#define SQLITE_INDEX_CONSTRAINT_NE        68
-#define SQLITE_INDEX_CONSTRAINT_ISNOT     69
-#define SQLITE_INDEX_CONSTRAINT_ISNOTNULL 70
-#define SQLITE_INDEX_CONSTRAINT_ISNULL    71
-#define SQLITE_INDEX_CONSTRAINT_IS        72
-#define SQLITE_INDEX_CONSTRAINT_FUNCTION 150
-
-/*
-** CAPI3REF: Register A Virtual Table Implementation
-** METHOD: tdsqlite3
-**
-** ^These routines are used to register a new [virtual table module] name.
-** ^Module names must be registered before
-** creating a new [virtual table] using the module and before using a
-** preexisting [virtual table] for the module.
-**
-** ^The module name is registered on the [database connection] specified
-** by the first parameter.  ^The name of the module is given by the 
-** second parameter.  ^The third parameter is a pointer to
-** the implementation of the [virtual table module].   ^The fourth
-** parameter is an arbitrary client data pointer that is passed through
-** into the [xCreate] and [xConnect] methods of the virtual table module
-** when a new virtual table is be being created or reinitialized.
-**
-** ^The tdsqlite3_create_module_v2() interface has a fifth parameter which
-** is a pointer to a destructor for the pClientData.  ^SQLite will
-** invoke the destructor function (if it is not NULL) when SQLite
-** no longer needs the pClientData pointer.  ^The destructor will also
-** be invoked if the call to tdsqlite3_create_module_v2() fails.
-** ^The tdsqlite3_create_module()
-** interface is equivalent to tdsqlite3_create_module_v2() with a NULL
-** destructor.
-**
-** ^If the third parameter (the pointer to the tdsqlite3_module object) is
-** NULL then no new module is create and any existing modules with the
-** same name are dropped.
-**
-** See also: [tdsqlite3_drop_modules()]
-*/
-SQLITE_API int tdsqlite3_create_module(
-  tdsqlite3 *db,               /* SQLite connection to register module with */
-  const char *zName,         /* Name of the module */
-  const tdsqlite3_module *p,   /* Methods for the module */
-  void *pClientData          /* Client data for xCreate/xConnect */
-);
-SQLITE_API int tdsqlite3_create_module_v2(
-  tdsqlite3 *db,               /* SQLite connection to register module with */
-  const char *zName,         /* Name of the module */
-  const tdsqlite3_module *p,   /* Methods for the module */
-  void *pClientData,         /* Client data for xCreate/xConnect */
-  void(*xDestroy)(void*)     /* Module destructor function */
-);
-
-/*
-** CAPI3REF: Remove Unnecessary Virtual Table Implementations
-** METHOD: tdsqlite3
-**
-** ^The tdsqlite3_drop_modules(D,L) interface removes all virtual
-** table modules from database connection D except those named on list L.
-** The L parameter must be either NULL or a pointer to an array of pointers
-** to strings where the array is terminated by a single NULL pointer.
-** ^If the L parameter is NULL, then all virtual table modules are removed.
-**
-** See also: [tdsqlite3_create_module()]
-*/
-SQLITE_API int tdsqlite3_drop_modules(
-  tdsqlite3 *db,                /* Remove modules from this connection */
-  const char **azKeep         /* Except, do not remove the ones named here */
-);
-
-/*
-** CAPI3REF: Virtual Table Instance Object
-** KEYWORDS: tdsqlite3_vtab
-**
-** Every [virtual table module] implementation uses a subclass
-** of this object to describe a particular instance
-** of the [virtual table].  Each subclass will
-** be tailored to the specific needs of the module implementation.
-** The purpose of this superclass is to define certain fields that are
-** common to all module implementations.
-**
-** ^Virtual tables methods can set an error message by assigning a
-** string obtained from [tdsqlite3_mprintf()] to zErrMsg.  The method should
-** take care that any prior string is freed by a call to [tdsqlite3_free()]
-** prior to assigning a new string to zErrMsg.  ^After the error message
-** is delivered up to the client application, the string will be automatically
-** freed by tdsqlite3_free() and the zErrMsg field will be zeroed.
-*/
-struct tdsqlite3_vtab {
-  const tdsqlite3_module *pModule;  /* The module for this virtual table */
-  int nRef;                       /* Number of open cursors */
-  char *zErrMsg;                  /* Error message from tdsqlite3_mprintf() */
-  /* Virtual table implementations will typically add additional fields */
-};
-
-/*
-** CAPI3REF: Virtual Table Cursor Object
-** KEYWORDS: tdsqlite3_vtab_cursor {virtual table cursor}
-**
-** Every [virtual table module] implementation uses a subclass of the
-** following structure to describe cursors that point into the
-** [virtual table] and are used
-** to loop through the virtual table.  Cursors are created using the
-** [tdsqlite3_module.xOpen | xOpen] method of the module and are destroyed
-** by the [tdsqlite3_module.xClose | xClose] method.  Cursors are used
-** by the [xFilter], [xNext], [xEof], [xColumn], and [xRowid] methods
-** of the module.  Each module implementation will define
-** the content of a cursor structure to suit its own needs.
-**
-** This superclass exists in order to define fields of the cursor that
-** are common to all implementations.
-*/
-struct tdsqlite3_vtab_cursor {
-  tdsqlite3_vtab *pVtab;      /* Virtual table of this cursor */
-  /* Virtual table implementations will typically add additional fields */
-};
-
-/*
-** CAPI3REF: Declare The Schema Of A Virtual Table
-**
-** ^The [xCreate] and [xConnect] methods of a
-** [virtual table module] call this interface
-** to declare the format (the names and datatypes of the columns) of
-** the virtual tables they implement.
-*/
-SQLITE_API int tdsqlite3_declare_vtab(tdsqlite3*, const char *zSQL);
-
-/*
-** CAPI3REF: Overload A Function For A Virtual Table
-** METHOD: tdsqlite3
-**
-** ^(Virtual tables can provide alternative implementations of functions
-** using the [xFindFunction] method of the [virtual table module].  
-** But global versions of those functions
-** must exist in order to be overloaded.)^
-**
-** ^(This API makes sure a global version of a function with a particular
-** name and number of parameters exists.  If no such function exists
-** before this API is called, a new function is created.)^  ^The implementation
-** of the new function always causes an exception to be thrown.  So
-** the new function is not good for anything by itself.  Its only
-** purpose is to be a placeholder function that can be overloaded
-** by a [virtual table].
-*/
-SQLITE_API int tdsqlite3_overload_function(tdsqlite3*, const char *zFuncName, int nArg);
-
-/*
-** The interface to the virtual-table mechanism defined above (back up
-** to a comment remarkably similar to this one) is currently considered
-** to be experimental.  The interface might change in incompatible ways.
-** If this is a problem for you, do not use the interface at this time.
-**
-** When the virtual-table mechanism stabilizes, we will declare the
-** interface fixed, support it indefinitely, and remove this comment.
-*/
-
-/*
-** CAPI3REF: A Handle To An Open BLOB
-** KEYWORDS: {BLOB handle} {BLOB handles}
-**
-** An instance of this object represents an open BLOB on which
-** [tdsqlite3_blob_open | incremental BLOB I/O] can be performed.
-** ^Objects of this type are created by [tdsqlite3_blob_open()]
-** and destroyed by [tdsqlite3_blob_close()].
-** ^The [tdsqlite3_blob_read()] and [tdsqlite3_blob_write()] interfaces
-** can be used to read or write small subsections of the BLOB.
-** ^The [tdsqlite3_blob_bytes()] interface returns the size of the BLOB in bytes.
-*/
-typedef struct tdsqlite3_blob tdsqlite3_blob;
-
-/*
-** CAPI3REF: Open A BLOB For Incremental I/O
-** METHOD: tdsqlite3
-** CONSTRUCTOR: tdsqlite3_blob
-**
-** ^(This interfaces opens a [BLOB handle | handle] to the BLOB located
-** in row iRow, column zColumn, table zTable in database zDb;
-** in other words, the same BLOB that would be selected by:
-**
-** <pre>
-**     SELECT zColumn FROM zDb.zTable WHERE [rowid] = iRow;
-** </pre>)^
-**
-** ^(Parameter zDb is not the filename that contains the database, but 
-** rather the symbolic name of the database. For attached databases, this is
-** the name that appears after the AS keyword in the [ATTACH] statement.
-** For the main database file, the database name is "main". For TEMP
-** tables, the database name is "temp".)^
-**
-** ^If the flags parameter is non-zero, then the BLOB is opened for read
-** and write access. ^If the flags parameter is zero, the BLOB is opened for
-** read-only access.
-**
-** ^(On success, [SQLITE_OK] is returned and the new [BLOB handle] is stored
-** in *ppBlob. Otherwise an [error code] is returned and, unless the error
-** code is SQLITE_MISUSE, *ppBlob is set to NULL.)^ ^This means that, provided
-** the API is not misused, it is always safe to call [tdsqlite3_blob_close()] 
-** on *ppBlob after this function it returns.
-**
-** This function fails with SQLITE_ERROR if any of the following are true:
-** <ul>
-**   <li> ^(Database zDb does not exist)^, 
-**   <li> ^(Table zTable does not exist within database zDb)^, 
-**   <li> ^(Table zTable is a WITHOUT ROWID table)^, 
-**   <li> ^(Column zColumn does not exist)^,
-**   <li> ^(Row iRow is not present in the table)^,
-**   <li> ^(The specified column of row iRow contains a value that is not
-**         a TEXT or BLOB value)^,
-**   <li> ^(Column zColumn is part of an index, PRIMARY KEY or UNIQUE 
-**         constraint and the blob is being opened for read/write access)^,
-**   <li> ^([foreign key constraints | Foreign key constraints] are enabled, 
-**         column zColumn is part of a [child key] definition and the blob is
-**         being opened for read/write access)^.
-** </ul>
-**
-** ^Unless it returns SQLITE_MISUSE, this function sets the 
-** [database connection] error code and message accessible via 
-** [tdsqlite3_errcode()] and [tdsqlite3_errmsg()] and related functions. 
-**
-** A BLOB referenced by tdsqlite3_blob_open() may be read using the
-** [tdsqlite3_blob_read()] interface and modified by using
-** [tdsqlite3_blob_write()].  The [BLOB handle] can be moved to a
-** different row of the same table using the [tdsqlite3_blob_reopen()]
-** interface.  However, the column, table, or database of a [BLOB handle]
-** cannot be changed after the [BLOB handle] is opened.
-**
-** ^(If the row that a BLOB handle points to is modified by an
-** [UPDATE], [DELETE], or by [ON CONFLICT] side-effects
-** then the BLOB handle is marked as "expired".
-** This is true if any column of the row is changed, even a column
-** other than the one the BLOB handle is open on.)^
-** ^Calls to [tdsqlite3_blob_read()] and [tdsqlite3_blob_write()] for
-** an expired BLOB handle fail with a return code of [SQLITE_ABORT].
-** ^(Changes written into a BLOB prior to the BLOB expiring are not
-** rolled back by the expiration of the BLOB.  Such changes will eventually
-** commit if the transaction continues to completion.)^
-**
-** ^Use the [tdsqlite3_blob_bytes()] interface to determine the size of
-** the opened blob.  ^The size of a blob may not be changed by this
-** interface.  Use the [UPDATE] SQL command to change the size of a
-** blob.
-**
-** ^The [tdsqlite3_bind_zeroblob()] and [tdsqlite3_result_zeroblob()] interfaces
-** and the built-in [zeroblob] SQL function may be used to create a 
-** zero-filled blob to read or write using the incremental-blob interface.
-**
-** To avoid a resource leak, every open [BLOB handle] should eventually
-** be released by a call to [tdsqlite3_blob_close()].
-**
-** See also: [tdsqlite3_blob_close()],
-** [tdsqlite3_blob_reopen()], [tdsqlite3_blob_read()],
-** [tdsqlite3_blob_bytes()], [tdsqlite3_blob_write()].
-*/
-SQLITE_API int tdsqlite3_blob_open(
-  tdsqlite3*,
-  const char *zDb,
-  const char *zTable,
-  const char *zColumn,
-  tdsqlite3_int64 iRow,
-  int flags,
-  tdsqlite3_blob **ppBlob
-);
-
-/*
-** CAPI3REF: Move a BLOB Handle to a New Row
-** METHOD: tdsqlite3_blob
-**
-** ^This function is used to move an existing [BLOB handle] so that it points
-** to a different row of the same database table. ^The new row is identified
-** by the rowid value passed as the second argument. Only the row can be
-** changed. ^The database, table and column on which the blob handle is open
-** remain the same. Moving an existing [BLOB handle] to a new row is
-** faster than closing the existing handle and opening a new one.
-**
-** ^(The new row must meet the same criteria as for [tdsqlite3_blob_open()] -
-** it must exist and there must be either a blob or text value stored in
-** the nominated column.)^ ^If the new row is not present in the table, or if
-** it does not contain a blob or text value, or if another error occurs, an
-** SQLite error code is returned and the blob handle is considered aborted.
-** ^All subsequent calls to [tdsqlite3_blob_read()], [tdsqlite3_blob_write()] or
-** [tdsqlite3_blob_reopen()] on an aborted blob handle immediately return
-** SQLITE_ABORT. ^Calling [tdsqlite3_blob_bytes()] on an aborted blob handle
-** always returns zero.
-**
-** ^This function sets the database handle error code and message.
-*/
-SQLITE_API int tdsqlite3_blob_reopen(tdsqlite3_blob *, tdsqlite3_int64);
-
-/*
-** CAPI3REF: Close A BLOB Handle
-** DESTRUCTOR: tdsqlite3_blob
-**
-** ^This function closes an open [BLOB handle]. ^(The BLOB handle is closed
-** unconditionally.  Even if this routine returns an error code, the 
-** handle is still closed.)^
-**
-** ^If the blob handle being closed was opened for read-write access, and if
-** the database is in auto-commit mode and there are no other open read-write
-** blob handles or active write statements, the current transaction is
-** committed. ^If an error occurs while committing the transaction, an error
-** code is returned and the transaction rolled back.
-**
-** Calling this function with an argument that is not a NULL pointer or an
-** open blob handle results in undefined behaviour. ^Calling this routine 
-** with a null pointer (such as would be returned by a failed call to 
-** [tdsqlite3_blob_open()]) is a harmless no-op. ^Otherwise, if this function
-** is passed a valid open blob handle, the values returned by the 
-** tdsqlite3_errcode() and tdsqlite3_errmsg() functions are set before returning.
-*/
-SQLITE_API int tdsqlite3_blob_close(tdsqlite3_blob *);
-
-/*
-** CAPI3REF: Return The Size Of An Open BLOB
-** METHOD: tdsqlite3_blob
-**
-** ^Returns the size in bytes of the BLOB accessible via the 
-** successfully opened [BLOB handle] in its only argument.  ^The
-** incremental blob I/O routines can only read or overwriting existing
-** blob content; they cannot change the size of a blob.
-**
-** This routine only works on a [BLOB handle] which has been created
-** by a prior successful call to [tdsqlite3_blob_open()] and which has not
-** been closed by [tdsqlite3_blob_close()].  Passing any other pointer in
-** to this routine results in undefined and probably undesirable behavior.
-*/
-SQLITE_API int tdsqlite3_blob_bytes(tdsqlite3_blob *);
-
-/*
-** CAPI3REF: Read Data From A BLOB Incrementally
-** METHOD: tdsqlite3_blob
-**
-** ^(This function is used to read data from an open [BLOB handle] into a
-** caller-supplied buffer. N bytes of data are copied into buffer Z
-** from the open BLOB, starting at offset iOffset.)^
-**
-** ^If offset iOffset is less than N bytes from the end of the BLOB,
-** [SQLITE_ERROR] is returned and no data is read.  ^If N or iOffset is
-** less than zero, [SQLITE_ERROR] is returned and no data is read.
-** ^The size of the blob (and hence the maximum value of N+iOffset)
-** can be determined using the [tdsqlite3_blob_bytes()] interface.
-**
-** ^An attempt to read from an expired [BLOB handle] fails with an
-** error code of [SQLITE_ABORT].
-**
-** ^(On success, tdsqlite3_blob_read() returns SQLITE_OK.
-** Otherwise, an [error code] or an [extended error code] is returned.)^
-**
-** This routine only works on a [BLOB handle] which has been created
-** by a prior successful call to [tdsqlite3_blob_open()] and which has not
-** been closed by [tdsqlite3_blob_close()].  Passing any other pointer in
-** to this routine results in undefined and probably undesirable behavior.
-**
-** See also: [tdsqlite3_blob_write()].
-*/
-SQLITE_API int tdsqlite3_blob_read(tdsqlite3_blob *, void *Z, int N, int iOffset);
-
-/*
-** CAPI3REF: Write Data Into A BLOB Incrementally
-** METHOD: tdsqlite3_blob
-**
-** ^(This function is used to write data into an open [BLOB handle] from a
-** caller-supplied buffer. N bytes of data are copied from the buffer Z
-** into the open BLOB, starting at offset iOffset.)^
-**
-** ^(On success, tdsqlite3_blob_write() returns SQLITE_OK.
-** Otherwise, an  [error code] or an [extended error code] is returned.)^
-** ^Unless SQLITE_MISUSE is returned, this function sets the 
-** [database connection] error code and message accessible via 
-** [tdsqlite3_errcode()] and [tdsqlite3_errmsg()] and related functions. 
-**
-** ^If the [BLOB handle] passed as the first argument was not opened for
-** writing (the flags parameter to [tdsqlite3_blob_open()] was zero),
-** this function returns [SQLITE_READONLY].
-**
-** This function may only modify the contents of the BLOB; it is
-** not possible to increase the size of a BLOB using this API.
-** ^If offset iOffset is less than N bytes from the end of the BLOB,
-** [SQLITE_ERROR] is returned and no data is written. The size of the 
-** BLOB (and hence the maximum value of N+iOffset) can be determined 
-** using the [tdsqlite3_blob_bytes()] interface. ^If N or iOffset are less 
-** than zero [SQLITE_ERROR] is returned and no data is written.
-**
-** ^An attempt to write to an expired [BLOB handle] fails with an
-** error code of [SQLITE_ABORT].  ^Writes to the BLOB that occurred
-** before the [BLOB handle] expired are not rolled back by the
-** expiration of the handle, though of course those changes might
-** have been overwritten by the statement that expired the BLOB handle
-** or by other independent statements.
-**
-** This routine only works on a [BLOB handle] which has been created
-** by a prior successful call to [tdsqlite3_blob_open()] and which has not
-** been closed by [tdsqlite3_blob_close()].  Passing any other pointer in
-** to this routine results in undefined and probably undesirable behavior.
-**
-** See also: [tdsqlite3_blob_read()].
-*/
-SQLITE_API int tdsqlite3_blob_write(tdsqlite3_blob *, const void *z, int n, int iOffset);
-
-/*
-** CAPI3REF: Virtual File System Objects
-**
-** A virtual filesystem (VFS) is an [tdsqlite3_vfs] object
-** that SQLite uses to interact
-** with the underlying operating system.  Most SQLite builds come with a
-** single default VFS that is appropriate for the host computer.
-** New VFSes can be registered and existing VFSes can be unregistered.
-** The following interfaces are provided.
-**
-** ^The tdsqlite3_vfs_find() interface returns a pointer to a VFS given its name.
-** ^Names are case sensitive.
-** ^Names are zero-terminated UTF-8 strings.
-** ^If there is no match, a NULL pointer is returned.
-** ^If zVfsName is NULL then the default VFS is returned.
-**
-** ^New VFSes are registered with tdsqlite3_vfs_register().
-** ^Each new VFS becomes the default VFS if the makeDflt flag is set.
-** ^The same VFS can be registered multiple times without injury.
-** ^To make an existing VFS into the default VFS, register it again
-** with the makeDflt flag set.  If two different VFSes with the
-** same name are registered, the behavior is undefined.  If a
-** VFS is registered with a name that is NULL or an empty string,
-** then the behavior is undefined.
-**
-** ^Unregister a VFS with the tdsqlite3_vfs_unregister() interface.
-** ^(If the default VFS is unregistered, another VFS is chosen as
-** the default.  The choice for the new VFS is arbitrary.)^
-*/
-SQLITE_API tdsqlite3_vfs *tdsqlite3_vfs_find(const char *zVfsName);
-SQLITE_API int tdsqlite3_vfs_register(tdsqlite3_vfs*, int makeDflt);
-SQLITE_API int tdsqlite3_vfs_unregister(tdsqlite3_vfs*);
-
-/*
-** CAPI3REF: Mutexes
-**
-** The SQLite core uses these routines for thread
-** synchronization. Though they are intended for internal
-** use by SQLite, code that links against SQLite is
-** permitted to use any of these routines.
-**
-** The SQLite source code contains multiple implementations
-** of these mutex routines.  An appropriate implementation
-** is selected automatically at compile-time.  The following
-** implementations are available in the SQLite core:
-**
-** <ul>
-** <li>   SQLITE_MUTEX_PTHREADS
-** <li>   SQLITE_MUTEX_W32
-** <li>   SQLITE_MUTEX_NOOP
-** </ul>
-**
-** The SQLITE_MUTEX_NOOP implementation is a set of routines
-** that does no real locking and is appropriate for use in
-** a single-threaded application.  The SQLITE_MUTEX_PTHREADS and
-** SQLITE_MUTEX_W32 implementations are appropriate for use on Unix
-** and Windows.
-**
-** If SQLite is compiled with the SQLITE_MUTEX_APPDEF preprocessor
-** macro defined (with "-DSQLITE_MUTEX_APPDEF=1"), then no mutex
-** implementation is included with the library. In this case the
-** application must supply a custom mutex implementation using the
-** [SQLITE_CONFIG_MUTEX] option of the tdsqlite3_config() function
-** before calling tdsqlite3_initialize() or any other public tdsqlite3_
-** function that calls tdsqlite3_initialize().
-**
-** ^The tdsqlite3_mutex_alloc() routine allocates a new
-** mutex and returns a pointer to it. ^The tdsqlite3_mutex_alloc()
-** routine returns NULL if it is unable to allocate the requested
-** mutex.  The argument to tdsqlite3_mutex_alloc() must one of these
-** integer constants:
-**
-** <ul>
-** <li>  SQLITE_MUTEX_FAST
-** <li>  SQLITE_MUTEX_RECURSIVE
-** <li>  SQLITE_MUTEX_STATIC_MASTER
-** <li>  SQLITE_MUTEX_STATIC_MEM
-** <li>  SQLITE_MUTEX_STATIC_OPEN
-** <li>  SQLITE_MUTEX_STATIC_PRNG
-** <li>  SQLITE_MUTEX_STATIC_LRU
-** <li>  SQLITE_MUTEX_STATIC_PMEM
-** <li>  SQLITE_MUTEX_STATIC_APP1
-** <li>  SQLITE_MUTEX_STATIC_APP2
-** <li>  SQLITE_MUTEX_STATIC_APP3
-** <li>  SQLITE_MUTEX_STATIC_VFS1
-** <li>  SQLITE_MUTEX_STATIC_VFS2
-** <li>  SQLITE_MUTEX_STATIC_VFS3
-** </ul>
-**
-** ^The first two constants (SQLITE_MUTEX_FAST and SQLITE_MUTEX_RECURSIVE)
-** cause tdsqlite3_mutex_alloc() to create
-** a new mutex.  ^The new mutex is recursive when SQLITE_MUTEX_RECURSIVE
-** is used but not necessarily so when SQLITE_MUTEX_FAST is used.
-** The mutex implementation does not need to make a distinction
-** between SQLITE_MUTEX_RECURSIVE and SQLITE_MUTEX_FAST if it does
-** not want to.  SQLite will only request a recursive mutex in
-** cases where it really needs one.  If a faster non-recursive mutex
-** implementation is available on the host platform, the mutex subsystem
-** might return such a mutex in response to SQLITE_MUTEX_FAST.
-**
-** ^The other allowed parameters to tdsqlite3_mutex_alloc() (anything other
-** than SQLITE_MUTEX_FAST and SQLITE_MUTEX_RECURSIVE) each return
-** a pointer to a static preexisting mutex.  ^Nine static mutexes are
-** used by the current version of SQLite.  Future versions of SQLite
-** may add additional static mutexes.  Static mutexes are for internal
-** use by SQLite only.  Applications that use SQLite mutexes should
-** use only the dynamic mutexes returned by SQLITE_MUTEX_FAST or
-** SQLITE_MUTEX_RECURSIVE.
-**
-** ^Note that if one of the dynamic mutex parameters (SQLITE_MUTEX_FAST
-** or SQLITE_MUTEX_RECURSIVE) is used then tdsqlite3_mutex_alloc()
-** returns a different mutex on every call.  ^For the static
-** mutex types, the same mutex is returned on every call that has
-** the same type number.
-**
-** ^The tdsqlite3_mutex_free() routine deallocates a previously
-** allocated dynamic mutex.  Attempting to deallocate a static
-** mutex results in undefined behavior.
-**
-** ^The tdsqlite3_mutex_enter() and tdsqlite3_mutex_try() routines attempt
-** to enter a mutex.  ^If another thread is already within the mutex,
-** tdsqlite3_mutex_enter() will block and tdsqlite3_mutex_try() will return
-** SQLITE_BUSY.  ^The tdsqlite3_mutex_try() interface returns [SQLITE_OK]
-** upon successful entry.  ^(Mutexes created using
-** SQLITE_MUTEX_RECURSIVE can be entered multiple times by the same thread.
-** In such cases, the
-** mutex must be exited an equal number of times before another thread
-** can enter.)^  If the same thread tries to enter any mutex other
-** than an SQLITE_MUTEX_RECURSIVE more than once, the behavior is undefined.
-**
-** ^(Some systems (for example, Windows 95) do not support the operation
-** implemented by tdsqlite3_mutex_try().  On those systems, tdsqlite3_mutex_try()
-** will always return SQLITE_BUSY. The SQLite core only ever uses
-** tdsqlite3_mutex_try() as an optimization so this is acceptable 
-** behavior.)^
-**
-** ^The tdsqlite3_mutex_leave() routine exits a mutex that was
-** previously entered by the same thread.   The behavior
-** is undefined if the mutex is not currently entered by the
-** calling thread or is not currently allocated.
-**
-** ^If the argument to tdsqlite3_mutex_enter(), tdsqlite3_mutex_try(), or
-** tdsqlite3_mutex_leave() is a NULL pointer, then all three routines
-** behave as no-ops.
-**
-** See also: [tdsqlite3_mutex_held()] and [tdsqlite3_mutex_notheld()].
-*/
-SQLITE_API tdsqlite3_mutex *tdsqlite3_mutex_alloc(int);
-SQLITE_API void tdsqlite3_mutex_free(tdsqlite3_mutex*);
-SQLITE_API void tdsqlite3_mutex_enter(tdsqlite3_mutex*);
-SQLITE_API int tdsqlite3_mutex_try(tdsqlite3_mutex*);
-SQLITE_API void tdsqlite3_mutex_leave(tdsqlite3_mutex*);
-
-/*
-** CAPI3REF: Mutex Methods Object
-**
-** An instance of this structure defines the low-level routines
-** used to allocate and use mutexes.
-**
-** Usually, the default mutex implementations provided by SQLite are
-** sufficient, however the application has the option of substituting a custom
-** implementation for specialized deployments or systems for which SQLite
-** does not provide a suitable implementation. In this case, the application
-** creates and populates an instance of this structure to pass
-** to tdsqlite3_config() along with the [SQLITE_CONFIG_MUTEX] option.
-** Additionally, an instance of this structure can be used as an
-** output variable when querying the system for the current mutex
-** implementation, using the [SQLITE_CONFIG_GETMUTEX] option.
-**
-** ^The xMutexInit method defined by this structure is invoked as
-** part of system initialization by the tdsqlite3_initialize() function.
-** ^The xMutexInit routine is called by SQLite exactly once for each
-** effective call to [tdsqlite3_initialize()].
-**
-** ^The xMutexEnd method defined by this structure is invoked as
-** part of system shutdown by the tdsqlite3_shutdown() function. The
-** implementation of this method is expected to release all outstanding
-** resources obtained by the mutex methods implementation, especially
-** those obtained by the xMutexInit method.  ^The xMutexEnd()
-** interface is invoked exactly once for each call to [tdsqlite3_shutdown()].
-**
-** ^(The remaining seven methods defined by this structure (xMutexAlloc,
-** xMutexFree, xMutexEnter, xMutexTry, xMutexLeave, xMutexHeld and
-** xMutexNotheld) implement the following interfaces (respectively):
-**
-** <ul>
-**   <li>  [tdsqlite3_mutex_alloc()] </li>
-**   <li>  [tdsqlite3_mutex_free()] </li>
-**   <li>  [tdsqlite3_mutex_enter()] </li>
-**   <li>  [tdsqlite3_mutex_try()] </li>
-**   <li>  [tdsqlite3_mutex_leave()] </li>
-**   <li>  [tdsqlite3_mutex_held()] </li>
-**   <li>  [tdsqlite3_mutex_notheld()] </li>
-** </ul>)^
-**
-** The only difference is that the public tdsqlite3_XXX functions enumerated
-** above silently ignore any invocations that pass a NULL pointer instead
-** of a valid mutex handle. The implementations of the methods defined
-** by this structure are not required to handle this case. The results
-** of passing a NULL pointer instead of a valid mutex handle are undefined
-** (i.e. it is acceptable to provide an implementation that segfaults if
-** it is passed a NULL pointer).
-**
-** The xMutexInit() method must be threadsafe.  It must be harmless to
-** invoke xMutexInit() multiple times within the same process and without
-** intervening calls to xMutexEnd().  Second and subsequent calls to
-** xMutexInit() must be no-ops.
-**
-** xMutexInit() must not use SQLite memory allocation ([tdsqlite3_malloc()]
-** and its associates).  Similarly, xMutexAlloc() must not use SQLite memory
-** allocation for a static mutex.  ^However xMutexAlloc() may use SQLite
-** memory allocation for a fast or recursive mutex.
-**
-** ^SQLite will invoke the xMutexEnd() method when [tdsqlite3_shutdown()] is
-** called, but only if the prior call to xMutexInit returned SQLITE_OK.
-** If xMutexInit fails in any way, it is expected to clean up after itself
-** prior to returning.
-*/
-typedef struct tdsqlite3_mutex_methods tdsqlite3_mutex_methods;
-struct tdsqlite3_mutex_methods {
-  int (*xMutexInit)(void);
-  int (*xMutexEnd)(void);
-  tdsqlite3_mutex *(*xMutexAlloc)(int);
-  void (*xMutexFree)(tdsqlite3_mutex *);
-  void (*xMutexEnter)(tdsqlite3_mutex *);
-  int (*xMutexTry)(tdsqlite3_mutex *);
-  void (*xMutexLeave)(tdsqlite3_mutex *);
-  int (*xMutexHeld)(tdsqlite3_mutex *);
-  int (*xMutexNotheld)(tdsqlite3_mutex *);
-};
-
-/*
-** CAPI3REF: Mutex Verification Routines
-**
-** The tdsqlite3_mutex_held() and tdsqlite3_mutex_notheld() routines
-** are intended for use inside assert() statements.  The SQLite core
-** never uses these routines except inside an assert() and applications
-** are advised to follow the lead of the core.  The SQLite core only
-** provides implementations for these routines when it is compiled
-** with the SQLITE_DEBUG flag.  External mutex implementations
-** are only required to provide these routines if SQLITE_DEBUG is
-** defined and if NDEBUG is not defined.
-**
-** These routines should return true if the mutex in their argument
-** is held or not held, respectively, by the calling thread.
-**
-** The implementation is not required to provide versions of these
-** routines that actually work. If the implementation does not provide working
-** versions of these routines, it should at least provide stubs that always
-** return true so that one does not get spurious assertion failures.
-**
-** If the argument to tdsqlite3_mutex_held() is a NULL pointer then
-** the routine should return 1.   This seems counter-intuitive since
-** clearly the mutex cannot be held if it does not exist.  But
-** the reason the mutex does not exist is because the build is not
-** using mutexes.  And we do not want the assert() containing the
-** call to tdsqlite3_mutex_held() to fail, so a non-zero return is
-** the appropriate thing to do.  The tdsqlite3_mutex_notheld()
-** interface should also return 1 when given a NULL pointer.
-*/
-#ifndef NDEBUG
-SQLITE_API int tdsqlite3_mutex_held(tdsqlite3_mutex*);
-SQLITE_API int tdsqlite3_mutex_notheld(tdsqlite3_mutex*);
-#endif
-
-/*
-** CAPI3REF: Mutex Types
-**
-** The [tdsqlite3_mutex_alloc()] interface takes a single argument
-** which is one of these integer constants.
-**
-** The set of static mutexes may change from one SQLite release to the
-** next.  Applications that override the built-in mutex logic must be
-** prepared to accommodate additional static mutexes.
-*/
-#define SQLITE_MUTEX_FAST             0
-#define SQLITE_MUTEX_RECURSIVE        1
-#define SQLITE_MUTEX_STATIC_MASTER    2
-#define SQLITE_MUTEX_STATIC_MEM       3  /* tdsqlite3_malloc() */
-#define SQLITE_MUTEX_STATIC_MEM2      4  /* NOT USED */
-#define SQLITE_MUTEX_STATIC_OPEN      4  /* tdsqlite3BtreeOpen() */
-#define SQLITE_MUTEX_STATIC_PRNG      5  /* tdsqlite3_randomness() */
-#define SQLITE_MUTEX_STATIC_LRU       6  /* lru page list */
-#define SQLITE_MUTEX_STATIC_LRU2      7  /* NOT USED */
-#define SQLITE_MUTEX_STATIC_PMEM      7  /* tdsqlite3PageMalloc() */
-#define SQLITE_MUTEX_STATIC_APP1      8  /* For use by application */
-#define SQLITE_MUTEX_STATIC_APP2      9  /* For use by application */
-#define SQLITE_MUTEX_STATIC_APP3     10  /* For use by application */
-#define SQLITE_MUTEX_STATIC_VFS1     11  /* For use by built-in VFS */
-#define SQLITE_MUTEX_STATIC_VFS2     12  /* For use by extension VFS */
-#define SQLITE_MUTEX_STATIC_VFS3     13  /* For use by application VFS */
-
-/*
-** CAPI3REF: Retrieve the mutex for a database connection
-** METHOD: tdsqlite3
-**
-** ^This interface returns a pointer the [tdsqlite3_mutex] object that 
-** serializes access to the [database connection] given in the argument
-** when the [threading mode] is Serialized.
-** ^If the [threading mode] is Single-thread or Multi-thread then this
-** routine returns a NULL pointer.
-*/
-SQLITE_API tdsqlite3_mutex *tdsqlite3_db_mutex(tdsqlite3*);
-
-/*
-** CAPI3REF: Low-Level Control Of Database Files
-** METHOD: tdsqlite3
-** KEYWORDS: {file control}
-**
-** ^The [tdsqlite3_file_control()] interface makes a direct call to the
-** xFileControl method for the [tdsqlite3_io_methods] object associated
-** with a particular database identified by the second argument. ^The
-** name of the database is "main" for the main database or "temp" for the
-** TEMP database, or the name that appears after the AS keyword for
-** databases that are added using the [ATTACH] SQL command.
-** ^A NULL pointer can be used in place of "main" to refer to the
-** main database file.
-** ^The third and fourth parameters to this routine
-** are passed directly through to the second and third parameters of
-** the xFileControl method.  ^The return value of the xFileControl
-** method becomes the return value of this routine.
-**
-** A few opcodes for [tdsqlite3_file_control()] are handled directly
-** by the SQLite core and never invoke the 
-** tdsqlite3_io_methods.xFileControl method.
-** ^The [SQLITE_FCNTL_FILE_POINTER] value for the op parameter causes
-** a pointer to the underlying [tdsqlite3_file] object to be written into
-** the space pointed to by the 4th parameter.  The
-** [SQLITE_FCNTL_JOURNAL_POINTER] works similarly except that it returns
-** the [tdsqlite3_file] object associated with the journal file instead of
-** the main database.  The [SQLITE_FCNTL_VFS_POINTER] opcode returns
-** a pointer to the underlying [tdsqlite3_vfs] object for the file.
-** The [SQLITE_FCNTL_DATA_VERSION] returns the data version counter
-** from the pager.
-**
-** ^If the second parameter (zDbName) does not match the name of any
-** open database file, then SQLITE_ERROR is returned.  ^This error
-** code is not remembered and will not be recalled by [tdsqlite3_errcode()]
-** or [tdsqlite3_errmsg()].  The underlying xFileControl method might
-** also return SQLITE_ERROR.  There is no way to distinguish between
-** an incorrect zDbName and an SQLITE_ERROR return from the underlying
-** xFileControl method.
-**
-** See also: [file control opcodes]
-*/
-SQLITE_API int tdsqlite3_file_control(tdsqlite3*, const char *zDbName, int op, void*);
-
-/*
-** CAPI3REF: Testing Interface
-**
-** ^The tdsqlite3_test_control() interface is used to read out internal
-** state of SQLite and to inject faults into SQLite for testing
-** purposes.  ^The first parameter is an operation code that determines
-** the number, meaning, and operation of all subsequent parameters.
-**
-** This interface is not for use by applications.  It exists solely
-** for verifying the correct operation of the SQLite library.  Depending
-** on how the SQLite library is compiled, this interface might not exist.
-**
-** The details of the operation codes, their meanings, the parameters
-** they take, and what they do are all subject to change without notice.
-** Unlike most of the SQLite API, this function is not guaranteed to
-** operate consistently from one release to the next.
-*/
-SQLITE_API int tdsqlite3_test_control(int op, ...);
-
-/*
-** CAPI3REF: Testing Interface Operation Codes
-**
-** These constants are the valid operation code parameters used
-** as the first argument to [tdsqlite3_test_control()].
-**
-** These parameters and their meanings are subject to change
-** without notice.  These values are for testing purposes only.
-** Applications should not use any of these parameters or the
-** [tdsqlite3_test_control()] interface.
-*/
-#define SQLITE_TESTCTRL_FIRST                    5
-#define SQLITE_TESTCTRL_PRNG_SAVE                5
-#define SQLITE_TESTCTRL_PRNG_RESTORE             6
-#define SQLITE_TESTCTRL_PRNG_RESET               7  /* NOT USED */
-#define SQLITE_TESTCTRL_BITVEC_TEST              8
-#define SQLITE_TESTCTRL_FAULT_INSTALL            9
-#define SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS     10
-#define SQLITE_TESTCTRL_PENDING_BYTE            11
-#define SQLITE_TESTCTRL_ASSERT                  12
-#define SQLITE_TESTCTRL_ALWAYS                  13
-#define SQLITE_TESTCTRL_RESERVE                 14
-#define SQLITE_TESTCTRL_OPTIMIZATIONS           15
-#define SQLITE_TESTCTRL_ISKEYWORD               16  /* NOT USED */
-#define SQLITE_TESTCTRL_SCRATCHMALLOC           17  /* NOT USED */
-#define SQLITE_TESTCTRL_INTERNAL_FUNCTIONS      17
-#define SQLITE_TESTCTRL_LOCALTIME_FAULT         18
-#define SQLITE_TESTCTRL_EXPLAIN_STMT            19  /* NOT USED */
-#define SQLITE_TESTCTRL_ONCE_RESET_THRESHOLD    19
-#define SQLITE_TESTCTRL_NEVER_CORRUPT           20
-#define SQLITE_TESTCTRL_VDBE_COVERAGE           21
-#define SQLITE_TESTCTRL_BYTEORDER               22
-#define SQLITE_TESTCTRL_ISINIT                  23
-#define SQLITE_TESTCTRL_SORTER_MMAP             24
-#define SQLITE_TESTCTRL_IMPOSTER                25
-#define SQLITE_TESTCTRL_PARSER_COVERAGE         26
-#define SQLITE_TESTCTRL_RESULT_INTREAL          27
-#define SQLITE_TESTCTRL_PRNG_SEED               28
-#define SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS     29
-#define SQLITE_TESTCTRL_LAST                    29  /* Largest TESTCTRL */
-
-/*
-** CAPI3REF: SQL Keyword Checking
-**
-** These routines provide access to the set of SQL language keywords 
-** recognized by SQLite.  Applications can uses these routines to determine
-** whether or not a specific identifier needs to be escaped (for example,
-** by enclosing in double-quotes) so as not to confuse the parser.
-**
-** The tdsqlite3_keyword_count() interface returns the number of distinct
-** keywords understood by SQLite.
-**
-** The tdsqlite3_keyword_name(N,Z,L) interface finds the N-th keyword and
-** makes *Z point to that keyword expressed as UTF8 and writes the number
-** of bytes in the keyword into *L.  The string that *Z points to is not
-** zero-terminated.  The tdsqlite3_keyword_name(N,Z,L) routine returns
-** SQLITE_OK if N is within bounds and SQLITE_ERROR if not. If either Z
-** or L are NULL or invalid pointers then calls to
-** tdsqlite3_keyword_name(N,Z,L) result in undefined behavior.
-**
-** The tdsqlite3_keyword_check(Z,L) interface checks to see whether or not
-** the L-byte UTF8 identifier that Z points to is a keyword, returning non-zero
-** if it is and zero if not.
-**
-** The parser used by SQLite is forgiving.  It is often possible to use
-** a keyword as an identifier as long as such use does not result in a
-** parsing ambiguity.  For example, the statement
-** "CREATE TABLE BEGIN(REPLACE,PRAGMA,END);" is accepted by SQLite, and
-** creates a new table named "BEGIN" with three columns named
-** "REPLACE", "PRAGMA", and "END".  Nevertheless, best practice is to avoid
-** using keywords as identifiers.  Common techniques used to avoid keyword
-** name collisions include:
-** <ul>
-** <li> Put all identifier names inside double-quotes.  This is the official
-**      SQL way to escape identifier names.
-** <li> Put identifier names inside &#91;...&#93;.  This is not standard SQL,
-**      but it is what SQL Server does and so lots of programmers use this
-**      technique.
-** <li> Begin every identifier with the letter "Z" as no SQL keywords start
-**      with "Z".
-** <li> Include a digit somewhere in every identifier name.
-** </ul>
-**
-** Note that the number of keywords understood by SQLite can depend on
-** compile-time options.  For example, "VACUUM" is not a keyword if
-** SQLite is compiled with the [-DSQLITE_OMIT_VACUUM] option.  Also,
-** new keywords may be added to future releases of SQLite.
-*/
-SQLITE_API int tdsqlite3_keyword_count(void);
-SQLITE_API int tdsqlite3_keyword_name(int,const char**,int*);
-SQLITE_API int tdsqlite3_keyword_check(const char*,int);
-
-/*
-** CAPI3REF: Dynamic String Object
-** KEYWORDS: {dynamic string}
-**
-** An instance of the tdsqlite3_str object contains a dynamically-sized
-** string under construction.
-**
-** The lifecycle of an tdsqlite3_str object is as follows:
-** <ol>
-** <li> ^The tdsqlite3_str object is created using [tdsqlite3_str_new()].
-** <li> ^Text is appended to the tdsqlite3_str object using various
-** methods, such as [tdsqlite3_str_appendf()].
-** <li> ^The tdsqlite3_str object is destroyed and the string it created
-** is returned using the [tdsqlite3_str_finish()] interface.
-** </ol>
-*/
-typedef struct tdsqlite3_str tdsqlite3_str;
-
-/*
-** CAPI3REF: Create A New Dynamic String Object
-** CONSTRUCTOR: tdsqlite3_str
-**
-** ^The [tdsqlite3_str_new(D)] interface allocates and initializes
-** a new [tdsqlite3_str] object.  To avoid memory leaks, the object returned by
-** [tdsqlite3_str_new()] must be freed by a subsequent call to 
-** [tdsqlite3_str_finish(X)].
-**
-** ^The [tdsqlite3_str_new(D)] interface always returns a pointer to a
-** valid [tdsqlite3_str] object, though in the event of an out-of-memory
-** error the returned object might be a special singleton that will
-** silently reject new text, always return SQLITE_NOMEM from 
-** [tdsqlite3_str_errcode()], always return 0 for 
-** [tdsqlite3_str_length()], and always return NULL from
-** [tdsqlite3_str_finish(X)].  It is always safe to use the value
-** returned by [tdsqlite3_str_new(D)] as the tdsqlite3_str parameter
-** to any of the other [tdsqlite3_str] methods.
-**
-** The D parameter to [tdsqlite3_str_new(D)] may be NULL.  If the
-** D parameter in [tdsqlite3_str_new(D)] is not NULL, then the maximum
-** length of the string contained in the [tdsqlite3_str] object will be
-** the value set for [tdsqlite3_limit](D,[SQLITE_LIMIT_LENGTH]) instead
-** of [SQLITE_MAX_LENGTH].
-*/
-SQLITE_API tdsqlite3_str *tdsqlite3_str_new(tdsqlite3*);
-
-/*
-** CAPI3REF: Finalize A Dynamic String
-** DESTRUCTOR: tdsqlite3_str
-**
-** ^The [tdsqlite3_str_finish(X)] interface destroys the tdsqlite3_str object X
-** and returns a pointer to a memory buffer obtained from [tdsqlite3_malloc64()]
-** that contains the constructed string.  The calling application should
-** pass the returned value to [tdsqlite3_free()] to avoid a memory leak.
-** ^The [tdsqlite3_str_finish(X)] interface may return a NULL pointer if any
-** errors were encountered during construction of the string.  ^The
-** [tdsqlite3_str_finish(X)] interface will also return a NULL pointer if the
-** string in [tdsqlite3_str] object X is zero bytes long.
-*/
-SQLITE_API char *tdsqlite3_str_finish(tdsqlite3_str*);
-
-/*
-** CAPI3REF: Add Content To A Dynamic String
-** METHOD: tdsqlite3_str
-**
-** These interfaces add content to an tdsqlite3_str object previously obtained
-** from [tdsqlite3_str_new()].
-**
-** ^The [tdsqlite3_str_appendf(X,F,...)] and 
-** [tdsqlite3_str_vappendf(X,F,V)] interfaces uses the [built-in printf]
-** functionality of SQLite to append formatted text onto the end of 
-** [tdsqlite3_str] object X.
-**
-** ^The [tdsqlite3_str_append(X,S,N)] method appends exactly N bytes from string S
-** onto the end of the [tdsqlite3_str] object X.  N must be non-negative.
-** S must contain at least N non-zero bytes of content.  To append a
-** zero-terminated string in its entirety, use the [tdsqlite3_str_appendall()]
-** method instead.
-**
-** ^The [tdsqlite3_str_appendall(X,S)] method appends the complete content of
-** zero-terminated string S onto the end of [tdsqlite3_str] object X.
-**
-** ^The [tdsqlite3_str_appendchar(X,N,C)] method appends N copies of the
-** single-byte character C onto the end of [tdsqlite3_str] object X.
-** ^This method can be used, for example, to add whitespace indentation.
-**
-** ^The [tdsqlite3_str_reset(X)] method resets the string under construction
-** inside [tdsqlite3_str] object X back to zero bytes in length.  
-**
-** These methods do not return a result code.  ^If an error occurs, that fact
-** is recorded in the [tdsqlite3_str] object and can be recovered by a
-** subsequent call to [tdsqlite3_str_errcode(X)].
-*/
-SQLITE_API void tdsqlite3_str_appendf(tdsqlite3_str*, const char *zFormat, ...);
-SQLITE_API void tdsqlite3_str_vappendf(tdsqlite3_str*, const char *zFormat, va_list);
-SQLITE_API void tdsqlite3_str_append(tdsqlite3_str*, const char *zIn, int N);
-SQLITE_API void tdsqlite3_str_appendall(tdsqlite3_str*, const char *zIn);
-SQLITE_API void tdsqlite3_str_appendchar(tdsqlite3_str*, int N, char C);
-SQLITE_API void tdsqlite3_str_reset(tdsqlite3_str*);
-
-/*
-** CAPI3REF: Status Of A Dynamic String
-** METHOD: tdsqlite3_str
-**
-** These interfaces return the current status of an [tdsqlite3_str] object.
-**
-** ^If any prior errors have occurred while constructing the dynamic string
-** in tdsqlite3_str X, then the [tdsqlite3_str_errcode(X)] method will return
-** an appropriate error code.  ^The [tdsqlite3_str_errcode(X)] method returns
-** [SQLITE_NOMEM] following any out-of-memory error, or
-** [SQLITE_TOOBIG] if the size of the dynamic string exceeds
-** [SQLITE_MAX_LENGTH], or [SQLITE_OK] if there have been no errors.
-**
-** ^The [tdsqlite3_str_length(X)] method returns the current length, in bytes,
-** of the dynamic string under construction in [tdsqlite3_str] object X.
-** ^The length returned by [tdsqlite3_str_length(X)] does not include the
-** zero-termination byte.
-**
-** ^The [tdsqlite3_str_value(X)] method returns a pointer to the current
-** content of the dynamic string under construction in X.  The value
-** returned by [tdsqlite3_str_value(X)] is managed by the tdsqlite3_str object X
-** and might be freed or altered by any subsequent method on the same
-** [tdsqlite3_str] object.  Applications must not used the pointer returned
-** [tdsqlite3_str_value(X)] after any subsequent method call on the same
-** object.  ^Applications may change the content of the string returned
-** by [tdsqlite3_str_value(X)] as long as they do not write into any bytes
-** outside the range of 0 to [tdsqlite3_str_length(X)] and do not read or
-** write any byte after any subsequent tdsqlite3_str method call.
-*/
-SQLITE_API int tdsqlite3_str_errcode(tdsqlite3_str*);
-SQLITE_API int tdsqlite3_str_length(tdsqlite3_str*);
-SQLITE_API char *tdsqlite3_str_value(tdsqlite3_str*);
-
-/*
-** CAPI3REF: SQLite Runtime Status
-**
-** ^These interfaces are used to retrieve runtime status information
-** about the performance of SQLite, and optionally to reset various
-** highwater marks.  ^The first argument is an integer code for
-** the specific parameter to measure.  ^(Recognized integer codes
-** are of the form [status parameters | SQLITE_STATUS_...].)^
-** ^The current value of the parameter is returned into *pCurrent.
-** ^The highest recorded value is returned in *pHighwater.  ^If the
-** resetFlag is true, then the highest record value is reset after
-** *pHighwater is written.  ^(Some parameters do not record the highest
-** value.  For those parameters
-** nothing is written into *pHighwater and the resetFlag is ignored.)^
-** ^(Other parameters record only the highwater mark and not the current
-** value.  For these latter parameters nothing is written into *pCurrent.)^
-**
-** ^The tdsqlite3_status() and tdsqlite3_status64() routines return
-** SQLITE_OK on success and a non-zero [error code] on failure.
-**
-** If either the current value or the highwater mark is too large to
-** be represented by a 32-bit integer, then the values returned by
-** tdsqlite3_status() are undefined.
-**
-** See also: [tdsqlite3_db_status()]
-*/
-SQLITE_API int tdsqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag);
-SQLITE_API int tdsqlite3_status64(
-  int op,
-  tdsqlite3_int64 *pCurrent,
-  tdsqlite3_int64 *pHighwater,
-  int resetFlag
-);
-
-
-/*
-** CAPI3REF: Status Parameters
-** KEYWORDS: {status parameters}
-**
-** These integer constants designate various run-time status parameters
-** that can be returned by [tdsqlite3_status()].
-**
-** <dl>
-** [[SQLITE_STATUS_MEMORY_USED]] ^(<dt>SQLITE_STATUS_MEMORY_USED</dt>
-** <dd>This parameter is the current amount of memory checked out
-** using [tdsqlite3_malloc()], either directly or indirectly.  The
-** figure includes calls made to [tdsqlite3_malloc()] by the application
-** and internal memory usage by the SQLite library.  Auxiliary page-cache
-** memory controlled by [SQLITE_CONFIG_PAGECACHE] is not included in
-** this parameter.  The amount returned is the sum of the allocation
-** sizes as reported by the xSize method in [tdsqlite3_mem_methods].</dd>)^
-**
-** [[SQLITE_STATUS_MALLOC_SIZE]] ^(<dt>SQLITE_STATUS_MALLOC_SIZE</dt>
-** <dd>This parameter records the largest memory allocation request
-** handed to [tdsqlite3_malloc()] or [tdsqlite3_realloc()] (or their
-** internal equivalents).  Only the value returned in the
-** *pHighwater parameter to [tdsqlite3_status()] is of interest.  
-** The value written into the *pCurrent parameter is undefined.</dd>)^
-**
-** [[SQLITE_STATUS_MALLOC_COUNT]] ^(<dt>SQLITE_STATUS_MALLOC_COUNT</dt>
-** <dd>This parameter records the number of separate memory allocations
-** currently checked out.</dd>)^
-**
-** [[SQLITE_STATUS_PAGECACHE_USED]] ^(<dt>SQLITE_STATUS_PAGECACHE_USED</dt>
-** <dd>This parameter returns the number of pages used out of the
-** [pagecache memory allocator] that was configured using 
-** [SQLITE_CONFIG_PAGECACHE].  The
-** value returned is in pages, not in bytes.</dd>)^
-**
-** [[SQLITE_STATUS_PAGECACHE_OVERFLOW]] 
-** ^(<dt>SQLITE_STATUS_PAGECACHE_OVERFLOW</dt>
-** <dd>This parameter returns the number of bytes of page cache
-** allocation which could not be satisfied by the [SQLITE_CONFIG_PAGECACHE]
-** buffer and where forced to overflow to [tdsqlite3_malloc()].  The
-** returned value includes allocations that overflowed because they
-** where too large (they were larger than the "sz" parameter to
-** [SQLITE_CONFIG_PAGECACHE]) and allocations that overflowed because
-** no space was left in the page cache.</dd>)^
-**
-** [[SQLITE_STATUS_PAGECACHE_SIZE]] ^(<dt>SQLITE_STATUS_PAGECACHE_SIZE</dt>
-** <dd>This parameter records the largest memory allocation request
-** handed to the [pagecache memory allocator].  Only the value returned in the
-** *pHighwater parameter to [tdsqlite3_status()] is of interest.  
-** The value written into the *pCurrent parameter is undefined.</dd>)^
-**
-** [[SQLITE_STATUS_SCRATCH_USED]] <dt>SQLITE_STATUS_SCRATCH_USED</dt>
-** <dd>No longer used.</dd>
-**
-** [[SQLITE_STATUS_SCRATCH_OVERFLOW]] ^(<dt>SQLITE_STATUS_SCRATCH_OVERFLOW</dt>
-** <dd>No longer used.</dd>
-**
-** [[SQLITE_STATUS_SCRATCH_SIZE]] <dt>SQLITE_STATUS_SCRATCH_SIZE</dt>
-** <dd>No longer used.</dd>
-**
-** [[SQLITE_STATUS_PARSER_STACK]] ^(<dt>SQLITE_STATUS_PARSER_STACK</dt>
-** <dd>The *pHighwater parameter records the deepest parser stack. 
-** The *pCurrent value is undefined.  The *pHighwater value is only
-** meaningful if SQLite is compiled with [YYTRACKMAXSTACKDEPTH].</dd>)^
-** </dl>
-**
-** New status parameters may be added from time to time.
-*/
-#define SQLITE_STATUS_MEMORY_USED          0
-#define SQLITE_STATUS_PAGECACHE_USED       1
-#define SQLITE_STATUS_PAGECACHE_OVERFLOW   2
-#define SQLITE_STATUS_SCRATCH_USED         3  /* NOT USED */
-#define SQLITE_STATUS_SCRATCH_OVERFLOW     4  /* NOT USED */
-#define SQLITE_STATUS_MALLOC_SIZE          5
-#define SQLITE_STATUS_PARSER_STACK         6
-#define SQLITE_STATUS_PAGECACHE_SIZE       7
-#define SQLITE_STATUS_SCRATCH_SIZE         8  /* NOT USED */
-#define SQLITE_STATUS_MALLOC_COUNT         9
-
-/*
-** CAPI3REF: Database Connection Status
-** METHOD: tdsqlite3
-**
-** ^This interface is used to retrieve runtime status information 
-** about a single [database connection].  ^The first argument is the
-** database connection object to be interrogated.  ^The second argument
-** is an integer constant, taken from the set of
-** [SQLITE_DBSTATUS options], that
-** determines the parameter to interrogate.  The set of 
-** [SQLITE_DBSTATUS options] is likely
-** to grow in future releases of SQLite.
-**
-** ^The current value of the requested parameter is written into *pCur
-** and the highest instantaneous value is written into *pHiwtr.  ^If
-** the resetFlg is true, then the highest instantaneous value is
-** reset back down to the current value.
-**
-** ^The tdsqlite3_db_status() routine returns SQLITE_OK on success and a
-** non-zero [error code] on failure.
-**
-** See also: [tdsqlite3_status()] and [tdsqlite3_stmt_status()].
-*/
-SQLITE_API int tdsqlite3_db_status(tdsqlite3*, int op, int *pCur, int *pHiwtr, int resetFlg);
-
-/*
-** CAPI3REF: Status Parameters for database connections
-** KEYWORDS: {SQLITE_DBSTATUS options}
-**
-** These constants are the available integer "verbs" that can be passed as
-** the second argument to the [tdsqlite3_db_status()] interface.
-**
-** New verbs may be added in future releases of SQLite. Existing verbs
-** might be discontinued. Applications should check the return code from
-** [tdsqlite3_db_status()] to make sure that the call worked.
-** The [tdsqlite3_db_status()] interface will return a non-zero error code
-** if a discontinued or unsupported verb is invoked.
-**
-** <dl>
-** [[SQLITE_DBSTATUS_LOOKASIDE_USED]] ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_USED</dt>
-** <dd>This parameter returns the number of lookaside memory slots currently
-** checked out.</dd>)^
-**
-** [[SQLITE_DBSTATUS_LOOKASIDE_HIT]] ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_HIT</dt>
-** <dd>This parameter returns the number of malloc attempts that were 
-** satisfied using lookaside memory. Only the high-water value is meaningful;
-** the current value is always zero.)^
-**
-** [[SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE]]
-** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE</dt>
-** <dd>This parameter returns the number malloc attempts that might have
-** been satisfied using lookaside memory but failed due to the amount of
-** memory requested being larger than the lookaside slot size.
-** Only the high-water value is meaningful;
-** the current value is always zero.)^
-**
-** [[SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL]]
-** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL</dt>
-** <dd>This parameter returns the number malloc attempts that might have
-** been satisfied using lookaside memory but failed due to all lookaside
-** memory already being in use.
-** Only the high-water value is meaningful;
-** the current value is always zero.)^
-**
-** [[SQLITE_DBSTATUS_CACHE_USED]] ^(<dt>SQLITE_DBSTATUS_CACHE_USED</dt>
-** <dd>This parameter returns the approximate number of bytes of heap
-** memory used by all pager caches associated with the database connection.)^
-** ^The highwater mark associated with SQLITE_DBSTATUS_CACHE_USED is always 0.
-**
-** [[SQLITE_DBSTATUS_CACHE_USED_SHARED]] 
-** ^(<dt>SQLITE_DBSTATUS_CACHE_USED_SHARED</dt>
-** <dd>This parameter is similar to DBSTATUS_CACHE_USED, except that if a
-** pager cache is shared between two or more connections the bytes of heap
-** memory used by that pager cache is divided evenly between the attached
-** connections.)^  In other words, if none of the pager caches associated
-** with the database connection are shared, this request returns the same
-** value as DBSTATUS_CACHE_USED. Or, if one or more or the pager caches are
-** shared, the value returned by this call will be smaller than that returned
-** by DBSTATUS_CACHE_USED. ^The highwater mark associated with
-** SQLITE_DBSTATUS_CACHE_USED_SHARED is always 0.
-**
-** [[SQLITE_DBSTATUS_SCHEMA_USED]] ^(<dt>SQLITE_DBSTATUS_SCHEMA_USED</dt>
-** <dd>This parameter returns the approximate number of bytes of heap
-** memory used to store the schema for all databases associated
-** with the connection - main, temp, and any [ATTACH]-ed databases.)^ 
-** ^The full amount of memory used by the schemas is reported, even if the
-** schema memory is shared with other database connections due to
-** [shared cache mode] being enabled.
-** ^The highwater mark associated with SQLITE_DBSTATUS_SCHEMA_USED is always 0.
-**
-** [[SQLITE_DBSTATUS_STMT_USED]] ^(<dt>SQLITE_DBSTATUS_STMT_USED</dt>
-** <dd>This parameter returns the approximate number of bytes of heap
-** and lookaside memory used by all prepared statements associated with
-** the database connection.)^
-** ^The highwater mark associated with SQLITE_DBSTATUS_STMT_USED is always 0.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_CACHE_HIT]] ^(<dt>SQLITE_DBSTATUS_CACHE_HIT</dt>
-** <dd>This parameter returns the number of pager cache hits that have
-** occurred.)^ ^The highwater mark associated with SQLITE_DBSTATUS_CACHE_HIT 
-** is always 0.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_CACHE_MISS]] ^(<dt>SQLITE_DBSTATUS_CACHE_MISS</dt>
-** <dd>This parameter returns the number of pager cache misses that have
-** occurred.)^ ^The highwater mark associated with SQLITE_DBSTATUS_CACHE_MISS 
-** is always 0.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_CACHE_WRITE]] ^(<dt>SQLITE_DBSTATUS_CACHE_WRITE</dt>
-** <dd>This parameter returns the number of dirty cache entries that have
-** been written to disk. Specifically, the number of pages written to the
-** wal file in wal mode databases, or the number of pages written to the
-** database file in rollback mode databases. Any pages written as part of
-** transaction rollback or database recovery operations are not included.
-** If an IO or other error occurs while writing a page to disk, the effect
-** on subsequent SQLITE_DBSTATUS_CACHE_WRITE requests is undefined.)^ ^The
-** highwater mark associated with SQLITE_DBSTATUS_CACHE_WRITE is always 0.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_CACHE_SPILL]] ^(<dt>SQLITE_DBSTATUS_CACHE_SPILL</dt>
-** <dd>This parameter returns the number of dirty cache entries that have
-** been written to disk in the middle of a transaction due to the page
-** cache overflowing. Transactions are more efficient if they are written
-** to disk all at once. When pages spill mid-transaction, that introduces
-** additional overhead. This parameter can be used help identify
-** inefficiencies that can be resolved by increasing the cache size.
-** </dd>
-**
-** [[SQLITE_DBSTATUS_DEFERRED_FKS]] ^(<dt>SQLITE_DBSTATUS_DEFERRED_FKS</dt>
-** <dd>This parameter returns zero for the current value if and only if
-** all foreign key constraints (deferred or immediate) have been
-** resolved.)^  ^The highwater mark is always 0.
-** </dd>
-** </dl>
-*/
-#define SQLITE_DBSTATUS_LOOKASIDE_USED       0
-#define SQLITE_DBSTATUS_CACHE_USED           1
-#define SQLITE_DBSTATUS_SCHEMA_USED          2
-#define SQLITE_DBSTATUS_STMT_USED            3
-#define SQLITE_DBSTATUS_LOOKASIDE_HIT        4
-#define SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE  5
-#define SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL  6
-#define SQLITE_DBSTATUS_CACHE_HIT            7
-#define SQLITE_DBSTATUS_CACHE_MISS           8
-#define SQLITE_DBSTATUS_CACHE_WRITE          9
-#define SQLITE_DBSTATUS_DEFERRED_FKS        10
-#define SQLITE_DBSTATUS_CACHE_USED_SHARED   11
-#define SQLITE_DBSTATUS_CACHE_SPILL         12
-#define SQLITE_DBSTATUS_MAX                 12   /* Largest defined DBSTATUS */
-
-
-/*
-** CAPI3REF: Prepared Statement Status
-** METHOD: tdsqlite3_stmt
-**
-** ^(Each prepared statement maintains various
-** [SQLITE_STMTSTATUS counters] that measure the number
-** of times it has performed specific operations.)^  These counters can
-** be used to monitor the performance characteristics of the prepared
-** statements.  For example, if the number of table steps greatly exceeds
-** the number of table searches or result rows, that would tend to indicate
-** that the prepared statement is using a full table scan rather than
-** an index.  
-**
-** ^(This interface is used to retrieve and reset counter values from
-** a [prepared statement].  The first argument is the prepared statement
-** object to be interrogated.  The second argument
-** is an integer code for a specific [SQLITE_STMTSTATUS counter]
-** to be interrogated.)^
-** ^The current value of the requested counter is returned.
-** ^If the resetFlg is true, then the counter is reset to zero after this
-** interface call returns.
-**
-** See also: [tdsqlite3_status()] and [tdsqlite3_db_status()].
-*/
-SQLITE_API int tdsqlite3_stmt_status(tdsqlite3_stmt*, int op,int resetFlg);
-
-/*
-** CAPI3REF: Status Parameters for prepared statements
-** KEYWORDS: {SQLITE_STMTSTATUS counter} {SQLITE_STMTSTATUS counters}
-**
-** These preprocessor macros define integer codes that name counter
-** values associated with the [tdsqlite3_stmt_status()] interface.
-** The meanings of the various counters are as follows:
-**
-** <dl>
-** [[SQLITE_STMTSTATUS_FULLSCAN_STEP]] <dt>SQLITE_STMTSTATUS_FULLSCAN_STEP</dt>
-** <dd>^This is the number of times that SQLite has stepped forward in
-** a table as part of a full table scan.  Large numbers for this counter
-** may indicate opportunities for performance improvement through 
-** careful use of indices.</dd>
-**
-** [[SQLITE_STMTSTATUS_SORT]] <dt>SQLITE_STMTSTATUS_SORT</dt>
-** <dd>^This is the number of sort operations that have occurred.
-** A non-zero value in this counter may indicate an opportunity to
-** improvement performance through careful use of indices.</dd>
-**
-** [[SQLITE_STMTSTATUS_AUTOINDEX]] <dt>SQLITE_STMTSTATUS_AUTOINDEX</dt>
-** <dd>^This is the number of rows inserted into transient indices that
-** were created automatically in order to help joins run faster.
-** A non-zero value in this counter may indicate an opportunity to
-** improvement performance by adding permanent indices that do not
-** need to be reinitialized each time the statement is run.</dd>
-**
-** [[SQLITE_STMTSTATUS_VM_STEP]] <dt>SQLITE_STMTSTATUS_VM_STEP</dt>
-** <dd>^This is the number of virtual machine operations executed
-** by the prepared statement if that number is less than or equal
-** to 2147483647.  The number of virtual machine operations can be 
-** used as a proxy for the total work done by the prepared statement.
-** If the number of virtual machine operations exceeds 2147483647
-** then the value returned by this statement status code is undefined.
-**
-** [[SQLITE_STMTSTATUS_REPREPARE]] <dt>SQLITE_STMTSTATUS_REPREPARE</dt>
-** <dd>^This is the number of times that the prepare statement has been
-** automatically regenerated due to schema changes or changes to 
-** [bound parameters] that might affect the query plan.
-**
-** [[SQLITE_STMTSTATUS_RUN]] <dt>SQLITE_STMTSTATUS_RUN</dt>
-** <dd>^This is the number of times that the prepared statement has
-** been run.  A single "run" for the purposes of this counter is one
-** or more calls to [tdsqlite3_step()] followed by a call to [tdsqlite3_reset()].
-** The counter is incremented on the first [tdsqlite3_step()] call of each
-** cycle.
-**
-** [[SQLITE_STMTSTATUS_MEMUSED]] <dt>SQLITE_STMTSTATUS_MEMUSED</dt>
-** <dd>^This is the approximate number of bytes of heap memory
-** used to store the prepared statement.  ^This value is not actually
-** a counter, and so the resetFlg parameter to tdsqlite3_stmt_status()
-** is ignored when the opcode is SQLITE_STMTSTATUS_MEMUSED.
-** </dd>
-** </dl>
-*/
-#define SQLITE_STMTSTATUS_FULLSCAN_STEP     1
-#define SQLITE_STMTSTATUS_SORT              2
-#define SQLITE_STMTSTATUS_AUTOINDEX         3
-#define SQLITE_STMTSTATUS_VM_STEP           4
-#define SQLITE_STMTSTATUS_REPREPARE         5
-#define SQLITE_STMTSTATUS_RUN               6
-#define SQLITE_STMTSTATUS_MEMUSED           99
-
-/*
-** CAPI3REF: Custom Page Cache Object
-**
-** The tdsqlite3_pcache type is opaque.  It is implemented by
-** the pluggable module.  The SQLite core has no knowledge of
-** its size or internal structure and never deals with the
-** tdsqlite3_pcache object except by holding and passing pointers
-** to the object.
-**
-** See [tdsqlite3_pcache_methods2] for additional information.
-*/
-typedef struct tdsqlite3_pcache tdsqlite3_pcache;
-
-/*
-** CAPI3REF: Custom Page Cache Object
-**
-** The tdsqlite3_pcache_page object represents a single page in the
-** page cache.  The page cache will allocate instances of this
-** object.  Various methods of the page cache use pointers to instances
-** of this object as parameters or as their return value.
-**
-** See [tdsqlite3_pcache_methods2] for additional information.
-*/
-typedef struct tdsqlite3_pcache_page tdsqlite3_pcache_page;
-struct tdsqlite3_pcache_page {
-  void *pBuf;        /* The content of the page */
-  void *pExtra;      /* Extra information associated with the page */
-};
-
-/*
-** CAPI3REF: Application Defined Page Cache.
-** KEYWORDS: {page cache}
-**
-** ^(The [tdsqlite3_config]([SQLITE_CONFIG_PCACHE2], ...) interface can
-** register an alternative page cache implementation by passing in an 
-** instance of the tdsqlite3_pcache_methods2 structure.)^
-** In many applications, most of the heap memory allocated by 
-** SQLite is used for the page cache.
-** By implementing a 
-** custom page cache using this API, an application can better control
-** the amount of memory consumed by SQLite, the way in which 
-** that memory is allocated and released, and the policies used to 
-** determine exactly which parts of a database file are cached and for 
-** how long.
-**
-** The alternative page cache mechanism is an
-** extreme measure that is only needed by the most demanding applications.
-** The built-in page cache is recommended for most uses.
-**
-** ^(The contents of the tdsqlite3_pcache_methods2 structure are copied to an
-** internal buffer by SQLite within the call to [tdsqlite3_config].  Hence
-** the application may discard the parameter after the call to
-** [tdsqlite3_config()] returns.)^
-**
-** [[the xInit() page cache method]]
-** ^(The xInit() method is called once for each effective 
-** call to [tdsqlite3_initialize()])^
-** (usually only once during the lifetime of the process). ^(The xInit()
-** method is passed a copy of the tdsqlite3_pcache_methods2.pArg value.)^
-** The intent of the xInit() method is to set up global data structures 
-** required by the custom page cache implementation. 
-** ^(If the xInit() method is NULL, then the 
-** built-in default page cache is used instead of the application defined
-** page cache.)^
-**
-** [[the xShutdown() page cache method]]
-** ^The xShutdown() method is called by [tdsqlite3_shutdown()].
-** It can be used to clean up 
-** any outstanding resources before process shutdown, if required.
-** ^The xShutdown() method may be NULL.
-**
-** ^SQLite automatically serializes calls to the xInit method,
-** so the xInit method need not be threadsafe.  ^The
-** xShutdown method is only called from [tdsqlite3_shutdown()] so it does
-** not need to be threadsafe either.  All other methods must be threadsafe
-** in multithreaded applications.
-**
-** ^SQLite will never invoke xInit() more than once without an intervening
-** call to xShutdown().
-**
-** [[the xCreate() page cache methods]]
-** ^SQLite invokes the xCreate() method to construct a new cache instance.
-** SQLite will typically create one cache instance for each open database file,
-** though this is not guaranteed. ^The
-** first parameter, szPage, is the size in bytes of the pages that must
-** be allocated by the cache.  ^szPage will always a power of two.  ^The
-** second parameter szExtra is a number of bytes of extra storage 
-** associated with each page cache entry.  ^The szExtra parameter will
-** a number less than 250.  SQLite will use the
-** extra szExtra bytes on each page to store metadata about the underlying
-** database page on disk.  The value passed into szExtra depends
-** on the SQLite version, the target platform, and how SQLite was compiled.
-** ^The third argument to xCreate(), bPurgeable, is true if the cache being
-** created will be used to cache database pages of a file stored on disk, or
-** false if it is used for an in-memory database. The cache implementation
-** does not have to do anything special based with the value of bPurgeable;
-** it is purely advisory.  ^On a cache where bPurgeable is false, SQLite will
-** never invoke xUnpin() except to deliberately delete a page.
-** ^In other words, calls to xUnpin() on a cache with bPurgeable set to
-** false will always have the "discard" flag set to true.  
-** ^Hence, a cache created with bPurgeable false will
-** never contain any unpinned pages.
-**
-** [[the xCachesize() page cache method]]
-** ^(The xCachesize() method may be called at any time by SQLite to set the
-** suggested maximum cache-size (number of pages stored by) the cache
-** instance passed as the first argument. This is the value configured using
-** the SQLite "[PRAGMA cache_size]" command.)^  As with the bPurgeable
-** parameter, the implementation is not required to do anything with this
-** value; it is advisory only.
-**
-** [[the xPagecount() page cache methods]]
-** The xPagecount() method must return the number of pages currently
-** stored in the cache, both pinned and unpinned.
-** 
-** [[the xFetch() page cache methods]]
-** The xFetch() method locates a page in the cache and returns a pointer to 
-** an tdsqlite3_pcache_page object associated with that page, or a NULL pointer.
-** The pBuf element of the returned tdsqlite3_pcache_page object will be a
-** pointer to a buffer of szPage bytes used to store the content of a 
-** single database page.  The pExtra element of tdsqlite3_pcache_page will be
-** a pointer to the szExtra bytes of extra storage that SQLite has requested
-** for each entry in the page cache.
-**
-** The page to be fetched is determined by the key. ^The minimum key value
-** is 1.  After it has been retrieved using xFetch, the page is considered
-** to be "pinned".
-**
-** If the requested page is already in the page cache, then the page cache
-** implementation must return a pointer to the page buffer with its content
-** intact.  If the requested page is not already in the cache, then the
-** cache implementation should use the value of the createFlag
-** parameter to help it determined what action to take:
-**
-** <table border=1 width=85% align=center>
-** <tr><th> createFlag <th> Behavior when page is not already in cache
-** <tr><td> 0 <td> Do not allocate a new page.  Return NULL.
-** <tr><td> 1 <td> Allocate a new page if it easy and convenient to do so.
-**                 Otherwise return NULL.
-** <tr><td> 2 <td> Make every effort to allocate a new page.  Only return
-**                 NULL if allocating a new page is effectively impossible.
-** </table>
-**
-** ^(SQLite will normally invoke xFetch() with a createFlag of 0 or 1.  SQLite
-** will only use a createFlag of 2 after a prior call with a createFlag of 1
-** failed.)^  In between the xFetch() calls, SQLite may
-** attempt to unpin one or more cache pages by spilling the content of
-** pinned pages to disk and synching the operating system disk cache.
-**
-** [[the xUnpin() page cache method]]
-** ^xUnpin() is called by SQLite with a pointer to a currently pinned page
-** as its second argument.  If the third parameter, discard, is non-zero,
-** then the page must be evicted from the cache.
-** ^If the discard parameter is
-** zero, then the page may be discarded or retained at the discretion of
-** page cache implementation. ^The page cache implementation
-** may choose to evict unpinned pages at any time.
-**
-** The cache must not perform any reference counting. A single 
-** call to xUnpin() unpins the page regardless of the number of prior calls 
-** to xFetch().
-**
-** [[the xRekey() page cache methods]]
-** The xRekey() method is used to change the key value associated with the
-** page passed as the second argument. If the cache
-** previously contains an entry associated with newKey, it must be
-** discarded. ^Any prior cache entry associated with newKey is guaranteed not
-** to be pinned.
-**
-** When SQLite calls the xTruncate() method, the cache must discard all
-** existing cache entries with page numbers (keys) greater than or equal
-** to the value of the iLimit parameter passed to xTruncate(). If any
-** of these pages are pinned, they are implicitly unpinned, meaning that
-** they can be safely discarded.
-**
-** [[the xDestroy() page cache method]]
-** ^The xDestroy() method is used to delete a cache allocated by xCreate().
-** All resources associated with the specified cache should be freed. ^After
-** calling the xDestroy() method, SQLite considers the [tdsqlite3_pcache*]
-** handle invalid, and will not use it with any other tdsqlite3_pcache_methods2
-** functions.
-**
-** [[the xShrink() page cache method]]
-** ^SQLite invokes the xShrink() method when it wants the page cache to
-** free up as much of heap memory as possible.  The page cache implementation
-** is not obligated to free any memory, but well-behaved implementations should
-** do their best.
-*/
-typedef struct tdsqlite3_pcache_methods2 tdsqlite3_pcache_methods2;
-struct tdsqlite3_pcache_methods2 {
-  int iVersion;
-  void *pArg;
-  int (*xInit)(void*);
-  void (*xShutdown)(void*);
-  tdsqlite3_pcache *(*xCreate)(int szPage, int szExtra, int bPurgeable);
-  void (*xCachesize)(tdsqlite3_pcache*, int nCachesize);
-  int (*xPagecount)(tdsqlite3_pcache*);
-  tdsqlite3_pcache_page *(*xFetch)(tdsqlite3_pcache*, unsigned key, int createFlag);
-  void (*xUnpin)(tdsqlite3_pcache*, tdsqlite3_pcache_page*, int discard);
-  void (*xRekey)(tdsqlite3_pcache*, tdsqlite3_pcache_page*, 
-      unsigned oldKey, unsigned newKey);
-  void (*xTruncate)(tdsqlite3_pcache*, unsigned iLimit);
-  void (*xDestroy)(tdsqlite3_pcache*);
-  void (*xShrink)(tdsqlite3_pcache*);
-};
-
-/*
-** This is the obsolete pcache_methods object that has now been replaced
-** by tdsqlite3_pcache_methods2.  This object is not used by SQLite.  It is
-** retained in the header file for backwards compatibility only.
-*/
-typedef struct tdsqlite3_pcache_methods tdsqlite3_pcache_methods;
-struct tdsqlite3_pcache_methods {
-  void *pArg;
-  int (*xInit)(void*);
-  void (*xShutdown)(void*);
-  tdsqlite3_pcache *(*xCreate)(int szPage, int bPurgeable);
-  void (*xCachesize)(tdsqlite3_pcache*, int nCachesize);
-  int (*xPagecount)(tdsqlite3_pcache*);
-  void *(*xFetch)(tdsqlite3_pcache*, unsigned key, int createFlag);
-  void (*xUnpin)(tdsqlite3_pcache*, void*, int discard);
-  void (*xRekey)(tdsqlite3_pcache*, void*, unsigned oldKey, unsigned newKey);
-  void (*xTruncate)(tdsqlite3_pcache*, unsigned iLimit);
-  void (*xDestroy)(tdsqlite3_pcache*);
-};
-
-
-/*
-** CAPI3REF: Online Backup Object
-**
-** The tdsqlite3_backup object records state information about an ongoing
-** online backup operation.  ^The tdsqlite3_backup object is created by
-** a call to [tdsqlite3_backup_init()] and is destroyed by a call to
-** [tdsqlite3_backup_finish()].
-**
-** See Also: [Using the SQLite Online Backup API]
-*/
-typedef struct tdsqlite3_backup tdsqlite3_backup;
-
-/*
-** CAPI3REF: Online Backup API.
-**
-** The backup API copies the content of one database into another.
-** It is useful either for creating backups of databases or
-** for copying in-memory databases to or from persistent files. 
-**
-** See Also: [Using the SQLite Online Backup API]
-**
-** ^SQLite holds a write transaction open on the destination database file
-** for the duration of the backup operation.
-** ^The source database is read-locked only while it is being read;
-** it is not locked continuously for the entire backup operation.
-** ^Thus, the backup may be performed on a live source database without
-** preventing other database connections from
-** reading or writing to the source database while the backup is underway.
-** 
-** ^(To perform a backup operation: 
-**   <ol>
-**     <li><b>tdsqlite3_backup_init()</b> is called once to initialize the
-**         backup, 
-**     <li><b>tdsqlite3_backup_step()</b> is called one or more times to transfer 
-**         the data between the two databases, and finally
-**     <li><b>tdsqlite3_backup_finish()</b> is called to release all resources 
-**         associated with the backup operation. 
-**   </ol>)^
-** There should be exactly one call to tdsqlite3_backup_finish() for each
-** successful call to tdsqlite3_backup_init().
-**
-** [[tdsqlite3_backup_init()]] <b>tdsqlite3_backup_init()</b>
-**
-** ^The D and N arguments to tdsqlite3_backup_init(D,N,S,M) are the 
-** [database connection] associated with the destination database 
-** and the database name, respectively.
-** ^The database name is "main" for the main database, "temp" for the
-** temporary database, or the name specified after the AS keyword in
-** an [ATTACH] statement for an attached database.
-** ^The S and M arguments passed to 
-** tdsqlite3_backup_init(D,N,S,M) identify the [database connection]
-** and database name of the source database, respectively.
-** ^The source and destination [database connections] (parameters S and D)
-** must be different or else tdsqlite3_backup_init(D,N,S,M) will fail with
-** an error.
-**
-** ^A call to tdsqlite3_backup_init() will fail, returning NULL, if 
-** there is already a read or read-write transaction open on the 
-** destination database.
-**
-** ^If an error occurs within tdsqlite3_backup_init(D,N,S,M), then NULL is
-** returned and an error code and error message are stored in the
-** destination [database connection] D.
-** ^The error code and message for the failed call to tdsqlite3_backup_init()
-** can be retrieved using the [tdsqlite3_errcode()], [tdsqlite3_errmsg()], and/or
-** [tdsqlite3_errmsg16()] functions.
-** ^A successful call to tdsqlite3_backup_init() returns a pointer to an
-** [tdsqlite3_backup] object.
-** ^The [tdsqlite3_backup] object may be used with the tdsqlite3_backup_step() and
-** tdsqlite3_backup_finish() functions to perform the specified backup 
-** operation.
-**
-** [[tdsqlite3_backup_step()]] <b>tdsqlite3_backup_step()</b>
-**
-** ^Function tdsqlite3_backup_step(B,N) will copy up to N pages between 
-** the source and destination databases specified by [tdsqlite3_backup] object B.
-** ^If N is negative, all remaining source pages are copied. 
-** ^If tdsqlite3_backup_step(B,N) successfully copies N pages and there
-** are still more pages to be copied, then the function returns [SQLITE_OK].
-** ^If tdsqlite3_backup_step(B,N) successfully finishes copying all pages
-** from source to destination, then it returns [SQLITE_DONE].
-** ^If an error occurs while running tdsqlite3_backup_step(B,N),
-** then an [error code] is returned. ^As well as [SQLITE_OK] and
-** [SQLITE_DONE], a call to tdsqlite3_backup_step() may return [SQLITE_READONLY],
-** [SQLITE_NOMEM], [SQLITE_BUSY], [SQLITE_LOCKED], or an
-** [SQLITE_IOERR_ACCESS | SQLITE_IOERR_XXX] extended error code.
-**
-** ^(The tdsqlite3_backup_step() might return [SQLITE_READONLY] if
-** <ol>
-** <li> the destination database was opened read-only, or
-** <li> the destination database is using write-ahead-log journaling
-** and the destination and source page sizes differ, or
-** <li> the destination database is an in-memory database and the
-** destination and source page sizes differ.
-** </ol>)^
-**
-** ^If tdsqlite3_backup_step() cannot obtain a required file-system lock, then
-** the [tdsqlite3_busy_handler | busy-handler function]
-** is invoked (if one is specified). ^If the 
-** busy-handler returns non-zero before the lock is available, then 
-** [SQLITE_BUSY] is returned to the caller. ^In this case the call to
-** tdsqlite3_backup_step() can be retried later. ^If the source
-** [database connection]
-** is being used to write to the source database when tdsqlite3_backup_step()
-** is called, then [SQLITE_LOCKED] is returned immediately. ^Again, in this
-** case the call to tdsqlite3_backup_step() can be retried later on. ^(If
-** [SQLITE_IOERR_ACCESS | SQLITE_IOERR_XXX], [SQLITE_NOMEM], or
-** [SQLITE_READONLY] is returned, then 
-** there is no point in retrying the call to tdsqlite3_backup_step(). These 
-** errors are considered fatal.)^  The application must accept 
-** that the backup operation has failed and pass the backup operation handle 
-** to the tdsqlite3_backup_finish() to release associated resources.
-**
-** ^The first call to tdsqlite3_backup_step() obtains an exclusive lock
-** on the destination file. ^The exclusive lock is not released until either 
-** tdsqlite3_backup_finish() is called or the backup operation is complete 
-** and tdsqlite3_backup_step() returns [SQLITE_DONE].  ^Every call to
-** tdsqlite3_backup_step() obtains a [shared lock] on the source database that
-** lasts for the duration of the tdsqlite3_backup_step() call.
-** ^Because the source database is not locked between calls to
-** tdsqlite3_backup_step(), the source database may be modified mid-way
-** through the backup process.  ^If the source database is modified by an
-** external process or via a database connection other than the one being
-** used by the backup operation, then the backup will be automatically
-** restarted by the next call to tdsqlite3_backup_step(). ^If the source 
-** database is modified by the using the same database connection as is used
-** by the backup operation, then the backup database is automatically
-** updated at the same time.
-**
-** [[tdsqlite3_backup_finish()]] <b>tdsqlite3_backup_finish()</b>
-**
-** When tdsqlite3_backup_step() has returned [SQLITE_DONE], or when the 
-** application wishes to abandon the backup operation, the application
-** should destroy the [tdsqlite3_backup] by passing it to tdsqlite3_backup_finish().
-** ^The tdsqlite3_backup_finish() interfaces releases all
-** resources associated with the [tdsqlite3_backup] object. 
-** ^If tdsqlite3_backup_step() has not yet returned [SQLITE_DONE], then any
-** active write-transaction on the destination database is rolled back.
-** The [tdsqlite3_backup] object is invalid
-** and may not be used following a call to tdsqlite3_backup_finish().
-**
-** ^The value returned by tdsqlite3_backup_finish is [SQLITE_OK] if no
-** tdsqlite3_backup_step() errors occurred, regardless or whether or not
-** tdsqlite3_backup_step() completed.
-** ^If an out-of-memory condition or IO error occurred during any prior
-** tdsqlite3_backup_step() call on the same [tdsqlite3_backup] object, then
-** tdsqlite3_backup_finish() returns the corresponding [error code].
-**
-** ^A return of [SQLITE_BUSY] or [SQLITE_LOCKED] from tdsqlite3_backup_step()
-** is not a permanent error and does not affect the return value of
-** tdsqlite3_backup_finish().
-**
-** [[tdsqlite3_backup_remaining()]] [[tdsqlite3_backup_pagecount()]]
-** <b>tdsqlite3_backup_remaining() and tdsqlite3_backup_pagecount()</b>
-**
-** ^The tdsqlite3_backup_remaining() routine returns the number of pages still
-** to be backed up at the conclusion of the most recent tdsqlite3_backup_step().
-** ^The tdsqlite3_backup_pagecount() routine returns the total number of pages
-** in the source database at the conclusion of the most recent
-** tdsqlite3_backup_step().
-** ^(The values returned by these functions are only updated by
-** tdsqlite3_backup_step(). If the source database is modified in a way that
-** changes the size of the source database or the number of pages remaining,
-** those changes are not reflected in the output of tdsqlite3_backup_pagecount()
-** and tdsqlite3_backup_remaining() until after the next
-** tdsqlite3_backup_step().)^
-**
-** <b>Concurrent Usage of Database Handles</b>
-**
-** ^The source [database connection] may be used by the application for other
-** purposes while a backup operation is underway or being initialized.
-** ^If SQLite is compiled and configured to support threadsafe database
-** connections, then the source database connection may be used concurrently
-** from within other threads.
-**
-** However, the application must guarantee that the destination 
-** [database connection] is not passed to any other API (by any thread) after 
-** tdsqlite3_backup_init() is called and before the corresponding call to
-** tdsqlite3_backup_finish().  SQLite does not currently check to see
-** if the application incorrectly accesses the destination [database connection]
-** and so no error code is reported, but the operations may malfunction
-** nevertheless.  Use of the destination database connection while a
-** backup is in progress might also also cause a mutex deadlock.
-**
-** If running in [shared cache mode], the application must
-** guarantee that the shared cache used by the destination database
-** is not accessed while the backup is running. In practice this means
-** that the application must guarantee that the disk file being 
-** backed up to is not accessed by any connection within the process,
-** not just the specific connection that was passed to tdsqlite3_backup_init().
-**
-** The [tdsqlite3_backup] object itself is partially threadsafe. Multiple 
-** threads may safely make multiple concurrent calls to tdsqlite3_backup_step().
-** However, the tdsqlite3_backup_remaining() and tdsqlite3_backup_pagecount()
-** APIs are not strictly speaking threadsafe. If they are invoked at the
-** same time as another thread is invoking tdsqlite3_backup_step() it is
-** possible that they return invalid values.
-*/
-SQLITE_API tdsqlite3_backup *tdsqlite3_backup_init(
-  tdsqlite3 *pDest,                        /* Destination database handle */
-  const char *zDestName,                 /* Destination database name */
-  tdsqlite3 *pSource,                      /* Source database handle */
-  const char *zSourceName                /* Source database name */
-);
-SQLITE_API int tdsqlite3_backup_step(tdsqlite3_backup *p, int nPage);
-SQLITE_API int tdsqlite3_backup_finish(tdsqlite3_backup *p);
-SQLITE_API int tdsqlite3_backup_remaining(tdsqlite3_backup *p);
-SQLITE_API int tdsqlite3_backup_pagecount(tdsqlite3_backup *p);
-
-/*
-** CAPI3REF: Unlock Notification
-** METHOD: tdsqlite3
-**
-** ^When running in shared-cache mode, a database operation may fail with
-** an [SQLITE_LOCKED] error if the required locks on the shared-cache or
-** individual tables within the shared-cache cannot be obtained. See
-** [SQLite Shared-Cache Mode] for a description of shared-cache locking. 
-** ^This API may be used to register a callback that SQLite will invoke 
-** when the connection currently holding the required lock relinquishes it.
-** ^This API is only available if the library was compiled with the
-** [SQLITE_ENABLE_UNLOCK_NOTIFY] C-preprocessor symbol defined.
-**
-** See Also: [Using the SQLite Unlock Notification Feature].
-**
-** ^Shared-cache locks are released when a database connection concludes
-** its current transaction, either by committing it or rolling it back. 
-**
-** ^When a connection (known as the blocked connection) fails to obtain a
-** shared-cache lock and SQLITE_LOCKED is returned to the caller, the
-** identity of the database connection (the blocking connection) that
-** has locked the required resource is stored internally. ^After an 
-** application receives an SQLITE_LOCKED error, it may call the
-** tdsqlite3_unlock_notify() method with the blocked connection handle as 
-** the first argument to register for a callback that will be invoked
-** when the blocking connections current transaction is concluded. ^The
-** callback is invoked from within the [tdsqlite3_step] or [tdsqlite3_close]
-** call that concludes the blocking connection's transaction.
-**
-** ^(If tdsqlite3_unlock_notify() is called in a multi-threaded application,
-** there is a chance that the blocking connection will have already
-** concluded its transaction by the time tdsqlite3_unlock_notify() is invoked.
-** If this happens, then the specified callback is invoked immediately,
-** from within the call to tdsqlite3_unlock_notify().)^
-**
-** ^If the blocked connection is attempting to obtain a write-lock on a
-** shared-cache table, and more than one other connection currently holds
-** a read-lock on the same table, then SQLite arbitrarily selects one of 
-** the other connections to use as the blocking connection.
-**
-** ^(There may be at most one unlock-notify callback registered by a 
-** blocked connection. If tdsqlite3_unlock_notify() is called when the
-** blocked connection already has a registered unlock-notify callback,
-** then the new callback replaces the old.)^ ^If tdsqlite3_unlock_notify() is
-** called with a NULL pointer as its second argument, then any existing
-** unlock-notify callback is canceled. ^The blocked connections 
-** unlock-notify callback may also be canceled by closing the blocked
-** connection using [tdsqlite3_close()].
-**
-** The unlock-notify callback is not reentrant. If an application invokes
-** any tdsqlite3_xxx API functions from within an unlock-notify callback, a
-** crash or deadlock may be the result.
-**
-** ^Unless deadlock is detected (see below), tdsqlite3_unlock_notify() always
-** returns SQLITE_OK.
-**
-** <b>Callback Invocation Details</b>
-**
-** When an unlock-notify callback is registered, the application provides a 
-** single void* pointer that is passed to the callback when it is invoked.
-** However, the signature of the callback function allows SQLite to pass
-** it an array of void* context pointers. The first argument passed to
-** an unlock-notify callback is a pointer to an array of void* pointers,
-** and the second is the number of entries in the array.
-**
-** When a blocking connection's transaction is concluded, there may be
-** more than one blocked connection that has registered for an unlock-notify
-** callback. ^If two or more such blocked connections have specified the
-** same callback function, then instead of invoking the callback function
-** multiple times, it is invoked once with the set of void* context pointers
-** specified by the blocked connections bundled together into an array.
-** This gives the application an opportunity to prioritize any actions 
-** related to the set of unblocked database connections.
-**
-** <b>Deadlock Detection</b>
-**
-** Assuming that after registering for an unlock-notify callback a 
-** database waits for the callback to be issued before taking any further
-** action (a reasonable assumption), then using this API may cause the
-** application to deadlock. For example, if connection X is waiting for
-** connection Y's transaction to be concluded, and similarly connection
-** Y is waiting on connection X's transaction, then neither connection
-** will proceed and the system may remain deadlocked indefinitely.
-**
-** To avoid this scenario, the tdsqlite3_unlock_notify() performs deadlock
-** detection. ^If a given call to tdsqlite3_unlock_notify() would put the
-** system in a deadlocked state, then SQLITE_LOCKED is returned and no
-** unlock-notify callback is registered. The system is said to be in
-** a deadlocked state if connection A has registered for an unlock-notify
-** callback on the conclusion of connection B's transaction, and connection
-** B has itself registered for an unlock-notify callback when connection
-** A's transaction is concluded. ^Indirect deadlock is also detected, so
-** the system is also considered to be deadlocked if connection B has
-** registered for an unlock-notify callback on the conclusion of connection
-** C's transaction, where connection C is waiting on connection A. ^Any
-** number of levels of indirection are allowed.
-**
-** <b>The "DROP TABLE" Exception</b>
-**
-** When a call to [tdsqlite3_step()] returns SQLITE_LOCKED, it is almost 
-** always appropriate to call tdsqlite3_unlock_notify(). There is however,
-** one exception. When executing a "DROP TABLE" or "DROP INDEX" statement,
-** SQLite checks if there are any currently executing SELECT statements
-** that belong to the same connection. If there are, SQLITE_LOCKED is
-** returned. In this case there is no "blocking connection", so invoking
-** tdsqlite3_unlock_notify() results in the unlock-notify callback being
-** invoked immediately. If the application then re-attempts the "DROP TABLE"
-** or "DROP INDEX" query, an infinite loop might be the result.
-**
-** One way around this problem is to check the extended error code returned
-** by an tdsqlite3_step() call. ^(If there is a blocking connection, then the
-** extended error code is set to SQLITE_LOCKED_SHAREDCACHE. Otherwise, in
-** the special "DROP TABLE/INDEX" case, the extended error code is just 
-** SQLITE_LOCKED.)^
-*/
-SQLITE_API int tdsqlite3_unlock_notify(
-  tdsqlite3 *pBlocked,                          /* Waiting connection */
-  void (*xNotify)(void **apArg, int nArg),    /* Callback function to invoke */
-  void *pNotifyArg                            /* Argument to pass to xNotify */
-);
-
-
-/*
-** CAPI3REF: String Comparison
-**
-** ^The [tdsqlite3_stricmp()] and [tdsqlite3_strnicmp()] APIs allow applications
-** and extensions to compare the contents of two buffers containing UTF-8
-** strings in a case-independent fashion, using the same definition of "case
-** independence" that SQLite uses internally when comparing identifiers.
-*/
-SQLITE_API int tdsqlite3_stricmp(const char *, const char *);
-SQLITE_API int tdsqlite3_strnicmp(const char *, const char *, int);
-
-/*
-** CAPI3REF: String Globbing
-*
-** ^The [tdsqlite3_strglob(P,X)] interface returns zero if and only if
-** string X matches the [GLOB] pattern P.
-** ^The definition of [GLOB] pattern matching used in
-** [tdsqlite3_strglob(P,X)] is the same as for the "X GLOB P" operator in the
-** SQL dialect understood by SQLite.  ^The [tdsqlite3_strglob(P,X)] function
-** is case sensitive.
-**
-** Note that this routine returns zero on a match and non-zero if the strings
-** do not match, the same as [tdsqlite3_stricmp()] and [tdsqlite3_strnicmp()].
-**
-** See also: [tdsqlite3_strlike()].
-*/
-SQLITE_API int tdsqlite3_strglob(const char *zGlob, const char *zStr);
-
-/*
-** CAPI3REF: String LIKE Matching
-*
-** ^The [tdsqlite3_strlike(P,X,E)] interface returns zero if and only if
-** string X matches the [LIKE] pattern P with escape character E.
-** ^The definition of [LIKE] pattern matching used in
-** [tdsqlite3_strlike(P,X,E)] is the same as for the "X LIKE P ESCAPE E"
-** operator in the SQL dialect understood by SQLite.  ^For "X LIKE P" without
-** the ESCAPE clause, set the E parameter of [tdsqlite3_strlike(P,X,E)] to 0.
-** ^As with the LIKE operator, the [tdsqlite3_strlike(P,X,E)] function is case
-** insensitive - equivalent upper and lower case ASCII characters match
-** one another.
-**
-** ^The [tdsqlite3_strlike(P,X,E)] function matches Unicode characters, though
-** only ASCII characters are case folded.
-**
-** Note that this routine returns zero on a match and non-zero if the strings
-** do not match, the same as [tdsqlite3_stricmp()] and [tdsqlite3_strnicmp()].
-**
-** See also: [tdsqlite3_strglob()].
-*/
-SQLITE_API int tdsqlite3_strlike(const char *zGlob, const char *zStr, unsigned int cEsc);
-
-/*
-** CAPI3REF: Error Logging Interface
-**
-** ^The [tdsqlite3_log()] interface writes a message into the [error log]
-** established by the [SQLITE_CONFIG_LOG] option to [tdsqlite3_config()].
-** ^If logging is enabled, the zFormat string and subsequent arguments are
-** used with [tdsqlite3_snprintf()] to generate the final output string.
-**
-** The tdsqlite3_log() interface is intended for use by extensions such as
-** virtual tables, collating functions, and SQL functions.  While there is
-** nothing to prevent an application from calling tdsqlite3_log(), doing so
-** is considered bad form.
-**
-** The zFormat string must not be NULL.
-**
-** To avoid deadlocks and other threading problems, the tdsqlite3_log() routine
-** will not use dynamically allocated memory.  The log message is stored in
-** a fixed-length buffer on the stack.  If the log message is longer than
-** a few hundred characters, it will be truncated to the length of the
-** buffer.
-*/
-SQLITE_API void tdsqlite3_log(int iErrCode, const char *zFormat, ...);
-
-/*
-** CAPI3REF: Write-Ahead Log Commit Hook
-** METHOD: tdsqlite3
-**
-** ^The [tdsqlite3_wal_hook()] function is used to register a callback that
-** is invoked each time data is committed to a database in wal mode.
-**
-** ^(The callback is invoked by SQLite after the commit has taken place and 
-** the associated write-lock on the database released)^, so the implementation 
-** may read, write or [checkpoint] the database as required.
-**
-** ^The first parameter passed to the callback function when it is invoked
-** is a copy of the third parameter passed to tdsqlite3_wal_hook() when
-** registering the callback. ^The second is a copy of the database handle.
-** ^The third parameter is the name of the database that was written to -
-** either "main" or the name of an [ATTACH]-ed database. ^The fourth parameter
-** is the number of pages currently in the write-ahead log file,
-** including those that were just committed.
-**
-** The callback function should normally return [SQLITE_OK].  ^If an error
-** code is returned, that error will propagate back up through the
-** SQLite code base to cause the statement that provoked the callback
-** to report an error, though the commit will have still occurred. If the
-** callback returns [SQLITE_ROW] or [SQLITE_DONE], or if it returns a value
-** that does not correspond to any valid SQLite error code, the results
-** are undefined.
-**
-** A single database handle may have at most a single write-ahead log callback 
-** registered at one time. ^Calling [tdsqlite3_wal_hook()] replaces any
-** previously registered write-ahead log callback. ^Note that the
-** [tdsqlite3_wal_autocheckpoint()] interface and the
-** [wal_autocheckpoint pragma] both invoke [tdsqlite3_wal_hook()] and will
-** overwrite any prior [tdsqlite3_wal_hook()] settings.
-*/
-SQLITE_API void *tdsqlite3_wal_hook(
-  tdsqlite3*, 
-  int(*)(void *,tdsqlite3*,const char*,int),
-  void*
-);
-
-/*
-** CAPI3REF: Configure an auto-checkpoint
-** METHOD: tdsqlite3
-**
-** ^The [tdsqlite3_wal_autocheckpoint(D,N)] is a wrapper around
-** [tdsqlite3_wal_hook()] that causes any database on [database connection] D
-** to automatically [checkpoint]
-** after committing a transaction if there are N or
-** more frames in the [write-ahead log] file.  ^Passing zero or 
-** a negative value as the nFrame parameter disables automatic
-** checkpoints entirely.
-**
-** ^The callback registered by this function replaces any existing callback
-** registered using [tdsqlite3_wal_hook()].  ^Likewise, registering a callback
-** using [tdsqlite3_wal_hook()] disables the automatic checkpoint mechanism
-** configured by this function.
-**
-** ^The [wal_autocheckpoint pragma] can be used to invoke this interface
-** from SQL.
-**
-** ^Checkpoints initiated by this mechanism are
-** [tdsqlite3_wal_checkpoint_v2|PASSIVE].
-**
-** ^Every new [database connection] defaults to having the auto-checkpoint
-** enabled with a threshold of 1000 or [SQLITE_DEFAULT_WAL_AUTOCHECKPOINT]
-** pages.  The use of this interface
-** is only necessary if the default setting is found to be suboptimal
-** for a particular application.
-*/
-SQLITE_API int tdsqlite3_wal_autocheckpoint(tdsqlite3 *db, int N);
-
-/*
-** CAPI3REF: Checkpoint a database
-** METHOD: tdsqlite3
-**
-** ^(The tdsqlite3_wal_checkpoint(D,X) is equivalent to
-** [tdsqlite3_wal_checkpoint_v2](D,X,[SQLITE_CHECKPOINT_PASSIVE],0,0).)^
-**
-** In brief, tdsqlite3_wal_checkpoint(D,X) causes the content in the 
-** [write-ahead log] for database X on [database connection] D to be
-** transferred into the database file and for the write-ahead log to
-** be reset.  See the [checkpointing] documentation for addition
-** information.
-**
-** This interface used to be the only way to cause a checkpoint to
-** occur.  But then the newer and more powerful [tdsqlite3_wal_checkpoint_v2()]
-** interface was added.  This interface is retained for backwards
-** compatibility and as a convenience for applications that need to manually
-** start a callback but which do not need the full power (and corresponding
-** complication) of [tdsqlite3_wal_checkpoint_v2()].
-*/
-SQLITE_API int tdsqlite3_wal_checkpoint(tdsqlite3 *db, const char *zDb);
-
-/*
-** CAPI3REF: Checkpoint a database
-** METHOD: tdsqlite3
-**
-** ^(The tdsqlite3_wal_checkpoint_v2(D,X,M,L,C) interface runs a checkpoint
-** operation on database X of [database connection] D in mode M.  Status
-** information is written back into integers pointed to by L and C.)^
-** ^(The M parameter must be a valid [checkpoint mode]:)^
-**
-** <dl>
-** <dt>SQLITE_CHECKPOINT_PASSIVE<dd>
-**   ^Checkpoint as many frames as possible without waiting for any database 
-**   readers or writers to finish, then sync the database file if all frames 
-**   in the log were checkpointed. ^The [busy-handler callback]
-**   is never invoked in the SQLITE_CHECKPOINT_PASSIVE mode.  
-**   ^On the other hand, passive mode might leave the checkpoint unfinished
-**   if there are concurrent readers or writers.
-**
-** <dt>SQLITE_CHECKPOINT_FULL<dd>
-**   ^This mode blocks (it invokes the
-**   [tdsqlite3_busy_handler|busy-handler callback]) until there is no
-**   database writer and all readers are reading from the most recent database
-**   snapshot. ^It then checkpoints all frames in the log file and syncs the
-**   database file. ^This mode blocks new database writers while it is pending,
-**   but new database readers are allowed to continue unimpeded.
-**
-** <dt>SQLITE_CHECKPOINT_RESTART<dd>
-**   ^This mode works the same way as SQLITE_CHECKPOINT_FULL with the addition
-**   that after checkpointing the log file it blocks (calls the 
-**   [busy-handler callback])
-**   until all readers are reading from the database file only. ^This ensures 
-**   that the next writer will restart the log file from the beginning.
-**   ^Like SQLITE_CHECKPOINT_FULL, this mode blocks new
-**   database writer attempts while it is pending, but does not impede readers.
-**
-** <dt>SQLITE_CHECKPOINT_TRUNCATE<dd>
-**   ^This mode works the same way as SQLITE_CHECKPOINT_RESTART with the
-**   addition that it also truncates the log file to zero bytes just prior
-**   to a successful return.
-** </dl>
-**
-** ^If pnLog is not NULL, then *pnLog is set to the total number of frames in
-** the log file or to -1 if the checkpoint could not run because
-** of an error or because the database is not in [WAL mode]. ^If pnCkpt is not
-** NULL,then *pnCkpt is set to the total number of checkpointed frames in the
-** log file (including any that were already checkpointed before the function
-** was called) or to -1 if the checkpoint could not run due to an error or
-** because the database is not in WAL mode. ^Note that upon successful
-** completion of an SQLITE_CHECKPOINT_TRUNCATE, the log file will have been
-** truncated to zero bytes and so both *pnLog and *pnCkpt will be set to zero.
-**
-** ^All calls obtain an exclusive "checkpoint" lock on the database file. ^If
-** any other process is running a checkpoint operation at the same time, the 
-** lock cannot be obtained and SQLITE_BUSY is returned. ^Even if there is a 
-** busy-handler configured, it will not be invoked in this case.
-**
-** ^The SQLITE_CHECKPOINT_FULL, RESTART and TRUNCATE modes also obtain the 
-** exclusive "writer" lock on the database file. ^If the writer lock cannot be
-** obtained immediately, and a busy-handler is configured, it is invoked and
-** the writer lock retried until either the busy-handler returns 0 or the lock
-** is successfully obtained. ^The busy-handler is also invoked while waiting for
-** database readers as described above. ^If the busy-handler returns 0 before
-** the writer lock is obtained or while waiting for database readers, the
-** checkpoint operation proceeds from that point in the same way as 
-** SQLITE_CHECKPOINT_PASSIVE - checkpointing as many frames as possible 
-** without blocking any further. ^SQLITE_BUSY is returned in this case.
-**
-** ^If parameter zDb is NULL or points to a zero length string, then the
-** specified operation is attempted on all WAL databases [attached] to 
-** [database connection] db.  In this case the
-** values written to output parameters *pnLog and *pnCkpt are undefined. ^If 
-** an SQLITE_BUSY error is encountered when processing one or more of the 
-** attached WAL databases, the operation is still attempted on any remaining 
-** attached databases and SQLITE_BUSY is returned at the end. ^If any other 
-** error occurs while processing an attached database, processing is abandoned 
-** and the error code is returned to the caller immediately. ^If no error 
-** (SQLITE_BUSY or otherwise) is encountered while processing the attached 
-** databases, SQLITE_OK is returned.
-**
-** ^If database zDb is the name of an attached database that is not in WAL
-** mode, SQLITE_OK is returned and both *pnLog and *pnCkpt set to -1. ^If
-** zDb is not NULL (or a zero length string) and is not the name of any
-** attached database, SQLITE_ERROR is returned to the caller.
-**
-** ^Unless it returns SQLITE_MISUSE,
-** the tdsqlite3_wal_checkpoint_v2() interface
-** sets the error information that is queried by
-** [tdsqlite3_errcode()] and [tdsqlite3_errmsg()].
-**
-** ^The [PRAGMA wal_checkpoint] command can be used to invoke this interface
-** from SQL.
-*/
-SQLITE_API int tdsqlite3_wal_checkpoint_v2(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Name of attached database (or NULL) */
-  int eMode,                      /* SQLITE_CHECKPOINT_* value */
-  int *pnLog,                     /* OUT: Size of WAL log in frames */
-  int *pnCkpt                     /* OUT: Total number of frames checkpointed */
-);
-
-/*
-** CAPI3REF: Checkpoint Mode Values
-** KEYWORDS: {checkpoint mode}
-**
-** These constants define all valid values for the "checkpoint mode" passed
-** as the third parameter to the [tdsqlite3_wal_checkpoint_v2()] interface.
-** See the [tdsqlite3_wal_checkpoint_v2()] documentation for details on the
-** meaning of each of these checkpoint modes.
-*/
-#define SQLITE_CHECKPOINT_PASSIVE  0  /* Do as much as possible w/o blocking */
-#define SQLITE_CHECKPOINT_FULL     1  /* Wait for writers, then checkpoint */
-#define SQLITE_CHECKPOINT_RESTART  2  /* Like FULL but wait for for readers */
-#define SQLITE_CHECKPOINT_TRUNCATE 3  /* Like RESTART but also truncate WAL */
-
-/*
-** CAPI3REF: Virtual Table Interface Configuration
-**
-** This function may be called by either the [xConnect] or [xCreate] method
-** of a [virtual table] implementation to configure
-** various facets of the virtual table interface.
-**
-** If this interface is invoked outside the context of an xConnect or
-** xCreate virtual table method then the behavior is undefined.
-**
-** In the call tdsqlite3_vtab_config(D,C,...) the D parameter is the
-** [database connection] in which the virtual table is being created and
-** which is passed in as the first argument to the [xConnect] or [xCreate]
-** method that is invoking tdsqlite3_vtab_config().  The C parameter is one
-** of the [virtual table configuration options].  The presence and meaning
-** of parameters after C depend on which [virtual table configuration option]
-** is used.
-*/
-SQLITE_API int tdsqlite3_vtab_config(tdsqlite3*, int op, ...);
-
-/*
-** CAPI3REF: Virtual Table Configuration Options
-** KEYWORDS: {virtual table configuration options} 
-** KEYWORDS: {virtual table configuration option}
-**
-** These macros define the various options to the
-** [tdsqlite3_vtab_config()] interface that [virtual table] implementations
-** can use to customize and optimize their behavior.
-**
-** <dl>
-** [[SQLITE_VTAB_CONSTRAINT_SUPPORT]]
-** <dt>SQLITE_VTAB_CONSTRAINT_SUPPORT</dt>
-** <dd>Calls of the form
-** [tdsqlite3_vtab_config](db,SQLITE_VTAB_CONSTRAINT_SUPPORT,X) are supported,
-** where X is an integer.  If X is zero, then the [virtual table] whose
-** [xCreate] or [xConnect] method invoked [tdsqlite3_vtab_config()] does not
-** support constraints.  In this configuration (which is the default) if
-** a call to the [xUpdate] method returns [SQLITE_CONSTRAINT], then the entire
-** statement is rolled back as if [ON CONFLICT | OR ABORT] had been
-** specified as part of the users SQL statement, regardless of the actual
-** ON CONFLICT mode specified.
-**
-** If X is non-zero, then the virtual table implementation guarantees
-** that if [xUpdate] returns [SQLITE_CONSTRAINT], it will do so before
-** any modifications to internal or persistent data structures have been made.
-** If the [ON CONFLICT] mode is ABORT, FAIL, IGNORE or ROLLBACK, SQLite 
-** is able to roll back a statement or database transaction, and abandon
-** or continue processing the current SQL statement as appropriate. 
-** If the ON CONFLICT mode is REPLACE and the [xUpdate] method returns
-** [SQLITE_CONSTRAINT], SQLite handles this as if the ON CONFLICT mode
-** had been ABORT.
-**
-** Virtual table implementations that are required to handle OR REPLACE
-** must do so within the [xUpdate] method. If a call to the 
-** [tdsqlite3_vtab_on_conflict()] function indicates that the current ON 
-** CONFLICT policy is REPLACE, the virtual table implementation should 
-** silently replace the appropriate rows within the xUpdate callback and
-** return SQLITE_OK. Or, if this is not possible, it may return
-** SQLITE_CONSTRAINT, in which case SQLite falls back to OR ABORT 
-** constraint handling.
-** </dd>
-**
-** [[SQLITE_VTAB_DIRECTONLY]]<dt>SQLITE_VTAB_DIRECTONLY</dt>
-** <dd>Calls of the form
-** [tdsqlite3_vtab_config](db,SQLITE_VTAB_DIRECTONLY) from within the
-** the [xConnect] or [xCreate] methods of a [virtual table] implmentation
-** prohibits that virtual table from being used from within triggers and
-** views.
-** </dd>
-**
-** [[SQLITE_VTAB_INNOCUOUS]]<dt>SQLITE_VTAB_INNOCUOUS</dt>
-** <dd>Calls of the form
-** [tdsqlite3_vtab_config](db,SQLITE_VTAB_INNOCUOUS) from within the
-** the [xConnect] or [xCreate] methods of a [virtual table] implmentation
-** identify that virtual table as being safe to use from within triggers
-** and views.  Conceptually, the SQLITE_VTAB_INNOCUOUS tag means that the
-** virtual table can do no serious harm even if it is controlled by a
-** malicious hacker.  Developers should avoid setting the SQLITE_VTAB_INNOCUOUS
-** flag unless absolutely necessary.
-** </dd>
-** </dl>
-*/
-#define SQLITE_VTAB_CONSTRAINT_SUPPORT 1
-#define SQLITE_VTAB_INNOCUOUS          2
-#define SQLITE_VTAB_DIRECTONLY         3
-
-/*
-** CAPI3REF: Determine The Virtual Table Conflict Policy
-**
-** This function may only be called from within a call to the [xUpdate] method
-** of a [virtual table] implementation for an INSERT or UPDATE operation. ^The
-** value returned is one of [SQLITE_ROLLBACK], [SQLITE_IGNORE], [SQLITE_FAIL],
-** [SQLITE_ABORT], or [SQLITE_REPLACE], according to the [ON CONFLICT] mode
-** of the SQL statement that triggered the call to the [xUpdate] method of the
-** [virtual table].
-*/
-SQLITE_API int tdsqlite3_vtab_on_conflict(tdsqlite3 *);
-
-/*
-** CAPI3REF: Determine If Virtual Table Column Access Is For UPDATE
-**
-** If the tdsqlite3_vtab_nochange(X) routine is called within the [xColumn]
-** method of a [virtual table], then it returns true if and only if the
-** column is being fetched as part of an UPDATE operation during which the
-** column value will not change.  Applications might use this to substitute
-** a return value that is less expensive to compute and that the corresponding
-** [xUpdate] method understands as a "no-change" value.
-**
-** If the [xColumn] method calls tdsqlite3_vtab_nochange() and finds that
-** the column is not changed by the UPDATE statement, then the xColumn
-** method can optionally return without setting a result, without calling
-** any of the [tdsqlite3_result_int|tdsqlite3_result_xxxxx() interfaces].
-** In that case, [tdsqlite3_value_nochange(X)] will return true for the
-** same column in the [xUpdate] method.
-*/
-SQLITE_API int tdsqlite3_vtab_nochange(tdsqlite3_context*);
-
-/*
-** CAPI3REF: Determine The Collation For a Virtual Table Constraint
-**
-** This function may only be called from within a call to the [xBestIndex]
-** method of a [virtual table]. 
-**
-** The first argument must be the tdsqlite3_index_info object that is the
-** first parameter to the xBestIndex() method. The second argument must be
-** an index into the aConstraint[] array belonging to the tdsqlite3_index_info
-** structure passed to xBestIndex. This function returns a pointer to a buffer 
-** containing the name of the collation sequence for the corresponding
-** constraint.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL const char *tdsqlite3_vtab_collation(tdsqlite3_index_info*,int);
-
-/*
-** CAPI3REF: Conflict resolution modes
-** KEYWORDS: {conflict resolution mode}
-**
-** These constants are returned by [tdsqlite3_vtab_on_conflict()] to
-** inform a [virtual table] implementation what the [ON CONFLICT] mode
-** is for the SQL statement being evaluated.
-**
-** Note that the [SQLITE_IGNORE] constant is also used as a potential
-** return value from the [tdsqlite3_set_authorizer()] callback and that
-** [SQLITE_ABORT] is also a [result code].
-*/
-#define SQLITE_ROLLBACK 1
-/* #define SQLITE_IGNORE 2 // Also used by tdsqlite3_authorizer() callback */
-#define SQLITE_FAIL     3
-/* #define SQLITE_ABORT 4  // Also an error code */
-#define SQLITE_REPLACE  5
-
-/*
-** CAPI3REF: Prepared Statement Scan Status Opcodes
-** KEYWORDS: {scanstatus options}
-**
-** The following constants can be used for the T parameter to the
-** [tdsqlite3_stmt_scanstatus(S,X,T,V)] interface.  Each constant designates a
-** different metric for tdsqlite3_stmt_scanstatus() to return.
-**
-** When the value returned to V is a string, space to hold that string is
-** managed by the prepared statement S and will be automatically freed when
-** S is finalized.
-**
-** <dl>
-** [[SQLITE_SCANSTAT_NLOOP]] <dt>SQLITE_SCANSTAT_NLOOP</dt>
-** <dd>^The [tdsqlite3_int64] variable pointed to by the V parameter will be
-** set to the total number of times that the X-th loop has run.</dd>
-**
-** [[SQLITE_SCANSTAT_NVISIT]] <dt>SQLITE_SCANSTAT_NVISIT</dt>
-** <dd>^The [tdsqlite3_int64] variable pointed to by the V parameter will be set
-** to the total number of rows examined by all iterations of the X-th loop.</dd>
-**
-** [[SQLITE_SCANSTAT_EST]] <dt>SQLITE_SCANSTAT_EST</dt>
-** <dd>^The "double" variable pointed to by the V parameter will be set to the
-** query planner's estimate for the average number of rows output from each
-** iteration of the X-th loop.  If the query planner's estimates was accurate,
-** then this value will approximate the quotient NVISIT/NLOOP and the
-** product of this value for all prior loops with the same SELECTID will
-** be the NLOOP value for the current loop.
-**
-** [[SQLITE_SCANSTAT_NAME]] <dt>SQLITE_SCANSTAT_NAME</dt>
-** <dd>^The "const char *" variable pointed to by the V parameter will be set
-** to a zero-terminated UTF-8 string containing the name of the index or table
-** used for the X-th loop.
-**
-** [[SQLITE_SCANSTAT_EXPLAIN]] <dt>SQLITE_SCANSTAT_EXPLAIN</dt>
-** <dd>^The "const char *" variable pointed to by the V parameter will be set
-** to a zero-terminated UTF-8 string containing the [EXPLAIN QUERY PLAN]
-** description for the X-th loop.
-**
-** [[SQLITE_SCANSTAT_SELECTID]] <dt>SQLITE_SCANSTAT_SELECT</dt>
-** <dd>^The "int" variable pointed to by the V parameter will be set to the
-** "select-id" for the X-th loop.  The select-id identifies which query or
-** subquery the loop is part of.  The main query has a select-id of zero.
-** The select-id is the same value as is output in the first column
-** of an [EXPLAIN QUERY PLAN] query.
-** </dl>
-*/
-#define SQLITE_SCANSTAT_NLOOP    0
-#define SQLITE_SCANSTAT_NVISIT   1
-#define SQLITE_SCANSTAT_EST      2
-#define SQLITE_SCANSTAT_NAME     3
-#define SQLITE_SCANSTAT_EXPLAIN  4
-#define SQLITE_SCANSTAT_SELECTID 5
-
-/*
-** CAPI3REF: Prepared Statement Scan Status
-** METHOD: tdsqlite3_stmt
-**
-** This interface returns information about the predicted and measured
-** performance for pStmt.  Advanced applications can use this
-** interface to compare the predicted and the measured performance and
-** issue warnings and/or rerun [ANALYZE] if discrepancies are found.
-**
-** Since this interface is expected to be rarely used, it is only
-** available if SQLite is compiled using the [SQLITE_ENABLE_STMT_SCANSTATUS]
-** compile-time option.
-**
-** The "iScanStatusOp" parameter determines which status information to return.
-** The "iScanStatusOp" must be one of the [scanstatus options] or the behavior
-** of this interface is undefined.
-** ^The requested measurement is written into a variable pointed to by
-** the "pOut" parameter.
-** Parameter "idx" identifies the specific loop to retrieve statistics for.
-** Loops are numbered starting from zero. ^If idx is out of range - less than
-** zero or greater than or equal to the total number of loops used to implement
-** the statement - a non-zero value is returned and the variable that pOut
-** points to is unchanged.
-**
-** ^Statistics might not be available for all loops in all statements. ^In cases
-** where there exist loops with no available statistics, this function behaves
-** as if the loop did not exist - it returns non-zero and leave the variable
-** that pOut points to unchanged.
-**
-** See also: [tdsqlite3_stmt_scanstatus_reset()]
-*/
-SQLITE_API int tdsqlite3_stmt_scanstatus(
-  tdsqlite3_stmt *pStmt,      /* Prepared statement for which info desired */
-  int idx,                  /* Index of loop to report on */
-  int iScanStatusOp,        /* Information desired.  SQLITE_SCANSTAT_* */
-  void *pOut                /* Result written here */
-);     
-
-/*
-** CAPI3REF: Zero Scan-Status Counters
-** METHOD: tdsqlite3_stmt
-**
-** ^Zero all [tdsqlite3_stmt_scanstatus()] related event counters.
-**
-** This API is only available if the library is built with pre-processor
-** symbol [SQLITE_ENABLE_STMT_SCANSTATUS] defined.
-*/
-SQLITE_API void tdsqlite3_stmt_scanstatus_reset(tdsqlite3_stmt*);
-
-/*
-** CAPI3REF: Flush caches to disk mid-transaction
-**
-** ^If a write-transaction is open on [database connection] D when the
-** [tdsqlite3_db_cacheflush(D)] interface invoked, any dirty
-** pages in the pager-cache that are not currently in use are written out 
-** to disk. A dirty page may be in use if a database cursor created by an
-** active SQL statement is reading from it, or if it is page 1 of a database
-** file (page 1 is always "in use").  ^The [tdsqlite3_db_cacheflush(D)]
-** interface flushes caches for all schemas - "main", "temp", and
-** any [attached] databases.
-**
-** ^If this function needs to obtain extra database locks before dirty pages 
-** can be flushed to disk, it does so. ^If those locks cannot be obtained 
-** immediately and there is a busy-handler callback configured, it is invoked
-** in the usual manner. ^If the required lock still cannot be obtained, then
-** the database is skipped and an attempt made to flush any dirty pages
-** belonging to the next (if any) database. ^If any databases are skipped
-** because locks cannot be obtained, but no other error occurs, this
-** function returns SQLITE_BUSY.
-**
-** ^If any other error occurs while flushing dirty pages to disk (for
-** example an IO error or out-of-memory condition), then processing is
-** abandoned and an SQLite [error code] is returned to the caller immediately.
-**
-** ^Otherwise, if no error occurs, [tdsqlite3_db_cacheflush()] returns SQLITE_OK.
-**
-** ^This function does not set the database handle error code or message
-** returned by the [tdsqlite3_errcode()] and [tdsqlite3_errmsg()] functions.
-*/
-SQLITE_API int tdsqlite3_db_cacheflush(tdsqlite3*);
-
-/*
-** CAPI3REF: The pre-update hook.
-**
-** ^These interfaces are only available if SQLite is compiled using the
-** [SQLITE_ENABLE_PREUPDATE_HOOK] compile-time option.
-**
-** ^The [tdsqlite3_preupdate_hook()] interface registers a callback function
-** that is invoked prior to each [INSERT], [UPDATE], and [DELETE] operation
-** on a database table.
-** ^At most one preupdate hook may be registered at a time on a single
-** [database connection]; each call to [tdsqlite3_preupdate_hook()] overrides
-** the previous setting.
-** ^The preupdate hook is disabled by invoking [tdsqlite3_preupdate_hook()]
-** with a NULL pointer as the second parameter.
-** ^The third parameter to [tdsqlite3_preupdate_hook()] is passed through as
-** the first parameter to callbacks.
-**
-** ^The preupdate hook only fires for changes to real database tables; the
-** preupdate hook is not invoked for changes to [virtual tables] or to
-** system tables like sqlite_master or sqlite_stat1.
-**
-** ^The second parameter to the preupdate callback is a pointer to
-** the [database connection] that registered the preupdate hook.
-** ^The third parameter to the preupdate callback is one of the constants
-** [SQLITE_INSERT], [SQLITE_DELETE], or [SQLITE_UPDATE] to identify the
-** kind of update operation that is about to occur.
-** ^(The fourth parameter to the preupdate callback is the name of the
-** database within the database connection that is being modified.  This
-** will be "main" for the main database or "temp" for TEMP tables or 
-** the name given after the AS keyword in the [ATTACH] statement for attached
-** databases.)^
-** ^The fifth parameter to the preupdate callback is the name of the
-** table that is being modified.
-**
-** For an UPDATE or DELETE operation on a [rowid table], the sixth
-** parameter passed to the preupdate callback is the initial [rowid] of the 
-** row being modified or deleted. For an INSERT operation on a rowid table,
-** or any operation on a WITHOUT ROWID table, the value of the sixth 
-** parameter is undefined. For an INSERT or UPDATE on a rowid table the
-** seventh parameter is the final rowid value of the row being inserted
-** or updated. The value of the seventh parameter passed to the callback
-** function is not defined for operations on WITHOUT ROWID tables, or for
-** INSERT operations on rowid tables.
-**
-** The [tdsqlite3_preupdate_old()], [tdsqlite3_preupdate_new()],
-** [tdsqlite3_preupdate_count()], and [tdsqlite3_preupdate_depth()] interfaces
-** provide additional information about a preupdate event. These routines
-** may only be called from within a preupdate callback.  Invoking any of
-** these routines from outside of a preupdate callback or with a
-** [database connection] pointer that is different from the one supplied
-** to the preupdate callback results in undefined and probably undesirable
-** behavior.
-**
-** ^The [tdsqlite3_preupdate_count(D)] interface returns the number of columns
-** in the row that is being inserted, updated, or deleted.
-**
-** ^The [tdsqlite3_preupdate_old(D,N,P)] interface writes into P a pointer to
-** a [protected tdsqlite3_value] that contains the value of the Nth column of
-** the table row before it is updated.  The N parameter must be between 0
-** and one less than the number of columns or the behavior will be
-** undefined. This must only be used within SQLITE_UPDATE and SQLITE_DELETE
-** preupdate callbacks; if it is used by an SQLITE_INSERT callback then the
-** behavior is undefined.  The [tdsqlite3_value] that P points to
-** will be destroyed when the preupdate callback returns.
-**
-** ^The [tdsqlite3_preupdate_new(D,N,P)] interface writes into P a pointer to
-** a [protected tdsqlite3_value] that contains the value of the Nth column of
-** the table row after it is updated.  The N parameter must be between 0
-** and one less than the number of columns or the behavior will be
-** undefined. This must only be used within SQLITE_INSERT and SQLITE_UPDATE
-** preupdate callbacks; if it is used by an SQLITE_DELETE callback then the
-** behavior is undefined.  The [tdsqlite3_value] that P points to
-** will be destroyed when the preupdate callback returns.
-**
-** ^The [tdsqlite3_preupdate_depth(D)] interface returns 0 if the preupdate
-** callback was invoked as a result of a direct insert, update, or delete
-** operation; or 1 for inserts, updates, or deletes invoked by top-level 
-** triggers; or 2 for changes resulting from triggers called by top-level
-** triggers; and so forth.
-**
-** See also:  [tdsqlite3_update_hook()]
-*/
-#if defined(SQLITE_ENABLE_PREUPDATE_HOOK)
-SQLITE_API void *tdsqlite3_preupdate_hook(
-  tdsqlite3 *db,
-  void(*xPreUpdate)(
-    void *pCtx,                   /* Copy of third arg to preupdate_hook() */
-    tdsqlite3 *db,                  /* Database handle */
-    int op,                       /* SQLITE_UPDATE, DELETE or INSERT */
-    char const *zDb,              /* Database name */
-    char const *zName,            /* Table name */
-    tdsqlite3_int64 iKey1,          /* Rowid of row about to be deleted/updated */
-    tdsqlite3_int64 iKey2           /* New rowid value (for a rowid UPDATE) */
-  ),
-  void*
-);
-SQLITE_API int tdsqlite3_preupdate_old(tdsqlite3 *, int, tdsqlite3_value **);
-SQLITE_API int tdsqlite3_preupdate_count(tdsqlite3 *);
-SQLITE_API int tdsqlite3_preupdate_depth(tdsqlite3 *);
-SQLITE_API int tdsqlite3_preupdate_new(tdsqlite3 *, int, tdsqlite3_value **);
-#endif
-
-/*
-** CAPI3REF: Low-level system error code
-**
-** ^Attempt to return the underlying operating system error code or error
-** number that caused the most recent I/O error or failure to open a file.
-** The return value is OS-dependent.  For example, on unix systems, after
-** [tdsqlite3_open_v2()] returns [SQLITE_CANTOPEN], this interface could be
-** called to get back the underlying "errno" that caused the problem, such
-** as ENOSPC, EAUTH, EISDIR, and so forth.  
-*/
-SQLITE_API int tdsqlite3_system_errno(tdsqlite3*);
-
-/*
-** CAPI3REF: Database Snapshot
-** KEYWORDS: {snapshot} {tdsqlite3_snapshot}
-**
-** An instance of the snapshot object records the state of a [WAL mode]
-** database for some specific point in history.
-**
-** In [WAL mode], multiple [database connections] that are open on the
-** same database file can each be reading a different historical version
-** of the database file.  When a [database connection] begins a read
-** transaction, that connection sees an unchanging copy of the database
-** as it existed for the point in time when the transaction first started.
-** Subsequent changes to the database from other connections are not seen
-** by the reader until a new read transaction is started.
-**
-** The tdsqlite3_snapshot object records state information about an historical
-** version of the database file so that it is possible to later open a new read
-** transaction that sees that historical version of the database rather than
-** the most recent version.
-*/
-typedef struct tdsqlite3_snapshot {
-  unsigned char hidden[48];
-} tdsqlite3_snapshot;
-
-/*
-** CAPI3REF: Record A Database Snapshot
-** CONSTRUCTOR: tdsqlite3_snapshot
-**
-** ^The [tdsqlite3_snapshot_get(D,S,P)] interface attempts to make a
-** new [tdsqlite3_snapshot] object that records the current state of
-** schema S in database connection D.  ^On success, the
-** [tdsqlite3_snapshot_get(D,S,P)] interface writes a pointer to the newly
-** created [tdsqlite3_snapshot] object into *P and returns SQLITE_OK.
-** If there is not already a read-transaction open on schema S when
-** this function is called, one is opened automatically. 
-**
-** The following must be true for this function to succeed. If any of
-** the following statements are false when tdsqlite3_snapshot_get() is
-** called, SQLITE_ERROR is returned. The final value of *P is undefined
-** in this case. 
-**
-** <ul>
-**   <li> The database handle must not be in [autocommit mode].
-**
-**   <li> Schema S of [database connection] D must be a [WAL mode] database.
-**
-**   <li> There must not be a write transaction open on schema S of database
-**        connection D.
-**
-**   <li> One or more transactions must have been written to the current wal
-**        file since it was created on disk (by any connection). This means
-**        that a snapshot cannot be taken on a wal mode database with no wal 
-**        file immediately after it is first opened. At least one transaction
-**        must be written to it first.
-** </ul>
-**
-** This function may also return SQLITE_NOMEM.  If it is called with the
-** database handle in autocommit mode but fails for some other reason, 
-** whether or not a read transaction is opened on schema S is undefined.
-**
-** The [tdsqlite3_snapshot] object returned from a successful call to
-** [tdsqlite3_snapshot_get()] must be freed using [tdsqlite3_snapshot_free()]
-** to avoid a memory leak.
-**
-** The [tdsqlite3_snapshot_get()] interface is only available when the
-** [SQLITE_ENABLE_SNAPSHOT] compile-time option is used.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL int tdsqlite3_snapshot_get(
-  tdsqlite3 *db,
-  const char *zSchema,
-  tdsqlite3_snapshot **ppSnapshot
-);
-
-/*
-** CAPI3REF: Start a read transaction on an historical snapshot
-** METHOD: tdsqlite3_snapshot
-**
-** ^The [tdsqlite3_snapshot_open(D,S,P)] interface either starts a new read 
-** transaction or upgrades an existing one for schema S of 
-** [database connection] D such that the read transaction refers to 
-** historical [snapshot] P, rather than the most recent change to the 
-** database. ^The [tdsqlite3_snapshot_open()] interface returns SQLITE_OK 
-** on success or an appropriate [error code] if it fails.
-**
-** ^In order to succeed, the database connection must not be in 
-** [autocommit mode] when [tdsqlite3_snapshot_open(D,S,P)] is called. If there
-** is already a read transaction open on schema S, then the database handle
-** must have no active statements (SELECT statements that have been passed
-** to tdsqlite3_step() but not tdsqlite3_reset() or tdsqlite3_finalize()). 
-** SQLITE_ERROR is returned if either of these conditions is violated, or
-** if schema S does not exist, or if the snapshot object is invalid.
-**
-** ^A call to tdsqlite3_snapshot_open() will fail to open if the specified
-** snapshot has been overwritten by a [checkpoint]. In this case 
-** SQLITE_ERROR_SNAPSHOT is returned.
-**
-** If there is already a read transaction open when this function is 
-** invoked, then the same read transaction remains open (on the same
-** database snapshot) if SQLITE_ERROR, SQLITE_BUSY or SQLITE_ERROR_SNAPSHOT
-** is returned. If another error code - for example SQLITE_PROTOCOL or an
-** SQLITE_IOERR error code - is returned, then the final state of the
-** read transaction is undefined. If SQLITE_OK is returned, then the 
-** read transaction is now open on database snapshot P.
-**
-** ^(A call to [tdsqlite3_snapshot_open(D,S,P)] will fail if the
-** database connection D does not know that the database file for
-** schema S is in [WAL mode].  A database connection might not know
-** that the database file is in [WAL mode] if there has been no prior
-** I/O on that database connection, or if the database entered [WAL mode] 
-** after the most recent I/O on the database connection.)^
-** (Hint: Run "[PRAGMA application_id]" against a newly opened
-** database connection in order to make it ready to use snapshots.)
-**
-** The [tdsqlite3_snapshot_open()] interface is only available when the
-** [SQLITE_ENABLE_SNAPSHOT] compile-time option is used.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL int tdsqlite3_snapshot_open(
-  tdsqlite3 *db,
-  const char *zSchema,
-  tdsqlite3_snapshot *pSnapshot
-);
-
-/*
-** CAPI3REF: Destroy a snapshot
-** DESTRUCTOR: tdsqlite3_snapshot
-**
-** ^The [tdsqlite3_snapshot_free(P)] interface destroys [tdsqlite3_snapshot] P.
-** The application must eventually free every [tdsqlite3_snapshot] object
-** using this routine to avoid a memory leak.
-**
-** The [tdsqlite3_snapshot_free()] interface is only available when the
-** [SQLITE_ENABLE_SNAPSHOT] compile-time option is used.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL void tdsqlite3_snapshot_free(tdsqlite3_snapshot*);
-
-/*
-** CAPI3REF: Compare the ages of two snapshot handles.
-** METHOD: tdsqlite3_snapshot
-**
-** The tdsqlite3_snapshot_cmp(P1, P2) interface is used to compare the ages
-** of two valid snapshot handles. 
-**
-** If the two snapshot handles are not associated with the same database 
-** file, the result of the comparison is undefined. 
-**
-** Additionally, the result of the comparison is only valid if both of the
-** snapshot handles were obtained by calling tdsqlite3_snapshot_get() since the
-** last time the wal file was deleted. The wal file is deleted when the
-** database is changed back to rollback mode or when the number of database
-** clients drops to zero. If either snapshot handle was obtained before the 
-** wal file was last deleted, the value returned by this function 
-** is undefined.
-**
-** Otherwise, this API returns a negative value if P1 refers to an older
-** snapshot than P2, zero if the two handles refer to the same database
-** snapshot, and a positive value if P1 is a newer snapshot than P2.
-**
-** This interface is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_SNAPSHOT] option.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL int tdsqlite3_snapshot_cmp(
-  tdsqlite3_snapshot *p1,
-  tdsqlite3_snapshot *p2
-);
-
-/*
-** CAPI3REF: Recover snapshots from a wal file
-** METHOD: tdsqlite3_snapshot
-**
-** If a [WAL file] remains on disk after all database connections close
-** (either through the use of the [SQLITE_FCNTL_PERSIST_WAL] [file control]
-** or because the last process to have the database opened exited without
-** calling [tdsqlite3_close()]) and a new connection is subsequently opened
-** on that database and [WAL file], the [tdsqlite3_snapshot_open()] interface
-** will only be able to open the last transaction added to the WAL file
-** even though the WAL file contains other valid transactions.
-**
-** This function attempts to scan the WAL file associated with database zDb
-** of database handle db and make all valid snapshots available to
-** tdsqlite3_snapshot_open(). It is an error if there is already a read
-** transaction open on the database, or if the database is not a WAL mode
-** database.
-**
-** SQLITE_OK is returned if successful, or an SQLite error code otherwise.
-**
-** This interface is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_SNAPSHOT] option.
-*/
-SQLITE_API SQLITE_EXPERIMENTAL int tdsqlite3_snapshot_recover(tdsqlite3 *db, const char *zDb);
-
-/*
-** CAPI3REF: Serialize a database
-**
-** The tdsqlite3_serialize(D,S,P,F) interface returns a pointer to memory
-** that is a serialization of the S database on [database connection] D.
-** If P is not a NULL pointer, then the size of the database in bytes
-** is written into *P.
-**
-** For an ordinary on-disk database file, the serialization is just a
-** copy of the disk file.  For an in-memory database or a "TEMP" database,
-** the serialization is the same sequence of bytes which would be written
-** to disk if that database where backed up to disk.
-**
-** The usual case is that tdsqlite3_serialize() copies the serialization of
-** the database into memory obtained from [tdsqlite3_malloc64()] and returns
-** a pointer to that memory.  The caller is responsible for freeing the
-** returned value to avoid a memory leak.  However, if the F argument
-** contains the SQLITE_SERIALIZE_NOCOPY bit, then no memory allocations
-** are made, and the tdsqlite3_serialize() function will return a pointer
-** to the contiguous memory representation of the database that SQLite
-** is currently using for that database, or NULL if the no such contiguous
-** memory representation of the database exists.  A contiguous memory
-** representation of the database will usually only exist if there has
-** been a prior call to [tdsqlite3_deserialize(D,S,...)] with the same
-** values of D and S.
-** The size of the database is written into *P even if the 
-** SQLITE_SERIALIZE_NOCOPY bit is set but no contiguous copy
-** of the database exists.
-**
-** A call to tdsqlite3_serialize(D,S,P,F) might return NULL even if the
-** SQLITE_SERIALIZE_NOCOPY bit is omitted from argument F if a memory
-** allocation error occurs.
-**
-** This interface is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_DESERIALIZE] option.
-*/
-SQLITE_API unsigned char *tdsqlite3_serialize(
-  tdsqlite3 *db,           /* The database connection */
-  const char *zSchema,   /* Which DB to serialize. ex: "main", "temp", ... */
-  tdsqlite3_int64 *piSize, /* Write size of the DB here, if not NULL */
-  unsigned int mFlags    /* Zero or more SQLITE_SERIALIZE_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3_serialize
-**
-** Zero or more of the following constants can be OR-ed together for
-** the F argument to [tdsqlite3_serialize(D,S,P,F)].
-**
-** SQLITE_SERIALIZE_NOCOPY means that [tdsqlite3_serialize()] will return
-** a pointer to contiguous in-memory database that it is currently using,
-** without making a copy of the database.  If SQLite is not currently using
-** a contiguous in-memory database, then this option causes
-** [tdsqlite3_serialize()] to return a NULL pointer.  SQLite will only be
-** using a contiguous in-memory database if it has been initialized by a
-** prior call to [tdsqlite3_deserialize()].
-*/
-#define SQLITE_SERIALIZE_NOCOPY 0x001   /* Do no memory allocations */
-
-/*
-** CAPI3REF: Deserialize a database
-**
-** The tdsqlite3_deserialize(D,S,P,N,M,F) interface causes the 
-** [database connection] D to disconnect from database S and then
-** reopen S as an in-memory database based on the serialization contained
-** in P.  The serialized database P is N bytes in size.  M is the size of
-** the buffer P, which might be larger than N.  If M is larger than N, and
-** the SQLITE_DESERIALIZE_READONLY bit is not set in F, then SQLite is
-** permitted to add content to the in-memory database as long as the total
-** size does not exceed M bytes.
-**
-** If the SQLITE_DESERIALIZE_FREEONCLOSE bit is set in F, then SQLite will
-** invoke tdsqlite3_free() on the serialization buffer when the database
-** connection closes.  If the SQLITE_DESERIALIZE_RESIZEABLE bit is set, then
-** SQLite will try to increase the buffer size using tdsqlite3_realloc64()
-** if writes on the database cause it to grow larger than M bytes.
-**
-** The tdsqlite3_deserialize() interface will fail with SQLITE_BUSY if the
-** database is currently in a read transaction or is involved in a backup
-** operation.
-**
-** If tdsqlite3_deserialize(D,S,P,N,M,F) fails for any reason and if the 
-** SQLITE_DESERIALIZE_FREEONCLOSE bit is set in argument F, then
-** [tdsqlite3_free()] is invoked on argument P prior to returning.
-**
-** This interface is only available if SQLite is compiled with the
-** [SQLITE_ENABLE_DESERIALIZE] option.
-*/
-SQLITE_API int tdsqlite3_deserialize(
-  tdsqlite3 *db,            /* The database connection */
-  const char *zSchema,    /* Which DB to reopen with the deserialization */
-  unsigned char *pData,   /* The serialized database content */
-  tdsqlite3_int64 szDb,     /* Number bytes in the deserialization */
-  tdsqlite3_int64 szBuf,    /* Total size of buffer pData[] */
-  unsigned mFlags         /* Zero or more SQLITE_DESERIALIZE_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3_deserialize()
-**
-** The following are allowed values for 6th argument (the F argument) to
-** the [tdsqlite3_deserialize(D,S,P,N,M,F)] interface.
-**
-** The SQLITE_DESERIALIZE_FREEONCLOSE means that the database serialization
-** in the P argument is held in memory obtained from [tdsqlite3_malloc64()]
-** and that SQLite should take ownership of this memory and automatically
-** free it when it has finished using it.  Without this flag, the caller
-** is responsible for freeing any dynamically allocated memory.
-**
-** The SQLITE_DESERIALIZE_RESIZEABLE flag means that SQLite is allowed to
-** grow the size of the database using calls to [tdsqlite3_realloc64()].  This
-** flag should only be used if SQLITE_DESERIALIZE_FREEONCLOSE is also used.
-** Without this flag, the deserialized database cannot increase in size beyond
-** the number of bytes specified by the M parameter.
-**
-** The SQLITE_DESERIALIZE_READONLY flag means that the deserialized database
-** should be treated as read-only.
-*/
-#define SQLITE_DESERIALIZE_FREEONCLOSE 1 /* Call tdsqlite3_free() on close */
-#define SQLITE_DESERIALIZE_RESIZEABLE  2 /* Resize using tdsqlite3_realloc64() */
-#define SQLITE_DESERIALIZE_READONLY    4 /* Database is read-only */
-
-/*
-** Undo the hack that converts floating point types to integer for
-** builds on processors without floating point support.
-*/
-#ifdef SQLITE_OMIT_FLOATING_POINT
-# undef double
-#endif
-
-#ifdef __cplusplus
-}  /* End of the 'extern "C"' block */
-#endif
-#endif /* SQLITE3_H */
-
-/******** Begin file tdsqlite3rtree.h *********/
-/*
-** 2010 August 30
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-*/
-
-#ifndef _SQLITE3RTREE_H_
-#define _SQLITE3RTREE_H_
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct tdsqlite3_rtree_geometry tdsqlite3_rtree_geometry;
-typedef struct tdsqlite3_rtree_query_info tdsqlite3_rtree_query_info;
-
-/* The double-precision datatype used by RTree depends on the
-** SQLITE_RTREE_INT_ONLY compile-time option.
-*/
-#ifdef SQLITE_RTREE_INT_ONLY
-  typedef tdsqlite3_int64 tdsqlite3_rtree_dbl;
-#else
-  typedef double tdsqlite3_rtree_dbl;
-#endif
-
-/*
-** Register a geometry callback named zGeom that can be used as part of an
-** R-Tree geometry query as follows:
-**
-**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...)
-*/
-SQLITE_API int tdsqlite3_rtree_geometry_callback(
-  tdsqlite3 *db,
-  const char *zGeom,
-  int (*xGeom)(tdsqlite3_rtree_geometry*, int, tdsqlite3_rtree_dbl*,int*),
-  void *pContext
-);
-
-
-/*
-** A pointer to a structure of the following type is passed as the first
-** argument to callbacks registered using rtree_geometry_callback().
-*/
-struct tdsqlite3_rtree_geometry {
-  void *pContext;                 /* Copy of pContext passed to s_r_g_c() */
-  int nParam;                     /* Size of array aParam[] */
-  tdsqlite3_rtree_dbl *aParam;      /* Parameters passed to SQL geom function */
-  void *pUser;                    /* Callback implementation user data */
-  void (*xDelUser)(void *);       /* Called by SQLite to clean up pUser */
-};
-
-/*
-** Register a 2nd-generation geometry callback named zScore that can be 
-** used as part of an R-Tree geometry query as follows:
-**
-**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zQueryFunc(... params ...)
-*/
-SQLITE_API int tdsqlite3_rtree_query_callback(
-  tdsqlite3 *db,
-  const char *zQueryFunc,
-  int (*xQueryFunc)(tdsqlite3_rtree_query_info*),
-  void *pContext,
-  void (*xDestructor)(void*)
-);
-
-
-/*
-** A pointer to a structure of the following type is passed as the 
-** argument to scored geometry callback registered using
-** tdsqlite3_rtree_query_callback().
-**
-** Note that the first 5 fields of this structure are identical to
-** tdsqlite3_rtree_geometry.  This structure is a subclass of
-** tdsqlite3_rtree_geometry.
-*/
-struct tdsqlite3_rtree_query_info {
-  void *pContext;                   /* pContext from when function registered */
-  int nParam;                       /* Number of function parameters */
-  tdsqlite3_rtree_dbl *aParam;        /* value of function parameters */
-  void *pUser;                      /* callback can use this, if desired */
-  void (*xDelUser)(void*);          /* function to free pUser */
-  tdsqlite3_rtree_dbl *aCoord;        /* Coordinates of node or entry to check */
-  unsigned int *anQueue;            /* Number of pending entries in the queue */
-  int nCoord;                       /* Number of coordinates */
-  int iLevel;                       /* Level of current node or entry */
-  int mxLevel;                      /* The largest iLevel value in the tree */
-  tdsqlite3_int64 iRowid;             /* Rowid for current entry */
-  tdsqlite3_rtree_dbl rParentScore;   /* Score of parent node */
-  int eParentWithin;                /* Visibility of parent node */
-  int eWithin;                      /* OUT: Visibility */
-  tdsqlite3_rtree_dbl rScore;         /* OUT: Write the score here */
-  /* The following fields are only available in 3.8.11 and later */
-  tdsqlite3_value **apSqlParam;       /* Original SQL values of parameters */
-};
-
-/*
-** Allowed values for tdsqlite3_rtree_query.eWithin and .eParentWithin.
-*/
-#define NOT_WITHIN       0   /* Object completely outside of query region */
-#define PARTLY_WITHIN    1   /* Object partially overlaps query region */
-#define FULLY_WITHIN     2   /* Object fully contained within query region */
-
-
-#ifdef __cplusplus
-}  /* end of the 'extern "C"' block */
-#endif
-
-#endif  /* ifndef _SQLITE3RTREE_H_ */
-
-/******** End of tdsqlite3rtree.h *********/
-/******** Begin file tdsqlite3session.h *********/
-
-#if !defined(__SQLITESESSION_H_) && defined(SQLITE_ENABLE_SESSION)
-#define __SQLITESESSION_H_ 1
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/*
-** CAPI3REF: Session Object Handle
-**
-** An instance of this object is a [session] that can be used to
-** record changes to a database.
-*/
-typedef struct tdsqlite3_session tdsqlite3_session;
-
-/*
-** CAPI3REF: Changeset Iterator Handle
-**
-** An instance of this object acts as a cursor for iterating
-** over the elements of a [changeset] or [patchset].
-*/
-typedef struct tdsqlite3_changeset_iter tdsqlite3_changeset_iter;
-
-/*
-** CAPI3REF: Create A New Session Object
-** CONSTRUCTOR: tdsqlite3_session
-**
-** Create a new session object attached to database handle db. If successful,
-** a pointer to the new object is written to *ppSession and SQLITE_OK is
-** returned. If an error occurs, *ppSession is set to NULL and an SQLite
-** error code (e.g. SQLITE_NOMEM) is returned.
-**
-** It is possible to create multiple session objects attached to a single
-** database handle.
-**
-** Session objects created using this function should be deleted using the
-** [tdsqlite3session_delete()] function before the database handle that they
-** are attached to is itself closed. If the database handle is closed before
-** the session object is deleted, then the results of calling any session
-** module function, including [tdsqlite3session_delete()] on the session object
-** are undefined.
-**
-** Because the session module uses the [tdsqlite3_preupdate_hook()] API, it
-** is not possible for an application to register a pre-update hook on a
-** database handle that has one or more session objects attached. Nor is
-** it possible to create a session object attached to a database handle for
-** which a pre-update hook is already defined. The results of attempting 
-** either of these things are undefined.
-**
-** The session object will be used to create changesets for tables in
-** database zDb, where zDb is either "main", or "temp", or the name of an
-** attached database. It is not an error if database zDb is not attached
-** to the database when the session object is created.
-*/
-SQLITE_API int tdsqlite3session_create(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Name of db (e.g. "main") */
-  tdsqlite3_session **ppSession     /* OUT: New session object */
-);
-
-/*
-** CAPI3REF: Delete A Session Object
-** DESTRUCTOR: tdsqlite3_session
-**
-** Delete a session object previously allocated using 
-** [tdsqlite3session_create()]. Once a session object has been deleted, the
-** results of attempting to use pSession with any other session module
-** function are undefined.
-**
-** Session objects must be deleted before the database handle to which they
-** are attached is closed. Refer to the documentation for 
-** [tdsqlite3session_create()] for details.
-*/
-SQLITE_API void tdsqlite3session_delete(tdsqlite3_session *pSession);
-
-
-/*
-** CAPI3REF: Enable Or Disable A Session Object
-** METHOD: tdsqlite3_session
-**
-** Enable or disable the recording of changes by a session object. When
-** enabled, a session object records changes made to the database. When
-** disabled - it does not. A newly created session object is enabled.
-** Refer to the documentation for [tdsqlite3session_changeset()] for further
-** details regarding how enabling and disabling a session object affects
-** the eventual changesets.
-**
-** Passing zero to this function disables the session. Passing a value
-** greater than zero enables it. Passing a value less than zero is a 
-** no-op, and may be used to query the current state of the session.
-**
-** The return value indicates the final state of the session object: 0 if 
-** the session is disabled, or 1 if it is enabled.
-*/
-SQLITE_API int tdsqlite3session_enable(tdsqlite3_session *pSession, int bEnable);
-
-/*
-** CAPI3REF: Set Or Clear the Indirect Change Flag
-** METHOD: tdsqlite3_session
-**
-** Each change recorded by a session object is marked as either direct or
-** indirect. A change is marked as indirect if either:
-**
-** <ul>
-**   <li> The session object "indirect" flag is set when the change is
-**        made, or
-**   <li> The change is made by an SQL trigger or foreign key action 
-**        instead of directly as a result of a users SQL statement.
-** </ul>
-**
-** If a single row is affected by more than one operation within a session,
-** then the change is considered indirect if all operations meet the criteria
-** for an indirect change above, or direct otherwise.
-**
-** This function is used to set, clear or query the session object indirect
-** flag.  If the second argument passed to this function is zero, then the
-** indirect flag is cleared. If it is greater than zero, the indirect flag
-** is set. Passing a value less than zero does not modify the current value
-** of the indirect flag, and may be used to query the current state of the 
-** indirect flag for the specified session object.
-**
-** The return value indicates the final state of the indirect flag: 0 if 
-** it is clear, or 1 if it is set.
-*/
-SQLITE_API int tdsqlite3session_indirect(tdsqlite3_session *pSession, int bIndirect);
-
-/*
-** CAPI3REF: Attach A Table To A Session Object
-** METHOD: tdsqlite3_session
-**
-** If argument zTab is not NULL, then it is the name of a table to attach
-** to the session object passed as the first argument. All subsequent changes 
-** made to the table while the session object is enabled will be recorded. See 
-** documentation for [tdsqlite3session_changeset()] for further details.
-**
-** Or, if argument zTab is NULL, then changes are recorded for all tables
-** in the database. If additional tables are added to the database (by 
-** executing "CREATE TABLE" statements) after this call is made, changes for 
-** the new tables are also recorded.
-**
-** Changes can only be recorded for tables that have a PRIMARY KEY explicitly
-** defined as part of their CREATE TABLE statement. It does not matter if the 
-** PRIMARY KEY is an "INTEGER PRIMARY KEY" (rowid alias) or not. The PRIMARY
-** KEY may consist of a single column, or may be a composite key.
-** 
-** It is not an error if the named table does not exist in the database. Nor
-** is it an error if the named table does not have a PRIMARY KEY. However,
-** no changes will be recorded in either of these scenarios.
-**
-** Changes are not recorded for individual rows that have NULL values stored
-** in one or more of their PRIMARY KEY columns.
-**
-** SQLITE_OK is returned if the call completes without error. Or, if an error 
-** occurs, an SQLite error code (e.g. SQLITE_NOMEM) is returned.
-**
-** <h3>Special sqlite_stat1 Handling</h3>
-**
-** As of SQLite version 3.22.0, the "sqlite_stat1" table is an exception to 
-** some of the rules above. In SQLite, the schema of sqlite_stat1 is:
-**  <pre>
-**  &nbsp;     CREATE TABLE sqlite_stat1(tbl,idx,stat)  
-**  </pre>
-**
-** Even though sqlite_stat1 does not have a PRIMARY KEY, changes are 
-** recorded for it as if the PRIMARY KEY is (tbl,idx). Additionally, changes 
-** are recorded for rows for which (idx IS NULL) is true. However, for such
-** rows a zero-length blob (SQL value X'') is stored in the changeset or
-** patchset instead of a NULL value. This allows such changesets to be
-** manipulated by legacy implementations of tdsqlite3changeset_invert(),
-** concat() and similar.
-**
-** The tdsqlite3changeset_apply() function automatically converts the 
-** zero-length blob back to a NULL value when updating the sqlite_stat1
-** table. However, if the application calls tdsqlite3changeset_new(),
-** tdsqlite3changeset_old() or tdsqlite3changeset_conflict on a changeset 
-** iterator directly (including on a changeset iterator passed to a
-** conflict-handler callback) then the X'' value is returned. The application
-** must translate X'' to NULL itself if required.
-**
-** Legacy (older than 3.22.0) versions of the sessions module cannot capture
-** changes made to the sqlite_stat1 table. Legacy versions of the
-** tdsqlite3changeset_apply() function silently ignore any modifications to the
-** sqlite_stat1 table that are part of a changeset or patchset.
-*/
-SQLITE_API int tdsqlite3session_attach(
-  tdsqlite3_session *pSession,      /* Session object */
-  const char *zTab                /* Table name */
-);
-
-/*
-** CAPI3REF: Set a table filter on a Session Object.
-** METHOD: tdsqlite3_session
-**
-** The second argument (xFilter) is the "filter callback". For changes to rows 
-** in tables that are not attached to the Session object, the filter is called
-** to determine whether changes to the table's rows should be tracked or not. 
-** If xFilter returns 0, changes are not tracked. Note that once a table is 
-** attached, xFilter will not be called again.
-*/
-SQLITE_API void tdsqlite3session_table_filter(
-  tdsqlite3_session *pSession,      /* Session object */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of third arg to _filter_table() */
-    const char *zTab              /* Table name */
-  ),
-  void *pCtx                      /* First argument passed to xFilter */
-);
-
-/*
-** CAPI3REF: Generate A Changeset From A Session Object
-** METHOD: tdsqlite3_session
-**
-** Obtain a changeset containing changes to the tables attached to the 
-** session object passed as the first argument. If successful, 
-** set *ppChangeset to point to a buffer containing the changeset 
-** and *pnChangeset to the size of the changeset in bytes before returning
-** SQLITE_OK. If an error occurs, set both *ppChangeset and *pnChangeset to
-** zero and return an SQLite error code.
-**
-** A changeset consists of zero or more INSERT, UPDATE and/or DELETE changes,
-** each representing a change to a single row of an attached table. An INSERT
-** change contains the values of each field of a new database row. A DELETE
-** contains the original values of each field of a deleted database row. An
-** UPDATE change contains the original values of each field of an updated
-** database row along with the updated values for each updated non-primary-key
-** column. It is not possible for an UPDATE change to represent a change that
-** modifies the values of primary key columns. If such a change is made, it
-** is represented in a changeset as a DELETE followed by an INSERT.
-**
-** Changes are not recorded for rows that have NULL values stored in one or 
-** more of their PRIMARY KEY columns. If such a row is inserted or deleted,
-** no corresponding change is present in the changesets returned by this
-** function. If an existing row with one or more NULL values stored in
-** PRIMARY KEY columns is updated so that all PRIMARY KEY columns are non-NULL,
-** only an INSERT is appears in the changeset. Similarly, if an existing row
-** with non-NULL PRIMARY KEY values is updated so that one or more of its
-** PRIMARY KEY columns are set to NULL, the resulting changeset contains a
-** DELETE change only.
-**
-** The contents of a changeset may be traversed using an iterator created
-** using the [tdsqlite3changeset_start()] API. A changeset may be applied to
-** a database with a compatible schema using the [tdsqlite3changeset_apply()]
-** API.
-**
-** Within a changeset generated by this function, all changes related to a
-** single table are grouped together. In other words, when iterating through
-** a changeset or when applying a changeset to a database, all changes related
-** to a single table are processed before moving on to the next table. Tables
-** are sorted in the same order in which they were attached (or auto-attached)
-** to the tdsqlite3_session object. The order in which the changes related to
-** a single table are stored is undefined.
-**
-** Following a successful call to this function, it is the responsibility of
-** the caller to eventually free the buffer that *ppChangeset points to using
-** [tdsqlite3_free()].
-**
-** <h3>Changeset Generation</h3>
-**
-** Once a table has been attached to a session object, the session object
-** records the primary key values of all new rows inserted into the table.
-** It also records the original primary key and other column values of any
-** deleted or updated rows. For each unique primary key value, data is only
-** recorded once - the first time a row with said primary key is inserted,
-** updated or deleted in the lifetime of the session.
-**
-** There is one exception to the previous paragraph: when a row is inserted,
-** updated or deleted, if one or more of its primary key columns contain a
-** NULL value, no record of the change is made.
-**
-** The session object therefore accumulates two types of records - those
-** that consist of primary key values only (created when the user inserts
-** a new record) and those that consist of the primary key values and the
-** original values of other table columns (created when the users deletes
-** or updates a record).
-**
-** When this function is called, the requested changeset is created using
-** both the accumulated records and the current contents of the database
-** file. Specifically:
-**
-** <ul>
-**   <li> For each record generated by an insert, the database is queried
-**        for a row with a matching primary key. If one is found, an INSERT
-**        change is added to the changeset. If no such row is found, no change 
-**        is added to the changeset.
-**
-**   <li> For each record generated by an update or delete, the database is 
-**        queried for a row with a matching primary key. If such a row is
-**        found and one or more of the non-primary key fields have been
-**        modified from their original values, an UPDATE change is added to 
-**        the changeset. Or, if no such row is found in the table, a DELETE 
-**        change is added to the changeset. If there is a row with a matching
-**        primary key in the database, but all fields contain their original
-**        values, no change is added to the changeset.
-** </ul>
-**
-** This means, amongst other things, that if a row is inserted and then later
-** deleted while a session object is active, neither the insert nor the delete
-** will be present in the changeset. Or if a row is deleted and then later a 
-** row with the same primary key values inserted while a session object is
-** active, the resulting changeset will contain an UPDATE change instead of
-** a DELETE and an INSERT.
-**
-** When a session object is disabled (see the [tdsqlite3session_enable()] API),
-** it does not accumulate records when rows are inserted, updated or deleted.
-** This may appear to have some counter-intuitive effects if a single row
-** is written to more than once during a session. For example, if a row
-** is inserted while a session object is enabled, then later deleted while 
-** the same session object is disabled, no INSERT record will appear in the
-** changeset, even though the delete took place while the session was disabled.
-** Or, if one field of a row is updated while a session is disabled, and 
-** another field of the same row is updated while the session is enabled, the
-** resulting changeset will contain an UPDATE change that updates both fields.
-*/
-SQLITE_API int tdsqlite3session_changeset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
-  void **ppChangeset              /* OUT: Buffer containing changeset */
-);
-
-/*
-** CAPI3REF: Load The Difference Between Tables Into A Session
-** METHOD: tdsqlite3_session
-**
-** If it is not already attached to the session object passed as the first
-** argument, this function attaches table zTbl in the same manner as the
-** [tdsqlite3session_attach()] function. If zTbl does not exist, or if it
-** does not have a primary key, this function is a no-op (but does not return
-** an error).
-**
-** Argument zFromDb must be the name of a database ("main", "temp" etc.)
-** attached to the same database handle as the session object that contains 
-** a table compatible with the table attached to the session by this function.
-** A table is considered compatible if it:
-**
-** <ul>
-**   <li> Has the same name,
-**   <li> Has the same set of columns declared in the same order, and
-**   <li> Has the same PRIMARY KEY definition.
-** </ul>
-**
-** If the tables are not compatible, SQLITE_SCHEMA is returned. If the tables
-** are compatible but do not have any PRIMARY KEY columns, it is not an error
-** but no changes are added to the session object. As with other session
-** APIs, tables without PRIMARY KEYs are simply ignored.
-**
-** This function adds a set of changes to the session object that could be
-** used to update the table in database zFrom (call this the "from-table") 
-** so that its content is the same as the table attached to the session 
-** object (call this the "to-table"). Specifically:
-**
-** <ul>
-**   <li> For each row (primary key) that exists in the to-table but not in 
-**     the from-table, an INSERT record is added to the session object.
-**
-**   <li> For each row (primary key) that exists in the to-table but not in 
-**     the from-table, a DELETE record is added to the session object.
-**
-**   <li> For each row (primary key) that exists in both tables, but features 
-**     different non-PK values in each, an UPDATE record is added to the
-**     session.  
-** </ul>
-**
-** To clarify, if this function is called and then a changeset constructed
-** using [tdsqlite3session_changeset()], then after applying that changeset to 
-** database zFrom the contents of the two compatible tables would be 
-** identical.
-**
-** It an error if database zFrom does not exist or does not contain the
-** required compatible table.
-**
-** If the operation is successful, SQLITE_OK is returned. Otherwise, an SQLite
-** error code. In this case, if argument pzErrMsg is not NULL, *pzErrMsg
-** may be set to point to a buffer containing an English language error 
-** message. It is the responsibility of the caller to free this buffer using
-** tdsqlite3_free().
-*/
-SQLITE_API int tdsqlite3session_diff(
-  tdsqlite3_session *pSession,
-  const char *zFromDb,
-  const char *zTbl,
-  char **pzErrMsg
-);
-
-
-/*
-** CAPI3REF: Generate A Patchset From A Session Object
-** METHOD: tdsqlite3_session
-**
-** The differences between a patchset and a changeset are that:
-**
-** <ul>
-**   <li> DELETE records consist of the primary key fields only. The 
-**        original values of other fields are omitted.
-**   <li> The original values of any modified fields are omitted from 
-**        UPDATE records.
-** </ul>
-**
-** A patchset blob may be used with up to date versions of all 
-** tdsqlite3changeset_xxx API functions except for tdsqlite3changeset_invert(), 
-** which returns SQLITE_CORRUPT if it is passed a patchset. Similarly,
-** attempting to use a patchset blob with old versions of the
-** tdsqlite3changeset_xxx APIs also provokes an SQLITE_CORRUPT error. 
-**
-** Because the non-primary key "old.*" fields are omitted, no 
-** SQLITE_CHANGESET_DATA conflicts can be detected or reported if a patchset
-** is passed to the tdsqlite3changeset_apply() API. Other conflict types work
-** in the same way as for changesets.
-**
-** Changes within a patchset are ordered in the same way as for changesets
-** generated by the tdsqlite3session_changeset() function (i.e. all changes for
-** a single table are grouped together, tables appear in the order in which
-** they were attached to the session object).
-*/
-SQLITE_API int tdsqlite3session_patchset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int *pnPatchset,                /* OUT: Size of buffer at *ppPatchset */
-  void **ppPatchset               /* OUT: Buffer containing patchset */
-);
-
-/*
-** CAPI3REF: Test if a changeset has recorded any changes.
-**
-** Return non-zero if no changes to attached tables have been recorded by 
-** the session object passed as the first argument. Otherwise, if one or 
-** more changes have been recorded, return zero.
-**
-** Even if this function returns zero, it is possible that calling
-** [tdsqlite3session_changeset()] on the session handle may still return a
-** changeset that contains no changes. This can happen when a row in 
-** an attached table is modified and then later on the original values 
-** are restored. However, if this function returns non-zero, then it is
-** guaranteed that a call to tdsqlite3session_changeset() will return a 
-** changeset containing zero changes.
-*/
-SQLITE_API int tdsqlite3session_isempty(tdsqlite3_session *pSession);
-
-/*
-** CAPI3REF: Create An Iterator To Traverse A Changeset 
-** CONSTRUCTOR: tdsqlite3_changeset_iter
-**
-** Create an iterator used to iterate through the contents of a changeset.
-** If successful, *pp is set to point to the iterator handle and SQLITE_OK
-** is returned. Otherwise, if an error occurs, *pp is set to zero and an
-** SQLite error code is returned.
-**
-** The following functions can be used to advance and query a changeset 
-** iterator created by this function:
-**
-** <ul>
-**   <li> [tdsqlite3changeset_next()]
-**   <li> [tdsqlite3changeset_op()]
-**   <li> [tdsqlite3changeset_new()]
-**   <li> [tdsqlite3changeset_old()]
-** </ul>
-**
-** It is the responsibility of the caller to eventually destroy the iterator
-** by passing it to [tdsqlite3changeset_finalize()]. The buffer containing the
-** changeset (pChangeset) must remain valid until after the iterator is
-** destroyed.
-**
-** Assuming the changeset blob was created by one of the
-** [tdsqlite3session_changeset()], [tdsqlite3changeset_concat()] or
-** [tdsqlite3changeset_invert()] functions, all changes within the changeset 
-** that apply to a single table are grouped together. This means that when 
-** an application iterates through a changeset using an iterator created by 
-** this function, all changes that relate to a single table are visited 
-** consecutively. There is no chance that the iterator will visit a change 
-** the applies to table X, then one for table Y, and then later on visit 
-** another change for table X.
-**
-** The behavior of tdsqlite3changeset_start_v2() and its streaming equivalent
-** may be modified by passing a combination of
-** [SQLITE_CHANGESETSTART_INVERT | supported flags] as the 4th parameter.
-**
-** Note that the tdsqlite3changeset_start_v2() API is still <b>experimental</b>
-** and therefore subject to change.
-*/
-SQLITE_API int tdsqlite3changeset_start(
-  tdsqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
-  int nChangeset,                 /* Size of changeset blob in bytes */
-  void *pChangeset                /* Pointer to blob containing changeset */
-);
-SQLITE_API int tdsqlite3changeset_start_v2(
-  tdsqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
-  int nChangeset,                 /* Size of changeset blob in bytes */
-  void *pChangeset,               /* Pointer to blob containing changeset */
-  int flags                       /* SESSION_CHANGESETSTART_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3changeset_start_v2
-**
-** The following flags may passed via the 4th parameter to
-** [tdsqlite3changeset_start_v2] and [tdsqlite3changeset_start_v2_strm]:
-**
-** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
-**   Invert the changeset while iterating through it. This is equivalent to
-**   inverting a changeset using tdsqlite3changeset_invert() before applying it.
-**   It is an error to specify this flag with a patchset.
-*/
-#define SQLITE_CHANGESETSTART_INVERT        0x0002
-
-
-/*
-** CAPI3REF: Advance A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function may only be used with iterators created by the function
-** [tdsqlite3changeset_start()]. If it is called on an iterator passed to
-** a conflict-handler callback by [tdsqlite3changeset_apply()], SQLITE_MISUSE
-** is returned and the call has no effect.
-**
-** Immediately after an iterator is created by tdsqlite3changeset_start(), it
-** does not point to any change in the changeset. Assuming the changeset
-** is not empty, the first call to this function advances the iterator to
-** point to the first change in the changeset. Each subsequent call advances
-** the iterator to point to the next change in the changeset (if any). If
-** no error occurs and the iterator points to a valid change after a call
-** to tdsqlite3changeset_next() has advanced it, SQLITE_ROW is returned. 
-** Otherwise, if all changes in the changeset have already been visited,
-** SQLITE_DONE is returned.
-**
-** If an error occurs, an SQLite error code is returned. Possible error 
-** codes include SQLITE_CORRUPT (if the changeset buffer is corrupt) or 
-** SQLITE_NOMEM.
-*/
-SQLITE_API int tdsqlite3changeset_next(tdsqlite3_changeset_iter *pIter);
-
-/*
-** CAPI3REF: Obtain The Current Operation From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned [SQLITE_ROW]. If this
-** is not the case, this function returns [SQLITE_MISUSE].
-**
-** If argument pzTab is not NULL, then *pzTab is set to point to a
-** nul-terminated utf-8 encoded string containing the name of the table
-** affected by the current change. The buffer remains valid until either
-** tdsqlite3changeset_next() is called on the iterator or until the 
-** conflict-handler function returns. If pnCol is not NULL, then *pnCol is 
-** set to the number of columns in the table affected by the change. If
-** pbIndirect is not NULL, then *pbIndirect is set to true (1) if the change
-** is an indirect change, or false (0) otherwise. See the documentation for
-** [tdsqlite3session_indirect()] for a description of direct and indirect
-** changes. Finally, if pOp is not NULL, then *pOp is set to one of 
-** [SQLITE_INSERT], [SQLITE_DELETE] or [SQLITE_UPDATE], depending on the 
-** type of change that the iterator currently points to.
-**
-** If no error occurs, SQLITE_OK is returned. If an error does occur, an
-** SQLite error code is returned. The values of the output variables may not
-** be trusted in this case.
-*/
-SQLITE_API int tdsqlite3changeset_op(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator object */
-  const char **pzTab,             /* OUT: Pointer to table name */
-  int *pnCol,                     /* OUT: Number of columns in table */
-  int *pOp,                       /* OUT: SQLITE_INSERT, DELETE or UPDATE */
-  int *pbIndirect                 /* OUT: True for an 'indirect' change */
-);
-
-/*
-** CAPI3REF: Obtain The Primary Key Definition Of A Table
-** METHOD: tdsqlite3_changeset_iter
-**
-** For each modified table, a changeset includes the following:
-**
-** <ul>
-**   <li> The number of columns in the table, and
-**   <li> Which of those columns make up the tables PRIMARY KEY.
-** </ul>
-**
-** This function is used to find which columns comprise the PRIMARY KEY of
-** the table modified by the change that iterator pIter currently points to.
-** If successful, *pabPK is set to point to an array of nCol entries, where
-** nCol is the number of columns in the table. Elements of *pabPK are set to
-** 0x01 if the corresponding column is part of the tables primary key, or
-** 0x00 if it is not.
-**
-** If argument pnCol is not NULL, then *pnCol is set to the number of columns
-** in the table.
-**
-** If this function is called when the iterator does not point to a valid
-** entry, SQLITE_MISUSE is returned and the output variables zeroed. Otherwise,
-** SQLITE_OK is returned and the output variables populated as described
-** above.
-*/
-SQLITE_API int tdsqlite3changeset_pk(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator object */
-  unsigned char **pabPK,          /* OUT: Array of boolean - true for PK cols */
-  int *pnCol                      /* OUT: Number of entries in output array */
-);
-
-/*
-** CAPI3REF: Obtain old.* Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned SQLITE_ROW. 
-** Furthermore, it may only be called if the type of change that the iterator
-** currently points to is either [SQLITE_DELETE] or [SQLITE_UPDATE]. Otherwise,
-** this function returns [SQLITE_MISUSE] and sets *ppValue to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the vector of 
-** original row values stored as part of the UPDATE or DELETE change and
-** returns SQLITE_OK. The name of the function comes from the fact that this 
-** is similar to the "old.*" columns available to update or delete triggers.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-SQLITE_API int tdsqlite3changeset_old(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: Old value (or NULL pointer) */
-);
-
-/*
-** CAPI3REF: Obtain new.* Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned SQLITE_ROW. 
-** Furthermore, it may only be called if the type of change that the iterator
-** currently points to is either [SQLITE_UPDATE] or [SQLITE_INSERT]. Otherwise,
-** this function returns [SQLITE_MISUSE] and sets *ppValue to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the vector of 
-** new row values stored as part of the UPDATE or INSERT change and
-** returns SQLITE_OK. If the change is an UPDATE and does not include
-** a new value for the requested column, *ppValue is set to NULL and 
-** SQLITE_OK returned. The name of the function comes from the fact that 
-** this is similar to the "new.*" columns available to update or delete 
-** triggers.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-SQLITE_API int tdsqlite3changeset_new(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: New value (or NULL pointer) */
-);
-
-/*
-** CAPI3REF: Obtain Conflicting Row Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function should only be used with iterator objects passed to a
-** conflict-handler callback by [tdsqlite3changeset_apply()] with either
-** [SQLITE_CHANGESET_DATA] or [SQLITE_CHANGESET_CONFLICT]. If this function
-** is called on any other iterator, [SQLITE_MISUSE] is returned and *ppValue
-** is set to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the 
-** "conflicting row" associated with the current conflict-handler callback
-** and returns SQLITE_OK.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-SQLITE_API int tdsqlite3changeset_conflict(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: Value from conflicting row */
-);
-
-/*
-** CAPI3REF: Determine The Number Of Foreign Key Constraint Violations
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function may only be called with an iterator passed to an
-** SQLITE_CHANGESET_FOREIGN_KEY conflict handler callback. In this case
-** it sets the output variable to the total number of known foreign key
-** violations in the destination database and returns SQLITE_OK.
-**
-** In all other cases this function returns SQLITE_MISUSE.
-*/
-SQLITE_API int tdsqlite3changeset_fk_conflicts(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int *pnOut                      /* OUT: Number of FK violations */
-);
-
-
-/*
-** CAPI3REF: Finalize A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function is used to finalize an iterator allocated with
-** [tdsqlite3changeset_start()].
-**
-** This function should only be called on iterators created using the
-** [tdsqlite3changeset_start()] function. If an application calls this
-** function with an iterator passed to a conflict-handler by
-** [tdsqlite3changeset_apply()], [SQLITE_MISUSE] is immediately returned and the
-** call has no effect.
-**
-** If an error was encountered within a call to an tdsqlite3changeset_xxx()
-** function (for example an [SQLITE_CORRUPT] in [tdsqlite3changeset_next()] or an 
-** [SQLITE_NOMEM] in [tdsqlite3changeset_new()]) then an error code corresponding
-** to that error is returned by this function. Otherwise, SQLITE_OK is
-** returned. This is to allow the following pattern (pseudo-code):
-**
-** <pre>
-**   tdsqlite3changeset_start();
-**   while( SQLITE_ROW==tdsqlite3changeset_next() ){
-**     // Do something with change.
-**   }
-**   rc = tdsqlite3changeset_finalize();
-**   if( rc!=SQLITE_OK ){
-**     // An error has occurred 
-**   }
-** </pre>
-*/
-SQLITE_API int tdsqlite3changeset_finalize(tdsqlite3_changeset_iter *pIter);
-
-/*
-** CAPI3REF: Invert A Changeset
-**
-** This function is used to "invert" a changeset object. Applying an inverted
-** changeset to a database reverses the effects of applying the uninverted
-** changeset. Specifically:
-**
-** <ul>
-**   <li> Each DELETE change is changed to an INSERT, and
-**   <li> Each INSERT change is changed to a DELETE, and
-**   <li> For each UPDATE change, the old.* and new.* values are exchanged.
-** </ul>
-**
-** This function does not change the order in which changes appear within
-** the changeset. It merely reverses the sense of each individual change.
-**
-** If successful, a pointer to a buffer containing the inverted changeset
-** is stored in *ppOut, the size of the same buffer is stored in *pnOut, and
-** SQLITE_OK is returned. If an error occurs, both *pnOut and *ppOut are
-** zeroed and an SQLite error code returned.
-**
-** It is the responsibility of the caller to eventually call tdsqlite3_free()
-** on the *ppOut pointer to free the buffer allocation following a successful 
-** call to this function.
-**
-** WARNING/TODO: This function currently assumes that the input is a valid
-** changeset. If it is not, the results are undefined.
-*/
-SQLITE_API int tdsqlite3changeset_invert(
-  int nIn, const void *pIn,       /* Input changeset */
-  int *pnOut, void **ppOut        /* OUT: Inverse of input */
-);
-
-/*
-** CAPI3REF: Concatenate Two Changeset Objects
-**
-** This function is used to concatenate two changesets, A and B, into a 
-** single changeset. The result is a changeset equivalent to applying
-** changeset A followed by changeset B. 
-**
-** This function combines the two input changesets using an 
-** tdsqlite3_changegroup object. Calling it produces similar results as the
-** following code fragment:
-**
-** <pre>
-**   tdsqlite3_changegroup *pGrp;
-**   rc = tdsqlite3_changegroup_new(&pGrp);
-**   if( rc==SQLITE_OK ) rc = tdsqlite3changegroup_add(pGrp, nA, pA);
-**   if( rc==SQLITE_OK ) rc = tdsqlite3changegroup_add(pGrp, nB, pB);
-**   if( rc==SQLITE_OK ){
-**     rc = tdsqlite3changegroup_output(pGrp, pnOut, ppOut);
-**   }else{
-**     *ppOut = 0;
-**     *pnOut = 0;
-**   }
-** </pre>
-**
-** Refer to the tdsqlite3_changegroup documentation below for details.
-*/
-SQLITE_API int tdsqlite3changeset_concat(
-  int nA,                         /* Number of bytes in buffer pA */
-  void *pA,                       /* Pointer to buffer containing changeset A */
-  int nB,                         /* Number of bytes in buffer pB */
-  void *pB,                       /* Pointer to buffer containing changeset B */
-  int *pnOut,                     /* OUT: Number of bytes in output changeset */
-  void **ppOut                    /* OUT: Buffer containing output changeset */
-);
-
-
-/*
-** CAPI3REF: Changegroup Handle
-**
-** A changegroup is an object used to combine two or more 
-** [changesets] or [patchsets]
-*/
-typedef struct tdsqlite3_changegroup tdsqlite3_changegroup;
-
-/*
-** CAPI3REF: Create A New Changegroup Object
-** CONSTRUCTOR: tdsqlite3_changegroup
-**
-** An tdsqlite3_changegroup object is used to combine two or more changesets
-** (or patchsets) into a single changeset (or patchset). A single changegroup
-** object may combine changesets or patchsets, but not both. The output is
-** always in the same format as the input.
-**
-** If successful, this function returns SQLITE_OK and populates (*pp) with
-** a pointer to a new tdsqlite3_changegroup object before returning. The caller
-** should eventually free the returned object using a call to 
-** tdsqlite3changegroup_delete(). If an error occurs, an SQLite error code
-** (i.e. SQLITE_NOMEM) is returned and *pp is set to NULL.
-**
-** The usual usage pattern for an tdsqlite3_changegroup object is as follows:
-**
-** <ul>
-**   <li> It is created using a call to tdsqlite3changegroup_new().
-**
-**   <li> Zero or more changesets (or patchsets) are added to the object
-**        by calling tdsqlite3changegroup_add().
-**
-**   <li> The result of combining all input changesets together is obtained 
-**        by the application via a call to tdsqlite3changegroup_output().
-**
-**   <li> The object is deleted using a call to tdsqlite3changegroup_delete().
-** </ul>
-**
-** Any number of calls to add() and output() may be made between the calls to
-** new() and delete(), and in any order.
-**
-** As well as the regular tdsqlite3changegroup_add() and 
-** tdsqlite3changegroup_output() functions, also available are the streaming
-** versions tdsqlite3changegroup_add_strm() and tdsqlite3changegroup_output_strm().
-*/
-SQLITE_API int tdsqlite3changegroup_new(tdsqlite3_changegroup **pp);
-
-/*
-** CAPI3REF: Add A Changeset To A Changegroup
-** METHOD: tdsqlite3_changegroup
-**
-** Add all changes within the changeset (or patchset) in buffer pData (size
-** nData bytes) to the changegroup. 
-**
-** If the buffer contains a patchset, then all prior calls to this function
-** on the same changegroup object must also have specified patchsets. Or, if
-** the buffer contains a changeset, so must have the earlier calls to this
-** function. Otherwise, SQLITE_ERROR is returned and no changes are added
-** to the changegroup.
-**
-** Rows within the changeset and changegroup are identified by the values in
-** their PRIMARY KEY columns. A change in the changeset is considered to
-** apply to the same row as a change already present in the changegroup if
-** the two rows have the same primary key.
-**
-** Changes to rows that do not already appear in the changegroup are
-** simply copied into it. Or, if both the new changeset and the changegroup
-** contain changes that apply to a single row, the final contents of the
-** changegroup depends on the type of each change, as follows:
-**
-** <table border=1 style="margin-left:8ex;margin-right:8ex">
-**   <tr><th style="white-space:pre">Existing Change  </th>
-**       <th style="white-space:pre">New Change       </th>
-**       <th>Output Change
-**   <tr><td>INSERT <td>INSERT <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>INSERT <td>UPDATE <td>
-**       The INSERT change remains in the changegroup. The values in the 
-**       INSERT change are modified as if the row was inserted by the
-**       existing change and then updated according to the new change.
-**   <tr><td>INSERT <td>DELETE <td>
-**       The existing INSERT is removed from the changegroup. The DELETE is
-**       not added.
-**   <tr><td>UPDATE <td>INSERT <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>UPDATE <td>UPDATE <td>
-**       The existing UPDATE remains within the changegroup. It is amended 
-**       so that the accompanying values are as if the row was updated once 
-**       by the existing change and then again by the new change.
-**   <tr><td>UPDATE <td>DELETE <td>
-**       The existing UPDATE is replaced by the new DELETE within the
-**       changegroup.
-**   <tr><td>DELETE <td>INSERT <td>
-**       If one or more of the column values in the row inserted by the
-**       new change differ from those in the row deleted by the existing 
-**       change, the existing DELETE is replaced by an UPDATE within the
-**       changegroup. Otherwise, if the inserted row is exactly the same 
-**       as the deleted row, the existing DELETE is simply discarded.
-**   <tr><td>DELETE <td>UPDATE <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>DELETE <td>DELETE <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-** </table>
-**
-** If the new changeset contains changes to a table that is already present
-** in the changegroup, then the number of columns and the position of the
-** primary key columns for the table must be consistent. If this is not the
-** case, this function fails with SQLITE_SCHEMA. If the input changeset
-** appears to be corrupt and the corruption is detected, SQLITE_CORRUPT is
-** returned. Or, if an out-of-memory condition occurs during processing, this
-** function returns SQLITE_NOMEM. In all cases, if an error occurs the state
-** of the final contents of the changegroup is undefined.
-**
-** If no error occurs, SQLITE_OK is returned.
-*/
-SQLITE_API int tdsqlite3changegroup_add(tdsqlite3_changegroup*, int nData, void *pData);
-
-/*
-** CAPI3REF: Obtain A Composite Changeset From A Changegroup
-** METHOD: tdsqlite3_changegroup
-**
-** Obtain a buffer containing a changeset (or patchset) representing the
-** current contents of the changegroup. If the inputs to the changegroup
-** were themselves changesets, the output is a changeset. Or, if the
-** inputs were patchsets, the output is also a patchset.
-**
-** As with the output of the tdsqlite3session_changeset() and
-** tdsqlite3session_patchset() functions, all changes related to a single
-** table are grouped together in the output of this function. Tables appear
-** in the same order as for the very first changeset added to the changegroup.
-** If the second or subsequent changesets added to the changegroup contain
-** changes for tables that do not appear in the first changeset, they are
-** appended onto the end of the output changeset, again in the order in
-** which they are first encountered.
-**
-** If an error occurs, an SQLite error code is returned and the output
-** variables (*pnData) and (*ppData) are set to 0. Otherwise, SQLITE_OK
-** is returned and the output variables are set to the size of and a 
-** pointer to the output buffer, respectively. In this case it is the
-** responsibility of the caller to eventually free the buffer using a
-** call to tdsqlite3_free().
-*/
-SQLITE_API int tdsqlite3changegroup_output(
-  tdsqlite3_changegroup*,
-  int *pnData,                    /* OUT: Size of output buffer in bytes */
-  void **ppData                   /* OUT: Pointer to output buffer */
-);
-
-/*
-** CAPI3REF: Delete A Changegroup Object
-** DESTRUCTOR: tdsqlite3_changegroup
-*/
-SQLITE_API void tdsqlite3changegroup_delete(tdsqlite3_changegroup*);
-
-/*
-** CAPI3REF: Apply A Changeset To A Database
-**
-** Apply a changeset or patchset to a database. These functions attempt to
-** update the "main" database attached to handle db with the changes found in
-** the changeset passed via the second and third arguments. 
-**
-** The fourth argument (xFilter) passed to these functions is the "filter
-** callback". If it is not NULL, then for each table affected by at least one
-** change in the changeset, the filter callback is invoked with
-** the table name as the second argument, and a copy of the context pointer
-** passed as the sixth argument as the first. If the "filter callback"
-** returns zero, then no attempt is made to apply any changes to the table.
-** Otherwise, if the return value is non-zero or the xFilter argument to
-** is NULL, all changes related to the table are attempted.
-**
-** For each table that is not excluded by the filter callback, this function 
-** tests that the target database contains a compatible table. A table is 
-** considered compatible if all of the following are true:
-**
-** <ul>
-**   <li> The table has the same name as the name recorded in the 
-**        changeset, and
-**   <li> The table has at least as many columns as recorded in the 
-**        changeset, and
-**   <li> The table has primary key columns in the same position as 
-**        recorded in the changeset.
-** </ul>
-**
-** If there is no compatible table, it is not an error, but none of the
-** changes associated with the table are applied. A warning message is issued
-** via the tdsqlite3_log() mechanism with the error code SQLITE_SCHEMA. At most
-** one such warning is issued for each table in the changeset.
-**
-** For each change for which there is a compatible table, an attempt is made 
-** to modify the table contents according to the UPDATE, INSERT or DELETE 
-** change. If a change cannot be applied cleanly, the conflict handler 
-** function passed as the fifth argument to tdsqlite3changeset_apply() may be 
-** invoked. A description of exactly when the conflict handler is invoked for 
-** each type of change is below.
-**
-** Unlike the xFilter argument, xConflict may not be passed NULL. The results
-** of passing anything other than a valid function pointer as the xConflict
-** argument are undefined.
-**
-** Each time the conflict handler function is invoked, it must return one
-** of [SQLITE_CHANGESET_OMIT], [SQLITE_CHANGESET_ABORT] or 
-** [SQLITE_CHANGESET_REPLACE]. SQLITE_CHANGESET_REPLACE may only be returned
-** if the second argument passed to the conflict handler is either
-** SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT. If the conflict-handler
-** returns an illegal value, any changes already made are rolled back and
-** the call to tdsqlite3changeset_apply() returns SQLITE_MISUSE. Different 
-** actions are taken by tdsqlite3changeset_apply() depending on the value
-** returned by each invocation of the conflict-handler function. Refer to
-** the documentation for the three 
-** [SQLITE_CHANGESET_OMIT|available return values] for details.
-**
-** <dl>
-** <dt>DELETE Changes<dd>
-**   For each DELETE change, the function checks if the target database 
-**   contains a row with the same primary key value (or values) as the 
-**   original row values stored in the changeset. If it does, and the values 
-**   stored in all non-primary key columns also match the values stored in 
-**   the changeset the row is deleted from the target database.
-**
-**   If a row with matching primary key values is found, but one or more of
-**   the non-primary key fields contains a value different from the original
-**   row value stored in the changeset, the conflict-handler function is
-**   invoked with [SQLITE_CHANGESET_DATA] as the second argument. If the
-**   database table has more columns than are recorded in the changeset,
-**   only the values of those non-primary key fields are compared against
-**   the current database contents - any trailing database table columns
-**   are ignored.
-**
-**   If no row with matching primary key values is found in the database,
-**   the conflict-handler function is invoked with [SQLITE_CHANGESET_NOTFOUND]
-**   passed as the second argument.
-**
-**   If the DELETE operation is attempted, but SQLite returns SQLITE_CONSTRAINT
-**   (which can only happen if a foreign key constraint is violated), the
-**   conflict-handler function is invoked with [SQLITE_CHANGESET_CONSTRAINT]
-**   passed as the second argument. This includes the case where the DELETE
-**   operation is attempted because an earlier call to the conflict handler
-**   function returned [SQLITE_CHANGESET_REPLACE].
-**
-** <dt>INSERT Changes<dd>
-**   For each INSERT change, an attempt is made to insert the new row into
-**   the database. If the changeset row contains fewer fields than the
-**   database table, the trailing fields are populated with their default
-**   values.
-**
-**   If the attempt to insert the row fails because the database already 
-**   contains a row with the same primary key values, the conflict handler
-**   function is invoked with the second argument set to 
-**   [SQLITE_CHANGESET_CONFLICT].
-**
-**   If the attempt to insert the row fails because of some other constraint
-**   violation (e.g. NOT NULL or UNIQUE), the conflict handler function is 
-**   invoked with the second argument set to [SQLITE_CHANGESET_CONSTRAINT].
-**   This includes the case where the INSERT operation is re-attempted because 
-**   an earlier call to the conflict handler function returned 
-**   [SQLITE_CHANGESET_REPLACE].
-**
-** <dt>UPDATE Changes<dd>
-**   For each UPDATE change, the function checks if the target database 
-**   contains a row with the same primary key value (or values) as the 
-**   original row values stored in the changeset. If it does, and the values 
-**   stored in all modified non-primary key columns also match the values
-**   stored in the changeset the row is updated within the target database.
-**
-**   If a row with matching primary key values is found, but one or more of
-**   the modified non-primary key fields contains a value different from an
-**   original row value stored in the changeset, the conflict-handler function
-**   is invoked with [SQLITE_CHANGESET_DATA] as the second argument. Since
-**   UPDATE changes only contain values for non-primary key fields that are
-**   to be modified, only those fields need to match the original values to
-**   avoid the SQLITE_CHANGESET_DATA conflict-handler callback.
-**
-**   If no row with matching primary key values is found in the database,
-**   the conflict-handler function is invoked with [SQLITE_CHANGESET_NOTFOUND]
-**   passed as the second argument.
-**
-**   If the UPDATE operation is attempted, but SQLite returns 
-**   SQLITE_CONSTRAINT, the conflict-handler function is invoked with 
-**   [SQLITE_CHANGESET_CONSTRAINT] passed as the second argument.
-**   This includes the case where the UPDATE operation is attempted after 
-**   an earlier call to the conflict handler function returned
-**   [SQLITE_CHANGESET_REPLACE].  
-** </dl>
-**
-** It is safe to execute SQL statements, including those that write to the
-** table that the callback related to, from within the xConflict callback.
-** This can be used to further customize the application's conflict
-** resolution strategy.
-**
-** All changes made by these functions are enclosed in a savepoint transaction.
-** If any other error (aside from a constraint failure when attempting to
-** write to the target database) occurs, then the savepoint transaction is
-** rolled back, restoring the target database to its original state, and an 
-** SQLite error code returned.
-**
-** If the output parameters (ppRebase) and (pnRebase) are non-NULL and
-** the input is a changeset (not a patchset), then tdsqlite3changeset_apply_v2()
-** may set (*ppRebase) to point to a "rebase" that may be used with the 
-** tdsqlite3_rebaser APIs buffer before returning. In this case (*pnRebase)
-** is set to the size of the buffer in bytes. It is the responsibility of the
-** caller to eventually free any such buffer using tdsqlite3_free(). The buffer
-** is only allocated and populated if one or more conflicts were encountered
-** while applying the patchset. See comments surrounding the tdsqlite3_rebaser
-** APIs for further details.
-**
-** The behavior of tdsqlite3changeset_apply_v2() and its streaming equivalent
-** may be modified by passing a combination of
-** [SQLITE_CHANGESETAPPLY_NOSAVEPOINT | supported flags] as the 9th parameter.
-**
-** Note that the tdsqlite3changeset_apply_v2() API is still <b>experimental</b>
-** and therefore subject to change.
-*/
-SQLITE_API int tdsqlite3changeset_apply(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int nChangeset,                 /* Size of changeset in bytes */
-  void *pChangeset,               /* Changeset blob */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx                      /* First argument passed to xConflict */
-);
-SQLITE_API int tdsqlite3changeset_apply_v2(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int nChangeset,                 /* Size of changeset in bytes */
-  void *pChangeset,               /* Changeset blob */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase, /* OUT: Rebase data */
-  int flags                       /* SESSION_CHANGESETAPPLY_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3changeset_apply_v2
-**
-** The following flags may passed via the 9th parameter to
-** [tdsqlite3changeset_apply_v2] and [tdsqlite3changeset_apply_v2_strm]:
-**
-** <dl>
-** <dt>SQLITE_CHANGESETAPPLY_NOSAVEPOINT <dd>
-**   Usually, the sessions module encloses all operations performed by
-**   a single call to apply_v2() or apply_v2_strm() in a [SAVEPOINT]. The
-**   SAVEPOINT is committed if the changeset or patchset is successfully
-**   applied, or rolled back if an error occurs. Specifying this flag
-**   causes the sessions module to omit this savepoint. In this case, if the
-**   caller has an open transaction or savepoint when apply_v2() is called, 
-**   it may revert the partially applied changeset by rolling it back.
-**
-** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
-**   Invert the changeset before applying it. This is equivalent to inverting
-**   a changeset using tdsqlite3changeset_invert() before applying it. It is
-**   an error to specify this flag with a patchset.
-*/
-#define SQLITE_CHANGESETAPPLY_NOSAVEPOINT   0x0001
-#define SQLITE_CHANGESETAPPLY_INVERT        0x0002
-
-/* 
-** CAPI3REF: Constants Passed To The Conflict Handler
-**
-** Values that may be passed as the second argument to a conflict-handler.
-**
-** <dl>
-** <dt>SQLITE_CHANGESET_DATA<dd>
-**   The conflict handler is invoked with CHANGESET_DATA as the second argument
-**   when processing a DELETE or UPDATE change if a row with the required
-**   PRIMARY KEY fields is present in the database, but one or more other 
-**   (non primary-key) fields modified by the update do not contain the 
-**   expected "before" values.
-** 
-**   The conflicting row, in this case, is the database row with the matching
-**   primary key.
-** 
-** <dt>SQLITE_CHANGESET_NOTFOUND<dd>
-**   The conflict handler is invoked with CHANGESET_NOTFOUND as the second
-**   argument when processing a DELETE or UPDATE change if a row with the
-**   required PRIMARY KEY fields is not present in the database.
-** 
-**   There is no conflicting row in this case. The results of invoking the
-**   tdsqlite3changeset_conflict() API are undefined.
-** 
-** <dt>SQLITE_CHANGESET_CONFLICT<dd>
-**   CHANGESET_CONFLICT is passed as the second argument to the conflict
-**   handler while processing an INSERT change if the operation would result 
-**   in duplicate primary key values.
-** 
-**   The conflicting row in this case is the database row with the matching
-**   primary key.
-**
-** <dt>SQLITE_CHANGESET_FOREIGN_KEY<dd>
-**   If foreign key handling is enabled, and applying a changeset leaves the
-**   database in a state containing foreign key violations, the conflict 
-**   handler is invoked with CHANGESET_FOREIGN_KEY as the second argument
-**   exactly once before the changeset is committed. If the conflict handler
-**   returns CHANGESET_OMIT, the changes, including those that caused the
-**   foreign key constraint violation, are committed. Or, if it returns
-**   CHANGESET_ABORT, the changeset is rolled back.
-**
-**   No current or conflicting row information is provided. The only function
-**   it is possible to call on the supplied tdsqlite3_changeset_iter handle
-**   is tdsqlite3changeset_fk_conflicts().
-** 
-** <dt>SQLITE_CHANGESET_CONSTRAINT<dd>
-**   If any other constraint violation occurs while applying a change (i.e. 
-**   a UNIQUE, CHECK or NOT NULL constraint), the conflict handler is 
-**   invoked with CHANGESET_CONSTRAINT as the second argument.
-** 
-**   There is no conflicting row in this case. The results of invoking the
-**   tdsqlite3changeset_conflict() API are undefined.
-**
-** </dl>
-*/
-#define SQLITE_CHANGESET_DATA        1
-#define SQLITE_CHANGESET_NOTFOUND    2
-#define SQLITE_CHANGESET_CONFLICT    3
-#define SQLITE_CHANGESET_CONSTRAINT  4
-#define SQLITE_CHANGESET_FOREIGN_KEY 5
-
-/* 
-** CAPI3REF: Constants Returned By The Conflict Handler
-**
-** A conflict handler callback must return one of the following three values.
-**
-** <dl>
-** <dt>SQLITE_CHANGESET_OMIT<dd>
-**   If a conflict handler returns this value no special action is taken. The
-**   change that caused the conflict is not applied. The session module 
-**   continues to the next change in the changeset.
-**
-** <dt>SQLITE_CHANGESET_REPLACE<dd>
-**   This value may only be returned if the second argument to the conflict
-**   handler was SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT. If this
-**   is not the case, any changes applied so far are rolled back and the 
-**   call to tdsqlite3changeset_apply() returns SQLITE_MISUSE.
-**
-**   If CHANGESET_REPLACE is returned by an SQLITE_CHANGESET_DATA conflict
-**   handler, then the conflicting row is either updated or deleted, depending
-**   on the type of change.
-**
-**   If CHANGESET_REPLACE is returned by an SQLITE_CHANGESET_CONFLICT conflict
-**   handler, then the conflicting row is removed from the database and a
-**   second attempt to apply the change is made. If this second attempt fails,
-**   the original row is restored to the database before continuing.
-**
-** <dt>SQLITE_CHANGESET_ABORT<dd>
-**   If this value is returned, any changes applied so far are rolled back 
-**   and the call to tdsqlite3changeset_apply() returns SQLITE_ABORT.
-** </dl>
-*/
-#define SQLITE_CHANGESET_OMIT       0
-#define SQLITE_CHANGESET_REPLACE    1
-#define SQLITE_CHANGESET_ABORT      2
-
-/* 
-** CAPI3REF: Rebasing changesets
-** EXPERIMENTAL
-**
-** Suppose there is a site hosting a database in state S0. And that
-** modifications are made that move that database to state S1 and a
-** changeset recorded (the "local" changeset). Then, a changeset based
-** on S0 is received from another site (the "remote" changeset) and 
-** applied to the database. The database is then in state 
-** (S1+"remote"), where the exact state depends on any conflict
-** resolution decisions (OMIT or REPLACE) made while applying "remote".
-** Rebasing a changeset is to update it to take those conflict 
-** resolution decisions into account, so that the same conflicts
-** do not have to be resolved elsewhere in the network. 
-**
-** For example, if both the local and remote changesets contain an
-** INSERT of the same key on "CREATE TABLE t1(a PRIMARY KEY, b)":
-**
-**   local:  INSERT INTO t1 VALUES(1, 'v1');
-**   remote: INSERT INTO t1 VALUES(1, 'v2');
-**
-** and the conflict resolution is REPLACE, then the INSERT change is
-** removed from the local changeset (it was overridden). Or, if the
-** conflict resolution was "OMIT", then the local changeset is modified
-** to instead contain:
-**
-**           UPDATE t1 SET b = 'v2' WHERE a=1;
-**
-** Changes within the local changeset are rebased as follows:
-**
-** <dl>
-** <dt>Local INSERT<dd>
-**   This may only conflict with a remote INSERT. If the conflict 
-**   resolution was OMIT, then add an UPDATE change to the rebased
-**   changeset. Or, if the conflict resolution was REPLACE, add
-**   nothing to the rebased changeset.
-**
-** <dt>Local DELETE<dd>
-**   This may conflict with a remote UPDATE or DELETE. In both cases the
-**   only possible resolution is OMIT. If the remote operation was a
-**   DELETE, then add no change to the rebased changeset. If the remote
-**   operation was an UPDATE, then the old.* fields of change are updated
-**   to reflect the new.* values in the UPDATE.
-**
-** <dt>Local UPDATE<dd>
-**   This may conflict with a remote UPDATE or DELETE. If it conflicts
-**   with a DELETE, and the conflict resolution was OMIT, then the update
-**   is changed into an INSERT. Any undefined values in the new.* record
-**   from the update change are filled in using the old.* values from
-**   the conflicting DELETE. Or, if the conflict resolution was REPLACE,
-**   the UPDATE change is simply omitted from the rebased changeset.
-**
-**   If conflict is with a remote UPDATE and the resolution is OMIT, then
-**   the old.* values are rebased using the new.* values in the remote
-**   change. Or, if the resolution is REPLACE, then the change is copied
-**   into the rebased changeset with updates to columns also updated by
-**   the conflicting remote UPDATE removed. If this means no columns would 
-**   be updated, the change is omitted.
-** </dl>
-**
-** A local change may be rebased against multiple remote changes 
-** simultaneously. If a single key is modified by multiple remote 
-** changesets, they are combined as follows before the local changeset
-** is rebased:
-**
-** <ul>
-**    <li> If there has been one or more REPLACE resolutions on a
-**         key, it is rebased according to a REPLACE.
-**
-**    <li> If there have been no REPLACE resolutions on a key, then
-**         the local changeset is rebased according to the most recent
-**         of the OMIT resolutions.
-** </ul>
-**
-** Note that conflict resolutions from multiple remote changesets are 
-** combined on a per-field basis, not per-row. This means that in the 
-** case of multiple remote UPDATE operations, some fields of a single 
-** local change may be rebased for REPLACE while others are rebased for 
-** OMIT.
-**
-** In order to rebase a local changeset, the remote changeset must first
-** be applied to the local database using tdsqlite3changeset_apply_v2() and
-** the buffer of rebase information captured. Then:
-**
-** <ol>
-**   <li> An tdsqlite3_rebaser object is created by calling 
-**        tdsqlite3rebaser_create().
-**   <li> The new object is configured with the rebase buffer obtained from
-**        tdsqlite3changeset_apply_v2() by calling tdsqlite3rebaser_configure().
-**        If the local changeset is to be rebased against multiple remote
-**        changesets, then tdsqlite3rebaser_configure() should be called
-**        multiple times, in the same order that the multiple
-**        tdsqlite3changeset_apply_v2() calls were made.
-**   <li> Each local changeset is rebased by calling tdsqlite3rebaser_rebase().
-**   <li> The tdsqlite3_rebaser object is deleted by calling
-**        tdsqlite3rebaser_delete().
-** </ol>
-*/
-typedef struct tdsqlite3_rebaser tdsqlite3_rebaser;
-
-/*
-** CAPI3REF: Create a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Allocate a new changeset rebaser object. If successful, set (*ppNew) to
-** point to the new object and return SQLITE_OK. Otherwise, if an error
-** occurs, return an SQLite error code (e.g. SQLITE_NOMEM) and set (*ppNew) 
-** to NULL. 
-*/
-SQLITE_API int tdsqlite3rebaser_create(tdsqlite3_rebaser **ppNew);
-
-/*
-** CAPI3REF: Configure a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Configure the changeset rebaser object to rebase changesets according
-** to the conflict resolutions described by buffer pRebase (size nRebase
-** bytes), which must have been obtained from a previous call to
-** tdsqlite3changeset_apply_v2().
-*/
-SQLITE_API int tdsqlite3rebaser_configure(
-  tdsqlite3_rebaser*, 
-  int nRebase, const void *pRebase
-); 
-
-/*
-** CAPI3REF: Rebase a changeset
-** EXPERIMENTAL
-**
-** Argument pIn must point to a buffer containing a changeset nIn bytes
-** in size. This function allocates and populates a buffer with a copy
-** of the changeset rebased according to the configuration of the
-** rebaser object passed as the first argument. If successful, (*ppOut)
-** is set to point to the new buffer containing the rebased changeset and 
-** (*pnOut) to its size in bytes and SQLITE_OK returned. It is the
-** responsibility of the caller to eventually free the new buffer using
-** tdsqlite3_free(). Otherwise, if an error occurs, (*ppOut) and (*pnOut)
-** are set to zero and an SQLite error code returned.
-*/
-SQLITE_API int tdsqlite3rebaser_rebase(
-  tdsqlite3_rebaser*,
-  int nIn, const void *pIn, 
-  int *pnOut, void **ppOut 
-);
-
-/*
-** CAPI3REF: Delete a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Delete the changeset rebaser object and all associated resources. There
-** should be one call to this function for each successful invocation
-** of tdsqlite3rebaser_create().
-*/
-SQLITE_API void tdsqlite3rebaser_delete(tdsqlite3_rebaser *p); 
-
-/*
-** CAPI3REF: Streaming Versions of API functions.
-**
-** The six streaming API xxx_strm() functions serve similar purposes to the 
-** corresponding non-streaming API functions:
-**
-** <table border=1 style="margin-left:8ex;margin-right:8ex">
-**   <tr><th>Streaming function<th>Non-streaming equivalent</th>
-**   <tr><td>tdsqlite3changeset_apply_strm<td>[tdsqlite3changeset_apply] 
-**   <tr><td>tdsqlite3changeset_apply_strm_v2<td>[tdsqlite3changeset_apply_v2] 
-**   <tr><td>tdsqlite3changeset_concat_strm<td>[tdsqlite3changeset_concat] 
-**   <tr><td>tdsqlite3changeset_invert_strm<td>[tdsqlite3changeset_invert] 
-**   <tr><td>tdsqlite3changeset_start_strm<td>[tdsqlite3changeset_start] 
-**   <tr><td>tdsqlite3session_changeset_strm<td>[tdsqlite3session_changeset] 
-**   <tr><td>tdsqlite3session_patchset_strm<td>[tdsqlite3session_patchset] 
-** </table>
-**
-** Non-streaming functions that accept changesets (or patchsets) as input
-** require that the entire changeset be stored in a single buffer in memory. 
-** Similarly, those that return a changeset or patchset do so by returning 
-** a pointer to a single large buffer allocated using tdsqlite3_malloc(). 
-** Normally this is convenient. However, if an application running in a 
-** low-memory environment is required to handle very large changesets, the
-** large contiguous memory allocations required can become onerous.
-**
-** In order to avoid this problem, instead of a single large buffer, input
-** is passed to a streaming API functions by way of a callback function that
-** the sessions module invokes to incrementally request input data as it is
-** required. In all cases, a pair of API function parameters such as
-**
-**  <pre>
-**  &nbsp;     int nChangeset,
-**  &nbsp;     void *pChangeset,
-**  </pre>
-**
-** Is replaced by:
-**
-**  <pre>
-**  &nbsp;     int (*xInput)(void *pIn, void *pData, int *pnData),
-**  &nbsp;     void *pIn,
-**  </pre>
-**
-** Each time the xInput callback is invoked by the sessions module, the first
-** argument passed is a copy of the supplied pIn context pointer. The second 
-** argument, pData, points to a buffer (*pnData) bytes in size. Assuming no 
-** error occurs the xInput method should copy up to (*pnData) bytes of data 
-** into the buffer and set (*pnData) to the actual number of bytes copied 
-** before returning SQLITE_OK. If the input is completely exhausted, (*pnData) 
-** should be set to zero to indicate this. Or, if an error occurs, an SQLite 
-** error code should be returned. In all cases, if an xInput callback returns
-** an error, all processing is abandoned and the streaming API function
-** returns a copy of the error code to the caller.
-**
-** In the case of tdsqlite3changeset_start_strm(), the xInput callback may be
-** invoked by the sessions module at any point during the lifetime of the
-** iterator. If such an xInput callback returns an error, the iterator enters
-** an error state, whereby all subsequent calls to iterator functions 
-** immediately fail with the same error code as returned by xInput.
-**
-** Similarly, streaming API functions that return changesets (or patchsets)
-** return them in chunks by way of a callback function instead of via a
-** pointer to a single large buffer. In this case, a pair of parameters such
-** as:
-**
-**  <pre>
-**  &nbsp;     int *pnChangeset,
-**  &nbsp;     void **ppChangeset,
-**  </pre>
-**
-** Is replaced by:
-**
-**  <pre>
-**  &nbsp;     int (*xOutput)(void *pOut, const void *pData, int nData),
-**  &nbsp;     void *pOut
-**  </pre>
-**
-** The xOutput callback is invoked zero or more times to return data to
-** the application. The first parameter passed to each call is a copy of the
-** pOut pointer supplied by the application. The second parameter, pData,
-** points to a buffer nData bytes in size containing the chunk of output
-** data being returned. If the xOutput callback successfully processes the
-** supplied data, it should return SQLITE_OK to indicate success. Otherwise,
-** it should return some other SQLite error code. In this case processing
-** is immediately abandoned and the streaming API function returns a copy
-** of the xOutput error code to the application.
-**
-** The sessions module never invokes an xOutput callback with the third 
-** parameter set to a value less than or equal to zero. Other than this,
-** no guarantees are made as to the size of the chunks of data returned.
-*/
-SQLITE_API int tdsqlite3changeset_apply_strm(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
-  void *pIn,                                          /* First arg for xInput */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx                      /* First argument passed to xConflict */
-);
-SQLITE_API int tdsqlite3changeset_apply_v2_strm(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
-  void *pIn,                                          /* First arg for xInput */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase,
-  int flags
-);
-SQLITE_API int tdsqlite3changeset_concat_strm(
-  int (*xInputA)(void *pIn, void *pData, int *pnData),
-  void *pInA,
-  int (*xInputB)(void *pIn, void *pData, int *pnData),
-  void *pInB,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-SQLITE_API int tdsqlite3changeset_invert_strm(
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-SQLITE_API int tdsqlite3changeset_start_strm(
-  tdsqlite3_changeset_iter **pp,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn
-);
-SQLITE_API int tdsqlite3changeset_start_v2_strm(
-  tdsqlite3_changeset_iter **pp,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int flags
-);
-SQLITE_API int tdsqlite3session_changeset_strm(
-  tdsqlite3_session *pSession,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-SQLITE_API int tdsqlite3session_patchset_strm(
-  tdsqlite3_session *pSession,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-SQLITE_API int tdsqlite3changegroup_add_strm(tdsqlite3_changegroup*, 
-    int (*xInput)(void *pIn, void *pData, int *pnData),
-    void *pIn
-);
-SQLITE_API int tdsqlite3changegroup_output_strm(tdsqlite3_changegroup*,
-    int (*xOutput)(void *pOut, const void *pData, int nData), 
-    void *pOut
-);
-SQLITE_API int tdsqlite3rebaser_rebase_strm(
-  tdsqlite3_rebaser *pRebaser,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-
-/*
-** CAPI3REF: Configure global parameters
-**
-** The tdsqlite3session_config() interface is used to make global configuration
-** changes to the sessions module in order to tune it to the specific needs 
-** of the application.
-**
-** The tdsqlite3session_config() interface is not threadsafe. If it is invoked
-** while any other thread is inside any other sessions method then the
-** results are undefined. Furthermore, if it is invoked after any sessions
-** related objects have been created, the results are also undefined. 
-**
-** The first argument to the tdsqlite3session_config() function must be one
-** of the SQLITE_SESSION_CONFIG_XXX constants defined below. The 
-** interpretation of the (void*) value passed as the second parameter and
-** the effect of calling this function depends on the value of the first
-** parameter.
-**
-** <dl>
-** <dt>SQLITE_SESSION_CONFIG_STRMSIZE<dd>
-**    By default, the sessions module streaming interfaces attempt to input
-**    and output data in approximately 1 KiB chunks. This operand may be used
-**    to set and query the value of this configuration setting. The pointer
-**    passed as the second argument must point to a value of type (int).
-**    If this value is greater than 0, it is used as the new streaming data
-**    chunk size for both input and output. Before returning, the (int) value
-**    pointed to by pArg is set to the final value of the streaming interface
-**    chunk size.
-** </dl>
-**
-** This function returns SQLITE_OK if successful, or an SQLite error code
-** otherwise.
-*/
-SQLITE_API int tdsqlite3session_config(int op, void *pArg);
-
-/*
-** CAPI3REF: Values for tdsqlite3session_config().
-*/
-#define SQLITE_SESSION_CONFIG_STRMSIZE 1
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#ifdef __cplusplus
-}
-#endif
-
-#endif  /* !defined(__SQLITESESSION_H_) && defined(SQLITE_ENABLE_SESSION) */
-
-/******** End of tdsqlite3session.h *********/
-/******** Begin file fts5.h *********/
-/*
-** 2014 May 31
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** Interfaces to extend FTS5. Using the interfaces defined in this file, 
-** FTS5 may be extended with:
-**
-**     * custom tokenizers, and
-**     * custom auxiliary functions.
-*/
-
-
-#ifndef _FTS5_H
-#define _FTS5_H
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*************************************************************************
-** CUSTOM AUXILIARY FUNCTIONS
-**
-** Virtual table implementations may overload SQL functions by implementing
-** the tdsqlite3_module.xFindFunction() method.
-*/
-
-typedef struct Fts5ExtensionApi Fts5ExtensionApi;
-typedef struct Fts5Context Fts5Context;
-typedef struct Fts5PhraseIter Fts5PhraseIter;
-
-typedef void (*fts5_extension_function)(
-  const Fts5ExtensionApi *pApi,   /* API offered by current FTS version */
-  Fts5Context *pFts,              /* First arg to pass to pApi functions */
-  tdsqlite3_context *pCtx,          /* Context for returning result/error */
-  int nVal,                       /* Number of values in apVal[] array */
-  tdsqlite3_value **apVal           /* Array of trailing arguments */
-);
-
-struct Fts5PhraseIter {
-  const unsigned char *a;
-  const unsigned char *b;
-};
-
-/*
-** EXTENSION API FUNCTIONS
-**
-** xUserData(pFts):
-**   Return a copy of the context pointer the extension function was 
-**   registered with.
-**
-** xColumnTotalSize(pFts, iCol, pnToken):
-**   If parameter iCol is less than zero, set output variable *pnToken
-**   to the total number of tokens in the FTS5 table. Or, if iCol is
-**   non-negative but less than the number of columns in the table, return
-**   the total number of tokens in column iCol, considering all rows in 
-**   the FTS5 table.
-**
-**   If parameter iCol is greater than or equal to the number of columns
-**   in the table, SQLITE_RANGE is returned. Or, if an error occurs (e.g.
-**   an OOM condition or IO error), an appropriate SQLite error code is 
-**   returned.
-**
-** xColumnCount(pFts):
-**   Return the number of columns in the table.
-**
-** xColumnSize(pFts, iCol, pnToken):
-**   If parameter iCol is less than zero, set output variable *pnToken
-**   to the total number of tokens in the current row. Or, if iCol is
-**   non-negative but less than the number of columns in the table, set
-**   *pnToken to the number of tokens in column iCol of the current row.
-**
-**   If parameter iCol is greater than or equal to the number of columns
-**   in the table, SQLITE_RANGE is returned. Or, if an error occurs (e.g.
-**   an OOM condition or IO error), an appropriate SQLite error code is 
-**   returned.
-**
-**   This function may be quite inefficient if used with an FTS5 table
-**   created with the "columnsize=0" option.
-**
-** xColumnText:
-**   This function attempts to retrieve the text of column iCol of the
-**   current document. If successful, (*pz) is set to point to a buffer
-**   containing the text in utf-8 encoding, (*pn) is set to the size in bytes
-**   (not characters) of the buffer and SQLITE_OK is returned. Otherwise,
-**   if an error occurs, an SQLite error code is returned and the final values
-**   of (*pz) and (*pn) are undefined.
-**
-** xPhraseCount:
-**   Returns the number of phrases in the current query expression.
-**
-** xPhraseSize:
-**   Returns the number of tokens in phrase iPhrase of the query. Phrases
-**   are numbered starting from zero.
-**
-** xInstCount:
-**   Set *pnInst to the total number of occurrences of all phrases within
-**   the query within the current row. Return SQLITE_OK if successful, or
-**   an error code (i.e. SQLITE_NOMEM) if an error occurs.
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. If the FTS5 table is created 
-**   with either "detail=none" or "detail=column" and "content=" option 
-**   (i.e. if it is a contentless table), then this API always returns 0.
-**
-** xInst:
-**   Query for the details of phrase match iIdx within the current row.
-**   Phrase matches are numbered starting from zero, so the iIdx argument
-**   should be greater than or equal to zero and smaller than the value
-**   output by xInstCount().
-**
-**   Usually, output parameter *piPhrase is set to the phrase number, *piCol
-**   to the column in which it occurs and *piOff the token offset of the
-**   first token of the phrase. Returns SQLITE_OK if successful, or an error
-**   code (i.e. SQLITE_NOMEM) if an error occurs.
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. 
-**
-** xRowid:
-**   Returns the rowid of the current row.
-**
-** xTokenize:
-**   Tokenize text using the tokenizer belonging to the FTS5 table.
-**
-** xQueryPhrase(pFts5, iPhrase, pUserData, xCallback):
-**   This API function is used to query the FTS table for phrase iPhrase
-**   of the current query. Specifically, a query equivalent to:
-**
-**       ... FROM ftstable WHERE ftstable MATCH $p ORDER BY rowid
-**
-**   with $p set to a phrase equivalent to the phrase iPhrase of the
-**   current query is executed. Any column filter that applies to
-**   phrase iPhrase of the current query is included in $p. For each 
-**   row visited, the callback function passed as the fourth argument 
-**   is invoked. The context and API objects passed to the callback 
-**   function may be used to access the properties of each matched row.
-**   Invoking Api.xUserData() returns a copy of the pointer passed as 
-**   the third argument to pUserData.
-**
-**   If the callback function returns any value other than SQLITE_OK, the
-**   query is abandoned and the xQueryPhrase function returns immediately.
-**   If the returned value is SQLITE_DONE, xQueryPhrase returns SQLITE_OK.
-**   Otherwise, the error code is propagated upwards.
-**
-**   If the query runs to completion without incident, SQLITE_OK is returned.
-**   Or, if some error occurs before the query completes or is aborted by
-**   the callback, an SQLite error code is returned.
-**
-**
-** xSetAuxdata(pFts5, pAux, xDelete)
-**
-**   Save the pointer passed as the second argument as the extension function's 
-**   "auxiliary data". The pointer may then be retrieved by the current or any
-**   future invocation of the same fts5 extension function made as part of
-**   the same MATCH query using the xGetAuxdata() API.
-**
-**   Each extension function is allocated a single auxiliary data slot for
-**   each FTS query (MATCH expression). If the extension function is invoked 
-**   more than once for a single FTS query, then all invocations share a 
-**   single auxiliary data context.
-**
-**   If there is already an auxiliary data pointer when this function is
-**   invoked, then it is replaced by the new pointer. If an xDelete callback
-**   was specified along with the original pointer, it is invoked at this
-**   point.
-**
-**   The xDelete callback, if one is specified, is also invoked on the
-**   auxiliary data pointer after the FTS5 query has finished.
-**
-**   If an error (e.g. an OOM condition) occurs within this function,
-**   the auxiliary data is set to NULL and an error code returned. If the
-**   xDelete parameter was not NULL, it is invoked on the auxiliary data
-**   pointer before returning.
-**
-**
-** xGetAuxdata(pFts5, bClear)
-**
-**   Returns the current auxiliary data pointer for the fts5 extension 
-**   function. See the xSetAuxdata() method for details.
-**
-**   If the bClear argument is non-zero, then the auxiliary data is cleared
-**   (set to NULL) before this function returns. In this case the xDelete,
-**   if any, is not invoked.
-**
-**
-** xRowCount(pFts5, pnRow)
-**
-**   This function is used to retrieve the total number of rows in the table.
-**   In other words, the same value that would be returned by:
-**
-**        SELECT count(*) FROM ftstable;
-**
-** xPhraseFirst()
-**   This function is used, along with type Fts5PhraseIter and the xPhraseNext
-**   method, to iterate through all instances of a single query phrase within
-**   the current row. This is the same information as is accessible via the
-**   xInstCount/xInst APIs. While the xInstCount/xInst APIs are more convenient
-**   to use, this API may be faster under some circumstances. To iterate 
-**   through instances of phrase iPhrase, use the following code:
-**
-**       Fts5PhraseIter iter;
-**       int iCol, iOff;
-**       for(pApi->xPhraseFirst(pFts, iPhrase, &iter, &iCol, &iOff);
-**           iCol>=0;
-**           pApi->xPhraseNext(pFts, &iter, &iCol, &iOff)
-**       ){
-**         // An instance of phrase iPhrase at offset iOff of column iCol
-**       }
-**
-**   The Fts5PhraseIter structure is defined above. Applications should not
-**   modify this structure directly - it should only be used as shown above
-**   with the xPhraseFirst() and xPhraseNext() API methods (and by
-**   xPhraseFirstColumn() and xPhraseNextColumn() as illustrated below).
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" or "detail=column" option. If the FTS5 table is created 
-**   with either "detail=none" or "detail=column" and "content=" option 
-**   (i.e. if it is a contentless table), then this API always iterates
-**   through an empty set (all calls to xPhraseFirst() set iCol to -1).
-**
-** xPhraseNext()
-**   See xPhraseFirst above.
-**
-** xPhraseFirstColumn()
-**   This function and xPhraseNextColumn() are similar to the xPhraseFirst()
-**   and xPhraseNext() APIs described above. The difference is that instead
-**   of iterating through all instances of a phrase in the current row, these
-**   APIs are used to iterate through the set of columns in the current row
-**   that contain one or more instances of a specified phrase. For example:
-**
-**       Fts5PhraseIter iter;
-**       int iCol;
-**       for(pApi->xPhraseFirstColumn(pFts, iPhrase, &iter, &iCol);
-**           iCol>=0;
-**           pApi->xPhraseNextColumn(pFts, &iter, &iCol)
-**       ){
-**         // Column iCol contains at least one instance of phrase iPhrase
-**       }
-**
-**   This API can be quite slow if used with an FTS5 table created with the
-**   "detail=none" option. If the FTS5 table is created with either 
-**   "detail=none" "content=" option (i.e. if it is a contentless table), 
-**   then this API always iterates through an empty set (all calls to 
-**   xPhraseFirstColumn() set iCol to -1).
-**
-**   The information accessed using this API and its companion
-**   xPhraseFirstColumn() may also be obtained using xPhraseFirst/xPhraseNext
-**   (or xInst/xInstCount). The chief advantage of this API is that it is
-**   significantly more efficient than those alternatives when used with
-**   "detail=column" tables.  
-**
-** xPhraseNextColumn()
-**   See xPhraseFirstColumn above.
-*/
-struct Fts5ExtensionApi {
-  int iVersion;                   /* Currently always set to 3 */
-
-  void *(*xUserData)(Fts5Context*);
-
-  int (*xColumnCount)(Fts5Context*);
-  int (*xRowCount)(Fts5Context*, tdsqlite3_int64 *pnRow);
-  int (*xColumnTotalSize)(Fts5Context*, int iCol, tdsqlite3_int64 *pnToken);
-
-  int (*xTokenize)(Fts5Context*, 
-    const char *pText, int nText, /* Text to tokenize */
-    void *pCtx,                   /* Context passed to xToken() */
-    int (*xToken)(void*, int, const char*, int, int, int)       /* Callback */
-  );
-
-  int (*xPhraseCount)(Fts5Context*);
-  int (*xPhraseSize)(Fts5Context*, int iPhrase);
-
-  int (*xInstCount)(Fts5Context*, int *pnInst);
-  int (*xInst)(Fts5Context*, int iIdx, int *piPhrase, int *piCol, int *piOff);
-
-  tdsqlite3_int64 (*xRowid)(Fts5Context*);
-  int (*xColumnText)(Fts5Context*, int iCol, const char **pz, int *pn);
-  int (*xColumnSize)(Fts5Context*, int iCol, int *pnToken);
-
-  int (*xQueryPhrase)(Fts5Context*, int iPhrase, void *pUserData,
-    int(*)(const Fts5ExtensionApi*,Fts5Context*,void*)
-  );
-  int (*xSetAuxdata)(Fts5Context*, void *pAux, void(*xDelete)(void*));
-  void *(*xGetAuxdata)(Fts5Context*, int bClear);
-
-  int (*xPhraseFirst)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*, int*);
-  void (*xPhraseNext)(Fts5Context*, Fts5PhraseIter*, int *piCol, int *piOff);
-
-  int (*xPhraseFirstColumn)(Fts5Context*, int iPhrase, Fts5PhraseIter*, int*);
-  void (*xPhraseNextColumn)(Fts5Context*, Fts5PhraseIter*, int *piCol);
-};
-
-/* 
-** CUSTOM AUXILIARY FUNCTIONS
-*************************************************************************/
-
-/*************************************************************************
-** CUSTOM TOKENIZERS
-**
-** Applications may also register custom tokenizer types. A tokenizer 
-** is registered by providing fts5 with a populated instance of the 
-** following structure. All structure methods must be defined, setting
-** any member of the fts5_tokenizer struct to NULL leads to undefined
-** behaviour. The structure methods are expected to function as follows:
-**
-** xCreate:
-**   This function is used to allocate and initialize a tokenizer instance.
-**   A tokenizer instance is required to actually tokenize text.
-**
-**   The first argument passed to this function is a copy of the (void*)
-**   pointer provided by the application when the fts5_tokenizer object
-**   was registered with FTS5 (the third argument to xCreateTokenizer()). 
-**   The second and third arguments are an array of nul-terminated strings
-**   containing the tokenizer arguments, if any, specified following the
-**   tokenizer name as part of the CREATE VIRTUAL TABLE statement used
-**   to create the FTS5 table.
-**
-**   The final argument is an output variable. If successful, (*ppOut) 
-**   should be set to point to the new tokenizer handle and SQLITE_OK
-**   returned. If an error occurs, some value other than SQLITE_OK should
-**   be returned. In this case, fts5 assumes that the final value of *ppOut 
-**   is undefined.
-**
-** xDelete:
-**   This function is invoked to delete a tokenizer handle previously
-**   allocated using xCreate(). Fts5 guarantees that this function will
-**   be invoked exactly once for each successful call to xCreate().
-**
-** xTokenize:
-**   This function is expected to tokenize the nText byte string indicated 
-**   by argument pText. pText may or may not be nul-terminated. The first
-**   argument passed to this function is a pointer to an Fts5Tokenizer object
-**   returned by an earlier call to xCreate().
-**
-**   The second argument indicates the reason that FTS5 is requesting
-**   tokenization of the supplied text. This is always one of the following
-**   four values:
-**
-**   <ul><li> <b>FTS5_TOKENIZE_DOCUMENT</b> - A document is being inserted into
-**            or removed from the FTS table. The tokenizer is being invoked to
-**            determine the set of tokens to add to (or delete from) the
-**            FTS index.
-**
-**       <li> <b>FTS5_TOKENIZE_QUERY</b> - A MATCH query is being executed 
-**            against the FTS index. The tokenizer is being called to tokenize 
-**            a bareword or quoted string specified as part of the query.
-**
-**       <li> <b>(FTS5_TOKENIZE_QUERY | FTS5_TOKENIZE_PREFIX)</b> - Same as
-**            FTS5_TOKENIZE_QUERY, except that the bareword or quoted string is
-**            followed by a "*" character, indicating that the last token
-**            returned by the tokenizer will be treated as a token prefix.
-**
-**       <li> <b>FTS5_TOKENIZE_AUX</b> - The tokenizer is being invoked to 
-**            satisfy an fts5_api.xTokenize() request made by an auxiliary
-**            function. Or an fts5_api.xColumnSize() request made by the same
-**            on a columnsize=0 database.  
-**   </ul>
-**
-**   For each token in the input string, the supplied callback xToken() must
-**   be invoked. The first argument to it should be a copy of the pointer
-**   passed as the second argument to xTokenize(). The third and fourth
-**   arguments are a pointer to a buffer containing the token text, and the
-**   size of the token in bytes. The 4th and 5th arguments are the byte offsets
-**   of the first byte of and first byte immediately following the text from
-**   which the token is derived within the input.
-**
-**   The second argument passed to the xToken() callback ("tflags") should
-**   normally be set to 0. The exception is if the tokenizer supports 
-**   synonyms. In this case see the discussion below for details.
-**
-**   FTS5 assumes the xToken() callback is invoked for each token in the 
-**   order that they occur within the input text.
-**
-**   If an xToken() callback returns any value other than SQLITE_OK, then
-**   the tokenization should be abandoned and the xTokenize() method should
-**   immediately return a copy of the xToken() return value. Or, if the
-**   input buffer is exhausted, xTokenize() should return SQLITE_OK. Finally,
-**   if an error occurs with the xTokenize() implementation itself, it
-**   may abandon the tokenization and return any error code other than
-**   SQLITE_OK or SQLITE_DONE.
-**
-** SYNONYM SUPPORT
-**
-**   Custom tokenizers may also support synonyms. Consider a case in which a
-**   user wishes to query for a phrase such as "first place". Using the 
-**   built-in tokenizers, the FTS5 query 'first + place' will match instances
-**   of "first place" within the document set, but not alternative forms
-**   such as "1st place". In some applications, it would be better to match
-**   all instances of "first place" or "1st place" regardless of which form
-**   the user specified in the MATCH query text.
-**
-**   There are several ways to approach this in FTS5:
-**
-**   <ol><li> By mapping all synonyms to a single token. In this case, using
-**            the above example, this means that the tokenizer returns the
-**            same token for inputs "first" and "1st". Say that token is in
-**            fact "first", so that when the user inserts the document "I won
-**            1st place" entries are added to the index for tokens "i", "won",
-**            "first" and "place". If the user then queries for '1st + place',
-**            the tokenizer substitutes "first" for "1st" and the query works
-**            as expected.
-**
-**       <li> By querying the index for all synonyms of each query term
-**            separately. In this case, when tokenizing query text, the
-**            tokenizer may provide multiple synonyms for a single term 
-**            within the document. FTS5 then queries the index for each 
-**            synonym individually. For example, faced with the query:
-**
-**   <codeblock>
-**     ... MATCH 'first place'</codeblock>
-**
-**            the tokenizer offers both "1st" and "first" as synonyms for the
-**            first token in the MATCH query and FTS5 effectively runs a query 
-**            similar to:
-**
-**   <codeblock>
-**     ... MATCH '(first OR 1st) place'</codeblock>
-**
-**            except that, for the purposes of auxiliary functions, the query
-**            still appears to contain just two phrases - "(first OR 1st)" 
-**            being treated as a single phrase.
-**
-**       <li> By adding multiple synonyms for a single term to the FTS index.
-**            Using this method, when tokenizing document text, the tokenizer
-**            provides multiple synonyms for each token. So that when a 
-**            document such as "I won first place" is tokenized, entries are
-**            added to the FTS index for "i", "won", "first", "1st" and
-**            "place".
-**
-**            This way, even if the tokenizer does not provide synonyms
-**            when tokenizing query text (it should not - to do so would be
-**            inefficient), it doesn't matter if the user queries for 
-**            'first + place' or '1st + place', as there are entries in the
-**            FTS index corresponding to both forms of the first token.
-**   </ol>
-**
-**   Whether it is parsing document or query text, any call to xToken that
-**   specifies a <i>tflags</i> argument with the FTS5_TOKEN_COLOCATED bit
-**   is considered to supply a synonym for the previous token. For example,
-**   when parsing the document "I won first place", a tokenizer that supports
-**   synonyms would call xToken() 5 times, as follows:
-**
-**   <codeblock>
-**       xToken(pCtx, 0, "i",                      1,  0,  1);
-**       xToken(pCtx, 0, "won",                    3,  2,  5);
-**       xToken(pCtx, 0, "first",                  5,  6, 11);
-**       xToken(pCtx, FTS5_TOKEN_COLOCATED, "1st", 3,  6, 11);
-**       xToken(pCtx, 0, "place",                  5, 12, 17);
-**</codeblock>
-**
-**   It is an error to specify the FTS5_TOKEN_COLOCATED flag the first time
-**   xToken() is called. Multiple synonyms may be specified for a single token
-**   by making multiple calls to xToken(FTS5_TOKEN_COLOCATED) in sequence. 
-**   There is no limit to the number of synonyms that may be provided for a
-**   single token.
-**
-**   In many cases, method (1) above is the best approach. It does not add 
-**   extra data to the FTS index or require FTS5 to query for multiple terms,
-**   so it is efficient in terms of disk space and query speed. However, it
-**   does not support prefix queries very well. If, as suggested above, the
-**   token "first" is substituted for "1st" by the tokenizer, then the query:
-**
-**   <codeblock>
-**     ... MATCH '1s*'</codeblock>
-**
-**   will not match documents that contain the token "1st" (as the tokenizer
-**   will probably not map "1s" to any prefix of "first").
-**
-**   For full prefix support, method (3) may be preferred. In this case, 
-**   because the index contains entries for both "first" and "1st", prefix
-**   queries such as 'fi*' or '1s*' will match correctly. However, because
-**   extra entries are added to the FTS index, this method uses more space
-**   within the database.
-**
-**   Method (2) offers a midpoint between (1) and (3). Using this method,
-**   a query such as '1s*' will match documents that contain the literal 
-**   token "1st", but not "first" (assuming the tokenizer is not able to
-**   provide synonyms for prefixes). However, a non-prefix query like '1st'
-**   will match against "1st" and "first". This method does not require
-**   extra disk space, as no extra entries are added to the FTS index. 
-**   On the other hand, it may require more CPU cycles to run MATCH queries,
-**   as separate queries of the FTS index are required for each synonym.
-**
-**   When using methods (2) or (3), it is important that the tokenizer only
-**   provide synonyms when tokenizing document text (method (2)) or query
-**   text (method (3)), not both. Doing so will not cause any errors, but is
-**   inefficient.
-*/
-typedef struct Fts5Tokenizer Fts5Tokenizer;
-typedef struct fts5_tokenizer fts5_tokenizer;
-struct fts5_tokenizer {
-  int (*xCreate)(void*, const char **azArg, int nArg, Fts5Tokenizer **ppOut);
-  void (*xDelete)(Fts5Tokenizer*);
-  int (*xTokenize)(Fts5Tokenizer*, 
-      void *pCtx,
-      int flags,            /* Mask of FTS5_TOKENIZE_* flags */
-      const char *pText, int nText, 
-      int (*xToken)(
-        void *pCtx,         /* Copy of 2nd argument to xTokenize() */
-        int tflags,         /* Mask of FTS5_TOKEN_* flags */
-        const char *pToken, /* Pointer to buffer containing token */
-        int nToken,         /* Size of token in bytes */
-        int iStart,         /* Byte offset of token within input text */
-        int iEnd            /* Byte offset of end of token within input text */
-      )
-  );
-};
-
-/* Flags that may be passed as the third argument to xTokenize() */
-#define FTS5_TOKENIZE_QUERY     0x0001
-#define FTS5_TOKENIZE_PREFIX    0x0002
-#define FTS5_TOKENIZE_DOCUMENT  0x0004
-#define FTS5_TOKENIZE_AUX       0x0008
-
-/* Flags that may be passed by the tokenizer implementation back to FTS5
-** as the third argument to the supplied xToken callback. */
-#define FTS5_TOKEN_COLOCATED    0x0001      /* Same position as prev. token */
-
-/*
-** END OF CUSTOM TOKENIZERS
-*************************************************************************/
-
-/*************************************************************************
-** FTS5 EXTENSION REGISTRATION API
-*/
-typedef struct fts5_api fts5_api;
-struct fts5_api {
-  int iVersion;                   /* Currently always set to 2 */
-
-  /* Create a new tokenizer */
-  int (*xCreateTokenizer)(
-    fts5_api *pApi,
-    const char *zName,
-    void *pContext,
-    fts5_tokenizer *pTokenizer,
-    void (*xDestroy)(void*)
-  );
-
-  /* Find an existing tokenizer */
-  int (*xFindTokenizer)(
-    fts5_api *pApi,
-    const char *zName,
-    void **ppContext,
-    fts5_tokenizer *pTokenizer
-  );
-
-  /* Create a new auxiliary function */
-  int (*xCreateFunction)(
-    fts5_api *pApi,
-    const char *zName,
-    void *pContext,
-    fts5_extension_function xFunction,
-    void (*xDestroy)(void*)
-  );
-};
-
-/*
-** END OF REGISTRATION API
-*************************************************************************/
-
-#ifdef __cplusplus
-}  /* end of the 'extern "C"' block */
-#endif
-
-#endif /* _FTS5_H */
-
-/******** End of fts5.h *********/
diff --git a/third-party/td/td/sqlite/sqlite/sqlite3ext.h b/third-party/td/td/sqlite/sqlite/sqlite3ext.h
deleted file mode 100644
index 1b5d136d58..0000000000
--- a/third-party/td/td/sqlite/sqlite/sqlite3ext.h
+++ /dev/null
@@ -1,650 +0,0 @@
-/*
-** 2006 June 7
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This header file defines the SQLite interface for use by
-** shared libraries that want to be imported as extensions into
-** an SQLite instance.  Shared libraries that intend to be loaded
-** as extensions by SQLite should #include this file instead of 
-** sqlite3.h.
-*/
-#ifndef SQLITE3EXT_H
-#define SQLITE3EXT_H
-#include "sqlite3.h"
-
-/*
-** The following structure holds pointers to all of the SQLite API
-** routines.
-**
-** WARNING:  In order to maintain backwards compatibility, add new
-** interfaces to the end of this structure only.  If you insert new
-** interfaces in the middle of this structure, then older different
-** versions of SQLite will not be able to load each other's shared
-** libraries!
-*/
-struct tdsqlite3_api_routines {
-  void * (*aggregate_context)(tdsqlite3_context*,int nBytes);
-  int  (*aggregate_count)(tdsqlite3_context*);
-  int  (*bind_blob)(tdsqlite3_stmt*,int,const void*,int n,void(*)(void*));
-  int  (*bind_double)(tdsqlite3_stmt*,int,double);
-  int  (*bind_int)(tdsqlite3_stmt*,int,int);
-  int  (*bind_int64)(tdsqlite3_stmt*,int,sqlite_int64);
-  int  (*bind_null)(tdsqlite3_stmt*,int);
-  int  (*bind_parameter_count)(tdsqlite3_stmt*);
-  int  (*bind_parameter_index)(tdsqlite3_stmt*,const char*zName);
-  const char * (*bind_parameter_name)(tdsqlite3_stmt*,int);
-  int  (*bind_text)(tdsqlite3_stmt*,int,const char*,int n,void(*)(void*));
-  int  (*bind_text16)(tdsqlite3_stmt*,int,const void*,int,void(*)(void*));
-  int  (*bind_value)(tdsqlite3_stmt*,int,const tdsqlite3_value*);
-  int  (*busy_handler)(tdsqlite3*,int(*)(void*,int),void*);
-  int  (*busy_timeout)(tdsqlite3*,int ms);
-  int  (*changes)(tdsqlite3*);
-  int  (*close)(tdsqlite3*);
-  int  (*collation_needed)(tdsqlite3*,void*,void(*)(void*,tdsqlite3*,
-                           int eTextRep,const char*));
-  int  (*collation_needed16)(tdsqlite3*,void*,void(*)(void*,tdsqlite3*,
-                             int eTextRep,const void*));
-  const void * (*column_blob)(tdsqlite3_stmt*,int iCol);
-  int  (*column_bytes)(tdsqlite3_stmt*,int iCol);
-  int  (*column_bytes16)(tdsqlite3_stmt*,int iCol);
-  int  (*column_count)(tdsqlite3_stmt*pStmt);
-  const char * (*column_database_name)(tdsqlite3_stmt*,int);
-  const void * (*column_database_name16)(tdsqlite3_stmt*,int);
-  const char * (*column_decltype)(tdsqlite3_stmt*,int i);
-  const void * (*column_decltype16)(tdsqlite3_stmt*,int);
-  double  (*column_double)(tdsqlite3_stmt*,int iCol);
-  int  (*column_int)(tdsqlite3_stmt*,int iCol);
-  sqlite_int64  (*column_int64)(tdsqlite3_stmt*,int iCol);
-  const char * (*column_name)(tdsqlite3_stmt*,int);
-  const void * (*column_name16)(tdsqlite3_stmt*,int);
-  const char * (*column_origin_name)(tdsqlite3_stmt*,int);
-  const void * (*column_origin_name16)(tdsqlite3_stmt*,int);
-  const char * (*column_table_name)(tdsqlite3_stmt*,int);
-  const void * (*column_table_name16)(tdsqlite3_stmt*,int);
-  const unsigned char * (*column_text)(tdsqlite3_stmt*,int iCol);
-  const void * (*column_text16)(tdsqlite3_stmt*,int iCol);
-  int  (*column_type)(tdsqlite3_stmt*,int iCol);
-  tdsqlite3_value* (*column_value)(tdsqlite3_stmt*,int iCol);
-  void * (*commit_hook)(tdsqlite3*,int(*)(void*),void*);
-  int  (*complete)(const char*sql);
-  int  (*complete16)(const void*sql);
-  int  (*create_collation)(tdsqlite3*,const char*,int,void*,
-                           int(*)(void*,int,const void*,int,const void*));
-  int  (*create_collation16)(tdsqlite3*,const void*,int,void*,
-                             int(*)(void*,int,const void*,int,const void*));
-  int  (*create_function)(tdsqlite3*,const char*,int,int,void*,
-                          void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-                          void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-                          void (*xFinal)(tdsqlite3_context*));
-  int  (*create_function16)(tdsqlite3*,const void*,int,int,void*,
-                            void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xFinal)(tdsqlite3_context*));
-  int (*create_module)(tdsqlite3*,const char*,const tdsqlite3_module*,void*);
-  int  (*data_count)(tdsqlite3_stmt*pStmt);
-  tdsqlite3 * (*db_handle)(tdsqlite3_stmt*);
-  int (*declare_vtab)(tdsqlite3*,const char*);
-  int  (*enable_shared_cache)(int);
-  int  (*errcode)(tdsqlite3*db);
-  const char * (*errmsg)(tdsqlite3*);
-  const void * (*errmsg16)(tdsqlite3*);
-  int  (*exec)(tdsqlite3*,const char*,tdsqlite3_callback,void*,char**);
-  int  (*expired)(tdsqlite3_stmt*);
-  int  (*finalize)(tdsqlite3_stmt*pStmt);
-  void  (*free)(void*);
-  void  (*free_table)(char**result);
-  int  (*get_autocommit)(tdsqlite3*);
-  void * (*get_auxdata)(tdsqlite3_context*,int);
-  int  (*get_table)(tdsqlite3*,const char*,char***,int*,int*,char**);
-  int  (*global_recover)(void);
-  void  (*interruptx)(tdsqlite3*);
-  sqlite_int64  (*last_insert_rowid)(tdsqlite3*);
-  const char * (*libversion)(void);
-  int  (*libversion_number)(void);
-  void *(*malloc)(int);
-  char * (*mprintf)(const char*,...);
-  int  (*open)(const char*,tdsqlite3**);
-  int  (*open16)(const void*,tdsqlite3**);
-  int  (*prepare)(tdsqlite3*,const char*,int,tdsqlite3_stmt**,const char**);
-  int  (*prepare16)(tdsqlite3*,const void*,int,tdsqlite3_stmt**,const void**);
-  void * (*profile)(tdsqlite3*,void(*)(void*,const char*,sqlite_uint64),void*);
-  void  (*progress_handler)(tdsqlite3*,int,int(*)(void*),void*);
-  void *(*realloc)(void*,int);
-  int  (*reset)(tdsqlite3_stmt*pStmt);
-  void  (*result_blob)(tdsqlite3_context*,const void*,int,void(*)(void*));
-  void  (*result_double)(tdsqlite3_context*,double);
-  void  (*result_error)(tdsqlite3_context*,const char*,int);
-  void  (*result_error16)(tdsqlite3_context*,const void*,int);
-  void  (*result_int)(tdsqlite3_context*,int);
-  void  (*result_int64)(tdsqlite3_context*,sqlite_int64);
-  void  (*result_null)(tdsqlite3_context*);
-  void  (*result_text)(tdsqlite3_context*,const char*,int,void(*)(void*));
-  void  (*result_text16)(tdsqlite3_context*,const void*,int,void(*)(void*));
-  void  (*result_text16be)(tdsqlite3_context*,const void*,int,void(*)(void*));
-  void  (*result_text16le)(tdsqlite3_context*,const void*,int,void(*)(void*));
-  void  (*result_value)(tdsqlite3_context*,tdsqlite3_value*);
-  void * (*rollback_hook)(tdsqlite3*,void(*)(void*),void*);
-  int  (*set_authorizer)(tdsqlite3*,int(*)(void*,int,const char*,const char*,
-                         const char*,const char*),void*);
-  void  (*set_auxdata)(tdsqlite3_context*,int,void*,void (*)(void*));
-  char * (*xsnprintf)(int,char*,const char*,...);
-  int  (*step)(tdsqlite3_stmt*);
-  int  (*table_column_metadata)(tdsqlite3*,const char*,const char*,const char*,
-                                char const**,char const**,int*,int*,int*);
-  void  (*thread_cleanup)(void);
-  int  (*total_changes)(tdsqlite3*);
-  void * (*trace)(tdsqlite3*,void(*xTrace)(void*,const char*),void*);
-  int  (*transfer_bindings)(tdsqlite3_stmt*,tdsqlite3_stmt*);
-  void * (*update_hook)(tdsqlite3*,void(*)(void*,int ,char const*,char const*,
-                                         sqlite_int64),void*);
-  void * (*user_data)(tdsqlite3_context*);
-  const void * (*value_blob)(tdsqlite3_value*);
-  int  (*value_bytes)(tdsqlite3_value*);
-  int  (*value_bytes16)(tdsqlite3_value*);
-  double  (*value_double)(tdsqlite3_value*);
-  int  (*value_int)(tdsqlite3_value*);
-  sqlite_int64  (*value_int64)(tdsqlite3_value*);
-  int  (*value_numeric_type)(tdsqlite3_value*);
-  const unsigned char * (*value_text)(tdsqlite3_value*);
-  const void * (*value_text16)(tdsqlite3_value*);
-  const void * (*value_text16be)(tdsqlite3_value*);
-  const void * (*value_text16le)(tdsqlite3_value*);
-  int  (*value_type)(tdsqlite3_value*);
-  char *(*vmprintf)(const char*,va_list);
-  /* Added ??? */
-  int (*overload_function)(tdsqlite3*, const char *zFuncName, int nArg);
-  /* Added by 3.3.13 */
-  int (*prepare_v2)(tdsqlite3*,const char*,int,tdsqlite3_stmt**,const char**);
-  int (*prepare16_v2)(tdsqlite3*,const void*,int,tdsqlite3_stmt**,const void**);
-  int (*clear_bindings)(tdsqlite3_stmt*);
-  /* Added by 3.4.1 */
-  int (*create_module_v2)(tdsqlite3*,const char*,const tdsqlite3_module*,void*,
-                          void (*xDestroy)(void *));
-  /* Added by 3.5.0 */
-  int (*bind_zeroblob)(tdsqlite3_stmt*,int,int);
-  int (*blob_bytes)(tdsqlite3_blob*);
-  int (*blob_close)(tdsqlite3_blob*);
-  int (*blob_open)(tdsqlite3*,const char*,const char*,const char*,tdsqlite3_int64,
-                   int,tdsqlite3_blob**);
-  int (*blob_read)(tdsqlite3_blob*,void*,int,int);
-  int (*blob_write)(tdsqlite3_blob*,const void*,int,int);
-  int (*create_collation_v2)(tdsqlite3*,const char*,int,void*,
-                             int(*)(void*,int,const void*,int,const void*),
-                             void(*)(void*));
-  int (*file_control)(tdsqlite3*,const char*,int,void*);
-  tdsqlite3_int64 (*memory_highwater)(int);
-  tdsqlite3_int64 (*memory_used)(void);
-  tdsqlite3_mutex *(*mutex_alloc)(int);
-  void (*mutex_enter)(tdsqlite3_mutex*);
-  void (*mutex_free)(tdsqlite3_mutex*);
-  void (*mutex_leave)(tdsqlite3_mutex*);
-  int (*mutex_try)(tdsqlite3_mutex*);
-  int (*open_v2)(const char*,tdsqlite3**,int,const char*);
-  int (*release_memory)(int);
-  void (*result_error_nomem)(tdsqlite3_context*);
-  void (*result_error_toobig)(tdsqlite3_context*);
-  int (*sleep)(int);
-  void (*soft_heap_limit)(int);
-  tdsqlite3_vfs *(*vfs_find)(const char*);
-  int (*vfs_register)(tdsqlite3_vfs*,int);
-  int (*vfs_unregister)(tdsqlite3_vfs*);
-  int (*xthreadsafe)(void);
-  void (*result_zeroblob)(tdsqlite3_context*,int);
-  void (*result_error_code)(tdsqlite3_context*,int);
-  int (*test_control)(int, ...);
-  void (*randomness)(int,void*);
-  tdsqlite3 *(*context_db_handle)(tdsqlite3_context*);
-  int (*extended_result_codes)(tdsqlite3*,int);
-  int (*limit)(tdsqlite3*,int,int);
-  tdsqlite3_stmt *(*next_stmt)(tdsqlite3*,tdsqlite3_stmt*);
-  const char *(*sql)(tdsqlite3_stmt*);
-  int (*status)(int,int*,int*,int);
-  int (*backup_finish)(tdsqlite3_backup*);
-  tdsqlite3_backup *(*backup_init)(tdsqlite3*,const char*,tdsqlite3*,const char*);
-  int (*backup_pagecount)(tdsqlite3_backup*);
-  int (*backup_remaining)(tdsqlite3_backup*);
-  int (*backup_step)(tdsqlite3_backup*,int);
-  const char *(*compileoption_get)(int);
-  int (*compileoption_used)(const char*);
-  int (*create_function_v2)(tdsqlite3*,const char*,int,int,void*,
-                            void (*xFunc)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xFinal)(tdsqlite3_context*),
-                            void(*xDestroy)(void*));
-  int (*db_config)(tdsqlite3*,int,...);
-  tdsqlite3_mutex *(*db_mutex)(tdsqlite3*);
-  int (*db_status)(tdsqlite3*,int,int*,int*,int);
-  int (*extended_errcode)(tdsqlite3*);
-  void (*log)(int,const char*,...);
-  tdsqlite3_int64 (*soft_heap_limit64)(tdsqlite3_int64);
-  const char *(*sourceid)(void);
-  int (*stmt_status)(tdsqlite3_stmt*,int,int);
-  int (*strnicmp)(const char*,const char*,int);
-  int (*unlock_notify)(tdsqlite3*,void(*)(void**,int),void*);
-  int (*wal_autocheckpoint)(tdsqlite3*,int);
-  int (*wal_checkpoint)(tdsqlite3*,const char*);
-  void *(*wal_hook)(tdsqlite3*,int(*)(void*,tdsqlite3*,const char*,int),void*);
-  int (*blob_reopen)(tdsqlite3_blob*,tdsqlite3_int64);
-  int (*vtab_config)(tdsqlite3*,int op,...);
-  int (*vtab_on_conflict)(tdsqlite3*);
-  /* Version 3.7.16 and later */
-  int (*close_v2)(tdsqlite3*);
-  const char *(*db_filename)(tdsqlite3*,const char*);
-  int (*db_readonly)(tdsqlite3*,const char*);
-  int (*db_release_memory)(tdsqlite3*);
-  const char *(*errstr)(int);
-  int (*stmt_busy)(tdsqlite3_stmt*);
-  int (*stmt_readonly)(tdsqlite3_stmt*);
-  int (*stricmp)(const char*,const char*);
-  int (*uri_boolean)(const char*,const char*,int);
-  tdsqlite3_int64 (*uri_int64)(const char*,const char*,tdsqlite3_int64);
-  const char *(*uri_parameter)(const char*,const char*);
-  char *(*xvsnprintf)(int,char*,const char*,va_list);
-  int (*wal_checkpoint_v2)(tdsqlite3*,const char*,int,int*,int*);
-  /* Version 3.8.7 and later */
-  int (*auto_extension)(void(*)(void));
-  int (*bind_blob64)(tdsqlite3_stmt*,int,const void*,tdsqlite3_uint64,
-                     void(*)(void*));
-  int (*bind_text64)(tdsqlite3_stmt*,int,const char*,tdsqlite3_uint64,
-                      void(*)(void*),unsigned char);
-  int (*cancel_auto_extension)(void(*)(void));
-  int (*load_extension)(tdsqlite3*,const char*,const char*,char**);
-  void *(*malloc64)(tdsqlite3_uint64);
-  tdsqlite3_uint64 (*msize)(void*);
-  void *(*realloc64)(void*,tdsqlite3_uint64);
-  void (*reset_auto_extension)(void);
-  void (*result_blob64)(tdsqlite3_context*,const void*,tdsqlite3_uint64,
-                        void(*)(void*));
-  void (*result_text64)(tdsqlite3_context*,const char*,tdsqlite3_uint64,
-                         void(*)(void*), unsigned char);
-  int (*strglob)(const char*,const char*);
-  /* Version 3.8.11 and later */
-  tdsqlite3_value *(*value_dup)(const tdsqlite3_value*);
-  void (*value_free)(tdsqlite3_value*);
-  int (*result_zeroblob64)(tdsqlite3_context*,tdsqlite3_uint64);
-  int (*bind_zeroblob64)(tdsqlite3_stmt*, int, tdsqlite3_uint64);
-  /* Version 3.9.0 and later */
-  unsigned int (*value_subtype)(tdsqlite3_value*);
-  void (*result_subtype)(tdsqlite3_context*,unsigned int);
-  /* Version 3.10.0 and later */
-  int (*status64)(int,tdsqlite3_int64*,tdsqlite3_int64*,int);
-  int (*strlike)(const char*,const char*,unsigned int);
-  int (*db_cacheflush)(tdsqlite3*);
-  /* Version 3.12.0 and later */
-  int (*system_errno)(tdsqlite3*);
-  /* Version 3.14.0 and later */
-  int (*trace_v2)(tdsqlite3*,unsigned,int(*)(unsigned,void*,void*,void*),void*);
-  char *(*expanded_sql)(tdsqlite3_stmt*);
-  /* Version 3.18.0 and later */
-  void (*set_last_insert_rowid)(tdsqlite3*,tdsqlite3_int64);
-  /* Version 3.20.0 and later */
-  int (*prepare_v3)(tdsqlite3*,const char*,int,unsigned int,
-                    tdsqlite3_stmt**,const char**);
-  int (*prepare16_v3)(tdsqlite3*,const void*,int,unsigned int,
-                      tdsqlite3_stmt**,const void**);
-  int (*bind_pointer)(tdsqlite3_stmt*,int,void*,const char*,void(*)(void*));
-  void (*result_pointer)(tdsqlite3_context*,void*,const char*,void(*)(void*));
-  void *(*value_pointer)(tdsqlite3_value*,const char*);
-  int (*vtab_nochange)(tdsqlite3_context*);
-  int (*value_nochange)(tdsqlite3_value*);
-  const char *(*vtab_collation)(tdsqlite3_index_info*,int);
-  /* Version 3.24.0 and later */
-  int (*keyword_count)(void);
-  int (*keyword_name)(int,const char**,int*);
-  int (*keyword_check)(const char*,int);
-  tdsqlite3_str *(*str_new)(tdsqlite3*);
-  char *(*str_finish)(tdsqlite3_str*);
-  void (*str_appendf)(tdsqlite3_str*, const char *zFormat, ...);
-  void (*str_vappendf)(tdsqlite3_str*, const char *zFormat, va_list);
-  void (*str_append)(tdsqlite3_str*, const char *zIn, int N);
-  void (*str_appendall)(tdsqlite3_str*, const char *zIn);
-  void (*str_appendchar)(tdsqlite3_str*, int N, char C);
-  void (*str_reset)(tdsqlite3_str*);
-  int (*str_errcode)(tdsqlite3_str*);
-  int (*str_length)(tdsqlite3_str*);
-  char *(*str_value)(tdsqlite3_str*);
-  /* Version 3.25.0 and later */
-  int (*create_window_function)(tdsqlite3*,const char*,int,int,void*,
-                            void (*xStep)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void (*xFinal)(tdsqlite3_context*),
-                            void (*xValue)(tdsqlite3_context*),
-                            void (*xInv)(tdsqlite3_context*,int,tdsqlite3_value**),
-                            void(*xDestroy)(void*));
-  /* Version 3.26.0 and later */
-  const char *(*normalized_sql)(tdsqlite3_stmt*);
-  /* Version 3.28.0 and later */
-  int (*stmt_isexplain)(tdsqlite3_stmt*);
-  int (*value_frombind)(tdsqlite3_value*);
-  /* Version 3.30.0 and later */
-  int (*drop_modules)(tdsqlite3*,const char**);
-  /* Version 3.31.0 and later */
-  tdsqlite3_int64 (*hard_heap_limit64)(tdsqlite3_int64);
-  const char *(*uri_key)(const char*,int);
-  const char *(*filename_database)(const char*);
-  const char *(*filename_journal)(const char*);
-  const char *(*filename_wal)(const char*);
-};
-
-/*
-** This is the function signature used for all extension entry points.  It
-** is also defined in the file "loadext.c".
-*/
-typedef int (*tdsqlite3_loadext_entry)(
-  tdsqlite3 *db,                       /* Handle to the database. */
-  char **pzErrMsg,                   /* Used to set error string on failure. */
-  const tdsqlite3_api_routines *pThunk /* Extension API function pointers. */
-);
-
-/*
-** The following macros redefine the API routines so that they are
-** redirected through the global tdsqlite3_api structure.
-**
-** This header file is also used by the loadext.c source file
-** (part of the main SQLite library - not an extension) so that
-** it can get access to the tdsqlite3_api_routines structure
-** definition.  But the main library does not want to redefine
-** the API.  So the redefinition macros are only valid if the
-** SQLITE_CORE macros is undefined.
-*/
-#if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
-#define tdsqlite3_aggregate_context      tdsqlite3_api->aggregate_context
-#ifndef SQLITE_OMIT_DEPRECATED
-#define tdsqlite3_aggregate_count        tdsqlite3_api->aggregate_count
-#endif
-#define tdsqlite3_bind_blob              tdsqlite3_api->bind_blob
-#define tdsqlite3_bind_double            tdsqlite3_api->bind_double
-#define tdsqlite3_bind_int               tdsqlite3_api->bind_int
-#define tdsqlite3_bind_int64             tdsqlite3_api->bind_int64
-#define tdsqlite3_bind_null              tdsqlite3_api->bind_null
-#define tdsqlite3_bind_parameter_count   tdsqlite3_api->bind_parameter_count
-#define tdsqlite3_bind_parameter_index   tdsqlite3_api->bind_parameter_index
-#define tdsqlite3_bind_parameter_name    tdsqlite3_api->bind_parameter_name
-#define tdsqlite3_bind_text              tdsqlite3_api->bind_text
-#define tdsqlite3_bind_text16            tdsqlite3_api->bind_text16
-#define tdsqlite3_bind_value             tdsqlite3_api->bind_value
-#define tdsqlite3_busy_handler           tdsqlite3_api->busy_handler
-#define tdsqlite3_busy_timeout           tdsqlite3_api->busy_timeout
-#define tdsqlite3_changes                tdsqlite3_api->changes
-#define tdsqlite3_close                  tdsqlite3_api->close
-#define tdsqlite3_collation_needed       tdsqlite3_api->collation_needed
-#define tdsqlite3_collation_needed16     tdsqlite3_api->collation_needed16
-#define tdsqlite3_column_blob            tdsqlite3_api->column_blob
-#define tdsqlite3_column_bytes           tdsqlite3_api->column_bytes
-#define tdsqlite3_column_bytes16         tdsqlite3_api->column_bytes16
-#define tdsqlite3_column_count           tdsqlite3_api->column_count
-#define tdsqlite3_column_database_name   tdsqlite3_api->column_database_name
-#define tdsqlite3_column_database_name16 tdsqlite3_api->column_database_name16
-#define tdsqlite3_column_decltype        tdsqlite3_api->column_decltype
-#define tdsqlite3_column_decltype16      tdsqlite3_api->column_decltype16
-#define tdsqlite3_column_double          tdsqlite3_api->column_double
-#define tdsqlite3_column_int             tdsqlite3_api->column_int
-#define tdsqlite3_column_int64           tdsqlite3_api->column_int64
-#define tdsqlite3_column_name            tdsqlite3_api->column_name
-#define tdsqlite3_column_name16          tdsqlite3_api->column_name16
-#define tdsqlite3_column_origin_name     tdsqlite3_api->column_origin_name
-#define tdsqlite3_column_origin_name16   tdsqlite3_api->column_origin_name16
-#define tdsqlite3_column_table_name      tdsqlite3_api->column_table_name
-#define tdsqlite3_column_table_name16    tdsqlite3_api->column_table_name16
-#define tdsqlite3_column_text            tdsqlite3_api->column_text
-#define tdsqlite3_column_text16          tdsqlite3_api->column_text16
-#define tdsqlite3_column_type            tdsqlite3_api->column_type
-#define tdsqlite3_column_value           tdsqlite3_api->column_value
-#define tdsqlite3_commit_hook            tdsqlite3_api->commit_hook
-#define tdsqlite3_complete               tdsqlite3_api->complete
-#define tdsqlite3_complete16             tdsqlite3_api->complete16
-#define tdsqlite3_create_collation       tdsqlite3_api->create_collation
-#define tdsqlite3_create_collation16     tdsqlite3_api->create_collation16
-#define tdsqlite3_create_function        tdsqlite3_api->create_function
-#define tdsqlite3_create_function16      tdsqlite3_api->create_function16
-#define tdsqlite3_create_module          tdsqlite3_api->create_module
-#define tdsqlite3_create_module_v2       tdsqlite3_api->create_module_v2
-#define tdsqlite3_data_count             tdsqlite3_api->data_count
-#define tdsqlite3_db_handle              tdsqlite3_api->db_handle
-#define tdsqlite3_declare_vtab           tdsqlite3_api->declare_vtab
-#define tdsqlite3_enable_shared_cache    tdsqlite3_api->enable_shared_cache
-#define tdsqlite3_errcode                tdsqlite3_api->errcode
-#define tdsqlite3_errmsg                 tdsqlite3_api->errmsg
-#define tdsqlite3_errmsg16               tdsqlite3_api->errmsg16
-#define tdsqlite3_exec                   tdsqlite3_api->exec
-#ifndef SQLITE_OMIT_DEPRECATED
-#define tdsqlite3_expired                tdsqlite3_api->expired
-#endif
-#define tdsqlite3_finalize               tdsqlite3_api->finalize
-#define tdsqlite3_free                   tdsqlite3_api->free
-#define tdsqlite3_free_table             tdsqlite3_api->free_table
-#define tdsqlite3_get_autocommit         tdsqlite3_api->get_autocommit
-#define tdsqlite3_get_auxdata            tdsqlite3_api->get_auxdata
-#define tdsqlite3_get_table              tdsqlite3_api->get_table
-#ifndef SQLITE_OMIT_DEPRECATED
-#define tdsqlite3_global_recover         tdsqlite3_api->global_recover
-#endif
-#define tdsqlite3_interrupt              tdsqlite3_api->interruptx
-#define tdsqlite3_last_insert_rowid      tdsqlite3_api->last_insert_rowid
-#define tdsqlite3_libversion             tdsqlite3_api->libversion
-#define tdsqlite3_libversion_number      tdsqlite3_api->libversion_number
-#define tdsqlite3_malloc                 tdsqlite3_api->malloc
-#define tdsqlite3_mprintf                tdsqlite3_api->mprintf
-#define tdsqlite3_open                   tdsqlite3_api->open
-#define tdsqlite3_open16                 tdsqlite3_api->open16
-#define tdsqlite3_prepare                tdsqlite3_api->prepare
-#define tdsqlite3_prepare16              tdsqlite3_api->prepare16
-#define tdsqlite3_prepare_v2             tdsqlite3_api->prepare_v2
-#define tdsqlite3_prepare16_v2           tdsqlite3_api->prepare16_v2
-#define tdsqlite3_profile                tdsqlite3_api->profile
-#define tdsqlite3_progress_handler       tdsqlite3_api->progress_handler
-#define tdsqlite3_realloc                tdsqlite3_api->realloc
-#define tdsqlite3_reset                  tdsqlite3_api->reset
-#define tdsqlite3_result_blob            tdsqlite3_api->result_blob
-#define tdsqlite3_result_double          tdsqlite3_api->result_double
-#define tdsqlite3_result_error           tdsqlite3_api->result_error
-#define tdsqlite3_result_error16         tdsqlite3_api->result_error16
-#define tdsqlite3_result_int             tdsqlite3_api->result_int
-#define tdsqlite3_result_int64           tdsqlite3_api->result_int64
-#define tdsqlite3_result_null            tdsqlite3_api->result_null
-#define tdsqlite3_result_text            tdsqlite3_api->result_text
-#define tdsqlite3_result_text16          tdsqlite3_api->result_text16
-#define tdsqlite3_result_text16be        tdsqlite3_api->result_text16be
-#define tdsqlite3_result_text16le        tdsqlite3_api->result_text16le
-#define tdsqlite3_result_value           tdsqlite3_api->result_value
-#define tdsqlite3_rollback_hook          tdsqlite3_api->rollback_hook
-#define tdsqlite3_set_authorizer         tdsqlite3_api->set_authorizer
-#define tdsqlite3_set_auxdata            tdsqlite3_api->set_auxdata
-#define tdsqlite3_snprintf               tdsqlite3_api->xsnprintf
-#define tdsqlite3_step                   tdsqlite3_api->step
-#define tdsqlite3_table_column_metadata  tdsqlite3_api->table_column_metadata
-#define tdsqlite3_thread_cleanup         tdsqlite3_api->thread_cleanup
-#define tdsqlite3_total_changes          tdsqlite3_api->total_changes
-#define tdsqlite3_trace                  tdsqlite3_api->trace
-#ifndef SQLITE_OMIT_DEPRECATED
-#define tdsqlite3_transfer_bindings      tdsqlite3_api->transfer_bindings
-#endif
-#define tdsqlite3_update_hook            tdsqlite3_api->update_hook
-#define tdsqlite3_user_data              tdsqlite3_api->user_data
-#define tdsqlite3_value_blob             tdsqlite3_api->value_blob
-#define tdsqlite3_value_bytes            tdsqlite3_api->value_bytes
-#define tdsqlite3_value_bytes16          tdsqlite3_api->value_bytes16
-#define tdsqlite3_value_double           tdsqlite3_api->value_double
-#define tdsqlite3_value_int              tdsqlite3_api->value_int
-#define tdsqlite3_value_int64            tdsqlite3_api->value_int64
-#define tdsqlite3_value_numeric_type     tdsqlite3_api->value_numeric_type
-#define tdsqlite3_value_text             tdsqlite3_api->value_text
-#define tdsqlite3_value_text16           tdsqlite3_api->value_text16
-#define tdsqlite3_value_text16be         tdsqlite3_api->value_text16be
-#define tdsqlite3_value_text16le         tdsqlite3_api->value_text16le
-#define tdsqlite3_value_type             tdsqlite3_api->value_type
-#define tdsqlite3_vmprintf               tdsqlite3_api->vmprintf
-#define tdsqlite3_vsnprintf              tdsqlite3_api->xvsnprintf
-#define tdsqlite3_overload_function      tdsqlite3_api->overload_function
-#define tdsqlite3_prepare_v2             tdsqlite3_api->prepare_v2
-#define tdsqlite3_prepare16_v2           tdsqlite3_api->prepare16_v2
-#define tdsqlite3_clear_bindings         tdsqlite3_api->clear_bindings
-#define tdsqlite3_bind_zeroblob          tdsqlite3_api->bind_zeroblob
-#define tdsqlite3_blob_bytes             tdsqlite3_api->blob_bytes
-#define tdsqlite3_blob_close             tdsqlite3_api->blob_close
-#define tdsqlite3_blob_open              tdsqlite3_api->blob_open
-#define tdsqlite3_blob_read              tdsqlite3_api->blob_read
-#define tdsqlite3_blob_write             tdsqlite3_api->blob_write
-#define tdsqlite3_create_collation_v2    tdsqlite3_api->create_collation_v2
-#define tdsqlite3_file_control           tdsqlite3_api->file_control
-#define tdsqlite3_memory_highwater       tdsqlite3_api->memory_highwater
-#define tdsqlite3_memory_used            tdsqlite3_api->memory_used
-#define tdsqlite3_mutex_alloc            tdsqlite3_api->mutex_alloc
-#define tdsqlite3_mutex_enter            tdsqlite3_api->mutex_enter
-#define tdsqlite3_mutex_free             tdsqlite3_api->mutex_free
-#define tdsqlite3_mutex_leave            tdsqlite3_api->mutex_leave
-#define tdsqlite3_mutex_try              tdsqlite3_api->mutex_try
-#define tdsqlite3_open_v2                tdsqlite3_api->open_v2
-#define tdsqlite3_release_memory         tdsqlite3_api->release_memory
-#define tdsqlite3_result_error_nomem     tdsqlite3_api->result_error_nomem
-#define tdsqlite3_result_error_toobig    tdsqlite3_api->result_error_toobig
-#define tdsqlite3_sleep                  tdsqlite3_api->sleep
-#define tdsqlite3_soft_heap_limit        tdsqlite3_api->soft_heap_limit
-#define tdsqlite3_vfs_find               tdsqlite3_api->vfs_find
-#define tdsqlite3_vfs_register           tdsqlite3_api->vfs_register
-#define tdsqlite3_vfs_unregister         tdsqlite3_api->vfs_unregister
-#define tdsqlite3_threadsafe             tdsqlite3_api->xthreadsafe
-#define tdsqlite3_result_zeroblob        tdsqlite3_api->result_zeroblob
-#define tdsqlite3_result_error_code      tdsqlite3_api->result_error_code
-#define tdsqlite3_test_control           tdsqlite3_api->test_control
-#define tdsqlite3_randomness             tdsqlite3_api->randomness
-#define tdsqlite3_context_db_handle      tdsqlite3_api->context_db_handle
-#define tdsqlite3_extended_result_codes  tdsqlite3_api->extended_result_codes
-#define tdsqlite3_limit                  tdsqlite3_api->limit
-#define tdsqlite3_next_stmt              tdsqlite3_api->next_stmt
-#define tdsqlite3_sql                    tdsqlite3_api->sql
-#define tdsqlite3_status                 tdsqlite3_api->status
-#define tdsqlite3_backup_finish          tdsqlite3_api->backup_finish
-#define tdsqlite3_backup_init            tdsqlite3_api->backup_init
-#define tdsqlite3_backup_pagecount       tdsqlite3_api->backup_pagecount
-#define tdsqlite3_backup_remaining       tdsqlite3_api->backup_remaining
-#define tdsqlite3_backup_step            tdsqlite3_api->backup_step
-#define tdsqlite3_compileoption_get      tdsqlite3_api->compileoption_get
-#define tdsqlite3_compileoption_used     tdsqlite3_api->compileoption_used
-#define tdsqlite3_create_function_v2     tdsqlite3_api->create_function_v2
-#define tdsqlite3_db_config              tdsqlite3_api->db_config
-#define tdsqlite3_db_mutex               tdsqlite3_api->db_mutex
-#define tdsqlite3_db_status              tdsqlite3_api->db_status
-#define tdsqlite3_extended_errcode       tdsqlite3_api->extended_errcode
-#define tdsqlite3_log                    tdsqlite3_api->log
-#define tdsqlite3_soft_heap_limit64      tdsqlite3_api->soft_heap_limit64
-#define tdsqlite3_sourceid               tdsqlite3_api->sourceid
-#define tdsqlite3_stmt_status            tdsqlite3_api->stmt_status
-#define tdsqlite3_strnicmp               tdsqlite3_api->strnicmp
-#define tdsqlite3_unlock_notify          tdsqlite3_api->unlock_notify
-#define tdsqlite3_wal_autocheckpoint     tdsqlite3_api->wal_autocheckpoint
-#define tdsqlite3_wal_checkpoint         tdsqlite3_api->wal_checkpoint
-#define tdsqlite3_wal_hook               tdsqlite3_api->wal_hook
-#define tdsqlite3_blob_reopen            tdsqlite3_api->blob_reopen
-#define tdsqlite3_vtab_config            tdsqlite3_api->vtab_config
-#define tdsqlite3_vtab_on_conflict       tdsqlite3_api->vtab_on_conflict
-/* Version 3.7.16 and later */
-#define tdsqlite3_close_v2               tdsqlite3_api->close_v2
-#define tdsqlite3_db_filename            tdsqlite3_api->db_filename
-#define tdsqlite3_db_readonly            tdsqlite3_api->db_readonly
-#define tdsqlite3_db_release_memory      tdsqlite3_api->db_release_memory
-#define tdsqlite3_errstr                 tdsqlite3_api->errstr
-#define tdsqlite3_stmt_busy              tdsqlite3_api->stmt_busy
-#define tdsqlite3_stmt_readonly          tdsqlite3_api->stmt_readonly
-#define tdsqlite3_stricmp                tdsqlite3_api->stricmp
-#define tdsqlite3_uri_boolean            tdsqlite3_api->uri_boolean
-#define tdsqlite3_uri_int64              tdsqlite3_api->uri_int64
-#define tdsqlite3_uri_parameter          tdsqlite3_api->uri_parameter
-#define tdsqlite3_uri_vsnprintf          tdsqlite3_api->xvsnprintf
-#define tdsqlite3_wal_checkpoint_v2      tdsqlite3_api->wal_checkpoint_v2
-/* Version 3.8.7 and later */
-#define tdsqlite3_auto_extension         tdsqlite3_api->auto_extension
-#define tdsqlite3_bind_blob64            tdsqlite3_api->bind_blob64
-#define tdsqlite3_bind_text64            tdsqlite3_api->bind_text64
-#define tdsqlite3_cancel_auto_extension  tdsqlite3_api->cancel_auto_extension
-#define tdsqlite3_load_extension         tdsqlite3_api->load_extension
-#define tdsqlite3_malloc64               tdsqlite3_api->malloc64
-#define tdsqlite3_msize                  tdsqlite3_api->msize
-#define tdsqlite3_realloc64              tdsqlite3_api->realloc64
-#define tdsqlite3_reset_auto_extension   tdsqlite3_api->reset_auto_extension
-#define tdsqlite3_result_blob64          tdsqlite3_api->result_blob64
-#define tdsqlite3_result_text64          tdsqlite3_api->result_text64
-#define tdsqlite3_strglob                tdsqlite3_api->strglob
-/* Version 3.8.11 and later */
-#define tdsqlite3_value_dup              tdsqlite3_api->value_dup
-#define tdsqlite3_value_free             tdsqlite3_api->value_free
-#define tdsqlite3_result_zeroblob64      tdsqlite3_api->result_zeroblob64
-#define tdsqlite3_bind_zeroblob64        tdsqlite3_api->bind_zeroblob64
-/* Version 3.9.0 and later */
-#define tdsqlite3_value_subtype          tdsqlite3_api->value_subtype
-#define tdsqlite3_result_subtype         tdsqlite3_api->result_subtype
-/* Version 3.10.0 and later */
-#define tdsqlite3_status64               tdsqlite3_api->status64
-#define tdsqlite3_strlike                tdsqlite3_api->strlike
-#define tdsqlite3_db_cacheflush          tdsqlite3_api->db_cacheflush
-/* Version 3.12.0 and later */
-#define tdsqlite3_system_errno           tdsqlite3_api->system_errno
-/* Version 3.14.0 and later */
-#define tdsqlite3_trace_v2               tdsqlite3_api->trace_v2
-#define tdsqlite3_expanded_sql           tdsqlite3_api->expanded_sql
-/* Version 3.18.0 and later */
-#define tdsqlite3_set_last_insert_rowid  tdsqlite3_api->set_last_insert_rowid
-/* Version 3.20.0 and later */
-#define tdsqlite3_prepare_v3             tdsqlite3_api->prepare_v3
-#define tdsqlite3_prepare16_v3           tdsqlite3_api->prepare16_v3
-#define tdsqlite3_bind_pointer           tdsqlite3_api->bind_pointer
-#define tdsqlite3_result_pointer         tdsqlite3_api->result_pointer
-#define tdsqlite3_value_pointer          tdsqlite3_api->value_pointer
-/* Version 3.22.0 and later */
-#define tdsqlite3_vtab_nochange          tdsqlite3_api->vtab_nochange
-#define tdsqlite3_value_nochange         tdsqlite3_api->value_nochange
-#define tdsqlite3_vtab_collation         tdsqlite3_api->vtab_collation
-/* Version 3.24.0 and later */
-#define tdsqlite3_keyword_count          tdsqlite3_api->keyword_count
-#define tdsqlite3_keyword_name           tdsqlite3_api->keyword_name
-#define tdsqlite3_keyword_check          tdsqlite3_api->keyword_check
-#define tdsqlite3_str_new                tdsqlite3_api->str_new
-#define tdsqlite3_str_finish             tdsqlite3_api->str_finish
-#define tdsqlite3_str_appendf            tdsqlite3_api->str_appendf
-#define tdsqlite3_str_vappendf           tdsqlite3_api->str_vappendf
-#define tdsqlite3_str_append             tdsqlite3_api->str_append
-#define tdsqlite3_str_appendall          tdsqlite3_api->str_appendall
-#define tdsqlite3_str_appendchar         tdsqlite3_api->str_appendchar
-#define tdsqlite3_str_reset              tdsqlite3_api->str_reset
-#define tdsqlite3_str_errcode            tdsqlite3_api->str_errcode
-#define tdsqlite3_str_length             tdsqlite3_api->str_length
-#define tdsqlite3_str_value              tdsqlite3_api->str_value
-/* Version 3.25.0 and later */
-#define tdsqlite3_create_window_function tdsqlite3_api->create_window_function
-/* Version 3.26.0 and later */
-#define tdsqlite3_normalized_sql         tdsqlite3_api->normalized_sql
-/* Version 3.28.0 and later */
-#define tdsqlite3_stmt_isexplain         tdsqlite3_api->isexplain
-#define tdsqlite3_value_frombind         tdsqlite3_api->frombind
-/* Version 3.30.0 and later */
-#define tdsqlite3_drop_modules           tdsqlite3_api->drop_modules
-/* Version 3.31.0 andn later */
-#define tdsqlite3_hard_heap_limit64      tdsqlite3_api->hard_heap_limit64
-#define tdsqlite3_uri_key                tdsqlite3_api->uri_key
-#define tdsqlite3_filename_database      tdsqlite3_api->filename_database
-#define tdsqlite3_filename_journal       tdsqlite3_api->filename_journal
-#define tdsqlite3_filename_wal           tdsqlite3_api->filename_wal
-#endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */
-
-#if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
-  /* This case when the file really is being compiled as a loadable 
-  ** extension */
-# define SQLITE_EXTENSION_INIT1     const tdsqlite3_api_routines *tdsqlite3_api=0;
-# define SQLITE_EXTENSION_INIT2(v)  tdsqlite3_api=v;
-# define SQLITE_EXTENSION_INIT3     \
-    extern const tdsqlite3_api_routines *tdsqlite3_api;
-#else
-  /* This case when the file is being statically linked into the 
-  ** application */
-# define SQLITE_EXTENSION_INIT1     /*no-op*/
-# define SQLITE_EXTENSION_INIT2(v)  (void)v; /* unused parameter */
-# define SQLITE_EXTENSION_INIT3     /*no-op*/
-#endif
-
-#endif /* SQLITE3EXT_H */
diff --git a/third-party/td/td/sqlite/sqlite/sqlite3session.h b/third-party/td/td/sqlite/sqlite/sqlite3session.h
deleted file mode 100644
index 5ad10cd56e..0000000000
--- a/third-party/td/td/sqlite/sqlite/sqlite3session.h
+++ /dev/null
@@ -1,1659 +0,0 @@
-#if !defined(__SQLITESESSION_H_) && defined(SQLITE_ENABLE_SESSION)
-#define __SQLITESESSION_H_ 1
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "sqlite3.h"
-
-/*
-** CAPI3REF: Session Object Handle
-**
-** An instance of this object is a [session] that can be used to
-** record changes to a database.
-*/
-typedef struct tdsqlite3_session tdsqlite3_session;
-
-/*
-** CAPI3REF: Changeset Iterator Handle
-**
-** An instance of this object acts as a cursor for iterating
-** over the elements of a [changeset] or [patchset].
-*/
-typedef struct tdsqlite3_changeset_iter tdsqlite3_changeset_iter;
-
-/*
-** CAPI3REF: Create A New Session Object
-** CONSTRUCTOR: tdsqlite3_session
-**
-** Create a new session object attached to database handle db. If successful,
-** a pointer to the new object is written to *ppSession and SQLITE_OK is
-** returned. If an error occurs, *ppSession is set to NULL and an SQLite
-** error code (e.g. SQLITE_NOMEM) is returned.
-**
-** It is possible to create multiple session objects attached to a single
-** database handle.
-**
-** Session objects created using this function should be deleted using the
-** [tdsqlite3session_delete()] function before the database handle that they
-** are attached to is itself closed. If the database handle is closed before
-** the session object is deleted, then the results of calling any session
-** module function, including [tdsqlite3session_delete()] on the session object
-** are undefined.
-**
-** Because the session module uses the [tdsqlite3_preupdate_hook()] API, it
-** is not possible for an application to register a pre-update hook on a
-** database handle that has one or more session objects attached. Nor is
-** it possible to create a session object attached to a database handle for
-** which a pre-update hook is already defined. The results of attempting 
-** either of these things are undefined.
-**
-** The session object will be used to create changesets for tables in
-** database zDb, where zDb is either "main", or "temp", or the name of an
-** attached database. It is not an error if database zDb is not attached
-** to the database when the session object is created.
-*/
-int tdsqlite3session_create(
-  tdsqlite3 *db,                    /* Database handle */
-  const char *zDb,                /* Name of db (e.g. "main") */
-  tdsqlite3_session **ppSession     /* OUT: New session object */
-);
-
-/*
-** CAPI3REF: Delete A Session Object
-** DESTRUCTOR: tdsqlite3_session
-**
-** Delete a session object previously allocated using 
-** [tdsqlite3session_create()]. Once a session object has been deleted, the
-** results of attempting to use pSession with any other session module
-** function are undefined.
-**
-** Session objects must be deleted before the database handle to which they
-** are attached is closed. Refer to the documentation for 
-** [tdsqlite3session_create()] for details.
-*/
-void tdsqlite3session_delete(tdsqlite3_session *pSession);
-
-
-/*
-** CAPI3REF: Enable Or Disable A Session Object
-** METHOD: tdsqlite3_session
-**
-** Enable or disable the recording of changes by a session object. When
-** enabled, a session object records changes made to the database. When
-** disabled - it does not. A newly created session object is enabled.
-** Refer to the documentation for [tdsqlite3session_changeset()] for further
-** details regarding how enabling and disabling a session object affects
-** the eventual changesets.
-**
-** Passing zero to this function disables the session. Passing a value
-** greater than zero enables it. Passing a value less than zero is a 
-** no-op, and may be used to query the current state of the session.
-**
-** The return value indicates the final state of the session object: 0 if 
-** the session is disabled, or 1 if it is enabled.
-*/
-int tdsqlite3session_enable(tdsqlite3_session *pSession, int bEnable);
-
-/*
-** CAPI3REF: Set Or Clear the Indirect Change Flag
-** METHOD: tdsqlite3_session
-**
-** Each change recorded by a session object is marked as either direct or
-** indirect. A change is marked as indirect if either:
-**
-** <ul>
-**   <li> The session object "indirect" flag is set when the change is
-**        made, or
-**   <li> The change is made by an SQL trigger or foreign key action 
-**        instead of directly as a result of a users SQL statement.
-** </ul>
-**
-** If a single row is affected by more than one operation within a session,
-** then the change is considered indirect if all operations meet the criteria
-** for an indirect change above, or direct otherwise.
-**
-** This function is used to set, clear or query the session object indirect
-** flag.  If the second argument passed to this function is zero, then the
-** indirect flag is cleared. If it is greater than zero, the indirect flag
-** is set. Passing a value less than zero does not modify the current value
-** of the indirect flag, and may be used to query the current state of the 
-** indirect flag for the specified session object.
-**
-** The return value indicates the final state of the indirect flag: 0 if 
-** it is clear, or 1 if it is set.
-*/
-int tdsqlite3session_indirect(tdsqlite3_session *pSession, int bIndirect);
-
-/*
-** CAPI3REF: Attach A Table To A Session Object
-** METHOD: tdsqlite3_session
-**
-** If argument zTab is not NULL, then it is the name of a table to attach
-** to the session object passed as the first argument. All subsequent changes 
-** made to the table while the session object is enabled will be recorded. See 
-** documentation for [tdsqlite3session_changeset()] for further details.
-**
-** Or, if argument zTab is NULL, then changes are recorded for all tables
-** in the database. If additional tables are added to the database (by 
-** executing "CREATE TABLE" statements) after this call is made, changes for 
-** the new tables are also recorded.
-**
-** Changes can only be recorded for tables that have a PRIMARY KEY explicitly
-** defined as part of their CREATE TABLE statement. It does not matter if the 
-** PRIMARY KEY is an "INTEGER PRIMARY KEY" (rowid alias) or not. The PRIMARY
-** KEY may consist of a single column, or may be a composite key.
-** 
-** It is not an error if the named table does not exist in the database. Nor
-** is it an error if the named table does not have a PRIMARY KEY. However,
-** no changes will be recorded in either of these scenarios.
-**
-** Changes are not recorded for individual rows that have NULL values stored
-** in one or more of their PRIMARY KEY columns.
-**
-** SQLITE_OK is returned if the call completes without error. Or, if an error 
-** occurs, an SQLite error code (e.g. SQLITE_NOMEM) is returned.
-**
-** <h3>Special sqlite_stat1 Handling</h3>
-**
-** As of SQLite version 3.22.0, the "sqlite_stat1" table is an exception to 
-** some of the rules above. In SQLite, the schema of sqlite_stat1 is:
-**  <pre>
-**  &nbsp;     CREATE TABLE sqlite_stat1(tbl,idx,stat)  
-**  </pre>
-**
-** Even though sqlite_stat1 does not have a PRIMARY KEY, changes are 
-** recorded for it as if the PRIMARY KEY is (tbl,idx). Additionally, changes 
-** are recorded for rows for which (idx IS NULL) is true. However, for such
-** rows a zero-length blob (SQL value X'') is stored in the changeset or
-** patchset instead of a NULL value. This allows such changesets to be
-** manipulated by legacy implementations of tdsqlite3changeset_invert(),
-** concat() and similar.
-**
-** The tdsqlite3changeset_apply() function automatically converts the 
-** zero-length blob back to a NULL value when updating the sqlite_stat1
-** table. However, if the application calls tdsqlite3changeset_new(),
-** tdsqlite3changeset_old() or tdsqlite3changeset_conflict on a changeset 
-** iterator directly (including on a changeset iterator passed to a
-** conflict-handler callback) then the X'' value is returned. The application
-** must translate X'' to NULL itself if required.
-**
-** Legacy (older than 3.22.0) versions of the sessions module cannot capture
-** changes made to the sqlite_stat1 table. Legacy versions of the
-** tdsqlite3changeset_apply() function silently ignore any modifications to the
-** sqlite_stat1 table that are part of a changeset or patchset.
-*/
-int tdsqlite3session_attach(
-  tdsqlite3_session *pSession,      /* Session object */
-  const char *zTab                /* Table name */
-);
-
-/*
-** CAPI3REF: Set a table filter on a Session Object.
-** METHOD: tdsqlite3_session
-**
-** The second argument (xFilter) is the "filter callback". For changes to rows 
-** in tables that are not attached to the Session object, the filter is called
-** to determine whether changes to the table's rows should be tracked or not. 
-** If xFilter returns 0, changes are not tracked. Note that once a table is 
-** attached, xFilter will not be called again.
-*/
-void tdsqlite3session_table_filter(
-  tdsqlite3_session *pSession,      /* Session object */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of third arg to _filter_table() */
-    const char *zTab              /* Table name */
-  ),
-  void *pCtx                      /* First argument passed to xFilter */
-);
-
-/*
-** CAPI3REF: Generate A Changeset From A Session Object
-** METHOD: tdsqlite3_session
-**
-** Obtain a changeset containing changes to the tables attached to the 
-** session object passed as the first argument. If successful, 
-** set *ppChangeset to point to a buffer containing the changeset 
-** and *pnChangeset to the size of the changeset in bytes before returning
-** SQLITE_OK. If an error occurs, set both *ppChangeset and *pnChangeset to
-** zero and return an SQLite error code.
-**
-** A changeset consists of zero or more INSERT, UPDATE and/or DELETE changes,
-** each representing a change to a single row of an attached table. An INSERT
-** change contains the values of each field of a new database row. A DELETE
-** contains the original values of each field of a deleted database row. An
-** UPDATE change contains the original values of each field of an updated
-** database row along with the updated values for each updated non-primary-key
-** column. It is not possible for an UPDATE change to represent a change that
-** modifies the values of primary key columns. If such a change is made, it
-** is represented in a changeset as a DELETE followed by an INSERT.
-**
-** Changes are not recorded for rows that have NULL values stored in one or 
-** more of their PRIMARY KEY columns. If such a row is inserted or deleted,
-** no corresponding change is present in the changesets returned by this
-** function. If an existing row with one or more NULL values stored in
-** PRIMARY KEY columns is updated so that all PRIMARY KEY columns are non-NULL,
-** only an INSERT is appears in the changeset. Similarly, if an existing row
-** with non-NULL PRIMARY KEY values is updated so that one or more of its
-** PRIMARY KEY columns are set to NULL, the resulting changeset contains a
-** DELETE change only.
-**
-** The contents of a changeset may be traversed using an iterator created
-** using the [tdsqlite3changeset_start()] API. A changeset may be applied to
-** a database with a compatible schema using the [tdsqlite3changeset_apply()]
-** API.
-**
-** Within a changeset generated by this function, all changes related to a
-** single table are grouped together. In other words, when iterating through
-** a changeset or when applying a changeset to a database, all changes related
-** to a single table are processed before moving on to the next table. Tables
-** are sorted in the same order in which they were attached (or auto-attached)
-** to the tdsqlite3_session object. The order in which the changes related to
-** a single table are stored is undefined.
-**
-** Following a successful call to this function, it is the responsibility of
-** the caller to eventually free the buffer that *ppChangeset points to using
-** [tdsqlite3_free()].
-**
-** <h3>Changeset Generation</h3>
-**
-** Once a table has been attached to a session object, the session object
-** records the primary key values of all new rows inserted into the table.
-** It also records the original primary key and other column values of any
-** deleted or updated rows. For each unique primary key value, data is only
-** recorded once - the first time a row with said primary key is inserted,
-** updated or deleted in the lifetime of the session.
-**
-** There is one exception to the previous paragraph: when a row is inserted,
-** updated or deleted, if one or more of its primary key columns contain a
-** NULL value, no record of the change is made.
-**
-** The session object therefore accumulates two types of records - those
-** that consist of primary key values only (created when the user inserts
-** a new record) and those that consist of the primary key values and the
-** original values of other table columns (created when the users deletes
-** or updates a record).
-**
-** When this function is called, the requested changeset is created using
-** both the accumulated records and the current contents of the database
-** file. Specifically:
-**
-** <ul>
-**   <li> For each record generated by an insert, the database is queried
-**        for a row with a matching primary key. If one is found, an INSERT
-**        change is added to the changeset. If no such row is found, no change 
-**        is added to the changeset.
-**
-**   <li> For each record generated by an update or delete, the database is 
-**        queried for a row with a matching primary key. If such a row is
-**        found and one or more of the non-primary key fields have been
-**        modified from their original values, an UPDATE change is added to 
-**        the changeset. Or, if no such row is found in the table, a DELETE 
-**        change is added to the changeset. If there is a row with a matching
-**        primary key in the database, but all fields contain their original
-**        values, no change is added to the changeset.
-** </ul>
-**
-** This means, amongst other things, that if a row is inserted and then later
-** deleted while a session object is active, neither the insert nor the delete
-** will be present in the changeset. Or if a row is deleted and then later a 
-** row with the same primary key values inserted while a session object is
-** active, the resulting changeset will contain an UPDATE change instead of
-** a DELETE and an INSERT.
-**
-** When a session object is disabled (see the [tdsqlite3session_enable()] API),
-** it does not accumulate records when rows are inserted, updated or deleted.
-** This may appear to have some counter-intuitive effects if a single row
-** is written to more than once during a session. For example, if a row
-** is inserted while a session object is enabled, then later deleted while 
-** the same session object is disabled, no INSERT record will appear in the
-** changeset, even though the delete took place while the session was disabled.
-** Or, if one field of a row is updated while a session is disabled, and 
-** another field of the same row is updated while the session is enabled, the
-** resulting changeset will contain an UPDATE change that updates both fields.
-*/
-int tdsqlite3session_changeset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int *pnChangeset,               /* OUT: Size of buffer at *ppChangeset */
-  void **ppChangeset              /* OUT: Buffer containing changeset */
-);
-
-/*
-** CAPI3REF: Load The Difference Between Tables Into A Session
-** METHOD: tdsqlite3_session
-**
-** If it is not already attached to the session object passed as the first
-** argument, this function attaches table zTbl in the same manner as the
-** [tdsqlite3session_attach()] function. If zTbl does not exist, or if it
-** does not have a primary key, this function is a no-op (but does not return
-** an error).
-**
-** Argument zFromDb must be the name of a database ("main", "temp" etc.)
-** attached to the same database handle as the session object that contains 
-** a table compatible with the table attached to the session by this function.
-** A table is considered compatible if it:
-**
-** <ul>
-**   <li> Has the same name,
-**   <li> Has the same set of columns declared in the same order, and
-**   <li> Has the same PRIMARY KEY definition.
-** </ul>
-**
-** If the tables are not compatible, SQLITE_SCHEMA is returned. If the tables
-** are compatible but do not have any PRIMARY KEY columns, it is not an error
-** but no changes are added to the session object. As with other session
-** APIs, tables without PRIMARY KEYs are simply ignored.
-**
-** This function adds a set of changes to the session object that could be
-** used to update the table in database zFrom (call this the "from-table") 
-** so that its content is the same as the table attached to the session 
-** object (call this the "to-table"). Specifically:
-**
-** <ul>
-**   <li> For each row (primary key) that exists in the to-table but not in 
-**     the from-table, an INSERT record is added to the session object.
-**
-**   <li> For each row (primary key) that exists in the to-table but not in 
-**     the from-table, a DELETE record is added to the session object.
-**
-**   <li> For each row (primary key) that exists in both tables, but features 
-**     different non-PK values in each, an UPDATE record is added to the
-**     session.  
-** </ul>
-**
-** To clarify, if this function is called and then a changeset constructed
-** using [tdsqlite3session_changeset()], then after applying that changeset to 
-** database zFrom the contents of the two compatible tables would be 
-** identical.
-**
-** It an error if database zFrom does not exist or does not contain the
-** required compatible table.
-**
-** If the operation is successful, SQLITE_OK is returned. Otherwise, an SQLite
-** error code. In this case, if argument pzErrMsg is not NULL, *pzErrMsg
-** may be set to point to a buffer containing an English language error 
-** message. It is the responsibility of the caller to free this buffer using
-** tdsqlite3_free().
-*/
-int tdsqlite3session_diff(
-  tdsqlite3_session *pSession,
-  const char *zFromDb,
-  const char *zTbl,
-  char **pzErrMsg
-);
-
-
-/*
-** CAPI3REF: Generate A Patchset From A Session Object
-** METHOD: tdsqlite3_session
-**
-** The differences between a patchset and a changeset are that:
-**
-** <ul>
-**   <li> DELETE records consist of the primary key fields only. The 
-**        original values of other fields are omitted.
-**   <li> The original values of any modified fields are omitted from 
-**        UPDATE records.
-** </ul>
-**
-** A patchset blob may be used with up to date versions of all 
-** tdsqlite3changeset_xxx API functions except for tdsqlite3changeset_invert(), 
-** which returns SQLITE_CORRUPT if it is passed a patchset. Similarly,
-** attempting to use a patchset blob with old versions of the
-** tdsqlite3changeset_xxx APIs also provokes an SQLITE_CORRUPT error. 
-**
-** Because the non-primary key "old.*" fields are omitted, no 
-** SQLITE_CHANGESET_DATA conflicts can be detected or reported if a patchset
-** is passed to the tdsqlite3changeset_apply() API. Other conflict types work
-** in the same way as for changesets.
-**
-** Changes within a patchset are ordered in the same way as for changesets
-** generated by the tdsqlite3session_changeset() function (i.e. all changes for
-** a single table are grouped together, tables appear in the order in which
-** they were attached to the session object).
-*/
-int tdsqlite3session_patchset(
-  tdsqlite3_session *pSession,      /* Session object */
-  int *pnPatchset,                /* OUT: Size of buffer at *ppPatchset */
-  void **ppPatchset               /* OUT: Buffer containing patchset */
-);
-
-/*
-** CAPI3REF: Test if a changeset has recorded any changes.
-**
-** Return non-zero if no changes to attached tables have been recorded by 
-** the session object passed as the first argument. Otherwise, if one or 
-** more changes have been recorded, return zero.
-**
-** Even if this function returns zero, it is possible that calling
-** [tdsqlite3session_changeset()] on the session handle may still return a
-** changeset that contains no changes. This can happen when a row in 
-** an attached table is modified and then later on the original values 
-** are restored. However, if this function returns non-zero, then it is
-** guaranteed that a call to tdsqlite3session_changeset() will return a 
-** changeset containing zero changes.
-*/
-int tdsqlite3session_isempty(tdsqlite3_session *pSession);
-
-/*
-** CAPI3REF: Create An Iterator To Traverse A Changeset 
-** CONSTRUCTOR: tdsqlite3_changeset_iter
-**
-** Create an iterator used to iterate through the contents of a changeset.
-** If successful, *pp is set to point to the iterator handle and SQLITE_OK
-** is returned. Otherwise, if an error occurs, *pp is set to zero and an
-** SQLite error code is returned.
-**
-** The following functions can be used to advance and query a changeset 
-** iterator created by this function:
-**
-** <ul>
-**   <li> [tdsqlite3changeset_next()]
-**   <li> [tdsqlite3changeset_op()]
-**   <li> [tdsqlite3changeset_new()]
-**   <li> [tdsqlite3changeset_old()]
-** </ul>
-**
-** It is the responsibility of the caller to eventually destroy the iterator
-** by passing it to [tdsqlite3changeset_finalize()]. The buffer containing the
-** changeset (pChangeset) must remain valid until after the iterator is
-** destroyed.
-**
-** Assuming the changeset blob was created by one of the
-** [tdsqlite3session_changeset()], [tdsqlite3changeset_concat()] or
-** [tdsqlite3changeset_invert()] functions, all changes within the changeset 
-** that apply to a single table are grouped together. This means that when 
-** an application iterates through a changeset using an iterator created by 
-** this function, all changes that relate to a single table are visited 
-** consecutively. There is no chance that the iterator will visit a change 
-** the applies to table X, then one for table Y, and then later on visit 
-** another change for table X.
-**
-** The behavior of tdsqlite3changeset_start_v2() and its streaming equivalent
-** may be modified by passing a combination of
-** [SQLITE_CHANGESETSTART_INVERT | supported flags] as the 4th parameter.
-**
-** Note that the tdsqlite3changeset_start_v2() API is still <b>experimental</b>
-** and therefore subject to change.
-*/
-int tdsqlite3changeset_start(
-  tdsqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
-  int nChangeset,                 /* Size of changeset blob in bytes */
-  void *pChangeset                /* Pointer to blob containing changeset */
-);
-int tdsqlite3changeset_start_v2(
-  tdsqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
-  int nChangeset,                 /* Size of changeset blob in bytes */
-  void *pChangeset,               /* Pointer to blob containing changeset */
-  int flags                       /* SESSION_CHANGESETSTART_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3changeset_start_v2
-**
-** The following flags may passed via the 4th parameter to
-** [tdsqlite3changeset_start_v2] and [tdsqlite3changeset_start_v2_strm]:
-**
-** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
-**   Invert the changeset while iterating through it. This is equivalent to
-**   inverting a changeset using tdsqlite3changeset_invert() before applying it.
-**   It is an error to specify this flag with a patchset.
-*/
-#define SQLITE_CHANGESETSTART_INVERT        0x0002
-
-
-/*
-** CAPI3REF: Advance A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function may only be used with iterators created by the function
-** [tdsqlite3changeset_start()]. If it is called on an iterator passed to
-** a conflict-handler callback by [tdsqlite3changeset_apply()], SQLITE_MISUSE
-** is returned and the call has no effect.
-**
-** Immediately after an iterator is created by tdsqlite3changeset_start(), it
-** does not point to any change in the changeset. Assuming the changeset
-** is not empty, the first call to this function advances the iterator to
-** point to the first change in the changeset. Each subsequent call advances
-** the iterator to point to the next change in the changeset (if any). If
-** no error occurs and the iterator points to a valid change after a call
-** to tdsqlite3changeset_next() has advanced it, SQLITE_ROW is returned. 
-** Otherwise, if all changes in the changeset have already been visited,
-** SQLITE_DONE is returned.
-**
-** If an error occurs, an SQLite error code is returned. Possible error 
-** codes include SQLITE_CORRUPT (if the changeset buffer is corrupt) or 
-** SQLITE_NOMEM.
-*/
-int tdsqlite3changeset_next(tdsqlite3_changeset_iter *pIter);
-
-/*
-** CAPI3REF: Obtain The Current Operation From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned [SQLITE_ROW]. If this
-** is not the case, this function returns [SQLITE_MISUSE].
-**
-** If argument pzTab is not NULL, then *pzTab is set to point to a
-** nul-terminated utf-8 encoded string containing the name of the table
-** affected by the current change. The buffer remains valid until either
-** tdsqlite3changeset_next() is called on the iterator or until the 
-** conflict-handler function returns. If pnCol is not NULL, then *pnCol is 
-** set to the number of columns in the table affected by the change. If
-** pbIndirect is not NULL, then *pbIndirect is set to true (1) if the change
-** is an indirect change, or false (0) otherwise. See the documentation for
-** [tdsqlite3session_indirect()] for a description of direct and indirect
-** changes. Finally, if pOp is not NULL, then *pOp is set to one of 
-** [SQLITE_INSERT], [SQLITE_DELETE] or [SQLITE_UPDATE], depending on the 
-** type of change that the iterator currently points to.
-**
-** If no error occurs, SQLITE_OK is returned. If an error does occur, an
-** SQLite error code is returned. The values of the output variables may not
-** be trusted in this case.
-*/
-int tdsqlite3changeset_op(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator object */
-  const char **pzTab,             /* OUT: Pointer to table name */
-  int *pnCol,                     /* OUT: Number of columns in table */
-  int *pOp,                       /* OUT: SQLITE_INSERT, DELETE or UPDATE */
-  int *pbIndirect                 /* OUT: True for an 'indirect' change */
-);
-
-/*
-** CAPI3REF: Obtain The Primary Key Definition Of A Table
-** METHOD: tdsqlite3_changeset_iter
-**
-** For each modified table, a changeset includes the following:
-**
-** <ul>
-**   <li> The number of columns in the table, and
-**   <li> Which of those columns make up the tables PRIMARY KEY.
-** </ul>
-**
-** This function is used to find which columns comprise the PRIMARY KEY of
-** the table modified by the change that iterator pIter currently points to.
-** If successful, *pabPK is set to point to an array of nCol entries, where
-** nCol is the number of columns in the table. Elements of *pabPK are set to
-** 0x01 if the corresponding column is part of the tables primary key, or
-** 0x00 if it is not.
-**
-** If argument pnCol is not NULL, then *pnCol is set to the number of columns
-** in the table.
-**
-** If this function is called when the iterator does not point to a valid
-** entry, SQLITE_MISUSE is returned and the output variables zeroed. Otherwise,
-** SQLITE_OK is returned and the output variables populated as described
-** above.
-*/
-int tdsqlite3changeset_pk(
-  tdsqlite3_changeset_iter *pIter,  /* Iterator object */
-  unsigned char **pabPK,          /* OUT: Array of boolean - true for PK cols */
-  int *pnCol                      /* OUT: Number of entries in output array */
-);
-
-/*
-** CAPI3REF: Obtain old.* Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned SQLITE_ROW. 
-** Furthermore, it may only be called if the type of change that the iterator
-** currently points to is either [SQLITE_DELETE] or [SQLITE_UPDATE]. Otherwise,
-** this function returns [SQLITE_MISUSE] and sets *ppValue to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the vector of 
-** original row values stored as part of the UPDATE or DELETE change and
-** returns SQLITE_OK. The name of the function comes from the fact that this 
-** is similar to the "old.*" columns available to update or delete triggers.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-int tdsqlite3changeset_old(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: Old value (or NULL pointer) */
-);
-
-/*
-** CAPI3REF: Obtain new.* Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** The pIter argument passed to this function may either be an iterator
-** passed to a conflict-handler by [tdsqlite3changeset_apply()], or an iterator
-** created by [tdsqlite3changeset_start()]. In the latter case, the most recent
-** call to [tdsqlite3changeset_next()] must have returned SQLITE_ROW. 
-** Furthermore, it may only be called if the type of change that the iterator
-** currently points to is either [SQLITE_UPDATE] or [SQLITE_INSERT]. Otherwise,
-** this function returns [SQLITE_MISUSE] and sets *ppValue to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the vector of 
-** new row values stored as part of the UPDATE or INSERT change and
-** returns SQLITE_OK. If the change is an UPDATE and does not include
-** a new value for the requested column, *ppValue is set to NULL and 
-** SQLITE_OK returned. The name of the function comes from the fact that 
-** this is similar to the "new.*" columns available to update or delete 
-** triggers.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-int tdsqlite3changeset_new(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: New value (or NULL pointer) */
-);
-
-/*
-** CAPI3REF: Obtain Conflicting Row Values From A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function should only be used with iterator objects passed to a
-** conflict-handler callback by [tdsqlite3changeset_apply()] with either
-** [SQLITE_CHANGESET_DATA] or [SQLITE_CHANGESET_CONFLICT]. If this function
-** is called on any other iterator, [SQLITE_MISUSE] is returned and *ppValue
-** is set to NULL.
-**
-** Argument iVal must be greater than or equal to 0, and less than the number
-** of columns in the table affected by the current change. Otherwise,
-** [SQLITE_RANGE] is returned and *ppValue is set to NULL.
-**
-** If successful, this function sets *ppValue to point to a protected
-** tdsqlite3_value object containing the iVal'th value from the 
-** "conflicting row" associated with the current conflict-handler callback
-** and returns SQLITE_OK.
-**
-** If some other error occurs (e.g. an OOM condition), an SQLite error code
-** is returned and *ppValue is set to NULL.
-*/
-int tdsqlite3changeset_conflict(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int iVal,                       /* Column number */
-  tdsqlite3_value **ppValue         /* OUT: Value from conflicting row */
-);
-
-/*
-** CAPI3REF: Determine The Number Of Foreign Key Constraint Violations
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function may only be called with an iterator passed to an
-** SQLITE_CHANGESET_FOREIGN_KEY conflict handler callback. In this case
-** it sets the output variable to the total number of known foreign key
-** violations in the destination database and returns SQLITE_OK.
-**
-** In all other cases this function returns SQLITE_MISUSE.
-*/
-int tdsqlite3changeset_fk_conflicts(
-  tdsqlite3_changeset_iter *pIter,  /* Changeset iterator */
-  int *pnOut                      /* OUT: Number of FK violations */
-);
-
-
-/*
-** CAPI3REF: Finalize A Changeset Iterator
-** METHOD: tdsqlite3_changeset_iter
-**
-** This function is used to finalize an iterator allocated with
-** [tdsqlite3changeset_start()].
-**
-** This function should only be called on iterators created using the
-** [tdsqlite3changeset_start()] function. If an application calls this
-** function with an iterator passed to a conflict-handler by
-** [tdsqlite3changeset_apply()], [SQLITE_MISUSE] is immediately returned and the
-** call has no effect.
-**
-** If an error was encountered within a call to an tdsqlite3changeset_xxx()
-** function (for example an [SQLITE_CORRUPT] in [tdsqlite3changeset_next()] or an 
-** [SQLITE_NOMEM] in [tdsqlite3changeset_new()]) then an error code corresponding
-** to that error is returned by this function. Otherwise, SQLITE_OK is
-** returned. This is to allow the following pattern (pseudo-code):
-**
-** <pre>
-**   tdsqlite3changeset_start();
-**   while( SQLITE_ROW==tdsqlite3changeset_next() ){
-**     // Do something with change.
-**   }
-**   rc = tdsqlite3changeset_finalize();
-**   if( rc!=SQLITE_OK ){
-**     // An error has occurred 
-**   }
-** </pre>
-*/
-int tdsqlite3changeset_finalize(tdsqlite3_changeset_iter *pIter);
-
-/*
-** CAPI3REF: Invert A Changeset
-**
-** This function is used to "invert" a changeset object. Applying an inverted
-** changeset to a database reverses the effects of applying the uninverted
-** changeset. Specifically:
-**
-** <ul>
-**   <li> Each DELETE change is changed to an INSERT, and
-**   <li> Each INSERT change is changed to a DELETE, and
-**   <li> For each UPDATE change, the old.* and new.* values are exchanged.
-** </ul>
-**
-** This function does not change the order in which changes appear within
-** the changeset. It merely reverses the sense of each individual change.
-**
-** If successful, a pointer to a buffer containing the inverted changeset
-** is stored in *ppOut, the size of the same buffer is stored in *pnOut, and
-** SQLITE_OK is returned. If an error occurs, both *pnOut and *ppOut are
-** zeroed and an SQLite error code returned.
-**
-** It is the responsibility of the caller to eventually call tdsqlite3_free()
-** on the *ppOut pointer to free the buffer allocation following a successful 
-** call to this function.
-**
-** WARNING/TODO: This function currently assumes that the input is a valid
-** changeset. If it is not, the results are undefined.
-*/
-int tdsqlite3changeset_invert(
-  int nIn, const void *pIn,       /* Input changeset */
-  int *pnOut, void **ppOut        /* OUT: Inverse of input */
-);
-
-/*
-** CAPI3REF: Concatenate Two Changeset Objects
-**
-** This function is used to concatenate two changesets, A and B, into a 
-** single changeset. The result is a changeset equivalent to applying
-** changeset A followed by changeset B. 
-**
-** This function combines the two input changesets using an 
-** tdsqlite3_changegroup object. Calling it produces similar results as the
-** following code fragment:
-**
-** <pre>
-**   tdsqlite3_changegroup *pGrp;
-**   rc = tdsqlite3_changegroup_new(&pGrp);
-**   if( rc==SQLITE_OK ) rc = tdsqlite3changegroup_add(pGrp, nA, pA);
-**   if( rc==SQLITE_OK ) rc = tdsqlite3changegroup_add(pGrp, nB, pB);
-**   if( rc==SQLITE_OK ){
-**     rc = tdsqlite3changegroup_output(pGrp, pnOut, ppOut);
-**   }else{
-**     *ppOut = 0;
-**     *pnOut = 0;
-**   }
-** </pre>
-**
-** Refer to the tdsqlite3_changegroup documentation below for details.
-*/
-int tdsqlite3changeset_concat(
-  int nA,                         /* Number of bytes in buffer pA */
-  void *pA,                       /* Pointer to buffer containing changeset A */
-  int nB,                         /* Number of bytes in buffer pB */
-  void *pB,                       /* Pointer to buffer containing changeset B */
-  int *pnOut,                     /* OUT: Number of bytes in output changeset */
-  void **ppOut                    /* OUT: Buffer containing output changeset */
-);
-
-
-/*
-** CAPI3REF: Changegroup Handle
-**
-** A changegroup is an object used to combine two or more 
-** [changesets] or [patchsets]
-*/
-typedef struct tdsqlite3_changegroup tdsqlite3_changegroup;
-
-/*
-** CAPI3REF: Create A New Changegroup Object
-** CONSTRUCTOR: tdsqlite3_changegroup
-**
-** An tdsqlite3_changegroup object is used to combine two or more changesets
-** (or patchsets) into a single changeset (or patchset). A single changegroup
-** object may combine changesets or patchsets, but not both. The output is
-** always in the same format as the input.
-**
-** If successful, this function returns SQLITE_OK and populates (*pp) with
-** a pointer to a new tdsqlite3_changegroup object before returning. The caller
-** should eventually free the returned object using a call to 
-** tdsqlite3changegroup_delete(). If an error occurs, an SQLite error code
-** (i.e. SQLITE_NOMEM) is returned and *pp is set to NULL.
-**
-** The usual usage pattern for an tdsqlite3_changegroup object is as follows:
-**
-** <ul>
-**   <li> It is created using a call to tdsqlite3changegroup_new().
-**
-**   <li> Zero or more changesets (or patchsets) are added to the object
-**        by calling tdsqlite3changegroup_add().
-**
-**   <li> The result of combining all input changesets together is obtained 
-**        by the application via a call to tdsqlite3changegroup_output().
-**
-**   <li> The object is deleted using a call to tdsqlite3changegroup_delete().
-** </ul>
-**
-** Any number of calls to add() and output() may be made between the calls to
-** new() and delete(), and in any order.
-**
-** As well as the regular tdsqlite3changegroup_add() and 
-** tdsqlite3changegroup_output() functions, also available are the streaming
-** versions tdsqlite3changegroup_add_strm() and tdsqlite3changegroup_output_strm().
-*/
-int tdsqlite3changegroup_new(tdsqlite3_changegroup **pp);
-
-/*
-** CAPI3REF: Add A Changeset To A Changegroup
-** METHOD: tdsqlite3_changegroup
-**
-** Add all changes within the changeset (or patchset) in buffer pData (size
-** nData bytes) to the changegroup. 
-**
-** If the buffer contains a patchset, then all prior calls to this function
-** on the same changegroup object must also have specified patchsets. Or, if
-** the buffer contains a changeset, so must have the earlier calls to this
-** function. Otherwise, SQLITE_ERROR is returned and no changes are added
-** to the changegroup.
-**
-** Rows within the changeset and changegroup are identified by the values in
-** their PRIMARY KEY columns. A change in the changeset is considered to
-** apply to the same row as a change already present in the changegroup if
-** the two rows have the same primary key.
-**
-** Changes to rows that do not already appear in the changegroup are
-** simply copied into it. Or, if both the new changeset and the changegroup
-** contain changes that apply to a single row, the final contents of the
-** changegroup depends on the type of each change, as follows:
-**
-** <table border=1 style="margin-left:8ex;margin-right:8ex">
-**   <tr><th style="white-space:pre">Existing Change  </th>
-**       <th style="white-space:pre">New Change       </th>
-**       <th>Output Change
-**   <tr><td>INSERT <td>INSERT <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>INSERT <td>UPDATE <td>
-**       The INSERT change remains in the changegroup. The values in the 
-**       INSERT change are modified as if the row was inserted by the
-**       existing change and then updated according to the new change.
-**   <tr><td>INSERT <td>DELETE <td>
-**       The existing INSERT is removed from the changegroup. The DELETE is
-**       not added.
-**   <tr><td>UPDATE <td>INSERT <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>UPDATE <td>UPDATE <td>
-**       The existing UPDATE remains within the changegroup. It is amended 
-**       so that the accompanying values are as if the row was updated once 
-**       by the existing change and then again by the new change.
-**   <tr><td>UPDATE <td>DELETE <td>
-**       The existing UPDATE is replaced by the new DELETE within the
-**       changegroup.
-**   <tr><td>DELETE <td>INSERT <td>
-**       If one or more of the column values in the row inserted by the
-**       new change differ from those in the row deleted by the existing 
-**       change, the existing DELETE is replaced by an UPDATE within the
-**       changegroup. Otherwise, if the inserted row is exactly the same 
-**       as the deleted row, the existing DELETE is simply discarded.
-**   <tr><td>DELETE <td>UPDATE <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-**   <tr><td>DELETE <td>DELETE <td>
-**       The new change is ignored. This case does not occur if the new
-**       changeset was recorded immediately after the changesets already
-**       added to the changegroup.
-** </table>
-**
-** If the new changeset contains changes to a table that is already present
-** in the changegroup, then the number of columns and the position of the
-** primary key columns for the table must be consistent. If this is not the
-** case, this function fails with SQLITE_SCHEMA. If the input changeset
-** appears to be corrupt and the corruption is detected, SQLITE_CORRUPT is
-** returned. Or, if an out-of-memory condition occurs during processing, this
-** function returns SQLITE_NOMEM. In all cases, if an error occurs the state
-** of the final contents of the changegroup is undefined.
-**
-** If no error occurs, SQLITE_OK is returned.
-*/
-int tdsqlite3changegroup_add(tdsqlite3_changegroup*, int nData, void *pData);
-
-/*
-** CAPI3REF: Obtain A Composite Changeset From A Changegroup
-** METHOD: tdsqlite3_changegroup
-**
-** Obtain a buffer containing a changeset (or patchset) representing the
-** current contents of the changegroup. If the inputs to the changegroup
-** were themselves changesets, the output is a changeset. Or, if the
-** inputs were patchsets, the output is also a patchset.
-**
-** As with the output of the tdsqlite3session_changeset() and
-** tdsqlite3session_patchset() functions, all changes related to a single
-** table are grouped together in the output of this function. Tables appear
-** in the same order as for the very first changeset added to the changegroup.
-** If the second or subsequent changesets added to the changegroup contain
-** changes for tables that do not appear in the first changeset, they are
-** appended onto the end of the output changeset, again in the order in
-** which they are first encountered.
-**
-** If an error occurs, an SQLite error code is returned and the output
-** variables (*pnData) and (*ppData) are set to 0. Otherwise, SQLITE_OK
-** is returned and the output variables are set to the size of and a 
-** pointer to the output buffer, respectively. In this case it is the
-** responsibility of the caller to eventually free the buffer using a
-** call to tdsqlite3_free().
-*/
-int tdsqlite3changegroup_output(
-  tdsqlite3_changegroup*,
-  int *pnData,                    /* OUT: Size of output buffer in bytes */
-  void **ppData                   /* OUT: Pointer to output buffer */
-);
-
-/*
-** CAPI3REF: Delete A Changegroup Object
-** DESTRUCTOR: tdsqlite3_changegroup
-*/
-void tdsqlite3changegroup_delete(tdsqlite3_changegroup*);
-
-/*
-** CAPI3REF: Apply A Changeset To A Database
-**
-** Apply a changeset or patchset to a database. These functions attempt to
-** update the "main" database attached to handle db with the changes found in
-** the changeset passed via the second and third arguments. 
-**
-** The fourth argument (xFilter) passed to these functions is the "filter
-** callback". If it is not NULL, then for each table affected by at least one
-** change in the changeset, the filter callback is invoked with
-** the table name as the second argument, and a copy of the context pointer
-** passed as the sixth argument as the first. If the "filter callback"
-** returns zero, then no attempt is made to apply any changes to the table.
-** Otherwise, if the return value is non-zero or the xFilter argument to
-** is NULL, all changes related to the table are attempted.
-**
-** For each table that is not excluded by the filter callback, this function 
-** tests that the target database contains a compatible table. A table is 
-** considered compatible if all of the following are true:
-**
-** <ul>
-**   <li> The table has the same name as the name recorded in the 
-**        changeset, and
-**   <li> The table has at least as many columns as recorded in the 
-**        changeset, and
-**   <li> The table has primary key columns in the same position as 
-**        recorded in the changeset.
-** </ul>
-**
-** If there is no compatible table, it is not an error, but none of the
-** changes associated with the table are applied. A warning message is issued
-** via the tdsqlite3_log() mechanism with the error code SQLITE_SCHEMA. At most
-** one such warning is issued for each table in the changeset.
-**
-** For each change for which there is a compatible table, an attempt is made 
-** to modify the table contents according to the UPDATE, INSERT or DELETE 
-** change. If a change cannot be applied cleanly, the conflict handler 
-** function passed as the fifth argument to tdsqlite3changeset_apply() may be 
-** invoked. A description of exactly when the conflict handler is invoked for 
-** each type of change is below.
-**
-** Unlike the xFilter argument, xConflict may not be passed NULL. The results
-** of passing anything other than a valid function pointer as the xConflict
-** argument are undefined.
-**
-** Each time the conflict handler function is invoked, it must return one
-** of [SQLITE_CHANGESET_OMIT], [SQLITE_CHANGESET_ABORT] or 
-** [SQLITE_CHANGESET_REPLACE]. SQLITE_CHANGESET_REPLACE may only be returned
-** if the second argument passed to the conflict handler is either
-** SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT. If the conflict-handler
-** returns an illegal value, any changes already made are rolled back and
-** the call to tdsqlite3changeset_apply() returns SQLITE_MISUSE. Different 
-** actions are taken by tdsqlite3changeset_apply() depending on the value
-** returned by each invocation of the conflict-handler function. Refer to
-** the documentation for the three 
-** [SQLITE_CHANGESET_OMIT|available return values] for details.
-**
-** <dl>
-** <dt>DELETE Changes<dd>
-**   For each DELETE change, the function checks if the target database 
-**   contains a row with the same primary key value (or values) as the 
-**   original row values stored in the changeset. If it does, and the values 
-**   stored in all non-primary key columns also match the values stored in 
-**   the changeset the row is deleted from the target database.
-**
-**   If a row with matching primary key values is found, but one or more of
-**   the non-primary key fields contains a value different from the original
-**   row value stored in the changeset, the conflict-handler function is
-**   invoked with [SQLITE_CHANGESET_DATA] as the second argument. If the
-**   database table has more columns than are recorded in the changeset,
-**   only the values of those non-primary key fields are compared against
-**   the current database contents - any trailing database table columns
-**   are ignored.
-**
-**   If no row with matching primary key values is found in the database,
-**   the conflict-handler function is invoked with [SQLITE_CHANGESET_NOTFOUND]
-**   passed as the second argument.
-**
-**   If the DELETE operation is attempted, but SQLite returns SQLITE_CONSTRAINT
-**   (which can only happen if a foreign key constraint is violated), the
-**   conflict-handler function is invoked with [SQLITE_CHANGESET_CONSTRAINT]
-**   passed as the second argument. This includes the case where the DELETE
-**   operation is attempted because an earlier call to the conflict handler
-**   function returned [SQLITE_CHANGESET_REPLACE].
-**
-** <dt>INSERT Changes<dd>
-**   For each INSERT change, an attempt is made to insert the new row into
-**   the database. If the changeset row contains fewer fields than the
-**   database table, the trailing fields are populated with their default
-**   values.
-**
-**   If the attempt to insert the row fails because the database already 
-**   contains a row with the same primary key values, the conflict handler
-**   function is invoked with the second argument set to 
-**   [SQLITE_CHANGESET_CONFLICT].
-**
-**   If the attempt to insert the row fails because of some other constraint
-**   violation (e.g. NOT NULL or UNIQUE), the conflict handler function is 
-**   invoked with the second argument set to [SQLITE_CHANGESET_CONSTRAINT].
-**   This includes the case where the INSERT operation is re-attempted because 
-**   an earlier call to the conflict handler function returned 
-**   [SQLITE_CHANGESET_REPLACE].
-**
-** <dt>UPDATE Changes<dd>
-**   For each UPDATE change, the function checks if the target database 
-**   contains a row with the same primary key value (or values) as the 
-**   original row values stored in the changeset. If it does, and the values 
-**   stored in all modified non-primary key columns also match the values
-**   stored in the changeset the row is updated within the target database.
-**
-**   If a row with matching primary key values is found, but one or more of
-**   the modified non-primary key fields contains a value different from an
-**   original row value stored in the changeset, the conflict-handler function
-**   is invoked with [SQLITE_CHANGESET_DATA] as the second argument. Since
-**   UPDATE changes only contain values for non-primary key fields that are
-**   to be modified, only those fields need to match the original values to
-**   avoid the SQLITE_CHANGESET_DATA conflict-handler callback.
-**
-**   If no row with matching primary key values is found in the database,
-**   the conflict-handler function is invoked with [SQLITE_CHANGESET_NOTFOUND]
-**   passed as the second argument.
-**
-**   If the UPDATE operation is attempted, but SQLite returns 
-**   SQLITE_CONSTRAINT, the conflict-handler function is invoked with 
-**   [SQLITE_CHANGESET_CONSTRAINT] passed as the second argument.
-**   This includes the case where the UPDATE operation is attempted after 
-**   an earlier call to the conflict handler function returned
-**   [SQLITE_CHANGESET_REPLACE].  
-** </dl>
-**
-** It is safe to execute SQL statements, including those that write to the
-** table that the callback related to, from within the xConflict callback.
-** This can be used to further customize the application's conflict
-** resolution strategy.
-**
-** All changes made by these functions are enclosed in a savepoint transaction.
-** If any other error (aside from a constraint failure when attempting to
-** write to the target database) occurs, then the savepoint transaction is
-** rolled back, restoring the target database to its original state, and an 
-** SQLite error code returned.
-**
-** If the output parameters (ppRebase) and (pnRebase) are non-NULL and
-** the input is a changeset (not a patchset), then tdsqlite3changeset_apply_v2()
-** may set (*ppRebase) to point to a "rebase" that may be used with the 
-** tdsqlite3_rebaser APIs buffer before returning. In this case (*pnRebase)
-** is set to the size of the buffer in bytes. It is the responsibility of the
-** caller to eventually free any such buffer using tdsqlite3_free(). The buffer
-** is only allocated and populated if one or more conflicts were encountered
-** while applying the patchset. See comments surrounding the tdsqlite3_rebaser
-** APIs for further details.
-**
-** The behavior of tdsqlite3changeset_apply_v2() and its streaming equivalent
-** may be modified by passing a combination of
-** [SQLITE_CHANGESETAPPLY_NOSAVEPOINT | supported flags] as the 9th parameter.
-**
-** Note that the tdsqlite3changeset_apply_v2() API is still <b>experimental</b>
-** and therefore subject to change.
-*/
-int tdsqlite3changeset_apply(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int nChangeset,                 /* Size of changeset in bytes */
-  void *pChangeset,               /* Changeset blob */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx                      /* First argument passed to xConflict */
-);
-int tdsqlite3changeset_apply_v2(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int nChangeset,                 /* Size of changeset in bytes */
-  void *pChangeset,               /* Changeset blob */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase, /* OUT: Rebase data */
-  int flags                       /* SESSION_CHANGESETAPPLY_* flags */
-);
-
-/*
-** CAPI3REF: Flags for tdsqlite3changeset_apply_v2
-**
-** The following flags may passed via the 9th parameter to
-** [tdsqlite3changeset_apply_v2] and [tdsqlite3changeset_apply_v2_strm]:
-**
-** <dl>
-** <dt>SQLITE_CHANGESETAPPLY_NOSAVEPOINT <dd>
-**   Usually, the sessions module encloses all operations performed by
-**   a single call to apply_v2() or apply_v2_strm() in a [SAVEPOINT]. The
-**   SAVEPOINT is committed if the changeset or patchset is successfully
-**   applied, or rolled back if an error occurs. Specifying this flag
-**   causes the sessions module to omit this savepoint. In this case, if the
-**   caller has an open transaction or savepoint when apply_v2() is called, 
-**   it may revert the partially applied changeset by rolling it back.
-**
-** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
-**   Invert the changeset before applying it. This is equivalent to inverting
-**   a changeset using tdsqlite3changeset_invert() before applying it. It is
-**   an error to specify this flag with a patchset.
-*/
-#define SQLITE_CHANGESETAPPLY_NOSAVEPOINT   0x0001
-#define SQLITE_CHANGESETAPPLY_INVERT        0x0002
-
-/* 
-** CAPI3REF: Constants Passed To The Conflict Handler
-**
-** Values that may be passed as the second argument to a conflict-handler.
-**
-** <dl>
-** <dt>SQLITE_CHANGESET_DATA<dd>
-**   The conflict handler is invoked with CHANGESET_DATA as the second argument
-**   when processing a DELETE or UPDATE change if a row with the required
-**   PRIMARY KEY fields is present in the database, but one or more other 
-**   (non primary-key) fields modified by the update do not contain the 
-**   expected "before" values.
-** 
-**   The conflicting row, in this case, is the database row with the matching
-**   primary key.
-** 
-** <dt>SQLITE_CHANGESET_NOTFOUND<dd>
-**   The conflict handler is invoked with CHANGESET_NOTFOUND as the second
-**   argument when processing a DELETE or UPDATE change if a row with the
-**   required PRIMARY KEY fields is not present in the database.
-** 
-**   There is no conflicting row in this case. The results of invoking the
-**   tdsqlite3changeset_conflict() API are undefined.
-** 
-** <dt>SQLITE_CHANGESET_CONFLICT<dd>
-**   CHANGESET_CONFLICT is passed as the second argument to the conflict
-**   handler while processing an INSERT change if the operation would result 
-**   in duplicate primary key values.
-** 
-**   The conflicting row in this case is the database row with the matching
-**   primary key.
-**
-** <dt>SQLITE_CHANGESET_FOREIGN_KEY<dd>
-**   If foreign key handling is enabled, and applying a changeset leaves the
-**   database in a state containing foreign key violations, the conflict 
-**   handler is invoked with CHANGESET_FOREIGN_KEY as the second argument
-**   exactly once before the changeset is committed. If the conflict handler
-**   returns CHANGESET_OMIT, the changes, including those that caused the
-**   foreign key constraint violation, are committed. Or, if it returns
-**   CHANGESET_ABORT, the changeset is rolled back.
-**
-**   No current or conflicting row information is provided. The only function
-**   it is possible to call on the supplied tdsqlite3_changeset_iter handle
-**   is tdsqlite3changeset_fk_conflicts().
-** 
-** <dt>SQLITE_CHANGESET_CONSTRAINT<dd>
-**   If any other constraint violation occurs while applying a change (i.e. 
-**   a UNIQUE, CHECK or NOT NULL constraint), the conflict handler is 
-**   invoked with CHANGESET_CONSTRAINT as the second argument.
-** 
-**   There is no conflicting row in this case. The results of invoking the
-**   tdsqlite3changeset_conflict() API are undefined.
-**
-** </dl>
-*/
-#define SQLITE_CHANGESET_DATA        1
-#define SQLITE_CHANGESET_NOTFOUND    2
-#define SQLITE_CHANGESET_CONFLICT    3
-#define SQLITE_CHANGESET_CONSTRAINT  4
-#define SQLITE_CHANGESET_FOREIGN_KEY 5
-
-/* 
-** CAPI3REF: Constants Returned By The Conflict Handler
-**
-** A conflict handler callback must return one of the following three values.
-**
-** <dl>
-** <dt>SQLITE_CHANGESET_OMIT<dd>
-**   If a conflict handler returns this value no special action is taken. The
-**   change that caused the conflict is not applied. The session module 
-**   continues to the next change in the changeset.
-**
-** <dt>SQLITE_CHANGESET_REPLACE<dd>
-**   This value may only be returned if the second argument to the conflict
-**   handler was SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT. If this
-**   is not the case, any changes applied so far are rolled back and the 
-**   call to tdsqlite3changeset_apply() returns SQLITE_MISUSE.
-**
-**   If CHANGESET_REPLACE is returned by an SQLITE_CHANGESET_DATA conflict
-**   handler, then the conflicting row is either updated or deleted, depending
-**   on the type of change.
-**
-**   If CHANGESET_REPLACE is returned by an SQLITE_CHANGESET_CONFLICT conflict
-**   handler, then the conflicting row is removed from the database and a
-**   second attempt to apply the change is made. If this second attempt fails,
-**   the original row is restored to the database before continuing.
-**
-** <dt>SQLITE_CHANGESET_ABORT<dd>
-**   If this value is returned, any changes applied so far are rolled back 
-**   and the call to tdsqlite3changeset_apply() returns SQLITE_ABORT.
-** </dl>
-*/
-#define SQLITE_CHANGESET_OMIT       0
-#define SQLITE_CHANGESET_REPLACE    1
-#define SQLITE_CHANGESET_ABORT      2
-
-/* 
-** CAPI3REF: Rebasing changesets
-** EXPERIMENTAL
-**
-** Suppose there is a site hosting a database in state S0. And that
-** modifications are made that move that database to state S1 and a
-** changeset recorded (the "local" changeset). Then, a changeset based
-** on S0 is received from another site (the "remote" changeset) and 
-** applied to the database. The database is then in state 
-** (S1+"remote"), where the exact state depends on any conflict
-** resolution decisions (OMIT or REPLACE) made while applying "remote".
-** Rebasing a changeset is to update it to take those conflict 
-** resolution decisions into account, so that the same conflicts
-** do not have to be resolved elsewhere in the network. 
-**
-** For example, if both the local and remote changesets contain an
-** INSERT of the same key on "CREATE TABLE t1(a PRIMARY KEY, b)":
-**
-**   local:  INSERT INTO t1 VALUES(1, 'v1');
-**   remote: INSERT INTO t1 VALUES(1, 'v2');
-**
-** and the conflict resolution is REPLACE, then the INSERT change is
-** removed from the local changeset (it was overridden). Or, if the
-** conflict resolution was "OMIT", then the local changeset is modified
-** to instead contain:
-**
-**           UPDATE t1 SET b = 'v2' WHERE a=1;
-**
-** Changes within the local changeset are rebased as follows:
-**
-** <dl>
-** <dt>Local INSERT<dd>
-**   This may only conflict with a remote INSERT. If the conflict 
-**   resolution was OMIT, then add an UPDATE change to the rebased
-**   changeset. Or, if the conflict resolution was REPLACE, add
-**   nothing to the rebased changeset.
-**
-** <dt>Local DELETE<dd>
-**   This may conflict with a remote UPDATE or DELETE. In both cases the
-**   only possible resolution is OMIT. If the remote operation was a
-**   DELETE, then add no change to the rebased changeset. If the remote
-**   operation was an UPDATE, then the old.* fields of change are updated
-**   to reflect the new.* values in the UPDATE.
-**
-** <dt>Local UPDATE<dd>
-**   This may conflict with a remote UPDATE or DELETE. If it conflicts
-**   with a DELETE, and the conflict resolution was OMIT, then the update
-**   is changed into an INSERT. Any undefined values in the new.* record
-**   from the update change are filled in using the old.* values from
-**   the conflicting DELETE. Or, if the conflict resolution was REPLACE,
-**   the UPDATE change is simply omitted from the rebased changeset.
-**
-**   If conflict is with a remote UPDATE and the resolution is OMIT, then
-**   the old.* values are rebased using the new.* values in the remote
-**   change. Or, if the resolution is REPLACE, then the change is copied
-**   into the rebased changeset with updates to columns also updated by
-**   the conflicting remote UPDATE removed. If this means no columns would 
-**   be updated, the change is omitted.
-** </dl>
-**
-** A local change may be rebased against multiple remote changes 
-** simultaneously. If a single key is modified by multiple remote 
-** changesets, they are combined as follows before the local changeset
-** is rebased:
-**
-** <ul>
-**    <li> If there has been one or more REPLACE resolutions on a
-**         key, it is rebased according to a REPLACE.
-**
-**    <li> If there have been no REPLACE resolutions on a key, then
-**         the local changeset is rebased according to the most recent
-**         of the OMIT resolutions.
-** </ul>
-**
-** Note that conflict resolutions from multiple remote changesets are 
-** combined on a per-field basis, not per-row. This means that in the 
-** case of multiple remote UPDATE operations, some fields of a single 
-** local change may be rebased for REPLACE while others are rebased for 
-** OMIT.
-**
-** In order to rebase a local changeset, the remote changeset must first
-** be applied to the local database using tdsqlite3changeset_apply_v2() and
-** the buffer of rebase information captured. Then:
-**
-** <ol>
-**   <li> An tdsqlite3_rebaser object is created by calling 
-**        tdsqlite3rebaser_create().
-**   <li> The new object is configured with the rebase buffer obtained from
-**        tdsqlite3changeset_apply_v2() by calling tdsqlite3rebaser_configure().
-**        If the local changeset is to be rebased against multiple remote
-**        changesets, then tdsqlite3rebaser_configure() should be called
-**        multiple times, in the same order that the multiple
-**        tdsqlite3changeset_apply_v2() calls were made.
-**   <li> Each local changeset is rebased by calling tdsqlite3rebaser_rebase().
-**   <li> The tdsqlite3_rebaser object is deleted by calling
-**        tdsqlite3rebaser_delete().
-** </ol>
-*/
-typedef struct tdsqlite3_rebaser tdsqlite3_rebaser;
-
-/*
-** CAPI3REF: Create a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Allocate a new changeset rebaser object. If successful, set (*ppNew) to
-** point to the new object and return SQLITE_OK. Otherwise, if an error
-** occurs, return an SQLite error code (e.g. SQLITE_NOMEM) and set (*ppNew) 
-** to NULL. 
-*/
-int tdsqlite3rebaser_create(tdsqlite3_rebaser **ppNew);
-
-/*
-** CAPI3REF: Configure a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Configure the changeset rebaser object to rebase changesets according
-** to the conflict resolutions described by buffer pRebase (size nRebase
-** bytes), which must have been obtained from a previous call to
-** tdsqlite3changeset_apply_v2().
-*/
-int tdsqlite3rebaser_configure(
-  tdsqlite3_rebaser*, 
-  int nRebase, const void *pRebase
-); 
-
-/*
-** CAPI3REF: Rebase a changeset
-** EXPERIMENTAL
-**
-** Argument pIn must point to a buffer containing a changeset nIn bytes
-** in size. This function allocates and populates a buffer with a copy
-** of the changeset rebased according to the configuration of the
-** rebaser object passed as the first argument. If successful, (*ppOut)
-** is set to point to the new buffer containing the rebased changeset and 
-** (*pnOut) to its size in bytes and SQLITE_OK returned. It is the
-** responsibility of the caller to eventually free the new buffer using
-** tdsqlite3_free(). Otherwise, if an error occurs, (*ppOut) and (*pnOut)
-** are set to zero and an SQLite error code returned.
-*/
-int tdsqlite3rebaser_rebase(
-  tdsqlite3_rebaser*,
-  int nIn, const void *pIn, 
-  int *pnOut, void **ppOut 
-);
-
-/*
-** CAPI3REF: Delete a changeset rebaser object.
-** EXPERIMENTAL
-**
-** Delete the changeset rebaser object and all associated resources. There
-** should be one call to this function for each successful invocation
-** of tdsqlite3rebaser_create().
-*/
-void tdsqlite3rebaser_delete(tdsqlite3_rebaser *p); 
-
-/*
-** CAPI3REF: Streaming Versions of API functions.
-**
-** The six streaming API xxx_strm() functions serve similar purposes to the 
-** corresponding non-streaming API functions:
-**
-** <table border=1 style="margin-left:8ex;margin-right:8ex">
-**   <tr><th>Streaming function<th>Non-streaming equivalent</th>
-**   <tr><td>tdsqlite3changeset_apply_strm<td>[tdsqlite3changeset_apply] 
-**   <tr><td>tdsqlite3changeset_apply_strm_v2<td>[tdsqlite3changeset_apply_v2] 
-**   <tr><td>tdsqlite3changeset_concat_strm<td>[tdsqlite3changeset_concat] 
-**   <tr><td>tdsqlite3changeset_invert_strm<td>[tdsqlite3changeset_invert] 
-**   <tr><td>tdsqlite3changeset_start_strm<td>[tdsqlite3changeset_start] 
-**   <tr><td>tdsqlite3session_changeset_strm<td>[tdsqlite3session_changeset] 
-**   <tr><td>tdsqlite3session_patchset_strm<td>[tdsqlite3session_patchset] 
-** </table>
-**
-** Non-streaming functions that accept changesets (or patchsets) as input
-** require that the entire changeset be stored in a single buffer in memory. 
-** Similarly, those that return a changeset or patchset do so by returning 
-** a pointer to a single large buffer allocated using tdsqlite3_malloc(). 
-** Normally this is convenient. However, if an application running in a 
-** low-memory environment is required to handle very large changesets, the
-** large contiguous memory allocations required can become onerous.
-**
-** In order to avoid this problem, instead of a single large buffer, input
-** is passed to a streaming API functions by way of a callback function that
-** the sessions module invokes to incrementally request input data as it is
-** required. In all cases, a pair of API function parameters such as
-**
-**  <pre>
-**  &nbsp;     int nChangeset,
-**  &nbsp;     void *pChangeset,
-**  </pre>
-**
-** Is replaced by:
-**
-**  <pre>
-**  &nbsp;     int (*xInput)(void *pIn, void *pData, int *pnData),
-**  &nbsp;     void *pIn,
-**  </pre>
-**
-** Each time the xInput callback is invoked by the sessions module, the first
-** argument passed is a copy of the supplied pIn context pointer. The second 
-** argument, pData, points to a buffer (*pnData) bytes in size. Assuming no 
-** error occurs the xInput method should copy up to (*pnData) bytes of data 
-** into the buffer and set (*pnData) to the actual number of bytes copied 
-** before returning SQLITE_OK. If the input is completely exhausted, (*pnData) 
-** should be set to zero to indicate this. Or, if an error occurs, an SQLite 
-** error code should be returned. In all cases, if an xInput callback returns
-** an error, all processing is abandoned and the streaming API function
-** returns a copy of the error code to the caller.
-**
-** In the case of tdsqlite3changeset_start_strm(), the xInput callback may be
-** invoked by the sessions module at any point during the lifetime of the
-** iterator. If such an xInput callback returns an error, the iterator enters
-** an error state, whereby all subsequent calls to iterator functions 
-** immediately fail with the same error code as returned by xInput.
-**
-** Similarly, streaming API functions that return changesets (or patchsets)
-** return them in chunks by way of a callback function instead of via a
-** pointer to a single large buffer. In this case, a pair of parameters such
-** as:
-**
-**  <pre>
-**  &nbsp;     int *pnChangeset,
-**  &nbsp;     void **ppChangeset,
-**  </pre>
-**
-** Is replaced by:
-**
-**  <pre>
-**  &nbsp;     int (*xOutput)(void *pOut, const void *pData, int nData),
-**  &nbsp;     void *pOut
-**  </pre>
-**
-** The xOutput callback is invoked zero or more times to return data to
-** the application. The first parameter passed to each call is a copy of the
-** pOut pointer supplied by the application. The second parameter, pData,
-** points to a buffer nData bytes in size containing the chunk of output
-** data being returned. If the xOutput callback successfully processes the
-** supplied data, it should return SQLITE_OK to indicate success. Otherwise,
-** it should return some other SQLite error code. In this case processing
-** is immediately abandoned and the streaming API function returns a copy
-** of the xOutput error code to the application.
-**
-** The sessions module never invokes an xOutput callback with the third 
-** parameter set to a value less than or equal to zero. Other than this,
-** no guarantees are made as to the size of the chunks of data returned.
-*/
-int tdsqlite3changeset_apply_strm(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
-  void *pIn,                                          /* First arg for xInput */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx                      /* First argument passed to xConflict */
-);
-int tdsqlite3changeset_apply_v2_strm(
-  tdsqlite3 *db,                    /* Apply change to "main" db of this handle */
-  int (*xInput)(void *pIn, void *pData, int *pnData), /* Input function */
-  void *pIn,                                          /* First arg for xInput */
-  int(*xFilter)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    const char *zTab              /* Table name */
-  ),
-  int(*xConflict)(
-    void *pCtx,                   /* Copy of sixth arg to _apply() */
-    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
-    tdsqlite3_changeset_iter *p     /* Handle describing change and conflict */
-  ),
-  void *pCtx,                     /* First argument passed to xConflict */
-  void **ppRebase, int *pnRebase,
-  int flags
-);
-int tdsqlite3changeset_concat_strm(
-  int (*xInputA)(void *pIn, void *pData, int *pnData),
-  void *pInA,
-  int (*xInputB)(void *pIn, void *pData, int *pnData),
-  void *pInB,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-int tdsqlite3changeset_invert_strm(
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-int tdsqlite3changeset_start_strm(
-  tdsqlite3_changeset_iter **pp,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn
-);
-int tdsqlite3changeset_start_v2_strm(
-  tdsqlite3_changeset_iter **pp,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int flags
-);
-int tdsqlite3session_changeset_strm(
-  tdsqlite3_session *pSession,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-int tdsqlite3session_patchset_strm(
-  tdsqlite3_session *pSession,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-int tdsqlite3changegroup_add_strm(tdsqlite3_changegroup*, 
-    int (*xInput)(void *pIn, void *pData, int *pnData),
-    void *pIn
-);
-int tdsqlite3changegroup_output_strm(tdsqlite3_changegroup*,
-    int (*xOutput)(void *pOut, const void *pData, int nData), 
-    void *pOut
-);
-int tdsqlite3rebaser_rebase_strm(
-  tdsqlite3_rebaser *pRebaser,
-  int (*xInput)(void *pIn, void *pData, int *pnData),
-  void *pIn,
-  int (*xOutput)(void *pOut, const void *pData, int nData),
-  void *pOut
-);
-
-/*
-** CAPI3REF: Configure global parameters
-**
-** The tdsqlite3session_config() interface is used to make global configuration
-** changes to the sessions module in order to tune it to the specific needs 
-** of the application.
-**
-** The tdsqlite3session_config() interface is not threadsafe. If it is invoked
-** while any other thread is inside any other sessions method then the
-** results are undefined. Furthermore, if it is invoked after any sessions
-** related objects have been created, the results are also undefined. 
-**
-** The first argument to the tdsqlite3session_config() function must be one
-** of the SQLITE_SESSION_CONFIG_XXX constants defined below. The 
-** interpretation of the (void*) value passed as the second parameter and
-** the effect of calling this function depends on the value of the first
-** parameter.
-**
-** <dl>
-** <dt>SQLITE_SESSION_CONFIG_STRMSIZE<dd>
-**    By default, the sessions module streaming interfaces attempt to input
-**    and output data in approximately 1 KiB chunks. This operand may be used
-**    to set and query the value of this configuration setting. The pointer
-**    passed as the second argument must point to a value of type (int).
-**    If this value is greater than 0, it is used as the new streaming data
-**    chunk size for both input and output. Before returning, the (int) value
-**    pointed to by pArg is set to the final value of the streaming interface
-**    chunk size.
-** </dl>
-**
-** This function returns SQLITE_OK if successful, or an SQLite error code
-** otherwise.
-*/
-int tdsqlite3session_config(int op, void *pArg);
-
-/*
-** CAPI3REF: Values for tdsqlite3session_config().
-*/
-#define SQLITE_SESSION_CONFIG_STRMSIZE 1
-
-/*
-** Make sure we can call this stuff from C++.
-*/
-#ifdef __cplusplus
-}
-#endif
-
-#endif  /* !defined(__SQLITESESSION_H_) && defined(SQLITE_ENABLE_SESSION) */
diff --git a/third-party/td/td/src.ps1 b/third-party/td/td/src.ps1
deleted file mode 100644
index b3f5625537..0000000000
--- a/third-party/td/td/src.ps1
+++ /dev/null
@@ -1 +0,0 @@
-git ls-tree -r HEAD --name-only benchmark example memprof td tdactor tddb tde2e tdnet tdtl tdutils test | Select-String "\.cpp$|\.h$|\.hpp$"
diff --git a/third-party/td/td/src.sh b/third-party/td/td/src.sh
deleted file mode 100755
index 4a4dcd4003..0000000000
--- a/third-party/td/td/src.sh
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/bash
-git ls-tree -r HEAD --name-only benchmark example memprof td tdactor tddb tde2e tdnet tdtl tdutils test | grep -E "\.cpp$|\.h$|\.hpp$"
diff --git a/third-party/td/td/td/generate/CMakeLists.txt b/third-party/td/td/td/generate/CMakeLists.txt
deleted file mode 100644
index f6ed78a0fb..0000000000
--- a/third-party/td/td/td/generate/CMakeLists.txt
+++ /dev/null
@@ -1,228 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-if (NOT DEFINED CMAKE_INSTALL_BINDIR)
-  set(CMAKE_INSTALL_BINDIR "bin")
-endif()
-
-file(MAKE_DIRECTORY auto/td/telegram)
-file(MAKE_DIRECTORY auto/td/mtproto)
-file(MAKE_DIRECTORY auto/tlo)
-
-set(TL_TD_AUTO_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/auto PARENT_SCOPE)
-
-set(TD_AUTO_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/auto/td)
-
-set(TL_MTPROTO_AUTO_SOURCE
-  ${TD_AUTO_INCLUDE_DIR}/mtproto/mtproto_api.cpp
-  ${TD_AUTO_INCLUDE_DIR}/mtproto/mtproto_api.h
-  ${TD_AUTO_INCLUDE_DIR}/mtproto/mtproto_api.hpp
-  PARENT_SCOPE
-)
-
-set(TL_TD_AUTO_SOURCE
-  ${TD_AUTO_INCLUDE_DIR}/telegram/telegram_api.cpp
-  ${TD_AUTO_INCLUDE_DIR}/telegram/telegram_api.h
-  ${TD_AUTO_INCLUDE_DIR}/telegram/telegram_api.hpp
-  ${TD_AUTO_INCLUDE_DIR}/telegram/secret_api.cpp
-  ${TD_AUTO_INCLUDE_DIR}/telegram/secret_api.h
-  ${TD_AUTO_INCLUDE_DIR}/telegram/secret_api.hpp
-  PARENT_SCOPE
-)
-
-set(TL_E2E_AUTO_SOURCE
-  ${TD_AUTO_INCLUDE_DIR}/telegram/e2e_api.cpp
-  ${TD_AUTO_INCLUDE_DIR}/telegram/e2e_api.h
-  ${TD_AUTO_INCLUDE_DIR}/telegram/e2e_api.hpp
-  PARENT_SCOPE
-)
-
-set(TL_TD_API_AUTO_SOURCE
-  ${TD_AUTO_INCLUDE_DIR}/telegram/td_api.cpp
-  ${TD_AUTO_INCLUDE_DIR}/telegram/td_api.h
-  ${TD_AUTO_INCLUDE_DIR}/telegram/td_api.hpp
-  PARENT_SCOPE
-)
-
-set(TL_TD_JSON_AUTO_SOURCE
-  ${TD_AUTO_INCLUDE_DIR}/telegram/td_api_json.cpp
-  ${TD_AUTO_INCLUDE_DIR}/telegram/td_api_json.h
-  PARENT_SCOPE
-)
-
-set(TL_C_AUTO_SOURCE
-  ${TD_AUTO_INCLUDE_DIR}/telegram/td_tdc_api.cpp
-  ${TD_AUTO_INCLUDE_DIR}/telegram/td_tdc_api.h
-  ${TD_AUTO_INCLUDE_DIR}/telegram/td_tdc_api_inner.h
-  PARENT_SCOPE
-)
-
-set(TL_DOTNET_AUTO_SOURCE
-  ${TD_AUTO_INCLUDE_DIR}/telegram/TdDotNetApi.cpp
-  ${TD_AUTO_INCLUDE_DIR}/telegram/TdDotNetApi.h
-  PARENT_SCOPE
-)
-
-set(TL_WRITER_CPP_SOURCE
-  tl_writer_cpp.cpp
-  tl_writer_h.cpp
-  tl_writer_hpp.cpp
-  tl_writer_jni_cpp.cpp
-  tl_writer_jni_h.cpp
-  tl_writer_td.cpp
-
-  tl_writer_cpp.h
-  tl_writer_h.h
-  tl_writer_hpp.h
-  tl_writer_jni_cpp.h
-  tl_writer_jni_h.h
-  tl_writer_td.h
-)
-
-set(TL_GENERATE_MTPROTO_SOURCE
-  generate_mtproto.cpp
-)
-
-set(TL_GENERATE_COMMON_SOURCE
-  generate_common.cpp
-)
-
-set(TL_GENERATE_C_SOURCE
-  generate_c.cpp
-
-  tl_writer_c.h
-)
-
-set(TL_GENERATE_JAVA_SOURCE
-  generate_java.cpp
-
-  tl_writer_java.cpp
-
-  tl_writer_java.h
-)
-
-set(TL_GENERATE_JSON_SOURCE
-  generate_json.cpp
-
-  tl_json_converter.cpp
-
-  tl_json_converter.h
-)
-
-if (NOT CMAKE_CROSSCOMPILING)
-  find_program(PHP_EXECUTABLE php)
-
-  if ((CMAKE_SYSTEM_NAME MATCHES "FreeBSD") AND (CMAKE_SYSTEM_VERSION MATCHES "HBSD"))
-    set(PHP_EXECUTABLE "PHP_EXECUTABLE-NOTFOUND")
-  endif()
-
-  if (PHP_EXECUTABLE AND NOT TD_ENABLE_DOTNET)
-    set(GENERATE_COMMON_CMD generate_common && ${PHP_EXECUTABLE} ../DoxygenTlDocumentationGenerator.php ../scheme/td_api.tl td/telegram/td_api.h)
-  else()
-    set(GENERATE_COMMON_CMD generate_common)
-  endif()
-
-  add_subdirectory(tl-parser)
-
-  set(TLO_AUTO_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/auto/tlo)
-  set(TLO_FILES ${TLO_AUTO_INCLUDE_DIR}/mtproto_api.tlo ${TLO_AUTO_INCLUDE_DIR}/secret_api.tlo ${TLO_AUTO_INCLUDE_DIR}/e2e_api.tlo ${TLO_AUTO_INCLUDE_DIR}/td_api.tlo ${TLO_AUTO_INCLUDE_DIR}/telegram_api.tlo)
-  set(TD_API_TLO_FILE ${TLO_AUTO_INCLUDE_DIR}/td_api.tlo)
-
-  # Ninja generator uses relative paths and can't correctly handle these dependencies
-  # See https://gitlab.kitware.com/cmake/cmake/-/issues/13894
-  if (CMAKE_GENERATOR STREQUAL "Ninja")
-    set(TLO_FILES)
-    set(TD_API_TLO_FILE)
-  endif()
-
-  add_custom_target(tl_generate_tlo
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND tl-parser -e auto/tlo/mtproto_api.tlo scheme/mtproto_api.tl
-    COMMAND tl-parser -e auto/tlo/secret_api.tlo scheme/secret_api.tl
-    COMMAND tl-parser -e auto/tlo/e2e_api.tlo scheme/e2e_api.tl
-    COMMAND tl-parser -e auto/tlo/td_api.tlo scheme/td_api.tl
-    COMMAND tl-parser -e auto/tlo/telegram_api.tlo scheme/telegram_api.tl
-    COMMENT "Generate TLO files"
-    DEPENDS tl-parser ${CMAKE_CURRENT_SOURCE_DIR}/scheme/mtproto_api.tl ${CMAKE_CURRENT_SOURCE_DIR}/scheme/secret_api.tl ${CMAKE_CURRENT_SOURCE_DIR}/scheme/e2e_api.tl ${CMAKE_CURRENT_SOURCE_DIR}/scheme/td_api.tl ${CMAKE_CURRENT_SOURCE_DIR}/scheme/telegram_api.tl
-  )
-
-  add_library(tl_writer_cpp STATIC ${TL_WRITER_CPP_SOURCE})
-  target_link_libraries(tl_writer_cpp PRIVATE tdtl)
-  target_include_directories(tl_writer_cpp PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-  if (TD_ENABLE_JNI)
-    target_compile_definitions(tl_writer_cpp PRIVATE TD_ENABLE_JNI=1 GIT_COMMIT_HASH=${TD_GIT_COMMIT_HASH})
-  endif()
-  if (TD_ENABLE_DOTNET)
-    target_compile_definitions(tl_writer_cpp PRIVATE DISABLE_HPP_DOCUMENTATION=1)
-  endif()
-
-  add_executable(generate_mtproto ${TL_GENERATE_MTPROTO_SOURCE})
-  target_link_libraries(generate_mtproto PRIVATE tdtl tl_writer_cpp)
-  add_custom_target(tl_generate_mtproto
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/auto
-    COMMAND generate_mtproto
-    COMMENT "Generate MTProto API source files"
-    DEPENDS generate_mtproto tl_generate_tlo ${TLO_FILES}
-  )
-
-  add_executable(generate_common ${TL_GENERATE_COMMON_SOURCE})
-  target_link_libraries(generate_common PRIVATE tdtl tl_writer_cpp)
-  add_custom_target(tl_generate_common
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/auto
-    COMMAND ${GENERATE_COMMON_CMD}
-    COMMENT "Generate common TL source files"
-    DEPENDS generate_common tl_generate_tlo ${TLO_FILES} ${CMAKE_CURRENT_SOURCE_DIR}/scheme/td_api.tl ${CMAKE_CURRENT_SOURCE_DIR}/DoxygenTlDocumentationGenerator.php
-  )
-  if (TD_ENABLE_JNI)
-    target_compile_definitions(generate_common PRIVATE TD_ENABLE_JNI=1)
-  endif()
-
-  add_executable(generate_c ${TL_GENERATE_C_SOURCE})
-  target_link_libraries(generate_c PRIVATE tdtl)
-  add_custom_target(tl_generate_c
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/auto
-    COMMAND generate_c
-    COMMENT "Generate C TL source files"
-    DEPENDS generate_c tl_generate_tlo ${TD_API_TLO_FILE} ${CMAKE_CURRENT_SOURCE_DIR}/scheme/td_api.tl
-  )
-
-  add_executable(td_generate_java_api ${TL_GENERATE_JAVA_SOURCE})
-  target_link_libraries(td_generate_java_api PRIVATE tdtl)
-  target_compile_definitions(td_generate_java_api PRIVATE GIT_COMMIT_HASH=${TD_GIT_COMMIT_HASH})
-
-  add_executable(generate_json ${TL_GENERATE_JSON_SOURCE})
-  target_link_libraries(generate_json PRIVATE tdtl tdutils)
-  add_custom_target(tl_generate_json
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/auto
-    COMMAND generate_json
-    COMMENT "Generate JSON TL source files"
-    DEPENDS generate_json tl_generate_tlo ${TD_API_TLO_FILE} ${CMAKE_CURRENT_SOURCE_DIR}/scheme/td_api.tl
-  )
-
-  if (TD_ENABLE_JNI)
-    install(TARGETS td_generate_java_api RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
-    install(FILES JavadocTlDocumentationGenerator.php TlDocumentationGenerator.php DESTINATION "${CMAKE_INSTALL_BINDIR}/td/generate")
-    install(FILES ${TLO_AUTO_INCLUDE_DIR}/td_api.tlo scheme/td_api.tl DESTINATION "${CMAKE_INSTALL_BINDIR}/td/generate/scheme")
-  endif()
-
-  if (TD_ENABLE_DOTNET)
-    if (PHP_EXECUTABLE)
-      set(GENERATE_DOTNET_API_CMD td_generate_dotnet_api ${TD_API_TLO_FILE} && ${PHP_EXECUTABLE} ../DotnetTlDocumentationGenerator.php ../scheme/td_api.tl td/telegram/TdDotNetApi.h)
-    else()
-      set(GENERATE_DOTNET_API_CMD td_generate_dotnet_api ${TD_API_TLO_FILE})
-    endif()
-
-    add_executable(td_generate_dotnet_api generate_dotnet.cpp tl_writer_dotnet.h)
-    target_link_libraries(td_generate_dotnet_api PRIVATE tdtl)
-    add_custom_target(generate_dotnet_api
-      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/auto
-      COMMAND ${GENERATE_DOTNET_API_CMD}
-      COMMENT "Generate .NET API files"
-      DEPENDS td_generate_dotnet_api tl_generate_tlo ${TD_API_TLO_FILE} ${CMAKE_CURRENT_SOURCE_DIR}/scheme/td_api.tl ${CMAKE_CURRENT_SOURCE_DIR}/DotnetTlDocumentationGenerator.php
-    )
-  endif()
-
-  add_executable(remove_documentation remove_documentation.cpp)
-  target_link_libraries(remove_documentation PRIVATE tdtl)
-endif()
diff --git a/third-party/td/td/td/generate/DotnetTlDocumentationGenerator.php b/third-party/td/td/td/generate/DotnetTlDocumentationGenerator.php
deleted file mode 100644
index f6bb561f32..0000000000
--- a/third-party/td/td/td/generate/DotnetTlDocumentationGenerator.php
+++ /dev/null
@@ -1,237 +0,0 @@
-<?php
-
-require_once 'TlDocumentationGenerator.php';
-
-class DotnetTlDocumentationGenerator extends TlDocumentationGenerator
-{
-    protected function escapeDocumentation($doc)
-    {
-        $doc = preg_replace_callback('/(?<!["A-Za-z_\/])[A-Za-z]*_[A-Za-z_]*/',
-            function ($word_matches)
-            {
-                return ucfirst(preg_replace_callback('/_([A-Za-z])/', function ($matches) {return strtoupper($matches[1]);}, $word_matches[0]));
-            }, $doc);
-        $doc = htmlspecialchars($doc, ENT_XML1, 'UTF-8');
-        $doc = str_replace('*/', '*&#47;', $doc);
-        return $doc;
-    }
-
-    protected function getFieldName($name, $class_name)
-    {
-        $name = ucfirst($this->getParameterName($name, $class_name));
-        if ($name === $class_name) {
-          $name .= 'Value';
-        }
-        return $name;
-    }
-
-    protected function getParameterName($name, $class_name)
-    {
-        if (substr($name, 0, 6) === 'param_') {
-            $name = substr($name, 6);
-        }
-        $name = preg_replace_callback('/_([A-Za-z])/', function ($matches) {return strtoupper($matches[1]);}, trim($name));
-        return $name;
-    }
-
-    protected function getClassName($type)
-    {
-        return implode(array_map('ucfirst', explode('.', trim($type, "\r\n ;"))));
-    }
-
-    protected function getTypeName($type)
-    {
-        switch ($type) {
-            case 'Bool':
-                return 'bool';
-            case 'int32':
-                return 'int32';
-            case 'int53':
-            case 'int64':
-                return 'int64';
-            case 'double':
-                return 'float64';
-            case 'string':
-                return 'String^';
-            case 'bytes':
-                return 'Array<BYTE>^';
-            case 'bool':
-            case 'int':
-            case 'long':
-            case 'Int':
-            case 'Long':
-            case 'Int32':
-            case 'Int53':
-            case 'Int64':
-            case 'Double':
-            case 'String':
-            case 'Bytes':
-                $this->printError("Wrong type $type");
-                return '';
-            default:
-                if (substr($type, 0, 6) === 'vector') {
-                    if ($type[6] !== '<' || $type[strlen($type) - 1] !== '>') {
-                        $this->printError("Wrong vector subtype in $type");
-                        return '';
-                    }
-                    return 'Array<'.$this->getTypeName(substr($type, 7, -1)).'>^';
-                }
-
-                if (preg_match('/[^A-Za-z0-9.]/', $type)) {
-                    $this->printError("Wrong type $type");
-                    return '';
-                }
-                return $this->getClassName($type).'^';
-        }
-    }
-
-    protected function getBaseClassName($is_function)
-    {
-        return $is_function ? 'Function' : 'Object';
-    }
-
-    protected function needRemoveLine($line)
-    {
-        return strpos(trim($line), '///') === 0;
-    }
-
-    protected function needSkipLine($line)
-    {
-        $line = trim($line);
-        return !$line || $line === 'public:' || $line === 'private:' || $line[0] === '}' ||
-            strpos($line, 'Unmanaged') > 0 || strpos($line, 'PrivateField') > 0 || strpos($line, 'get()') > 0 ||
-            strpos($line, 'void set(') === 0 || preg_match('/^[a-z]* class .*;/', $line) ||
-            strpos($line, 'namespace ') === 0 || strpos($line, '#include ') === 0;
-    }
-
-    protected function isHeaderLine($line)
-    {
-        return false;
-    }
-
-    protected function extractClassName($line)
-    {
-        if (strpos($line, 'public ref class ') !== false || strpos($line, 'public interface class ') !== false) {
-            return explode(' ', $line)[3];
-        }
-        return '';
-    }
-
-    protected function fixLine($line)
-    {
-        return $line;
-    }
-
-    protected function addGlobalDocumentation()
-    {
-        $this->addDocumentation('public interface class Object : BaseObject {', <<<EOT
-/// <summary>
-/// This class is a base class for all TDLib interface classes.
-/// </summary>
-EOT
-);
-
-        $this->addDocumentation('  virtual String^ ToString() override;', <<<EOT
-  /// <summary>
-  /// Returns string representation of the object.
-  /// </summary>
-  /// <returns>Returns string representation of the object.</returns>
-EOT
-);
-
-        $this->addDocumentation('public interface class Function : BaseObject {', <<<EOT
-/// <summary>
-/// This class is a base class for all TDLib interface function-classes.
-/// </summary>
-EOT
-);
-    }
-
-    protected function addAbstractClassDocumentation($class_name, $documentation)
-    {
-        $this->addDocumentation("public interface class $class_name : Object {", <<<EOT
-/// <summary>
-/// This class is an abstract base class.
-/// $documentation
-/// </summary>
-EOT
-);
-    }
-
-    protected function getFunctionReturnTypeDescription($return_type, $for_constructor)
-    {
-        $shift = $for_constructor ? '  ' : '';
-        return "\r\n$shift/// <para>Returns <see cref=\"".substr($return_type, 0, -1).'"/>.</para>';
-    }
-
-    protected function addClassDocumentation($class_name, $base_class_name, $return_type, $description)
-    {
-        $this->addDocumentation("public ref class $class_name sealed : $base_class_name {", <<<EOT
-/// <summary>
-/// $description
-/// </summary>
-EOT
-);
-    }
-
-    protected function addFieldDocumentation($class_name, $field_name, $type_name, $field_info, $may_be_null)
-    {
-        $end = ';';
-        if ($type_name == $field_name.'^' || ($type_name == 'Message^' && $field_name == 'ReplyToMessage')) {
-            $type_name = '::Telegram::Td::Api::'.$type_name;
-            $end = ' {';
-        } else if ($class_name == "WebPage" && $field_name == "Stickers" && $type_name == "Array<Sticker^>^") {
-            $type_name = 'Array<::Telegram::Td::Api::Sticker^>^';
-            $end = ' {';
-        }
-        $full_line = $class_name."  property $type_name $field_name$end";
-        $this->addDocumentation($full_line, <<<EOT
-  /// <summary>
-  /// $field_info
-  /// </summary>
-EOT
-);
-    }
-
-    protected function addDefaultConstructorDocumentation($class_name, $class_description)
-    {
-        $this->addDocumentation("  $class_name();", <<<EOT
-  /// <summary>
-  /// $class_description
-  /// </summary>
-EOT
-);
-    }
-
-    protected function addFullConstructorDocumentation($class_name, $class_description, $known_fields, $info)
-    {
-        $full_constructor = "  $class_name(";
-        $colon = '';
-        foreach ($known_fields as $name => $type) {
-            $field_type = $this->getTypeName($type);
-            $pos = 0;
-            while (substr($field_type, $pos, 6) === 'Array<') {
-                $pos += 6;
-            }
-            if (substr($field_type, $pos, 4) !== 'BYTE' && substr($field_type, $pos, 6) !== 'String' && ucfirst(substr($field_type, $pos)) === substr($field_type, $pos)) {
-                $field_type = substr($field_type, 0, $pos).'::Telegram::Td::Api::'.substr($field_type, $pos);
-            }
-            $full_constructor .= $colon.$field_type.' '.$this->getParameterName($name, $class_name);
-            $colon = ', ';
-        }
-        $full_constructor .= ');';
-
-        $full_doc = <<<EOT
-  /// <summary>
-  /// $class_description
-  /// </summary>
-EOT;
-        foreach ($known_fields as $name => $type) {
-            $full_doc .= "\r\n  /// <param name=\"".$this->getParameterName($name, $class_name).'">'.$info[$name]."</param>";
-        }
-        $this->addDocumentation($full_constructor, $full_doc);
-    }
-}
-
-$generator = new DotnetTlDocumentationGenerator();
-$generator->generate($argv[1], $argv[2]);
diff --git a/third-party/td/td/td/generate/DoxygenTlDocumentationGenerator.php b/third-party/td/td/td/generate/DoxygenTlDocumentationGenerator.php
deleted file mode 100644
index 5fa507bafe..0000000000
--- a/third-party/td/td/td/generate/DoxygenTlDocumentationGenerator.php
+++ /dev/null
@@ -1,447 +0,0 @@
-<?php
-
-require_once 'TlDocumentationGenerator.php';
-
-class DoxygenTlDocumentationGenerator extends TlDocumentationGenerator
-{
-    private function getParameterTypeName($type)
-    {
-        switch ($type) {
-            case 'Bool':
-                return 'bool ';
-            case 'int32':
-                return 'int32 ';
-            case 'int53':
-                return 'int53 ';
-            case 'int64':
-                return 'int64 ';
-            case 'double':
-                return 'double ';
-            case 'string':
-                return 'string const &';
-            case 'bytes':
-                return 'bytes const &';
-
-            default:
-                if (substr($type, 0, 6) === 'vector') {
-                    if ($type[6] !== '<' || $type[strlen($type) - 1] !== '>') {
-                        return '';
-                    }
-                    return 'array<'.$this->getTypeName(substr($type, 7, -1)).'> &&';
-                }
-
-                if (preg_match('/[^A-Za-z0-9.]/', $type)) {
-                    return '';
-                }
-                return 'object_ptr<'.$this->getClassName($type).'> &&';
-        }
-    }
-
-    protected function escapeDocumentation($doc)
-    {
-        $doc = htmlspecialchars($doc, ENT_COMPAT, 'UTF-8');
-        $doc = preg_replace_callback('/&quot;((http|https|tg):\/\/[^" ]*)&quot;/',
-            function ($quoted_link)
-            {
-                return "&quot;<a href=\"".$quoted_link[1]."\">".$quoted_link[1]."</a>&quot;";
-            }, $doc);
-        $doc = str_replace('*/', '*&#47;', $doc);
-        $doc = str_replace('#', '\#', $doc);
-        return $doc;
-    }
-
-    protected function getFieldName($name, $class_name)
-    {
-        if (substr($name, 0, 6) === 'param_') {
-            $name = substr($name, 6);
-        }
-        return $name.'_';
-    }
-
-    protected function getClassName($type)
-    {
-        return implode(explode('.', trim($type, "\r\n ;")));
-    }
-
-    protected function getTypeName($type)
-    {
-        switch ($type) {
-            case 'Bool':
-                return 'bool';
-            case 'int32':
-                return 'int32';
-            case 'int53':
-                return 'int53';
-            case 'int64':
-                return 'int64';
-            case 'double':
-                return 'double';
-            case 'string':
-                return 'string';
-            case 'bytes':
-                return 'bytes';
-            case 'bool':
-            case 'int':
-            case 'long':
-            case 'Int':
-            case 'Long':
-            case 'Int32':
-            case 'Int53':
-            case 'Int64':
-            case 'Double':
-            case 'String':
-            case 'Bytes':
-                $this->printError("Wrong type $type");
-                return '';
-            default:
-                if (substr($type, 0, 6) === 'vector') {
-                    if ($type[6] !== '<' || $type[strlen($type) - 1] !== '>') {
-                        $this->printError("Wrong vector subtype in $type");
-                        return '';
-                    }
-                    return 'array<'.$this->getTypeName(substr($type, 7, -1)).'>';
-                }
-
-                if (preg_match('/[^A-Za-z0-9.]/', $type)) {
-                    $this->printError("Wrong type $type");
-                    return '';
-                }
-                return 'object_ptr<'.$this->getClassName($type).'>';
-        }
-    }
-
-    protected function getBaseClassName($is_function)
-    {
-        return $is_function ? 'Function' : 'Object';
-    }
-
-    protected function needRemoveLine($line)
-    {
-        $line = trim($line);
-        return strpos($line, '/**') === 0 || strpos($line, '*') === 0 || strpos($line, '///') === 0;
-    }
-
-    protected function needSkipLine($line)
-    {
-        $tline = trim($line);
-        return empty($tline) || $tline[0] === '}' || $tline === 'public:' || strpos($line, '#pragma ') === 0 ||
-            strpos($line, '#include <') === 0 || strpos($tline, 'return ') === 0 || strpos($tline, 'namespace') === 0 ||
-            preg_match('/class [A-Za-z0-9_]*;/', $line) || $tline === 'if (value == nullptr) {' ||
-            strpos($tline, 'result += ') === 0 || strpos($tline, 'result = ') || strpos($tline, ' : values') ||
-            strpos($line, 'JNIEnv') || strpos($line, 'jfieldID') || $tline === 'virtual ~Object() {' ||
-            $tline === 'virtual void store(TlStorerToString &s, const char *field_name) const = 0;' ||
-            $tline === 'const char *&get_package_name_ref();' || $tline === 'const char *get_git_commit_hash();';
-    }
-
-    protected function isHeaderLine($line)
-    {
-        return strpos($line, 'template <') === 0;
-    }
-
-    protected function extractClassName($line)
-    {
-        if (strpos($line, 'class ') === 0) {
-            return explode(' ', trim($line))[1];
-        }
-        return '';
-    }
-
-    protected function fixLine($line)
-    {
-        if (strpos($line, 'ID = ') > 0 || strpos($line, 'ReturnType = ') > 0 || strpos($line, 'using BaseObject = ') === 0) {
-            return substr($line, 0, strpos($line, '='));
-        }
-        if (strpos($line, 'class Function: ') === 0) {
-            return 'class Function';
-        }
-        if (strpos($line, 'class Object {') === 0 || strpos($line, 'class Object: public TlObject {') === 0) {
-            return 'class Object';
-        }
-
-        return $line;
-    }
-
-    protected function addGlobalDocumentation()
-    {
-        $this->addDocumentation('#include "td/tl/TlObject.h"', <<<EOT
-/**
- * \\file
- * Contains declarations of all functions and types which represent a public TDLib interface.
- */
-EOT
-);
-
-        $this->addDocumentation('using int32 = std::int32_t;', <<<EOT
-/**
- * This type is used to store 32-bit signed integers, which can be represented as Number in JSON.
- */
-EOT
-);
-
-        $this->addDocumentation('using int53 = std::int64_t;', <<<EOT
-/**
- * This type is used to store 53-bit signed integers, which can be represented as Number in JSON.
- */
-EOT
-);
-
-        $this->addDocumentation('using int64 = std::int64_t;', <<<EOT
-/**
- * This type is used to store 64-bit signed integers, which can't be represented as Number in JSON and are represented as String instead.
- */
-EOT
-);
-
-        $this->addDocumentation('using string = std::string;', <<<EOT
-/**
- * This type is used to store UTF-8 strings.
- */
-EOT
-);
-
-        $this->addDocumentation('using bytes = std::string;', <<<EOT
-/**
- * This type is used to store arbitrary sequences of bytes. In JSON interface the bytes are base64-encoded.
- */
-EOT
-);
-
-        $this->addDocumentation('using array = std::vector<Type>;', <<<EOT
-/**
- * This type is used to store a list of objects of any type and is represented as Array in JSON.
- */
-EOT
-);
-
-        $this->addDocumentation('using BaseObject', <<<EOT
-/**
- * This class is a base class for all TDLib API classes and functions.
- */
-EOT
-);
-
-        $this->addDocumentation('using object_ptr = ::td::tl_object_ptr<Type>;', <<<EOT
-/**
- * A smart wrapper to store a pointer to a TDLib API object. Can be treated as an analogue of std::unique_ptr.
- */
-EOT
-);
-
-        $this->addDocumentation('object_ptr<Type> make_object(Args &&... args) {', <<<EOT
-/**
- * A function to create a dynamically allocated TDLib API object. Can be treated as an analogue of std::make_unique.
- * Usage example:
- * \\code
- * auto get_me_request = td::td_api::make_object<td::td_api::getMe>();
- * auto message_text = td::td_api::make_object<td::td_api::formattedText>("Hello, world!!!",
- *                     td::td_api::array<td::td_api::object_ptr<td::td_api::textEntity>>());
- * auto send_message_request = td::td_api::make_object<td::td_api::sendMessage>(chat_id, 0, nullptr, nullptr, nullptr,
- *      td::td_api::make_object<td::td_api::inputMessageText>(std::move(message_text), nullptr, true));
- * \\endcode
- *
- * \\tparam Type Type of object to construct.
- * \\param[in] args Arguments to pass to the object constructor.
- * \\return Wrapped pointer to the created object.
- */
-EOT
-);
-
-        $this->addDocumentation('object_ptr<ToType> move_object_as(FromType &&from) {', <<<EOT
-/**
- * A function to cast a wrapped in td::td_api::object_ptr TDLib API object to its subclass or superclass.
- * Casting an object to an incorrect type will lead to undefined behaviour.
- * Usage example:
- * \\code
- * td::td_api::object_ptr<td::td_api::callState> call_state = ...;
- * switch (call_state->get_id()) {
- *   case td::td_api::callStatePending::ID: {
- *     auto state = td::td_api::move_object_as<td::td_api::callStatePending>(call_state);
- *     // use state
- *     break;
- *   }
- *   case td::td_api::callStateExchangingKeys::ID: {
- *     // no additional fields, no casting is needed
- *     break;
- *   }
- *   case td::td_api::callStateReady::ID: {
- *     auto state = td::td_api::move_object_as<td::td_api::callStateReady>(call_state);
- *     // use state
- *     break;
- *   }
- *   case td::td_api::callStateHangingUp::ID: {
- *     // no additional fields, no casting is needed
- *     break;
- *   }
- *   case td::td_api::callStateDiscarded::ID: {
- *     auto state = td::td_api::move_object_as<td::td_api::callStateDiscarded>(call_state);
- *     // use state
- *     break;
- *   }
- *   case td::td_api::callStateError::ID: {
- *     auto state = td::td_api::move_object_as<td::td_api::callStateError>(call_state);
- *     // use state
- *     break;
- *   }
- *   default:
- *     assert(false);
- * }
- * \\endcode
- *
- * \\tparam ToType Type of TDLib API object to move to.
- * \\tparam FromType Type of TDLib API object to move from, this is auto-deduced.
- * \\param[in] from Wrapped in td::td_api::object_ptr pointer to a TDLib API object.
- */
-EOT
-);
-
-        $this->addDocumentation('std::string to_string(const BaseObject &value);', <<<EOT
-/**
- * Returns a string representation of a TDLib API object.
- * \\param[in] value The object.
- * \\return Object string representation.
- */
-EOT
-);
-
-        $this->addDocumentation('std::string to_string(const object_ptr<T> &value) {', <<<EOT
-/**
- * Returns a string representation of a TDLib API object.
- * \\tparam T Object type, auto-deduced.
- * \\param[in] value The object.
- * \\return Object string representation.
- */
-EOT
-);
-
-        $this->addDocumentation('std::string to_string(const std::vector<object_ptr<T>> &values) {', <<<EOT
-/**
- * Returns a string representation of a list of TDLib API objects.
- * \\tparam T Object type, auto-deduced.
- * \\param[in] values The objects.
- * \\return Objects string representation.
- */
-EOT
-);
-
-        $this->addDocumentation('  void store(TlStorerToString &s, const char *field_name) const final;', <<<EOT
-  /**
-   * Helper function for to_string method. Appends string representation of the object to the storer.
-   * \\param[in] s Storer to which object string representation will be appended.
-   * \\param[in] field_name Object field_name if applicable.
-   */
-EOT
-);
-
-        $this->addDocumentation('class Object', <<<EOT
-/**
- * This class is a base class for all TDLib API classes.
- */
-EOT
-);
-
-        $this->addDocumentation('class Function', <<<EOT
-/**
- * This class is a base class for all TDLib API functions.
- */
-EOT
-);
-
-        $this->addDocumentation('  static const std::int32_t ID', <<<EOT
-  /// Identifier uniquely determining a type of the object.
-EOT
-);
-
-        $this->addDocumentation('  std::int32_t get_id() const final {', <<<EOT
-  /**
-   * Returns identifier uniquely determining a type of the object.
-   * \\return this->ID.
-   */
-EOT
-);
-
-        $this->addDocumentation('  virtual std::int32_t get_id() const = 0;', <<<EOT
-  /**
-   * Returns identifier uniquely determining a type of the object.
-   * \\return this->ID.
-   */
-EOT
-);
-
-        $this->addDocumentation('  using ReturnType', <<<EOT
-  /// Typedef for the type returned by the function.
-EOT
-);
-    }
-
-    protected function addAbstractClassDocumentation($class_name, $documentation)
-    {
-        $this->addDocumentation("class $class_name: public Object {", <<<EOT
-/**
- * This class is an abstract base class.
- * $documentation
- */
-EOT
-);
-    }
-
-    protected function getFunctionReturnTypeDescription($return_type, $for_constructor)
-    {
-        $shift = $for_constructor ? '   ' : ' ';
-        return PHP_EOL.$shift.'*'.PHP_EOL.$shift."* Returns $return_type.";
-    }
-
-    protected function addClassDocumentation($class_name, $base_class_name, $return_type, $description)
-    {
-        $this->addDocumentation("class $class_name final : public $base_class_name {", <<<EOT
-/**
- * $description
- */
-EOT
-);
-    }
-
-    protected function addFieldDocumentation($class_name, $field_name, $type_name, $field_info, $may_be_null)
-    {
-        $this->addDocumentation($class_name."  $type_name $field_name;", <<<EOT
-  /// $field_info
-EOT
-);
-    }
-
-    protected function addDefaultConstructorDocumentation($class_name, $class_description)
-    {
-        $this->addDocumentation("  $class_name();", <<<EOT
-  /**
-   * $class_description
-   */
-EOT
-);
-    }
-
-    protected function addFullConstructorDocumentation($class_name, $class_description, $known_fields, $info)
-    {
-        $explicit = count($known_fields) === 1 ? 'explicit ' : '';
-        $full_constructor = "  $explicit$class_name(";
-        $colon = '';
-        foreach ($known_fields as $name => $type) {
-            $full_constructor .= $colon.$this->getParameterTypeName($type).$this->getFieldName($name, $class_name);
-            $colon = ', ';
-        }
-        $full_constructor .= ');';
-
-        $full_doc = <<<EOT
-  /**
-   * $class_description
-   *
-
-EOT;
-        foreach ($known_fields as $name => $type) {
-            $full_doc .= '   * \\param[in] '.$this->getFieldName($name, $class_name).' '.$info[$name].PHP_EOL;
-        }
-        $full_doc .= '   */';
-        $this->addDocumentation($full_constructor, $full_doc);
-    }
-}
-
-$generator = new DoxygenTlDocumentationGenerator();
-$generator->generate($argv[1], $argv[2]);
diff --git a/third-party/td/td/td/generate/JavadocTlDocumentationGenerator.php b/third-party/td/td/td/generate/JavadocTlDocumentationGenerator.php
deleted file mode 100644
index c8729bba73..0000000000
--- a/third-party/td/td/td/generate/JavadocTlDocumentationGenerator.php
+++ /dev/null
@@ -1,294 +0,0 @@
-<?php
-
-require_once 'TlDocumentationGenerator.php';
-
-class JavadocTlDocumentationGenerator extends TlDocumentationGenerator
-{
-    private $nullable_type;
-    private $nullable_annotation;
-    private $java_version;
-
-    protected function escapeDocumentation($doc)
-    {
-        $doc = preg_replace_callback('/(?<!["A-Za-z_\/])[A-Za-z]*_[A-Za-z_]*/',
-            function ($word_matches)
-            {
-                return preg_replace_callback('/_([A-Za-z])/', function ($matches) {return strtoupper($matches[1]);}, $word_matches[0]);
-            }, $doc);
-        $doc = htmlspecialchars($doc, ENT_COMPAT, 'UTF-8');
-        $doc = str_replace('*/', '*&#47;', $doc);
-        return $doc;
-    }
-
-    protected function getFieldName($name, $class_name)
-    {
-        if (substr($name, 0, 6) === 'param_') {
-            $name = substr($name, 6);
-        }
-        return preg_replace_callback('/_([A-Za-z])/', function ($matches) {return strtoupper($matches[1]);}, trim($name));
-    }
-
-    protected function getClassName($type)
-    {
-        return implode(array_map('ucfirst', explode('.', trim($type, "\r\n ;"))));
-    }
-
-    protected function getTypeName($type)
-    {
-        switch ($type) {
-            case 'Bool':
-                return 'boolean';
-            case 'int32':
-                return 'int';
-            case 'int53':
-            case 'int64':
-                return 'long';
-            case 'double':
-                return $type;
-            case 'string':
-                return 'String';
-            case 'bytes':
-                return 'byte[]';
-            case 'bool':
-            case 'int':
-            case 'long':
-            case 'Int':
-            case 'Long':
-            case 'Int32':
-            case 'Int53':
-            case 'Int64':
-            case 'Double':
-            case 'String':
-            case 'Bytes':
-                $this->printError("Wrong type $type");
-                return '';
-            default:
-                if (substr($type, 0, 6) === 'vector') {
-                    if ($type[6] !== '<' || $type[strlen($type) - 1] !== '>') {
-                        $this->printError("Wrong vector subtype in $type");
-                        return '';
-                    }
-                    return $this->getTypeName(substr($type, 7, -1)).'[]';
-                }
-
-                if (preg_match('/[^A-Za-z0-9.]/', $type)) {
-                    $this->printError("Wrong type $type");
-                    return '';
-                }
-                return $this->getClassName($type);
-        }
-    }
-
-    protected function getBaseClassName($is_function)
-    {
-        return $is_function ? 'Function' : 'Object';
-    }
-
-    protected function needRemoveLine($line)
-    {
-        return strpos(trim($line), '/**') === 0 || strpos(trim($line), '*') === 0 ||
-            ($this->nullable_type && strpos($line, $this->nullable_type) > 0);
-    }
-
-    protected function needSkipLine($line)
-    {
-        $line = $this->fixLine(trim($line));
-        return (strpos($line, 'public') !== 0 && !$this->isHeaderLine($line)) || $line === 'public @interface Constructors {}';
-    }
-
-    protected function isHeaderLine($line)
-    {
-        return trim($line) === '@Override' || trim($line) === '@Constructors';
-    }
-
-    protected function extractClassName($line)
-    {
-        if (strpos($line, 'public static class ') > 0) {
-            return preg_split('/( |<|>)/', trim($line))[3];
-        }
-        return '';
-    }
-
-    protected function fixLine($line)
-    {
-        if (strpos($line, 'CONSTRUCTOR = ') > 0) {
-            return substr($line, 0, strpos($line, '='));
-        }
-
-        return $this->nullable_annotation ? str_replace($this->nullable_annotation.' ', '', $line) : $line;
-    }
-
-    protected function addGlobalDocumentation()
-    {
-        if ($this->nullable_type) {
-            $nullable_type_import = "import $this->nullable_type;".PHP_EOL;
-        } else {
-            $nullable_type_import = '';
-        }
-
-        $this->addDocumentation('public class TdApi {', <<<EOT
-$nullable_type_import/**
- * This class contains as static nested classes all other TDLib interface
- * type-classes and function-classes.
- * <p>
- * It has no inner classes, functions or public members.
- */
-EOT
-);
-
-        $this->addDocumentation('    public abstract static class Object {', <<<EOT
-    /**
-     * This class is a base class for all TDLib interface classes.
-     */
-EOT
-);
-
-        $this->addDocumentation("        public Object() {", <<<EOT
-        /**
-         * Default Object constructor.
-         */
-EOT
-);
-
-        $this->addDocumentation('        public abstract int getConstructor();', <<<EOT
-        /**
-         * Returns an identifier uniquely determining type of the object.
-         *
-         * @return a unique identifier of the object type.
-         */
-EOT
-);
-
-        $this->addDocumentation('        public native String toString();', <<<EOT
-        /**
-         * Returns a string representation of the object.
-         *
-         * @return a string representation of the object.
-         */
-EOT
-);
-
-        $this->addDocumentation('    public abstract static class Function<R extends Object> extends Object {', <<<EOT
-    /**
-     * This class is a base class for all TDLib interface function-classes.
-     *
-     * @param <R> The object type that is returned by the function
-     */
-EOT
-);
-
-        $this->addDocumentation("        public Function() {", <<<EOT
-        /**
-         * Default Function constructor.
-         */
-EOT
-);
-
-        $this->addDocumentation('        public static final int CONSTRUCTOR', <<<EOT
-        /**
-         * Identifier uniquely determining type of the object.
-         */
-EOT
-);
-
-        $this->addDocumentation('        public int getConstructor() {', <<<EOT
-        /**
-         * @return this.CONSTRUCTOR
-         */
-EOT
-);
-    }
-
-    protected function addAbstractClassDocumentation($class_name, $documentation)
-    {
-        $this->addDocumentation("    public abstract static class $class_name extends Object {", <<<EOT
-    /**
-     * This class is an abstract base class.
-     * $documentation
-     */
-EOT
-);
-        $this->addDocumentation("        public $class_name() {", <<<EOT
-        /**
-         * Default class constructor.
-         */
-EOT
-);
-    }
-
-    protected function getFunctionReturnTypeDescription($return_type, $for_constructor)
-    {
-        $shift = $for_constructor ? '         ' : '     ';
-        return PHP_EOL.$shift.'*'.PHP_EOL.$shift."* <p> Returns {@link $return_type $return_type} </p>";
-    }
-
-    protected function addClassDocumentation($class_name, $base_class_name, $return_type, $description)
-    {
-        $this->addDocumentation("    public static class $class_name extends ".$base_class_name.(empty($return_type) ? "" : "<".$return_type.">")." {", <<<EOT
-    /**
-     * $description
-     */
-EOT
-);
-    }
-
-    protected function addFieldDocumentation($class_name, $field_name, $type_name, $field_info, $may_be_null)
-    {
-        $full_line = $class_name."        public $type_name $field_name;";
-        $this->addDocumentation($full_line, <<<EOT
-        /**
-         * $field_info
-         */
-EOT
-);
-        if ($may_be_null && $this->nullable_annotation && ($this->java_version >= 8 || substr($type_name, -1) != ']')) {
-            $this->addLineReplacement($full_line, "        $this->nullable_annotation public $type_name $field_name;".PHP_EOL);
-        }
-    }
-
-    protected function addDefaultConstructorDocumentation($class_name, $class_description)
-    {
-        $this->addDocumentation("        public $class_name() {", <<<EOT
-        /**
-         * $class_description
-         */
-EOT
-);
-    }
-
-    protected function addFullConstructorDocumentation($class_name, $class_description, $known_fields, $info)
-    {
-        $full_constructor = "        public $class_name(";
-        $colon = '';
-        foreach ($known_fields as $name => $type) {
-            $full_constructor .= $colon.$this->getTypeName($type).' '.$this->getFieldName($name, $class_name);
-            $colon = ', ';
-        }
-        $full_constructor .= ') {';
-
-        $full_doc = <<<EOT
-        /**
-         * $class_description
-         *
-
-EOT;
-        foreach ($known_fields as $name => $type) {
-            $full_doc .= '         * @param '.$this->getFieldName($name, $class_name).' '.$info[$name].PHP_EOL;
-        }
-        $full_doc .= '         */';
-        $this->addDocumentation($full_constructor, $full_doc);
-    }
-
-    public function __construct($nullable_type, $nullable_annotation, $java_version) {
-        $this->nullable_type = trim($nullable_type);
-        $this->nullable_annotation = trim($nullable_annotation);
-        $this->java_version = intval($java_version);
-    }
-}
-
-$nullable_type = isset($argv[3]) ? $argv[3] : '';
-$nullable_annotation = isset($argv[4]) ? $argv[4] : '';
-$java_version = isset($argv[5]) ? intval($argv[5]) : 7;
-
-$generator = new JavadocTlDocumentationGenerator($nullable_type, $nullable_annotation, $java_version);
-$generator->generate($argv[1], $argv[2]);
diff --git a/third-party/td/td/td/generate/TlDocumentationGenerator.php b/third-party/td/td/td/generate/TlDocumentationGenerator.php
deleted file mode 100644
index e46deafacb..0000000000
--- a/third-party/td/td/td/generate/TlDocumentationGenerator.php
+++ /dev/null
@@ -1,366 +0,0 @@
-<?php
-
-abstract class TlDocumentationGenerator
-{
-    private $current_line = '';
-    private $documentation = array();
-    private $line_replacement = array();
-
-    private function isBuiltInType($type)
-    {
-        if (in_array($type, array('Bool', 'int32', 'int53', 'int64', 'double', 'string', 'bytes'))) {
-          return true;
-        }
-        return substr($type, 0, 7) === 'vector<' && substr($type, -1, 1) === '>' && $this->isBuiltInType(substr($type, 7, -1));
-    }
-
-
-    final protected function printError($error)
-    {
-        fwrite(STDERR, "$error near line \"".rtrim($this->current_line)."\"\n");
-    }
-
-    final protected function addDocumentation($code, $doc) {
-        if (isset($this->documentation[$code])) {
-            $this->printError("Duplicate documentation for \"$code\"");
-        }
-
-        $this->documentation[$code] = $doc;
-        // $this->printError($code);
-    }
-
-    final protected function addLineReplacement($line, $new_line) {
-        if (isset($this->line_replacement[$line])) {
-            $this->printError("Duplicate line replacement for \"$line\"");
-        }
-
-        $this->line_replacement[$line] = $new_line;
-    }
-
-    final protected function addDot($str) {
-        if (!$str) {
-            return '';
-        }
-
-        $brackets = preg_replace("/[^[\\](){}'\"]/", '', preg_replace("/[a-z]'/", '', $str));
-        while (strlen($brackets)) {
-            $brackets = preg_replace(array('/[[]]/', '/[(][)]/', '/[{][}]/', "/''/", '/""/'), '', $brackets, -1, $replaced_bracket_count);
-            if ($replaced_bracket_count == 0) {
-                $this->printError('Unmatched bracket in '.$str);
-                break;
-            }
-        }
-
-        $len = strlen($str);
-        if ($str[$len - 1] === '.') {
-            return $str;
-        }
-
-        if ($str[$len - 1] === ')') {
-            // trying to place dot inside the brackets
-            $bracket_count = 1;
-            for ($pos = $len - 2; $pos >= 0; $pos--) {
-                if ($str[$pos] === ')') {
-                    $bracket_count++;
-                }
-                if ($str[$pos] === '(') {
-                    $bracket_count--;
-                    if ($bracket_count === 0) {
-                        break;
-                    }
-                }
-            }
-            if ($bracket_count === 0) {
-                if (ord('A') <= ord($str[$pos + 1]) && ord($str[$pos + 1]) <= ord('Z')) {
-                    return substr($str, 0, -1).'.)';
-                }
-            } else {
-                $this->printError('Unmatched bracket');
-            }
-        }
-        return $str.'.';
-    }
-
-    abstract protected function escapeDocumentation($doc);
-
-    abstract protected function getFieldName($name, $class_name);
-
-    abstract protected function getClassName($name);
-
-    abstract protected function getTypeName($type);
-
-    abstract protected function getBaseClassName($is_function);
-
-    abstract protected function needRemoveLine($line);
-
-    abstract protected function needSkipLine($line);
-
-    abstract protected function isHeaderLine($line);
-
-    abstract protected function extractClassName($line);
-
-    abstract protected function fixLine($line);
-
-    abstract protected function addGlobalDocumentation();
-
-    abstract protected function addAbstractClassDocumentation($class_name, $value);
-
-    abstract protected function getFunctionReturnTypeDescription($return_type, $for_constructor);
-
-    abstract protected function addClassDocumentation($class_name, $base_class_name, $return_type, $description);
-
-    abstract protected function addFieldDocumentation($class_name, $field_name, $type_name, $field_info, $may_be_null);
-
-    abstract protected function addDefaultConstructorDocumentation($class_name, $class_description);
-
-    abstract protected function addFullConstructorDocumentation($class_name, $class_description, $known_fields, $info);
-
-    public function generate($tl_scheme_file, $source_file)
-    {
-        $lines = array_filter(array_map('trim', file($tl_scheme_file)));
-        $description = '';
-        $description_line_count = 0;
-        $current_class = '';
-        $is_function = false;
-        $need_class_description = false;
-
-        $this->addGlobalDocumentation();
-
-        foreach ($lines as $line) {
-            $this->current_line = $line;
-            if ($line === '---types---') {
-                $is_function = false;
-            } elseif ($line === '---functions---') {
-                $is_function = true;
-                $current_class = '';
-                $need_class_description = false;
-            } elseif ($line[0] === '/') {
-                if ($line[1] !== '/') {
-                    $this->printError('Wrong comment');
-                    continue;
-                }
-                if ($line[2] === '@') {
-                    if (substr($line, 2, 7) !== '@class ') {
-                      $description_line_count++;
-                    }
-                    $description .= trim(substr($line, 2)).' ';
-                } elseif ($line[2] === '-') {
-                    if (strpos($line, '@') !== false) {
-                      $description_line_count += 100;
-                    }
-                    $description .= trim(substr($line, 3)).' ';
-                } else {
-                    $this->printError('Unexpected comment');
-                }
-            } elseif (strpos($line, '? =') || strpos($line, ' = Vector t;') || $line === 'boolFalse = Bool;' ||
-                      $line === 'boolTrue = Bool;' || $line === 'bytes = Bytes;' || $line === 'int32 = Int32;' ||
-                      $line === 'int53 = Int53;'|| $line === 'int64 = Int64;') {
-                // skip built-in types
-                continue;
-            } else {
-                $description = trim($description);
-                if ($description[0] !== '@') {
-                    $this->printError('Wrong description begin');
-                }
-
-                if (preg_match('/[^ ]@/', $description)) {
-                    $this->printError("Wrong documentation '@' usage: $description");
-                }
-                $docs = explode('@', $description);
-                array_shift($docs);
-                $info = array();
-
-                foreach ($docs as $doc) {
-                    list($key, $value) = explode(' ', $doc, 2);
-                    $value = trim($value);
-
-                    if ($need_class_description) {
-                        if ($key === 'description') {
-                            $need_class_description = false;
-
-                            $value = $this->escapeDocumentation($this->addDot($value));
-
-                            $this->addAbstractClassDocumentation($current_class, $value);
-                            continue;
-                        } else {
-                            $this->printError('Expected abstract class description');
-                        }
-                    }
-
-                    if ($key === 'class') {
-                        $current_class = $this->getClassName($value);
-                        $need_class_description = true;
-
-                        if ($is_function) {
-                            $this->printError('Unexpected class definition');
-                        }
-                    } else {
-                        if (isset($info[$key])) {
-                            $this->printError("Duplicate info about `$key`");
-                        }
-                        $info[$key] = trim($value);
-                    }
-                }
-
-                if (substr_count($line, '=') !== 1) {
-                    $this->printError("Wrong '=' count");
-                    continue;
-                }
-
-                list($fields, $type) = explode('=', $line);
-                $type = $this->getClassName($type);
-                $fields = explode(' ', trim($fields));
-                $class_name = $this->getClassName(array_shift($fields));
-
-                if ($type !== $current_class) {
-                    $current_class = '';
-                    $need_class_description = false;
-                }
-
-                if (!$is_function) {
-                    $type_lower = strtolower($type);
-                    $class_name_lower = strtolower($class_name);
-                    if (empty($current_class) === ($type_lower !== $class_name_lower)) {
-                        $this->printError('Wrong constructor name');
-                    }
-                    if (strpos($class_name_lower, $type_lower) !== 0) {
-                        // $this->printError('Wrong constructor name');
-                    }
-                }
-
-                $known_fields = array();
-                foreach ($fields as $field) {
-                    list ($field_name, $field_type) = explode(':', $field);
-                    if (isset($info['param_'.$field_name])) {
-                        $known_fields['param_'.$field_name] = $field_type;
-                        continue;
-                    }
-                    if (isset($info[$field_name])) {
-                        $known_fields[$field_name] = $field_type;
-                        continue;
-                    }
-                    $this->printError("Have no documentation for field `$field_name`");
-                }
-
-                foreach ($info as $name => $value) {
-                    if (!$value) {
-                        $this->printError("Documentation for field $name of $class_name is empty");
-                    } elseif (($value[0] < 'A' || $value[0] > 'Z') && ($value[0] < '0' || $value[0] > '9')) {
-                        $this->printError("Documentation for field $name of $class_name doesn't begin with a capital letter");
-                    }
-                }
-
-                foreach ($info as &$v) {
-                    $v = $this->escapeDocumentation($this->addDot($v));
-                }
-
-                $description = $info['description'];
-                unset($info['description']);
-
-                if (!$description) {
-                    $this->printError("Have no description for class `$class_name`");
-                }
-
-                foreach (array_diff_key($info, $known_fields) as $field_name => $field_info) {
-                    $this->printError("Have info about nonexistent field `$field_name`");
-                }
-
-                if (array_keys($info) !== array_keys($known_fields)) {
-                    $this->printError("Have wrong documentation for class `$class_name`");
-                } else if ($description_line_count === 1 ? count($known_fields) >= 4 : $description_line_count !== count($known_fields) + 1) {
-                    $this->printError("Documentation for fields of class `$class_name` must be split to different lines");
-                }
-
-                $base_class_name = $current_class ?: $this->getBaseClassName($is_function);
-                $class_description = $description;
-                $return_type = "";
-                if ($is_function) {
-                    $return_type = $this->getTypeName($type);
-                    $class_description .= $this->getFunctionReturnTypeDescription($return_type, false);
-                }
-                $this->addClassDocumentation($class_name, $base_class_name, $return_type, $class_description);
-
-                foreach ($known_fields as $name => $field_type) {
-                    $may_be_null = stripos($info[$name], 'may be null') !== false;
-                    $field_name = $this->getFieldName($name, $class_name);
-                    $field_type_name = $this->getTypeName($field_type);
-                    if ($this->isBuiltInType($field_type) && ($may_be_null || stripos($info[$name], '; pass null') !== false)) {
-                        $this->printError("Field `$name` of class `$class_name` can't be marked as nullable");
-                    }
-                    $this->addFieldDocumentation($class_name, $field_name, $field_type_name, $info[$name], $may_be_null);
-                }
-
-                if ($is_function) {
-                    $default_constructor_prefix = 'Default constructor for a function, which ';
-                    $full_constructor_prefix = 'Creates a function, which ';
-                    $class_description = lcfirst($description);
-                    $class_description .= $this->getFunctionReturnTypeDescription($this->getTypeName($type), true);
-                } else {
-                    $default_constructor_prefix = '';
-                    $full_constructor_prefix = '';
-                }
-                $this->addDefaultConstructorDocumentation($class_name, $default_constructor_prefix.$class_description);
-
-                if ($known_fields) {
-                    $this->addFullConstructorDocumentation($class_name, $full_constructor_prefix.$class_description, $known_fields, $info);
-                }
-
-                $description = '';
-                $description_line_count = 0;
-            }
-        }
-
-        $lines = file($source_file);
-        $result = '';
-        $current_class = '';
-        $current_headers = '';
-        foreach ($lines as $line) {
-            $this->current_line = $line;
-            if ($this->needRemoveLine($line)) {
-                continue;
-            }
-            if ($this->needSkipLine($line)) {
-                $result .= $current_headers.$line;
-                $current_headers = '';
-                continue;
-            }
-            if ($this->isHeaderLine($line)) {
-                $current_headers .= $line;
-                continue;
-            }
-
-            $current_class = $this->extractClassName($line) ?: $current_class;
-
-            $fixed_line = rtrim($this->fixLine($line));
-
-            $doc = '';
-            if (isset($this->documentation[$fixed_line])) {
-                $doc = $this->documentation[$fixed_line];
-                // unset($this->documentation[$fixed_line]);
-            } elseif (isset($this->documentation[$current_class.$fixed_line])) {
-                $doc = $this->documentation[$current_class.$fixed_line];
-                // unset($this->documentation[$current_class.$fixed_line]);
-            } else {
-                $this->printError('Have no docs for "'.$fixed_line.'"');
-            }
-            if ($doc) {
-                $result .= $doc."\n";
-            }
-            if (isset($this->line_replacement[$fixed_line])) {
-                $line = $this->line_replacement[$fixed_line];
-            } elseif (isset($this->line_replacement[$current_class.$fixed_line])) {
-                $line = $this->line_replacement[$current_class.$fixed_line];
-            }
-            $result .= $current_headers.$line;
-            $current_headers = '';
-        }
-
-        if (file_get_contents($source_file) !== $result) {
-            file_put_contents($source_file, $result);
-        }
-
-        if (count($this->documentation)) {
-            // $this->printError('Have unused docs '.print_r(array_keys($this->documentation), true));
-        }
-    }
-}
diff --git a/third-party/td/td/td/generate/generate_c.cpp b/third-party/td/td/td/generate/generate_c.cpp
deleted file mode 100644
index 3b5228a5f5..0000000000
--- a/third-party/td/td/td/generate/generate_c.cpp
+++ /dev/null
@@ -1,17 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_c.h"
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_generate.h"
-
-int main() {
-  td::tl::tl_config config_td = td::tl::read_tl_config_from_file("tlo/td_api.tlo");
-  td::tl::write_tl_to_file(config_td, "td/telegram/td_tdc_api.h", td::TlWriterCCommon("TdApi", 1));
-  td::tl::write_tl_to_file(config_td, "td/telegram/td_tdc_api_inner.h", td::TlWriterCCommon("TdApi", -1));
-  td::tl::write_tl_to_file(config_td, "td/telegram/td_tdc_api.cpp", td::TlWriterCCommon("TdApi", 0));
-}
diff --git a/third-party/td/td/td/generate/generate_common.cpp b/third-party/td/td/td/generate/generate_common.cpp
deleted file mode 100644
index e19e0f0497..0000000000
--- a/third-party/td/td/td/generate/generate_common.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_cpp.h"
-#include "tl_writer_h.h"
-#include "tl_writer_hpp.h"
-#include "tl_writer_jni_cpp.h"
-#include "tl_writer_jni_h.h"
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_generate.h"
-
-#include <string>
-#include <vector>
-
-template <bool generate_multiple_headers = false, class WriterCpp = td::TD_TL_writer_cpp,
-          class WriterH = td::TD_TL_writer_h, class WriterHpp = td::TD_TL_writer_hpp>
-static void generate_cpp(const std::string &directory, const std::string &tl_name, const std::string &string_type,
-                         const std::string &bytes_type, const std::vector<std::string> &ext_cpp_includes,
-                         const std::vector<std::string> &ext_h_includes) {
-  std::string path = directory + "/" + tl_name;
-  td::tl::tl_config config = td::tl::read_tl_config_from_file("tlo/" + tl_name + ".tlo");
-  td::tl::write_tl_to_file(config, path + ".cpp", WriterCpp(tl_name, string_type, bytes_type, ext_cpp_includes));
-  if (generate_multiple_headers) {
-    td::tl::write_tl_to_multiple_files(config, path, ".h", WriterH(tl_name, string_type, bytes_type, ext_h_includes));
-  } else {
-    td::tl::write_tl_to_file(config, path + ".h", WriterH(tl_name, string_type, bytes_type, ext_h_includes));
-  }
-  td::tl::write_tl_to_file(config, path + ".hpp", WriterHpp(tl_name, string_type, bytes_type));
-}
-
-int main() {
-  generate_cpp<>("td/telegram", "telegram_api", "std::string", "BufferSlice",
-                 {"\"td/tl/tl_object_parse.h\"", "\"td/tl/tl_object_store.h\""}, {"\"td/utils/buffer.h\""});
-
-  generate_cpp<>("td/telegram", "secret_api", "std::string", "BufferSlice",
-                 {"\"td/tl/tl_object_parse.h\"", "\"td/tl/tl_object_store.h\""}, {"\"td/utils/buffer.h\""});
-
-  generate_cpp<>("td/telegram", "e2e_api", "std::string", "std::string",
-                 {"\"td/tl/tl_object_parse.h\"", "\"td/tl/tl_object_store.h\""}, {"\"td/utils/UInt.h\""});
-
-#ifdef TD_ENABLE_JNI
-  generate_cpp<false, td::TD_TL_writer_jni_cpp, td::TD_TL_writer_jni_h>(
-      "td/telegram", "td_api", "std::string", "std::string", {"\"td/tl/tl_jni_object.h\""}, {"<string>"});
-#else
-  generate_cpp<>("td/telegram", "td_api", "std::string", "std::string", {}, {"<string>"});
-#endif
-}
diff --git a/third-party/td/td/td/generate/generate_dotnet.cpp b/third-party/td/td/td/generate/generate_dotnet.cpp
deleted file mode 100644
index e2af8e3ea7..0000000000
--- a/third-party/td/td/td/generate/generate_dotnet.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_dotnet.h"
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_generate.h"
-
-int main(int argc, char *argv[]) {
-  if (argc < 2) {
-    return 1;
-  }
-
-  td::tl::tl_config config_td = td::tl::read_tl_config_from_file(argv[1]);
-
-  td::tl::write_tl_to_file(config_td, "td/telegram/TdDotNetApi.cpp",
-                           td::tl::TlWriterDotNet("TdApi", false, "#include \"td/telegram/TdDotNetApi.h\"\n\n"));
-  td::tl::write_tl_to_file(config_td, "td/telegram/TdDotNetApi.h", td::tl::TlWriterDotNet("TdApi", true, ""));
-}
diff --git a/third-party/td/td/td/generate/generate_java.cpp b/third-party/td/td/td/generate/generate_java.cpp
deleted file mode 100644
index d9edbf08cf..0000000000
--- a/third-party/td/td/td/generate/generate_java.cpp
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_java.h"
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_generate.h"
-
-#include <algorithm>
-#include <string>
-
-int main(int argc, char *argv[]) {
-  if (argc < 5) {
-    return 1;
-  }
-
-  std::string api_name = argv[1];
-  std::string source = argv[2];
-  std::string destination = argv[3];
-  std::string package = argv[4];
-  std::string package_name = package;
-  std::replace(package_name.begin(), package_name.end(), '/', '.');
-  destination += "/" + package + "/" + api_name + ".java";
-  td::tl::write_tl_to_file(td::tl::read_tl_config_from_file(source), destination,
-                           td::TD_TL_writer_java(api_name, package_name));
-}
diff --git a/third-party/td/td/td/generate/generate_json.cpp b/third-party/td/td/td/generate/generate_json.cpp
deleted file mode 100644
index 3168655a5e..0000000000
--- a/third-party/td/td/td/generate/generate_json.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_json_converter.h"
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_generate.h"
-
-int main() {
-  td::gen_json_converter(td::tl::read_tl_config_from_file("tlo/td_api.tlo"), "td/telegram/td_api_json",
-                         td::tl::TL_writer::Server);
-}
diff --git a/third-party/td/td/td/generate/generate_mtproto.cpp b/third-party/td/td/td/generate/generate_mtproto.cpp
deleted file mode 100644
index bb08210944..0000000000
--- a/third-party/td/td/td/generate/generate_mtproto.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_cpp.h"
-#include "tl_writer_h.h"
-#include "tl_writer_hpp.h"
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_generate.h"
-
-#include <string>
-
-int main() {
-  std::string tl_name = "mtproto_api";
-  std::string path = "td/mtproto/" + tl_name;
-  td::tl::tl_config config = td::tl::read_tl_config_from_file("tlo/" + tl_name + ".tlo");
-  td::tl::write_tl_to_file(
-      config, path + ".cpp",
-      td::TD_TL_writer_cpp(tl_name, "Slice", "Slice", {"\"td/tl/tl_object_parse.h\"", "\"td/tl/tl_object_store.h\""}));
-  td::tl::write_tl_to_file(
-      config, path + ".h",
-      td::TD_TL_writer_h(tl_name, "Slice", "Slice", {"\"td/utils/Slice.h\"", "\"td/utils/UInt.h\""}));
-  td::tl::write_tl_to_file(config, path + ".hpp", td::TD_TL_writer_hpp(tl_name, "Slice", "Slice"));
-}
diff --git a/third-party/td/td/td/generate/remove_documentation.cpp b/third-party/td/td/td/generate/remove_documentation.cpp
deleted file mode 100644
index 18a5c65521..0000000000
--- a/third-party/td/td/td/generate/remove_documentation.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_file_utils.h"
-
-#include <cstdio>
-#include <cstdlib>
-#include <string>
-
-int main(int argc, char *argv[]) {
-  for (int i = 1; i < argc; i++) {
-    std::string file_name = argv[i];
-    std::string old_contents = td::tl::get_file_contents(file_name);
-    std::string new_contents = td::tl::remove_documentation(old_contents);
-    if (!td::tl::put_file_contents(file_name, new_contents, true)) {
-      std::fprintf(stderr, "Can't write file %s\n", file_name.c_str());
-      std::abort();
-    }
-  }
-}
diff --git a/third-party/td/td/td/generate/scheme/e2e_api.tl b/third-party/td/td/td/generate/scheme/e2e_api.tl
deleted file mode 100644
index 1b2a482b78..0000000000
--- a/third-party/td/td/td/generate/scheme/e2e_api.tl
+++ /dev/null
@@ -1,86 +0,0 @@
-int ? = Int;
-long ? = Long;
-double ? = Double;
-string ? = String;
-
-bytes = Bytes;
-
-boolFalse = Bool;
-boolTrue = Bool;
-
-true#3fedd339 = True;
-
-vector {t:Type} # [ t ] = Vector t;
-
-int32 = Int32;
-int53 = Int53;
-int64 = Int64;
-
-int128 4*[ int ] = Int128;
-int256 8*[ int ] = Int256;
-int512 16*[ int ] = Int512;
-
-secureBytes = SecureBytes;
-secureString = SecureString;
-
-ok = Ok;
-
-//
-//                  Handshake
-//
-
-e2e.handshakeQR bob_ephemeral_PK:int256 bob_nonce:int256 = e2e.HandshakePublic;
-e2e.handshakeEncryptedMessage message:bytes = e2e.HandshakePublic; // author of the message is given externally
-e2e.handshakeLoginExport accept:bytes encrypted_key:bytes = e2e.HandshakePublic;
-
-e2e.handshakePrivateAccept alice_PK:int256 bob_PK:int256 alice_user_id:int64 bob_user_id:int64 alice_nonce:int256 bob_nonce:int256 = e2e.HandshakePrivate;
-e2e.handshakePrivateFinish alice_PK:int256 bob_PK:int256 alice_user_id:int64 bob_user_id:int64 alice_nonce:int256 bob_nonce:int256 = e2e.HandshakePrivate;
-
-
-//
-//                  Personal information
-//
-
-e2e.personalUserId user_id:int64 = e2e.Personal;
-e2e.personalName first_name:string last_name:string = e2e.Personal;
-e2e.personalPhoneNumber phone_number:string = e2e.Personal;
-e2e.personalContactState flags:# is_contact:flags.0?true = e2e.Personal;
-e2e.personalEmojiNonces flags:# self_nonce:flags.0?int256 contact_nonce_hash:flags.1?int256 contact_nonce:flags.2?int256 = e2e.Personal;
-
-e2e.personalOnServer signature:int512 signed_at:int32 personal:e2e.Personal = e2e.PersonalOnServer;
-e2e.personalOnClient signed_at:int32 personal:e2e.Personal = e2e.PersonalOnClient;
-
-// This is stored by server. We don't want to store it in public user's blockchain, because all history of
-// changes will be public. Instead, we store signed_at. Also, client may send personalData during QR verification
-// server must ensure that each public_key is used exactly once
-e2e.personalData public_key:int256 data:vector<e2e.personalOnServer> = e2e.PersonalData;
-
-// Key value storage layout
-e2e.keyContactByUserId user_id:int64 = e2e.Key;
-e2e.valueContactByUserId public_keys:vector<int256> = e2e.Value;
-
-// TODO: encrypt key instead of hashing and drop public_key. Key type will be determined by value type
-e2e.keyContactByPublicKey public_key:int256 = e2e.Key;
-// TODO: store string instead of e2e.personalOnClient to support forward compatibility
-e2e.valueContactByPublicKey entries:vector<e2e.personalOnClient> = e2e.Value;
-
-e2e.chain.groupBroadcastNonceCommit#d1512ae7 signature:int512 user_id:int64 chain_height:int32 chain_hash:int256 nonce_hash:int256 = e2e.chain.GroupBroadcast;
-e2e.chain.groupBroadcastNonceReveal#83f4f9d8 signature:int512 user_id:int64 chain_height:int32 chain_hash:int256 nonce:int256 = e2e.chain.GroupBroadcast;
-
-e2e.chain.groupParticipant user_id:long public_key:int256 flags:# add_users:flags.0?true remove_users:flags.1?true version:int = e2e.chain.GroupParticipant;
-e2e.chain.groupState participants:vector<e2e.chain.GroupParticipant> external_permissions:int = e2e.chain.GroupState;
-e2e.chain.sharedKey ek:int256 encrypted_shared_key:string dest_user_id:vector<long> dest_header:vector<bytes> = e2e.chain.SharedKey;
-
-e2e.chain.changeNoop nonce:int256 = e2e.chain.Change;
-e2e.chain.changeSetValue key:bytes value:bytes = e2e.chain.Change;
-e2e.chain.changeSetGroupState group_state:e2e.chain.GroupState = e2e.chain.Change;
-e2e.chain.changeSetSharedKey shared_key:e2e.chain.SharedKey = e2e.chain.Change;
-
-e2e.chain.stateProof flags:# kv_hash:int256 group_state:flags.0?e2e.chain.GroupState shared_key:flags.1?e2e.chain.SharedKey = e2e.chain.StateProof;
-
-// signature is for the same block, but with empty signature
-e2e.chain.block#639a3db6 signature:int512 flags:# prev_block_hash:int256 changes:vector<e2e.chain.Change> height:int state_proof:e2e.chain.StateProof signature_public_key:flags.0?int256 = e2e.chain.Block;
-
---- functions ---
-
-e2e.nop = Bool;
diff --git a/third-party/td/td/td/generate/scheme/mtproto_api.tl b/third-party/td/td/td/generate/scheme/mtproto_api.tl
deleted file mode 100644
index b2508b478b..0000000000
--- a/third-party/td/td/td/generate/scheme/mtproto_api.tl
+++ /dev/null
@@ -1,87 +0,0 @@
-int ? = Int;
-long ? = Long;
-double ? = Double;
-string ? = String;
-
-dummyHttpWait = HttpWait;
-
-vector {t:Type} # [ t ] = Vector t;
-
-int128 4*[ int ] = Int128;
-int256 8*[ int ] = Int256;
-
-resPQ#05162463 nonce:int128 server_nonce:int128 pq:string server_public_key_fingerprints:Vector<long> = ResPQ;
-
-p_q_inner_data_dc#a9f55f95 pq:string p:string q:string nonce:int128 server_nonce:int128 new_nonce:int256 dc:int = P_Q_inner_data;
-p_q_inner_data_temp_dc#56fddf88 pq:string p:string q:string nonce:int128 server_nonce:int128 new_nonce:int256 dc:int expires_in:int = P_Q_inner_data;
-
-server_DH_params_ok#d0e8075c nonce:int128 server_nonce:int128 encrypted_answer:string = Server_DH_Params;
-
-server_DH_inner_data#b5890dba nonce:int128 server_nonce:int128 g:int dh_prime:string g_a:string server_time:int = Server_DH_inner_data;
-
-client_DH_inner_data#6643b654 nonce:int128 server_nonce:int128 retry_id:long g_b:string = Client_DH_Inner_Data;
-
-dh_gen_ok#3bcbf734 nonce:int128 server_nonce:int128 new_nonce_hash1:int128 = Set_client_DH_params_answer;
-dh_gen_retry#46dc1fb9 nonce:int128 server_nonce:int128 new_nonce_hash2:int128 = Set_client_DH_params_answer;
-dh_gen_fail#a69dae02 nonce:int128 server_nonce:int128 new_nonce_hash3:int128 = Set_client_DH_params_answer;
-
-bind_auth_key_inner#75a3f765 nonce:long temp_auth_key_id:long perm_auth_key_id:long temp_session_id:long expires_at:int = BindAuthKeyInner;
-
-//rpc_result#f35c6d01 req_msg_id:long result:string = RpcResult;
-rpc_error#2144ca19 error_code:int error_message:string = RpcError;
-
-rpc_answer_unknown#5e2ad36e = RpcDropAnswer;
-rpc_answer_dropped_running#cd78e586 = RpcDropAnswer;
-rpc_answer_dropped#a43ad8b7 msg_id:long seq_no:int bytes:int = RpcDropAnswer;
-
-future_salt#0949d9dc valid_since:int valid_until:int salt:long = FutureSalt;
-future_salts#ae500895 req_msg_id:long now:int salts:vector<future_salt> = FutureSalts;
-
-pong#347773c5 msg_id:long ping_id:long = Pong;
-
-//destroy_session_ok#e22045fc session_id:long = DestroySessionRes;
-//destroy_session_none#62d350c9 session_id:long = DestroySessionRes;
-
-new_session_created#9ec20908 first_msg_id:long unique_id:long server_salt:long = NewSession;
-
-//msg_container#73f1f8dc messages:vector<%Message> = MessageContainer;
-//message msg_id:long seqno:int bytes:int body:string = Message;
-//msg_copy#e06046b2 orig_message:Message = MessageCopy;
-
-gzip_packed#3072cfa1 packed_data:string = GzipPacked;
-
-msgs_ack#62d6b459 msg_ids:Vector<long> = MsgsAck;
-
-bad_msg_notification#a7eff811 bad_msg_id:long bad_msg_seqno:int error_code:int = BadMsgNotification;
-bad_server_salt#edab447b bad_msg_id:long bad_msg_seqno:int error_code:int new_server_salt:long = BadMsgNotification;
-
-msg_resend_req#7d861a08 msg_ids:Vector<long> = MsgResendReq;
-msgs_state_req#da69fb52 msg_ids:Vector<long> = MsgsStateReq;
-msgs_state_info#04deb57d req_msg_id:long info:string = MsgsStateInfo;
-msgs_all_info#8cc0d131 msg_ids:Vector<long> info:string = MsgsAllInfo;
-msg_detailed_info#276d3ec6 msg_id:long answer_msg_id:long bytes:int status:int = MsgDetailedInfo;
-msg_new_detailed_info#809db6df answer_msg_id:long bytes:int status:int = MsgDetailedInfo;
-
-rsa_public_key n:string e:string = RSAPublicKey;
-
-destroy_auth_key_ok#f660e1d4 = DestroyAuthKeyRes;
-destroy_auth_key_none#0a9f2259 = DestroyAuthKeyRes;
-destroy_auth_key_fail#ea109b13 = DestroyAuthKeyRes;
-
----functions---
-
-req_pq_multi#be7e8ef1 nonce:int128 = ResPQ;
-
-req_DH_params#d712e4be nonce:int128 server_nonce:int128 p:string q:string public_key_fingerprint:long encrypted_data:string = Server_DH_Params;
-
-set_client_DH_params#f5045f1f nonce:int128 server_nonce:int128 encrypted_data:string = Set_client_DH_params_answer;
-
-rpc_drop_answer#58e4a740 req_msg_id:long = RpcDropAnswer;
-get_future_salts#b921bd04 num:int = FutureSalts;
-//ping#7abe77ec ping_id:long = Pong;
-ping_delay_disconnect#f3427b8c ping_id:long disconnect_delay:int = Pong;
-//destroy_session#e7512126 session_id:long = DestroySessionRes;
-
-http_wait#9299359f max_delay:int wait_after:int max_wait:int = HttpWait;
-
-destroy_auth_key#d1435160 = DestroyAuthKeyRes;
diff --git a/third-party/td/td/td/generate/scheme/secret_api.tl b/third-party/td/td/td/generate/scheme/secret_api.tl
deleted file mode 100644
index 25231eb26d..0000000000
--- a/third-party/td/td/td/generate/scheme/secret_api.tl
+++ /dev/null
@@ -1,131 +0,0 @@
-int ? = Int;
-long ? = Long;
-double ? = Double;
-string ? = String;
-
-bytes = Bytes;
-
-boolFalse = Bool;
-boolTrue = Bool;
-
-true#3fedd339 = True;
-
-vector {t:Type} # [ t ] = Vector t;
-
-decryptedMessage8#1f814f1f random_id:long random_bytes:bytes message:string media:DecryptedMessageMedia = DecryptedMessage;
-decryptedMessageService8#aa48327d random_id:long random_bytes:bytes action:DecryptedMessageAction = DecryptedMessage;
-decryptedMessageMediaEmpty#89f5c4a = DecryptedMessageMedia;
-decryptedMessageMediaPhoto8#32798a8c thumb:bytes thumb_w:int thumb_h:int w:int h:int size:int key:bytes iv:bytes = DecryptedMessageMedia;
-decryptedMessageMediaVideo8#4cee6ef3 thumb:bytes thumb_w:int thumb_h:int duration:int w:int h:int size:int key:bytes iv:bytes = DecryptedMessageMedia;
-decryptedMessageMediaGeoPoint#35480a59 lat:double long:double = DecryptedMessageMedia;
-decryptedMessageMediaContact#588a0a97 phone_number:string first_name:string last_name:string user_id:int = DecryptedMessageMedia;
-decryptedMessageActionSetMessageTTL#a1733aec ttl_seconds:int = DecryptedMessageAction;
-decryptedMessageMediaDocument8#b095434b thumb:bytes thumb_w:int thumb_h:int file_name:string mime_type:string size:int key:bytes iv:bytes = DecryptedMessageMedia;
-decryptedMessageMediaAudio8#6080758f duration:int size:int key:bytes iv:bytes = DecryptedMessageMedia;
-decryptedMessageActionReadMessages#c4f40be random_ids:Vector<long> = DecryptedMessageAction;
-decryptedMessageActionDeleteMessages#65614304 random_ids:Vector<long> = DecryptedMessageAction;
-decryptedMessageActionScreenshotMessages#8ac1f475 random_ids:Vector<long> = DecryptedMessageAction;
-decryptedMessageActionFlushHistory#6719e45c = DecryptedMessageAction;
-
-// layer 23
-
-decryptedMessage23#204d3878 random_id:long ttl:int message:string media:DecryptedMessageMedia = DecryptedMessage;
-decryptedMessageService#73164160 random_id:long action:DecryptedMessageAction = DecryptedMessage;
-decryptedMessageMediaVideo23#524a415d thumb:bytes thumb_w:int thumb_h:int duration:int mime_type:string w:int h:int size:int key:bytes iv:bytes = DecryptedMessageMedia;
-decryptedMessageMediaAudio#57e0a9cb duration:int mime_type:string size:int key:bytes iv:bytes = DecryptedMessageMedia;
-decryptedMessageLayer#1be31789 random_bytes:bytes layer:int in_seq_no:int out_seq_no:int message:DecryptedMessage = DecryptedMessageLayer;
-
-sendMessageTypingAction#16bf744e = SendMessageAction;
-sendMessageCancelAction#fd5ec8f5 = SendMessageAction;
-sendMessageRecordVideoAction#a187d66f = SendMessageAction;
-sendMessageUploadVideoAction#92042ff7 = SendMessageAction;
-sendMessageRecordAudioAction#d52f73f7 = SendMessageAction;
-sendMessageUploadAudioAction#e6ac8a6f = SendMessageAction;
-sendMessageUploadPhotoAction#990a3c1a = SendMessageAction;
-sendMessageUploadDocumentAction#8faee98e = SendMessageAction;
-sendMessageGeoLocationAction#176f8ba1 = SendMessageAction;
-sendMessageChooseContactAction#628cbc6f = SendMessageAction;
-
-decryptedMessageActionResend#511110b0 start_seq_no:int end_seq_no:int = DecryptedMessageAction;
-decryptedMessageActionNotifyLayer#f3048883 layer:int = DecryptedMessageAction;
-decryptedMessageActionTyping#ccb27641 action:SendMessageAction = DecryptedMessageAction;
-
-decryptedMessageActionRequestKey#f3c9611b exchange_id:long g_a:bytes = DecryptedMessageAction;
-decryptedMessageActionAcceptKey#6fe1735b exchange_id:long g_b:bytes key_fingerprint:long = DecryptedMessageAction;
-decryptedMessageActionAbortKey#dd05ec6b exchange_id:long = DecryptedMessageAction;
-decryptedMessageActionCommitKey#ec2e0b9b exchange_id:long key_fingerprint:long = DecryptedMessageAction;
-decryptedMessageActionNoop#a82fdd63 = DecryptedMessageAction;
-
-documentAttributeImageSize#6c37c15c w:int h:int = DocumentAttribute;
-documentAttributeAnimated#11b58939 = DocumentAttribute;
-documentAttributeSticker23#fb0a5727 = DocumentAttribute;
-documentAttributeVideo23#5910cccb duration:int w:int h:int = DocumentAttribute;
-documentAttributeAudio23#51448e5 duration:int = DocumentAttribute;
-documentAttributeFilename#15590068 file_name:string = DocumentAttribute;
-photoSizeEmpty#e17e23c type:string = PhotoSize;
-photoSize#77bfb61b type:string location:FileLocation w:int h:int size:int = PhotoSize;
-photoCachedSize#e9a734fa type:string location:FileLocation w:int h:int bytes:bytes = PhotoSize;
-fileLocationUnavailable#7c596b46 volume_id:long local_id:int secret:long = FileLocation;
-fileLocation#53d69076 dc_id:int volume_id:long local_id:int secret:long = FileLocation;
-decryptedMessageMediaExternalDocument#fa95b0dd id:long access_hash:long date:int mime_type:string size:int thumb:PhotoSize dc_id:int attributes:Vector<DocumentAttribute> = DecryptedMessageMedia;
-
-// layer 45
-
-documentAttributeAudio45#ded218e0 duration:int title:string performer:string = DocumentAttribute;
-
-// layer 46
-
-decryptedMessage46#36b091de flags:# random_id:long ttl:int message:string media:flags.9?DecryptedMessageMedia entities:flags.7?Vector<MessageEntity> via_bot_name:flags.11?string reply_to_random_id:flags.3?long = DecryptedMessage;
-decryptedMessageMediaPhoto#f1fa8d78 thumb:bytes thumb_w:int thumb_h:int w:int h:int size:int key:bytes iv:bytes caption:string = DecryptedMessageMedia;
-decryptedMessageMediaVideo#970c8c0e thumb:bytes thumb_w:int thumb_h:int duration:int mime_type:string w:int h:int size:int key:bytes iv:bytes caption:string = DecryptedMessageMedia;
-decryptedMessageMediaDocument46#7afe8ae2 thumb:bytes thumb_w:int thumb_h:int mime_type:string size:int key:bytes iv:bytes attributes:Vector<DocumentAttribute> caption:string = DecryptedMessageMedia;
-documentAttributeSticker#3a556302 alt:string stickerset:InputStickerSet = DocumentAttribute;
-documentAttributeAudio#9852f9c6 flags:# voice:flags.10?true duration:int title:flags.0?string performer:flags.1?string waveform:flags.2?bytes = DocumentAttribute;
-messageEntityUnknown#bb92ba95 offset:int length:int = MessageEntity;
-messageEntityMention#fa04579d offset:int length:int = MessageEntity;
-messageEntityHashtag#6f635b0d offset:int length:int = MessageEntity;
-messageEntityBotCommand#6cef8ac7 offset:int length:int = MessageEntity;
-messageEntityUrl#6ed02538 offset:int length:int = MessageEntity;
-messageEntityEmail#64e475c2 offset:int length:int = MessageEntity;
-messageEntityBold#bd610bc9 offset:int length:int = MessageEntity;
-messageEntityItalic#826f8b60 offset:int length:int = MessageEntity;
-messageEntityCode#28a20571 offset:int length:int = MessageEntity;
-messageEntityPre#73924be0 offset:int length:int language:string = MessageEntity;
-messageEntityTextUrl#76a6d327 offset:int length:int url:string = MessageEntity;
-messageEntityMentionName#352dca58 offset:int length:int user_id:int = MessageEntity;
-messageEntityPhone#9b69e34b offset:int length:int = MessageEntity;
-messageEntityCashtag#4c4e743f offset:int length:int = MessageEntity;
-messageEntityBankCard#761e6af4 offset:int length:int = MessageEntity;
-inputStickerSetShortName#861cc8a0 short_name:string = InputStickerSet;
-inputStickerSetEmpty#ffb62b95 = InputStickerSet;
-decryptedMessageMediaVenue#8a0df56f lat:double long:double title:string address:string provider:string venue_id:string = DecryptedMessageMedia;
-decryptedMessageMediaWebPage#e50511d8 url:string = DecryptedMessageMedia;
-
-// layer 66
-
-sendMessageRecordRoundAction#88f27fbc = SendMessageAction;
-sendMessageUploadRoundAction#bb718624 = SendMessageAction;
-documentAttributeVideo#ef02ce6 flags:# round_message:flags.0?true duration:int w:int h:int = DocumentAttribute;
-
-// layer 73
-
-decryptedMessage#91cc4674 flags:# silent:flags.5?true random_id:long ttl:int message:string media:flags.9?DecryptedMessageMedia entities:flags.7?Vector<MessageEntity> via_bot_name:flags.11?string reply_to_random_id:flags.3?long grouped_id:flags.17?long = DecryptedMessage;
-
-// layer 101
-
-messageEntityUnderline#9c4e7e8b offset:int length:int = MessageEntity;
-messageEntityStrike#bf0693d4 offset:int length:int = MessageEntity;
-messageEntityBlockquote#20df5d0 offset:int length:int = MessageEntity;
-
-// layer 143
-
-decryptedMessageMediaDocument#6abd9782 thumb:bytes thumb_w:int thumb_h:int mime_type:string size:long key:bytes iv:bytes attributes:Vector<DocumentAttribute> caption:string = DecryptedMessageMedia;
-
-// layer 144
-
-messageEntitySpoiler#32ca960f offset:int length:int = MessageEntity;
-messageEntityCustomEmoji#c8cf05f8 offset:int length:int document_id:long = MessageEntity;
-
----functions---
-
-test.dummyFunction = Bool;
diff --git a/third-party/td/td/td/generate/scheme/td_api.tl b/third-party/td/td/td/generate/scheme/td_api.tl
deleted file mode 100644
index 81180de4ef..0000000000
--- a/third-party/td/td/td/generate/scheme/td_api.tl
+++ /dev/null
@@ -1,12826 +0,0 @@
-double ? = Double;
-string ? = String;
-
-int32 = Int32;
-int53 = Int53;
-int64 = Int64;
-bytes = Bytes;
-
-boolFalse = Bool;
-boolTrue = Bool;
-
-vector {t:Type} # [ t ] = Vector t;
-
-
-//@description An object of this type can be returned on every function call, in case of an error
-//@code Error code; subject to future changes. If the error code is 406, the error message must not be processed in any way and must not be displayed to the user
-//@message Error message; subject to future changes
-error code:int32 message:string = Error;
-
-
-//@description An object of this type is returned on a successful function call for certain functions
-ok = Ok;
-
-
-//@class AuthenticationCodeType @description Provides information about the method by which an authentication code is delivered to the user
-
-//@description A digit-only authentication code is delivered via a private Telegram message, which can be viewed from another active session
-//@length Length of the code
-authenticationCodeTypeTelegramMessage length:int32 = AuthenticationCodeType;
-
-//@description A digit-only authentication code is delivered via an SMS message to the specified phone number; non-official applications may not receive this type of code
-//@length Length of the code
-authenticationCodeTypeSms length:int32 = AuthenticationCodeType;
-
-//@description An authentication code is a word delivered via an SMS message to the specified phone number; non-official applications may not receive this type of code
-//@first_letter The first letters of the word if known
-authenticationCodeTypeSmsWord first_letter:string = AuthenticationCodeType;
-
-//@description An authentication code is a phrase from multiple words delivered via an SMS message to the specified phone number; non-official applications may not receive this type of code
-//@first_word The first word of the phrase if known
-authenticationCodeTypeSmsPhrase first_word:string = AuthenticationCodeType;
-
-//@description A digit-only authentication code is delivered via a phone call to the specified phone number
-//@length Length of the code
-authenticationCodeTypeCall length:int32 = AuthenticationCodeType;
-
-//@description An authentication code is delivered by an immediately canceled call to the specified phone number. The phone number that calls is the code that must be entered automatically
-//@pattern Pattern of the phone number from which the call will be made
-authenticationCodeTypeFlashCall pattern:string = AuthenticationCodeType;
-
-//@description An authentication code is delivered by an immediately canceled call to the specified phone number. The last digits of the phone number that calls are the code that must be entered manually by the user
-//@phone_number_prefix Prefix of the phone number from which the call will be made
-//@length Number of digits in the code, excluding the prefix
-authenticationCodeTypeMissedCall phone_number_prefix:string length:int32 = AuthenticationCodeType;
-
-//@description A digit-only authentication code is delivered to https://fragment.com. The user must be logged in there via a wallet owning the phone number's NFT
-//@url URL to open to receive the code
-//@length Length of the code
-authenticationCodeTypeFragment url:string length:int32 = AuthenticationCodeType;
-
-//@description A digit-only authentication code is delivered via Firebase Authentication to the official Android application
-//@device_verification_parameters Parameters to be used for device verification
-//@length Length of the code
-authenticationCodeTypeFirebaseAndroid device_verification_parameters:FirebaseDeviceVerificationParameters length:int32 = AuthenticationCodeType;
-
-//@description A digit-only authentication code is delivered via Firebase Authentication to the official iOS application
-//@receipt Receipt of successful application token validation to compare with receipt from push notification
-//@push_timeout Time after the next authentication method is expected to be used if verification push notification isn't received, in seconds
-//@length Length of the code
-authenticationCodeTypeFirebaseIos receipt:string push_timeout:int32 length:int32 = AuthenticationCodeType;
-
-
-//@description Information about the authentication code that was sent
-//@phone_number A phone number that is being authenticated
-//@type The way the code was sent to the user
-//@next_type The way the next code will be sent to the user; may be null
-//@timeout Timeout before the code can be re-sent, in seconds
-authenticationCodeInfo phone_number:string type:AuthenticationCodeType next_type:AuthenticationCodeType timeout:int32 = AuthenticationCodeInfo;
-
-//@description Information about the email address authentication code that was sent
-//@email_address_pattern Pattern of the email address to which an authentication code was sent
-//@length Length of the code; 0 if unknown
-emailAddressAuthenticationCodeInfo email_address_pattern:string length:int32 = EmailAddressAuthenticationCodeInfo;
-
-
-//@class EmailAddressAuthentication @description Contains authentication data for an email address
-
-//@description An authentication code delivered to a user's email address @code The code
-emailAddressAuthenticationCode code:string = EmailAddressAuthentication;
-
-//@description An authentication token received through Apple ID @token The token
-emailAddressAuthenticationAppleId token:string = EmailAddressAuthentication;
-
-//@description An authentication token received through Google ID @token The token
-emailAddressAuthenticationGoogleId token:string = EmailAddressAuthentication;
-
-
-//@class EmailAddressResetState @description Describes reset state of an email address
-
-//@description Email address can be reset after the given period. Call resetAuthenticationEmailAddress to reset it and allow the user to authorize with a code sent to the user's phone number
-//@wait_period Time required to wait before the email address can be reset; 0 if the user is subscribed to Telegram Premium
-emailAddressResetStateAvailable wait_period:int32 = EmailAddressResetState;
-
-//@description Email address reset has already been requested. Call resetAuthenticationEmailAddress to check whether immediate reset is possible
-//@reset_in Left time before the email address will be reset, in seconds. updateAuthorizationState is not sent when this field changes
-emailAddressResetStatePending reset_in:int32 = EmailAddressResetState;
-
-
-//@description Represents a part of the text that needs to be formatted in some unusual way @offset Offset of the entity, in UTF-16 code units @length Length of the entity, in UTF-16 code units @type Type of the entity
-textEntity offset:int32 length:int32 type:TextEntityType = TextEntity;
-
-//@description Contains a list of text entities @entities List of text entities
-textEntities entities:vector<textEntity> = TextEntities;
-
-//@description A text with some entities @text The text @entities Entities contained in the text. Entities can be nested, but must not mutually intersect with each other.
-//-Pre, Code and PreCode entities can't contain other entities. BlockQuote entities can't contain other BlockQuote entities. Bold, Italic, Underline, Strikethrough, and Spoiler entities can contain and can be part of any other entities. All other entities can't contain each other
-formattedText text:string entities:vector<textEntity> = FormattedText;
-
-
-//@description Contains Telegram terms of service @text Text of the terms of service @min_user_age The minimum age of a user to be able to accept the terms; 0 if age isn't restricted @show_popup True, if a blocking popup with terms of service must be shown to the user
-termsOfService text:formattedText min_user_age:int32 show_popup:Bool = TermsOfService;
-
-
-//@class AuthorizationState @description Represents the current authorization state of the TDLib client
-
-//@description Initialization parameters are needed. Call setTdlibParameters to provide them
-authorizationStateWaitTdlibParameters = AuthorizationState;
-
-//@description TDLib needs the user's phone number to authorize. Call setAuthenticationPhoneNumber to provide the phone number, or use requestQrCodeAuthentication or checkAuthenticationBotToken for other authentication options
-authorizationStateWaitPhoneNumber = AuthorizationState;
-
-//@description TDLib needs the user's email address to authorize. Call setAuthenticationEmailAddress to provide the email address, or directly call checkAuthenticationEmailCode with Apple ID/Google ID token if allowed
-//@allow_apple_id True, if authorization through Apple ID is allowed
-//@allow_google_id True, if authorization through Google ID is allowed
-authorizationStateWaitEmailAddress allow_apple_id:Bool allow_google_id:Bool = AuthorizationState;
-
-//@description TDLib needs the user's authentication code sent to an email address to authorize. Call checkAuthenticationEmailCode to provide the code
-//@allow_apple_id True, if authorization through Apple ID is allowed
-//@allow_google_id True, if authorization through Google ID is allowed
-//@code_info Information about the sent authentication code
-//@email_address_reset_state Reset state of the email address; may be null if the email address can't be reset
-authorizationStateWaitEmailCode allow_apple_id:Bool allow_google_id:Bool code_info:emailAddressAuthenticationCodeInfo email_address_reset_state:EmailAddressResetState = AuthorizationState;
-
-//@description TDLib needs the user's authentication code to authorize. Call checkAuthenticationCode to check the code @code_info Information about the authorization code that was sent
-authorizationStateWaitCode code_info:authenticationCodeInfo = AuthorizationState;
-
-//@description The user needs to confirm authorization on another logged in device by scanning a QR code with the provided link @link A tg:// URL for the QR code. The link will be updated frequently
-authorizationStateWaitOtherDeviceConfirmation link:string = AuthorizationState;
-
-//@description The user is unregistered and need to accept terms of service and enter their first name and last name to finish registration. Call registerUser to accept the terms of service and provide the data @terms_of_service Telegram terms of service
-authorizationStateWaitRegistration terms_of_service:termsOfService = AuthorizationState;
-
-//@description The user has been authorized, but needs to enter a 2-step verification password to start using the application.
-//-Call checkAuthenticationPassword to provide the password, or requestAuthenticationPasswordRecovery to recover the password, or deleteAccount to delete the account after a week
-//@password_hint Hint for the password; may be empty
-//@has_recovery_email_address True, if a recovery email address has been set up
-//@has_passport_data True, if some Telegram Passport elements were saved
-//@recovery_email_address_pattern Pattern of the email address to which the recovery email was sent; empty until a recovery email has been sent
-authorizationStateWaitPassword password_hint:string has_recovery_email_address:Bool has_passport_data:Bool recovery_email_address_pattern:string = AuthorizationState;
-
-//@description The user has been successfully authorized. TDLib is now ready to answer general requests
-authorizationStateReady = AuthorizationState;
-
-//@description The user is currently logging out
-authorizationStateLoggingOut = AuthorizationState;
-
-//@description TDLib is closing, all subsequent queries will be answered with the error 500. Note that closing TDLib can take a while. All resources will be freed only after authorizationStateClosed has been received
-authorizationStateClosing = AuthorizationState;
-
-//@description TDLib client is in its final state. All databases are closed and all resources are released. No other updates will be received after this. All queries will be responded to
-//-with error code 500. To continue working, one must create a new instance of the TDLib client
-authorizationStateClosed = AuthorizationState;
-
-
-//@class FirebaseDeviceVerificationParameters @description Describes parameters to be used for device verification
-
-//@description Device verification must be performed with the SafetyNet Attestation API @nonce Nonce to pass to the SafetyNet Attestation API
-firebaseDeviceVerificationParametersSafetyNet nonce:bytes = FirebaseDeviceVerificationParameters;
-
-//@description Device verification must be performed with the classic Play Integrity verification (https://developer.android.com/google/play/integrity/classic)
-//@nonce Base64url-encoded nonce to pass to the Play Integrity API
-//@cloud_project_number Cloud project number to pass to the Play Integrity API
-firebaseDeviceVerificationParametersPlayIntegrity nonce:string cloud_project_number:int64 = FirebaseDeviceVerificationParameters;
-
-
-//@description Represents the current state of 2-step verification
-//@has_password True, if a 2-step verification password is set
-//@password_hint Hint for the password; may be empty
-//@has_recovery_email_address True, if a recovery email is set
-//@has_passport_data True, if some Telegram Passport elements were saved
-//@recovery_email_address_code_info Information about the recovery email address to which the confirmation email was sent; may be null
-//@login_email_address_pattern Pattern of the email address set up for logging in
-//@pending_reset_date If not 0, point in time (Unix timestamp) after which the 2-step verification password can be reset immediately using resetPassword
-passwordState has_password:Bool password_hint:string has_recovery_email_address:Bool has_passport_data:Bool recovery_email_address_code_info:emailAddressAuthenticationCodeInfo login_email_address_pattern:string pending_reset_date:int32 = PasswordState;
-
-//@description Contains information about the current recovery email address @recovery_email_address Recovery email address
-recoveryEmailAddress recovery_email_address:string = RecoveryEmailAddress;
-
-
-//@description Returns information about the availability of a temporary password, which can be used for payments @has_password True, if a temporary password is available @valid_for Time left before the temporary password expires, in seconds
-temporaryPasswordState has_password:Bool valid_for:int32 = TemporaryPasswordState;
-
-
-//@description Represents a local file
-//@path Local path to the locally available file part; may be empty
-//@can_be_downloaded True, if it is possible to download or generate the file
-//@can_be_deleted True, if the file can be deleted
-//@is_downloading_active True, if the file is currently being downloaded (or a local copy is being generated by some other means)
-//@is_downloading_completed True, if the local copy is fully available
-//@download_offset Download will be started from this offset. downloaded_prefix_size is calculated from this offset
-//@downloaded_prefix_size If is_downloading_completed is false, then only some prefix of the file starting from download_offset is ready to be read. downloaded_prefix_size is the size of that prefix in bytes
-//@downloaded_size Total downloaded file size, in bytes. Can be used only for calculating download progress. The actual file size may be bigger, and some parts of it may contain garbage
-localFile path:string can_be_downloaded:Bool can_be_deleted:Bool is_downloading_active:Bool is_downloading_completed:Bool download_offset:int53 downloaded_prefix_size:int53 downloaded_size:int53 = LocalFile;
-
-//@description Represents a remote file
-//@id Remote file identifier; may be empty. Can be used by the current user across application restarts or even from other devices. Uniquely identifies a file, but a file can have a lot of different valid identifiers.
-//-If the identifier starts with "http://" or "https://", it represents the HTTP URL of the file. TDLib is currently unable to download files if only their URL is known.
-//-If downloadFile/addFileToDownloads is called on such a file or if it is sent to a secret chat, TDLib starts a file generation process by sending updateFileGenerationStart to the application with the HTTP URL in the original_path and "#url#" as the conversion string.
-//-Application must generate the file by downloading it to the specified location
-//@unique_id Unique file identifier; may be empty if unknown. The unique file identifier which is the same for the same file even for different users and is persistent over time
-//@is_uploading_active True, if the file is currently being uploaded (or a remote copy is being generated by some other means)
-//@is_uploading_completed True, if a remote copy is fully available
-//@uploaded_size Size of the remote available part of the file, in bytes; 0 if unknown
-remoteFile id:string unique_id:string is_uploading_active:Bool is_uploading_completed:Bool uploaded_size:int53 = RemoteFile;
-
-//@description Represents a file
-//@id Unique file identifier
-//@size File size, in bytes; 0 if unknown
-//@expected_size Approximate file size in bytes in case the exact file size is unknown. Can be used to show download/upload progress
-//@local Information about the local copy of the file
-//@remote Information about the remote copy of the file
-file id:int32 size:int53 expected_size:int53 local:localFile remote:remoteFile = File;
-
-
-//@class InputFile @description Points to a file
-
-//@description A file defined by its unique identifier @id Unique file identifier
-inputFileId id:int32 = InputFile;
-
-//@description A file defined by its remote identifier. The remote identifier is guaranteed to be usable only if the corresponding file is still accessible to the user and known to TDLib.
-//-For example, if the file is from a message, then the message must be not deleted and accessible to the user. If the file database is disabled, then the corresponding object with the file must be preloaded by the application
-//@id Remote file identifier
-inputFileRemote id:string = InputFile;
-
-//@description A file defined by a local path @path Local path to the file
-inputFileLocal path:string = InputFile;
-
-//@description A file generated by the application. The application must handle updates updateFileGenerationStart and updateFileGenerationStop to generate the file when asked by TDLib
-//@original_path Local path to a file from which the file is generated. The path doesn't have to be a valid path and is used by TDLib only to detect name and MIME type of the generated file
-//@conversion String specifying the conversion applied to the original file; must be persistent across application restarts. Conversions beginning with '#' are reserved for internal TDLib usage
-//@expected_size Expected size of the generated file, in bytes; pass 0 if unknown
-inputFileGenerated original_path:string conversion:string expected_size:int53 = InputFile;
-
-
-//@description Describes an image in JPEG format
-//@type Image type (see https://core.telegram.org/constructor/photoSize)
-//@photo Information about the image file
-//@width Image width
-//@height Image height
-//@progressive_sizes Sizes of progressive JPEG file prefixes, which can be used to preliminarily show the image; in bytes
-photoSize type:string photo:file width:int32 height:int32 progressive_sizes:vector<int32> = PhotoSize;
-
-//@description Thumbnail image of a very poor quality and low resolution @width Thumbnail width, usually doesn't exceed 40 @height Thumbnail height, usually doesn't exceed 40 @data The thumbnail in JPEG format
-minithumbnail width:int32 height:int32 data:bytes = Minithumbnail;
-
-
-//@class ThumbnailFormat @description Describes format of a thumbnail
-
-//@description The thumbnail is in JPEG format
-thumbnailFormatJpeg = ThumbnailFormat;
-
-//@description The thumbnail is in static GIF format. It will be used only for some bot inline query results
-thumbnailFormatGif = ThumbnailFormat;
-
-//@description The thumbnail is in MPEG4 format. It will be used only for some animations and videos
-thumbnailFormatMpeg4 = ThumbnailFormat;
-
-//@description The thumbnail is in PNG format. It will be used only for background patterns
-thumbnailFormatPng = ThumbnailFormat;
-
-//@description The thumbnail is in TGS format. It will be used only for sticker sets
-thumbnailFormatTgs = ThumbnailFormat;
-
-//@description The thumbnail is in WEBM format. It will be used only for sticker sets
-thumbnailFormatWebm = ThumbnailFormat;
-
-//@description The thumbnail is in WEBP format. It will be used only for some stickers and sticker sets
-thumbnailFormatWebp = ThumbnailFormat;
-
-
-//@description Represents a thumbnail
-//@format Thumbnail format
-//@width Thumbnail width
-//@height Thumbnail height
-//@file The thumbnail
-thumbnail format:ThumbnailFormat width:int32 height:int32 file:file = Thumbnail;
-
-
-//@class MaskPoint @description Part of the face, relative to which a mask is placed
-
-//@description The mask is placed relatively to the forehead
-maskPointForehead = MaskPoint;
-
-//@description The mask is placed relatively to the eyes
-maskPointEyes = MaskPoint;
-
-//@description The mask is placed relatively to the mouth
-maskPointMouth = MaskPoint;
-
-//@description The mask is placed relatively to the chin
-maskPointChin = MaskPoint;
-
-//@description Position on a photo where a mask is placed
-//@point Part of the face, relative to which the mask is placed
-//@x_shift Shift by X-axis measured in widths of the mask scaled to the face size, from left to right. (For example, -1.0 will place the mask just to the left of the default mask position)
-//@y_shift Shift by Y-axis measured in heights of the mask scaled to the face size, from top to bottom. (For example, 1.0 will place the mask just below the default mask position)
-//@scale Mask scaling coefficient. (For example, 2.0 means a doubled size)
-maskPosition point:MaskPoint x_shift:double y_shift:double scale:double = MaskPosition;
-
-
-//@class StickerFormat @description Describes format of a sticker
-
-//@description The sticker is an image in WEBP format
-stickerFormatWebp = StickerFormat;
-
-//@description The sticker is an animation in TGS format
-stickerFormatTgs = StickerFormat;
-
-//@description The sticker is a video in WEBM format
-stickerFormatWebm = StickerFormat;
-
-
-//@class StickerType @description Describes type of sticker
-
-//@description The sticker is a regular sticker
-stickerTypeRegular = StickerType;
-
-//@description The sticker is a mask in WEBP format to be placed on photos or videos
-stickerTypeMask = StickerType;
-
-//@description The sticker is a custom emoji to be used inside message text and caption
-stickerTypeCustomEmoji = StickerType;
-
-
-//@class StickerFullType @description Contains full information about sticker type
-
-//@description The sticker is a regular sticker @premium_animation Premium animation of the sticker; may be null. If present, only Telegram Premium users can use the sticker
-stickerFullTypeRegular premium_animation:file = StickerFullType;
-
-//@description The sticker is a mask in WEBP format to be placed on photos or videos @mask_position Position where the mask is placed; may be null
-stickerFullTypeMask mask_position:maskPosition = StickerFullType;
-
-//@description The sticker is a custom emoji to be used inside message text and caption. Currently, only Telegram Premium users can use custom emoji
-//@custom_emoji_id Identifier of the custom emoji
-//@needs_repainting True, if the sticker must be repainted to a text color in messages, the color of the Telegram Premium badge in emoji status, white color on chat photos, or another appropriate color in other places
-stickerFullTypeCustomEmoji custom_emoji_id:int64 needs_repainting:Bool = StickerFullType;
-
-
-//@description Represents a closed vector path. The path begins at the end point of the last command. The coordinate system origin is in the upper-left corner @commands List of vector path commands
-closedVectorPath commands:vector<VectorPathCommand> = ClosedVectorPath;
-
-//@description Represents outline of an image @paths The list of closed vector paths
-outline paths:vector<closedVectorPath> = Outline;
-
-
-//@description Describes one answer option of a poll
-//@text Option text; 1-100 characters. Only custom emoji entities are allowed
-//@voter_count Number of voters for this option, available only for closed or voted polls
-//@vote_percentage The percentage of votes for this option; 0-100
-//@is_chosen True, if the option was chosen by the user
-//@is_being_chosen True, if the option is being chosen by a pending setPollAnswer request
-pollOption text:formattedText voter_count:int32 vote_percentage:int32 is_chosen:Bool is_being_chosen:Bool = PollOption;
-
-
-//@class PollType @description Describes the type of poll
-
-//@description A regular poll @allow_multiple_answers True, if multiple answer options can be chosen simultaneously
-pollTypeRegular allow_multiple_answers:Bool = PollType;
-
-//@description A poll in quiz mode, which has exactly one correct answer option and can be answered only once
-//@correct_option_id 0-based identifier of the correct answer option; -1 for a yet unanswered poll
-//@explanation Text that is shown when the user chooses an incorrect answer or taps on the lamp icon; 0-200 characters with at most 2 line feeds; empty for a yet unanswered poll
-pollTypeQuiz correct_option_id:int32 explanation:formattedText = PollType;
-
-
-//@description Describes an animation file. The animation must be encoded in GIF or MPEG4 format
-//@duration Duration of the animation, in seconds; as defined by the sender
-//@width Width of the animation
-//@height Height of the animation
-//@file_name Original name of the file; as defined by the sender
-//@mime_type MIME type of the file, usually "image/gif" or "video/mp4"
-//@has_stickers True, if stickers were added to the animation. The list of corresponding sticker set can be received using getAttachedStickerSets
-//@minithumbnail Animation minithumbnail; may be null
-//@thumbnail Animation thumbnail in JPEG or MPEG4 format; may be null
-//@animation File containing the animation
-animation duration:int32 width:int32 height:int32 file_name:string mime_type:string has_stickers:Bool minithumbnail:minithumbnail thumbnail:thumbnail animation:file = Animation;
-
-//@description Describes an audio file. Audio is usually in MP3 or M4A format
-//@duration Duration of the audio, in seconds; as defined by the sender
-//@title Title of the audio; as defined by the sender
-//@performer Performer of the audio; as defined by the sender
-//@file_name Original name of the file; as defined by the sender
-//@mime_type The MIME type of the file; as defined by the sender
-//@album_cover_minithumbnail The minithumbnail of the album cover; may be null
-//@album_cover_thumbnail The thumbnail of the album cover in JPEG format; as defined by the sender. The full size thumbnail is expected to be extracted from the downloaded audio file; may be null
-//@external_album_covers Album cover variants to use if the downloaded audio file contains no album cover. Provided thumbnail dimensions are approximate
-//@audio File containing the audio
-audio duration:int32 title:string performer:string file_name:string mime_type:string album_cover_minithumbnail:minithumbnail album_cover_thumbnail:thumbnail external_album_covers:vector<thumbnail> audio:file = Audio;
-
-//@description Describes a document of any type
-//@file_name Original name of the file; as defined by the sender
-//@mime_type MIME type of the file; as defined by the sender
-//@minithumbnail Document minithumbnail; may be null
-//@thumbnail Document thumbnail in JPEG or PNG format (PNG will be used only for background patterns); as defined by the sender; may be null
-//@document File containing the document
-document file_name:string mime_type:string minithumbnail:minithumbnail thumbnail:thumbnail document:file = Document;
-
-//@description Describes a photo
-//@has_stickers True, if stickers were added to the photo. The list of corresponding sticker sets can be received using getAttachedStickerSets
-//@minithumbnail Photo minithumbnail; may be null
-//@sizes Available variants of the photo, in different sizes
-photo has_stickers:Bool minithumbnail:minithumbnail sizes:vector<photoSize> = Photo;
-
-//@description Describes a sticker
-//@id Unique sticker identifier within the set; 0 if none
-//@set_id Identifier of the sticker set to which the sticker belongs; 0 if none
-//@width Sticker width; as defined by the sender
-//@height Sticker height; as defined by the sender
-//@emoji Emoji corresponding to the sticker
-//@format Sticker format
-//@full_type Sticker's full type
-//@thumbnail Sticker thumbnail in WEBP or JPEG format; may be null
-//@sticker File containing the sticker
-sticker id:int64 set_id:int64 width:int32 height:int32 emoji:string format:StickerFormat full_type:StickerFullType thumbnail:thumbnail sticker:file = Sticker;
-
-//@description Describes a video file
-//@duration Duration of the video, in seconds; as defined by the sender
-//@width Video width; as defined by the sender
-//@height Video height; as defined by the sender
-//@file_name Original name of the file; as defined by the sender
-//@mime_type MIME type of the file; as defined by the sender
-//@has_stickers True, if stickers were added to the video. The list of corresponding sticker sets can be received using getAttachedStickerSets
-//@supports_streaming True, if the video is expected to be streamed
-//@minithumbnail Video minithumbnail; may be null
-//@thumbnail Video thumbnail in JPEG or MPEG4 format; as defined by the sender; may be null
-//@video File containing the video
-video duration:int32 width:int32 height:int32 file_name:string mime_type:string has_stickers:Bool supports_streaming:Bool minithumbnail:minithumbnail thumbnail:thumbnail video:file = Video;
-
-//@description Describes a video note. The video must be equal in width and height, cropped to a circle, and stored in MPEG4 format
-//@duration Duration of the video, in seconds; as defined by the sender
-//@waveform A waveform representation of the video note's audio in 5-bit format; may be empty if unknown
-//@length Video width and height; as defined by the sender
-//@minithumbnail Video minithumbnail; may be null
-//@thumbnail Video thumbnail in JPEG format; as defined by the sender; may be null
-//@speech_recognition_result Result of speech recognition in the video note; may be null
-//@video File containing the video
-videoNote duration:int32 waveform:bytes length:int32 minithumbnail:minithumbnail thumbnail:thumbnail speech_recognition_result:SpeechRecognitionResult video:file = VideoNote;
-
-//@description Describes a voice note
-//@duration Duration of the voice note, in seconds; as defined by the sender
-//@waveform A waveform representation of the voice note in 5-bit format
-//@mime_type MIME type of the file; as defined by the sender. Usually, one of "audio/ogg" for Opus in an OGG container, "audio/mpeg" for an MP3 audio, or "audio/mp4" for an M4A audio
-//@speech_recognition_result Result of speech recognition in the voice note; may be null
-//@voice File containing the voice note
-voiceNote duration:int32 waveform:bytes mime_type:string speech_recognition_result:SpeechRecognitionResult voice:file = VoiceNote;
-
-//@description Describes an animated or custom representation of an emoji
-//@sticker Sticker for the emoji; may be null if yet unknown for a custom emoji. If the sticker is a custom emoji, then it can have arbitrary format
-//@sticker_width Expected width of the sticker, which can be used if the sticker is null
-//@sticker_height Expected height of the sticker, which can be used if the sticker is null
-//@fitzpatrick_type Emoji modifier fitzpatrick type; 0-6; 0 if none
-//@sound File containing the sound to be played when the sticker is clicked; may be null. The sound is encoded with the Opus codec, and stored inside an OGG container
-animatedEmoji sticker:sticker sticker_width:int32 sticker_height:int32 fitzpatrick_type:int32 sound:file = AnimatedEmoji;
-
-//@description Describes a user contact
-//@phone_number Phone number of the user
-//@first_name First name of the user; 1-255 characters in length
-//@last_name Last name of the user
-//@vcard Additional data about the user in a form of vCard; 0-2048 bytes in length
-//@user_id Identifier of the user, if known; 0 otherwise
-contact phone_number:string first_name:string last_name:string vcard:string user_id:int53 = Contact;
-
-//@description Describes a location on planet Earth
-//@latitude Latitude of the location in degrees; as defined by the sender
-//@longitude Longitude of the location, in degrees; as defined by the sender
-//@horizontal_accuracy The estimated horizontal accuracy of the location, in meters; as defined by the sender. 0 if unknown
-location latitude:double longitude:double horizontal_accuracy:double = Location;
-
-//@description Describes a venue
-//@location Venue location; as defined by the sender
-//@title Venue name; as defined by the sender
-//@address Venue address; as defined by the sender
-//@provider Provider of the venue database; as defined by the sender. Currently, only "foursquare" and "gplaces" (Google Places) need to be supported
-//@id Identifier of the venue in the provider database; as defined by the sender
-//@type Type of the venue in the provider database; as defined by the sender
-venue location:location title:string address:string provider:string id:string type:string = Venue;
-
-//@description Describes a game. Use getInternalLink with internalLinkTypeGame to share the game
-//@id Unique game identifier
-//@short_name Game short name
-//@title Game title
-//@text Game text, usually containing scoreboards for a game
-//@param_description Game description
-//@photo Game photo
-//@animation Game animation; may be null
-game id:int64 short_name:string title:string text:formattedText description:string photo:photo animation:animation = Game;
-
-//@description Describes a Web App. Use getInternalLink with internalLinkTypeWebApp to share the Web App
-//@short_name Web App short name
-//@title Web App title
-//@param_description Web App description
-//@photo Web App photo
-//@animation Web App animation; may be null
-webApp short_name:string title:string description:string photo:photo animation:animation = WebApp;
-
-//@description Describes a poll
-//@id Unique poll identifier
-//@question Poll question; 1-300 characters. Only custom emoji entities are allowed
-//@options List of poll answer options
-//@total_voter_count Total number of voters, participating in the poll
-//@recent_voter_ids Identifiers of recent voters, if the poll is non-anonymous
-//@is_anonymous True, if the poll is anonymous
-//@type Type of the poll
-//@open_period Amount of time the poll will be active after creation, in seconds
-//@close_date Point in time (Unix timestamp) when the poll will automatically be closed
-//@is_closed True, if the poll is closed
-poll id:int64 question:formattedText options:vector<pollOption> total_voter_count:int32 recent_voter_ids:vector<MessageSender> is_anonymous:Bool type:PollType open_period:int32 close_date:int32 is_closed:Bool = Poll;
-
-
-//@description Describes an alternative re-encoded quality of a video file
-//@id Unique identifier of the alternative video, which is used in the HLS file
-//@width Video width
-//@height Video height
-//@codec Codec used for video file encoding, for example, "h264", "h265", or "av1"
-//@hls_file HLS file describing the video
-//@video File containing the video
-alternativeVideo id:int64 width:int32 height:int32 codec:string hls_file:file video:file = AlternativeVideo;
-
-
-//@description Describes a chat background
-//@id Unique background identifier
-//@is_default True, if this is one of default backgrounds
-//@is_dark True, if the background is dark and is recommended to be used with dark theme
-//@name Unique background name
-//@document Document with the background; may be null. Null only for filled and chat theme backgrounds
-//@type Type of the background
-background id:int64 is_default:Bool is_dark:Bool name:string document:document type:BackgroundType = Background;
-
-//@description Contains a list of backgrounds @backgrounds A list of backgrounds
-backgrounds backgrounds:vector<background> = Backgrounds;
-
-//@description Describes a background set for a specific chat @background The background @dark_theme_dimming Dimming of the background in dark themes, as a percentage; 0-100. Applied only to Wallpaper and Fill types of background
-chatBackground background:background dark_theme_dimming:int32 = ChatBackground;
-
-
-//@description Describes a user profile photo
-//@id Photo identifier; 0 for an empty photo. Can be used to find a photo in a list of user profile photos
-//@small A small (160x160) user profile photo. The file can be downloaded only before the photo is changed
-//@big A big (640x640) user profile photo. The file can be downloaded only before the photo is changed
-//@minithumbnail User profile photo minithumbnail; may be null
-//@has_animation True, if the photo has animated variant
-//@is_personal True, if the photo is visible only for the current user
-profilePhoto id:int64 small:file big:file minithumbnail:minithumbnail has_animation:Bool is_personal:Bool = ProfilePhoto;
-
-//@description Contains basic information about the photo of a chat
-//@small A small (160x160) chat photo variant in JPEG format. The file can be downloaded only before the photo is changed
-//@big A big (640x640) chat photo variant in JPEG format. The file can be downloaded only before the photo is changed
-//@minithumbnail Chat photo minithumbnail; may be null
-//@has_animation True, if the photo has animated variant
-//@is_personal True, if the photo is visible only for the current user
-chatPhotoInfo small:file big:file minithumbnail:minithumbnail has_animation:Bool is_personal:Bool = ChatPhotoInfo;
-
-
-//@class UserType @description Represents the type of user. The following types are possible: regular users, deleted users and bots
-
-//@description A regular user
-userTypeRegular = UserType;
-
-//@description A deleted user or deleted bot. No information on the user besides the user identifier is available. It is not possible to perform any active actions on this type of user
-userTypeDeleted = UserType;
-
-//@description A bot (see https://core.telegram.org/bots)
-//@can_be_edited True, if the bot is owned by the current user and can be edited using the methods toggleBotUsernameIsActive, reorderBotActiveUsernames, setBotProfilePhoto, setBotName, setBotInfoDescription, and setBotInfoShortDescription
-//@can_join_groups True, if the bot can be invited to basic group and supergroup chats
-//@can_read_all_group_messages True, if the bot can read all messages in basic group or supergroup chats and not just those addressed to the bot. In private and channel chats a bot can always read all messages
-//@has_main_web_app True, if the bot has the main Web App
-//@is_inline True, if the bot supports inline queries
-//@inline_query_placeholder Placeholder for inline queries (displayed on the application input field)
-//@need_location True, if the location of the user is expected to be sent with every inline query to this bot
-//@can_connect_to_business True, if the bot supports connection to Telegram Business accounts
-//@can_be_added_to_attachment_menu True, if the bot can be added to attachment or side menu
-//@active_user_count The number of recently active users of the bot
-userTypeBot can_be_edited:Bool can_join_groups:Bool can_read_all_group_messages:Bool has_main_web_app:Bool is_inline:Bool inline_query_placeholder:string need_location:Bool can_connect_to_business:Bool can_be_added_to_attachment_menu:Bool active_user_count:int32 = UserType;
-
-//@description No information on the user besides the user identifier is available, yet this user has not been deleted. This object is extremely rare and must be handled like a deleted user. It is not possible to perform any actions on users of this type
-userTypeUnknown = UserType;
-
-
-//@description Represents a command supported by a bot @command Text of the bot command @param_description Description of the bot command
-botCommand command:string description:string = BotCommand;
-
-//@description Contains a list of bot commands @bot_user_id Bot's user identifier @commands List of bot commands
-botCommands bot_user_id:int53 commands:vector<botCommand> = BotCommands;
-
-//@description Describes a button to be shown instead of bot commands menu button
-//@text Text of the button
-//@url URL of a Web App to open when the button is pressed. If the link is of the type internalLinkTypeWebApp, then it must be processed accordingly. Otherwise, the link must be passed to openWebApp
-botMenuButton text:string url:string = BotMenuButton;
-
-
-//@description Describes parameters of verification that is provided by a bot
-//@icon_custom_emoji_id Identifier of the custom emoji that is used as the verification sign
-//@organization_name Name of the organization that provides verification
-//@default_custom_description Default custom description of verification reason to be used as placeholder in setMessageSenderBotVerification; may be null if none
-//@can_set_custom_description True, if the bot is allowed to provide custom description for verified entities
-botVerificationParameters icon_custom_emoji_id:int64 organization_name:string default_custom_description:formattedText can_set_custom_description:Bool = BotVerificationParameters;
-
-//@description Describes verification status provided by a bot
-//@bot_user_id Identifier of the bot that provided the verification
-//@icon_custom_emoji_id Identifier of the custom emoji that is used as the verification sign
-//@custom_description Custom description of verification reason set by the bot. Can contain only Mention, Hashtag, Cashtag, PhoneNumber, BankCardNumber, Url, and EmailAddress entities
-botVerification bot_user_id:int53 icon_custom_emoji_id:int64 custom_description:formattedText = BotVerification;
-
-//@description Contains information about verification status of a chat or a user
-//@is_verified True, if the chat or the user is verified by Telegram
-//@is_scam True, if the chat or the user is marked as scam by Telegram
-//@is_fake True, if the chat or the user is marked as fake by Telegram
-//@bot_verification_icon_custom_emoji_id Identifier of the custom emoji to be shown as verification sign provided by a bot for the user; 0 if none
-verificationStatus is_verified:Bool is_scam:Bool is_fake:Bool bot_verification_icon_custom_emoji_id:int64 = VerificationStatus;
-
-
-//@description Represents a location to which a chat is connected @location The location @address Location address; 1-64 characters, as defined by the chat owner
-chatLocation location:location address:string = ChatLocation;
-
-
-//@description Represents a birthdate of a user @day Day of the month; 1-31 @month Month of the year; 1-12 @year Birth year; 0 if unknown
-birthdate day:int32 month:int32 year:int32 = Birthdate;
-
-//@description Describes a user that had or will have a birthday soon @user_id User identifier @birthdate Birthdate of the user
-closeBirthdayUser user_id:int53 birthdate:birthdate = CloseBirthdayUser;
-
-
-//@class BusinessAwayMessageSchedule @description Describes conditions for sending of away messages by a Telegram Business account
-
-//@description Send away messages always
-businessAwayMessageScheduleAlways = BusinessAwayMessageSchedule;
-
-//@description Send away messages outside of the business opening hours
-businessAwayMessageScheduleOutsideOfOpeningHours = BusinessAwayMessageSchedule;
-
-//@description Send away messages only in the specified time span
-//@start_date Point in time (Unix timestamp) when the away messages will start to be sent
-//@end_date Point in time (Unix timestamp) when the away messages will stop to be sent
-businessAwayMessageScheduleCustom start_date:int32 end_date:int32 = BusinessAwayMessageSchedule;
-
-
-//@description Represents a location of a business @location The location; may be null if not specified @address Location address; 1-96 characters
-businessLocation location:location address:string = BusinessLocation;
-
-//@description Describes private chats chosen for automatic interaction with a business
-//@chat_ids Identifiers of selected private chats
-//@excluded_chat_ids Identifiers of private chats that are always excluded; for businessConnectedBot only
-//@select_existing_chats True, if all existing private chats are selected
-//@select_new_chats True, if all new private chats are selected
-//@select_contacts True, if all private chats with contacts are selected
-//@select_non_contacts True, if all private chats with non-contacts are selected
-//@exclude_selected If true, then all private chats except the selected are chosen. Otherwise, only the selected chats are chosen
-businessRecipients chat_ids:vector<int53> excluded_chat_ids:vector<int53> select_existing_chats:Bool select_new_chats:Bool select_contacts:Bool select_non_contacts:Bool exclude_selected:Bool = BusinessRecipients;
-
-//@description Describes settings for messages that are automatically sent by a Telegram Business account when it is away
-//@shortcut_id Unique quick reply shortcut identifier for the away messages
-//@recipients Chosen recipients of the away messages
-//@schedule Settings used to check whether the current user is away
-//@offline_only True, if the messages must not be sent if the account was online in the last 10 minutes
-businessAwayMessageSettings shortcut_id:int32 recipients:businessRecipients schedule:BusinessAwayMessageSchedule offline_only:Bool = BusinessAwayMessageSettings;
-
-//@description Describes settings for greeting messages that are automatically sent by a Telegram Business account as response to incoming messages in an inactive private chat
-//@shortcut_id Unique quick reply shortcut identifier for the greeting messages
-//@recipients Chosen recipients of the greeting messages
-//@inactivity_days The number of days after which a chat will be considered as inactive; currently, must be on of 7, 14, 21, or 28
-businessGreetingMessageSettings shortcut_id:int32 recipients:businessRecipients inactivity_days:int32 = BusinessGreetingMessageSettings;
-
-//@description Describes rights of a business bot
-//@can_reply True, if the bot can send and edit messages in the private chats that had incoming messages in the last 24 hours
-//@can_read_messages True, if the bot can mark incoming private messages as read
-//@can_delete_sent_messages True, if the bot can delete sent messages
-//@can_delete_all_messages True, if the bot can delete any message
-//@can_edit_name True, if the bot can edit name of the business account
-//@can_edit_bio True, if the bot can edit bio of the business account
-//@can_edit_profile_photo True, if the bot can edit profile photo of the business account
-//@can_edit_username True, if the bot can edit username of the business account
-//@can_view_gifts_and_stars True, if the bot can view gifts and amount of Telegram Stars owned by the business account
-//@can_sell_gifts True, if the bot can sell regular gifts received by the business account
-//@can_change_gift_settings True, if the bot can change gift receiving settings of the business account
-//@can_transfer_and_upgrade_gifts True, if the bot can transfer and upgrade gifts received by the business account
-//@can_transfer_stars True, if the bot can transfer Telegram Stars received by the business account to account of the bot, or use them to upgrade and transfer gifts
-//@can_manage_stories True, if the bot can send, edit and delete stories
-businessBotRights can_reply:Bool can_read_messages:Bool can_delete_sent_messages:Bool can_delete_all_messages:Bool can_edit_name:Bool can_edit_bio:Bool can_edit_profile_photo:Bool can_edit_username:Bool can_view_gifts_and_stars:Bool can_sell_gifts:Bool can_change_gift_settings:Bool can_transfer_and_upgrade_gifts:Bool can_transfer_stars:Bool can_manage_stories:Bool = BusinessBotRights;
-
-//@description Describes a bot connected to a business account
-//@bot_user_id User identifier of the bot
-//@recipients Private chats that will be accessible to the bot
-//@rights Rights of the bot
-businessConnectedBot bot_user_id:int53 recipients:businessRecipients rights:businessBotRights = BusinessConnectedBot;
-
-//@description Describes settings for a business account start page
-//@title Title text of the start page
-//@message Message text of the start page
-//@sticker Greeting sticker of the start page; may be null if none
-businessStartPage title:string message:string sticker:sticker = BusinessStartPage;
-
-//@description Describes settings for a business account start page to set
-//@title Title text of the start page; 0-getOption("business_start_page_title_length_max") characters
-//@message Message text of the start page; 0-getOption("business_start_page_message_length_max") characters
-//@sticker Greeting sticker of the start page; pass null if none. The sticker must belong to a sticker set and must not be a custom emoji
-inputBusinessStartPage title:string message:string sticker:InputFile = InputBusinessStartPage;
-
-//@description Describes an interval of time when the business is open
-//@start_minute The minute's sequence number in a week, starting on Monday, marking the start of the time interval during which the business is open; 0-7*24*60
-//@end_minute The minute's sequence number in a week, starting on Monday, marking the end of the time interval during which the business is open; 1-8*24*60
-businessOpeningHoursInterval start_minute:int32 end_minute:int32 = BusinessOpeningHoursInterval;
-
-//@description Describes opening hours of a business @time_zone_id Unique time zone identifier @opening_hours Intervals of the time when the business is open
-businessOpeningHours time_zone_id:string opening_hours:vector<businessOpeningHoursInterval> = BusinessOpeningHours;
-
-//@description Contains information about a Telegram Business account
-//@location Location of the business; may be null if none
-//@opening_hours Opening hours of the business; may be null if none. The hours are guaranteed to be valid and has already been split by week days
-//@local_opening_hours Opening hours of the business in the local time; may be null if none. The hours are guaranteed to be valid and has already been split by week days.
-//-Local time zone identifier will be empty. An updateUserFullInfo update is not triggered when value of this field changes
-//@next_open_in Time left before the business will open the next time, in seconds; 0 if unknown. An updateUserFullInfo update is not triggered when value of this field changes
-//@next_close_in Time left before the business will close the next time, in seconds; 0 if unknown. An updateUserFullInfo update is not triggered when value of this field changes
-//@greeting_message_settings The greeting message; may be null if none or the Business account is not of the current user
-//@away_message_settings The away message; may be null if none or the Business account is not of the current user
-//@start_page Information about start page of the account; may be null if none
-businessInfo location:businessLocation opening_hours:businessOpeningHours local_opening_hours:businessOpeningHours next_open_in:int32 next_close_in:int32 greeting_message_settings:businessGreetingMessageSettings away_message_settings:businessAwayMessageSettings start_page:businessStartPage = BusinessInfo;
-
-
-//@description Contains information about a business chat link
-//@link The HTTPS link
-//@text Message draft text that will be added to the input field
-//@title Link title
-//@view_count Number of times the link was used
-businessChatLink link:string text:formattedText title:string view_count:int32 = BusinessChatLink;
-
-//@description Contains a list of business chat links created by the user @links List of links
-businessChatLinks links:vector<businessChatLink> = BusinessChatLinks;
-
-//@description Describes a business chat link to create or edit
-//@text Message draft text that will be added to the input field
-//@title Link title
-inputBusinessChatLink text:formattedText title:string = InputBusinessChatLink;
-
-//@description Contains information about a business chat link
-//@chat_id Identifier of the private chat that created the link
-//@text Message draft text that must be added to the input field
-businessChatLinkInfo chat_id:int53 text:formattedText = BusinessChatLinkInfo;
-
-
-//@class ChatPhotoStickerType @description Describes type of sticker, which was used to create a chat photo
-
-//@description Information about the sticker, which was used to create the chat photo
-//@sticker_set_id Sticker set identifier
-//@sticker_id Identifier of the sticker in the set
-chatPhotoStickerTypeRegularOrMask sticker_set_id:int64 sticker_id:int64 = ChatPhotoStickerType;
-
-//@description Information about the custom emoji, which was used to create the chat photo
-//@custom_emoji_id Identifier of the custom emoji
-chatPhotoStickerTypeCustomEmoji custom_emoji_id:int64 = ChatPhotoStickerType;
-
-
-//@description Information about the sticker, which was used to create the chat photo. The sticker is shown at the center of the photo and occupies at most 67% of it
-//@type Type of the sticker
-//@background_fill The fill to be used as background for the sticker; rotation angle in backgroundFillGradient isn't supported
-chatPhotoSticker type:ChatPhotoStickerType background_fill:BackgroundFill = ChatPhotoSticker;
-
-//@description Animated variant of a chat photo in MPEG4 format
-//@length Animation width and height
-//@file Information about the animation file
-//@main_frame_timestamp Timestamp of the frame, used as a static chat photo
-animatedChatPhoto length:int32 file:file main_frame_timestamp:double = AnimatedChatPhoto;
-
-
-//@description Describes a chat or user profile photo
-//@id Unique photo identifier
-//@added_date Point in time (Unix timestamp) when the photo has been added
-//@minithumbnail Photo minithumbnail; may be null
-//@sizes Available variants of the photo in JPEG format, in different size
-//@animation A big (up to 1280x1280) animated variant of the photo in MPEG4 format; may be null
-//@small_animation A small (160x160) animated variant of the photo in MPEG4 format; may be null even the big animation is available
-//@sticker Sticker-based version of the chat photo; may be null
-chatPhoto id:int64 added_date:int32 minithumbnail:minithumbnail sizes:vector<photoSize> animation:animatedChatPhoto small_animation:animatedChatPhoto sticker:chatPhotoSticker = ChatPhoto;
-
-//@description Contains a list of chat or user profile photos @total_count Total number of photos @photos List of photos
-chatPhotos total_count:int32 photos:vector<chatPhoto> = ChatPhotos;
-
-
-//@class InputChatPhoto @description Describes a photo to be set as a user profile or chat photo
-
-//@description A previously used profile photo of the current user @chat_photo_id Identifier of the current user's profile photo to reuse
-inputChatPhotoPrevious chat_photo_id:int64 = InputChatPhoto;
-
-//@description A static photo in JPEG format @photo Photo to be set as profile photo. Only inputFileLocal and inputFileGenerated are allowed
-inputChatPhotoStatic photo:InputFile = InputChatPhoto;
-
-//@description An animation in MPEG4 format; must be square, at most 10 seconds long, have width between 160 and 1280 and be at most 2MB in size
-//@animation Animation to be set as profile photo. Only inputFileLocal and inputFileGenerated are allowed
-//@main_frame_timestamp Timestamp of the frame, which will be used as static chat photo
-inputChatPhotoAnimation animation:InputFile main_frame_timestamp:double = InputChatPhoto;
-
-//@description A sticker on a custom background @sticker Information about the sticker
-inputChatPhotoSticker sticker:chatPhotoSticker = InputChatPhoto;
-
-
-//@description Describes actions that a user is allowed to take in a chat
-//@can_send_basic_messages True, if the user can send text messages, contacts, giveaways, giveaway winners, invoices, locations, and venues
-//@can_send_audios True, if the user can send music files
-//@can_send_documents True, if the user can send documents
-//@can_send_photos True, if the user can send photos
-//@can_send_videos True, if the user can send videos
-//@can_send_video_notes True, if the user can send video notes
-//@can_send_voice_notes True, if the user can send voice notes
-//@can_send_polls True, if the user can send polls
-//@can_send_other_messages True, if the user can send animations, games, stickers, and dice and use inline bots
-//@can_add_link_previews True, if the user may add a link preview to their messages
-//@can_change_info True, if the user can change the chat title, photo, and other settings
-//@can_invite_users True, if the user can invite new users to the chat
-//@can_pin_messages True, if the user can pin messages
-//@can_create_topics True, if the user can create topics
-chatPermissions can_send_basic_messages:Bool can_send_audios:Bool can_send_documents:Bool can_send_photos:Bool can_send_videos:Bool can_send_video_notes:Bool can_send_voice_notes:Bool can_send_polls:Bool can_send_other_messages:Bool can_add_link_previews:Bool can_change_info:Bool can_invite_users:Bool can_pin_messages:Bool can_create_topics:Bool = ChatPermissions;
-
-//@description Describes rights of the administrator
-//@can_manage_chat True, if the administrator can access the chat event log, get boost list, see hidden supergroup and channel members, report supergroup spam messages and ignore slow mode. Implied by any other privilege; applicable to supergroups and channels only
-//@can_change_info True, if the administrator can change the chat title, photo, and other settings
-//@can_post_messages True, if the administrator can create channel posts or view channel statistics; applicable to channels only
-//@can_edit_messages True, if the administrator can edit messages of other users and pin messages; applicable to channels only
-//@can_delete_messages True, if the administrator can delete messages of other users
-//@can_invite_users True, if the administrator can invite new users to the chat
-//@can_restrict_members True, if the administrator can restrict, ban, or unban chat members or view supergroup statistics; always true for channels
-//@can_pin_messages True, if the administrator can pin messages; applicable to basic groups and supergroups only
-//@can_manage_topics True, if the administrator can create, rename, close, reopen, hide, and unhide forum topics; applicable to forum supergroups only
-//@can_promote_members True, if the administrator can add new administrators with a subset of their own privileges or demote administrators that were directly or indirectly promoted by them
-//@can_manage_video_chats True, if the administrator can manage video chats
-//@can_post_stories True, if the administrator can create new chat stories, or edit and delete posted stories; applicable to supergroups and channels only
-//@can_edit_stories True, if the administrator can edit stories posted by other users, post stories to the chat page, pin chat stories, and access story archive; applicable to supergroups and channels only
-//@can_delete_stories True, if the administrator can delete stories posted by other users; applicable to supergroups and channels only
-//@is_anonymous True, if the administrator isn't shown in the chat member list and sends messages anonymously; applicable to supergroups only
-chatAdministratorRights can_manage_chat:Bool can_change_info:Bool can_post_messages:Bool can_edit_messages:Bool can_delete_messages:Bool can_invite_users:Bool can_restrict_members:Bool can_pin_messages:Bool can_manage_topics:Bool can_promote_members:Bool can_manage_video_chats:Bool can_post_stories:Bool can_edit_stories:Bool can_delete_stories:Bool is_anonymous:Bool = ChatAdministratorRights;
-
-
-//@description Describes a possibly non-integer amount of Telegram Stars
-//@star_count The integer amount of Telegram Stars rounded to 0
-//@nanostar_count The number of 1/1000000000 shares of Telegram Stars; from -999999999 to 999999999
-starAmount star_count:int53 nanostar_count:int32 = StarAmount;
-
-
-//@class StarSubscriptionType @description Describes type of subscription paid in Telegram Stars
-
-//@description Describes a subscription to a channel chat
-//@can_reuse True, if the subscription is active and the user can use the method reuseStarSubscription to join the subscribed chat again
-//@invite_link The invite link that can be used to renew the subscription if it has been expired; may be empty, if the link isn't available anymore
-starSubscriptionTypeChannel can_reuse:Bool invite_link:string = StarSubscriptionType;
-
-//@description Describes a subscription in a bot or a business account
-//@is_canceled_by_bot True, if the subscription was canceled by the bot and can't be extended
-//@title Subscription invoice title
-//@photo Subscription invoice photo
-//@invoice_link The link to the subscription invoice
-starSubscriptionTypeBot is_canceled_by_bot:Bool title:string photo:photo invoice_link:string = StarSubscriptionType;
-
-
-//@description Describes subscription plan paid in Telegram Stars
-//@period The number of seconds between consecutive Telegram Star debiting
-//@star_count The amount of Telegram Stars that must be paid for each period
-starSubscriptionPricing period:int32 star_count:int53 = StarSubscriptionPricing;
-
-//@description Contains information about subscription to a channel chat, a bot, or a business account that was paid in Telegram Stars
-//@id Unique identifier of the subscription
-//@chat_id Identifier of the chat that is subscribed
-//@expiration_date Point in time (Unix timestamp) when the subscription will expire or expired
-//@is_canceled True, if the subscription was canceled
-//@is_expiring True, if the subscription expires soon and there are no enough Telegram Stars on the user's balance to extend it
-//@pricing The subscription plan
-//@type Type of the subscription
-starSubscription id:string chat_id:int53 expiration_date:int32 is_canceled:Bool is_expiring:Bool pricing:starSubscriptionPricing type:StarSubscriptionType = StarSubscription;
-
-//@description Represents a list of Telegram Star subscriptions
-//@star_amount The amount of owned Telegram Stars
-//@subscriptions List of subscriptions for Telegram Stars
-//@required_star_count The number of Telegram Stars required to buy to extend subscriptions expiring soon
-//@next_offset The offset for the next request. If empty, then there are no more results
-starSubscriptions star_amount:starAmount subscriptions:vector<starSubscription> required_star_count:int53 next_offset:string = StarSubscriptions;
-
-
-//@class AffiliateType @description Describes type of affiliate for an affiliate program
-
-//@description The affiliate is the current user
-affiliateTypeCurrentUser = AffiliateType;
-
-//@description The affiliate is a bot owned by the current user @user_id User identifier of the bot
-affiliateTypeBot user_id:int53 = AffiliateType;
-
-//@description The affiliate is a channel chat where the current user has can_post_messages administrator right @chat_id Identifier of the channel chat
-affiliateTypeChannel chat_id:int53 = AffiliateType;
-
-
-//@class AffiliateProgramSortOrder @description Describes the order of the found affiliate programs
-
-//@description The affiliate programs must be sorted by the profitability
-affiliateProgramSortOrderProfitability = AffiliateProgramSortOrder;
-
-//@description The affiliate programs must be sorted by creation date
-affiliateProgramSortOrderCreationDate = AffiliateProgramSortOrder;
-
-//@description The affiliate programs must be sorted by the expected revenue
-affiliateProgramSortOrderRevenue = AffiliateProgramSortOrder;
-
-
-//@description Describes parameters of an affiliate program
-//@commission_per_mille The number of Telegram Stars received by the affiliate for each 1000 Telegram Stars received by the program owner;
-//-getOption("affiliate_program_commission_per_mille_min")-getOption("affiliate_program_commission_per_mille_max")
-//@month_count Number of months the program will be active; 0-36. If 0, then the program is eternal
-affiliateProgramParameters commission_per_mille:int32 month_count:int32 = AffiliateProgramParameters;
-
-//@description Contains information about an active affiliate program
-//@parameters Parameters of the affiliate program
-//@end_date Point in time (Unix timestamp) when the affiliate program will be closed; 0 if the affiliate program isn't scheduled to be closed.
-//-If positive, then the program can't be connected using connectAffiliateProgram, but active connections will work until the date
-//@daily_revenue_per_user_amount The amount of daily revenue per user in Telegram Stars of the bot that created the affiliate program
-affiliateProgramInfo parameters:affiliateProgramParameters end_date:int32 daily_revenue_per_user_amount:starAmount = AffiliateProgramInfo;
-
-//@description Contains information about an affiliate that received commission from a Telegram Star transaction
-//@commission_per_mille The number of Telegram Stars received by the affiliate for each 1000 Telegram Stars received by the program owner
-//@affiliate_chat_id Identifier of the chat which received the commission
-//@star_amount The amount of Telegram Stars that were received by the affiliate; can be negative for refunds
-affiliateInfo commission_per_mille:int32 affiliate_chat_id:int53 star_amount:starAmount = AffiliateInfo;
-
-//@description Describes a found affiliate program
-//@bot_user_id User identifier of the bot created the program
-//@info Information about the affiliate program
-foundAffiliateProgram bot_user_id:int53 info:affiliateProgramInfo = FoundAffiliateProgram;
-
-//@description Represents a list of found affiliate programs
-//@total_count The total number of found affiliate programs
-//@programs The list of affiliate programs
-//@next_offset The offset for the next request. If empty, then there are no more results
-foundAffiliatePrograms total_count:int32 programs:vector<foundAffiliateProgram> next_offset:string = FoundAffiliatePrograms;
-
-//@description Describes an affiliate program that was connected to an affiliate
-//@url The link that can be used to refer users if the program is still active
-//@bot_user_id User identifier of the bot created the program
-//@parameters The parameters of the affiliate program
-//@connection_date Point in time (Unix timestamp) when the affiliate program was connected
-//@is_disconnected True, if the program was canceled by the bot, or disconnected by the chat owner and isn't available anymore
-//@user_count The number of users that used the affiliate program
-//@revenue_star_count The number of Telegram Stars that were earned by the affiliate program
-connectedAffiliateProgram url:string bot_user_id:int53 parameters:affiliateProgramParameters connection_date:int32 is_disconnected:Bool user_count:int64 revenue_star_count:int64 = ConnectedAffiliateProgram;
-
-//@description Represents a list of affiliate programs that were connected to an affiliate
-//@total_count The total number of affiliate programs that were connected to the affiliate
-//@programs The list of connected affiliate programs
-//@next_offset The offset for the next request. If empty, then there are no more results
-connectedAffiliatePrograms total_count:int32 programs:vector<connectedAffiliateProgram> next_offset:string = ConnectedAffiliatePrograms;
-
-
-//@description Contains information about a product that can be paid with invoice
-//@title Product title
-//@param_description Product description
-//@photo Product photo; may be null
-productInfo title:string description:formattedText photo:photo = ProductInfo;
-
-
-//@description Describes an option for buying Telegram Premium to a user
-//@currency ISO 4217 currency code for Telegram Premium subscription payment
-//@amount The amount to pay, in the smallest units of the currency
-//@discount_percentage The discount associated with this option, as a percentage
-//@month_count Number of months the Telegram Premium subscription will be active. Use getPremiumInfoSticker to get the sticker to be used as representation of the Telegram Premium subscription
-//@store_product_id Identifier of the store product associated with the option
-//@payment_link An internal link to be opened for buying Telegram Premium to the user if store payment isn't possible; may be null if direct payment isn't available
-premiumPaymentOption currency:string amount:int53 discount_percentage:int32 month_count:int32 store_product_id:string payment_link:InternalLinkType = PremiumPaymentOption;
-
-//@description Describes an option for buying or upgrading Telegram Premium for self
-//@payment_option Information about the payment option
-//@is_current True, if this is the currently used Telegram Premium subscription option
-//@is_upgrade True, if the payment option can be used to upgrade the existing Telegram Premium subscription
-//@last_transaction_id Identifier of the last in-store transaction for the currently used option
-premiumStatePaymentOption payment_option:premiumPaymentOption is_current:Bool is_upgrade:Bool last_transaction_id:string = PremiumStatePaymentOption;
-
-//@description Describes an option for gifting Telegram Premium to a user. Use telegramPaymentPurposePremiumGift for out-of-store payments or payments in Telegram Stars
-//@currency ISO 4217 currency code for the payment
-//@amount The amount to pay, in the smallest units of the currency
-//@star_count The alternative amount of Telegram Stars to pay; 0 if payment in Telegram Stars is not possible
-//@discount_percentage The discount associated with this option, as a percentage
-//@month_count Number of months the Telegram Premium subscription will be active
-//@store_product_id Identifier of the store product associated with the option
-//@sticker A sticker to be shown along with the option; may be null if unknown
-premiumGiftPaymentOption currency:string amount:int53 star_count:int53 discount_percentage:int32 month_count:int32 store_product_id:string sticker:sticker = PremiumGiftPaymentOption;
-
-//@description Contains a list of options for gifting Telegram Premium to a user @options The list of options sorted by Telegram Premium subscription duration
-premiumGiftPaymentOptions options:vector<premiumGiftPaymentOption> = PremiumGiftPaymentOptions;
-
-//@description Describes an option for creating of Telegram Premium giveaway or manual distribution of Telegram Premium among chat members. Use telegramPaymentPurposePremiumGiftCodes or telegramPaymentPurposePremiumGiveaway for out-of-store payments
-//@currency ISO 4217 currency code for Telegram Premium gift code payment
-//@amount The amount to pay, in the smallest units of the currency
-//@winner_count Number of users which will be able to activate the gift codes
-//@month_count Number of months the Telegram Premium subscription will be active
-//@store_product_id Identifier of the store product associated with the option; may be empty if none
-//@store_product_quantity Number of times the store product must be paid
-premiumGiveawayPaymentOption currency:string amount:int53 winner_count:int32 month_count:int32 store_product_id:string store_product_quantity:int32 = PremiumGiveawayPaymentOption;
-
-//@description Contains a list of options for creating of Telegram Premium giveaway or manual distribution of Telegram Premium among chat members @options The list of options
-premiumGiveawayPaymentOptions options:vector<premiumGiveawayPaymentOption> = PremiumGiveawayPaymentOptions;
-
-//@description Contains information about a Telegram Premium gift code
-//@creator_id Identifier of a chat or a user that created the gift code; may be null if unknown. If null and the code is from messagePremiumGiftCode message, then creator_id from the message can be used
-//@creation_date Point in time (Unix timestamp) when the code was created
-//@is_from_giveaway True, if the gift code was created for a giveaway
-//@giveaway_message_id Identifier of the corresponding giveaway message in the creator_id chat; can be 0 or an identifier of a deleted message
-//@month_count Number of months the Telegram Premium subscription will be active after code activation
-//@user_id Identifier of a user for which the code was created; 0 if none
-//@use_date Point in time (Unix timestamp) when the code was activated; 0 if none
-premiumGiftCodeInfo creator_id:MessageSender creation_date:int32 is_from_giveaway:Bool giveaway_message_id:int53 month_count:int32 user_id:int53 use_date:int32 = PremiumGiftCodeInfo;
-
-//@description Describes an option for buying Telegram Stars. Use telegramPaymentPurposeStars for out-of-store payments
-//@currency ISO 4217 currency code for the payment
-//@amount The amount to pay, in the smallest units of the currency
-//@star_count Number of Telegram Stars that will be purchased
-//@store_product_id Identifier of the store product associated with the option; may be empty if none
-//@is_additional True, if the option must be shown only in the full list of payment options
-starPaymentOption currency:string amount:int53 star_count:int53 store_product_id:string is_additional:Bool = StarPaymentOption;
-
-//@description Contains a list of options for buying Telegram Stars @options The list of options
-starPaymentOptions options:vector<starPaymentOption> = StarPaymentOptions;
-
-//@description Describes an option for the number of winners of a Telegram Star giveaway
-//@winner_count The number of users that will be chosen as winners
-//@won_star_count The number of Telegram Stars that will be won by the winners of the giveaway
-//@is_default True, if the option must be chosen by default
-starGiveawayWinnerOption winner_count:int32 won_star_count:int53 is_default:Bool = StarGiveawayWinnerOption;
-
-//@description Describes an option for creating of Telegram Star giveaway. Use telegramPaymentPurposeStarGiveaway for out-of-store payments
-//@currency ISO 4217 currency code for the payment
-//@amount The amount to pay, in the smallest units of the currency
-//@star_count Number of Telegram Stars that will be distributed among winners
-//@store_product_id Identifier of the store product associated with the option; may be empty if none
-//@yearly_boost_count Number of times the chat will be boosted for one year if the option is chosen
-//@winner_options Allowed options for the number of giveaway winners
-//@is_default True, if the option must be chosen by default
-//@is_additional True, if the option must be shown only in the full list of payment options
-starGiveawayPaymentOption currency:string amount:int53 star_count:int53 store_product_id:string yearly_boost_count:int32 winner_options:vector<starGiveawayWinnerOption> is_default:Bool is_additional:Bool = StarGiveawayPaymentOption;
-
-//@description Contains a list of options for creating of Telegram Star giveaway @options The list of options
-starGiveawayPaymentOptions options:vector<starGiveawayPaymentOption> = StarGiveawayPaymentOptions;
-
-
-//@description Describes gift types that are accepted by a user
-//@unlimited_gifts True, if unlimited regular gifts are accepted
-//@limited_gifts True, if limited regular gifts are accepted
-//@upgraded_gifts True, if upgraded gifts and regular gifts that can be upgraded for free are accepted
-//@premium_subscription True, if Telegram Premium subscription is accepted
-acceptedGiftTypes unlimited_gifts:Bool limited_gifts:Bool upgraded_gifts:Bool premium_subscription:Bool = AcceptedGiftTypes;
-
-//@description Contains settings for gift receiving for a user
-//@show_gift_button True, if a button for sending a gift to the user or by the user must always be shown in the input field
-//@accepted_gift_types Types of gifts accepted by the user; for Telegram Premium users only
-giftSettings show_gift_button:Bool accepted_gift_types:acceptedGiftTypes = GiftSettings;
-
-//@description Describes a model of an upgraded gift
-//@name Name of the model
-//@sticker The sticker representing the upgraded gift
-//@rarity_per_mille The number of upgraded gifts that receive this model for each 1000 gifts upgraded
-upgradedGiftModel name:string sticker:sticker rarity_per_mille:int32 = UpgradedGiftModel;
-
-//@description Describes a symbol shown on the pattern of an upgraded gift
-//@name Name of the symbol
-//@sticker The sticker representing the symbol
-//@rarity_per_mille The number of upgraded gifts that receive this symbol for each 1000 gifts upgraded
-upgradedGiftSymbol name:string sticker:sticker rarity_per_mille:int32 = UpgradedGiftSymbol;
-
-//@description Describes colors of a backdrop of an upgraded gift
-//@center_color A color in the center of the backdrop in the RGB format
-//@edge_color A color on the edges of the backdrop in the RGB format
-//@symbol_color A color to be applied for the symbol in the RGB format
-//@text_color A color for the text on the backdrop in the RGB format
-upgradedGiftBackdropColors center_color:int32 edge_color:int32 symbol_color:int32 text_color:int32 = UpgradedGiftBackdropColors;
-
-//@description Describes a backdrop of an upgraded gift
-//@name Name of the backdrop
-//@colors Colors of the backdrop
-//@rarity_per_mille The number of upgraded gifts that receive this backdrop for each 1000 gifts upgraded
-upgradedGiftBackdrop name:string colors:upgradedGiftBackdropColors rarity_per_mille:int32 = UpgradedGiftBackdrop;
-
-//@description Describes the original details about the gift
-//@sender_id Identifier of the user or the chat that sent the gift; may be null if the gift was private
-//@receiver_id Identifier of the user or the chat that received the gift
-//@text Message added to the gift
-//@date Point in time (Unix timestamp) when the gift was sent
-upgradedGiftOriginalDetails sender_id:MessageSender receiver_id:MessageSender text:formattedText date:int32 = UpgradedGiftOriginalDetails;
-
-//@description Describes a gift that can be sent to another user or channel chat
-//@id Unique identifier of the gift
-//@sticker The sticker representing the gift
-//@star_count Number of Telegram Stars that must be paid for the gift
-//@default_sell_star_count Number of Telegram Stars that can be claimed by the receiver instead of the regular gift by default. If the gift was paid with just bought Telegram Stars, then full value can be claimed
-//@upgrade_star_count Number of Telegram Stars that must be paid to upgrade the gift; 0 if upgrade isn't possible
-//@is_for_birthday True, if the gift is a birthday gift
-//@remaining_count Number of remaining times the gift can be purchased; 0 if not limited or the gift was sold out
-//@total_count Number of total times the gift can be purchased; 0 if not limited
-//@first_send_date Point in time (Unix timestamp) when the gift was send for the first time; for sold out gifts only
-//@last_send_date Point in time (Unix timestamp) when the gift was send for the last time; for sold out gifts only
-gift id:int64 sticker:sticker star_count:int53 default_sell_star_count:int53 upgrade_star_count:int53 is_for_birthday:Bool remaining_count:int32 total_count:int32 first_send_date:int32 last_send_date:int32 = Gift;
-
-//@description Contains a list of gifts that can be sent to another user or channel chat @gifts The list of gifts
-gifts gifts:vector<gift> = Gifts;
-
-//@description Describes an upgraded gift that can be transferred to another owner or transferred to the TON blockchain as an NFT
-//@id Unique identifier of the gift
-//@title The title of the upgraded gift
-//@name Unique name of the upgraded gift that can be used with internalLinkTypeUpgradedGift
-//@number Unique number of the upgraded gift among gifts upgraded from the same gift
-//@total_upgraded_count Total number of gifts that were upgraded from the same gift
-//@max_upgraded_count The maximum number of gifts that can be upgraded from the same gift
-//@owner_id Identifier of the user or the chat that owns the upgraded gift; may be null if none or unknown
-//@owner_address Address of the gift NFT owner in TON blockchain; may be empty if none. Append the address to getOption("ton_blockchain_explorer_url") to get a link with information about the address
-//@owner_name Name of the owner for the case when owner identifier and address aren't known
-//@gift_address Address of the gift NFT in TON blockchain; may be empty if none. Append the address to getOption("ton_blockchain_explorer_url") to get a link with information about the address
-//@model Model of the upgraded gift
-//@symbol Symbol of the upgraded gift
-//@backdrop Backdrop of the upgraded gift
-//@original_details Information about the originally sent gift; may be null if unknown
-upgradedGift id:int64 title:string name:string number:int32 total_upgraded_count:int32 max_upgraded_count:int32 owner_id:MessageSender owner_address:string owner_name:string gift_address:string model:upgradedGiftModel symbol:upgradedGiftSymbol backdrop:upgradedGiftBackdrop original_details:upgradedGiftOriginalDetails = UpgradedGift;
-
-//@description Contains result of gift upgrading
-//@gift The upgraded gift
-//@received_gift_id Unique identifier of the received gift for the current user
-//@is_saved True, if the gift is displayed on the user's or the channel's profile page
-//@can_be_transferred True, if the gift can be transferred to another owner
-//@transfer_star_count Number of Telegram Stars that must be paid to transfer the upgraded gift
-//@export_date Point in time (Unix timestamp) when the gift can be transferred to the TON blockchain as an NFT
-upgradeGiftResult gift:upgradedGift received_gift_id:string is_saved:Bool can_be_transferred:Bool transfer_star_count:int53 export_date:int32 = UpgradeGiftResult;
-
-
-//@class SentGift @description Represents content of a gift received by a user or a channel chat
-
-//@description Regular gift @gift The gift
-sentGiftRegular gift:gift = SentGift;
-
-//@description Upgraded gift @gift The gift
-sentGiftUpgraded gift:upgradedGift = SentGift;
-
-
-//@description Represents a gift received by a user or a chat
-//@received_gift_id Unique identifier of the received gift for the current user; only for the receiver of the gift
-//@sender_id Identifier of a user or a chat that sent the gift; may be null if unknown
-//@text Message added to the gift
-//@is_private True, if the sender and gift text are shown only to the gift receiver; otherwise, everyone are able to see them
-//@is_saved True, if the gift is displayed on the chat's profile page; only for the receiver of the gift
-//@is_pinned True, if the gift is pinned to the top of the chat's profile page
-//@can_be_upgraded True, if the gift is a regular gift that can be upgraded to a unique gift; only for the receiver of the gift
-//@can_be_transferred True, if the gift is an upgraded gift that can be transferred to another owner; only for the receiver of the gift
-//@was_refunded True, if the gift was refunded and isn't available anymore
-//@date Point in time (Unix timestamp) when the gift was sent
-//@gift The gift
-//@sell_star_count Number of Telegram Stars that can be claimed by the receiver instead of the regular gift; 0 if the gift can't be sold by the current user
-//@prepaid_upgrade_star_count Number of Telegram Stars that were paid by the sender for the ability to upgrade the gift
-//@transfer_star_count Number of Telegram Stars that must be paid to transfer the upgraded gift; only for the receiver of the gift
-//@export_date Point in time (Unix timestamp) when the upgraded gift can be transferred to the TON blockchain as an NFT; 0 if NFT export isn't possible; only for the receiver of the gift
-receivedGift received_gift_id:string sender_id:MessageSender text:formattedText is_private:Bool is_saved:Bool is_pinned:Bool can_be_upgraded:Bool can_be_transferred:Bool was_refunded:Bool date:int32 gift:SentGift sell_star_count:int53 prepaid_upgrade_star_count:int53 transfer_star_count:int53 export_date:int32 = ReceivedGift;
-
-//@description Represents a list of gifts received by a user or a chat
-//@total_count The total number of received gifts
-//@gifts The list of gifts
-//@are_notifications_enabled True, if notifications about new gifts of the owner are enabled
-//@next_offset The offset for the next request. If empty, then there are no more results
-receivedGifts total_count:int32 gifts:vector<receivedGift> are_notifications_enabled:Bool next_offset:string = ReceivedGifts;
-
-//@description Contains examples of possible upgraded gifts for the given regular gift
-//@models Examples of possible models that can be chosen for the gift after upgrade
-//@symbols Examples of possible symbols that can be chosen for the gift after upgrade
-//@backdrops Examples of possible backdrops that can be chosen for the gift after upgrade
-giftUpgradePreview models:vector<upgradedGiftModel> symbols:vector<upgradedGiftSymbol> backdrops:vector<upgradedGiftBackdrop> = GiftUpgradePreview;
-
-
-//@class StarTransactionDirection @description Describes direction of a transaction with Telegram Stars
-
-//@description The transaction is incoming and increases the number of owned Telegram Stars
-starTransactionDirectionIncoming = StarTransactionDirection;
-
-//@description The transaction is outgoing and decreases the number of owned Telegram Stars
-starTransactionDirectionOutgoing = StarTransactionDirection;
-
-
-//@class StarTransactionType @description Describes type of transaction with Telegram Stars
-
-//@description The transaction is a deposit of Telegram Stars from the Premium bot; for regular users only
-starTransactionTypePremiumBotDeposit = StarTransactionType;
-
-//@description The transaction is a deposit of Telegram Stars from App Store; for regular users only
-starTransactionTypeAppStoreDeposit = StarTransactionType;
-
-//@description The transaction is a deposit of Telegram Stars from Google Play; for regular users only
-starTransactionTypeGooglePlayDeposit = StarTransactionType;
-
-//@description The transaction is a deposit of Telegram Stars from Fragment; for regular users and bots only
-starTransactionTypeFragmentDeposit = StarTransactionType;
-
-//@description The transaction is a deposit of Telegram Stars by another user; for regular users only
-//@user_id Identifier of the user that gifted Telegram Stars; 0 if the user was anonymous
-//@sticker The sticker to be shown in the transaction information; may be null if unknown
-starTransactionTypeUserDeposit user_id:int53 sticker:sticker = StarTransactionType;
-
-//@description The transaction is a deposit of Telegram Stars from a giveaway; for regular users only
-//@chat_id Identifier of a supergroup or a channel chat that created the giveaway
-//@giveaway_message_id Identifier of the message with the giveaway; can be 0 or an identifier of a deleted message
-starTransactionTypeGiveawayDeposit chat_id:int53 giveaway_message_id:int53 = StarTransactionType;
-
-//@description The transaction is a withdrawal of earned Telegram Stars to Fragment; for regular users, bots, supergroup and channel chats only
-//@withdrawal_state State of the withdrawal; may be null for refunds from Fragment
-starTransactionTypeFragmentWithdrawal withdrawal_state:RevenueWithdrawalState = StarTransactionType;
-
-//@description The transaction is a withdrawal of earned Telegram Stars to Telegram Ad platform; for bots and channel chats only
-starTransactionTypeTelegramAdsWithdrawal = StarTransactionType;
-
-//@description The transaction is a payment for Telegram API usage; for bots only @request_count The number of billed requests
-starTransactionTypeTelegramApiUsage request_count:int32 = StarTransactionType;
-
-//@description The transaction is a purchase of paid media from a bot or a business account by the current user; for regular users only
-//@user_id Identifier of the bot or the business account user that sent the paid media
-//@media The bought media if the transaction wasn't refunded
-starTransactionTypeBotPaidMediaPurchase user_id:int53 media:vector<PaidMedia> = StarTransactionType;
-
-//@description The transaction is a sale of paid media by the bot or a business account managed by the bot; for bots only
-//@user_id Identifier of the user that bought the media
-//@media The bought media
-//@payload Bot-provided payload
-//@affiliate Information about the affiliate which received commission from the transaction; may be null if none
-starTransactionTypeBotPaidMediaSale user_id:int53 media:vector<PaidMedia> payload:string affiliate:affiliateInfo = StarTransactionType;
-
-//@description The transaction is a purchase of paid media from a channel by the current user; for regular users only
-//@chat_id Identifier of the channel chat that sent the paid media
-//@message_id Identifier of the corresponding message with paid media; can be 0 or an identifier of a deleted message
-//@media The bought media if the transaction wasn't refunded
-starTransactionTypeChannelPaidMediaPurchase chat_id:int53 message_id:int53 media:vector<PaidMedia> = StarTransactionType;
-
-//@description The transaction is a sale of paid media by the channel chat; for channel chats only
-//@user_id Identifier of the user that bought the media
-//@message_id Identifier of the corresponding message with paid media; can be 0 or an identifier of a deleted message
-//@media The bought media
-starTransactionTypeChannelPaidMediaSale user_id:int53 message_id:int53 media:vector<PaidMedia> = StarTransactionType;
-
-//@description The transaction is a purchase of a product from a bot or a business account by the current user; for regular users only
-//@user_id Identifier of the bot or the business account user that created the invoice
-//@product_info Information about the bought product
-starTransactionTypeBotInvoicePurchase user_id:int53 product_info:productInfo = StarTransactionType;
-
-//@description The transaction is a sale of a product by the bot; for bots only
-//@user_id Identifier of the user that bought the product
-//@product_info Information about the bought product
-//@invoice_payload Invoice payload
-//@affiliate Information about the affiliate which received commission from the transaction; may be null if none
-starTransactionTypeBotInvoiceSale user_id:int53 product_info:productInfo invoice_payload:bytes affiliate:affiliateInfo = StarTransactionType;
-
-//@description The transaction is a purchase of a subscription from a bot or a business account by the current user; for regular users only
-//@user_id Identifier of the bot or the business account user that created the subscription link
-//@subscription_period The number of seconds between consecutive Telegram Star debitings
-//@product_info Information about the bought subscription
-starTransactionTypeBotSubscriptionPurchase user_id:int53 subscription_period:int32 product_info:productInfo = StarTransactionType;
-
-//@description The transaction is a sale of a subscription by the bot; for bots only
-//@user_id Identifier of the user that bought the subscription
-//@subscription_period The number of seconds between consecutive Telegram Star debitings
-//@product_info Information about the bought subscription
-//@invoice_payload Invoice payload
-//@affiliate Information about the affiliate which received commission from the transaction; may be null if none
-starTransactionTypeBotSubscriptionSale user_id:int53 subscription_period:int32 product_info:productInfo invoice_payload:bytes affiliate:affiliateInfo = StarTransactionType;
-
-//@description The transaction is a purchase of a subscription to a channel chat by the current user; for regular users only
-//@chat_id Identifier of the channel chat that created the subscription
-//@subscription_period The number of seconds between consecutive Telegram Star debitings
-starTransactionTypeChannelSubscriptionPurchase chat_id:int53 subscription_period:int32 = StarTransactionType;
-
-//@description The transaction is a sale of a subscription by the channel chat; for channel chats only
-//@user_id Identifier of the user that bought the subscription
-//@subscription_period The number of seconds between consecutive Telegram Star debitings
-starTransactionTypeChannelSubscriptionSale user_id:int53 subscription_period:int32 = StarTransactionType;
-
-//@description The transaction is a purchase of a regular gift; for regular users and bots only @owner_id Identifier of the user or the channel that received the gift @gift The gift
-starTransactionTypeGiftPurchase owner_id:MessageSender gift:gift = StarTransactionType;
-
-//@description The transaction is a transfer of an upgraded gift; for regular users only @owner_id Identifier of the user or the channel that received the gift @gift The gift
-starTransactionTypeGiftTransfer owner_id:MessageSender gift:upgradedGift = StarTransactionType;
-
-//@description The transaction is a sale of a received gift; for regular users and channel chats only @user_id Identifier of the user that sent the gift @gift The gift
-starTransactionTypeGiftSale user_id:int53 gift:gift = StarTransactionType;
-
-//@description The transaction is an upgrade of a gift; for regular users only @user_id Identifier of the user that initially sent the gift @gift The upgraded gift
-starTransactionTypeGiftUpgrade user_id:int53 gift:upgradedGift = StarTransactionType;
-
-//@description The transaction is a sending of a paid reaction to a message in a channel chat by the current user; for regular users only
-//@chat_id Identifier of the channel chat
-//@message_id Identifier of the reacted message; can be 0 or an identifier of a deleted message
-starTransactionTypeChannelPaidReactionSend chat_id:int53 message_id:int53 = StarTransactionType;
-
-//@description The transaction is a receiving of a paid reaction to a message by the channel chat; for channel chats only
-//@user_id Identifier of the user that added the paid reaction
-//@message_id Identifier of the reacted message; can be 0 or an identifier of a deleted message
-starTransactionTypeChannelPaidReactionReceive user_id:int53 message_id:int53 = StarTransactionType;
-
-//@description The transaction is a receiving of a commission from an affiliate program; for regular users, bots and channel chats only
-//@chat_id Identifier of the chat that created the affiliate program
-//@commission_per_mille The number of Telegram Stars received by the affiliate for each 1000 Telegram Stars received by the program owner
-starTransactionTypeAffiliateProgramCommission chat_id:int53 commission_per_mille:int32 = StarTransactionType;
-
-//@description The transaction is a sending of a paid message; for regular users only @chat_id Identifier of the chat that received the payment @message_count Number of sent paid messages
-starTransactionTypePaidMessageSend chat_id:int53 message_count:int32 = StarTransactionType;
-
-//@description The transaction is a receiving of a paid message; for regular users and supergroup chats only
-//@sender_id Identifier of the sender of the message
-//@message_count Number of received paid messages
-//@commission_per_mille The number of Telegram Stars received by the Telegram for each 1000 Telegram Stars paid for message sending
-//@commission_star_amount The amount of Telegram Stars that were received by Telegram; can be negative for refunds
-starTransactionTypePaidMessageReceive sender_id:MessageSender message_count:int32 commission_per_mille:int32 commission_star_amount:starAmount = StarTransactionType;
-
-//@description The transaction is a purchase of Telegram Premium subscription; for regular users and bots only
-//@user_id Identifier of the user that received the Telegram Premium subscription
-//@month_count Number of months the Telegram Premium subscription will be active
-//@sticker A sticker to be shown in the transaction information; may be null if unknown
-starTransactionTypePremiumPurchase user_id:int53 month_count:int32 sticker:sticker = StarTransactionType;
-
-//@description The transaction is a transfer of Telegram Stars to a business bot; for regular users only @user_id Identifier of the bot that received Telegram Stars
-starTransactionTypeBusinessBotTransferSend user_id:int53 = StarTransactionType;
-
-//@description The transaction is a transfer of Telegram Stars from a business account; for bots only @user_id Identifier of the user that sent Telegram Stars
-starTransactionTypeBusinessBotTransferReceive user_id:int53 = StarTransactionType;
-
-//@description The transaction is a transaction of an unsupported type
-starTransactionTypeUnsupported = StarTransactionType;
-
-
-//@description Represents a transaction changing the amount of owned Telegram Stars
-//@id Unique identifier of the transaction
-//@star_amount The amount of added owned Telegram Stars; negative for outgoing transactions
-//@is_refund True, if the transaction is a refund of a previous transaction
-//@date Point in time (Unix timestamp) when the transaction was completed
-//@type Type of the transaction
-starTransaction id:string star_amount:starAmount is_refund:Bool date:int32 type:StarTransactionType = StarTransaction;
-
-//@description Represents a list of Telegram Star transactions
-//@star_amount The amount of owned Telegram Stars
-//@transactions List of transactions with Telegram Stars
-//@next_offset The offset for the next request. If empty, then there are no more results
-starTransactions star_amount:starAmount transactions:vector<starTransaction> next_offset:string = StarTransactions;
-
-
-//@class GiveawayParticipantStatus @description Contains information about status of a user in a giveaway
-
-//@description The user is eligible for the giveaway
-giveawayParticipantStatusEligible = GiveawayParticipantStatus;
-
-//@description The user participates in the giveaway
-giveawayParticipantStatusParticipating = GiveawayParticipantStatus;
-
-//@description The user can't participate in the giveaway, because they have already been member of the chat
-//@joined_chat_date Point in time (Unix timestamp) when the user joined the chat
-giveawayParticipantStatusAlreadyWasMember joined_chat_date:int32 = GiveawayParticipantStatus;
-
-//@description The user can't participate in the giveaway, because they are an administrator in one of the chats that created the giveaway @chat_id Identifier of the chat administered by the user
-giveawayParticipantStatusAdministrator chat_id:int53 = GiveawayParticipantStatus;
-
-//@description The user can't participate in the giveaway, because they phone number is from a disallowed country @user_country_code A two-letter ISO 3166-1 alpha-2 country code of the user's country
-giveawayParticipantStatusDisallowedCountry user_country_code:string = GiveawayParticipantStatus;
-
-
-//@class GiveawayInfo @description Contains information about a giveaway
-
-//@description Describes an ongoing giveaway
-//@creation_date Point in time (Unix timestamp) when the giveaway was created
-//@status Status of the current user in the giveaway
-//@is_ended True, if the giveaway has ended and results are being prepared
-giveawayInfoOngoing creation_date:int32 status:GiveawayParticipantStatus is_ended:Bool = GiveawayInfo;
-
-//@description Describes a completed giveaway
-//@creation_date Point in time (Unix timestamp) when the giveaway was created
-//@actual_winners_selection_date Point in time (Unix timestamp) when the winners were selected. May be bigger than winners selection date specified in parameters of the giveaway
-//@was_refunded True, if the giveaway was canceled and was fully refunded
-//@is_winner True, if the current user is a winner of the giveaway
-//@winner_count Number of winners in the giveaway
-//@activation_count Number of winners, which activated their gift codes; for Telegram Premium giveaways only
-//@gift_code Telegram Premium gift code that was received by the current user; empty if the user isn't a winner in the giveaway or the giveaway isn't a Telegram Premium giveaway
-//@won_star_count The amount of Telegram Stars won by the current user; 0 if the user isn't a winner in the giveaway or the giveaway isn't a Telegram Star giveaway
-giveawayInfoCompleted creation_date:int32 actual_winners_selection_date:int32 was_refunded:Bool is_winner:Bool winner_count:int32 activation_count:int32 gift_code:string won_star_count:int53 = GiveawayInfo;
-
-
-//@class GiveawayPrize @description Contains information about a giveaway prize
-
-//@description The giveaway sends Telegram Premium subscriptions to the winners @month_count Number of months the Telegram Premium subscription will be active after code activation
-giveawayPrizePremium month_count:int32 = GiveawayPrize;
-
-//@description The giveaway sends Telegram Stars to the winners @star_count Number of Telegram Stars that will be shared by all winners
-giveawayPrizeStars star_count:int53 = GiveawayPrize;
-
-
-//@description Contains information about supported accent color for user/chat name, background of empty chat photo, replies to messages and link previews
-//@id Accent color identifier
-//@built_in_accent_color_id Identifier of a built-in color to use in places, where only one color is needed; 0-6
-//@light_theme_colors The list of 1-3 colors in RGB format, describing the accent color, as expected to be shown in light themes
-//@dark_theme_colors The list of 1-3 colors in RGB format, describing the accent color, as expected to be shown in dark themes
-//@min_channel_chat_boost_level The minimum chat boost level required to use the color in a channel chat
-accentColor id:int32 built_in_accent_color_id:int32 light_theme_colors:vector<int32> dark_theme_colors:vector<int32> min_channel_chat_boost_level:int32 = AccentColor;
-
-//@description Contains information about supported accent colors for user profile photo background in RGB format
-//@palette_colors The list of 1-2 colors in RGB format, describing the colors, as expected to be shown in the color palette settings
-//@background_colors The list of 1-2 colors in RGB format, describing the colors, as expected to be used for the profile photo background
-//@story_colors The list of 2 colors in RGB format, describing the colors of the gradient to be used for the unread active story indicator around profile photo
-profileAccentColors palette_colors:vector<int32> background_colors:vector<int32> story_colors:vector<int32> = ProfileAccentColors;
-
-//@description Contains information about supported accent color for user profile photo background
-//@id Profile accent color identifier
-//@light_theme_colors Accent colors expected to be used in light themes
-//@dark_theme_colors Accent colors expected to be used in dark themes
-//@min_supergroup_chat_boost_level The minimum chat boost level required to use the color in a supergroup chat
-//@min_channel_chat_boost_level The minimum chat boost level required to use the color in a channel chat
-profileAccentColor id:int32 light_theme_colors:profileAccentColors dark_theme_colors:profileAccentColors min_supergroup_chat_boost_level:int32 min_channel_chat_boost_level:int32 = ProfileAccentColor;
-
-
-//@class EmojiStatusType @description Describes type of emoji status
-
-//@description A custom emoji set as emoji status @custom_emoji_id Identifier of the custom emoji in stickerFormatTgs format
-emojiStatusTypeCustomEmoji custom_emoji_id:int64 = EmojiStatusType;
-
-//@description An upgraded gift set as emoji status
-//@upgraded_gift_id Identifier of the upgraded gift
-//@gift_title The title of the upgraded gift
-//@gift_name Unique name of the upgraded gift that can be used with internalLinkTypeUpgradedGift
-//@model_custom_emoji_id Custom emoji identifier of the model of the upgraded gift
-//@symbol_custom_emoji_id Custom emoji identifier of the symbol of the upgraded gift
-//@backdrop_colors Colors of the backdrop of the upgraded gift
-emojiStatusTypeUpgradedGift upgraded_gift_id:int64 gift_title:string gift_name:string model_custom_emoji_id:int64 symbol_custom_emoji_id:int64 backdrop_colors:upgradedGiftBackdropColors = EmojiStatusType;
-
-
-//@description Describes an emoji to be shown instead of the Telegram Premium badge
-//@type Type of the emoji status
-//@expiration_date Point in time (Unix timestamp) when the status will expire; 0 if never
-emojiStatus type:EmojiStatusType expiration_date:int32 = EmojiStatus;
-
-//@description Contains a list of emoji statuses @emoji_statuses The list of emoji statuses identifiers
-emojiStatuses emoji_statuses:vector<emojiStatus> = EmojiStatuses;
-
-//@description Contains a list of custom emoji identifiers for emoji statuses @custom_emoji_ids The list of custom emoji identifiers
-emojiStatusCustomEmojis custom_emoji_ids:vector<int64> = EmojiStatusCustomEmojis;
-
-
-//@description Describes usernames assigned to a user, a supergroup, or a channel
-//@active_usernames List of active usernames; the first one must be shown as the primary username. The order of active usernames can be changed with reorderActiveUsernames, reorderBotActiveUsernames or reorderSupergroupActiveUsernames
-//@disabled_usernames List of currently disabled usernames; the username can be activated with toggleUsernameIsActive, toggleBotUsernameIsActive, or toggleSupergroupUsernameIsActive
-//@editable_username The active username, which can be changed with setUsername or setSupergroupUsername. Information about other active usernames can be received using getCollectibleItemInfo
-usernames active_usernames:vector<string> disabled_usernames:vector<string> editable_username:string = Usernames;
-
-
-//@description Represents a user
-//@id User identifier
-//@first_name First name of the user
-//@last_name Last name of the user
-//@usernames Usernames of the user; may be null
-//@phone_number Phone number of the user
-//@status Current online status of the user
-//@profile_photo Profile photo of the user; may be null
-//@accent_color_id Identifier of the accent color for name, and backgrounds of profile photo, reply header, and link preview
-//@background_custom_emoji_id Identifier of a custom emoji to be shown on the reply header and link preview background; 0 if none
-//@profile_accent_color_id Identifier of the accent color for the user's profile; -1 if none
-//@profile_background_custom_emoji_id Identifier of a custom emoji to be shown on the background of the user's profile; 0 if none
-//@emoji_status Emoji status to be shown instead of the default Telegram Premium badge; may be null
-//@is_contact The user is a contact of the current user
-//@is_mutual_contact The user is a contact of the current user and the current user is a contact of the user
-//@is_close_friend The user is a close friend of the current user; implies that the user is a contact
-//@verification_status Information about verification status of the user; may be null if none
-//@is_premium True, if the user is a Telegram Premium user
-//@is_support True, if the user is Telegram support account
-//@restriction_reason If non-empty, it contains a human-readable description of the reason why access to this user must be restricted
-//@has_active_stories True, if the user has non-expired stories available to the current user
-//@has_unread_active_stories True, if the user has unread non-expired stories available to the current user
-//@restricts_new_chats True, if the user may restrict new chats with non-contacts. Use canSendMessageToUser to check whether the current user can message the user or try to create a chat with them
-//@paid_message_star_count Number of Telegram Stars that must be paid by general user for each sent message to the user. If positive and userFullInfo is unknown, use canSendMessageToUser to check whether the current user must pay
-//@have_access If false, the user is inaccessible, and the only information known about the user is inside this class. Identifier of the user can't be passed to any method
-//@type Type of the user
-//@language_code IETF language tag of the user's language; only available to bots
-//@added_to_attachment_menu True, if the user added the current bot to attachment menu; only available to bots
-user id:int53 first_name:string last_name:string usernames:usernames phone_number:string status:UserStatus profile_photo:profilePhoto accent_color_id:int32 background_custom_emoji_id:int64 profile_accent_color_id:int32 profile_background_custom_emoji_id:int64 emoji_status:emojiStatus is_contact:Bool is_mutual_contact:Bool is_close_friend:Bool verification_status:verificationStatus is_premium:Bool is_support:Bool restriction_reason:string has_active_stories:Bool has_unread_active_stories:Bool restricts_new_chats:Bool paid_message_star_count:int53 have_access:Bool type:UserType language_code:string added_to_attachment_menu:Bool = User;
-
-
-//@description Contains information about a bot
-//@short_description The text that is shown on the bot's profile page and is sent together with the link when users share the bot
-//@param_description The text shown in the chat with the bot if the chat is empty
-//@photo Photo shown in the chat with the bot if the chat is empty; may be null
-//@animation Animation shown in the chat with the bot if the chat is empty; may be null
-//@menu_button Information about a button to show instead of the bot commands menu button; may be null if ordinary bot commands menu must be shown
-//@commands List of the bot commands
-//@privacy_policy_url The HTTP link to the privacy policy of the bot. If empty, then /privacy command must be used if supported by the bot. If the command isn't supported, then https://telegram.org/privacy-tpa must be opened
-//@default_group_administrator_rights Default administrator rights for adding the bot to basic group and supergroup chats; may be null
-//@default_channel_administrator_rights Default administrator rights for adding the bot to channels; may be null
-//@affiliate_program Information about the affiliate program of the bot; may be null if none
-//@web_app_background_light_color Default light background color for bot Web Apps; -1 if not specified
-//@web_app_background_dark_color Default dark background color for bot Web Apps; -1 if not specified
-//@web_app_header_light_color Default light header color for bot Web Apps; -1 if not specified
-//@web_app_header_dark_color Default dark header color for bot Web Apps; -1 if not specified
-//@verification_parameters Parameters of the verification that can be provided by the bot; may be null if none or the current user isn't the owner of the bot
-//@can_get_revenue_statistics True, if the bot's revenue statistics are available to the current user
-//@can_manage_emoji_status True, if the bot can manage emoji status of the current user
-//@has_media_previews True, if the bot has media previews
-//@edit_commands_link The internal link, which can be used to edit bot commands; may be null
-//@edit_description_link The internal link, which can be used to edit bot description; may be null
-//@edit_description_media_link The internal link, which can be used to edit the photo or animation shown in the chat with the bot if the chat is empty; may be null
-//@edit_settings_link The internal link, which can be used to edit bot settings; may be null
-botInfo short_description:string description:string photo:photo animation:animation menu_button:botMenuButton commands:vector<botCommand> privacy_policy_url:string default_group_administrator_rights:chatAdministratorRights default_channel_administrator_rights:chatAdministratorRights affiliate_program:affiliateProgramInfo web_app_background_light_color:int32 web_app_background_dark_color:int32 web_app_header_light_color:int32 web_app_header_dark_color:int32 verification_parameters:botVerificationParameters can_get_revenue_statistics:Bool can_manage_emoji_status:Bool has_media_previews:Bool edit_commands_link:InternalLinkType edit_description_link:InternalLinkType edit_description_media_link:InternalLinkType edit_settings_link:InternalLinkType = BotInfo;
-
-//@description Contains full information about a user
-//@personal_photo User profile photo set by the current user for the contact; may be null. If null and user.profile_photo is null, then the photo is empty; otherwise, it is unknown.
-//-If non-null, then it is the same photo as in user.profile_photo and chat.photo. This photo isn't returned in the list of user photos
-//@photo User profile photo; may be null. If null and user.profile_photo is null, then the photo is empty; otherwise, it is unknown.
-//-If non-null and personal_photo is null, then it is the same photo as in user.profile_photo and chat.photo
-//@public_photo User profile photo visible if the main photo is hidden by privacy settings; may be null. If null and user.profile_photo is null, then the photo is empty; otherwise, it is unknown.
-//-If non-null and both photo and personal_photo are null, then it is the same photo as in user.profile_photo and chat.photo. This photo isn't returned in the list of user photos
-//@block_list Block list to which the user is added; may be null if none
-//@can_be_called True, if the user can be called
-//@supports_video_calls True, if a video call can be created with the user
-//@has_private_calls True, if the user can't be called due to their privacy settings
-//@has_private_forwards True, if the user can't be linked in forwarded messages due to their privacy settings
-//@has_restricted_voice_and_video_note_messages True, if voice and video notes can't be sent or forwarded to the user
-//@has_posted_to_profile_stories True, if the user has posted to profile stories
-//@has_sponsored_messages_enabled True, if the user always enabled sponsored messages; known only for the current user
-//@need_phone_number_privacy_exception True, if the current user needs to explicitly allow to share their phone number with the user when the method addContact is used
-//@set_chat_background True, if the user set chat background for both chat users and it wasn't reverted yet
-//@bio A short user bio; may be null for bots
-//@birthdate Birthdate of the user; may be null if unknown
-//@personal_chat_id Identifier of the personal chat of the user; 0 if none
-//@gift_count Number of saved to profile gifts for other users or the total number of received gifts for the current user
-//@group_in_common_count Number of group chats where both the other user and the current user are a member; 0 for the current user
-//@incoming_paid_message_star_count Number of Telegram Stars that must be paid by the user for each sent message to the current user
-//@outgoing_paid_message_star_count Number of Telegram Stars that must be paid by the current user for each sent message to the user
-//@gift_settings Settings for gift receiving for the user
-//@bot_verification Information about verification status of the user provided by a bot; may be null if none or unknown
-//@business_info Information about business settings for Telegram Business accounts; may be null if none
-//@bot_info For bots, information about the bot; may be null if the user isn't a bot
-userFullInfo personal_photo:chatPhoto photo:chatPhoto public_photo:chatPhoto block_list:BlockList can_be_called:Bool supports_video_calls:Bool has_private_calls:Bool has_private_forwards:Bool has_restricted_voice_and_video_note_messages:Bool has_posted_to_profile_stories:Bool has_sponsored_messages_enabled:Bool need_phone_number_privacy_exception:Bool set_chat_background:Bool bio:formattedText birthdate:birthdate personal_chat_id:int53 gift_count:int32 group_in_common_count:int32 incoming_paid_message_star_count:int53 outgoing_paid_message_star_count:int53 gift_settings:giftSettings bot_verification:botVerification business_info:businessInfo bot_info:botInfo = UserFullInfo;
-
-//@description Represents a list of users @total_count Approximate total number of users found @user_ids A list of user identifiers
-users total_count:int32 user_ids:vector<int53> = Users;
-
-//@description Represents a list of found users @user_ids Identifiers of the found users @next_offset The offset for the next request. If empty, then there are no more results
-foundUsers user_ids:vector<int53> next_offset:string = FoundUsers;
-
-
-//@description Contains information about a chat administrator @user_id User identifier of the administrator @custom_title Custom title of the administrator @is_owner True, if the user is the owner of the chat
-chatAdministrator user_id:int53 custom_title:string is_owner:Bool = ChatAdministrator;
-
-//@description Represents a list of chat administrators @administrators A list of chat administrators
-chatAdministrators administrators:vector<chatAdministrator> = ChatAdministrators;
-
-
-//@class ChatMemberStatus @description Provides information about the status of a member in a chat
-
-//@description The user is the owner of the chat and has all the administrator privileges
-//@custom_title A custom title of the owner; 0-16 characters without emoji; applicable to supergroups only
-//@is_anonymous True, if the creator isn't shown in the chat member list and sends messages anonymously; applicable to supergroups only
-//@is_member True, if the user is a member of the chat
-chatMemberStatusCreator custom_title:string is_anonymous:Bool is_member:Bool = ChatMemberStatus;
-
-//@description The user is a member of the chat and has some additional privileges. In basic groups, administrators can edit and delete messages sent by others, add new members, ban unprivileged members, and manage video chats.
-//-In supergroups and channels, there are more detailed options for administrator privileges
-//@custom_title A custom title of the administrator; 0-16 characters without emoji; applicable to supergroups only
-//@can_be_edited True, if the current user can edit the administrator privileges for the called user
-//@rights Rights of the administrator
-chatMemberStatusAdministrator custom_title:string can_be_edited:Bool rights:chatAdministratorRights = ChatMemberStatus;
-
-//@description The user is a member of the chat, without any additional privileges or restrictions
-//@member_until_date Point in time (Unix timestamp) when the user will be removed from the chat because of the expired subscription; 0 if never. Ignored in setChatMemberStatus
-chatMemberStatusMember member_until_date:int32 = ChatMemberStatus;
-
-//@description The user is under certain restrictions in the chat. Not supported in basic groups and channels
-//@is_member True, if the user is a member of the chat
-//@restricted_until_date Point in time (Unix timestamp) when restrictions will be lifted from the user; 0 if never. If the user is restricted for more than 366 days or for less than 30 seconds from the current time, the user is considered to be restricted forever
-//@permissions User permissions in the chat
-chatMemberStatusRestricted is_member:Bool restricted_until_date:int32 permissions:chatPermissions = ChatMemberStatus;
-
-//@description The user or the chat is not a chat member
-chatMemberStatusLeft = ChatMemberStatus;
-
-//@description The user or the chat was banned (and hence is not a member of the chat). Implies the user can't return to the chat, view messages, or be used as a participant identifier to join a video chat of the chat
-//@banned_until_date Point in time (Unix timestamp) when the user will be unbanned; 0 if never. If the user is banned for more than 366 days or for less than 30 seconds from the current time, the user is considered to be banned forever. Always 0 in basic groups
-chatMemberStatusBanned banned_until_date:int32 = ChatMemberStatus;
-
-
-//@description Describes a user or a chat as a member of another chat
-//@member_id Identifier of the chat member. Currently, other chats can be only Left or Banned. Only supergroups and channels can have other chats as Left or Banned members and these chats must be supergroups or channels
-//@inviter_user_id Identifier of a user that invited/promoted/banned this member in the chat; 0 if unknown
-//@joined_chat_date Point in time (Unix timestamp) when the user joined/was promoted/was banned in the chat
-//@status Status of the member in the chat
-chatMember member_id:MessageSender inviter_user_id:int53 joined_chat_date:int32 status:ChatMemberStatus = ChatMember;
-
-//@description Contains a list of chat members @total_count Approximate total number of chat members found @members A list of chat members
-chatMembers total_count:int32 members:vector<chatMember> = ChatMembers;
-
-
-//@class ChatMembersFilter @description Specifies the kind of chat members to return in searchChatMembers
-
-//@description Returns contacts of the user
-chatMembersFilterContacts = ChatMembersFilter;
-
-//@description Returns the owner and administrators
-chatMembersFilterAdministrators = ChatMembersFilter;
-
-//@description Returns all chat members, including restricted chat members
-chatMembersFilterMembers = ChatMembersFilter;
-
-//@description Returns users which can be mentioned in the chat @message_thread_id If non-zero, the identifier of the current message thread
-chatMembersFilterMention message_thread_id:int53 = ChatMembersFilter;
-
-//@description Returns users under certain restrictions in the chat; can be used only by administrators in a supergroup
-chatMembersFilterRestricted = ChatMembersFilter;
-
-//@description Returns users banned from the chat; can be used only by administrators in a supergroup or in a channel
-chatMembersFilterBanned = ChatMembersFilter;
-
-//@description Returns bot members of the chat
-chatMembersFilterBots = ChatMembersFilter;
-
-
-//@class SupergroupMembersFilter @description Specifies the kind of chat members to return in getSupergroupMembers
-
-//@description Returns recently active users in reverse chronological order
-supergroupMembersFilterRecent = SupergroupMembersFilter;
-
-//@description Returns contacts of the user, which are members of the supergroup or channel @query Query to search for
-supergroupMembersFilterContacts query:string = SupergroupMembersFilter;
-
-//@description Returns the owner and administrators
-supergroupMembersFilterAdministrators = SupergroupMembersFilter;
-
-//@description Used to search for supergroup or channel members via a (string) query @query Query to search for
-supergroupMembersFilterSearch query:string = SupergroupMembersFilter;
-
-//@description Returns restricted supergroup members; can be used only by administrators @query Query to search for
-supergroupMembersFilterRestricted query:string = SupergroupMembersFilter;
-
-//@description Returns users banned from the supergroup or channel; can be used only by administrators @query Query to search for
-supergroupMembersFilterBanned query:string = SupergroupMembersFilter;
-
-//@description Returns users which can be mentioned in the supergroup @query Query to search for @message_thread_id If non-zero, the identifier of the current message thread
-supergroupMembersFilterMention query:string message_thread_id:int53 = SupergroupMembersFilter;
-
-//@description Returns bot members of the supergroup or channel
-supergroupMembersFilterBots = SupergroupMembersFilter;
-
-
-//@description Contains a chat invite link
-//@invite_link Chat invite link
-//@name Name of the link
-//@creator_user_id User identifier of an administrator created the link
-//@date Point in time (Unix timestamp) when the link was created
-//@edit_date Point in time (Unix timestamp) when the link was last edited; 0 if never or unknown
-//@expiration_date Point in time (Unix timestamp) when the link will expire; 0 if never
-//@subscription_pricing Information about subscription plan that is applied to the users joining the chat by the link; may be null if the link doesn't require subscription
-//@member_limit The maximum number of members, which can join the chat using the link simultaneously; 0 if not limited. Always 0 if the link requires approval
-//@member_count Number of chat members, which joined the chat using the link
-//@expired_member_count Number of chat members, which joined the chat using the link, but have already left because of expired subscription; for subscription links only
-//@pending_join_request_count Number of pending join requests created using this link
-//@creates_join_request True, if the link only creates join request. If true, total number of joining members will be unlimited
-//@is_primary True, if the link is primary. Primary invite link can't have name, expiration date, or usage limit. There is exactly one primary invite link for each administrator with can_invite_users right at a given time
-//@is_revoked True, if the link was revoked
-chatInviteLink invite_link:string name:string creator_user_id:int53 date:int32 edit_date:int32 expiration_date:int32 subscription_pricing:starSubscriptionPricing member_limit:int32 member_count:int32 expired_member_count:int32 pending_join_request_count:int32 creates_join_request:Bool is_primary:Bool is_revoked:Bool = ChatInviteLink;
-
-//@description Contains a list of chat invite links @total_count Approximate total number of chat invite links found @invite_links List of invite links
-chatInviteLinks total_count:int32 invite_links:vector<chatInviteLink> = ChatInviteLinks;
-
-//@description Describes a chat administrator with a number of active and revoked chat invite links
-//@user_id Administrator's user identifier
-//@invite_link_count Number of active invite links
-//@revoked_invite_link_count Number of revoked invite links
-chatInviteLinkCount user_id:int53 invite_link_count:int32 revoked_invite_link_count:int32 = ChatInviteLinkCount;
-
-//@description Contains a list of chat invite link counts @invite_link_counts List of invite link counts
-chatInviteLinkCounts invite_link_counts:vector<chatInviteLinkCount> = ChatInviteLinkCounts;
-
-//@description Describes a chat member joined a chat via an invite link
-//@user_id User identifier
-//@joined_chat_date Point in time (Unix timestamp) when the user joined the chat
-//@via_chat_folder_invite_link True, if the user has joined the chat using an invite link for a chat folder
-//@approver_user_id User identifier of the chat administrator, approved user join request
-chatInviteLinkMember user_id:int53 joined_chat_date:int32 via_chat_folder_invite_link:Bool approver_user_id:int53 = ChatInviteLinkMember;
-
-//@description Contains a list of chat members joined a chat via an invite link @total_count Approximate total number of chat members found @members List of chat members, joined a chat via an invite link
-chatInviteLinkMembers total_count:int32 members:vector<chatInviteLinkMember> = ChatInviteLinkMembers;
-
-
-//@class InviteLinkChatType @description Describes the type of chat to which points an invite link
-
-//@description The link is an invite link for a basic group
-inviteLinkChatTypeBasicGroup = InviteLinkChatType;
-
-//@description The link is an invite link for a supergroup
-inviteLinkChatTypeSupergroup = InviteLinkChatType;
-
-//@description The link is an invite link for a channel
-inviteLinkChatTypeChannel = InviteLinkChatType;
-
-
-//@description Contains information about subscription plan that must be paid by the user to use a chat invite link
-//@pricing Information about subscription plan that must be paid by the user to use the link
-//@can_reuse True, if the user has already paid for the subscription and can use joinChatByInviteLink to join the subscribed chat again
-//@form_id Identifier of the payment form to use for subscription payment; 0 if the subscription can't be paid
-chatInviteLinkSubscriptionInfo pricing:starSubscriptionPricing can_reuse:Bool form_id:int64 = ChatInviteLinkSubscriptionInfo;
-
-//@description Contains information about a chat invite link
-//@chat_id Chat identifier of the invite link; 0 if the user has no access to the chat before joining
-//@accessible_for If non-zero, the amount of time for which read access to the chat will remain available, in seconds
-//@type Type of the chat
-//@title Title of the chat
-//@photo Chat photo; may be null
-//@accent_color_id Identifier of the accent color for chat title and background of chat photo
-//@param_description Chat description
-//@member_count Number of members in the chat
-//@member_user_ids User identifiers of some chat members that may be known to the current user
-//@subscription_info Information about subscription plan that must be paid by the user to use the link; may be null if the link doesn't require subscription
-//@creates_join_request True, if the link only creates join request
-//@is_public True, if the chat is a public supergroup or channel, i.e. it has a username or it is a location-based supergroup
-//@verification_status Information about verification status of the chat; may be null if none
-chatInviteLinkInfo chat_id:int53 accessible_for:int32 type:InviteLinkChatType title:string photo:chatPhotoInfo accent_color_id:int32 description:string member_count:int32 member_user_ids:vector<int53> subscription_info:chatInviteLinkSubscriptionInfo creates_join_request:Bool is_public:Bool verification_status:verificationStatus = ChatInviteLinkInfo;
-
-
-//@description Describes a user that sent a join request and waits for administrator approval @user_id User identifier @date Point in time (Unix timestamp) when the user sent the join request @bio A short bio of the user
-chatJoinRequest user_id:int53 date:int32 bio:string = ChatJoinRequest;
-
-//@description Contains a list of requests to join a chat @total_count Approximate total number of requests found @requests List of the requests
-chatJoinRequests total_count:int32 requests:vector<chatJoinRequest> = ChatJoinRequests;
-
-//@description Contains information about pending join requests for a chat @total_count Total number of pending join requests @user_ids Identifiers of at most 3 users sent the newest pending join requests
-chatJoinRequestsInfo total_count:int32 user_ids:vector<int53> = ChatJoinRequestsInfo;
-
-
-//@description Represents a basic group of 0-200 users (must be upgraded to a supergroup to accommodate more than 200 users)
-//@id Group identifier
-//@member_count Number of members in the group
-//@status Status of the current user in the group
-//@is_active True, if the group is active
-//@upgraded_to_supergroup_id Identifier of the supergroup to which this group was upgraded; 0 if none
-basicGroup id:int53 member_count:int32 status:ChatMemberStatus is_active:Bool upgraded_to_supergroup_id:int53 = BasicGroup;
-
-//@description Contains full information about a basic group
-//@photo Chat photo; may be null if empty or unknown. If non-null, then it is the same photo as in chat.photo
-//@param_description Group description. Updated only after the basic group is opened
-//@creator_user_id User identifier of the creator of the group; 0 if unknown
-//@members Group members
-//@can_hide_members True, if non-administrators and non-bots can be hidden in responses to getSupergroupMembers and searchChatMembers for non-administrators after upgrading the basic group to a supergroup
-//@can_toggle_aggressive_anti_spam True, if aggressive anti-spam checks can be enabled or disabled in the supergroup after upgrading the basic group to a supergroup
-//@invite_link Primary invite link for this group; may be null. For chat administrators with can_invite_users right only. Updated only after the basic group is opened
-//@bot_commands List of commands of bots in the group
-basicGroupFullInfo photo:chatPhoto description:string creator_user_id:int53 members:vector<chatMember> can_hide_members:Bool can_toggle_aggressive_anti_spam:Bool invite_link:chatInviteLink bot_commands:vector<botCommands> = BasicGroupFullInfo;
-
-
-//@description Represents a supergroup or channel with zero or more members (subscribers in the case of channels). From the point of view of the system, a channel is a special kind of a supergroup:
-//-only administrators can post and see the list of members, and posts from all administrators use the name and photo of the channel instead of individual names and profile photos.
-//-Unlike supergroups, channels can have an unlimited number of subscribers
-//@id Supergroup or channel identifier
-//@usernames Usernames of the supergroup or channel; may be null
-//@date Point in time (Unix timestamp) when the current user joined, or the point in time when the supergroup or channel was created, in case the user is not a member
-//@status Status of the current user in the supergroup or channel; custom title will always be empty
-//@member_count Number of members in the supergroup or channel; 0 if unknown. Currently, it is guaranteed to be known only if the supergroup or channel was received through
-//-getChatSimilarChats, getChatsToSendStories, getCreatedPublicChats, getGroupsInCommon, getInactiveSupergroupChats, getRecommendedChats, getSuitableDiscussionChats,
-//-getUserPrivacySettingRules, getVideoChatAvailableParticipants, searchPublicChats, or in chatFolderInviteLinkInfo.missing_chat_ids, or in userFullInfo.personal_chat_id,
-//-or for chats with messages or stories from publicForwards and foundStories
-//@boost_level Approximate boost level for the chat
-//@has_linked_chat True, if the channel has a discussion group, or the supergroup is the designated discussion group for a channel
-//@has_location True, if the supergroup is connected to a location, i.e. the supergroup is a location-based supergroup
-//@sign_messages True, if messages sent to the channel contains name of the sender. This field is only applicable to channels
-//@show_message_sender True, if messages sent to the channel have information about the sender user. This field is only applicable to channels
-//@join_to_send_messages True, if users need to join the supergroup before they can send messages. Always true for channels and non-discussion supergroups
-//@join_by_request True, if all users directly joining the supergroup need to be approved by supergroup administrators. Always false for channels and supergroups without username, location, or a linked chat
-//@is_slow_mode_enabled True, if the slow mode is enabled in the supergroup
-//@is_channel True, if the supergroup is a channel
-//@is_broadcast_group True, if the supergroup is a broadcast group, i.e. only administrators can send messages and there is no limit on the number of members
-//@is_forum True, if the supergroup is a forum with topics
-//@verification_status Information about verification status of the supergroup or channel; may be null if none
-//@has_sensitive_content True, if content of media messages in the supergroup or channel chat must be hidden with 18+ spoiler
-//@restriction_reason If non-empty, contains a human-readable description of the reason why access to this supergroup or channel must be restricted
-//@paid_message_star_count Number of Telegram Stars that must be paid by non-administrator users of the supergroup chat for each sent message
-//@has_active_stories True, if the supergroup or channel has non-expired stories available to the current user
-//@has_unread_active_stories True, if the supergroup or channel has unread non-expired stories available to the current user
-supergroup id:int53 usernames:usernames date:int32 status:ChatMemberStatus member_count:int32 boost_level:int32 has_linked_chat:Bool has_location:Bool sign_messages:Bool show_message_sender:Bool join_to_send_messages:Bool join_by_request:Bool is_slow_mode_enabled:Bool is_channel:Bool is_broadcast_group:Bool is_forum:Bool verification_status:verificationStatus has_sensitive_content:Bool restriction_reason:string paid_message_star_count:int53 has_active_stories:Bool has_unread_active_stories:Bool = Supergroup;
-
-//@description Contains full information about a supergroup or channel
-//@photo Chat photo; may be null if empty or unknown. If non-null, then it is the same photo as in chat.photo
-//@param_description Supergroup or channel description
-//@member_count Number of members in the supergroup or channel; 0 if unknown
-//@administrator_count Number of privileged users in the supergroup or channel; 0 if unknown
-//@restricted_count Number of restricted users in the supergroup; 0 if unknown
-//@banned_count Number of users banned from chat; 0 if unknown
-//@linked_chat_id Chat identifier of a discussion group for the channel, or a channel, for which the supergroup is the designated discussion group; 0 if none or unknown
-//@slow_mode_delay Delay between consecutive sent messages for non-administrator supergroup members, in seconds
-//@slow_mode_delay_expires_in Time left before next message can be sent in the supergroup, in seconds. An updateSupergroupFullInfo update is not triggered when value of this field changes, but both new and old values are non-zero
-//@can_enable_paid_messages True, if paid messages can be enabled in the supergroup chat; for supergroup only
-//@can_enable_paid_reaction True, if paid reaction can be enabled in the channel chat; for channels only
-//@can_get_members True, if members of the chat can be retrieved via getSupergroupMembers or searchChatMembers
-//@has_hidden_members True, if non-administrators can receive only administrators and bots using getSupergroupMembers or searchChatMembers
-//@can_hide_members True, if non-administrators and non-bots can be hidden in responses to getSupergroupMembers and searchChatMembers for non-administrators
-//@can_set_sticker_set True, if the supergroup sticker set can be changed
-//@can_set_location True, if the supergroup location can be changed
-//@can_get_statistics True, if the supergroup or channel statistics are available
-//@can_get_revenue_statistics True, if the supergroup or channel revenue statistics are available
-//@can_get_star_revenue_statistics True, if the supergroup or channel Telegram Star revenue statistics are available
-//@can_send_gift True, if the user can send a gift to the supergroup or channel using sendGift or transferGift
-//@can_toggle_aggressive_anti_spam True, if aggressive anti-spam checks can be enabled or disabled in the supergroup
-//@is_all_history_available True, if new chat members will have access to old messages. In public, discussion, of forum groups and all channels, old messages are always available,
-//-so this option affects only private non-forum supergroups without a linked chat. The value of this field is only available to chat administrators
-//@can_have_sponsored_messages True, if the chat can have sponsored messages. The value of this field is only available to the owner of the chat
-//@has_aggressive_anti_spam_enabled True, if aggressive anti-spam checks are enabled in the supergroup. The value of this field is only available to chat administrators
-//@has_paid_media_allowed True, if paid media can be sent and forwarded to the channel chat; for channels only
-//@has_pinned_stories True, if the supergroup or channel has pinned stories
-//@gift_count Number of saved to profile gifts for channels without can_post_messages administrator right, otherwise, the total number of received gifts
-//@my_boost_count Number of times the current user boosted the supergroup or channel
-//@unrestrict_boost_count Number of times the supergroup must be boosted by a user to ignore slow mode and chat permission restrictions; 0 if unspecified
-//@sticker_set_id Identifier of the supergroup sticker set that must be shown before user sticker sets; 0 if none
-//@custom_emoji_sticker_set_id Identifier of the custom emoji sticker set that can be used in the supergroup without Telegram Premium subscription; 0 if none
-//@location Location to which the supergroup is connected; may be null if none
-//@invite_link Primary invite link for the chat; may be null. For chat administrators with can_invite_users right only
-//@bot_commands List of commands of bots in the group
-//@bot_verification Information about verification status of the supergroup or the channel provided by a bot; may be null if none or unknown
-//@upgraded_from_basic_group_id Identifier of the basic group from which supergroup was upgraded; 0 if none
-//@upgraded_from_max_message_id Identifier of the last message in the basic group from which supergroup was upgraded; 0 if none
-supergroupFullInfo photo:chatPhoto description:string member_count:int32 administrator_count:int32 restricted_count:int32 banned_count:int32 linked_chat_id:int53 slow_mode_delay:int32 slow_mode_delay_expires_in:double can_enable_paid_messages:Bool can_enable_paid_reaction:Bool can_get_members:Bool has_hidden_members:Bool can_hide_members:Bool can_set_sticker_set:Bool can_set_location:Bool can_get_statistics:Bool can_get_revenue_statistics:Bool can_get_star_revenue_statistics:Bool can_send_gift:Bool can_toggle_aggressive_anti_spam:Bool is_all_history_available:Bool can_have_sponsored_messages:Bool has_aggressive_anti_spam_enabled:Bool has_paid_media_allowed:Bool has_pinned_stories:Bool gift_count:int32 my_boost_count:int32 unrestrict_boost_count:int32 sticker_set_id:int64 custom_emoji_sticker_set_id:int64 location:chatLocation invite_link:chatInviteLink bot_commands:vector<botCommands> bot_verification:botVerification upgraded_from_basic_group_id:int53 upgraded_from_max_message_id:int53 = SupergroupFullInfo;
-
-
-//@class SecretChatState @description Describes the current secret chat state
-
-//@description The secret chat is not yet created; waiting for the other user to get online
-secretChatStatePending = SecretChatState;
-
-//@description The secret chat is ready to use
-secretChatStateReady = SecretChatState;
-
-//@description The secret chat is closed
-secretChatStateClosed = SecretChatState;
-
-
-//@description Represents a secret chat
-//@id Secret chat identifier
-//@user_id Identifier of the chat partner
-//@state State of the secret chat
-//@is_outbound True, if the chat was created by the current user; false otherwise
-//@key_hash Hash of the currently used key for comparison with the hash of the chat partner's key. This is a string of 36 little-endian bytes, which must be split into groups of 2 bits, each denoting a pixel of one of 4 colors FFFFFF, D5E6F3, 2D5775, and 2F99C9.
-//-The pixels must be used to make a 12x12 square image filled from left to right, top to bottom. Alternatively, the first 32 bytes of the hash can be converted to the hexadecimal format and printed as 32 2-digit hex numbers
-//@layer Secret chat layer; determines features supported by the chat partner's application. Nested text entities and underline and strikethrough entities are supported if the layer >= 101,
-//-files bigger than 2000MB are supported if the layer >= 143, spoiler and custom emoji text entities are supported if the layer >= 144
-secretChat id:int32 user_id:int53 state:SecretChatState is_outbound:Bool key_hash:bytes layer:int32 = SecretChat;
-
-
-//@class MessageSender @description Contains information about the sender of a message
-
-//@description The message was sent by a known user @user_id Identifier of the user that sent the message
-messageSenderUser user_id:int53 = MessageSender;
-
-//@description The message was sent on behalf of a chat @chat_id Identifier of the chat that sent the message
-messageSenderChat chat_id:int53 = MessageSender;
-
-
-//@description Represents a list of message senders @total_count Approximate total number of messages senders found @senders List of message senders
-messageSenders total_count:int32 senders:vector<MessageSender> = MessageSenders;
-
-
-//@description Represents a message sender, which can be used to send messages in a chat @sender The message sender @needs_premium True, if Telegram Premium is needed to use the message sender
-chatMessageSender sender:MessageSender needs_premium:Bool = ChatMessageSender;
-
-//@description Represents a list of message senders, which can be used to send messages in a chat @senders List of available message senders
-chatMessageSenders senders:vector<chatMessageSender> = ChatMessageSenders;
-
-
-//@class MessageReadDate @description Describes read date of a recent outgoing message in a private chat
-
-//@description Contains read date of the message @read_date Point in time (Unix timestamp) when the message was read by the other user
-messageReadDateRead read_date:int32 = MessageReadDate;
-
-//@description The message is unread yet
-messageReadDateUnread = MessageReadDate;
-
-//@description The message is too old to get read date
-messageReadDateTooOld = MessageReadDate;
-
-//@description The read date is unknown due to privacy settings of the other user
-messageReadDateUserPrivacyRestricted = MessageReadDate;
-
-//@description The read date is unknown due to privacy settings of the current user, but will be known if the user subscribes to Telegram Premium
-messageReadDateMyPrivacyRestricted = MessageReadDate;
-
-
-//@description Represents a viewer of a message @user_id User identifier of the viewer @view_date Approximate point in time (Unix timestamp) when the message was viewed
-messageViewer user_id:int53 view_date:int32 = MessageViewer;
-
-//@description Represents a list of message viewers @viewers List of message viewers
-messageViewers viewers:vector<messageViewer> = MessageViewers;
-
-
-//@class MessageOrigin @description Contains information about the origin of a message
-
-//@description The message was originally sent by a known user @sender_user_id Identifier of the user that originally sent the message
-messageOriginUser sender_user_id:int53 = MessageOrigin;
-
-//@description The message was originally sent by a user, which is hidden by their privacy settings @sender_name Name of the sender
-messageOriginHiddenUser sender_name:string = MessageOrigin;
-
-//@description The message was originally sent on behalf of a chat
-//@sender_chat_id Identifier of the chat that originally sent the message
-//@author_signature For messages originally sent by an anonymous chat administrator, original message author signature
-messageOriginChat sender_chat_id:int53 author_signature:string = MessageOrigin;
-
-//@description The message was originally a post in a channel
-//@chat_id Identifier of the channel chat to which the message was originally sent
-//@message_id Message identifier of the original message
-//@author_signature Original post author signature
-messageOriginChannel chat_id:int53 message_id:int53 author_signature:string = MessageOrigin;
-
-
-//@description Contains information about the last message from which a new message was forwarded last time
-//@chat_id Identifier of the chat to which the message that was forwarded belonged; may be 0 if unknown
-//@message_id Identifier of the message; may be 0 if unknown
-//@sender_id Identifier of the sender of the message; may be null if unknown or the new message was forwarded not to Saved Messages
-//@sender_name Name of the sender of the message if the sender is hidden by their privacy settings
-//@date Point in time (Unix timestamp) when the message is sent; 0 if unknown
-//@is_outgoing True, if the message that was forwarded is outgoing; always false if sender is unknown
-forwardSource chat_id:int53 message_id:int53 sender_id:MessageSender sender_name:string date:int32 is_outgoing:Bool = ForwardSource;
-
-
-//@class ReactionType @description Describes type of message reaction
-
-//@description A reaction with an emoji @emoji Text representation of the reaction
-reactionTypeEmoji emoji:string = ReactionType;
-
-//@description A reaction with a custom emoji @custom_emoji_id Unique identifier of the custom emoji
-reactionTypeCustomEmoji custom_emoji_id:int64 = ReactionType;
-
-//@description The paid reaction in a channel chat
-reactionTypePaid = ReactionType;
-
-
-//@class PaidReactionType @description Describes type of paid message reaction
-
-//@description A paid reaction on behalf of the current user
-paidReactionTypeRegular = PaidReactionType;
-
-//@description An anonymous paid reaction
-paidReactionTypeAnonymous = PaidReactionType;
-
-//@description A paid reaction on behalf of an owned chat @chat_id Identifier of the chat
-paidReactionTypeChat chat_id:int53 = PaidReactionType;
-
-
-//@description Contains information about a user that added paid reactions
-//@sender_id Identifier of the user or chat that added the reactions; may be null for anonymous reactors that aren't the current user
-//@star_count Number of Telegram Stars added
-//@is_top True, if the reactor is one of the most active reactors; may be false if the reactor is the current user
-//@is_me True, if the paid reaction was added by the current user
-//@is_anonymous True, if the reactor is anonymous
-paidReactor sender_id:MessageSender star_count:int32 is_top:Bool is_me:Bool is_anonymous:Bool = PaidReactor;
-
-//@description Contains information about a forwarded message
-//@origin Origin of the forwarded message
-//@date Point in time (Unix timestamp) when the message was originally sent
-//@source For messages forwarded to the chat with the current user (Saved Messages), to the Replies bot chat, or to the channel's discussion group, information about the source message from which the message was forwarded last time; may be null for other forwards or if unknown
-//@public_service_announcement_type The type of public service announcement for the forwarded message
-messageForwardInfo origin:MessageOrigin date:int32 source:forwardSource public_service_announcement_type:string = MessageForwardInfo;
-
-//@description Contains information about a message created with importMessages
-//@sender_name Name of the original sender
-//@date Point in time (Unix timestamp) when the message was originally sent
-messageImportInfo sender_name:string date:int32 = MessageImportInfo;
-
-//@description Contains information about replies to a message
-//@reply_count Number of times the message was directly or indirectly replied
-//@recent_replier_ids Identifiers of at most 3 recent repliers to the message; available in channels with a discussion supergroup. The users and chats are expected to be inaccessible: only their photo and name will be available
-//@last_read_inbox_message_id Identifier of the last read incoming reply to the message
-//@last_read_outbox_message_id Identifier of the last read outgoing reply to the message
-//@last_message_id Identifier of the last reply to the message
-messageReplyInfo reply_count:int32 recent_replier_ids:vector<MessageSender> last_read_inbox_message_id:int53 last_read_outbox_message_id:int53 last_message_id:int53 = MessageReplyInfo;
-
-//@description Contains information about a reaction to a message
-//@type Type of the reaction
-//@total_count Number of times the reaction was added
-//@is_chosen True, if the reaction is chosen by the current user
-//@used_sender_id Identifier of the message sender used by the current user to add the reaction; may be null if unknown or the reaction isn't chosen
-//@recent_sender_ids Identifiers of at most 3 recent message senders, added the reaction; available in private, basic group and supergroup chats
-messageReaction type:ReactionType total_count:int32 is_chosen:Bool used_sender_id:MessageSender recent_sender_ids:vector<MessageSender> = MessageReaction;
-
-//@description Contains a list of reactions added to a message
-//@reactions List of added reactions
-//@are_tags True, if the reactions are tags and Telegram Premium users can filter messages by them
-//@paid_reactors Information about top users that added the paid reaction
-//@can_get_added_reactions True, if the list of added reactions is available using getMessageAddedReactions
-messageReactions reactions:vector<messageReaction> are_tags:Bool paid_reactors:vector<paidReactor> can_get_added_reactions:Bool = MessageReactions;
-
-//@description Contains information about interactions with a message
-//@view_count Number of times the message was viewed
-//@forward_count Number of times the message was forwarded
-//@reply_info Information about direct or indirect replies to the message; may be null. Currently, available only in channels with a discussion supergroup and discussion supergroups for messages, which are not replies itself
-//@reactions The list of reactions or tags added to the message; may be null
-messageInteractionInfo view_count:int32 forward_count:int32 reply_info:messageReplyInfo reactions:messageReactions = MessageInteractionInfo;
-
-//@description Contains information about an unread reaction to a message
-//@type Type of the reaction
-//@sender_id Identifier of the sender, added the reaction
-//@is_big True, if the reaction was added with a big animation
-unreadReaction type:ReactionType sender_id:MessageSender is_big:Bool = UnreadReaction;
-
-
-//@class MessageEffectType @description Describes type of emoji effect
-
-//@description An effect from an emoji reaction @select_animation Select animation for the effect in TGS format @effect_animation Effect animation for the effect in TGS format
-messageEffectTypeEmojiReaction select_animation:sticker effect_animation:sticker = MessageEffectType;
-
-//@description An effect from a premium sticker @sticker The premium sticker. The effect can be found at sticker.full_type.premium_animation
-messageEffectTypePremiumSticker sticker:sticker = MessageEffectType;
-
-
-//@description Contains information about an effect added to a message
-//@id Unique identifier of the effect
-//@static_icon Static icon for the effect in WEBP format; may be null if none
-//@emoji Emoji corresponding to the effect that can be used if static icon isn't available
-//@is_premium True, if Telegram Premium subscription is required to use the effect
-//@type Type of the effect
-messageEffect id:int64 static_icon:sticker emoji:string is_premium:Bool type:MessageEffectType = MessageEffect;
-
-
-//@class MessageSendingState @description Contains information about the sending state of the message
-
-//@description The message is being sent now, but has not yet been delivered to the server @sending_id Non-persistent message sending identifier, specified by the application
-messageSendingStatePending sending_id:int32 = MessageSendingState;
-
-//@description The message failed to be sent
-//@error The cause of the message sending failure
-//@can_retry True, if the message can be re-sent using resendMessages or readdQuickReplyShortcutMessages
-//@need_another_sender True, if the message can be re-sent only on behalf of a different sender
-//@need_another_reply_quote True, if the message can be re-sent only if another quote is chosen in the message that is replied by the given message
-//@need_drop_reply True, if the message can be re-sent only if the message to be replied is removed. This will be done automatically by resendMessages
-//@required_paid_message_star_count The number of Telegram Stars that must be paid to send the message; 0 if the current amount is correct
-//@retry_after Time left before the message can be re-sent, in seconds. No update is sent when this field changes
-messageSendingStateFailed error:error can_retry:Bool need_another_sender:Bool need_another_reply_quote:Bool need_drop_reply:Bool required_paid_message_star_count:int53 retry_after:double = MessageSendingState;
-
-
-//@description Describes manually or automatically chosen quote from another message
-//@text Text of the quote. Only Bold, Italic, Underline, Strikethrough, Spoiler, and CustomEmoji entities can be present in the text
-//@position Approximate quote position in the original message in UTF-16 code units as specified by the message sender
-//@is_manual True, if the quote was manually chosen by the message sender
-textQuote text:formattedText position:int32 is_manual:Bool = TextQuote;
-
-//@description Describes manually chosen quote from another message
-//@text Text of the quote; 0-getOption("message_reply_quote_length_max") characters. Only Bold, Italic, Underline, Strikethrough, Spoiler, and CustomEmoji entities are allowed to be kept and must be kept in the quote
-//@position Quote position in the original message in UTF-16 code units
-inputTextQuote text:formattedText position:int32 = InputTextQuote;
-
-
-//@class MessageReplyTo @description Contains information about the message or the story a message is replying to
-
-//@description Describes a message replied by a given message
-//@chat_id The identifier of the chat to which the message belongs; may be 0 if the replied message is in unknown chat
-//@message_id The identifier of the message; may be 0 if the replied message is in unknown chat
-//@quote Chosen quote from the replied message; may be null if none
-//@origin Information about origin of the message if the message was from another chat or topic; may be null for messages from the same chat
-//@origin_send_date Point in time (Unix timestamp) when the message was sent if the message was from another chat or topic; 0 for messages from the same chat
-//@content Media content of the message if the message was from another chat or topic; may be null for messages from the same chat and messages without media.
-//-Can be only one of the following types: messageAnimation, messageAudio, messageContact, messageDice, messageDocument, messageGame, messageGiveaway, messageGiveawayWinners,
-//-messageInvoice, messageLocation, messagePaidMedia, messagePhoto, messagePoll, messageSticker, messageStory, messageText (for link preview), messageVenue, messageVideo,
-//-messageVideoNote, or messageVoiceNote
-messageReplyToMessage chat_id:int53 message_id:int53 quote:textQuote origin:MessageOrigin origin_send_date:int32 content:MessageContent = MessageReplyTo;
-
-//@description Describes a story replied by a given message @story_sender_chat_id The identifier of the sender of the story @story_id The identifier of the story
-messageReplyToStory story_sender_chat_id:int53 story_id:int32 = MessageReplyTo;
-
-
-//@class InputMessageReplyTo @description Contains information about the message or the story to be replied
-
-//@description Describes a message to be replied in the same chat and forum topic
-//@message_id The identifier of the message to be replied in the same chat and forum topic. A message can be replied in the same chat and forum topic only if messageProperties.can_be_replied
-//@quote Quote from the message to be replied; pass null if none. Must always be null for replies in secret chats
-inputMessageReplyToMessage message_id:int53 quote:inputTextQuote = InputMessageReplyTo;
-
-//@description Describes a message to be replied that is from a different chat or a forum topic; not supported in secret chats
-//@chat_id The identifier of the chat to which the message to be replied belongs
-//@message_id The identifier of the message to be replied in the specified chat. A message can be replied in another chat or forum topic only if messageProperties.can_be_replied_in_another_chat
-//@quote Quote from the message to be replied; pass null if none
-inputMessageReplyToExternalMessage chat_id:int53 message_id:int53 quote:inputTextQuote = InputMessageReplyTo;
-
-//@description Describes a story to be replied
-//@story_sender_chat_id The identifier of the sender of the story. Currently, stories can be replied only in the sender's chat and channel stories can't be replied
-//@story_id The identifier of the story
-inputMessageReplyToStory story_sender_chat_id:int53 story_id:int32 = InputMessageReplyTo;
-
-
-//@description Describes a fact-check added to the message by an independent checker
-//@text Text of the fact-check
-//@country_code A two-letter ISO 3166-1 alpha-2 country code of the country for which the fact-check is shown
-factCheck text:formattedText country_code:string = FactCheck;
-
-
-//@description Describes a message
-//@id Message identifier; unique for the chat to which the message belongs
-//@sender_id Identifier of the sender of the message
-//@chat_id Chat identifier
-//@sending_state The sending state of the message; may be null if the message isn't being sent and didn't fail to be sent
-//@scheduling_state The scheduling state of the message; may be null if the message isn't scheduled
-//@is_outgoing True, if the message is outgoing
-//@is_pinned True, if the message is pinned
-//@is_from_offline True, if the message was sent because of a scheduled action by the message sender, for example, as away, or greeting service message
-//@can_be_saved True, if content of the message can be saved locally or copied using inputMessageForwarded or forwardMessages with copy options
-//@has_timestamped_media True, if media timestamp entities refers to a media in this message as opposed to a media in the replied message
-//@is_channel_post True, if the message is a channel post. All messages to channels are channel posts, all other messages are not channel posts
-//@is_topic_message True, if the message is a forum topic message
-//@contains_unread_mention True, if the message contains an unread mention for the current user
-//@date Point in time (Unix timestamp) when the message was sent; 0 for scheduled messages
-//@edit_date Point in time (Unix timestamp) when the message was last edited; 0 for scheduled messages
-//@forward_info Information about the initial message sender; may be null if none or unknown
-//@import_info Information about the initial message for messages created with importMessages; may be null if the message isn't imported
-//@interaction_info Information about interactions with the message; may be null if none
-//@unread_reactions Information about unread reactions added to the message
-//@fact_check Information about fact-check added to the message; may be null if none
-//@reply_to Information about the message or the story this message is replying to; may be null if none
-//@message_thread_id If non-zero, the identifier of the message thread the message belongs to; unique within the chat to which the message belongs
-//@saved_messages_topic_id Identifier of the Saved Messages topic for the message; 0 for messages not from Saved Messages
-//@self_destruct_type The message's self-destruct type; may be null if none
-//@self_destruct_in Time left before the message self-destruct timer expires, in seconds; 0 if self-destruction isn't scheduled yet
-//@auto_delete_in Time left before the message will be automatically deleted by message_auto_delete_time setting of the chat, in seconds; 0 if never
-//@via_bot_user_id If non-zero, the user identifier of the inline bot through which this message was sent
-//@sender_business_bot_user_id If non-zero, the user identifier of the business bot that sent this message
-//@sender_boost_count Number of times the sender of the message boosted the supergroup at the time the message was sent; 0 if none or unknown. For messages sent by the current user, supergroupFullInfo.my_boost_count must be used instead
-//@paid_message_star_count The number of Telegram Stars the sender paid to send the message
-//@author_signature For channel posts and anonymous group messages, optional author signature
-//@media_album_id Unique identifier of an album this message belongs to; 0 if none. Only audios, documents, photos and videos can be grouped together in albums
-//@effect_id Unique identifier of the effect added to the message; 0 if none
-//@has_sensitive_content True, if media content of the message must be hidden with 18+ spoiler
-//@restriction_reason If non-empty, contains a human-readable description of the reason why access to this message must be restricted
-//@content Content of the message
-//@reply_markup Reply markup for the message; may be null if none
-message id:int53 sender_id:MessageSender chat_id:int53 sending_state:MessageSendingState scheduling_state:MessageSchedulingState is_outgoing:Bool is_pinned:Bool is_from_offline:Bool can_be_saved:Bool has_timestamped_media:Bool is_channel_post:Bool is_topic_message:Bool contains_unread_mention:Bool date:int32 edit_date:int32 forward_info:messageForwardInfo import_info:messageImportInfo interaction_info:messageInteractionInfo unread_reactions:vector<unreadReaction> fact_check:factCheck reply_to:MessageReplyTo message_thread_id:int53 saved_messages_topic_id:int53 self_destruct_type:MessageSelfDestructType self_destruct_in:double auto_delete_in:double via_bot_user_id:int53 sender_business_bot_user_id:int53 sender_boost_count:int32 paid_message_star_count:int53 author_signature:string media_album_id:int64 effect_id:int64 has_sensitive_content:Bool restriction_reason:string content:MessageContent reply_markup:ReplyMarkup = Message;
-
-
-//@description Contains a list of messages @total_count Approximate total number of messages found @messages List of messages; messages may be null
-messages total_count:int32 messages:vector<message> = Messages;
-
-//@description Contains a list of messages found by a search @total_count Approximate total number of messages found; -1 if unknown @messages List of messages @next_offset The offset for the next request. If empty, then there are no more results
-foundMessages total_count:int32 messages:vector<message> next_offset:string = FoundMessages;
-
-//@description Contains a list of messages found by a search in a given chat @total_count Approximate total number of messages found; -1 if unknown @messages List of messages @next_from_message_id The offset for the next request. If 0, there are no more results
-foundChatMessages total_count:int32 messages:vector<message> next_from_message_id:int53 = FoundChatMessages;
-
-//@description Contains information about a message in a specific position @position 0-based message position in the full list of suitable messages @message_id Message identifier @date Point in time (Unix timestamp) when the message was sent
-messagePosition position:int32 message_id:int53 date:int32 = MessagePosition;
-
-//@description Contains a list of message positions @total_count Total number of messages found @positions List of message positions
-messagePositions total_count:int32 positions:vector<messagePosition> = MessagePositions;
-
-//@description Contains information about found messages sent on a specific day @total_count Total number of found messages sent on the day @message First message sent on the day
-messageCalendarDay total_count:int32 message:message = MessageCalendarDay;
-
-//@description Contains information about found messages, split by days according to the option "utc_time_offset" @total_count Total number of found messages @days Information about messages sent
-messageCalendar total_count:int32 days:vector<messageCalendarDay> = MessageCalendar;
-
-
-//@description Describes a message from a business account as received by a bot @message The message @reply_to_message Message that is replied by the message in the same chat; may be null if none
-businessMessage message:message reply_to_message:message = BusinessMessage;
-
-//@description Contains a list of messages from a business account as received by a bot @messages List of business messages
-businessMessages messages:vector<businessMessage> = BusinessMessages;
-
-
-//@class MessageSource @description Describes source of a message
-
-//@description The message is from a chat history
-messageSourceChatHistory = MessageSource;
-
-//@description The message is from a message thread history
-messageSourceMessageThreadHistory = MessageSource;
-
-//@description The message is from a forum topic history
-messageSourceForumTopicHistory = MessageSource;
-
-//@description The message is from chat, message thread or forum topic history preview
-messageSourceHistoryPreview = MessageSource;
-
-//@description The message is from a chat list or a forum topic list
-messageSourceChatList = MessageSource;
-
-//@description The message is from search results, including file downloads, local file list, outgoing document messages, calendar
-messageSourceSearch = MessageSource;
-
-//@description The message is from a chat event log
-messageSourceChatEventLog = MessageSource;
-
-//@description The message is from a notification
-messageSourceNotification = MessageSource;
-
-//@description The message was screenshotted; the source must be used only if the message content was visible during the screenshot
-messageSourceScreenshot = MessageSource;
-
-//@description The message is from some other source
-messageSourceOther = MessageSource;
-
-
-//@description Information about the sponsor of a message
-//@url URL of the sponsor to be opened when the message is clicked
-//@photo Photo of the sponsor; may be null if must not be shown
-//@info Additional optional information about the sponsor to be shown along with the message
-messageSponsor url:string photo:photo info:string = MessageSponsor;
-
-//@description Describes a sponsored message
-//@message_id Message identifier; unique for the chat to which the sponsored message belongs among both ordinary and sponsored messages
-//@is_recommended True, if the message needs to be labeled as "recommended" instead of "sponsored"
-//@can_be_reported True, if the message can be reported to Telegram moderators through reportChatSponsoredMessage
-//@content Content of the message. Currently, can be only of the types messageText, messageAnimation, messagePhoto, or messageVideo. Video messages can be viewed fullscreen
-//@sponsor Information about the sponsor of the message
-//@title Title of the sponsored message
-//@button_text Text for the message action button
-//@accent_color_id Identifier of the accent color for title, button text and message background
-//@background_custom_emoji_id Identifier of a custom emoji to be shown on the message background; 0 if none
-//@additional_info If non-empty, additional information about the sponsored message to be shown along with the message
-sponsoredMessage message_id:int53 is_recommended:Bool can_be_reported:Bool content:MessageContent sponsor:messageSponsor title:string button_text:string accent_color_id:int32 background_custom_emoji_id:int64 additional_info:string = SponsoredMessage;
-
-//@description Contains a list of sponsored messages @messages List of sponsored messages @messages_between The minimum number of messages between shown sponsored messages, or 0 if only one sponsored message must be shown after all ordinary messages
-sponsoredMessages messages:vector<sponsoredMessage> messages_between:int32 = SponsoredMessages;
-
-//@description Describes a sponsored chat
-//@unique_id Unique identifier of this result
-//@chat_id Chat identifier
-//@sponsor_info Additional optional information about the sponsor to be shown along with the chat
-//@additional_info If non-empty, additional information about the sponsored chat to be shown along with the chat
-sponsoredChat unique_id:int53 chat_id:int53 sponsor_info:string additional_info:string = SponsoredChat;
-
-//@description Contains a list of sponsored chats @chats List of sponsored chats
-sponsoredChats chats:vector<sponsoredChat> = SponsoredChats;
-
-
-//@description Describes an option to report an entity to Telegram @id Unique identifier of the option @text Text of the option
-reportOption id:bytes text:string = ReportOption;
-
-
-//@class ReportSponsoredResult @description Describes result of sponsored message or chat report
-
-//@description The message was reported successfully
-reportSponsoredResultOk = ReportSponsoredResult;
-
-//@description The sponsored message is too old or not found
-reportSponsoredResultFailed = ReportSponsoredResult;
-
-//@description The user must choose an option to report the message and repeat request with the chosen option @title Title for the option choice @options List of available options
-reportSponsoredResultOptionRequired title:string options:vector<reportOption> = ReportSponsoredResult;
-
-//@description Sponsored messages were hidden for the user in all chats
-reportSponsoredResultAdsHidden = ReportSponsoredResult;
-
-//@description The user asked to hide sponsored messages, but Telegram Premium is required for this
-reportSponsoredResultPremiumRequired = ReportSponsoredResult;
-
-
-//@description Describes a file added to file download list
-//@file_id File identifier
-//@message The message with the file
-//@add_date Point in time (Unix timestamp) when the file was added to the download list
-//@complete_date Point in time (Unix timestamp) when the file downloading was completed; 0 if the file downloading isn't completed
-//@is_paused True, if downloading of the file is paused
-fileDownload file_id:int32 message:message add_date:int32 complete_date:int32 is_paused:Bool = FileDownload;
-
-//@description Contains number of being downloaded and recently downloaded files found
-//@active_count Number of active file downloads found, including paused
-//@paused_count Number of paused file downloads found
-//@completed_count Number of completed file downloads found
-downloadedFileCounts active_count:int32 paused_count:int32 completed_count:int32 = DownloadedFileCounts;
-
-//@description Contains a list of downloaded files, found by a search
-//@total_counts Total number of suitable files, ignoring offset
-//@files The list of files
-//@next_offset The offset for the next request. If empty, then there are no more results
-foundFileDownloads total_counts:downloadedFileCounts files:vector<fileDownload> next_offset:string = FoundFileDownloads;
-
-
-//@class NotificationSettingsScope @description Describes the types of chats to which notification settings are relevant
-
-//@description Notification settings applied to all private and secret chats when the corresponding chat setting has a default value
-notificationSettingsScopePrivateChats = NotificationSettingsScope;
-
-//@description Notification settings applied to all basic group and supergroup chats when the corresponding chat setting has a default value
-notificationSettingsScopeGroupChats = NotificationSettingsScope;
-
-//@description Notification settings applied to all channel chats when the corresponding chat setting has a default value
-notificationSettingsScopeChannelChats = NotificationSettingsScope;
-
-
-//@description Contains information about notification settings for a chat or a forum topic
-//@use_default_mute_for If true, the value for the relevant type of chat or the forum chat is used instead of mute_for
-//@mute_for Time left before notifications will be unmuted, in seconds
-//@use_default_sound If true, the value for the relevant type of chat or the forum chat is used instead of sound_id
-//@sound_id Identifier of the notification sound to be played for messages; 0 if sound is disabled
-//@use_default_show_preview If true, the value for the relevant type of chat or the forum chat is used instead of show_preview
-//@show_preview True, if message content must be displayed in notifications
-//@use_default_mute_stories If true, the value for the relevant type of chat is used instead of mute_stories
-//@mute_stories True, if story notifications are disabled for the chat
-//@use_default_story_sound If true, the value for the relevant type of chat is used instead of story_sound_id
-//@story_sound_id Identifier of the notification sound to be played for stories; 0 if sound is disabled
-//@use_default_show_story_sender If true, the value for the relevant type of chat is used instead of show_story_sender
-//@show_story_sender True, if the sender of stories must be displayed in notifications
-//@use_default_disable_pinned_message_notifications If true, the value for the relevant type of chat or the forum chat is used instead of disable_pinned_message_notifications
-//@disable_pinned_message_notifications If true, notifications for incoming pinned messages will be created as for an ordinary unread message
-//@use_default_disable_mention_notifications If true, the value for the relevant type of chat or the forum chat is used instead of disable_mention_notifications
-//@disable_mention_notifications If true, notifications for messages with mentions will be created as for an ordinary unread message
-chatNotificationSettings use_default_mute_for:Bool mute_for:int32 use_default_sound:Bool sound_id:int64 use_default_show_preview:Bool show_preview:Bool use_default_mute_stories:Bool mute_stories:Bool use_default_story_sound:Bool story_sound_id:int64 use_default_show_story_sender:Bool show_story_sender:Bool use_default_disable_pinned_message_notifications:Bool disable_pinned_message_notifications:Bool use_default_disable_mention_notifications:Bool disable_mention_notifications:Bool = ChatNotificationSettings;
-
-//@description Contains information about notification settings for several chats
-//@mute_for Time left before notifications will be unmuted, in seconds
-//@sound_id Identifier of the notification sound to be played; 0 if sound is disabled
-//@show_preview True, if message content must be displayed in notifications
-//@use_default_mute_stories If true, story notifications are received only for the first 5 chats from topChatCategoryUsers regardless of the value of mute_stories
-//@mute_stories True, if story notifications are disabled
-//@story_sound_id Identifier of the notification sound to be played for stories; 0 if sound is disabled
-//@show_story_sender True, if the sender of stories must be displayed in notifications
-//@disable_pinned_message_notifications True, if notifications for incoming pinned messages will be created as for an ordinary unread message
-//@disable_mention_notifications True, if notifications for messages with mentions will be created as for an ordinary unread message
-scopeNotificationSettings mute_for:int32 sound_id:int64 show_preview:Bool use_default_mute_stories:Bool mute_stories:Bool story_sound_id:int64 show_story_sender:Bool disable_pinned_message_notifications:Bool disable_mention_notifications:Bool = ScopeNotificationSettings;
-
-
-//@class ReactionNotificationSource @description Describes sources of reactions for which notifications will be shown
-
-//@description Notifications for reactions are disabled
-reactionNotificationSourceNone = ReactionNotificationSource;
-
-//@description Notifications for reactions are shown only for reactions from contacts
-reactionNotificationSourceContacts = ReactionNotificationSource;
-
-//@description Notifications for reactions are shown for all reactions
-reactionNotificationSourceAll = ReactionNotificationSource;
-
-
-//@description Contains information about notification settings for reactions
-//@message_reaction_source Source of message reactions for which notifications are shown
-//@story_reaction_source Source of story reactions for which notifications are shown
-//@sound_id Identifier of the notification sound to be played; 0 if sound is disabled
-//@show_preview True, if reaction sender and emoji must be displayed in notifications
-reactionNotificationSettings message_reaction_source:ReactionNotificationSource story_reaction_source:ReactionNotificationSource sound_id:int64 show_preview:Bool = ReactionNotificationSettings;
-
-
-//@description Contains information about a message draft
-//@reply_to Information about the message to be replied; must be of the type inputMessageReplyToMessage; may be null if none
-//@date Point in time (Unix timestamp) when the draft was created
-//@input_message_text Content of the message draft; must be of the type inputMessageText, inputMessageVideoNote, or inputMessageVoiceNote
-//@effect_id Identifier of the effect to apply to the message when it is sent; 0 if none
-draftMessage reply_to:InputMessageReplyTo date:int32 input_message_text:InputMessageContent effect_id:int64 = DraftMessage;
-
-
-//@class ChatType @description Describes the type of chat
-
-//@description An ordinary chat with a user @user_id User identifier
-chatTypePrivate user_id:int53 = ChatType;
-
-//@description A basic group (a chat with 0-200 other users) @basic_group_id Basic group identifier
-chatTypeBasicGroup basic_group_id:int53 = ChatType;
-
-//@description A supergroup or channel (with unlimited members) @supergroup_id Supergroup or channel identifier @is_channel True, if the supergroup is a channel
-chatTypeSupergroup supergroup_id:int53 is_channel:Bool = ChatType;
-
-//@description A secret chat with a user @secret_chat_id Secret chat identifier @user_id User identifier of the other user in the secret chat
-chatTypeSecret secret_chat_id:int32 user_id:int53 = ChatType;
-
-
-//@description Represents an icon for a chat folder @name The chosen icon name for short folder representation; one of "All", "Unread", "Unmuted", "Bots", "Channels", "Groups", "Private", "Custom", "Setup", "Cat", "Crown",
-//-"Favorite", "Flower", "Game", "Home", "Love", "Mask", "Party", "Sport", "Study", "Trade", "Travel", "Work", "Airplane", "Book", "Light", "Like", "Money", "Note", "Palette"
-chatFolderIcon name:string = ChatFolderIcon;
-
-//@description Describes name of a chat folder
-//@text The text of the chat folder name; 1-12 characters without line feeds. May contain only CustomEmoji entities
-//@animate_custom_emoji True, if custom emoji in the name must be animated
-chatFolderName text:formattedText animate_custom_emoji:Bool = ChatFolderName;
-
-//@description Represents a folder for user chats
-//@name The name of the folder
-//@icon The chosen icon for the chat folder; may be null. If null, use getChatFolderDefaultIconName to get default icon name for the folder
-//@color_id The identifier of the chosen color for the chat folder icon; from -1 to 6. If -1, then color is disabled. Can't be changed if folder tags are disabled or the current user doesn't have Telegram Premium subscription
-//@is_shareable True, if at least one link has been created for the folder
-//@pinned_chat_ids The chat identifiers of pinned chats in the folder. There can be up to getOption("chat_folder_chosen_chat_count_max") pinned and always included non-secret chats and the same number of secret chats, but the limit can be increased with Telegram Premium
-//@included_chat_ids The chat identifiers of always included chats in the folder. There can be up to getOption("chat_folder_chosen_chat_count_max") pinned and always included non-secret chats and the same number of secret chats, but the limit can be increased with Telegram Premium
-//@excluded_chat_ids The chat identifiers of always excluded chats in the folder. There can be up to getOption("chat_folder_chosen_chat_count_max") always excluded non-secret chats and the same number of secret chats, but the limit can be increased with Telegram Premium
-//@exclude_muted True, if muted chats need to be excluded
-//@exclude_read True, if read chats need to be excluded
-//@exclude_archived True, if archived chats need to be excluded
-//@include_contacts True, if contacts need to be included
-//@include_non_contacts True, if non-contact users need to be included
-//@include_bots True, if bots need to be included
-//@include_groups True, if basic groups and supergroups need to be included
-//@include_channels True, if channels need to be included
-chatFolder name:chatFolderName icon:chatFolderIcon color_id:int32 is_shareable:Bool pinned_chat_ids:vector<int53> included_chat_ids:vector<int53> excluded_chat_ids:vector<int53> exclude_muted:Bool exclude_read:Bool exclude_archived:Bool include_contacts:Bool include_non_contacts:Bool include_bots:Bool include_groups:Bool include_channels:Bool = ChatFolder;
-
-//@description Contains basic information about a chat folder
-//@id Unique chat folder identifier
-//@name The name of the folder
-//@icon The chosen or default icon for the chat folder
-//@color_id The identifier of the chosen color for the chat folder icon; from -1 to 6. If -1, then color is disabled
-//@is_shareable True, if at least one link has been created for the folder
-//@has_my_invite_links True, if the chat folder has invite links created by the current user
-chatFolderInfo id:int32 name:chatFolderName icon:chatFolderIcon color_id:int32 is_shareable:Bool has_my_invite_links:Bool = ChatFolderInfo;
-
-//@description Contains a chat folder invite link
-//@invite_link The chat folder invite link
-//@name Name of the link
-//@chat_ids Identifiers of chats, included in the link
-chatFolderInviteLink invite_link:string name:string chat_ids:vector<int53> = ChatFolderInviteLink;
-
-//@description Represents a list of chat folder invite links @invite_links List of the invite links
-chatFolderInviteLinks invite_links:vector<chatFolderInviteLink> = ChatFolderInviteLinks;
-
-//@description Contains information about an invite link to a chat folder
-//@chat_folder_info Basic information about the chat folder; chat folder identifier will be 0 if the user didn't have the chat folder yet
-//@missing_chat_ids Identifiers of the chats from the link, which aren't added to the folder yet
-//@added_chat_ids Identifiers of the chats from the link, which are added to the folder already
-chatFolderInviteLinkInfo chat_folder_info:chatFolderInfo missing_chat_ids:vector<int53> added_chat_ids:vector<int53> = ChatFolderInviteLinkInfo;
-
-//@description Describes a recommended chat folder @folder The chat folder @param_description Chat folder description
-recommendedChatFolder folder:chatFolder description:string = RecommendedChatFolder;
-
-//@description Contains a list of recommended chat folders @chat_folders List of recommended chat folders
-recommendedChatFolders chat_folders:vector<recommendedChatFolder> = RecommendedChatFolders;
-
-//@description Contains settings for automatic moving of chats to and from the Archive chat lists
-//@archive_and_mute_new_chats_from_unknown_users True, if new chats from non-contacts will be automatically archived and muted. Can be set to true only if the option "can_archive_and_mute_new_chats_from_unknown_users" is true
-//@keep_unmuted_chats_archived True, if unmuted chats will be kept in the Archive chat list when they get a new message
-//@keep_chats_from_folders_archived True, if unmuted chats, that are always included or pinned in a folder, will be kept in the Archive chat list when they get a new message. Ignored if keep_unmuted_chats_archived == true
-archiveChatListSettings archive_and_mute_new_chats_from_unknown_users:Bool keep_unmuted_chats_archived:Bool keep_chats_from_folders_archived:Bool = ArchiveChatListSettings;
-
-
-//@class ChatList @description Describes a list of chats
-
-//@description A main list of chats
-chatListMain = ChatList;
-
-//@description A list of chats usually located at the top of the main chat list. Unmuted chats are automatically moved from the Archive to the Main chat list when a new message arrives
-chatListArchive = ChatList;
-
-//@description A list of chats added to a chat folder @chat_folder_id Chat folder identifier
-chatListFolder chat_folder_id:int32 = ChatList;
-
-//@description Contains a list of chat lists @chat_lists List of chat lists
-chatLists chat_lists:vector<ChatList> = ChatLists;
-
-
-//@class ChatSource @description Describes a reason why an external chat is shown in a chat list
-
-//@description The chat is sponsored by the user's MTProxy server
-chatSourceMtprotoProxy = ChatSource;
-
-//@description The chat contains a public service announcement @type The type of the announcement @text The text of the announcement
-chatSourcePublicServiceAnnouncement type:string text:string = ChatSource;
-
-
-//@description Describes a position of a chat in a chat list
-//@list The chat list
-//@order A parameter used to determine order of the chat in the chat list. Chats must be sorted by the pair (order, chat.id) in descending order
-//@is_pinned True, if the chat is pinned in the chat list
-//@source Source of the chat in the chat list; may be null
-chatPosition list:ChatList order:int64 is_pinned:Bool source:ChatSource = ChatPosition;
-
-
-//@class ChatAvailableReactions @description Describes reactions available in the chat
-
-//@description All reactions are available in the chat, excluding the paid reaction and custom reactions in channel chats
-//@max_reaction_count The maximum allowed number of reactions per message; 1-11
-chatAvailableReactionsAll max_reaction_count:int32 = ChatAvailableReactions;
-
-//@description Only specific reactions are available in the chat @reactions The list of reactions @max_reaction_count The maximum allowed number of reactions per message; 1-11
-chatAvailableReactionsSome reactions:vector<ReactionType> max_reaction_count:int32 = ChatAvailableReactions;
-
-
-//@description Represents a tag used in Saved Messages or a Saved Messages topic
-//@tag The tag
-//@label Label of the tag; 0-12 characters. Always empty if the tag is returned for a Saved Messages topic
-//@count Number of times the tag was used; may be 0 if the tag has non-empty label
-savedMessagesTag tag:ReactionType label:string count:int32 = SavedMessagesTag;
-
-//@description Contains a list of tags used in Saved Messages @tags List of tags
-savedMessagesTags tags:vector<savedMessagesTag> = SavedMessagesTags;
-
-
-//@description Contains information about a business bot that manages the chat
-//@bot_user_id User identifier of the bot
-//@manage_url URL to be opened to manage the bot
-//@is_bot_paused True, if the bot is paused. Use toggleBusinessConnectedBotChatIsPaused to change the value of the field
-//@can_bot_reply True, if the bot can reply
-businessBotManageBar bot_user_id:int53 manage_url:string is_bot_paused:Bool can_bot_reply:Bool = BusinessBotManageBar;
-
-
-//@description Describes a video chat
-//@group_call_id Group call identifier of an active video chat; 0 if none. Full information about the video chat can be received through the method getGroupCall
-//@has_participants True, if the video chat has participants
-//@default_participant_id Default group call participant identifier to join the video chat; may be null
-videoChat group_call_id:int32 has_participants:Bool default_participant_id:MessageSender = VideoChat;
-
-
-//@description A chat. (Can be a private chat, basic group, supergroup, or secret chat)
-//@id Chat unique identifier
-//@type Type of the chat
-//@title Chat title
-//@photo Chat photo; may be null
-//@accent_color_id Identifier of the accent color for message sender name, and backgrounds of chat photo, reply header, and link preview
-//@background_custom_emoji_id Identifier of a custom emoji to be shown on the reply header and link preview background for messages sent by the chat; 0 if none
-//@profile_accent_color_id Identifier of the profile accent color for the chat's profile; -1 if none
-//@profile_background_custom_emoji_id Identifier of a custom emoji to be shown on the background of the chat's profile; 0 if none
-//@permissions Actions that non-administrator chat members are allowed to take in the chat
-//@last_message Last message in the chat; may be null if none or unknown
-//@positions Positions of the chat in chat lists
-//@chat_lists Chat lists to which the chat belongs. A chat can have a non-zero position in a chat list even it doesn't belong to the chat list and have no position in a chat list even it belongs to the chat list
-//@message_sender_id Identifier of a user or chat that is selected to send messages in the chat; may be null if the user can't change message sender
-//@block_list Block list to which the chat is added; may be null if none
-//@has_protected_content True, if chat content can't be saved locally, forwarded, or copied
-//@is_translatable True, if translation of all messages in the chat must be suggested to the user
-//@is_marked_as_unread True, if the chat is marked as unread
-//@view_as_topics True, if the chat is a forum supergroup that must be shown in the "View as topics" mode, or Saved Messages chat that must be shown in the "View as chats"
-//@has_scheduled_messages True, if the chat has scheduled messages
-//@can_be_deleted_only_for_self True, if the chat messages can be deleted only for the current user while other users will continue to see the messages
-//@can_be_deleted_for_all_users True, if the chat messages can be deleted for all users
-//@can_be_reported True, if the chat can be reported to Telegram moderators through reportChat or reportChatPhoto
-//@default_disable_notification Default value of the disable_notification parameter, used when a message is sent to the chat
-//@unread_count Number of unread messages in the chat
-//@last_read_inbox_message_id Identifier of the last read incoming message
-//@last_read_outbox_message_id Identifier of the last read outgoing message
-//@unread_mention_count Number of unread messages with a mention/reply in the chat
-//@unread_reaction_count Number of messages with unread reactions in the chat
-//@notification_settings Notification settings for the chat
-//@available_reactions Types of reaction, available in the chat
-//@message_auto_delete_time Current message auto-delete or self-destruct timer setting for the chat, in seconds; 0 if disabled. Self-destruct timer in secret chats starts after the message or its content is viewed. Auto-delete timer in other chats starts from the send date
-//@emoji_status Emoji status to be shown along with chat title; may be null
-//@background Background set for the chat; may be null if none
-//@theme_name If non-empty, name of a theme, set for the chat
-//@action_bar Information about actions which must be possible to do through the chat action bar; may be null if none
-//@business_bot_manage_bar Information about bar for managing a business bot in the chat; may be null if none
-//@video_chat Information about video chat of the chat
-//@pending_join_requests Information about pending join requests; may be null if none
-//@reply_markup_message_id Identifier of the message from which reply markup needs to be used; 0 if there is no default custom reply markup in the chat
-//@draft_message A draft of a message in the chat; may be null if none
-//@client_data Application-specific data associated with the chat. (For example, the chat scroll position or local chat notification settings can be stored here.) Persistent if the message database is used
-chat id:int53 type:ChatType title:string photo:chatPhotoInfo accent_color_id:int32 background_custom_emoji_id:int64 profile_accent_color_id:int32 profile_background_custom_emoji_id:int64 permissions:chatPermissions last_message:message positions:vector<chatPosition> chat_lists:vector<ChatList> message_sender_id:MessageSender block_list:BlockList has_protected_content:Bool is_translatable:Bool is_marked_as_unread:Bool view_as_topics:Bool has_scheduled_messages:Bool can_be_deleted_only_for_self:Bool can_be_deleted_for_all_users:Bool can_be_reported:Bool default_disable_notification:Bool unread_count:int32 last_read_inbox_message_id:int53 last_read_outbox_message_id:int53 unread_mention_count:int32 unread_reaction_count:int32 notification_settings:chatNotificationSettings available_reactions:ChatAvailableReactions message_auto_delete_time:int32 emoji_status:emojiStatus background:chatBackground theme_name:string action_bar:ChatActionBar business_bot_manage_bar:businessBotManageBar video_chat:videoChat pending_join_requests:chatJoinRequestsInfo reply_markup_message_id:int53 draft_message:draftMessage client_data:string = Chat;
-
-//@description Represents a list of chats @total_count Approximate total number of chats found @chat_ids List of chat identifiers
-chats total_count:int32 chat_ids:vector<int53> = Chats;
-
-
-//@description Contains information about a user that has failed to be added to a chat
-//@user_id User identifier
-//@premium_would_allow_invite True, if subscription to Telegram Premium would have allowed to add the user to the chat
-//@premium_required_to_send_messages True, if subscription to Telegram Premium is required to send the user chat invite link
-failedToAddMember user_id:int53 premium_would_allow_invite:Bool premium_required_to_send_messages:Bool = FailedToAddMember;
-
-//@description Represents a list of users that has failed to be added to a chat @failed_to_add_members Information about users that weren't added to the chat
-failedToAddMembers failed_to_add_members:vector<failedToAddMember> = FailedToAddMembers;
-
-
-//@description Contains information about a newly created basic group chat @chat_id Chat identifier @failed_to_add_members Information about failed to add members
-createdBasicGroupChat chat_id:int53 failed_to_add_members:failedToAddMembers = CreatedBasicGroupChat;
-
-
-//@class PublicChatType @description Describes type of public chat
-
-//@description The chat is public, because it has an active username
-publicChatTypeHasUsername = PublicChatType;
-
-//@description The chat is public, because it is a location-based supergroup
-publicChatTypeIsLocationBased = PublicChatType;
-
-
-//@description Contains basic information about another user that started a chat with the current user
-//@registration_month Month when the user was registered in Telegram; 0-12; may be 0 if unknown
-//@registration_year Year when the user was registered in Telegram; 0-9999; may be 0 if unknown
-//@phone_number_country_code A two-letter ISO 3166-1 alpha-2 country code based on the phone number of the user; may be empty if unknown
-//@last_name_change_date Point in time (Unix timestamp) when the user changed name last time; 0 if unknown
-//@last_photo_change_date Point in time (Unix timestamp) when the user changed photo last time; 0 if unknown
-accountInfo registration_month:int32 registration_year:int32 phone_number_country_code:string last_name_change_date:int32 last_photo_change_date:int32 = AccountInfo;
-
-
-//@class ChatActionBar @description Describes actions which must be possible to do through a chat action bar
-
-//@description The chat can be reported as spam using the method reportChat with an empty option_id and message_ids. If the chat is a private chat with a user with an emoji status, then a notice about emoji status usage must be shown
-//@can_unarchive If true, the chat was automatically archived and can be moved back to the main chat list using addChatToList simultaneously with setting chat notification settings to default using setChatNotificationSettings
-chatActionBarReportSpam can_unarchive:Bool = ChatActionBar;
-
-//@description The chat is a recently created group chat to which new members can be invited
-chatActionBarInviteMembers = ChatActionBar;
-
-//@description The chat is a private or secret chat, which can be reported using the method reportChat, or the other user can be blocked using the method setMessageSenderBlockList,
-//-or the other user can be added to the contact list using the method addContact. If the chat is a private chat with a user with an emoji status, then a notice about emoji status usage must be shown
-//@can_unarchive If true, the chat was automatically archived and can be moved back to the main chat list using addChatToList simultaneously with setting chat notification settings to default using setChatNotificationSettings
-//@account_info Basic information about the other user in the chat; may be null if unknown
-chatActionBarReportAddBlock can_unarchive:Bool account_info:accountInfo = ChatActionBar;
-
-//@description The chat is a private or secret chat and the other user can be added to the contact list using the method addContact
-chatActionBarAddContact = ChatActionBar;
-
-//@description The chat is a private or secret chat with a mutual contact and the user's phone number can be shared with the other user using the method sharePhoneNumber
-chatActionBarSharePhoneNumber = ChatActionBar;
-
-//@description The chat is a private chat with an administrator of a chat to which the user sent join request
-//@title Title of the chat to which the join request was sent
-//@is_channel True, if the join request was sent to a channel chat
-//@request_date Point in time (Unix timestamp) when the join request was sent
-chatActionBarJoinRequest title:string is_channel:Bool request_date:int32 = ChatActionBar;
-
-
-//@class KeyboardButtonType @description Describes a keyboard button type
-
-//@description A simple button, with text that must be sent when the button is pressed
-keyboardButtonTypeText = KeyboardButtonType;
-
-//@description A button that sends the user's phone number when pressed; available only in private chats
-keyboardButtonTypeRequestPhoneNumber = KeyboardButtonType;
-
-//@description A button that sends the user's location when pressed; available only in private chats
-keyboardButtonTypeRequestLocation = KeyboardButtonType;
-
-//@description A button that allows the user to create and send a poll when pressed; available only in private chats @force_regular If true, only regular polls must be allowed to create @force_quiz If true, only polls in quiz mode must be allowed to create
-keyboardButtonTypeRequestPoll force_regular:Bool force_quiz:Bool = KeyboardButtonType;
-
-//@description A button that requests users to be shared by the current user; available only in private chats. Use the method shareUsersWithBot to complete the request
-//@id Unique button identifier
-//@restrict_user_is_bot True, if the shared users must or must not be bots
-//@user_is_bot True, if the shared users must be bots; otherwise, the shared users must not be bots. Ignored if restrict_user_is_bot is false
-//@restrict_user_is_premium True, if the shared users must or must not be Telegram Premium users
-//@user_is_premium True, if the shared users must be Telegram Premium users; otherwise, the shared users must not be Telegram Premium users. Ignored if restrict_user_is_premium is false
-//@max_quantity The maximum number of users to share
-//@request_name Pass true to request name of the users; bots only
-//@request_username Pass true to request username of the users; bots only
-//@request_photo Pass true to request photo of the users; bots only
-keyboardButtonTypeRequestUsers id:int32 restrict_user_is_bot:Bool user_is_bot:Bool restrict_user_is_premium:Bool user_is_premium:Bool max_quantity:int32 request_name:Bool request_username:Bool request_photo:Bool = KeyboardButtonType;
-
-//@description A button that requests a chat to be shared by the current user; available only in private chats. Use the method shareChatWithBot to complete the request
-//@id Unique button identifier
-//@chat_is_channel True, if the chat must be a channel; otherwise, a basic group or a supergroup chat is shared
-//@restrict_chat_is_forum True, if the chat must or must not be a forum supergroup
-//@chat_is_forum True, if the chat must be a forum supergroup; otherwise, the chat must not be a forum supergroup. Ignored if restrict_chat_is_forum is false
-//@restrict_chat_has_username True, if the chat must or must not have a username
-//@chat_has_username True, if the chat must have a username; otherwise, the chat must not have a username. Ignored if restrict_chat_has_username is false
-//@chat_is_created True, if the chat must be created by the current user
-//@user_administrator_rights Expected user administrator rights in the chat; may be null if they aren't restricted
-//@bot_administrator_rights Expected bot administrator rights in the chat; may be null if they aren't restricted
-//@bot_is_member True, if the bot must be a member of the chat; for basic group and supergroup chats only
-//@request_title Pass true to request title of the chat; bots only
-//@request_username Pass true to request username of the chat; bots only
-//@request_photo Pass true to request photo of the chat; bots only
-keyboardButtonTypeRequestChat id:int32 chat_is_channel:Bool restrict_chat_is_forum:Bool chat_is_forum:Bool restrict_chat_has_username:Bool chat_has_username:Bool chat_is_created:Bool user_administrator_rights:chatAdministratorRights bot_administrator_rights:chatAdministratorRights bot_is_member:Bool request_title:Bool request_username:Bool request_photo:Bool = KeyboardButtonType;
-
-//@description A button that opens a Web App by calling getWebAppUrl @url An HTTP URL to pass to getWebAppUrl
-keyboardButtonTypeWebApp url:string = KeyboardButtonType;
-
-
-//@description Represents a single button in a bot keyboard @text Text of the button @type Type of the button
-keyboardButton text:string type:KeyboardButtonType = KeyboardButton;
-
-
-//@class InlineKeyboardButtonType @description Describes the type of inline keyboard button
-
-//@description A button that opens a specified URL @url HTTP or tg:// URL to open. If the link is of the type internalLinkTypeWebApp, then the button must be marked as a Web App button
-inlineKeyboardButtonTypeUrl url:string = InlineKeyboardButtonType;
-
-//@description A button that opens a specified URL and automatically authorize the current user by calling getLoginUrlInfo @url An HTTP URL to pass to getLoginUrlInfo @id Unique button identifier @forward_text If non-empty, new text of the button in forwarded messages
-inlineKeyboardButtonTypeLoginUrl url:string id:int53 forward_text:string = InlineKeyboardButtonType;
-
-//@description A button that opens a Web App by calling openWebApp @url An HTTP URL to pass to openWebApp
-inlineKeyboardButtonTypeWebApp url:string = InlineKeyboardButtonType;
-
-//@description A button that sends a callback query to a bot @data Data to be sent to the bot via a callback query
-inlineKeyboardButtonTypeCallback data:bytes = InlineKeyboardButtonType;
-
-//@description A button that asks for the 2-step verification password of the current user and then sends a callback query to a bot @data Data to be sent to the bot via a callback query
-inlineKeyboardButtonTypeCallbackWithPassword data:bytes = InlineKeyboardButtonType;
-
-//@description A button with a game that sends a callback query to a bot. This button must be in the first column and row of the keyboard and can be attached only to a message with content of the type messageGame
-inlineKeyboardButtonTypeCallbackGame = InlineKeyboardButtonType;
-
-//@description A button that forces an inline query to the bot to be inserted in the input field @query Inline query to be sent to the bot @target_chat Target chat from which to send the inline query
-inlineKeyboardButtonTypeSwitchInline query:string target_chat:TargetChat = InlineKeyboardButtonType;
-
-//@description A button to buy something. This button must be in the first column and row of the keyboard and can be attached only to a message with content of the type messageInvoice
-inlineKeyboardButtonTypeBuy = InlineKeyboardButtonType;
-
-//@description A button with a user reference to be handled in the same way as textEntityTypeMentionName entities @user_id User identifier
-inlineKeyboardButtonTypeUser user_id:int53 = InlineKeyboardButtonType;
-
-//@description A button that copies specified text to clipboard @text The text to copy to clipboard
-inlineKeyboardButtonTypeCopyText text:string = InlineKeyboardButtonType;
-
-
-//@description Represents a single button in an inline keyboard @text Text of the button @type Type of the button
-inlineKeyboardButton text:string type:InlineKeyboardButtonType = InlineKeyboardButton;
-
-
-//@class ReplyMarkup @description Contains a description of a custom keyboard and actions that can be done with it to quickly reply to bots
-
-//@description Instructs application to remove the keyboard once this message has been received. This kind of keyboard can't be received in an incoming message; instead, updateChatReplyMarkup with message_id == 0 will be sent
-//@is_personal True, if the keyboard is removed only for the mentioned users or the target user of a reply
-replyMarkupRemoveKeyboard is_personal:Bool = ReplyMarkup;
-
-//@description Instructs application to force a reply to this message
-//@is_personal True, if a forced reply must automatically be shown to the current user. For outgoing messages, specify true to show the forced reply only for the mentioned users and for the target user of a reply
-//@input_field_placeholder If non-empty, the placeholder to be shown in the input field when the reply is active; 0-64 characters
-replyMarkupForceReply is_personal:Bool input_field_placeholder:string = ReplyMarkup;
-
-//@description Contains a custom keyboard layout to quickly reply to bots
-//@rows A list of rows of bot keyboard buttons
-//@is_persistent True, if the keyboard is expected to always be shown when the ordinary keyboard is hidden
-//@resize_keyboard True, if the application needs to resize the keyboard vertically
-//@one_time True, if the application needs to hide the keyboard after use
-//@is_personal True, if the keyboard must automatically be shown to the current user. For outgoing messages, specify true to show the keyboard only for the mentioned users and for the target user of a reply
-//@input_field_placeholder If non-empty, the placeholder to be shown in the input field when the keyboard is active; 0-64 characters
-replyMarkupShowKeyboard rows:vector<vector<keyboardButton>> is_persistent:Bool resize_keyboard:Bool one_time:Bool is_personal:Bool input_field_placeholder:string = ReplyMarkup;
-
-//@description Contains an inline keyboard layout
-//@rows A list of rows of inline keyboard buttons
-replyMarkupInlineKeyboard rows:vector<vector<inlineKeyboardButton>> = ReplyMarkup;
-
-
-//@class LoginUrlInfo @description Contains information about an inline button of type inlineKeyboardButtonTypeLoginUrl
-
-//@description An HTTP URL needs to be open @url The URL to open @skip_confirmation True, if there is no need to show an ordinary open URL confirmation
-loginUrlInfoOpen url:string skip_confirmation:Bool = LoginUrlInfo;
-
-//@description An authorization confirmation dialog needs to be shown to the user
-//@url An HTTP URL to be opened
-//@domain A domain of the URL
-//@bot_user_id User identifier of a bot linked with the website
-//@request_write_access True, if the user must be asked for the permission to the bot to send them messages
-loginUrlInfoRequestConfirmation url:string domain:string bot_user_id:int53 request_write_access:Bool = LoginUrlInfo;
-
-
-//@description Contains parameters of the application theme
-//@background_color A color of the background in the RGB format
-//@secondary_background_color A secondary color for the background in the RGB format
-//@header_background_color A color of the header background in the RGB format
-//@bottom_bar_background_color A color of the bottom bar background in the RGB format
-//@section_background_color A color of the section background in the RGB format
-//@section_separator_color A color of the section separator in the RGB format
-//@text_color A color of text in the RGB format
-//@accent_text_color An accent color of the text in the RGB format
-//@section_header_text_color A color of text on the section headers in the RGB format
-//@subtitle_text_color A color of the subtitle text in the RGB format
-//@destructive_text_color A color of the text for destructive actions in the RGB format
-//@hint_color A color of hints in the RGB format
-//@link_color A color of links in the RGB format
-//@button_color A color of the buttons in the RGB format
-//@button_text_color A color of text on the buttons in the RGB format
-themeParameters background_color:int32 secondary_background_color:int32 header_background_color:int32 bottom_bar_background_color:int32 section_background_color:int32 section_separator_color:int32 text_color:int32 accent_text_color:int32 section_header_text_color:int32 subtitle_text_color:int32 destructive_text_color:int32 hint_color:int32 link_color:int32 button_color:int32 button_text_color:int32 = ThemeParameters;
-
-
-//@class WebAppOpenMode @description Describes mode in which a Web App is opened
-
-//@description The Web App is opened in the compact mode
-webAppOpenModeCompact = WebAppOpenMode;
-
-//@description The Web App is opened in the full-size mode
-webAppOpenModeFullSize = WebAppOpenMode;
-
-//@description The Web App is opened in the full-screen mode
-webAppOpenModeFullScreen = WebAppOpenMode;
-
-
-//@description Contains information about a Web App found by its short name
-//@web_app The Web App
-//@request_write_access True, if the user must be asked for the permission to the bot to send them messages
-//@skip_confirmation True, if there is no need to show an ordinary open URL confirmation before opening the Web App. The field must be ignored and confirmation must be shown anyway if the Web App link was hidden
-foundWebApp web_app:webApp request_write_access:Bool skip_confirmation:Bool = FoundWebApp;
-
-//@description Contains information about a Web App @launch_id Unique identifier for the Web App launch @url A Web App URL to open in a web view
-webAppInfo launch_id:int64 url:string = WebAppInfo;
-
-//@description Contains information about the main Web App of a bot @url URL of the Web App to open @mode The mode in which the Web App must be opened
-mainWebApp url:string mode:WebAppOpenMode = MainWebApp;
-
-//@description Options to be used when a Web App is opened
-//@theme Preferred Web App theme; pass null to use the default theme
-//@application_name Short name of the current application; 0-64 English letters, digits, and underscores
-//@mode The mode in which the Web App is opened; pass null to open in webAppOpenModeFullSize
-webAppOpenParameters theme:themeParameters application_name:string mode:WebAppOpenMode = WebAppOpenParameters;
-
-
-//@description Contains information about a message thread
-//@chat_id Identifier of the chat to which the message thread belongs
-//@message_thread_id Message thread identifier, unique within the chat
-//@reply_info Information about the message thread; may be null for forum topic threads
-//@unread_message_count Approximate number of unread messages in the message thread
-//@messages The messages from which the thread starts. The messages are returned in reverse chronological order (i.e., in order of decreasing message_id)
-//@draft_message A draft of a message in the message thread; may be null if none
-messageThreadInfo chat_id:int53 message_thread_id:int53 reply_info:messageReplyInfo unread_message_count:int32 messages:vector<message> draft_message:draftMessage = MessageThreadInfo;
-
-
-//@class SavedMessagesTopicType @description Describes type of Saved Messages topic
-
-//@description Topic containing messages sent by the current user of forwarded from an unknown chat
-savedMessagesTopicTypeMyNotes = SavedMessagesTopicType;
-
-//@description Topic containing messages forwarded from a user with hidden privacy
-savedMessagesTopicTypeAuthorHidden = SavedMessagesTopicType;
-
-//@description Topic containing messages forwarded from a specific chat @chat_id Identifier of the chat
-savedMessagesTopicTypeSavedFromChat chat_id:int53 = SavedMessagesTopicType;
-
-
-//@description Contains information about a Saved Messages topic
-//@id Unique topic identifier
-//@type Type of the topic
-//@is_pinned True, if the topic is pinned
-//@order A parameter used to determine order of the topic in the topic list. Topics must be sorted by the order in descending order
-//@last_message Last message in the topic; may be null if none or unknown
-//@draft_message A draft of a message in the topic; may be null if none
-savedMessagesTopic id:int53 type:SavedMessagesTopicType is_pinned:Bool order:int64 last_message:message draft_message:draftMessage = SavedMessagesTopic;
-
-
-//@description Describes a forum topic icon @color Color of the topic icon in RGB format @custom_emoji_id Unique identifier of the custom emoji shown on the topic icon; 0 if none
-forumTopicIcon color:int32 custom_emoji_id:int64 = ForumTopicIcon;
-
-//@description Contains basic information about a forum topic
-//@message_thread_id Message thread identifier of the topic
-//@name Name of the topic
-//@icon Icon of the topic
-//@creation_date Point in time (Unix timestamp) when the topic was created
-//@creator_id Identifier of the creator of the topic
-//@is_general True, if the topic is the General topic list
-//@is_outgoing True, if the topic was created by the current user
-//@is_closed True, if the topic is closed
-//@is_hidden True, if the topic is hidden above the topic list and closed; for General topic only
-forumTopicInfo message_thread_id:int53 name:string icon:forumTopicIcon creation_date:int32 creator_id:MessageSender is_general:Bool is_outgoing:Bool is_closed:Bool is_hidden:Bool = ForumTopicInfo;
-
-//@description Describes a forum topic
-//@info Basic information about the topic
-//@last_message Last message in the topic; may be null if unknown
-//@is_pinned True, if the topic is pinned in the topic list
-//@unread_count Number of unread messages in the topic
-//@last_read_inbox_message_id Identifier of the last read incoming message
-//@last_read_outbox_message_id Identifier of the last read outgoing message
-//@unread_mention_count Number of unread messages with a mention/reply in the topic
-//@unread_reaction_count Number of messages with unread reactions in the topic
-//@notification_settings Notification settings for the topic
-//@draft_message A draft of a message in the topic; may be null if none
-forumTopic info:forumTopicInfo last_message:message is_pinned:Bool unread_count:int32 last_read_inbox_message_id:int53 last_read_outbox_message_id:int53 unread_mention_count:int32 unread_reaction_count:int32 notification_settings:chatNotificationSettings draft_message:draftMessage = ForumTopic;
-
-//@description Describes a list of forum topics
-//@total_count Approximate total number of forum topics found
-//@topics List of forum topics
-//@next_offset_date Offset date for the next getForumTopics request
-//@next_offset_message_id Offset message identifier for the next getForumTopics request
-//@next_offset_message_thread_id Offset message thread identifier for the next getForumTopics request
-forumTopics total_count:int32 topics:vector<forumTopic> next_offset_date:int32 next_offset_message_id:int53 next_offset_message_thread_id:int53 = ForumTopics;
-
-
-//@description Options to be used for generation of a link preview
-//@is_disabled True, if link preview must be disabled
-//@url URL to use for link preview. If empty, then the first URL found in the message text will be used
-//@force_small_media True, if shown media preview must be small; ignored in secret chats or if the URL isn't explicitly specified
-//@force_large_media True, if shown media preview must be large; ignored in secret chats or if the URL isn't explicitly specified
-//@show_above_text True, if link preview must be shown above message text; otherwise, the link preview will be shown below the message text; ignored in secret chats
-linkPreviewOptions is_disabled:Bool url:string force_small_media:Bool force_large_media:Bool show_above_text:Bool = LinkPreviewOptions;
-
-
-//@description Contains information about a user shared with a bot
-//@user_id User identifier
-//@first_name First name of the user; for bots only
-//@last_name Last name of the user; for bots only
-//@username Username of the user; for bots only
-//@photo Profile photo of the user; for bots only; may be null
-sharedUser user_id:int53 first_name:string last_name:string username:string photo:photo = SharedUser;
-
-//@description Contains information about a chat shared with a bot
-//@chat_id Chat identifier
-//@title Title of the chat; for bots only
-//@username Username of the chat; for bots only
-//@photo Photo of the chat; for bots only; may be null
-sharedChat chat_id:int53 title:string username:string photo:photo = SharedChat;
-
-
-//@description Describes theme settings
-//@accent_color Theme accent color in ARGB format
-//@background The background to be used in chats; may be null
-//@outgoing_message_fill The fill to be used as a background for outgoing messages
-//@animate_outgoing_message_fill If true, the freeform gradient fill needs to be animated on every sent message
-//@outgoing_message_accent_color Accent color of outgoing messages in ARGB format
-themeSettings accent_color:int32 background:background outgoing_message_fill:BackgroundFill animate_outgoing_message_fill:Bool outgoing_message_accent_color:int32 = ThemeSettings;
-
-
-//@class RichText @description Describes a formatted text object
-
-//@description A plain text @text Text
-richTextPlain text:string = RichText;
-
-//@description A bold rich text @text Text
-richTextBold text:RichText = RichText;
-
-//@description An italicized rich text @text Text
-richTextItalic text:RichText = RichText;
-
-//@description An underlined rich text @text Text
-richTextUnderline text:RichText = RichText;
-
-//@description A strikethrough rich text @text Text
-richTextStrikethrough text:RichText = RichText;
-
-//@description A fixed-width rich text @text Text
-richTextFixed text:RichText = RichText;
-
-//@description A rich text URL link @text Text @url URL @is_cached True, if the URL has cached instant view server-side
-richTextUrl text:RichText url:string is_cached:Bool = RichText;
-
-//@description A rich text email link @text Text @email_address Email address
-richTextEmailAddress text:RichText email_address:string = RichText;
-
-//@description A subscript rich text @text Text
-richTextSubscript text:RichText = RichText;
-
-//@description A superscript rich text @text Text
-richTextSuperscript text:RichText = RichText;
-
-//@description A marked rich text @text Text
-richTextMarked text:RichText = RichText;
-
-//@description A rich text phone number @text Text @phone_number Phone number
-richTextPhoneNumber text:RichText phone_number:string = RichText;
-
-//@description A small image inside the text
-//@document The image represented as a document. The image can be in GIF, JPEG or PNG format
-//@width Width of a bounding box in which the image must be shown; 0 if unknown
-//@height Height of a bounding box in which the image must be shown; 0 if unknown
-richTextIcon document:document width:int32 height:int32 = RichText;
-
-//@description A reference to a richTexts object on the same page @text The text @anchor_name The name of a richTextAnchor object, which is the first element of the target richTexts object @url An HTTP URL, opening the reference
-richTextReference text:RichText anchor_name:string url:string = RichText;
-
-//@description An anchor @name Anchor name
-richTextAnchor name:string = RichText;
-
-//@description A link to an anchor on the same page @text The link text @anchor_name The anchor name. If the name is empty, the link must bring back to top @url An HTTP URL, opening the anchor
-richTextAnchorLink text:RichText anchor_name:string url:string = RichText;
-
-//@description A concatenation of rich texts @texts Texts
-richTexts texts:vector<RichText> = RichText;
-
-
-//@description Contains a caption of another block @text Content of the caption @credit Block credit (like HTML tag <cite>)
-pageBlockCaption text:RichText credit:RichText = PageBlockCaption;
-
-//@description Describes an item of a list page block @label Item label @page_blocks Item blocks
-pageBlockListItem label:string page_blocks:vector<PageBlock> = PageBlockListItem;
-
-//@class PageBlockHorizontalAlignment @description Describes a horizontal alignment of a table cell content
-
-//@description The content must be left-aligned
-pageBlockHorizontalAlignmentLeft = PageBlockHorizontalAlignment;
-
-//@description The content must be center-aligned
-pageBlockHorizontalAlignmentCenter = PageBlockHorizontalAlignment;
-
-//@description The content must be right-aligned
-pageBlockHorizontalAlignmentRight = PageBlockHorizontalAlignment;
-
-//@class PageBlockVerticalAlignment @description Describes a Vertical alignment of a table cell content
-
-//@description The content must be top-aligned
-pageBlockVerticalAlignmentTop = PageBlockVerticalAlignment;
-
-//@description The content must be middle-aligned
-pageBlockVerticalAlignmentMiddle = PageBlockVerticalAlignment;
-
-//@description The content must be bottom-aligned
-pageBlockVerticalAlignmentBottom = PageBlockVerticalAlignment;
-
-//@description Represents a cell of a table
-//@text Cell text; may be null. If the text is null, then the cell must be invisible
-//@is_header True, if it is a header cell
-//@colspan The number of columns the cell spans
-//@rowspan The number of rows the cell spans
-//@align Horizontal cell content alignment
-//@valign Vertical cell content alignment
-pageBlockTableCell text:RichText is_header:Bool colspan:int32 rowspan:int32 align:PageBlockHorizontalAlignment valign:PageBlockVerticalAlignment = PageBlockTableCell;
-
-//@description Contains information about a related article
-//@url Related article URL
-//@title Article title; may be empty
-//@param_description Article description; may be empty
-//@photo Article photo; may be null
-//@author Article author; may be empty
-//@publish_date Point in time (Unix timestamp) when the article was published; 0 if unknown
-pageBlockRelatedArticle url:string title:string description:string photo:photo author:string publish_date:int32 = PageBlockRelatedArticle;
-
-
-//@class PageBlock @description Describes a block of an instant view for a web page
-
-//@description The title of a page @title Title
-pageBlockTitle title:RichText = PageBlock;
-
-//@description The subtitle of a page @subtitle Subtitle
-pageBlockSubtitle subtitle:RichText = PageBlock;
-
-//@description The author and publishing date of a page @author Author @publish_date Point in time (Unix timestamp) when the article was published; 0 if unknown
-pageBlockAuthorDate author:RichText publish_date:int32 = PageBlock;
-
-//@description A header @header Header
-pageBlockHeader header:RichText = PageBlock;
-
-//@description A subheader @subheader Subheader
-pageBlockSubheader subheader:RichText = PageBlock;
-
-//@description A kicker @kicker Kicker
-pageBlockKicker kicker:RichText = PageBlock;
-
-//@description A text paragraph @text Paragraph text
-pageBlockParagraph text:RichText = PageBlock;
-
-//@description A preformatted text paragraph @text Paragraph text @language Programming language for which the text needs to be formatted
-pageBlockPreformatted text:RichText language:string = PageBlock;
-
-//@description The footer of a page @footer Footer
-pageBlockFooter footer:RichText = PageBlock;
-
-//@description An empty block separating a page
-pageBlockDivider = PageBlock;
-
-//@description An invisible anchor on a page, which can be used in a URL to open the page from the specified anchor @name Name of the anchor
-pageBlockAnchor name:string = PageBlock;
-
-//@description A list of data blocks @items The items of the list
-pageBlockList items:vector<pageBlockListItem> = PageBlock;
-
-//@description A block quote
-//@text Quote text
-//@credit Quote credit
-pageBlockBlockQuote text:RichText credit:RichText = PageBlock;
-
-//@description A pull quote
-//@text Quote text
-//@credit Quote credit
-pageBlockPullQuote text:RichText credit:RichText = PageBlock;
-
-//@description An animation
-//@animation Animation file; may be null
-//@caption Animation caption
-//@need_autoplay True, if the animation must be played automatically
-pageBlockAnimation animation:animation caption:pageBlockCaption need_autoplay:Bool = PageBlock;
-
-//@description An audio file
-//@audio Audio file; may be null
-//@caption Audio file caption
-pageBlockAudio audio:audio caption:pageBlockCaption = PageBlock;
-
-//@description A photo
-//@photo Photo file; may be null
-//@caption Photo caption
-//@url URL that needs to be opened when the photo is clicked
-pageBlockPhoto photo:photo caption:pageBlockCaption url:string = PageBlock;
-
-//@description A video
-//@video Video file; may be null
-//@caption Video caption
-//@need_autoplay True, if the video must be played automatically
-//@is_looped True, if the video must be looped
-pageBlockVideo video:video caption:pageBlockCaption need_autoplay:Bool is_looped:Bool = PageBlock;
-
-//@description A voice note
-//@voice_note Voice note; may be null
-//@caption Voice note caption
-pageBlockVoiceNote voice_note:voiceNote caption:pageBlockCaption = PageBlock;
-
-//@description A page cover
-//@cover Cover
-pageBlockCover cover:PageBlock = PageBlock;
-
-//@description An embedded web page
-//@url URL of the embedded page, if available
-//@html HTML-markup of the embedded page
-//@poster_photo Poster photo, if available; may be null
-//@width Block width; 0 if unknown
-//@height Block height; 0 if unknown
-//@caption Block caption
-//@is_full_width True, if the block must be full width
-//@allow_scrolling True, if scrolling needs to be allowed
-pageBlockEmbedded url:string html:string poster_photo:photo width:int32 height:int32 caption:pageBlockCaption is_full_width:Bool allow_scrolling:Bool = PageBlock;
-
-//@description An embedded post
-//@url URL of the embedded post
-//@author Post author
-//@author_photo Post author photo; may be null
-//@date Point in time (Unix timestamp) when the post was created; 0 if unknown
-//@page_blocks Post content
-//@caption Post caption
-pageBlockEmbeddedPost url:string author:string author_photo:photo date:int32 page_blocks:vector<PageBlock> caption:pageBlockCaption = PageBlock;
-
-//@description A collage
-//@page_blocks Collage item contents
-//@caption Block caption
-pageBlockCollage page_blocks:vector<PageBlock> caption:pageBlockCaption = PageBlock;
-
-//@description A slideshow
-//@page_blocks Slideshow item contents
-//@caption Block caption
-pageBlockSlideshow page_blocks:vector<PageBlock> caption:pageBlockCaption = PageBlock;
-
-//@description A link to a chat
-//@title Chat title
-//@photo Chat photo; may be null
-//@accent_color_id Identifier of the accent color for chat title and background of chat photo
-//@username Chat username by which all other information about the chat can be resolved
-pageBlockChatLink title:string photo:chatPhotoInfo accent_color_id:int32 username:string = PageBlock;
-
-//@description A table
-//@caption Table caption
-//@cells Table cells
-//@is_bordered True, if the table is bordered
-//@is_striped True, if the table is striped
-pageBlockTable caption:RichText cells:vector<vector<pageBlockTableCell>> is_bordered:Bool is_striped:Bool = PageBlock;
-
-//@description A collapsible block
-//@header Always visible heading for the block
-//@page_blocks Block contents
-//@is_open True, if the block is open by default
-pageBlockDetails header:RichText page_blocks:vector<PageBlock> is_open:Bool = PageBlock;
-
-//@description Related articles
-//@header Block header
-//@articles List of related articles
-pageBlockRelatedArticles header:RichText articles:vector<pageBlockRelatedArticle> = PageBlock;
-
-//@description A map
-//@location Location of the map center
-//@zoom Map zoom level
-//@width Map width
-//@height Map height
-//@caption Block caption
-pageBlockMap location:location zoom:int32 width:int32 height:int32 caption:pageBlockCaption = PageBlock;
-
-
-//@description Describes an instant view page for a web page
-//@page_blocks Content of the instant view page
-//@view_count Number of the instant view views; 0 if unknown
-//@version Version of the instant view; currently, can be 1 or 2
-//@is_rtl True, if the instant view must be shown from right to left
-//@is_full True, if the instant view contains the full page. A network request might be needed to get the full instant view
-//@feedback_link An internal link to be opened to leave feedback about the instant view
-webPageInstantView page_blocks:vector<PageBlock> view_count:int32 version:int32 is_rtl:Bool is_full:Bool feedback_link:InternalLinkType = WebPageInstantView;
-
-
-//@class LinkPreviewAlbumMedia @description Describes a media from a link preview album
-
-//@description The media is a photo @photo Photo description
-linkPreviewAlbumMediaPhoto photo:photo = LinkPreviewAlbumMedia;
-
-//@description The media is a video @video Video description
-linkPreviewAlbumMediaVideo video:video = LinkPreviewAlbumMedia;
-
-
-//@class LinkPreviewType @description Describes type of link preview
-
-//@description The link is a link to a media album consisting of photos and videos @media The list of album media @caption Album caption
-linkPreviewTypeAlbum media:vector<LinkPreviewAlbumMedia> caption:string = LinkPreviewType;
-
-//@description The link is a link to an animation @animation The animation
-linkPreviewTypeAnimation animation:animation = LinkPreviewType;
-
-//@description The link is a link to an app at App Store or Google Play @photo Photo for the app
-linkPreviewTypeApp photo:photo = LinkPreviewType;
-
-//@description The link is a link to a web site @photo Article's main photo; may be null
-linkPreviewTypeArticle photo:photo = LinkPreviewType;
-
-//@description The link is a link to an audio @audio The audio description
-linkPreviewTypeAudio audio:audio = LinkPreviewType;
-
-//@description The link is a link to a background. Link preview title and description are available only for filled backgrounds
-//@document Document with the background; may be null for filled backgrounds
-//@background_type Type of the background; may be null if unknown
-linkPreviewTypeBackground document:document background_type:BackgroundType = LinkPreviewType;
-
-//@description The link is a link to boost a channel chat @photo Photo of the chat; may be null
-linkPreviewTypeChannelBoost photo:chatPhoto = LinkPreviewType;
-
-//@description The link is a link to a chat
-//@type Type of the chat
-//@photo Photo of the chat; may be null
-//@creates_join_request True, if the link only creates join request
-linkPreviewTypeChat type:InviteLinkChatType photo:chatPhoto creates_join_request:Bool = LinkPreviewType;
-
-//@description The link is a link to a general file @document The document description
-linkPreviewTypeDocument document:document = LinkPreviewType;
-
-//@description The link is a link to an animation player
-//@url URL of the external animation player
-//@thumbnail Thumbnail of the animation; may be null if unknown
-//@duration Duration of the animation, in seconds
-//@width Expected width of the embedded player
-//@height Expected height of the embedded player
-linkPreviewTypeEmbeddedAnimationPlayer url:string thumbnail:photo duration:int32 width:int32 height:int32 = LinkPreviewType;
-
-//@description The link is a link to an audio player
-//@url URL of the external audio player
-//@thumbnail Thumbnail of the audio; may be null if unknown
-//@duration Duration of the audio, in seconds
-//@width Expected width of the embedded player
-//@height Expected height of the embedded player
-linkPreviewTypeEmbeddedAudioPlayer url:string thumbnail:photo duration:int32 width:int32 height:int32 = LinkPreviewType;
-
-//@description The link is a link to a video player
-//@url URL of the external video player
-//@thumbnail Thumbnail of the video; may be null if unknown
-//@duration Duration of the video, in seconds
-//@width Expected width of the embedded player
-//@height Expected height of the embedded player
-linkPreviewTypeEmbeddedVideoPlayer url:string thumbnail:photo duration:int32 width:int32 height:int32 = LinkPreviewType;
-
-//@description The link is a link to an audio file
-//@url URL of the audio file
-//@mime_type MIME type of the audio file
-//@duration Duration of the audio, in seconds; 0 if unknown
-linkPreviewTypeExternalAudio url:string mime_type:string duration:int32 = LinkPreviewType;
-
-//@description The link is a link to a video file
-//@url URL of the video file
-//@mime_type MIME type of the video file
-//@width Expected width of the video preview; 0 if unknown
-//@height Expected height of the video preview; 0 if unknown
-//@duration Duration of the video, in seconds; 0 if unknown
-linkPreviewTypeExternalVideo url:string mime_type:string width:int32 height:int32 duration:int32 = LinkPreviewType;
-
-//@description The link is a link to an invoice
-linkPreviewTypeInvoice = LinkPreviewType;
-
-//@description The link is a link to a text or a poll Telegram message
-linkPreviewTypeMessage = LinkPreviewType;
-
-//@description The link is a link to a photo @photo The photo
-linkPreviewTypePhoto photo:photo = LinkPreviewType;
-
-//@description The link is a link to a Telegram Premium gift code
-linkPreviewTypePremiumGiftCode = LinkPreviewType;
-
-//@description The link is a link to a shareable chat folder
-linkPreviewTypeShareableChatFolder = LinkPreviewType;
-
-//@description The link is a link to a sticker @sticker The sticker. It can be an arbitrary WEBP image and can have dimensions bigger than 512
-linkPreviewTypeSticker sticker:sticker = LinkPreviewType;
-
-//@description The link is a link to a sticker set @stickers Up to 4 stickers from the sticker set
-linkPreviewTypeStickerSet stickers:vector<sticker> = LinkPreviewType;
-
-//@description The link is a link to a story. Link preview description is unavailable @story_sender_chat_id The identifier of the chat that posted the story @story_id Story identifier
-linkPreviewTypeStory story_sender_chat_id:int53 story_id:int32 = LinkPreviewType;
-
-//@description The link is a link to boost a supergroup chat @photo Photo of the chat; may be null
-linkPreviewTypeSupergroupBoost photo:chatPhoto = LinkPreviewType;
-
-//@description The link is a link to a cloud theme. TDLib has no theme support yet @documents The list of files with theme description @settings Settings for the cloud theme; may be null if unknown
-linkPreviewTypeTheme documents:vector<document> settings:themeSettings = LinkPreviewType;
-
-//@description The link preview type is unsupported yet
-linkPreviewTypeUnsupported = LinkPreviewType;
-
-//@description The link is a link to an upgraded gift @gift The gift
-linkPreviewTypeUpgradedGift gift:upgradedGift = LinkPreviewType;
-
-//@description The link is a link to a user @photo Photo of the user; may be null if none @is_bot True, if the user is a bot
-linkPreviewTypeUser photo:chatPhoto is_bot:Bool = LinkPreviewType;
-
-//@description The link is a link to a video
-//@video The video description
-//@cover Cover of the video; may be null if none
-//@start_timestamp Timestamp from which the video playing must start, in seconds
-linkPreviewTypeVideo video:video cover:photo start_timestamp:int32 = LinkPreviewType;
-
-//@description The link is a link to a video chat
-//@photo Photo of the chat with the video chat; may be null if none
-//@is_live_stream True, if the video chat is expected to be a live stream in a channel or a broadcast group
-linkPreviewTypeVideoChat photo:chatPhoto is_live_stream:Bool = LinkPreviewType;
-
-//@description The link is a link to a video note message @video_note The video note
-linkPreviewTypeVideoNote video_note:videoNote = LinkPreviewType;
-
-//@description The link is a link to a voice note message @voice_note The voice note
-linkPreviewTypeVoiceNote voice_note:voiceNote = LinkPreviewType;
-
-//@description The link is a link to a Web App @photo Web App photo; may be null if none
-linkPreviewTypeWebApp photo:photo = LinkPreviewType;
-
-
-//@description Describes a link preview
-//@url Original URL of the link
-//@display_url URL to display
-//@site_name Short name of the site (e.g., Google Docs, App Store)
-//@title Title of the content
-//@param_description Description of the content
-//@author Author of the content
-//@type Type of the link preview
-//@has_large_media True, if size of media in the preview can be changed
-//@show_large_media True, if large media preview must be shown; otherwise, the media preview must be shown small and only the first frame must be shown for videos
-//@show_media_above_description True, if media must be shown above link preview description; otherwise, the media must be shown below the description
-//@skip_confirmation True, if there is no need to show an ordinary open URL confirmation, when opening the URL from the preview, because the URL is shown in the message text in clear
-//@show_above_text True, if the link preview must be shown above message text; otherwise, the link preview must be shown below the message text
-//@instant_view_version Version of instant view (currently, can be 1 or 2) for the web page; 0 if none
-linkPreview url:string display_url:string site_name:string title:string description:formattedText author:string type:LinkPreviewType has_large_media:Bool show_large_media:Bool show_media_above_description:Bool skip_confirmation:Bool show_above_text:Bool instant_view_version:int32 = LinkPreview;
-
-
-//@description Contains information about a country
-//@country_code A two-letter ISO 3166-1 alpha-2 country code
-//@name Native name of the country
-//@english_name English name of the country
-//@is_hidden True, if the country must be hidden from the list of all countries
-//@calling_codes List of country calling codes
-countryInfo country_code:string name:string english_name:string is_hidden:Bool calling_codes:vector<string> = CountryInfo;
-
-//@description Contains information about countries @countries The list of countries
-countries countries:vector<countryInfo> = Countries;
-
-//@description Contains information about a phone number
-//@country Information about the country to which the phone number belongs; may be null
-//@country_calling_code The part of the phone number denoting country calling code or its part
-//@formatted_phone_number The phone number without country calling code formatted accordingly to local rules. Expected digits are returned as '-', but even more digits might be entered by the user
-//@is_anonymous True, if the phone number was bought at https://fragment.com and isn't tied to a SIM card. Information about the phone number can be received using getCollectibleItemInfo
-phoneNumberInfo country:countryInfo country_calling_code:string formatted_phone_number:string is_anonymous:Bool = PhoneNumberInfo;
-
-
-//@class CollectibleItemType @description Describes a collectible item that can be purchased at https://fragment.com
-
-//@description A username @username The username
-collectibleItemTypeUsername username:string = CollectibleItemType;
-
-//@description A phone number @phone_number The phone number
-collectibleItemTypePhoneNumber phone_number:string = CollectibleItemType;
-
-
-//@description Contains information about a collectible item and its last purchase
-//@purchase_date Point in time (Unix timestamp) when the item was purchased
-//@currency Currency for the paid amount
-//@amount The paid amount, in the smallest units of the currency
-//@cryptocurrency Cryptocurrency used to pay for the item
-//@cryptocurrency_amount The paid amount, in the smallest units of the cryptocurrency
-//@url Individual URL for the item on https://fragment.com
-collectibleItemInfo purchase_date:int32 currency:string amount:int53 cryptocurrency:string cryptocurrency_amount:int64 url:string = CollectibleItemInfo;
-
-
-//@description Describes an action associated with a bank card number @text Action text @url The URL to be opened
-bankCardActionOpenUrl text:string url:string = BankCardActionOpenUrl;
-
-//@description Information about a bank card @title Title of the bank card description @actions Actions that can be done with the bank card number
-bankCardInfo title:string actions:vector<bankCardActionOpenUrl> = BankCardInfo;
-
-
-//@description Describes an address
-//@country_code A two-letter ISO 3166-1 alpha-2 country code
-//@state State, if applicable
-//@city City
-//@street_line1 First line of the address
-//@street_line2 Second line of the address
-//@postal_code Address postal code
-address country_code:string state:string city:string street_line1:string street_line2:string postal_code:string = Address;
-
-//@description Describes an address of a location
-//@country_code A two-letter ISO 3166-1 alpha-2 country code
-//@state State, if applicable; empty if unknown
-//@city City; empty if unknown
-//@street The address; empty if unknown
-locationAddress country_code:string state:string city:string street:string = LocationAddress;
-
-
-//@description Portion of the price of a product (e.g., "delivery cost", "tax amount") @label Label for this portion of the product price @amount Currency amount in the smallest units of the currency
-labeledPricePart label:string amount:int53 = LabeledPricePart;
-
-//@description Product invoice
-//@currency ISO 4217 currency code
-//@price_parts A list of objects used to calculate the total price of the product
-//@subscription_period The number of seconds between consecutive Telegram Star debiting for subscription invoices; 0 if the invoice doesn't create subscription
-//@max_tip_amount The maximum allowed amount of tip in the smallest units of the currency
-//@suggested_tip_amounts Suggested amounts of tip in the smallest units of the currency
-//@recurring_payment_terms_of_service_url An HTTP URL with terms of service for recurring payments. If non-empty, the invoice payment will result in recurring payments and the user must accept the terms of service before allowed to pay
-//@terms_of_service_url An HTTP URL with terms of service for non-recurring payments. If non-empty, then the user must accept the terms of service before allowed to pay
-//@is_test True, if the payment is a test payment
-//@need_name True, if the user's name is needed for payment
-//@need_phone_number True, if the user's phone number is needed for payment
-//@need_email_address True, if the user's email address is needed for payment
-//@need_shipping_address True, if the user's shipping address is needed for payment
-//@send_phone_number_to_provider True, if the user's phone number will be sent to the provider
-//@send_email_address_to_provider True, if the user's email address will be sent to the provider
-//@is_flexible True, if the total price depends on the shipping method
-invoice currency:string price_parts:vector<labeledPricePart> subscription_period:int32 max_tip_amount:int53 suggested_tip_amounts:vector<int53> recurring_payment_terms_of_service_url:string terms_of_service_url:string is_test:Bool need_name:Bool need_phone_number:Bool need_email_address:Bool need_shipping_address:Bool send_phone_number_to_provider:Bool send_email_address_to_provider:Bool is_flexible:Bool = Invoice;
-
-//@description Order information
-//@name Name of the user
-//@phone_number Phone number of the user
-//@email_address Email address of the user
-//@shipping_address Shipping address for this order; may be null
-orderInfo name:string phone_number:string email_address:string shipping_address:address = OrderInfo;
-
-//@description One shipping option
-//@id Shipping option identifier
-//@title Option title
-//@price_parts A list of objects used to calculate the total shipping costs
-shippingOption id:string title:string price_parts:vector<labeledPricePart> = ShippingOption;
-
-//@description Contains information about saved payment credentials @id Unique identifier of the saved credentials @title Title of the saved credentials
-savedCredentials id:string title:string = SavedCredentials;
-
-
-//@class InputCredentials @description Contains information about the payment method chosen by the user
-
-//@description Applies if a user chooses some previously saved payment credentials. To use their previously saved credentials, the user must have a valid temporary password @saved_credentials_id Identifier of the saved credentials
-inputCredentialsSaved saved_credentials_id:string = InputCredentials;
-
-//@description Applies if a user enters new credentials on a payment provider website @data JSON-encoded data with the credential identifier from the payment provider @allow_save True, if the credential identifier can be saved on the server side
-inputCredentialsNew data:string allow_save:Bool = InputCredentials;
-
-//@description Applies if a user enters new credentials using Apple Pay @data JSON-encoded data with the credential identifier
-inputCredentialsApplePay data:string = InputCredentials;
-
-//@description Applies if a user enters new credentials using Google Pay @data JSON-encoded data with the credential identifier
-inputCredentialsGooglePay data:string = InputCredentials;
-
-
-//@class PaymentProvider @description Contains information about a payment provider
-
-//@description Smart Glocal payment provider @public_token Public payment token @tokenize_url URL for sending card tokenization requests
-paymentProviderSmartGlocal public_token:string tokenize_url:string = PaymentProvider;
-
-//@description Stripe payment provider
-//@publishable_key Stripe API publishable key
-//@need_country True, if the user country must be provided
-//@need_postal_code True, if the user ZIP/postal code must be provided
-//@need_cardholder_name True, if the cardholder name must be provided
-paymentProviderStripe publishable_key:string need_country:Bool need_postal_code:Bool need_cardholder_name:Bool = PaymentProvider;
-
-//@description Some other payment provider, for which a web payment form must be shown @url Payment form URL
-paymentProviderOther url:string = PaymentProvider;
-
-
-//@description Describes an additional payment option @title Title for the payment option @url Payment form URL to be opened in a web view
-paymentOption title:string url:string = PaymentOption;
-
-
-//@class PaymentFormType @description Describes type of payment form
-
-//@description The payment form is for a regular payment
-//@invoice Full information about the invoice
-//@payment_provider_user_id User identifier of the payment provider bot
-//@payment_provider Information about the payment provider
-//@additional_payment_options The list of additional payment options
-//@saved_order_info Saved server-side order information; may be null
-//@saved_credentials The list of saved payment credentials
-//@can_save_credentials True, if the user can choose to save credentials
-//@need_password True, if the user will be able to save credentials, if sets up a 2-step verification password
-paymentFormTypeRegular invoice:invoice payment_provider_user_id:int53 payment_provider:PaymentProvider additional_payment_options:vector<paymentOption> saved_order_info:orderInfo saved_credentials:vector<savedCredentials> can_save_credentials:Bool need_password:Bool = PaymentFormType;
-
-//@description The payment form is for a payment in Telegram Stars @star_count Number of Telegram Stars that will be paid
-paymentFormTypeStars star_count:int53 = PaymentFormType;
-
-//@description The payment form is for a payment in Telegram Stars for subscription @pricing Information about subscription plan
-paymentFormTypeStarSubscription pricing:starSubscriptionPricing = PaymentFormType;
-
-
-//@description Contains information about an invoice payment form
-//@id The payment form identifier
-//@type Type of the payment form
-//@seller_bot_user_id User identifier of the seller bot
-//@product_info Information about the product
-paymentForm id:int64 type:PaymentFormType seller_bot_user_id:int53 product_info:productInfo = PaymentForm;
-
-//@description Contains a temporary identifier of validated order information, which is stored for one hour, and the available shipping options @order_info_id Temporary identifier of the order information @shipping_options Available shipping options
-validatedOrderInfo order_info_id:string shipping_options:vector<shippingOption> = ValidatedOrderInfo;
-
-//@description Contains the result of a payment request @success True, if the payment request was successful; otherwise, the verification_url will be non-empty @verification_url URL for additional payment credentials verification
-paymentResult success:Bool verification_url:string = PaymentResult;
-
-
-//@class PaymentReceiptType @description Describes type of successful payment
-
-//@description The payment was done using a third-party payment provider
-//@payment_provider_user_id User identifier of the payment provider bot
-//@invoice Information about the invoice
-//@order_info Order information; may be null
-//@shipping_option Chosen shipping option; may be null
-//@credentials_title Title of the saved credentials chosen by the buyer
-//@tip_amount The amount of tip chosen by the buyer in the smallest units of the currency
-paymentReceiptTypeRegular payment_provider_user_id:int53 invoice:invoice order_info:orderInfo shipping_option:shippingOption credentials_title:string tip_amount:int53 = PaymentReceiptType;
-
-//@description The payment was done using Telegram Stars
-//@star_count Number of Telegram Stars that were paid
-//@transaction_id Unique identifier of the transaction that can be used to dispute it
-paymentReceiptTypeStars star_count:int53 transaction_id:string = PaymentReceiptType;
-
-
-//@description Contains information about a successful payment
-//@product_info Information about the product
-//@date Point in time (Unix timestamp) when the payment was made
-//@seller_bot_user_id User identifier of the seller bot
-//@type Type of the payment receipt
-paymentReceipt product_info:productInfo date:int32 seller_bot_user_id:int53 type:PaymentReceiptType = PaymentReceipt;
-
-
-//@class InputInvoice @description Describes an invoice to process
-
-//@description An invoice from a message of the type messageInvoice or paid media purchase from messagePaidMedia
-//@chat_id Chat identifier of the message
-//@message_id Message identifier. Use messageProperties.can_be_paid to check whether the message can be used in the method
-inputInvoiceMessage chat_id:int53 message_id:int53 = InputInvoice;
-
-//@description An invoice from a link of the type internalLinkTypeInvoice @name Name of the invoice
-inputInvoiceName name:string = InputInvoice;
-
-//@description An invoice for a payment toward Telegram; must not be used in the in-store apps @purpose Transaction purpose
-inputInvoiceTelegram purpose:TelegramPaymentPurpose = InputInvoice;
-
-
-//@class PaidMedia @description Describes a paid media
-
-//@description The media is hidden until the invoice is paid
-//@width Media width; 0 if unknown
-//@height Media height; 0 if unknown
-//@duration Media duration, in seconds; 0 if unknown
-//@minithumbnail Media minithumbnail; may be null
-paidMediaPreview width:int32 height:int32 duration:int32 minithumbnail:minithumbnail = PaidMedia;
-
-//@description The media is a photo @photo The photo
-paidMediaPhoto photo:photo = PaidMedia;
-
-//@description The media is a video
-//@video The video
-//@cover Cover of the video; may be null if none
-//@start_timestamp Timestamp from which the video playing must start, in seconds
-paidMediaVideo video:video cover:photo start_timestamp:int32 = PaidMedia;
-
-//@description The media is unsupported
-paidMediaUnsupported = PaidMedia;
-
-
-//@description Describes parameters of a giveaway
-//@boosted_chat_id Identifier of the supergroup or channel chat, which will be automatically boosted by the winners of the giveaway for duration of the Telegram Premium subscription,
-//-or for the specified time. If the chat is a channel, then can_post_messages right is required in the channel, otherwise, the user must be an administrator in the supergroup
-//@additional_chat_ids Identifiers of other supergroup or channel chats that must be subscribed by the users to be eligible for the giveaway. There can be up to getOption("giveaway_additional_chat_count_max") additional chats
-//@winners_selection_date Point in time (Unix timestamp) when the giveaway is expected to be performed; must be 60-getOption("giveaway_duration_max") seconds in the future in scheduled giveaways
-//@only_new_members True, if only new members of the chats will be eligible for the giveaway
-//@has_public_winners True, if the list of winners of the giveaway will be available to everyone
-//@country_codes The list of two-letter ISO 3166-1 alpha-2 codes of countries, users from which will be eligible for the giveaway. If empty, then all users can participate in the giveaway.
-//-There can be up to getOption("giveaway_country_count_max") chosen countries. Users with phone number that was bought at https://fragment.com can participate in any giveaway and the country code "FT" must not be specified in the list
-//@prize_description Additional description of the giveaway prize; 0-128 characters
-giveawayParameters boosted_chat_id:int53 additional_chat_ids:vector<int53> winners_selection_date:int32 only_new_members:Bool has_public_winners:Bool country_codes:vector<string> prize_description:string = GiveawayParameters;
-
-
-//@description File with the date it was uploaded @file The file @date Point in time (Unix timestamp) when the file was uploaded
-datedFile file:file date:int32 = DatedFile;
-
-
-//@class PassportElementType @description Contains the type of Telegram Passport element
-
-//@description A Telegram Passport element containing the user's personal details
-passportElementTypePersonalDetails = PassportElementType;
-
-//@description A Telegram Passport element containing the user's passport
-passportElementTypePassport = PassportElementType;
-
-//@description A Telegram Passport element containing the user's driver license
-passportElementTypeDriverLicense = PassportElementType;
-
-//@description A Telegram Passport element containing the user's identity card
-passportElementTypeIdentityCard = PassportElementType;
-
-//@description A Telegram Passport element containing the user's internal passport
-passportElementTypeInternalPassport = PassportElementType;
-
-//@description A Telegram Passport element containing the user's address
-passportElementTypeAddress = PassportElementType;
-
-//@description A Telegram Passport element containing the user's utility bill
-passportElementTypeUtilityBill = PassportElementType;
-
-//@description A Telegram Passport element containing the user's bank statement
-passportElementTypeBankStatement = PassportElementType;
-
-//@description A Telegram Passport element containing the user's rental agreement
-passportElementTypeRentalAgreement = PassportElementType;
-
-//@description A Telegram Passport element containing the registration page of the user's passport
-passportElementTypePassportRegistration = PassportElementType;
-
-//@description A Telegram Passport element containing the user's temporary registration
-passportElementTypeTemporaryRegistration = PassportElementType;
-
-//@description A Telegram Passport element containing the user's phone number
-passportElementTypePhoneNumber = PassportElementType;
-
-//@description A Telegram Passport element containing the user's email address
-passportElementTypeEmailAddress = PassportElementType;
-
-
-//@description Represents a date according to the Gregorian calendar @day Day of the month; 1-31 @month Month; 1-12 @year Year; 1-9999
-date day:int32 month:int32 year:int32 = Date;
-
-//@description Contains the user's personal details
-//@first_name First name of the user written in English; 1-255 characters
-//@middle_name Middle name of the user written in English; 0-255 characters
-//@last_name Last name of the user written in English; 1-255 characters
-//@native_first_name Native first name of the user; 1-255 characters
-//@native_middle_name Native middle name of the user; 0-255 characters
-//@native_last_name Native last name of the user; 1-255 characters
-//@birthdate Birthdate of the user
-//@gender Gender of the user, "male" or "female"
-//@country_code A two-letter ISO 3166-1 alpha-2 country code of the user's country
-//@residence_country_code A two-letter ISO 3166-1 alpha-2 country code of the user's residence country
-personalDetails first_name:string middle_name:string last_name:string native_first_name:string native_middle_name:string native_last_name:string birthdate:date gender:string country_code:string residence_country_code:string = PersonalDetails;
-
-//@description An identity document
-//@number Document number; 1-24 characters
-//@expiration_date Document expiration date; may be null if not applicable
-//@front_side Front side of the document
-//@reverse_side Reverse side of the document; only for driver license and identity card; may be null
-//@selfie Selfie with the document; may be null
-//@translation List of files containing a certified English translation of the document
-identityDocument number:string expiration_date:date front_side:datedFile reverse_side:datedFile selfie:datedFile translation:vector<datedFile> = IdentityDocument;
-
-//@description An identity document to be saved to Telegram Passport
-//@number Document number; 1-24 characters
-//@expiration_date Document expiration date; pass null if not applicable
-//@front_side Front side of the document
-//@reverse_side Reverse side of the document; only for driver license and identity card; pass null otherwise
-//@selfie Selfie with the document; pass null if unavailable
-//@translation List of files containing a certified English translation of the document
-inputIdentityDocument number:string expiration_date:date front_side:InputFile reverse_side:InputFile selfie:InputFile translation:vector<InputFile> = InputIdentityDocument;
-
-//@description A personal document, containing some information about a user @files List of files containing the pages of the document @translation List of files containing a certified English translation of the document
-personalDocument files:vector<datedFile> translation:vector<datedFile> = PersonalDocument;
-
-//@description A personal document to be saved to Telegram Passport @files List of files containing the pages of the document @translation List of files containing a certified English translation of the document
-inputPersonalDocument files:vector<InputFile> translation:vector<InputFile> = InputPersonalDocument;
-
-
-//@class PassportElement @description Contains information about a Telegram Passport element
-
-//@description A Telegram Passport element containing the user's personal details @personal_details Personal details of the user
-passportElementPersonalDetails personal_details:personalDetails = PassportElement;
-
-//@description A Telegram Passport element containing the user's passport @passport Passport
-passportElementPassport passport:identityDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's driver license @driver_license Driver license
-passportElementDriverLicense driver_license:identityDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's identity card @identity_card Identity card
-passportElementIdentityCard identity_card:identityDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's internal passport @internal_passport Internal passport
-passportElementInternalPassport internal_passport:identityDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's address @address Address
-passportElementAddress address:address = PassportElement;
-
-//@description A Telegram Passport element containing the user's utility bill @utility_bill Utility bill
-passportElementUtilityBill utility_bill:personalDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's bank statement @bank_statement Bank statement
-passportElementBankStatement bank_statement:personalDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's rental agreement @rental_agreement Rental agreement
-passportElementRentalAgreement rental_agreement:personalDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's passport registration pages @passport_registration Passport registration pages
-passportElementPassportRegistration passport_registration:personalDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's temporary registration @temporary_registration Temporary registration
-passportElementTemporaryRegistration temporary_registration:personalDocument = PassportElement;
-
-//@description A Telegram Passport element containing the user's phone number @phone_number Phone number
-passportElementPhoneNumber phone_number:string = PassportElement;
-
-//@description A Telegram Passport element containing the user's email address @email_address Email address
-passportElementEmailAddress email_address:string = PassportElement;
-
-
-//@class InputPassportElement @description Contains information about a Telegram Passport element to be saved
-
-//@description A Telegram Passport element to be saved containing the user's personal details @personal_details Personal details of the user
-inputPassportElementPersonalDetails personal_details:personalDetails = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's passport @passport The passport to be saved
-inputPassportElementPassport passport:inputIdentityDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's driver license @driver_license The driver license to be saved
-inputPassportElementDriverLicense driver_license:inputIdentityDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's identity card @identity_card The identity card to be saved
-inputPassportElementIdentityCard identity_card:inputIdentityDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's internal passport @internal_passport The internal passport to be saved
-inputPassportElementInternalPassport internal_passport:inputIdentityDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's address @address The address to be saved
-inputPassportElementAddress address:address = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's utility bill @utility_bill The utility bill to be saved
-inputPassportElementUtilityBill utility_bill:inputPersonalDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's bank statement @bank_statement The bank statement to be saved
-inputPassportElementBankStatement bank_statement:inputPersonalDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's rental agreement @rental_agreement The rental agreement to be saved
-inputPassportElementRentalAgreement rental_agreement:inputPersonalDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's passport registration @passport_registration The passport registration page to be saved
-inputPassportElementPassportRegistration passport_registration:inputPersonalDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's temporary registration @temporary_registration The temporary registration document to be saved
-inputPassportElementTemporaryRegistration temporary_registration:inputPersonalDocument = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's phone number @phone_number The phone number to be saved
-inputPassportElementPhoneNumber phone_number:string = InputPassportElement;
-
-//@description A Telegram Passport element to be saved containing the user's email address @email_address The email address to be saved
-inputPassportElementEmailAddress email_address:string = InputPassportElement;
-
-
-//@description Contains information about saved Telegram Passport elements @elements Telegram Passport elements
-passportElements elements:vector<PassportElement> = PassportElements;
-
-
-//@class PassportElementErrorSource @description Contains the description of an error in a Telegram Passport element
-
-//@description The element contains an error in an unspecified place. The error will be considered resolved when new data is added
-passportElementErrorSourceUnspecified = PassportElementErrorSource;
-
-//@description One of the data fields contains an error. The error will be considered resolved when the value of the field changes @field_name Field name
-passportElementErrorSourceDataField field_name:string = PassportElementErrorSource;
-
-//@description The front side of the document contains an error. The error will be considered resolved when the file with the front side changes
-passportElementErrorSourceFrontSide = PassportElementErrorSource;
-
-//@description The reverse side of the document contains an error. The error will be considered resolved when the file with the reverse side changes
-passportElementErrorSourceReverseSide = PassportElementErrorSource;
-
-//@description The selfie with the document contains an error. The error will be considered resolved when the file with the selfie changes
-passportElementErrorSourceSelfie = PassportElementErrorSource;
-
-//@description One of files with the translation of the document contains an error. The error will be considered resolved when the file changes @file_index Index of a file with the error
-passportElementErrorSourceTranslationFile file_index:int32 = PassportElementErrorSource;
-
-//@description The translation of the document contains an error. The error will be considered resolved when the list of translation files changes
-passportElementErrorSourceTranslationFiles = PassportElementErrorSource;
-
-//@description The file contains an error. The error will be considered resolved when the file changes @file_index Index of a file with the error
-passportElementErrorSourceFile file_index:int32 = PassportElementErrorSource;
-
-//@description The list of attached files contains an error. The error will be considered resolved when the list of files changes
-passportElementErrorSourceFiles = PassportElementErrorSource;
-
-
-//@description Contains the description of an error in a Telegram Passport element @type Type of the Telegram Passport element which has the error @message Error message @source Error source
-passportElementError type:PassportElementType message:string source:PassportElementErrorSource = PassportElementError;
-
-
-//@description Contains information about a Telegram Passport element that was requested by a service
-//@type Type of the element
-//@is_selfie_required True, if a selfie is required with the identity document
-//@is_translation_required True, if a certified English translation is required with the document
-//@is_native_name_required True, if personal details must include the user's name in the language of their country of residence
-passportSuitableElement type:PassportElementType is_selfie_required:Bool is_translation_required:Bool is_native_name_required:Bool = PassportSuitableElement;
-
-//@description Contains a description of the required Telegram Passport element that was requested by a service @suitable_elements List of Telegram Passport elements any of which is enough to provide
-passportRequiredElement suitable_elements:vector<passportSuitableElement> = PassportRequiredElement;
-
-//@description Contains information about a Telegram Passport authorization form that was requested
-//@id Unique identifier of the authorization form
-//@required_elements Telegram Passport elements that must be provided to complete the form
-//@privacy_policy_url URL for the privacy policy of the service; may be empty
-passportAuthorizationForm id:int32 required_elements:vector<passportRequiredElement> privacy_policy_url:string = PassportAuthorizationForm;
-
-//@description Contains information about a Telegram Passport elements and corresponding errors @elements Telegram Passport elements @errors Errors in the elements that are already available
-passportElementsWithErrors elements:vector<PassportElement> errors:vector<passportElementError> = PassportElementsWithErrors;
-
-
-//@description Contains encrypted Telegram Passport data credentials @data The encrypted credentials @hash The decrypted data hash @secret Secret for data decryption, encrypted with the service's public key
-encryptedCredentials data:bytes hash:bytes secret:bytes = EncryptedCredentials;
-
-
-//@description Contains information about an encrypted Telegram Passport element; for bots only
-//@type Type of Telegram Passport element
-//@data Encrypted JSON-encoded data about the user
-//@front_side The front side of an identity document
-//@reverse_side The reverse side of an identity document; may be null
-//@selfie Selfie with the document; may be null
-//@translation List of files containing a certified English translation of the document
-//@files List of attached files
-//@value Unencrypted data, phone number or email address
-//@hash Hash of the entire element
-encryptedPassportElement type:PassportElementType data:bytes front_side:datedFile reverse_side:datedFile selfie:datedFile translation:vector<datedFile> files:vector<datedFile> value:string hash:string = EncryptedPassportElement;
-
-
-//@class InputPassportElementErrorSource @description Contains the description of an error in a Telegram Passport element; for bots only
-
-//@description The element contains an error in an unspecified place. The error will be considered resolved when new data is added @element_hash Current hash of the entire element
-inputPassportElementErrorSourceUnspecified element_hash:bytes = InputPassportElementErrorSource;
-
-//@description A data field contains an error. The error is considered resolved when the field's value changes @field_name Field name @data_hash Current data hash
-inputPassportElementErrorSourceDataField field_name:string data_hash:bytes = InputPassportElementErrorSource;
-
-//@description The front side of the document contains an error. The error is considered resolved when the file with the front side of the document changes @file_hash Current hash of the file containing the front side
-inputPassportElementErrorSourceFrontSide file_hash:bytes = InputPassportElementErrorSource;
-
-//@description The reverse side of the document contains an error. The error is considered resolved when the file with the reverse side of the document changes @file_hash Current hash of the file containing the reverse side
-inputPassportElementErrorSourceReverseSide file_hash:bytes = InputPassportElementErrorSource;
-
-//@description The selfie contains an error. The error is considered resolved when the file with the selfie changes @file_hash Current hash of the file containing the selfie
-inputPassportElementErrorSourceSelfie file_hash:bytes = InputPassportElementErrorSource;
-
-//@description One of the files containing the translation of the document contains an error. The error is considered resolved when the file with the translation changes @file_hash Current hash of the file containing the translation
-inputPassportElementErrorSourceTranslationFile file_hash:bytes = InputPassportElementErrorSource;
-
-//@description The translation of the document contains an error. The error is considered resolved when the list of files changes @file_hashes Current hashes of all files with the translation
-inputPassportElementErrorSourceTranslationFiles file_hashes:vector<bytes> = InputPassportElementErrorSource;
-
-//@description The file contains an error. The error is considered resolved when the file changes @file_hash Current hash of the file which has the error
-inputPassportElementErrorSourceFile file_hash:bytes = InputPassportElementErrorSource;
-
-//@description The list of attached files contains an error. The error is considered resolved when the file list changes @file_hashes Current hashes of all attached files
-inputPassportElementErrorSourceFiles file_hashes:vector<bytes> = InputPassportElementErrorSource;
-
-
-//@description Contains the description of an error in a Telegram Passport element; for bots only @type Type of Telegram Passport element that has the error @message Error message @source Error source
-inputPassportElementError type:PassportElementType message:string source:InputPassportElementErrorSource = InputPassportElementError;
-
-
-//@class MessageContent @description Contains the content of a message
-
-//@description A text message
-//@text Text of the message
-//@link_preview A link preview attached to the message; may be null
-//@link_preview_options Options which were used for generation of the link preview; may be null if default options were used
-messageText text:formattedText link_preview:linkPreview link_preview_options:linkPreviewOptions = MessageContent;
-
-//@description An animation message (GIF-style).
-//@animation The animation description
-//@caption Animation caption
-//@show_caption_above_media True, if the caption must be shown above the animation; otherwise, the caption must be shown below the animation
-//@has_spoiler True, if the animation preview must be covered by a spoiler animation
-//@is_secret True, if the animation thumbnail must be blurred and the animation must be shown only while tapped
-messageAnimation animation:animation caption:formattedText show_caption_above_media:Bool has_spoiler:Bool is_secret:Bool = MessageContent;
-
-//@description An audio message @audio The audio description @caption Audio caption
-messageAudio audio:audio caption:formattedText = MessageContent;
-
-//@description A document message (general file) @document The document description @caption Document caption
-messageDocument document:document caption:formattedText = MessageContent;
-
-//@description A message with paid media
-//@star_count Number of Telegram Stars needed to buy access to the media in the message
-//@media Information about the media
-//@caption Media caption
-//@show_caption_above_media True, if the caption must be shown above the media; otherwise, the caption must be shown below the media
-messagePaidMedia star_count:int53 media:vector<PaidMedia> caption:formattedText show_caption_above_media:Bool = MessageContent;
-
-//@description A photo message
-//@photo The photo
-//@caption Photo caption
-//@show_caption_above_media True, if the caption must be shown above the photo; otherwise, the caption must be shown below the photo
-//@has_spoiler True, if the photo preview must be covered by a spoiler animation
-//@is_secret True, if the photo must be blurred and must be shown only while tapped
-messagePhoto photo:photo caption:formattedText show_caption_above_media:Bool has_spoiler:Bool is_secret:Bool = MessageContent;
-
-//@description A sticker message @sticker The sticker description @is_premium True, if premium animation of the sticker must be played
-messageSticker sticker:sticker is_premium:Bool = MessageContent;
-
-//@description A video message
-//@video The video description
-//@alternative_videos Alternative qualities of the video
-//@cover Cover of the video; may be null if none
-//@start_timestamp Timestamp from which the video playing must start, in seconds
-//@caption Video caption
-//@show_caption_above_media True, if the caption must be shown above the video; otherwise, the caption must be shown below the video
-//@has_spoiler True, if the video preview must be covered by a spoiler animation
-//@is_secret True, if the video thumbnail must be blurred and the video must be shown only while tapped
-messageVideo video:video alternative_videos:vector<alternativeVideo> cover:photo start_timestamp:int32 caption:formattedText show_caption_above_media:Bool has_spoiler:Bool is_secret:Bool = MessageContent;
-
-//@description A video note message @video_note The video note description @is_viewed True, if at least one of the recipients has viewed the video note @is_secret True, if the video note thumbnail must be blurred and the video note must be shown only while tapped
-messageVideoNote video_note:videoNote is_viewed:Bool is_secret:Bool = MessageContent;
-
-//@description A voice note message @voice_note The voice note description @caption Voice note caption @is_listened True, if at least one of the recipients has listened to the voice note
-messageVoiceNote voice_note:voiceNote caption:formattedText is_listened:Bool = MessageContent;
-
-//@description A self-destructed photo message
-messageExpiredPhoto = MessageContent;
-
-//@description A self-destructed video message
-messageExpiredVideo = MessageContent;
-
-//@description A self-destructed video note message
-messageExpiredVideoNote = MessageContent;
-
-//@description A self-destructed voice note message
-messageExpiredVoiceNote = MessageContent;
-
-//@description A message with a location
-//@location The location description
-//@live_period Time relative to the message send date, for which the location can be updated, in seconds; if 0x7FFFFFFF, then location can be updated forever
-//@expires_in Left time for which the location can be updated, in seconds. If 0, then the location can't be updated anymore. The update updateMessageContent is not sent when this field changes
-//@heading For live locations, a direction in which the location moves, in degrees; 1-360. If 0 the direction is unknown
-//@proximity_alert_radius For live locations, a maximum distance to another chat member for proximity alerts, in meters (0-100000). 0 if the notification is disabled. Available only to the message sender
-messageLocation location:location live_period:int32 expires_in:int32 heading:int32 proximity_alert_radius:int32 = MessageContent;
-
-//@description A message with information about a venue @venue The venue description
-messageVenue venue:venue = MessageContent;
-
-//@description A message with a user contact @contact The contact description
-messageContact contact:contact = MessageContent;
-
-//@description A message with an animated emoji @animated_emoji The animated emoji @emoji The corresponding emoji
-messageAnimatedEmoji animated_emoji:animatedEmoji emoji:string = MessageContent;
-
-//@description A dice message. The dice value is randomly generated by the server
-//@initial_state The animated stickers with the initial dice animation; may be null if unknown. The update updateMessageContent will be sent when the sticker became known
-//@final_state The animated stickers with the final dice animation; may be null if unknown. The update updateMessageContent will be sent when the sticker became known
-//@emoji Emoji on which the dice throw animation is based
-//@value The dice value. If the value is 0, the dice don't have final state yet
-//@success_animation_frame_number Number of frame after which a success animation like a shower of confetti needs to be shown on updateMessageSendSucceeded
-messageDice initial_state:DiceStickers final_state:DiceStickers emoji:string value:int32 success_animation_frame_number:int32 = MessageContent;
-
-//@description A message with a game @game The game description
-messageGame game:game = MessageContent;
-
-//@description A message with a poll @poll The poll description
-messagePoll poll:poll = MessageContent;
-
-//@description A message with a forwarded story
-//@story_sender_chat_id Identifier of the chat that posted the story
-//@story_id Story identifier
-//@via_mention True, if the story was automatically forwarded because of a mention of the user
-messageStory story_sender_chat_id:int53 story_id:int32 via_mention:Bool = MessageContent;
-
-//@description A message with an invoice from a bot. Use getInternalLink with internalLinkTypeBotStart to share the invoice
-//@product_info Information about the product
-//@currency Currency for the product price
-//@total_amount Product total price in the smallest units of the currency
-//@start_parameter Unique invoice bot start_parameter to be passed to getInternalLink
-//@is_test True, if the invoice is a test invoice
-//@need_shipping_address True, if the shipping address must be specified
-//@receipt_message_id The identifier of the message with the receipt, after the product has been purchased
-//@paid_media Extended media attached to the invoice; may be null if none
-//@paid_media_caption Extended media caption; may be null if none
-messageInvoice product_info:productInfo currency:string total_amount:int53 start_parameter:string is_test:Bool need_shipping_address:Bool receipt_message_id:int53 paid_media:PaidMedia paid_media_caption:formattedText = MessageContent;
-
-//@description A message with information about an ended call @is_video True, if the call was a video call @discard_reason Reason why the call was discarded @duration Call duration, in seconds
-messageCall is_video:Bool discard_reason:CallDiscardReason duration:int32 = MessageContent;
-
-//@description A new video chat was scheduled @group_call_id Identifier of the video chat. The video chat can be received through the method getGroupCall @start_date Point in time (Unix timestamp) when the group call is expected to be started by an administrator
-messageVideoChatScheduled group_call_id:int32 start_date:int32 = MessageContent;
-
-//@description A newly created video chat @group_call_id Identifier of the video chat. The video chat can be received through the method getGroupCall
-messageVideoChatStarted group_call_id:int32 = MessageContent;
-
-//@description A message with information about an ended video chat @duration Call duration, in seconds
-messageVideoChatEnded duration:int32 = MessageContent;
-
-//@description A message with information about an invitation to a video chat @group_call_id Identifier of the video chat. The video chat can be received through the method getGroupCall @user_ids Invited user identifiers
-messageInviteVideoChatParticipants group_call_id:int32 user_ids:vector<int53> = MessageContent;
-
-//@description A newly created basic group @title Title of the basic group @member_user_ids User identifiers of members in the basic group
-messageBasicGroupChatCreate title:string member_user_ids:vector<int53> = MessageContent;
-
-//@description A newly created supergroup or channel @title Title of the supergroup or channel
-messageSupergroupChatCreate title:string = MessageContent;
-
-//@description An updated chat title @title New chat title
-messageChatChangeTitle title:string = MessageContent;
-
-//@description An updated chat photo @photo New chat photo
-messageChatChangePhoto photo:chatPhoto = MessageContent;
-
-//@description A deleted chat photo
-messageChatDeletePhoto = MessageContent;
-
-//@description New chat members were added @member_user_ids User identifiers of the new members
-messageChatAddMembers member_user_ids:vector<int53> = MessageContent;
-
-//@description A new member joined the chat via an invite link
-messageChatJoinByLink = MessageContent;
-
-//@description A new member was accepted to the chat by an administrator
-messageChatJoinByRequest = MessageContent;
-
-//@description A chat member was deleted @user_id User identifier of the deleted chat member
-messageChatDeleteMember user_id:int53 = MessageContent;
-
-//@description A basic group was upgraded to a supergroup and was deactivated as the result @supergroup_id Identifier of the supergroup to which the basic group was upgraded
-messageChatUpgradeTo supergroup_id:int53 = MessageContent;
-
-//@description A supergroup has been created from a basic group @title Title of the newly created supergroup @basic_group_id The identifier of the original basic group
-messageChatUpgradeFrom title:string basic_group_id:int53 = MessageContent;
-
-//@description A message has been pinned @message_id Identifier of the pinned message, can be an identifier of a deleted message or 0
-messagePinMessage message_id:int53 = MessageContent;
-
-//@description A screenshot of a message in the chat has been taken
-messageScreenshotTaken = MessageContent;
-
-//@description A new background was set in the chat
-//@old_background_message_id Identifier of the message with a previously set same background; 0 if none. Can be an identifier of a deleted message
-//@background The new background
-//@only_for_self True, if the background was set only for self
-messageChatSetBackground old_background_message_id:int53 background:chatBackground only_for_self:Bool = MessageContent;
-
-//@description A theme in the chat has been changed @theme_name If non-empty, name of a new theme, set for the chat. Otherwise, chat theme was reset to the default one
-messageChatSetTheme theme_name:string = MessageContent;
-
-//@description The auto-delete or self-destruct timer for messages in the chat has been changed @message_auto_delete_time New value auto-delete or self-destruct time, in seconds; 0 if disabled @from_user_id If not 0, a user identifier, which default setting was automatically applied
-messageChatSetMessageAutoDeleteTime message_auto_delete_time:int32 from_user_id:int53 = MessageContent;
-
-//@description The chat was boosted by the sender of the message @boost_count Number of times the chat was boosted
-messageChatBoost boost_count:int32 = MessageContent;
-
-//@description A forum topic has been created @name Name of the topic @icon Icon of the topic
-messageForumTopicCreated name:string icon:forumTopicIcon = MessageContent;
-
-//@description A forum topic has been edited
-//@name If non-empty, the new name of the topic
-//@edit_icon_custom_emoji_id True, if icon's custom_emoji_id is changed
-//@icon_custom_emoji_id New unique identifier of the custom emoji shown on the topic icon; 0 if none. Must be ignored if edit_icon_custom_emoji_id is false
-messageForumTopicEdited name:string edit_icon_custom_emoji_id:Bool icon_custom_emoji_id:int64 = MessageContent;
-
-//@description A forum topic has been closed or opened @is_closed True, if the topic was closed; otherwise, the topic was reopened
-messageForumTopicIsClosedToggled is_closed:Bool = MessageContent;
-
-//@description A General forum topic has been hidden or unhidden @is_hidden True, if the topic was hidden; otherwise, the topic was unhidden
-messageForumTopicIsHiddenToggled is_hidden:Bool = MessageContent;
-
-//@description A profile photo was suggested to a user in a private chat @photo The suggested chat photo. Use the method setProfilePhoto with inputChatPhotoPrevious to apply the photo
-messageSuggestProfilePhoto photo:chatPhoto = MessageContent;
-
-//@description A non-standard action has happened in the chat @text Message text to be shown in the chat
-messageCustomServiceAction text:string = MessageContent;
-
-//@description A new high score was achieved in a game @game_message_id Identifier of the message with the game, can be an identifier of a deleted message @game_id Identifier of the game; may be different from the games presented in the message with the game @score New score
-messageGameScore game_message_id:int53 game_id:int64 score:int32 = MessageContent;
-
-//@description A payment has been sent to a bot or a business account
-//@invoice_chat_id Identifier of the chat, containing the corresponding invoice message
-//@invoice_message_id Identifier of the message with the corresponding invoice; can be 0 or an identifier of a deleted message
-//@currency Currency for the price of the product
-//@total_amount Total price for the product, in the smallest units of the currency
-//@subscription_until_date Point in time (Unix timestamp) when the subscription will expire; 0 if unknown or the payment isn't recurring
-//@is_recurring True, if this is a recurring payment
-//@is_first_recurring True, if this is the first recurring payment
-//@invoice_name Name of the invoice; may be empty if unknown
-messagePaymentSuccessful invoice_chat_id:int53 invoice_message_id:int53 currency:string total_amount:int53 subscription_until_date:int32 is_recurring:Bool is_first_recurring:Bool invoice_name:string = MessageContent;
-
-//@description A payment has been received by the bot or the business account
-//@currency Currency for price of the product
-//@total_amount Total price for the product, in the smallest units of the currency
-//@subscription_until_date Point in time (Unix timestamp) when the subscription will expire; 0 if unknown or the payment isn't recurring
-//@is_recurring True, if this is a recurring payment
-//@is_first_recurring True, if this is the first recurring payment
-//@invoice_payload Invoice payload
-//@shipping_option_id Identifier of the shipping option chosen by the user; may be empty if not applicable; for bots only
-//@order_info Information about the order; may be null; for bots only
-//@telegram_payment_charge_id Telegram payment identifier
-//@provider_payment_charge_id Provider payment identifier
-messagePaymentSuccessfulBot currency:string total_amount:int53 subscription_until_date:int32 is_recurring:Bool is_first_recurring:Bool invoice_payload:bytes shipping_option_id:string order_info:orderInfo telegram_payment_charge_id:string provider_payment_charge_id:string = MessageContent;
-
-//@description A payment has been refunded
-//@owner_id Identifier of the previous owner of the Telegram Stars that refunds them
-//@currency Currency for the price of the product
-//@total_amount Total price for the product, in the smallest units of the currency
-//@invoice_payload Invoice payload; only for bots
-//@telegram_payment_charge_id Telegram payment identifier
-//@provider_payment_charge_id Provider payment identifier
-messagePaymentRefunded owner_id:MessageSender currency:string total_amount:int53 invoice_payload:bytes telegram_payment_charge_id:string provider_payment_charge_id:string = MessageContent;
-
-//@description Telegram Premium was gifted to a user
-//@gifter_user_id The identifier of a user that gifted Telegram Premium; 0 if the gift was anonymous or is outgoing
-//@receiver_user_id The identifier of a user that received Telegram Premium; 0 if the gift is incoming
-//@text Message added to the gifted Telegram Premium by the sender
-//@currency Currency for the paid amount
-//@amount The paid amount, in the smallest units of the currency
-//@cryptocurrency Cryptocurrency used to pay for the gift; may be empty if none
-//@cryptocurrency_amount The paid amount, in the smallest units of the cryptocurrency; 0 if none
-//@month_count Number of months the Telegram Premium subscription will be active
-//@sticker A sticker to be shown in the message; may be null if unknown
-messageGiftedPremium gifter_user_id:int53 receiver_user_id:int53 text:formattedText currency:string amount:int53 cryptocurrency:string cryptocurrency_amount:int64 month_count:int32 sticker:sticker = MessageContent;
-
-//@description A Telegram Premium gift code was created for the user
-//@creator_id Identifier of a chat or a user that created the gift code; may be null if unknown
-//@text Message added to the gift
-//@is_from_giveaway True, if the gift code was created for a giveaway
-//@is_unclaimed True, if the winner for the corresponding Telegram Premium subscription wasn't chosen
-//@currency Currency for the paid amount; empty if unknown
-//@amount The paid amount, in the smallest units of the currency; 0 if unknown
-//@cryptocurrency Cryptocurrency used to pay for the gift; may be empty if none or unknown
-//@cryptocurrency_amount The paid amount, in the smallest units of the cryptocurrency; 0 if unknown
-//@month_count Number of months the Telegram Premium subscription will be active after code activation
-//@sticker A sticker to be shown in the message; may be null if unknown
-//@code The gift code
-messagePremiumGiftCode creator_id:MessageSender text:formattedText is_from_giveaway:Bool is_unclaimed:Bool currency:string amount:int53 cryptocurrency:string cryptocurrency_amount:int64 month_count:int32 sticker:sticker code:string = MessageContent;
-
-//@description A giveaway was created for the chat. Use telegramPaymentPurposePremiumGiveaway, storePaymentPurposePremiumGiveaway, telegramPaymentPurposeStarGiveaway, or storePaymentPurposeStarGiveaway to create a giveaway
-//@star_count Number of Telegram Stars that will be shared by winners of the giveaway; 0 for Telegram Premium giveaways
-messageGiveawayCreated star_count:int53 = MessageContent;
-
-//@description A giveaway
-//@parameters Giveaway parameters
-//@winner_count Number of users which will receive Telegram Premium subscription gift codes
-//@prize Prize of the giveaway
-//@sticker A sticker to be shown in the message; may be null if unknown
-messageGiveaway parameters:giveawayParameters winner_count:int32 prize:GiveawayPrize sticker:sticker = MessageContent;
-
-//@description A giveaway without public winners has been completed for the chat
-//@giveaway_message_id Identifier of the message with the giveaway; can be 0 if the message was deleted
-//@winner_count Number of winners in the giveaway
-//@is_star_giveaway True, if the giveaway is a Telegram Star giveaway
-//@unclaimed_prize_count Number of undistributed prizes; for Telegram Premium giveaways only
-messageGiveawayCompleted giveaway_message_id:int53 winner_count:int32 is_star_giveaway:Bool unclaimed_prize_count:int32 = MessageContent;
-
-//@description A giveaway with public winners has been completed for the chat
-//@boosted_chat_id Identifier of the supergroup or channel chat, which was automatically boosted by the winners of the giveaway
-//@giveaway_message_id Identifier of the message with the giveaway in the boosted chat
-//@additional_chat_count Number of other chats that participated in the giveaway
-//@actual_winners_selection_date Point in time (Unix timestamp) when the winners were selected. May be bigger than winners selection date specified in parameters of the giveaway
-//@only_new_members True, if only new members of the chats were eligible for the giveaway
-//@was_refunded True, if the giveaway was canceled and was fully refunded
-//@prize Prize of the giveaway
-//@prize_description Additional description of the giveaway prize
-//@winner_count Total number of winners in the giveaway
-//@winner_user_ids Up to 100 user identifiers of the winners of the giveaway
-//@unclaimed_prize_count Number of undistributed prizes; for Telegram Premium giveaways only
-messageGiveawayWinners boosted_chat_id:int53 giveaway_message_id:int53 additional_chat_count:int32 actual_winners_selection_date:int32 only_new_members:Bool was_refunded:Bool prize:GiveawayPrize prize_description:string winner_count:int32 winner_user_ids:vector<int53> unclaimed_prize_count:int32 = MessageContent;
-
-//@description Telegram Stars were gifted to a user
-//@gifter_user_id The identifier of a user that gifted Telegram Stars; 0 if the gift was anonymous or is outgoing
-//@receiver_user_id The identifier of a user that received Telegram Stars; 0 if the gift is incoming
-//@currency Currency for the paid amount
-//@amount The paid amount, in the smallest units of the currency
-//@cryptocurrency Cryptocurrency used to pay for the gift; may be empty if none
-//@cryptocurrency_amount The paid amount, in the smallest units of the cryptocurrency; 0 if none
-//@star_count Number of Telegram Stars that were gifted
-//@transaction_id Identifier of the transaction for Telegram Stars purchase; for receiver only
-//@sticker A sticker to be shown in the message; may be null if unknown
-messageGiftedStars gifter_user_id:int53 receiver_user_id:int53 currency:string amount:int53 cryptocurrency:string cryptocurrency_amount:int64 star_count:int53 transaction_id:string sticker:sticker = MessageContent;
-
-//@description A Telegram Stars were received by the current user from a giveaway
-//@star_count Number of Telegram Stars that were received
-//@transaction_id Identifier of the transaction for Telegram Stars credit
-//@boosted_chat_id Identifier of the supergroup or channel chat, which was automatically boosted by the winners of the giveaway
-//@giveaway_message_id Identifier of the message with the giveaway in the boosted chat; can be 0 if the message was deleted
-//@is_unclaimed True, if the corresponding winner wasn't chosen and the Telegram Stars were received by the owner of the boosted chat
-//@sticker A sticker to be shown in the message; may be null if unknown
-messageGiveawayPrizeStars star_count:int53 transaction_id:string boosted_chat_id:int53 giveaway_message_id:int53 is_unclaimed:Bool sticker:sticker = MessageContent;
-
-//@description A regular gift was received or sent by the current user, or the current user was notified about a channel gift
-//@gift The gift
-//@sender_id Sender of the gift
-//@received_gift_id Unique identifier of the received gift for the current user; only for the receiver of the gift
-//@text Message added to the gift
-//@sell_star_count Number of Telegram Stars that can be claimed by the receiver instead of the regular gift; 0 if the gift can't be sold by the receiver
-//@prepaid_upgrade_star_count Number of Telegram Stars that were paid by the sender for the ability to upgrade the gift
-//@is_private True, if the sender and gift text are shown only to the gift receiver; otherwise, everyone will be able to see them
-//@is_saved True, if the gift is displayed on the user's or the channel's profile page; only for the receiver of the gift
-//@can_be_upgraded True, if the gift can be upgraded to a unique gift; only for the receiver of the gift
-//@was_converted True, if the gift was converted to Telegram Stars; only for the receiver of the gift
-//@was_upgraded True, if the gift was upgraded to a unique gift
-//@was_refunded True, if the gift was refunded and isn't available anymore
-//@upgraded_received_gift_id Identifier of the corresponding upgraded gift; may be empty if unknown. Use getReceivedGift to get information about the gift
-messageGift gift:gift sender_id:MessageSender received_gift_id:string text:formattedText sell_star_count:int53 prepaid_upgrade_star_count:int53 is_private:Bool is_saved:Bool can_be_upgraded:Bool was_converted:Bool was_upgraded:Bool was_refunded:Bool upgraded_received_gift_id:string = MessageContent;
-
-//@description An upgraded gift was received or sent by the current user, or the current user was notified about a channel gift
-//@gift The gift
-//@sender_id Sender of the gift; may be null for anonymous gifts
-//@received_gift_id Unique identifier of the received gift for the current user; only for the receiver of the gift
-//@is_upgrade True, if the gift was obtained by upgrading of a previously received gift; otherwise, this is a transferred gift
-//@is_saved True, if the gift is displayed on the user's or the channel's profile page; only for the receiver of the gift
-//@can_be_transferred True, if the gift can be transferred to another owner; only for the receiver of the gift
-//@was_transferred True, if the gift was transferred to another owner; only for the receiver of the gift
-//@transfer_star_count Number of Telegram Stars that must be paid to transfer the upgraded gift; only for the receiver of the gift
-//@export_date Point in time (Unix timestamp) when the gift can be transferred to the TON blockchain as an NFT; 0 if NFT export isn't possible; only for the receiver of the gift
-messageUpgradedGift gift:upgradedGift sender_id:MessageSender received_gift_id:string is_upgrade:Bool is_saved:Bool can_be_transferred:Bool was_transferred:Bool transfer_star_count:int53 export_date:int32 = MessageContent;
-
-//@description A gift which purchase, upgrade or transfer were refunded
-//@gift The gift
-//@sender_id Sender of the gift
-//@is_upgrade True, if the gift was obtained by upgrading of a previously received gift
-messageRefundedUpgradedGift gift:gift sender_id:MessageSender is_upgrade:Bool = MessageContent;
-
-//@description Paid messages were refunded @message_count The number of refunded messages @star_count The number of refunded Telegram Stars
-messagePaidMessagesRefunded message_count:int32 star_count:int53 = MessageContent;
-
-//@description A price for paid messages was changed in the supergroup chat @paid_message_star_count The new number of Telegram Stars that must be paid by non-administrator users of the supergroup chat for each sent message
-messagePaidMessagePriceChanged paid_message_star_count:int53 = MessageContent;
-
-//@description A contact has registered with Telegram
-messageContactRegistered = MessageContent;
-
-//@description The current user shared users, which were requested by the bot @users The shared users @button_id Identifier of the keyboard button with the request
-messageUsersShared users:vector<sharedUser> button_id:int32 = MessageContent;
-
-//@description The current user shared a chat, which was requested by the bot @chat The shared chat @button_id Identifier of the keyboard button with the request
-messageChatShared chat:sharedChat button_id:int32 = MessageContent;
-
-//@description The user allowed the bot to send messages @reason The reason why the bot was allowed to write messages
-messageBotWriteAccessAllowed reason:BotWriteAccessAllowReason = MessageContent;
-
-//@description Data from a Web App has been sent to a bot @button_text Text of the keyboardButtonTypeWebApp button, which opened the Web App
-messageWebAppDataSent button_text:string = MessageContent;
-
-//@description Data from a Web App has been received; for bots only @button_text Text of the keyboardButtonTypeWebApp button, which opened the Web App @data The data
-messageWebAppDataReceived button_text:string data:string = MessageContent;
-
-//@description Telegram Passport data has been sent to a bot @types List of Telegram Passport element types sent
-messagePassportDataSent types:vector<PassportElementType> = MessageContent;
-
-//@description Telegram Passport data has been received; for bots only @elements List of received Telegram Passport elements @credentials Encrypted data credentials
-messagePassportDataReceived elements:vector<encryptedPassportElement> credentials:encryptedCredentials = MessageContent;
-
-//@description A user in the chat came within proximity alert range @traveler_id The identifier of a user or chat that triggered the proximity alert @watcher_id The identifier of a user or chat that subscribed for the proximity alert @distance The distance between the users
-messageProximityAlertTriggered traveler_id:MessageSender watcher_id:MessageSender distance:int32 = MessageContent;
-
-//@description A message content that is not supported in the current TDLib version
-messageUnsupported = MessageContent;
-
-
-//@class TextEntityType @description Represents a part of the text which must be formatted differently
-
-//@description A mention of a user, a supergroup, or a channel by their username
-textEntityTypeMention = TextEntityType;
-
-//@description A hashtag text, beginning with "#" and optionally containing a chat username at the end
-textEntityTypeHashtag = TextEntityType;
-
-//@description A cashtag text, beginning with "$", consisting of capital English letters (e.g., "$USD"), and optionally containing a chat username at the end
-textEntityTypeCashtag = TextEntityType;
-
-//@description A bot command, beginning with "/"
-textEntityTypeBotCommand = TextEntityType;
-
-//@description An HTTP URL
-textEntityTypeUrl = TextEntityType;
-
-//@description An email address
-textEntityTypeEmailAddress = TextEntityType;
-
-//@description A phone number
-textEntityTypePhoneNumber = TextEntityType;
-
-//@description A bank card number. The getBankCardInfo method can be used to get information about the bank card
-textEntityTypeBankCardNumber = TextEntityType;
-
-//@description A bold text
-textEntityTypeBold = TextEntityType;
-
-//@description An italic text
-textEntityTypeItalic = TextEntityType;
-
-//@description An underlined text
-textEntityTypeUnderline = TextEntityType;
-
-//@description A strikethrough text
-textEntityTypeStrikethrough = TextEntityType;
-
-//@description A spoiler text
-textEntityTypeSpoiler = TextEntityType;
-
-//@description Text that must be formatted as if inside a code HTML tag
-textEntityTypeCode = TextEntityType;
-
-//@description Text that must be formatted as if inside a pre HTML tag
-textEntityTypePre = TextEntityType;
-
-//@description Text that must be formatted as if inside pre, and code HTML tags @language Programming language of the code; as defined by the sender
-textEntityTypePreCode language:string = TextEntityType;
-
-//@description Text that must be formatted as if inside a blockquote HTML tag; not supported in secret chats
-textEntityTypeBlockQuote = TextEntityType;
-
-//@description Text that must be formatted as if inside a blockquote HTML tag and collapsed by default to 3 lines with the ability to show full text; not supported in secret chats
-textEntityTypeExpandableBlockQuote = TextEntityType;
-
-//@description A text description shown instead of a raw URL @url HTTP or tg:// URL to be opened when the link is clicked
-textEntityTypeTextUrl url:string = TextEntityType;
-
-//@description A text shows instead of a raw mention of the user (e.g., when the user has no username) @user_id Identifier of the mentioned user
-textEntityTypeMentionName user_id:int53 = TextEntityType;
-
-//@description A custom emoji. The text behind a custom emoji must be an emoji. Only premium users can use premium custom emoji @custom_emoji_id Unique identifier of the custom emoji
-textEntityTypeCustomEmoji custom_emoji_id:int64 = TextEntityType;
-
-//@description A media timestamp @media_timestamp Timestamp from which a video/audio/video note/voice note/story playing must start, in seconds. The media can be in the content or the link preview of the current message, or in the same places in the replied message
-textEntityTypeMediaTimestamp media_timestamp:int32 = TextEntityType;
-
-
-//@description A thumbnail to be sent along with a file; must be in JPEG or WEBP format for stickers, and less than 200 KB in size
-//@thumbnail Thumbnail file to send. Sending thumbnails by file_id is currently not supported
-//@width Thumbnail width, usually shouldn't exceed 320. Use 0 if unknown
-//@height Thumbnail height, usually shouldn't exceed 320. Use 0 if unknown
-inputThumbnail thumbnail:InputFile width:int32 height:int32 = InputThumbnail;
-
-
-//@class InputPaidMediaType @description Describes type of paid media to sent
-
-//@description The media is a photo. The photo must be at most 10 MB in size. The photo's width and height must not exceed 10000 in total. Width and height ratio must be at most 20
-inputPaidMediaTypePhoto = InputPaidMediaType;
-
-//@description The media is a video
-//@cover Cover of the video; pass null to skip cover uploading
-//@start_timestamp Timestamp from which the video playing must start, in seconds
-//@duration Duration of the video, in seconds
-//@supports_streaming True, if the video is expected to be streamed
-inputPaidMediaTypeVideo cover:InputFile start_timestamp:int32 duration:int32 supports_streaming:Bool = InputPaidMediaType;
-
-
-//@description Describes a paid media to be sent
-//@type Type of the media
-//@media Photo or video to be sent
-//@thumbnail Media thumbnail; pass null to skip thumbnail uploading
-//@added_sticker_file_ids File identifiers of the stickers added to the media, if applicable
-//@width Media width
-//@height Media height
-inputPaidMedia type:InputPaidMediaType media:InputFile thumbnail:inputThumbnail added_sticker_file_ids:vector<int32> width:int32 height:int32 = InputPaidMedia;
-
-
-//@class MessageSchedulingState @description Contains information about the time when a scheduled message will be sent
-
-//@description The message will be sent at the specified date @send_date Point in time (Unix timestamp) when the message will be sent. The date must be within 367 days in the future
-messageSchedulingStateSendAtDate send_date:int32 = MessageSchedulingState;
-
-//@description The message will be sent when the other user is online. Applicable to private chats only and when the exact online status of the other user is known
-messageSchedulingStateSendWhenOnline = MessageSchedulingState;
-
-//@description The message will be sent when the video in the message is converted and optimized; can be used only by the server
-//@send_date Approximate point in time (Unix timestamp) when the message is expected to be sent
-messageSchedulingStateSendWhenVideoProcessed send_date:int32 = MessageSchedulingState;
-
-
-//@class MessageSelfDestructType @description Describes when a message will be self-destructed
-
-//@description The message will be self-destructed in the specified time after its content was opened @self_destruct_time The message's self-destruct time, in seconds; must be between 0 and 60 in private chats
-messageSelfDestructTypeTimer self_destruct_time:int32 = MessageSelfDestructType;
-
-//@description The message can be opened only once and will be self-destructed once closed
-messageSelfDestructTypeImmediately = MessageSelfDestructType;
-
-
-//@description Options to be used when a message is sent
-//@disable_notification Pass true to disable notification for the message
-//@from_background Pass true if the message is sent from the background
-//@protect_content Pass true if the content of the message must be protected from forwarding and saving; for bots only
-//@allow_paid_broadcast Pass true to allow the message to ignore regular broadcast limits for a small fee; for bots only
-//@paid_message_star_count The number of Telegram Stars the user agreed to pay to send the messages
-//@update_order_of_installed_sticker_sets Pass true if the user explicitly chosen a sticker or a custom emoji from an installed sticker set; applicable only to sendMessage and sendMessageAlbum
-//@scheduling_state Message scheduling state; pass null to send message immediately. Messages sent to a secret chat, to a chat with paid messages, live location messages and self-destructing messages can't be scheduled
-//@effect_id Identifier of the effect to apply to the message; pass 0 if none; applicable only to sendMessage and sendMessageAlbum in private chats
-//@sending_id Non-persistent identifier, which will be returned back in messageSendingStatePending object and can be used to match sent messages and corresponding updateNewMessage updates
-//@only_preview Pass true to get a fake message instead of actually sending them
-messageSendOptions disable_notification:Bool from_background:Bool protect_content:Bool allow_paid_broadcast:Bool paid_message_star_count:int53 update_order_of_installed_sticker_sets:Bool scheduling_state:MessageSchedulingState effect_id:int64 sending_id:int32 only_preview:Bool = MessageSendOptions;
-
-//@description Options to be used when a message content is copied without reference to the original sender. Service messages, messages with messageInvoice, messagePaidMedia, messageGiveaway, or messageGiveawayWinners content can't be copied
-//@send_copy True, if content of the message needs to be copied without reference to the original sender. Always true if the message is forwarded to a secret chat or is local.
-//-Use messageProperties.can_be_saved and messageProperties.can_be_copied_to_secret_chat to check whether the message is suitable
-//@replace_caption True, if media caption of the message copy needs to be replaced. Ignored if send_copy is false
-//@new_caption New message caption; pass null to copy message without caption. Ignored if replace_caption is false
-//@new_show_caption_above_media True, if new caption must be shown above the media; otherwise, new caption must be shown below the media; not supported in secret chats. Ignored if replace_caption is false
-messageCopyOptions send_copy:Bool replace_caption:Bool new_caption:formattedText new_show_caption_above_media:Bool = MessageCopyOptions;
-
-
-//@class InputMessageContent @description The content of a message to send
-
-//@description A text message
-//@text Formatted text to be sent; 0-getOption("message_text_length_max") characters. Only Bold, Italic, Underline, Strikethrough, Spoiler, CustomEmoji, BlockQuote, ExpandableBlockQuote,
-//-Code, Pre, PreCode, TextUrl and MentionName entities are allowed to be specified manually
-//@link_preview_options Options to be used for generation of a link preview; may be null if none; pass null to use default link preview options
-//@clear_draft True, if a chat message draft must be deleted
-inputMessageText text:formattedText link_preview_options:linkPreviewOptions clear_draft:Bool = InputMessageContent;
-
-//@description An animation message (GIF-style).
-//@animation Animation file to be sent
-//@thumbnail Animation thumbnail; pass null to skip thumbnail uploading
-//@added_sticker_file_ids File identifiers of the stickers added to the animation, if applicable
-//@duration Duration of the animation, in seconds
-//@width Width of the animation; may be replaced by the server
-//@height Height of the animation; may be replaced by the server
-//@caption Animation caption; pass null to use an empty caption; 0-getOption("message_caption_length_max") characters
-//@show_caption_above_media True, if the caption must be shown above the animation; otherwise, the caption must be shown below the animation; not supported in secret chats
-//@has_spoiler True, if the animation preview must be covered by a spoiler animation; not supported in secret chats
-inputMessageAnimation animation:InputFile thumbnail:inputThumbnail added_sticker_file_ids:vector<int32> duration:int32 width:int32 height:int32 caption:formattedText show_caption_above_media:Bool has_spoiler:Bool = InputMessageContent;
-
-//@description An audio message
-//@audio Audio file to be sent
-//@album_cover_thumbnail Thumbnail of the cover for the album; pass null to skip thumbnail uploading
-//@duration Duration of the audio, in seconds; may be replaced by the server
-//@title Title of the audio; 0-64 characters; may be replaced by the server
-//@performer Performer of the audio; 0-64 characters, may be replaced by the server
-//@caption Audio caption; pass null to use an empty caption; 0-getOption("message_caption_length_max") characters
-inputMessageAudio audio:InputFile album_cover_thumbnail:inputThumbnail duration:int32 title:string performer:string caption:formattedText = InputMessageContent;
-
-//@description A document message (general file)
-//@document Document to be sent
-//@thumbnail Document thumbnail; pass null to skip thumbnail uploading
-//@disable_content_type_detection Pass true to disable automatic file type detection and send the document as a file. Always true for files sent to secret chats
-//@caption Document caption; pass null to use an empty caption; 0-getOption("message_caption_length_max") characters
-inputMessageDocument document:InputFile thumbnail:inputThumbnail disable_content_type_detection:Bool caption:formattedText = InputMessageContent;
-
-//@description A message with paid media; can be used only in channel chats with supergroupFullInfo.has_paid_media_allowed
-//@star_count The number of Telegram Stars that must be paid to see the media; 1-getOption("paid_media_message_star_count_max")
-//@paid_media The content of the paid media
-//@caption Message caption; pass null to use an empty caption; 0-getOption("message_caption_length_max") characters
-//@show_caption_above_media True, if the caption must be shown above the media; otherwise, the caption must be shown below the media; not supported in secret chats
-//@payload Bot-provided data for the paid media; bots only
-inputMessagePaidMedia star_count:int53 paid_media:vector<inputPaidMedia> caption:formattedText show_caption_above_media:Bool payload:string = InputMessageContent;
-
-//@description A photo message
-//@photo Photo to send. The photo must be at most 10 MB in size. The photo's width and height must not exceed 10000 in total. Width and height ratio must be at most 20
-//@thumbnail Photo thumbnail to be sent; pass null to skip thumbnail uploading. The thumbnail is sent to the other party only in secret chats
-//@added_sticker_file_ids File identifiers of the stickers added to the photo, if applicable
-//@width Photo width
-//@height Photo height
-//@caption Photo caption; pass null to use an empty caption; 0-getOption("message_caption_length_max") characters
-//@show_caption_above_media True, if the caption must be shown above the photo; otherwise, the caption must be shown below the photo; not supported in secret chats
-//@self_destruct_type Photo self-destruct type; pass null if none; private chats only
-//@has_spoiler True, if the photo preview must be covered by a spoiler animation; not supported in secret chats
-inputMessagePhoto photo:InputFile thumbnail:inputThumbnail added_sticker_file_ids:vector<int32> width:int32 height:int32 caption:formattedText show_caption_above_media:Bool self_destruct_type:MessageSelfDestructType has_spoiler:Bool = InputMessageContent;
-
-//@description A sticker message
-//@sticker Sticker to be sent
-//@thumbnail Sticker thumbnail; pass null to skip thumbnail uploading
-//@width Sticker width
-//@height Sticker height
-//@emoji Emoji used to choose the sticker
-inputMessageSticker sticker:InputFile thumbnail:inputThumbnail width:int32 height:int32 emoji:string = InputMessageContent;
-
-//@description A video message
-//@video Video to be sent. The video is expected to be re-encoded to MPEG4 format with H.264 codec by the sender
-//@thumbnail Video thumbnail; pass null to skip thumbnail uploading
-//@cover Cover of the video; pass null to skip cover uploading; not supported in secret chats and for self-destructing messages
-//@start_timestamp Timestamp from which the video playing must start, in seconds
-//@added_sticker_file_ids File identifiers of the stickers added to the video, if applicable
-//@duration Duration of the video, in seconds
-//@width Video width
-//@height Video height
-//@supports_streaming True, if the video is expected to be streamed
-//@caption Video caption; pass null to use an empty caption; 0-getOption("message_caption_length_max") characters
-//@show_caption_above_media True, if the caption must be shown above the video; otherwise, the caption must be shown below the video; not supported in secret chats
-//@self_destruct_type Video self-destruct type; pass null if none; private chats only
-//@has_spoiler True, if the video preview must be covered by a spoiler animation; not supported in secret chats
-inputMessageVideo video:InputFile thumbnail:inputThumbnail cover:InputFile start_timestamp:int32 added_sticker_file_ids:vector<int32> duration:int32 width:int32 height:int32 supports_streaming:Bool caption:formattedText show_caption_above_media:Bool self_destruct_type:MessageSelfDestructType has_spoiler:Bool = InputMessageContent;
-
-//@description A video note message
-//@video_note Video note to be sent. The video is expected to be encoded to MPEG4 format with H.264 codec and have no data outside of the visible circle
-//@thumbnail Video thumbnail; may be null if empty; pass null to skip thumbnail uploading
-//@duration Duration of the video, in seconds; 0-60
-//@length Video width and height; must be positive and not greater than 640
-//@self_destruct_type Video note self-destruct type; may be null if none; pass null if none; private chats only
-inputMessageVideoNote video_note:InputFile thumbnail:inputThumbnail duration:int32 length:int32 self_destruct_type:MessageSelfDestructType = InputMessageContent;
-
-//@description A voice note message
-//@voice_note Voice note to be sent. The voice note must be encoded with the Opus codec and stored inside an OGG container with a single audio channel, or be in MP3 or M4A format as regular audio
-//@duration Duration of the voice note, in seconds
-//@waveform Waveform representation of the voice note in 5-bit format
-//@caption Voice note caption; may be null if empty; pass null to use an empty caption; 0-getOption("message_caption_length_max") characters
-//@self_destruct_type Voice note self-destruct type; may be null if none; pass null if none; private chats only
-inputMessageVoiceNote voice_note:InputFile duration:int32 waveform:bytes caption:formattedText self_destruct_type:MessageSelfDestructType = InputMessageContent;
-
-//@description A message with a location
-//@location Location to be sent
-//@live_period Period for which the location can be updated, in seconds; must be between 60 and 86400 for a temporary live location, 0x7FFFFFFF for permanent live location, and 0 otherwise
-//@heading For live locations, a direction in which the location moves, in degrees; 1-360. Pass 0 if unknown
-//@proximity_alert_radius For live locations, a maximum distance to another chat member for proximity alerts, in meters (0-100000). Pass 0 if the notification is disabled. Can't be enabled in channels and Saved Messages
-inputMessageLocation location:location live_period:int32 heading:int32 proximity_alert_radius:int32 = InputMessageContent;
-
-//@description A message with information about a venue @venue Venue to send
-inputMessageVenue venue:venue = InputMessageContent;
-
-//@description A message containing a user contact @contact Contact to send
-inputMessageContact contact:contact = InputMessageContent;
-
-//@description A dice message @emoji Emoji on which the dice throw animation is based @clear_draft True, if the chat message draft must be deleted
-inputMessageDice emoji:string clear_draft:Bool = InputMessageContent;
-
-//@description A message with a game; not supported for channels or secret chats @bot_user_id User identifier of the bot that owns the game @game_short_name Short name of the game
-inputMessageGame bot_user_id:int53 game_short_name:string = InputMessageContent;
-
-//@description A message with an invoice; can be used only by bots
-//@invoice Invoice
-//@title Product title; 1-32 characters
-//@param_description Product description; 0-255 characters
-//@photo_url Product photo URL; optional
-//@photo_size Product photo size
-//@photo_width Product photo width
-//@photo_height Product photo height
-//@payload The invoice payload
-//@provider_token Payment provider token; may be empty for payments in Telegram Stars
-//@provider_data JSON-encoded data about the invoice, which will be shared with the payment provider
-//@start_parameter Unique invoice bot deep link parameter for the generation of this invoice. If empty, it would be possible to pay directly from forwards of the invoice message
-//@paid_media The content of paid media attached to the invoice; pass null if none
-//@paid_media_caption Paid media caption; pass null to use an empty caption; 0-getOption("message_caption_length_max") characters
-inputMessageInvoice invoice:invoice title:string description:string photo_url:string photo_size:int32 photo_width:int32 photo_height:int32 payload:bytes provider_token:string provider_data:string start_parameter:string paid_media:inputPaidMedia paid_media_caption:formattedText = InputMessageContent;
-
-//@description A message with a poll. Polls can't be sent to secret chats. Polls can be sent only to a private chat with a bot
-//@question Poll question; 1-255 characters (up to 300 characters for bots). Only custom emoji entities are allowed to be added and only by Premium users
-//@options List of poll answer options, 2-10 strings 1-100 characters each. Only custom emoji entities are allowed to be added and only by Premium users
-//@is_anonymous True, if the poll voters are anonymous. Non-anonymous polls can't be sent or forwarded to channels
-//@type Type of the poll
-//@open_period Amount of time the poll will be active after creation, in seconds; for bots only
-//@close_date Point in time (Unix timestamp) when the poll will automatically be closed; for bots only
-//@is_closed True, if the poll needs to be sent already closed; for bots only
-inputMessagePoll question:formattedText options:vector<formattedText> is_anonymous:Bool type:PollType open_period:int32 close_date:int32 is_closed:Bool = InputMessageContent;
-
-//@description A message with a forwarded story. Stories can't be sent to secret chats. A story can be forwarded only if story.can_be_forwarded
-//@story_sender_chat_id Identifier of the chat that posted the story
-//@story_id Story identifier
-inputMessageStory story_sender_chat_id:int53 story_id:int32 = InputMessageContent;
-
-//@description A forwarded message
-//@from_chat_id Identifier for the chat this forwarded message came from
-//@message_id Identifier of the message to forward. A message can be forwarded only if messageProperties.can_be_forwarded
-//@in_game_share Pass true if a game message is being shared from a launched game; applies only to game messages
-//@replace_video_start_timestamp Pass true to replace video start timestamp in the forwarded message
-//@new_video_start_timestamp The new video start timestamp; ignored if replace_video_start_timestamp == false
-//@copy_options Options to be used to copy content of the message without reference to the original sender; pass null to forward the message as usual
-inputMessageForwarded from_chat_id:int53 message_id:int53 in_game_share:Bool replace_video_start_timestamp:Bool new_video_start_timestamp:int32 copy_options:messageCopyOptions = InputMessageContent;
-
-
-//@description Contains properties of a message and describes actions that can be done with the message right now
-//@can_be_copied_to_secret_chat True, if content of the message can be copied to a secret chat using inputMessageForwarded or forwardMessages with copy options
-//@can_be_deleted_only_for_self True, if the message can be deleted only for the current user while other users will continue to see it using the method deleteMessages with revoke == false
-//@can_be_deleted_for_all_users True, if the message can be deleted for all users using the method deleteMessages with revoke == true
-//@can_be_edited True, if the message can be edited using the methods editMessageText, editMessageCaption, or editMessageReplyMarkup.
-//-For live location and poll messages this fields shows whether editMessageLiveLocation or stopPoll can be used with this message
-//@can_be_forwarded True, if the message can be forwarded using inputMessageForwarded or forwardMessages
-//@can_be_paid True, if the message can be paid using inputInvoiceMessage
-//@can_be_pinned True, if the message can be pinned or unpinned in the chat using pinChatMessage or unpinChatMessage
-//@can_be_replied True, if the message can be replied in the same chat and forum topic using inputMessageReplyToMessage
-//@can_be_replied_in_another_chat True, if the message can be replied in another chat or forum topic using inputMessageReplyToExternalMessage
-//@can_be_saved True, if content of the message can be saved locally or copied using inputMessageForwarded or forwardMessages with copy options
-//@can_be_shared_in_story True, if the message can be shared in a story using inputStoryAreaTypeMessage
-//@can_edit_media True, if the message can be edited using the method editMessageMedia
-//@can_edit_scheduling_state True, if scheduling state of the message can be edited
-//@can_get_embedding_code True, if code for message embedding can be received using getMessageEmbeddingCode
-//@can_get_link True, if a link can be generated for the message using getMessageLink
-//@can_get_media_timestamp_links True, if media timestamp links can be generated for media timestamp entities in the message text, caption or link preview description using getMessageLink
-//@can_get_message_thread True, if information about the message thread is available through getMessageThread and getMessageThreadHistory
-//@can_get_read_date True, if read date of the message can be received through getMessageReadDate
-//@can_get_statistics True, if message statistics are available through getMessageStatistics and message forwards can be received using getMessagePublicForwards
-//@can_get_viewers True, if chat members already viewed the message can be received through getMessageViewers
-//@can_recognize_speech True, if speech can be recognized for the message through recognizeSpeech
-//@can_report_chat True, if the message can be reported using reportChat
-//@can_report_reactions True, if reactions on the message can be reported through reportMessageReactions
-//@can_report_supergroup_spam True, if the message can be reported using reportSupergroupSpam
-//@can_set_fact_check True, if fact check for the message can be changed through setMessageFactCheck
-//@need_show_statistics True, if message statistics must be available from context menu of the message
-messageProperties can_be_copied_to_secret_chat:Bool can_be_deleted_only_for_self:Bool can_be_deleted_for_all_users:Bool can_be_edited:Bool can_be_forwarded:Bool can_be_paid:Bool can_be_pinned:Bool can_be_replied:Bool can_be_replied_in_another_chat:Bool can_be_saved:Bool can_be_shared_in_story:Bool can_edit_media:Bool can_edit_scheduling_state:Bool can_get_embedding_code:Bool can_get_link:Bool can_get_media_timestamp_links:Bool can_get_message_thread:Bool can_get_read_date:Bool can_get_statistics:Bool can_get_viewers:Bool can_recognize_speech:Bool can_report_chat:Bool can_report_reactions:Bool can_report_supergroup_spam:Bool can_set_fact_check:Bool need_show_statistics:Bool = MessageProperties;
-
-
-//@class SearchMessagesFilter @description Represents a filter for message search results
-
-//@description Returns all found messages, no filter is applied
-searchMessagesFilterEmpty = SearchMessagesFilter;
-
-//@description Returns only animation messages
-searchMessagesFilterAnimation = SearchMessagesFilter;
-
-//@description Returns only audio messages
-searchMessagesFilterAudio = SearchMessagesFilter;
-
-//@description Returns only document messages
-searchMessagesFilterDocument = SearchMessagesFilter;
-
-//@description Returns only photo messages
-searchMessagesFilterPhoto = SearchMessagesFilter;
-
-//@description Returns only video messages
-searchMessagesFilterVideo = SearchMessagesFilter;
-
-//@description Returns only voice note messages
-searchMessagesFilterVoiceNote = SearchMessagesFilter;
-
-//@description Returns only photo and video messages
-searchMessagesFilterPhotoAndVideo = SearchMessagesFilter;
-
-//@description Returns only messages containing URLs
-searchMessagesFilterUrl = SearchMessagesFilter;
-
-//@description Returns only messages containing chat photos
-searchMessagesFilterChatPhoto = SearchMessagesFilter;
-
-//@description Returns only video note messages
-searchMessagesFilterVideoNote = SearchMessagesFilter;
-
-//@description Returns only voice and video note messages
-searchMessagesFilterVoiceAndVideoNote = SearchMessagesFilter;
-
-//@description Returns only messages with mentions of the current user, or messages that are replies to their messages
-searchMessagesFilterMention = SearchMessagesFilter;
-
-//@description Returns only messages with unread mentions of the current user, or messages that are replies to their messages. When using this filter the results can't be additionally filtered by a query, a message thread or by the sending user
-searchMessagesFilterUnreadMention = SearchMessagesFilter;
-
-//@description Returns only messages with unread reactions for the current user. When using this filter the results can't be additionally filtered by a query, a message thread or by the sending user
-searchMessagesFilterUnreadReaction = SearchMessagesFilter;
-
-//@description Returns only failed to send messages. This filter can be used only if the message database is used
-searchMessagesFilterFailedToSend = SearchMessagesFilter;
-
-//@description Returns only pinned messages
-searchMessagesFilterPinned = SearchMessagesFilter;
-
-
-//@class SearchMessagesChatTypeFilter @description Represents a filter for type of the chats in which to search messages
-
-//@description Returns only messages in private chats
-searchMessagesChatTypeFilterPrivate = SearchMessagesChatTypeFilter;
-
-//@description Returns only messages in basic group and supergroup chats
-searchMessagesChatTypeFilterGroup = SearchMessagesChatTypeFilter;
-
-//@description Returns only messages in channel chats
-searchMessagesChatTypeFilterChannel = SearchMessagesChatTypeFilter;
-
-
-//@class ChatAction @description Describes the different types of activity in a chat
-
-//@description The user is typing a message
-chatActionTyping = ChatAction;
-
-//@description The user is recording a video
-chatActionRecordingVideo = ChatAction;
-
-//@description The user is uploading a video @progress Upload progress, as a percentage
-chatActionUploadingVideo progress:int32 = ChatAction;
-
-//@description The user is recording a voice note
-chatActionRecordingVoiceNote = ChatAction;
-
-//@description The user is uploading a voice note @progress Upload progress, as a percentage
-chatActionUploadingVoiceNote progress:int32 = ChatAction;
-
-//@description The user is uploading a photo @progress Upload progress, as a percentage
-chatActionUploadingPhoto progress:int32 = ChatAction;
-
-//@description The user is uploading a document @progress Upload progress, as a percentage
-chatActionUploadingDocument progress:int32 = ChatAction;
-
-//@description The user is picking a sticker to send
-chatActionChoosingSticker = ChatAction;
-
-//@description The user is picking a location or venue to send
-chatActionChoosingLocation = ChatAction;
-
-//@description The user is picking a contact to send
-chatActionChoosingContact = ChatAction;
-
-//@description The user has started to play a game
-chatActionStartPlayingGame = ChatAction;
-
-//@description The user is recording a video note
-chatActionRecordingVideoNote = ChatAction;
-
-//@description The user is uploading a video note @progress Upload progress, as a percentage
-chatActionUploadingVideoNote progress:int32 = ChatAction;
-
-//@description The user is watching animations sent by the other party by clicking on an animated emoji @emoji The animated emoji
-chatActionWatchingAnimations emoji:string = ChatAction;
-
-//@description The user has canceled the previous action
-chatActionCancel = ChatAction;
-
-
-//@class UserStatus @description Describes the last time the user was online
-
-//@description The user's status has never been changed
-userStatusEmpty = UserStatus;
-
-//@description The user is online @expires Point in time (Unix timestamp) when the user's online status will expire
-userStatusOnline expires:int32 = UserStatus;
-
-//@description The user is offline @was_online Point in time (Unix timestamp) when the user was last online
-userStatusOffline was_online:int32 = UserStatus;
-
-//@description The user was online recently @by_my_privacy_settings Exact user's status is hidden because the current user enabled userPrivacySettingShowStatus privacy setting for the user and has no Telegram Premium
-userStatusRecently by_my_privacy_settings:Bool = UserStatus;
-
-//@description The user is offline, but was online last week @by_my_privacy_settings Exact user's status is hidden because the current user enabled userPrivacySettingShowStatus privacy setting for the user and has no Telegram Premium
-userStatusLastWeek by_my_privacy_settings:Bool = UserStatus;
-
-//@description The user is offline, but was online last month @by_my_privacy_settings Exact user's status is hidden because the current user enabled userPrivacySettingShowStatus privacy setting for the user and has no Telegram Premium
-userStatusLastMonth by_my_privacy_settings:Bool = UserStatus;
-
-
-//@description Represents an emoji with its keyword @emoji The emoji @keyword The keyword
-emojiKeyword emoji:string keyword:string = EmojiKeyword;
-
-//@description Represents a list of emojis with their keywords @emoji_keywords List of emojis with their keywords
-emojiKeywords emoji_keywords:vector<emojiKeyword> = EmojiKeywords;
-
-//@description Represents a list of stickers @stickers List of stickers
-stickers stickers:vector<sticker> = Stickers;
-
-//@description Represents a list of emojis @emojis List of emojis
-emojis emojis:vector<string> = Emojis;
-
-//@description Represents a sticker set
-//@id Identifier of the sticker set
-//@title Title of the sticker set
-//@name Name of the sticker set
-//@thumbnail Sticker set thumbnail in WEBP, TGS, or WEBM format with width and height 100; may be null. The file can be downloaded only before the thumbnail is changed
-//@thumbnail_outline Sticker set thumbnail's outline; may be null if unknown
-//@is_owned True, if the sticker set is owned by the current user
-//@is_installed True, if the sticker set has been installed by the current user
-//@is_archived True, if the sticker set has been archived. A sticker set can't be installed and archived simultaneously
-//@is_official True, if the sticker set is official
-//@sticker_type Type of the stickers in the set
-//@needs_repainting True, if stickers in the sticker set are custom emoji that must be repainted; for custom emoji sticker sets only
-//@is_allowed_as_chat_emoji_status True, if stickers in the sticker set are custom emoji that can be used as chat emoji status; for custom emoji sticker sets only
-//@is_viewed True for already viewed trending sticker sets
-//@stickers List of stickers in this set
-//@emojis A list of emojis corresponding to the stickers in the same order. The list is only for informational purposes, because a sticker is always sent with a fixed emoji from the corresponding Sticker object
-stickerSet id:int64 title:string name:string thumbnail:thumbnail thumbnail_outline:outline is_owned:Bool is_installed:Bool is_archived:Bool is_official:Bool sticker_type:StickerType needs_repainting:Bool is_allowed_as_chat_emoji_status:Bool is_viewed:Bool stickers:vector<sticker> emojis:vector<emojis> = StickerSet;
-
-//@description Represents short information about a sticker set
-//@id Identifier of the sticker set
-//@title Title of the sticker set
-//@name Name of the sticker set
-//@thumbnail Sticker set thumbnail in WEBP, TGS, or WEBM format with width and height 100; may be null. The file can be downloaded only before the thumbnail is changed
-//@thumbnail_outline Sticker set thumbnail's outline; may be null if unknown
-//@is_owned True, if the sticker set is owned by the current user
-//@is_installed True, if the sticker set has been installed by the current user
-//@is_archived True, if the sticker set has been archived. A sticker set can't be installed and archived simultaneously
-//@is_official True, if the sticker set is official
-//@sticker_type Type of the stickers in the set
-//@needs_repainting True, if stickers in the sticker set are custom emoji that must be repainted; for custom emoji sticker sets only
-//@is_allowed_as_chat_emoji_status True, if stickers in the sticker set are custom emoji that can be used as chat emoji status; for custom emoji sticker sets only
-//@is_viewed True for already viewed trending sticker sets
-//@size Total number of stickers in the set
-//@covers Up to the first 5 stickers from the set, depending on the context. If the application needs more stickers the full sticker set needs to be requested
-stickerSetInfo id:int64 title:string name:string thumbnail:thumbnail thumbnail_outline:outline is_owned:Bool is_installed:Bool is_archived:Bool is_official:Bool sticker_type:StickerType needs_repainting:Bool is_allowed_as_chat_emoji_status:Bool is_viewed:Bool size:int32 covers:vector<sticker> = StickerSetInfo;
-
-//@description Represents a list of sticker sets @total_count Approximate total number of sticker sets found @sets List of sticker sets
-stickerSets total_count:int32 sets:vector<stickerSetInfo> = StickerSets;
-
-//@description Represents a list of trending sticker sets @total_count Approximate total number of trending sticker sets @sets List of trending sticker sets @is_premium True, if the list contains sticker sets with premium stickers
-trendingStickerSets total_count:int32 sets:vector<stickerSetInfo> is_premium:Bool = TrendingStickerSets;
-
-
-//@class EmojiCategorySource @description Describes source of stickers for an emoji category
-
-//@description The category contains a list of similar emoji to search for in getStickers and searchStickers for stickers,
-//-or getInlineQueryResults with the bot getOption("animation_search_bot_username") for animations
-//@emojis List of emojis to search for
-emojiCategorySourceSearch emojis:vector<string> = EmojiCategorySource;
-
-//@description The category contains premium stickers that must be found by getPremiumStickers
-emojiCategorySourcePremium = EmojiCategorySource;
-
-
-//@description Describes an emoji category
-//@name Name of the category
-//@icon Custom emoji sticker, which represents icon of the category
-//@source Source of stickers for the emoji category
-//@is_greeting True, if the category must be shown first when choosing a sticker for the start page
-emojiCategory name:string icon:sticker source:EmojiCategorySource is_greeting:Bool = EmojiCategory;
-
-//@description Represents a list of emoji categories @categories List of categories
-emojiCategories categories:vector<emojiCategory> = EmojiCategories;
-
-
-//@class EmojiCategoryType @description Describes type of emoji category
-
-//@description The category must be used by default (e.g., for custom emoji or animation search)
-emojiCategoryTypeDefault = EmojiCategoryType;
-
-//@description The category must be used by default for regular sticker selection. It may contain greeting emoji category and premium stickers
-emojiCategoryTypeRegularStickers = EmojiCategoryType;
-
-//@description The category must be used for emoji status selection
-emojiCategoryTypeEmojiStatus = EmojiCategoryType;
-
-//@description The category must be used for chat photo emoji selection
-emojiCategoryTypeChatPhoto = EmojiCategoryType;
-
-
-//@description Describes the current weather
-//@temperature Temperature, in degree Celsius
-//@emoji Emoji representing the weather
-currentWeather temperature:double emoji:string = CurrentWeather;
-
-
-//@description Describes position of a clickable rectangle area on a story media
-//@x_percentage The abscissa of the rectangle's center, as a percentage of the media width
-//@y_percentage The ordinate of the rectangle's center, as a percentage of the media height
-//@width_percentage The width of the rectangle, as a percentage of the media width
-//@height_percentage The height of the rectangle, as a percentage of the media height
-//@rotation_angle Clockwise rotation angle of the rectangle, in degrees; 0-360
-//@corner_radius_percentage The radius of the rectangle corner rounding, as a percentage of the media width
-storyAreaPosition x_percentage:double y_percentage:double width_percentage:double height_percentage:double rotation_angle:double corner_radius_percentage:double = StoryAreaPosition;
-
-
-//@class StoryAreaType @description Describes type of clickable area on a story media
-
-//@description An area pointing to a location @location The location @address Address of the location; may be null if unknown
-storyAreaTypeLocation location:location address:locationAddress = StoryAreaType;
-
-//@description An area pointing to a venue @venue Information about the venue
-storyAreaTypeVenue venue:venue = StoryAreaType;
-
-//@description An area pointing to a suggested reaction. App needs to show a clickable reaction on the area and call setStoryReaction when the are is clicked
-//@reaction_type Type of the reaction
-//@total_count Number of times the reaction was added
-//@is_dark True, if reaction has a dark background
-//@is_flipped True, if reaction corner is flipped
-storyAreaTypeSuggestedReaction reaction_type:ReactionType total_count:int32 is_dark:Bool is_flipped:Bool = StoryAreaType;
-
-//@description An area pointing to a message @chat_id Identifier of the chat with the message @message_id Identifier of the message
-storyAreaTypeMessage chat_id:int53 message_id:int53 = StoryAreaType;
-
-//@description An area pointing to a HTTP or tg:// link @url HTTP or tg:// URL to be opened when the area is clicked
-storyAreaTypeLink url:string = StoryAreaType;
-
-//@description An area with information about weather
-//@temperature Temperature, in degree Celsius
-//@emoji Emoji representing the weather
-//@background_color A color of the area background in the ARGB format
-storyAreaTypeWeather temperature:double emoji:string background_color:int32 = StoryAreaType;
-
-//@description An area with an upgraded gift
-//@gift_name Unique name of the upgraded gift
-storyAreaTypeUpgradedGift gift_name:string = StoryAreaType;
-
-
-//@description Describes a clickable rectangle area on a story media @position Position of the area @type Type of the area
-storyArea position:storyAreaPosition type:StoryAreaType = StoryArea;
-
-
-//@class InputStoryAreaType @description Describes type of clickable area on a story media to be added
-
-//@description An area pointing to a location @location The location @address Address of the location; pass null if unknown
-inputStoryAreaTypeLocation location:location address:locationAddress = InputStoryAreaType;
-
-//@description An area pointing to a venue found by the bot getOption("venue_search_bot_username")
-//@query_id Identifier of the inline query, used to found the venue
-//@result_id Identifier of the inline query result
-inputStoryAreaTypeFoundVenue query_id:int64 result_id:string = InputStoryAreaType;
-
-//@description An area pointing to a venue already added to the story
-//@venue_provider Provider of the venue
-//@venue_id Identifier of the venue in the provider database
-inputStoryAreaTypePreviousVenue venue_provider:string venue_id:string = InputStoryAreaType;
-
-//@description An area pointing to a suggested reaction
-//@reaction_type Type of the reaction
-//@is_dark True, if reaction has a dark background
-//@is_flipped True, if reaction corner is flipped
-inputStoryAreaTypeSuggestedReaction reaction_type:ReactionType is_dark:Bool is_flipped:Bool = InputStoryAreaType;
-
-//@description An area pointing to a message
-//@chat_id Identifier of the chat with the message. Currently, the chat must be a supergroup or a channel chat
-//@message_id Identifier of the message. Use messageProperties.can_be_shared_in_story to check whether the message is suitable
-inputStoryAreaTypeMessage chat_id:int53 message_id:int53 = InputStoryAreaType;
-
-//@description An area pointing to a HTTP or tg:// link
-//@url HTTP or tg:// URL to be opened when the area is clicked
-inputStoryAreaTypeLink url:string = InputStoryAreaType;
-
-//@description An area with information about weather
-//@temperature Temperature, in degree Celsius
-//@emoji Emoji representing the weather
-//@background_color A color of the area background in the ARGB format
-inputStoryAreaTypeWeather temperature:double emoji:string background_color:int32 = InputStoryAreaType;
-
-//@description An area with an upgraded gift @gift_name Unique name of the upgraded gift
-inputStoryAreaTypeUpgradedGift gift_name:string = InputStoryAreaType;
-
-
-//@description Describes a clickable rectangle area on a story media to be added @position Position of the area @type Type of the area
-inputStoryArea position:storyAreaPosition type:InputStoryAreaType = InputStoryArea;
-
-//@description Contains a list of story areas to be added @areas List of input story areas. Currently, a story can have
-//-up to 10 inputStoryAreaTypeLocation, inputStoryAreaTypeFoundVenue, and inputStoryAreaTypePreviousVenue areas,
-//-up to getOption("story_suggested_reaction_area_count_max") inputStoryAreaTypeSuggestedReaction areas,
-//-up to 1 inputStoryAreaTypeMessage area,
-//-up to getOption("story_link_area_count_max") inputStoryAreaTypeLink areas if the current user is a Telegram Premium user,
-//-up to 3 inputStoryAreaTypeWeather areas, and
-//-up to 1 inputStoryAreaTypeUpgradedGift area
-inputStoryAreas areas:vector<inputStoryArea> = InputStoryAreas;
-
-
-//@description Describes a video file sent in a story
-//@duration Duration of the video, in seconds
-//@width Video width
-//@height Video height
-//@has_stickers True, if stickers were added to the video. The list of corresponding sticker sets can be received using getAttachedStickerSets
-//@is_animation True, if the video has no sound
-//@minithumbnail Video minithumbnail; may be null
-//@thumbnail Video thumbnail in JPEG or MPEG4 format; may be null
-//@preload_prefix_size Size of file prefix, which is expected to be preloaded, in bytes
-//@cover_frame_timestamp Timestamp of the frame used as video thumbnail
-//@video File containing the video
-storyVideo duration:double width:int32 height:int32 has_stickers:Bool is_animation:Bool minithumbnail:minithumbnail thumbnail:thumbnail preload_prefix_size:int32 cover_frame_timestamp:double video:file = StoryVideo;
-
-
-//@class StoryContent @description Contains the content of a story
-
-//@description A photo story @photo The photo
-storyContentPhoto photo:photo = StoryContent;
-
-//@description A video story @video The video in MPEG4 format @alternative_video Alternative version of the video in MPEG4 format, encoded with H.264 codec; may be null
-storyContentVideo video:storyVideo alternative_video:storyVideo = StoryContent;
-
-//@description A story content that is not supported in the current TDLib version
-storyContentUnsupported = StoryContent;
-
-
-//@class InputStoryContent @description The content of a story to send
-
-//@description A photo story
-//@photo Photo to send. The photo must be at most 10 MB in size. The photo size must be 1080x1920
-//@added_sticker_file_ids File identifiers of the stickers added to the photo, if applicable
-inputStoryContentPhoto photo:InputFile added_sticker_file_ids:vector<int32> = InputStoryContent;
-
-//@description A video story
-//@video Video to be sent. The video size must be 720x1280. The video must be streamable and stored in MPEG4 format, after encoding with H.265 codec and key frames added each second
-//@added_sticker_file_ids File identifiers of the stickers added to the video, if applicable
-//@duration Precise duration of the video, in seconds; 0-60
-//@cover_frame_timestamp Timestamp of the frame, which will be used as video thumbnail
-//@is_animation True, if the video has no sound
-inputStoryContentVideo video:InputFile added_sticker_file_ids:vector<int32> duration:double cover_frame_timestamp:double is_animation:Bool = InputStoryContent;
-
-
-//@class StoryList @description Describes a list of stories
-
-//@description The list of stories, shown in the main chat list and folder chat lists
-storyListMain = StoryList;
-
-//@description The list of stories, shown in the Arvhive chat list
-storyListArchive = StoryList;
-
-
-//@class StoryOrigin @description Contains information about the origin of a story that was reposted
-
-//@description The original story was a public story with known sender @chat_id Identifier of the chat that posted original story @story_id Story identifier of the original story
-storyOriginPublicStory chat_id:int53 story_id:int32 = StoryOrigin;
-
-//@description The original story was sent by an unknown user @sender_name Name of the story sender
-storyOriginHiddenUser sender_name:string = StoryOrigin;
-
-
-//@description Contains information about original story that was reposted
-//@origin Origin of the story that was reposted
-//@is_content_modified True, if story content was modified during reposting; otherwise, story wasn't modified
-storyRepostInfo origin:StoryOrigin is_content_modified:Bool = StoryRepostInfo;
-
-//@description Contains information about interactions with a story
-//@view_count Number of times the story was viewed
-//@forward_count Number of times the story was forwarded; 0 if none or unknown
-//@reaction_count Number of reactions added to the story; 0 if none or unknown
-//@recent_viewer_user_ids Identifiers of at most 3 recent viewers of the story
-storyInteractionInfo view_count:int32 forward_count:int32 reaction_count:int32 recent_viewer_user_ids:vector<int53> = StoryInteractionInfo;
-
-//@description Represents a story
-//@id Unique story identifier among stories of the given sender
-//@sender_chat_id Identifier of the chat that posted the story
-//@sender_id Identifier of the sender of the story; may be null if the story is posted on behalf of the sender_chat_id
-//@date Point in time (Unix timestamp) when the story was published
-//@is_being_sent True, if the story is being sent by the current user
-//@is_being_edited True, if the story is being edited by the current user
-//@is_edited True, if the story was edited
-//@is_posted_to_chat_page True, if the story is saved in the sender's profile and will be available there after expiration
-//@is_visible_only_for_self True, if the story is visible only for the current user
-//@can_be_deleted True, if the story can be deleted
-//@can_be_edited True, if the story can be edited
-//@can_be_forwarded True, if the story can be forwarded as a message. Otherwise, screenshots and saving of the story content must be also forbidden
-//@can_be_replied True, if the story can be replied in the chat with the story sender
-//@can_toggle_is_posted_to_chat_page True, if the story's is_posted_to_chat_page value can be changed
-//@can_get_statistics True, if the story statistics are available through getStoryStatistics
-//@can_get_interactions True, if interactions with the story can be received through getStoryInteractions
-//@has_expired_viewers True, if users viewed the story can't be received, because the story has expired more than getOption("story_viewers_expiration_delay") seconds ago
-//@repost_info Information about the original story; may be null if the story wasn't reposted
-//@interaction_info Information about interactions with the story; may be null if the story isn't owned or there were no interactions
-//@chosen_reaction_type Type of the chosen reaction; may be null if none
-//@privacy_settings Privacy rules affecting story visibility; may be approximate for non-owned stories
-//@content Content of the story
-//@areas Clickable areas to be shown on the story content
-//@caption Caption of the story
-story id:int32 sender_chat_id:int53 sender_id:MessageSender date:int32 is_being_sent:Bool is_being_edited:Bool is_edited:Bool is_posted_to_chat_page:Bool is_visible_only_for_self:Bool can_be_deleted:Bool can_be_edited:Bool can_be_forwarded:Bool can_be_replied:Bool can_toggle_is_posted_to_chat_page:Bool can_get_statistics:Bool can_get_interactions:Bool has_expired_viewers:Bool repost_info:storyRepostInfo interaction_info:storyInteractionInfo chosen_reaction_type:ReactionType privacy_settings:StoryPrivacySettings content:StoryContent areas:vector<storyArea> caption:formattedText = Story;
-
-//@description Represents a list of stories
-//@total_count Approximate total number of stories found
-//@stories The list of stories
-//@pinned_story_ids Identifiers of the pinned stories; returned only in getChatPostedToChatPageStories with from_story_id == 0
-stories total_count:int32 stories:vector<story> pinned_story_ids:vector<int32> = Stories;
-
-//@description Contains a list of stories found by a search @total_count Approximate total number of stories found @stories List of stories @next_offset The offset for the next request. If empty, then there are no more results
-foundStories total_count:int32 stories:vector<story> next_offset:string = FoundStories;
-
-//@description Contains identifier of a story along with identifier of its sender
-//@sender_chat_id Identifier of the chat that posted the story
-//@story_id Unique story identifier among stories of the given sender
-storyFullId sender_chat_id:int53 story_id:int32 = StoryFullId;
-
-//@description Contains basic information about a story
-//@story_id Unique story identifier among stories of the given sender
-//@date Point in time (Unix timestamp) when the story was published
-//@is_for_close_friends True, if the story is available only to close friends
-storyInfo story_id:int32 date:int32 is_for_close_friends:Bool = StoryInfo;
-
-//@description Describes active stories posted by a chat
-//@chat_id Identifier of the chat that posted the stories
-//@list Identifier of the story list in which the stories are shown; may be null if the stories aren't shown in a story list
-//@order A parameter used to determine order of the stories in the story list; 0 if the stories doesn't need to be shown in the story list. Stories must be sorted by the pair (order, story_sender_chat_id) in descending order
-//@max_read_story_id Identifier of the last read active story
-//@stories Basic information about the stories; use getStory to get full information about the stories. The stories are in chronological order (i.e., in order of increasing story identifiers)
-chatActiveStories chat_id:int53 list:StoryList order:int53 max_read_story_id:int32 stories:vector<storyInfo> = ChatActiveStories;
-
-
-//@class StoryInteractionType @description Describes type of interaction with a story
-
-//@description A view of the story @chosen_reaction_type Type of the reaction that was chosen by the viewer; may be null if none
-storyInteractionTypeView chosen_reaction_type:ReactionType = StoryInteractionType;
-
-//@description A forward of the story as a message @message The message with story forward
-storyInteractionTypeForward message:message = StoryInteractionType;
-
-//@description A repost of the story as a story @story The reposted story
-storyInteractionTypeRepost story:story = StoryInteractionType;
-
-
-//@description Represents interaction with a story
-//@actor_id Identifier of the user or chat that made the interaction
-//@interaction_date Approximate point in time (Unix timestamp) when the interaction happened
-//@block_list Block list to which the actor is added; may be null if none or for chat stories
-//@type Type of the interaction
-storyInteraction actor_id:MessageSender interaction_date:int32 block_list:BlockList type:StoryInteractionType = StoryInteraction;
-
-//@description Represents a list of interactions with a story
-//@total_count Approximate total number of interactions found
-//@total_forward_count Approximate total number of found forwards and reposts; always 0 for chat stories
-//@total_reaction_count Approximate total number of found reactions; always 0 for chat stories
-//@interactions List of story interactions
-//@next_offset The offset for the next request. If empty, then there are no more results
-storyInteractions total_count:int32 total_forward_count:int32 total_reaction_count:int32 interactions:vector<storyInteraction> next_offset:string = StoryInteractions;
-
-
-//@description Describes a message that can be used for quick reply
-//@id Unique message identifier among all quick replies
-//@sending_state The sending state of the message; may be null if the message isn't being sent and didn't fail to be sent
-//@can_be_edited True, if the message can be edited
-//@reply_to_message_id The identifier of the quick reply message to which the message replies; 0 if none
-//@via_bot_user_id If non-zero, the user identifier of the bot through which this message was sent
-//@media_album_id Unique identifier of an album this message belongs to; 0 if none. Only audios, documents, photos and videos can be grouped together in albums
-//@content Content of the message
-//@reply_markup Inline keyboard reply markup for the message; may be null if none
-quickReplyMessage id:int53 sending_state:MessageSendingState can_be_edited:Bool reply_to_message_id:int53 via_bot_user_id:int53 media_album_id:int64 content:MessageContent reply_markup:ReplyMarkup = QuickReplyMessage;
-
-//@description Contains a list of quick reply messages @messages List of quick reply messages; messages may be null
-quickReplyMessages messages:vector<quickReplyMessage> = QuickReplyMessages;
-
-//@description Describes a shortcut that can be used for a quick reply
-//@id Unique shortcut identifier
-//@name The name of the shortcut that can be used to use the shortcut
-//@first_message The first shortcut message
-//@message_count The total number of messages in the shortcut
-quickReplyShortcut id:int32 name:string first_message:quickReplyMessage message_count:int32 = QuickReplyShortcut;
-
-
-//@class PublicForward @description Describes a public forward or repost of a story
-
-//@description Contains a public forward as a message @message Information about the message
-publicForwardMessage message:message = PublicForward;
-
-//@description Contains a public repost to a story @story Information about the story
-publicForwardStory story:story = PublicForward;
-
-
-//@description Represents a list of public forwards and reposts as a story of a message or a story
-//@total_count Approximate total number of messages and stories found
-//@forwards List of found public forwards and reposts
-//@next_offset The offset for the next request. If empty, then there are no more results
-publicForwards total_count:int32 forwards:vector<PublicForward> next_offset:string = PublicForwards;
-
-
-//@description Describes media previews of a bot
-//@date Point in time (Unix timestamp) when the preview was added or changed last time
-//@content Content of the preview
-botMediaPreview date:int32 content:StoryContent = BotMediaPreview;
-
-//@description Contains a list of media previews of a bot @previews List of media previews
-botMediaPreviews previews:vector<botMediaPreview> = BotMediaPreviews;
-
-//@description Contains a list of media previews of a bot for the given language and the list of languages for which the bot has dedicated previews
-//@previews List of media previews
-//@language_codes List of language codes for which the bot has dedicated previews
-botMediaPreviewInfo previews:vector<botMediaPreview> language_codes:vector<string> = BotMediaPreviewInfo;
-
-
-//@description Contains a list of features available on a specific chat boost level
-//@level Target chat boost level
-//@story_per_day_count Number of stories that the chat can publish daily
-//@custom_emoji_reaction_count Number of custom emoji reactions that can be added to the list of available reactions
-//@title_color_count Number of custom colors for chat title
-//@profile_accent_color_count Number of custom colors for profile photo background
-//@can_set_profile_background_custom_emoji True, if custom emoji for profile background can be set
-//@accent_color_count Number of custom colors for background of empty chat photo, replies to messages and link previews
-//@can_set_background_custom_emoji True, if custom emoji for reply header and link preview background can be set
-//@can_set_emoji_status True, if emoji status can be set
-//@chat_theme_background_count Number of chat theme backgrounds that can be set as chat background
-//@can_set_custom_background True, if custom background can be set in the chat for all users
-//@can_set_custom_emoji_sticker_set True, if custom emoji sticker set can be set for the chat
-//@can_recognize_speech True, if speech recognition can be used for video note and voice note messages by all users
-//@can_disable_sponsored_messages True, if sponsored messages can be disabled in the chat
-chatBoostLevelFeatures level:int32 story_per_day_count:int32 custom_emoji_reaction_count:int32 title_color_count:int32 profile_accent_color_count:int32 can_set_profile_background_custom_emoji:Bool accent_color_count:int32 can_set_background_custom_emoji:Bool can_set_emoji_status:Bool chat_theme_background_count:int32 can_set_custom_background:Bool can_set_custom_emoji_sticker_set:Bool can_recognize_speech:Bool can_disable_sponsored_messages:Bool = ChatBoostLevelFeatures;
-
-//@description Contains a list of features available on the first chat boost levels
-//@features The list of features
-//@min_profile_background_custom_emoji_boost_level The minimum boost level required to set custom emoji for profile background
-//@min_background_custom_emoji_boost_level The minimum boost level required to set custom emoji for reply header and link preview background; for channel chats only
-//@min_emoji_status_boost_level The minimum boost level required to set emoji status
-//@min_chat_theme_background_boost_level The minimum boost level required to set a chat theme background as chat background
-//@min_custom_background_boost_level The minimum boost level required to set custom chat background
-//@min_custom_emoji_sticker_set_boost_level The minimum boost level required to set custom emoji sticker set for the chat; for supergroup chats only
-//@min_speech_recognition_boost_level The minimum boost level allowing to recognize speech in video note and voice note messages for non-Premium users; for supergroup chats only
-//@min_sponsored_message_disable_boost_level The minimum boost level allowing to disable sponsored messages in the chat; for channel chats only
-chatBoostFeatures features:vector<chatBoostLevelFeatures> min_profile_background_custom_emoji_boost_level:int32 min_background_custom_emoji_boost_level:int32 min_emoji_status_boost_level:int32 min_chat_theme_background_boost_level:int32 min_custom_background_boost_level:int32 min_custom_emoji_sticker_set_boost_level:int32 min_speech_recognition_boost_level:int32 min_sponsored_message_disable_boost_level:int32 = ChatBoostFeatures;
-
-
-//@class ChatBoostSource @description Describes source of a chat boost
-
-//@description The chat created a Telegram Premium gift code for a user
-//@user_id Identifier of a user, for which the gift code was created
-//@gift_code The created Telegram Premium gift code, which is known only if this is a gift code for the current user, or it has already been claimed
-chatBoostSourceGiftCode user_id:int53 gift_code:string = ChatBoostSource;
-
-//@description The chat created a giveaway
-//@user_id Identifier of a user that won in the giveaway; 0 if none
-//@gift_code The created Telegram Premium gift code if it was used by the user or can be claimed by the current user; an empty string otherwise; for Telegram Premium giveways only
-//@star_count Number of Telegram Stars distributed among winners of the giveaway
-//@giveaway_message_id Identifier of the corresponding giveaway message; can be an identifier of a deleted message
-//@is_unclaimed True, if the winner for the corresponding giveaway prize wasn't chosen, because there were not enough participants
-chatBoostSourceGiveaway user_id:int53 gift_code:string star_count:int53 giveaway_message_id:int53 is_unclaimed:Bool = ChatBoostSource;
-
-//@description A user with Telegram Premium subscription or gifted Telegram Premium boosted the chat
-//@user_id Identifier of the user
-chatBoostSourcePremium user_id:int53 = ChatBoostSource;
-
-
-//@description Describes a prepaid giveaway
-//@id Unique identifier of the prepaid giveaway
-//@winner_count Number of users which will receive giveaway prize
-//@prize Prize of the giveaway
-//@boost_count The number of boosts received by the chat from the giveaway; for Telegram Star giveaways only
-//@payment_date Point in time (Unix timestamp) when the giveaway was paid
-prepaidGiveaway id:int64 winner_count:int32 prize:GiveawayPrize boost_count:int32 payment_date:int32 = PrepaidGiveaway;
-
-//@description Describes current boost status of a chat
-//@boost_url An HTTP URL, which can be used to boost the chat
-//@applied_slot_ids Identifiers of boost slots of the current user applied to the chat
-//@level Current boost level of the chat
-//@gift_code_boost_count The number of boosts received by the chat from created Telegram Premium gift codes and giveaways; always 0 if the current user isn't an administrator in the chat
-//@boost_count The number of boosts received by the chat
-//@current_level_boost_count The number of boosts added to reach the current level
-//@next_level_boost_count The number of boosts needed to reach the next level; 0 if the next level isn't available
-//@premium_member_count Approximate number of Telegram Premium subscribers joined the chat; always 0 if the current user isn't an administrator in the chat
-//@premium_member_percentage A percentage of Telegram Premium subscribers joined the chat; always 0 if the current user isn't an administrator in the chat
-//@prepaid_giveaways The list of prepaid giveaways available for the chat; only for chat administrators
-chatBoostStatus boost_url:string applied_slot_ids:vector<int32> level:int32 gift_code_boost_count:int32 boost_count:int32 current_level_boost_count:int32 next_level_boost_count:int32 premium_member_count:int32 premium_member_percentage:double prepaid_giveaways:vector<prepaidGiveaway> = ChatBoostStatus;
-
-//@description Describes a boost applied to a chat
-//@id Unique identifier of the boost
-//@count The number of identical boosts applied
-//@source Source of the boost
-//@start_date Point in time (Unix timestamp) when the chat was boosted
-//@expiration_date Point in time (Unix timestamp) when the boost will expire
-chatBoost id:string count:int32 source:ChatBoostSource start_date:int32 expiration_date:int32 = ChatBoost;
-
-//@description Contains a list of boosts applied to a chat
-//@total_count Total number of boosts applied to the chat
-//@boosts List of boosts
-//@next_offset The offset for the next request. If empty, then there are no more results
-foundChatBoosts total_count:int32 boosts:vector<chatBoost> next_offset:string = FoundChatBoosts;
-
-//@description Describes a slot for chat boost
-//@slot_id Unique identifier of the slot
-//@currently_boosted_chat_id Identifier of the currently boosted chat; 0 if none
-//@start_date Point in time (Unix timestamp) when the chat was boosted; 0 if none
-//@expiration_date Point in time (Unix timestamp) when the boost will expire
-//@cooldown_until_date Point in time (Unix timestamp) after which the boost can be used for another chat
-chatBoostSlot slot_id:int32 currently_boosted_chat_id:int53 start_date:int32 expiration_date:int32 cooldown_until_date:int32 = ChatBoostSlot;
-
-//@description Contains a list of chat boost slots @slots List of boost slots
-chatBoostSlots slots:vector<chatBoostSlot> = ChatBoostSlots;
-
-
-//@class ResendCodeReason @description Describes the reason why a code needs to be re-sent
-
-//@description The user requested to resend the code
-resendCodeReasonUserRequest = ResendCodeReason;
-
-//@description The code is re-sent, because device verification has failed
-//@error_message Cause of the verification failure, for example, PLAY_SERVICES_NOT_AVAILABLE, APNS_RECEIVE_TIMEOUT, or APNS_INIT_FAILED
-resendCodeReasonVerificationFailed error_message:string = ResendCodeReason;
-
-
-//@class CallDiscardReason @description Describes the reason why a call was discarded
-
-//@description The call wasn't discarded, or the reason is unknown
-callDiscardReasonEmpty = CallDiscardReason;
-
-//@description The call was ended before the conversation started. It was canceled by the caller or missed by the other party
-callDiscardReasonMissed = CallDiscardReason;
-
-//@description The call was ended before the conversation started. It was declined by the other party
-callDiscardReasonDeclined = CallDiscardReason;
-
-//@description The call was ended during the conversation because the users were disconnected
-callDiscardReasonDisconnected = CallDiscardReason;
-
-//@description The call was ended because one of the parties hung up
-callDiscardReasonHungUp = CallDiscardReason;
-
-//@description The call was ended because it has been used successfully to transfer private encryption key for the associated group call
-//@encrypted_group_call_key Encrypted using the call private key encryption key for the associated group call
-callDiscardReasonAllowGroupCall encrypted_group_call_key:bytes = CallDiscardReason;
-
-
-//@description Specifies the supported call protocols
-//@udp_p2p True, if UDP peer-to-peer connections are supported
-//@udp_reflector True, if connection through UDP reflectors is supported
-//@min_layer The minimum supported API layer; use 65
-//@max_layer The maximum supported API layer; use 92
-//@library_versions List of supported tgcalls versions
-callProtocol udp_p2p:Bool udp_reflector:Bool min_layer:int32 max_layer:int32 library_versions:vector<string> = CallProtocol;
-
-
-//@class CallServerType @description Describes the type of call server
-
-//@description A Telegram call reflector @peer_tag A peer tag to be used with the reflector @is_tcp True, if the server uses TCP instead of UDP
-callServerTypeTelegramReflector peer_tag:bytes is_tcp:Bool = CallServerType;
-
-//@description A WebRTC server
-//@username Username to be used for authentication
-//@password Authentication password
-//@supports_turn True, if the server supports TURN
-//@supports_stun True, if the server supports STUN
-callServerTypeWebrtc username:string password:string supports_turn:Bool supports_stun:Bool = CallServerType;
-
-
-//@description Describes a server for relaying call data
-//@id Server identifier
-//@ip_address Server IPv4 address
-//@ipv6_address Server IPv6 address
-//@port Server port number
-//@type Server type
-callServer id:int64 ip_address:string ipv6_address:string port:int32 type:CallServerType = CallServer;
-
-
-//@description Contains the call identifier @id Call identifier
-callId id:int32 = CallId;
-
-//@description Contains the group call identifier @id Group call identifier
-groupCallId id:int32 = GroupCallId;
-
-
-//@class CallState @description Describes the current call state
-
-//@description The call is pending, waiting to be accepted by a user @is_created True, if the call has already been created by the server @is_received True, if the call has already been received by the other party
-callStatePending is_created:Bool is_received:Bool = CallState;
-
-//@description The call has been answered and encryption keys are being exchanged
-callStateExchangingKeys = CallState;
-
-//@description The call is ready to use
-//@protocol Call protocols supported by the other call participant
-//@servers List of available call servers
-//@config A JSON-encoded call config
-//@encryption_key Call encryption key
-//@emojis Encryption key fingerprint represented as 4 emoji
-//@allow_p2p True, if peer-to-peer connection is allowed by users privacy settings
-//@custom_parameters Custom JSON-encoded call parameters to be passed to tgcalls
-callStateReady protocol:callProtocol servers:vector<callServer> config:string encryption_key:bytes emojis:vector<string> allow_p2p:Bool custom_parameters:string = CallState;
-
-//@description The call is hanging up after discardCall has been called
-callStateHangingUp = CallState;
-
-//@description The call has ended successfully
-//@reason The reason why the call has ended
-//@need_rating True, if the call rating must be sent to the server
-//@need_debug_information True, if the call debug information must be sent to the server
-//@need_log True, if the call log must be sent to the server
-callStateDiscarded reason:CallDiscardReason need_rating:Bool need_debug_information:Bool need_log:Bool = CallState;
-
-//@description The call has ended with an error @error Error. An error with the code 4005000 will be returned if an outgoing call is missed because of an expired timeout
-callStateError error:error = CallState;
-
-
-//@class GroupCallVideoQuality @description Describes the quality of a group call video
-
-//@description The worst available video quality
-groupCallVideoQualityThumbnail = GroupCallVideoQuality;
-
-//@description The medium video quality
-groupCallVideoQualityMedium = GroupCallVideoQuality;
-
-//@description The best available video quality
-groupCallVideoQualityFull = GroupCallVideoQuality;
-
-
-//@description Describes an available stream in a group call
-//@channel_id Identifier of an audio/video channel
-//@scale Scale of segment durations in the stream. The duration is 1000/(2**scale) milliseconds
-//@time_offset Point in time when the stream currently ends; Unix timestamp in milliseconds
-groupCallStream channel_id:int32 scale:int32 time_offset:int53 = GroupCallStream;
-
-//@description Represents a list of group call streams @streams A list of group call streams
-groupCallStreams streams:vector<groupCallStream> = GroupCallStreams;
-
-//@description Represents an RTMP URL @url The URL @stream_key Stream key
-rtmpUrl url:string stream_key:string = RtmpUrl;
-
-
-//@description Describes a recently speaking participant in a group call @participant_id Group call participant identifier @is_speaking True, is the user has spoken recently
-groupCallRecentSpeaker participant_id:MessageSender is_speaking:Bool = GroupCallRecentSpeaker;
-
-//@description Describes a group call
-//@id Group call identifier
-//@from_call_id Identifier of one-to-one call from which the group call was created; 0 if unknown
-//@title Group call title
-//@scheduled_start_date Point in time (Unix timestamp) when the group call is expected to be started by an administrator; 0 if it is already active or was ended
-//@enabled_start_notification True, if the group call is scheduled and the current user will receive a notification when the group call starts
-//@is_active True, if the call is active
-//@is_rtmp_stream True, if the chat is an RTMP stream instead of an ordinary video chat
-//@is_joined True, if the call is joined
-//@need_rejoin True, if user was kicked from the call because of network loss and the call needs to be rejoined
-//@can_be_managed True, if the current user can manage the group call
-//@participant_count Number of participants in the group call
-//@has_hidden_listeners True, if group call participants, which are muted, aren't returned in participant list
-//@loaded_all_participants True, if all group call participants are loaded
-//@recent_speakers At most 3 recently speaking users in the group call
-//@is_my_video_enabled True, if the current user's video is enabled
-//@is_my_video_paused True, if the current user's video is paused
-//@can_enable_video True, if the current user can broadcast video or share screen
-//@mute_new_participants True, if only group call administrators can unmute new participants
-//@can_toggle_mute_new_participants True, if the current user can enable or disable mute_new_participants setting
-//@record_duration Duration of the ongoing group call recording, in seconds; 0 if none. An updateGroupCall update is not triggered when value of this field changes, but the same recording goes on
-//@is_video_recorded True, if a video file is being recorded for the call
-//@duration Call duration, in seconds; for ended calls only
-groupCall id:int32 from_call_id:int32 title:string scheduled_start_date:int32 enabled_start_notification:Bool is_active:Bool is_rtmp_stream:Bool is_joined:Bool need_rejoin:Bool can_be_managed:Bool participant_count:int32 has_hidden_listeners:Bool loaded_all_participants:Bool recent_speakers:vector<groupCallRecentSpeaker> is_my_video_enabled:Bool is_my_video_paused:Bool can_enable_video:Bool mute_new_participants:Bool can_toggle_mute_new_participants:Bool record_duration:int32 is_video_recorded:Bool duration:int32 = GroupCall;
-
-//@description Describes a group of video synchronization source identifiers @semantics The semantics of sources, one of "SIM" or "FID" @source_ids The list of synchronization source identifiers
-groupCallVideoSourceGroup semantics:string source_ids:vector<int32> = GroupCallVideoSourceGroup;
-
-//@description Contains information about a group call participant's video channel
-//@source_groups List of synchronization source groups of the video
-//@endpoint_id Video channel endpoint identifier
-//@is_paused True, if the video is paused. This flag needs to be ignored, if new video frames are received
-groupCallParticipantVideoInfo source_groups:vector<groupCallVideoSourceGroup> endpoint_id:string is_paused:Bool = GroupCallParticipantVideoInfo;
-
-//@description Represents a group call participant
-//@participant_id Identifier of the group call participant
-//@audio_source_id User's audio channel synchronization source identifier
-//@screen_sharing_audio_source_id User's screen sharing audio channel synchronization source identifier
-//@video_info Information about user's video channel; may be null if there is no active video
-//@screen_sharing_video_info Information about user's screen sharing video channel; may be null if there is no active screen sharing video
-//@bio The participant user's bio or the participant chat's description
-//@is_current_user True, if the participant is the current user
-//@is_speaking True, if the participant is speaking as set by setGroupCallParticipantIsSpeaking
-//@is_hand_raised True, if the participant hand is raised
-//@can_be_muted_for_all_users True, if the current user can mute the participant for all other group call participants
-//@can_be_unmuted_for_all_users True, if the current user can allow the participant to unmute themselves or unmute the participant (if the participant is the current user)
-//@can_be_muted_for_current_user True, if the current user can mute the participant only for self
-//@can_be_unmuted_for_current_user True, if the current user can unmute the participant for self
-//@is_muted_for_all_users True, if the participant is muted for all users
-//@is_muted_for_current_user True, if the participant is muted for the current user
-//@can_unmute_self True, if the participant is muted for all users, but can unmute themselves
-//@volume_level Participant's volume level; 1-20000 in hundreds of percents
-//@order User's order in the group call participant list. Orders must be compared lexicographically. The bigger is order, the higher is user in the list. If order is empty, the user must be removed from the participant list
-groupCallParticipant participant_id:MessageSender audio_source_id:int32 screen_sharing_audio_source_id:int32 video_info:groupCallParticipantVideoInfo screen_sharing_video_info:groupCallParticipantVideoInfo bio:string is_current_user:Bool is_speaking:Bool is_hand_raised:Bool can_be_muted_for_all_users:Bool can_be_unmuted_for_all_users:Bool can_be_muted_for_current_user:Bool can_be_unmuted_for_current_user:Bool is_muted_for_all_users:Bool is_muted_for_current_user:Bool can_unmute_self:Bool volume_level:int32 order:string = GroupCallParticipant;
-
-
-//@class CallProblem @description Describes the exact type of problem with a call
-
-//@description The user heard their own voice
-callProblemEcho = CallProblem;
-
-//@description The user heard background noise
-callProblemNoise = CallProblem;
-
-//@description The other side kept disappearing
-callProblemInterruptions = CallProblem;
-
-//@description The speech was distorted
-callProblemDistortedSpeech = CallProblem;
-
-//@description The user couldn't hear the other side
-callProblemSilentLocal = CallProblem;
-
-//@description The other side couldn't hear the user
-callProblemSilentRemote = CallProblem;
-
-//@description The call ended unexpectedly
-callProblemDropped = CallProblem;
-
-//@description The video was distorted
-callProblemDistortedVideo = CallProblem;
-
-//@description The video was pixelated
-callProblemPixelatedVideo = CallProblem;
-
-
-//@description Describes a call
-//@id Call identifier, not persistent
-//@user_id User identifier of the other call participant
-//@is_outgoing True, if the call is outgoing
-//@is_video True, if the call is a video call
-//@state Call state
-//@group_call_id Identifier of the group call associated with the call; 0 if the group call isn't created yet. The group call can be received through the method getGroupCall
-call id:int32 user_id:int53 is_outgoing:Bool is_video:Bool state:CallState group_call_id:int32 = Call;
-
-
-//@class FirebaseAuthenticationSettings @description Contains settings for Firebase Authentication in the official applications
-
-//@description Settings for Firebase Authentication in the official Android application
-firebaseAuthenticationSettingsAndroid = FirebaseAuthenticationSettings;
-
-//@description Settings for Firebase Authentication in the official iOS application @device_token Device token from Apple Push Notification service @is_app_sandbox True, if App Sandbox is enabled
-firebaseAuthenticationSettingsIos device_token:string is_app_sandbox:Bool = FirebaseAuthenticationSettings;
-
-
-//@description Contains settings for the authentication of the user's phone number
-//@allow_flash_call Pass true if the authentication code may be sent via a flash call to the specified phone number
-//@allow_missed_call Pass true if the authentication code may be sent via a missed call to the specified phone number
-//@is_current_phone_number Pass true if the authenticated phone number is used on the current device
-//@has_unknown_phone_number Pass true if there is a SIM card in the current device, but it is not possible to check whether phone number matches
-//@allow_sms_retriever_api For official applications only. True, if the application can use Android SMS Retriever API (requires Google Play Services >= 10.2) to automatically receive the authentication code from the SMS. See https://developers.google.com/identity/sms-retriever/ for more details
-//@firebase_authentication_settings For official Android and iOS applications only; pass null otherwise. Settings for Firebase Authentication
-//@authentication_tokens List of up to 20 authentication tokens, recently received in updateOption("authentication_token") in previously logged out sessions
-phoneNumberAuthenticationSettings allow_flash_call:Bool allow_missed_call:Bool is_current_phone_number:Bool has_unknown_phone_number:Bool allow_sms_retriever_api:Bool firebase_authentication_settings:FirebaseAuthenticationSettings authentication_tokens:vector<string> = PhoneNumberAuthenticationSettings;
-
-
-//@description Represents a reaction applied to a message
-//@type Type of the reaction
-//@sender_id Identifier of the chat member, applied the reaction
-//@is_outgoing True, if the reaction was added by the current user
-//@date Point in time (Unix timestamp) when the reaction was added
-addedReaction type:ReactionType sender_id:MessageSender is_outgoing:Bool date:int32 = AddedReaction;
-
-//@description Represents a list of reactions added to a message @total_count The total number of found reactions @reactions The list of added reactions @next_offset The offset for the next request. If empty, then there are no more results
-addedReactions total_count:int32 reactions:vector<addedReaction> next_offset:string = AddedReactions;
-
-//@description Represents an available reaction @type Type of the reaction @needs_premium True, if Telegram Premium is needed to send the reaction
-availableReaction type:ReactionType needs_premium:Bool = AvailableReaction;
-
-//@description Represents a list of reactions that can be added to a message
-//@top_reactions List of reactions to be shown at the top
-//@recent_reactions List of recently used reactions
-//@popular_reactions List of popular reactions
-//@allow_custom_emoji True, if any custom emoji reaction can be added by Telegram Premium subscribers
-//@are_tags True, if the reactions will be tags and the message can be found by them
-//@unavailability_reason The reason why the current user can't add reactions to the message, despite some other users can; may be null if none
-availableReactions top_reactions:vector<availableReaction> recent_reactions:vector<availableReaction> popular_reactions:vector<availableReaction> allow_custom_emoji:Bool are_tags:Bool unavailability_reason:ReactionUnavailabilityReason = AvailableReactions;
-
-//@description Contains information about an emoji reaction
-//@emoji Text representation of the reaction
-//@title Reaction title
-//@is_active True, if the reaction can be added to new messages and enabled in chats
-//@static_icon Static icon for the reaction
-//@appear_animation Appear animation for the reaction
-//@select_animation Select animation for the reaction
-//@activate_animation Activate animation for the reaction
-//@effect_animation Effect animation for the reaction
-//@around_animation Around animation for the reaction; may be null
-//@center_animation Center animation for the reaction; may be null
-emojiReaction emoji:string title:string is_active:Bool static_icon:sticker appear_animation:sticker select_animation:sticker activate_animation:sticker effect_animation:sticker around_animation:sticker center_animation:sticker = EmojiReaction;
-
-
-//@class ReactionUnavailabilityReason @description Describes why the current user can't add reactions to the message, despite some other users can
-
-//@description The user is an anonymous administrator in the supergroup, but isn't a creator of it, so they can't vote on behalf of the supergroup
-reactionUnavailabilityReasonAnonymousAdministrator = ReactionUnavailabilityReason;
-
-//@description The user isn't a member of the supergroup and can't send messages and reactions there without joining
-reactionUnavailabilityReasonGuest = ReactionUnavailabilityReason;
-
-
-//@description Represents a list of animations @animations List of animations
-animations animations:vector<animation> = Animations;
-
-
-//@class DiceStickers @description Contains animated stickers which must be used for dice animation rendering
-
-//@description A regular animated sticker @sticker The animated sticker with the dice animation
-diceStickersRegular sticker:sticker = DiceStickers;
-
-//@description Animated stickers to be combined into a slot machine
-//@background The animated sticker with the slot machine background. The background animation must start playing after all reel animations finish
-//@lever The animated sticker with the lever animation. The lever animation must play once in the initial dice state
-//@left_reel The animated sticker with the left reel
-//@center_reel The animated sticker with the center reel
-//@right_reel The animated sticker with the right reel
-diceStickersSlotMachine background:sticker lever:sticker left_reel:sticker center_reel:sticker right_reel:sticker = DiceStickers;
-
-
-//@description Represents the result of an importContacts request
-//@user_ids User identifiers of the imported contacts in the same order as they were specified in the request; 0 if the contact is not yet a registered user
-//@importer_count The number of users that imported the corresponding contact; 0 for already registered users or if unavailable
-importedContacts user_ids:vector<int53> importer_count:vector<int32> = ImportedContacts;
-
-
-//@class SpeechRecognitionResult @description Describes result of speech recognition in a voice note
-
-//@description The speech recognition is ongoing @partial_text Partially recognized text
-speechRecognitionResultPending partial_text:string = SpeechRecognitionResult;
-
-//@description The speech recognition successfully finished @text Recognized text
-speechRecognitionResultText text:string = SpeechRecognitionResult;
-
-//@description The speech recognition failed @error Recognition error. An error with a message "MSG_VOICE_TOO_LONG" is returned when media duration is too big to be recognized
-speechRecognitionResultError error:error = SpeechRecognitionResult;
-
-
-//@description Describes a connection of the bot with a business account
-//@id Unique identifier of the connection
-//@user_id Identifier of the business user that created the connection
-//@user_chat_id Chat identifier of the private chat with the user
-//@date Point in time (Unix timestamp) when the connection was established
-//@rights Rights of the bot; may be null if the connection was disabled
-//@is_enabled True, if the connection is enabled; false otherwise
-businessConnection id:string user_id:int53 user_chat_id:int53 date:int32 rights:businessBotRights is_enabled:Bool = BusinessConnection;
-
-
-//@description Describes a color to highlight a bot added to attachment menu @light_color Color in the RGB format for light themes @dark_color Color in the RGB format for dark themes
-attachmentMenuBotColor light_color:int32 dark_color:int32 = AttachmentMenuBotColor;
-
-//@description Represents a bot, which can be added to attachment or side menu
-//@bot_user_id User identifier of the bot
-//@supports_self_chat True, if the bot supports opening from attachment menu in the chat with the bot
-//@supports_user_chats True, if the bot supports opening from attachment menu in private chats with ordinary users
-//@supports_bot_chats True, if the bot supports opening from attachment menu in private chats with other bots
-//@supports_group_chats True, if the bot supports opening from attachment menu in basic group and supergroup chats
-//@supports_channel_chats True, if the bot supports opening from attachment menu in channel chats
-//@request_write_access True, if the user must be asked for the permission to send messages to the bot
-//@is_added True, if the bot was explicitly added by the user. If the bot isn't added, then on the first bot launch toggleBotIsAddedToAttachmentMenu must be called and the bot must be added or removed
-//@show_in_attachment_menu True, if the bot must be shown in the attachment menu
-//@show_in_side_menu True, if the bot must be shown in the side menu
-//@show_disclaimer_in_side_menu True, if a disclaimer, why the bot is shown in the side menu, is needed
-//@name Name for the bot in attachment menu
-//@name_color Color to highlight selected name of the bot if appropriate; may be null
-//@default_icon Default icon for the bot in SVG format; may be null
-//@ios_static_icon Icon for the bot in SVG format for the official iOS app; may be null
-//@ios_animated_icon Icon for the bot in TGS format for the official iOS app; may be null
-//@ios_side_menu_icon Icon for the bot in PNG format for the official iOS app side menu; may be null
-//@android_icon Icon for the bot in TGS format for the official Android app; may be null
-//@android_side_menu_icon Icon for the bot in SVG format for the official Android app side menu; may be null
-//@macos_icon Icon for the bot in TGS format for the official native macOS app; may be null
-//@macos_side_menu_icon Icon for the bot in PNG format for the official macOS app side menu; may be null
-//@icon_color Color to highlight selected icon of the bot if appropriate; may be null
-//@web_app_placeholder Default placeholder for opened Web Apps in SVG format; may be null
-attachmentMenuBot bot_user_id:int53 supports_self_chat:Bool supports_user_chats:Bool supports_bot_chats:Bool supports_group_chats:Bool supports_channel_chats:Bool request_write_access:Bool is_added:Bool show_in_attachment_menu:Bool show_in_side_menu:Bool show_disclaimer_in_side_menu:Bool name:string name_color:attachmentMenuBotColor default_icon:file ios_static_icon:file ios_animated_icon:file ios_side_menu_icon:file android_icon:file android_side_menu_icon:file macos_icon:file macos_side_menu_icon:file icon_color:attachmentMenuBotColor web_app_placeholder:file = AttachmentMenuBot;
-
-//@description Information about the message sent by answerWebAppQuery @inline_message_id Identifier of the sent inline message, if known
-sentWebAppMessage inline_message_id:string = SentWebAppMessage;
-
-
-//@class BotWriteAccessAllowReason @description Describes a reason why a bot was allowed to write messages to the current user
-
-//@description The user connected a website by logging in using Telegram Login Widget on it @domain_name Domain name of the connected website
-botWriteAccessAllowReasonConnectedWebsite domain_name:string = BotWriteAccessAllowReason;
-
-//@description The user added the bot to attachment or side menu using toggleBotIsAddedToAttachmentMenu
-botWriteAccessAllowReasonAddedToAttachmentMenu = BotWriteAccessAllowReason;
-
-//@description The user launched a Web App using getWebAppLinkUrl @web_app Information about the Web App
-botWriteAccessAllowReasonLaunchedWebApp web_app:webApp = BotWriteAccessAllowReason;
-
-//@description The user accepted bot's request to send messages with allowBotToSendMessages
-botWriteAccessAllowReasonAcceptedRequest = BotWriteAccessAllowReason;
-
-
-//@description Contains an HTTP URL @url The URL
-httpUrl url:string = HttpUrl;
-
-
-//@description Contains an HTTPS URL, which can be used to get information about a user @url The URL @expires_in Left time for which the link is valid, in seconds; 0 if the link is a public username link
-userLink url:string expires_in:int32 = UserLink;
-
-
-//@description Describes allowed types for the target chat
-//@allow_user_chats True, if private chats with ordinary users are allowed
-//@allow_bot_chats True, if private chats with other bots are allowed
-//@allow_group_chats True, if basic group and supergroup chats are allowed
-//@allow_channel_chats True, if channel chats are allowed
-targetChatTypes allow_user_chats:Bool allow_bot_chats:Bool allow_group_chats:Bool allow_channel_chats:Bool = TargetChatTypes;
-
-
-//@class TargetChat @description Describes the target chat to be opened
-
-//@description The currently opened chat and forum topic must be kept
-targetChatCurrent = TargetChat;
-
-//@description The chat needs to be chosen by the user among chats of the specified types @types Allowed types for the chat
-targetChatChosen types:targetChatTypes = TargetChat;
-
-//@description The chat needs to be open with the provided internal link @link An internal link pointing to the chat
-targetChatInternalLink link:InternalLinkType = TargetChat;
-
-
-//@class InputInlineQueryResult @description Represents a single result of an inline query; for bots only
-
-//@description Represents a link to an animated GIF or an animated (i.e., without sound) H.264/MPEG-4 AVC video
-//@id Unique identifier of the query result
-//@title Title of the query result
-//@thumbnail_url URL of the result thumbnail (JPEG, GIF, or MPEG4), if it exists
-//@thumbnail_mime_type MIME type of the video thumbnail. If non-empty, must be one of "image/jpeg", "image/gif" and "video/mp4"
-//@video_url The URL of the video file (file size must not exceed 1MB)
-//@video_mime_type MIME type of the video file. Must be one of "image/gif" and "video/mp4"
-//@video_duration Duration of the video, in seconds
-//@video_width Width of the video
-//@video_height Height of the video
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageAnimation, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultAnimation id:string title:string thumbnail_url:string thumbnail_mime_type:string video_url:string video_mime_type:string video_duration:int32 video_width:int32 video_height:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents a link to an article or web page
-//@id Unique identifier of the query result
-//@url URL of the result, if it exists
-//@title Title of the result
-//@param_description A short description of the result
-//@thumbnail_url URL of the result thumbnail, if it exists
-//@thumbnail_width Thumbnail width, if known
-//@thumbnail_height Thumbnail height, if known
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultArticle id:string url:string title:string description:string thumbnail_url:string thumbnail_width:int32 thumbnail_height:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents a link to an MP3 audio file
-//@id Unique identifier of the query result
-//@title Title of the audio file
-//@performer Performer of the audio file
-//@audio_url The URL of the audio file
-//@audio_duration Audio file duration, in seconds
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageAudio, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultAudio id:string title:string performer:string audio_url:string audio_duration:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents a user contact
-//@id Unique identifier of the query result
-//@contact User contact
-//@thumbnail_url URL of the result thumbnail, if it exists
-//@thumbnail_width Thumbnail width, if known
-//@thumbnail_height Thumbnail height, if known
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultContact id:string contact:contact thumbnail_url:string thumbnail_width:int32 thumbnail_height:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents a link to a file
-//@id Unique identifier of the query result
-//@title Title of the resulting file
-//@param_description Short description of the result, if known
-//@document_url URL of the file
-//@mime_type MIME type of the file content; only "application/pdf" and "application/zip" are currently allowed
-//@thumbnail_url The URL of the file thumbnail, if it exists
-//@thumbnail_width Width of the thumbnail
-//@thumbnail_height Height of the thumbnail
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageDocument, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultDocument id:string title:string description:string document_url:string mime_type:string thumbnail_url:string thumbnail_width:int32 thumbnail_height:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents a game
-//@id Unique identifier of the query result
-//@game_short_name Short name of the game
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-inputInlineQueryResultGame id:string game_short_name:string reply_markup:ReplyMarkup = InputInlineQueryResult;
-
-//@description Represents a point on the map
-//@id Unique identifier of the query result
-//@location Location result
-//@live_period Amount of time relative to the message sent time until the location can be updated, in seconds
-//@title Title of the result
-//@thumbnail_url URL of the result thumbnail, if it exists
-//@thumbnail_width Thumbnail width, if known
-//@thumbnail_height Thumbnail height, if known
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultLocation id:string location:location live_period:int32 title:string thumbnail_url:string thumbnail_width:int32 thumbnail_height:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents link to a JPEG image
-//@id Unique identifier of the query result
-//@title Title of the result, if known
-//@param_description A short description of the result, if known
-//@thumbnail_url URL of the photo thumbnail, if it exists
-//@photo_url The URL of the JPEG photo (photo size must not exceed 5MB)
-//@photo_width Width of the photo
-//@photo_height Height of the photo
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessagePhoto, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultPhoto id:string title:string description:string thumbnail_url:string photo_url:string photo_width:int32 photo_height:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents a link to a WEBP, TGS, or WEBM sticker
-//@id Unique identifier of the query result
-//@thumbnail_url URL of the sticker thumbnail, if it exists
-//@sticker_url The URL of the WEBP, TGS, or WEBM sticker (sticker file size must not exceed 5MB)
-//@sticker_width Width of the sticker
-//@sticker_height Height of the sticker
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageSticker, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultSticker id:string thumbnail_url:string sticker_url:string sticker_width:int32 sticker_height:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents information about a venue
-//@id Unique identifier of the query result
-//@venue Venue result
-//@thumbnail_url URL of the result thumbnail, if it exists
-//@thumbnail_width Thumbnail width, if known
-//@thumbnail_height Thumbnail height, if known
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultVenue id:string venue:venue thumbnail_url:string thumbnail_width:int32 thumbnail_height:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents a link to a page containing an embedded video player or a video file
-//@id Unique identifier of the query result
-//@title Title of the result
-//@param_description A short description of the result, if known
-//@thumbnail_url The URL of the video thumbnail (JPEG), if it exists
-//@video_url URL of the embedded video player or video file
-//@mime_type MIME type of the content of the video URL, only "text/html" or "video/mp4" are currently supported
-//@video_width Width of the video
-//@video_height Height of the video
-//@video_duration Video duration, in seconds
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageVideo, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultVideo id:string title:string description:string thumbnail_url:string video_url:string mime_type:string video_width:int32 video_height:int32 video_duration:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-//@description Represents a link to an opus-encoded audio file within an OGG container, single channel audio
-//@id Unique identifier of the query result
-//@title Title of the voice note
-//@voice_note_url The URL of the voice note file
-//@voice_note_duration Duration of the voice note, in seconds
-//@reply_markup The message reply markup; pass null if none. Must be of type replyMarkupInlineKeyboard or null
-//@input_message_content The content of the message to be sent. Must be one of the following types: inputMessageText, inputMessageVoiceNote, inputMessageInvoice, inputMessageLocation, inputMessageVenue or inputMessageContact
-inputInlineQueryResultVoiceNote id:string title:string voice_note_url:string voice_note_duration:int32 reply_markup:ReplyMarkup input_message_content:InputMessageContent = InputInlineQueryResult;
-
-
-//@class InlineQueryResult @description Represents a single result of an inline query
-
-//@description Represents a link to an article or web page
-//@id Unique identifier of the query result
-//@url URL of the result, if it exists
-//@title Title of the result
-//@param_description A short description of the result
-//@thumbnail Result thumbnail in JPEG format; may be null
-inlineQueryResultArticle id:string url:string title:string description:string thumbnail:thumbnail = InlineQueryResult;
-
-//@description Represents a user contact
-//@id Unique identifier of the query result
-//@contact A user contact
-//@thumbnail Result thumbnail in JPEG format; may be null
-inlineQueryResultContact id:string contact:contact thumbnail:thumbnail = InlineQueryResult;
-
-//@description Represents a point on the map
-//@id Unique identifier of the query result
-//@location Location result
-//@title Title of the result
-//@thumbnail Result thumbnail in JPEG format; may be null
-inlineQueryResultLocation id:string location:location title:string thumbnail:thumbnail = InlineQueryResult;
-
-//@description Represents information about a venue
-//@id Unique identifier of the query result
-//@venue Venue result
-//@thumbnail Result thumbnail in JPEG format; may be null
-inlineQueryResultVenue id:string venue:venue thumbnail:thumbnail = InlineQueryResult;
-
-//@description Represents information about a game
-//@id Unique identifier of the query result
-//@game Game result
-inlineQueryResultGame id:string game:game = InlineQueryResult;
-
-//@description Represents an animation file
-//@id Unique identifier of the query result
-//@animation Animation file
-//@title Animation title
-inlineQueryResultAnimation id:string animation:animation title:string = InlineQueryResult;
-
-//@description Represents an audio file
-//@id Unique identifier of the query result
-//@audio Audio file
-inlineQueryResultAudio id:string audio:audio = InlineQueryResult;
-
-//@description Represents a document
-//@id Unique identifier of the query result
-//@document Document
-//@title Document title
-//@param_description Document description
-inlineQueryResultDocument id:string document:document title:string description:string = InlineQueryResult;
-
-//@description Represents a photo
-//@id Unique identifier of the query result
-//@photo Photo
-//@title Title of the result, if known
-//@param_description A short description of the result, if known
-inlineQueryResultPhoto id:string photo:photo title:string description:string = InlineQueryResult;
-
-//@description Represents a sticker
-//@id Unique identifier of the query result
-//@sticker Sticker
-inlineQueryResultSticker id:string sticker:sticker = InlineQueryResult;
-
-//@description Represents a video
-//@id Unique identifier of the query result
-//@video Video
-//@title Title of the video
-//@param_description Description of the video
-inlineQueryResultVideo id:string video:video title:string description:string = InlineQueryResult;
-
-//@description Represents a voice note
-//@id Unique identifier of the query result
-//@voice_note Voice note
-//@title Title of the voice note
-inlineQueryResultVoiceNote id:string voice_note:voiceNote title:string = InlineQueryResult;
-
-
-//@class InlineQueryResultsButtonType @description Represents type of button in results of inline query
-
-//@description Describes the button that opens a private chat with the bot and sends a start message to the bot with the given parameter @parameter The parameter for the bot start message
-inlineQueryResultsButtonTypeStartBot parameter:string = InlineQueryResultsButtonType;
-
-//@description Describes the button that opens a Web App by calling getWebAppUrl @url An HTTP URL to pass to getWebAppUrl
-inlineQueryResultsButtonTypeWebApp url:string = InlineQueryResultsButtonType;
-
-
-//@description Represents a button to be shown above inline query results @text The text of the button @type Type of the button
-inlineQueryResultsButton text:string type:InlineQueryResultsButtonType = InlineQueryResultsButton;
-
-
-//@description Represents the results of the inline query. Use sendInlineQueryResultMessage to send the result of the query
-//@inline_query_id Unique identifier of the inline query
-//@button Button to be shown above inline query results; may be null
-//@results Results of the query
-//@next_offset The offset for the next request. If empty, then there are no more results
-inlineQueryResults inline_query_id:int64 button:inlineQueryResultsButton results:vector<InlineQueryResult> next_offset:string = InlineQueryResults;
-
-
-//@description Represents an inline message that can be sent via the bot
-//@id Unique identifier for the message
-//@expiration_date Point in time (Unix timestamp) when the message can't be used anymore
-preparedInlineMessageId id:string expiration_date:int32 = PreparedInlineMessageId;
-
-//@description Represents a ready to send inline message. Use sendInlineQueryResultMessage to send the message
-//@inline_query_id Unique identifier of the inline query to pass to sendInlineQueryResultMessage
-//@result Resulted inline message of the query
-//@chat_types Types of the chats to which the message can be sent
-preparedInlineMessage inline_query_id:int64 result:InlineQueryResult chat_types:targetChatTypes = PreparedInlineMessage;
-
-
-//@class CallbackQueryPayload @description Represents a payload of a callback query
-
-//@description The payload for a general callback button @data Data that was attached to the callback button
-callbackQueryPayloadData data:bytes = CallbackQueryPayload;
-
-//@description The payload for a callback button requiring password @password The 2-step verification password for the current user @data Data that was attached to the callback button
-callbackQueryPayloadDataWithPassword password:string data:bytes = CallbackQueryPayload;
-
-//@description The payload for a game callback button @game_short_name A short name of the game that was attached to the callback button
-callbackQueryPayloadGame game_short_name:string = CallbackQueryPayload;
-
-
-//@description Contains a bot's answer to a callback query @text Text of the answer @show_alert True, if an alert must be shown to the user instead of a toast notification @url URL to be opened
-callbackQueryAnswer text:string show_alert:Bool url:string = CallbackQueryAnswer;
-
-
-//@description Contains the result of a custom request @result A JSON-serialized result
-customRequestResult result:string = CustomRequestResult;
-
-
-//@description Contains one row of the game high score table @position Position in the high score table @user_id User identifier @score User score
-gameHighScore position:int32 user_id:int53 score:int32 = GameHighScore;
-
-//@description Contains a list of game high scores @scores A list of game high scores
-gameHighScores scores:vector<gameHighScore> = GameHighScores;
-
-
-//@class ChatEventAction @description Represents a chat event
-
-//@description A message was edited @old_message The original message before the edit @new_message The message after it was edited
-chatEventMessageEdited old_message:message new_message:message = ChatEventAction;
-
-//@description A message was deleted @message Deleted message @can_report_anti_spam_false_positive True, if the message deletion can be reported via reportSupergroupAntiSpamFalsePositive
-chatEventMessageDeleted message:message can_report_anti_spam_false_positive:Bool = ChatEventAction;
-
-//@description A message was pinned @message Pinned message
-chatEventMessagePinned message:message = ChatEventAction;
-
-//@description A message was unpinned @message Unpinned message
-chatEventMessageUnpinned message:message = ChatEventAction;
-
-//@description A poll in a message was stopped @message The message with the poll
-chatEventPollStopped message:message = ChatEventAction;
-
-//@description A new member joined the chat
-chatEventMemberJoined = ChatEventAction;
-
-//@description A new member joined the chat via an invite link @invite_link Invite link used to join the chat @via_chat_folder_invite_link True, if the user has joined the chat using an invite link for a chat folder
-chatEventMemberJoinedByInviteLink invite_link:chatInviteLink via_chat_folder_invite_link:Bool = ChatEventAction;
-
-//@description A new member was accepted to the chat by an administrator @approver_user_id User identifier of the chat administrator, approved user join request @invite_link Invite link used to join the chat; may be null
-chatEventMemberJoinedByRequest approver_user_id:int53 invite_link:chatInviteLink = ChatEventAction;
-
-//@description A new chat member was invited @user_id New member user identifier @status New member status
-chatEventMemberInvited user_id:int53 status:ChatMemberStatus = ChatEventAction;
-
-//@description A member left the chat
-chatEventMemberLeft = ChatEventAction;
-
-//@description A chat member has gained/lost administrator status, or the list of their administrator privileges has changed @user_id Affected chat member user identifier @old_status Previous status of the chat member @new_status New status of the chat member
-chatEventMemberPromoted user_id:int53 old_status:ChatMemberStatus new_status:ChatMemberStatus = ChatEventAction;
-
-//@description A chat member was restricted/unrestricted or banned/unbanned, or the list of their restrictions has changed @member_id Affected chat member identifier @old_status Previous status of the chat member @new_status New status of the chat member
-chatEventMemberRestricted member_id:MessageSender old_status:ChatMemberStatus new_status:ChatMemberStatus = ChatEventAction;
-
-//@description A chat member extended their subscription to the chat @user_id Affected chat member user identifier @old_status Previous status of the chat member @new_status New status of the chat member
-chatEventMemberSubscriptionExtended user_id:int53 old_status:ChatMemberStatus new_status:ChatMemberStatus = ChatEventAction;
-
-//@description The chat available reactions were changed @old_available_reactions Previous chat available reactions @new_available_reactions New chat available reactions
-chatEventAvailableReactionsChanged old_available_reactions:ChatAvailableReactions new_available_reactions:ChatAvailableReactions = ChatEventAction;
-
-//@description The chat background was changed @old_background Previous background; may be null if none @new_background New background; may be null if none
-chatEventBackgroundChanged old_background:chatBackground new_background:chatBackground = ChatEventAction;
-
-//@description The chat description was changed @old_description Previous chat description @new_description New chat description
-chatEventDescriptionChanged old_description:string new_description:string = ChatEventAction;
-
-//@description The chat emoji status was changed @old_emoji_status Previous emoji status; may be null if none @new_emoji_status New emoji status; may be null if none
-chatEventEmojiStatusChanged old_emoji_status:emojiStatus new_emoji_status:emojiStatus = ChatEventAction;
-
-//@description The linked chat of a supergroup was changed @old_linked_chat_id Previous supergroup linked chat identifier @new_linked_chat_id New supergroup linked chat identifier
-chatEventLinkedChatChanged old_linked_chat_id:int53 new_linked_chat_id:int53 = ChatEventAction;
-
-//@description The supergroup location was changed @old_location Previous location; may be null @new_location New location; may be null
-chatEventLocationChanged old_location:chatLocation new_location:chatLocation = ChatEventAction;
-
-//@description The message auto-delete timer was changed @old_message_auto_delete_time Previous value of message_auto_delete_time @new_message_auto_delete_time New value of message_auto_delete_time
-chatEventMessageAutoDeleteTimeChanged old_message_auto_delete_time:int32 new_message_auto_delete_time:int32 = ChatEventAction;
-
-//@description The chat permissions were changed @old_permissions Previous chat permissions @new_permissions New chat permissions
-chatEventPermissionsChanged old_permissions:chatPermissions new_permissions:chatPermissions = ChatEventAction;
-
-//@description The chat photo was changed @old_photo Previous chat photo value; may be null @new_photo New chat photo value; may be null
-chatEventPhotoChanged old_photo:chatPhoto new_photo:chatPhoto = ChatEventAction;
-
-//@description The slow_mode_delay setting of a supergroup was changed @old_slow_mode_delay Previous value of slow_mode_delay, in seconds @new_slow_mode_delay New value of slow_mode_delay, in seconds
-chatEventSlowModeDelayChanged old_slow_mode_delay:int32 new_slow_mode_delay:int32 = ChatEventAction;
-
-//@description The supergroup sticker set was changed @old_sticker_set_id Previous identifier of the chat sticker set; 0 if none @new_sticker_set_id New identifier of the chat sticker set; 0 if none
-chatEventStickerSetChanged old_sticker_set_id:int64 new_sticker_set_id:int64 = ChatEventAction;
-
-//@description The supergroup sticker set with allowed custom emoji was changed @old_sticker_set_id Previous identifier of the chat sticker set; 0 if none @new_sticker_set_id New identifier of the chat sticker set; 0 if none
-chatEventCustomEmojiStickerSetChanged old_sticker_set_id:int64 new_sticker_set_id:int64 = ChatEventAction;
-
-//@description The chat title was changed @old_title Previous chat title @new_title New chat title
-chatEventTitleChanged old_title:string new_title:string = ChatEventAction;
-
-//@description The chat editable username was changed @old_username Previous chat username @new_username New chat username
-chatEventUsernameChanged old_username:string new_username:string = ChatEventAction;
-
-//@description The chat active usernames were changed @old_usernames Previous list of active usernames @new_usernames New list of active usernames
-chatEventActiveUsernamesChanged old_usernames:vector<string> new_usernames:vector<string> = ChatEventAction;
-
-//@description The chat accent color or background custom emoji were changed
-//@old_accent_color_id Previous identifier of chat accent color
-//@old_background_custom_emoji_id Previous identifier of the custom emoji; 0 if none
-//@new_accent_color_id New identifier of chat accent color
-//@new_background_custom_emoji_id New identifier of the custom emoji; 0 if none
-chatEventAccentColorChanged old_accent_color_id:int32 old_background_custom_emoji_id:int64 new_accent_color_id:int32 new_background_custom_emoji_id:int64 = ChatEventAction;
-
-//@description The chat's profile accent color or profile background custom emoji were changed
-//@old_profile_accent_color_id Previous identifier of chat's profile accent color; -1 if none
-//@old_profile_background_custom_emoji_id Previous identifier of the custom emoji; 0 if none
-//@new_profile_accent_color_id New identifier of chat's profile accent color; -1 if none
-//@new_profile_background_custom_emoji_id New identifier of the custom emoji; 0 if none
-chatEventProfileAccentColorChanged old_profile_accent_color_id:int32 old_profile_background_custom_emoji_id:int64 new_profile_accent_color_id:int32 new_profile_background_custom_emoji_id:int64 = ChatEventAction;
-
-//@description The has_protected_content setting of a channel was toggled @has_protected_content New value of has_protected_content
-chatEventHasProtectedContentToggled has_protected_content:Bool = ChatEventAction;
-
-//@description The can_invite_users permission of a supergroup chat was toggled @can_invite_users New value of can_invite_users permission
-chatEventInvitesToggled can_invite_users:Bool = ChatEventAction;
-
-//@description The is_all_history_available setting of a supergroup was toggled @is_all_history_available New value of is_all_history_available
-chatEventIsAllHistoryAvailableToggled is_all_history_available:Bool = ChatEventAction;
-
-//@description The has_aggressive_anti_spam_enabled setting of a supergroup was toggled @has_aggressive_anti_spam_enabled New value of has_aggressive_anti_spam_enabled
-chatEventHasAggressiveAntiSpamEnabledToggled has_aggressive_anti_spam_enabled:Bool = ChatEventAction;
-
-//@description The sign_messages setting of a channel was toggled @sign_messages New value of sign_messages
-chatEventSignMessagesToggled sign_messages:Bool = ChatEventAction;
-
-//@description The show_message_sender setting of a channel was toggled @show_message_sender New value of show_message_sender
-chatEventShowMessageSenderToggled show_message_sender:Bool = ChatEventAction;
-
-//@description A chat invite link was edited @old_invite_link Previous information about the invite link @new_invite_link New information about the invite link
-chatEventInviteLinkEdited old_invite_link:chatInviteLink new_invite_link:chatInviteLink = ChatEventAction;
-
-//@description A chat invite link was revoked @invite_link The invite link
-chatEventInviteLinkRevoked invite_link:chatInviteLink = ChatEventAction;
-
-//@description A revoked chat invite link was deleted @invite_link The invite link
-chatEventInviteLinkDeleted invite_link:chatInviteLink = ChatEventAction;
-
-//@description A video chat was created @group_call_id Identifier of the video chat. The video chat can be received through the method getGroupCall
-chatEventVideoChatCreated group_call_id:int32 = ChatEventAction;
-
-//@description A video chat was ended @group_call_id Identifier of the video chat. The video chat can be received through the method getGroupCall
-chatEventVideoChatEnded group_call_id:int32 = ChatEventAction;
-
-//@description The mute_new_participants setting of a video chat was toggled @mute_new_participants New value of the mute_new_participants setting
-chatEventVideoChatMuteNewParticipantsToggled mute_new_participants:Bool = ChatEventAction;
-
-//@description A video chat participant was muted or unmuted @participant_id Identifier of the affected group call participant @is_muted New value of is_muted
-chatEventVideoChatParticipantIsMutedToggled participant_id:MessageSender is_muted:Bool = ChatEventAction;
-
-//@description A video chat participant volume level was changed @participant_id Identifier of the affected group call participant @volume_level New value of volume_level; 1-20000 in hundreds of percents
-chatEventVideoChatParticipantVolumeLevelChanged participant_id:MessageSender volume_level:int32 = ChatEventAction;
-
-//@description The is_forum setting of a channel was toggled @is_forum New value of is_forum
-chatEventIsForumToggled is_forum:Bool = ChatEventAction;
-
-//@description A new forum topic was created @topic_info Information about the topic
-chatEventForumTopicCreated topic_info:forumTopicInfo = ChatEventAction;
-
-//@description A forum topic was edited @old_topic_info Old information about the topic @new_topic_info New information about the topic
-chatEventForumTopicEdited old_topic_info:forumTopicInfo new_topic_info:forumTopicInfo = ChatEventAction;
-
-//@description A forum topic was closed or reopened @topic_info New information about the topic
-chatEventForumTopicToggleIsClosed topic_info:forumTopicInfo = ChatEventAction;
-
-//@description The General forum topic was hidden or unhidden @topic_info New information about the topic
-chatEventForumTopicToggleIsHidden topic_info:forumTopicInfo = ChatEventAction;
-
-//@description A forum topic was deleted @topic_info Information about the topic
-chatEventForumTopicDeleted topic_info:forumTopicInfo = ChatEventAction;
-
-//@description A pinned forum topic was changed @old_topic_info Information about the old pinned topic; may be null @new_topic_info Information about the new pinned topic; may be null
-chatEventForumTopicPinned old_topic_info:forumTopicInfo new_topic_info:forumTopicInfo = ChatEventAction;
-
-//@description Represents a chat event
-//@id Chat event identifier
-//@date Point in time (Unix timestamp) when the event happened
-//@member_id Identifier of the user or chat who performed the action
-//@action The action
-chatEvent id:int64 date:int32 member_id:MessageSender action:ChatEventAction = ChatEvent;
-
-//@description Contains a list of chat events @events List of events
-chatEvents events:vector<chatEvent> = ChatEvents;
-
-//@description Represents a set of filters used to obtain a chat event log
-//@message_edits True, if message edits need to be returned
-//@message_deletions True, if message deletions need to be returned
-//@message_pins True, if pin/unpin events need to be returned
-//@member_joins True, if members joining events need to be returned
-//@member_leaves True, if members leaving events need to be returned
-//@member_invites True, if invited member events need to be returned
-//@member_promotions True, if member promotion/demotion events need to be returned
-//@member_restrictions True, if member restricted/unrestricted/banned/unbanned events need to be returned
-//@info_changes True, if changes in chat information need to be returned
-//@setting_changes True, if changes in chat settings need to be returned
-//@invite_link_changes True, if changes to invite links need to be returned
-//@video_chat_changes True, if video chat actions need to be returned
-//@forum_changes True, if forum-related actions need to be returned
-//@subscription_extensions True, if subscription extensions need to be returned
-chatEventLogFilters message_edits:Bool message_deletions:Bool message_pins:Bool member_joins:Bool member_leaves:Bool member_invites:Bool member_promotions:Bool member_restrictions:Bool info_changes:Bool setting_changes:Bool invite_link_changes:Bool video_chat_changes:Bool forum_changes:Bool subscription_extensions:Bool = ChatEventLogFilters;
-
-
-//@class LanguagePackStringValue @description Represents the value of a string in a language pack
-
-//@description An ordinary language pack string @value String value
-languagePackStringValueOrdinary value:string = LanguagePackStringValue;
-
-//@description A language pack string which has different forms based on the number of some object it mentions. See https://www.unicode.org/cldr/charts/latest/supplemental/language_plural_rules.html for more information
-//@zero_value Value for zero objects
-//@one_value Value for one object
-//@two_value Value for two objects
-//@few_value Value for few objects
-//@many_value Value for many objects
-//@other_value Default value
-languagePackStringValuePluralized zero_value:string one_value:string two_value:string few_value:string many_value:string other_value:string = LanguagePackStringValue;
-
-//@description A deleted language pack string, the value must be taken from the built-in English language pack
-languagePackStringValueDeleted = LanguagePackStringValue;
-
-
-//@description Represents one language pack string @key String key @value String value; pass null if the string needs to be taken from the built-in English language pack
-languagePackString key:string value:LanguagePackStringValue = LanguagePackString;
-
-//@description Contains a list of language pack strings @strings A list of language pack strings
-languagePackStrings strings:vector<languagePackString> = LanguagePackStrings;
-
-//@description Contains information about a language pack
-//@id Unique language pack identifier
-//@base_language_pack_id Identifier of a base language pack; may be empty. If a string is missed in the language pack, then it must be fetched from base language pack. Unsupported in custom language packs
-//@name Language name
-//@native_name Name of the language in that language
-//@plural_code A language code to be used to apply plural forms. See https://www.unicode.org/cldr/charts/latest/supplemental/language_plural_rules.html for more information
-//@is_official True, if the language pack is official
-//@is_rtl True, if the language pack strings are RTL
-//@is_beta True, if the language pack is a beta language pack
-//@is_installed True, if the language pack is installed by the current user
-//@total_string_count Total number of non-deleted strings from the language pack
-//@translated_string_count Total number of translated strings from the language pack
-//@local_string_count Total number of non-deleted strings from the language pack available locally
-//@translation_url Link to language translation interface; empty for custom local language packs
-languagePackInfo id:string base_language_pack_id:string name:string native_name:string plural_code:string is_official:Bool is_rtl:Bool is_beta:Bool is_installed:Bool total_string_count:int32 translated_string_count:int32 local_string_count:int32 translation_url:string = LanguagePackInfo;
-
-//@description Contains information about the current localization target @language_packs List of available language packs for this application
-localizationTargetInfo language_packs:vector<languagePackInfo> = LocalizationTargetInfo;
-
-
-//@class PremiumLimitType @description Describes type of limit, increased for Premium users
-
-//@description The maximum number of joined supergroups and channels
-premiumLimitTypeSupergroupCount = PremiumLimitType;
-
-//@description The maximum number of pinned chats in the main chat list
-premiumLimitTypePinnedChatCount = PremiumLimitType;
-
-//@description The maximum number of created public chats
-premiumLimitTypeCreatedPublicChatCount = PremiumLimitType;
-
-//@description The maximum number of saved animations
-premiumLimitTypeSavedAnimationCount = PremiumLimitType;
-
-//@description The maximum number of favorite stickers
-premiumLimitTypeFavoriteStickerCount = PremiumLimitType;
-
-//@description The maximum number of chat folders
-premiumLimitTypeChatFolderCount = PremiumLimitType;
-
-//@description The maximum number of pinned and always included, or always excluded chats in a chat folder
-premiumLimitTypeChatFolderChosenChatCount = PremiumLimitType;
-
-//@description The maximum number of pinned chats in the archive chat list
-premiumLimitTypePinnedArchivedChatCount = PremiumLimitType;
-
-//@description The maximum number of pinned Saved Messages topics
-premiumLimitTypePinnedSavedMessagesTopicCount = PremiumLimitType;
-
-//@description The maximum length of sent media caption
-premiumLimitTypeCaptionLength = PremiumLimitType;
-
-//@description The maximum length of the user's bio
-premiumLimitTypeBioLength = PremiumLimitType;
-
-//@description The maximum number of invite links for a chat folder
-premiumLimitTypeChatFolderInviteLinkCount = PremiumLimitType;
-
-//@description The maximum number of added shareable chat folders
-premiumLimitTypeShareableChatFolderCount = PremiumLimitType;
-
-//@description The maximum number of active stories
-premiumLimitTypeActiveStoryCount = PremiumLimitType;
-
-//@description The maximum number of stories sent per week
-premiumLimitTypeWeeklySentStoryCount = PremiumLimitType;
-
-//@description The maximum number of stories sent per month
-premiumLimitTypeMonthlySentStoryCount = PremiumLimitType;
-
-//@description The maximum length of captions of sent stories
-premiumLimitTypeStoryCaptionLength = PremiumLimitType;
-
-//@description The maximum number of suggested reaction areas on a story
-premiumLimitTypeStorySuggestedReactionAreaCount = PremiumLimitType;
-
-//@description The maximum number of received similar chats
-premiumLimitTypeSimilarChatCount = PremiumLimitType;
-
-
-//@class PremiumFeature @description Describes a feature available to Premium users
-
-//@description Increased limits
-premiumFeatureIncreasedLimits = PremiumFeature;
-
-//@description Increased maximum upload file size
-premiumFeatureIncreasedUploadFileSize = PremiumFeature;
-
-//@description Improved download speed
-premiumFeatureImprovedDownloadSpeed = PremiumFeature;
-
-//@description The ability to convert voice notes to text
-premiumFeatureVoiceRecognition = PremiumFeature;
-
-//@description Disabled ads
-premiumFeatureDisabledAds = PremiumFeature;
-
-//@description Allowed to use more reactions
-premiumFeatureUniqueReactions = PremiumFeature;
-
-//@description Allowed to use premium stickers with unique effects
-premiumFeatureUniqueStickers = PremiumFeature;
-
-//@description Allowed to use custom emoji stickers in message texts and captions
-premiumFeatureCustomEmoji = PremiumFeature;
-
-//@description Ability to change position of the main chat list, archive and mute all new chats from non-contacts, and completely disable notifications about the user's contacts joined Telegram
-premiumFeatureAdvancedChatManagement = PremiumFeature;
-
-//@description A badge in the user's profile
-premiumFeatureProfileBadge = PremiumFeature;
-
-//@description The ability to show an emoji status along with the user's name
-premiumFeatureEmojiStatus = PremiumFeature;
-
-//@description Profile photo animation on message and chat screens
-premiumFeatureAnimatedProfilePhoto = PremiumFeature;
-
-//@description The ability to set a custom emoji as a forum topic icon
-premiumFeatureForumTopicIcon = PremiumFeature;
-
-//@description Allowed to set a premium application icons
-premiumFeatureAppIcons = PremiumFeature;
-
-//@description Allowed to translate chat messages real-time
-premiumFeatureRealTimeChatTranslation = PremiumFeature;
-
-//@description Allowed to use many additional features for stories
-premiumFeatureUpgradedStories = PremiumFeature;
-
-//@description The ability to boost chats
-premiumFeatureChatBoost = PremiumFeature;
-
-//@description The ability to choose accent color for replies and user profile
-premiumFeatureAccentColor = PremiumFeature;
-
-//@description The ability to set private chat background for both users
-premiumFeatureBackgroundForBoth = PremiumFeature;
-
-//@description The ability to use tags in Saved Messages
-premiumFeatureSavedMessagesTags = PremiumFeature;
-
-//@description The ability to disallow incoming voice and video note messages in private chats using setUserPrivacySettingRules with userPrivacySettingAllowPrivateVoiceAndVideoNoteMessages
-//-and to restrict incoming messages from non-contacts using setNewChatPrivacySettings
-premiumFeatureMessagePrivacy = PremiumFeature;
-
-//@description The ability to view last seen and read times of other users even they can't view last seen or read time for the current user
-premiumFeatureLastSeenTimes = PremiumFeature;
-
-//@description The ability to use Business features
-premiumFeatureBusiness = PremiumFeature;
-
-//@description The ability to use all available message effects
-premiumFeatureMessageEffects = PremiumFeature;
-
-
-//@class BusinessFeature @description Describes a feature available to Business user accounts
-
-//@description The ability to set location
-businessFeatureLocation = BusinessFeature;
-
-//@description The ability to set opening hours
-businessFeatureOpeningHours = BusinessFeature;
-
-//@description The ability to use quick replies
-businessFeatureQuickReplies = BusinessFeature;
-
-//@description The ability to set up a greeting message
-businessFeatureGreetingMessage = BusinessFeature;
-
-//@description The ability to set up an away message
-businessFeatureAwayMessage = BusinessFeature;
-
-//@description The ability to create links to the business account with predefined message text
-businessFeatureAccountLinks = BusinessFeature;
-
-//@description The ability to customize start page
-businessFeatureStartPage = BusinessFeature;
-
-//@description The ability to connect a bot to the account
-businessFeatureBots = BusinessFeature;
-
-//@description The ability to show an emoji status along with the business name
-businessFeatureEmojiStatus = BusinessFeature;
-
-//@description The ability to display folder names for each chat in the chat list
-businessFeatureChatFolderTags = BusinessFeature;
-
-//@description Allowed to use many additional features for stories
-businessFeatureUpgradedStories = BusinessFeature;
-
-
-//@class PremiumStoryFeature @description Describes a story feature available to Premium users
-
-//@description Stories of the current user are displayed before stories of non-Premium contacts, supergroups, and channels
-premiumStoryFeaturePriorityOrder = PremiumStoryFeature;
-
-//@description The ability to hide the fact that the user viewed other's stories
-premiumStoryFeatureStealthMode = PremiumStoryFeature;
-
-//@description The ability to check who opened the current user's stories after they expire
-premiumStoryFeaturePermanentViewsHistory = PremiumStoryFeature;
-
-//@description The ability to set custom expiration duration for stories
-premiumStoryFeatureCustomExpirationDuration = PremiumStoryFeature;
-
-//@description The ability to save other's unprotected stories
-premiumStoryFeatureSaveStories = PremiumStoryFeature;
-
-//@description The ability to use links and formatting in story caption, and use inputStoryAreaTypeLink areas
-premiumStoryFeatureLinksAndFormatting = PremiumStoryFeature;
-
-//@description The ability to choose better quality for viewed stories
-premiumStoryFeatureVideoQuality = PremiumStoryFeature;
-
-
-//@description Contains information about a limit, increased for Premium users @type The type of the limit @default_value Default value of the limit @premium_value Value of the limit for Premium users
-premiumLimit type:PremiumLimitType default_value:int32 premium_value:int32 = PremiumLimit;
-
-//@description Contains information about features, available to Premium users
-//@features The list of available features
-//@limits The list of limits, increased for Premium users
-//@payment_link An internal link to be opened to pay for Telegram Premium if store payment isn't possible; may be null if direct payment isn't available
-premiumFeatures features:vector<PremiumFeature> limits:vector<premiumLimit> payment_link:InternalLinkType = PremiumFeatures;
-
-//@description Contains information about features, available to Business user accounts @features The list of available business features
-businessFeatures features:vector<BusinessFeature> = BusinessFeatures;
-
-
-//@class PremiumSource @description Describes a source from which the Premium features screen is opened
-
-//@description A limit was exceeded @limit_type Type of the exceeded limit
-premiumSourceLimitExceeded limit_type:PremiumLimitType = PremiumSource;
-
-//@description A user tried to use a Premium feature @feature The used feature
-premiumSourceFeature feature:PremiumFeature = PremiumSource;
-
-//@description A user tried to use a Business feature @feature The used feature; pass null if none specific feature was used
-premiumSourceBusinessFeature feature:BusinessFeature = PremiumSource;
-
-//@description A user tried to use a Premium story feature @feature The used feature
-premiumSourceStoryFeature feature:PremiumStoryFeature = PremiumSource;
-
-//@description A user opened an internal link of the type internalLinkTypePremiumFeatures @referrer The referrer from the link
-premiumSourceLink referrer:string = PremiumSource;
-
-//@description A user opened the Premium features screen from settings
-premiumSourceSettings = PremiumSource;
-
-
-//@description Describes a promotion animation for a Premium feature @feature Premium feature @animation Promotion animation for the feature
-premiumFeaturePromotionAnimation feature:PremiumFeature animation:animation = PremiumFeaturePromotionAnimation;
-
-//@description Describes a promotion animation for a Business feature @feature Business feature @animation Promotion animation for the feature
-businessFeaturePromotionAnimation feature:BusinessFeature animation:animation = BusinessFeaturePromotionAnimation;
-
-//@description Contains state of Telegram Premium subscription and promotion videos for Premium features
-//@state Text description of the state of the current Premium subscription; may be empty if the current user has no Telegram Premium subscription
-//@payment_options The list of available options for buying Telegram Premium
-//@animations The list of available promotion animations for Premium features
-//@business_animations The list of available promotion animations for Business features
-premiumState state:formattedText payment_options:vector<premiumStatePaymentOption> animations:vector<premiumFeaturePromotionAnimation> business_animations:vector<businessFeaturePromotionAnimation> = PremiumState;
-
-
-//@class StorePaymentPurpose @description Describes a purpose of an in-store payment
-
-//@description The user subscribing to Telegram Premium @is_restore Pass true if this is a restore of a Telegram Premium purchase; only for App Store @is_upgrade Pass true if this is an upgrade from a monthly subscription to early subscription; only for App Store
-storePaymentPurposePremiumSubscription is_restore:Bool is_upgrade:Bool = StorePaymentPurpose;
-
-//@description The user gifting Telegram Premium to another user
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@user_id Identifiers of the user which will receive Telegram Premium
-//@text Text to show along with the gift codes; 0-getOption("gift_text_length_max") characters. Only Bold, Italic, Underline, Strikethrough, Spoiler, and CustomEmoji entities are allowed
-storePaymentPurposePremiumGift currency:string amount:int53 user_id:int53 text:formattedText = StorePaymentPurpose;
-
-//@description The user boosting a chat by creating Telegram Premium gift codes for other users
-//@boosted_chat_id Identifier of the supergroup or channel chat, which will be automatically boosted by the users for duration of the Premium subscription and which is administered by the user
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@user_ids Identifiers of the users which can activate the gift codes
-//@text Text to show along with the gift codes; 0-getOption("gift_text_length_max") characters. Only Bold, Italic, Underline, Strikethrough, Spoiler, and CustomEmoji entities are allowed
-storePaymentPurposePremiumGiftCodes boosted_chat_id:int53 currency:string amount:int53 user_ids:vector<int53> text:formattedText = StorePaymentPurpose;
-
-//@description The user creating a Telegram Premium giveaway
-//@parameters Giveaway parameters
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-storePaymentPurposePremiumGiveaway parameters:giveawayParameters currency:string amount:int53 = StorePaymentPurpose;
-
-//@description The user creating a Telegram Star giveaway
-//@parameters Giveaway parameters
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@winner_count The number of users to receive Telegram Stars
-//@star_count The number of Telegram Stars to be distributed through the giveaway
-storePaymentPurposeStarGiveaway parameters:giveawayParameters currency:string amount:int53 winner_count:int32 star_count:int53 = StorePaymentPurpose;
-
-//@description The user buying Telegram Stars
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@star_count Number of bought Telegram Stars
-storePaymentPurposeStars currency:string amount:int53 star_count:int53 = StorePaymentPurpose;
-
-//@description The user buying Telegram Stars for other users
-//@user_id Identifier of the user to which Telegram Stars are gifted
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@star_count Number of bought Telegram Stars
-storePaymentPurposeGiftedStars user_id:int53 currency:string amount:int53 star_count:int53 = StorePaymentPurpose;
-
-
-//@class TelegramPaymentPurpose @description Describes a purpose of a payment toward Telegram
-
-//@description The user gifting Telegram Premium to another user
-//@currency ISO 4217 currency code of the payment currency, or "XTR" for payments in Telegram Stars
-//@amount Paid amount, in the smallest units of the currency
-//@user_id Identifier of the user which will receive Telegram Premium
-//@month_count Number of months the Telegram Premium subscription will be active for the user
-//@text Text to show to the user receiving Telegram Premium; 0-getOption("gift_text_length_max") characters. Only Bold, Italic, Underline, Strikethrough, Spoiler, and CustomEmoji entities are allowed
-telegramPaymentPurposePremiumGift currency:string amount:int53 user_id:int53 month_count:int32 text:formattedText = TelegramPaymentPurpose;
-
-//@description The user boosting a chat by creating Telegram Premium gift codes for other users
-//@boosted_chat_id Identifier of the supergroup or channel chat, which will be automatically boosted by the users for duration of the Premium subscription and which is administered by the user
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@user_ids Identifiers of the users which can activate the gift codes
-//@month_count Number of months the Telegram Premium subscription will be active for the users
-//@text Text to show along with the gift codes; 0-getOption("gift_text_length_max") characters. Only Bold, Italic, Underline, Strikethrough, Spoiler, and CustomEmoji entities are allowed
-telegramPaymentPurposePremiumGiftCodes boosted_chat_id:int53 currency:string amount:int53 user_ids:vector<int53> month_count:int32 text:formattedText = TelegramPaymentPurpose;
-
-//@description The user creating a Telegram Premium giveaway
-//@parameters Giveaway parameters
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@winner_count Number of users which will be able to activate the gift codes
-//@month_count Number of months the Telegram Premium subscription will be active for the users
-telegramPaymentPurposePremiumGiveaway parameters:giveawayParameters currency:string amount:int53 winner_count:int32 month_count:int32 = TelegramPaymentPurpose;
-
-//@description The user buying Telegram Stars
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@star_count Number of bought Telegram Stars
-telegramPaymentPurposeStars currency:string amount:int53 star_count:int53 = TelegramPaymentPurpose;
-
-//@description The user buying Telegram Stars for other users
-//@user_id Identifier of the user to which Telegram Stars are gifted
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@star_count Number of bought Telegram Stars
-telegramPaymentPurposeGiftedStars user_id:int53 currency:string amount:int53 star_count:int53 = TelegramPaymentPurpose;
-
-//@description The user creating a Telegram Star giveaway
-//@parameters Giveaway parameters
-//@currency ISO 4217 currency code of the payment currency
-//@amount Paid amount, in the smallest units of the currency
-//@winner_count The number of users to receive Telegram Stars
-//@star_count The number of Telegram Stars to be distributed through the giveaway
-telegramPaymentPurposeStarGiveaway parameters:giveawayParameters currency:string amount:int53 winner_count:int32 star_count:int53 = TelegramPaymentPurpose;
-
-//@description The user joins a chat and subscribes to regular payments in Telegram Stars @invite_link Invite link to use
-telegramPaymentPurposeJoinChat invite_link:string = TelegramPaymentPurpose;
-
-
-//@class DeviceToken @description Represents a data needed to subscribe for push notifications through registerDevice method.
-//-To use specific push notification service, the correct application platform must be specified and a valid server authentication data must be uploaded at https://my.telegram.org
-
-//@description A token for Firebase Cloud Messaging @token Device registration token; may be empty to deregister a device @encrypt True, if push notifications must be additionally encrypted
-deviceTokenFirebaseCloudMessaging token:string encrypt:Bool = DeviceToken;
-
-//@description A token for Apple Push Notification service @device_token Device token; may be empty to deregister a device @is_app_sandbox True, if App Sandbox is enabled
-deviceTokenApplePush device_token:string is_app_sandbox:Bool = DeviceToken;
-
-//@description A token for Apple Push Notification service VoIP notifications @device_token Device token; may be empty to deregister a device @is_app_sandbox True, if App Sandbox is enabled @encrypt True, if push notifications must be additionally encrypted
-deviceTokenApplePushVoIP device_token:string is_app_sandbox:Bool encrypt:Bool = DeviceToken;
-
-//@description A token for Windows Push Notification Services @access_token The access token that will be used to send notifications; may be empty to deregister a device
-deviceTokenWindowsPush access_token:string = DeviceToken;
-
-//@description A token for Microsoft Push Notification Service @channel_uri Push notification channel URI; may be empty to deregister a device
-deviceTokenMicrosoftPush channel_uri:string = DeviceToken;
-
-//@description A token for Microsoft Push Notification Service VoIP channel @channel_uri Push notification channel URI; may be empty to deregister a device
-deviceTokenMicrosoftPushVoIP channel_uri:string = DeviceToken;
-
-//@description A token for web Push API
-//@endpoint Absolute URL exposed by the push service where the application server can send push messages; may be empty to deregister a device
-//@p256dh_base64url Base64url-encoded P-256 elliptic curve Diffie-Hellman public key
-//@auth_base64url Base64url-encoded authentication secret
-deviceTokenWebPush endpoint:string p256dh_base64url:string auth_base64url:string = DeviceToken;
-
-//@description A token for Simple Push API for Firefox OS @endpoint Absolute URL exposed by the push service where the application server can send push messages; may be empty to deregister a device
-deviceTokenSimplePush endpoint:string = DeviceToken;
-
-//@description A token for Ubuntu Push Client service @token Token; may be empty to deregister a device
-deviceTokenUbuntuPush token:string = DeviceToken;
-
-//@description A token for BlackBerry Push Service @token Token; may be empty to deregister a device
-deviceTokenBlackBerryPush token:string = DeviceToken;
-
-//@description A token for Tizen Push Service @reg_id Push service registration identifier; may be empty to deregister a device
-deviceTokenTizenPush reg_id:string = DeviceToken;
-
-//@description A token for HUAWEI Push Service @token Device registration token; may be empty to deregister a device @encrypt True, if push notifications must be additionally encrypted
-deviceTokenHuaweiPush token:string encrypt:Bool = DeviceToken;
-
-
-//@description Contains a globally unique push receiver identifier, which can be used to identify which account has received a push notification @id The globally unique identifier of push notification subscription
-pushReceiverId id:int64 = PushReceiverId;
-
-
-//@class BackgroundFill @description Describes a fill of a background
-
-//@description Describes a solid fill of a background @color A color of the background in the RGB format
-backgroundFillSolid color:int32 = BackgroundFill;
-
-//@description Describes a gradient fill of a background
-//@top_color A top color of the background in the RGB format
-//@bottom_color A bottom color of the background in the RGB format
-//@rotation_angle Clockwise rotation angle of the gradient, in degrees; 0-359. Must always be divisible by 45
-backgroundFillGradient top_color:int32 bottom_color:int32 rotation_angle:int32 = BackgroundFill;
-
-//@description Describes a freeform gradient fill of a background @colors A list of 3 or 4 colors of the freeform gradient in the RGB format
-backgroundFillFreeformGradient colors:vector<int32> = BackgroundFill;
-
-
-//@class BackgroundType @description Describes the type of background
-
-//@description A wallpaper in JPEG format
-//@is_blurred True, if the wallpaper must be downscaled to fit in 450x450 square and then box-blurred with radius 12
-//@is_moving True, if the background needs to be slightly moved when device is tilted
-backgroundTypeWallpaper is_blurred:Bool is_moving:Bool = BackgroundType;
-
-//@description A PNG or TGV (gzipped subset of SVG with MIME type "application/x-tgwallpattern") pattern to be combined with the background fill chosen by the user
-//@fill Fill of the background
-//@intensity Intensity of the pattern when it is shown above the filled background; 0-100
-//@is_inverted True, if the background fill must be applied only to the pattern itself. All other pixels are black in this case. For dark themes only
-//@is_moving True, if the background needs to be slightly moved when device is tilted
-backgroundTypePattern fill:BackgroundFill intensity:int32 is_inverted:Bool is_moving:Bool = BackgroundType;
-
-//@description A filled background @fill The background fill
-backgroundTypeFill fill:BackgroundFill = BackgroundType;
-
-//@description A background from a chat theme; can be used only as a chat background in channels @theme_name Name of the chat theme
-backgroundTypeChatTheme theme_name:string = BackgroundType;
-
-
-//@class InputBackground @description Contains information about background to set
-
-//@description A background from a local file
-//@background Background file to use. Only inputFileLocal and inputFileGenerated are supported. The file must be in JPEG format for wallpapers and in PNG format for patterns
-inputBackgroundLocal background:InputFile = InputBackground;
-
-//@description A background from the server @background_id The background identifier
-inputBackgroundRemote background_id:int64 = InputBackground;
-
-//@description A background previously set in the chat; for chat backgrounds only @message_id Identifier of the message with the background
-inputBackgroundPrevious message_id:int53 = InputBackground;
-
-
-//@description Describes a chat theme
-//@name Theme name
-//@light_settings Theme settings for a light chat theme
-//@dark_settings Theme settings for a dark chat theme
-chatTheme name:string light_settings:themeSettings dark_settings:themeSettings = ChatTheme;
-
-
-//@description Describes a time zone
-//@id Unique time zone identifier
-//@name Time zone name
-//@utc_time_offset Current UTC time offset for the time zone
-timeZone id:string name:string utc_time_offset:int32 = TimeZone;
-
-//@description Contains a list of time zones @time_zones A list of time zones
-timeZones time_zones:vector<timeZone> = TimeZones;
-
-
-//@description Contains a list of hashtags @hashtags A list of hashtags
-hashtags hashtags:vector<string> = Hashtags;
-
-
-//@class CanSendStoryResult @description Represents result of checking whether the current user can send a story in the specific chat
-
-//@description A story can be sent
-canSendStoryResultOk = CanSendStoryResult;
-
-//@description The user must subscribe to Telegram Premium to be able to post stories
-canSendStoryResultPremiumNeeded = CanSendStoryResult;
-
-//@description The chat must be boosted first by Telegram Premium subscribers to post more stories. Call getChatBoostStatus to get current boost status of the chat
-canSendStoryResultBoostNeeded = CanSendStoryResult;
-
-//@description The limit for the number of active stories exceeded. The user can buy Telegram Premium, delete an active story, or wait for the oldest story to expire
-canSendStoryResultActiveStoryLimitExceeded = CanSendStoryResult;
-
-//@description The weekly limit for the number of posted stories exceeded. The user needs to buy Telegram Premium or wait specified time @retry_after Time left before the user can send the next story
-canSendStoryResultWeeklyLimitExceeded retry_after:int32 = CanSendStoryResult;
-
-//@description The monthly limit for the number of posted stories exceeded. The user needs to buy Telegram Premium or wait specified time @retry_after Time left before the user can send the next story
-canSendStoryResultMonthlyLimitExceeded retry_after:int32 = CanSendStoryResult;
-
-
-//@class CanTransferOwnershipResult @description Represents result of checking whether the current session can be used to transfer a chat ownership to another user
-
-//@description The session can be used
-canTransferOwnershipResultOk = CanTransferOwnershipResult;
-
-//@description The 2-step verification needs to be enabled first
-canTransferOwnershipResultPasswordNeeded = CanTransferOwnershipResult;
-
-//@description The 2-step verification was enabled recently, user needs to wait @retry_after Time left before the session can be used to transfer ownership of a chat, in seconds
-canTransferOwnershipResultPasswordTooFresh retry_after:int32 = CanTransferOwnershipResult;
-
-//@description The session was created recently, user needs to wait @retry_after Time left before the session can be used to transfer ownership of a chat, in seconds
-canTransferOwnershipResultSessionTooFresh retry_after:int32 = CanTransferOwnershipResult;
-
-
-//@class CheckChatUsernameResult @description Represents result of checking whether a username can be set for a chat
-
-//@description The username can be set
-checkChatUsernameResultOk = CheckChatUsernameResult;
-
-//@description The username is invalid
-checkChatUsernameResultUsernameInvalid = CheckChatUsernameResult;
-
-//@description The username is occupied
-checkChatUsernameResultUsernameOccupied = CheckChatUsernameResult;
-
-//@description The username can be purchased at https://fragment.com. Information about the username can be received using getCollectibleItemInfo
-checkChatUsernameResultUsernamePurchasable = CheckChatUsernameResult;
-
-//@description The user has too many chats with username, one of them must be made private first
-checkChatUsernameResultPublicChatsTooMany = CheckChatUsernameResult;
-
-//@description The user can't be a member of a public supergroup
-checkChatUsernameResultPublicGroupsUnavailable = CheckChatUsernameResult;
-
-
-//@class CheckStickerSetNameResult @description Represents result of checking whether a name can be used for a new sticker set
-
-//@description The name can be set
-checkStickerSetNameResultOk = CheckStickerSetNameResult;
-
-//@description The name is invalid
-checkStickerSetNameResultNameInvalid = CheckStickerSetNameResult;
-
-//@description The name is occupied
-checkStickerSetNameResultNameOccupied = CheckStickerSetNameResult;
-
-
-//@class ResetPasswordResult @description Represents result of 2-step verification password reset
-
-//@description The password was reset
-resetPasswordResultOk = ResetPasswordResult;
-
-//@description The password reset request is pending @pending_reset_date Point in time (Unix timestamp) after which the password can be reset immediately using resetPassword
-resetPasswordResultPending pending_reset_date:int32 = ResetPasswordResult;
-
-//@description The password reset request was declined @retry_date Point in time (Unix timestamp) when the password reset can be retried
-resetPasswordResultDeclined retry_date:int32 = ResetPasswordResult;
-
-
-//@class MessageFileType @description Contains information about a file with messages exported from another app
-
-//@description The messages were exported from a private chat @name Name of the other party; may be empty if unrecognized
-messageFileTypePrivate name:string = MessageFileType;
-
-//@description The messages were exported from a group chat @title Title of the group chat; may be empty if unrecognized
-messageFileTypeGroup title:string = MessageFileType;
-
-//@description The messages were exported from a chat of unknown type
-messageFileTypeUnknown = MessageFileType;
-
-
-//@class PushMessageContent @description Contains content of a push message notification
-
-//@description A general message with hidden content @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentHidden is_pinned:Bool = PushMessageContent;
-
-//@description An animation message (GIF-style). @animation Message content; may be null @caption Animation caption @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentAnimation animation:animation caption:string is_pinned:Bool = PushMessageContent;
-
-//@description An audio message @audio Message content; may be null @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentAudio audio:audio is_pinned:Bool = PushMessageContent;
-
-//@description A message with a user contact @name Contact's name @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentContact name:string is_pinned:Bool = PushMessageContent;
-
-//@description A contact has registered with Telegram
-pushMessageContentContactRegistered = PushMessageContent;
-
-//@description A document message (a general file) @document Message content; may be null @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentDocument document:document is_pinned:Bool = PushMessageContent;
-
-//@description A message with a game @title Game title, empty for pinned game message @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentGame title:string is_pinned:Bool = PushMessageContent;
-
-//@description A new high score was achieved in a game @title Game title, empty for pinned message @score New score, 0 for pinned message @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentGameScore title:string score:int32 is_pinned:Bool = PushMessageContent;
-
-//@description A message with an invoice from a bot @price Product price @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentInvoice price:string is_pinned:Bool = PushMessageContent;
-
-//@description A message with a location @is_live True, if the location is live @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentLocation is_live:Bool is_pinned:Bool = PushMessageContent;
-
-//@description A message with paid media
-//@star_count Number of Telegram Stars needed to buy access to the media in the message; 0 for pinned message
-//@is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentPaidMedia star_count:int53 is_pinned:Bool = PushMessageContent;
-
-//@description A photo message
-//@photo Message content; may be null
-//@caption Photo caption
-//@is_secret True, if the photo is secret
-//@is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentPhoto photo:photo caption:string is_secret:Bool is_pinned:Bool = PushMessageContent;
-
-//@description A message with a poll
-//@question Poll question
-//@is_regular True, if the poll is regular and not in quiz mode
-//@is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentPoll question:string is_regular:Bool is_pinned:Bool = PushMessageContent;
-
-//@description A message with a Telegram Premium gift code created for the user @month_count Number of months the Telegram Premium subscription will be active after code activation
-pushMessageContentPremiumGiftCode month_count:int32 = PushMessageContent;
-
-//@description A message with a giveaway
-//@winner_count Number of users which will receive giveaway prizes; 0 for pinned message
-//@prize Prize of the giveaway; may be null for pinned message
-//@is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentGiveaway winner_count:int32 prize:GiveawayPrize is_pinned:Bool = PushMessageContent;
-
-//@description A message with a gift @star_count Number of Telegram Stars that sender paid for the gift
-pushMessageContentGift star_count:int53 = PushMessageContent;
-
-//@description A message with an upgraded gift
-//@is_upgrade True, if the gift was obtained by upgrading of a previously received gift; otherwise, this is a transferred gift
-pushMessageContentUpgradedGift is_upgrade:Bool = PushMessageContent;
-
-//@description A screenshot of a message in the chat has been taken
-pushMessageContentScreenshotTaken = PushMessageContent;
-
-//@description A message with a sticker
-//@sticker Message content; may be null
-//@emoji Emoji corresponding to the sticker; may be empty
-//@is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentSticker sticker:sticker emoji:string is_pinned:Bool = PushMessageContent;
-
-//@description A message with a story @is_mention True, if the user was mentioned in the story @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentStory is_mention:Bool is_pinned:Bool = PushMessageContent;
-
-//@description A text message @text Message text @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentText text:string is_pinned:Bool = PushMessageContent;
-
-//@description A video message
-//@video Message content; may be null
-//@caption Video caption
-//@is_secret True, if the video is secret
-//@is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentVideo video:video caption:string is_secret:Bool is_pinned:Bool = PushMessageContent;
-
-//@description A video note message @video_note Message content; may be null @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentVideoNote video_note:videoNote is_pinned:Bool = PushMessageContent;
-
-//@description A voice note message @voice_note Message content; may be null @is_pinned True, if the message is a pinned message with the specified content
-pushMessageContentVoiceNote voice_note:voiceNote is_pinned:Bool = PushMessageContent;
-
-//@description A newly created basic group
-pushMessageContentBasicGroupChatCreate = PushMessageContent;
-
-//@description A video chat or live stream was started
-pushMessageContentVideoChatStarted = PushMessageContent;
-
-//@description A video chat or live stream has ended
-pushMessageContentVideoChatEnded = PushMessageContent;
-
-//@description An invitation of participants to a video chat or live stream
-//@is_current_user True, if the current user was invited to the video chat or the live stream
-pushMessageContentInviteVideoChatParticipants is_current_user:Bool = PushMessageContent;
-
-//@description New chat members were invited to a group
-//@member_name Name of the added member
-//@is_current_user True, if the current user was added to the group
-//@is_returned True, if the user has returned to the group themselves
-pushMessageContentChatAddMembers member_name:string is_current_user:Bool is_returned:Bool = PushMessageContent;
-
-//@description A chat photo was edited
-pushMessageContentChatChangePhoto = PushMessageContent;
-
-//@description A chat title was edited @title New chat title
-pushMessageContentChatChangeTitle title:string = PushMessageContent;
-
-//@description A chat background was edited @is_same True, if the set background is the same as the background of the current user
-pushMessageContentChatSetBackground is_same:Bool = PushMessageContent;
-
-//@description A chat theme was edited @theme_name If non-empty, name of a new theme, set for the chat. Otherwise, the chat theme was reset to the default one
-pushMessageContentChatSetTheme theme_name:string = PushMessageContent;
-
-//@description A chat member was deleted
-//@member_name Name of the deleted member
-//@is_current_user True, if the current user was deleted from the group
-//@is_left True, if the user has left the group themselves
-pushMessageContentChatDeleteMember member_name:string is_current_user:Bool is_left:Bool = PushMessageContent;
-
-//@description A new member joined the chat via an invite link
-pushMessageContentChatJoinByLink = PushMessageContent;
-
-//@description A new member was accepted to the chat by an administrator
-pushMessageContentChatJoinByRequest = PushMessageContent;
-
-//@description A new recurring payment was made by the current user @amount The paid amount
-pushMessageContentRecurringPayment amount:string = PushMessageContent;
-
-//@description A profile photo was suggested to the user
-pushMessageContentSuggestProfilePhoto = PushMessageContent;
-
-//@description A user in the chat came within proximity alert range from the current user @distance The distance to the user
-pushMessageContentProximityAlertTriggered distance:int32 = PushMessageContent;
-
-//@description A forwarded messages @total_count Number of forwarded messages
-pushMessageContentMessageForwards total_count:int32 = PushMessageContent;
-
-//@description A media album
-//@total_count Number of messages in the album
-//@has_photos True, if the album has at least one photo
-//@has_videos True, if the album has at least one video file
-//@has_audios True, if the album has at least one audio file
-//@has_documents True, if the album has at least one document
-pushMessageContentMediaAlbum total_count:int32 has_photos:Bool has_videos:Bool has_audios:Bool has_documents:Bool = PushMessageContent;
-
-
-//@class NotificationType @description Contains detailed information about a notification
-
-//@description New message was received @message The message @show_preview True, if message content must be displayed in notifications
-notificationTypeNewMessage message:message show_preview:Bool = NotificationType;
-
-//@description New secret chat was created
-notificationTypeNewSecretChat = NotificationType;
-
-//@description New call was received @call_id Call identifier
-notificationTypeNewCall call_id:int32 = NotificationType;
-
-//@description New message was received through a push notification
-//@message_id The message identifier. The message will not be available in the chat history, but the identifier can be used in viewMessages, or as a message to be replied in the same chat
-//@sender_id Identifier of the sender of the message. Corresponding user or chat may be inaccessible
-//@sender_name Name of the sender
-//@is_outgoing True, if the message is outgoing
-//@content Push message content
-notificationTypeNewPushMessage message_id:int53 sender_id:MessageSender sender_name:string is_outgoing:Bool content:PushMessageContent = NotificationType;
-
-
-//@class NotificationGroupType @description Describes the type of notifications in a notification group
-
-//@description A group containing notifications of type notificationTypeNewMessage and notificationTypeNewPushMessage with ordinary unread messages
-notificationGroupTypeMessages = NotificationGroupType;
-
-//@description A group containing notifications of type notificationTypeNewMessage and notificationTypeNewPushMessage with unread mentions of the current user, replies to their messages, or a pinned message
-notificationGroupTypeMentions = NotificationGroupType;
-
-//@description A group containing a notification of type notificationTypeNewSecretChat
-notificationGroupTypeSecretChat = NotificationGroupType;
-
-//@description A group containing notifications of type notificationTypeNewCall
-notificationGroupTypeCalls = NotificationGroupType;
-
-
-//@description Describes a notification sound in MP3 format
-//@id Unique identifier of the notification sound
-//@duration Duration of the sound, in seconds
-//@date Point in time (Unix timestamp) when the sound was created
-//@title Title of the notification sound
-//@data Arbitrary data, defined while the sound was uploaded
-//@sound File containing the sound
-notificationSound id:int64 duration:int32 date:int32 title:string data:string sound:file = NotificationSound;
-
-//@description Contains a list of notification sounds @notification_sounds A list of notification sounds
-notificationSounds notification_sounds:vector<notificationSound> = NotificationSounds;
-
-
-//@description Contains information about a notification
-//@id Unique persistent identifier of this notification
-//@date Notification date
-//@is_silent True, if the notification was explicitly sent without sound
-//@type Notification type
-notification id:int32 date:int32 is_silent:Bool type:NotificationType = Notification;
-
-//@description Describes a group of notifications
-//@id Unique persistent auto-incremented from 1 identifier of the notification group
-//@type Type of the group
-//@chat_id Identifier of a chat to which all notifications in the group belong
-//@total_count Total number of active notifications in the group
-//@notifications The list of active notifications
-notificationGroup id:int32 type:NotificationGroupType chat_id:int53 total_count:int32 notifications:vector<notification> = NotificationGroup;
-
-
-//@class OptionValue @description Represents the value of an option
-
-//@description Represents a boolean option @value The value of the option
-optionValueBoolean value:Bool = OptionValue;
-
-//@description Represents an unknown option or an option which has a default value
-optionValueEmpty = OptionValue;
-
-//@description Represents an integer option @value The value of the option
-optionValueInteger value:int64 = OptionValue;
-
-//@description Represents a string option @value The value of the option
-optionValueString value:string = OptionValue;
-
-
-//@description Represents one member of a JSON object @key Member's key @value Member's value
-jsonObjectMember key:string value:JsonValue = JsonObjectMember;
-
-//@class JsonValue @description Represents a JSON value
-
-//@description Represents a null JSON value
-jsonValueNull = JsonValue;
-
-//@description Represents a boolean JSON value @value The value
-jsonValueBoolean value:Bool = JsonValue;
-
-//@description Represents a numeric JSON value @value The value
-jsonValueNumber value:double = JsonValue;
-
-//@description Represents a string JSON value @value The value
-jsonValueString value:string = JsonValue;
-
-//@description Represents a JSON array @values The list of array elements
-jsonValueArray values:vector<JsonValue> = JsonValue;
-
-//@description Represents a JSON object @members The list of object members
-jsonValueObject members:vector<jsonObjectMember> = JsonValue;
-
-
-//@class StoryPrivacySettings @description Describes privacy settings of a story
-
-//@description The story can be viewed by everyone @except_user_ids Identifiers of the users that can't see the story; always unknown and empty for non-owned stories
-storyPrivacySettingsEveryone except_user_ids:vector<int53> = StoryPrivacySettings;
-
-//@description The story can be viewed by all contacts except chosen users @except_user_ids User identifiers of the contacts that can't see the story; always unknown and empty for non-owned stories
-storyPrivacySettingsContacts except_user_ids:vector<int53> = StoryPrivacySettings;
-
-//@description The story can be viewed by all close friends
-storyPrivacySettingsCloseFriends = StoryPrivacySettings;
-
-//@description The story can be viewed by certain specified users @user_ids Identifiers of the users; always unknown and empty for non-owned stories
-storyPrivacySettingsSelectedUsers user_ids:vector<int53> = StoryPrivacySettings;
-
-
-//@class UserPrivacySettingRule @description Represents a single rule for managing user privacy settings
-
-//@description A rule to allow all users to do something
-userPrivacySettingRuleAllowAll = UserPrivacySettingRule;
-
-//@description A rule to allow all contacts of the user to do something
-userPrivacySettingRuleAllowContacts = UserPrivacySettingRule;
-
-//@description A rule to allow all bots to do something
-userPrivacySettingRuleAllowBots = UserPrivacySettingRule;
-
-//@description A rule to allow all Premium Users to do something; currently, allowed only for userPrivacySettingAllowChatInvites
-userPrivacySettingRuleAllowPremiumUsers = UserPrivacySettingRule;
-
-//@description A rule to allow certain specified users to do something @user_ids The user identifiers, total number of users in all rules must not exceed 1000
-userPrivacySettingRuleAllowUsers user_ids:vector<int53> = UserPrivacySettingRule;
-
-//@description A rule to allow all members of certain specified basic groups and supergroups to doing something @chat_ids The chat identifiers, total number of chats in all rules must not exceed 20
-userPrivacySettingRuleAllowChatMembers chat_ids:vector<int53> = UserPrivacySettingRule;
-
-//@description A rule to restrict all users from doing something
-userPrivacySettingRuleRestrictAll = UserPrivacySettingRule;
-
-//@description A rule to restrict all contacts of the user from doing something
-userPrivacySettingRuleRestrictContacts = UserPrivacySettingRule;
-
-//@description A rule to restrict all bots from doing something
-userPrivacySettingRuleRestrictBots = UserPrivacySettingRule;
-
-//@description A rule to restrict all specified users from doing something @user_ids The user identifiers, total number of users in all rules must not exceed 1000
-userPrivacySettingRuleRestrictUsers user_ids:vector<int53> = UserPrivacySettingRule;
-
-//@description A rule to restrict all members of specified basic groups and supergroups from doing something @chat_ids The chat identifiers, total number of chats in all rules must not exceed 20
-userPrivacySettingRuleRestrictChatMembers chat_ids:vector<int53> = UserPrivacySettingRule;
-
-//@description A list of privacy rules. Rules are matched in the specified order. The first matched rule defines the privacy setting for a given user. If no rule matches, the action is not allowed @rules A list of rules
-userPrivacySettingRules rules:vector<UserPrivacySettingRule> = UserPrivacySettingRules;
-
-
-//@class UserPrivacySetting @description Describes available user privacy settings
-
-//@description A privacy setting for managing whether the user's online status is visible
-userPrivacySettingShowStatus = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user's profile photo is visible
-userPrivacySettingShowProfilePhoto = UserPrivacySetting;
-
-//@description A privacy setting for managing whether a link to the user's account is included in forwarded messages
-userPrivacySettingShowLinkInForwardedMessages = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user's phone number is visible
-userPrivacySettingShowPhoneNumber = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user's bio is visible
-userPrivacySettingShowBio = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user's birthdate is visible
-userPrivacySettingShowBirthdate = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user can be invited to chats
-userPrivacySettingAllowChatInvites = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user can be called
-userPrivacySettingAllowCalls = UserPrivacySetting;
-
-//@description A privacy setting for managing whether peer-to-peer connections can be used for calls
-userPrivacySettingAllowPeerToPeerCalls = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user can be found by their phone number. Checked only if the phone number is not known to the other user. Can be set only to "Allow contacts" or "Allow all"
-userPrivacySettingAllowFindingByPhoneNumber = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user can receive voice and video messages in private chats; for Telegram Premium users only
-userPrivacySettingAllowPrivateVoiceAndVideoNoteMessages = UserPrivacySetting;
-
-//@description A privacy setting for managing whether received gifts are automatically shown on the user's profile page
-userPrivacySettingAutosaveGifts = UserPrivacySetting;
-
-//@description A privacy setting for managing whether the user can receive messages without additional payment
-userPrivacySettingAllowUnpaidMessages = UserPrivacySetting;
-
-
-//@description Contains privacy settings for message read date in private chats. Read dates are always shown to the users that can see online status of the current user regardless of this setting
-//@show_read_date True, if message read date is shown to other users in private chats. If false and the current user isn't a Telegram Premium user, then they will not be able to see other's message read date
-readDatePrivacySettings show_read_date:Bool = ReadDatePrivacySettings;
-
-//@description Contains privacy settings for chats with non-contacts
-//@allow_new_chats_from_unknown_users True, if non-contacts users are able to write first to the current user. Telegram Premium subscribers are able to write first regardless of this setting
-//@incoming_paid_message_star_count Number of Telegram Stars that must be paid for every incoming private message by non-contacts; 0-getOption("paid_message_star_count_max").
-//-If positive, then allow_new_chats_from_unknown_users must be true. The current user will receive getOption("paid_message_earnings_per_mille") Telegram Stars for each 1000 Telegram Stars paid for message sending.
-//-Can be positive, only if getOption("can_enable_paid_messages") is true
-newChatPrivacySettings allow_new_chats_from_unknown_users:Bool incoming_paid_message_star_count:int53 = NewChatPrivacySettings;
-
-
-//@class CanSendMessageToUserResult @description Describes result of canSendMessageToUser
-
-//@description The user can be messaged
-canSendMessageToUserResultOk = CanSendMessageToUserResult;
-
-//@description The user can be messaged, but the messages are paid
-//@outgoing_paid_message_star_count Number of Telegram Stars that must be paid by the current user for each sent message to the user
-canSendMessageToUserResultUserHasPaidMessages outgoing_paid_message_star_count:int53 = CanSendMessageToUserResult;
-
-//@description The user can't be messaged, because they are deleted or unknown
-canSendMessageToUserResultUserIsDeleted = CanSendMessageToUserResult;
-
-//@description The user can't be messaged, because they restrict new chats with non-contacts
-canSendMessageToUserResultUserRestrictsNewChats = CanSendMessageToUserResult;
-
-
-//@description Contains information about the period of inactivity after which the current user's account will automatically be deleted @days Number of days of inactivity before the account will be flagged for deletion; 30-730 days
-accountTtl days:int32 = AccountTtl;
-
-
-//@description Contains default auto-delete timer setting for new chats @time Message auto-delete time, in seconds. If 0, then messages aren't deleted automatically
-messageAutoDeleteTime time:int32 = MessageAutoDeleteTime;
-
-
-//@class SessionType @description Represents the type of session
-
-//@description The session is running on an Android device
-sessionTypeAndroid = SessionType;
-
-//@description The session is running on a generic Apple device
-sessionTypeApple = SessionType;
-
-//@description The session is running on the Brave browser
-sessionTypeBrave = SessionType;
-
-//@description The session is running on the Chrome browser
-sessionTypeChrome = SessionType;
-
-//@description The session is running on the Edge browser
-sessionTypeEdge = SessionType;
-
-//@description The session is running on the Firefox browser
-sessionTypeFirefox = SessionType;
-
-//@description The session is running on an iPad device
-sessionTypeIpad = SessionType;
-
-//@description The session is running on an iPhone device
-sessionTypeIphone = SessionType;
-
-//@description The session is running on a Linux device
-sessionTypeLinux = SessionType;
-
-//@description The session is running on a Mac device
-sessionTypeMac = SessionType;
-
-//@description The session is running on the Opera browser
-sessionTypeOpera = SessionType;
-
-//@description The session is running on the Safari browser
-sessionTypeSafari = SessionType;
-
-//@description The session is running on an Ubuntu device
-sessionTypeUbuntu = SessionType;
-
-//@description The session is running on an unknown type of device
-sessionTypeUnknown = SessionType;
-
-//@description The session is running on the Vivaldi browser
-sessionTypeVivaldi = SessionType;
-
-//@description The session is running on a Windows device
-sessionTypeWindows = SessionType;
-
-//@description The session is running on an Xbox console
-sessionTypeXbox = SessionType;
-
-
-//@description Contains information about one session in a Telegram application used by the current user. Sessions must be shown to the user in the returned order
-//@id Session identifier
-//@is_current True, if this session is the current session
-//@is_password_pending True, if a 2-step verification password is needed to complete authorization of the session
-//@is_unconfirmed True, if the session wasn't confirmed from another session
-//@can_accept_secret_chats True, if incoming secret chats can be accepted by the session
-//@can_accept_calls True, if incoming calls can be accepted by the session
-//@type Session type based on the system and application version, which can be used to display a corresponding icon
-//@api_id Telegram API identifier, as provided by the application
-//@application_name Name of the application, as provided by the application
-//@application_version The version of the application, as provided by the application
-//@is_official_application True, if the application is an official application or uses the api_id of an official application
-//@device_model Model of the device the application has been run or is running on, as provided by the application
-//@platform Operating system the application has been run or is running on, as provided by the application
-//@system_version Version of the operating system the application has been run or is running on, as provided by the application
-//@log_in_date Point in time (Unix timestamp) when the user has logged in
-//@last_active_date Point in time (Unix timestamp) when the session was last used
-//@ip_address IP address from which the session was created, in human-readable format
-//@location A human-readable description of the location from which the session was created, based on the IP address
-session id:int64 is_current:Bool is_password_pending:Bool is_unconfirmed:Bool can_accept_secret_chats:Bool can_accept_calls:Bool type:SessionType api_id:int32 application_name:string application_version:string is_official_application:Bool device_model:string platform:string system_version:string log_in_date:int32 last_active_date:int32 ip_address:string location:string = Session;
-
-//@description Contains a list of sessions @sessions List of sessions @inactive_session_ttl_days Number of days of inactivity before sessions will automatically be terminated; 1-366 days
-sessions sessions:vector<session> inactive_session_ttl_days:int32 = Sessions;
-
-//@description Contains information about an unconfirmed session
-//@id Session identifier
-//@log_in_date Point in time (Unix timestamp) when the user has logged in
-//@device_model Model of the device that was used for the session creation, as provided by the application
-//@location A human-readable description of the location from which the session was created, based on the IP address
-unconfirmedSession id:int64 log_in_date:int32 device_model:string location:string = UnconfirmedSession;
-
-
-//@description Contains information about one website the current user is logged in with Telegram
-//@id Website identifier
-//@domain_name The domain name of the website
-//@bot_user_id User identifier of a bot linked with the website
-//@browser The version of a browser used to log in
-//@platform Operating system the browser is running on
-//@log_in_date Point in time (Unix timestamp) when the user was logged in
-//@last_active_date Point in time (Unix timestamp) when obtained authorization was last used
-//@ip_address IP address from which the user was logged in, in human-readable format
-//@location Human-readable description of a country and a region from which the user was logged in, based on the IP address
-connectedWebsite id:int64 domain_name:string bot_user_id:int53 browser:string platform:string log_in_date:int32 last_active_date:int32 ip_address:string location:string = ConnectedWebsite;
-
-//@description Contains a list of websites the current user is logged in with Telegram @websites List of connected websites
-connectedWebsites websites:vector<connectedWebsite> = ConnectedWebsites;
-
-
-//@class ReportReason @description Describes the reason why a chat is reported
-
-//@description The chat contains spam messages
-reportReasonSpam = ReportReason;
-
-//@description The chat promotes violence
-reportReasonViolence = ReportReason;
-
-//@description The chat contains pornographic messages
-reportReasonPornography = ReportReason;
-
-//@description The chat has child abuse related content
-reportReasonChildAbuse = ReportReason;
-
-//@description The chat contains copyrighted content
-reportReasonCopyright = ReportReason;
-
-//@description The location-based chat is unrelated to its stated location
-reportReasonUnrelatedLocation = ReportReason;
-
-//@description The chat represents a fake account
-reportReasonFake = ReportReason;
-
-//@description The chat has illegal drugs related content
-reportReasonIllegalDrugs = ReportReason;
-
-//@description The chat contains messages with personal details
-reportReasonPersonalDetails = ReportReason;
-
-//@description A custom reason provided by the user
-reportReasonCustom = ReportReason;
-
-
-//@class ReportChatResult @description Describes result of chat report
-
-//@description The chat was reported successfully
-reportChatResultOk = ReportChatResult;
-
-//@description The user must choose an option to report the chat and repeat request with the chosen option @title Title for the option choice @options List of available options
-reportChatResultOptionRequired title:string options:vector<reportOption> = ReportChatResult;
-
-//@description The user must add additional text details to the report @option_id Option identifier for the next reportChat request @is_optional True, if the user can skip text adding
-reportChatResultTextRequired option_id:bytes is_optional:Bool = ReportChatResult;
-
-//@description The user must choose messages to report and repeat the reportChat request with the chosen messages
-reportChatResultMessagesRequired = ReportChatResult;
-
-
-//@class ReportStoryResult @description Describes result of story report
-
-//@description The story was reported successfully
-reportStoryResultOk = ReportStoryResult;
-
-//@description The user must choose an option to report the story and repeat request with the chosen option @title Title for the option choice @options List of available options
-reportStoryResultOptionRequired title:string options:vector<reportOption> = ReportStoryResult;
-
-//@description The user must add additional text details to the report @option_id Option identifier for the next reportStory request @is_optional True, if the user can skip text adding
-reportStoryResultTextRequired option_id:bytes is_optional:Bool = ReportStoryResult;
-
-
-//@class InternalLinkType @description Describes an internal https://t.me or tg: link, which must be processed by the application in a special way
-
-//@description The link is a link to the Devices section of the application. Use getActiveSessions to get the list of active sessions and show them to the user
-internalLinkTypeActiveSessions = InternalLinkType;
-
-//@description The link is a link to an attachment menu bot to be opened in the specified or a chosen chat. Process given target_chat to open the chat.
-//-Then, call searchPublicChat with the given bot username, check that the user is a bot and can be added to attachment menu. Then, use getAttachmentMenuBot to receive information about the bot.
-//-If the bot isn't added to attachment menu, then show a disclaimer about Mini Apps being third-party applications, ask the user to accept their Terms of service and confirm adding the bot to side and attachment menu.
-//-If the user accept the terms and confirms adding, then use toggleBotIsAddedToAttachmentMenu to add the bot.
-//-If the attachment menu bot can't be used in the opened chat, show an error to the user. If the bot is added to attachment menu and can be used in the chat, then use openWebApp with the given URL
-//@target_chat Target chat to be opened
-//@bot_username Username of the bot
-//@url URL to be passed to openWebApp
-internalLinkTypeAttachmentMenuBot target_chat:TargetChat bot_username:string url:string = InternalLinkType;
-
-//@description The link contains an authentication code. Call checkAuthenticationCode with the code if the current authorization state is authorizationStateWaitCode @code The authentication code
-internalLinkTypeAuthenticationCode code:string = InternalLinkType;
-
-//@description The link is a link to a background. Call searchBackground with the given background name to process the link.
-//-If background is found and the user wants to apply it, then call setDefaultBackground
-//@background_name Name of the background
-internalLinkTypeBackground background_name:string = InternalLinkType;
-
-//@description The link is a link to a Telegram bot, which is expected to be added to a channel chat as an administrator. Call searchPublicChat with the given bot username and check that the user is a bot,
-//-ask the current user to select a channel chat to add the bot to as an administrator. Then, call getChatMember to receive the current bot rights in the chat and if the bot already is an administrator,
-//-check that the current user can edit its administrator rights and combine received rights with the requested administrator rights. Then, show confirmation box to the user, and call setChatMemberStatus with the chosen chat and confirmed rights
-//@bot_username Username of the bot
-//@administrator_rights Expected administrator rights for the bot
-internalLinkTypeBotAddToChannel bot_username:string administrator_rights:chatAdministratorRights = InternalLinkType;
-
-//@description The link is a link to a chat with a Telegram bot. Call searchPublicChat with the given bot username, check that the user is a bot, show START button in the chat with the bot,
-//-and then call sendBotStartMessage with the given start parameter after the button is pressed
-//@bot_username Username of the bot
-//@start_parameter The parameter to be passed to sendBotStartMessage
-//@autostart True, if sendBotStartMessage must be called automatically without showing the START button
-internalLinkTypeBotStart bot_username:string start_parameter:string autostart:Bool = InternalLinkType;
-
-//@description The link is a link to a Telegram bot, which is expected to be added to a group chat. Call searchPublicChat with the given bot username, check that the user is a bot and can be added to groups,
-//-ask the current user to select a basic group or a supergroup chat to add the bot to, taking into account that bots can be added to a public supergroup only by administrators of the supergroup.
-//-If administrator rights are provided by the link, call getChatMember to receive the current bot rights in the chat and if the bot already is an administrator,
-//-check that the current user can edit its administrator rights, combine received rights with the requested administrator rights, show confirmation box to the user,
-//-and call setChatMemberStatus with the chosen chat and confirmed administrator rights. Before call to setChatMemberStatus it may be required to upgrade the chosen basic group chat to a supergroup chat.
-//-Then, if start_parameter isn't empty, call sendBotStartMessage with the given start parameter and the chosen chat; otherwise, just send /start message with bot's username added to the chat
-//@bot_username Username of the bot
-//@start_parameter The parameter to be passed to sendBotStartMessage
-//@administrator_rights Expected administrator rights for the bot; may be null
-internalLinkTypeBotStartInGroup bot_username:string start_parameter:string administrator_rights:chatAdministratorRights = InternalLinkType;
-
-//@description The link is a link to a business chat. Use getBusinessChatLinkInfo with the provided link name to get information about the link,
-//-then open received private chat and replace chat draft with the provided text
-//@link_name Name of the link
-internalLinkTypeBusinessChat link_name:string = InternalLinkType;
-
-//@description The link is a link to the Telegram Star purchase section of the application
-//@star_count The number of Telegram Stars that must be owned by the user
-//@purpose Purpose of Telegram Star purchase. Arbitrary string specified by the server, for example, "subs" if the Telegram Stars are required to extend channel subscriptions
-internalLinkTypeBuyStars star_count:int53 purpose:string = InternalLinkType;
-
-//@description The link is a link to the change phone number section of the application
-internalLinkTypeChangePhoneNumber = InternalLinkType;
-
-//@description The link is an affiliate program link. Call searchChatAffiliateProgram with the given username and referrer to process the link
-//@username Username to be passed to searchChatAffiliateProgram
-//@referrer Referrer to be passed to searchChatAffiliateProgram
-internalLinkTypeChatAffiliateProgram username:string referrer:string = InternalLinkType;
-
-//@description The link is a link to boost a Telegram chat. Call getChatBoostLinkInfo with the given URL to process the link.
-//-If the chat is found, then call getChatBoostStatus and getAvailableChatBoostSlots to get the current boost status and check whether the chat can be boosted.
-//-If the user wants to boost the chat and the chat can be boosted, then call boostChat
-//@url URL to be passed to getChatBoostLinkInfo
-internalLinkTypeChatBoost url:string = InternalLinkType;
-
-//@description The link is an invite link to a chat folder. Call checkChatFolderInviteLink with the given invite link to process the link.
-//-If the link is valid and the user wants to join the chat folder, then call addChatFolderByInviteLink
-//@invite_link Internal representation of the invite link
-internalLinkTypeChatFolderInvite invite_link:string = InternalLinkType;
-
-//@description The link is a link to the folder section of the application settings
-internalLinkTypeChatFolderSettings = InternalLinkType;
-
-//@description The link is a chat invite link. Call checkChatInviteLink with the given invite link to process the link.
-//-If the link is valid and the user wants to join the chat, then call joinChatByInviteLink
-//@invite_link Internal representation of the invite link
-internalLinkTypeChatInvite invite_link:string = InternalLinkType;
-
-//@description The link is a link to the default message auto-delete timer settings section of the application settings
-internalLinkTypeDefaultMessageAutoDeleteTimerSettings = InternalLinkType;
-
-//@description The link is a link to the edit profile section of the application settings
-internalLinkTypeEditProfileSettings = InternalLinkType;
-
-//@description The link is a link to a game. Call searchPublicChat with the given bot username, check that the user is a bot,
-//-ask the current user to select a chat to send the game, and then call sendMessage with inputMessageGame
-//@bot_username Username of the bot that owns the game
-//@game_short_name Short name of the game
-internalLinkTypeGame bot_username:string game_short_name:string = InternalLinkType;
-
-//@description The link must be opened in an Instant View. Call getWebPageInstantView with the given URL to process the link.
-//-If Instant View is found, then show it, otherwise, open the fallback URL in an external browser
-//@url URL to be passed to getWebPageInstantView
-//@fallback_url An URL to open if getWebPageInstantView fails
-internalLinkTypeInstantView url:string fallback_url:string = InternalLinkType;
-
-//@description The link is a link to an invoice. Call getPaymentForm with the given invoice name to process the link @invoice_name Name of the invoice
-internalLinkTypeInvoice invoice_name:string = InternalLinkType;
-
-//@description The link is a link to a language pack. Call getLanguagePackInfo with the given language pack identifier to process the link.
-//-If the language pack is found and the user wants to apply it, then call setOption for the option "language_pack_id"
-//@language_pack_id Language pack identifier
-internalLinkTypeLanguagePack language_pack_id:string = InternalLinkType;
-
-//@description The link is a link to the language section of the application settings
-internalLinkTypeLanguageSettings = InternalLinkType;
-
-//@description The link is a link to the main Web App of a bot. Call searchPublicChat with the given bot username, check that the user is a bot and has the main Web App.
-//-If the bot can be added to attachment menu, then use getAttachmentMenuBot to receive information about the bot, then if the bot isn't added to side menu,
-//-show a disclaimer about Mini Apps being third-party applications, ask the user to accept their Terms of service and confirm adding the bot to side and attachment menu,
-//-then if the user accepts the terms and confirms adding, use toggleBotIsAddedToAttachmentMenu to add the bot.
-//-Then, use getMainWebApp with the given start parameter and mode and open the returned URL as a Web App
-//@bot_username Username of the bot
-//@start_parameter Start parameter to be passed to getMainWebApp
-//@mode The mode to be passed to getMainWebApp
-internalLinkTypeMainWebApp bot_username:string start_parameter:string mode:WebAppOpenMode = InternalLinkType;
-
-//@description The link is a link to a Telegram message or a forum topic. Call getMessageLinkInfo with the given URL to process the link,
-//-and then open received forum topic or chat and show the message there
-//@url URL to be passed to getMessageLinkInfo
-internalLinkTypeMessage url:string = InternalLinkType;
-
-//@description The link contains a message draft text. A share screen needs to be shown to the user, then the chosen chat must be opened and the text is added to the input field
-//@text Message draft text
-//@contains_link True, if the first line of the text contains a link. If true, the input field needs to be focused and the text after the link must be selected
-internalLinkTypeMessageDraft text:formattedText contains_link:Bool = InternalLinkType;
-
-//@description The link contains a request of Telegram passport data. Call getPassportAuthorizationForm with the given parameters to process the link if the link was received from outside of the application; otherwise, ignore it
-//@bot_user_id User identifier of the service's bot; the corresponding user may be unknown yet
-//@scope Telegram Passport element types requested by the service
-//@public_key Service's public key
-//@nonce Unique request identifier provided by the service
-//@callback_url An HTTP URL to open once the request is finished, canceled, or failed with the parameters tg_passport=success, tg_passport=cancel, or tg_passport=error&error=... respectively.
-//-If empty, then onActivityResult method must be used to return response on Android, or the link tgbot{bot_user_id}://passport/success or tgbot{bot_user_id}://passport/cancel must be opened otherwise
-internalLinkTypePassportDataRequest bot_user_id:int53 scope:string public_key:string nonce:string callback_url:string = InternalLinkType;
-
-//@description The link can be used to confirm ownership of a phone number to prevent account deletion. Call sendPhoneNumberCode with the given phone number and with phoneNumberCodeTypeConfirmOwnership with the given hash to process the link.
-//-If succeeded, call checkPhoneNumberCode to check entered by the user code, or resendPhoneNumberCode to resend it
-//@hash Hash value from the link
-//@phone_number Phone number value from the link
-internalLinkTypePhoneNumberConfirmation hash:string phone_number:string = InternalLinkType;
-
-//@description The link is a link to the Premium features screen of the application from which the user can subscribe to Telegram Premium. Call getPremiumFeatures with the given referrer to process the link
-//@referrer Referrer specified in the link
-internalLinkTypePremiumFeatures referrer:string = InternalLinkType;
-
-//@description The link is a link to the screen for gifting Telegram Premium subscriptions to friends via inputInvoiceTelegram with telegramPaymentPurposePremiumGift payments or in-store purchases
-//@referrer Referrer specified in the link
-internalLinkTypePremiumGift referrer:string = InternalLinkType;
-
-//@description The link is a link with a Telegram Premium gift code. Call checkPremiumGiftCode with the given code to process the link.
-//-If the code is valid and the user wants to apply it, then call applyPremiumGiftCode
-//@code The Telegram Premium gift code
-internalLinkTypePremiumGiftCode code:string = InternalLinkType;
-
-//@description The link is a link to the privacy and security section of the application settings
-internalLinkTypePrivacyAndSecuritySettings = InternalLinkType;
-
-//@description The link is a link to a proxy. Call addProxy with the given parameters to process the link and add the proxy
-//@server Proxy server domain or IP address
-//@port Proxy server port
-//@type Type of the proxy
-internalLinkTypeProxy server:string port:int32 type:ProxyType = InternalLinkType;
-
-//@description The link is a link to a chat by its username. Call searchPublicChat with the given chat username to process the link.
-//-If the chat is found, open its profile information screen or the chat itself.
-//-If draft text isn't empty and the chat is a private chat with a regular user, then put the draft text in the input field
-//@chat_username Username of the chat
-//@draft_text Draft text for message to send in the chat
-//@open_profile True, if chat profile information screen must be opened; otherwise, the chat itself must be opened
-internalLinkTypePublicChat chat_username:string draft_text:string open_profile:Bool = InternalLinkType;
-
-//@description The link can be used to login the current user on another device, but it must be scanned from QR-code using in-app camera. An alert similar to
-//-"This code can be used to allow someone to log in to your Telegram account. To confirm Telegram login, please go to Settings > Devices > Scan QR and scan the code" needs to be shown
-internalLinkTypeQrCodeAuthentication = InternalLinkType;
-
-//@description The link forces restore of App Store purchases when opened. For official iOS application only
-internalLinkTypeRestorePurchases = InternalLinkType;
-
-//@description The link is a link to application settings
-internalLinkTypeSettings = InternalLinkType;
-
-//@description The link is a link to a sticker set. Call searchStickerSet with the given sticker set name to process the link and show the sticker set.
-//-If the sticker set is found and the user wants to add it, then call changeStickerSet
-//@sticker_set_name Name of the sticker set
-//@expect_custom_emoji True, if the sticker set is expected to contain custom emoji
-internalLinkTypeStickerSet sticker_set_name:string expect_custom_emoji:Bool = InternalLinkType;
-
-//@description The link is a link to a story. Call searchPublicChat with the given sender username, then call getStory with the received chat identifier and the given story identifier, then show the story if received
-//@story_sender_username Username of the sender of the story
-//@story_id Story identifier
-internalLinkTypeStory story_sender_username:string story_id:int32 = InternalLinkType;
-
-//@description The link is a link to a cloud theme. TDLib has no theme support yet @theme_name Name of the theme
-internalLinkTypeTheme theme_name:string = InternalLinkType;
-
-//@description The link is a link to the theme section of the application settings
-internalLinkTypeThemeSettings = InternalLinkType;
-
-//@description The link is an unknown tg: link. Call getDeepLinkInfo to process the link @link Link to be passed to getDeepLinkInfo
-internalLinkTypeUnknownDeepLink link:string = InternalLinkType;
-
-//@description The link is a link to an unsupported proxy. An alert can be shown to the user
-internalLinkTypeUnsupportedProxy = InternalLinkType;
-
-//@description The link is a link to an upgraded gift. Call getUpgradedGift with the given name to process the link @name Name of the unique gift
-internalLinkTypeUpgradedGift name:string = InternalLinkType;
-
-//@description The link is a link to a user by its phone number. Call searchUserByPhoneNumber with the given phone number to process the link.
-//-If the user is found, then call createPrivateChat and open user's profile information screen or the chat itself. If draft text isn't empty, then put the draft text in the input field
-//@phone_number Phone number of the user
-//@draft_text Draft text for message to send in the chat
-//@open_profile True, if user's profile information screen must be opened; otherwise, the chat itself must be opened
-internalLinkTypeUserPhoneNumber phone_number:string draft_text:string open_profile:Bool = InternalLinkType;
-
-//@description The link is a link to a user by a temporary token. Call searchUserByToken with the given token to process the link.
-//-If the user is found, then call createPrivateChat and open the chat
-//@token The token
-internalLinkTypeUserToken token:string = InternalLinkType;
-
-//@description The link is a link to a video chat. Call searchPublicChat with the given chat username, and then joinGroupCall with the given invite hash to process the link
-//@chat_username Username of the chat with the video chat
-//@invite_hash If non-empty, invite hash to be used to join the video chat without being muted by administrators
-//@is_live_stream True, if the video chat is expected to be a live stream in a channel or a broadcast group
-internalLinkTypeVideoChat chat_username:string invite_hash:string is_live_stream:Bool = InternalLinkType;
-
-//@description The link is a link to a Web App. Call searchPublicChat with the given bot username, check that the user is a bot. If the bot is restricted for the current user, then show an error message.
-//-Otherwise, call searchWebApp with the received bot and the given web_app_short_name. Process received foundWebApp by showing a confirmation dialog if needed.
-//-If the bot can be added to attachment or side menu, but isn't added yet, then show a disclaimer about Mini Apps being third-party applications instead of the dialog
-//-and ask the user to accept their Terms of service. If the user accept the terms and confirms adding, then use toggleBotIsAddedToAttachmentMenu to add the bot.
-//-Then, call getWebAppLinkUrl and open the returned URL as a Web App
-//@bot_username Username of the bot that owns the Web App
-//@web_app_short_name Short name of the Web App
-//@start_parameter Start parameter to be passed to getWebAppLinkUrl
-//@mode The mode in which the Web App must be opened
-internalLinkTypeWebApp bot_username:string web_app_short_name:string start_parameter:string mode:WebAppOpenMode = InternalLinkType;
-
-
-//@description Contains an HTTPS link to a message in a supergroup or channel, or a forum topic @link The link @is_public True, if the link will work for non-members of the chat
-messageLink link:string is_public:Bool = MessageLink;
-
-//@description Contains information about a link to a message or a forum topic in a chat
-//@is_public True, if the link is a public link for a message or a forum topic in a chat
-//@chat_id If found, identifier of the chat to which the link points, 0 otherwise
-//@message_thread_id If found, identifier of the message thread in which to open the message, or a forum topic to open if the message is missing
-//@message If found, the linked message; may be null
-//@media_timestamp Timestamp from which the video/audio/video note/voice note/story playing must start, in seconds; 0 if not specified. The media can be in the message content or in its link preview
-//@for_album True, if the whole media album to which the message belongs is linked
-messageLinkInfo is_public:Bool chat_id:int53 message_thread_id:int53 message:message media_timestamp:int32 for_album:Bool = MessageLinkInfo;
-
-
-//@description Contains an HTTPS link to boost a chat @link The link @is_public True, if the link will work for non-members of the chat
-chatBoostLink link:string is_public:Bool = ChatBoostLink;
-
-//@description Contains information about a link to boost a chat
-//@is_public True, if the link will work for non-members of the chat
-//@chat_id Identifier of the chat to which the link points; 0 if the chat isn't found
-chatBoostLinkInfo is_public:Bool chat_id:int53 = ChatBoostLinkInfo;
-
-
-//@class BlockList @description Describes type of block list
-
-//@description The main block list that disallows writing messages to the current user, receiving their status and photo, viewing of stories, and some other actions
-blockListMain = BlockList;
-
-//@description The block list that disallows viewing of stories of the current user
-blockListStories = BlockList;
-
-
-//@description Contains a part of a file @data File bytes
-filePart data:bytes = FilePart;
-
-
-//@class FileType @description Represents the type of file
-
-//@description The data is not a file
-fileTypeNone = FileType;
-
-//@description The file is an animation
-fileTypeAnimation = FileType;
-
-//@description The file is an audio file
-fileTypeAudio = FileType;
-
-//@description The file is a document
-fileTypeDocument = FileType;
-
-//@description The file is a notification sound
-fileTypeNotificationSound = FileType;
-
-//@description The file is a photo
-fileTypePhoto = FileType;
-
-//@description The file is a photo published as a story
-fileTypePhotoStory = FileType;
-
-//@description The file is a profile photo
-fileTypeProfilePhoto = FileType;
-
-//@description The file was sent to a secret chat (the file type is not known to the server)
-fileTypeSecret = FileType;
-
-//@description The file is a thumbnail of a file from a secret chat
-fileTypeSecretThumbnail = FileType;
-
-//@description The file is a file from Secure storage used for storing Telegram Passport files
-fileTypeSecure = FileType;
-
-//@description The file is a self-destructing photo in a private chat
-fileTypeSelfDestructingPhoto = FileType;
-
-//@description The file is a self-destructing video in a private chat
-fileTypeSelfDestructingVideo = FileType;
-
-//@description The file is a self-destructing video note in a private chat
-fileTypeSelfDestructingVideoNote = FileType;
-
-//@description The file is a self-destructing voice note in a private chat
-fileTypeSelfDestructingVoiceNote = FileType;
-
-//@description The file is a sticker
-fileTypeSticker = FileType;
-
-//@description The file is a thumbnail of another file
-fileTypeThumbnail = FileType;
-
-//@description The file type is not yet known
-fileTypeUnknown = FileType;
-
-//@description The file is a video
-fileTypeVideo = FileType;
-
-//@description The file is a video note
-fileTypeVideoNote = FileType;
-
-//@description The file is a video published as a story
-fileTypeVideoStory = FileType;
-
-//@description The file is a voice note
-fileTypeVoiceNote = FileType;
-
-//@description The file is a wallpaper or a background pattern
-fileTypeWallpaper = FileType;
-
-
-//@description Contains the storage usage statistics for a specific file type
-//@file_type File type
-//@size Total size of the files, in bytes
-//@count Total number of files
-storageStatisticsByFileType file_type:FileType size:int53 count:int32 = StorageStatisticsByFileType;
-
-//@description Contains the storage usage statistics for a specific chat
-//@chat_id Chat identifier; 0 if none
-//@size Total size of the files in the chat, in bytes
-//@count Total number of files in the chat
-//@by_file_type Statistics split by file types
-storageStatisticsByChat chat_id:int53 size:int53 count:int32 by_file_type:vector<storageStatisticsByFileType> = StorageStatisticsByChat;
-
-//@description Contains the exact storage usage statistics split by chats and file type
-//@size Total size of files, in bytes
-//@count Total number of files
-//@by_chat Statistics split by chats
-storageStatistics size:int53 count:int32 by_chat:vector<storageStatisticsByChat> = StorageStatistics;
-
-//@description Contains approximate storage usage statistics, excluding files of unknown file type
-//@files_size Approximate total size of files, in bytes
-//@file_count Approximate number of files
-//@database_size Size of the database
-//@language_pack_database_size Size of the language pack database
-//@log_size Size of the TDLib internal log
-storageStatisticsFast files_size:int53 file_count:int32 database_size:int53 language_pack_database_size:int53 log_size:int53 = StorageStatisticsFast;
-
-//@description Contains database statistics
-//@statistics Database statistics in an unspecified human-readable format
-databaseStatistics statistics:string = DatabaseStatistics;
-
-
-//@class NetworkType @description Represents the type of network
-
-//@description The network is not available
-networkTypeNone = NetworkType;
-
-//@description A mobile network
-networkTypeMobile = NetworkType;
-
-//@description A mobile roaming network
-networkTypeMobileRoaming = NetworkType;
-
-//@description A Wi-Fi network
-networkTypeWiFi = NetworkType;
-
-//@description A different network type (e.g., Ethernet network)
-networkTypeOther = NetworkType;
-
-
-//@class NetworkStatisticsEntry @description Contains statistics about network usage
-
-//@description Contains information about the total amount of data that was used to send and receive files
-//@file_type Type of the file the data is part of; pass null if the data isn't related to files
-//@network_type Type of the network the data was sent through. Call setNetworkType to maintain the actual network type
-//@sent_bytes Total number of bytes sent
-//@received_bytes Total number of bytes received
-networkStatisticsEntryFile file_type:FileType network_type:NetworkType sent_bytes:int53 received_bytes:int53 = NetworkStatisticsEntry;
-
-//@description Contains information about the total amount of data that was used for calls
-//@network_type Type of the network the data was sent through. Call setNetworkType to maintain the actual network type
-//@sent_bytes Total number of bytes sent
-//@received_bytes Total number of bytes received
-//@duration Total call duration, in seconds
-networkStatisticsEntryCall network_type:NetworkType sent_bytes:int53 received_bytes:int53 duration:double = NetworkStatisticsEntry;
-
-//@description A full list of available network statistic entries @since_date Point in time (Unix timestamp) from which the statistics are collected @entries Network statistics entries
-networkStatistics since_date:int32 entries:vector<NetworkStatisticsEntry> = NetworkStatistics;
-
-
-//@description Contains auto-download settings
-//@is_auto_download_enabled True, if the auto-download is enabled
-//@max_photo_file_size The maximum size of a photo file to be auto-downloaded, in bytes
-//@max_video_file_size The maximum size of a video file to be auto-downloaded, in bytes
-//@max_other_file_size The maximum size of other file types to be auto-downloaded, in bytes
-//@video_upload_bitrate The maximum suggested bitrate for uploaded videos, in kbit/s
-//@preload_large_videos True, if the beginning of video files needs to be preloaded for instant playback
-//@preload_next_audio True, if the next audio track needs to be preloaded while the user is listening to an audio file
-//@preload_stories True, if stories needs to be preloaded
-//@use_less_data_for_calls True, if "use less data for calls" option needs to be enabled
-autoDownloadSettings is_auto_download_enabled:Bool max_photo_file_size:int32 max_video_file_size:int53 max_other_file_size:int53 video_upload_bitrate:int32 preload_large_videos:Bool preload_next_audio:Bool preload_stories:Bool use_less_data_for_calls:Bool = AutoDownloadSettings;
-
-//@description Contains auto-download settings presets for the current user
-//@low Preset with lowest settings; expected to be used by default when roaming
-//@medium Preset with medium settings; expected to be used by default when using mobile data
-//@high Preset with highest settings; expected to be used by default when connected on Wi-Fi
-autoDownloadSettingsPresets low:autoDownloadSettings medium:autoDownloadSettings high:autoDownloadSettings = AutoDownloadSettingsPresets;
-
-
-//@class AutosaveSettingsScope @description Describes scope of autosave settings
-
-//@description Autosave settings applied to all private chats without chat-specific settings
-autosaveSettingsScopePrivateChats = AutosaveSettingsScope;
-
-//@description Autosave settings applied to all basic group and supergroup chats without chat-specific settings
-autosaveSettingsScopeGroupChats = AutosaveSettingsScope;
-
-//@description Autosave settings applied to all channel chats without chat-specific settings
-autosaveSettingsScopeChannelChats = AutosaveSettingsScope;
-
-//@description Autosave settings applied to a chat @chat_id Chat identifier
-autosaveSettingsScopeChat chat_id:int53 = AutosaveSettingsScope;
-
-
-//@description Contains autosave settings for an autosave settings scope
-//@autosave_photos True, if photo autosave is enabled
-//@autosave_videos True, if video autosave is enabled
-//@max_video_file_size The maximum size of a video file to be autosaved, in bytes; 512 KB - 4000 MB
-scopeAutosaveSettings autosave_photos:Bool autosave_videos:Bool max_video_file_size:int53 = ScopeAutosaveSettings;
-
-//@description Contains autosave settings for a chat, which overrides default settings for the corresponding scope
-//@chat_id Chat identifier
-//@settings Autosave settings for the chat
-autosaveSettingsException chat_id:int53 settings:scopeAutosaveSettings = AutosaveSettingsException;
-
-//@description Describes autosave settings
-//@private_chat_settings Default autosave settings for private chats
-//@group_settings Default autosave settings for basic group and supergroup chats
-//@channel_settings Default autosave settings for channel chats
-//@exceptions Autosave settings for specific chats
-autosaveSettings private_chat_settings:scopeAutosaveSettings group_settings:scopeAutosaveSettings channel_settings:scopeAutosaveSettings exceptions:vector<autosaveSettingsException> = AutosaveSettings;
-
-
-//@class ConnectionState @description Describes the current state of the connection to Telegram servers
-
-//@description Waiting for the network to become available. Use setNetworkType to change the available network type
-connectionStateWaitingForNetwork = ConnectionState;
-
-//@description Establishing a connection with a proxy server
-connectionStateConnectingToProxy = ConnectionState;
-
-//@description Establishing a connection to the Telegram servers
-connectionStateConnecting = ConnectionState;
-
-//@description Downloading data expected to be received while the application was offline
-connectionStateUpdating = ConnectionState;
-
-//@description There is a working connection to the Telegram servers
-connectionStateReady = ConnectionState;
-
-
-//@class TopChatCategory @description Represents the categories of chats for which a list of frequently used chats can be retrieved
-
-//@description A category containing frequently used private chats with non-bot users
-topChatCategoryUsers = TopChatCategory;
-
-//@description A category containing frequently used private chats with bot users
-topChatCategoryBots = TopChatCategory;
-
-//@description A category containing frequently used basic groups and supergroups
-topChatCategoryGroups = TopChatCategory;
-
-//@description A category containing frequently used channels
-topChatCategoryChannels = TopChatCategory;
-
-//@description A category containing frequently used chats with inline bots sorted by their usage in inline mode
-topChatCategoryInlineBots = TopChatCategory;
-
-//@description A category containing frequently used chats with bots, which Web Apps were opened
-topChatCategoryWebAppBots = TopChatCategory;
-
-//@description A category containing frequently used chats used for calls
-topChatCategoryCalls = TopChatCategory;
-
-//@description A category containing frequently used chats used to forward messages
-topChatCategoryForwardChats = TopChatCategory;
-
-
-//@description Contains 0-based match position @position The position of the match
-foundPosition position:int32 = FoundPosition;
-
-//@description Contains 0-based positions of matched objects @total_count Total number of matched objects @positions The positions of the matched objects
-foundPositions total_count:int32 positions:vector<int32> = FoundPositions;
-
-
-//@class TMeUrlType @description Describes the type of URL linking to an internal Telegram entity
-
-//@description A URL linking to a user @user_id Identifier of the user
-tMeUrlTypeUser user_id:int53 = TMeUrlType;
-
-//@description A URL linking to a public supergroup or channel @supergroup_id Identifier of the supergroup or channel
-tMeUrlTypeSupergroup supergroup_id:int53 = TMeUrlType;
-
-//@description A chat invite link @info Information about the chat invite link
-tMeUrlTypeChatInvite info:chatInviteLinkInfo = TMeUrlType;
-
-//@description A URL linking to a sticker set @sticker_set_id Identifier of the sticker set
-tMeUrlTypeStickerSet sticker_set_id:int64 = TMeUrlType;
-
-//@description Represents a URL linking to an internal Telegram entity @url URL @type Type of the URL
-tMeUrl url:string type:TMeUrlType = TMeUrl;
-
-//@description Contains a list of t.me URLs @urls List of URLs
-tMeUrls urls:vector<tMeUrl> = TMeUrls;
-
-
-//@class SuggestedAction @description Describes an action suggested to the current user
-
-//@description Suggests the user to enable archive_and_mute_new_chats_from_unknown_users setting in archiveChatListSettings
-suggestedActionEnableArchiveAndMuteNewChats = SuggestedAction;
-
-//@description Suggests the user to check whether they still remember their 2-step verification password
-suggestedActionCheckPassword = SuggestedAction;
-
-//@description Suggests the user to check whether authorization phone number is correct and change the phone number if it is inaccessible
-suggestedActionCheckPhoneNumber = SuggestedAction;
-
-//@description Suggests the user to view a hint about the meaning of one and two check marks on sent messages
-suggestedActionViewChecksHint = SuggestedAction;
-
-//@description Suggests the user to convert specified supergroup to a broadcast group @supergroup_id Supergroup identifier
-suggestedActionConvertToBroadcastGroup supergroup_id:int53 = SuggestedAction;
-
-//@description Suggests the user to set a 2-step verification password to be able to log in again
-//@authorization_delay The number of days to pass between consecutive authorizations if the user declines to set password; if 0, then the user is advised to set the password for security reasons
-suggestedActionSetPassword authorization_delay:int32 = SuggestedAction;
-
-//@description Suggests the user to upgrade the Premium subscription from monthly payments to annual payments
-suggestedActionUpgradePremium = SuggestedAction;
-
-//@description Suggests the user to restore a recently expired Premium subscription
-suggestedActionRestorePremium = SuggestedAction;
-
-//@description Suggests the user to subscribe to the Premium subscription with annual payments
-suggestedActionSubscribeToAnnualPremium = SuggestedAction;
-
-//@description Suggests the user to gift Telegram Premium to friends for Christmas
-suggestedActionGiftPremiumForChristmas = SuggestedAction;
-
-//@description Suggests the user to set birthdate
-suggestedActionSetBirthdate = SuggestedAction;
-
-//@description Suggests the user to set profile photo
-suggestedActionSetProfilePhoto = SuggestedAction;
-
-//@description Suggests the user to extend their expiring Telegram Premium subscription @manage_premium_subscription_url A URL for managing Telegram Premium subscription
-suggestedActionExtendPremium manage_premium_subscription_url:string = SuggestedAction;
-
-//@description Suggests the user to extend their expiring Telegram Star subscriptions. Call getStarSubscriptions with only_expiring == true
-//-to get the number of expiring subscriptions and the number of required to buy Telegram Stars
-suggestedActionExtendStarSubscriptions = SuggestedAction;
-
-
-//@description Contains a counter @count Count
-count count:int32 = Count;
-
-//@description Contains some text @text Text
-text text:string = Text;
-
-//@description Contains a value representing a number of seconds @seconds Number of seconds
-seconds seconds:double = Seconds;
-
-//@description Contains size of downloaded prefix of a file @size The prefix size, in bytes
-fileDownloadedPrefixSize size:int53 = FileDownloadedPrefixSize;
-
-//@description Contains a number of Telegram Stars @star_count Number of Telegram Stars
-starCount star_count:int53 = StarCount;
-
-
-//@description Contains information about a tg: deep link @text Text to be shown to the user @need_update_application True, if the user must be asked to update the application
-deepLinkInfo text:formattedText need_update_application:Bool = DeepLinkInfo;
-
-
-//@class TextParseMode @description Describes the way the text needs to be parsed for text entities
-
-//@description The text uses Markdown-style formatting
-//@version Version of the parser: 0 or 1 - Telegram Bot API "Markdown" parse mode, 2 - Telegram Bot API "MarkdownV2" parse mode
-textParseModeMarkdown version:int32 = TextParseMode;
-
-//@description The text uses HTML-style formatting. The same as Telegram Bot API "HTML" parse mode
-textParseModeHTML = TextParseMode;
-
-
-//@class ProxyType @description Describes the type of proxy server
-
-//@description A SOCKS5 proxy server @username Username for logging in; may be empty @password Password for logging in; may be empty
-proxyTypeSocks5 username:string password:string = ProxyType;
-
-//@description A HTTP transparent proxy server @username Username for logging in; may be empty @password Password for logging in; may be empty @http_only Pass true if the proxy supports only HTTP requests and doesn't support transparent TCP connections via HTTP CONNECT method
-proxyTypeHttp username:string password:string http_only:Bool = ProxyType;
-
-//@description An MTProto proxy server @secret The proxy's secret in hexadecimal encoding
-proxyTypeMtproto secret:string = ProxyType;
-
-
-//@description Contains information about a proxy server
-//@id Unique identifier of the proxy
-//@server Proxy server domain or IP address
-//@port Proxy server port
-//@last_used_date Point in time (Unix timestamp) when the proxy was last used; 0 if never
-//@is_enabled True, if the proxy is enabled now
-//@type Type of the proxy
-proxy id:int32 server:string port:int32 last_used_date:int32 is_enabled:Bool type:ProxyType = Proxy;
-
-//@description Represents a list of proxy servers @proxies List of proxy servers
-proxies proxies:vector<proxy> = Proxies;
-
-
-//@description A sticker to be added to a sticker set
-//@sticker File with the sticker; must fit in a 512x512 square. For WEBP stickers the file must be in WEBP or PNG format, which will be converted to WEBP server-side.
-//-See https://core.telegram.org/animated_stickers#technical-requirements for technical requirements
-//@format Format of the sticker
-//@emojis String with 1-20 emoji corresponding to the sticker
-//@mask_position Position where the mask is placed; pass null if not specified
-//@keywords List of up to 20 keywords with total length up to 64 characters, which can be used to find the sticker
-inputSticker sticker:InputFile format:StickerFormat emojis:string mask_position:maskPosition keywords:vector<string> = InputSticker;
-
-
-//@description Represents a date range @start_date Point in time (Unix timestamp) at which the date range begins @end_date Point in time (Unix timestamp) at which the date range ends
-dateRange start_date:int32 end_date:int32 = DateRange;
-
-
-//@description A value with information about its recent changes @value The current value @previous_value The value for the previous day @growth_rate_percentage The growth rate of the value, as a percentage
-statisticalValue value:double previous_value:double growth_rate_percentage:double = StatisticalValue;
-
-
-//@class StatisticalGraph @description Describes a statistical graph
-
-//@description A graph data @json_data Graph data in JSON format @zoom_token If non-empty, a token which can be used to receive a zoomed in graph
-statisticalGraphData json_data:string zoom_token:string = StatisticalGraph;
-
-//@description The graph data to be asynchronously loaded through getStatisticalGraph @token The token to use for data loading
-statisticalGraphAsync token:string = StatisticalGraph;
-
-//@description An error message to be shown to the user instead of the graph @error_message The error message
-statisticalGraphError error_message:string = StatisticalGraph;
-
-
-//@class ChatStatisticsObjectType @description Describes type of object, for which statistics are provided
-
-//@description Describes a message sent in the chat @message_id Message identifier
-chatStatisticsObjectTypeMessage message_id:int53 = ChatStatisticsObjectType;
-
-//@description Describes a story sent by the chat @story_id Story identifier
-chatStatisticsObjectTypeStory story_id:int32 = ChatStatisticsObjectType;
-
-
-//@description Contains statistics about interactions with a message sent in the chat or a story sent by the chat
-//@object_type Type of the object
-//@view_count Number of times the object was viewed
-//@forward_count Number of times the object was forwarded
-//@reaction_count Number of times reactions were added to the object
-chatStatisticsInteractionInfo object_type:ChatStatisticsObjectType view_count:int32 forward_count:int32 reaction_count:int32 = ChatStatisticsInteractionInfo;
-
-//@description Contains statistics about messages sent by a user
-//@user_id User identifier
-//@sent_message_count Number of sent messages
-//@average_character_count Average number of characters in sent messages; 0 if unknown
-chatStatisticsMessageSenderInfo user_id:int53 sent_message_count:int32 average_character_count:int32 = ChatStatisticsMessageSenderInfo;
-
-//@description Contains statistics about administrator actions done by a user
-//@user_id Administrator user identifier
-//@deleted_message_count Number of messages deleted by the administrator
-//@banned_user_count Number of users banned by the administrator
-//@restricted_user_count Number of users restricted by the administrator
-chatStatisticsAdministratorActionsInfo user_id:int53 deleted_message_count:int32 banned_user_count:int32 restricted_user_count:int32 = ChatStatisticsAdministratorActionsInfo;
-
-//@description Contains statistics about number of new members invited by a user
-//@user_id User identifier
-//@added_member_count Number of new members invited by the user
-chatStatisticsInviterInfo user_id:int53 added_member_count:int32 = ChatStatisticsInviterInfo;
-
-
-//@class ChatStatistics @description Contains a detailed statistics about a chat
-
-//@description A detailed statistics about a supergroup chat
-//@period A period to which the statistics applies
-//@member_count Number of members in the chat
-//@message_count Number of messages sent to the chat
-//@viewer_count Number of users who viewed messages in the chat
-//@sender_count Number of users who sent messages to the chat
-//@member_count_graph A graph containing number of members in the chat
-//@join_graph A graph containing number of members joined and left the chat
-//@join_by_source_graph A graph containing number of new member joins per source
-//@language_graph A graph containing distribution of active users per language
-//@message_content_graph A graph containing distribution of sent messages by content type
-//@action_graph A graph containing number of different actions in the chat
-//@day_graph A graph containing distribution of message views per hour
-//@week_graph A graph containing distribution of message views per day of week
-//@top_senders List of users sent most messages in the last week
-//@top_administrators List of most active administrators in the last week
-//@top_inviters List of most active inviters of new members in the last week
-chatStatisticsSupergroup period:dateRange member_count:statisticalValue message_count:statisticalValue viewer_count:statisticalValue sender_count:statisticalValue member_count_graph:StatisticalGraph join_graph:StatisticalGraph join_by_source_graph:StatisticalGraph language_graph:StatisticalGraph message_content_graph:StatisticalGraph action_graph:StatisticalGraph day_graph:StatisticalGraph week_graph:StatisticalGraph top_senders:vector<chatStatisticsMessageSenderInfo> top_administrators:vector<chatStatisticsAdministratorActionsInfo> top_inviters:vector<chatStatisticsInviterInfo> = ChatStatistics;
-
-//@description A detailed statistics about a channel chat
-//@period A period to which the statistics applies
-//@member_count Number of members in the chat
-//@mean_message_view_count Mean number of times the recently sent messages were viewed
-//@mean_message_share_count Mean number of times the recently sent messages were shared
-//@mean_message_reaction_count Mean number of times reactions were added to the recently sent messages
-//@mean_story_view_count Mean number of times the recently sent stories were viewed
-//@mean_story_share_count Mean number of times the recently sent stories were shared
-//@mean_story_reaction_count Mean number of times reactions were added to the recently sent stories
-//@enabled_notifications_percentage A percentage of users with enabled notifications for the chat; 0-100
-//@member_count_graph A graph containing number of members in the chat
-//@join_graph A graph containing number of members joined and left the chat
-//@mute_graph A graph containing number of members muted and unmuted the chat
-//@view_count_by_hour_graph A graph containing number of message views in a given hour in the last two weeks
-//@view_count_by_source_graph A graph containing number of message views per source
-//@join_by_source_graph A graph containing number of new member joins per source
-//@language_graph A graph containing number of users viewed chat messages per language
-//@message_interaction_graph A graph containing number of chat message views and shares
-//@message_reaction_graph A graph containing number of reactions on messages
-//@story_interaction_graph A graph containing number of story views and shares
-//@story_reaction_graph A graph containing number of reactions on stories
-//@instant_view_interaction_graph A graph containing number of views of associated with the chat instant views
-//@recent_interactions Detailed statistics about number of views and shares of recently sent messages and stories
-chatStatisticsChannel period:dateRange member_count:statisticalValue mean_message_view_count:statisticalValue mean_message_share_count:statisticalValue mean_message_reaction_count:statisticalValue mean_story_view_count:statisticalValue mean_story_share_count:statisticalValue mean_story_reaction_count:statisticalValue enabled_notifications_percentage:double member_count_graph:StatisticalGraph join_graph:StatisticalGraph mute_graph:StatisticalGraph view_count_by_hour_graph:StatisticalGraph view_count_by_source_graph:StatisticalGraph join_by_source_graph:StatisticalGraph language_graph:StatisticalGraph message_interaction_graph:StatisticalGraph message_reaction_graph:StatisticalGraph story_interaction_graph:StatisticalGraph story_reaction_graph:StatisticalGraph instant_view_interaction_graph:StatisticalGraph recent_interactions:vector<chatStatisticsInteractionInfo> = ChatStatistics;
-
-
-//@description Contains information about revenue earned from sponsored messages in a chat
-//@cryptocurrency Cryptocurrency in which revenue is calculated
-//@total_amount Total amount of the cryptocurrency earned, in the smallest units of the cryptocurrency
-//@balance_amount Amount of the cryptocurrency that isn't withdrawn yet, in the smallest units of the cryptocurrency
-//@available_amount Amount of the cryptocurrency available for withdrawal, in the smallest units of the cryptocurrency
-//@withdrawal_enabled True, if Telegram Stars can be withdrawn now or later
-chatRevenueAmount cryptocurrency:string total_amount:int64 balance_amount:int64 available_amount:int64 withdrawal_enabled:Bool = ChatRevenueAmount;
-
-//@description A detailed statistics about revenue earned from sponsored messages in a chat
-//@revenue_by_hour_graph A graph containing amount of revenue in a given hour
-//@revenue_graph A graph containing amount of revenue
-//@revenue_amount Amount of earned revenue
-//@usd_rate Current conversion rate of the cryptocurrency in which revenue is calculated to USD
-chatRevenueStatistics revenue_by_hour_graph:StatisticalGraph revenue_graph:StatisticalGraph revenue_amount:chatRevenueAmount usd_rate:double = ChatRevenueStatistics;
-
-//@description A detailed statistics about a message
-//@message_interaction_graph A graph containing number of message views and shares
-//@message_reaction_graph A graph containing number of message reactions
-messageStatistics message_interaction_graph:StatisticalGraph message_reaction_graph:StatisticalGraph = MessageStatistics;
-
-//@description A detailed statistics about a story
-//@story_interaction_graph A graph containing number of story views and shares
-//@story_reaction_graph A graph containing number of story reactions
-storyStatistics story_interaction_graph:StatisticalGraph story_reaction_graph:StatisticalGraph = StoryStatistics;
-
-
-//@class RevenueWithdrawalState @description Describes state of a revenue withdrawal
-
-//@description Withdrawal is pending
-revenueWithdrawalStatePending = RevenueWithdrawalState;
-
-//@description Withdrawal succeeded
-//@date Point in time (Unix timestamp) when the withdrawal was completed
-//@url The URL where the withdrawal transaction can be viewed
-revenueWithdrawalStateSucceeded date:int32 url:string = RevenueWithdrawalState;
-
-//@description Withdrawal failed
-revenueWithdrawalStateFailed = RevenueWithdrawalState;
-
-
-//@class ChatRevenueTransactionType @description Describes type of transaction for revenue earned from sponsored messages in a chat
-
-//@description Describes earnings from sponsored messages in a chat in some time frame
-//@start_date Point in time (Unix timestamp) when the earnings started
-//@end_date Point in time (Unix timestamp) when the earnings ended
-chatRevenueTransactionTypeEarnings start_date:int32 end_date:int32 = ChatRevenueTransactionType;
-
-//@description Describes a withdrawal of earnings
-//@withdrawal_date Point in time (Unix timestamp) when the earnings withdrawal started
-//@provider Name of the payment provider
-//@state State of the withdrawal
-chatRevenueTransactionTypeWithdrawal withdrawal_date:int32 provider:string state:RevenueWithdrawalState = ChatRevenueTransactionType;
-
-//@description Describes a refund for failed withdrawal of earnings
-//@refund_date Point in time (Unix timestamp) when the transaction was refunded
-//@provider Name of the payment provider
-chatRevenueTransactionTypeRefund refund_date:int32 provider:string = ChatRevenueTransactionType;
-
-//@description Contains a chat revenue transactions
-//@cryptocurrency Cryptocurrency in which revenue is calculated
-//@cryptocurrency_amount The withdrawn amount, in the smallest units of the cryptocurrency
-//@type Type of the transaction
-chatRevenueTransaction cryptocurrency:string cryptocurrency_amount:int64 type:ChatRevenueTransactionType = ChatRevenueTransaction;
-
-//@description Contains a list of chat revenue transactions @total_count Total number of transactions @transactions List of transactions
-chatRevenueTransactions total_count:int32 transactions:vector<chatRevenueTransaction> = ChatRevenueTransactions;
-
-
-//@description Contains information about Telegram Stars earned by a bot or a chat
-//@total_amount Total amount of Telegram Stars earned
-//@current_amount The amount of Telegram Stars that aren't withdrawn yet
-//@available_amount The amount of Telegram Stars that are available for withdrawal
-//@withdrawal_enabled True, if Telegram Stars can be withdrawn now or later
-//@next_withdrawal_in Time left before the next withdrawal can be started, in seconds; 0 if withdrawal can be started now
-starRevenueStatus total_amount:starAmount current_amount:starAmount available_amount:starAmount withdrawal_enabled:Bool next_withdrawal_in:int32 = StarRevenueStatus;
-
-//@description A detailed statistics about Telegram Stars earned by a bot or a chat
-//@revenue_by_day_graph A graph containing amount of revenue in a given day
-//@status Telegram Star revenue status
-//@usd_rate Current conversion rate of a Telegram Star to USD
-starRevenueStatistics revenue_by_day_graph:StatisticalGraph status:starRevenueStatus usd_rate:double = StarRevenueStatistics;
-
-
-//@description A point on a Cartesian plane @x The point's first coordinate @y The point's second coordinate
-point x:double y:double = Point;
-
-
-//@class VectorPathCommand @description Represents a vector path command
-
-//@description A straight line to a given point @end_point The end point of the straight line
-vectorPathCommandLine end_point:point = VectorPathCommand;
-
-//@description A cubic Bézier curve to a given point @start_control_point The start control point of the curve @end_control_point The end control point of the curve @end_point The end point of the curve
-vectorPathCommandCubicBezierCurve start_control_point:point end_control_point:point end_point:point = VectorPathCommand;
-
-
-//@class BotCommandScope @description Represents the scope to which bot commands are relevant
-
-//@description A scope covering all users
-botCommandScopeDefault = BotCommandScope;
-
-//@description A scope covering all private chats
-botCommandScopeAllPrivateChats = BotCommandScope;
-
-//@description A scope covering all group and supergroup chats
-botCommandScopeAllGroupChats = BotCommandScope;
-
-//@description A scope covering all group and supergroup chat administrators
-botCommandScopeAllChatAdministrators = BotCommandScope;
-
-//@description A scope covering all members of a chat @chat_id Chat identifier
-botCommandScopeChat chat_id:int53 = BotCommandScope;
-
-//@description A scope covering all administrators of a chat @chat_id Chat identifier
-botCommandScopeChatAdministrators chat_id:int53 = BotCommandScope;
-
-//@description A scope covering a member of a chat @chat_id Chat identifier @user_id User identifier
-botCommandScopeChatMember chat_id:int53 user_id:int53 = BotCommandScope;
-
-
-//@class PhoneNumberCodeType @description Describes type of the request for which a code is sent to a phone number
-
-//@description Checks ownership of a new phone number to change the user's authentication phone number; for official Android and iOS applications only
-phoneNumberCodeTypeChange = PhoneNumberCodeType;
-
-//@description Verifies ownership of a phone number to be added to the user's Telegram Passport
-phoneNumberCodeTypeVerify = PhoneNumberCodeType;
-
-//@description Confirms ownership of a phone number to prevent account deletion while handling links of the type internalLinkTypePhoneNumberConfirmation
-//@hash Hash value from the link
-phoneNumberCodeTypeConfirmOwnership hash:string = PhoneNumberCodeType;
-
-
-//@class Update @description Contains notifications about data changes
-
-//@description The user authorization state has changed @authorization_state New authorization state
-updateAuthorizationState authorization_state:AuthorizationState = Update;
-
-//@description A new message was received; can also be an outgoing message @message The new message
-updateNewMessage message:message = Update;
-
-//@description A request to send a message has reached the Telegram server. This doesn't mean that the message will be sent successfully.
-//-This update is sent only if the option "use_quick_ack" is set to true. This update may be sent multiple times for the same message
-//@chat_id The chat identifier of the sent message
-//@message_id A temporary message identifier
-updateMessageSendAcknowledged chat_id:int53 message_id:int53 = Update;
-
-//@description A message has been successfully sent
-//@message The sent message. Almost any field of the new message can be different from the corresponding field of the original message.
-//-For example, the field scheduling_state may change, making the message scheduled, or non-scheduled
-//@old_message_id The previous temporary message identifier
-updateMessageSendSucceeded message:message old_message_id:int53 = Update;
-
-//@description A message failed to send. Be aware that some messages being sent can be irrecoverably deleted, in which case updateDeleteMessages will be received instead of this update
-//@message The failed to send message
-//@old_message_id The previous temporary message identifier
-//@error The cause of the message sending failure
-updateMessageSendFailed message:message old_message_id:int53 error:error = Update;
-
-//@description The message content has changed @chat_id Chat identifier @message_id Message identifier @new_content New message content
-updateMessageContent chat_id:int53 message_id:int53 new_content:MessageContent = Update;
-
-//@description A message was edited. Changes in the message content will come in a separate updateMessageContent
-//@chat_id Chat identifier
-//@message_id Message identifier
-//@edit_date Point in time (Unix timestamp) when the message was edited
-//@reply_markup New message reply markup; may be null
-updateMessageEdited chat_id:int53 message_id:int53 edit_date:int32 reply_markup:ReplyMarkup = Update;
-
-//@description The message pinned state was changed @chat_id Chat identifier @message_id The message identifier @is_pinned True, if the message is pinned
-updateMessageIsPinned chat_id:int53 message_id:int53 is_pinned:Bool = Update;
-
-//@description The information about interactions with a message has changed @chat_id Chat identifier @message_id Message identifier @interaction_info New information about interactions with the message; may be null
-updateMessageInteractionInfo chat_id:int53 message_id:int53 interaction_info:messageInteractionInfo = Update;
-
-//@description The message content was opened. Updates voice note messages to "listened", video note messages to "viewed" and starts the self-destruct timer @chat_id Chat identifier @message_id Message identifier
-updateMessageContentOpened chat_id:int53 message_id:int53 = Update;
-
-//@description A message with an unread mention was read @chat_id Chat identifier @message_id Message identifier @unread_mention_count The new number of unread mention messages left in the chat
-updateMessageMentionRead chat_id:int53 message_id:int53 unread_mention_count:int32 = Update;
-
-//@description The list of unread reactions added to a message was changed
-//@chat_id Chat identifier
-//@message_id Message identifier
-//@unread_reactions The new list of unread reactions
-//@unread_reaction_count The new number of messages with unread reactions left in the chat
-updateMessageUnreadReactions chat_id:int53 message_id:int53 unread_reactions:vector<unreadReaction> unread_reaction_count:int32 = Update;
-
-//@description A fact-check added to a message was changed
-//@chat_id Chat identifier
-//@message_id Message identifier
-//@fact_check The new fact-check
-updateMessageFactCheck chat_id:int53 message_id:int53 fact_check:factCheck = Update;
-
-//@description A message with a live location was viewed. When the update is received, the application is expected to update the live location
-//@chat_id Identifier of the chat with the live location message
-//@message_id Identifier of the message with live location
-updateMessageLiveLocationViewed chat_id:int53 message_id:int53 = Update;
-
-//@description An automatically scheduled message with video has been successfully sent after conversion
-//@chat_id Identifier of the chat with the message
-//@message_id Identifier of the sent message
-updateVideoPublished chat_id:int53 message_id:int53 = Update;
-
-//@description A new chat has been loaded/created. This update is guaranteed to come before the chat identifier is returned to the application. The chat field changes will be reported through separate updates @chat The chat
-updateNewChat chat:chat = Update;
-
-//@description The title of a chat was changed @chat_id Chat identifier @title The new chat title
-updateChatTitle chat_id:int53 title:string = Update;
-
-//@description A chat photo was changed @chat_id Chat identifier @photo The new chat photo; may be null
-updateChatPhoto chat_id:int53 photo:chatPhotoInfo = Update;
-
-//@description Chat accent colors have changed
-//@chat_id Chat identifier
-//@accent_color_id The new chat accent color identifier
-//@background_custom_emoji_id The new identifier of a custom emoji to be shown on the reply header and link preview background; 0 if none
-//@profile_accent_color_id The new chat profile accent color identifier; -1 if none
-//@profile_background_custom_emoji_id The new identifier of a custom emoji to be shown on the profile background; 0 if none
-updateChatAccentColors chat_id:int53 accent_color_id:int32 background_custom_emoji_id:int64 profile_accent_color_id:int32 profile_background_custom_emoji_id:int64 = Update;
-
-//@description Chat permissions were changed @chat_id Chat identifier @permissions The new chat permissions
-updateChatPermissions chat_id:int53 permissions:chatPermissions = Update;
-
-//@description The last message of a chat was changed
-//@chat_id Chat identifier
-//@last_message The new last message in the chat; may be null if the last message became unknown. While the last message is unknown, new messages can be added to the chat without corresponding updateNewMessage update
-//@positions The new chat positions in the chat lists
-updateChatLastMessage chat_id:int53 last_message:message positions:vector<chatPosition> = Update;
-
-//@description The position of a chat in a chat list has changed. An updateChatLastMessage or updateChatDraftMessage update might be sent instead of the update
-//@chat_id Chat identifier
-//@position New chat position. If new order is 0, then the chat needs to be removed from the list
-updateChatPosition chat_id:int53 position:chatPosition = Update;
-
-//@description A chat was added to a chat list @chat_id Chat identifier @chat_list The chat list to which the chat was added
-updateChatAddedToList chat_id:int53 chat_list:ChatList = Update;
-
-//@description A chat was removed from a chat list @chat_id Chat identifier @chat_list The chat list from which the chat was removed
-updateChatRemovedFromList chat_id:int53 chat_list:ChatList = Update;
-
-//@description Incoming messages were read or the number of unread messages has been changed @chat_id Chat identifier @last_read_inbox_message_id Identifier of the last read incoming message @unread_count The number of unread messages left in the chat
-updateChatReadInbox chat_id:int53 last_read_inbox_message_id:int53 unread_count:int32 = Update;
-
-//@description Outgoing messages were read @chat_id Chat identifier @last_read_outbox_message_id Identifier of last read outgoing message
-updateChatReadOutbox chat_id:int53 last_read_outbox_message_id:int53 = Update;
-
-//@description The chat action bar was changed @chat_id Chat identifier @action_bar The new value of the action bar; may be null
-updateChatActionBar chat_id:int53 action_bar:ChatActionBar = Update;
-
-//@description The bar for managing business bot was changed in a chat @chat_id Chat identifier @business_bot_manage_bar The new value of the business bot manage bar; may be null
-updateChatBusinessBotManageBar chat_id:int53 business_bot_manage_bar:businessBotManageBar = Update;
-
-//@description The chat available reactions were changed @chat_id Chat identifier @available_reactions The new reactions, available in the chat
-updateChatAvailableReactions chat_id:int53 available_reactions:ChatAvailableReactions = Update;
-
-//@description A chat draft has changed. Be aware that the update may come in the currently opened chat but with old content of the draft. If the user has changed the content of the draft, this update mustn't be applied
-//@chat_id Chat identifier
-//@draft_message The new draft message; may be null if none
-//@positions The new chat positions in the chat lists
-updateChatDraftMessage chat_id:int53 draft_message:draftMessage positions:vector<chatPosition> = Update;
-
-//@description Chat emoji status has changed
-//@chat_id Chat identifier
-//@emoji_status The new chat emoji status; may be null
-updateChatEmojiStatus chat_id:int53 emoji_status:emojiStatus = Update;
-
-//@description The message sender that is selected to send messages in a chat has changed @chat_id Chat identifier @message_sender_id New value of message_sender_id; may be null if the user can't change message sender
-updateChatMessageSender chat_id:int53 message_sender_id:MessageSender = Update;
-
-//@description The message auto-delete or self-destruct timer setting for a chat was changed @chat_id Chat identifier @message_auto_delete_time New value of message_auto_delete_time
-updateChatMessageAutoDeleteTime chat_id:int53 message_auto_delete_time:int32 = Update;
-
-//@description Notification settings for a chat were changed @chat_id Chat identifier @notification_settings The new notification settings
-updateChatNotificationSettings chat_id:int53 notification_settings:chatNotificationSettings = Update;
-
-//@description The chat pending join requests were changed @chat_id Chat identifier @pending_join_requests The new data about pending join requests; may be null
-updateChatPendingJoinRequests chat_id:int53 pending_join_requests:chatJoinRequestsInfo = Update;
-
-//@description The default chat reply markup was changed. Can occur because new messages with reply markup were received or because an old reply markup was hidden by the user
-//@chat_id Chat identifier
-//@reply_markup_message_id Identifier of the message from which reply markup needs to be used; 0 if there is no default custom reply markup in the chat
-updateChatReplyMarkup chat_id:int53 reply_markup_message_id:int53 = Update;
-
-//@description The chat background was changed @chat_id Chat identifier @background The new chat background; may be null if background was reset to default
-updateChatBackground chat_id:int53 background:chatBackground = Update;
-
-//@description The chat theme was changed @chat_id Chat identifier @theme_name The new name of the chat theme; may be empty if theme was reset to default
-updateChatTheme chat_id:int53 theme_name:string = Update;
-
-//@description The chat unread_mention_count has changed @chat_id Chat identifier @unread_mention_count The number of unread mention messages left in the chat
-updateChatUnreadMentionCount chat_id:int53 unread_mention_count:int32 = Update;
-
-//@description The chat unread_reaction_count has changed @chat_id Chat identifier @unread_reaction_count The number of messages with unread reactions left in the chat
-updateChatUnreadReactionCount chat_id:int53 unread_reaction_count:int32 = Update;
-
-//@description A chat video chat state has changed @chat_id Chat identifier @video_chat New value of video_chat
-updateChatVideoChat chat_id:int53 video_chat:videoChat = Update;
-
-//@description The value of the default disable_notification parameter, used when a message is sent to the chat, was changed @chat_id Chat identifier @default_disable_notification The new default_disable_notification value
-updateChatDefaultDisableNotification chat_id:int53 default_disable_notification:Bool = Update;
-
-//@description A chat content was allowed or restricted for saving @chat_id Chat identifier @has_protected_content New value of has_protected_content
-updateChatHasProtectedContent chat_id:int53 has_protected_content:Bool = Update;
-
-//@description Translation of chat messages was enabled or disabled @chat_id Chat identifier @is_translatable New value of is_translatable
-updateChatIsTranslatable chat_id:int53 is_translatable:Bool = Update;
-
-//@description A chat was marked as unread or was read @chat_id Chat identifier @is_marked_as_unread New value of is_marked_as_unread
-updateChatIsMarkedAsUnread chat_id:int53 is_marked_as_unread:Bool = Update;
-
-//@description A chat default appearance has changed @chat_id Chat identifier @view_as_topics New value of view_as_topics
-updateChatViewAsTopics chat_id:int53 view_as_topics:Bool = Update;
-
-//@description A chat was blocked or unblocked @chat_id Chat identifier @block_list Block list to which the chat is added; may be null if none
-updateChatBlockList chat_id:int53 block_list:BlockList = Update;
-
-//@description A chat's has_scheduled_messages field has changed @chat_id Chat identifier @has_scheduled_messages New value of has_scheduled_messages
-updateChatHasScheduledMessages chat_id:int53 has_scheduled_messages:Bool = Update;
-
-//@description The list of chat folders or a chat folder has changed
-//@chat_folders The new list of chat folders
-//@main_chat_list_position Position of the main chat list among chat folders, 0-based
-//@are_tags_enabled True, if folder tags are enabled
-updateChatFolders chat_folders:vector<chatFolderInfo> main_chat_list_position:int32 are_tags_enabled:Bool = Update;
-
-//@description The number of online group members has changed. This update with non-zero number of online group members is sent only for currently opened chats.
-//-There is no guarantee that it is sent just after the number of online users has changed
-//@chat_id Identifier of the chat
-//@online_member_count New number of online members in the chat, or 0 if unknown
-updateChatOnlineMemberCount chat_id:int53 online_member_count:int32 = Update;
-
-//@description Basic information about a Saved Messages topic has changed. This update is guaranteed to come before the topic identifier is returned to the application
-//@topic New data about the topic
-updateSavedMessagesTopic topic:savedMessagesTopic = Update;
-
-//@description Number of Saved Messages topics has changed @topic_count Approximate total number of Saved Messages topics
-updateSavedMessagesTopicCount topic_count:int32 = Update;
-
-//@description Basic information about a quick reply shortcut has changed. This update is guaranteed to come before the quick shortcut name is returned to the application
-//@shortcut New data about the shortcut
-updateQuickReplyShortcut shortcut:quickReplyShortcut = Update;
-
-//@description A quick reply shortcut and all its messages were deleted @shortcut_id The identifier of the deleted shortcut
-updateQuickReplyShortcutDeleted shortcut_id:int32 = Update;
-
-//@description The list of quick reply shortcuts has changed @shortcut_ids The new list of identifiers of quick reply shortcuts
-updateQuickReplyShortcuts shortcut_ids:vector<int32> = Update;
-
-//@description The list of quick reply shortcut messages has changed
-//@shortcut_id The identifier of the shortcut
-//@messages The new list of quick reply messages for the shortcut in order from the first to the last sent
-updateQuickReplyShortcutMessages shortcut_id:int32 messages:vector<quickReplyMessage> = Update;
-
-//@description Basic information about a topic in a forum chat was changed @chat_id Chat identifier @info New information about the topic
-updateForumTopicInfo chat_id:int53 info:forumTopicInfo = Update;
-
-//@description Notification settings for some type of chats were updated @scope Types of chats for which notification settings were updated @notification_settings The new notification settings
-updateScopeNotificationSettings scope:NotificationSettingsScope notification_settings:scopeNotificationSettings = Update;
-
-//@description Notification settings for reactions were updated @notification_settings The new notification settings
-updateReactionNotificationSettings notification_settings:reactionNotificationSettings = Update;
-
-//@description A notification was changed @notification_group_id Unique notification group identifier @notification Changed notification
-updateNotification notification_group_id:int32 notification:notification = Update;
-
-//@description A list of active notifications in a notification group has changed
-//@notification_group_id Unique notification group identifier
-//@type New type of the notification group
-//@chat_id Identifier of a chat to which all notifications in the group belong
-//@notification_settings_chat_id Chat identifier, which notification settings must be applied to the added notifications
-//@notification_sound_id Identifier of the notification sound to be played; 0 if sound is disabled
-//@total_count Total number of unread notifications in the group, can be bigger than number of active notifications
-//@added_notifications List of added group notifications, sorted by notification identifier
-//@removed_notification_ids Identifiers of removed group notifications, sorted by notification identifier
-updateNotificationGroup notification_group_id:int32 type:NotificationGroupType chat_id:int53 notification_settings_chat_id:int53 notification_sound_id:int64 total_count:int32 added_notifications:vector<notification> removed_notification_ids:vector<int32> = Update;
-
-//@description Contains active notifications that were shown on previous application launches. This update is sent only if the message database is used. In that case it comes once before any updateNotification and updateNotificationGroup update @groups Lists of active notification groups
-updateActiveNotifications groups:vector<notificationGroup> = Update;
-
-//@description Describes whether there are some pending notification updates. Can be used to prevent application from killing, while there are some pending notifications
-//@have_delayed_notifications True, if there are some delayed notification updates, which will be sent soon
-//@have_unreceived_notifications True, if there can be some yet unreceived notifications, which are being fetched from the server
-updateHavePendingNotifications have_delayed_notifications:Bool have_unreceived_notifications:Bool = Update;
-
-//@description Some messages were deleted
-//@chat_id Chat identifier
-//@message_ids Identifiers of the deleted messages
-//@is_permanent True, if the messages are permanently deleted by a user (as opposed to just becoming inaccessible)
-//@from_cache True, if the messages are deleted only from the cache and can possibly be retrieved again in the future
-updateDeleteMessages chat_id:int53 message_ids:vector<int53> is_permanent:Bool from_cache:Bool = Update;
-
-//@description A message sender activity in the chat has changed
-//@chat_id Chat identifier
-//@message_thread_id If not 0, the message thread identifier in which the action was performed
-//@sender_id Identifier of a message sender performing the action
-//@action The action
-updateChatAction chat_id:int53 message_thread_id:int53 sender_id:MessageSender action:ChatAction = Update;
-
-//@description The user went online or offline @user_id User identifier @status New status of the user
-updateUserStatus user_id:int53 status:UserStatus = Update;
-
-//@description Some data of a user has changed. This update is guaranteed to come before the user identifier is returned to the application @user New data about the user
-updateUser user:user = Update;
-
-//@description Some data of a basic group has changed. This update is guaranteed to come before the basic group identifier is returned to the application @basic_group New data about the group
-updateBasicGroup basic_group:basicGroup = Update;
-
-//@description Some data of a supergroup or a channel has changed. This update is guaranteed to come before the supergroup identifier is returned to the application @supergroup New data about the supergroup
-updateSupergroup supergroup:supergroup = Update;
-
-//@description Some data of a secret chat has changed. This update is guaranteed to come before the secret chat identifier is returned to the application @secret_chat New data about the secret chat
-updateSecretChat secret_chat:secretChat = Update;
-
-//@description Some data in userFullInfo has been changed @user_id User identifier @user_full_info New full information about the user
-updateUserFullInfo user_id:int53 user_full_info:userFullInfo = Update;
-
-//@description Some data in basicGroupFullInfo has been changed @basic_group_id Identifier of a basic group @basic_group_full_info New full information about the group
-updateBasicGroupFullInfo basic_group_id:int53 basic_group_full_info:basicGroupFullInfo = Update;
-
-//@description Some data in supergroupFullInfo has been changed @supergroup_id Identifier of the supergroup or channel @supergroup_full_info New full information about the supergroup
-updateSupergroupFullInfo supergroup_id:int53 supergroup_full_info:supergroupFullInfo = Update;
-
-//@description A service notification from the server was received. Upon receiving this the application must show a popup with the content of the notification
-//@type Notification type. If type begins with "AUTH_KEY_DROP_", then two buttons "Cancel" and "Log out" must be shown under notification; if user presses the second, all local data must be destroyed using Destroy method
-//@content Notification content
-updateServiceNotification type:string content:MessageContent = Update;
-
-//@description Information about a file was updated @file New data about the file
-updateFile file:file = Update;
-
-//@description The file generation process needs to be started by the application. Use setFileGenerationProgress and finishFileGeneration to generate the file
-//@generation_id Unique identifier for the generation process
-//@original_path The original path specified by the application in inputFileGenerated
-//@destination_path The path to a file that must be created and where the new file must be generated by the application.
-//-If the application has no access to the path, it can use writeGeneratedFilePart to generate the file
-//@conversion If the conversion is "#url#" than original_path contains an HTTP/HTTPS URL of a file that must be downloaded by the application.
-//-Otherwise, this is the conversion specified by the application in inputFileGenerated
-updateFileGenerationStart generation_id:int64 original_path:string destination_path:string conversion:string = Update;
-
-//@description File generation is no longer needed @generation_id Unique identifier for the generation process
-updateFileGenerationStop generation_id:int64 = Update;
-
-//@description The state of the file download list has changed
-//@total_size Total size of files in the file download list, in bytes
-//@total_count Total number of files in the file download list
-//@downloaded_size Total downloaded size of files in the file download list, in bytes
-updateFileDownloads total_size:int53 total_count:int32 downloaded_size:int53 = Update;
-
-//@description A file was added to the file download list. This update is sent only after file download list is loaded for the first time @file_download The added file download @counts New number of being downloaded and recently downloaded files found
-updateFileAddedToDownloads file_download:fileDownload counts:downloadedFileCounts = Update;
-
-//@description A file download was changed. This update is sent only after file download list is loaded for the first time
-//@file_id File identifier
-//@complete_date Point in time (Unix timestamp) when the file downloading was completed; 0 if the file downloading isn't completed
-//@is_paused True, if downloading of the file is paused
-//@counts New number of being downloaded and recently downloaded files found
-updateFileDownload file_id:int32 complete_date:int32 is_paused:Bool counts:downloadedFileCounts = Update;
-
-//@description A file was removed from the file download list. This update is sent only after file download list is loaded for the first time @file_id File identifier @counts New number of being downloaded and recently downloaded files found
-updateFileRemovedFromDownloads file_id:int32 counts:downloadedFileCounts = Update;
-
-//@description A request can't be completed unless application verification is performed; for official mobile applications only.
-//-The method setApplicationVerificationToken must be called once the verification is completed or failed
-//@verification_id Unique identifier for the verification process
-//@nonce Unique base64url-encoded nonce for the classic Play Integrity verification (https://developer.android.com/google/play/integrity/classic) for Android,
-//-or a unique string to compare with verify_nonce field from a push notification for iOS
-//@cloud_project_number Cloud project number to pass to the Play Integrity API on Android
-updateApplicationVerificationRequired verification_id:int53 nonce:string cloud_project_number:int64 = Update;
-
-//@description A request can't be completed unless reCAPTCHA verification is performed; for official mobile applications only.
-//-The method setApplicationVerificationToken must be called once the verification is completed or failed
-//@verification_id Unique identifier for the verification process
-//@action The action for the check
-//@recaptcha_key_id Identifier of the reCAPTCHA key
-updateApplicationRecaptchaVerificationRequired verification_id:int53 action:string recaptcha_key_id:string = Update;
-
-//@description New call was created or information about a call was updated @call New data about a call
-updateCall call:call = Update;
-
-//@description Information about a group call was updated @group_call New data about a group call
-updateGroupCall group_call:groupCall = Update;
-
-//@description Information about a group call participant was changed. The updates are sent only after the group call is received through getGroupCall and only if the call is joined or being joined
-//@group_call_id Identifier of group call
-//@participant New data about a participant
-updateGroupCallParticipant group_call_id:int32 participant:groupCallParticipant = Update;
-
-//@description New call signaling data arrived @call_id The call identifier @data The data
-updateNewCallSignalingData call_id:int32 data:bytes = Update;
-
-//@description Some privacy setting rules have been changed @setting The privacy setting @rules New privacy rules
-updateUserPrivacySettingRules setting:UserPrivacySetting rules:userPrivacySettingRules = Update;
-
-//@description Number of unread messages in a chat list has changed. This update is sent only if the message database is used
-//@chat_list The chat list with changed number of unread messages
-//@unread_count Total number of unread messages
-//@unread_unmuted_count Total number of unread messages in unmuted chats
-updateUnreadMessageCount chat_list:ChatList unread_count:int32 unread_unmuted_count:int32 = Update;
-
-//@description Number of unread chats, i.e. with unread messages or marked as unread, has changed. This update is sent only if the message database is used
-//@chat_list The chat list with changed number of unread messages
-//@total_count Approximate total number of chats in the chat list
-//@unread_count Total number of unread chats
-//@unread_unmuted_count Total number of unread unmuted chats
-//@marked_as_unread_count Total number of chats marked as unread
-//@marked_as_unread_unmuted_count Total number of unmuted chats marked as unread
-updateUnreadChatCount chat_list:ChatList total_count:int32 unread_count:int32 unread_unmuted_count:int32 marked_as_unread_count:int32 marked_as_unread_unmuted_count:int32 = Update;
-
-//@description A story was changed @story The new information about the story
-updateStory story:story = Update;
-
-//@description A story became inaccessible @story_sender_chat_id Identifier of the chat that posted the story @story_id Story identifier
-updateStoryDeleted story_sender_chat_id:int53 story_id:int32 = Update;
-
-//@description A story has been successfully sent @story The sent story @old_story_id The previous temporary story identifier
-updateStorySendSucceeded story:story old_story_id:int32 = Update;
-
-//@description A story failed to send. If the story sending is canceled, then updateStoryDeleted will be received instead of this update
-//@story The failed to send story
-//@error The cause of the story sending failure
-//@error_type Type of the error; may be null if unknown
-updateStorySendFailed story:story error:error error_type:CanSendStoryResult = Update;
-
-//@description The list of active stories posted by a specific chat has changed
-//@active_stories The new list of active stories
-updateChatActiveStories active_stories:chatActiveStories = Update;
-
-//@description Number of chats in a story list has changed @story_list The story list @chat_count Approximate total number of chats with active stories in the list
-updateStoryListChatCount story_list:StoryList chat_count:int32 = Update;
-
-//@description Story stealth mode settings have changed
-//@active_until_date Point in time (Unix timestamp) until stealth mode is active; 0 if it is disabled
-//@cooldown_until_date Point in time (Unix timestamp) when stealth mode can be enabled again; 0 if there is no active cooldown
-updateStoryStealthMode active_until_date:int32 cooldown_until_date:int32 = Update;
-
-//@description An option changed its value @name The option name @value The new option value
-updateOption name:string value:OptionValue = Update;
-
-//@description A sticker set has changed @sticker_set The sticker set
-updateStickerSet sticker_set:stickerSet = Update;
-
-//@description The list of installed sticker sets was updated @sticker_type Type of the affected stickers @sticker_set_ids The new list of installed ordinary sticker sets
-updateInstalledStickerSets sticker_type:StickerType sticker_set_ids:vector<int64> = Update;
-
-//@description The list of trending sticker sets was updated or some of them were viewed @sticker_type Type of the affected stickers @sticker_sets The prefix of the list of trending sticker sets with the newest trending sticker sets
-updateTrendingStickerSets sticker_type:StickerType sticker_sets:trendingStickerSets = Update;
-
-//@description The list of recently used stickers was updated @is_attached True, if the list of stickers attached to photo or video files was updated; otherwise, the list of sent stickers is updated @sticker_ids The new list of file identifiers of recently used stickers
-updateRecentStickers is_attached:Bool sticker_ids:vector<int32> = Update;
-
-//@description The list of favorite stickers was updated @sticker_ids The new list of file identifiers of favorite stickers
-updateFavoriteStickers sticker_ids:vector<int32> = Update;
-
-//@description The list of saved animations was updated @animation_ids The new list of file identifiers of saved animations
-updateSavedAnimations animation_ids:vector<int32> = Update;
-
-//@description The list of saved notification sounds was updated. This update may not be sent until information about a notification sound was requested for the first time @notification_sound_ids The new list of identifiers of saved notification sounds
-updateSavedNotificationSounds notification_sound_ids:vector<int64> = Update;
-
-//@description The default background has changed @for_dark_theme True, if default background for dark theme has changed @background The new default background; may be null
-updateDefaultBackground for_dark_theme:Bool background:background = Update;
-
-//@description The list of available chat themes has changed @chat_themes The new list of chat themes
-updateChatThemes chat_themes:vector<chatTheme> = Update;
-
-//@description The list of supported accent colors has changed
-//@colors Information about supported colors; colors with identifiers 0 (red), 1 (orange), 2 (purple/violet), 3 (green), 4 (cyan), 5 (blue), 6 (pink) must always be supported
-//-and aren't included in the list. The exact colors for the accent colors with identifiers 0-6 must be taken from the app theme
-//@available_accent_color_ids The list of accent color identifiers, which can be set through setAccentColor and setChatAccentColor. The colors must be shown in the specified order
-updateAccentColors colors:vector<accentColor> available_accent_color_ids:vector<int32> = Update;
-
-//@description The list of supported accent colors for user profiles has changed
-//@colors Information about supported colors
-//@available_accent_color_ids The list of accent color identifiers, which can be set through setProfileAccentColor and setChatProfileAccentColor. The colors must be shown in the specified order
-updateProfileAccentColors colors:vector<profileAccentColor> available_accent_color_ids:vector<int32> = Update;
-
-//@description Some language pack strings have been updated @localization_target Localization target to which the language pack belongs @language_pack_id Identifier of the updated language pack @strings List of changed language pack strings; empty if all strings have changed
-updateLanguagePackStrings localization_target:string language_pack_id:string strings:vector<languagePackString> = Update;
-
-//@description The connection state has changed. This update must be used only to show a human-readable description of the connection state @state The new connection state
-updateConnectionState state:ConnectionState = Update;
-
-//@description The freeze state of the current user's account has changed
-//@is_frozen True, if the account is frozen
-//@freezing_date Point in time (Unix timestamp) when the account was frozen; 0 if the account isn't frozen
-//@deletion_date Point in time (Unix timestamp) when the account will be deleted and can't be unfrozen; 0 if the account isn't frozen
-//@appeal_link The link to open to send an appeal to unfreeze the account
-updateFreezeState is_frozen:Bool freezing_date:int32 deletion_date:int32 appeal_link:string = Update;
-
-//@description New terms of service must be accepted by the user. If the terms of service are declined, then the deleteAccount method must be called with the reason "Decline ToS update" @terms_of_service_id Identifier of the terms of service @terms_of_service The new terms of service
-updateTermsOfService terms_of_service_id:string terms_of_service:termsOfService = Update;
-
-//@description The first unconfirmed session has changed @session The unconfirmed session; may be null if none
-updateUnconfirmedSession session:unconfirmedSession = Update;
-
-//@description The list of bots added to attachment or side menu has changed @bots The new list of bots. The bots must not be shown on scheduled messages screen
-updateAttachmentMenuBots bots:vector<attachmentMenuBot> = Update;
-
-//@description A message was sent by an opened Web App, so the Web App needs to be closed @web_app_launch_id Identifier of Web App launch
-updateWebAppMessageSent web_app_launch_id:int64 = Update;
-
-//@description The list of active emoji reactions has changed @emojis The new list of active emoji reactions
-updateActiveEmojiReactions emojis:vector<string> = Update;
-
-//@description The list of available message effects has changed
-//@reaction_effect_ids The new list of available message effects from emoji reactions
-//@sticker_effect_ids The new list of available message effects from Premium stickers
-updateAvailableMessageEffects reaction_effect_ids:vector<int64> sticker_effect_ids:vector<int64> = Update;
-
-//@description The type of default reaction has changed @reaction_type The new type of the default reaction
-updateDefaultReactionType reaction_type:ReactionType = Update;
-
-//@description The type of default paid reaction has changed @type The new type of the default paid reaction
-updateDefaultPaidReactionType type:PaidReactionType = Update;
-
-//@description Tags used in Saved Messages or a Saved Messages topic have changed
-//@saved_messages_topic_id Identifier of Saved Messages topic which tags were changed; 0 if tags for the whole chat has changed
-//@tags The new tags
-updateSavedMessagesTags saved_messages_topic_id:int53 tags:savedMessagesTags = Update;
-
-//@description The list of messages with active live location that need to be updated by the application has changed. The list is persistent across application restarts only if the message database is used
-//@messages The list of messages with active live locations
-updateActiveLiveLocationMessages messages:vector<message> = Update;
-
-//@description The number of Telegram Stars owned by the current user has changed @star_amount The new amount of owned Telegram Stars
-updateOwnedStarCount star_amount:starAmount = Update;
-
-//@description The revenue earned from sponsored messages in a chat has changed. If chat revenue screen is opened, then getChatRevenueTransactions may be called to fetch new transactions
-//@chat_id Identifier of the chat
-//@revenue_amount New amount of earned revenue
-updateChatRevenueAmount chat_id:int53 revenue_amount:chatRevenueAmount = Update;
-
-//@description The Telegram Star revenue earned by a bot or a chat has changed. If Telegram Star transaction screen of the chat is opened, then getStarTransactions may be called to fetch new transactions
-//@owner_id Identifier of the owner of the Telegram Stars
-//@status New Telegram Star revenue status
-updateStarRevenueStatus owner_id:MessageSender status:starRevenueStatus = Update;
-
-//@description The parameters of speech recognition without Telegram Premium subscription has changed
-//@max_media_duration The maximum allowed duration of media for speech recognition without Telegram Premium subscription, in seconds
-//@weekly_count The total number of allowed speech recognitions per week; 0 if none
-//@left_count Number of left speech recognition attempts this week
-//@next_reset_date Point in time (Unix timestamp) when the weekly number of tries will reset; 0 if unknown
-updateSpeechRecognitionTrial max_media_duration:int32 weekly_count:int32 left_count:int32 next_reset_date:int32 = Update;
-
-//@description The list of supported dice emojis has changed @emojis The new list of supported dice emojis
-updateDiceEmojis emojis:vector<string> = Update;
-
-//@description Some animated emoji message was clicked and a big animated sticker must be played if the message is visible on the screen. chatActionWatchingAnimations with the text of the message needs to be sent if the sticker is played
-//@chat_id Chat identifier
-//@message_id Message identifier
-//@sticker The animated sticker to be played
-updateAnimatedEmojiMessageClicked chat_id:int53 message_id:int53 sticker:sticker = Update;
-
-//@description The parameters of animation search through getOption("animation_search_bot_username") bot has changed @provider Name of the animation search provider @emojis The new list of emojis suggested for searching
-updateAnimationSearchParameters provider:string emojis:vector<string> = Update;
-
-//@description The list of suggested to the user actions has changed @added_actions Added suggested actions @removed_actions Removed suggested actions
-updateSuggestedActions added_actions:vector<SuggestedAction> removed_actions:vector<SuggestedAction> = Update;
-
-//@description Download or upload file speed for the user was limited, but it can be restored by subscription to Telegram Premium. The notification can be postponed until a being downloaded or uploaded file is visible to the user.
-//-Use getOption("premium_download_speedup") or getOption("premium_upload_speedup") to get expected speedup after subscription to Telegram Premium
-//@is_upload True, if upload speed was limited; false, if download speed was limited
-updateSpeedLimitNotification is_upload:Bool = Update;
-
-//@description The list of contacts that had birthdays recently or will have birthday soon has changed @close_birthday_users List of contact users with close birthday
-updateContactCloseBirthdays close_birthday_users:vector<closeBirthdayUser> = Update;
-
-//@description Autosave settings for some type of chats were updated @scope Type of chats for which autosave settings were updated @settings The new autosave settings; may be null if the settings are reset to default
-updateAutosaveSettings scope:AutosaveSettingsScope settings:scopeAutosaveSettings = Update;
-
-//@description A business connection has changed; for bots only @connection New data about the connection
-updateBusinessConnection connection:businessConnection = Update;
-
-//@description A new message was added to a business account; for bots only @connection_id Unique identifier of the business connection @message The new message
-updateNewBusinessMessage connection_id:string message:businessMessage = Update;
-
-//@description A message in a business account was edited; for bots only @connection_id Unique identifier of the business connection @message The edited message
-updateBusinessMessageEdited connection_id:string message:businessMessage = Update;
-
-//@description Messages in a business account were deleted; for bots only
-//@connection_id Unique identifier of the business connection
-//@chat_id Identifier of a chat in the business account in which messages were deleted
-//@message_ids Unique message identifiers of the deleted messages
-updateBusinessMessagesDeleted connection_id:string chat_id:int53 message_ids:vector<int53> = Update;
-
-//@description A new incoming inline query; for bots only
-//@id Unique query identifier
-//@sender_user_id Identifier of the user who sent the query
-//@user_location User location; may be null
-//@chat_type The type of the chat from which the query originated; may be null if unknown
-//@query Text of the query
-//@offset Offset of the first entry to return
-updateNewInlineQuery id:int64 sender_user_id:int53 user_location:location chat_type:ChatType query:string offset:string = Update;
-
-//@description The user has chosen a result of an inline query; for bots only
-//@sender_user_id Identifier of the user who sent the query
-//@user_location User location; may be null
-//@query Text of the query
-//@result_id Identifier of the chosen result
-//@inline_message_id Identifier of the sent inline message, if known
-updateNewChosenInlineResult sender_user_id:int53 user_location:location query:string result_id:string inline_message_id:string = Update;
-
-//@description A new incoming callback query; for bots only
-//@id Unique query identifier
-//@sender_user_id Identifier of the user who sent the query
-//@chat_id Identifier of the chat where the query was sent
-//@message_id Identifier of the message from which the query originated
-//@chat_instance Identifier that uniquely corresponds to the chat to which the message was sent
-//@payload Query payload
-updateNewCallbackQuery id:int64 sender_user_id:int53 chat_id:int53 message_id:int53 chat_instance:int64 payload:CallbackQueryPayload = Update;
-
-//@description A new incoming callback query from a message sent via a bot; for bots only
-//@id Unique query identifier
-//@sender_user_id Identifier of the user who sent the query
-//@inline_message_id Identifier of the inline message from which the query originated
-//@chat_instance An identifier uniquely corresponding to the chat a message was sent to
-//@payload Query payload
-updateNewInlineCallbackQuery id:int64 sender_user_id:int53 inline_message_id:string chat_instance:int64 payload:CallbackQueryPayload = Update;
-
-//@description A new incoming callback query from a business message; for bots only
-//@id Unique query identifier
-//@sender_user_id Identifier of the user who sent the query
-//@connection_id Unique identifier of the business connection
-//@message The message from the business account from which the query originated
-//@chat_instance An identifier uniquely corresponding to the chat a message was sent to
-//@payload Query payload
-updateNewBusinessCallbackQuery id:int64 sender_user_id:int53 connection_id:string message:businessMessage chat_instance:int64 payload:CallbackQueryPayload = Update;
-
-//@description A new incoming shipping query; for bots only. Only for invoices with flexible price
-//@id Unique query identifier
-//@sender_user_id Identifier of the user who sent the query
-//@invoice_payload Invoice payload
-//@shipping_address User shipping address
-updateNewShippingQuery id:int64 sender_user_id:int53 invoice_payload:string shipping_address:address = Update;
-
-//@description A new incoming pre-checkout query; for bots only. Contains full information about a checkout
-//@id Unique query identifier
-//@sender_user_id Identifier of the user who sent the query
-//@currency Currency for the product price
-//@total_amount Total price for the product, in the smallest units of the currency
-//@invoice_payload Invoice payload
-//@shipping_option_id Identifier of a shipping option chosen by the user; may be empty if not applicable
-//@order_info Information about the order; may be null
-updateNewPreCheckoutQuery id:int64 sender_user_id:int53 currency:string total_amount:int53 invoice_payload:bytes shipping_option_id:string order_info:orderInfo = Update;
-
-//@description A new incoming event; for bots only @event A JSON-serialized event
-updateNewCustomEvent event:string = Update;
-
-//@description A new incoming query; for bots only @id The query identifier @data JSON-serialized query data @timeout Query timeout
-updateNewCustomQuery id:int64 data:string timeout:int32 = Update;
-
-//@description A poll was updated; for bots only @poll New data about the poll
-updatePoll poll:poll = Update;
-
-//@description A user changed the answer to a poll; for bots only
-//@poll_id Unique poll identifier
-//@voter_id Identifier of the message sender that changed the answer to the poll
-//@option_ids 0-based identifiers of answer options, chosen by the user
-updatePollAnswer poll_id:int64 voter_id:MessageSender option_ids:vector<int32> = Update;
-
-//@description User rights changed in a chat; for bots only
-//@chat_id Chat identifier
-//@actor_user_id Identifier of the user, changing the rights
-//@date Point in time (Unix timestamp) when the user rights were changed
-//@invite_link If user has joined the chat using an invite link, the invite link; may be null
-//@via_join_request True, if the user has joined the chat after sending a join request and being approved by an administrator
-//@via_chat_folder_invite_link True, if the user has joined the chat using an invite link for a chat folder
-//@old_chat_member Previous chat member
-//@new_chat_member New chat member
-updateChatMember chat_id:int53 actor_user_id:int53 date:int32 invite_link:chatInviteLink via_join_request:Bool via_chat_folder_invite_link:Bool old_chat_member:chatMember new_chat_member:chatMember = Update;
-
-//@description A user sent a join request to a chat; for bots only
-//@chat_id Chat identifier
-//@request Join request
-//@user_chat_id Chat identifier of the private chat with the user
-//@invite_link The invite link, which was used to send join request; may be null
-updateNewChatJoinRequest chat_id:int53 request:chatJoinRequest user_chat_id:int53 invite_link:chatInviteLink = Update;
-
-//@description A chat boost has changed; for bots only
-//@chat_id Chat identifier
-//@boost New information about the boost
-updateChatBoost chat_id:int53 boost:chatBoost = Update;
-
-//@description User changed its reactions on a message with public reactions; for bots only
-//@chat_id Chat identifier
-//@message_id Message identifier
-//@actor_id Identifier of the user or chat that changed reactions
-//@date Point in time (Unix timestamp) when the reactions were changed
-//@old_reaction_types Old list of chosen reactions
-//@new_reaction_types New list of chosen reactions
-updateMessageReaction chat_id:int53 message_id:int53 actor_id:MessageSender date:int32 old_reaction_types:vector<ReactionType> new_reaction_types:vector<ReactionType> = Update;
-
-//@description Reactions added to a message with anonymous reactions have changed; for bots only
-//@chat_id Chat identifier
-//@message_id Message identifier
-//@date Point in time (Unix timestamp) when the reactions were changed
-//@reactions The list of reactions added to the message
-updateMessageReactions chat_id:int53 message_id:int53 date:int32 reactions:vector<messageReaction> = Update;
-
-//@description Paid media were purchased by a user; for bots only
-//@user_id User identifier
-//@payload Bot-specified payload for the paid media
-updatePaidMediaPurchased user_id:int53 payload:string = Update;
-
-
-//@description Contains a list of updates @updates List of updates
-updates updates:vector<Update> = Updates;
-
-
-//@class LogStream @description Describes a stream to which TDLib internal log is written
-
-//@description The log is written to stderr or an OS specific log
-logStreamDefault = LogStream;
-
-//@description The log is written to a file
-//@path Path to the file to where the internal TDLib log will be written
-//@max_file_size The maximum size of the file to where the internal TDLib log is written before the file will automatically be rotated, in bytes
-//@redirect_stderr Pass true to additionally redirect stderr to the log file. Ignored on Windows
-logStreamFile path:string max_file_size:int53 redirect_stderr:Bool = LogStream;
-
-//@description The log is written nowhere
-logStreamEmpty = LogStream;
-
-
-//@description Contains a TDLib internal log verbosity level @verbosity_level Log verbosity level
-logVerbosityLevel verbosity_level:int32 = LogVerbosityLevel;
-
-//@description Contains a list of available TDLib internal log tags @tags List of log tags
-logTags tags:vector<string> = LogTags;
-
-
-//@description Contains custom information about the user @message Information message @author Information author @date Information change date
-userSupportInfo message:formattedText author:string date:int32 = UserSupportInfo;
-
-
-//@description A simple object containing a number; for testing only @value Number
-testInt value:int32 = TestInt;
-//@description A simple object containing a string; for testing only @value String
-testString value:string = TestString;
-//@description A simple object containing a sequence of bytes; for testing only @value Bytes
-testBytes value:bytes = TestBytes;
-//@description A simple object containing a vector of numbers; for testing only @value Vector of numbers
-testVectorInt value:vector<int32> = TestVectorInt;
-//@description A simple object containing a vector of objects that hold a number; for testing only @value Vector of objects
-testVectorIntObject value:vector<testInt> = TestVectorIntObject;
-//@description A simple object containing a vector of strings; for testing only @value Vector of strings
-testVectorString value:vector<string> = TestVectorString;
-//@description A simple object containing a vector of objects that hold a string; for testing only @value Vector of objects
-testVectorStringObject value:vector<testString> = TestVectorStringObject;
-
----functions---
-
-//@description Returns the current authorization state. This is an offline method. For informational purposes only. Use updateAuthorizationState instead to maintain the current authorization state. Can be called before initialization
-getAuthorizationState = AuthorizationState;
-
-
-//@description Sets the parameters for TDLib initialization. Works only when the current authorization state is authorizationStateWaitTdlibParameters
-//@use_test_dc Pass true to use Telegram test environment instead of the production environment
-//@database_directory The path to the directory for the persistent database; if empty, the current working directory will be used
-//@files_directory The path to the directory for storing files; if empty, database_directory will be used
-//@database_encryption_key Encryption key for the database. If the encryption key is invalid, then an error with code 401 will be returned
-//@use_file_database Pass true to keep information about downloaded and uploaded files between application restarts
-//@use_chat_info_database Pass true to keep cache of users, basic groups, supergroups, channels and secret chats between restarts. Implies use_file_database
-//@use_message_database Pass true to keep cache of chats and messages between restarts. Implies use_chat_info_database
-//@use_secret_chats Pass true to enable support for secret chats
-//@api_id Application identifier for Telegram API access, which can be obtained at https://my.telegram.org
-//@api_hash Application identifier hash for Telegram API access, which can be obtained at https://my.telegram.org
-//@system_language_code IETF language tag of the user's operating system language; must be non-empty
-//@device_model Model of the device the application is being run on; must be non-empty
-//@system_version Version of the operating system the application is being run on. If empty, the version is automatically detected by TDLib
-//@application_version Application version; must be non-empty
-setTdlibParameters use_test_dc:Bool database_directory:string files_directory:string database_encryption_key:bytes use_file_database:Bool use_chat_info_database:Bool use_message_database:Bool use_secret_chats:Bool api_id:int32 api_hash:string system_language_code:string device_model:string system_version:string application_version:string = Ok;
-
-//@description Sets the phone number of the user and sends an authentication code to the user. Works only when the current authorization state is authorizationStateWaitPhoneNumber,
-//-or if there is no pending authentication query and the current authorization state is authorizationStateWaitEmailAddress, authorizationStateWaitEmailCode, authorizationStateWaitCode, authorizationStateWaitRegistration, or authorizationStateWaitPassword
-//@phone_number The phone number of the user, in international format
-//@settings Settings for the authentication of the user's phone number; pass null to use default settings
-setAuthenticationPhoneNumber phone_number:string settings:phoneNumberAuthenticationSettings = Ok;
-
-//@description Sets the email address of the user and sends an authentication code to the email address. Works only when the current authorization state is authorizationStateWaitEmailAddress @email_address The email address of the user
-setAuthenticationEmailAddress email_address:string = Ok;
-
-//@description Resends an authentication code to the user. Works only when the current authorization state is authorizationStateWaitCode, the next_code_type of the result is not null
-//-and the server-specified timeout has passed, or when the current authorization state is authorizationStateWaitEmailCode
-//@reason Reason of code resending; pass null if unknown
-resendAuthenticationCode reason:ResendCodeReason = Ok;
-
-//@description Checks the authentication of an email address. Works only when the current authorization state is authorizationStateWaitEmailCode @code Email address authentication to check
-checkAuthenticationEmailCode code:EmailAddressAuthentication = Ok;
-
-//@description Checks the authentication code. Works only when the current authorization state is authorizationStateWaitCode @code Authentication code to check
-checkAuthenticationCode code:string = Ok;
-
-//@description Requests QR code authentication by scanning a QR code on another logged in device. Works only when the current authorization state is authorizationStateWaitPhoneNumber,
-//-or if there is no pending authentication query and the current authorization state is authorizationStateWaitEmailAddress, authorizationStateWaitEmailCode, authorizationStateWaitCode, authorizationStateWaitRegistration, or authorizationStateWaitPassword
-//@other_user_ids List of user identifiers of other users currently using the application
-requestQrCodeAuthentication other_user_ids:vector<int53> = Ok;
-
-//@description Finishes user registration. Works only when the current authorization state is authorizationStateWaitRegistration
-//@first_name The first name of the user; 1-64 characters
-//@last_name The last name of the user; 0-64 characters
-//@disable_notification Pass true to disable notification about the current user joining Telegram for other users that added them to contact list
-registerUser first_name:string last_name:string disable_notification:Bool = Ok;
-
-//@description Resets the login email address. May return an error with a message "TASK_ALREADY_EXISTS" if reset is still pending.
-//-Works only when the current authorization state is authorizationStateWaitEmailCode and authorization_state.can_reset_email_address == true
-resetAuthenticationEmailAddress = Ok;
-
-//@description Checks the 2-step verification password for correctness. Works only when the current authorization state is authorizationStateWaitPassword @password The 2-step verification password to check
-checkAuthenticationPassword password:string = Ok;
-
-//@description Requests to send a 2-step verification password recovery code to an email address that was previously set up. Works only when the current authorization state is authorizationStateWaitPassword
-requestAuthenticationPasswordRecovery = Ok;
-
-//@description Checks whether a 2-step verification password recovery code sent to an email address is valid. Works only when the current authorization state is authorizationStateWaitPassword @recovery_code Recovery code to check
-checkAuthenticationPasswordRecoveryCode recovery_code:string = Ok;
-
-//@description Recovers the 2-step verification password with a password recovery code sent to an email address that was previously set up. Works only when the current authorization state is authorizationStateWaitPassword
-//@recovery_code Recovery code to check
-//@new_password New 2-step verification password of the user; may be empty to remove the password
-//@new_hint New password hint; may be empty
-recoverAuthenticationPassword recovery_code:string new_password:string new_hint:string = Ok;
-
-//@description Sends Firebase Authentication SMS to the phone number of the user. Works only when the current authorization state is authorizationStateWaitCode and the server returned code of the type authenticationCodeTypeFirebaseAndroid or authenticationCodeTypeFirebaseIos
-//@token Play Integrity API or SafetyNet Attestation API token for the Android application, or secret from push notification for the iOS application
-sendAuthenticationFirebaseSms token:string = Ok;
-
-//@description Reports that authentication code wasn't delivered via SMS; for official mobile applications only. Works only when the current authorization state is authorizationStateWaitCode @mobile_network_code Current mobile network code
-reportAuthenticationCodeMissing mobile_network_code:string = Ok;
-
-//@description Checks the authentication token of a bot; to log in as a bot. Works only when the current authorization state is authorizationStateWaitPhoneNumber. Can be used instead of setAuthenticationPhoneNumber and checkAuthenticationCode to log in @token The bot token
-checkAuthenticationBotToken token:string = Ok;
-
-//@description Closes the TDLib instance after a proper logout. Requires an available network connection. All local data will be destroyed. After the logout completes, updateAuthorizationState with authorizationStateClosed will be sent
-logOut = Ok;
-
-//@description Closes the TDLib instance. All databases will be flushed to disk and properly closed. After the close completes, updateAuthorizationState with authorizationStateClosed will be sent. Can be called before initialization
-close = Ok;
-
-//@description Closes the TDLib instance, destroying all local data without a proper logout. The current user session will remain in the list of all active sessions. All local data will be destroyed.
-//-After the destruction completes updateAuthorizationState with authorizationStateClosed will be sent. Can be called before authorization
-destroy = Ok;
-
-
-//@description Confirms QR code authentication on another device. Returns created session on success @link A link from a QR code. The link must be scanned by the in-app camera
-confirmQrCodeAuthentication link:string = Session;
-
-
-//@description Returns all updates needed to restore current TDLib state, i.e. all actual updateAuthorizationState/updateUser/updateNewChat and others. This is especially useful if TDLib is run in a separate process. Can be called before initialization
-getCurrentState = Updates;
-
-
-//@description Changes the database encryption key. Usually the encryption key is never changed and is stored in some OS keychain @new_encryption_key New encryption key
-setDatabaseEncryptionKey new_encryption_key:bytes = Ok;
-
-
-//@description Returns the current state of 2-step verification
-getPasswordState = PasswordState;
-
-//@description Changes the 2-step verification password for the current user. If a new recovery email address is specified, then the change will not be applied until the new recovery email address is confirmed
-//@old_password Previous 2-step verification password of the user
-//@new_password New 2-step verification password of the user; may be empty to remove the password
-//@new_hint New password hint; may be empty
-//@set_recovery_email_address Pass true to change also the recovery email address
-//@new_recovery_email_address New recovery email address; may be empty
-setPassword old_password:string new_password:string new_hint:string set_recovery_email_address:Bool new_recovery_email_address:string = PasswordState;
-
-//@description Changes the login email address of the user. The email address can be changed only if the current user already has login email and passwordState.login_email_address_pattern is non-empty.
-//-The change will not be applied until the new login email address is confirmed with checkLoginEmailAddressCode. To use Apple ID/Google ID instead of an email address, call checkLoginEmailAddressCode directly
-//@new_login_email_address New login email address
-setLoginEmailAddress new_login_email_address:string = EmailAddressAuthenticationCodeInfo;
-
-//@description Resends the login email address verification code
-resendLoginEmailAddressCode = EmailAddressAuthenticationCodeInfo;
-
-//@description Checks the login email address authentication @code Email address authentication to check
-checkLoginEmailAddressCode code:EmailAddressAuthentication = Ok;
-
-//@description Returns a 2-step verification recovery email address that was previously set up. This method can be used to verify a password provided by the user @password The 2-step verification password for the current user
-getRecoveryEmailAddress password:string = RecoveryEmailAddress;
-
-//@description Changes the 2-step verification recovery email address of the user. If a new recovery email address is specified, then the change will not be applied until the new recovery email address is confirmed.
-//-If new_recovery_email_address is the same as the email address that is currently set up, this call succeeds immediately and aborts all other requests waiting for an email confirmation
-//@password The 2-step verification password of the current user
-//@new_recovery_email_address New recovery email address
-setRecoveryEmailAddress password:string new_recovery_email_address:string = PasswordState;
-
-//@description Checks the 2-step verification recovery email address verification code @code Verification code to check
-checkRecoveryEmailAddressCode code:string = PasswordState;
-
-//@description Resends the 2-step verification recovery email address verification code
-resendRecoveryEmailAddressCode = PasswordState;
-
-//@description Cancels verification of the 2-step verification recovery email address
-cancelRecoveryEmailAddressVerification = PasswordState;
-
-//@description Requests to send a 2-step verification password recovery code to an email address that was previously set up
-requestPasswordRecovery = EmailAddressAuthenticationCodeInfo;
-
-//@description Checks whether a 2-step verification password recovery code sent to an email address is valid @recovery_code Recovery code to check
-checkPasswordRecoveryCode recovery_code:string = Ok;
-
-//@description Recovers the 2-step verification password using a recovery code sent to an email address that was previously set up
-//@recovery_code Recovery code to check
-//@new_password New 2-step verification password of the user; may be empty to remove the password
-//@new_hint New password hint; may be empty
-recoverPassword recovery_code:string new_password:string new_hint:string = PasswordState;
-
-//@description Removes 2-step verification password without previous password and access to recovery email address. The password can't be reset immediately and the request needs to be repeated after the specified time
-resetPassword = ResetPasswordResult;
-
-//@description Cancels reset of 2-step verification password. The method can be called if passwordState.pending_reset_date > 0
-cancelPasswordReset = Ok;
-
-//@description Creates a new temporary password for processing payments @password The 2-step verification password of the current user @valid_for Time during which the temporary password will be valid, in seconds; must be between 60 and 86400
-createTemporaryPassword password:string valid_for:int32 = TemporaryPasswordState;
-
-//@description Returns information about the current temporary password
-getTemporaryPasswordState = TemporaryPasswordState;
-
-
-//@description Returns the current user
-getMe = User;
-
-//@description Returns information about a user by their identifier. This is an offline method if the current user is not a bot @user_id User identifier
-getUser user_id:int53 = User;
-
-//@description Returns full information about a user by their identifier @user_id User identifier
-getUserFullInfo user_id:int53 = UserFullInfo;
-
-//@description Returns information about a basic group by its identifier. This is an offline method if the current user is not a bot @basic_group_id Basic group identifier
-getBasicGroup basic_group_id:int53 = BasicGroup;
-
-//@description Returns full information about a basic group by its identifier @basic_group_id Basic group identifier
-getBasicGroupFullInfo basic_group_id:int53 = BasicGroupFullInfo;
-
-//@description Returns information about a supergroup or a channel by its identifier. This is an offline method if the current user is not a bot @supergroup_id Supergroup or channel identifier
-getSupergroup supergroup_id:int53 = Supergroup;
-
-//@description Returns full information about a supergroup or a channel by its identifier, cached for up to 1 minute @supergroup_id Supergroup or channel identifier
-getSupergroupFullInfo supergroup_id:int53 = SupergroupFullInfo;
-
-//@description Returns information about a secret chat by its identifier. This is an offline method @secret_chat_id Secret chat identifier
-getSecretChat secret_chat_id:int32 = SecretChat;
-
-//@description Returns information about a chat by its identifier. This is an offline method if the current user is not a bot @chat_id Chat identifier
-getChat chat_id:int53 = Chat;
-
-//@description Returns information about a message. Returns a 404 error if the message doesn't exist
-//@chat_id Identifier of the chat the message belongs to
-//@message_id Identifier of the message to get
-getMessage chat_id:int53 message_id:int53 = Message;
-
-//@description Returns information about a message, if it is available without sending network request. Returns a 404 error if message isn't available locally. This is an offline method
-//@chat_id Identifier of the chat the message belongs to
-//@message_id Identifier of the message to get
-getMessageLocally chat_id:int53 message_id:int53 = Message;
-
-//@description Returns information about a non-bundled message that is replied by a given message. Also, returns the pinned message, the game message, the invoice message,
-//-the message with a previously set same background, the giveaway message, and the topic creation message for messages of the types
-//-messagePinMessage, messageGameScore, messagePaymentSuccessful, messageChatSetBackground, messageGiveawayCompleted and topic messages without non-bundled replied message respectively.
-//-Returns a 404 error if the message doesn't exist
-//@chat_id Identifier of the chat the message belongs to
-//@message_id Identifier of the reply message
-getRepliedMessage chat_id:int53 message_id:int53 = Message;
-
-//@description Returns information about a newest pinned message in the chat. Returns a 404 error if the message doesn't exist @chat_id Identifier of the chat the message belongs to
-getChatPinnedMessage chat_id:int53 = Message;
-
-//@description Returns information about a message with the callback button that originated a callback query; for bots only @chat_id Identifier of the chat the message belongs to @message_id Message identifier @callback_query_id Identifier of the callback query
-getCallbackQueryMessage chat_id:int53 message_id:int53 callback_query_id:int64 = Message;
-
-//@description Returns information about messages. If a message is not found, returns null on the corresponding position of the result @chat_id Identifier of the chat the messages belong to @message_ids Identifiers of the messages to get
-getMessages chat_id:int53 message_ids:vector<int53> = Messages;
-
-//@description Returns properties of a message. This is an offline method @chat_id Chat identifier @message_id Identifier of the message
-getMessageProperties chat_id:int53 message_id:int53 = MessageProperties;
-
-//@description Returns information about a message thread. Can be used only if messageProperties.can_get_message_thread == true @chat_id Chat identifier @message_id Identifier of the message
-getMessageThread chat_id:int53 message_id:int53 = MessageThreadInfo;
-
-//@description Returns read date of a recent outgoing message in a private chat. The method can be called if messageProperties.can_get_read_date == true
-//@chat_id Chat identifier
-//@message_id Identifier of the message
-getMessageReadDate chat_id:int53 message_id:int53 = MessageReadDate;
-
-//@description Returns viewers of a recent outgoing message in a basic group or a supergroup chat. For video notes and voice notes only users, opened content of the message, are returned. The method can be called if messageProperties.can_get_viewers == true
-//@chat_id Chat identifier
-//@message_id Identifier of the message
-getMessageViewers chat_id:int53 message_id:int53 = MessageViewers;
-
-//@description Returns information about a file. This is an offline method @file_id Identifier of the file to get
-getFile file_id:int32 = File;
-
-//@description Returns information about a file by its remote identifier. This is an offline method. Can be used to register a URL as a file for further uploading, or sending as a message. Even the request succeeds, the file can be used only if it is still accessible to the user.
-//-For example, if the file is from a message, then the message must be not deleted and accessible to the user. If the file database is disabled, then the corresponding object with the file must be preloaded by the application
-//@remote_file_id Remote identifier of the file to get
-//@file_type File type; pass null if unknown
-getRemoteFile remote_file_id:string file_type:FileType = File;
-
-//@description Loads more chats from a chat list. The loaded chats and their positions in the chat list will be sent through updates. Chats are sorted by the pair (chat.position.order, chat.id) in descending order. Returns a 404 error if all chats have been loaded
-//@chat_list The chat list in which to load chats; pass null to load chats from the main chat list
-//@limit The maximum number of chats to be loaded. For optimal performance, the number of loaded chats is chosen by TDLib and can be smaller than the specified limit, even if the end of the list is not reached
-loadChats chat_list:ChatList limit:int32 = Ok;
-
-//@description Returns an ordered list of chats from the beginning of a chat list. For informational purposes only. Use loadChats and updates processing instead to maintain chat lists in a consistent state
-//@chat_list The chat list in which to return chats; pass null to get chats from the main chat list
-//@limit The maximum number of chats to be returned
-getChats chat_list:ChatList limit:int32 = Chats;
-
-//@description Searches a public chat by its username. Currently, only private chats, supergroups and channels can be public. Returns the chat if found; otherwise, an error is returned @username Username to be resolved
-searchPublicChat username:string = Chat;
-
-//@description Searches public chats by looking for specified query in their username and title. Currently, only private chats, supergroups and channels can be public. Returns a meaningful number of results.
-//-Excludes private chats with contacts and chats from the chat list from the results
-//@query Query to search for
-searchPublicChats query:string = Chats;
-
-//@description Searches for the specified query in the title and username of already known chats. This is an offline method. Returns chats in the order seen in the main chat list
-//@query Query to search for. If the query is empty, returns up to 50 recently found chats
-//@limit The maximum number of chats to be returned
-searchChats query:string limit:int32 = Chats;
-
-//@description Searches for the specified query in the title and username of already known chats via request to the server. Returns chats in the order seen in the main chat list @query Query to search for @limit The maximum number of chats to be returned
-searchChatsOnServer query:string limit:int32 = Chats;
-
-//@description Returns a list of channel chats recommended to the current user
-getRecommendedChats = Chats;
-
-//@description Returns a list of chats similar to the given chat @chat_id Identifier of the target chat; must be an identifier of a channel chat
-getChatSimilarChats chat_id:int53 = Chats;
-
-//@description Returns approximate number of chats similar to the given chat
-//@chat_id Identifier of the target chat; must be an identifier of a channel chat
-//@return_local Pass true to get the number of chats without sending network requests, or -1 if the number of chats is unknown locally
-getChatSimilarChatCount chat_id:int53 return_local:Bool = Count;
-
-//@description Informs TDLib that a chat was opened from the list of similar chats. The method is independent of openChat and closeChat methods
-//@chat_id Identifier of the original chat, which similar chats were requested
-//@opened_chat_id Identifier of the opened chat
-openChatSimilarChat chat_id:int53 opened_chat_id:int53 = Ok;
-
-//@description Returns a list of bots similar to the given bot @bot_user_id User identifier of the target bot
-getBotSimilarBots bot_user_id:int53 = Users;
-
-//@description Returns approximate number of bots similar to the given bot
-//@bot_user_id User identifier of the target bot
-//@return_local Pass true to get the number of bots without sending network requests, or -1 if the number of bots is unknown locally
-getBotSimilarBotCount bot_user_id:int53 return_local:Bool = Count;
-
-//@description Informs TDLib that a bot was opened from the list of similar bots
-//@bot_user_id Identifier of the original bot, which similar bots were requested
-//@opened_bot_user_id Identifier of the opened bot
-openBotSimilarBot bot_user_id:int53 opened_bot_user_id:int53 = Ok;
-
-//@description Returns a list of frequently used chats @category Category of chats to be returned @limit The maximum number of chats to be returned; up to 30
-getTopChats category:TopChatCategory limit:int32 = Chats;
-
-//@description Removes a chat from the list of frequently used chats. Supported only if the chat info database is enabled @category Category of frequently used chats @chat_id Chat identifier
-removeTopChat category:TopChatCategory chat_id:int53 = Ok;
-
-//@description Searches for the specified query in the title and username of up to 50 recently found chats. This is an offline method
-//@query Query to search for
-//@limit The maximum number of chats to be returned
-searchRecentlyFoundChats query:string limit:int32 = Chats;
-
-//@description Adds a chat to the list of recently found chats. The chat is added to the beginning of the list. If the chat is already in the list, it will be removed from the list first @chat_id Identifier of the chat to add
-addRecentlyFoundChat chat_id:int53 = Ok;
-
-//@description Removes a chat from the list of recently found chats @chat_id Identifier of the chat to be removed
-removeRecentlyFoundChat chat_id:int53 = Ok;
-
-//@description Clears the list of recently found chats
-clearRecentlyFoundChats = Ok;
-
-//@description Returns recently opened chats. This is an offline method. Returns chats in the order of last opening @limit The maximum number of chats to be returned
-getRecentlyOpenedChats limit:int32 = Chats;
-
-//@description Checks whether a username can be set for a chat @chat_id Chat identifier; must be identifier of a supergroup chat, or a channel chat, or a private chat with self, or 0 if the chat is being created @username Username to be checked
-checkChatUsername chat_id:int53 username:string = CheckChatUsernameResult;
-
-//@description Returns a list of public chats of the specified type, owned by the user @type Type of the public chats to return
-getCreatedPublicChats type:PublicChatType = Chats;
-
-//@description Checks whether the maximum number of owned public chats has been reached. Returns corresponding error if the limit was reached. The limit can be increased with Telegram Premium @type Type of the public chats, for which to check the limit
-checkCreatedPublicChatsLimit type:PublicChatType = Ok;
-
-//@description Returns a list of basic group and supergroup chats, which can be used as a discussion group for a channel. Returned basic group chats must be first upgraded to supergroups before they can be set as a discussion group.
-//-To set a returned supergroup as a discussion group, access to its old messages must be enabled using toggleSupergroupIsAllHistoryAvailable first
-getSuitableDiscussionChats = Chats;
-
-//@description Returns a list of recently inactive supergroups and channels. Can be used when user reaches limit on the number of joined supergroups and channels and receives CHANNELS_TOO_MUCH error. Also, the limit can be increased with Telegram Premium
-getInactiveSupergroupChats = Chats;
-
-//@description Returns a list of channel chats, which can be used as a personal chat
-getSuitablePersonalChats = Chats;
-
-
-//@description Loads more Saved Messages topics. The loaded topics will be sent through updateSavedMessagesTopic. Topics are sorted by their topic.order in descending order. Returns a 404 error if all topics have been loaded
-//@limit The maximum number of topics to be loaded. For optimal performance, the number of loaded topics is chosen by TDLib and can be smaller than the specified limit, even if the end of the list is not reached
-loadSavedMessagesTopics limit:int32 = Ok;
-
-//@description Returns messages in a Saved Messages topic. The messages are returned in reverse chronological order (i.e., in order of decreasing message_id)
-//@saved_messages_topic_id Identifier of Saved Messages topic which messages will be fetched
-//@from_message_id Identifier of the message starting from which messages must be fetched; use 0 to get results from the last message
-//@offset Specify 0 to get results from exactly the message from_message_id or a negative offset up to 99 to get additionally some newer messages
-//@limit The maximum number of messages to be returned; must be positive and can't be greater than 100. If the offset is negative, the limit must be greater than or equal to -offset.
-//-For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-getSavedMessagesTopicHistory saved_messages_topic_id:int53 from_message_id:int53 offset:int32 limit:int32 = Messages;
-
-//@description Returns the last message sent in a Saved Messages topic no later than the specified date
-//@saved_messages_topic_id Identifier of Saved Messages topic which message will be returned
-//@date Point in time (Unix timestamp) relative to which to search for messages
-getSavedMessagesTopicMessageByDate saved_messages_topic_id:int53 date:int32 = Message;
-
-//@description Deletes all messages in a Saved Messages topic @saved_messages_topic_id Identifier of Saved Messages topic which messages will be deleted
-deleteSavedMessagesTopicHistory saved_messages_topic_id:int53 = Ok;
-
-//@description Deletes all messages between the specified dates in a Saved Messages topic. Messages sent in the last 30 seconds will not be deleted
-//@saved_messages_topic_id Identifier of Saved Messages topic which messages will be deleted
-//@min_date The minimum date of the messages to delete
-//@max_date The maximum date of the messages to delete
-deleteSavedMessagesTopicMessagesByDate saved_messages_topic_id:int53 min_date:int32 max_date:int32 = Ok;
-
-//@description Changes the pinned state of a Saved Messages topic. There can be up to getOption("pinned_saved_messages_topic_count_max") pinned topics. The limit can be increased with Telegram Premium
-//@saved_messages_topic_id Identifier of Saved Messages topic to pin or unpin
-//@is_pinned Pass true to pin the topic; pass false to unpin it
-toggleSavedMessagesTopicIsPinned saved_messages_topic_id:int53 is_pinned:Bool = Ok;
-
-//@description Changes the order of pinned Saved Messages topics @saved_messages_topic_ids Identifiers of the new pinned Saved Messages topics
-setPinnedSavedMessagesTopics saved_messages_topic_ids:vector<int53> = Ok;
-
-
-//@description Returns a list of common group chats with a given user. Chats are sorted by their type and creation date
-//@user_id User identifier
-//@offset_chat_id Chat identifier starting from which to return chats; use 0 for the first request
-//@limit The maximum number of chats to be returned; up to 100
-getGroupsInCommon user_id:int53 offset_chat_id:int53 limit:int32 = Chats;
-
-
-//@description Returns messages in a chat. The messages are returned in reverse chronological order (i.e., in order of decreasing message_id).
-//-For optimal performance, the number of returned messages is chosen by TDLib. This is an offline method if only_local is true
-//@chat_id Chat identifier
-//@from_message_id Identifier of the message starting from which history must be fetched; use 0 to get results from the last message
-//@offset Specify 0 to get results from exactly the message from_message_id or a negative offset up to 99 to get additionally some newer messages
-//@limit The maximum number of messages to be returned; must be positive and can't be greater than 100. If the offset is negative, the limit must be greater than or equal to -offset.
-//-For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-//@only_local Pass true to get only messages that are available without sending network requests
-getChatHistory chat_id:int53 from_message_id:int53 offset:int32 limit:int32 only_local:Bool = Messages;
-
-//@description Returns messages in a message thread of a message. Can be used only if messageProperties.can_get_message_thread == true. Message thread of a channel message is in the channel's linked supergroup.
-//-The messages are returned in reverse chronological order (i.e., in order of decreasing message_id). For optimal performance, the number of returned messages is chosen by TDLib
-//@chat_id Chat identifier
-//@message_id Message identifier, which thread history needs to be returned
-//@from_message_id Identifier of the message starting from which history must be fetched; use 0 to get results from the last message
-//@offset Specify 0 to get results from exactly the message from_message_id or a negative offset up to 99 to get additionally some newer messages
-//@limit The maximum number of messages to be returned; must be positive and can't be greater than 100. If the offset is negative, the limit must be greater than or equal to -offset.
-//-For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-getMessageThreadHistory chat_id:int53 message_id:int53 from_message_id:int53 offset:int32 limit:int32 = Messages;
-
-//@description Deletes all messages in the chat. Use chat.can_be_deleted_only_for_self and chat.can_be_deleted_for_all_users fields to find whether and how the method can be applied to the chat
-//@chat_id Chat identifier
-//@remove_from_chat_list Pass true to remove the chat from all chat lists
-//@revoke Pass true to delete chat history for all users
-deleteChatHistory chat_id:int53 remove_from_chat_list:Bool revoke:Bool = Ok;
-
-//@description Deletes a chat along with all messages in the corresponding chat for all chat members. For group chats this will release the usernames and remove all members.
-//-Use the field chat.can_be_deleted_for_all_users to find whether the method can be applied to the chat
-//@chat_id Chat identifier
-deleteChat chat_id:int53 = Ok;
-
-//@description Searches for messages with given words in the chat. Returns the results in reverse chronological order, i.e. in order of decreasing message_id. Cannot be used in secret chats with a non-empty query
-//-(searchSecretMessages must be used instead), or without an enabled message database. For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit.
-//-A combination of query, sender_id, filter and message_thread_id search criteria is expected to be supported, only if it is required for Telegram official application implementation
-//@chat_id Identifier of the chat in which to search messages
-//@query Query to search for
-//@sender_id Identifier of the sender of messages to search for; pass null to search for messages from any sender. Not supported in secret chats
-//@from_message_id Identifier of the message starting from which history must be fetched; use 0 to get results from the last message
-//@offset Specify 0 to get results from exactly the message from_message_id or a negative offset to get the specified message and some newer messages
-//@limit The maximum number of messages to be returned; must be positive and can't be greater than 100. If the offset is negative, the limit must be greater than -offset.
-//-For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-//@filter Additional filter for messages to search; pass null to search for all messages
-//@message_thread_id If not 0, only messages in the specified thread will be returned; supergroups only
-//@saved_messages_topic_id If not 0, only messages in the specified Saved Messages topic will be returned; pass 0 to return all messages, or for chats other than Saved Messages
-searchChatMessages chat_id:int53 query:string sender_id:MessageSender from_message_id:int53 offset:int32 limit:int32 filter:SearchMessagesFilter message_thread_id:int53 saved_messages_topic_id:int53 = FoundChatMessages;
-
-//@description Searches for messages in all chats except secret chats. Returns the results in reverse chronological order (i.e., in order of decreasing (date, chat_id, message_id)).
-//-For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-//@chat_list Chat list in which to search messages; pass null to search in all chats regardless of their chat list. Only Main and Archive chat lists are supported
-//@query Query to search for
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of messages to be returned; up to 100. For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-//@filter Additional filter for messages to search; pass null to search for all messages. Filters searchMessagesFilterMention, searchMessagesFilterUnreadMention, searchMessagesFilterUnreadReaction, searchMessagesFilterFailedToSend, and searchMessagesFilterPinned are unsupported in this function
-//@chat_type_filter Additional filter for type of the chat of the searched messages; pass null to search for messages in all chats
-//@min_date If not 0, the minimum date of the messages to return
-//@max_date If not 0, the maximum date of the messages to return
-searchMessages chat_list:ChatList query:string offset:string limit:int32 filter:SearchMessagesFilter chat_type_filter:SearchMessagesChatTypeFilter min_date:int32 max_date:int32 = FoundMessages;
-
-//@description Searches for messages in secret chats. Returns the results in reverse chronological order. For optimal performance, the number of returned messages is chosen by TDLib
-//@chat_id Identifier of the chat in which to search. Specify 0 to search in all secret chats
-//@query Query to search for. If empty, searchChatMessages must be used instead
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of messages to be returned; up to 100. For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-//@filter Additional filter for messages to search; pass null to search for all messages
-searchSecretMessages chat_id:int53 query:string offset:string limit:int32 filter:SearchMessagesFilter = FoundMessages;
-
-//@description Searches for messages tagged by the given reaction and with the given words in the Saved Messages chat; for Telegram Premium users only.
-//-Returns the results in reverse chronological order, i.e. in order of decreasing message_id.
-//-For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-//@saved_messages_topic_id If not 0, only messages in the specified Saved Messages topic will be considered; pass 0 to consider all messages
-//@tag Tag to search for; pass null to return all suitable messages
-//@query Query to search for
-//@from_message_id Identifier of the message starting from which messages must be fetched; use 0 to get results from the last message
-//@offset Specify 0 to get results from exactly the message from_message_id or a negative offset to get the specified message and some newer messages
-//@limit The maximum number of messages to be returned; must be positive and can't be greater than 100. If the offset is negative, the limit must be greater than -offset.
-//-For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-searchSavedMessages saved_messages_topic_id:int53 tag:ReactionType query:string from_message_id:int53 offset:int32 limit:int32 = FoundChatMessages;
-
-//@description Searches for call messages. Returns the results in reverse chronological order (i.e., in order of decreasing message_id). For optimal performance, the number of returned messages is chosen by TDLib
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of messages to be returned; up to 100. For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-//@only_missed Pass true to search only for messages with missed/declined calls
-searchCallMessages offset:string limit:int32 only_missed:Bool = FoundMessages;
-
-//@description Searches for outgoing messages with content of the type messageDocument in all chats except secret chats. Returns the results in reverse chronological order
-//@query Query to search for in document file name and message caption
-//@limit The maximum number of messages to be returned; up to 100
-searchOutgoingDocumentMessages query:string limit:int32 = FoundMessages;
-
-//@description Searches for public channel posts containing the given hashtag or cashtag. For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-//@tag Hashtag or cashtag to search for
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of messages to be returned; up to 100. For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
-searchPublicMessagesByTag tag:string offset:string limit:int32 = FoundMessages;
-
-//@description Searches for public stories containing the given hashtag or cashtag. For optimal performance, the number of returned stories is chosen by TDLib and can be smaller than the specified limit
-//@story_sender_chat_id Identifier of the chat that posted the stories to search for; pass 0 to search stories in all chats
-//@tag Hashtag or cashtag to search for
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of stories to be returned; up to 100. For optimal performance, the number of returned stories is chosen by TDLib and can be smaller than the specified limit
-searchPublicStoriesByTag story_sender_chat_id:int53 tag:string offset:string limit:int32 = FoundStories;
-
-//@description Searches for public stories by the given address location. For optimal performance, the number of returned stories is chosen by TDLib and can be smaller than the specified limit
-//@address Address of the location
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of stories to be returned; up to 100. For optimal performance, the number of returned stories is chosen by TDLib and can be smaller than the specified limit
-searchPublicStoriesByLocation address:locationAddress offset:string limit:int32 = FoundStories;
-
-//@description Searches for public stories from the given venue. For optimal performance, the number of returned stories is chosen by TDLib and can be smaller than the specified limit
-//@venue_provider Provider of the venue
-//@venue_id Identifier of the venue in the provider database
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of stories to be returned; up to 100. For optimal performance, the number of returned stories is chosen by TDLib and can be smaller than the specified limit
-searchPublicStoriesByVenue venue_provider:string venue_id:string offset:string limit:int32 = FoundStories;
-
-//@description Returns recently searched for hashtags or cashtags by their prefix @tag_prefix Prefix of hashtags or cashtags to return @limit The maximum number of items to be returned
-getSearchedForTags tag_prefix:string limit:int32 = Hashtags;
-
-//@description Removes a hashtag or a cashtag from the list of recently searched for hashtags or cashtags @tag Hashtag or cashtag to delete
-removeSearchedForTag tag:string = Ok;
-
-//@description Clears the list of recently searched for hashtags or cashtags @clear_cashtags Pass true to clear the list of recently searched for cashtags; otherwise, the list of recently searched for hashtags will be cleared
-clearSearchedForTags clear_cashtags:Bool = Ok;
-
-//@description Deletes all call messages @revoke Pass true to delete the messages for all users
-deleteAllCallMessages revoke:Bool = Ok;
-
-//@description Returns information about the recent locations of chat members that were sent to the chat. Returns up to 1 location message per user @chat_id Chat identifier @limit The maximum number of messages to be returned
-searchChatRecentLocationMessages chat_id:int53 limit:int32 = Messages;
-
-//@description Returns the last message sent in a chat no later than the specified date. Returns a 404 error if such message doesn't exist
-//@chat_id Chat identifier
-//@date Point in time (Unix timestamp) relative to which to search for messages
-getChatMessageByDate chat_id:int53 date:int32 = Message;
-
-//@description Returns sparse positions of messages of the specified type in the chat to be used for shared media scroll implementation. Returns the results in reverse chronological order (i.e., in order of decreasing message_id).
-//-Cannot be used in secret chats or with searchMessagesFilterFailedToSend filter without an enabled message database
-//@chat_id Identifier of the chat in which to return information about message positions
-//@filter Filter for message content. Filters searchMessagesFilterEmpty, searchMessagesFilterMention, searchMessagesFilterUnreadMention, and searchMessagesFilterUnreadReaction are unsupported in this function
-//@from_message_id The message identifier from which to return information about message positions
-//@limit The expected number of message positions to be returned; 50-2000. A smaller number of positions can be returned, if there are not enough appropriate messages
-//@saved_messages_topic_id If not 0, only messages in the specified Saved Messages topic will be considered; pass 0 to consider all messages, or for chats other than Saved Messages
-getChatSparseMessagePositions chat_id:int53 filter:SearchMessagesFilter from_message_id:int53 limit:int32 saved_messages_topic_id:int53 = MessagePositions;
-
-//@description Returns information about the next messages of the specified type in the chat split by days. Returns the results in reverse chronological order. Can return partial result for the last returned day. Behavior of this method depends on the value of the option "utc_time_offset"
-//@chat_id Identifier of the chat in which to return information about messages
-//@filter Filter for message content. Filters searchMessagesFilterEmpty, searchMessagesFilterMention, searchMessagesFilterUnreadMention, and searchMessagesFilterUnreadReaction are unsupported in this function
-//@from_message_id The message identifier from which to return information about messages; use 0 to get results from the last message
-//@saved_messages_topic_id If not0, only messages in the specified Saved Messages topic will be considered; pass 0 to consider all messages, or for chats other than Saved Messages
-getChatMessageCalendar chat_id:int53 filter:SearchMessagesFilter from_message_id:int53 saved_messages_topic_id:int53 = MessageCalendar;
-
-//@description Returns approximate number of messages of the specified type in the chat
-//@chat_id Identifier of the chat in which to count messages
-//@filter Filter for message content; searchMessagesFilterEmpty is unsupported in this function
-//@saved_messages_topic_id If not 0, only messages in the specified Saved Messages topic will be counted; pass 0 to count all messages, or for chats other than Saved Messages
-//@return_local Pass true to get the number of messages without sending network requests, or -1 if the number of messages is unknown locally
-getChatMessageCount chat_id:int53 filter:SearchMessagesFilter saved_messages_topic_id:int53 return_local:Bool = Count;
-
-//@description Returns approximate 1-based position of a message among messages, which can be found by the specified filter in the chat. Cannot be used in secret chats
-//@chat_id Identifier of the chat in which to find message position
-//@message_id Message identifier
-//@filter Filter for message content; searchMessagesFilterEmpty, searchMessagesFilterUnreadMention, searchMessagesFilterUnreadReaction, and searchMessagesFilterFailedToSend are unsupported in this function
-//@message_thread_id If not 0, only messages in the specified thread will be considered; supergroups only
-//@saved_messages_topic_id If not 0, only messages in the specified Saved Messages topic will be considered; pass 0 to consider all relevant messages, or for chats other than Saved Messages
-getChatMessagePosition chat_id:int53 message_id:int53 filter:SearchMessagesFilter message_thread_id:int53 saved_messages_topic_id:int53 = Count;
-
-//@description Returns all scheduled messages in a chat. The messages are returned in reverse chronological order (i.e., in order of decreasing message_id) @chat_id Chat identifier
-getChatScheduledMessages chat_id:int53 = Messages;
-
-//@description Returns sponsored messages to be shown in a chat; for channel chats and chats with bots only @chat_id Identifier of the chat
-getChatSponsoredMessages chat_id:int53 = SponsoredMessages;
-
-//@description Informs TDLib that the user opened the sponsored chat via the button, the name, the chat photo, a mention in the sponsored message text, or the media in the sponsored message
-//@chat_id Chat identifier of the sponsored message
-//@message_id Identifier of the sponsored message
-//@is_media_click Pass true if the media was clicked in the sponsored message
-//@from_fullscreen Pass true if the user expanded the video from the sponsored message fullscreen before the click
-clickChatSponsoredMessage chat_id:int53 message_id:int53 is_media_click:Bool from_fullscreen:Bool = Ok;
-
-//@description Reports a sponsored message to Telegram moderators
-//@chat_id Chat identifier of the sponsored message
-//@message_id Identifier of the sponsored message
-//@option_id Option identifier chosen by the user; leave empty for the initial request
-reportChatSponsoredMessage chat_id:int53 message_id:int53 option_id:bytes = ReportSponsoredResult;
-
-//@description Returns sponsored chats to be shown in the search results @query Query the user searches for
-getSearchSponsoredChats query:string = SponsoredChats;
-
-//@description Informs TDLib that the user fully viewed a sponsored chat @sponsored_chat_unique_id Unique identifier of the sponsored chat
-viewSponsoredChat sponsored_chat_unique_id:int53 = Ok;
-
-//@description Informs TDLib that the user opened a sponsored chat @sponsored_chat_unique_id Unique identifier of the sponsored chat
-openSponsoredChat sponsored_chat_unique_id:int53 = Ok;
-
-//@description Reports a sponsored chat to Telegram moderators
-//@sponsored_chat_unique_id Unique identifier of the sponsored chat
-//@option_id Option identifier chosen by the user; leave empty for the initial request
-reportSponsoredChat sponsored_chat_unique_id:int53 option_id:bytes = ReportSponsoredResult;
-
-
-//@description Removes an active notification from notification list. Needs to be called only if the notification is removed by the current user @notification_group_id Identifier of notification group to which the notification belongs @notification_id Identifier of removed notification
-removeNotification notification_group_id:int32 notification_id:int32 = Ok;
-
-//@description Removes a group of active notifications. Needs to be called only if the notification group is removed by the current user @notification_group_id Notification group identifier @max_notification_id The maximum identifier of removed notifications
-removeNotificationGroup notification_group_id:int32 max_notification_id:int32 = Ok;
-
-
-//@description Returns an HTTPS link to a message in a chat. Available only if messageProperties.can_get_link, or if messageProperties.can_get_media_timestamp_links and a media timestamp link is generated. This is an offline method
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@media_timestamp If not 0, timestamp from which the video/audio/video note/voice note/story playing must start, in seconds. The media can be in the message content or in its link preview
-//@for_album Pass true to create a link for the whole media album
-//@in_message_thread Pass true to create a link to the message as a channel post comment, in a message thread, or a forum topic
-getMessageLink chat_id:int53 message_id:int53 media_timestamp:int32 for_album:Bool in_message_thread:Bool = MessageLink;
-
-//@description Returns an HTML code for embedding the message. Available only if messageProperties.can_get_embedding_code
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@for_album Pass true to return an HTML code for embedding of the whole media album
-getMessageEmbeddingCode chat_id:int53 message_id:int53 for_album:Bool = Text;
-
-//@description Returns information about a public or private message link. Can be called for any internal link of the type internalLinkTypeMessage @url The message link
-getMessageLinkInfo url:string = MessageLinkInfo;
-
-
-//@description Translates a text to the given language. If the current user is a Telegram Premium user, then text formatting is preserved
-//@text Text to translate
-//@to_language_code Language code of the language to which the message is translated. Must be one of
-//-"af", "sq", "am", "ar", "hy", "az", "eu", "be", "bn", "bs", "bg", "ca", "ceb", "zh-CN", "zh", "zh-Hans", "zh-TW", "zh-Hant", "co", "hr", "cs", "da", "nl", "en", "eo", "et",
-//-"fi", "fr", "fy", "gl", "ka", "de", "el", "gu", "ht", "ha", "haw", "he", "iw", "hi", "hmn", "hu", "is", "ig", "id", "in", "ga", "it", "ja", "jv", "kn", "kk", "km", "rw", "ko",
-//-"ku", "ky", "lo", "la", "lv", "lt", "lb", "mk", "mg", "ms", "ml", "mt", "mi", "mr", "mn", "my", "ne", "no", "ny", "or", "ps", "fa", "pl", "pt", "pa", "ro", "ru", "sm", "gd", "sr",
-//-"st", "sn", "sd", "si", "sk", "sl", "so", "es", "su", "sw", "sv", "tl", "tg", "ta", "tt", "te", "th", "tr", "tk", "uk", "ur", "ug", "uz", "vi", "cy", "xh", "yi", "ji", "yo", "zu"
-translateText text:formattedText to_language_code:string = FormattedText;
-
-//@description Extracts text or caption of the given message and translates it to the given language. If the current user is a Telegram Premium user, then text formatting is preserved
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@to_language_code Language code of the language to which the message is translated. Must be one of
-//-"af", "sq", "am", "ar", "hy", "az", "eu", "be", "bn", "bs", "bg", "ca", "ceb", "zh-CN", "zh", "zh-Hans", "zh-TW", "zh-Hant", "co", "hr", "cs", "da", "nl", "en", "eo", "et",
-//-"fi", "fr", "fy", "gl", "ka", "de", "el", "gu", "ht", "ha", "haw", "he", "iw", "hi", "hmn", "hu", "is", "ig", "id", "in", "ga", "it", "ja", "jv", "kn", "kk", "km", "rw", "ko",
-//-"ku", "ky", "lo", "la", "lv", "lt", "lb", "mk", "mg", "ms", "ml", "mt", "mi", "mr", "mn", "my", "ne", "no", "ny", "or", "ps", "fa", "pl", "pt", "pa", "ro", "ru", "sm", "gd", "sr",
-//-"st", "sn", "sd", "si", "sk", "sl", "so", "es", "su", "sw", "sv", "tl", "tg", "ta", "tt", "te", "th", "tr", "tk", "uk", "ur", "ug", "uz", "vi", "cy", "xh", "yi", "ji", "yo", "zu"
-translateMessageText chat_id:int53 message_id:int53 to_language_code:string = FormattedText;
-
-//@description Recognizes speech in a video note or a voice note message
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message. Use messageProperties.can_recognize_speech to check whether the message is suitable
-recognizeSpeech chat_id:int53 message_id:int53 = Ok;
-
-//@description Rates recognized speech in a video note or a voice note message @chat_id Identifier of the chat to which the message belongs @message_id Identifier of the message @is_good Pass true if the speech recognition is good
-rateSpeechRecognition chat_id:int53 message_id:int53 is_good:Bool = Ok;
-
-
-//@description Returns the list of message sender identifiers, which can be used to send messages in a chat @chat_id Chat identifier
-getChatAvailableMessageSenders chat_id:int53 = ChatMessageSenders;
-
-//@description Selects a message sender to send messages in a chat @chat_id Chat identifier @message_sender_id New message sender for the chat
-setChatMessageSender chat_id:int53 message_sender_id:MessageSender = Ok;
-
-//@description Sends a message. Returns the sent message
-//@chat_id Target chat
-//@message_thread_id If not 0, the message thread identifier in which the message will be sent
-//@reply_to Information about the message or story to be replied; pass null if none
-//@options Options to be used to send the message; pass null to use default options
-//@reply_markup Markup for replying to the message; pass null if none; for bots only
-//@input_message_content The content of the message to be sent
-sendMessage chat_id:int53 message_thread_id:int53 reply_to:InputMessageReplyTo options:messageSendOptions reply_markup:ReplyMarkup input_message_content:InputMessageContent = Message;
-
-//@description Sends 2-10 messages grouped together into an album. Currently, only audio, document, photo and video messages can be grouped into an album.
-//-Documents and audio files can be only grouped in an album with messages of the same type. Returns sent messages
-//@chat_id Target chat
-//@message_thread_id If not 0, the message thread identifier in which the messages will be sent
-//@reply_to Information about the message or story to be replied; pass null if none
-//@options Options to be used to send the messages; pass null to use default options
-//@input_message_contents Contents of messages to be sent. At most 10 messages can be added to an album. All messages must have the same value of show_caption_above_media
-sendMessageAlbum chat_id:int53 message_thread_id:int53 reply_to:InputMessageReplyTo options:messageSendOptions input_message_contents:vector<InputMessageContent> = Messages;
-
-//@description Invites a bot to a chat (if it is not yet a member) and sends it the /start command; requires can_invite_users member right. Bots can't be invited to a private chat other than the chat with the bot.
-//-Bots can't be invited to channels (although they can be added as admins) and secret chats. Returns the sent message
-//@bot_user_id Identifier of the bot
-//@chat_id Identifier of the target chat
-//@parameter A hidden parameter sent to the bot for deep linking purposes (https://core.telegram.org/bots#deep-linking)
-sendBotStartMessage bot_user_id:int53 chat_id:int53 parameter:string = Message;
-
-//@description Sends the result of an inline query as a message. Returns the sent message. Always clears a chat draft message
-//@chat_id Target chat
-//@message_thread_id If not 0, the message thread identifier in which the message will be sent
-//@reply_to Information about the message or story to be replied; pass null if none
-//@options Options to be used to send the message; pass null to use default options
-//@query_id Identifier of the inline query
-//@result_id Identifier of the inline query result
-//@hide_via_bot Pass true to hide the bot, via which the message is sent. Can be used only for bots getOption("animation_search_bot_username"), getOption("photo_search_bot_username"), and getOption("venue_search_bot_username")
-sendInlineQueryResultMessage chat_id:int53 message_thread_id:int53 reply_to:InputMessageReplyTo options:messageSendOptions query_id:int64 result_id:string hide_via_bot:Bool = Message;
-
-//@description Forwards previously sent messages. Returns the forwarded messages in the same order as the message identifiers passed in message_ids. If a message can't be forwarded, null will be returned instead of the message
-//@chat_id Identifier of the chat to which to forward messages
-//@message_thread_id If not 0, the message thread identifier in which the message will be sent; for forum threads only
-//@from_chat_id Identifier of the chat from which to forward messages
-//@message_ids Identifiers of the messages to forward. Message identifiers must be in a strictly increasing order. At most 100 messages can be forwarded simultaneously. A message can be forwarded only if messageProperties.can_be_forwarded
-//@options Options to be used to send the messages; pass null to use default options
-//@send_copy Pass true to copy content of the messages without reference to the original sender. Always true if the messages are forwarded to a secret chat or are local.
-//-Use messageProperties.can_be_saved and messageProperties.can_be_copied_to_secret_chat to check whether the message is suitable
-//@remove_caption Pass true to remove media captions of message copies. Ignored if send_copy is false
-forwardMessages chat_id:int53 message_thread_id:int53 from_chat_id:int53 message_ids:vector<int53> options:messageSendOptions send_copy:Bool remove_caption:Bool = Messages;
-
-//@description Sends messages from a quick reply shortcut. Requires Telegram Business subscription. Can't be used to send paid messages
-//@chat_id Identifier of the chat to which to send messages. The chat must be a private chat with a regular user
-//@shortcut_id Unique identifier of the quick reply shortcut
-//@sending_id Non-persistent identifier, which will be returned back in messageSendingStatePending object and can be used to match sent messages and corresponding updateNewMessage updates
-sendQuickReplyShortcutMessages chat_id:int53 shortcut_id:int32 sending_id:int32 = Messages;
-
-//@description Resends messages which failed to send. Can be called only for messages for which messageSendingStateFailed.can_retry is true and after specified in messageSendingStateFailed.retry_after time passed.
-//-If a message is re-sent, the corresponding failed to send message is deleted. Returns the sent messages in the same order as the message identifiers passed in message_ids. If a message can't be re-sent, null will be returned instead of the message
-//@chat_id Identifier of the chat to send messages
-//@message_ids Identifiers of the messages to resend. Message identifiers must be in a strictly increasing order
-//@quote New manually chosen quote from the message to be replied; pass null if none. Ignored if more than one message is re-sent, or if messageSendingStateFailed.need_another_reply_quote == false
-//@paid_message_star_count The number of Telegram Stars the user agreed to pay to send the messages. Ignored if messageSendingStateFailed.required_paid_message_star_count == 0
-resendMessages chat_id:int53 message_ids:vector<int53> quote:inputTextQuote paid_message_star_count:int53 = Messages;
-
-//@description Adds a local message to a chat. The message is persistent across application restarts only if the message database is used. Returns the added message
-//@chat_id Target chat
-//@sender_id Identifier of the sender of the message
-//@reply_to Information about the message or story to be replied; pass null if none
-//@disable_notification Pass true to disable notification for the message
-//@input_message_content The content of the message to be added
-addLocalMessage chat_id:int53 sender_id:MessageSender reply_to:InputMessageReplyTo disable_notification:Bool input_message_content:InputMessageContent = Message;
-
-//@description Deletes messages
-//@chat_id Chat identifier
-//@message_ids Identifiers of the messages to be deleted. Use messageProperties.can_be_deleted_only_for_self and messageProperties.can_be_deleted_for_all_users to get suitable messages
-//@revoke Pass true to delete messages for all chat members. Always true for supergroups, channels and secret chats
-deleteMessages chat_id:int53 message_ids:vector<int53> revoke:Bool = Ok;
-
-//@description Deletes all messages sent by the specified message sender in a chat. Supported only for supergroups; requires can_delete_messages administrator right @chat_id Chat identifier @sender_id Identifier of the sender of messages to delete
-deleteChatMessagesBySender chat_id:int53 sender_id:MessageSender = Ok;
-
-//@description Deletes all messages between the specified dates in a chat. Supported only for private chats and basic groups. Messages sent in the last 30 seconds will not be deleted
-//@chat_id Chat identifier
-//@min_date The minimum date of the messages to delete
-//@max_date The maximum date of the messages to delete
-//@revoke Pass true to delete chat messages for all users; private chats only
-deleteChatMessagesByDate chat_id:int53 min_date:int32 max_date:int32 revoke:Bool = Ok;
-
-
-//@description Edits the text of a message (or a text of a game message). Returns the edited message after the edit is completed on the server side
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message. Use messageProperties.can_be_edited to check whether the message can be edited
-//@reply_markup The new message reply markup; pass null if none; for bots only
-//@input_message_content New text content of the message. Must be of type inputMessageText
-editMessageText chat_id:int53 message_id:int53 reply_markup:ReplyMarkup input_message_content:InputMessageContent = Message;
-
-//@description Edits the message content of a live location. Messages can be edited for a limited period of time specified in the live location.
-//-Returns the edited message after the edit is completed on the server side
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message. Use messageProperties.can_be_edited to check whether the message can be edited
-//@reply_markup The new message reply markup; pass null if none; for bots only
-//@location New location content of the message; pass null to stop sharing the live location
-//@live_period New time relative to the message send date, for which the location can be updated, in seconds. If 0x7FFFFFFF specified, then the location can be updated forever.
-//-Otherwise, must not exceed the current live_period by more than a day, and the live location expiration date must remain in the next 90 days. Pass 0 to keep the current live_period
-//@heading The new direction in which the location moves, in degrees; 1-360. Pass 0 if unknown
-//@proximity_alert_radius The new maximum distance for proximity alerts, in meters (0-100000). Pass 0 if the notification is disabled
-editMessageLiveLocation chat_id:int53 message_id:int53 reply_markup:ReplyMarkup location:location live_period:int32 heading:int32 proximity_alert_radius:int32 = Message;
-
-//@description Edits the media content of a message, including message caption. If only the caption needs to be edited, use editMessageCaption instead.
-//-The type of message content in an album can't be changed with exception of replacing a photo with a video or vice versa. Returns the edited message after the edit is completed on the server side
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message. Use messageProperties.can_edit_media to check whether the message can be edited
-//@reply_markup The new message reply markup; pass null if none; for bots only
-//@input_message_content New content of the message. Must be one of the following types: inputMessageAnimation, inputMessageAudio, inputMessageDocument, inputMessagePhoto or inputMessageVideo
-editMessageMedia chat_id:int53 message_id:int53 reply_markup:ReplyMarkup input_message_content:InputMessageContent = Message;
-
-//@description Edits the message content caption. Returns the edited message after the edit is completed on the server side
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message. Use messageProperties.can_be_edited to check whether the message can be edited
-//@reply_markup The new message reply markup; pass null if none; for bots only
-//@caption New message content caption; 0-getOption("message_caption_length_max") characters; pass null to remove caption
-//@show_caption_above_media Pass true to show the caption above the media; otherwise, the caption will be shown below the media. May be true only for animation, photo, and video messages
-editMessageCaption chat_id:int53 message_id:int53 reply_markup:ReplyMarkup caption:formattedText show_caption_above_media:Bool = Message;
-
-//@description Edits the message reply markup; for bots only. Returns the edited message after the edit is completed on the server side
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message. Use messageProperties.can_be_edited to check whether the message can be edited
-//@reply_markup The new message reply markup; pass null if none
-editMessageReplyMarkup chat_id:int53 message_id:int53 reply_markup:ReplyMarkup = Message;
-
-//@description Edits the text of an inline text or game message sent via a bot; for bots only
-//@inline_message_id Inline message identifier
-//@reply_markup The new message reply markup; pass null if none
-//@input_message_content New text content of the message. Must be of type inputMessageText
-editInlineMessageText inline_message_id:string reply_markup:ReplyMarkup input_message_content:InputMessageContent = Ok;
-
-//@description Edits the content of a live location in an inline message sent via a bot; for bots only
-//@inline_message_id Inline message identifier
-//@reply_markup The new message reply markup; pass null if none
-//@location New location content of the message; pass null to stop sharing the live location
-//@live_period New time relative to the message send date, for which the location can be updated, in seconds. If 0x7FFFFFFF specified, then the location can be updated forever.
-//-Otherwise, must not exceed the current live_period by more than a day, and the live location expiration date must remain in the next 90 days. Pass 0 to keep the current live_period
-//@heading The new direction in which the location moves, in degrees; 1-360. Pass 0 if unknown
-//@proximity_alert_radius The new maximum distance for proximity alerts, in meters (0-100000). Pass 0 if the notification is disabled
-editInlineMessageLiveLocation inline_message_id:string reply_markup:ReplyMarkup location:location live_period:int32 heading:int32 proximity_alert_radius:int32 = Ok;
-
-//@description Edits the media content of a message with a text, an animation, an audio, a document, a photo or a video in an inline message sent via a bot; for bots only
-//@inline_message_id Inline message identifier
-//@reply_markup The new message reply markup; pass null if none; for bots only
-//@input_message_content New content of the message. Must be one of the following types: inputMessageAnimation, inputMessageAudio, inputMessageDocument, inputMessagePhoto or inputMessageVideo
-editInlineMessageMedia inline_message_id:string reply_markup:ReplyMarkup input_message_content:InputMessageContent = Ok;
-
-//@description Edits the caption of an inline message sent via a bot; for bots only
-//@inline_message_id Inline message identifier
-//@reply_markup The new message reply markup; pass null if none
-//@caption New message content caption; pass null to remove caption; 0-getOption("message_caption_length_max") characters
-//@show_caption_above_media Pass true to show the caption above the media; otherwise, the caption will be shown below the media. May be true only for animation, photo, and video messages
-editInlineMessageCaption inline_message_id:string reply_markup:ReplyMarkup caption:formattedText show_caption_above_media:Bool = Ok;
-
-//@description Edits the reply markup of an inline message sent via a bot; for bots only
-//@inline_message_id Inline message identifier
-//@reply_markup The new message reply markup; pass null if none
-editInlineMessageReplyMarkup inline_message_id:string reply_markup:ReplyMarkup = Ok;
-
-//@description Edits the time when a scheduled message will be sent. Scheduling state of all messages in the same album or forwarded together with the message will be also changed
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message. Use messageProperties.can_edit_scheduling_state to check whether the message is suitable
-//@scheduling_state The new message scheduling state; pass null to send the message immediately. Must be null for messages in the state messageSchedulingStateSendWhenVideoProcessed
-editMessageSchedulingState chat_id:int53 message_id:int53 scheduling_state:MessageSchedulingState = Ok;
-
-
-//@description Changes the fact-check of a message. Can be only used if messageProperties.can_set_fact_check == true
-//@chat_id The channel chat the message belongs to
-//@message_id Identifier of the message
-//@text New text of the fact-check; 0-getOption("fact_check_length_max") characters; pass null to remove it. Only Bold, Italic, and TextUrl entities with https://t.me/ links are supported
-setMessageFactCheck chat_id:int53 message_id:int53 text:formattedText = Ok;
-
-
-//@description Sends a message on behalf of a business account; for bots only. Returns the message after it was sent
-//@business_connection_id Unique identifier of business connection on behalf of which to send the request
-//@chat_id Target chat
-//@reply_to Information about the message to be replied; pass null if none
-//@disable_notification Pass true to disable notification for the message
-//@protect_content Pass true if the content of the message must be protected from forwarding and saving
-//@effect_id Identifier of the effect to apply to the message
-//@reply_markup Markup for replying to the message; pass null if none
-//@input_message_content The content of the message to be sent
-sendBusinessMessage business_connection_id:string chat_id:int53 reply_to:InputMessageReplyTo disable_notification:Bool protect_content:Bool effect_id:int64 reply_markup:ReplyMarkup input_message_content:InputMessageContent = BusinessMessage;
-
-//@description Sends 2-10 messages grouped together into an album on behalf of a business account; for bots only. Currently, only audio, document, photo and video messages can be grouped into an album.
-//-Documents and audio files can be only grouped in an album with messages of the same type. Returns sent messages
-//@business_connection_id Unique identifier of business connection on behalf of which to send the request
-//@chat_id Target chat
-//@reply_to Information about the message to be replied; pass null if none
-//@disable_notification Pass true to disable notification for the message
-//@protect_content Pass true if the content of the message must be protected from forwarding and saving
-//@effect_id Identifier of the effect to apply to the message
-//@input_message_contents Contents of messages to be sent. At most 10 messages can be added to an album. All messages must have the same value of show_caption_above_media
-sendBusinessMessageAlbum business_connection_id:string chat_id:int53 reply_to:InputMessageReplyTo disable_notification:Bool protect_content:Bool effect_id:int64 input_message_contents:vector<InputMessageContent> = BusinessMessages;
-
-//@description Edits the text of a text or game message sent on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection on behalf of which the message was sent
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message
-//@reply_markup The new message reply markup; pass null if none
-//@input_message_content New text content of the message. Must be of type inputMessageText
-editBusinessMessageText business_connection_id:string chat_id:int53 message_id:int53 reply_markup:ReplyMarkup input_message_content:InputMessageContent = BusinessMessage;
-
-//@description Edits the content of a live location in a message sent on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection on behalf of which the message was sent
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message
-//@reply_markup The new message reply markup; pass null if none
-//@location New location content of the message; pass null to stop sharing the live location
-//@live_period New time relative to the message send date, for which the location can be updated, in seconds. If 0x7FFFFFFF specified, then the location can be updated forever.
-//-Otherwise, must not exceed the current live_period by more than a day, and the live location expiration date must remain in the next 90 days. Pass 0 to keep the current live_period
-//@heading The new direction in which the location moves, in degrees; 1-360. Pass 0 if unknown
-//@proximity_alert_radius The new maximum distance for proximity alerts, in meters (0-100000). Pass 0 if the notification is disabled
-editBusinessMessageLiveLocation business_connection_id:string chat_id:int53 message_id:int53 reply_markup:ReplyMarkup location:location live_period:int32 heading:int32 proximity_alert_radius:int32 = BusinessMessage;
-
-//@description Edits the media content of a message with a text, an animation, an audio, a document, a photo or a video in a message sent on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection on behalf of which the message was sent
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message
-//@reply_markup The new message reply markup; pass null if none; for bots only
-//@input_message_content New content of the message. Must be one of the following types: inputMessageAnimation, inputMessageAudio, inputMessageDocument, inputMessagePhoto or inputMessageVideo
-editBusinessMessageMedia business_connection_id:string chat_id:int53 message_id:int53 reply_markup:ReplyMarkup input_message_content:InputMessageContent = BusinessMessage;
-
-//@description Edits the caption of a message sent on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection on behalf of which the message was sent
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message
-//@reply_markup The new message reply markup; pass null if none
-//@caption New message content caption; pass null to remove caption; 0-getOption("message_caption_length_max") characters
-//@show_caption_above_media Pass true to show the caption above the media; otherwise, the caption will be shown below the media. May be true only for animation, photo, and video messages
-editBusinessMessageCaption business_connection_id:string chat_id:int53 message_id:int53 reply_markup:ReplyMarkup caption:formattedText show_caption_above_media:Bool = BusinessMessage;
-
-//@description Edits the reply markup of a message sent on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection on behalf of which the message was sent
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message
-//@reply_markup The new message reply markup; pass null if none
-editBusinessMessageReplyMarkup business_connection_id:string chat_id:int53 message_id:int53 reply_markup:ReplyMarkup = BusinessMessage;
-
-//@description Stops a poll sent on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection on behalf of which the message with the poll was sent
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message containing the poll
-//@reply_markup The new message reply markup; pass null if none
-stopBusinessPoll business_connection_id:string chat_id:int53 message_id:int53 reply_markup:ReplyMarkup = BusinessMessage;
-
-//@description Pins or unpins a message sent on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection on behalf of which the message was sent
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message
-//@is_pinned Pass true to pin the message, pass false to unpin it
-setBusinessMessageIsPinned business_connection_id:string chat_id:int53 message_id:int53 is_pinned:Bool = Ok;
-
-//@description Reads a message on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection through which the message was received
-//@chat_id The chat the message belongs to
-//@message_id Identifier of the message
-readBusinessMessage business_connection_id:string chat_id:int53 message_id:int53 = Ok;
-
-//@description Deletes messages on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection through which the messages were received
-//@message_ids Identifier of the messages
-deleteBusinessMessages business_connection_id:string message_ids:vector<int53> = Ok;
-
-//@description Changes a story sent by the bot on behalf of a business account; for bots only
-//@story_sender_chat_id Identifier of the chat that posted the story
-//@story_id Identifier of the story to edit
-//@content New content of the story
-//@areas New clickable rectangle areas to be shown on the story media
-//@caption New story caption
-//@privacy_settings The new privacy settings for the story
-editBusinessStory story_sender_chat_id:int53 story_id:int32 content:InputStoryContent areas:inputStoryAreas caption:formattedText privacy_settings:StoryPrivacySettings = Story;
-
-//@description Deletes a story sent by the bot on behalf of a business account; for bots only
-//@business_connection_id Unique identifier of business connection
-//@story_id Identifier of the story to delete
-deleteBusinessStory business_connection_id:string story_id:int32 = Ok;
-
-//@description Changes the first and last name of a business account; for bots only
-//@business_connection_id Unique identifier of business connection
-//@first_name The new value of the first name for the business account; 1-64 characters
-//@last_name The new value of the optional last name for the business account; 0-64 characters
-setBusinessAccountName business_connection_id:string first_name:string last_name:string = Ok;
-
-//@description Changes the bio of a business account; for bots only
-//@business_connection_id Unique identifier of business connection
-//@bio The new value of the bio; 0-getOption("bio_length_max") characters without line feeds
-setBusinessAccountBio business_connection_id:string bio:string = Ok;
-
-//@description Changes a profile photo of a business account; for bots only
-//@business_connection_id Unique identifier of business connection
-//@photo Profile photo to set; pass null to remove the photo
-//@is_public Pass true to set the public photo, which will be visible even the main photo is hidden by privacy settings
-setBusinessAccountProfilePhoto business_connection_id:string photo:InputChatPhoto is_public:Bool = Ok;
-
-//@description Changes the editable username of a business account; for bots only
-//@business_connection_id Unique identifier of business connection
-//@username The new value of the username
-setBusinessAccountUsername business_connection_id:string username:string = Ok;
-
-//@description Changes settings for gift receiving of a business account; for bots only
-//@business_connection_id Unique identifier of business connection
-//@settings The new settings
-setBusinessAccountGiftSettings business_connection_id:string settings:giftSettings = Ok;
-
-//@description Returns the amount of Telegram Stars owned by a business account; for bots only @business_connection_id Unique identifier of business connection
-getBusinessAccountStarAmount business_connection_id:string = StarAmount;
-
-//@description Transfer Telegram Stars from the business account to the business bot; for bots only
-//@business_connection_id Unique identifier of business connection
-//@star_count Number of Telegram Stars to transfer
-transferBusinessAccountStars business_connection_id:string star_count:int53 = Ok;
-
-
-//@description Checks validness of a name for a quick reply shortcut. Can be called synchronously @name The name of the shortcut; 1-32 characters
-checkQuickReplyShortcutName name:string = Ok;
-
-//@description Loads quick reply shortcuts created by the current user. The loaded data will be sent through updateQuickReplyShortcut and updateQuickReplyShortcuts
-loadQuickReplyShortcuts = Ok;
-
-//@description Changes name of a quick reply shortcut @shortcut_id Unique identifier of the quick reply shortcut @name New name for the shortcut. Use checkQuickReplyShortcutName to check its validness
-setQuickReplyShortcutName shortcut_id:int32 name:string = Ok;
-
-//@description Deletes a quick reply shortcut @shortcut_id Unique identifier of the quick reply shortcut
-deleteQuickReplyShortcut shortcut_id:int32 = Ok;
-
-//@description Changes the order of quick reply shortcuts @shortcut_ids The new order of quick reply shortcuts
-reorderQuickReplyShortcuts shortcut_ids:vector<int32> = Ok;
-
-//@description Loads quick reply messages that can be sent by a given quick reply shortcut. The loaded messages will be sent through updateQuickReplyShortcutMessages
-//@shortcut_id Unique identifier of the quick reply shortcut
-loadQuickReplyShortcutMessages shortcut_id:int32 = Ok;
-
-//@description Deletes specified quick reply messages
-//@shortcut_id Unique identifier of the quick reply shortcut to which the messages belong
-//@message_ids Unique identifiers of the messages
-deleteQuickReplyShortcutMessages shortcut_id:int32 message_ids:vector<int53> = Ok;
-
-//@description Adds a message to a quick reply shortcut. If shortcut doesn't exist and there are less than getOption("quick_reply_shortcut_count_max") shortcuts, then a new shortcut is created.
-//-The shortcut must not contain more than getOption("quick_reply_shortcut_message_count_max") messages after adding the new message. Returns the added message
-//@shortcut_name Name of the target shortcut
-//@reply_to_message_id Identifier of a quick reply message in the same shortcut to be replied; pass 0 if none
-//@input_message_content The content of the message to be added; inputMessagePoll, inputMessageForwarded and inputMessageLocation with live_period aren't supported
-addQuickReplyShortcutMessage shortcut_name:string reply_to_message_id:int53 input_message_content:InputMessageContent = QuickReplyMessage;
-
-//@description Adds a message to a quick reply shortcut via inline bot. If shortcut doesn't exist and there are less than getOption("quick_reply_shortcut_count_max") shortcuts, then a new shortcut is created.
-//-The shortcut must not contain more than getOption("quick_reply_shortcut_message_count_max") messages after adding the new message. Returns the added message
-//@shortcut_name Name of the target shortcut
-//@reply_to_message_id Identifier of a quick reply message in the same shortcut to be replied; pass 0 if none
-//@query_id Identifier of the inline query
-//@result_id Identifier of the inline query result
-//@hide_via_bot Pass true to hide the bot, via which the message is sent. Can be used only for bots getOption("animation_search_bot_username"), getOption("photo_search_bot_username"), and getOption("venue_search_bot_username")
-addQuickReplyShortcutInlineQueryResultMessage shortcut_name:string reply_to_message_id:int53 query_id:int64 result_id:string hide_via_bot:Bool = QuickReplyMessage;
-
-//@description Adds 2-10 messages grouped together into an album to a quick reply shortcut. Currently, only audio, document, photo and video messages can be grouped into an album.
-//-Documents and audio files can be only grouped in an album with messages of the same type. Returns sent messages
-//@shortcut_name Name of the target shortcut
-//@reply_to_message_id Identifier of a quick reply message in the same shortcut to be replied; pass 0 if none
-//@input_message_contents Contents of messages to be sent. At most 10 messages can be added to an album. All messages must have the same value of show_caption_above_media
-addQuickReplyShortcutMessageAlbum shortcut_name:string reply_to_message_id:int53 input_message_contents:vector<InputMessageContent> = QuickReplyMessages;
-
-//@description Readds quick reply messages which failed to add. Can be called only for messages for which messageSendingStateFailed.can_retry is true and after specified in messageSendingStateFailed.retry_after time passed.
-//-If a message is readded, the corresponding failed to send message is deleted. Returns the sent messages in the same order as the message identifiers passed in message_ids. If a message can't be readded, null will be returned instead of the message
-//@shortcut_name Name of the target shortcut
-//@message_ids Identifiers of the quick reply messages to readd. Message identifiers must be in a strictly increasing order
-readdQuickReplyShortcutMessages shortcut_name:string message_ids:vector<int53> = QuickReplyMessages;
-
-//@description Asynchronously edits the text, media or caption of a quick reply message. Use quickReplyMessage.can_be_edited to check whether a message can be edited.
-//-Media message can be edited only to a media message. The type of message content in an album can't be changed with exception of replacing a photo with a video or vice versa
-//@shortcut_id Unique identifier of the quick reply shortcut with the message
-//@message_id Identifier of the message
-//@input_message_content New content of the message. Must be one of the following types: inputMessageText, inputMessageAnimation, inputMessageAudio, inputMessageDocument, inputMessagePhoto or inputMessageVideo
-editQuickReplyMessage shortcut_id:int32 message_id:int53 input_message_content:InputMessageContent = Ok;
-
-
-//@description Returns the list of custom emoji, which can be used as forum topic icon by all users
-getForumTopicDefaultIcons = Stickers;
-
-//@description Creates a topic in a forum supergroup chat; requires can_manage_topics administrator or can_create_topics member right in the supergroup
-//@chat_id Identifier of the chat
-//@name Name of the topic; 1-128 characters
-//@icon Icon of the topic. Icon color must be one of 0x6FB9F0, 0xFFD67E, 0xCB86DB, 0x8EEE98, 0xFF93B2, or 0xFB6F5F. Telegram Premium users can use any custom emoji as topic icon, other users can use only a custom emoji returned by getForumTopicDefaultIcons
-createForumTopic chat_id:int53 name:string icon:forumTopicIcon = ForumTopicInfo;
-
-//@description Edits title and icon of a topic in a forum supergroup chat; requires can_manage_topics right in the supergroup unless the user is creator of the topic
-//@chat_id Identifier of the chat
-//@message_thread_id Message thread identifier of the forum topic
-//@name New name of the topic; 0-128 characters. If empty, the previous topic name is kept
-//@edit_icon_custom_emoji Pass true to edit the icon of the topic. Icon of the General topic can't be edited
-//@icon_custom_emoji_id Identifier of the new custom emoji for topic icon; pass 0 to remove the custom emoji. Ignored if edit_icon_custom_emoji is false. Telegram Premium users can use any custom emoji, other users can use only a custom emoji returned by getForumTopicDefaultIcons
-editForumTopic chat_id:int53 message_thread_id:int53 name:string edit_icon_custom_emoji:Bool icon_custom_emoji_id:int64 = Ok;
-
-//@description Returns information about a forum topic @chat_id Identifier of the chat @message_thread_id Message thread identifier of the forum topic
-getForumTopic chat_id:int53 message_thread_id:int53 = ForumTopic;
-
-//@description Returns an HTTPS link to a topic in a forum chat. This is an offline method @chat_id Identifier of the chat @message_thread_id Message thread identifier of the forum topic
-getForumTopicLink chat_id:int53 message_thread_id:int53 = MessageLink;
-
-//@description Returns found forum topics in a forum chat. This is a temporary method for getting information about topic list from the server
-//@chat_id Identifier of the forum chat
-//@query Query to search for in the forum topic's name
-//@offset_date The date starting from which the results need to be fetched. Use 0 or any date in the future to get results from the last topic
-//@offset_message_id The message identifier of the last message in the last found topic, or 0 for the first request
-//@offset_message_thread_id The message thread identifier of the last found topic, or 0 for the first request
-//@limit The maximum number of forum topics to be returned; up to 100. For optimal performance, the number of returned forum topics is chosen by TDLib and can be smaller than the specified limit
-getForumTopics chat_id:int53 query:string offset_date:int32 offset_message_id:int53 offset_message_thread_id:int53 limit:int32 = ForumTopics;
-
-//@description Changes the notification settings of a forum topic
-//@chat_id Chat identifier
-//@message_thread_id Message thread identifier of the forum topic
-//@notification_settings New notification settings for the forum topic. If the topic is muted for more than 366 days, it is considered to be muted forever
-setForumTopicNotificationSettings chat_id:int53 message_thread_id:int53 notification_settings:chatNotificationSettings = Ok;
-
-//@description Toggles whether a topic is closed in a forum supergroup chat; requires can_manage_topics right in the supergroup unless the user is creator of the topic
-//@chat_id Identifier of the chat
-//@message_thread_id Message thread identifier of the forum topic
-//@is_closed Pass true to close the topic; pass false to reopen it
-toggleForumTopicIsClosed chat_id:int53 message_thread_id:int53 is_closed:Bool = Ok;
-
-//@description Toggles whether a General topic is hidden in a forum supergroup chat; requires can_manage_topics right in the supergroup
-//@chat_id Identifier of the chat
-//@is_hidden Pass true to hide and close the General topic; pass false to unhide it
-toggleGeneralForumTopicIsHidden chat_id:int53 is_hidden:Bool = Ok;
-
-//@description Changes the pinned state of a forum topic; requires can_manage_topics right in the supergroup. There can be up to getOption("pinned_forum_topic_count_max") pinned forum topics
-//@chat_id Chat identifier
-//@message_thread_id Message thread identifier of the forum topic
-//@is_pinned Pass true to pin the topic; pass false to unpin it
-toggleForumTopicIsPinned chat_id:int53 message_thread_id:int53 is_pinned:Bool = Ok;
-
-//@description Changes the order of pinned forum topics; requires can_manage_topics right in the supergroup @chat_id Chat identifier @message_thread_ids The new list of pinned forum topics
-setPinnedForumTopics chat_id:int53 message_thread_ids:vector<int53> = Ok;
-
-//@description Deletes all messages in a forum topic; requires can_delete_messages administrator right in the supergroup unless the user is creator of the topic, the topic has no messages from other users and has at most 11 messages
-//@chat_id Identifier of the chat
-//@message_thread_id Message thread identifier of the forum topic
-deleteForumTopic chat_id:int53 message_thread_id:int53 = Ok;
-
-
-//@description Returns information about an emoji reaction. Returns a 404 error if the reaction is not found @emoji Text representation of the reaction
-getEmojiReaction emoji:string = EmojiReaction;
-
-//@description Returns TGS stickers with generic animations for custom emoji reactions
-getCustomEmojiReactionAnimations = Stickers;
-
-//@description Returns reactions, which can be added to a message. The list can change after updateActiveEmojiReactions, updateChatAvailableReactions for the chat, or updateMessageInteractionInfo for the message
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@row_size Number of reaction per row, 5-25
-getMessageAvailableReactions chat_id:int53 message_id:int53 row_size:int32 = AvailableReactions;
-
-//@description Clears the list of recently used reactions
-clearRecentReactions = Ok;
-
-//@description Adds a reaction or a tag to a message. Use getMessageAvailableReactions to receive the list of available reactions for the message
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@reaction_type Type of the reaction to add. Use addPendingPaidMessageReaction instead to add the paid reaction
-//@is_big Pass true if the reaction is added with a big animation
-//@update_recent_reactions Pass true if the reaction needs to be added to recent reactions; tags are never added to the list of recent reactions
-addMessageReaction chat_id:int53 message_id:int53 reaction_type:ReactionType is_big:Bool update_recent_reactions:Bool = Ok;
-
-//@description Removes a reaction from a message. A chosen reaction can always be removed
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@reaction_type Type of the reaction to remove. The paid reaction can't be removed
-removeMessageReaction chat_id:int53 message_id:int53 reaction_type:ReactionType = Ok;
-
-//@description Returns the list of message sender identifiers, which can be used to send a paid reaction in a chat @chat_id Chat identifier
-getChatAvailablePaidMessageReactionSenders chat_id:int53 = MessageSenders;
-
-//@description Adds the paid message reaction to a message. Use getMessageAvailableReactions to check whether the reaction is available for the message
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@star_count Number of Telegram Stars to be used for the reaction. The total number of pending paid reactions must not exceed getOption("paid_reaction_star_count_max")
-//@type Type of the paid reaction; pass null if the user didn't choose reaction type explicitly, for example, the reaction is set from the message bubble
-addPendingPaidMessageReaction chat_id:int53 message_id:int53 star_count:int53 type:PaidReactionType = Ok;
-
-//@description Applies all pending paid reactions on a message @chat_id Identifier of the chat to which the message belongs @message_id Identifier of the message
-commitPendingPaidMessageReactions chat_id:int53 message_id:int53 = Ok;
-
-//@description Removes all pending paid reactions on a message @chat_id Identifier of the chat to which the message belongs @message_id Identifier of the message
-removePendingPaidMessageReactions chat_id:int53 message_id:int53 = Ok;
-
-//@description Changes type of paid message reaction of the current user on a message. The message must have paid reaction added by the current user
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@type New type of the paid reaction
-setPaidMessageReactionType chat_id:int53 message_id:int53 type:PaidReactionType = Ok;
-
-//@description Sets reactions on a message; for bots only
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message
-//@reaction_types Types of the reaction to set; pass an empty list to remove the reactions
-//@is_big Pass true if the reactions are added with a big animation
-setMessageReactions chat_id:int53 message_id:int53 reaction_types:vector<ReactionType> is_big:Bool = Ok;
-
-//@description Returns reactions added for a message, along with their sender
-//@chat_id Identifier of the chat to which the message belongs
-//@message_id Identifier of the message. Use message.interaction_info.reactions.can_get_added_reactions to check whether added reactions can be received for the message
-//@reaction_type Type of the reactions to return; pass null to return all added reactions; reactionTypePaid isn't supported
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of reactions to be returned; must be positive and can't be greater than 100
-getMessageAddedReactions chat_id:int53 message_id:int53 reaction_type:ReactionType offset:string limit:int32 = AddedReactions;
-
-//@description Changes type of default reaction for the current user @reaction_type New type of the default reaction. The paid reaction can't be set as default
-setDefaultReactionType reaction_type:ReactionType = Ok;
-
-//@description Returns tags used in Saved Messages or a Saved Messages topic
-//@saved_messages_topic_id Identifier of Saved Messages topic which tags will be returned; pass 0 to get all Saved Messages tags
-getSavedMessagesTags saved_messages_topic_id:int53 = SavedMessagesTags;
-
-//@description Changes label of a Saved Messages tag; for Telegram Premium users only @tag The tag which label will be changed @label New label for the tag; 0-12 characters
-setSavedMessagesTagLabel tag:ReactionType label:string = Ok;
-
-//@description Returns information about a message effect. Returns a 404 error if the effect is not found @effect_id Unique identifier of the effect
-getMessageEffect effect_id:int64 = MessageEffect;
-
-
-//@description Searches for a given quote in a text. Returns found quote start position in UTF-16 code units. Returns a 404 error if the quote is not found. Can be called synchronously
-//@text Text in which to search for the quote
-//@quote Quote to search for
-//@quote_position Approximate quote position in UTF-16 code units
-searchQuote text:formattedText quote:formattedText quote_position:int32 = FoundPosition;
-
-//@description Returns all entities (mentions, hashtags, cashtags, bot commands, bank card numbers, URLs, and email addresses) found in the text. Can be called synchronously @text The text in which to look for entities
-getTextEntities text:string = TextEntities;
-
-//@description Parses Bold, Italic, Underline, Strikethrough, Spoiler, CustomEmoji, BlockQuote, ExpandableBlockQuote, Code, Pre, PreCode, TextUrl
-//-and MentionName entities from a marked-up text. Can be called synchronously
-//@text The text to parse
-//@parse_mode Text parse mode
-parseTextEntities text:string parse_mode:TextParseMode = FormattedText;
-
-//@description Parses Markdown entities in a human-friendly format, ignoring markup errors. Can be called synchronously
-//@text The text to parse. For example, "__italic__ ~~strikethrough~~ ||spoiler|| **bold** `code` ```pre``` __[italic__ text_url](telegram.org) __italic**bold italic__bold**"
-parseMarkdown text:formattedText = FormattedText;
-
-//@description Replaces text entities with Markdown formatting in a human-friendly format. Entities that can't be represented in Markdown unambiguously are kept as is. Can be called synchronously @text The text
-getMarkdownText text:formattedText = FormattedText;
-
-//@description Returns an emoji for the given country. Returns an empty string on failure. Can be called synchronously @country_code A two-letter ISO 3166-1 alpha-2 country code as received from getCountries
-getCountryFlagEmoji country_code:string = Text;
-
-//@description Returns the MIME type of a file, guessed by its extension. Returns an empty string on failure. Can be called synchronously @file_name The name of the file or path to the file
-getFileMimeType file_name:string = Text;
-
-//@description Returns the extension of a file, guessed by its MIME type. Returns an empty string on failure. Can be called synchronously @mime_type The MIME type of the file
-getFileExtension mime_type:string = Text;
-
-//@description Removes potentially dangerous characters from the name of a file. Returns an empty string on failure. Can be called synchronously @file_name File name or path to the file
-cleanFileName file_name:string = Text;
-
-//@description Returns a string stored in the local database from the specified localization target and language pack by its key. Returns a 404 error if the string is not found. Can be called synchronously
-//@language_pack_database_path Path to the language pack database in which strings are stored
-//@localization_target Localization target to which the language pack belongs
-//@language_pack_id Language pack identifier
-//@key Language pack key of the string to be returned
-getLanguagePackString language_pack_database_path:string localization_target:string language_pack_id:string key:string = LanguagePackStringValue;
-
-//@description Converts a JSON-serialized string to corresponding JsonValue object. Can be called synchronously @json The JSON-serialized string
-getJsonValue json:string = JsonValue;
-
-//@description Converts a JsonValue object to corresponding JSON-serialized string. Can be called synchronously @json_value The JsonValue object
-getJsonString json_value:JsonValue = Text;
-
-//@description Converts a themeParameters object to corresponding JSON-serialized string. Can be called synchronously @theme Theme parameters to convert to JSON
-getThemeParametersJsonString theme:themeParameters = Text;
-
-
-//@description Changes the user answer to a poll. A poll in quiz mode can be answered only once
-//@chat_id Identifier of the chat to which the poll belongs
-//@message_id Identifier of the message containing the poll
-//@option_ids 0-based identifiers of answer options, chosen by the user. User can choose more than 1 answer option only is the poll allows multiple answers
-setPollAnswer chat_id:int53 message_id:int53 option_ids:vector<int32> = Ok;
-
-//@description Returns message senders voted for the specified option in a non-anonymous polls. For optimal performance, the number of returned users is chosen by TDLib
-//@chat_id Identifier of the chat to which the poll belongs
-//@message_id Identifier of the message containing the poll
-//@option_id 0-based identifier of the answer option
-//@offset Number of voters to skip in the result; must be non-negative
-//@limit The maximum number of voters to be returned; must be positive and can't be greater than 50. For optimal performance, the number of returned voters is chosen by TDLib and can be smaller than the specified limit, even if the end of the voter list has not been reached
-getPollVoters chat_id:int53 message_id:int53 option_id:int32 offset:int32 limit:int32 = MessageSenders;
-
-//@description Stops a poll
-//@chat_id Identifier of the chat to which the poll belongs
-//@message_id Identifier of the message containing the poll. Use messageProperties.can_be_edited to check whether the poll can be stopped
-//@reply_markup The new message reply markup; pass null if none; for bots only
-stopPoll chat_id:int53 message_id:int53 reply_markup:ReplyMarkup = Ok;
-
-
-//@description Hides a suggested action @action Suggested action to hide
-hideSuggestedAction action:SuggestedAction = Ok;
-
-//@description Hides the list of contacts that have close birthdays for 24 hours
-hideContactCloseBirthdays = Ok;
-
-
-//@description Returns information about a business connection by its identifier; for bots only @connection_id Identifier of the business connection to return
-getBusinessConnection connection_id:string = BusinessConnection;
-
-
-//@description Returns information about a button of type inlineKeyboardButtonTypeLoginUrl. The method needs to be called when the user presses the button
-//@chat_id Chat identifier of the message with the button
-//@message_id Message identifier of the message with the button. The message must not be scheduled
-//@button_id Button identifier
-getLoginUrlInfo chat_id:int53 message_id:int53 button_id:int53 = LoginUrlInfo;
-
-//@description Returns an HTTP URL which can be used to automatically authorize the user on a website after clicking an inline button of type inlineKeyboardButtonTypeLoginUrl.
-//-Use the method getLoginUrlInfo to find whether a prior user confirmation is needed. If an error is returned, then the button must be handled as an ordinary URL button
-//@chat_id Chat identifier of the message with the button
-//@message_id Message identifier of the message with the button
-//@button_id Button identifier
-//@allow_write_access Pass true to allow the bot to send messages to the current user
-getLoginUrl chat_id:int53 message_id:int53 button_id:int53 allow_write_access:Bool = HttpUrl;
-
-
-//@description Shares users after pressing a keyboardButtonTypeRequestUsers button with the bot
-//@chat_id Identifier of the chat with the bot
-//@message_id Identifier of the message with the button
-//@button_id Identifier of the button
-//@shared_user_ids Identifiers of the shared users
-//@only_check Pass true to check that the users can be shared by the button instead of actually sharing them
-shareUsersWithBot chat_id:int53 message_id:int53 button_id:int32 shared_user_ids:vector<int53> only_check:Bool = Ok;
-
-//@description Shares a chat after pressing a keyboardButtonTypeRequestChat button with the bot
-//@chat_id Identifier of the chat with the bot
-//@message_id Identifier of the message with the button
-//@button_id Identifier of the button
-//@shared_chat_id Identifier of the shared chat
-//@only_check Pass true to check that the chat can be shared by the button instead of actually sharing it. Doesn't check bot_is_member and bot_administrator_rights restrictions.
-//-If the bot must be a member, then all chats from getGroupsInCommon and all chats, where the user can add the bot, are suitable. In the latter case the bot will be automatically added to the chat.
-//-If the bot must be an administrator, then all chats, where the bot already has requested rights or can be added to administrators by the user, are suitable. In the latter case the bot will be automatically granted requested rights
-shareChatWithBot chat_id:int53 message_id:int53 button_id:int32 shared_chat_id:int53 only_check:Bool = Ok;
-
-
-//@description Sends an inline query to a bot and returns its results. Returns an error with code 502 if the bot fails to answer the query before the query timeout expires
-//@bot_user_id Identifier of the target bot
-//@chat_id Identifier of the chat where the query was sent
-//@user_location Location of the user; pass null if unknown or the bot doesn't need user's location
-//@query Text of the query
-//@offset Offset of the first entry to return; use empty string to get the first chunk of results
-getInlineQueryResults bot_user_id:int53 chat_id:int53 user_location:location query:string offset:string = InlineQueryResults;
-
-//@description Sets the result of an inline query; for bots only
-//@inline_query_id Identifier of the inline query
-//@is_personal Pass true if results may be cached and returned only for the user that sent the query. By default, results may be returned to any user who sends the same query
-//@button Button to be shown above inline query results; pass null if none
-//@results The results of the query
-//@cache_time Allowed time to cache the results of the query, in seconds
-//@next_offset Offset for the next inline query; pass an empty string if there are no more results
-answerInlineQuery inline_query_id:int64 is_personal:Bool button:inlineQueryResultsButton results:vector<InputInlineQueryResult> cache_time:int32 next_offset:string = Ok;
-
-//@description Saves an inline message to be sent by the given user; for bots only
-//@user_id Identifier of the user
-//@result The description of the message
-//@chat_types Types of the chats to which the message can be sent
-savePreparedInlineMessage user_id:int53 result:InputInlineQueryResult chat_types:targetChatTypes = PreparedInlineMessageId;
-
-//@description Saves an inline message to be sent by the given user
-//@bot_user_id Identifier of the bot that created the message
-//@prepared_message_id Identifier of the prepared message
-getPreparedInlineMessage bot_user_id:int53 prepared_message_id:string = PreparedInlineMessage;
-
-
-//@description Returns the most grossing Web App bots
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of bots to be returned; up to 100
-getGrossingWebAppBots offset:string limit:int32 = FoundUsers;
-
-//@description Returns information about a Web App by its short name. Returns a 404 error if the Web App is not found
-//@bot_user_id Identifier of the target bot
-//@web_app_short_name Short name of the Web App
-searchWebApp bot_user_id:int53 web_app_short_name:string = FoundWebApp;
-
-//@description Returns a default placeholder for Web Apps of a bot. This is an offline method. Returns a 404 error if the placeholder isn't known @bot_user_id Identifier of the target bot
-getWebAppPlaceholder bot_user_id:int53 = Outline;
-
-//@description Returns an HTTPS URL of a Web App to open after a link of the type internalLinkTypeWebApp is clicked
-//@chat_id Identifier of the chat in which the link was clicked; pass 0 if none
-//@bot_user_id Identifier of the target bot
-//@web_app_short_name Short name of the Web App
-//@start_parameter Start parameter from internalLinkTypeWebApp
-//@allow_write_access Pass true if the current user allowed the bot to send them messages
-//@parameters Parameters to use to open the Web App
-getWebAppLinkUrl chat_id:int53 bot_user_id:int53 web_app_short_name:string start_parameter:string allow_write_access:Bool parameters:webAppOpenParameters = HttpUrl;
-
-//@description Returns information needed to open the main Web App of a bot
-//@chat_id Identifier of the chat in which the Web App is opened; pass 0 if none
-//@bot_user_id Identifier of the target bot. If the bot is restricted for the current user, then show an error instead of calling the method
-//@start_parameter Start parameter from internalLinkTypeMainWebApp
-//@parameters Parameters to use to open the Web App
-getMainWebApp chat_id:int53 bot_user_id:int53 start_parameter:string parameters:webAppOpenParameters = MainWebApp;
-
-//@description Returns an HTTPS URL of a Web App to open from the side menu, a keyboardButtonTypeWebApp button, or an inlineQueryResultsButtonTypeWebApp button
-//@bot_user_id Identifier of the target bot. If the bot is restricted for the current user, then show an error instead of calling the method
-//@url The URL from a keyboardButtonTypeWebApp button, inlineQueryResultsButtonTypeWebApp button, or an empty string when the bot is opened from the side menu
-//@parameters Parameters to use to open the Web App
-getWebAppUrl bot_user_id:int53 url:string parameters:webAppOpenParameters = HttpUrl;
-
-//@description Sends data received from a keyboardButtonTypeWebApp Web App to a bot
-//@bot_user_id Identifier of the target bot
-//@button_text Text of the keyboardButtonTypeWebApp button, which opened the Web App
-//@data The data
-sendWebAppData bot_user_id:int53 button_text:string data:string = Ok;
-
-//@description Informs TDLib that a Web App is being opened from the attachment menu, a botMenuButton button, an internalLinkTypeAttachmentMenuBot link, or an inlineKeyboardButtonTypeWebApp button.
-//-For each bot, a confirmation alert about data sent to the bot must be shown once
-//@chat_id Identifier of the chat in which the Web App is opened. The Web App can't be opened in secret chats
-//@bot_user_id Identifier of the bot, providing the Web App. If the bot is restricted for the current user, then show an error instead of calling the method
-//@url The URL from an inlineKeyboardButtonTypeWebApp button, a botMenuButton button, an internalLinkTypeAttachmentMenuBot link, or an empty string otherwise
-//@message_thread_id If not 0, the message thread identifier in which the message will be sent
-//@reply_to Information about the message or story to be replied in the message sent by the Web App; pass null if none
-//@parameters Parameters to use to open the Web App
-openWebApp chat_id:int53 bot_user_id:int53 url:string message_thread_id:int53 reply_to:InputMessageReplyTo parameters:webAppOpenParameters = WebAppInfo;
-
-//@description Informs TDLib that a previously opened Web App was closed @web_app_launch_id Identifier of Web App launch, received from openWebApp
-closeWebApp web_app_launch_id:int64 = Ok;
-
-//@description Sets the result of interaction with a Web App and sends corresponding message on behalf of the user to the chat from which the query originated; for bots only
-//@web_app_query_id Identifier of the Web App query
-//@result The result of the query
-answerWebAppQuery web_app_query_id:string result:InputInlineQueryResult = SentWebAppMessage;
-
-//@description Checks whether a file can be downloaded and saved locally by Web App request
-//@bot_user_id Identifier of the bot, providing the Web App
-//@file_name Name of the file
-//@url URL of the file
-checkWebAppFileDownload bot_user_id:int53 file_name:string url:string = Ok;
-
-
-//@description Sends a callback query to a bot and returns an answer. Returns an error with code 502 if the bot fails to answer the query before the query timeout expires
-//@chat_id Identifier of the chat with the message
-//@message_id Identifier of the message from which the query originated. The message must not be scheduled
-//@payload Query payload
-getCallbackQueryAnswer chat_id:int53 message_id:int53 payload:CallbackQueryPayload = CallbackQueryAnswer;
-
-//@description Sets the result of a callback query; for bots only
-//@callback_query_id Identifier of the callback query
-//@text Text of the answer
-//@show_alert Pass true to show an alert to the user instead of a toast notification
-//@url URL to be opened
-//@cache_time Time during which the result of the query can be cached, in seconds
-answerCallbackQuery callback_query_id:int64 text:string show_alert:Bool url:string cache_time:int32 = Ok;
-
-
-//@description Sets the result of a shipping query; for bots only @shipping_query_id Identifier of the shipping query @shipping_options Available shipping options @error_message An error message, empty on success
-answerShippingQuery shipping_query_id:int64 shipping_options:vector<shippingOption> error_message:string = Ok;
-
-//@description Sets the result of a pre-checkout query; for bots only @pre_checkout_query_id Identifier of the pre-checkout query @error_message An error message, empty on success
-answerPreCheckoutQuery pre_checkout_query_id:int64 error_message:string = Ok;
-
-
-//@description Updates the game score of the specified user in the game; for bots only
-//@chat_id The chat to which the message with the game belongs
-//@message_id Identifier of the message
-//@edit_message Pass true to edit the game message to include the current scoreboard
-//@user_id User identifier
-//@score The new score
-//@force Pass true to update the score even if it decreases. If the score is 0, the user will be deleted from the high score table
-setGameScore chat_id:int53 message_id:int53 edit_message:Bool user_id:int53 score:int32 force:Bool = Message;
-
-//@description Updates the game score of the specified user in a game; for bots only
-//@inline_message_id Inline message identifier
-//@edit_message Pass true to edit the game message to include the current scoreboard
-//@user_id User identifier
-//@score The new score
-//@force Pass true to update the score even if it decreases. If the score is 0, the user will be deleted from the high score table
-setInlineGameScore inline_message_id:string edit_message:Bool user_id:int53 score:int32 force:Bool = Ok;
-
-//@description Returns the high scores for a game and some part of the high score table in the range of the specified user; for bots only @chat_id The chat that contains the message with the game @message_id Identifier of the message @user_id User identifier
-getGameHighScores chat_id:int53 message_id:int53 user_id:int53 = GameHighScores;
-
-//@description Returns game high scores and some part of the high score table in the range of the specified user; for bots only @inline_message_id Inline message identifier @user_id User identifier
-getInlineGameHighScores inline_message_id:string user_id:int53 = GameHighScores;
-
-
-//@description Deletes the default reply markup from a chat. Must be called after a one-time keyboard or a replyMarkupForceReply reply markup has been used. An updateChatReplyMarkup update will be sent if the reply markup is changed
-//@chat_id Chat identifier
-//@message_id The message identifier of the used keyboard
-deleteChatReplyMarkup chat_id:int53 message_id:int53 = Ok;
-
-
-//@description Sends a notification about user activity in a chat
-//@chat_id Chat identifier
-//@message_thread_id If not 0, the message thread identifier in which the action was performed
-//@business_connection_id Unique identifier of business connection on behalf of which to send the request; for bots only
-//@action The action description; pass null to cancel the currently active action
-sendChatAction chat_id:int53 message_thread_id:int53 business_connection_id:string action:ChatAction = Ok;
-
-
-//@description Informs TDLib that the chat is opened by the user. Many useful activities depend on the chat being opened or closed (e.g., in supergroups and channels all updates are received only for opened chats) @chat_id Chat identifier
-openChat chat_id:int53 = Ok;
-
-//@description Informs TDLib that the chat is closed by the user. Many useful activities depend on the chat being opened or closed @chat_id Chat identifier
-closeChat chat_id:int53 = Ok;
-
-//@description Informs TDLib that messages are being viewed by the user. Sponsored messages must be marked as viewed only when the entire text of the message is shown on the screen (excluding the button).
-//-Many useful activities depend on whether the messages are currently being viewed or not (e.g., marking messages as read, incrementing a view counter, updating a view counter, removing deleted messages in supergroups and channels)
-//@chat_id Chat identifier
-//@message_ids The identifiers of the messages being viewed
-//@source Source of the message view; pass null to guess the source based on chat open state
-//@force_read Pass true to mark as read the specified messages even the chat is closed
-viewMessages chat_id:int53 message_ids:vector<int53> source:MessageSource force_read:Bool = Ok;
-
-//@description Informs TDLib that the message content has been opened (e.g., the user has opened a photo, video, document, location or venue, or has listened to an audio file or voice note message).
-//-An updateMessageContentOpened update will be generated if something has changed
-//@chat_id Chat identifier of the message
-//@message_id Identifier of the message with the opened content
-openMessageContent chat_id:int53 message_id:int53 = Ok;
-
-//@description Informs TDLib that a message with an animated emoji was clicked by the user. Returns a big animated sticker to be played or a 404 error if usual animation needs to be played @chat_id Chat identifier of the message @message_id Identifier of the clicked message
-clickAnimatedEmojiMessage chat_id:int53 message_id:int53 = Sticker;
-
-//@description Returns an HTTPS or a tg: link with the given type. Can be called before authorization @type Expected type of the link @is_http Pass true to create an HTTPS link (only available for some link types); pass false to create a tg: link
-getInternalLink type:InternalLinkType is_http:Bool = HttpUrl;
-
-//@description Returns information about the type of internal link. Returns a 404 error if the link is not internal. Can be called before authorization @link The link
-getInternalLinkType link:string = InternalLinkType;
-
-//@description Returns information about an action to be done when the current user clicks an external link. Don't use this method for links from secret chats if link preview is disabled in secret chats @link The link
-getExternalLinkInfo link:string = LoginUrlInfo;
-
-//@description Returns an HTTP URL which can be used to automatically authorize the current user on a website after clicking an HTTP link. Use the method getExternalLinkInfo to find whether a prior user confirmation is needed
-//@link The HTTP link
-//@allow_write_access Pass true if the current user allowed the bot, returned in getExternalLinkInfo, to send them messages
-getExternalLink link:string allow_write_access:Bool = HttpUrl;
-
-
-//@description Marks all mentions in a chat as read @chat_id Chat identifier
-readAllChatMentions chat_id:int53 = Ok;
-
-//@description Marks all mentions in a forum topic as read @chat_id Chat identifier @message_thread_id Message thread identifier in which mentions are marked as read
-readAllMessageThreadMentions chat_id:int53 message_thread_id:int53 = Ok;
-
-//@description Marks all reactions in a chat or a forum topic as read @chat_id Chat identifier
-readAllChatReactions chat_id:int53 = Ok;
-
-//@description Marks all reactions in a forum topic as read @chat_id Chat identifier @message_thread_id Message thread identifier in which reactions are marked as read
-readAllMessageThreadReactions chat_id:int53 message_thread_id:int53 = Ok;
-
-
-//@description Returns an existing chat corresponding to a given user @user_id User identifier @force Pass true to create the chat without a network request. In this case all information about the chat except its type, title and photo can be incorrect
-createPrivateChat user_id:int53 force:Bool = Chat;
-
-//@description Returns an existing chat corresponding to a known basic group @basic_group_id Basic group identifier @force Pass true to create the chat without a network request. In this case all information about the chat except its type, title and photo can be incorrect
-createBasicGroupChat basic_group_id:int53 force:Bool = Chat;
-
-//@description Returns an existing chat corresponding to a known supergroup or channel @supergroup_id Supergroup or channel identifier @force Pass true to create the chat without a network request. In this case all information about the chat except its type, title and photo can be incorrect
-createSupergroupChat supergroup_id:int53 force:Bool = Chat;
-
-//@description Returns an existing chat corresponding to a known secret chat @secret_chat_id Secret chat identifier
-createSecretChat secret_chat_id:int32 = Chat;
-
-//@description Creates a new basic group and sends a corresponding messageBasicGroupChatCreate. Returns information about the newly created chat
-//@user_ids Identifiers of users to be added to the basic group; may be empty to create a basic group without other members
-//@title Title of the new basic group; 1-128 characters
-//@message_auto_delete_time Message auto-delete time value, in seconds; must be from 0 up to 365 * 86400 and be divisible by 86400. If 0, then messages aren't deleted automatically
-createNewBasicGroupChat user_ids:vector<int53> title:string message_auto_delete_time:int32 = CreatedBasicGroupChat;
-
-//@description Creates a new supergroup or channel and sends a corresponding messageSupergroupChatCreate. Returns the newly created chat
-//@title Title of the new chat; 1-128 characters
-//@is_forum Pass true to create a forum supergroup chat
-//@is_channel Pass true to create a channel chat; ignored if a forum is created
-//@param_description Chat description; 0-255 characters
-//@location Chat location if a location-based supergroup is being created; pass null to create an ordinary supergroup chat
-//@message_auto_delete_time Message auto-delete time value, in seconds; must be from 0 up to 365 * 86400 and be divisible by 86400. If 0, then messages aren't deleted automatically
-//@for_import Pass true to create a supergroup for importing messages using importMessages
-createNewSupergroupChat title:string is_forum:Bool is_channel:Bool description:string location:chatLocation message_auto_delete_time:int32 for_import:Bool = Chat;
-
-//@description Creates a new secret chat. Returns the newly created chat @user_id Identifier of the target user
-createNewSecretChat user_id:int53 = Chat;
-
-//@description Creates a new supergroup from an existing basic group and sends a corresponding messageChatUpgradeTo and messageChatUpgradeFrom; requires owner privileges. Deactivates the original basic group @chat_id Identifier of the chat to upgrade
-upgradeBasicGroupChatToSupergroupChat chat_id:int53 = Chat;
-
-
-//@description Returns chat lists to which the chat can be added. This is an offline method @chat_id Chat identifier
-getChatListsToAddChat chat_id:int53 = ChatLists;
-
-//@description Adds a chat to a chat list. A chat can't be simultaneously in Main and Archive chat lists, so it is automatically removed from another one if needed
-//@chat_id Chat identifier
-//@chat_list The chat list. Use getChatListsToAddChat to get suitable chat lists
-addChatToList chat_id:int53 chat_list:ChatList = Ok;
-
-//@description Returns information about a chat folder by its identifier @chat_folder_id Chat folder identifier
-getChatFolder chat_folder_id:int32 = ChatFolder;
-
-//@description Creates new chat folder. Returns information about the created chat folder. There can be up to getOption("chat_folder_count_max") chat folders, but the limit can be increased with Telegram Premium @folder The new chat folder
-createChatFolder folder:chatFolder = ChatFolderInfo;
-
-//@description Edits existing chat folder. Returns information about the edited chat folder @chat_folder_id Chat folder identifier @folder The edited chat folder
-editChatFolder chat_folder_id:int32 folder:chatFolder = ChatFolderInfo;
-
-//@description Deletes existing chat folder @chat_folder_id Chat folder identifier @leave_chat_ids Identifiers of the chats to leave. The chats must be pinned or always included in the folder
-deleteChatFolder chat_folder_id:int32 leave_chat_ids:vector<int53> = Ok;
-
-//@description Returns identifiers of pinned or always included chats from a chat folder, which are suggested to be left when the chat folder is deleted @chat_folder_id Chat folder identifier
-getChatFolderChatsToLeave chat_folder_id:int32 = Chats;
-
-//@description Returns approximate number of chats in a being created chat folder. Main and archive chat lists must be fully preloaded for this function to work correctly @folder The new chat folder
-getChatFolderChatCount folder:chatFolder = Count;
-
-//@description Changes the order of chat folders @chat_folder_ids Identifiers of chat folders in the new correct order @main_chat_list_position Position of the main chat list among chat folders, 0-based. Can be non-zero only for Premium users
-reorderChatFolders chat_folder_ids:vector<int32> main_chat_list_position:int32 = Ok;
-
-//@description Toggles whether chat folder tags are enabled @are_tags_enabled Pass true to enable folder tags; pass false to disable them
-toggleChatFolderTags are_tags_enabled:Bool = Ok;
-
-//@description Returns recommended chat folders for the current user
-getRecommendedChatFolders = RecommendedChatFolders;
-
-//@description Returns default icon name for a folder. Can be called synchronously @folder Chat folder
-getChatFolderDefaultIconName folder:chatFolder = ChatFolderIcon;
-
-//@description Returns identifiers of chats from a chat folder, suitable for adding to a chat folder invite link @chat_folder_id Chat folder identifier
-getChatsForChatFolderInviteLink chat_folder_id:int32 = Chats;
-
-//@description Creates a new invite link for a chat folder. A link can be created for a chat folder if it has only pinned and included chats
-//@chat_folder_id Chat folder identifier
-//@name Name of the link; 0-32 characters
-//@chat_ids Identifiers of chats to be accessible by the invite link. Use getChatsForChatFolderInviteLink to get suitable chats. Basic groups will be automatically converted to supergroups before link creation
-createChatFolderInviteLink chat_folder_id:int32 name:string chat_ids:vector<int53> = ChatFolderInviteLink;
-
-//@description Returns invite links created by the current user for a shareable chat folder @chat_folder_id Chat folder identifier
-getChatFolderInviteLinks chat_folder_id:int32 = ChatFolderInviteLinks;
-
-//@description Edits an invite link for a chat folder
-//@chat_folder_id Chat folder identifier
-//@invite_link Invite link to be edited
-//@name New name of the link; 0-32 characters
-//@chat_ids New identifiers of chats to be accessible by the invite link. Use getChatsForChatFolderInviteLink to get suitable chats. Basic groups will be automatically converted to supergroups before link editing
-editChatFolderInviteLink chat_folder_id:int32 invite_link:string name:string chat_ids:vector<int53> = ChatFolderInviteLink;
-
-//@description Deletes an invite link for a chat folder
-//@chat_folder_id Chat folder identifier
-//@invite_link Invite link to be deleted
-deleteChatFolderInviteLink chat_folder_id:int32 invite_link:string = Ok;
-
-//@description Checks the validity of an invite link for a chat folder and returns information about the corresponding chat folder @invite_link Invite link to be checked
-checkChatFolderInviteLink invite_link:string = ChatFolderInviteLinkInfo;
-
-//@description Adds a chat folder by an invite link @invite_link Invite link for the chat folder @chat_ids Identifiers of the chats added to the chat folder. The chats are automatically joined if they aren't joined yet
-addChatFolderByInviteLink invite_link:string chat_ids:vector<int53> = Ok;
-
-//@description Returns new chats added to a shareable chat folder by its owner. The method must be called at most once in getOption("chat_folder_new_chats_update_period") for the given chat folder @chat_folder_id Chat folder identifier
-getChatFolderNewChats chat_folder_id:int32 = Chats;
-
-//@description Process new chats added to a shareable chat folder by its owner @chat_folder_id Chat folder identifier @added_chat_ids Identifiers of the new chats, which are added to the chat folder. The chats are automatically joined if they aren't joined yet
-processChatFolderNewChats chat_folder_id:int32 added_chat_ids:vector<int53> = Ok;
-
-//@description Returns settings for automatic moving of chats to and from the Archive chat lists
-getArchiveChatListSettings = ArchiveChatListSettings;
-
-//@description Changes settings for automatic moving of chats to and from the Archive chat lists @settings New settings
-setArchiveChatListSettings settings:archiveChatListSettings = Ok;
-
-
-//@description Changes the chat title. Supported only for basic groups, supergroups and channels. Requires can_change_info member right
-//@chat_id Chat identifier
-//@title New title of the chat; 1-128 characters
-setChatTitle chat_id:int53 title:string = Ok;
-
-//@description Changes the photo of a chat. Supported only for basic groups, supergroups and channels. Requires can_change_info member right
-//@chat_id Chat identifier
-//@photo New chat photo; pass null to delete the chat photo
-setChatPhoto chat_id:int53 photo:InputChatPhoto = Ok;
-
-//@description Changes accent color and background custom emoji of a channel chat. Requires can_change_info administrator right
-//@chat_id Chat identifier
-//@accent_color_id Identifier of the accent color to use. The chat must have at least accentColor.min_channel_chat_boost_level boost level to pass the corresponding color
-//@background_custom_emoji_id Identifier of a custom emoji to be shown on the reply header and link preview background; 0 if none. Use chatBoostLevelFeatures.can_set_background_custom_emoji to check whether a custom emoji can be set
-setChatAccentColor chat_id:int53 accent_color_id:int32 background_custom_emoji_id:int64 = Ok;
-
-//@description Changes accent color and background custom emoji for profile of a supergroup or channel chat. Requires can_change_info administrator right
-//@chat_id Chat identifier
-//@profile_accent_color_id Identifier of the accent color to use for profile; pass -1 if none. The chat must have at least profileAccentColor.min_supergroup_chat_boost_level for supergroups
-//-or profileAccentColor.min_channel_chat_boost_level for channels boost level to pass the corresponding color
-//@profile_background_custom_emoji_id Identifier of a custom emoji to be shown on the chat's profile photo background; 0 if none. Use chatBoostLevelFeatures.can_set_profile_background_custom_emoji to check whether a custom emoji can be set
-setChatProfileAccentColor chat_id:int53 profile_accent_color_id:int32 profile_background_custom_emoji_id:int64 = Ok;
-
-//@description Changes the message auto-delete or self-destruct (for secret chats) time in a chat. Requires change_info administrator right in basic groups, supergroups and channels.
-//-Message auto-delete time can't be changed in a chat with the current user (Saved Messages) and the chat 777000 (Telegram).
-//@chat_id Chat identifier
-//@message_auto_delete_time New time value, in seconds; unless the chat is secret, it must be from 0 up to 365 * 86400 and be divisible by 86400. If 0, then messages aren't deleted automatically
-setChatMessageAutoDeleteTime chat_id:int53 message_auto_delete_time:int32 = Ok;
-
-//@description Changes the emoji status of a chat. Use chatBoostLevelFeatures.can_set_emoji_status to check whether an emoji status can be set. Requires can_change_info administrator right
-//@chat_id Chat identifier
-//@emoji_status New emoji status; pass null to remove emoji status
-setChatEmojiStatus chat_id:int53 emoji_status:emojiStatus = Ok;
-
-//@description Changes the chat members permissions. Supported only for basic groups and supergroups. Requires can_restrict_members administrator right
-//@chat_id Chat identifier
-//@permissions New non-administrator members permissions in the chat
-setChatPermissions chat_id:int53 permissions:chatPermissions = Ok;
-
-//@description Sets the background in a specific chat. Supported only in private and secret chats with non-deleted users, and in chats with sufficient boost level and can_change_info administrator right
-//@chat_id Chat identifier
-//@background The input background to use; pass null to create a new filled or chat theme background
-//@type Background type; pass null to use default background type for the chosen background; backgroundTypeChatTheme isn't supported for private and secret chats.
-//-Use chatBoostLevelFeatures.chat_theme_background_count and chatBoostLevelFeatures.can_set_custom_background to check whether the background type can be set in the boosted chat
-//@dark_theme_dimming Dimming of the background in dark themes, as a percentage; 0-100. Applied only to Wallpaper and Fill types of background
-//@only_for_self Pass true to set background only for self; pass false to set background for all chat users. Always false for backgrounds set in boosted chats. Background can be set for both users only by Telegram Premium users and if set background isn't of the type inputBackgroundPrevious
-setChatBackground chat_id:int53 background:InputBackground type:BackgroundType dark_theme_dimming:int32 only_for_self:Bool = Ok;
-
-//@description Deletes background in a specific chat
-//@chat_id Chat identifier
-//@restore_previous Pass true to restore previously set background. Can be used only in private and secret chats with non-deleted users if userFullInfo.set_chat_background == true.
-//-Supposed to be used from messageChatSetBackground messages with the currently set background that was set for both sides by the other user
-deleteChatBackground chat_id:int53 restore_previous:Bool = Ok;
-
-//@description Changes the chat theme. Supported only in private and secret chats @chat_id Chat identifier @theme_name Name of the new chat theme; pass an empty string to return the default theme
-setChatTheme chat_id:int53 theme_name:string = Ok;
-
-//@description Changes the draft message in a chat
-//@chat_id Chat identifier
-//@message_thread_id If not 0, the message thread identifier in which the draft was changed
-//@draft_message New draft message; pass null to remove the draft. All files in draft message content must be of the type inputFileLocal. Media thumbnails and captions are ignored
-setChatDraftMessage chat_id:int53 message_thread_id:int53 draft_message:draftMessage = Ok;
-
-//@description Changes the notification settings of a chat. Notification settings of a chat with the current user (Saved Messages) can't be changed
-//@chat_id Chat identifier
-//@notification_settings New notification settings for the chat. If the chat is muted for more than 366 days, it is considered to be muted forever
-setChatNotificationSettings chat_id:int53 notification_settings:chatNotificationSettings = Ok;
-
-//@description Changes the ability of users to save, forward, or copy chat content. Supported only for basic groups, supergroups and channels. Requires owner privileges
-//@chat_id Chat identifier
-//@has_protected_content New value of has_protected_content
-toggleChatHasProtectedContent chat_id:int53 has_protected_content:Bool = Ok;
-
-//@description Changes the view_as_topics setting of a forum chat or Saved Messages @chat_id Chat identifier @view_as_topics New value of view_as_topics
-toggleChatViewAsTopics chat_id:int53 view_as_topics:Bool = Ok;
-
-//@description Changes the translatable state of a chat @chat_id Chat identifier @is_translatable New value of is_translatable
-toggleChatIsTranslatable chat_id:int53 is_translatable:Bool = Ok;
-
-//@description Changes the marked as unread state of a chat @chat_id Chat identifier @is_marked_as_unread New value of is_marked_as_unread
-toggleChatIsMarkedAsUnread chat_id:int53 is_marked_as_unread:Bool = Ok;
-
-//@description Changes the value of the default disable_notification parameter, used when a message is sent to a chat @chat_id Chat identifier @default_disable_notification New value of default_disable_notification
-toggleChatDefaultDisableNotification chat_id:int53 default_disable_notification:Bool = Ok;
-
-//@description Changes reactions, available in a chat. Available for basic groups, supergroups, and channels. Requires can_change_info member right
-//@chat_id Identifier of the chat
-//@available_reactions Reactions available in the chat. All explicitly specified emoji reactions must be active. In channel chats up to the chat's boost level custom emoji reactions can be explicitly specified
-setChatAvailableReactions chat_id:int53 available_reactions:ChatAvailableReactions = Ok;
-
-//@description Changes application-specific data associated with a chat @chat_id Chat identifier @client_data New value of client_data
-setChatClientData chat_id:int53 client_data:string = Ok;
-
-//@description Changes information about a chat. Available for basic groups, supergroups, and channels. Requires can_change_info member right @chat_id Identifier of the chat @param_description New chat description; 0-255 characters
-setChatDescription chat_id:int53 description:string = Ok;
-
-//@description Changes the discussion group of a channel chat; requires can_change_info administrator right in the channel if it is specified
-//@chat_id Identifier of the channel chat. Pass 0 to remove a link from the supergroup passed in the second argument to a linked channel chat (requires can_pin_messages member right in the supergroup)
-//@discussion_chat_id Identifier of a new channel's discussion group. Use 0 to remove the discussion group. Use the method getSuitableDiscussionChats to find all suitable groups.
-//-Basic group chats must be first upgraded to supergroup chats. If new chat members don't have access to old messages in the supergroup, then toggleSupergroupIsAllHistoryAvailable must be used first to change that
-setChatDiscussionGroup chat_id:int53 discussion_chat_id:int53 = Ok;
-
-//@description Changes the location of a chat. Available only for some location-based supergroups, use supergroupFullInfo.can_set_location to check whether the method is allowed to use @chat_id Chat identifier @location New location for the chat; must be valid and not null
-setChatLocation chat_id:int53 location:chatLocation = Ok;
-
-//@description Changes the slow mode delay of a chat. Available only for supergroups; requires can_restrict_members right @chat_id Chat identifier @slow_mode_delay New slow mode delay for the chat, in seconds; must be one of 0, 10, 30, 60, 300, 900, 3600
-setChatSlowModeDelay chat_id:int53 slow_mode_delay:int32 = Ok;
-
-//@description Pins a message in a chat. A message can be pinned only if messageProperties.can_be_pinned
-//@chat_id Identifier of the chat
-//@message_id Identifier of the new pinned message
-//@disable_notification Pass true to disable notification about the pinned message. Notifications are always disabled in channels and private chats
-//@only_for_self Pass true to pin the message only for self; private chats only
-pinChatMessage chat_id:int53 message_id:int53 disable_notification:Bool only_for_self:Bool = Ok;
-
-//@description Removes a pinned message from a chat; requires can_pin_messages member right if the chat is a basic group or supergroup, or can_edit_messages administrator right if the chat is a channel @chat_id Identifier of the chat @message_id Identifier of the removed pinned message
-unpinChatMessage chat_id:int53 message_id:int53 = Ok;
-
-//@description Removes all pinned messages from a chat; requires can_pin_messages member right if the chat is a basic group or supergroup, or can_edit_messages administrator right if the chat is a channel @chat_id Identifier of the chat
-unpinAllChatMessages chat_id:int53 = Ok;
-
-//@description Removes all pinned messages from a forum topic; requires can_pin_messages member right in the supergroup
-//@chat_id Identifier of the chat
-//@message_thread_id Message thread identifier in which messages will be unpinned
-unpinAllMessageThreadMessages chat_id:int53 message_thread_id:int53 = Ok;
-
-
-//@description Adds the current user as a new member to a chat. Private and secret chats can't be joined using this method. May return an error with a message "INVITE_REQUEST_SENT" if only a join request was created @chat_id Chat identifier
-joinChat chat_id:int53 = Ok;
-
-//@description Removes the current user from chat members. Private and secret chats can't be left using this method @chat_id Chat identifier
-leaveChat chat_id:int53 = Ok;
-
-//@description Adds a new member to a chat; requires can_invite_users member right. Members can't be added to private or secret chats. Returns information about members that weren't added
-//@chat_id Chat identifier
-//@user_id Identifier of the user
-//@forward_limit The number of earlier messages from the chat to be forwarded to the new member; up to 100. Ignored for supergroups and channels, or if the added user is a bot
-addChatMember chat_id:int53 user_id:int53 forward_limit:int32 = FailedToAddMembers;
-
-//@description Adds multiple new members to a chat; requires can_invite_users member right. Currently, this method is only available for supergroups and channels.
-//-This method can't be used to join a chat. Members can't be added to a channel if it has more than 200 members. Returns information about members that weren't added
-//@chat_id Chat identifier
-//@user_ids Identifiers of the users to be added to the chat. The maximum number of added users is 20 for supergroups and 100 for channels
-addChatMembers chat_id:int53 user_ids:vector<int53> = FailedToAddMembers;
-
-//@description Changes the status of a chat member; requires can_invite_users member right to add a chat member, can_promote_members administrator right to change administrator rights of the member,
-//-and can_restrict_members administrator right to change restrictions of a user. This function is currently not suitable for transferring chat ownership; use transferChatOwnership instead.
-//-Use addChatMember or banChatMember if some additional parameters needs to be passed
-//@chat_id Chat identifier
-//@member_id Member identifier. Chats can be only banned and unbanned in supergroups and channels
-//@status The new status of the member in the chat
-setChatMemberStatus chat_id:int53 member_id:MessageSender status:ChatMemberStatus = Ok;
-
-//@description Bans a member in a chat; requires can_restrict_members administrator right. Members can't be banned in private or secret chats. In supergroups and channels, the user will not be able to return to the group on their own using invite links, etc., unless unbanned first
-//@chat_id Chat identifier
-//@member_id Member identifier
-//@banned_until_date Point in time (Unix timestamp) when the user will be unbanned; 0 if never. If the user is banned for more than 366 days or for less than 30 seconds from the current time, the user is considered to be banned forever. Ignored in basic groups and if a chat is banned
-//@revoke_messages Pass true to delete all messages in the chat for the user that is being removed. Always true for supergroups and channels
-banChatMember chat_id:int53 member_id:MessageSender banned_until_date:int32 revoke_messages:Bool = Ok;
-
-//@description Checks whether the current session can be used to transfer a chat ownership to another user
-canTransferOwnership = CanTransferOwnershipResult;
-
-//@description Changes the owner of a chat; requires owner privileges in the chat. Use the method canTransferOwnership to check whether the ownership can be transferred from the current session. Available only for supergroups and channel chats
-//@chat_id Chat identifier
-//@user_id Identifier of the user to which transfer the ownership. The ownership can't be transferred to a bot or to a deleted user
-//@password The 2-step verification password of the current user
-transferChatOwnership chat_id:int53 user_id:int53 password:string = Ok;
-
-//@description Returns information about a single member of a chat @chat_id Chat identifier @member_id Member identifier
-getChatMember chat_id:int53 member_id:MessageSender = ChatMember;
-
-//@description Searches for a specified query in the first name, last name and usernames of the members of a specified chat. Requires administrator rights if the chat is a channel
-//@chat_id Chat identifier
-//@query Query to search for
-//@limit The maximum number of users to be returned; up to 200
-//@filter The type of users to search for; pass null to search among all chat members
-searchChatMembers chat_id:int53 query:string limit:int32 filter:ChatMembersFilter = ChatMembers;
-
-//@description Returns a list of administrators of the chat with their custom titles @chat_id Chat identifier
-getChatAdministrators chat_id:int53 = ChatAdministrators;
-
-
-//@description Clears message drafts in all chats @exclude_secret_chats Pass true to keep local message drafts in secret chats
-clearAllDraftMessages exclude_secret_chats:Bool = Ok;
-
-
-//@description Returns saved notification sound by its identifier. Returns a 404 error if there is no saved notification sound with the specified identifier @notification_sound_id Identifier of the notification sound
-getSavedNotificationSound notification_sound_id:int64 = NotificationSounds;
-
-//@description Returns the list of saved notification sounds. If a sound isn't in the list, then default sound needs to be used
-getSavedNotificationSounds = NotificationSounds;
-
-//@description Adds a new notification sound to the list of saved notification sounds. The new notification sound is added to the top of the list. If it is already in the list, its position isn't changed @sound Notification sound file to add
-addSavedNotificationSound sound:InputFile = NotificationSound;
-
-//@description Removes a notification sound from the list of saved notification sounds @notification_sound_id Identifier of the notification sound
-removeSavedNotificationSound notification_sound_id:int64 = Ok;
-
-
-//@description Returns the list of chats with non-default notification settings for new messages
-//@scope If specified, only chats from the scope will be returned; pass null to return chats from all scopes
-//@compare_sound Pass true to include in the response chats with only non-default sound
-getChatNotificationSettingsExceptions scope:NotificationSettingsScope compare_sound:Bool = Chats;
-
-//@description Returns the notification settings for chats of a given type @scope Types of chats for which to return the notification settings information
-getScopeNotificationSettings scope:NotificationSettingsScope = ScopeNotificationSettings;
-
-//@description Changes notification settings for chats of a given type @scope Types of chats for which to change the notification settings @notification_settings The new notification settings for the given scope
-setScopeNotificationSettings scope:NotificationSettingsScope notification_settings:scopeNotificationSettings = Ok;
-
-//@description Changes notification settings for reactions @notification_settings The new notification settings for reactions
-setReactionNotificationSettings notification_settings:reactionNotificationSettings = Ok;
-
-//@description Resets all chat and scope notification settings to their default values. By default, all chats are unmuted and message previews are shown
-resetAllNotificationSettings = Ok;
-
-
-//@description Changes the pinned state of a chat. There can be up to getOption("pinned_chat_count_max")/getOption("pinned_archived_chat_count_max") pinned non-secret chats and the same number of secret chats in the main/archive chat list. The limit can be increased with Telegram Premium
-//@chat_list Chat list in which to change the pinned state of the chat
-//@chat_id Chat identifier
-//@is_pinned Pass true to pin the chat; pass false to unpin it
-toggleChatIsPinned chat_list:ChatList chat_id:int53 is_pinned:Bool = Ok;
-
-//@description Changes the order of pinned chats @chat_list Chat list in which to change the order of pinned chats @chat_ids The new list of pinned chats
-setPinnedChats chat_list:ChatList chat_ids:vector<int53> = Ok;
-
-//@description Traverse all chats in a chat list and marks all messages in the chats as read @chat_list Chat list in which to mark all chats as read
-readChatList chat_list:ChatList = Ok;
-
-
-//@description Returns the current weather in the given location @location The location
-getCurrentWeather location:location = CurrentWeather;
-
-
-//@description Returns a story
-//@story_sender_chat_id Identifier of the chat that posted the story
-//@story_id Story identifier
-//@only_local Pass true to get only locally available information without sending network requests
-getStory story_sender_chat_id:int53 story_id:int32 only_local:Bool = Story;
-
-//@description Returns supergroup and channel chats in which the current user has the right to post stories. The chats must be rechecked with canSendStory before actually trying to post a story there
-getChatsToSendStories = Chats;
-
-//@description Checks whether the current user can send a story on behalf of a chat; requires can_post_stories right for supergroup and channel chats
-//@chat_id Chat identifier. Pass Saved Messages chat identifier when posting a story on behalf of the current user
-canSendStory chat_id:int53 = CanSendStoryResult;
-
-//@description Sends a new story to a chat; requires can_post_stories right for supergroup and channel chats. Returns a temporary story
-//@chat_id Identifier of the chat that will post the story. Pass Saved Messages chat identifier when posting a story on behalf of the current user
-//@content Content of the story
-//@areas Clickable rectangle areas to be shown on the story media; pass null if none
-//@caption Story caption; pass null to use an empty caption; 0-getOption("story_caption_length_max") characters; can have entities only if getOption("can_use_text_entities_in_story_caption")
-//@privacy_settings The privacy settings for the story; ignored for stories sent to supergroup and channel chats
-//@active_period Period after which the story is moved to archive, in seconds; must be one of 6 * 3600, 12 * 3600, 86400, or 2 * 86400 for Telegram Premium users, and 86400 otherwise
-//@from_story_full_id Full identifier of the original story, which content was used to create the story; pass null if the story isn't repost of another story
-//@is_posted_to_chat_page Pass true to keep the story accessible after expiration
-//@protect_content Pass true if the content of the story must be protected from forwarding and screenshotting
-sendStory chat_id:int53 content:InputStoryContent areas:inputStoryAreas caption:formattedText privacy_settings:StoryPrivacySettings active_period:int32 from_story_full_id:storyFullId is_posted_to_chat_page:Bool protect_content:Bool = Story;
-
-//@description Changes content and caption of a story. Can be called only if story.can_be_edited == true
-//@story_sender_chat_id Identifier of the chat that posted the story
-//@story_id Identifier of the story to edit
-//@content New content of the story; pass null to keep the current content
-//@areas New clickable rectangle areas to be shown on the story media; pass null to keep the current areas. Areas can't be edited if story content isn't changed
-//@caption New story caption; pass null to keep the current caption
-editStory story_sender_chat_id:int53 story_id:int32 content:InputStoryContent areas:inputStoryAreas caption:formattedText = Ok;
-
-//@description Changes cover of a video story. Can be called only if story.can_be_edited == true and the story isn't being edited now
-//@story_sender_chat_id Identifier of the chat that posted the story
-//@story_id Identifier of the story to edit
-//@cover_frame_timestamp New timestamp of the frame, which will be used as video thumbnail
-editStoryCover story_sender_chat_id:int53 story_id:int32 cover_frame_timestamp:double = Ok;
-
-//@description Changes privacy settings of a story. The method can be called only for stories posted on behalf of the current user and if story.can_be_edited == true
-//@story_id Identifier of the story
-//@privacy_settings The new privacy settings for the story
-setStoryPrivacySettings story_id:int32 privacy_settings:StoryPrivacySettings = Ok;
-
-//@description Toggles whether a story is accessible after expiration. Can be called only if story.can_toggle_is_posted_to_chat_page == true
-//@story_sender_chat_id Identifier of the chat that posted the story
-//@story_id Identifier of the story
-//@is_posted_to_chat_page Pass true to make the story accessible after expiration; pass false to make it private
-toggleStoryIsPostedToChatPage story_sender_chat_id:int53 story_id:int32 is_posted_to_chat_page:Bool = Ok;
-
-//@description Deletes a previously sent story. Can be called only if story.can_be_deleted == true
-//@story_sender_chat_id Identifier of the chat that posted the story
-//@story_id Identifier of the story to delete
-deleteStory story_sender_chat_id:int53 story_id:int32 = Ok;
-
-//@description Returns the list of chats with non-default notification settings for stories
-getStoryNotificationSettingsExceptions = Chats;
-
-//@description Loads more active stories from a story list. The loaded stories will be sent through updates. Active stories are sorted by
-//-the pair (active_stories.order, active_stories.story_sender_chat_id) in descending order. Returns a 404 error if all active stories have been loaded
-//@story_list The story list in which to load active stories
-loadActiveStories story_list:StoryList = Ok;
-
-//@description Changes story list in which stories from the chat are shown @chat_id Identifier of the chat that posted stories @story_list New list for active stories posted by the chat
-setChatActiveStoriesList chat_id:int53 story_list:StoryList = Ok;
-
-//@description Returns the list of active stories posted by the given chat @chat_id Chat identifier
-getChatActiveStories chat_id:int53 = ChatActiveStories;
-
-//@description Returns the list of stories that posted by the given chat to its chat page. If from_story_id == 0, then pinned stories are returned first.
-//-Then, stories are returned in reverse chronological order (i.e., in order of decreasing story_id). For optimal performance, the number of returned stories is chosen by TDLib
-//@chat_id Chat identifier
-//@from_story_id Identifier of the story starting from which stories must be returned; use 0 to get results from pinned and the newest story
-//@limit The maximum number of stories to be returned.
-//-For optimal performance, the number of returned stories is chosen by TDLib and can be smaller than the specified limit
-getChatPostedToChatPageStories chat_id:int53 from_story_id:int32 limit:int32 = Stories;
-
-//@description Returns the list of all stories posted by the given chat; requires can_edit_stories right in the chat.
-//-The stories are returned in reverse chronological order (i.e., in order of decreasing story_id). For optimal performance, the number of returned stories is chosen by TDLib
-//@chat_id Chat identifier
-//@from_story_id Identifier of the story starting from which stories must be returned; use 0 to get results from the last story
-//@limit The maximum number of stories to be returned.
-//-For optimal performance, the number of returned stories is chosen by TDLib and can be smaller than the specified limit
-getChatArchivedStories chat_id:int53 from_story_id:int32 limit:int32 = Stories;
-
-//@description Changes the list of pinned stories on a chat page; requires can_edit_stories right in the chat
-//@chat_id Identifier of the chat that posted the stories
-//@story_ids New list of pinned stories. All stories must be posted to the chat page first. There can be up to getOption("pinned_story_count_max") pinned stories on a chat page
-setChatPinnedStories chat_id:int53 story_ids:vector<int32> = Ok;
-
-//@description Informs TDLib that a story is opened and is being viewed by the user
-//@story_sender_chat_id The identifier of the sender of the opened story
-//@story_id The identifier of the story
-openStory story_sender_chat_id:int53 story_id:int32 = Ok;
-
-//@description Informs TDLib that a story is closed by the user
-//@story_sender_chat_id The identifier of the sender of the story to close
-//@story_id The identifier of the story
-closeStory story_sender_chat_id:int53 story_id:int32 = Ok;
-
-//@description Returns reactions, which can be chosen for a story @row_size Number of reaction per row, 5-25
-getStoryAvailableReactions row_size:int32 = AvailableReactions;
-
-//@description Changes chosen reaction on a story that has already been sent
-//@story_sender_chat_id The identifier of the sender of the story
-//@story_id The identifier of the story
-//@reaction_type Type of the reaction to set; pass null to remove the reaction. Custom emoji reactions can be used only by Telegram Premium users. Paid reactions can't be set
-//@update_recent_reactions Pass true if the reaction needs to be added to recent reactions
-setStoryReaction story_sender_chat_id:int53 story_id:int32 reaction_type:ReactionType update_recent_reactions:Bool = Ok;
-
-//@description Returns interactions with a story. The method can be called only for stories posted on behalf of the current user
-//@story_id Story identifier
-//@query Query to search for in names, usernames and titles; may be empty to get all relevant interactions
-//@only_contacts Pass true to get only interactions by contacts; pass false to get all relevant interactions
-//@prefer_forwards Pass true to get forwards and reposts first, then reactions, then other views; pass false to get interactions sorted just by interaction date
-//@prefer_with_reaction Pass true to get interactions with reaction first; pass false to get interactions sorted just by interaction date. Ignored if prefer_forwards == true
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of story interactions to return
-getStoryInteractions story_id:int32 query:string only_contacts:Bool prefer_forwards:Bool prefer_with_reaction:Bool offset:string limit:int32 = StoryInteractions;
-
-//@description Returns interactions with a story posted in a chat. Can be used only if story is posted on behalf of a chat and the user is an administrator in the chat
-//@story_sender_chat_id The identifier of the sender of the story
-//@story_id Story identifier
-//@reaction_type Pass the default heart reaction or a suggested reaction type to receive only interactions with the specified reaction type; pass null to receive all interactions; reactionTypePaid isn't supported
-//@prefer_forwards Pass true to get forwards and reposts first, then reactions, then other views; pass false to get interactions sorted just by interaction date
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of story interactions to return
-getChatStoryInteractions story_sender_chat_id:int53 story_id:int32 reaction_type:ReactionType prefer_forwards:Bool offset:string limit:int32 = StoryInteractions;
-
-//@description Reports a story to the Telegram moderators
-//@story_sender_chat_id The identifier of the sender of the story to report
-//@story_id The identifier of the story to report
-//@option_id Option identifier chosen by the user; leave empty for the initial request
-//@text Additional report details; 0-1024 characters; leave empty for the initial request
-reportStory story_sender_chat_id:int53 story_id:int32 option_id:bytes text:string = ReportStoryResult;
-
-//@description Activates stealth mode for stories, which hides all views of stories from the current user in the last "story_stealth_mode_past_period" seconds
-//-and for the next "story_stealth_mode_future_period" seconds; for Telegram Premium users only
-activateStoryStealthMode = Ok;
-
-//@description Returns forwards of a story as a message to public chats and reposts by public channels. Can be used only if the story is posted on behalf of the current user or story.can_get_statistics == true.
-//-For optimal performance, the number of returned messages and stories is chosen by TDLib
-//@story_sender_chat_id The identifier of the sender of the story
-//@story_id The identifier of the story
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of messages and stories to be returned; must be positive and can't be greater than 100. For optimal performance, the number of returned objects is chosen by TDLib and can be smaller than the specified limit
-getStoryPublicForwards story_sender_chat_id:int53 story_id:int32 offset:string limit:int32 = PublicForwards;
-
-
-//@description Returns the list of features available on the specific chat boost level. This is an offline method
-//@is_channel Pass true to get the list of features for channels; pass false to get the list of features for supergroups
-//@level Chat boost level
-getChatBoostLevelFeatures is_channel:Bool level:int32 = ChatBoostLevelFeatures;
-
-//@description Returns the list of features available for different chat boost levels. This is an offline method
-//@is_channel Pass true to get the list of features for channels; pass false to get the list of features for supergroups
-getChatBoostFeatures is_channel:Bool = ChatBoostFeatures;
-
-//@description Returns the list of available chat boost slots for the current user
-getAvailableChatBoostSlots = ChatBoostSlots;
-
-//@description Returns the current boost status for a supergroup or a channel chat @chat_id Identifier of the chat
-getChatBoostStatus chat_id:int53 = ChatBoostStatus;
-
-//@description Boosts a chat and returns the list of available chat boost slots for the current user after the boost
-//@chat_id Identifier of the chat
-//@slot_ids Identifiers of boost slots of the current user from which to apply boosts to the chat
-boostChat chat_id:int53 slot_ids:vector<int32> = ChatBoostSlots;
-
-//@description Returns an HTTPS link to boost the specified supergroup or channel chat @chat_id Identifier of the chat
-getChatBoostLink chat_id:int53 = ChatBoostLink;
-
-//@description Returns information about a link to boost a chat. Can be called for any internal link of the type internalLinkTypeChatBoost @url The link to boost a chat
-getChatBoostLinkInfo url:string = ChatBoostLinkInfo;
-
-//@description Returns the list of boosts applied to a chat; requires administrator rights in the chat
-//@chat_id Identifier of the chat
-//@only_gift_codes Pass true to receive only boosts received from gift codes and giveaways created by the chat
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of boosts to be returned; up to 100. For optimal performance, the number of returned boosts can be smaller than the specified limit
-getChatBoosts chat_id:int53 only_gift_codes:Bool offset:string limit:int32 = FoundChatBoosts;
-
-//@description Returns the list of boosts applied to a chat by a given user; requires administrator rights in the chat; for bots only
-//@chat_id Identifier of the chat
-//@user_id Identifier of the user
-getUserChatBoosts chat_id:int53 user_id:int53 = FoundChatBoosts;
-
-
-//@description Returns information about a bot that can be added to attachment or side menu @bot_user_id Bot's user identifier
-getAttachmentMenuBot bot_user_id:int53 = AttachmentMenuBot;
-
-//@description Adds or removes a bot to attachment and side menu. Bot can be added to the menu, only if userTypeBot.can_be_added_to_attachment_menu == true
-//@bot_user_id Bot's user identifier
-//@is_added Pass true to add the bot to attachment menu; pass false to remove the bot from attachment menu
-//@allow_write_access Pass true if the current user allowed the bot to send them messages. Ignored if is_added is false
-toggleBotIsAddedToAttachmentMenu bot_user_id:int53 is_added:Bool allow_write_access:Bool = Ok;
-
-
-//@description Returns up to 8 emoji statuses, which must be shown right after the default Premium Badge in the emoji status list for self status
-getThemedEmojiStatuses = EmojiStatusCustomEmojis;
-
-//@description Returns recent emoji statuses for self status
-getRecentEmojiStatuses = EmojiStatuses;
-
-//@description Returns available upgraded gift emoji statuses for self status
-getUpgradedGiftEmojiStatuses = EmojiStatuses;
-
-//@description Returns default emoji statuses for self status
-getDefaultEmojiStatuses = EmojiStatusCustomEmojis;
-
-//@description Clears the list of recently used emoji statuses for self status
-clearRecentEmojiStatuses = Ok;
-
-
-//@description Returns up to 8 emoji statuses, which must be shown in the emoji status list for chats
-getThemedChatEmojiStatuses = EmojiStatusCustomEmojis;
-
-//@description Returns default emoji statuses for chats
-getDefaultChatEmojiStatuses = EmojiStatusCustomEmojis;
-
-//@description Returns the list of emoji statuses, which can't be used as chat emoji status, even they are from a sticker set with is_allowed_as_chat_emoji_status == true
-getDisallowedChatEmojiStatuses = EmojiStatusCustomEmojis;
-
-
-//@description Downloads a file from the cloud. Download progress and completion of the download will be notified through updateFile updates
-//@file_id Identifier of the file to download
-//@priority Priority of the download (1-32). The higher the priority, the earlier the file will be downloaded. If the priorities of two files are equal, then the last one for which downloadFile/addFileToDownloads was called will be downloaded first
-//@offset The starting position from which the file needs to be downloaded
-//@limit Number of bytes which need to be downloaded starting from the "offset" position before the download will automatically be canceled; use 0 to download without a limit
-//@synchronous Pass true to return response only after the file download has succeeded, has failed, has been canceled, or a new downloadFile request with different offset/limit parameters was sent; pass false to return file state immediately, just after the download has been started
-downloadFile file_id:int32 priority:int32 offset:int53 limit:int53 synchronous:Bool = File;
-
-//@description Returns file downloaded prefix size from a given offset, in bytes @file_id Identifier of the file @offset Offset from which downloaded prefix size needs to be calculated
-getFileDownloadedPrefixSize file_id:int32 offset:int53 = FileDownloadedPrefixSize;
-
-//@description Stops the downloading of a file. If a file has already been downloaded, does nothing @file_id Identifier of a file to stop downloading @only_if_pending Pass true to stop downloading only if it hasn't been started, i.e. request hasn't been sent to server
-cancelDownloadFile file_id:int32 only_if_pending:Bool = Ok;
-
-//@description Returns suggested name for saving a file in a given directory @file_id Identifier of the file @directory Directory in which the file is expected to be saved
-getSuggestedFileName file_id:int32 directory:string = Text;
-
-//@description Preliminary uploads a file to the cloud before sending it in a message, which can be useful for uploading of being recorded voice and video notes.
-//-In all other cases there is no need to preliminary upload a file. Updates updateFile will be used to notify about upload progress.
-//-The upload will not be completed until the file is sent in a message
-//@file File to upload
-//@file_type File type; pass null if unknown
-//@priority Priority of the upload (1-32). The higher the priority, the earlier the file will be uploaded. If the priorities of two files are equal, then the first one for which preliminaryUploadFile was called will be uploaded first
-preliminaryUploadFile file:InputFile file_type:FileType priority:int32 = File;
-
-//@description Stops the preliminary uploading of a file. Supported only for files uploaded by using preliminaryUploadFile @file_id Identifier of the file to stop uploading
-cancelPreliminaryUploadFile file_id:int32 = Ok;
-
-//@description Writes a part of a generated file. This method is intended to be used only if the application has no direct access to TDLib's file system, because it is usually slower than a direct write to the destination file
-//@generation_id The identifier of the generation process
-//@offset The offset from which to write the data to the file
-//@data The data to write
-writeGeneratedFilePart generation_id:int64 offset:int53 data:bytes = Ok;
-
-//@description Informs TDLib on a file generation progress
-//@generation_id The identifier of the generation process
-//@expected_size Expected size of the generated file, in bytes; 0 if unknown
-//@local_prefix_size The number of bytes already generated
-setFileGenerationProgress generation_id:int64 expected_size:int53 local_prefix_size:int53 = Ok;
-
-//@description Finishes the file generation
-//@generation_id The identifier of the generation process
-//@error If passed, the file generation has failed and must be terminated; pass null if the file generation succeeded
-finishFileGeneration generation_id:int64 error:error = Ok;
-
-//@description Reads a part of a file from the TDLib file cache and returns read bytes. This method is intended to be used only if the application has no direct access to TDLib's file system, because it is usually slower than a direct read from the file
-//@file_id Identifier of the file. The file must be located in the TDLib file cache
-//@offset The offset from which to read the file
-//@count Number of bytes to read. An error will be returned if there are not enough bytes available in the file from the specified position. Pass 0 to read all available data from the specified position
-readFilePart file_id:int32 offset:int53 count:int53 = FilePart;
-
-//@description Deletes a file from the TDLib file cache @file_id Identifier of the file to delete
-deleteFile file_id:int32 = Ok;
-
-//@description Adds a file from a message to the list of file downloads. Download progress and completion of the download will be notified through updateFile updates.
-//-If message database is used, the list of file downloads is persistent across application restarts. The downloading is independent of download using downloadFile, i.e. it continues if downloadFile is canceled or is used to download a part of the file
-//@file_id Identifier of the file to download
-//@chat_id Chat identifier of the message with the file
-//@message_id Message identifier
-//@priority Priority of the download (1-32). The higher the priority, the earlier the file will be downloaded. If the priorities of two files are equal, then the last one for which downloadFile/addFileToDownloads was called will be downloaded first
-addFileToDownloads file_id:int32 chat_id:int53 message_id:int53 priority:int32 = File;
-
-//@description Changes pause state of a file in the file download list
-//@file_id Identifier of the downloaded file
-//@is_paused Pass true if the download is paused
-toggleDownloadIsPaused file_id:int32 is_paused:Bool = Ok;
-
-//@description Changes pause state of all files in the file download list @are_paused Pass true to pause all downloads; pass false to unpause them
-toggleAllDownloadsArePaused are_paused:Bool = Ok;
-
-//@description Removes a file from the file download list @file_id Identifier of the downloaded file @delete_from_cache Pass true to delete the file from the TDLib file cache
-removeFileFromDownloads file_id:int32 delete_from_cache:Bool = Ok;
-
-//@description Removes all files from the file download list
-//@only_active Pass true to remove only active downloads, including paused
-//@only_completed Pass true to remove only completed downloads
-//@delete_from_cache Pass true to delete the file from the TDLib file cache
-removeAllFilesFromDownloads only_active:Bool only_completed:Bool delete_from_cache:Bool = Ok;
-
-//@description Searches for files in the file download list or recently downloaded files from the list
-//@query Query to search for; may be empty to return all downloaded files
-//@only_active Pass true to search only for active downloads, including paused
-//@only_completed Pass true to search only for completed downloads
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of files to be returned
-searchFileDownloads query:string only_active:Bool only_completed:Bool offset:string limit:int32 = FoundFileDownloads;
-
-
-//@description Application or reCAPTCHA verification has been completed. Can be called before authorization
-//@verification_id Unique identifier for the verification process as received from updateApplicationVerificationRequired or updateApplicationRecaptchaVerificationRequired
-//@token Play Integrity API token for the Android application, or secret from push notification for the iOS application for application verification, or reCAPTCHA token for reCAPTCHA verifications;
-//-pass an empty string to abort verification and receive error VERIFICATION_FAILED for the request
-setApplicationVerificationToken verification_id:int53 token:string = Ok;
-
-
-//@description Returns information about a file with messages exported from another application @message_file_head Beginning of the message file; up to 100 first lines
-getMessageFileType message_file_head:string = MessageFileType;
-
-//@description Returns a confirmation text to be shown to the user before starting message import
-//@chat_id Identifier of a chat to which the messages will be imported. It must be an identifier of a private chat with a mutual contact or an identifier of a supergroup chat with can_change_info member right
-getMessageImportConfirmationText chat_id:int53 = Text;
-
-//@description Imports messages exported from another app
-//@chat_id Identifier of a chat to which the messages will be imported. It must be an identifier of a private chat with a mutual contact or an identifier of a supergroup chat with can_change_info member right
-//@message_file File with messages to import. Only inputFileLocal and inputFileGenerated are supported. The file must not be previously uploaded
-//@attached_files Files used in the imported messages. Only inputFileLocal and inputFileGenerated are supported. The files must not be previously uploaded
-importMessages chat_id:int53 message_file:InputFile attached_files:vector<InputFile> = Ok;
-
-
-//@description Replaces current primary invite link for a chat with a new primary invite link. Available for basic groups, supergroups, and channels. Requires administrator privileges and can_invite_users right @chat_id Chat identifier
-replacePrimaryChatInviteLink chat_id:int53 = ChatInviteLink;
-
-//@description Creates a new invite link for a chat. Available for basic groups, supergroups, and channels. Requires administrator privileges and can_invite_users right in the chat
-//@chat_id Chat identifier
-//@name Invite link name; 0-32 characters
-//@expiration_date Point in time (Unix timestamp) when the link will expire; pass 0 if never
-//@member_limit The maximum number of chat members that can join the chat via the link simultaneously; 0-99999; pass 0 if not limited
-//@creates_join_request Pass true if users joining the chat via the link need to be approved by chat administrators. In this case, member_limit must be 0
-createChatInviteLink chat_id:int53 name:string expiration_date:int32 member_limit:int32 creates_join_request:Bool = ChatInviteLink;
-
-//@description Creates a new subscription invite link for a channel chat. Requires can_invite_users right in the chat
-//@chat_id Chat identifier
-//@name Invite link name; 0-32 characters
-//@subscription_pricing Information about subscription plan that will be applied to the users joining the chat via the link.
-//-Subscription period must be 2592000 in production environment, and 60 or 300 if Telegram test environment is used
-createChatSubscriptionInviteLink chat_id:int53 name:string subscription_pricing:starSubscriptionPricing = ChatInviteLink;
-
-//@description Edits a non-primary invite link for a chat. Available for basic groups, supergroups, and channels.
-//-If the link creates a subscription, then expiration_date, member_limit and creates_join_request must not be used.
-//-Requires administrator privileges and can_invite_users right in the chat for own links and owner privileges for other links
-//@chat_id Chat identifier
-//@invite_link Invite link to be edited
-//@name Invite link name; 0-32 characters
-//@expiration_date Point in time (Unix timestamp) when the link will expire; pass 0 if never
-//@member_limit The maximum number of chat members that can join the chat via the link simultaneously; 0-99999; pass 0 if not limited
-//@creates_join_request Pass true if users joining the chat via the link need to be approved by chat administrators. In this case, member_limit must be 0
-editChatInviteLink chat_id:int53 invite_link:string name:string expiration_date:int32 member_limit:int32 creates_join_request:Bool = ChatInviteLink;
-
-//@description Edits a subscription invite link for a channel chat. Requires can_invite_users right in the chat for own links and owner privileges for other links
-//@chat_id Chat identifier
-//@invite_link Invite link to be edited
-//@name Invite link name; 0-32 characters
-editChatSubscriptionInviteLink chat_id:int53 invite_link:string name:string = ChatInviteLink;
-
-//@description Returns information about an invite link. Requires administrator privileges and can_invite_users right in the chat to get own links and owner privileges to get other links
-//@chat_id Chat identifier
-//@invite_link Invite link to get
-getChatInviteLink chat_id:int53 invite_link:string = ChatInviteLink;
-
-//@description Returns the list of chat administrators with number of their invite links. Requires owner privileges in the chat @chat_id Chat identifier
-getChatInviteLinkCounts chat_id:int53 = ChatInviteLinkCounts;
-
-//@description Returns invite links for a chat created by specified administrator. Requires administrator privileges and can_invite_users right in the chat to get own links and owner privileges to get other links
-//@chat_id Chat identifier
-//@creator_user_id User identifier of a chat administrator. Must be an identifier of the current user for non-owner
-//@is_revoked Pass true if revoked links needs to be returned instead of active or expired
-//@offset_date Creation date of an invite link starting after which to return invite links; use 0 to get results from the beginning
-//@offset_invite_link Invite link starting after which to return invite links; use empty string to get results from the beginning
-//@limit The maximum number of invite links to return; up to 100
-getChatInviteLinks chat_id:int53 creator_user_id:int53 is_revoked:Bool offset_date:int32 offset_invite_link:string limit:int32 = ChatInviteLinks;
-
-//@description Returns chat members joined a chat via an invite link. Requires administrator privileges and can_invite_users right in the chat for own links and owner privileges for other links
-//@chat_id Chat identifier
-//@invite_link Invite link for which to return chat members
-//@only_with_expired_subscription Pass true if the link is a subscription link and only members with expired subscription must be returned
-//@offset_member A chat member from which to return next chat members; pass null to get results from the beginning
-//@limit The maximum number of chat members to return; up to 100
-getChatInviteLinkMembers chat_id:int53 invite_link:string only_with_expired_subscription:Bool offset_member:chatInviteLinkMember limit:int32 = ChatInviteLinkMembers;
-
-//@description Revokes invite link for a chat. Available for basic groups, supergroups, and channels. Requires administrator privileges and can_invite_users right in the chat for own links and owner privileges for other links.
-//-If a primary link is revoked, then additionally to the revoked link returns new primary link
-//@chat_id Chat identifier
-//@invite_link Invite link to be revoked
-revokeChatInviteLink chat_id:int53 invite_link:string = ChatInviteLinks;
-
-//@description Deletes revoked chat invite links. Requires administrator privileges and can_invite_users right in the chat for own links and owner privileges for other links @chat_id Chat identifier @invite_link Invite link to revoke
-deleteRevokedChatInviteLink chat_id:int53 invite_link:string = Ok;
-
-//@description Deletes all revoked chat invite links created by a given chat administrator. Requires administrator privileges and can_invite_users right in the chat for own links and owner privileges for other links
-//@chat_id Chat identifier
-//@creator_user_id User identifier of a chat administrator, which links will be deleted. Must be an identifier of the current user for non-owner
-deleteAllRevokedChatInviteLinks chat_id:int53 creator_user_id:int53 = Ok;
-
-//@description Checks the validity of an invite link for a chat and returns information about the corresponding chat @invite_link Invite link to be checked
-checkChatInviteLink invite_link:string = ChatInviteLinkInfo;
-
-//@description Uses an invite link to add the current user to the chat if possible. May return an error with a message "INVITE_REQUEST_SENT" if only a join request was created @invite_link Invite link to use
-joinChatByInviteLink invite_link:string = Chat;
-
-//@description Returns pending join requests in a chat
-//@chat_id Chat identifier
-//@invite_link Invite link for which to return join requests. If empty, all join requests will be returned. Requires administrator privileges and can_invite_users right in the chat for own links and owner privileges for other links
-//@query A query to search for in the first names, last names and usernames of the users to return
-//@offset_request A chat join request from which to return next requests; pass null to get results from the beginning
-//@limit The maximum number of requests to join the chat to return
-getChatJoinRequests chat_id:int53 invite_link:string query:string offset_request:chatJoinRequest limit:int32 = ChatJoinRequests;
-
-//@description Handles a pending join request in a chat @chat_id Chat identifier @user_id Identifier of the user that sent the request @approve Pass true to approve the request; pass false to decline it
-processChatJoinRequest chat_id:int53 user_id:int53 approve:Bool = Ok;
-
-//@description Handles all pending join requests for a given link in a chat
-//@chat_id Chat identifier
-//@invite_link Invite link for which to process join requests. If empty, all join requests will be processed. Requires administrator privileges and can_invite_users right in the chat for own links and owner privileges for other links
-//@approve Pass true to approve all requests; pass false to decline them
-processChatJoinRequests chat_id:int53 invite_link:string approve:Bool = Ok;
-
-
-//@description Creates a new call
-//@user_id Identifier of the user to be called
-//@protocol The call protocols supported by the application
-//@is_video Pass true to create a video call
-//@group_call_id Identifier of the group call to which the user will be added after exchanging private key via the call; pass 0 if none
-createCall user_id:int53 protocol:callProtocol is_video:Bool group_call_id:int32 = CallId;
-
-//@description Accepts an incoming call @call_id Call identifier @protocol The call protocols supported by the application
-acceptCall call_id:int32 protocol:callProtocol = Ok;
-
-//@description Sends call signaling data @call_id Call identifier @data The data
-sendCallSignalingData call_id:int32 data:bytes = Ok;
-
-//@description Discards a call
-//@call_id Call identifier
-//@is_disconnected Pass true if the user was disconnected
-//@duration The call duration, in seconds
-//@is_video Pass true if the call was a video call
-//@connection_id Identifier of the connection used during the call
-discardCall call_id:int32 is_disconnected:Bool duration:int32 is_video:Bool connection_id:int64 = Ok;
-
-//@description Sends a call rating
-//@call_id Call identifier
-//@rating Call rating; 1-5
-//@comment An optional user comment if the rating is less than 5
-//@problems List of the exact types of problems with the call, specified by the user
-sendCallRating call_id:int32 rating:int32 comment:string problems:vector<CallProblem> = Ok;
-
-//@description Sends debug information for a call to Telegram servers @call_id Call identifier @debug_information Debug information in application-specific format
-sendCallDebugInformation call_id:int32 debug_information:string = Ok;
-
-//@description Sends log file for a call to Telegram servers @call_id Call identifier @log_file Call log file. Only inputFileLocal and inputFileGenerated are supported
-sendCallLog call_id:int32 log_file:InputFile = Ok;
-
-
-//@description Returns the list of participant identifiers, on whose behalf a video chat in the chat can be joined @chat_id Chat identifier
-getVideoChatAvailableParticipants chat_id:int53 = MessageSenders;
-
-//@description Changes default participant identifier, on whose behalf a video chat in the chat will be joined @chat_id Chat identifier @default_participant_id Default group call participant identifier to join the video chats
-setVideoChatDefaultParticipant chat_id:int53 default_participant_id:MessageSender = Ok;
-
-//@description Creates a video chat (a group call bound to a chat). Available only for basic groups, supergroups and channels; requires can_manage_video_chats administrator right
-//@chat_id Identifier of a chat in which the video chat will be created
-//@title Group call title; if empty, chat title will be used
-//@start_date Point in time (Unix timestamp) when the group call is expected to be started by an administrator; 0 to start the video chat immediately. The date must be at least 10 seconds and at most 8 days in the future
-//@is_rtmp_stream Pass true to create an RTMP stream instead of an ordinary video chat
-createVideoChat chat_id:int53 title:string start_date:int32 is_rtmp_stream:Bool = GroupCallId;
-
-//@description Creates a group call from a one-to-one call @call_id Call identifier
-createGroupCall call_id:int32 = Ok;
-
-//@description Returns RTMP URL for streaming to the chat; requires can_manage_video_chats administrator right @chat_id Chat identifier
-getVideoChatRtmpUrl chat_id:int53 = RtmpUrl;
-
-//@description Replaces the current RTMP URL for streaming to the chat; requires owner privileges @chat_id Chat identifier
-replaceVideoChatRtmpUrl chat_id:int53 = RtmpUrl;
-
-//@description Returns information about a group call @group_call_id Group call identifier
-getGroupCall group_call_id:int32 = GroupCall;
-
-//@description Starts a scheduled group call @group_call_id Group call identifier
-startScheduledGroupCall group_call_id:int32 = Ok;
-
-//@description Toggles whether the current user will receive a notification when the group call starts; scheduled group calls only
-//@group_call_id Group call identifier
-//@enabled_start_notification New value of the enabled_start_notification setting
-toggleGroupCallEnabledStartNotification group_call_id:int32 enabled_start_notification:Bool = Ok;
-
-//@description Joins an active group call. Returns join response payload for tgcalls
-//@group_call_id Group call identifier
-//@participant_id Identifier of a group call participant, which will be used to join the call; pass null to join as self; video chats only
-//@audio_source_id Caller audio channel synchronization source identifier; received from tgcalls
-//@payload Group call join payload; received from tgcalls
-//@is_muted Pass true to join the call with muted microphone
-//@is_my_video_enabled Pass true if the user's video is enabled
-//@invite_hash If non-empty, invite hash to be used to join the group call without being muted by administrators
-//@key_fingerprint Fingerprint of the encryption key for E2E group calls not bound to a chat; pass 0 for voice chats
-joinGroupCall group_call_id:int32 participant_id:MessageSender audio_source_id:int32 payload:string is_muted:Bool is_my_video_enabled:Bool invite_hash:string key_fingerprint:int64 = Text;
-
-//@description Starts screen sharing in a joined group call. Returns join response payload for tgcalls
-//@group_call_id Group call identifier
-//@audio_source_id Screen sharing audio channel synchronization source identifier; received from tgcalls
-//@payload Group call join payload; received from tgcalls
-startGroupCallScreenSharing group_call_id:int32 audio_source_id:int32 payload:string = Text;
-
-//@description Pauses or unpauses screen sharing in a joined group call @group_call_id Group call identifier @is_paused Pass true to pause screen sharing; pass false to unpause it
-toggleGroupCallScreenSharingIsPaused group_call_id:int32 is_paused:Bool = Ok;
-
-//@description Ends screen sharing in a joined group call @group_call_id Group call identifier
-endGroupCallScreenSharing group_call_id:int32 = Ok;
-
-//@description Sets group call title. Requires groupCall.can_be_managed group call flag @group_call_id Group call identifier @title New group call title; 1-64 characters
-setGroupCallTitle group_call_id:int32 title:string = Ok;
-
-//@description Toggles whether new participants of a group call can be unmuted only by administrators of the group call. Requires groupCall.can_toggle_mute_new_participants group call flag
-//@group_call_id Group call identifier
-//@mute_new_participants New value of the mute_new_participants setting
-toggleGroupCallMuteNewParticipants group_call_id:int32 mute_new_participants:Bool = Ok;
-
-//@description Invites users to an active group call. Sends a service message of type messageInviteVideoChatParticipants for video chats
-//@group_call_id Group call identifier
-//@user_ids User identifiers. At most 10 users can be invited simultaneously
-inviteGroupCallParticipants group_call_id:int32 user_ids:vector<int53> = Ok;
-
-//@description Returns invite link to a video chat in a public chat
-//@group_call_id Group call identifier
-//@can_self_unmute Pass true if the invite link needs to contain an invite hash, passing which to joinGroupCall would allow the invited user to unmute themselves. Requires groupCall.can_be_managed group call flag
-getGroupCallInviteLink group_call_id:int32 can_self_unmute:Bool = HttpUrl;
-
-//@description Revokes invite link for a group call. Requires groupCall.can_be_managed group call flag @group_call_id Group call identifier
-revokeGroupCallInviteLink group_call_id:int32 = Ok;
-
-//@description Starts recording of an active group call. Requires groupCall.can_be_managed group call flag
-//@group_call_id Group call identifier
-//@title Group call recording title; 0-64 characters
-//@record_video Pass true to record a video file instead of an audio file
-//@use_portrait_orientation Pass true to use portrait orientation for video instead of landscape one
-startGroupCallRecording group_call_id:int32 title:string record_video:Bool use_portrait_orientation:Bool = Ok;
-
-//@description Ends recording of an active group call. Requires groupCall.can_be_managed group call flag @group_call_id Group call identifier
-endGroupCallRecording group_call_id:int32 = Ok;
-
-//@description Toggles whether current user's video is paused @group_call_id Group call identifier @is_my_video_paused Pass true if the current user's video is paused
-toggleGroupCallIsMyVideoPaused group_call_id:int32 is_my_video_paused:Bool = Ok;
-
-//@description Toggles whether current user's video is enabled @group_call_id Group call identifier @is_my_video_enabled Pass true if the current user's video is enabled
-toggleGroupCallIsMyVideoEnabled group_call_id:int32 is_my_video_enabled:Bool = Ok;
-
-//@description Informs TDLib that speaking state of a participant of an active group has changed
-//@group_call_id Group call identifier
-//@audio_source Group call participant's synchronization audio source identifier, or 0 for the current user
-//@is_speaking Pass true if the user is speaking
-setGroupCallParticipantIsSpeaking group_call_id:int32 audio_source:int32 is_speaking:Bool = Ok;
-
-//@description Toggles whether a participant of an active group call is muted, unmuted, or allowed to unmute themselves
-//@group_call_id Group call identifier
-//@participant_id Participant identifier
-//@is_muted Pass true to mute the user; pass false to unmute them
-toggleGroupCallParticipantIsMuted group_call_id:int32 participant_id:MessageSender is_muted:Bool = Ok;
-
-//@description Changes volume level of a participant of an active group call. If the current user can manage the group call, then the participant's volume level will be changed for all users with the default volume level
-//@group_call_id Group call identifier
-//@participant_id Participant identifier
-//@volume_level New participant's volume level; 1-20000 in hundreds of percents
-setGroupCallParticipantVolumeLevel group_call_id:int32 participant_id:MessageSender volume_level:int32 = Ok;
-
-//@description Toggles whether a group call participant hand is rased
-//@group_call_id Group call identifier
-//@participant_id Participant identifier
-//@is_hand_raised Pass true if the user's hand needs to be raised. Only self hand can be raised. Requires groupCall.can_be_managed group call flag to lower other's hand
-toggleGroupCallParticipantIsHandRaised group_call_id:int32 participant_id:MessageSender is_hand_raised:Bool = Ok;
-
-//@description Loads more participants of a group call. The loaded participants will be received through updates. Use the field groupCall.loaded_all_participants to check whether all participants have already been loaded
-//@group_call_id Group call identifier. The group call must be previously received through getGroupCall and must be joined or being joined
-//@limit The maximum number of participants to load; up to 100
-loadGroupCallParticipants group_call_id:int32 limit:int32 = Ok;
-
-//@description Leaves a group call @group_call_id Group call identifier
-leaveGroupCall group_call_id:int32 = Ok;
-
-//@description Ends a group call. Requires groupCall.can_be_managed @group_call_id Group call identifier
-endGroupCall group_call_id:int32 = Ok;
-
-//@description Returns information about available group call streams @group_call_id Group call identifier
-getGroupCallStreams group_call_id:int32 = GroupCallStreams;
-
-//@description Returns a file with a segment of a group call stream in a modified OGG format for audio or MPEG-4 format for video
-//@group_call_id Group call identifier
-//@time_offset Point in time when the stream segment begins; Unix timestamp in milliseconds
-//@scale Segment duration scale; 0-1. Segment's duration is 1000/(2**scale) milliseconds
-//@channel_id Identifier of an audio/video channel to get as received from tgcalls
-//@video_quality Video quality as received from tgcalls; pass null to get the worst available quality
-getGroupCallStreamSegment group_call_id:int32 time_offset:int53 scale:int32 channel_id:int32 video_quality:GroupCallVideoQuality = FilePart;
-
-
-//@description Changes the block list of a message sender. Currently, only users and supergroup chats can be blocked
-//@sender_id Identifier of a message sender to block/unblock
-//@block_list New block list for the message sender; pass null to unblock the message sender
-setMessageSenderBlockList sender_id:MessageSender block_list:BlockList = Ok;
-
-//@description Blocks an original sender of a message in the Replies chat
-//@message_id The identifier of an incoming message in the Replies chat
-//@delete_message Pass true to delete the message
-//@delete_all_messages Pass true to delete all messages from the same sender
-//@report_spam Pass true to report the sender to the Telegram moderators
-blockMessageSenderFromReplies message_id:int53 delete_message:Bool delete_all_messages:Bool report_spam:Bool = Ok;
-
-//@description Returns users and chats that were blocked by the current user
-//@block_list Block list from which to return users
-//@offset Number of users and chats to skip in the result; must be non-negative
-//@limit The maximum number of users and chats to return; up to 100
-getBlockedMessageSenders block_list:BlockList offset:int32 limit:int32 = MessageSenders;
-
-
-//@description Adds a user to the contact list or edits an existing contact by their user identifier
-//@contact The contact to add or edit; phone number may be empty and needs to be specified only if known, vCard is ignored
-//@share_phone_number Pass true to share the current user's phone number with the new contact. A corresponding rule to userPrivacySettingShowPhoneNumber will be added if needed.
-//-Use the field userFullInfo.need_phone_number_privacy_exception to check whether the current user needs to be asked to share their phone number
-addContact contact:contact share_phone_number:Bool = Ok;
-
-//@description Adds new contacts or edits existing contacts by their phone numbers; contacts' user identifiers are ignored @contacts The list of contacts to import or edit; contacts' vCard are ignored and are not imported
-importContacts contacts:vector<contact> = ImportedContacts;
-
-//@description Returns all contacts of the user
-getContacts = Users;
-
-//@description Searches for the specified query in the first names, last names and usernames of the known user contacts
-//@query Query to search for; may be empty to return all contacts
-//@limit The maximum number of users to be returned
-searchContacts query:string limit:int32 = Users;
-
-//@description Removes users from the contact list @user_ids Identifiers of users to be deleted
-removeContacts user_ids:vector<int53> = Ok;
-
-//@description Returns the total number of imported contacts
-getImportedContactCount = Count;
-
-//@description Changes imported contacts using the list of contacts saved on the device. Imports newly added contacts and, if at least the file database is enabled, deletes recently deleted contacts.
-//-Query result depends on the result of the previous query, so only one query is possible at the same time
-//@contacts The new list of contacts, contact's vCard are ignored and are not imported
-changeImportedContacts contacts:vector<contact> = ImportedContacts;
-
-//@description Clears all imported contacts, contact list remains unchanged
-clearImportedContacts = Ok;
-
-//@description Changes the list of close friends of the current user @user_ids User identifiers of close friends; the users must be contacts of the current user
-setCloseFriends user_ids:vector<int53> = Ok;
-
-//@description Returns all close friends of the current user
-getCloseFriends = Users;
-
-//@description Changes a personal profile photo of a contact user @user_id User identifier @photo Profile photo to set; pass null to delete the photo; inputChatPhotoPrevious isn't supported in this function
-setUserPersonalProfilePhoto user_id:int53 photo:InputChatPhoto = Ok;
-
-//@description Suggests a profile photo to another regular user with common messages and allowing non-paid messages
-//@user_id User identifier
-//@photo Profile photo to suggest; inputChatPhotoPrevious isn't supported in this function
-suggestUserProfilePhoto user_id:int53 photo:InputChatPhoto = Ok;
-
-//@description Toggles whether the bot can manage emoji status of the current user @bot_user_id User identifier of the bot @can_manage_emoji_status Pass true if the bot is allowed to change emoji status of the user; pass false otherwise
-toggleBotCanManageEmojiStatus bot_user_id:int53 can_manage_emoji_status:Bool = Ok;
-
-//@description Changes the emoji status of a user; for bots only @user_id Identifier of the user @emoji_status New emoji status; pass null to switch to the default badge
-setUserEmojiStatus user_id:int53 emoji_status:emojiStatus = Ok;
-
-
-//@description Searches a user by their phone number. Returns a 404 error if the user can't be found
-//@phone_number Phone number to search for
-//@only_local Pass true to get only locally available information without sending network requests
-searchUserByPhoneNumber phone_number:string only_local:Bool = User;
-
-//@description Shares the phone number of the current user with a mutual contact. Supposed to be called when the user clicks on chatActionBarSharePhoneNumber @user_id Identifier of the user with whom to share the phone number. The user must be a mutual contact
-sharePhoneNumber user_id:int53 = Ok;
-
-
-//@description Returns the profile photos of a user. Personal and public photo aren't returned @user_id User identifier @offset The number of photos to skip; must be non-negative @limit The maximum number of photos to be returned; up to 100
-getUserProfilePhotos user_id:int53 offset:int32 limit:int32 = ChatPhotos;
-
-
-//@description Returns outline of a sticker. This is an offline method. Returns a 404 error if the outline isn't known
-//@sticker_file_id File identifier of the sticker
-//@for_animated_emoji Pass true to get the outline scaled for animated emoji
-//@for_clicked_animated_emoji_message Pass true to get the outline scaled for clicked animated emoji message
-getStickerOutline sticker_file_id:int32 for_animated_emoji:Bool for_clicked_animated_emoji_message:Bool = Outline;
-
-//@description Returns stickers from the installed sticker sets that correspond to any of the given emoji or can be found by sticker-specific keywords. If the query is non-empty, then favorite, recently used or trending stickers may also be returned
-//@sticker_type Type of the stickers to return
-//@query Search query; a space-separated list of emojis or a keyword prefix. If empty, returns all known installed stickers
-//@limit The maximum number of stickers to be returned
-//@chat_id Chat identifier for which to return stickers. Available custom emoji stickers may be different for different chats
-getStickers sticker_type:StickerType query:string limit:int32 chat_id:int53 = Stickers;
-
-//@description Returns unique emoji that correspond to stickers to be found by the getStickers(sticker_type, query, 1000000, chat_id)
-//@sticker_type Type of the stickers to search for
-//@query Search query
-//@chat_id Chat identifier for which to find stickers
-//@return_only_main_emoji Pass true if only main emoji for each found sticker must be included in the result
-getAllStickerEmojis sticker_type:StickerType query:string chat_id:int53 return_only_main_emoji:Bool = Emojis;
-
-//@description Searches for stickers from public sticker sets that correspond to any of the given emoji
-//@sticker_type Type of the stickers to return
-//@emojis Space-separated list of emojis to search for
-//@query Query to search for; may be empty to search for emoji only
-//@input_language_codes List of possible IETF language tags of the user's input language; may be empty if unknown
-//@offset The offset from which to return the stickers; must be non-negative
-//@limit The maximum number of stickers to be returned; 0-100
-searchStickers sticker_type:StickerType emojis:string query:string input_language_codes:vector<string> offset:int32 limit:int32 = Stickers;
-
-//@description Returns greeting stickers from regular sticker sets that can be used for the start page of other users
-getGreetingStickers = Stickers;
-
-//@description Returns premium stickers from regular sticker sets @limit The maximum number of stickers to be returned; 0-100
-getPremiumStickers limit:int32 = Stickers;
-
-//@description Returns a list of installed sticker sets @sticker_type Type of the sticker sets to return
-getInstalledStickerSets sticker_type:StickerType = StickerSets;
-
-//@description Returns a list of archived sticker sets
-//@sticker_type Type of the sticker sets to return
-//@offset_sticker_set_id Identifier of the sticker set from which to return the result; use 0 to get results from the beginning
-//@limit The maximum number of sticker sets to return; up to 100
-getArchivedStickerSets sticker_type:StickerType offset_sticker_set_id:int64 limit:int32 = StickerSets;
-
-//@description Returns a list of trending sticker sets. For optimal performance, the number of returned sticker sets is chosen by TDLib
-//@sticker_type Type of the sticker sets to return
-//@offset The offset from which to return the sticker sets; must be non-negative
-//@limit The maximum number of sticker sets to be returned; up to 100. For optimal performance, the number of returned sticker sets is chosen by TDLib and can be smaller than the specified limit, even if the end of the list has not been reached
-getTrendingStickerSets sticker_type:StickerType offset:int32 limit:int32 = TrendingStickerSets;
-
-//@description Returns a list of sticker sets attached to a file, including regular, mask, and emoji sticker sets. Currently, only animations, photos, and videos can have attached sticker sets @file_id File identifier
-getAttachedStickerSets file_id:int32 = StickerSets;
-
-//@description Returns information about a sticker set by its identifier @set_id Identifier of the sticker set
-getStickerSet set_id:int64 = StickerSet;
-
-//@description Returns name of a sticker set by its identifier @set_id Identifier of the sticker set
-getStickerSetName set_id:int64 = Text;
-
-//@description Searches for a sticker set by its name @name Name of the sticker set @ignore_cache Pass true to ignore local cache of sticker sets and always send a network request
-searchStickerSet name:string ignore_cache:Bool = StickerSet;
-
-//@description Searches for installed sticker sets by looking for specified query in their title and name @sticker_type Type of the sticker sets to search for @query Query to search for @limit The maximum number of sticker sets to return
-searchInstalledStickerSets sticker_type:StickerType query:string limit:int32 = StickerSets;
-
-//@description Searches for sticker sets by looking for specified query in their title and name. Excludes installed sticker sets from the results
-//@sticker_type Type of the sticker sets to return
-//@query Query to search for
-searchStickerSets sticker_type:StickerType query:string = StickerSets;
-
-//@description Installs/uninstalls or activates/archives a sticker set @set_id Identifier of the sticker set @is_installed The new value of is_installed @is_archived The new value of is_archived. A sticker set can't be installed and archived simultaneously
-changeStickerSet set_id:int64 is_installed:Bool is_archived:Bool = Ok;
-
-//@description Informs the server that some trending sticker sets have been viewed by the user @sticker_set_ids Identifiers of viewed trending sticker sets
-viewTrendingStickerSets sticker_set_ids:vector<int64> = Ok;
-
-//@description Changes the order of installed sticker sets @sticker_type Type of the sticker sets to reorder @sticker_set_ids Identifiers of installed sticker sets in the new correct order
-reorderInstalledStickerSets sticker_type:StickerType sticker_set_ids:vector<int64> = Ok;
-
-//@description Returns a list of recently used stickers @is_attached Pass true to return stickers and masks that were recently attached to photos or video files; pass false to return recently sent stickers
-getRecentStickers is_attached:Bool = Stickers;
-
-//@description Manually adds a new sticker to the list of recently used stickers. The new sticker is added to the top of the list. If the sticker was already in the list, it is removed from the list first.
-//-Only stickers belonging to a sticker set or in WEBP or WEBM format can be added to this list. Emoji stickers can't be added to recent stickers
-//@is_attached Pass true to add the sticker to the list of stickers recently attached to photo or video files; pass false to add the sticker to the list of recently sent stickers
-//@sticker Sticker file to add
-addRecentSticker is_attached:Bool sticker:InputFile = Stickers;
-
-//@description Removes a sticker from the list of recently used stickers @is_attached Pass true to remove the sticker from the list of stickers recently attached to photo or video files; pass false to remove the sticker from the list of recently sent stickers @sticker Sticker file to delete
-removeRecentSticker is_attached:Bool sticker:InputFile = Ok;
-
-//@description Clears the list of recently used stickers @is_attached Pass true to clear the list of stickers recently attached to photo or video files; pass false to clear the list of recently sent stickers
-clearRecentStickers is_attached:Bool = Ok;
-
-//@description Returns favorite stickers
-getFavoriteStickers = Stickers;
-
-//@description Adds a new sticker to the list of favorite stickers. The new sticker is added to the top of the list. If the sticker was already in the list, it is removed from the list first.
-//-Only stickers belonging to a sticker set or in WEBP or WEBM format can be added to this list. Emoji stickers can't be added to favorite stickers
-//@sticker Sticker file to add
-addFavoriteSticker sticker:InputFile = Ok;
-
-//@description Removes a sticker from the list of favorite stickers @sticker Sticker file to delete from the list
-removeFavoriteSticker sticker:InputFile = Ok;
-
-//@description Returns emoji corresponding to a sticker. The list is only for informational purposes, because a sticker is always sent with a fixed emoji from the corresponding Sticker object @sticker Sticker file identifier
-getStickerEmojis sticker:InputFile = Emojis;
-
-//@description Searches for emojis by keywords. Supported only if the file database is enabled. Order of results is unspecified
-//@text Text to search for
-//@input_language_codes List of possible IETF language tags of the user's input language; may be empty if unknown
-searchEmojis text:string input_language_codes:vector<string> = EmojiKeywords;
-
-//@description Return emojis matching the keyword. Supported only if the file database is enabled. Order of results is unspecified
-//@text Text to search for
-//@input_language_codes List of possible IETF language tags of the user's input language; may be empty if unknown
-getKeywordEmojis text:string input_language_codes:vector<string> = Emojis;
-
-//@description Returns available emoji categories @type Type of emoji categories to return; pass null to get default emoji categories
-getEmojiCategories type:EmojiCategoryType = EmojiCategories;
-
-//@description Returns an animated emoji corresponding to a given emoji. Returns a 404 error if the emoji has no animated emoji @emoji The emoji
-getAnimatedEmoji emoji:string = AnimatedEmoji;
-
-//@description Returns an HTTP URL which can be used to automatically log in to the translation platform and suggest new emoji replacements. The URL will be valid for 30 seconds after generation
-//@language_code Language code for which the emoji replacements will be suggested
-getEmojiSuggestionsUrl language_code:string = HttpUrl;
-
-//@description Returns the list of custom emoji stickers by their identifiers. Stickers are returned in arbitrary order. Only found stickers are returned
-//@custom_emoji_ids Identifiers of custom emoji stickers. At most 200 custom emoji stickers can be received simultaneously
-getCustomEmojiStickers custom_emoji_ids:vector<int64> = Stickers;
-
-//@description Returns default list of custom emoji stickers for placing on a chat photo
-getDefaultChatPhotoCustomEmojiStickers = Stickers;
-
-//@description Returns default list of custom emoji stickers for placing on a profile photo
-getDefaultProfilePhotoCustomEmojiStickers = Stickers;
-
-//@description Returns default list of custom emoji stickers for reply background
-getDefaultBackgroundCustomEmojiStickers = Stickers;
-
-
-//@description Returns saved animations
-getSavedAnimations = Animations;
-
-//@description Manually adds a new animation to the list of saved animations. The new animation is added to the beginning of the list. If the animation was already in the list, it is removed first.
-//-Only non-secret video animations with MIME type "video/mp4" can be added to the list
-//@animation The animation file to be added. Only animations known to the server (i.e., successfully sent via a message) can be added to the list
-addSavedAnimation animation:InputFile = Ok;
-
-//@description Removes an animation from the list of saved animations @animation Animation file to be removed
-removeSavedAnimation animation:InputFile = Ok;
-
-
-//@description Returns up to 20 recently used inline bots in the order of their last usage
-getRecentInlineBots = Users;
-
-//@description Returns the list of bots owned by the current user
-getOwnedBots = Users;
-
-
-//@description Searches for recently used hashtags by their prefix @prefix Hashtag prefix to search for @limit The maximum number of hashtags to be returned
-searchHashtags prefix:string limit:int32 = Hashtags;
-
-//@description Removes a hashtag from the list of recently used hashtags @hashtag Hashtag to delete
-removeRecentHashtag hashtag:string = Ok;
-
-
-//@description Returns a link preview by the text of a message. Do not call this function too often. Returns a 404 error if the text has no link preview
-//@text Message text with formatting
-//@link_preview_options Options to be used for generation of the link preview; pass null to use default link preview options
-getLinkPreview text:formattedText link_preview_options:linkPreviewOptions = LinkPreview;
-
-//@description Returns an instant view version of a web page if available. This is an offline method if only_local is true. Returns a 404 error if the web page has no instant view page
-//@url The web page URL
-//@only_local Pass true to get only locally available information without sending network requests
-getWebPageInstantView url:string only_local:Bool = WebPageInstantView;
-
-
-//@description Changes a profile photo for the current user
-//@photo Profile photo to set
-//@is_public Pass true to set the public photo, which will be visible even the main photo is hidden by privacy settings
-setProfilePhoto photo:InputChatPhoto is_public:Bool = Ok;
-
-//@description Deletes a profile photo @profile_photo_id Identifier of the profile photo to delete
-deleteProfilePhoto profile_photo_id:int64 = Ok;
-
-//@description Changes accent color and background custom emoji for the current user; for Telegram Premium users only
-//@accent_color_id Identifier of the accent color to use
-//@background_custom_emoji_id Identifier of a custom emoji to be shown on the reply header and link preview background; 0 if none
-setAccentColor accent_color_id:int32 background_custom_emoji_id:int64 = Ok;
-
-//@description Changes accent color and background custom emoji for profile of the current user; for Telegram Premium users only
-//@profile_accent_color_id Identifier of the accent color to use for profile; pass -1 if none
-//@profile_background_custom_emoji_id Identifier of a custom emoji to be shown on the user's profile photo background; 0 if none
-setProfileAccentColor profile_accent_color_id:int32 profile_background_custom_emoji_id:int64 = Ok;
-
-//@description Changes the first and last name of the current user @first_name The new value of the first name for the current user; 1-64 characters @last_name The new value of the optional last name for the current user; 0-64 characters
-setName first_name:string last_name:string = Ok;
-
-//@description Changes the bio of the current user @bio The new value of the user bio; 0-getOption("bio_length_max") characters without line feeds
-setBio bio:string = Ok;
-
-//@description Changes the editable username of the current user
-//@username The new value of the username. Use an empty string to remove the username. The username can't be completely removed if there is another active or disabled username
-setUsername username:string = Ok;
-
-//@description Changes active state for a username of the current user. The editable username can't be disabled. May return an error with a message "USERNAMES_ACTIVE_TOO_MUCH" if the maximum number of active usernames has been reached
-//@username The username to change
-//@is_active Pass true to activate the username; pass false to disable it
-toggleUsernameIsActive username:string is_active:Bool = Ok;
-
-//@description Changes order of active usernames of the current user @usernames The new order of active usernames. All currently active usernames must be specified
-reorderActiveUsernames usernames:vector<string> = Ok;
-
-//@description Changes the birthdate of the current user @birthdate The new value of the current user's birthdate; pass null to remove the birthdate
-setBirthdate birthdate:birthdate = Ok;
-
-//@description Changes the personal chat of the current user @chat_id Identifier of the new personal chat; pass 0 to remove the chat. Use getSuitablePersonalChats to get suitable chats
-setPersonalChat chat_id:int53 = Ok;
-
-//@description Changes the emoji status of the current user; for Telegram Premium users only @emoji_status New emoji status; pass null to switch to the default badge
-setEmojiStatus emoji_status:emojiStatus = Ok;
-
-//@description Toggles whether the current user has sponsored messages enabled. The setting has no effect for users without Telegram Premium for which sponsored messages are always enabled
-//@has_sponsored_messages_enabled Pass true to enable sponsored messages for the current user; false to disable them
-toggleHasSponsoredMessagesEnabled has_sponsored_messages_enabled:Bool = Ok;
-
-//@description Changes the business location of the current user. Requires Telegram Business subscription @location The new location of the business; pass null to remove the location
-setBusinessLocation location:businessLocation = Ok;
-
-//@description Changes the business opening hours of the current user. Requires Telegram Business subscription
-//@opening_hours The new opening hours of the business; pass null to remove the opening hours; up to 28 time intervals can be specified
-setBusinessOpeningHours opening_hours:businessOpeningHours = Ok;
-
-//@description Changes the business greeting message settings of the current user. Requires Telegram Business subscription @greeting_message_settings The new settings for the greeting message of the business; pass null to disable the greeting message
-setBusinessGreetingMessageSettings greeting_message_settings:businessGreetingMessageSettings = Ok;
-
-//@description Changes the business away message settings of the current user. Requires Telegram Business subscription @away_message_settings The new settings for the away message of the business; pass null to disable the away message
-setBusinessAwayMessageSettings away_message_settings:businessAwayMessageSettings = Ok;
-
-//@description Changes the business start page of the current user. Requires Telegram Business subscription @start_page The new start page of the business; pass null to remove custom start page
-setBusinessStartPage start_page:inputBusinessStartPage = Ok;
-
-
-//@description Sends a code to the specified phone number. Aborts previous phone number verification if there was one. On success, returns information about the sent code
-//@phone_number The phone number, in international format
-//@settings Settings for the authentication of the user's phone number; pass null to use default settings
-//@type Type of the request for which the code is sent
-sendPhoneNumberCode phone_number:string settings:phoneNumberAuthenticationSettings type:PhoneNumberCodeType = AuthenticationCodeInfo;
-
-//@description Sends Firebase Authentication SMS to the specified phone number. Works only when received a code of the type authenticationCodeTypeFirebaseAndroid or authenticationCodeTypeFirebaseIos
-//@token Play Integrity API or SafetyNet Attestation API token for the Android application, or secret from push notification for the iOS application
-sendPhoneNumberFirebaseSms token:string = Ok;
-
-//@description Reports that authentication code wasn't delivered via SMS to the specified phone number; for official mobile applications only @mobile_network_code Current mobile network code
-reportPhoneNumberCodeMissing mobile_network_code:string = Ok;
-
-//@description Resends the authentication code sent to a phone number. Works only if the previously received authenticationCodeInfo next_code_type was not null and the server-specified timeout has passed
-//@reason Reason of code resending; pass null if unknown
-resendPhoneNumberCode reason:ResendCodeReason = AuthenticationCodeInfo;
-
-//@description Check the authentication code and completes the request for which the code was sent if appropriate @code Authentication code to check
-checkPhoneNumberCode code:string = Ok;
-
-
-//@description Returns the business bot that is connected to the current user account. Returns a 404 error if there is no connected bot
-getBusinessConnectedBot = BusinessConnectedBot;
-
-//@description Adds or changes business bot that is connected to the current user account @bot Connection settings for the bot
-setBusinessConnectedBot bot:businessConnectedBot = Ok;
-
-//@description Deletes the business bot that is connected to the current user account @bot_user_id Unique user identifier for the bot
-deleteBusinessConnectedBot bot_user_id:int53 = Ok;
-
-//@description Pauses or resumes the connected business bot in a specific chat @chat_id Chat identifier @is_paused Pass true to pause the connected bot in the chat; pass false to resume the bot
-toggleBusinessConnectedBotChatIsPaused chat_id:int53 is_paused:Bool = Ok;
-
-//@description Removes the connected business bot from a specific chat by adding the chat to businessRecipients.excluded_chat_ids @chat_id Chat identifier
-removeBusinessConnectedBotFromChat chat_id:int53 = Ok;
-
-
-//@description Returns business chat links created for the current account
-getBusinessChatLinks = BusinessChatLinks;
-
-//@description Creates a business chat link for the current account. Requires Telegram Business subscription. There can be up to getOption("business_chat_link_count_max") links created. Returns the created link
-//@link_info Information about the link to create
-createBusinessChatLink link_info:inputBusinessChatLink = BusinessChatLink;
-
-//@description Edits a business chat link of the current account. Requires Telegram Business subscription. Returns the edited link
-//@link The link to edit
-//@link_info New description of the link
-editBusinessChatLink link:string link_info:inputBusinessChatLink = BusinessChatLink;
-
-//@description Deletes a business chat link of the current account @link The link to delete
-deleteBusinessChatLink link:string = Ok;
-
-//@description Returns information about a business chat link @link_name Name of the link
-getBusinessChatLinkInfo link_name:string = BusinessChatLinkInfo;
-
-
-//@description Returns an HTTPS link, which can be used to get information about the current user
-getUserLink = UserLink;
-
-//@description Searches a user by a token from the user's link @token Token to search for
-searchUserByToken token:string = User;
-
-
-//@description Sets the list of commands supported by the bot for the given user scope and language; for bots only
-//@scope The scope to which the commands are relevant; pass null to change commands in the default bot command scope
-//@language_code A two-letter ISO 639-1 language code. If empty, the commands will be applied to all users from the given scope, for which language there are no dedicated commands
-//@commands List of the bot's commands
-setCommands scope:BotCommandScope language_code:string commands:vector<botCommand> = Ok;
-
-//@description Deletes commands supported by the bot for the given user scope and language; for bots only
-//@scope The scope to which the commands are relevant; pass null to delete commands in the default bot command scope
-//@language_code A two-letter ISO 639-1 language code or an empty string
-deleteCommands scope:BotCommandScope language_code:string = Ok;
-
-//@description Returns the list of commands supported by the bot for the given user scope and language; for bots only
-//@scope The scope to which the commands are relevant; pass null to get commands in the default bot command scope
-//@language_code A two-letter ISO 639-1 language code or an empty string
-getCommands scope:BotCommandScope language_code:string = BotCommands;
-
-//@description Sets menu button for the given user or for all users; for bots only
-//@user_id Identifier of the user or 0 to set menu button for all users
-//@menu_button New menu button
-setMenuButton user_id:int53 menu_button:botMenuButton = Ok;
-
-//@description Returns menu button set by the bot for the given user; for bots only @user_id Identifier of the user or 0 to get the default menu button
-getMenuButton user_id:int53 = BotMenuButton;
-
-//@description Sets default administrator rights for adding the bot to basic group and supergroup chats; for bots only @default_group_administrator_rights Default administrator rights for adding the bot to basic group and supergroup chats; pass null to remove default rights
-setDefaultGroupAdministratorRights default_group_administrator_rights:chatAdministratorRights = Ok;
-
-//@description Sets default administrator rights for adding the bot to channel chats; for bots only @default_channel_administrator_rights Default administrator rights for adding the bot to channels; pass null to remove default rights
-setDefaultChannelAdministratorRights default_channel_administrator_rights:chatAdministratorRights = Ok;
-
-
-//@description Checks whether the specified bot can send messages to the user. Returns a 404 error if can't and the access can be granted by call to allowBotToSendMessages @bot_user_id Identifier of the target bot
-canBotSendMessages bot_user_id:int53 = Ok;
-
-//@description Allows the specified bot to send messages to the user @bot_user_id Identifier of the target bot
-allowBotToSendMessages bot_user_id:int53 = Ok;
-
-//@description Sends a custom request from a Web App
-//@bot_user_id Identifier of the bot
-//@method The method name
-//@parameters JSON-serialized method parameters
-sendWebAppCustomRequest bot_user_id:int53 method:string parameters:string = CustomRequestResult;
-
-
-//@description Returns the list of media previews of a bot @bot_user_id Identifier of the target bot. The bot must have the main Web App
-getBotMediaPreviews bot_user_id:int53 = BotMediaPreviews;
-
-//@description Returns the list of media previews for the given language and the list of languages for which the bot has dedicated previews
-//@bot_user_id Identifier of the target bot. The bot must be owned and must have the main Web App
-//@language_code A two-letter ISO 639-1 language code for which to get previews. If empty, then default previews are returned
-getBotMediaPreviewInfo bot_user_id:int53 language_code:string = BotMediaPreviewInfo;
-
-//@description Adds a new media preview to the beginning of the list of media previews of a bot. Returns the added preview after addition is completed server-side. The total number of previews must not exceed getOption("bot_media_preview_count_max") for the given language
-//@bot_user_id Identifier of the target bot. The bot must be owned and must have the main Web App
-//@language_code A two-letter ISO 639-1 language code for which preview is added. If empty, then the preview will be shown to all users for whose languages there are no dedicated previews.
-//-If non-empty, then there must be an official language pack of the same name, which is returned by getLocalizationTargetInfo
-//@content Content of the added preview
-addBotMediaPreview bot_user_id:int53 language_code:string content:InputStoryContent = BotMediaPreview;
-
-//@description Replaces media preview in the list of media previews of a bot. Returns the new preview after edit is completed server-side
-//@bot_user_id Identifier of the target bot. The bot must be owned and must have the main Web App
-//@language_code Language code of the media preview to edit
-//@file_id File identifier of the media to replace
-//@content Content of the new preview
-editBotMediaPreview bot_user_id:int53 language_code:string file_id:int32 content:InputStoryContent = BotMediaPreview;
-
-//@description Changes order of media previews in the list of media previews of a bot
-//@bot_user_id Identifier of the target bot. The bot must be owned and must have the main Web App
-//@language_code Language code of the media previews to reorder
-//@file_ids File identifiers of the media in the new order
-reorderBotMediaPreviews bot_user_id:int53 language_code:string file_ids:vector<int32> = Ok;
-
-//@description Delete media previews from the list of media previews of a bot
-//@bot_user_id Identifier of the target bot. The bot must be owned and must have the main Web App
-//@language_code Language code of the media previews to delete
-//@file_ids File identifiers of the media to delete
-deleteBotMediaPreviews bot_user_id:int53 language_code:string file_ids:vector<int32> = Ok;
-
-
-//@description Sets the name of a bot. Can be called only if userTypeBot.can_be_edited == true
-//@bot_user_id Identifier of the target bot
-//@language_code A two-letter ISO 639-1 language code. If empty, the name will be shown to all users for whose languages there is no dedicated name
-//@name New bot's name on the specified language; 0-64 characters; must be non-empty if language code is empty
-setBotName bot_user_id:int53 language_code:string name:string = Ok;
-
-//@description Returns the name of a bot in the given language. Can be called only if userTypeBot.can_be_edited == true
-//@bot_user_id Identifier of the target bot
-//@language_code A two-letter ISO 639-1 language code or an empty string
-getBotName bot_user_id:int53 language_code:string = Text;
-
-//@description Changes a profile photo for a bot @bot_user_id Identifier of the target bot @photo Profile photo to set; pass null to delete the chat photo
-setBotProfilePhoto bot_user_id:int53 photo:InputChatPhoto = Ok;
-
-//@description Changes active state for a username of a bot. The editable username can't be disabled. May return an error with a message "USERNAMES_ACTIVE_TOO_MUCH" if the maximum number of active usernames has been reached. Can be called only if userTypeBot.can_be_edited == true
-//@bot_user_id Identifier of the target bot
-//@username The username to change
-//@is_active Pass true to activate the username; pass false to disable it
-toggleBotUsernameIsActive bot_user_id:int53 username:string is_active:Bool = Ok;
-
-//@description Changes order of active usernames of a bot. Can be called only if userTypeBot.can_be_edited == true @bot_user_id Identifier of the target bot @usernames The new order of active usernames. All currently active usernames must be specified
-reorderBotActiveUsernames bot_user_id:int53 usernames:vector<string> = Ok;
-
-//@description Sets the text shown in the chat with a bot if the chat is empty. Can be called only if userTypeBot.can_be_edited == true
-//@bot_user_id Identifier of the target bot
-//@language_code A two-letter ISO 639-1 language code. If empty, the description will be shown to all users for whose languages there is no dedicated description
-//@param_description New bot's description on the specified language
-setBotInfoDescription bot_user_id:int53 language_code:string description:string = Ok;
-
-//@description Returns the text shown in the chat with a bot if the chat is empty in the given language. Can be called only if userTypeBot.can_be_edited == true
-//@bot_user_id Identifier of the target bot
-//@language_code A two-letter ISO 639-1 language code or an empty string
-getBotInfoDescription bot_user_id:int53 language_code:string = Text;
-
-//@description Sets the text shown on a bot's profile page and sent together with the link when users share the bot. Can be called only if userTypeBot.can_be_edited == true
-//@bot_user_id Identifier of the target bot
-//@language_code A two-letter ISO 639-1 language code. If empty, the short description will be shown to all users for whose languages there is no dedicated description
-//@short_description New bot's short description on the specified language
-setBotInfoShortDescription bot_user_id:int53 language_code:string short_description:string = Ok;
-
-//@description Returns the text shown on a bot's profile page and sent together with the link when users share the bot in the given language. Can be called only if userTypeBot.can_be_edited == true
-//@bot_user_id Identifier of the target bot
-//@language_code A two-letter ISO 639-1 language code or an empty string
-getBotInfoShortDescription bot_user_id:int53 language_code:string = Text;
-
-
-//@description Changes the verification status of a user or a chat by an owned bot
-//@bot_user_id Identifier of the owned bot, which will verify the user or the chat
-//@verified_id Identifier of the user or the supergroup or channel chat, which will be verified by the bot
-//@custom_description Custom description of verification reason; 0-getOption("bot_verification_custom_description_length_max").
-//-If empty, then "was verified by organization "organization_name"" will be used as description. Can be specified only if the bot is allowed to provide custom description
-setMessageSenderBotVerification bot_user_id:int53 verified_id:MessageSender custom_description:string = Ok;
-
-//@description Removes the verification status of a user or a chat by an owned bot
-//@bot_user_id Identifier of the owned bot, which verified the user or the chat
-//@verified_id Identifier of the user or the supergroup or channel chat, which verification is removed
-removeMessageSenderBotVerification bot_user_id:int53 verified_id:MessageSender = Ok;
-
-
-//@description Returns all active sessions of the current user
-getActiveSessions = Sessions;
-
-//@description Terminates a session of the current user @session_id Session identifier
-terminateSession session_id:int64 = Ok;
-
-//@description Terminates all other sessions of the current user
-terminateAllOtherSessions = Ok;
-
-//@description Confirms an unconfirmed session of the current user from another device @session_id Session identifier
-confirmSession session_id:int64 = Ok;
-
-//@description Toggles whether a session can accept incoming calls @session_id Session identifier @can_accept_calls Pass true to allow accepting incoming calls by the session; pass false otherwise
-toggleSessionCanAcceptCalls session_id:int64 can_accept_calls:Bool = Ok;
-
-//@description Toggles whether a session can accept incoming secret chats @session_id Session identifier @can_accept_secret_chats Pass true to allow accepting secret chats by the session; pass false otherwise
-toggleSessionCanAcceptSecretChats session_id:int64 can_accept_secret_chats:Bool = Ok;
-
-//@description Changes the period of inactivity after which sessions will automatically be terminated @inactive_session_ttl_days New number of days of inactivity before sessions will be automatically terminated; 1-366 days
-setInactiveSessionTtl inactive_session_ttl_days:int32 = Ok;
-
-
-//@description Returns all website where the current user used Telegram to log in
-getConnectedWebsites = ConnectedWebsites;
-
-//@description Disconnects website from the current user's Telegram account @website_id Website identifier
-disconnectWebsite website_id:int64 = Ok;
-
-//@description Disconnects all websites from the current user's Telegram account
-disconnectAllWebsites = Ok;
-
-
-//@description Changes the editable username of a supergroup or channel, requires owner privileges in the supergroup or channel
-//@supergroup_id Identifier of the supergroup or channel
-//@username New value of the username. Use an empty string to remove the username. The username can't be completely removed if there is another active or disabled username
-setSupergroupUsername supergroup_id:int53 username:string = Ok;
-
-//@description Changes active state for a username of a supergroup or channel, requires owner privileges in the supergroup or channel. The editable username can't be disabled.
-//-May return an error with a message "USERNAMES_ACTIVE_TOO_MUCH" if the maximum number of active usernames has been reached
-//@supergroup_id Identifier of the supergroup or channel
-//@username The username to change
-//@is_active Pass true to activate the username; pass false to disable it
-toggleSupergroupUsernameIsActive supergroup_id:int53 username:string is_active:Bool = Ok;
-
-//@description Disables all active non-editable usernames of a supergroup or channel, requires owner privileges in the supergroup or channel @supergroup_id Identifier of the supergroup or channel
-disableAllSupergroupUsernames supergroup_id:int53 = Ok;
-
-//@description Changes order of active usernames of a supergroup or channel, requires owner privileges in the supergroup or channel
-//@supergroup_id Identifier of the supergroup or channel
-//@usernames The new order of active usernames. All currently active usernames must be specified
-reorderSupergroupActiveUsernames supergroup_id:int53 usernames:vector<string> = Ok;
-
-//@description Changes the sticker set of a supergroup; requires can_change_info administrator right @supergroup_id Identifier of the supergroup @sticker_set_id New value of the supergroup sticker set identifier. Use 0 to remove the supergroup sticker set
-setSupergroupStickerSet supergroup_id:int53 sticker_set_id:int64 = Ok;
-
-//@description Changes the custom emoji sticker set of a supergroup; requires can_change_info administrator right. The chat must have at least chatBoostFeatures.min_custom_emoji_sticker_set_boost_level boost level to pass the corresponding color
-//@supergroup_id Identifier of the supergroup
-//@custom_emoji_sticker_set_id New value of the custom emoji sticker set identifier for the supergroup. Use 0 to remove the custom emoji sticker set in the supergroup
-setSupergroupCustomEmojiStickerSet supergroup_id:int53 custom_emoji_sticker_set_id:int64 = Ok;
-
-//@description Changes the number of times the supergroup must be boosted by a user to ignore slow mode and chat permission restrictions; requires can_restrict_members administrator right
-//@supergroup_id Identifier of the supergroup
-//@unrestrict_boost_count New value of the unrestrict_boost_count supergroup setting; 0-8. Use 0 to remove the setting
-setSupergroupUnrestrictBoostCount supergroup_id:int53 unrestrict_boost_count:int32 = Ok;
-
-//@description Toggles whether sender signature or link to the account is added to sent messages in a channel; requires can_change_info member right
-//@supergroup_id Identifier of the channel
-//@sign_messages New value of sign_messages
-//@show_message_sender New value of show_message_sender
-toggleSupergroupSignMessages supergroup_id:int53 sign_messages:Bool show_message_sender:Bool = Ok;
-
-//@description Toggles whether joining is mandatory to send messages to a discussion supergroup; requires can_restrict_members administrator right
-//@supergroup_id Identifier of the supergroup that isn't a broadcast group
-//@join_to_send_messages New value of join_to_send_messages
-toggleSupergroupJoinToSendMessages supergroup_id:int53 join_to_send_messages:Bool = Ok;
-
-//@description Toggles whether all users directly joining the supergroup need to be approved by supergroup administrators; requires can_restrict_members administrator right
-//@supergroup_id Identifier of the supergroup that isn't a broadcast group
-//@join_by_request New value of join_by_request
-toggleSupergroupJoinByRequest supergroup_id:int53 join_by_request:Bool = Ok;
-
-//@description Toggles whether the message history of a supergroup is available to new members; requires can_change_info member right @supergroup_id The identifier of the supergroup @is_all_history_available The new value of is_all_history_available
-toggleSupergroupIsAllHistoryAvailable supergroup_id:int53 is_all_history_available:Bool = Ok;
-
-//@description Toggles whether sponsored messages are shown in the channel chat; requires owner privileges in the channel. The chat must have at least chatBoostFeatures.min_sponsored_message_disable_boost_level boost level to disable sponsored messages
-//@supergroup_id The identifier of the channel
-//@can_have_sponsored_messages The new value of can_have_sponsored_messages
-toggleSupergroupCanHaveSponsoredMessages supergroup_id:int53 can_have_sponsored_messages:Bool = Ok;
-
-//@description Toggles whether non-administrators can receive only administrators and bots using getSupergroupMembers or searchChatMembers. Can be called only if supergroupFullInfo.can_hide_members == true
-//@supergroup_id Identifier of the supergroup
-//@has_hidden_members New value of has_hidden_members
-toggleSupergroupHasHiddenMembers supergroup_id:int53 has_hidden_members:Bool = Ok;
-
-//@description Toggles whether aggressive anti-spam checks are enabled in the supergroup. Can be called only if supergroupFullInfo.can_toggle_aggressive_anti_spam == true
-//@supergroup_id The identifier of the supergroup, which isn't a broadcast group
-//@has_aggressive_anti_spam_enabled The new value of has_aggressive_anti_spam_enabled
-toggleSupergroupHasAggressiveAntiSpamEnabled supergroup_id:int53 has_aggressive_anti_spam_enabled:Bool = Ok;
-
-//@description Toggles whether the supergroup is a forum; requires owner privileges in the supergroup. Discussion supergroups can't be converted to forums @supergroup_id Identifier of the supergroup @is_forum New value of is_forum
-toggleSupergroupIsForum supergroup_id:int53 is_forum:Bool = Ok;
-
-//@description Upgrades supergroup to a broadcast group; requires owner privileges in the supergroup @supergroup_id Identifier of the supergroup
-toggleSupergroupIsBroadcastGroup supergroup_id:int53 = Ok;
-
-//@description Reports messages in a supergroup as spam; requires administrator rights in the supergroup
-//@supergroup_id Supergroup identifier
-//@message_ids Identifiers of messages to report. Use messageProperties.can_report_supergroup_spam to check whether the message can be reported
-reportSupergroupSpam supergroup_id:int53 message_ids:vector<int53> = Ok;
-
-//@description Reports a false deletion of a message by aggressive anti-spam checks; requires administrator rights in the supergroup. Can be called only for messages from chatEventMessageDeleted with can_report_anti_spam_false_positive == true
-//@supergroup_id Supergroup identifier
-//@message_id Identifier of the erroneously deleted message from chatEventMessageDeleted
-reportSupergroupAntiSpamFalsePositive supergroup_id:int53 message_id:int53 = Ok;
-
-//@description Returns information about members or banned users in a supergroup or channel. Can be used only if supergroupFullInfo.can_get_members == true; additionally, administrator privileges may be required for some filters
-//@supergroup_id Identifier of the supergroup or channel
-//@filter The type of users to return; pass null to use supergroupMembersFilterRecent
-//@offset Number of users to skip
-//@limit The maximum number of users to be returned; up to 200
-getSupergroupMembers supergroup_id:int53 filter:SupergroupMembersFilter offset:int32 limit:int32 = ChatMembers;
-
-
-//@description Closes a secret chat, effectively transferring its state to secretChatStateClosed @secret_chat_id Secret chat identifier
-closeSecretChat secret_chat_id:int32 = Ok;
-
-
-//@description Returns a list of service actions taken by chat members and administrators in the last 48 hours. Available only for supergroups and channels. Requires administrator rights. Returns results in reverse chronological order (i.e., in order of decreasing event_id)
-//@chat_id Chat identifier
-//@query Search query by which to filter events
-//@from_event_id Identifier of an event from which to return results. Use 0 to get results from the latest events
-//@limit The maximum number of events to return; up to 100
-//@filters The types of events to return; pass null to get chat events of all types
-//@user_ids User identifiers by which to filter events. By default, events relating to all users will be returned
-getChatEventLog chat_id:int53 query:string from_event_id:int64 limit:int32 filters:chatEventLogFilters user_ids:vector<int53> = ChatEvents;
-
-
-//@description Returns the list of supported time zones
-getTimeZones = TimeZones;
-
-
-//@description Returns an invoice payment form. This method must be called when the user presses inline button of the type inlineKeyboardButtonTypeBuy, or wants to buy access to media in a messagePaidMedia message
-//@input_invoice The invoice
-//@theme Preferred payment form theme; pass null to use the default theme
-getPaymentForm input_invoice:InputInvoice theme:themeParameters = PaymentForm;
-
-//@description Validates the order information provided by a user and returns the available shipping options for a flexible invoice
-//@input_invoice The invoice
-//@order_info The order information, provided by the user; pass null if empty
-//@allow_save Pass true to save the order information
-validateOrderInfo input_invoice:InputInvoice order_info:orderInfo allow_save:Bool = ValidatedOrderInfo;
-
-//@description Sends a filled-out payment form to the bot for final verification
-//@input_invoice The invoice
-//@payment_form_id Payment form identifier returned by getPaymentForm
-//@order_info_id Identifier returned by validateOrderInfo, or an empty string
-//@shipping_option_id Identifier of a chosen shipping option, if applicable
-//@credentials The credentials chosen by user for payment; pass null for a payment in Telegram Stars
-//@tip_amount Chosen by the user amount of tip in the smallest units of the currency
-sendPaymentForm input_invoice:InputInvoice payment_form_id:int64 order_info_id:string shipping_option_id:string credentials:InputCredentials tip_amount:int53 = PaymentResult;
-
-//@description Returns information about a successful payment @chat_id Chat identifier of the messagePaymentSuccessful message @message_id Message identifier
-getPaymentReceipt chat_id:int53 message_id:int53 = PaymentReceipt;
-
-//@description Returns saved order information. Returns a 404 error if there is no saved order information
-getSavedOrderInfo = OrderInfo;
-
-//@description Deletes saved order information
-deleteSavedOrderInfo = Ok;
-
-//@description Deletes saved credentials for all payment provider bots
-deleteSavedCredentials = Ok;
-
-
-//@description Changes settings for gift receiving for the current user @settings The new settings
-setGiftSettings settings:giftSettings = Ok;
-
-//@description Returns gifts that can be sent to other users and channel chats
-getAvailableGifts = Gifts;
-
-//@description Sends a gift to another user or channel chat. May return an error with a message "STARGIFT_USAGE_LIMITED" if the gift was sold out
-//@gift_id Identifier of the gift to send
-//@owner_id Identifier of the user or the channel chat that will receive the gift
-//@text Text to show along with the gift; 0-getOption("gift_text_length_max") characters. Only Bold, Italic, Underline, Strikethrough, Spoiler, and CustomEmoji entities are allowed.
-//-Must be empty if the receiver enabled paid messages
-//@is_private Pass true to show gift text and sender only to the gift receiver; otherwise, everyone will be able to see them
-//@pay_for_upgrade Pass true to additionally pay for the gift upgrade and allow the receiver to upgrade it for free
-sendGift gift_id:int64 owner_id:MessageSender text:formattedText is_private:Bool pay_for_upgrade:Bool = Ok;
-
-//@description Sells a gift for Telegram Stars
-//@business_connection_id Unique identifier of business connection on behalf of which to send the request; for bots only
-//@received_gift_id Identifier of the gift
-sellGift business_connection_id:string received_gift_id:string = Ok;
-
-//@description Toggles whether a gift is shown on the current user's or the channel's profile page; requires can_post_messages administrator right in the channel chat
-//@received_gift_id Identifier of the gift
-//@is_saved Pass true to display the gift on the user's or the channel's profile page; pass false to remove it from the profile page
-toggleGiftIsSaved received_gift_id:string is_saved:Bool = Ok;
-
-//@description Changes the list of pinned gifts on the current user's or the channel's profile page; requires can_post_messages administrator right in the channel chat
-//@owner_id Identifier of the user or the channel chat that received the gifts
-//@received_gift_ids New list of pinned gifts. All gifts must be upgraded and saved on the profile page first. There can be up to getOption("pinned_gift_count_max") pinned gifts
-setPinnedGifts owner_id:MessageSender received_gift_ids:vector<string> = Ok;
-
-//@description Toggles whether notifications for new gifts received by a channel chat are sent to the current user; requires can_post_messages administrator right in the chat
-//@chat_id Identifier of the channel chat
-//@are_enabled Pass true to enable notifications about new gifts owned by the channel chat; pass false to disable the notifications
-toggleChatGiftNotifications chat_id:int53 are_enabled:Bool = Ok;
-
-//@description Returns examples of possible upgraded gifts for a regular gift @gift_id Identifier of the gift
-getGiftUpgradePreview gift_id:int64 = GiftUpgradePreview;
-
-//@description Upgrades a regular gift
-//@business_connection_id Unique identifier of business connection on behalf of which to send the request; for bots only
-//@received_gift_id Identifier of the gift
-//@keep_original_details Pass true to keep the original gift text, sender and receiver in the upgraded gift
-//@star_count The amount of Telegram Stars required to pay for the upgrade. It the gift has prepaid_upgrade_star_count > 0, then pass 0, otherwise, pass gift.upgrade_star_count
-upgradeGift business_connection_id:string received_gift_id:string keep_original_details:Bool star_count:int53 = UpgradeGiftResult;
-
-//@description Sends an upgraded gift to another user or a channel chat
-//@business_connection_id Unique identifier of business connection on behalf of which to send the request; for bots only
-//@received_gift_id Identifier of the gift
-//@new_owner_id Identifier of the user or the channel chat that will receive the gift
-//@star_count The amount of Telegram Stars required to pay for the transfer
-transferGift business_connection_id:string received_gift_id:string new_owner_id:MessageSender star_count:int53 = Ok;
-
-//@description Returns gifts received by the given user or chat
-//@business_connection_id Unique identifier of business connection on behalf of which to send the request; for bots only
-//@owner_id Identifier of the gift receiver
-//@exclude_unsaved Pass true to exclude gifts that aren't saved to the chat's profile page. Always true for gifts received by other users and channel chats without can_post_messages administrator right
-//@exclude_saved Pass true to exclude gifts that are saved to the chat's profile page. Always false for gifts received by other users and channel chats without can_post_messages administrator right
-//@exclude_unlimited Pass true to exclude gifts that can be purchased unlimited number of times
-//@exclude_limited Pass true to exclude gifts that can be purchased limited number of times
-//@exclude_upgraded Pass true to exclude upgraded gifts
-//@sort_by_price Pass true to sort results by gift price instead of send date
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of gifts to be returned; must be positive and can't be greater than 100. For optimal performance, the number of returned objects is chosen by TDLib and can be smaller than the specified limit
-getReceivedGifts business_connection_id:string owner_id:MessageSender exclude_unsaved:Bool exclude_saved:Bool exclude_unlimited:Bool exclude_limited:Bool exclude_upgraded:Bool sort_by_price:Bool offset:string limit:int32 = ReceivedGifts;
-
-//@description Returns information about a received gift @received_gift_id Identifier of the gift
-getReceivedGift received_gift_id:string = ReceivedGift;
-
-//@description Returns information about an upgraded gift by its name @name Unique name of the upgraded gift
-getUpgradedGift name:string = UpgradedGift;
-
-//@description Returns a URL for upgraded gift withdrawal in the TON blockchain as an NFT; requires owner privileges for gifts owned by a chat
-//@received_gift_id Identifier of the gift
-//@password The 2-step verification password of the current user
-getUpgradedGiftWithdrawalUrl received_gift_id:string password:string = HttpUrl;
-
-
-//@description Creates a link for the given invoice; for bots only
-//@business_connection_id Unique identifier of business connection on behalf of which to send the request
-//@invoice Information about the invoice of the type inputMessageInvoice
-createInvoiceLink business_connection_id:string invoice:InputMessageContent = HttpUrl;
-
-//@description Refunds a previously done payment in Telegram Stars; for bots only
-//@user_id Identifier of the user that did the payment
-//@telegram_payment_charge_id Telegram payment identifier
-refundStarPayment user_id:int53 telegram_payment_charge_id:string = Ok;
-
-
-//@description Returns a user that can be contacted to get support
-getSupportUser = User;
-
-
-//@description Constructs a persistent HTTP URL for a background @name Background name @type Background type; backgroundTypeChatTheme isn't supported
-getBackgroundUrl name:string type:BackgroundType = HttpUrl;
-
-//@description Searches for a background by its name @name The name of the background
-searchBackground name:string = Background;
-
-//@description Sets default background for chats; adds the background to the list of installed backgrounds
-//@background The input background to use; pass null to create a new filled background
-//@type Background type; pass null to use the default type of the remote background; backgroundTypeChatTheme isn't supported
-//@for_dark_theme Pass true if the background is set for a dark theme
-setDefaultBackground background:InputBackground type:BackgroundType for_dark_theme:Bool = Background;
-
-//@description Deletes default background for chats @for_dark_theme Pass true if the background is deleted for a dark theme
-deleteDefaultBackground for_dark_theme:Bool = Ok;
-
-//@description Returns backgrounds installed by the user @for_dark_theme Pass true to order returned backgrounds for a dark theme
-getInstalledBackgrounds for_dark_theme:Bool = Backgrounds;
-
-//@description Removes background from the list of installed backgrounds @background_id The background identifier
-removeInstalledBackground background_id:int64 = Ok;
-
-//@description Resets list of installed backgrounds to its default value
-resetInstalledBackgrounds = Ok;
-
-
-//@description Returns information about the current localization target. This is an offline method if only_local is true. Can be called before authorization @only_local Pass true to get only locally available information without sending network requests
-getLocalizationTargetInfo only_local:Bool = LocalizationTargetInfo;
-
-//@description Returns information about a language pack. Returned language pack identifier may be different from a provided one. Can be called before authorization @language_pack_id Language pack identifier
-getLanguagePackInfo language_pack_id:string = LanguagePackInfo;
-
-//@description Returns strings from a language pack in the current localization target by their keys. Can be called before authorization
-//@language_pack_id Language pack identifier of the strings to be returned
-//@keys Language pack keys of the strings to be returned; leave empty to request all available strings
-getLanguagePackStrings language_pack_id:string keys:vector<string> = LanguagePackStrings;
-
-//@description Fetches the latest versions of all strings from a language pack in the current localization target from the server.
-//-This method doesn't need to be called explicitly for the current used/base language packs. Can be called before authorization
-//@language_pack_id Language pack identifier
-synchronizeLanguagePack language_pack_id:string = Ok;
-
-//@description Adds a custom server language pack to the list of installed language packs in current localization target. Can be called before authorization @language_pack_id Identifier of a language pack to be added
-addCustomServerLanguagePack language_pack_id:string = Ok;
-
-//@description Adds or changes a custom local language pack to the current localization target
-//@info Information about the language pack. Language pack identifier must start with 'X', consist only of English letters, digits and hyphens, and must not exceed 64 characters. Can be called before authorization
-//@strings Strings of the new language pack
-setCustomLanguagePack info:languagePackInfo strings:vector<languagePackString> = Ok;
-
-//@description Edits information about a custom local language pack in the current localization target. Can be called before authorization @info New information about the custom local language pack
-editCustomLanguagePackInfo info:languagePackInfo = Ok;
-
-//@description Adds, edits or deletes a string in a custom local language pack. Can be called before authorization @language_pack_id Identifier of a previously added custom local language pack in the current localization target @new_string New language pack string
-setCustomLanguagePackString language_pack_id:string new_string:languagePackString = Ok;
-
-//@description Deletes all information about a language pack in the current localization target. The language pack which is currently in use (including base language pack) or is being synchronized can't be deleted.
-//-Can be called before authorization
-//@language_pack_id Identifier of the language pack to delete
-deleteLanguagePack language_pack_id:string = Ok;
-
-
-//@description Registers the currently used device for receiving push notifications. Returns a globally unique identifier of the push notification subscription @device_token Device token @other_user_ids List of user identifiers of other users currently using the application
-registerDevice device_token:DeviceToken other_user_ids:vector<int53> = PushReceiverId;
-
-//@description Handles a push notification. Returns error with code 406 if the push notification is not supported and connection to the server is required to fetch new data. Can be called before authorization
-//@payload JSON-encoded push notification payload with all fields sent by the server, and "google.sent_time" and "google.notification.sound" fields added
-processPushNotification payload:string = Ok;
-
-//@description Returns a globally unique push notification subscription identifier for identification of an account, which has received a push notification. Can be called synchronously @payload JSON-encoded push notification payload
-getPushReceiverId payload:string = PushReceiverId;
-
-
-//@description Returns t.me URLs recently visited by a newly registered user @referrer Google Play referrer to identify the user
-getRecentlyVisitedTMeUrls referrer:string = TMeUrls;
-
-
-//@description Changes user privacy settings @setting The privacy setting @rules The new privacy rules
-setUserPrivacySettingRules setting:UserPrivacySetting rules:userPrivacySettingRules = Ok;
-
-//@description Returns the current privacy settings @setting The privacy setting
-getUserPrivacySettingRules setting:UserPrivacySetting = UserPrivacySettingRules;
-
-//@description Changes privacy settings for message read date @settings New settings
-setReadDatePrivacySettings settings:readDatePrivacySettings = Ok;
-
-//@description Returns privacy settings for message read date
-getReadDatePrivacySettings = ReadDatePrivacySettings;
-
-//@description Changes privacy settings for new chat creation; can be used only if getOption("can_set_new_chat_privacy_settings") @settings New settings
-setNewChatPrivacySettings settings:newChatPrivacySettings = Ok;
-
-//@description Returns privacy settings for new chat creation
-getNewChatPrivacySettings = NewChatPrivacySettings;
-
-//@description Returns the total number of Telegram Stars received by the current user for paid messages from the given user @user_id Identifier of the user
-getPaidMessageRevenue user_id:int53 = StarCount;
-
-//@description Allows the specified user to send unpaid private messages to the current user by adding a rule to userPrivacySettingAllowUnpaidMessages
-//@user_id Identifier of the user
-//@refund_payments Pass true to refund the user previously paid messages
-allowUnpaidMessagesFromUser user_id:int53 refund_payments:Bool = Ok;
-
-//@description Changes the amount of Telegram Stars that must be paid to send a message to a supergroup chat; requires can_restrict_members administrator right and supergroupFullInfo.can_enable_paid_messages
-//@chat_id Identifier of the supergroup chat
-//@paid_message_star_count The new number of Telegram Stars that must be paid for each message that is sent to the supergroup chat unless the sender is an administrator of the chat; 0-getOption("paid_message_star_count_max").
-//-The supergroup will receive getOption("paid_message_earnings_per_mille") Telegram Stars for each 1000 Telegram Stars paid for message sending
-setChatPaidMessageStarCount chat_id:int53 paid_message_star_count:int53 = Ok;
-
-
-//@description Check whether the current user can message another user or try to create a chat with them
-//@user_id Identifier of the other user
-//@only_local Pass true to get only locally available information without sending network requests
-canSendMessageToUser user_id:int53 only_local:Bool = CanSendMessageToUserResult;
-
-
-//@description Returns the value of an option by its name. (Check the list of available options on https://core.telegram.org/tdlib/options.) Can be called before authorization. Can be called synchronously for options "version" and "commit_hash"
-//@name The name of the option
-getOption name:string = OptionValue;
-
-//@description Sets the value of an option. (Check the list of available options on https://core.telegram.org/tdlib/options.) Only writable options can be set. Can be called before authorization
-//@name The name of the option
-//@value The new value of the option; pass null to reset option value to a default value
-setOption name:string value:OptionValue = Ok;
-
-
-//@description Changes the period of inactivity after which the account of the current user will automatically be deleted @ttl New account TTL
-setAccountTtl ttl:accountTtl = Ok;
-
-//@description Returns the period of inactivity after which the account of the current user will automatically be deleted
-getAccountTtl = AccountTtl;
-
-//@description Deletes the account of the current user, deleting all information associated with the user from the server. The phone number of the account can be used to create a new account.
-//-Can be called before authorization when the current authorization state is authorizationStateWaitPassword
-//@reason The reason why the account was deleted; optional
-//@password The 2-step verification password of the current user. If the current user isn't authorized, then an empty string can be passed and account deletion can be canceled within one week
-deleteAccount reason:string password:string = Ok;
-
-
-//@description Changes the default message auto-delete time for new chats @message_auto_delete_time New default message auto-delete time; must be from 0 up to 365 * 86400 and be divisible by 86400. If 0, then messages aren't deleted automatically
-setDefaultMessageAutoDeleteTime message_auto_delete_time:messageAutoDeleteTime = Ok;
-
-//@description Returns default message auto-delete time setting for new chats
-getDefaultMessageAutoDeleteTime = MessageAutoDeleteTime;
-
-
-//@description Removes a chat action bar without any other action @chat_id Chat identifier
-removeChatActionBar chat_id:int53 = Ok;
-
-//@description Reports a chat to the Telegram moderators. A chat can be reported only from the chat action bar, or if chat.can_be_reported
-//@chat_id Chat identifier
-//@option_id Option identifier chosen by the user; leave empty for the initial request
-//@message_ids Identifiers of reported messages. Use messageProperties.can_report_chat to check whether the message can be reported
-//@text Additional report details if asked by the server; 0-1024 characters; leave empty for the initial request
-reportChat chat_id:int53 option_id:bytes message_ids:vector<int53> text:string = ReportChatResult;
-
-//@description Reports a chat photo to the Telegram moderators. A chat photo can be reported only if chat.can_be_reported
-//@chat_id Chat identifier
-//@file_id Identifier of the photo to report. Only full photos from chatPhoto can be reported
-//@reason The reason for reporting the chat photo
-//@text Additional report details; 0-1024 characters
-reportChatPhoto chat_id:int53 file_id:int32 reason:ReportReason text:string = Ok;
-
-//@description Reports reactions set on a message to the Telegram moderators. Reactions on a message can be reported only if messageProperties.can_report_reactions
-//@chat_id Chat identifier
-//@message_id Message identifier
-//@sender_id Identifier of the sender, which added the reaction
-reportMessageReactions chat_id:int53 message_id:int53 sender_id:MessageSender = Ok;
-
-
-//@description Returns detailed revenue statistics about a chat. Currently, this method can be used only
-//-for channels if supergroupFullInfo.can_get_revenue_statistics == true or bots if userFullInfo.bot_info.can_get_revenue_statistics == true
-//@chat_id Chat identifier
-//@is_dark Pass true if a dark theme is used by the application
-getChatRevenueStatistics chat_id:int53 is_dark:Bool = ChatRevenueStatistics;
-
-//@description Returns a URL for chat revenue withdrawal; requires owner privileges in the channel chat or the bot. Currently, this method can be used only
-//-if getOption("can_withdraw_chat_revenue") for channels with supergroupFullInfo.can_get_revenue_statistics == true or bots with userFullInfo.bot_info.can_get_revenue_statistics == true
-//@chat_id Chat identifier
-//@password The 2-step verification password of the current user
-getChatRevenueWithdrawalUrl chat_id:int53 password:string = HttpUrl;
-
-//@description Returns the list of revenue transactions for a chat. Currently, this method can be used only
-//-for channels if supergroupFullInfo.can_get_revenue_statistics == true or bots if userFullInfo.bot_info.can_get_revenue_statistics == true
-//@chat_id Chat identifier
-//@offset Number of transactions to skip
-//@limit The maximum number of transactions to be returned; up to 200
-getChatRevenueTransactions chat_id:int53 offset:int32 limit:int32 = ChatRevenueTransactions;
-
-
-//@description Returns detailed Telegram Star revenue statistics
-//@owner_id Identifier of the owner of the Telegram Stars; can be identifier of the current user, an owned bot, or a supergroup or a channel chat with supergroupFullInfo.can_get_star_revenue_statistics == true
-//@is_dark Pass true if a dark theme is used by the application
-getStarRevenueStatistics owner_id:MessageSender is_dark:Bool = StarRevenueStatistics;
-
-//@description Returns a URL for Telegram Star withdrawal
-//@owner_id Identifier of the owner of the Telegram Stars; can be identifier of the current user, an owned bot, or an owned supergroup or channel chat
-//@star_count The number of Telegram Stars to withdraw. Must be at least getOption("star_withdrawal_count_min")
-//@password The 2-step verification password of the current user
-getStarWithdrawalUrl owner_id:MessageSender star_count:int53 password:string = HttpUrl;
-
-//@description Returns a URL for a Telegram Ad platform account that can be used to set up advertisements for the chat paid in the owned Telegram Stars
-//@owner_id Identifier of the owner of the Telegram Stars; can be identifier of an owned bot, or identifier of an owned channel chat
-getStarAdAccountUrl owner_id:MessageSender = HttpUrl;
-
-
-//@description Returns detailed statistics about a chat. Currently, this method can be used only for supergroups and channels. Can be used only if supergroupFullInfo.can_get_statistics == true @chat_id Chat identifier @is_dark Pass true if a dark theme is used by the application
-getChatStatistics chat_id:int53 is_dark:Bool = ChatStatistics;
-
-//@description Returns detailed statistics about a message. Can be used only if messageProperties.can_get_statistics == true @chat_id Chat identifier @message_id Message identifier @is_dark Pass true if a dark theme is used by the application
-getMessageStatistics chat_id:int53 message_id:int53 is_dark:Bool = MessageStatistics;
-
-//@description Returns forwarded copies of a channel message to different public channels and public reposts as a story. Can be used only if messageProperties.can_get_statistics == true. For optimal performance, the number of returned messages and stories is chosen by TDLib
-//@chat_id Chat identifier of the message
-//@message_id Message identifier
-//@offset Offset of the first entry to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of messages and stories to be returned; must be positive and can't be greater than 100. For optimal performance, the number of returned objects is chosen by TDLib and can be smaller than the specified limit
-getMessagePublicForwards chat_id:int53 message_id:int53 offset:string limit:int32 = PublicForwards;
-
-//@description Returns detailed statistics about a story. Can be used only if story.can_get_statistics == true @chat_id Chat identifier @story_id Story identifier @is_dark Pass true if a dark theme is used by the application
-getStoryStatistics chat_id:int53 story_id:int32 is_dark:Bool = StoryStatistics;
-
-//@description Loads an asynchronous or a zoomed in statistical graph @chat_id Chat identifier @token The token for graph loading @x X-value for zoomed in graph or 0 otherwise
-getStatisticalGraph chat_id:int53 token:string x:int53 = StatisticalGraph;
-
-
-//@description Returns storage usage statistics. Can be called before authorization
-//@chat_limit The maximum number of chats with the largest storage usage for which separate statistics need to be returned. All other chats will be grouped in entries with chat_id == 0. If the chat info database is not used, the chat_limit is ignored and is always set to 0
-getStorageStatistics chat_limit:int32 = StorageStatistics;
-
-//@description Quickly returns approximate storage usage statistics. Can be called before authorization
-getStorageStatisticsFast = StorageStatisticsFast;
-
-//@description Returns database statistics
-getDatabaseStatistics = DatabaseStatistics;
-
-//@description Optimizes storage usage, i.e. deletes some files and returns new storage usage statistics. Secret thumbnails can't be deleted
-//@size Limit on the total size of files after deletion, in bytes. Pass -1 to use the default limit
-//@ttl Limit on the time that has passed since the last time a file was accessed (or creation time for some filesystems). Pass -1 to use the default limit
-//@count Limit on the total number of files after deletion. Pass -1 to use the default limit
-//@immunity_delay The amount of time after the creation of a file during which it can't be deleted, in seconds. Pass -1 to use the default value
-//@file_types If non-empty, only files with the given types are considered. By default, all types except thumbnails, profile photos, stickers and wallpapers are deleted
-//@chat_ids If non-empty, only files from the given chats are considered. Use 0 as chat identifier to delete files not belonging to any chat (e.g., profile photos)
-//@exclude_chat_ids If non-empty, files from the given chats are excluded. Use 0 as chat identifier to exclude all files not belonging to any chat (e.g., profile photos)
-//@return_deleted_file_statistics Pass true if statistics about the files that were deleted must be returned instead of the whole storage usage statistics. Affects only returned statistics
-//@chat_limit Same as in getStorageStatistics. Affects only returned statistics
-optimizeStorage size:int53 ttl:int32 count:int32 immunity_delay:int32 file_types:vector<FileType> chat_ids:vector<int53> exclude_chat_ids:vector<int53> return_deleted_file_statistics:Bool chat_limit:int32 = StorageStatistics;
-
-
-//@description Sets the current network type. Can be called before authorization. Calling this method forces all network connections to reopen, mitigating the delay in switching between different networks,
-//-so it must be called whenever the network is changed, even if the network type remains the same. Network type is used to check whether the library can use the network at all and also for collecting detailed network data usage statistics
-//@type The new network type; pass null to set network type to networkTypeOther
-setNetworkType type:NetworkType = Ok;
-
-//@description Returns network data usage statistics. Can be called before authorization @only_current Pass true to get statistics only for the current library launch
-getNetworkStatistics only_current:Bool = NetworkStatistics;
-
-//@description Adds the specified data to data usage statistics. Can be called before authorization @entry The network statistics entry with the data to be added to statistics
-addNetworkStatistics entry:NetworkStatisticsEntry = Ok;
-
-//@description Resets all network data usage statistics to zero. Can be called before authorization
-resetNetworkStatistics = Ok;
-
-//@description Returns auto-download settings presets for the current user
-getAutoDownloadSettingsPresets = AutoDownloadSettingsPresets;
-
-//@description Sets auto-download settings @settings New user auto-download settings @type Type of the network for which the new settings are relevant
-setAutoDownloadSettings settings:autoDownloadSettings type:NetworkType = Ok;
-
-//@description Returns autosave settings for the current user
-getAutosaveSettings = AutosaveSettings;
-
-//@description Sets autosave settings for the given scope. The method is guaranteed to work only after at least one call to getAutosaveSettings @scope Autosave settings scope @settings New autosave settings for the scope; pass null to set autosave settings to default
-setAutosaveSettings scope:AutosaveSettingsScope settings:scopeAutosaveSettings = Ok;
-
-//@description Clears the list of all autosave settings exceptions. The method is guaranteed to work only after at least one call to getAutosaveSettings
-clearAutosaveSettingsExceptions = Ok;
-
-
-//@description Returns information about a bank card @bank_card_number The bank card number
-getBankCardInfo bank_card_number:string = BankCardInfo;
-
-
-//@description Returns one of the available Telegram Passport elements @type Telegram Passport element type @password The 2-step verification password of the current user
-getPassportElement type:PassportElementType password:string = PassportElement;
-
-//@description Returns all available Telegram Passport elements @password The 2-step verification password of the current user
-getAllPassportElements password:string = PassportElements;
-
-//@description Adds an element to the user's Telegram Passport. May return an error with a message "PHONE_VERIFICATION_NEEDED" or "EMAIL_VERIFICATION_NEEDED" if the chosen phone number or the chosen email address must be verified first
-//@element Input Telegram Passport element
-//@password The 2-step verification password of the current user
-setPassportElement element:InputPassportElement password:string = PassportElement;
-
-//@description Deletes a Telegram Passport element @type Element type
-deletePassportElement type:PassportElementType = Ok;
-
-//@description Informs the user that some of the elements in their Telegram Passport contain errors; for bots only. The user will not be able to resend the elements, until the errors are fixed @user_id User identifier @errors The errors
-setPassportElementErrors user_id:int53 errors:vector<inputPassportElementError> = Ok;
-
-
-//@description Returns an IETF language tag of the language preferred in the country, which must be used to fill native fields in Telegram Passport personal details. Returns a 404 error if unknown @country_code A two-letter ISO 3166-1 alpha-2 country code
-getPreferredCountryLanguage country_code:string = Text;
-
-
-//@description Sends a code to verify an email address to be added to a user's Telegram Passport @email_address Email address
-sendEmailAddressVerificationCode email_address:string = EmailAddressAuthenticationCodeInfo;
-
-//@description Resends the code to verify an email address to be added to a user's Telegram Passport
-resendEmailAddressVerificationCode = EmailAddressAuthenticationCodeInfo;
-
-//@description Checks the email address verification code for Telegram Passport @code Verification code to check
-checkEmailAddressVerificationCode code:string = Ok;
-
-
-//@description Returns a Telegram Passport authorization form for sharing data with a service
-//@bot_user_id User identifier of the service's bot
-//@scope Telegram Passport element types requested by the service
-//@public_key Service's public key
-//@nonce Unique request identifier provided by the service
-getPassportAuthorizationForm bot_user_id:int53 scope:string public_key:string nonce:string = PassportAuthorizationForm;
-
-//@description Returns already available Telegram Passport elements suitable for completing a Telegram Passport authorization form. Result can be received only once for each authorization form
-//@authorization_form_id Authorization form identifier
-//@password The 2-step verification password of the current user
-getPassportAuthorizationFormAvailableElements authorization_form_id:int32 password:string = PassportElementsWithErrors;
-
-//@description Sends a Telegram Passport authorization form, effectively sharing data with the service. This method must be called after getPassportAuthorizationFormAvailableElements if some previously available elements are going to be reused
-//@authorization_form_id Authorization form identifier
-//@types Types of Telegram Passport elements chosen by user to complete the authorization form
-sendPassportAuthorizationForm authorization_form_id:int32 types:vector<PassportElementType> = Ok;
-
-
-//@description Informs the server about the number of pending bot updates if they haven't been processed for a long time; for bots only @pending_update_count The number of pending updates @error_message The last error message
-setBotUpdatesStatus pending_update_count:int32 error_message:string = Ok;
-
-
-//@description Uploads a file with a sticker; returns the uploaded file
-//@user_id Sticker file owner; ignored for regular users
-//@sticker_format Sticker format
-//@sticker File file to upload; must fit in a 512x512 square. For WEBP stickers the file must be in WEBP or PNG format, which will be converted to WEBP server-side.
-//-See https://core.telegram.org/animated_stickers#technical-requirements for technical requirements
-uploadStickerFile user_id:int53 sticker_format:StickerFormat sticker:InputFile = File;
-
-//@description Returns a suggested name for a new sticker set with a given title @title Sticker set title; 1-64 characters
-getSuggestedStickerSetName title:string = Text;
-
-//@description Checks whether a name can be used for a new sticker set @name Name to be checked
-checkStickerSetName name:string = CheckStickerSetNameResult;
-
-//@description Creates a new sticker set. Returns the newly created sticker set
-//@user_id Sticker set owner; ignored for regular users
-//@title Sticker set title; 1-64 characters
-//@name Sticker set name. Can contain only English letters, digits and underscores. Must end with *"_by_<bot username>"* (*<bot_username>* is case insensitive) for bots; 0-64 characters.
-//-If empty, then the name returned by getSuggestedStickerSetName will be used automatically
-//@sticker_type Type of the stickers in the set
-//@needs_repainting Pass true if stickers in the sticker set must be repainted; for custom emoji sticker sets only
-//@stickers List of stickers to be added to the set; 1-200 stickers for custom emoji sticker sets, and 1-120 stickers otherwise. For TGS stickers, uploadStickerFile must be used before the sticker is shown
-//@source Source of the sticker set; may be empty if unknown
-createNewStickerSet user_id:int53 title:string name:string sticker_type:StickerType needs_repainting:Bool stickers:vector<inputSticker> source:string = StickerSet;
-
-//@description Adds a new sticker to a set
-//@user_id Sticker set owner; ignored for regular users
-//@name Sticker set name. The sticker set must be owned by the current user, and contain less than 200 stickers for custom emoji sticker sets and less than 120 otherwise
-//@sticker Sticker to add to the set
-addStickerToSet user_id:int53 name:string sticker:inputSticker = Ok;
-
-//@description Replaces existing sticker in a set. The function is equivalent to removeStickerFromSet, then addStickerToSet, then setStickerPositionInSet
-//@user_id Sticker set owner; ignored for regular users
-//@name Sticker set name. The sticker set must be owned by the current user
-//@old_sticker Sticker to remove from the set
-//@new_sticker Sticker to add to the set
-replaceStickerInSet user_id:int53 name:string old_sticker:InputFile new_sticker:inputSticker = Ok;
-
-//@description Sets a sticker set thumbnail
-//@user_id Sticker set owner; ignored for regular users
-//@name Sticker set name. The sticker set must be owned by the current user
-//@thumbnail Thumbnail to set; pass null to remove the sticker set thumbnail
-//@format Format of the thumbnail; pass null if thumbnail is removed
-setStickerSetThumbnail user_id:int53 name:string thumbnail:InputFile format:StickerFormat = Ok;
-
-//@description Sets a custom emoji sticker set thumbnail
-//@name Sticker set name. The sticker set must be owned by the current user
-//@custom_emoji_id Identifier of the custom emoji from the sticker set, which will be set as sticker set thumbnail; pass 0 to remove the sticker set thumbnail
-setCustomEmojiStickerSetThumbnail name:string custom_emoji_id:int64 = Ok;
-
-//@description Sets a sticker set title @name Sticker set name. The sticker set must be owned by the current user @title New sticker set title
-setStickerSetTitle name:string title:string = Ok;
-
-//@description Completely deletes a sticker set @name Sticker set name. The sticker set must be owned by the current user
-deleteStickerSet name:string = Ok;
-
-//@description Changes the position of a sticker in the set to which it belongs. The sticker set must be owned by the current user
-//@sticker Sticker
-//@position New position of the sticker in the set, 0-based
-setStickerPositionInSet sticker:InputFile position:int32 = Ok;
-
-//@description Removes a sticker from the set to which it belongs. The sticker set must be owned by the current user @sticker Sticker to remove from the set
-removeStickerFromSet sticker:InputFile = Ok;
-
-//@description Changes the list of emojis corresponding to a sticker. The sticker must belong to a regular or custom emoji sticker set that is owned by the current user
-//@sticker Sticker
-//@emojis New string with 1-20 emoji corresponding to the sticker
-setStickerEmojis sticker:InputFile emojis:string = Ok;
-
-//@description Changes the list of keywords of a sticker. The sticker must belong to a regular or custom emoji sticker set that is owned by the current user
-//@sticker Sticker
-//@keywords List of up to 20 keywords with total length up to 64 characters, which can be used to find the sticker
-setStickerKeywords sticker:InputFile keywords:vector<string> = Ok;
-
-//@description Changes the mask position of a mask sticker. The sticker must belong to a mask sticker set that is owned by the current user
-//@sticker Sticker
-//@mask_position Position where the mask is placed; pass null to remove mask position
-setStickerMaskPosition sticker:InputFile mask_position:maskPosition = Ok;
-
-//@description Returns sticker sets owned by the current user
-//@offset_sticker_set_id Identifier of the sticker set from which to return owned sticker sets; use 0 to get results from the beginning
-//@limit The maximum number of sticker sets to be returned; must be positive and can't be greater than 100. For optimal performance, the number of returned objects is chosen by TDLib and can be smaller than the specified limit
-getOwnedStickerSets offset_sticker_set_id:int64 limit:int32 = StickerSets;
-
-
-//@description Returns information about a file with a map thumbnail in PNG format. Only map thumbnail files with size less than 1MB can be downloaded
-//@location Location of the map center
-//@zoom Map zoom level; 13-20
-//@width Map width in pixels before applying scale; 16-1024
-//@height Map height in pixels before applying scale; 16-1024
-//@scale Map scale; 1-3
-//@chat_id Identifier of a chat in which the thumbnail will be shown. Use 0 if unknown
-getMapThumbnailFile location:location zoom:int32 width:int32 height:int32 scale:int32 chat_id:int53 = File;
-
-
-//@description Returns information about a limit, increased for Premium users. Returns a 404 error if the limit is unknown @limit_type Type of the limit
-getPremiumLimit limit_type:PremiumLimitType = PremiumLimit;
-
-//@description Returns information about features, available to Premium users @source Source of the request; pass null if the method is called from some non-standard source
-getPremiumFeatures source:PremiumSource = PremiumFeatures;
-
-//@description Returns examples of premium stickers for demonstration purposes
-getPremiumStickerExamples = Stickers;
-
-//@description Returns the sticker to be used as representation of the Telegram Premium subscription @month_count Number of months the Telegram Premium subscription will be active
-getPremiumInfoSticker month_count:int32 = Sticker;
-
-//@description Informs TDLib that the user viewed detailed information about a Premium feature on the Premium features screen @feature The viewed premium feature
-viewPremiumFeature feature:PremiumFeature = Ok;
-
-//@description Informs TDLib that the user clicked Premium subscription button on the Premium features screen
-clickPremiumSubscriptionButton = Ok;
-
-//@description Returns state of Telegram Premium subscription and promotion videos for Premium features
-getPremiumState = PremiumState;
-
-//@description Returns available options for gifting Telegram Premium to a user
-getPremiumGiftPaymentOptions = PremiumGiftPaymentOptions;
-
-//@description Returns available options for creating of Telegram Premium giveaway or manual distribution of Telegram Premium among chat members
-//@boosted_chat_id Identifier of the supergroup or channel chat, which will be automatically boosted by receivers of the gift codes and which is administered by the user
-getPremiumGiveawayPaymentOptions boosted_chat_id:int53 = PremiumGiveawayPaymentOptions;
-
-//@description Return information about a Telegram Premium gift code @code The code to check
-checkPremiumGiftCode code:string = PremiumGiftCodeInfo;
-
-//@description Applies a Telegram Premium gift code @code The code to apply
-applyPremiumGiftCode code:string = Ok;
-
-//@description Allows to buy a Telegram Premium subscription for another user with payment in Telegram Stars; for bots only
-//@user_id Identifier of the user which will receive Telegram Premium
-//@star_count The number of Telegram Stars to pay for subscription
-//@month_count Number of months the Telegram Premium subscription will be active for the user
-//@text Text to show to the user receiving Telegram Premium; 0-getOption("gift_text_length_max") characters. Only Bold, Italic, Underline, Strikethrough, Spoiler, and CustomEmoji entities are allowed
-giftPremiumWithStars user_id:int53 star_count:int53 month_count:int32 text:formattedText = Ok;
-
-//@description Launches a prepaid giveaway
-//@giveaway_id Unique identifier of the prepaid giveaway
-//@parameters Giveaway parameters
-//@winner_count The number of users to receive giveaway prize
-//@star_count The number of Telegram Stars to be distributed through the giveaway; pass 0 for Telegram Premium giveaways
-launchPrepaidGiveaway giveaway_id:int64 parameters:giveawayParameters winner_count:int32 star_count:int53 = Ok;
-
-//@description Returns information about a giveaway
-//@chat_id Identifier of the channel chat which started the giveaway
-//@message_id Identifier of the giveaway or a giveaway winners message in the chat
-getGiveawayInfo chat_id:int53 message_id:int53 = GiveawayInfo;
-
-//@description Returns available options for Telegram Stars purchase
-getStarPaymentOptions = StarPaymentOptions;
-
-//@description Returns available options for Telegram Stars gifting @user_id Identifier of the user that will receive Telegram Stars; pass 0 to get options for an unspecified user
-getStarGiftPaymentOptions user_id:int53 = StarPaymentOptions;
-
-//@description Returns available options for Telegram Star giveaway creation
-getStarGiveawayPaymentOptions = StarGiveawayPaymentOptions;
-
-//@description Returns the list of Telegram Star transactions for the specified owner
-//@owner_id Identifier of the owner of the Telegram Stars; can be the identifier of the current user, identifier of an owned bot,
-//-or identifier of a supergroup or a channel chat with supergroupFullInfo.can_get_star_revenue_statistics == true
-//@subscription_id If non-empty, only transactions related to the Star Subscription will be returned
-//@direction Direction of the transactions to receive; pass null to get all transactions
-//@offset Offset of the first transaction to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of transactions to return
-getStarTransactions owner_id:MessageSender subscription_id:string direction:StarTransactionDirection offset:string limit:int32 = StarTransactions;
-
-//@description Returns the list of Telegram Star subscriptions for the current user
-//@only_expiring Pass true to receive only expiring subscriptions for which there are no enough Telegram Stars to extend
-//@offset Offset of the first subscription to return as received from the previous request; use empty string to get the first chunk of results
-getStarSubscriptions only_expiring:Bool offset:string = StarSubscriptions;
-
-//@description Checks whether an in-store purchase is possible. Must be called before any in-store purchase @purpose Transaction purpose
-canPurchaseFromStore purpose:StorePaymentPurpose = Ok;
-
-//@description Informs server about a purchase through App Store. For official applications only @receipt App Store receipt @purpose Transaction purpose
-assignAppStoreTransaction receipt:bytes purpose:StorePaymentPurpose = Ok;
-
-//@description Informs server about a purchase through Google Play. For official applications only
-//@package_name Application package name
-//@store_product_id Identifier of the purchased store product
-//@purchase_token Google Play purchase token
-//@purpose Transaction purpose
-assignGooglePlayTransaction package_name:string store_product_id:string purchase_token:string purpose:StorePaymentPurpose = Ok;
-
-//@description Cancels or re-enables Telegram Star subscription
-//@subscription_id Identifier of the subscription to change
-//@is_canceled New value of is_canceled
-editStarSubscription subscription_id:string is_canceled:Bool = Ok;
-
-//@description Cancels or re-enables Telegram Star subscription for a user; for bots only
-//@user_id User identifier
-//@telegram_payment_charge_id Telegram payment identifier of the subscription
-//@is_canceled Pass true to cancel the subscription; pass false to allow the user to enable it
-editUserStarSubscription user_id:int53 telegram_payment_charge_id:string is_canceled:Bool = Ok;
-
-//@description Reuses an active Telegram Star subscription to a channel chat and joins the chat again @subscription_id Identifier of the subscription
-reuseStarSubscription subscription_id:string = Ok;
-
-
-//@description Changes affiliate program for a bot
-//@chat_id Identifier of the chat with an owned bot for which affiliate program is changed
-//@parameters Parameters of the affiliate program; pass null to close the currently active program. If there is an active program, then commission and program duration can only be increased.
-//-If the active program is scheduled to be closed, then it can't be changed anymore
-setChatAffiliateProgram chat_id:int53 parameters:affiliateProgramParameters = Ok;
-
-//@description Searches a chat with an affiliate program. Returns the chat if found and the program is active
-//@username Username of the chat
-//@referrer The referrer from an internalLinkTypeChatAffiliateProgram link
-searchChatAffiliateProgram username:string referrer:string = Chat;
-
-//@description Searches affiliate programs that can be connected to the given affiliate
-//@affiliate The affiliate for which affiliate programs are searched for
-//@sort_order Sort order for the results
-//@offset Offset of the first affiliate program to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of affiliate programs to return
-searchAffiliatePrograms affiliate:AffiliateType sort_order:AffiliateProgramSortOrder offset:string limit:int32 = FoundAffiliatePrograms;
-
-//@description Connects an affiliate program to the given affiliate. Returns information about the connected affiliate program
-//@affiliate The affiliate to which the affiliate program will be connected
-//@bot_user_id Identifier of the bot, which affiliate program is connected
-connectAffiliateProgram affiliate:AffiliateType bot_user_id:int53 = ConnectedAffiliateProgram;
-
-//@description Disconnects an affiliate program from the given affiliate and immediately deactivates its referral link. Returns updated information about the disconnected affiliate program
-//@affiliate The affiliate to which the affiliate program is connected
-//@url The referral link of the affiliate program
-disconnectAffiliateProgram affiliate:AffiliateType url:string = ConnectedAffiliateProgram;
-
-//@description Returns an affiliate program that were connected to the given affiliate by identifier of the bot that created the program
-//@affiliate The affiliate to which the affiliate program will be connected
-//@bot_user_id Identifier of the bot that created the program
-getConnectedAffiliateProgram affiliate:AffiliateType bot_user_id:int53 = ConnectedAffiliateProgram;
-
-//@description Returns affiliate programs that were connected to the given affiliate
-//@affiliate The affiliate to which the affiliate program were connected
-//@offset Offset of the first affiliate program to return as received from the previous request; use empty string to get the first chunk of results
-//@limit The maximum number of affiliate programs to return
-getConnectedAffiliatePrograms affiliate:AffiliateType offset:string limit:int32 = ConnectedAffiliatePrograms;
-
-
-//@description Returns information about features, available to Business users @source Source of the request; pass null if the method is called from settings or some non-standard source
-getBusinessFeatures source:BusinessFeature = BusinessFeatures;
-
-
-//@description Accepts Telegram terms of services @terms_of_service_id Terms of service identifier
-acceptTermsOfService terms_of_service_id:string = Ok;
-
-
-//@description Searches specified query by word prefixes in the provided strings. Returns 0-based positions of strings that matched. Can be called synchronously
-//@strings The strings to search in for the query
-//@query Query to search for
-//@limit The maximum number of objects to return
-//@return_none_for_empty_query Pass true to receive no results for an empty query
-searchStringsByPrefix strings:vector<string> query:string limit:int32 return_none_for_empty_query:Bool = FoundPositions;
-
-
-//@description Sends a custom request; for bots only @method The method name @parameters JSON-serialized method parameters
-sendCustomRequest method:string parameters:string = CustomRequestResult;
-
-//@description Answers a custom query; for bots only @custom_query_id Identifier of a custom query @data JSON-serialized answer to the query
-answerCustomQuery custom_query_id:int64 data:string = Ok;
-
-
-//@description Succeeds after a specified amount of time has passed. Can be called before initialization @seconds Number of seconds before the function returns
-setAlarm seconds:double = Ok;
-
-
-//@description Returns information about existing countries. Can be called before authorization
-getCountries = Countries;
-
-//@description Uses the current IP address to find the current country. Returns two-letter ISO 3166-1 alpha-2 country code. Can be called before authorization
-getCountryCode = Text;
-
-//@description Returns information about a phone number by its prefix. Can be called before authorization @phone_number_prefix The phone number prefix
-getPhoneNumberInfo phone_number_prefix:string = PhoneNumberInfo;
-
-//@description Returns information about a phone number by its prefix synchronously. getCountries must be called at least once after changing localization to the specified language if properly localized country information is expected. Can be called synchronously
-//@language_code A two-letter ISO 639-1 language code for country information localization
-//@phone_number_prefix The phone number prefix
-getPhoneNumberInfoSync language_code:string phone_number_prefix:string = PhoneNumberInfo;
-
-
-//@description Returns information about a given collectible item that was purchased at https://fragment.com
-//@type Type of the collectible item. The item must be used by a user and must be visible to the current user
-getCollectibleItemInfo type:CollectibleItemType = CollectibleItemInfo;
-
-
-//@description Returns information about a tg:// deep link. Use "tg://need_update_for_some_feature" or "tg:some_unsupported_feature" for testing. Returns a 404 error for unknown links. Can be called before authorization @link The link
-getDeepLinkInfo link:string = DeepLinkInfo;
-
-
-//@description Returns application config, provided by the server. Can be called before authorization
-getApplicationConfig = JsonValue;
-
-//@description Saves application log event on the server. Can be called before authorization @type Event type @chat_id Optional chat identifier, associated with the event @data The log event data
-saveApplicationLogEvent type:string chat_id:int53 data:JsonValue = Ok;
-
-//@description Returns the link for downloading official Telegram application to be used when the current user invites friends to Telegram
-getApplicationDownloadLink = HttpUrl;
-
-
-//@description Adds a proxy server for network requests. Can be called before authorization
-//@server Proxy server domain or IP address
-//@port Proxy server port
-//@enable Pass true to immediately enable the proxy
-//@type Proxy type
-addProxy server:string port:int32 enable:Bool type:ProxyType = Proxy;
-
-//@description Edits an existing proxy server for network requests. Can be called before authorization
-//@proxy_id Proxy identifier
-//@server Proxy server domain or IP address
-//@port Proxy server port
-//@enable Pass true to immediately enable the proxy
-//@type Proxy type
-editProxy proxy_id:int32 server:string port:int32 enable:Bool type:ProxyType = Proxy;
-
-//@description Enables a proxy. Only one proxy can be enabled at a time. Can be called before authorization @proxy_id Proxy identifier
-enableProxy proxy_id:int32 = Ok;
-
-//@description Disables the currently enabled proxy. Can be called before authorization
-disableProxy = Ok;
-
-//@description Removes a proxy server. Can be called before authorization @proxy_id Proxy identifier
-removeProxy proxy_id:int32 = Ok;
-
-//@description Returns the list of proxies that are currently set up. Can be called before authorization
-getProxies = Proxies;
-
-//@description Returns an HTTPS link, which can be used to add a proxy. Available only for SOCKS5 and MTProto proxies. Can be called before authorization @proxy_id Proxy identifier
-getProxyLink proxy_id:int32 = HttpUrl;
-
-//@description Computes time needed to receive a response from a Telegram server through a proxy. Can be called before authorization @proxy_id Proxy identifier. Use 0 to ping a Telegram server without a proxy
-pingProxy proxy_id:int32 = Seconds;
-
-
-//@description Sets new log stream for internal logging of TDLib. Can be called synchronously @log_stream New log stream
-setLogStream log_stream:LogStream = Ok;
-
-//@description Returns information about currently used log stream for internal logging of TDLib. Can be called synchronously
-getLogStream = LogStream;
-
-//@description Sets the verbosity level of the internal logging of TDLib. Can be called synchronously
-//@new_verbosity_level New value of the verbosity level for logging. Value 0 corresponds to fatal errors, value 1 corresponds to errors, value 2 corresponds to warnings and debug warnings,
-//-value 3 corresponds to informational, value 4 corresponds to debug, value 5 corresponds to verbose debug, value greater than 5 and up to 1023 can be used to enable even more logging
-setLogVerbosityLevel new_verbosity_level:int32 = Ok;
-
-//@description Returns current verbosity level of the internal logging of TDLib. Can be called synchronously
-getLogVerbosityLevel = LogVerbosityLevel;
-
-//@description Returns the list of available TDLib internal log tags, for example, ["actor", "binlog", "connections", "notifications", "proxy"]. Can be called synchronously
-getLogTags = LogTags;
-
-//@description Sets the verbosity level for a specified TDLib internal log tag. Can be called synchronously
-//@tag Logging tag to change verbosity level
-//@new_verbosity_level New verbosity level; 1-1024
-setLogTagVerbosityLevel tag:string new_verbosity_level:int32 = Ok;
-
-//@description Returns current verbosity level for a specified TDLib internal log tag. Can be called synchronously @tag Logging tag to change verbosity level
-getLogTagVerbosityLevel tag:string = LogVerbosityLevel;
-
-//@description Adds a message to TDLib internal log. Can be called synchronously
-//@verbosity_level The minimum verbosity level needed for the message to be logged; 0-1023
-//@text Text of a message to log
-addLogMessage verbosity_level:int32 text:string = Ok;
-
-
-//@description Returns support information for the given user; for Telegram support only @user_id User identifier
-getUserSupportInfo user_id:int53 = UserSupportInfo;
-
-//@description Sets support information for the given user; for Telegram support only @user_id User identifier @message New information message
-setUserSupportInfo user_id:int53 message:formattedText = UserSupportInfo;
-
-//@description Returns localized name of the Telegram support user; for Telegram support only
-getSupportName = Text;
-
-
-//@description Does nothing; for testing only. This is an offline method. Can be called before authorization
-testCallEmpty = Ok;
-
-//@description Returns the received string; for testing only. This is an offline method. Can be called before authorization @x String to return
-testCallString x:string = TestString;
-
-//@description Returns the received bytes; for testing only. This is an offline method. Can be called before authorization @x Bytes to return
-testCallBytes x:bytes = TestBytes;
-
-//@description Returns the received vector of numbers; for testing only. This is an offline method. Can be called before authorization @x Vector of numbers to return
-testCallVectorInt x:vector<int32> = TestVectorInt;
-
-//@description Returns the received vector of objects containing a number; for testing only. This is an offline method. Can be called before authorization @x Vector of objects to return
-testCallVectorIntObject x:vector<testInt> = TestVectorIntObject;
-
-//@description Returns the received vector of strings; for testing only. This is an offline method. Can be called before authorization @x Vector of strings to return
-testCallVectorString x:vector<string> = TestVectorString;
-
-//@description Returns the received vector of objects containing a string; for testing only. This is an offline method. Can be called before authorization @x Vector of objects to return
-testCallVectorStringObject x:vector<testString> = TestVectorStringObject;
-
-//@description Returns the squared received number; for testing only. This is an offline method. Can be called before authorization @x Number to square
-testSquareInt x:int32 = TestInt;
-
-//@description Sends a simple network request to the Telegram servers; for testing only. Can be called before authorization
-testNetwork = Ok;
-
-//@description Sends a simple network request to the Telegram servers via proxy; for testing only. Can be called before authorization
-//@server Proxy server domain or IP address
-//@port Proxy server port
-//@type Proxy type
-//@dc_id Identifier of a datacenter with which to test connection
-//@timeout The maximum overall timeout for the request
-testProxy server:string port:int32 type:ProxyType dc_id:int32 timeout:double = Ok;
-
-//@description Forces an updates.getDifference call to the Telegram servers; for testing only
-testGetDifference = Ok;
-
-//@description Does nothing and ensures that the Update object is used; for testing only. This is an offline method. Can be called before authorization
-testUseUpdate = Update;
-
-//@description Returns the specified error and ensures that the Error object is used; for testing only. Can be called synchronously @error The error to be returned
-testReturnError error:error = Error;
diff --git a/third-party/td/td/td/generate/scheme/telegram_api.tl b/third-party/td/td/td/generate/scheme/telegram_api.tl
deleted file mode 100644
index 76f2b9189b..0000000000
--- a/third-party/td/td/td/generate/scheme/telegram_api.tl
+++ /dev/null
@@ -1,2705 +0,0 @@
-int ? = Int;
-long ? = Long;
-double ? = Double;
-string ? = String;
-
-bytes = Bytes;
-
-true#3fedd339 = True;
-
-boolFalse#bc799737 = Bool;
-boolTrue#997275b5 = Bool;
-
-vector#1cb5c415 {t:Type} # [ t ] = Vector t;
-
-error#c4b9f9bb code:int text:string = Error;
-
-ipPort#d433ad73 ipv4:int port:int = IpPort;
-ipPortSecret#37982646 ipv4:int port:int secret:bytes = IpPort;
-accessPointRule#4679b65f phone_prefix_rules:string dc_id:int ips:vector<IpPort> = AccessPointRule;
-help.configSimple#5a592a6c date:int expires:int rules:vector<AccessPointRule> = help.ConfigSimple;
-
-inputPeerPhotoFileLocationLegacy#27d69997 flags:# big:flags.0?true peer:InputPeer volume_id:long local_id:int = InputFileLocation;
-inputStickerSetThumbLegacy#dbaeae9 stickerset:InputStickerSet volume_id:long local_id:int = InputFileLocation;
-
----functions---
-
-test.useConfigSimple = help.ConfigSimple;
-test.parseInputAppEvent = InputAppEvent;
-
-invokeWithBusinessConnectionPrefix#dd289f8e connection_id:string = Error;
-invokeWithGooglePlayIntegrityPrefix#1df92984 nonce:string token:string = Error;
-invokeWithApnsSecretPrefix#0dae54f8 nonce:string secret:string = Error;
-invokeWithReCaptchaPrefix#adbb0f94 token:string = Error;
-
----types---
-
-inputPeerEmpty#7f3b18ea = InputPeer;
-inputPeerSelf#7da07ec9 = InputPeer;
-inputPeerChat#35a95cb9 chat_id:long = InputPeer;
-inputPeerUser#dde8a54c user_id:long access_hash:long = InputPeer;
-inputPeerChannel#27bcbbfc channel_id:long access_hash:long = InputPeer;
-inputPeerUserFromMessage#a87b0a1c peer:InputPeer msg_id:int user_id:long = InputPeer;
-inputPeerChannelFromMessage#bd2a0840 peer:InputPeer msg_id:int channel_id:long = InputPeer;
-
-inputUserEmpty#b98886cf = InputUser;
-inputUserSelf#f7c1b13f = InputUser;
-inputUser#f21158c6 user_id:long access_hash:long = InputUser;
-inputUserFromMessage#1da448e2 peer:InputPeer msg_id:int user_id:long = InputUser;
-
-inputPhoneContact#f392b7f4 client_id:long phone:string first_name:string last_name:string = InputContact;
-
-inputFile#f52ff27f id:long parts:int name:string md5_checksum:string = InputFile;
-inputFileBig#fa4f0bb5 id:long parts:int name:string = InputFile;
-inputFileStoryDocument#62dc8b48 id:InputDocument = InputFile;
-
-inputMediaEmpty#9664f57f = InputMedia;
-inputMediaUploadedPhoto#1e287d04 flags:# spoiler:flags.2?true file:InputFile stickers:flags.0?Vector<InputDocument> ttl_seconds:flags.1?int = InputMedia;
-inputMediaPhoto#b3ba0635 flags:# spoiler:flags.1?true id:InputPhoto ttl_seconds:flags.0?int = InputMedia;
-inputMediaGeoPoint#f9c44144 geo_point:InputGeoPoint = InputMedia;
-inputMediaContact#f8ab7dfb phone_number:string first_name:string last_name:string vcard:string = InputMedia;
-inputMediaUploadedDocument#37c9330 flags:# nosound_video:flags.3?true force_file:flags.4?true spoiler:flags.5?true file:InputFile thumb:flags.2?InputFile mime_type:string attributes:Vector<DocumentAttribute> stickers:flags.0?Vector<InputDocument> video_cover:flags.6?InputPhoto video_timestamp:flags.7?int ttl_seconds:flags.1?int = InputMedia;
-inputMediaDocument#a8763ab5 flags:# spoiler:flags.2?true id:InputDocument video_cover:flags.3?InputPhoto video_timestamp:flags.4?int ttl_seconds:flags.0?int query:flags.1?string = InputMedia;
-inputMediaVenue#c13d1c11 geo_point:InputGeoPoint title:string address:string provider:string venue_id:string venue_type:string = InputMedia;
-inputMediaPhotoExternal#e5bbfe1a flags:# spoiler:flags.1?true url:string ttl_seconds:flags.0?int = InputMedia;
-inputMediaDocumentExternal#779600f9 flags:# spoiler:flags.1?true url:string ttl_seconds:flags.0?int video_cover:flags.2?InputPhoto video_timestamp:flags.3?int = InputMedia;
-inputMediaGame#d33f43f3 id:InputGame = InputMedia;
-inputMediaInvoice#405fef0d flags:# title:string description:string photo:flags.0?InputWebDocument invoice:Invoice payload:bytes provider:flags.3?string provider_data:DataJSON start_param:flags.1?string extended_media:flags.2?InputMedia = InputMedia;
-inputMediaGeoLive#971fa843 flags:# stopped:flags.0?true geo_point:InputGeoPoint heading:flags.2?int period:flags.1?int proximity_notification_radius:flags.3?int = InputMedia;
-inputMediaPoll#f94e5f1 flags:# poll:Poll correct_answers:flags.0?Vector<bytes> solution:flags.1?string solution_entities:flags.1?Vector<MessageEntity> = InputMedia;
-inputMediaDice#e66fbf7b emoticon:string = InputMedia;
-inputMediaStory#89fdd778 peer:InputPeer id:int = InputMedia;
-inputMediaWebPage#c21b8849 flags:# force_large_media:flags.0?true force_small_media:flags.1?true optional:flags.2?true url:string = InputMedia;
-inputMediaPaidMedia#c4103386 flags:# stars_amount:long extended_media:Vector<InputMedia> payload:flags.0?string = InputMedia;
-
-inputChatPhotoEmpty#1ca48f57 = InputChatPhoto;
-inputChatUploadedPhoto#bdcdaec0 flags:# file:flags.0?InputFile video:flags.1?InputFile video_start_ts:flags.2?double video_emoji_markup:flags.3?VideoSize = InputChatPhoto;
-inputChatPhoto#8953ad37 id:InputPhoto = InputChatPhoto;
-
-inputGeoPointEmpty#e4c123d6 = InputGeoPoint;
-inputGeoPoint#48222faf flags:# lat:double long:double accuracy_radius:flags.0?int = InputGeoPoint;
-
-inputPhotoEmpty#1cd7bf0d = InputPhoto;
-inputPhoto#3bb3b94a id:long access_hash:long file_reference:bytes = InputPhoto;
-
-inputFileLocation#dfdaabe1 volume_id:long local_id:int secret:long file_reference:bytes = InputFileLocation;
-inputEncryptedFileLocation#f5235d55 id:long access_hash:long = InputFileLocation;
-inputDocumentFileLocation#bad07584 id:long access_hash:long file_reference:bytes thumb_size:string = InputFileLocation;
-inputSecureFileLocation#cbc7ee28 id:long access_hash:long = InputFileLocation;
-inputTakeoutFileLocation#29be5899 = InputFileLocation;
-inputPhotoFileLocation#40181ffe id:long access_hash:long file_reference:bytes thumb_size:string = InputFileLocation;
-inputPhotoLegacyFileLocation#d83466f3 id:long access_hash:long file_reference:bytes volume_id:long local_id:int secret:long = InputFileLocation;
-inputPeerPhotoFileLocation#37257e99 flags:# big:flags.0?true peer:InputPeer photo_id:long = InputFileLocation;
-inputStickerSetThumb#9d84f3db stickerset:InputStickerSet thumb_version:int = InputFileLocation;
-inputGroupCallStream#598a92a flags:# call:InputGroupCall time_ms:long scale:int video_channel:flags.0?int video_quality:flags.0?int = InputFileLocation;
-
-peerUser#59511722 user_id:long = Peer;
-peerChat#36c6019a chat_id:long = Peer;
-peerChannel#a2a5371e channel_id:long = Peer;
-
-storage.fileUnknown#aa963b05 = storage.FileType;
-storage.filePartial#40bc6f52 = storage.FileType;
-storage.fileJpeg#7efe0e = storage.FileType;
-storage.fileGif#cae1aadf = storage.FileType;
-storage.filePng#a4f63c0 = storage.FileType;
-storage.filePdf#ae1e508d = storage.FileType;
-storage.fileMp3#528a0677 = storage.FileType;
-storage.fileMov#4b09ebbc = storage.FileType;
-storage.fileMp4#b3cea0e4 = storage.FileType;
-storage.fileWebp#1081464c = storage.FileType;
-
-userEmpty#d3bc4b7a id:long = User;
-user#20b1422 flags:# self:flags.10?true contact:flags.11?true mutual_contact:flags.12?true deleted:flags.13?true bot:flags.14?true bot_chat_history:flags.15?true bot_nochats:flags.16?true verified:flags.17?true restricted:flags.18?true min:flags.20?true bot_inline_geo:flags.21?true support:flags.23?true scam:flags.24?true apply_min_photo:flags.25?true fake:flags.26?true bot_attach_menu:flags.27?true premium:flags.28?true attach_menu_enabled:flags.29?true flags2:# bot_can_edit:flags2.1?true close_friend:flags2.2?true stories_hidden:flags2.3?true stories_unavailable:flags2.4?true contact_require_premium:flags2.10?true bot_business:flags2.11?true bot_has_main_app:flags2.13?true id:long access_hash:flags.0?long first_name:flags.1?string last_name:flags.2?string username:flags.3?string phone:flags.4?string photo:flags.5?UserProfilePhoto status:flags.6?UserStatus bot_info_version:flags.14?int restriction_reason:flags.18?Vector<RestrictionReason> bot_inline_placeholder:flags.19?string lang_code:flags.22?string emoji_status:flags.30?EmojiStatus usernames:flags2.0?Vector<Username> stories_max_id:flags2.5?int color:flags2.8?PeerColor profile_color:flags2.9?PeerColor bot_active_users:flags2.12?int bot_verification_icon:flags2.14?long send_paid_messages_stars:flags2.15?long = User;
-
-userProfilePhotoEmpty#4f11bae1 = UserProfilePhoto;
-userProfilePhoto#82d1f706 flags:# has_video:flags.0?true personal:flags.2?true photo_id:long stripped_thumb:flags.1?bytes dc_id:int = UserProfilePhoto;
-
-userStatusEmpty#9d05049 = UserStatus;
-userStatusOnline#edb93949 expires:int = UserStatus;
-userStatusOffline#8c703f was_online:int = UserStatus;
-userStatusRecently#7b197dc8 flags:# by_me:flags.0?true = UserStatus;
-userStatusLastWeek#541a1d1a flags:# by_me:flags.0?true = UserStatus;
-userStatusLastMonth#65899777 flags:# by_me:flags.0?true = UserStatus;
-
-chatEmpty#29562865 id:long = Chat;
-chat#41cbf256 flags:# creator:flags.0?true left:flags.2?true deactivated:flags.5?true call_active:flags.23?true call_not_empty:flags.24?true noforwards:flags.25?true id:long title:string photo:ChatPhoto participants_count:int date:int version:int migrated_to:flags.6?InputChannel admin_rights:flags.14?ChatAdminRights default_banned_rights:flags.18?ChatBannedRights = Chat;
-chatForbidden#6592a1a7 id:long title:string = Chat;
-channel#7482147e flags:# creator:flags.0?true left:flags.2?true broadcast:flags.5?true verified:flags.7?true megagroup:flags.8?true restricted:flags.9?true signatures:flags.11?true min:flags.12?true scam:flags.19?true has_link:flags.20?true has_geo:flags.21?true slowmode_enabled:flags.22?true call_active:flags.23?true call_not_empty:flags.24?true fake:flags.25?true gigagroup:flags.26?true noforwards:flags.27?true join_to_send:flags.28?true join_request:flags.29?true forum:flags.30?true flags2:# stories_hidden:flags2.1?true stories_hidden_min:flags2.2?true stories_unavailable:flags2.3?true signature_profiles:flags2.12?true id:long access_hash:flags.13?long title:string username:flags.6?string photo:ChatPhoto date:int restriction_reason:flags.9?Vector<RestrictionReason> admin_rights:flags.14?ChatAdminRights banned_rights:flags.15?ChatBannedRights default_banned_rights:flags.18?ChatBannedRights participants_count:flags.17?int usernames:flags2.0?Vector<Username> stories_max_id:flags2.4?int color:flags2.7?PeerColor profile_color:flags2.8?PeerColor emoji_status:flags2.9?EmojiStatus level:flags2.10?int subscription_until_date:flags2.11?int bot_verification_icon:flags2.13?long send_paid_messages_stars:flags2.14?long = Chat;
-channelForbidden#17d493d5 flags:# broadcast:flags.5?true megagroup:flags.8?true id:long access_hash:long title:string until_date:flags.16?int = Chat;
-
-chatFull#2633421b flags:# can_set_username:flags.7?true has_scheduled:flags.8?true translations_disabled:flags.19?true id:long about:string participants:ChatParticipants chat_photo:flags.2?Photo notify_settings:PeerNotifySettings exported_invite:flags.13?ExportedChatInvite bot_info:flags.3?Vector<BotInfo> pinned_msg_id:flags.6?int folder_id:flags.11?int call:flags.12?InputGroupCall ttl_period:flags.14?int groupcall_default_join_as:flags.15?Peer theme_emoticon:flags.16?string requests_pending:flags.17?int recent_requesters:flags.17?Vector<long> available_reactions:flags.18?ChatReactions reactions_limit:flags.20?int = ChatFull;
-channelFull#52d6806b flags:# can_view_participants:flags.3?true can_set_username:flags.6?true can_set_stickers:flags.7?true hidden_prehistory:flags.10?true can_set_location:flags.16?true has_scheduled:flags.19?true can_view_stats:flags.20?true blocked:flags.22?true flags2:# can_delete_channel:flags2.0?true antispam:flags2.1?true participants_hidden:flags2.2?true translations_disabled:flags2.3?true stories_pinned_available:flags2.5?true view_forum_as_messages:flags2.6?true restricted_sponsored:flags2.11?true can_view_revenue:flags2.12?true paid_media_allowed:flags2.14?true can_view_stars_revenue:flags2.15?true paid_reactions_available:flags2.16?true stargifts_available:flags2.19?true paid_messages_available:flags2.20?true id:long about:string participants_count:flags.0?int admins_count:flags.1?int kicked_count:flags.2?int banned_count:flags.2?int online_count:flags.13?int read_inbox_max_id:int read_outbox_max_id:int unread_count:int chat_photo:Photo notify_settings:PeerNotifySettings exported_invite:flags.23?ExportedChatInvite bot_info:Vector<BotInfo> migrated_from_chat_id:flags.4?long migrated_from_max_id:flags.4?int pinned_msg_id:flags.5?int stickerset:flags.8?StickerSet available_min_id:flags.9?int folder_id:flags.11?int linked_chat_id:flags.14?long location:flags.15?ChannelLocation slowmode_seconds:flags.17?int slowmode_next_send_date:flags.18?int stats_dc:flags.12?int pts:int call:flags.21?InputGroupCall ttl_period:flags.24?int pending_suggestions:flags.25?Vector<string> groupcall_default_join_as:flags.26?Peer theme_emoticon:flags.27?string requests_pending:flags.28?int recent_requesters:flags.28?Vector<long> default_send_as:flags.29?Peer available_reactions:flags.30?ChatReactions reactions_limit:flags2.13?int stories:flags2.4?PeerStories wallpaper:flags2.7?WallPaper boosts_applied:flags2.8?int boosts_unrestrict:flags2.9?int emojiset:flags2.10?StickerSet bot_verification:flags2.17?BotVerification stargifts_count:flags2.18?int = ChatFull;
-
-chatParticipant#c02d4007 user_id:long inviter_id:long date:int = ChatParticipant;
-chatParticipantCreator#e46bcee4 user_id:long = ChatParticipant;
-chatParticipantAdmin#a0933f5b user_id:long inviter_id:long date:int = ChatParticipant;
-
-chatParticipantsForbidden#8763d3e1 flags:# chat_id:long self_participant:flags.0?ChatParticipant = ChatParticipants;
-chatParticipants#3cbc93f8 chat_id:long participants:Vector<ChatParticipant> version:int = ChatParticipants;
-
-chatPhotoEmpty#37c1011c = ChatPhoto;
-chatPhoto#1c6e1c11 flags:# has_video:flags.0?true photo_id:long stripped_thumb:flags.1?bytes dc_id:int = ChatPhoto;
-
-messageEmpty#90a6ca84 flags:# id:int peer_id:flags.0?Peer = Message;
-message#eabcdd4d flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true silent:flags.13?true post:flags.14?true from_scheduled:flags.18?true legacy:flags.19?true edit_hide:flags.21?true pinned:flags.24?true noforwards:flags.26?true invert_media:flags.27?true flags2:# offline:flags2.1?true video_processing_pending:flags2.4?true id:int from_id:flags.8?Peer from_boosts_applied:flags.29?int peer_id:Peer saved_peer_id:flags.28?Peer fwd_from:flags.2?MessageFwdHeader via_bot_id:flags.11?long via_business_bot_id:flags2.0?long reply_to:flags.3?MessageReplyHeader date:int message:string media:flags.9?MessageMedia reply_markup:flags.6?ReplyMarkup entities:flags.7?Vector<MessageEntity> views:flags.10?int forwards:flags.10?int replies:flags.23?MessageReplies edit_date:flags.15?int post_author:flags.16?string grouped_id:flags.17?long reactions:flags.20?MessageReactions restriction_reason:flags.22?Vector<RestrictionReason> ttl_period:flags.25?int quick_reply_shortcut_id:flags.30?int effect:flags2.2?long factcheck:flags2.3?FactCheck report_delivery_until_date:flags2.5?int paid_message_stars:flags2.6?long = Message;
-messageService#d3d28540 flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true reactions_are_possible:flags.9?true silent:flags.13?true post:flags.14?true legacy:flags.19?true id:int from_id:flags.8?Peer peer_id:Peer reply_to:flags.3?MessageReplyHeader date:int action:MessageAction reactions:flags.20?MessageReactions ttl_period:flags.25?int = Message;
-
-messageMediaEmpty#3ded6320 = MessageMedia;
-messageMediaPhoto#695150d7 flags:# spoiler:flags.3?true photo:flags.0?Photo ttl_seconds:flags.2?int = MessageMedia;
-messageMediaGeo#56e0d474 geo:GeoPoint = MessageMedia;
-messageMediaContact#70322949 phone_number:string first_name:string last_name:string vcard:string user_id:long = MessageMedia;
-messageMediaUnsupported#9f84f49e = MessageMedia;
-messageMediaDocument#52d8ccd9 flags:# nopremium:flags.3?true spoiler:flags.4?true video:flags.6?true round:flags.7?true voice:flags.8?true document:flags.0?Document alt_documents:flags.5?Vector<Document> video_cover:flags.9?Photo video_timestamp:flags.10?int ttl_seconds:flags.2?int = MessageMedia;
-messageMediaWebPage#ddf10c3b flags:# force_large_media:flags.0?true force_small_media:flags.1?true manual:flags.3?true safe:flags.4?true webpage:WebPage = MessageMedia;
-messageMediaVenue#2ec0533f geo:GeoPoint title:string address:string provider:string venue_id:string venue_type:string = MessageMedia;
-messageMediaGame#fdb19008 game:Game = MessageMedia;
-messageMediaInvoice#f6a548d3 flags:# shipping_address_requested:flags.1?true test:flags.3?true title:string description:string photo:flags.0?WebDocument receipt_msg_id:flags.2?int currency:string total_amount:long start_param:string extended_media:flags.4?MessageExtendedMedia = MessageMedia;
-messageMediaGeoLive#b940c666 flags:# geo:GeoPoint heading:flags.0?int period:int proximity_notification_radius:flags.1?int = MessageMedia;
-messageMediaPoll#4bd6e798 poll:Poll results:PollResults = MessageMedia;
-messageMediaDice#3f7ee58b value:int emoticon:string = MessageMedia;
-messageMediaStory#68cb6283 flags:# via_mention:flags.1?true peer:Peer id:int story:flags.0?StoryItem = MessageMedia;
-messageMediaGiveaway#aa073beb flags:# only_new_subscribers:flags.0?true winners_are_visible:flags.2?true channels:Vector<long> countries_iso2:flags.1?Vector<string> prize_description:flags.3?string quantity:int months:flags.4?int stars:flags.5?long until_date:int = MessageMedia;
-messageMediaGiveawayResults#ceaa3ea1 flags:# only_new_subscribers:flags.0?true refunded:flags.2?true channel_id:long additional_peers_count:flags.3?int launch_msg_id:int winners_count:int unclaimed_count:int winners:Vector<long> months:flags.4?int stars:flags.5?long prize_description:flags.1?string until_date:int = MessageMedia;
-messageMediaPaidMedia#a8852491 stars_amount:long extended_media:Vector<MessageExtendedMedia> = MessageMedia;
-
-messageActionEmpty#b6aef7b0 = MessageAction;
-messageActionChatCreate#bd47cbad title:string users:Vector<long> = MessageAction;
-messageActionChatEditTitle#b5a1ce5a title:string = MessageAction;
-messageActionChatEditPhoto#7fcb13a8 photo:Photo = MessageAction;
-messageActionChatDeletePhoto#95e3fbef = MessageAction;
-messageActionChatAddUser#15cefd00 users:Vector<long> = MessageAction;
-messageActionChatDeleteUser#a43f30cc user_id:long = MessageAction;
-messageActionChatJoinedByLink#31224c3 inviter_id:long = MessageAction;
-messageActionChannelCreate#95d2ac92 title:string = MessageAction;
-messageActionChatMigrateTo#e1037f92 channel_id:long = MessageAction;
-messageActionChannelMigrateFrom#ea3948e9 title:string chat_id:long = MessageAction;
-messageActionPinMessage#94bd38ed = MessageAction;
-messageActionHistoryClear#9fbab604 = MessageAction;
-messageActionGameScore#92a72876 game_id:long score:int = MessageAction;
-messageActionPaymentSentMe#ffa00ccc flags:# recurring_init:flags.2?true recurring_used:flags.3?true currency:string total_amount:long payload:bytes info:flags.0?PaymentRequestedInfo shipping_option_id:flags.1?string charge:PaymentCharge subscription_until_date:flags.4?int = MessageAction;
-messageActionPaymentSent#c624b16e flags:# recurring_init:flags.2?true recurring_used:flags.3?true currency:string total_amount:long invoice_slug:flags.0?string subscription_until_date:flags.4?int = MessageAction;
-messageActionPhoneCall#80e11a7f flags:# video:flags.2?true call_id:long reason:flags.0?PhoneCallDiscardReason duration:flags.1?int = MessageAction;
-messageActionScreenshotTaken#4792929b = MessageAction;
-messageActionCustomAction#fae69f56 message:string = MessageAction;
-messageActionBotAllowed#c516d679 flags:# attach_menu:flags.1?true from_request:flags.3?true domain:flags.0?string app:flags.2?BotApp = MessageAction;
-messageActionSecureValuesSentMe#1b287353 values:Vector<SecureValue> credentials:SecureCredentialsEncrypted = MessageAction;
-messageActionSecureValuesSent#d95c6154 types:Vector<SecureValueType> = MessageAction;
-messageActionContactSignUp#f3f25f76 = MessageAction;
-messageActionGeoProximityReached#98e0d697 from_id:Peer to_id:Peer distance:int = MessageAction;
-messageActionGroupCall#7a0d7f42 flags:# call:InputGroupCall duration:flags.0?int = MessageAction;
-messageActionInviteToGroupCall#502f92f7 call:InputGroupCall users:Vector<long> = MessageAction;
-messageActionSetMessagesTTL#3c134d7b flags:# period:int auto_setting_from:flags.0?long = MessageAction;
-messageActionGroupCallScheduled#b3a07661 call:InputGroupCall schedule_date:int = MessageAction;
-messageActionSetChatTheme#aa786345 emoticon:string = MessageAction;
-messageActionChatJoinedByRequest#ebbca3cb = MessageAction;
-messageActionWebViewDataSentMe#47dd8079 text:string data:string = MessageAction;
-messageActionWebViewDataSent#b4c38cb5 text:string = MessageAction;
-messageActionGiftPremium#6c6274fa flags:# currency:string amount:long months:int crypto_currency:flags.0?string crypto_amount:flags.0?long message:flags.1?TextWithEntities = MessageAction;
-messageActionTopicCreate#d999256 flags:# title:string icon_color:int icon_emoji_id:flags.0?long = MessageAction;
-messageActionTopicEdit#c0944820 flags:# title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool hidden:flags.3?Bool = MessageAction;
-messageActionSuggestProfilePhoto#57de635e photo:Photo = MessageAction;
-messageActionRequestedPeer#31518e9b button_id:int peers:Vector<Peer> = MessageAction;
-messageActionSetChatWallPaper#5060a3f4 flags:# same:flags.0?true for_both:flags.1?true wallpaper:WallPaper = MessageAction;
-messageActionGiftCode#56d03994 flags:# via_giveaway:flags.0?true unclaimed:flags.5?true boost_peer:flags.1?Peer months:int slug:string currency:flags.2?string amount:flags.2?long crypto_currency:flags.3?string crypto_amount:flags.3?long message:flags.4?TextWithEntities = MessageAction;
-messageActionGiveawayLaunch#a80f51e4 flags:# stars:flags.0?long = MessageAction;
-messageActionGiveawayResults#87e2f155 flags:# stars:flags.0?true winners_count:int unclaimed_count:int = MessageAction;
-messageActionBoostApply#cc02aa6d boosts:int = MessageAction;
-messageActionRequestedPeerSentMe#93b31848 button_id:int peers:Vector<RequestedPeer> = MessageAction;
-messageActionPaymentRefunded#41b3e202 flags:# peer:Peer currency:string total_amount:long payload:flags.0?bytes charge:PaymentCharge = MessageAction;
-messageActionGiftStars#45d5b021 flags:# currency:string amount:long stars:long crypto_currency:flags.0?string crypto_amount:flags.0?long transaction_id:flags.1?string = MessageAction;
-messageActionPrizeStars#b00c47a2 flags:# unclaimed:flags.0?true stars:long transaction_id:string boost_peer:Peer giveaway_msg_id:int = MessageAction;
-messageActionStarGift#4717e8a4 flags:# name_hidden:flags.0?true saved:flags.2?true converted:flags.3?true upgraded:flags.5?true refunded:flags.9?true can_upgrade:flags.10?true gift:StarGift message:flags.1?TextWithEntities convert_stars:flags.4?long upgrade_msg_id:flags.5?int upgrade_stars:flags.8?long from_id:flags.11?Peer peer:flags.12?Peer saved_id:flags.12?long = MessageAction;
-messageActionStarGiftUnique#acdfcb81 flags:# upgrade:flags.0?true transferred:flags.1?true saved:flags.2?true refunded:flags.5?true gift:StarGift can_export_at:flags.3?int transfer_stars:flags.4?long from_id:flags.6?Peer peer:flags.7?Peer saved_id:flags.7?long = MessageAction;
-messageActionPaidMessagesRefunded#ac1f1fcd count:int stars:long = MessageAction;
-messageActionPaidMessagesPrice#bcd71419 stars:long = MessageAction;
-
-dialog#d58a08c6 flags:# pinned:flags.2?true unread_mark:flags.3?true view_forum_as_messages:flags.6?true peer:Peer top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int notify_settings:PeerNotifySettings pts:flags.0?int draft:flags.1?DraftMessage folder_id:flags.4?int ttl_period:flags.5?int = Dialog;
-dialogFolder#71bd134c flags:# pinned:flags.2?true folder:Folder peer:Peer top_message:int unread_muted_peers_count:int unread_unmuted_peers_count:int unread_muted_messages_count:int unread_unmuted_messages_count:int = Dialog;
-
-photoEmpty#2331b22d id:long = Photo;
-photo#fb197a65 flags:# has_stickers:flags.0?true id:long access_hash:long file_reference:bytes date:int sizes:Vector<PhotoSize> video_sizes:flags.1?Vector<VideoSize> dc_id:int = Photo;
-
-photoSizeEmpty#e17e23c type:string = PhotoSize;
-photoSize#75c78e60 type:string w:int h:int size:int = PhotoSize;
-photoCachedSize#21e1ad6 type:string w:int h:int bytes:bytes = PhotoSize;
-photoStrippedSize#e0b0bc2e type:string bytes:bytes = PhotoSize;
-photoSizeProgressive#fa3efb95 type:string w:int h:int sizes:Vector<int> = PhotoSize;
-photoPathSize#d8214d41 type:string bytes:bytes = PhotoSize;
-
-geoPointEmpty#1117dd5f = GeoPoint;
-geoPoint#b2a2f663 flags:# long:double lat:double access_hash:long accuracy_radius:flags.0?int = GeoPoint;
-
-auth.sentCode#5e002502 flags:# type:auth.SentCodeType phone_code_hash:string next_type:flags.1?auth.CodeType timeout:flags.2?int = auth.SentCode;
-auth.sentCodeSuccess#2390fe44 authorization:auth.Authorization = auth.SentCode;
-auth.sentCodePaymentRequired#d7cef980 store_product:string phone_code_hash:string = auth.SentCode;
-
-auth.authorization#2ea2c0d4 flags:# setup_password_required:flags.1?true otherwise_relogin_days:flags.1?int tmp_sessions:flags.0?int future_auth_token:flags.2?bytes user:User = auth.Authorization;
-auth.authorizationSignUpRequired#44747e9a flags:# terms_of_service:flags.0?help.TermsOfService = auth.Authorization;
-
-auth.exportedAuthorization#b434e2b8 id:long bytes:bytes = auth.ExportedAuthorization;
-
-inputNotifyPeer#b8bc5b0c peer:InputPeer = InputNotifyPeer;
-inputNotifyUsers#193b4417 = InputNotifyPeer;
-inputNotifyChats#4a95e84e = InputNotifyPeer;
-inputNotifyBroadcasts#b1db7c7e = InputNotifyPeer;
-inputNotifyForumTopic#5c467992 peer:InputPeer top_msg_id:int = InputNotifyPeer;
-
-inputPeerNotifySettings#cacb6ae2 flags:# show_previews:flags.0?Bool silent:flags.1?Bool mute_until:flags.2?int sound:flags.3?NotificationSound stories_muted:flags.6?Bool stories_hide_sender:flags.7?Bool stories_sound:flags.8?NotificationSound = InputPeerNotifySettings;
-
-peerNotifySettings#99622c0c flags:# show_previews:flags.0?Bool silent:flags.1?Bool mute_until:flags.2?int ios_sound:flags.3?NotificationSound android_sound:flags.4?NotificationSound other_sound:flags.5?NotificationSound stories_muted:flags.6?Bool stories_hide_sender:flags.7?Bool stories_ios_sound:flags.8?NotificationSound stories_android_sound:flags.9?NotificationSound stories_other_sound:flags.10?NotificationSound = PeerNotifySettings;
-
-peerSettings#f47741f7 flags:# report_spam:flags.0?true add_contact:flags.1?true block_contact:flags.2?true share_contact:flags.3?true need_contacts_exception:flags.4?true report_geo:flags.5?true autoarchived:flags.7?true invite_members:flags.8?true request_chat_broadcast:flags.10?true business_bot_paused:flags.11?true business_bot_can_reply:flags.12?true geo_distance:flags.6?int request_chat_title:flags.9?string request_chat_date:flags.9?int business_bot_id:flags.13?long business_bot_manage_url:flags.13?string charge_paid_message_stars:flags.14?long registration_month:flags.15?string phone_country:flags.16?string name_change_date:flags.17?int photo_change_date:flags.18?int = PeerSettings;
-
-wallPaper#a437c3ed id:long flags:# creator:flags.0?true default:flags.1?true pattern:flags.3?true dark:flags.4?true access_hash:long slug:string document:Document settings:flags.2?WallPaperSettings = WallPaper;
-wallPaperNoFile#e0804116 id:long flags:# default:flags.1?true dark:flags.4?true settings:flags.2?WallPaperSettings = WallPaper;
-
-inputReportReasonSpam#58dbcab8 = ReportReason;
-inputReportReasonViolence#1e22c78d = ReportReason;
-inputReportReasonPornography#2e59d922 = ReportReason;
-inputReportReasonChildAbuse#adf44ee3 = ReportReason;
-inputReportReasonOther#c1e4a2b1 = ReportReason;
-inputReportReasonCopyright#9b89f93a = ReportReason;
-inputReportReasonGeoIrrelevant#dbd4feed = ReportReason;
-inputReportReasonFake#f5ddd6e7 = ReportReason;
-inputReportReasonIllegalDrugs#a8eb2be = ReportReason;
-inputReportReasonPersonalDetails#9ec7863d = ReportReason;
-
-userFull#99e78045 flags:# blocked:flags.0?true phone_calls_available:flags.4?true phone_calls_private:flags.5?true can_pin_message:flags.7?true has_scheduled:flags.12?true video_calls_available:flags.13?true voice_messages_forbidden:flags.20?true translations_disabled:flags.23?true stories_pinned_available:flags.26?true blocked_my_stories_from:flags.27?true wallpaper_overridden:flags.28?true contact_require_premium:flags.29?true read_dates_private:flags.30?true flags2:# sponsored_enabled:flags2.7?true can_view_revenue:flags2.9?true bot_can_manage_emoji_status:flags2.10?true display_gifts_button:flags2.16?true id:long about:flags.1?string settings:PeerSettings personal_photo:flags.21?Photo profile_photo:flags.2?Photo fallback_photo:flags.22?Photo notify_settings:PeerNotifySettings bot_info:flags.3?BotInfo pinned_msg_id:flags.6?int common_chats_count:int folder_id:flags.11?int ttl_period:flags.14?int theme_emoticon:flags.15?string private_forward_name:flags.16?string bot_group_admin_rights:flags.17?ChatAdminRights bot_broadcast_admin_rights:flags.18?ChatAdminRights wallpaper:flags.24?WallPaper stories:flags.25?PeerStories business_work_hours:flags2.0?BusinessWorkHours business_location:flags2.1?BusinessLocation business_greeting_message:flags2.2?BusinessGreetingMessage business_away_message:flags2.3?BusinessAwayMessage business_intro:flags2.4?BusinessIntro birthday:flags2.5?Birthday personal_channel_id:flags2.6?long personal_channel_message:flags2.6?int stargifts_count:flags2.8?int starref_program:flags2.11?StarRefProgram bot_verification:flags2.12?BotVerification send_paid_messages_stars:flags2.14?long disallowed_gifts:flags2.15?DisallowedGiftsSettings = UserFull;
-
-contact#145ade0b user_id:long mutual:Bool = Contact;
-
-importedContact#c13e3c50 user_id:long client_id:long = ImportedContact;
-
-contactStatus#16d9703b user_id:long status:UserStatus = ContactStatus;
-
-contacts.contactsNotModified#b74ba9d2 = contacts.Contacts;
-contacts.contacts#eae87e42 contacts:Vector<Contact> saved_count:int users:Vector<User> = contacts.Contacts;
-
-contacts.importedContacts#77d01c3b imported:Vector<ImportedContact> popular_invites:Vector<PopularContact> retry_contacts:Vector<long> users:Vector<User> = contacts.ImportedContacts;
-
-contacts.blocked#ade1591 blocked:Vector<PeerBlocked> chats:Vector<Chat> users:Vector<User> = contacts.Blocked;
-contacts.blockedSlice#e1664194 count:int blocked:Vector<PeerBlocked> chats:Vector<Chat> users:Vector<User> = contacts.Blocked;
-
-messages.dialogs#15ba6c40 dialogs:Vector<Dialog> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Dialogs;
-messages.dialogsSlice#71e094f3 count:int dialogs:Vector<Dialog> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Dialogs;
-messages.dialogsNotModified#f0e3e596 count:int = messages.Dialogs;
-
-messages.messages#8c718e87 messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
-messages.messagesSlice#3a54685e flags:# inexact:flags.1?true count:int next_rate:flags.0?int offset_id_offset:flags.2?int messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.Messages;
-messages.channelMessages#c776ba4e flags:# inexact:flags.1?true pts:int count:int offset_id_offset:flags.2?int messages:Vector<Message> topics:Vector<ForumTopic> chats:Vector<Chat> users:Vector<User> = messages.Messages;
-messages.messagesNotModified#74535f21 count:int = messages.Messages;
-
-messages.chats#64ff9fd5 chats:Vector<Chat> = messages.Chats;
-messages.chatsSlice#9cd81144 count:int chats:Vector<Chat> = messages.Chats;
-
-messages.chatFull#e5d7d19c full_chat:ChatFull chats:Vector<Chat> users:Vector<User> = messages.ChatFull;
-
-messages.affectedHistory#b45c69d1 pts:int pts_count:int offset:int = messages.AffectedHistory;
-
-inputMessagesFilterEmpty#57e2f66c = MessagesFilter;
-inputMessagesFilterPhotos#9609a51c = MessagesFilter;
-inputMessagesFilterVideo#9fc00e65 = MessagesFilter;
-inputMessagesFilterPhotoVideo#56e9f0e4 = MessagesFilter;
-inputMessagesFilterDocument#9eddf188 = MessagesFilter;
-inputMessagesFilterUrl#7ef0dd87 = MessagesFilter;
-inputMessagesFilterGif#ffc86587 = MessagesFilter;
-inputMessagesFilterVoice#50f5c392 = MessagesFilter;
-inputMessagesFilterMusic#3751b49e = MessagesFilter;
-inputMessagesFilterChatPhotos#3a20ecb8 = MessagesFilter;
-inputMessagesFilterPhoneCalls#80c99768 flags:# missed:flags.0?true = MessagesFilter;
-inputMessagesFilterRoundVoice#7a7c17a4 = MessagesFilter;
-inputMessagesFilterRoundVideo#b549da53 = MessagesFilter;
-inputMessagesFilterMyMentions#c1f8e69a = MessagesFilter;
-inputMessagesFilterGeo#e7026d0d = MessagesFilter;
-inputMessagesFilterContacts#e062db83 = MessagesFilter;
-inputMessagesFilterPinned#1bb00451 = MessagesFilter;
-
-updateNewMessage#1f2b0afd message:Message pts:int pts_count:int = Update;
-updateMessageID#4e90bfd6 id:int random_id:long = Update;
-updateDeleteMessages#a20db0e5 messages:Vector<int> pts:int pts_count:int = Update;
-updateUserTyping#c01e857f user_id:long action:SendMessageAction = Update;
-updateChatUserTyping#83487af0 chat_id:long from_id:Peer action:SendMessageAction = Update;
-updateChatParticipants#7761198 participants:ChatParticipants = Update;
-updateUserStatus#e5bdf8de user_id:long status:UserStatus = Update;
-updateUserName#a7848924 user_id:long first_name:string last_name:string usernames:Vector<Username> = Update;
-updateNewAuthorization#8951abef flags:# unconfirmed:flags.0?true hash:long date:flags.0?int device:flags.0?string location:flags.0?string = Update;
-updateNewEncryptedMessage#12bcbd9a message:EncryptedMessage qts:int = Update;
-updateEncryptedChatTyping#1710f156 chat_id:int = Update;
-updateEncryption#b4a2e88d chat:EncryptedChat date:int = Update;
-updateEncryptedMessagesRead#38fe25b7 chat_id:int max_date:int date:int = Update;
-updateChatParticipantAdd#3dda5451 chat_id:long user_id:long inviter_id:long date:int version:int = Update;
-updateChatParticipantDelete#e32f3d77 chat_id:long user_id:long version:int = Update;
-updateDcOptions#8e5e9873 dc_options:Vector<DcOption> = Update;
-updateNotifySettings#bec268ef peer:NotifyPeer notify_settings:PeerNotifySettings = Update;
-updateServiceNotification#ebe46819 flags:# popup:flags.0?true invert_media:flags.2?true inbox_date:flags.1?int type:string message:string media:MessageMedia entities:Vector<MessageEntity> = Update;
-updatePrivacy#ee3b272a key:PrivacyKey rules:Vector<PrivacyRule> = Update;
-updateUserPhone#5492a13 user_id:long phone:string = Update;
-updateReadHistoryInbox#9c974fdf flags:# folder_id:flags.0?int peer:Peer max_id:int still_unread_count:int pts:int pts_count:int = Update;
-updateReadHistoryOutbox#2f2f21bf peer:Peer max_id:int pts:int pts_count:int = Update;
-updateWebPage#7f891213 webpage:WebPage pts:int pts_count:int = Update;
-updateReadMessagesContents#f8227181 flags:# messages:Vector<int> pts:int pts_count:int date:flags.0?int = Update;
-updateChannelTooLong#108d941f flags:# channel_id:long pts:flags.0?int = Update;
-updateChannel#635b4c09 channel_id:long = Update;
-updateNewChannelMessage#62ba04d9 message:Message pts:int pts_count:int = Update;
-updateReadChannelInbox#922e6e10 flags:# folder_id:flags.0?int channel_id:long max_id:int still_unread_count:int pts:int = Update;
-updateDeleteChannelMessages#c32d5b12 channel_id:long messages:Vector<int> pts:int pts_count:int = Update;
-updateChannelMessageViews#f226ac08 channel_id:long id:int views:int = Update;
-updateChatParticipantAdmin#d7ca61a2 chat_id:long user_id:long is_admin:Bool version:int = Update;
-updateNewStickerSet#688a30aa stickerset:messages.StickerSet = Update;
-updateStickerSetsOrder#bb2d201 flags:# masks:flags.0?true emojis:flags.1?true order:Vector<long> = Update;
-updateStickerSets#31c24808 flags:# masks:flags.0?true emojis:flags.1?true = Update;
-updateSavedGifs#9375341e = Update;
-updateBotInlineQuery#496f379c flags:# query_id:long user_id:long query:string geo:flags.0?GeoPoint peer_type:flags.1?InlineQueryPeerType offset:string = Update;
-updateBotInlineSend#12f12a07 flags:# user_id:long query:string geo:flags.0?GeoPoint id:string msg_id:flags.1?InputBotInlineMessageID = Update;
-updateEditChannelMessage#1b3f4df7 message:Message pts:int pts_count:int = Update;
-updateBotCallbackQuery#b9cfc48d flags:# query_id:long user_id:long peer:Peer msg_id:int chat_instance:long data:flags.0?bytes game_short_name:flags.1?string = Update;
-updateEditMessage#e40370a3 message:Message pts:int pts_count:int = Update;
-updateInlineBotCallbackQuery#691e9052 flags:# query_id:long user_id:long msg_id:InputBotInlineMessageID chat_instance:long data:flags.0?bytes game_short_name:flags.1?string = Update;
-updateReadChannelOutbox#b75f99a9 channel_id:long max_id:int = Update;
-updateDraftMessage#1b49ec6d flags:# peer:Peer top_msg_id:flags.0?int draft:DraftMessage = Update;
-updateReadFeaturedStickers#571d2742 = Update;
-updateRecentStickers#9a422c20 = Update;
-updateConfig#a229dd06 = Update;
-updatePtsChanged#3354678f = Update;
-updateChannelWebPage#2f2ba99f channel_id:long webpage:WebPage pts:int pts_count:int = Update;
-updateDialogPinned#6e6fe51c flags:# pinned:flags.0?true folder_id:flags.1?int peer:DialogPeer = Update;
-updatePinnedDialogs#fa0f3ca2 flags:# folder_id:flags.1?int order:flags.0?Vector<DialogPeer> = Update;
-updateBotWebhookJSON#8317c0c3 data:DataJSON = Update;
-updateBotWebhookJSONQuery#9b9240a6 query_id:long data:DataJSON timeout:int = Update;
-updateBotShippingQuery#b5aefd7d query_id:long user_id:long payload:bytes shipping_address:PostAddress = Update;
-updateBotPrecheckoutQuery#8caa9a96 flags:# query_id:long user_id:long payload:bytes info:flags.0?PaymentRequestedInfo shipping_option_id:flags.1?string currency:string total_amount:long = Update;
-updatePhoneCall#ab0f6b1e phone_call:PhoneCall = Update;
-updateLangPackTooLong#46560264 lang_code:string = Update;
-updateLangPack#56022f4d difference:LangPackDifference = Update;
-updateFavedStickers#e511996d = Update;
-updateChannelReadMessagesContents#ea29055d flags:# channel_id:long top_msg_id:flags.0?int messages:Vector<int> = Update;
-updateContactsReset#7084a7be = Update;
-updateChannelAvailableMessages#b23fc698 channel_id:long available_min_id:int = Update;
-updateDialogUnreadMark#e16459c3 flags:# unread:flags.0?true peer:DialogPeer = Update;
-updateMessagePoll#aca1657b flags:# poll_id:long poll:flags.0?Poll results:PollResults = Update;
-updateChatDefaultBannedRights#54c01850 peer:Peer default_banned_rights:ChatBannedRights version:int = Update;
-updateFolderPeers#19360dc0 folder_peers:Vector<FolderPeer> pts:int pts_count:int = Update;
-updatePeerSettings#6a7e7366 peer:Peer settings:PeerSettings = Update;
-updatePeerLocated#b4afcfb0 peers:Vector<PeerLocated> = Update;
-updateNewScheduledMessage#39a51dfb message:Message = Update;
-updateDeleteScheduledMessages#f2a71983 flags:# peer:Peer messages:Vector<int> sent_messages:flags.0?Vector<int> = Update;
-updateTheme#8216fba3 theme:Theme = Update;
-updateGeoLiveViewed#871fb939 peer:Peer msg_id:int = Update;
-updateLoginToken#564fe691 = Update;
-updateMessagePollVote#24f40e77 poll_id:long peer:Peer options:Vector<bytes> qts:int = Update;
-updateDialogFilter#26ffde7d flags:# id:int filter:flags.0?DialogFilter = Update;
-updateDialogFilterOrder#a5d72105 order:Vector<int> = Update;
-updateDialogFilters#3504914f = Update;
-updatePhoneCallSignalingData#2661bf09 phone_call_id:long data:bytes = Update;
-updateChannelMessageForwards#d29a27f4 channel_id:long id:int forwards:int = Update;
-updateReadChannelDiscussionInbox#d6b19546 flags:# channel_id:long top_msg_id:int read_max_id:int broadcast_id:flags.0?long broadcast_post:flags.0?int = Update;
-updateReadChannelDiscussionOutbox#695c9e7c channel_id:long top_msg_id:int read_max_id:int = Update;
-updatePeerBlocked#ebe07752 flags:# blocked:flags.0?true blocked_my_stories_from:flags.1?true peer_id:Peer = Update;
-updateChannelUserTyping#8c88c923 flags:# channel_id:long top_msg_id:flags.0?int from_id:Peer action:SendMessageAction = Update;
-updatePinnedMessages#ed85eab5 flags:# pinned:flags.0?true peer:Peer messages:Vector<int> pts:int pts_count:int = Update;
-updatePinnedChannelMessages#5bb98608 flags:# pinned:flags.0?true channel_id:long messages:Vector<int> pts:int pts_count:int = Update;
-updateChat#f89a6a4e chat_id:long = Update;
-updateGroupCallParticipants#f2ebdb4e call:InputGroupCall participants:Vector<GroupCallParticipant> version:int = Update;
-updateGroupCall#97d64341 flags:# chat_id:flags.0?long call:GroupCall = Update;
-updatePeerHistoryTTL#bb9bb9a5 flags:# peer:Peer ttl_period:flags.0?int = Update;
-updateChatParticipant#d087663a flags:# chat_id:long date:int actor_id:long user_id:long prev_participant:flags.0?ChatParticipant new_participant:flags.1?ChatParticipant invite:flags.2?ExportedChatInvite qts:int = Update;
-updateChannelParticipant#985d3abb flags:# via_chatlist:flags.3?true channel_id:long date:int actor_id:long user_id:long prev_participant:flags.0?ChannelParticipant new_participant:flags.1?ChannelParticipant invite:flags.2?ExportedChatInvite qts:int = Update;
-updateBotStopped#c4870a49 user_id:long date:int stopped:Bool qts:int = Update;
-updateGroupCallConnection#b783982 flags:# presentation:flags.0?true params:DataJSON = Update;
-updateBotCommands#4d712f2e peer:Peer bot_id:long commands:Vector<BotCommand> = Update;
-updatePendingJoinRequests#7063c3db peer:Peer requests_pending:int recent_requesters:Vector<long> = Update;
-updateBotChatInviteRequester#11dfa986 peer:Peer date:int user_id:long about:string invite:ExportedChatInvite qts:int = Update;
-updateMessageReactions#5e1b3cb8 flags:# peer:Peer msg_id:int top_msg_id:flags.0?int reactions:MessageReactions = Update;
-updateAttachMenuBots#17b7a20b = Update;
-updateWebViewResultSent#1592b79d query_id:long = Update;
-updateBotMenuButton#14b85813 bot_id:long button:BotMenuButton = Update;
-updateSavedRingtones#74d8be99 = Update;
-updateTranscribedAudio#84cd5a flags:# pending:flags.0?true peer:Peer msg_id:int transcription_id:long text:string = Update;
-updateReadFeaturedEmojiStickers#fb4c496c = Update;
-updateUserEmojiStatus#28373599 user_id:long emoji_status:EmojiStatus = Update;
-updateRecentEmojiStatuses#30f443db = Update;
-updateRecentReactions#6f7863f4 = Update;
-updateMoveStickerSetToTop#86fccf85 flags:# masks:flags.0?true emojis:flags.1?true stickerset:long = Update;
-updateMessageExtendedMedia#d5a41724 peer:Peer msg_id:int extended_media:Vector<MessageExtendedMedia> = Update;
-updateChannelPinnedTopic#192efbe3 flags:# pinned:flags.0?true channel_id:long topic_id:int = Update;
-updateChannelPinnedTopics#fe198602 flags:# channel_id:long order:flags.0?Vector<int> = Update;
-updateUser#20529438 user_id:long = Update;
-updateAutoSaveSettings#ec05b097 = Update;
-updateStory#75b3b798 peer:Peer story:StoryItem = Update;
-updateReadStories#f74e932b peer:Peer max_id:int = Update;
-updateStoryID#1bf335b9 id:int random_id:long = Update;
-updateStoriesStealthMode#2c084dc1 stealth_mode:StoriesStealthMode = Update;
-updateSentStoryReaction#7d627683 peer:Peer story_id:int reaction:Reaction = Update;
-updateBotChatBoost#904dd49c peer:Peer boost:Boost qts:int = Update;
-updateChannelViewForumAsMessages#7b68920 channel_id:long enabled:Bool = Update;
-updatePeerWallpaper#ae3f101d flags:# wallpaper_overridden:flags.1?true peer:Peer wallpaper:flags.0?WallPaper = Update;
-updateBotMessageReaction#ac21d3ce peer:Peer msg_id:int date:int actor:Peer old_reactions:Vector<Reaction> new_reactions:Vector<Reaction> qts:int = Update;
-updateBotMessageReactions#9cb7759 peer:Peer msg_id:int date:int reactions:Vector<ReactionCount> qts:int = Update;
-updateSavedDialogPinned#aeaf9e74 flags:# pinned:flags.0?true peer:DialogPeer = Update;
-updatePinnedSavedDialogs#686c85a6 flags:# order:flags.0?Vector<DialogPeer> = Update;
-updateSavedReactionTags#39c67432 = Update;
-updateSmsJob#f16269d4 job_id:string = Update;
-updateQuickReplies#f9470ab2 quick_replies:Vector<QuickReply> = Update;
-updateNewQuickReply#f53da717 quick_reply:QuickReply = Update;
-updateDeleteQuickReply#53e6f1ec shortcut_id:int = Update;
-updateQuickReplyMessage#3e050d0f message:Message = Update;
-updateDeleteQuickReplyMessages#566fe7cd shortcut_id:int messages:Vector<int> = Update;
-updateBotBusinessConnect#8ae5c97a connection:BotBusinessConnection qts:int = Update;
-updateBotNewBusinessMessage#9ddb347c flags:# connection_id:string message:Message reply_to_message:flags.0?Message qts:int = Update;
-updateBotEditBusinessMessage#7df587c flags:# connection_id:string message:Message reply_to_message:flags.0?Message qts:int = Update;
-updateBotDeleteBusinessMessage#a02a982e connection_id:string peer:Peer messages:Vector<int> qts:int = Update;
-updateNewStoryReaction#1824e40b story_id:int peer:Peer reaction:Reaction = Update;
-updateBroadcastRevenueTransactions#dfd961f5 peer:Peer balances:BroadcastRevenueBalances = Update;
-updateStarsBalance#4e80a379 balance:StarsAmount = Update;
-updateBusinessBotCallbackQuery#1ea2fda7 flags:# query_id:long user_id:long connection_id:string message:Message reply_to_message:flags.2?Message chat_instance:long data:flags.0?bytes = Update;
-updateStarsRevenueStatus#a584b019 peer:Peer status:StarsRevenueStatus = Update;
-updateBotPurchasedPaidMedia#283bd312 user_id:long payload:string qts:int = Update;
-updatePaidReactionPrivacy#8b725fce private:PaidReactionPrivacy = Update;
-updateSentPhoneCode#504aa18f sent_code:auth.SentCode = Update;
-
-updates.state#a56c2a3e pts:int qts:int date:int seq:int unread_count:int = updates.State;
-
-updates.differenceEmpty#5d75a138 date:int seq:int = updates.Difference;
-updates.difference#f49ca0 new_messages:Vector<Message> new_encrypted_messages:Vector<EncryptedMessage> other_updates:Vector<Update> chats:Vector<Chat> users:Vector<User> state:updates.State = updates.Difference;
-updates.differenceSlice#a8fb1981 new_messages:Vector<Message> new_encrypted_messages:Vector<EncryptedMessage> other_updates:Vector<Update> chats:Vector<Chat> users:Vector<User> intermediate_state:updates.State = updates.Difference;
-updates.differenceTooLong#4afe8f6d pts:int = updates.Difference;
-
-updatesTooLong#e317af7e = Updates;
-updateShortMessage#313bc7f8 flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true silent:flags.13?true id:int user_id:long message:string pts:int pts_count:int date:int fwd_from:flags.2?MessageFwdHeader via_bot_id:flags.11?long reply_to:flags.3?MessageReplyHeader entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
-updateShortChatMessage#4d6deea5 flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true silent:flags.13?true id:int from_id:long chat_id:long message:string pts:int pts_count:int date:int fwd_from:flags.2?MessageFwdHeader via_bot_id:flags.11?long reply_to:flags.3?MessageReplyHeader entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
-updateShort#78d4dec1 update:Update date:int = Updates;
-updatesCombined#725b04c3 updates:Vector<Update> users:Vector<User> chats:Vector<Chat> date:int seq_start:int seq:int = Updates;
-updates#74ae4240 updates:Vector<Update> users:Vector<User> chats:Vector<Chat> date:int seq:int = Updates;
-updateShortSentMessage#9015e101 flags:# out:flags.1?true id:int pts:int pts_count:int date:int media:flags.9?MessageMedia entities:flags.7?Vector<MessageEntity> ttl_period:flags.25?int = Updates;
-
-photos.photos#8dca6aa5 photos:Vector<Photo> users:Vector<User> = photos.Photos;
-photos.photosSlice#15051f54 count:int photos:Vector<Photo> users:Vector<User> = photos.Photos;
-
-photos.photo#20212ca8 photo:Photo users:Vector<User> = photos.Photo;
-
-upload.file#96a18d5 type:storage.FileType mtime:int bytes:bytes = upload.File;
-upload.fileCdnRedirect#f18cda44 dc_id:int file_token:bytes encryption_key:bytes encryption_iv:bytes file_hashes:Vector<FileHash> = upload.File;
-
-dcOption#18b7a10d flags:# ipv6:flags.0?true media_only:flags.1?true tcpo_only:flags.2?true cdn:flags.3?true static:flags.4?true this_port_only:flags.5?true id:int ip_address:string port:int secret:flags.10?bytes = DcOption;
-
-config#cc1a241e flags:# default_p2p_contacts:flags.3?true preload_featured_stickers:flags.4?true revoke_pm_inbox:flags.6?true blocked_mode:flags.8?true force_try_ipv6:flags.14?true date:int expires:int test_mode:Bool this_dc:int dc_options:Vector<DcOption> dc_txt_domain_name:string chat_size_max:int megagroup_size_max:int forwarded_count_max:int online_update_period_ms:int offline_blur_timeout_ms:int offline_idle_timeout_ms:int online_cloud_timeout_ms:int notify_cloud_delay_ms:int notify_default_delay_ms:int push_chat_period_ms:int push_chat_limit:int edit_time_limit:int revoke_time_limit:int revoke_pm_time_limit:int rating_e_decay:int stickers_recent_limit:int channels_read_media_period:int tmp_sessions:flags.0?int call_receive_timeout_ms:int call_ring_timeout_ms:int call_connect_timeout_ms:int call_packet_timeout_ms:int me_url_prefix:string autoupdate_url_prefix:flags.7?string gif_search_username:flags.9?string venue_search_username:flags.10?string img_search_username:flags.11?string static_maps_provider:flags.12?string caption_length_max:int message_length_max:int webfile_dc_id:int suggested_lang_code:flags.2?string lang_pack_version:flags.2?int base_lang_pack_version:flags.2?int reactions_default:flags.15?Reaction autologin_token:flags.16?string = Config;
-
-nearestDc#8e1a1775 country:string this_dc:int nearest_dc:int = NearestDc;
-
-help.appUpdate#ccbbce30 flags:# can_not_skip:flags.0?true id:int version:string text:string entities:Vector<MessageEntity> document:flags.1?Document url:flags.2?string sticker:flags.3?Document = help.AppUpdate;
-help.noAppUpdate#c45a6536 = help.AppUpdate;
-
-help.inviteText#18cb9f78 message:string = help.InviteText;
-
-encryptedChatEmpty#ab7ec0a0 id:int = EncryptedChat;
-encryptedChatWaiting#66b25953 id:int access_hash:long date:int admin_id:long participant_id:long = EncryptedChat;
-encryptedChatRequested#48f1d94c flags:# folder_id:flags.0?int id:int access_hash:long date:int admin_id:long participant_id:long g_a:bytes = EncryptedChat;
-encryptedChat#61f0d4c7 id:int access_hash:long date:int admin_id:long participant_id:long g_a_or_b:bytes key_fingerprint:long = EncryptedChat;
-encryptedChatDiscarded#1e1c7c45 flags:# history_deleted:flags.0?true id:int = EncryptedChat;
-
-inputEncryptedChat#f141b5e1 chat_id:int access_hash:long = InputEncryptedChat;
-
-encryptedFileEmpty#c21f497e = EncryptedFile;
-encryptedFile#a8008cd8 id:long access_hash:long size:long dc_id:int key_fingerprint:int = EncryptedFile;
-
-inputEncryptedFileEmpty#1837c364 = InputEncryptedFile;
-inputEncryptedFileUploaded#64bd0306 id:long parts:int md5_checksum:string key_fingerprint:int = InputEncryptedFile;
-inputEncryptedFile#5a17b5e5 id:long access_hash:long = InputEncryptedFile;
-inputEncryptedFileBigUploaded#2dc173c8 id:long parts:int key_fingerprint:int = InputEncryptedFile;
-
-encryptedMessage#ed18c118 random_id:long chat_id:int date:int bytes:bytes file:EncryptedFile = EncryptedMessage;
-encryptedMessageService#23734b06 random_id:long chat_id:int date:int bytes:bytes = EncryptedMessage;
-
-messages.dhConfigNotModified#c0e24635 random:bytes = messages.DhConfig;
-messages.dhConfig#2c221edd g:int p:bytes version:int random:bytes = messages.DhConfig;
-
-messages.sentEncryptedMessage#560f8935 date:int = messages.SentEncryptedMessage;
-messages.sentEncryptedFile#9493ff32 date:int file:EncryptedFile = messages.SentEncryptedMessage;
-
-inputDocumentEmpty#72f0eaae = InputDocument;
-inputDocument#1abfb575 id:long access_hash:long file_reference:bytes = InputDocument;
-
-documentEmpty#36f8c871 id:long = Document;
-document#8fd4c4d8 flags:# id:long access_hash:long file_reference:bytes date:int mime_type:string size:long thumbs:flags.0?Vector<PhotoSize> video_thumbs:flags.1?Vector<VideoSize> dc_id:int attributes:Vector<DocumentAttribute> = Document;
-
-help.support#17c6b5f6 phone_number:string user:User = help.Support;
-
-notifyPeer#9fd40bd8 peer:Peer = NotifyPeer;
-notifyUsers#b4c83b4c = NotifyPeer;
-notifyChats#c007cec3 = NotifyPeer;
-notifyBroadcasts#d612e8ef = NotifyPeer;
-notifyForumTopic#226e6308 peer:Peer top_msg_id:int = NotifyPeer;
-
-sendMessageTypingAction#16bf744e = SendMessageAction;
-sendMessageCancelAction#fd5ec8f5 = SendMessageAction;
-sendMessageRecordVideoAction#a187d66f = SendMessageAction;
-sendMessageUploadVideoAction#e9763aec progress:int = SendMessageAction;
-sendMessageRecordAudioAction#d52f73f7 = SendMessageAction;
-sendMessageUploadAudioAction#f351d7ab progress:int = SendMessageAction;
-sendMessageUploadPhotoAction#d1d34a26 progress:int = SendMessageAction;
-sendMessageUploadDocumentAction#aa0cd9e4 progress:int = SendMessageAction;
-sendMessageGeoLocationAction#176f8ba1 = SendMessageAction;
-sendMessageChooseContactAction#628cbc6f = SendMessageAction;
-sendMessageGamePlayAction#dd6a8f48 = SendMessageAction;
-sendMessageRecordRoundAction#88f27fbc = SendMessageAction;
-sendMessageUploadRoundAction#243e1c66 progress:int = SendMessageAction;
-speakingInGroupCallAction#d92c2285 = SendMessageAction;
-sendMessageHistoryImportAction#dbda9246 progress:int = SendMessageAction;
-sendMessageChooseStickerAction#b05ac6b1 = SendMessageAction;
-sendMessageEmojiInteraction#25972bcb emoticon:string msg_id:int interaction:DataJSON = SendMessageAction;
-sendMessageEmojiInteractionSeen#b665902e emoticon:string = SendMessageAction;
-
-contacts.found#b3134d9d my_results:Vector<Peer> results:Vector<Peer> chats:Vector<Chat> users:Vector<User> = contacts.Found;
-
-inputPrivacyKeyStatusTimestamp#4f96cb18 = InputPrivacyKey;
-inputPrivacyKeyChatInvite#bdfb0426 = InputPrivacyKey;
-inputPrivacyKeyPhoneCall#fabadc5f = InputPrivacyKey;
-inputPrivacyKeyPhoneP2P#db9e70d2 = InputPrivacyKey;
-inputPrivacyKeyForwards#a4dd4c08 = InputPrivacyKey;
-inputPrivacyKeyProfilePhoto#5719bacc = InputPrivacyKey;
-inputPrivacyKeyPhoneNumber#352dafa = InputPrivacyKey;
-inputPrivacyKeyAddedByPhone#d1219bdd = InputPrivacyKey;
-inputPrivacyKeyVoiceMessages#aee69d68 = InputPrivacyKey;
-inputPrivacyKeyAbout#3823cc40 = InputPrivacyKey;
-inputPrivacyKeyBirthday#d65a11cc = InputPrivacyKey;
-inputPrivacyKeyStarGiftsAutoSave#e1732341 = InputPrivacyKey;
-inputPrivacyKeyNoPaidMessages#bdc597b4 = InputPrivacyKey;
-
-privacyKeyStatusTimestamp#bc2eab30 = PrivacyKey;
-privacyKeyChatInvite#500e6dfa = PrivacyKey;
-privacyKeyPhoneCall#3d662b7b = PrivacyKey;
-privacyKeyPhoneP2P#39491cc8 = PrivacyKey;
-privacyKeyForwards#69ec56a3 = PrivacyKey;
-privacyKeyProfilePhoto#96151fed = PrivacyKey;
-privacyKeyPhoneNumber#d19ae46d = PrivacyKey;
-privacyKeyAddedByPhone#42ffd42b = PrivacyKey;
-privacyKeyVoiceMessages#697f414 = PrivacyKey;
-privacyKeyAbout#a486b761 = PrivacyKey;
-privacyKeyBirthday#2000a518 = PrivacyKey;
-privacyKeyStarGiftsAutoSave#2ca4fdf8 = PrivacyKey;
-privacyKeyNoPaidMessages#17d348d2 = PrivacyKey;
-
-inputPrivacyValueAllowContacts#d09e07b = InputPrivacyRule;
-inputPrivacyValueAllowAll#184b35ce = InputPrivacyRule;
-inputPrivacyValueAllowUsers#131cc67f users:Vector<InputUser> = InputPrivacyRule;
-inputPrivacyValueDisallowContacts#ba52007 = InputPrivacyRule;
-inputPrivacyValueDisallowAll#d66b66c9 = InputPrivacyRule;
-inputPrivacyValueDisallowUsers#90110467 users:Vector<InputUser> = InputPrivacyRule;
-inputPrivacyValueAllowChatParticipants#840649cf chats:Vector<long> = InputPrivacyRule;
-inputPrivacyValueDisallowChatParticipants#e94f0f86 chats:Vector<long> = InputPrivacyRule;
-inputPrivacyValueAllowCloseFriends#2f453e49 = InputPrivacyRule;
-inputPrivacyValueAllowPremium#77cdc9f1 = InputPrivacyRule;
-inputPrivacyValueAllowBots#5a4fcce5 = InputPrivacyRule;
-inputPrivacyValueDisallowBots#c4e57915 = InputPrivacyRule;
-
-privacyValueAllowContacts#fffe1bac = PrivacyRule;
-privacyValueAllowAll#65427b82 = PrivacyRule;
-privacyValueAllowUsers#b8905fb2 users:Vector<long> = PrivacyRule;
-privacyValueDisallowContacts#f888fa1a = PrivacyRule;
-privacyValueDisallowAll#8b73e763 = PrivacyRule;
-privacyValueDisallowUsers#e4621141 users:Vector<long> = PrivacyRule;
-privacyValueAllowChatParticipants#6b134e8e chats:Vector<long> = PrivacyRule;
-privacyValueDisallowChatParticipants#41c87565 chats:Vector<long> = PrivacyRule;
-privacyValueAllowCloseFriends#f7e8d89b = PrivacyRule;
-privacyValueAllowPremium#ece9814b = PrivacyRule;
-privacyValueAllowBots#21461b5d = PrivacyRule;
-privacyValueDisallowBots#f6a5f82f = PrivacyRule;
-
-account.privacyRules#50a04e45 rules:Vector<PrivacyRule> chats:Vector<Chat> users:Vector<User> = account.PrivacyRules;
-
-accountDaysTTL#b8d0afdf days:int = AccountDaysTTL;
-
-documentAttributeImageSize#6c37c15c w:int h:int = DocumentAttribute;
-documentAttributeAnimated#11b58939 = DocumentAttribute;
-documentAttributeSticker#6319d612 flags:# mask:flags.1?true alt:string stickerset:InputStickerSet mask_coords:flags.0?MaskCoords = DocumentAttribute;
-documentAttributeVideo#43c57c48 flags:# round_message:flags.0?true supports_streaming:flags.1?true nosound:flags.3?true duration:double w:int h:int preload_prefix_size:flags.2?int video_start_ts:flags.4?double video_codec:flags.5?string = DocumentAttribute;
-documentAttributeAudio#9852f9c6 flags:# voice:flags.10?true duration:int title:flags.0?string performer:flags.1?string waveform:flags.2?bytes = DocumentAttribute;
-documentAttributeFilename#15590068 file_name:string = DocumentAttribute;
-documentAttributeHasStickers#9801d2f7 = DocumentAttribute;
-documentAttributeCustomEmoji#fd149899 flags:# free:flags.0?true text_color:flags.1?true alt:string stickerset:InputStickerSet = DocumentAttribute;
-
-messages.stickersNotModified#f1749a22 = messages.Stickers;
-messages.stickers#30a6ec7e hash:long stickers:Vector<Document> = messages.Stickers;
-
-stickerPack#12b299d4 emoticon:string documents:Vector<long> = StickerPack;
-
-messages.allStickersNotModified#e86602c3 = messages.AllStickers;
-messages.allStickers#cdbbcebb hash:long sets:Vector<StickerSet> = messages.AllStickers;
-
-messages.affectedMessages#84d19185 pts:int pts_count:int = messages.AffectedMessages;
-
-webPageEmpty#211a1788 flags:# id:long url:flags.0?string = WebPage;
-webPagePending#b0d13e47 flags:# id:long url:flags.0?string date:int = WebPage;
-webPage#e89c45b2 flags:# has_large_media:flags.13?true video_cover_photo:flags.14?true id:long url:string display_url:string hash:int type:flags.0?string site_name:flags.1?string title:flags.2?string description:flags.3?string photo:flags.4?Photo embed_url:flags.5?string embed_type:flags.5?string embed_width:flags.6?int embed_height:flags.6?int duration:flags.7?int author:flags.8?string document:flags.9?Document cached_page:flags.10?Page attributes:flags.12?Vector<WebPageAttribute> = WebPage;
-webPageNotModified#7311ca11 flags:# cached_page_views:flags.0?int = WebPage;
-
-authorization#ad01d61d flags:# current:flags.0?true official_app:flags.1?true password_pending:flags.2?true encrypted_requests_disabled:flags.3?true call_requests_disabled:flags.4?true unconfirmed:flags.5?true hash:long device_model:string platform:string system_version:string api_id:int app_name:string app_version:string date_created:int date_active:int ip:string country:string region:string = Authorization;
-
-account.authorizations#4bff8ea0 authorization_ttl_days:int authorizations:Vector<Authorization> = account.Authorizations;
-
-account.password#957b50fb flags:# has_recovery:flags.0?true has_secure_values:flags.1?true has_password:flags.2?true current_algo:flags.2?PasswordKdfAlgo srp_B:flags.2?bytes srp_id:flags.2?long hint:flags.3?string email_unconfirmed_pattern:flags.4?string new_algo:PasswordKdfAlgo new_secure_algo:SecurePasswordKdfAlgo secure_random:bytes pending_reset_date:flags.5?int login_email_pattern:flags.6?string = account.Password;
-
-account.passwordSettings#9a5c33e5 flags:# email:flags.0?string secure_settings:flags.1?SecureSecretSettings = account.PasswordSettings;
-
-account.passwordInputSettings#c23727c9 flags:# new_algo:flags.0?PasswordKdfAlgo new_password_hash:flags.0?bytes hint:flags.0?string email:flags.1?string new_secure_settings:flags.2?SecureSecretSettings = account.PasswordInputSettings;
-
-auth.passwordRecovery#137948a5 email_pattern:string = auth.PasswordRecovery;
-
-receivedNotifyMessage#a384b779 id:int flags:int = ReceivedNotifyMessage;
-
-chatInviteExported#a22cbd96 flags:# revoked:flags.0?true permanent:flags.5?true request_needed:flags.6?true link:string admin_id:long date:int start_date:flags.4?int expire_date:flags.1?int usage_limit:flags.2?int usage:flags.3?int requested:flags.7?int subscription_expired:flags.10?int title:flags.8?string subscription_pricing:flags.9?StarsSubscriptionPricing = ExportedChatInvite;
-chatInvitePublicJoinRequests#ed107ab7 = ExportedChatInvite;
-
-chatInviteAlready#5a686d7c chat:Chat = ChatInvite;
-chatInvite#5c9d3702 flags:# channel:flags.0?true broadcast:flags.1?true public:flags.2?true megagroup:flags.3?true request_needed:flags.6?true verified:flags.7?true scam:flags.8?true fake:flags.9?true can_refulfill_subscription:flags.11?true title:string about:flags.5?string photo:Photo participants_count:int participants:flags.4?Vector<User> color:int subscription_pricing:flags.10?StarsSubscriptionPricing subscription_form_id:flags.12?long bot_verification:flags.13?BotVerification = ChatInvite;
-chatInvitePeek#61695cb0 chat:Chat expires:int = ChatInvite;
-
-inputStickerSetEmpty#ffb62b95 = InputStickerSet;
-inputStickerSetID#9de7a269 id:long access_hash:long = InputStickerSet;
-inputStickerSetShortName#861cc8a0 short_name:string = InputStickerSet;
-inputStickerSetAnimatedEmoji#28703c8 = InputStickerSet;
-inputStickerSetDice#e67f520e emoticon:string = InputStickerSet;
-inputStickerSetAnimatedEmojiAnimations#cde3739 = InputStickerSet;
-inputStickerSetPremiumGifts#c88b3b02 = InputStickerSet;
-inputStickerSetEmojiGenericAnimations#4c4d4ce = InputStickerSet;
-inputStickerSetEmojiDefaultStatuses#29d0f5ee = InputStickerSet;
-inputStickerSetEmojiDefaultTopicIcons#44c1f8e9 = InputStickerSet;
-inputStickerSetEmojiChannelDefaultStatuses#49748553 = InputStickerSet;
-
-stickerSet#2dd14edc flags:# archived:flags.1?true official:flags.2?true masks:flags.3?true emojis:flags.7?true text_color:flags.9?true channel_emoji_status:flags.10?true creator:flags.11?true installed_date:flags.0?int id:long access_hash:long title:string short_name:string thumbs:flags.4?Vector<PhotoSize> thumb_dc_id:flags.4?int thumb_version:flags.4?int thumb_document_id:flags.8?long count:int hash:int = StickerSet;
-
-messages.stickerSet#6e153f16 set:StickerSet packs:Vector<StickerPack> keywords:Vector<StickerKeyword> documents:Vector<Document> = messages.StickerSet;
-messages.stickerSetNotModified#d3f924eb = messages.StickerSet;
-
-botCommand#c27ac8c7 command:string description:string = BotCommand;
-
-botInfo#4d8a0299 flags:# has_preview_medias:flags.6?true user_id:flags.0?long description:flags.1?string description_photo:flags.4?Photo description_document:flags.5?Document commands:flags.2?Vector<BotCommand> menu_button:flags.3?BotMenuButton privacy_policy_url:flags.7?string app_settings:flags.8?BotAppSettings verifier_settings:flags.9?BotVerifierSettings = BotInfo;
-
-keyboardButton#a2fa4880 text:string = KeyboardButton;
-keyboardButtonUrl#258aff05 text:string url:string = KeyboardButton;
-keyboardButtonCallback#35bbdb6b flags:# requires_password:flags.0?true text:string data:bytes = KeyboardButton;
-keyboardButtonRequestPhone#b16a6c29 text:string = KeyboardButton;
-keyboardButtonRequestGeoLocation#fc796b3f text:string = KeyboardButton;
-keyboardButtonSwitchInline#93b9fbb5 flags:# same_peer:flags.0?true text:string query:string peer_types:flags.1?Vector<InlineQueryPeerType> = KeyboardButton;
-keyboardButtonGame#50f41ccf text:string = KeyboardButton;
-keyboardButtonBuy#afd93fbb text:string = KeyboardButton;
-keyboardButtonUrlAuth#10b78d29 flags:# text:string fwd_text:flags.0?string url:string button_id:int = KeyboardButton;
-inputKeyboardButtonUrlAuth#d02e7fd4 flags:# request_write_access:flags.0?true text:string fwd_text:flags.1?string url:string bot:InputUser = KeyboardButton;
-keyboardButtonRequestPoll#bbc7515d flags:# quiz:flags.0?Bool text:string = KeyboardButton;
-inputKeyboardButtonUserProfile#e988037b text:string user_id:InputUser = KeyboardButton;
-keyboardButtonUserProfile#308660c1 text:string user_id:long = KeyboardButton;
-keyboardButtonWebView#13767230 text:string url:string = KeyboardButton;
-keyboardButtonSimpleWebView#a0c0505c text:string url:string = KeyboardButton;
-keyboardButtonRequestPeer#53d7bfd8 text:string button_id:int peer_type:RequestPeerType max_quantity:int = KeyboardButton;
-inputKeyboardButtonRequestPeer#c9662d05 flags:# name_requested:flags.0?true username_requested:flags.1?true photo_requested:flags.2?true text:string button_id:int peer_type:RequestPeerType max_quantity:int = KeyboardButton;
-keyboardButtonCopy#75d2698e text:string copy_text:string = KeyboardButton;
-
-keyboardButtonRow#77608b83 buttons:Vector<KeyboardButton> = KeyboardButtonRow;
-
-replyKeyboardHide#a03e5b85 flags:# selective:flags.2?true = ReplyMarkup;
-replyKeyboardForceReply#86b40b08 flags:# single_use:flags.1?true selective:flags.2?true placeholder:flags.3?string = ReplyMarkup;
-replyKeyboardMarkup#85dd99d1 flags:# resize:flags.0?true single_use:flags.1?true selective:flags.2?true persistent:flags.4?true rows:Vector<KeyboardButtonRow> placeholder:flags.3?string = ReplyMarkup;
-replyInlineMarkup#48a30254 rows:Vector<KeyboardButtonRow> = ReplyMarkup;
-
-messageEntityUnknown#bb92ba95 offset:int length:int = MessageEntity;
-messageEntityMention#fa04579d offset:int length:int = MessageEntity;
-messageEntityHashtag#6f635b0d offset:int length:int = MessageEntity;
-messageEntityBotCommand#6cef8ac7 offset:int length:int = MessageEntity;
-messageEntityUrl#6ed02538 offset:int length:int = MessageEntity;
-messageEntityEmail#64e475c2 offset:int length:int = MessageEntity;
-messageEntityBold#bd610bc9 offset:int length:int = MessageEntity;
-messageEntityItalic#826f8b60 offset:int length:int = MessageEntity;
-messageEntityCode#28a20571 offset:int length:int = MessageEntity;
-messageEntityPre#73924be0 offset:int length:int language:string = MessageEntity;
-messageEntityTextUrl#76a6d327 offset:int length:int url:string = MessageEntity;
-messageEntityMentionName#dc7b1140 offset:int length:int user_id:long = MessageEntity;
-inputMessageEntityMentionName#208e68c9 offset:int length:int user_id:InputUser = MessageEntity;
-messageEntityPhone#9b69e34b offset:int length:int = MessageEntity;
-messageEntityCashtag#4c4e743f offset:int length:int = MessageEntity;
-messageEntityUnderline#9c4e7e8b offset:int length:int = MessageEntity;
-messageEntityStrike#bf0693d4 offset:int length:int = MessageEntity;
-messageEntityBankCard#761e6af4 offset:int length:int = MessageEntity;
-messageEntitySpoiler#32ca960f offset:int length:int = MessageEntity;
-messageEntityCustomEmoji#c8cf05f8 offset:int length:int document_id:long = MessageEntity;
-messageEntityBlockquote#f1ccaaac flags:# collapsed:flags.0?true offset:int length:int = MessageEntity;
-
-inputChannelEmpty#ee8c1e86 = InputChannel;
-inputChannel#f35aec28 channel_id:long access_hash:long = InputChannel;
-inputChannelFromMessage#5b934f9d peer:InputPeer msg_id:int channel_id:long = InputChannel;
-
-contacts.resolvedPeer#7f077ad9 peer:Peer chats:Vector<Chat> users:Vector<User> = contacts.ResolvedPeer;
-
-messageRange#ae30253 min_id:int max_id:int = MessageRange;
-
-updates.channelDifferenceEmpty#3e11affb flags:# final:flags.0?true pts:int timeout:flags.1?int = updates.ChannelDifference;
-updates.channelDifferenceTooLong#a4bcc6fe flags:# final:flags.0?true timeout:flags.1?int dialog:Dialog messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = updates.ChannelDifference;
-updates.channelDifference#2064674e flags:# final:flags.0?true pts:int timeout:flags.1?int new_messages:Vector<Message> other_updates:Vector<Update> chats:Vector<Chat> users:Vector<User> = updates.ChannelDifference;
-
-channelMessagesFilterEmpty#94d42ee7 = ChannelMessagesFilter;
-channelMessagesFilter#cd77d957 flags:# exclude_new_messages:flags.1?true ranges:Vector<MessageRange> = ChannelMessagesFilter;
-
-channelParticipant#cb397619 flags:# user_id:long date:int subscription_until_date:flags.0?int = ChannelParticipant;
-channelParticipantSelf#4f607bef flags:# via_request:flags.0?true user_id:long inviter_id:long date:int subscription_until_date:flags.1?int = ChannelParticipant;
-channelParticipantCreator#2fe601d3 flags:# user_id:long admin_rights:ChatAdminRights rank:flags.0?string = ChannelParticipant;
-channelParticipantAdmin#34c3bb53 flags:# can_edit:flags.0?true self:flags.1?true user_id:long inviter_id:flags.1?long promoted_by:long date:int admin_rights:ChatAdminRights rank:flags.2?string = ChannelParticipant;
-channelParticipantBanned#6df8014e flags:# left:flags.0?true peer:Peer kicked_by:long date:int banned_rights:ChatBannedRights = ChannelParticipant;
-channelParticipantLeft#1b03f006 peer:Peer = ChannelParticipant;
-
-channelParticipantsRecent#de3f3c79 = ChannelParticipantsFilter;
-channelParticipantsAdmins#b4608969 = ChannelParticipantsFilter;
-channelParticipantsKicked#a3b54985 q:string = ChannelParticipantsFilter;
-channelParticipantsBots#b0d1865b = ChannelParticipantsFilter;
-channelParticipantsBanned#1427a5e1 q:string = ChannelParticipantsFilter;
-channelParticipantsSearch#656ac4b q:string = ChannelParticipantsFilter;
-channelParticipantsContacts#bb6ae88d q:string = ChannelParticipantsFilter;
-channelParticipantsMentions#e04b5ceb flags:# q:flags.0?string top_msg_id:flags.1?int = ChannelParticipantsFilter;
-
-channels.channelParticipants#9ab0feaf count:int participants:Vector<ChannelParticipant> chats:Vector<Chat> users:Vector<User> = channels.ChannelParticipants;
-channels.channelParticipantsNotModified#f0173fe9 = channels.ChannelParticipants;
-
-channels.channelParticipant#dfb80317 participant:ChannelParticipant chats:Vector<Chat> users:Vector<User> = channels.ChannelParticipant;
-
-help.termsOfService#780a0310 flags:# popup:flags.0?true id:DataJSON text:string entities:Vector<MessageEntity> min_age_confirm:flags.1?int = help.TermsOfService;
-
-messages.savedGifsNotModified#e8025ca2 = messages.SavedGifs;
-messages.savedGifs#84a02a0d hash:long gifs:Vector<Document> = messages.SavedGifs;
-
-inputBotInlineMessageMediaAuto#3380c786 flags:# invert_media:flags.3?true message:string entities:flags.1?Vector<MessageEntity> reply_markup:flags.2?ReplyMarkup = InputBotInlineMessage;
-inputBotInlineMessageText#3dcd7a87 flags:# no_webpage:flags.0?true invert_media:flags.3?true message:string entities:flags.1?Vector<MessageEntity> reply_markup:flags.2?ReplyMarkup = InputBotInlineMessage;
-inputBotInlineMessageMediaGeo#96929a85 flags:# geo_point:InputGeoPoint heading:flags.0?int period:flags.1?int proximity_notification_radius:flags.3?int reply_markup:flags.2?ReplyMarkup = InputBotInlineMessage;
-inputBotInlineMessageMediaVenue#417bbf11 flags:# geo_point:InputGeoPoint title:string address:string provider:string venue_id:string venue_type:string reply_markup:flags.2?ReplyMarkup = InputBotInlineMessage;
-inputBotInlineMessageMediaContact#a6edbffd flags:# phone_number:string first_name:string last_name:string vcard:string reply_markup:flags.2?ReplyMarkup = InputBotInlineMessage;
-inputBotInlineMessageGame#4b425864 flags:# reply_markup:flags.2?ReplyMarkup = InputBotInlineMessage;
-inputBotInlineMessageMediaInvoice#d7e78225 flags:# title:string description:string photo:flags.0?InputWebDocument invoice:Invoice payload:bytes provider:string provider_data:DataJSON reply_markup:flags.2?ReplyMarkup = InputBotInlineMessage;
-inputBotInlineMessageMediaWebPage#bddcc510 flags:# invert_media:flags.3?true force_large_media:flags.4?true force_small_media:flags.5?true optional:flags.6?true message:string entities:flags.1?Vector<MessageEntity> url:string reply_markup:flags.2?ReplyMarkup = InputBotInlineMessage;
-
-inputBotInlineResult#88bf9319 flags:# id:string type:string title:flags.1?string description:flags.2?string url:flags.3?string thumb:flags.4?InputWebDocument content:flags.5?InputWebDocument send_message:InputBotInlineMessage = InputBotInlineResult;
-inputBotInlineResultPhoto#a8d864a7 id:string type:string photo:InputPhoto send_message:InputBotInlineMessage = InputBotInlineResult;
-inputBotInlineResultDocument#fff8fdc4 flags:# id:string type:string title:flags.1?string description:flags.2?string document:InputDocument send_message:InputBotInlineMessage = InputBotInlineResult;
-inputBotInlineResultGame#4fa417f2 id:string short_name:string send_message:InputBotInlineMessage = InputBotInlineResult;
-
-botInlineMessageMediaAuto#764cf810 flags:# invert_media:flags.3?true message:string entities:flags.1?Vector<MessageEntity> reply_markup:flags.2?ReplyMarkup = BotInlineMessage;
-botInlineMessageText#8c7f65e2 flags:# no_webpage:flags.0?true invert_media:flags.3?true message:string entities:flags.1?Vector<MessageEntity> reply_markup:flags.2?ReplyMarkup = BotInlineMessage;
-botInlineMessageMediaGeo#51846fd flags:# geo:GeoPoint heading:flags.0?int period:flags.1?int proximity_notification_radius:flags.3?int reply_markup:flags.2?ReplyMarkup = BotInlineMessage;
-botInlineMessageMediaVenue#8a86659c flags:# geo:GeoPoint title:string address:string provider:string venue_id:string venue_type:string reply_markup:flags.2?ReplyMarkup = BotInlineMessage;
-botInlineMessageMediaContact#18d1cdc2 flags:# phone_number:string first_name:string last_name:string vcard:string reply_markup:flags.2?ReplyMarkup = BotInlineMessage;
-botInlineMessageMediaInvoice#354a9b09 flags:# shipping_address_requested:flags.1?true test:flags.3?true title:string description:string photo:flags.0?WebDocument currency:string total_amount:long reply_markup:flags.2?ReplyMarkup = BotInlineMessage;
-botInlineMessageMediaWebPage#809ad9a6 flags:# invert_media:flags.3?true force_large_media:flags.4?true force_small_media:flags.5?true manual:flags.7?true safe:flags.8?true message:string entities:flags.1?Vector<MessageEntity> url:string reply_markup:flags.2?ReplyMarkup = BotInlineMessage;
-
-botInlineResult#11965f3a flags:# id:string type:string title:flags.1?string description:flags.2?string url:flags.3?string thumb:flags.4?WebDocument content:flags.5?WebDocument send_message:BotInlineMessage = BotInlineResult;
-botInlineMediaResult#17db940b flags:# id:string type:string photo:flags.0?Photo document:flags.1?Document title:flags.2?string description:flags.3?string send_message:BotInlineMessage = BotInlineResult;
-
-messages.botResults#e021f2f6 flags:# gallery:flags.0?true query_id:long next_offset:flags.1?string switch_pm:flags.2?InlineBotSwitchPM switch_webview:flags.3?InlineBotWebView results:Vector<BotInlineResult> cache_time:int users:Vector<User> = messages.BotResults;
-
-exportedMessageLink#5dab1af4 link:string html:string = ExportedMessageLink;
-
-messageFwdHeader#4e4df4bb flags:# imported:flags.7?true saved_out:flags.11?true from_id:flags.0?Peer from_name:flags.5?string date:int channel_post:flags.2?int post_author:flags.3?string saved_from_peer:flags.4?Peer saved_from_msg_id:flags.4?int saved_from_id:flags.8?Peer saved_from_name:flags.9?string saved_date:flags.10?int psa_type:flags.6?string = MessageFwdHeader;
-
-auth.codeTypeSms#72a3158c = auth.CodeType;
-auth.codeTypeCall#741cd3e3 = auth.CodeType;
-auth.codeTypeFlashCall#226ccefb = auth.CodeType;
-auth.codeTypeMissedCall#d61ad6ee = auth.CodeType;
-auth.codeTypeFragmentSms#6ed998c = auth.CodeType;
-
-auth.sentCodeTypeApp#3dbb5986 length:int = auth.SentCodeType;
-auth.sentCodeTypeSms#c000bba2 length:int = auth.SentCodeType;
-auth.sentCodeTypeCall#5353e5a7 length:int = auth.SentCodeType;
-auth.sentCodeTypeFlashCall#ab03c6d9 pattern:string = auth.SentCodeType;
-auth.sentCodeTypeMissedCall#82006484 prefix:string length:int = auth.SentCodeType;
-auth.sentCodeTypeEmailCode#f450f59b flags:# apple_signin_allowed:flags.0?true google_signin_allowed:flags.1?true email_pattern:string length:int reset_available_period:flags.3?int reset_pending_date:flags.4?int = auth.SentCodeType;
-auth.sentCodeTypeSetUpEmailRequired#a5491dea flags:# apple_signin_allowed:flags.0?true google_signin_allowed:flags.1?true = auth.SentCodeType;
-auth.sentCodeTypeFragmentSms#d9565c39 url:string length:int = auth.SentCodeType;
-auth.sentCodeTypeFirebaseSms#9fd736 flags:# nonce:flags.0?bytes play_integrity_project_id:flags.2?long play_integrity_nonce:flags.2?bytes receipt:flags.1?string push_timeout:flags.1?int length:int = auth.SentCodeType;
-auth.sentCodeTypeSmsWord#a416ac81 flags:# beginning:flags.0?string = auth.SentCodeType;
-auth.sentCodeTypeSmsPhrase#b37794af flags:# beginning:flags.0?string = auth.SentCodeType;
-
-messages.botCallbackAnswer#36585ea4 flags:# alert:flags.1?true has_url:flags.3?true native_ui:flags.4?true message:flags.0?string url:flags.2?string cache_time:int = messages.BotCallbackAnswer;
-
-messages.messageEditData#26b5dde6 flags:# caption:flags.0?true = messages.MessageEditData;
-
-inputBotInlineMessageID#890c3d89 dc_id:int id:long access_hash:long = InputBotInlineMessageID;
-inputBotInlineMessageID64#b6d915d7 dc_id:int owner_id:long id:int access_hash:long = InputBotInlineMessageID;
-
-inlineBotSwitchPM#3c20629f text:string start_param:string = InlineBotSwitchPM;
-
-messages.peerDialogs#3371c354 dialogs:Vector<Dialog> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> state:updates.State = messages.PeerDialogs;
-
-topPeer#edcdc05b peer:Peer rating:double = TopPeer;
-
-topPeerCategoryBotsPM#ab661b5b = TopPeerCategory;
-topPeerCategoryBotsInline#148677e2 = TopPeerCategory;
-topPeerCategoryCorrespondents#637b7ed = TopPeerCategory;
-topPeerCategoryGroups#bd17a14a = TopPeerCategory;
-topPeerCategoryChannels#161d9628 = TopPeerCategory;
-topPeerCategoryPhoneCalls#1e76a78c = TopPeerCategory;
-topPeerCategoryForwardUsers#a8406ca9 = TopPeerCategory;
-topPeerCategoryForwardChats#fbeec0f0 = TopPeerCategory;
-topPeerCategoryBotsApp#fd9e7bec = TopPeerCategory;
-
-topPeerCategoryPeers#fb834291 category:TopPeerCategory count:int peers:Vector<TopPeer> = TopPeerCategoryPeers;
-
-contacts.topPeersNotModified#de266ef5 = contacts.TopPeers;
-contacts.topPeers#70b772a8 categories:Vector<TopPeerCategoryPeers> chats:Vector<Chat> users:Vector<User> = contacts.TopPeers;
-contacts.topPeersDisabled#b52c939d = contacts.TopPeers;
-
-draftMessageEmpty#1b0c841a flags:# date:flags.0?int = DraftMessage;
-draftMessage#2d65321f flags:# no_webpage:flags.1?true invert_media:flags.6?true reply_to:flags.4?InputReplyTo message:string entities:flags.3?Vector<MessageEntity> media:flags.5?InputMedia date:int effect:flags.7?long = DraftMessage;
-
-messages.featuredStickersNotModified#c6dc0c66 count:int = messages.FeaturedStickers;
-messages.featuredStickers#be382906 flags:# premium:flags.0?true hash:long count:int sets:Vector<StickerSetCovered> unread:Vector<long> = messages.FeaturedStickers;
-
-messages.recentStickersNotModified#b17f890 = messages.RecentStickers;
-messages.recentStickers#88d37c56 hash:long packs:Vector<StickerPack> stickers:Vector<Document> dates:Vector<int> = messages.RecentStickers;
-
-messages.archivedStickers#4fcba9c8 count:int sets:Vector<StickerSetCovered> = messages.ArchivedStickers;
-
-messages.stickerSetInstallResultSuccess#38641628 = messages.StickerSetInstallResult;
-messages.stickerSetInstallResultArchive#35e410a8 sets:Vector<StickerSetCovered> = messages.StickerSetInstallResult;
-
-stickerSetCovered#6410a5d2 set:StickerSet cover:Document = StickerSetCovered;
-stickerSetMultiCovered#3407e51b set:StickerSet covers:Vector<Document> = StickerSetCovered;
-stickerSetFullCovered#40d13c0e set:StickerSet packs:Vector<StickerPack> keywords:Vector<StickerKeyword> documents:Vector<Document> = StickerSetCovered;
-stickerSetNoCovered#77b15d1c set:StickerSet = StickerSetCovered;
-
-maskCoords#aed6dbb2 n:int x:double y:double zoom:double = MaskCoords;
-
-inputStickeredMediaPhoto#4a992157 id:InputPhoto = InputStickeredMedia;
-inputStickeredMediaDocument#438865b id:InputDocument = InputStickeredMedia;
-
-game#bdf9653b flags:# id:long access_hash:long short_name:string title:string description:string photo:Photo document:flags.0?Document = Game;
-
-inputGameID#32c3e77 id:long access_hash:long = InputGame;
-inputGameShortName#c331e80a bot_id:InputUser short_name:string = InputGame;
-
-highScore#73a379eb pos:int user_id:long score:int = HighScore;
-
-messages.highScores#9a3bfd99 scores:Vector<HighScore> users:Vector<User> = messages.HighScores;
-
-textEmpty#dc3d824f = RichText;
-textPlain#744694e0 text:string = RichText;
-textBold#6724abc4 text:RichText = RichText;
-textItalic#d912a59c text:RichText = RichText;
-textUnderline#c12622c4 text:RichText = RichText;
-textStrike#9bf8bb95 text:RichText = RichText;
-textFixed#6c3f19b9 text:RichText = RichText;
-textUrl#3c2884c1 text:RichText url:string webpage_id:long = RichText;
-textEmail#de5a0dd6 text:RichText email:string = RichText;
-textConcat#7e6260d7 texts:Vector<RichText> = RichText;
-textSubscript#ed6a8504 text:RichText = RichText;
-textSuperscript#c7fb5e01 text:RichText = RichText;
-textMarked#34b8621 text:RichText = RichText;
-textPhone#1ccb966a text:RichText phone:string = RichText;
-textImage#81ccf4f document_id:long w:int h:int = RichText;
-textAnchor#35553762 text:RichText name:string = RichText;
-
-pageBlockUnsupported#13567e8a = PageBlock;
-pageBlockTitle#70abc3fd text:RichText = PageBlock;
-pageBlockSubtitle#8ffa9a1f text:RichText = PageBlock;
-pageBlockAuthorDate#baafe5e0 author:RichText published_date:int = PageBlock;
-pageBlockHeader#bfd064ec text:RichText = PageBlock;
-pageBlockSubheader#f12bb6e1 text:RichText = PageBlock;
-pageBlockParagraph#467a0766 text:RichText = PageBlock;
-pageBlockPreformatted#c070d93e text:RichText language:string = PageBlock;
-pageBlockFooter#48870999 text:RichText = PageBlock;
-pageBlockDivider#db20b188 = PageBlock;
-pageBlockAnchor#ce0d37b0 name:string = PageBlock;
-pageBlockList#e4e88011 items:Vector<PageListItem> = PageBlock;
-pageBlockBlockquote#263d7c26 text:RichText caption:RichText = PageBlock;
-pageBlockPullquote#4f4456d3 text:RichText caption:RichText = PageBlock;
-pageBlockPhoto#1759c560 flags:# photo_id:long caption:PageCaption url:flags.0?string webpage_id:flags.0?long = PageBlock;
-pageBlockVideo#7c8fe7b6 flags:# autoplay:flags.0?true loop:flags.1?true video_id:long caption:PageCaption = PageBlock;
-pageBlockCover#39f23300 cover:PageBlock = PageBlock;
-pageBlockEmbed#a8718dc5 flags:# full_width:flags.0?true allow_scrolling:flags.3?true url:flags.1?string html:flags.2?string poster_photo_id:flags.4?long w:flags.5?int h:flags.5?int caption:PageCaption = PageBlock;
-pageBlockEmbedPost#f259a80b url:string webpage_id:long author_photo_id:long author:string date:int blocks:Vector<PageBlock> caption:PageCaption = PageBlock;
-pageBlockCollage#65a0fa4d items:Vector<PageBlock> caption:PageCaption = PageBlock;
-pageBlockSlideshow#31f9590 items:Vector<PageBlock> caption:PageCaption = PageBlock;
-pageBlockChannel#ef1751b5 channel:Chat = PageBlock;
-pageBlockAudio#804361ea audio_id:long caption:PageCaption = PageBlock;
-pageBlockKicker#1e148390 text:RichText = PageBlock;
-pageBlockTable#bf4dea82 flags:# bordered:flags.0?true striped:flags.1?true title:RichText rows:Vector<PageTableRow> = PageBlock;
-pageBlockOrderedList#9a8ae1e1 items:Vector<PageListOrderedItem> = PageBlock;
-pageBlockDetails#76768bed flags:# open:flags.0?true blocks:Vector<PageBlock> title:RichText = PageBlock;
-pageBlockRelatedArticles#16115a96 title:RichText articles:Vector<PageRelatedArticle> = PageBlock;
-pageBlockMap#a44f3ef6 geo:GeoPoint zoom:int w:int h:int caption:PageCaption = PageBlock;
-
-phoneCallDiscardReasonMissed#85e42301 = PhoneCallDiscardReason;
-phoneCallDiscardReasonDisconnect#e095c1a0 = PhoneCallDiscardReason;
-phoneCallDiscardReasonHangup#57adc690 = PhoneCallDiscardReason;
-phoneCallDiscardReasonBusy#faf7e8c9 = PhoneCallDiscardReason;
-
-dataJSON#7d748d04 data:string = DataJSON;
-
-labeledPrice#cb296bf8 label:string amount:long = LabeledPrice;
-
-invoice#49ee584 flags:# test:flags.0?true name_requested:flags.1?true phone_requested:flags.2?true email_requested:flags.3?true shipping_address_requested:flags.4?true flexible:flags.5?true phone_to_provider:flags.6?true email_to_provider:flags.7?true recurring:flags.9?true currency:string prices:Vector<LabeledPrice> max_tip_amount:flags.8?long suggested_tip_amounts:flags.8?Vector<long> terms_url:flags.10?string subscription_period:flags.11?int = Invoice;
-
-paymentCharge#ea02c27e id:string provider_charge_id:string = PaymentCharge;
-
-postAddress#1e8caaeb street_line1:string street_line2:string city:string state:string country_iso2:string post_code:string = PostAddress;
-
-paymentRequestedInfo#909c3f94 flags:# name:flags.0?string phone:flags.1?string email:flags.2?string shipping_address:flags.3?PostAddress = PaymentRequestedInfo;
-
-paymentSavedCredentialsCard#cdc27a1f id:string title:string = PaymentSavedCredentials;
-
-webDocument#1c570ed1 url:string access_hash:long size:int mime_type:string attributes:Vector<DocumentAttribute> = WebDocument;
-webDocumentNoProxy#f9c8bcc6 url:string size:int mime_type:string attributes:Vector<DocumentAttribute> = WebDocument;
-
-inputWebDocument#9bed434d url:string size:int mime_type:string attributes:Vector<DocumentAttribute> = InputWebDocument;
-
-inputWebFileLocation#c239d686 url:string access_hash:long = InputWebFileLocation;
-inputWebFileGeoPointLocation#9f2221c9 geo_point:InputGeoPoint access_hash:long w:int h:int zoom:int scale:int = InputWebFileLocation;
-inputWebFileAudioAlbumThumbLocation#f46fe924 flags:# small:flags.2?true document:flags.0?InputDocument title:flags.1?string performer:flags.1?string = InputWebFileLocation;
-
-upload.webFile#21e753bc size:int mime_type:string file_type:storage.FileType mtime:int bytes:bytes = upload.WebFile;
-
-payments.paymentForm#a0058751 flags:# can_save_credentials:flags.2?true password_missing:flags.3?true form_id:long bot_id:long title:string description:string photo:flags.5?WebDocument invoice:Invoice provider_id:long url:string native_provider:flags.4?string native_params:flags.4?DataJSON additional_methods:flags.6?Vector<PaymentFormMethod> saved_info:flags.0?PaymentRequestedInfo saved_credentials:flags.1?Vector<PaymentSavedCredentials> users:Vector<User> = payments.PaymentForm;
-payments.paymentFormStars#7bf6b15c flags:# form_id:long bot_id:long title:string description:string photo:flags.5?WebDocument invoice:Invoice users:Vector<User> = payments.PaymentForm;
-payments.paymentFormStarGift#b425cfe1 form_id:long invoice:Invoice = payments.PaymentForm;
-
-payments.validatedRequestedInfo#d1451883 flags:# id:flags.0?string shipping_options:flags.1?Vector<ShippingOption> = payments.ValidatedRequestedInfo;
-
-payments.paymentResult#4e5f810d updates:Updates = payments.PaymentResult;
-payments.paymentVerificationNeeded#d8411139 url:string = payments.PaymentResult;
-
-payments.paymentReceipt#70c4fe03 flags:# date:int bot_id:long provider_id:long title:string description:string photo:flags.2?WebDocument invoice:Invoice info:flags.0?PaymentRequestedInfo shipping:flags.1?ShippingOption tip_amount:flags.3?long currency:string total_amount:long credentials_title:string users:Vector<User> = payments.PaymentReceipt;
-payments.paymentReceiptStars#dabbf83a flags:# date:int bot_id:long title:string description:string photo:flags.2?WebDocument invoice:Invoice currency:string total_amount:long transaction_id:string users:Vector<User> = payments.PaymentReceipt;
-
-payments.savedInfo#fb8fe43c flags:# has_saved_credentials:flags.1?true saved_info:flags.0?PaymentRequestedInfo = payments.SavedInfo;
-
-inputPaymentCredentialsSaved#c10eb2cf id:string tmp_password:bytes = InputPaymentCredentials;
-inputPaymentCredentials#3417d728 flags:# save:flags.0?true data:DataJSON = InputPaymentCredentials;
-inputPaymentCredentialsApplePay#aa1c39f payment_data:DataJSON = InputPaymentCredentials;
-inputPaymentCredentialsGooglePay#8ac32801 payment_token:DataJSON = InputPaymentCredentials;
-
-account.tmpPassword#db64fd34 tmp_password:bytes valid_until:int = account.TmpPassword;
-
-shippingOption#b6213cdf id:string title:string prices:Vector<LabeledPrice> = ShippingOption;
-
-inputStickerSetItem#32da9e9c flags:# document:InputDocument emoji:string mask_coords:flags.0?MaskCoords keywords:flags.1?string = InputStickerSetItem;
-
-inputPhoneCall#1e36fded id:long access_hash:long = InputPhoneCall;
-
-phoneCallEmpty#5366c915 id:long = PhoneCall;
-phoneCallWaiting#eed42858 flags:# video:flags.6?true id:long access_hash:long date:int admin_id:long participant_id:long protocol:PhoneCallProtocol receive_date:flags.0?int conference_call:flags.8?InputGroupCall = PhoneCall;
-phoneCallRequested#45361c63 flags:# video:flags.6?true id:long access_hash:long date:int admin_id:long participant_id:long g_a_hash:bytes protocol:PhoneCallProtocol conference_call:flags.8?InputGroupCall = PhoneCall;
-phoneCallAccepted#22fd7181 flags:# video:flags.6?true id:long access_hash:long date:int admin_id:long participant_id:long g_b:bytes protocol:PhoneCallProtocol conference_call:flags.8?InputGroupCall = PhoneCall;
-phoneCall#3ba5940c flags:# p2p_allowed:flags.5?true video:flags.6?true id:long access_hash:long date:int admin_id:long participant_id:long g_a_or_b:bytes key_fingerprint:long protocol:PhoneCallProtocol connections:Vector<PhoneConnection> start_date:int custom_parameters:flags.7?DataJSON conference_call:flags.8?InputGroupCall = PhoneCall;
-phoneCallDiscarded#f9d25503 flags:# need_rating:flags.2?true need_debug:flags.3?true video:flags.6?true id:long reason:flags.0?PhoneCallDiscardReason duration:flags.1?int conference_call:flags.8?InputGroupCall = PhoneCall;
-
-phoneConnection#9cc123c7 flags:# tcp:flags.0?true id:long ip:string ipv6:string port:int peer_tag:bytes = PhoneConnection;
-phoneConnectionWebrtc#635fe375 flags:# turn:flags.0?true stun:flags.1?true id:long ip:string ipv6:string port:int username:string password:string = PhoneConnection;
-
-phoneCallProtocol#fc878fc8 flags:# udp_p2p:flags.0?true udp_reflector:flags.1?true min_layer:int max_layer:int library_versions:Vector<string> = PhoneCallProtocol;
-
-phone.phoneCall#ec82e140 phone_call:PhoneCall users:Vector<User> = phone.PhoneCall;
-
-upload.cdnFileReuploadNeeded#eea8e46e request_token:bytes = upload.CdnFile;
-upload.cdnFile#a99fca4f bytes:bytes = upload.CdnFile;
-
-cdnPublicKey#c982eaba dc_id:int public_key:string = CdnPublicKey;
-
-cdnConfig#5725e40a public_keys:Vector<CdnPublicKey> = CdnConfig;
-
-langPackString#cad181f6 key:string value:string = LangPackString;
-langPackStringPluralized#6c47ac9f flags:# key:string zero_value:flags.0?string one_value:flags.1?string two_value:flags.2?string few_value:flags.3?string many_value:flags.4?string other_value:string = LangPackString;
-langPackStringDeleted#2979eeb2 key:string = LangPackString;
-
-langPackDifference#f385c1f6 lang_code:string from_version:int version:int strings:Vector<LangPackString> = LangPackDifference;
-
-langPackLanguage#eeca5ce3 flags:# official:flags.0?true rtl:flags.2?true beta:flags.3?true name:string native_name:string lang_code:string base_lang_code:flags.1?string plural_code:string strings_count:int translated_count:int translations_url:string = LangPackLanguage;
-
-channelAdminLogEventActionChangeTitle#e6dfb825 prev_value:string new_value:string = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeAbout#55188a2e prev_value:string new_value:string = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeUsername#6a4afc38 prev_value:string new_value:string = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangePhoto#434bd2af prev_photo:Photo new_photo:Photo = ChannelAdminLogEventAction;
-channelAdminLogEventActionToggleInvites#1b7907ae new_value:Bool = ChannelAdminLogEventAction;
-channelAdminLogEventActionToggleSignatures#26ae0971 new_value:Bool = ChannelAdminLogEventAction;
-channelAdminLogEventActionUpdatePinned#e9e82c18 message:Message = ChannelAdminLogEventAction;
-channelAdminLogEventActionEditMessage#709b2405 prev_message:Message new_message:Message = ChannelAdminLogEventAction;
-channelAdminLogEventActionDeleteMessage#42e047bb message:Message = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantJoin#183040d3 = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantLeave#f89777f2 = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantInvite#e31c34d8 participant:ChannelParticipant = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantToggleBan#e6d83d7e prev_participant:ChannelParticipant new_participant:ChannelParticipant = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantToggleAdmin#d5676710 prev_participant:ChannelParticipant new_participant:ChannelParticipant = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeStickerSet#b1c3caa7 prev_stickerset:InputStickerSet new_stickerset:InputStickerSet = ChannelAdminLogEventAction;
-channelAdminLogEventActionTogglePreHistoryHidden#5f5c95f1 new_value:Bool = ChannelAdminLogEventAction;
-channelAdminLogEventActionDefaultBannedRights#2df5fc0a prev_banned_rights:ChatBannedRights new_banned_rights:ChatBannedRights = ChannelAdminLogEventAction;
-channelAdminLogEventActionStopPoll#8f079643 message:Message = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeLinkedChat#50c7ac8 prev_value:long new_value:long = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeLocation#e6b76ae prev_value:ChannelLocation new_value:ChannelLocation = ChannelAdminLogEventAction;
-channelAdminLogEventActionToggleSlowMode#53909779 prev_value:int new_value:int = ChannelAdminLogEventAction;
-channelAdminLogEventActionStartGroupCall#23209745 call:InputGroupCall = ChannelAdminLogEventAction;
-channelAdminLogEventActionDiscardGroupCall#db9f9140 call:InputGroupCall = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantMute#f92424d2 participant:GroupCallParticipant = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantUnmute#e64429c0 participant:GroupCallParticipant = ChannelAdminLogEventAction;
-channelAdminLogEventActionToggleGroupCallSetting#56d6a247 join_muted:Bool = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantJoinByInvite#fe9fc158 flags:# via_chatlist:flags.0?true invite:ExportedChatInvite = ChannelAdminLogEventAction;
-channelAdminLogEventActionExportedInviteDelete#5a50fca4 invite:ExportedChatInvite = ChannelAdminLogEventAction;
-channelAdminLogEventActionExportedInviteRevoke#410a134e invite:ExportedChatInvite = ChannelAdminLogEventAction;
-channelAdminLogEventActionExportedInviteEdit#e90ebb59 prev_invite:ExportedChatInvite new_invite:ExportedChatInvite = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantVolume#3e7f6847 participant:GroupCallParticipant = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeHistoryTTL#6e941a38 prev_value:int new_value:int = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantJoinByRequest#afb6144a invite:ExportedChatInvite approved_by:long = ChannelAdminLogEventAction;
-channelAdminLogEventActionToggleNoForwards#cb2ac766 new_value:Bool = ChannelAdminLogEventAction;
-channelAdminLogEventActionSendMessage#278f2868 message:Message = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeAvailableReactions#be4e0ef8 prev_value:ChatReactions new_value:ChatReactions = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeUsernames#f04fb3a9 prev_value:Vector<string> new_value:Vector<string> = ChannelAdminLogEventAction;
-channelAdminLogEventActionToggleForum#2cc6383 new_value:Bool = ChannelAdminLogEventAction;
-channelAdminLogEventActionCreateTopic#58707d28 topic:ForumTopic = ChannelAdminLogEventAction;
-channelAdminLogEventActionEditTopic#f06fe208 prev_topic:ForumTopic new_topic:ForumTopic = ChannelAdminLogEventAction;
-channelAdminLogEventActionDeleteTopic#ae168909 topic:ForumTopic = ChannelAdminLogEventAction;
-channelAdminLogEventActionPinTopic#5d8d353b flags:# prev_topic:flags.0?ForumTopic new_topic:flags.1?ForumTopic = ChannelAdminLogEventAction;
-channelAdminLogEventActionToggleAntiSpam#64f36dfc new_value:Bool = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangePeerColor#5796e780 prev_value:PeerColor new_value:PeerColor = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeProfilePeerColor#5e477b25 prev_value:PeerColor new_value:PeerColor = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeWallpaper#31bb5d52 prev_value:WallPaper new_value:WallPaper = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeEmojiStatus#3ea9feb1 prev_value:EmojiStatus new_value:EmojiStatus = ChannelAdminLogEventAction;
-channelAdminLogEventActionChangeEmojiStickerSet#46d840ab prev_stickerset:InputStickerSet new_stickerset:InputStickerSet = ChannelAdminLogEventAction;
-channelAdminLogEventActionToggleSignatureProfiles#60a79c79 new_value:Bool = ChannelAdminLogEventAction;
-channelAdminLogEventActionParticipantSubExtend#64642db3 prev_participant:ChannelParticipant new_participant:ChannelParticipant = ChannelAdminLogEventAction;
-
-channelAdminLogEvent#1fad68cd id:long date:int user_id:long action:ChannelAdminLogEventAction = ChannelAdminLogEvent;
-
-channels.adminLogResults#ed8af74d events:Vector<ChannelAdminLogEvent> chats:Vector<Chat> users:Vector<User> = channels.AdminLogResults;
-
-channelAdminLogEventsFilter#ea107ae4 flags:# join:flags.0?true leave:flags.1?true invite:flags.2?true ban:flags.3?true unban:flags.4?true kick:flags.5?true unkick:flags.6?true promote:flags.7?true demote:flags.8?true info:flags.9?true settings:flags.10?true pinned:flags.11?true edit:flags.12?true delete:flags.13?true group_call:flags.14?true invites:flags.15?true send:flags.16?true forums:flags.17?true sub_extend:flags.18?true = ChannelAdminLogEventsFilter;
-
-popularContact#5ce14175 client_id:long importers:int = PopularContact;
-
-messages.favedStickersNotModified#9e8fa6d3 = messages.FavedStickers;
-messages.favedStickers#2cb51097 hash:long packs:Vector<StickerPack> stickers:Vector<Document> = messages.FavedStickers;
-
-recentMeUrlUnknown#46e1d13d url:string = RecentMeUrl;
-recentMeUrlUser#b92c09e2 url:string user_id:long = RecentMeUrl;
-recentMeUrlChat#b2da71d2 url:string chat_id:long = RecentMeUrl;
-recentMeUrlChatInvite#eb49081d url:string chat_invite:ChatInvite = RecentMeUrl;
-recentMeUrlStickerSet#bc0a57dc url:string set:StickerSetCovered = RecentMeUrl;
-
-help.recentMeUrls#e0310d7 urls:Vector<RecentMeUrl> chats:Vector<Chat> users:Vector<User> = help.RecentMeUrls;
-
-inputSingleMedia#1cc6e91f flags:# media:InputMedia random_id:long message:string entities:flags.0?Vector<MessageEntity> = InputSingleMedia;
-
-webAuthorization#a6f8f452 hash:long bot_id:long domain:string browser:string platform:string date_created:int date_active:int ip:string region:string = WebAuthorization;
-
-account.webAuthorizations#ed56c9fc authorizations:Vector<WebAuthorization> users:Vector<User> = account.WebAuthorizations;
-
-inputMessageID#a676a322 id:int = InputMessage;
-inputMessageReplyTo#bad88395 id:int = InputMessage;
-inputMessagePinned#86872538 = InputMessage;
-inputMessageCallbackQuery#acfa1a7e id:int query_id:long = InputMessage;
-
-inputDialogPeer#fcaafeb7 peer:InputPeer = InputDialogPeer;
-inputDialogPeerFolder#64600527 folder_id:int = InputDialogPeer;
-
-dialogPeer#e56dbf05 peer:Peer = DialogPeer;
-dialogPeerFolder#514519e2 folder_id:int = DialogPeer;
-
-messages.foundStickerSetsNotModified#d54b65d = messages.FoundStickerSets;
-messages.foundStickerSets#8af09dd2 hash:long sets:Vector<StickerSetCovered> = messages.FoundStickerSets;
-
-fileHash#f39b035c offset:long limit:int hash:bytes = FileHash;
-
-inputClientProxy#75588b3f address:string port:int = InputClientProxy;
-
-help.termsOfServiceUpdateEmpty#e3309f7f expires:int = help.TermsOfServiceUpdate;
-help.termsOfServiceUpdate#28ecf961 expires:int terms_of_service:help.TermsOfService = help.TermsOfServiceUpdate;
-
-inputSecureFileUploaded#3334b0f0 id:long parts:int md5_checksum:string file_hash:bytes secret:bytes = InputSecureFile;
-inputSecureFile#5367e5be id:long access_hash:long = InputSecureFile;
-
-secureFileEmpty#64199744 = SecureFile;
-secureFile#7d09c27e id:long access_hash:long size:long dc_id:int date:int file_hash:bytes secret:bytes = SecureFile;
-
-secureData#8aeabec3 data:bytes data_hash:bytes secret:bytes = SecureData;
-
-securePlainPhone#7d6099dd phone:string = SecurePlainData;
-securePlainEmail#21ec5a5f email:string = SecurePlainData;
-
-secureValueTypePersonalDetails#9d2a81e3 = SecureValueType;
-secureValueTypePassport#3dac6a00 = SecureValueType;
-secureValueTypeDriverLicense#6e425c4 = SecureValueType;
-secureValueTypeIdentityCard#a0d0744b = SecureValueType;
-secureValueTypeInternalPassport#99a48f23 = SecureValueType;
-secureValueTypeAddress#cbe31e26 = SecureValueType;
-secureValueTypeUtilityBill#fc36954e = SecureValueType;
-secureValueTypeBankStatement#89137c0d = SecureValueType;
-secureValueTypeRentalAgreement#8b883488 = SecureValueType;
-secureValueTypePassportRegistration#99e3806a = SecureValueType;
-secureValueTypeTemporaryRegistration#ea02ec33 = SecureValueType;
-secureValueTypePhone#b320aadb = SecureValueType;
-secureValueTypeEmail#8e3ca7ee = SecureValueType;
-
-secureValue#187fa0ca flags:# type:SecureValueType data:flags.0?SecureData front_side:flags.1?SecureFile reverse_side:flags.2?SecureFile selfie:flags.3?SecureFile translation:flags.6?Vector<SecureFile> files:flags.4?Vector<SecureFile> plain_data:flags.5?SecurePlainData hash:bytes = SecureValue;
-
-inputSecureValue#db21d0a7 flags:# type:SecureValueType data:flags.0?SecureData front_side:flags.1?InputSecureFile reverse_side:flags.2?InputSecureFile selfie:flags.3?InputSecureFile translation:flags.6?Vector<InputSecureFile> files:flags.4?Vector<InputSecureFile> plain_data:flags.5?SecurePlainData = InputSecureValue;
-
-secureValueHash#ed1ecdb0 type:SecureValueType hash:bytes = SecureValueHash;
-
-secureValueErrorData#e8a40bd9 type:SecureValueType data_hash:bytes field:string text:string = SecureValueError;
-secureValueErrorFrontSide#be3dfa type:SecureValueType file_hash:bytes text:string = SecureValueError;
-secureValueErrorReverseSide#868a2aa5 type:SecureValueType file_hash:bytes text:string = SecureValueError;
-secureValueErrorSelfie#e537ced6 type:SecureValueType file_hash:bytes text:string = SecureValueError;
-secureValueErrorFile#7a700873 type:SecureValueType file_hash:bytes text:string = SecureValueError;
-secureValueErrorFiles#666220e9 type:SecureValueType file_hash:Vector<bytes> text:string = SecureValueError;
-secureValueError#869d758f type:SecureValueType hash:bytes text:string = SecureValueError;
-secureValueErrorTranslationFile#a1144770 type:SecureValueType file_hash:bytes text:string = SecureValueError;
-secureValueErrorTranslationFiles#34636dd8 type:SecureValueType file_hash:Vector<bytes> text:string = SecureValueError;
-
-secureCredentialsEncrypted#33f0ea47 data:bytes hash:bytes secret:bytes = SecureCredentialsEncrypted;
-
-account.authorizationForm#ad2e1cd8 flags:# required_types:Vector<SecureRequiredType> values:Vector<SecureValue> errors:Vector<SecureValueError> users:Vector<User> privacy_policy_url:flags.0?string = account.AuthorizationForm;
-
-account.sentEmailCode#811f854f email_pattern:string length:int = account.SentEmailCode;
-
-help.deepLinkInfoEmpty#66afa166 = help.DeepLinkInfo;
-help.deepLinkInfo#6a4ee832 flags:# update_app:flags.0?true message:string entities:flags.1?Vector<MessageEntity> = help.DeepLinkInfo;
-
-savedPhoneContact#1142bd56 phone:string first_name:string last_name:string date:int = SavedContact;
-
-account.takeout#4dba4501 id:long = account.Takeout;
-
-passwordKdfAlgoUnknown#d45ab096 = PasswordKdfAlgo;
-passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow#3a912d4a salt1:bytes salt2:bytes g:int p:bytes = PasswordKdfAlgo;
-
-securePasswordKdfAlgoUnknown#4a8537 = SecurePasswordKdfAlgo;
-securePasswordKdfAlgoPBKDF2HMACSHA512iter100000#bbf2dda0 salt:bytes = SecurePasswordKdfAlgo;
-securePasswordKdfAlgoSHA512#86471d92 salt:bytes = SecurePasswordKdfAlgo;
-
-secureSecretSettings#1527bcac secure_algo:SecurePasswordKdfAlgo secure_secret:bytes secure_secret_id:long = SecureSecretSettings;
-
-inputCheckPasswordEmpty#9880f658 = InputCheckPasswordSRP;
-inputCheckPasswordSRP#d27ff082 srp_id:long A:bytes M1:bytes = InputCheckPasswordSRP;
-
-secureRequiredType#829d99da flags:# native_names:flags.0?true selfie_required:flags.1?true translation_required:flags.2?true type:SecureValueType = SecureRequiredType;
-secureRequiredTypeOneOf#27477b4 types:Vector<SecureRequiredType> = SecureRequiredType;
-
-help.passportConfigNotModified#bfb9f457 = help.PassportConfig;
-help.passportConfig#a098d6af hash:int countries_langs:DataJSON = help.PassportConfig;
-
-inputAppEvent#1d1b1245 time:double type:string peer:long data:JSONValue = InputAppEvent;
-
-jsonObjectValue#c0de1bd9 key:string value:JSONValue = JSONObjectValue;
-
-jsonNull#3f6d7b68 = JSONValue;
-jsonBool#c7345e6a value:Bool = JSONValue;
-jsonNumber#2be0dfa4 value:double = JSONValue;
-jsonString#b71e767a value:string = JSONValue;
-jsonArray#f7444763 value:Vector<JSONValue> = JSONValue;
-jsonObject#99c1d49d value:Vector<JSONObjectValue> = JSONValue;
-
-pageTableCell#34566b6a flags:# header:flags.0?true align_center:flags.3?true align_right:flags.4?true valign_middle:flags.5?true valign_bottom:flags.6?true text:flags.7?RichText colspan:flags.1?int rowspan:flags.2?int = PageTableCell;
-
-pageTableRow#e0c0c5e5 cells:Vector<PageTableCell> = PageTableRow;
-
-pageCaption#6f747657 text:RichText credit:RichText = PageCaption;
-
-pageListItemText#b92fb6cd text:RichText = PageListItem;
-pageListItemBlocks#25e073fc blocks:Vector<PageBlock> = PageListItem;
-
-pageListOrderedItemText#5e068047 num:string text:RichText = PageListOrderedItem;
-pageListOrderedItemBlocks#98dd8936 num:string blocks:Vector<PageBlock> = PageListOrderedItem;
-
-pageRelatedArticle#b390dc08 flags:# url:string webpage_id:long title:flags.0?string description:flags.1?string photo_id:flags.2?long author:flags.3?string published_date:flags.4?int = PageRelatedArticle;
-
-page#98657f0d flags:# part:flags.0?true rtl:flags.1?true v2:flags.2?true url:string blocks:Vector<PageBlock> photos:Vector<Photo> documents:Vector<Document> views:flags.3?int = Page;
-
-help.supportName#8c05f1c9 name:string = help.SupportName;
-
-help.userInfoEmpty#f3ae2eed = help.UserInfo;
-help.userInfo#1eb3758 message:string entities:Vector<MessageEntity> author:string date:int = help.UserInfo;
-
-pollAnswer#ff16e2ca text:TextWithEntities option:bytes = PollAnswer;
-
-poll#58747131 id:long flags:# closed:flags.0?true public_voters:flags.1?true multiple_choice:flags.2?true quiz:flags.3?true question:TextWithEntities answers:Vector<PollAnswer> close_period:flags.4?int close_date:flags.5?int = Poll;
-
-pollAnswerVoters#3b6ddad2 flags:# chosen:flags.0?true correct:flags.1?true option:bytes voters:int = PollAnswerVoters;
-
-pollResults#7adf2420 flags:# min:flags.0?true results:flags.1?Vector<PollAnswerVoters> total_voters:flags.2?int recent_voters:flags.3?Vector<Peer> solution:flags.4?string solution_entities:flags.4?Vector<MessageEntity> = PollResults;
-
-chatOnlines#f041e250 onlines:int = ChatOnlines;
-
-statsURL#47a971e0 url:string = StatsURL;
-
-chatAdminRights#5fb224d5 flags:# change_info:flags.0?true post_messages:flags.1?true edit_messages:flags.2?true delete_messages:flags.3?true ban_users:flags.4?true invite_users:flags.5?true pin_messages:flags.7?true add_admins:flags.9?true anonymous:flags.10?true manage_call:flags.11?true other:flags.12?true manage_topics:flags.13?true post_stories:flags.14?true edit_stories:flags.15?true delete_stories:flags.16?true = ChatAdminRights;
-
-chatBannedRights#9f120418 flags:# view_messages:flags.0?true send_messages:flags.1?true send_media:flags.2?true send_stickers:flags.3?true send_gifs:flags.4?true send_games:flags.5?true send_inline:flags.6?true embed_links:flags.7?true send_polls:flags.8?true change_info:flags.10?true invite_users:flags.15?true pin_messages:flags.17?true manage_topics:flags.18?true send_photos:flags.19?true send_videos:flags.20?true send_roundvideos:flags.21?true send_audios:flags.22?true send_voices:flags.23?true send_docs:flags.24?true send_plain:flags.25?true until_date:int = ChatBannedRights;
-
-inputWallPaper#e630b979 id:long access_hash:long = InputWallPaper;
-inputWallPaperSlug#72091c80 slug:string = InputWallPaper;
-inputWallPaperNoFile#967a462e id:long = InputWallPaper;
-
-account.wallPapersNotModified#1c199183 = account.WallPapers;
-account.wallPapers#cdc3858c hash:long wallpapers:Vector<WallPaper> = account.WallPapers;
-
-codeSettings#ad253d78 flags:# allow_flashcall:flags.0?true current_number:flags.1?true allow_app_hash:flags.4?true allow_missed_call:flags.5?true allow_firebase:flags.7?true unknown_number:flags.9?true logout_tokens:flags.6?Vector<bytes> token:flags.8?string app_sandbox:flags.8?Bool = CodeSettings;
-
-wallPaperSettings#372efcd0 flags:# blur:flags.1?true motion:flags.2?true background_color:flags.0?int second_background_color:flags.4?int third_background_color:flags.5?int fourth_background_color:flags.6?int intensity:flags.3?int rotation:flags.4?int emoticon:flags.7?string = WallPaperSettings;
-
-autoDownloadSettings#baa57628 flags:# disabled:flags.0?true video_preload_large:flags.1?true audio_preload_next:flags.2?true phonecalls_less_data:flags.3?true stories_preload:flags.4?true photo_size_max:int video_size_max:long file_size_max:long video_upload_maxbitrate:int small_queue_active_operations_max:int large_queue_active_operations_max:int = AutoDownloadSettings;
-
-account.autoDownloadSettings#63cacf26 low:AutoDownloadSettings medium:AutoDownloadSettings high:AutoDownloadSettings = account.AutoDownloadSettings;
-
-emojiKeyword#d5b3b9f9 keyword:string emoticons:Vector<string> = EmojiKeyword;
-emojiKeywordDeleted#236df622 keyword:string emoticons:Vector<string> = EmojiKeyword;
-
-emojiKeywordsDifference#5cc761bd lang_code:string from_version:int version:int keywords:Vector<EmojiKeyword> = EmojiKeywordsDifference;
-
-emojiURL#a575739d url:string = EmojiURL;
-
-emojiLanguage#b3fb5361 lang_code:string = EmojiLanguage;
-
-folder#ff544e65 flags:# autofill_new_broadcasts:flags.0?true autofill_public_groups:flags.1?true autofill_new_correspondents:flags.2?true id:int title:string photo:flags.3?ChatPhoto = Folder;
-
-inputFolderPeer#fbd2c296 peer:InputPeer folder_id:int = InputFolderPeer;
-
-folderPeer#e9baa668 peer:Peer folder_id:int = FolderPeer;
-
-messages.searchCounter#e844ebff flags:# inexact:flags.1?true filter:MessagesFilter count:int = messages.SearchCounter;
-
-urlAuthResultRequest#92d33a0e flags:# request_write_access:flags.0?true bot:User domain:string = UrlAuthResult;
-urlAuthResultAccepted#8f8c0e4e url:string = UrlAuthResult;
-urlAuthResultDefault#a9d6db1f = UrlAuthResult;
-
-channelLocationEmpty#bfb5ad8b = ChannelLocation;
-channelLocation#209b82db geo_point:GeoPoint address:string = ChannelLocation;
-
-peerLocated#ca461b5d peer:Peer expires:int distance:int = PeerLocated;
-peerSelfLocated#f8ec284b expires:int = PeerLocated;
-
-restrictionReason#d072acb4 platform:string reason:string text:string = RestrictionReason;
-
-inputTheme#3c5693e9 id:long access_hash:long = InputTheme;
-inputThemeSlug#f5890df1 slug:string = InputTheme;
-
-theme#a00e67d6 flags:# creator:flags.0?true default:flags.1?true for_chat:flags.5?true id:long access_hash:long slug:string title:string document:flags.2?Document settings:flags.3?Vector<ThemeSettings> emoticon:flags.6?string installs_count:flags.4?int = Theme;
-
-account.themesNotModified#f41eb622 = account.Themes;
-account.themes#9a3d8c6d hash:long themes:Vector<Theme> = account.Themes;
-
-auth.loginToken#629f1980 expires:int token:bytes = auth.LoginToken;
-auth.loginTokenMigrateTo#68e9916 dc_id:int token:bytes = auth.LoginToken;
-auth.loginTokenSuccess#390d5c5e authorization:auth.Authorization = auth.LoginToken;
-
-account.contentSettings#57e28221 flags:# sensitive_enabled:flags.0?true sensitive_can_change:flags.1?true = account.ContentSettings;
-
-messages.inactiveChats#a927fec5 dates:Vector<int> chats:Vector<Chat> users:Vector<User> = messages.InactiveChats;
-
-baseThemeClassic#c3a12462 = BaseTheme;
-baseThemeDay#fbd81688 = BaseTheme;
-baseThemeNight#b7b31ea8 = BaseTheme;
-baseThemeTinted#6d5f77ee = BaseTheme;
-baseThemeArctic#5b11125a = BaseTheme;
-
-inputThemeSettings#8fde504f flags:# message_colors_animated:flags.2?true base_theme:BaseTheme accent_color:int outbox_accent_color:flags.3?int message_colors:flags.0?Vector<int> wallpaper:flags.1?InputWallPaper wallpaper_settings:flags.1?WallPaperSettings = InputThemeSettings;
-
-themeSettings#fa58b6d4 flags:# message_colors_animated:flags.2?true base_theme:BaseTheme accent_color:int outbox_accent_color:flags.3?int message_colors:flags.0?Vector<int> wallpaper:flags.1?WallPaper = ThemeSettings;
-
-webPageAttributeTheme#54b56617 flags:# documents:flags.0?Vector<Document> settings:flags.1?ThemeSettings = WebPageAttribute;
-webPageAttributeStory#2e94c3e7 flags:# peer:Peer id:int story:flags.0?StoryItem = WebPageAttribute;
-webPageAttributeStickerSet#50cc03d3 flags:# emojis:flags.0?true text_color:flags.1?true stickers:Vector<Document> = WebPageAttribute;
-webPageAttributeUniqueStarGift#cf6f6db8 gift:StarGift = WebPageAttribute;
-
-messages.votesList#4899484e flags:# count:int votes:Vector<MessagePeerVote> chats:Vector<Chat> users:Vector<User> next_offset:flags.0?string = messages.VotesList;
-
-bankCardOpenUrl#f568028a url:string name:string = BankCardOpenUrl;
-
-payments.bankCardData#3e24e573 title:string open_urls:Vector<BankCardOpenUrl> = payments.BankCardData;
-
-dialogFilter#aa472651 flags:# contacts:flags.0?true non_contacts:flags.1?true groups:flags.2?true broadcasts:flags.3?true bots:flags.4?true exclude_muted:flags.11?true exclude_read:flags.12?true exclude_archived:flags.13?true title_noanimate:flags.28?true id:int title:TextWithEntities emoticon:flags.25?string color:flags.27?int pinned_peers:Vector<InputPeer> include_peers:Vector<InputPeer> exclude_peers:Vector<InputPeer> = DialogFilter;
-dialogFilterDefault#363293ae = DialogFilter;
-dialogFilterChatlist#96537bd7 flags:# has_my_invites:flags.26?true title_noanimate:flags.28?true id:int title:TextWithEntities emoticon:flags.25?string color:flags.27?int pinned_peers:Vector<InputPeer> include_peers:Vector<InputPeer> = DialogFilter;
-
-dialogFilterSuggested#77744d4a filter:DialogFilter description:string = DialogFilterSuggested;
-
-statsDateRangeDays#b637edaf min_date:int max_date:int = StatsDateRangeDays;
-
-statsAbsValueAndPrev#cb43acde current:double previous:double = StatsAbsValueAndPrev;
-
-statsPercentValue#cbce2fe0 part:double total:double = StatsPercentValue;
-
-statsGraphAsync#4a27eb2d token:string = StatsGraph;
-statsGraphError#bedc9822 error:string = StatsGraph;
-statsGraph#8ea464b6 flags:# json:DataJSON zoom_token:flags.0?string = StatsGraph;
-
-stats.broadcastStats#396ca5fc period:StatsDateRangeDays followers:StatsAbsValueAndPrev views_per_post:StatsAbsValueAndPrev shares_per_post:StatsAbsValueAndPrev reactions_per_post:StatsAbsValueAndPrev views_per_story:StatsAbsValueAndPrev shares_per_story:StatsAbsValueAndPrev reactions_per_story:StatsAbsValueAndPrev enabled_notifications:StatsPercentValue growth_graph:StatsGraph followers_graph:StatsGraph mute_graph:StatsGraph top_hours_graph:StatsGraph interactions_graph:StatsGraph iv_interactions_graph:StatsGraph views_by_source_graph:StatsGraph new_followers_by_source_graph:StatsGraph languages_graph:StatsGraph reactions_by_emotion_graph:StatsGraph story_interactions_graph:StatsGraph story_reactions_by_emotion_graph:StatsGraph recent_posts_interactions:Vector<PostInteractionCounters> = stats.BroadcastStats;
-
-help.promoDataEmpty#98f6ac75 expires:int = help.PromoData;
-help.promoData#8c39793f flags:# proxy:flags.0?true expires:int peer:Peer chats:Vector<Chat> users:Vector<User> psa_type:flags.1?string psa_message:flags.2?string = help.PromoData;
-
-videoSize#de33b094 flags:# type:string w:int h:int size:int video_start_ts:flags.0?double = VideoSize;
-videoSizeEmojiMarkup#f85c413c emoji_id:long background_colors:Vector<int> = VideoSize;
-videoSizeStickerMarkup#da082fe stickerset:InputStickerSet sticker_id:long background_colors:Vector<int> = VideoSize;
-
-statsGroupTopPoster#9d04af9b user_id:long messages:int avg_chars:int = StatsGroupTopPoster;
-
-statsGroupTopAdmin#d7584c87 user_id:long deleted:int kicked:int banned:int = StatsGroupTopAdmin;
-
-statsGroupTopInviter#535f779d user_id:long invitations:int = StatsGroupTopInviter;
-
-stats.megagroupStats#ef7ff916 period:StatsDateRangeDays members:StatsAbsValueAndPrev messages:StatsAbsValueAndPrev viewers:StatsAbsValueAndPrev posters:StatsAbsValueAndPrev growth_graph:StatsGraph members_graph:StatsGraph new_members_by_source_graph:StatsGraph languages_graph:StatsGraph messages_graph:StatsGraph actions_graph:StatsGraph top_hours_graph:StatsGraph weekdays_graph:StatsGraph top_posters:Vector<StatsGroupTopPoster> top_admins:Vector<StatsGroupTopAdmin> top_inviters:Vector<StatsGroupTopInviter> users:Vector<User> = stats.MegagroupStats;
-
-globalPrivacySettings#fe41b34f flags:# archive_and_mute_new_noncontact_peers:flags.0?true keep_archived_unmuted:flags.1?true keep_archived_folders:flags.2?true hide_read_marks:flags.3?true new_noncontact_peers_require_premium:flags.4?true display_gifts_button:flags.7?true noncontact_peers_paid_stars:flags.5?long disallowed_gifts:flags.6?DisallowedGiftsSettings = GlobalPrivacySettings;
-
-help.countryCode#4203c5ef flags:# country_code:string prefixes:flags.0?Vector<string> patterns:flags.1?Vector<string> = help.CountryCode;
-
-help.country#c3878e23 flags:# hidden:flags.0?true iso2:string default_name:string name:flags.1?string country_codes:Vector<help.CountryCode> = help.Country;
-
-help.countriesListNotModified#93cc1f32 = help.CountriesList;
-help.countriesList#87d0759e countries:Vector<help.Country> hash:int = help.CountriesList;
-
-messageViews#455b853d flags:# views:flags.0?int forwards:flags.1?int replies:flags.2?MessageReplies = MessageViews;
-
-messages.messageViews#b6c4f543 views:Vector<MessageViews> chats:Vector<Chat> users:Vector<User> = messages.MessageViews;
-
-messages.discussionMessage#a6341782 flags:# messages:Vector<Message> max_id:flags.0?int read_inbox_max_id:flags.1?int read_outbox_max_id:flags.2?int unread_count:int chats:Vector<Chat> users:Vector<User> = messages.DiscussionMessage;
-
-messageReplyHeader#afbc09db flags:# reply_to_scheduled:flags.2?true forum_topic:flags.3?true quote:flags.9?true reply_to_msg_id:flags.4?int reply_to_peer_id:flags.0?Peer reply_from:flags.5?MessageFwdHeader reply_media:flags.8?MessageMedia reply_to_top_id:flags.1?int quote_text:flags.6?string quote_entities:flags.7?Vector<MessageEntity> quote_offset:flags.10?int = MessageReplyHeader;
-messageReplyStoryHeader#e5af939 peer:Peer story_id:int = MessageReplyHeader;
-
-messageReplies#83d60fc2 flags:# comments:flags.0?true replies:int replies_pts:int recent_repliers:flags.1?Vector<Peer> channel_id:flags.0?long max_id:flags.2?int read_max_id:flags.3?int = MessageReplies;
-
-peerBlocked#e8fd8014 peer_id:Peer date:int = PeerBlocked;
-
-stats.messageStats#7fe91c14 views_graph:StatsGraph reactions_by_emotion_graph:StatsGraph = stats.MessageStats;
-
-groupCallDiscarded#7780bcb4 id:long access_hash:long duration:int = GroupCall;
-groupCall#cdf8d3e3 flags:# join_muted:flags.1?true can_change_join_muted:flags.2?true join_date_asc:flags.6?true schedule_start_subscribed:flags.8?true can_start_video:flags.9?true record_video_active:flags.11?true rtmp_stream:flags.12?true listeners_hidden:flags.13?true id:long access_hash:long participants_count:int title:flags.3?string stream_dc_id:flags.4?int record_start_date:flags.5?int schedule_date:flags.7?int unmuted_video_count:flags.10?int unmuted_video_limit:int version:int conference_from_call:flags.14?long = GroupCall;
-
-inputGroupCall#d8aa840f id:long access_hash:long = InputGroupCall;
-
-groupCallParticipant#eba636fe flags:# muted:flags.0?true left:flags.1?true can_self_unmute:flags.2?true just_joined:flags.4?true versioned:flags.5?true min:flags.8?true muted_by_you:flags.9?true volume_by_admin:flags.10?true self:flags.12?true video_joined:flags.15?true peer:Peer date:int active_date:flags.3?int source:int volume:flags.7?int about:flags.11?string raise_hand_rating:flags.13?long video:flags.6?GroupCallParticipantVideo presentation:flags.14?GroupCallParticipantVideo = GroupCallParticipant;
-
-phone.groupCall#9e727aad call:GroupCall participants:Vector<GroupCallParticipant> participants_next_offset:string chats:Vector<Chat> users:Vector<User> = phone.GroupCall;
-
-phone.groupParticipants#f47751b6 count:int participants:Vector<GroupCallParticipant> next_offset:string chats:Vector<Chat> users:Vector<User> version:int = phone.GroupParticipants;
-
-inlineQueryPeerTypeSameBotPM#3081ed9d = InlineQueryPeerType;
-inlineQueryPeerTypePM#833c0fac = InlineQueryPeerType;
-inlineQueryPeerTypeChat#d766c50a = InlineQueryPeerType;
-inlineQueryPeerTypeMegagroup#5ec4be43 = InlineQueryPeerType;
-inlineQueryPeerTypeBroadcast#6334ee9a = InlineQueryPeerType;
-inlineQueryPeerTypeBotPM#e3b2d0c = InlineQueryPeerType;
-
-messages.historyImport#1662af0b id:long = messages.HistoryImport;
-
-messages.historyImportParsed#5e0fb7b9 flags:# pm:flags.0?true group:flags.1?true title:flags.2?string = messages.HistoryImportParsed;
-
-messages.affectedFoundMessages#ef8d3e6c pts:int pts_count:int offset:int messages:Vector<int> = messages.AffectedFoundMessages;
-
-chatInviteImporter#8c5adfd9 flags:# requested:flags.0?true via_chatlist:flags.3?true user_id:long date:int about:flags.2?string approved_by:flags.1?long = ChatInviteImporter;
-
-messages.exportedChatInvites#bdc62dcc count:int invites:Vector<ExportedChatInvite> users:Vector<User> = messages.ExportedChatInvites;
-
-messages.exportedChatInvite#1871be50 invite:ExportedChatInvite users:Vector<User> = messages.ExportedChatInvite;
-messages.exportedChatInviteReplaced#222600ef invite:ExportedChatInvite new_invite:ExportedChatInvite users:Vector<User> = messages.ExportedChatInvite;
-
-messages.chatInviteImporters#81b6b00a count:int importers:Vector<ChatInviteImporter> users:Vector<User> = messages.ChatInviteImporters;
-
-chatAdminWithInvites#f2ecef23 admin_id:long invites_count:int revoked_invites_count:int = ChatAdminWithInvites;
-
-messages.chatAdminsWithInvites#b69b72d7 admins:Vector<ChatAdminWithInvites> users:Vector<User> = messages.ChatAdminsWithInvites;
-
-messages.checkedHistoryImportPeer#a24de717 confirm_text:string = messages.CheckedHistoryImportPeer;
-
-phone.joinAsPeers#afe5623f peers:Vector<Peer> chats:Vector<Chat> users:Vector<User> = phone.JoinAsPeers;
-
-phone.exportedGroupCallInvite#204bd158 link:string = phone.ExportedGroupCallInvite;
-
-groupCallParticipantVideoSourceGroup#dcb118b7 semantics:string sources:Vector<int> = GroupCallParticipantVideoSourceGroup;
-
-groupCallParticipantVideo#67753ac8 flags:# paused:flags.0?true endpoint:string source_groups:Vector<GroupCallParticipantVideoSourceGroup> audio_source:flags.1?int = GroupCallParticipantVideo;
-
-stickers.suggestedShortName#85fea03f short_name:string = stickers.SuggestedShortName;
-
-botCommandScopeDefault#2f6cb2ab = BotCommandScope;
-botCommandScopeUsers#3c4f04d8 = BotCommandScope;
-botCommandScopeChats#6fe1a881 = BotCommandScope;
-botCommandScopeChatAdmins#b9aa606a = BotCommandScope;
-botCommandScopePeer#db9d897d peer:InputPeer = BotCommandScope;
-botCommandScopePeerAdmins#3fd863d1 peer:InputPeer = BotCommandScope;
-botCommandScopePeerUser#a1321f3 peer:InputPeer user_id:InputUser = BotCommandScope;
-
-account.resetPasswordFailedWait#e3779861 retry_date:int = account.ResetPasswordResult;
-account.resetPasswordRequestedWait#e9effc7d until_date:int = account.ResetPasswordResult;
-account.resetPasswordOk#e926d63e = account.ResetPasswordResult;
-
-sponsoredMessage#4d93a990 flags:# recommended:flags.5?true can_report:flags.12?true random_id:bytes url:string title:string message:string entities:flags.1?Vector<MessageEntity> photo:flags.6?Photo media:flags.14?MessageMedia color:flags.13?PeerColor button_text:string sponsor_info:flags.7?string additional_info:flags.8?string = SponsoredMessage;
-
-messages.sponsoredMessages#c9ee1d87 flags:# posts_between:flags.0?int messages:Vector<SponsoredMessage> chats:Vector<Chat> users:Vector<User> = messages.SponsoredMessages;
-messages.sponsoredMessagesEmpty#1839490f = messages.SponsoredMessages;
-
-searchResultsCalendarPeriod#c9b0539f date:int min_msg_id:int max_msg_id:int count:int = SearchResultsCalendarPeriod;
-
-messages.searchResultsCalendar#147ee23c flags:# inexact:flags.0?true count:int min_date:int min_msg_id:int offset_id_offset:flags.1?int periods:Vector<SearchResultsCalendarPeriod> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.SearchResultsCalendar;
-
-searchResultPosition#7f648b67 msg_id:int date:int offset:int = SearchResultsPosition;
-
-messages.searchResultsPositions#53b22baf count:int positions:Vector<SearchResultsPosition> = messages.SearchResultsPositions;
-
-channels.sendAsPeers#f496b0c6 peers:Vector<SendAsPeer> chats:Vector<Chat> users:Vector<User> = channels.SendAsPeers;
-
-users.userFull#3b6d152e full_user:UserFull chats:Vector<Chat> users:Vector<User> = users.UserFull;
-
-messages.peerSettings#6880b94d settings:PeerSettings chats:Vector<Chat> users:Vector<User> = messages.PeerSettings;
-
-auth.loggedOut#c3a2835f flags:# future_auth_token:flags.0?bytes = auth.LoggedOut;
-
-reactionCount#a3d1cb80 flags:# chosen_order:flags.0?int reaction:Reaction count:int = ReactionCount;
-
-messageReactions#a339f0b flags:# min:flags.0?true can_see_list:flags.2?true reactions_as_tags:flags.3?true results:Vector<ReactionCount> recent_reactions:flags.1?Vector<MessagePeerReaction> top_reactors:flags.4?Vector<MessageReactor> = MessageReactions;
-
-messages.messageReactionsList#31bd492d flags:# count:int reactions:Vector<MessagePeerReaction> chats:Vector<Chat> users:Vector<User> next_offset:flags.0?string = messages.MessageReactionsList;
-
-availableReaction#c077ec01 flags:# inactive:flags.0?true premium:flags.2?true reaction:string title:string static_icon:Document appear_animation:Document select_animation:Document activate_animation:Document effect_animation:Document around_animation:flags.1?Document center_icon:flags.1?Document = AvailableReaction;
-
-messages.availableReactionsNotModified#9f071957 = messages.AvailableReactions;
-messages.availableReactions#768e3aad hash:int reactions:Vector<AvailableReaction> = messages.AvailableReactions;
-
-messagePeerReaction#8c79b63c flags:# big:flags.0?true unread:flags.1?true my:flags.2?true peer_id:Peer date:int reaction:Reaction = MessagePeerReaction;
-
-groupCallStreamChannel#80eb48af channel:int scale:int last_timestamp_ms:long = GroupCallStreamChannel;
-
-phone.groupCallStreamChannels#d0e482b2 channels:Vector<GroupCallStreamChannel> = phone.GroupCallStreamChannels;
-
-phone.groupCallStreamRtmpUrl#2dbf3432 url:string key:string = phone.GroupCallStreamRtmpUrl;
-
-attachMenuBotIconColor#4576f3f0 name:string color:int = AttachMenuBotIconColor;
-
-attachMenuBotIcon#b2a7386b flags:# name:string icon:Document colors:flags.0?Vector<AttachMenuBotIconColor> = AttachMenuBotIcon;
-
-attachMenuBot#d90d8dfe flags:# inactive:flags.0?true has_settings:flags.1?true request_write_access:flags.2?true show_in_attach_menu:flags.3?true show_in_side_menu:flags.4?true side_menu_disclaimer_needed:flags.5?true bot_id:long short_name:string peer_types:flags.3?Vector<AttachMenuPeerType> icons:Vector<AttachMenuBotIcon> = AttachMenuBot;
-
-attachMenuBotsNotModified#f1d88a5c = AttachMenuBots;
-attachMenuBots#3c4301c0 hash:long bots:Vector<AttachMenuBot> users:Vector<User> = AttachMenuBots;
-
-attachMenuBotsBot#93bf667f bot:AttachMenuBot users:Vector<User> = AttachMenuBotsBot;
-
-webViewResultUrl#4d22ff98 flags:# fullsize:flags.1?true fullscreen:flags.2?true query_id:flags.0?long url:string = WebViewResult;
-
-webViewMessageSent#c94511c flags:# msg_id:flags.0?InputBotInlineMessageID = WebViewMessageSent;
-
-botMenuButtonDefault#7533a588 = BotMenuButton;
-botMenuButtonCommands#4258c205 = BotMenuButton;
-botMenuButton#c7b57ce6 text:string url:string = BotMenuButton;
-
-account.savedRingtonesNotModified#fbf6e8b1 = account.SavedRingtones;
-account.savedRingtones#c1e92cc5 hash:long ringtones:Vector<Document> = account.SavedRingtones;
-
-notificationSoundDefault#97e8bebe = NotificationSound;
-notificationSoundNone#6f0c34df = NotificationSound;
-notificationSoundLocal#830b9ae4 title:string data:string = NotificationSound;
-notificationSoundRingtone#ff6c8049 id:long = NotificationSound;
-
-account.savedRingtone#b7263f6d = account.SavedRingtone;
-account.savedRingtoneConverted#1f307eb7 document:Document = account.SavedRingtone;
-
-attachMenuPeerTypeSameBotPM#7d6be90e = AttachMenuPeerType;
-attachMenuPeerTypeBotPM#c32bfa1a = AttachMenuPeerType;
-attachMenuPeerTypePM#f146d31f = AttachMenuPeerType;
-attachMenuPeerTypeChat#509113f = AttachMenuPeerType;
-attachMenuPeerTypeBroadcast#7bfbdefc = AttachMenuPeerType;
-
-inputInvoiceMessage#c5b56859 peer:InputPeer msg_id:int = InputInvoice;
-inputInvoiceSlug#c326caef slug:string = InputInvoice;
-inputInvoicePremiumGiftCode#98986c0d purpose:InputStorePaymentPurpose option:PremiumGiftCodeOption = InputInvoice;
-inputInvoiceStars#65f00ce3 purpose:InputStorePaymentPurpose = InputInvoice;
-inputInvoiceChatInviteSubscription#34e793f1 hash:string = InputInvoice;
-inputInvoiceStarGift#e8625e92 flags:# hide_name:flags.0?true include_upgrade:flags.2?true peer:InputPeer gift_id:long message:flags.1?TextWithEntities = InputInvoice;
-inputInvoiceStarGiftUpgrade#4d818d5d flags:# keep_original_details:flags.0?true stargift:InputSavedStarGift = InputInvoice;
-inputInvoiceStarGiftTransfer#4a5f5bd9 stargift:InputSavedStarGift to_id:InputPeer = InputInvoice;
-inputInvoicePremiumGiftStars#dabab2ef flags:# user_id:InputUser months:int message:flags.0?TextWithEntities = InputInvoice;
-inputInvoiceBusinessBotTransferStars#f4997e42 bot:InputUser stars:long = InputInvoice;
-
-payments.exportedInvoice#aed0cbd9 url:string = payments.ExportedInvoice;
-
-messages.transcribedAudio#cfb9d957 flags:# pending:flags.0?true transcription_id:long text:string trial_remains_num:flags.1?int trial_remains_until_date:flags.1?int = messages.TranscribedAudio;
-
-help.premiumPromo#5334759c status_text:string status_entities:Vector<MessageEntity> video_sections:Vector<string> videos:Vector<Document> period_options:Vector<PremiumSubscriptionOption> users:Vector<User> = help.PremiumPromo;
-
-inputStorePaymentPremiumSubscription#a6751e66 flags:# restore:flags.0?true upgrade:flags.1?true = InputStorePaymentPurpose;
-inputStorePaymentGiftPremium#616f7fe8 user_id:InputUser currency:string amount:long = InputStorePaymentPurpose;
-inputStorePaymentPremiumGiftCode#fb790393 flags:# users:Vector<InputUser> boost_peer:flags.0?InputPeer currency:string amount:long message:flags.1?TextWithEntities = InputStorePaymentPurpose;
-inputStorePaymentPremiumGiveaway#160544ca flags:# only_new_subscribers:flags.0?true winners_are_visible:flags.3?true boost_peer:InputPeer additional_peers:flags.1?Vector<InputPeer> countries_iso2:flags.2?Vector<string> prize_description:flags.4?string random_id:long until_date:int currency:string amount:long = InputStorePaymentPurpose;
-inputStorePaymentStarsTopup#dddd0f56 stars:long currency:string amount:long = InputStorePaymentPurpose;
-inputStorePaymentStarsGift#1d741ef7 user_id:InputUser stars:long currency:string amount:long = InputStorePaymentPurpose;
-inputStorePaymentStarsGiveaway#751f08fa flags:# only_new_subscribers:flags.0?true winners_are_visible:flags.3?true stars:long boost_peer:InputPeer additional_peers:flags.1?Vector<InputPeer> countries_iso2:flags.2?Vector<string> prize_description:flags.4?string random_id:long until_date:int currency:string amount:long users:int = InputStorePaymentPurpose;
-inputStorePaymentAuthCode#9bb2636d flags:# restore:flags.0?true phone_number:string phone_code_hash:string currency:string amount:long = InputStorePaymentPurpose;
-
-paymentFormMethod#88f8f21b url:string title:string = PaymentFormMethod;
-
-emojiStatusEmpty#2de11aae = EmojiStatus;
-emojiStatus#e7ff068a flags:# document_id:long until:flags.0?int = EmojiStatus;
-emojiStatusCollectible#7184603b flags:# collectible_id:long document_id:long title:string slug:string pattern_document_id:long center_color:int edge_color:int pattern_color:int text_color:int until:flags.0?int = EmojiStatus;
-inputEmojiStatusCollectible#7141dbf flags:# collectible_id:long until:flags.0?int = EmojiStatus;
-
-account.emojiStatusesNotModified#d08ce645 = account.EmojiStatuses;
-account.emojiStatuses#90c467d1 hash:long statuses:Vector<EmojiStatus> = account.EmojiStatuses;
-
-reactionEmpty#79f5d419 = Reaction;
-reactionEmoji#1b2286b8 emoticon:string = Reaction;
-reactionCustomEmoji#8935fc73 document_id:long = Reaction;
-reactionPaid#523da4eb = Reaction;
-
-chatReactionsNone#eafc32bc = ChatReactions;
-chatReactionsAll#52928bca flags:# allow_custom:flags.0?true = ChatReactions;
-chatReactionsSome#661d4037 reactions:Vector<Reaction> = ChatReactions;
-
-messages.reactionsNotModified#b06fdbdf = messages.Reactions;
-messages.reactions#eafdf716 hash:long reactions:Vector<Reaction> = messages.Reactions;
-
-emailVerifyPurposeLoginSetup#4345be73 phone_number:string phone_code_hash:string = EmailVerifyPurpose;
-emailVerifyPurposeLoginChange#527d22eb = EmailVerifyPurpose;
-emailVerifyPurposePassport#bbf51685 = EmailVerifyPurpose;
-
-emailVerificationCode#922e55a9 code:string = EmailVerification;
-emailVerificationGoogle#db909ec2 token:string = EmailVerification;
-emailVerificationApple#96d074fd token:string = EmailVerification;
-
-account.emailVerified#2b96cd1b email:string = account.EmailVerified;
-account.emailVerifiedLogin#e1bb0d61 email:string sent_code:auth.SentCode = account.EmailVerified;
-
-premiumSubscriptionOption#5f2d1df2 flags:# current:flags.1?true can_purchase_upgrade:flags.2?true transaction:flags.3?string months:int currency:string amount:long bot_url:string store_product:flags.0?string = PremiumSubscriptionOption;
-
-sendAsPeer#b81c7034 flags:# premium_required:flags.0?true peer:Peer = SendAsPeer;
-
-messageExtendedMediaPreview#ad628cc8 flags:# w:flags.0?int h:flags.0?int thumb:flags.1?PhotoSize video_duration:flags.2?int = MessageExtendedMedia;
-messageExtendedMedia#ee479c64 media:MessageMedia = MessageExtendedMedia;
-
-stickerKeyword#fcfeb29c document_id:long keyword:Vector<string> = StickerKeyword;
-
-username#b4073647 flags:# editable:flags.0?true active:flags.1?true username:string = Username;
-
-forumTopicDeleted#23f109b id:int = ForumTopic;
-forumTopic#71701da9 flags:# my:flags.1?true closed:flags.2?true pinned:flags.3?true short:flags.5?true hidden:flags.6?true id:int date:int title:string icon_color:int icon_emoji_id:flags.0?long top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int from_id:Peer notify_settings:PeerNotifySettings draft:flags.4?DraftMessage = ForumTopic;
-
-messages.forumTopics#367617d3 flags:# order_by_create_date:flags.0?true count:int topics:Vector<ForumTopic> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> pts:int = messages.ForumTopics;
-
-defaultHistoryTTL#43b46b20 period:int = DefaultHistoryTTL;
-
-exportedContactToken#41bf109b url:string expires:int = ExportedContactToken;
-
-requestPeerTypeUser#5f3b8a00 flags:# bot:flags.0?Bool premium:flags.1?Bool = RequestPeerType;
-requestPeerTypeChat#c9f06e1b flags:# creator:flags.0?true bot_participant:flags.5?true has_username:flags.3?Bool forum:flags.4?Bool user_admin_rights:flags.1?ChatAdminRights bot_admin_rights:flags.2?ChatAdminRights = RequestPeerType;
-requestPeerTypeBroadcast#339bef6c flags:# creator:flags.0?true has_username:flags.3?Bool user_admin_rights:flags.1?ChatAdminRights bot_admin_rights:flags.2?ChatAdminRights = RequestPeerType;
-
-emojiListNotModified#481eadfa = EmojiList;
-emojiList#7a1e11d1 hash:long document_id:Vector<long> = EmojiList;
-
-emojiGroup#7a9abda9 title:string icon_emoji_id:long emoticons:Vector<string> = EmojiGroup;
-emojiGroupGreeting#80d26cc7 title:string icon_emoji_id:long emoticons:Vector<string> = EmojiGroup;
-emojiGroupPremium#93bcf34 title:string icon_emoji_id:long = EmojiGroup;
-
-messages.emojiGroupsNotModified#6fb4ad87 = messages.EmojiGroups;
-messages.emojiGroups#881fb94b hash:int groups:Vector<EmojiGroup> = messages.EmojiGroups;
-
-textWithEntities#751f3146 text:string entities:Vector<MessageEntity> = TextWithEntities;
-
-messages.translateResult#33db32f8 result:Vector<TextWithEntities> = messages.TranslatedText;
-
-autoSaveSettings#c84834ce flags:# photos:flags.0?true videos:flags.1?true video_max_size:flags.2?long = AutoSaveSettings;
-
-autoSaveException#81602d47 peer:Peer settings:AutoSaveSettings = AutoSaveException;
-
-account.autoSaveSettings#4c3e069d users_settings:AutoSaveSettings chats_settings:AutoSaveSettings broadcasts_settings:AutoSaveSettings exceptions:Vector<AutoSaveException> chats:Vector<Chat> users:Vector<User> = account.AutoSaveSettings;
-
-help.appConfigNotModified#7cde641d = help.AppConfig;
-help.appConfig#dd18782e hash:int config:JSONValue = help.AppConfig;
-
-inputBotAppID#a920bd7a id:long access_hash:long = InputBotApp;
-inputBotAppShortName#908c0407 bot_id:InputUser short_name:string = InputBotApp;
-
-botAppNotModified#5da674b7 = BotApp;
-botApp#95fcd1d6 flags:# id:long access_hash:long short_name:string title:string description:string photo:Photo document:flags.0?Document hash:long = BotApp;
-
-messages.botApp#eb50adf5 flags:# inactive:flags.0?true request_write_access:flags.1?true has_settings:flags.2?true app:BotApp = messages.BotApp;
-
-inlineBotWebView#b57295d5 text:string url:string = InlineBotWebView;
-
-readParticipantDate#4a4ff172 user_id:long date:int = ReadParticipantDate;
-
-inputChatlistDialogFilter#f3e0da33 filter_id:int = InputChatlist;
-
-exportedChatlistInvite#c5181ac flags:# title:string url:string peers:Vector<Peer> = ExportedChatlistInvite;
-
-chatlists.exportedChatlistInvite#10e6e3a6 filter:DialogFilter invite:ExportedChatlistInvite = chatlists.ExportedChatlistInvite;
-
-chatlists.exportedInvites#10ab6dc7 invites:Vector<ExportedChatlistInvite> chats:Vector<Chat> users:Vector<User> = chatlists.ExportedInvites;
-
-chatlists.chatlistInviteAlready#fa87f659 filter_id:int missing_peers:Vector<Peer> already_peers:Vector<Peer> chats:Vector<Chat> users:Vector<User> = chatlists.ChatlistInvite;
-chatlists.chatlistInvite#f10ece2f flags:# title_noanimate:flags.1?true title:TextWithEntities emoticon:flags.0?string peers:Vector<Peer> chats:Vector<Chat> users:Vector<User> = chatlists.ChatlistInvite;
-
-chatlists.chatlistUpdates#93bd878d missing_peers:Vector<Peer> chats:Vector<Chat> users:Vector<User> = chatlists.ChatlistUpdates;
-
-bots.botInfo#e8a775b0 name:string about:string description:string = bots.BotInfo;
-
-messagePeerVote#b6cc2d5c peer:Peer option:bytes date:int = MessagePeerVote;
-messagePeerVoteInputOption#74cda504 peer:Peer date:int = MessagePeerVote;
-messagePeerVoteMultiple#4628f6e6 peer:Peer options:Vector<bytes> date:int = MessagePeerVote;
-
-storyViews#8d595cd6 flags:# has_viewers:flags.1?true views_count:int forwards_count:flags.2?int reactions:flags.3?Vector<ReactionCount> reactions_count:flags.4?int recent_viewers:flags.0?Vector<long> = StoryViews;
-
-storyItemDeleted#51e6ee4f id:int = StoryItem;
-storyItemSkipped#ffadc913 flags:# close_friends:flags.8?true id:int date:int expire_date:int = StoryItem;
-storyItem#79b26a24 flags:# pinned:flags.5?true public:flags.7?true close_friends:flags.8?true min:flags.9?true noforwards:flags.10?true edited:flags.11?true contacts:flags.12?true selected_contacts:flags.13?true out:flags.16?true id:int date:int from_id:flags.18?Peer fwd_from:flags.17?StoryFwdHeader expire_date:int caption:flags.0?string entities:flags.1?Vector<MessageEntity> media:MessageMedia media_areas:flags.14?Vector<MediaArea> privacy:flags.2?Vector<PrivacyRule> views:flags.3?StoryViews sent_reaction:flags.15?Reaction = StoryItem;
-
-stories.allStoriesNotModified#1158fe3e flags:# state:string stealth_mode:StoriesStealthMode = stories.AllStories;
-stories.allStories#6efc5e81 flags:# has_more:flags.0?true count:int state:string peer_stories:Vector<PeerStories> chats:Vector<Chat> users:Vector<User> stealth_mode:StoriesStealthMode = stories.AllStories;
-
-stories.stories#63c3dd0a flags:# count:int stories:Vector<StoryItem> pinned_to_top:flags.0?Vector<int> chats:Vector<Chat> users:Vector<User> = stories.Stories;
-
-storyView#b0bdeac5 flags:# blocked:flags.0?true blocked_my_stories_from:flags.1?true user_id:long date:int reaction:flags.2?Reaction = StoryView;
-storyViewPublicForward#9083670b flags:# blocked:flags.0?true blocked_my_stories_from:flags.1?true message:Message = StoryView;
-storyViewPublicRepost#bd74cf49 flags:# blocked:flags.0?true blocked_my_stories_from:flags.1?true peer_id:Peer story:StoryItem = StoryView;
-
-stories.storyViewsList#59d78fc5 flags:# count:int views_count:int forwards_count:int reactions_count:int views:Vector<StoryView> chats:Vector<Chat> users:Vector<User> next_offset:flags.0?string = stories.StoryViewsList;
-
-stories.storyViews#de9eed1d views:Vector<StoryViews> users:Vector<User> = stories.StoryViews;
-
-inputReplyToMessage#22c0f6d5 flags:# reply_to_msg_id:int top_msg_id:flags.0?int reply_to_peer_id:flags.1?InputPeer quote_text:flags.2?string quote_entities:flags.3?Vector<MessageEntity> quote_offset:flags.4?int = InputReplyTo;
-inputReplyToStory#5881323a peer:InputPeer story_id:int = InputReplyTo;
-
-exportedStoryLink#3fc9053b link:string = ExportedStoryLink;
-
-storiesStealthMode#712e27fd flags:# active_until_date:flags.0?int cooldown_until_date:flags.1?int = StoriesStealthMode;
-
-mediaAreaCoordinates#cfc9e002 flags:# x:double y:double w:double h:double rotation:double radius:flags.0?double = MediaAreaCoordinates;
-
-mediaAreaVenue#be82db9c coordinates:MediaAreaCoordinates geo:GeoPoint title:string address:string provider:string venue_id:string venue_type:string = MediaArea;
-inputMediaAreaVenue#b282217f coordinates:MediaAreaCoordinates query_id:long result_id:string = MediaArea;
-mediaAreaGeoPoint#cad5452d flags:# coordinates:MediaAreaCoordinates geo:GeoPoint address:flags.0?GeoPointAddress = MediaArea;
-mediaAreaSuggestedReaction#14455871 flags:# dark:flags.0?true flipped:flags.1?true coordinates:MediaAreaCoordinates reaction:Reaction = MediaArea;
-mediaAreaChannelPost#770416af coordinates:MediaAreaCoordinates channel_id:long msg_id:int = MediaArea;
-inputMediaAreaChannelPost#2271f2bf coordinates:MediaAreaCoordinates channel:InputChannel msg_id:int = MediaArea;
-mediaAreaUrl#37381085 coordinates:MediaAreaCoordinates url:string = MediaArea;
-mediaAreaWeather#49a6549c coordinates:MediaAreaCoordinates emoji:string temperature_c:double color:int = MediaArea;
-mediaAreaStarGift#5787686d coordinates:MediaAreaCoordinates slug:string = MediaArea;
-
-peerStories#9a35e999 flags:# peer:Peer max_read_id:flags.0?int stories:Vector<StoryItem> = PeerStories;
-
-stories.peerStories#cae68768 stories:PeerStories chats:Vector<Chat> users:Vector<User> = stories.PeerStories;
-
-messages.webPage#fd5e12bd webpage:WebPage chats:Vector<Chat> users:Vector<User> = messages.WebPage;
-
-premiumGiftCodeOption#257e962b flags:# users:int months:int store_product:flags.0?string store_quantity:flags.1?int currency:string amount:long = PremiumGiftCodeOption;
-
-payments.checkedGiftCode#284a1096 flags:# via_giveaway:flags.2?true from_id:flags.4?Peer giveaway_msg_id:flags.3?int to_id:flags.0?long date:int months:int used_date:flags.1?int chats:Vector<Chat> users:Vector<User> = payments.CheckedGiftCode;
-
-payments.giveawayInfo#4367daa0 flags:# participating:flags.0?true preparing_results:flags.3?true start_date:int joined_too_early_date:flags.1?int admin_disallowed_chat_id:flags.2?long disallowed_country:flags.4?string = payments.GiveawayInfo;
-payments.giveawayInfoResults#e175e66f flags:# winner:flags.0?true refunded:flags.1?true start_date:int gift_code_slug:flags.3?string stars_prize:flags.4?long finish_date:int winners_count:int activated_count:flags.2?int = payments.GiveawayInfo;
-
-prepaidGiveaway#b2539d54 id:long months:int quantity:int date:int = PrepaidGiveaway;
-prepaidStarsGiveaway#9a9d77e0 id:long stars:long quantity:int boosts:int date:int = PrepaidGiveaway;
-
-boost#4b3e14d6 flags:# gift:flags.1?true giveaway:flags.2?true unclaimed:flags.3?true id:string user_id:flags.0?long giveaway_msg_id:flags.2?int date:int expires:int used_gift_slug:flags.4?string multiplier:flags.5?int stars:flags.6?long = Boost;
-
-premium.boostsList#86f8613c flags:# count:int boosts:Vector<Boost> next_offset:flags.0?string users:Vector<User> = premium.BoostsList;
-
-myBoost#c448415c flags:# slot:int peer:flags.0?Peer date:int expires:int cooldown_until_date:flags.1?int = MyBoost;
-
-premium.myBoosts#9ae228e2 my_boosts:Vector<MyBoost> chats:Vector<Chat> users:Vector<User> = premium.MyBoosts;
-
-premium.boostsStatus#4959427a flags:# my_boost:flags.2?true level:int current_level_boosts:int boosts:int gift_boosts:flags.4?int next_level_boosts:flags.0?int premium_audience:flags.1?StatsPercentValue boost_url:string prepaid_giveaways:flags.3?Vector<PrepaidGiveaway> my_boost_slots:flags.2?Vector<int> = premium.BoostsStatus;
-
-storyFwdHeader#b826e150 flags:# modified:flags.3?true from:flags.0?Peer from_name:flags.1?string story_id:flags.2?int = StoryFwdHeader;
-
-postInteractionCountersMessage#e7058e7f msg_id:int views:int forwards:int reactions:int = PostInteractionCounters;
-postInteractionCountersStory#8a480e27 story_id:int views:int forwards:int reactions:int = PostInteractionCounters;
-
-stats.storyStats#50cd067c views_graph:StatsGraph reactions_by_emotion_graph:StatsGraph = stats.StoryStats;
-
-publicForwardMessage#1f2bf4a message:Message = PublicForward;
-publicForwardStory#edf3add0 peer:Peer story:StoryItem = PublicForward;
-
-stats.publicForwards#93037e20 flags:# count:int forwards:Vector<PublicForward> next_offset:flags.0?string chats:Vector<Chat> users:Vector<User> = stats.PublicForwards;
-
-peerColor#b54b5acf flags:# color:flags.0?int background_emoji_id:flags.1?long = PeerColor;
-
-help.peerColorSet#26219a58 colors:Vector<int> = help.PeerColorSet;
-help.peerColorProfileSet#767d61eb palette_colors:Vector<int> bg_colors:Vector<int> story_colors:Vector<int> = help.PeerColorSet;
-
-help.peerColorOption#adec6ebe flags:# hidden:flags.0?true color_id:int colors:flags.1?help.PeerColorSet dark_colors:flags.2?help.PeerColorSet channel_min_level:flags.3?int group_min_level:flags.4?int = help.PeerColorOption;
-
-help.peerColorsNotModified#2ba1f5ce = help.PeerColors;
-help.peerColors#f8ed08 hash:int colors:Vector<help.PeerColorOption> = help.PeerColors;
-
-storyReaction#6090d6d5 peer_id:Peer date:int reaction:Reaction = StoryReaction;
-storyReactionPublicForward#bbab2643 message:Message = StoryReaction;
-storyReactionPublicRepost#cfcd0f13 peer_id:Peer story:StoryItem = StoryReaction;
-
-stories.storyReactionsList#aa5f789c flags:# count:int reactions:Vector<StoryReaction> chats:Vector<Chat> users:Vector<User> next_offset:flags.0?string = stories.StoryReactionsList;
-
-savedDialog#bd87cb6c flags:# pinned:flags.2?true peer:Peer top_message:int = SavedDialog;
-
-messages.savedDialogs#f83ae221 dialogs:Vector<SavedDialog> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.SavedDialogs;
-messages.savedDialogsSlice#44ba9dd9 count:int dialogs:Vector<SavedDialog> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.SavedDialogs;
-messages.savedDialogsNotModified#c01f6fe8 count:int = messages.SavedDialogs;
-
-savedReactionTag#cb6ff828 flags:# reaction:Reaction title:flags.0?string count:int = SavedReactionTag;
-
-messages.savedReactionTagsNotModified#889b59ef = messages.SavedReactionTags;
-messages.savedReactionTags#3259950a tags:Vector<SavedReactionTag> hash:long = messages.SavedReactionTags;
-
-outboxReadDate#3bb842ac date:int = OutboxReadDate;
-
-smsjobs.eligibleToJoin#dc8b44cf terms_url:string monthly_sent_sms:int = smsjobs.EligibilityToJoin;
-
-smsjobs.status#2aee9191 flags:# allow_international:flags.0?true recent_sent:int recent_since:int recent_remains:int total_sent:int total_since:int last_gift_slug:flags.1?string terms_url:string = smsjobs.Status;
-
-smsJob#e6a1eeb8 job_id:string phone_number:string text:string = SmsJob;
-
-businessWeeklyOpen#120b1ab9 start_minute:int end_minute:int = BusinessWeeklyOpen;
-
-businessWorkHours#8c92b098 flags:# open_now:flags.0?true timezone_id:string weekly_open:Vector<BusinessWeeklyOpen> = BusinessWorkHours;
-
-businessLocation#ac5c1af7 flags:# geo_point:flags.0?GeoPoint address:string = BusinessLocation;
-
-inputBusinessRecipients#6f8b32aa flags:# existing_chats:flags.0?true new_chats:flags.1?true contacts:flags.2?true non_contacts:flags.3?true exclude_selected:flags.5?true users:flags.4?Vector<InputUser> = InputBusinessRecipients;
-
-businessRecipients#21108ff7 flags:# existing_chats:flags.0?true new_chats:flags.1?true contacts:flags.2?true non_contacts:flags.3?true exclude_selected:flags.5?true users:flags.4?Vector<long> = BusinessRecipients;
-
-businessAwayMessageScheduleAlways#c9b9e2b9 = BusinessAwayMessageSchedule;
-businessAwayMessageScheduleOutsideWorkHours#c3f2f501 = BusinessAwayMessageSchedule;
-businessAwayMessageScheduleCustom#cc4d9ecc start_date:int end_date:int = BusinessAwayMessageSchedule;
-
-inputBusinessGreetingMessage#194cb3b shortcut_id:int recipients:InputBusinessRecipients no_activity_days:int = InputBusinessGreetingMessage;
-
-businessGreetingMessage#e519abab shortcut_id:int recipients:BusinessRecipients no_activity_days:int = BusinessGreetingMessage;
-
-inputBusinessAwayMessage#832175e0 flags:# offline_only:flags.0?true shortcut_id:int schedule:BusinessAwayMessageSchedule recipients:InputBusinessRecipients = InputBusinessAwayMessage;
-
-businessAwayMessage#ef156a5c flags:# offline_only:flags.0?true shortcut_id:int schedule:BusinessAwayMessageSchedule recipients:BusinessRecipients = BusinessAwayMessage;
-
-timezone#ff9289f5 id:string name:string utc_offset:int = Timezone;
-
-help.timezonesListNotModified#970708cc = help.TimezonesList;
-help.timezonesList#7b74ed71 timezones:Vector<Timezone> hash:int = help.TimezonesList;
-
-quickReply#697102b shortcut_id:int shortcut:string top_message:int count:int = QuickReply;
-
-inputQuickReplyShortcut#24596d41 shortcut:string = InputQuickReplyShortcut;
-inputQuickReplyShortcutId#1190cf1 shortcut_id:int = InputQuickReplyShortcut;
-
-messages.quickReplies#c68d6695 quick_replies:Vector<QuickReply> messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = messages.QuickReplies;
-messages.quickRepliesNotModified#5f91eb5b = messages.QuickReplies;
-
-connectedBot#cd64636c flags:# bot_id:long recipients:BusinessBotRecipients rights:BusinessBotRights = ConnectedBot;
-
-account.connectedBots#17d7f87b connected_bots:Vector<ConnectedBot> users:Vector<User> = account.ConnectedBots;
-
-messages.dialogFilters#2ad93719 flags:# tags_enabled:flags.0?true filters:Vector<DialogFilter> = messages.DialogFilters;
-
-birthday#6c8e1e06 flags:# day:int month:int year:flags.0?int = Birthday;
-
-botBusinessConnection#8f34b2f5 flags:# disabled:flags.1?true connection_id:string user_id:long dc_id:int date:int rights:flags.2?BusinessBotRights = BotBusinessConnection;
-
-inputBusinessIntro#9c469cd flags:# title:string description:string sticker:flags.0?InputDocument = InputBusinessIntro;
-
-businessIntro#5a0a066d flags:# title:string description:string sticker:flags.0?Document = BusinessIntro;
-
-messages.myStickers#faff629d count:int sets:Vector<StickerSetCovered> = messages.MyStickers;
-
-inputCollectibleUsername#e39460a9 username:string = InputCollectible;
-inputCollectiblePhone#a2e214a4 phone:string = InputCollectible;
-
-fragment.collectibleInfo#6ebdff91 purchase_date:int currency:string amount:long crypto_currency:string crypto_amount:long url:string = fragment.CollectibleInfo;
-
-inputBusinessBotRecipients#c4e5921e flags:# existing_chats:flags.0?true new_chats:flags.1?true contacts:flags.2?true non_contacts:flags.3?true exclude_selected:flags.5?true users:flags.4?Vector<InputUser> exclude_users:flags.6?Vector<InputUser> = InputBusinessBotRecipients;
-
-businessBotRecipients#b88cf373 flags:# existing_chats:flags.0?true new_chats:flags.1?true contacts:flags.2?true non_contacts:flags.3?true exclude_selected:flags.5?true users:flags.4?Vector<long> exclude_users:flags.6?Vector<long> = BusinessBotRecipients;
-
-contactBirthday#1d998733 contact_id:long birthday:Birthday = ContactBirthday;
-
-contacts.contactBirthdays#114ff30d contacts:Vector<ContactBirthday> users:Vector<User> = contacts.ContactBirthdays;
-
-missingInvitee#628c9224 flags:# premium_would_allow_invite:flags.0?true premium_required_for_pm:flags.1?true user_id:long = MissingInvitee;
-
-messages.invitedUsers#7f5defa6 updates:Updates missing_invitees:Vector<MissingInvitee> = messages.InvitedUsers;
-
-inputBusinessChatLink#11679fa7 flags:# message:string entities:flags.0?Vector<MessageEntity> title:flags.1?string = InputBusinessChatLink;
-
-businessChatLink#b4ae666f flags:# link:string message:string entities:flags.0?Vector<MessageEntity> title:flags.1?string views:int = BusinessChatLink;
-
-account.businessChatLinks#ec43a2d1 links:Vector<BusinessChatLink> chats:Vector<Chat> users:Vector<User> = account.BusinessChatLinks;
-
-account.resolvedBusinessChatLinks#9a23af21 flags:# peer:Peer message:string entities:flags.0?Vector<MessageEntity> chats:Vector<Chat> users:Vector<User> = account.ResolvedBusinessChatLinks;
-
-requestedPeerUser#d62ff46a flags:# user_id:long first_name:flags.0?string last_name:flags.0?string username:flags.1?string photo:flags.2?Photo = RequestedPeer;
-requestedPeerChat#7307544f flags:# chat_id:long title:flags.0?string photo:flags.2?Photo = RequestedPeer;
-requestedPeerChannel#8ba403e4 flags:# channel_id:long title:flags.0?string username:flags.1?string photo:flags.2?Photo = RequestedPeer;
-
-sponsoredMessageReportOption#430d3150 text:string option:bytes = SponsoredMessageReportOption;
-
-channels.sponsoredMessageReportResultChooseOption#846f9e42 title:string options:Vector<SponsoredMessageReportOption> = channels.SponsoredMessageReportResult;
-channels.sponsoredMessageReportResultAdsHidden#3e3bcf2f = channels.SponsoredMessageReportResult;
-channels.sponsoredMessageReportResultReported#ad798849 = channels.SponsoredMessageReportResult;
-
-stats.broadcastRevenueStats#5407e297 top_hours_graph:StatsGraph revenue_graph:StatsGraph balances:BroadcastRevenueBalances usd_rate:double = stats.BroadcastRevenueStats;
-
-stats.broadcastRevenueWithdrawalUrl#ec659737 url:string = stats.BroadcastRevenueWithdrawalUrl;
-
-broadcastRevenueTransactionProceeds#557e2cc4 amount:long from_date:int to_date:int = BroadcastRevenueTransaction;
-broadcastRevenueTransactionWithdrawal#5a590978 flags:# pending:flags.0?true failed:flags.2?true amount:long date:int provider:string transaction_date:flags.1?int transaction_url:flags.1?string = BroadcastRevenueTransaction;
-broadcastRevenueTransactionRefund#42d30d2e amount:long date:int provider:string = BroadcastRevenueTransaction;
-
-stats.broadcastRevenueTransactions#87158466 count:int transactions:Vector<BroadcastRevenueTransaction> = stats.BroadcastRevenueTransactions;
-
-reactionNotificationsFromContacts#bac3a61a = ReactionNotificationsFrom;
-reactionNotificationsFromAll#4b9e22a0 = ReactionNotificationsFrom;
-
-reactionsNotifySettings#56e34970 flags:# messages_notify_from:flags.0?ReactionNotificationsFrom stories_notify_from:flags.1?ReactionNotificationsFrom sound:NotificationSound show_previews:Bool = ReactionsNotifySettings;
-
-broadcastRevenueBalances#c3ff71e7 flags:# withdrawal_enabled:flags.0?true current_balance:long available_balance:long overall_revenue:long = BroadcastRevenueBalances;
-
-availableEffect#93c3e27e flags:# premium_required:flags.2?true id:long emoticon:string static_icon_id:flags.0?long effect_sticker_id:long effect_animation_id:flags.1?long = AvailableEffect;
-
-messages.availableEffectsNotModified#d1ed9a5b = messages.AvailableEffects;
-messages.availableEffects#bddb616e hash:int effects:Vector<AvailableEffect> documents:Vector<Document> = messages.AvailableEffects;
-
-factCheck#b89bfccf flags:# need_check:flags.0?true country:flags.1?string text:flags.1?TextWithEntities hash:long = FactCheck;
-
-starsTransactionPeerUnsupported#95f2bfe4 = StarsTransactionPeer;
-starsTransactionPeerAppStore#b457b375 = StarsTransactionPeer;
-starsTransactionPeerPlayMarket#7b560a0b = StarsTransactionPeer;
-starsTransactionPeerPremiumBot#250dbaf8 = StarsTransactionPeer;
-starsTransactionPeerFragment#e92fd902 = StarsTransactionPeer;
-starsTransactionPeer#d80da15d peer:Peer = StarsTransactionPeer;
-starsTransactionPeerAds#60682812 = StarsTransactionPeer;
-starsTransactionPeerAPI#f9677aad = StarsTransactionPeer;
-
-starsTopupOption#bd915c0 flags:# extended:flags.1?true stars:long store_product:flags.0?string currency:string amount:long = StarsTopupOption;
-
-starsTransaction#a39fd94a flags:# refund:flags.3?true pending:flags.4?true failed:flags.6?true gift:flags.10?true reaction:flags.11?true stargift_upgrade:flags.18?true business_transfer:flags.21?true id:string stars:StarsAmount date:int peer:StarsTransactionPeer title:flags.0?string description:flags.1?string photo:flags.2?WebDocument transaction_date:flags.5?int transaction_url:flags.5?string bot_payload:flags.7?bytes msg_id:flags.8?int extended_media:flags.9?Vector<MessageMedia> subscription_period:flags.12?int giveaway_post_id:flags.13?int stargift:flags.14?StarGift floodskip_number:flags.15?int starref_commission_permille:flags.16?int starref_peer:flags.17?Peer starref_amount:flags.17?StarsAmount paid_messages:flags.19?int premium_gift_months:flags.20?int = StarsTransaction;
-
-payments.starsStatus#6c9ce8ed flags:# balance:StarsAmount subscriptions:flags.1?Vector<StarsSubscription> subscriptions_next_offset:flags.2?string subscriptions_missing_balance:flags.4?long history:flags.3?Vector<StarsTransaction> next_offset:flags.0?string chats:Vector<Chat> users:Vector<User> = payments.StarsStatus;
-
-foundStory#e87acbc0 peer:Peer story:StoryItem = FoundStory;
-
-stories.foundStories#e2de7737 flags:# count:int stories:Vector<FoundStory> next_offset:flags.0?string chats:Vector<Chat> users:Vector<User> = stories.FoundStories;
-
-geoPointAddress#de4c5d93 flags:# country_iso2:string state:flags.0?string city:flags.1?string street:flags.2?string = GeoPointAddress;
-
-starsRevenueStatus#febe5491 flags:# withdrawal_enabled:flags.0?true current_balance:StarsAmount available_balance:StarsAmount overall_revenue:StarsAmount next_withdrawal_at:flags.1?int = StarsRevenueStatus;
-
-payments.starsRevenueStats#c92bb73b revenue_graph:StatsGraph status:StarsRevenueStatus usd_rate:double = payments.StarsRevenueStats;
-
-payments.starsRevenueWithdrawalUrl#1dab80b7 url:string = payments.StarsRevenueWithdrawalUrl;
-
-payments.starsRevenueAdsAccountUrl#394e7f21 url:string = payments.StarsRevenueAdsAccountUrl;
-
-inputStarsTransaction#206ae6d1 flags:# refund:flags.0?true id:string = InputStarsTransaction;
-
-starsGiftOption#5e0589f1 flags:# extended:flags.1?true stars:long store_product:flags.0?string currency:string amount:long = StarsGiftOption;
-
-bots.popularAppBots#1991b13b flags:# next_offset:flags.0?string users:Vector<User> = bots.PopularAppBots;
-
-botPreviewMedia#23e91ba3 date:int media:MessageMedia = BotPreviewMedia;
-
-bots.previewInfo#ca71d64 media:Vector<BotPreviewMedia> lang_codes:Vector<string> = bots.PreviewInfo;
-
-starsSubscriptionPricing#5416d58 period:int amount:long = StarsSubscriptionPricing;
-
-starsSubscription#2e6eab1a flags:# canceled:flags.0?true can_refulfill:flags.1?true missing_balance:flags.2?true bot_canceled:flags.7?true id:string peer:Peer until_date:int pricing:StarsSubscriptionPricing chat_invite_hash:flags.3?string title:flags.4?string photo:flags.5?WebDocument invoice_slug:flags.6?string = StarsSubscription;
-
-messageReactor#4ba3a95a flags:# top:flags.0?true my:flags.1?true anonymous:flags.2?true peer_id:flags.3?Peer count:int = MessageReactor;
-
-starsGiveawayOption#94ce852a flags:# extended:flags.0?true default:flags.1?true stars:long yearly_boosts:int store_product:flags.2?string currency:string amount:long winners:Vector<StarsGiveawayWinnersOption> = StarsGiveawayOption;
-
-starsGiveawayWinnersOption#54236209 flags:# default:flags.0?true users:int per_user_stars:long = StarsGiveawayWinnersOption;
-
-starGift#2cc73c8 flags:# limited:flags.0?true sold_out:flags.1?true birthday:flags.2?true id:long sticker:Document stars:long availability_remains:flags.0?int availability_total:flags.0?int convert_stars:long first_sale_date:flags.1?int last_sale_date:flags.1?int upgrade_stars:flags.3?long = StarGift;
-starGiftUnique#5c62d151 flags:# id:long title:string slug:string num:int owner_id:flags.0?Peer owner_name:flags.1?string owner_address:flags.2?string attributes:Vector<StarGiftAttribute> availability_issued:int availability_total:int gift_address:flags.3?string = StarGift;
-
-payments.starGiftsNotModified#a388a368 = payments.StarGifts;
-payments.starGifts#901689ea hash:int gifts:Vector<StarGift> = payments.StarGifts;
-
-messageReportOption#7903e3d9 text:string option:bytes = MessageReportOption;
-
-reportResultChooseOption#f0e4e0b6 title:string options:Vector<MessageReportOption> = ReportResult;
-reportResultAddComment#6f09ac31 flags:# optional:flags.0?true option:bytes = ReportResult;
-reportResultReported#8db33c4b = ReportResult;
-
-messages.botPreparedInlineMessage#8ecf0511 id:string expire_date:int = messages.BotPreparedInlineMessage;
-
-messages.preparedInlineMessage#ff57708d query_id:long result:BotInlineResult peer_types:Vector<InlineQueryPeerType> cache_time:int users:Vector<User> = messages.PreparedInlineMessage;
-
-botAppSettings#c99b1950 flags:# placeholder_path:flags.0?bytes background_color:flags.1?int background_dark_color:flags.2?int header_color:flags.3?int header_dark_color:flags.4?int = BotAppSettings;
-
-starRefProgram#dd0c66f2 flags:# bot_id:long commission_permille:int duration_months:flags.0?int end_date:flags.1?int daily_revenue_per_user:flags.2?StarsAmount = StarRefProgram;
-
-connectedBotStarRef#19a13f71 flags:# revoked:flags.1?true url:string date:int bot_id:long commission_permille:int duration_months:flags.0?int participants:long revenue:long = ConnectedBotStarRef;
-
-payments.connectedStarRefBots#98d5ea1d count:int connected_bots:Vector<ConnectedBotStarRef> users:Vector<User> = payments.ConnectedStarRefBots;
-
-payments.suggestedStarRefBots#b4d5d859 flags:# count:int suggested_bots:Vector<StarRefProgram> users:Vector<User> next_offset:flags.0?string = payments.SuggestedStarRefBots;
-
-starsAmount#bbb6b4a3 amount:long nanos:int = StarsAmount;
-
-messages.foundStickersNotModified#6010c534 flags:# next_offset:flags.0?int = messages.FoundStickers;
-messages.foundStickers#82c9e290 flags:# next_offset:flags.0?int hash:long stickers:Vector<Document> = messages.FoundStickers;
-
-botVerifierSettings#b0cd6617 flags:# can_modify_custom_description:flags.1?true icon:long company:string custom_description:flags.0?string = BotVerifierSettings;
-
-botVerification#f93cd45c bot_id:long icon:long description:string = BotVerification;
-
-starGiftAttributeModel#39d99013 name:string document:Document rarity_permille:int = StarGiftAttribute;
-starGiftAttributePattern#13acff19 name:string document:Document rarity_permille:int = StarGiftAttribute;
-starGiftAttributeBackdrop#94271762 name:string center_color:int edge_color:int pattern_color:int text_color:int rarity_permille:int = StarGiftAttribute;
-starGiftAttributeOriginalDetails#e0bff26c flags:# sender_id:flags.0?Peer recipient_id:Peer date:int message:flags.1?TextWithEntities = StarGiftAttribute;
-
-payments.starGiftUpgradePreview#167bd90b sample_attributes:Vector<StarGiftAttribute> = payments.StarGiftUpgradePreview;
-
-users.users#62d706b8 users:Vector<User> = users.Users;
-users.usersSlice#315a4974 count:int users:Vector<User> = users.Users;
-
-payments.uniqueStarGift#caa2f60b gift:StarGift users:Vector<User> = payments.UniqueStarGift;
-
-messages.webPagePreview#b53e8b21 media:MessageMedia users:Vector<User> = messages.WebPagePreview;
-
-savedStarGift#6056dba5 flags:# name_hidden:flags.0?true unsaved:flags.5?true refunded:flags.9?true can_upgrade:flags.10?true pinned_to_top:flags.12?true from_id:flags.1?Peer date:int gift:StarGift message:flags.2?TextWithEntities msg_id:flags.3?int saved_id:flags.11?long convert_stars:flags.4?long upgrade_stars:flags.6?long can_export_at:flags.7?int transfer_stars:flags.8?long = SavedStarGift;
-
-payments.savedStarGifts#95f389b1 flags:# count:int chat_notifications_enabled:flags.1?Bool gifts:Vector<SavedStarGift> next_offset:flags.0?string chats:Vector<Chat> users:Vector<User> = payments.SavedStarGifts;
-
-inputSavedStarGiftUser#69279795 msg_id:int = InputSavedStarGift;
-inputSavedStarGiftChat#f101aa7f peer:InputPeer saved_id:long = InputSavedStarGift;
-
-payments.starGiftWithdrawalUrl#84aa3a9c url:string = payments.StarGiftWithdrawalUrl;
-
-paidReactionPrivacyDefault#206ad49e = PaidReactionPrivacy;
-paidReactionPrivacyAnonymous#1f0c1ad9 = PaidReactionPrivacy;
-paidReactionPrivacyPeer#dc6cfcf0 peer:InputPeer = PaidReactionPrivacy;
-
-account.paidMessagesRevenue#1e109708 stars_amount:long = account.PaidMessagesRevenue;
-
-requirementToContactEmpty#50a9839 = RequirementToContact;
-requirementToContactPremium#e581e4e9 = RequirementToContact;
-requirementToContactPaidMessages#b4f67e93 stars_amount:long = RequirementToContact;
-
-businessBotRights#a0624cf7 flags:# reply:flags.0?true read_messages:flags.1?true delete_sent_messages:flags.2?true delete_received_messages:flags.3?true edit_name:flags.4?true edit_bio:flags.5?true edit_profile_photo:flags.6?true edit_username:flags.7?true view_gifts:flags.8?true sell_gifts:flags.9?true change_gift_settings:flags.10?true transfer_and_upgrade_gifts:flags.11?true transfer_stars:flags.12?true manage_stories:flags.13?true = BusinessBotRights;
-
-disallowedGiftsSettings#71f276c4 flags:# disallow_unlimited_stargifts:flags.0?true disallow_limited_stargifts:flags.1?true disallow_unique_stargifts:flags.2?true disallow_premium_gifts:flags.3?true = DisallowedGiftsSettings;
-
-sponsoredPeer#c69708d3 flags:# random_id:bytes peer:Peer sponsor_info:flags.0?string additional_info:flags.1?string = SponsoredPeer;
-
-contacts.sponsoredPeersEmpty#ea32b4b1 = contacts.SponsoredPeers;
-contacts.sponsoredPeers#eb032884 peers:Vector<SponsoredPeer> chats:Vector<Chat> users:Vector<User> = contacts.SponsoredPeers;
-
----functions---
-
-invokeAfterMsg#cb9f372d {X:Type} msg_id:long query:!X = X;
-invokeAfterMsgs#3dc4b4f0 {X:Type} msg_ids:Vector<long> query:!X = X;
-initConnection#c1cd5ea9 {X:Type} flags:# api_id:int device_model:string system_version:string app_version:string system_lang_code:string lang_pack:string lang_code:string proxy:flags.0?InputClientProxy params:flags.1?JSONValue query:!X = X;
-invokeWithLayer#da9b0d0d {X:Type} layer:int query:!X = X;
-invokeWithoutUpdates#bf9459b7 {X:Type} query:!X = X;
-invokeWithMessagesRange#365275f2 {X:Type} range:MessageRange query:!X = X;
-invokeWithTakeout#aca9fd2e {X:Type} takeout_id:long query:!X = X;
-invokeWithBusinessConnection#dd289f8e {X:Type} connection_id:string query:!X = X;
-invokeWithGooglePlayIntegrity#1df92984 {X:Type} nonce:string token:string query:!X = X;
-invokeWithApnsSecret#0dae54f8 {X:Type} nonce:string secret:string query:!X = X;
-invokeWithReCaptcha#adbb0f94 {X:Type} token:string query:!X = X;
-
-auth.sendCode#a677244f phone_number:string api_id:int api_hash:string settings:CodeSettings = auth.SentCode;
-auth.signUp#aac7b717 flags:# no_joined_notifications:flags.0?true phone_number:string phone_code_hash:string first_name:string last_name:string = auth.Authorization;
-auth.signIn#8d52a951 flags:# phone_number:string phone_code_hash:string phone_code:flags.0?string email_verification:flags.1?EmailVerification = auth.Authorization;
-auth.logOut#3e72ba19 = auth.LoggedOut;
-auth.resetAuthorizations#9fab0d1a = Bool;
-auth.exportAuthorization#e5bfffcd dc_id:int = auth.ExportedAuthorization;
-auth.importAuthorization#a57a7dad id:long bytes:bytes = auth.Authorization;
-auth.bindTempAuthKey#cdd42a05 perm_auth_key_id:long nonce:long expires_at:int encrypted_message:bytes = Bool;
-auth.importBotAuthorization#67a3ff2c flags:int api_id:int api_hash:string bot_auth_token:string = auth.Authorization;
-auth.checkPassword#d18b4d16 password:InputCheckPasswordSRP = auth.Authorization;
-auth.requestPasswordRecovery#d897bc66 = auth.PasswordRecovery;
-auth.recoverPassword#37096c70 flags:# code:string new_settings:flags.0?account.PasswordInputSettings = auth.Authorization;
-auth.resendCode#cae47523 flags:# phone_number:string phone_code_hash:string reason:flags.0?string = auth.SentCode;
-auth.cancelCode#1f040578 phone_number:string phone_code_hash:string = Bool;
-auth.dropTempAuthKeys#8e48a188 except_auth_keys:Vector<long> = Bool;
-auth.exportLoginToken#b7e085fe api_id:int api_hash:string except_ids:Vector<long> = auth.LoginToken;
-auth.importLoginToken#95ac5ce4 token:bytes = auth.LoginToken;
-auth.acceptLoginToken#e894ad4d token:bytes = Authorization;
-auth.checkRecoveryPassword#d36bf79 code:string = Bool;
-auth.importWebTokenAuthorization#2db873a9 api_id:int api_hash:string web_auth_token:string = auth.Authorization;
-auth.requestFirebaseSms#8e39261e flags:# phone_number:string phone_code_hash:string safety_net_token:flags.0?string play_integrity_token:flags.2?string ios_push_secret:flags.1?string = Bool;
-auth.resetLoginEmail#7e960193 phone_number:string phone_code_hash:string = auth.SentCode;
-auth.reportMissingCode#cb9deff6 phone_number:string phone_code_hash:string mnc:string = Bool;
-
-account.registerDevice#ec86017a flags:# no_muted:flags.0?true token_type:int token:string app_sandbox:Bool secret:bytes other_uids:Vector<long> = Bool;
-account.unregisterDevice#6a0d3206 token_type:int token:string other_uids:Vector<long> = Bool;
-account.updateNotifySettings#84be5b93 peer:InputNotifyPeer settings:InputPeerNotifySettings = Bool;
-account.getNotifySettings#12b3ad31 peer:InputNotifyPeer = PeerNotifySettings;
-account.resetNotifySettings#db7e1747 = Bool;
-account.updateProfile#78515775 flags:# first_name:flags.0?string last_name:flags.1?string about:flags.2?string = User;
-account.updateStatus#6628562c offline:Bool = Bool;
-account.getWallPapers#7967d36 hash:long = account.WallPapers;
-account.reportPeer#c5ba3d86 peer:InputPeer reason:ReportReason message:string = Bool;
-account.checkUsername#2714d86c username:string = Bool;
-account.updateUsername#3e0bdd7c username:string = User;
-account.getPrivacy#dadbc950 key:InputPrivacyKey = account.PrivacyRules;
-account.setPrivacy#c9f81ce8 key:InputPrivacyKey rules:Vector<InputPrivacyRule> = account.PrivacyRules;
-account.deleteAccount#a2c0cf74 flags:# reason:string password:flags.0?InputCheckPasswordSRP = Bool;
-account.getAccountTTL#8fc711d = AccountDaysTTL;
-account.setAccountTTL#2442485e ttl:AccountDaysTTL = Bool;
-account.sendChangePhoneCode#82574ae5 phone_number:string settings:CodeSettings = auth.SentCode;
-account.changePhone#70c32edb phone_number:string phone_code_hash:string phone_code:string = User;
-account.updateDeviceLocked#38df3532 period:int = Bool;
-account.getAuthorizations#e320c158 = account.Authorizations;
-account.resetAuthorization#df77f3bc hash:long = Bool;
-account.getPassword#548a30f5 = account.Password;
-account.getPasswordSettings#9cd4eaf9 password:InputCheckPasswordSRP = account.PasswordSettings;
-account.updatePasswordSettings#a59b102f password:InputCheckPasswordSRP new_settings:account.PasswordInputSettings = Bool;
-account.sendConfirmPhoneCode#1b3faa88 hash:string settings:CodeSettings = auth.SentCode;
-account.confirmPhone#5f2178c3 phone_code_hash:string phone_code:string = Bool;
-account.getTmpPassword#449e0b51 password:InputCheckPasswordSRP period:int = account.TmpPassword;
-account.getWebAuthorizations#182e6d6f = account.WebAuthorizations;
-account.resetWebAuthorization#2d01b9ef hash:long = Bool;
-account.resetWebAuthorizations#682d2594 = Bool;
-account.getAllSecureValues#b288bc7d = Vector<SecureValue>;
-account.getSecureValue#73665bc2 types:Vector<SecureValueType> = Vector<SecureValue>;
-account.saveSecureValue#899fe31d value:InputSecureValue secure_secret_id:long = SecureValue;
-account.deleteSecureValue#b880bc4b types:Vector<SecureValueType> = Bool;
-account.getAuthorizationForm#a929597a bot_id:long scope:string public_key:string = account.AuthorizationForm;
-account.acceptAuthorization#f3ed4c73 bot_id:long scope:string public_key:string value_hashes:Vector<SecureValueHash> credentials:SecureCredentialsEncrypted = Bool;
-account.sendVerifyPhoneCode#a5a356f9 phone_number:string settings:CodeSettings = auth.SentCode;
-account.verifyPhone#4dd3a7f6 phone_number:string phone_code_hash:string phone_code:string = Bool;
-account.sendVerifyEmailCode#98e037bb purpose:EmailVerifyPurpose email:string = account.SentEmailCode;
-account.verifyEmail#32da4cf purpose:EmailVerifyPurpose verification:EmailVerification = account.EmailVerified;
-account.initTakeoutSession#8ef3eab0 flags:# contacts:flags.0?true message_users:flags.1?true message_chats:flags.2?true message_megagroups:flags.3?true message_channels:flags.4?true files:flags.5?true file_max_size:flags.5?long = account.Takeout;
-account.finishTakeoutSession#1d2652ee flags:# success:flags.0?true = Bool;
-account.confirmPasswordEmail#8fdf1920 code:string = Bool;
-account.resendPasswordEmail#7a7f2a15 = Bool;
-account.cancelPasswordEmail#c1cbd5b6 = Bool;
-account.getContactSignUpNotification#9f07c728 = Bool;
-account.setContactSignUpNotification#cff43f61 silent:Bool = Bool;
-account.getNotifyExceptions#53577479 flags:# compare_sound:flags.1?true compare_stories:flags.2?true peer:flags.0?InputNotifyPeer = Updates;
-account.getWallPaper#fc8ddbea wallpaper:InputWallPaper = WallPaper;
-account.uploadWallPaper#e39a8f03 flags:# for_chat:flags.0?true file:InputFile mime_type:string settings:WallPaperSettings = WallPaper;
-account.saveWallPaper#6c5a5b37 wallpaper:InputWallPaper unsave:Bool settings:WallPaperSettings = Bool;
-account.installWallPaper#feed5769 wallpaper:InputWallPaper settings:WallPaperSettings = Bool;
-account.resetWallPapers#bb3b9804 = Bool;
-account.getAutoDownloadSettings#56da0b3f = account.AutoDownloadSettings;
-account.saveAutoDownloadSettings#76f36233 flags:# low:flags.0?true high:flags.1?true settings:AutoDownloadSettings = Bool;
-account.uploadTheme#1c3db333 flags:# file:InputFile thumb:flags.0?InputFile file_name:string mime_type:string = Document;
-account.createTheme#652e4400 flags:# slug:string title:string document:flags.2?InputDocument settings:flags.3?Vector<InputThemeSettings> = Theme;
-account.updateTheme#2bf40ccc flags:# format:string theme:InputTheme slug:flags.0?string title:flags.1?string document:flags.2?InputDocument settings:flags.3?Vector<InputThemeSettings> = Theme;
-account.saveTheme#f257106c theme:InputTheme unsave:Bool = Bool;
-account.installTheme#c727bb3b flags:# dark:flags.0?true theme:flags.1?InputTheme format:flags.2?string base_theme:flags.3?BaseTheme = Bool;
-account.getTheme#3a5869ec format:string theme:InputTheme = Theme;
-account.getThemes#7206e458 format:string hash:long = account.Themes;
-account.setContentSettings#b574b16b flags:# sensitive_enabled:flags.0?true = Bool;
-account.getContentSettings#8b9b4dae = account.ContentSettings;
-account.getMultiWallPapers#65ad71dc wallpapers:Vector<InputWallPaper> = Vector<WallPaper>;
-account.getGlobalPrivacySettings#eb2b4cf6 = GlobalPrivacySettings;
-account.setGlobalPrivacySettings#1edaaac2 settings:GlobalPrivacySettings = GlobalPrivacySettings;
-account.reportProfilePhoto#fa8cc6f5 peer:InputPeer photo_id:InputPhoto reason:ReportReason message:string = Bool;
-account.resetPassword#9308ce1b = account.ResetPasswordResult;
-account.declinePasswordReset#4c9409f6 = Bool;
-account.getChatThemes#d638de89 hash:long = account.Themes;
-account.setAuthorizationTTL#bf899aa0 authorization_ttl_days:int = Bool;
-account.changeAuthorizationSettings#40f48462 flags:# confirmed:flags.3?true hash:long encrypted_requests_disabled:flags.0?Bool call_requests_disabled:flags.1?Bool = Bool;
-account.getSavedRingtones#e1902288 hash:long = account.SavedRingtones;
-account.saveRingtone#3dea5b03 id:InputDocument unsave:Bool = account.SavedRingtone;
-account.uploadRingtone#831a83a2 file:InputFile file_name:string mime_type:string = Document;
-account.updateEmojiStatus#fbd3de6b emoji_status:EmojiStatus = Bool;
-account.getDefaultEmojiStatuses#d6753386 hash:long = account.EmojiStatuses;
-account.getRecentEmojiStatuses#f578105 hash:long = account.EmojiStatuses;
-account.clearRecentEmojiStatuses#18201aae = Bool;
-account.reorderUsernames#ef500eab order:Vector<string> = Bool;
-account.toggleUsername#58d6b376 username:string active:Bool = Bool;
-account.getDefaultProfilePhotoEmojis#e2750328 hash:long = EmojiList;
-account.getDefaultGroupPhotoEmojis#915860ae hash:long = EmojiList;
-account.getAutoSaveSettings#adcbbcda = account.AutoSaveSettings;
-account.saveAutoSaveSettings#d69b8361 flags:# users:flags.0?true chats:flags.1?true broadcasts:flags.2?true peer:flags.3?InputPeer settings:AutoSaveSettings = Bool;
-account.deleteAutoSaveExceptions#53bc0020 = Bool;
-account.invalidateSignInCodes#ca8ae8ba codes:Vector<string> = Bool;
-account.updateColor#7cefa15d flags:# for_profile:flags.1?true color:flags.2?int background_emoji_id:flags.0?long = Bool;
-account.getDefaultBackgroundEmojis#a60ab9ce hash:long = EmojiList;
-account.getChannelDefaultEmojiStatuses#7727a7d5 hash:long = account.EmojiStatuses;
-account.getChannelRestrictedStatusEmojis#35a9e0d5 hash:long = EmojiList;
-account.updateBusinessWorkHours#4b00e066 flags:# business_work_hours:flags.0?BusinessWorkHours = Bool;
-account.updateBusinessLocation#9e6b131a flags:# geo_point:flags.1?InputGeoPoint address:flags.0?string = Bool;
-account.updateBusinessGreetingMessage#66cdafc4 flags:# message:flags.0?InputBusinessGreetingMessage = Bool;
-account.updateBusinessAwayMessage#a26a7fa5 flags:# message:flags.0?InputBusinessAwayMessage = Bool;
-account.updateConnectedBot#66a08c7e flags:# deleted:flags.1?true rights:flags.0?BusinessBotRights bot:InputUser recipients:InputBusinessBotRecipients = Updates;
-account.getConnectedBots#4ea4c80f = account.ConnectedBots;
-account.getBotBusinessConnection#76a86270 connection_id:string = Updates;
-account.updateBusinessIntro#a614d034 flags:# intro:flags.0?InputBusinessIntro = Bool;
-account.toggleConnectedBotPaused#646e1097 peer:InputPeer paused:Bool = Bool;
-account.disablePeerConnectedBot#5e437ed9 peer:InputPeer = Bool;
-account.updateBirthday#cc6e0c11 flags:# birthday:flags.0?Birthday = Bool;
-account.createBusinessChatLink#8851e68e link:InputBusinessChatLink = BusinessChatLink;
-account.editBusinessChatLink#8c3410af slug:string link:InputBusinessChatLink = BusinessChatLink;
-account.deleteBusinessChatLink#60073674 slug:string = Bool;
-account.getBusinessChatLinks#6f70dde1 = account.BusinessChatLinks;
-account.resolveBusinessChatLink#5492e5ee slug:string = account.ResolvedBusinessChatLinks;
-account.updatePersonalChannel#d94305e0 channel:InputChannel = Bool;
-account.toggleSponsoredMessages#b9d9a38d enabled:Bool = Bool;
-account.getReactionsNotifySettings#6dd654c = ReactionsNotifySettings;
-account.setReactionsNotifySettings#316ce548 settings:ReactionsNotifySettings = ReactionsNotifySettings;
-account.getCollectibleEmojiStatuses#2e7b4543 hash:long = account.EmojiStatuses;
-account.addNoPaidMessagesException#6f688aa7 flags:# refund_charged:flags.0?true user_id:InputUser = Bool;
-account.getPaidMessagesRevenue#f1266f38 user_id:InputUser = account.PaidMessagesRevenue;
-
-users.getUsers#d91a548 id:Vector<InputUser> = Vector<User>;
-users.getFullUser#b60f5918 id:InputUser = users.UserFull;
-users.setSecureValueErrors#90c894b5 id:InputUser errors:Vector<SecureValueError> = Bool;
-users.getRequirementsToContact#d89a83a3 id:Vector<InputUser> = Vector<RequirementToContact>;
-
-contacts.getContactIDs#7adc669d hash:long = Vector<int>;
-contacts.getStatuses#c4a353ee = Vector<ContactStatus>;
-contacts.getContacts#5dd69e12 hash:long = contacts.Contacts;
-contacts.importContacts#2c800be5 contacts:Vector<InputContact> = contacts.ImportedContacts;
-contacts.deleteContacts#96a0e00 id:Vector<InputUser> = Updates;
-contacts.deleteByPhones#1013fd9e phones:Vector<string> = Bool;
-contacts.block#2e2e8734 flags:# my_stories_from:flags.0?true id:InputPeer = Bool;
-contacts.unblock#b550d328 flags:# my_stories_from:flags.0?true id:InputPeer = Bool;
-contacts.getBlocked#9a868f80 flags:# my_stories_from:flags.0?true offset:int limit:int = contacts.Blocked;
-contacts.search#11f812d8 q:string limit:int = contacts.Found;
-contacts.resolveUsername#725afbbc flags:# username:string referer:flags.0?string = contacts.ResolvedPeer;
-contacts.getTopPeers#973478b6 flags:# correspondents:flags.0?true bots_pm:flags.1?true bots_inline:flags.2?true phone_calls:flags.3?true forward_users:flags.4?true forward_chats:flags.5?true groups:flags.10?true channels:flags.15?true bots_app:flags.16?true offset:int limit:int hash:long = contacts.TopPeers;
-contacts.resetTopPeerRating#1ae373ac category:TopPeerCategory peer:InputPeer = Bool;
-contacts.resetSaved#879537f1 = Bool;
-contacts.getSaved#82f1e39f = Vector<SavedContact>;
-contacts.toggleTopPeers#8514bdda enabled:Bool = Bool;
-contacts.addContact#e8f463d0 flags:# add_phone_privacy_exception:flags.0?true id:InputUser first_name:string last_name:string phone:string = Updates;
-contacts.acceptContact#f831a20f id:InputUser = Updates;
-contacts.getLocated#d348bc44 flags:# background:flags.1?true geo_point:InputGeoPoint self_expires:flags.0?int = Updates;
-contacts.blockFromReplies#29a8962c flags:# delete_message:flags.0?true delete_history:flags.1?true report_spam:flags.2?true msg_id:int = Updates;
-contacts.resolvePhone#8af94344 phone:string = contacts.ResolvedPeer;
-contacts.exportContactToken#f8654027 = ExportedContactToken;
-contacts.importContactToken#13005788 token:string = User;
-contacts.editCloseFriends#ba6705f0 id:Vector<long> = Bool;
-contacts.setBlocked#94c65c76 flags:# my_stories_from:flags.0?true id:Vector<InputPeer> limit:int = Bool;
-contacts.getBirthdays#daeda864 = contacts.ContactBirthdays;
-contacts.getSponsoredPeers#b6c8c393 q:string = contacts.SponsoredPeers;
-
-messages.getMessages#63c66506 id:Vector<InputMessage> = messages.Messages;
-messages.getDialogs#a0f4cb4f flags:# exclude_pinned:flags.0?true folder_id:flags.1?int offset_date:int offset_id:int offset_peer:InputPeer limit:int hash:long = messages.Dialogs;
-messages.getHistory#4423e6c5 peer:InputPeer offset_id:int offset_date:int add_offset:int limit:int max_id:int min_id:int hash:long = messages.Messages;
-messages.search#29ee847a flags:# peer:InputPeer q:string from_id:flags.0?InputPeer saved_peer_id:flags.2?InputPeer saved_reaction:flags.3?Vector<Reaction> top_msg_id:flags.1?int filter:MessagesFilter min_date:int max_date:int offset_id:int add_offset:int limit:int max_id:int min_id:int hash:long = messages.Messages;
-messages.readHistory#e306d3a peer:InputPeer max_id:int = messages.AffectedMessages;
-messages.deleteHistory#b08f922a flags:# just_clear:flags.0?true revoke:flags.1?true peer:InputPeer max_id:int min_date:flags.2?int max_date:flags.3?int = messages.AffectedHistory;
-messages.deleteMessages#e58e95d2 flags:# revoke:flags.0?true id:Vector<int> = messages.AffectedMessages;
-messages.receivedMessages#5a954c0 max_id:int = Vector<ReceivedNotifyMessage>;
-messages.setTyping#58943ee2 flags:# peer:InputPeer top_msg_id:flags.0?int action:SendMessageAction = Bool;
-messages.sendMessage#fbf2340a flags:# no_webpage:flags.1?true silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true invert_media:flags.16?true allow_paid_floodskip:flags.19?true peer:InputPeer reply_to:flags.0?InputReplyTo message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer quick_reply_shortcut:flags.17?InputQuickReplyShortcut effect:flags.18?long allow_paid_stars:flags.21?long = Updates;
-messages.sendMedia#a550cd78 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true invert_media:flags.16?true allow_paid_floodskip:flags.19?true peer:InputPeer reply_to:flags.0?InputReplyTo media:InputMedia message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int send_as:flags.13?InputPeer quick_reply_shortcut:flags.17?InputQuickReplyShortcut effect:flags.18?long allow_paid_stars:flags.21?long = Updates;
-messages.forwardMessages#bb9fa475 flags:# silent:flags.5?true background:flags.6?true with_my_score:flags.8?true drop_author:flags.11?true drop_media_captions:flags.12?true noforwards:flags.14?true allow_paid_floodskip:flags.19?true from_peer:InputPeer id:Vector<int> random_id:Vector<long> to_peer:InputPeer top_msg_id:flags.9?int schedule_date:flags.10?int send_as:flags.13?InputPeer quick_reply_shortcut:flags.17?InputQuickReplyShortcut video_timestamp:flags.20?int allow_paid_stars:flags.21?long = Updates;
-messages.reportSpam#cf1592db peer:InputPeer = Bool;
-messages.getPeerSettings#efd9a6a2 peer:InputPeer = messages.PeerSettings;
-messages.report#fc78af9b peer:InputPeer id:Vector<int> option:bytes message:string = ReportResult;
-messages.getChats#49e9528f id:Vector<long> = messages.Chats;
-messages.getFullChat#aeb00b34 chat_id:long = messages.ChatFull;
-messages.editChatTitle#73783ffd chat_id:long title:string = Updates;
-messages.editChatPhoto#35ddd674 chat_id:long photo:InputChatPhoto = Updates;
-messages.addChatUser#cbc6d107 chat_id:long user_id:InputUser fwd_limit:int = messages.InvitedUsers;
-messages.deleteChatUser#a2185cab flags:# revoke_history:flags.0?true chat_id:long user_id:InputUser = Updates;
-messages.createChat#92ceddd4 flags:# users:Vector<InputUser> title:string ttl_period:flags.0?int = messages.InvitedUsers;
-messages.getDhConfig#26cf8950 version:int random_length:int = messages.DhConfig;
-messages.requestEncryption#f64daf43 user_id:InputUser random_id:int g_a:bytes = EncryptedChat;
-messages.acceptEncryption#3dbc0415 peer:InputEncryptedChat g_b:bytes key_fingerprint:long = EncryptedChat;
-messages.discardEncryption#f393aea0 flags:# delete_history:flags.0?true chat_id:int = Bool;
-messages.setEncryptedTyping#791451ed peer:InputEncryptedChat typing:Bool = Bool;
-messages.readEncryptedHistory#7f4b690a peer:InputEncryptedChat max_date:int = Bool;
-messages.sendEncrypted#44fa7a15 flags:# silent:flags.0?true peer:InputEncryptedChat random_id:long data:bytes = messages.SentEncryptedMessage;
-messages.sendEncryptedFile#5559481d flags:# silent:flags.0?true peer:InputEncryptedChat random_id:long data:bytes file:InputEncryptedFile = messages.SentEncryptedMessage;
-messages.sendEncryptedService#32d439a4 peer:InputEncryptedChat random_id:long data:bytes = messages.SentEncryptedMessage;
-messages.receivedQueue#55a5bb66 max_qts:int = Vector<long>;
-messages.reportEncryptedSpam#4b0c8c0f peer:InputEncryptedChat = Bool;
-messages.readMessageContents#36a73f77 id:Vector<int> = messages.AffectedMessages;
-messages.getStickers#d5a5d3a1 emoticon:string hash:long = messages.Stickers;
-messages.getAllStickers#b8a0a1a8 hash:long = messages.AllStickers;
-messages.getWebPagePreview#570d6f6f flags:# message:string entities:flags.3?Vector<MessageEntity> = messages.WebPagePreview;
-messages.exportChatInvite#a455de90 flags:# legacy_revoke_permanent:flags.2?true request_needed:flags.3?true peer:InputPeer expire_date:flags.0?int usage_limit:flags.1?int title:flags.4?string subscription_pricing:flags.5?StarsSubscriptionPricing = ExportedChatInvite;
-messages.checkChatInvite#3eadb1bb hash:string = ChatInvite;
-messages.importChatInvite#6c50051c hash:string = Updates;
-messages.getStickerSet#c8a0ec74 stickerset:InputStickerSet hash:int = messages.StickerSet;
-messages.installStickerSet#c78fe460 stickerset:InputStickerSet archived:Bool = messages.StickerSetInstallResult;
-messages.uninstallStickerSet#f96e55de stickerset:InputStickerSet = Bool;
-messages.startBot#e6df7378 bot:InputUser peer:InputPeer random_id:long start_param:string = Updates;
-messages.getMessagesViews#5784d3e1 peer:InputPeer id:Vector<int> increment:Bool = messages.MessageViews;
-messages.editChatAdmin#a85bd1c2 chat_id:long user_id:InputUser is_admin:Bool = Bool;
-messages.migrateChat#a2875319 chat_id:long = Updates;
-messages.searchGlobal#4bc6589a flags:# broadcasts_only:flags.1?true groups_only:flags.2?true users_only:flags.3?true folder_id:flags.0?int q:string filter:MessagesFilter min_date:int max_date:int offset_rate:int offset_peer:InputPeer offset_id:int limit:int = messages.Messages;
-messages.reorderStickerSets#78337739 flags:# masks:flags.0?true emojis:flags.1?true order:Vector<long> = Bool;
-messages.getDocumentByHash#b1f2061f sha256:bytes size:long mime_type:string = Document;
-messages.getSavedGifs#5cf09635 hash:long = messages.SavedGifs;
-messages.saveGif#327a30cb id:InputDocument unsave:Bool = Bool;
-messages.getInlineBotResults#514e999d flags:# bot:InputUser peer:InputPeer geo_point:flags.0?InputGeoPoint query:string offset:string = messages.BotResults;
-messages.setInlineBotResults#bb12a419 flags:# gallery:flags.0?true private:flags.1?true query_id:long results:Vector<InputBotInlineResult> cache_time:int next_offset:flags.2?string switch_pm:flags.3?InlineBotSwitchPM switch_webview:flags.4?InlineBotWebView = Bool;
-messages.sendInlineBotResult#c0cf7646 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true hide_via:flags.11?true peer:InputPeer reply_to:flags.0?InputReplyTo random_id:long query_id:long id:string schedule_date:flags.10?int send_as:flags.13?InputPeer quick_reply_shortcut:flags.17?InputQuickReplyShortcut allow_paid_stars:flags.21?long = Updates;
-messages.getMessageEditData#fda68d36 peer:InputPeer id:int = messages.MessageEditData;
-messages.editMessage#dfd14005 flags:# no_webpage:flags.1?true invert_media:flags.16?true peer:InputPeer id:int message:flags.11?string media:flags.14?InputMedia reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.15?int quick_reply_shortcut_id:flags.17?int = Updates;
-messages.editInlineBotMessage#83557dba flags:# no_webpage:flags.1?true invert_media:flags.16?true id:InputBotInlineMessageID message:flags.11?string media:flags.14?InputMedia reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> = Bool;
-messages.getBotCallbackAnswer#9342ca07 flags:# game:flags.1?true peer:InputPeer msg_id:int data:flags.0?bytes password:flags.2?InputCheckPasswordSRP = messages.BotCallbackAnswer;
-messages.setBotCallbackAnswer#d58f130a flags:# alert:flags.1?true query_id:long message:flags.0?string url:flags.2?string cache_time:int = Bool;
-messages.getPeerDialogs#e470bcfd peers:Vector<InputDialogPeer> = messages.PeerDialogs;
-messages.saveDraft#d372c5ce flags:# no_webpage:flags.1?true invert_media:flags.6?true reply_to:flags.4?InputReplyTo peer:InputPeer message:string entities:flags.3?Vector<MessageEntity> media:flags.5?InputMedia effect:flags.7?long = Bool;
-messages.getAllDrafts#6a3f8d65 = Updates;
-messages.getFeaturedStickers#64780b14 hash:long = messages.FeaturedStickers;
-messages.readFeaturedStickers#5b118126 id:Vector<long> = Bool;
-messages.getRecentStickers#9da9403b flags:# attached:flags.0?true hash:long = messages.RecentStickers;
-messages.saveRecentSticker#392718f8 flags:# attached:flags.0?true id:InputDocument unsave:Bool = Bool;
-messages.clearRecentStickers#8999602d flags:# attached:flags.0?true = Bool;
-messages.getArchivedStickers#57f17692 flags:# masks:flags.0?true emojis:flags.1?true offset_id:long limit:int = messages.ArchivedStickers;
-messages.getMaskStickers#640f82b8 hash:long = messages.AllStickers;
-messages.getAttachedStickers#cc5b67cc media:InputStickeredMedia = Vector<StickerSetCovered>;
-messages.setGameScore#8ef8ecc0 flags:# edit_message:flags.0?true force:flags.1?true peer:InputPeer id:int user_id:InputUser score:int = Updates;
-messages.setInlineGameScore#15ad9f64 flags:# edit_message:flags.0?true force:flags.1?true id:InputBotInlineMessageID user_id:InputUser score:int = Bool;
-messages.getGameHighScores#e822649d peer:InputPeer id:int user_id:InputUser = messages.HighScores;
-messages.getInlineGameHighScores#f635e1b id:InputBotInlineMessageID user_id:InputUser = messages.HighScores;
-messages.getCommonChats#e40ca104 user_id:InputUser max_id:long limit:int = messages.Chats;
-messages.getWebPage#8d9692a3 url:string hash:int = messages.WebPage;
-messages.toggleDialogPin#a731e257 flags:# pinned:flags.0?true peer:InputDialogPeer = Bool;
-messages.reorderPinnedDialogs#3b1adf37 flags:# force:flags.0?true folder_id:int order:Vector<InputDialogPeer> = Bool;
-messages.getPinnedDialogs#d6b94df2 folder_id:int = messages.PeerDialogs;
-messages.setBotShippingResults#e5f672fa flags:# query_id:long error:flags.0?string shipping_options:flags.1?Vector<ShippingOption> = Bool;
-messages.setBotPrecheckoutResults#9c2dd95 flags:# success:flags.1?true query_id:long error:flags.0?string = Bool;
-messages.uploadMedia#14967978 flags:# business_connection_id:flags.0?string peer:InputPeer media:InputMedia = MessageMedia;
-messages.sendScreenshotNotification#a1405817 peer:InputPeer reply_to:InputReplyTo random_id:long = Updates;
-messages.getFavedStickers#4f1aaa9 hash:long = messages.FavedStickers;
-messages.faveSticker#b9ffc55b id:InputDocument unfave:Bool = Bool;
-messages.getUnreadMentions#f107e790 flags:# peer:InputPeer top_msg_id:flags.0?int offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
-messages.readMentions#36e5bf4d flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
-messages.getRecentLocations#702a40e0 peer:InputPeer limit:int hash:long = messages.Messages;
-messages.sendMultiMedia#1bf89d74 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true noforwards:flags.14?true update_stickersets_order:flags.15?true invert_media:flags.16?true allow_paid_floodskip:flags.19?true peer:InputPeer reply_to:flags.0?InputReplyTo multi_media:Vector<InputSingleMedia> schedule_date:flags.10?int send_as:flags.13?InputPeer quick_reply_shortcut:flags.17?InputQuickReplyShortcut effect:flags.18?long allow_paid_stars:flags.21?long = Updates;
-messages.uploadEncryptedFile#5057c497 peer:InputEncryptedChat file:InputEncryptedFile = EncryptedFile;
-messages.searchStickerSets#35705b8a flags:# exclude_featured:flags.0?true q:string hash:long = messages.FoundStickerSets;
-messages.getSplitRanges#1cff7e08 = Vector<MessageRange>;
-messages.markDialogUnread#c286d98f flags:# unread:flags.0?true peer:InputDialogPeer = Bool;
-messages.getDialogUnreadMarks#22e24e22 = Vector<DialogPeer>;
-messages.clearAllDrafts#7e58ee9c = Bool;
-messages.updatePinnedMessage#d2aaf7ec flags:# silent:flags.0?true unpin:flags.1?true pm_oneside:flags.2?true peer:InputPeer id:int = Updates;
-messages.sendVote#10ea6184 peer:InputPeer msg_id:int options:Vector<bytes> = Updates;
-messages.getPollResults#73bb643b peer:InputPeer msg_id:int = Updates;
-messages.getOnlines#6e2be050 peer:InputPeer = ChatOnlines;
-messages.editChatAbout#def60797 peer:InputPeer about:string = Bool;
-messages.editChatDefaultBannedRights#a5866b41 peer:InputPeer banned_rights:ChatBannedRights = Updates;
-messages.getEmojiKeywords#35a0e062 lang_code:string = EmojiKeywordsDifference;
-messages.getEmojiKeywordsDifference#1508b6af lang_code:string from_version:int = EmojiKeywordsDifference;
-messages.getEmojiKeywordsLanguages#4e9963b2 lang_codes:Vector<string> = Vector<EmojiLanguage>;
-messages.getEmojiURL#d5b10c26 lang_code:string = EmojiURL;
-messages.getSearchCounters#1bbcf300 flags:# peer:InputPeer saved_peer_id:flags.2?InputPeer top_msg_id:flags.0?int filters:Vector<MessagesFilter> = Vector<messages.SearchCounter>;
-messages.requestUrlAuth#198fb446 flags:# peer:flags.1?InputPeer msg_id:flags.1?int button_id:flags.1?int url:flags.2?string = UrlAuthResult;
-messages.acceptUrlAuth#b12c7125 flags:# write_allowed:flags.0?true peer:flags.1?InputPeer msg_id:flags.1?int button_id:flags.1?int url:flags.2?string = UrlAuthResult;
-messages.hidePeerSettingsBar#4facb138 peer:InputPeer = Bool;
-messages.getScheduledHistory#f516760b peer:InputPeer hash:long = messages.Messages;
-messages.getScheduledMessages#bdbb0464 peer:InputPeer id:Vector<int> = messages.Messages;
-messages.sendScheduledMessages#bd38850a peer:InputPeer id:Vector<int> = Updates;
-messages.deleteScheduledMessages#59ae2b16 peer:InputPeer id:Vector<int> = Updates;
-messages.getPollVotes#b86e380e flags:# peer:InputPeer id:int option:flags.0?bytes offset:flags.1?string limit:int = messages.VotesList;
-messages.toggleStickerSets#b5052fea flags:# uninstall:flags.0?true archive:flags.1?true unarchive:flags.2?true stickersets:Vector<InputStickerSet> = Bool;
-messages.getDialogFilters#efd48c89 = messages.DialogFilters;
-messages.getSuggestedDialogFilters#a29cd42c = Vector<DialogFilterSuggested>;
-messages.updateDialogFilter#1ad4a04a flags:# id:int filter:flags.0?DialogFilter = Bool;
-messages.updateDialogFiltersOrder#c563c1e4 order:Vector<int> = Bool;
-messages.getOldFeaturedStickers#7ed094a1 offset:int limit:int hash:long = messages.FeaturedStickers;
-messages.getReplies#22ddd30c peer:InputPeer msg_id:int offset_id:int offset_date:int add_offset:int limit:int max_id:int min_id:int hash:long = messages.Messages;
-messages.getDiscussionMessage#446972fd peer:InputPeer msg_id:int = messages.DiscussionMessage;
-messages.readDiscussion#f731a9f4 peer:InputPeer msg_id:int read_max_id:int = Bool;
-messages.unpinAllMessages#ee22b9a8 flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
-messages.deleteChat#5bd0ee50 chat_id:long = Bool;
-messages.deletePhoneCallHistory#f9cbe409 flags:# revoke:flags.0?true = messages.AffectedFoundMessages;
-messages.checkHistoryImport#43fe19f3 import_head:string = messages.HistoryImportParsed;
-messages.initHistoryImport#34090c3b peer:InputPeer file:InputFile media_count:int = messages.HistoryImport;
-messages.uploadImportedMedia#2a862092 peer:InputPeer import_id:long file_name:string media:InputMedia = MessageMedia;
-messages.startHistoryImport#b43df344 peer:InputPeer import_id:long = Bool;
-messages.getExportedChatInvites#a2b5a3f6 flags:# revoked:flags.3?true peer:InputPeer admin_id:InputUser offset_date:flags.2?int offset_link:flags.2?string limit:int = messages.ExportedChatInvites;
-messages.getExportedChatInvite#73746f5c peer:InputPeer link:string = messages.ExportedChatInvite;
-messages.editExportedChatInvite#bdca2f75 flags:# revoked:flags.2?true peer:InputPeer link:string expire_date:flags.0?int usage_limit:flags.1?int request_needed:flags.3?Bool title:flags.4?string = messages.ExportedChatInvite;
-messages.deleteRevokedExportedChatInvites#56987bd5 peer:InputPeer admin_id:InputUser = Bool;
-messages.deleteExportedChatInvite#d464a42b peer:InputPeer link:string = Bool;
-messages.getAdminsWithInvites#3920e6ef peer:InputPeer = messages.ChatAdminsWithInvites;
-messages.getChatInviteImporters#df04dd4e flags:# requested:flags.0?true subscription_expired:flags.3?true peer:InputPeer link:flags.1?string q:flags.2?string offset_date:int offset_user:InputUser limit:int = messages.ChatInviteImporters;
-messages.setHistoryTTL#b80e5fe4 peer:InputPeer period:int = Updates;
-messages.checkHistoryImportPeer#5dc60f03 peer:InputPeer = messages.CheckedHistoryImportPeer;
-messages.setChatTheme#e63be13f peer:InputPeer emoticon:string = Updates;
-messages.getMessageReadParticipants#31c1c44f peer:InputPeer msg_id:int = Vector<ReadParticipantDate>;
-messages.getSearchResultsCalendar#6aa3f6bd flags:# peer:InputPeer saved_peer_id:flags.2?InputPeer filter:MessagesFilter offset_id:int offset_date:int = messages.SearchResultsCalendar;
-messages.getSearchResultsPositions#9c7f2f10 flags:# peer:InputPeer saved_peer_id:flags.2?InputPeer filter:MessagesFilter offset_id:int limit:int = messages.SearchResultsPositions;
-messages.hideChatJoinRequest#7fe7e815 flags:# approved:flags.0?true peer:InputPeer user_id:InputUser = Updates;
-messages.hideAllChatJoinRequests#e085f4ea flags:# approved:flags.0?true peer:InputPeer link:flags.1?string = Updates;
-messages.toggleNoForwards#b11eafa2 peer:InputPeer enabled:Bool = Updates;
-messages.saveDefaultSendAs#ccfddf96 peer:InputPeer send_as:InputPeer = Bool;
-messages.sendReaction#d30d78d4 flags:# big:flags.1?true add_to_recent:flags.2?true peer:InputPeer msg_id:int reaction:flags.0?Vector<Reaction> = Updates;
-messages.getMessagesReactions#8bba90e6 peer:InputPeer id:Vector<int> = Updates;
-messages.getMessageReactionsList#461b3f48 flags:# peer:InputPeer id:int reaction:flags.0?Reaction offset:flags.1?string limit:int = messages.MessageReactionsList;
-messages.setChatAvailableReactions#864b2581 flags:# peer:InputPeer available_reactions:ChatReactions reactions_limit:flags.0?int paid_enabled:flags.1?Bool = Updates;
-messages.getAvailableReactions#18dea0ac hash:int = messages.AvailableReactions;
-messages.setDefaultReaction#4f47a016 reaction:Reaction = Bool;
-messages.translateText#63183030 flags:# peer:flags.0?InputPeer id:flags.0?Vector<int> text:flags.1?Vector<TextWithEntities> to_lang:string = messages.TranslatedText;
-messages.getUnreadReactions#3223495b flags:# peer:InputPeer top_msg_id:flags.0?int offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
-messages.readReactions#54aa7f8e flags:# peer:InputPeer top_msg_id:flags.0?int = messages.AffectedHistory;
-messages.searchSentMedia#107e31a0 q:string filter:MessagesFilter limit:int = messages.Messages;
-messages.getAttachMenuBots#16fcc2cb hash:long = AttachMenuBots;
-messages.getAttachMenuBot#77216192 bot:InputUser = AttachMenuBotsBot;
-messages.toggleBotInAttachMenu#69f59d69 flags:# write_allowed:flags.0?true bot:InputUser enabled:Bool = Bool;
-messages.requestWebView#269dc2c1 flags:# from_bot_menu:flags.4?true silent:flags.5?true compact:flags.7?true fullscreen:flags.8?true peer:InputPeer bot:InputUser url:flags.1?string start_param:flags.3?string theme_params:flags.2?DataJSON platform:string reply_to:flags.0?InputReplyTo send_as:flags.13?InputPeer = WebViewResult;
-messages.prolongWebView#b0d81a83 flags:# silent:flags.5?true peer:InputPeer bot:InputUser query_id:long reply_to:flags.0?InputReplyTo send_as:flags.13?InputPeer = Bool;
-messages.requestSimpleWebView#413a3e73 flags:# from_switch_webview:flags.1?true from_side_menu:flags.2?true compact:flags.7?true fullscreen:flags.8?true bot:InputUser url:flags.3?string start_param:flags.4?string theme_params:flags.0?DataJSON platform:string = WebViewResult;
-messages.sendWebViewResultMessage#a4314f5 bot_query_id:string result:InputBotInlineResult = WebViewMessageSent;
-messages.sendWebViewData#dc0242c8 bot:InputUser random_id:long button_text:string data:string = Updates;
-messages.transcribeAudio#269e9a49 peer:InputPeer msg_id:int = messages.TranscribedAudio;
-messages.rateTranscribedAudio#7f1d072f peer:InputPeer msg_id:int transcription_id:long good:Bool = Bool;
-messages.getCustomEmojiDocuments#d9ab0f54 document_id:Vector<long> = Vector<Document>;
-messages.getEmojiStickers#fbfca18f hash:long = messages.AllStickers;
-messages.getFeaturedEmojiStickers#ecf6736 hash:long = messages.FeaturedStickers;
-messages.reportReaction#3f64c076 peer:InputPeer id:int reaction_peer:InputPeer = Bool;
-messages.getTopReactions#bb8125ba limit:int hash:long = messages.Reactions;
-messages.getRecentReactions#39461db2 limit:int hash:long = messages.Reactions;
-messages.clearRecentReactions#9dfeefb4 = Bool;
-messages.getExtendedMedia#84f80814 peer:InputPeer id:Vector<int> = Updates;
-messages.setDefaultHistoryTTL#9eb51445 period:int = Bool;
-messages.getDefaultHistoryTTL#658b7188 = DefaultHistoryTTL;
-messages.sendBotRequestedPeer#91b2d060 peer:InputPeer msg_id:int button_id:int requested_peers:Vector<InputPeer> = Updates;
-messages.getEmojiGroups#7488ce5b hash:int = messages.EmojiGroups;
-messages.getEmojiStatusGroups#2ecd56cd hash:int = messages.EmojiGroups;
-messages.getEmojiProfilePhotoGroups#21a548f3 hash:int = messages.EmojiGroups;
-messages.searchCustomEmoji#2c11c0d7 emoticon:string hash:long = EmojiList;
-messages.togglePeerTranslations#e47cb579 flags:# disabled:flags.0?true peer:InputPeer = Bool;
-messages.getBotApp#34fdc5c3 app:InputBotApp hash:long = messages.BotApp;
-messages.requestAppWebView#53618bce flags:# write_allowed:flags.0?true compact:flags.7?true fullscreen:flags.8?true peer:InputPeer app:InputBotApp start_param:flags.1?string theme_params:flags.2?DataJSON platform:string = WebViewResult;
-messages.setChatWallPaper#8ffacae1 flags:# for_both:flags.3?true revert:flags.4?true peer:InputPeer wallpaper:flags.0?InputWallPaper settings:flags.2?WallPaperSettings id:flags.1?int = Updates;
-messages.searchEmojiStickerSets#92b4494c flags:# exclude_featured:flags.0?true q:string hash:long = messages.FoundStickerSets;
-messages.getSavedDialogs#5381d21a flags:# exclude_pinned:flags.0?true offset_date:int offset_id:int offset_peer:InputPeer limit:int hash:long = messages.SavedDialogs;
-messages.getSavedHistory#3d9a414d peer:InputPeer offset_id:int offset_date:int add_offset:int limit:int max_id:int min_id:int hash:long = messages.Messages;
-messages.deleteSavedHistory#6e98102b flags:# peer:InputPeer max_id:int min_date:flags.2?int max_date:flags.3?int = messages.AffectedHistory;
-messages.getPinnedSavedDialogs#d63d94e0 = messages.SavedDialogs;
-messages.toggleSavedDialogPin#ac81bbde flags:# pinned:flags.0?true peer:InputDialogPeer = Bool;
-messages.reorderPinnedSavedDialogs#8b716587 flags:# force:flags.0?true order:Vector<InputDialogPeer> = Bool;
-messages.getSavedReactionTags#3637e05b flags:# peer:flags.0?InputPeer hash:long = messages.SavedReactionTags;
-messages.updateSavedReactionTag#60297dec flags:# reaction:Reaction title:flags.0?string = Bool;
-messages.getDefaultTagReactions#bdf93428 hash:long = messages.Reactions;
-messages.getOutboxReadDate#8c4bfe5d peer:InputPeer msg_id:int = OutboxReadDate;
-messages.getQuickReplies#d483f2a8 hash:long = messages.QuickReplies;
-messages.reorderQuickReplies#60331907 order:Vector<int> = Bool;
-messages.checkQuickReplyShortcut#f1d0fbd3 shortcut:string = Bool;
-messages.editQuickReplyShortcut#5c003cef shortcut_id:int shortcut:string = Bool;
-messages.deleteQuickReplyShortcut#3cc04740 shortcut_id:int = Bool;
-messages.getQuickReplyMessages#94a495c3 flags:# shortcut_id:int id:flags.0?Vector<int> hash:long = messages.Messages;
-messages.sendQuickReplyMessages#6c750de1 peer:InputPeer shortcut_id:int id:Vector<int> random_id:Vector<long> = Updates;
-messages.deleteQuickReplyMessages#e105e910 shortcut_id:int id:Vector<int> = Updates;
-messages.toggleDialogFilterTags#fd2dda49 enabled:Bool = Bool;
-messages.getMyStickers#d0b5e1fc offset_id:long limit:int = messages.MyStickers;
-messages.getEmojiStickerGroups#1dd840f5 hash:int = messages.EmojiGroups;
-messages.getAvailableEffects#dea20a39 hash:int = messages.AvailableEffects;
-messages.editFactCheck#589ee75 peer:InputPeer msg_id:int text:TextWithEntities = Updates;
-messages.deleteFactCheck#d1da940c peer:InputPeer msg_id:int = Updates;
-messages.getFactCheck#b9cdc5ee peer:InputPeer msg_id:Vector<int> = Vector<FactCheck>;
-messages.requestMainWebView#c9e01e7b flags:# compact:flags.7?true fullscreen:flags.8?true peer:InputPeer bot:InputUser start_param:flags.1?string theme_params:flags.0?DataJSON platform:string = WebViewResult;
-messages.sendPaidReaction#58bbcb50 flags:# peer:InputPeer msg_id:int count:int random_id:long private:flags.0?PaidReactionPrivacy = Updates;
-messages.togglePaidReactionPrivacy#435885b5 peer:InputPeer msg_id:int private:PaidReactionPrivacy = Bool;
-messages.getPaidReactionPrivacy#472455aa = Updates;
-messages.viewSponsoredMessage#269e3643 random_id:bytes = Bool;
-messages.clickSponsoredMessage#8235057e flags:# media:flags.0?true fullscreen:flags.1?true random_id:bytes = Bool;
-messages.reportSponsoredMessage#12cbf0c4 random_id:bytes option:bytes = channels.SponsoredMessageReportResult;
-messages.getSponsoredMessages#9bd2f439 peer:InputPeer = messages.SponsoredMessages;
-messages.savePreparedInlineMessage#f21f7f2f flags:# result:InputBotInlineResult user_id:InputUser peer_types:flags.0?Vector<InlineQueryPeerType> = messages.BotPreparedInlineMessage;
-messages.getPreparedInlineMessage#857ebdb8 bot:InputUser id:string = messages.PreparedInlineMessage;
-messages.searchStickers#29b1c66a flags:# emojis:flags.0?true q:string emoticon:string lang_code:Vector<string> offset:int limit:int hash:long = messages.FoundStickers;
-messages.reportMessagesDelivery#5a6d7395 flags:# push:flags.0?true peer:InputPeer id:Vector<int> = Bool;
-
-updates.getState#edd4882a = updates.State;
-updates.getDifference#19c2f763 flags:# pts:int pts_limit:flags.1?int pts_total_limit:flags.0?int date:int qts:int qts_limit:flags.2?int = updates.Difference;
-updates.getChannelDifference#3173d78 flags:# force:flags.0?true channel:InputChannel filter:ChannelMessagesFilter pts:int limit:int = updates.ChannelDifference;
-
-photos.updateProfilePhoto#9e82039 flags:# fallback:flags.0?true bot:flags.1?InputUser id:InputPhoto = photos.Photo;
-photos.uploadProfilePhoto#388a3b5 flags:# fallback:flags.3?true bot:flags.5?InputUser file:flags.0?InputFile video:flags.1?InputFile video_start_ts:flags.2?double video_emoji_markup:flags.4?VideoSize = photos.Photo;
-photos.deletePhotos#87cf7f2f id:Vector<InputPhoto> = Vector<long>;
-photos.getUserPhotos#91cd32a8 user_id:InputUser offset:int max_id:long limit:int = photos.Photos;
-photos.uploadContactProfilePhoto#e14c4a71 flags:# suggest:flags.3?true save:flags.4?true user_id:InputUser file:flags.0?InputFile video:flags.1?InputFile video_start_ts:flags.2?double video_emoji_markup:flags.5?VideoSize = photos.Photo;
-
-upload.saveFilePart#b304a621 file_id:long file_part:int bytes:bytes = Bool;
-upload.getFile#be5335be flags:# precise:flags.0?true cdn_supported:flags.1?true location:InputFileLocation offset:long limit:int = upload.File;
-upload.saveBigFilePart#de7b673d file_id:long file_part:int file_total_parts:int bytes:bytes = Bool;
-upload.getWebFile#24e6818d location:InputWebFileLocation offset:int limit:int = upload.WebFile;
-upload.getCdnFile#395f69da file_token:bytes offset:long limit:int = upload.CdnFile;
-upload.reuploadCdnFile#9b2754a8 file_token:bytes request_token:bytes = Vector<FileHash>;
-upload.getCdnFileHashes#91dc3f31 file_token:bytes offset:long = Vector<FileHash>;
-upload.getFileHashes#9156982a location:InputFileLocation offset:long = Vector<FileHash>;
-
-help.getConfig#c4f9186b = Config;
-help.getNearestDc#1fb33026 = NearestDc;
-help.getAppUpdate#522d5a7d source:string = help.AppUpdate;
-help.getInviteText#4d392343 = help.InviteText;
-help.getSupport#9cdf08cd = help.Support;
-help.setBotUpdatesStatus#ec22cfcd pending_updates_count:int message:string = Bool;
-help.getCdnConfig#52029342 = CdnConfig;
-help.getRecentMeUrls#3dc0f114 referer:string = help.RecentMeUrls;
-help.getTermsOfServiceUpdate#2ca51fd1 = help.TermsOfServiceUpdate;
-help.acceptTermsOfService#ee72f79a id:DataJSON = Bool;
-help.getDeepLinkInfo#3fedc75f path:string = help.DeepLinkInfo;
-help.getAppConfig#61e3f854 hash:int = help.AppConfig;
-help.saveAppLog#6f02f748 events:Vector<InputAppEvent> = Bool;
-help.getPassportConfig#c661ad08 hash:int = help.PassportConfig;
-help.getSupportName#d360e72c = help.SupportName;
-help.getUserInfo#38a08d3 user_id:InputUser = help.UserInfo;
-help.editUserInfo#66b91b70 user_id:InputUser message:string entities:Vector<MessageEntity> = help.UserInfo;
-help.getPromoData#c0977421 = help.PromoData;
-help.hidePromoData#1e251c95 peer:InputPeer = Bool;
-help.dismissSuggestion#f50dbaa1 peer:InputPeer suggestion:string = Bool;
-help.getCountriesList#735787a8 lang_code:string hash:int = help.CountriesList;
-help.getPremiumPromo#b81b93d4 = help.PremiumPromo;
-help.getPeerColors#da80f42f hash:int = help.PeerColors;
-help.getPeerProfileColors#abcfa9fd hash:int = help.PeerColors;
-help.getTimezonesList#49b30240 hash:int = help.TimezonesList;
-
-channels.readHistory#cc104937 channel:InputChannel max_id:int = Bool;
-channels.deleteMessages#84c1fd4e channel:InputChannel id:Vector<int> = messages.AffectedMessages;
-channels.reportSpam#f44a8315 channel:InputChannel participant:InputPeer id:Vector<int> = Bool;
-channels.getMessages#ad8c9a23 channel:InputChannel id:Vector<InputMessage> = messages.Messages;
-channels.getParticipants#77ced9d0 channel:InputChannel filter:ChannelParticipantsFilter offset:int limit:int hash:long = channels.ChannelParticipants;
-channels.getParticipant#a0ab6cc6 channel:InputChannel participant:InputPeer = channels.ChannelParticipant;
-channels.getChannels#a7f6bbb id:Vector<InputChannel> = messages.Chats;
-channels.getFullChannel#8736a09 channel:InputChannel = messages.ChatFull;
-channels.createChannel#91006707 flags:# broadcast:flags.0?true megagroup:flags.1?true for_import:flags.3?true forum:flags.5?true title:string about:string geo_point:flags.2?InputGeoPoint address:flags.2?string ttl_period:flags.4?int = Updates;
-channels.editAdmin#d33c8902 channel:InputChannel user_id:InputUser admin_rights:ChatAdminRights rank:string = Updates;
-channels.editTitle#566decd0 channel:InputChannel title:string = Updates;
-channels.editPhoto#f12e57c9 channel:InputChannel photo:InputChatPhoto = Updates;
-channels.checkUsername#10e6bd2c channel:InputChannel username:string = Bool;
-channels.updateUsername#3514b3de channel:InputChannel username:string = Bool;
-channels.joinChannel#24b524c5 channel:InputChannel = Updates;
-channels.leaveChannel#f836aa95 channel:InputChannel = Updates;
-channels.inviteToChannel#c9e33d54 channel:InputChannel users:Vector<InputUser> = messages.InvitedUsers;
-channels.deleteChannel#c0111fe3 channel:InputChannel = Updates;
-channels.exportMessageLink#e63fadeb flags:# grouped:flags.0?true thread:flags.1?true channel:InputChannel id:int = ExportedMessageLink;
-channels.toggleSignatures#418d549c flags:# signatures_enabled:flags.0?true profiles_enabled:flags.1?true channel:InputChannel = Updates;
-channels.getAdminedPublicChannels#f8b036af flags:# by_location:flags.0?true check_limit:flags.1?true for_personal:flags.2?true = messages.Chats;
-channels.editBanned#96e6cd81 channel:InputChannel participant:InputPeer banned_rights:ChatBannedRights = Updates;
-channels.getAdminLog#33ddf480 flags:# channel:InputChannel q:string events_filter:flags.0?ChannelAdminLogEventsFilter admins:flags.1?Vector<InputUser> max_id:long min_id:long limit:int = channels.AdminLogResults;
-channels.setStickers#ea8ca4f9 channel:InputChannel stickerset:InputStickerSet = Bool;
-channels.readMessageContents#eab5dc38 channel:InputChannel id:Vector<int> = Bool;
-channels.deleteHistory#9baa9647 flags:# for_everyone:flags.0?true channel:InputChannel max_id:int = Updates;
-channels.togglePreHistoryHidden#eabbb94c channel:InputChannel enabled:Bool = Updates;
-channels.getLeftChannels#8341ecc0 offset:int = messages.Chats;
-channels.getGroupsForDiscussion#f5dad378 = messages.Chats;
-channels.setDiscussionGroup#40582bb2 broadcast:InputChannel group:InputChannel = Bool;
-channels.editCreator#8f38cd1f channel:InputChannel user_id:InputUser password:InputCheckPasswordSRP = Updates;
-channels.editLocation#58e63f6d channel:InputChannel geo_point:InputGeoPoint address:string = Bool;
-channels.toggleSlowMode#edd49ef0 channel:InputChannel seconds:int = Updates;
-channels.getInactiveChannels#11e831ee = messages.InactiveChats;
-channels.convertToGigagroup#b290c69 channel:InputChannel = Updates;
-channels.getSendAs#e785a43f flags:# for_paid_reactions:flags.0?true peer:InputPeer = channels.SendAsPeers;
-channels.deleteParticipantHistory#367544db channel:InputChannel participant:InputPeer = messages.AffectedHistory;
-channels.toggleJoinToSend#e4cb9580 channel:InputChannel enabled:Bool = Updates;
-channels.toggleJoinRequest#4c2985b6 channel:InputChannel enabled:Bool = Updates;
-channels.reorderUsernames#b45ced1d channel:InputChannel order:Vector<string> = Bool;
-channels.toggleUsername#50f24105 channel:InputChannel username:string active:Bool = Bool;
-channels.deactivateAllUsernames#a245dd3 channel:InputChannel = Bool;
-channels.toggleForum#a4298b29 channel:InputChannel enabled:Bool = Updates;
-channels.createForumTopic#f40c0224 flags:# channel:InputChannel title:string icon_color:flags.0?int icon_emoji_id:flags.3?long random_id:long send_as:flags.2?InputPeer = Updates;
-channels.getForumTopics#de560d1 flags:# channel:InputChannel q:flags.0?string offset_date:int offset_id:int offset_topic:int limit:int = messages.ForumTopics;
-channels.getForumTopicsByID#b0831eb9 channel:InputChannel topics:Vector<int> = messages.ForumTopics;
-channels.editForumTopic#f4dfa185 flags:# channel:InputChannel topic_id:int title:flags.0?string icon_emoji_id:flags.1?long closed:flags.2?Bool hidden:flags.3?Bool = Updates;
-channels.updatePinnedForumTopic#6c2d9026 channel:InputChannel topic_id:int pinned:Bool = Updates;
-channels.deleteTopicHistory#34435f2d channel:InputChannel top_msg_id:int = messages.AffectedHistory;
-channels.reorderPinnedForumTopics#2950a18f flags:# force:flags.0?true channel:InputChannel order:Vector<int> = Updates;
-channels.toggleAntiSpam#68f3e4eb channel:InputChannel enabled:Bool = Updates;
-channels.reportAntiSpamFalsePositive#a850a693 channel:InputChannel msg_id:int = Bool;
-channels.toggleParticipantsHidden#6a6e7854 channel:InputChannel enabled:Bool = Updates;
-channels.updateColor#d8aa3671 flags:# for_profile:flags.1?true channel:InputChannel color:flags.2?int background_emoji_id:flags.0?long = Updates;
-channels.toggleViewForumAsMessages#9738bb15 channel:InputChannel enabled:Bool = Updates;
-channels.getChannelRecommendations#25a71742 flags:# channel:flags.0?InputChannel = messages.Chats;
-channels.updateEmojiStatus#f0d3e6a8 channel:InputChannel emoji_status:EmojiStatus = Updates;
-channels.setBoostsToUnblockRestrictions#ad399cee channel:InputChannel boosts:int = Updates;
-channels.setEmojiStickers#3cd930b7 channel:InputChannel stickerset:InputStickerSet = Bool;
-channels.restrictSponsoredMessages#9ae91519 channel:InputChannel restricted:Bool = Updates;
-channels.searchPosts#d19f987b hashtag:string offset_rate:int offset_peer:InputPeer offset_id:int limit:int = messages.Messages;
-channels.updatePaidMessagesPrice#fc84653f channel:InputChannel send_paid_messages_stars:long = Updates;
-
-bots.sendCustomRequest#aa2769ed custom_method:string params:DataJSON = DataJSON;
-bots.answerWebhookJSONQuery#e6213f4d query_id:long data:DataJSON = Bool;
-bots.setBotCommands#517165a scope:BotCommandScope lang_code:string commands:Vector<BotCommand> = Bool;
-bots.resetBotCommands#3d8de0f9 scope:BotCommandScope lang_code:string = Bool;
-bots.getBotCommands#e34c0dd6 scope:BotCommandScope lang_code:string = Vector<BotCommand>;
-bots.setBotMenuButton#4504d54f user_id:InputUser button:BotMenuButton = Bool;
-bots.getBotMenuButton#9c60eb28 user_id:InputUser = BotMenuButton;
-bots.setBotBroadcastDefaultAdminRights#788464e1 admin_rights:ChatAdminRights = Bool;
-bots.setBotGroupDefaultAdminRights#925ec9ea admin_rights:ChatAdminRights = Bool;
-bots.setBotInfo#10cf3123 flags:# bot:flags.2?InputUser lang_code:string name:flags.3?string about:flags.0?string description:flags.1?string = Bool;
-bots.getBotInfo#dcd914fd flags:# bot:flags.0?InputUser lang_code:string = bots.BotInfo;
-bots.reorderUsernames#9709b1c2 bot:InputUser order:Vector<string> = Bool;
-bots.toggleUsername#53ca973 bot:InputUser username:string active:Bool = Bool;
-bots.canSendMessage#1359f4e6 bot:InputUser = Bool;
-bots.allowSendMessage#f132e3ef bot:InputUser = Updates;
-bots.invokeWebViewCustomMethod#87fc5e7 bot:InputUser custom_method:string params:DataJSON = DataJSON;
-bots.getPopularAppBots#c2510192 offset:string limit:int = bots.PopularAppBots;
-bots.addPreviewMedia#17aeb75a bot:InputUser lang_code:string media:InputMedia = BotPreviewMedia;
-bots.editPreviewMedia#8525606f bot:InputUser lang_code:string media:InputMedia new_media:InputMedia = BotPreviewMedia;
-bots.deletePreviewMedia#2d0135b3 bot:InputUser lang_code:string media:Vector<InputMedia> = Bool;
-bots.reorderPreviewMedias#b627f3aa bot:InputUser lang_code:string order:Vector<InputMedia> = Bool;
-bots.getPreviewInfo#423ab3ad bot:InputUser lang_code:string = bots.PreviewInfo;
-bots.getPreviewMedias#a2a5594d bot:InputUser = Vector<BotPreviewMedia>;
-bots.updateUserEmojiStatus#ed9f30c5 user_id:InputUser emoji_status:EmojiStatus = Bool;
-bots.toggleUserEmojiStatusPermission#6de6392 bot:InputUser enabled:Bool = Bool;
-bots.checkDownloadFileParams#50077589 bot:InputUser file_name:string url:string = Bool;
-bots.getAdminedBots#b0711d83 = Vector<User>;
-bots.updateStarRefProgram#778b5ab3 flags:# bot:InputUser commission_permille:int duration_months:flags.0?int = StarRefProgram;
-bots.setCustomVerification#8b89dfbd flags:# enabled:flags.1?true bot:flags.0?InputUser peer:InputPeer custom_description:flags.2?string = Bool;
-bots.getBotRecommendations#a1b70815 bot:InputUser = users.Users;
-
-payments.getPaymentForm#37148dbb flags:# invoice:InputInvoice theme_params:flags.0?DataJSON = payments.PaymentForm;
-payments.getPaymentReceipt#2478d1cc peer:InputPeer msg_id:int = payments.PaymentReceipt;
-payments.validateRequestedInfo#b6c8f12b flags:# save:flags.0?true invoice:InputInvoice info:PaymentRequestedInfo = payments.ValidatedRequestedInfo;
-payments.sendPaymentForm#2d03522f flags:# form_id:long invoice:InputInvoice requested_info_id:flags.0?string shipping_option_id:flags.1?string credentials:InputPaymentCredentials tip_amount:flags.2?long = payments.PaymentResult;
-payments.getSavedInfo#227d824b = payments.SavedInfo;
-payments.clearSavedInfo#d83d70c1 flags:# credentials:flags.0?true info:flags.1?true = Bool;
-payments.getBankCardData#2e79d779 number:string = payments.BankCardData;
-payments.exportInvoice#f91b065 invoice_media:InputMedia = payments.ExportedInvoice;
-payments.assignAppStoreTransaction#80ed747d receipt:bytes purpose:InputStorePaymentPurpose = Updates;
-payments.assignPlayMarketTransaction#dffd50d3 receipt:DataJSON purpose:InputStorePaymentPurpose = Updates;
-payments.getPremiumGiftCodeOptions#2757ba54 flags:# boost_peer:flags.0?InputPeer = Vector<PremiumGiftCodeOption>;
-payments.checkGiftCode#8e51b4c1 slug:string = payments.CheckedGiftCode;
-payments.applyGiftCode#f6e26854 slug:string = Updates;
-payments.getGiveawayInfo#f4239425 peer:InputPeer msg_id:int = payments.GiveawayInfo;
-payments.launchPrepaidGiveaway#5ff58f20 peer:InputPeer giveaway_id:long purpose:InputStorePaymentPurpose = Updates;
-payments.getStarsTopupOptions#c00ec7d3 = Vector<StarsTopupOption>;
-payments.getStarsStatus#104fcfa7 peer:InputPeer = payments.StarsStatus;
-payments.getStarsTransactions#69da4557 flags:# inbound:flags.0?true outbound:flags.1?true ascending:flags.2?true subscription_id:flags.3?string peer:InputPeer offset:string limit:int = payments.StarsStatus;
-payments.sendStarsForm#7998c914 form_id:long invoice:InputInvoice = payments.PaymentResult;
-payments.refundStarsCharge#25ae8f4a user_id:InputUser charge_id:string = Updates;
-payments.getStarsRevenueStats#d91ffad6 flags:# dark:flags.0?true peer:InputPeer = payments.StarsRevenueStats;
-payments.getStarsRevenueWithdrawalUrl#13bbe8b3 peer:InputPeer stars:long password:InputCheckPasswordSRP = payments.StarsRevenueWithdrawalUrl;
-payments.getStarsRevenueAdsAccountUrl#d1d7efc5 peer:InputPeer = payments.StarsRevenueAdsAccountUrl;
-payments.getStarsTransactionsByID#27842d2e peer:InputPeer id:Vector<InputStarsTransaction> = payments.StarsStatus;
-payments.getStarsGiftOptions#d3c96bc8 flags:# user_id:flags.0?InputUser = Vector<StarsGiftOption>;
-payments.getStarsSubscriptions#32512c5 flags:# missing_balance:flags.0?true peer:InputPeer offset:string = payments.StarsStatus;
-payments.changeStarsSubscription#c7770878 flags:# peer:InputPeer subscription_id:string canceled:flags.0?Bool = Bool;
-payments.fulfillStarsSubscription#cc5bebb3 peer:InputPeer subscription_id:string = Bool;
-payments.getStarsGiveawayOptions#bd1efd3e = Vector<StarsGiveawayOption>;
-payments.getStarGifts#c4563590 hash:int = payments.StarGifts;
-payments.saveStarGift#2a2a697c flags:# unsave:flags.0?true stargift:InputSavedStarGift = Bool;
-payments.convertStarGift#74bf076b stargift:InputSavedStarGift = Bool;
-payments.botCancelStarsSubscription#6dfa0622 flags:# restore:flags.0?true user_id:InputUser charge_id:string = Bool;
-payments.getConnectedStarRefBots#5869a553 flags:# peer:InputPeer offset_date:flags.2?int offset_link:flags.2?string limit:int = payments.ConnectedStarRefBots;
-payments.getConnectedStarRefBot#b7d998f0 peer:InputPeer bot:InputUser = payments.ConnectedStarRefBots;
-payments.getSuggestedStarRefBots#d6b48f7 flags:# order_by_revenue:flags.0?true order_by_date:flags.1?true peer:InputPeer offset:string limit:int = payments.SuggestedStarRefBots;
-payments.connectStarRefBot#7ed5348a peer:InputPeer bot:InputUser = payments.ConnectedStarRefBots;
-payments.editConnectedStarRefBot#e4fca4a3 flags:# revoked:flags.0?true peer:InputPeer link:string = payments.ConnectedStarRefBots;
-payments.getStarGiftUpgradePreview#9c9abcb1 gift_id:long = payments.StarGiftUpgradePreview;
-payments.upgradeStarGift#aed6e4f5 flags:# keep_original_details:flags.0?true stargift:InputSavedStarGift = Updates;
-payments.transferStarGift#7f18176a stargift:InputSavedStarGift to_id:InputPeer = Updates;
-payments.getUniqueStarGift#a1974d72 slug:string = payments.UniqueStarGift;
-payments.getSavedStarGifts#23830de9 flags:# exclude_unsaved:flags.0?true exclude_saved:flags.1?true exclude_unlimited:flags.2?true exclude_limited:flags.3?true exclude_unique:flags.4?true sort_by_value:flags.5?true peer:InputPeer offset:string limit:int = payments.SavedStarGifts;
-payments.getSavedStarGift#b455a106 stargift:Vector<InputSavedStarGift> = payments.SavedStarGifts;
-payments.getStarGiftWithdrawalUrl#d06e93a8 stargift:InputSavedStarGift password:InputCheckPasswordSRP = payments.StarGiftWithdrawalUrl;
-payments.toggleChatStarGiftNotifications#60eaefa1 flags:# enabled:flags.0?true peer:InputPeer = Bool;
-payments.toggleStarGiftsPinnedToTop#1513e7b0 peer:InputPeer stargift:Vector<InputSavedStarGift> = Bool;
-payments.canPurchaseStore#4fdc5ea7 purpose:InputStorePaymentPurpose = Bool;
-
-stickers.createStickerSet#9021ab67 flags:# masks:flags.0?true emojis:flags.5?true text_color:flags.6?true user_id:InputUser title:string short_name:string thumb:flags.2?InputDocument stickers:Vector<InputStickerSetItem> software:flags.3?string = messages.StickerSet;
-stickers.removeStickerFromSet#f7760f51 sticker:InputDocument = messages.StickerSet;
-stickers.changeStickerPosition#ffb6d4ca sticker:InputDocument position:int = messages.StickerSet;
-stickers.addStickerToSet#8653febe stickerset:InputStickerSet sticker:InputStickerSetItem = messages.StickerSet;
-stickers.setStickerSetThumb#a76a5392 flags:# stickerset:InputStickerSet thumb:flags.0?InputDocument thumb_document_id:flags.1?long = messages.StickerSet;
-stickers.checkShortName#284b3639 short_name:string = Bool;
-stickers.suggestShortName#4dafc503 title:string = stickers.SuggestedShortName;
-stickers.changeSticker#f5537ebc flags:# sticker:InputDocument emoji:flags.0?string mask_coords:flags.1?MaskCoords keywords:flags.2?string = messages.StickerSet;
-stickers.renameStickerSet#124b1c00 stickerset:InputStickerSet title:string = messages.StickerSet;
-stickers.deleteStickerSet#87704394 stickerset:InputStickerSet = Bool;
-stickers.replaceSticker#4696459a sticker:InputDocument new_sticker:InputStickerSetItem = messages.StickerSet;
-
-phone.getCallConfig#55451fa9 = DataJSON;
-phone.requestCall#a6c4600c flags:# video:flags.0?true user_id:InputUser conference_call:flags.1?InputGroupCall random_id:int g_a_hash:bytes protocol:PhoneCallProtocol = phone.PhoneCall;
-phone.acceptCall#3bd2b4a0 peer:InputPhoneCall g_b:bytes protocol:PhoneCallProtocol = phone.PhoneCall;
-phone.confirmCall#2efe1722 peer:InputPhoneCall g_a:bytes key_fingerprint:long protocol:PhoneCallProtocol = phone.PhoneCall;
-phone.receivedCall#17d54f61 peer:InputPhoneCall = Bool;
-phone.discardCall#b2cbc1c0 flags:# video:flags.0?true peer:InputPhoneCall duration:int reason:PhoneCallDiscardReason connection_id:long = Updates;
-phone.setCallRating#59ead627 flags:# user_initiative:flags.0?true peer:InputPhoneCall rating:int comment:string = Updates;
-phone.saveCallDebug#277add7e peer:InputPhoneCall debug:DataJSON = Bool;
-phone.sendSignalingData#ff7a9383 peer:InputPhoneCall data:bytes = Bool;
-phone.createGroupCall#48cdc6d8 flags:# rtmp_stream:flags.2?true peer:InputPeer random_id:int title:flags.0?string schedule_date:flags.1?int = Updates;
-phone.joinGroupCall#d61e1df3 flags:# muted:flags.0?true video_stopped:flags.2?true call:InputGroupCall join_as:InputPeer invite_hash:flags.1?string key_fingerprint:flags.3?long params:DataJSON = Updates;
-phone.leaveGroupCall#500377f9 call:InputGroupCall source:int = Updates;
-phone.inviteToGroupCall#7b393160 call:InputGroupCall users:Vector<InputUser> = Updates;
-phone.discardGroupCall#7a777135 call:InputGroupCall = Updates;
-phone.toggleGroupCallSettings#74bbb43d flags:# reset_invite_hash:flags.1?true call:InputGroupCall join_muted:flags.0?Bool = Updates;
-phone.getGroupCall#41845db call:InputGroupCall limit:int = phone.GroupCall;
-phone.getGroupParticipants#c558d8ab call:InputGroupCall ids:Vector<InputPeer> sources:Vector<int> offset:string limit:int = phone.GroupParticipants;
-phone.checkGroupCall#b59cf977 call:InputGroupCall sources:Vector<int> = Vector<int>;
-phone.toggleGroupCallRecord#f128c708 flags:# start:flags.0?true video:flags.2?true call:InputGroupCall title:flags.1?string video_portrait:flags.2?Bool = Updates;
-phone.editGroupCallParticipant#a5273abf flags:# call:InputGroupCall participant:InputPeer muted:flags.0?Bool volume:flags.1?int raise_hand:flags.2?Bool video_stopped:flags.3?Bool video_paused:flags.4?Bool presentation_paused:flags.5?Bool = Updates;
-phone.editGroupCallTitle#1ca6ac0a call:InputGroupCall title:string = Updates;
-phone.getGroupCallJoinAs#ef7c213a peer:InputPeer = phone.JoinAsPeers;
-phone.exportGroupCallInvite#e6aa647f flags:# can_self_unmute:flags.0?true call:InputGroupCall = phone.ExportedGroupCallInvite;
-phone.toggleGroupCallStartSubscription#219c34e6 call:InputGroupCall subscribed:Bool = Updates;
-phone.startScheduledGroupCall#5680e342 call:InputGroupCall = Updates;
-phone.saveDefaultGroupCallJoinAs#575e1f8c peer:InputPeer join_as:InputPeer = Bool;
-phone.joinGroupCallPresentation#cbea6bc4 call:InputGroupCall params:DataJSON = Updates;
-phone.leaveGroupCallPresentation#1c50d144 call:InputGroupCall = Updates;
-phone.getGroupCallStreamChannels#1ab21940 call:InputGroupCall = phone.GroupCallStreamChannels;
-phone.getGroupCallStreamRtmpUrl#deb3abbf peer:InputPeer revoke:Bool = phone.GroupCallStreamRtmpUrl;
-phone.saveCallLog#41248786 peer:InputPhoneCall file:InputFile = Bool;
-phone.createConferenceCall#dfc909ab peer:InputPhoneCall key_fingerprint:long = phone.PhoneCall;
-
-langpack.getLangPack#f2f2330a lang_pack:string lang_code:string = LangPackDifference;
-langpack.getStrings#efea3803 lang_pack:string lang_code:string keys:Vector<string> = Vector<LangPackString>;
-langpack.getDifference#cd984aa5 lang_pack:string lang_code:string from_version:int = LangPackDifference;
-langpack.getLanguages#42c6978f lang_pack:string = Vector<LangPackLanguage>;
-langpack.getLanguage#6a596502 lang_pack:string lang_code:string = LangPackLanguage;
-
-folders.editPeerFolders#6847d0ab folder_peers:Vector<InputFolderPeer> = Updates;
-
-stats.getBroadcastStats#ab42441a flags:# dark:flags.0?true channel:InputChannel = stats.BroadcastStats;
-stats.loadAsyncGraph#621d5fa0 flags:# token:string x:flags.0?long = StatsGraph;
-stats.getMegagroupStats#dcdf8607 flags:# dark:flags.0?true channel:InputChannel = stats.MegagroupStats;
-stats.getMessagePublicForwards#5f150144 channel:InputChannel msg_id:int offset:string limit:int = stats.PublicForwards;
-stats.getMessageStats#b6e0a3f5 flags:# dark:flags.0?true channel:InputChannel msg_id:int = stats.MessageStats;
-stats.getStoryStats#374fef40 flags:# dark:flags.0?true peer:InputPeer id:int = stats.StoryStats;
-stats.getStoryPublicForwards#a6437ef6 peer:InputPeer id:int offset:string limit:int = stats.PublicForwards;
-stats.getBroadcastRevenueStats#f788ee19 flags:# dark:flags.0?true peer:InputPeer = stats.BroadcastRevenueStats;
-stats.getBroadcastRevenueWithdrawalUrl#9df4faad peer:InputPeer password:InputCheckPasswordSRP = stats.BroadcastRevenueWithdrawalUrl;
-stats.getBroadcastRevenueTransactions#70990b6d peer:InputPeer offset:int limit:int = stats.BroadcastRevenueTransactions;
-
-chatlists.exportChatlistInvite#8472478e chatlist:InputChatlist title:string peers:Vector<InputPeer> = chatlists.ExportedChatlistInvite;
-chatlists.deleteExportedInvite#719c5c5e chatlist:InputChatlist slug:string = Bool;
-chatlists.editExportedInvite#653db63d flags:# chatlist:InputChatlist slug:string title:flags.1?string peers:flags.2?Vector<InputPeer> = ExportedChatlistInvite;
-chatlists.getExportedInvites#ce03da83 chatlist:InputChatlist = chatlists.ExportedInvites;
-chatlists.checkChatlistInvite#41c10fff slug:string = chatlists.ChatlistInvite;
-chatlists.joinChatlistInvite#a6b1e39a slug:string peers:Vector<InputPeer> = Updates;
-chatlists.getChatlistUpdates#89419521 chatlist:InputChatlist = chatlists.ChatlistUpdates;
-chatlists.joinChatlistUpdates#e089f8f5 chatlist:InputChatlist peers:Vector<InputPeer> = Updates;
-chatlists.hideChatlistUpdates#66e486fb chatlist:InputChatlist = Bool;
-chatlists.getLeaveChatlistSuggestions#fdbcd714 chatlist:InputChatlist = Vector<Peer>;
-chatlists.leaveChatlist#74fae13a chatlist:InputChatlist peers:Vector<InputPeer> = Updates;
-
-stories.canSendStory#c7dfdfdd peer:InputPeer = Bool;
-stories.sendStory#e4e6694b flags:# pinned:flags.2?true noforwards:flags.4?true fwd_modified:flags.7?true peer:InputPeer media:InputMedia media_areas:flags.5?Vector<MediaArea> caption:flags.0?string entities:flags.1?Vector<MessageEntity> privacy_rules:Vector<InputPrivacyRule> random_id:long period:flags.3?int fwd_from_id:flags.6?InputPeer fwd_from_story:flags.6?int = Updates;
-stories.editStory#b583ba46 flags:# peer:InputPeer id:int media:flags.0?InputMedia media_areas:flags.3?Vector<MediaArea> caption:flags.1?string entities:flags.1?Vector<MessageEntity> privacy_rules:flags.2?Vector<InputPrivacyRule> = Updates;
-stories.deleteStories#ae59db5f peer:InputPeer id:Vector<int> = Vector<int>;
-stories.togglePinned#9a75a1ef peer:InputPeer id:Vector<int> pinned:Bool = Vector<int>;
-stories.getAllStories#eeb0d625 flags:# next:flags.1?true hidden:flags.2?true state:flags.0?string = stories.AllStories;
-stories.getPinnedStories#5821a5dc peer:InputPeer offset_id:int limit:int = stories.Stories;
-stories.getStoriesArchive#b4352016 peer:InputPeer offset_id:int limit:int = stories.Stories;
-stories.getStoriesByID#5774ca74 peer:InputPeer id:Vector<int> = stories.Stories;
-stories.toggleAllStoriesHidden#7c2557c4 hidden:Bool = Bool;
-stories.readStories#a556dac8 peer:InputPeer max_id:int = Vector<int>;
-stories.incrementStoryViews#b2028afb peer:InputPeer id:Vector<int> = Bool;
-stories.getStoryViewsList#7ed23c57 flags:# just_contacts:flags.0?true reactions_first:flags.2?true forwards_first:flags.3?true peer:InputPeer q:flags.1?string id:int offset:string limit:int = stories.StoryViewsList;
-stories.getStoriesViews#28e16cc8 peer:InputPeer id:Vector<int> = stories.StoryViews;
-stories.exportStoryLink#7b8def20 peer:InputPeer id:int = ExportedStoryLink;
-stories.report#19d8eb45 peer:InputPeer id:Vector<int> option:bytes message:string = ReportResult;
-stories.activateStealthMode#57bbd166 flags:# past:flags.0?true future:flags.1?true = Updates;
-stories.sendReaction#7fd736b2 flags:# add_to_recent:flags.0?true peer:InputPeer story_id:int reaction:Reaction = Updates;
-stories.getPeerStories#2c4ada50 peer:InputPeer = stories.PeerStories;
-stories.getAllReadPeerStories#9b5ae7f9 = Updates;
-stories.getPeerMaxIDs#535983c3 id:Vector<InputPeer> = Vector<int>;
-stories.getChatsToSend#a56a8b60 = messages.Chats;
-stories.togglePeerStoriesHidden#bd0415c4 peer:InputPeer hidden:Bool = Bool;
-stories.getStoryReactionsList#b9b2881f flags:# forwards_first:flags.2?true peer:InputPeer id:int reaction:flags.0?Reaction offset:flags.1?string limit:int = stories.StoryReactionsList;
-stories.togglePinnedToTop#b297e9b peer:InputPeer id:Vector<int> = Bool;
-stories.searchPosts#d1810907 flags:# hashtag:flags.0?string area:flags.1?MediaArea peer:flags.2?InputPeer offset:string limit:int = stories.FoundStories;
-
-premium.getBoostsList#60f67660 flags:# gifts:flags.0?true peer:InputPeer offset:string limit:int = premium.BoostsList;
-premium.getMyBoosts#be77b4a = premium.MyBoosts;
-premium.applyBoost#6b7da746 flags:# slots:flags.0?Vector<int> peer:InputPeer = premium.MyBoosts;
-premium.getBoostsStatus#42f1f61 peer:InputPeer = premium.BoostsStatus;
-premium.getUserBoosts#39854d1f peer:InputPeer user_id:InputUser = premium.BoostsList;
-
-smsjobs.isEligibleToJoin#edc39d0 = smsjobs.EligibilityToJoin;
-smsjobs.join#a74ece2d = Bool;
-smsjobs.leave#9898ad73 = Bool;
-smsjobs.updateSettings#93fa0bf flags:# allow_international:flags.0?true = Bool;
-smsjobs.getStatus#10a698e8 = smsjobs.Status;
-smsjobs.getSmsJob#778d902f job_id:string = SmsJob;
-smsjobs.finishJob#4f1ebf24 flags:# job_id:string error:flags.0?string = Bool;
-
-fragment.getCollectibleInfo#be1e85ba collectible:InputCollectible = fragment.CollectibleInfo;
diff --git a/third-party/td/td/td/generate/tl-parser/CMakeLists.txt b/third-party/td/td/td/generate/tl-parser/CMakeLists.txt
deleted file mode 100644
index 6778c80b07..0000000000
--- a/third-party/td/td/td/generate/tl-parser/CMakeLists.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
-
-project(tl-parser LANGUAGES C)
-
-set(SOURCES crc32.h crc32.c tlc.c tl-parser.c tl-parser.h tl-parser-tree.h tl-tl.h portable_endian.h)
-
-if (WIN32)
-  add_definitions("-D_CRT_SECURE_NO_WARNINGS")
-  list(APPEND SOURCES wgetopt.c wgetopt.h)
-  if (MSVC)
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /utf-8 /wd4101 /wd4244 /wd4267")
-  endif()
-endif()
-
-add_executable(${PROJECT_NAME} ${SOURCES})
-
-if (NOT WIN32)
-  target_link_libraries(${PROJECT_NAME} PRIVATE m)
-endif()
diff --git a/third-party/td/td/td/generate/tl-parser/LICENSE b/third-party/td/td/td/generate/tl-parser/LICENSE
deleted file mode 100644
index d159169d10..0000000000
--- a/third-party/td/td/td/generate/tl-parser/LICENSE
+++ /dev/null
@@ -1,339 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
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-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Lesser General Public License instead.)  You can apply it to
-your programs, too.
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-price.  Our General Public Licenses are designed to make sure that you
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-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
-
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
-
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.
diff --git a/third-party/td/td/td/generate/tl-parser/crc32.c b/third-party/td/td/td/generate/tl-parser/crc32.c
deleted file mode 100644
index b7e02181b2..0000000000
--- a/third-party/td/td/td/generate/tl-parser/crc32.c
+++ /dev/null
@@ -1,345 +0,0 @@
-/*
-    This file is part of VK/KittenPHP-DB-Engine Library.
-
-    VK/KittenPHP-DB-Engine Library is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Lesser General Public License as published by
-    the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
-
-    VK/KittenPHP-DB-Engine Library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Lesser General Public License for more details.
-
-    You should have received a copy of the GNU Lesser General Public License
-    along with VK/KittenPHP-DB-Engine Library.  If not, see <http://www.gnu.org/licenses/>.
-
-    Copyright 2009-2012 Vkontakte Ltd
-              2009-2012 Nikolai Durov
-              2009-2012 Andrei Lopatin
-                   2012 Anton Maydell
-*/
-
-#include <stdlib.h>
-#include <math.h>
-#include <assert.h>
-
-#include "crc32.h"
-
-unsigned int crc32_table[256] =
-{
-  0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
-  0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
-  0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
-  0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
-  0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
-  0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
-  0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
-  0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
-  0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
-  0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
-  0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
-  0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
-  0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
-  0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
-  0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
-  0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
-  0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
-  0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
-  0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
-  0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
-  0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
-  0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
-  0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
-  0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
-  0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
-  0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
-  0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
-  0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
-  0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
-  0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
-  0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
-  0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
-  0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
-  0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
-  0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
-  0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
-  0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
-  0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
-  0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
-  0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
-  0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
-  0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
-  0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
-  0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
-  0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
-  0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
-  0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
-  0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
-  0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
-  0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
-  0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
-  0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
-  0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
-  0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
-  0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
-  0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
-  0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
-  0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
-  0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
-  0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
-  0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
-  0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
-  0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
-  0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
-};
-
-unsigned int crc32_table2[256] = 
-{
-  0x00000000, 0x191b3141, 0x32366282, 0x2b2d53c3,
-  0x646cc504, 0x7d77f445, 0x565aa786, 0x4f4196c7,
-  0xc8d98a08, 0xd1c2bb49, 0xfaefe88a, 0xe3f4d9cb,
-  0xacb54f0c, 0xb5ae7e4d, 0x9e832d8e, 0x87981ccf,
-  0x4ac21251, 0x53d92310, 0x78f470d3, 0x61ef4192,
-  0x2eaed755, 0x37b5e614, 0x1c98b5d7, 0x05838496,
-  0x821b9859, 0x9b00a918, 0xb02dfadb, 0xa936cb9a,
-  0xe6775d5d, 0xff6c6c1c, 0xd4413fdf, 0xcd5a0e9e,
-  0x958424a2, 0x8c9f15e3, 0xa7b24620, 0xbea97761,
-  0xf1e8e1a6, 0xe8f3d0e7, 0xc3de8324, 0xdac5b265,
-  0x5d5daeaa, 0x44469feb, 0x6f6bcc28, 0x7670fd69,
-  0x39316bae, 0x202a5aef, 0x0b07092c, 0x121c386d,
-  0xdf4636f3, 0xc65d07b2, 0xed705471, 0xf46b6530,
-  0xbb2af3f7, 0xa231c2b6, 0x891c9175, 0x9007a034,
-  0x179fbcfb, 0x0e848dba, 0x25a9de79, 0x3cb2ef38,
-  0x73f379ff, 0x6ae848be, 0x41c51b7d, 0x58de2a3c,
-  0xf0794f05, 0xe9627e44, 0xc24f2d87, 0xdb541cc6,
-  0x94158a01, 0x8d0ebb40, 0xa623e883, 0xbf38d9c2,
-  0x38a0c50d, 0x21bbf44c, 0x0a96a78f, 0x138d96ce,
-  0x5ccc0009, 0x45d73148, 0x6efa628b, 0x77e153ca,
-  0xbabb5d54, 0xa3a06c15, 0x888d3fd6, 0x91960e97,
-  0xded79850, 0xc7cca911, 0xece1fad2, 0xf5facb93,
-  0x7262d75c, 0x6b79e61d, 0x4054b5de, 0x594f849f,
-  0x160e1258, 0x0f152319, 0x243870da, 0x3d23419b,
-  0x65fd6ba7, 0x7ce65ae6, 0x57cb0925, 0x4ed03864,
-  0x0191aea3, 0x188a9fe2, 0x33a7cc21, 0x2abcfd60,
-  0xad24e1af, 0xb43fd0ee, 0x9f12832d, 0x8609b26c,
-  0xc94824ab, 0xd05315ea, 0xfb7e4629, 0xe2657768,
-  0x2f3f79f6, 0x362448b7, 0x1d091b74, 0x04122a35,
-  0x4b53bcf2, 0x52488db3, 0x7965de70, 0x607eef31,
-  0xe7e6f3fe, 0xfefdc2bf, 0xd5d0917c, 0xcccba03d,
-  0x838a36fa, 0x9a9107bb, 0xb1bc5478, 0xa8a76539,
-  0x3b83984b, 0x2298a90a, 0x09b5fac9, 0x10aecb88,
-  0x5fef5d4f, 0x46f46c0e, 0x6dd93fcd, 0x74c20e8c,
-  0xf35a1243, 0xea412302, 0xc16c70c1, 0xd8774180,
-  0x9736d747, 0x8e2de606, 0xa500b5c5, 0xbc1b8484,
-  0x71418a1a, 0x685abb5b, 0x4377e898, 0x5a6cd9d9,
-  0x152d4f1e, 0x0c367e5f, 0x271b2d9c, 0x3e001cdd,
-  0xb9980012, 0xa0833153, 0x8bae6290, 0x92b553d1,
-  0xddf4c516, 0xc4eff457, 0xefc2a794, 0xf6d996d5,
-  0xae07bce9, 0xb71c8da8, 0x9c31de6b, 0x852aef2a,
-  0xca6b79ed, 0xd37048ac, 0xf85d1b6f, 0xe1462a2e,
-  0x66de36e1, 0x7fc507a0, 0x54e85463, 0x4df36522,
-  0x02b2f3e5, 0x1ba9c2a4, 0x30849167, 0x299fa026,
-  0xe4c5aeb8, 0xfdde9ff9, 0xd6f3cc3a, 0xcfe8fd7b,
-  0x80a96bbc, 0x99b25afd, 0xb29f093e, 0xab84387f,
-  0x2c1c24b0, 0x350715f1, 0x1e2a4632, 0x07317773,
-  0x4870e1b4, 0x516bd0f5, 0x7a468336, 0x635db277,
-  0xcbfad74e, 0xd2e1e60f, 0xf9ccb5cc, 0xe0d7848d,
-  0xaf96124a, 0xb68d230b, 0x9da070c8, 0x84bb4189,
-  0x03235d46, 0x1a386c07, 0x31153fc4, 0x280e0e85,
-  0x674f9842, 0x7e54a903, 0x5579fac0, 0x4c62cb81,
-  0x8138c51f, 0x9823f45e, 0xb30ea79d, 0xaa1596dc,
-  0xe554001b, 0xfc4f315a, 0xd7626299, 0xce7953d8,
-  0x49e14f17, 0x50fa7e56, 0x7bd72d95, 0x62cc1cd4,
-  0x2d8d8a13, 0x3496bb52, 0x1fbbe891, 0x06a0d9d0,
-  0x5e7ef3ec, 0x4765c2ad, 0x6c48916e, 0x7553a02f,
-  0x3a1236e8, 0x230907a9, 0x0824546a, 0x113f652b,
-  0x96a779e4, 0x8fbc48a5, 0xa4911b66, 0xbd8a2a27,
-  0xf2cbbce0, 0xebd08da1, 0xc0fdde62, 0xd9e6ef23,
-  0x14bce1bd, 0x0da7d0fc, 0x268a833f, 0x3f91b27e,
-  0x70d024b9, 0x69cb15f8, 0x42e6463b, 0x5bfd777a,
-  0xdc656bb5, 0xc57e5af4, 0xee530937, 0xf7483876,
-  0xb809aeb1, 0xa1129ff0, 0x8a3fcc33, 0x9324fd72,
-};
-
-unsigned int crc32_table1[256] = 
-{
-  0x00000000, 0x01c26a37, 0x0384d46e, 0x0246be59,
-  0x0709a8dc, 0x06cbc2eb, 0x048d7cb2, 0x054f1685,
-  0x0e1351b8, 0x0fd13b8f, 0x0d9785d6, 0x0c55efe1,
-  0x091af964, 0x08d89353, 0x0a9e2d0a, 0x0b5c473d,
-  0x1c26a370, 0x1de4c947, 0x1fa2771e, 0x1e601d29,
-  0x1b2f0bac, 0x1aed619b, 0x18abdfc2, 0x1969b5f5,
-  0x1235f2c8, 0x13f798ff, 0x11b126a6, 0x10734c91,
-  0x153c5a14, 0x14fe3023, 0x16b88e7a, 0x177ae44d,
-  0x384d46e0, 0x398f2cd7, 0x3bc9928e, 0x3a0bf8b9,
-  0x3f44ee3c, 0x3e86840b, 0x3cc03a52, 0x3d025065,
-  0x365e1758, 0x379c7d6f, 0x35dac336, 0x3418a901,
-  0x3157bf84, 0x3095d5b3, 0x32d36bea, 0x331101dd,
-  0x246be590, 0x25a98fa7, 0x27ef31fe, 0x262d5bc9,
-  0x23624d4c, 0x22a0277b, 0x20e69922, 0x2124f315,
-  0x2a78b428, 0x2bbade1f, 0x29fc6046, 0x283e0a71,
-  0x2d711cf4, 0x2cb376c3, 0x2ef5c89a, 0x2f37a2ad,
-  0x709a8dc0, 0x7158e7f7, 0x731e59ae, 0x72dc3399,
-  0x7793251c, 0x76514f2b, 0x7417f172, 0x75d59b45,
-  0x7e89dc78, 0x7f4bb64f, 0x7d0d0816, 0x7ccf6221,
-  0x798074a4, 0x78421e93, 0x7a04a0ca, 0x7bc6cafd,
-  0x6cbc2eb0, 0x6d7e4487, 0x6f38fade, 0x6efa90e9,
-  0x6bb5866c, 0x6a77ec5b, 0x68315202, 0x69f33835,
-  0x62af7f08, 0x636d153f, 0x612bab66, 0x60e9c151,
-  0x65a6d7d4, 0x6464bde3, 0x662203ba, 0x67e0698d,
-  0x48d7cb20, 0x4915a117, 0x4b531f4e, 0x4a917579,
-  0x4fde63fc, 0x4e1c09cb, 0x4c5ab792, 0x4d98dda5,
-  0x46c49a98, 0x4706f0af, 0x45404ef6, 0x448224c1,
-  0x41cd3244, 0x400f5873, 0x4249e62a, 0x438b8c1d,
-  0x54f16850, 0x55330267, 0x5775bc3e, 0x56b7d609,
-  0x53f8c08c, 0x523aaabb, 0x507c14e2, 0x51be7ed5,
-  0x5ae239e8, 0x5b2053df, 0x5966ed86, 0x58a487b1,
-  0x5deb9134, 0x5c29fb03, 0x5e6f455a, 0x5fad2f6d,
-  0xe1351b80, 0xe0f771b7, 0xe2b1cfee, 0xe373a5d9,
-  0xe63cb35c, 0xe7fed96b, 0xe5b86732, 0xe47a0d05,
-  0xef264a38, 0xeee4200f, 0xeca29e56, 0xed60f461,
-  0xe82fe2e4, 0xe9ed88d3, 0xebab368a, 0xea695cbd,
-  0xfd13b8f0, 0xfcd1d2c7, 0xfe976c9e, 0xff5506a9,
-  0xfa1a102c, 0xfbd87a1b, 0xf99ec442, 0xf85cae75,
-  0xf300e948, 0xf2c2837f, 0xf0843d26, 0xf1465711,
-  0xf4094194, 0xf5cb2ba3, 0xf78d95fa, 0xf64fffcd,
-  0xd9785d60, 0xd8ba3757, 0xdafc890e, 0xdb3ee339,
-  0xde71f5bc, 0xdfb39f8b, 0xddf521d2, 0xdc374be5,
-  0xd76b0cd8, 0xd6a966ef, 0xd4efd8b6, 0xd52db281,
-  0xd062a404, 0xd1a0ce33, 0xd3e6706a, 0xd2241a5d,
-  0xc55efe10, 0xc49c9427, 0xc6da2a7e, 0xc7184049,
-  0xc25756cc, 0xc3953cfb, 0xc1d382a2, 0xc011e895,
-  0xcb4dafa8, 0xca8fc59f, 0xc8c97bc6, 0xc90b11f1,
-  0xcc440774, 0xcd866d43, 0xcfc0d31a, 0xce02b92d,
-  0x91af9640, 0x906dfc77, 0x922b422e, 0x93e92819,
-  0x96a63e9c, 0x976454ab, 0x9522eaf2, 0x94e080c5,
-  0x9fbcc7f8, 0x9e7eadcf, 0x9c381396, 0x9dfa79a1,
-  0x98b56f24, 0x99770513, 0x9b31bb4a, 0x9af3d17d,
-  0x8d893530, 0x8c4b5f07, 0x8e0de15e, 0x8fcf8b69,
-  0x8a809dec, 0x8b42f7db, 0x89044982, 0x88c623b5,
-  0x839a6488, 0x82580ebf, 0x801eb0e6, 0x81dcdad1,
-  0x8493cc54, 0x8551a663, 0x8717183a, 0x86d5720d,
-  0xa9e2d0a0, 0xa820ba97, 0xaa6604ce, 0xaba46ef9,
-  0xaeeb787c, 0xaf29124b, 0xad6fac12, 0xacadc625,
-  0xa7f18118, 0xa633eb2f, 0xa4755576, 0xa5b73f41,
-  0xa0f829c4, 0xa13a43f3, 0xa37cfdaa, 0xa2be979d,
-  0xb5c473d0, 0xb40619e7, 0xb640a7be, 0xb782cd89,
-  0xb2cddb0c, 0xb30fb13b, 0xb1490f62, 0xb08b6555,
-  0xbbd72268, 0xba15485f, 0xb853f606, 0xb9919c31,
-  0xbcde8ab4, 0xbd1ce083, 0xbf5a5eda, 0xbe9834ed,
-};
-
-unsigned int crc32_table0[256] = {
-  0x00000000, 0xb8bc6765, 0xaa09c88b, 0x12b5afee,
-  0x8f629757, 0x37def032, 0x256b5fdc, 0x9dd738b9,
-  0xc5b428ef, 0x7d084f8a, 0x6fbde064, 0xd7018701,
-  0x4ad6bfb8, 0xf26ad8dd, 0xe0df7733, 0x58631056,
-  0x5019579f, 0xe8a530fa, 0xfa109f14, 0x42acf871,
-  0xdf7bc0c8, 0x67c7a7ad, 0x75720843, 0xcdce6f26,
-  0x95ad7f70, 0x2d111815, 0x3fa4b7fb, 0x8718d09e,
-  0x1acfe827, 0xa2738f42, 0xb0c620ac, 0x087a47c9,
-  0xa032af3e, 0x188ec85b, 0x0a3b67b5, 0xb28700d0,
-  0x2f503869, 0x97ec5f0c, 0x8559f0e2, 0x3de59787,
-  0x658687d1, 0xdd3ae0b4, 0xcf8f4f5a, 0x7733283f,
-  0xeae41086, 0x525877e3, 0x40edd80d, 0xf851bf68,
-  0xf02bf8a1, 0x48979fc4, 0x5a22302a, 0xe29e574f,
-  0x7f496ff6, 0xc7f50893, 0xd540a77d, 0x6dfcc018,
-  0x359fd04e, 0x8d23b72b, 0x9f9618c5, 0x272a7fa0,
-  0xbafd4719, 0x0241207c, 0x10f48f92, 0xa848e8f7,
-  0x9b14583d, 0x23a83f58, 0x311d90b6, 0x89a1f7d3,
-  0x1476cf6a, 0xaccaa80f, 0xbe7f07e1, 0x06c36084,
-  0x5ea070d2, 0xe61c17b7, 0xf4a9b859, 0x4c15df3c,
-  0xd1c2e785, 0x697e80e0, 0x7bcb2f0e, 0xc377486b,
-  0xcb0d0fa2, 0x73b168c7, 0x6104c729, 0xd9b8a04c,
-  0x446f98f5, 0xfcd3ff90, 0xee66507e, 0x56da371b,
-  0x0eb9274d, 0xb6054028, 0xa4b0efc6, 0x1c0c88a3,
-  0x81dbb01a, 0x3967d77f, 0x2bd27891, 0x936e1ff4,
-  0x3b26f703, 0x839a9066, 0x912f3f88, 0x299358ed,
-  0xb4446054, 0x0cf80731, 0x1e4da8df, 0xa6f1cfba,
-  0xfe92dfec, 0x462eb889, 0x549b1767, 0xec277002,
-  0x71f048bb, 0xc94c2fde, 0xdbf98030, 0x6345e755,
-  0x6b3fa09c, 0xd383c7f9, 0xc1366817, 0x798a0f72,
-  0xe45d37cb, 0x5ce150ae, 0x4e54ff40, 0xf6e89825,
-  0xae8b8873, 0x1637ef16, 0x048240f8, 0xbc3e279d,
-  0x21e91f24, 0x99557841, 0x8be0d7af, 0x335cb0ca,
-  0xed59b63b, 0x55e5d15e, 0x47507eb0, 0xffec19d5,
-  0x623b216c, 0xda874609, 0xc832e9e7, 0x708e8e82,
-  0x28ed9ed4, 0x9051f9b1, 0x82e4565f, 0x3a58313a,
-  0xa78f0983, 0x1f336ee6, 0x0d86c108, 0xb53aa66d,
-  0xbd40e1a4, 0x05fc86c1, 0x1749292f, 0xaff54e4a,
-  0x322276f3, 0x8a9e1196, 0x982bbe78, 0x2097d91d,
-  0x78f4c94b, 0xc048ae2e, 0xd2fd01c0, 0x6a4166a5,
-  0xf7965e1c, 0x4f2a3979, 0x5d9f9697, 0xe523f1f2,
-  0x4d6b1905, 0xf5d77e60, 0xe762d18e, 0x5fdeb6eb,
-  0xc2098e52, 0x7ab5e937, 0x680046d9, 0xd0bc21bc,
-  0x88df31ea, 0x3063568f, 0x22d6f961, 0x9a6a9e04,
-  0x07bda6bd, 0xbf01c1d8, 0xadb46e36, 0x15080953,
-  0x1d724e9a, 0xa5ce29ff, 0xb77b8611, 0x0fc7e174,
-  0x9210d9cd, 0x2aacbea8, 0x38191146, 0x80a57623,
-  0xd8c66675, 0x607a0110, 0x72cfaefe, 0xca73c99b,
-  0x57a4f122, 0xef189647, 0xfdad39a9, 0x45115ecc,
-  0x764dee06, 0xcef18963, 0xdc44268d, 0x64f841e8,
-  0xf92f7951, 0x41931e34, 0x5326b1da, 0xeb9ad6bf,
-  0xb3f9c6e9, 0x0b45a18c, 0x19f00e62, 0xa14c6907,
-  0x3c9b51be, 0x842736db, 0x96929935, 0x2e2efe50,
-  0x2654b999, 0x9ee8defc, 0x8c5d7112, 0x34e11677,
-  0xa9362ece, 0x118a49ab, 0x033fe645, 0xbb838120,
-  0xe3e09176, 0x5b5cf613, 0x49e959fd, 0xf1553e98,
-  0x6c820621, 0xd43e6144, 0xc68bceaa, 0x7e37a9cf,
-  0xd67f4138, 0x6ec3265d, 0x7c7689b3, 0xc4caeed6,
-  0x591dd66f, 0xe1a1b10a, 0xf3141ee4, 0x4ba87981,
-  0x13cb69d7, 0xab770eb2, 0xb9c2a15c, 0x017ec639,
-  0x9ca9fe80, 0x241599e5, 0x36a0360b, 0x8e1c516e,
-  0x866616a7, 0x3eda71c2, 0x2c6fde2c, 0x94d3b949,
-  0x090481f0, 0xb1b8e695, 0xa30d497b, 0x1bb12e1e,
-  0x43d23e48, 0xfb6e592d, 0xe9dbf6c3, 0x516791a6,
-  0xccb0a91f, 0x740cce7a, 0x66b96194, 0xde0506f1,
-};
-
-static unsigned int crc32_partial (const void *data, int len, unsigned crc) {
-  const int *p = (const int *) data;
-  int x;
-#define DO_ONE(v) crc ^= v; crc = crc32_table0[crc & 0xff] ^ crc32_table1[(crc & 0xff00) >> 8] ^ crc32_table2[(crc & 0xff0000) >> 16] ^ crc32_table[crc >> 24];
-#define DO_FOUR(p) DO_ONE((p)[0]); DO_ONE((p)[1]); DO_ONE((p)[2]); DO_ONE((p)[3]);
-
-  for (x = (len >> 5); x > 0; x--) {
-    DO_FOUR (p);
-    DO_FOUR (p + 4);
-    p += 8;
-  }
-  if (len & 16) {
-    DO_FOUR (p);
-    p += 4;
-  }
-  if (len & 8) {
-    DO_ONE (p[0]);
-    DO_ONE (p[1]);
-    p += 2;
-  }
-  if (len & 4) {
-    DO_ONE (*p++);
-  }
-  /*
-  for (x = (len >> 2) & 7; x > 0; x--) {
-    DO_ONE (*p++);
-  }
-  */
-#undef DO_ONE
-#undef DO_FOUR
-  const char *q = (const char *) p;
-  if (len & 2) {
-    crc = crc32_table[(crc ^ q[0]) & 0xff] ^ (crc >> 8);
-    crc = crc32_table[(crc ^ q[1]) & 0xff] ^ (crc >> 8);
-    q += 2;
-  }
-  if (len & 1) {
-    crc = crc32_table[(crc ^ *q++) & 0xff] ^ (crc >> 8);
-  }
-  return crc;
-}
-
-unsigned int compute_crc32 (const void *data, int len) {
-  return crc32_partial (data, len, -1) ^ -1;
-}
-
diff --git a/third-party/td/td/td/generate/tl-parser/crc32.h b/third-party/td/td/td/generate/tl-parser/crc32.h
deleted file mode 100644
index b461784b31..0000000000
--- a/third-party/td/td/td/generate/tl-parser/crc32.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
-    This file is part of VK/KittenPHP-DB-Engine Library.
-
-    VK/KittenPHP-DB-Engine Library is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Lesser General Public License as published by
-    the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
-
-    VK/KittenPHP-DB-Engine Library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Lesser General Public License for more details.
-
-    You should have received a copy of the GNU Lesser General Public License
-    along with VK/KittenPHP-DB-Engine Library.  If not, see <http://www.gnu.org/licenses/>.
-
-    Copyright 2009-2012 Vkontakte Ltd
-              2009-2012 Nikolai Durov
-              2009-2012 Andrei Lopatin
-                   2012 Anton Maydell
-*/
-
-#ifndef __CRC32_H__
-#define __CRC32_H__
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-unsigned int compute_crc32 (const void *data, int len);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/third-party/td/td/td/generate/tl-parser/portable_endian.h b/third-party/td/td/td/generate/tl-parser/portable_endian.h
deleted file mode 100644
index a815547e39..0000000000
--- a/third-party/td/td/td/generate/tl-parser/portable_endian.h
+++ /dev/null
@@ -1,88 +0,0 @@
-// "License": Public Domain
-// I, Mathias Panzenböck, place this file hereby into the public domain. Use it at your own risk for whatever you like.
-// In case there are jurisdictions that don't support putting things in the public domain you can also consider it to
-// be "dual licensed" under the BSD, MIT and Apache licenses, if you want to. This code is trivial anyway. Consider it
-// an example on how to get the endian conversion functions on different platforms.
-
-/* Originally cloned from https://gist.github.com/PkmX/63dd23f28ba885be53a5
- * Commit was: 1eca2ab34f2301b9641aa73d1016b951fff3fc39
- * Re-published at https://github.com/BenWiederhake/portable-endian.h to provide a means to submit patches and report issues. */
-
-#ifndef PORTABLE_ENDIAN_H__
-#define PORTABLE_ENDIAN_H__
-
-#if (defined(_WIN16) || defined(_WIN32) || defined(_WIN64)) && !defined(__WINDOWS__)
-
-#	define __WINDOWS__
-
-#endif
-
-#if defined(__linux__) || defined(__CYGWIN__) || defined(__sun)
-
-#	include <endian.h>
-
-#elif defined(__APPLE__)
-
-#	include <libkern/OSByteOrder.h>
-
-#	define htobe32(x) OSSwapHostToBigInt32(x)
-#	define htole32(x) OSSwapHostToLittleInt32(x)
- 
-#	define htobe64(x) OSSwapHostToBigInt64(x)
-#	define htole64(x) OSSwapHostToLittleInt64(x)
-
-#	define __BYTE_ORDER    BYTE_ORDER
-#	define __BIG_ENDIAN    BIG_ENDIAN
-#	define __LITTLE_ENDIAN LITTLE_ENDIAN
-#	define __PDP_ENDIAN    PDP_ENDIAN
-
-#elif defined(__OpenBSD__)
-
-#	include <sys/endian.h>
-
-#elif defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
-
-#	include <sys/endian.h>
-
-#elif defined(__WINDOWS__)
-
-#	include <winsock2.h>
-#ifdef __MINGW32__
-#	include <sys/param.h>
-#endif
-
-#	if BYTE_ORDER == LITTLE_ENDIAN
-
-#		define htobe32(x) htonl(x)
-#		define htole32(x) (x)
- 
-#		define htobe64(x) htonll(x)
-#		define htole64(x) (x)
-
-#	elif BYTE_ORDER == BIG_ENDIAN
-
-		/* that would be xbox 360 */
-#		define htobe32(x) (x)
-#		define htole32(x) __builtin_bswap32(x)
- 
-#		define htobe64(x) (x)
-#		define htole64(x) __builtin_bswap64(x)
-
-#	else
-
-#		error byte order not supported
-
-#	endif
-
-#	define __BYTE_ORDER    BYTE_ORDER
-#	define __BIG_ENDIAN    BIG_ENDIAN
-#	define __LITTLE_ENDIAN LITTLE_ENDIAN
-#	define __PDP_ENDIAN    PDP_ENDIAN
-
-#else
-
-#	error platform not supported
-
-#endif
-
-#endif
diff --git a/third-party/td/td/td/generate/tl-parser/tl-parser-tree.h b/third-party/td/td/td/generate/tl-parser/tl-parser-tree.h
deleted file mode 100644
index fba7c67521..0000000000
--- a/third-party/td/td/td/generate/tl-parser/tl-parser-tree.h
+++ /dev/null
@@ -1,178 +0,0 @@
-/* 
-    This file is part of tgl-library
-
-    This library is free software; you can redistribute it and/or
-    modify it under the terms of the GNU Lesser General Public
-    License as published by the Free Software Foundation; either
-    version 2.1 of the License, or (at your option) any later version.
-
-    This library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-    Lesser General Public License for more details.
-
-    You should have received a copy of the GNU Lesser General Public
-    License along with this library; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-
-    Copyright Vitaly Valtman 2013-2014
-*/
-#ifndef __TREE_H__
-#define __TREE_H__
-#include <stdio.h>
-
-#include <memory.h>
-#include <assert.h>
-
-#pragma pack(push,4)
-#define DEFINE_TREE(X_NAME, X_TYPE, X_CMP, X_UNSET) \
-struct tree_ ## X_NAME { \
-  struct tree_ ## X_NAME *left, *right;\
-  X_TYPE x;\
-  int y;\
-};\
-\
-static struct tree_ ## X_NAME *new_tree_node_ ## X_NAME (X_TYPE x, int y) {\
-  struct tree_ ## X_NAME *T = malloc (sizeof (*T));\
-  T->x = x;\
-  T->y = y;\
-  T->left = T->right = 0;\
-  return T;\
-}\
-\
-static void delete_tree_node_ ## X_NAME (struct tree_ ## X_NAME *T) {\
-  free (T);\
-}\
-\
-static void tree_split_ ## X_NAME (struct tree_ ## X_NAME *T, X_TYPE x, struct tree_ ## X_NAME **L, struct tree_ ## X_NAME **R) {\
-  if (!T) {\
-    *L = *R = 0;\
-  } else {\
-    int c = X_CMP (x, T->x);\
-    if (c < 0) {\
-      tree_split_ ## X_NAME (T->left, x, L, &T->left);\
-      *R = T;\
-    } else {\
-      tree_split_ ## X_NAME (T->right, x, &T->right, R);\
-      *L = T;\
-    }\
-  }\
-}\
-\
-static struct tree_ ## X_NAME *tree_insert_ ## X_NAME (struct tree_ ## X_NAME *T, X_TYPE x, int y) __attribute__ ((warn_unused_result,unused));\
-static struct tree_ ## X_NAME *tree_insert_ ## X_NAME (struct tree_ ## X_NAME *T, X_TYPE x, int y) {\
-  if (!T) {\
-    return new_tree_node_ ## X_NAME  (x, y);\
-  } else {\
-    if (y > T->y) {\
-      struct tree_ ## X_NAME *N = new_tree_node_ ## X_NAME (x, y);\
-      tree_split_ ## X_NAME (T, x, &N->left, &N->right);\
-      return N;\
-    } else {\
-      int c = X_CMP (x, T->x);\
-      assert (c);\
-      if (c < 0) { \
-        T->left = tree_insert_ ## X_NAME (T->left, x, y);\
-      } else { \
-        T->right = tree_insert_ ## X_NAME (T->right, x, y);\
-      } \
-      return T; \
-    }\
-  }\
-}\
-\
-static struct tree_ ## X_NAME *tree_merge_ ## X_NAME (struct tree_ ## X_NAME *L, struct tree_ ## X_NAME *R) {\
-  if (!L || !R) {\
-    return L ? L : R;\
-  } else {\
-    if (L->y > R->y) {\
-      L->right = tree_merge_ ## X_NAME (L->right, R);\
-      return L;\
-    } else {\
-      R->left = tree_merge_ ## X_NAME (L, R->left);\
-      return R;\
-    }\
-  }\
-}\
-\
-static struct tree_ ## X_NAME *tree_delete_ ## X_NAME (struct tree_ ## X_NAME *T, X_TYPE x) __attribute__ ((warn_unused_result,unused));\
-static struct tree_ ## X_NAME *tree_delete_ ## X_NAME (struct tree_ ## X_NAME *T, X_TYPE x) {\
-  assert (T);\
-  int c = X_CMP (x, T->x);\
-  if (!c) {\
-    struct tree_ ## X_NAME *N = tree_merge_ ## X_NAME (T->left, T->right);\
-    delete_tree_node_ ## X_NAME (T);\
-    return N;\
-  } else {\
-    if (c < 0) { \
-      T->left = tree_delete_ ## X_NAME (T->left, x); \
-    } else { \
-      T->right = tree_delete_ ## X_NAME (T->right, x); \
-    } \
-    return T; \
-  }\
-}\
-\
-static X_TYPE tree_get_min_ ## X_NAME (struct tree_ ## X_NAME *t) __attribute__ ((unused));\
-static X_TYPE tree_get_min_ ## X_NAME (struct tree_ ## X_NAME *T) {\
-  if (!T) { return X_UNSET; } \
-  while (T->left) { T = T->left; }\
-  return T->x; \
-} \
-\
-static X_TYPE tree_lookup_ ## X_NAME (struct tree_ ## X_NAME *T, X_TYPE x) __attribute__ ((unused));\
-static X_TYPE tree_lookup_ ## X_NAME (struct tree_ ## X_NAME *T, X_TYPE x) {\
-  int c;\
-  while (T && (c = X_CMP (x, T->x))) {\
-    T = (c < 0 ? T->left : T->right);\
-  }\
-  return T ? T->x : X_UNSET;\
-}\
-\
-static void tree_act_ ## X_NAME (struct tree_ ## X_NAME *T, void (*act)(X_TYPE)) __attribute__ ((unused));\
-static void tree_act_ ## X_NAME (struct tree_ ## X_NAME *T, void (*act)(X_TYPE)) {\
-  if (!T) { return; } \
-  tree_act_ ## X_NAME (T->left, act); \
-  act (T->x); \
-  tree_act_ ## X_NAME (T->right, act); \
-}\
-\
-static void tree_act_ex_ ## X_NAME (struct tree_ ## X_NAME *T, void (*act)(X_TYPE, void *), void *extra) __attribute__ ((unused));\
-static void tree_act_ex_ ## X_NAME (struct tree_ ## X_NAME *T, void (*act)(X_TYPE, void *), void *extra) {\
-  if (!T) { return; } \
-  tree_act_ex_ ## X_NAME (T->left, act, extra); \
-  act (T->x, extra); \
-  tree_act_ex_ ## X_NAME (T->right, act, extra); \
-}\
-\
-static int tree_count_ ## X_NAME (struct tree_ ## X_NAME *T) __attribute__ ((unused));\
-static int tree_count_ ## X_NAME (struct tree_ ## X_NAME *T) { \
-  if (!T) { return 0; }\
-  return 1 + tree_count_ ## X_NAME (T->left) + tree_count_ ## X_NAME (T->right); \
-}\
-static void tree_check_ ## X_NAME (struct tree_ ## X_NAME *T) __attribute__ ((unused));\
-static void tree_check_ ## X_NAME (struct tree_ ## X_NAME *T) { \
-  if (!T) { return; }\
-  if (T->left) { \
-    assert (T->left->y <= T->y);\
-    assert (X_CMP (T->left->x, T->x) < 0); \
-  }\
-  if (T->right) { \
-    assert (T->right->y <= T->y);\
-    assert (X_CMP (T->right->x, T->x) > 0); \
-  }\
-  tree_check_ ## X_NAME (T->left); \
-  tree_check_ ## X_NAME (T->right); \
-}\
-static struct tree_ ## X_NAME *tree_clear_ ## X_NAME (struct tree_ ## X_NAME *T) __attribute__ ((unused));\
-static struct tree_ ## X_NAME *tree_clear_ ## X_NAME (struct tree_ ## X_NAME *T) { \
-  if (!T) { return 0; }\
-  tree_clear_ ## X_NAME (T->left); \
-  tree_clear_ ## X_NAME (T->right); \
-  delete_tree_node_ ## X_NAME (T); \
-  return 0; \
-} \
-
-#define int_cmp(a,b) ((a) - (b))
-#pragma pack(pop)
-#endif
diff --git a/third-party/td/td/td/generate/tl-parser/tl-parser.c b/third-party/td/td/td/generate/tl-parser/tl-parser.c
deleted file mode 100644
index 66276ba012..0000000000
--- a/third-party/td/td/td/generate/tl-parser/tl-parser.c
+++ /dev/null
@@ -1,3078 +0,0 @@
-/*
-    This file is part of tl-parser 
-
-    tl-parser is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
-
-    tl-parser is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this tl-parser.  If not, see <http://www.gnu.org/licenses/>.
-
-    Copyright Vitaly Valtman 2014
-
-    It is derivative work of VK/KittenPHP-DB-Engine (https://github.com/vk-com/kphp-kdb/)
-    Copyright 2012-2013 Vkontakte Ltd
-              2012-2013 Vitaliy Valtman
-
-*/
-
-#define _FILE_OFFSET_BITS 64
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <string.h>
-#include <time.h>
-#include "portable_endian.h"
-#include "tl-parser-tree.h"
-#include "tl-parser.h"
-#include "crc32.h"
-#include "tl-tl.h"
-
-extern int verbosity;
-extern int schema_version;
-extern int output_expressions;
-
-
-int total_types_num;
-int total_constructors_num;
-int total_functions_num;
-
-
-/*char *tstrdup (const char *s) {
-  assert (s);
-  char *r = talloc (strlen (s) + 1);
-  memcpy (r, s, strlen (s) + 1);
-  return r;
-}*/
-
-#define talloc(a) malloc(a)
-#define tfree(a,b) free (a)
-#define talloc0(a) calloc(a,1)
-#define tstrdup(a) strdup(a)
-
-typedef char error_int_must_be_4_byte[(sizeof (int) == 4) ? 1 : -1];
-typedef char error_long_long_must_be_8_byte[(sizeof (long long) == 8) ? 1 : -1];
-
-char curch;
-struct parse parse;
-
-struct tree *tree;
-
-struct tree *tree_alloc (void) {
-  struct tree *T = talloc (sizeof (*T));
-  assert (T);
-  memset (T, 0, sizeof (*T));
-  return T;
-}
-
-void tree_add_child (struct tree *P, struct tree *C) {
-  if (P->nc == P->size) {
-    void **t = talloc (sizeof (void *) * (++P->size));
-    memcpy (t, P->c, sizeof (void *) * (P->size - 1));
-    if (P->c) {
-      tfree (P->c, sizeof (void *) * (P->size - 1));
-    }
-    P->c = (void *)t;
-    assert (P->c);
-  }
-  P->c[P->nc ++] = C;
-}
-
-void tree_delete (struct tree *T) {
-  assert (T);
-  int i;
-  for (i = 0; i < T->nc; i++) {
-    assert (T->c[i]);
-    tree_delete (T->c[i]);
-  }
-  if (T->c) {
-    tfree (T->c, sizeof (void *) * T->nc);
-  }
-  tfree (T, sizeof (*T));
-}
-
-void tree_del_child (struct tree *P) {
-  assert (P->nc);
-  tree_delete (P->c[--P->nc]);
-}
-
-
-char nextch (void) {
-  if (parse.pos < parse.len - 1) {
-    curch = parse.text[++parse.pos];
-  } else {
-    curch = 0;
-  }
-  if (curch == 10) {
-    parse.line ++;
-    parse.line_pos = 0;
-  } else {
-    if (curch) {
-      parse.line_pos ++;
-    }
-  }
-  return curch;
-}
-
-
-struct parse save_parse (void) {
-  return parse;
-}
-
-void load_parse (struct parse _parse) {
-  parse = _parse;
-  curch = parse.pos > parse.len ? 0:  parse.text[parse.pos] ;
-}
-
-int is_whitespace (char c) {
-  return (c <= 32);
-}
-
-int is_uletter (char c) {
-  return (c >= 'A' && c <= 'Z');
-}
-
-int is_lletter (char c) {
-  return (c >= 'a' && c <= 'z');
-}
-
-int is_letter (char c) {
-  return is_uletter (c) || is_lletter (c);
-}
-
-int is_digit (char c) {
-  return (c >= '0' && c <= '9');
-}
-
-int is_hexdigit (char c) {
-  return is_digit (c) || (c >= 'a' && c <= 'f');
-}
-
-int is_ident_char (char c) {
-  return is_digit (c) || is_letter (c) || c == '_';
-}
-
-int last_error_pos;
-int last_error_line;
-int last_error_line_pos;
-char *last_error;
-
-void parse_error (const char *e) {
-  if (parse.pos > last_error_pos) {
-    last_error_pos = parse.pos;
-    last_error_line = parse.line;
-    last_error_line_pos = parse.line_pos;
-    if (last_error) {
-      tfree (last_error, strlen (last_error) + 1);
-    }
-    last_error = tstrdup (e);
-  }
-}
-
-void tl_print_parse_error (void) {
-  fprintf (stderr, "Error near line %d pos %d: `%s`\n", last_error_line + 1, last_error_line_pos + 1, last_error);
-}
-
-char *parse_lex (void) {
-  while (1) {   
-    while (curch && is_whitespace (curch)) { nextch (); }
-    if (curch == '/' && nextch () == '/') {
-      while (nextch () != 10);
-      nextch ();
-    } else {
-      break;
-    }
-  }
-  if (!curch) {
-    parse.lex.len = 0;
-    parse.lex.type = lex_eof;
-    return (parse.lex.ptr = 0);
-  }
-  char *p = parse.text + parse.pos;
-  parse.lex.flags = 0;
-  switch (curch) {
-  case '-':
-    if (nextch () != '-' || nextch () != '-') {
-      parse_error ("Can not parse triple minus");
-      parse.lex.type = lex_error;
-      return (parse.lex.ptr = (void *)-1);
-    } else {
-      parse.lex.len = 3;
-      parse.lex.type = lex_triple_minus;
-      nextch ();
-      return (parse.lex.ptr = p);
-    }
-  case ':':
-  case ';':
-  case '(':
-  case ')':
-  case '[':
-  case ']':
-  case '{':
-  case '}':
-  case '=':
-  case '#':
-  case '?':
-  case '%':
-  case '<':
-  case '>':
-  case '+':
-  case ',':
-  case '*':
-  case '_':
-  case '!':
-  case '.':
-    nextch ();
-    parse.lex.len = 1;
-    parse.lex.type = lex_char;   
-    return (parse.lex.ptr = p);
-  case 'a':
-  case 'b':
-  case 'c':
-  case 'd':
-  case 'e':
-  case 'f':
-  case 'g':
-  case 'h':
-  case 'i':
-  case 'j':
-  case 'k':
-  case 'l':
-  case 'm':
-  case 'n':
-  case 'o':
-  case 'p':
-  case 'q':
-  case 'r':
-  case 's':
-  case 't':
-  case 'u':
-  case 'v':
-  case 'w':
-  case 'x':
-  case 'y':
-  case 'z':
-  case 'A':
-  case 'B':
-  case 'C':
-  case 'D':
-  case 'E':
-  case 'F':
-  case 'G':
-  case 'H':
-  case 'I':
-  case 'J':
-  case 'K':
-  case 'L':
-  case 'M':
-  case 'N':
-  case 'O':
-  case 'P':
-  case 'Q':
-  case 'R':
-  case 'S':
-  case 'T':
-  case 'U':
-  case 'V':
-  case 'W':
-  case 'X':
-  case 'Y':
-  case 'Z':
-    parse.lex.flags = 0;
-    if (is_uletter (curch)) {
-      while (is_ident_char (nextch ()));
-      parse.lex.len = parse.text + parse.pos - p;
-      parse.lex.ptr = p;
-      if (parse.lex.len == 5 && !memcmp (parse.lex.ptr, "Final", 5)) {
-        parse.lex.type = lex_final;
-      } else if (parse.lex.len == 3 && !memcmp (parse.lex.ptr, "New", 3)) {
-        parse.lex.type = lex_new;
-      } else if (parse.lex.len == 5 && !memcmp (parse.lex.ptr, "Empty", 5)) {
-        parse.lex.type = lex_empty;
-      } else {
-        parse.lex.type = lex_uc_ident;
-      }
-      return (parse.lex.ptr = p);
-    }
-    while (is_ident_char (nextch ()));
-    if (curch == '.' && !is_letter (parse.text[parse.pos + 1])) {
-      parse.lex.len = parse.text + parse.pos - p;
-      parse.lex.type = lex_lc_ident;
-      return (parse.lex.ptr = p);
-    }
-    while (curch == '.') {
-      parse.lex.flags |= 1;
-      nextch ();
-      if (is_uletter (curch)) {
-        while (is_ident_char (nextch ()));
-        parse.lex.len = parse.text + parse.pos - p;
-        parse.lex.type = lex_uc_ident;
-        return (parse.lex.ptr = p);
-      }
-      if (is_lletter (curch)) {
-        while (is_ident_char (nextch ()));
-      } else {
-        parse_error ("Expected letter");
-        parse.lex.type = lex_error;
-        return (parse.lex.ptr = (void *)-1);
-      }
-    }
-    if (curch == '#') {
-      parse.lex.flags |= 2;
-      int i;
-      int ok = 1;
-      for (i = 0; i < 8; i++) {
-        if (!is_hexdigit (nextch())) {
-          if (curch ==  ' ' && i >= 5) { 
-            ok = 2;
-            break;
-          } else {                     
-            parse_error ("Hex digit expected");
-            parse.lex.type = lex_error;
-            return (parse.lex.ptr = (void *)-1);
-          }
-        }
-      }
-      if (ok == 1) {
-        nextch ();
-      }
-    }
-    parse.lex.len = parse.text + parse.pos - p;
-    parse.lex.type = lex_lc_ident;
-    return (parse.lex.ptr = p);
-  case '0':
-  case '1':
-  case '2':
-  case '3':
-  case '4':
-  case '5':
-  case '6':
-  case '7':
-  case '8':
-  case '9':
-    while (is_digit (nextch ()));
-    parse.lex.len = parse.text + parse.pos - p;
-    parse.lex.type = lex_num;
-    return (parse.lex.ptr = p);
-  default:
-    parse_error ("Unknown lexem");
-    parse.lex.type = lex_error;
-    return (parse.lex.ptr = (void *)-1);
-  }
- 
-}
-
-int expect (char *s) {
-  if (!parse.lex.ptr || parse.lex.ptr == (void *)-1 || parse.lex.type == lex_error || parse.lex.type == lex_none || parse.lex.len != (int)strlen (s) || memcmp (s, parse.lex.ptr, parse.lex.len)) {
-    static char buf[1000];
-    sprintf (buf, "Expected %s", s);
-    parse_error (buf);
-    return -1;
-  } else {
-    parse_lex ();
-  }
-  return 1;
-}
-
-struct parse *tl_init_parse_file (const char *fname) {
-  FILE *f = fopen (fname, "rb");
-  if (f == NULL) {
-    fprintf (stderr, "Failed to open the input file.\n");
-    return NULL;
-  }
-  if (fseek (f, 0, SEEK_END) != 0) {
-    fprintf (stderr, "Can't seek to the end of the input file.\n");
-    return NULL;
-  }
-  long size = ftell (f);
-  if (size <= 0 || size > INT_MAX) {
-    fprintf (stderr, "Size is %ld. Too small or too big.\n", size);
-    return NULL;
-  }
-  fseek (f, 0, SEEK_SET);
-
-  static struct parse save;
-  save.text = talloc ((size_t)size);
-  save.len = fread (save.text, 1, (size_t)size, f);
-  assert (save.len == size);
-  fclose (f);
-  save.pos = 0;
-  save.line = 0;
-  save.line_pos = 0;
-  save.lex.ptr = save.text;
-  save.lex.len = 0;
-  save.lex.type = lex_none;
-  return &save;
-}
-
-#define PARSE_INIT(_type) struct parse save = save_parse (); struct tree *T = tree_alloc (); T->type = (_type); T->lex_line = parse.line; T->lex_line_pos = parse.line_pos; struct tree *S __attribute__ ((unused));
-#define PARSE_FAIL load_parse (save); tree_delete (T); return 0;
-#define PARSE_OK return T;
-#define PARSE_TRY_PES(x) if (!(S = x ())) { PARSE_FAIL; } { tree_add_child (T, S); }
-#define PARSE_TRY_OPT(x) if ((S = x ())) { tree_add_child (T, S); PARSE_OK }
-#define PARSE_TRY(x) S = x ();
-#define PARSE_ADD(_type) S = tree_alloc (); S->type = _type; tree_add_child (T, S);
-#define EXPECT(s) if (expect (s) < 0) { PARSE_FAIL; }
-#define LEX_CHAR(c) (parse.lex.type == lex_char && *parse.lex.ptr == c)
-struct tree *parse_args (void);
-struct tree *parse_expr (void);
-
-struct tree *parse_boxed_type_ident (void) {
-  PARSE_INIT (type_boxed_type_ident);
-  if (parse.lex.type != lex_uc_ident) {
-    parse_error ("Can not parse boxed type");
-    PARSE_FAIL;
-  } else {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  }
-}
-
-struct tree *parse_full_combinator_id (void) {
-  PARSE_INIT (type_full_combinator_id);
-  if (parse.lex.type == lex_lc_ident || LEX_CHAR('_')) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else {
-    parse_error ("Can not parse full combinator id");
-    PARSE_FAIL;
-  } 
-}
-
-struct tree *parse_combinator_id (void) {
-  PARSE_INIT (type_combinator_id);
-  if (parse.lex.type == lex_lc_ident && !(parse.lex.flags & 2)) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else {
-    parse_error ("Can not parse combinator id");
-    PARSE_FAIL;
-  } 
-}
-
-struct tree *parse_var_ident (void) {
-  PARSE_INIT (type_var_ident);
-  if ((parse.lex.type == lex_lc_ident || parse.lex.type == lex_uc_ident) && !(parse.lex.flags & 3)) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else {
-    parse_error ("Can not parse var ident");
-    PARSE_FAIL;
-  }
-}
-
-struct tree *parse_var_ident_opt (void) {
-  PARSE_INIT (type_var_ident_opt);
-  if ((parse.lex.type == lex_lc_ident || parse.lex.type == lex_uc_ident)&& !(parse.lex.flags & 3)) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else if (LEX_CHAR ('_')) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else {
-    parse_error ("Can not parse var ident opt");
-    PARSE_FAIL;
-  }
-}
-
-struct tree *parse_nat_const (void) {
-  PARSE_INIT (type_nat_const);
-  if (parse.lex.type == lex_num) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else {
-    parse_error ("Can not parse nat const");
-    PARSE_FAIL;
-  }
-}
-
-struct tree *parse_type_ident (void) {
-  PARSE_INIT (type_type_ident);
-  if (parse.lex.type == lex_uc_ident && !(parse.lex.flags & 2)) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else if (parse.lex.type == lex_lc_ident && !(parse.lex.flags & 2)) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else if (LEX_CHAR ('#')) {
-    T->text = parse.lex.ptr;
-    T->len = parse.lex.len;
-    T->flags = parse.lex.flags;
-    parse_lex ();
-    PARSE_OK;
-  } else {
-    parse_error ("Can not parse type ident");
-    PARSE_FAIL;
-  }
-}
-
-struct tree *parse_term (void) {
-  PARSE_INIT (type_term);
-  while (LEX_CHAR ('%')) {
-    EXPECT ("%")
-    PARSE_ADD (type_percent);
-  }
-  if (LEX_CHAR ('(')) {
-    EXPECT ("(");
-    PARSE_TRY_PES (parse_expr);
-    EXPECT (")");
-    PARSE_OK;
-  }
-  PARSE_TRY (parse_type_ident);
-  if (S) {
-    tree_add_child (T, S);
-    if (LEX_CHAR ('<')) {
-      EXPECT ("<");
-      while (1) {
-        PARSE_TRY_PES (parse_expr);
-        if (LEX_CHAR ('>')) { break; }
-        EXPECT (",");
-      }
-      EXPECT (">");
-    }
-    PARSE_OK;
-  }
-  PARSE_TRY_OPT (parse_type_ident);
-  PARSE_TRY_OPT (parse_var_ident);
-  PARSE_TRY_OPT (parse_nat_const);
-  PARSE_FAIL;
-}
-
-struct tree *parse_nat_term (void) {
-  PARSE_INIT (type_nat_term);
-  PARSE_TRY_PES (parse_term);
-  PARSE_OK;
-}
-
-struct tree *parse_subexpr (void) {
-  PARSE_INIT (type_subexpr);
-  int was_term = 0;
-  int cc = 0;
-
-  while (1) {
-    PARSE_TRY (parse_nat_const);
-    if (S) {
-      tree_add_child (T, S);
-    } else if (!was_term) {
-      was_term = 1;
-      PARSE_TRY (parse_term);
-      if (S) {
-        tree_add_child (T, S);       
-      } else {
-        break;
-      }
-    }
-    cc ++;
-    if (!LEX_CHAR ('+')) {
-      break;
-    }
-    EXPECT ("+");
-  }
-  if (!cc) {
-    PARSE_FAIL;
-  } else {
-    PARSE_OK;
-  }
-}
-
-struct tree *parse_expr (void) {
-  PARSE_INIT (type_expr);
-  int cc = 0;
-  while (1) {
-    PARSE_TRY (parse_subexpr);
-    if (S) {
-      tree_add_child (T, S);
-      cc ++;
-    } else {
-      if (cc < 1) { PARSE_FAIL; }
-      else { PARSE_OK; }
-    }
-  }
-}
-
-
-
-struct tree *parse_final_empty (void) {
-  PARSE_INIT (type_final_empty);
-  EXPECT ("Empty");
-  PARSE_TRY_PES (parse_boxed_type_ident);
-  PARSE_OK;
-}
-
-struct tree *parse_final_new (void) {
-  PARSE_INIT (type_final_new);
-  EXPECT ("New");
-  PARSE_TRY_PES (parse_boxed_type_ident);
-  PARSE_OK;
-}
-
-struct tree *parse_final_final (void) {
-  PARSE_INIT (type_final_final);
-  EXPECT ("Final");
-  PARSE_TRY_PES (parse_boxed_type_ident);
-  PARSE_OK;
-}
-
-struct tree *parse_partial_comb_app_decl (void) {
-  PARSE_INIT (type_partial_comb_app_decl);
-  PARSE_TRY_PES (parse_combinator_id);
-  while (1) {
-    PARSE_TRY_PES (parse_subexpr);
-    if (LEX_CHAR (';')) { break; }
-  }
-  PARSE_OK;
-}
-
-struct tree *parse_partial_type_app_decl (void) {
-  PARSE_INIT (type_partial_type_app_decl);
-  PARSE_TRY_PES (parse_boxed_type_ident);
-  if (LEX_CHAR ('<')) {
-    EXPECT ("<");
-    while (1) {
-      PARSE_TRY_PES (parse_expr);
-      if (LEX_CHAR ('>')) { break; }
-      EXPECT (",");
-    }
-    EXPECT (">");
-    PARSE_OK;
-  } else {
-    while (1) {
-      PARSE_TRY_PES (parse_subexpr);
-      if (LEX_CHAR (';')) { break; }
-    }
-    PARSE_OK;
-  }
-}
-
-
-
-
-struct tree *parse_multiplicity (void) {
-  PARSE_INIT (type_multiplicity);
-  PARSE_TRY_PES (parse_nat_term);
-  PARSE_OK;
-}
-
-
-struct tree *parse_type_term (void) {
-  PARSE_INIT (type_type_term);
-  PARSE_TRY_PES (parse_term);
-  PARSE_OK;
-}
-
-struct tree *parse_optional_arg_def (void) {
-  PARSE_INIT (type_optional_arg_def);
-  PARSE_TRY_PES (parse_var_ident);
-  EXPECT (".");
-  PARSE_TRY_PES (parse_nat_const);
-  EXPECT ("?");
-  PARSE_OK;
-}
-
-struct tree *parse_args4 (void) {
-  PARSE_INIT (type_args4);
-  struct parse so = save_parse ();
-  PARSE_TRY (parse_optional_arg_def);
-  if (S) {
-    tree_add_child (T, S);
-  } else {
-    load_parse (so);    
-  }
-  if (LEX_CHAR ('!')) {
-    PARSE_ADD (type_exclam);
-    EXPECT ("!");
-  }
-  PARSE_TRY_PES (parse_type_term);
-  PARSE_OK;
-}
-
-struct tree *parse_args3 (void) {
-  PARSE_INIT (type_args3);
-  PARSE_TRY_PES (parse_var_ident_opt);
-  EXPECT (":");
-  struct parse so = save_parse ();
-  PARSE_TRY (parse_optional_arg_def);
-  if (S) {
-    tree_add_child (T, S);
-  } else {
-    load_parse (so);    
-  }
-  if (LEX_CHAR ('!')) {
-    PARSE_ADD (type_exclam);
-    EXPECT ("!");
-  }
-  PARSE_TRY_PES (parse_type_term);
-  PARSE_OK;
-}
-
-struct tree *parse_args2 (void) {
-  PARSE_INIT (type_args2);
-  PARSE_TRY (parse_var_ident_opt);
-  if (S && LEX_CHAR (':')) {
-    tree_add_child (T, S);
-    EXPECT (":");
-  } else {
-    load_parse (save);
-  }
-  struct parse so = save_parse ();
-  PARSE_TRY (parse_optional_arg_def);
-  if (S) {
-    tree_add_child (T, S);
-  } else {
-    load_parse (so);    
-  }
-  struct parse save2 = save_parse ();
-  PARSE_TRY (parse_multiplicity);
-  if (S && LEX_CHAR ('*')) {
-    tree_add_child (T, S);
-    EXPECT ("*");
-  } else {
-    load_parse (save2);
-  }
-  EXPECT ("[");
-  while (1) {
-    if (LEX_CHAR (']')) { break; }
-    PARSE_TRY_PES (parse_args);
-  }
-  EXPECT ("]");
-  PARSE_OK;
-}
-
-struct tree *parse_args1 (void) {
-  PARSE_INIT (type_args1);
-  EXPECT ("(");
-  while (1) {
-    PARSE_TRY_PES (parse_var_ident_opt);
-    if (LEX_CHAR(':')) { break; }
-  }
-  EXPECT (":");
-  struct parse so = save_parse ();
-  PARSE_TRY (parse_optional_arg_def);
-  if (S) {
-    tree_add_child (T, S);
-  } else {
-    load_parse (so);    
-  }
-  if (LEX_CHAR ('!')) {
-    PARSE_ADD (type_exclam);
-    EXPECT ("!");
-  }
-  PARSE_TRY_PES (parse_type_term);
-  EXPECT (")");
-  PARSE_OK;
-}
-
-struct tree *parse_args (void) {
-  PARSE_INIT (type_args);
-  PARSE_TRY_OPT (parse_args1);
-  PARSE_TRY_OPT (parse_args2);
-  PARSE_TRY_OPT (parse_args3);
-  PARSE_TRY_OPT (parse_args4);
-  PARSE_FAIL;
-}
-
-struct tree *parse_opt_args (void) {
-  PARSE_INIT (type_opt_args);
-  while (1) {
-    PARSE_TRY_PES (parse_var_ident);
-    if (parse.lex.type == lex_char && *parse.lex.ptr == ':') { break;}
-  }
-  EXPECT (":");
-  PARSE_TRY_PES (parse_type_term);
-  PARSE_OK;
-}
-
-struct tree *parse_final_decl (void) {
-  PARSE_INIT (type_final_decl);
-  PARSE_TRY_OPT (parse_final_new);
-  PARSE_TRY_OPT (parse_final_final);
-  PARSE_TRY_OPT (parse_final_empty);
-  PARSE_FAIL;
-}
-
-struct tree *parse_partial_app_decl (void) {
-  PARSE_INIT (type_partial_app_decl);
-  PARSE_TRY_OPT (parse_partial_type_app_decl);
-  PARSE_TRY_OPT (parse_partial_comb_app_decl);
-  PARSE_FAIL;
-}
-
-struct tree *parse_result_type (void) {
-  PARSE_INIT (type_result_type);
-  PARSE_TRY_PES (parse_boxed_type_ident);
-  if (LEX_CHAR ('<')) {
-    EXPECT ("<");
-    while (1) {
-      PARSE_TRY_PES (parse_expr);
-      if (LEX_CHAR ('>')) { break; }
-      EXPECT (",");
-    }
-    EXPECT (">");
-    PARSE_OK;
-  } else {
-    while (1) {
-      if (LEX_CHAR (';')) { PARSE_OK; }
-      PARSE_TRY_PES (parse_subexpr);
-    }
-  }
-}
-
-struct tree *parse_combinator_decl (void) {
-  PARSE_INIT (type_combinator_decl);
-  PARSE_TRY_PES (parse_full_combinator_id)
-  while (1) {
-    if (LEX_CHAR ('{')) {
-      parse_lex ();
-      PARSE_TRY_PES (parse_opt_args);
-      EXPECT ("}");
-    } else {
-      break;
-    }
-  }
-  while (1) {
-    if (LEX_CHAR ('=')) { break; }
-    PARSE_TRY_PES (parse_args);
-  }
-  EXPECT ("=");
-  PARSE_ADD (type_equals);
-
-  PARSE_TRY_PES (parse_result_type);
-  PARSE_OK;
-}
-
-struct tree *parse_builtin_combinator_decl (void) {
-  PARSE_INIT (type_builtin_combinator_decl);
-  PARSE_TRY_PES (parse_full_combinator_id)
-  EXPECT ("?");
-  EXPECT ("=");
-  PARSE_TRY_PES (parse_boxed_type_ident);
-  PARSE_OK;
-}
-
-struct tree *parse_declaration (void) {
-  PARSE_INIT (type_declaration);
-  PARSE_TRY_OPT (parse_combinator_decl);
-  PARSE_TRY_OPT (parse_partial_app_decl);
-  PARSE_TRY_OPT (parse_final_decl);
-  PARSE_TRY_OPT (parse_builtin_combinator_decl);
-  PARSE_FAIL;
-}
-
-struct tree *parse_constr_declarations (void) {
-  PARSE_INIT (type_constr_declarations);
-  if (parse.lex.type == lex_triple_minus || parse.lex.type == lex_eof) { PARSE_OK; }
-  while (1) {
-    PARSE_TRY_PES (parse_declaration);
-    EXPECT (";");
-    if (parse.lex.type == lex_eof || parse.lex.type == lex_triple_minus) { PARSE_OK; }
-  }
-}
-
-struct tree *parse_fun_declarations (void) {
-  PARSE_INIT (type_fun_declarations);
-  if (parse.lex.type == lex_triple_minus || parse.lex.type == lex_eof) { PARSE_OK; }
-  while (1) {
-    PARSE_TRY_PES (parse_declaration);
-    EXPECT (";");
-    if (parse.lex.type == lex_eof || parse.lex.type == lex_triple_minus) { PARSE_OK; }
-  }
-}
-
-struct tree *parse_program (void) {
-  PARSE_INIT (type_tl_program);
-  while (1) {
-    PARSE_TRY_PES (parse_constr_declarations);
-    if (parse.lex.type == lex_eof) { PARSE_OK; }
-    if (parse.lex.type == lex_error || expect ("---") < 0 || expect ("functions") < 0 || expect ("---") < 0) { PARSE_FAIL; }
-
-    PARSE_TRY_PES (parse_fun_declarations);
-    if (parse.lex.type == lex_eof) { PARSE_OK; }
-    if (parse.lex.type == lex_error || expect ("---") < 0 || expect ("types") < 0 || expect ("---") < 0) { PARSE_FAIL; }
-  }
-}
-
-struct tree *tl_parse_lex (struct parse *_parse) {
-  assert (_parse);
-  load_parse (*_parse);
-  if (parse.lex.type == lex_none) {
-    parse_lex ();
-  }
-  if (parse.lex.type == lex_error) {
-    return 0;
-  }
-  return parse_program ();
-}
-
-int mystrcmp2 (const char *b, int len, const char *a) {
-  int c = strncmp (b, a, len);
-  return c ? a[len] ? -1 : 0 : c;
-}
-
-char *mystrdup (const char *a, int len) {
-  char *z = talloc (len + 1);
-  memcpy (z, a, len);
-  z[len] = 0;
-  return z;
-}
-
-struct tl_program *tl_program_cur;
-#define TL_TRY_PES(x) if (!(x)) { return 0; }
-
-#define tl_type_cmp(a,b) (strcmp (a->id, b->id))
-DEFINE_TREE (tl_type,struct tl_type *,tl_type_cmp,0)
-struct tree_tl_type *tl_type_tree;
-
-DEFINE_TREE (tl_constructor,struct tl_constructor *,tl_type_cmp,0)
-struct tree_tl_constructor *tl_constructor_tree;
-struct tree_tl_constructor *tl_function_tree;
-
-DEFINE_TREE (tl_var,struct tl_var *,tl_type_cmp,0)
-
-struct tl_var_value {
-  struct tl_combinator_tree *ptr;
-  struct tl_combinator_tree *val;
-  int num_val;
-};
-
-#define tl_var_value_cmp(a,b) (((char *)a.ptr) - ((char *)b.ptr))
-struct tl_var_value empty;
-DEFINE_TREE (var_value, struct tl_var_value, tl_var_value_cmp, empty)
-//tree_tl_var_t *tl_var_tree;
-
-DEFINE_TREE (tl_field,char *,strcmp, 0)
-//tree_tl_field_t *tl_field_tree;
-#define TL_FAIL return 0;
-#define TL_INIT(x) struct tl_combinator_tree *x = 0;
-#define TL_TRY(f,x) { struct tl_combinator_tree *_t = f; if (!_t) { TL_FAIL;} x = tl_union (x, _t); if (!x) { TL_FAIL; }}
-#define TL_ERROR(...) fprintf (stderr, __VA_ARGS__);
-#define TL_WARNING(...) fprintf (stderr, __VA_ARGS__);
-
-void tl_set_var_value (struct tree_var_value **T, struct tl_combinator_tree *var, struct tl_combinator_tree *value) {
-  struct tl_var_value t = {.ptr = var, .val = value, .num_val = 0};
-  if (tree_lookup_var_value (*T, t).ptr) {
-    *T = tree_delete_var_value (*T, t);
-  }
-  *T = tree_insert_var_value (*T, t, lrand48 ());
-}
-
-void tl_set_var_value_num (struct tree_var_value **T, struct tl_combinator_tree *var, struct tl_combinator_tree *value, long long num_value) {
-  struct tl_var_value t = {.ptr = var, .val = value, .num_val = num_value};
-  if (tree_lookup_var_value (*T, t).ptr) {
-    *T = tree_delete_var_value (*T, t);
-  }
-  *T = tree_insert_var_value (*T, t, lrand48 ());
-}
-
-struct tl_combinator_tree *tl_get_var_value (struct tree_var_value **T, struct tl_combinator_tree *var) {
-  struct tl_var_value t = {.ptr = var, .val = 0, .num_val = 0};
-  struct tl_var_value r = tree_lookup_var_value (*T, t);
-  return r.ptr ? r.val : 0;
-}
-
-int tl_get_var_value_num (struct tree_var_value **T, struct tl_combinator_tree *var) {
-  struct tl_var_value t = {.ptr = var, .val = 0};
-  struct tl_var_value r = tree_lookup_var_value (*T, t);
-  return r.ptr ? r.num_val : 0;
-}
-
-int namespace_level;
-
-struct tree_tl_var *vars[10];
-struct tree_tl_field *fields[10];
-struct tl_var *last_num_var[10];
-
-int tl_is_type_name (const char *id, int len) {
-  if (len == 1 && *id == '#') { return 1;}
-  int ok = id[0] >= 'A' && id[0] <= 'Z';
-  int i;
-  for (i = 0; i < len - 1; i++) if (id[i] == '.') {
-    ok = id[i + 1] >= 'A' && id[i + 1] <= 'Z';
-  }
-  return ok;
-}
-
-int tl_add_field (char *id) {
-  assert (namespace_level < 10);
-  assert (namespace_level >= 0);
-  if (tree_lookup_tl_field (fields[namespace_level], id)) {
-    return 0;
-  }
-  fields[namespace_level] = tree_insert_tl_field (fields[namespace_level], id, lrand48 ());
-  return 1;
-}
-
-void tl_clear_fields (void) {
-//  tree_act_tl_field (fields[namespace_level], (void *)free); 
-  fields[namespace_level] = tree_clear_tl_field (fields[namespace_level]); 
-}
-
-struct tl_var *tl_add_var (char *id, struct tl_combinator_tree *ptr, int type) {
-  struct tl_var *v = talloc (sizeof (*v));
-  v->id = tstrdup (id);
-  v->type = type;
-  v->ptr = ptr;
-  v->flags = 0;
-  if (tree_lookup_tl_var (vars[namespace_level], v)) {
-    return 0;
-  }
-  vars[namespace_level] = tree_insert_tl_var (vars[namespace_level], v, lrand48 ());
-  if (type) {
-    last_num_var[namespace_level] = v;
-  }
-  return v;
-}
-
-void tl_del_var (struct tl_var *v) {
-//  free (v->id);
-  tfree (v, sizeof (*v));
-}
-
-void tl_clear_vars (void) {
-  tree_act_tl_var (vars[namespace_level], tl_del_var);
-  vars[namespace_level] = tree_clear_tl_var (vars[namespace_level]);
-  last_num_var[namespace_level] = 0;
-}
-
-struct tl_var *tl_get_last_num_var (void) {
-  return last_num_var[namespace_level];
-}
-
-struct tl_var *tl_get_var (char *_id, int len) {
-  char *id = mystrdup (_id, len);
-  struct tl_var v = {.id = id};
-  int i;
-  for (i = namespace_level; i >= 0; i--) {
-    struct tl_var *w = tree_lookup_tl_var (vars[i], &v);
-    if (w) {
-      tfree (id, len + 1);
-      return w;
-    }
-  }
-  tfree (id, len + 1);
-  return 0;
-}
-
-void namespace_push (void) {
-  namespace_level ++;
-  assert (namespace_level < 10);
-  tl_clear_vars ();
-  tl_clear_fields ();
-}
-
-void namespace_pop (void) {
-  namespace_level --;
-  assert (namespace_level >= 0);
-}
-
-struct tl_type *tl_get_type (const char *_id, int len) {
-  char *id = mystrdup (_id, len);
-  struct tl_type _t = {.id = id};
-  struct tl_type *r = tree_lookup_tl_type (tl_type_tree, &_t);
-  tfree (id, len + 1);
-  return r;
-}
-
-struct tl_type *tl_add_type (const char *_id, int len, int params_num, long long params_types) {
-  char *id = talloc (len + 1);
-  memcpy (id, _id, len);
-  id[len] = 0;
-  struct tl_type _t = {.id = id};
-  struct tl_type *_r = 0;
-  if ((_r = tree_lookup_tl_type (tl_type_tree, &_t))) {
-    tfree (id, len + 1);
-    if (params_num >= 0 && (_r->params_num != params_num || _r->params_types != params_types)) {
-      TL_ERROR ("Wrong params_num or types for type %s\n", _r->id);
-      return 0;
-    }
-    return _r;
-  }
-  struct tl_type *t = talloc (sizeof (*t));
-  t->id = id;
-  t->print_id = tstrdup (t->id);
-  int i;
-  for (i = 0; i < len; i++) if (t->print_id[i] == '.' || t->print_id[i] == '#' || t->print_id[i] == ' ') {
-    t->print_id[i] = '$';
-  }
-  t->name = 0;
-  t->constructors_num = 0;
-  t->constructors = 0;
-  t->flags = 0;
-  t->real_id = 0;
-  if (params_num >= 0) {
-    assert (params_num <= 64);
-    t->params_num = params_num;
-    t->params_types = params_types;
-  } else {
-    t->flags |= 4;
-    t->params_num = -1;
-  }
-  tl_type_tree = tree_insert_tl_type (tl_type_tree, t, lrand48 ());
-  total_types_num ++;
-  return t;
-}
-
-void tl_add_type_param (struct tl_type *t, int x) {
-  assert (t->flags & 4);
-  assert (t->params_num <= 64); 
-  if (x) {
-    t->params_types |= (1ull << (t->params_num ++));   
-  } else {
-    t->params_num ++;
-  }
-}
-
-int tl_type_set_params (struct tl_type *t, int x, long long y) {
-  if (t->flags & 4) {
-    t->params_num = x;
-    t->params_types = y;
-    t->flags &= ~4;
-  } else {
-    if (t->params_num != x || t->params_types != y) {
-      fprintf (stderr, "Wrong num of params (type %s)\n", t->id);
-      return 0;
-    }
-  }
-  return 1;
-}
-
-void tl_type_finalize (struct tl_type *t) {
-  t->flags &= ~4;
-}
-
-struct tl_constructor *tl_get_constructor (const char *_id, int len) {
-  char *id = mystrdup (_id, len);
-  struct tl_constructor _t = {.id = id};
-  struct tl_constructor *r = tree_lookup_tl_constructor (tl_constructor_tree, &_t);
-  tfree (id, len + 1);
-  return r;
-}
-
-struct tl_constructor *tl_add_constructor (struct tl_type *a, const char *_id, int len, int force_magic) {
-  assert (a);
-  if (a->flags & 1) {
-    TL_ERROR ("New constructor for type `%s` after final statement\n", a->id);
-    return 0;
-  }
-  int x = 0;
-  while (x < len && (_id[x] != '#' || force_magic)) { x++; }
-  char *id = talloc (x + 1);
-  memcpy (id, _id, x);
-  id[x] = 0;
-
-  unsigned magic = 0;
-  if (x < len) {
-    assert (len - x >= 6 && len - x <= 9);
-    int i;
-    for (i = 1; i < len - x; i++) {
-      magic = (magic << 4) + (_id[x + i] <= '9' ? _id[x + i] - '0' : _id[x + i] - 'a' + 10);
-    }
-    assert (magic && magic != (unsigned)-1);
-  }
-
-  len = x;
-  if (*id != '_') {
-    struct tl_constructor _t = {.id = id};
-    if (tree_lookup_tl_constructor (tl_constructor_tree, &_t)) {
-      TL_ERROR ("Duplicate constructor id `%s`\n", id);
-      tfree (id, len + 1);
-      return 0;
-    }
-  } else {
-    assert (len == 1);
-  }
-
-  struct tl_constructor *t = talloc (sizeof (*t));
-  t->type = a;
-  t->name = magic;
-  t->id = id; 
-  t->print_id = tstrdup (id);
-  t->real_id = 0;
-
-  int i;
-  for (i = 0; i < len; i++) if (t->print_id[i] == '.' || t->print_id[i] == '#' || t->print_id[i] == ' ') {
-    t->print_id[i] = '$';
-  }
-
-  t->left = t->right = 0;
-  a->constructors = realloc (a->constructors, sizeof (void *) * (a->constructors_num + 1));
-  assert (a->constructors);
-  a->constructors[a->constructors_num ++] = t;
-  if (*id != '_') {
-    tl_constructor_tree = tree_insert_tl_constructor (tl_constructor_tree, t, lrand48 ());
-  } else {
-    a->flags |= FLAG_DEFAULT_CONSTRUCTOR;
-  }
-  total_constructors_num ++;
-  return t;
-}
-
-struct tl_constructor *tl_get_function (const char *_id, int len) {
-  char *id = mystrdup (_id, len);
-  struct tl_constructor _t = {.id = id};
-  struct tl_constructor *r = tree_lookup_tl_constructor (tl_function_tree, &_t);
-  tfree (id, len + 1);
-  return r;
-}
-
-struct tl_constructor *tl_add_function (struct tl_type *a, const char *_id, int len, int force_magic) {
-//  assert (a);
-  int x = 0;
-  while (x < len && ((_id[x] != '#') || force_magic)) { x++; }
-  char *id = talloc (x + 1);
-  memcpy (id, _id, x);
-  id[x] = 0;
-
-  unsigned magic = 0;
-  if (x < len) {
-    assert (len - x >= 6 && len - x <= 9);
-    int i;
-    for (i = 1; i < len - x; i++) {
-      magic = (magic << 4) + (_id[x + i] <= '9' ? _id[x + i] - '0' : _id[x + i] - 'a' + 10);
-    }
-    assert (magic && magic != (unsigned)-1);
-  }
-
-  len = x;
-
-  struct tl_constructor _t = {.id = id};
-  if (tree_lookup_tl_constructor (tl_function_tree, &_t)) {
-    TL_ERROR ("Duplicate function id `%s`\n", id);
-    tfree (id, len + 1);
-    return 0;
-  }
-
-  struct tl_constructor *t = talloc (sizeof (*t));
-  t->type = a;
-  t->name = magic;
-  t->id = id; 
-  t->print_id = tstrdup (id);
-  t->real_id = 0;
-
-  int i;
-  for (i = 0; i < len; i++) if (t->print_id[i] == '.' || t->print_id[i] == '#' || t->print_id[i] == ' ') {
-    t->print_id[i] = '$';
-  }
-
-  t->left = t->right = 0;
-  tl_function_tree = tree_insert_tl_constructor (tl_function_tree, t, lrand48 ());
-  total_functions_num ++;
-  return t;
-}
-
-static char buf[(1 << 20)];
-int buf_pos;
-
-struct tl_combinator_tree *alloc_ctree_node (void) {
-  struct tl_combinator_tree *T = talloc (sizeof (*T));
-  assert (T);
-  memset (T, 0, sizeof (*T));
-  return T;
-}
-
-struct tl_combinator_tree *tl_tree_dup (struct tl_combinator_tree *T) {
-  if (!T) { return 0; }
-  struct tl_combinator_tree *S = talloc (sizeof (*S));
-  memcpy (S, T, sizeof (*S));
-  S->left = tl_tree_dup (T->left);
-  S->right = tl_tree_dup (T->right);
-  return S;
-}
-
-struct tl_type *tl_tree_get_type (struct tl_combinator_tree *T) {
-  assert (T->type == type_type);
-  if (T->act == act_array) { return 0;}
-  while (T->left) {
-    T = T->left;
-    if (T->act == act_array) { return 0;}
-    assert (T->type == type_type);
-  }
-  assert (T->act == act_type || T->act == act_var || T->act == act_array);
-  return T->act == act_type ? T->data : 0;
-}
-
-void tl_tree_set_len (struct tl_combinator_tree *T) {
-  TL_INIT (H);
-  H = T;
-  while (H->left) {
-    H->left->type_len = H->type_len + 1;
-    H = H->left;
-  }
-  assert (H->type == type_type);
-  struct tl_type *t = H->data;
-  assert (t);
-  assert (H->type_len == t->params_num);
-}
-
-void tl_buf_reset (void) {
-  buf_pos = 0;
-}
-
-void tl_buf_add_string (char *s, int len) {
-  if (len < 0) { len = strlen (s); }
-  buf[buf_pos ++] = ' ';
-  memcpy (buf + buf_pos, s, len); buf_pos += len;
-  buf[buf_pos] = 0;
-}
-
-void tl_buf_add_string_nospace (char *s, int len) {
-  if (len < 0) { len = strlen (s); }
-//  if (buf_pos) { buf[buf_pos ++] = ' '; }
-  memcpy (buf + buf_pos, s, len); buf_pos += len;
-  buf[buf_pos] = 0;
-}
-
-void tl_buf_add_string_q (char *s, int len, int x) {
-  if (x) {
-    tl_buf_add_string (s, len);
-  } else {
-    tl_buf_add_string_nospace (s, len);
-  }
-}
-
-
-void tl_buf_add_tree (struct tl_combinator_tree *T, int x) {
-  if (!T) { return; }
-  assert (T != (void *)-1l && T != (void *)-2l);
-  switch (T->act) {
-  case act_question_mark:
-    tl_buf_add_string_q ("?", -1, x);
-    return;
-  case act_type:
-    if ((T->flags & 1) && !(T->flags & 4)) {
-      tl_buf_add_string_q ("%", -1, x);
-      x = 0;
-    }
-    if (T->flags & 2) {
-      tl_buf_add_string_q ((char *)T->data, -1, x);
-    } else {
-      struct tl_type *t = T->data;
-      if (T->flags & 4) {
-        assert (t->constructors_num == 1);
-        tl_buf_add_string_q (t->constructors[0]->real_id ? t->constructors[0]->real_id : t->constructors[0]->id, -1, x);
-      } else {
-        tl_buf_add_string_q (t->real_id ? t->real_id : t->id, -1, x);
-      }
-    }
-    return;
-  case act_field:
-    if (T->data) {
-      tl_buf_add_string_q ((char *)T->data, -1, x);
-      x = 0;
-      tl_buf_add_string_q (":", -1, 0);
-    }
-    tl_buf_add_tree (T->left, x);
-    tl_buf_add_tree (T->right, 1);
-    return;
-  case act_union:
-    tl_buf_add_tree (T->left, x);
-    tl_buf_add_tree (T->right, 1);
-    return;
-  case act_var:
-    {
-      if (T->data == (void *)-1l) { return; }
-      struct tl_combinator_tree *v = T->data;
-      tl_buf_add_string_q ((char *)v->data, -1, x);
-      if (T->type == type_num && T->type_flags) {
-        static char _buf[30];
-        sprintf (_buf, "+%lld", T->type_flags);
-        tl_buf_add_string_q (_buf, -1, 0);
-      }
-    }
-    return;
-  case act_arg:
-    tl_buf_add_tree (T->left, x);
-    tl_buf_add_tree (T->right, 1);
-    return;
-  case act_array:
-    if (T->left && !(T->left->flags & 128)) {
-      tl_buf_add_tree (T->left, x);
-      x = 0;
-      tl_buf_add_string_q ("*", -1, x);
-    }
-    tl_buf_add_string_q ("[", -1, x);
-    tl_buf_add_tree (T->right, 1);
-    tl_buf_add_string_q ("]", -1, 1);
-    return;
-  case act_plus:
-    tl_buf_add_tree (T->left, x);
-    tl_buf_add_string_q ("+", -1, 0);
-    tl_buf_add_tree (T->right, 0);
-    return;
-  case act_nat_const:
-    {
-      static char _buf[30];
-      snprintf (_buf, 29, "%lld", T->type_flags);
-      tl_buf_add_string_q (_buf, -1, x);
-      return;
-    }
-  case act_opt_field:
-    {
-      struct tl_combinator_tree *v = T->left->data;
-      tl_buf_add_string_q ((char *)v->data, -1, x);
-      tl_buf_add_string_q (".", -1, 0);
-      static char _buf[30];
-      sprintf (_buf, "%lld", T->left->type_flags);
-      tl_buf_add_string_q (_buf, -1, 0);
-      tl_buf_add_string_q ("?", -1, 0);
-      tl_buf_add_tree (T->right, 0);
-      return;
-    }
-    
-  default:
-    fprintf (stderr, "%s %s\n", TL_ACT (T->act), TL_TYPE (T->type));
-    assert (0);
-    return;
-  }
-}
-
-int tl_count_combinator_name (struct tl_constructor *c) {
-  assert (c);
-  tl_buf_reset ();
-  tl_buf_add_string_nospace (c->real_id ? c->real_id : c->id, -1);
-  tl_buf_add_tree (c->left, 1);
-  tl_buf_add_string ("=", -1);
-  tl_buf_add_tree (c->right, 1);
-  //fprintf (stderr, "%.*s\n", buf_pos, buf);
-  if (!c->name) {
-    c->name = compute_crc32 (buf, buf_pos);
-  }
-  return c->name;
-}
-
-int tl_print_combinator (struct tl_constructor *c) {
-  tl_buf_reset ();
-  tl_buf_add_string_nospace (c->real_id ? c->real_id : c->id, -1);
-  static char _buf[10];
-  sprintf (_buf, "#%08x", c->name);
-  tl_buf_add_string_nospace (_buf, -1);
-  tl_buf_add_tree (c->left, 1);
-  tl_buf_add_string ("=", -1);
-  tl_buf_add_tree (c->right, 1);
-  if (output_expressions >= 1) {
-    fprintf (stderr, "%.*s\n", buf_pos, buf);
-  }
-/*  if (!c->name) {
-    c->name = compute_crc32 (buf, buf_pos);
-  }*/
-  return c->name;
-}
-
-int _tl_finish_subtree (struct tl_combinator_tree *R, int x, long long y) {
-  assert (R->type == type_type);
-  assert (R->type_len < 0);
-  assert (R->act == act_arg || R->act == act_type);
-  R->type_len = x;
-  R->type_flags = y;
-  if (R->act == act_type) {
-    struct tl_type *t = R->data;
-    assert (t);
-    return tl_type_set_params (t, x, y);
-  }
-  assert ((R->right->type == type_type && R->right->type_len == 0) || R->right->type == type_num || R->right->type == type_num_value);
-  return _tl_finish_subtree (R->left, x + 1, y * 2 + (R->right->type == type_num || R->right->type == type_num_value));
-}
-
-int tl_finish_subtree (struct tl_combinator_tree *R) {
-  assert (R);
-  if (R->type != type_type) {
-    return 1;
-  }
-  if (R->type_len >= 0) {
-    if (R->type_len > 0) {
-      TL_ERROR ("Not enough params\n");
-      return 0;
-    }
-    return 1;
-  }
-  return _tl_finish_subtree (R, 0, 0);
-}
-
-struct tl_combinator_tree *tl_union (struct tl_combinator_tree *L, struct tl_combinator_tree *R) {
-  if (!L) { return R; }
-  if (!R) { return L; }
-  TL_INIT (v);
-  v = alloc_ctree_node ();
-  v->left = L;
-  v->right = R;
-  switch (L->type) {
-  case type_num:
-    if (R->type != type_num_value) {
-      TL_ERROR ("Union: type mistmatch\n");
-      return 0;
-    }
-    tfree (v, sizeof (*v));
-    L->type_flags += R->type_flags;
-    return L;
-  case type_num_value:
-    if (R->type != type_num_value && R->type != type_num) {
-      TL_ERROR ("Union: type mistmatch\n");
-      return 0;
-    }
-    tfree (v, sizeof (*v));
-    R->type_flags += L->type_flags;
-    return R;
-  case type_list_item:   
-  case type_list:
-    if (R->type != type_list_item) {
-      TL_ERROR ("Union: type mistmatch\n");
-      return 0;
-    }
-    v->type = type_list;
-    v->act = act_union;
-    return v;
-  case type_type:
-    if (L->type_len == 0) {
-      TL_ERROR ("Arguments number exceeds type arity\n");
-      return 0;     
-    }
-    if (R->type != type_num && R->type != type_type && R->type != type_num_value) {
-      TL_ERROR ("Union: type mistmatch\n");
-      return 0;
-    }
-    if (R->type_len < 0) {
-      if (!tl_finish_subtree (R)) {
-        return 0;
-      }
-    }
-    if (R->type_len > 0) {
-      TL_ERROR ("Argument type must have full number of arguments\n");
-      return 0;     
-    }
-    if (L->type_len > 0 && ((L->type_flags & 1) != (R->type == type_num || R->type == type_num_value))) {
-      TL_ERROR ("Argument types mistmatch: L->type_flags = %lld, R->type = %s\n", L->flags, TL_TYPE (R->type));
-      return 0;
-    }
-    v->type = type_type;
-    v->act = act_arg;
-    v->type_len = L->type_len > 0 ? L->type_len - 1 : -1;
-    v->type_flags = L->type_flags >> 1;
-    return v;
-  default:
-    assert (0);
-    return 0;
-  }
-}
-
-struct tl_combinator_tree *tl_parse_any_term (struct tree *T, int s);
-struct tl_combinator_tree *tl_parse_term (struct tree *T, int s) {
-  assert (T->type == type_term);
-  int i = 0;
-  while (i < T->nc && T->c[i]->type == type_percent) { i ++; s ++; } 
-  assert (i < T->nc);
-  TL_INIT (L);
-  while (i < T->nc) {
-    TL_TRY (tl_parse_any_term (T->c[i], s), L);
-    s = 0;
-    i ++;
-  }
-  return L;
-}
-
-
-struct tl_combinator_tree *tl_parse_type_term (struct tree *T, int s) {
-  assert (T->type == type_type_term);
-  assert (T->nc == 1);
-  struct tl_combinator_tree *Z = tl_parse_term (T->c[0], s); 
-  if (!Z || Z->type != type_type) { if (Z) { TL_ERROR ("type_term: found type %s\n", TL_TYPE (Z->type)); } TL_FAIL; }
-  return Z;
-}
-
-struct tl_combinator_tree *tl_parse_nat_term (struct tree *T, int s) {
-  assert (T->type == type_nat_term);
-  assert (T->nc == 1);
-  struct tl_combinator_tree *Z = tl_parse_term (T->c[0], s);
-  if (!Z || (Z->type != type_num && Z->type != type_num_value)) { if (Z) { TL_ERROR ("nat_term: found type %s\n", TL_TYPE (Z->type)); }TL_FAIL; }
-  return Z;
-}
-
-struct tl_combinator_tree *tl_parse_subexpr (struct tree *T, int s) {
-  assert (T->type == type_subexpr);
-  assert (T->nc >= 1);
-  int i;
-  TL_INIT (L);
-  for (i = 0; i < T->nc; i++) {
-    TL_TRY (tl_parse_any_term (T->c[i], s), L);
-    s = 0;
-  }
-  return L;
-}
-
-struct tl_combinator_tree *tl_parse_expr (struct tree *T, int s) {
-  assert (T->type == type_expr);
-  assert (T->nc >= 1);
-  int i;
-  TL_INIT (L);
-  for (i = 0; i < T->nc; i++) {
-    TL_TRY (tl_parse_subexpr (T->c[i], s), L);
-    s = 0;
-  }
-  return L;
-}
-
-struct tl_combinator_tree *tl_parse_nat_const (struct tree *T, int s) {
-  assert (T->type == type_nat_const);
-  assert (!T->nc);
-  if (s > 0) {
-    TL_ERROR ("Nat const can not preceed with %%\n");
-    TL_FAIL;
-  }
-  assert (T->type == type_nat_const);
-  assert (!T->nc);
-  TL_INIT (L);
-  L = alloc_ctree_node ();
-  L->act = act_nat_const;
-  L->type = type_num_value;
-  int i;
-  long long x = 0;
-  for (i = 0; i < T->len; i++) {
-    x = x * 10 + T->text[i] - '0';
-  }
-  L->type_flags = x;
-  return L;
-}
-
-struct tl_combinator_tree *tl_parse_ident (struct tree *T, int s) {
-  assert (T->type == type_type_ident || T->type == type_var_ident || T->type == type_boxed_type_ident);
-  assert (!T->nc);
-  struct tl_var *v = tl_get_var (T->text, T->len);
-  TL_INIT (L);
-  if (v) {   
-    L = alloc_ctree_node ();
-    L->act = act_var;
-    L->type = v->type ? type_num : type_type;
-    if (L->type == type_num && s) {
-      TL_ERROR ("Nat var can not preceed with %%\n");
-      TL_FAIL;
-    } else {
-      if (s) {
-        L->flags |= 1;
-      }
-    }
-    L->type_len = 0;
-    L->type_flags = 0;
-    L->data = v->ptr;
-    return L;
-  }
-
-/*  if (!mystrcmp2 (T->text, T->len, "#") || !mystrcmp2 (T->text, T->len, "Type")) {
-    L = alloc_ctree_node ();
-    L->act = act_type;
-    L->flags |= 2;
-    L->data = tl_get_type (T->text, T->len);
-    assert (L->data);
-    L->type = type_type;
-    L->type_len = 0;
-    L->type_flags = 0;
-    return L;
-  }*/
-
-  struct tl_constructor *c = tl_get_constructor (T->text, T->len);
-  if (c) {
-    assert (c->type);
-    if (c->type->constructors_num != 1) {
-      TL_ERROR ("Constructor can be used only if it is the only constructor of the type\n");
-      return 0;
-    }
-    c->type->flags |= 1;
-    L = alloc_ctree_node ();
-    L->act = act_type;
-    L->flags |= 5;
-    L->data = c->type;
-    L->type = type_type;
-    L->type_len = c->type->params_num;
-    L->type_flags = c->type->params_types;
-    return L;
-  }
-  int x = tl_is_type_name (T->text, T->len);
-  if (x) {
-    struct tl_type *t = tl_add_type (T->text, T->len, -1, 0);
-    L = alloc_ctree_node ();
-    if (s) {
-      L->flags |= 1;
-      t->flags |= 8;
-    }
-    L->act = act_type;
-    L->data = t;
-    L->type = type_type;
-    L->type_len = t->params_num;
-    L->type_flags = t->params_types;   
-    return L;
-  } else {
-    TL_ERROR ("Not a type/var ident `%.*s`\n", T->len, T->text);
-    return 0;
-  }
-}
-
-struct tl_combinator_tree *tl_parse_any_term (struct tree *T, int s) {
-  switch (T->type) {
-  case type_type_term:
-    return tl_parse_type_term (T, s);
-  case type_nat_term:
-    return tl_parse_nat_term (T, s);
-  case type_term:
-    return tl_parse_term (T, s);
-  case type_expr:
-    return tl_parse_expr (T, s);
-  case type_subexpr:
-    return tl_parse_subexpr (T, s);
-  case type_nat_const:
-    return tl_parse_nat_const (T, s);
-  case type_type_ident:
-  case type_var_ident:
-    return tl_parse_ident (T, s);
-  default:
-    fprintf (stderr, "type = %d\n", T->type);
-    assert (0);
-    return 0;    
-  }
-}
-
-struct tl_combinator_tree *tl_parse_multiplicity (struct tree *T) {
-  assert (T->type == type_multiplicity);
-  assert (T->nc == 1);
-  return tl_parse_nat_term (T->c[0], 0);
-}
-
-struct tl_combinator_tree *tl_parse_opt_args (struct tree *T) {
-  assert (T);
-  assert (T->type == type_opt_args);
-  assert (T->nc >= 2);
-  TL_INIT (R);
-  TL_TRY (tl_parse_type_term (T->c[T->nc - 1], 0), R);
-  assert (R->type == type_type && !R->type_len);
-  assert (tl_finish_subtree (R));
-  struct tl_type *t = tl_tree_get_type (R);
-  //assert (t);
-  int tt = -1;
-  if (t && !strcmp (t->id, "#")) {
-    tt = 1;
-  } else if (t && !strcmp (t->id, "Type")) {
-    tt = 0;
-  }
-  if (tt < 0) {
-    TL_ERROR ("Optargs can be only of type # or Type\n");
-    TL_FAIL;
-  }
-
-  int i;
-  for (i = 0; i < T->nc - 1; i++) {
-    if (T->c[i]->type != type_var_ident) {
-      TL_ERROR ("Variable name expected\n");
-      TL_FAIL;
-    }
-    if (T->c[i]->len == 1 && *T->c[i]->text == '_') {
-      TL_ERROR ("Variables can not be unnamed\n");
-      TL_FAIL;
-    }
-  }
-  TL_INIT (H);
-//  for (i = T->nc - 2; i >= (T->nc >= 2 ? 0 : -1); i--) {
-  for (i = 0; i <= T->nc - 2; i++) {
-    TL_INIT (S); S = alloc_ctree_node ();
-    S->left = (i == T->nc - 2) ? R : tl_tree_dup (R) ; S->right = 0;
-    S->type = type_list_item;
-    S->type_len = 0;
-    S->act = act_field;
-    S->data = i >= 0 ? mystrdup (T->c[i]->text, T->c[i]->len) : 0;
-    if (tt >= 0) {
-      assert (S->data);
-      tl_add_var (S->data, S, tt);
-    }
-    S->flags = 33;
-    H = tl_union (H, S);
-  }
-  return H;
-}
-
-struct tl_combinator_tree *tl_parse_args (struct tree *T);
-struct tl_combinator_tree *tl_parse_args2 (struct tree *T) {
-  assert (T);
-  assert (T->type == type_args2);
-  assert (T->nc >= 1);
-  TL_INIT (R);
-  TL_INIT (L);
-  int x = 0;
-  char *field_name = 0;
-  if (T->c[x]->type == type_var_ident_opt || T->c[x]->type == type_var_ident) {
-    field_name = mystrdup (T->c[x]->text, T->c[x]->len);
-    if (!tl_add_field (field_name)) {
-      TL_ERROR ("Duplicate field name %s\n", field_name);     
-      TL_FAIL;
-    }
-    x ++;
-  } 
-  //fprintf (stderr, "%d %d\n", x, T->nc);
-  if (T->c[x]->type == type_multiplicity) {
-    L = tl_parse_multiplicity (T->c[x]);
-    if (!L) { TL_FAIL;}
-    x ++;
-  } else {
-    struct tl_var *v = tl_get_last_num_var ();
-    if (!v) { 
-      TL_ERROR ("Expected multiplicity or nat var\n");
-      TL_FAIL;
-    }
-    L = alloc_ctree_node ();
-    L->act = act_var;
-    L->type = type_num;
-    L->flags |= 128;
-    L->type_len = 0;
-    L->type_flags = 0;
-    L->data = v->ptr;
-    ((struct tl_combinator_tree *)(v->ptr))->flags |= 256;
-  }
-  namespace_push ();
-  while (x < T->nc) {
-    TL_TRY (tl_parse_args (T->c[x]), R);
-    x ++;
-  }
-  namespace_pop ();
-  struct tl_combinator_tree *S = alloc_ctree_node ();
-  S->type = type_type;
-  S->type_len = 0;
-  S->act = act_array;
-  S->left = L;
-  S->right = R;
-  //S->data = field_name;
-
-  struct tl_combinator_tree *H = alloc_ctree_node ();
-  H->type = type_list_item;
-  H->act = act_field;
-  H->left = S;
-  H->right = 0;
-  H->data = field_name;
-  H->type_len = 0;
- 
-  return H;
-}
-
-void tl_mark_vars (struct tl_combinator_tree *T);
-struct tl_combinator_tree *tl_parse_args134 (struct tree *T) {
-  assert (T);
-  assert (T->type == type_args1 || T->type == type_args3 || T->type == type_args4);
-  assert (T->nc >= 1);
-  TL_INIT (R);
-  TL_TRY (tl_parse_type_term (T->c[T->nc - 1], 0), R);
-  assert (tl_finish_subtree (R));
-  assert (R->type == type_type && !R->type_len);
-  struct tl_type *t = tl_tree_get_type (R);
-  //assert (t);
-  int tt = -1;
-  if (t && !strcmp (t->id, "#")) {
-    tt = 1;
-  } else if (t && !strcmp (t->id, "Type")) {
-    tt = 0;
-  }
-
-/*  if (tt >= 0 && T->nc == 1) {
-    TL_ERROR ("Variables can not be unnamed (type %d)\n", tt);
-  }*/
-  int last = T->nc - 2;
-  int excl = 0;
-  if (last >= 0 && T->c[last]->type == type_exclam) {
-    excl ++;
-    tl_mark_vars (R);
-    last --;
-  }
-  if (last >= 0 && T->c[last]->type == type_optional_arg_def) {
-    assert (T->c[last]->nc == 2);
-    TL_INIT (E); E = alloc_ctree_node ();
-    E->type = type_type;
-    E->act = act_opt_field;
-    E->left = tl_parse_ident (T->c[last]->c[0], 0);
-    int i;
-    long long x = 0;
-    for (i = 0; i < T->c[last]->c[1]->len; i++) {
-      x = x * 10 + T->c[last]->c[1]->text[i] - '0';
-    }
-    E->left->type_flags = x;
-    E->type_flags = R->type_flags;
-    E->type_len = R->type_len;
-    E->right = R;
-    R = E;
-    last --;
-  }
-  int i;
-  for (i = 0; i < last; i++) {
-    if (T->c[i]->type != type_var_ident && T->c[i]->type != type_var_ident_opt) {
-      TL_ERROR ("Variable name expected\n");
-      TL_FAIL;
-    }
-/*    if (tt >= 0 && (T->nc == 1 || (T->c[i]->len == 1 && *T->c[i]->text == '_'))) {
-      TL_ERROR ("Variables can not be unnamed\n");
-      TL_FAIL;
-    }*/
-  }
-  TL_INIT (H);
-//  for (i = T->nc - 2; i >= (T->nc >= 2 ? 0 : -1); i--) {
-  for (i = (last >= 0 ? 0 : -1); i <= last; i++) {
-    TL_INIT (S); S = alloc_ctree_node ();
-    S->left = (i == last) ? R : tl_tree_dup (R) ; S->right = 0;
-    S->type = type_list_item;
-    S->type_len = 0;
-    S->act = act_field;
-    S->data = i >= 0 ? mystrdup (T->c[i]->text, T->c[i]->len) : 0;
-    if (excl) {
-      S->flags |= FLAG_EXCL;
-    }
-    if (S->data && (T->c[i]->len >= 2 || *T->c[i]->text != '_')) {
-      if (!tl_add_field (S->data)) {
-        TL_ERROR ("Duplicate field name %s\n", (char *)S->data);
-        TL_FAIL;
-      }
-    }
-    if (tt >= 0) {
-      //assert (S->data);
-      char *name = S->data;
-      if (!name) {
-        static char s[20];
-        sprintf (s, "%lld", lrand48 () * (1ll << 32) + lrand48 ());
-        name = s;
-      }
-      struct tl_var *v = tl_add_var (name, S, tt);
-      if (!v) {TL_FAIL;}
-      v->flags |= 2;
-    }
-    
-    H = tl_union (H, S);
-  }
-  return H;
-}
-
-
-struct tl_combinator_tree *tl_parse_args (struct tree *T) {
-  assert (T->type == type_args);
-  assert (T->nc == 1);
-  switch (T->c[0]->type) {
-  case type_args1:
-    return tl_parse_args134 (T->c[0]);
-  case type_args2:
-    return tl_parse_args2 (T->c[0]);
-  case type_args3:
-    return tl_parse_args134 (T->c[0]);
-  case type_args4:
-    return tl_parse_args134 (T->c[0]);
-  default:
-    assert (0);
-    return 0;
-  } 
-}
-
-void tl_mark_vars (struct tl_combinator_tree *T) {
-  if (!T) { return; }
-  if (T->act == act_var) {
-    char *id = ((struct tl_combinator_tree *)(T->data))->data;
-    struct tl_var *v = tl_get_var (id, strlen (id));
-    assert (v);
-    v->flags |= 1;
-  }
-  tl_mark_vars (T->left);
-  tl_mark_vars (T->right);
-}
-
-struct tl_combinator_tree *tl_parse_result_type (struct tree *T) {
-  assert (T->type == type_result_type);
-  assert (T->nc >= 1);
-  assert (T->nc <= 64);
-  
-  TL_INIT (L);
-
-  if (tl_get_var (T->c[0]->text, T->c[0]->len)) {
-    if (T->nc != 1) {
-      TL_ERROR ("Variable can not take params\n");
-      TL_FAIL;
-    }
-    L = alloc_ctree_node ();
-    L->act = act_var;
-    L->type = type_type;
-    struct tl_var *v = tl_get_var (T->c[0]->text, T->c[0]->len);
-    if (v->type) {
-      TL_ERROR ("Type mistmatch\n");
-      TL_FAIL;
-    }
-    L->data = v->ptr;
-//    assert (v->ptr);
-  } else {
-    L = alloc_ctree_node ();
-    L->act = act_type;
-    L->type = type_type;
-    struct tl_type *t = tl_add_type (T->c[0]->text, T->c[0]->len, -1, 0);
-    assert (t);
-    L->type_len = t->params_num;
-    L->type_flags = t->params_types;
-    L->data = t;
-
-    int i;
-    for (i = 1; i < T->nc; i++) {
-      TL_TRY (tl_parse_any_term (T->c[i], 0), L);
-      assert (L->right);   
-      assert (L->right->type == type_num || L->right->type == type_num_value || (L->right->type == type_type && L->right->type_len == 0));
-    }
-  }
-
-  if (!tl_finish_subtree (L)) {
-    TL_FAIL;
-  }
-
-  tl_mark_vars (L);
-  return L;
-}
-
-int __ok;
-void tl_var_check_used (struct tl_var *v) {
-  __ok = __ok && (v->flags & 3);
-}
-
-int tl_parse_combinator_decl (struct tree *T, int fun) {
-  assert (T->type == type_combinator_decl);
-  assert (T->nc >= 3);
-  namespace_level = 0;
-  tl_clear_vars ();
-  tl_clear_fields ();
-  TL_INIT (L);
-  TL_INIT (R);
-
-  int i = 1;
-  while (i < T->nc - 2 && T->c[i]->type == type_opt_args) {
-    TL_TRY (tl_parse_opt_args (T->c[i]), L);
-    i++;
-  }
-  while (i < T->nc - 2 && T->c[i]->type == type_args) {
-    TL_TRY (tl_parse_args (T->c[i]), L);
-    i++;
-  }
-  assert (i == T->nc - 2 && T->c[i]->type == type_equals);
-  i ++;
-
-  R = tl_parse_result_type (T->c[i]);
-  if (!R) { TL_FAIL; }
-
-  struct tl_type *t = tl_tree_get_type (R);
-  if (!fun && !t) {
-    TL_ERROR ("Only functions can return variables\n");
-  }
-  assert (t || fun);
- 
-  assert (namespace_level == 0);
-  __ok = 1;
-  tree_act_tl_var (vars[0], tl_var_check_used);
-  if (!__ok) {
-    TL_ERROR ("Not all variables are used in right side\n");
-    TL_FAIL;
-  }
- 
-  if (tl_get_constructor (T->c[0]->text, T->c[0]->len) || tl_get_function (T->c[0]->text, T->c[0]->len)) {
-    TL_ERROR ("Duplicate combinator id %.*s\n", T->c[0]->len, T->c[0]->text);
-    return 0;
-  }
-  struct tl_constructor *c = !fun ? tl_add_constructor (t, T->c[0]->text, T->c[0]->len, 0) : tl_add_function (t, T->c[0]->text, T->c[0]->len, 0);
-  if (!c) { TL_FAIL; }
-  c->left = L;
-  c->right = R;
- 
-  if (!c->name) {
-    tl_count_combinator_name (c);
-  }
-  tl_print_combinator (c);
-
-  return 1;
-}
-
-void change_var_ptrs (struct tl_combinator_tree *O, struct tl_combinator_tree *D, struct tree_var_value **V) {
-  if (!O || !D) {
-    assert (!O && !D);
-    return;
-  }
-  if (O->act == act_field) {
-    struct tl_type *t = tl_tree_get_type (O->left);
-    if (t && (!strcmp (t->id, "#") || !strcmp (t->id, "Type"))) {
-      tl_set_var_value (V, O, D);
-    }
-  }
-  if (O->act == act_var) {
-    assert (D->data == O->data);
-    D->data = tl_get_var_value (V, O->data);
-    assert (D->data);
-  }
-  change_var_ptrs (O->left, D->left, V);
-  change_var_ptrs (O->right, D->right, V);
-}
-
-struct tl_combinator_tree *change_first_var (struct tl_combinator_tree *O, struct tl_combinator_tree **X, struct tl_combinator_tree *Y) {
-  if (!O) { return (void *)-2l; };
-  if (O->act == act_field && !*X) {
-    struct tl_type *t = tl_tree_get_type (O->left);
-    if (t && !strcmp (t->id, "#")) {
-      if (Y->type != type_num && Y->type != type_num_value) {
-        TL_ERROR ("change_var: Type mistmatch\n");
-        return 0;
-      } else {
-        *X = O;
-        return (void *)-1l;
-      }
-    }
-    if (t && !strcmp (t->id, "Type")) {
-      if (Y->type != type_type || Y->type_len != 0) {
-        TL_ERROR ("change_var: Type mistmatch\n");
-        return 0;
-      } else {
-        *X = O;
-        return (void *)-1l;
-      }
-    }
-  }
-  if (O->act == act_var) {
-    if (O->data == *X) {
-      struct tl_combinator_tree *R = tl_tree_dup (Y);
-      if (O->type == type_num || O->type == type_num_value) { R->type_flags += O->type_flags; }
-      return R;      
-    }
-  }
-  struct tl_combinator_tree *t;
-  t = change_first_var (O->left, X, Y);
-  if (!t) { return 0;}
-  if (t == (void *)-1l) {
-    t = change_first_var (O->right, X, Y);
-    if (!t) { return 0;}
-    if (t == (void *)-1l) { return (void *)-1l; }
-    if (t != (void *)-2l) { return t;}
-    return (void *)-1l;   
-  }
-  if (t != (void *)-2l) {
-    O->left = t;
-  }
-  t = change_first_var (O->right, X, Y);
-  if (!t) { return 0;}
-  if (t == (void *)-1l) {
-    return O->left;   
-  }
-  if (t != (void *)-2l) {
-    O->right = t;
-  }
-  return O;
-}
-
-
-int uniformize (struct tl_combinator_tree *L, struct tl_combinator_tree *R, struct tree_var_value **T);
-struct tree_var_value **_T;
-int __tok;
-void check_nat_val (struct tl_var_value v) {
-  if (!__tok) { return; }
-  long long x = v.num_val;
-  struct tl_combinator_tree *L = v.val;
-  if (L->type == type_type) { return;}
-  while (1) {
-    if (L->type == type_num_value) {
-      if (x + L->type_flags < 0) {
-        __tok = 0;
-        return;
-      } else {
-        return;
-      }
-    }
-    assert (L->type == type_num);
-    x += L->type_flags;
-    x += tl_get_var_value_num (_T, L->data);
-    L = tl_get_var_value (_T, L->data);
-    if (!L) { return;}
-  }
-}
-
-int check_constructors_equal (struct tl_combinator_tree *L, struct tl_combinator_tree *R, struct tree_var_value **T) {
-  if (!uniformize (L, R, T)) { return 0; }
-  __tok = 1;
-  _T = T;
-  tree_act_var_value (*T, check_nat_val);
-  return __tok;
-}
-
-struct tl_combinator_tree *reduce_type (struct tl_combinator_tree *A, struct tl_type *t) {
-  assert  (A);
-  if (A->type_len == t->params_num) {
-    assert (A->type_flags == t->params_types);
-    A->act = act_type;
-    A->type = type_type;
-    A->left = A->right = 0;
-    A->data = t;
-    return A;
-  }
-  A->left = reduce_type (A->left, t);
-  return A;
-}
-
-struct tl_combinator_tree *change_value_var (struct tl_combinator_tree *O, struct tree_var_value **X) {
-  if (!O) { return (void *)-2l; };
-  while (O->act == act_var) {
-    assert (O->data);
-    if (!tl_get_var_value (X, O->data)) {
-      break;
-    }
-    if (O->type == type_type) {
-      O = tl_tree_dup (tl_get_var_value (X, O->data));
-    } else {
-      long long n = tl_get_var_value_num (X, O->data);
-      struct tl_combinator_tree *T = tl_get_var_value (X, O->data);
-      O->data = T->data;
-      O->type = T->type;
-      O->act = T->act;
-      O->type_flags = O->type_flags + n + T->type_flags;
-    }
-  }
-  if (O->act == act_field) {
-    if (tl_get_var_value (X, O)) { return (void *)-1l; }
-  }
-  struct tl_combinator_tree *t;
-  t = change_value_var (O->left, X);
-  if (!t) { return 0;}
-  if (t == (void *)-1l) {
-    t = change_value_var (O->right, X);
-    if (!t) { return 0;}
-    if (t == (void *)-1l) { return (void *)-1l; }
-    if (t != (void *)-2l) { return t;}
-    return (void *)-1l;   
-  }
-  if (t != (void *)-2l) {
-    O->left = t;
-  }
-  t = change_value_var (O->right, X);
-  if (!t) { return 0;}
-  if (t == (void *)-1l) {
-    return O->left;   
-  }
-  if (t != (void *)-2l) {
-    O->right = t;
-  }
-  return O;
-}
-
-int tl_parse_partial_type_app_decl (struct tree *T) {
-  assert (T->type == type_partial_type_app_decl);
-  assert (T->nc >= 1);
-
-  assert (T->c[0]->type == type_boxed_type_ident);
-  struct tl_type *t = tl_get_type (T->c[0]->text, T->c[0]->len);
-  if (!t) {
-    TL_ERROR ("Can not make partial app for unknown type\n");
-    return 0;
-  }
-
-  tl_type_finalize (t);
-
-  struct tl_combinator_tree *L = tl_parse_ident (T->c[0], 0);
-  assert (L);
-  int i;
-  tl_buf_reset ();
-  int cc = T->nc - 1;
-  for (i = 1; i < T->nc; i++) {
-    TL_TRY (tl_parse_any_term (T->c[i], 0), L);
-    tl_buf_add_tree (L->right, 1);
-  }
-
-  while (L->type_len) {
-    struct tl_combinator_tree *C = alloc_ctree_node ();
-    C->act = act_var;
-    C->type = (L->type_flags & 1) ? type_num : type_type;
-    C->type_len = 0;
-    C->type_flags = 0;
-    C->data = (void *)-1l;
-    L = tl_union (L, C);
-    if (!L) { return 0; }
-  }
-
-
-  static char _buf[100000];
-  snprintf (_buf, 100000, "%s%.*s", t->id, buf_pos, buf);
-  struct tl_type *nt = tl_add_type (_buf, strlen (_buf), t->params_num - cc, t->params_types >> cc);
-  assert (nt);
-  //snprintf (_buf, 100000, "%s #", t->id);
-  //nt->real_id = strdup (_buf);
- 
-  for (i = 0; i < t->constructors_num; i++) {
-    struct tl_constructor *c = t->constructors[i];
-    struct tree_var_value *V = 0;
-    TL_INIT (A);
-    TL_INIT (B);
-    A = tl_tree_dup (c->left);
-    B = tl_tree_dup (c->right);
-   
-    struct tree_var_value *W = 0;
-    change_var_ptrs (c->left, A, &W);
-    change_var_ptrs (c->right, B, &W);
-
-
-    if (!check_constructors_equal (B, L, &V)) { continue; }
-    B = reduce_type (B, nt);
-    A = change_value_var (A, &V);
-    if (A == (void *)-1l) { A = 0;}
-    B = change_value_var (B, &V);
-    assert (B != (void *)-1l);
-    snprintf (_buf, 100000, "%s%.*s", c->id, buf_pos, buf);
-
-    struct tl_constructor *r = tl_add_constructor (nt, _buf, strlen (_buf), 1);
-    snprintf (_buf, 100000, "%s", c->id);
-    r->real_id = tstrdup (_buf);
-   
-    r->left = A;
-    r->right = B;
-    if (!r->name) {
-      tl_count_combinator_name (r);
-    }
-    tl_print_combinator (r);
-  }
-
-  return 1;
-}
-
-int tl_parse_partial_comb_app_decl (struct tree *T, int fun) {
-  assert (T->type == type_partial_comb_app_decl);
-
-  struct tl_constructor *c = !fun ? tl_get_constructor (T->c[0]->text, T->c[0]->len) : tl_get_function (T->c[0]->text, T->c[0]->len);
-  if (!c) {
-    TL_ERROR ("Can not make partial app for undefined combinator\n");
-    return 0;
-  }
-
-  //TL_INIT (K);
-  //static char buf[1000];
-  //int x = sprintf (buf, "%s", c->id);
-  TL_INIT (L);
-  TL_INIT (R);
-  L = tl_tree_dup (c->left);
-  R = tl_tree_dup (c->right);
- 
- 
-  struct tree_var_value *V = 0;
-  change_var_ptrs (c->left, L, &V);
-  change_var_ptrs (c->right, R, &V);
-  V = tree_clear_var_value (V);
-
-  int i;
-  tl_buf_reset ();
-  for (i = 1; i < T->nc; i++) {
-    TL_INIT (X);
-    TL_INIT (Z);
-    X = tl_parse_any_term (T->c[i], 0);
-    struct tl_combinator_tree *K = 0;
-    if (!(Z = change_first_var (L, &K, X))) {    
-      TL_FAIL;
-    }
-    L = Z;
-    if (!K) {
-      TL_ERROR ("Partial app: not enougth variables (i = %d)\n", i);
-      TL_FAIL;
-    }
-    if (!(Z = change_first_var (R, &K, X))) {
-      TL_FAIL;
-    }
-    assert (Z == R);
-    tl_buf_add_tree (X, 1);
-  }
-
-  static char _buf[100000];
-  snprintf (_buf, 100000, "%s%.*s", c->id, buf_pos, buf);
-//  fprintf (stderr, "Local id: %s\n", _buf);
-
-  struct tl_constructor *r = !fun ? tl_add_constructor (c->type, _buf, strlen (_buf), 1) : tl_add_function (c->type, _buf, strlen (_buf), 1);
-  r->left = L;
-  r->right = R;
-  snprintf (_buf, 100000, "%s", c->id);
-  r->real_id = tstrdup (_buf);
-  if (!r->name) {
-    tl_count_combinator_name (r);
-  }
-  tl_print_combinator (r);
-  return 1;
-}
-
-
-int tl_parse_partial_app_decl (struct tree *T, int fun) {
-  assert (T->type == type_partial_app_decl);
-  assert (T->nc == 1);
-  if (T->c[0]->type == type_partial_comb_app_decl) {
-    return tl_parse_partial_comb_app_decl (T->c[0], fun);
-  } else {
-    if (fun) {
-      TL_ERROR ("Partial type app in functions block\n");
-      TL_FAIL;
-    }
-    return tl_parse_partial_type_app_decl (T->c[0]);
-  }
-}
-
-int tl_parse_final_final (struct tree *T) {
-  assert (T->type == type_final_final);
-  assert (T->nc == 1);
-  struct tl_type *R;
-  if ((R = tl_get_type (T->c[0]->text, T->c[0]->len))) {
-    R->flags |= 1;
-    return 1;
-  } else {
-    TL_ERROR ("Final statement for type `%.*s` before declaration\n", T->c[0]->len, T->c[0]->text);
-    TL_FAIL;
-  }
-}
-
-int tl_parse_final_new (struct tree *T) {
-  assert (T->type == type_final_new);
-  assert (T->nc == 1);
-  if (tl_get_type (T->c[0]->text, T->c[0]->len)) {
-    TL_ERROR ("New statement: type `%.*s` already declared\n", T->c[0]->len, T->c[0]->text);
-    TL_FAIL;
-  } else {
-    return 1;
-  }
-}
-
-int tl_parse_final_empty (struct tree *T) {
-  assert (T->type == type_final_empty);
-  assert (T->nc == 1);
-  if (tl_get_type (T->c[0]->text, T->c[0]->len)) {
-    TL_ERROR ("New statement: type `%.*s` already declared\n", T->c[0]->len, T->c[0]->text);
-    TL_FAIL;
-  }
-  struct tl_type *t = tl_add_type (T->c[0]->text, T->c[0]->len, 0, 0);
-  assert (t);
-  t->flags |= 1 | FLAG_EMPTY;
-  return 1;
-}
-
-int tl_parse_final_decl (struct tree *T, int fun) {
-  assert (T->type == type_final_decl);
-  assert (!fun);
-  assert (T->nc == 1);
-  switch (T->c[0]->type) {
-  case type_final_new:
-    return tl_parse_final_new (T->c[0]);
-  case type_final_final:
-    return tl_parse_final_final (T->c[0]);
-  case type_final_empty:
-    return tl_parse_final_empty (T->c[0]);
-  default:
-    assert (0);
-    return 0;
-  }
-}
-
-int tl_parse_builtin_combinator_decl (struct tree *T, int fun) {
-  if (fun) {
-    TL_ERROR ("Builtin type can not be described in function block\n");
-    return -1;
-  }
-  assert (T->type == type_builtin_combinator_decl);
-  assert (T->nc == 2);
-  assert (T->c[0]->type == type_full_combinator_id);
-  assert (T->c[1]->type == type_boxed_type_ident);
-
-
-  if ((!mystrcmp2 (T->c[0]->text, T->c[0]->len, "int") && !mystrcmp2 (T->c[1]->text, T->c[1]->len, "Int")) ||
-      (!mystrcmp2 (T->c[0]->text, T->c[0]->len, "long") && !mystrcmp2 (T->c[1]->text, T->c[1]->len, "Long")) ||
-      (!mystrcmp2 (T->c[0]->text, T->c[0]->len, "double") && !mystrcmp2 (T->c[1]->text, T->c[1]->len, "Double")) ||
-      (!mystrcmp2 (T->c[0]->text, T->c[0]->len, "object") && !mystrcmp2 (T->c[1]->text, T->c[1]->len, "Object")) ||
-      (!mystrcmp2 (T->c[0]->text, T->c[0]->len, "function") && !mystrcmp2 (T->c[1]->text, T->c[1]->len, "Function")) ||
-      (!mystrcmp2 (T->c[0]->text, T->c[0]->len, "string") && !mystrcmp2 (T->c[1]->text, T->c[1]->len, "String"))) {
-    struct tl_type *t = tl_add_type (T->c[1]->text, T->c[1]->len, 0, 0);
-    if (!t) {
-      return 0;
-    }
-    struct tl_constructor *c = tl_add_constructor (t, T->c[0]->text, T->c[0]->len, 0);
-    if (!c) {
-      return 0;
-    }
-   
-    c->left = alloc_ctree_node ();
-    c->left->act = act_question_mark;
-    c->left->type = type_list_item;
-
-    c->right = alloc_ctree_node ();
-    c->right->act = act_type;
-    c->right->data = t;
-    c->right->type = type_type;
-
-    if (!c->name) {
-      tl_count_combinator_name (c);
-    }
-    tl_print_combinator (c);
-  } else {
-    TL_ERROR ("Unknown builting type `%.*s`\n", T->c[0]->len, T->c[0]->text);
-    return 0;
-  }
-
-  return 1;
-}
-
-int tl_parse_declaration (struct tree *T, int fun) {
-  assert (T->type == type_declaration);
-  assert (T->nc == 1);
-  switch (T->c[0]->type) {
-  case type_combinator_decl:
-    return tl_parse_combinator_decl (T->c[0], fun);
-  case type_partial_app_decl:
-    return tl_parse_partial_app_decl (T->c[0], fun);
-  case type_final_decl:
-    return tl_parse_final_decl (T->c[0], fun);
-  case type_builtin_combinator_decl:
-    return tl_parse_builtin_combinator_decl (T->c[0], fun);
-  default:
-    assert (0);
-    return 0;
-  }
-}
-
-int tl_parse_constr_declarations (struct tree *T) {
-  assert (T->type == type_constr_declarations);
-  int i;
-  for (i = 0; i < T->nc; i++) {
-    TL_TRY_PES (tl_parse_declaration (T->c[i], 0));
-  }
-  return 1;
-}
-
-int tl_parse_fun_declarations (struct tree *T) {
-  assert (T->type == type_fun_declarations);
-  int i;
-  for (i = 0; i < T->nc; i++) {
-    TL_TRY_PES (tl_parse_declaration (T->c[i], 1));
-  }
-  return 1;
-}
-
-int tl_tree_lookup_value (struct tl_combinator_tree *L, void *var, struct tree_var_value **T) {
-  if (!L) {
-    return -1;
-  }
-  if (L->act == act_var && L->data == var) {
-    return 0;
-  }
-  if (L->act == act_var) {
-    struct tl_combinator_tree *E = tl_get_var_value (T, L->data);
-    if (!E) { return -1;}
-    else { return tl_tree_lookup_value (E, var, T); }
-  }
-  if (tl_tree_lookup_value (L->left, var, T) >= 0) { return 1; }
-  if (tl_tree_lookup_value (L->right, var, T) >= 0) { return 1; }
-  return -1;
-}
-
-int tl_tree_lookup_value_nat (struct tl_combinator_tree *L, void *var, long long x, struct tree_var_value **T) {
-  assert (L);
-  if (L->type == type_num_value) { return -1; }
-  assert (L->type == type_num);
-  assert (L->act == act_var);
-  if (L->data == var) {
-    return x == L->type_flags ? 0 : 1;
-  } else {
-    if (!tl_get_var_value (T, L->data)) {
-      return -1;
-    }
-    return tl_tree_lookup_value_nat (tl_get_var_value (T, L->data), var, x + tl_get_var_value_num (T, L->data), T);
-  }
-
-}
-
-int uniformize (struct tl_combinator_tree *L, struct tl_combinator_tree *R, struct tree_var_value **T) {
-  if (!L || !R) {
-    assert (!L && !R);
-    return 1;
-  }
-  if (R->act == act_var) {
-    struct tl_combinator_tree *_ = R; R = L; L = _;
-  }
- 
-  if (L->type == type_type) {
-    if (R->type != type_type || L->type_len != R->type_len || L->type_flags != R->type_flags) {
-      return 0;
-    }
-    if (R->data == (void *)-1l || L->data == (void *)-1l) { return 1;}
-    if (L->act == act_var) {
-      int x = tl_tree_lookup_value (R, L->data, T);
-      if (x > 0) {
-//      if (tl_tree_lookup_value (R, L->data, T) > 0) {
-        return 0;
-      }
-      if (x == 0) {
-        return 1;
-      }
-      struct tl_combinator_tree *E = tl_get_var_value (T, L->data);
-      if (!E) {
-        tl_set_var_value (T, L->data, R);
-        return 1;
-      } else {
-        return uniformize (E, R, T);
-      }
-    } else {
-      if (L->act != R->act || L->data != R->data) {
-        return 0;
-      }
-      return uniformize (L->left, R->left, T) && uniformize (L->right, R->right, T);
-    }
-  } else {
-    assert (L->type == type_num || L->type == type_num_value);
-    if (R->type != type_num && R->type != type_num_value) {
-      return 0;
-    }
-    assert (R->type == type_num || R->type == type_num_value);
-    if (R->data == (void *)-1l || L->data == (void *)-1l) { return 1;}
-    long long x = 0;
-    struct tl_combinator_tree *K = L;
-    while (1) {
-      x += K->type_flags;
-      if (K->type == type_num_value) {
-        break;
-      }
-      if (!tl_get_var_value (T, K->data)) {
-        int s = tl_tree_lookup_value_nat (R, K->data, K->type_flags, T);
-        if (s > 0) {
-          return 0;
-        }
-        if (s == 0) {
-          return 1;
-        }
-        /*tl_set_var_value_num (T, K->data, R, -x);
-        return 1;*/
-        break;
-      }
-      x += tl_get_var_value_num (T, K->data);
-      K = tl_get_var_value (T, K->data);
-    }
-    long long y = 0;
-    struct tl_combinator_tree *M = R;
-    while (1) {
-      y += M->type_flags;
-      if (M->type == type_num_value) {
-        break;
-      }
-      if (!tl_get_var_value (T, M->data)) {
-        int s = tl_tree_lookup_value_nat (L, M->data, M->type_flags, T);
-        if (s > 0) {
-          return 0;
-        }
-        if (s == 0) {
-          return 1;
-        }
-        /*tl_set_var_value_num (T, M->data, L, -y);
-        return 1;*/
-        break;
-      }
-      y += tl_get_var_value_num (T, M->data);
-      M = tl_get_var_value (T, M->data);
-    }
-    if (K->type == type_num_value && M->type == type_num_value) {
-      return x == y;     
-    }
-    if (M->type == type_num_value) {
-      tl_set_var_value_num (T, K->data, M, -(x - y + M->type_flags));
-      return 1;     
-    } else if (K->type == type_num_value) {
-      tl_set_var_value_num (T, M->data, K, -(y - x + K->type_flags));
-      return 1;     
-    } else {
-      if (x >= y) {
-        tl_set_var_value_num (T, K->data, M, -(x - y + M->type_flags));
-      } else {
-        tl_set_var_value_num (T, M->data, K, -(y - x + K->type_flags));
-      }
-      return 1;
-    }
-  }
-  return 0;
-}
-
-
-void tl_type_check (struct tl_type *t) {
-  if (!__ok) return;
-  if (!strcmp (t->id, "#")) { t->name = 0x70659eff; return; }
-  if (!strcmp (t->id, "Type")) { t->name = 0x2cecf817; return; }
-  if (t->constructors_num <= 0 && !(t->flags & FLAG_EMPTY)) { 
-    TL_ERROR ("Type %s has no constructors\n", t->id);
-    __ok = 0;
-    return;
-  }
-  int i, j;
-  t->name = 0;
-  for (i = 0; i < t->constructors_num; i++) {
-    t->name ^= t->constructors[i]->name;
-  }
-  for (i = 0; i < t->constructors_num; i++) {
-    for (j = i + 1; j < t->constructors_num; j++) {
-      struct tree_var_value *v = 0;
-      if (check_constructors_equal (t->constructors[i]->right, t->constructors[j]->right, &v)) {
-        t->flags |= 16;
-      }
-    }
-  }
-  if ((t->flags & 24) == 24) {
-    TL_WARNING ("Warning: Type %s has overlapping costructors, but it is used with `%%`\n", t->id);   
-  }
-  int z = 0;
-  int sid = 0;
-  for (i = 0; i < t->constructors_num; i++) if (*t->constructors[i]->id == '_') {
-    z ++;
-    sid = i;
-  }
-  if (z > 1) {
-    TL_ERROR ("Type %s has %d default constructors\n", t->id, z);
-    __ok = 0;
-    return;
-  }
-  if (z == 1 && (t->flags & 8)) {
-    TL_ERROR ("Type %s has default constructors and used bare\n", t->id);
-    __ok = 0;
-    return;
-  }
-  if (z) {
-    struct tl_constructor *c;
-    c = t->constructors[sid];
-    t->constructors[sid] = t->constructors[t->constructors_num - 1];
-    t->constructors[t->constructors_num - 1] = c;
-  }
-}
-
-struct tl_program *tl_parse (struct tree *T) {
-  assert (T);
-  assert (T->type == type_tl_program);
-  int i;
-  tl_program_cur = talloc (sizeof (*tl_program_cur));
-  tl_add_type ("#", 1, 0, 0);
-  tl_add_type ("Type", 4, 0, 0);
-  for (i = 0; i < T->nc; i++) {
-    if (T->c[i]->type == type_constr_declarations) { TL_TRY_PES (tl_parse_constr_declarations (T->c[i])); }
-    else { TL_TRY_PES (tl_parse_fun_declarations (T->c[i])) }
-  }
-  __ok = 1;
-  tree_act_tl_type (tl_type_tree, tl_type_check);
-  if (!__ok) {
-    return 0;
-  }
-  return tl_program_cur;
-}
-
-FILE *__f;
-int num = 0;
-
-void wint (int a) {
-//  printf ("%d ", a);
-  a = htole32 (a);
-  assert (fwrite (&a, 1, 4, __f) == 4);
-}
-
-void wdata (const void *x, int len) {
-  assert (fwrite (x, 1, len, __f) == len);
-}
-
-void wstr (const char *s) {
-  if (s) {
-//    printf ("\"%s\" ", s);
-    int x = strlen (s);
-    if (x <= 254) {
-      unsigned char x_c = (unsigned char)x;
-      assert (fwrite (&x_c, 1, 1, __f) == 1);
-    } else {
-      fprintf (stderr, "String is too big...\n");
-      assert (0);
-    }
-    wdata (s, x);
-    x ++; // The header, containing the length, which is 1 byte
-    int t = 0;
-    if (x & 3) {
-      // Let's hope it's truly zero on every platform
-      wdata (&t, 4 - (x & 3));
-    }
-  } else {
-//    printf ("<none> ");
-    wint (0);
-  }
-}
-
-void wll (long long a) {
-//  printf ("%lld ", a);
-  a = htole64 (a);
-  assert (fwrite (&a, 1, 8, __f) == 8);
-}
-
-int count_list_size (struct tl_combinator_tree *T) {
-  assert (T->type == type_list || T->type == type_list_item);
-  if (T->type == type_list_item) {
-    return 1;
-  } else {
-    return count_list_size (T->left) + count_list_size (T->right);
-  }
-}
-
-void write_type_flags (long long flags) {
-  int new_flags = 0;
-  if (flags & 1) {
-    new_flags |= FLAG_BARE;
-  }
-  if (flags & FLAG_DEFAULT_CONSTRUCTOR) {
-    new_flags |= FLAG_DEFAULT_CONSTRUCTOR;
-  }
-  wint (new_flags);
-}
-
-void write_field_flags (long long flags) {
-  int new_flags = 0;
-  //fprintf (stderr, "%lld\n", flags);
-  if (flags & 1) {
-    new_flags |= FLAG_BARE;
-  }
-  if (flags & 32) {
-    new_flags |= FLAG_OPT_VAR;
-  }
-  if (flags & FLAG_EXCL) {
-    new_flags |= FLAG_EXCL;
-  }
-  if (flags & FLAG_OPT_FIELD) {
-   // new_flags |= FLAG_OPT_FIELD;
-    new_flags |= 2;
-  }
-  if (flags & (1 << 21)) {
-    new_flags |= 4;
-  }
-  wint (new_flags);
-}
-
-void write_var_type_flags (long long flags) {
-  int new_flags = 0;
-  if (flags & 1) {
-    new_flags |= FLAG_BARE;
-  }
-  if (new_flags & FLAG_BARE) {
-    TL_ERROR ("Sorry, bare vars are not (yet ?) supported.\n");
-    assert (!(new_flags & FLAG_BARE));
-  }
-  wint (new_flags);
-}
-
-void write_tree (struct tl_combinator_tree *T, int extra, struct tree_var_value **v, int *last_var);
-void write_args (struct tl_combinator_tree *T, struct tree_var_value **v, int *last_var) {
-  assert (T->type == type_list || T->type == type_list_item);
-  if (T->type == type_list) {
-    assert (T->act == act_union);
-    assert (T->left);
-    assert (T->right);
-    write_args (T->left, v, last_var);
-    write_args (T->right, v, last_var);
-    return;
-  }
-  wint (TLS_ARG_V2);
-  assert (T->act == act_field);
-  assert (T->left);
-  wstr (T->data && strcmp (T->data, "_") ? T->data : 0);
-  long long f = T->flags;
-  if (T->left->act == act_opt_field) {
-    f |= (1 << 20);
-  }
-  if (T->left->act == act_type && T->left->data && (!strcmp (((struct tl_type *)T->left->data)->id, "#") || !strcmp (((struct tl_type *)T->left->data)->id, "Type"))) {
-    write_field_flags (f | (1 << 21));
-    wint (*last_var);
-    *last_var = (*last_var) + 1;
-    tl_set_var_value_num (v, T, 0, (*last_var) - 1);
-  } else {
-    write_field_flags (f);
-  } 
-  write_tree (T->left, 0, v, last_var);
-}
-
-void write_array (struct tl_combinator_tree *T, struct tree_var_value **v, int *last_var) {
-  wint (TLS_ARRAY);
-  write_tree (T->left, 0, v, last_var);
-  write_tree (T->right, 0, v, last_var);
-}
-
-void write_type_rec (struct tl_combinator_tree *T, int cc, struct tree_var_value **v, int *last_var) {
-  if (T->act == act_arg) {
-    write_type_rec (T->left, cc + 1, v, last_var);
-    if (T->right->type == type_num_value || T->right->type == type_num) {
-      wint (TLS_EXPR_NAT);
-    } else {
-      wint (TLS_EXPR_TYPE);
-    }
-    write_tree (T->right, 0, v, last_var);
-  } else {
-    assert (T->act == act_var || T->act == act_type);
-    if (T->act == act_var) {
-      assert (!cc);
-      wint (TLS_TYPE_VAR);
-      wint (tl_get_var_value_num (v, T->data));
-      write_var_type_flags (T->flags);
-      //wint (T->flags);
-    } else {
-      wint (TLS_TYPE_EXPR);
-      struct tl_type *t = T->data;
-      wint (t->name);
-      write_type_flags (T->flags);
-//      wint (T->flags);
-      wint (cc);
-//      fprintf (stderr, "cc = %d\n", cc);
-    }
-  }
-}
-
-void write_opt_type (struct tl_combinator_tree *T, struct tree_var_value **v, int *last_var) {
-  wint (tl_get_var_value_num (v, T->left->data));
-  wint (T->left->type_flags);
-//  write_tree (T->right, 0, v, last_var);
-  assert (T);
-  T = T->right;
-  switch (T->type) {
-  case type_type:
-    if (T->act == act_array) {
-      write_array (T, v, last_var);
-    } else if (T->act == act_type || T->act == act_var || T->act == act_arg) {
-      write_type_rec (T, 0, v, last_var);
-    } else {
-      assert (0);
-    }
-    break;
-  default:
-    assert (0);
-  }
-}
-
-void write_tree (struct tl_combinator_tree *T, int extra, struct tree_var_value **v, int *last_var) {
-  assert (T);
-  switch (T->type) {
-  case type_list_item:
-  case type_list:
-    if (extra) {
-      wint (TLS_COMBINATOR_RIGHT_V2);
-    }
-    wint (count_list_size (T));
-    write_args (T, v, last_var);
-    break;
-  case type_num_value:
-    wint ((int)TLS_NAT_CONST);
-    wint (T->type_flags);
-    break;
-  case type_num:
-    wint ((int)TLS_NAT_VAR);
-    wint (T->type_flags);
-    wint (tl_get_var_value_num (v, T->data));
-    break;
-  case type_type:
-    if (T->act == act_array) {
-      write_array (T, v, last_var);
-    } else if (T->act == act_type || T->act == act_var || T->act == act_arg) {
-      write_type_rec (T, 0, v, last_var);
-    } else {
-      assert (T->act == act_opt_field);
-      write_opt_type (T, v, last_var);
-    }
-    break;
-  default:
-    assert (0);
-  }
-}
-
-void write_type (struct tl_type *t) {
-  wint (TLS_TYPE);
-  wint (t->name);
-  wstr (t->id);
-  wint (t->constructors_num);
-  wint (t->flags);
-  wint (t->params_num);
-  wll (t->params_types);
-}
-
-int is_builtin_type (const char *id) {
-  return !strcmp (id, "int") || !strcmp (id, "long") || !strcmp (id, "double") || !strcmp (id, "string")
-    || !strcmp(id, "object") || !strcmp(id, "function");
-}
-
-void write_combinator (struct tl_constructor *c) {
-  wint (c->name);
-  wstr (c->id);
-  wint (c->type ? c->type->name : 0);
-  struct tree_var_value *T = 0;
-  int x = 0;
-  assert (c->right);
-  if (c->left) {
-    if (is_builtin_type (c->id)) {
-      wint (TLS_COMBINATOR_LEFT_BUILTIN);
-    } else {
-      wint (TLS_COMBINATOR_LEFT);
-      // FIXME: What is that?
-//      wint (count_list_size (c->left));
-      write_tree (c->left, 0, &T, &x);
-    }
-  } else {
-    wint (TLS_COMBINATOR_LEFT);
-    wint (0);
-  }
-  wint (TLS_COMBINATOR_RIGHT_V2);
-  write_tree (c->right, 1, &T, &x);
-}
-
-void write_constructor (struct tl_constructor *c) {
-  wint (TLS_COMBINATOR);
-  write_combinator (c);
-}
-
-void write_function (struct tl_constructor *c) {
-  wint (TLS_COMBINATOR);
-  write_combinator (c);
-}
-
-void write_type_constructors (struct tl_type *t) {
-  int i;
-  for (i = 0; i < t->constructors_num; i++) {
-    write_constructor (t->constructors[i]);
-  }
-}
-
-void write_types (FILE *f) {
-  __f = f;
-  wint (TLS_SCHEMA_V2);
-  wint (0);
-#ifdef TL_PARSER_NEED_TIME
-  wint (time (0));
-#else
-  /* Make the tlo reproducible by default. Rationale: https://wiki.debian.org/ReproducibleBuilds/Howto#Introduction */
-  wint (0);
-#endif
-  num = 0;
-  wint (total_types_num);
-  tree_act_tl_type (tl_type_tree, write_type);
-  wint (total_constructors_num);
-  tree_act_tl_type (tl_type_tree, write_type_constructors);
-  wint (total_functions_num);
-  tree_act_tl_constructor (tl_function_tree, write_function);
-}
diff --git a/third-party/td/td/td/generate/tl-parser/tl-parser.h b/third-party/td/td/td/generate/tl-parser/tl-parser.h
deleted file mode 100644
index 59209d4a55..0000000000
--- a/third-party/td/td/td/generate/tl-parser/tl-parser.h
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
-    This file is part of tgl-libary/tlc
-
-    Tgl-library/tlc is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
-
-    Tgl-library/tlc is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this tgl-library/tlc.  If not, see <http://www.gnu.org/licenses/>.
-
-    Copyright Vitaly Valtman 2014
-
-    It is derivative work of VK/KittenPHP-DB-Engine (https://github.com/vk-com/kphp-kdb/)
-    Copyright 2012-2013 Vkontakte Ltd
-              2012-2013 Vitaliy Valtman
-
-*/
-
-#ifndef __TL_PARSER_NEW_H__
-#define __TL_PARSER_NEW_H__
-
-#include <stdio.h>
-
-enum lex_type {
-  lex_error,
-  lex_char, 
-  lex_triple_minus,
-  lex_uc_ident,
-  lex_lc_ident,
-  lex_eof,
-  lex_final,
-  lex_new,
-  lex_none,
-  lex_num,
-  lex_empty
-};
-
-
-struct curlex {
-  char *ptr;
-  int len;
-  enum lex_type type;
-  int flags;
-};
-
-struct parse {
-  char *text;
-  int pos;
-  int len;
-  int line;
-  int line_pos;
-  struct curlex lex;
-};
-
-
-enum tree_type {
-  type_tl_program,
-  type_fun_declarations,
-  type_constr_declarations,
-  type_declaration,
-  type_combinator_decl,
-  type_equals,
-  type_partial_app_decl,
-  type_final_decl,
-  type_full_combinator_id,
-  type_opt_args,
-  type_args,
-  type_args1,
-  type_args2,
-  type_args3,
-  type_args4,
-  type_boxed_type_ident,
-  type_subexpr,
-  type_partial_comb_app_decl,
-  type_partial_type_app_decl,
-  type_final_new,
-  type_final_final,
-  type_final_empty,
-//  type_type,
-  type_var_ident,
-  type_var_ident_opt,
-  type_multiplicity,
-  type_type_term,
-  type_term,
-  type_percent,
-  type_result_type,
-  type_expr,
-  type_nat_term,
-  type_combinator_id,
-  type_nat_const,
-  type_type_ident,
-  type_builtin_combinator_decl,
-  type_exclam,
-  type_optional_arg_def
-};
-
-struct tree {
-  char *text;
-  int len;
-  enum tree_type type;
-  int lex_line;
-  int lex_line_pos;
-  int flags;
-  int size;
-  int nc;
-  struct tree **c;
-};
-
-
-#define TL_ACT(x) (x == act_var ? "act_var" : x == act_field ? "act_field" : x == act_plus ? "act_plus" : x == act_type ? "act_type" : x == act_nat_const ? "act_nat_const" : x == act_array ? "act_array" : x == act_question_mark ? "act_question_mark" : \
-    x == act_union ? "act_union" : x == act_arg ? "act_arg" : x == act_opt_field ? "act_opt_field" : "act_unknown")
-
-#define TL_TYPE(x) (x == type_num ? "type_num" : x == type_type ? "type_type" : x == type_list_item ? "type_list_item" : x == type_list ? "type_list" : x == type_num_value ? "type_num_value" : "type_unknown")
-enum combinator_tree_action {
-  act_var,
-  act_field,
-  act_plus,
-  act_type,
-  act_nat_const,
-  act_array,
-  act_question_mark,
-  act_union,
-  act_arg,
-  act_opt_field
-};
-
-enum combinator_tree_type {
-  type_num,
-  type_num_value,
-  type_type,
-  type_list_item,
-  type_list
-};
-
-struct tl_combinator_tree {
-  enum combinator_tree_action act;
-  struct tl_combinator_tree *left, *right;
-  char *name;
-  void *data;
-  long long flags;
-  enum combinator_tree_type type;
-  int type_len;
-  long long type_flags;
-};
-
-
-struct tl_program {
-  int types_num;
-  int functions_num;
-  int constructors_num;
-  struct tl_type **types;
-  struct tl_function **functions;
-//  struct tl_constuctor **constructors;
-};
-
-struct tl_type {
-  char *id;
-  char *print_id;
-  char *real_id;
-  unsigned name;
-  int flags;
-
-  int params_num;  
-  long long params_types;
-
-  int constructors_num;
-  struct tl_constructor **constructors;
-};
-
-struct tl_constructor {
-  char *id;
-  char *print_id;
-  char *real_id;
-  unsigned name;
-  struct tl_type *type;
-
-  struct tl_combinator_tree *left;
-  struct tl_combinator_tree *right;
-};
-
-struct tl_var {
-  char *id;
-  struct tl_combinator_tree *ptr;
-  int type;
-  int flags;
-};
-
-struct parse *tl_init_parse_file (const char *fname);
-struct tree *tl_parse_lex (struct parse *P);
-void tl_print_parse_error (void);
-struct tl_program *tl_parse (struct tree *T);
-
-void write_types (FILE *f);
-
-#define FLAG_BARE 1
-#define FLAG_OPT_VAR (1 << 17)
-#define FLAG_EXCL (1 << 18)
-#define FLAG_OPT_FIELD (1 << 20)
-#define FLAG_IS_VAR (1 << 21)
-#define FLAG_DEFAULT_CONSTRUCTOR (1 << 25)
-#define FLAG_EMPTY (1 << 10)
-
-#ifdef NDEBUG
-#undef assert
-#define assert(x) if (!(x)) { fprintf(stderr, "Assertion error!\n"); abort(); }
-#endif
-
-#ifdef _WIN32
-#include "wgetopt.h"
-
-#define __attribute__(x)
-
-#define lrand48() rand()
-#define strdup _strdup
-#endif
-
-#endif
diff --git a/third-party/td/td/td/generate/tl-parser/tl-tl.h b/third-party/td/td/td/generate/tl-parser/tl-tl.h
deleted file mode 100644
index 8bc0a707bc..0000000000
--- a/third-party/td/td/td/generate/tl-parser/tl-tl.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
-    This file is part of VK/KittenPHP-DB-Engine.
-
-    VK/KittenPHP-DB-Engine is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
-
-    VK/KittenPHP-DB-Engine is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with VK/KittenPHP-DB-Engine.  If not, see <http://www.gnu.org/licenses/>.
-
-    This program is released under the GPL with the additional exemption
-    that compiling, linking, and/or using OpenSSL is allowed.
-    You are free to remove this exemption from derived works.
-
-    Copyright 2012-2013 Vkontakte Ltd
-              2012-2013 Vitaliy Valtman
-*/
-
-#ifndef __TL_TL_H__
-#define __TL_TL_H__
-
-// Current tl-tl schema is V2
-// See https://core.telegram.org/mtproto/TL-tl
-
-#define TLS_SCHEMA_V2 0x3a2f9be2
-#define TLS_TYPE 0x12eb4386
-#define TLS_COMBINATOR 0x5c0a1ed5
-#define TLS_COMBINATOR_LEFT_BUILTIN 0xcd211f63
-#define TLS_COMBINATOR_LEFT 0x4c12c6d9
-#define TLS_COMBINATOR_RIGHT_V2 0x2c064372
-#define TLS_ARG_V2 0x29dfe61b
-
-#define TLS_EXPR_TYPE 0xecc9da78
-#define TLS_EXPR_NAT 0xdcb49bd8
-
-#define TLS_NAT_CONST 0xdcb49bd8
-#define TLS_NAT_VAR 0x4e8a14f0
-#define TLS_TYPE_VAR 0x0142ceae
-#define TLS_ARRAY 0xd9fb20de
-#define TLS_TYPE_EXPR 0xc1863d08
-
-/* Deprecated (old versions), read-only */
-#define TLS_TREE_NAT_CONST 0xc09f07d7
-#define TLS_TREE_NAT_VAR 0x90ea6f58
-#define TLS_TREE_TYPE_VAR 0x1caa237a
-#define TLS_TREE_ARRAY 0x80479360
-#define TLS_TREE_TYPE 0x10f32190
-
-#endif
diff --git a/third-party/td/td/td/generate/tl-parser/tlc.c b/third-party/td/td/td/generate/tl-parser/tlc.c
deleted file mode 100644
index 75c7db2f85..0000000000
--- a/third-party/td/td/td/generate/tl-parser/tlc.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
-    This file is part of tl-parser
-
-    tl-parser is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
-
-    tl-parser is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this tl-parser. If not, see <http://www.gnu.org/licenses/>.
-
-    Copyright Vitaly Valtman 2014
-
-    It is derivative work of VK/KittenPHP-DB-Engine (https://github.com/vk-com/kphp-kdb/)
-    Copyright 2012-2013 Vkontakte Ltd
-              2012-2013 Vitaliy Valtman
-
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-
-#include "tl-parser.h"
-
-#ifndef _WIN32
-#include <unistd.h>
-#endif
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include <signal.h>
-
-#ifdef HAVE_EXECINFO_H
-#include <execinfo.h>
-#endif
-#include <stdarg.h>
-
-int verbosity;
-int output_expressions;
-void usage (void) {
-  printf ("usage: tl-parser [-v] [-h] <TL-schema-file>\n"
-      "\tTL compiler\n"
-      "\t-v\toutput statistical and debug information into stderr\n"
-      "\t-E\twhenever is possible output to stdout expressions\n"
-      "\t-e <file>\texport serialized schema to file\n"
-       );
-  exit (2);
-}
-
-int vkext_write (const char *filename) {
-  FILE *f = fopen(filename, "wb");
-  assert (f != NULL);
-  write_types (f);
-  fclose (f);
-  return 0;
-}
-
-void logprintf (const char *format, ...) __attribute__ ((format (printf, 1, 2)));
-void logprintf (const char *format __attribute__ ((unused)), ...) {
-  va_list ap;
-  va_start (ap, format);
-  vfprintf (stderr, format, ap);
-  va_end (ap);
-}
-
-void hexdump (int *in_ptr, int *in_end) {
-  int *ptr = in_ptr;
-  while (ptr < in_end) { printf (" %08x", *(ptr ++)); }
-  printf ("\n");
-}
-
-#ifdef HAVE_EXECINFO_H
-void print_backtrace (void) {
-  void *buffer[255];
-  const int calls = backtrace (buffer, sizeof (buffer) / sizeof (void *));
-  backtrace_symbols_fd (buffer, calls, 1);
-}
-#else
-void print_backtrace (void) {
-  if (fwrite ("No libexec. Backtrace disabled\n", 32, 1, stderr) != 1) {
-    // Sad thing
-  }
-}
-#endif
-
-void sig_segv_handler (int signum __attribute__ ((unused))) {
-  if (fwrite ("SIGSEGV received\n", 18, 1, stderr) != 1) {
-    // Sad thing
-  }
-  print_backtrace ();
-  exit (EXIT_FAILURE);
-}
-
-void sig_abrt_handler (int signum __attribute__ ((unused))) {
-  if (fwrite ("SIGABRT received\n", 18, 1, stderr) != 1) {
-    // Sad thing
-  }
-  print_backtrace ();
-  exit (EXIT_FAILURE);
-}
-
-int main (int argc, char **argv) {
-  signal (SIGSEGV, sig_segv_handler);
-  signal (SIGABRT, sig_abrt_handler);
-  int i;
-  char *vkext_file = 0;
-  while ((i = getopt (argc, argv, "Ehve:w:")) != -1) {
-    switch (i) {
-    case 'E':
-      output_expressions++;
-      break;
-    case 'h':
-      usage ();
-      return 2;
-    case 'e':
-      vkext_file = optarg;
-      break;
-    case 'v':
-      verbosity++;
-      break;
-    }
-  }
-
-  if (argc != optind + 1) {
-    usage ();
-  }
- 
-
-  struct parse *P = tl_init_parse_file (argv[optind]);
-  if (!P) {
-    return 1;
-  }
-  struct tree *T;
-  if (!(T = tl_parse_lex (P))) {
-    fprintf (stderr, "Error in parse:\n");
-    tl_print_parse_error ();
-    return 1;
-  } else {
-    if (verbosity) {
-      fprintf (stderr, "Parse ok\n");
-    }
-    if (!tl_parse (T)) {
-      if (verbosity) {
-        fprintf (stderr, "Fail\n");
-      }
-      return 1;
-    } else {
-      if (verbosity) {
-        fprintf (stderr, "Ok\n");
-      }
-    }
-  }
-  if (vkext_file) {
-    vkext_write (vkext_file);
-  }
-  return 0;
-}
diff --git a/third-party/td/td/td/generate/tl-parser/wgetopt.c b/third-party/td/td/td/generate/tl-parser/wgetopt.c
deleted file mode 100644
index 4557b92112..0000000000
--- a/third-party/td/td/td/generate/tl-parser/wgetopt.c
+++ /dev/null
@@ -1,1274 +0,0 @@
-/* Getopt for GNU.
-NOTE: getopt is now part of the C library, so if you don't know what
-"Keep this file name-space clean" means, talk to drepper@gnu.org
-before changing it!
-Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001
-Free Software Foundation, Inc.
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Lesser General Public
-License as published by the Free Software Foundation; either
-version 2.1 of the License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public
-License along with the GNU C Library; if not, write to the Free
-Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.  */
-
-/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
-Ditto for AIX 3.2 and <stdlib.h>.  */
-#ifndef _NO_PROTO
-# define _NO_PROTO
-#endif
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#if !defined __STDC__ || !__STDC__
-/* This is a separate conditional since some stdc systems
-reject `defined (const)'.  */
-# ifndef const
-#  define const
-# endif
-#endif
-
-#include <stdio.h>
-
-/* Comment out all this code if we are using the GNU C Library, and are not
-actually compiling the library itself.  This code is part of the GNU C
-Library, but also included in many other GNU distributions.  Compiling
-and linking in this code is a waste when using the GNU C library
-(especially if it is a shared library).  Rather than having every GNU
-program understand `configure --with-gnu-libc' and omit the object files,
-it is simpler to just do this in the source for each such file.  */
-
-#define GETOPT_INTERFACE_VERSION 2
-#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
-# include <gnu-versions.h>
-# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
-#  define ELIDE_CODE
-# endif
-#endif
-
-#ifndef ELIDE_CODE
-
-
-/* This needs to come after some library #include
-to get __GNU_LIBRARY__ defined.  */
-#ifdef	__GNU_LIBRARY__
-/* Don't include stdlib.h for non-GNU C libraries because some of them
-contain conflicting prototypes for getopt.  */
-# include <stdlib.h>
-# include <unistd.h>
-#endif	/* GNU C library.  */
-
-#ifdef VMS
-# include <unixlib.h>
-# if HAVE_STRING_H - 0
-#  include <string.h>
-# endif
-#endif
-
-#ifndef _
-/* This is for other GNU distributions with internationalized messages.  */
-# if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC
-#  include <libintl.h>
-#  ifndef _
-#   define _(msgid)	gettext (msgid)
-#  endif
-# else
-#  define _(msgid)	(msgid)
-# endif
-# if defined _LIBC && defined USE_IN_LIBIO
-#  include <wchar.h>
-# endif
-#endif
-
-/* This version of `getopt' appears to the caller like standard Unix `getopt'
-but it behaves differently for the user, since it allows the user
-to intersperse the options with the other arguments.
-
-As `getopt' works, it permutes the elements of ARGV so that,
-when it is done, all the options precede everything else.  Thus
-all application programs are extended to handle flexible argument order.
-
-Setting the environment variable POSIXLY_CORRECT disables permutation.
-Then the behavior is completely standard.
-
-GNU application programs can use a third alternative mode in which
-they can distinguish the relative order of options and other arguments.  */
-
-#include "wgetopt.h"
-
-/* For communication from `getopt' to the caller.
-When `getopt' finds an option that takes an argument,
-the argument value is returned here.
-Also, when `ordering' is RETURN_IN_ORDER,
-each non-option ARGV-element is returned here.  */
-
-char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-This is used for communication to and from the caller
-and for communication between successive calls to `getopt'.
-
-On entry to `getopt', zero means this is the first call; initialize.
-
-When `getopt' returns -1, this is the index of the first of the
-non-option elements that the caller should itself scan.
-
-Otherwise, `optind' communicates from one call to the next
-how much of ARGV has been scanned so far.  */
-
-/* 1003.2 says this must be 1 before any call.  */
-int optind = 1;
-
-/* Formerly, initialization of getopt depended on optind==0, which
-causes problems with re-calling getopt as programs generally don't
-know that. */
-
-int __getopt_initialized;
-
-/* The next char to be scanned in the option-element
-in which the last option character we returned was found.
-This allows us to pick up the scan where we left off.
-
-If this is zero, or a null string, it means resume the scan
-by advancing to the next ARGV-element.  */
-
-static char *nextchar;
-
-/* Callers store zero here to inhibit the error message
-for unrecognized options.  */
-
-int opterr = 1;
-
-/* Set to an option character which was unrecognized.
-This must be initialized on some systems to avoid linking in the
-system's own getopt implementation.  */
-
-int optopt = '?';
-
-/* Describe how to deal with options that follow non-option ARGV-elements.
-
-If the caller did not specify anything,
-the default is REQUIRE_ORDER if the environment variable
-POSIXLY_CORRECT is defined, PERMUTE otherwise.
-
-REQUIRE_ORDER means don't recognize them as options;
-stop option processing when the first non-option is seen.
-This is what Unix does.
-This mode of operation is selected by either setting the environment
-variable POSIXLY_CORRECT, or using `+' as the first character
-of the list of option characters.
-
-PERMUTE is the default.  We permute the contents of ARGV as we scan,
-so that eventually all the non-options are at the end.  This allows options
-to be given in any order, even with programs that were not written to
-expect this.
-
-RETURN_IN_ORDER is an option available to programs that were written
-to expect options and other ARGV-elements in any order and that care about
-the ordering of the two.  We describe each non-option ARGV-element
-as if it were the argument of an option with character code 1.
-Using `-' as the first character of the list of option characters
-selects this mode of operation.
-
-The special argument `--' forces an end of option-scanning regardless
-of the value of `ordering'.  In the case of RETURN_IN_ORDER, only
-`--' can cause `getopt' to return -1 with `optind' != ARGC.  */
-
-static enum
-{
-	REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
-} ordering;
-
-/* Value of POSIXLY_CORRECT environment variable.  */
-static char *posixly_correct;
-
-#ifdef	__GNU_LIBRARY__
-/* We want to avoid inclusion of string.h with non-GNU libraries
-because there are many ways it can cause trouble.
-On some systems, it contains special magic macros that don't work
-in GCC.  */
-# include <string.h>
-# define my_index	strchr
-#else
-
-#define HAVE_STRING_H 1
-# if HAVE_STRING_H
-#  include <string.h>
-# else
-#  include <strings.h>
-# endif
-
-/* Avoid depending on library functions or files
-whose names are inconsistent.  */
-
-#ifndef getenv
-extern char *getenv();
-#endif
-
-static char *
-my_index(str, chr)
-const char *str;
-int chr;
-{
-	while (*str)
-	{
-		if (*str == chr)
-			return (char *)str;
-		str++;
-	}
-	return 0;
-}
-
-/* If using GCC, we can safely declare strlen this way.
-If not using GCC, it is ok not to declare it.  */
-#ifdef __GNUC__
-/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
-That was relevant to code that was here before.  */
-# if (!defined __STDC__ || !__STDC__) && !defined strlen
-/* gcc with -traditional declares the built-in strlen to return int,
-and has done so at least since version 2.4.5. -- rms.  */
-extern int strlen(const char *);
-# endif /* not __STDC__ */
-#endif /* __GNUC__ */
-
-#endif /* not __GNU_LIBRARY__ */
-
-/* Handle permutation of arguments.  */
-
-/* Describe the part of ARGV that contains non-options that have
-been skipped.  `first_nonopt' is the index in ARGV of the first of them;
-`last_nonopt' is the index after the last of them.  */
-
-static int first_nonopt;
-static int last_nonopt;
-
-#ifdef _LIBC
-/* Stored original parameters.
-XXX This is no good solution.  We should rather copy the args so
-that we can compare them later.  But we must not use malloc(3).  */
-extern int __libc_argc;
-extern char **__libc_argv;
-
-/* Bash 2.0 gives us an environment variable containing flags
-indicating ARGV elements that should not be considered arguments.  */
-
-# ifdef USE_NONOPTION_FLAGS
-/* Defined in getopt_init.c  */
-extern char *__getopt_nonoption_flags;
-
-static int nonoption_flags_max_len;
-static int nonoption_flags_len;
-# endif
-
-# ifdef USE_NONOPTION_FLAGS
-#  define SWAP_FLAGS(ch1, ch2) \
-if (nonoption_flags_len > 0)						      \
-{									      \
-	char __tmp = __getopt_nonoption_flags[ch1];			      \
-	__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2];	      \
-	__getopt_nonoption_flags[ch2] = __tmp;				      \
-}
-# else
-#  define SWAP_FLAGS(ch1, ch2)
-# endif
-#else	/* !_LIBC */
-# define SWAP_FLAGS(ch1, ch2)
-#endif	/* _LIBC */
-
-/* Exchange two adjacent subsequences of ARGV.
-One subsequence is elements [first_nonopt,last_nonopt)
-which contains all the non-options that have been skipped so far.
-The other is elements [last_nonopt,optind), which contains all
-the options processed since those non-options were skipped.
-
-`first_nonopt' and `last_nonopt' are relocated so that they describe
-the new indices of the non-options in ARGV after they are moved.  */
-
-#if defined __STDC__ && __STDC__
-static void exchange(char **);
-#endif
-
-static void
-exchange(argv)
-char **argv;
-{
-	int bottom = first_nonopt;
-	int middle = last_nonopt;
-	int top = optind;
-	char *tem;
-
-	/* Exchange the shorter segment with the far end of the longer segment.
-	That puts the shorter segment into the right place.
-	It leaves the longer segment in the right place overall,
-	but it consists of two parts that need to be swapped next.  */
-
-#if defined _LIBC && defined USE_NONOPTION_FLAGS
-	/* First make sure the handling of the `__getopt_nonoption_flags'
-	string can work normally.  Our top argument must be in the range
-	of the string.  */
-	if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
-	{
-		/* We must extend the array.  The user plays games with us and
-		presents new arguments.  */
-		char *new_str = malloc(top + 1);
-		if (new_str == NULL)
-			nonoption_flags_len = nonoption_flags_max_len = 0;
-		else
-		{
-			memset(__mempcpy(new_str, __getopt_nonoption_flags,
-				nonoption_flags_max_len),
-				'\0', top + 1 - nonoption_flags_max_len);
-			nonoption_flags_max_len = top + 1;
-			__getopt_nonoption_flags = new_str;
-		}
-	}
-#endif
-
-	while (top > middle && middle > bottom)
-	{
-		if (top - middle > middle - bottom)
-		{
-			/* Bottom segment is the short one.  */
-			int len = middle - bottom;
-			register int i;
-
-			/* Swap it with the top part of the top segment.  */
-			for (i = 0; i < len; i++)
-			{
-				tem = argv[bottom + i];
-				argv[bottom + i] = argv[top - (middle - bottom) + i];
-				argv[top - (middle - bottom) + i] = tem;
-				SWAP_FLAGS(bottom + i, top - (middle - bottom) + i);
-			}
-			/* Exclude the moved bottom segment from further swapping.  */
-			top -= len;
-		}
-		else
-		{
-			/* Top segment is the short one.  */
-			int len = top - middle;
-			register int i;
-
-			/* Swap it with the bottom part of the bottom segment.  */
-			for (i = 0; i < len; i++)
-			{
-				tem = argv[bottom + i];
-				argv[bottom + i] = argv[middle + i];
-				argv[middle + i] = tem;
-				SWAP_FLAGS(bottom + i, middle + i);
-			}
-			/* Exclude the moved top segment from further swapping.  */
-			bottom += len;
-		}
-	}
-
-	/* Update records for the slots the non-options now occupy.  */
-
-	first_nonopt += (optind - last_nonopt);
-	last_nonopt = optind;
-}
-
-/* Initialize the internal data when the first call is made.  */
-
-#if defined __STDC__ && __STDC__
-static const char *_getopt_initialize(int, char *const *, const char *);
-#endif
-static const char *
-_getopt_initialize(argc, argv, optstring)
-int argc;
-char *const *argv;
-const char *optstring;
-{
-	/* Start processing options with ARGV-element 1 (since ARGV-element 0
-	is the program name); the sequence of previously skipped
-	non-option ARGV-elements is empty.  */
-
-	first_nonopt = last_nonopt = optind;
-
-	nextchar = NULL;
-
-	posixly_correct = getenv("POSIXLY_CORRECT");
-
-	/* Determine how to handle the ordering of options and nonoptions.  */
-
-	if (optstring[0] == '-')
-	{
-		ordering = RETURN_IN_ORDER;
-		++optstring;
-	}
-	else if (optstring[0] == '+')
-	{
-		ordering = REQUIRE_ORDER;
-		++optstring;
-	}
-	else if (posixly_correct != NULL)
-		ordering = REQUIRE_ORDER;
-	else
-		ordering = PERMUTE;
-
-#if defined _LIBC && defined USE_NONOPTION_FLAGS
-	if (posixly_correct == NULL
-		&& argc == __libc_argc && argv == __libc_argv)
-	{
-		if (nonoption_flags_max_len == 0)
-		{
-			if (__getopt_nonoption_flags == NULL
-				|| __getopt_nonoption_flags[0] == '\0')
-				nonoption_flags_max_len = -1;
-			else
-			{
-				const char *orig_str = __getopt_nonoption_flags;
-				int len = nonoption_flags_max_len = strlen(orig_str);
-				if (nonoption_flags_max_len < argc)
-					nonoption_flags_max_len = argc;
-				__getopt_nonoption_flags =
-					(char *)malloc(nonoption_flags_max_len);
-				if (__getopt_nonoption_flags == NULL)
-					nonoption_flags_max_len = -1;
-				else
-					memset(__mempcpy(__getopt_nonoption_flags, orig_str, len),
-					'\0', nonoption_flags_max_len - len);
-			}
-		}
-		nonoption_flags_len = nonoption_flags_max_len;
-	}
-	else
-		nonoption_flags_len = 0;
-#endif
-
-	return optstring;
-}
-
-/* Scan elements of ARGV (whose length is ARGC) for option characters
-given in OPTSTRING.
-
-If an element of ARGV starts with '-', and is not exactly "-" or "--",
-then it is an option element.  The characters of this element
-(aside from the initial '-') are option characters.  If `getopt'
-is called repeatedly, it returns successively each of the option characters
-from each of the option elements.
-
-If `getopt' finds another option character, it returns that character,
-updating `optind' and `nextchar' so that the next call to `getopt' can
-resume the scan with the following option character or ARGV-element.
-
-If there are no more option characters, `getopt' returns -1.
-Then `optind' is the index in ARGV of the first ARGV-element
-that is not an option.  (The ARGV-elements have been permuted
-so that those that are not options now come last.)
-
-OPTSTRING is a string containing the legitimate option characters.
-If an option character is seen that is not listed in OPTSTRING,
-return '?' after printing an error message.  If you set `opterr' to
-zero, the error message is suppressed but we still return '?'.
-
-If a char in OPTSTRING is followed by a colon, that means it wants an arg,
-so the following text in the same ARGV-element, or the text of the following
-ARGV-element, is returned in `optarg'.  Two colons mean an option that
-wants an optional arg; if there is text in the current ARGV-element,
-it is returned in `optarg', otherwise `optarg' is set to zero.
-
-If OPTSTRING starts with `-' or `+', it requests different methods of
-handling the non-option ARGV-elements.
-See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
-
-Long-named options begin with `--' instead of `-'.
-Their names may be abbreviated as long as the abbreviation is unique
-or is an exact match for some defined option.  If they have an
-argument, it follows the option name in the same ARGV-element, separated
-from the option name by a `=', or else the in next ARGV-element.
-When `getopt' finds a long-named option, it returns 0 if that option's
-`flag' field is nonzero, the value of the option's `val' field
-if the `flag' field is zero.
-
-The elements of ARGV aren't really const, because we permute them.
-But we pretend they're const in the prototype to be compatible
-with other systems.
-
-LONGOPTS is a vector of `struct option' terminated by an
-element containing a name which is zero.
-
-LONGIND returns the index in LONGOPT of the long-named option found.
-It is only valid when a long-named option has been found by the most
-recent call.
-
-If LONG_ONLY is nonzero, '-' as well as '--' can introduce
-long-named options.  */
-
-int
-_getopt_internal(argc, argv, optstring, longopts, longind, long_only)
-int argc;
-char *const *argv;
-const char *optstring;
-const struct option *longopts;
-int *longind;
-int long_only;
-{
-	int print_errors = opterr;
-	if (optstring[0] == ':')
-		print_errors = 0;
-
-	if (argc < 1)
-		return -1;
-
-	optarg = NULL;
-
-	if (optind == 0 || !__getopt_initialized)
-	{
-		if (optind == 0)
-			optind = 1;	/* Don't scan ARGV[0], the program name.  */
-		optstring = _getopt_initialize(argc, argv, optstring);
-		__getopt_initialized = 1;
-	}
-
-	/* Test whether ARGV[optind] points to a non-option argument.
-	Either it does not have option syntax, or there is an environment flag
-	from the shell indicating it is not an option.  The later information
-	is only used when the used in the GNU libc.  */
-#if defined _LIBC && defined USE_NONOPTION_FLAGS
-# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0'	      \
-	|| (optind < nonoption_flags_len			      \
-	&& __getopt_nonoption_flags[optind] == '1'))
-#else
-# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
-#endif
-
-	if (nextchar == NULL || *nextchar == '\0')
-	{
-		/* Advance to the next ARGV-element.  */
-
-		/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
-		moved back by the user (who may also have changed the arguments).  */
-		if (last_nonopt > optind)
-			last_nonopt = optind;
-		if (first_nonopt > optind)
-			first_nonopt = optind;
-
-		if (ordering == PERMUTE)
-		{
-			/* If we have just processed some options following some non-options,
-			exchange them so that the options come first.  */
-
-			if (first_nonopt != last_nonopt && last_nonopt != optind)
-				exchange((char **)argv);
-			else if (last_nonopt != optind)
-				first_nonopt = optind;
-
-			/* Skip any additional non-options
-			and extend the range of non-options previously skipped.  */
-
-			while (optind < argc && NONOPTION_P)
-				optind++;
-			last_nonopt = optind;
-		}
-
-		/* The special ARGV-element `--' means premature end of options.
-		Skip it like a null option,
-		then exchange with previous non-options as if it were an option,
-		then skip everything else like a non-option.  */
-
-		if (optind != argc && !strcmp(argv[optind], "--"))
-		{
-			optind++;
-
-			if (first_nonopt != last_nonopt && last_nonopt != optind)
-				exchange((char **)argv);
-			else if (first_nonopt == last_nonopt)
-				first_nonopt = optind;
-			last_nonopt = argc;
-
-			optind = argc;
-		}
-
-		/* If we have done all the ARGV-elements, stop the scan
-		and back over any non-options that we skipped and permuted.  */
-
-		if (optind == argc)
-		{
-			/* Set the next-arg-index to point at the non-options
-			that we previously skipped, so the caller will digest them.  */
-			if (first_nonopt != last_nonopt)
-				optind = first_nonopt;
-			return -1;
-		}
-
-		/* If we have come to a non-option and did not permute it,
-		either stop the scan or describe it to the caller and pass it by.  */
-
-		if (NONOPTION_P)
-		{
-			if (ordering == REQUIRE_ORDER)
-				return -1;
-			optarg = argv[optind++];
-			return 1;
-		}
-
-		/* We have found another option-ARGV-element.
-		Skip the initial punctuation.  */
-
-		nextchar = (argv[optind] + 1
-			+ (longopts != NULL && argv[optind][1] == '-'));
-	}
-
-	/* Decode the current option-ARGV-element.  */
-
-	/* Check whether the ARGV-element is a long option.
-
-	If long_only and the ARGV-element has the form "-f", where f is
-	a valid short option, don't consider it an abbreviated form of
-	a long option that starts with f.  Otherwise there would be no
-	way to give the -f short option.
-
-	On the other hand, if there's a long option "fubar" and
-	the ARGV-element is "-fu", do consider that an abbreviation of
-	the long option, just like "--fu", and not "-f" with arg "u".
-
-	This distinction seems to be the most useful approach.  */
-
-	if (longopts != NULL
-		&& (argv[optind][1] == '-'
-		|| (long_only && (argv[optind][2] || !my_index(optstring, argv[optind][1])))))
-	{
-		char *nameend;
-		const struct option *p;
-		const struct option *pfound = NULL;
-		int exact = 0;
-		int ambig = 0;
-		int indfound = -1;
-		int option_index;
-
-		for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
-			/* Do nothing.  */;
-
-		/* Test all long options for either exact match
-		or abbreviated matches.  */
-		for (p = longopts, option_index = 0; p->name; p++, option_index++)
-		if (!strncmp(p->name, nextchar, nameend - nextchar))
-		{
-			if ((unsigned int)(nameend - nextchar)
-				== (unsigned int)strlen(p->name))
-			{
-				/* Exact match found.  */
-				pfound = p;
-				indfound = option_index;
-				exact = 1;
-				break;
-			}
-			else if (pfound == NULL)
-			{
-				/* First nonexact match found.  */
-				pfound = p;
-				indfound = option_index;
-			}
-			else if (long_only
-				|| pfound->has_arg != p->has_arg
-				|| pfound->flag != p->flag
-				|| pfound->val != p->val)
-				/* Second or later nonexact match found.  */
-				ambig = 1;
-		}
-
-		if (ambig && !exact)
-		{
-			if (print_errors)
-			{
-#if defined _LIBC && defined USE_IN_LIBIO
-				char *buf;
-
-				__asprintf(&buf, _("%s: option `%s' is ambiguous\n"),
-					argv[0], argv[optind]);
-
-				if (_IO_fwide(stderr, 0) > 0)
-					__fwprintf(stderr, L"%s", buf);
-				else
-					fputs(buf, stderr);
-
-				free(buf);
-#else
-				fprintf(stderr, _("%s: option `%s' is ambiguous\n"),
-					argv[0], argv[optind]);
-#endif
-			}
-			nextchar += strlen(nextchar);
-			optind++;
-			optopt = 0;
-			return '?';
-		}
-
-		if (pfound != NULL)
-		{
-			option_index = indfound;
-			optind++;
-			if (*nameend)
-			{
-				/* Don't test has_arg with >, because some C compilers don't
-				allow it to be used on enums.  */
-				if (pfound->has_arg)
-					optarg = nameend + 1;
-				else
-				{
-					if (print_errors)
-					{
-#if defined _LIBC && defined USE_IN_LIBIO
-						char *buf;
-#endif
-
-						if (argv[optind - 1][1] == '-')
-						{
-							/* --option */
-#if defined _LIBC && defined USE_IN_LIBIO
-							__asprintf(&buf, _("\
-											   %s: option `--%s' doesn't allow an argument\n"),
-											   argv[0], pfound->name);
-#else
-							fprintf(stderr, _("\
-											  %s: option `--%s' doesn't allow an argument\n"),
-											  argv[0], pfound->name);
-#endif
-						}
-						else
-						{
-							/* +option or -option */
-#if defined _LIBC && defined USE_IN_LIBIO
-							__asprintf(&buf, _("\
-											   %s: option `%c%s' doesn't allow an argument\n"),
-											   argv[0], argv[optind - 1][0],
-											   pfound->name);
-#else
-							fprintf(stderr, _("\
-											  %s: option `%c%s' doesn't allow an argument\n"),
-											  argv[0], argv[optind - 1][0], pfound->name);
-#endif
-						}
-
-#if defined _LIBC && defined USE_IN_LIBIO
-						if (_IO_fwide(stderr, 0) > 0)
-							__fwprintf(stderr, L"%s", buf);
-						else
-							fputs(buf, stderr);
-
-						free(buf);
-#endif
-					}
-
-					nextchar += strlen(nextchar);
-
-					optopt = pfound->val;
-					return '?';
-				}
-			}
-			else if (pfound->has_arg == 1)
-			{
-				if (optind < argc)
-					optarg = argv[optind++];
-				else
-				{
-					if (print_errors)
-					{
-#if defined _LIBC && defined USE_IN_LIBIO
-						char *buf;
-
-						__asprintf(&buf,
-							_("%s: option `%s' requires an argument\n"),
-							argv[0], argv[optind - 1]);
-
-						if (_IO_fwide(stderr, 0) > 0)
-							__fwprintf(stderr, L"%s", buf);
-						else
-							fputs(buf, stderr);
-
-						free(buf);
-#else
-						fprintf(stderr,
-							_("%s: option `%s' requires an argument\n"),
-							argv[0], argv[optind - 1]);
-#endif
-					}
-					nextchar += strlen(nextchar);
-					optopt = pfound->val;
-					return optstring[0] == ':' ? ':' : '?';
-				}
-			}
-			nextchar += strlen(nextchar);
-			if (longind != NULL)
-				*longind = option_index;
-			if (pfound->flag)
-			{
-				*(pfound->flag) = pfound->val;
-				return 0;
-			}
-			return pfound->val;
-		}
-
-		/* Can't find it as a long option.  If this is not getopt_long_only,
-		or the option starts with '--' or is not a valid short
-		option, then it's an error.
-		Otherwise interpret it as a short option.  */
-		if (!long_only || argv[optind][1] == '-'
-			|| my_index(optstring, *nextchar) == NULL)
-		{
-			if (print_errors)
-			{
-#if defined _LIBC && defined USE_IN_LIBIO
-				char *buf;
-#endif
-
-				if (argv[optind][1] == '-')
-				{
-					/* --option */
-#if defined _LIBC && defined USE_IN_LIBIO
-					__asprintf(&buf, _("%s: unrecognized option `--%s'\n"),
-						argv[0], nextchar);
-#else
-					fprintf(stderr, _("%s: unrecognized option `--%s'\n"),
-						argv[0], nextchar);
-#endif
-				}
-				else
-				{
-					/* +option or -option */
-#if defined _LIBC && defined USE_IN_LIBIO
-					__asprintf(&buf, _("%s: unrecognized option `%c%s'\n"),
-						argv[0], argv[optind][0], nextchar);
-#else
-					fprintf(stderr, _("%s: unrecognized option `%c%s'\n"),
-						argv[0], argv[optind][0], nextchar);
-#endif
-				}
-
-#if defined _LIBC && defined USE_IN_LIBIO
-				if (_IO_fwide(stderr, 0) > 0)
-					__fwprintf(stderr, L"%s", buf);
-				else
-					fputs(buf, stderr);
-
-				free(buf);
-#endif
-			}
-			nextchar = (char *) "";
-			optind++;
-			optopt = 0;
-			return '?';
-		}
-	}
-
-	/* Look at and handle the next short option-character.  */
-
-	{
-		char c = *nextchar++;
-		char *temp = my_index(optstring, c);
-
-		/* Increment `optind' when we start to process its last character.  */
-		if (*nextchar == '\0')
-			++optind;
-
-		if (temp == NULL || c == ':')
-		{
-			if (print_errors)
-			{
-#if defined _LIBC && defined USE_IN_LIBIO
-				char *buf;
-#endif
-
-				if (posixly_correct)
-				{
-					/* 1003.2 specifies the format of this message.  */
-#if defined _LIBC && defined USE_IN_LIBIO
-					__asprintf(&buf, _("%s: illegal option -- %c\n"),
-						argv[0], c);
-#else
-					fprintf(stderr, _("%s: illegal option -- %c\n"), argv[0], c);
-#endif
-				}
-				else
-				{
-#if defined _LIBC && defined USE_IN_LIBIO
-					__asprintf(&buf, _("%s: invalid option -- %c\n"),
-						argv[0], c);
-#else
-					fprintf(stderr, _("%s: invalid option -- %c\n"), argv[0], c);
-#endif
-				}
-
-#if defined _LIBC && defined USE_IN_LIBIO
-				if (_IO_fwide(stderr, 0) > 0)
-					__fwprintf(stderr, L"%s", buf);
-				else
-					fputs(buf, stderr);
-
-				free(buf);
-#endif
-			}
-			optopt = c;
-			return '?';
-		}
-		/* Convenience. Treat POSIX -W foo same as long option --foo */
-		if (temp[0] == 'W' && temp[1] == ';')
-		{
-			char *nameend;
-			const struct option *p;
-			const struct option *pfound = NULL;
-			int exact = 0;
-			int ambig = 0;
-			int indfound = 0;
-			int option_index;
-
-			/* This is an option that requires an argument.  */
-			if (*nextchar != '\0')
-			{
-				optarg = nextchar;
-				/* If we end this ARGV-element by taking the rest as an arg,
-				we must advance to the next element now.  */
-				optind++;
-			}
-			else if (optind == argc)
-			{
-				if (print_errors)
-				{
-					/* 1003.2 specifies the format of this message.  */
-#if defined _LIBC && defined USE_IN_LIBIO
-					char *buf;
-
-					__asprintf(&buf, _("%s: option requires an argument -- %c\n"),
-						argv[0], c);
-
-					if (_IO_fwide(stderr, 0) > 0)
-						__fwprintf(stderr, L"%s", buf);
-					else
-						fputs(buf, stderr);
-
-					free(buf);
-#else
-					fprintf(stderr, _("%s: option requires an argument -- %c\n"),
-						argv[0], c);
-#endif
-				}
-				optopt = c;
-				if (optstring[0] == ':')
-					c = ':';
-				else
-					c = '?';
-				return c;
-			}
-			else
-				/* We already incremented `optind' once;
-				increment it again when taking next ARGV-elt as argument.  */
-				optarg = argv[optind++];
-
-			/* optarg is now the argument, see if it's in the
-			table of longopts.  */
-
-			for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
-				/* Do nothing.  */;
-
-			/* Test all long options for either exact match
-			or abbreviated matches.  */
-			for (p = longopts, option_index = 0; p->name; p++, option_index++)
-			if (!strncmp(p->name, nextchar, nameend - nextchar))
-			{
-				if ((unsigned int)(nameend - nextchar) == strlen(p->name))
-				{
-					/* Exact match found.  */
-					pfound = p;
-					indfound = option_index;
-					exact = 1;
-					break;
-				}
-				else if (pfound == NULL)
-				{
-					/* First nonexact match found.  */
-					pfound = p;
-					indfound = option_index;
-				}
-				else
-					/* Second or later nonexact match found.  */
-					ambig = 1;
-			}
-			if (ambig && !exact)
-			{
-				if (print_errors)
-				{
-#if defined _LIBC && defined USE_IN_LIBIO
-					char *buf;
-
-					__asprintf(&buf, _("%s: option `-W %s' is ambiguous\n"),
-						argv[0], argv[optind]);
-
-					if (_IO_fwide(stderr, 0) > 0)
-						__fwprintf(stderr, L"%s", buf);
-					else
-						fputs(buf, stderr);
-
-					free(buf);
-#else
-					fprintf(stderr, _("%s: option `-W %s' is ambiguous\n"),
-						argv[0], argv[optind]);
-#endif
-				}
-				nextchar += strlen(nextchar);
-				optind++;
-				return '?';
-			}
-			if (pfound != NULL)
-			{
-				option_index = indfound;
-				if (*nameend)
-				{
-					/* Don't test has_arg with >, because some C compilers don't
-					allow it to be used on enums.  */
-					if (pfound->has_arg)
-						optarg = nameend + 1;
-					else
-					{
-						if (print_errors)
-						{
-#if defined _LIBC && defined USE_IN_LIBIO
-							char *buf;
-
-							__asprintf(&buf, _("\
-											   %s: option `-W %s' doesn't allow an argument\n"),
-											   argv[0], pfound->name);
-
-							if (_IO_fwide(stderr, 0) > 0)
-								__fwprintf(stderr, L"%s", buf);
-							else
-								fputs(buf, stderr);
-
-							free(buf);
-#else
-							fprintf(stderr, _("\
-											  %s: option `-W %s' doesn't allow an argument\n"),
-											  argv[0], pfound->name);
-#endif
-						}
-
-						nextchar += strlen(nextchar);
-						return '?';
-					}
-				}
-				else if (pfound->has_arg == 1)
-				{
-					if (optind < argc)
-						optarg = argv[optind++];
-					else
-					{
-						if (print_errors)
-						{
-#if defined _LIBC && defined USE_IN_LIBIO
-							char *buf;
-
-							__asprintf(&buf, _("\
-											   %s: option `%s' requires an argument\n"),
-											   argv[0], argv[optind - 1]);
-
-							if (_IO_fwide(stderr, 0) > 0)
-								__fwprintf(stderr, L"%s", buf);
-							else
-								fputs(buf, stderr);
-
-							free(buf);
-#else
-							fprintf(stderr,
-								_("%s: option `%s' requires an argument\n"),
-								argv[0], argv[optind - 1]);
-#endif
-						}
-						nextchar += strlen(nextchar);
-						return optstring[0] == ':' ? ':' : '?';
-					}
-				}
-				nextchar += strlen(nextchar);
-				if (longind != NULL)
-					*longind = option_index;
-				if (pfound->flag)
-				{
-					*(pfound->flag) = pfound->val;
-					return 0;
-				}
-				return pfound->val;
-			}
-			nextchar = NULL;
-			return 'W';	/* Let the application handle it.   */
-		}
-		if (temp[1] == ':')
-		{
-			if (temp[2] == ':')
-			{
-				/* This is an option that accepts an argument optionally.  */
-				if (*nextchar != '\0')
-				{
-					optarg = nextchar;
-					optind++;
-				}
-				else
-					optarg = NULL;
-				nextchar = NULL;
-			}
-			else
-			{
-				/* This is an option that requires an argument.  */
-				if (*nextchar != '\0')
-				{
-					optarg = nextchar;
-					/* If we end this ARGV-element by taking the rest as an arg,
-					we must advance to the next element now.  */
-					optind++;
-				}
-				else if (optind == argc)
-				{
-					if (print_errors)
-					{
-						/* 1003.2 specifies the format of this message.  */
-#if defined _LIBC && defined USE_IN_LIBIO
-						char *buf;
-
-						__asprintf(&buf,
-							_("%s: option requires an argument -- %c\n"),
-							argv[0], c);
-
-						if (_IO_fwide(stderr, 0) > 0)
-							__fwprintf(stderr, L"%s", buf);
-						else
-							fputs(buf, stderr);
-
-						free(buf);
-#else
-						fprintf(stderr,
-							_("%s: option requires an argument -- %c\n"),
-							argv[0], c);
-#endif
-					}
-					optopt = c;
-					if (optstring[0] == ':')
-						c = ':';
-					else
-						c = '?';
-				}
-				else
-					/* We already incremented `optind' once;
-					increment it again when taking next ARGV-elt as argument.  */
-					optarg = argv[optind++];
-				nextchar = NULL;
-			}
-		}
-		return c;
-	}
-}
-
-int
-getopt(argc, argv, optstring)
-int argc;
-char *const *argv;
-const char *optstring;
-{
-	return _getopt_internal(argc, argv, optstring,
-		(const struct option *) 0,
-		(int *)0,
-		0);
-}
-
-
-
-
-int
-getopt_long(int argc, char *const *argv, const char *options,
-const struct option *long_options, int *opt_index)
-{
-	return _getopt_internal(argc, argv, options, long_options, opt_index, 0, 0);
-}
-
-int
-getopt_long_only(int argc, char *const *argv, const char *options,
-const struct option *long_options, int *opt_index)
-{
-	return _getopt_internal(argc, argv, options, long_options, opt_index, 1, 0);
-}
-
-
-
-
-
-#endif	/* Not ELIDE_CODE.  */
-
-#ifdef TEST
-
-/* Compile with -DTEST to make an executable for use in testing
-the above definition of `getopt'.  */
-
-int
-main(argc, argv)
-int argc;
-char **argv;
-{
-	int c;
-	int digit_optind = 0;
-
-	while (1)
-	{
-		int this_option_optind = optind ? optind : 1;
-
-		c = getopt(argc, argv, "abc:d:0123456789");
-		if (c == -1)
-			break;
-
-		switch (c)
-		{
-			case '0':
-			case '1':
-			case '2':
-			case '3':
-			case '4':
-			case '5':
-			case '6':
-			case '7':
-			case '8':
-			case '9':
-				if (digit_optind != 0 && digit_optind != this_option_optind)
-					printf("digits occur in two different argv-elements.\n");
-				digit_optind = this_option_optind;
-				printf("option %c\n", c);
-				break;
-
-			case 'a':
-				printf("option a\n");
-				break;
-
-			case 'b':
-				printf("option b\n");
-				break;
-
-			case 'c':
-				printf("option c with value `%s'\n", optarg);
-				break;
-
-			case '?':
-				break;
-
-			default:
-				printf("?? getopt returned character code 0%o ??\n", c);
-		}
-	}
-
-	if (optind < argc)
-	{
-		printf("non-option ARGV-elements: ");
-		while (optind < argc)
-			printf("%s ", argv[optind++]);
-		printf("\n");
-	}
-
-	exit(0);
-}
-
-#endif /* TEST */
diff --git a/third-party/td/td/td/generate/tl-parser/wgetopt.h b/third-party/td/td/td/generate/tl-parser/wgetopt.h
deleted file mode 100644
index 6e2fa27180..0000000000
--- a/third-party/td/td/td/generate/tl-parser/wgetopt.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/* Declarations for getopt.
-   Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2009,2010
-   Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#ifndef _GETOPT_H
-
-#ifndef __need_getopt
-# define _GETOPT_H 1
-#endif
-
-/* If __GNU_LIBRARY__ is not already defined, either we are being used
-   standalone, or this is the first header included in the source file.
-   If we are being used with glibc, we need to include <features.h>, but
-   that does not exist if we are standalone.  So: if __GNU_LIBRARY__ is
-   not defined, include <ctype.h>, which will pull in <features.h> for us
-   if it's from glibc.  (Why ctype.h?  It's guaranteed to exist and it
-   doesn't flood the namespace with stuff the way some other headers do.)  */
-#if !defined __GNU_LIBRARY__
-# include <ctype.h>
-#endif
-
-#ifndef __THROW
-# ifndef __GNUC_PREREQ
-#  define __GNUC_PREREQ(maj, min) (0)
-# endif
-# if defined __cplusplus && __GNUC_PREREQ (2,8)
-#  define __THROW	throw ()
-# else
-#  define __THROW
-# endif
-#endif
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-/* For communication from `getopt' to the caller.
-   When `getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when `ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-extern char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to `getopt'.
-
-   On entry to `getopt', zero means this is the first call; initialize.
-
-   When `getopt' returns -1, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, `optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-extern int optind;
-
-/* Callers store zero here to inhibit the error message `getopt' prints
-   for unrecognized options.  */
-
-extern int opterr;
-
-/* Set to an option character which was unrecognized.  */
-
-extern int optopt;
-
-#ifndef __need_getopt
-/* Describe the long-named options requested by the application.
-   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
-   of `struct option' terminated by an element containing a name which is
-   zero.
-
-   The field `has_arg' is:
-   no_argument		(or 0) if the option does not take an argument,
-   required_argument	(or 1) if the option requires an argument,
-   optional_argument 	(or 2) if the option takes an optional argument.
-
-   If the field `flag' is not NULL, it points to a variable that is set
-   to the value given in the field `val' when the option is found, but
-   left unchanged if the option is not found.
-
-   To have a long-named option do something other than set an `int' to
-   a compiled-in constant, such as set a value from `optarg', set the
-   option's `flag' field to zero and its `val' field to a nonzero
-   value (the equivalent single-letter option character, if there is
-   one).  For long options that have a zero `flag' field, `getopt'
-   returns the contents of the `val' field.  */
-
-struct option
-{
-  const char *name;
-  /* has_arg can't be an enum because some compilers complain about
-     type mismatches in all the code that assumes it is an int.  */
-  int has_arg;
-  int *flag;
-  int val;
-};
-
-/* Names for the values of the `has_arg' field of `struct option'.  */
-
-# define no_argument		0
-# define required_argument	1
-# define optional_argument	2
-#endif	/* need getopt */
-
-
-/* Get definitions and prototypes for functions to process the
-   arguments in ARGV (ARGC of them, minus the program name) for
-   options given in OPTS.
-
-   Return the option character from OPTS just read.  Return -1 when
-   there are no more options.  For unrecognized options, or options
-   missing arguments, `optopt' is set to the option letter, and '?' is
-   returned.
-
-   The OPTS string is a list of characters which are recognized option
-   letters, optionally followed by colons, specifying that that letter
-   takes an argument, to be placed in `optarg'.
-
-   If a letter in OPTS is followed by two colons, its argument is
-   optional.  This behavior is specific to the GNU `getopt'.
-
-   The argument `--' causes premature termination of argument
-   scanning, explicitly telling `getopt' that there are no more
-   options.
-
-   If OPTS begins with `--', then non-option arguments are treated as
-   arguments to the option '\0'.  This behavior is specific to the GNU
-   `getopt'.  */
-
-#ifdef __GNU_LIBRARY__
-/* Many other libraries have conflicting prototypes for getopt, with
-   differences in the consts, in stdlib.h.  To avoid compilation
-   errors, only prototype getopt for the GNU C library.  */
-extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
-       __THROW;
-
-# if defined __need_getopt && defined __USE_POSIX2 \
-  && !defined __USE_POSIX_IMPLICITLY && !defined __USE_GNU
-/* The GNU getopt has more functionality than the standard version.  The
-   additional functionality can be disable at runtime.  This redirection
-   helps to also do this at runtime.  */
-#  ifdef __REDIRECT
-  extern int __REDIRECT_NTH (getopt, (int ___argc, char *const *___argv,
-				      const char *__shortopts),
-			     __posix_getopt);
-#  else
-extern int __posix_getopt (int ___argc, char *const *___argv,
-			   const char *__shortopts) __THROW;
-#   define getopt __posix_getopt
-#  endif
-# endif
-#else /* not __GNU_LIBRARY__ */
-extern int getopt ();
-#endif /* __GNU_LIBRARY__ */
-
-#ifndef __need_getopt
-extern int getopt_long (int ___argc, char *const *___argv,
-			const char *__shortopts,
-		        const struct option *__longopts, int *__longind)
-       __THROW;
-extern int getopt_long_only (int ___argc, char *const *___argv,
-			     const char *__shortopts,
-		             const struct option *__longopts, int *__longind)
-       __THROW;
-
-#endif
-
-#ifdef	__cplusplus
-}
-#endif
-
-/* Make sure we later can get all the definitions and declarations.  */
-#undef __need_getopt
-
-#endif /* getopt.h */
diff --git a/third-party/td/td/td/generate/tl_json_converter.cpp b/third-party/td/td/td/generate/tl_json_converter.cpp
deleted file mode 100644
index 7146b86b37..0000000000
--- a/third-party/td/td/td/generate/tl_json_converter.cpp
+++ /dev/null
@@ -1,297 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_json_converter.h"
-
-#include "td/tl/tl_simple.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-using Mode = tl::TL_writer::Mode;
-
-static bool need_bytes(const tl::simple::Type *type) {
-  return type->type == tl::simple::Type::Bytes ||
-         (type->type == tl::simple::Type::Vector && need_bytes(type->vector_value_type));
-}
-
-template <class T>
-void gen_to_json_constructor(StringBuilder &sb, const T *constructor, bool is_header) {
-  sb << "void to_json(JsonValueScope &jv, "
-     << "const td_api::" << tl::simple::gen_cpp_name(constructor->name) << " &object)";
-  if (is_header) {
-    sb << ";\n\n";
-    return;
-  }
-  sb << " {\n";
-  sb << "  auto jo = jv.enter_object();\n";
-  sb << "  jo(\"@type\", \"" << tl::simple::gen_cpp_name(constructor->name) << "\");\n";
-  for (auto &arg : constructor->args) {
-    auto field_name = tl::simple::gen_cpp_field_name(arg.name);
-    bool is_custom = arg.type->type == tl::simple::Type::Custom;
-
-    auto object = PSTRING() << "object." << field_name;
-    if (is_custom) {
-      sb << "  if (" << object << ") {\n  ";
-    }
-    if (arg.type->type == tl::simple::Type::Bytes) {
-      object = PSTRING() << "base64_encode(" << object << ")";
-    } else if (need_bytes(arg.type)) {
-      object = "UNSUPPORTED STORED VECTOR OF BYTES";
-    } else if (arg.type->type == tl::simple::Type::Bool) {
-      object = PSTRING() << "JsonBool{" << object << "}";
-    } else if (arg.type->type == tl::simple::Type::Int64) {
-      object = PSTRING() << "JsonInt64{" << object << "}";
-    } else if (arg.type->type == tl::simple::Type::Vector &&
-               arg.type->vector_value_type->type == tl::simple::Type::Int64) {
-      object = PSTRING() << "JsonVectorInt64{" << object << "}";
-    }
-    if (is_custom) {
-      sb << "  jo(\"" << arg.name << "\", ToJson(*" << object << "));\n";
-    } else if (arg.type->type == tl::simple::Type::Int64 || arg.type->type == tl::simple::Type::Vector) {
-      sb << "  jo(\"" << arg.name << "\", ToJson(" << object << "));\n";
-    } else {
-      sb << "  jo(\"" << arg.name << "\", " << object << ");\n";
-    }
-    if (is_custom) {
-      sb << "  }\n";
-    }
-  }
-  sb << "}\n\n";
-}
-
-void gen_to_json(StringBuilder &sb, const tl::simple::Schema &schema, bool is_header, Mode mode) {
-  for (auto *custom_type : schema.custom_types) {
-    if (!((custom_type->is_query_ && mode != Mode::Server) || (custom_type->is_result_ && mode != Mode::Client))) {
-      continue;
-    }
-    if (custom_type->constructors.size() > 1) {
-      auto type_name = tl::simple::gen_cpp_name(custom_type->name);
-      sb << "void to_json(JsonValueScope &jv, const td_api::" << type_name << " &object)";
-      if (is_header) {
-        sb << ";\n\n";
-      } else {
-        sb << " {\n"
-           << "  td_api::downcast_call(const_cast<td_api::" << type_name
-           << " &>(object), [&jv](const auto &object) { "
-              "to_json(jv, object); });\n"
-           << "}\n\n";
-      }
-    }
-    for (auto *constructor : custom_type->constructors) {
-      gen_to_json_constructor(sb, constructor, is_header);
-    }
-  }
-  if (mode == Mode::Server) {
-    return;
-  }
-  for (auto *function : schema.functions) {
-    gen_to_json_constructor(sb, function, is_header);
-  }
-}
-
-template <class T>
-void gen_from_json_constructor(StringBuilder &sb, const T *constructor, bool is_header) {
-  sb << "Status from_json(td_api::" << tl::simple::gen_cpp_name(constructor->name) << " &to, JsonObject &from)";
-  if (is_header) {
-    sb << ";\n\n";
-  } else {
-    sb << " {\n";
-    for (auto &arg : constructor->args) {
-      sb << "  TRY_STATUS(from_json" << (need_bytes(arg.type) ? "_bytes" : "") << "(to."
-         << tl::simple::gen_cpp_field_name(arg.name) << ", from.extract_field(\"" << tl::simple::gen_cpp_name(arg.name)
-         << "\")));\n";
-    }
-    sb << "  return Status::OK();\n";
-    sb << "}\n\n";
-  }
-}
-
-void gen_from_json(StringBuilder &sb, const tl::simple::Schema &schema, bool is_header, Mode mode) {
-  for (auto *custom_type : schema.custom_types) {
-    if (!((custom_type->is_query_ && mode != Mode::Client) || (custom_type->is_result_ && mode != Mode::Server))) {
-      continue;
-    }
-    for (auto *constructor : custom_type->constructors) {
-      gen_from_json_constructor(sb, constructor, is_header);
-    }
-  }
-  if (mode == Mode::Client) {
-    return;
-  }
-  for (auto *function : schema.functions) {
-    gen_from_json_constructor(sb, function, is_header);
-  }
-}
-
-using Vec = std::vector<std::pair<int32, std::string>>;
-void gen_tl_constructor_from_string(StringBuilder &sb, Slice name, const Vec &vec, bool is_header) {
-  sb << "Result<int32> tl_constructor_from_string(td_api::" << name << " *object, const std::string &str)";
-  if (is_header) {
-    sb << ";\n\n";
-    return;
-  }
-  sb << " {\n";
-  sb << "  static const FlatHashMap<Slice, int32, SliceHash> m = {\n";
-
-  bool is_first = true;
-  for (auto &p : vec) {
-    if (is_first) {
-      is_first = false;
-    } else {
-      sb << ",\n";
-    }
-    sb << "    {\"" << p.second << "\", " << p.first << "}";
-  }
-  sb << "\n  };\n";
-  sb << "  auto it = m.find(str);\n";
-  sb << "  if (it == m.end()) {\n"
-     << "    return Status::Error(PSLICE() << \"Unknown class \\\"\" << str << \"\\\"\");\n"
-     << "  }\n"
-     << "  return it->second;\n";
-  sb << "}\n\n";
-}
-
-void gen_tl_constructor_from_string(StringBuilder &sb, const tl::simple::Schema &schema, bool is_header, Mode mode) {
-  Vec vec_for_nullary;
-  for (auto *custom_type : schema.custom_types) {
-    if (!((custom_type->is_query_ && mode != Mode::Client) || (custom_type->is_result_ && mode != Mode::Server))) {
-      continue;
-    }
-    Vec vec;
-    for (auto *constructor : custom_type->constructors) {
-      vec.emplace_back(constructor->id, constructor->name);
-      vec_for_nullary.push_back(vec.back());
-    }
-
-    if (vec.size() > 1) {
-      gen_tl_constructor_from_string(sb, tl::simple::gen_cpp_name(custom_type->name), vec, is_header);
-    }
-  }
-  gen_tl_constructor_from_string(sb, "Object", vec_for_nullary, is_header);
-
-  if (mode == Mode::Client) {
-    return;
-  }
-  Vec vec_for_function;
-  for (auto *function : schema.functions) {
-    vec_for_function.emplace_back(function->id, function->name);
-  }
-  gen_tl_constructor_from_string(sb, "Function", vec_for_function, is_header);
-}
-
-void gen_json_converter_file(const tl::simple::Schema &schema, const std::string &file_name_base, bool is_header,
-                             Mode mode) {
-  auto file_name = is_header ? file_name_base + ".h" : file_name_base + ".cpp";
-  auto old_file_content = [&] {
-    auto r_content = read_file(file_name);
-    if (r_content.is_error()) {
-      return BufferSlice();
-    }
-    return r_content.move_as_ok();
-  }();
-
-  std::string buf(2000000, ' ');
-  StringBuilder sb(buf);
-
-  if (is_header) {
-    sb << "#pragma once\n\n";
-
-    sb << "#include \"td/telegram/td_api.h\"\n\n";
-
-    sb << "#include \"td/utils/JsonBuilder.h\"\n";
-    sb << "#include \"td/utils/Status.h\"\n\n";
-  } else {
-    sb << "#include \"" << file_name_base << ".h\"\n\n";
-
-    sb << "#include \"td/telegram/td_api.h\"\n";
-    sb << "#include \"td/telegram/td_api.hpp\"\n\n";
-
-    sb << "#include \"td/tl/tl_json.h\"\n\n";
-
-    sb << "#include \"td/utils/base64.h\"\n";
-    sb << "#include \"td/utils/common.h\"\n";
-    sb << "#include \"td/utils/FlatHashMap.h\"\n";
-    sb << "#include \"td/utils/Slice.h\"\n\n";
-
-    sb << "#include <functional>\n\n";
-  }
-  sb << "namespace td {\n";
-  sb << "namespace td_api {\n";
-  if (is_header) {
-    sb << "\nvoid to_json(JsonValueScope &jv, const tl_object_ptr<Object> &value);\n";
-    sb << "\nStatus from_json(tl_object_ptr<Function> &to, td::JsonValue from);\n";
-    sb << "\nvoid to_json(JsonValueScope &jv, const Object &object);\n";
-    sb << "\nvoid to_json(JsonValueScope &jv, const Function &object);\n\n";
-  } else {
-    sb << R"ABCD(
-void to_json(JsonValueScope &jv, const tl_object_ptr<Object> &value) {
-  td::to_json(jv, std::move(value));
-}
-
-Status from_json(tl_object_ptr<Function> &to, td::JsonValue from) {
-  return td::from_json(to, std::move(from));
-}
-
-template <class T>
-auto lazy_to_json(JsonValueScope &jv, const T &t) -> decltype(td_api::to_json(jv, t)) {
-  return td_api::to_json(jv, t);
-}
-
-template <class T>
-void lazy_to_json(std::reference_wrapper<JsonValueScope>, const T &t) {
-  UNREACHABLE();
-}
-
-void to_json(JsonValueScope &jv, const Object &object) {
-  downcast_call(const_cast<Object &>(object), [&jv](const auto &object) { lazy_to_json(jv, object); });
-}
-
-void to_json(JsonValueScope &jv, const Function &object) {
-  downcast_call(const_cast<Function &>(object), [&jv](const auto &object) { lazy_to_json(jv, object); });
-}
-
-)ABCD";
-  }
-  gen_tl_constructor_from_string(sb, schema, is_header, mode);
-  gen_from_json(sb, schema, is_header, mode);
-  gen_to_json(sb, schema, is_header, mode);
-  sb << "}  // namespace td_api\n";
-  sb << "}  // namespace td\n";
-
-  CHECK(!sb.is_error());
-  buf.resize(sb.as_cslice().size());
-#if TD_WINDOWS
-  string new_file_content;
-  for (auto c : buf) {
-    if (c == '\n') {
-      new_file_content += '\r';
-    }
-    new_file_content += c;
-  }
-#else
-  auto new_file_content = std::move(buf);
-#endif
-  if (new_file_content != old_file_content.as_slice()) {
-    write_file(file_name, new_file_content).ensure();
-  }
-}
-
-void gen_json_converter(const tl::tl_config &config, const std::string &file_name, Mode mode) {
-  tl::simple::Schema schema(config);
-  gen_json_converter_file(schema, file_name, true, mode);
-  gen_json_converter_file(schema, file_name, false, mode);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_json_converter.h b/third-party/td/td/td/generate/tl_json_converter.h
deleted file mode 100644
index 3f9ec7df9d..0000000000
--- a/third-party/td/td/td/generate/tl_json_converter.h
+++ /dev/null
@@ -1,18 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_writer.h"
-
-#include <string>
-
-namespace td {
-
-void gen_json_converter(const tl::tl_config &config, const std::string &file_name, tl::TL_writer::Mode mode);
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_c.h b/third-party/td/td/td/generate/tl_writer_c.h
deleted file mode 100644
index 4c288e6103..0000000000
--- a/third-party/td/td/td/generate/tl_writer_c.h
+++ /dev/null
@@ -1,1378 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_writer.h"
-
-#include <cassert>
-#include <cstdint>
-#include <sstream>
-#include <string>
-#include <vector>
-
-namespace td {
-
-class TlWriterCCommon final : public tl::TL_writer {
-  int is_header_;
-
- public:
-  TlWriterCCommon(const std::string &name, int is_header) : TL_writer(name), is_header_(is_header) {
-  }
-
-  int get_max_arity() const final {
-    return 0;
-  }
-
-  bool is_built_in_simple_type(const std::string &name) const final {
-    return name == "Bool" || name == "Int32" || name == "Int53" || name == "Int64" || name == "Double" ||
-           name == "String" || name == "Bytes";
-  }
-  bool is_built_in_complex_type(const std::string &name) const final {
-    return name == "Vector";
-  }
-  bool is_type_bare(const tl::tl_type *t) const final {
-    return t->simple_constructors <= 1 || (is_built_in_simple_type(t->name) && t->name != "Bool") ||
-           is_built_in_complex_type(t->name);
-  }
-
-  std::vector<std::string> get_parsers() const final {
-    return {};
-  }
-  int get_parser_type(const tl::tl_combinator *t, const std::string &name) const final {
-    return 0;
-  }
-  std::vector<std::string> get_storers() const final {
-    return {};
-  }
-  std::vector<std::string> get_additional_functions() const final {
-    return {"TdConvertToInternal", "TdConvertFromInternal", "TdSerialize",    "TdToString",
-            "TdDestroyObject",     "TdStackStorer",         "TdStackFetcher", "enum"};
-  }
-  int get_storer_type(const tl::tl_combinator *t, const std::string &name) const final {
-    return name == "to_string" || name == "to_cpp_string";
-  }
-
-  std::string gen_base_tl_class_name() const final {
-    return "Object";
-  }
-  std::string gen_base_type_class_name(int arity) const final {
-    assert(arity == 0);
-    return "Object";
-  }
-  std::string gen_base_function_class_name() const final {
-    return "Function";
-  }
-
-  static std::string to_camelCase(const std::string &name) {
-    return to_cCamelCase(name, false);
-  }
-  static std::string to_CamelCase(const std::string &name) {
-    return to_cCamelCase(name, true);
-  }
-  static std::string to_cCamelCase(const std::string &name, bool flag) {
-    bool next_to_upper = flag;
-    std::string result;
-    for (std::size_t i = 0; i < name.size(); i++) {
-      if (!is_alnum(name[i])) {
-        next_to_upper = true;
-        continue;
-      }
-      if (next_to_upper) {
-        result += to_upper(name[i]);
-        next_to_upper = false;
-      } else {
-        result += name[i];
-      }
-    }
-    return result;
-  }
-
-  std::string gen_native_field_name(std::string name) const {
-    for (std::size_t i = 0; i < name.size(); i++) {
-      if (!is_alnum(name[i])) {
-        name[i] = '_';
-      }
-    }
-    assert(name.size() > 0);
-    assert(name[name.size() - 1] != '_');
-    return name + "_";
-  }
-
-  std::string gen_native_class_name(std::string name) const {
-    if (name == "Object") {
-      assert(false);
-    }
-    if (name == "#") {
-      return "int";
-    }
-    for (std::size_t i = 0; i < name.size(); i++) {
-      if (!is_alnum(name[i])) {
-        name[i] = '_';
-      }
-    }
-    return name;
-  }
-
-  std::string gen_class_name(std::string name) const final {
-    if (name == "Object" || name == "#") {
-      assert(false);
-    }
-    return to_CamelCase(name);
-  }
-  std::string gen_field_name(std::string name) const final {
-    return gen_native_field_name(name);
-  }
-
-  std::string gen_native_type_name(const tl::tl_tree_type *tree_type, bool storage) const {
-    const tl::tl_type *t = tree_type->type;
-    const std::string &name = t->name;
-
-    if (name == "#") {
-      assert(false);
-    }
-    if (name == "Bool") {
-      return "bool";
-    }
-    if (name == "Int32") {
-      return "std::int32_t";
-    }
-    if (name == "Int53" || name == "Int64") {
-      return "std::int64_t";
-    }
-    if (name == "Double") {
-      return "double";
-    }
-    if (name == "String") {
-      return "std::string";
-    }
-    if (name == "Bytes") {
-      return "std::string";
-    }
-
-    if (name == "Vector") {
-      assert(t->arity == 1);
-      assert(tree_type->children.size() == 1);
-      assert(tree_type->children[0]->get_type() == tl::NODE_TYPE_TYPE);
-      const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-
-      return "std::vector<" + gen_native_type_name(child, storage) + ">";
-    }
-
-    assert(!is_built_in_simple_type(name) && !is_built_in_complex_type(name));
-
-    for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-      assert(tree_type->children[i]->get_type() == tl::NODE_TYPE_NAT_CONST);
-    }
-
-    std::string native_class_name = gen_native_class_name(t->name);
-    if (t->constructors_num == 1) {
-      native_class_name = gen_native_class_name(t->constructors[0]->name);
-    }
-    return storage ? "td::td_api::object_ptr<td::td_api::" + native_class_name + ">"
-                   : "td::td_api::" + native_class_name + "";
-  }
-
-  std::string gen_type_name(const tl::tl_tree_type *tree_type, bool force) const {
-    const tl::tl_type *t = tree_type->type;
-    const std::string &name = t->name;
-
-    if (name == "#") {
-      assert(false);
-    }
-    if (name == "Bool") {
-      return force ? "Int" : "int ";
-    }
-    if (name == "Int32") {
-      return force ? "Int" : "int ";
-    }
-    if (name == "Int53" || name == "Int64") {
-      return force ? "Long" : "long long ";
-    }
-    if (name == "Double") {
-      return force ? "Double" : "double ";
-    }
-    if (name == "String") {
-      return force ? "String" : "char *";
-    }
-    if (name == "Bytes") {
-      return force ? "Bytes" : "struct TdBytes ";
-    }
-
-    if (name == "Vector") {
-      assert(t->arity == 1);
-      assert(tree_type->children.size() == 1);
-      assert(tree_type->children[0]->get_type() == tl::NODE_TYPE_TYPE);
-      const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-
-      return !force ? ("struct TdVector" + gen_type_name(child, true) + " *") : ("Vector" + gen_type_name(child, true));
-    }
-
-    assert(!is_built_in_simple_type(name) && !is_built_in_complex_type(name));
-
-    for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-      assert(tree_type->children[i]->get_type() == tl::NODE_TYPE_NAT_CONST);
-    }
-
-    return !force ? ("struct Td" + gen_main_class_name(t) + " *") : gen_main_class_name(t);
-  }
-  std::string gen_type_name(const tl::tl_tree_type *tree_type) const final {
-    return gen_type_name(tree_type, false);
-  }
-  std::string gen_output_begin(const std::string &additional_imports) const final {
-    if (is_header_ == 1) {
-      return "#pragma once\n\n" + additional_imports +
-             "#ifdef __cplusplus\n"
-             "extern \"C\" {\n"
-             "#endif\n";
-    }
-    if (is_header_ == -1) {
-      return "#pragma once\n\n" + gen_import_declaration("td/telegram/td_tdc_api.h", false) +
-             gen_import_declaration("td/telegram/td_api.h", false) + "\n" + additional_imports;
-    }
-    return gen_import_declaration("td/telegram/td_tdc_api_inner.h", false) + "\n" +
-           gen_import_declaration("td/utils/format.h", false) + gen_import_declaration("td/utils/logging.h", false) +
-           gen_import_declaration("td/utils/misc.h", false) + gen_import_declaration("td/utils/Slice.h", false) + "\n" +
-           additional_imports;
-  }
-
-  std::string gen_output_begin_once() const final {
-    if (is_header_ == 1) {
-      return "struct TdBytes {\n"
-             "  unsigned char *data;\n"
-             "  int len;\n"
-             "};\n"
-             "#define TDC_VECTOR(tdc_type_name,tdc_type) \\\n"
-             "   struct TdVector ## tdc_type_name { \\\n"
-             "     int len;\\\n"
-             "     tdc_type *data;\\\n"
-             "   };\\\n"
-             "\n"
-             "TDC_VECTOR(Int,int)\n"
-             "TDC_VECTOR(Long,long long)\n"
-             "TDC_VECTOR(String,char *)\n"
-             "TDC_VECTOR(Bytes,struct TdBytes)\n"
-             "struct TdStackStorerMethods {\n"
-             "  void (*pack_string)(const char *s);\n"
-             "  void (*pack_bytes)(const unsigned char *s, int len);\n"
-             "  void (*pack_long)(long long x);\n"
-             "  void (*pack_double)(double x);\n"
-             "  void (*pack_bool)(int x);\n"
-             "  void (*new_table)(void);\n"
-             "  void (*new_array)(void);\n"
-             "  void (*new_field)(const char *name);\n"
-             "  void (*new_arr_field)(int idx);\n"
-             "};\n"
-             "struct TdStackFetcherMethods {\n"
-             "  char *(*get_string)(void);\n"
-             "  unsigned char *(*get_bytes)(int *len);\n"
-             "  long long (*get_long)(void);\n"
-             "  double (*get_double)(void);\n"
-             "  void (*pop)(void);\n"
-             "  void (*get_field)(const char *name);\n"
-             "  void (*get_arr_field)(int idx);\n"
-             "  int (*get_arr_size)(void);\n"
-             "  int (*is_nil)(void);\n"
-             "};\n";
-    }
-    return std::string();
-  }
-
-  std::string gen_output_end() const final {
-    if (is_header_ == 1) {
-      return "#ifdef __cplusplus\n"
-             "}\n"
-             "#endif\n";
-    } else if (is_header_ == -1) {
-      return "";
-    }
-    return "";
-  }
-
-  std::string gen_import_declaration(const std::string &name, bool is_system) const final {
-    if (is_system) {
-      return "#include <" + name + ">\n";
-    } else {
-      return "#include \"" + name + "\"\n";
-    }
-  }
-
-  std::string gen_package_suffix() const final {
-    return ".h";
-  }
-
-  std::string gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const final {
-    if (is_header_ != 1 || class_name == "") {
-      return "";
-    }
-    return "struct Td" + class_name +
-           ";\n"
-           "struct TdVector" +
-           class_name +
-           ";\n"
-           "struct TdVectorVector" +
-           class_name + ";\n";
-  }
-
-  std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                              const tl::tl_tree *result) const final {
-    if (is_header_ != 1 || class_name == "") {
-      return "";
-    }
-
-    std::string tail = "";
-    if (class_name == "Function" || class_name == "Object") {
-      tail = "};\n";
-    }
-    return "TDC_VECTOR(" + class_name + ", struct Td" + class_name +
-           " *);\n"
-           "TDC_VECTOR(Vector" +
-           class_name + ", struct TdVector" + class_name +
-           " *);\n"
-           "struct Td" +
-           class_name + " {\n" + "  int ID;\n  int refcnt;\n" + tail;
-  }
-  std::string gen_class_end() const final {
-    return "";
-  }
-
-  std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                   const std::string &field_name) const final {
-    if (is_header_ != 1 || class_name == "") {
-      return "";
-    }
-    return "  " + type_name + field_name + ";\n";
-  }
-
-  std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
-                                       std::vector<tl::var_description> &vars, int storer_type) const final {
-    return "";
-  }
-  std::string gen_store_function_end(const std::vector<tl::var_description> &vars, int storer_type) const final {
-    return "";
-  }
-
-  std::string gen_constructor_begin(int field_count, const std::string &class_name, bool is_default) const final {
-    if (!is_default || is_header_ == -1 || class_name == "") {
-      return "";
-    }
-    std::stringstream ss;
-    if (is_header_ == 1) {
-      ss << "};\n";
-    }
-    ss << "struct Td" + gen_class_name(class_name) + " *TdCreateObject" + gen_class_name(class_name) + " (" +
-              (field_count ? "" : "void");
-    return ss.str();
-  }
-  std::string gen_constructor_parameter(int field_num, const std::string &class_name, const tl::arg &a,
-                                        bool is_default) const final {
-    if (!is_default || is_header_ == -1) {
-      return "";
-    }
-    std::stringstream ss;
-    auto field_type = gen_field_type(a);
-    ss << (field_num == 0 ? "" : ", ");
-    ss << field_type << gen_field_name(a.name);
-    return ss.str();
-  }
-  std::string gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
-                                         bool is_default) const final {
-    return "";
-  }
-  std::string gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const final {
-    if (!is_default || is_header_ == -1) {
-      return "";
-    }
-    if (is_header_ == 1) {
-      return ");\n";
-    }
-    std::stringstream ss;
-    ss << ") {\n";
-    auto type_name = "struct Td" + gen_class_name(t->name);
-    ss << "  auto var = new " << type_name << " ();\n";
-    ss << "  var->ID = CODE_" << gen_class_name(t->name) << ";\n";
-    ss << "  var->refcnt = 1;\n";
-    for (auto &it : t->args) {
-      const tl::tl_tree_type *T = static_cast<const tl::tl_tree_type *>(it.type);
-      auto field_name = gen_field_name(it.name);
-      if (T->type->name == "String") {
-        ss << "  var->" << field_name << " = (" << field_name << ") ? td::str_dup (td::Slice (" << field_name
-           << ")) : nullptr;\n";
-      } else {
-        ss << "  var->" << field_name << " = " << field_name << ";\n";
-      }
-    }
-    ss << "  return var;\n}\n";
-    return ss.str();
-  }
-  std::string gen_additional_function(const std::string &function_name, const tl::tl_combinator *t,
-                                      bool is_function) const final {
-    std::stringstream ss;
-    if (function_name == "enum") {
-      return ss.str();
-    }
-    if (function_name == "TdDestroyObject") {
-      auto class_name = gen_class_name(t->name);
-      if (is_header_ == 1) {
-        ss << "void TdDestroyObject" + class_name + " (struct Td" + class_name + " *var);\n";
-        return ss.str();
-      }
-      if (is_header_ == -1) {
-        ss << "void TdDestroyObject (struct Td" + class_name + " *var);\n";
-        return ss.str();
-      }
-      ss << "void TdDestroyObject" + class_name + " (struct Td" + class_name + " *var) {\n";
-      ss << "  TdDestroyObject (var);\n";
-      ss << "}\n";
-      ss << "void TdDestroyObject (struct Td" + class_name + " *var)";
-
-      file_store_methods_destroy M(this);
-      gen_object_store(ss, t, M);
-      return ss.str();
-    }
-    if (function_name == "TdSerialize" && is_header_ != -1) {
-      auto class_name = gen_class_name(t->name);
-      ss << "char *TdSerialize" + class_name + " (struct Td" + class_name + " *var)";
-      if (is_header_ == 1) {
-        ss << ";\n";
-        return ss.str();
-      }
-      ss << " {\n";
-      ss << "  return td::str_dup (TdToString (var));\n";
-      ss << "}\n";
-      return ss.str();
-    }
-    if (function_name == "TdToString" && is_header_ != 1) {
-      auto class_name = gen_class_name(t->name);
-      ss << "std::string TdToString (struct Td" + class_name + " *var)";
-      if (is_header_ == -1) {
-        ss << ";\n";
-        return ss.str();
-      }
-      ss << " {\n";
-      ss << "  return to_string (TdConvertToInternal (var));\n";
-      ss << "}\n";
-      return ss.str();
-    }
-    if (function_name == "TdConvertToInternal" && is_header_ != 1) {
-      auto class_name = gen_class_name(t->name);
-      auto native_class_name = gen_native_class_name(t->name);
-      ss << "td::td_api::object_ptr<td::td_api::" << native_class_name
-         << "> TdConvertToInternal (struct Td" + class_name + " *var)";
-      if (is_header_ == -1) {
-        ss << ";\n";
-        return ss.str();
-      }
-      file_store_methods_to_td M(this);
-      gen_object_store(ss, t, M);
-      return ss.str();
-    }
-    if (function_name == "TdConvertFromInternal" && is_header_ != 1) {
-      auto class_name = gen_class_name(t->name);
-      auto native_class_name = gen_native_class_name(t->name);
-      ss << "struct Td" << class_name << " *TdConvertFromInternal (const td::td_api::" << native_class_name
-         << " &from)";
-      if (is_header_ == -1) {
-        ss << ";\n";
-        return ss.str();
-      }
-      file_fetch_methods_from_td M(this);
-      gen_object_fetch(ss, t, M);
-      return ss.str();
-    }
-    if (function_name == "TdStackStorer") {
-      auto class_name = gen_class_name(t->name);
-      if (is_header_ == 1) {
-        ss << "void TdStackStorer" + class_name + " (struct Td" + class_name +
-                  " *var, struct TdStackStorerMethods *M);\n";
-        return ss.str();
-      }
-      if (is_header_ == -1) {
-        ss << "void TdStackStorer (struct Td" + class_name + " *var, struct TdStackStorerMethods *M);\n";
-        return ss.str();
-      }
-      ss << "void TdStackStorer" + class_name + " (struct Td" + class_name +
-                " *var, struct TdStackStorerMethods *M) {\n";
-      ss << "  TdStackStorer (var, M);\n";
-      ss << "}\n";
-      ss << "void TdStackStorer (struct Td" + class_name + " *var, struct TdStackStorerMethods *M)";
-
-      file_store_methods_stack M(this);
-      gen_object_store(ss, t, M);
-      return ss.str();
-    }
-    if (function_name == "TdStackFetcher" && is_header_ != -1) {
-      auto class_name = gen_class_name(t->name);
-      ss << "struct Td" << class_name << " *TdStackFetcher" + class_name + " (struct TdStackFetcherMethods *M)";
-      if (is_header_ == 1) {
-        ss << ";\n";
-        return ss.str();
-      }
-
-      file_fetch_methods_stack M(this);
-      gen_object_fetch(ss, t, M);
-      return ss.str();
-    }
-    return ss.str();
-  }
-
-  struct file_store_methods {
-    file_store_methods() = default;
-    file_store_methods(const file_store_methods &) = delete;
-    file_store_methods &operator=(const file_store_methods &) = delete;
-    virtual ~file_store_methods() = default;
-    virtual void store_simple_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                   std::string type_name) const {
-      assert(false);
-    }
-    virtual void store_common_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                   std::string type_name) const {
-      assert(false);
-    }
-    virtual void store_array_start(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                   const tl::tl_tree_type *tree_type) const {
-      assert(false);
-    }
-    virtual void store_array_el(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                std::string idx) const {
-      assert(false);
-    }
-    virtual void store_array_finish(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                    const tl::tl_tree_type *tree_type) const {
-      assert(false);
-    }
-    virtual void store_nil(std::stringstream &ss, std::string offset) const {
-      assert(false);
-    }
-    virtual std::string store_field_start(std::stringstream &ss, std::string offset, int depth,
-                                          const tl::tl_tree_type *tree_type) const {
-      assert(false);
-      return "";
-    }
-    virtual void store_field_finish(std::stringstream &ss, std::string offset, std::string res_var) const {
-      assert(false);
-    }
-    virtual void store_arg_finish(std::stringstream &ss, std::string offset, std::string arg_name,
-                                  std::string res_var) const {
-      assert(false);
-    }
-    virtual void store_constructor_start(std::stringstream &ss, std::string offset, const tl::tl_combinator *t) const {
-    }
-    virtual void store_constructor_finish(std::stringstream &ss, std::string offset, const tl::tl_combinator *t,
-                                          std::vector<std::string> res_var) const {
-      assert(false);
-    }
-  };
-
-  struct file_store_methods_to_td final : public file_store_methods {
-    explicit file_store_methods_to_td(const class TlWriterCCommon *cl) : cl(cl) {
-    }
-    void store_simple_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           std::string type_name) const final {
-      if (type_name == "String") {
-        ss << offset << res_var << " = (" << var << ") ? " << var << ": \"\";\n";
-      } else if (type_name == "Bytes") {
-        ss << offset << res_var << " = std::string ((char *)" << var << ".data, " << var << ".len);\n";
-      } else if (type_name == "Bool") {
-        ss << offset << res_var << " = " << var << " != 0;\n";
-      } else {
-        ss << offset << res_var << " = " << var << ";\n";
-      }
-    }
-    void store_common_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           std::string type_name) const final {
-      ss << offset << res_var << " = TdConvertToInternal (" << var << ");\n";
-    }
-    void store_array_start(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           const tl::tl_tree_type *tree_type) const final {
-    }
-    void store_array_el(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                        std::string idx) const final {
-      ss << offset << res_var << ".push_back (std::move (" << var << "));\n";
-    }
-    void store_array_finish(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                            const tl::tl_tree_type *tree_type) const final {
-    }
-    void store_nil(std::stringstream &ss, std::string offset) const final {
-      ss << offset << "return nullptr;\n";
-    }
-    std::string store_field_start(std::stringstream &ss, std::string offset, int depth,
-                                  const tl::tl_tree_type *tree_type) const final {
-      std::string res_var = "v" + int_to_string(depth);
-      ss << offset << cl->gen_native_type_name(tree_type, true) << " " << res_var << ";\n";
-      return res_var;
-    }
-    void store_field_finish(std::stringstream &ss, std::string offset, std::string res_var) const final {
-    }
-    void store_arg_finish(std::stringstream &ss, std::string offset, std::string arg_name,
-                          std::string res_var) const final {
-    }
-    void store_constructor_finish(std::stringstream &ss, std::string offset, const tl::tl_combinator *t,
-                                  std::vector<std::string> res_var) const final {
-      auto native_class_name = cl->gen_native_class_name(t->name);
-      ss << offset << "return td::td_api::make_object<td::td_api::" << native_class_name << ">(";
-      bool is_first = true;
-      for (auto &var_name : res_var) {
-        if (is_first) {
-          is_first = false;
-        } else {
-          ss << ", ";
-        }
-
-        ss << "std::move (" << var_name << ")";
-      }
-      ss << ");\n";
-    }
-    const class TlWriterCCommon *cl;
-  };
-
-  struct file_store_methods_destroy final : public file_store_methods {
-    explicit file_store_methods_destroy(const class TlWriterCCommon *cl) : cl(cl) {
-    }
-    void store_simple_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           std::string type_name) const final {
-      if (type_name == "String") {
-        ss << offset << "free (" << var << ");\n";
-      } else if (type_name == "Bytes") {
-        ss << offset << "delete[]" << var << ".data;\n";
-      }
-    }
-    void store_common_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           std::string type_name) const final {
-      ss << offset << "TdDestroyObject (" << var << ");\n";
-    }
-    void store_array_start(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           const tl::tl_tree_type *tree_type) const final {
-    }
-    void store_array_el(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                        std::string idx) const final {
-    }
-    void store_array_finish(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                            const tl::tl_tree_type *tree_type) const final {
-      ss << offset << "delete[] " << var << "->data;\n" << offset << "delete " << var << ";\n";
-    }
-    void store_nil(std::stringstream &ss, std::string offset) const final {
-      ss << offset << "return;\n";
-    }
-    std::string store_field_start(std::stringstream &ss, std::string offset, int depth,
-                                  const tl::tl_tree_type *tree_type) const final {
-      return "";
-    }
-    void store_field_finish(std::stringstream &ss, std::string offset, std::string res_var) const final {
-    }
-    void store_arg_finish(std::stringstream &ss, std::string offset, std::string arg_name,
-                          std::string res_var) const final {
-    }
-    void store_constructor_start(std::stringstream &ss, std::string offset, const tl::tl_combinator *t) const final {
-      ss << "#if TD_MSVC\n";
-      ss << offset << "static_assert (sizeof (long) == sizeof (var->refcnt), \"Illegal InterlockedDecrement\");\n";
-      ss << offset << "int ref = InterlockedDecrement (reinterpret_cast<long *>(&var->refcnt));\n";
-      ss << "#else\n";
-      ss << offset << "int ref = __sync_add_and_fetch (&var->refcnt, -1);\n";
-      ss << "#endif\n";
-      ss << offset << "if (ref < 0) {\n";
-      ss << offset << "  LOG(FATAL) << \"Negative reference counter in Td C object struct\";\n";
-      ss << offset << "}\n";
-      ss << offset << "if (ref > 0) {\n";
-      ss << offset << "  return;\n";
-      ss << offset << "}\n";
-    }
-    void store_constructor_finish(std::stringstream &ss, std::string offset, const tl::tl_combinator *t,
-                                  std::vector<std::string> res_var) const final {
-      ss << offset << "delete var;\n";
-    }
-    const class TlWriterCCommon *cl;
-  };
-  struct file_store_methods_stack final : public file_store_methods {
-    explicit file_store_methods_stack(const class TlWriterCCommon *cl) : cl(cl) {
-    }
-    void store_simple_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           std::string type_name) const final {
-      if (type_name == "String") {
-        ss << offset << "M->pack_string (" << var << ");\n";
-      } else if (type_name == "Bytes") {
-        ss << offset << "M->pack_bytes (" << var << ".data, " << var << ".len);\n";
-      } else if (type_name == "Int32" || type_name == "Int53" || type_name == "Int64") {
-        ss << offset << "M->pack_long (" << var << ");\n";
-      } else if (type_name == "Bool") {
-        ss << offset << "M->pack_bool (" << var << ");\n";
-      } else if (type_name == "Double") {
-        ss << offset << "M->pack_double (" << var << ");\n";
-      } else {
-        ss << "????" << type_name << "\n";
-      }
-    }
-    void store_common_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           std::string type_name) const final {
-      ss << offset << "TdStackStorer (" << var << ", M);\n";
-    }
-    void store_array_start(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           const tl::tl_tree_type *tree_type) const final {
-      ss << offset << "M->new_array ();\n";
-    }
-    void store_array_el(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                        std::string idx) const final {
-      ss << offset << "M->new_arr_field (" << idx << ");\n";
-    }
-    void store_array_finish(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                            const tl::tl_tree_type *tree_type) const final {
-    }
-    void store_nil(std::stringstream &ss, std::string offset) const final {
-      ss << offset << "M->pack_bool (0);\n" << offset << "return;\n";
-    }
-    std::string store_field_start(std::stringstream &ss, std::string offset, int depth,
-                                  const tl::tl_tree_type *tree_type) const final {
-      return "";
-    }
-    void store_field_finish(std::stringstream &ss, std::string offset, std::string res_var) const final {
-    }
-    void store_arg_finish(std::stringstream &ss, std::string offset, std::string arg_name,
-                          std::string res_var) const final {
-      ss << offset << "M->new_field (\"" << arg_name << "\");\n";
-    }
-    void store_constructor_start(std::stringstream &ss, std::string offset, const tl::tl_combinator *t) const final {
-      ss << offset << "M->new_table ();\n";
-      auto class_name = cl->gen_class_name(t->name);
-      ss << offset << "M->pack_string (\"" << class_name << "\");\n";
-      ss << offset << "M->new_field (\"ID\");\n";
-    }
-    void store_constructor_finish(std::stringstream &ss, std::string offset, const tl::tl_combinator *t,
-                                  std::vector<std::string> res_var) const final {
-    }
-    const class TlWriterCCommon *cl;
-  };
-
-  struct file_fetch_methods {
-    file_fetch_methods() = default;
-    file_fetch_methods(const file_fetch_methods &) = delete;
-    file_fetch_methods &operator=(const file_fetch_methods &) = delete;
-
-    virtual ~file_fetch_methods() = default;
-
-    virtual std::string fetch_field_start(std::stringstream &ss, std::string offset, int depth,
-                                          const tl::tl_tree_type *tree_type) const {
-      assert(false);
-      return "";
-    }
-    virtual void fetch_simple_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                   std::string type_name) const {
-      assert(false);
-    }
-    virtual void fetch_common_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                   const tl::tl_tree_type *tree_type) const {
-      assert(false);
-    }
-    virtual void fetch_array_size(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                  const tl::tl_tree_type *tree_type) const {
-      assert(false);
-    }
-    virtual std::string fetch_array_field_start(std::stringstream &ss, std::string offset, std::string res_var,
-                                                std::string var, std::string idx,
-                                                const tl::tl_tree_type *tree_type) const {
-      assert(false);
-      return "";
-    }
-    virtual std::string fetch_dict_field_start(std::stringstream &ss, std::string offset, std::string res_var,
-                                               std::string var, std::string key,
-                                               const tl::tl_tree_type *tree_type) const {
-      assert(false);
-      return "";
-    }
-    virtual void fetch_field_finish(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                    const tl::tl_tree_type *tree_type) const {
-      assert(false);
-    }
-  };
-
-  struct file_fetch_methods_from_td final : public file_fetch_methods {
-    explicit file_fetch_methods_from_td(const class TlWriterCCommon *cl) : cl(cl) {
-    }
-    std::string fetch_field_start(std::stringstream &ss, std::string offset, int depth,
-                                  const tl::tl_tree_type *tree_type) const final {
-      return "";
-    }
-    void fetch_simple_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           std::string type_name) const final {
-      if (type_name == "String") {
-        ss << offset << res_var << " = (" << var << ".length ()) ? td::str_dup (" << var << ") : nullptr;\n";
-      } else if (type_name == "Bytes") {
-        ss << offset << res_var << ".len = (int)" << var << ".length ();\n";
-        ss << offset << "if (" << res_var << ".len) {\n";
-        ss << offset << "  " << res_var << ".data = new unsigned char[" << res_var << ".len];\n";
-        ss << offset << "  memcpy (" << res_var << ".data, " << var << ".c_str (), " << res_var << ".len);\n";
-        ss << offset << "} else {\n";
-        ss << offset << "  " << res_var << ".data = nullptr;\n";
-        ss << offset << "}\n";
-      } else {
-        ss << offset << res_var << " = " << var << ";\n";
-      }
-    }
-    void fetch_common_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           const tl::tl_tree_type *tree_type) const final {
-      auto native_type_name = cl->gen_native_type_name(tree_type, false);
-      ss << offset << "if (!" << var << ") {\n"
-         << offset << "  " << res_var << " = nullptr;\n"
-         << offset << "} else {\n"
-         << offset << "  " << res_var << " = TdConvertFromInternal (static_cast<const " << native_type_name << " &>(*"
-         << var << "));\n"
-         << offset << "}\n";
-    }
-    void fetch_array_size(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                          const tl::tl_tree_type *tree_type) const final {
-      ss << offset << res_var << " = (int)" << var << ".size ();\n";
-    }
-    std::string fetch_array_field_start(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                        std::string idx, const tl::tl_tree_type *tree_type) const final {
-      return var + "[" + idx + "]";
-    }
-    std::string fetch_dict_field_start(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                       std::string key, const tl::tl_tree_type *tree_type) const final {
-      return var + "." + key;
-    }
-    void fetch_field_finish(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                            const tl::tl_tree_type *tree_type) const final {
-    }
-    const class TlWriterCCommon *cl;
-  };
-
-  struct file_fetch_methods_stack final : public file_fetch_methods {
-    explicit file_fetch_methods_stack(const class TlWriterCCommon *cl) : cl(cl) {
-    }
-    std::string fetch_field_start(std::stringstream &ss, std::string offset, int depth,
-                                  const tl::tl_tree_type *tree_type) const final {
-      return "";
-    }
-    void fetch_simple_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           std::string type_name) const final {
-      if (type_name == "String") {
-        ss << offset << res_var << " = M->get_string ();\n";
-      } else if (type_name == "Bytes") {
-        ss << offset << res_var << ".data = M->get_bytes (&" << res_var << ".len);\n";
-      } else if (type_name == "Int32" || type_name == "Bool") {
-        ss << offset << res_var << " = (int)M->get_long ();\n";
-      } else if (type_name == "Int53" || type_name == "Int64") {
-        ss << offset << res_var << " = M->get_long ();\n";
-      } else if (type_name == "Double") {
-        ss << offset << res_var << " = M->get_double ();\n";
-      } else {
-        ss << "??????" << type_name << "\n";
-      }
-    }
-    void fetch_common_type(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                           const tl::tl_tree_type *tree_type) const final {
-      auto class_name = cl->gen_main_class_name(tree_type->type);
-      ss << offset << "if (M->is_nil ()) {\n"
-         << offset << "  " << res_var << " = nullptr;\n"
-         << offset << "} else {\n"
-         << offset << "  " << res_var << " = TdStackFetcher" << class_name << " (M);\n"
-         << offset << "}\n";
-    }
-    void fetch_array_size(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                          const tl::tl_tree_type *tree_type) const final {
-      ss << offset << res_var << " = M->get_arr_size ();\n";
-    }
-    std::string fetch_array_field_start(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                        std::string idx, const tl::tl_tree_type *tree_type) const final {
-      ss << offset << "  M->get_arr_field (" << idx << ");\n";
-      return "";
-    }
-    std::string fetch_dict_field_start(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                                       std::string key, const tl::tl_tree_type *tree_type) const final {
-      ss << offset << "M->get_field (\"" << key << "\");\n";
-      return "";
-    }
-    void fetch_field_finish(std::stringstream &ss, std::string offset, std::string res_var, std::string var,
-                            const tl::tl_tree_type *tree_type) const final {
-      ss << offset << "M->pop ();\n";
-    }
-    const class TlWriterCCommon *cl;
-  };
-
-  std::string gen_field_store(std::stringstream &ss, std::string offset, std::string var, int depth,
-                              const tl::tl_tree_type *tree_type, const file_store_methods &M) const {
-    std::string res_var = M.store_field_start(ss, offset, depth, tree_type);
-    if (is_built_in_simple_type(tree_type->type->name)) {
-      M.store_simple_type(ss, offset, res_var, var, tree_type->type->name);
-    } else if (!is_built_in_complex_type(tree_type->type->name)) {
-      M.store_common_type(ss, offset, res_var, var, tree_type->type->name);
-    } else {
-      const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-
-      std::string it = "i" + int_to_string(depth);
-
-      M.store_array_start(ss, offset, res_var, var, tree_type);
-      ss << offset << "for (int " << it << " = 0; " << it << " < " << var << "->len; " << it << "++) {\n";
-      auto f_res_var = gen_field_store(ss, offset + "  ", var + "->data[" + it + "]", depth + 1, child, M);
-      M.store_array_el(ss, offset + "  ", res_var, f_res_var, it);
-      ss << offset << "}\n";
-      M.store_array_finish(ss, offset, res_var, var, tree_type);
-    }
-    M.store_field_finish(ss, offset, res_var);
-    return res_var;
-  }
-  void gen_object_store(std::stringstream &ss, const tl::tl_combinator *t, const file_store_methods &M) const {
-    ss << " {\n"
-       << "  if (!var) {\n";
-    M.store_nil(ss, "    ");
-    ss << "  }\n";
-    M.store_constructor_start(ss, "  ", t);
-
-    std::vector<std::string> flds;
-    int d = 0;
-    for (auto &it : t->args) {
-      const tl::tl_tree_type *tree_type = static_cast<const tl::tl_tree_type *>(it.type);
-      flds.push_back(gen_field_store(ss, "  ", "var->" + gen_field_name(it.name), 100 * d, tree_type, M));
-      d++;
-      M.store_arg_finish(ss, "  ", gen_field_name(it.name), flds[d - 1]);
-    }
-    M.store_constructor_finish(ss, "  ", t, flds);
-    ss << "}\n";
-  }
-  void gen_field_fetch(std::stringstream &ss, std::string offset, std::string res_var, std::string var, int depth,
-                       const tl::tl_tree_type *tree_type, const file_fetch_methods &M) const {
-    if (is_built_in_simple_type(tree_type->type->name)) {
-      M.fetch_simple_type(ss, offset, res_var, var, tree_type->type->name);
-    } else if (!is_built_in_complex_type(tree_type->type->name)) {
-      M.fetch_common_type(ss, offset, res_var, var, tree_type);
-    } else {
-      const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-
-      ss << offset << res_var << " = new Td" << gen_type_name(tree_type, true) << " ();\n";
-      M.fetch_array_size(ss, offset, res_var + "->len", var, tree_type);
-      ss << offset << res_var << "->data = new " << gen_type_name(child) << " [" << res_var << "->len];\n";
-
-      std::string it = "i" + int_to_string(depth);
-      ss << offset << "for (int " << it << " = 0; " << it << " < " << res_var << "->len; " << it << "++) {\n";
-      auto new_var = M.fetch_array_field_start(ss, offset, res_var, var, it, child);
-      gen_field_fetch(ss, offset + "  ", res_var + "->data[" + it + "]", new_var, depth + 1, child, M);
-      ss << offset << "}\n";
-    }
-    M.fetch_field_finish(ss, offset, res_var, var, tree_type);
-  }
-  void gen_object_fetch(std::stringstream &ss, const tl::tl_combinator *t, const file_fetch_methods &M) const {
-    auto type_name = gen_class_name(t->name);
-    ss << " {\n"
-       << "  auto res = new Td" << type_name << " ();\n"
-       << "  res->ID = CODE_" << type_name << ";\n"
-       << "  res->refcnt = 1;\n";
-    int d = 0;
-    for (auto &it : t->args) {
-      const tl::tl_tree_type *tree_type = static_cast<const tl::tl_tree_type *>(it.type);
-      auto new_var = M.fetch_dict_field_start(ss, "  ", "res", "from", gen_field_name(it.name), tree_type);
-      gen_field_fetch(ss, "  ", "res->" + gen_field_name(it.name), new_var, 100 * d, tree_type, M);
-      d++;
-    }
-    ss << "  return res;\n"
-       << "}\n";
-  }
-
-  std::string gen_array_type_name(const tl::tl_tree_array *arr, const std::string &field_name) const final {
-    assert(false);
-    return std::string();
-  }
-  std::string gen_var_type_name() const final {
-    assert(false);
-    return std::string();
-  }
-
-  std::string gen_int_const(const tl::tl_tree *tree_c, const std::vector<tl::var_description> &vars) const final {
-    assert(false);
-    return std::string();
-  }
-
-  std::string gen_var_name(const tl::var_description &desc) const final {
-    assert(false);
-    return "";
-  }
-  std::string gen_parameter_name(int index) const final {
-    assert(false);
-    return "";
-  }
-
-  std::string gen_class_alias(const std::string &class_name, const std::string &alias_name) const final {
-    return "";
-  }
-
-  std::string gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                       std::vector<tl::var_description> &vars) const final {
-    assert(vars.empty());
-    return "";
-  }
-  std::string gen_function_vars(const tl::tl_combinator *t, std::vector<tl::var_description> &vars) const final {
-    assert(vars.empty());
-    return "";
-  }
-  std::string gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                      bool check_negative) const final {
-    assert(result_type->children.empty());
-    return "";
-  }
-  std::string gen_constructor_id_store(std::int32_t id, int storer_type) const final {
-    return "";
-  }
-  std::string gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars, bool flat,
-                              int parser_type) const final {
-    return "";
-  }
-  std::string gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                              std::vector<tl::var_description> &vars, bool flat, int storer_type) const final {
-    return "";
-  }
-  std::string gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int parser_type) const final {
-    assert(vars.empty());
-    return "";
-  }
-
-  std::string gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int storer_type) const final {
-    return "";
-  }
-  std::string gen_var_type_fetch(const tl::arg &a) const final {
-    assert(false);
-    return "";
-  }
-
-  std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const final {
-    if (is_proxy || is_header_ != 1) {
-      return "";
-    }
-    return "";
-  }
-
-  std::string gen_function_result_type(const tl::tl_tree *result) const final {
-    return "";
-  }
-
-  std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                       const std::string &parent_class_name, int arity, int field_count,
-                                       std::vector<tl::var_description> &vars, int parser_type) const final {
-    return "";
-  }
-  std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<tl::var_description> &vars,
-                                     int parser_type) const final {
-    return "";
-  }
-
-  std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
-                                              const tl::tl_tree *result) const final {
-    return "";
-  }
-  std::string gen_fetch_function_result_end() const final {
-    return "";
-  }
-  std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
-                                                  bool is_proxy) const final {
-    return "";
-  }
-  std::string gen_fetch_function_result_any_end(bool is_proxy) const final {
-    return "";
-  }
-
-  std::string gen_fetch_switch_begin() const final {
-    return "";
-  }
-  std::string gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const final {
-    return "";
-  }
-  std::string gen_fetch_switch_end() const final {
-    return "";
-  }
-
-  std::string gen_additional_proxy_function_begin(const std::string &function_name, const tl::tl_type *type,
-                                                  const std::string &name, int arity, bool is_function) const final {
-    std::stringstream ss;
-    std::string class_name;
-    std::string native_class_name;
-
-    if (type != nullptr) {
-      class_name = gen_main_class_name(type);
-      native_class_name = gen_native_class_name(type->name);
-    } else {
-      if (is_function) {
-        class_name = "Function";
-        native_class_name = "Function";
-      } else {
-        class_name = "Object";
-        native_class_name = "Object";
-      }
-    }
-    if (is_header_ == 1 && function_name == "TdConvertToInternal" && type != nullptr && !is_function) {
-      ss << "};\n";
-    }
-
-    if (function_name == "enum") {
-      if (is_header_ != 1) {
-        return ss.str();
-      }
-      ss << "enum List_" + class_name << " {\n";
-      return ss.str();
-    }
-
-    if (function_name == "TdDestroyObject") {
-      if (is_header_ == 1) {
-        ss << "void TdDestroyObject" + class_name + " (struct Td" + class_name + " *var);\n";
-        return ss.str();
-      }
-      if (is_header_ == -1) {
-        ss << "void TdDestroyObject (struct Td" + class_name + " *var);\n";
-        return ss.str();
-      }
-      ss << "void TdDestroyObject" + class_name + " (struct Td" + class_name + " *var) {\n";
-      ss << "  TdDestroyObject (var);\n";
-      ss << "}\n";
-      ss << "void TdDestroyObject (struct Td" + class_name + " *var)";
-    }
-    if (function_name == "TdSerialize" && is_header_ != -1) {
-      ss << "char *TdSerialize" + class_name + " (struct Td" + class_name + " *var)";
-      if (is_header_ == 1) {
-        ss << ";\n";
-        return ss.str();
-      }
-      ss << " {\n";
-      ss << "  return td::str_dup (TdToString (var));\n";
-      ss << "}\n";
-      return ss.str();
-    }
-    if (function_name == "TdToString" && is_header_ != 1) {
-      ss << "std::string TdToString (struct Td" + class_name + " *var)";
-      if (is_header_ == -1) {
-        ss << ";\n";
-        return ss.str();
-      }
-      ss << " {\n";
-      ss << "  return to_string (TdConvertToInternal (var));\n";
-      ss << "}\n";
-      return ss.str();
-    }
-    if (function_name == "TdConvertToInternal" && is_header_ != 1) {
-      ss << "td::td_api::object_ptr<td::td_api::" << native_class_name
-         << "> TdConvertToInternal (struct Td" + class_name + " *var)";
-      if (is_header_ == -1) {
-        ss << ";\n";
-        return ss.str();
-      }
-    }
-    if (function_name == "TdConvertFromInternal" && is_header_ != 1) {
-      ss << "struct Td" << class_name << " *TdConvertFromInternal (const td::td_api::" << native_class_name
-         << " &from)";
-      if (is_header_ == -1) {
-        ss << ";\n";
-        return ss.str();
-      }
-    }
-    if (function_name == "TdStackStorer") {
-      if (is_header_ == 1) {
-        ss << "void TdStackStorer" + class_name + " (struct Td" + class_name +
-                  " *var, struct TdStackStorerMethods *M);\n";
-        return ss.str();
-      }
-      if (is_header_ == -1) {
-        ss << "void TdStackStorer (struct Td" + class_name + " *var, struct TdStackStorerMethods *M);\n";
-        return ss.str();
-      }
-      ss << "void TdStackStorer" + class_name + " (struct Td" + class_name +
-                " *var, struct TdStackStorerMethods *M) {\n";
-      ss << "  TdStackStorer (var, M);\n";
-      ss << "}\n";
-      ss << "void TdStackStorer (struct Td" + class_name + " *var, struct TdStackStorerMethods *M)";
-    }
-    if (function_name == "TdStackFetcher" && is_header_ != -1) {
-      ss << "struct Td" << class_name << " *TdStackFetcher" + class_name + " (struct TdStackFetcherMethods *M)";
-      if (is_header_ == 1) {
-        ss << ";\n";
-        return ss.str();
-      }
-    }
-    if (is_header_ != 0) {
-      return ss.str();
-    }
-
-    if (function_name == "TdDestroyObject" || function_name == "TdConvertToInternal" ||
-        function_name == "TdStackStorer") {
-      ss << " {\n";
-      std::string prefix = "";
-      if (function_name == "TdConvertToInternal") {
-        prefix = "  if (!var) { return nullptr; }\n";
-      } else if (function_name == "TdDestroyObject") {
-        prefix = "  if (!var) { return; }\n";
-      }
-      if (function_name == "TdStackStorer") {
-        prefix = "  if (!var) { M->pack_bool (0); return; }\n";
-      }
-      ss << prefix
-         << "  int constructor = var->ID;\n"
-            "  switch (constructor) {\n";
-    } else if (function_name == "TdConvertFromInternal") {
-      ss << " {\n"
-            //"  if (!from) { return nullptr; }\n"
-            "  int constructor = from.get_id ();\n"
-            "  switch (constructor) {\n";
-    } else if (function_name == "TdStackFetcher") {
-      ss << " {\n"
-            "  M->get_field (\"ID\");\n"
-            "  char *constructor_old = M->get_string ();\n"
-            "  M->pop ();\n"
-            "  std::string constructor = constructor_old;\n"
-            "  free (constructor_old);\n"
-            "  ";
-    } else {
-      ss << "??????";
-    }
-
-    return ss.str();
-  }
-
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl::tl_type *type,
-                                                 const std::string &class_name, int arity) const final {
-    if (is_header_ != (function_name == "enum" ? 1 : 0)) {
-      return "";
-    }
-
-    assert(type != nullptr);
-    if (function_name == "TdDestroyObject" || function_name == "TdConvertToInternal" ||
-        function_name == "TdStackStorer") {
-      std::string extra_arg = "";
-      if (function_name == "TdStackStorer") {
-        extra_arg = ", M";
-      }
-      return "    case CODE_" + class_name + ": return " + function_name + " ((struct Td" + class_name + " *)var" +
-             extra_arg + ");\n";
-    } else if (function_name == "TdConvertFromInternal") {
-      std::string native_class_name = class_name;
-      native_class_name[0] = to_lower(native_class_name[0]);
-      return "    case CODE_" + class_name + ": return (struct TdNullaryObject *)" + function_name +
-             "(static_cast<const td::td_api::" + native_class_name + " &>(from));\n";
-    } else if (function_name == "TdStackFetcher") {
-      return "if (constructor == \"" + class_name +
-             "\") {\n"
-             "    return (struct TdNullaryObject *)TdStackFetcher" +
-             class_name +
-             " (M);\n"
-             "  }\n  ";
-    } else if (function_name == "enum") {
-      // return "  CODE_" + class_name + " = " + int_to_string (t->id) + ",\n";
-      return "????\n";
-    } else {
-      return "";
-    }
-  }
-
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl::tl_type *type,
-                                                 const tl::tl_combinator *t, int arity, bool is_function) const final {
-    if (is_header_ != (function_name == "enum" ? 1 : 0)) {
-      return "";
-    }
-
-    if (function_name == "TdDestroyObject" || function_name == "TdConvertToInternal" ||
-        function_name == "TdStackStorer") {
-      auto class_name = gen_class_name(t->name);
-      std::string extra_arg = "";
-      if (function_name == "TdStackStorer") {
-        extra_arg = ", M";
-      }
-      return "    case CODE_" + gen_class_name(t->name) + ": return " + function_name + " ((struct Td" + class_name +
-             " *)var" + extra_arg + ");\n";
-    } else if (function_name == "TdConvertFromInternal") {
-      const tl::tl_tree_type *tree_type = static_cast<const tl::tl_tree_type *>(t->result);
-
-      auto native_class_name = gen_native_class_name(t->name);
-      auto class_name = gen_main_class_name(tree_type->type);
-      if (type == nullptr) {
-        if (is_function) {
-          class_name = "Function";
-        } else {
-          class_name = "Object";
-        }
-      }
-      return "    case CODE_" + gen_class_name(t->name) + ": return (struct Td" + class_name + " *)" + function_name +
-             "(static_cast<const td::td_api::" + native_class_name + " &>(from));\n";
-    } else if (function_name == "enum") {
-      const tl::tl_tree_type *tree_type = static_cast<const tl::tl_tree_type *>(t->result);
-
-      auto native_class_name = gen_native_class_name(t->name);
-      auto class_name = gen_main_class_name(tree_type->type);
-      if (type == nullptr) {
-        if (is_function) {
-          class_name = "Function";
-        } else {
-          class_name = "Object";
-        }
-      }
-
-      int flat = 0;
-      if (!is_function) {
-        if (tree_type->type->constructors_num == 1) {
-          flat = 1;
-        }
-      }
-
-      if (class_name == "Object" && !flat) {
-        return "  CODE_Copy_" + gen_class_name(t->name) + " = " + int_to_string(t->id) + ",\n";
-      } else {
-        return "  CODE_" + gen_class_name(t->name) + " = " + int_to_string(t->id) + ",\n";
-      }
-    } else if (function_name == "TdStackFetcher") {
-      const tl::tl_tree_type *tree_type = static_cast<const tl::tl_tree_type *>(t->result);
-
-      auto native_class_name = gen_native_class_name(t->name);
-      auto class_name = gen_main_class_name(tree_type->type);
-      if (type == nullptr) {
-        if (is_function) {
-          class_name = "Function";
-        } else {
-          class_name = "Object";
-        }
-      }
-
-      return "if (constructor == \"" + gen_class_name(t->name) +
-             "\") {\n"
-             "    return (struct Td" +
-             class_name + " *)TdStackFetcher" + gen_class_name(t->name) +
-             " (M);\n"
-             "  }\n  ";
-    } else {
-      return "";
-    }
-  }
-  std::string gen_additional_proxy_function_end(const std::string &function_name, const tl::tl_type *type,
-                                                bool is_function) const final {
-    if (is_header_ != (function_name == "enum" ? 1 : 0)) {
-      return "";
-    }
-
-    if (function_name == "TdDestroyObject" || function_name == "TdConvertToInternal" ||
-        function_name == "TdConvertFromInternal" || function_name == "TdStackStorer") {
-      std::string retval = "";
-      if (function_name == "TdConvertToInternal" || function_name == "TdConvertFromInternal") {
-        retval = "nullptr";
-      }
-      return "    default:\n"
-             "      LOG(FATAL) << \"Unknown constructor found \" << td::format::as_hex(constructor);\n"
-             "      return " +
-             retval +
-             ";\n"
-             "  }\n"
-             "}\n";
-    } else if (function_name == "TdStackFetcher") {
-      return "{\n"
-             "    LOG(FATAL) << \"Unknown constructor found \" << constructor;\n"
-             "    return nullptr;\n"
-             "  }\n"
-             "}\n";
-    } else if (function_name == "enum") {
-      return "};\n";
-    } else {
-      return "";
-    }
-  }
-
-  int get_additional_function_type(const std::string &additional_function_name) const final {
-    return 2;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_cpp.cpp b/third-party/td/td/td/generate/tl_writer_cpp.cpp
deleted file mode 100644
index aeaa39906e..0000000000
--- a/third-party/td/td/td/generate/tl_writer_cpp.cpp
+++ /dev/null
@@ -1,733 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_cpp.h"
-
-#include <cassert>
-
-namespace td {
-
-std::string TD_TL_writer_cpp::gen_output_begin(const std::string &additional_imports) const {
-  std::string ext_include_str;
-  for (auto &it : ext_include) {
-    ext_include_str += "#include " + it + "\n";
-  }
-  if (!ext_include_str.empty()) {
-    ext_include_str += "\n";
-  }
-
-  return "#include \"" + tl_name + ".h\"\n\n" + ext_include_str +
-         "#include \"td/utils/common.h\"\n"
-         "#include \"td/utils/format.h\"\n"
-         "#include \"td/utils/logging.h\"\n"
-         "#include \"td/utils/SliceBuilder.h\"\n"
-         "#include \"td/utils/tl_parsers.h\"\n"
-         "#include \"td/utils/tl_storers.h\"\n"
-         "#include \"td/utils/TlStorerToString.h\"\n\n" +
-         additional_imports +
-         "namespace td {\n"
-         "namespace " +
-         tl_name + " {\n\n";
-}
-
-std::string TD_TL_writer_cpp::gen_output_begin_once() const {
-  return "std::string to_string(const BaseObject &value) {\n"
-         "  TlStorerToString storer;\n"
-         "  value.store(storer, \"\");\n"
-         "  return storer.move_as_string();\n"
-         "}\n";
-}
-
-std::string TD_TL_writer_cpp::gen_output_end() const {
-  return "}  // namespace " + tl_name +
-         "\n"
-         "}  // namespace td\n";
-}
-
-std::string TD_TL_writer_cpp::gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                                   const std::string &field_name) const {
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                                       std::vector<tl::var_description> &vars) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    vars[i].index = static_cast<int>(i);
-    vars[i].is_stored = false;
-    vars[i].is_type = false;
-    vars[i].parameter_num = -1;
-    vars[i].function_arg_num = -1;
-  }
-
-  if (result_type != nullptr) {
-    assert(result_type->children.empty());
-  }
-
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    const tl::arg &a = t->args[i];
-
-    int arg_type = a.type->get_type();
-    if (arg_type == tl::NODE_TYPE_VAR_TYPE) {
-      const tl::tl_tree_var_type *var_type = static_cast<const tl::tl_tree_var_type *>(a.type);
-      assert(a.flags & tl::FLAG_EXCL);
-      assert(var_type->var_num < static_cast<int>(vars.size()));
-      assert(var_type->var_num >= 0);
-      assert(!vars[var_type->var_num].is_type);
-      vars[var_type->var_num].is_type = true;
-      vars[var_type->var_num].function_arg_num = static_cast<int>(i);
-    }
-  }
-
-  std::string res;
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    if (!vars[i].is_type) {
-      assert(vars[i].parameter_num == -1);
-      assert(vars[i].function_arg_num == -1);
-      assert(!vars[i].is_stored);
-      res += "  " + gen_class_name("#") + " " + gen_var_name(vars[i]) + ";\n";
-    }
-  }
-  return res;
-}
-
-std::string TD_TL_writer_cpp::gen_function_vars(const tl::tl_combinator *t,
-                                                std::vector<tl::var_description> &vars) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    vars[i].index = static_cast<int>(i);
-    vars[i].is_stored = false;
-    vars[i].is_type = false;
-    vars[i].parameter_num = -1;
-    vars[i].function_arg_num = -1;
-  }
-
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    const tl::arg &a = t->args[i];
-
-    int arg_type = a.type->get_type();
-    if (arg_type == tl::NODE_TYPE_VAR_TYPE) {
-      const tl::tl_tree_var_type *var_type = static_cast<const tl::tl_tree_var_type *>(a.type);
-      assert(a.flags & tl::FLAG_EXCL);
-      assert(var_type->var_num >= 0);
-      assert(!vars[var_type->var_num].is_type);
-      vars[var_type->var_num].is_type = true;
-      vars[var_type->var_num].function_arg_num = static_cast<int>(i);
-    }
-  }
-
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                                      bool check_negative) const {
-  assert(result_type->children.empty());
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_constructor_id_store_raw(const std::string &id) const {
-  return "s.store_binary(" + id + ");";
-}
-
-std::string TD_TL_writer_cpp::gen_constructor_id_store(std::int32_t id, int storer_type) const {
-  if (storer_type == 1) {
-    return "";
-  }
-  return "  " + gen_constructor_id_store_raw(int_to_string(id)) + "\n";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_class_name(const tl::tl_tree_type *tree_type) const {
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  if (name == "#" || name == "Int32") {
-    return "TlFetchInt";
-  }
-  if (name == "Int53" || name == "Int64") {
-    return "TlFetchLong";
-  }
-  if (name == "True" || name == "Bool" || name == "Int" || name == "Long" || name == "Double" || name == "Int128" ||
-      name == "Int256" || name == "Int512") {
-    return "TlFetch" + name;
-  }
-  if (name == "String") {
-    return "TlFetchString<string>";
-  }
-  if (name == "Bytes") {
-    return "TlFetchBytes<bytes>";
-  }
-  if (name == "SecureString") {
-    return "TlFetchString<secure_string>";
-  }
-  if (name == "SecureBytes") {
-    return "TlFetchBytes<secure_bytes>";
-  }
-
-  if (name == "Vector") {
-    assert(t->arity == 1);
-    assert(tree_type->children.size() == 1);
-    assert(tree_type->children[0]->get_type() == tl::NODE_TYPE_TYPE);
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-
-    return "TlFetchVector<" + gen_full_fetch_class_name(child) + ">";
-  }
-
-  assert(!is_built_in_simple_type(name) && !is_built_in_complex_type(name));
-  for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-    assert(tree_type->children[i]->get_type() == tl::NODE_TYPE_NAT_CONST);
-  }
-
-  assert(tree_type->children.empty());
-  return "TlFetchObject<" + gen_main_class_name(t) + ">";
-}
-
-std::string TD_TL_writer_cpp::gen_full_fetch_class_name(const tl::tl_tree_type *tree_type) const {
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  assert(!(t->flags & tl::FLAG_DEFAULT_CONSTRUCTOR));  // Not supported yet
-
-  std::int32_t expected_constructor_id = 0;
-  if (tree_type->flags & tl::FLAG_BARE) {
-    assert(is_type_bare(t));
-  } else {
-    if (is_type_bare(t)) {
-      for (std::size_t i = 0; i < t->constructors_num; i++) {
-        if (is_built_in_complex_type(name) || is_combinator_supported(t->constructors[i])) {
-          assert(expected_constructor_id == 0);
-          expected_constructor_id = t->constructors[i]->id;
-          assert(expected_constructor_id != 0);
-        }
-      }
-    }
-  }
-  if (expected_constructor_id == 0) {
-    return gen_fetch_class_name(tree_type);
-  }
-  return "TlFetchBoxed<" + gen_fetch_class_name(tree_type) + ", " + int_to_string(expected_constructor_id) + ">";
-}
-
-std::string TD_TL_writer_cpp::gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                             const std::vector<tl::var_description> &vars, int parser_type) const {
-  return gen_full_fetch_class_name(tree_type) + "::parse(p)";
-}
-
-std::string TD_TL_writer_cpp::gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars,
-                                              bool flat, int parser_type) const {
-  assert(parser_type >= 0);
-  std::string field_name = (parser_type == 0 ? (field_num == 0 ? ": " : ", ") : "res->") + gen_field_name(a.name);
-
-  if (a.type->get_type() == tl::NODE_TYPE_VAR_TYPE) {
-    assert(parser_type == 1);
-
-    const tl::tl_tree_var_type *t = static_cast<const tl::tl_tree_var_type *>(a.type);
-    assert(a.flags == tl::FLAG_EXCL);
-
-    assert(a.var_num == -1);
-    assert(a.exist_var_num == -1);
-
-    assert(t->var_num >= 0);
-    assert(vars[t->var_num].is_type);
-    assert(!vars[t->var_num].is_stored);
-    vars[t->var_num].is_stored = true;
-
-    return "  " + field_name + " = " + gen_base_function_class_name() + "::fetch(p);\n";
-  }
-
-  assert(!(a.flags & tl::FLAG_EXCL));
-  assert(!(a.flags & tl::FLAG_OPT_VAR));
-
-  if (a.exist_var_num != -1) {
-    assert(0 <= a.exist_var_num && a.exist_var_num < static_cast<int>(vars.size()));
-    assert(vars[a.exist_var_num].is_stored);
-
-    if (a.var_num == -1 && parser_type != 0) {
-      assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-      const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(a.type);
-      if (tree_type->flags & tl::FLAG_BARE && tree_type->type->name == "True") {
-        assert(is_type_bare(tree_type->type));
-        return "  " + field_name + " = (" + gen_var_name(vars[a.exist_var_num]) + " & " +
-               int_to_string(1 << a.exist_var_bit) + ") != 0;\n";
-      }
-    }
-  }
-
-  std::string res = "  ";
-  if (a.exist_var_num != -1) {
-    res += "if (" + gen_var_name(vars[a.exist_var_num]) + " & " + int_to_string(1 << a.exist_var_bit) + ") { ";
-  }
-
-  if (flat) {
-    //    TODO
-    //    return gen_field_fetch(const tl::arg &a, std::vector<tl::var_description> &vars, int num, bool flat);
-  }
-
-  bool store_to_var_num = false;
-  if (a.var_num >= 0) {
-    assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-    assert(static_cast<const tl::tl_tree_type *>(a.type)->type->id == tl::ID_VAR_NUM);
-    assert(0 <= a.var_num && a.var_num < static_cast<int>(vars.size()));
-    if (!vars[a.var_num].is_stored) {
-      res += "if ((" + gen_var_name(vars[a.var_num]) + " = ";
-      store_to_var_num = true;
-    } else {
-      assert(false);
-    }
-    vars[a.var_num].is_stored = true;
-  }
-
-  res += field_name + (parser_type == 0 ? "(" : " = ");
-
-  assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-  const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(a.type);
-  res += gen_type_fetch(field_name, tree_type, vars, parser_type);
-  if (store_to_var_num) {
-    res += ") < 0) { FAIL(\"Variable of type # can't be negative\"); }";
-  } else {
-    res += (parser_type == 0 ? ")" : ";");
-  }
-
-  if (a.exist_var_num >= 0) {
-    res += " }";
-    if (store_to_var_num) {
-      res += " else { " + gen_var_name(vars[a.var_num]) + " = 0; }";
-    }
-  }
-  res += "\n";
-  return res;
-}
-
-std::string TD_TL_writer_cpp::gen_var_type_fetch(const tl::arg &a) const {
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_cpp::get_pretty_field_name(std::string field_name) const {
-  if (!field_name.empty() && field_name[0] == '_') {
-    return "";
-  }
-  auto equals_pos = field_name.find('=');
-  if (equals_pos != std::string::npos && equals_pos + 3 < field_name.size()) {
-    field_name = field_name.substr(equals_pos + 2);
-    auto bar_pos = field_name.find('|');
-    if (bar_pos != std::string::npos && bar_pos >= 2 && field_name[bar_pos - 1] == ' ') {
-      field_name = field_name.substr(0, bar_pos - 1);
-    } else if (field_name.back() == ')') {
-      field_name.pop_back();
-    }
-  }
-  while (!field_name.empty() && field_name.back() == '_') {
-    field_name.pop_back();
-  }
-  return field_name;
-}
-
-std::string TD_TL_writer_cpp::get_pretty_class_name(std::string class_name) const {
-  if (tl_name != "mtproto_api") {
-    for (std::size_t i = 0; i < class_name.size(); i++) {
-      if (class_name[i] == '_') {
-        class_name[i] = '.';
-      }
-    }
-  }
-  return class_name;
-}
-
-std::string TD_TL_writer_cpp::gen_vector_store(const std::string &field_name, const tl::tl_tree_type *t,
-                                               const std::vector<tl::var_description> &vars, int storer_type) const {
-  std::string num = !field_name.empty() && field_name[0] == '_' ? "2" : "";
-  return "{ s.store_vector_begin(\"" + get_pretty_field_name(field_name) + "\", " + field_name +
-         ".size()); for (const auto &_value" + num + " : " + field_name + ") { " +
-         gen_type_store("_value" + num, t, vars, storer_type) + " } s.store_class_end(); }";
-}
-
-std::string TD_TL_writer_cpp::gen_store_class_name(const tl::tl_tree_type *tree_type) const {
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  if (name == "#" || name == "Int" || name == "Long" || name == "Int32" || name == "Int53" || name == "Int64" ||
-      name == "Double" || name == "Int128" || name == "Int256" || name == "Int512") {
-    return "TlStoreBinary";
-  }
-  if (name == "Bool") {
-    return "TlStoreBool";
-  }
-  if (name == "True") {
-    assert(false);
-    return "";
-  }
-  if (name == "String" || name == "Bytes" || name == "SecureString" || name == "SecureBytes") {
-    return "TlStoreString";
-  }
-
-  if (name == "Vector") {
-    assert(t->arity == 1);
-    assert(tree_type->children.size() == 1);
-    assert(tree_type->children[0]->get_type() == tl::NODE_TYPE_TYPE);
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-
-    return "TlStoreVector<" + gen_full_store_class_name(child) + ">";
-  }
-
-  assert(!is_built_in_simple_type(name) && !is_built_in_complex_type(name));
-  for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-    assert(tree_type->children[i]->get_type() == tl::NODE_TYPE_NAT_CONST);
-  }
-
-  assert(tree_type->children.empty());
-  return "TlStoreObject";
-}
-
-std::string TD_TL_writer_cpp::gen_full_store_class_name(const tl::tl_tree_type *tree_type) const {
-  const tl::tl_type *t = tree_type->type;
-
-  assert(!(t->flags & tl::FLAG_DEFAULT_CONSTRUCTOR));  // Not supported yet
-
-  if ((tree_type->flags & tl::FLAG_BARE) != 0 || t->name == "#" || t->name == "Bool") {
-    return gen_store_class_name(tree_type);
-  }
-
-  if (is_built_in_complex_type(t->name)) {
-    return "TlStoreBoxed<" + gen_store_class_name(tree_type) + ", " + int_to_string(t->constructors[0]->id) + ">";
-  }
-
-  if (!is_type_bare(t)) {
-    return "TlStoreBoxedUnknown<" + gen_store_class_name(tree_type) + ">";
-  }
-
-  for (std::size_t i = 0; i < t->constructors_num; i++) {
-    if (is_combinator_supported(t->constructors[i])) {
-      return "TlStoreBoxed<" + gen_store_class_name(tree_type) + ", " + int_to_string(t->constructors[i]->id) + ">";
-    }
-  }
-
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                             const std::vector<tl::var_description> &vars, int storer_type) const {
-  if (storer_type == 0) {
-    return gen_full_store_class_name(tree_type) + "::store(" + field_name + ", s);";
-  }
-
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  assert(!(t->flags & tl::FLAG_DEFAULT_CONSTRUCTOR));  // Not supported yet
-
-  if (name == "#" || name == "Int" || name == "Long" || name == "Int32" || name == "Int53" || name == "Int64" ||
-      name == "Double" || name == "Bool" || name == "String" || name == "SecureString" || name == "Int128" ||
-      name == "Int256" || name == "Int512") {
-    return "s.store_field(\"" + get_pretty_field_name(field_name) + "\", " + field_name + ");";
-  } else if (name == "True") {
-    // currently nothing to do
-    return "";
-  } else if (name == "Bytes" || name == "SecureBytes") {
-    return "s.store_bytes_field(\"" + get_pretty_field_name(field_name) + "\", " + field_name + ");";
-  } else if (name == "Vector") {
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-    return gen_vector_store(field_name, child, vars, storer_type);
-  } else {
-    assert(tree_type->children.empty());
-    return "s.store_object_field(\"" + get_pretty_field_name(field_name) + "\", static_cast<const BaseObject *>(" +
-           field_name + ".get()));";
-  }
-}
-
-std::string TD_TL_writer_cpp::gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                                              std::vector<tl::var_description> &vars, bool flat,
-                                              int storer_type) const {
-  std::string field_name = gen_field_name(a.name);
-  std::string res = storer_type == 1 ? "    " : "  ";
-
-  if (a.type->get_type() == tl::NODE_TYPE_VAR_TYPE) {
-    const tl::tl_tree_var_type *t = static_cast<const tl::tl_tree_var_type *>(a.type);
-    assert(a.flags == tl::FLAG_EXCL);
-
-    assert(a.var_num == -1);
-    assert(a.exist_var_num == -1);
-
-    assert(t->var_num >= 0);
-    assert(!vars[t->var_num].is_stored);
-    vars[t->var_num].is_stored = true;
-    assert(vars[t->var_num].is_type);
-
-    return res + field_name + "->store(s);\n";
-  }
-
-  assert(!(a.flags & tl::FLAG_EXCL));
-
-  if (a.flags & tl::FLAG_OPT_VAR) {
-    assert(false);
-    assert(a.exist_var_num == -1);
-    assert(0 <= a.var_num && a.var_num < static_cast<int>(vars.size()));
-
-    assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-    assert(static_cast<const tl::tl_tree_type *>(a.type)->type->id == tl::ID_VAR_NUM);
-    assert(vars[a.var_num].is_stored);
-    assert(!vars[a.var_num].is_type);
-    return "";
-  }
-
-  if (a.exist_var_num >= 0) {
-    assert(a.exist_var_num < static_cast<int>(vars.size()));
-    assert(vars[a.exist_var_num].is_stored);
-
-    if (a.var_num == -1 && a.type->get_type() == tl::NODE_TYPE_TYPE) {
-      const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(a.type);
-      if (tree_type->type->name == "True") {
-        if (storer_type == 1) {
-          return "    if (" + gen_var_name(vars[a.exist_var_num]) + " & " + int_to_string(1 << a.exist_var_bit) +
-                 ") { s.store_field(\"" + get_pretty_field_name(field_name) + "\", true); }\n";
-        } else {
-          return "";
-        }
-      }
-    }
-
-    res += "if (" + gen_var_name(vars[a.exist_var_num]) + " & " + int_to_string(1 << a.exist_var_bit) + ") { ";
-  }
-
-  if (flat) {
-    //    TODO
-    //    return gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args, std::vector<tl::var_description> &vars, bool flat, int storer_type);
-  }
-
-  if (a.var_num >= 0) {
-    assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-    assert(static_cast<const tl::tl_tree_type *>(a.type)->type->id == tl::ID_VAR_NUM);
-    assert(a.var_num < static_cast<int>(vars.size()));
-    if (!vars[a.var_num].is_stored) {
-      field_name = "(" + gen_var_name(vars[a.var_num]) + " = " + field_name;
-      for (const tl::arg &other_arg : args) {
-        if (other_arg.exist_var_num != a.var_num || other_arg.type->get_type() != tl::NODE_TYPE_TYPE ||
-            (other_arg.flags & tl::FLAG_OPT_VAR) != 0) {
-          continue;
-        }
-        const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(other_arg.type);
-        if (tree_type->type->name == "True") {
-          field_name += " | (" + gen_field_name(other_arg.name) + " << " + int_to_string(other_arg.exist_var_bit) + ")";
-        }
-      }
-      field_name += ")";
-      vars[a.var_num].is_stored = true;
-    } else {
-      assert(false);  // need to check value of stored var
-      field_name = gen_var_name(vars[a.var_num]);
-    }
-  }
-
-  assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-  const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(a.type);
-  res += gen_type_store(field_name, tree_type, vars, storer_type);
-  if (a.exist_var_num >= 0) {
-    res += " }";
-  }
-  res += "\n";
-  return res;
-}
-
-std::string TD_TL_writer_cpp::gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_class_begin(const std::string &class_name, const std::string &base_class_name,
-                                              bool is_proxy, const tl::tl_tree *result) const {
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_class_end() const {
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_class_alias(const std::string &class_name, const std::string &alias_name) const {
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const {
-  if (is_proxy) {
-    return "";
-  }
-  return "\nconst std::int32_t " + class_name + "::ID;\n";
-}
-
-std::string TD_TL_writer_cpp::gen_function_result_type(const tl::tl_tree *result) const {
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                                       const std::string &parent_class_name, int arity, int field_count,
-                                                       std::vector<tl::var_description> &vars, int parser_type) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    assert(!vars[i].is_stored);
-  }
-
-  std::string fetched_type = "object_ptr<" + class_name + "> ";
-  std::string returned_type = "object_ptr<" + parent_class_name + "> ";
-  assert(arity == 0);
-
-  if (parser_type == 0) {
-    std::string result = "\n" + returned_type + class_name + "::fetch(" + parser_name +
-                         " &p) {\n"
-                         "  return make_tl_object<" +
-                         class_name + ">(";
-    if (field_count == 0) {
-      result += ");\n";
-    } else {
-      result +=
-          "p);\n"
-          "}\n\n" +
-          class_name + "::" + class_name + "(" + parser_name + " &p)\n";
-    }
-    return result;
-  }
-
-  return "\n" + returned_type + class_name + "::fetch(" + parser_name +
-         " &p) {\n"
-         "#define FAIL(error) p.set_error(error); return nullptr;\n" +
-         (parser_type == -1 ? "" : "  " + fetched_type + "res = make_tl_object<" + class_name + ">();\n");
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_function_end(bool has_parent, int field_count,
-                                                     const std::vector<tl::var_description> &vars,
-                                                     int parser_type) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    assert(vars[i].is_stored);
-  }
-
-  if (parser_type == 0) {
-    if (field_count == 0) {
-      return "}\n";
-    }
-    return "{}\n";
-  }
-
-  if (parser_type == -1) {
-    return "#undef FAIL\n"
-           "}\n";
-  }
-
-  return "  if (p.get_error()) { FAIL(\"\"); }\n"
-         "  return " +
-         std::string(has_parent ? "std::move(res)" : "res") +
-         ";\n"
-         "#undef FAIL\n"
-         "}\n";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_function_result_begin(const std::string &parser_name,
-                                                              const std::string &class_name,
-                                                              const tl::tl_tree *result) const {
-  return "\n" + class_name + "::ReturnType " + class_name + "::fetch_result(" + parser_name +
-         " &p) {\n"
-         "#define FAIL(error) p.set_error(error); return ReturnType()\n"
-         "  return ";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_function_result_end() const {
-  return ";\n"
-         "#undef FAIL\n"
-         "}\n";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_function_result_any_begin(const std::string &parser_name,
-                                                                  const std::string &class_name, bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_function_result_any_end(bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_cpp::gen_store_function_begin(const std::string &storer_name, const std::string &class_name,
-                                                       int arity, std::vector<tl::var_description> &vars,
-                                                       int storer_type) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    vars[i].is_stored = false;
-  }
-
-  if (storer_type == -1) {
-    return "";
-  }
-
-  assert(arity == 0);
-  return "\n"
-         "void " +
-         class_name + "::store(" + storer_name + " &s" +
-         std::string(storer_type <= 0 ? "" : ", const char *field_name") + ") const {\n" +
-         (storer_type <= 0 ? "  (void)sizeof(s);\n"
-                           : "  if (!LOG_IS_STRIPPED(ERROR)) {\n"
-                             "    s.store_class_begin(field_name, \"" +
-                                 get_pretty_class_name(class_name) + "\");\n");
-}
-
-std::string TD_TL_writer_cpp::gen_store_function_end(const std::vector<tl::var_description> &vars,
-                                                     int storer_type) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    assert(vars[i].is_stored);
-  }
-
-  if (storer_type == -1) {
-    return "";
-  }
-
-  return (storer_type <= 0 ? std::string()
-                           : "    s.store_class_end();\n"
-                             "  }\n") +
-         "}\n";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_switch_begin() const {
-  return "  int constructor = p.fetch_int();\n"
-         "  switch (constructor) {\n";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const {
-  assert(arity == 0);
-  return "    case " + gen_class_name(t->name) +
-         "::ID:\n"
-         "      return " +
-         gen_class_name(t->name) + "::fetch(p);\n";
-}
-
-std::string TD_TL_writer_cpp::gen_fetch_switch_end() const {
-  return "    default:\n"
-         "      FAIL(PSTRING() << \"Unknown constructor found \" << format::as_hex(constructor));\n"
-         "  }\n";
-}
-
-std::string TD_TL_writer_cpp::gen_constructor_begin(int field_count, const std::string &class_name,
-                                                    bool is_default) const {
-  return "\n" + class_name + "::" + class_name + "(";
-}
-
-std::string TD_TL_writer_cpp::gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
-                                                         bool is_default) const {
-  std::string field_type = gen_field_type(a);
-  if (field_type.empty()) {
-    return "";
-  }
-  std::string move_begin;
-  std::string move_end;
-  if ((field_type == "bytes" || field_type == "secure_bytes" || field_type.compare(0, 5, "array") == 0 ||
-       field_type.compare(0, 10, "object_ptr") == 0) &&
-      !is_default) {
-    move_begin = "std::move(";
-    move_end = ")";
-  }
-
-  return (field_num == 0 ? ")\n  : " : "  , ") + gen_field_name(a.name) + "(" + move_begin +
-         (is_default ? "" : gen_field_name(a.name)) + move_end + ")\n";
-}
-
-std::string TD_TL_writer_cpp::gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const {
-  if (field_count == 0) {
-    return ") {\n"
-           "}\n";
-  }
-  return "{}\n";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_cpp.h b/third-party/td/td/td/generate/tl_writer_cpp.h
deleted file mode 100644
index 35ace0cbd6..0000000000
--- a/third-party/td/td/td/generate/tl_writer_cpp.h
+++ /dev/null
@@ -1,107 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "tl_writer_td.h"
-
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-
-class TD_TL_writer_cpp : public TD_TL_writer {
-  std::string gen_constructor_id_store_raw(const std::string &id) const;
-
-  std::string gen_fetch_class_name(const tl::tl_tree_type *tree_type) const;
-
-  std::string gen_full_fetch_class_name(const tl::tl_tree_type *tree_type) const;
-
-  std::string gen_store_class_name(const tl::tl_tree_type *tree_type) const;
-
-  std::string gen_full_store_class_name(const tl::tl_tree_type *tree_type) const;
-
-  std::vector<std::string> ext_include;
-
- protected:
-  std::string gen_vector_store(const std::string &field_name, const tl::tl_tree_type *t,
-                               const std::vector<tl::var_description> &vars, int storer_type) const;
-
-  virtual std::string get_pretty_field_name(std::string field_name) const;
-
-  virtual std::string get_pretty_class_name(std::string class_name) const;
-
- public:
-  TD_TL_writer_cpp(const std::string &tl_name, const std::string &string_type, const std::string &bytes_type,
-                   const std::vector<std::string> &ext_include)
-      : TD_TL_writer(tl_name, string_type, bytes_type), ext_include(ext_include) {
-  }
-
-  std::string gen_output_begin(const std::string &additional_imports) const override;
-  std::string gen_output_begin_once() const override;
-  std::string gen_output_end() const override;
-
-  std::string gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const override;
-
-  std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                              const tl::tl_tree *result) const override;
-  std::string gen_class_end() const override;
-
-  std::string gen_class_alias(const std::string &class_name, const std::string &alias_name) const override;
-
-  std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                   const std::string &field_name) const override;
-
-  std::string gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                       std::vector<tl::var_description> &vars) const override;
-  std::string gen_function_vars(const tl::tl_combinator *t, std::vector<tl::var_description> &vars) const override;
-  std::string gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                      bool check_negative) const override;
-  std::string gen_constructor_id_store(std::int32_t id, int storer_type) const override;
-
-  std::string gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars, bool flat,
-                              int parser_type) const override;
-  std::string gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                              std::vector<tl::var_description> &vars, bool flat, int storer_type) const override;
-  std::string gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int parser_type) const override;
-  std::string gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int storer_type) const override;
-  std::string gen_var_type_fetch(const tl::arg &a) const override;
-
-  std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const override;
-
-  std::string gen_function_result_type(const tl::tl_tree *result) const override;
-
-  std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                       const std::string &parent_class_name, int arity, int field_count,
-                                       std::vector<tl::var_description> &vars, int parser_type) const override;
-  std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<tl::var_description> &vars,
-                                     int parser_type) const override;
-
-  std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
-                                              const tl::tl_tree *result) const override;
-  std::string gen_fetch_function_result_end() const override;
-  std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
-                                                  bool is_proxy) const override;
-  std::string gen_fetch_function_result_any_end(bool is_proxy) const override;
-
-  std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
-                                       std::vector<tl::var_description> &vars, int storer_type) const override;
-  std::string gen_store_function_end(const std::vector<tl::var_description> &vars, int storer_type) const override;
-
-  std::string gen_fetch_switch_begin() const override;
-  std::string gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const override;
-  std::string gen_fetch_switch_end() const override;
-
-  std::string gen_constructor_begin(int field_count, const std::string &class_name, bool is_default) const override;
-  std::string gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
-                                         bool is_default) const override;
-  std::string gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const override;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_dotnet.h b/third-party/td/td/td/generate/tl_writer_dotnet.h
deleted file mode 100644
index c12911b4d0..0000000000
--- a/third-party/td/td/td/generate/tl_writer_dotnet.h
+++ /dev/null
@@ -1,582 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_writer.h"
-
-#include <cassert>
-#include <cstdint>
-#include <sstream>
-#include <string>
-#include <vector>
-
-namespace td {
-namespace tl {
-
-class TlWriterDotNet final : public TL_writer {
-  bool is_header_;
-  std::string prefix_;
-
- public:
-  TlWriterDotNet(const std::string &name, bool is_header, const std::string &prefix)
-      : TL_writer(name), is_header_(is_header), prefix_(prefix) {
-  }
-
-  int get_max_arity() const final {
-    return 0;
-  }
-
-  bool is_built_in_simple_type(const std::string &name) const final {
-    return name == "Bool" || name == "Int32" || name == "Int53" || name == "Int64" || name == "Double" ||
-           name == "String" || name == "Bytes";
-  }
-  bool is_built_in_complex_type(const std::string &name) const final {
-    return name == "Vector";
-  }
-  bool is_type_bare(const tl_type *t) const final {
-    return t->simple_constructors <= 1 || (is_built_in_simple_type(t->name) && t->name != "Bool") ||
-           is_built_in_complex_type(t->name);
-  }
-
-  std::vector<std::string> get_parsers() const final {
-    return {"FromUnmanaged"};
-  }
-  int get_parser_type(const tl_combinator *t, const std::string &name) const final {
-    return 0;
-  }
-  Mode get_parser_mode(int type) const final {
-    return All;  // Server;
-  }
-  std::vector<std::string> get_storers() const final {
-    return {"ToUnmanaged", "ToString"};
-  }
-  std::vector<std::string> get_additional_functions() const final {
-    return {"ToUnmanaged", "FromUnmanaged"};
-  }
-  int get_storer_type(const tl_combinator *t, const std::string &name) const final {
-    return name == "ToString";
-  }
-  Mode get_storer_mode(int type) const final {
-    return type <= 1 ? All : Server;
-  }
-
-  std::string gen_base_tl_class_name() const final {
-    return "BaseObject";
-  }
-  std::string gen_base_type_class_name(int arity) const final {
-    assert(arity == 0);
-    return "Object";
-  }
-  std::string gen_base_function_class_name() const final {
-    return "Function";
-  }
-
-  static std::string to_camelCase(const std::string &name) {
-    return to_cCamelCase(name, false);
-  }
-  static std::string to_CamelCase(const std::string &name) {
-    return to_cCamelCase(name, true);
-  }
-  static std::string to_cCamelCase(const std::string &name, bool flag) {
-    bool next_to_upper = flag;
-    std::string result;
-    for (std::size_t i = 0; i < name.size(); i++) {
-      if (!is_alnum(name[i])) {
-        next_to_upper = true;
-        continue;
-      }
-      if (next_to_upper) {
-        result += to_upper(name[i]);
-        next_to_upper = false;
-      } else {
-        result += name[i];
-      }
-    }
-    return result;
-  }
-
-  std::string gen_native_field_name(std::string name) const {
-    for (std::size_t i = 0; i < name.size(); i++) {
-      if (!is_alnum(name[i])) {
-        name[i] = '_';
-      }
-    }
-    assert(name.size() > 0);
-    assert(name[name.size() - 1] != '_');
-    return name + "_";
-  }
-
-  std::string gen_native_class_name(std::string name) const {
-    if (name == "Object") {
-      assert(0);
-    }
-    if (name == "#") {
-      return "int32_t";
-    }
-    for (std::size_t i = 0; i < name.size(); i++) {
-      if (!is_alnum(name[i])) {
-        name[i] = '_';
-      }
-    }
-    return name;
-  }
-
-  std::string gen_class_name(std::string name) const final {
-    if (name == "Object" || name == "#") {
-      assert(0);
-    }
-    return to_CamelCase(name);
-  }
-  std::string gen_field_name(std::string name) const final {
-    assert(name.size() > 0);
-    assert(is_alnum(name.back()));
-    return to_CamelCase(name);
-  }
-
-  std::string gen_type_name(const tl_tree_type *tree_type) const final {
-    const tl_type *t = tree_type->type;
-    const std::string &name = t->name;
-
-    if (name == "#") {
-      assert(0);
-    }
-    if (name == "Bool") {
-      return "bool";
-    }
-    if (name == "Int32") {
-      return "int32";
-    }
-    if (name == "Int53" || name == "Int64") {
-      return "int64";
-    }
-    if (name == "Double") {
-      return "float64";
-    }
-    if (name == "String") {
-      return "String^";
-    }
-    if (name == "Bytes") {
-      return "Array<BYTE>^";
-    }
-
-    if (name == "Vector") {
-      assert(t->arity == 1);
-      assert(tree_type->children.size() == 1);
-      assert(tree_type->children[0]->get_type() == NODE_TYPE_TYPE);
-      const tl_tree_type *child = static_cast<const tl_tree_type *>(tree_type->children[0]);
-
-      return "Array<" + gen_type_name(child) + ">^";
-    }
-
-    assert(!is_built_in_simple_type(name) && !is_built_in_complex_type(name));
-
-    for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-      assert(tree_type->children[i]->get_type() == NODE_TYPE_NAT_CONST);
-    }
-
-    return gen_main_class_name(t) + "^";
-  }
-
-  std::string gen_output_begin(const std::string &additional_imports) const final {
-    return prefix_ + "#include \"td/tl/tl_dotnet_object.h\"\n\n" + additional_imports +
-           "namespace Telegram {\n"
-           "namespace Td {\n"
-           "namespace Api {\n";
-  }
-
-  std::string gen_output_begin_once() const final {
-    return std::string();
-  }
-
-  std::string gen_output_end() const final {
-    return "}\n"
-           "}\n"
-           "}\n";
-  }
-
-  std::string gen_import_declaration(const std::string &name, bool is_system) const final {
-    if (is_system) {
-      return "#include <" + name + ">\n";
-    } else {
-      return "#include \"" + name + "\"\n";
-    }
-  }
-
-  std::string gen_package_suffix() const final {
-    return ".h";
-  }
-
-  std::string gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const final {
-    if (!is_header_) {
-      return "";
-    }
-    std::stringstream ss;
-    ss << (is_proxy ? "interface" : "ref") << " class " << class_name << ";\n";
-    return ss.str();
-  }
-
-  std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                              const tl::tl_tree *result) const final {
-    if (!is_header_) {
-      return "";
-    }
-
-    std::stringstream ss;
-    ss << "\npublic " << (is_proxy ? "interface" : "ref") << " class " << class_name << (is_proxy ? "" : " sealed")
-       << (class_name == gen_base_tl_class_name() ? "" : " : " + base_class_name) << " {\n"
-       << " public:\n";
-    return ss.str();
-  }
-  std::string gen_class_end() const final {
-    return "";
-  }
-
-  std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                   const std::string &field_name) const final {
-    if (!is_header_) {
-      return "";
-    }
-    auto fixed_field_name = field_name;
-    if (field_name == class_name) {
-      fixed_field_name += "Value";
-    }
-    auto is_web_page_stickers =
-        (class_name == "WebPage" && field_name == "Stickers" && type_name == "Array<Sticker^>^");
-    if (type_name == field_name + "^" || (type_name == "Message^" && field_name == "ReplyToMessage") ||
-        is_web_page_stickers) {
-      auto fixed_type_name =
-          is_web_page_stickers ? "Array<::Telegram::Td::Api::Sticker^>^" : "::Telegram::Td::Api::" + type_name;
-      std::stringstream ss;
-      ss << "private:\n";
-      ss << "  " << fixed_type_name << " " << fixed_field_name << "PrivateField;\n";
-      ss << "public:\n";
-      ss << "  property " << fixed_type_name << " " << fixed_field_name << " {\n";
-      ss << "    " << fixed_type_name << " get() {\n";
-      ss << "      return " << fixed_field_name << "PrivateField;\n";
-      ss << "    }\n";
-      ss << "    void set(" << fixed_type_name << " newValue) {\n";
-      ss << "      " << fixed_field_name << "PrivateField = newValue;\n";
-      ss << "    }\n";
-      ss << "  }\n";
-      return ss.str();
-    }
-    return "  property " + type_name + " " + fixed_field_name + ";\n";
-  }
-
-  std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
-                                       std::vector<var_description> &vars, int storer_type) const final {
-    if (storer_type < 0) {
-      return "";
-    }
-    std::stringstream ss;
-    ss << "\n";
-    if (storer_type) {
-      ss << (is_header_ ? "  virtual " : "") << "String^ " << (is_header_ ? "" : gen_class_name(class_name) + "::")
-         << "ToString()" << (is_header_ ? " override;" : " {\n  return ::Telegram::Td::Api::ToString(this);\n}")
-         << "\n";
-    } else {
-      ss << (is_header_ ? "  virtual " : "") << "NativeObject^ "
-         << (is_header_ ? "" : gen_class_name(class_name) + "::") << "ToUnmanaged()";
-      if (is_header_) {
-        ss << ";\n";
-      } else {
-        ss << " {\n  return REF_NEW NativeObject(::Telegram::Td::Api::ToUnmanaged(this).release());\n}\n";
-      }
-    }
-    return ss.str();
-  }
-  std::string gen_store_function_end(const std::vector<var_description> &vars, int storer_type) const final {
-    return "";
-  }
-
-  std::string gen_constructor_begin(int field_count, const std::string &class_name, bool is_default) const final {
-    std::stringstream ss;
-    ss << "\n";
-    ss << (is_header_ ? "  " : gen_class_name(class_name) + "::") << gen_class_name(class_name) << "(";
-    return ss.str();
-  }
-  std::string gen_constructor_parameter(int field_num, const std::string &class_name, const arg &a,
-                                        bool is_default) const final {
-    if (is_default) {
-      return "";
-    }
-    std::stringstream ss;
-    ss << (field_num == 0 ? "" : ", ");
-    auto field_type = gen_field_type(a);
-    auto pos = 0;
-    while (field_type.substr(pos, 6) == "Array<") {
-      pos += 6;
-    }
-    if (field_type.substr(pos, 4) != "BYTE" && field_type.substr(pos, 6) != "String" &&
-        to_upper(field_type[pos]) == field_type[pos]) {
-      field_type = field_type.substr(0, pos) + "::Telegram::Td::Api::" + field_type.substr(pos);
-    }
-    ss << field_type << " " << to_camelCase(a.name);
-    return ss.str();
-  }
-  std::string gen_constructor_field_init(int field_num, const std::string &class_name, const arg &a,
-                                         bool is_default) const final {
-    if (is_default || is_header_) {
-      return "";
-    }
-
-    std::stringstream ss;
-    if (field_num == 0) {
-      ss << ") {\n";
-    }
-    auto field_name = gen_field_name(a.name);
-    if (field_name == class_name) {
-      field_name += "Value";
-    }
-    ss << "  " << field_name << " = " << to_camelCase(a.name) << ";\n";
-
-    return ss.str();
-  }
-  std::string gen_constructor_end(const tl_combinator *t, int field_count, bool is_default) const final {
-    if (is_header_) {
-      return ");\n";
-    }
-    std::stringstream ss;
-    if (field_count == 0) {
-      ss << ") {\n";
-    }
-    ss << "}\n";
-    return ss.str();
-  }
-  std::string gen_additional_function(const std::string &function_name, const tl_combinator *t,
-                                      bool is_function) const final {
-    std::stringstream ss;
-    if (is_header_ && function_name == "ToUnmanaged") {
-      ss << "};\n";
-    }
-    ss << "\n";
-    if (function_name == "ToUnmanaged") {
-      gen_to_unmanaged(ss, t);
-    } else {
-      gen_from_unmanaged(ss, t);
-    }
-    return ss.str();
-  }
-  void gen_to_unmanaged(std::stringstream &ss, const tl_combinator *t) const {
-    auto native_class_name = gen_native_class_name(t->name);
-    auto class_name = gen_class_name(t->name);
-    ss << "td::td_api::object_ptr<td::td_api::" << native_class_name << "> ToUnmanaged(" << class_name << "^ from)";
-    if (is_header_) {
-      ss << ";\n";
-      return;
-    }
-    ss << " {\n"
-       << "  if (!from) {\n"
-       << "    return nullptr;\n"
-       << "  }\n"
-       << "  return td::td_api::make_object<td::td_api::" << native_class_name << ">(";
-    bool is_first = true;
-    for (auto &it : t->args) {
-      if (is_first) {
-        is_first = false;
-      } else {
-        ss << ", ";
-      }
-      auto field_name = gen_field_name(it.name);
-      if (field_name == class_name) {
-        field_name += "Value";
-      }
-      ss << "ToUnmanaged(from->" << field_name << ")";
-    }
-    ss << ");\n}\n";
-  }
-
-  void gen_from_unmanaged(std::stringstream &ss, const tl_combinator *t) const {
-    auto native_class_name = gen_native_class_name(t->name);
-    auto class_name = gen_class_name(t->name);
-    ss << class_name << "^ FromUnmanaged(td::td_api::" << native_class_name << " &from)";
-    if (is_header_) {
-      ss << ";\n";
-      return;
-    }
-    ss << " {\n"
-       << "  return REF_NEW " << class_name << "(";
-    bool is_first = true;
-    for (auto &it : t->args) {
-      if (is_first) {
-        is_first = false;
-      } else {
-        ss << ", ";
-      }
-      bool need_bytes = gen_field_type(it) == "Array<BYTE>^" || gen_field_type(it) == "Array<Array<BYTE>^>^";
-      ss << (need_bytes ? "Bytes" : "") << "FromUnmanaged(from." << gen_native_field_name(it.name) << ")";
-    }
-    ss << ");\n}\n";
-  }
-
-  std::string gen_array_type_name(const tl_tree_array *arr, const std::string &field_name) const final {
-    assert(0);
-    return std::string();
-  }
-  std::string gen_var_type_name() const final {
-    assert(0);
-    return std::string();
-  }
-
-  std::string gen_int_const(const tl_tree *tree_c, const std::vector<var_description> &vars) const final {
-    assert(0);
-    return std::string();
-  }
-
-  std::string gen_var_name(const var_description &desc) const final {
-    assert(0);
-    return "";
-  }
-  std::string gen_parameter_name(int index) const final {
-    assert(0);
-    return "";
-  }
-
-  std::string gen_class_alias(const std::string &class_name, const std::string &alias_name) const final {
-    return "";
-  }
-
-  std::string gen_vars(const tl_combinator *t, const tl_tree_type *result_type,
-                       std::vector<var_description> &vars) const final {
-    assert(vars.empty());
-    return "";
-  }
-  std::string gen_function_vars(const tl_combinator *t, std::vector<var_description> &vars) const final {
-    assert(vars.empty());
-    return "";
-  }
-  std::string gen_uni(const tl_tree_type *result_type, std::vector<var_description> &vars,
-                      bool check_negative) const final {
-    assert(result_type->children.empty());
-    return "";
-  }
-  std::string gen_constructor_id_store(std::int32_t id, int storer_type) const final {
-    return "";
-  }
-  std::string gen_field_fetch(int field_num, const arg &a, std::vector<var_description> &vars, bool flat,
-                              int parser_type) const final {
-    return "";
-    // std::stringstream ss;
-    // ss << gen_field_name(a.name) << " = from_unmanaged(from->" <<
-    // gen_native_field_name(a.name) << ");\n"; return ss.str();
-  }
-  std::string gen_field_store(const arg &a, const std::vector<tl::arg> &args, std::vector<var_description> &vars,
-                              bool flat, int storer_type) const final {
-    return "";
-    // std::stringstream ss;
-    // ss << "to_unmanaged(" << gen_field_name(a.name) << ")";
-    // return ss.str();
-  }
-  std::string gen_type_fetch(const std::string &field_name, const tl_tree_type *tree_type,
-                             const std::vector<var_description> &vars, int parser_type) const final {
-    assert(vars.empty());
-    return "";
-  }
-
-  std::string gen_type_store(const std::string &field_name, const tl_tree_type *tree_type,
-                             const std::vector<var_description> &vars, int storer_type) const final {
-    return "";
-  }
-  std::string gen_var_type_fetch(const arg &a) const final {
-    assert(0);
-    return "";
-  }
-
-  std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const final {
-    return "";
-  }
-
-  std::string gen_function_result_type(const tl_tree *result) const final {
-    return "";
-  }
-
-  std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                       const std::string &parent_class_name, int arity, int field_count,
-                                       std::vector<var_description> &vars, int parser_type) const final {
-    return "";
-  }
-  std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<var_description> &vars,
-                                     int parser_type) const final {
-    return "";
-  }
-
-  std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
-                                              const tl_tree *result) const final {
-    return "";
-  }
-  std::string gen_fetch_function_result_end() const final {
-    return "";
-  }
-  std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
-                                                  bool is_proxy) const final {
-    return "";
-  }
-  std::string gen_fetch_function_result_any_end(bool is_proxy) const final {
-    return "";
-  }
-
-  std::string gen_fetch_switch_begin() const final {
-    return "";
-  }
-  std::string gen_fetch_switch_case(const tl_combinator *t, int arity) const final {
-    return "";
-  }
-  std::string gen_fetch_switch_end() const final {
-    return "";
-  }
-
-  std::string gen_additional_proxy_function_begin(const std::string &function_name, const tl_type *type,
-                                                  const std::string &name, int arity, bool is_function) const final {
-    std::stringstream ss;
-    if (is_header_ && function_name == "ToUnmanaged") {
-      ss << "};\n";
-    }
-    if (type == nullptr) {
-      return ss.str();
-    }
-    auto native_class_name = gen_native_class_name(type->name);
-    auto class_name = gen_class_name(type->name);
-    if (function_name == "ToUnmanaged") {
-      ss << "td::td_api::object_ptr<td::td_api::" << native_class_name << "> ToUnmanaged(" << class_name << "^ from)";
-      if (is_header_) {
-        ss << ";\n";
-        return ss.str();
-      }
-      ss << " {\n"
-         << "  if (!from) {\n"
-         << "    return nullptr;\n"
-         << "  }\n"
-         << "  return td::td_api::move_object_as<td::td_api::" << native_class_name
-         << ">(from->ToUnmanaged()->get_object_ptr());\n}\n";
-    } else {
-      ss << class_name << "^ FromUnmanaged(td::td_api::" << native_class_name << " &from)";
-      if (is_header_) {
-        ss << ";\n";
-        return ss.str();
-      }
-      ss << " {\n";
-      ss << "  return DoFromUnmanaged<" << class_name << "^>(from);\n";
-      ss << "}\n";
-    }
-    return ss.str();
-  }
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl_type *type,
-                                                 const std::string &class_name, int arity) const final {
-    return "";
-  }
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl_type *type,
-                                                 const tl_combinator *t, int arity, bool is_function) const final {
-    return "";
-  }
-  std::string gen_additional_proxy_function_end(const std::string &function_name, const tl_type *type,
-                                                bool is_function) const final {
-    return "";
-  }
-};
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_h.cpp b/third-party/td/td/td/generate/tl_writer_h.cpp
deleted file mode 100644
index 3a6f8e98f7..0000000000
--- a/third-party/td/td/td/generate/tl_writer_h.cpp
+++ /dev/null
@@ -1,420 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_h.h"
-
-#include <cassert>
-#include <utility>
-
-namespace td {
-
-std::string TD_TL_writer_h::forward_declaration(std::string type) {
-  std::string prefix;
-  std::string suffix;
-  do {
-    std::size_t pos = type.find("::");
-    if (pos == std::string::npos) {
-      return prefix + "class " + type + ";\n" + suffix;
-    }
-    std::string namespace_name = type.substr(0, pos);
-    type = type.substr(pos + 2);
-    prefix += "namespace " + namespace_name + " {\n";
-    suffix += "}  // namespace " + namespace_name + "\n";
-  } while (true);
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_output_begin(const std::string &additional_imports) const {
-  if (!additional_imports.empty()) {
-    return "#pragma once\n\n" + additional_imports +
-           "namespace td {\n"
-           "namespace " +
-           tl_name + " {\n\n";
-  }
-
-  std::string ext_include_str;
-  for (auto &it : ext_include) {
-    ext_include_str += "#include " + it + "\n";
-  }
-  if (!ext_include_str.empty()) {
-    ext_include_str += "\n";
-  }
-  std::string ext_forward_declaration;
-  for (auto &storer_name : get_storers()) {
-    ext_forward_declaration += forward_declaration(storer_name);
-  }
-  for (auto &parser_name : get_parsers()) {
-    ext_forward_declaration += forward_declaration(parser_name);
-  }
-  if (!ext_forward_declaration.empty()) {
-    ext_forward_declaration += "\n";
-  }
-  return "#pragma once\n\n"
-         "#include \"td/tl/TlObject.h\"\n\n" +
-         ext_include_str +
-         "#include <cstdint>\n"
-         "#include <utility>\n"
-         "#include <vector>\n\n"
-         "namespace td {\n" +
-         ext_forward_declaration + "namespace " + tl_name + " {\n\n";
-}
-
-std::string TD_TL_writer_h::gen_output_begin_once() const {
-  std::string secure_strings;
-  if (tl_name != "td_api" && tl_name != "telegram_api" && tl_name != "mtproto_api") {
-    secure_strings = "using secure_string = " + string_type +
-                     ";\n\n"
-                     "using secure_bytes = " +
-                     bytes_type + ";\n\n";
-  }
-  return "using int32 = std::int32_t;\n"
-         "using int53 = std::int64_t;\n"
-         "using int64 = std::int64_t;\n\n"
-
-         "using string = " +
-         string_type +
-         ";\n\n"
-
-         "using bytes = " +
-         bytes_type + ";\n\n" + secure_strings +
-
-         "template <class Type>\n"
-         "using array = std::vector<Type>;\n\n"
-
-         "using BaseObject = ::td::TlObject;\n\n"
-
-         "template <class Type>\n"
-         "using object_ptr = ::td::tl_object_ptr<Type>;\n\n"
-         "template <class Type, class... Args>\n"
-         "object_ptr<Type> make_object(Args &&... args) {\n"
-         "  return object_ptr<Type>(new Type(std::forward<Args>(args)...));\n"
-         "}\n\n"
-
-         "template <class ToType, class FromType>\n"
-         "object_ptr<ToType> move_object_as(FromType &&from) {\n"
-         "  return object_ptr<ToType>(static_cast<ToType *>(from.release()));\n"
-         "}\n\n"
-
-         "std::string to_string(const BaseObject &value);\n\n"
-
-         "template <class T>\n"
-         "std::string to_string(const object_ptr<T> &value) {\n"
-         "  if (value == nullptr) {\n"
-         "    return \"null\";\n"
-         "  }\n"
-         "\n"
-         "  return to_string(*value);\n"
-         "}\n\n"
-
-         "template <class T>\n"
-         "std::string to_string(const std::vector<object_ptr<T>> &values) {\n"
-         "  std::string result = \"{\\n\";\n"
-         "  for (const auto &value : values) {\n"
-         "    if (value == nullptr) {\n"
-         "      result += \"null\\n\";\n"
-         "    } else {\n"
-         "      result += to_string(*value);\n"
-         "    }\n"
-         "  }\n"
-         "  result += \"}\\n\";\n"
-         "  return result;\n"
-         "}\n\n";
-}
-
-std::string TD_TL_writer_h::gen_output_end() const {
-  return "}  // namespace " + tl_name +
-         "\n"
-         "}  // namespace td\n";
-}
-
-std::string TD_TL_writer_h::gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                                 const std::string &field_name) const {
-  return "  " + type_name + (type_name.empty() || type_name[type_name.size() - 1] == ' ' ? "" : " ") + field_name +
-         ";\n";
-}
-
-std::string TD_TL_writer_h::gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                                     std::vector<tl::var_description> &vars) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_function_vars(const tl::tl_combinator *t,
-                                              std::vector<tl::var_description> &vars) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    vars[i].index = static_cast<int>(i);
-    vars[i].is_stored = false;
-    vars[i].is_type = false;
-    vars[i].parameter_num = -1;
-    vars[i].function_arg_num = -1;
-  }
-
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    const tl::arg &a = t->args[i];
-
-    int arg_type = a.type->get_type();
-    if (arg_type == tl::NODE_TYPE_VAR_TYPE) {
-      const tl::tl_tree_var_type *var_type = static_cast<const tl::tl_tree_var_type *>(a.type);
-      assert(a.flags & tl::FLAG_EXCL);
-      assert(var_type->var_num >= 0);
-      assert(!vars[var_type->var_num].is_type);
-      vars[var_type->var_num].is_type = true;
-      vars[var_type->var_num].function_arg_num = static_cast<int>(i);
-    }
-  }
-
-  std::string res;
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    if (!vars[i].is_type) {
-      assert(vars[i].parameter_num == -1);
-      assert(vars[i].function_arg_num == -1);
-      assert(!vars[i].is_stored);
-      res += "  mutable " + gen_class_name("#") + " " + gen_var_name(vars[i]) + ";\n";
-    }
-  }
-  return res;
-}
-
-bool TD_TL_writer_h::need_arg_mask(const tl::arg &a, bool can_be_stored) const {
-  if (a.exist_var_num == -1) {
-    return false;
-  }
-
-  if (can_be_stored) {
-    return true;
-  }
-
-  if (a.type->get_type() != tl::NODE_TYPE_TYPE) {
-    return true;
-  }
-  const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(a.type);
-  const std::string &name = tree_type->type->name;
-
-  if (!is_built_in_simple_type(name) || name == "True") {
-    return false;
-  }
-  return true;
-}
-
-std::string TD_TL_writer_h::gen_flags_definitions(const tl::tl_combinator *t, bool can_be_stored) const {
-  std::vector<std::pair<std::string, std::int32_t>> flags;
-
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    const tl::arg &a = t->args[i];
-
-    if (need_arg_mask(a, can_be_stored)) {
-      auto name = a.name;
-      for (auto &c : name) {
-        c = to_upper(c);
-      }
-      flags.emplace_back(name, a.exist_var_bit);
-    }
-  }
-  std::string res;
-  if (!flags.empty()) {
-    res += "  enum Flags : std::int32_t { ";
-    bool first = true;
-    for (auto &p : flags) {
-      if (first) {
-        first = false;
-      } else {
-        res += ", ";
-      }
-      res += p.first + "_MASK = " + int_to_string(1 << p.second);
-    }
-    res += " };\n";
-  }
-  return res;
-}
-
-std::string TD_TL_writer_h::gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                                    bool check_negative) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_constructor_id_store(std::int32_t id, int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars,
-                                            bool flat, int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                                            std::vector<tl::var_description> &vars, bool flat, int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                           const std::vector<tl::var_description> &vars, int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                           const std::vector<tl::var_description> &vars, int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_var_type_fetch(const tl::arg &a) const {
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const {
-  return "class " + class_name + ";\n\n";
-}
-
-std::string TD_TL_writer_h::gen_class_begin(const std::string &class_name, const std::string &base_class_name,
-                                            bool is_proxy, const tl::tl_tree *result) const {
-  if (is_proxy) {
-    return "class " + class_name + ": public " + base_class_name +
-           " {\n"
-           " public:\n";
-  }
-  return "class " + class_name + " final : public " + base_class_name +
-         " {\n"
-         "  std::int32_t get_id() const final {\n"
-         "    return ID;\n"
-         "  }\n\n"
-         " public:\n";
-}
-
-std::string TD_TL_writer_h::gen_class_end() const {
-  return "};\n\n";
-}
-
-std::string TD_TL_writer_h::gen_class_alias(const std::string &class_name, const std::string &alias_name) const {
-  return "";
-  //  return "typedef " + class_name + " " + alias_name + ";\n\n\n";
-}
-
-std::string TD_TL_writer_h::gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const {
-  if (is_proxy) {
-    if (class_name == gen_base_tl_class_name()) {
-      return "\n  virtual std::int32_t get_id() const = 0;\n";
-    }
-
-    return "";
-  }
-
-  return "\n"
-         "  static const std::int32_t ID = " +
-         int_to_string(id) + ";\n";
-}
-
-std::string TD_TL_writer_h::gen_function_result_type(const tl::tl_tree *result) const {
-  assert(result->get_type() == tl::NODE_TYPE_TYPE);
-  const tl::tl_tree_type *result_type = static_cast<const tl::tl_tree_type *>(result);
-  std::string fetched_type = gen_type_name(result_type);
-
-  if (!fetched_type.empty() && fetched_type[fetched_type.size() - 1] == ' ') {
-    fetched_type.pop_back();
-  }
-
-  return "\n"
-         "  using ReturnType = " +
-         fetched_type + ";\n";
-}
-
-std::string TD_TL_writer_h::gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                                     const std::string &parent_class_name, int arity, int field_count,
-                                                     std::vector<tl::var_description> &vars, int parser_type) const {
-  std::string returned_type = "object_ptr<" + parent_class_name + "> ";
-
-  if (parser_type == 0) {
-    std::string result =
-        "\n"
-        "  static " +
-        returned_type + "fetch(" + parser_name + " &p);\n";
-    if (field_count != 0) {
-      result +=
-          "\n"
-          "  explicit " +
-          class_name + "(" + parser_name + " &p);\n";
-    }
-    return result;
-  }
-
-  assert(arity == 0);
-  return "\n"
-         "  static " +
-         returned_type + "fetch(" + parser_name + " &p);\n";
-}
-
-std::string TD_TL_writer_h::gen_fetch_function_end(bool has_parent, int field_count,
-                                                   const std::vector<tl::var_description> &vars,
-                                                   int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_fetch_function_result_begin(const std::string &parser_name,
-                                                            const std::string &class_name,
-                                                            const tl::tl_tree *result) const {
-  return "\n"
-         "  static ReturnType fetch_result(" +
-         parser_name + " &p);\n";
-}
-
-std::string TD_TL_writer_h::gen_fetch_function_result_end() const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_fetch_function_result_any_begin(const std::string &parser_name,
-                                                                const std::string &class_name, bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_fetch_function_result_any_end(bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_store_function_begin(const std::string &storer_name, const std::string &class_name,
-                                                     int arity, std::vector<tl::var_description> &vars,
-                                                     int storer_type) const {
-  assert(arity == 0);
-  if (storer_type == -1) {
-    return "";
-  }
-  return "\n"
-         "  void store(" +
-         storer_name + " &s" + std::string(storer_type == 0 ? "" : ", const char *field_name") + ") const final;\n";
-}
-
-std::string TD_TL_writer_h::gen_store_function_end(const std::vector<tl::var_description> &vars,
-                                                   int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_fetch_switch_begin() const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_fetch_switch_end() const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_constructor_begin(int field_count, const std::string &class_name,
-                                                  bool is_default) const {
-  return "\n"
-         "  " +
-         std::string(field_count == 1 ? "explicit " : "") + class_name + "(";
-}
-
-std::string TD_TL_writer_h::gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
-                                                       bool is_default) const {
-  return "";
-}
-
-std::string TD_TL_writer_h::gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const {
-  return ");\n";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_h.h b/third-party/td/td/td/generate/tl_writer_h.h
deleted file mode 100644
index e9e39fc377..0000000000
--- a/third-party/td/td/td/generate/tl_writer_h.h
+++ /dev/null
@@ -1,95 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "tl_writer_td.h"
-
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-
-class TD_TL_writer_h : public TD_TL_writer {
- protected:
-  const std::vector<std::string> ext_include;
-
-  static std::string forward_declaration(std::string type);
-
-  bool need_arg_mask(const tl::arg &a, bool can_be_stored) const;
-
- public:
-  TD_TL_writer_h(const std::string &tl_name, const std::string &string_type, const std::string &bytes_type,
-                 const std::vector<std::string> &ext_include)
-      : TD_TL_writer(tl_name, string_type, bytes_type), ext_include(ext_include) {
-  }
-
-  std::string gen_output_begin(const std::string &additional_imports) const override;
-  std::string gen_output_begin_once() const override;
-  std::string gen_output_end() const override;
-
-  std::string gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const override;
-
-  std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                              const tl::tl_tree *result) const override;
-  std::string gen_class_end() const override;
-
-  std::string gen_class_alias(const std::string &class_name, const std::string &alias_name) const override;
-
-  std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                   const std::string &field_name) const override;
-
-  std::string gen_flags_definitions(const tl::tl_combinator *t, bool can_be_stored) const override;
-  std::string gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                       std::vector<tl::var_description> &vars) const override;
-  std::string gen_function_vars(const tl::tl_combinator *t, std::vector<tl::var_description> &vars) const override;
-  std::string gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                      bool check_negative) const override;
-  std::string gen_constructor_id_store(std::int32_t id, int storer_type) const override;
-
-  std::string gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars, bool flat,
-                              int parser_type) const override;
-  std::string gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                              std::vector<tl::var_description> &vars, bool flat, int storer_type) const override;
-  std::string gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int parser_type) const override;
-  std::string gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int storer_type) const override;
-  std::string gen_var_type_fetch(const tl::arg &a) const override;
-
-  std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const override;
-
-  std::string gen_function_result_type(const tl::tl_tree *result) const override;
-
-  std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                       const std::string &parent_class_name, int arity, int field_count,
-                                       std::vector<tl::var_description> &vars, int parser_type) const override;
-  std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<tl::var_description> &vars,
-                                     int parser_type) const override;
-
-  std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
-                                              const tl::tl_tree *result) const override;
-  std::string gen_fetch_function_result_end() const override;
-  std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
-                                                  bool is_proxy) const override;
-  std::string gen_fetch_function_result_any_end(bool is_proxy) const override;
-
-  std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
-                                       std::vector<tl::var_description> &vars, int storer_type) const override;
-  std::string gen_store_function_end(const std::vector<tl::var_description> &vars, int storer_type) const override;
-
-  std::string gen_fetch_switch_begin() const override;
-  std::string gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const override;
-  std::string gen_fetch_switch_end() const override;
-
-  std::string gen_constructor_begin(int field_count, const std::string &class_name, bool is_default) const override;
-  std::string gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
-                                         bool is_default) const override;
-  std::string gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const override;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_hpp.cpp b/third-party/td/td/td/generate/tl_writer_hpp.cpp
deleted file mode 100644
index 28c6da2b7c..0000000000
--- a/third-party/td/td/td/generate/tl_writer_hpp.cpp
+++ /dev/null
@@ -1,274 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_hpp.h"
-
-#include <cassert>
-
-namespace td {
-
-bool TD_TL_writer_hpp::is_documentation_generated() const {
-#ifdef DISABLE_HPP_DOCUMENTATION
-  return false;
-#else
-  return true;
-#endif
-}
-
-int TD_TL_writer_hpp::get_additional_function_type(const std::string &additional_function_name) const {
-  assert(additional_function_name == "downcast_call");
-  return 2;
-}
-
-std::vector<std::string> TD_TL_writer_hpp::get_additional_functions() const {
-  std::vector<std::string> additional_functions;
-  additional_functions.push_back("downcast_call");
-  return additional_functions;
-}
-
-std::string TD_TL_writer_hpp::gen_base_type_class_name(int arity) const {
-  assert(arity == 0);
-  return "Object";
-}
-
-std::string TD_TL_writer_hpp::gen_base_tl_class_name() const {
-  return "BaseObject";
-}
-
-std::string TD_TL_writer_hpp::gen_output_begin(const std::string &additional_imports) const {
-  return "#pragma once\n"
-         "\n"
-#ifndef DISABLE_HPP_DOCUMENTATION
-         "/**\n"
-         " * \\file\n"
-         " * Contains downcast_call methods for calling a function object on downcasted to\n"
-         " * the most derived class TDLib API object.\n"
-         " */\n"
-#endif
-         "#include \"" +
-         tl_name +
-         ".h\"\n"
-         "\n"
-         "namespace td {\n"
-         "namespace " +
-         tl_name + " {\n\n";
-}
-
-std::string TD_TL_writer_hpp::gen_output_begin_once() const {
-  return std::string();
-}
-
-std::string TD_TL_writer_hpp::gen_output_end() const {
-  return "}  // namespace " + tl_name +
-         "\n"
-         "}  // namespace td\n";
-}
-
-std::string TD_TL_writer_hpp::gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                                   const std::string &field_name) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                                       std::vector<tl::var_description> &vars) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_function_vars(const tl::tl_combinator *t,
-                                                std::vector<tl::var_description> &vars) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                                      bool check_negative) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_constructor_id_store(std::int32_t id, int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars,
-                                              bool flat, int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                                              std::vector<tl::var_description> &vars, bool flat,
-                                              int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                             const std::vector<tl::var_description> &vars, int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                             const std::vector<tl::var_description> &vars, int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_var_type_fetch(const tl::arg &a) const {
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_class_begin(const std::string &class_name, const std::string &base_class_name,
-                                              bool is_proxy, const tl::tl_tree *result) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_class_end() const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_class_alias(const std::string &class_name, const std::string &alias_name) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_function_result_type(const tl::tl_tree *result) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                                       const std::string &parent_class_name, int arity, int field_count,
-                                                       std::vector<tl::var_description> &vars, int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_function_end(bool has_parent, int field_count,
-                                                     const std::vector<tl::var_description> &vars,
-                                                     int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_function_result_begin(const std::string &parser_name,
-                                                              const std::string &class_name,
-                                                              const tl::tl_tree *result) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_function_result_end() const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_function_result_any_begin(const std::string &parser_name,
-                                                                  const std::string &class_name, bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_function_result_any_end(bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_store_function_begin(const std::string &storer_name, const std::string &class_name,
-                                                       int arity, std::vector<tl::var_description> &vars,
-                                                       int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_store_function_end(const std::vector<tl::var_description> &vars,
-                                                     int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_switch_begin() const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_fetch_switch_end() const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_additional_function(const std::string &function_name, const tl::tl_combinator *t,
-                                                      bool is_function) const {
-  assert(function_name == "downcast_call");
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_additional_proxy_function_begin(const std::string &function_name,
-                                                                  const tl::tl_type *type,
-                                                                  const std::string &class_name, int arity,
-                                                                  bool is_function) const {
-  assert(function_name == "downcast_call");
-  return
-#ifndef DISABLE_HPP_DOCUMENTATION
-      "/**\n"
-      " * Calls the specified function object with the given object downcasted to its most derived type.\n"
-      " * \\param[in] obj Object to pass as an argument to the function object.\n"
-      " * \\param[in] func Function object to which the object will be passed.\n"
-      " * \\returns Whether function object call has happened. Should always return true for correct parameters.\n"
-      " */\n"
-#endif
-      "template <class T>\n"
-      "bool downcast_call(" +
-      class_name +
-      " &obj, const T &func) {\n"
-      "  switch (obj.get_id()) {\n";
-}
-
-std::string TD_TL_writer_hpp::gen_additional_proxy_function_case(const std::string &function_name,
-                                                                 const tl::tl_type *type, const std::string &class_name,
-                                                                 int arity) const {
-  assert(function_name == "downcast_call");
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_additional_proxy_function_case(const std::string &function_name,
-                                                                 const tl::tl_type *type, const tl::tl_combinator *t,
-                                                                 int arity, bool is_function) const {
-  assert(function_name == "downcast_call");
-  return "    case " + gen_class_name(t->name) +
-         "::ID:\n"
-         "      func(static_cast<" +
-         gen_class_name(t->name) +
-         " &>(obj));\n"
-         "      return true;\n";
-}
-
-std::string TD_TL_writer_hpp::gen_additional_proxy_function_end(const std::string &function_name,
-                                                                const tl::tl_type *type, bool is_function) const {
-  assert(function_name == "downcast_call");
-  return "    default:\n"
-         "      return false;\n"
-         "  }\n"
-         "}\n\n";
-}
-
-std::string TD_TL_writer_hpp::gen_constructor_begin(int field_count, const std::string &class_name,
-                                                    bool is_default) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_constructor_parameter(int field_num, const std::string &class_name, const tl::arg &a,
-                                                        bool is_default) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
-                                                         bool is_default) const {
-  return "";
-}
-
-std::string TD_TL_writer_hpp::gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const {
-  return "";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_hpp.h b/third-party/td/td/td/generate/tl_writer_hpp.h
deleted file mode 100644
index 26165ae1b6..0000000000
--- a/third-party/td/td/td/generate/tl_writer_hpp.h
+++ /dev/null
@@ -1,108 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "tl_writer_td.h"
-
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-
-class TD_TL_writer_hpp final : public TD_TL_writer {
- public:
-  TD_TL_writer_hpp(const std::string &tl_name, const std::string &string_type, const std::string &bytes_type)
-      : TD_TL_writer(tl_name, string_type, bytes_type) {
-  }
-
-  bool is_documentation_generated() const final;
-
-  int get_additional_function_type(const std::string &additional_function_name) const final;
-  std::vector<std::string> get_additional_functions() const final;
-
-  std::string gen_base_type_class_name(int arity) const final;
-  std::string gen_base_tl_class_name() const final;
-
-  std::string gen_output_begin(const std::string &additional_imports) const final;
-  std::string gen_output_begin_once() const final;
-  std::string gen_output_end() const final;
-
-  std::string gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const final;
-
-  std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                              const tl::tl_tree *result) const final;
-  std::string gen_class_end() const final;
-
-  std::string gen_class_alias(const std::string &class_name, const std::string &alias_name) const final;
-
-  std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                   const std::string &field_name) const final;
-
-  std::string gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                       std::vector<tl::var_description> &vars) const final;
-  std::string gen_function_vars(const tl::tl_combinator *t, std::vector<tl::var_description> &vars) const final;
-  std::string gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                      bool check_negative) const final;
-  std::string gen_constructor_id_store(std::int32_t id, int storer_type) const final;
-
-  std::string gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars, bool flat,
-                              int parser_type) const final;
-  std::string gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                              std::vector<tl::var_description> &vars, bool flat, int storer_type) const final;
-  std::string gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int parser_type) const final;
-  std::string gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int storer_type) const final;
-  std::string gen_var_type_fetch(const tl::arg &a) const final;
-
-  std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const final;
-
-  std::string gen_function_result_type(const tl::tl_tree *result) const final;
-
-  std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                       const std::string &parent_class_name, int arity, int field_count,
-                                       std::vector<tl::var_description> &vars, int parser_type) const final;
-  std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<tl::var_description> &vars,
-                                     int parser_type) const final;
-
-  std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
-                                              const tl::tl_tree *result) const final;
-  std::string gen_fetch_function_result_end() const final;
-  std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
-                                                  bool is_proxy) const final;
-  std::string gen_fetch_function_result_any_end(bool is_proxy) const final;
-
-  std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
-                                       std::vector<tl::var_description> &vars, int storer_type) const final;
-  std::string gen_store_function_end(const std::vector<tl::var_description> &vars, int storer_type) const final;
-
-  std::string gen_fetch_switch_begin() const final;
-  std::string gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const final;
-  std::string gen_fetch_switch_end() const final;
-
-  std::string gen_constructor_begin(int field_count, const std::string &class_name, bool is_default) const final;
-  std::string gen_constructor_parameter(int field_num, const std::string &class_name, const tl::arg &a,
-                                        bool is_default) const final;
-  std::string gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
-                                         bool is_default) const final;
-  std::string gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const final;
-
-  std::string gen_additional_function(const std::string &function_name, const tl::tl_combinator *t,
-                                      bool is_function) const final;
-  std::string gen_additional_proxy_function_begin(const std::string &function_name, const tl::tl_type *type,
-                                                  const std::string &class_name, int arity,
-                                                  bool is_function) const final;
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl::tl_type *type,
-                                                 const std::string &class_name, int arity) const final;
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl::tl_type *type,
-                                                 const tl::tl_combinator *t, int arity, bool is_function) const final;
-  std::string gen_additional_proxy_function_end(const std::string &function_name, const tl::tl_type *type,
-                                                bool is_function) const final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_java.cpp b/third-party/td/td/td/generate/tl_writer_java.cpp
deleted file mode 100644
index de997fddfc..0000000000
--- a/third-party/td/td/td/generate/tl_writer_java.cpp
+++ /dev/null
@@ -1,500 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_java.h"
-
-#include <cassert>
-
-namespace td {
-
-const int TD_TL_writer_java::MAX_ARITY;
-
-const std::string TD_TL_writer_java::base_type_class_names[MAX_ARITY + 1] = {"Object"};
-const std::string TD_TL_writer_java::base_tl_class_name = "Object";
-const std::string TD_TL_writer_java::base_function_class_name = "Function";
-
-int TD_TL_writer_java::get_max_arity() const {
-  return MAX_ARITY;
-}
-
-bool TD_TL_writer_java::is_built_in_simple_type(const std::string &name) const {
-  return name == "Bool" || name == "Int32" || name == "Int53" || name == "Int64" || name == "Double" ||
-         name == "String" || name == "Bytes";
-}
-
-bool TD_TL_writer_java::is_built_in_complex_type(const std::string &name) const {
-  return name == "Vector";
-}
-
-bool TD_TL_writer_java::is_type_bare(const tl::tl_type *t) const {
-  return t->simple_constructors == 1 || (is_built_in_simple_type(t->name) && t->name != "Bool") ||
-         is_built_in_complex_type(t->name);
-}
-
-bool TD_TL_writer_java::is_combinator_supported(const tl::tl_combinator *constructor) const {
-  if (!TL_writer::is_combinator_supported(constructor)) {
-    return false;
-  }
-
-  for (std::size_t i = 0; i < constructor->args.size(); i++) {
-    if (constructor->args[i].type->get_type() == tl::NODE_TYPE_VAR_TYPE) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-int TD_TL_writer_java::get_parser_type(const tl::tl_combinator *t, const std::string &parser_name) const {
-  return 0;
-}
-
-int TD_TL_writer_java::get_storer_type(const tl::tl_combinator *t, const std::string &storer_name) const {
-  return 0;
-}
-
-std::vector<std::string> TD_TL_writer_java::get_parsers() const {
-  std::vector<std::string> parsers;
-  parsers.push_back("<inlined>");
-  return parsers;
-}
-
-std::vector<std::string> TD_TL_writer_java::get_storers() const {
-  return std::vector<std::string>();
-}
-
-std::string TD_TL_writer_java::gen_base_tl_class_name() const {
-  return base_tl_class_name;
-}
-
-std::string TD_TL_writer_java::gen_base_type_class_name(int arity) const {
-  assert(arity == 0);
-  return base_type_class_names[arity];
-}
-
-std::string TD_TL_writer_java::gen_base_function_class_name() const {
-  return base_function_class_name;
-}
-
-std::string TD_TL_writer_java::gen_class_name(std::string name) const {
-  if (name == "Object" || name == "#") {
-    assert(false);
-  }
-  bool next_to_upper = true;
-  std::string result;
-  for (std::size_t i = 0; i < name.size(); i++) {
-    if (!is_alnum(name[i])) {
-      next_to_upper = true;
-      continue;
-    }
-    if (next_to_upper) {
-      result += to_upper(name[i]);
-      next_to_upper = false;
-    } else {
-      result += name[i];
-    }
-  }
-  return result;
-}
-
-std::string TD_TL_writer_java::gen_field_name(std::string name) const {
-  assert(name.size() > 0);
-  assert(is_alnum(name.back()));
-
-  bool next_to_upper = false;
-  std::string result;
-  for (std::size_t i = 0; i < name.size(); i++) {
-    if (!is_alnum(name[i])) {
-      next_to_upper = true;
-      continue;
-    }
-    if (next_to_upper) {
-      result += to_upper(name[i]);
-      next_to_upper = false;
-    } else {
-      result += name[i];
-    }
-  }
-  return result;
-}
-
-std::string TD_TL_writer_java::gen_var_name(const tl::var_description &desc) const {
-  assert(false);
-  return std::string();
-}
-
-std::string TD_TL_writer_java::gen_parameter_name(int index) const {
-  assert(false);
-  return std::string();
-}
-
-std::string TD_TL_writer_java::gen_type_name(const tl::tl_tree_type *tree_type) const {
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  if (name == "#") {
-    assert(false);
-  }
-  if (name == "Bool") {
-    return "boolean";
-  }
-  if (name == "Int32") {
-    return "int";
-  }
-  if (name == "Int53" || name == "Int64") {
-    return "long";
-  }
-  if (name == "Double") {
-    return "double";
-  }
-  if (name == "String") {
-    return "String";
-  }
-  if (name == "Bytes") {
-    return "byte[]";
-  }
-
-  if (name == "Vector") {
-    assert(t->arity == 1);
-    assert(tree_type->children.size() == 1);
-    assert(tree_type->children[0]->get_type() == tl::NODE_TYPE_TYPE);
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-
-    return gen_type_name(child) + "[]";
-  }
-
-  assert(!is_built_in_simple_type(name) && !is_built_in_complex_type(name));
-
-  for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-    assert(tree_type->children[i]->get_type() == tl::NODE_TYPE_NAT_CONST);
-  }
-
-  return gen_main_class_name(t);
-}
-
-std::string TD_TL_writer_java::gen_array_type_name(const tl::tl_tree_array *arr, const std::string &field_name) const {
-  assert(false);
-  return std::string();
-}
-
-std::string TD_TL_writer_java::gen_var_type_name() const {
-  return gen_base_function_class_name();
-}
-
-std::string TD_TL_writer_java::gen_int_const(const tl::tl_tree *tree_c,
-                                             const std::vector<tl::var_description> &vars) const {
-  assert(false);
-  return std::string();
-}
-
-std::string TD_TL_writer_java::gen_output_begin(const std::string &additional_imports) const {
-  return "package " + package_name +
-         ";\n\n"
-         "public class " +
-         tl_name + " {\n";
-}
-
-std::string TD_TL_writer_java::gen_output_begin_once() const {
-#define DEFINE_STR_VALUE_IMPL(x) #x
-#define DEFINE_STR_VALUE(x) DEFINE_STR_VALUE_IMPL(x)
-  return "    static {\n"
-         "        try {\n"
-         "            System.loadLibrary(\"tdjni\");\n"
-         "        } catch (UnsatisfiedLinkError e) {\n"
-         "            e.printStackTrace();\n"
-         "        }\n"
-         "    }\n\n"
-         "    private static final String GIT_COMMIT_HASH = \"" DEFINE_STR_VALUE(GIT_COMMIT_HASH)
-         "\";\n\n"
-         "    private " +
-         tl_name +
-         "() {\n"
-         "    }\n\n";
-#undef DEFINE_STR_VALUE
-#undef DEFINE_STR_VALUE_IMPL
-}
-
-std::string TD_TL_writer_java::gen_output_end() const {
-  return "}\n";
-}
-
-std::string TD_TL_writer_java::gen_import_declaration(const std::string &name, bool is_system) const {
-  return "import " + name + ";\n";
-}
-
-std::string TD_TL_writer_java::gen_package_suffix() const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_class_begin(const std::string &class_name, const std::string &base_class_name,
-                                               bool is_proxy, const tl::tl_tree *result_tl) const {
-  std::string full_class_name = "static class " + class_name;
-  if (class_name == "Function") {
-    full_class_name += "<R extends " + gen_base_tl_class_name() + ">";
-  }
-  if (class_name != gen_base_tl_class_name()) {
-    full_class_name += " extends " + base_class_name;
-  }
-  if (result_tl != nullptr && base_class_name == "Function") {
-    assert(result_tl->get_type() == tl::NODE_TYPE_TYPE);
-    const tl::tl_tree_type *result_type = static_cast<const tl::tl_tree_type *>(result_tl);
-    std::string fetched_type = gen_type_name(result_type);
-
-    if (!fetched_type.empty() && fetched_type[fetched_type.size() - 1] == ' ') {
-      fetched_type.pop_back();
-    }
-
-    full_class_name += "<" + fetched_type + ">";
-  }
-  std::string result = "    public " + std::string(is_proxy ? "abstract " : "") + full_class_name + " {\n";
-  if (is_proxy) {
-    result += "        public " + class_name + "() {\n        }\n";
-  }
-  if (class_name == gen_base_tl_class_name() || class_name == gen_base_function_class_name()) {
-    result += "\n        public native String toString();\n";
-  }
-
-  return result;
-}
-
-std::string TD_TL_writer_java::gen_class_end() const {
-  return "    }\n\n";
-}
-
-std::string TD_TL_writer_java::gen_class_alias(const std::string &class_name, const std::string &alias_name) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                                    const std::string &field_name) const {
-  return "        public " + type_name + " " + field_name + ";\n";
-}
-
-std::string TD_TL_writer_java::gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                                        std::vector<tl::var_description> &vars) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    vars[i].index = static_cast<int>(i);
-    vars[i].is_stored = false;
-    vars[i].is_type = false;
-    vars[i].parameter_num = -1;
-    vars[i].function_arg_num = -1;
-  }
-
-  if (result_type != nullptr) {
-    assert(result_type->children.empty());
-  }
-
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    assert(t->args[i].type->get_type() != tl::NODE_TYPE_VAR_TYPE);
-  }
-
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    assert(vars[i].is_type);
-  }
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_function_vars(const tl::tl_combinator *t,
-                                                 std::vector<tl::var_description> &vars) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    vars[i].index = static_cast<int>(i);
-    vars[i].is_stored = false;
-    vars[i].is_type = false;
-    vars[i].parameter_num = -1;
-    vars[i].function_arg_num = -1;
-  }
-
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    assert(t->args[i].type->get_type() != tl::NODE_TYPE_VAR_TYPE);
-  }
-
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    assert(vars[i].is_type);
-  }
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                                       bool check_negative) const {
-  assert(result_type->children.empty());
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_constructor_id_store(std::int32_t id, int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars,
-                                               bool flat, int parser_type) const {
-  assert(parser_type >= 0);
-
-  assert(a.exist_var_num == -1);
-  assert(a.type->get_type() != tl::NODE_TYPE_VAR_TYPE);
-
-  assert(!(a.flags & tl::FLAG_EXCL));
-  assert(!(a.flags & tl::FLAG_OPT_VAR));
-
-  if (flat) {
-    //    TODO
-    //    return gen_field_fetch(const tl::arg &a, std::vector<tl::var_description> &vars, int num, bool flat);
-  }
-
-  assert(a.var_num == -1);
-  assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                                               std::vector<tl::var_description> &vars, bool flat,
-                                               int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                              const std::vector<tl::var_description> &vars, int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                              const std::vector<tl::var_description> &vars, int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_var_type_fetch(const tl::arg &a) const {
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const {
-  if (is_proxy) {
-    return class_name == gen_base_tl_class_name() ? "\n        public abstract int getConstructor();\n" : "";
-  }
-
-  return "\n"
-         "        public static final int CONSTRUCTOR = " +
-         int_to_string(id) +
-         ";\n\n"
-         "        @Override\n"
-         "        public int getConstructor() {\n"
-         "            return CONSTRUCTOR;\n"
-         "        }\n";
-}
-
-std::string TD_TL_writer_java::gen_function_result_type(const tl::tl_tree *result) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                                        const std::string &parent_class_name, int arity,
-                                                        int field_count, std::vector<tl::var_description> &vars,
-                                                        int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_function_end(bool has_parent, int field_count,
-                                                      const std::vector<tl::var_description> &vars,
-                                                      int parser_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_function_result_begin(const std::string &parser_name,
-                                                               const std::string &class_name,
-                                                               const tl::tl_tree *result) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_function_result_end() const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_function_result_any_begin(const std::string &parser_name,
-                                                                   const std::string &class_name, bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_function_result_any_end(bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_store_function_begin(const std::string &storer_name, const std::string &class_name,
-                                                        int arity, std::vector<tl::var_description> &vars,
-                                                        int storer_type) const {
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_store_function_end(const std::vector<tl::var_description> &vars,
-                                                      int storer_type) const {
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_switch_begin() const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const {
-  assert(arity == 0);
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_fetch_switch_end() const {
-  return "";
-}
-
-std::string TD_TL_writer_java::gen_constructor_begin(int field_count, const std::string &class_name,
-                                                     bool is_default) const {
-  return "\n"
-         "        public " +
-         class_name + "(";
-}
-
-std::string TD_TL_writer_java::gen_constructor_parameter(int field_num, const std::string &class_name, const tl::arg &a,
-                                                         bool is_default) const {
-  if (is_default) {
-    return "";
-  }
-
-  std::string field_type = gen_field_type(a);
-  if (field_type.empty()) {
-    return "";
-  }
-
-  if (field_type[field_type.size() - 1] != ' ') {
-    field_type += ' ';
-  }
-
-  return (field_num == 0 ? "" : ", ") + field_type + gen_field_name(a.name);
-}
-
-std::string TD_TL_writer_java::gen_constructor_field_init(int field_num, const std::string &class_name,
-                                                          const tl::arg &a, bool is_default) const {
-  std::string field_type = gen_field_type(a);
-  if (field_type.empty()) {
-    return "";
-  }
-
-  if (is_default) {
-    return (field_num == 0 ? ") {\n" : "");
-  }
-
-  return std::string(field_num == 0 ? ") {\n" : "") + "            this." + gen_field_name(a.name) + " = " +
-         gen_field_name(a.name) + ";\n";
-}
-
-std::string TD_TL_writer_java::gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const {
-  if (field_count == 0) {
-    return ") {\n"
-           "        }\n";
-  }
-  return "        }\n";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_java.h b/third-party/td/td/td/generate/tl_writer_java.h
deleted file mode 100644
index 94a602d921..0000000000
--- a/third-party/td/td/td/generate/tl_writer_java.h
+++ /dev/null
@@ -1,124 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_writer.h"
-
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-
-class TD_TL_writer_java final : public tl::TL_writer {
-  static const int MAX_ARITY = 0;
-
-  static const std::string base_type_class_names[MAX_ARITY + 1];
-  static const std::string base_tl_class_name;
-  static const std::string base_function_class_name;
-
-  const std::string package_name;
-
- public:
-  TD_TL_writer_java(const std::string &tl_name, const std::string &package_name)
-      : TL_writer(tl_name), package_name(package_name) {
-  }
-
-  int get_max_arity() const final;
-
-  bool is_built_in_simple_type(const std::string &name) const final;
-  bool is_built_in_complex_type(const std::string &name) const final;
-  bool is_type_bare(const tl::tl_type *t) const final;
-  bool is_combinator_supported(const tl::tl_combinator *constructor) const final;
-
-  int get_parser_type(const tl::tl_combinator *t, const std::string &parser_name) const final;
-  int get_storer_type(const tl::tl_combinator *t, const std::string &storer_name) const final;
-  std::vector<std::string> get_parsers() const final;
-  std::vector<std::string> get_storers() const final;
-
-  std::string gen_base_tl_class_name() const final;
-  std::string gen_base_type_class_name(int arity) const final;
-  std::string gen_base_function_class_name() const final;
-  std::string gen_class_name(std::string name) const final;
-  std::string gen_field_name(std::string name) const final;
-  std::string gen_var_name(const tl::var_description &desc) const final;
-  std::string gen_parameter_name(int index) const final;
-  std::string gen_type_name(const tl::tl_tree_type *tree_type) const final;
-  std::string gen_array_type_name(const tl::tl_tree_array *arr, const std::string &field_name) const final;
-  std::string gen_var_type_name() const final;
-
-  std::string gen_int_const(const tl::tl_tree *tree_c, const std::vector<tl::var_description> &vars) const final;
-
-  std::string gen_output_begin(const std::string &additional_imports) const final;
-  std::string gen_output_begin_once() const final;
-  std::string gen_output_end() const final;
-
-  std::string gen_import_declaration(const std::string &name, bool is_system) const final;
-
-  std::string gen_package_suffix() const final;
-
-  std::string gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const final;
-
-  std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                              const tl::tl_tree *result) const final;
-  std::string gen_class_end() const final;
-
-  std::string gen_class_alias(const std::string &class_name, const std::string &alias_name) const final;
-
-  std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                   const std::string &field_name) const final;
-
-  std::string gen_vars(const tl::tl_combinator *t, const tl::tl_tree_type *result_type,
-                       std::vector<tl::var_description> &vars) const final;
-  std::string gen_function_vars(const tl::tl_combinator *t, std::vector<tl::var_description> &vars) const final;
-  std::string gen_uni(const tl::tl_tree_type *result_type, std::vector<tl::var_description> &vars,
-                      bool check_negative) const final;
-  std::string gen_constructor_id_store(std::int32_t id, int storer_type) const final;
-  std::string gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars, bool flat,
-                              int parser_type) const final;
-  std::string gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                              std::vector<tl::var_description> &vars, bool flat, int storer_type) const final;
-  std::string gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int parser_type) const final;
-  std::string gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int storer_type) const final;
-  std::string gen_var_type_fetch(const tl::arg &a) const final;
-
-  std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const final;
-
-  std::string gen_function_result_type(const tl::tl_tree *result) const final;
-
-  std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                       const std::string &parent_class_name, int arity, int field_count,
-                                       std::vector<tl::var_description> &vars, int parser_type) const final;
-  std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<tl::var_description> &vars,
-                                     int parser_type) const final;
-
-  std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
-                                              const tl::tl_tree *result) const final;
-  std::string gen_fetch_function_result_end() const final;
-  std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
-                                                  bool is_proxy) const final;
-  std::string gen_fetch_function_result_any_end(bool is_proxy) const final;
-
-  std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
-                                       std::vector<tl::var_description> &vars, int storer_type) const final;
-  std::string gen_store_function_end(const std::vector<tl::var_description> &vars, int storer_type) const final;
-
-  std::string gen_fetch_switch_begin() const final;
-  std::string gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const final;
-  std::string gen_fetch_switch_end() const final;
-
-  std::string gen_constructor_begin(int field_count, const std::string &class_name, bool is_default) const final;
-  std::string gen_constructor_parameter(int field_num, const std::string &class_name, const tl::arg &a,
-                                        bool is_default) const final;
-  std::string gen_constructor_field_init(int field_num, const std::string &class_name, const tl::arg &a,
-                                         bool is_default) const final;
-  std::string gen_constructor_end(const tl::tl_combinator *t, int field_count, bool is_default) const final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_jni_cpp.cpp b/third-party/td/td/td/generate/tl_writer_jni_cpp.cpp
deleted file mode 100644
index fe5fc7127b..0000000000
--- a/third-party/td/td/td/generate/tl_writer_jni_cpp.cpp
+++ /dev/null
@@ -1,675 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_jni_cpp.h"
-
-#include <cassert>
-#include <cstdio>
-
-namespace td {
-
-std::string TD_TL_writer_jni_cpp::gen_output_begin_once() const {
-#define DEFINE_STR_VALUE_IMPL(x) #x
-#define DEFINE_STR_VALUE(x) DEFINE_STR_VALUE_IMPL(x)
-  return TD_TL_writer_cpp::gen_output_begin_once() +
-         "\nconst char *&get_package_name_ref() {\n"
-         "  static const char *package_name = \"Package name must be initialized first\";\n"
-         "  return package_name;\n"
-         "}\n"
-         "\nconst char *get_git_commit_hash() {\n"
-         "  return \"" DEFINE_STR_VALUE(GIT_COMMIT_HASH) "\";\n"
-         "}\n";
-#undef DEFINE_STR_VALUE
-#undef DEFINE_STR_VALUE_IMPL
-}
-
-bool TD_TL_writer_jni_cpp::is_built_in_simple_type(const std::string &name) const {
-  return name == "Bool" || name == "Int32" || name == "Int53" || name == "Int64" || name == "Double" ||
-         name == "String" || name == "Bytes";
-}
-
-bool TD_TL_writer_jni_cpp::is_built_in_complex_type(const std::string &name) const {
-  return name == "Vector";
-}
-
-int TD_TL_writer_jni_cpp::get_parser_type(const tl::tl_combinator *t, const std::string &parser_name) const {
-  return 1;
-}
-
-int TD_TL_writer_jni_cpp::get_additional_function_type(const std::string &additional_function_name) const {
-  return 1;
-}
-
-std::vector<std::string> TD_TL_writer_jni_cpp::get_parsers() const {
-  std::vector<std::string> parsers;
-  parsers.push_back("JNIEnv *env, jobject");
-  return parsers;
-}
-
-std::vector<std::string> TD_TL_writer_jni_cpp::get_storers() const {
-  std::vector<std::string> storers;
-  storers.push_back("JNIEnv *env, jobject");
-  storers.push_back("TlStorerToString");
-  return storers;
-}
-
-std::vector<std::string> TD_TL_writer_jni_cpp::get_additional_functions() const {
-  std::vector<std::string> additional_functions;
-  additional_functions.push_back("init_jni_vars");
-  return additional_functions;
-}
-
-std::string TD_TL_writer_jni_cpp::gen_base_type_class_name(int arity) const {
-  assert(arity == 0);
-  return "Object";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_base_tl_class_name() const {
-  return "Object";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_class_begin(const std::string &class_name, const std::string &base_class_name,
-                                                  bool is_proxy, const tl::tl_tree *result) const {
-  return "\n"
-         "jclass " +
-         class_name + "::Class;\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                                       const std::string &field_name) const {
-  return "jfieldID " + class_name + "::" + field_name + "fieldID;\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_constructor_id_store(std::int32_t id, int storer_type) const {
-  return "";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_vector_fetch(std::string field_name, const tl::tl_tree_type *t,
-                                                   const std::vector<tl::var_description> &vars,
-                                                   int parser_type) const {
-  std::string vector_type = gen_type_name(t);
-
-  if (vector_type == "bool") {
-    assert(false);  // TODO
-  }
-
-  std::string fetch_object = "jni::fetch_object(env, p, " + field_name + "fieldID)";
-  std::string array_type;
-  if (vector_type == "int32") {
-    array_type = "jintArray";
-  }
-  if (vector_type == "int53" || vector_type == "int64") {
-    array_type = "jlongArray";
-  }
-  if (vector_type == "double") {
-    array_type = "jdoubleArray";
-  }
-
-  if (!array_type.empty()) {
-    return "jni::fetch_vector(env, (" + array_type + ")" + fetch_object + ")";
-  }
-
-  std::string template_type;
-  if (vector_type == "string") {
-    template_type = "string";
-  } else if (vector_type.compare(0, 5, "array") == 0) {
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(t->children[0]);
-    template_type = gen_type_name(child);
-    if (template_type.compare(0, 10, "object_ptr") == 0) {
-      template_type = gen_main_class_name(child->type);
-    }
-    template_type = "array<" + template_type + ">";
-  } else if (vector_type == "bytes") {
-    template_type = "jbyteArray";
-  } else {
-    assert(vector_type.compare(0, 10, "object_ptr") == 0);
-    template_type = gen_main_class_name(t->type);
-  }
-  return "jni::FetchVector<" + template_type + ">::fetch(env, (jobjectArray)" + fetch_object + ")";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                                 const std::vector<tl::var_description> &vars, int parser_type) const {
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  assert(!(t->flags & tl::FLAG_DEFAULT_CONSTRUCTOR));
-  assert(parser_type == 1);
-
-  if (!(tree_type->flags & tl::FLAG_BARE)) {
-    if (is_type_bare(t)) {
-      if (!field_name.empty()) {
-        std::fprintf(stderr, "Do not use non-bare fields with bare type %s\n", name.c_str());
-        //        assert(false);
-      }
-    }
-  } else {
-    assert(is_type_bare(t));
-  }
-
-  std::string res_begin;
-  if (!field_name.empty()) {
-    res_begin = field_name + " = ";
-  }
-
-  std::string res;
-  assert(name != "#");
-  if (field_name.empty()) {
-    if (name == "Bool") {
-      return "env->CallObjectMethod(p, jni::BooleanGetValueMethodID)";
-    } else if (name == "Int32") {
-      return "env->CallObjectMethod(p, jni::IntegerGetValueMethodID)";
-    } else if (name == "Int53" || name == "Int64") {
-      return "env->CallObjectMethod(p, jni::LongGetValueMethodID)";
-    } else if (name == "Double") {
-      return "env->CallObjectMethod(p, jni::DoubleGetValueMethodID)";
-    } else if (name == "String") {
-      return "jni::from_jstring(env, (jstring)p)";
-    } else if (name == "Bytes") {
-      return "jni::from_bytes(env, (jbyteArray)p)";
-    }
-  }
-
-  if (name == "Bool") {
-    res = "(env->GetBooleanField(p, " + field_name + "fieldID) != 0)";
-  } else if (name == "Int32") {
-    res = "env->GetIntField(p, " + field_name + "fieldID)";
-  } else if (name == "Int53" || name == "Int64") {
-    res = "env->GetLongField(p, " + field_name + "fieldID)";
-  } else if (name == "Double") {
-    res = "env->GetDoubleField(p, " + field_name + "fieldID)";
-  } else if (name == "String") {
-    res = "jni::fetch_string(env, p, " + field_name + "fieldID)";
-  } else if (name == "Bytes") {
-    res = "jni::from_bytes(env, (jbyteArray)jni::fetch_object(env, p, " + field_name + "fieldID))";
-  } else if (name == "Vector") {
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-    res = gen_vector_fetch(field_name, child, vars, parser_type);
-  } else {
-    if (field_name.empty()) {
-      return gen_main_class_name(tree_type->type) + "::fetch(env, p)";
-    }
-    res = "jni::fetch_tl_object<" + gen_main_class_name(tree_type->type) + ">(env, jni::fetch_object(env, p, " +
-          field_name + "fieldID))";
-  }
-  return res_begin + res;
-}
-
-std::string TD_TL_writer_jni_cpp::gen_field_fetch(int field_num, const tl::arg &a,
-                                                  std::vector<tl::var_description> &vars, bool flat,
-                                                  int parser_type) const {
-  assert(parser_type >= 0);
-  std::string field_name = (parser_type == 0 ? (field_num == 0 ? ": " : ", ") : "res->") + gen_field_name(a.name);
-
-  assert(a.exist_var_num == -1);
-  if (a.type->get_type() == tl::NODE_TYPE_VAR_TYPE) {
-    assert(parser_type == 1);
-
-    const tl::tl_tree_var_type *t = static_cast<const tl::tl_tree_var_type *>(a.type);
-    assert(a.flags == tl::FLAG_EXCL);
-
-    assert(a.var_num == -1);
-
-    assert(t->var_num >= 0);
-    assert(vars[t->var_num].is_type);
-    assert(!vars[t->var_num].is_stored);
-    vars[t->var_num].is_stored = true;
-
-    assert(false && "not supported");
-    return "  " + field_name + " = " + gen_base_function_class_name() + "::fetch(env, p);\n";
-  }
-
-  assert(!(a.flags & tl::FLAG_EXCL));
-  assert(!(a.flags & tl::FLAG_OPT_VAR));
-
-  if (flat) {
-    //    TODO
-    //    return gen_field_fetch(const tl::arg &a, std::vector<tl::var_description> &vars, int num, bool flat);
-  }
-
-  assert(a.var_num == -1);
-
-  assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-  const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(a.type);
-
-  assert(parser_type != 0);
-  return "  " + gen_type_fetch(field_name, tree_type, vars, parser_type) + ";\n";
-}
-
-std::string TD_TL_writer_jni_cpp::get_pretty_field_name(std::string field_name) const {
-  return gen_java_field_name(TD_TL_writer_cpp::get_pretty_field_name(field_name));
-}
-
-std::string TD_TL_writer_jni_cpp::get_pretty_class_name(std::string class_name) const {
-  if (class_name == "vector") {
-    return "Array";
-  }
-  return gen_basic_java_class_name(class_name);
-}
-
-std::string TD_TL_writer_jni_cpp::gen_vector_store(const std::string &field_name, const tl::tl_tree_type *t,
-                                                   const std::vector<tl::var_description> &vars,
-                                                   int storer_type) const {
-  if (storer_type == 1) {
-    return TD_TL_writer_cpp::gen_vector_store(field_name, t, vars, storer_type);
-  }
-
-  std::string vector_type = gen_type_name(t);
-
-  if (vector_type == "bool") {
-    assert(false);  // TODO
-  }
-  if (vector_type == "int32" || vector_type == "int53" || vector_type == "int64" || vector_type == "double" ||
-      vector_type == "string" || vector_type.compare(0, 5, "array") == 0 ||
-      vector_type.compare(0, 10, "object_ptr") == 0) {
-    return "{ "
-           "auto arr_tmp_ = jni::store_vector(env, " +
-           field_name +
-           "); "
-           "if (arr_tmp_) { "
-           "env->SetObjectField(s, " +
-           field_name +
-           "fieldID, arr_tmp_); "
-           "env->DeleteLocalRef(arr_tmp_); "
-           "} }";
-  }
-  if (vector_type == "bytes") {
-    std::fprintf(stderr, "Vector of Bytes is not supported\n");
-    assert(false);
-  }
-
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                                                 const std::vector<tl::var_description> &vars, int storer_type) const {
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  assert(!field_name.empty());
-
-  assert(!(t->flags & tl::FLAG_DEFAULT_CONSTRUCTOR));
-
-  if (!(tree_type->flags & tl::FLAG_BARE)) {
-    if (storer_type == 0) {
-      if (is_type_bare(t)) {
-        std::fprintf(stderr, "Do not use non-bare fields with bare type %s\n", name.c_str());
-        //        assert(false);
-      }
-    }
-  } else {
-    assert(is_type_bare(t));
-  }
-
-  std::string res;
-  if (name == "Int32" || name == "Int53" || name == "Int64" || name == "Double" || name == "Bool" || name == "String") {
-    if (storer_type == 1) {
-      res = "s.store_field(\"" + get_pretty_field_name(field_name) + "\", " + field_name + ");";
-    } else if (name == "Bool") {
-      res = "env->SetBooleanField(s, " + field_name + "fieldID, " + field_name + ");";
-    } else if (name == "Int32") {
-      res = "env->SetIntField(s, " + field_name + "fieldID, " + field_name + ");";
-    } else if (name == "Int53" || name == "Int64") {
-      res = "env->SetLongField(s, " + field_name + "fieldID, " + field_name + ");";
-    } else if (name == "Double") {
-      res = "env->SetDoubleField(s, " + field_name + "fieldID, " + field_name + ");";
-    } else if (name == "String") {
-      res = "{ jstring nextString = jni::to_jstring(env, " + field_name +
-            "); if (nextString) { env->SetObjectField(s, " + field_name +
-            "fieldID, nextString); env->DeleteLocalRef(nextString); } }";
-    } else {
-      assert(false);
-    }
-  } else if (name == "Bytes") {
-    if (storer_type == 1) {
-      res = "s.store_bytes_field(\"" + get_pretty_field_name(field_name) + "\", " + field_name + ");";
-    } else {
-      res = "{ jbyteArray nextBytes = jni::to_bytes(env, " + field_name +
-            "); if (nextBytes) { env->SetObjectField(s, " + field_name +
-            "fieldID, nextBytes); env->DeleteLocalRef(nextBytes); } }";
-    }
-  } else if (name == "Vector") {
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-    res = gen_vector_store(field_name, child, vars, storer_type);
-  } else {
-    if (storer_type == 1) {
-      res = "s.store_object_field(\"" + get_pretty_field_name(field_name) + "\", static_cast<const BaseObject *>(" +
-            field_name + ".get()));";
-    } else {
-      res = "if (" + field_name + " != nullptr) { jobject next; " + field_name +
-            "->store(env, next); if (next) { env->SetObjectField(s, " + field_name +
-            "fieldID, next); env->DeleteLocalRef(next); } }";
-    }
-    assert(tree_type->children.empty());
-  }
-  return res;
-}
-
-std::string TD_TL_writer_jni_cpp::gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                                                  std::vector<tl::var_description> &vars, bool flat,
-                                                  int storer_type) const {
-  std::string field_name = gen_field_name(a.name);
-  std::string shift = storer_type == 1 ? "    " : "  ";
-
-  assert(a.exist_var_num == -1);
-  if (a.type->get_type() == tl::NODE_TYPE_VAR_TYPE) {
-    const tl::tl_tree_var_type *t = static_cast<const tl::tl_tree_var_type *>(a.type);
-    assert(a.flags == tl::FLAG_EXCL);
-
-    assert(a.var_num == -1);
-
-    assert(t->var_num >= 0);
-    assert(!vars[t->var_num].is_stored);
-    vars[t->var_num].is_stored = true;
-    assert(vars[t->var_num].is_type);
-
-    assert(false && "not supported");
-    return shift + field_name + "->store(env, s);\n";
-  }
-
-  assert(!(a.flags & tl::FLAG_EXCL));
-  assert(!(a.flags & tl::FLAG_OPT_VAR));
-
-  if (flat) {
-    //    TODO
-    //    return gen_field_store(const tl::arg &a, std::vector<tl::var_description> &vars, bool flat, int storer_type);
-  }
-
-  assert(a.var_num == -1);
-  assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-  const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(a.type);
-  return shift + gen_type_store(field_name, tree_type, vars, storer_type) + "\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const {
-  if (is_proxy) {
-    return "";
-  }
-  return "\nconst std::int32_t " + class_name + "::ID;\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_function_begin(const std::string &parser_name,
-                                                           const std::string &class_name,
-                                                           const std::string &parent_class_name, int arity,
-                                                           int field_count, std::vector<tl::var_description> &vars,
-                                                           int parser_type) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    assert(!vars[i].is_stored);
-  }
-
-  std::string fetched_type = "object_ptr<" + class_name + "> ";
-  std::string returned_type = "object_ptr<" + parent_class_name + "> ";
-  assert(arity == 0);
-
-  assert(parser_type != 0);
-
-  std::string result = "\n" + returned_type + class_name + "::fetch(" + parser_name + " &p) {\n";
-  if (parser_type != -1) {
-    result += "  if (p == nullptr) return nullptr;\n";
-    if (field_count == 0 && vars.empty()) {
-      result += "  return make_object<" + class_name + ">();\n";
-    } else {
-      result +=
-          "  init_jni_vars(env);\n"
-          "  " +
-          fetched_type + "res = make_object<" + class_name + ">();\n";
-    }
-  }
-  return result;
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_function_end(bool has_parent, int field_count,
-                                                         const std::vector<tl::var_description> &vars,
-                                                         int parser_type) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    assert(vars[i].is_stored);
-  }
-
-  assert(parser_type != 0);
-
-  if (parser_type == -1 || field_count == 0) {
-    return "}\n";
-  }
-
-  return "  return " + std::string(has_parent ? "std::move(res)" : "res") +
-         ";\n"
-         "}\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_function_result_begin(const std::string &parser_name,
-                                                                  const std::string &class_name,
-                                                                  const tl::tl_tree *result) const {
-  return "\n" + class_name + "::ReturnType " + class_name + "::fetch_result(" + parser_name +
-         " &p) {\n"
-         "  if (p == nullptr) return ReturnType();\n"
-         "  return ";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_function_result_end() const {
-  return ";\n"
-         "}\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_function_result_any_begin(const std::string &parser_name,
-                                                                      const std::string &class_name,
-                                                                      bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_function_result_any_end(bool is_proxy) const {
-  return "";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_store_function_begin(const std::string &storer_name,
-                                                           const std::string &class_name, int arity,
-                                                           std::vector<tl::var_description> &vars,
-                                                           int storer_type) const {
-  for (std::size_t i = 0; i < vars.size(); i++) {
-    vars[i].is_stored = false;
-  }
-
-  if (storer_type == -1) {
-    return "";
-  }
-
-  assert(arity == 0);
-  return "\n"
-         "void " +
-         class_name + "::store(" + storer_name + " &s" +
-         std::string(storer_type <= 0 ? "" : ", const char *field_name") + ") const {\n" +
-         (storer_type <= 0 ? "  init_jni_vars(env);\n"
-                             "  s = env->AllocObject(Class);\n"
-                             "  if (!s) { return; }\n"
-                           : "  if (!LOG_IS_STRIPPED(ERROR)) {\n"
-                             "    s.store_class_begin(field_name, \"" +
-                                 get_pretty_class_name(class_name) + "\");\n");
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_switch_begin() const {
-  return "  if (p == nullptr) { return nullptr; }\n"
-         "  jint constructor = env->CallIntMethod(p, jni::GetConstructorID);"
-         "  switch (constructor) {\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const {
-  assert(arity == 0);
-  return "    case " + gen_class_name(t->name) +
-         "::ID:\n"
-         "      return " +
-         gen_class_name(t->name) + "::fetch(env, p);\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_fetch_switch_end() const {
-  return "    default:\n"
-         "      LOG(WARNING) << \"Unknown Java API constructor found \" << format::as_hex(constructor);\n"
-         "      return nullptr;\n"
-         "  }\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_java_field_name(std::string name) const {
-  std::string result;
-  bool next_to_upper = false;
-  for (std::size_t i = 0; i < name.size(); i++) {
-    if (!is_alnum(name[i])) {
-      next_to_upper = true;
-      continue;
-    }
-    if (next_to_upper) {
-      result += to_upper(name[i]);
-      next_to_upper = false;
-    } else {
-      result += name[i];
-    }
-  }
-  return result;
-}
-
-std::string TD_TL_writer_jni_cpp::gen_basic_java_class_name(std::string name) const {
-  std::string result;
-  bool next_to_upper = true;
-  for (std::size_t i = 0; i < name.size(); i++) {
-    if (!is_alnum(name[i])) {
-      next_to_upper = true;
-      continue;
-    }
-    if (next_to_upper) {
-      result += to_upper(name[i]);
-      next_to_upper = false;
-    } else {
-      result += name[i];
-    }
-  }
-  return result;
-}
-
-std::string TD_TL_writer_jni_cpp::gen_java_class_name(std::string name) const {
-  return "(PSLICE() << get_package_name_ref() << \"/TdApi$" + gen_basic_java_class_name(name) + "\").c_str()";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_type_signature(const tl::tl_tree_type *tree_type) const {
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  assert(name != "#");
-  assert(name != gen_base_tl_class_name());
-  if (name == "Bool") {
-    return "Z";
-  } else if (name == "Int32") {
-    return "I";
-  } else if (name == "Int53" || name == "Int64") {
-    return "J";
-  } else if (name == "Double") {
-    return "D";
-  } else if (name == "String") {
-    return "Ljava/lang/String;";
-  } else if (name == "Bytes") {
-    return "[B";
-  } else if (name == "Vector") {
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-    return "[" + gen_type_signature(child);
-  } else {
-    return "L%PACKAGE_NAME%/TdApi$" + gen_basic_java_class_name(gen_main_class_name(t)) + ";";
-  }
-  assert(false);
-  return "";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_additional_function(const std::string &function_name, const tl::tl_combinator *t,
-                                                          bool is_function) const {
-  assert(function_name == "init_jni_vars");
-  std::string class_name = gen_class_name(t->name);
-  std::string class_name_class = "Class";
-  std::string res =
-      "\n"
-      "void " +
-      class_name + "::" + function_name +
-      "(JNIEnv *env) {\n"
-      "  static bool is_inited = [&] {\n"
-      "    " +
-      class_name_class + " = jni::get_jclass(env, " + gen_java_class_name(gen_class_name(t->name)) + ");\n";
-
-  if (!t->args.empty()) {
-    for (std::size_t i = 0; i < t->args.size(); i++) {
-      const tl::arg &a = t->args[i];
-      assert(a.type->get_type() == tl::NODE_TYPE_TYPE);
-      const tl::tl_tree_type *tree_type = static_cast<tl::tl_tree_type *>(a.type);
-
-      std::string field_name = gen_field_name(a.name);
-      assert(!field_name.empty());
-      std::string java_field_name = gen_java_field_name(std::string(field_name, 0, field_name.size() - 1));
-
-      std::string type_signature = gen_type_signature(tree_type);
-      if (type_signature.find("%PACKAGE_NAME%") == std::string::npos) {
-        type_signature = '"' + type_signature + '"';
-      } else {
-        std::string new_type_signature = "(PSLICE()";
-        std::size_t pos = type_signature.find("%PACKAGE_NAME%");
-        while (pos != std::string::npos) {
-          new_type_signature += " << \"" + type_signature.substr(0, pos) + "\" << get_package_name_ref()";
-          type_signature = type_signature.substr(pos + 14);
-          pos = type_signature.find("%PACKAGE_NAME%");
-        }
-        if (!type_signature.empty()) {
-          new_type_signature += " << \"" + type_signature + "\"";
-        }
-        type_signature = new_type_signature + ").c_str()";
-      }
-      res += "    " + field_name + "fieldID = jni::get_field_id(env, " + class_name_class + ", \"" + java_field_name +
-             "\", " + type_signature + ");\n";
-    }
-  }
-  res +=
-      "    return true;\n"
-      "  }();\n"
-      "  (void)is_inited;\n"
-      "}\n";
-  return res;
-}
-
-std::string TD_TL_writer_jni_cpp::gen_additional_proxy_function_begin(const std::string &function_name,
-                                                                      const tl::tl_type *type,
-                                                                      const std::string &class_name, int arity,
-                                                                      bool is_function) const {
-  assert(function_name == "init_jni_vars");
-  assert(arity == 0);
-  return "\n"
-         "void " +
-         class_name + "::" + function_name +
-         "(JNIEnv *env) {\n"
-         "  static bool is_inited = [&] {\n"
-         "    Class = jni::get_jclass(env, " +
-         gen_java_class_name(class_name) +
-         ");\n"
-         "    return true;\n"
-         "  }();\n"
-         "  (void)is_inited;\n";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_additional_proxy_function_case(const std::string &function_name,
-                                                                     const tl::tl_type *type,
-                                                                     const std::string &class_name, int arity) const {
-  assert(function_name == "init_jni_vars");
-  assert(arity == 0);
-  return "";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_additional_proxy_function_case(const std::string &function_name,
-                                                                     const tl::tl_type *type,
-                                                                     const tl::tl_combinator *t, int arity,
-                                                                     bool is_function) const {
-  assert(function_name == "init_jni_vars");
-  assert(arity == 0);
-  return "";
-}
-
-std::string TD_TL_writer_jni_cpp::gen_additional_proxy_function_end(const std::string &function_name,
-                                                                    const tl::tl_type *type, bool is_function) const {
-  assert(function_name == "init_jni_vars");
-  return "}\n";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_jni_cpp.h b/third-party/td/td/td/generate/tl_writer_jni_cpp.h
deleted file mode 100644
index 3d7cb0d25e..0000000000
--- a/third-party/td/td/td/generate/tl_writer_jni_cpp.h
+++ /dev/null
@@ -1,109 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "tl_writer_cpp.h"
-
-#include <cstddef>
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-
-class TD_TL_writer_jni_cpp final : public TD_TL_writer_cpp {
-  std::string gen_output_begin_once() const final;
-
-  std::string gen_vector_fetch(std::string field_name, const tl::tl_tree_type *t,
-                               const std::vector<tl::var_description> &vars, int parser_type) const;
-
-  std::string gen_vector_store(const std::string &field_name, const tl::tl_tree_type *t,
-                               const std::vector<tl::var_description> &vars, int storer_type) const;
-
-  std::string gen_java_field_name(std::string name) const;
-
-  std::string gen_basic_java_class_name(std::string name) const;
-
-  std::string gen_java_class_name(std::string name) const;
-
-  std::string gen_type_signature(const tl::tl_tree_type *tree_type) const;
-
-  std::string get_pretty_field_name(std::string field_name) const final;
-
-  std::string get_pretty_class_name(std::string class_name) const final;
-
- public:
-  TD_TL_writer_jni_cpp(const std::string &tl_name, const std::string &string_type, const std::string &bytes_type,
-                       const std::vector<std::string> &ext_include)
-      : TD_TL_writer_cpp(tl_name, string_type, bytes_type, ext_include) {
-  }
-
-  bool is_built_in_simple_type(const std::string &name) const final;
-  bool is_built_in_complex_type(const std::string &name) const final;
-
-  int get_parser_type(const tl::tl_combinator *t, const std::string &parser_name) const final;
-  int get_additional_function_type(const std::string &additional_function_name) const final;
-  std::vector<std::string> get_parsers() const final;
-  std::vector<std::string> get_storers() const final;
-  std::vector<std::string> get_additional_functions() const final;
-
-  std::string gen_base_type_class_name(int arity) const final;
-  std::string gen_base_tl_class_name() const final;
-
-  std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                              const tl::tl_tree *result) const final;
-
-  std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                   const std::string &field_name) const final;
-
-  std::string gen_constructor_id_store(std::int32_t id, int storer_type) const final;
-
-  std::string gen_field_fetch(int field_num, const tl::arg &a, std::vector<tl::var_description> &vars, bool flat,
-                              int parser_type) const final;
-  std::string gen_field_store(const tl::arg &a, const std::vector<tl::arg> &args,
-                              std::vector<tl::var_description> &vars, bool flat, int storer_type) const final;
-  std::string gen_type_fetch(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int parser_type) const final;
-  std::string gen_type_store(const std::string &field_name, const tl::tl_tree_type *tree_type,
-                             const std::vector<tl::var_description> &vars, int storer_type) const final;
-
-  std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const final;
-
-  std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                       const std::string &parent_class_name, int arity, int field_count,
-                                       std::vector<tl::var_description> &vars, int parser_type) const final;
-  std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<tl::var_description> &vars,
-                                     int parser_type) const final;
-
-  std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
-                                              const tl::tl_tree *result) const final;
-  std::string gen_fetch_function_result_end() const final;
-  std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
-                                                  bool is_proxy) const final;
-  std::string gen_fetch_function_result_any_end(bool is_proxy) const final;
-
-  std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
-                                       std::vector<tl::var_description> &vars, int storer_type) const final;
-
-  std::string gen_fetch_switch_begin() const final;
-  std::string gen_fetch_switch_case(const tl::tl_combinator *t, int arity) const final;
-  std::string gen_fetch_switch_end() const final;
-
-  std::string gen_additional_function(const std::string &function_name, const tl::tl_combinator *t,
-                                      bool is_function) const final;
-  std::string gen_additional_proxy_function_begin(const std::string &function_name, const tl::tl_type *type,
-                                                  const std::string &class_name, int arity,
-                                                  bool is_function) const final;
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl::tl_type *type,
-                                                 const std::string &class_name, int arity) const final;
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl::tl_type *type,
-                                                 const tl::tl_combinator *t, int arity, bool is_function) const final;
-  std::string gen_additional_proxy_function_end(const std::string &function_name, const tl::tl_type *type,
-                                                bool is_function) const final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_jni_h.cpp b/third-party/td/td/td/generate/tl_writer_jni_h.cpp
deleted file mode 100644
index 476a4ad129..0000000000
--- a/third-party/td/td/td/generate/tl_writer_jni_h.cpp
+++ /dev/null
@@ -1,170 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_jni_h.h"
-
-#include <cassert>
-
-namespace td {
-
-bool TD_TL_writer_jni_h::is_built_in_simple_type(const std::string &name) const {
-  return name == "Bool" || name == "Int32" || name == "Int53" || name == "Int64" || name == "Double" ||
-         name == "String" || name == "Bytes";
-}
-
-bool TD_TL_writer_jni_h::is_built_in_complex_type(const std::string &name) const {
-  return name == "Vector";
-}
-
-int TD_TL_writer_jni_h::get_additional_function_type(const std::string &additional_function_name) const {
-  if (additional_function_name == "init_jni_vars") {
-    return 1;
-  }
-  return TD_TL_writer_h::get_additional_function_type(additional_function_name);
-}
-
-int TD_TL_writer_jni_h::get_parser_type(const tl::tl_combinator *t, const std::string &parser_name) const {
-  return 1;
-}
-
-std::vector<std::string> TD_TL_writer_jni_h::get_parsers() const {
-  std::vector<std::string> parsers;
-  parsers.push_back("JNIEnv *env, jobject");
-  return parsers;
-}
-
-std::vector<std::string> TD_TL_writer_jni_h::get_storers() const {
-  std::vector<std::string> storers;
-  storers.push_back("JNIEnv *env, jobject");
-  storers.push_back("TlStorerToString");
-  return storers;
-}
-
-std::vector<std::string> TD_TL_writer_jni_h::get_additional_functions() const {
-  std::vector<std::string> additional_functions = TD_TL_writer_h::get_additional_functions();
-  additional_functions.push_back("init_jni_vars");
-  return additional_functions;
-}
-
-std::string TD_TL_writer_jni_h::gen_base_type_class_name(int arity) const {
-  assert(arity == 0);
-  return "Object";
-}
-
-std::string TD_TL_writer_jni_h::gen_base_tl_class_name() const {
-  return "Object";
-}
-
-std::string TD_TL_writer_jni_h::gen_output_begin(const std::string &additional_imports) const {
-  std::string ext_include_str;
-  for (auto &it : ext_include) {
-    ext_include_str += "#include " + it + "\n";
-  }
-  return "#pragma once\n\n"
-         "#include \"td/tl/TlObject.h\"\n\n"
-         "#include <cstdint>\n"
-         "#include <utility>\n"
-         "#include <vector>\n\n"
-         "#include <jni.h>\n\n" +
-         ext_include_str + "\n" + additional_imports +
-
-         "namespace td {\n" + forward_declaration("TlStorerToString") +
-         "\n"
-         "namespace " +
-         tl_name + " {\n\n";
-}
-
-std::string TD_TL_writer_jni_h::gen_output_begin_once() const {
-  std::string result = TD_TL_writer_h::gen_output_begin_once();
-  std::string old_base_object = "using BaseObject = ::td::TlObject";
-  std::size_t pos = result.find(old_base_object);
-  assert(pos != std::string::npos);
-  result.replace(pos, old_base_object.size(),
-                 "class " + gen_base_tl_class_name() +
-                     ";\n"
-                     "using BaseObject = " +
-                     gen_base_tl_class_name());
-  return result + "const char *&get_package_name_ref();\nconst char *get_git_commit_hash();\n\n";
-}
-
-std::string TD_TL_writer_jni_h::gen_class_begin(const std::string &class_name, const std::string &base_class_name,
-                                                bool is_proxy, const tl::tl_tree *result) const {
-  if (class_name == gen_base_tl_class_name()) {
-    return "class " + class_name +
-           " {\n"
-           " public:\n"
-           "  virtual ~" +
-           class_name +
-           "() {\n"
-           "  }\n\n"
-           "  virtual void store(JNIEnv *env, jobject &s) const {\n"
-           "  }\n\n"
-           "  virtual void store(TlStorerToString &s, const char *field_name) const = 0;\n\n"
-           "  static jclass Class;\n";
-  }
-  return TD_TL_writer_h::gen_class_begin(class_name, base_class_name, is_proxy, result) + "  static jclass Class;\n";
-}
-
-std::string TD_TL_writer_jni_h::gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                                     const std::string &field_name) const {
-  return TD_TL_writer_h::gen_field_definition(class_name, type_name, field_name) + "  static jfieldID " + field_name +
-         "fieldID;\n";
-}
-
-std::string TD_TL_writer_jni_h::gen_additional_function(const std::string &function_name, const tl::tl_combinator *t,
-                                                        bool is_function) const {
-  if (function_name == "init_jni_vars") {
-    return "\n"
-           "  static void " +
-           function_name + "(JNIEnv *env);\n";
-  }
-
-  return TD_TL_writer_h::gen_additional_function(function_name, t, is_function);
-}
-
-std::string TD_TL_writer_jni_h::gen_additional_proxy_function_begin(const std::string &function_name,
-                                                                    const tl::tl_type *type,
-                                                                    const std::string &class_name, int arity,
-                                                                    bool is_function) const {
-  if (function_name == "init_jni_vars") {
-    return "\n"
-           "  static void " +
-           function_name + "(JNIEnv *env);\n";
-  }
-
-  return TD_TL_writer_h::gen_additional_proxy_function_begin(function_name, type, class_name, arity, is_function);
-}
-
-std::string TD_TL_writer_jni_h::gen_additional_proxy_function_case(const std::string &function_name,
-                                                                   const tl::tl_type *type,
-                                                                   const std::string &class_name, int arity) const {
-  if (function_name == "init_jni_vars") {
-    return "";
-  }
-
-  return TD_TL_writer_h::gen_additional_proxy_function_case(function_name, type, class_name, arity);
-}
-
-std::string TD_TL_writer_jni_h::gen_additional_proxy_function_case(const std::string &function_name,
-                                                                   const tl::tl_type *type, const tl::tl_combinator *t,
-                                                                   int arity, bool is_function) const {
-  if (function_name == "init_jni_vars") {
-    return "";
-  }
-
-  return TD_TL_writer_h::gen_additional_proxy_function_case(function_name, type, t, arity, is_function);
-}
-
-std::string TD_TL_writer_jni_h::gen_additional_proxy_function_end(const std::string &function_name,
-                                                                  const tl::tl_type *type, bool is_function) const {
-  if (function_name == "init_jni_vars") {
-    return "";
-  }
-
-  return TD_TL_writer_h::gen_additional_proxy_function_end(function_name, type, is_function);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_jni_h.h b/third-party/td/td/td/generate/tl_writer_jni_h.h
deleted file mode 100644
index a501b53cfa..0000000000
--- a/third-party/td/td/td/generate/tl_writer_jni_h.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "tl_writer_h.h"
-
-#include <string>
-#include <vector>
-
-namespace td {
-
-class TD_TL_writer_jni_h final : public TD_TL_writer_h {
- public:
-  TD_TL_writer_jni_h(const std::string &tl_name, const std::string &string_type, const std::string &bytes_type,
-                     const std::vector<std::string> &ext_include)
-      : TD_TL_writer_h(tl_name, string_type, bytes_type, ext_include) {
-  }
-
-  bool is_built_in_simple_type(const std::string &name) const final;
-  bool is_built_in_complex_type(const std::string &name) const final;
-
-  int get_parser_type(const tl::tl_combinator *t, const std::string &parser_name) const final;
-  int get_additional_function_type(const std::string &additional_function_name) const final;
-  std::vector<std::string> get_parsers() const final;
-  std::vector<std::string> get_storers() const final;
-  std::vector<std::string> get_additional_functions() const final;
-
-  std::string gen_base_type_class_name(int arity) const final;
-  std::string gen_base_tl_class_name() const final;
-
-  std::string gen_output_begin(const std::string &additional_imports) const final;
-  std::string gen_output_begin_once() const final;
-
-  std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                              const tl::tl_tree *result) const final;
-
-  std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                   const std::string &field_name) const final;
-
-  std::string gen_additional_function(const std::string &function_name, const tl::tl_combinator *t,
-                                      bool is_function) const final;
-  std::string gen_additional_proxy_function_begin(const std::string &function_name, const tl::tl_type *type,
-                                                  const std::string &class_name, int arity,
-                                                  bool is_function) const final;
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl::tl_type *type,
-                                                 const std::string &class_name, int arity) const final;
-  std::string gen_additional_proxy_function_case(const std::string &function_name, const tl::tl_type *type,
-                                                 const tl::tl_combinator *t, int arity, bool is_function) const final;
-  std::string gen_additional_proxy_function_end(const std::string &function_name, const tl::tl_type *type,
-                                                bool is_function) const final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_td.cpp b/third-party/td/td/td/generate/tl_writer_td.cpp
deleted file mode 100644
index 562cc25e5c..0000000000
--- a/third-party/td/td/td/generate/tl_writer_td.cpp
+++ /dev/null
@@ -1,297 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "tl_writer_td.h"
-
-#include <cassert>
-
-namespace td {
-
-const int TD_TL_writer::MAX_ARITY;
-
-const std::string TD_TL_writer::base_type_class_names[MAX_ARITY + 1] = {"Object"};
-const std::string TD_TL_writer::base_tl_class_name = "TlObject";
-const std::string TD_TL_writer::base_function_class_name = "Function";
-
-int TD_TL_writer::get_max_arity() const {
-  return MAX_ARITY;
-}
-
-bool TD_TL_writer::is_built_in_simple_type(const std::string &name) const {
-  return name == "True" || name == "Bool" || name == "Int" || name == "Long" || name == "Double" || name == "String" ||
-         name == "Int32" || name == "Int53" || name == "Int64" || name == "Int128" || name == "Int256" ||
-         name == "Int512" || name == "Bytes" || name == "SecureString" || name == "SecureBytes";
-}
-
-bool TD_TL_writer::is_built_in_complex_type(const std::string &name) const {
-  return name == "Vector";
-}
-
-bool TD_TL_writer::is_type_bare(const tl::tl_type *t) const {
-  return t->simple_constructors <= 1 || (is_built_in_simple_type(t->name) && t->name != "Bool") ||
-         is_built_in_complex_type(t->name);
-}
-
-bool TD_TL_writer::is_combinator_supported(const tl::tl_combinator *constructor) const {
-  if (!TL_writer::is_combinator_supported(constructor)) {
-    return false;
-  }
-
-  for (std::size_t i = 0; i < constructor->args.size(); i++) {
-    if (constructor->args[i].type->get_type() == tl::NODE_TYPE_VAR_TYPE) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-bool TD_TL_writer::is_default_constructor_generated(const tl::tl_combinator *t, bool can_be_parsed,
-                                                    bool can_be_stored) const {
-  return tl_name == "td_api" || tl_name == "TdApi" || (t->var_count > 0 && can_be_parsed) || t->name == "updates";
-}
-
-bool TD_TL_writer::is_full_constructor_generated(const tl::tl_combinator *t, bool can_be_parsed,
-                                                 bool can_be_stored) const {
-  return tl_name == "td_api" || tl_name == "TdApi" || can_be_stored || t->name == "phone.groupParticipants" ||
-         t->name == "user" || t->name == "userProfilePhoto" || t->name == "channelForbidden" || t->name == "message" ||
-         t->name == "photoSizeEmpty" || t->name == "photoSize" || t->name == "photoCachedSize" ||
-         t->name == "document" || t->name == "updateDeleteMessages" || t->name == "updateEditChannelMessage" ||
-         t->name == "encryptedChatWaiting" || t->name == "encryptedChatRequested" || t->name == "encryptedChat" ||
-         t->name == "langPackString" || t->name == "langPackStringPluralized" || t->name == "langPackStringDeleted" ||
-         t->name == "peerUser" || t->name == "peerChat" || t->name == "updateServiceNotification" ||
-         t->name == "updateNewMessage" || t->name == "updateChannelTooLong" || t->name == "messages.stickerSet" ||
-         t->name == "updates.differenceSlice" || t->name == "contacts.contactBirthdays";
-}
-
-int TD_TL_writer::get_storer_type(const tl::tl_combinator *t, const std::string &storer_name) const {
-  return storer_name == "TlStorerToString";
-}
-
-tl::TL_writer::Mode TD_TL_writer::get_parser_mode(int type) const {
-  if (tl_name == "td_api") {
-#ifndef TD_ENABLE_JNI  // we need to parse all types in order to implement toString
-    return Server;
-#endif
-  }
-  if (tl_name == "telegram_api") {
-    return Client;
-  }
-  return All;
-}
-
-tl::TL_writer::Mode TD_TL_writer::get_storer_mode(int type) const {
-  if (type == 1) {
-    return All;
-  }
-
-  if (tl_name == "td_api") {
-    return Server;
-  }
-  if (tl_name == "telegram_api") {
-    return Client;
-  }
-  return All;
-}
-
-std::vector<std::string> TD_TL_writer::get_parsers() const {
-  std::vector<std::string> parsers;
-  if (tl_name == "telegram_api") {
-    parsers.push_back("TlBufferParser");
-  } else if (tl_name == "mtproto_api" || tl_name == "secret_api" || tl_name == "e2e_api") {
-    parsers.push_back("TlParser");
-  }
-  return parsers;
-}
-
-std::vector<std::string> TD_TL_writer::get_storers() const {
-  std::vector<std::string> storers;
-  if (tl_name == "telegram_api" || tl_name == "mtproto_api" || tl_name == "secret_api" || tl_name == "e2e_api") {
-    storers.push_back("TlStorerCalcLength");
-    storers.push_back("TlStorerUnsafe");
-  }
-  storers.push_back("TlStorerToString");
-  return storers;
-}
-
-std::string TD_TL_writer::gen_import_declaration(const std::string &name, bool is_system) const {
-  if (is_system) {
-    return "#include <" + name + ">\n";
-  } else {
-    return "#include \"" + name + "\"\n";
-  }
-}
-
-std::string TD_TL_writer::gen_package_suffix() const {
-  return ".h";
-}
-
-std::string TD_TL_writer::gen_base_tl_class_name() const {
-  return base_tl_class_name;
-}
-
-std::string TD_TL_writer::gen_base_type_class_name(int arity) const {
-  assert(arity == 0);
-  return base_type_class_names[arity];
-}
-
-std::string TD_TL_writer::gen_base_function_class_name() const {
-  return base_function_class_name;
-}
-
-std::string TD_TL_writer::gen_class_name(std::string name) const {
-  if (name == "Object") {
-    assert(false);
-  }
-  if (name == "#") {
-    return "int32";
-  }
-  for (std::size_t i = 0; i < name.size(); i++) {
-    if (!is_alnum(name[i])) {
-      name[i] = '_';
-    }
-  }
-  return name;
-}
-
-std::string TD_TL_writer::gen_field_name(std::string name) const {
-  for (std::size_t i = 0; i < name.size(); i++) {
-    if (!is_alnum(name[i])) {
-      name[i] = '_';
-    }
-  }
-  assert(!name.empty());
-  assert(name[name.size() - 1] != '_');
-  return name + '_';
-}
-
-std::string TD_TL_writer::gen_var_name(const tl::var_description &desc) const {
-  assert(!desc.is_type);
-
-  if (desc.parameter_num != -1) {
-    assert(false);
-  }
-  return "var" + int_to_string(desc.index);
-}
-
-std::string TD_TL_writer::gen_parameter_name(int index) const {
-  assert(false);
-  return std::string();
-}
-
-std::string TD_TL_writer::gen_type_name(const tl::tl_tree_type *tree_type) const {
-  const tl::tl_type *t = tree_type->type;
-  const std::string &name = t->name;
-
-  if (name == "#") {
-    return "int32";
-  }
-  if (name == "True") {
-    return "bool";
-  }
-  if (name == "Bool") {
-    return "bool";
-  }
-  if (name == "Int" || name == "Int32") {
-    return "int32";
-  }
-  if (name == "Int53") {
-    return "int53";
-  }
-  if (name == "Long" || name == "Int64") {
-    return "int64";
-  }
-  if (name == "Double") {
-    return "double";
-  }
-  if (name == "String") {
-    return "string";
-  }
-  if (name == "Int128") {
-    return "UInt128";
-  }
-  if (name == "Int256") {
-    return "UInt256";
-  }
-  if (name == "Int512") {
-    return "UInt512";
-  }
-  if (name == "Bytes") {
-    return "bytes";
-  }
-  if (name == "SecureString") {
-    return "secure_string";
-  }
-  if (name == "SecureBytes") {
-    return "secure_bytes";
-  }
-
-  if (name == "Vector") {
-    assert(t->arity == 1);
-    assert(tree_type->children.size() == 1);
-    assert(tree_type->children[0]->get_type() == tl::NODE_TYPE_TYPE);
-    const tl::tl_tree_type *child = static_cast<const tl::tl_tree_type *>(tree_type->children[0]);
-
-    return "array<" + gen_type_name(child) + ">";
-  }
-
-  assert(!is_built_in_simple_type(name) && !is_built_in_complex_type(name));
-
-  for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-    assert(tree_type->children[i]->get_type() == tl::NODE_TYPE_NAT_CONST);
-  }
-
-  return "object_ptr<" + gen_main_class_name(t) + ">";
-}
-
-std::string TD_TL_writer::gen_array_type_name(const tl::tl_tree_array *arr, const std::string &field_name) const {
-  assert(false);
-  return std::string();
-}
-
-std::string TD_TL_writer::gen_var_type_name() const {
-  return "object_ptr<" + gen_base_function_class_name() + ">";
-}
-
-std::string TD_TL_writer::gen_int_const(const tl::tl_tree *tree_c, const std::vector<tl::var_description> &vars) const {
-  assert(false);
-  return std::string();
-}
-
-std::string TD_TL_writer::gen_constructor_parameter(int field_num, const std::string &class_name, const tl::arg &a,
-                                                    bool is_default) const {
-  if (is_default) {
-    return "";
-  }
-
-  std::string field_type = gen_field_type(a);
-  if (field_type.empty()) {
-    return "";
-  }
-
-  if (field_type[field_type.size() - 1] != ' ') {
-    field_type += ' ';
-  }
-
-  std::string res = (field_num == 0 ? "" : ", ");
-  if (field_type == "bool " || field_type == "int32 " || field_type == "int53 " || field_type == "int64 " ||
-      field_type == "double ") {
-    res += field_type;
-  } else if (field_type == "UInt128 " || field_type == "UInt256 " || field_type == "UInt512 " ||
-             field_type == "string " || (string_type == bytes_type && field_type == "bytes ") ||
-             field_type == "secure_string " || (string_type == bytes_type && field_type == "secure_bytes ")) {
-    res += field_type + "const &";
-  } else if (field_type.compare(0, 5, "array") == 0 || field_type == "bytes " || field_type == "secure_bytes " ||
-             field_type.compare(0, 10, "object_ptr") == 0) {
-    res += field_type + "&&";
-  } else {
-    assert(false && "unreachable");
-  }
-
-  return res + gen_field_name(a.name);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/generate/tl_writer_td.h b/third-party/td/td/td/generate/tl_writer_td.h
deleted file mode 100644
index 6eab3086e6..0000000000
--- a/third-party/td/td/td/generate/tl_writer_td.h
+++ /dev/null
@@ -1,67 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_writer.h"
-
-#include <string>
-#include <vector>
-
-namespace td {
-
-class TD_TL_writer : public tl::TL_writer {
-  static const int MAX_ARITY = 0;
-
-  static const std::string base_type_class_names[MAX_ARITY + 1];
-  static const std::string base_tl_class_name;
-  static const std::string base_function_class_name;
-
- protected:
-  const std::string string_type;
-  const std::string bytes_type;
-
- public:
-  TD_TL_writer(const std::string &tl_name, const std::string &string_type, const std::string &bytes_type)
-      : TL_writer(tl_name), string_type(string_type), bytes_type(bytes_type) {
-  }
-
-  int get_max_arity() const override;
-
-  bool is_built_in_simple_type(const std::string &name) const override;
-  bool is_built_in_complex_type(const std::string &name) const override;
-  bool is_type_bare(const tl::tl_type *t) const override;
-  bool is_combinator_supported(const tl::tl_combinator *constructor) const override;
-  bool is_default_constructor_generated(const tl::tl_combinator *t, bool can_be_parsed,
-                                        bool can_be_stored) const override;
-  bool is_full_constructor_generated(const tl::tl_combinator *t, bool can_be_parsed, bool can_be_stored) const override;
-
-  int get_storer_type(const tl::tl_combinator *t, const std::string &storer_name) const override;
-  Mode get_parser_mode(int type) const override;
-  Mode get_storer_mode(int type) const override;
-  std::vector<std::string> get_parsers() const override;
-  std::vector<std::string> get_storers() const override;
-
-  std::string gen_import_declaration(const std::string &package_name, bool is_system) const override;
-  std::string gen_package_suffix() const override;
-  std::string gen_base_tl_class_name() const override;
-  std::string gen_base_type_class_name(int arity) const override;
-  std::string gen_base_function_class_name() const override;
-  std::string gen_class_name(std::string name) const override;
-  std::string gen_field_name(std::string name) const override;
-  std::string gen_var_name(const tl::var_description &desc) const override;
-  std::string gen_parameter_name(int index) const override;
-  std::string gen_type_name(const tl::tl_tree_type *tree_type) const override;
-  std::string gen_array_type_name(const tl::tl_tree_array *arr, const std::string &field_name) const override;
-  std::string gen_var_type_name() const override;
-
-  std::string gen_int_const(const tl::tl_tree *tree_c, const std::vector<tl::var_description> &vars) const override;
-
-  std::string gen_constructor_parameter(int field_num, const std::string &class_name, const tl::arg &a,
-                                        bool is_default) const override;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/AuthData.cpp b/third-party/td/td/td/mtproto/AuthData.cpp
deleted file mode 100644
index fad59fbe9a..0000000000
--- a/third-party/td/td/td/mtproto/AuthData.cpp
+++ /dev/null
@@ -1,178 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/AuthData.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-#include <algorithm>
-
-namespace td {
-namespace mtproto {
-
-Status check_message_id_duplicates(MessageId *saved_message_ids, size_t max_size, size_t &end_pos,
-                                   MessageId message_id) {
-  // In addition, the identifiers (msg_id) of the last N messages received from the other side must be stored, and if
-  // a message comes in with msg_id lower than all or equal to any of the stored values, that message is to be
-  // ignored. Otherwise, the new message msg_id is added to the set, and, if the number of stored msg_id values is
-  // greater than N, the oldest (i.e. the lowest) is forgotten.
-  if (end_pos == 2 * max_size) {
-    std::copy_n(&saved_message_ids[max_size], max_size, &saved_message_ids[0]);
-    end_pos = max_size;
-  }
-  if (end_pos == 0 || message_id > saved_message_ids[end_pos - 1]) {
-    // fast path
-    saved_message_ids[end_pos++] = message_id;
-    return Status::OK();
-  }
-  if (end_pos >= max_size && message_id < saved_message_ids[0]) {
-    return Status::Error(
-        2, PSLICE() << "Ignore very old " << message_id << " older than the oldest known " << saved_message_ids[0]);
-  }
-  auto it = std::lower_bound(&saved_message_ids[0], &saved_message_ids[end_pos], message_id);
-  if (*it == message_id) {
-    return Status::Error(1, PSLICE() << "Ignore already processed " << message_id);
-  }
-  std::copy_backward(it, &saved_message_ids[end_pos], &saved_message_ids[end_pos + 1]);
-  *it = message_id;
-  ++end_pos;
-  return Status::OK();
-}
-
-AuthData::AuthData() {
-  server_salt_.salt = Random::secure_int64();
-  server_salt_.valid_since = -1e10;
-  server_salt_.valid_until = -1e10;
-}
-
-bool AuthData::is_ready(double now) {
-  if (!has_main_auth_key()) {
-    LOG(INFO) << "Need main auth key";
-    return false;
-  }
-  if (use_pfs() && !has_tmp_auth_key(now)) {
-    LOG(INFO) << "Need tmp auth key";
-    return false;
-  }
-  if (!has_salt(now)) {
-    LOG(INFO) << "Need salt";
-    return false;
-  }
-  return true;
-}
-
-bool AuthData::update_server_time_difference(double diff) {
-  if (!server_time_difference_was_updated_) {
-    LOG(DEBUG) << "Set server time difference: " << server_time_difference_ << " -> " << diff;
-    server_time_difference_was_updated_ = true;
-    server_time_difference_ = diff;
-  } else if (server_time_difference_ + 1e-4 < diff) {
-    LOG(DEBUG) << "Update server time difference: " << server_time_difference_ << " -> " << diff;
-    server_time_difference_ = diff;
-  } else {
-    return false;
-  }
-  LOG(DEBUG) << "New server time: " << get_server_time(Time::now_cached());
-  return true;
-}
-
-void AuthData::reset_server_time_difference(double diff) {
-  LOG(DEBUG) << "Reset server time difference: " << server_time_difference_ << " -> " << diff;
-  server_time_difference_was_updated_ = false;
-  server_time_difference_ = diff;
-}
-
-void AuthData::set_future_salts(const std::vector<ServerSalt> &salts, double now) {
-  if (salts.empty()) {
-    return;
-  }
-  future_salts_ = salts;
-  std::sort(future_salts_.begin(), future_salts_.end(),
-            [](const ServerSalt &a, const ServerSalt &b) { return a.valid_since > b.valid_since; });
-  update_salt(now);
-}
-
-std::vector<ServerSalt> AuthData::get_future_salts() const {
-  auto res = future_salts_;
-  res.push_back(server_salt_);
-  return res;
-}
-
-MessageId AuthData::next_message_id(double now) {
-  double server_time = get_server_time(now);
-  auto t = static_cast<uint64>(server_time * (static_cast<uint64>(1) << 32));
-
-  // randomize lower bits for clocks with low precision
-  // TODO(perf) do not do this for systems with good precision?..
-  auto rx = Random::secure_int32();
-  auto to_xor = rx & ((1 << 22) - 1);
-
-  t ^= to_xor;
-  auto result = MessageId(t & static_cast<uint64>(-4));
-  if (last_message_id_ >= result) {
-    auto to_mul = ((rx >> 22) & 1023) + 1;
-    result = MessageId(last_message_id_.get() + 8 * to_mul);
-  }
-  LOG(DEBUG) << "Create identifier for " << result << " at " << now;
-  last_message_id_ = result;
-  return result;
-}
-
-bool AuthData::is_valid_outbound_msg_id(MessageId message_id, double now) const {
-  double server_time = get_server_time(now);
-  auto id_time = static_cast<double>(message_id.get()) / static_cast<double>(static_cast<uint64>(1) << 32);
-  return server_time - 150 < id_time && id_time < server_time + 30;
-}
-
-bool AuthData::is_valid_inbound_msg_id(MessageId message_id, double now) const {
-  double server_time = get_server_time(now);
-  auto id_time = static_cast<double>(message_id.get()) / static_cast<double>(static_cast<uint64>(1) << 32);
-  return server_time - 300 < id_time && id_time < server_time + 30;
-}
-
-Status AuthData::check_packet(uint64 session_id, MessageId message_id, double now, bool &time_difference_was_updated) {
-  // Client is to check that the session_id field in the decrypted message indeed equals to that of an active session
-  // created by the client.
-  if (get_session_id() != session_id) {
-    return Status::Error(PSLICE() << "Receive packet from different session " << session_id << " in session "
-                                  << get_session_id());
-  }
-
-  // Client must check that msg_id has even parity for messages from client to server, and odd parity for messages
-  // from server to client.
-  if ((message_id.get() & 1) == 0) {
-    return Status::Error(PSLICE() << "Receive invalid " << message_id);
-  }
-
-  TRY_STATUS(duplicate_checker_.check(message_id));
-
-  LOG(DEBUG) << "Receive packet in " << message_id << " from session " << session_id << " at " << now;
-  time_difference_was_updated = update_server_time_difference(static_cast<uint32>(message_id.get() >> 32) - now);
-
-  // In addition, msg_id values that belong over 30 seconds in the future or over 300 seconds in the past are to be
-  // ignored (recall that msg_id approximately equals unixtime * 2^32). This is especially important for the server.
-  // The client would also find this useful (to protect from a replay attack), but only if it is certain of its time
-  // (for example, if its time has been synchronized with that of the server).
-  if (server_time_difference_was_updated_ && !is_valid_inbound_msg_id(message_id, now)) {
-    return Status::Error(PSLICE() << "Ignore too old or too new " << message_id);
-  }
-
-  return Status::OK();
-}
-
-void AuthData::update_salt(double now) {
-  double server_time = get_server_time(now);
-  while (!future_salts_.empty() && (future_salts_.back().valid_since < server_time)) {
-    server_salt_ = future_salts_.back();
-    future_salts_.pop_back();
-  }
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/AuthData.h b/third-party/td/td/td/mtproto/AuthData.h
deleted file mode 100644
index d7458a6f4b..0000000000
--- a/third-party/td/td/td/mtproto/AuthData.h
+++ /dev/null
@@ -1,295 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/MessageId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <array>
-
-namespace td {
-namespace mtproto {
-
-struct ServerSalt {
-  int64 salt;
-  double valid_since;
-  double valid_until;
-};
-
-template <class StorerT>
-void store(const ServerSalt &salt, StorerT &storer) {
-  storer.template store_binary<int64>(salt.salt);
-  storer.template store_binary<double>(salt.valid_since);
-  storer.template store_binary<double>(salt.valid_until);
-}
-
-template <class ParserT>
-void parse(ServerSalt &salt, ParserT &parser) {
-  salt.salt = parser.fetch_long();
-  salt.valid_since = parser.fetch_double();
-  salt.valid_until = parser.fetch_double();
-}
-
-Status check_message_id_duplicates(MessageId *saved_message_ids, size_t max_size, size_t &end_pos,
-                                   MessageId message_id);
-
-template <size_t max_size>
-class MessageIdDuplicateChecker {
- public:
-  Status check(MessageId message_id) {
-    return check_message_id_duplicates(&saved_message_ids_[0], max_size, end_pos_, message_id);
-  }
-
- private:
-  std::array<MessageId, 2 * max_size> saved_message_ids_;
-  size_t end_pos_ = 0;
-};
-
-class AuthData {
- public:
-  AuthData();
-  AuthData(const AuthData &) = default;
-  AuthData &operator=(const AuthData &) = delete;
-  AuthData(AuthData &&) = delete;
-  AuthData &operator=(AuthData &&) = delete;
-  ~AuthData() = default;
-
-  bool is_ready(double now);
-
-  void set_main_auth_key(AuthKey auth_key) {
-    main_auth_key_ = std::move(auth_key);
-  }
-  void break_main_auth_key() {
-    main_auth_key_.break_key();
-  }
-  const AuthKey &get_main_auth_key() const {
-    // CHECK(has_main_auth_key());
-    return main_auth_key_;
-  }
-  bool has_main_auth_key() const {
-    return !main_auth_key_.empty();
-  }
-  bool need_main_auth_key() const {
-    return !has_main_auth_key();
-  }
-
-  void set_tmp_auth_key(AuthKey auth_key) {
-    CHECK(!auth_key.empty());
-    tmp_auth_key_ = std::move(auth_key);
-  }
-  const AuthKey &get_tmp_auth_key() const {
-    return tmp_auth_key_;
-  }
-  bool was_tmp_auth_key() const {
-    return use_pfs() && !tmp_auth_key_.empty();
-  }
-  bool need_tmp_auth_key(double now, double refresh_margin) const {
-    if (!use_pfs()) {
-      return false;
-    }
-    if (tmp_auth_key_.empty()) {
-      return true;
-    }
-    if (now > tmp_auth_key_.expires_at() - refresh_margin) {
-      return true;
-    }
-    return false;
-  }
-  void drop_main_auth_key() {
-    main_auth_key_ = AuthKey();
-  }
-  void drop_tmp_auth_key() {
-    tmp_auth_key_ = AuthKey();
-  }
-  bool has_tmp_auth_key(double now) const {
-    if (!use_pfs()) {
-      return false;
-    }
-    if (tmp_auth_key_.empty()) {
-      return false;
-    }
-    if (now > tmp_auth_key_.expires_at()) {
-      return false;
-    }
-    return true;
-  }
-
-  const AuthKey &get_auth_key() const {
-    if (use_pfs()) {
-      return get_tmp_auth_key();
-    }
-    return get_main_auth_key();
-  }
-  bool has_auth_key(double now) const {
-    if (use_pfs()) {
-      return has_tmp_auth_key(now);
-    }
-    return has_main_auth_key();
-  }
-
-  bool get_auth_flag() const {
-    return main_auth_key_.auth_flag();
-  }
-  void set_auth_flag(bool auth_flag) {
-    main_auth_key_.set_auth_flag(auth_flag);
-    if (!auth_flag) {
-      drop_tmp_auth_key();
-    }
-  }
-
-  bool get_bind_flag() const {
-    return !use_pfs() || tmp_auth_key_.auth_flag();
-  }
-  void on_bind() {
-    CHECK(use_pfs());
-    tmp_auth_key_.set_auth_flag(true);
-  }
-
-  Slice get_header() const {
-    if (use_pfs()) {
-      return tmp_auth_key_.need_header() ? Slice(header_) : Slice();
-    } else {
-      return main_auth_key_.need_header() ? Slice(header_) : Slice();
-    }
-  }
-
-  void set_header(std::string header) {
-    header_ = std::move(header);
-  }
-
-  void on_api_response() {
-    if (use_pfs()) {
-      tmp_auth_key_.remove_header();
-    } else {
-      main_auth_key_.remove_header();
-    }
-  }
-
-  void on_connection_not_inited() {
-    if (use_pfs()) {
-      tmp_auth_key_.restore_header();
-    } else {
-      main_auth_key_.restore_header();
-    }
-  }
-
-  void set_session_id(uint64 session_id) {
-    session_id_ = session_id;
-  }
-  uint64 get_session_id() const {
-    CHECK(session_id_ != 0);
-    return session_id_;
-  }
-
-  double get_server_time(double now) const {
-    return server_time_difference_ + now;
-  }
-
-  double get_server_time_difference() const {
-    return server_time_difference_;
-  }
-
-  // diff == msg_id / 2^32 - now == old_server_now - now <= server_now - now
-  // server_time_difference >= max{diff}
-  bool update_server_time_difference(double diff);
-
-  void reset_server_time_difference(double diff);
-
-  uint64 get_server_salt(double now) {
-    update_salt(now);
-    return server_salt_.salt;
-  }
-
-  void set_server_salt(uint64 salt, double now) {
-    server_salt_.salt = salt;
-    double server_time = get_server_time(now);
-    server_salt_.valid_since = server_time;
-    server_salt_.valid_until = server_time + 60 * 10;
-    future_salts_.clear();
-  }
-
-  bool is_server_salt_valid(double now) const {
-    return server_salt_.valid_until > get_server_time(now) + 60;
-  }
-
-  bool has_salt(double now) {
-    update_salt(now);
-    return is_server_salt_valid(now);
-  }
-
-  bool need_future_salts(double now) {
-    update_salt(now);
-    return future_salts_.empty() || !is_server_salt_valid(now);
-  }
-
-  void set_future_salts(const std::vector<ServerSalt> &salts, double now);
-
-  std::vector<ServerSalt> get_future_salts() const;
-
-  MessageId next_message_id(double now);
-
-  bool is_valid_outbound_msg_id(MessageId message_id, double now) const;
-
-  bool is_valid_inbound_msg_id(MessageId message_id, double now) const;
-
-  Status check_packet(uint64 session_id, MessageId message_id, double now, bool &time_difference_was_updated);
-
-  Status check_update(MessageId message_id) {
-    return updates_duplicate_checker_.check(message_id);
-  }
-
-  Status recheck_update(MessageId message_id) {
-    return updates_duplicate_rechecker_.check(message_id);
-  }
-
-  int32 next_seq_no(bool is_content_related) {
-    int32 res = seq_no_;
-    if (is_content_related) {
-      res |= 1;
-      seq_no_ += 2;
-    }
-    return res;
-  }
-
-  void clear_seq_no() {
-    seq_no_ = 0;
-  }
-
-  void set_use_pfs(bool use_pfs) {
-    use_pfs_ = use_pfs;
-  }
-  bool use_pfs() const {
-    return use_pfs_;
-  }
-
- private:
-  bool use_pfs_ = true;
-  AuthKey main_auth_key_;
-  AuthKey tmp_auth_key_;
-  bool server_time_difference_was_updated_ = false;
-  double server_time_difference_ = 0;
-  ServerSalt server_salt_;
-  MessageId last_message_id_;
-  int32 seq_no_ = 0;
-  string header_;
-  uint64 session_id_ = 0;
-
-  std::vector<ServerSalt> future_salts_;
-
-  MessageIdDuplicateChecker<1000> duplicate_checker_;
-  MessageIdDuplicateChecker<1000> updates_duplicate_checker_;
-  MessageIdDuplicateChecker<100> updates_duplicate_rechecker_;
-
-  void update_salt(double now);
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/AuthKey.h b/third-party/td/td/td/mtproto/AuthKey.h
deleted file mode 100644
index 291833cf41..0000000000
--- a/third-party/td/td/td/mtproto/AuthKey.h
+++ /dev/null
@@ -1,134 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/Time.h"
-
-namespace td {
-namespace mtproto {
-
-class AuthKey {
- public:
-  AuthKey() = default;
-  AuthKey(uint64 auth_key_id, string &&auth_key) : auth_key_id_(auth_key_id), auth_key_(auth_key) {
-  }
-  void break_key() {
-    auth_key_id_++;
-    auth_key_[0]++;
-  }
-
-  bool empty() const {
-    return auth_key_.empty();
-  }
-  const string &key() const {
-    return auth_key_;
-  }
-  uint64 id() const {
-    return auth_key_id_;
-  }
-  bool auth_flag() const {
-    return auth_flag_;
-  }
-  void set_auth_flag(bool new_auth_flag) {
-    auth_flag_ = new_auth_flag;
-  }
-
-  bool need_header() const {
-    return have_header_ || Time::now() < header_expires_at_;
-  }
-  void remove_header() {
-    if (auth_flag_ && have_header_) {
-      have_header_ = false;
-      header_expires_at_ = Time::now() + 3;
-    }
-  }
-  void restore_header() {
-    have_header_ = true;
-  }
-
-  double expires_at() const {
-    return expires_at_;
-  }
-  double created_at() const {
-    return created_at_;
-  }
-
-  void set_expires_at(double expires_at) {
-    expires_at_ = expires_at;
-  }
-  void set_created_at(double created_at) {
-    created_at_ = created_at;
-  }
-  void clear() {
-    auth_key_.clear();
-  }
-
-  static constexpr int32 AUTH_FLAG = 1;
-  static constexpr int32 HAS_CREATED_AT = 4;
-  static constexpr int32 HAS_EXPIRES_AT = 8;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_binary(auth_key_id_);
-    bool has_created_at = created_at_ != 0;
-    bool has_expires_at = expires_at_ != 0;
-    int32 flags = 0;
-    if (auth_flag_) {
-      flags |= AUTH_FLAG;
-    }
-    if (has_created_at) {
-      flags |= HAS_CREATED_AT;
-    }
-    if (has_expires_at) {
-      flags |= HAS_EXPIRES_AT;
-    }
-    storer.store_binary(flags);
-    storer.store_string(auth_key_);
-    if (has_created_at) {
-      storer.store_binary(created_at_);
-    }
-    if (has_expires_at) {
-      double time_left = max(expires_at_ - Time::now(), 0.0);
-      storer.store_binary(time_left);
-      storer.store_binary(Clocks::system());
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    auth_key_id_ = parser.fetch_long();
-    auto flags = parser.fetch_int();
-    auth_flag_ = (flags & AUTH_FLAG) != 0;
-    auth_key_ = parser.template fetch_string<string>();
-    if ((flags & HAS_CREATED_AT) != 0) {
-      created_at_ = parser.fetch_double();
-    }
-    if ((flags & HAS_EXPIRES_AT) != 0) {
-      double time_left = parser.fetch_double();
-      double old_server_time = parser.fetch_double();
-      double passed_server_time = max(Clocks::system() - old_server_time, 0.0);
-      time_left = max(time_left - passed_server_time, 0.0);
-      expires_at_ = Time::now() + time_left;
-    }
-    // just in case
-    have_header_ = true;
-  }
-
- private:
-  uint64 auth_key_id_{0};
-  string auth_key_;
-  bool auth_flag_{false};
-  bool have_header_{true};
-  double header_expires_at_{0};
-  double expires_at_{0};
-  double created_at_{0};
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/ConnectionManager.cpp b/third-party/td/td/td/mtproto/ConnectionManager.cpp
deleted file mode 100644
index 20fb28a582..0000000000
--- a/third-party/td/td/td/mtproto/ConnectionManager.cpp
+++ /dev/null
@@ -1,37 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/ConnectionManager.h"
-
-namespace td {
-namespace mtproto {
-
-void ConnectionManager::inc_connect() {
-  auto &cnt = get_link_token() == 1 ? connect_cnt_ : connect_proxy_cnt_;
-  cnt++;
-  if (cnt == 1) {
-    loop();
-  }
-}
-
-void ConnectionManager::dec_connect() {
-  auto &cnt = get_link_token() == 1 ? connect_cnt_ : connect_proxy_cnt_;
-  CHECK(cnt > 0);
-  cnt--;
-  if (cnt == 0) {
-    loop();
-  }
-}
-
-ConnectionManager::ConnectionToken ConnectionManager::connection_impl(ActorId<ConnectionManager> connection_manager,
-                                                                      int mode) {
-  auto actor = ActorShared<ConnectionManager>(connection_manager, mode);
-  send_closure(actor, &ConnectionManager::inc_connect);
-  return ConnectionToken(std::move(actor));
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/ConnectionManager.h b/third-party/td/td/td/mtproto/ConnectionManager.h
deleted file mode 100644
index 0958711123..0000000000
--- a/third-party/td/td/td/mtproto/ConnectionManager.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-namespace mtproto {
-
-class ConnectionManager : public Actor {
- public:
-  class ConnectionToken {
-   public:
-    ConnectionToken() = default;
-    explicit ConnectionToken(ActorShared<ConnectionManager> connection_manager)
-        : connection_manager_(std::move(connection_manager)) {
-    }
-    ConnectionToken(const ConnectionToken &) = delete;
-    ConnectionToken &operator=(const ConnectionToken &) = delete;
-    ConnectionToken(ConnectionToken &&) = default;
-    ConnectionToken &operator=(ConnectionToken &&other) noexcept {
-      reset();
-      connection_manager_ = std::move(other.connection_manager_);
-      return *this;
-    }
-    ~ConnectionToken() {
-      reset();
-    }
-
-    void reset() {
-      if (!connection_manager_.empty()) {
-        send_closure(connection_manager_, &ConnectionManager::dec_connect);
-        connection_manager_.reset();
-      }
-    }
-
-    bool empty() const {
-      return connection_manager_.empty();
-    }
-
-   private:
-    ActorShared<ConnectionManager> connection_manager_;
-  };
-
-  static ConnectionToken connection(ActorId<ConnectionManager> connection_manager) {
-    return connection_impl(connection_manager, 1);
-  }
-  static ConnectionToken connection_proxy(ActorId<ConnectionManager> connection_manager) {
-    return connection_impl(connection_manager, 2);
-  }
-
- protected:
-  uint32 connect_cnt_ = 0;
-  uint32 connect_proxy_cnt_ = 0;
-
- private:
-  void inc_connect();
-  void dec_connect();
-
-  static ConnectionToken connection_impl(ActorId<ConnectionManager> connection_manager, int mode);
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/CryptoStorer.h b/third-party/td/td/td/mtproto/CryptoStorer.h
deleted file mode 100644
index b094dccd14..0000000000
--- a/third-party/td/td/td/mtproto/CryptoStorer.h
+++ /dev/null
@@ -1,371 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/MessageId.h"
-#include "td/mtproto/MtprotoQuery.h"
-#include "td/mtproto/PacketStorer.h"
-#include "td/mtproto/utils.h"
-
-#include "td/mtproto/mtproto_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/Time.h"
-
-namespace td {
-namespace mtproto_api {
-class msg_container {
- public:
-  static const int32 ID = 0x73f1f8dc;
-};
-}  // namespace mtproto_api
-
-namespace mtproto {
-
-template <class Object, class ObjectStorer>
-class ObjectImpl {
- public:
-  ObjectImpl(bool not_empty, Object &&object, AuthData *auth_data)
-      : not_empty_(not_empty), object_(std::move(object)), object_storer_(object_) {
-    if (empty()) {
-      return;
-    }
-    message_id_ = auth_data->next_message_id(Time::now_cached());
-    seq_no_ = auth_data->next_seq_no(false);
-  }
-  template <class StorerT>
-  void do_store(StorerT &storer) const {
-    if (empty()) {
-      return;
-    }
-    storer.store_binary(message_id_);
-    storer.store_binary(seq_no_);
-    storer.store_binary(static_cast<int32>(object_storer_.size()));
-    storer.store_storer(object_storer_);
-  }
-  bool not_empty() const {
-    return not_empty_;
-  }
-  bool empty() const {
-    return !not_empty_;
-  }
-  MessageId get_message_id() const {
-    return message_id_;
-  }
-
- private:
-  bool not_empty_;
-  Object object_;
-  ObjectStorer object_storer_;
-  MessageId message_id_;
-  int32 seq_no_;
-};
-
-using AckImpl = ObjectImpl<mtproto_api::msgs_ack, TLObjectStorer<mtproto_api::msgs_ack>>;
-using PingImpl = ObjectImpl<mtproto_api::ping_delay_disconnect, TLStorer<mtproto_api::ping_delay_disconnect>>;
-using HttpWaitImpl = ObjectImpl<mtproto_api::http_wait, TLStorer<mtproto_api::http_wait>>;
-using GetFutureSaltsImpl = ObjectImpl<mtproto_api::get_future_salts, TLStorer<mtproto_api::get_future_salts>>;
-using ResendImpl = ObjectImpl<mtproto_api::msg_resend_req, TLObjectStorer<mtproto_api::msg_resend_req>>;
-using CancelImpl = ObjectImpl<mtproto_api::rpc_drop_answer, TLStorer<mtproto_api::rpc_drop_answer>>;
-using GetInfoImpl = ObjectImpl<mtproto_api::msgs_state_req, TLObjectStorer<mtproto_api::msgs_state_req>>;
-using DestroyAuthKeyImpl = ObjectImpl<mtproto_api::destroy_auth_key, TLStorer<mtproto_api::destroy_auth_key>>;
-
-class CancelVectorImpl {
- public:
-  CancelVectorImpl(bool not_empty, const vector<int64> &to_cancel, AuthData *auth_data) {
-    storers_.reserve(to_cancel.size());
-    for (auto &request_id : to_cancel) {
-      storers_.emplace_back(true, mtproto_api::rpc_drop_answer(request_id), auth_data);
-    }
-  }
-
-  template <class StorerT>
-  void do_store(StorerT &storer) const {
-    for (auto &s : storers_) {
-      storer.store_storer(s);
-    }
-  }
-  bool not_empty() const {
-    return !storers_.empty();
-  }
-  MessageId get_message_id() const {
-    CHECK(storers_.size() == 1);
-    return storers_[0].get_message_id();
-  }
-
- private:
-  vector<PacketStorer<CancelImpl>> storers_;
-};
-
-class InvokeAfter {
- public:
-  explicit InvokeAfter(Span<MessageId> message_ids) : message_ids_(message_ids) {
-  }
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    if (message_ids_.empty()) {
-      return;
-    }
-    if (message_ids_.size() == 1) {
-      storer.store_int(static_cast<int32>(0xcb9f372d));
-      storer.store_binary(message_ids_[0].get());
-      return;
-    }
-    //  invokeAfterMsgs#3dc4b4f0 {X:Type} msg_ids:Vector<long> query:!X = X;
-    storer.store_int(static_cast<int32>(0x3dc4b4f0));
-    storer.store_int(static_cast<int32>(0x1cb5c415));
-    storer.store_int(narrow_cast<int32>(message_ids_.size()));
-    for (auto message_id : message_ids_) {
-      storer.store_binary(message_id.get());
-    }
-  }
-
- private:
-  Span<MessageId> message_ids_;
-};
-
-class QueryImpl {
- public:
-  QueryImpl(const MtprotoQuery &query, Slice header) : query_(query), header_(header) {
-  }
-
-  template <class StorerT>
-  void do_store(StorerT &storer) const {
-    storer.store_binary(query_.message_id);
-    storer.store_binary(query_.seq_no);
-
-    InvokeAfter invoke_after(query_.invoke_after_message_ids);
-    auto invoke_after_storer = create_default_storer(invoke_after);
-
-    Slice data = query_.packet.as_slice();
-    mtproto_api::gzip_packed packed(data);
-    auto plain_storer = create_storer(data);
-    auto gzip_storer = TLObjectStorer<mtproto_api::gzip_packed>(packed);
-    const Storer &data_storer =
-        query_.gzip_flag ? static_cast<const Storer &>(gzip_storer) : static_cast<const Storer &>(plain_storer);
-    auto header_storer = create_storer(header_);
-    auto suff_storer = create_storer(invoke_after_storer, data_storer);
-    auto all_storer = create_storer(header_storer, suff_storer);
-
-    storer.store_binary(static_cast<uint32>(all_storer.size()));
-    storer.store_storer(all_storer);
-  }
-
- private:
-  const MtprotoQuery &query_;
-  Slice header_;
-};
-
-class QueryVectorImpl {
- public:
-  QueryVectorImpl(const vector<MtprotoQuery> &to_send, Slice header) : to_send_(to_send), header_(header) {
-  }
-
-  template <class StorerT>
-  void do_store(StorerT &storer) const {
-    if (to_send_.empty()) {
-      return;
-    }
-    for (auto &query : to_send_) {
-      storer.store_storer(PacketStorer<QueryImpl>(query, header_));
-    }
-  }
-
- private:
-  const vector<MtprotoQuery> &to_send_;
-  Slice header_;
-};
-
-class ContainerImpl {
- public:
-  ContainerImpl(int32 cnt, Storer &storer) : cnt_(cnt), storer_(storer) {
-  }
-
-  template <class StorerT>
-  void do_store(StorerT &storer) const {
-    storer.store_binary(mtproto_api::msg_container::ID);
-    storer.store_binary(cnt_);
-    storer.store_storer(storer_);
-  }
-
- private:
-  int32 cnt_;
-  Storer &storer_;
-};
-
-class CryptoImpl {
- public:
-  CryptoImpl(const vector<MtprotoQuery> &to_send, Slice header, vector<int64> &&to_ack, int64 ping_id, int ping_timeout,
-             int max_delay, int max_after, int max_wait, int future_salt_n, vector<int64> get_info,
-             vector<int64> resend, const vector<int64> &cancel, bool destroy_key, AuthData *auth_data,
-             MessageId *container_message_id, MessageId *get_info_message_id, MessageId *resend_message_id,
-             MessageId *ping_message_id, MessageId *parent_message_id)
-      : query_storer_(to_send, header)
-      , ack_empty_(to_ack.empty())
-      , ack_storer_(!ack_empty_, mtproto_api::msgs_ack(std::move(to_ack)), auth_data)
-      , http_wait_storer_(max_delay >= 0, mtproto_api::http_wait(max_delay, max_after, max_wait), auth_data)
-      , get_future_salts_storer_(future_salt_n > 0, mtproto_api::get_future_salts(future_salt_n), auth_data)
-      , get_info_not_empty_(!get_info.empty())
-      , get_info_storer_(get_info_not_empty_, mtproto_api::msgs_state_req(std::move(get_info)), auth_data)
-      , resend_not_empty_(!resend.empty())
-      , resend_storer_(resend_not_empty_, mtproto_api::msg_resend_req(std::move(resend)), auth_data)
-      , cancel_not_empty_(!cancel.empty())
-      , cancel_cnt_(static_cast<int32>(cancel.size()))
-      , cancel_storer_(cancel_not_empty_, cancel, auth_data)
-      , destroy_key_storer_(destroy_key, mtproto_api::destroy_auth_key(), auth_data)
-      , ping_storer_(ping_id != 0, mtproto_api::ping_delay_disconnect(ping_id, ping_timeout), auth_data)
-      , tmp_storer_(query_storer_, ack_storer_)
-      , tmp2_storer_(tmp_storer_, http_wait_storer_)
-      , tmp3_storer_(tmp2_storer_, get_future_salts_storer_)
-      , tmp4_storer_(tmp3_storer_, get_info_storer_)
-      , tmp5_storer_(tmp4_storer_, resend_storer_)
-      , tmp6_storer_(tmp5_storer_, cancel_storer_)
-      , tmp7_storer_(tmp6_storer_, destroy_key_storer_)
-      , concat_storer_(tmp7_storer_, ping_storer_)
-      , cnt_(static_cast<int32>(to_send.size()) + ack_storer_.not_empty() + ping_storer_.not_empty() +
-             http_wait_storer_.not_empty() + get_future_salts_storer_.not_empty() + get_info_storer_.not_empty() +
-             resend_storer_.not_empty() + cancel_cnt_ + destroy_key_storer_.not_empty())
-      , container_storer_(cnt_, concat_storer_) {
-    CHECK(cnt_ != 0);
-    if (get_info_storer_.not_empty() && get_info_message_id) {
-      *get_info_message_id = get_info_storer_.get_message_id();
-    }
-    if (resend_storer_.not_empty() && resend_message_id) {
-      *resend_message_id = resend_storer_.get_message_id();
-    }
-    if (ping_storer_.not_empty() && ping_message_id) {
-      *ping_message_id = ping_storer_.get_message_id();
-    }
-
-    if (cnt_ > 1 ||
-        (!to_send.empty() && !auth_data->is_valid_outbound_msg_id(to_send[0].message_id, Time::now_cached()))) {
-      type_ = Mixed;
-      message_id_ = auth_data->next_message_id(Time::now_cached());
-      seq_no_ = auth_data->next_seq_no(false);
-
-      *container_message_id = message_id_;
-      *parent_message_id = message_id_;
-    } else if (!to_send.empty()) {
-      CHECK(to_send.size() == 1u);
-      type_ = OnlyQuery;
-      *parent_message_id = to_send[0].message_id;
-    } else if (ack_storer_.not_empty()) {
-      type_ = OnlyAck;
-      *parent_message_id = ack_storer_.get_message_id();
-    } else if (ping_storer_.not_empty()) {
-      type_ = OnlyPing;
-      *parent_message_id = ping_storer_.get_message_id();
-    } else if (http_wait_storer_.not_empty()) {
-      type_ = OnlyHttpWait;
-      *parent_message_id = http_wait_storer_.get_message_id();
-    } else if (get_future_salts_storer_.not_empty()) {
-      type_ = OnlyGetFutureSalts;
-      *parent_message_id = get_future_salts_storer_.get_message_id();
-    } else if (get_info_storer_.not_empty()) {
-      type_ = OnlyGetInfo;
-      *parent_message_id = get_info_storer_.get_message_id();
-    } else if (resend_storer_.not_empty()) {
-      type_ = OnlyResend;
-      *parent_message_id = resend_storer_.get_message_id();
-    } else if (cancel_storer_.not_empty()) {
-      type_ = OnlyCancel;
-      *parent_message_id = cancel_storer_.get_message_id();
-    } else if (destroy_key_storer_.not_empty()) {
-      type_ = OnlyDestroyKey;
-      *parent_message_id = destroy_key_storer_.get_message_id();
-    } else {
-      UNREACHABLE();
-    }
-  }
-
-  template <class StorerT>
-  void do_store(StorerT &storer) const {
-    switch (type_) {
-      case OnlyAck:
-        return storer.store_storer(ack_storer_);
-
-      case OnlyQuery:
-        return storer.store_storer(query_storer_);
-
-      case OnlyPing:
-        return storer.store_storer(ping_storer_);
-
-      case OnlyHttpWait:
-        return storer.store_storer(http_wait_storer_);
-
-      case OnlyGetFutureSalts:
-        return storer.store_storer(get_future_salts_storer_);
-
-      case OnlyResend:
-        return storer.store_storer(resend_storer_);
-
-      case OnlyCancel:
-        return storer.store_storer(cancel_storer_);
-
-      case OnlyGetInfo:
-        return storer.store_storer(get_info_storer_);
-
-      case OnlyDestroyKey:
-        return storer.store_storer(destroy_key_storer_);
-
-      default:
-        storer.store_binary(message_id_);
-        storer.store_binary(seq_no_);
-        storer.store_binary(static_cast<int32>(container_storer_.size()));
-        storer.store_storer(container_storer_);
-    }
-  }
-
- private:
-  PacketStorer<QueryVectorImpl> query_storer_;
-  bool ack_empty_;
-  PacketStorer<AckImpl> ack_storer_;
-  PacketStorer<HttpWaitImpl> http_wait_storer_;
-  PacketStorer<GetFutureSaltsImpl> get_future_salts_storer_;
-  bool get_info_not_empty_;
-  PacketStorer<GetInfoImpl> get_info_storer_;
-  bool resend_not_empty_;
-  PacketStorer<ResendImpl> resend_storer_;
-  bool cancel_not_empty_;
-  int32 cancel_cnt_;
-  PacketStorer<CancelVectorImpl> cancel_storer_;
-  PacketStorer<DestroyAuthKeyImpl> destroy_key_storer_;
-  PacketStorer<PingImpl> ping_storer_;
-  ConcatStorer tmp_storer_;
-  ConcatStorer tmp2_storer_;
-  ConcatStorer tmp3_storer_;
-  ConcatStorer tmp4_storer_;
-  ConcatStorer tmp5_storer_;
-  ConcatStorer tmp6_storer_;
-  ConcatStorer tmp7_storer_;
-  ConcatStorer concat_storer_;
-  int32 cnt_;
-  PacketStorer<ContainerImpl> container_storer_;
-  enum Type {
-    OnlyQuery,
-    OnlyAck,
-    OnlyPing,
-    OnlyHttpWait,
-    OnlyGetFutureSalts,
-    OnlyResend,
-    OnlyCancel,
-    OnlyGetInfo,
-    OnlyDestroyKey,
-    Mixed
-  };
-  Type type_;
-  MessageId message_id_;
-  int32 seq_no_;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/DhCallback.h b/third-party/td/td/td/mtproto/DhCallback.h
deleted file mode 100644
index 6ed0dfb119..0000000000
--- a/third-party/td/td/td/mtproto/DhCallback.h
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-
-namespace td {
-namespace mtproto {
-
-class DhCallback {
- public:
-  DhCallback() = default;
-  DhCallback(const DhCallback &) = delete;
-  DhCallback &operator=(const DhCallback &) = delete;
-  DhCallback(DhCallback &&) = delete;
-  DhCallback &operator=(DhCallback &&) = delete;
-  virtual ~DhCallback() = default;
-
-  virtual int is_good_prime(Slice prime_str) const = 0;
-  virtual void add_good_prime(Slice prime_str) const = 0;
-  virtual void add_bad_prime(Slice prime_str) const = 0;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/DhHandshake.cpp b/third-party/td/td/td/mtproto/DhHandshake.cpp
deleted file mode 100644
index 74c82d523c..0000000000
--- a/third-party/td/td/td/mtproto/DhHandshake.cpp
+++ /dev/null
@@ -1,232 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/DhHandshake.h"
-
-#include "td/mtproto/DhCallback.h"
-
-#include "td/utils/as.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-namespace mtproto {
-
-Status DhHandshake::check_config(Slice prime_str, const BigNum &prime, int32 g_int, BigNumContext &ctx,
-                                 DhCallback *callback) {
-  // check that 2^2047 <= p < 2^2048
-  if (prime.get_num_bits() != 2048) {
-    return Status::Error("p is not 2048-bit number");
-  }
-
-  // g generates a cyclic subgroup of prime order (p - 1) / 2, i.e. is a quadratic residue mod p.
-  // Since g is always equal to 2, 3, 4, 5, 6 or 7, this is easily done using quadratic reciprocity law,
-  // yielding a simple condition on
-  // * p mod 4g - namely, p mod 8 = 7 for g = 2; p mod 3 = 2 for g = 3;
-  // * no extra condition for g = 4;
-  // * p mod 5 = 1 or 4 for g = 5;
-  // * p mod 24 = 19 or 23 for g = 6;
-  // * p mod 7 = 3, 5 or 6 for g = 7.
-
-  bool mod_ok;
-  uint32 mod_r;
-  switch (g_int) {
-    case 2:
-      mod_ok = prime % 8 == 7u;
-      break;
-    case 3:
-      mod_ok = prime % 3 == 2u;
-      break;
-    case 4:
-      mod_ok = true;
-      break;
-    case 5:
-      mod_ok = (mod_r = prime % 5) == 1u || mod_r == 4u;
-      break;
-    case 6:
-      mod_ok = (mod_r = prime % 24) == 19u || mod_r == 23u;
-      break;
-    case 7:
-      mod_ok = (mod_r = prime % 7) == 3u || mod_r == 5u || mod_r == 6u;
-      break;
-    default:
-      mod_ok = false;
-  }
-  if (!mod_ok) {
-    return Status::Error("Bad prime mod 4g");
-  }
-
-  // check whether p is a safe prime (meaning that both p and (p - 1) / 2 are prime)
-  int is_good_prime = -1;
-  if (callback) {
-    is_good_prime = callback->is_good_prime(prime_str);
-  }
-  if (is_good_prime != -1) {
-    return is_good_prime ? Status::OK() : Status::Error("p or (p - 1) / 2 is not a prime number");
-  }
-  if (!prime.is_prime(ctx)) {
-    if (callback) {
-      callback->add_bad_prime(prime_str);
-    }
-    return Status::Error("p is not a prime number");
-  }
-
-  BigNum half_prime = prime;
-  half_prime -= 1;
-  half_prime /= 2;
-  if (!half_prime.is_prime(ctx)) {
-    if (callback) {
-      callback->add_bad_prime(prime_str);
-    }
-    return Status::Error("(p - 1) / 2 is not a prime number");
-  }
-  if (callback) {
-    callback->add_good_prime(prime_str);
-  }
-  return Status::OK();
-}
-
-Status DhHandshake::dh_check(const BigNum &prime, const BigNum &g_a, const BigNum &g_b) {
-  // IMPORTANT: Apart from the conditions on the Diffie-Hellman prime dh_prime and generator g, both sides are
-  // to check that g, g_a and g_b are greater than 1 and less than dh_prime - 1.
-  // We recommend checking that g_a and g_b are between 2^{2048-64} and dh_prime - 2^{2048-64} as well.
-
-  CHECK(prime.get_num_bits() == 2048);
-  BigNum left;
-  left.set_value(0);
-  left.set_bit(2048 - 64);
-
-  BigNum right;
-  BigNum::sub(right, prime, left);
-
-  if (BigNum::compare(left, g_a) > 0 || BigNum::compare(g_a, right) > 0 || BigNum::compare(left, g_b) > 0 ||
-      BigNum::compare(g_b, right) > 0) {
-    std::string x(2048, '0');
-    std::string y(2048, '0');
-    for (int i = 0; i < 2048; i++) {
-      if (g_a.is_bit_set(i)) {
-        x[i] = '1';
-      }
-      if (g_b.is_bit_set(i)) {
-        y[i] = '1';
-      }
-    }
-    LOG(ERROR) << x;
-    LOG(ERROR) << y;
-    return Status::Error("g^a or g^b is not between 2^{2048-64} and dh_prime - 2^{2048-64}");
-  }
-
-  return Status::OK();
-}
-
-void DhHandshake::set_config(int32 g_int, Slice prime_str) {
-  has_config_ = true;
-  prime_ = BigNum::from_binary(prime_str);
-  prime_str_ = prime_str.str();
-
-  b_ = BigNum();
-  g_b_ = BigNum();
-
-  BigNum::random(b_, 2048, -1, 0);
-
-  // g^b
-  g_int_ = g_int;
-  g_.set_value(g_int_);
-
-  BigNum::mod_exp(g_b_, g_, b_, prime_, ctx_);
-}
-
-Status DhHandshake::check_config(int32 g_int, Slice prime_str, DhCallback *callback) {
-  BigNumContext ctx;
-  auto prime = BigNum::from_binary(prime_str);
-  return check_config(prime_str, prime, g_int, ctx, callback);
-}
-
-void DhHandshake::set_g_a_hash(Slice g_a_hash) {
-  has_g_a_hash_ = true;
-  ok_g_a_hash_ = false;
-  CHECK(!has_g_a_);
-  g_a_hash_ = g_a_hash.str();
-}
-
-void DhHandshake::set_g_a(Slice g_a_str) {
-  has_g_a_ = true;
-  if (has_g_a_hash_) {
-    string g_a_hash(32, ' ');
-    sha256(g_a_str, g_a_hash);
-    ok_g_a_hash_ = g_a_hash == g_a_hash_;
-  }
-  g_a_ = BigNum::from_binary(g_a_str);
-}
-
-string DhHandshake::get_g_a() const {
-  CHECK(has_g_a_);
-  return g_a_.to_binary();
-}
-
-string DhHandshake::get_g_b() const {
-  CHECK(has_config_);
-  return g_b_.to_binary();
-}
-string DhHandshake::get_g_b_hash() const {
-  string g_b_hash(32, ' ');
-  sha256(get_g_b(), g_b_hash);
-  return g_b_hash;
-}
-
-Status DhHandshake::run_checks(bool skip_config_check, DhCallback *callback) {
-  CHECK(has_g_a_ && has_config_);
-
-  if (has_g_a_hash_ && !ok_g_a_hash_) {
-    return Status::Error("g_a_hash mismatch");
-  }
-
-  if (!skip_config_check) {
-    TRY_STATUS(check_config(prime_str_, prime_, g_int_, ctx_, callback));
-  }
-
-  return dh_check(prime_, g_a_, g_b_);
-}
-
-BigNum DhHandshake::get_g() const {
-  CHECK(has_config_);
-  return g_;
-}
-
-BigNum DhHandshake::get_p() const {
-  CHECK(has_config_);
-  return prime_;
-}
-
-BigNum DhHandshake::get_b() const {
-  CHECK(has_config_);
-  return b_;
-}
-
-BigNum DhHandshake::get_g_ab() {
-  CHECK(has_g_a_ && has_config_);
-  BigNum g_ab;
-  BigNum::mod_exp(g_ab, g_a_, b_, prime_, ctx_);
-  return g_ab;
-}
-
-std::pair<int64, string> DhHandshake::gen_key() {
-  string key = get_g_ab().to_binary(2048 / 8);
-  auto key_id = calc_key_id(key);
-  return std::pair<int64, string>(key_id, std::move(key));
-}
-
-int64 DhHandshake::calc_key_id(Slice auth_key) {
-  UInt<160> auth_key_sha1;
-  sha1(auth_key, auth_key_sha1.raw);
-  return as<int64>(auth_key_sha1.raw + 12);
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/DhHandshake.h b/third-party/td/td/td/mtproto/DhHandshake.h
deleted file mode 100644
index 02ab86cb81..0000000000
--- a/third-party/td/td/td/mtproto/DhHandshake.h
+++ /dev/null
@@ -1,124 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/BigNum.h"
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-namespace mtproto {
-
-class DhCallback;
-
-class DhHandshake {
- public:
-  void set_config(int32 g_int, Slice prime_str);
-
-  static Status check_config(int32 g_int, Slice prime_str, DhCallback *callback);
-
-  bool has_config() const {
-    return has_config_;
-  }
-  void set_g_a_hash(Slice g_a_hash);
-  void set_g_a(Slice g_a_str);
-  bool has_g_a() const {
-    return has_g_a_;
-  }
-  string get_g_a() const;
-  string get_g_b() const;
-  string get_g_b_hash() const;
-  Status run_checks(bool skip_config_check, DhCallback *callback) TD_WARN_UNUSED_RESULT;
-
-  BigNum get_g() const;
-  BigNum get_p() const;
-  BigNum get_b() const;
-  BigNum get_g_ab();
-
-  std::pair<int64, string> gen_key();
-
-  static int64 calc_key_id(Slice auth_key);
-
-  enum Flags { HasConfig = 1, HasGA = 2 };
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    auto flags = 0;
-    if (has_config_) {
-      flags |= HasConfig;
-    }
-    if (has_g_a_) {
-      flags |= HasGA;
-    }
-    storer.store_int(flags);
-
-    if (has_config_) {
-      // prime_, prime_str_, b_, g_, g_int_, g_b_
-      storer.store_string(prime_str_);
-      storer.store_string(b_.to_binary());
-      storer.store_int(g_int_);
-      storer.store_string(g_b_.to_binary());
-    }
-    if (has_g_a_) {
-      storer.store_string(g_a_.to_binary());
-    }
-  }
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    auto flags = parser.fetch_int();
-    if (flags & HasConfig) {
-      has_config_ = true;
-    }
-    if (flags & HasGA) {
-      has_g_a_ = true;
-    }
-    if (has_config_) {
-      // prime_, prime_str_, b_, g_, g_int_, g_b_
-      prime_str_ = parser.template fetch_string<std::string>();
-      prime_ = BigNum::from_binary(prime_str_);
-
-      b_ = BigNum::from_binary(parser.template fetch_string<string>());
-
-      g_int_ = parser.fetch_int();
-      g_.set_value(g_int_);
-
-      g_b_ = BigNum::from_binary(parser.template fetch_string<string>());
-    }
-    if (has_g_a_) {
-      g_a_ = BigNum::from_binary(parser.template fetch_string<string>());
-    }
-  }
-
- private:
-  static Status check_config(Slice prime_str, const BigNum &prime, int32 g_int, BigNumContext &ctx,
-                             DhCallback *callback) TD_WARN_UNUSED_RESULT;
-
-  static Status dh_check(const BigNum &prime, const BigNum &g_a, const BigNum &g_b) TD_WARN_UNUSED_RESULT;
-
-  string prime_str_;
-  BigNum prime_;
-  BigNum g_;
-  int32 g_int_ = 0;
-  BigNum b_;
-  BigNum g_b_;
-  BigNum g_a_;
-
-  string g_a_hash_;
-  bool has_g_a_hash_{false};
-  bool ok_g_a_hash_{false};
-
-  bool has_config_ = false;
-  bool has_g_a_ = false;
-
-  BigNumContext ctx_;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/Handshake.cpp b/third-party/td/td/td/mtproto/Handshake.cpp
deleted file mode 100644
index 8872de1086..0000000000
--- a/third-party/td/td/td/mtproto/Handshake.cpp
+++ /dev/null
@@ -1,366 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/Handshake.h"
-
-#include "td/mtproto/DhCallback.h"
-#include "td/mtproto/DhHandshake.h"
-#include "td/mtproto/KDF.h"
-#include "td/mtproto/mtproto_api.h"
-#include "td/mtproto/utils.h"
-
-#include "td/utils/as.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_parsers.h"
-
-#include <algorithm>
-
-namespace td {
-namespace mtproto {
-
-template <class T>
-static Result<typename T::ReturnType> fetch_result(Slice message, bool check_end = true) {
-  TlParser parser(message);
-  auto result = T::fetch_result(parser);
-
-  if (check_end) {
-    parser.fetch_end();
-  }
-  const char *error = parser.get_error();
-  if (error != nullptr) {
-    LOG(ERROR) << "Can't parse: " << format::as_hex_dump<4>(message);
-    return Status::Error(500, Slice(error));
-  }
-
-  return std::move(result);
-}
-
-AuthKeyHandshake::AuthKeyHandshake(int32 dc_id, int32 expires_in)
-    : mode_(expires_in == 0 ? Mode::Main : Mode::Temp)
-    , dc_id_(dc_id)
-    , expires_in_(expires_in)
-    , start_time_(Time::now())
-    , timeout_in_(1e9) {
-}
-
-void AuthKeyHandshake::set_timeout_in(double timeout_in) {
-  start_time_ = Time::now();
-  timeout_in_ = timeout_in;
-}
-
-void AuthKeyHandshake::clear() {
-  last_query_ = string();
-  state_ = State::Start;
-  start_time_ = Time::now();
-  timeout_in_ = 1e9;
-}
-
-bool AuthKeyHandshake::is_ready_for_finish() const {
-  return state_ == State::Finish;
-}
-
-void AuthKeyHandshake::on_finish() {
-  clear();
-}
-
-template <class T>
-string AuthKeyHandshake::store_object(const T &object) {
-  auto storer = TLObjectStorer<T>(object);
-  size_t size = storer.size();
-  string result(size, '\0');
-  auto real_size = storer.store(MutableSlice(result).ubegin());
-  CHECK(real_size == size);
-  return result;
-}
-
-Status AuthKeyHandshake::on_res_pq(Slice message, Callback *connection, PublicRsaKeyInterface *public_rsa_key) {
-  if (Time::now() >= start_time_ + timeout_in_ * 0.6) {
-    return Status::Error("Handshake ResPQ timeout expired");
-  }
-
-  TRY_RESULT(res_pq, fetch_result<mtproto_api::req_pq_multi>(message, false));
-  if (res_pq->nonce_ != nonce_) {
-    return Status::Error("Nonce mismatch");
-  }
-
-  server_nonce_ = res_pq->server_nonce_;
-
-  auto r_rsa_key = public_rsa_key->get_rsa_key(res_pq->server_public_key_fingerprints_);
-  if (r_rsa_key.is_error()) {
-    public_rsa_key->drop_keys();
-    return r_rsa_key.move_as_error();
-  }
-  auto rsa_key = r_rsa_key.move_as_ok();
-
-  string p;
-  string q;
-  if (pq_factorize(res_pq->pq_, &p, &q) == -1) {
-    return Status::Error("Failed to factorize");
-  }
-
-  Random::secure_bytes(new_nonce_.raw, sizeof(new_nonce_));
-
-  string data;
-  switch (mode_) {
-    case Mode::Main:
-      data = store_object(mtproto_api::p_q_inner_data_dc(res_pq->pq_, p, q, nonce_, server_nonce_, new_nonce_, dc_id_));
-      break;
-    case Mode::Temp:
-      data = store_object(mtproto_api::p_q_inner_data_temp_dc(res_pq->pq_, p, q, nonce_, server_nonce_, new_nonce_,
-                                                              dc_id_, expires_in_));
-      expires_at_ = Time::now() + expires_in_;
-      break;
-    default:
-      UNREACHABLE();
-  }
-
-  string encrypted_data(256, '\0');
-  auto data_size = data.size();
-  if (data_size > 144) {
-    return Status::Error("Too big data");
-  }
-
-  data.resize(192);
-  Random::secure_bytes(MutableSlice(data).substr(data_size));
-
-  while (true) {
-    string aes_key(32, '\0');
-    Random::secure_bytes(MutableSlice(aes_key));
-
-    string data_with_hash = PSTRING() << data << sha256(aes_key + data);
-    std::reverse(data_with_hash.begin(), data_with_hash.begin() + data.size());
-
-    string decrypted_data(256, '\0');
-    string aes_iv(32, '\0');
-    aes_ige_encrypt(aes_key, aes_iv, data_with_hash, MutableSlice(decrypted_data).substr(32));
-
-    auto hash = sha256(MutableSlice(decrypted_data).substr(32));
-    for (size_t i = 0; i < 32; i++) {
-      decrypted_data[i] = static_cast<char>(aes_key[i] ^ hash[i]);
-    }
-
-    if (rsa_key.rsa.encrypt(decrypted_data, encrypted_data)) {
-      break;
-    }
-  }
-
-  mtproto_api::req_DH_params req_dh_params(nonce_, server_nonce_, p, q, rsa_key.fingerprint, encrypted_data);
-  send(connection, create_function_storer(req_dh_params));
-  state_ = State::ServerDHParams;
-  return Status::OK();
-}
-
-Status AuthKeyHandshake::on_server_dh_params(Slice message, Callback *connection, DhCallback *dh_callback) {
-  if (Time::now() >= start_time_ + timeout_in_ * 0.8) {
-    return Status::Error("Handshake DH params timeout expired");
-  }
-
-  TRY_RESULT(dh_params, fetch_result<mtproto_api::req_DH_params>(message, false));
-
-  // server_DH_params_ok#d0e8075c nonce:int128 server_nonce:int128 encrypted_answer:string = Server_DH_Params;
-  if (dh_params->nonce_ != nonce_) {
-    return Status::Error("Nonce mismatch");
-  }
-  if (dh_params->server_nonce_ != server_nonce_) {
-    return Status::Error("Server nonce mismatch");
-  }
-  if (dh_params->encrypted_answer_.size() & 15) {
-    return Status::Error("Bad padding for encrypted part");
-  }
-
-  UInt256 tmp_aes_key;
-  UInt256 tmp_aes_iv;
-  tmp_KDF(server_nonce_, new_nonce_, &tmp_aes_key, &tmp_aes_iv);
-  auto save_tmp_aes_iv = tmp_aes_iv;
-  // encrypted_answer := AES256_ige_encrypt (answer_with_hash, tmp_aes_key, tmp_aes_iv);
-  MutableSlice answer(const_cast<char *>(dh_params->encrypted_answer_.begin()), dh_params->encrypted_answer_.size());
-  aes_ige_decrypt(as_slice(tmp_aes_key), as_mutable_slice(tmp_aes_iv), answer, answer);
-  tmp_aes_iv = save_tmp_aes_iv;
-
-  // answer_with_hash := SHA1(answer) + answer + (0-15 random bytes)
-  TlParser answer_parser(answer);
-  UInt<160> answer_sha1 = answer_parser.fetch_binary<UInt<160>>();
-  int32 id = answer_parser.fetch_int();
-  if (id != mtproto_api::server_DH_inner_data::ID) {
-    return Status::Error("Failed to fetch server_DH_inner_data");
-  }
-  mtproto_api::server_DH_inner_data dh_inner_data(answer_parser);
-  if (answer_parser.get_error() != nullptr) {
-    return Status::Error("Failed to fetch server_DH_inner_data");
-  }
-
-  size_t pad = answer_parser.get_left_len();
-  if (pad >= 16) {
-    return Status::Error("Too much pad");
-  }
-
-  size_t dh_inner_data_size = answer.size() - pad - 20;
-  UInt<160> answer_real_sha1;
-  sha1(answer.substr(20, dh_inner_data_size), answer_real_sha1.raw);
-  if (answer_sha1 != answer_real_sha1) {
-    return Status::Error("SHA1 mismatch");
-  }
-
-  if (dh_inner_data.nonce_ != nonce_) {
-    return Status::Error("Nonce mismatch");
-  }
-  if (dh_inner_data.server_nonce_ != server_nonce_) {
-    return Status::Error("Server nonce mismatch");
-  }
-
-  server_time_diff_ = dh_inner_data.server_time_ - Time::now();
-
-  DhHandshake handshake;
-  handshake.set_config(dh_inner_data.g_, dh_inner_data.dh_prime_);
-  handshake.set_g_a(dh_inner_data.g_a_);
-  TRY_STATUS(handshake.run_checks(false, dh_callback));
-  string g_b = handshake.get_g_b();
-  auto auth_key_params = handshake.gen_key();
-
-  auto data = store_object(mtproto_api::client_DH_inner_data(nonce_, server_nonce_, 0, g_b));
-  size_t encrypted_data_size = 20 + data.size();
-  size_t encrypted_data_size_with_pad = (encrypted_data_size + 15) & -16;
-  string encrypted_data_str(encrypted_data_size_with_pad, '\0');
-  MutableSlice encrypted_data = encrypted_data_str;
-  sha1(data, encrypted_data.ubegin());
-  encrypted_data.substr(20, data.size()).copy_from(data);
-  Random::secure_bytes(encrypted_data.ubegin() + encrypted_data_size,
-                       encrypted_data_size_with_pad - encrypted_data_size);
-  tmp_KDF(server_nonce_, new_nonce_, &tmp_aes_key, &tmp_aes_iv);
-  aes_ige_encrypt(as_slice(tmp_aes_key), as_mutable_slice(tmp_aes_iv), encrypted_data, encrypted_data);
-
-  mtproto_api::set_client_DH_params set_client_dh_params(nonce_, server_nonce_, encrypted_data);
-  send(connection, create_function_storer(set_client_dh_params));
-
-  auth_key_ = AuthKey(auth_key_params.first, std::move(auth_key_params.second));
-  if (mode_ == Mode::Temp) {
-    auth_key_.set_expires_at(expires_at_);
-  }
-  auth_key_.set_created_at(dh_inner_data.server_time_);
-
-  server_salt_ = as<int64>(new_nonce_.raw) ^ as<int64>(server_nonce_.raw);
-
-  state_ = State::DHGenResponse;
-  return Status::OK();
-}
-
-Status AuthKeyHandshake::on_dh_gen_response(Slice message, Callback *connection) {
-  TRY_RESULT(answer, fetch_result<mtproto_api::set_client_DH_params>(message, false));
-  switch (answer->get_id()) {
-    case mtproto_api::dh_gen_ok::ID: {
-      auto dh_gen_ok = move_tl_object_as<mtproto_api::dh_gen_ok>(answer);
-      if (dh_gen_ok->nonce_ != nonce_) {
-        return Status::Error("Nonce mismatch");
-      }
-      if (dh_gen_ok->server_nonce_ != server_nonce_) {
-        return Status::Error("Server nonce mismatch");
-      }
-
-      UInt<160> auth_key_sha1;
-      sha1(auth_key_.key(), auth_key_sha1.raw);
-      auto new_nonce_hash = sha1(PSLICE() << new_nonce_.as_slice() << '\x01' << auth_key_sha1.as_slice().substr(0, 8));
-      if (dh_gen_ok->new_nonce_hash1_.as_slice() != Slice(new_nonce_hash).substr(4)) {
-        return Status::Error("New nonce hash mismatch");
-      }
-      state_ = State::Finish;
-      return Status::OK();
-    }
-    case mtproto_api::dh_gen_fail::ID:
-      return Status::Error("DhGenFail");
-    case mtproto_api::dh_gen_retry::ID:
-      return Status::Error("DhGenRetry");
-    default:
-      UNREACHABLE();
-      return Status::Error("Unknown set_client_DH_params response");
-  }
-}
-
-void AuthKeyHandshake::send(Callback *connection, const Storer &storer) {
-  auto size = storer.size();
-  last_query_.resize(size);
-  auto real_size = storer.store(MutableSlice(last_query_).ubegin());
-  CHECK(real_size == size);
-  do_send(connection, create_storer(Slice(last_query_)));
-}
-
-void AuthKeyHandshake::do_send(Callback *connection, const Storer &storer) {
-  connection->send_no_crypto(storer);
-}
-
-void AuthKeyHandshake::resume(Callback *connection) {
-  if (state_ == State::Start) {
-    return on_start(connection).ignore();
-  }
-  if (state_ == State::Finish) {
-    LOG(ERROR) << "State is Finish during resume. UNREACHABLE";
-    return clear();
-  }
-  if (last_query_.empty()) {
-    LOG(ERROR) << "Last query empty! UNREACHABLE " << state_;
-    return clear();
-  }
-  LOG(INFO) << "Resume handshake";
-  do_send(connection, create_storer(Slice(last_query_)));
-}
-
-Status AuthKeyHandshake::on_start(Callback *connection) {
-  if (state_ != State::Start) {
-    clear();
-    return Status::Error(PSLICE() << "on_start called after start " << tag("state", state_));
-  }
-  Random::secure_bytes(nonce_.raw, sizeof(nonce_));
-  send(connection, create_function_storer(mtproto_api::req_pq_multi(nonce_)));
-  state_ = State::ResPQ;
-
-  return Status::OK();
-}
-
-Status AuthKeyHandshake::on_message(Slice message, Callback *connection, AuthKeyHandshakeContext *context) {
-  Status status = [&] {
-    switch (state_) {
-      case State::ResPQ:
-        return on_res_pq(message, connection, context->get_public_rsa_key_interface());
-      case State::ServerDHParams:
-        return on_server_dh_params(message, connection, context->get_dh_callback());
-      case State::DHGenResponse:
-        return on_dh_gen_response(message, connection);
-      default:
-        UNREACHABLE();
-    }
-  }();
-  if (status.is_error()) {
-    LOG(WARNING) << "Failed to process hasdshake response in state " << state_ << ": " << status.message();
-    clear();
-  }
-  return status;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const AuthKeyHandshake::State &state) {
-  switch (state) {
-    case AuthKeyHandshake::State::Start:
-      return string_builder << "Start";
-    case AuthKeyHandshake::State::ResPQ:
-      return string_builder << "ResPQ";
-    case AuthKeyHandshake::State::ServerDHParams:
-      return string_builder << "ServerDHParams";
-    case AuthKeyHandshake::State::DHGenResponse:
-      return string_builder << "DHGenResponse";
-    case AuthKeyHandshake::State::Finish:
-      return string_builder << "Finish";
-    default:
-      UNREACHABLE();
-  }
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/Handshake.h b/third-party/td/td/td/mtproto/Handshake.h
deleted file mode 100644
index 1b9795433f..0000000000
--- a/third-party/td/td/td/mtproto/Handshake.h
+++ /dev/null
@@ -1,109 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/RSA.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-namespace mtproto {
-
-class DhCallback;
-
-class AuthKeyHandshakeContext {
- public:
-  virtual ~AuthKeyHandshakeContext() = default;
-  virtual DhCallback *get_dh_callback() = 0;
-  virtual PublicRsaKeyInterface *get_public_rsa_key_interface() = 0;
-};
-
-class AuthKeyHandshake {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-    virtual void send_no_crypto(const Storer &storer) = 0;
-  };
-
-  AuthKeyHandshake(int32 dc_id, int32 expires_in);
-
-  void set_timeout_in(double timeout_in);
-
-  bool is_ready_for_finish() const;
-
-  void on_finish();
-
-  void resume(Callback *connection);
-
-  Status on_message(Slice message, Callback *connection, AuthKeyHandshakeContext *context) TD_WARN_UNUSED_RESULT;
-
-  void clear();
-
-  const AuthKey &get_auth_key() const {
-    return auth_key_;
-  }
-
-  AuthKey release_auth_key() {
-    return std::move(auth_key_);
-  }
-
-  double get_server_time_diff() const {
-    return server_time_diff_;
-  }
-
-  uint64 get_server_salt() const {
-    return server_salt_;
-  }
-
- private:
-  enum class State : int32 { Start, ResPQ, ServerDHParams, DHGenResponse, Finish };
-  State state_ = State::Start;
-  enum class Mode : int32 { Main, Temp };
-  Mode mode_ = Mode::Main;
-  int32 dc_id_ = 0;
-  int32 expires_in_ = 0;
-  double expires_at_ = 0;
-
-  double start_time_ = 0;
-  double timeout_in_ = 0;
-
-  AuthKey auth_key_;
-  double server_time_diff_ = 0;
-  uint64 server_salt_ = 0;
-
-  UInt128 nonce_;
-  UInt128 server_nonce_;
-  UInt256 new_nonce_;
-
-  string last_query_;
-
-  template <class T>
-  static string store_object(const T &object);
-
-  void send(Callback *connection, const Storer &storer);
-  static void do_send(Callback *connection, const Storer &storer);
-
-  Status on_start(Callback *connection) TD_WARN_UNUSED_RESULT;
-  Status on_res_pq(Slice message, Callback *connection, PublicRsaKeyInterface *public_rsa_key) TD_WARN_UNUSED_RESULT;
-  Status on_server_dh_params(Slice message, Callback *connection, DhCallback *dh_callback) TD_WARN_UNUSED_RESULT;
-  Status on_dh_gen_response(Slice message, Callback *connection) TD_WARN_UNUSED_RESULT;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const State &state);
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/HandshakeActor.cpp b/third-party/td/td/td/mtproto/HandshakeActor.cpp
deleted file mode 100644
index 8645e00305..0000000000
--- a/third-party/td/td/td/mtproto/HandshakeActor.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/HandshakeActor.h"
-
-#include "td/mtproto/HandshakeConnection.h"
-
-#include "td/utils/common.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-HandshakeActor::HandshakeActor(unique_ptr<AuthKeyHandshake> handshake, unique_ptr<RawConnection> raw_connection,
-                               unique_ptr<AuthKeyHandshakeContext> context, double timeout,
-                               Promise<unique_ptr<RawConnection>> raw_connection_promise,
-                               Promise<unique_ptr<AuthKeyHandshake>> handshake_promise)
-    : handshake_(std::move(handshake))
-    , connection_(make_unique<HandshakeConnection>(std::move(raw_connection), handshake_.get(), std::move(context)))
-    , timeout_(timeout)
-    , raw_connection_promise_(std::move(raw_connection_promise))
-    , handshake_promise_(std::move(handshake_promise)) {
-}
-
-void HandshakeActor::close() {
-  finish(Status::Error("Canceled"));
-  stop();
-}
-
-void HandshakeActor::start_up() {
-  Scheduler::subscribe(connection_->get_poll_info().extract_pollable_fd(this));
-  set_timeout_in(timeout_);
-  handshake_->set_timeout_in(timeout_);
-  yield();
-}
-
-void HandshakeActor::loop() {
-  auto status = connection_->flush();
-  if (status.is_error()) {
-    finish(std::move(status));
-    return stop();
-  }
-  if (handshake_->is_ready_for_finish()) {
-    finish(Status::OK());
-    return stop();
-  }
-}
-
-void HandshakeActor::hangup() {
-  finish(Status::Error(1, "Canceled"));
-  stop();
-}
-
-void HandshakeActor::timeout_expired() {
-  finish(Status::Error("Timeout expired"));
-  stop();
-}
-
-void HandshakeActor::tear_down() {
-  finish(Status::OK());
-}
-
-void HandshakeActor::finish(Status status) {
-  // NB: order may be important for parent
-  return_connection(std::move(status));
-  return_handshake();
-}
-
-void HandshakeActor::return_connection(Status status) {
-  auto raw_connection = connection_->move_as_raw_connection();
-  if (!raw_connection) {
-    CHECK(!raw_connection_promise_);
-    return;
-  }
-  if (status.is_error() && !raw_connection->extra().debug_str.empty()) {
-    status = status.move_as_error_suffix(PSLICE() << " : " << raw_connection->extra().debug_str);
-  }
-  Scheduler::unsubscribe(raw_connection->get_poll_info().get_pollable_fd_ref());
-  if (raw_connection_promise_) {
-    if (status.is_error()) {
-      if (raw_connection->stats_callback()) {
-        raw_connection->stats_callback()->on_error();
-      }
-      raw_connection->close();
-      raw_connection_promise_.set_error(std::move(status));
-    } else {
-      if (raw_connection->stats_callback()) {
-        raw_connection->stats_callback()->on_pong();
-      }
-      raw_connection_promise_.set_value(std::move(raw_connection));
-    }
-  } else {
-    if (raw_connection->stats_callback()) {
-      raw_connection->stats_callback()->on_error();
-    }
-    raw_connection->close();
-  }
-}
-
-void HandshakeActor::return_handshake() {
-  if (!handshake_promise_) {
-    CHECK(!handshake_);
-    return;
-  }
-  handshake_promise_.set_value(std::move(handshake_));
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/HandshakeActor.h b/third-party/td/td/td/mtproto/HandshakeActor.h
deleted file mode 100644
index c140e4ffe3..0000000000
--- a/third-party/td/td/td/mtproto/HandshakeActor.h
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/Handshake.h"
-#include "td/mtproto/HandshakeConnection.h"
-#include "td/mtproto/RawConnection.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-// Owns RawConnection. Generates new auth key. And returns it and RawConnection. Or error...
-class HandshakeActor final : public Actor {
- public:
-  HandshakeActor(unique_ptr<AuthKeyHandshake> handshake, unique_ptr<RawConnection> raw_connection,
-                 unique_ptr<AuthKeyHandshakeContext> context, double timeout,
-                 Promise<unique_ptr<RawConnection>> raw_connection_promise,
-                 Promise<unique_ptr<AuthKeyHandshake>> handshake_promise);
-  void close();
-
- private:
-  unique_ptr<AuthKeyHandshake> handshake_;
-  unique_ptr<HandshakeConnection> connection_;
-  double timeout_;
-
-  Promise<unique_ptr<RawConnection>> raw_connection_promise_;
-  Promise<unique_ptr<AuthKeyHandshake>> handshake_promise_;
-
-  void start_up() final;
-
-  void tear_down() final;
-
-  void hangup() final;
-
-  void timeout_expired() final;
-
-  void loop() final;
-
-  void finish(Status status);
-
-  void return_connection(Status status);
-
-  void return_handshake();
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/HandshakeConnection.h b/third-party/td/td/td/mtproto/HandshakeConnection.h
deleted file mode 100644
index 9d3cc3dba0..0000000000
--- a/third-party/td/td/td/mtproto/HandshakeConnection.h
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/Handshake.h"
-#include "td/mtproto/MessageId.h"
-#include "td/mtproto/NoCryptoStorer.h"
-#include "td/mtproto/PacketInfo.h"
-#include "td/mtproto/PacketStorer.h"
-#include "td/mtproto/RawConnection.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-
-namespace td {
-namespace mtproto {
-
-class HandshakeConnection final
-    : private RawConnection::Callback
-    , private AuthKeyHandshake::Callback {
- public:
-  HandshakeConnection(unique_ptr<RawConnection> raw_connection, AuthKeyHandshake *handshake,
-                      unique_ptr<AuthKeyHandshakeContext> context)
-      : raw_connection_(std::move(raw_connection)), handshake_(handshake), context_(std::move(context)) {
-    handshake_->resume(this);
-  }
-
-  PollableFdInfo &get_poll_info() {
-    return raw_connection_->get_poll_info();
-  }
-
-  unique_ptr<RawConnection> move_as_raw_connection() {
-    return std::move(raw_connection_);
-  }
-
-  void close() {
-    raw_connection_->close();
-  }
-
-  Status flush() {
-    auto status = raw_connection_->flush(AuthKey(), *this);
-    if (status.code() == -404) {
-      LOG(WARNING) << "Clear handshake " << tag("error", status);
-      handshake_->clear();
-    }
-    return status;
-  }
-
- private:
-  unique_ptr<RawConnection> raw_connection_;
-  AuthKeyHandshake *handshake_;
-  unique_ptr<AuthKeyHandshakeContext> context_;
-
-  void send_no_crypto(const Storer &storer) final {
-    raw_connection_->send_no_crypto(PacketStorer<NoCryptoImpl>(MessageId(), storer));
-  }
-
-  Status on_raw_packet(const PacketInfo &packet_info, BufferSlice packet) final {
-    if (!packet_info.no_crypto_flag) {
-      return Status::Error("Expected not encrypted packet");
-    }
-
-    // skip header
-    if (packet.size() < 12) {
-      return Status::Error("Result is too small");
-    }
-    packet.confirm_read(12);
-
-    auto fixed_packet_size = packet.size() & ~3;  // remove some padded data
-    TRY_STATUS(handshake_->on_message(packet.as_slice().truncate(fixed_packet_size), this, context_.get()));
-    return Status::OK();
-  }
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/HttpTransport.cpp b/third-party/td/td/td/mtproto/HttpTransport.cpp
deleted file mode 100644
index 802c60512f..0000000000
--- a/third-party/td/td/td/mtproto/HttpTransport.cpp
+++ /dev/null
@@ -1,108 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/HttpTransport.h"
-
-#include "td/net/HttpHeaderCreator.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-// TODO: do I need \r\n as delimiter?
-
-#include <tuple>
-
-namespace td {
-namespace mtproto {
-namespace http {
-
-Result<size_t> Transport::read_next(BufferSlice *message, uint32 *quick_ack) {
-  CHECK(can_read());
-  auto r_size = reader_.read_next(&http_query_);
-  if (r_size.is_error() || r_size.ok() != 0) {
-    return r_size;
-  }
-  if (http_query_.type_ != HttpQuery::Type::Response) {
-    return Status::Error("Unexpected HTTP query type");
-  }
-  if (http_query_.container_.size() != 2u) {
-    return Status::Error("Wrong response");
-  }
-  *message = std::move(http_query_.container_[1]);
-  turn_ = Write;
-  return 0;
-}
-
-void Transport::write(BufferWriter &&message, bool quick_ack) {
-  CHECK(can_write());
-  CHECK(!quick_ack);
-  /*
-   * POST /api HTTP/1.1
-   * Content-Length: [message->size()]
-   * Host: url
-   */
-  HttpHeaderCreator hc;
-  Slice host;
-  Slice proxy_authorizarion;
-  std::tie(host, proxy_authorizarion) = split(Slice(secret_), '|');
-  if (host.empty()) {
-    hc.init_post("/api");
-    hc.add_header("Host", "");
-    hc.set_keep_alive();
-  } else {
-    hc.init_post(PSLICE() << "HTTP://" << host << ":80/api");
-    hc.add_header("Host", host);
-    hc.add_header("User-Agent", "curl/7.35.0");
-    hc.add_header("Accept", "*/*");
-    hc.add_header("Proxy-Connection", "keep-alive");
-    if (!proxy_authorizarion.empty()) {
-      hc.add_header("Proxy-Authorization", proxy_authorizarion);
-    }
-  }
-  hc.set_content_size(message.size());
-  auto r_head = hc.finish();
-  CHECK(r_head.is_ok());
-  Slice src = r_head.ok();
-  // LOG(DEBUG) << src;
-  MutableSlice dst = message.prepare_prepend();
-  dst.substr(dst.size() - src.size()).copy_from(src);
-  message.confirm_prepend(src.size());
-  output_->append(message.as_buffer_slice());
-  turn_ = Read;
-}
-
-bool Transport::can_read() const {
-  return turn_ == Read;
-}
-
-bool Transport::can_write() const {
-  return turn_ == Write;
-}
-
-size_t Transport::max_prepend_size() const {
-  if (secret_.empty()) {
-    return 96;
-  } else {
-    return (secret_.size() + 1) / 2 * 4 + 156;
-  }
-}
-
-size_t Transport::max_append_size() const {
-  return 0;
-}
-
-bool Transport::use_random_padding() const {
-  return false;
-}
-
-}  // namespace http
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/HttpTransport.h b/third-party/td/td/td/mtproto/HttpTransport.h
deleted file mode 100644
index c153f43c03..0000000000
--- a/third-party/td/td/td/mtproto/HttpTransport.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/IStreamTransport.h"
-#include "td/mtproto/ProxySecret.h"
-#include "td/mtproto/TransportType.h"
-
-#include "td/net/HttpQuery.h"
-#include "td/net/HttpReader.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-namespace http {
-
-class Transport final : public IStreamTransport {
- public:
-  explicit Transport(string secret) : secret_(std::move(secret)) {
-  }
-
-  Result<size_t> read_next(BufferSlice *message, uint32 *quick_ack) final TD_WARN_UNUSED_RESULT;
-  bool support_quick_ack() const final {
-    return false;
-  }
-  void write(BufferWriter &&message, bool quick_ack) final;
-  bool can_read() const final;
-  bool can_write() const final;
-  void init(ChainBufferReader *input, ChainBufferWriter *output) final {
-    reader_.init(input);
-    output_ = output;
-  }
-
-  size_t max_prepend_size() const final;
-  size_t max_append_size() const final;
-  TransportType get_type() const final {
-    return {TransportType::Http, 0, ProxySecret::from_raw(secret_)};
-  }
-  bool use_random_padding() const final;
-
- private:
-  string secret_;
-  HttpReader reader_;
-  HttpQuery http_query_;
-  ChainBufferWriter *output_ = nullptr;
-  enum { Write, Read } turn_ = Write;
-};
-
-}  // namespace http
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/IStreamTransport.cpp b/third-party/td/td/td/mtproto/IStreamTransport.cpp
deleted file mode 100644
index 9dc9085c13..0000000000
--- a/third-party/td/td/td/mtproto/IStreamTransport.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/IStreamTransport.h"
-
-#include "td/mtproto/HttpTransport.h"
-#include "td/mtproto/TcpTransport.h"
-
-namespace td {
-namespace mtproto {
-
-unique_ptr<IStreamTransport> create_transport(TransportType type) {
-  switch (type.type) {
-    case TransportType::ObfuscatedTcp:
-      return td::make_unique<tcp::ObfuscatedTransport>(type.dc_id, std::move(type.secret));
-    case TransportType::Tcp:
-      return td::make_unique<tcp::OldTransport>();
-    case TransportType::Http:
-      return td::make_unique<http::Transport>(type.secret.get_raw_secret().str());
-  }
-  UNREACHABLE();
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/IStreamTransport.h b/third-party/td/td/td/mtproto/IStreamTransport.h
deleted file mode 100644
index 06154f7d16..0000000000
--- a/third-party/td/td/td/mtproto/IStreamTransport.h
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/TransportType.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-class IStreamTransport {
- public:
-  IStreamTransport() = default;
-  IStreamTransport(const IStreamTransport &) = delete;
-  IStreamTransport &operator=(const IStreamTransport &) = delete;
-  virtual ~IStreamTransport() = default;
-  virtual Result<size_t> read_next(BufferSlice *message, uint32 *quick_ack) = 0;
-  virtual bool support_quick_ack() const = 0;
-  virtual void write(BufferWriter &&message, bool quick_ack) = 0;
-  virtual bool can_read() const = 0;
-  virtual bool can_write() const = 0;
-  virtual void init(ChainBufferReader *input, ChainBufferWriter *output) = 0;
-  virtual size_t max_prepend_size() const = 0;
-  virtual size_t max_append_size() const = 0;
-  virtual TransportType get_type() const = 0;
-  virtual bool use_random_padding() const = 0;
-};
-
-unique_ptr<IStreamTransport> create_transport(TransportType type);
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/KDF.cpp b/third-party/td/td/td/mtproto/KDF.cpp
deleted file mode 100644
index 56849a84dd..0000000000
--- a/third-party/td/td/td/mtproto/KDF.cpp
+++ /dev/null
@@ -1,107 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/KDF.h"
-
-#include "td/utils/as.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-
-namespace td {
-namespace mtproto {
-
-void KDF(Slice auth_key, const UInt128 &msg_key, int X, UInt256 *aes_key, UInt256 *aes_iv) {
-  LOG_CHECK(auth_key.size() == 2048 / 8) << auth_key.size();
-  const char *auth_key_raw = auth_key.data();
-  uint8 buf[48];
-  as<UInt128>(buf) = msg_key;
-  as<UInt256>(buf + 16) = as<UInt256>(auth_key_raw + X);
-  uint8 sha1_a[20];
-  sha1(Slice(buf, 48), sha1_a);
-
-  as<UInt128>(buf) = as<UInt128>(auth_key_raw + X + 32);
-  as<UInt128>(buf + 16) = msg_key;
-  as<UInt128>(buf + 32) = as<UInt128>(auth_key_raw + X + 48);
-  uint8 sha1_b[20];
-  sha1(Slice(buf, 48), sha1_b);
-
-  as<UInt256>(buf) = as<UInt256>(auth_key_raw + 64 + X);
-  as<UInt128>(buf + 32) = msg_key;
-  uint8 sha1_c[20];
-  sha1(Slice(buf, 48), sha1_c);
-
-  as<UInt128>(buf) = msg_key;
-  as<UInt256>(buf + 16) = as<UInt256>(auth_key_raw + 96 + X);
-  uint8 sha1_d[20];
-  sha1(Slice(buf, 48), sha1_d);
-
-  as<uint64>(aes_key->raw) = as<uint64>(sha1_a);
-  as<UInt<96>>(aes_key->raw + 8) = as<UInt<96>>(sha1_b + 8);
-  as<UInt<96>>(aes_key->raw + 20) = as<UInt<96>>(sha1_c + 4);
-
-  as<UInt<96>>(aes_iv->raw) = as<UInt<96>>(sha1_a + 8);
-  as<uint64>(aes_iv->raw + 12) = as<uint64>(sha1_b);
-  as<uint32>(aes_iv->raw + 20) = as<uint32>(sha1_c + 16);
-  as<uint64>(aes_iv->raw + 24) = as<uint64>(sha1_d);
-}
-
-void tmp_KDF(const UInt128 &server_nonce, const UInt256 &new_nonce, UInt256 *tmp_aes_key, UInt256 *tmp_aes_iv) {
-  // tmp_aes_key := SHA1(new_nonce + server_nonce) + substr(SHA1(server_nonce + new_nonce), 0, 12);
-  uint8 buf[512 / 8];
-  as<UInt256>(buf) = new_nonce;
-  as<UInt128>(buf + 32) = server_nonce;
-  sha1(Slice(buf, 48), tmp_aes_key->raw);
-
-  as<UInt128>(buf) = server_nonce;
-  as<UInt256>(buf + 16) = new_nonce;
-  uint8 sha1_server_new[20];
-  sha1(Slice(buf, 48), sha1_server_new);
-  as<UInt<96>>(tmp_aes_key->raw + 20) = as<UInt<96>>(sha1_server_new);
-
-  // tmp_aes_iv := substr(SHA1(server_nonce + new_nonce), 12, 8) + SHA1(new_nonce + new_nonce) + substr(new_nonce, 0, 4)
-  as<uint64>(tmp_aes_iv->raw) = as<uint64>(sha1_server_new + 12);
-
-  as<UInt256>(buf) = new_nonce;
-  as<UInt256>(buf + 32) = new_nonce;
-  sha1(Slice(buf, 64), tmp_aes_iv->raw + 8);
-  as<uint32>(tmp_aes_iv->raw + 28) = as<uint32>(new_nonce.raw);
-}
-
-void KDF2(Slice auth_key, const UInt128 &msg_key, int X, UInt256 *aes_key, UInt256 *aes_iv) {
-  uint8 buf_raw[36 + 16];
-  MutableSlice buf(buf_raw, 36 + 16);
-  Slice msg_key_slice = as_slice(msg_key);
-
-  // sha256_a = SHA256 (msg_key + substr(auth_key, x, 36));
-  buf.copy_from(msg_key_slice);
-  buf.substr(16, 36).copy_from(auth_key.substr(X, 36));
-  uint8 sha256_a_raw[32];
-  MutableSlice sha256_a(sha256_a_raw, 32);
-  sha256(buf, sha256_a);
-
-  // sha256_b = SHA256 (substr(auth_key, 40+x, 36) + msg_key);
-  buf.copy_from(auth_key.substr(40 + X, 36));
-  buf.substr(36).copy_from(msg_key_slice);
-  uint8 sha256_b_raw[32];
-  MutableSlice sha256_b(sha256_b_raw, 32);
-  sha256(buf, sha256_b);
-
-  // aes_key = substr(sha256_a, 0, 8) + substr(sha256_b, 8, 16) + substr(sha256_a, 24, 8);
-  MutableSlice aes_key_slice(aes_key->raw, sizeof(aes_key->raw));
-  aes_key_slice.copy_from(sha256_a.substr(0, 8));
-  aes_key_slice.substr(8).copy_from(sha256_b.substr(8, 16));
-  aes_key_slice.substr(24).copy_from(sha256_a.substr(24, 8));
-
-  // aes_iv = substr(sha256_b, 0, 8) + substr(sha256_a, 8, 16) + substr(sha256_b, 24, 8);
-  MutableSlice aes_iv_slice(aes_iv->raw, sizeof(aes_iv->raw));
-  aes_iv_slice.copy_from(sha256_b.substr(0, 8));
-  aes_iv_slice.substr(8).copy_from(sha256_a.substr(8, 16));
-  aes_iv_slice.substr(24).copy_from(sha256_b.substr(24, 8));
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/KDF.h b/third-party/td/td/td/mtproto/KDF.h
deleted file mode 100644
index 44ee4b7121..0000000000
--- a/third-party/td/td/td/mtproto/KDF.h
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-namespace mtproto {
-
-void KDF(Slice auth_key, const UInt128 &msg_key, int X, UInt256 *aes_key, UInt256 *aes_iv);
-
-void tmp_KDF(const UInt128 &server_nonce, const UInt256 &new_nonce, UInt256 *tmp_aes_key, UInt256 *tmp_aes_iv);
-
-void KDF2(Slice auth_key, const UInt128 &msg_key, int X, UInt256 *aes_key, UInt256 *aes_iv);
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/MessageId.h b/third-party/td/td/td/mtproto/MessageId.h
deleted file mode 100644
index 1f0cad0909..0000000000
--- a/third-party/td/td/td/mtproto/MessageId.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-namespace mtproto {
-
-class MessageId {
-  uint64 message_id_ = 0;
-
- public:
-  MessageId() = default;
-
-  explicit constexpr MessageId(uint64 message_id) : message_id_(message_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  MessageId(T message_id) = delete;
-
-  uint64 get() const {
-    return message_id_;
-  }
-
-  bool operator==(const MessageId &other) const {
-    return message_id_ == other.message_id_;
-  }
-
-  bool operator!=(const MessageId &other) const {
-    return message_id_ != other.message_id_;
-  }
-
-  friend bool operator<(const MessageId &lhs, const MessageId &rhs) {
-    return lhs.get() < rhs.get();
-  }
-
-  friend bool operator>(const MessageId &lhs, const MessageId &rhs) {
-    return lhs.get() > rhs.get();
-  }
-
-  friend bool operator<=(const MessageId &lhs, const MessageId &rhs) {
-    return lhs.get() <= rhs.get();
-  }
-
-  friend bool operator>=(const MessageId &lhs, const MessageId &rhs) {
-    return lhs.get() >= rhs.get();
-  }
-};
-
-struct MessageIdHash {
-  uint32 operator()(MessageId message_id) const {
-    return Hash<uint64>()(message_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, MessageId message_id) {
-  return string_builder << "message " << format::as_hex(message_id.get());
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/MtprotoQuery.h b/third-party/td/td/td/mtproto/MtprotoQuery.h
deleted file mode 100644
index 229419a0fb..0000000000
--- a/third-party/td/td/td/mtproto/MtprotoQuery.h
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/MessageId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-
-namespace td {
-namespace mtproto {
-
-struct MtprotoQuery {
-  MessageId message_id;
-  int32 seq_no;
-  BufferSlice packet;
-  bool gzip_flag;
-  vector<MessageId> invoke_after_message_ids;
-  bool use_quick_ack;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/NoCryptoStorer.h b/third-party/td/td/td/mtproto/NoCryptoStorer.h
deleted file mode 100644
index c2d512932a..0000000000
--- a/third-party/td/td/td/mtproto/NoCryptoStorer.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/MessageId.h"
-
-#include "td/utils/Random.h"
-#include "td/utils/StorerBase.h"
-
-namespace td {
-namespace mtproto {
-
-class NoCryptoImpl {
- public:
-  NoCryptoImpl(MessageId message_id, const Storer &data, bool need_pad = true) : message_id_(message_id), data_(data) {
-    if (need_pad) {
-      size_t pad_size = -static_cast<int>(data_.size()) & 15;
-      pad_size += 16 * (static_cast<size_t>(Random::secure_int32()) % 16);
-      pad_.resize(pad_size);
-      Random::secure_bytes(pad_);
-    }
-  }
-
-  template <class StorerT>
-  void do_store(StorerT &storer) const {
-    storer.store_binary(message_id_.get());
-    storer.store_binary(static_cast<int32>(data_.size() + pad_.size()));
-    storer.store_storer(data_);
-    storer.store_slice(pad_);
-  }
-
- private:
-  MessageId message_id_;
-  const Storer &data_;
-  std::string pad_;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/PacketInfo.h b/third-party/td/td/td/mtproto/PacketInfo.h
deleted file mode 100644
index 787889191c..0000000000
--- a/third-party/td/td/td/mtproto/PacketInfo.h
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/MessageId.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-namespace mtproto {
-
-struct PacketInfo {
-  enum { Common, EndToEnd } type = Common;
-  uint32 message_ack{0};
-
-  uint64 salt{0};
-  uint64 session_id{0};
-
-  MessageId message_id;
-  int32 seq_no{0};
-  int32 version{1};
-  bool no_crypto_flag{false};
-  bool is_creator{false};
-  bool check_mod4{true};
-  bool use_random_padding{false};
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/PacketStorer.h b/third-party/td/td/td/mtproto/PacketStorer.h
deleted file mode 100644
index 8e894add62..0000000000
--- a/third-party/td/td/td/mtproto/PacketStorer.h
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/StorerBase.h"
-#include "td/utils/tl_storers.h"
-
-#include <limits>
-
-namespace td {
-namespace mtproto {
-
-template <class Impl>
-class PacketStorer final
-    : public Storer
-    , public Impl {
- public:
-  size_t size() const final {
-    if (size_ != std::numeric_limits<size_t>::max()) {
-      return size_;
-    }
-    TlStorerCalcLength storer;
-    this->do_store(storer);
-    return size_ = storer.get_length();
-  }
-
-  size_t store(uint8 *ptr) const final {
-    TlStorerUnsafe storer(ptr);
-    this->do_store(storer);
-    return static_cast<size_t>(storer.get_buf() - ptr);
-  }
-
-  using Impl::Impl;
-
- private:
-  mutable size_t size_ = std::numeric_limits<size_t>::max();
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/Ping.cpp b/third-party/td/td/td/mtproto/Ping.cpp
deleted file mode 100644
index aa190714e6..0000000000
--- a/third-party/td/td/td/mtproto/Ping.cpp
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/Ping.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/PingConnection.h"
-#include "td/mtproto/RawConnection.h"
-
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-ActorOwn<> create_ping_actor(Slice actor_name, unique_ptr<RawConnection> raw_connection, unique_ptr<AuthData> auth_data,
-                             Promise<unique_ptr<RawConnection>> promise, ActorShared<> parent) {
-  class PingActor final : public Actor {
-   public:
-    PingActor(unique_ptr<RawConnection> raw_connection, unique_ptr<AuthData> auth_data,
-              Promise<unique_ptr<RawConnection>> promise, ActorShared<> parent)
-        : promise_(std::move(promise)), parent_(std::move(parent)) {
-      if (auth_data) {
-        ping_connection_ = PingConnection::create_ping_pong(std::move(raw_connection), std::move(auth_data));
-      } else {
-        ping_connection_ = PingConnection::create_req_pq(std::move(raw_connection), 2);
-      }
-    }
-
-   private:
-    unique_ptr<PingConnection> ping_connection_;
-    Promise<unique_ptr<RawConnection>> promise_;
-    ActorShared<> parent_;
-
-    void start_up() final {
-      Scheduler::subscribe(ping_connection_->get_poll_info().extract_pollable_fd(this));
-      set_timeout_in(10);
-      yield();
-    }
-
-    void hangup() final {
-      finish(Status::Error("Canceled"));
-      stop();
-    }
-
-    void tear_down() final {
-      finish(Status::OK());
-    }
-
-    void loop() final {
-      auto status = ping_connection_->flush();
-      if (status.is_error()) {
-        finish(std::move(status));
-        return stop();
-      }
-      if (ping_connection_->was_pong()) {
-        finish(Status::OK());
-        return stop();
-      }
-    }
-
-    void timeout_expired() final {
-      finish(Status::Error("Pong timeout expired"));
-      stop();
-    }
-
-    void finish(Status status) {
-      auto raw_connection = ping_connection_->move_as_raw_connection();
-      if (!raw_connection) {
-        CHECK(!promise_);
-        return;
-      }
-      Scheduler::unsubscribe(raw_connection->get_poll_info().get_pollable_fd_ref());
-      if (promise_) {
-        if (status.is_error()) {
-          if (raw_connection->stats_callback()) {
-            raw_connection->stats_callback()->on_error();
-          }
-          raw_connection->close();
-          promise_.set_error(std::move(status));
-        } else {
-          raw_connection->extra().rtt = ping_connection_->rtt();
-          if (raw_connection->stats_callback()) {
-            raw_connection->stats_callback()->on_pong();
-          }
-          promise_.set_value(std::move(raw_connection));
-        }
-      } else {
-        if (raw_connection->stats_callback()) {
-          raw_connection->stats_callback()->on_error();
-        }
-        raw_connection->close();
-      }
-    }
-  };
-  return ActorOwn<>(create_actor<PingActor>(PSLICE() << "PingActor<" << actor_name << ">", std::move(raw_connection),
-                                            std::move(auth_data), std::move(promise), std::move(parent)));
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/Ping.h b/third-party/td/td/td/mtproto/Ping.h
deleted file mode 100644
index b346907305..0000000000
--- a/third-party/td/td/td/mtproto/Ping.h
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/RawConnection.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-namespace mtproto {
-
-ActorOwn<> create_ping_actor(Slice actor_name, unique_ptr<RawConnection> raw_connection, unique_ptr<AuthData> auth_data,
-                             Promise<unique_ptr<RawConnection>> promise, ActorShared<> parent);
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/PingConnection.cpp b/third-party/td/td/td/mtproto/PingConnection.cpp
deleted file mode 100644
index 28bca3c308..0000000000
--- a/third-party/td/td/td/mtproto/PingConnection.cpp
+++ /dev/null
@@ -1,217 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/PingConnection.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/MessageId.h"
-#include "td/mtproto/mtproto_api.h"
-#include "td/mtproto/NoCryptoStorer.h"
-#include "td/mtproto/PacketInfo.h"
-#include "td/mtproto/PacketStorer.h"
-#include "td/mtproto/PingConnection.h"
-#include "td/mtproto/RawConnection.h"
-#include "td/mtproto/SessionConnection.h"
-#include "td/mtproto/utils.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/Time.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-namespace mtproto {
-namespace detail {
-
-class PingConnectionReqPQ final
-    : public PingConnection
-    , private RawConnection::Callback {
- public:
-  PingConnectionReqPQ(unique_ptr<RawConnection> raw_connection, size_t ping_count)
-      : raw_connection_(std::move(raw_connection)), ping_count_(ping_count) {
-  }
-
-  PollableFdInfo &get_poll_info() final {
-    return raw_connection_->get_poll_info();
-  }
-
-  unique_ptr<RawConnection> move_as_raw_connection() final {
-    return std::move(raw_connection_);
-  }
-
-  Status flush() final {
-    if (!was_ping_) {
-      UInt128 nonce;
-      Random::secure_bytes(nonce.raw, sizeof(nonce));
-      raw_connection_->send_no_crypto(PacketStorer<NoCryptoImpl>(
-          MessageId(static_cast<uint64>(1)), create_function_storer(mtproto_api::req_pq_multi(nonce))));
-      was_ping_ = true;
-      if (ping_count_ == 1) {
-        start_time_ = Time::now();
-      }
-    }
-    return raw_connection_->flush(AuthKey(), *this);
-  }
-
-  bool was_pong() const final {
-    return finish_time_ > 0;
-  }
-
-  double rtt() const final {
-    return finish_time_ - start_time_;
-  }
-
-  Status on_raw_packet(const PacketInfo &packet_info, BufferSlice packet) final {
-    if (packet.size() < 12) {
-      return Status::Error("Result is too small");
-    }
-    packet.confirm_read(12);
-    // TODO: fetch_result
-
-    if (--ping_count_ > 0) {
-      was_ping_ = false;
-      return flush();
-    } else {
-      finish_time_ = Time::now();
-      return Status::OK();
-    }
-  }
-
- private:
-  unique_ptr<RawConnection> raw_connection_;
-  size_t ping_count_ = 1;
-  double start_time_ = 0.0;
-  double finish_time_ = 0.0;
-  bool was_ping_ = false;
-};
-
-class PingConnectionPingPong final
-    : public PingConnection
-    , private SessionConnection::Callback {
- public:
-  PingConnectionPingPong(unique_ptr<RawConnection> raw_connection, unique_ptr<AuthData> auth_data)
-      : auth_data_(std::move(auth_data)) {
-    auth_data_->set_header("");
-    auth_data_->clear_seq_no();
-    connection_ =
-        make_unique<SessionConnection>(SessionConnection::Mode::Tcp, std::move(raw_connection), auth_data_.get());
-  }
-
- private:
-  unique_ptr<AuthData> auth_data_;
-  unique_ptr<SessionConnection> connection_;
-  int pong_cnt_{0};
-  double rtt_;
-  bool is_closed_{false};
-  Status status_;
-
-  void on_connected() final {
-  }
-
-  void on_closed(Status status) final {
-    is_closed_ = true;
-    CHECK(status.is_error());
-    status_ = std::move(status);
-  }
-
-  void on_server_salt_updated() final {
-  }
-
-  void on_server_time_difference_updated(bool force) final {
-  }
-
-  void on_new_session_created(uint64 unique_id, MessageId first_message_id) final {
-  }
-
-  void on_session_failed(Status status) final {
-  }
-
-  void on_container_sent(MessageId container_message_id, vector<MessageId> message_ids) final {
-  }
-
-  Status on_pong(double ping_time, double pong_time, double current_time) final {
-    pong_cnt_++;
-    if (pong_cnt_ == 1) {
-      rtt_ = Time::now();
-      connection_->set_online(false, false);
-    } else if (pong_cnt_ == 2) {
-      rtt_ = Time::now() - rtt_;
-    }
-    return Status::OK();
-  }
-
-  Status on_update(BufferSlice packet) final {
-    return Status::OK();
-  }
-
-  void on_message_ack(MessageId message_id) final {
-  }
-
-  Status on_message_result_ok(MessageId message_id, BufferSlice packet, size_t original_size) final {
-    LOG(ERROR) << "Unexpected message";
-    return Status::OK();
-  }
-
-  void on_message_result_error(MessageId message_id, int code, string message) final {
-  }
-
-  void on_message_failed(MessageId message_id, Status status) final {
-  }
-
-  void on_message_info(MessageId message_id, int32 state, MessageId answer_message_id, int32 answer_size,
-                       int32 source) final {
-  }
-
-  Status on_destroy_auth_key() final {
-    LOG(ERROR) << "Destroy auth key";
-    return Status::OK();
-  }
-
-  PollableFdInfo &get_poll_info() final {
-    return connection_->get_poll_info();
-  }
-
-  unique_ptr<RawConnection> move_as_raw_connection() final {
-    return connection_->move_as_raw_connection();
-  }
-
-  Status flush() final {
-    if (was_pong()) {
-      return Status::OK();
-    }
-    CHECK(!is_closed_);
-    connection_->flush(this);
-    if (is_closed_) {
-      CHECK(status_.is_error());
-      return std::move(status_);
-    }
-    return Status::OK();
-  }
-
-  bool was_pong() const final {
-    return pong_cnt_ >= 2;
-  }
-
-  double rtt() const final {
-    return rtt_;
-  }
-};
-
-}  // namespace detail
-
-unique_ptr<PingConnection> PingConnection::create_req_pq(unique_ptr<RawConnection> raw_connection, size_t ping_count) {
-  return make_unique<detail::PingConnectionReqPQ>(std::move(raw_connection), ping_count);
-}
-
-unique_ptr<PingConnection> PingConnection::create_ping_pong(unique_ptr<RawConnection> raw_connection,
-                                                            unique_ptr<AuthData> auth_data) {
-  return make_unique<detail::PingConnectionPingPong>(std::move(raw_connection), std::move(auth_data));
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/PingConnection.h b/third-party/td/td/td/mtproto/PingConnection.h
deleted file mode 100644
index 9520aaafac..0000000000
--- a/third-party/td/td/td/mtproto/PingConnection.h
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/RawConnection.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-class PingConnection {
- public:
-  virtual ~PingConnection() = default;
-  virtual PollableFdInfo &get_poll_info() = 0;
-  virtual unique_ptr<RawConnection> move_as_raw_connection() = 0;
-  virtual Status flush() = 0;
-  virtual bool was_pong() const = 0;
-  virtual double rtt() const = 0;
-
-  static unique_ptr<PingConnection> create_req_pq(unique_ptr<RawConnection> raw_connection, size_t ping_count);
-  static unique_ptr<PingConnection> create_ping_pong(unique_ptr<RawConnection> raw_connection,
-                                                     unique_ptr<AuthData> auth_data);
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/ProxySecret.cpp b/third-party/td/td/td/mtproto/ProxySecret.cpp
deleted file mode 100644
index 63279da0a4..0000000000
--- a/third-party/td/td/td/mtproto/ProxySecret.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/ProxySecret.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/misc.h"
-
-namespace td {
-namespace mtproto {
-
-Result<ProxySecret> ProxySecret::from_link(Slice encoded_secret, bool truncate_if_needed) {
-  auto r_decoded = hex_decode(encoded_secret);
-  if (r_decoded.is_error()) {
-    r_decoded = base64url_decode(encoded_secret);
-  }
-  if (r_decoded.is_error()) {
-    r_decoded = base64_decode(encoded_secret);
-  }
-  if (r_decoded.is_error()) {
-    return Status::Error(400, "Wrong proxy secret");
-  }
-  return from_binary(r_decoded.ok(), truncate_if_needed);
-}
-
-Result<ProxySecret> ProxySecret::from_binary(Slice raw_unchecked_secret, bool truncate_if_needed) {
-  if (raw_unchecked_secret.size() > 17 + MAX_DOMAIN_LENGTH) {
-    if (truncate_if_needed) {
-      raw_unchecked_secret.truncate(17 + MAX_DOMAIN_LENGTH);
-    } else {
-      return Status::Error(400, "Too long secret");
-    }
-  }
-  if (raw_unchecked_secret.size() == 16 ||
-      (raw_unchecked_secret.size() == 17 && static_cast<unsigned char>(raw_unchecked_secret[0]) == 0xdd) ||
-      (raw_unchecked_secret.size() >= 18 && static_cast<unsigned char>(raw_unchecked_secret[0]) == 0xee)) {
-    return from_raw(raw_unchecked_secret);
-  }
-  if (raw_unchecked_secret.size() < 16) {
-    return Status::Error(400, "Wrong proxy secret");
-  }
-  return Status::Error(400, "Unsupported proxy secret");
-}
-
-string ProxySecret::get_encoded_secret() const {
-  if (emulate_tls()) {
-    return base64url_encode(secret_);
-  }
-  return hex_encode(secret_);
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/ProxySecret.h b/third-party/td/td/td/mtproto/ProxySecret.h
deleted file mode 100644
index cce108bc71..0000000000
--- a/third-party/td/td/td/mtproto/ProxySecret.h
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-class ProxySecret {
- public:
-  static constexpr size_t MAX_DOMAIN_LENGTH = 182;  // must be small enough to not overflow TLS-hello length
-
-  static Result<ProxySecret> from_link(Slice encoded_secret, bool truncate_if_needed = false);
-
-  static Result<ProxySecret> from_binary(Slice raw_unchecked_secret, bool truncate_if_needed = false);
-
-  static ProxySecret from_raw(Slice raw_secret) {
-    ProxySecret result;
-    result.secret_ = raw_secret.str();
-    return result;
-  }
-
-  Slice get_raw_secret() const {
-    return secret_;
-  }
-
-  Slice get_proxy_secret() const {
-    Slice proxy_secret(secret_);
-    if (proxy_secret.size() >= 17) {
-      return proxy_secret.substr(1, 16);
-    }
-    return proxy_secret;
-  }
-
-  string get_encoded_secret() const;
-
-  bool use_random_padding() const {
-    return secret_.size() >= 17;
-  }
-
-  bool emulate_tls() const {
-    return secret_.size() >= 17 && static_cast<unsigned char>(secret_[0]) == 0xee;
-  }
-
-  string get_domain() const {
-    CHECK(emulate_tls());
-    return secret_.substr(17);
-  }
-
- private:
-  friend bool operator==(const ProxySecret &lhs, const ProxySecret &rhs) {
-    return lhs.secret_ == rhs.secret_;
-  }
-  string secret_;
-};
-
-inline bool operator!=(const ProxySecret &lhs, const ProxySecret &rhs) {
-  return !(lhs == rhs);
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/RSA.cpp b/third-party/td/td/td/mtproto/RSA.cpp
deleted file mode 100644
index db82e66f24..0000000000
--- a/third-party/td/td/td/mtproto/RSA.cpp
+++ /dev/null
@@ -1,158 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/RSA.h"
-
-#include "td/mtproto/mtproto_api.h"
-
-#include "td/utils/as.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_storers.h"
-
-#include <openssl/bio.h>
-#include <openssl/bn.h>
-#include <openssl/opensslv.h>
-#include <openssl/pem.h>
-#if OPENSSL_VERSION_NUMBER < 0x30000000L || defined(LIBRESSL_VERSION_NUMBER)
-#include <openssl/rsa.h>
-#endif
-
-namespace td {
-namespace mtproto {
-
-RSA::RSA(BigNum n, BigNum e) : n_(std::move(n)), e_(std::move(e)) {
-}
-
-RSA RSA::clone() const {
-  return RSA(n_.clone(), e_.clone());
-}
-
-Result<RSA> RSA::from_pem_public_key(Slice pem) {
-  init_crypto();
-
-  auto *bio =
-      BIO_new_mem_buf(const_cast<void *>(static_cast<const void *>(pem.ubegin())), narrow_cast<int32>(pem.size()));
-  if (bio == nullptr) {
-    return Status::Error("Cannot create BIO");
-  }
-  SCOPE_EXIT {
-    BIO_free(bio);
-  };
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  EVP_PKEY *rsa = PEM_read_bio_PUBKEY(bio, nullptr, nullptr, nullptr);
-#else
-  auto rsa = PEM_read_bio_RSAPublicKey(bio, nullptr, nullptr, nullptr);
-#endif
-  if (rsa == nullptr) {
-    return Status::Error("Error while reading RSA public key");
-  }
-  SCOPE_EXIT {
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-    EVP_PKEY_free(rsa);
-#else
-    RSA_free(rsa);
-#endif
-  };
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  if (!EVP_PKEY_is_a(rsa, "RSA")) {
-    return Status::Error("Key is not an RSA key");
-  }
-  if (EVP_PKEY_size(rsa) != 256) {
-    return Status::Error("EVP_PKEY_size != 256");
-  }
-#else
-  if (RSA_size(rsa) != 256) {
-    return Status::Error("RSA_size != 256");
-  }
-#endif
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  BIGNUM *n_num = nullptr;
-  BIGNUM *e_num = nullptr;
-
-  int res = EVP_PKEY_get_bn_param(rsa, "n", &n_num);
-  CHECK(res == 1 && n_num != nullptr);
-  res = EVP_PKEY_get_bn_param(rsa, "e", &e_num);
-  CHECK(res == 1 && e_num != nullptr);
-
-  auto n = static_cast<void *>(n_num);
-  auto e = static_cast<void *>(e_num);
-#else
-  const BIGNUM *n_num;
-  const BIGNUM *e_num;
-
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  RSA_get0_key(rsa, &n_num, &e_num, nullptr);
-#else
-  n_num = rsa->n;
-  e_num = rsa->e;
-#endif
-
-  auto n = static_cast<void *>(BN_dup(n_num));
-  auto e = static_cast<void *>(BN_dup(e_num));
-  if (n == nullptr || e == nullptr) {
-    return Status::Error("Cannot dup BIGNUM");
-  }
-#endif
-
-  return RSA(BigNum::from_raw(n), BigNum::from_raw(e));
-}
-
-int64 RSA::get_fingerprint() const {
-  // string objects are necessary, because mtproto_api::rsa_public_key contains Slice inside
-  string n_str = n_.to_binary();
-  string e_str = e_.to_binary();
-  mtproto_api::rsa_public_key public_key(n_str, e_str);
-  size_t size = tl_calc_length(public_key);
-  std::vector<unsigned char> tmp(size);
-  size = tl_store_unsafe(public_key, tmp.data());
-  CHECK(size == tmp.size());
-  unsigned char key_sha1[20];
-  sha1(Slice(tmp.data(), tmp.size()), key_sha1);
-  return as<int64>(key_sha1 + 12);
-}
-
-size_t RSA::size() const {
-  // Checked in RSA::from_pem_public_key step
-  return 256;
-}
-
-bool RSA::encrypt(Slice from, MutableSlice to) const {
-  CHECK(from.size() == 256);
-  CHECK(to.size() == 256);
-  int bits = n_.get_num_bits();
-  CHECK(bits >= 2041 && bits <= 2048);
-
-  BigNum x = BigNum::from_binary(from);
-  if (BigNum::compare(x, n_) >= 0) {
-    return false;
-  }
-
-  BigNumContext ctx;
-  BigNum y;
-  BigNum::mod_exp(y, x, e_, n_, ctx);
-  to.copy_from(y.to_binary(256));
-  return true;
-}
-
-void RSA::decrypt_signature(Slice from, MutableSlice to) const {
-  CHECK(from.size() == 256);
-  BigNumContext ctx;
-  BigNum x = BigNum::from_binary(from);
-  BigNum y;
-  BigNum::mod_exp(y, x, e_, n_, ctx);
-  to.copy_from(y.to_binary(256));
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/RSA.h b/third-party/td/td/td/mtproto/RSA.h
deleted file mode 100644
index 6d08cf7a8f..0000000000
--- a/third-party/td/td/td/mtproto/RSA.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/BigNum.h"
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-class RSA {
- public:
-  RSA clone() const;
-  int64 get_fingerprint() const;
-  size_t size() const;
-
-  bool encrypt(Slice from, MutableSlice to) const;
-
-  void decrypt_signature(Slice from, MutableSlice to) const;
-
-  static Result<RSA> from_pem_public_key(Slice pem);
-
- private:
-  RSA(BigNum n, BigNum e);
-  BigNum n_;
-  BigNum e_;
-};
-
-class PublicRsaKeyInterface {
- public:
-  virtual ~PublicRsaKeyInterface() = default;
-
-  struct RsaKey {
-    RSA rsa;
-    int64 fingerprint;
-  };
-  virtual Result<RsaKey> get_rsa_key(const vector<int64> &fingerprints) = 0;
-
-  virtual void drop_keys() = 0;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/RawConnection.cpp b/third-party/td/td/td/mtproto/RawConnection.cpp
deleted file mode 100644
index 6a92ee8809..0000000000
--- a/third-party/td/td/td/mtproto/RawConnection.cpp
+++ /dev/null
@@ -1,493 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/RawConnection.h"
-
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/IStreamTransport.h"
-#include "td/mtproto/ProxySecret.h"
-#include "td/mtproto/Transport.h"
-
-#if TD_DARWIN_WATCH_OS
-#include "td/net/DarwinHttp.h"
-#endif
-
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/MpscPollableQueue.h"
-#include "td/utils/port/EventFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-namespace mtproto {
-
-RawConnection::~RawConnection() {
-  LOG(DEBUG) << "Destroy raw connection " << this;
-}
-
-class RawConnectionDefault final : public RawConnection {
- public:
-  RawConnectionDefault(BufferedFd<SocketFd> buffered_socket_fd, TransportType transport_type,
-                       unique_ptr<StatsCallback> stats_callback)
-      : socket_fd_(std::move(buffered_socket_fd))
-      , transport_(create_transport(std::move(transport_type)))
-      , stats_callback_(std::move(stats_callback)) {
-    LOG(DEBUG) << "Create raw connection " << this;
-    transport_->init(&socket_fd_.input_buffer(), &socket_fd_.output_buffer());
-  }
-
-  void set_connection_token(ConnectionManager::ConnectionToken connection_token) final {
-    connection_token_ = std::move(connection_token);
-  }
-
-  bool can_send() const final {
-    return transport_->can_write();
-  }
-
-  TransportType get_transport_type() const final {
-    return transport_->get_type();
-  }
-
-  size_t send_crypto(const Storer &storer, uint64 session_id, int64 salt, const AuthKey &auth_key,
-                     uint64 quick_ack_token) final {
-    PacketInfo packet_info;
-    packet_info.version = 2;
-    packet_info.no_crypto_flag = false;
-    packet_info.salt = salt;
-    packet_info.session_id = session_id;
-    packet_info.use_random_padding = transport_->use_random_padding();
-    auto packet =
-        Transport::write(storer, auth_key, &packet_info, transport_->max_prepend_size(), transport_->max_append_size());
-
-    bool use_quick_ack = false;
-    if (quick_ack_token != 0 && transport_->support_quick_ack()) {
-      CHECK(packet_info.message_ack & (1u << 31));
-      auto tmp = quick_ack_to_token_.emplace(packet_info.message_ack, quick_ack_token);
-      if (tmp.second) {
-        use_quick_ack = true;
-      } else {
-        LOG(ERROR) << "Quick ack " << packet_info.message_ack << " collision";
-      }
-    }
-
-    auto packet_size = packet.size();
-    transport_->write(std::move(packet), use_quick_ack);
-    return packet_size;
-  }
-
-  void send_no_crypto(const Storer &storer) final {
-    PacketInfo packet_info;
-    packet_info.no_crypto_flag = true;
-    auto packet = Transport::write(storer, AuthKey(), &packet_info, transport_->max_prepend_size(),
-                                   transport_->max_append_size());
-
-    LOG(INFO) << "Send handshake packet: " << format::as_hex_dump<4>(packet.as_slice());
-    transport_->write(std::move(packet), false);
-  }
-
-  PollableFdInfo &get_poll_info() final {
-    return socket_fd_.get_poll_info();
-  }
-
-  StatsCallback *stats_callback() final {
-    return stats_callback_.get();
-  }
-
-  // NB: After first returned error, all subsequent calls will return error too.
-  Status flush(const AuthKey &auth_key, Callback &callback) final {
-    auto status = do_flush(auth_key, callback);
-    if (status.is_error()) {
-      if (stats_callback_ && status.code() != 2) {
-        stats_callback_->on_error();
-      }
-      has_error_ = true;
-    }
-    return status;
-  }
-
-  bool has_error() const final {
-    return has_error_;
-  }
-
-  void close() final {
-    LOG(DEBUG) << "Close raw connection " << this;
-    transport_.reset();
-    socket_fd_.close();
-  }
-
-  PublicFields &extra() final {
-    return extra_;
-  }
-  const PublicFields &extra() const final {
-    return extra_;
-  }
-
- private:
-  PublicFields extra_;
-  BufferedFd<SocketFd> socket_fd_;
-  unique_ptr<IStreamTransport> transport_;
-  FlatHashMap<uint32, uint64> quick_ack_to_token_;
-  bool has_error_{false};
-
-  unique_ptr<StatsCallback> stats_callback_;
-
-  ConnectionManager::ConnectionToken connection_token_;
-
-  void on_read(size_t size, Callback &callback) {
-    if (size <= 0) {
-      return;
-    }
-
-    if (stats_callback_) {
-      stats_callback_->on_read(size);
-    }
-    callback.on_read(size);
-  }
-
-  Status flush_read(const AuthKey &auth_key, Callback &callback) {
-    auto r = socket_fd_.flush_read();
-    if (r.is_ok()) {
-      on_read(r.ok(), callback);
-    }
-    while (transport_->can_read()) {
-      BufferSlice packet;
-      uint32 quick_ack = 0;
-      TRY_RESULT(wait_size, transport_->read_next(&packet, &quick_ack));
-      if (wait_size != 0) {
-        constexpr size_t MAX_PACKET_SIZE = (1 << 22) + 1024;
-        if (wait_size > MAX_PACKET_SIZE) {
-          return Status::Error(PSLICE() << "Expected packet size is too big: " << wait_size);
-        }
-        break;
-      }
-      if (quick_ack != 0) {
-        TRY_STATUS(on_quick_ack(quick_ack, callback));
-        continue;
-      }
-
-      auto old_pointer = packet.as_slice().ubegin();
-      if (!is_aligned_pointer<4>(old_pointer)) {
-        BufferSlice new_packet(packet.size());
-        new_packet.as_mutable_slice().copy_from(packet.as_slice());
-        packet = std::move(new_packet);
-      }
-      LOG_CHECK(is_aligned_pointer<4>(packet.as_slice().ubegin()))
-          << old_pointer << ' ' << packet.as_slice().ubegin() << ' ' << BufferSlice(0).as_slice().ubegin() << ' '
-          << packet.size() << ' ' << wait_size << ' ' << quick_ack;
-
-      PacketInfo packet_info;
-      packet_info.version = 2;
-
-      TRY_RESULT(read_result, Transport::read(packet.as_mutable_slice(), auth_key, &packet_info));
-      switch (read_result.type()) {
-        case Transport::ReadResult::Quickack:
-          TRY_STATUS(on_quick_ack(read_result.quick_ack(), callback));
-          break;
-        case Transport::ReadResult::Error:
-          TRY_STATUS(on_read_mtproto_error(read_result.error()));
-          break;
-        case Transport::ReadResult::Packet:
-          // If a packet was successfully decrypted, then it is ok to assume that the connection is alive
-          if (!auth_key.empty()) {
-            if (stats_callback_) {
-              stats_callback_->on_pong();
-            }
-          }
-
-          TRY_STATUS(callback.on_raw_packet(packet_info, packet.from_slice(read_result.packet())));
-          break;
-        case Transport::ReadResult::Nop:
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-
-    TRY_STATUS(std::move(r));
-    return Status::OK();
-  }
-
-  Status on_read_mtproto_error(int32 error_code) {
-    if (error_code == -429) {
-      if (stats_callback_) {
-        stats_callback_->on_mtproto_error();
-      }
-      return Status::Error(500, PSLICE() << "MTProto error: " << error_code);
-    }
-    if (error_code == -404) {
-      return Status::Error(-404, PSLICE() << "MTProto error: " << error_code);
-    }
-    return Status::Error(PSLICE() << "MTProto error: " << error_code);
-  }
-
-  Status on_quick_ack(uint32 quick_ack, Callback &callback) {
-    if ((quick_ack & (1u << 31)) == 0) {
-      LOG(ERROR) << "Receive invalid quick_ack " << quick_ack;
-      return Status::OK();
-    }
-
-    auto it = quick_ack_to_token_.find(quick_ack);
-    if (it == quick_ack_to_token_.end()) {
-      LOG(WARNING) << "Receive unknown quick_ack " << quick_ack;
-      return Status::OK();
-    }
-    auto token = it->second;
-    quick_ack_to_token_.erase(it);
-    callback.on_quick_ack(token).ignore();
-    return Status::OK();
-  }
-
-  Status flush_write() {
-    TRY_RESULT(size, socket_fd_.flush_write());
-    if (size > 0 && stats_callback_) {
-      stats_callback_->on_write(size);
-    }
-    return Status::OK();
-  }
-
-  Status do_flush(const AuthKey &auth_key, Callback &callback) TD_WARN_UNUSED_RESULT {
-    if (has_error_) {
-      return Status::Error("Connection has already failed");
-    }
-    sync_with_poll(socket_fd_);
-
-    // read/write
-    // EINVAL can be returned in Linux kernel < 2.6.28. And on some new kernels too.
-    // just close connection and hope that read or write will not return this error too.
-    TRY_STATUS(socket_fd_.get_pending_error());
-
-    TRY_STATUS(flush_read(auth_key, callback));
-    TRY_STATUS(callback.before_write());
-    TRY_STATUS(flush_write());
-    if (can_close_local(socket_fd_)) {
-      return Status::Error("Connection closed");
-    }
-    return Status::OK();
-  }
-};
-
-#if TD_DARWIN_WATCH_OS
-class RawConnectionHttp final : public RawConnection {
- public:
-  RawConnectionHttp(IPAddress ip_address, unique_ptr<StatsCallback> stats_callback)
-      : ip_address_(std::move(ip_address)), stats_callback_(std::move(stats_callback)) {
-    LOG(DEBUG) << "Create raw connection " << this;
-    answers_ = std::make_shared<MpscPollableQueue<Result<BufferSlice>>>();
-    answers_->init();
-  }
-
-  void set_connection_token(ConnectionManager::ConnectionToken connection_token) final {
-    connection_token_ = std::move(connection_token);
-  }
-
-  bool can_send() const final {
-    return mode_ == Send;
-  }
-
-  TransportType get_transport_type() const final {
-    return mtproto::TransportType{mtproto::TransportType::Http, 0, mtproto::ProxySecret()};
-  }
-
-  size_t send_crypto(const Storer &storer, uint64 session_id, int64 salt, const AuthKey &auth_key,
-                     uint64 quick_ack_token) final {
-    PacketInfo packet_info;
-    packet_info.version = 2;
-    packet_info.no_crypto_flag = false;
-    packet_info.salt = salt;
-    packet_info.session_id = session_id;
-    packet_info.use_random_padding = false;
-    auto packet = Transport::write(storer, auth_key, &packet_info);
-
-    auto packet_size = packet.size();
-    send_packet(packet.as_buffer_slice());
-    return packet_size;
-  }
-
-  void send_no_crypto(const Storer &storer) final {
-    PacketInfo packet_info;
-    packet_info.no_crypto_flag = true;
-    auto packet = Transport::write(storer, AuthKey(), &packet_info);
-
-    LOG(INFO) << "Send handshake packet: " << format::as_hex_dump<4>(packet.as_slice());
-    send_packet(packet.as_buffer_slice());
-  }
-
-  PollableFdInfo &get_poll_info() final {
-    return answers_->reader_get_event_fd().get_poll_info();
-  }
-
-  StatsCallback *stats_callback() final {
-    return stats_callback_.get();
-  }
-
-  // NB: After first returned error, all subsequent calls will return error too.
-  Status flush(const AuthKey &auth_key, Callback &callback) final {
-    auto status = do_flush(auth_key, callback);
-    if (status.is_error()) {
-      if (stats_callback_ && status.code() != 2) {
-        stats_callback_->on_error();
-      }
-      has_error_ = true;
-    }
-    return status;
-  }
-
-  bool has_error() const final {
-    return has_error_;
-  }
-
-  void close() final {
-    LOG(DEBUG) << "Close raw connection " << this;
-  }
-
-  PublicFields &extra() final {
-    return extra_;
-  }
-  const PublicFields &extra() const final {
-    return extra_;
-  }
-
- private:
-  PublicFields extra_;
-  IPAddress ip_address_;
-  bool has_error_{false};
-  EventFd event_fd_;
-
-  enum Mode { Send, Receive } mode_{Send};
-
-  unique_ptr<StatsCallback> stats_callback_;
-
-  ConnectionManager::ConnectionToken connection_token_;
-  std::shared_ptr<MpscPollableQueue<Result<BufferSlice>>> answers_;
-  std::vector<BufferSlice> to_send_;
-
-  void on_read(size_t size, Callback &callback) {
-    if (size <= 0) {
-      return;
-    }
-
-    if (stats_callback_) {
-      stats_callback_->on_read(size);
-    }
-    callback.on_read(size);
-  }
-
-  void send_packet(BufferSlice packet) {
-    CHECK(mode_ == Send);
-    mode_ = Receive;
-    to_send_.push_back(std::move(packet));
-  }
-
-  Status flush_read(const AuthKey &auth_key, Callback &callback) {
-    while (true) {
-      auto packets_n = answers_->reader_wait_nonblock();
-      if (packets_n == 0) {
-        break;
-      }
-      for (int i = 0; i < packets_n; i++) {
-        TRY_RESULT(packet, answers_->reader_get_unsafe());
-        on_read(packet.size(), callback);
-        CHECK(mode_ == Receive);
-        mode_ = Send;
-
-        PacketInfo packet_info;
-        packet_info.version = 2;
-
-        TRY_RESULT(read_result, Transport::read(packet.as_mutable_slice(), auth_key, &packet_info));
-        switch (read_result.type()) {
-          case Transport::ReadResult::Quickack: {
-            break;
-          }
-          case Transport::ReadResult::Error: {
-            TRY_STATUS(on_read_mtproto_error(read_result.error()));
-            break;
-          }
-          case Transport::ReadResult::Packet: {
-            // If a packet was successfully decrypted, then it is ok to assume that the connection is alive
-            if (!auth_key.empty()) {
-              if (stats_callback_) {
-                stats_callback_->on_pong();
-              }
-            }
-
-            TRY_STATUS(callback.on_raw_packet(packet_info, packet.from_slice(read_result.packet())));
-            break;
-          }
-          case Transport::ReadResult::Nop:
-            break;
-          default:
-            UNREACHABLE();
-        }
-      }
-    }
-
-    return Status::OK();
-  }
-
-  Status on_read_mtproto_error(int32 error_code) {
-    if (error_code == -429) {
-      if (stats_callback_) {
-        stats_callback_->on_mtproto_error();
-      }
-      return Status::Error(500, PSLICE() << "MTProto error: " << error_code);
-    }
-    if (error_code == -404) {
-      return Status::Error(-404, PSLICE() << "MTProto error: " << error_code);
-    }
-    return Status::Error(PSLICE() << "MTProto error: " << error_code);
-  }
-
-  Status flush_write() {
-    for (auto &packet : to_send_) {
-      TRY_STATUS(do_send(packet.as_slice()));
-      if (packet.size() > 0 && stats_callback_) {
-        stats_callback_->on_write(packet.size());
-      }
-    }
-    to_send_.clear();
-    return Status::OK();
-  }
-
-  Status do_send(Slice data) {
-    DarwinHttp::post(PSLICE() << "http://" << ip_address_.get_ip_host() << ":" << ip_address_.get_port() << "/api",
-                     data, [answers = answers_](auto res) { answers->writer_put(std::move(res)); });
-    return Status::OK();
-  }
-
-  Status do_flush(const AuthKey &auth_key, Callback &callback) TD_WARN_UNUSED_RESULT {
-    if (has_error_) {
-      return Status::Error("Connection has already failed");
-    }
-
-    TRY_STATUS(flush_read(auth_key, callback));
-    TRY_STATUS(callback.before_write());
-    TRY_STATUS(flush_write());
-    return Status::OK();
-  }
-};
-#endif
-
-unique_ptr<RawConnection> RawConnection::create(IPAddress ip_address, BufferedFd<SocketFd> buffered_socket_fd,
-                                                TransportType transport_type,
-                                                unique_ptr<StatsCallback> stats_callback) {
-#if TD_DARWIN_WATCH_OS
-  return td::make_unique<RawConnectionHttp>(std::move(ip_address), std::move(stats_callback));
-#else
-  return td::make_unique<RawConnectionDefault>(std::move(buffered_socket_fd), std::move(transport_type),
-                                               std::move(stats_callback));
-#endif
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/RawConnection.h b/third-party/td/td/td/mtproto/RawConnection.h
deleted file mode 100644
index 250f52d16c..0000000000
--- a/third-party/td/td/td/mtproto/RawConnection.h
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/ConnectionManager.h"
-#include "td/mtproto/PacketInfo.h"
-#include "td/mtproto/TransportType.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-
-namespace td {
-namespace mtproto {
-
-class AuthKey;
-
-class RawConnection {
- public:
-  class StatsCallback {
-   public:
-    virtual ~StatsCallback() = default;
-    virtual void on_read(uint64 bytes) = 0;
-    virtual void on_write(uint64 bytes) = 0;
-
-    virtual void on_pong() = 0;   // called when we know that connection is alive
-    virtual void on_error() = 0;  // called on RawConnection error. Such error should be very rare on good connections.
-    virtual void on_mtproto_error() = 0;
-  };
-  RawConnection() = default;
-  RawConnection(const RawConnection &) = delete;
-  RawConnection &operator=(const RawConnection &) = delete;
-  virtual ~RawConnection();
-
-  static unique_ptr<RawConnection> create(IPAddress ip_address, BufferedFd<SocketFd> buffered_socket_fd,
-                                          TransportType transport_type, unique_ptr<StatsCallback> stats_callback);
-
-  virtual void set_connection_token(ConnectionManager::ConnectionToken connection_token) = 0;
-
-  virtual bool can_send() const = 0;
-  virtual TransportType get_transport_type() const = 0;
-  virtual size_t send_crypto(const Storer &storer, uint64 session_id, int64 salt, const AuthKey &auth_key,
-                             uint64 quick_ack_token) = 0;
-  virtual void send_no_crypto(const Storer &storer) = 0;
-
-  virtual PollableFdInfo &get_poll_info() = 0;
-  virtual StatsCallback *stats_callback() = 0;
-
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-    virtual Status on_raw_packet(const PacketInfo &packet_info, BufferSlice packet) = 0;
-    virtual Status on_quick_ack(uint64 quick_ack_token) {
-      return Status::Error("Quick acknowledgements aren't supported by the callback");
-    }
-    virtual Status before_write() {
-      return Status::OK();
-    }
-    virtual void on_read(size_t size) {
-    }
-  };
-
-  // NB: After first returned error, all subsequent calls will return error too.
-  virtual Status flush(const AuthKey &auth_key, Callback &callback) TD_WARN_UNUSED_RESULT = 0;
-  virtual bool has_error() const = 0;
-
-  virtual void close() = 0;
-
-  struct PublicFields {
-    uint32 extra{0};
-    string debug_str;
-    double rtt{0};
-  };
-
-  virtual PublicFields &extra() = 0;
-  virtual const PublicFields &extra() const = 0;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/SessionConnection.cpp b/third-party/td/td/td/mtproto/SessionConnection.cpp
deleted file mode 100644
index 898713bb25..0000000000
--- a/third-party/td/td/td/mtproto/SessionConnection.cpp
+++ /dev/null
@@ -1,1156 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/SessionConnection.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/CryptoStorer.h"
-#include "td/mtproto/mtproto_api.h"
-#include "td/mtproto/mtproto_api.hpp"
-#include "td/mtproto/PacketStorer.h"
-#include "td/mtproto/Transport.h"
-#include "td/mtproto/utils.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/Gzip.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/TlDowncastHelper.h"
-
-#include <algorithm>
-#include <iterator>
-#include <type_traits>
-
-namespace td {
-
-int VERBOSITY_NAME(mtproto) = VERBOSITY_NAME(DEBUG) + 7;
-
-namespace mtproto_api {
-
-const int32 msg_container::ID;
-
-class rpc_result {
- public:
-  static const int32 ID = -212046591;
-};
-
-}  // namespace mtproto_api
-
-namespace mtproto {
-/**
- * TODO-list.
- *
- * 1. Should I check input salt?
- *
- * 1. Cancellation of rpc request
- *  input:
- *   - rpc_drop_answer#58e4a740 req_msg_id:long = RpcDropAnswer;
- *  output:
- *   - rpc_answer_unknown#5e2ad36e = RpcDropAnswer;
- *    no ack
- *   - rpc_answer_dropped_running#cd78e586 = RpcDropAnswer;
- *    same answer will be returned to original query
- *    ack
- *   - rpc_answer_dropped#a43ad8b7 msg_id:long seq_no:int bytes:int = RpcDropAnswer;
- *    ack
- *  Alternative is destroy session
- *
- * 5. Destroy session
- * (?) when session will be destroyed otherwise
- *  Must be call in different session
- *  input:
- *   - destroy_session#e7512126 session_id:long = DestroySessionRes;
- *  output:
- *   - destroy_session_ok#e22045fc session_id:long = DestroySessionRes;
- *   - destroy_session_none#62d350c9 session_id:long = DestroySessionRes;
- *
-
- * DONE:
- * 3. Ping pong
- *  input:
- *   - ping#7abe77ec ping_id:long = Pong;
- *   - pong#347773c5 msg_id:long ping_id:long = Pong;
- *
- * 4. Ping + deferred connection closure
- *  input:
- *   - ping_delay_disconnect#f3427b8c ping_id:long disconnect_delay:int = Pong;
- *
- * 6. New session creation
- *  A notification about new session.
- *  It is reasonable to store unique_id with current session in order to process duplicated notifications only once.
- *
- *  Causes all messages older than first_msg_id to be re-sent and notifies about a gap in updates
- *  output:
- *   - new_session_created#9ec20908 first_msg_id:long unique_id:long server_salt:long = NewSession
- *
- *
- * 7. Containers
- *   I should pack output messages as containers
- *   - msg_container#73f1f8dc messages:vector message = MessageContainer;
- *     message msg_id:long seqno:int bytes:int body:Object = Message;
- *
- * 8. Packed Object
- *  I should pack big output messages with gzip
- *   - gzip_packed#3072cfa1 packed_data:string = Object;
- *
- * 9. Ack
- *  I should actually send acks
- *  (?) Does updates need ack
- *  - msgs_ack#62d6b459 msg_ids:Vector long = MsgsAck;
- *
- * 10. Errors
- *  output:
- *   - bad_msg_notification#a7eff811 bad_msg_id:long bad_msg_seqno:int error_code:int = BadMsgNotification;
- *   - bad_server_salt#edab447b bad_msg_id:long bad_msg_seqno:int error_code:int new_server_salt:long =
- *         BadMsgNotification;
- *
- *  error codes:
- *   16: msg_id is too low. -- lite resend. It will be automatically packed in a container. I hope.
- *   17: msg_id is too high. -- fail connection.
- *   18: msg_id % 4 != 0. -- Error and fail connection.
- *   19: container msg_id is the same as msg_id of a previously received message. MUST NEVER HAPPENS. Error and fail
- *   connection.
- *
- *   20: message is to old -- full resend. (or fail query, if we are afraid of double send)
- *
- *   32: seq_no is too low. (msg_id1 < msg_id2 <==> seq_no1 < seq_no2). Error and fail connection
- *   33: seq_no is too high. Error and fail connection.
- *   34: (?) an even msg_seqno expected (irrelevant message), but odd received. (Fail and call a developer...)
- *   35: (?) odd msg_seqno expected (relevant message), but even received (Fail and call a developer)
- *
- *   48: incorrect server salt (in bad_server_salt message)
- *
- *   64: (?) invalid container
- *
- * 2. Get future salts
- *  input:
- *   - get_future_salts#b921bd04 num:int = FutureSalts;
- *  output:
- *   - future_salts#ae500895 req_msg_id:long now:int salts:vector future_salt = FutureSalts;
- *     future_salt#0949d9dc valid_since:int valid_until:int salt:long = FutureSalt;
- *
- * 1. ping-pong
- * 3. Delayed ack.
- * 4. Delayed packet.
- * HTTP transport (support of several connections)
- * get future salts
- *
- * 11. Explicit request of messages states
- *  input:
- *   - msgs_state_req#da69fb52 msg_ids:Vector long = MsgsStateReq;
- * 12. States of messages in answer
- *  output:
- *   - msgs_state_info#04deb57d req_msg_id:long info:string = MsgsStateInfo;
- *  info contain one byte for each queired msg_id
- *  bytes:
- *    1: unknown message_id
- *    2: message not received (msg_id in stored range)
- *    3: message not receiver (msg_id is too high)
- *    4: message received. No extra ack will be sent
- *    +8: message is already acknowledged
- *    +16: message don't requires acknowledgement
- *    +32: RPC query contained in message being processed or the processing has already been completed
- *    +64: content-related response to message has already been generated
- *    +128: other party knows for a fact that message is already received
- *
- * 13. Voluntary Communication of Status of Messages
- *  output:
- *   - msgs_all_info#8cc0d131 msg_ids:Vector long info:string = MsgsAllInfo
- *
- */
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const SessionConnection::MsgInfo &info) {
-  return string_builder << "with " << info.message_id << " and seq_no " << info.seq_no;
-}
-
-unique_ptr<RawConnection> SessionConnection::move_as_raw_connection() {
-  was_moved_ = true;
-  return std::move(raw_connection_);
-}
-
-BufferSlice SessionConnection::as_buffer_slice(Slice packet) {
-  return current_buffer_slice_->from_slice(packet);
-}
-
-Status SessionConnection::parse_message(TlParser &parser, MsgInfo *info, Slice *packet, bool crypto_flag) {
-  // msg_id:long seqno:int bytes:int
-  parser.check_len(sizeof(int64) + (crypto_flag ? sizeof(int32) : 0) + sizeof(int32));
-  if (parser.get_error() != nullptr) {
-    return Status::Error(PSLICE() << "Failed to parse mtproto_api::message: " << parser.get_error());
-  }
-  info->message_id = MessageId(static_cast<uint64>(parser.fetch_long_unsafe()));
-  if (crypto_flag) {
-    info->seq_no = parser.fetch_int_unsafe();
-  }
-  uint32 bytes = parser.fetch_int_unsafe();
-
-  if (bytes % sizeof(int32) != 0) {
-    return Status::Error(PSLICE() << "Failed to parse mtproto_api::message: size of message [" << bytes
-                                  << "] is not divisible by 4");
-  }
-
-  *packet = parser.template fetch_string_raw<Slice>(bytes);
-  if (parser.get_error() != nullptr) {
-    return Status::Error(PSLICE() << "Failed to parse mtproto_api::message: " << parser.get_error());
-  }
-
-  info->size = bytes;
-
-  return Status::OK();
-}
-
-Status SessionConnection::on_packet_container(const MsgInfo &info, Slice packet) {
-  auto old_container_message_id = container_message_id_;
-  container_message_id_ = info.message_id;
-  SCOPE_EXIT {
-    container_message_id_ = old_container_message_id;
-  };
-
-  TlParser parser(packet);
-  int32 size = parser.fetch_int();
-  if (parser.get_error()) {
-    return Status::Error(PSLICE() << "Failed to parse mtproto_api::rpc_container: " << parser.get_error());
-  }
-  VLOG(mtproto) << "Receive container " << container_message_id_ << " of size " << size;
-  for (int i = 0; i < size; i++) {
-    TRY_STATUS(parse_packet(parser));
-  }
-  return Status::OK();
-}
-
-void SessionConnection::reset_server_time_difference(MessageId message_id) {
-  VLOG(mtproto) << "Reset server time difference";
-  auth_data_->reset_server_time_difference(static_cast<uint32>(message_id.get() >> 32) - Time::now());
-  callback_->on_server_time_difference_updated(true);
-}
-
-Status SessionConnection::on_packet_rpc_result(const MsgInfo &info, Slice packet) {
-  TlParser parser(packet);
-  auto req_msg_id = static_cast<uint64>(parser.fetch_long());
-  if (parser.get_error()) {
-    return Status::Error(PSLICE() << "Failed to parse mtproto_api::rpc_result: " << parser.get_error());
-  }
-  if (req_msg_id == 0) {
-    LOG(ERROR) << "Receive an update in rpc_result " << info;
-    return Status::Error("Receive an update in rpc_result");
-  }
-  VLOG(mtproto) << "Receive result for request with " << MessageId(req_msg_id) << ' ' << info;
-
-  if (info.message_id.get() < req_msg_id - (static_cast<uint64>(15) << 32)) {
-    reset_server_time_difference(info.message_id);
-  }
-
-  switch (parser.fetch_int()) {
-    case mtproto_api::rpc_error::ID: {
-      mtproto_api::rpc_error rpc_error(parser);
-      if (parser.get_error()) {
-        return Status::Error(PSLICE() << "Failed to parse mtproto_api::rpc_error: " << parser.get_error());
-      }
-      callback_->on_message_result_error(MessageId(req_msg_id), rpc_error.error_code_, rpc_error.error_message_.str());
-      return Status::OK();
-    }
-    case mtproto_api::gzip_packed::ID: {
-      mtproto_api::gzip_packed gzip(parser);
-      if (parser.get_error()) {
-        return Status::Error(PSLICE() << "Failed to parse mtproto_api::gzip_packed: " << parser.get_error());
-      }
-      // yep, gzip in rpc_result
-      BufferSlice object = gzdecode(gzip.packed_data_);
-      // send header no more optimization
-      return callback_->on_message_result_ok(MessageId(req_msg_id), std::move(object), info.size);
-    }
-    default:
-      packet.remove_prefix(sizeof(req_msg_id));
-      return callback_->on_message_result_ok(MessageId(req_msg_id), as_buffer_slice(packet), info.size);
-  }
-}
-
-template <class T>
-Status SessionConnection::on_packet(const MsgInfo &info, const T &packet) {
-  LOG(ERROR) << "Unsupported: " << to_string(packet);
-  return Status::OK();
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::destroy_auth_key_ok &destroy_auth_key) {
-  VLOG(mtproto) << "Receive destroy_auth_key_ok " << info;
-  return on_destroy_auth_key(destroy_auth_key);
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::destroy_auth_key_none &destroy_auth_key) {
-  VLOG(mtproto) << "Receive destroy_auth_key_none " << info;
-  return on_destroy_auth_key(destroy_auth_key);
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::destroy_auth_key_fail &destroy_auth_key) {
-  VLOG(mtproto) << "Receive destroy_auth_key_fail " << info;
-  return on_destroy_auth_key(destroy_auth_key);
-}
-
-Status SessionConnection::on_destroy_auth_key(const mtproto_api::DestroyAuthKeyRes &destroy_auth_key) {
-  if (!need_destroy_auth_key_) {
-    LOG(ERROR) << "Receive unexpected " << oneline(to_string(destroy_auth_key));
-    return Status::OK();
-  }
-  return callback_->on_destroy_auth_key();
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::new_session_created &new_session_created) {
-  auto first_message_id = MessageId(static_cast<uint64>(new_session_created.first_msg_id_));
-  VLOG(mtproto) << "Receive new_session_created " << info << ": [first " << first_message_id
-                << "] [unique_id:" << new_session_created.unique_id_ << ']';
-
-  auto it = service_queries_.find(first_message_id);
-  if (it != service_queries_.end()) {
-    first_message_id = it->second.container_message_id_;
-    LOG(INFO) << "Update first_message_id to container's " << first_message_id;
-  }
-
-  callback_->on_new_session_created(new_session_created.unique_id_, first_message_id);
-  return Status::OK();
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info,
-                                    const mtproto_api::bad_msg_notification &bad_msg_notification) {
-  MsgInfo bad_info{MessageId(static_cast<uint64>(bad_msg_notification.bad_msg_id_)),
-                   bad_msg_notification.bad_msg_seqno_, 0};
-  enum Code {
-    MsgIdTooLow = 16,
-    MsgIdTooHigh = 17,
-    MsgIdMod4 = 18,
-    MsgIdCollision = 19,
-
-    MsgIdTooOld = 20,
-
-    SeqNoTooLow = 32,
-    SeqNoTooHigh = 33,
-    SeqNoNotEven = 34,
-    SeqNoNotOdd = 35,
-
-    InvalidContainer = 64
-  };
-  Slice common = ". BUG! CALL FOR A DEVELOPER! Session will be closed";
-  switch (bad_msg_notification.error_code_) {
-    case MsgIdTooLow:
-      LOG(WARNING) << bad_info << ": MessageId is too low. Message will be re-sent";
-      // time will be updated automagically
-      on_message_failed(bad_info.message_id, Status::Error("MessageId is too low"));
-      break;
-    case MsgIdTooHigh:
-      LOG(WARNING) << bad_info << ": MessageId is too high. Session will be closed";
-      // All this queries will be re-sent by parent
-      to_send_.clear();
-      reset_server_time_difference(info.message_id);
-      callback_->on_session_failed(Status::Error("MessageId is too high"));
-      return Status::Error("MessageId is too high");
-    case MsgIdMod4:
-      LOG(ERROR) << bad_info << ": MessageId is not divisible by 4" << common;
-      return Status::Error("MessageId is not divisible by 4");
-    case MsgIdCollision:
-      LOG(ERROR) << bad_info << ": Container and older message MessageId collision" << common;
-      return Status::Error("Container and older message MessageId collision");
-    case MsgIdTooOld:
-      LOG(WARNING) << bad_info << ": MessageId is too old. Message will be re-sent";
-      on_message_failed(bad_info.message_id, Status::Error("MessageId is too old"));
-      break;
-    case SeqNoTooLow:
-      LOG(ERROR) << bad_info << ": SeqNo is too low" << common;
-      return Status::Error("SeqNo is too low");
-    case SeqNoTooHigh:
-      LOG(ERROR) << bad_info << ": SeqNo is too high" << common;
-      return Status::Error("SeqNo is too high");
-    case SeqNoNotEven:
-      LOG(ERROR) << bad_info << ": SeqNo is not even for an irrelevant message" << common;
-      return Status::Error("SeqNo is not even for an irrelevant message");
-    case SeqNoNotOdd:
-      LOG(ERROR) << bad_info << ": SeqNo is not odd for a relevant message" << common;
-      return Status::Error("SeqNo is not odd for a relevant message");
-    case InvalidContainer:
-      LOG(ERROR) << bad_info << ": Invalid Container" << common;
-      return Status::Error("Invalid Container");
-    default:
-      LOG(ERROR) << bad_info << ": Unknown error [code:" << bad_msg_notification.error_code_ << "]" << common;
-      return Status::Error("Unknown error code");
-  }
-  return Status::OK();
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::bad_server_salt &bad_server_salt) {
-  MsgInfo bad_info{MessageId(static_cast<uint64>(bad_server_salt.bad_msg_id_)), bad_server_salt.bad_msg_seqno_, 0};
-  VLOG(mtproto) << "Receive bad_server_salt " << info << ": " << bad_info;
-  auth_data_->set_server_salt(bad_server_salt.new_server_salt_, Time::now_cached());
-  callback_->on_server_salt_updated();
-
-  on_message_failed(bad_info.message_id, Status::Error("Bad server salt"));
-  return Status::OK();
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::msgs_ack &msgs_ack) {
-  auto message_ids = transform(msgs_ack.msg_ids_, [](int64 msg_id) { return MessageId(static_cast<uint64>(msg_id)); });
-  VLOG(mtproto) << "Receive msgs_ack " << info << ": " << message_ids;
-  for (auto message_id : message_ids) {
-    callback_->on_message_ack(message_id);
-  }
-  return Status::OK();
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::gzip_packed &gzip_packed) {
-  BufferSlice res = gzdecode(gzip_packed.packed_data_);
-  auto guard = set_buffer_slice(&res);
-  return on_slice_packet(info, res.as_slice());
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::pong &pong) {
-  VLOG(mtproto) << "Receive pong " << info;
-  if (info.message_id.get() < static_cast<uint64>(pong.msg_id_) - (static_cast<uint64>(15) << 32)) {
-    reset_server_time_difference(info.message_id);
-  }
-
-  if (sent_destroy_auth_key_ && destroy_auth_key_send_time_ < Time::now() - 60) {
-    return Status::Error(PSLICE() << "No response for destroy_auth_key for "
-                                  << (Time::now() - destroy_auth_key_send_time_) << " seconds from auth key "
-                                  << auth_data_->get_auth_key().id());
-  }
-
-  last_pong_at_ = Time::now_cached();
-  real_last_pong_at_ = last_pong_at_;
-  auto get_time = [](int64 msg_id) {
-    return static_cast<double>(msg_id) / (static_cast<uint64>(1) << 32);
-  };
-  return callback_->on_pong(get_time(pong.ping_id_), get_time(pong.msg_id_),
-                            auth_data_->get_server_time(Time::now_cached()));
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::future_salts &salts) {
-  vector<ServerSalt> new_salts;
-  for (auto &it : salts.salts_) {
-    new_salts.push_back(
-        ServerSalt{it->salt_, static_cast<double>(it->valid_since_), static_cast<double>(it->valid_until_)});
-  }
-  auto now = Time::now_cached();
-  auth_data_->set_future_salts(new_salts, now);
-  VLOG(mtproto) << "Receive future_salts " << info << ": is_valid = " << auth_data_->is_server_salt_valid(now)
-                << ", has_salt = " << auth_data_->has_salt(now)
-                << ", need_future_salts = " << auth_data_->need_future_salts(now);
-  callback_->on_server_salt_updated();
-
-  return Status::OK();
-}
-
-Status SessionConnection::on_msgs_state_info(const vector<int64> &msg_ids, Slice info) {
-  if (msg_ids.size() != info.size()) {
-    return Status::Error(PSLICE() << tag("message count", msg_ids.size()) << " != " << tag("info.size()", info.size()));
-  }
-  size_t i = 0;
-  for (auto msg_id : msg_ids) {
-    callback_->on_message_info(MessageId(static_cast<uint64>(msg_id)), info[i], MessageId(), 0, 1);
-    i++;
-  }
-  return Status::OK();
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::msgs_state_info &msgs_state_info) {
-  auto message_id = MessageId(static_cast<uint64>(msgs_state_info.req_msg_id_));
-  auto it = service_queries_.find(message_id);
-  if (it == service_queries_.end()) {
-    return Status::Error("Unknown msgs_state_info");
-  }
-  auto query = std::move(it->second);
-  service_queries_.erase(it);
-
-  if (query.type_ != ServiceQuery::GetStateInfo) {
-    return Status::Error("Receive msgs_state_info in response not to GetStateInfo");
-  }
-  VLOG(mtproto) << "Receive msgs_state_info " << info;
-  return on_msgs_state_info(query.msg_ids_, msgs_state_info.info_);
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::msgs_all_info &msgs_all_info) {
-  VLOG(mtproto) << "Receive msgs_all_info " << info;
-  return on_msgs_state_info(msgs_all_info.msg_ids_, msgs_all_info.info_);
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::msg_detailed_info &msg_detailed_info) {
-  VLOG(mtproto) << "Receive msg_detailed_info " << info;
-  callback_->on_message_info(MessageId(static_cast<uint64>(msg_detailed_info.msg_id_)), msg_detailed_info.status_,
-                             MessageId(static_cast<uint64>(msg_detailed_info.answer_msg_id_)), msg_detailed_info.bytes_,
-                             2);
-  return Status::OK();
-}
-
-Status SessionConnection::on_packet(const MsgInfo &info,
-                                    const mtproto_api::msg_new_detailed_info &msg_new_detailed_info) {
-  VLOG(mtproto) << "Receive msg_new_detailed_info " << info;
-  callback_->on_message_info(MessageId(), 0, MessageId(static_cast<uint64>(msg_new_detailed_info.answer_msg_id_)),
-                             msg_new_detailed_info.bytes_, 0);
-  return Status::OK();
-}
-
-Status SessionConnection::on_slice_packet(const MsgInfo &info, Slice packet) {
-  if (info.seq_no & 1) {
-    send_ack(info.message_id);
-  }
-  if (packet.size() < 4) {
-    callback_->on_session_failed(Status::Error("Receive too small packet"));
-    return Status::Error(PSLICE() << "Receive packet of size " << packet.size());
-  }
-
-  int32 constructor_id = as<int32>(packet.begin());
-  if (constructor_id == mtproto_api::msg_container::ID) {
-    return on_packet_container(info, packet.substr(4));
-  }
-  if (constructor_id == mtproto_api::rpc_result::ID) {
-    return on_packet_rpc_result(info, packet.substr(4));
-  }
-
-  TlDowncastHelper<mtproto_api::Object> helper(constructor_id);
-  Status status;
-  bool is_mtproto_api = downcast_call(static_cast<mtproto_api::Object &>(helper), [&](auto &dummy) {
-    // a constructor from mtproto_api
-    using Type = std::decay_t<decltype(dummy)>;
-    TlParser parser(packet.substr(4));
-    auto object = Type::fetch(parser);
-    parser.fetch_end();
-    if (parser.get_error()) {
-      status = parser.get_status();
-    } else {
-      status = this->on_packet(info, static_cast<const Type &>(*object));
-    }
-  });
-  if (is_mtproto_api) {
-    return status;
-  }
-
-  auto get_update_description = [&] {
-    return PSTRING() << "update from " << get_name() << " with auth key " << auth_data_->get_auth_key().id()
-                     << " active for " << (Time::now() - created_at_) << " seconds in container "
-                     << container_message_id_ << " from session " << auth_data_->get_session_id() << ' ' << info
-                     << ", main " << main_message_id_ << " and original size = " << info.size;
-  };
-
-  // It is an update... I hope.
-  status = auth_data_->check_update(info.message_id);
-  auto recheck_status = auth_data_->recheck_update(info.message_id);
-  if (recheck_status.is_error() && recheck_status.code() == 2) {
-    LOG(WARNING) << "Receive very old " << get_update_description() << ": " << status << ' ' << recheck_status;
-  }
-  if (status.is_error()) {
-    if (status.code() == 2) {
-      LOG(WARNING) << "Receive too old " << get_update_description() << ": " << status;
-      callback_->on_session_failed(Status::Error("Receive too old update"));
-      return status;
-    }
-    VLOG(mtproto) << "Skip " << get_update_description() << ": " << status;
-    return Status::OK();
-  } else {
-    VLOG(mtproto) << "Receive " << get_update_description();
-    return callback_->on_update(as_buffer_slice(packet));
-  }
-}
-
-Status SessionConnection::parse_packet(TlParser &parser) {
-  MsgInfo info;
-  Slice packet;
-  TRY_STATUS(parse_message(parser, &info, &packet, true));
-  return on_slice_packet(info, packet);
-}
-
-Status SessionConnection::on_main_packet(const PacketInfo &packet_info, Slice packet) {
-  // Update pong here too. Real pong can be delayed by many big packets
-  last_pong_at_ = Time::now_cached();
-  real_last_pong_at_ = last_pong_at_;
-
-  if (!connected_flag_) {
-    connected_flag_ = true;
-    callback_->on_connected();
-  }
-
-  VLOG(raw_mtproto) << "Receive packet of size " << packet.size() << ':' << format::as_hex_dump<4>(packet);
-  VLOG(mtproto) << "Receive packet with " << packet_info.message_id << " and seq_no " << packet_info.seq_no
-                << " of size " << packet.size();
-
-  if (packet_info.no_crypto_flag) {
-    return Status::Error("Unencrypted packet");
-  }
-
-  TlParser parser(packet);
-  TRY_STATUS(parse_packet(parser));
-  parser.fetch_end();
-  if (parser.get_error()) {
-    return Status::Error(PSLICE() << "Failed to parse packet: " << parser.get_error());
-  }
-  return Status::OK();
-}
-
-void SessionConnection::on_message_failed(MessageId message_id, Status status) {
-  callback_->on_message_failed(message_id, std::move(status));
-
-  sent_destroy_auth_key_ = false;
-  destroy_auth_key_send_time_ = 0.0;
-
-  if (message_id == last_ping_message_id_ || message_id == last_ping_container_message_id_) {
-    // restart ping immediately
-    last_ping_at_ = 0;
-    last_ping_message_id_ = {};
-    last_ping_container_message_id_ = {};
-  }
-
-  auto cit = container_to_service_message_id_.find(message_id);
-  if (cit != container_to_service_message_id_.end()) {
-    auto message_ids = cit->second;
-    for (auto inner_message_id : message_ids) {
-      on_message_failed_inner(inner_message_id);
-    }
-  } else {
-    on_message_failed_inner(message_id);
-  }
-}
-
-void SessionConnection::on_message_failed_inner(MessageId message_id) {
-  auto it = service_queries_.find(message_id);
-  if (it == service_queries_.end()) {
-    return;
-  }
-  auto query = std::move(it->second);
-  service_queries_.erase(it);
-
-  switch (query.type_) {
-    case ServiceQuery::ResendAnswer:
-      for (auto msg_id : query.msg_ids_) {
-        resend_answer(MessageId(static_cast<uint64>(msg_id)));
-      }
-      break;
-    case ServiceQuery::GetStateInfo:
-      for (auto msg_id : query.msg_ids_) {
-        get_state_info(MessageId(static_cast<uint64>(msg_id)));
-      }
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-bool SessionConnection::must_flush_packet() {
-  flush_packet_at_ = 0;
-
-  // we need key to send just something
-  if (!auth_data_->has_auth_key(Time::now_cached())) {
-    return false;
-  }
-
-  // transport is ready
-  if (!raw_connection_->can_send()) {
-    return false;
-  }
-
-  bool has_salt = auth_data_->has_salt(Time::now_cached());
-  // do not send anything in long poll connection before we have salt
-  if (mode_ == Mode::HttpLongPoll && !has_salt) {
-    return false;
-  }
-
-  // http_wait
-  if (mode_ == Mode::HttpLongPoll) {
-    return true;
-  }
-  // queries and acks (+ resend & get_info)
-  if (has_salt && force_send_at_ != 0) {
-    if (Time::now_cached() > force_send_at_) {
-      return true;
-    } else {
-      relax_timeout_at(&flush_packet_at_, force_send_at_);
-    }
-  }
-
-  // ping
-  if (has_salt) {
-    if (must_ping()) {
-      return true;
-    }
-    relax_timeout_at(&flush_packet_at_, last_ping_at_ + ping_must_delay());
-  }
-  // get_future_salt
-  if (!has_salt) {
-    if (last_get_future_salt_at_ == 0) {
-      return true;
-    }
-    auto get_future_salts_at = last_get_future_salt_at_ + 60;
-    if (get_future_salts_at < Time::now_cached()) {
-      return true;
-    }
-    relax_timeout_at(&flush_packet_at_, get_future_salts_at);
-  }
-
-  if (has_salt && need_destroy_auth_key_ && !sent_destroy_auth_key_) {
-    return true;
-  }
-
-  return false;
-}
-
-Status SessionConnection::before_write() {
-  CHECK(raw_connection_);
-  while (must_flush_packet()) {
-    flush_packet();
-  }
-  return Status::OK();
-}
-
-Status SessionConnection::on_raw_packet(const PacketInfo &packet_info, BufferSlice packet) {
-  auto old_main_message_id = main_message_id_;
-  main_message_id_ = packet_info.message_id;
-  SCOPE_EXIT {
-    main_message_id_ = old_main_message_id;
-  };
-
-  if (packet_info.no_crypto_flag) {
-    return Status::Error("Unexpected unencrypted packet");
-  }
-
-  bool time_difference_was_updated = false;
-  auto status = auth_data_->check_packet(packet_info.session_id, packet_info.message_id, Time::now_cached(),
-                                         time_difference_was_updated);
-  if (time_difference_was_updated) {
-    callback_->on_server_time_difference_updated(false);
-  }
-  if (status.is_error()) {
-    if (status.code() == 1) {
-      LOG(INFO) << "Packet is ignored: " << status;
-      send_ack(packet_info.message_id);
-      return Status::OK();
-    } else if (status.code() == 2) {
-      LOG(WARNING) << "Receive too old packet: " << status;
-      callback_->on_session_failed(Status::Error("Receive too old packet"));
-      return status;
-    } else {
-      return status;
-    }
-  }
-
-  auto guard = set_buffer_slice(&packet);
-  TRY_STATUS(on_main_packet(packet_info, packet.as_slice()));
-  return Status::OK();
-}
-
-Status SessionConnection::on_quick_ack(uint64 quick_ack_token) {
-  callback_->on_message_ack(MessageId(quick_ack_token));
-  return Status::OK();
-}
-
-void SessionConnection::on_read(size_t size) {
-  last_read_at_ = Time::now_cached();
-  real_last_read_at_ = last_read_at_;
-  last_read_size_ += size;
-}
-
-SessionConnection::SessionConnection(Mode mode, unique_ptr<RawConnection> raw_connection, AuthData *auth_data)
-    : random_delay_(Random::fast(0, 5000000) * 1e-6)
-    , state_(Init)
-    , mode_(mode)
-    , created_at_(Time::now())
-    , raw_connection_(std::move(raw_connection))
-    , auth_data_(auth_data) {
-  CHECK(raw_connection_);
-  CHECK(auth_data_ != nullptr);
-}
-
-PollableFdInfo &SessionConnection::get_poll_info() {
-  CHECK(raw_connection_);
-  return raw_connection_->get_poll_info();
-}
-
-Status SessionConnection::init() {
-  CHECK(state_ == Init);
-  last_pong_at_ = Time::now_cached();
-  last_read_at_ = Time::now_cached();
-  state_ = Run;
-  return Status::OK();
-}
-
-void SessionConnection::set_online(bool online_flag, bool is_main) {
-  LOG(DEBUG) << "Set online to " << online_flag;
-  bool need_ping = online_flag || !online_flag_;
-  online_flag_ = online_flag;
-  is_main_ = is_main;
-  auto now = Time::now();
-  if (need_ping) {
-    last_pong_at_ = now - ping_disconnect_delay() + rtt();
-    last_read_at_ = now - read_disconnect_delay() + rtt();
-  } else {
-    last_pong_at_ = now;
-    last_read_at_ = now;
-  }
-  last_ping_at_ = 0;
-  last_ping_message_id_ = {};
-  last_ping_container_message_id_ = {};
-}
-
-void SessionConnection::do_close(Status status) {
-  state_ = Closed;
-  // NB: this could be destroyed after on_closed
-  callback_->on_closed(std::move(status));
-}
-
-void SessionConnection::send_crypto(const Storer &storer, uint64 quick_ack_token) {
-  CHECK(state_ != Closed);
-  last_write_size_ += raw_connection_->send_crypto(storer, auth_data_->get_session_id(),
-                                                   auth_data_->get_server_salt(Time::now_cached()),
-                                                   auth_data_->get_auth_key(), quick_ack_token);
-}
-
-MessageId SessionConnection::send_query(BufferSlice buffer, bool gzip_flag, MessageId message_id,
-                                        vector<MessageId> invoke_after_message_ids, bool use_quick_ack) {
-  CHECK(mode_ != Mode::HttpLongPoll);  // "LongPoll connection is only for http_wait"
-  if (message_id == MessageId()) {
-    message_id = auth_data_->next_message_id(Time::now_cached());
-  }
-  auto seq_no = auth_data_->next_seq_no(true);
-  if (to_send_.empty()) {
-    send_before(Time::now_cached() + QUERY_DELAY);
-  }
-  to_send_.push_back(MtprotoQuery{message_id, seq_no, std::move(buffer), gzip_flag, std::move(invoke_after_message_ids),
-                                  use_quick_ack});
-  VLOG(mtproto) << "Invoke query with " << message_id << " and seq_no " << seq_no << " of size "
-                << to_send_.back().packet.size() << " after " << invoke_after_message_ids
-                << (use_quick_ack ? " with quick ack" : "");
-  return message_id;
-}
-
-void SessionConnection::get_state_info(MessageId message_id) {
-  if (to_get_state_info_message_ids_.empty()) {
-    send_before(Time::now_cached());
-  }
-  to_get_state_info_message_ids_.push_back(message_id);
-}
-
-void SessionConnection::resend_answer(MessageId message_id) {
-  if (to_resend_answer_message_ids_.empty()) {
-    send_before(Time::now_cached() + RESEND_ANSWER_DELAY);
-  }
-  to_resend_answer_message_ids_.push_back(message_id);
-}
-
-void SessionConnection::cancel_answer(MessageId message_id) {
-  if (to_cancel_answer_message_ids_.empty()) {
-    send_before(Time::now_cached() + RESEND_ANSWER_DELAY);
-  }
-  to_cancel_answer_message_ids_.push_back(message_id);
-}
-
-void SessionConnection::destroy_key() {
-  LOG(INFO) << "Set need_destroy_auth_key to true";
-  need_destroy_auth_key_ = true;
-}
-
-std::pair<MessageId, BufferSlice> SessionConnection::encrypted_bind(int64 perm_key, int64 nonce, int32 expires_at) {
-  int64 temp_key = auth_data_->get_tmp_auth_key().id();
-
-  mtproto_api::bind_auth_key_inner object(nonce, temp_key, perm_key, auth_data_->get_session_id(), expires_at);
-  auto object_storer = TLObjectStorer<mtproto_api::bind_auth_key_inner>(object);
-  auto size = object_storer.size();
-  auto object_packet = BufferWriter{size, 0, 0};
-  auto real_size = object_storer.store(object_packet.as_mutable_slice().ubegin());
-  CHECK(size == real_size);
-
-  MtprotoQuery query{
-      auth_data_->next_message_id(Time::now_cached()), 0, object_packet.as_buffer_slice(), false, {}, false};
-  PacketStorer<QueryImpl> query_storer(query, Slice());
-
-  const AuthKey &main_auth_key = auth_data_->get_main_auth_key();
-  PacketInfo packet_info;
-  packet_info.version = 1;
-  packet_info.no_crypto_flag = false;
-  packet_info.salt = Random::secure_int64();
-  packet_info.session_id = Random::secure_int64();
-  auto packet = Transport::write(query_storer, main_auth_key, &packet_info);
-  return std::make_pair(query.message_id, packet.as_buffer_slice());
-}
-
-void SessionConnection::force_ack() {
-  if (!to_ack_message_ids_.empty()) {
-    send_before(Time::now_cached());
-  }
-}
-
-void SessionConnection::send_ack(MessageId message_id) {
-  VLOG(mtproto) << "Send ack for " << message_id;
-  if (to_ack_message_ids_.empty()) {
-    send_before(Time::now_cached() + ACK_DELAY);
-  }
-  // an easiest way to eliminate duplicated acknowledgements for gzipped packets
-  if (to_ack_message_ids_.empty() || to_ack_message_ids_.back() != message_id) {
-    to_ack_message_ids_.push_back(message_id);
-
-    constexpr size_t MAX_UNACKED_PACKETS = 100;
-    if (to_ack_message_ids_.size() >= MAX_UNACKED_PACKETS) {
-      send_before(Time::now_cached());
-    }
-  }
-}
-
-// don't send ping in poll mode
-bool SessionConnection::may_ping() const {
-  return last_ping_at_ == 0 || (mode_ != Mode::HttpLongPoll && last_ping_at_ + ping_may_delay() < Time::now_cached());
-}
-
-bool SessionConnection::must_ping() const {
-  return last_ping_at_ == 0 || (mode_ != Mode::HttpLongPoll && last_ping_at_ + ping_must_delay() < Time::now_cached());
-}
-
-void SessionConnection::flush_packet() {
-  bool has_salt = auth_data_->has_salt(Time::now_cached());
-  // ping
-  MessageId container_message_id;
-  int64 ping_id = 0;
-  if (has_salt && may_ping()) {
-    last_ping_at_ = Time::now_cached();
-    ping_id = auth_data_->next_message_id(last_ping_at_).get();
-  }
-
-  // http_wait
-  int max_delay = -1;
-  int max_after = -1;
-  int max_wait = -1;
-  if (mode_ == Mode::HttpLongPoll) {
-    max_delay = HTTP_MAX_DELAY;
-    max_after = HTTP_MAX_AFTER;
-    auto time_to_disconnect =
-        min(ping_disconnect_delay() + last_pong_at_, read_disconnect_delay() + last_read_at_) - Time::now_cached();
-    max_wait = static_cast<int>(1000 * clamp(time_to_disconnect - rtt(), 0.1, http_max_wait()));
-  } else if (mode_ == Mode::Http) {
-    max_delay = HTTP_MAX_DELAY;
-    max_after = HTTP_MAX_AFTER;
-    max_wait = 0;
-  }
-
-  // future salts
-  int future_salt_n = 0;
-  if (mode_ != Mode::HttpLongPoll) {
-    if (auth_data_->need_future_salts(Time::now_cached()) &&
-        (last_get_future_salt_at_ == 0 || last_get_future_salt_at_ + 60 < Time::now_cached())) {
-      last_get_future_salt_at_ = Time::now_cached();
-      future_salt_n = 64;
-    }
-  }
-
-  static constexpr size_t MAX_QUERY_COUNT = 1000;
-  size_t send_till = 0;
-  size_t send_size = 0;
-  if (has_salt) {
-    // send at most MAX_QUERY_COUNT queries, of total size up to 2^15
-    while (send_till < to_send_.size() && send_till < MAX_QUERY_COUNT && send_size < (1 << 15)) {
-      send_size += to_send_[send_till].packet.size();
-      send_till++;
-    }
-  }
-  vector<MtprotoQuery> queries;
-  if (send_till == to_send_.size()) {
-    queries = std::move(to_send_);
-  } else if (send_till != 0) {
-    queries.reserve(send_till);
-    std::move(to_send_.begin(), to_send_.begin() + send_till, std::back_inserter(queries));
-    to_send_.erase(to_send_.begin(), to_send_.begin() + send_till);
-  }
-
-  bool destroy_auth_key = need_destroy_auth_key_ && !sent_destroy_auth_key_;
-
-  if (queries.empty() && to_ack_message_ids_.empty() && ping_id == 0 && max_delay < 0 && future_salt_n == 0 &&
-      to_resend_answer_message_ids_.empty() && to_cancel_answer_message_ids_.empty() &&
-      to_get_state_info_message_ids_.empty() && !destroy_auth_key) {
-    force_send_at_ = 0;
-    return;
-  }
-
-  if (destroy_auth_key && !sent_destroy_auth_key_) {
-    sent_destroy_auth_key_ = true;
-    destroy_auth_key_send_time_ = Time::now();
-  }
-
-  VLOG(mtproto) << "Sent packet: " << tag("query_count", queries.size()) << tag("ack_count", to_ack_message_ids_.size())
-                << tag("ping", ping_id != 0) << tag("http_wait", max_delay >= 0)
-                << tag("future_salt", future_salt_n > 0) << tag("get_info", to_get_state_info_message_ids_.size())
-                << tag("resend", to_resend_answer_message_ids_.size())
-                << tag("cancel", to_cancel_answer_message_ids_.size()) << tag("destroy_key", destroy_auth_key)
-                << tag("auth_key_id", auth_data_->get_auth_key().id());
-
-  auto cut_tail = [](vector<MessageId> &message_ids, size_t size, Slice name) {
-    if (size >= message_ids.size()) {
-      auto result = transform(message_ids, [](MessageId message_id) { return static_cast<int64>(message_id.get()); });
-      message_ids.clear();
-      return result;
-    }
-    LOG(WARNING) << "Too many message identifiers in container " << name << ": " << message_ids.size() << " instead of "
-                 << size;
-    auto new_size = message_ids.size() - size;
-    vector<int64> result(size);
-    for (size_t i = 0; i < size; i++) {
-      result[i] = static_cast<int64>(message_ids[i + new_size].get());
-    }
-    message_ids.resize(new_size);
-    return result;
-  };
-
-  // no more than 8192 message identifiers per container..
-  auto to_resend_answer = cut_tail(to_resend_answer_message_ids_, 8192, "resend_answer");
-  MessageId resend_answer_message_id;
-  CHECK(queries.size() <= MAX_QUERY_COUNT);
-  auto to_cancel_answer = cut_tail(to_cancel_answer_message_ids_, MAX_QUERY_COUNT - queries.size(), "cancel_answer");
-  auto to_get_state_info = cut_tail(to_get_state_info_message_ids_, 8192, "get_state_info");
-  MessageId get_state_info_message_id;
-  auto to_ack = cut_tail(to_ack_message_ids_, 8192, "ack");
-  MessageId ping_message_id;
-
-  bool use_quick_ack = any_of(queries, [](const auto &query) { return query.use_quick_ack; });
-
-  {
-    // LOG(ERROR) << (auth_data_->get_header().empty() ? '-' : '+');
-    MessageId parent_message_id;
-    auto storer = PacketStorer<CryptoImpl>(
-        queries, auth_data_->get_header(), std::move(to_ack), ping_id, static_cast<int>(ping_disconnect_delay() + 2.0),
-        max_delay, max_after, max_wait, future_salt_n, to_get_state_info, to_resend_answer, to_cancel_answer,
-        destroy_auth_key, auth_data_, &container_message_id, &get_state_info_message_id, &resend_answer_message_id,
-        &ping_message_id, &parent_message_id);
-
-    auto quick_ack_token = use_quick_ack ? parent_message_id.get() : 0;
-    send_crypto(storer, quick_ack_token);
-  }
-
-  if (resend_answer_message_id != MessageId()) {
-    service_queries_.emplace(resend_answer_message_id, ServiceQuery{ServiceQuery::ResendAnswer, container_message_id,
-                                                                    std::move(to_resend_answer)});
-  }
-  if (get_state_info_message_id != MessageId()) {
-    service_queries_.emplace(get_state_info_message_id, ServiceQuery{ServiceQuery::GetStateInfo, container_message_id,
-                                                                     std::move(to_get_state_info)});
-  }
-  if (ping_id != 0) {
-    last_ping_container_message_id_ = container_message_id;
-    last_ping_message_id_ = ping_message_id;
-  }
-
-  if (container_message_id != MessageId()) {
-    auto message_ids = transform(queries, [](const MtprotoQuery &x) { return x.message_id; });
-
-    // some acks may be lost here. Nobody will resend them if something goes wrong with query.
-    // It is mostly problem for server. We will just drop this answers in next connection
-    //
-    // get future salt too.
-    // So I will re-ask salt if have no answer in 60 second.
-    callback_->on_container_sent(container_message_id, std::move(message_ids));
-
-    if (resend_answer_message_id != MessageId()) {
-      container_to_service_message_id_[container_message_id].push_back(resend_answer_message_id);
-    }
-    if (get_state_info_message_id != MessageId()) {
-      container_to_service_message_id_[container_message_id].push_back(get_state_info_message_id);
-    }
-  }
-
-  if (to_send_.empty() && to_ack_message_ids_.empty() && to_get_state_info_message_ids_.empty() &&
-      to_resend_answer_message_ids_.empty() && to_cancel_answer_message_ids_.empty()) {
-    force_send_at_ = 0;
-  }
-}
-
-void SessionConnection::send_before(double tm) {
-  if (force_send_at_ == 0 || force_send_at_ > tm) {
-    force_send_at_ = tm;
-  }
-}
-
-Status SessionConnection::do_flush() {
-  LOG_CHECK(raw_connection_) << was_moved_ << ' ' << state_ << ' ' << static_cast<int32>(mode_) << ' '
-                             << connected_flag_ << ' ' << is_main_ << ' ' << need_destroy_auth_key_ << ' '
-                             << sent_destroy_auth_key_ << ' ' << callback_ << ' ' << (Time::now() - created_at_) << ' '
-                             << (Time::now() - last_read_at_);
-  CHECK(state_ != Closed);
-  if (state_ == Init) {
-    TRY_STATUS(init());
-  }
-  if (!auth_data_->has_auth_key(Time::now_cached())) {
-    return Status::Error("No auth key");
-  }
-
-  last_read_size_ = 0;
-  last_write_size_ = 0;
-  auto start_time = Time::now();
-  auto result = raw_connection_->flush(auth_data_->get_auth_key(), *this);
-  auto elapsed_time = Time::now() - start_time;
-  if (elapsed_time >= 0.1) {
-    LOG(WARNING) << "RawConnection::flush took " << elapsed_time << " seconds, written " << last_write_size_
-                 << " bytes, read " << last_read_size_ << " bytes and returned " << result;
-  }
-  if (result.is_error()) {
-    return result;
-  }
-
-  if (last_pong_at_ + ping_disconnect_delay() < Time::now_cached()) {
-    auto stats_callback = raw_connection_->stats_callback();
-    if (stats_callback != nullptr) {
-      stats_callback->on_error();
-    }
-    return Status::Error(PSLICE() << "Ping timeout of " << ping_disconnect_delay()
-                                  << " seconds expired; last pong was received " << (Time::now() - real_last_pong_at_)
-                                  << " seconds ago");
-  }
-
-  if (last_read_at_ + read_disconnect_delay() < Time::now_cached()) {
-    auto stats_callback = raw_connection_->stats_callback();
-    if (stats_callback != nullptr) {
-      stats_callback->on_error();
-    }
-    return Status::Error(PSLICE() << "Read timeout of " << read_disconnect_delay() << " seconds expired; last read was "
-                                  << (Time::now() - real_last_read_at_) << " seconds ago");
-  }
-
-  return Status::OK();
-}
-
-double SessionConnection::flush(SessionConnection::Callback *callback) {
-  callback_ = callback;
-  auto status = do_flush();
-  // check error
-  if (status.is_error()) {
-    do_close(std::move(status));
-    LOG(DEBUG) << "Close session because of an error";
-    return 0;
-  }
-
-  double wakeup_at = 0;
-  // three independent timeouts
-  // 1. close connection after ping_disconnect_delay() after last pong
-  // 2. close connection after read_disconnect_delay() after last read
-  // 3. the one returned by must_flush_packet
-  relax_timeout_at(&wakeup_at, last_pong_at_ + ping_disconnect_delay() + 0.002);
-  relax_timeout_at(&wakeup_at, last_read_at_ + read_disconnect_delay() + 0.002);
-  relax_timeout_at(&wakeup_at, flush_packet_at_);
-
-  auto now = Time::now();
-  LOG(DEBUG) << "Last pong was in " << (now - last_pong_at_) << '/' << (now - real_last_pong_at_)
-             << ", last read was in " << (now - last_read_at_) << '/' << (now - real_last_read_at_)
-             << ", RTT = " << rtt() << ", ping timeout = " << ping_disconnect_delay()
-             << ", read timeout = " << read_disconnect_delay() << ", flush packet in " << (flush_packet_at_ - now)
-             << ", wakeup in " << (wakeup_at - now);
-
-  return wakeup_at;
-}
-
-void SessionConnection::force_close(SessionConnection::Callback *callback) {
-  CHECK(state_ != Closed);
-  callback_ = callback;
-  do_close(Status::OK());
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/SessionConnection.h b/third-party/td/td/td/mtproto/SessionConnection.h
deleted file mode 100644
index 41240235db..0000000000
--- a/third-party/td/td/td/mtproto/SessionConnection.h
+++ /dev/null
@@ -1,288 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/MessageId.h"
-#include "td/mtproto/MtprotoQuery.h"
-#include "td/mtproto/PacketInfo.h"
-#include "td/mtproto/RawConnection.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/Named.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_parsers.h"
-
-#include <utility>
-
-namespace td {
-
-extern int VERBOSITY_NAME(mtproto);
-
-namespace mtproto_api {
-class new_session_created;
-class bad_msg_notification;
-class bad_server_salt;
-class msgs_ack;
-class gzip_packed;
-class pong;
-class future_salts;
-class msgs_state_info;
-class msgs_all_info;
-class msg_detailed_info;
-class msg_new_detailed_info;
-class DestroyAuthKeyRes;
-class destroy_auth_key_ok;
-class destroy_auth_key_fail;
-class destroy_auth_key_none;
-}  // namespace mtproto_api
-
-namespace mtproto {
-
-class AuthData;
-
-class SessionConnection final
-    : public Named
-    , private RawConnection::Callback {
- public:
-  enum class Mode : int32 { Tcp, Http, HttpLongPoll };
-  SessionConnection(Mode mode, unique_ptr<RawConnection> raw_connection, AuthData *auth_data);
-  SessionConnection(const SessionConnection &) = delete;
-  SessionConnection &operator=(const SessionConnection &) = delete;
-  SessionConnection(SessionConnection &&) = delete;
-  SessionConnection &operator=(SessionConnection &&) = delete;
-  ~SessionConnection() = default;
-
-  PollableFdInfo &get_poll_info();
-  unique_ptr<RawConnection> move_as_raw_connection();
-
-  // Interface
-  MessageId send_query(BufferSlice buffer, bool gzip_flag, MessageId message_id,
-                       vector<MessageId> invoke_after_message_ids, bool use_quick_ack);
-
-  std::pair<MessageId, BufferSlice> encrypted_bind(int64 perm_key, int64 nonce, int32 expires_at);
-
-  void get_state_info(MessageId message_id);
-
-  void resend_answer(MessageId message_id);
-
-  void cancel_answer(MessageId message_id);
-
-  void destroy_key();
-
-  void set_online(bool online_flag, bool is_main);
-
-  void force_ack();
-
-  Slice get_debug_str() const {
-    return raw_connection_ == nullptr ? Slice() : raw_connection_->extra().debug_str;
-  }
-
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-
-    virtual void on_connected() = 0;
-    virtual void on_closed(Status status) = 0;
-
-    virtual void on_server_salt_updated() = 0;
-    virtual void on_server_time_difference_updated(bool force) = 0;
-
-    virtual void on_new_session_created(uint64 unique_id, MessageId first_message_id) = 0;
-    virtual void on_session_failed(Status status) = 0;
-
-    virtual void on_container_sent(MessageId container_message_id, vector<MessageId> message_ids) = 0;
-    virtual Status on_pong(double ping_time, double pong_time, double current_time) = 0;
-
-    virtual Status on_update(BufferSlice packet) = 0;
-
-    virtual void on_message_ack(MessageId message_id) = 0;
-    virtual Status on_message_result_ok(MessageId message_id, BufferSlice packet, size_t original_size) = 0;
-    virtual void on_message_result_error(MessageId message_id, int code, string message) = 0;
-    virtual void on_message_failed(MessageId message_id, Status status) = 0;
-    virtual void on_message_info(MessageId message_id, int32 state, MessageId answer_message_id, int32 answer_size,
-                                 int32 source) = 0;
-
-    virtual Status on_destroy_auth_key() = 0;
-  };
-
-  double flush(SessionConnection::Callback *callback);
-
-  // NB: Do not call force_close after on_closed callback
-  void force_close(SessionConnection::Callback *callback);
-
- private:
-  static constexpr int ACK_DELAY = 30;                  // 30s
-  static constexpr double QUERY_DELAY = 0.001;          // 0.001s
-  static constexpr double RESEND_ANSWER_DELAY = 0.001;  // 0.001s
-
-  struct MsgInfo {
-    MessageId message_id;
-    int32 seq_no;
-    size_t size;
-  };
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MsgInfo &info);
-
-  bool online_flag_ = false;
-  bool is_main_ = false;
-  bool was_moved_ = false;
-
-  double rtt() const {
-    return max(2.0, raw_connection_->extra().rtt * 1.5 + 1);
-  }
-
-  double read_disconnect_delay() const {
-    return online_flag_ ? rtt() * 3.5 : 135 + random_delay_;
-  }
-
-  double ping_disconnect_delay() const {
-    return online_flag_ && is_main_ ? rtt() * 2.5 : 135 + random_delay_;
-  }
-
-  double ping_may_delay() const {
-    return online_flag_ ? rtt() * 0.5 : 30 + random_delay_;
-  }
-
-  double ping_must_delay() const {
-    return online_flag_ ? rtt() : 60 + random_delay_;
-  }
-
-  double http_max_wait() const {
-    return 25.0;  // 25s. Longer could be closed by proxy
-  }
-  static constexpr int HTTP_MAX_AFTER = 10;  // 0.01s
-  static constexpr int HTTP_MAX_DELAY = 30;  // 0.03s
-
-  vector<MtprotoQuery> to_send_;
-  vector<MessageId> to_ack_message_ids_;
-  double force_send_at_ = 0;
-
-  struct ServiceQuery {
-    enum Type { GetStateInfo, ResendAnswer } type_;
-    MessageId container_message_id_;
-    vector<int64> msg_ids_;
-  };
-  vector<MessageId> to_resend_answer_message_ids_;
-  vector<MessageId> to_cancel_answer_message_ids_;
-  vector<MessageId> to_get_state_info_message_ids_;
-  FlatHashMap<MessageId, ServiceQuery, MessageIdHash> service_queries_;
-
-  // nobody cleans up this map. But it should be really small.
-  FlatHashMap<MessageId, vector<MessageId>, MessageIdHash> container_to_service_message_id_;
-
-  double random_delay_ = 0;
-  double last_read_at_ = 0;
-  double last_ping_at_ = 0;
-  double last_pong_at_ = 0;
-  double real_last_read_at_ = 0;
-  double real_last_pong_at_ = 0;
-  MessageId last_ping_message_id_;
-  MessageId last_ping_container_message_id_;
-
-  uint64 last_read_size_ = 0;
-  uint64 last_write_size_ = 0;
-
-  bool need_destroy_auth_key_ = false;
-  bool sent_destroy_auth_key_ = false;
-  double destroy_auth_key_send_time_ = 0.0;
-
-  double flush_packet_at_ = 0;
-
-  double last_get_future_salt_at_ = 0;
-  enum { Init, Run, Fail, Closed } state_;
-  Mode mode_;
-  bool connected_flag_ = false;
-
-  MessageId container_message_id_;
-  MessageId main_message_id_;
-  double created_at_ = 0;
-
-  unique_ptr<RawConnection> raw_connection_;
-  AuthData *const auth_data_;
-  SessionConnection::Callback *callback_ = nullptr;
-  BufferSlice *current_buffer_slice_ = nullptr;
-
-  BufferSlice as_buffer_slice(Slice packet);
-  auto set_buffer_slice(BufferSlice *buffer_slice) TD_WARN_UNUSED_RESULT {
-    auto old_buffer_slice = current_buffer_slice_;
-    current_buffer_slice_ = buffer_slice;
-    return ScopeExit() + [&to = current_buffer_slice_, from = old_buffer_slice] {
-      to = from;
-    };
-  }
-
-  void reset_server_time_difference(MessageId message_id);
-
-  static Status parse_message(TlParser &parser, MsgInfo *info, Slice *packet,
-                              bool crypto_flag = true) TD_WARN_UNUSED_RESULT;
-  Status parse_packet(TlParser &parser) TD_WARN_UNUSED_RESULT;
-  Status on_packet_container(const MsgInfo &info, Slice packet) TD_WARN_UNUSED_RESULT;
-  Status on_packet_rpc_result(const MsgInfo &info, Slice packet) TD_WARN_UNUSED_RESULT;
-
-  template <class T>
-  Status on_packet(const MsgInfo &info, const T &packet) TD_WARN_UNUSED_RESULT;
-
-  Status on_packet(const MsgInfo &info,
-                   const mtproto_api::new_session_created &new_session_created) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info,
-                   const mtproto_api::bad_msg_notification &bad_msg_notification) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::bad_server_salt &bad_server_salt) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::msgs_ack &msgs_ack) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::gzip_packed &gzip_packed) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::pong &pong) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::future_salts &salts) TD_WARN_UNUSED_RESULT;
-
-  Status on_msgs_state_info(const vector<int64> &msg_ids, Slice info) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::msgs_state_info &msgs_state_info) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::msgs_all_info &msgs_all_info) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::msg_detailed_info &msg_detailed_info) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info,
-                   const mtproto_api::msg_new_detailed_info &msg_new_detailed_info) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info, const mtproto_api::destroy_auth_key_ok &destroy_auth_key) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info,
-                   const mtproto_api::destroy_auth_key_none &destroy_auth_key) TD_WARN_UNUSED_RESULT;
-  Status on_packet(const MsgInfo &info,
-                   const mtproto_api::destroy_auth_key_fail &destroy_auth_key) TD_WARN_UNUSED_RESULT;
-  Status on_destroy_auth_key(const mtproto_api::DestroyAuthKeyRes &destroy_auth_key);
-
-  Status on_slice_packet(const MsgInfo &info, Slice packet) TD_WARN_UNUSED_RESULT;
-  Status on_main_packet(const PacketInfo &packet_info, Slice packet) TD_WARN_UNUSED_RESULT;
-  void on_message_failed(MessageId message_id, Status status);
-  void on_message_failed_inner(MessageId message_id);
-
-  void do_close(Status status);
-
-  void send_ack(MessageId message_id);
-  void send_crypto(const Storer &storer, uint64 quick_ack_token);
-  void send_before(double tm);
-  bool may_ping() const;
-  bool must_ping() const;
-  bool must_flush_packet();
-  void flush_packet();
-
-  Status init() TD_WARN_UNUSED_RESULT;
-  Status do_flush() TD_WARN_UNUSED_RESULT;
-
-  Status before_write() final TD_WARN_UNUSED_RESULT;
-  Status on_raw_packet(const PacketInfo &packet_info, BufferSlice packet) final;
-  Status on_quick_ack(uint64 quick_ack_token) final;
-  void on_read(size_t size) final;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/TcpTransport.cpp b/third-party/td/td/td/mtproto/TcpTransport.cpp
deleted file mode 100644
index 72dc280be0..0000000000
--- a/third-party/td/td/td/mtproto/TcpTransport.cpp
+++ /dev/null
@@ -1,221 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/TcpTransport.h"
-
-#include "td/utils/as.h"
-#include "td/utils/common.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-
-#include <algorithm>
-
-namespace td {
-namespace mtproto {
-namespace tcp {
-
-size_t IntermediateTransport::read_from_stream(ChainBufferReader *stream, BufferSlice *message, uint32 *quick_ack) {
-  CHECK(message);
-  size_t stream_size = stream->size();
-  size_t header_size = 4;
-  if (stream->size() < header_size) {
-    return header_size;
-  }
-  uint32 data_size;
-  auto it = stream->clone();
-  it.advance(header_size, MutableSlice(reinterpret_cast<uint8 *>(&data_size), sizeof(data_size)));
-  if (data_size & (1u << 31)) {
-    if (quick_ack) {
-      *quick_ack = data_size;
-    }
-    stream->advance(header_size);
-    return 0;
-  }
-
-  size_t total_size = data_size + header_size;
-  if (stream_size < total_size) {
-    // optimization
-    // stream->make_solid(total_size);
-    return total_size;
-  }
-
-  stream->advance(header_size);
-  *message = stream->cut_head(data_size).move_as_buffer_slice();
-  return 0;
-}
-
-void IntermediateTransport::write_prepare_inplace(BufferWriter *message, bool quick_ack) {
-  size_t size = message->size();
-  CHECK(size % 4 == 0);
-  CHECK(size < (1 << 24));
-  if (quick_ack) {
-    size |= static_cast<size_t>(1) << 31;
-  }
-
-  size_t prepend_size = 4;
-  MutableSlice prepend = message->prepare_prepend();
-  CHECK(prepend.size() >= prepend_size);
-  message->confirm_prepend(prepend_size);
-
-  size_t append_size = 0;
-  if (with_padding()) {
-    append_size = Random::secure_uint32() % 16;
-    MutableSlice append = message->prepare_append().substr(0, append_size);
-    CHECK(append.size() == append_size);
-    Random::secure_bytes(append);
-    message->confirm_append(append.size());
-  }
-
-  as<uint32>(message->as_mutable_slice().begin()) = static_cast<uint32>(size + append_size);
-}
-
-void IntermediateTransport::init_output_stream(ChainBufferWriter *stream) {
-  const uint32 magic = with_padding() ? 0xdddddddd : 0xeeeeeeee;
-  stream->append(Slice(reinterpret_cast<const char *>(&magic), 4));
-}
-
-void ObfuscatedTransport::init(ChainBufferReader *input, ChainBufferWriter *output) {
-  input_ = input;
-  output_ = output;
-
-  const size_t header_size = 64;
-  string header(header_size, '\0');
-  MutableSlice header_slice = header;
-  int32 try_cnt = 0;
-  while (true) {
-    try_cnt++;
-    CHECK(try_cnt < 10);
-    Random::secure_bytes(header_slice.ubegin(), header.size());
-    if (secret_.emulate_tls()) {
-      break;
-    }
-    if (as<uint8>(header.data()) == 0xef) {
-      continue;
-    }
-    uint32 first_int = as<uint32>(header.data());
-    if (first_int == 0x44414548 || first_int == 0x54534f50 || first_int == 0x20544547 || first_int == 0x4954504f ||
-        first_int == 0xdddddddd || first_int == 0xeeeeeeee || first_int == 0x02010316) {
-      continue;
-    }
-    uint32 second_int = as<uint32>(header.data() + sizeof(uint32));
-    if (second_int == 0) {
-      continue;
-    }
-    break;
-  }
-  as<uint32>(header_slice.begin() + 56) = impl_.with_padding() ? 0xdddddddd : 0xeeeeeeee;
-  if (dc_id_ != 0) {
-    as<int16>(header_slice.begin() + 60) = dc_id_;
-  }
-
-  string rheader = header;
-  std::reverse(rheader.begin(), rheader.end());
-  UInt256 key = as<UInt256>(rheader.data() + 8);
-  Slice proxy_secret = secret_.get_proxy_secret();
-  auto fix_key = [&](UInt256 &key) {
-    if (!proxy_secret.empty()) {
-      Sha256State state;
-      state.init();
-      state.feed(as_slice(key));
-      state.feed(proxy_secret);
-      state.extract(as_mutable_slice(key));
-    }
-  };
-  fix_key(key);
-  aes_ctr_byte_flow_.init(key, as<UInt128>(rheader.data() + 8 + 32));
-  if (secret_.emulate_tls()) {
-    tls_reader_byte_flow_.set_input(input_);
-    tls_reader_byte_flow_ >> aes_ctr_byte_flow_;
-  } else {
-    aes_ctr_byte_flow_.set_input(input_);
-  }
-  aes_ctr_byte_flow_ >> byte_flow_sink_;
-
-  output_key_ = as<UInt256>(header.data() + 8);
-  fix_key(output_key_);
-  output_state_.init(as_slice(output_key_), Slice(header.data() + 8 + 32, 16));
-  header_ = header;
-  output_state_.encrypt(header_slice, header_slice);
-  MutableSlice(header_).substr(56).copy_from(header_slice.substr(56));
-}
-
-Result<size_t> ObfuscatedTransport::read_next(BufferSlice *message, uint32 *quick_ack) {
-  if (secret_.emulate_tls()) {
-    tls_reader_byte_flow_.wakeup();
-  } else {
-    aes_ctr_byte_flow_.wakeup();
-  }
-  return impl_.read_from_stream(byte_flow_sink_.get_output(), message, quick_ack);
-}
-
-void ObfuscatedTransport::write(BufferWriter &&message, bool quick_ack) {
-  impl_.write_prepare_inplace(&message, quick_ack);
-  output_state_.encrypt(message.as_slice(), message.as_mutable_slice());
-  if (secret_.emulate_tls()) {
-    do_write_tls(std::move(message));
-  } else {
-    do_write_main(std::move(message));
-  }
-}
-
-void ObfuscatedTransport::do_write_main(BufferWriter &&message) {
-  BufferBuilder builder(std::move(message));
-  if (!header_.empty()) {
-    builder.prepend(header_);
-    header_ = {};
-  }
-  do_write(builder.extract());
-}
-
-void ObfuscatedTransport::do_write_tls(BufferWriter &&message) {
-  CHECK(header_.size() <= MAX_TLS_PACKET_LENGTH);
-  if (message.size() + header_.size() > MAX_TLS_PACKET_LENGTH) {
-    auto buffer_slice = message.as_buffer_slice();
-    auto slice = buffer_slice.as_slice();
-    while (!slice.empty()) {
-      auto buf = buffer_slice.from_slice(slice.substr(0, MAX_TLS_PACKET_LENGTH - header_.size()));
-      slice.remove_prefix(buf.size());
-      BufferBuilder builder;
-      builder.append(std::move(buf));
-      do_write_tls(std::move(builder));
-    }
-    return;
-  }
-
-  BufferBuilder builder(std::move(message));
-  do_write_tls(std::move(builder));
-}
-
-void ObfuscatedTransport::do_write_tls(BufferBuilder &&builder) {
-  if (!header_.empty()) {
-    builder.prepend(header_);
-    header_ = {};
-  }
-
-  size_t size = builder.size();
-  CHECK(size <= MAX_TLS_PACKET_LENGTH);
-
-  char buf[] = "\x17\x03\x03\x00\x00";
-  buf[3] = static_cast<char>((size >> 8) & 0xff);
-  buf[4] = static_cast<char>(size & 0xff);
-  builder.prepend(Slice(buf, 5));
-
-  if (is_first_tls_packet_) {
-    is_first_tls_packet_ = false;
-    Slice first_prefix("\x14\x03\x03\x00\x01\x01");
-    builder.prepend(first_prefix);
-  }
-
-  do_write(builder.extract());
-}
-
-void ObfuscatedTransport::do_write(BufferSlice &&message) {
-  output_->append(std::move(message));
-}
-
-}  // namespace tcp
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/TcpTransport.h b/third-party/td/td/td/mtproto/TcpTransport.h
deleted file mode 100644
index 00efd5cc1b..0000000000
--- a/third-party/td/td/td/mtproto/TcpTransport.h
+++ /dev/null
@@ -1,181 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/IStreamTransport.h"
-#include "td/mtproto/ProxySecret.h"
-#include "td/mtproto/TlsReaderByteFlow.h"
-#include "td/mtproto/TransportType.h"
-
-#include "td/utils/AesCtrByteFlow.h"
-#include "td/utils/buffer.h"
-#include "td/utils/ByteFlow.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-namespace mtproto {
-namespace tcp {
-
-class IntermediateTransport {
- public:
-  explicit IntermediateTransport(bool with_padding) : with_padding_(with_padding) {
-  }
-
-  // Writes a packet into message.
-  // Returns 0 if everything is ok, and [expected_size] otherwise.
-  // There is no sense to call this function when [stream->size > expected_size]
-  //
-  // (TCP is a stream-oriented protocol, so the input message is a stream, not a slice)
-  size_t read_from_stream(ChainBufferReader *stream, BufferSlice *message, uint32 *quick_ack);
-
-  // Writes header inplace.
-  void write_prepare_inplace(BufferWriter *message, bool quick_ack);
-
-  // Writes first several bytes into output stream.
-  void init_output_stream(ChainBufferWriter *stream);
-
-  bool with_padding() const {
-    return with_padding_;
-  }
-
- private:
-  bool with_padding_;
-};
-
-class OldTransport final : public IStreamTransport {
- public:
-  OldTransport() = default;
-  Result<size_t> read_next(BufferSlice *message, uint32 *quick_ack) final TD_WARN_UNUSED_RESULT {
-    return impl_.read_from_stream(input_, message, quick_ack);
-  }
-  bool support_quick_ack() const final {
-    return true;
-  }
-  void write(BufferWriter &&message, bool quick_ack) final {
-    impl_.write_prepare_inplace(&message, quick_ack);
-    output_->append(message.as_buffer_slice());
-  }
-  void init(ChainBufferReader *input, ChainBufferWriter *output) final {
-    input_ = input;
-    output_ = output;
-    impl_.init_output_stream(output_);
-  }
-  bool can_read() const final {
-    return true;
-  }
-  bool can_write() const final {
-    return true;
-  }
-
-  size_t max_prepend_size() const final {
-    return 4;
-  }
-
-  size_t max_append_size() const final {
-    return 15;
-  }
-
-  TransportType get_type() const final {
-    return TransportType{TransportType::Tcp, 0, ProxySecret()};
-  }
-
-  bool use_random_padding() const final {
-    return false;
-  }
-
- private:
-  IntermediateTransport impl_{false};
-  ChainBufferReader *input_{nullptr};
-  ChainBufferWriter *output_{nullptr};
-};
-
-class ObfuscatedTransport final : public IStreamTransport {
- public:
-  ObfuscatedTransport(int16 dc_id, ProxySecret secret)
-      : dc_id_(dc_id), secret_(std::move(secret)), impl_(secret_.use_random_padding()) {
-  }
-
-  Result<size_t> read_next(BufferSlice *message, uint32 *quick_ack) final TD_WARN_UNUSED_RESULT;
-
-  bool support_quick_ack() const final {
-    return true;
-  }
-
-  void write(BufferWriter &&message, bool quick_ack) final;
-
-  void init(ChainBufferReader *input, ChainBufferWriter *output) final;
-
-  bool can_read() const final {
-    return true;
-  }
-
-  bool can_write() const final {
-    return true;
-  }
-
-  size_t max_prepend_size() const final {
-    size_t res = 4;
-    if (secret_.emulate_tls()) {
-      res += 5;
-      if (is_first_tls_packet_) {
-        res += 6;
-      }
-    }
-    res += header_.size();
-    if (res & 3) {
-      res += 4 - (res & 3);
-    }
-    return res;
-  }
-
-  size_t max_append_size() const final {
-    return 15;
-  }
-
-  TransportType get_type() const final {
-    return TransportType{TransportType::ObfuscatedTcp, dc_id_, secret_};
-  }
-
-  bool use_random_padding() const final {
-    return secret_.use_random_padding();
-  }
-
- private:
-  int16 dc_id_;
-  bool is_first_tls_packet_{true};
-  ProxySecret secret_;
-  std::string header_;
-  IntermediateTransport impl_;
-  TlsReaderByteFlow tls_reader_byte_flow_;
-  AesCtrByteFlow aes_ctr_byte_flow_;
-  ByteFlowSink byte_flow_sink_;
-  ChainBufferReader *input_ = nullptr;
-
-  static constexpr int32 MAX_TLS_PACKET_LENGTH = 2878;
-
-  // TODO: use ByteFlow?
-  // One problem is that BufferedFd owns output_buffer_
-  // The other problem is that first 56 bytes must be sent unencrypted.
-  UInt256 output_key_;
-  AesCtrState output_state_;
-  ChainBufferWriter *output_ = nullptr;
-
-  void do_write_tls(BufferWriter &&message);
-  void do_write_tls(BufferBuilder &&builder);
-  void do_write_main(BufferWriter &&message);
-  void do_write(BufferSlice &&message);
-};
-
-using Transport = ObfuscatedTransport;
-
-}  // namespace tcp
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/TlsInit.cpp b/third-party/td/td/td/mtproto/TlsInit.cpp
deleted file mode 100644
index 38fdf07202..0000000000
--- a/third-party/td/td/td/mtproto/TlsInit.cpp
+++ /dev/null
@@ -1,558 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/TlsInit.h"
-
-#include "td/mtproto/ProxySecret.h"
-
-#include "td/utils/as.h"
-#include "td/utils/BigNum.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Span.h"
-#include "td/utils/Time.h"
-
-#include <algorithm>
-#include <cstring>
-
-namespace td {
-namespace mtproto {
-
-void Grease::init(MutableSlice res) {
-  Random::secure_bytes(res);
-  for (auto &c : res) {
-    c = static_cast<char>((c & 0xF0) + 0x0A);
-  }
-  for (size_t i = 1; i < res.size(); i += 2) {
-    if (res[i] == res[i - 1]) {
-      res[i] ^= 0x10;
-    }
-  }
-}
-
-class TlsHello {
- public:
-  struct Op {
-    enum class Type { String, Random, Zero, Domain, Grease, Key, BeginScope, EndScope, Permutation };
-    Type type;
-    int length;
-    int seed;
-    string data;
-    vector<vector<Op>> parts;
-
-    static Op str(Slice str) {
-      Op res;
-      res.type = Type::String;
-      res.data = str.str();
-      return res;
-    }
-    static Op random(int length) {
-      Op res;
-      res.type = Type::Random;
-      res.length = length;
-      return res;
-    }
-    static Op zero(int length) {
-      Op res;
-      res.type = Type::Zero;
-      res.length = length;
-      return res;
-    }
-    static Op domain() {
-      Op res;
-      res.type = Type::Domain;
-      return res;
-    }
-    static Op grease(int seed) {
-      Op res;
-      res.type = Type::Grease;
-      res.seed = seed;
-      return res;
-    }
-    static Op begin_scope() {
-      Op res;
-      res.type = Type::BeginScope;
-      return res;
-    }
-    static Op end_scope() {
-      Op res;
-      res.type = Type::EndScope;
-      return res;
-    }
-    static Op key() {
-      Op res;
-      res.type = Type::Key;
-      return res;
-    }
-    static Op permutation(vector<vector<Op>> parts) {
-      Op res;
-      res.type = Type::Permutation;
-      res.parts = std::move(parts);
-      return res;
-    }
-  };
-
-  static const TlsHello &get_default() {
-    static TlsHello result = [] {
-      TlsHello res;
-#if TD_DARWIN
-      res.ops_ = {
-          Op::str("\x16\x03\x01\x02\x00\x01\x00\x01\xfc\x03\x03"),
-          Op::zero(32),
-          Op::str("\x20"),
-          Op::random(32),
-          Op::str("\x00\x2a"),
-          Op::grease(0),
-          Op::str("\x13\x01\x13\x02\x13\x03\xc0\x2c\xc0\x2b\xcc\xa9\xc0\x30\xc0\x2f\xcc\xa8\xc0\x0a\xc0\x09\xc0\x14"
-                  "\xc0\x13\x00\x9d\x00\x9c\x00\x35\x00\x2f\xc0\x08\xc0\x12\x00\x0a\x01\x00\x01\x89"),
-          Op::grease(2),
-          Op::str("\x00\x00\x00\x00"),
-          Op::begin_scope(),
-          Op::begin_scope(),
-          Op::str("\x00"),
-          Op::begin_scope(),
-          Op::domain(),
-          Op::end_scope(),
-          Op::end_scope(),
-          Op::end_scope(),
-          Op::str("\x00\x17\x00\x00\xff\x01\x00\x01\x00\x00\x0a\x00\x0c\x00\x0a"),
-          Op::grease(4),
-          Op::str("\x00\x1d\x00\x17\x00\x18\x00\x19\x00\x0b\x00\x02\x01\x00\x00\x10\x00\x0e\x00\x0c\x02\x68\x32\x08"
-                  "\x68\x74\x74\x70\x2f\x31\x2e\x31\x00\x05\x00\x05\x01\x00\x00\x00\x00\x00\x0d\x00\x18\x00\x16\x04"
-                  "\x03\x08\x04\x04\x01\x05\x03\x02\x03\x08\x05\x08\x05\x05\x01\x08\x06\x06\x01\x02\x01\x00\x12\x00"
-                  "\x00\x00\x33\x00\x2b\x00\x29"),
-          Op::grease(4),
-          Op::str("\x00\x01\x00\x00\x1d\x00\x20"),
-          Op::key(),
-          Op::str("\x00\x2d\x00\x02\x01\x01\x00\x2b\x00\x0b\x0a"),
-          Op::grease(6),
-          Op::str("\x03\x04\x03\x03\x03\x02\x03\x01\x00\x1b\x00\x03\x02\x00\x01"),
-          Op::grease(3),
-          Op::str("\x00\x01\x00\x00\x15")};
-#else
-      res.ops_ = {
-          Op::str("\x16\x03\x01\x02\x00\x01\x00\x01\xfc\x03\x03"),
-          Op::zero(32),
-          Op::str("\x20"),
-          Op::random(32),
-          Op::str("\x00\x20"),
-          Op::grease(0),
-          Op::str("\x13\x01\x13\x02\x13\x03\xc0\x2b\xc0\x2f\xc0\x2c\xc0\x30\xcc\xa9\xcc\xa8\xc0\x13\xc0\x14\x00\x9c"
-                  "\x00\x9d\x00\x2f\x00\x35\x01\x00\x01\x93"),
-          Op::grease(2),
-          Op::str("\x00\x00"),
-
-          Op::permutation(
-              {vector<Op>{Op::str("\x00\x00"), Op::begin_scope(), Op::begin_scope(), Op::str("\x00"), Op::begin_scope(),
-                          Op::domain(), Op::end_scope(), Op::end_scope(), Op::end_scope()},
-               vector<Op>{Op::str("\x00\x05\x00\x05\x01\x00\x00\x00\x00")},
-               vector<Op>{Op::str("\x00\x0a\x00\x0a\x00\x08"), Op::grease(4), Op::str("\x00\x1d\x00\x17\x00\x18")},
-               vector<Op>{Op::str("\x00\x0b\x00\x02\x01\x00")},
-               vector<Op>{
-                   Op::str("\x00\x0d\x00\x12\x00\x10\x04\x03\x08\x04\x04\x01\x05\x03\x08\x05\x05\x01\x08\x06\x06\x01")},
-               vector<Op>{Op::str("\x00\x10\x00\x0e\x00\x0c\x02\x68\x32\x08\x68\x74\x74\x70\x2f\x31\x2e\x31")},
-               vector<Op>{Op::str("\x00\x12\x00\x00")}, vector<Op>{Op::str("\x00\x17\x00\x00")},
-               vector<Op>{Op::str("\x00\x1b\x00\x03\x02\x00\x02")}, vector<Op>{Op::str("\x00\x23\x00\x00")},
-               vector<Op>{Op::str("\x00\x2b\x00\x07\x06"), Op::grease(6), Op::str("\x03\x04\x03\x03")},
-               vector<Op>{Op::str("\x00\x2d\x00\x02\x01\x01")},
-               vector<Op>{Op::str("\x00\x33\x00\x2b\x00\x29"), Op::grease(4), Op::str("\x00\x01\x00\x00\x1d\x00\x20"),
-                          Op::key()},
-               vector<Op>{Op::str("\x44\x69\x00\x05\x00\x03\x02\x68\x32")},
-               vector<Op>{Op::str("\xff\x01\x00\x01\x00")}}),
-          Op::grease(3),
-          Op::str("\x00\x01\x00\x00\x15")};
-#endif
-      return res;
-    }();
-    return result;
-  }
-
-  Span<Op> get_ops() const {
-    return ops_;
-  }
-
-  size_t get_grease_size() const {
-    return grease_size_;
-  }
-
- private:
-  std::vector<Op> ops_;
-  size_t grease_size_ = 7;
-};
-
-class TlsHelloContext {
- public:
-  TlsHelloContext(size_t grease_size, string domain) : grease_(grease_size, '\0'), domain_(std::move(domain)) {
-    Grease::init(grease_);
-  }
-
-  char get_grease(size_t i) const {
-    CHECK(i < grease_.size());
-    return grease_[i];
-  }
-  size_t get_grease_size() const {
-    return grease_.size();
-  }
-  Slice get_domain() const {
-    return Slice(domain_).substr(0, ProxySecret::MAX_DOMAIN_LENGTH);
-  }
-
- private:
-  string grease_;
-  string domain_;
-};
-
-class TlsHelloCalcLength {
- public:
-  void do_op(const TlsHello::Op &op, const TlsHelloContext *context) {
-    if (status_.is_error()) {
-      return;
-    }
-    using Type = TlsHello::Op::Type;
-    switch (op.type) {
-      case Type::String:
-        size_ += op.data.size();
-        break;
-      case Type::Random:
-        if (op.length <= 0 || op.length > 1024) {
-          return on_error(Status::Error("Invalid random length"));
-        }
-        size_ += op.length;
-        break;
-      case Type::Zero:
-        if (op.length <= 0 || op.length > 1024) {
-          return on_error(Status::Error("Invalid zero length"));
-        }
-        size_ += op.length;
-        break;
-      case Type::Domain:
-        CHECK(context);
-        size_ += context->get_domain().size();
-        break;
-      case Type::Grease:
-        CHECK(context);
-        if (op.seed < 0 || static_cast<size_t>(op.seed) >= context->get_grease_size()) {
-          return on_error(Status::Error("Invalid grease seed"));
-        }
-        size_ += 2;
-        break;
-      case Type::Key:
-        size_ += 32;
-        break;
-      case Type::BeginScope:
-        size_ += 2;
-        scope_offset_.push_back(size_);
-        break;
-      case Type::EndScope: {
-        if (scope_offset_.empty()) {
-          return on_error(Status::Error("Unbalanced scopes"));
-        }
-        auto begin_offset = scope_offset_.back();
-        scope_offset_.pop_back();
-        auto end_offset = size_;
-        auto size = end_offset - begin_offset;
-        if (size >= (1 << 14)) {
-          return on_error(Status::Error("Scope is too big"));
-        }
-        break;
-      }
-      case Type::Permutation: {
-        for (const auto &part : op.parts) {
-          for (auto &nested_op : part) {
-            do_op(nested_op, context);
-          }
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  size_t get_length() const {
-    return size_;
-  }
-
-  Result<size_t> finish() {
-    if (status_.is_error()) {
-      return std::move(status_);
-    }
-    if (size_ > 514) {
-      return Status::Error("Too long for zero padding");
-    }
-    if (size_ < 11 + 32) {
-      return Status::Error("Too small for hash");
-    }
-    int zero_pad = 515 - static_cast<int>(size_);
-    using Op = TlsHello::Op;
-    do_op(Op::begin_scope(), nullptr);
-    do_op(Op::zero(zero_pad), nullptr);
-    do_op(Op::end_scope(), nullptr);
-    if (!scope_offset_.empty()) {
-      return Status::Error("Unbalanced scopes");
-    }
-    return size_;
-  }
-
- private:
-  size_t size_{0};
-  Status status_;
-  std::vector<size_t> scope_offset_;
-
-  void on_error(Status error) {
-    if (status_.is_ok()) {
-      status_ = std::move(error);
-    }
-  }
-};
-
-class TlsHelloStore {
- public:
-  explicit TlsHelloStore(MutableSlice dest) : data_(dest), dest_(dest) {
-  }
-  void do_op(const TlsHello::Op &op, const TlsHelloContext *context) {
-    using Type = TlsHello::Op::Type;
-    switch (op.type) {
-      case Type::String:
-        dest_.copy_from(op.data);
-        dest_.remove_prefix(op.data.size());
-        break;
-      case Type::Random:
-        Random::secure_bytes(dest_.substr(0, op.length));
-        dest_.remove_prefix(op.length);
-        break;
-      case Type::Zero:
-        std::memset(dest_.begin(), 0, op.length);
-        dest_.remove_prefix(op.length);
-        break;
-      case Type::Domain: {
-        CHECK(context);
-        auto domain = context->get_domain();
-        dest_.copy_from(domain);
-        dest_.remove_prefix(domain.size());
-        break;
-      }
-      case Type::Grease: {
-        CHECK(context);
-        auto grease = context->get_grease(op.seed);
-        dest_[0] = grease;
-        dest_[1] = grease;
-        dest_.remove_prefix(2);
-        break;
-      }
-      case Type::Key: {
-        BigNum mod = BigNum::from_hex("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed").move_as_ok();
-        BigNumContext big_num_context;
-        auto key = dest_.substr(0, 32);
-        while (true) {
-          Random::secure_bytes(key);
-          key[31] = static_cast<char>(key[31] & 127);
-
-          BigNum x = BigNum::from_binary(key);
-          BigNum y = get_y2(x, mod, big_num_context);
-          if (is_quadratic_residue(y)) {
-            for (int i = 0; i < 3; i++) {
-              x = get_double_x(x, mod, big_num_context);
-            }
-            key.copy_from(x.to_le_binary(32));
-            break;
-          }
-        }
-        dest_.remove_prefix(32);
-        break;
-      }
-      case Type::BeginScope:
-        scope_offset_.push_back(get_offset());
-        dest_.remove_prefix(2);
-        break;
-      case Type::EndScope: {
-        CHECK(!scope_offset_.empty());
-        auto begin_offset = scope_offset_.back();
-        scope_offset_.pop_back();
-        auto end_offset = get_offset();
-        size_t size = end_offset - begin_offset - 2;
-        CHECK(size < (1 << 14));
-        data_[begin_offset] = static_cast<char>((size >> 8) & 0xff);
-        data_[begin_offset + 1] = static_cast<char>(size & 0xff);
-        break;
-      }
-      case Type::Permutation: {
-        vector<string> parts;
-        for (const auto &part : op.parts) {
-          TlsHelloCalcLength calc_length;
-          for (auto &nested_op : part) {
-            calc_length.do_op(nested_op, context);
-          }
-          auto length = calc_length.get_length();
-          string data(length, '\0');
-          TlsHelloStore storer(data);
-          for (auto &nested_op : part) {
-            storer.do_op(nested_op, context);
-          }
-          CHECK(storer.get_offset() == data.size());
-          parts.push_back(std::move(data));
-        }
-        Random::shuffle(parts);
-        for (auto &part : parts) {
-          dest_.copy_from(part);
-          dest_.remove_prefix(part.size());
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void finish(Slice secret, int32 unix_time) {
-    int zero_pad = 515 - static_cast<int>(get_offset());
-    using Op = TlsHello::Op;
-    do_op(Op::begin_scope(), nullptr);
-    do_op(Op::zero(zero_pad), nullptr);
-    do_op(Op::end_scope(), nullptr);
-
-    auto hash_dest = data_.substr(11, 32);
-    hmac_sha256(secret, data_, hash_dest);
-    int32 old = as<int32>(hash_dest.substr(28).data());
-    as<int32>(hash_dest.substr(28).data()) = old ^ unix_time;
-    CHECK(dest_.empty());
-  }
-
- private:
-  MutableSlice data_;
-  MutableSlice dest_;
-  vector<size_t> scope_offset_;
-
-  static BigNum get_y2(BigNum &x, const BigNum &mod, BigNumContext &big_num_context) {
-    // returns y = x^3 + 486662 * x^2 + x
-    BigNum y = x.clone();
-    BigNum coef = BigNum::from_decimal("486662").move_as_ok();
-    BigNum::mod_add(y, y, coef, mod, big_num_context);
-    BigNum::mod_mul(y, y, x, mod, big_num_context);
-    BigNum one = BigNum::from_decimal("1").move_as_ok();
-    BigNum::mod_add(y, y, one, mod, big_num_context);
-    BigNum::mod_mul(y, y, x, mod, big_num_context);
-    return y;
-  }
-
-  static BigNum get_double_x(BigNum &x, const BigNum &mod, BigNumContext &big_num_context) {
-    // returns x_2 = (x^2 - 1)^2/(4*y^2)
-    BigNum denominator = get_y2(x, mod, big_num_context);
-    BigNum coef = BigNum::from_decimal("4").move_as_ok();
-    BigNum::mod_mul(denominator, denominator, coef, mod, big_num_context);
-
-    BigNum numerator;
-    BigNum::mod_mul(numerator, x, x, mod, big_num_context);
-    BigNum one = BigNum::from_decimal("1").move_as_ok();
-    BigNum::mod_sub(numerator, numerator, one, mod, big_num_context);
-    BigNum::mod_mul(numerator, numerator, numerator, mod, big_num_context);
-
-    BigNum::mod_inverse(denominator, denominator, mod, big_num_context);
-    BigNum::mod_mul(numerator, numerator, denominator, mod, big_num_context);
-    return numerator;
-  }
-
-  static bool is_quadratic_residue(const BigNum &a) {
-    // 2^255 - 19
-    BigNum mod = BigNum::from_hex("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed").move_as_ok();
-    // (mod - 1) / 2 = 2^254 - 10
-    BigNum pow = BigNum::from_hex("3ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff6").move_as_ok();
-
-    BigNumContext context;
-    BigNum r;
-    BigNum::mod_exp(r, a, pow, mod, context);
-
-    return r.to_decimal() == "1";
-  }
-
-  size_t get_offset() const {
-    return data_.size() - dest_.size();
-  }
-};
-
-class TlsObfusaction {
- public:
-  static string generate_header(string domain, Slice secret, int32 unix_time) {
-    CHECK(!domain.empty());
-    CHECK(secret.size() == 16);
-
-    auto &hello = TlsHello::get_default();
-    TlsHelloContext context(hello.get_grease_size(), std::move(domain));
-    TlsHelloCalcLength calc_length;
-    for (auto &op : hello.get_ops()) {
-      calc_length.do_op(op, &context);
-    }
-    auto length = calc_length.finish().move_as_ok();
-    string data(length, '\0');
-    TlsHelloStore storer(data);
-    for (auto &op : hello.get_ops()) {
-      storer.do_op(op, &context);
-    }
-    storer.finish(secret, unix_time);
-    return data;
-  }
-};
-
-void TlsInit::send_hello() {
-  auto hello =
-      TlsObfusaction::generate_header(username_, password_, static_cast<int32>(Time::now() + server_time_difference_));
-  hello_rand_ = hello.substr(11, 32);
-  fd_.output_buffer().append(hello);
-  state_ = State::WaitHelloResponse;
-}
-
-Status TlsInit::wait_hello_response() {
-  auto it = fd_.input_buffer().clone();
-  for (auto prefix : {Slice("\x16\x03\x03"), Slice("\x14\x03\x03\x00\x01\x01\x17\x03\x03")}) {
-    if (it.size() < prefix.size() + 2) {
-      return Status::OK();
-    }
-
-    string response_prefix(prefix.size(), '\0');
-    it.advance(prefix.size(), response_prefix);
-    if (prefix != response_prefix) {
-      return Status::Error("First part of response to hello is invalid");
-    }
-
-    uint8 tmp[2];
-    it.advance(2, MutableSlice(tmp, 2));
-    size_t skip_size = (tmp[0] << 8) + tmp[1];
-    if (it.size() < skip_size) {
-      return Status::OK();
-    }
-    it.advance(skip_size);
-  }
-
-  auto response = fd_.input_buffer().cut_head(it.begin().clone()).move_as_buffer_slice();
-  auto response_rand_slice = response.as_mutable_slice().substr(11, 32);
-  auto response_rand = response_rand_slice.str();
-  std::fill(response_rand_slice.begin(), response_rand_slice.end(), '\0');
-  string hash_dest(32, '\0');
-  hmac_sha256(password_, PSLICE() << hello_rand_ << response.as_slice(), hash_dest);
-  if (hash_dest != response_rand) {
-    return Status::Error("Response hash mismatch");
-  }
-
-  stop();
-  return Status::OK();
-}
-
-Status TlsInit::loop_impl() {
-  switch (state_) {
-    case State::SendHello:
-      send_hello();
-      break;
-    case State::WaitHelloResponse:
-      TRY_STATUS(wait_hello_response());
-      break;
-  }
-  return Status::OK();
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/TlsInit.h b/third-party/td/td/td/mtproto/TlsInit.h
deleted file mode 100644
index 519ee11acd..0000000000
--- a/third-party/td/td/td/mtproto/TlsInit.h
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/TransparentProxy.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-class Grease {
- public:
-  static void init(MutableSlice res);
-};
-
-class TlsInit final : public TransparentProxy {
- public:
-  TlsInit(SocketFd socket_fd, string domain, string secret, unique_ptr<Callback> callback, ActorShared<> parent,
-          double server_time_difference)
-      : TransparentProxy(std::move(socket_fd), IPAddress(), std::move(domain), std::move(secret), std::move(callback),
-                         std::move(parent))
-      , server_time_difference_(server_time_difference) {
-  }
-
- private:
-  double server_time_difference_{0};
-  enum class State {
-    SendHello,
-    WaitHelloResponse,
-  } state_ = State::SendHello;
-  std::string hello_rand_;
-
-  void send_hello();
-  Status wait_hello_response();
-
-  Status loop_impl() final;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/TlsReaderByteFlow.cpp b/third-party/td/td/td/mtproto/TlsReaderByteFlow.cpp
deleted file mode 100644
index dbf45d630d..0000000000
--- a/third-party/td/td/td/mtproto/TlsReaderByteFlow.cpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/TlsReaderByteFlow.h"
-
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace mtproto {
-
-bool TlsReaderByteFlow::loop() {
-  if (input_->size() < 5) {
-    set_need_size(5);
-    return false;
-  }
-
-  auto it = input_->clone();
-  uint8 buf[5];
-  it.advance(5, MutableSlice(buf, 5));
-  if (Slice(buf, 3) != Slice("\x17\x03\x03")) {
-    close_input(Status::Error("Invalid bytes at the beginning of a packet (emulated tls)"));
-    return false;
-  }
-  size_t len = (buf[3] << 8) | buf[4];
-  if (it.size() < len) {
-    set_need_size(5 + len);
-    return false;
-  }
-
-  output_.append(it.cut_head(len));
-  *input_ = std::move(it);
-  return true;
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/TlsReaderByteFlow.h b/third-party/td/td/td/mtproto/TlsReaderByteFlow.h
deleted file mode 100644
index ea6468d224..0000000000
--- a/third-party/td/td/td/mtproto/TlsReaderByteFlow.h
+++ /dev/null
@@ -1,20 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/ByteFlow.h"
-
-namespace td {
-namespace mtproto {
-
-class TlsReaderByteFlow final : public ByteFlowBase {
- public:
-  bool loop() final;
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/Transport.cpp b/third-party/td/td/td/mtproto/Transport.cpp
deleted file mode 100644
index ecfe1fff4c..0000000000
--- a/third-party/td/td/td/mtproto/Transport.cpp
+++ /dev/null
@@ -1,464 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/Transport.h"
-
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/KDF.h"
-#include "td/mtproto/MessageId.h"
-
-#include "td/utils/as.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-#include <array>
-#include <tuple>
-
-namespace td {
-
-int VERBOSITY_NAME(raw_mtproto) = VERBOSITY_NAME(DEBUG) + 10;
-
-namespace mtproto {
-
-#pragma pack(push, 4)
-#if TD_MSVC
-#pragma warning(push)
-#pragma warning(disable : 4200)
-#endif
-
-struct CryptoHeader {
-  uint64 auth_key_id;
-  UInt128 message_key;
-
-  // encrypted part
-  uint64 salt;
-  uint64 session_id;
-
-  // It is weird to generate message_id and seq_no while writing a packet.
-  //
-  // uint64 msg_id;
-  // uint32 seq_no;
-  // uint32 message_data_length;
-  uint8 data[0];  // use compiler extension
-
-  static size_t encrypted_header_size() {
-    return sizeof(salt) + sizeof(session_id);
-  }
-
-  uint8 *encrypt_begin() {
-    return reinterpret_cast<uint8 *>(&salt);
-  }
-
-  const uint8 *encrypt_begin() const {
-    return reinterpret_cast<const uint8 *>(&salt);
-  }
-
-  CryptoHeader() = delete;
-  CryptoHeader(const CryptoHeader &) = delete;
-  CryptoHeader(CryptoHeader &&) = delete;
-  CryptoHeader &operator=(const CryptoHeader &) = delete;
-  CryptoHeader &operator=(CryptoHeader &&) = delete;
-  ~CryptoHeader() = delete;
-};
-
-struct CryptoPrefix {
-  uint64 msg_id;
-  uint32 seq_no;
-  uint32 message_data_length;
-};
-
-struct EndToEndHeader {
-  uint64 auth_key_id;
-  UInt128 message_key;
-
-  // encrypted part
-  // uint32 message_data_length;
-  uint8 data[0];  // use compiler extension
-
-  static size_t encrypted_header_size() {
-    return 0;
-  }
-
-  uint8 *encrypt_begin() {
-    return reinterpret_cast<uint8 *>(&data);
-  }
-
-  const uint8 *encrypt_begin() const {
-    return reinterpret_cast<const uint8 *>(&data);
-  }
-
-  EndToEndHeader() = delete;
-  EndToEndHeader(const EndToEndHeader &) = delete;
-  EndToEndHeader(EndToEndHeader &&) = delete;
-  EndToEndHeader &operator=(const EndToEndHeader &) = delete;
-  EndToEndHeader &operator=(EndToEndHeader &&) = delete;
-  ~EndToEndHeader() = delete;
-};
-
-struct EndToEndPrefix {
-  uint32 message_data_length;
-};
-
-struct NoCryptoHeader {
-  uint64 auth_key_id;
-
-  // msg_id is removed from CryptoHeader. Should be removed from here too.
-  //
-  // uint64 msg_id;
-  // uint32 message_data_length;
-  uint8 data[0];  // use compiler extension
-
-  NoCryptoHeader() = delete;
-  NoCryptoHeader(const NoCryptoHeader &) = delete;
-  NoCryptoHeader(NoCryptoHeader &&) = delete;
-  NoCryptoHeader &operator=(const NoCryptoHeader &) = delete;
-  NoCryptoHeader &operator=(NoCryptoHeader &&) = delete;
-  ~NoCryptoHeader() = delete;
-};
-
-#if TD_MSVC
-#pragma warning(pop)
-#endif
-#pragma pack(pop)
-
-// MTProto v1.0
-template <class HeaderT>
-std::pair<uint32, UInt128> Transport::calc_message_ack_and_key(const HeaderT &head, size_t data_size) {
-  Slice part(head.encrypt_begin(), head.data + data_size);
-  UInt<160> message_sha1;
-  sha1(part, message_sha1.raw);
-  return std::make_pair(as<uint32>(message_sha1.raw) | (1u << 31), as<UInt128>(message_sha1.raw + 4));
-}
-
-template <class HeaderT>
-size_t Transport::calc_crypto_size(size_t data_size) {
-  size_t enc_size = HeaderT::encrypted_header_size();
-  size_t raw_size = sizeof(HeaderT) - enc_size;
-  return raw_size + ((enc_size + data_size + 15) & ~15);
-}
-
-// MTProto v2.0
-std::pair<uint32, UInt128> Transport::calc_message_key2(const AuthKey &auth_key, int X, Slice to_encrypt) {
-  // msg_key_large = SHA256 (substr (auth_key, 88+x, 32) + plaintext + random_padding);
-  Sha256State state;
-  state.init();
-  state.feed(Slice(auth_key.key()).substr(88 + X, 32));
-  state.feed(to_encrypt);
-
-  uint8 msg_key_large_raw[32];
-  MutableSlice msg_key_large(msg_key_large_raw, sizeof(msg_key_large_raw));
-  state.extract(msg_key_large, true);
-
-  // msg_key = substr (msg_key_large, 8, 16);
-  UInt128 res;
-  as_mutable_slice(res).copy_from(msg_key_large.substr(8, 16));
-
-  return std::make_pair(as<uint32>(msg_key_large_raw) | (1u << 31), res);
-}
-
-namespace {
-size_t do_calc_crypto_size2_basic(size_t data_size, size_t enc_size, size_t raw_size) {
-  size_t encrypted_size = (enc_size + data_size + 12 + 15) & ~15;
-
-  std::array<size_t, 10> sizes{{64, 128, 192, 256, 384, 512, 768, 1024, 1280}};
-  for (auto size : sizes) {
-    if (encrypted_size <= size) {
-      return raw_size + size;
-    }
-  }
-  encrypted_size = (encrypted_size - 1280 + 447) / 448 * 448 + 1280;
-
-  return raw_size + encrypted_size;
-}
-
-size_t do_calc_crypto_size2_rand(size_t data_size, size_t enc_size, size_t raw_size) {
-  size_t rand_data_size = Random::secure_uint32() & 0xff;
-  size_t encrypted_size = (enc_size + data_size + rand_data_size + 12 + 15) & ~15;
-  return raw_size + encrypted_size;
-}
-}  // namespace
-
-template <class HeaderT>
-size_t Transport::calc_crypto_size2(size_t data_size, PacketInfo *packet_info) {
-  size_t enc_size = HeaderT::encrypted_header_size();
-  size_t raw_size = sizeof(HeaderT) - enc_size;
-  if (packet_info->use_random_padding) {
-    return do_calc_crypto_size2_rand(data_size, enc_size, raw_size);
-  } else {
-    return do_calc_crypto_size2_basic(data_size, enc_size, raw_size);
-  }
-}
-
-size_t Transport::calc_no_crypto_size(size_t data_size) {
-  return sizeof(NoCryptoHeader) + data_size;
-}
-
-Status Transport::read_no_crypto(MutableSlice message, PacketInfo *packet_info, MutableSlice *data) {
-  if (message.size() < sizeof(NoCryptoHeader)) {
-    return Status::Error(PSLICE() << "Invalid MTProto message: too small [message.size() = " << message.size()
-                                  << "] < [sizeof(NoCryptoHeader) = " << sizeof(NoCryptoHeader) << "]");
-  }
-  size_t data_size = message.size() - sizeof(NoCryptoHeader);
-  CHECK(message.size() == calc_no_crypto_size(data_size));
-  *data = MutableSlice(message.begin() + sizeof(NoCryptoHeader), data_size);
-  return Status::OK();
-}
-
-template <class HeaderT, class PrefixT>
-Status Transport::read_crypto_impl(int X, MutableSlice message, const AuthKey &auth_key, HeaderT **header_ptr,
-                                   PrefixT **prefix_ptr, MutableSlice *data, PacketInfo *packet_info) {
-  if (message.size() < sizeof(HeaderT)) {
-    return Status::Error(PSLICE() << "Invalid MTProto message: too small [message.size() = " << message.size()
-                                  << "] < [sizeof(HeaderT) = " << sizeof(HeaderT) << "]");
-  }
-  //FIXME: rewrite without reinterpret cast
-  auto *header = reinterpret_cast<HeaderT *>(message.begin());
-  *header_ptr = header;
-  auto to_decrypt = MutableSlice(header->encrypt_begin(), message.uend());
-  to_decrypt.remove_suffix(to_decrypt.size() & 15);
-
-  if (header->auth_key_id != auth_key.id()) {
-    return Status::Error(PSLICE() << "Invalid MTProto message: auth_key_id mismatch [found = "
-                                  << format::as_hex(header->auth_key_id)
-                                  << "] [expected = " << format::as_hex(auth_key.id()) << "]");
-  }
-
-  UInt256 aes_key;
-  UInt256 aes_iv;
-  if (packet_info->version == 1) {
-    KDF(auth_key.key(), header->message_key, X, &aes_key, &aes_iv);
-  } else {
-    KDF2(auth_key.key(), header->message_key, X, &aes_key, &aes_iv);
-  }
-
-  aes_ige_decrypt(as_slice(aes_key), as_mutable_slice(aes_iv), to_decrypt, to_decrypt);
-
-  size_t tail_size = message.end() - reinterpret_cast<char *>(header->data);
-  if (tail_size < sizeof(PrefixT)) {
-    return Status::Error("Too small encrypted part");
-  }
-  //FIXME: rewrite without reinterpret cast
-  auto *prefix = reinterpret_cast<PrefixT *>(header->data);
-  *prefix_ptr = prefix;
-  size_t data_size = prefix->message_data_length + sizeof(PrefixT);
-  bool is_length_bad = false;
-  UInt128 real_message_key;
-
-  if (packet_info->version == 1) {
-    is_length_bad |= packet_info->check_mod4 && prefix->message_data_length % 4 != 0;
-    auto expected_size = calc_crypto_size<HeaderT>(data_size);
-    is_length_bad |= expected_size != message.size();
-    auto check_size = data_size * (1 - is_length_bad) + tail_size * is_length_bad;
-    std::tie(packet_info->message_ack, real_message_key) = calc_message_ack_and_key(*header, check_size);
-  } else {
-    std::tie(packet_info->message_ack, real_message_key) = calc_message_key2(auth_key, X, to_decrypt);
-  }
-
-  int is_key_bad = false;
-  for (size_t i = 0; i < sizeof(real_message_key.raw); i++) {
-    is_key_bad |= real_message_key.raw[i] ^ header->message_key.raw[i];
-  }
-  if (is_key_bad != 0) {
-    return Status::Error(PSLICE() << "Invalid MTProto message: message_key mismatch [found = "
-                                  << format::as_hex_dump(header->message_key)
-                                  << "] [expected = " << format::as_hex_dump(real_message_key) << "]");
-  }
-
-  if (packet_info->version == 2) {
-    if (packet_info->check_mod4 && prefix->message_data_length % 4 != 0) {
-      return Status::Error(PSLICE() << "Invalid MTProto message: invalid length (not divisible by four)"
-                                    << tag("total_size", message.size())
-                                    << tag("message_data_length", prefix->message_data_length));
-    }
-    if (tail_size - sizeof(PrefixT) < prefix->message_data_length) {
-      return Status::Error(PSLICE() << "Invalid MTProto message: invalid length (message_data_length is too big)"
-                                    << tag("total_size", message.size())
-                                    << tag("message_data_length", prefix->message_data_length));
-    }
-    size_t pad_size = tail_size - data_size;
-    if (pad_size < 12 || pad_size > 1024) {
-      return Status::Error(PSLICE() << "Invalid MTProto message: invalid length (invalid padding length)"
-                                    << tag("padding_size", pad_size) << tag("total_size", message.size())
-                                    << tag("message_data_length", prefix->message_data_length));
-    }
-  } else {
-    if (is_length_bad) {
-      return Status::Error(PSLICE() << "Invalid MTProto message: invalid length " << tag("total_size", message.size())
-                                    << tag("message_data_length", prefix->message_data_length));
-    }
-  }
-
-  *data = MutableSlice(header->data, data_size);
-  return Status::OK();
-}
-
-Status Transport::read_crypto(MutableSlice message, const AuthKey &auth_key, PacketInfo *packet_info,
-                              MutableSlice *data) {
-  CryptoHeader *header = nullptr;
-  CryptoPrefix *prefix = nullptr;
-  TRY_STATUS(read_crypto_impl(8, message, auth_key, &header, &prefix, data, packet_info));
-  CHECK(header != nullptr);
-  CHECK(prefix != nullptr);
-  CHECK(packet_info != nullptr);
-  packet_info->type = PacketInfo::Common;
-  packet_info->salt = header->salt;
-  packet_info->session_id = header->session_id;
-  packet_info->message_id = MessageId(prefix->msg_id);
-  packet_info->seq_no = prefix->seq_no;
-  return Status::OK();
-}
-Status Transport::read_e2e_crypto(MutableSlice message, const AuthKey &auth_key, PacketInfo *packet_info,
-                                  MutableSlice *data) {
-  EndToEndHeader *header = nullptr;
-  EndToEndPrefix *prefix = nullptr;
-  TRY_STATUS(read_crypto_impl(packet_info->is_creator && packet_info->version != 1 ? 8 : 0, message, auth_key, &header,
-                              &prefix, data, packet_info));
-  CHECK(header != nullptr);
-  CHECK(prefix != nullptr);
-  CHECK(packet_info != nullptr);
-  packet_info->type = PacketInfo::EndToEnd;
-  return Status::OK();
-}
-
-BufferWriter Transport::write_no_crypto(const Storer &storer, PacketInfo *packet_info, size_t prepend_size,
-                                        size_t append_size) {
-  size_t size = calc_no_crypto_size(storer.size());
-  auto packet = BufferWriter{size, prepend_size, append_size};
-
-  // NoCryptoHeader
-  auto *begin = packet.as_mutable_slice().ubegin();
-  as<uint64>(begin) = 0;
-  auto real_size = storer.store(begin + sizeof(uint64));
-  CHECK(real_size == storer.size());
-  return packet;
-}
-
-template <class HeaderT>
-void Transport::write_crypto_impl(int X, const Storer &storer, const AuthKey &auth_key, PacketInfo *packet_info,
-                                  HeaderT *header, size_t data_size, size_t padded_size) {
-  auto real_data_size = storer.store(header->data);
-  CHECK(real_data_size == data_size);
-  VLOG(raw_mtproto) << "Send packet of size " << data_size << ':'
-                    << format::as_hex_dump<4>(Slice(header->data, data_size));
-  size_t pad_size = padded_size - (sizeof(HeaderT) + data_size);
-  MutableSlice pad(header->data + data_size, pad_size);
-  Random::secure_bytes(pad.ubegin(), pad.size());
-  MutableSlice to_encrypt = MutableSlice(header->encrypt_begin(), pad.uend());
-
-  UInt256 aes_key;
-  UInt256 aes_iv;
-  if (packet_info->version == 1) {
-    std::tie(packet_info->message_ack, header->message_key) = calc_message_ack_and_key(*header, data_size);
-    KDF(auth_key.key(), header->message_key, X, &aes_key, &aes_iv);
-  } else {
-    std::tie(packet_info->message_ack, header->message_key) = calc_message_key2(auth_key, X, to_encrypt);
-    KDF2(auth_key.key(), header->message_key, X, &aes_key, &aes_iv);
-  }
-
-  aes_ige_encrypt(as_slice(aes_key), as_mutable_slice(aes_iv), to_encrypt, to_encrypt);
-}
-
-BufferWriter Transport::write_crypto(const Storer &storer, const AuthKey &auth_key, PacketInfo *packet_info,
-                                     size_t prepend_size, size_t append_size) {
-  size_t data_size = storer.size();
-  size_t padded_size;
-  if (packet_info->version == 1) {
-    padded_size = calc_crypto_size<CryptoHeader>(data_size);
-  } else {
-    padded_size = calc_crypto_size2<CryptoHeader>(data_size, packet_info);
-  }
-  auto packet = BufferWriter{padded_size, prepend_size, append_size};
-
-  //FIXME: rewrite without reinterpret cast
-  auto &header = *reinterpret_cast<CryptoHeader *>(packet.as_mutable_slice().begin());
-  header.auth_key_id = auth_key.id();
-  header.salt = packet_info->salt;
-  header.session_id = packet_info->session_id;
-
-  write_crypto_impl(0, storer, auth_key, packet_info, &header, data_size, padded_size);
-
-  return packet;
-}
-
-BufferWriter Transport::write_e2e_crypto(const Storer &storer, const AuthKey &auth_key, PacketInfo *packet_info,
-                                         size_t prepend_size, size_t append_size) {
-  size_t data_size = storer.size();
-  size_t padded_size;
-  if (packet_info->version == 1) {
-    padded_size = calc_crypto_size<EndToEndHeader>(data_size);
-  } else {
-    padded_size = calc_crypto_size2<EndToEndHeader>(data_size, packet_info);
-  }
-  auto packet = BufferWriter{padded_size, prepend_size, append_size};
-
-  //FIXME: rewrite without reinterpret cast
-  auto &header = *reinterpret_cast<EndToEndHeader *>(packet.as_mutable_slice().begin());
-  header.auth_key_id = auth_key.id();
-
-  write_crypto_impl(packet_info->is_creator || packet_info->version == 1 ? 0 : 8, storer, auth_key, packet_info,
-                    &header, data_size, padded_size);
-
-  return packet;
-}
-
-Result<uint64> Transport::read_auth_key_id(Slice message) {
-  if (message.size() < 8) {
-    return Status::Error(PSLICE() << "Invalid MTProto message: smaller than 8 bytes [size = " << message.size() << "]");
-  }
-  return as<uint64>(message.begin());
-}
-
-Result<Transport::ReadResult> Transport::read(MutableSlice message, const AuthKey &auth_key, PacketInfo *packet_info) {
-  if (message.size() < 16) {
-    if (message.size() < 4) {
-      return Status::Error(PSLICE() << "Invalid MTProto message: smaller than 4 bytes [size = " << message.size()
-                                    << "]");
-    }
-
-    int32 code = as<int32>(message.begin());
-    if (code == 0) {
-      return ReadResult::make_nop();
-    } else if (code == -1 && message.size() >= 8) {
-      return ReadResult::make_quick_ack(as<uint32>(message.begin() + 4));
-    } else {
-      return ReadResult::make_error(code);
-    }
-  }
-
-  packet_info->no_crypto_flag = as<int64>(message.begin()) == 0;
-  MutableSlice data;
-  if (packet_info->type == PacketInfo::EndToEnd) {
-    TRY_STATUS(read_e2e_crypto(message, auth_key, packet_info, &data));
-  } else if (packet_info->no_crypto_flag) {
-    TRY_STATUS(read_no_crypto(message, packet_info, &data));
-  } else {
-    if (auth_key.empty()) {
-      return Status::Error("Failed to decrypt MTProto message: auth key is empty");
-    }
-    TRY_STATUS(read_crypto(message, auth_key, packet_info, &data));
-  }
-  return ReadResult::make_packet(data);
-}
-
-BufferWriter Transport::write(const Storer &storer, const AuthKey &auth_key, PacketInfo *packet_info,
-                              size_t prepend_size, size_t append_size) {
-  if (packet_info->type == PacketInfo::EndToEnd) {
-    return write_e2e_crypto(storer, auth_key, packet_info, prepend_size, append_size);
-  }
-  if (packet_info->no_crypto_flag) {
-    return write_no_crypto(storer, packet_info, prepend_size, append_size);
-  } else {
-    CHECK(!auth_key.empty());
-    return write_crypto(storer, auth_key, packet_info, prepend_size, append_size);
-  }
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/Transport.h b/third-party/td/td/td/mtproto/Transport.h
deleted file mode 100644
index 4cd04cf0e6..0000000000
--- a/third-party/td/td/td/mtproto/Transport.h
+++ /dev/null
@@ -1,139 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/PacketInfo.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/UInt.h"
-
-#include <utility>
-
-namespace td {
-
-extern int VERBOSITY_NAME(raw_mtproto);
-
-namespace mtproto {
-
-class AuthKey;
-
-class Transport {
- public:
-  class ReadResult {
-   public:
-    enum Type { Packet, Nop, Error, Quickack };
-
-    static ReadResult make_nop() {
-      return {};
-    }
-    static ReadResult make_error(int32 error_code) {
-      ReadResult res;
-      res.type_ = Error;
-      res.error_code_ = error_code;
-      return res;
-    }
-    static ReadResult make_packet(MutableSlice packet) {
-      CHECK(!packet.empty());
-      ReadResult res;
-      res.type_ = Packet;
-      res.packet_ = packet;
-      return res;
-    }
-    static ReadResult make_quick_ack(uint32 quick_ack) {
-      ReadResult res;
-      res.type_ = Quickack;
-      res.quick_ack_ = quick_ack;
-      return res;
-    }
-
-    Type type() const {
-      return type_;
-    }
-
-    MutableSlice packet() const {
-      CHECK(type_ == Packet);
-      return packet_;
-    }
-    uint32 quick_ack() const {
-      CHECK(type_ == Quickack);
-      return quick_ack_;
-    }
-    int32 error() const {
-      CHECK(type_ == Error);
-      return error_code_;
-    }
-
-   private:
-    Type type_ = Nop;
-    MutableSlice packet_;
-    int32 error_code_ = 0;
-    uint32 quick_ack_ = 0;
-  };
-
-  static Result<uint64> read_auth_key_id(Slice message);
-
-  // Reads MTProto packet from [message] and saves it into [data].
-  // If message is encrypted, [auth_key] is used.
-  // Decryption and unpacking is made inplace, so [data] will be subslice of [message].
-  // Returns size of MTProto packet.
-  // If dest.size() >= size, the packet is also written into [dest].
-  // If auth_key is nonempty, encryption will be used.
-  static Result<ReadResult> read(MutableSlice message, const AuthKey &auth_key,
-                                 PacketInfo *packet_info) TD_WARN_UNUSED_RESULT;
-
-  static BufferWriter write(const Storer &storer, const AuthKey &auth_key, PacketInfo *packet_info,
-                            size_t prepend_size = 0, size_t append_size = 0);
-
-  // public for testing purposes
-  static std::pair<uint32, UInt128> calc_message_key2(const AuthKey &auth_key, int X, Slice to_encrypt);
-
- private:
-  template <class HeaderT>
-  static std::pair<uint32, UInt128> calc_message_ack_and_key(const HeaderT &head, size_t data_size);
-
-  template <class HeaderT>
-  static size_t calc_crypto_size(size_t data_size);
-
-  template <class HeaderT>
-  static size_t calc_crypto_size2(size_t data_size, PacketInfo *packet_info);
-
-  static size_t calc_no_crypto_size(size_t data_size);
-
-  static Status read_no_crypto(MutableSlice message, PacketInfo *packet_info, MutableSlice *data) TD_WARN_UNUSED_RESULT;
-
-  static Status read_crypto(MutableSlice message, const AuthKey &auth_key, PacketInfo *packet_info,
-                            MutableSlice *data) TD_WARN_UNUSED_RESULT;
-
-  static Status read_e2e_crypto(MutableSlice message, const AuthKey &auth_key, PacketInfo *packet_info,
-                                MutableSlice *data) TD_WARN_UNUSED_RESULT;
-
-  template <class HeaderT, class PrefixT>
-  static Status read_crypto_impl(int X, MutableSlice message, const AuthKey &auth_key, HeaderT **header_ptr,
-                                 PrefixT **prefix_ptr, MutableSlice *data,
-                                 PacketInfo *packet_info) TD_WARN_UNUSED_RESULT;
-
-  static BufferWriter write_no_crypto(const Storer &storer, PacketInfo *packet_info, size_t prepend_size,
-                                      size_t append_size);
-
-  static BufferWriter write_crypto(const Storer &storer, const AuthKey &auth_key, PacketInfo *packet_info,
-                                   size_t prepend_size, size_t append_size);
-
-  static BufferWriter write_e2e_crypto(const Storer &storer, const AuthKey &auth_key, PacketInfo *packet_info,
-                                       size_t prepend_size, size_t append_size);
-
-  template <class HeaderT>
-  static void write_crypto_impl(int X, const Storer &storer, const AuthKey &auth_key, PacketInfo *packet_info,
-                                HeaderT *header, size_t data_size, size_t padded_size);
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/TransportType.h b/third-party/td/td/td/mtproto/TransportType.h
deleted file mode 100644
index 51ede8e758..0000000000
--- a/third-party/td/td/td/mtproto/TransportType.h
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/ProxySecret.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-namespace mtproto {
-
-struct TransportType {
-  enum Type { Tcp, ObfuscatedTcp, Http } type = Tcp;
-  int16 dc_id{0};
-  ProxySecret secret;
-
-  TransportType() = default;
-  TransportType(Type type, int16 dc_id, ProxySecret secret) : type(type), dc_id(dc_id), secret(std::move(secret)) {
-  }
-};
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/utils.cpp b/third-party/td/td/td/mtproto/utils.cpp
deleted file mode 100644
index 4c9d3ecc5d..0000000000
--- a/third-party/td/td/td/mtproto/utils.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/utils.h"
-
-#include "td/mtproto/mtproto_api.h"
-
-namespace td {
-namespace mtproto {
-
-TLStorer<mtproto_api::Function> create_function_storer(const mtproto_api::Function &function) {
-  return TLStorer<mtproto_api::Function>(function);
-}
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/mtproto/utils.h b/third-party/td/td/td/mtproto/utils.h
deleted file mode 100644
index 5519887b3f..0000000000
--- a/third-party/td/td/td/mtproto/utils.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Storer.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/tl_storers.h"
-
-#include <limits>
-
-namespace td {
-
-template <class T>
-using TLStorer = DefaultStorer<T>;
-
-template <class T>
-class TLObjectStorer final : public Storer {
-  mutable size_t size_ = std::numeric_limits<size_t>::max();
-  const T &object_;
-
- public:
-  explicit TLObjectStorer(const T &object) : object_(object) {
-  }
-
-  size_t size() const final {
-    if (size_ == std::numeric_limits<size_t>::max()) {
-      TlStorerCalcLength storer;
-      storer.store_binary(T::ID);
-      object_.store(storer);
-      size_ = storer.get_length();
-    }
-    return size_;
-  }
-  size_t store(uint8 *ptr) const final {
-    TlStorerUnsafe storer(ptr);
-    storer.store_binary(T::ID);
-    object_.store(storer);
-    return static_cast<size_t>(storer.get_buf() - ptr);
-  }
-};
-
-namespace mtproto_api {
-class Function;
-}  // namespace mtproto_api
-
-namespace mtproto {
-
-TLStorer<mtproto_api::Function> create_function_storer(const mtproto_api::Function &function);
-
-}  // namespace mtproto
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AccentColorId.h b/third-party/td/td/td/telegram/AccentColorId.h
deleted file mode 100644
index deba6222bb..0000000000
--- a/third-party/td/td/td/telegram/AccentColorId.h
+++ /dev/null
@@ -1,82 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class AccentColorId {
-  int32 id = -1;
-
- public:
-  AccentColorId() = default;
-
-  explicit constexpr AccentColorId(int32 accent_color_id) : id(accent_color_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  AccentColorId(T accent_color_id) = delete;
-
-  explicit AccentColorId(UserId user_id) : id(static_cast<int32>(user_id.get() % 7)) {
-  }
-
-  explicit AccentColorId(ChatId chat_id) : id(static_cast<int32>(chat_id.get() % 7)) {
-  }
-
-  explicit AccentColorId(ChannelId channel_id) : id(static_cast<int32>(channel_id.get() % 7)) {
-  }
-
-  bool is_valid() const {
-    return id >= 0;
-  }
-
-  bool is_built_in() const {
-    return 0 <= id && id < 7;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const AccentColorId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const AccentColorId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_int();
-  }
-};
-
-struct AccentColorIdHash {
-  uint32 operator()(AccentColorId accent_color_id) const {
-    return Hash<int32>()(accent_color_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, AccentColorId accent_color_id) {
-  return string_builder << "accent color #" << accent_color_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AccessRights.h b/third-party/td/td/td/telegram/AccessRights.h
deleted file mode 100644
index b02e4c6283..0000000000
--- a/third-party/td/td/td/telegram/AccessRights.h
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-enum class AccessRights : int32 { Know, Read, Edit, Write };
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AccountManager.cpp b/third-party/td/td/td/telegram/AccountManager.cpp
deleted file mode 100644
index 9bc0b29ef6..0000000000
--- a/third-party/td/td/td/telegram/AccountManager.cpp
+++ /dev/null
@@ -1,1344 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AccountManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DeviceTokenManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-
-namespace td {
-
-static td_api::object_ptr<td_api::SessionType> get_session_type_object(
-    const tl_object_ptr<telegram_api::authorization> &authorization) {
-  auto contains = [](const string &str, const char *substr) {
-    return str.find(substr) != string::npos;
-  };
-
-  const string &app_name = authorization->app_name_;
-  auto device_model = to_lower(authorization->device_model_);
-  auto platform = to_lower(authorization->platform_);
-  auto system_version = to_lower(authorization->system_version_);
-
-  if (device_model.find("xbox") != string::npos) {
-    return td_api::make_object<td_api::sessionTypeXbox>();
-  }
-
-  bool is_web = [&] {
-    CSlice web_name("Web");
-    auto pos = app_name.find(web_name.c_str());
-    if (pos == string::npos) {
-      return false;
-    }
-
-    auto next_character = app_name[pos + web_name.size()];
-    return !('a' <= next_character && next_character <= 'z');
-  }();
-
-  if (is_web) {
-    if (contains(device_model, "brave")) {
-      return td_api::make_object<td_api::sessionTypeBrave>();
-    } else if (contains(device_model, "vivaldi")) {
-      return td_api::make_object<td_api::sessionTypeVivaldi>();
-    } else if (contains(device_model, "opera") || contains(device_model, "opr")) {
-      return td_api::make_object<td_api::sessionTypeOpera>();
-    } else if (contains(device_model, "edg")) {
-      return td_api::make_object<td_api::sessionTypeEdge>();
-    } else if (contains(device_model, "chrome")) {
-      return td_api::make_object<td_api::sessionTypeChrome>();
-    } else if (contains(device_model, "firefox") || contains(device_model, "fxios")) {
-      return td_api::make_object<td_api::sessionTypeFirefox>();
-    } else if (contains(device_model, "safari")) {
-      return td_api::make_object<td_api::sessionTypeSafari>();
-    }
-  }
-
-  if (begins_with(platform, "android") || contains(system_version, "android")) {
-    return td_api::make_object<td_api::sessionTypeAndroid>();
-  } else if (begins_with(platform, "windows") || contains(system_version, "windows")) {
-    return td_api::make_object<td_api::sessionTypeWindows>();
-  } else if (begins_with(platform, "ubuntu") || contains(system_version, "ubuntu")) {
-    return td_api::make_object<td_api::sessionTypeUbuntu>();
-  } else if (begins_with(platform, "linux") || contains(system_version, "linux")) {
-    return td_api::make_object<td_api::sessionTypeLinux>();
-  }
-
-  auto is_ios = begins_with(platform, "ios") || contains(system_version, "ios");
-  auto is_macos = begins_with(platform, "macos") || contains(system_version, "macos");
-  if (is_ios && contains(device_model, "iphone")) {
-    return td_api::make_object<td_api::sessionTypeIphone>();
-  } else if (is_ios && contains(device_model, "ipad")) {
-    return td_api::make_object<td_api::sessionTypeIpad>();
-  } else if (is_macos && contains(device_model, "mac")) {
-    return td_api::make_object<td_api::sessionTypeMac>();
-  } else if (is_ios || is_macos) {
-    return td_api::make_object<td_api::sessionTypeApple>();
-  }
-
-  return td_api::make_object<td_api::sessionTypeUnknown>();
-}
-
-static td_api::object_ptr<td_api::session> convert_authorization_object(
-    tl_object_ptr<telegram_api::authorization> &&authorization) {
-  CHECK(authorization != nullptr);
-  return td_api::make_object<td_api::session>(
-      authorization->hash_, authorization->current_, authorization->password_pending_, authorization->unconfirmed_,
-      !authorization->encrypted_requests_disabled_, !authorization->call_requests_disabled_,
-      get_session_type_object(authorization), authorization->api_id_, authorization->app_name_,
-      authorization->app_version_, authorization->official_app_, authorization->device_model_, authorization->platform_,
-      authorization->system_version_, authorization->date_created_, authorization->date_active_, authorization->ip_,
-      authorization->country_);
-}
-
-class SetDefaultHistoryTtlQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetDefaultHistoryTtlQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 account_ttl) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_setDefaultHistoryTTL(account_ttl), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setDefaultHistoryTTL>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    if (!result) {
-      return on_error(Status::Error(500, "Internal Server Error: failed to set default message TTL"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetDefaultHistoryTtlQuery final : public Td::ResultHandler {
-  Promise<int32> promise_;
-
- public:
-  explicit GetDefaultHistoryTtlQuery(Promise<int32> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getDefaultHistoryTTL()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getDefaultHistoryTTL>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetDefaultHistoryTtlQuery: " << to_string(ptr);
-
-    promise_.set_value(std::move(ptr->period_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetAccountTtlQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetAccountTtlQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 account_ttl) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_setAccountTTL(make_tl_object<telegram_api::accountDaysTTL>(account_ttl)), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_setAccountTTL>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    if (!result) {
-      return on_error(Status::Error(500, "Internal Server Error: failed to set account TTL"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetAccountTtlQuery final : public Td::ResultHandler {
-  Promise<int32> promise_;
-
- public:
-  explicit GetAccountTtlQuery(Promise<int32> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getAccountTTL()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getAccountTTL>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetAccountTtlQuery: " << to_string(ptr);
-
-    promise_.set_value(std::move(ptr->days_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AcceptLoginTokenQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::session>> promise_;
-
- public:
-  explicit AcceptLoginTokenQuery(Promise<td_api::object_ptr<td_api::session>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &login_token) {
-    send_query(G()->net_query_creator().create(telegram_api::auth_acceptLoginToken(BufferSlice(login_token))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::auth_acceptLoginToken>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for AcceptLoginTokenQuery: " << to_string(result_ptr.ok());
-    promise_.set_value(convert_authorization_object(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetAuthorizationsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::sessions>> promise_;
-
- public:
-  explicit GetAuthorizationsQuery(Promise<td_api::object_ptr<td_api::sessions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getAuthorizations()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getAuthorizations>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetAuthorizationsQuery: " << to_string(ptr);
-
-    auto ttl_days = ptr->authorization_ttl_days_;
-    if (ttl_days <= 0 || ttl_days > 366) {
-      LOG(ERROR) << "Receive invalid inactive sessions TTL " << ttl_days;
-      ttl_days = 180;
-    }
-
-    auto results = td_api::make_object<td_api::sessions>(
-        transform(std::move(ptr->authorizations_), convert_authorization_object), ttl_days);
-    std::sort(results->sessions_.begin(), results->sessions_.end(),
-              [](const td_api::object_ptr<td_api::session> &lhs, const td_api::object_ptr<td_api::session> &rhs) {
-                if (lhs->is_current_ != rhs->is_current_) {
-                  return lhs->is_current_;
-                }
-                if (lhs->is_password_pending_ != rhs->is_password_pending_) {
-                  return lhs->is_password_pending_;
-                }
-                if (lhs->is_unconfirmed_ != rhs->is_unconfirmed_) {
-                  return lhs->is_unconfirmed_;
-                }
-                return lhs->last_active_date_ > rhs->last_active_date_;
-              });
-    for (auto &session : results->sessions_) {
-      if (!session->is_current_ && !session->is_unconfirmed_) {
-        td_->account_manager_->on_confirm_authorization(session->id_);
-      }
-    }
-
-    promise_.set_value(std::move(results));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResetAuthorizationQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ResetAuthorizationQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 authorization_id) {
-    send_query(G()->net_query_creator().create(telegram_api::account_resetAuthorization(authorization_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_resetAuthorization>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to terminate session";
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResetAuthorizationsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ResetAuthorizationsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::auth_resetAuthorizations()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::auth_resetAuthorizations>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to terminate all sessions";
-    send_closure(td_->device_token_manager_, &DeviceTokenManager::reregister_device);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ChangeAuthorizationSettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ChangeAuthorizationSettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash, bool set_encrypted_requests_disabled, bool encrypted_requests_disabled,
-            bool set_call_requests_disabled, bool call_requests_disabled, bool confirm) {
-    int32 flags = 0;
-    if (set_encrypted_requests_disabled) {
-      flags |= telegram_api::account_changeAuthorizationSettings::ENCRYPTED_REQUESTS_DISABLED_MASK;
-    }
-    if (set_call_requests_disabled) {
-      flags |= telegram_api::account_changeAuthorizationSettings::CALL_REQUESTS_DISABLED_MASK;
-    }
-    send_query(
-        G()->net_query_creator().create(telegram_api::account_changeAuthorizationSettings(
-                                            flags, confirm, hash, encrypted_requests_disabled, call_requests_disabled),
-                                        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_changeAuthorizationSettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to change session settings";
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetAuthorizationTtlQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetAuthorizationTtlQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 authorization_ttl_days) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::account_setAuthorizationTTL(authorization_ttl_days), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_setAuthorizationTTL>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to set inactive session TTL";
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetWebAuthorizationsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::connectedWebsites>> promise_;
-
- public:
-  explicit GetWebAuthorizationsQuery(Promise<td_api::object_ptr<td_api::connectedWebsites>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getWebAuthorizations()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getWebAuthorizations>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetWebAuthorizationsQuery: " << to_string(ptr);
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetWebAuthorizationsQuery");
-
-    auto results = td_api::make_object<td_api::connectedWebsites>();
-    results->websites_.reserve(ptr->authorizations_.size());
-    for (auto &authorization : ptr->authorizations_) {
-      CHECK(authorization != nullptr);
-      UserId bot_user_id(authorization->bot_id_);
-      if (!bot_user_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid bot " << bot_user_id;
-        bot_user_id = UserId();
-      }
-
-      results->websites_.push_back(td_api::make_object<td_api::connectedWebsite>(
-          authorization->hash_, authorization->domain_,
-          td_->user_manager_->get_user_id_object(bot_user_id, "GetWebAuthorizationsQuery"), authorization->browser_,
-          authorization->platform_, authorization->date_created_, authorization->date_active_, authorization->ip_,
-          authorization->region_));
-    }
-
-    promise_.set_value(std::move(results));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResetWebAuthorizationQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ResetWebAuthorizationQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::account_resetWebAuthorization(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_resetWebAuthorization>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to disconnect website";
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResetWebAuthorizationsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ResetWebAuthorizationsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_resetWebAuthorizations()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_resetWebAuthorizations>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to disconnect all websites";
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ExportContactTokenQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::userLink>> promise_;
-
- public:
-  explicit ExportContactTokenQuery(Promise<td_api::object_ptr<td_api::userLink>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_exportContactToken()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_exportContactToken>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ExportContactTokenQuery: " << to_string(ptr);
-    promise_.set_value(td_api::make_object<td_api::userLink>(
-        ptr->url_, td::max(static_cast<int32>(ptr->expires_ - G()->unix_time()), static_cast<int32>(1))));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ImportContactTokenQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::user>> promise_;
-
- public:
-  explicit ImportContactTokenQuery(Promise<td_api::object_ptr<td_api::user>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &token) {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_importContactToken(token)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_importContactToken>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto user = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ImportContactTokenQuery: " << to_string(user);
-
-    auto user_id = UserManager::get_user_id(user);
-    td_->user_manager_->on_get_user(std::move(user), "ImportContactTokenQuery");
-    promise_.set_value(td_->user_manager_->get_user_object(user_id));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class InvalidateSignInCodesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit InvalidateSignInCodesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<string> &&codes) {
-    send_query(G()->net_query_creator().create(telegram_api::account_invalidateSignInCodes(std::move(codes))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_invalidateSignInCodes>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for InvalidateSignInCodesQuery: " << result_ptr.ok();
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(DEBUG) << "Receive error for InvalidateSignInCodesQuery: " << status;
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AccountManager::UnconfirmedAuthorization {
-  int64 hash_ = 0;
-  int32 date_ = 0;
-  string device_;
-  string location_;
-
- public:
-  UnconfirmedAuthorization() = default;
-  UnconfirmedAuthorization(int64 hash, int32 date, string &&device, string &&location)
-      : hash_(hash), date_(date), device_(std::move(device)), location_(std::move(location)) {
-  }
-
-  int64 get_hash() const {
-    return hash_;
-  }
-
-  int32 get_date() const {
-    return date_;
-  }
-
-  td_api::object_ptr<td_api::unconfirmedSession> get_unconfirmed_session_object() const {
-    return td_api::make_object<td_api::unconfirmedSession>(hash_, date_, device_, location_);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    END_STORE_FLAGS();
-    td::store(hash_, storer);
-    td::store(date_, storer);
-    td::store(device_, storer);
-    td::store(location_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    END_PARSE_FLAGS();
-    td::parse(hash_, parser);
-    td::parse(date_, parser);
-    td::parse(device_, parser);
-    td::parse(location_, parser);
-  }
-};
-
-class AccountManager::UnconfirmedAuthorizations {
-  vector<UnconfirmedAuthorization> authorizations_;
-
-  static int32 get_authorization_autoconfirm_period() {
-    return narrow_cast<int32>(G()->get_option_integer("authorization_autoconfirm_period", 604800));
-  }
-
- public:
-  bool is_empty() const {
-    return authorizations_.empty();
-  }
-
-  bool add_authorization(UnconfirmedAuthorization &&unconfirmed_authorization, bool &is_first_changed) {
-    if (unconfirmed_authorization.get_hash() == 0) {
-      LOG(ERROR) << "Receive empty unconfirmed authorization";
-      return false;
-    }
-    for (const auto &authorization : authorizations_) {
-      if (authorization.get_hash() == unconfirmed_authorization.get_hash()) {
-        return false;
-      }
-    }
-    auto it = authorizations_.begin();
-    while (it != authorizations_.end() && it->get_date() <= unconfirmed_authorization.get_date()) {
-      ++it;
-    }
-    is_first_changed = it == authorizations_.begin();
-    authorizations_.insert(it, std::move(unconfirmed_authorization));
-    return true;
-  }
-
-  bool delete_authorization(int64 hash, bool &is_first_changed) {
-    auto it = authorizations_.begin();
-    while (it != authorizations_.end() && it->get_hash() != hash) {
-      ++it;
-    }
-    if (it == authorizations_.end()) {
-      return false;
-    }
-    is_first_changed = it == authorizations_.begin();
-    authorizations_.erase(it);
-    return true;
-  }
-
-  bool delete_expired_authorizations() {
-    auto up_to_date = G()->unix_time() - get_authorization_autoconfirm_period();
-    auto it = authorizations_.begin();
-    while (it != authorizations_.end() && it->get_date() <= up_to_date) {
-      ++it;
-    }
-    if (it == authorizations_.begin()) {
-      return false;
-    }
-    authorizations_.erase(authorizations_.begin(), it);
-    return true;
-  }
-
-  int32 get_next_authorization_expire_date() const {
-    CHECK(!authorizations_.empty());
-    return authorizations_[0].get_date() + get_authorization_autoconfirm_period();
-  }
-
-  td_api::object_ptr<td_api::unconfirmedSession> get_first_unconfirmed_session_object() const {
-    CHECK(!authorizations_.empty());
-    return authorizations_[0].get_unconfirmed_session_object();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    CHECK(!authorizations_.empty());
-    td::store(authorizations_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(authorizations_, parser);
-  }
-};
-
-AccountManager::AccountManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-AccountManager::~AccountManager() = default;
-
-void AccountManager::start_up() {
-  auto unconfirmed_authorizations_log_event_string =
-      G()->td_db()->get_binlog_pmc()->get(get_unconfirmed_authorizations_key());
-  if (!unconfirmed_authorizations_log_event_string.empty()) {
-    log_event_parse(unconfirmed_authorizations_, unconfirmed_authorizations_log_event_string).ensure();
-    CHECK(unconfirmed_authorizations_ != nullptr);
-    if (delete_expired_unconfirmed_authorizations()) {
-      save_unconfirmed_authorizations();
-    }
-    if (unconfirmed_authorizations_ != nullptr) {
-      update_unconfirmed_authorization_timeout(false);
-      send_update_unconfirmed_session();
-      get_active_sessions(Auto());
-    }
-  }
-}
-
-void AccountManager::timeout_expired() {
-  update_unconfirmed_authorization_timeout(true);
-  if (unconfirmed_authorizations_ != nullptr) {
-    get_active_sessions(Auto());
-  }
-}
-
-void AccountManager::tear_down() {
-  parent_.reset();
-}
-
-class AccountManager::SetDefaultHistoryTtlOnServerLogEvent {
- public:
-  int32 message_ttl_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(message_ttl_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(message_ttl_, parser);
-  }
-};
-
-void AccountManager::set_default_history_ttl_on_server(int32 message_ttl, uint64 log_event_id,
-                                                       Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    SetDefaultHistoryTtlOnServerLogEvent log_event{message_ttl};
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SetDefaultHistoryTtlOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<SetDefaultHistoryTtlQuery>(std::move(promise))->send(message_ttl);
-}
-
-void AccountManager::set_default_message_ttl(int32 message_ttl, Promise<Unit> &&promise) {
-  set_default_history_ttl_on_server(message_ttl, 0, std::move(promise));
-}
-
-void AccountManager::get_default_message_ttl(Promise<int32> &&promise) {
-  td_->create_handler<GetDefaultHistoryTtlQuery>(std::move(promise))->send();
-}
-
-class AccountManager::SetAccountTtlOnServerLogEvent {
- public:
-  int32 account_ttl_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(account_ttl_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(account_ttl_, parser);
-  }
-};
-
-void AccountManager::set_account_ttl_on_server(int32 account_ttl, uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    SetAccountTtlOnServerLogEvent log_event{account_ttl};
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SetAccountTtlOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<SetAccountTtlQuery>(std::move(promise))->send(account_ttl);
-}
-
-void AccountManager::set_account_ttl(int32 account_ttl, Promise<Unit> &&promise) {
-  set_account_ttl_on_server(account_ttl, 0, std::move(promise));
-}
-
-void AccountManager::get_account_ttl(Promise<int32> &&promise) {
-  td_->create_handler<GetAccountTtlQuery>(std::move(promise))->send();
-}
-
-void AccountManager::confirm_qr_code_authentication(const string &link,
-                                                    Promise<td_api::object_ptr<td_api::session>> &&promise) {
-  Slice prefix("tg://login?token=");
-  if (!begins_with(to_lower(link), prefix)) {
-    return promise.set_error(Status::Error(400, "AUTH_TOKEN_INVALID"));
-  }
-  auto r_token = base64url_decode(Slice(link).substr(prefix.size()));
-  if (r_token.is_error()) {
-    return promise.set_error(Status::Error(400, "AUTH_TOKEN_INVALID"));
-  }
-  td_->create_handler<AcceptLoginTokenQuery>(std::move(promise))->send(r_token.ok());
-}
-
-void AccountManager::get_active_sessions(Promise<td_api::object_ptr<td_api::sessions>> &&promise) {
-  td_->create_handler<GetAuthorizationsQuery>(std::move(promise))->send();
-}
-
-class AccountManager::ResetAuthorizationOnServerLogEvent {
- public:
-  int64 hash_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(hash_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(hash_, parser);
-  }
-};
-
-void AccountManager::reset_authorization_on_server(int64 hash, uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    ResetAuthorizationOnServerLogEvent log_event{hash};
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ResetAuthorizationOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<ResetAuthorizationQuery>(std::move(promise))->send(hash);
-}
-
-void AccountManager::terminate_session(int64 session_id, Promise<Unit> &&promise) {
-  on_confirm_authorization(session_id);
-  reset_authorization_on_server(session_id, 0, std::move(promise));
-}
-
-class AccountManager::ResetAuthorizationsOnServerLogEvent {
- public:
-  template <class StorerT>
-  void store(StorerT &storer) const {
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-  }
-};
-
-void AccountManager::reset_authorizations_on_server(uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    ResetAuthorizationsOnServerLogEvent log_event;
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ResetAuthorizationsOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<ResetAuthorizationsQuery>(std::move(promise))->send();
-}
-
-void AccountManager::terminate_all_other_sessions(Promise<Unit> &&promise) {
-  if (unconfirmed_authorizations_ != nullptr) {
-    unconfirmed_authorizations_ = nullptr;
-    update_unconfirmed_authorization_timeout(false);
-    send_update_unconfirmed_session();
-    save_unconfirmed_authorizations();
-  }
-  reset_authorizations_on_server(0, std::move(promise));
-}
-
-class AccountManager::ChangeAuthorizationSettingsOnServerLogEvent {
- public:
-  int64 hash_;
-  bool set_encrypted_requests_disabled_;
-  bool encrypted_requests_disabled_;
-  bool set_call_requests_disabled_;
-  bool call_requests_disabled_;
-  bool confirm_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(set_encrypted_requests_disabled_);
-    STORE_FLAG(encrypted_requests_disabled_);
-    STORE_FLAG(set_call_requests_disabled_);
-    STORE_FLAG(call_requests_disabled_);
-    STORE_FLAG(confirm_);
-    END_STORE_FLAGS();
-    td::store(hash_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(set_encrypted_requests_disabled_);
-    PARSE_FLAG(encrypted_requests_disabled_);
-    PARSE_FLAG(set_call_requests_disabled_);
-    PARSE_FLAG(call_requests_disabled_);
-    PARSE_FLAG(confirm_);
-    END_PARSE_FLAGS();
-    td::parse(hash_, parser);
-  }
-};
-
-void AccountManager::change_authorization_settings_on_server(int64 hash, bool set_encrypted_requests_disabled,
-                                                             bool encrypted_requests_disabled,
-                                                             bool set_call_requests_disabled,
-                                                             bool call_requests_disabled, bool confirm,
-                                                             uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    ChangeAuthorizationSettingsOnServerLogEvent log_event{hash,
-                                                          set_encrypted_requests_disabled,
-                                                          encrypted_requests_disabled,
-                                                          set_call_requests_disabled,
-                                                          call_requests_disabled,
-                                                          confirm};
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ChangeAuthorizationSettingsOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<ChangeAuthorizationSettingsQuery>(std::move(promise))
-      ->send(hash, set_encrypted_requests_disabled, encrypted_requests_disabled, set_call_requests_disabled,
-             call_requests_disabled, confirm);
-}
-
-void AccountManager::confirm_session(int64 session_id, Promise<Unit> &&promise) {
-  if (!on_confirm_authorization(session_id)) {
-    // the authorization can be from the list of active authorizations, but the update could have been lost
-    // return promise.set_value(Unit());
-  }
-  change_authorization_settings_on_server(session_id, false, false, false, false, true, 0, std::move(promise));
-}
-
-void AccountManager::toggle_session_can_accept_calls(int64 session_id, bool can_accept_calls, Promise<Unit> &&promise) {
-  change_authorization_settings_on_server(session_id, false, false, true, !can_accept_calls, false, 0,
-                                          std::move(promise));
-}
-
-void AccountManager::toggle_session_can_accept_secret_chats(int64 session_id, bool can_accept_secret_chats,
-                                                            Promise<Unit> &&promise) {
-  change_authorization_settings_on_server(session_id, true, !can_accept_secret_chats, false, false, false, 0,
-                                          std::move(promise));
-}
-
-class AccountManager::SetAuthorizationTtlOnServerLogEvent {
- public:
-  int32 authorization_ttl_days_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(authorization_ttl_days_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(authorization_ttl_days_, parser);
-  }
-};
-
-void AccountManager::set_authorization_ttl_on_server(int32 authorization_ttl_days, uint64 log_event_id,
-                                                     Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    SetAuthorizationTtlOnServerLogEvent log_event{authorization_ttl_days};
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SetAuthorizationTtlOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<SetAuthorizationTtlQuery>(std::move(promise))->send(authorization_ttl_days);
-}
-
-void AccountManager::set_inactive_session_ttl_days(int32 authorization_ttl_days, Promise<Unit> &&promise) {
-  set_authorization_ttl_on_server(authorization_ttl_days, 0, std::move(promise));
-}
-
-void AccountManager::get_connected_websites(Promise<td_api::object_ptr<td_api::connectedWebsites>> &&promise) {
-  td_->create_handler<GetWebAuthorizationsQuery>(std::move(promise))->send();
-}
-
-class AccountManager::ResetWebAuthorizationOnServerLogEvent {
- public:
-  int64 hash_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(hash_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(hash_, parser);
-  }
-};
-
-void AccountManager::reset_web_authorization_on_server(int64 hash, uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    ResetWebAuthorizationOnServerLogEvent log_event{hash};
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ResetWebAuthorizationOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<ResetWebAuthorizationQuery>(std::move(promise))->send(hash);
-}
-
-void AccountManager::disconnect_website(int64 website_id, Promise<Unit> &&promise) {
-  reset_web_authorization_on_server(website_id, 0, std::move(promise));
-}
-
-class AccountManager::ResetWebAuthorizationsOnServerLogEvent {
- public:
-  template <class StorerT>
-  void store(StorerT &storer) const {
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-  }
-};
-
-void AccountManager::reset_web_authorizations_on_server(uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    ResetWebAuthorizationsOnServerLogEvent log_event;
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ResetWebAuthorizationsOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<ResetWebAuthorizationsQuery>(std::move(promise))->send();
-}
-
-void AccountManager::disconnect_all_websites(Promise<Unit> &&promise) {
-  reset_web_authorizations_on_server(0, std::move(promise));
-}
-
-void AccountManager::get_user_link(Promise<td_api::object_ptr<td_api::userLink>> &&promise) {
-  td_->user_manager_->get_me(
-      PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &AccountManager::get_user_link_impl, std::move(promise));
-        }
-      }));
-}
-
-void AccountManager::get_user_link_impl(Promise<td_api::object_ptr<td_api::userLink>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  auto username = td_->user_manager_->get_user_first_username(td_->user_manager_->get_my_id());
-  if (!username.empty()) {
-    return promise.set_value(
-        td_api::make_object<td_api::userLink>(LinkManager::get_public_dialog_link(username, Slice(), false, true), 0));
-  }
-  td_->create_handler<ExportContactTokenQuery>(std::move(promise))->send();
-}
-
-void AccountManager::import_contact_token(const string &token, Promise<td_api::object_ptr<td_api::user>> &&promise) {
-  td_->create_handler<ImportContactTokenQuery>(std::move(promise))->send(token);
-}
-
-class AccountManager::InvalidateSignInCodesOnServerLogEvent {
- public:
-  vector<string> authentication_codes_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(authentication_codes_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(authentication_codes_, parser);
-  }
-};
-
-void AccountManager::invalidate_sign_in_codes_on_server(vector<string> authentication_codes, uint64 log_event_id) {
-  if (log_event_id == 0) {
-    InvalidateSignInCodesOnServerLogEvent log_event{authentication_codes};
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::InvalidateSignInCodesOnServer,
-                              get_log_event_storer(log_event));
-  }
-
-  td_->create_handler<InvalidateSignInCodesQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(std::move(authentication_codes));
-}
-
-void AccountManager::invalidate_authentication_codes(vector<string> &&authentication_codes) {
-  invalidate_sign_in_codes_on_server(std::move(authentication_codes), 0);
-}
-
-void AccountManager::on_new_unconfirmed_authorization(int64 hash, int32 date, string &&device, string &&location) {
-  if (td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Receive unconfirmed session by a bot";
-    return;
-  }
-  auto unix_time = G()->unix_time();
-  if (date > unix_time + 1) {
-    LOG(ERROR) << "Receive new session at " << date << ", but the current time is " << unix_time;
-    date = unix_time + 1;
-  }
-  if (unconfirmed_authorizations_ == nullptr) {
-    unconfirmed_authorizations_ = make_unique<UnconfirmedAuthorizations>();
-  }
-  bool is_first_changed = false;
-  if (unconfirmed_authorizations_->add_authorization({hash, date, std::move(device), std::move(location)},
-                                                     is_first_changed)) {
-    CHECK(!unconfirmed_authorizations_->is_empty());
-    if (is_first_changed) {
-      update_unconfirmed_authorization_timeout(false);
-      send_update_unconfirmed_session();
-    }
-    save_unconfirmed_authorizations();
-  }
-}
-
-bool AccountManager::on_confirm_authorization(int64 hash) {
-  bool is_first_changed = false;
-  if (unconfirmed_authorizations_ != nullptr &&
-      unconfirmed_authorizations_->delete_authorization(hash, is_first_changed)) {
-    if (unconfirmed_authorizations_->is_empty()) {
-      unconfirmed_authorizations_ = nullptr;
-    }
-    if (is_first_changed) {
-      update_unconfirmed_authorization_timeout(false);
-      send_update_unconfirmed_session();
-    }
-    save_unconfirmed_authorizations();
-    return true;
-  }
-  return false;
-}
-
-string AccountManager::get_unconfirmed_authorizations_key() {
-  return "new_authorizations";
-}
-
-void AccountManager::save_unconfirmed_authorizations() const {
-  if (unconfirmed_authorizations_ == nullptr) {
-    G()->td_db()->get_binlog_pmc()->erase(get_unconfirmed_authorizations_key());
-  } else {
-    G()->td_db()->get_binlog_pmc()->set(get_unconfirmed_authorizations_key(),
-                                        log_event_store(unconfirmed_authorizations_).as_slice().str());
-  }
-}
-
-bool AccountManager::delete_expired_unconfirmed_authorizations() {
-  if (unconfirmed_authorizations_ != nullptr && unconfirmed_authorizations_->delete_expired_authorizations()) {
-    if (unconfirmed_authorizations_->is_empty()) {
-      unconfirmed_authorizations_ = nullptr;
-    }
-    return true;
-  }
-  return false;
-}
-
-void AccountManager::update_unconfirmed_authorization_timeout(bool is_external) {
-  if (delete_expired_unconfirmed_authorizations() && is_external) {
-    send_update_unconfirmed_session();
-    save_unconfirmed_authorizations();
-  }
-  if (unconfirmed_authorizations_ == nullptr) {
-    cancel_timeout();
-  } else {
-    set_timeout_in(min(unconfirmed_authorizations_->get_next_authorization_expire_date() - G()->unix_time() + 1, 3600));
-  }
-}
-
-td_api::object_ptr<td_api::updateUnconfirmedSession> AccountManager::get_update_unconfirmed_session() const {
-  if (unconfirmed_authorizations_ == nullptr) {
-    return td_api::make_object<td_api::updateUnconfirmedSession>(nullptr);
-  }
-  return td_api::make_object<td_api::updateUnconfirmedSession>(
-      unconfirmed_authorizations_->get_first_unconfirmed_session_object());
-}
-
-void AccountManager::send_update_unconfirmed_session() const {
-  send_closure(G()->td(), &Td::send_update, get_update_unconfirmed_session());
-}
-
-void AccountManager::on_binlog_events(vector<BinlogEvent> &&events) {
-  if (G()->close_flag()) {
-    return;
-  }
-  for (auto &event : events) {
-    switch (event.type_) {
-      case LogEvent::HandlerType::ChangeAuthorizationSettingsOnServer: {
-        ChangeAuthorizationSettingsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        change_authorization_settings_on_server(
-            log_event.hash_, log_event.set_encrypted_requests_disabled_, log_event.encrypted_requests_disabled_,
-            log_event.set_call_requests_disabled_, log_event.call_requests_disabled_, log_event.confirm_, event.id_,
-            Auto());
-        break;
-      }
-      case LogEvent::HandlerType::InvalidateSignInCodesOnServer: {
-        InvalidateSignInCodesOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        invalidate_sign_in_codes_on_server(std::move(log_event.authentication_codes_), event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::ResetAuthorizationOnServer: {
-        ResetAuthorizationOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        reset_authorization_on_server(log_event.hash_, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::ResetAuthorizationsOnServer: {
-        ResetAuthorizationsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        reset_authorizations_on_server(event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::ResetWebAuthorizationOnServer: {
-        ResetWebAuthorizationOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        reset_web_authorization_on_server(log_event.hash_, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::ResetWebAuthorizationsOnServer: {
-        ResetWebAuthorizationsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        reset_web_authorizations_on_server(event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::SetAccountTtlOnServer: {
-        SetAccountTtlOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        set_account_ttl_on_server(log_event.account_ttl_, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::SetAuthorizationTtlOnServer: {
-        SetAuthorizationTtlOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        set_authorization_ttl_on_server(log_event.authorization_ttl_days_, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::SetDefaultHistoryTtlOnServer: {
-        SetDefaultHistoryTtlOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        set_default_history_ttl_on_server(log_event.message_ttl_, event.id_, Auto());
-        break;
-      }
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  }
-}
-
-void AccountManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (unconfirmed_authorizations_ != nullptr) {
-    updates.push_back(get_update_unconfirmed_session());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AccountManager.h b/third-party/td/td/td/telegram/AccountManager.h
deleted file mode 100644
index 7f8e25a4e7..0000000000
--- a/third-party/td/td/td/telegram/AccountManager.h
+++ /dev/null
@@ -1,136 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-struct BinlogEvent;
-
-class Td;
-
-class AccountManager final : public Actor {
- public:
-  AccountManager(Td *td, ActorShared<> parent);
-  AccountManager(const AccountManager &) = delete;
-  AccountManager &operator=(const AccountManager &) = delete;
-  AccountManager(AccountManager &&) = delete;
-  AccountManager &operator=(AccountManager &&) = delete;
-  ~AccountManager() final;
-
-  void set_default_message_ttl(int32 message_ttl, Promise<Unit> &&promise);
-
-  void get_default_message_ttl(Promise<int32> &&promise);
-
-  void set_account_ttl(int32 account_ttl, Promise<Unit> &&promise);
-
-  void get_account_ttl(Promise<int32> &&promise);
-
-  void confirm_qr_code_authentication(const string &link, Promise<td_api::object_ptr<td_api::session>> &&promise);
-
-  void get_active_sessions(Promise<td_api::object_ptr<td_api::sessions>> &&promise);
-
-  void terminate_session(int64 session_id, Promise<Unit> &&promise);
-
-  void terminate_all_other_sessions(Promise<Unit> &&promise);
-
-  void confirm_session(int64 session_id, Promise<Unit> &&promise);
-
-  void toggle_session_can_accept_calls(int64 session_id, bool can_accept_calls, Promise<Unit> &&promise);
-
-  void toggle_session_can_accept_secret_chats(int64 session_id, bool can_accept_secret_chats, Promise<Unit> &&promise);
-
-  void set_inactive_session_ttl_days(int32 authorization_ttl_days, Promise<Unit> &&promise);
-
-  void get_connected_websites(Promise<td_api::object_ptr<td_api::connectedWebsites>> &&promise);
-
-  void disconnect_website(int64 website_id, Promise<Unit> &&promise);
-
-  void disconnect_all_websites(Promise<Unit> &&promise);
-
-  void get_user_link(Promise<td_api::object_ptr<td_api::userLink>> &&promise);
-
-  void import_contact_token(const string &token, Promise<td_api::object_ptr<td_api::user>> &&promise);
-
-  void invalidate_authentication_codes(vector<string> &&authentication_codes);
-
-  void update_unconfirmed_authorization_timeout(bool is_external);
-
-  void on_new_unconfirmed_authorization(int64 hash, int32 date, string &&device, string &&location);
-
-  bool on_confirm_authorization(int64 hash);
-
-  void on_binlog_events(vector<BinlogEvent> &&events);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  class UnconfirmedAuthorization;
-  class UnconfirmedAuthorizations;
-
-  class ChangeAuthorizationSettingsOnServerLogEvent;
-  class InvalidateSignInCodesOnServerLogEvent;
-  class ResetAuthorizationOnServerLogEvent;
-  class ResetAuthorizationsOnServerLogEvent;
-  class ResetWebAuthorizationOnServerLogEvent;
-  class ResetWebAuthorizationsOnServerLogEvent;
-  class SetAccountTtlOnServerLogEvent;
-  class SetAuthorizationTtlOnServerLogEvent;
-  class SetDefaultHistoryTtlOnServerLogEvent;
-
-  void start_up() final;
-
-  void timeout_expired() final;
-
-  void tear_down() final;
-
-  void get_user_link_impl(Promise<td_api::object_ptr<td_api::userLink>> &&promise);
-
-  static string get_unconfirmed_authorizations_key();
-
-  void save_unconfirmed_authorizations() const;
-
-  bool delete_expired_unconfirmed_authorizations();
-
-  td_api::object_ptr<td_api::updateUnconfirmedSession> get_update_unconfirmed_session() const;
-
-  void send_update_unconfirmed_session() const;
-
-  void change_authorization_settings_on_server(int64 hash, bool set_encrypted_requests_disabled,
-                                               bool encrypted_requests_disabled, bool set_call_requests_disabled,
-                                               bool call_requests_disabled, bool confirm, uint64 log_event_id,
-                                               Promise<Unit> &&promise);
-
-  void invalidate_sign_in_codes_on_server(vector<string> authentication_codes, uint64 log_event_id);
-
-  void reset_authorization_on_server(int64 hash, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void reset_authorizations_on_server(uint64 log_event_id, Promise<Unit> &&promise);
-
-  void reset_web_authorization_on_server(int64 hash, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void reset_web_authorizations_on_server(uint64 log_event_id, Promise<Unit> &&promise);
-
-  void set_account_ttl_on_server(int32 account_ttl, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void set_authorization_ttl_on_server(int32 authorization_ttl_days, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void set_default_history_ttl_on_server(int32 message_ttl, uint64 log_event_id, Promise<Unit> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  unique_ptr<UnconfirmedAuthorizations> unconfirmed_authorizations_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AffectedHistory.h b/third-party/td/td/td/telegram/AffectedHistory.h
deleted file mode 100644
index f303ede874..0000000000
--- a/third-party/td/td/td/telegram/AffectedHistory.h
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct AffectedHistory {
-  int32 pts_;
-  int32 pts_count_;
-  bool is_final_;
-
-  explicit AffectedHistory(tl_object_ptr<telegram_api::messages_affectedHistory> &&affected_history)
-      : pts_(affected_history->pts_)
-      , pts_count_(affected_history->pts_count_)
-      , is_final_(affected_history->offset_ <= 0) {
-  }
-
-  explicit AffectedHistory(tl_object_ptr<telegram_api::messages_affectedFoundMessages> &&affected_history)
-      : pts_(affected_history->pts_)
-      , pts_count_(affected_history->pts_count_)
-      , is_final_(affected_history->offset_ <= 0) {
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AffiliateType.cpp b/third-party/td/td/td/telegram/AffiliateType.cpp
deleted file mode 100644
index 61f390f97d..0000000000
--- a/third-party/td/td/td/telegram/AffiliateType.cpp
+++ /dev/null
@@ -1,76 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AffiliateType.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-namespace td {
-
-Result<AffiliateType> AffiliateType::get_affiliate_type(Td *td, const td_api::object_ptr<td_api::AffiliateType> &type) {
-  if (type == nullptr) {
-    return Status::Error(400, "Affiliate type must be non-empty");
-  }
-  switch (type->get_id()) {
-    case td_api::affiliateTypeCurrentUser::ID:
-      return AffiliateType(td->dialog_manager_->get_my_dialog_id());
-    case td_api::affiliateTypeBot::ID: {
-      UserId user_id(static_cast<const td_api::affiliateTypeBot *>(type.get())->user_id_);
-      TRY_RESULT(bot_data, td->user_manager_->get_bot_data(user_id));
-      if (!bot_data.can_be_edited) {
-        return Status::Error(400, "The bot isn't owned");
-      }
-      return AffiliateType(DialogId(user_id));
-    }
-    case td_api::affiliateTypeChannel::ID: {
-      DialogId dialog_id(static_cast<const td_api::affiliateTypeChannel *>(type.get())->chat_id_);
-      TRY_STATUS(td->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "get_affiliate_type"));
-      if (!td->dialog_manager_->is_broadcast_channel(dialog_id)) {
-        return Status::Error(400, "The chat must be a channel chat");
-      }
-      auto channel_id = dialog_id.get_channel_id();
-      auto status = td->chat_manager_->get_channel_permissions(channel_id);
-      if (!status.can_post_messages()) {
-        return Status::Error(400, "Not enough rights in the chat");
-      }
-      return AffiliateType(dialog_id);
-    }
-    default:
-      UNREACHABLE();
-      return Status::Error(500, "Unreachable");
-  }
-}
-
-telegram_api::object_ptr<telegram_api::InputPeer> AffiliateType::get_input_peer(Td *td) const {
-  return td->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-}
-
-td_api::object_ptr<td_api::AffiliateType> AffiliateType::get_affiliate_type_object(Td *td) const {
-  switch (dialog_id_.get_type()) {
-    case DialogType::User:
-      if (td->dialog_manager_->get_my_dialog_id() == dialog_id_) {
-        return td_api::make_object<td_api::affiliateTypeCurrentUser>();
-      }
-      return td_api::make_object<td_api::affiliateTypeBot>(
-          td->user_manager_->get_user_id_object(dialog_id_.get_user_id(), "affiliateTypeBot"));
-    case DialogType::Channel:
-      return td_api::make_object<td_api::affiliateTypeChannel>(
-          td->dialog_manager_->get_chat_id_object(dialog_id_, "affiliateTypeChannel"));
-    default:
-      UNREACHABLE();
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const AffiliateType &affiliate_type) {
-  return string_builder << "affiliate " << affiliate_type.get_dialog_id();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AffiliateType.h b/third-party/td/td/td/telegram/AffiliateType.h
deleted file mode 100644
index fd4e1f68c9..0000000000
--- a/third-party/td/td/td/telegram/AffiliateType.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class AffiliateType {
-  DialogId dialog_id_;
-
-  explicit AffiliateType(DialogId dialog_id) : dialog_id_(dialog_id) {
-  }
-
- public:
-  AffiliateType() = default;
-
-  static Result<AffiliateType> get_affiliate_type(Td *td, const td_api::object_ptr<td_api::AffiliateType> &type);
-
-  DialogId get_dialog_id() const {
-    return dialog_id_;
-  }
-
-  telegram_api::object_ptr<telegram_api::InputPeer> get_input_peer(Td *td) const;
-
-  td_api::object_ptr<td_api::AffiliateType> get_affiliate_type_object(Td *td) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const AffiliateType &affiliate_type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AlarmManager.cpp b/third-party/td/td/td/telegram/AlarmManager.cpp
deleted file mode 100644
index ab59f4fb2a..0000000000
--- a/third-party/td/td/td/telegram/AlarmManager.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AlarmManager.h"
-
-#include "td/telegram/Global.h"
-
-#include "td/utils/Status.h"
-
-namespace td {
-
-AlarmManager::AlarmManager(ActorShared<> parent) : parent_(std::move(parent)) {
-  alarm_timeout_.set_callback(on_alarm_timeout_callback);
-  alarm_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-void AlarmManager::tear_down() {
-  while (!pending_alarms_.empty()) {
-    auto it = pending_alarms_.begin();
-    auto alarm_id = it->first;
-    auto promise = std::move(it->second);
-    pending_alarms_.erase(it);
-    promise.set_error(G()->request_aborted_error());
-    alarm_timeout_.cancel_timeout(alarm_id);
-  }
-  parent_.reset();
-}
-
-void AlarmManager::on_alarm_timeout_callback(void *alarm_manager_ptr, int64 alarm_id) {
-  auto alarm_manager = static_cast<AlarmManager *>(alarm_manager_ptr);
-  auto alarm_manager_id = alarm_manager->actor_id(alarm_manager);
-  send_closure_later(alarm_manager_id, &AlarmManager::on_alarm_timeout, alarm_id);
-}
-
-void AlarmManager::on_alarm_timeout(int64 alarm_id) {
-  auto it = pending_alarms_.find(alarm_id);
-  if (it == pending_alarms_.end()) {
-    return;
-  }
-  auto promise = std::move(it->second);
-  pending_alarms_.erase(alarm_id);
-  promise.set_value(Unit());
-}
-
-void AlarmManager::set_alarm(double seconds, Promise<Unit> &&promise) {
-  if (seconds < 0 || seconds > 3e9) {
-    return promise.set_error(Status::Error(400, "Wrong parameter seconds specified"));
-  }
-
-  auto alarm_id = alarm_id_++;
-  pending_alarms_.emplace(alarm_id, std::move(promise));
-  alarm_timeout_.set_timeout_in(alarm_id, seconds);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AlarmManager.h b/third-party/td/td/td/telegram/AlarmManager.h
deleted file mode 100644
index 7fa9b37982..0000000000
--- a/third-party/td/td/td/telegram/AlarmManager.h
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class AlarmManager final : public Actor {
- public:
-  explicit AlarmManager(ActorShared<> parent);
-
-  void set_alarm(double seconds, Promise<Unit> &&promise);
-
- private:
-  void tear_down() final;
-
-  static void on_alarm_timeout_callback(void *alarm_manager_ptr, int64 alarm_id);
-
-  void on_alarm_timeout(int64 alarm_id);
-
-  ActorShared<> parent_;
-
-  int64 alarm_id_ = 1;
-  FlatHashMap<int64, Promise<Unit>> pending_alarms_;
-  MultiTimeout alarm_timeout_{"AlarmTimeout"};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AnimationsManager.cpp b/third-party/td/td/td/telegram/AnimationsManager.cpp
deleted file mode 100644
index 5cdaa6d45b..0000000000
--- a/third-party/td/td/td/telegram/AnimationsManager.cpp
+++ /dev/null
@@ -1,851 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AnimationsManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-
-namespace td {
-
-class GetSavedGifsQuery final : public Td::ResultHandler {
-  bool is_repair_ = false;
-
- public:
-  void send(bool is_repair, int64 hash) {
-    is_repair_ = is_repair;
-    send_query(G()->net_query_creator().create(telegram_api::messages_getSavedGifs(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSavedGifs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    td_->animations_manager_->on_get_saved_animations(is_repair_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for get saved animations: " << status;
-    }
-    td_->animations_manager_->on_get_saved_animations_failed(is_repair_, std::move(status));
-  }
-};
-
-class SaveGifQuery final : public Td::ResultHandler {
-  FileId file_id_;
-  string file_reference_;
-  bool unsave_ = false;
-
-  Promise<Unit> promise_;
-
- public:
-  explicit SaveGifQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(FileId file_id, tl_object_ptr<telegram_api::inputDocument> &&input_document, bool unsave) {
-    CHECK(input_document != nullptr);
-    CHECK(file_id.is_valid());
-    file_id_ = file_id;
-    file_reference_ = input_document->file_reference_.as_slice().str();
-    unsave_ = unsave;
-    send_query(G()->net_query_creator().create(telegram_api::messages_saveGif(std::move(input_document), unsave)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_saveGif>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for save GIF: " << result;
-    if (!result) {
-      td_->animations_manager_->reload_saved_animations(true);
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      VLOG(file_references) << "Receive " << status << " for " << file_id_;
-      td_->file_manager_->delete_file_reference(file_id_, file_reference_);
-      td_->file_reference_manager_->repair_file_reference(
-          file_id_, PromiseCreator::lambda([animation_id = file_id_, unsave = unsave_,
-                                            promise = std::move(promise_)](Result<Unit> result) mutable {
-            if (result.is_error()) {
-              return promise.set_error(Status::Error(400, "Failed to find the animation"));
-            }
-
-            send_closure(G()->animations_manager(), &AnimationsManager::send_save_gif_query, animation_id, unsave,
-                         std::move(promise));
-          }));
-      return;
-    }
-
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for save GIF: " << status;
-    }
-    td_->animations_manager_->reload_saved_animations(true);
-    promise_.set_error(std::move(status));
-  }
-};
-
-AnimationsManager::AnimationsManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  on_update_animation_search_emojis();
-  on_update_animation_search_provider();
-  on_update_saved_animations_limit();
-
-  next_saved_animations_load_time_ = Time::now();
-
-  G()->td_db()->get_binlog_pmc()->erase("saved_animations_limit");  // legacy
-}
-
-AnimationsManager::~AnimationsManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), animations_);
-}
-
-void AnimationsManager::tear_down() {
-  parent_.reset();
-}
-
-int32 AnimationsManager::get_animation_duration(FileId file_id) const {
-  const auto *animation = get_animation(file_id);
-  CHECK(animation != nullptr);
-  return animation->duration;
-}
-
-tl_object_ptr<td_api::animation> AnimationsManager::get_animation_object(FileId file_id) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto animation = get_animation(file_id);
-  CHECK(animation != nullptr);
-  auto thumbnail =
-      animation->animated_thumbnail.file_id.is_valid()
-          ? get_thumbnail_object(td_->file_manager_.get(), animation->animated_thumbnail, PhotoFormat::Mpeg4)
-          : get_thumbnail_object(td_->file_manager_.get(), animation->thumbnail, PhotoFormat::Jpeg);
-  return make_tl_object<td_api::animation>(animation->duration, animation->dimensions.width,
-                                           animation->dimensions.height, animation->file_name, animation->mime_type,
-                                           animation->has_stickers, get_minithumbnail_object(animation->minithumbnail),
-                                           std::move(thumbnail), td_->file_manager_->get_file_object(file_id));
-}
-
-FileId AnimationsManager::on_get_animation(unique_ptr<Animation> new_animation, bool replace) {
-  auto file_id = new_animation->file_id;
-  CHECK(file_id.is_valid());
-  auto &a = animations_[file_id];
-  LOG(INFO) << (a == nullptr ? "Add" : (replace ? "Replace" : "Ignore")) << " animation " << file_id << " of size "
-            << new_animation->dimensions;
-  if (a == nullptr) {
-    a = std::move(new_animation);
-  } else if (replace) {
-    CHECK(a->file_id == file_id);
-    if (a->mime_type != new_animation->mime_type || a->file_name != new_animation->file_name ||
-        a->dimensions != new_animation->dimensions || a->duration != new_animation->duration ||
-        a->minithumbnail != new_animation->minithumbnail || a->thumbnail != new_animation->thumbnail ||
-        a->animated_thumbnail != new_animation->animated_thumbnail) {
-      LOG(DEBUG) << "Animation " << file_id << " info has changed";
-      a->mime_type = std::move(new_animation->mime_type);
-      a->file_name = std::move(new_animation->file_name);
-      a->dimensions = new_animation->dimensions;
-      a->duration = new_animation->duration;
-      a->minithumbnail = std::move(new_animation->minithumbnail);
-      a->thumbnail = std::move(new_animation->thumbnail);
-      a->animated_thumbnail = std::move(new_animation->animated_thumbnail);
-    }
-    if (a->has_stickers != new_animation->has_stickers && new_animation->has_stickers) {
-      a->has_stickers = new_animation->has_stickers;
-    }
-    if (a->sticker_file_ids != new_animation->sticker_file_ids && !new_animation->sticker_file_ids.empty()) {
-      a->sticker_file_ids = std::move(new_animation->sticker_file_ids);
-    }
-  }
-
-  return file_id;
-}
-
-const AnimationsManager::Animation *AnimationsManager::get_animation(FileId file_id) const {
-  return animations_.get_pointer(file_id);
-}
-
-FileId AnimationsManager::get_animation_thumbnail_file_id(FileId file_id) const {
-  auto animation = get_animation(file_id);
-  CHECK(animation != nullptr);
-  return animation->thumbnail.file_id;
-}
-
-FileId AnimationsManager::get_animation_animated_thumbnail_file_id(FileId file_id) const {
-  auto animation = get_animation(file_id);
-  CHECK(animation != nullptr);
-  return animation->animated_thumbnail.file_id;
-}
-
-void AnimationsManager::delete_animation_thumbnail(FileId file_id) {
-  auto &animation = animations_[file_id];
-  CHECK(animation != nullptr);
-  animation->thumbnail = PhotoSize();
-  animation->animated_thumbnail = AnimationSize();
-}
-
-FileId AnimationsManager::dup_animation(FileId new_id, FileId old_id) {
-  LOG(INFO) << "Dup animation " << old_id << " to " << new_id;
-  const Animation *old_animation = get_animation(old_id);
-  CHECK(old_animation != nullptr);
-  auto &new_animation = animations_[new_id];
-  if (new_animation != nullptr) {
-    return new_id;
-  }
-  new_animation = make_unique<Animation>(*old_animation);
-  new_animation->file_id = new_id;
-  return new_id;
-}
-
-void AnimationsManager::merge_animations(FileId new_id, FileId old_id) {
-  CHECK(old_id.is_valid() && new_id.is_valid());
-  CHECK(new_id != old_id);
-
-  LOG(INFO) << "Merge animations " << new_id << " and " << old_id;
-  const Animation *old_ = get_animation(old_id);
-  CHECK(old_ != nullptr);
-
-  bool need_merge = true;
-  const auto *new_ = get_animation(new_id);
-  if (new_ == nullptr) {
-    dup_animation(new_id, old_id);
-  } else {
-    if (new_->file_name.size() == old_->file_name.size() + 4 && new_->file_name == old_->file_name + ".mp4") {
-      need_merge = false;
-    }
-  }
-  if (need_merge) {
-    LOG_STATUS(td_->file_manager_->merge(new_id, old_id));
-  }
-}
-
-void AnimationsManager::create_animation(FileId file_id, string minithumbnail, PhotoSize thumbnail,
-                                         AnimationSize animated_thumbnail, bool has_stickers,
-                                         vector<FileId> &&sticker_file_ids, string file_name, string mime_type,
-                                         int32 duration, Dimensions dimensions, bool replace) {
-  auto a = make_unique<Animation>();
-  a->file_id = file_id;
-  a->file_name = std::move(file_name);
-  a->mime_type = std::move(mime_type);
-  a->duration = max(duration, 0);
-  a->dimensions = dimensions;
-  if (!td_->auth_manager_->is_bot()) {
-    a->minithumbnail = std::move(minithumbnail);
-  }
-  a->thumbnail = std::move(thumbnail);
-  a->animated_thumbnail = std::move(animated_thumbnail);
-  a->has_stickers = has_stickers;
-  a->sticker_file_ids = std::move(sticker_file_ids);
-  on_get_animation(std::move(a), replace);
-}
-
-tl_object_ptr<telegram_api::InputMedia> AnimationsManager::get_input_media(
-    FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, bool has_spoiler) const {
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return nullptr;
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && !main_remote_location->is_web() && input_file == nullptr) {
-    return telegram_api::make_object<telegram_api::inputMediaDocument>(
-        0, has_spoiler, main_remote_location->as_input_document(), nullptr, 0, 0, string());
-  }
-  const auto *url = file_view.get_url();
-  if (url != nullptr) {
-    return telegram_api::make_object<telegram_api::inputMediaDocumentExternal>(0, has_spoiler, *url, 0, nullptr, 0);
-  }
-
-  if (input_file != nullptr) {
-    const Animation *animation = get_animation(file_id);
-    CHECK(animation != nullptr);
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    if (!animation->file_name.empty()) {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeFilename>(animation->file_name));
-    }
-    string mime_type = animation->mime_type;
-    if (mime_type == "video/mp4") {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeVideo>(
-          0, false, false, false, animation->duration, animation->dimensions.width, animation->dimensions.height, 0,
-          0.0, string()));
-    } else if (animation->dimensions.width != 0 && animation->dimensions.height != 0) {
-      if (!begins_with(mime_type, "image/")) {
-        mime_type = "image/gif";
-      }
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeImageSize>(
-          animation->dimensions.width, animation->dimensions.height));
-    }
-    int32 flags = 0;
-    vector<tl_object_ptr<telegram_api::InputDocument>> added_stickers;
-    if (animation->has_stickers) {
-      flags |= telegram_api::inputMediaUploadedDocument::STICKERS_MASK;
-      added_stickers = td_->file_manager_->get_input_documents(animation->sticker_file_ids);
-    }
-    if (input_thumbnail != nullptr) {
-      flags |= telegram_api::inputMediaUploadedDocument::THUMB_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-        flags, false, false, has_spoiler, std::move(input_file), std::move(input_thumbnail), mime_type,
-        std::move(attributes), std::move(added_stickers), nullptr, 0, 0);
-  } else {
-    CHECK(main_remote_location == nullptr);
-  }
-
-  return nullptr;
-}
-
-SecretInputMedia AnimationsManager::get_secret_input_media(
-    FileId animation_file_id, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-    const string &caption, BufferSlice thumbnail, int32 layer) const {
-  auto *animation = get_animation(animation_file_id);
-  CHECK(animation != nullptr);
-  auto file_view = td_->file_manager_->get_file_view(animation_file_id);
-  if (!file_view.is_encrypted_secret() || file_view.encryption_key().empty()) {
-    return SecretInputMedia{};
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr) {
-    input_file = main_remote_location->as_input_encrypted_file();
-  }
-  if (!input_file) {
-    return SecretInputMedia{};
-  }
-  if (animation->thumbnail.file_id.is_valid() && thumbnail.empty()) {
-    return SecretInputMedia{};
-  }
-  vector<secret_api::object_ptr<secret_api::DocumentAttribute>> attributes;
-  if (!animation->file_name.empty()) {
-    attributes.push_back(secret_api::make_object<secret_api::documentAttributeFilename>(animation->file_name));
-  }
-  if (animation->duration != 0 && animation->mime_type == "video/mp4") {
-    attributes.push_back(secret_api::make_object<secret_api::documentAttributeVideo>(
-        0, false, animation->duration, animation->dimensions.width, animation->dimensions.height));
-  }
-  if (animation->dimensions.width != 0 && animation->dimensions.height != 0) {
-    attributes.push_back(secret_api::make_object<secret_api::documentAttributeImageSize>(animation->dimensions.width,
-                                                                                         animation->dimensions.height));
-  }
-  attributes.push_back(secret_api::make_object<secret_api::documentAttributeAnimated>());
-
-  return {std::move(input_file),
-          std::move(thumbnail),
-          animation->thumbnail.dimensions,
-          animation->mime_type,
-          file_view,
-          std::move(attributes),
-          caption,
-          layer};
-}
-
-void AnimationsManager::on_update_animation_search_emojis() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto animation_search_emojis = td_->option_manager_->get_option_string("animation_search_emojis");
-  is_animation_search_emojis_inited_ = true;
-  if (animation_search_emojis_ == animation_search_emojis) {
-    return;
-  }
-  animation_search_emojis_ = std::move(animation_search_emojis);
-
-  try_send_update_animation_search_parameters();
-}
-
-void AnimationsManager::on_update_animation_search_provider() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  string animation_search_provider = td_->option_manager_->get_option_string("animation_search_provider");
-  is_animation_search_provider_inited_ = true;
-  if (animation_search_provider_ == animation_search_provider) {
-    return;
-  }
-  animation_search_provider_ = std::move(animation_search_provider);
-
-  try_send_update_animation_search_parameters();
-}
-
-void AnimationsManager::on_update_saved_animations_limit() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  auto saved_animations_limit =
-      narrow_cast<int32>(td_->option_manager_->get_option_integer("saved_animations_limit", 200));
-  if (saved_animations_limit != saved_animations_limit_) {
-    if (saved_animations_limit > 0) {
-      LOG(INFO) << "Update saved animations limit to " << saved_animations_limit;
-      saved_animations_limit_ = saved_animations_limit;
-      if (static_cast<int32>(saved_animation_ids_.size()) > saved_animations_limit_) {
-        saved_animation_ids_.resize(saved_animations_limit_);
-        send_update_saved_animations();
-      }
-    } else {
-      LOG(ERROR) << "Receive wrong saved animations limit = " << saved_animations_limit;
-    }
-  }
-}
-
-class AnimationsManager::AnimationListLogEvent {
- public:
-  vector<FileId> animation_ids;
-
-  AnimationListLogEvent() = default;
-
-  explicit AnimationListLogEvent(vector<FileId> animation_ids) : animation_ids(std::move(animation_ids)) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    AnimationsManager *animations_manager = storer.context()->td().get_actor_unsafe()->animations_manager_.get();
-    td::store(narrow_cast<int32>(animation_ids.size()), storer);
-    for (auto animation_id : animation_ids) {
-      animations_manager->store_animation(animation_id, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    AnimationsManager *animations_manager = parser.context()->td().get_actor_unsafe()->animations_manager_.get();
-    int32 size = parser.fetch_int();
-    animation_ids.resize(size);
-    for (auto &animation_id : animation_ids) {
-      animation_id = animations_manager->parse_animation(parser);
-    }
-  }
-};
-
-void AnimationsManager::reload_saved_animations(bool force) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  if (!td_->auth_manager_->is_bot() && !are_saved_animations_being_loaded_ &&
-      (next_saved_animations_load_time_ < Time::now() || force)) {
-    LOG_IF(INFO, force) << "Reload saved animations";
-    are_saved_animations_being_loaded_ = true;
-    td_->create_handler<GetSavedGifsQuery>()->send(false, get_saved_animations_hash("reload_saved_animations"));
-  }
-}
-
-void AnimationsManager::repair_saved_animations(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Bots have no saved animations"));
-  }
-
-  repair_saved_animations_queries_.push_back(std::move(promise));
-  if (repair_saved_animations_queries_.size() == 1u) {
-    td_->create_handler<GetSavedGifsQuery>()->send(true, 0);
-  }
-}
-
-vector<FileId> AnimationsManager::get_saved_animations(Promise<Unit> &&promise) {
-  if (!are_saved_animations_loaded_) {
-    load_saved_animations(std::move(promise));
-    return {};
-  }
-  reload_saved_animations(false);
-
-  promise.set_value(Unit());
-  return saved_animation_ids_;
-}
-
-void AnimationsManager::load_saved_animations(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    are_saved_animations_loaded_ = true;
-  }
-  if (are_saved_animations_loaded_) {
-    promise.set_value(Unit());
-    return;
-  }
-  load_saved_animations_queries_.push_back(std::move(promise));
-  if (load_saved_animations_queries_.size() == 1u) {
-    if (G()->use_sqlite_pmc()) {
-      LOG(INFO) << "Trying to load saved animations from database";
-      G()->td_db()->get_sqlite_pmc()->get("ans", PromiseCreator::lambda([](string value) {
-                                            send_closure(G()->animations_manager(),
-                                                         &AnimationsManager::on_load_saved_animations_from_database,
-                                                         std::move(value));
-                                          }));
-    } else {
-      LOG(INFO) << "Trying to load saved animations from server";
-      reload_saved_animations(true);
-    }
-  }
-}
-
-void AnimationsManager::on_load_saved_animations_from_database(const string &value) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Saved animations aren't found in database";
-    reload_saved_animations(true);
-    return;
-  }
-
-  LOG(INFO) << "Successfully loaded saved animations list of size " << value.size() << " from database";
-
-  AnimationListLogEvent log_event;
-  log_event_parse(log_event, value).ensure();
-
-  on_load_saved_animations_finished(std::move(log_event.animation_ids), true);
-}
-
-void AnimationsManager::on_load_saved_animations_finished(vector<FileId> &&saved_animation_ids, bool from_database) {
-  if (static_cast<int32>(saved_animation_ids.size()) > saved_animations_limit_) {
-    saved_animation_ids.resize(saved_animations_limit_);
-  }
-  saved_animation_ids_ = std::move(saved_animation_ids);
-  are_saved_animations_loaded_ = true;
-  send_update_saved_animations(from_database);
-  set_promises(load_saved_animations_queries_);
-}
-
-void AnimationsManager::on_get_saved_animations(
-    bool is_repair, tl_object_ptr<telegram_api::messages_SavedGifs> &&saved_animations_ptr) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!is_repair) {
-    are_saved_animations_being_loaded_ = false;
-    next_saved_animations_load_time_ = Time::now_cached() + Random::fast(30 * 60, 50 * 60);
-  }
-
-  CHECK(saved_animations_ptr != nullptr);
-  int32 constructor_id = saved_animations_ptr->get_id();
-  if (constructor_id == telegram_api::messages_savedGifsNotModified::ID) {
-    if (is_repair) {
-      return on_get_saved_animations_failed(true, Status::Error(500, "Failed to reload saved animations"));
-    }
-    LOG(INFO) << "Saved animations are not modified";
-    return;
-  }
-  CHECK(constructor_id == telegram_api::messages_savedGifs::ID);
-  auto saved_animations = move_tl_object_as<telegram_api::messages_savedGifs>(saved_animations_ptr);
-  LOG(INFO) << "Receive " << saved_animations->gifs_.size() << " saved animations from server";
-
-  vector<FileId> saved_animation_ids;
-  saved_animation_ids.reserve(saved_animations->gifs_.size());
-  for (auto &document_ptr : saved_animations->gifs_) {
-    int32 document_constructor_id = document_ptr->get_id();
-    if (document_constructor_id == telegram_api::documentEmpty::ID) {
-      LOG(ERROR) << "Empty saved animation document received";
-      continue;
-    }
-    CHECK(document_constructor_id == telegram_api::document::ID);
-    auto document = td_->documents_manager_->on_get_document(move_tl_object_as<telegram_api::document>(document_ptr),
-                                                             DialogId(), false);
-    if (document.type != Document::Type::Animation) {
-      LOG(ERROR) << "Receive " << document << " instead of animation as saved animation";
-      continue;
-    }
-    if (!is_repair) {
-      saved_animation_ids.push_back(document.file_id);
-    }
-  }
-
-  if (is_repair) {
-    set_promises(repair_saved_animations_queries_);
-  } else {
-    on_load_saved_animations_finished(std::move(saved_animation_ids));
-
-    LOG_IF(ERROR, get_saved_animations_hash("on_get_saved_animations") != saved_animations->hash_)
-        << "Saved animations hash mismatch: " << saved_animations->hash_ << " vs "
-        << get_saved_animations_hash("on_get_saved_animations 2");
-  }
-}
-
-void AnimationsManager::on_get_saved_animations_failed(bool is_repair, Status error) {
-  CHECK(error.is_error());
-  if (!is_repair) {
-    are_saved_animations_being_loaded_ = false;
-    next_saved_animations_load_time_ = Time::now_cached() + Random::fast(5, 10);
-  }
-  fail_promises(is_repair ? repair_saved_animations_queries_ : load_saved_animations_queries_, std::move(error));
-}
-
-int64 AnimationsManager::get_saved_animations_hash(const char *source) const {
-  vector<uint64> numbers;
-  numbers.reserve(saved_animation_ids_.size());
-  for (auto animation_id : saved_animation_ids_) {
-    auto animation = get_animation(animation_id);
-    CHECK(animation != nullptr);
-    auto file_view = td_->file_manager_->get_file_view(animation_id);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    if (!full_remote_location->is_document()) {
-      LOG(ERROR) << "Saved animation remote location is not a document: " << source << ' ' << *full_remote_location;
-      continue;
-    }
-    numbers.push_back(full_remote_location->get_id());
-  }
-  return get_vector_hash(numbers);
-}
-
-void AnimationsManager::add_saved_animation(const tl_object_ptr<td_api::InputFile> &input_file,
-                                            Promise<Unit> &&promise) {
-  if (!are_saved_animations_loaded_) {
-    load_saved_animations(std::move(promise));
-    return;
-  }
-
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(FileType::Animation, input_file, DialogId(), false, false));
-
-  add_saved_animation_impl(file_id, true, std::move(promise));
-}
-
-void AnimationsManager::send_save_gif_query(FileId animation_id, bool unsave, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  // TODO invokeAfter and log event
-  auto file_view = td_->file_manager_->get_file_view(animation_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  CHECK(full_remote_location != nullptr);
-  CHECK(full_remote_location->is_document());
-  CHECK(!full_remote_location->is_web());
-  td_->create_handler<SaveGifQuery>(std::move(promise))
-      ->send(animation_id, full_remote_location->as_input_document(), unsave);
-}
-
-void AnimationsManager::add_saved_animation_by_id(FileId animation_id) {
-  auto animation = get_animation(animation_id);
-  CHECK(animation != nullptr);
-  if (animation->has_stickers) {
-    return;
-  }
-
-  // TODO log event
-  add_saved_animation_impl(animation_id, false, Auto());
-}
-
-void AnimationsManager::add_saved_animation_impl(FileId animation_id, bool add_on_server, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  auto file_view = td_->file_manager_->get_file_view(animation_id);
-  if (file_view.empty()) {
-    return promise.set_error(Status::Error(400, "Animation file not found"));
-  }
-
-  LOG(INFO) << "Add saved animation " << animation_id << " with main file " << file_view.get_main_file_id();
-  if (!are_saved_animations_loaded_) {
-    load_saved_animations(
-        PromiseCreator::lambda([animation_id, add_on_server, promise = std::move(promise)](Result<> result) mutable {
-          if (result.is_ok()) {
-            send_closure(G()->animations_manager(), &AnimationsManager::add_saved_animation_impl, animation_id,
-                         add_on_server, std::move(promise));
-          } else {
-            promise.set_error(result.move_as_error());
-          }
-        }));
-    return;
-  }
-
-  auto is_equal = [animation_id](FileId file_id) {
-    return file_id == animation_id ||
-           (file_id.get_remote() == animation_id.get_remote() && animation_id.get_remote() != 0);
-  };
-
-  if (!saved_animation_ids_.empty() && is_equal(saved_animation_ids_[0])) {
-    // fast path
-    if (saved_animation_ids_[0].get_remote() == 0 && animation_id.get_remote() != 0) {
-      saved_animation_ids_[0] = animation_id;
-      save_saved_animations_to_database();
-    }
-
-    return promise.set_value(Unit());
-  }
-
-  auto animation = get_animation(animation_id);
-  if (animation == nullptr) {
-    return promise.set_error(Status::Error(400, "Animation not found"));
-  }
-  if (animation->mime_type != "video/mp4") {
-    return promise.set_error(Status::Error(400, "Only MPEG4 animations can be saved"));
-  }
-
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr) {
-    return promise.set_error(Status::Error(400, "Can save only sent animations"));
-  }
-  if (full_remote_location->is_web()) {
-    return promise.set_error(Status::Error(400, "Can't save web animations"));
-  }
-  if (!full_remote_location->is_document()) {
-    return promise.set_error(Status::Error(400, "Can't save encrypted animations"));
-  }
-
-  add_to_top_if(saved_animation_ids_, static_cast<size_t>(saved_animations_limit_), animation_id, is_equal);
-
-  CHECK(is_equal(saved_animation_ids_[0]));
-  if (saved_animation_ids_[0].get_remote() == 0 && animation_id.get_remote() != 0) {
-    saved_animation_ids_[0] = animation_id;
-  }
-
-  send_update_saved_animations();
-  if (add_on_server) {
-    send_save_gif_query(animation_id, false, std::move(promise));
-  }
-}
-
-void AnimationsManager::remove_saved_animation(const tl_object_ptr<td_api::InputFile> &input_file,
-                                               Promise<Unit> &&promise) {
-  if (!are_saved_animations_loaded_) {
-    load_saved_animations(std::move(promise));
-    return;
-  }
-
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(FileType::Animation, input_file, DialogId(), false, false));
-
-  auto is_equal = [animation_id = file_id](FileId file_id) {
-    return file_id == animation_id ||
-           (file_id.get_remote() == animation_id.get_remote() && animation_id.get_remote() != 0);
-  };
-  if (!td::remove_if(saved_animation_ids_, is_equal)) {
-    return promise.set_value(Unit());
-  }
-
-  auto animation = get_animation(file_id);
-  if (animation == nullptr) {
-    return promise.set_error(Status::Error(400, "Animation not found"));
-  }
-
-  send_save_gif_query(file_id, true, std::move(promise));
-
-  send_update_saved_animations();
-}
-
-void AnimationsManager::try_send_update_animation_search_parameters() const {
-  auto update_animation_search_parameters = get_update_animation_search_parameters_object();
-  if (update_animation_search_parameters != nullptr) {
-    send_closure(G()->td(), &Td::send_update, std::move(update_animation_search_parameters));
-  }
-}
-
-td_api::object_ptr<td_api::updateAnimationSearchParameters>
-AnimationsManager::get_update_animation_search_parameters_object() const {
-  if (!is_animation_search_emojis_inited_ || !is_animation_search_provider_inited_) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::updateAnimationSearchParameters>(animation_search_provider_,
-                                                                      full_split(animation_search_emojis_, ','));
-}
-
-td_api::object_ptr<td_api::updateSavedAnimations> AnimationsManager::get_update_saved_animations_object() const {
-  return td_api::make_object<td_api::updateSavedAnimations>(
-      td_->file_manager_->get_file_ids_object(saved_animation_ids_));
-}
-
-void AnimationsManager::send_update_saved_animations(bool from_database) {
-  if (are_saved_animations_loaded_) {
-    vector<FileId> new_saved_animation_file_ids = saved_animation_ids_;
-    for (auto &animation_id : saved_animation_ids_) {
-      auto animation = get_animation(animation_id);
-      CHECK(animation != nullptr);
-      if (animation->thumbnail.file_id.is_valid()) {
-        new_saved_animation_file_ids.push_back(animation->thumbnail.file_id);
-      }
-      if (animation->animated_thumbnail.file_id.is_valid()) {
-        new_saved_animation_file_ids.push_back(animation->animated_thumbnail.file_id);
-      }
-    }
-    std::sort(new_saved_animation_file_ids.begin(), new_saved_animation_file_ids.end());
-    if (new_saved_animation_file_ids != saved_animation_file_ids_) {
-      td_->file_manager_->change_files_source(get_saved_animations_file_source_id(), saved_animation_file_ids_,
-                                              new_saved_animation_file_ids, "send_update_saved_animations");
-      saved_animation_file_ids_ = std::move(new_saved_animation_file_ids);
-    }
-
-    send_closure(G()->td(), &Td::send_update, get_update_saved_animations_object());
-
-    if (!from_database) {
-      save_saved_animations_to_database();
-    }
-  }
-}
-
-void AnimationsManager::save_saved_animations_to_database() {
-  if (G()->use_sqlite_pmc()) {
-    LOG(INFO) << "Save saved animations to database";
-    AnimationListLogEvent log_event(saved_animation_ids_);
-    G()->td_db()->get_sqlite_pmc()->set("ans", log_event_store(log_event).as_slice().str(), Auto());
-  }
-}
-
-FileSourceId AnimationsManager::get_saved_animations_file_source_id() {
-  if (!saved_animations_file_source_id_.is_valid()) {
-    saved_animations_file_source_id_ = td_->file_reference_manager_->create_saved_animations_file_source();
-  }
-  return saved_animations_file_source_id_;
-}
-
-string AnimationsManager::get_animation_search_text(FileId file_id) const {
-  auto animation = get_animation(file_id);
-  CHECK(animation != nullptr);
-  return animation->file_name;
-}
-
-void AnimationsManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (are_saved_animations_loaded_) {
-    updates.push_back(get_update_saved_animations_object());
-  }
-  auto update_animation_search_parameters = get_update_animation_search_parameters_object();
-  if (update_animation_search_parameters != nullptr) {
-    updates.push_back(std::move(update_animation_search_parameters));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AnimationsManager.h b/third-party/td/td/td/telegram/AnimationsManager.h
deleted file mode 100644
index 62847a0c6c..0000000000
--- a/third-party/td/td/td/telegram/AnimationsManager.h
+++ /dev/null
@@ -1,166 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-namespace td {
-
-class Td;
-
-class AnimationsManager final : public Actor {
- public:
-  AnimationsManager(Td *td, ActorShared<> parent);
-  AnimationsManager(const AnimationsManager &) = delete;
-  AnimationsManager &operator=(const AnimationsManager &) = delete;
-  AnimationsManager(AnimationsManager &&) = delete;
-  AnimationsManager &operator=(AnimationsManager &&) = delete;
-  ~AnimationsManager() final;
-
-  int32 get_animation_duration(FileId file_id) const;
-
-  tl_object_ptr<td_api::animation> get_animation_object(FileId file_id) const;
-
-  void create_animation(FileId file_id, string minithumbnail, PhotoSize thumbnail, AnimationSize animated_thumbnail,
-                        bool has_stickers, vector<FileId> &&sticker_file_ids, string file_name, string mime_type,
-                        int32 duration, Dimensions dimensions, bool replace);
-
-  tl_object_ptr<telegram_api::InputMedia> get_input_media(
-      FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, bool has_spoiler) const;
-
-  SecretInputMedia get_secret_input_media(FileId animation_file_id,
-                                          telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                          const string &caption, BufferSlice thumbnail, int32 layer) const;
-
-  FileId get_animation_thumbnail_file_id(FileId file_id) const;
-
-  FileId get_animation_animated_thumbnail_file_id(FileId file_id) const;
-
-  void delete_animation_thumbnail(FileId file_id);
-
-  FileId dup_animation(FileId new_id, FileId old_id);
-
-  void merge_animations(FileId new_id, FileId old_id);
-
-  void on_update_animation_search_emojis();
-
-  void on_update_animation_search_provider();
-
-  void on_update_saved_animations_limit();
-
-  void reload_saved_animations(bool force);
-
-  void repair_saved_animations(Promise<Unit> &&promise);
-
-  void on_get_saved_animations(bool is_repair, tl_object_ptr<telegram_api::messages_SavedGifs> &&saved_animations_ptr);
-
-  void on_get_saved_animations_failed(bool is_repair, Status error);
-
-  vector<FileId> get_saved_animations(Promise<Unit> &&promise);
-
-  FileSourceId get_saved_animations_file_source_id();
-
-  void send_save_gif_query(FileId animation_id, bool unsave, Promise<Unit> &&promise);
-
-  void add_saved_animation(const tl_object_ptr<td_api::InputFile> &input_file, Promise<Unit> &&promise);
-
-  void add_saved_animation_by_id(FileId animation_id);
-
-  void remove_saved_animation(const tl_object_ptr<td_api::InputFile> &input_file, Promise<Unit> &&promise);
-
-  template <class StorerT>
-  void store_animation(FileId file_id, StorerT &storer) const;
-
-  template <class ParserT>
-  FileId parse_animation(ParserT &parser);
-
-  string get_animation_search_text(FileId file_id) const;
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  class Animation {
-   public:
-    string file_name;
-    string mime_type;
-    int32 duration = 0;
-    Dimensions dimensions;
-    string minithumbnail;
-    PhotoSize thumbnail;
-    AnimationSize animated_thumbnail;
-
-    bool has_stickers = false;
-    vector<FileId> sticker_file_ids;
-
-    FileId file_id;
-  };
-
-  const Animation *get_animation(FileId file_id) const;
-
-  FileId on_get_animation(unique_ptr<Animation> new_animation, bool replace);
-
-  int64 get_saved_animations_hash(const char *source) const;
-
-  void add_saved_animation_impl(FileId animation_id, bool add_on_server, Promise<Unit> &&promise);
-
-  void load_saved_animations(Promise<Unit> &&promise);
-
-  void on_load_saved_animations_from_database(const string &value);
-
-  void on_load_saved_animations_finished(vector<FileId> &&saved_animation_ids, bool from_database = false);
-
-  void try_send_update_animation_search_parameters() const;
-
-  td_api::object_ptr<td_api::updateAnimationSearchParameters> get_update_animation_search_parameters_object() const;
-
-  td_api::object_ptr<td_api::updateSavedAnimations> get_update_saved_animations_object() const;
-
-  void send_update_saved_animations(bool from_database = false);
-
-  void save_saved_animations_to_database();
-
-  void tear_down() final;
-
-  class AnimationListLogEvent;
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  WaitFreeHashMap<FileId, unique_ptr<Animation>, FileIdHash> animations_;
-
-  int32 saved_animations_limit_ = 200;
-  vector<FileId> saved_animation_ids_;
-  vector<FileId> saved_animation_file_ids_;
-  double next_saved_animations_load_time_ = 0;
-  bool are_saved_animations_being_loaded_ = false;
-  bool are_saved_animations_loaded_ = false;
-  vector<Promise<Unit>> load_saved_animations_queries_;
-  vector<Promise<Unit>> repair_saved_animations_queries_;
-  FileSourceId saved_animations_file_source_id_;
-
-  string animation_search_emojis_;
-  string animation_search_provider_;
-  bool is_animation_search_emojis_inited_ = false;
-  bool is_animation_search_provider_inited_ = false;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AnimationsManager.hpp b/third-party/td/td/td/telegram/AnimationsManager.hpp
deleted file mode 100644
index 82290c3b87..0000000000
--- a/third-party/td/td/td/telegram/AnimationsManager.hpp
+++ /dev/null
@@ -1,77 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AnimationsManager.h"
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/PhotoSize.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void AnimationsManager::store_animation(FileId file_id, StorerT &storer) const {
-  const Animation *animation = get_animation(file_id);
-  CHECK(animation != nullptr);
-  bool has_animated_thumbnail = animation->animated_thumbnail.file_id.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(animation->has_stickers);
-  STORE_FLAG(has_animated_thumbnail);
-  END_STORE_FLAGS();
-  store(animation->duration, storer);
-  store(animation->dimensions, storer);
-  store(animation->file_name, storer);
-  store(animation->mime_type, storer);
-  store(animation->minithumbnail, storer);
-  store(animation->thumbnail, storer);
-  store(file_id, storer);
-  if (animation->has_stickers) {
-    store(animation->sticker_file_ids, storer);
-  }
-  if (has_animated_thumbnail) {
-    store(animation->animated_thumbnail, storer);
-  }
-}
-
-template <class ParserT>
-FileId AnimationsManager::parse_animation(ParserT &parser) {
-  auto animation = make_unique<Animation>();
-  bool has_animated_thumbnail = false;
-  if (parser.version() >= static_cast<int32>(Version::AddAnimationStickers)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(animation->has_stickers);
-    PARSE_FLAG(has_animated_thumbnail);
-    END_PARSE_FLAGS();
-  }
-  if (parser.version() >= static_cast<int32>(Version::AddDurationToAnimation)) {
-    parse(animation->duration, parser);
-  }
-  parse(animation->dimensions, parser);
-  parse(animation->file_name, parser);
-  parse(animation->mime_type, parser);
-  if (parser.version() >= static_cast<int32>(Version::SupportMinithumbnails)) {
-    parse(animation->minithumbnail, parser);
-  }
-  parse(animation->thumbnail, parser);
-  parse(animation->file_id, parser);
-  if (animation->has_stickers) {
-    parse(animation->sticker_file_ids, parser);
-  }
-  if (has_animated_thumbnail) {
-    parse(animation->animated_thumbnail, parser);
-  }
-  if (parser.get_error() != nullptr || !animation->file_id.is_valid()) {
-    return FileId();
-  }
-  return on_get_animation(std::move(animation), false);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Application.cpp b/third-party/td/td/td/telegram/Application.cpp
deleted file mode 100644
index c6368927d3..0000000000
--- a/third-party/td/td/td/telegram/Application.cpp
+++ /dev/null
@@ -1,144 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Application.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_parsers.h"
-
-namespace td {
-
-class GetInviteTextQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit GetInviteTextQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::help_getInviteText()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getInviteText>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    promise_.set_value(std::move(result->message_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SaveAppLogQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SaveAppLogQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::inputAppEvent> &&input_app_event) {
-    vector<telegram_api::object_ptr<telegram_api::inputAppEvent>> input_app_events;
-    input_app_events.push_back(std::move(input_app_event));
-    send_query(G()->net_query_creator().create_unauth(telegram_api::help_saveAppLog(std::move(input_app_events))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_saveAppLog>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(ERROR, !result) << "Receive false from help.saveAppLog";
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-void get_invite_text(Td *td, Promise<string> &&promise) {
-  td->create_handler<GetInviteTextQuery>(std::move(promise))->send();
-}
-
-class SaveAppLogLogEvent {
- public:
-  const telegram_api::inputAppEvent *input_app_event_in_ = nullptr;
-  telegram_api::object_ptr<telegram_api::inputAppEvent> input_app_event_out_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    input_app_event_in_->store(storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    auto buffer = parser.template fetch_string_raw<BufferSlice>(parser.get_left_len());
-    TlBufferParser buffer_parser{&buffer};
-    input_app_event_out_ = telegram_api::inputAppEvent::fetch(buffer_parser);
-    buffer_parser.fetch_end();
-    if (buffer_parser.get_error() != nullptr) {
-      return parser.set_error(buffer_parser.get_error());
-    }
-  }
-};
-
-static void save_app_log_impl(Td *td, telegram_api::object_ptr<telegram_api::inputAppEvent> input_app_event,
-                              uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    SaveAppLogLogEvent log_event;
-    log_event.input_app_event_in_ = input_app_event.get();
-    log_event_id =
-        binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SaveAppLog, get_log_event_storer(log_event));
-  }
-
-  td->create_handler<SaveAppLogQuery>(get_erase_log_event_promise(log_event_id, std::move(promise)))
-      ->send(std::move(input_app_event));
-}
-
-void save_app_log(Td *td, const string &type, DialogId dialog_id, tl_object_ptr<telegram_api::JSONValue> &&data,
-                  Promise<Unit> &&promise) {
-  CHECK(data != nullptr);
-  auto input_app_event = telegram_api::make_object<telegram_api::inputAppEvent>(G()->server_time(), type,
-                                                                                dialog_id.get(), std::move(data));
-  save_app_log_impl(td, std::move(input_app_event), 0, std::move(promise));
-}
-
-void on_save_app_log_binlog_event(Td *td, BinlogEvent &&event) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(event.id_ != 0);
-  CHECK(event.type_ == LogEvent::HandlerType::SaveAppLog);
-  SaveAppLogLogEvent log_event;
-  if (log_event_parse(log_event, event.get_data()).is_error()) {
-    LOG(ERROR) << "Failed to parse application log event";
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  save_app_log_impl(td, std::move(log_event.input_app_event_out_), event.id_, Promise<Unit>());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Application.h b/third-party/td/td/td/telegram/Application.h
deleted file mode 100644
index fcc496a34e..0000000000
--- a/third-party/td/td/td/telegram/Application.h
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-struct BinlogEvent;
-
-class Td;
-
-void get_invite_text(Td *td, Promise<string> &&promise);
-
-void save_app_log(Td *td, const string &type, DialogId dialog_id, tl_object_ptr<telegram_api::JSONValue> &&data,
-                  Promise<Unit> &&promise);
-
-void on_save_app_log_binlog_event(Td *td, BinlogEvent &&event);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AttachMenuManager.cpp b/third-party/td/td/td/telegram/AttachMenuManager.cpp
deleted file mode 100644
index 3247e1d701..0000000000
--- a/third-party/td/td/td/telegram/AttachMenuManager.cpp
+++ /dev/null
@@ -1,875 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AttachMenuManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class GetAttachMenuBotsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::AttachMenuBots>> promise_;
-
- public:
-  explicit GetAttachMenuBotsQuery(Promise<telegram_api::object_ptr<telegram_api::AttachMenuBots>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getAttachMenuBots(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getAttachMenuBots>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetAttachMenuBotsQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetAttachMenuBotQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::attachMenuBotsBot>> promise_;
-
- public:
-  explicit GetAttachMenuBotQuery(Promise<telegram_api::object_ptr<telegram_api::attachMenuBotsBot>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputUser> &&input_user) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getAttachMenuBot(std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getAttachMenuBot>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetAttachMenuBotQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleBotInAttachMenuQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleBotInAttachMenuQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputUser> &&input_user, bool is_added, bool allow_write_access) {
-    int32 flags = 0;
-    if (is_added && allow_write_access) {
-      flags |= telegram_api::messages_toggleBotInAttachMenu::WRITE_ALLOWED_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_toggleBotInAttachMenu(flags, false /*ignored*/, std::move(input_user), is_added)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_toggleBotInAttachMenu>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    if (!result) {
-      LOG(ERROR) << "Failed to add a bot to attachment menu";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->attach_menu_manager_->reload_attach_menu_bots(Promise<Unit>());
-    promise_.set_error(std::move(status));
-  }
-};
-
-bool operator==(const AttachMenuManager::AttachMenuBotColor &lhs, const AttachMenuManager::AttachMenuBotColor &rhs) {
-  return lhs.light_color_ == rhs.light_color_ && lhs.dark_color_ == rhs.dark_color_;
-}
-
-bool operator!=(const AttachMenuManager::AttachMenuBotColor &lhs, const AttachMenuManager::AttachMenuBotColor &rhs) {
-  return !(lhs == rhs);
-}
-
-template <class StorerT>
-void AttachMenuManager::AttachMenuBotColor::store(StorerT &storer) const {
-  td::store(light_color_, storer);
-  td::store(dark_color_, storer);
-}
-
-template <class ParserT>
-void AttachMenuManager::AttachMenuBotColor::parse(ParserT &parser) {
-  td::parse(light_color_, parser);
-  td::parse(dark_color_, parser);
-}
-
-bool operator==(const AttachMenuManager::AttachMenuBot &lhs, const AttachMenuManager::AttachMenuBot &rhs) {
-  return lhs.user_id_ == rhs.user_id_ && lhs.supports_self_dialog_ == rhs.supports_self_dialog_ &&
-         lhs.supports_user_dialogs_ == rhs.supports_user_dialogs_ &&
-         lhs.supports_bot_dialogs_ == rhs.supports_bot_dialogs_ &&
-         lhs.supports_group_dialogs_ == rhs.supports_group_dialogs_ &&
-         lhs.supports_broadcast_dialogs_ == rhs.supports_broadcast_dialogs_ &&
-         lhs.request_write_access_ == rhs.request_write_access_ &&
-         lhs.show_in_attach_menu_ == rhs.show_in_attach_menu_ && lhs.show_in_side_menu_ == rhs.show_in_side_menu_ &&
-         lhs.side_menu_disclaimer_needed_ == rhs.side_menu_disclaimer_needed_ && lhs.name_ == rhs.name_ &&
-         lhs.default_icon_file_id_ == rhs.default_icon_file_id_ &&
-         lhs.ios_static_icon_file_id_ == rhs.ios_static_icon_file_id_ &&
-         lhs.ios_animated_icon_file_id_ == rhs.ios_animated_icon_file_id_ &&
-         lhs.android_icon_file_id_ == rhs.android_icon_file_id_ && lhs.macos_icon_file_id_ == rhs.macos_icon_file_id_ &&
-         lhs.android_side_menu_icon_file_id_ == rhs.android_side_menu_icon_file_id_ &&
-         lhs.ios_side_menu_icon_file_id_ == rhs.ios_side_menu_icon_file_id_ &&
-         lhs.macos_side_menu_icon_file_id_ == rhs.macos_side_menu_icon_file_id_ && lhs.is_added_ == rhs.is_added_ &&
-         lhs.name_color_ == rhs.name_color_ && lhs.icon_color_ == rhs.icon_color_ &&
-         lhs.placeholder_file_id_ == rhs.placeholder_file_id_;
-}
-
-bool operator!=(const AttachMenuManager::AttachMenuBot &lhs, const AttachMenuManager::AttachMenuBot &rhs) {
-  return !(lhs == rhs);
-}
-
-template <class StorerT>
-void AttachMenuManager::AttachMenuBot::store(StorerT &storer) const {
-  bool has_ios_static_icon_file_id = ios_static_icon_file_id_.is_valid();
-  bool has_ios_animated_icon_file_id = ios_animated_icon_file_id_.is_valid();
-  bool has_android_icon_file_id = android_icon_file_id_.is_valid();
-  bool has_macos_icon_file_id = macos_icon_file_id_.is_valid();
-  bool has_name_color = name_color_ != AttachMenuBotColor();
-  bool has_icon_color = icon_color_ != AttachMenuBotColor();
-  bool has_support_flags = true;
-  bool has_placeholder_file_id = placeholder_file_id_.is_valid();
-  bool has_cache_version = cache_version_ != 0;
-  bool has_android_side_menu_icon_file_id = android_side_menu_icon_file_id_.is_valid();
-  bool has_ios_side_menu_icon_file_id = ios_side_menu_icon_file_id_.is_valid();
-  bool has_macos_side_menu_icon_file_id = macos_side_menu_icon_file_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_ios_static_icon_file_id);
-  STORE_FLAG(has_ios_animated_icon_file_id);
-  STORE_FLAG(has_android_icon_file_id);
-  STORE_FLAG(has_macos_icon_file_id);
-  STORE_FLAG(is_added_);
-  STORE_FLAG(has_name_color);
-  STORE_FLAG(has_icon_color);
-  STORE_FLAG(has_support_flags);
-  STORE_FLAG(supports_self_dialog_);
-  STORE_FLAG(supports_user_dialogs_);
-  STORE_FLAG(supports_bot_dialogs_);
-  STORE_FLAG(supports_group_dialogs_);
-  STORE_FLAG(supports_broadcast_dialogs_);
-  STORE_FLAG(false);
-  STORE_FLAG(has_placeholder_file_id);
-  STORE_FLAG(has_cache_version);
-  STORE_FLAG(request_write_access_);
-  STORE_FLAG(show_in_attach_menu_);
-  STORE_FLAG(show_in_side_menu_);
-  STORE_FLAG(side_menu_disclaimer_needed_);
-  STORE_FLAG(has_android_side_menu_icon_file_id);
-  STORE_FLAG(has_ios_side_menu_icon_file_id);
-  STORE_FLAG(has_macos_side_menu_icon_file_id);
-  END_STORE_FLAGS();
-  td::store(user_id_, storer);
-  td::store(name_, storer);
-  td::store(default_icon_file_id_, storer);
-  if (has_ios_static_icon_file_id) {
-    td::store(ios_static_icon_file_id_, storer);
-  }
-  if (has_ios_animated_icon_file_id) {
-    td::store(ios_animated_icon_file_id_, storer);
-  }
-  if (has_android_icon_file_id) {
-    td::store(android_icon_file_id_, storer);
-  }
-  if (has_macos_icon_file_id) {
-    td::store(macos_icon_file_id_, storer);
-  }
-  if (has_name_color) {
-    td::store(name_color_, storer);
-  }
-  if (has_icon_color) {
-    td::store(icon_color_, storer);
-  }
-  if (has_placeholder_file_id) {
-    td::store(placeholder_file_id_, storer);
-  }
-  if (has_cache_version) {
-    td::store(cache_version_, storer);
-  }
-  if (has_android_side_menu_icon_file_id) {
-    td::store(android_side_menu_icon_file_id_, storer);
-  }
-  if (has_ios_side_menu_icon_file_id) {
-    td::store(ios_side_menu_icon_file_id_, storer);
-  }
-  if (has_macos_side_menu_icon_file_id) {
-    td::store(macos_side_menu_icon_file_id_, storer);
-  }
-}
-
-template <class ParserT>
-void AttachMenuManager::AttachMenuBot::parse(ParserT &parser) {
-  bool has_ios_static_icon_file_id;
-  bool has_ios_animated_icon_file_id;
-  bool has_android_icon_file_id;
-  bool has_macos_icon_file_id;
-  bool has_name_color;
-  bool has_icon_color;
-  bool has_support_flags;
-  bool has_placeholder_file_id;
-  bool has_cache_version;
-  bool has_android_side_menu_icon_file_id;
-  bool has_ios_side_menu_icon_file_id;
-  bool has_macos_side_menu_icon_file_id;
-  bool legacy_supports_settings;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_ios_static_icon_file_id);
-  PARSE_FLAG(has_ios_animated_icon_file_id);
-  PARSE_FLAG(has_android_icon_file_id);
-  PARSE_FLAG(has_macos_icon_file_id);
-  PARSE_FLAG(is_added_);
-  PARSE_FLAG(has_name_color);
-  PARSE_FLAG(has_icon_color);
-  PARSE_FLAG(has_support_flags);
-  PARSE_FLAG(supports_self_dialog_);
-  PARSE_FLAG(supports_user_dialogs_);
-  PARSE_FLAG(supports_bot_dialogs_);
-  PARSE_FLAG(supports_group_dialogs_);
-  PARSE_FLAG(supports_broadcast_dialogs_);
-  PARSE_FLAG(legacy_supports_settings);
-  PARSE_FLAG(has_placeholder_file_id);
-  PARSE_FLAG(has_cache_version);
-  PARSE_FLAG(request_write_access_);
-  PARSE_FLAG(show_in_attach_menu_);
-  PARSE_FLAG(show_in_side_menu_);
-  PARSE_FLAG(side_menu_disclaimer_needed_);
-  PARSE_FLAG(has_android_side_menu_icon_file_id);
-  PARSE_FLAG(has_ios_side_menu_icon_file_id);
-  PARSE_FLAG(has_macos_side_menu_icon_file_id);
-  END_PARSE_FLAGS();
-  td::parse(user_id_, parser);
-  td::parse(name_, parser);
-  td::parse(default_icon_file_id_, parser);
-  if (has_ios_static_icon_file_id) {
-    td::parse(ios_static_icon_file_id_, parser);
-  }
-  if (has_ios_animated_icon_file_id) {
-    td::parse(ios_animated_icon_file_id_, parser);
-  }
-  if (has_android_icon_file_id) {
-    td::parse(android_icon_file_id_, parser);
-  }
-  if (has_macos_icon_file_id) {
-    td::parse(macos_icon_file_id_, parser);
-  }
-  if (has_name_color) {
-    td::parse(name_color_, parser);
-  }
-  if (has_icon_color) {
-    td::parse(icon_color_, parser);
-  }
-  if (has_placeholder_file_id) {
-    td::parse(placeholder_file_id_, parser);
-  }
-  if (has_cache_version) {
-    td::parse(cache_version_, parser);
-  }
-  if (has_android_side_menu_icon_file_id) {
-    td::parse(android_side_menu_icon_file_id_, parser);
-  }
-  if (has_ios_side_menu_icon_file_id) {
-    td::parse(ios_side_menu_icon_file_id_, parser);
-  }
-  if (has_macos_side_menu_icon_file_id) {
-    td::parse(macos_side_menu_icon_file_id_, parser);
-  }
-
-  if (!has_support_flags) {
-    supports_self_dialog_ = true;
-    supports_user_dialogs_ = true;
-    supports_bot_dialogs_ = true;
-  }
-  if (is_added_ && !show_in_attach_menu_ && !show_in_side_menu_ && !has_android_side_menu_icon_file_id &&
-      !has_ios_side_menu_icon_file_id && !has_macos_side_menu_icon_file_id) {
-    show_in_attach_menu_ = true;
-  }
-}
-
-class AttachMenuManager::AttachMenuBotsLogEvent {
- public:
-  int64 hash_ = 0;
-  vector<AttachMenuBot> attach_menu_bots_;
-
-  AttachMenuBotsLogEvent() = default;
-
-  AttachMenuBotsLogEvent(int64 hash, vector<AttachMenuBot> attach_menu_bots)
-      : hash_(hash), attach_menu_bots_(std::move(attach_menu_bots)) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(hash_, storer);
-    td::store(attach_menu_bots_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(hash_, parser);
-    td::parse(attach_menu_bots_, parser);
-  }
-};
-
-AttachMenuManager::AttachMenuManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void AttachMenuManager::tear_down() {
-  parent_.reset();
-}
-
-void AttachMenuManager::start_up() {
-  init();
-}
-
-void AttachMenuManager::init() {
-  if (!is_active()) {
-    return;
-  }
-  if (is_inited_) {
-    return;
-  }
-  is_inited_ = true;
-
-  if (!G()->use_chat_info_database()) {
-    G()->td_db()->get_binlog_pmc()->erase(get_attach_menu_bots_database_key());
-  } else {
-    auto attach_menu_bots_string = G()->td_db()->get_binlog_pmc()->get(get_attach_menu_bots_database_key());
-
-    if (!attach_menu_bots_string.empty()) {
-      AttachMenuBotsLogEvent attach_menu_bots_log_event;
-      bool is_valid = true;
-      is_valid &= log_event_parse(attach_menu_bots_log_event, attach_menu_bots_string).is_ok();
-
-      Dependencies dependencies;
-      for (auto &attach_menu_bot : attach_menu_bots_log_event.attach_menu_bots_) {
-        if (!attach_menu_bot.user_id_.is_valid() || !attach_menu_bot.default_icon_file_id_.is_valid()) {
-          is_valid = false;
-        }
-        if (!is_valid) {
-          break;
-        }
-        dependencies.add(attach_menu_bot.user_id_);
-      }
-      if (is_valid && dependencies.resolve_force(td_, "AttachMenuBotsLogEvent")) {
-        bool is_cache_outdated = false;
-        for (auto &bot : attach_menu_bots_log_event.attach_menu_bots_) {
-          if (bot.cache_version_ != AttachMenuBot::CACHE_VERSION) {
-            is_cache_outdated = true;
-          }
-        }
-        hash_ = is_cache_outdated ? 0 : attach_menu_bots_log_event.hash_;
-        attach_menu_bots_ = std::move(attach_menu_bots_log_event.attach_menu_bots_);
-
-        for (auto attach_menu_bot : attach_menu_bots_) {
-          auto file_source_id = get_attach_menu_bot_file_source_id(attach_menu_bot.user_id_);
-          auto register_file_source = [&](FileId file_id) {
-            if (file_id.is_valid()) {
-              td_->file_manager_->add_file_source(file_id, file_source_id, "attach_menu_bot");
-            }
-          };
-          register_file_source(attach_menu_bot.default_icon_file_id_);
-          register_file_source(attach_menu_bot.ios_static_icon_file_id_);
-          register_file_source(attach_menu_bot.ios_animated_icon_file_id_);
-          register_file_source(attach_menu_bot.android_icon_file_id_);
-          register_file_source(attach_menu_bot.macos_icon_file_id_);
-          register_file_source(attach_menu_bot.placeholder_file_id_);
-          register_file_source(attach_menu_bot.android_side_menu_icon_file_id_);
-          register_file_source(attach_menu_bot.ios_side_menu_icon_file_id_);
-          register_file_source(attach_menu_bot.macos_side_menu_icon_file_id_);
-        }
-      } else {
-        LOG(ERROR) << "Ignore invalid attachment menu bots log event";
-      }
-    }
-  }
-
-  send_update_attach_menu_bots();
-  reload_attach_menu_bots(Promise<Unit>());
-}
-
-void AttachMenuManager::timeout_expired() {
-  if (!is_active()) {
-    return;
-  }
-
-  reload_attach_menu_bots(Promise<Unit>());
-}
-
-bool AttachMenuManager::is_active() const {
-  return !G()->close_flag() && td_->auth_manager_->is_authorized() && !td_->auth_manager_->is_bot();
-}
-
-Result<AttachMenuManager::AttachMenuBot> AttachMenuManager::get_attach_menu_bot(
-    tl_object_ptr<telegram_api::attachMenuBot> &&bot) {
-  UserId user_id(bot->bot_id_);
-  if (!td_->user_manager_->have_user(user_id)) {
-    return Status::Error(PSLICE() << "Have no information about " << user_id);
-  }
-
-  auto file_source_id = get_attach_menu_bot_file_source_id(user_id);
-
-  AttachMenuBot attach_menu_bot;
-  attach_menu_bot.is_added_ = !bot->inactive_;
-  attach_menu_bot.user_id_ = user_id;
-  attach_menu_bot.name_ = std::move(bot->short_name_);
-  for (auto &icon : bot->icons_) {
-    Slice name = icon->name_;
-    int32 document_id = icon->icon_->get_id();
-    if (document_id == telegram_api::documentEmpty::ID) {
-      return Status::Error(PSLICE() << "Have no icon for " << user_id << " with name " << name);
-    }
-    CHECK(document_id == telegram_api::document::ID);
-
-    if (name != "default_static" && name != "ios_static" && name != "ios_animated" && name != "android_animated" &&
-        name != "macos_animated" && name != "placeholder_static" && name != "ios_side_menu_static" &&
-        name != "android_side_menu_static" && name != "macos_side_menu_static") {
-      LOG(ERROR) << "Have icon for " << user_id << " with name " << name;
-      continue;
-    }
-
-    auto expected_document_type = ends_with(name, "_static") ? Document::Type::General : Document::Type::Sticker;
-    auto parsed_document = td_->documents_manager_->on_get_document(
-        move_tl_object_as<telegram_api::document>(icon->icon_), DialogId(), false);
-    if (parsed_document.type != expected_document_type) {
-      LOG(ERROR) << "Receive wrong attachment menu bot icon \"" << name << "\" for " << user_id;
-      continue;
-    }
-    bool expect_colors = false;
-    switch (name[5]) {
-      case 'l':
-        attach_menu_bot.default_icon_file_id_ = parsed_document.file_id;
-        break;
-      case 't':
-        attach_menu_bot.ios_static_icon_file_id_ = parsed_document.file_id;
-        break;
-      case 'n':
-        attach_menu_bot.ios_animated_icon_file_id_ = parsed_document.file_id;
-        break;
-      case 'i':
-        if (name[8] == 's') {
-          attach_menu_bot.android_side_menu_icon_file_id_ = parsed_document.file_id;
-        } else if (name[8] == '_') {
-          attach_menu_bot.ios_side_menu_icon_file_id_ = parsed_document.file_id;
-        } else {
-          attach_menu_bot.android_icon_file_id_ = parsed_document.file_id;
-          expect_colors = true;
-        }
-        break;
-      case '_':
-        if (name[6] == 's') {
-          attach_menu_bot.macos_side_menu_icon_file_id_ = parsed_document.file_id;
-        } else {
-          attach_menu_bot.macos_icon_file_id_ = parsed_document.file_id;
-        }
-        break;
-      case 'h':
-        attach_menu_bot.placeholder_file_id_ = parsed_document.file_id;
-        break;
-      default:
-        UNREACHABLE();
-    }
-    td_->file_manager_->add_file_source(parsed_document.file_id, file_source_id, "get_attach_menu_bot");
-    if (expect_colors) {
-      if (icon->colors_.empty()) {
-        LOG(ERROR) << "Have no colors for attachment menu bot icon for " << user_id;
-      } else {
-        for (auto &color : icon->colors_) {
-          if (color->name_ != "light_icon" && color->name_ != "light_text" && color->name_ != "dark_icon" &&
-              color->name_ != "dark_text") {
-            LOG(ERROR) << "Receive unexpected attachment menu color " << color->name_ << " for " << user_id;
-            continue;
-          }
-          auto alpha = (color->color_ >> 24) & 0xFF;
-          if (alpha != 0 && alpha != 0xFF) {
-            LOG(ERROR) << "Receive alpha in attachment menu color " << color->name_ << " for " << user_id;
-          }
-          auto c = color->color_ & 0xFFFFFF;
-          switch (color->name_[6]) {
-            case 'i':
-              attach_menu_bot.icon_color_.light_color_ = c;
-              break;
-            case 't':
-              attach_menu_bot.name_color_.light_color_ = c;
-              break;
-            case 'c':
-              attach_menu_bot.icon_color_.dark_color_ = c;
-              break;
-            case 'e':
-              attach_menu_bot.name_color_.dark_color_ = c;
-              break;
-            default:
-              UNREACHABLE();
-          }
-        }
-        if (attach_menu_bot.icon_color_.light_color_ == -1 || attach_menu_bot.icon_color_.dark_color_ == -1) {
-          LOG(ERROR) << "Receive wrong icon_color for " << user_id;
-          attach_menu_bot.icon_color_ = AttachMenuBotColor();
-        }
-        if (attach_menu_bot.name_color_.light_color_ == -1 || attach_menu_bot.name_color_.dark_color_ == -1) {
-          LOG(ERROR) << "Receive wrong name_color for " << user_id;
-          attach_menu_bot.name_color_ = AttachMenuBotColor();
-        }
-      }
-    } else {
-      if (!icon->colors_.empty()) {
-        LOG(ERROR) << "Have unexpected colors for attachment menu bot icon for " << user_id << " with name " << name;
-      }
-    }
-  }
-  for (auto &peer_type : bot->peer_types_) {
-    switch (peer_type->get_id()) {
-      case telegram_api::attachMenuPeerTypeSameBotPM::ID:
-        attach_menu_bot.supports_self_dialog_ = true;
-        break;
-      case telegram_api::attachMenuPeerTypeBotPM::ID:
-        attach_menu_bot.supports_bot_dialogs_ = true;
-        break;
-      case telegram_api::attachMenuPeerTypePM::ID:
-        attach_menu_bot.supports_user_dialogs_ = true;
-        break;
-      case telegram_api::attachMenuPeerTypeChat::ID:
-        attach_menu_bot.supports_group_dialogs_ = true;
-        break;
-      case telegram_api::attachMenuPeerTypeBroadcast::ID:
-        attach_menu_bot.supports_broadcast_dialogs_ = true;
-        break;
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-  attach_menu_bot.request_write_access_ = bot->request_write_access_;
-  attach_menu_bot.show_in_attach_menu_ = bot->show_in_attach_menu_;
-  attach_menu_bot.show_in_side_menu_ = bot->show_in_side_menu_;
-  attach_menu_bot.side_menu_disclaimer_needed_ = bot->side_menu_disclaimer_needed_;
-  if (!attach_menu_bot.default_icon_file_id_.is_valid()) {
-    return Status::Error(PSLICE() << "Have no default icon for " << user_id);
-  }
-  attach_menu_bot.cache_version_ = AttachMenuBot::CACHE_VERSION;
-
-  return std::move(attach_menu_bot);
-}
-
-void AttachMenuManager::reload_attach_menu_bots(Promise<Unit> &&promise) {
-  if (!is_active()) {
-    return promise.set_error(Status::Error(400, "Can't reload attachment menu bots"));
-  }
-
-  reload_attach_menu_bots_queries_.push_back(std::move(promise));
-  if (reload_attach_menu_bots_queries_.size() == 1) {
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::AttachMenuBots>> &&result) {
-          send_closure(actor_id, &AttachMenuManager::on_reload_attach_menu_bots, std::move(result));
-        });
-    td_->create_handler<GetAttachMenuBotsQuery>(std::move(query_promise))->send(hash_);
-  }
-}
-
-void AttachMenuManager::on_reload_attach_menu_bots(
-    Result<telegram_api::object_ptr<telegram_api::AttachMenuBots>> &&result) {
-  if (!is_active()) {
-    return set_promises(reload_attach_menu_bots_queries_);
-  }
-  if (result.is_error()) {
-    set_timeout_in(Random::fast(60, 120));
-    return set_promises(reload_attach_menu_bots_queries_);
-  }
-
-  is_inited_ = true;
-
-  set_timeout_in(Random::fast(3600, 4800));
-
-  auto attach_menu_bots_ptr = result.move_as_ok();
-  auto constructor_id = attach_menu_bots_ptr->get_id();
-  if (constructor_id == telegram_api::attachMenuBotsNotModified::ID) {
-    return set_promises(reload_attach_menu_bots_queries_);
-  }
-  CHECK(constructor_id == telegram_api::attachMenuBots::ID);
-  auto attach_menu_bots = move_tl_object_as<telegram_api::attachMenuBots>(attach_menu_bots_ptr);
-
-  td_->user_manager_->on_get_users(std::move(attach_menu_bots->users_), "on_reload_attach_menu_bots");
-
-  auto new_hash = attach_menu_bots->hash_;
-  vector<AttachMenuBot> new_attach_menu_bots;
-
-  for (auto &bot : attach_menu_bots->bots_) {
-    auto r_attach_menu_bot = get_attach_menu_bot(std::move(bot));
-    if (r_attach_menu_bot.is_error()) {
-      LOG(ERROR) << r_attach_menu_bot.error().message();
-      new_hash = 0;
-      continue;
-    }
-
-    new_attach_menu_bots.push_back(r_attach_menu_bot.move_as_ok());
-  }
-
-  bool need_update = new_attach_menu_bots != attach_menu_bots_;
-  if (need_update || hash_ != new_hash) {
-    hash_ = new_hash;
-    attach_menu_bots_ = std::move(new_attach_menu_bots);
-
-    if (need_update) {
-      send_update_attach_menu_bots();
-    }
-
-    save_attach_menu_bots();
-  }
-  set_promises(reload_attach_menu_bots_queries_);
-}
-
-void AttachMenuManager::remove_bot_from_attach_menu(UserId user_id) {
-  for (auto it = attach_menu_bots_.begin(); it != attach_menu_bots_.end(); ++it) {
-    if (it->user_id_ == user_id) {
-      hash_ = 0;
-      attach_menu_bots_.erase(it);
-
-      send_update_attach_menu_bots();
-      save_attach_menu_bots();
-      return;
-    }
-  }
-}
-
-void AttachMenuManager::get_attach_menu_bot(UserId user_id,
-                                            Promise<td_api::object_ptr<td_api::attachmentMenuBot>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(user_id));
-  if (!bot_data.can_be_added_to_attach_menu) {
-    return promise.set_error(Status::Error(400, "The bot can't be added to attachment menu"));
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), user_id, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::attachMenuBotsBot>> &&result) mutable {
-        send_closure(actor_id, &AttachMenuManager::on_get_attach_menu_bot, user_id, std::move(result),
-                     std::move(promise));
-      });
-  td_->create_handler<GetAttachMenuBotQuery>(std::move(query_promise))->send(std::move(input_user));
-}
-
-void AttachMenuManager::reload_attach_menu_bot(UserId user_id, Promise<Unit> &&promise) {
-  if (!is_active()) {
-    return promise.set_error(Status::Error(400, "Can't reload attachment menu bot"));
-  }
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  auto wrapped_promise = PromiseCreator::lambda(
-      [promise = std::move(promise)](Result<td_api::object_ptr<td_api::attachmentMenuBot>> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(Unit());
-        }
-      });
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), user_id, promise = std::move(wrapped_promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::attachMenuBotsBot>> &&result) mutable {
-        send_closure(actor_id, &AttachMenuManager::on_get_attach_menu_bot, user_id, std::move(result),
-                     std::move(promise));
-      });
-  td_->create_handler<GetAttachMenuBotQuery>(std::move(query_promise))->send(std::move(input_user));
-}
-
-void AttachMenuManager::on_get_attach_menu_bot(
-    UserId user_id, Result<telegram_api::object_ptr<telegram_api::attachMenuBotsBot>> &&result,
-    Promise<td_api::object_ptr<td_api::attachmentMenuBot>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, bot, std::move(result));
-
-  td_->user_manager_->on_get_users(std::move(bot->users_), "on_get_attach_menu_bot");
-
-  auto r_attach_menu_bot = get_attach_menu_bot(std::move(bot->bot_));
-  if (r_attach_menu_bot.is_error()) {
-    LOG(ERROR) << r_attach_menu_bot.error().message();
-    return promise.set_error(Status::Error(500, "Receive invalid response"));
-  }
-  auto attach_menu_bot = r_attach_menu_bot.move_as_ok();
-  if (attach_menu_bot.user_id_ != user_id) {
-    return promise.set_error(Status::Error(500, "Receive wrong bot"));
-  }
-  if (attach_menu_bot.is_added_) {
-    bool is_found = false;
-    for (auto &old_bot : attach_menu_bots_) {
-      if (old_bot.user_id_ == user_id) {
-        is_found = true;
-        if (old_bot != attach_menu_bot) {
-          LOG(INFO) << "Update attachment menu bot " << user_id;
-
-          old_bot = attach_menu_bot;
-
-          send_update_attach_menu_bots();
-          save_attach_menu_bots();
-        }
-        break;
-      }
-    }
-    if (!is_found) {
-      LOG(INFO) << "Add missing attachment menu bot " << user_id;
-
-      hash_ = 0;
-      attach_menu_bots_.insert(attach_menu_bots_.begin(), attach_menu_bot);
-
-      send_update_attach_menu_bots();
-      save_attach_menu_bots();
-    }
-  }
-  promise.set_value(get_attachment_menu_bot_object(attach_menu_bot));
-}
-
-FileSourceId AttachMenuManager::get_attach_menu_bot_file_source_id(UserId user_id) {
-  if (!user_id.is_valid() || !is_active()) {
-    return FileSourceId();
-  }
-
-  auto &source_id = attach_menu_bot_file_source_ids_[user_id];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_attach_menu_bot_file_source(user_id);
-  }
-  VLOG(file_references) << "Return " << source_id << " for attach menu bot " << user_id;
-  return source_id;
-}
-
-void AttachMenuManager::toggle_bot_is_added_to_attach_menu(UserId user_id, bool is_added, bool allow_write_access,
-                                                           Promise<Unit> &&promise) {
-  CHECK(is_active());
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  if (is_added) {
-    TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(user_id));
-    if (!bot_data.can_be_added_to_attach_menu) {
-      return promise.set_error(Status::Error(400, "The bot can't be added to attachment menu"));
-    }
-  } else {
-    remove_bot_from_attach_menu(user_id);
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &AttachMenuManager::reload_attach_menu_bots, std::move(promise));
-        }
-      });
-
-  td_->create_handler<ToggleBotInAttachMenuQuery>(std::move(query_promise))
-      ->send(std::move(input_user), is_added, allow_write_access);
-}
-
-td_api::object_ptr<td_api::attachmentMenuBot> AttachMenuManager::get_attachment_menu_bot_object(
-    const AttachMenuBot &bot) const {
-  auto get_file = [td = td_](FileId file_id) -> td_api::object_ptr<td_api::file> {
-    if (!file_id.is_valid()) {
-      return nullptr;
-    }
-    return td->file_manager_->get_file_object(file_id);
-  };
-  auto get_attach_menu_bot_color_object =
-      [](const AttachMenuBotColor &color) -> td_api::object_ptr<td_api::attachmentMenuBotColor> {
-    if (color == AttachMenuBotColor()) {
-      return nullptr;
-    }
-    return td_api::make_object<td_api::attachmentMenuBotColor>(color.light_color_, color.dark_color_);
-  };
-
-  return td_api::make_object<td_api::attachmentMenuBot>(
-      td_->user_manager_->get_user_id_object(bot.user_id_, "get_attachment_menu_bot_object"), bot.supports_self_dialog_,
-      bot.supports_user_dialogs_, bot.supports_bot_dialogs_, bot.supports_group_dialogs_,
-      bot.supports_broadcast_dialogs_, bot.request_write_access_, bot.is_added_, bot.show_in_attach_menu_,
-      bot.show_in_side_menu_, bot.side_menu_disclaimer_needed_, bot.name_,
-      get_attach_menu_bot_color_object(bot.name_color_), get_file(bot.default_icon_file_id_),
-      get_file(bot.ios_static_icon_file_id_), get_file(bot.ios_animated_icon_file_id_),
-      get_file(bot.ios_side_menu_icon_file_id_), get_file(bot.android_icon_file_id_),
-      get_file(bot.android_side_menu_icon_file_id_), get_file(bot.macos_icon_file_id_),
-      get_file(bot.macos_side_menu_icon_file_id_), get_attach_menu_bot_color_object(bot.icon_color_),
-      get_file(bot.placeholder_file_id_));
-}
-
-td_api::object_ptr<td_api::updateAttachmentMenuBots> AttachMenuManager::get_update_attachment_menu_bots_object() const {
-  CHECK(is_active());
-  CHECK(is_inited_);
-  auto bots =
-      transform(attach_menu_bots_, [this](const AttachMenuBot &bot) { return get_attachment_menu_bot_object(bot); });
-  return td_api::make_object<td_api::updateAttachmentMenuBots>(std::move(bots));
-}
-
-void AttachMenuManager::send_update_attach_menu_bots() const {
-  send_closure(G()->td(), &Td::send_update, get_update_attachment_menu_bots_object());
-}
-
-string AttachMenuManager::get_attach_menu_bots_database_key() {
-  return "attach_bots";
-}
-
-void AttachMenuManager::save_attach_menu_bots() {
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-
-  if (attach_menu_bots_.empty()) {
-    G()->td_db()->get_binlog_pmc()->erase(get_attach_menu_bots_database_key());
-  } else {
-    AttachMenuBotsLogEvent attach_menu_bots_log_event{hash_, attach_menu_bots_};
-    G()->td_db()->get_binlog_pmc()->set(get_attach_menu_bots_database_key(),
-                                        log_event_store(attach_menu_bots_log_event).as_slice().str());
-  }
-}
-
-void AttachMenuManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (!is_active()) {
-    return;
-  }
-
-  updates.push_back(get_update_attachment_menu_bots_object());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AttachMenuManager.h b/third-party/td/td/td/telegram/AttachMenuManager.h
deleted file mode 100644
index 1ae9ee66a5..0000000000
--- a/third-party/td/td/td/telegram/AttachMenuManager.h
+++ /dev/null
@@ -1,140 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class AttachMenuManager final : public Actor {
- public:
-  AttachMenuManager(Td *td, ActorShared<> parent);
-
-  void init();
-
-  void reload_attach_menu_bots(Promise<Unit> &&promise);
-
-  void get_attach_menu_bot(UserId user_id, Promise<td_api::object_ptr<td_api::attachmentMenuBot>> &&promise);
-
-  void reload_attach_menu_bot(UserId user_id, Promise<Unit> &&promise);
-
-  FileSourceId get_attach_menu_bot_file_source_id(UserId user_id);
-
-  void toggle_bot_is_added_to_attach_menu(UserId user_id, bool is_added, bool allow_write_access,
-                                          Promise<Unit> &&promise);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
-  static string get_attach_menu_bots_database_key();
-
- private:
-  void start_up() final;
-
-  void timeout_expired() final;
-
-  void tear_down() final;
-
-  struct AttachMenuBotColor {
-    int32 light_color_ = -1;
-    int32 dark_color_ = -1;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  friend bool operator==(const AttachMenuBotColor &lhs, const AttachMenuBotColor &rhs);
-
-  friend bool operator!=(const AttachMenuBotColor &lhs, const AttachMenuBotColor &rhs);
-
-  struct AttachMenuBot {
-    bool is_added_ = false;
-    UserId user_id_;
-    bool supports_self_dialog_ = false;
-    bool supports_user_dialogs_ = false;
-    bool supports_bot_dialogs_ = false;
-    bool supports_group_dialogs_ = false;
-    bool supports_broadcast_dialogs_ = false;
-    bool request_write_access_ = false;
-    bool show_in_attach_menu_ = false;
-    bool show_in_side_menu_ = false;
-    bool side_menu_disclaimer_needed_ = false;
-    string name_;
-    AttachMenuBotColor name_color_;
-    FileId default_icon_file_id_;
-    FileId ios_static_icon_file_id_;
-    FileId ios_animated_icon_file_id_;
-    FileId android_icon_file_id_;
-    FileId macos_icon_file_id_;
-    FileId android_side_menu_icon_file_id_;
-    FileId ios_side_menu_icon_file_id_;
-    FileId macos_side_menu_icon_file_id_;
-    AttachMenuBotColor icon_color_;
-    FileId placeholder_file_id_;
-
-    static constexpr uint32 CACHE_VERSION = 3;
-    uint32 cache_version_ = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  class AttachMenuBotsLogEvent;
-
-  friend bool operator==(const AttachMenuBot &lhs, const AttachMenuBot &rhs);
-
-  friend bool operator!=(const AttachMenuBot &lhs, const AttachMenuBot &rhs);
-
-  bool is_active() const;
-
-  Result<AttachMenuBot> get_attach_menu_bot(tl_object_ptr<telegram_api::attachMenuBot> &&bot);
-
-  td_api::object_ptr<td_api::attachmentMenuBot> get_attachment_menu_bot_object(const AttachMenuBot &bot) const;
-
-  td_api::object_ptr<td_api::updateAttachmentMenuBots> get_update_attachment_menu_bots_object() const;
-
-  void remove_bot_from_attach_menu(UserId user_id);
-
-  void send_update_attach_menu_bots() const;
-
-  void save_attach_menu_bots();
-
-  void on_reload_attach_menu_bots(Result<telegram_api::object_ptr<telegram_api::AttachMenuBots>> &&result);
-
-  void on_get_attach_menu_bot(UserId user_id,
-                              Result<telegram_api::object_ptr<telegram_api::attachMenuBotsBot>> &&result,
-                              Promise<td_api::object_ptr<td_api::attachmentMenuBot>> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  bool is_inited_ = false;
-  int64 hash_ = 0;
-  vector<AttachMenuBot> attach_menu_bots_;
-  FlatHashMap<UserId, FileSourceId, UserIdHash> attach_menu_bot_file_source_ids_;
-  vector<Promise<Unit>> reload_attach_menu_bots_queries_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AudiosManager.cpp b/third-party/td/td/td/telegram/AudiosManager.cpp
deleted file mode 100644
index 6538dc3862..0000000000
--- a/third-party/td/td/td/telegram/AudiosManager.cpp
+++ /dev/null
@@ -1,295 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AudiosManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-AudiosManager::AudiosManager(Td *td) : td_(td) {
-}
-
-AudiosManager::~AudiosManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), audios_);
-}
-
-int32 AudiosManager::get_audio_duration(FileId file_id) const {
-  const auto *audio = get_audio(file_id);
-  if (audio == nullptr) {
-    return 0;
-  }
-  return audio->duration;
-}
-
-tl_object_ptr<td_api::audio> AudiosManager::get_audio_object(FileId file_id) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto audio = get_audio(file_id);
-  CHECK(audio != nullptr);
-
-  vector<td_api::object_ptr<td_api::thumbnail>> album_covers;
-  if (!td_->auth_manager_->is_bot()) {
-    auto add_album_cover = [&](bool is_small, int32 width, int32 height) {
-      auto r_file_id =
-          td_->file_manager_->get_audio_thumbnail_file_id(audio->title, audio->performer, is_small, DialogId());
-      if (r_file_id.is_ok()) {
-        album_covers.emplace_back(
-            td_api::make_object<td_api::thumbnail>(td_api::make_object<td_api::thumbnailFormatJpeg>(), width, height,
-                                                   td_->file_manager_->get_file_object(r_file_id.move_as_ok())));
-      }
-    };
-
-    add_album_cover(true, 100, 100);
-    add_album_cover(false, 600, 600);
-  }
-  return make_tl_object<td_api::audio>(
-      audio->duration, audio->title, audio->performer, audio->file_name, audio->mime_type,
-      get_minithumbnail_object(audio->minithumbnail),
-      get_thumbnail_object(td_->file_manager_.get(), audio->thumbnail, PhotoFormat::Jpeg), std::move(album_covers),
-      td_->file_manager_->get_file_object(file_id));
-}
-
-td_api::object_ptr<td_api::notificationSound> AudiosManager::get_notification_sound_object(FileId file_id) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto audio = get_audio(file_id);
-  CHECK(audio != nullptr);
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  CHECK(!file_view.empty());
-  CHECK(file_view.get_type() == FileType::Ringtone);
-  auto full_remote_location = file_view.get_full_remote_location();
-  CHECK(full_remote_location != nullptr);
-  auto document_id = full_remote_location->get_id();
-  auto title = audio->title;
-  if (title.empty() && !audio->file_name.empty()) {
-    title = PathView(audio->file_name).file_name_without_extension().str();
-  }
-  return td_api::make_object<td_api::notificationSound>(document_id, audio->duration, audio->date, title,
-                                                        audio->performer, td_->file_manager_->get_file_object(file_id));
-}
-
-FileId AudiosManager::on_get_audio(unique_ptr<Audio> new_audio, bool replace) {
-  auto file_id = new_audio->file_id;
-  CHECK(file_id.is_valid());
-  LOG(INFO) << "Receive audio " << file_id;
-  auto &a = audios_[file_id];
-  if (a == nullptr) {
-    a = std::move(new_audio);
-  } else if (replace) {
-    CHECK(a->file_id == new_audio->file_id);
-    if (a->mime_type != new_audio->mime_type || a->duration != new_audio->duration || a->title != new_audio->title ||
-        a->performer != new_audio->performer || a->file_name != new_audio->file_name || a->date != new_audio->date ||
-        a->minithumbnail != new_audio->minithumbnail || a->thumbnail != new_audio->thumbnail) {
-      LOG(DEBUG) << "Audio " << file_id << " info has changed";
-      a->mime_type = std::move(new_audio->mime_type);
-      a->duration = new_audio->duration;
-      a->title = std::move(new_audio->title);
-      a->performer = std::move(new_audio->performer);
-      a->file_name = std::move(new_audio->file_name);
-      a->date = new_audio->date;
-      a->minithumbnail = std::move(new_audio->minithumbnail);
-      a->thumbnail = std::move(new_audio->thumbnail);
-    }
-  }
-
-  return file_id;
-}
-
-const AudiosManager::Audio *AudiosManager::get_audio(FileId file_id) const {
-  return audios_.get_pointer(file_id);
-}
-
-FileId AudiosManager::dup_audio(FileId new_id, FileId old_id) {
-  const Audio *old_audio = get_audio(old_id);
-  CHECK(old_audio != nullptr);
-  auto &new_audio = audios_[new_id];
-  if (new_audio != nullptr) {
-    return new_id;
-  }
-  new_audio = make_unique<Audio>(*old_audio);
-  new_audio->file_id = new_id;
-  return new_id;
-}
-
-void AudiosManager::merge_audios(FileId new_id, FileId old_id) {
-  CHECK(old_id.is_valid() && new_id.is_valid());
-  CHECK(new_id != old_id);
-
-  LOG(INFO) << "Merge audios " << new_id << " and " << old_id;
-  const Audio *old_ = get_audio(old_id);
-  CHECK(old_ != nullptr);
-
-  const auto *new_ = get_audio(new_id);
-  if (new_ == nullptr) {
-    dup_audio(new_id, old_id);
-  } else {
-    if (!old_->mime_type.empty() && old_->mime_type != new_->mime_type) {
-      LOG(INFO) << "Audio has changed: mime_type = (" << old_->mime_type << ", " << new_->mime_type << ")";
-    }
-  }
-  LOG_STATUS(td_->file_manager_->merge(new_id, old_id));
-}
-
-string AudiosManager::get_audio_search_text(FileId file_id) const {
-  auto audio = get_audio(file_id);
-  CHECK(audio != nullptr);
-  return PSTRING() << audio->file_name << " " << audio->title << " " << audio->performer;
-}
-
-FileId AudiosManager::get_audio_thumbnail_file_id(FileId file_id) const {
-  auto audio = get_audio(file_id);
-  CHECK(audio != nullptr);
-  return audio->thumbnail.file_id;
-}
-
-void AudiosManager::append_audio_album_cover_file_ids(FileId file_id, vector<FileId> &file_ids) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  auto audio = get_audio(file_id);
-  CHECK(audio != nullptr);
-
-  auto append_album_cover = [&](bool is_small) {
-    auto r_file_id =
-        td_->file_manager_->get_audio_thumbnail_file_id(audio->title, audio->performer, is_small, DialogId());
-    if (r_file_id.is_ok()) {
-      file_ids.push_back(r_file_id.ok());
-    }
-  };
-
-  append_album_cover(true);
-  append_album_cover(false);
-}
-
-void AudiosManager::delete_audio_thumbnail(FileId file_id) {
-  auto &audio = audios_[file_id];
-  CHECK(audio != nullptr);
-  audio->thumbnail = PhotoSize();
-}
-
-void AudiosManager::create_audio(FileId file_id, string minithumbnail, PhotoSize thumbnail, string file_name,
-                                 string mime_type, int32 duration, string title, string performer, int32 date,
-                                 bool replace) {
-  auto a = make_unique<Audio>();
-  a->file_id = file_id;
-  a->file_name = std::move(file_name);
-  a->mime_type = std::move(mime_type);
-  a->duration = max(duration, 0);
-  a->title = std::move(title);
-  a->performer = std::move(performer);
-  a->date = date;
-  if (!td_->auth_manager_->is_bot()) {
-    a->minithumbnail = std::move(minithumbnail);
-  }
-  a->thumbnail = std::move(thumbnail);
-  on_get_audio(std::move(a), replace);
-}
-
-SecretInputMedia AudiosManager::get_secret_input_media(
-    FileId audio_file_id, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file, const string &caption,
-    BufferSlice thumbnail, int32 layer) const {
-  auto *audio = get_audio(audio_file_id);
-  CHECK(audio != nullptr);
-  auto file_view = td_->file_manager_->get_file_view(audio_file_id);
-  if (!file_view.is_encrypted_secret() || file_view.encryption_key().empty()) {
-    return SecretInputMedia{};
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr) {
-    input_file = main_remote_location->as_input_encrypted_file();
-  }
-  if (!input_file) {
-    return SecretInputMedia{};
-  }
-  if (audio->thumbnail.file_id.is_valid() && thumbnail.empty()) {
-    return SecretInputMedia{};
-  }
-  vector<secret_api::object_ptr<secret_api::DocumentAttribute>> attributes;
-  if (!audio->file_name.empty()) {
-    attributes.push_back(secret_api::make_object<secret_api::documentAttributeFilename>(audio->file_name));
-  }
-  attributes.push_back(secret_api::make_object<secret_api::documentAttributeAudio>(
-      secret_api::documentAttributeAudio::TITLE_MASK | secret_api::documentAttributeAudio::PERFORMER_MASK, false,
-      audio->duration, audio->title, audio->performer, BufferSlice()));
-
-  return {std::move(input_file),
-          std::move(thumbnail),
-          audio->thumbnail.dimensions,
-          audio->mime_type,
-          file_view,
-          std::move(attributes),
-          caption,
-          layer};
-}
-
-tl_object_ptr<telegram_api::InputMedia> AudiosManager::get_input_media(
-    FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) const {
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return nullptr;
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && !main_remote_location->is_web() && input_file == nullptr) {
-    return telegram_api::make_object<telegram_api::inputMediaDocument>(
-        0, false, main_remote_location->as_input_document(), nullptr, 0, 0, string());
-  }
-  const auto *url = file_view.get_url();
-  if (url != nullptr) {
-    return telegram_api::make_object<telegram_api::inputMediaDocumentExternal>(0, false, *url, 0, nullptr, 0);
-  }
-
-  if (input_file != nullptr) {
-    const Audio *audio = get_audio(file_id);
-    CHECK(audio != nullptr);
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeAudio>(
-        telegram_api::documentAttributeAudio::TITLE_MASK | telegram_api::documentAttributeAudio::PERFORMER_MASK, false,
-        audio->duration, audio->title, audio->performer, BufferSlice()));
-    if (!audio->file_name.empty()) {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeFilename>(audio->file_name));
-    }
-    string mime_type = audio->mime_type;
-    if (!begins_with(mime_type, "audio/")) {
-      mime_type = "audio/mpeg";
-    }
-    int32 flags = 0;
-    if (input_thumbnail != nullptr) {
-      flags |= telegram_api::inputMediaUploadedDocument::THUMB_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-        flags, false, false, false, std::move(input_file), std::move(input_thumbnail), mime_type, std::move(attributes),
-        vector<telegram_api::object_ptr<telegram_api::InputDocument>>(), nullptr, 0, 0);
-  } else {
-    CHECK(main_remote_location == nullptr);
-  }
-
-  return nullptr;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AudiosManager.h b/third-party/td/td/td/telegram/AudiosManager.h
deleted file mode 100644
index cf83089917..0000000000
--- a/third-party/td/td/td/telegram/AudiosManager.h
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-namespace td {
-
-class Td;
-
-class AudiosManager {
- public:
-  explicit AudiosManager(Td *td);
-  AudiosManager(const AudiosManager &) = delete;
-  AudiosManager &operator=(const AudiosManager &) = delete;
-  AudiosManager(AudiosManager &&) = delete;
-  AudiosManager &operator=(AudiosManager &&) = delete;
-  ~AudiosManager();
-
-  int32 get_audio_duration(FileId file_id) const;
-
-  tl_object_ptr<td_api::audio> get_audio_object(FileId file_id) const;
-
-  td_api::object_ptr<td_api::notificationSound> get_notification_sound_object(FileId file_id) const;
-
-  void create_audio(FileId file_id, string minithumbnail, PhotoSize thumbnail, string file_name, string mime_type,
-                    int32 duration, string title, string performer, int32 date, bool replace);
-
-  tl_object_ptr<telegram_api::InputMedia> get_input_media(
-      FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) const;
-
-  SecretInputMedia get_secret_input_media(FileId audio_file_id,
-                                          telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                          const string &caption, BufferSlice thumbnail, int32 layer) const;
-
-  FileId get_audio_thumbnail_file_id(FileId file_id) const;
-
-  void append_audio_album_cover_file_ids(FileId file_id, vector<FileId> &file_ids) const;
-
-  void delete_audio_thumbnail(FileId file_id);
-
-  FileId dup_audio(FileId new_id, FileId old_id);
-
-  void merge_audios(FileId new_id, FileId old_id);
-
-  template <class StorerT>
-  void store_audio(FileId file_id, StorerT &storer) const;
-
-  template <class ParserT>
-  FileId parse_audio(ParserT &parser);
-
-  string get_audio_search_text(FileId file_id) const;
-
- private:
-  class Audio {
-   public:
-    string file_name;
-    string mime_type;
-    int32 duration = 0;
-    int32 date = 0;
-    string title;
-    string performer;
-    string minithumbnail;
-    PhotoSize thumbnail;
-
-    FileId file_id;
-  };
-
-  const Audio *get_audio(FileId file_id) const;
-
-  FileId on_get_audio(unique_ptr<Audio> new_audio, bool replace);
-
-  Td *td_;
-  WaitFreeHashMap<FileId, unique_ptr<Audio>, FileIdHash> audios_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AudiosManager.hpp b/third-party/td/td/td/telegram/AudiosManager.hpp
deleted file mode 100644
index c86e8795a5..0000000000
--- a/third-party/td/td/td/telegram/AudiosManager.hpp
+++ /dev/null
@@ -1,132 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AudiosManager.h"
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/PhotoSize.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void AudiosManager::store_audio(FileId file_id, StorerT &storer) const {
-  const Audio *audio = get_audio(file_id);
-  CHECK(audio != nullptr);
-  bool has_file_name = !audio->file_name.empty();
-  bool has_mime_type = !audio->mime_type.empty();
-  bool has_duration = audio->duration != 0;
-  bool has_title = !audio->title.empty();
-  bool has_performer = !audio->performer.empty();
-  bool has_minithumbnail = !audio->minithumbnail.empty();
-  bool has_thumbnail = audio->thumbnail.file_id.is_valid();
-  bool has_date = audio->date != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_file_name);
-  STORE_FLAG(has_mime_type);
-  STORE_FLAG(has_duration);
-  STORE_FLAG(has_title);
-  STORE_FLAG(has_performer);
-  STORE_FLAG(has_minithumbnail);
-  STORE_FLAG(has_thumbnail);
-  STORE_FLAG(has_date);
-  END_STORE_FLAGS();
-  if (has_file_name) {
-    store(audio->file_name, storer);
-  }
-  if (has_mime_type) {
-    store(audio->mime_type, storer);
-  }
-  if (has_duration) {
-    store(audio->duration, storer);
-  }
-  if (has_title) {
-    store(audio->title, storer);
-  }
-  if (has_performer) {
-    store(audio->performer, storer);
-  }
-  if (has_minithumbnail) {
-    store(audio->minithumbnail, storer);
-  }
-  if (has_thumbnail) {
-    store(audio->thumbnail, storer);
-  }
-  if (has_date) {
-    store(audio->date, storer);
-  }
-  store(file_id, storer);
-}
-
-template <class ParserT>
-FileId AudiosManager::parse_audio(ParserT &parser) {
-  auto audio = make_unique<Audio>();
-  bool has_file_name;
-  bool has_mime_type;
-  bool has_duration;
-  bool has_title;
-  bool has_performer;
-  bool has_minithumbnail;
-  bool has_thumbnail;
-  bool has_date;
-  if (parser.version() >= static_cast<int32>(Version::AddAudioFlags)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_file_name);
-    PARSE_FLAG(has_mime_type);
-    PARSE_FLAG(has_duration);
-    PARSE_FLAG(has_title);
-    PARSE_FLAG(has_performer);
-    PARSE_FLAG(has_minithumbnail);
-    PARSE_FLAG(has_thumbnail);
-    PARSE_FLAG(has_date);
-    END_PARSE_FLAGS();
-  } else {
-    has_file_name = true;
-    has_mime_type = true;
-    has_duration = true;
-    has_title = true;
-    has_performer = true;
-    has_minithumbnail = parser.version() >= static_cast<int32>(Version::SupportMinithumbnails);
-    has_thumbnail = true;
-    has_date = false;
-  }
-  if (has_file_name) {
-    parse(audio->file_name, parser);
-  }
-  if (has_mime_type) {
-    parse(audio->mime_type, parser);
-  }
-  if (has_duration) {
-    parse(audio->duration, parser);
-  }
-  if (has_title) {
-    parse(audio->title, parser);
-  }
-  if (has_performer) {
-    parse(audio->performer, parser);
-  }
-  if (has_minithumbnail) {
-    parse(audio->minithumbnail, parser);
-  }
-  if (has_thumbnail) {
-    parse(audio->thumbnail, parser);
-  }
-  if (has_date) {
-    parse(audio->date, parser);
-  }
-  parse(audio->file_id, parser);
-  if (parser.get_error() != nullptr || !audio->file_id.is_valid()) {
-    return FileId();
-  }
-  return on_get_audio(std::move(audio), false);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AuthManager.cpp b/third-party/td/td/td/telegram/AuthManager.cpp
deleted file mode 100644
index 220670ac4a..0000000000
--- a/third-party/td/td/td/telegram/AuthManager.cpp
+++ /dev/null
@@ -1,1493 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AuthManager.h"
-
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/AuthManager.hpp"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/DialogFilterManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/NewPasswordState.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/PromoDataManager.h"
-#include "td/telegram/ReactionManager.h"
-#include "td/telegram/SendCodeHelper.hpp"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TermsOfService.hpp"
-#include "td/telegram/TermsOfServiceManager.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/TopDialogManager.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-struct AuthManager::DbState {
-  State state_;
-  int32 api_id_;
-  string api_hash_;
-  double expires_at_;
-
-  // WaitEmailAddress and WaitEmailCode
-  bool allow_apple_id_ = false;
-  bool allow_google_id_ = false;
-
-  // WaitEmailCode
-  string email_address_;
-  SentEmailCode email_code_info_;
-  int32 reset_available_period_ = -1;
-  int32 reset_pending_date_ = -1;
-
-  // WaitEmailAddress, WaitEmailCode, WaitCode and WaitRegistration
-  SendCodeHelper send_code_helper_;
-
-  // WaitQrCodeConfirmation
-  vector<UserId> other_user_ids_;
-  string login_token_;
-  double login_token_expires_at_ = 0;
-
-  // WaitPassword
-  WaitPasswordState wait_password_state_;
-
-  // WaitRegistration
-  TermsOfService terms_of_service_;
-
-  DbState() = default;
-
-  static DbState wait_email_address(int32 api_id, string api_hash, bool allow_apple_id, bool allow_google_id,
-                                    SendCodeHelper send_code_helper) {
-    DbState state(State::WaitEmailAddress, api_id, std::move(api_hash));
-    state.send_code_helper_ = std::move(send_code_helper);
-    state.allow_apple_id_ = allow_apple_id;
-    state.allow_google_id_ = allow_google_id;
-    return state;
-  }
-
-  static DbState wait_email_code(int32 api_id, string api_hash, bool allow_apple_id, bool allow_google_id,
-                                 string email_address, SentEmailCode email_code_info, int32 reset_available_period,
-                                 int32 reset_pending_date, SendCodeHelper send_code_helper) {
-    DbState state(State::WaitEmailCode, api_id, std::move(api_hash));
-    state.send_code_helper_ = std::move(send_code_helper);
-    state.allow_apple_id_ = allow_apple_id;
-    state.allow_google_id_ = allow_google_id;
-    state.email_address_ = std::move(email_address);
-    state.email_code_info_ = std::move(email_code_info);
-    state.reset_available_period_ = reset_available_period;
-    state.reset_pending_date_ = reset_pending_date;
-    return state;
-  }
-
-  static DbState wait_code(int32 api_id, string api_hash, SendCodeHelper send_code_helper) {
-    DbState state(State::WaitCode, api_id, std::move(api_hash));
-    state.send_code_helper_ = std::move(send_code_helper);
-    return state;
-  }
-
-  static DbState wait_qr_code_confirmation(int32 api_id, string api_hash, vector<UserId> other_user_ids,
-                                           string login_token, double login_token_expires_at) {
-    DbState state(State::WaitQrCodeConfirmation, api_id, std::move(api_hash));
-    state.other_user_ids_ = std::move(other_user_ids);
-    state.login_token_ = std::move(login_token);
-    state.login_token_expires_at_ = login_token_expires_at;
-    return state;
-  }
-
-  static DbState wait_password(int32 api_id, string api_hash, WaitPasswordState wait_password_state) {
-    DbState state(State::WaitPassword, api_id, std::move(api_hash));
-    state.wait_password_state_ = std::move(wait_password_state);
-    return state;
-  }
-
-  static DbState wait_registration(int32 api_id, string api_hash, SendCodeHelper send_code_helper,
-                                   TermsOfService terms_of_service) {
-    DbState state(State::WaitRegistration, api_id, std::move(api_hash));
-    state.send_code_helper_ = std::move(send_code_helper);
-    state.terms_of_service_ = std::move(terms_of_service);
-    return state;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  DbState(State state, int32 api_id, string &&api_hash)
-      : state_(state), api_id_(api_id), api_hash_(std::move(api_hash)) {
-    auto state_timeout = [state] {
-      switch (state) {
-        case State::WaitPassword:
-        case State::WaitRegistration:
-          return 86400;
-        case State::WaitEmailAddress:
-        case State::WaitEmailCode:
-        case State::WaitCode:
-        case State::WaitQrCodeConfirmation:
-          return 5 * 60;
-        default:
-          UNREACHABLE();
-          return 0;
-      }
-    }();
-    expires_at_ = Time::now() + state_timeout;
-  }
-};
-
-template <class StorerT>
-void AuthManager::DbState::store(StorerT &storer) const {
-  using td::store;
-  bool has_terms_of_service = !terms_of_service_.get_id().empty();
-  bool is_pbkdf2_supported = true;
-  bool is_srp_supported = true;
-  bool is_wait_registration_supported = true;
-  bool is_wait_registration_stores_phone_number = true;
-  bool is_wait_qr_code_confirmation_supported = true;
-  bool is_time_store_supported = true;
-  bool is_reset_email_address_supported = true;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_terms_of_service);
-  STORE_FLAG(is_pbkdf2_supported);
-  STORE_FLAG(is_srp_supported);
-  STORE_FLAG(is_wait_registration_supported);
-  STORE_FLAG(is_wait_registration_stores_phone_number);
-  STORE_FLAG(is_wait_qr_code_confirmation_supported);
-  STORE_FLAG(allow_apple_id_);
-  STORE_FLAG(allow_google_id_);
-  STORE_FLAG(is_time_store_supported);
-  STORE_FLAG(is_reset_email_address_supported);
-  END_STORE_FLAGS();
-  store(state_, storer);
-  store(api_id_, storer);
-  store(api_hash_, storer);
-  store_time(expires_at_, storer);
-
-  if (has_terms_of_service) {
-    store(terms_of_service_, storer);
-  }
-
-  if (state_ == State::WaitEmailAddress) {
-    store(send_code_helper_, storer);
-  } else if (state_ == State::WaitEmailCode) {
-    store(send_code_helper_, storer);
-    store(email_address_, storer);
-    store(email_code_info_, storer);
-    store(reset_available_period_, storer);
-    store(reset_pending_date_, storer);
-  } else if (state_ == State::WaitCode) {
-    store(send_code_helper_, storer);
-  } else if (state_ == State::WaitQrCodeConfirmation) {
-    store(other_user_ids_, storer);
-    store(login_token_, storer);
-    store_time(login_token_expires_at_, storer);
-  } else if (state_ == State::WaitPassword) {
-    store(wait_password_state_, storer);
-  } else if (state_ == State::WaitRegistration) {
-    store(send_code_helper_, storer);
-  } else {
-    UNREACHABLE();
-  }
-}
-
-template <class ParserT>
-void AuthManager::DbState::parse(ParserT &parser) {
-  using td::parse;
-  bool has_terms_of_service = false;
-  bool is_pbkdf2_supported = false;
-  bool is_srp_supported = false;
-  bool is_wait_registration_supported = false;
-  bool is_wait_registration_stores_phone_number = false;
-  bool is_wait_qr_code_confirmation_supported = false;
-  bool is_time_store_supported = false;
-  bool is_reset_email_address_supported = false;
-  if (parser.version() >= static_cast<int32>(Version::AddTermsOfService)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_terms_of_service);
-    PARSE_FLAG(is_pbkdf2_supported);
-    PARSE_FLAG(is_srp_supported);
-    PARSE_FLAG(is_wait_registration_supported);
-    PARSE_FLAG(is_wait_registration_stores_phone_number);
-    PARSE_FLAG(is_wait_qr_code_confirmation_supported);
-    PARSE_FLAG(allow_apple_id_);
-    PARSE_FLAG(allow_google_id_);
-    PARSE_FLAG(is_time_store_supported);
-    PARSE_FLAG(is_reset_email_address_supported);
-    END_PARSE_FLAGS();
-  }
-  if (!is_reset_email_address_supported) {
-    return parser.set_error("Have no reset email address support");
-  }
-  CHECK(is_pbkdf2_supported);
-  CHECK(is_srp_supported);
-  CHECK(is_wait_registration_supported);
-  CHECK(is_wait_registration_stores_phone_number);
-  CHECK(is_wait_qr_code_confirmation_supported);
-  CHECK(is_time_store_supported);
-
-  parse(state_, parser);
-  parse(api_id_, parser);
-  parse(api_hash_, parser);
-  parse_time(expires_at_, parser);
-
-  if (has_terms_of_service) {
-    parse(terms_of_service_, parser);
-  }
-
-  if (state_ == State::WaitEmailAddress) {
-    parse(send_code_helper_, parser);
-  } else if (state_ == State::WaitEmailCode) {
-    parse(send_code_helper_, parser);
-    parse(email_address_, parser);
-    parse(email_code_info_, parser);
-    parse(reset_available_period_, parser);
-    parse(reset_pending_date_, parser);
-  } else if (state_ == State::WaitCode) {
-    parse(send_code_helper_, parser);
-  } else if (state_ == State::WaitQrCodeConfirmation) {
-    parse(other_user_ids_, parser);
-    parse(login_token_, parser);
-    parse_time(login_token_expires_at_, parser);
-  } else if (state_ == State::WaitPassword) {
-    parse(wait_password_state_, parser);
-  } else if (state_ == State::WaitRegistration) {
-    parse(send_code_helper_, parser);
-  } else {
-    parser.set_error(PSTRING() << "Unexpected " << tag("state", static_cast<int32>(state_)));
-  }
-}
-
-AuthManager::AuthManager(int32 api_id, const string &api_hash, ActorShared<> parent)
-    : parent_(std::move(parent)), api_id_(api_id), api_hash_(api_hash) {
-  string auth_str = G()->td_db()->get_binlog_pmc()->get("auth");
-  if (auth_str == "ok") {
-    string is_bot_str = G()->td_db()->get_binlog_pmc()->get("auth_is_bot");
-    if (is_bot_str == "true") {
-      is_bot_ = true;
-    }
-    auto my_id = UserManager::load_my_id();
-    if (my_id.is_valid()) {
-      // just in case
-      LOG(INFO) << "Logged in as " << my_id;
-      td_->option_manager_->set_option_integer("my_id", my_id.get());
-      update_state(State::Ok);
-    } else {
-      LOG(ERROR) << "Restore unknown my_id";
-      UserManager::send_get_me_query(td_,
-                                     PromiseCreator::lambda([this](Result<Unit> result) { update_state(State::Ok); }));
-    }
-    G()->net_query_dispatcher().check_authorization_is_ok();
-  } else if (auth_str == "logout") {
-    LOG(WARNING) << "Continue to log out";
-    update_state(State::LoggingOut);
-  } else if (auth_str == "destroy") {
-    LOG(WARNING) << "Continue to destroy auth keys";
-    update_state(State::DestroyingKeys);
-  } else {
-    if (!load_state()) {
-      update_state(State::WaitPhoneNumber);
-    }
-  }
-}
-
-void AuthManager::start_up() {
-  if (state_ == State::LoggingOut) {
-    send_log_out_query();
-  } else if (state_ == State::DestroyingKeys) {
-    G()->net_query_dispatcher().destroy_auth_keys(PromiseCreator::lambda([](Result<Unit> result) {
-      if (result.is_ok()) {
-        send_closure_later(G()->td(), &Td::destroy);
-      } else {
-        LOG(INFO) << "Failed to destroy auth keys";
-      }
-    }));
-  }
-}
-void AuthManager::tear_down() {
-  parent_.reset();
-}
-
-bool AuthManager::was_authorized() const {
-  return state_ == State::Ok || state_ == State::LoggingOut || state_ == State::DestroyingKeys ||
-         state_ == State::Closing;
-}
-
-bool AuthManager::is_authorized() const {
-  return state_ == State::Ok;
-}
-
-tl_object_ptr<td_api::AuthorizationState> AuthManager::get_authorization_state_object(State authorization_state) const {
-  switch (authorization_state) {
-    case State::WaitPhoneNumber:
-      return make_tl_object<td_api::authorizationStateWaitPhoneNumber>();
-    case State::WaitEmailAddress:
-      return make_tl_object<td_api::authorizationStateWaitEmailAddress>(allow_apple_id_, allow_google_id_);
-    case State::WaitEmailCode: {
-      td_api::object_ptr<td_api::EmailAddressResetState> reset_state;
-      if (reset_pending_date_ > 0) {
-        reset_state =
-            td_api::make_object<td_api::emailAddressResetStatePending>(max(reset_pending_date_ - G()->unix_time(), 0));
-      } else if (reset_available_period_ >= 0) {
-        reset_state = td_api::make_object<td_api::emailAddressResetStateAvailable>(reset_available_period_);
-      }
-      return make_tl_object<td_api::authorizationStateWaitEmailCode>(
-          allow_apple_id_, allow_google_id_, email_code_info_.get_email_address_authentication_code_info_object(),
-          std::move(reset_state));
-    }
-    case State::WaitCode:
-      return send_code_helper_.get_authorization_state_wait_code();
-    case State::WaitQrCodeConfirmation:
-      return make_tl_object<td_api::authorizationStateWaitOtherDeviceConfirmation>("tg://login?token=" +
-                                                                                   base64url_encode(login_token_));
-    case State::WaitPassword:
-      return make_tl_object<td_api::authorizationStateWaitPassword>(
-          wait_password_state_.hint_, wait_password_state_.has_recovery_, wait_password_state_.has_secure_values_,
-          wait_password_state_.email_address_pattern_);
-    case State::WaitRegistration:
-      return make_tl_object<td_api::authorizationStateWaitRegistration>(
-          terms_of_service_.get_terms_of_service_object());
-    case State::Ok:
-      return make_tl_object<td_api::authorizationStateReady>();
-    case State::LoggingOut:
-    case State::DestroyingKeys:
-      return make_tl_object<td_api::authorizationStateLoggingOut>();
-    case State::Closing:
-      return make_tl_object<td_api::authorizationStateClosing>();
-    case State::None:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-tl_object_ptr<td_api::AuthorizationState> AuthManager::get_current_authorization_state_object() const {
-  if (state_ == State::None) {
-    return nullptr;
-  } else {
-    return get_authorization_state_object(state_);
-  }
-}
-
-void AuthManager::get_state(uint64 query_id) {
-  if (state_ == State::None) {
-    pending_get_authorization_state_requests_.push_back(query_id);
-  } else {
-    send_closure(G()->td(), &Td::send_result, query_id, get_authorization_state_object(state_));
-  }
-}
-
-void AuthManager::check_bot_token(uint64 query_id, string bot_token) {
-  if (state_ == State::WaitPhoneNumber && net_query_id_ == 0) {
-    // can ignore previous checks
-    was_check_bot_token_ = false;  // TODO can we remove was_check_bot_token_?
-  }
-  if (state_ != State::WaitPhoneNumber) {
-    return on_query_error(query_id, Status::Error(400, "Call to checkAuthenticationBotToken unexpected"));
-  }
-  if (!send_code_helper_.phone_number().empty() || was_qr_code_request_) {
-    return on_query_error(
-        query_id, Status::Error(400, "Cannot set bot token after authentication began. You need to log out first"));
-  }
-  if (was_check_bot_token_ && bot_token_ != bot_token) {
-    return on_query_error(query_id, Status::Error(400, "Cannot change bot token. You need to log out first"));
-  }
-
-  on_new_query(query_id);
-  bot_token_ = std::move(bot_token);
-  was_check_bot_token_ = true;
-  start_net_query(NetQueryType::BotAuthentication,
-                  G()->net_query_creator().create_unauth(
-                      telegram_api::auth_importBotAuthorization(0, api_id_, api_hash_, bot_token_)));
-}
-
-void AuthManager::request_qr_code_authentication(uint64 query_id, vector<UserId> other_user_ids) {
-  if (state_ != State::WaitPhoneNumber) {
-    if ((state_ == State::WaitEmailAddress || state_ == State::WaitEmailCode || state_ == State::WaitCode ||
-         state_ == State::WaitPassword || state_ == State::WaitRegistration) &&
-        net_query_id_ == 0) {
-      // ok
-    } else {
-      return on_query_error(query_id, Status::Error(400, "Call to requestQrCodeAuthentication unexpected"));
-    }
-  }
-  if (was_check_bot_token_) {
-    return on_query_error(
-        query_id,
-        Status::Error(400,
-                      "Cannot request QR code authentication after bot token was entered. You need to log out first"));
-  }
-  for (auto &other_user_id : other_user_ids) {
-    if (!other_user_id.is_valid()) {
-      return on_query_error(query_id, Status::Error(400, "Invalid user_id among other user_ids"));
-    }
-  }
-
-  other_user_ids_ = std::move(other_user_ids);
-  send_code_helper_ = SendCodeHelper();
-  terms_of_service_ = TermsOfService();
-  was_qr_code_request_ = true;
-
-  on_new_query(query_id);
-
-  send_export_login_token_query();
-}
-
-void AuthManager::send_export_login_token_query() {
-  poll_export_login_code_timeout_.cancel_timeout();
-  start_net_query(NetQueryType::RequestQrCode,
-                  G()->net_query_creator().create_unauth(telegram_api::auth_exportLoginToken(
-                      api_id_, api_hash_, UserId::get_input_user_ids(other_user_ids_))));
-}
-
-void AuthManager::set_login_token_expires_at(double login_token_expires_at) {
-  login_token_expires_at_ = login_token_expires_at;
-  poll_export_login_code_timeout_.cancel_timeout();
-  poll_export_login_code_timeout_.set_callback(std::move(on_update_login_token_static));
-  poll_export_login_code_timeout_.set_callback_data(static_cast<void *>(td_));
-  poll_export_login_code_timeout_.set_timeout_at(login_token_expires_at_);
-}
-
-void AuthManager::on_update_login_token_static(void *td) {
-  if (G()->close_flag()) {
-    return;
-  }
-  static_cast<Td *>(td)->auth_manager_->on_update_login_token();
-}
-
-void AuthManager::on_update_login_token() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (state_ != State::WaitQrCodeConfirmation) {
-    return;
-  }
-
-  send_export_login_token_query();
-}
-
-void AuthManager::set_phone_number(uint64 query_id, string phone_number,
-                                   td_api::object_ptr<td_api::phoneNumberAuthenticationSettings> settings) {
-  if (state_ != State::WaitPhoneNumber) {
-    if ((state_ == State::WaitEmailAddress || state_ == State::WaitEmailCode || state_ == State::WaitCode ||
-         state_ == State::WaitPassword || state_ == State::WaitRegistration) &&
-        net_query_id_ == 0) {
-      // ok
-    } else {
-      return on_query_error(query_id, Status::Error(400, "Call to setAuthenticationPhoneNumber unexpected"));
-    }
-  }
-  if (was_check_bot_token_) {
-    return on_query_error(
-        query_id, Status::Error(400, "Cannot set phone number after bot token was entered. You need to log out first"));
-  }
-  if (phone_number.empty()) {
-    return on_query_error(query_id, Status::Error(400, "Phone number must be non-empty"));
-  }
-
-  other_user_ids_.clear();
-  was_qr_code_request_ = false;
-
-  allow_apple_id_ = false;
-  allow_google_id_ = false;
-  email_address_ = {};
-  email_code_info_ = {};
-  reset_available_period_ = -1;
-  reset_pending_date_ = -1;
-  code_ = string();
-  email_code_ = {};
-
-  if (send_code_helper_.phone_number() != phone_number) {
-    send_code_helper_ = SendCodeHelper();
-    terms_of_service_ = TermsOfService();
-  }
-
-  on_new_query(query_id);
-
-  start_net_query(NetQueryType::SendCode, G()->net_query_creator().create_unauth(send_code_helper_.send_code(
-                                              std::move(phone_number), settings, api_id_, api_hash_)));
-}
-
-void AuthManager::set_firebase_token(uint64 query_id, string token) {
-  if (state_ != State::WaitCode) {
-    return on_query_error(query_id, Status::Error(400, "Call to sendAuthenticationFirebaseSms unexpected"));
-  }
-  on_new_query(query_id);
-
-  start_net_query(NetQueryType::RequestFirebaseSms,
-                  G()->net_query_creator().create_unauth(send_code_helper_.request_firebase_sms(token)));
-}
-
-void AuthManager::report_missing_code(uint64 query_id, string mobile_network_code) {
-  if (state_ != State::WaitCode) {
-    return on_query_error(query_id, Status::Error(400, "Call to reportAuthenticationCodeMissing unexpected"));
-  }
-  G()->net_query_dispatcher().dispatch_with_callback(
-      G()->net_query_creator().create_unauth(send_code_helper_.report_missing_code(mobile_network_code)),
-      actor_shared(this));
-}
-
-void AuthManager::set_email_address(uint64 query_id, string email_address) {
-  if (state_ != State::WaitEmailAddress) {
-    if (state_ == State::WaitEmailCode && net_query_id_ == 0) {
-      // ok
-    } else {
-      return on_query_error(query_id, Status::Error(400, "Call to setAuthenticationEmailAddress unexpected"));
-    }
-  }
-  if (email_address.empty()) {
-    return on_query_error(query_id, Status::Error(400, "Email address must be non-empty"));
-  }
-
-  email_address_ = std::move(email_address);
-
-  on_new_query(query_id);
-
-  start_net_query(NetQueryType::SendEmailCode,
-                  G()->net_query_creator().create_unauth(send_code_helper_.send_verify_email_code(email_address_)));
-}
-
-void AuthManager::resend_authentication_code(uint64 query_id, td_api::object_ptr<td_api::ResendCodeReason> &&reason) {
-  if (state_ != State::WaitCode) {
-    if (state_ == State::WaitEmailCode) {
-      on_new_query(query_id);
-      start_net_query(NetQueryType::SendEmailCode,
-                      G()->net_query_creator().create_unauth(send_code_helper_.send_verify_email_code(email_address_)));
-      return;
-    }
-
-    return on_query_error(query_id, Status::Error(400, "Call to resendAuthenticationCode unexpected"));
-  }
-
-  auto r_resend_code = send_code_helper_.resend_code(std::move(reason));
-  if (r_resend_code.is_error()) {
-    return on_query_error(query_id, r_resend_code.move_as_error());
-  }
-
-  on_new_query(query_id);
-
-  start_net_query(NetQueryType::SendCode, G()->net_query_creator().create_unauth(r_resend_code.move_as_ok()));
-}
-
-void AuthManager::send_auth_sign_in_query() {
-  bool is_email = !email_code_.is_empty();
-  int32 flags =
-      is_email ? telegram_api::auth_signIn::EMAIL_VERIFICATION_MASK : telegram_api::auth_signIn::PHONE_CODE_MASK;
-  start_net_query(NetQueryType::SignIn,
-                  G()->net_query_creator().create_unauth(telegram_api::auth_signIn(
-                      flags, send_code_helper_.phone_number().str(), send_code_helper_.phone_code_hash().str(), code_,
-                      is_email ? email_code_.get_input_email_verification() : nullptr)));
-}
-
-void AuthManager::check_email_code(uint64 query_id, EmailVerification &&code) {
-  if (code.is_empty()) {
-    return on_query_error(query_id, Status::Error(400, "Code must be non-empty"));
-  }
-  if (state_ != State::WaitEmailCode && !(state_ == State::WaitEmailAddress && code.is_email_code())) {
-    return on_query_error(query_id, Status::Error(400, "Call to checkAuthenticationEmailCode unexpected"));
-  }
-
-  code_ = string();
-  email_code_ = std::move(code);
-
-  on_new_query(query_id);
-  if (email_address_.empty()) {
-    send_auth_sign_in_query();
-  } else {
-    start_net_query(
-        NetQueryType::VerifyEmailAddress,
-        G()->net_query_creator().create_unauth(telegram_api::account_verifyEmail(
-            send_code_helper_.get_email_verify_purpose_login_setup(), email_code_.get_input_email_verification())));
-  }
-}
-
-void AuthManager::reset_email_address(uint64 query_id) {
-  if (state_ != State::WaitEmailCode) {
-    return on_query_error(query_id, Status::Error(400, "Call to resetAuthenticationEmailAddress unexpected"));
-  }
-
-  on_new_query(query_id);
-  start_net_query(NetQueryType::ResetEmailAddress,
-                  G()->net_query_creator().create_unauth(telegram_api::auth_resetLoginEmail(
-                      send_code_helper_.phone_number().str(), send_code_helper_.phone_code_hash().str())));
-}
-
-void AuthManager::check_code(uint64 query_id, string code) {
-  if (state_ != State::WaitCode) {
-    return on_query_error(query_id, Status::Error(400, "Call to checkAuthenticationCode unexpected"));
-  }
-
-  code_ = std::move(code);
-  email_code_ = {};
-
-  on_new_query(query_id);
-  send_auth_sign_in_query();
-}
-
-void AuthManager::register_user(uint64 query_id, string first_name, string last_name, bool disable_notification) {
-  if (state_ != State::WaitRegistration) {
-    return on_query_error(query_id, Status::Error(400, "Call to registerUser unexpected"));
-  }
-
-  on_new_query(query_id);
-  first_name = clean_name(first_name, MAX_NAME_LENGTH);
-  if (first_name.empty()) {
-    return on_current_query_error(Status::Error(400, "First name must be non-empty"));
-  }
-
-  last_name = clean_name(last_name, MAX_NAME_LENGTH);
-  start_net_query(NetQueryType::SignUp, G()->net_query_creator().create_unauth(telegram_api::auth_signUp(
-                                            0, disable_notification, send_code_helper_.phone_number().str(),
-                                            send_code_helper_.phone_code_hash().str(), first_name, last_name)));
-}
-
-void AuthManager::check_password(uint64 query_id, string password) {
-  if (state_ != State::WaitPassword) {
-    return on_query_error(query_id, Status::Error(400, "Call to checkAuthenticationPassword unexpected"));
-  }
-
-  LOG(INFO) << "Have SRP ID " << wait_password_state_.srp_id_;
-  on_new_query(query_id);
-  checking_password_ = true;
-  password_ = std::move(password);
-  recovery_code_.clear();
-  new_password_.clear();
-  new_hint_.clear();
-  start_net_query(NetQueryType::GetPassword,
-                  G()->net_query_creator().create_unauth(telegram_api::account_getPassword()));
-}
-
-void AuthManager::request_password_recovery(uint64 query_id) {
-  if (state_ != State::WaitPassword) {
-    return on_query_error(query_id, Status::Error(400, "Call to requestAuthenticationPasswordRecovery unexpected"));
-  }
-
-  on_new_query(query_id);
-  start_net_query(NetQueryType::RequestPasswordRecovery,
-                  G()->net_query_creator().create_unauth(telegram_api::auth_requestPasswordRecovery()));
-}
-
-void AuthManager::check_password_recovery_code(uint64 query_id, string code) {
-  if (state_ != State::WaitPassword) {
-    return on_query_error(query_id, Status::Error(400, "Call to checkAuthenticationPasswordRecoveryCode unexpected"));
-  }
-
-  on_new_query(query_id);
-  start_net_query(NetQueryType::CheckPasswordRecoveryCode,
-                  G()->net_query_creator().create_unauth(telegram_api::auth_checkRecoveryPassword(code)));
-}
-
-void AuthManager::recover_password(uint64 query_id, string code, string new_password, string new_hint) {
-  if (state_ != State::WaitPassword) {
-    return on_query_error(query_id, Status::Error(400, "Call to recoverAuthenticationPassword unexpected"));
-  }
-
-  on_new_query(query_id);
-  checking_password_ = true;
-  if (!new_password.empty()) {
-    password_.clear();
-    recovery_code_ = std::move(code);
-    new_password_ = std::move(new_password);
-    new_hint_ = std::move(new_hint);
-    start_net_query(NetQueryType::GetPassword,
-                    G()->net_query_creator().create_unauth(telegram_api::account_getPassword()));
-    return;
-  }
-  start_net_query(NetQueryType::RecoverPassword,
-                  G()->net_query_creator().create_unauth(telegram_api::auth_recoverPassword(0, code, nullptr)));
-}
-
-void AuthManager::log_out(uint64 query_id) {
-  if (state_ == State::Closing) {
-    return on_query_error(query_id, Status::Error(400, "Already logged out"));
-  }
-  if (state_ == State::LoggingOut || state_ == State::DestroyingKeys) {
-    return on_query_error(query_id, Status::Error(400, "Already logging out"));
-  }
-  on_new_query(query_id);
-  if (state_ != State::Ok) {
-    // TODO: could skip full logout if still no authorization
-    // TODO: send auth.cancelCode if state_ == State::WaitCode
-    LOG(WARNING) << "Destroying auth keys by user request";
-    destroy_auth_keys();
-    on_current_query_ok();
-  } else {
-    LOG(WARNING) << "Logging out by user request";
-    G()->td_db()->get_binlog_pmc()->set("auth", "logout");
-    update_state(State::LoggingOut);
-    send_log_out_query();
-  }
-}
-
-void AuthManager::send_log_out_query() {
-  // we can lose authorization while logging out, but still may need to resend the request,
-  // so we pretend that it doesn't require authorization
-  auto query = G()->net_query_creator().create_unauth(telegram_api::auth_logOut());
-  query->make_high_priority();
-  start_net_query(NetQueryType::LogOut, std::move(query));
-}
-
-void AuthManager::delete_account(uint64 query_id, string reason, string password) {
-  if (state_ != State::Ok && state_ != State::WaitPassword) {
-    return on_query_error(query_id, Status::Error(400, "Need to log in first"));
-  }
-  if (password.empty() || state_ != State::Ok) {
-    on_new_query(query_id);
-    LOG(INFO) << "Deleting account";
-    start_net_query(NetQueryType::DeleteAccount,
-                    G()->net_query_creator().create_unauth(telegram_api::account_deleteAccount(0, reason, nullptr)));
-  } else {
-    send_closure(G()->password_manager(), &PasswordManager::get_input_check_password_srp, password,
-                 PromiseCreator::lambda(
-                     [actor_id = actor_id(this), query_id, reason = std::move(reason)](
-                         Result<tl_object_ptr<telegram_api::InputCheckPasswordSRP>> r_input_password) mutable {
-                       send_closure(actor_id, &AuthManager::do_delete_account, query_id, std::move(reason),
-                                    std::move(r_input_password));
-                     }));
-  }
-}
-
-void AuthManager::do_delete_account(uint64 query_id, string reason,
-                                    Result<tl_object_ptr<telegram_api::InputCheckPasswordSRP>> r_input_password) {
-  if (r_input_password.is_error()) {
-    return on_query_error(query_id, r_input_password.move_as_error());
-  }
-
-  on_new_query(query_id);
-  LOG(INFO) << "Deleting account with password";
-  int32 flags = telegram_api::account_deleteAccount::PASSWORD_MASK;
-  start_net_query(NetQueryType::DeleteAccount, G()->net_query_creator().create(telegram_api::account_deleteAccount(
-                                                   flags, reason, r_input_password.move_as_ok())));
-}
-
-void AuthManager::on_closing(bool destroy_flag) {
-  auto new_state = destroy_flag ? State::LoggingOut : State::Closing;
-  if (new_state != state_) {
-    update_state(new_state);
-  }
-}
-
-void AuthManager::on_new_query(uint64 query_id) {
-  if (query_id_ != 0) {
-    on_current_query_error(Status::Error(400, "Another authorization query has started"));
-  }
-  checking_password_ = false;
-  net_query_id_ = 0;
-  net_query_type_ = NetQueryType::None;
-  query_id_ = query_id;
-  // TODO: cancel older net_query
-}
-
-void AuthManager::on_current_query_error(Status status) {
-  if (query_id_ == 0) {
-    return;
-  }
-  auto id = query_id_;
-  query_id_ = 0;
-  net_query_id_ = 0;
-  net_query_type_ = NetQueryType::None;
-  checking_password_ = false;
-  on_query_error(id, std::move(status));
-}
-
-void AuthManager::on_query_error(uint64 query_id, Status status) {
-  send_closure(G()->td(), &Td::send_error, query_id, std::move(status));
-}
-
-void AuthManager::on_current_query_ok() {
-  if (query_id_ == 0) {
-    return;
-  }
-  auto id = query_id_;
-  net_query_id_ = 0;
-  net_query_type_ = NetQueryType::None;
-  query_id_ = 0;
-  send_ok(id);
-}
-
-void AuthManager::send_ok(uint64 query_id) {
-  send_closure(G()->td(), &Td::send_result, query_id, td_api::make_object<td_api::ok>());
-}
-
-void AuthManager::start_net_query(NetQueryType net_query_type, NetQueryPtr net_query) {
-  // TODO: cancel old net_query?
-  net_query_type_ = net_query_type;
-  net_query_id_ = net_query->id();
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(net_query), actor_shared(this));
-}
-
-void AuthManager::on_sent_code(telegram_api::object_ptr<telegram_api::auth_SentCode> &&sent_code_ptr) {
-  LOG(INFO) << "Receive " << to_string(sent_code_ptr);
-  auto sent_code_id = sent_code_ptr->get_id();
-  if (sent_code_id != telegram_api::auth_sentCode::ID) {
-    if (sent_code_id == telegram_api::auth_sentCodePaymentRequired::ID) {
-      return on_current_query_error(Status::Error(500, "Receive unsupported response"));
-    }
-    CHECK(sent_code_id == telegram_api::auth_sentCodeSuccess::ID);
-    auto sent_code_success = move_tl_object_as<telegram_api::auth_sentCodeSuccess>(sent_code_ptr);
-    return on_get_authorization(std::move(sent_code_success->authorization_));
-  }
-  auto sent_code = telegram_api::move_object_as<telegram_api::auth_sentCode>(sent_code_ptr);
-  auto code_type_id = sent_code->type_->get_id();
-  if (code_type_id == telegram_api::auth_sentCodeTypeSetUpEmailRequired::ID) {
-    auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeSetUpEmailRequired>(std::move(sent_code->type_));
-    send_code_helper_.on_phone_code_hash(std::move(sent_code->phone_code_hash_));
-    allow_apple_id_ = code_type->apple_signin_allowed_;
-    allow_google_id_ = code_type->google_signin_allowed_;
-    update_state(State::WaitEmailAddress);
-  } else if (code_type_id == telegram_api::auth_sentCodeTypeEmailCode::ID) {
-    auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeEmailCode>(std::move(sent_code->type_));
-    send_code_helper_.on_phone_code_hash(std::move(sent_code->phone_code_hash_));
-    allow_apple_id_ = code_type->apple_signin_allowed_;
-    allow_google_id_ = code_type->google_signin_allowed_;
-    email_address_.clear();
-    if (!code_type->email_pattern_.empty() || email_code_info_.is_empty()) {
-      email_code_info_ = SentEmailCode(std::move(code_type->email_pattern_), code_type->length_);
-    }
-    reset_available_period_ = -1;
-    reset_pending_date_ = -1;
-    if (code_type->reset_pending_date_ > 0) {
-      reset_pending_date_ = code_type->reset_pending_date_;
-    } else if (code_type->reset_available_period_ > 0) {
-      reset_available_period_ = code_type->reset_available_period_;
-    }
-    if (email_code_info_.is_empty()) {
-      email_code_info_ = SentEmailCode("<unknown>", code_type->length_);
-      CHECK(!email_code_info_.is_empty());
-    }
-    update_state(State::WaitEmailCode);
-  } else {
-    send_code_helper_.on_sent_code(std::move(sent_code));
-    update_state(State::WaitCode);
-  }
-  on_current_query_ok();
-}
-
-void AuthManager::on_send_code_result(NetQueryPtr &&net_query) {
-  auto r_sent_code = fetch_result<telegram_api::auth_sendCode>(std::move(net_query));
-  if (r_sent_code.is_error()) {
-    return on_current_query_error(r_sent_code.move_as_error());
-  }
-  on_sent_code(r_sent_code.move_as_ok());
-}
-
-void AuthManager::on_send_email_code_result(NetQueryPtr &&net_query) {
-  auto r_sent_code = fetch_result<telegram_api::account_sendVerifyEmailCode>(std::move(net_query));
-  if (r_sent_code.is_error()) {
-    return on_current_query_error(r_sent_code.move_as_error());
-  }
-  auto sent_code = r_sent_code.move_as_ok();
-
-  LOG(INFO) << "Receive " << to_string(sent_code);
-
-  email_code_info_ = SentEmailCode(std::move(sent_code));
-  if (email_code_info_.is_empty()) {
-    return on_current_query_error(Status::Error(500, "Receive invalid response"));
-  }
-
-  update_state(State::WaitEmailCode);
-  on_current_query_ok();
-}
-
-void AuthManager::on_verify_email_address_result(NetQueryPtr &&net_query) {
-  auto r_email_verified = fetch_result<telegram_api::account_verifyEmail>(std::move(net_query));
-  if (r_email_verified.is_error()) {
-    return on_current_query_error(r_email_verified.move_as_error());
-  }
-  auto email_verified = r_email_verified.move_as_ok();
-
-  LOG(INFO) << "Receive " << to_string(email_verified);
-  if (email_verified->get_id() != telegram_api::account_emailVerifiedLogin::ID) {
-    return on_current_query_error(Status::Error(500, "Receive invalid response"));
-  }
-  reset_available_period_ = -1;
-  reset_pending_date_ = -1;
-
-  auto verified_login = telegram_api::move_object_as<telegram_api::account_emailVerifiedLogin>(email_verified);
-  on_sent_code(std::move(verified_login->sent_code_));
-}
-
-void AuthManager::on_reset_email_address_result(NetQueryPtr &&net_query) {
-  auto r_sent_code = fetch_result<telegram_api::auth_resetLoginEmail>(std::move(net_query));
-  if (r_sent_code.is_error()) {
-    if (reset_available_period_ > 0 && reset_pending_date_ == -1 &&
-        r_sent_code.error().message() == "TASK_ALREADY_EXISTS") {
-      reset_pending_date_ = G()->unix_time() + reset_available_period_;
-      reset_available_period_ = -1;
-      update_state(State::WaitEmailCode);
-    }
-    return on_current_query_error(r_sent_code.move_as_error());
-  }
-  on_sent_code(r_sent_code.move_as_ok());
-}
-
-void AuthManager::on_request_qr_code_result(NetQueryPtr &&net_query, bool is_import) {
-  auto r_login_token = fetch_result<telegram_api::auth_exportLoginToken>(std::move(net_query));
-  if (r_login_token.is_ok()) {
-    auto login_token = r_login_token.move_as_ok();
-
-    if (is_import) {
-      CHECK(DcId::is_valid(imported_dc_id_));
-      G()->net_query_dispatcher().set_main_dc_id(imported_dc_id_);
-      imported_dc_id_ = -1;
-    }
-
-    on_get_login_token(std::move(login_token));
-    return;
-  }
-  auto status = r_login_token.move_as_error();
-
-  LOG(INFO) << "Receive " << status << " for login token " << (is_import ? "import" : "export");
-  if (is_import) {
-    imported_dc_id_ = -1;
-  }
-  if (query_id_ != 0) {
-    on_current_query_error(std::move(status));
-  } else {
-    login_code_retry_delay_ = clamp(2 * login_code_retry_delay_, 1, 60);
-    set_login_token_expires_at(Time::now() + login_code_retry_delay_);
-  }
-}
-
-void AuthManager::on_get_login_token(tl_object_ptr<telegram_api::auth_LoginToken> login_token) {
-  LOG(INFO) << "Receive " << to_string(login_token);
-
-  login_code_retry_delay_ = 0;
-
-  CHECK(login_token != nullptr);
-  switch (login_token->get_id()) {
-    case telegram_api::auth_loginToken::ID: {
-      auto token = move_tl_object_as<telegram_api::auth_loginToken>(login_token);
-      login_token_ = token->token_.as_slice().str();
-      set_login_token_expires_at(Time::now() + td::max(token->expires_ - G()->server_time(), 1.0));
-      update_state(State::WaitQrCodeConfirmation);
-      on_current_query_ok();
-      break;
-    }
-    case telegram_api::auth_loginTokenMigrateTo::ID: {
-      auto token = move_tl_object_as<telegram_api::auth_loginTokenMigrateTo>(login_token);
-      if (!DcId::is_valid(token->dc_id_)) {
-        LOG(ERROR) << "Receive wrong DC " << token->dc_id_;
-        return;
-      }
-      on_current_query_ok();
-
-      imported_dc_id_ = token->dc_id_;
-      start_net_query(NetQueryType::ImportQrCode, G()->net_query_creator().create_unauth(
-                                                      telegram_api::auth_importLoginToken(std::move(token->token_)),
-                                                      DcId::internal(token->dc_id_)));
-      break;
-    }
-    case telegram_api::auth_loginTokenSuccess::ID: {
-      auto token = move_tl_object_as<telegram_api::auth_loginTokenSuccess>(login_token);
-      on_get_authorization(std::move(token->authorization_));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void AuthManager::on_get_password_result(NetQueryPtr &&net_query) {
-  auto r_password = fetch_result<telegram_api::account_getPassword>(std::move(net_query));
-  if (r_password.is_error() && query_id_ != 0) {
-    return on_current_query_error(r_password.move_as_error());
-  }
-  auto password = r_password.is_ok() ? r_password.move_as_ok() : nullptr;
-  LOG(INFO) << "Receive password info: " << to_string(password);
-
-  wait_password_state_ = WaitPasswordState();
-  Result<NewPasswordState> r_new_password_state;
-  if (password != nullptr && password->current_algo_ != nullptr) {
-    switch (password->current_algo_->get_id()) {
-      case telegram_api::passwordKdfAlgoUnknown::ID:
-        return on_current_query_error(Status::Error(400, "Application update is needed to log in"));
-      case telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow::ID: {
-        auto algo = move_tl_object_as<telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow>(
-            password->current_algo_);
-        wait_password_state_.current_client_salt_ = algo->salt1_.as_slice().str();
-        wait_password_state_.current_server_salt_ = algo->salt2_.as_slice().str();
-        wait_password_state_.srp_g_ = algo->g_;
-        wait_password_state_.srp_p_ = algo->p_.as_slice().str();
-        wait_password_state_.srp_B_ = password->srp_B_.as_slice().str();
-        wait_password_state_.srp_id_ = password->srp_id_;
-        wait_password_state_.hint_ = std::move(password->hint_);
-        wait_password_state_.has_recovery_ = password->has_recovery_;
-        wait_password_state_.has_secure_values_ = password->has_secure_values_;
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    r_new_password_state =
-        get_new_password_state(std::move(password->new_algo_), std::move(password->new_secure_algo_));
-  } else if (was_qr_code_request_) {
-    imported_dc_id_ = -1;
-    login_code_retry_delay_ = clamp(2 * login_code_retry_delay_, 1, 60);
-    set_login_token_expires_at(Time::now() + login_code_retry_delay_);
-    return;
-  } else {
-    send_auth_sign_in_query();
-    return;
-  }
-
-  if (imported_dc_id_ != -1) {
-    G()->net_query_dispatcher().set_main_dc_id(imported_dc_id_);
-    imported_dc_id_ = -1;
-  }
-
-  if (state_ == State::WaitPassword && checking_password_) {
-    if (!new_password_.empty()) {
-      if (r_new_password_state.is_error()) {
-        return on_current_query_error(r_new_password_state.move_as_error());
-      }
-
-      auto r_new_settings = PasswordManager::get_password_input_settings(std::move(new_password_), std::move(new_hint_),
-                                                                         r_new_password_state.ok());
-      if (r_new_settings.is_error()) {
-        return on_current_query_error(r_new_settings.move_as_error());
-      }
-
-      int32 flags = telegram_api::auth_recoverPassword::NEW_SETTINGS_MASK;
-      start_net_query(NetQueryType::RecoverPassword,
-                      G()->net_query_creator().create_unauth(
-                          telegram_api::auth_recoverPassword(flags, recovery_code_, r_new_settings.move_as_ok())));
-      return;
-    }
-    LOG(INFO) << "Have SRP ID " << wait_password_state_.srp_id_;
-    auto hash = PasswordManager::get_input_check_password(password_, wait_password_state_.current_client_salt_,
-                                                          wait_password_state_.current_server_salt_,
-                                                          wait_password_state_.srp_g_, wait_password_state_.srp_p_,
-                                                          wait_password_state_.srp_B_, wait_password_state_.srp_id_);
-
-    start_net_query(NetQueryType::CheckPassword,
-                    G()->net_query_creator().create_unauth(telegram_api::auth_checkPassword(std::move(hash))));
-  } else {
-    update_state(State::WaitPassword);
-    on_current_query_ok();
-  }
-}
-
-void AuthManager::on_request_password_recovery_result(NetQueryPtr &&net_query) {
-  auto r_email_address_pattern = fetch_result<telegram_api::auth_requestPasswordRecovery>(std::move(net_query));
-  if (r_email_address_pattern.is_error()) {
-    return on_current_query_error(r_email_address_pattern.move_as_error());
-  }
-  auto email_address_pattern = r_email_address_pattern.move_as_ok();
-  wait_password_state_.email_address_pattern_ = std::move(email_address_pattern->email_pattern_);
-  update_state(State::WaitPassword);
-  on_current_query_ok();
-}
-
-void AuthManager::on_check_password_recovery_code_result(NetQueryPtr &&net_query) {
-  auto r_success = fetch_result<telegram_api::auth_checkRecoveryPassword>(std::move(net_query));
-  if (r_success.is_error()) {
-    return on_current_query_error(r_success.move_as_error());
-  }
-  if (!r_success.ok()) {
-    return on_current_query_error(Status::Error(400, "Invalid recovery code"));
-  }
-  on_current_query_ok();
-}
-
-void AuthManager::on_request_firebase_sms_result(NetQueryPtr &&net_query) {
-  auto r_bool = fetch_result<telegram_api::auth_requestFirebaseSms>(std::move(net_query));
-  if (r_bool.is_error()) {
-    return on_current_query_error(r_bool.move_as_error());
-  }
-  on_current_query_ok();
-}
-
-void AuthManager::on_authentication_result(NetQueryPtr &&net_query, bool is_from_current_query) {
-  auto r_sign_in = fetch_result<telegram_api::auth_signIn>(std::move(net_query));
-  if (r_sign_in.is_error()) {
-    if (is_from_current_query) {
-      return on_current_query_error(r_sign_in.move_as_error());
-    }
-    return;
-  }
-  on_get_authorization(r_sign_in.move_as_ok());
-}
-
-void AuthManager::on_log_out_result(NetQueryPtr &&net_query) {
-  auto r_log_out = fetch_result<telegram_api::auth_logOut>(std::move(net_query));
-  if (r_log_out.is_ok()) {
-    auto logged_out = r_log_out.move_as_ok();
-    if (!logged_out->future_auth_token_.empty()) {
-      td_->option_manager_->set_option_string("authentication_token",
-                                              base64url_encode(logged_out->future_auth_token_.as_slice()));
-    }
-  } else if (r_log_out.error().code() != 401) {
-    LOG(ERROR) << "Receive error for auth.logOut: " << r_log_out.error();
-  }
-  destroy_auth_keys();
-  on_current_query_ok();
-}
-
-void AuthManager::on_account_banned() const {
-  if (is_bot()) {
-    return;
-  }
-  LOG(ERROR) << "Your account was banned for suspicious activity. If you think that this is a mistake, please try to "
-                "log in from an official mobile app and send an email to recover the account by following instructions "
-                "provided by the app";
-}
-
-void AuthManager::on_authorization_lost(string source) {
-  if (state_ == State::LoggingOut && net_query_type_ == NetQueryType::LogOut) {
-    LOG(INFO) << "Ignore authorization loss because of " << source << ", while logging out";
-    return;
-  }
-  if (state_ == State::Closing || state_ == State::DestroyingKeys) {
-    LOG(INFO) << "Ignore duplicate authorization loss because of " << source;
-    return;
-  }
-  LOG(WARNING) << "Lost authorization because of " << source;
-  if (source == "USER_DEACTIVATED_BAN") {
-    on_account_banned();
-  }
-  destroy_auth_keys();
-}
-
-void AuthManager::destroy_auth_keys() {
-  if (state_ == State::Closing || state_ == State::DestroyingKeys) {
-    LOG(INFO) << "Already destroying auth keys";
-    return;
-  }
-  update_state(State::DestroyingKeys);
-  G()->td_db()->get_binlog_pmc()->set("auth", "destroy");
-  G()->net_query_dispatcher().destroy_auth_keys(PromiseCreator::lambda([](Result<Unit> result) {
-    if (result.is_ok()) {
-      send_closure_later(G()->td(), &Td::destroy);
-    } else {
-      LOG(INFO) << "Failed to destroy auth keys";
-    }
-  }));
-}
-
-void AuthManager::on_delete_account_result(NetQueryPtr &&net_query) {
-  auto r_delete_account = fetch_result<telegram_api::account_deleteAccount>(std::move(net_query));
-  if (r_delete_account.is_ok()) {
-    if (!r_delete_account.ok()) {
-      // status = Status::Error(500, "Receive false as result of the request");
-    }
-  } else {
-    auto status = r_delete_account.move_as_error();
-    if (status.message() != "USER_DEACTIVATED") {
-      LOG(WARNING) << "Request account.deleteAccount failed: " << status;
-      // TODO handle some errors
-      return on_current_query_error(std::move(status));
-    }
-  }
-
-  destroy_auth_keys();
-  on_current_query_ok();
-}
-
-void AuthManager::on_get_authorization(tl_object_ptr<telegram_api::auth_Authorization> auth_ptr) {
-  if (state_ == State::Ok) {
-    LOG(WARNING) << "Ignore duplicate auth.Authorization";
-    return on_current_query_ok();
-  }
-  CHECK(auth_ptr != nullptr);
-  if (auth_ptr->get_id() == telegram_api::auth_authorizationSignUpRequired::ID) {
-    auto sign_up_required = telegram_api::move_object_as<telegram_api::auth_authorizationSignUpRequired>(auth_ptr);
-    terms_of_service_ = TermsOfService(std::move(sign_up_required->terms_of_service_));
-    update_state(State::WaitRegistration);
-    return on_current_query_ok();
-  }
-  auto auth = telegram_api::move_object_as<telegram_api::auth_authorization>(auth_ptr);
-
-  td_->option_manager_->set_option_integer("authorization_date", G()->unix_time());
-  if (was_check_bot_token_) {
-    is_bot_ = true;
-    G()->td_db()->get_binlog_pmc()->set("auth_is_bot", "true");
-  }
-  G()->td_db()->get_binlog_pmc()->set("auth", "ok");
-  code_.clear();
-  password_.clear();
-  recovery_code_.clear();
-  new_password_.clear();
-  new_hint_.clear();
-  state_ = State::Ok;
-  if (auth->user_->get_id() == telegram_api::user::ID) {
-    auto *user = static_cast<telegram_api::user *>(auth->user_.get());
-    if (!user->self_) {
-      LOG(ERROR) << "Receive invalid authorization for " << to_string(auth->user_);
-      user->self_ = true;
-    }
-  }
-  td_->user_manager_->on_get_user(std::move(auth->user_), "on_get_authorization");
-  update_state(State::Ok);
-  if (!td_->user_manager_->get_my_id().is_valid()) {
-    LOG(ERROR) << "Server didsn't send proper authorization";
-    on_current_query_error(Status::Error(500, "Server didn't send proper authorization"));
-    log_out(0);
-    return;
-  }
-  if (auth->tmp_sessions_ > 0) {
-    td_->option_manager_->set_option_integer("session_count", auth->tmp_sessions_);
-  }
-  if (auth->setup_password_required_ && auth->otherwise_relogin_days_ > 0) {
-    td_->option_manager_->set_option_integer("otherwise_relogin_days", auth->otherwise_relogin_days_);
-  }
-  if (!auth->future_auth_token_.empty()) {
-    td_->option_manager_->set_option_string("authentication_token",
-                                            base64url_encode(auth->future_auth_token_.as_slice()));
-  }
-  td_->attach_menu_manager_->init();
-  td_->messages_manager_->on_authorization_success();
-  td_->dialog_filter_manager_->on_authorization_success();  // must be after MessagesManager::on_authorization_success()
-                                                            // to have folders created
-  td_->notification_manager_->init();
-  td_->online_manager_->init();
-  td_->promo_data_manager_->init();
-  td_->reaction_manager_->init();
-  td_->stickers_manager_->init();
-  td_->terms_of_service_manager_->init();
-  td_->theme_manager_->init();
-  td_->top_dialog_manager_->init();
-  td_->updates_manager_->get_difference("on_get_authorization");
-  if (!is_bot()) {
-    G()->td_db()->get_binlog_pmc()->set("fetched_marks_as_unread", "1");
-  }
-  send_closure(G()->config_manager(), &ConfigManager::request_config, false);
-  on_current_query_ok();
-}
-
-void AuthManager::on_result(NetQueryPtr net_query) {
-  NetQueryType type = NetQueryType::None;
-  LOG(INFO) << "Receive result of query " << net_query->id() << ", expecting " << net_query_id_ << " with type "
-            << static_cast<int32>(net_query_type_);
-  if (net_query->id() == net_query_id_) {
-    net_query_id_ = 0;
-    type = net_query_type_;
-    net_query_type_ = NetQueryType::None;
-    if (net_query->is_error()) {
-      if ((type == NetQueryType::SendCode || type == NetQueryType::SendEmailCode ||
-           type == NetQueryType::VerifyEmailAddress || type == NetQueryType::SignIn ||
-           type == NetQueryType::RequestQrCode || type == NetQueryType::ImportQrCode) &&
-          net_query->error().code() == 401 && net_query->error().message() == CSlice("SESSION_PASSWORD_NEEDED")) {
-        auto dc_id = DcId::main();
-        if (type == NetQueryType::ImportQrCode) {
-          CHECK(DcId::is_valid(imported_dc_id_));
-          dc_id = DcId::internal(imported_dc_id_);
-        }
-        net_query->clear();
-        start_net_query(NetQueryType::GetPassword,
-                        G()->net_query_creator().create_unauth(telegram_api::account_getPassword(), dc_id));
-        return;
-      }
-      if (net_query->error().message() == CSlice("PHONE_NUMBER_BANNED")) {
-        on_account_banned();
-      }
-      if (type != NetQueryType::LogOut && type != NetQueryType::DeleteAccount) {
-        if (query_id_ != 0) {
-          if (state_ == State::WaitPhoneNumber) {
-            other_user_ids_.clear();
-            send_code_helper_ = SendCodeHelper();
-            terms_of_service_ = TermsOfService();
-            was_qr_code_request_ = false;
-            was_check_bot_token_ = false;
-          }
-          on_current_query_error(net_query->move_as_error());
-          return;
-        }
-        if (type != NetQueryType::RequestQrCode && type != NetQueryType::ImportQrCode &&
-            type != NetQueryType::GetPassword) {
-          LOG(INFO) << "Ignore error for net query of type " << static_cast<int32>(type);
-          type = NetQueryType::None;
-        }
-      }
-    }
-  } else if (net_query->is_ok() && net_query->ok_tl_constructor() == telegram_api::auth_authorization::ID) {
-    type = NetQueryType::Authentication;
-  }
-  switch (type) {
-    case NetQueryType::None:
-      net_query->clear();
-      break;
-    case NetQueryType::SignIn:
-    case NetQueryType::SignUp:
-    case NetQueryType::BotAuthentication:
-    case NetQueryType::CheckPassword:
-    case NetQueryType::RecoverPassword:
-      on_authentication_result(std::move(net_query), true);
-      break;
-    case NetQueryType::Authentication:
-      on_authentication_result(std::move(net_query), false);
-      break;
-    case NetQueryType::SendCode:
-      on_send_code_result(std::move(net_query));
-      break;
-    case NetQueryType::SendEmailCode:
-      on_send_email_code_result(std::move(net_query));
-      break;
-    case NetQueryType::VerifyEmailAddress:
-      on_verify_email_address_result(std::move(net_query));
-      break;
-    case NetQueryType::ResetEmailAddress:
-      on_reset_email_address_result(std::move(net_query));
-      break;
-    case NetQueryType::RequestQrCode:
-      on_request_qr_code_result(std::move(net_query), false);
-      break;
-    case NetQueryType::ImportQrCode:
-      on_request_qr_code_result(std::move(net_query), true);
-      break;
-    case NetQueryType::GetPassword:
-      on_get_password_result(std::move(net_query));
-      break;
-    case NetQueryType::RequestPasswordRecovery:
-      on_request_password_recovery_result(std::move(net_query));
-      break;
-    case NetQueryType::CheckPasswordRecoveryCode:
-      on_check_password_recovery_code_result(std::move(net_query));
-      break;
-    case NetQueryType::RequestFirebaseSms:
-      on_request_firebase_sms_result(std::move(net_query));
-      break;
-    case NetQueryType::LogOut:
-      on_log_out_result(std::move(net_query));
-      break;
-    case NetQueryType::DeleteAccount:
-      on_delete_account_result(std::move(net_query));
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void AuthManager::update_state(State new_state, bool should_save_state) {
-  bool skip_update = (state_ == State::LoggingOut || state_ == State::DestroyingKeys) &&
-                     (new_state == State::LoggingOut || new_state == State::DestroyingKeys);
-  state_ = new_state;
-  if (should_save_state) {
-    save_state();
-  }
-  if (new_state == State::LoggingOut || new_state == State::DestroyingKeys) {
-    send_closure(G()->state_manager(), &StateManager::on_logging_out, true);
-  }
-  if (!skip_update) {
-    send_closure(G()->td(), &Td::send_update,
-                 make_tl_object<td_api::updateAuthorizationState>(get_authorization_state_object(state_)));
-  }
-
-  if (!pending_get_authorization_state_requests_.empty()) {
-    auto query_ids = std::move(pending_get_authorization_state_requests_);
-    for (auto query_id : query_ids) {
-      send_closure(G()->td(), &Td::send_result, query_id, get_authorization_state_object(state_));
-    }
-  }
-}
-
-bool AuthManager::load_state() {
-  auto data = G()->td_db()->get_binlog_pmc()->get("auth_state");
-  if (data.empty()) {
-    LOG(INFO) << "Have no saved auth_state. Waiting for phone number";
-    return false;
-  }
-  DbState db_state;
-  auto status = log_event_parse(db_state, data);
-  if (status.is_error()) {
-    LOG(INFO) << "Ignore auth_state: " << status;
-    return false;
-  }
-  if (db_state.api_id_ != api_id_ || db_state.api_hash_ != api_hash_) {
-    LOG(INFO) << "Ignore auth_state: api_id or api_hash changed";
-    return false;
-  }
-  if (db_state.expires_at_ <= Time::now()) {
-    LOG(INFO) << "Ignore auth_state: expired";
-    return false;
-  }
-
-  LOG(INFO) << "Load auth_state from database: " << tag("state", static_cast<int32>(db_state.state_));
-  if (db_state.state_ == State::WaitEmailAddress) {
-    allow_apple_id_ = db_state.allow_apple_id_;
-    allow_google_id_ = db_state.allow_google_id_;
-    send_code_helper_ = std::move(db_state.send_code_helper_);
-  } else if (db_state.state_ == State::WaitEmailCode) {
-    allow_apple_id_ = db_state.allow_apple_id_;
-    allow_google_id_ = db_state.allow_google_id_;
-    email_address_ = std::move(db_state.email_address_);
-    email_code_info_ = std::move(db_state.email_code_info_);
-    reset_available_period_ = db_state.reset_available_period_;
-    reset_pending_date_ = db_state.reset_pending_date_;
-    send_code_helper_ = std::move(db_state.send_code_helper_);
-  } else if (db_state.state_ == State::WaitCode) {
-    send_code_helper_ = std::move(db_state.send_code_helper_);
-  } else if (db_state.state_ == State::WaitQrCodeConfirmation) {
-    other_user_ids_ = std::move(db_state.other_user_ids_);
-    login_token_ = std::move(db_state.login_token_);
-    set_login_token_expires_at(db_state.login_token_expires_at_);
-  } else if (db_state.state_ == State::WaitPassword) {
-    wait_password_state_ = std::move(db_state.wait_password_state_);
-  } else if (db_state.state_ == State::WaitRegistration) {
-    send_code_helper_ = std::move(db_state.send_code_helper_);
-    terms_of_service_ = std::move(db_state.terms_of_service_);
-  } else {
-    UNREACHABLE();
-  }
-  update_state(db_state.state_, false);
-  return true;
-}
-
-void AuthManager::save_state() {
-  if (state_ != State::WaitEmailAddress && state_ != State::WaitEmailCode && state_ != State::WaitCode &&
-      state_ != State::WaitQrCodeConfirmation && state_ != State::WaitPassword && state_ != State::WaitRegistration) {
-    if (state_ != State::Closing) {
-      G()->td_db()->get_binlog_pmc()->erase("auth_state");
-    }
-    return;
-  }
-
-  DbState db_state = [&] {
-    if (state_ == State::WaitEmailAddress) {
-      return DbState::wait_email_address(api_id_, api_hash_, allow_apple_id_, allow_google_id_, send_code_helper_);
-    } else if (state_ == State::WaitEmailCode) {
-      return DbState::wait_email_code(api_id_, api_hash_, allow_apple_id_, allow_google_id_, email_address_,
-                                      email_code_info_, reset_available_period_, reset_pending_date_,
-                                      send_code_helper_);
-    } else if (state_ == State::WaitCode) {
-      return DbState::wait_code(api_id_, api_hash_, send_code_helper_);
-    } else if (state_ == State::WaitQrCodeConfirmation) {
-      return DbState::wait_qr_code_confirmation(api_id_, api_hash_, other_user_ids_, login_token_,
-                                                login_token_expires_at_);
-    } else if (state_ == State::WaitPassword) {
-      return DbState::wait_password(api_id_, api_hash_, wait_password_state_);
-    } else {
-      CHECK(state_ == State::WaitRegistration);
-      return DbState::wait_registration(api_id_, api_hash_, send_code_helper_, terms_of_service_);
-    }
-  }();
-  G()->td_db()->get_binlog_pmc()->set("auth_state", log_event_store(db_state).as_slice().str());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AuthManager.h b/third-party/td/td/td/telegram/AuthManager.h
deleted file mode 100644
index 8113c8c73e..0000000000
--- a/third-party/td/td/td/telegram/AuthManager.h
+++ /dev/null
@@ -1,233 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/EmailVerification.h"
-#include "td/telegram/net/NetActor.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/SendCodeHelper.h"
-#include "td/telegram/SentEmailCode.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TermsOfService.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class AuthManager final : public NetActor {
- public:
-  AuthManager(int32 api_id, const string &api_hash, ActorShared<> parent);
-
-  bool is_bot() const {
-    return is_bot_ || net_query_type_ == NetQueryType::BotAuthentication;
-  }
-
-  bool is_authorized() const;
-  bool was_authorized() const;
-  void get_state(uint64 query_id);
-
-  void set_phone_number(uint64 query_id, string phone_number,
-                        td_api::object_ptr<td_api::phoneNumberAuthenticationSettings> settings);
-  void set_firebase_token(uint64 query_id, string token);
-  void report_missing_code(uint64 query_id, string mobile_network_code);
-  void set_email_address(uint64 query_id, string email_address);
-  void resend_authentication_code(uint64 query_id, td_api::object_ptr<td_api::ResendCodeReason> &&reason);
-  void check_email_code(uint64 query_id, EmailVerification &&code);
-  void reset_email_address(uint64 query_id);
-  void check_code(uint64 query_id, string code);
-  void register_user(uint64 query_id, string first_name, string last_name, bool disable_notification);
-  void request_qr_code_authentication(uint64 query_id, vector<UserId> other_user_ids);
-  void check_bot_token(uint64 query_id, string bot_token);
-  void check_password(uint64 query_id, string password);
-  void request_password_recovery(uint64 query_id);
-  void check_password_recovery_code(uint64 query_id, string code);
-  void recover_password(uint64 query_id, string code, string new_password, string new_hint);
-  void log_out(uint64 query_id);
-  void delete_account(uint64 query_id, string reason, string password);
-
-  void on_update_login_token();
-
-  void on_authorization_lost(string source);
-  void on_closing(bool destroy_flag);
-
-  // can return nullptr if state isn't initialized yet
-  tl_object_ptr<td_api::AuthorizationState> get_current_authorization_state_object() const;
-
- private:
-  static constexpr size_t MAX_NAME_LENGTH = 64;  // server side limit
-
-  enum class State : int32 {
-    None,
-    WaitPhoneNumber,
-    WaitCode,
-    WaitQrCodeConfirmation,
-    WaitPassword,
-    WaitRegistration,
-    WaitEmailAddress,
-    WaitEmailCode,
-    Ok,
-    LoggingOut,
-    DestroyingKeys,
-    Closing
-  } state_ = State::None;
-
-  enum class NetQueryType : int32 {
-    None,
-    SignIn,
-    SignUp,
-    SendCode,
-    SendEmailCode,
-    VerifyEmailAddress,
-    ResetEmailAddress,
-    RequestQrCode,
-    ImportQrCode,
-    GetPassword,
-    CheckPassword,
-    RequestPasswordRecovery,
-    CheckPasswordRecoveryCode,
-    RecoverPassword,
-    RequestFirebaseSms,
-    BotAuthentication,
-    Authentication,
-    LogOut,
-    DeleteAccount
-  };
-
-  struct WaitPasswordState {
-    string current_client_salt_;
-    string current_server_salt_;
-    int32 srp_g_ = 0;
-    string srp_p_;
-    string srp_B_;
-    int64 srp_id_ = 0;
-    string hint_;
-    bool has_recovery_ = false;
-    bool has_secure_values_ = false;
-    string email_address_pattern_;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct DbState;
-
-  bool load_state();
-  void save_state();
-
-  ActorShared<> parent_;
-
-  // STATE
-  // from constructor
-  int32 api_id_;
-  string api_hash_;
-
-  // State::WaitEmailAddress
-  bool allow_apple_id_ = false;
-  bool allow_google_id_ = false;
-
-  // State::WaitEmailCode
-  string email_address_;
-  SentEmailCode email_code_info_;
-  int32 reset_available_period_ = -1;
-  int32 reset_pending_date_ = -1;
-  EmailVerification email_code_;
-
-  // State::WaitCode
-  SendCodeHelper send_code_helper_;
-  string code_;
-
-  // State::WaitQrCodeConfirmation
-  vector<UserId> other_user_ids_;
-  string login_token_;
-  double login_token_expires_at_ = 0.0;
-  int32 imported_dc_id_ = -1;
-
-  // State::WaitPassword
-  string password_;
-
-  // State::WaitRegistration
-  TermsOfService terms_of_service_;
-
-  // for bots
-  string bot_token_;
-
-  uint64 query_id_ = 0;
-
-  WaitPasswordState wait_password_state_;
-
-  string recovery_code_;
-  string new_password_;
-  string new_hint_;
-
-  int32 login_code_retry_delay_ = 0;
-  Timeout poll_export_login_code_timeout_;
-
-  bool checking_password_ = false;
-  bool was_qr_code_request_ = false;
-  bool was_check_bot_token_ = false;
-  bool is_bot_ = false;
-  uint64 net_query_id_ = 0;
-  NetQueryType net_query_type_ = NetQueryType::None;
-
-  vector<uint64> pending_get_authorization_state_requests_;
-
-  void on_new_query(uint64 query_id);
-  void on_current_query_error(Status status);
-  void on_current_query_ok();
-  void start_net_query(NetQueryType net_query_type, NetQueryPtr net_query);
-
-  static void on_update_login_token_static(void *td);
-  void send_export_login_token_query();
-  void set_login_token_expires_at(double login_token_expires_at);
-
-  void do_delete_account(uint64 query_id, string reason,
-                         Result<tl_object_ptr<telegram_api::InputCheckPasswordSRP>> r_input_password);
-
-  void send_auth_sign_in_query();
-  void send_log_out_query();
-  void destroy_auth_keys();
-
-  void on_account_banned() const;
-
-  void on_sent_code(telegram_api::object_ptr<telegram_api::auth_SentCode> &&sent_code_ptr);
-
-  void on_send_code_result(NetQueryPtr &&net_query);
-  void on_send_email_code_result(NetQueryPtr &&net_query);
-  void on_verify_email_address_result(NetQueryPtr &&net_query);
-  void on_reset_email_address_result(NetQueryPtr &&net_query);
-  void on_request_qr_code_result(NetQueryPtr &&net_query, bool is_import);
-  void on_get_password_result(NetQueryPtr &&net_query);
-  void on_request_password_recovery_result(NetQueryPtr &&net_query);
-  void on_check_password_recovery_code_result(NetQueryPtr &&net_query);
-  void on_request_firebase_sms_result(NetQueryPtr &&net_query);
-  void on_authentication_result(NetQueryPtr &&net_query, bool is_from_current_query);
-  void on_log_out_result(NetQueryPtr &&net_query);
-  void on_delete_account_result(NetQueryPtr &&net_query);
-  void on_get_login_token(tl_object_ptr<telegram_api::auth_LoginToken> login_token);
-  void on_get_authorization(tl_object_ptr<telegram_api::auth_Authorization> auth_ptr);
-
-  void on_result(NetQueryPtr net_query) final;
-
-  void update_state(State new_state, bool should_save_state = true);
-  tl_object_ptr<td_api::AuthorizationState> get_authorization_state_object(State authorization_state) const;
-
-  static void send_ok(uint64 query_id);
-  static void on_query_error(uint64 query_id, Status status);
-
-  void start_up() final;
-  void tear_down() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AuthManager.hpp b/third-party/td/td/td/telegram/AuthManager.hpp
deleted file mode 100644
index a6cb2542f5..0000000000
--- a/third-party/td/td/td/telegram/AuthManager.hpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AuthManager.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void AuthManager::WaitPasswordState::store(StorerT &storer) const {
-  using td::store;
-  store(current_client_salt_, storer);
-  store(current_server_salt_, storer);
-  store(srp_g_, storer);
-  store(srp_p_, storer);
-  store(srp_B_, storer);
-  store(srp_id_, storer);
-  store(hint_, storer);
-  store(has_recovery_, storer);
-  store(email_address_pattern_, storer);
-  store(has_secure_values_, storer);
-}
-
-template <class ParserT>
-void AuthManager::WaitPasswordState::parse(ParserT &parser) {
-  using td::parse;
-  parse(current_client_salt_, parser);
-  parse(current_server_salt_, parser);
-  parse(srp_g_, parser);
-  parse(srp_p_, parser);
-  parse(srp_B_, parser);
-  parse(srp_id_, parser);
-  parse(hint_, parser);
-  parse(has_recovery_, parser);
-  parse(email_address_pattern_, parser);
-  parse(has_secure_values_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AutoDownloadSettings.cpp b/third-party/td/td/td/telegram/AutoDownloadSettings.cpp
deleted file mode 100644
index a591a6072d..0000000000
--- a/third-party/td/td/td/telegram/AutoDownloadSettings.cpp
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AutoDownloadSettings.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-static td_api::object_ptr<td_api::autoDownloadSettings> convert_auto_download_settings(
-    const telegram_api::object_ptr<telegram_api::autoDownloadSettings> &settings) {
-  CHECK(settings != nullptr);
-  constexpr int32 MAX_PHOTO_SIZE = 10 * (1 << 20) /* 10 MB */;
-  constexpr int64 MAX_DOCUMENT_SIZE = (static_cast<int64>(1) << 52);
-  return td_api::make_object<td_api::autoDownloadSettings>(
-      !settings->disabled_, clamp(settings->photo_size_max_, static_cast<int32>(0), MAX_PHOTO_SIZE),
-      clamp(settings->video_size_max_, static_cast<int64>(0), MAX_DOCUMENT_SIZE),
-      clamp(settings->file_size_max_, static_cast<int64>(0), MAX_DOCUMENT_SIZE), settings->video_upload_maxbitrate_,
-      settings->video_preload_large_, settings->audio_preload_next_, settings->stories_preload_,
-      settings->phonecalls_less_data_);
-}
-
-class GetAutoDownloadSettingsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::autoDownloadSettingsPresets>> promise_;
-
- public:
-  explicit GetAutoDownloadSettingsQuery(Promise<td_api::object_ptr<td_api::autoDownloadSettingsPresets>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getAutoDownloadSettings()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getAutoDownloadSettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto settings = result_ptr.move_as_ok();
-    promise_.set_value(td_api::make_object<td_api::autoDownloadSettingsPresets>(
-        convert_auto_download_settings(settings->low_), convert_auto_download_settings(settings->medium_),
-        convert_auto_download_settings(settings->high_)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-static telegram_api::object_ptr<telegram_api::autoDownloadSettings> get_input_auto_download_settings(
-    const AutoDownloadSettings &settings) {
-  return telegram_api::make_object<telegram_api::autoDownloadSettings>(
-      0, !settings.is_enabled, settings.preload_large_videos, settings.preload_next_audio,
-      settings.use_less_data_for_calls, settings.preload_stories, settings.max_photo_file_size,
-      settings.max_video_file_size, settings.max_other_file_size, settings.video_upload_bitrate, 0, 0);
-}
-
-class SaveAutoDownloadSettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SaveAutoDownloadSettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(NetType type, const AutoDownloadSettings &settings) {
-    send_query(G()->net_query_creator().create(telegram_api::account_saveAutoDownloadSettings(
-        0, type == NetType::MobileRoaming, type == NetType::WiFi, get_input_auto_download_settings(settings))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_saveAutoDownloadSettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(INFO) << "Receive result for SaveAutoDownloadSettingsQuery: " << result_ptr.ok();
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-AutoDownloadSettings get_auto_download_settings(const td_api::object_ptr<td_api::autoDownloadSettings> &settings) {
-  CHECK(settings != nullptr);
-  AutoDownloadSettings result;
-  result.max_photo_file_size = settings->max_photo_file_size_;
-  result.max_video_file_size = settings->max_video_file_size_;
-  result.max_other_file_size = settings->max_other_file_size_;
-  result.video_upload_bitrate = settings->video_upload_bitrate_;
-  result.is_enabled = settings->is_auto_download_enabled_;
-  result.preload_large_videos = settings->preload_large_videos_;
-  result.preload_next_audio = settings->preload_next_audio_;
-  result.preload_stories = settings->preload_stories_;
-  result.use_less_data_for_calls = settings->use_less_data_for_calls_;
-  return result;
-}
-
-void get_auto_download_settings_presets(Td *td,
-                                        Promise<td_api::object_ptr<td_api::autoDownloadSettingsPresets>> &&promise) {
-  td->create_handler<GetAutoDownloadSettingsQuery>(std::move(promise))->send();
-}
-
-void set_auto_download_settings(Td *td, NetType type, AutoDownloadSettings settings, Promise<Unit> &&promise) {
-  td->create_handler<SaveAutoDownloadSettingsQuery>(std::move(promise))->send(type, settings);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AutoDownloadSettings.h b/third-party/td/td/td/telegram/AutoDownloadSettings.h
deleted file mode 100644
index 2c1576e6f2..0000000000
--- a/third-party/td/td/td/telegram/AutoDownloadSettings.h
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetType.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class AutoDownloadSettings {
- public:
-  int32 max_photo_file_size = 0;
-  int64 max_video_file_size = 0;
-  int64 max_other_file_size = 0;
-  int32 video_upload_bitrate = 0;
-  bool is_enabled = false;
-  bool preload_large_videos = false;
-  bool preload_next_audio = false;
-  bool preload_stories = false;
-  bool use_less_data_for_calls = false;
-};
-
-AutoDownloadSettings get_auto_download_settings(const td_api::object_ptr<td_api::autoDownloadSettings> &settings);
-
-void get_auto_download_settings_presets(Td *td,
-                                        Promise<td_api::object_ptr<td_api::autoDownloadSettingsPresets>> &&promise);
-
-void set_auto_download_settings(Td *td, NetType type, AutoDownloadSettings settings, Promise<Unit> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AutosaveManager.cpp b/third-party/td/td/td/telegram/AutosaveManager.cpp
deleted file mode 100644
index 85c2e2d77f..0000000000
--- a/third-party/td/td/td/telegram/AutosaveManager.cpp
+++ /dev/null
@@ -1,538 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/AutosaveManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class GetAutoSaveSettingsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::account_autoSaveSettings>> promise_;
-
- public:
-  explicit GetAutoSaveSettingsQuery(Promise<telegram_api::object_ptr<telegram_api::account_autoSaveSettings>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getAutoSaveSettings(), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getAutoSaveSettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetAutoSaveSettingsQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SaveAutoSaveSettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SaveAutoSaveSettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool users, bool chats, bool broadcasts, DialogId dialog_id,
-            telegram_api::object_ptr<telegram_api::autoSaveSettings> settings) {
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::InputPeer> input_peer;
-    if (!users && !chats && !broadcasts) {
-      flags |= telegram_api::account_saveAutoSaveSettings::PEER_MASK;
-      input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-      CHECK(input_peer != nullptr);
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_saveAutoSaveSettings(flags, users, chats, broadcasts, std::move(input_peer),
-                                                   std::move(settings)),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_saveAutoSaveSettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-    td_->autosave_manager_->reload_autosave_settings();
-  }
-};
-
-class DeleteAutoSaveExceptionsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteAutoSaveExceptionsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_deleteAutoSaveExceptions(), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_deleteAutoSaveExceptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-    td_->autosave_manager_->reload_autosave_settings();
-  }
-};
-
-AutosaveManager::AutosaveManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void AutosaveManager::tear_down() {
-  parent_.reset();
-}
-
-AutosaveManager::DialogAutosaveSettings::DialogAutosaveSettings(const telegram_api::autoSaveSettings *settings) {
-  CHECK(settings != nullptr);
-  are_inited_ = true;
-  autosave_photos_ = settings->photos_;
-  autosave_videos_ = settings->videos_;
-  max_video_file_size_ = clamp(settings->video_max_size_, MIN_MAX_VIDEO_FILE_SIZE, MAX_MAX_VIDEO_FILE_SIZE);
-}
-
-AutosaveManager::DialogAutosaveSettings::DialogAutosaveSettings(const td_api::scopeAutosaveSettings *settings) {
-  if (settings == nullptr) {
-    return;
-  }
-  are_inited_ = true;
-  autosave_photos_ = settings->autosave_photos_;
-  autosave_videos_ = settings->autosave_videos_;
-  max_video_file_size_ = clamp(settings->max_video_file_size_, MIN_MAX_VIDEO_FILE_SIZE, MAX_MAX_VIDEO_FILE_SIZE);
-}
-
-telegram_api::object_ptr<telegram_api::autoSaveSettings>
-AutosaveManager::DialogAutosaveSettings::get_input_auto_save_settings() const {
-  int32 flags = 0;
-  if (are_inited_) {
-    flags |= telegram_api::autoSaveSettings::VIDEO_MAX_SIZE_MASK;
-  }
-  return telegram_api::make_object<telegram_api::autoSaveSettings>(flags, autosave_photos_, autosave_videos_,
-                                                                   max_video_file_size_);
-}
-
-td_api::object_ptr<td_api::scopeAutosaveSettings>
-AutosaveManager::DialogAutosaveSettings::get_scope_autosave_settings_object() const {
-  if (!are_inited_) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::scopeAutosaveSettings>(autosave_photos_, autosave_videos_, max_video_file_size_);
-}
-
-td_api::object_ptr<td_api::autosaveSettingsException>
-AutosaveManager::DialogAutosaveSettings::get_autosave_settings_exception_object(const Td *td,
-                                                                                DialogId dialog_id) const {
-  return td_api::make_object<td_api::autosaveSettingsException>(
-      td->dialog_manager_->get_chat_id_object(dialog_id, "autosaveSettingsException"),
-      get_scope_autosave_settings_object());
-}
-
-bool AutosaveManager::DialogAutosaveSettings::operator==(const DialogAutosaveSettings &other) const {
-  return are_inited_ == other.are_inited_ && autosave_photos_ == other.autosave_photos_ &&
-         autosave_videos_ == other.autosave_videos_ && max_video_file_size_ == other.max_video_file_size_;
-}
-
-bool AutosaveManager::DialogAutosaveSettings::operator!=(const DialogAutosaveSettings &other) const {
-  return !operator==(other);
-}
-
-template <class StorerT>
-void AutosaveManager::DialogAutosaveSettings::store(StorerT &storer) const {
-  CHECK(are_inited_);
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(autosave_photos_);
-  STORE_FLAG(autosave_videos_);
-  END_STORE_FLAGS();
-  td::store(max_video_file_size_, storer);
-}
-
-template <class ParserT>
-void AutosaveManager::DialogAutosaveSettings::parse(ParserT &parser) {
-  are_inited_ = true;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(autosave_photos_);
-  PARSE_FLAG(autosave_videos_);
-  END_PARSE_FLAGS();
-  td::parse(max_video_file_size_, parser);
-}
-
-td_api::object_ptr<td_api::autosaveSettings> AutosaveManager::AutosaveSettings::get_autosave_settings_object(
-    const Td *td) const {
-  CHECK(are_inited_);
-  auto exceptions = transform(exceptions_, [td](const auto &exception) {
-    return exception.second.get_autosave_settings_exception_object(td, exception.first);
-  });
-  return td_api::make_object<td_api::autosaveSettings>(
-      user_settings_.get_scope_autosave_settings_object(), chat_settings_.get_scope_autosave_settings_object(),
-      broadcast_settings_.get_scope_autosave_settings_object(), std::move(exceptions));
-}
-
-template <class StorerT>
-void AutosaveManager::AutosaveSettings::store(StorerT &storer) const {
-  CHECK(are_inited_);
-  bool has_exceptions = !exceptions_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_exceptions);
-  END_STORE_FLAGS();
-  td::store(user_settings_, storer);
-  td::store(chat_settings_, storer);
-  td::store(broadcast_settings_, storer);
-  if (has_exceptions) {
-    td::store(narrow_cast<uint32>(exceptions_.size()), storer);
-    for (auto &exception : exceptions_) {
-      td::store(exception.first, storer);
-      td::store(exception.second, storer);
-    }
-  }
-}
-
-template <class ParserT>
-void AutosaveManager::AutosaveSettings::parse(ParserT &parser) {
-  are_inited_ = true;
-  bool has_exceptions;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_exceptions);
-  END_PARSE_FLAGS();
-  td::parse(user_settings_, parser);
-  td::parse(chat_settings_, parser);
-  td::parse(broadcast_settings_, parser);
-  if (has_exceptions) {
-    uint32 size;
-    td::parse(size, parser);
-    for (size_t i = 0; i < size; i++) {
-      DialogId dialog_id;
-      DialogAutosaveSettings settings;
-      td::parse(dialog_id, parser);
-      td::parse(settings, parser);
-      if (dialog_id.is_valid()) {
-        exceptions_.emplace(dialog_id, std::move(settings));
-      }
-    }
-  }
-}
-
-void AutosaveManager::get_autosave_settings(Promise<td_api::object_ptr<td_api::autosaveSettings>> &&promise) {
-  if (settings_.are_inited_) {
-    return promise.set_value(settings_.get_autosave_settings_object(td_));
-  }
-
-  load_autosave_settings(std::move(promise));
-}
-
-string AutosaveManager::get_autosave_settings_database_key() {
-  return "autosave_settings";
-}
-
-void AutosaveManager::load_autosave_settings(Promise<td_api::object_ptr<td_api::autosaveSettings>> &&promise) {
-  load_settings_queries_.push_back(std::move(promise));
-  if (load_settings_queries_.size() != 1) {
-    return;
-  }
-
-  if (G()->use_message_database()) {
-    G()->td_db()->get_sqlite_pmc()->get(
-        get_autosave_settings_database_key(), PromiseCreator::lambda([actor_id = actor_id(this)](string value) mutable {
-          send_closure(actor_id, &AutosaveManager::on_load_autosave_settings_from_database, std::move(value));
-        }));
-    return;
-  }
-
-  reload_autosave_settings();
-}
-
-void AutosaveManager::on_load_autosave_settings_from_database(string value) {
-  if (G()->close_flag()) {
-    return fail_promises(load_settings_queries_, Global::request_aborted_error());
-  }
-  if (settings_.are_inited_) {
-    CHECK(load_settings_queries_.empty());
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Autosave settings aren't found in database";
-    return reload_autosave_settings();
-  }
-
-  LOG(INFO) << "Successfully loaded autosave settings from database";
-
-  auto status = log_event_parse(settings_, value);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load autosave settings: " << status;
-    settings_ = {};
-    return reload_autosave_settings();
-  }
-
-  Dependencies dependencies;
-  for (auto &exception : settings_.exceptions_) {
-    dependencies.add_dialog_and_dependencies(exception.first);
-  }
-  if (!dependencies.resolve_force(td_, "on_load_autosave_settings_from_database")) {
-    G()->td_db()->get_binlog_pmc()->erase(get_autosave_settings_database_key());
-    settings_ = {};
-    return reload_autosave_settings();
-  }
-
-  settings_.are_inited_ = true;
-  send_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopePrivateChats>(),
-                                settings_.user_settings_);
-  send_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopeGroupChats>(),
-                                settings_.chat_settings_);
-  send_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopeChannelChats>(),
-                                settings_.broadcast_settings_);
-  for (auto &exception : settings_.exceptions_) {
-    send_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopeChat>(exception.first.get()),
-                                  exception.second);
-  }
-
-  auto promises = std::move(load_settings_queries_);
-  for (auto &promise : promises) {
-    promise.set_value(settings_.get_autosave_settings_object(td_));
-  }
-}
-
-void AutosaveManager::reload_autosave_settings() {
-  if (G()->close_flag()) {
-    return fail_promises(load_settings_queries_, Global::request_aborted_error());
-  }
-  if (settings_.are_being_reloaded_) {
-    settings_.need_reload_ = true;
-    return;
-  }
-  settings_.are_being_reloaded_ = true;
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::account_autoSaveSettings>> r_settings) {
-        send_closure(actor_id, &AutosaveManager::on_get_autosave_settings, std::move(r_settings));
-      });
-  td_->create_handler<GetAutoSaveSettingsQuery>(std::move(query_promise))->send();
-}
-
-void AutosaveManager::on_get_autosave_settings(
-    Result<telegram_api::object_ptr<telegram_api::account_autoSaveSettings>> r_settings) {
-  G()->ignore_result_if_closing(r_settings);
-
-  CHECK(settings_.are_being_reloaded_);
-  settings_.are_being_reloaded_ = false;
-  SCOPE_EXIT {
-    if (settings_.need_reload_) {
-      settings_.need_reload_ = false;
-      reload_autosave_settings();
-    }
-  };
-  if (r_settings.is_error()) {
-    return fail_promises(load_settings_queries_, r_settings.move_as_error());
-  }
-
-  auto settings = r_settings.move_as_ok();
-  td_->user_manager_->on_get_users(std::move(settings->users_), "on_get_autosave_settings");
-  td_->chat_manager_->on_get_chats(std::move(settings->chats_), "on_get_autosave_settings");
-
-  DialogAutosaveSettings new_user_settings(settings->users_settings_.get());
-  DialogAutosaveSettings new_chat_settings(settings->chats_settings_.get());
-  DialogAutosaveSettings new_broadcast_settings(settings->broadcasts_settings_.get());
-
-  settings_.are_inited_ = true;
-  if (settings_.user_settings_ != new_user_settings) {
-    settings_.user_settings_ = std::move(new_user_settings);
-    send_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopePrivateChats>(),
-                                  settings_.user_settings_);
-  }
-  if (settings_.chat_settings_ != new_chat_settings) {
-    settings_.chat_settings_ = std::move(new_chat_settings);
-    send_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopeGroupChats>(),
-                                  settings_.chat_settings_);
-  }
-  if (settings_.broadcast_settings_ != new_broadcast_settings) {
-    settings_.broadcast_settings_ = std::move(new_broadcast_settings);
-    send_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopeChannelChats>(),
-                                  settings_.broadcast_settings_);
-  }
-  FlatHashSet<DialogId, DialogIdHash> exception_dialog_ids;
-  for (auto &exception : settings_.exceptions_) {
-    exception_dialog_ids.insert(exception.first);
-  }
-  for (auto &exception : settings->exceptions_) {
-    DialogId dialog_id(exception->peer_);
-    if (!dialog_id.is_valid()) {
-      continue;
-    }
-    td_->dialog_manager_->force_create_dialog(dialog_id, "on_get_autosave_settings");
-    DialogAutosaveSettings new_settings(exception->settings_.get());
-    auto &current_settings = settings_.exceptions_[dialog_id];
-    if (current_settings != new_settings) {
-      current_settings = std::move(new_settings);
-      send_update_autosave_settings(
-          td_api::make_object<td_api::autosaveSettingsScopeChat>(
-              td_->dialog_manager_->get_chat_id_object(dialog_id, "autosaveSettingsScopeChat")),
-          current_settings);
-    }
-    exception_dialog_ids.erase(dialog_id);
-  }
-  for (auto dialog_id : exception_dialog_ids) {
-    settings_.exceptions_.erase(dialog_id);
-    send_update_autosave_settings(
-        td_api::make_object<td_api::autosaveSettingsScopeChat>(
-            td_->dialog_manager_->get_chat_id_object(dialog_id, "autosaveSettingsScopeChat 2")),
-        DialogAutosaveSettings());
-  }
-
-  save_autosave_settings();
-
-  auto promises = std::move(load_settings_queries_);
-  for (auto &promise : promises) {
-    promise.set_value(settings_.get_autosave_settings_object(td_));
-  }
-}
-
-void AutosaveManager::save_autosave_settings() {
-  if (G()->use_message_database()) {
-    LOG(INFO) << "Save autosave settings to database";
-    G()->td_db()->get_sqlite_pmc()->set(get_autosave_settings_database_key(),
-                                        log_event_store(settings_).as_slice().str(), Auto());
-  }
-}
-
-void AutosaveManager::set_autosave_settings(td_api::object_ptr<td_api::AutosaveSettingsScope> &&scope,
-                                            td_api::object_ptr<td_api::scopeAutosaveSettings> &&settings,
-                                            Promise<Unit> &&promise) {
-  if (scope == nullptr) {
-    return promise.set_error(Status::Error(400, "Scope must be non-empty"));
-  }
-  if (!settings_.are_inited_) {
-    return promise.set_error(Status::Error(400, "Autosave settings must be loaded first"));
-  }
-  auto new_settings = DialogAutosaveSettings(settings.get());
-  DialogAutosaveSettings *old_settings = nullptr;
-  bool users = false;
-  bool chats = false;
-  bool broadcasts = false;
-  DialogId dialog_id;
-  switch (scope->get_id()) {
-    case td_api::autosaveSettingsScopePrivateChats::ID:
-      users = true;
-      old_settings = &settings_.user_settings_;
-      break;
-    case td_api::autosaveSettingsScopeGroupChats::ID:
-      chats = true;
-      old_settings = &settings_.chat_settings_;
-      break;
-    case td_api::autosaveSettingsScopeChannelChats::ID:
-      broadcasts = true;
-      old_settings = &settings_.broadcast_settings_;
-      break;
-    case td_api::autosaveSettingsScopeChat::ID:
-      dialog_id = DialogId(static_cast<const td_api::autosaveSettingsScopeChat *>(scope.get())->chat_id_);
-      TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                            "set_autosave_settings"));
-      old_settings = &settings_.exceptions_[dialog_id];
-      break;
-    default:
-      UNREACHABLE();
-  }
-  if (!dialog_id.is_valid() && !new_settings.are_inited_) {
-    new_settings.are_inited_ = true;
-    new_settings.max_video_file_size_ = DialogAutosaveSettings::DEFAULT_MAX_VIDEO_FILE_SIZE;
-  }
-  if (*old_settings == new_settings) {
-    return promise.set_value(Unit());
-  }
-  if (new_settings.are_inited_) {
-    *old_settings = std::move(new_settings);
-    send_update_autosave_settings(std::move(scope), *old_settings);
-  } else {
-    CHECK(dialog_id.is_valid());
-    settings_.exceptions_.erase(dialog_id);
-    send_update_autosave_settings(std::move(scope), DialogAutosaveSettings());
-  }
-
-  save_autosave_settings();
-
-  td_->create_handler<SaveAutoSaveSettingsQuery>(std::move(promise))
-      ->send(users, chats, broadcasts, dialog_id, new_settings.get_input_auto_save_settings());
-}
-
-void AutosaveManager::clear_autosave_settings_exceptions(Promise<Unit> &&promise) {
-  if (!settings_.are_inited_) {
-    return promise.set_error(Status::Error(400, "Autosave settings must be loaded first"));
-  }
-  for (const auto &exception : settings_.exceptions_) {
-    send_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopeChat>(exception.first.get()),
-                                  DialogAutosaveSettings());
-  }
-  settings_.exceptions_.clear();
-  save_autosave_settings();
-  td_->create_handler<DeleteAutoSaveExceptionsQuery>(std::move(promise))->send();
-}
-
-td_api::object_ptr<td_api::updateAutosaveSettings> AutosaveManager::get_update_autosave_settings(
-    td_api::object_ptr<td_api::AutosaveSettingsScope> &&scope, const DialogAutosaveSettings &settings) {
-  return td_api::make_object<td_api::updateAutosaveSettings>(std::move(scope),
-                                                             settings.get_scope_autosave_settings_object());
-}
-
-void AutosaveManager::send_update_autosave_settings(td_api::object_ptr<td_api::AutosaveSettingsScope> &&scope,
-                                                    const DialogAutosaveSettings &settings) {
-  send_closure(G()->td(), &Td::send_update, get_update_autosave_settings(std::move(scope), settings));
-}
-
-void AutosaveManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (!settings_.are_inited_) {
-    return;
-  }
-  updates.push_back(get_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopePrivateChats>(),
-                                                 settings_.user_settings_));
-  updates.push_back(get_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopeGroupChats>(),
-                                                 settings_.chat_settings_));
-  updates.push_back(get_update_autosave_settings(td_api::make_object<td_api::autosaveSettingsScopeChannelChats>(),
-                                                 settings_.broadcast_settings_));
-  for (const auto &exception : settings_.exceptions_) {
-    updates.push_back(get_update_autosave_settings(
-        td_api::make_object<td_api::autosaveSettingsScopeChat>(exception.first.get()), exception.second));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/AutosaveManager.h b/third-party/td/td/td/telegram/AutosaveManager.h
deleted file mode 100644
index aa592f4de8..0000000000
--- a/third-party/td/td/td/telegram/AutosaveManager.h
+++ /dev/null
@@ -1,117 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class AutosaveManager final : public Actor {
- public:
-  AutosaveManager(Td *td, ActorShared<> parent);
-
-  void reload_autosave_settings();
-
-  void get_autosave_settings(Promise<td_api::object_ptr<td_api::autosaveSettings>> &&promise);
-
-  void set_autosave_settings(td_api::object_ptr<td_api::AutosaveSettingsScope> &&scope,
-                             td_api::object_ptr<td_api::scopeAutosaveSettings> &&settings, Promise<Unit> &&promise);
-
-  void clear_autosave_settings_exceptions(Promise<Unit> &&promise);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  struct DialogAutosaveSettings {
-    bool are_inited_ = false;
-    bool autosave_photos_ = false;
-    bool autosave_videos_ = false;
-    int64 max_video_file_size_ = 0;
-
-    static constexpr int64 MIN_MAX_VIDEO_FILE_SIZE = 512 * 1024;
-    static constexpr int64 DEFAULT_MAX_VIDEO_FILE_SIZE = 100 * 1024 * 1024;
-    static constexpr int64 MAX_MAX_VIDEO_FILE_SIZE = static_cast<int64>(4000) * 1024 * 1024;
-
-    DialogAutosaveSettings() = default;
-
-    explicit DialogAutosaveSettings(const telegram_api::autoSaveSettings *settings);
-
-    explicit DialogAutosaveSettings(const td_api::scopeAutosaveSettings *settings);
-
-    telegram_api::object_ptr<telegram_api::autoSaveSettings> get_input_auto_save_settings() const;
-
-    td_api::object_ptr<td_api::scopeAutosaveSettings> get_scope_autosave_settings_object() const;
-
-    td_api::object_ptr<td_api::autosaveSettingsException> get_autosave_settings_exception_object(
-        const Td *td, DialogId dialog_id) const;
-
-    bool operator==(const DialogAutosaveSettings &other) const;
-
-    bool operator!=(const DialogAutosaveSettings &other) const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct AutosaveSettings {
-    bool are_inited_ = false;
-    bool are_being_reloaded_ = false;
-    bool need_reload_ = false;
-    DialogAutosaveSettings user_settings_;
-    DialogAutosaveSettings chat_settings_;
-    DialogAutosaveSettings broadcast_settings_;
-    FlatHashMap<DialogId, DialogAutosaveSettings, DialogIdHash> exceptions_;
-
-    td_api::object_ptr<td_api::autosaveSettings> get_autosave_settings_object(const Td *td) const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  void tear_down() final;
-
-  string get_autosave_settings_database_key();
-
-  void load_autosave_settings(Promise<td_api::object_ptr<td_api::autosaveSettings>> &&promise);
-
-  void on_load_autosave_settings_from_database(string value);
-
-  void on_get_autosave_settings(Result<telegram_api::object_ptr<telegram_api::account_autoSaveSettings>> r_settings);
-
-  void save_autosave_settings();
-
-  static td_api::object_ptr<td_api::updateAutosaveSettings> get_update_autosave_settings(
-      td_api::object_ptr<td_api::AutosaveSettingsScope> &&scope, const DialogAutosaveSettings &settings);
-
-  void send_update_autosave_settings(td_api::object_ptr<td_api::AutosaveSettingsScope> &&scope,
-                                     const DialogAutosaveSettings &settings);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  AutosaveSettings settings_;
-  vector<Promise<td_api::object_ptr<td_api::autosaveSettings>>> load_settings_queries_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundId.h b/third-party/td/td/td/telegram/BackgroundId.h
deleted file mode 100644
index 8c2c67db7a..0000000000
--- a/third-party/td/td/td/telegram/BackgroundId.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <type_traits>
-
-namespace td {
-
-class BackgroundId {
-  int64 id = 0;
-
- public:
-  BackgroundId() = default;
-
-  explicit constexpr BackgroundId(int64 background_id) : id(background_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  BackgroundId(T background_id) = delete;
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const BackgroundId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const BackgroundId &other) const {
-    return id != other.id;
-  }
-
-  bool is_valid() const {
-    return id != 0;
-  }
-
-  bool is_local() const {
-    return 0 < id && id <= 0x7FFFFFFF;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(id, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(id, parser);
-  }
-};
-
-struct BackgroundIdHash {
-  uint32 operator()(BackgroundId background_id) const {
-    return Hash<int64>()(background_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, BackgroundId background_id) {
-  return string_builder << "background " << background_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundInfo.cpp b/third-party/td/td/td/telegram/BackgroundInfo.cpp
deleted file mode 100644
index dc7c361541..0000000000
--- a/third-party/td/td/td/telegram/BackgroundInfo.cpp
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BackgroundInfo.h"
-
-#include "td/telegram/BackgroundManager.h"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-BackgroundInfo::BackgroundInfo(Td *td, telegram_api::object_ptr<telegram_api::WallPaper> &&wallpaper_ptr,
-                               bool allow_empty) {
-  auto background = td->background_manager_->on_get_background(BackgroundId(), string(), std::move(wallpaper_ptr),
-                                                               false, allow_empty);
-  background_id_ = background.first;
-  background_type_ = std::move(background.second);
-}
-
-td_api::object_ptr<td_api::background> BackgroundInfo::get_background_object(const Td *td) const {
-  return td->background_manager_->get_background_object(background_id_, false, &background_type_);
-}
-
-td_api::object_ptr<td_api::chatBackground> BackgroundInfo::get_chat_background_object(const Td *td) const {
-  auto background = get_background_object(td);
-  if (background == nullptr) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::chatBackground>(std::move(background), background_type_.get_dark_theme_dimming());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundInfo.h b/third-party/td/td/td/telegram/BackgroundInfo.h
deleted file mode 100644
index 8046f020ac..0000000000
--- a/third-party/td/td/td/telegram/BackgroundInfo.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BackgroundId.h"
-#include "td/telegram/BackgroundType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class BackgroundInfo {
-  BackgroundId background_id_;
-  BackgroundType background_type_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundInfo &background_info);
-
- public:
-  BackgroundInfo() : background_id_(), background_type_() {
-  }
-
-  BackgroundInfo(Td *td, telegram_api::object_ptr<telegram_api::WallPaper> &&wallpaper_ptr, bool allow_empty);
-
-  td_api::object_ptr<td_api::background> get_background_object(const Td *td) const;
-
-  td_api::object_ptr<td_api::chatBackground> get_chat_background_object(const Td *td) const;
-
-  bool is_valid() const {
-    return background_id_.is_valid();
-  }
-
-  bool operator==(const BackgroundInfo &other) const {
-    return background_type_ == other.background_type_ &&
-           (background_id_ == other.background_id_ || (background_id_.is_local() && other.background_id_.is_local()));
-  }
-
-  bool operator!=(const BackgroundInfo &other) const {
-    return !(*this == other);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundInfo &background_info) {
-  return string_builder << background_info.background_id_ << " with " << background_info.background_type_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundInfo.hpp b/third-party/td/td/td/telegram/BackgroundInfo.hpp
deleted file mode 100644
index 4aa2ede4c5..0000000000
--- a/third-party/td/td/td/telegram/BackgroundInfo.hpp
+++ /dev/null
@@ -1,30 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BackgroundInfo.h"
-#include "td/telegram/BackgroundManager.h"
-#include "td/telegram/BackgroundType.hpp"
-#include "td/telegram/Td.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BackgroundInfo::store(StorerT &storer) const {
-  storer.context()->td().get_actor_unsafe()->background_manager_->store_background(background_id_, storer);
-  td::store(background_type_, storer);
-}
-
-template <class ParserT>
-void BackgroundInfo::parse(ParserT &parser) {
-  parser.context()->td().get_actor_unsafe()->background_manager_->parse_background(background_id_, parser);
-  td::parse(background_type_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundManager.cpp b/third-party/td/td/td/telegram/BackgroundManager.cpp
deleted file mode 100644
index b9925f840f..0000000000
--- a/third-party/td/td/td/telegram/BackgroundManager.cpp
+++ /dev/null
@@ -1,1501 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BackgroundManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BackgroundType.hpp"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/DocumentsManager.hpp"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-
-namespace td {
-
-class GetBackgroundQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BackgroundId background_id_;
-  string background_name_;
-
- public:
-  explicit GetBackgroundQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BackgroundId background_id, const string &background_name,
-            telegram_api::object_ptr<telegram_api::InputWallPaper> &&input_wallpaper) {
-    background_id_ = background_id;
-    background_name_ = background_name;
-    send_query(G()->net_query_creator().create(telegram_api::account_getWallPaper(std::move(input_wallpaper))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getWallPaper>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->background_manager_->on_get_background(background_id_, background_name_, result_ptr.move_as_ok(), true, false);
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for GetBackgroundQuery for " << background_id_ << "/" << background_name_ << ": "
-              << status;
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBackgroundsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::account_WallPapers>> promise_;
-
- public:
-  explicit GetBackgroundsQuery(Promise<telegram_api::object_ptr<telegram_api::account_WallPapers>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getWallPapers(0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getWallPapers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetChatWallPaperQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  bool is_remove_ = false;
-  bool is_revert_ = false;
-
- public:
-  explicit SetChatWallPaperQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, telegram_api::object_ptr<telegram_api::InputWallPaper> input_wallpaper,
-            telegram_api::object_ptr<telegram_api::wallPaperSettings> settings, MessageId old_message_id, bool for_both,
-            bool revert) {
-    dialog_id_ = dialog_id;
-    is_revert_ = revert;
-    is_remove_ = input_wallpaper == nullptr && settings == nullptr && !revert;
-    if (is_remove_) {
-      td_->messages_manager_->on_update_dialog_background(dialog_id_, nullptr);
-    }
-
-    int32 flags = 0;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    if (input_wallpaper != nullptr) {
-      flags |= telegram_api::messages_setChatWallPaper::WALLPAPER_MASK;
-    }
-    if (settings != nullptr) {
-      flags |= telegram_api::messages_setChatWallPaper::SETTINGS_MASK;
-    }
-    if (old_message_id.is_valid()) {
-      flags |= telegram_api::messages_setChatWallPaper::ID_MASK;
-    }
-    if (for_both) {
-      flags |= telegram_api::messages_setChatWallPaper::FOR_BOTH_MASK;
-    }
-    if (revert) {
-      flags |= telegram_api::messages_setChatWallPaper::REVERT_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_setChatWallPaper(
-        flags, false /*ignored*/, false /*ignored*/, std::move(input_peer), std::move(input_wallpaper),
-        std::move(settings), old_message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setChatWallPaper>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SetChatWallPaperQuery: " << to_string(ptr);
-    if (is_remove_) {
-      td_->messages_manager_->on_update_dialog_background(dialog_id_, nullptr);
-    }
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (is_remove_) {
-      td_->dialog_manager_->reload_dialog_info_full(dialog_id_, "SetChatWallPaperQuery");
-    } else if (is_revert_ && status.message() == "WALLPAPER_NOT_FOUND") {
-      return td_->background_manager_->delete_dialog_background(dialog_id_, false, std::move(promise_));
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SetChatWallPaperQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class InstallBackgroundQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit InstallBackgroundQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputWallPaper> input_wallpaper, const BackgroundType &type) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_installWallPaper(std::move(input_wallpaper), type.get_input_wallpaper_settings())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_installWallPaper>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG_IF(INFO, !result_ptr.ok()) << "Receive false from account.installWallPaper";
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UploadBackgroundQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::background>> promise_;
-  FileUploadId file_upload_id_;
-  BackgroundType type_;
-  DialogId dialog_id_;
-  bool for_dark_theme_;
-
- public:
-  explicit UploadBackgroundQuery(Promise<td_api::object_ptr<td_api::background>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-            const BackgroundType &type, DialogId dialog_id, bool for_dark_theme) {
-    CHECK(input_file != nullptr);
-    file_upload_id_ = file_upload_id;
-    type_ = type;
-    dialog_id_ = dialog_id;
-    for_dark_theme_ = for_dark_theme;
-    send_query(G()->net_query_creator().create(telegram_api::account_uploadWallPaper(
-        0, dialog_id.is_valid(), std::move(input_file), type_.get_mime_type(), type_.get_input_wallpaper_settings())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_uploadWallPaper>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->background_manager_->on_uploaded_background_file(file_upload_id_, type_, dialog_id_, for_dark_theme_,
-                                                          result_ptr.move_as_ok(), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    CHECK(file_upload_id_.is_valid());
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      // TODO td_->background_manager_->on_upload_background_file_parts_missing(file_upload_id_, std::move(bad_parts));
-      // return;
-    } else {
-      td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id_, status);
-    }
-    td_->file_manager_->cancel_upload(file_upload_id_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UnsaveBackgroundQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UnsaveBackgroundQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputWallPaper> input_wallpaper) {
-    send_query(G()->net_query_creator().create(telegram_api::account_saveWallPaper(
-        std::move(input_wallpaper), true, telegram_api::make_object<telegram_api::wallPaperSettings>())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_saveWallPaper>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for save background: " << result;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for save background: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResetBackgroundsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ResetBackgroundsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_resetWallPapers()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_resetWallPapers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for reset backgrounds: " << result;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for reset backgrounds: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BackgroundManager::UploadBackgroundFileCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->background_manager(), &BackgroundManager::on_upload_background_file, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->background_manager(), &BackgroundManager::on_upload_background_file_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-BackgroundManager::BackgroundManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_background_file_callback_ = std::make_shared<UploadBackgroundFileCallback>();
-}
-
-template <class StorerT>
-void BackgroundManager::Background::store(StorerT &storer) const {
-  bool has_file_id = file_id.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_creator);
-  STORE_FLAG(is_default);
-  STORE_FLAG(is_dark);
-  STORE_FLAG(has_file_id);
-  STORE_FLAG(has_new_local_id);
-  END_STORE_FLAGS();
-  td::store(id, storer);
-  td::store(access_hash, storer);
-  td::store(name, storer);
-  if (has_file_id) {
-    storer.context()->td().get_actor_unsafe()->documents_manager_->store_document(file_id, storer);
-  }
-  td::store(type, storer);
-}
-
-template <class ParserT>
-void BackgroundManager::Background::parse(ParserT &parser) {
-  bool has_file_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_creator);
-  PARSE_FLAG(is_default);
-  PARSE_FLAG(is_dark);
-  PARSE_FLAG(has_file_id);
-  PARSE_FLAG(has_new_local_id);
-  END_PARSE_FLAGS();
-  td::parse(id, parser);
-  td::parse(access_hash, parser);
-  td::parse(name, parser);
-  if (has_file_id) {
-    file_id = parser.context()->td().get_actor_unsafe()->documents_manager_->parse_document(parser);
-  } else {
-    file_id = FileId();
-  }
-  td::parse(type, parser);
-}
-
-class BackgroundManager::BackgroundLogEvent {
- public:
-  Background background_;
-  BackgroundType set_type_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(background_, storer);
-    td::store(set_type_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(background_, parser);
-    td::parse(set_type_, parser);
-  }
-};
-
-class BackgroundManager::BackgroundsLogEvent {
- public:
-  vector<Background> backgrounds_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(backgrounds_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(backgrounds_, parser);
-  }
-};
-
-void BackgroundManager::start_up() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  max_local_background_id_ = BackgroundId(to_integer<int64>(G()->td_db()->get_binlog_pmc()->get("max_bg_id")));
-
-  // first parse all log events and fix max_local_background_id_ value
-  bool has_selected_background[2] = {false, false};
-  BackgroundLogEvent selected_background_log_event[2];
-  for (int i = 0; i < 2; i++) {
-    bool for_dark_theme = i != 0;
-    auto log_event_string = G()->td_db()->get_binlog_pmc()->get(get_background_database_key(for_dark_theme));
-    if (!log_event_string.empty()) {
-      has_selected_background[i] = true;
-      log_event_parse(selected_background_log_event[i], log_event_string).ensure();
-      const Background &background = selected_background_log_event[i].background_;
-      if (background.has_new_local_id && background.id.is_local() && !background.type.has_file() &&
-          background.id.get() > max_local_background_id_.get()) {
-        set_max_local_background_id(background.id);
-      }
-      add_local_background_to_cache(background);
-    }
-  }
-
-  for (int i = 0; i < 2; i++) {
-    bool for_dark_theme = i != 0;
-    auto log_event_string = G()->td_db()->get_binlog_pmc()->get(get_local_backgrounds_database_key(for_dark_theme));
-    if (!log_event_string.empty()) {
-      BackgroundsLogEvent log_event;
-      log_event_parse(log_event, log_event_string).ensure();
-      for (const auto &background : log_event.backgrounds_) {
-        CHECK(background.has_new_local_id);
-        CHECK(background.id.is_valid());
-        CHECK(background.id.is_local());
-        CHECK(!background.type.has_file());
-        CHECK(!background.file_id.is_valid());
-        if (background.id.get() > max_local_background_id_.get()) {
-          set_max_local_background_id(background.id);
-        }
-        add_local_background_to_cache(background);
-        add_background(background, true);
-        local_background_ids_[for_dark_theme].push_back(background.id);
-      }
-    }
-  }
-
-  // then add selected backgrounds fixing their identifiers
-  for (int i = 0; i < 2; i++) {
-    bool for_dark_theme = i != 0;
-    if (has_selected_background[i]) {
-      Background &background = selected_background_log_event[i].background_;
-
-      bool need_resave = false;
-      if (!background.has_new_local_id && !background.type.has_file()) {
-        background.has_new_local_id = true;
-        set_local_background_id(background);
-        need_resave = true;
-      }
-
-      CHECK(background.id.is_valid());
-      if (background.file_id.is_valid() != background.type.has_file()) {
-        LOG(ERROR) << "Failed to load " << background.id << " of " << background.type;
-        need_resave = true;
-      } else {
-        set_background_id_[for_dark_theme] = background.id;
-        set_background_type_[for_dark_theme] = selected_background_log_event[i].set_type_;
-
-        add_background(background, false);
-      }
-
-      if (need_resave) {
-        save_background_id(for_dark_theme);
-      }
-    }
-
-    send_update_default_background(for_dark_theme);
-  }
-}
-
-void BackgroundManager::tear_down() {
-  parent_.reset();
-}
-
-void BackgroundManager::store_background(BackgroundId background_id, LogEventStorerCalcLength &storer) {
-  const auto *background = get_background(background_id);
-  CHECK(background != nullptr);
-  store(*background, storer);
-}
-
-void BackgroundManager::store_background(BackgroundId background_id, LogEventStorerUnsafe &storer) {
-  const auto *background = get_background(background_id);
-  CHECK(background != nullptr);
-  store(*background, storer);
-}
-
-void BackgroundManager::parse_background(BackgroundId &background_id, LogEventParser &parser) {
-  Background background;
-  parse(background, parser);
-  if (!background.has_new_local_id || background.file_id.is_valid() != background.type.has_file() ||
-      !background.id.is_valid()) {
-    parser.set_error(PSTRING() << "Failed to load " << background.id);
-    background_id = BackgroundId();
-    return;
-  }
-  if (background.id.is_local() && !background.type.has_file() && background.id.get() > max_local_background_id_.get()) {
-    set_max_local_background_id(background.id);
-  }
-  background_id = background.id;
-  add_local_background_to_cache(background);
-  add_background(background, false);
-}
-
-void BackgroundManager::get_backgrounds(bool for_dark_theme,
-                                        Promise<td_api::object_ptr<td_api::backgrounds>> &&promise) {
-  pending_get_backgrounds_queries_.emplace_back(for_dark_theme, std::move(promise));
-  if (pending_get_backgrounds_queries_.size() == 1) {
-    auto request_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::account_WallPapers>> result) {
-          send_closure(actor_id, &BackgroundManager::on_get_backgrounds, std::move(result));
-        });
-
-    td_->create_handler<GetBackgroundsQuery>(std::move(request_promise))->send();
-  }
-}
-
-void BackgroundManager::reload_background_from_server(
-    BackgroundId background_id, const string &background_name,
-    telegram_api::object_ptr<telegram_api::InputWallPaper> &&input_wallpaper, Promise<Unit> &&promise) const {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  td_->create_handler<GetBackgroundQuery>(std::move(promise))
-      ->send(background_id, background_name, std::move(input_wallpaper));
-}
-
-void BackgroundManager::reload_background(BackgroundId background_id, int64 access_hash, Promise<Unit> &&promise) {
-  reload_background_from_server(
-      background_id, string(),
-      telegram_api::make_object<telegram_api::inputWallPaper>(background_id.get(), access_hash), std::move(promise));
-}
-
-std::pair<BackgroundId, BackgroundType> BackgroundManager::search_background(const string &name,
-                                                                             Promise<Unit> &&promise) {
-  auto params_pos = name.find('?');
-  string slug = params_pos >= name.size() ? name : name.substr(0, params_pos);
-  auto it = name_to_background_id_.find(slug);
-  if (it != name_to_background_id_.end()) {
-    CHECK(!BackgroundType::is_background_name_local(slug));
-
-    const auto *background = get_background(it->second);
-    CHECK(background != nullptr);
-    promise.set_value(Unit());
-    BackgroundType type = background->type;
-    type.apply_parameters_from_link(name);
-    return {it->second, std::move(type)};
-  }
-
-  if (slug.empty()) {
-    promise.set_error(Status::Error(400, "Background name must be non-empty"));
-    return {};
-  }
-
-  if (BackgroundType::is_background_name_local(slug)) {
-    auto r_type = BackgroundType::get_local_background_type(name);
-    if (r_type.is_error()) {
-      promise.set_error(r_type.move_as_error());
-      return {};
-    }
-    auto background_id = add_local_background(r_type.ok());
-    promise.set_value(Unit());
-    return {background_id, r_type.ok()};
-  }
-
-  if (G()->use_sqlite_pmc() && loaded_from_database_backgrounds_.count(slug) == 0) {
-    auto &queries = being_loaded_from_database_backgrounds_[slug];
-    queries.push_back(std::move(promise));
-    if (queries.size() == 1) {
-      LOG(INFO) << "Trying to load background " << slug << " from database";
-      G()->td_db()->get_sqlite_pmc()->get(
-          get_background_name_database_key(slug), PromiseCreator::lambda([slug](string value) mutable {
-            send_closure(G()->background_manager(), &BackgroundManager::on_load_background_from_database,
-                         std::move(slug), std::move(value));
-          }));
-    }
-    return {};
-  }
-
-  reload_background_from_server(BackgroundId(), slug, telegram_api::make_object<telegram_api::inputWallPaperSlug>(slug),
-                                std::move(promise));
-  return {};
-}
-
-void BackgroundManager::on_load_background_from_database(string name, string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto promises_it = being_loaded_from_database_backgrounds_.find(name);
-  CHECK(promises_it != being_loaded_from_database_backgrounds_.end());
-  auto promises = std::move(promises_it->second);
-  CHECK(!promises.empty());
-  being_loaded_from_database_backgrounds_.erase(promises_it);
-
-  loaded_from_database_backgrounds_.insert(name);
-
-  CHECK(!BackgroundType::is_background_name_local(name));
-  if (name_to_background_id_.count(name) == 0 && !value.empty()) {
-    LOG(INFO) << "Successfully loaded background " << name << " of size " << value.size() << " from database";
-    Background background;
-    auto status = log_event_parse(background, value);
-    if (status.is_error() || !background.type.has_file() || !background.file_id.is_valid() ||
-        !background.id.is_valid()) {
-      LOG(ERROR) << "Can't load background " << name << ": " << status << ' ' << format::as_hex_dump<4>(Slice(value));
-    } else {
-      if (background.name != name) {
-        LOG(ERROR) << "Expected background " << name << ", but received " << background.name;
-        name_to_background_id_.emplace(std::move(name), background.id);
-      }
-      add_local_background_to_cache(background);
-      add_background(background, false);
-    }
-  }
-
-  set_promises(promises);
-}
-
-td_api::object_ptr<td_api::updateDefaultBackground> BackgroundManager::get_update_default_background_object(
-    bool for_dark_theme) const {
-  return td_api::make_object<td_api::updateDefaultBackground>(
-      for_dark_theme,
-      get_background_object(set_background_id_[for_dark_theme], for_dark_theme, &set_background_type_[for_dark_theme]));
-}
-
-void BackgroundManager::send_update_default_background(bool for_dark_theme) const {
-  send_closure(G()->td(), &Td::send_update, get_update_default_background_object(for_dark_theme));
-}
-
-Result<FileId> BackgroundManager::prepare_input_file(const tl_object_ptr<td_api::InputFile> &input_file) {
-  TRY_RESULT(file_id, td_->file_manager_->get_input_file_id(FileType::Background, input_file, {}, false, false));
-
-  FileView file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return Status::Error(400, "Can't use encrypted file");
-  }
-  if (!file_view.has_full_local_location() && !file_view.has_generate_location()) {
-    return Status::Error(400, "Need local or generate location to upload background");
-  }
-  return std::move(file_id);
-}
-
-void BackgroundManager::set_max_local_background_id(BackgroundId background_id) {
-  CHECK(background_id.is_local());
-  CHECK(background_id.get() > max_local_background_id_.get());
-  max_local_background_id_ = background_id;
-  G()->td_db()->get_binlog_pmc()->set("max_bg_id", to_string(max_local_background_id_.get()));
-}
-
-BackgroundId BackgroundManager::get_next_local_background_id() {
-  set_max_local_background_id(BackgroundId(max_local_background_id_.get() + 1));
-  return max_local_background_id_;
-}
-
-void BackgroundManager::set_local_background_id(Background &background) {
-  CHECK(!background.name.empty() || background.type != BackgroundType());
-  CHECK(background.has_new_local_id);
-  auto &background_id = local_backgrounds_[background];
-  if (!background_id.is_valid()) {
-    background_id = get_next_local_background_id();
-  }
-  background.id = background_id;
-}
-
-void BackgroundManager::add_local_background_to_cache(const Background &background) {
-  if (!background.has_new_local_id || !background.id.is_local()) {
-    return;
-  }
-  auto &background_id = local_backgrounds_[background];
-  if (!background_id.is_valid()) {
-    background_id = background.id;
-  }
-}
-
-BackgroundId BackgroundManager::add_local_background(const BackgroundType &type) {
-  Background background;
-  background.is_creator = true;
-  background.is_default = false;
-  background.is_dark = type.is_dark();
-  background.type = type;
-  background.name = type.get_link();
-  set_local_background_id(background);
-  add_background(background, true);
-
-  return background.id;
-}
-
-void BackgroundManager::set_background(const td_api::InputBackground *input_background,
-                                       const td_api::BackgroundType *background_type, bool for_dark_theme,
-                                       Promise<td_api::object_ptr<td_api::background>> &&promise) {
-  TRY_RESULT_PROMISE(promise, type, BackgroundType::get_background_type(background_type, 0));
-
-  if (input_background == nullptr) {
-    if (type.has_file() || background_type == nullptr) {
-      return promise.set_error(Status::Error(400, "Input background must be non-empty for the background type"));
-    }
-    if (background_type->get_id() == td_api::backgroundTypeChatTheme::ID) {
-      return promise.set_error(Status::Error(400, "Background type isn't supported"));
-    }
-
-    auto background_id = add_local_background(type);
-    set_background_id(background_id, type, for_dark_theme);
-
-    local_background_ids_[for_dark_theme].insert(local_background_ids_[for_dark_theme].begin(), background_id);
-    save_local_backgrounds(for_dark_theme);
-
-    return promise.set_value(get_background_object(background_id, for_dark_theme, nullptr));
-  }
-
-  switch (input_background->get_id()) {
-    case td_api::inputBackgroundLocal::ID: {
-      if (!type.has_file()) {
-        return promise.set_error(Status::Error(400, "Can't specify local file for the background type"));
-      }
-      CHECK(background_type != nullptr);
-
-      auto background_local = static_cast<const td_api::inputBackgroundLocal *>(input_background);
-      TRY_RESULT_PROMISE(promise, file_id, prepare_input_file(background_local->background_));
-      LOG(INFO) << "Receive file " << file_id << " for input background";
-      CHECK(file_id.is_valid());
-
-      auto it = file_id_to_background_id_.find(file_id);
-      if (it != file_id_to_background_id_.end()) {
-        return set_background(it->second, type, for_dark_theme, std::move(promise));
-      }
-
-      upload_background_file(file_id, type, DialogId(), for_dark_theme, std::move(promise));
-      break;
-    }
-    case td_api::inputBackgroundRemote::ID: {
-      auto background_remote = static_cast<const td_api::inputBackgroundRemote *>(input_background);
-      return set_background(BackgroundId(background_remote->background_id_), std::move(type), for_dark_theme,
-                            std::move(promise));
-    }
-    case td_api::inputBackgroundPrevious::ID:
-      return promise.set_error(Status::Error(400, "Can't use a previous background"));
-    default:
-      UNREACHABLE();
-  }
-}
-
-void BackgroundManager::delete_background(bool for_dark_theme, Promise<Unit> &&promise) {
-  set_background_id(BackgroundId(), BackgroundType(), for_dark_theme);
-  promise.set_value(Unit());
-}
-
-Result<DialogId> BackgroundManager::get_background_dialog(DialogId dialog_id) {
-  TRY_STATUS(td_->dialog_manager_->check_dialog_access(dialog_id, true, AccessRights::Write, "get_background_dialog"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return dialog_id;
-    case DialogType::Chat:
-      return Status::Error(400, "Can't change background in the chat");
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      if (!td_->chat_manager_->get_channel_permissions(channel_id).can_change_info_and_settings_as_administrator()) {
-        return Status::Error(400, "Not enough rights in the chat");
-      }
-      return dialog_id;
-    }
-    case DialogType::SecretChat: {
-      auto user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      if (!user_id.is_valid()) {
-        return Status::Error(400, "Can't access the user");
-      }
-      return DialogId(user_id);
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return DialogId();
-  }
-}
-
-void BackgroundManager::set_dialog_background(DialogId dialog_id, const td_api::InputBackground *input_background,
-                                              const td_api::BackgroundType *background_type, int32 dark_theme_dimming,
-                                              bool for_both, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE_ASSIGN(promise, dialog_id, get_background_dialog(dialog_id));
-
-  TRY_RESULT_PROMISE(promise, type, BackgroundType::get_background_type(background_type, dark_theme_dimming));
-
-  if (input_background == nullptr) {
-    if (type.has_file() || background_type == nullptr) {
-      return promise.set_error(Status::Error(400, "Input background must be non-empty for the background type"));
-    }
-    return send_set_dialog_background_query(dialog_id, telegram_api::make_object<telegram_api::inputWallPaperNoFile>(0),
-                                            type.get_input_wallpaper_settings(), MessageId(), for_both,
-                                            std::move(promise));
-  }
-
-  switch (input_background->get_id()) {
-    case td_api::inputBackgroundLocal::ID: {
-      if (!type.has_file()) {
-        return promise.set_error(Status::Error(400, "Can't specify local file for the background type"));
-      }
-      CHECK(background_type != nullptr);
-
-      auto background_local = static_cast<const td_api::inputBackgroundLocal *>(input_background);
-      TRY_RESULT_PROMISE(promise, file_id, prepare_input_file(background_local->background_));
-      LOG(INFO) << "Receive file " << file_id << " for input background";
-      CHECK(file_id.is_valid());
-
-      auto it = file_id_to_background_id_.find(file_id);
-      if (it != file_id_to_background_id_.end()) {
-        return do_set_dialog_background(dialog_id, it->second, type, for_both, std::move(promise));
-      }
-
-      auto upload_promise =
-          PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, type, for_both, promise = std::move(promise)](
-                                     Result<td_api::object_ptr<td_api::background>> &&result) mutable {
-            if (result.is_error()) {
-              return promise.set_error(result.move_as_error());
-            }
-            send_closure(actor_id, &BackgroundManager::do_set_dialog_background, dialog_id,
-                         BackgroundId(result.ok()->id_), std::move(type), for_both, std::move(promise));
-          });
-      upload_background_file(file_id, type, dialog_id, false, std::move(upload_promise));
-      break;
-    }
-    case td_api::inputBackgroundRemote::ID: {
-      auto background_remote = static_cast<const td_api::inputBackgroundRemote *>(input_background);
-      return do_set_dialog_background(dialog_id, BackgroundId(background_remote->background_id_), std::move(type),
-                                      for_both, std::move(promise));
-    }
-    case td_api::inputBackgroundPrevious::ID: {
-      auto background_previous = static_cast<const td_api::inputBackgroundPrevious *>(input_background);
-      MessageId message_id(background_previous->message_id_);
-      if (!message_id.is_valid() || !message_id.is_server()) {
-        return promise.set_error(Status::Error(400, "Invalid message identifier specified"));
-      }
-      return send_set_dialog_background_query(
-          dialog_id, nullptr, background_type == nullptr ? nullptr : type.get_input_wallpaper_settings(), message_id,
-          for_both, std::move(promise));
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void BackgroundManager::delete_dialog_background(DialogId dialog_id, bool restore_previous, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE_ASSIGN(promise, dialog_id, get_background_dialog(dialog_id));
-  td_->create_handler<SetChatWallPaperQuery>(std::move(promise))
-      ->send(dialog_id, nullptr, nullptr, MessageId(), false, restore_previous);
-}
-
-void BackgroundManager::do_set_dialog_background(DialogId dialog_id, BackgroundId background_id, BackgroundType type,
-                                                 bool for_both, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  const auto *background = get_background(background_id);
-  if (background == nullptr) {
-    return promise.set_error(Status::Error(400, "Background to set not found"));
-  }
-  if (!type.has_file()) {
-    type = background->type;
-  } else if (!background->type.has_equal_type(type)) {
-    return promise.set_error(Status::Error(400, "Background type mismatch"));
-  }
-
-  send_set_dialog_background_query(
-      dialog_id, telegram_api::make_object<telegram_api::inputWallPaper>(background_id.get(), background->access_hash),
-      type.get_input_wallpaper_settings(), MessageId(), for_both, std::move(promise));
-}
-
-void BackgroundManager::send_set_dialog_background_query(
-    DialogId dialog_id, telegram_api::object_ptr<telegram_api::InputWallPaper> input_wallpaper,
-    telegram_api::object_ptr<telegram_api::wallPaperSettings> settings, MessageId old_message_id, bool for_both,
-    Promise<Unit> &&promise) {
-  td_->create_handler<SetChatWallPaperQuery>(std::move(promise))
-      ->send(dialog_id, std::move(input_wallpaper), std::move(settings), old_message_id, for_both, false);
-}
-
-void BackgroundManager::set_background(BackgroundId background_id, BackgroundType type, bool for_dark_theme,
-                                       Promise<td_api::object_ptr<td_api::background>> &&promise) {
-  LOG(INFO) << "Set " << background_id << " with " << type;
-  const auto *background = get_background(background_id);
-  if (background == nullptr) {
-    return promise.set_error(Status::Error(400, "Background to set not found"));
-  }
-  if (!type.has_file()) {
-    type = background->type;
-  } else if (!background->type.has_equal_type(type)) {
-    return promise.set_error(Status::Error(400, "Background type mismatch"));
-  }
-  if (set_background_id_[for_dark_theme] == background_id && set_background_type_[for_dark_theme] == type) {
-    return promise.set_value(get_background_object(background_id, for_dark_theme, nullptr));
-  }
-
-  LOG(INFO) << "Install " << background_id << " with " << type;
-
-  if (!type.has_file()) {
-    set_background_id(background_id, type, for_dark_theme);
-    return promise.set_value(get_background_object(background_id, for_dark_theme, nullptr));
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), background_id, type, for_dark_theme,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    send_closure(actor_id, &BackgroundManager::on_installed_background, background_id, type, for_dark_theme,
-                 std::move(result), std::move(promise));
-  });
-  td_->create_handler<InstallBackgroundQuery>(std::move(query_promise))
-      ->send(telegram_api::make_object<telegram_api::inputWallPaper>(background_id.get(), background->access_hash),
-             type);
-}
-
-void BackgroundManager::on_installed_background(BackgroundId background_id, BackgroundType type, bool for_dark_theme,
-                                                Result<Unit> &&result,
-                                                Promise<td_api::object_ptr<td_api::background>> &&promise) {
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-
-  size_t i;
-  for (i = 0; i < installed_backgrounds_.size(); i++) {
-    if (installed_backgrounds_[i].first == background_id) {
-      installed_backgrounds_[i].second = type;
-      break;
-    }
-  }
-  if (i == installed_backgrounds_.size()) {
-    installed_backgrounds_.insert(installed_backgrounds_.begin(), {background_id, type});
-  }
-  set_background_id(background_id, type, for_dark_theme);
-  promise.set_value(get_background_object(background_id, for_dark_theme, nullptr));
-}
-
-string BackgroundManager::get_background_database_key(bool for_dark_theme) {
-  return for_dark_theme ? "bgd" : "bg";
-}
-
-string BackgroundManager::get_local_backgrounds_database_key(bool for_dark_theme) {
-  return for_dark_theme ? "bgsd" : "bgs";
-}
-
-void BackgroundManager::save_background_id(bool for_dark_theme) {
-  string key = get_background_database_key(for_dark_theme);
-  auto background_id = set_background_id_[for_dark_theme];
-  if (background_id.is_valid()) {
-    const Background *background = get_background(background_id);
-    CHECK(background != nullptr);
-    BackgroundLogEvent log_event{*background, set_background_type_[for_dark_theme]};
-    G()->td_db()->get_binlog_pmc()->set(key, log_event_store(log_event).as_slice().str());
-  } else {
-    G()->td_db()->get_binlog_pmc()->erase(key);
-  }
-}
-
-void BackgroundManager::set_background_id(BackgroundId background_id, const BackgroundType &type, bool for_dark_theme) {
-  if (background_id == set_background_id_[for_dark_theme] && set_background_type_[for_dark_theme] == type) {
-    return;
-  }
-
-  set_background_id_[for_dark_theme] = background_id;
-  set_background_type_[for_dark_theme] = type;
-
-  save_background_id(for_dark_theme);
-  send_update_default_background(for_dark_theme);
-}
-
-void BackgroundManager::save_local_backgrounds(bool for_dark_theme) {
-  string key = get_local_backgrounds_database_key(for_dark_theme);
-  auto &background_ids = local_background_ids_[for_dark_theme];
-  const size_t MAX_LOCAL_BACKGROUNDS = 100;
-  while (background_ids.size() > MAX_LOCAL_BACKGROUNDS) {
-    background_ids.pop_back();
-  }
-  if (!background_ids.empty()) {
-    BackgroundsLogEvent log_event;
-    log_event.backgrounds_ = transform(background_ids, [&](BackgroundId background_id) {
-      const Background *background = get_background(background_id);
-      CHECK(background != nullptr);
-      return *background;
-    });
-    G()->td_db()->get_binlog_pmc()->set(key, log_event_store(log_event).as_slice().str());
-  } else {
-    G()->td_db()->get_binlog_pmc()->erase(key);
-  }
-}
-
-void BackgroundManager::upload_background_file(FileId file_id, const BackgroundType &type, DialogId dialog_id,
-                                               bool for_dark_theme,
-                                               Promise<td_api::object_ptr<td_api::background>> &&promise) {
-  auto file_upload_id = FileUploadId{file_id, FileManager::get_internal_upload_id()};
-  CHECK(file_upload_id.is_valid());
-  bool is_inserted = being_uploaded_files_
-                         .emplace(file_upload_id, UploadedFileInfo(type, dialog_id, for_dark_theme, std::move(promise)))
-                         .second;
-  CHECK(is_inserted);
-  LOG(INFO) << "Ask to upload background " << file_upload_id;
-  td_->file_manager_->upload(file_upload_id, upload_background_file_callback_, 1, 0);
-}
-
-void BackgroundManager::on_upload_background_file(FileUploadId file_upload_id,
-                                                  telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Background " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-
-  auto type = it->second.type_;
-  auto dialog_id = it->second.dialog_id_;
-  auto for_dark_theme = it->second.for_dark_theme_;
-  auto promise = std::move(it->second.promise_);
-
-  being_uploaded_files_.erase(it);
-
-  do_upload_background_file(file_upload_id, type, dialog_id, for_dark_theme, std::move(input_file), std::move(promise));
-}
-
-void BackgroundManager::on_upload_background_file_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(WARNING) << "Background " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-
-  auto promise = std::move(it->second.promise_);
-
-  being_uploaded_files_.erase(it);
-
-  promise.set_error(Status::Error(status.code() > 0 ? status.code() : 500,
-                                  status.message()));  // TODO CHECK that status has always a code
-}
-
-void BackgroundManager::do_upload_background_file(FileUploadId file_upload_id, const BackgroundType &type,
-                                                  DialogId dialog_id, bool for_dark_theme,
-                                                  telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-                                                  Promise<td_api::object_ptr<td_api::background>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (input_file == nullptr) {
-    FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-    auto it = file_id_to_background_id_.find(file_view.get_main_file_id());
-    if (it != file_id_to_background_id_.end()) {
-      if (dialog_id.is_valid()) {
-        return promise.set_value(get_background_object(it->second, for_dark_theme, nullptr));
-      }
-      return set_background(it->second, type, for_dark_theme, std::move(promise));
-    }
-    return promise.set_error(Status::Error(500, "Failed to reupload background"));
-  }
-
-  td_->create_handler<UploadBackgroundQuery>(std::move(promise))
-      ->send(file_upload_id, std::move(input_file), type, dialog_id, for_dark_theme);
-}
-
-void BackgroundManager::on_uploaded_background_file(FileUploadId file_upload_id, const BackgroundType &type,
-                                                    DialogId dialog_id, bool for_dark_theme,
-                                                    telegram_api::object_ptr<telegram_api::WallPaper> wallpaper,
-                                                    Promise<td_api::object_ptr<td_api::background>> &&promise) {
-  CHECK(wallpaper != nullptr);
-
-  auto added_background = on_get_background(BackgroundId(), string(), std::move(wallpaper), true, false);
-  auto background_id = added_background.first;
-  if (!background_id.is_valid()) {
-    td_->file_manager_->cancel_upload(file_upload_id);
-    return promise.set_error(Status::Error(500, "Receive wrong uploaded background"));
-  }
-  LOG_IF(ERROR, added_background.second != type)
-      << "Type of uploaded background has changed from " << type << " to " << added_background.second;
-
-  const auto *background = get_background(background_id);
-  CHECK(background != nullptr);
-  if (!background->file_id.is_valid()) {
-    td_->file_manager_->cancel_upload(file_upload_id);
-    return promise.set_error(Status::Error(500, "Receive wrong uploaded background without file"));
-  }
-  LOG_STATUS(td_->file_manager_->merge(background->file_id, file_upload_id.get_file_id()));
-  td_->file_manager_->cancel_upload(file_upload_id);
-  if (!dialog_id.is_valid()) {
-    set_background_id(background_id, type, for_dark_theme);
-  }
-  promise.set_value(get_background_object(background_id, for_dark_theme, nullptr));
-}
-
-void BackgroundManager::remove_background(BackgroundId background_id, Promise<Unit> &&promise) {
-  const auto *background = get_background(background_id);
-  if (background == nullptr) {
-    return promise.set_error(Status::Error(400, "Background not found"));
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), background_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        send_closure(actor_id, &BackgroundManager::on_removed_background, background_id, std::move(result),
-                     std::move(promise));
-      });
-
-  if (!background->type.has_file()) {
-    if (!background->id.is_local()) {
-      return td_->create_handler<UnsaveBackgroundQuery>(std::move(query_promise))
-          ->send(telegram_api::make_object<telegram_api::inputWallPaperNoFile>(background_id.get()));
-    } else {
-      return query_promise.set_value(Unit());
-    }
-  }
-
-  td_->create_handler<UnsaveBackgroundQuery>(std::move(query_promise))
-      ->send(telegram_api::make_object<telegram_api::inputWallPaper>(background_id.get(), background->access_hash));
-}
-
-void BackgroundManager::on_removed_background(BackgroundId background_id, Result<Unit> &&result,
-                                              Promise<Unit> &&promise) {
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-  td::remove_if(installed_backgrounds_,
-                [background_id](const auto &background) { return background.first == background_id; });
-  if (background_id == set_background_id_[0]) {
-    set_background_id(BackgroundId(), BackgroundType(), false);
-  }
-  if (background_id == set_background_id_[1]) {
-    set_background_id(BackgroundId(), BackgroundType(), true);
-  }
-  if (background_id.is_local()) {
-    if (td::remove(local_background_ids_[0], background_id)) {
-      save_local_backgrounds(false);
-    }
-    if (td::remove(local_background_ids_[1], background_id)) {
-      save_local_backgrounds(true);
-    }
-  }
-  promise.set_value(Unit());
-}
-
-void BackgroundManager::reset_backgrounds(Promise<Unit> &&promise) {
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-        send_closure(actor_id, &BackgroundManager::on_reset_background, std::move(result), std::move(promise));
-      });
-
-  td_->create_handler<ResetBackgroundsQuery>(std::move(query_promise))->send();
-}
-
-void BackgroundManager::on_reset_background(Result<Unit> &&result, Promise<Unit> &&promise) {
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-  installed_backgrounds_.clear();
-  set_background_id(BackgroundId(), BackgroundType(), false);
-  set_background_id(BackgroundId(), BackgroundType(), true);
-  if (!local_background_ids_[0].empty()) {
-    local_background_ids_[0].clear();
-    save_local_backgrounds(false);
-  }
-  if (!local_background_ids_[1].empty()) {
-    local_background_ids_[1].clear();
-    save_local_backgrounds(true);
-  }
-
-  promise.set_value(Unit());
-}
-
-void BackgroundManager::add_background(const Background &background, bool replace_type) {
-  LOG(INFO) << "Add " << background.id << " of " << background.type;
-
-  CHECK(background.id.is_valid());
-  auto &result_ptr = backgrounds_[background.id];
-  if (result_ptr == nullptr) {
-    result_ptr = make_unique<Background>();
-  }
-  auto *result = result_ptr.get();
-
-  FileSourceId file_source_id;
-  auto it = background_id_to_file_source_id_.find(background.id);
-  if (it != background_id_to_file_source_id_.end()) {
-    CHECK(!result->id.is_valid());
-    file_source_id = it->second.second;
-    background_id_to_file_source_id_.erase(it);
-  }
-
-  if (!result->id.is_valid()) {
-    result->id = background.id;
-    result->type = background.type;
-  } else {
-    CHECK(result->id == background.id);
-    if (replace_type) {
-      result->type = background.type;
-    }
-  }
-  result->access_hash = background.access_hash;
-  result->is_creator = background.is_creator;
-  result->is_default = background.is_default;
-  result->is_dark = background.is_dark;
-
-  if (result->name != background.name) {
-    if (!result->name.empty()) {
-      LOG(ERROR) << "Background name has changed from " << result->name << " to " << background.name;
-      // keep correspondence from previous name to background ID
-      // it will not harm, because background names can't be reassigned
-      // name_to_background_id_.erase(result->name);
-    }
-
-    result->name = background.name;
-
-    if (!BackgroundType::is_background_name_local(result->name)) {
-      name_to_background_id_.emplace(result->name, result->id);
-      loaded_from_database_backgrounds_.erase(result->name);  // don't needed anymore
-    }
-  }
-
-  if (result->file_id != background.file_id) {
-    if (result->file_id.is_valid()) {
-      if (!background.file_id.is_valid() ||
-          td_->file_manager_->get_file_view(result->file_id).get_main_file_id() !=
-              td_->file_manager_->get_file_view(background.file_id).get_main_file_id()) {
-        LOG(ERROR) << "Background file has changed from " << result->file_id << " to " << background.file_id;
-        file_id_to_background_id_.erase(result->file_id);
-        result->file_source_id = FileSourceId();
-      }
-      CHECK(!file_source_id.is_valid());
-    }
-    if (file_source_id.is_valid()) {
-      result->file_source_id = file_source_id;
-    }
-
-    result->file_id = background.file_id;
-
-    if (result->file_id.is_valid()) {
-      if (!result->file_source_id.is_valid()) {
-        result->file_source_id =
-            td_->file_reference_manager_->create_background_file_source(result->id, result->access_hash);
-      }
-      for (auto file_id : Document(Document::Type::General, result->file_id).get_file_ids(td_)) {
-        td_->file_manager_->add_file_source(file_id, result->file_source_id, "add_background");
-      }
-
-      file_id_to_background_id_.emplace(result->file_id, result->id);
-    }
-  } else {
-    // if file_source_id is valid, then this is a new background with result->file_id == FileId()
-    // then background.file_id == FileId(), then this is a fill background, which can't have file_source_id
-    CHECK(!file_source_id.is_valid());
-  }
-}
-
-BackgroundManager::Background *BackgroundManager::get_background_ref(BackgroundId background_id) {
-  auto p = backgrounds_.find(background_id);
-  if (p == backgrounds_.end()) {
-    return nullptr;
-  } else {
-    return p->second.get();
-  }
-}
-
-const BackgroundManager::Background *BackgroundManager::get_background(BackgroundId background_id) const {
-  auto p = backgrounds_.find(background_id);
-  if (p == backgrounds_.end()) {
-    return nullptr;
-  } else {
-    return p->second.get();
-  }
-}
-
-string BackgroundManager::get_background_name_database_key(const string &name) {
-  return PSTRING() << "bgn" << name;
-}
-
-std::pair<BackgroundId, BackgroundType> BackgroundManager::on_get_background(
-    BackgroundId expected_background_id, const string &expected_background_name,
-    telegram_api::object_ptr<telegram_api::WallPaper> wallpaper_ptr, bool replace_type, bool allow_empty) {
-  if (wallpaper_ptr == nullptr) {
-    if (!allow_empty) {
-      LOG(ERROR) << "Receive unexpected empty background";
-    }
-    return {};
-  }
-
-  if (wallpaper_ptr->get_id() == telegram_api::wallPaperNoFile::ID) {
-    auto wallpaper = move_tl_object_as<telegram_api::wallPaperNoFile>(wallpaper_ptr);
-
-    if (wallpaper->settings_ == nullptr) {
-      if (!allow_empty) {
-        LOG(ERROR) << "Receive wallPaperNoFile without settings: " << to_string(wallpaper);
-      }
-      return {};
-    }
-
-    auto background_id = BackgroundId(wallpaper->id_);
-    if (background_id.is_local()) {
-      LOG(ERROR) << "Receive " << to_string(wallpaper);
-      return {};
-    }
-
-    Background background;
-    background.id = background_id;
-    background.is_creator = false;
-    background.is_default = wallpaper->default_;
-    background.is_dark = wallpaper->dark_;
-    background.type = BackgroundType(true, false, std::move(wallpaper->settings_));
-    background.name = background.type.get_link();
-    if (!background.id.is_valid()) {
-      set_local_background_id(background);
-    }
-    add_background(background, replace_type);
-
-    return {background.id, background.type};
-  }
-
-  auto wallpaper = move_tl_object_as<telegram_api::wallPaper>(wallpaper_ptr);
-  auto background_id = BackgroundId(wallpaper->id_);
-  if (!background_id.is_valid() || background_id.is_local() ||
-      BackgroundType::is_background_name_local(wallpaper->slug_)) {
-    LOG(ERROR) << "Receive " << to_string(wallpaper);
-    return {};
-  }
-  if (expected_background_id.is_valid() && background_id != expected_background_id) {
-    LOG(ERROR) << "Expected " << expected_background_id << ", but receive " << to_string(wallpaper);
-  }
-
-  int32 document_id = wallpaper->document_->get_id();
-  if (document_id == telegram_api::documentEmpty::ID) {
-    if (!allow_empty) {
-      LOG(ERROR) << "Receive " << to_string(wallpaper);
-    }
-    return {};
-  }
-  CHECK(document_id == telegram_api::document::ID);
-
-  bool is_pattern = wallpaper->pattern_;
-
-  Document document = td_->documents_manager_->on_get_document(
-      telegram_api::move_object_as<telegram_api::document>(wallpaper->document_), DialogId(), false, nullptr,
-      Document::Type::General, is_pattern ? DocumentsManager::Subtype::Pattern : DocumentsManager::Subtype::Background);
-  if (!document.file_id.is_valid()) {
-    LOG(ERROR) << "Receive wrong document in " << to_string(wallpaper);
-    return {};
-  }
-  CHECK(document.type == Document::Type::General);  // guaranteed by is_background parameter to on_get_document
-
-  Background background;
-  background.id = background_id;
-  background.access_hash = wallpaper->access_hash_;
-  background.is_creator = wallpaper->creator_;
-  background.is_default = wallpaper->default_;
-  background.is_dark = wallpaper->dark_;
-  background.type = BackgroundType(false, is_pattern, std::move(wallpaper->settings_));
-  background.name = std::move(wallpaper->slug_);
-  background.file_id = document.file_id;
-  add_background(background, replace_type);
-
-  if (!expected_background_name.empty() && background.name != expected_background_name) {
-    LOG(ERROR) << "Expected background " << expected_background_name << ", but receive " << background.name;
-    name_to_background_id_.emplace(expected_background_name, background_id);
-  }
-
-  if (G()->use_sqlite_pmc()) {
-    LOG(INFO) << "Save " << background_id << " to database with name " << background.name;
-    CHECK(!BackgroundType::is_background_name_local(background.name));
-    G()->td_db()->get_sqlite_pmc()->set(get_background_name_database_key(background.name),
-                                        log_event_store(background).as_slice().str(), Auto());
-  }
-
-  return {background_id, background.type};
-}
-
-void BackgroundManager::on_get_backgrounds(Result<telegram_api::object_ptr<telegram_api::account_WallPapers>> result) {
-  auto promises = std::move(pending_get_backgrounds_queries_);
-  CHECK(!promises.empty());
-  reset_to_empty(pending_get_backgrounds_queries_);
-
-  if (result.is_error()) {
-    // do not clear installed_backgrounds_
-
-    auto error = result.move_as_error();
-    for (auto &promise : promises) {
-      promise.second.set_error(error.clone());
-    }
-    return;
-  }
-
-  auto wallpapers_ptr = result.move_as_ok();
-  LOG(INFO) << "Receive " << to_string(wallpapers_ptr);
-  if (wallpapers_ptr->get_id() == telegram_api::account_wallPapersNotModified::ID) {
-    for (auto &promise : promises) {
-      promise.second.set_value(get_backgrounds_object(promise.first));
-    }
-    return;
-  }
-
-  installed_backgrounds_.clear();
-  auto wallpapers = telegram_api::move_object_as<telegram_api::account_wallPapers>(wallpapers_ptr);
-  for (auto &wallpaper : wallpapers->wallpapers_) {
-    auto background = on_get_background(BackgroundId(), string(), std::move(wallpaper), false, false);
-    if (background.first.is_valid()) {
-      installed_backgrounds_.push_back(std::move(background));
-    }
-  }
-
-  for (auto &promise : promises) {
-    promise.second.set_value(get_backgrounds_object(promise.first));
-  }
-}
-
-td_api::object_ptr<td_api::background> BackgroundManager::get_background_object(BackgroundId background_id,
-                                                                                bool for_dark_theme,
-                                                                                const BackgroundType *type) const {
-  const auto *background = get_background(background_id);
-  if (background == nullptr) {
-    return nullptr;
-  }
-  if (type == nullptr) {
-    type = &background->type;
-    // first check another set_background_id to get correct type if both backgrounds are the same
-    if (background_id == set_background_id_[1 - static_cast<int>(for_dark_theme)]) {
-      type = &set_background_type_[1 - static_cast<int>(for_dark_theme)];
-    }
-    if (background_id == set_background_id_[for_dark_theme]) {
-      type = &set_background_type_[for_dark_theme];
-    }
-  }
-  return td_api::make_object<td_api::background>(
-      background->id.get(), background->is_default, background->is_dark, background->name,
-      td_->documents_manager_->get_document_object(background->file_id, PhotoFormat::Png),
-      type->get_background_type_object());
-}
-
-td_api::object_ptr<td_api::backgrounds> BackgroundManager::get_backgrounds_object(bool for_dark_theme) const {
-  auto backgrounds = transform(installed_backgrounds_,
-                               [this, for_dark_theme](const std::pair<BackgroundId, BackgroundType> &background) {
-                                 return get_background_object(background.first, for_dark_theme, &background.second);
-                               });
-  auto background_id = set_background_id_[for_dark_theme];
-  bool have_background = false;
-  for (const auto &background : installed_backgrounds_) {
-    if (background_id == background.first) {
-      have_background = true;
-      break;
-    }
-  }
-  if (background_id.is_valid() && !have_background) {
-    backgrounds.push_back(get_background_object(background_id, for_dark_theme, nullptr));
-  }
-  for (auto local_background_id : local_background_ids_[for_dark_theme]) {
-    if (local_background_id != background_id) {
-      backgrounds.push_back(get_background_object(local_background_id, for_dark_theme, nullptr));
-    }
-  }
-  std::stable_sort(backgrounds.begin(), backgrounds.end(),
-                   [background_id, for_dark_theme](const td_api::object_ptr<td_api::background> &lhs,
-                                                   const td_api::object_ptr<td_api::background> &rhs) {
-                     auto get_order = [background_id,
-                                       for_dark_theme](const td_api::object_ptr<td_api::background> &background) {
-                       if (background->id_ == background_id.get()) {
-                         return 0;
-                       }
-                       int theme_score = background->is_dark_ == for_dark_theme ? 0 : 1;
-                       int local_score = BackgroundId(background->id_).is_local() ? 0 : 2;
-                       return 1 + local_score + theme_score;
-                     };
-                     return get_order(lhs) < get_order(rhs);
-                   });
-  return td_api::make_object<td_api::backgrounds>(std::move(backgrounds));
-}
-
-FileSourceId BackgroundManager::get_background_file_source_id(BackgroundId background_id, int64 access_hash) {
-  if (!background_id.is_valid()) {
-    return FileSourceId();
-  }
-
-  Background *background = get_background_ref(background_id);
-  if (background != nullptr) {
-    if (!background->file_source_id.is_valid()) {
-      background->file_source_id =
-          td_->file_reference_manager_->create_background_file_source(background_id, background->access_hash);
-    }
-    return background->file_source_id;
-  }
-
-  auto &result = background_id_to_file_source_id_[background_id];
-  if (result.first == 0) {
-    result.first = access_hash;
-  }
-  if (!result.second.is_valid()) {
-    result.second = td_->file_reference_manager_->create_background_file_source(background_id, result.first);
-  }
-  return result.second;
-}
-
-void BackgroundManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  updates.push_back(get_update_default_background_object(false));
-  updates.push_back(get_update_default_background_object(true));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundManager.h b/third-party/td/td/td/telegram/BackgroundManager.h
deleted file mode 100644
index 9f36d01fa1..0000000000
--- a/third-party/td/td/td/telegram/BackgroundManager.h
+++ /dev/null
@@ -1,243 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BackgroundId.h"
-#include "td/telegram/BackgroundType.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class BackgroundManager final : public Actor {
- public:
-  BackgroundManager(Td *td, ActorShared<> parent);
-
-  void get_backgrounds(bool for_dark_theme, Promise<td_api::object_ptr<td_api::backgrounds>> &&promise);
-
-  void reload_background(BackgroundId background_id, int64 access_hash, Promise<Unit> &&promise);
-
-  std::pair<BackgroundId, BackgroundType> search_background(const string &name, Promise<Unit> &&promise);
-
-  void set_background(const td_api::InputBackground *input_background, const td_api::BackgroundType *background_type,
-                      bool for_dark_theme, Promise<td_api::object_ptr<td_api::background>> &&promise);
-
-  void delete_background(bool for_dark_theme, Promise<Unit> &&promise);
-
-  void remove_background(BackgroundId background_id, Promise<Unit> &&promise);
-
-  void reset_backgrounds(Promise<Unit> &&promise);
-
-  void set_dialog_background(DialogId dialog_id, const td_api::InputBackground *input_background,
-                             const td_api::BackgroundType *background_type, int32 dark_theme_dimming, bool for_both,
-                             Promise<Unit> &&promise);
-
-  void delete_dialog_background(DialogId dialog_id, bool restore_previous, Promise<Unit> &&promise);
-
-  td_api::object_ptr<td_api::background> get_background_object(BackgroundId background_id, bool for_dark_theme,
-                                                               const BackgroundType *type) const;
-
-  std::pair<BackgroundId, BackgroundType> on_get_background(
-      BackgroundId expected_background_id, const string &expected_background_name,
-      telegram_api::object_ptr<telegram_api::WallPaper> wallpaper_ptr, bool replace_type, bool allow_empty);
-
-  FileSourceId get_background_file_source_id(BackgroundId background_id, int64 access_hash);
-
-  void on_uploaded_background_file(FileUploadId file_upload_id, const BackgroundType &type, DialogId dialog_id,
-                                   bool for_dark_theme, telegram_api::object_ptr<telegram_api::WallPaper> wallpaper,
-                                   Promise<td_api::object_ptr<td_api::background>> &&promise);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
-  void store_background(BackgroundId background_id, LogEventStorerCalcLength &storer);
-
-  void store_background(BackgroundId background_id, LogEventStorerUnsafe &storer);
-
-  void parse_background(BackgroundId &background_id, LogEventParser &parser);
-
- private:
-  struct Background {
-    BackgroundId id;
-    int64 access_hash = 0;
-    string name;
-    FileId file_id;
-    bool is_creator = false;
-    bool is_default = false;
-    bool is_dark = false;
-    bool has_new_local_id = true;
-    BackgroundType type;
-    FileSourceId file_source_id;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct LocalBackgroundHash {
-    uint32 operator()(const Background &background) const {
-      return Hash<string>()(background.name);
-    }
-  };
-
-  struct LocalBackgroundEquals {
-    bool operator()(const Background &lhs, const Background &rhs) const {
-      return lhs.name == rhs.name && lhs.type == rhs.type && lhs.is_creator == rhs.is_creator &&
-             lhs.is_default == rhs.is_default && lhs.is_dark == rhs.is_dark;
-    }
-  };
-
-  class BackgroundLogEvent;
-  class BackgroundsLogEvent;
-
-  class UploadBackgroundFileCallback;
-
-  void start_up() final;
-
-  void tear_down() final;
-
-  static string get_background_database_key(bool for_dark_theme);
-
-  static string get_local_backgrounds_database_key(bool for_dark_theme);
-
-  void save_background_id(bool for_dark_theme);
-
-  void save_local_backgrounds(bool for_dark_theme);
-
-  void reload_background_from_server(BackgroundId background_id, const string &background_name,
-                                     telegram_api::object_ptr<telegram_api::InputWallPaper> &&input_wallpaper,
-                                     Promise<Unit> &&promise) const;
-
-  td_api::object_ptr<td_api::updateDefaultBackground> get_update_default_background_object(bool for_dark_theme) const;
-
-  td_api::object_ptr<td_api::backgrounds> get_backgrounds_object(bool for_dark_theme) const;
-
-  void send_update_default_background(bool for_dark_theme) const;
-
-  void set_max_local_background_id(BackgroundId background_id);
-
-  BackgroundId get_next_local_background_id();
-
-  void set_local_background_id(Background &background);
-
-  void add_local_background_to_cache(const Background &background);
-
-  BackgroundId add_local_background(const BackgroundType &type);
-
-  void add_background(const Background &background, bool replace_type);
-
-  Background *get_background_ref(BackgroundId background_id);
-
-  const Background *get_background(BackgroundId background_id) const;
-
-  static string get_background_name_database_key(const string &name);
-
-  void on_load_background_from_database(string name, string value);
-
-  void on_get_backgrounds(Result<telegram_api::object_ptr<telegram_api::account_WallPapers>> result);
-
-  Result<FileId> prepare_input_file(const tl_object_ptr<td_api::InputFile> &input_file);
-
-  Result<DialogId> get_background_dialog(DialogId dialog_id);
-
-  void do_set_dialog_background(DialogId dialog_id, BackgroundId background_id, BackgroundType type, bool for_both,
-                                Promise<Unit> &&promise);
-
-  void send_set_dialog_background_query(DialogId dialog_id,
-                                        telegram_api::object_ptr<telegram_api::InputWallPaper> input_wallpaper,
-                                        telegram_api::object_ptr<telegram_api::wallPaperSettings> settings,
-                                        MessageId old_message_id, bool for_both, Promise<Unit> &&promise);
-
-  void set_background(BackgroundId background_id, BackgroundType type, bool for_dark_theme,
-                      Promise<td_api::object_ptr<td_api::background>> &&promise);
-
-  void on_installed_background(BackgroundId background_id, BackgroundType type, bool for_dark_theme,
-                               Result<Unit> &&result, Promise<td_api::object_ptr<td_api::background>> &&promise);
-
-  void set_background_id(BackgroundId background_id, const BackgroundType &type, bool for_dark_theme);
-
-  void on_removed_background(BackgroundId background_id, Result<Unit> &&result, Promise<Unit> &&promise);
-
-  void on_reset_background(Result<Unit> &&result, Promise<Unit> &&promise);
-
-  void upload_background_file(FileId file_id, const BackgroundType &type, DialogId dialog_id, bool for_dark_theme,
-                              Promise<td_api::object_ptr<td_api::background>> &&promise);
-
-  void on_upload_background_file(FileUploadId file_upload_id,
-                                 telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_background_file_error(FileUploadId file_upload_id, Status status);
-
-  void do_upload_background_file(FileUploadId file_upload_id, const BackgroundType &type, DialogId dialog_id,
-                                 bool for_dark_theme, telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-                                 Promise<td_api::object_ptr<td_api::background>> &&promise);
-
-  FlatHashMap<BackgroundId, unique_ptr<Background>, BackgroundIdHash> backgrounds_;
-
-  FlatHashMap<BackgroundId, std::pair<int64, FileSourceId>, BackgroundIdHash>
-      background_id_to_file_source_id_;  // background_id -> [access_hash, file_source_id]
-
-  FlatHashMap<string, BackgroundId> name_to_background_id_;
-
-  FlatHashMap<FileId, BackgroundId, FileIdHash> file_id_to_background_id_;
-
-  FlatHashSet<string> loaded_from_database_backgrounds_;
-  FlatHashMap<string, vector<Promise<Unit>>> being_loaded_from_database_backgrounds_;
-
-  BackgroundId set_background_id_[2];
-  BackgroundType set_background_type_[2];
-
-  vector<std::pair<BackgroundId, BackgroundType>> installed_backgrounds_;
-
-  vector<std::pair<bool, Promise<td_api::object_ptr<td_api::backgrounds>>>> pending_get_backgrounds_queries_;
-
-  std::shared_ptr<UploadBackgroundFileCallback> upload_background_file_callback_;
-
-  struct UploadedFileInfo {
-    BackgroundType type_;
-    DialogId dialog_id_;
-    bool for_dark_theme_;
-    Promise<td_api::object_ptr<td_api::background>> promise_;
-
-    UploadedFileInfo(BackgroundType type, DialogId dialog_id, bool for_dark_theme,
-                     Promise<td_api::object_ptr<td_api::background>> &&promise)
-        : type_(type), dialog_id_(dialog_id), for_dark_theme_(for_dark_theme), promise_(std::move(promise)) {
-    }
-  };
-  FlatHashMap<FileUploadId, UploadedFileInfo, FileUploadIdHash> being_uploaded_files_;
-
-  FlatHashMap<Background, BackgroundId, LocalBackgroundHash, LocalBackgroundEquals> local_backgrounds_;
-
-  BackgroundId max_local_background_id_;
-  vector<BackgroundId> local_background_ids_[2];
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundType.cpp b/third-party/td/td/td/telegram/BackgroundType.cpp
deleted file mode 100644
index 48684e4b0c..0000000000
--- a/third-party/td/td/td/telegram/BackgroundType.cpp
+++ /dev/null
@@ -1,501 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BackgroundType.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-static string get_color_hex_string(int32 color) {
-  string result;
-  for (int i = 20; i >= 0; i -= 4) {
-    result += "0123456789abcdef"[(color >> i) & 0xF];
-  }
-  return result;
-}
-
-static bool is_valid_color(int32 color) {
-  return 0 <= color && color <= 0xFFFFFF;
-}
-
-static bool validate_alpha_color(int32 &color) {
-  if (-0x1000000 <= color && color <= 0xFFFFFF) {
-    color &= 0xFFFFFF;
-    return true;
-  }
-  color = 0;
-  return false;
-}
-
-static bool is_valid_rotation_angle(int32 rotation_angle) {
-  return 0 <= rotation_angle && rotation_angle < 360 && rotation_angle % 45 == 0;
-}
-
-static bool is_valid_intensity(int32 intensity, bool allow_negative) {
-  return (allow_negative ? -100 : 0) <= intensity && intensity <= 100;
-}
-
-BackgroundFill::BackgroundFill(const telegram_api::wallPaperSettings *settings) {
-  if (settings == nullptr) {
-    return;
-  }
-
-  auto flags = settings->flags_;
-  if ((flags & telegram_api::wallPaperSettings::EMOTICON_MASK) != 0) {
-    LOG(ERROR) << "Receive filled background with " << to_string(*settings);
-  }
-  if ((flags & telegram_api::wallPaperSettings::BACKGROUND_COLOR_MASK) != 0) {
-    top_color_ = settings->background_color_;
-    if (!validate_alpha_color(top_color_)) {
-      LOG(ERROR) << "Receive " << to_string(*settings);
-    }
-  }
-  if ((flags & telegram_api::wallPaperSettings::FOURTH_BACKGROUND_COLOR_MASK) != 0 ||
-      (flags & telegram_api::wallPaperSettings::THIRD_BACKGROUND_COLOR_MASK) != 0) {
-    bottom_color_ = settings->second_background_color_;
-    if (!validate_alpha_color(bottom_color_)) {
-      LOG(ERROR) << "Receive " << to_string(*settings);
-    }
-    third_color_ = settings->third_background_color_;
-    if (!validate_alpha_color(third_color_)) {
-      LOG(ERROR) << "Receive " << to_string(*settings);
-    }
-    if ((flags & telegram_api::wallPaperSettings::FOURTH_BACKGROUND_COLOR_MASK) != 0) {
-      fourth_color_ = settings->fourth_background_color_;
-      if (!validate_alpha_color(fourth_color_)) {
-        LOG(ERROR) << "Receive " << to_string(*settings);
-      }
-    }
-  } else if ((flags & telegram_api::wallPaperSettings::SECOND_BACKGROUND_COLOR_MASK) != 0) {
-    bottom_color_ = settings->second_background_color_;
-    if (!validate_alpha_color(bottom_color_)) {
-      LOG(ERROR) << "Receive " << to_string(*settings);
-    }
-
-    rotation_angle_ = settings->rotation_;
-    if (!is_valid_rotation_angle(rotation_angle_)) {
-      LOG(ERROR) << "Receive " << to_string(*settings);
-      rotation_angle_ = 0;
-    }
-  } else {
-    bottom_color_ = top_color_;
-  }
-  if (get_type() != Type::Gradient) {
-    rotation_angle_ = 0;
-  }
-}
-
-Result<BackgroundFill> BackgroundFill::get_background_fill(const td_api::BackgroundFill *fill) {
-  if (fill == nullptr) {
-    return Status::Error(400, "Background fill info must be non-empty");
-  }
-  switch (fill->get_id()) {
-    case td_api::backgroundFillSolid::ID: {
-      auto solid = static_cast<const td_api::backgroundFillSolid *>(fill);
-      if (!is_valid_color(solid->color_)) {
-        return Status::Error(400, "Invalid solid fill color value");
-      }
-      return BackgroundFill(solid->color_);
-    }
-    case td_api::backgroundFillGradient::ID: {
-      auto gradient = static_cast<const td_api::backgroundFillGradient *>(fill);
-      if (!is_valid_color(gradient->top_color_)) {
-        return Status::Error(400, "Invalid top gradient color value");
-      }
-      if (!is_valid_color(gradient->bottom_color_)) {
-        return Status::Error(400, "Invalid bottom gradient color value");
-      }
-      if (!is_valid_rotation_angle(gradient->rotation_angle_)) {
-        return Status::Error(400, "Invalid rotation angle value");
-      }
-      return BackgroundFill(gradient->top_color_, gradient->bottom_color_, gradient->rotation_angle_);
-    }
-    case td_api::backgroundFillFreeformGradient::ID: {
-      auto freeform = static_cast<const td_api::backgroundFillFreeformGradient *>(fill);
-      if (freeform->colors_.size() != 3 && freeform->colors_.size() != 4) {
-        return Status::Error(400, "Wrong number of gradient colors");
-      }
-      for (auto &color : freeform->colors_) {
-        if (!is_valid_color(color)) {
-          return Status::Error(400, "Invalid freeform gradient color value");
-        }
-      }
-      return BackgroundFill(freeform->colors_[0], freeform->colors_[1], freeform->colors_[2],
-                            freeform->colors_.size() == 3 ? -1 : freeform->colors_[3]);
-    }
-    default:
-      UNREACHABLE();
-      return {};
-  }
-}
-
-Result<BackgroundFill> BackgroundFill::get_background_fill(Slice name) {
-  name = name.substr(0, name.find('#'));
-
-  Slice parameters;
-  auto parameters_pos = name.find('?');
-  if (parameters_pos != Slice::npos) {
-    parameters = name.substr(parameters_pos + 1);
-    name = name.substr(0, parameters_pos);
-  }
-
-  auto get_color = [](Slice color_string) -> Result<int32> {
-    auto r_color = hex_to_integer_safe<uint32>(url_decode(color_string, true));
-    if (r_color.is_error() || color_string.size() > 6) {
-      return Status::Error(400, "WALLPAPER_INVALID");
-    }
-    return static_cast<int32>(r_color.ok());
-  };
-
-  size_t hyphen_pos = name.find('-');
-  if (name.find('~') < name.size()) {
-    vector<Slice> color_strings = full_split(name, '~');
-    CHECK(color_strings.size() >= 2);
-    if (color_strings.size() == 2) {
-      hyphen_pos = color_strings[0].size();
-    } else {
-      if (color_strings.size() > 4) {
-        return Status::Error(400, "WALLPAPER_INVALID");
-      }
-
-      TRY_RESULT(first_color, get_color(color_strings[0]));
-      TRY_RESULT(second_color, get_color(color_strings[1]));
-      TRY_RESULT(third_color, get_color(color_strings[2]));
-      int32 fourth_color = -1;
-      if (color_strings.size() == 4) {
-        TRY_RESULT_ASSIGN(fourth_color, get_color(color_strings[3]));
-      }
-      return BackgroundFill(first_color, second_color, third_color, fourth_color);
-    }
-  }
-
-  if (hyphen_pos < name.size()) {
-    TRY_RESULT(top_color, get_color(name.substr(0, hyphen_pos)));
-    TRY_RESULT(bottom_color, get_color(name.substr(hyphen_pos + 1)));
-    int32 rotation_angle = 0;
-
-    Slice prefix("rotation=");
-    if (begins_with(parameters, prefix)) {
-      rotation_angle = to_integer<int32>(url_decode(parameters.substr(prefix.size()), true));
-      if (!is_valid_rotation_angle(rotation_angle)) {
-        rotation_angle = 0;
-      }
-    }
-
-    return BackgroundFill(top_color, bottom_color, rotation_angle);
-  }
-
-  TRY_RESULT(color, get_color(name));
-  return BackgroundFill(color);
-}
-
-string BackgroundFill::get_link(bool is_first) const {
-  switch (get_type()) {
-    case Type::Solid:
-      return get_color_hex_string(top_color_);
-    case Type::Gradient:
-      return PSTRING() << get_color_hex_string(top_color_) << '-' << get_color_hex_string(bottom_color_)
-                       << (is_first ? '?' : '&') << "rotation=" << rotation_angle_;
-    case Type::FreeformGradient: {
-      SliceBuilder sb;
-      sb << get_color_hex_string(top_color_) << '~' << get_color_hex_string(bottom_color_) << '~'
-         << get_color_hex_string(third_color_);
-      if (fourth_color_ != -1) {
-        sb << '~' << get_color_hex_string(fourth_color_);
-      }
-      return sb.as_cslice().str();
-    }
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-bool BackgroundFill::is_dark() const {
-  switch (get_type()) {
-    case Type::Solid:
-      return (top_color_ & 0x808080) == 0;
-    case Type::Gradient:
-      return (top_color_ & 0x808080) == 0 && (bottom_color_ & 0x808080) == 0;
-    case Type::FreeformGradient:
-      return (top_color_ & 0x808080) == 0 && (bottom_color_ & 0x808080) == 0 && (third_color_ & 0x808080) == 0 &&
-             (fourth_color_ == -1 || (fourth_color_ & 0x808080) == 0);
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool operator==(const BackgroundFill &lhs, const BackgroundFill &rhs) {
-  return lhs.top_color_ == rhs.top_color_ && lhs.bottom_color_ == rhs.bottom_color_ &&
-         lhs.rotation_angle_ == rhs.rotation_angle_ && lhs.third_color_ == rhs.third_color_ &&
-         lhs.fourth_color_ == rhs.fourth_color_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundFill &fill) {
-  return string_builder << "BackgroundFill[" << fill.top_color_ << '~' << fill.bottom_color_ << '~' << fill.third_color_
-                        << '~' << fill.fourth_color_ << ':' << fill.rotation_angle_ << ']';
-}
-
-string BackgroundType::get_mime_type() const {
-  CHECK(has_file());
-  return type_ == Type::Pattern ? "image/png" : "image/jpeg";
-}
-
-void BackgroundType::apply_parameters_from_link(Slice name) {
-  const auto query = parse_url_query(name);
-
-  is_blurred_ = false;
-  is_moving_ = false;
-  auto modes = full_split(query.get_arg("mode"), ' ');
-  for (auto &mode : modes) {
-    if (type_ != Type::Pattern && to_lower(mode) == "blur") {
-      is_blurred_ = true;
-    }
-    if (to_lower(mode) == "motion") {
-      is_moving_ = true;
-    }
-  }
-
-  if (type_ == Type::Pattern) {
-    intensity_ = -101;
-    auto intensity_arg = query.get_arg("intensity");
-    if (!intensity_arg.empty()) {
-      intensity_ = to_integer<int32>(intensity_arg);
-    }
-    if (!is_valid_intensity(intensity_, true)) {
-      intensity_ = 50;
-    }
-
-    auto bg_color = query.get_arg("bg_color");
-    if (!bg_color.empty()) {
-      auto r_fill = BackgroundFill::get_background_fill(
-          PSLICE() << url_encode(bg_color) << "?rotation=" << url_encode(query.get_arg("rotation")));
-      if (r_fill.is_ok()) {
-        fill_ = r_fill.move_as_ok();
-      }
-    }
-  }
-}
-
-string BackgroundType::get_link(bool is_first) const {
-  string mode;
-  if (is_blurred_) {
-    mode = "blur";
-  }
-  if (is_moving_) {
-    if (!mode.empty()) {
-      mode += '+';
-    }
-    mode += "motion";
-  }
-
-  switch (type_) {
-    case Type::Wallpaper: {
-      if (!mode.empty()) {
-        return PSTRING() << "mode=" << mode;
-      }
-      return string();
-    }
-    case Type::Pattern: {
-      string link = PSTRING() << "intensity=" << intensity_ << "&bg_color=" << fill_.get_link(false);
-      if (!mode.empty()) {
-        link += "&mode=";
-        link += mode;
-      }
-      return link;
-    }
-    case Type::Fill:
-      return fill_.get_link(is_first);
-    case Type::ChatTheme:
-      return string();
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-bool operator==(const BackgroundType &lhs, const BackgroundType &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.is_blurred_ == rhs.is_blurred_ && lhs.is_moving_ == rhs.is_moving_ &&
-         lhs.intensity_ == rhs.intensity_ && lhs.fill_ == rhs.fill_ && lhs.theme_name_ == rhs.theme_name_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundType &type) {
-  string_builder << "type ";
-  switch (type.type_) {
-    case BackgroundType::Type::Wallpaper:
-      string_builder << "Wallpaper";
-      break;
-    case BackgroundType::Type::Pattern:
-      string_builder << "Pattern";
-      break;
-    case BackgroundType::Type::Fill:
-      string_builder << "Fill";
-      break;
-    case BackgroundType::Type::ChatTheme:
-      string_builder << "ChatTheme";
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  // string_builder << ' ' << type.is_blurred_ << ' ' << type.is_moving_ << ' ' << type.intensity_ << ' ' << type.fill_
-  //                << ' ' << type.theme_name_ << ' ';
-  return string_builder << '[' << type.get_link() << ']';
-}
-
-Result<BackgroundType> BackgroundType::get_background_type(const td_api::BackgroundType *background_type,
-                                                           int32 dark_theme_dimming) {
-  if (background_type == nullptr) {
-    return BackgroundType();
-  }
-  if (dark_theme_dimming < 0 || dark_theme_dimming > 100) {
-    return Status::Error(400, "Invalid dark them brightness specified");
-  }
-
-  switch (background_type->get_id()) {
-    case td_api::backgroundTypeWallpaper::ID: {
-      auto wallpaper_type = static_cast<const td_api::backgroundTypeWallpaper *>(background_type);
-      return BackgroundType(wallpaper_type->is_blurred_, wallpaper_type->is_moving_, dark_theme_dimming);
-    }
-    case td_api::backgroundTypePattern::ID: {
-      auto pattern_type = static_cast<const td_api::backgroundTypePattern *>(background_type);
-      TRY_RESULT(background_fill, BackgroundFill::get_background_fill(pattern_type->fill_.get()));
-      if (!is_valid_intensity(pattern_type->intensity_, false)) {
-        return Status::Error(400, "Wrong intensity value");
-      }
-      auto intensity = pattern_type->is_inverted_ ? -max(pattern_type->intensity_, 1) : pattern_type->intensity_;
-      return BackgroundType(pattern_type->is_moving_, std::move(background_fill), intensity);
-    }
-    case td_api::backgroundTypeFill::ID: {
-      auto fill_type = static_cast<const td_api::backgroundTypeFill *>(background_type);
-      TRY_RESULT(background_fill, BackgroundFill::get_background_fill(fill_type->fill_.get()));
-      return BackgroundType(std::move(background_fill), dark_theme_dimming);
-    }
-    case td_api::backgroundTypeChatTheme::ID: {
-      auto chat_theme_type = static_cast<const td_api::backgroundTypeChatTheme *>(background_type);
-      return BackgroundType(chat_theme_type->theme_name_);
-    }
-    default:
-      UNREACHABLE();
-      return BackgroundType();
-  }
-}
-
-Result<BackgroundType> BackgroundType::get_local_background_type(Slice name) {
-  TRY_RESULT(fill, BackgroundFill::get_background_fill(name));
-  return BackgroundType(std::move(fill), 0);
-}
-
-bool BackgroundType::is_background_name_local(Slice name) {
-  return name.size() <= 13u || name.find('?') <= 13u || !is_base64url_characters(name.substr(0, name.find('?')));
-}
-
-BackgroundType::BackgroundType(bool has_no_file, bool is_pattern,
-                               telegram_api::object_ptr<telegram_api::wallPaperSettings> settings) {
-  if (settings != nullptr && (settings->flags_ & telegram_api::wallPaperSettings::INTENSITY_MASK) != 0) {
-    intensity_ = settings->intensity_;
-    if (!is_valid_intensity(intensity_, is_pattern)) {
-      LOG(ERROR) << "Receive " << to_string(settings);
-      intensity_ = is_pattern ? 50 : 0;
-    }
-  }
-  if (has_no_file) {
-    CHECK(settings != nullptr);
-    if ((settings->flags_ & telegram_api::wallPaperSettings::EMOTICON_MASK) != 0) {
-      type_ = Type::ChatTheme;
-      theme_name_ = std::move(settings->emoticon_);
-    } else {
-      type_ = Type::Fill;
-      fill_ = BackgroundFill(settings.get());
-    }
-  } else if (is_pattern) {
-    type_ = Type::Pattern;
-    if (settings != nullptr) {
-      fill_ = BackgroundFill(settings.get());
-      is_moving_ = settings->motion_;
-    }
-  } else {
-    type_ = Type::Wallpaper;
-    if (settings != nullptr) {
-      is_blurred_ = settings->blur_;
-      is_moving_ = settings->motion_;
-    }
-  }
-}
-
-td_api::object_ptr<td_api::BackgroundFill> BackgroundFill::get_background_fill_object() const {
-  switch (get_type()) {
-    case Type::Solid:
-      return td_api::make_object<td_api::backgroundFillSolid>(top_color_);
-    case Type::Gradient:
-      return td_api::make_object<td_api::backgroundFillGradient>(top_color_, bottom_color_, rotation_angle_);
-    case Type::FreeformGradient: {
-      vector<int32> colors{top_color_, bottom_color_, third_color_, fourth_color_};
-      if (colors.back() == -1) {
-        colors.pop_back();
-      }
-      return td_api::make_object<td_api::backgroundFillFreeformGradient>(std::move(colors));
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::BackgroundType> BackgroundType::get_background_type_object() const {
-  switch (type_) {
-    case Type::Wallpaper:
-      return td_api::make_object<td_api::backgroundTypeWallpaper>(is_blurred_, is_moving_);
-    case Type::Pattern:
-      return td_api::make_object<td_api::backgroundTypePattern>(
-          fill_.get_background_fill_object(), intensity_ < 0 ? -intensity_ : intensity_, intensity_ < 0, is_moving_);
-    case Type::Fill:
-      return td_api::make_object<td_api::backgroundTypeFill>(fill_.get_background_fill_object());
-    case Type::ChatTheme:
-      return td_api::make_object<td_api::backgroundTypeChatTheme>(theme_name_);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::wallPaperSettings> BackgroundType::get_input_wallpaper_settings() const {
-  int32 flags = 0;
-  switch (fill_.get_type()) {
-    case BackgroundFill::Type::FreeformGradient:
-      if (fill_.fourth_color_ != -1) {
-        flags |= telegram_api::wallPaperSettings::FOURTH_BACKGROUND_COLOR_MASK;
-      }
-      flags |= telegram_api::wallPaperSettings::THIRD_BACKGROUND_COLOR_MASK;
-      // fallthrough
-    case BackgroundFill::Type::Gradient:
-      flags |= telegram_api::wallPaperSettings::SECOND_BACKGROUND_COLOR_MASK;
-      // fallthrough
-    case BackgroundFill::Type::Solid:
-      flags |= telegram_api::wallPaperSettings::BACKGROUND_COLOR_MASK;
-      break;
-    default:
-      UNREACHABLE();
-  }
-  if (!theme_name_.empty()) {
-    flags |= telegram_api::wallPaperSettings::EMOTICON_MASK;
-  }
-  if (intensity_ != 0) {
-    flags |= telegram_api::wallPaperSettings::INTENSITY_MASK;
-  }
-  return telegram_api::make_object<telegram_api::wallPaperSettings>(
-      flags, is_blurred_, is_moving_, fill_.top_color_, fill_.bottom_color_, fill_.third_color_, fill_.fourth_color_,
-      intensity_, fill_.rotation_angle_, theme_name_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundType.h b/third-party/td/td/td/telegram/BackgroundType.h
deleted file mode 100644
index 576744abf1..0000000000
--- a/third-party/td/td/td/telegram/BackgroundType.h
+++ /dev/null
@@ -1,159 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class BackgroundFill {
-  int32 top_color_ = 0;
-  int32 bottom_color_ = 0;
-  int32 rotation_angle_ = 0;
-  int32 third_color_ = -1;
-  int32 fourth_color_ = -1;
-
-  BackgroundFill() = default;
-  explicit BackgroundFill(int32 solid_color) : top_color_(solid_color), bottom_color_(solid_color) {
-  }
-  BackgroundFill(int32 top_color, int32 bottom_color, int32 rotation_angle)
-      : top_color_(top_color), bottom_color_(bottom_color), rotation_angle_(rotation_angle) {
-    if (get_type() != Type::Gradient) {
-      rotation_angle_ = 0;
-    }
-  }
-  BackgroundFill(int32 first_color, int32 second_color, int32 third_color, int32 fourth_color)
-      : top_color_(first_color), bottom_color_(second_color), third_color_(third_color), fourth_color_(fourth_color) {
-  }
-
-  explicit BackgroundFill(const telegram_api::wallPaperSettings *settings);
-
-  static Result<BackgroundFill> get_background_fill(const td_api::BackgroundFill *fill);
-
-  string get_link(bool is_first) const;
-
-  td_api::object_ptr<td_api::BackgroundFill> get_background_fill_object() const;
-
-  enum class Type : int32 { Solid, Gradient, FreeformGradient };
-  Type get_type() const {
-    if (third_color_ != -1) {
-      return Type::FreeformGradient;
-    }
-    if (top_color_ == bottom_color_) {
-      return Type::Solid;
-    }
-    return Type::Gradient;
-  }
-
-  friend bool operator==(const BackgroundFill &lhs, const BackgroundFill &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundFill &fill);
-
-  friend class BackgroundType;
-
-  static Result<BackgroundFill> get_background_fill(Slice name);
-
-  bool is_dark() const;
-};
-
-bool operator==(const BackgroundFill &lhs, const BackgroundFill &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundFill &fill);
-
-class BackgroundType {
-  enum class Type : int32 { Wallpaper, Pattern, Fill, ChatTheme };
-  Type type_ = Type::Fill;
-  bool is_blurred_ = false;
-  bool is_moving_ = false;
-  int32 intensity_ = 0;
-  BackgroundFill fill_;
-  string theme_name_;
-
-  friend bool operator==(const BackgroundType &lhs, const BackgroundType &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundType &type);
-
-  BackgroundType(bool is_blurred, bool is_moving, int32 dark_theme_dimming)
-      : type_(Type::Wallpaper), is_blurred_(is_blurred), is_moving_(is_moving), intensity_(dark_theme_dimming) {
-  }
-  BackgroundType(bool is_moving, BackgroundFill &&fill, int32 intensity)
-      : type_(Type::Pattern), is_moving_(is_moving), intensity_(intensity), fill_(std::move(fill)) {
-  }
-  BackgroundType(BackgroundFill &&fill, int32 dark_theme_dimming)
-      : type_(Type::Fill), intensity_(dark_theme_dimming), fill_(std::move(fill)) {
-  }
-  explicit BackgroundType(string theme_name) : type_(Type::ChatTheme), theme_name_(std::move(theme_name)) {
-  }
-
- public:
-  BackgroundType() = default;
-
-  BackgroundType(bool has_no_file, bool is_pattern, telegram_api::object_ptr<telegram_api::wallPaperSettings> settings);
-
-  static Result<BackgroundType> get_background_type(const td_api::BackgroundType *background_type,
-                                                    int32 dark_theme_dimming);
-
-  static Result<BackgroundType> get_local_background_type(Slice name);
-
-  static bool is_background_name_local(Slice name);
-
-  bool has_file() const {
-    return type_ == Type::Wallpaper || type_ == Type::Pattern;
-  }
-
-  bool has_gradient_fill() const {
-    return type_ == Type::Fill && fill_.get_type() != BackgroundFill::Type::Solid;
-  }
-
-  string get_mime_type() const;
-
-  void apply_parameters_from_link(Slice name);
-
-  string get_link(bool is_first = true) const;
-
-  bool has_equal_type(const BackgroundType &other) const {
-    return type_ == other.type_;
-  }
-
-  td_api::object_ptr<td_api::BackgroundType> get_background_type_object() const;
-
-  telegram_api::object_ptr<telegram_api::wallPaperSettings> get_input_wallpaper_settings() const;
-
-  bool is_dark() const {
-    CHECK(type_ == Type::Fill);
-    return fill_.is_dark();
-  }
-
-  int32 get_dark_theme_dimming() const {
-    if (type_ == Type::Pattern) {
-      return 0;
-    }
-    return intensity_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const BackgroundType &lhs, const BackgroundType &rhs);
-
-inline bool operator!=(const BackgroundType &lhs, const BackgroundType &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundType &type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BackgroundType.hpp b/third-party/td/td/td/telegram/BackgroundType.hpp
deleted file mode 100644
index 4c8f78782e..0000000000
--- a/third-party/td/td/td/telegram/BackgroundType.hpp
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BackgroundType.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BackgroundType::store(StorerT &storer) const {
-  using td::store;
-  bool has_fill = fill_.top_color_ != 0 || fill_.bottom_color_ != 0;
-  bool has_intensity = intensity_ != 0;
-  auto fill_type = fill_.get_type();
-  bool is_gradient = fill_type == BackgroundFill::Type::Gradient;
-  bool is_freeform_gradient = fill_type == BackgroundFill::Type::FreeformGradient;
-  bool has_theme_name = !theme_name_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_blurred_);
-  STORE_FLAG(is_moving_);
-  STORE_FLAG(has_fill);
-  STORE_FLAG(has_intensity);
-  STORE_FLAG(is_gradient);
-  STORE_FLAG(is_freeform_gradient);
-  STORE_FLAG(has_theme_name);
-  END_STORE_FLAGS();
-  store(type_, storer);
-  if (is_freeform_gradient) {
-    store(fill_.top_color_, storer);
-    store(fill_.bottom_color_, storer);
-    store(fill_.third_color_, storer);
-    store(fill_.fourth_color_, storer);
-  } else if (has_fill) {
-    store(fill_.top_color_, storer);
-    if (is_gradient) {
-      store(fill_.bottom_color_, storer);
-      store(fill_.rotation_angle_, storer);
-    }
-  }
-  if (has_intensity) {
-    store(intensity_, storer);
-  }
-  if (has_theme_name) {
-    store(theme_name_, storer);
-  }
-}
-
-template <class ParserT>
-void BackgroundType::parse(ParserT &parser) {
-  using td::parse;
-  bool has_fill;
-  bool has_intensity;
-  bool is_gradient;
-  bool is_freeform_gradient;
-  bool has_theme_name;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_blurred_);
-  PARSE_FLAG(is_moving_);
-  PARSE_FLAG(has_fill);
-  PARSE_FLAG(has_intensity);
-  PARSE_FLAG(is_gradient);
-  PARSE_FLAG(is_freeform_gradient);
-  PARSE_FLAG(has_theme_name);
-  END_PARSE_FLAGS();
-  parse(type_, parser);
-  if (is_freeform_gradient) {
-    parse(fill_.top_color_, parser);
-    parse(fill_.bottom_color_, parser);
-    parse(fill_.third_color_, parser);
-    parse(fill_.fourth_color_, parser);
-  } else if (has_fill) {
-    parse(fill_.top_color_, parser);
-    if (is_gradient) {
-      parse(fill_.bottom_color_, parser);
-      parse(fill_.rotation_angle_, parser);
-    } else {
-      fill_.bottom_color_ = fill_.top_color_;
-    }
-  }
-  if (has_intensity) {
-    parse(intensity_, parser);
-  }
-  if (has_theme_name) {
-    parse(theme_name_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BaseTheme.cpp b/third-party/td/td/td/telegram/BaseTheme.cpp
deleted file mode 100644
index 8f7603b710..0000000000
--- a/third-party/td/td/td/telegram/BaseTheme.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BaseTheme.h"
-
-namespace td {
-
-bool is_dark_base_theme(BaseTheme base_theme) {
-  switch (base_theme) {
-    case BaseTheme::Classic:
-    case BaseTheme::Day:
-    case BaseTheme::Arctic:
-      return false;
-    case BaseTheme::Night:
-    case BaseTheme::Tinted:
-      return true;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-BaseTheme get_base_theme(const telegram_api::object_ptr<telegram_api::BaseTheme> &base_theme) {
-  CHECK(base_theme != nullptr);
-  switch (base_theme->get_id()) {
-    case telegram_api::baseThemeClassic::ID:
-      return BaseTheme::Classic;
-    case telegram_api::baseThemeDay::ID:
-      return BaseTheme::Day;
-    case telegram_api::baseThemeNight::ID:
-      return BaseTheme::Night;
-    case telegram_api::baseThemeTinted::ID:
-      return BaseTheme::Tinted;
-    case telegram_api::baseThemeArctic::ID:
-      return BaseTheme::Arctic;
-    default:
-      UNREACHABLE();
-      return BaseTheme::Classic;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BaseTheme.h b/third-party/td/td/td/telegram/BaseTheme.h
deleted file mode 100644
index 3ce35b5628..0000000000
--- a/third-party/td/td/td/telegram/BaseTheme.h
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-// append-only
-enum class BaseTheme : int32 { Classic, Day, Night, Tinted, Arctic };
-
-bool is_dark_base_theme(BaseTheme base_theme);
-
-BaseTheme get_base_theme(const telegram_api::object_ptr<telegram_api::BaseTheme> &base_theme);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Birthdate.cpp b/third-party/td/td/td/telegram/Birthdate.cpp
deleted file mode 100644
index 4e0cc4914c..0000000000
--- a/third-party/td/td/td/telegram/Birthdate.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Birthdate.h"
-
-#include "td/utils/HttpDate.h"
-
-namespace td {
-
-void Birthdate::init(int32 day, int32 month, int32 year) {
-  if (year < 1800 || year > 3000) {
-    year = 0;
-  }
-  if (month <= 0 || month > 12 || day <= 0 || day > HttpDate::days_in_month(year, month)) {
-    return;
-  }
-  birthdate_ = day | (month << 5) | (year << 9);
-}
-
-Birthdate::Birthdate(telegram_api::object_ptr<telegram_api::birthday> birthday) {
-  if (birthday == nullptr) {
-    return;
-  }
-  init(birthday->day_, birthday->month_, birthday->year_);
-}
-
-Birthdate::Birthdate(td_api::object_ptr<td_api::birthdate> birthdate) {
-  if (birthdate == nullptr) {
-    return;
-  }
-  init(birthdate->day_, birthdate->month_, birthdate->year_);
-}
-
-td_api::object_ptr<td_api::birthdate> Birthdate::get_birthdate_object() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::birthdate>(get_day(), get_month(), get_year());
-}
-
-telegram_api::object_ptr<telegram_api::birthday> Birthdate::get_input_birthday() const {
-  int32 flags = 0;
-  auto year = get_year();
-  if (year != 0) {
-    flags |= telegram_api::birthday::YEAR_MASK;
-  }
-  return telegram_api::make_object<telegram_api::birthday>(flags, get_day(), get_month(), year);
-}
-
-bool operator==(const Birthdate &lhs, const Birthdate &rhs) {
-  return lhs.birthdate_ == rhs.birthdate_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Birthdate &birthdate) {
-  if (birthdate.is_empty()) {
-    return string_builder << "unknown birthdate";
-  }
-  string_builder << "birthdate " << birthdate.get_day() << '.' << birthdate.get_month();
-  auto year = birthdate.get_year();
-  if (year != 0) {
-    string_builder << '.' << year;
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Birthdate.h b/third-party/td/td/td/telegram/Birthdate.h
deleted file mode 100644
index 5b05050ca1..0000000000
--- a/third-party/td/td/td/telegram/Birthdate.h
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Birthdate {
- public:
-  Birthdate() = default;
-
-  explicit Birthdate(telegram_api::object_ptr<telegram_api::birthday> birthday);
-
-  explicit Birthdate(td_api::object_ptr<td_api::birthdate> birthdate);
-
-  td_api::object_ptr<td_api::birthdate> get_birthdate_object() const;
-
-  telegram_api::object_ptr<telegram_api::birthday> get_input_birthday() const;
-
-  bool is_empty() const {
-    return birthdate_ == 0;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  int32 birthdate_ = 0;
-
-  int32 get_day() const {
-    return birthdate_ & 31;
-  }
-
-  int32 get_month() const {
-    return (birthdate_ >> 5) & 15;
-  }
-
-  int32 get_year() const {
-    return birthdate_ >> 9;
-  }
-
-  void init(int32 day, int32 month, int32 year);
-
-  friend bool operator==(const Birthdate &lhs, const Birthdate &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const Birthdate &birthdate);
-};
-
-bool operator==(const Birthdate &lhs, const Birthdate &rhs);
-
-inline bool operator!=(const Birthdate &lhs, const Birthdate &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Birthdate &birthdate);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Birthdate.hpp b/third-party/td/td/td/telegram/Birthdate.hpp
deleted file mode 100644
index 50904a8815..0000000000
--- a/third-party/td/td/td/telegram/Birthdate.hpp
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Birthdate.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void Birthdate::store(StorerT &storer) const {
-  td::store(birthdate_, storer);
-}
-
-template <class ParserT>
-void Birthdate::parse(ParserT &parser) {
-  td::parse(birthdate_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BlockListId.h b/third-party/td/td/td/telegram/BlockListId.h
deleted file mode 100644
index 7c1d94eaa6..0000000000
--- a/third-party/td/td/td/telegram/BlockListId.h
+++ /dev/null
@@ -1,99 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class BlockListId {
-  enum class Type : int32 { None = -1, Main, Stories };
-  Type type_ = Type::None;
-
-  friend struct BlockListIdHash;
-
-  explicit BlockListId(Type type) : type_(type) {
-  }
-
- public:
-  BlockListId() = default;
-
-  BlockListId(bool is_blocked, bool is_blocked_for_stories)
-      : type_(is_blocked ? Type::Main : (is_blocked_for_stories ? Type::Stories : Type::None)) {
-  }
-
-  explicit BlockListId(const td_api::object_ptr<td_api::BlockList> &block_list) {
-    if (block_list == nullptr) {
-      return;
-    }
-    switch (block_list->get_id()) {
-      case td_api::blockListMain::ID:
-        type_ = Type::Main;
-        break;
-      case td_api::blockListStories::ID:
-        type_ = Type::Stories;
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  static BlockListId main() {
-    return BlockListId(Type::Main);
-  }
-
-  static BlockListId stories() {
-    return BlockListId(Type::Stories);
-  }
-
-  td_api::object_ptr<td_api::BlockList> get_block_list_object() const {
-    switch (type_) {
-      case Type::None:
-        return nullptr;
-      case Type::Main:
-        return td_api::make_object<td_api::blockListMain>();
-      case Type::Stories:
-        return td_api::make_object<td_api::blockListStories>();
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  bool is_valid() const {
-    return type_ == Type::Main || type_ == Type::Stories;
-  }
-
-  bool operator==(const BlockListId &other) const {
-    return type_ == other.type_;
-  }
-
-  bool operator!=(const BlockListId &other) const {
-    return type_ != other.type_;
-  }
-};
-
-struct BlockListIdHash {
-  uint32 operator()(BlockListId block_list_id) const {
-    return Hash<int32>()(static_cast<int32>(block_list_id.type_));
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, BlockListId block_list_id) {
-  if (block_list_id == BlockListId::main()) {
-    return string_builder << "MainBlockList";
-  }
-  if (block_list_id == BlockListId::stories()) {
-    return string_builder << "StoriesBlockList";
-  }
-  return string_builder << "InvalidBlockList";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BoostManager.cpp b/third-party/td/td/td/telegram/BoostManager.cpp
deleted file mode 100644
index 2753359f0d..0000000000
--- a/third-party/td/td/td/telegram/BoostManager.cpp
+++ /dev/null
@@ -1,520 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BoostManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <algorithm>
-
-namespace td {
-
-static td_api::object_ptr<td_api::chatBoost> get_chat_boost_object(
-    Td *td, const telegram_api::object_ptr<telegram_api::boost> &boost) {
-  auto source = [&]() -> td_api::object_ptr<td_api::ChatBoostSource> {
-    if (boost->giveaway_) {
-      UserId user_id(boost->user_id_);
-      if (!user_id.is_valid() || boost->unclaimed_) {
-        user_id = UserId();
-      }
-      auto giveaway_message_id = MessageId(ServerMessageId(boost->giveaway_msg_id_));
-      if (!giveaway_message_id.is_valid()) {
-        giveaway_message_id = MessageId::min();
-      }
-      return td_api::make_object<td_api::chatBoostSourceGiveaway>(
-          td->user_manager_->get_user_id_object(user_id, "chatBoostSourceGiveaway"), boost->used_gift_slug_,
-          StarManager::get_star_count(boost->stars_), giveaway_message_id.get(), boost->unclaimed_);
-    }
-    if (boost->gift_) {
-      UserId user_id(boost->user_id_);
-      if (!user_id.is_valid()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatBoostSourceGiftCode>(
-          td->user_manager_->get_user_id_object(user_id, "chatBoostSourceGiftCode"), boost->used_gift_slug_);
-    }
-
-    UserId user_id(boost->user_id_);
-    if (!user_id.is_valid()) {
-      return nullptr;
-    }
-    return td_api::make_object<td_api::chatBoostSourcePremium>(
-        td->user_manager_->get_user_id_object(user_id, "chatBoostSourcePremium"));
-  }();
-  if (source == nullptr) {
-    LOG(ERROR) << "Receive " << to_string(boost);
-    return nullptr;
-  }
-  return td_api::make_object<td_api::chatBoost>(boost->id_, max(boost->multiplier_, 1), std::move(source), boost->date_,
-                                                max(boost->expires_, 0));
-}
-
-static td_api::object_ptr<td_api::chatBoostSlots> get_chat_boost_slots_object(
-    Td *td, telegram_api::object_ptr<telegram_api::premium_myBoosts> &&my_boosts) {
-  td->user_manager_->on_get_users(std::move(my_boosts->users_), "GetMyBoostsQuery");
-  td->chat_manager_->on_get_chats(std::move(my_boosts->chats_), "GetMyBoostsQuery");
-  vector<td_api::object_ptr<td_api::chatBoostSlot>> slots;
-  for (auto &my_boost : my_boosts->my_boosts_) {
-    auto expiration_date = my_boost->expires_;
-    if (expiration_date <= G()->unix_time()) {
-      continue;
-    }
-
-    auto start_date = max(0, my_boost->date_);
-    auto cooldown_until_date = max(0, my_boost->cooldown_until_date_);
-    DialogId dialog_id;
-    if (my_boost->peer_ != nullptr) {
-      dialog_id = DialogId(my_boost->peer_);
-      if (!dialog_id.is_valid()) {
-        LOG(ERROR) << "Receive " << to_string(my_boost);
-        continue;
-      }
-    }
-    if (dialog_id.is_valid()) {
-      td->dialog_manager_->force_create_dialog(dialog_id, "GetMyBoostsQuery", true);
-    } else {
-      start_date = 0;
-      cooldown_until_date = 0;
-    }
-    slots.push_back(td_api::make_object<td_api::chatBoostSlot>(
-        my_boost->slot_, td->dialog_manager_->get_chat_id_object(dialog_id, "GetMyBoostsQuery"), start_date,
-        expiration_date, cooldown_until_date));
-  }
-  return td_api::make_object<td_api::chatBoostSlots>(std::move(slots));
-}
-
-class GetMyBoostsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatBoostSlots>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetMyBoostsQuery(Promise<td_api::object_ptr<td_api::chatBoostSlots>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::premium_getMyBoosts(), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::premium_getMyBoosts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetMyBoostsQuery: " << to_string(result);
-    promise_.set_value(get_chat_boost_slots_object(td_, std::move(result)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBoostsStatusQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatBoostStatus>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetBoostsStatusQuery(Promise<td_api::object_ptr<td_api::chatBoostStatus>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(
-        G()->net_query_creator().create(telegram_api::premium_getBoostsStatus(std::move(input_peer)), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::premium_getBoostsStatus>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetBoostsStatusQuery: " << to_string(result);
-    if (result->level_ < 0 || result->current_level_boosts_ < 0 || result->boosts_ < result->current_level_boosts_ ||
-        (result->next_level_boosts_ != 0 && result->boosts_ >= result->next_level_boosts_)) {
-      LOG(ERROR) << "Receive invalid " << to_string(result);
-      if (result->level_ < 0) {
-        result->level_ = 0;
-      }
-      if (result->current_level_boosts_ < 0) {
-        result->current_level_boosts_ = 0;
-      }
-      if (result->boosts_ < result->current_level_boosts_) {
-        result->boosts_ = result->current_level_boosts_;
-      }
-      if (result->next_level_boosts_ != 0 && result->boosts_ >= result->next_level_boosts_) {
-        result->next_level_boosts_ = result->boosts_ + 1;
-      }
-    }
-    int32 premium_member_count = 0;
-    double premium_member_percentage = 0.0;
-    if (result->premium_audience_ != nullptr) {
-      premium_member_count = max(0, static_cast<int32>(result->premium_audience_->part_));
-      auto participant_count = max(static_cast<int32>(result->premium_audience_->total_), premium_member_count);
-      if (dialog_id_.get_type() == DialogType::Channel) {
-        td_->chat_manager_->on_update_channel_participant_count(dialog_id_.get_channel_id(), participant_count);
-      }
-      if (participant_count > 0) {
-        premium_member_percentage = 100.0 * premium_member_count / participant_count;
-      }
-    }
-    auto giveaways = transform(
-        std::move(result->prepaid_giveaways_),
-        [](telegram_api::object_ptr<telegram_api::PrepaidGiveaway> giveaway_ptr)
-            -> td_api::object_ptr<td_api::prepaidGiveaway> {
-          switch (giveaway_ptr->get_id()) {
-            case telegram_api::prepaidGiveaway::ID: {
-              auto giveaway = telegram_api::move_object_as<telegram_api::prepaidGiveaway>(giveaway_ptr);
-              return td_api::make_object<td_api::prepaidGiveaway>(
-                  giveaway->id_, giveaway->quantity_,
-                  td_api::make_object<td_api::giveawayPrizePremium>(giveaway->months_), 0, giveaway->date_);
-            }
-            case telegram_api::prepaidStarsGiveaway::ID: {
-              auto giveaway = telegram_api::move_object_as<telegram_api::prepaidStarsGiveaway>(giveaway_ptr);
-              return td_api::make_object<td_api::prepaidGiveaway>(
-                  giveaway->id_, giveaway->quantity_,
-                  td_api::make_object<td_api::giveawayPrizeStars>(StarManager::get_star_count(giveaway->stars_)),
-                  giveaway->boosts_, giveaway->date_);
-            }
-            default:
-              UNREACHABLE();
-              return nullptr;
-          }
-        });
-    auto boost_count = max(0, result->boosts_);
-    auto gift_code_boost_count = clamp(result->gift_boosts_, 0, boost_count);
-    promise_.set_value(td_api::make_object<td_api::chatBoostStatus>(
-        result->boost_url_, std::move(result->my_boost_slots_), result->level_, gift_code_boost_count, boost_count,
-        result->current_level_boosts_, result->next_level_boosts_, premium_member_count, premium_member_percentage,
-        std::move(giveaways)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetBoostsStatusQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ApplyBoostQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatBoostSlots>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ApplyBoostQuery(Promise<td_api::object_ptr<td_api::chatBoostSlots>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, vector<int32> slot_ids) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(
-        G()->net_query_creator().create(telegram_api::premium_applyBoost(telegram_api::premium_applyBoost::SLOTS_MASK,
-                                                                         std::move(slot_ids), std::move(input_peer)),
-                                        {{dialog_id}, {"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::premium_applyBoost>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ApplyBoostQuery: " << to_string(result);
-    promise_.set_value(get_chat_boost_slots_object(td_, std::move(result)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ApplyBoostQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBoostsListQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundChatBoosts>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetBoostsListQuery(Promise<td_api::object_ptr<td_api::foundChatBoosts>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool only_gift_codes, const string &offset, int32 limit) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::premium_getBoostsList(0, only_gift_codes, std::move(input_peer), offset, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::premium_getBoostsList>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetBoostsListQuery: " << to_string(result);
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetBoostsListQuery");
-
-    auto total_count = result->count_;
-    vector<td_api::object_ptr<td_api::chatBoost>> boosts;
-    for (auto &boost : result->boosts_) {
-      auto chat_boost_object = get_chat_boost_object(td_, boost);
-      if (chat_boost_object == nullptr || chat_boost_object->expiration_date_ <= G()->unix_time()) {
-        continue;
-      }
-      boosts.push_back(std::move(chat_boost_object));
-    }
-    promise_.set_value(
-        td_api::make_object<td_api::foundChatBoosts>(total_count, std::move(boosts), result->next_offset_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetBoostsListQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetUserBoostsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundChatBoosts>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetUserBoostsQuery(Promise<td_api::object_ptr<td_api::foundChatBoosts>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, UserId user_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    auto r_input_user = td_->user_manager_->get_input_user(user_id);
-    CHECK(r_input_user.is_ok());
-    send_query(G()->net_query_creator().create(
-        telegram_api::premium_getUserBoosts(std::move(input_peer), r_input_user.move_as_ok())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::premium_getUserBoosts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetUserBoostsQuery: " << to_string(result);
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetUserBoostsQuery");
-
-    auto total_count = result->count_;
-    vector<td_api::object_ptr<td_api::chatBoost>> boosts;
-    for (auto &boost : result->boosts_) {
-      auto chat_boost_object = get_chat_boost_object(td_, boost);
-      if (chat_boost_object == nullptr || chat_boost_object->expiration_date_ <= G()->unix_time()) {
-        continue;
-      }
-      boosts.push_back(std::move(chat_boost_object));
-    }
-    promise_.set_value(
-        td_api::make_object<td_api::foundChatBoosts>(total_count, std::move(boosts), result->next_offset_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetUserBoostsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-BoostManager::BoostManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void BoostManager::tear_down() {
-  parent_.reset();
-}
-
-td_api::object_ptr<td_api::chatBoostLevelFeatures> BoostManager::get_chat_boost_level_features_object(
-    bool for_megagroup, int32 level) const {
-  int32 actual_level =
-      clamp(level, 0, static_cast<int32>(td_->option_manager_->get_option_integer("chat_boost_level_max")));
-  auto have_enough_boost_level = [&](Slice name) {
-    auto needed_boost_level = narrow_cast<int32>(td_->option_manager_->get_option_integer(
-        PSLICE() << (for_megagroup ? "group" : "channel") << '_' << name << "_level_min"));
-    return needed_boost_level != 0 && actual_level >= needed_boost_level;
-  };
-  auto theme_counts = td_->theme_manager_->get_dialog_boost_available_count(actual_level, for_megagroup);
-  auto can_set_profile_background_custom_emoji = have_enough_boost_level("profile_bg_icon");
-  auto can_set_background_custom_emoji = have_enough_boost_level("bg_icon");
-  auto can_set_emoji_status = have_enough_boost_level("emoji_status");
-  auto can_set_custom_background = have_enough_boost_level("custom_wallpaper");
-  auto can_set_custom_emoji_sticker_set = have_enough_boost_level("emoji_stickers");
-  auto can_recognize_speech = have_enough_boost_level("transcribe");
-  auto can_restrict_sponsored_messages = have_enough_boost_level("restrict_sponsored");
-  return td_api::make_object<td_api::chatBoostLevelFeatures>(
-      level, actual_level, for_megagroup ? 0 : actual_level, theme_counts.title_color_count_,
-      theme_counts.profile_accent_color_count_, can_set_profile_background_custom_emoji,
-      theme_counts.accent_color_count_, can_set_background_custom_emoji, can_set_emoji_status,
-      theme_counts.chat_theme_count_, can_set_custom_background, can_set_custom_emoji_sticker_set, can_recognize_speech,
-      can_restrict_sponsored_messages);
-}
-
-td_api::object_ptr<td_api::chatBoostFeatures> BoostManager::get_chat_boost_features_object(bool for_megagroup) const {
-  vector<int32> big_levels;
-  auto get_min_boost_level = [&](Slice name) {
-    auto min_level = narrow_cast<int32>(td_->option_manager_->get_option_integer(
-        PSLICE() << (for_megagroup ? "group" : "channel") << '_' << name << "_level_min", 1000000000));
-    if (min_level > 10 && min_level < 1000000) {
-      big_levels.push_back(min_level);
-    }
-    return min_level;
-  };
-  auto result = td_api::make_object<td_api::chatBoostFeatures>(
-      Auto(), get_min_boost_level("profile_bg_icon"), get_min_boost_level("bg_icon"),
-      get_min_boost_level("emoji_status"), get_min_boost_level("wallpaper"), get_min_boost_level("custom_wallpaper"),
-      get_min_boost_level("emoji_stickers"), get_min_boost_level("transcribe"),
-      get_min_boost_level("restrict_sponsored"));
-  for (int32 level = 1; level <= 10; level++) {
-    result->features_.push_back(get_chat_boost_level_features_object(for_megagroup, level));
-  }
-  td::unique(big_levels);
-  for (auto level : big_levels) {
-    result->features_.push_back(get_chat_boost_level_features_object(for_megagroup, level));
-  }
-  return result;
-}
-
-void BoostManager::get_boost_slots(Promise<td_api::object_ptr<td_api::chatBoostSlots>> &&promise) {
-  td_->create_handler<GetMyBoostsQuery>(std::move(promise))->send();
-}
-
-void BoostManager::get_dialog_boost_status(DialogId dialog_id,
-                                           Promise<td_api::object_ptr<td_api::chatBoostStatus>> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "get_dialog_boost_status"));
-  td_->create_handler<GetBoostsStatusQuery>(std::move(promise))->send(dialog_id);
-}
-
-void BoostManager::boost_dialog(DialogId dialog_id, vector<int32> slot_ids,
-                                Promise<td_api::object_ptr<td_api::chatBoostSlots>> &&promise) {
-  TRY_STATUS_PROMISE(promise,
-                     td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "boost_dialog"));
-  if (slot_ids.empty()) {
-    return get_boost_slots(std::move(promise));
-  }
-
-  td_->create_handler<ApplyBoostQuery>(std::move(promise))->send(dialog_id, slot_ids);
-}
-
-Result<std::pair<string, bool>> BoostManager::get_dialog_boost_link(DialogId dialog_id) {
-  TRY_STATUS(td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "get_dialog_boost_link"));
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return Status::Error(400, "Can't boost the chat");
-  }
-
-  SliceBuilder sb;
-  sb << LinkManager::get_t_me_url() << "boost";
-
-  auto username = td_->chat_manager_->get_channel_first_username(dialog_id.get_channel_id());
-  bool is_public = !username.empty();
-  if (is_public) {
-    sb << '/' << username;
-  } else {
-    sb << "?c=" << dialog_id.get_channel_id().get();
-  }
-
-  return std::make_pair(sb.as_cslice().str(), is_public);
-}
-
-void BoostManager::get_dialog_boost_link_info(Slice url, Promise<DialogBoostLinkInfo> &&promise) {
-  auto r_dialog_boost_link_info = LinkManager::get_dialog_boost_link_info(url);
-  if (r_dialog_boost_link_info.is_error()) {
-    return promise.set_error(Status::Error(400, r_dialog_boost_link_info.error().message()));
-  }
-
-  auto info = r_dialog_boost_link_info.move_as_ok();
-  auto query_promise = PromiseCreator::lambda(
-      [info, promise = std::move(promise)](Result<DialogId> &&result) mutable { promise.set_value(std::move(info)); });
-  td_->dialog_manager_->resolve_dialog(info.username, info.channel_id, std::move(query_promise));
-}
-
-td_api::object_ptr<td_api::chatBoostLinkInfo> BoostManager::get_chat_boost_link_info_object(
-    const DialogBoostLinkInfo &info) const {
-  CHECK(info.username.empty() == info.channel_id.is_valid());
-
-  bool is_public = !info.username.empty();
-  DialogId dialog_id =
-      is_public ? td_->dialog_manager_->get_resolved_dialog_by_username(info.username) : DialogId(info.channel_id);
-  return td_api::make_object<td_api::chatBoostLinkInfo>(
-      is_public, td_->dialog_manager_->get_chat_id_object(dialog_id, "chatBoostLinkInfo"));
-}
-
-void BoostManager::get_dialog_boosts(DialogId dialog_id, bool only_gift_codes, const string &offset, int32 limit,
-                                     Promise<td_api::object_ptr<td_api::foundChatBoosts>> &&promise) {
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "get_dialog_boosts"));
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-
-  td_->create_handler<GetBoostsListQuery>(std::move(promise))->send(dialog_id, only_gift_codes, offset, limit);
-}
-
-void BoostManager::get_user_dialog_boosts(DialogId dialog_id, UserId user_id,
-                                          Promise<td_api::object_ptr<td_api::foundChatBoosts>> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "get_user_dialog_boosts"));
-  if (!user_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "User not found"));
-  }
-
-  td_->create_handler<GetUserBoostsQuery>(std::move(promise))->send(dialog_id, user_id);
-}
-
-void BoostManager::on_update_dialog_boost(DialogId dialog_id, telegram_api::object_ptr<telegram_api::boost> &&boost) {
-  CHECK(td_->auth_manager_->is_bot());
-  if (!dialog_id.is_valid() || !td_->dialog_manager_->have_dialog_info_force(dialog_id, "on_update_dialog_boost")) {
-    LOG(ERROR) << "Receive updateBotChatBoost in " << dialog_id;
-    return;
-  }
-  auto chat_boost_object = get_chat_boost_object(td_, boost);
-  if (chat_boost_object == nullptr) {
-    LOG(ERROR) << "Receive wrong updateBotChatBoost in " << dialog_id << ": " << to_string(boost);
-    return;
-  }
-  td_->dialog_manager_->force_create_dialog(dialog_id, "on_update_dialog_boost", true);
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateChatBoost>(
-          td_->dialog_manager_->get_chat_id_object(dialog_id, "updateChatBoost"), std::move(chat_boost_object)));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BoostManager.h b/third-party/td/td/td/telegram/BoostManager.h
deleted file mode 100644
index 1ef8d31678..0000000000
--- a/third-party/td/td/td/telegram/BoostManager.h
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogBoostLinkInfo.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class BoostManager final : public Actor {
- public:
-  BoostManager(Td *td, ActorShared<> parent);
-
-  td_api::object_ptr<td_api::chatBoostLevelFeatures> get_chat_boost_level_features_object(bool for_megagroup,
-                                                                                          int32 level) const;
-
-  td_api::object_ptr<td_api::chatBoostFeatures> get_chat_boost_features_object(bool for_megagroup) const;
-
-  void get_boost_slots(Promise<td_api::object_ptr<td_api::chatBoostSlots>> &&promise);
-
-  void get_dialog_boost_status(DialogId dialog_id, Promise<td_api::object_ptr<td_api::chatBoostStatus>> &&promise);
-
-  void boost_dialog(DialogId dialog_id, vector<int32> slot_ids,
-                    Promise<td_api::object_ptr<td_api::chatBoostSlots>> &&promise);
-
-  Result<std::pair<string, bool>> get_dialog_boost_link(DialogId dialog_id);
-
-  void get_dialog_boost_link_info(Slice url, Promise<DialogBoostLinkInfo> &&promise);
-
-  td_api::object_ptr<td_api::chatBoostLinkInfo> get_chat_boost_link_info_object(const DialogBoostLinkInfo &info) const;
-
-  void get_dialog_boosts(DialogId dialog_id, bool only_gift_codes, const string &offset, int32 limit,
-                         Promise<td_api::object_ptr<td_api::foundChatBoosts>> &&promise);
-
-  void get_user_dialog_boosts(DialogId dialog_id, UserId user_id,
-                              Promise<td_api::object_ptr<td_api::foundChatBoosts>> &&promise);
-
-  void on_update_dialog_boost(DialogId dialog_id, telegram_api::object_ptr<telegram_api::boost> &&boost);
-
- private:
-  void tear_down() final;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotCommand.cpp b/third-party/td/td/td/telegram/BotCommand.cpp
deleted file mode 100644
index 9f215acc43..0000000000
--- a/third-party/td/td/td/telegram/BotCommand.cpp
+++ /dev/null
@@ -1,230 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BotCommand.h"
-
-#include "td/telegram/BotCommandScope.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-
-namespace td {
-
-class SetBotCommandsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetBotCommandsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BotCommandScope scope, const string &language_code, vector<BotCommand> &&commands) {
-    send_query(G()->net_query_creator().create(telegram_api::bots_setBotCommands(
-        scope.get_input_bot_command_scope(td_), language_code,
-        transform(commands, [](const BotCommand &command) { return command.get_input_bot_command(); }))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_setBotCommands>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!result_ptr.ok()) {
-      LOG(ERROR) << "Set bot commands request failed";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResetBotCommandsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ResetBotCommandsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BotCommandScope scope, const string &language_code) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_resetBotCommands(scope.get_input_bot_command_scope(td_), language_code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_resetBotCommands>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBotCommandsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::botCommands>> promise_;
-
- public:
-  explicit GetBotCommandsQuery(Promise<td_api::object_ptr<td_api::botCommands>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(BotCommandScope scope, const string &language_code) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_getBotCommands(scope.get_input_bot_command_scope(td_), language_code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_getBotCommands>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    BotCommands commands(td_->user_manager_->get_my_id(), result_ptr.move_as_ok());
-    promise_.set_value(commands.get_bot_commands_object(td_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-BotCommand::BotCommand(telegram_api::object_ptr<telegram_api::botCommand> &&bot_command) {
-  CHECK(bot_command != nullptr);
-  command_ = std::move(bot_command->command_);
-  description_ = std::move(bot_command->description_);
-}
-
-td_api::object_ptr<td_api::botCommand> BotCommand::get_bot_command_object() const {
-  return td_api::make_object<td_api::botCommand>(command_, description_);
-}
-
-telegram_api::object_ptr<telegram_api::botCommand> BotCommand::get_input_bot_command() const {
-  return telegram_api::make_object<telegram_api::botCommand>(command_, description_);
-}
-
-bool operator==(const BotCommand &lhs, const BotCommand &rhs) {
-  return lhs.command_ == rhs.command_ && lhs.description_ == rhs.description_;
-}
-
-BotCommands::BotCommands(UserId bot_user_id, vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands)
-    : bot_user_id_(bot_user_id) {
-  commands_ = transform(std::move(bot_commands), [](telegram_api::object_ptr<telegram_api::botCommand> &&bot_command) {
-    return BotCommand(std::move(bot_command));
-  });
-}
-
-td_api::object_ptr<td_api::botCommands> BotCommands::get_bot_commands_object(Td *td) const {
-  auto commands = transform(commands_, [](const auto &command) { return command.get_bot_command_object(); });
-  return td_api::make_object<td_api::botCommands>(
-      td->user_manager_->get_user_id_object(bot_user_id_, "get_bot_commands_object"), std::move(commands));
-}
-
-bool BotCommands::update_all_bot_commands(vector<BotCommands> &all_bot_commands, BotCommands &&bot_commands) {
-  auto is_from_bot = [bot_user_id = bot_commands.bot_user_id_](const BotCommands &commands) {
-    return commands.bot_user_id_ == bot_user_id;
-  };
-
-  if (bot_commands.commands_.empty()) {
-    return td::remove_if(all_bot_commands, is_from_bot);
-  }
-  auto it = std::find_if(all_bot_commands.begin(), all_bot_commands.end(), is_from_bot);
-  if (it != all_bot_commands.end()) {
-    if (*it != bot_commands) {
-      *it = std::move(bot_commands);
-      return true;
-    }
-    return false;
-  }
-  all_bot_commands.push_back(std::move(bot_commands));
-  return true;
-}
-
-bool operator==(const BotCommands &lhs, const BotCommands &rhs) {
-  return lhs.bot_user_id_ == rhs.bot_user_id_ && lhs.commands_ == rhs.commands_;
-}
-
-void set_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
-                  vector<td_api::object_ptr<td_api::botCommand>> &&commands, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, scope, BotCommandScope::get_bot_command_scope(td, std::move(scope_ptr)));
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-
-  vector<BotCommand> new_commands;
-  for (auto &command : commands) {
-    if (command == nullptr) {
-      return promise.set_error(Status::Error(400, "Command must be non-empty"));
-    }
-    if (!clean_input_string(command->command_)) {
-      return promise.set_error(Status::Error(400, "Command must be encoded in UTF-8"));
-    }
-    if (!clean_input_string(command->description_)) {
-      return promise.set_error(Status::Error(400, "Command description must be encoded in UTF-8"));
-    }
-
-    const size_t MAX_COMMAND_TEXT_LENGTH = 32;
-    command->command_ = trim(command->command_);
-    if (command->command_[0] == '/') {
-      command->command_ = command->command_.substr(1);
-    }
-    if (command->command_.empty()) {
-      return promise.set_error(Status::Error(400, "Command must be non-empty"));
-    }
-    if (utf8_length(command->command_) > MAX_COMMAND_TEXT_LENGTH) {
-      return promise.set_error(
-          Status::Error(400, PSLICE() << "Command length must not exceed " << MAX_COMMAND_TEXT_LENGTH));
-    }
-
-    const size_t MAX_COMMAND_DESCRIPTION_LENGTH = 256;
-    command->description_ = trim(command->description_);
-    auto description_length = utf8_length(command->description_);
-    if (command->description_.empty()) {
-      return promise.set_error(Status::Error(400, "Command description must be non-empty"));
-    }
-    if (description_length > MAX_COMMAND_DESCRIPTION_LENGTH) {
-      return promise.set_error(Status::Error(
-          400, PSLICE() << "Command description length must not exceed " << MAX_COMMAND_DESCRIPTION_LENGTH));
-    }
-
-    new_commands.emplace_back(std::move(command->command_), std::move(command->description_));
-  }
-
-  td->create_handler<SetBotCommandsQuery>(std::move(promise))->send(scope, language_code, std::move(new_commands));
-}
-
-void delete_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
-                     Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, scope, BotCommandScope::get_bot_command_scope(td, std::move(scope_ptr)));
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-
-  td->create_handler<ResetBotCommandsQuery>(std::move(promise))->send(scope, language_code);
-}
-
-void get_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
-                  Promise<td_api::object_ptr<td_api::botCommands>> &&promise) {
-  TRY_RESULT_PROMISE(promise, scope, BotCommandScope::get_bot_command_scope(td, std::move(scope_ptr)));
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-
-  td->create_handler<GetBotCommandsQuery>(std::move(promise))->send(scope, language_code);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotCommand.h b/third-party/td/td/td/telegram/BotCommand.h
deleted file mode 100644
index 0c5d85b179..0000000000
--- a/third-party/td/td/td/telegram/BotCommand.h
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Td;
-
-class BotCommand {
-  string command_;
-  string description_;
-
-  friend bool operator==(const BotCommand &lhs, const BotCommand &rhs);
-
- public:
-  BotCommand() = default;
-  BotCommand(string command, string description) : command_(std::move(command)), description_(std::move(description)) {
-  }
-  explicit BotCommand(telegram_api::object_ptr<telegram_api::botCommand> &&bot_command);
-
-  td_api::object_ptr<td_api::botCommand> get_bot_command_object() const;
-
-  telegram_api::object_ptr<telegram_api::botCommand> get_input_bot_command() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(command_, storer);
-    td::store(description_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(command_, parser);
-    td::parse(description_, parser);
-  }
-};
-
-bool operator==(const BotCommand &lhs, const BotCommand &rhs);
-
-inline bool operator!=(const BotCommand &lhs, const BotCommand &rhs) {
-  return !(lhs == rhs);
-}
-
-class BotCommands {
-  UserId bot_user_id_;
-  vector<BotCommand> commands_;
-
-  friend bool operator==(const BotCommands &lhs, const BotCommands &rhs);
-
- public:
-  BotCommands() = default;
-
-  BotCommands(UserId bot_user_id, vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands);
-
-  td_api::object_ptr<td_api::botCommands> get_bot_commands_object(Td *td) const;
-
-  static bool update_all_bot_commands(vector<BotCommands> &all_bot_commands, BotCommands &&bot_commands);
-
-  UserId get_bot_user_id() const {
-    return bot_user_id_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(bot_user_id_, storer);
-    td::store(commands_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(bot_user_id_, parser);
-    td::parse(commands_, parser);
-  }
-};
-
-bool operator==(const BotCommands &lhs, const BotCommands &rhs);
-
-inline bool operator!=(const BotCommands &lhs, const BotCommands &rhs) {
-  return !(lhs == rhs);
-}
-
-void set_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
-                  vector<td_api::object_ptr<td_api::botCommand>> &&commands, Promise<Unit> &&promise);
-
-void delete_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
-                     Promise<Unit> &&promise);
-
-void get_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
-                  Promise<td_api::object_ptr<td_api::botCommands>> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotCommandScope.cpp b/third-party/td/td/td/telegram/BotCommandScope.cpp
deleted file mode 100644
index cb03c820b4..0000000000
--- a/third-party/td/td/td/telegram/BotCommandScope.cpp
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BotCommandScope.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-namespace td {
-
-BotCommandScope::BotCommandScope(Type type, DialogId dialog_id, UserId user_id)
-    : type_(type), dialog_id_(dialog_id), user_id_(user_id) {
-}
-
-Result<BotCommandScope> BotCommandScope::get_bot_command_scope(Td *td,
-                                                               td_api::object_ptr<td_api::BotCommandScope> scope_ptr) {
-  if (scope_ptr == nullptr) {
-    return BotCommandScope(Type::Default);
-  }
-
-  CHECK(td->auth_manager_->is_bot());
-  Type type;
-  DialogId dialog_id;
-  UserId user_id;
-  switch (scope_ptr->get_id()) {
-    case td_api::botCommandScopeDefault::ID:
-      return BotCommandScope(Type::Default);
-    case td_api::botCommandScopeAllPrivateChats::ID:
-      return BotCommandScope(Type::AllUsers);
-    case td_api::botCommandScopeAllGroupChats::ID:
-      return BotCommandScope(Type::AllChats);
-    case td_api::botCommandScopeAllChatAdministrators::ID:
-      return BotCommandScope(Type::AllChatAdministrators);
-    case td_api::botCommandScopeChat::ID: {
-      auto scope = td_api::move_object_as<td_api::botCommandScopeChat>(scope_ptr);
-      type = Type::Dialog;
-      dialog_id = DialogId(scope->chat_id_);
-      break;
-    }
-    case td_api::botCommandScopeChatAdministrators::ID: {
-      auto scope = td_api::move_object_as<td_api::botCommandScopeChatAdministrators>(scope_ptr);
-      type = Type::DialogAdministrators;
-      dialog_id = DialogId(scope->chat_id_);
-      break;
-    }
-    case td_api::botCommandScopeChatMember::ID: {
-      auto scope = td_api::move_object_as<td_api::botCommandScopeChatMember>(scope_ptr);
-      type = Type::DialogParticipant;
-      dialog_id = DialogId(scope->chat_id_);
-      user_id = UserId(scope->user_id_);
-      TRY_STATUS(td->user_manager_->get_input_user(user_id));
-      break;
-    }
-    default:
-      UNREACHABLE();
-      return BotCommandScope(Type::Default);
-  }
-
-  TRY_STATUS(td->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "get_bot_command_scope"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (type != Type::Dialog) {
-        return Status::Error(400, "Can't use specified scope in private chats");
-      }
-      break;
-    case DialogType::Chat:
-      // ok
-      break;
-    case DialogType::Channel:
-      if (td->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id())) {
-        return Status::Error(400, "Can't change commands in channel chats");
-      }
-      break;
-    case DialogType::SecretChat:
-    default:
-      UNREACHABLE();
-  }
-
-  return BotCommandScope(type, dialog_id, user_id);
-}
-
-telegram_api::object_ptr<telegram_api::BotCommandScope> BotCommandScope::get_input_bot_command_scope(
-    const Td *td) const {
-  auto input_peer =
-      dialog_id_.is_valid() ? td->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read) : nullptr;
-  auto r_input_user = td->user_manager_->get_input_user(user_id_);
-  auto input_user = r_input_user.is_ok() ? r_input_user.move_as_ok() : nullptr;
-  switch (type_) {
-    case Type::Default:
-      return telegram_api::make_object<telegram_api::botCommandScopeDefault>();
-    case Type::AllUsers:
-      return telegram_api::make_object<telegram_api::botCommandScopeUsers>();
-    case Type::AllChats:
-      return telegram_api::make_object<telegram_api::botCommandScopeChats>();
-    case Type::AllChatAdministrators:
-      return telegram_api::make_object<telegram_api::botCommandScopeChatAdmins>();
-    case Type::Dialog:
-      CHECK(input_peer != nullptr);
-      return telegram_api::make_object<telegram_api::botCommandScopePeer>(std::move(input_peer));
-    case Type::DialogAdministrators:
-      CHECK(input_peer != nullptr);
-      return telegram_api::make_object<telegram_api::botCommandScopePeerAdmins>(std::move(input_peer));
-    case Type::DialogParticipant:
-      CHECK(input_peer != nullptr);
-      CHECK(input_user != nullptr);
-      return telegram_api::make_object<telegram_api::botCommandScopePeerUser>(std::move(input_peer),
-                                                                              std::move(input_user));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotCommandScope.h b/third-party/td/td/td/telegram/BotCommandScope.h
deleted file mode 100644
index 6b6db9c14b..0000000000
--- a/third-party/td/td/td/telegram/BotCommandScope.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class BotCommandScope {
-  enum class Type : int32 {
-    Default,
-    AllUsers,
-    AllChats,
-    AllChatAdministrators,
-    Dialog,
-    DialogAdministrators,
-    DialogParticipant
-  };
-  Type type_ = Type::Default;
-  DialogId dialog_id_;
-  UserId user_id_;
-
-  explicit BotCommandScope(Type type, DialogId dialog_id = DialogId(), UserId user_id = UserId());
-
- public:
-  static Result<BotCommandScope> get_bot_command_scope(Td *td, td_api::object_ptr<td_api::BotCommandScope> scope_ptr);
-
-  telegram_api::object_ptr<telegram_api::BotCommandScope> get_input_bot_command_scope(const Td *td) const;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotInfoManager.cpp b/third-party/td/td/td/telegram/BotInfoManager.cpp
deleted file mode 100644
index d3b2c4fa09..0000000000
--- a/third-party/td/td/td/telegram/BotInfoManager.cpp
+++ /dev/null
@@ -1,1076 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BotInfoManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/StoryContent.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-#include <algorithm>
-#include <type_traits>
-
-namespace td {
-
-class GetAdminedBotsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::users>> promise_;
-  UserId bot_user_id_;
-
- public:
-  explicit GetAdminedBotsQuery(Promise<td_api::object_ptr<td_api::users>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::bots_getAdminedBots()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_getAdminedBots>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto users = result_ptr.move_as_ok();
-    auto user_ids = td_->user_manager_->get_user_ids(std::move(users), "GetAdminedBotsQuery");
-    promise_.set_value(td_->user_manager_->get_users_object(-1, user_ids));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetBotGroupDefaultAdminRightsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetBotGroupDefaultAdminRightsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(AdministratorRights administrator_rights) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_setBotGroupDefaultAdminRights(administrator_rights.get_chat_admin_rights()), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_setBotGroupDefaultAdminRights>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to set group default administrator rights";
-    td_->user_manager_->invalidate_user_full(td_->user_manager_->get_my_id());
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "RIGHTS_NOT_MODIFIED") {
-      return promise_.set_value(Unit());
-    }
-    td_->user_manager_->invalidate_user_full(td_->user_manager_->get_my_id());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetBotBroadcastDefaultAdminRightsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetBotBroadcastDefaultAdminRightsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(AdministratorRights administrator_rights) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_setBotBroadcastDefaultAdminRights(administrator_rights.get_chat_admin_rights()), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_setBotBroadcastDefaultAdminRights>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to set channel default administrator rights";
-    td_->user_manager_->invalidate_user_full(td_->user_manager_->get_my_id());
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "RIGHTS_NOT_MODIFIED") {
-      return promise_.set_value(Unit());
-    }
-    td_->user_manager_->invalidate_user_full(td_->user_manager_->get_my_id());
-    promise_.set_error(std::move(status));
-  }
-};
-
-static td_api::object_ptr<td_api::botMediaPreview> convert_bot_media_preview(
-    Td *td, telegram_api::object_ptr<telegram_api::botPreviewMedia> media, UserId bot_user_id,
-    vector<FileId> &file_ids) {
-  auto content = get_story_content(td, std::move(media->media_), DialogId(bot_user_id));
-  if (content == nullptr) {
-    LOG(ERROR) << "Receive invalid media preview for " << bot_user_id;
-    return nullptr;
-  }
-  append(file_ids, get_story_content_file_ids(td, content.get()));
-  return td_api::make_object<td_api::botMediaPreview>(max(media->date_, 0),
-                                                      get_story_content_object(td, content.get()));
-}
-
-class GetPreviewMediasQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::botMediaPreviews>> promise_;
-  UserId bot_user_id_;
-
- public:
-  explicit GetPreviewMediasQuery(Promise<td_api::object_ptr<td_api::botMediaPreviews>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, telegram_api::object_ptr<telegram_api::InputUser> input_user) {
-    bot_user_id_ = bot_user_id;
-    send_query(
-        G()->net_query_creator().create(telegram_api::bots_getPreviewMedias(std::move(input_user)), {{bot_user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_getPreviewMedias>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPreviewMediasQuery: " << to_string(ptr);
-    vector<td_api::object_ptr<td_api::botMediaPreview>> previews;
-    vector<FileId> file_ids;
-    for (auto &media : ptr) {
-      auto preview = convert_bot_media_preview(td_, std::move(media), bot_user_id_, file_ids);
-      if (preview != nullptr) {
-        previews.push_back(std::move(preview));
-      }
-    }
-    if (!file_ids.empty()) {
-      auto file_source_id = td_->bot_info_manager_->get_bot_media_preview_file_source_id(bot_user_id_);
-      for (auto file_id : file_ids) {
-        td_->file_manager_->add_file_source(file_id, file_source_id, "GetPreviewMediasQuery");
-      }
-    }
-    td_->user_manager_->on_update_bot_has_preview_medias(bot_user_id_, !previews.empty());
-    promise_.set_value(td_api::make_object<td_api::botMediaPreviews>(std::move(previews)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPreviewInfoQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::botMediaPreviewInfo>> promise_;
-  UserId bot_user_id_;
-  string language_code_;
-
- public:
-  explicit GetPreviewInfoQuery(Promise<td_api::object_ptr<td_api::botMediaPreviewInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, telegram_api::object_ptr<telegram_api::InputUser> input_user,
-            const string &language_code) {
-    bot_user_id_ = bot_user_id;
-    language_code_ = language_code;
-    send_query(G()->net_query_creator().create(telegram_api::bots_getPreviewInfo(std::move(input_user), language_code),
-                                               {{bot_user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_getPreviewInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPreviewInfoQuery: " << to_string(ptr);
-    vector<td_api::object_ptr<td_api::botMediaPreview>> previews;
-    vector<FileId> file_ids;
-    for (auto &media : ptr->media_) {
-      auto preview = convert_bot_media_preview(td_, std::move(media), bot_user_id_, file_ids);
-      if (preview != nullptr) {
-        previews.push_back(std::move(preview));
-      }
-    }
-    if (!file_ids.empty()) {
-      auto file_source_id =
-          td_->bot_info_manager_->get_bot_media_preview_info_file_source_id(bot_user_id_, language_code_);
-      for (auto file_id : file_ids) {
-        td_->file_manager_->add_file_source(file_id, file_source_id, "GetPreviewInfoQuery");
-      }
-    }
-    promise_.set_value(
-        td_api::make_object<td_api::botMediaPreviewInfo>(std::move(previews), std::move(ptr->lang_codes_)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BotInfoManager::AddPreviewMediaQuery final : public Td::ResultHandler {
-  unique_ptr<PendingBotMediaPreview> pending_preview_;
-
- public:
-  void send(telegram_api::object_ptr<telegram_api::InputUser> input_user,
-            unique_ptr<PendingBotMediaPreview> pending_preview,
-            telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-    pending_preview_ = std::move(pending_preview);
-    CHECK(pending_preview_ != nullptr);
-    CHECK(pending_preview_->file_upload_id_.is_valid());
-
-    const StoryContent *content = pending_preview_->content_.get();
-    CHECK(input_file != nullptr);
-    auto input_media = get_story_content_input_media(td_, content, std::move(input_file));
-    CHECK(input_media != nullptr);
-    if (pending_preview_->edited_file_id_.is_valid()) {
-      auto edited_input_media = td_->bot_info_manager_->get_fake_input_media(pending_preview_->edited_file_id_);
-      if (edited_input_media == nullptr) {
-        return on_error(Status::Error(400, "Wrong media to edit specified"));
-      }
-      send_query(G()->net_query_creator().create(
-          telegram_api::bots_editPreviewMedia(std::move(input_user), pending_preview_->language_code_,
-                                              std::move(edited_input_media), std::move(input_media)),
-          {{pending_preview_->bot_user_id_}}));
-    } else {
-      send_query(G()->net_query_creator().create(
-          telegram_api::bots_addPreviewMedia(std::move(input_user), pending_preview_->language_code_,
-                                             std::move(input_media)),
-          {{pending_preview_->bot_user_id_}}));
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::bots_addPreviewMedia::ReturnType,
-                               telegram_api::bots_editPreviewMedia::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::bots_addPreviewMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->file_manager_->delete_partial_remote_location(pending_preview_->file_upload_id_);
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for AddPreviewMediaQuery: " << to_string(ptr);
-    auto bot_user_id = pending_preview_->bot_user_id_;
-    vector<FileId> file_ids;
-    auto preview = convert_bot_media_preview(td_, std::move(ptr), bot_user_id, file_ids);
-    if (preview == nullptr) {
-      LOG(ERROR) << "Receive invalid sent media preview";
-      return pending_preview_->promise_.set_error(Status::Error(500, "Receive invalid preview"));
-    }
-    if (!file_ids.empty()) {
-      auto file_source_id = td_->bot_info_manager_->get_bot_media_preview_info_file_source_id(
-          bot_user_id, pending_preview_->language_code_);
-      for (auto file_id : file_ids) {
-        td_->file_manager_->add_file_source(file_id, file_source_id, "AddPreviewMediaQuery");
-      }
-    }
-    if (pending_preview_->language_code_.empty()) {
-      td_->user_manager_->on_update_bot_has_preview_medias(bot_user_id, true);
-    }
-    pending_preview_->promise_.set_value(std::move(preview));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for AddPreviewMediaQuery: " << status;
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      td_->bot_info_manager_->on_add_bot_media_preview_file_parts_missing(std::move(pending_preview_),
-                                                                          std::move(bad_parts));
-      return;
-    }
-    td_->file_manager_->delete_partial_remote_location(pending_preview_->file_upload_id_);
-    pending_preview_->promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderPreviewMediasQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId bot_user_id_;
-
- public:
-  explicit ReorderPreviewMediasQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, telegram_api::object_ptr<telegram_api::InputUser> input_user,
-            const string &language_code, vector<telegram_api::object_ptr<telegram_api::InputMedia>> input_media) {
-    bot_user_id_ = bot_user_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_reorderPreviewMedias(std::move(input_user), language_code, std::move(input_media)),
-        {{bot_user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_reorderPreviewMedias>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_update_bot_has_preview_medias(bot_user_id_, true);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeletePreviewMediaQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId bot_user_id_;
-
- public:
-  explicit DeletePreviewMediaQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, telegram_api::object_ptr<telegram_api::InputUser> input_user,
-            const string &language_code, vector<telegram_api::object_ptr<telegram_api::InputMedia>> input_media) {
-    bot_user_id_ = bot_user_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_deletePreviewMedia(std::move(input_user), language_code, std::move(input_media)),
-        {{bot_user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_deletePreviewMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->reload_user_full(bot_user_id_, std::move(promise_), "DeletePreviewMediaQuery");
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CanBotSendMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit CanBotSendMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id) {
-    auto r_input_user = td_->user_manager_->get_input_user(bot_user_id);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-    send_query(
-        G()->net_query_creator().create(telegram_api::bots_canSendMessage(r_input_user.move_as_ok()), {{bot_user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_canSendMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (result_ptr.ok()) {
-      promise_.set_value(Unit());
-    } else {
-      promise_.set_error(Status::Error(404, "Not Found"));
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AllowBotSendMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit AllowBotSendMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id) {
-    auto r_input_user = td_->user_manager_->get_input_user(bot_user_id);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-    send_query(G()->net_query_creator().create(telegram_api::bots_allowSendMessage(r_input_user.move_as_ok()),
-                                               {{bot_user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_allowSendMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for AllowBotSendMessageQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-static Result<telegram_api::object_ptr<telegram_api::InputUser>> get_bot_input_user(const Td *td, UserId bot_user_id) {
-  if (td->auth_manager_->is_bot()) {
-    if (bot_user_id != UserId() && bot_user_id != td->user_manager_->get_my_id()) {
-      return Status::Error(400, "Invalid bot user identifier specified");
-    }
-  } else {
-    TRY_RESULT(bot_data, td->user_manager_->get_bot_data(bot_user_id));
-    if (!bot_data.can_be_edited) {
-      return Status::Error(400, "The bot can't be edited");
-    }
-    return td->user_manager_->get_input_user(bot_user_id);
-  }
-  return nullptr;
-}
-
-class SetBotInfoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId bot_user_id_;
-  bool set_name_ = false;
-  bool set_info_ = false;
-
-  void invalidate_bot_info() {
-    if (set_info_) {
-      td_->user_manager_->invalidate_user_full(bot_user_id_);
-    }
-  }
-
- public:
-  explicit SetBotInfoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, const string &language_code, bool set_name, const string &name, bool set_description,
-            const string &description, bool set_about, const string &about) {
-    int32 flags = 0;
-    if (set_name) {
-      flags |= telegram_api::bots_setBotInfo::NAME_MASK;
-    }
-    if (set_about) {
-      flags |= telegram_api::bots_setBotInfo::ABOUT_MASK;
-    }
-    if (set_description) {
-      flags |= telegram_api::bots_setBotInfo::DESCRIPTION_MASK;
-    }
-    auto r_input_user = get_bot_input_user(td_, bot_user_id);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-    if (r_input_user.ok() != nullptr) {
-      flags |= telegram_api::bots_setBotInfo::BOT_MASK;
-      bot_user_id_ = bot_user_id;
-    } else {
-      bot_user_id_ = td_->user_manager_->get_my_id();
-    }
-    set_name_ = set_name;
-    set_info_ = set_about || set_description;
-    invalidate_bot_info();
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_setBotInfo(flags, r_input_user.move_as_ok(), language_code, name, about, description),
-        {{bot_user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_setBotInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(WARNING, !result) << "Failed to set bot info";
-    if (set_info_) {
-      invalidate_bot_info();
-      if (!td_->auth_manager_->is_bot()) {
-        return td_->user_manager_->reload_user_full(bot_user_id_, std::move(promise_), "SetBotInfoQuery");
-      }
-    }
-    if (set_name_) {
-      return td_->user_manager_->reload_user(bot_user_id_, std::move(promise_), "SetBotInfoQuery");
-    }
-    // invalidation is enough for bots if name wasn't changed
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    invalidate_bot_info();
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBotInfoQuery final : public Td::ResultHandler {
-  vector<Promise<string>> name_promises_;
-  vector<Promise<string>> description_promises_;
-  vector<Promise<string>> about_promises_;
-
- public:
-  GetBotInfoQuery(vector<Promise<string>> name_promises, vector<Promise<string>> description_promises,
-                  vector<Promise<string>> about_promises)
-      : name_promises_(std::move(name_promises))
-      , description_promises_(std::move(description_promises))
-      , about_promises_(std::move(about_promises)) {
-  }
-
-  void send(UserId bot_user_id, const string &language_code) {
-    int32 flags = 0;
-    auto r_input_user = get_bot_input_user(td_, bot_user_id);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-    if (r_input_user.ok() != nullptr) {
-      flags |= telegram_api::bots_getBotInfo::BOT_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_getBotInfo(flags, r_input_user.move_as_ok(), language_code), {{bot_user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_getBotInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetBotInfoQuery: " << to_string(result);
-    for (auto &promise : name_promises_) {
-      promise.set_value(string(result->name_));
-    }
-    for (auto &promise : description_promises_) {
-      promise.set_value(string(result->description_));
-    }
-    for (auto &promise : about_promises_) {
-      promise.set_value(string(result->about_));
-    }
-  }
-
-  void on_error(Status status) final {
-    fail_promises(name_promises_, status.clone());
-    fail_promises(description_promises_, status.clone());
-    fail_promises(about_promises_, status.clone());
-  }
-};
-
-class SetCustomVerificationQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SetCustomVerificationQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> input_user, DialogId dialog_id, bool is_verified,
-            const string &custom_description) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = 0;
-    if (input_user != nullptr) {
-      flags |= telegram_api::bots_setCustomVerification::BOT_MASK;
-    }
-    if (!custom_description.empty()) {
-      flags |= telegram_api::bots_setCustomVerification::CUSTOM_DESCRIPTION_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_setCustomVerification(flags, is_verified, std::move(input_user), std::move(input_peer),
-                                                 custom_description),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_setCustomVerification>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SetCustomVerificationQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BotInfoManager::UploadMediaCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->bot_info_manager(), &BotInfoManager::on_upload_bot_media_preview, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->bot_info_manager(), &BotInfoManager::on_upload_bot_media_preview_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-BotInfoManager::BotInfoManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_media_callback_ = std::make_shared<UploadMediaCallback>();
-}
-
-BotInfoManager::~BotInfoManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), bot_media_preview_file_source_ids_,
-                                              bot_media_preview_info_file_source_ids_);
-}
-
-void BotInfoManager::tear_down() {
-  parent_.reset();
-}
-
-void BotInfoManager::hangup() {
-  auto set_queries = std::move(pending_set_bot_info_queries_);
-  auto get_queries = std::move(pending_get_bot_info_queries_);
-
-  for (auto &query : set_queries) {
-    query.promise_.set_error(Global::request_aborted_error());
-  }
-  for (auto &query : get_queries) {
-    query.promise_.set_error(Global::request_aborted_error());
-  }
-
-  stop();
-}
-
-void BotInfoManager::timeout_expired() {
-  auto set_queries = std::move(pending_set_bot_info_queries_);
-  reset_to_empty(pending_set_bot_info_queries_);
-  auto get_queries = std::move(pending_get_bot_info_queries_);
-  reset_to_empty(pending_get_bot_info_queries_);
-
-  std::stable_sort(set_queries.begin(), set_queries.end(),
-                   [](const PendingSetBotInfoQuery &lhs, const PendingSetBotInfoQuery &rhs) {
-                     return lhs.bot_user_id_.get() < rhs.bot_user_id_.get() ||
-                            (lhs.bot_user_id_ == rhs.bot_user_id_ && lhs.language_code_ < rhs.language_code_);
-                   });
-  for (size_t i = 0; i < set_queries.size();) {
-    bool has_value[3] = {false, false, false};
-    string values[3];
-    vector<Promise<Unit>> promises;
-    size_t j = i;
-    while (j < set_queries.size() && set_queries[i].bot_user_id_ == set_queries[j].bot_user_id_ &&
-           set_queries[i].language_code_ == set_queries[j].language_code_) {
-      has_value[set_queries[j].type_] = true;
-      values[set_queries[j].type_] = std::move(set_queries[j].value_);
-      promises.push_back(std::move(set_queries[j].promise_));
-      j++;
-    }
-    auto promise = PromiseCreator::lambda([promises = std::move(promises)](Result<Unit> &&result) mutable {
-      if (result.is_error()) {
-        fail_promises(promises, result.move_as_error());
-      } else {
-        set_promises(promises);
-      }
-    });
-    td_->create_handler<SetBotInfoQuery>(std::move(promise))
-        ->send(set_queries[i].bot_user_id_, set_queries[i].language_code_, has_value[0], values[0], has_value[1],
-               values[1], has_value[2], values[2]);
-    i = j;
-  }
-
-  std::stable_sort(get_queries.begin(), get_queries.end(),
-                   [](const PendingGetBotInfoQuery &lhs, const PendingGetBotInfoQuery &rhs) {
-                     return lhs.bot_user_id_.get() < rhs.bot_user_id_.get() ||
-                            (lhs.bot_user_id_ == rhs.bot_user_id_ && lhs.language_code_ < rhs.language_code_);
-                   });
-  for (size_t i = 0; i < get_queries.size();) {
-    vector<Promise<string>> promises[3];
-    size_t j = i;
-    while (j < get_queries.size() && get_queries[i].bot_user_id_ == get_queries[j].bot_user_id_ &&
-           get_queries[i].language_code_ == get_queries[j].language_code_) {
-      promises[get_queries[j].type_].push_back(std::move(get_queries[j].promise_));
-      j++;
-    }
-    td_->create_handler<GetBotInfoQuery>(std::move(promises[0]), std::move(promises[1]), std::move(promises[2]))
-        ->send(get_queries[i].bot_user_id_, get_queries[i].language_code_);
-    i = j;
-  }
-}
-
-void BotInfoManager::get_owned_bots(Promise<td_api::object_ptr<td_api::users>> &&promise) {
-  td_->create_handler<GetAdminedBotsQuery>(std::move(promise))->send();
-}
-
-void BotInfoManager::set_default_group_administrator_rights(AdministratorRights administrator_rights,
-                                                            Promise<Unit> &&promise) {
-  td_->user_manager_->invalidate_user_full(td_->user_manager_->get_my_id());
-  td_->create_handler<SetBotGroupDefaultAdminRightsQuery>(std::move(promise))->send(administrator_rights);
-}
-
-void BotInfoManager::set_default_channel_administrator_rights(AdministratorRights administrator_rights,
-                                                              Promise<Unit> &&promise) {
-  td_->user_manager_->invalidate_user_full(td_->user_manager_->get_my_id());
-  td_->create_handler<SetBotBroadcastDefaultAdminRightsQuery>(std::move(promise))->send(administrator_rights);
-}
-
-void BotInfoManager::can_bot_send_messages(UserId bot_user_id, Promise<Unit> &&promise) {
-  td_->create_handler<CanBotSendMessageQuery>(std::move(promise))->send(bot_user_id);
-}
-
-void BotInfoManager::allow_bot_to_send_messages(UserId bot_user_id, Promise<Unit> &&promise) {
-  td_->create_handler<AllowBotSendMessageQuery>(std::move(promise))->send(bot_user_id);
-}
-
-FileSourceId BotInfoManager::get_bot_media_preview_file_source_id(UserId bot_user_id) {
-  if (!bot_user_id.is_valid()) {
-    return FileSourceId();
-  }
-
-  auto &source_id = bot_media_preview_file_source_ids_[bot_user_id];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_bot_media_preview_file_source(bot_user_id);
-  }
-  VLOG(file_references) << "Return " << source_id << " for media previews of " << bot_user_id;
-  return source_id;
-}
-
-FileSourceId BotInfoManager::get_bot_media_preview_info_file_source_id(UserId bot_user_id,
-                                                                       const string &language_code) {
-  if (!bot_user_id.is_valid()) {
-    return FileSourceId();
-  }
-
-  auto &source_id = bot_media_preview_info_file_source_ids_[{bot_user_id, language_code}];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_bot_media_preview_info_file_source(bot_user_id, language_code);
-  }
-  VLOG(file_references) << "Return " << source_id << " for media preview info of " << bot_user_id << " for "
-                        << language_code;
-  return source_id;
-}
-
-Result<telegram_api::object_ptr<telegram_api::InputUser>> BotInfoManager::get_media_preview_bot_input_user(
-    UserId user_id, bool can_be_edited) {
-  TRY_RESULT(bot_data, td_->user_manager_->get_bot_data(user_id));
-  if (can_be_edited && !bot_data.can_be_edited) {
-    return Status::Error(400, "Bot must be owned");
-  }
-  if (!bot_data.has_main_app) {
-    return Status::Error(400, "Bot must have the main Mini App");
-  }
-  return td_->user_manager_->get_input_user(user_id);
-}
-
-Status BotInfoManager::validate_bot_media_preview_language_code(const string &language_code) {
-  if (language_code.empty()) {
-    return Status::OK();
-  }
-  if (language_code.size() < 2 || language_code[0] == '-' || language_code[1] == '-') {
-    return Status::Error(400, "Invalid language code specified");
-  }
-  for (auto c : language_code) {
-    if ((c < 'a' || c > 'z') && c != '-') {
-      return Status::Error(400, "Invalid language code specified");
-    }
-  }
-  return Status::OK();
-}
-
-void BotInfoManager::get_bot_media_previews(UserId bot_user_id,
-                                            Promise<td_api::object_ptr<td_api::botMediaPreviews>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_media_preview_bot_input_user(bot_user_id));
-  td_->create_handler<GetPreviewMediasQuery>(std::move(promise))->send(bot_user_id, std::move(input_user));
-}
-
-void BotInfoManager::get_bot_media_preview_info(UserId bot_user_id, const string &language_code,
-                                                Promise<td_api::object_ptr<td_api::botMediaPreviewInfo>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_media_preview_bot_input_user(bot_user_id, true));
-  TRY_STATUS_PROMISE(promise, validate_bot_media_preview_language_code(language_code));
-  td_->create_handler<GetPreviewInfoQuery>(std::move(promise))->send(bot_user_id, std::move(input_user), language_code);
-}
-
-void BotInfoManager::reload_bot_media_previews(UserId bot_user_id, Promise<Unit> &&promise) {
-  get_bot_media_previews(
-      bot_user_id, PromiseCreator::lambda([promise = std::move(promise)](
-                                              Result<td_api::object_ptr<td_api::botMediaPreviews>> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(Unit());
-        }
-      }));
-}
-
-void BotInfoManager::reload_bot_media_preview_info(UserId bot_user_id, const string &language_code,
-                                                   Promise<Unit> &&promise) {
-  get_bot_media_preview_info(
-      bot_user_id, language_code,
-      PromiseCreator::lambda(
-          [promise = std::move(promise)](Result<td_api::object_ptr<td_api::botMediaPreviewInfo>> result) mutable {
-            if (result.is_error()) {
-              promise.set_error(result.move_as_error());
-            } else {
-              promise.set_value(Unit());
-            }
-          }));
-}
-
-void BotInfoManager::add_bot_media_preview(UserId bot_user_id, const string &language_code,
-                                           td_api::object_ptr<td_api::InputStoryContent> &&input_content,
-                                           Promise<td_api::object_ptr<td_api::botMediaPreview>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_media_preview_bot_input_user(bot_user_id, true));
-  TRY_STATUS_PROMISE(promise, validate_bot_media_preview_language_code(language_code));
-  TRY_RESULT_PROMISE(promise, content, get_input_story_content(td_, std::move(input_content), DialogId(bot_user_id)));
-  auto pending_preview = make_unique<PendingBotMediaPreview>();
-  pending_preview->bot_user_id_ = bot_user_id;
-  pending_preview->language_code_ = language_code;
-  pending_preview->content_ = std::move(content);
-  pending_preview->file_upload_id_ = FileUploadId{get_story_content_any_file_id(pending_preview->content_.get()),
-                                                  FileManager::get_internal_upload_id()};
-  pending_preview->upload_order_ = ++bot_media_preview_upload_order_;
-  pending_preview->promise_ = std::move(promise);
-
-  do_add_bot_media_preview(std::move(pending_preview), {});
-}
-
-void BotInfoManager::edit_bot_media_preview(UserId bot_user_id, const string &language_code, FileId file_id,
-                                            td_api::object_ptr<td_api::InputStoryContent> &&input_content,
-                                            Promise<td_api::object_ptr<td_api::botMediaPreview>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_media_preview_bot_input_user(bot_user_id, true));
-  TRY_STATUS_PROMISE(promise, validate_bot_media_preview_language_code(language_code));
-  TRY_RESULT_PROMISE(promise, content, get_input_story_content(td_, std::move(input_content), DialogId(bot_user_id)));
-  auto input_media = get_fake_input_media(file_id);
-  if (input_media == nullptr) {
-    return promise.set_error(Status::Error(400, "Wrong media to edit specified"));
-  }
-  auto pending_preview = make_unique<PendingBotMediaPreview>();
-  pending_preview->edited_file_id_ = file_id;
-  pending_preview->bot_user_id_ = bot_user_id;
-  pending_preview->language_code_ = language_code;
-  pending_preview->content_ = std::move(content);
-  pending_preview->file_upload_id_ = FileUploadId{get_story_content_any_file_id(pending_preview->content_.get()),
-                                                  FileManager::get_internal_upload_id()};
-  pending_preview->upload_order_ = ++bot_media_preview_upload_order_;
-  pending_preview->promise_ = std::move(promise);
-
-  do_add_bot_media_preview(std::move(pending_preview), {});
-}
-
-void BotInfoManager::do_add_bot_media_preview(unique_ptr<PendingBotMediaPreview> &&pending_preview,
-                                              vector<int> bad_parts) {
-  auto file_upload_id = pending_preview->file_upload_id_;
-  auto upload_order = pending_preview->upload_order_;
-  CHECK(file_upload_id.is_valid());
-
-  LOG(INFO) << "Ask to upload " << file_upload_id << " with bad parts " << bad_parts;
-  bool is_inserted = being_uploaded_files_.emplace(file_upload_id, std::move(pending_preview)).second;
-  CHECK(is_inserted);
-  // need to call resume_upload synchronously to make upload process consistent with being_uploaded_files_
-  // and to send is_uploading_active == true in response
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_media_callback_, 1, upload_order);
-}
-
-void BotInfoManager::on_add_bot_media_preview_file_parts_missing(unique_ptr<PendingBotMediaPreview> &&pending_preview,
-                                                                 vector<int> &&bad_parts) {
-  do_add_bot_media_preview(std::move(pending_preview), std::move(bad_parts));
-}
-
-void BotInfoManager::on_upload_bot_media_preview(FileUploadId file_upload_id,
-                                                 telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Bot media preview " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto pending_preview = std::move(it->second);
-  being_uploaded_files_.erase(it);
-  CHECK(file_upload_id == pending_preview->file_upload_id_);
-
-  FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  CHECK(!file_view.is_encrypted());
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (input_file == nullptr && main_remote_location != nullptr) {
-    if (main_remote_location->is_web()) {
-      return pending_preview->promise_.set_error(Status::Error(400, "Can't use web photo as a preview"));
-    }
-    if (pending_preview->was_reuploaded_) {
-      return pending_preview->promise_.set_error(Status::Error(500, "Failed to reupload preview"));
-    }
-    pending_preview->was_reuploaded_ = true;
-
-    // delete file reference and forcely reupload the file
-    td_->file_manager_->delete_file_reference(file_upload_id.get_file_id(), main_remote_location->get_file_reference());
-    return do_add_bot_media_preview(std::move(pending_preview), {-1});
-  }
-  CHECK(input_file != nullptr);
-  auto r_input_user = get_media_preview_bot_input_user(pending_preview->bot_user_id_, true);
-  if (r_input_user.is_error()) {
-    td_->file_manager_->cancel_upload(file_upload_id);
-    pending_preview->promise_.set_error(r_input_user.move_as_error());
-    return;
-  }
-
-  td_->create_handler<AddPreviewMediaQuery>()->send(r_input_user.move_as_ok(), std::move(pending_preview),
-                                                    std::move(input_file));
-}
-
-void BotInfoManager::on_upload_bot_media_preview_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Bot media preview " << file_upload_id << " has upload error " << status;
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto pending_preview = std::move(it->second);
-  being_uploaded_files_.erase(it);
-  CHECK(file_upload_id == pending_preview->file_upload_id_);
-
-  pending_preview->promise_.set_error(std::move(status));
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> BotInfoManager::get_fake_input_media(FileId file_id) const {
-  FileView file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.empty()) {
-    return nullptr;
-  }
-  auto full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr || full_remote_location->is_web()) {
-    return nullptr;
-  }
-
-  switch (file_view.get_type()) {
-    case FileType::VideoStory:
-      return telegram_api::make_object<telegram_api::inputMediaDocument>(
-          0, false, full_remote_location->as_input_document(), nullptr, 0, 0, string());
-    case FileType::PhotoStory:
-      return telegram_api::make_object<telegram_api::inputMediaPhoto>(0, false, full_remote_location->as_input_photo(),
-                                                                      0);
-    default:
-      return nullptr;
-  }
-}
-
-void BotInfoManager::reorder_bot_media_previews(UserId bot_user_id, const string &language_code,
-                                                const vector<int32> &file_ids, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_media_preview_bot_input_user(bot_user_id, true));
-  TRY_STATUS_PROMISE(promise, validate_bot_media_preview_language_code(language_code));
-  vector<telegram_api::object_ptr<telegram_api::InputMedia>> input_medias;
-  for (auto file_id : file_ids) {
-    auto input_media = get_fake_input_media(FileId(file_id, 0));
-    if (input_media == nullptr) {
-      return promise.set_error(Status::Error(400, "Wrong media to delete specified"));
-    }
-    input_medias.push_back(std::move(input_media));
-  }
-  if (input_medias.empty()) {
-    return promise.set_value(Unit());
-  }
-  td_->create_handler<ReorderPreviewMediasQuery>(std::move(promise))
-      ->send(bot_user_id, std::move(input_user), language_code, std::move(input_medias));
-}
-
-void BotInfoManager::delete_bot_media_previews(UserId bot_user_id, const string &language_code,
-                                               const vector<int32> &file_ids, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_media_preview_bot_input_user(bot_user_id, true));
-  TRY_STATUS_PROMISE(promise, validate_bot_media_preview_language_code(language_code));
-  vector<telegram_api::object_ptr<telegram_api::InputMedia>> input_medias;
-  for (auto file_id : file_ids) {
-    auto input_media = get_fake_input_media(FileId(file_id, 0));
-    if (input_media == nullptr) {
-      return promise.set_error(Status::Error(400, "Wrong media to delete specified"));
-    }
-    input_medias.push_back(std::move(input_media));
-  }
-  td_->create_handler<DeletePreviewMediaQuery>(std::move(promise))
-      ->send(bot_user_id, std::move(input_user), language_code, std::move(input_medias));
-}
-
-void BotInfoManager::add_pending_set_query(UserId bot_user_id, const string &language_code, int type,
-                                           const string &value, Promise<Unit> &&promise) {
-  pending_set_bot_info_queries_.emplace_back(bot_user_id, language_code, type, value, std::move(promise));
-  if (!has_timeout()) {
-    set_timeout_in(MAX_QUERY_DELAY);
-  }
-}
-
-void BotInfoManager::add_pending_get_query(UserId bot_user_id, const string &language_code, int type,
-                                           Promise<string> &&promise) {
-  pending_get_bot_info_queries_.emplace_back(bot_user_id, language_code, type, std::move(promise));
-  if (!has_timeout()) {
-    set_timeout_in(MAX_QUERY_DELAY);
-  }
-}
-
-void BotInfoManager::set_bot_name(UserId bot_user_id, const string &language_code, const string &name,
-                                  Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-  add_pending_set_query(bot_user_id, language_code, 0, name, std::move(promise));
-}
-
-void BotInfoManager::get_bot_name(UserId bot_user_id, const string &language_code, Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-  add_pending_get_query(bot_user_id, language_code, 0, std::move(promise));
-}
-
-void BotInfoManager::set_bot_info_description(UserId bot_user_id, const string &language_code,
-                                              const string &description, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-  add_pending_set_query(bot_user_id, language_code, 1, description, std::move(promise));
-}
-
-void BotInfoManager::get_bot_info_description(UserId bot_user_id, const string &language_code,
-                                              Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-  add_pending_get_query(bot_user_id, language_code, 1, std::move(promise));
-}
-
-void BotInfoManager::set_bot_info_about(UserId bot_user_id, const string &language_code, const string &about,
-                                        Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-  add_pending_set_query(bot_user_id, language_code, 2, about, std::move(promise));
-}
-
-void BotInfoManager::get_bot_info_about(UserId bot_user_id, const string &language_code, Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, validate_bot_language_code(language_code));
-  add_pending_get_query(bot_user_id, language_code, 2, std::move(promise));
-}
-
-void BotInfoManager::set_custom_bot_verification(UserId bot_user_id, DialogId dialog_id, bool is_verified,
-                                                 const string &custom_description, Promise<Unit> &&promise) {
-  telegram_api::object_ptr<telegram_api::InputUser> bot_input_user;
-  if (bot_user_id != UserId()) {
-    TRY_RESULT_PROMISE_ASSIGN(promise, bot_input_user, td_->user_manager_->get_input_user(bot_user_id));
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return promise.set_error(Status::Error(400, "Can't access the verified entity"));
-  }
-  td_->create_handler<SetCustomVerificationQuery>(std::move(promise))
-      ->send(std::move(bot_input_user), dialog_id, is_verified, custom_description);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotInfoManager.h b/third-party/td/td/td/telegram/BotInfoManager.h
deleted file mode 100644
index 7b9a6d6120..0000000000
--- a/third-party/td/td/td/telegram/BotInfoManager.h
+++ /dev/null
@@ -1,207 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-namespace td {
-
-class StoryContent;
-
-class Td;
-
-class BotInfoManager final : public Actor {
- public:
-  BotInfoManager(Td *td, ActorShared<> parent);
-  BotInfoManager(const BotInfoManager &) = delete;
-  BotInfoManager &operator=(const BotInfoManager &) = delete;
-  BotInfoManager(BotInfoManager &&) = delete;
-  BotInfoManager &operator=(BotInfoManager &&) = delete;
-  ~BotInfoManager() final;
-
-  void get_owned_bots(Promise<td_api::object_ptr<td_api::users>> &&promise);
-
-  void set_default_group_administrator_rights(AdministratorRights administrator_rights, Promise<Unit> &&promise);
-
-  void set_default_channel_administrator_rights(AdministratorRights administrator_rights, Promise<Unit> &&promise);
-
-  void can_bot_send_messages(UserId bot_user_id, Promise<Unit> &&promise);
-
-  void allow_bot_to_send_messages(UserId bot_user_id, Promise<Unit> &&promise);
-
-  FileSourceId get_bot_media_preview_file_source_id(UserId bot_user_id);
-
-  FileSourceId get_bot_media_preview_info_file_source_id(UserId bot_user_id, const string &language_code);
-
-  void get_bot_media_previews(UserId bot_user_id, Promise<td_api::object_ptr<td_api::botMediaPreviews>> &&promise);
-
-  void get_bot_media_preview_info(UserId bot_user_id, const string &language_code,
-                                  Promise<td_api::object_ptr<td_api::botMediaPreviewInfo>> &&promise);
-
-  void reload_bot_media_previews(UserId bot_user_id, Promise<Unit> &&promise);
-
-  void reload_bot_media_preview_info(UserId bot_user_id, const string &language_code, Promise<Unit> &&promise);
-
-  void add_bot_media_preview(UserId bot_user_id, const string &language_code,
-                             td_api::object_ptr<td_api::InputStoryContent> &&input_content,
-                             Promise<td_api::object_ptr<td_api::botMediaPreview>> &&promise);
-
-  void edit_bot_media_preview(UserId bot_user_id, const string &language_code, FileId file_id,
-                              td_api::object_ptr<td_api::InputStoryContent> &&input_content,
-                              Promise<td_api::object_ptr<td_api::botMediaPreview>> &&promise);
-
-  void reorder_bot_media_previews(UserId bot_user_id, const string &language_code, const vector<int32> &file_ids,
-                                  Promise<Unit> &&promise);
-
-  void delete_bot_media_previews(UserId bot_user_id, const string &language_code, const vector<int32> &file_ids,
-                                 Promise<Unit> &&promise);
-
-  void set_bot_name(UserId bot_user_id, const string &language_code, const string &name, Promise<Unit> &&promise);
-
-  void get_bot_name(UserId bot_user_id, const string &language_code, Promise<string> &&promise);
-
-  void set_bot_info_description(UserId bot_user_id, const string &language_code, const string &description,
-                                Promise<Unit> &&promise);
-
-  void get_bot_info_description(UserId bot_user_id, const string &language_code, Promise<string> &&promise);
-
-  void set_bot_info_about(UserId bot_user_id, const string &language_code, const string &about,
-                          Promise<Unit> &&promise);
-
-  void get_bot_info_about(UserId bot_user_id, const string &language_code, Promise<string> &&promise);
-
-  void set_custom_bot_verification(UserId bot_user_id, DialogId dialog_id, bool is_verified,
-                                   const string &custom_description, Promise<Unit> &&promise);
-
- private:
-  static constexpr double MAX_QUERY_DELAY = 0.01;
-
-  class UploadMediaCallback;
-
-  class AddPreviewMediaQuery;
-
-  struct PendingBotMediaPreview {
-    FileId edited_file_id_;
-    UserId bot_user_id_;
-    string language_code_;
-    unique_ptr<StoryContent> content_;
-    FileUploadId file_upload_id_;
-    uint32 upload_order_ = 0;
-    bool was_reuploaded_ = false;
-    Promise<td_api::object_ptr<td_api::botMediaPreview>> promise_;
-  };
-
-  struct PendingSetBotInfoQuery {
-    UserId bot_user_id_;
-    string language_code_;
-    int type_ = 0;
-    string value_;
-    Promise<Unit> promise_;
-
-    PendingSetBotInfoQuery(UserId bot_user_id, const string &language_code, int type, const string &value,
-                           Promise<Unit> &&promise)
-        : bot_user_id_(bot_user_id)
-        , language_code_(language_code)
-        , type_(type)
-        , value_(value)
-        , promise_(std::move(promise)) {
-    }
-  };
-
-  struct PendingGetBotInfoQuery {
-    UserId bot_user_id_;
-    string language_code_;
-    int type_ = 0;
-    Promise<string> promise_;
-
-    PendingGetBotInfoQuery(UserId bot_user_id, const string &language_code, int type, Promise<string> &&promise)
-        : bot_user_id_(bot_user_id), language_code_(language_code), type_(type), promise_(std::move(promise)) {
-    }
-  };
-
-  void tear_down() final;
-
-  void hangup() final;
-
-  void timeout_expired() final;
-
-  Result<telegram_api::object_ptr<telegram_api::InputUser>> get_media_preview_bot_input_user(
-      UserId user_id, bool can_be_edited = false);
-
-  static Status validate_bot_media_preview_language_code(const string &language_code);
-
-  void do_add_bot_media_preview(unique_ptr<PendingBotMediaPreview> &&pending_preview, vector<int> bad_parts);
-
-  void on_add_bot_media_preview_file_parts_missing(unique_ptr<PendingBotMediaPreview> &&pending_preview,
-                                                   vector<int> &&bad_parts);
-
-  void on_upload_bot_media_preview(FileUploadId file_upload_id,
-                                   telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_bot_media_preview_error(FileUploadId file_upload_id, Status status);
-
-  telegram_api::object_ptr<telegram_api::InputMedia> get_fake_input_media(FileId file_id) const;
-
-  void add_pending_set_query(UserId bot_user_id, const string &language_code, int type, const string &value,
-                             Promise<Unit> &&promise);
-
-  void add_pending_get_query(UserId bot_user_id, const string &language_code, int type, Promise<string> &&promise);
-
-  vector<PendingSetBotInfoQuery> pending_set_bot_info_queries_;
-
-  vector<PendingGetBotInfoQuery> pending_get_bot_info_queries_;
-
-  FlatHashMap<UserId, FileSourceId, UserIdHash> bot_media_preview_file_source_ids_;
-
-  struct MediaPreviewSource {
-    UserId bot_user_id_;
-    string language_code_;
-
-    MediaPreviewSource() = default;
-    MediaPreviewSource(UserId bot_user_id, string language_code)
-        : bot_user_id_(bot_user_id), language_code_(std::move(language_code)) {
-    }
-
-    friend bool operator==(const MediaPreviewSource &lhs, const MediaPreviewSource &rhs) {
-      return lhs.bot_user_id_ == rhs.bot_user_id_ && lhs.language_code_ == rhs.language_code_;
-    }
-  };
-  struct MediaPreviewSourceHash {
-    uint32 operator()(MediaPreviewSource source) const {
-      return combine_hashes(UserIdHash()(source.bot_user_id_), Hash<string>()(source.language_code_));
-    }
-  };
-  FlatHashMap<MediaPreviewSource, FileSourceId, MediaPreviewSourceHash> bot_media_preview_info_file_source_ids_;
-
-  FlatHashMap<FileUploadId, unique_ptr<PendingBotMediaPreview>, FileUploadIdHash> being_uploaded_files_;
-
-  std::shared_ptr<UploadMediaCallback> upload_media_callback_;
-
-  uint32 bot_media_preview_upload_order_ = 0;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotMenuButton.cpp b/third-party/td/td/td/telegram/BotMenuButton.cpp
deleted file mode 100644
index af77eb2040..0000000000
--- a/third-party/td/td/td/telegram/BotMenuButton.cpp
+++ /dev/null
@@ -1,165 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BotMenuButton.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class SetBotMenuButtonQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetBotMenuButtonQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::BotMenuButton> input_bot_menu_button) {
-    auto input_user = user_id.is_valid() ? td_->user_manager_->get_input_user(user_id).move_as_ok()
-                                         : make_tl_object<telegram_api::inputUserEmpty>();
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_setBotMenuButton(std::move(input_user), std::move(input_bot_menu_button))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_setBotMenuButton>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!result_ptr.ok()) {
-      LOG(ERROR) << "Receive false as result of SetBotMenuButtonQuery";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBotMenuButtonQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::botMenuButton>> promise_;
-
- public:
-  explicit GetBotMenuButtonQuery(Promise<td_api::object_ptr<td_api::botMenuButton>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id) {
-    auto input_user = user_id.is_valid() ? td_->user_manager_->get_input_user(user_id).move_as_ok()
-                                         : make_tl_object<telegram_api::inputUserEmpty>();
-    send_query(G()->net_query_creator().create(telegram_api::bots_getBotMenuButton(std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_getBotMenuButton>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetBotMenuButtonQuery: " << to_string(ptr);
-    auto bot_menu_button = get_bot_menu_button(std::move(ptr));
-    promise_.set_value(bot_menu_button == nullptr ? td_api::make_object<td_api::botMenuButton>()
-                                                  : bot_menu_button->get_bot_menu_button_object(td_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-unique_ptr<BotMenuButton> get_bot_menu_button(telegram_api::object_ptr<telegram_api::BotMenuButton> &&bot_menu_button) {
-  if (bot_menu_button == nullptr) {
-    return nullptr;
-  }
-  switch (bot_menu_button->get_id()) {
-    case telegram_api::botMenuButtonCommands::ID:
-      return nullptr;
-    case telegram_api::botMenuButtonDefault::ID:
-      return td::make_unique<BotMenuButton>(string(), "default");
-    case telegram_api::botMenuButton::ID: {
-      auto button = telegram_api::move_object_as<telegram_api::botMenuButton>(bot_menu_button);
-      if (button->text_.empty()) {
-        LOG(ERROR) << "Receive bot menu button with empty text: " << to_string(button);
-        return nullptr;
-      }
-      return td::make_unique<BotMenuButton>(std::move(button->text_), std::move(button->url_));
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::botMenuButton> BotMenuButton::get_bot_menu_button_object(Td *td) const {
-  bool is_bot = td->auth_manager_->is_bot();
-  return td_api::make_object<td_api::botMenuButton>(text_, is_bot ? url_ : "menu://" + url_);
-}
-
-bool operator==(const BotMenuButton &lhs, const BotMenuButton &rhs) {
-  return lhs.text_ == rhs.text_ && lhs.url_ == rhs.url_;
-}
-
-td_api::object_ptr<td_api::botMenuButton> get_bot_menu_button_object(Td *td, const BotMenuButton *bot_menu_button) {
-  if (bot_menu_button == nullptr) {
-    return nullptr;
-  }
-  return bot_menu_button->get_bot_menu_button_object(td);
-}
-
-void set_menu_button(Td *td, UserId user_id, td_api::object_ptr<td_api::botMenuButton> &&menu_button,
-                     Promise<Unit> &&promise) {
-  if (!user_id.is_valid() && user_id != UserId()) {
-    return promise.set_error(Status::Error(400, "User not found"));
-  }
-
-  telegram_api::object_ptr<telegram_api::BotMenuButton> input_bot_menu_button;
-  if (menu_button == nullptr) {
-    input_bot_menu_button = telegram_api::make_object<telegram_api::botMenuButtonCommands>();
-  } else if (menu_button->text_.empty()) {
-    if (menu_button->url_ != "default") {
-      return promise.set_error(Status::Error(400, "Menu button text must be non-empty"));
-    }
-    input_bot_menu_button = telegram_api::make_object<telegram_api::botMenuButtonDefault>();
-  } else {
-    if (!clean_input_string(menu_button->text_)) {
-      return promise.set_error(Status::Error(400, "Menu button text must be encoded in UTF-8"));
-    }
-    if (!clean_input_string(menu_button->url_)) {
-      return promise.set_error(Status::Error(400, "Menu button URL must be encoded in UTF-8"));
-    }
-    auto r_url = LinkManager::check_link(menu_button->url_, true, !G()->is_test_dc());
-    if (r_url.is_error()) {
-      return promise.set_error(Status::Error(400, PSLICE() << "Menu button Web App " << r_url.error().message()));
-    }
-    input_bot_menu_button = telegram_api::make_object<telegram_api::botMenuButton>(menu_button->text_, r_url.ok());
-  }
-
-  td->create_handler<SetBotMenuButtonQuery>(std::move(promise))->send(user_id, std::move(input_bot_menu_button));
-}
-
-void get_menu_button(Td *td, UserId user_id, Promise<td_api::object_ptr<td_api::botMenuButton>> &&promise) {
-  if (!user_id.is_valid() && user_id != UserId()) {
-    return promise.set_error(Status::Error(400, "User not found"));
-  }
-
-  td->create_handler<GetBotMenuButtonQuery>(std::move(promise))->send(user_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotMenuButton.h b/third-party/td/td/td/telegram/BotMenuButton.h
deleted file mode 100644
index 2052072bf7..0000000000
--- a/third-party/td/td/td/telegram/BotMenuButton.h
+++ /dev/null
@@ -1,83 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Td;
-
-class BotMenuButton {
-  string text_;
-  string url_;
-
-  friend bool operator==(const BotMenuButton &lhs, const BotMenuButton &rhs);
-
- public:
-  BotMenuButton() = default;
-
-  BotMenuButton(string &&text, string &&url) : text_(std::move(text)), url_(std::move(url)) {
-  }
-
-  td_api::object_ptr<td_api::botMenuButton> get_bot_menu_button_object(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_text = !text_.empty();
-    bool has_url = !url_.empty();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_text);
-    STORE_FLAG(has_url);
-    END_STORE_FLAGS();
-    if (has_text) {
-      td::store(text_, storer);
-    }
-    if (has_url) {
-      td::store(url_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_text;
-    bool has_url;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_text);
-    PARSE_FLAG(has_url);
-    END_PARSE_FLAGS();
-    if (has_text) {
-      td::parse(text_, parser);
-    }
-    if (has_url) {
-      td::parse(url_, parser);
-    }
-  }
-};
-
-bool operator==(const BotMenuButton &lhs, const BotMenuButton &rhs);
-
-inline bool operator!=(const BotMenuButton &lhs, const BotMenuButton &rhs) {
-  return !(lhs == rhs);
-}
-
-unique_ptr<BotMenuButton> get_bot_menu_button(telegram_api::object_ptr<telegram_api::BotMenuButton> &&bot_menu_button);
-
-td_api::object_ptr<td_api::botMenuButton> get_bot_menu_button_object(Td *td, const BotMenuButton *bot_menu_button);
-
-void set_menu_button(Td *td, UserId user_id, td_api::object_ptr<td_api::botMenuButton> &&menu_button,
-                     Promise<Unit> &&promise);
-
-void get_menu_button(Td *td, UserId user_id, Promise<td_api::object_ptr<td_api::botMenuButton>> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotQueries.cpp b/third-party/td/td/td/telegram/BotQueries.cpp
deleted file mode 100644
index b4047e95ad..0000000000
--- a/third-party/td/td/td/telegram/BotQueries.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BotQueries.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class SendCustomRequestQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::customRequestResult>> promise_;
-
- public:
-  explicit SendCustomRequestQuery(Promise<td_api::object_ptr<td_api::customRequestResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &method, const string &parameters) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_sendCustomRequest(method, telegram_api::make_object<telegram_api::dataJSON>(parameters))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_sendCustomRequest>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    promise_.set_value(td_api::make_object<td_api::customRequestResult>(result->data_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AnswerCustomQueryQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit AnswerCustomQueryQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 custom_query_id, const string &data) {
-    send_query(G()->net_query_creator().create(telegram_api::bots_answerWebhookJSONQuery(
-        custom_query_id, telegram_api::make_object<telegram_api::dataJSON>(data))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_answerWebhookJSONQuery>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      LOG(INFO) << "Sending answer to a custom query has failed";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetBotUpdatesStatusQuery final : public Td::ResultHandler {
- public:
-  void send(int32 pending_update_count, const string &error_message) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::help_setBotUpdatesStatus(pending_update_count, error_message)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_setBotUpdatesStatus>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG_IF(WARNING, !result) << "Set bot updates status has failed";
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(WARNING) << "Receive error for SetBotUpdatesStatusQuery: " << status;
-    }
-    status.ignore();
-  }
-};
-
-void send_bot_custom_query(Td *td, const string &method, const string &parameters,
-                           Promise<td_api::object_ptr<td_api::customRequestResult>> &&promise) {
-  td->create_handler<SendCustomRequestQuery>(std::move(promise))->send(method, parameters);
-}
-
-void answer_bot_custom_query(Td *td, int64 custom_query_id, const string &data, Promise<Unit> &&promise) {
-  td->create_handler<AnswerCustomQueryQuery>(std::move(promise))->send(custom_query_id, data);
-}
-
-void set_bot_updates_status(Td *td, int32 pending_update_count, const string &error_message, Promise<Unit> &&promise) {
-  td->create_handler<SetBotUpdatesStatusQuery>()->send(pending_update_count, error_message);
-  promise.set_value(Unit());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotQueries.h b/third-party/td/td/td/telegram/BotQueries.h
deleted file mode 100644
index e5224f0ade..0000000000
--- a/third-party/td/td/td/telegram/BotQueries.h
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-void send_bot_custom_query(Td *td, const string &method, const string &parameters,
-                           Promise<td_api::object_ptr<td_api::customRequestResult>> &&promise);
-
-void answer_bot_custom_query(Td *td, int64 custom_query_id, const string &data, Promise<Unit> &&promise);
-
-void set_bot_updates_status(Td *td, int32 pending_update_count, const string &error_message, Promise<Unit> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotRecommendationManager.cpp b/third-party/td/td/td/telegram/BotRecommendationManager.cpp
deleted file mode 100644
index 5dffd61a6b..0000000000
--- a/third-party/td/td/td/telegram/BotRecommendationManager.cpp
+++ /dev/null
@@ -1,366 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BotRecommendationManager.h"
-
-#include "td/telegram/Application.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class GetBotRecommendationsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::users_Users>> promise_;
-  UserId bot_user_id_;
-
- public:
-  explicit GetBotRecommendationsQuery(Promise<telegram_api::object_ptr<telegram_api::users_Users>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id) {
-    bot_user_id_ = bot_user_id;
-
-    auto r_bot_input_user = td_->user_manager_->get_input_user(bot_user_id);
-    if (r_bot_input_user.is_error()) {
-      return on_error(r_bot_input_user.move_as_error());
-    }
-    send_query(
-        G()->net_query_creator().create(telegram_api::bots_getBotRecommendations(r_bot_input_user.move_as_ok())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_getBotRecommendations>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetBotRecommendationsQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-template <class StorerT>
-void BotRecommendationManager::RecommendedBots::store(StorerT &storer) const {
-  bool has_bot_user_ids = !bot_user_ids_.empty();
-  bool has_total_count = static_cast<size_t>(total_count_) != bot_user_ids_.size();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_bot_user_ids);
-  STORE_FLAG(has_total_count);
-  END_STORE_FLAGS();
-  if (has_bot_user_ids) {
-    td::store(bot_user_ids_, storer);
-  }
-  store_time(next_reload_time_, storer);
-  if (has_total_count) {
-    td::store(total_count_, storer);
-  }
-}
-
-template <class ParserT>
-void BotRecommendationManager::RecommendedBots::parse(ParserT &parser) {
-  bool has_bot_user_ids;
-  bool has_total_count;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_bot_user_ids);
-  PARSE_FLAG(has_total_count);
-  END_PARSE_FLAGS();
-  if (has_bot_user_ids) {
-    td::parse(bot_user_ids_, parser);
-  }
-  parse_time(next_reload_time_, parser);
-  if (has_total_count) {
-    td::parse(total_count_, parser);
-  } else {
-    total_count_ = static_cast<int32>(bot_user_ids_.size());
-  }
-}
-
-BotRecommendationManager::BotRecommendationManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void BotRecommendationManager::tear_down() {
-  parent_.reset();
-}
-
-bool BotRecommendationManager::is_suitable_recommended_bot(UserId bot_user_id) const {
-  return td_->user_manager_->is_user_bot(bot_user_id);
-}
-
-bool BotRecommendationManager::are_suitable_recommended_bots(const RecommendedBots &recommended_bots) const {
-  for (auto recommended_bot_user_id : recommended_bots.bot_user_ids_) {
-    if (!is_suitable_recommended_bot(recommended_bot_user_id)) {
-      return false;
-    }
-  }
-  auto is_premium = td_->option_manager_->get_option_boolean("is_premium");
-  auto have_all = recommended_bots.bot_user_ids_.size() == static_cast<size_t>(recommended_bots.total_count_);
-  if (!have_all && is_premium) {
-    return false;
-  }
-  return true;
-}
-
-void BotRecommendationManager::get_bot_recommendations(UserId bot_user_id, bool return_local,
-                                                       Promise<td_api::object_ptr<td_api::users>> &&users_promise,
-                                                       Promise<td_api::object_ptr<td_api::count>> &&count_promise) {
-  auto r_bot_input_user = td_->user_manager_->get_input_user(bot_user_id);
-  if (r_bot_input_user.is_error()) {
-    if (users_promise) {
-      users_promise.set_error(r_bot_input_user.error().clone());
-    }
-    if (count_promise) {
-      count_promise.set_error(r_bot_input_user.error().clone());
-    }
-    return;
-  }
-  if (!td_->user_manager_->is_user_bot(bot_user_id)) {
-    if (users_promise) {
-      users_promise.set_error(Status::Error(400, "Bot not found"));
-    }
-    if (count_promise) {
-      count_promise.set_error(Status::Error(400, "Bot not found"));
-    }
-    return;
-  }
-  bool use_database = true;
-  auto it = bot_recommended_bots_.find(bot_user_id);
-  if (it != bot_recommended_bots_.end()) {
-    if (are_suitable_recommended_bots(it->second)) {
-      auto next_reload_time = it->second.next_reload_time_;
-      if (users_promise) {
-        users_promise.set_value(
-            td_->user_manager_->get_users_object(it->second.total_count_, it->second.bot_user_ids_));
-      }
-      if (count_promise) {
-        count_promise.set_value(td_api::make_object<td_api::count>(it->second.total_count_));
-      }
-      if (next_reload_time > Time::now()) {
-        return;
-      }
-      users_promise = {};
-      count_promise = {};
-    } else {
-      LOG(INFO) << "Drop cache for similar bots of " << bot_user_id;
-      bot_recommended_bots_.erase(it);
-      if (G()->use_message_database()) {
-        G()->td_db()->get_sqlite_pmc()->erase(get_bot_recommendations_database_key(bot_user_id), Auto());
-      }
-    }
-    use_database = false;
-  }
-  load_bot_recommendations(bot_user_id, use_database, return_local, std::move(users_promise), std::move(count_promise));
-}
-
-string BotRecommendationManager::get_bot_recommendations_database_key(UserId bot_user_id) {
-  return PSTRING() << "bot_recommendations" << bot_user_id.get();
-}
-
-void BotRecommendationManager::load_bot_recommendations(UserId bot_user_id, bool use_database, bool return_local,
-                                                        Promise<td_api::object_ptr<td_api::users>> &&users_promise,
-                                                        Promise<td_api::object_ptr<td_api::count>> &&count_promise) {
-  if (count_promise) {
-    get_bot_recommendation_count_queries_[return_local][bot_user_id].push_back(std::move(count_promise));
-  }
-  auto &queries = get_bot_recommendations_queries_[bot_user_id];
-  queries.push_back(std::move(users_promise));
-  if (queries.size() == 1) {
-    if (G()->use_message_database() && use_database) {
-      G()->td_db()->get_sqlite_pmc()->get(
-          get_bot_recommendations_database_key(bot_user_id),
-          PromiseCreator::lambda([actor_id = actor_id(this), bot_user_id](string value) {
-            send_closure(actor_id, &BotRecommendationManager::on_load_bot_recommendations_from_database, bot_user_id,
-                         std::move(value));
-          }));
-    } else {
-      reload_bot_recommendations(bot_user_id);
-    }
-  }
-}
-
-void BotRecommendationManager::fail_load_bot_recommendations_queries(UserId bot_user_id, Status &&error) {
-  for (int return_local = 0; return_local < 2; return_local++) {
-    auto it = get_bot_recommendation_count_queries_[return_local].find(bot_user_id);
-    if (it != get_bot_recommendation_count_queries_[return_local].end()) {
-      auto promises = std::move(it->second);
-      CHECK(!promises.empty());
-      get_bot_recommendation_count_queries_[return_local].erase(it);
-      fail_promises(promises, error.clone());
-    }
-  }
-  auto it = get_bot_recommendations_queries_.find(bot_user_id);
-  CHECK(it != get_bot_recommendations_queries_.end());
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  get_bot_recommendations_queries_.erase(it);
-  fail_promises(promises, std::move(error));
-}
-
-void BotRecommendationManager::finish_load_bot_recommendations_queries(UserId bot_user_id, int32 total_count,
-                                                                       vector<UserId> bot_user_ids) {
-  for (int return_local = 0; return_local < 2; return_local++) {
-    auto it = get_bot_recommendation_count_queries_[return_local].find(bot_user_id);
-    if (it != get_bot_recommendation_count_queries_[return_local].end()) {
-      auto promises = std::move(it->second);
-      CHECK(!promises.empty());
-      get_bot_recommendation_count_queries_[return_local].erase(it);
-      for (auto &promise : promises) {
-        promise.set_value(td_api::make_object<td_api::count>(total_count));
-      }
-    }
-  }
-  auto it = get_bot_recommendations_queries_.find(bot_user_id);
-  CHECK(it != get_bot_recommendations_queries_.end());
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  get_bot_recommendations_queries_.erase(it);
-  for (auto &promise : promises) {
-    if (promise) {
-      promise.set_value(td_->user_manager_->get_users_object(total_count, bot_user_ids));
-    }
-  }
-}
-
-void BotRecommendationManager::on_load_bot_recommendations_from_database(UserId bot_user_id, string value) {
-  if (G()->close_flag()) {
-    return fail_load_bot_recommendations_queries(bot_user_id, G()->close_status());
-  }
-
-  if (value.empty()) {
-    return reload_bot_recommendations(bot_user_id);
-  }
-  auto &recommended_bots = bot_recommended_bots_[bot_user_id];
-  if (log_event_parse(recommended_bots, value).is_error()) {
-    bot_recommended_bots_.erase(bot_user_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_bot_recommendations_database_key(bot_user_id), Auto());
-    return reload_bot_recommendations(bot_user_id);
-  }
-  Dependencies dependencies;
-  for (auto user_id : recommended_bots.bot_user_ids_) {
-    dependencies.add(user_id);
-  }
-  if (!dependencies.resolve_force(td_, "on_load_bot_recommendations_from_database") ||
-      !are_suitable_recommended_bots(recommended_bots)) {
-    bot_recommended_bots_.erase(bot_user_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_bot_recommendations_database_key(bot_user_id), Auto());
-    return reload_bot_recommendations(bot_user_id);
-  }
-
-  auto next_reload_time = recommended_bots.next_reload_time_;
-  finish_load_bot_recommendations_queries(bot_user_id, recommended_bots.total_count_, recommended_bots.bot_user_ids_);
-
-  if (next_reload_time <= Time::now()) {
-    load_bot_recommendations(bot_user_id, false, false, Auto(), Auto());
-  }
-}
-
-void BotRecommendationManager::reload_bot_recommendations(UserId bot_user_id) {
-  auto it = get_bot_recommendation_count_queries_[1].find(bot_user_id);
-  if (it != get_bot_recommendation_count_queries_[1].end()) {
-    auto promises = std::move(it->second);
-    CHECK(!promises.empty());
-    get_bot_recommendation_count_queries_[1].erase(it);
-    for (auto &promise : promises) {
-      promise.set_value(td_api::make_object<td_api::count>(-1));
-    }
-  }
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), bot_user_id](Result<telegram_api::object_ptr<telegram_api::users_Users>> &&result) {
-        send_closure(actor_id, &BotRecommendationManager::on_get_bot_recommendations, bot_user_id, std::move(result));
-      });
-  td_->create_handler<GetBotRecommendationsQuery>(std::move(query_promise))->send(bot_user_id);
-}
-
-void BotRecommendationManager::on_get_bot_recommendations(
-    UserId bot_user_id, Result<telegram_api::object_ptr<telegram_api::users_Users>> &&r_users) {
-  G()->ignore_result_if_closing(r_users);
-
-  if (r_users.is_error()) {
-    return fail_load_bot_recommendations_queries(bot_user_id, r_users.move_as_error());
-  }
-  auto users_ptr = r_users.move_as_ok();
-
-  int32 total_count = 0;
-  vector<telegram_api::object_ptr<telegram_api::User>> users;
-  switch (users_ptr->get_id()) {
-    case telegram_api::users_users::ID: {
-      auto users_obj = telegram_api::move_object_as<telegram_api::users_users>(users_ptr);
-      users = std::move(users_obj->users_);
-      total_count = static_cast<int32>(users.size());
-      break;
-    }
-    case telegram_api::users_usersSlice::ID: {
-      auto users_obj = telegram_api::move_object_as<telegram_api::users_usersSlice>(users_ptr);
-      users = std::move(users_obj->users_);
-      total_count = users_obj->count_;
-      if (total_count < static_cast<int32>(users.size())) {
-        LOG(ERROR) << "Receive total_count = " << total_count << " and " << users.size() << " similar bots for "
-                   << bot_user_id;
-        total_count = static_cast<int32>(users.size());
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  auto recommended_bot_user_ids = td_->user_manager_->get_user_ids(std::move(users), "on_get_bot_recommendations");
-  vector<UserId> bot_user_ids;
-  for (auto recommended_bot_user_id : recommended_bot_user_ids) {
-    if (is_suitable_recommended_bot(recommended_bot_user_id)) {
-      bot_user_ids.push_back(recommended_bot_user_id);
-    } else {
-      total_count--;
-    }
-  }
-  auto &recommended_bots = bot_recommended_bots_[bot_user_id];
-  recommended_bots.total_count_ = total_count;
-  recommended_bots.bot_user_ids_ = bot_user_ids;
-  recommended_bots.next_reload_time_ = Time::now() + BOT_RECOMMENDATIONS_CACHE_TIME;
-
-  if (G()->use_message_database()) {
-    G()->td_db()->get_sqlite_pmc()->set(get_bot_recommendations_database_key(bot_user_id),
-                                        log_event_store(recommended_bots).as_slice().str(), Promise<Unit>());
-  }
-
-  finish_load_bot_recommendations_queries(bot_user_id, total_count, std::move(bot_user_ids));
-}
-
-void BotRecommendationManager::open_bot_recommended_bot(UserId bot_user_id, UserId opened_bot_user_id,
-                                                        Promise<Unit> &&promise) {
-  if (!td_->user_manager_->is_user_bot(bot_user_id) || !td_->user_manager_->is_user_bot(opened_bot_user_id)) {
-    return promise.set_error(Status::Error(400, "Bot not found"));
-  }
-  vector<telegram_api::object_ptr<telegram_api::jsonObjectValue>> data;
-  data.push_back(telegram_api::make_object<telegram_api::jsonObjectValue>(
-      "ref_bot_id", telegram_api::make_object<telegram_api::jsonString>(to_string(bot_user_id.get()))));
-  data.push_back(telegram_api::make_object<telegram_api::jsonObjectValue>(
-      "open_bot_id", telegram_api::make_object<telegram_api::jsonString>(to_string(opened_bot_user_id.get()))));
-  save_app_log(td_, "bots.open_recommended_bot", DialogId(),
-               telegram_api::make_object<telegram_api::jsonObject>(std::move(data)), std::move(promise));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotRecommendationManager.h b/third-party/td/td/td/telegram/BotRecommendationManager.h
deleted file mode 100644
index 814349c8d7..0000000000
--- a/third-party/td/td/td/telegram/BotRecommendationManager.h
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class BotRecommendationManager final : public Actor {
- public:
-  BotRecommendationManager(Td *td, ActorShared<> parent);
-
-  void get_bot_recommendations(UserId bot_user_id, bool return_local,
-                               Promise<td_api::object_ptr<td_api::users>> &&users_promise,
-                               Promise<td_api::object_ptr<td_api::count>> &&count_promise);
-
-  void open_bot_recommended_bot(UserId bot_user_id, UserId opened_bot_user_id, Promise<Unit> &&promise);
-
- private:
-  static constexpr int32 BOT_RECOMMENDATIONS_CACHE_TIME = 86400;  // some reasonable limit
-
-  struct RecommendedBots {
-    int32 total_count_ = 0;
-    vector<UserId> bot_user_ids_;
-    double next_reload_time_ = 0.0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  void tear_down() final;
-
-  bool is_suitable_recommended_bot(UserId bot_user_id) const;
-
-  bool are_suitable_recommended_bots(const RecommendedBots &recommended_bots) const;
-
-  string get_bot_recommendations_database_key(UserId bot_user_id);
-
-  void load_bot_recommendations(UserId bot_user_id, bool use_database, bool return_local,
-                                Promise<td_api::object_ptr<td_api::users>> &&users_promise,
-                                Promise<td_api::object_ptr<td_api::count>> &&count_promise);
-
-  void fail_load_bot_recommendations_queries(UserId bot_user_id, Status &&error);
-
-  void finish_load_bot_recommendations_queries(UserId bot_user_id, int32 total_count, vector<UserId> bot_user_ids);
-
-  void on_load_bot_recommendations_from_database(UserId bot_user_id, string value);
-
-  void reload_bot_recommendations(UserId bot_user_id);
-
-  void on_get_bot_recommendations(UserId bot_user_id,
-                                  Result<telegram_api::object_ptr<telegram_api::users_Users>> &&r_users);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  FlatHashMap<UserId, RecommendedBots, UserIdHash> bot_recommended_bots_;
-  FlatHashMap<UserId, vector<Promise<td_api::object_ptr<td_api::users>>>, UserIdHash> get_bot_recommendations_queries_;
-  FlatHashMap<UserId, vector<Promise<td_api::object_ptr<td_api::count>>>, UserIdHash>
-      get_bot_recommendation_count_queries_[2];
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotVerification.cpp b/third-party/td/td/td/telegram/BotVerification.cpp
deleted file mode 100644
index 4c027ac5ba..0000000000
--- a/third-party/td/td/td/telegram/BotVerification.cpp
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BotVerification.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-BotVerification::BotVerification(telegram_api::object_ptr<telegram_api::botVerification> &&bot_verification) {
-  if (bot_verification == nullptr) {
-    return;
-  }
-  bot_user_id_ = UserId(bot_verification->bot_id_);
-  icon_ = CustomEmojiId(bot_verification->icon_);
-  description_ = std::move(bot_verification->description_);
-}
-
-unique_ptr<BotVerification> BotVerification::get_bot_verification(
-    telegram_api::object_ptr<telegram_api::botVerification> &&bot_verification) {
-  if (bot_verification == nullptr) {
-    return nullptr;
-  }
-  auto result = td::make_unique<BotVerification>(std::move(bot_verification));
-  if (!result->is_valid()) {
-    LOG(ERROR) << "Receive invalid " << *result;
-    return nullptr;
-  }
-  return result;
-}
-
-td_api::object_ptr<td_api::botVerification> BotVerification::get_bot_verification_object(Td *td) const {
-  if (!is_valid()) {
-    return nullptr;
-  }
-  FormattedText text;
-  text.text = description_;
-  text.entities = find_entities(text.text, true, true);
-  return td_api::make_object<td_api::botVerification>(
-      td->user_manager_->get_user_id_object(bot_user_id_, "botVerification"), icon_.get(),
-      get_formatted_text_object(td->user_manager_.get(), text, true, -1));
-}
-
-void BotVerification::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add(bot_user_id_);
-}
-
-bool operator==(const BotVerification &lhs, const BotVerification &rhs) {
-  return lhs.bot_user_id_ == rhs.bot_user_id_ && lhs.icon_ == rhs.icon_ && lhs.description_ == rhs.description_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BotVerification &bot_verification) {
-  return string_builder << "verified by " << bot_verification.bot_user_id_ << " with " << bot_verification.icon_
-                        << " and " << bot_verification.description_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotVerification.h b/third-party/td/td/td/telegram/BotVerification.h
deleted file mode 100644
index 3ea5bc4b6e..0000000000
--- a/third-party/td/td/td/telegram/BotVerification.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class BotVerification {
- public:
-  BotVerification() = default;
-
-  explicit BotVerification(telegram_api::object_ptr<telegram_api::botVerification> &&bot_verification);
-
-  static unique_ptr<BotVerification> get_bot_verification(
-      telegram_api::object_ptr<telegram_api::botVerification> &&bot_verification);
-
-  td_api::object_ptr<td_api::botVerification> get_bot_verification_object(Td *td) const;
-
-  bool is_valid() const {
-    return bot_user_id_.is_valid() && icon_.is_valid();
-  }
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  UserId bot_user_id_;
-  CustomEmojiId icon_;
-  string description_;
-
-  friend bool operator==(const BotVerification &lhs, const BotVerification &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BotVerification &bot_verification);
-};
-
-bool operator==(const BotVerification &lhs, const BotVerification &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BotVerification &bot_verification);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotVerification.hpp b/third-party/td/td/td/telegram/BotVerification.hpp
deleted file mode 100644
index c96e93b4b4..0000000000
--- a/third-party/td/td/td/telegram/BotVerification.hpp
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BotVerification.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BotVerification::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(bot_user_id_, storer);
-  td::store(icon_, storer);
-  td::store(description_, storer);
-}
-
-template <class ParserT>
-void BotVerification::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(bot_user_id_, parser);
-  td::parse(icon_, parser);
-  td::parse(description_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotVerifierSettings.cpp b/third-party/td/td/td/telegram/BotVerifierSettings.cpp
deleted file mode 100644
index e122a2f00d..0000000000
--- a/third-party/td/td/td/telegram/BotVerifierSettings.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BotVerifierSettings.h"
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-BotVerifierSettings::BotVerifierSettings(
-    telegram_api::object_ptr<telegram_api::botVerifierSettings> &&bot_verifier_settings) {
-  if (bot_verifier_settings == nullptr) {
-    return;
-  }
-  icon_ = CustomEmojiId(bot_verifier_settings->icon_);
-  company_ = std::move(bot_verifier_settings->company_);
-  description_ = std::move(bot_verifier_settings->custom_description_);
-  can_modify_custom_description_ = bot_verifier_settings->can_modify_custom_description_;
-}
-
-unique_ptr<BotVerifierSettings> BotVerifierSettings::get_bot_verifier_settings(
-    telegram_api::object_ptr<telegram_api::botVerifierSettings> &&bot_verifier_settings) {
-  if (bot_verifier_settings == nullptr) {
-    return nullptr;
-  }
-  auto result = td::make_unique<BotVerifierSettings>(std::move(bot_verifier_settings));
-  if (!result->is_valid()) {
-    LOG(ERROR) << "Receive invalid " << *result;
-    return nullptr;
-  }
-  return result;
-}
-
-td_api::object_ptr<td_api::botVerificationParameters> BotVerifierSettings::get_bot_verification_parameters_object(
-    Td *td) const {
-  if (!is_valid()) {
-    return nullptr;
-  }
-  td_api::object_ptr<td_api::formattedText> description;
-  if (!description_.empty() || can_modify_custom_description_) {
-    FormattedText text;
-    text.text = description_;
-    text.entities = find_entities(text.text, true, true);
-    description = get_formatted_text_object(td->user_manager_.get(), text, true, -1);
-  }
-  return td_api::make_object<td_api::botVerificationParameters>(icon_.get(), company_, std::move(description),
-                                                                can_modify_custom_description_);
-}
-
-bool operator==(const BotVerifierSettings &lhs, const BotVerifierSettings &rhs) {
-  return lhs.icon_ == rhs.icon_ && lhs.company_ == rhs.company_ && lhs.description_ == rhs.description_ &&
-         lhs.can_modify_custom_description_ == rhs.can_modify_custom_description_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BotVerifierSettings &bot_verifier_settings) {
-  return string_builder << "VerificationSettings[" << bot_verifier_settings.icon_ << " by "
-                        << bot_verifier_settings.company_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotVerifierSettings.h b/third-party/td/td/td/telegram/BotVerifierSettings.h
deleted file mode 100644
index 8d6be0e3fd..0000000000
--- a/third-party/td/td/td/telegram/BotVerifierSettings.h
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class BotVerifierSettings {
- public:
-  BotVerifierSettings() = default;
-
-  explicit BotVerifierSettings(telegram_api::object_ptr<telegram_api::botVerifierSettings> &&bot_verifier_settings);
-
-  static unique_ptr<BotVerifierSettings> get_bot_verifier_settings(
-      telegram_api::object_ptr<telegram_api::botVerifierSettings> &&bot_verifier_settings);
-
-  td_api::object_ptr<td_api::botVerificationParameters> get_bot_verification_parameters_object(Td *td) const;
-
-  bool is_valid() const {
-    return icon_.is_valid();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  CustomEmojiId icon_;
-  string company_;
-  string description_;
-  bool can_modify_custom_description_ = false;
-
-  friend bool operator==(const BotVerifierSettings &lhs, const BotVerifierSettings &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BotVerifierSettings &bot_verifier_settings);
-};
-
-bool operator==(const BotVerifierSettings &lhs, const BotVerifierSettings &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BotVerifierSettings &bot_verifier_settings);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BotVerifierSettings.hpp b/third-party/td/td/td/telegram/BotVerifierSettings.hpp
deleted file mode 100644
index 719e9ce61f..0000000000
--- a/third-party/td/td/td/telegram/BotVerifierSettings.hpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BotVerifierSettings.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BotVerifierSettings::store(StorerT &storer) const {
-  bool has_description = !description_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_description);
-  STORE_FLAG(can_modify_custom_description_);
-  END_STORE_FLAGS();
-  td::store(icon_, storer);
-  td::store(company_, storer);
-  if (has_description) {
-    td::store(description_, storer);
-  }
-}
-
-template <class ParserT>
-void BotVerifierSettings::parse(ParserT &parser) {
-  bool has_description;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_description);
-  PARSE_FLAG(can_modify_custom_description_);
-  END_PARSE_FLAGS();
-  td::parse(icon_, parser);
-  td::parse(company_, parser);
-  if (has_description) {
-    td::parse(description_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessAwayMessage.cpp b/third-party/td/td/td/telegram/BusinessAwayMessage.cpp
deleted file mode 100644
index 6345680b3a..0000000000
--- a/third-party/td/td/td/telegram/BusinessAwayMessage.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessAwayMessage.h"
-
-#include "td/telegram/Dependencies.h"
-
-namespace td {
-
-BusinessAwayMessage::BusinessAwayMessage(telegram_api::object_ptr<telegram_api::businessAwayMessage> away_message) {
-  if (away_message == nullptr) {
-    return;
-  }
-  shortcut_id_ = QuickReplyShortcutId(away_message->shortcut_id_);
-  recipients_ = BusinessRecipients(std::move(away_message->recipients_));
-  schedule_ = BusinessAwayMessageSchedule(std::move(away_message->schedule_));
-  offline_only_ = away_message->offline_only_;
-}
-
-BusinessAwayMessage::BusinessAwayMessage(td_api::object_ptr<td_api::businessAwayMessageSettings> away_message) {
-  if (away_message == nullptr) {
-    return;
-  }
-  shortcut_id_ = QuickReplyShortcutId(away_message->shortcut_id_);
-  recipients_ = BusinessRecipients(std::move(away_message->recipients_), false);
-  schedule_ = BusinessAwayMessageSchedule(std::move(away_message->schedule_));
-  offline_only_ = away_message->offline_only_;
-}
-
-td_api::object_ptr<td_api::businessAwayMessageSettings> BusinessAwayMessage::get_business_away_message_settings_object(
-    Td *td) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::businessAwayMessageSettings>(
-      shortcut_id_.get(), recipients_.get_business_recipients_object(td),
-      schedule_.get_business_away_message_schedule_object(), offline_only_);
-}
-
-telegram_api::object_ptr<telegram_api::inputBusinessAwayMessage> BusinessAwayMessage::get_input_business_away_message(
-    Td *td) const {
-  return telegram_api::make_object<telegram_api::inputBusinessAwayMessage>(
-      0, offline_only_, shortcut_id_.get(), schedule_.get_input_business_away_message_schedule(),
-      recipients_.get_input_business_recipients(td));
-}
-
-void BusinessAwayMessage::add_dependencies(Dependencies &dependencies) const {
-  recipients_.add_dependencies(dependencies);
-}
-
-bool operator==(const BusinessAwayMessage &lhs, const BusinessAwayMessage &rhs) {
-  return lhs.shortcut_id_ == rhs.shortcut_id_ && lhs.recipients_ == rhs.recipients_ && lhs.schedule_ == rhs.schedule_ &&
-         lhs.offline_only_ == rhs.offline_only_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessAwayMessage &away_message) {
-  return string_builder << "away message " << away_message.shortcut_id_ << ' ' << away_message.recipients_ << ' '
-                        << away_message.schedule_ << (away_message.offline_only_ ? " only offline" : "");
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessAwayMessage.h b/third-party/td/td/td/telegram/BusinessAwayMessage.h
deleted file mode 100644
index a40a67aeeb..0000000000
--- a/third-party/td/td/td/telegram/BusinessAwayMessage.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessAwayMessageSchedule.h"
-#include "td/telegram/BusinessRecipients.h"
-#include "td/telegram/QuickReplyShortcutId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class BusinessAwayMessage {
- public:
-  BusinessAwayMessage() = default;
-
-  explicit BusinessAwayMessage(telegram_api::object_ptr<telegram_api::businessAwayMessage> away_message);
-
-  explicit BusinessAwayMessage(td_api::object_ptr<td_api::businessAwayMessageSettings> away_message);
-
-  td_api::object_ptr<td_api::businessAwayMessageSettings> get_business_away_message_settings_object(Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::inputBusinessAwayMessage> get_input_business_away_message(Td *td) const;
-
-  bool is_empty() const {
-    return !is_valid();
-  }
-
-  bool is_valid() const {
-    return shortcut_id_.is_server();
-  }
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  QuickReplyShortcutId shortcut_id_;
-  BusinessRecipients recipients_;
-  BusinessAwayMessageSchedule schedule_;
-  bool offline_only_ = false;
-
-  friend bool operator==(const BusinessAwayMessage &lhs, const BusinessAwayMessage &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessAwayMessage &away_message);
-};
-
-bool operator==(const BusinessAwayMessage &lhs, const BusinessAwayMessage &rhs);
-
-inline bool operator!=(const BusinessAwayMessage &lhs, const BusinessAwayMessage &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessAwayMessage &away_message);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessAwayMessage.hpp b/third-party/td/td/td/telegram/BusinessAwayMessage.hpp
deleted file mode 100644
index 22aa939f2d..0000000000
--- a/third-party/td/td/td/telegram/BusinessAwayMessage.hpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessAwayMessage.h"
-#include "td/telegram/BusinessAwayMessageSchedule.hpp"
-#include "td/telegram/BusinessRecipients.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessAwayMessage::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(offline_only_);
-  END_STORE_FLAGS();
-  td::store(shortcut_id_, storer);
-  td::store(recipients_, storer);
-  td::store(schedule_, storer);
-}
-
-template <class ParserT>
-void BusinessAwayMessage::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(offline_only_);
-  END_PARSE_FLAGS();
-  td::parse(shortcut_id_, parser);
-  td::parse(recipients_, parser);
-  td::parse(schedule_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.cpp b/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.cpp
deleted file mode 100644
index b1394a1086..0000000000
--- a/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessAwayMessageSchedule.h"
-
-namespace td {
-
-BusinessAwayMessageSchedule::BusinessAwayMessageSchedule(
-    telegram_api::object_ptr<telegram_api::BusinessAwayMessageSchedule> schedule) {
-  CHECK(schedule != nullptr);
-  switch (schedule->get_id()) {
-    case telegram_api::businessAwayMessageScheduleAlways::ID:
-      type_ = Type::Always;
-      break;
-    case telegram_api::businessAwayMessageScheduleOutsideWorkHours::ID:
-      type_ = Type::OutsideOfWorkHours;
-      break;
-    case telegram_api::businessAwayMessageScheduleCustom::ID: {
-      auto custom_schedule = telegram_api::move_object_as<telegram_api::businessAwayMessageScheduleCustom>(schedule);
-      type_ = Type::Custom;
-      start_date_ = custom_schedule->start_date_;
-      end_date_ = custom_schedule->end_date_;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-BusinessAwayMessageSchedule::BusinessAwayMessageSchedule(
-    td_api::object_ptr<td_api::BusinessAwayMessageSchedule> schedule) {
-  if (schedule == nullptr) {
-    return;
-  }
-  switch (schedule->get_id()) {
-    case td_api::businessAwayMessageScheduleAlways::ID:
-      type_ = Type::Always;
-      break;
-    case td_api::businessAwayMessageScheduleOutsideOfOpeningHours::ID:
-      type_ = Type::OutsideOfWorkHours;
-      break;
-    case td_api::businessAwayMessageScheduleCustom::ID: {
-      auto custom_schedule = td_api::move_object_as<td_api::businessAwayMessageScheduleCustom>(schedule);
-      type_ = Type::Custom;
-      start_date_ = custom_schedule->start_date_;
-      end_date_ = custom_schedule->end_date_;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-td_api::object_ptr<td_api::BusinessAwayMessageSchedule>
-BusinessAwayMessageSchedule::get_business_away_message_schedule_object() const {
-  switch (type_) {
-    case Type::Always:
-      return td_api::make_object<td_api::businessAwayMessageScheduleAlways>();
-    case Type::OutsideOfWorkHours:
-      return td_api::make_object<td_api::businessAwayMessageScheduleOutsideOfOpeningHours>();
-    case Type::Custom:
-      return td_api::make_object<td_api::businessAwayMessageScheduleCustom>(start_date_, end_date_);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::BusinessAwayMessageSchedule>
-BusinessAwayMessageSchedule::get_input_business_away_message_schedule() const {
-  switch (type_) {
-    case Type::Always:
-      return telegram_api::make_object<telegram_api::businessAwayMessageScheduleAlways>();
-    case Type::OutsideOfWorkHours:
-      return telegram_api::make_object<telegram_api::businessAwayMessageScheduleOutsideWorkHours>();
-    case Type::Custom:
-      return telegram_api::make_object<telegram_api::businessAwayMessageScheduleCustom>(start_date_, end_date_);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-bool operator==(const BusinessAwayMessageSchedule &lhs, const BusinessAwayMessageSchedule &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.start_date_ == rhs.start_date_ && lhs.end_date_ == rhs.end_date_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessAwayMessageSchedule &schedule) {
-  switch (schedule.type_) {
-    case BusinessAwayMessageSchedule::Type::Always:
-      return string_builder << "sent always";
-    case BusinessAwayMessageSchedule::Type::OutsideOfWorkHours:
-      return string_builder << "sent outside of opening hours";
-    case BusinessAwayMessageSchedule::Type::Custom:
-      return string_builder << "sent from " << schedule.start_date_ << " to " << schedule.end_date_;
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.h b/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.h
deleted file mode 100644
index 2e88556939..0000000000
--- a/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.h
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class BusinessAwayMessageSchedule {
- public:
-  BusinessAwayMessageSchedule() = default;
-
-  explicit BusinessAwayMessageSchedule(telegram_api::object_ptr<telegram_api::BusinessAwayMessageSchedule> schedule);
-
-  explicit BusinessAwayMessageSchedule(td_api::object_ptr<td_api::BusinessAwayMessageSchedule> schedule);
-
-  td_api::object_ptr<td_api::BusinessAwayMessageSchedule> get_business_away_message_schedule_object() const;
-
-  telegram_api::object_ptr<telegram_api::BusinessAwayMessageSchedule> get_input_business_away_message_schedule() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  enum class Type : int32 { Always, OutsideOfWorkHours, Custom };
-  Type type_ = Type::Always;
-  int32 start_date_ = 0;
-  int32 end_date_ = 0;
-
-  friend bool operator==(const BusinessAwayMessageSchedule &lhs, const BusinessAwayMessageSchedule &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessAwayMessageSchedule &schedule);
-};
-
-bool operator==(const BusinessAwayMessageSchedule &lhs, const BusinessAwayMessageSchedule &rhs);
-
-inline bool operator!=(const BusinessAwayMessageSchedule &lhs, const BusinessAwayMessageSchedule &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessAwayMessageSchedule &schedule);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.hpp b/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.hpp
deleted file mode 100644
index adbe953a6b..0000000000
--- a/third-party/td/td/td/telegram/BusinessAwayMessageSchedule.hpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessAwayMessageSchedule.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessAwayMessageSchedule::store(StorerT &storer) const {
-  bool has_start_date = start_date_ != 0;
-  bool has_end_date = end_date_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_start_date);
-  STORE_FLAG(has_end_date);
-  END_STORE_FLAGS();
-  td::store(type_, storer);
-  if (has_start_date) {
-    td::store(start_date_, storer);
-  }
-  if (has_end_date) {
-    td::store(end_date_, storer);
-  }
-}
-
-template <class ParserT>
-void BusinessAwayMessageSchedule::parse(ParserT &parser) {
-  bool has_start_date;
-  bool has_end_date;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_start_date);
-  PARSE_FLAG(has_end_date);
-  END_PARSE_FLAGS();
-  td::parse(type_, parser);
-  if (has_start_date) {
-    td::parse(start_date_, parser);
-  }
-  if (has_end_date) {
-    td::parse(end_date_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessBotManageBar.cpp b/third-party/td/td/td/telegram/BusinessBotManageBar.cpp
deleted file mode 100644
index deb248d72e..0000000000
--- a/third-party/td/td/td/telegram/BusinessBotManageBar.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessBotManageBar.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-unique_ptr<BusinessBotManageBar> BusinessBotManageBar::create(bool is_business_bot_paused, bool can_business_bot_reply,
-                                                              UserId business_bot_user_id,
-                                                              string business_bot_manage_url) {
-  auto action_bar = make_unique<BusinessBotManageBar>();
-  action_bar->is_business_bot_paused_ = is_business_bot_paused;
-  action_bar->can_business_bot_reply_ = can_business_bot_reply;
-  action_bar->business_bot_user_id_ = business_bot_user_id;
-  action_bar->business_bot_manage_url_ = std::move(business_bot_manage_url);
-  if (action_bar->is_empty()) {
-    return nullptr;
-  }
-  return action_bar;
-}
-
-bool BusinessBotManageBar::is_empty() const {
-  return !business_bot_user_id_.is_valid();
-}
-
-void BusinessBotManageBar::fix(DialogId dialog_id) {
-  bool is_valid = business_bot_user_id_.is_valid()
-                      ? dialog_id.get_type() == DialogType::User && !business_bot_manage_url_.empty()
-                      : business_bot_manage_url_.empty() && !is_business_bot_paused_ && !can_business_bot_reply_;
-  if (!is_valid) {
-    LOG(ERROR) << "Receive business bot " << business_bot_user_id_ << " in " << dialog_id << " with manage URL "
-               << business_bot_manage_url_;
-    *this = {};
-  }
-}
-
-td_api::object_ptr<td_api::businessBotManageBar> BusinessBotManageBar::get_business_bot_manage_bar_object(
-    Td *td) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::businessBotManageBar>(
-      td->user_manager_->get_user_id_object(business_bot_user_id_, "businessBotManageBar"), business_bot_manage_url_,
-      is_business_bot_paused_, can_business_bot_reply_);
-}
-
-bool BusinessBotManageBar::on_user_deleted() {
-  if (is_empty()) {
-    return false;
-  }
-
-  *this = {};
-  return true;
-}
-
-bool BusinessBotManageBar::set_business_bot_is_paused(bool is_paused) {
-  if (!business_bot_user_id_.is_valid() || is_business_bot_paused_ == is_paused) {
-    return false;
-  }
-  is_business_bot_paused_ = is_paused;
-  return true;
-}
-
-void BusinessBotManageBar::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add(business_bot_user_id_);
-}
-
-bool operator==(const BusinessBotManageBar &lhs, const BusinessBotManageBar &rhs) {
-  return lhs.business_bot_user_id_ == rhs.business_bot_user_id_ &&
-         lhs.business_bot_manage_url_ == rhs.business_bot_manage_url_ &&
-         lhs.is_business_bot_paused_ == rhs.is_business_bot_paused_ &&
-         lhs.can_business_bot_reply_ == rhs.can_business_bot_reply_;
-}
-
-bool operator!=(const BusinessBotManageBar &lhs, const BusinessBotManageBar &rhs) {
-  return !(lhs == rhs);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessBotManageBar.h b/third-party/td/td/td/telegram/BusinessBotManageBar.h
deleted file mode 100644
index ac6b16cdad..0000000000
--- a/third-party/td/td/td/telegram/BusinessBotManageBar.h
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class BusinessBotManageBar {
-  UserId business_bot_user_id_;
-  string business_bot_manage_url_;
-  bool is_business_bot_paused_ = false;
-  bool can_business_bot_reply_ = false;
-
-  friend bool operator==(const BusinessBotManageBar &lhs, const BusinessBotManageBar &rhs);
-
- public:
-  static unique_ptr<BusinessBotManageBar> create(bool is_business_bot_paused, bool can_business_bot_reply,
-                                                 UserId business_bot_user_id, string business_bot_manage_url);
-
-  bool is_empty() const;
-
-  void fix(DialogId dialog_id);
-
-  td_api::object_ptr<td_api::businessBotManageBar> get_business_bot_manage_bar_object(Td *td) const;
-
-  bool on_user_deleted();
-
-  bool set_business_bot_is_paused(bool is_paused);
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_business_bot_user_id = business_bot_user_id_.is_valid();
-    bool has_business_bot_manage_url = !business_bot_manage_url_.empty();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_business_bot_paused_);
-    STORE_FLAG(can_business_bot_reply_);
-    STORE_FLAG(has_business_bot_user_id);
-    STORE_FLAG(has_business_bot_manage_url);
-    END_STORE_FLAGS();
-    if (has_business_bot_user_id) {
-      td::store(business_bot_user_id_, storer);
-    }
-    if (has_business_bot_manage_url) {
-      td::store(business_bot_manage_url_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_business_bot_user_id;
-    bool has_business_bot_manage_url;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_business_bot_paused_);
-    PARSE_FLAG(can_business_bot_reply_);
-    PARSE_FLAG(has_business_bot_user_id);
-    PARSE_FLAG(has_business_bot_manage_url);
-    END_PARSE_FLAGS();
-    if (has_business_bot_user_id) {
-      td::parse(business_bot_user_id_, parser);
-    }
-    if (has_business_bot_manage_url) {
-      td::parse(business_bot_manage_url_, parser);
-    }
-  }
-};
-
-bool operator==(const BusinessBotManageBar &lhs, const BusinessBotManageBar &rhs);
-
-bool operator!=(const BusinessBotManageBar &lhs, const BusinessBotManageBar &rhs);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessBotRights.cpp b/third-party/td/td/td/telegram/BusinessBotRights.cpp
deleted file mode 100644
index 082af7379d..0000000000
--- a/third-party/td/td/td/telegram/BusinessBotRights.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessBotRights.h"
-
-namespace td {
-
-BusinessBotRights::BusinessBotRights(const telegram_api::object_ptr<telegram_api::businessBotRights> &bot_rights) {
-  if (bot_rights == nullptr) {
-    return;
-  }
-  can_reply_ = bot_rights->reply_;
-  can_read_messages_ = bot_rights->read_messages_;
-  can_delete_sent_messages_ = bot_rights->delete_sent_messages_;
-  can_delete_received_messages_ = bot_rights->delete_received_messages_;
-  can_edit_name_ = bot_rights->edit_name_;
-  can_edit_bio_ = bot_rights->edit_bio_;
-  can_edit_profile_photo_ = bot_rights->edit_profile_photo_;
-  can_edit_username_ = bot_rights->edit_username_;
-  can_view_gifts_ = bot_rights->view_gifts_;
-  can_sell_gifts_ = bot_rights->sell_gifts_;
-  can_change_gift_settings_ = bot_rights->change_gift_settings_;
-  can_transfer_and_upgrade_gifts_ = bot_rights->transfer_and_upgrade_gifts_;
-  can_transfer_stars_ = bot_rights->transfer_stars_;
-  can_manage_stories_ = bot_rights->manage_stories_;
-}
-
-BusinessBotRights::BusinessBotRights(const td_api::object_ptr<td_api::businessBotRights> &bot_rights) {
-  if (bot_rights == nullptr) {
-    return;
-  }
-  can_reply_ = bot_rights->can_reply_;
-  can_read_messages_ = bot_rights->can_read_messages_;
-  can_delete_sent_messages_ = bot_rights->can_delete_sent_messages_;
-  can_delete_received_messages_ = bot_rights->can_delete_all_messages_;
-  can_edit_name_ = bot_rights->can_edit_name_;
-  can_edit_bio_ = bot_rights->can_edit_bio_;
-  can_edit_profile_photo_ = bot_rights->can_edit_profile_photo_;
-  can_edit_username_ = bot_rights->can_edit_username_;
-  can_view_gifts_ = bot_rights->can_view_gifts_and_stars_;
-  can_sell_gifts_ = bot_rights->can_sell_gifts_;
-  can_change_gift_settings_ = bot_rights->can_change_gift_settings_;
-  can_transfer_and_upgrade_gifts_ = bot_rights->can_transfer_and_upgrade_gifts_;
-  can_transfer_stars_ = bot_rights->can_transfer_stars_;
-  can_manage_stories_ = bot_rights->can_manage_stories_;
-}
-
-BusinessBotRights BusinessBotRights::legacy(bool can_reply) {
-  BusinessBotRights result;
-  result.can_reply_ = can_reply;
-  return result;
-}
-
-td_api::object_ptr<td_api::businessBotRights> BusinessBotRights::get_business_bot_rights_object() const {
-  return td_api::make_object<td_api::businessBotRights>(
-      can_reply_, can_read_messages_, can_delete_sent_messages_, can_delete_received_messages_, can_edit_name_,
-      can_edit_bio_, can_edit_profile_photo_, can_edit_username_, can_view_gifts_, can_sell_gifts_,
-      can_change_gift_settings_, can_transfer_and_upgrade_gifts_, can_transfer_stars_, can_manage_stories_);
-}
-
-telegram_api::object_ptr<telegram_api::businessBotRights> BusinessBotRights::get_input_business_bot_rights() const {
-  return telegram_api::make_object<telegram_api::businessBotRights>(
-      0, can_reply_, can_read_messages_, can_delete_sent_messages_, can_delete_received_messages_, can_edit_name_,
-      can_edit_bio_, can_edit_profile_photo_, can_edit_username_, can_view_gifts_, can_sell_gifts_,
-      can_change_gift_settings_, can_transfer_and_upgrade_gifts_, can_transfer_stars_, can_manage_stories_);
-}
-
-bool operator==(const BusinessBotRights &lhs, const BusinessBotRights &rhs) {
-  return lhs.can_reply_ == rhs.can_reply_ && lhs.can_read_messages_ == rhs.can_read_messages_ &&
-         lhs.can_delete_sent_messages_ == rhs.can_delete_sent_messages_ &&
-         lhs.can_delete_received_messages_ == rhs.can_delete_received_messages_ &&
-         lhs.can_edit_name_ == rhs.can_edit_name_ && lhs.can_edit_bio_ == rhs.can_edit_bio_ &&
-         lhs.can_edit_profile_photo_ == rhs.can_edit_profile_photo_ &&
-         lhs.can_edit_username_ == rhs.can_edit_username_ && lhs.can_view_gifts_ == rhs.can_view_gifts_ &&
-         lhs.can_sell_gifts_ == rhs.can_sell_gifts_ && lhs.can_change_gift_settings_ == rhs.can_change_gift_settings_ &&
-         lhs.can_transfer_and_upgrade_gifts_ == rhs.can_transfer_and_upgrade_gifts_ &&
-         lhs.can_transfer_stars_ == rhs.can_transfer_stars_ && lhs.can_manage_stories_ == rhs.can_manage_stories_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessBotRights &bot_rights) {
-  string_builder << "BusinessBotRights";
-  if (bot_rights.can_reply_) {
-    string_builder << "(reply)";
-  }
-  if (bot_rights.can_read_messages_) {
-    string_builder << "(read_messages)";
-  }
-  if (bot_rights.can_delete_sent_messages_) {
-    string_builder << "(delete_sent_messages)";
-  }
-  if (bot_rights.can_delete_received_messages_) {
-    string_builder << "(delete_received_messages)";
-  }
-  if (bot_rights.can_edit_name_) {
-    string_builder << "(edit_name)";
-  }
-  if (bot_rights.can_edit_bio_) {
-    string_builder << "(edit_bio)";
-  }
-  if (bot_rights.can_edit_profile_photo_) {
-    string_builder << "(edit_profile_photo)";
-  }
-  if (bot_rights.can_edit_username_) {
-    string_builder << "(edit_username)";
-  }
-  if (bot_rights.can_view_gifts_) {
-    string_builder << "(view_gifts)";
-  }
-  if (bot_rights.can_sell_gifts_) {
-    string_builder << "(sell_gifts)";
-  }
-  if (bot_rights.can_change_gift_settings_) {
-    string_builder << "(change_gift_settings)";
-  }
-  if (bot_rights.can_transfer_and_upgrade_gifts_) {
-    string_builder << "(transfer_and_upgrade_gifts)";
-  }
-  if (bot_rights.can_transfer_stars_) {
-    string_builder << "(transfer_stars)";
-  }
-  if (bot_rights.can_manage_stories_) {
-    string_builder << "(manage_stories)";
-  }
-  return string_builder << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessBotRights.h b/third-party/td/td/td/telegram/BusinessBotRights.h
deleted file mode 100644
index 9e6d175ed3..0000000000
--- a/third-party/td/td/td/telegram/BusinessBotRights.h
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class BusinessBotRights {
- public:
-  BusinessBotRights() = default;
-
-  explicit BusinessBotRights(const telegram_api::object_ptr<telegram_api::businessBotRights> &bot_rights);
-
-  explicit BusinessBotRights(const td_api::object_ptr<td_api::businessBotRights> &bot_rights);
-
-  static BusinessBotRights legacy(bool can_reply);
-
-  td_api::object_ptr<td_api::businessBotRights> get_business_bot_rights_object() const;
-
-  telegram_api::object_ptr<telegram_api::businessBotRights> get_input_business_bot_rights() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  bool can_reply_ = false;
-  bool can_read_messages_ = false;
-  bool can_delete_sent_messages_ = false;
-  bool can_delete_received_messages_ = false;
-  bool can_edit_name_ = false;
-  bool can_edit_bio_ = false;
-  bool can_edit_profile_photo_ = false;
-  bool can_edit_username_ = false;
-  bool can_view_gifts_ = false;
-  bool can_sell_gifts_ = false;
-  bool can_change_gift_settings_ = false;
-  bool can_transfer_and_upgrade_gifts_ = false;
-  bool can_transfer_stars_ = false;
-  bool can_manage_stories_ = false;
-
-  friend bool operator==(const BusinessBotRights &lhs, const BusinessBotRights &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessBotRights &bot_rights);
-};
-
-bool operator==(const BusinessBotRights &lhs, const BusinessBotRights &rhs);
-
-inline bool operator!=(const BusinessBotRights &lhs, const BusinessBotRights &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessBotRights &bot_rights);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessBotRights.hpp b/third-party/td/td/td/telegram/BusinessBotRights.hpp
deleted file mode 100644
index bc7b23f4d2..0000000000
--- a/third-party/td/td/td/telegram/BusinessBotRights.hpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessBotRights.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessBotRights::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(can_reply_);
-  STORE_FLAG(can_read_messages_);
-  STORE_FLAG(can_delete_sent_messages_);
-  STORE_FLAG(can_delete_received_messages_);
-  STORE_FLAG(can_edit_name_);
-  STORE_FLAG(can_edit_bio_);
-  STORE_FLAG(can_edit_profile_photo_);
-  STORE_FLAG(can_edit_username_);
-  STORE_FLAG(can_view_gifts_);
-  STORE_FLAG(can_sell_gifts_);
-  STORE_FLAG(can_change_gift_settings_);
-  STORE_FLAG(can_transfer_and_upgrade_gifts_);
-  STORE_FLAG(can_transfer_stars_);
-  STORE_FLAG(can_manage_stories_);
-  END_STORE_FLAGS();
-}
-
-template <class ParserT>
-void BusinessBotRights::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(can_reply_);
-  PARSE_FLAG(can_read_messages_);
-  PARSE_FLAG(can_delete_sent_messages_);
-  PARSE_FLAG(can_delete_received_messages_);
-  PARSE_FLAG(can_edit_name_);
-  PARSE_FLAG(can_edit_bio_);
-  PARSE_FLAG(can_edit_profile_photo_);
-  PARSE_FLAG(can_edit_username_);
-  PARSE_FLAG(can_view_gifts_);
-  PARSE_FLAG(can_sell_gifts_);
-  PARSE_FLAG(can_change_gift_settings_);
-  PARSE_FLAG(can_transfer_and_upgrade_gifts_);
-  PARSE_FLAG(can_transfer_stars_);
-  PARSE_FLAG(can_manage_stories_);
-  END_PARSE_FLAGS();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessChatLink.cpp b/third-party/td/td/td/telegram/BusinessChatLink.cpp
deleted file mode 100644
index 8259ea86e9..0000000000
--- a/third-party/td/td/td/telegram/BusinessChatLink.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessChatLink.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-BusinessChatLink::BusinessChatLink(const UserManager *user_manager,
-                                   telegram_api::object_ptr<telegram_api::businessChatLink> &&link)
-    : link_(std::move(link->link_))
-    , text_(get_message_text(user_manager, std::move(link->message_), std::move(link->entities_), true, true, 0, false,
-                             "BusinessChatLink"))
-    , title_(std::move(link->title_))
-    , view_count_(link->views_) {
-}
-
-td_api::object_ptr<td_api::businessChatLink> BusinessChatLink::get_business_chat_link_object(
-    const UserManager *user_manager) const {
-  return td_api::make_object<td_api::businessChatLink>(link_, get_formatted_text_object(user_manager, text_, true, -1),
-                                                       title_, view_count_);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessChatLink &link) {
-  return string_builder << '[' << link.link_ << ' ' << link.title_ << ' ' << link.view_count_ << ']';
-}
-
-BusinessChatLinks::BusinessChatLinks(const UserManager *user_manager,
-                                     vector<telegram_api::object_ptr<telegram_api::businessChatLink>> &&links) {
-  for (auto &link : links) {
-    business_chat_links_.emplace_back(user_manager, std::move(link));
-    if (!business_chat_links_.back().is_valid()) {
-      LOG(ERROR) << "Receive invalid " << business_chat_links_.back() << " business link";
-      business_chat_links_.pop_back();
-    }
-  }
-}
-
-td_api::object_ptr<td_api::businessChatLinks> BusinessChatLinks::get_business_chat_links_object(
-    const UserManager *user_manager) const {
-  return td_api::make_object<td_api::businessChatLinks>(transform(
-      business_chat_links_,
-      [user_manager](const BusinessChatLink &link) { return link.get_business_chat_link_object(user_manager); }));
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessChatLinks &links) {
-  return string_builder << links.business_chat_links_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessChatLink.h b/third-party/td/td/td/telegram/BusinessChatLink.h
deleted file mode 100644
index c879bb8ac3..0000000000
--- a/third-party/td/td/td/telegram/BusinessChatLink.h
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class UserManager;
-
-class BusinessChatLink {
-  string link_;
-  FormattedText text_;
-  string title_;
-  int32 view_count_ = 0;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessChatLink &link);
-
- public:
-  BusinessChatLink(const UserManager *user_manager, telegram_api::object_ptr<telegram_api::businessChatLink> &&link);
-
-  bool is_valid() const {
-    return !link_.empty();
-  }
-
-  td_api::object_ptr<td_api::businessChatLink> get_business_chat_link_object(const UserManager *user_manager) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessChatLink &link);
-
-class BusinessChatLinks {
-  vector<BusinessChatLink> business_chat_links_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessChatLinks &links);
-
- public:
-  BusinessChatLinks(const UserManager *user_manager,
-                    vector<telegram_api::object_ptr<telegram_api::businessChatLink>> &&links);
-
-  td_api::object_ptr<td_api::businessChatLinks> get_business_chat_links_object(const UserManager *user_manager) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessChatLinks &links);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessConnectedBot.cpp b/third-party/td/td/td/telegram/BusinessConnectedBot.cpp
deleted file mode 100644
index 07210469ad..0000000000
--- a/third-party/td/td/td/telegram/BusinessConnectedBot.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessConnectedBot.h"
-
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-namespace td {
-
-BusinessConnectedBot::BusinessConnectedBot(telegram_api::object_ptr<telegram_api::connectedBot> connected_bot) {
-  CHECK(connected_bot != nullptr);
-  user_id_ = UserId(connected_bot->bot_id_);
-  recipients_ = BusinessRecipients(std::move(connected_bot->recipients_));
-  rights_ = BusinessBotRights(connected_bot->rights_);
-}
-
-BusinessConnectedBot::BusinessConnectedBot(td_api::object_ptr<td_api::businessConnectedBot> connected_bot) {
-  if (connected_bot == nullptr) {
-    return;
-  }
-  user_id_ = UserId(connected_bot->bot_user_id_);
-  recipients_ = BusinessRecipients(std::move(connected_bot->recipients_), true);
-  rights_ = BusinessBotRights(connected_bot->rights_);
-}
-
-td_api::object_ptr<td_api::businessConnectedBot> BusinessConnectedBot::get_business_connected_bot_object(Td *td) const {
-  CHECK(is_valid());
-  return td_api::make_object<td_api::businessConnectedBot>(
-      td->user_manager_->get_user_id_object(user_id_, "businessConnectedBot"),
-      recipients_.get_business_recipients_object(td), rights_.get_business_bot_rights_object());
-}
-
-bool operator==(const BusinessConnectedBot &lhs, const BusinessConnectedBot &rhs) {
-  return lhs.user_id_ == rhs.user_id_ && lhs.recipients_ == rhs.recipients_ && lhs.rights_ == rhs.rights_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessConnectedBot &connected_bot) {
-  return string_builder << "connected bot " << connected_bot.user_id_ << ' ' << connected_bot.recipients_ << " with "
-                        << connected_bot.rights_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessConnectedBot.h b/third-party/td/td/td/telegram/BusinessConnectedBot.h
deleted file mode 100644
index 60fe4e3fd6..0000000000
--- a/third-party/td/td/td/telegram/BusinessConnectedBot.h
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessBotRights.h"
-#include "td/telegram/BusinessRecipients.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class BusinessConnectedBot {
- public:
-  BusinessConnectedBot() = default;
-
-  explicit BusinessConnectedBot(telegram_api::object_ptr<telegram_api::connectedBot> connected_bot);
-
-  explicit BusinessConnectedBot(td_api::object_ptr<td_api::businessConnectedBot> connected_bot);
-
-  td_api::object_ptr<td_api::businessConnectedBot> get_business_connected_bot_object(Td *td) const;
-
-  bool is_valid() const {
-    return user_id_.is_valid();
-  }
-
-  UserId get_user_id() const {
-    return user_id_;
-  }
-
-  const BusinessRecipients &get_recipients() const {
-    return recipients_;
-  }
-
-  const BusinessBotRights &get_rights() const {
-    return rights_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  UserId user_id_;
-  BusinessRecipients recipients_;
-  BusinessBotRights rights_;
-
-  friend bool operator==(const BusinessConnectedBot &lhs, const BusinessConnectedBot &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessConnectedBot &connected_bot);
-};
-
-bool operator==(const BusinessConnectedBot &lhs, const BusinessConnectedBot &rhs);
-
-inline bool operator!=(const BusinessConnectedBot &lhs, const BusinessConnectedBot &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessConnectedBot &connected_bot);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessConnectedBot.hpp b/third-party/td/td/td/telegram/BusinessConnectedBot.hpp
deleted file mode 100644
index 27f7e36a16..0000000000
--- a/third-party/td/td/td/telegram/BusinessConnectedBot.hpp
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessBotRights.h"
-#include "td/telegram/BusinessBotRights.hpp"
-#include "td/telegram/BusinessConnectedBot.h"
-#include "td/telegram/BusinessRecipients.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessConnectedBot::store(StorerT &storer) const {
-  bool can_reply = false;
-  bool has_rights = true;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(can_reply_);
-  STORE_FLAG(has_rights);
-  END_STORE_FLAGS();
-  td::store(user_id_, storer);
-  td::store(recipients_, storer);
-  td::store(rights_, storer);
-}
-
-template <class ParserT>
-void BusinessConnectedBot::parse(ParserT &parser) {
-  bool can_reply;
-  bool has_rights;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(can_reply);
-  PARSE_FLAG(has_rights);
-  END_PARSE_FLAGS();
-  td::parse(user_id_, parser);
-  td::parse(recipients_, parser);
-  if (has_rights) {
-    td::parse(rights_, parser);
-  } else {
-    rights_ = BusinessBotRights::legacy(can_reply);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessConnectionId.h b/third-party/td/td/td/telegram/BusinessConnectionId.h
deleted file mode 100644
index 5627359340..0000000000
--- a/third-party/td/td/td/telegram/BusinessConnectionId.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class BusinessConnectionId {
-  string business_connection_id_;
-
- public:
-  BusinessConnectionId() = default;
-
-  explicit BusinessConnectionId(string &&business_connection_id)
-      : business_connection_id_(std::move(business_connection_id)) {
-  }
-
-  explicit BusinessConnectionId(const string &business_connection_id)
-      : business_connection_id_(business_connection_id) {
-  }
-
-  bool is_empty() const {
-    return business_connection_id_.empty();
-  }
-
-  bool is_valid() const {
-    return !business_connection_id_.empty();
-  }
-
-  const string &get() const {
-    return business_connection_id_;
-  }
-
-  bool operator==(const BusinessConnectionId &other) const {
-    return business_connection_id_ == other.business_connection_id_;
-  }
-
-  bool operator!=(const BusinessConnectionId &other) const {
-    return business_connection_id_ != other.business_connection_id_;
-  }
-
-  telegram_api::object_ptr<telegram_api::Function> get_invoke_prefix() const {
-    if (is_empty()) {
-      return nullptr;
-    }
-    return telegram_api::make_object<telegram_api::invokeWithBusinessConnectionPrefix>(business_connection_id_);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_string(business_connection_id_);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    business_connection_id_ = parser.template fetch_string<string>();
-  }
-};
-
-struct BusinessConnectionIdHash {
-  uint32 operator()(BusinessConnectionId business_connection_id) const {
-    return Hash<string>()(business_connection_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, BusinessConnectionId business_connection_id) {
-  return string_builder << "business connection " << business_connection_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessConnectionManager.cpp b/third-party/td/td/td/telegram/BusinessConnectionManager.cpp
deleted file mode 100644
index ff34cb8e3c..0000000000
--- a/third-party/td/td/td/telegram/BusinessConnectionManager.cpp
+++ /dev/null
@@ -1,2019 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessConnectionManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BusinessBotRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/InputMessageText.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageCopyOptions.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageQueryManager.h"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/MessageSelfDestructType.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StarAmount.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-
-namespace td {
-
-class GetBotBusinessConnectionQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::Updates>> promise_;
-
- public:
-  explicit GetBotBusinessConnectionQuery(Promise<telegram_api::object_ptr<telegram_api::Updates>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const BusinessConnectionId &connection_id) {
-    send_query(G()->net_query_creator().create(telegram_api::account_getBotBusinessConnection(connection_id.get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getBotBusinessConnection>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetBotBusinessConnectionQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-struct BusinessConnectionManager::BusinessConnection {
-  BusinessConnectionId connection_id_;
-  UserId user_id_;
-  DcId dc_id_;
-  int32 connection_date_ = 0;
-  BusinessBotRights rights_;
-  bool is_disabled_ = false;
-
-  explicit BusinessConnection(const telegram_api::object_ptr<telegram_api::botBusinessConnection> &connection)
-      : connection_id_(connection->connection_id_)
-      , user_id_(connection->user_id_)
-      , dc_id_(DcId::create(connection->dc_id_))
-      , connection_date_(connection->date_)
-      , rights_(connection->rights_)
-      , is_disabled_(connection->disabled_) {
-  }
-
-  BusinessConnection(const BusinessConnection &) = delete;
-  BusinessConnection &operator=(const BusinessConnection &) = delete;
-  BusinessConnection(BusinessConnection &&) = delete;
-  BusinessConnection &operator=(BusinessConnection &&) = delete;
-  ~BusinessConnection() = default;
-
-  bool is_valid() const {
-    return connection_id_.is_valid() && user_id_.is_valid() && !dc_id_.is_empty() && connection_date_ > 0;
-  }
-
-  td_api::object_ptr<td_api::businessConnection> get_business_connection_object(Td *td) const {
-    DialogId user_dialog_id(user_id_);
-    td->dialog_manager_->force_create_dialog(user_dialog_id, "get_business_connection_object");
-    return td_api::make_object<td_api::businessConnection>(
-        connection_id_.get(), td->user_manager_->get_user_id_object(user_id_, "businessConnection"),
-        td->dialog_manager_->get_chat_id_object(user_dialog_id, "businessConnection"), connection_date_,
-        is_disabled_ ? nullptr : rights_.get_business_bot_rights_object(), !is_disabled_);
-  }
-};
-
-struct BusinessConnectionManager::PendingMessage {
-  BusinessConnectionId business_connection_id_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-  MessageInputReplyTo input_reply_to_;
-  string send_emoji_;
-  MessageSelfDestructType ttl_;
-  unique_ptr<MessageContent> content_;
-  FileUploadId file_upload_id_;
-  FileUploadId thumbnail_file_upload_id_;
-  unique_ptr<ReplyMarkup> reply_markup_;
-  int64 random_id_ = 0;
-  MessageEffectId effect_id_;
-  bool noforwards_ = false;
-  bool disable_notification_ = false;
-  bool invert_media_ = false;
-  bool disable_web_page_preview_ = false;
-
-  void init_file_upload_ids(Td *td) {
-    CHECK(file_upload_id_ == FileUploadId());
-    if (content_->get_type() == MessageContentType::PaidMedia) {
-      return;
-    }
-    auto file_id =
-        get_message_content_any_file_id(content_.get());  // any_file_id, because it could be a photo sent by ID
-    if (!file_id.is_valid()) {
-      return;
-    }
-    file_upload_id_ = {file_id, FileManager::get_internal_upload_id()};
-    FileView file_view = td->file_manager_->get_file_view(file_id);
-    if (get_file_type_class(file_view.get_type()) != FileTypeClass::Photo) {
-      auto thumbnail_file_id = get_message_content_thumbnail_file_id(content_.get(), td);
-      if (thumbnail_file_id.is_valid()) {
-        thumbnail_file_upload_id_ = {thumbnail_file_id, FileManager::get_internal_upload_id()};
-      }
-    }
-  }
-};
-
-class BusinessConnectionManager::SendBusinessMessageQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessMessage>> promise_;
-  unique_ptr<PendingMessage> message_;
-
- public:
-  explicit SendBusinessMessageQuery(Promise<td_api::object_ptr<td_api::businessMessage>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(unique_ptr<PendingMessage> message) {
-    message_ = std::move(message);
-
-    int32 flags = 0;
-    if (message_->disable_web_page_preview_) {
-      flags |= telegram_api::messages_sendMessage::NO_WEBPAGE_MASK;
-    }
-    if (message_->disable_notification_) {
-      flags |= telegram_api::messages_sendMessage::SILENT_MASK;
-    }
-    if (message_->noforwards_) {
-      flags |= telegram_api::messages_sendMessage::NOFORWARDS_MASK;
-    }
-    if (message_->effect_id_.is_valid()) {
-      flags |= telegram_api::messages_sendMessage::EFFECT_MASK;
-    }
-    if (message_->invert_media_) {
-      flags |= telegram_api::messages_sendMessage::INVERT_MEDIA_MASK;
-    }
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(message_->dialog_id_, AccessRights::Know);
-    CHECK(input_peer != nullptr);
-
-    auto reply_to = message_->input_reply_to_.get_input_reply_to(td_, MessageId());
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMessage::REPLY_TO_MASK;
-    }
-
-    const FormattedText *message_text = get_message_content_text(message_->content_.get());
-    CHECK(message_text != nullptr);
-    auto entities = get_input_message_entities(td_->user_manager_.get(), message_text, "SendBusinessMessageQuery");
-    if (!entities.empty()) {
-      flags |= telegram_api::messages_sendMessage::ENTITIES_MASK;
-    }
-
-    if (message_->reply_markup_ != nullptr) {
-      flags |= telegram_api::messages_sendMessage::REPLY_MARKUP_MASK;
-    }
-
-    send_query(G()->net_query_creator().create_with_prefix(
-        message_->business_connection_id_.get_invoke_prefix(),
-        telegram_api::messages_sendMessage(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                           false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                           false /*ignored*/, std::move(input_peer), std::move(reply_to),
-                                           message_text->text, message_->random_id_,
-                                           get_input_reply_markup(td_->user_manager_.get(), message_->reply_markup_),
-                                           std::move(entities), 0, nullptr, nullptr, message_->effect_id_.get(), 0),
-        td_->business_connection_manager_->get_business_connection_dc_id(message_->business_connection_id_),
-        {{message_->dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendBusinessMessageQuery: " << to_string(ptr);
-    td_->business_connection_manager_->process_sent_business_message(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendBusinessMessageQuery: " << status;
-    td_->business_connection_manager_->on_fail_send_message(std::move(message_), status);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BusinessConnectionManager::SendBusinessMediaQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessMessage>> promise_;
-  unique_ptr<PendingMessage> message_;
-
- public:
-  explicit SendBusinessMediaQuery(Promise<td_api::object_ptr<td_api::businessMessage>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(unique_ptr<PendingMessage> message, telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-    CHECK(input_media != nullptr);
-    message_ = std::move(message);
-
-    int32 flags = 0;
-    if (message_->disable_notification_) {
-      flags |= telegram_api::messages_sendMedia::SILENT_MASK;
-    }
-    if (message_->noforwards_) {
-      flags |= telegram_api::messages_sendMedia::NOFORWARDS_MASK;
-    }
-    if (message_->effect_id_.is_valid()) {
-      flags |= telegram_api::messages_sendMedia::EFFECT_MASK;
-    }
-    if (message_->invert_media_) {
-      flags |= telegram_api::messages_sendMedia::INVERT_MEDIA_MASK;
-    }
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(message_->dialog_id_, AccessRights::Know);
-    CHECK(input_peer != nullptr);
-
-    auto reply_to = message_->input_reply_to_.get_input_reply_to(td_, MessageId());
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMedia::REPLY_TO_MASK;
-    }
-
-    const FormattedText *message_text = get_message_content_text(message_->content_.get());
-    auto entities = get_input_message_entities(td_->user_manager_.get(), message_text, "SendBusinessMediaQuery");
-    if (!entities.empty()) {
-      flags |= telegram_api::messages_sendMedia::ENTITIES_MASK;
-    }
-
-    if (message_->reply_markup_ != nullptr) {
-      flags |= telegram_api::messages_sendMedia::REPLY_MARKUP_MASK;
-    }
-
-    send_query(G()->net_query_creator().create_with_prefix(
-        message_->business_connection_id_.get_invoke_prefix(),
-        telegram_api::messages_sendMedia(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                         false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                         std::move(input_peer), std::move(reply_to), std::move(input_media),
-                                         message_text == nullptr ? string() : message_text->text, message_->random_id_,
-                                         get_input_reply_markup(td_->user_manager_.get(), message_->reply_markup_),
-                                         std::move(entities), 0, nullptr, nullptr, message_->effect_id_.get(), 0),
-        td_->business_connection_manager_->get_business_connection_dc_id(message_->business_connection_id_),
-        {{message_->dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendBusinessMediaQuery: " << to_string(ptr);
-    td_->business_connection_manager_->process_sent_business_message(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendBusinessMediaQuery: " << status;
-    td_->business_connection_manager_->on_fail_send_message(std::move(message_), status);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BusinessConnectionManager::SendBusinessMultiMediaQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessMessages>> promise_;
-  vector<unique_ptr<PendingMessage>> messages_;
-
- public:
-  explicit SendBusinessMultiMediaQuery(Promise<td_api::object_ptr<td_api::businessMessages>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(vector<unique_ptr<PendingMessage>> &&messages,
-            vector<telegram_api::object_ptr<telegram_api::inputSingleMedia>> &&input_single_media) {
-    CHECK(!messages.empty());
-    messages_ = std::move(messages);
-
-    int32 flags = 0;
-    if (messages_[0]->disable_notification_) {
-      flags |= telegram_api::messages_sendMultiMedia::SILENT_MASK;
-    }
-    if (messages_[0]->noforwards_) {
-      flags |= telegram_api::messages_sendMultiMedia::NOFORWARDS_MASK;
-    }
-    if (messages_[0]->effect_id_.is_valid()) {
-      flags |= telegram_api::messages_sendMultiMedia::EFFECT_MASK;
-    }
-    if (messages_[0]->invert_media_) {
-      flags |= telegram_api::messages_sendMultiMedia::INVERT_MEDIA_MASK;
-    }
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(messages_[0]->dialog_id_, AccessRights::Know);
-    CHECK(input_peer != nullptr);
-
-    auto reply_to = messages_[0]->input_reply_to_.get_input_reply_to(td_, MessageId());
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMultiMedia::REPLY_TO_MASK;
-    }
-
-    send_query(G()->net_query_creator().create_with_prefix(
-        messages_[0]->business_connection_id_.get_invoke_prefix(),
-        telegram_api::messages_sendMultiMedia(
-            flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-            false /*ignored*/, false /*ignored*/, std::move(input_peer), std::move(reply_to),
-            std::move(input_single_media), 0, nullptr, nullptr, messages_[0]->effect_id_.get(), 0),
-        td_->business_connection_manager_->get_business_connection_dc_id(messages_[0]->business_connection_id_),
-        {{messages_[0]->dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMultiMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendBusinessMultiMediaQuery: " << to_string(ptr);
-    td_->business_connection_manager_->process_sent_business_message_album(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendBusinessMultiMediaQuery: " << status;
-    for (auto &message : messages_) {
-      td_->business_connection_manager_->on_fail_send_message(std::move(message), status);
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BusinessConnectionManager::UploadBusinessMediaQuery final : public Td::ResultHandler {
-  Promise<UploadMediaResult> promise_;
-  unique_ptr<PendingMessage> message_;
-  bool was_uploaded_ = false;
-  bool was_thumbnail_uploaded_ = false;
-
-  void delete_thumbnail() {
-    if (was_thumbnail_uploaded_) {
-      CHECK(message_->thumbnail_file_upload_id_.is_valid());
-      // always delete partial remote location for the thumbnail, because it can't be reused anyway
-      td_->file_manager_->delete_partial_remote_location(message_->thumbnail_file_upload_id_);
-      message_->thumbnail_file_upload_id_ = {};
-    }
-  }
-
- public:
-  explicit UploadBusinessMediaQuery(Promise<UploadMediaResult> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(unique_ptr<PendingMessage> message, telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-    CHECK(input_media != nullptr);
-    message_ = std::move(message);
-    was_uploaded_ = FileManager::extract_was_uploaded(input_media);
-    was_thumbnail_uploaded_ = FileManager::extract_was_thumbnail_uploaded(input_media);
-
-    if (was_uploaded_ && false) {
-      return on_error(Status::Error(400, "FILE_PART_1_MISSING"));
-    }
-
-    int32 flags = telegram_api::messages_uploadMedia::BUSINESS_CONNECTION_ID_MASK;
-    auto input_peer = td_->dialog_manager_->get_input_peer(message_->dialog_id_, AccessRights::Know);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_uploadMedia(
-        flags, message_->business_connection_id_.get(), std::move(input_peer), std::move(input_media))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_uploadMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    delete_thumbnail();
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UploadBusinessMediaQuery: " << to_string(ptr);
-    td_->business_connection_manager_->complete_upload_media(std::move(message_), std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for UploadBusinessMediaQuery: " << status;
-
-    if (was_uploaded_) {
-      delete_thumbnail();
-
-      auto bad_parts = FileManager::get_missing_file_parts(status);
-      if (!bad_parts.empty()) {
-        td_->business_connection_manager_->upload_media(std::move(message_), std::move(promise_), std::move(bad_parts));
-        return;
-      } else {
-        td_->file_manager_->delete_partial_remote_location_if_needed(message_->file_upload_id_, status);
-      }
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BusinessConnectionManager::EditBusinessMessageQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessMessage>> promise_;
-
- public:
-  explicit EditBusinessMessageQuery(Promise<td_api::object_ptr<td_api::businessMessage>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int32 flags, BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-            const string &text, vector<telegram_api::object_ptr<telegram_api::MessageEntity>> &&entities,
-            telegram_api::object_ptr<telegram_api::InputMedia> &&input_media, bool invert_media,
-            telegram_api::object_ptr<telegram_api::ReplyMarkup> &&reply_markup) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Know);
-    CHECK(input_peer != nullptr);
-
-    if (reply_markup != nullptr) {
-      flags |= telegram_api::messages_editMessage::REPLY_MARKUP_MASK;
-    }
-    if (!entities.empty()) {
-      flags |= telegram_api::messages_editMessage::ENTITIES_MASK;
-    }
-    if (!text.empty()) {
-      flags |= telegram_api::messages_editMessage::MESSAGE_MASK;
-    }
-    if (input_media != nullptr) {
-      flags |= telegram_api::messages_editMessage::MEDIA_MASK;
-    }
-    if (invert_media) {
-      flags |= telegram_api::messages_editMessage::INVERT_MEDIA_MASK;
-    }
-
-    int32 server_message_id = message_id.get_server_message_id().get();
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::messages_editMessage(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-                                           server_message_id, text, std::move(input_media), std::move(reply_markup),
-                                           std::move(entities), 0, 0),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditBusinessMessageQuery: " << to_string(ptr);
-    td_->business_connection_manager_->process_sent_business_message(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.code() != 403 && !(status.code() == 500 && G()->close_flag())) {
-      LOG(WARNING) << "Failed to edit business message with the error " << status.message();
-    } else {
-      LOG(INFO) << "Receive error for EditBusinessMessageQuery: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BusinessConnectionManager::StopBusinessPollQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessMessage>> promise_;
-
- public:
-  explicit StopBusinessPollQuery(Promise<td_api::object_ptr<td_api::businessMessage>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-            unique_ptr<ReplyMarkup> &&reply_markup) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Know);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = telegram_api::messages_editMessage::MEDIA_MASK;
-    auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), reply_markup);
-    if (input_reply_markup != nullptr) {
-      flags |= telegram_api::messages_editMessage::REPLY_MARKUP_MASK;
-    }
-
-    auto poll = telegram_api::make_object<telegram_api::poll>(
-        0, 0, true, false, false, false, telegram_api::make_object<telegram_api::textWithEntities>(string(), Auto()),
-        Auto(), 0, 0);
-    auto input_media = telegram_api::make_object<telegram_api::inputMediaPoll>(0, std::move(poll),
-                                                                               vector<BufferSlice>(), string(), Auto());
-    int32 server_message_id = message_id.get_server_message_id().get();
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::messages_editMessage(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-                                           server_message_id, string(), std::move(input_media),
-                                           std::move(input_reply_markup),
-                                           vector<telegram_api::object_ptr<telegram_api::MessageEntity>>(), 0, 0),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for StopBusinessPollQuery: " << to_string(ptr);
-    td_->business_connection_manager_->process_sent_business_message(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadBusinessMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ReadBusinessMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Know);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::messages_readHistory(std::move(input_peer), message_id.get_server_message_id().get()),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_readHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ReadBusinessMessageQuery: " << to_string(ptr);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteBusinessMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteBusinessMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, const vector<MessageId> &message_ids) {
-    int32 flags = telegram_api::messages_deleteMessages::REVOKE_MASK;
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::messages_deleteMessages(flags, false /*ignored*/, MessageId::get_server_message_ids(message_ids)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto affected_messages = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteBusinessMessagesQuery: " << to_string(affected_messages);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteBusinessStoriesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteBusinessStoriesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, const vector<StoryId> &story_ids) {
-    auto user_id = td_->business_connection_manager_->get_business_connection_user_id(business_connection_id);
-    auto input_peer = td_->dialog_manager_->get_input_peer(DialogId(user_id), AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::stories_deleteStories(std::move(input_peer), StoryId::get_input_story_ids(story_ids)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_deleteStories>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for DeleteBusinessStoriesQuery: " << ptr;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBusinessProfileQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-  bool set_name_ = false;
-  bool set_about_ = false;
-  string first_name_;
-  string last_name_;
-
- public:
-  explicit UpdateBusinessProfileQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const BusinessConnectionId &business_connection_id, UserId user_id, bool set_name, const string &first_name,
-            const string &last_name, bool set_about, const string &about) {
-    user_id_ = user_id;
-    int32 flags = 0;
-    if (set_name) {
-      flags |= telegram_api::account_updateProfile::FIRST_NAME_MASK;
-      flags |= telegram_api::account_updateProfile::LAST_NAME_MASK;
-      set_name_ = true;
-      first_name_ = first_name;
-      last_name_ = last_name;
-    }
-    if (set_about) {
-      set_about_ = true;
-      flags |= telegram_api::account_updateProfile::ABOUT_MASK;
-    }
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::account_updateProfile(flags, first_name, last_name, about),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateProfile>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdateBusinessProfileQuery: " << to_string(result_ptr.ok());
-
-    if (set_name_ && user_id_.is_valid()) {
-      td_->user_manager_->on_update_user_name(user_id_, std::move(first_name_), std::move(last_name_));
-    }
-    if (set_about_ && user_id_.is_valid()) {
-      td_->user_manager_->invalidate_user_full(user_id_);
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBusinessUsernameQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-
- public:
-  explicit UpdateBusinessUsernameQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const BusinessConnectionId &business_connection_id, UserId user_id, const string &username) {
-    user_id_ = user_id;
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(), telegram_api::account_updateUsername(username),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdateBusinessUsernameQuery: " << to_string(result_ptr.ok());
-    td_->user_manager_->on_get_user(result_ptr.move_as_ok(), "UpdateBusinessUsernameQuery");
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBusinessGiftSettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-
- public:
-  explicit UpdateBusinessGiftSettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const BusinessConnectionId &business_connection_id, UserId user_id, const StarGiftSettings &settings) {
-    user_id_ = user_id;
-
-    int32 flags = 0;
-    auto gifts_settings = settings.get_disallowed_gifts().get_input_disallowed_gifts_settings();
-    if (gifts_settings != nullptr) {
-      flags |= telegram_api::globalPrivacySettings::DISALLOWED_GIFTS_MASK;
-    }
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::account_setGlobalPrivacySettings(telegram_api::make_object<telegram_api::globalPrivacySettings>(
-            flags, false, false, false, false, false, settings.get_display_gifts_button(), 0,
-            std::move(gifts_settings))),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_setGlobalPrivacySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdateBusinessGiftSettingsQuery: " << to_string(result_ptr.ok());
-    td_->user_manager_->invalidate_user_full(user_id_);
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBusinessStarsStatusQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::starAmount>> promise_;
-
- public:
-  explicit GetBusinessStarsStatusQuery(Promise<td_api::object_ptr<td_api::starAmount>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const BusinessConnectionId &business_connection_id) {
-    auto user_id = td_->business_connection_manager_->get_business_connection_user_id(business_connection_id);
-    auto input_peer = td_->dialog_manager_->get_input_peer(DialogId(user_id), AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(), telegram_api::payments_getStarsStatus(std::move(input_peer)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsStatus>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetBusinessStarsStatusQuery: " << to_string(result);
-
-    auto star_amount = StarAmount(std::move(result->balance_), true);
-    promise_.set_value(star_amount.get_star_amount_object());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class TransferBusinessStarsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit TransferBusinessStarsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, int64 payment_form_id, int64 star_count) {
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_sendStarsForm(
-            payment_form_id, telegram_api::make_object<telegram_api::inputInvoiceBusinessBotTransferStars>(
-                                 telegram_api::make_object<telegram_api::inputUserSelf>(), star_count)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_sendStarsForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for TransferBusinessStarsQuery: " << to_string(payment_result);
-    switch (payment_result->get_id()) {
-      case telegram_api::payments_paymentResult::ID: {
-        auto result = telegram_api::move_object_as<telegram_api::payments_paymentResult>(payment_result);
-        promise_.set_value(Unit());
-        break;
-      }
-      case telegram_api::payments_paymentVerificationNeeded::ID:
-        LOG(ERROR) << "Receive " << to_string(payment_result);
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "FORM_SUBMIT_DUPLICATE") {
-      LOG(ERROR) << "Receive FORM_SUBMIT_DUPLICATE";
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBusinessStarTransferPaymentFormQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BusinessConnectionId business_connection_id_;
-  int64 star_count_;
-
- public:
-  explicit GetBusinessStarTransferPaymentFormQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, int64 star_count) {
-    business_connection_id_ = business_connection_id;
-    star_count_ = star_count;
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_getPaymentForm(
-            0,
-            telegram_api::make_object<telegram_api::inputInvoiceBusinessBotTransferStars>(
-                telegram_api::make_object<telegram_api::inputUserSelf>(), star_count_),
-            nullptr),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPaymentForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_form_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetBusinessStarTransferPaymentFormQuery: " << to_string(payment_form_ptr);
-    switch (payment_form_ptr->get_id()) {
-      case telegram_api::payments_paymentForm::ID:
-        LOG(ERROR) << "Receive " << to_string(payment_form_ptr);
-        promise_.set_error(Status::Error(500, "Unsupported"));
-        break;
-      case telegram_api::payments_paymentFormStars::ID: {
-        auto payment_form = static_cast<const telegram_api::payments_paymentFormStars *>(payment_form_ptr.get());
-        if (payment_form->invoice_->prices_.size() != 1u ||
-            payment_form->invoice_->prices_[0]->amount_ != star_count_) {
-          return promise_.set_error(Status::Error(400, "Wrong transfer price specified"));
-        }
-        td_->create_handler<TransferBusinessStarsQuery>(std::move(promise_))
-            ->send(business_connection_id_, payment_form->form_id_, star_count_);
-        break;
-      }
-      case telegram_api::payments_paymentFormStarGift::ID: {
-        auto payment_form = static_cast<const telegram_api::payments_paymentFormStarGift *>(payment_form_ptr.get());
-        if (payment_form->invoice_->prices_.size() != 1u ||
-            payment_form->invoice_->prices_[0]->amount_ != star_count_) {
-          return promise_.set_error(Status::Error(400, "Wrong transfer price specified"));
-        }
-        td_->create_handler<TransferBusinessStarsQuery>(std::move(promise_))
-            ->send(business_connection_id_, payment_form->form_id_, star_count_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BusinessConnectionManager::UploadMediaCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->business_connection_manager(), &BusinessConnectionManager::on_upload_media, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->business_connection_manager(), &BusinessConnectionManager::on_upload_media_error,
-                       file_upload_id, std::move(error));
-  }
-};
-
-class BusinessConnectionManager::UploadThumbnailCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->business_connection_manager(), &BusinessConnectionManager::on_upload_thumbnail,
-                       file_upload_id, std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->business_connection_manager(), &BusinessConnectionManager::on_upload_thumbnail,
-                       file_upload_id, nullptr);
-  }
-};
-
-BusinessConnectionManager::BusinessConnectionManager(Td *td, ActorShared<> parent)
-    : td_(td), parent_(std::move(parent)) {
-  upload_media_callback_ = std::make_shared<UploadMediaCallback>();
-  upload_thumbnail_callback_ = std::make_shared<UploadThumbnailCallback>();
-}
-
-BusinessConnectionManager::~BusinessConnectionManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), business_connections_);
-}
-
-void BusinessConnectionManager::tear_down() {
-  parent_.reset();
-}
-
-Status BusinessConnectionManager::check_business_connection(const BusinessConnectionId &connection_id) const {
-  CHECK(td_->auth_manager_->is_bot());
-  auto connection = business_connections_.get_pointer(connection_id);
-  if (connection == nullptr) {
-    return Status::Error(400, "Business connection not found");
-  }
-  // no need to check connection->rights_ and connection->is_disabled_
-  return Status::OK();
-}
-
-Status BusinessConnectionManager::check_business_connection(const BusinessConnectionId &connection_id,
-                                                            DialogId dialog_id) const {
-  CHECK(td_->auth_manager_->is_bot());
-  auto connection = business_connections_.get_pointer(connection_id);
-  if (connection == nullptr) {
-    return Status::Error(400, "Business connection not found");
-  }
-  if (dialog_id.get_type() != DialogType::User) {
-    return Status::Error(400, "Chat must be a private chat");
-  }
-  if (dialog_id == DialogId(connection->user_id_)) {
-    return Status::Error(400, "Messages must not be sent to self");
-  }
-  // no need to check connection->rights_ and connection->is_disabled_
-  return Status::OK();
-}
-
-Status BusinessConnectionManager::check_business_message_id(MessageId message_id) const {
-  if (!message_id.is_valid()) {
-    return Status::Error(400, "Invalid message identifier specified");
-  }
-  if (!message_id.is_server()) {
-    return Status::Error(400, "Wrong message identifier specified");
-  }
-  return Status::OK();
-}
-
-Status BusinessConnectionManager::check_business_story_id(StoryId story_id) const {
-  if (!story_id.is_valid()) {
-    return Status::Error(400, "Invalid story identifier specified");
-  }
-  if (!story_id.is_server()) {
-    return Status::Error(400, "Wrong story identifier specified");
-  }
-  return Status::OK();
-}
-
-UserId BusinessConnectionManager::get_business_connection_user_id(const BusinessConnectionId &connection_id) const {
-  auto connection = business_connections_.get_pointer(connection_id);
-  CHECK(connection != nullptr);
-  return connection->user_id_;
-}
-
-DcId BusinessConnectionManager::get_business_connection_dc_id(const BusinessConnectionId &connection_id) const {
-  if (connection_id.is_empty()) {
-    return DcId::main();
-  }
-  auto connection = business_connections_.get_pointer(connection_id);
-  CHECK(connection != nullptr);
-  return connection->dc_id_;
-}
-
-void BusinessConnectionManager::on_update_bot_business_connect(
-    telegram_api::object_ptr<telegram_api::botBusinessConnection> &&connection) {
-  CHECK(connection != nullptr);
-  auto business_connection = make_unique<BusinessConnection>(connection);
-  if (!business_connection->is_valid()) {
-    LOG(ERROR) << "Receive invalid " << to_string(connection);
-    return;
-  }
-  if (!td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Receive " << to_string(connection);
-    return;
-  }
-
-  auto &stored_connection = business_connections_[business_connection->connection_id_];
-  stored_connection = std::move(business_connection);
-  send_closure(G()->td(), &Td::send_update, get_update_business_connection(stored_connection.get()));
-}
-
-void BusinessConnectionManager::on_update_bot_new_business_message(
-    const BusinessConnectionId &connection_id, telegram_api::object_ptr<telegram_api::Message> &&message,
-    telegram_api::object_ptr<telegram_api::Message> &&reply_to_message) {
-  if (!td_->auth_manager_->is_bot() || !connection_id.is_valid()) {
-    LOG(ERROR) << "Receive " << to_string(message);
-    return;
-  }
-  auto message_object =
-      td_->messages_manager_->get_business_message_object(std::move(message), std::move(reply_to_message));
-  if (message_object == nullptr) {
-    return;
-  }
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateNewBusinessMessage>(connection_id.get(), std::move(message_object)));
-}
-
-void BusinessConnectionManager::on_update_bot_edit_business_message(
-    const BusinessConnectionId &connection_id, telegram_api::object_ptr<telegram_api::Message> &&message,
-    telegram_api::object_ptr<telegram_api::Message> &&reply_to_message) {
-  if (!td_->auth_manager_->is_bot() || !connection_id.is_valid()) {
-    LOG(ERROR) << "Receive " << to_string(message);
-    return;
-  }
-  auto message_object =
-      td_->messages_manager_->get_business_message_object(std::move(message), std::move(reply_to_message));
-  if (message_object == nullptr) {
-    return;
-  }
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateBusinessMessageEdited>(connection_id.get(), std::move(message_object)));
-}
-
-void BusinessConnectionManager::on_update_bot_delete_business_messages(const BusinessConnectionId &connection_id,
-                                                                       DialogId dialog_id, vector<int32> &&messages) {
-  if (!td_->auth_manager_->is_bot() || !connection_id.is_valid() || dialog_id.get_type() != DialogType::User) {
-    LOG(ERROR) << "Receive deletion of messages " << messages << " in " << dialog_id;
-    return;
-  }
-  vector<int64> message_ids;
-  for (auto message : messages) {
-    message_ids.push_back(MessageId(ServerMessageId(message)).get());
-  }
-  td_->dialog_manager_->force_create_dialog(dialog_id, "on_update_bot_delete_business_messages", true);
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateBusinessMessagesDeleted>(
-          connection_id.get(), td_->dialog_manager_->get_chat_id_object(dialog_id, "updateBusinessMessageDeleted"),
-          std::move(message_ids)));
-}
-
-void BusinessConnectionManager::get_business_connection(
-    const BusinessConnectionId &connection_id, Promise<td_api::object_ptr<td_api::businessConnection>> &&promise) {
-  auto connection = business_connections_.get_pointer(connection_id);
-  if (connection != nullptr) {
-    return promise.set_value(connection->get_business_connection_object(td_));
-  }
-
-  if (connection_id.is_empty()) {
-    return promise.set_error(Status::Error(400, "Connection iedntifier must be non-empty"));
-  }
-
-  auto &queries = get_business_connection_queries_[connection_id];
-  queries.push_back(std::move(promise));
-  if (queries.size() == 1u) {
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), connection_id](Result<telegram_api::object_ptr<telegram_api::Updates>> r_updates) {
-          send_closure(actor_id, &BusinessConnectionManager::on_get_business_connection, connection_id,
-                       std::move(r_updates));
-        });
-    td_->create_handler<GetBotBusinessConnectionQuery>(std::move(query_promise))->send(connection_id);
-  }
-}
-
-void BusinessConnectionManager::on_get_business_connection(
-    const BusinessConnectionId &connection_id, Result<telegram_api::object_ptr<telegram_api::Updates>> r_updates) {
-  G()->ignore_result_if_closing(r_updates);
-  auto queries_it = get_business_connection_queries_.find(connection_id);
-  CHECK(queries_it != get_business_connection_queries_.end());
-  CHECK(!queries_it->second.empty());
-  auto promises = std::move(queries_it->second);
-  get_business_connection_queries_.erase(queries_it);
-  if (r_updates.is_error()) {
-    return fail_promises(promises, r_updates.move_as_error());
-  }
-  auto connection = business_connections_.get_pointer(connection_id);
-  if (connection != nullptr) {
-    for (auto &promise : promises) {
-      promise.set_value(connection->get_business_connection_object(td_));
-    }
-    return;
-  }
-
-  auto updates_ptr = r_updates.move_as_ok();
-  if (updates_ptr->get_id() != telegram_api::updates::ID) {
-    LOG(ERROR) << "Receive " << to_string(updates_ptr);
-    return fail_promises(promises, Status::Error(500, "Receive invalid business connection info"));
-  }
-  auto updates = telegram_api::move_object_as<telegram_api::updates>(updates_ptr);
-  if (updates->updates_.size() != 1 || updates->updates_[0]->get_id() != telegram_api::updateBotBusinessConnect::ID) {
-    if (updates->updates_.empty()) {
-      return fail_promises(promises, Status::Error(400, "Business connection not found"));
-    }
-    LOG(ERROR) << "Receive " << to_string(updates);
-    return fail_promises(promises, Status::Error(500, "Receive invalid business connection info"));
-  }
-  auto update = telegram_api::move_object_as<telegram_api::updateBotBusinessConnect>(updates->updates_[0]);
-
-  td_->user_manager_->on_get_users(std::move(updates->users_), "on_get_business_connection");
-  td_->chat_manager_->on_get_chats(std::move(updates->chats_), "on_get_business_connection");
-
-  auto business_connection = make_unique<BusinessConnection>(update->connection_);
-  if (!business_connection->is_valid() || connection_id != business_connection->connection_id_) {
-    LOG(ERROR) << "Receive for " << connection_id << ": " << to_string(update->connection_);
-    return fail_promises(promises, Status::Error(500, "Receive invalid business connection info"));
-  }
-
-  auto &stored_connection = business_connections_[connection_id];
-  CHECK(stored_connection == nullptr);
-  stored_connection = std::move(business_connection);
-  for (auto &promise : promises) {
-    promise.set_value(stored_connection->get_business_connection_object(td_));
-  }
-}
-
-MessageInputReplyTo BusinessConnectionManager::create_business_message_input_reply_to(
-    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to) {
-  if (reply_to == nullptr) {
-    return {};
-  }
-  switch (reply_to->get_id()) {
-    case td_api::inputMessageReplyToStory::ID:
-      return {};
-    case td_api::inputMessageReplyToMessage::ID: {
-      auto reply_to_message = td_api::move_object_as<td_api::inputMessageReplyToMessage>(reply_to);
-      auto message_id = MessageId(reply_to_message->message_id_);
-      if (!message_id.is_valid() || !message_id.is_server()) {
-        return {};
-      }
-      return MessageInputReplyTo{message_id, DialogId(), MessageQuote(td_, std::move(reply_to_message->quote_))};
-    }
-    case td_api::inputMessageReplyToExternalMessage::ID:
-      return {};
-    default:
-      UNREACHABLE();
-      return {};
-  }
-}
-
-Result<InputMessageContent> BusinessConnectionManager::process_input_message_content(
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  if (input_message_content == nullptr) {
-    return Status::Error(400, "Can't send message without content");
-  }
-  auto message_content_id = input_message_content->get_id();
-  if (message_content_id == td_api::inputMessageForwarded::ID) {
-    return Status::Error(400, "Can't forward messages as business");
-  }
-  return get_input_message_content(td_->dialog_manager_->get_my_dialog_id(), std::move(input_message_content), td_,
-                                   true);
-}
-
-unique_ptr<BusinessConnectionManager::PendingMessage> BusinessConnectionManager::create_business_message_to_send(
-    BusinessConnectionId business_connection_id, DialogId dialog_id, MessageInputReplyTo &&input_reply_to,
-    bool disable_notification, bool protect_content, MessageEffectId effect_id, unique_ptr<ReplyMarkup> &&reply_markup,
-    InputMessageContent &&input_content) const {
-  auto content = dup_message_content(td_, td_->dialog_manager_->get_my_dialog_id(), input_content.content.get(),
-                                     MessageContentDupType::Send, MessageCopyOptions());
-  auto message = make_unique<PendingMessage>();
-  message->business_connection_id_ = business_connection_id;
-  message->dialog_id_ = dialog_id;
-  message->input_reply_to_ = std::move(input_reply_to);
-  message->noforwards_ = protect_content;
-  message->effect_id_ = effect_id;
-  message->content_ = std::move(content);
-  message->reply_markup_ = std::move(reply_markup);
-  message->disable_notification_ = disable_notification;
-  message->invert_media_ = input_content.invert_media;
-  message->disable_web_page_preview_ = input_content.disable_web_page_preview;
-  message->ttl_ = input_content.ttl;
-  message->send_emoji_ = std::move(input_content.emoji);
-  message->random_id_ = Random::secure_int64();
-  message->init_file_upload_ids(td_);
-  return message;
-}
-
-void BusinessConnectionManager::send_message(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                             td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to,
-                                             bool disable_notification, bool protect_content, MessageEffectId effect_id,
-                                             td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                             td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                             Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-  TRY_RESULT_PROMISE(promise, input_content, process_input_message_content(std::move(input_message_content)));
-  auto input_reply_to = create_business_message_input_reply_to(std::move(reply_to));
-  TRY_RESULT_PROMISE(promise, message_reply_markup,
-                     get_reply_markup(std::move(reply_markup), DialogType::User, true, false));
-
-  auto message = create_business_message_to_send(std::move(business_connection_id), dialog_id,
-                                                 std::move(input_reply_to), disable_notification, protect_content,
-                                                 effect_id, std::move(message_reply_markup), std::move(input_content));
-
-  do_send_message(std::move(message), std::move(promise));
-}
-
-void BusinessConnectionManager::do_send_message(unique_ptr<PendingMessage> &&message,
-                                                Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  LOG(INFO) << "Send business message to " << message->dialog_id_;
-
-  const auto *content = message->content_.get();
-  CHECK(content != nullptr);
-  auto content_type = content->get_type();
-  if (content_type == MessageContentType::Text) {
-    auto input_media = get_message_content_input_media_web_page(td_, content);
-    if (input_media == nullptr) {
-      td_->create_handler<SendBusinessMessageQuery>(std::move(promise))->send(std::move(message));
-    } else {
-      td_->create_handler<SendBusinessMediaQuery>(std::move(promise))->send(std::move(message), std::move(input_media));
-    }
-    return;
-  }
-
-  auto covers = get_message_content_need_to_upload_covers(td_, content);
-  if (!covers.empty()) {
-    auto business_connection_id = message->business_connection_id_;
-    auto dialog_id = message->dialog_id_;
-    return td_->message_query_manager_->upload_message_covers(
-        business_connection_id, dialog_id, std::move(covers),
-        PromiseCreator::lambda([actor_id = actor_id(this), message = std::move(message),
-                                promise = std::move(promise)](Result<Unit> result) mutable {
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-          send_closure(actor_id, &BusinessConnectionManager::do_send_message, std::move(message), std::move(promise));
-        }));
-  }
-
-  if (content_type == MessageContentType::PaidMedia) {
-    auto message_contents = get_individual_message_contents(content);
-    auto request_id = ++current_media_group_send_request_id_;
-    auto &request = media_group_send_requests_[request_id];
-    request.upload_results_.resize(message_contents.size());
-    request.paid_media_promise_ = std::move(promise);
-    request.paid_media_message_ = std::move(message);
-
-    for (size_t media_pos = 0; media_pos < message_contents.size(); media_pos++) {
-      auto fake_message = make_unique<PendingMessage>();
-      fake_message->dialog_id_ = request.paid_media_message_->dialog_id_;
-      fake_message->business_connection_id_ = request.paid_media_message_->business_connection_id_;
-      fake_message->content_ = std::move(message_contents[media_pos]);
-      fake_message->init_file_upload_ids(td_);
-      auto input_media = get_message_content_input_media(fake_message->content_.get(), td_, MessageSelfDestructType(),
-                                                         string(), td_->auth_manager_->is_bot());
-      if (input_media != nullptr) {
-        auto file_id = fake_message->file_upload_id_.get_file_id();
-        CHECK(file_id.is_valid());
-        FileView file_view = td_->file_manager_->get_file_view(file_id);
-        if (file_view.has_full_remote_location()) {
-          UploadMediaResult result;
-          result.message_ = std::move(fake_message);
-          result.input_media_ = std::move(input_media);
-          on_upload_message_paid_media(request_id, media_pos, std::move(result));
-          continue;
-        }
-      }
-      upload_media(std::move(fake_message), PromiseCreator::lambda([actor_id = actor_id(this), request_id, media_pos](
-                                                                       Result<UploadMediaResult> &&result) mutable {
-                     send_closure(actor_id, &BusinessConnectionManager::on_upload_message_paid_media, request_id,
-                                  media_pos, std::move(result));
-                   }));
-    }
-    return;
-  }
-
-  auto input_media =
-      get_message_content_input_media(content, td_, message->ttl_, message->send_emoji_, td_->auth_manager_->is_bot());
-  if (input_media != nullptr) {
-    td_->create_handler<SendBusinessMediaQuery>(std::move(promise))->send(std::move(message), std::move(input_media));
-    return;
-  }
-  if (content_type == MessageContentType::Game || content_type == MessageContentType::Poll ||
-      content_type == MessageContentType::Story) {
-    return promise.set_error(Status::Error(400, "Message has no file"));
-  }
-  upload_media(std::move(message), PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                                              Result<UploadMediaResult> &&result) mutable {
-                 if (result.is_error()) {
-                   return promise.set_error(result.move_as_error());
-                 }
-                 auto message_input_media = result.move_as_ok();
-                 send_closure(actor_id, &BusinessConnectionManager::complete_send_media,
-                              std::move(message_input_media.message_), std::move(message_input_media.input_media_),
-                              std::move(promise));
-               }));
-}
-
-void BusinessConnectionManager::process_sent_business_message(
-    telegram_api::object_ptr<telegram_api::Updates> &&updates_ptr,
-    Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  if (updates_ptr->get_id() != telegram_api::updates::ID) {
-    LOG(ERROR) << "Receive " << to_string(updates_ptr);
-    return promise.set_error(Status::Error(500, "Receive invalid business connection messages"));
-  }
-  auto updates = telegram_api::move_object_as<telegram_api::updates>(updates_ptr);
-  if (updates->updates_.size() != 1 ||
-      updates->updates_[0]->get_id() != telegram_api::updateBotNewBusinessMessage::ID) {
-    LOG(ERROR) << "Receive " << to_string(updates);
-    return promise.set_error(Status::Error(500, "Receive invalid business connection messages"));
-  }
-  auto update = telegram_api::move_object_as<telegram_api::updateBotNewBusinessMessage>(updates->updates_[0]);
-
-  td_->user_manager_->on_get_users(std::move(updates->users_), "SendBusinessMediaQuery");
-  td_->chat_manager_->on_get_chats(std::move(updates->chats_), "SendBusinessMediaQuery");
-
-  promise.set_value(td_->messages_manager_->get_business_message_object(std::move(update->message_),
-                                                                        std::move(update->reply_to_message_)));
-}
-
-void BusinessConnectionManager::upload_media(unique_ptr<PendingMessage> &&message, Promise<UploadMediaResult> &&promise,
-                                             vector<int> bad_parts) {
-  auto file_upload_id = message->file_upload_id_;
-  auto file_id = file_upload_id.get_file_id();
-  CHECK(file_id.is_valid());
-  FileView file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return promise.set_error(Status::Error(400, "Can't use encrypted file"));
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && main_remote_location->is_web()) {
-    return promise.set_error(Status::Error(400, "Can't use a web file"));
-  }
-
-  BeingUploadedMedia media;
-  media.message_ = std::move(message);
-  media.promise_ = std::move(promise);
-
-  if (!file_view.has_full_remote_location() && file_view.has_url()) {
-    return do_upload_media(std::move(media), nullptr);
-  }
-
-  LOG(INFO) << "Ask to upload " << file_upload_id << " with bad parts " << bad_parts;
-  CHECK(file_upload_id.is_valid());
-  bool is_inserted = being_uploaded_files_.emplace(file_upload_id, std::move(media)).second;
-  CHECK(is_inserted);
-  // need to call resume_upload synchronously to make upload process consistent with being_uploaded_files_
-  // and to send is_uploading_active == true in the updates
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_media_callback_, 1, 0);
-}
-
-void BusinessConnectionManager::complete_send_media(unique_ptr<PendingMessage> &&message,
-                                                    telegram_api::object_ptr<telegram_api::InputMedia> &&input_media,
-                                                    Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(message != nullptr);
-  CHECK(input_media != nullptr);
-  td_->create_handler<SendBusinessMediaQuery>(std::move(promise))->send(std::move(message), std::move(input_media));
-}
-
-void BusinessConnectionManager::on_upload_media(FileUploadId file_upload_id,
-                                                telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Business media " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto being_uploaded_media = std::move(it->second);
-  being_uploaded_files_.erase(it);
-  CHECK(file_upload_id == being_uploaded_media.message_->file_upload_id_);
-
-  being_uploaded_media.input_file_ = std::move(input_file);
-  auto thumbnail_file_upload_id = being_uploaded_media.message_->thumbnail_file_upload_id_;
-  if (being_uploaded_media.input_file_ != nullptr && thumbnail_file_upload_id.is_valid()) {
-    // TODO: download thumbnail if needed (like in secret chats)
-    LOG(INFO) << "Ask to upload thumbnail " << thumbnail_file_upload_id;
-    bool is_inserted =
-        being_uploaded_thumbnails_.emplace(thumbnail_file_upload_id, std::move(being_uploaded_media)).second;
-    CHECK(is_inserted);
-    td_->file_manager_->upload(thumbnail_file_upload_id, upload_thumbnail_callback_, 1, 0);
-  } else {
-    do_upload_media(std::move(being_uploaded_media), nullptr);
-  }
-}
-
-void BusinessConnectionManager::on_upload_media_error(FileUploadId file_upload_id, Status status) {
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto being_uploaded_media = std::move(it->second);
-  being_uploaded_files_.erase(it);
-
-  being_uploaded_media.promise_.set_error(std::move(status));
-}
-
-void BusinessConnectionManager::on_upload_thumbnail(
-    FileUploadId thumbnail_file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> thumbnail_input_file) {
-  LOG(INFO) << "Thumbnail " << thumbnail_file_upload_id << " has been uploaded as " << to_string(thumbnail_input_file);
-
-  auto it = being_uploaded_thumbnails_.find(thumbnail_file_upload_id);
-  CHECK(it != being_uploaded_thumbnails_.end());
-  auto being_uploaded_media = std::move(it->second);
-  being_uploaded_thumbnails_.erase(it);
-  CHECK(thumbnail_file_upload_id == being_uploaded_media.message_->thumbnail_file_upload_id_);
-
-  if (thumbnail_input_file == nullptr) {
-    delete_message_content_thumbnail(being_uploaded_media.message_->content_.get(), td_);
-    being_uploaded_media.message_->thumbnail_file_upload_id_ = FileUploadId();
-  }
-
-  do_upload_media(std::move(being_uploaded_media), std::move(thumbnail_input_file));
-}
-
-void BusinessConnectionManager::do_upload_media(BeingUploadedMedia &&being_uploaded_media,
-                                                telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) {
-  auto file_upload_id = being_uploaded_media.message_->file_upload_id_;
-  auto thumbnail_file_upload_id = being_uploaded_media.message_->thumbnail_file_upload_id_;
-  auto input_file = std::move(being_uploaded_media.input_file_);
-  bool have_input_file = input_file != nullptr;
-  bool have_input_thumbnail = input_thumbnail != nullptr;
-  LOG(INFO) << "Do upload media " << file_upload_id << " with thumbnail " << thumbnail_file_upload_id
-            << ", have_input_file = " << have_input_file << ", have_input_thumbnail = " << have_input_thumbnail;
-
-  const auto *message = being_uploaded_media.message_.get();
-  auto input_media = get_message_content_input_media(
-      message->content_.get(), -1, td_, std::move(input_file), std::move(input_thumbnail), file_upload_id,
-      thumbnail_file_upload_id, message->ttl_, message->send_emoji_, true);
-  CHECK(input_media != nullptr);
-  if (is_uploaded_input_media(input_media)) {
-    UploadMediaResult result;
-    result.message_ = std::move(being_uploaded_media.message_);
-    result.input_media_ = std::move(input_media);
-    return being_uploaded_media.promise_.set_value(std::move(result));
-  } else {
-    td_->create_handler<UploadBusinessMediaQuery>(std::move(being_uploaded_media.promise_))
-        ->send(std::move(being_uploaded_media.message_), std::move(input_media));
-  }
-}
-
-void BusinessConnectionManager::complete_upload_media(unique_ptr<PendingMessage> &&message,
-                                                      telegram_api::object_ptr<telegram_api::MessageMedia> &&media,
-                                                      Promise<UploadMediaResult> &&promise) {
-  auto new_content =
-      get_uploaded_message_content(td_, message->content_.get(), -1, std::move(media),
-                                   td_->dialog_manager_->get_my_dialog_id(), G()->unix_time(), "complete_upload_media");
-  bool is_content_changed = false;
-  bool need_update = false;
-
-  unique_ptr<MessageContent> &old_content = message->content_;
-  auto old_content_type = old_content->get_type();
-  auto new_content_type = new_content->get_type();
-
-  auto old_file_id = message->file_upload_id_.get_file_id();
-  if (old_content_type != new_content_type) {
-    need_update = true;
-
-    td_->file_manager_->try_merge_documents(get_message_content_any_file_id(new_content.get()), old_file_id);
-  } else {
-    merge_message_contents(td_, old_content.get(), new_content.get(), false, DialogId(), true, is_content_changed,
-                           need_update);
-    compare_message_contents(td_, old_content.get(), new_content.get(), is_content_changed, need_update);
-  }
-  send_closure_later(G()->file_manager(), &FileManager::cancel_upload, message->file_upload_id_);
-  message->file_upload_id_ = {};
-
-  if (is_content_changed || need_update) {
-    old_content = std::move(new_content);
-    update_message_content_file_id_remote(old_content.get(), old_file_id);
-  } else {
-    update_message_content_file_id_remote(old_content.get(), get_message_content_any_file_id(new_content.get()));
-  }
-
-  auto input_media =
-      get_message_content_input_media(message->content_.get(), td_, message->ttl_, message->send_emoji_, true);
-  if (input_media == nullptr) {
-    return promise.set_error(Status::Error(400, "Failed to upload file"));
-  }
-  UploadMediaResult result;
-  result.message_ = std::move(message);
-  result.input_media_ = std::move(input_media);
-  promise.set_value(std::move(result));
-}
-
-void BusinessConnectionManager::send_message_album(
-    BusinessConnectionId business_connection_id, DialogId dialog_id,
-    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, bool disable_notification, bool protect_content,
-    MessageEffectId effect_id, vector<td_api::object_ptr<td_api::InputMessageContent>> &&input_message_contents,
-    Promise<td_api::object_ptr<td_api::businessMessages>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-
-  vector<InputMessageContent> message_contents;
-  for (auto &input_message_content : input_message_contents) {
-    TRY_RESULT_PROMISE(promise, message_content, process_input_message_content(std::move(input_message_content)));
-    message_contents.push_back(std::move(message_content));
-  }
-  TRY_STATUS_PROMISE(promise, check_message_group_message_contents(message_contents));
-
-  auto input_reply_to = create_business_message_input_reply_to(std::move(reply_to));
-
-  auto request_id = ++current_media_group_send_request_id_;
-  auto &request = media_group_send_requests_[request_id];
-  request.upload_results_.resize(message_contents.size());
-  request.promise_ = std::move(promise);
-
-  do_send_message_album(request_id, business_connection_id, dialog_id, std::move(input_reply_to), disable_notification,
-                        protect_content, effect_id, std::move(message_contents), std::move(promise));
-}
-
-void BusinessConnectionManager::do_send_message_album(int64 request_id, BusinessConnectionId business_connection_id,
-                                                      DialogId dialog_id, MessageInputReplyTo &&input_reply_to,
-                                                      bool disable_notification, bool protect_content,
-                                                      MessageEffectId effect_id,
-                                                      vector<InputMessageContent> &&message_contents,
-                                                      Promise<td_api::object_ptr<td_api::businessMessages>> &&promise) {
-  vector<const Photo *> covers;
-  for (auto &content : message_contents) {
-    append(covers, get_message_content_need_to_upload_covers(td_, content.content.get()));
-  }
-  if (!covers.empty()) {
-    return td_->message_query_manager_->upload_message_covers(
-        business_connection_id, dialog_id, std::move(covers),
-        PromiseCreator::lambda([actor_id = actor_id(this), request_id, business_connection_id, dialog_id,
-                                input_reply_to = std::move(input_reply_to), disable_notification, protect_content,
-                                effect_id, message_contents = std::move(message_contents),
-                                promise = std::move(promise)](Result<Unit> result) mutable {
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-          send_closure(actor_id, &BusinessConnectionManager::do_send_message_album, request_id, business_connection_id,
-                       dialog_id, std::move(input_reply_to), disable_notification, protect_content, effect_id,
-                       std::move(message_contents), std::move(promise));
-        }));
-  }
-
-  for (size_t media_pos = 0; media_pos < message_contents.size(); media_pos++) {
-    auto &message_content = message_contents[media_pos];
-    auto message =
-        create_business_message_to_send(business_connection_id, dialog_id, input_reply_to.clone(), disable_notification,
-                                        protect_content, effect_id, nullptr, std::move(message_content));
-    auto input_media = get_message_content_input_media(message->content_.get(), td_, message->ttl_,
-                                                       message->send_emoji_, td_->auth_manager_->is_bot());
-    if (input_media != nullptr) {
-      auto file_id = message->file_upload_id_.get_file_id();
-      CHECK(file_id.is_valid());
-      FileView file_view = td_->file_manager_->get_file_view(file_id);
-      if (file_view.has_full_remote_location()) {
-        UploadMediaResult result;
-        result.message_ = std::move(message);
-        result.input_media_ = std::move(input_media);
-        on_upload_message_album_media(request_id, media_pos, std::move(result));
-        continue;
-      }
-    }
-    upload_media(std::move(message), PromiseCreator::lambda([actor_id = actor_id(this), request_id,
-                                                             media_pos](Result<UploadMediaResult> &&result) mutable {
-                   send_closure(actor_id, &BusinessConnectionManager::on_upload_message_album_media, request_id,
-                                media_pos, std::move(result));
-                 }));
-  }
-}
-
-void BusinessConnectionManager::on_upload_message_album_media(int64 request_id, size_t media_pos,
-                                                              Result<UploadMediaResult> &&result) {
-  G()->ignore_result_if_closing(result);
-  auto it = media_group_send_requests_.find(request_id);
-  CHECK(it != media_group_send_requests_.end());
-  auto &request = it->second;
-
-  request.upload_results_[media_pos] = std::move(result);
-  request.finished_count_++;
-
-  LOG(INFO) << "Receive uploaded media " << media_pos << " for request " << request_id;
-  if (request.finished_count_ != request.upload_results_.size()) {
-    return;
-  }
-
-  auto upload_results = std::move(request.upload_results_);
-  auto promise = std::move(request.promise_);
-  CHECK(request.paid_media_message_ == nullptr);
-  media_group_send_requests_.erase(it);
-
-  for (auto &r_upload_result : upload_results) {
-    if (r_upload_result.is_error()) {
-      return promise.set_error(r_upload_result.move_as_error());
-    }
-  }
-  vector<unique_ptr<PendingMessage>> messages;
-  vector<telegram_api::object_ptr<telegram_api::inputSingleMedia>> input_single_media;
-  for (auto &r_upload_result : upload_results) {
-    auto upload_result = r_upload_result.move_as_ok();
-    auto message = std::move(upload_result.message_);
-    int32 flags = 0;
-    const FormattedText *caption = get_message_content_text(message->content_.get());
-    auto entities = get_input_message_entities(td_->user_manager_.get(), caption, "on_upload_message_album_media");
-    if (!entities.empty()) {
-      flags |= telegram_api::inputSingleMedia::ENTITIES_MASK;
-    }
-    input_single_media.push_back(telegram_api::make_object<telegram_api::inputSingleMedia>(
-        flags, std::move(upload_result.input_media_), message->random_id_,
-        caption == nullptr ? string() : caption->text, std::move(entities)));
-    messages.push_back(std::move(message));
-  }
-
-  td_->create_handler<SendBusinessMultiMediaQuery>(std::move(promise))
-      ->send(std::move(messages), std::move(input_single_media));
-}
-
-void BusinessConnectionManager::process_sent_business_message_album(
-    telegram_api::object_ptr<telegram_api::Updates> &&updates_ptr,
-    Promise<td_api::object_ptr<td_api::businessMessages>> &&promise) {
-  if (updates_ptr->get_id() != telegram_api::updates::ID) {
-    LOG(ERROR) << "Receive " << to_string(updates_ptr);
-    return promise.set_error(Status::Error(500, "Receive invalid business connection messages"));
-  }
-  auto updates = telegram_api::move_object_as<telegram_api::updates>(updates_ptr);
-  for (auto &update : updates->updates_) {
-    if (update->get_id() != telegram_api::updateBotNewBusinessMessage::ID) {
-      LOG(ERROR) << "Receive " << to_string(updates);
-      return promise.set_error(Status::Error(500, "Receive invalid business connection messages"));
-    }
-  }
-  td_->user_manager_->on_get_users(std::move(updates->users_), "process_sent_business_message_album");
-  td_->chat_manager_->on_get_chats(std::move(updates->chats_), "process_sent_business_message_album");
-
-  auto messages = td_api::make_object<td_api::businessMessages>();
-  for (auto &update_ptr : updates->updates_) {
-    auto update = telegram_api::move_object_as<telegram_api::updateBotNewBusinessMessage>(update_ptr);
-    messages->messages_.push_back(td_->messages_manager_->get_business_message_object(
-        std::move(update->message_), std::move(update->reply_to_message_)));
-  }
-  promise.set_value(std::move(messages));
-}
-
-void BusinessConnectionManager::on_upload_message_paid_media(int64 request_id, size_t media_pos,
-                                                             Result<UploadMediaResult> &&result) {
-  G()->ignore_result_if_closing(result);
-  auto it = media_group_send_requests_.find(request_id);
-  CHECK(it != media_group_send_requests_.end());
-  auto &request = it->second;
-
-  request.upload_results_[media_pos] = std::move(result);
-  request.finished_count_++;
-
-  LOG(INFO) << "Receive uploaded paid media " << media_pos << " for request " << request_id;
-  if (request.finished_count_ != request.upload_results_.size()) {
-    return;
-  }
-
-  auto upload_results = std::move(request.upload_results_);
-  auto message = std::move(request.paid_media_message_);
-  auto promise = std::move(request.paid_media_promise_);
-  media_group_send_requests_.erase(it);
-
-  CHECK(message != nullptr);
-  for (auto &r_upload_result : upload_results) {
-    if (r_upload_result.is_error()) {
-      return promise.set_error(r_upload_result.move_as_error());
-    }
-  }
-  vector<telegram_api::object_ptr<telegram_api::InputMedia>> input_media;
-  for (auto &r_upload_result : upload_results) {
-    auto upload_result = r_upload_result.move_as_ok();
-    input_media.push_back(std::move(upload_result.input_media_));
-  }
-  auto payload = get_message_content_payload(message->content_.get());
-  int32 flags = 0;
-  if (!payload.empty()) {
-    flags |= telegram_api::inputMediaPaidMedia::PAYLOAD_MASK;
-  }
-  auto input_media_paid_media = telegram_api::make_object<telegram_api::inputMediaPaidMedia>(
-      flags, get_message_content_star_count(message->content_.get()), std::move(input_media), payload);
-  td_->create_handler<SendBusinessMediaQuery>(std::move(promise))
-      ->send(std::move(message), std::move(input_media_paid_media));
-}
-
-void BusinessConnectionManager::on_fail_send_message(unique_ptr<PendingMessage> &&message, const Status &error) {
-  int32 error_code = error.code();
-  string error_message = error.message().str();
-  MessagesManager::process_send_message_fail_error(error_code, error_message, message->dialog_id_,
-                                                   td_->auth_manager_->is_bot(), message->content_->get_type());
-  if (error_code != 403 && !(error_code == 500 && G()->close_flag())) {
-    LOG(WARNING) << "Failed to send business in " << message->dialog_id_ << " with the error " << error;
-  }
-}
-
-void BusinessConnectionManager::edit_business_message_text(
-    BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-    td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-    Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-  TRY_STATUS_PROMISE(promise, check_business_message_id(message_id));
-
-  if (input_message_content == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't edit message without new content"));
-  }
-  int32 new_message_content_type = input_message_content->get_id();
-  if (new_message_content_type != td_api::inputMessageText::ID) {
-    return promise.set_error(Status::Error(400, "Input message content type must be InputMessageText"));
-  }
-
-  TRY_RESULT_PROMISE(
-      promise, input_message_text,
-      process_input_message_text(td_, DialogId(), std::move(input_message_content), td_->auth_manager_->is_bot()));
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-
-  auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), new_reply_markup);
-  int32 flags = 0;
-  if (input_message_text.disable_web_page_preview) {
-    flags |= telegram_api::messages_editMessage::NO_WEBPAGE_MASK;
-  }
-  td_->create_handler<EditBusinessMessageQuery>(std::move(promise))
-      ->send(flags, business_connection_id, dialog_id, message_id, input_message_text.text.text,
-             get_input_message_entities(td_->user_manager_.get(), input_message_text.text.entities,
-                                        "edit_business_message_text"),
-             input_message_text.get_input_media_web_page(), input_message_text.show_above_text,
-             std::move(input_reply_markup));
-}
-
-void BusinessConnectionManager::edit_business_message_live_location(
-    BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-    td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup, td_api::object_ptr<td_api::location> &&input_location,
-    int32 live_period, int32 heading, int32 proximity_alert_radius,
-    Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-  TRY_STATUS_PROMISE(promise, check_business_message_id(message_id));
-
-  Location location(input_location);
-  if (location.empty() && input_location != nullptr) {
-    return promise.set_error(Status::Error(400, "Invalid location specified"));
-  }
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-  auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), new_reply_markup);
-
-  int32 flags = 0;
-  if (live_period != 0) {
-    flags |= telegram_api::inputMediaGeoLive::PERIOD_MASK;
-  }
-  if (heading != 0) {
-    flags |= telegram_api::inputMediaGeoLive::HEADING_MASK;
-  }
-  flags |= telegram_api::inputMediaGeoLive::PROXIMITY_NOTIFICATION_RADIUS_MASK;
-  auto input_media = telegram_api::make_object<telegram_api::inputMediaGeoLive>(
-      flags, location.empty(), location.get_input_geo_point(), heading, live_period, proximity_alert_radius);
-  td_->create_handler<EditBusinessMessageQuery>(std::move(promise))
-      ->send(0, business_connection_id, dialog_id, message_id, string(),
-             vector<telegram_api::object_ptr<telegram_api::MessageEntity>>(), std::move(input_media), false /*ignored*/,
-             std::move(input_reply_markup));
-}
-
-void BusinessConnectionManager::edit_business_message_media(
-    BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-    td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-    Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-  TRY_STATUS_PROMISE(promise, check_business_message_id(message_id));
-
-  if (input_message_content == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't edit message without new content"));
-  }
-  int32 new_message_content_type = input_message_content->get_id();
-  if (new_message_content_type != td_api::inputMessageAnimation::ID &&
-      new_message_content_type != td_api::inputMessageAudio::ID &&
-      new_message_content_type != td_api::inputMessageDocument::ID &&
-      new_message_content_type != td_api::inputMessagePhoto::ID &&
-      new_message_content_type != td_api::inputMessageVideo::ID) {
-    return promise.set_error(Status::Error(400, "Unsupported input message content type"));
-  }
-
-  bool is_premium = td_->option_manager_->get_option_boolean("is_premium");
-  TRY_RESULT_PROMISE(promise, content,
-                     get_input_message_content(DialogId(), std::move(input_message_content), td_, is_premium));
-  if (!content.ttl.is_empty()) {
-    return promise.set_error(Status::Error(400, "Can't enable self-destruction for media"));
-  }
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-
-  auto message = create_business_message_to_send(business_connection_id, dialog_id, MessageInputReplyTo(), false, false,
-                                                 MessageEffectId(), std::move(new_reply_markup), std::move(content));
-  message->message_id_ = message_id;
-
-  do_edit_message_media(std::move(message), std::move(promise));
-}
-
-void BusinessConnectionManager::do_edit_message_media(unique_ptr<PendingMessage> &&message,
-                                                      Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  auto covers = get_message_content_need_to_upload_covers(td_, message->content_.get());
-  if (!covers.empty()) {
-    auto business_connection_id = message->business_connection_id_;
-    auto dialog_id = message->dialog_id_;
-    return td_->message_query_manager_->upload_message_covers(
-        business_connection_id, dialog_id, std::move(covers),
-        PromiseCreator::lambda([actor_id = actor_id(this), message = std::move(message),
-                                promise = std::move(promise)](Result<Unit> result) mutable {
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-          send_closure(actor_id, &BusinessConnectionManager::do_edit_message_media, std::move(message),
-                       std::move(promise));
-        }));
-  }
-
-  upload_media(std::move(message), PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                                              Result<UploadMediaResult> &&result) mutable {
-                 send_closure(actor_id, &BusinessConnectionManager::do_edit_business_message_media, std::move(result),
-                              std::move(promise));
-               }));
-}
-
-void BusinessConnectionManager::do_edit_business_message_media(
-    Result<UploadMediaResult> &&result, Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, upload_result, std::move(result));
-  CHECK(upload_result.input_media_ != nullptr);
-
-  auto message = std::move(upload_result.message_);
-  CHECK(message != nullptr);
-  const FormattedText *caption = get_message_content_caption(message->content_.get());
-  td_->create_handler<EditBusinessMessageQuery>(std::move(promise))
-      ->send(1 << 11, message->business_connection_id_, message->dialog_id_, message->message_id_,
-             caption == nullptr ? "" : caption->text,
-             get_input_message_entities(td_->user_manager_.get(), caption, "do_edit_business_message_media"),
-             std::move(upload_result.input_media_), message->invert_media_,
-             get_input_reply_markup(td_->user_manager_.get(), message->reply_markup_));
-}
-
-void BusinessConnectionManager::edit_business_message_caption(
-    BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-    td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup, td_api::object_ptr<td_api::formattedText> &&input_caption,
-    bool invert_media, Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-  TRY_STATUS_PROMISE(promise, check_business_message_id(message_id));
-  TRY_RESULT_PROMISE(promise, caption,
-                     get_formatted_text(td_, td_->dialog_manager_->get_my_dialog_id(), std::move(input_caption),
-                                        td_->auth_manager_->is_bot(), true, false, false));
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-
-  td_->create_handler<EditBusinessMessageQuery>(std::move(promise))
-      ->send(1 << 11, business_connection_id, dialog_id, message_id, caption.text,
-             get_input_message_entities(td_->user_manager_.get(), caption.entities, "edit_business_message_caption"),
-             nullptr, invert_media, get_input_reply_markup(td_->user_manager_.get(), new_reply_markup));
-}
-
-void BusinessConnectionManager::edit_business_message_reply_markup(
-    BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-    td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-    Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-  TRY_STATUS_PROMISE(promise, check_business_message_id(message_id));
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-
-  td_->create_handler<EditBusinessMessageQuery>(std::move(promise))
-      ->send(0, business_connection_id, dialog_id, message_id, string(),
-             vector<telegram_api::object_ptr<telegram_api::MessageEntity>>(), nullptr, false /*ignored*/,
-             get_input_reply_markup(td_->user_manager_.get(), new_reply_markup));
-}
-
-void BusinessConnectionManager::stop_poll(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                          MessageId message_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                          Promise<td_api::object_ptr<td_api::businessMessage>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-  TRY_STATUS_PROMISE(promise, check_business_message_id(message_id));
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-
-  td_->create_handler<StopBusinessPollQuery>(std::move(promise))
-      ->send(business_connection_id, dialog_id, message_id, std::move(new_reply_markup));
-}
-
-void BusinessConnectionManager::read_business_message(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                                      MessageId message_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id, dialog_id));
-  TRY_STATUS_PROMISE(promise, check_business_message_id(message_id));
-
-  td_->create_handler<ReadBusinessMessageQuery>(std::move(promise))
-      ->send(business_connection_id, dialog_id, message_id);
-}
-
-void BusinessConnectionManager::delete_business_messages(BusinessConnectionId business_connection_id,
-                                                         const vector<MessageId> &message_ids,
-                                                         Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id));
-  for (auto message_id : message_ids) {
-    TRY_STATUS_PROMISE(promise, check_business_message_id(message_id));
-  }
-  if (message_ids.size() > 100u) {
-    return promise.set_error(Status::Error(400, "Too many messages identifiers specified"));
-  }
-
-  td_->create_handler<DeleteBusinessMessagesQuery>(std::move(promise))->send(business_connection_id, message_ids);
-}
-
-void BusinessConnectionManager::delete_business_story(BusinessConnectionId business_connection_id, StoryId story_id,
-                                                      Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id));
-  TRY_STATUS_PROMISE(promise, check_business_story_id(story_id));
-  td_->create_handler<DeleteBusinessStoriesQuery>(std::move(promise))->send(business_connection_id, {story_id});
-}
-
-void BusinessConnectionManager::set_business_name(BusinessConnectionId business_connection_id, const string &first_name,
-                                                  const string &last_name, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id));
-  auto user_id = get_business_connection_user_id(business_connection_id);
-
-  td_->create_handler<UpdateBusinessProfileQuery>(std::move(promise))
-      ->send(business_connection_id, user_id, true, clean_name(first_name, MAX_NAME_LENGTH),
-             clean_name(last_name, MAX_NAME_LENGTH), false, string());
-}
-
-void BusinessConnectionManager::set_business_about(BusinessConnectionId business_connection_id, const string &about,
-                                                   Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id));
-  auto user_id = get_business_connection_user_id(business_connection_id);
-
-  td_->create_handler<UpdateBusinessProfileQuery>(std::move(promise))
-      ->send(business_connection_id, user_id, false, string(), string(), true, about);
-}
-
-void BusinessConnectionManager::set_business_username(BusinessConnectionId business_connection_id,
-                                                      const string &username, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id));
-  if (!username.empty() && !is_allowed_username(username)) {
-    return promise.set_error(Status::Error(400, "Username is invalid"));
-  }
-  auto user_id = get_business_connection_user_id(business_connection_id);
-
-  td_->create_handler<UpdateBusinessUsernameQuery>(std::move(promise))->send(business_connection_id, user_id, username);
-}
-
-void BusinessConnectionManager::set_business_gift_settings(BusinessConnectionId business_connection_id,
-                                                           StarGiftSettings settings, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id));
-  auto user_id = get_business_connection_user_id(business_connection_id);
-
-  td_->create_handler<UpdateBusinessGiftSettingsQuery>(std::move(promise))
-      ->send(business_connection_id, user_id, settings);
-}
-
-void BusinessConnectionManager::get_business_star_status(BusinessConnectionId business_connection_id,
-                                                         Promise<td_api::object_ptr<td_api::starAmount>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id));
-  td_->create_handler<GetBusinessStarsStatusQuery>(std::move(promise))->send(business_connection_id);
-}
-
-void BusinessConnectionManager::transfer_business_stars(BusinessConnectionId business_connection_id, int64 star_count,
-                                                        Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_business_connection(business_connection_id));
-  if (star_count <= 0 || star_count > 1000000000) {
-    return promise.set_error(Status::Error(400, "Invalid amount of Telegram Stars to transfer specified"));
-  }
-
-  td_->create_handler<GetBusinessStarTransferPaymentFormQuery>(std::move(promise))
-      ->send(business_connection_id, star_count);
-}
-
-td_api::object_ptr<td_api::updateBusinessConnection> BusinessConnectionManager::get_update_business_connection(
-    const BusinessConnection *connection) const {
-  return td_api::make_object<td_api::updateBusinessConnection>(connection->get_business_connection_object(td_));
-}
-
-void BusinessConnectionManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  business_connections_.foreach([&](const BusinessConnectionId &business_connection_id,
-                                    const unique_ptr<BusinessConnection> &business_connection) {
-    updates.push_back(get_update_business_connection(business_connection.get()));
-  });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessConnectionManager.h b/third-party/td/td/td/telegram/BusinessConnectionManager.h
deleted file mode 100644
index 35c17c170c..0000000000
--- a/third-party/td/td/td/telegram/BusinessConnectionManager.h
+++ /dev/null
@@ -1,265 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/MessageEffectId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageInputReplyTo.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/StarGiftSettings.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-#include <memory>
-
-namespace td {
-
-struct InputMessageContent;
-struct ReplyMarkup;
-class Td;
-
-class BusinessConnectionManager final : public Actor {
- public:
-  BusinessConnectionManager(Td *td, ActorShared<> parent);
-  BusinessConnectionManager(const BusinessConnectionManager &) = delete;
-  BusinessConnectionManager &operator=(const BusinessConnectionManager &) = delete;
-  BusinessConnectionManager(BusinessConnectionManager &&) = delete;
-  BusinessConnectionManager &operator=(BusinessConnectionManager &&) = delete;
-  ~BusinessConnectionManager() final;
-
-  Status check_business_connection(const BusinessConnectionId &connection_id) const;
-
-  Status check_business_connection(const BusinessConnectionId &connection_id, DialogId dialog_id) const;
-
-  UserId get_business_connection_user_id(const BusinessConnectionId &connection_id) const;
-
-  DcId get_business_connection_dc_id(const BusinessConnectionId &connection_id) const;
-
-  void on_update_bot_business_connect(telegram_api::object_ptr<telegram_api::botBusinessConnection> &&connection);
-
-  void on_update_bot_new_business_message(const BusinessConnectionId &connection_id,
-                                          telegram_api::object_ptr<telegram_api::Message> &&message,
-                                          telegram_api::object_ptr<telegram_api::Message> &&reply_to_message);
-
-  void on_update_bot_edit_business_message(const BusinessConnectionId &connection_id,
-                                           telegram_api::object_ptr<telegram_api::Message> &&message,
-                                           telegram_api::object_ptr<telegram_api::Message> &&reply_to_message);
-
-  void on_update_bot_delete_business_messages(const BusinessConnectionId &connection_id, DialogId dialog_id,
-                                              vector<int32> &&messages);
-
-  void get_business_connection(const BusinessConnectionId &connection_id,
-                               Promise<td_api::object_ptr<td_api::businessConnection>> &&promise);
-
-  void send_message(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, bool disable_notification,
-                    bool protect_content, MessageEffectId effect_id,
-                    td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-                    Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void send_message_album(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                          td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, bool disable_notification,
-                          bool protect_content, MessageEffectId effect_id,
-                          vector<td_api::object_ptr<td_api::InputMessageContent>> &&input_message_contents,
-                          Promise<td_api::object_ptr<td_api::businessMessages>> &&promise);
-
-  void edit_business_message_text(BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-                                  td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                  td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                  Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void edit_business_message_live_location(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                           MessageId message_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                           td_api::object_ptr<td_api::location> &&input_location, int32 live_period,
-                                           int32 heading, int32 proximity_alert_radius,
-                                           Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void edit_business_message_media(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                   MessageId message_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                   td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                   Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void edit_business_message_caption(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                     MessageId message_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                     td_api::object_ptr<td_api::formattedText> &&input_caption, bool invert_media,
-                                     Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void edit_business_message_reply_markup(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                          MessageId message_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                          Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void stop_poll(BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-                 td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                 Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void read_business_message(BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-                             Promise<Unit> &&promise);
-
-  void delete_business_messages(BusinessConnectionId business_connection_id, const vector<MessageId> &message_ids,
-                                Promise<Unit> &&promise);
-
-  void delete_business_story(BusinessConnectionId business_connection_id, StoryId story_id, Promise<Unit> &&promise);
-
-  void set_business_name(BusinessConnectionId business_connection_id, const string &first_name, const string &last_name,
-                         Promise<Unit> &&promise);
-
-  void set_business_about(BusinessConnectionId business_connection_id, const string &about, Promise<Unit> &&promise);
-
-  void set_business_username(BusinessConnectionId business_connection_id, const string &username,
-                             Promise<Unit> &&promise);
-
-  void set_business_gift_settings(BusinessConnectionId business_connection_id, StarGiftSettings settings,
-                                  Promise<Unit> &&promise);
-
-  void get_business_star_status(BusinessConnectionId business_connection_id,
-                                Promise<td_api::object_ptr<td_api::starAmount>> &&promise);
-
-  void transfer_business_stars(BusinessConnectionId business_connection_id, int64 star_count, Promise<Unit> &&promise);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  static constexpr size_t MAX_NAME_LENGTH = 64;  // server side limit for first/last name
-
-  struct BusinessConnection;
-  struct PendingMessage;
-  class SendBusinessMessageQuery;
-  class SendBusinessMediaQuery;
-  class SendBusinessMultiMediaQuery;
-  class UploadBusinessMediaQuery;
-  class UploadMediaCallback;
-  class UploadThumbnailCallback;
-  class EditBusinessMessageQuery;
-  class StopBusinessPollQuery;
-
-  struct UploadMediaResult {
-    unique_ptr<PendingMessage> message_;
-    telegram_api::object_ptr<telegram_api::InputMedia> input_media_;
-  };
-
-  struct BeingUploadedMedia {
-    unique_ptr<PendingMessage> message_;
-    telegram_api::object_ptr<telegram_api::InputFile> input_file_;
-    Promise<UploadMediaResult> promise_;
-  };
-
-  struct MediaGroupSendRequest {
-    size_t finished_count_ = 0;
-    vector<Result<UploadMediaResult>> upload_results_;
-    Promise<td_api::object_ptr<td_api::businessMessages>> promise_;
-    unique_ptr<PendingMessage> paid_media_message_;
-    Promise<td_api::object_ptr<td_api::businessMessage>> paid_media_promise_;
-  };
-
-  void tear_down() final;
-
-  Status check_business_message_id(MessageId message_id) const;
-
-  Status check_business_story_id(StoryId story_id) const;
-
-  void on_get_business_connection(const BusinessConnectionId &connection_id,
-                                  Result<telegram_api::object_ptr<telegram_api::Updates>> r_updates);
-
-  MessageInputReplyTo create_business_message_input_reply_to(
-      td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to);
-
-  Result<InputMessageContent> process_input_message_content(
-      td_api::object_ptr<td_api::InputMessageContent> &&input_message_content);
-
-  unique_ptr<PendingMessage> create_business_message_to_send(BusinessConnectionId business_connection_id,
-                                                             DialogId dialog_id, MessageInputReplyTo &&input_reply_to,
-                                                             bool disable_notification, bool protect_content,
-                                                             MessageEffectId effect_id,
-                                                             unique_ptr<ReplyMarkup> &&reply_markup,
-                                                             InputMessageContent &&input_content) const;
-
-  void do_send_message(unique_ptr<PendingMessage> &&message,
-                       Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void process_sent_business_message(telegram_api::object_ptr<telegram_api::Updates> &&updates_ptr,
-                                     Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void upload_media(unique_ptr<PendingMessage> &&message, Promise<UploadMediaResult> &&promise,
-                    vector<int> bad_parts = {});
-
-  void complete_send_media(unique_ptr<PendingMessage> &&message,
-                           telegram_api::object_ptr<telegram_api::InputMedia> &&input_media,
-                           Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void on_upload_media(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_media_error(FileUploadId file_upload_id, Status status);
-
-  void on_upload_thumbnail(FileUploadId thumbnail_file_upload_id,
-                           telegram_api::object_ptr<telegram_api::InputFile> thumbnail_input_file);
-
-  void do_upload_media(BeingUploadedMedia &&being_uploaded_media,
-                       telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail);
-
-  void complete_upload_media(unique_ptr<PendingMessage> &&message,
-                             telegram_api::object_ptr<telegram_api::MessageMedia> &&media,
-                             Promise<UploadMediaResult> &&promise);
-
-  int64 generate_new_media_album_id();
-
-  void do_send_message_album(int64 request_id, BusinessConnectionId business_connection_id, DialogId dialog_id,
-                             MessageInputReplyTo &&input_reply_to, bool disable_notification, bool protect_content,
-                             MessageEffectId effect_id, vector<InputMessageContent> &&message_contents,
-                             Promise<td_api::object_ptr<td_api::businessMessages>> &&promise);
-
-  void on_upload_message_album_media(int64 request_id, size_t media_pos, Result<UploadMediaResult> &&result);
-
-  void process_sent_business_message_album(telegram_api::object_ptr<telegram_api::Updates> &&updates_ptr,
-                                           Promise<td_api::object_ptr<td_api::businessMessages>> &&promise);
-
-  void on_upload_message_paid_media(int64 request_id, size_t media_pos, Result<UploadMediaResult> &&result);
-
-  void on_fail_send_message(unique_ptr<PendingMessage> &&message, const Status &error);
-
-  void do_edit_message_media(unique_ptr<PendingMessage> &&message,
-                             Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  void do_edit_business_message_media(Result<UploadMediaResult> &&result,
-                                      Promise<td_api::object_ptr<td_api::businessMessage>> &&promise);
-
-  td_api::object_ptr<td_api::updateBusinessConnection> get_update_business_connection(
-      const BusinessConnection *connection) const;
-
-  WaitFreeHashMap<BusinessConnectionId, unique_ptr<BusinessConnection>, BusinessConnectionIdHash> business_connections_;
-
-  FlatHashMap<BusinessConnectionId, vector<Promise<td_api::object_ptr<td_api::businessConnection>>>,
-              BusinessConnectionIdHash>
-      get_business_connection_queries_;
-
-  int64 current_media_group_send_request_id_ = 0;
-  FlatHashMap<int64, MediaGroupSendRequest> media_group_send_requests_;
-
-  std::shared_ptr<UploadMediaCallback> upload_media_callback_;
-  std::shared_ptr<UploadThumbnailCallback> upload_thumbnail_callback_;
-
-  FlatHashMap<FileUploadId, BeingUploadedMedia, FileUploadIdHash> being_uploaded_files_;
-  FlatHashMap<FileUploadId, BeingUploadedMedia, FileUploadIdHash> being_uploaded_thumbnails_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessGreetingMessage.cpp b/third-party/td/td/td/telegram/BusinessGreetingMessage.cpp
deleted file mode 100644
index d672bae13f..0000000000
--- a/third-party/td/td/td/telegram/BusinessGreetingMessage.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessGreetingMessage.h"
-
-#include "td/telegram/Dependencies.h"
-
-#include "td/utils/misc.h"
-
-namespace td {
-
-BusinessGreetingMessage::BusinessGreetingMessage(
-    telegram_api::object_ptr<telegram_api::businessGreetingMessage> greeting_message) {
-  if (greeting_message == nullptr) {
-    return;
-  }
-  shortcut_id_ = QuickReplyShortcutId(greeting_message->shortcut_id_);
-  recipients_ = BusinessRecipients(std::move(greeting_message->recipients_));
-  inactivity_days_ = clamp(greeting_message->no_activity_days_ / 7 * 7, 7, 28);
-}
-
-BusinessGreetingMessage::BusinessGreetingMessage(
-    td_api::object_ptr<td_api::businessGreetingMessageSettings> greeting_message) {
-  if (greeting_message == nullptr) {
-    return;
-  }
-  auto inactivity_days = greeting_message->inactivity_days_;
-  if (inactivity_days < 7 || inactivity_days > 28 || inactivity_days % 7 != 0) {
-    return;
-  }
-  shortcut_id_ = QuickReplyShortcutId(greeting_message->shortcut_id_);
-  recipients_ = BusinessRecipients(std::move(greeting_message->recipients_), false);
-  inactivity_days_ = inactivity_days;
-}
-
-td_api::object_ptr<td_api::businessGreetingMessageSettings>
-BusinessGreetingMessage::get_business_greeting_message_settings_object(Td *td) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::businessGreetingMessageSettings>(
-      shortcut_id_.get(), recipients_.get_business_recipients_object(td), inactivity_days_);
-}
-
-telegram_api::object_ptr<telegram_api::inputBusinessGreetingMessage>
-BusinessGreetingMessage::get_input_business_greeting_message(Td *td) const {
-  return telegram_api::make_object<telegram_api::inputBusinessGreetingMessage>(
-      shortcut_id_.get(), recipients_.get_input_business_recipients(td), inactivity_days_);
-}
-
-void BusinessGreetingMessage::add_dependencies(Dependencies &dependencies) const {
-  recipients_.add_dependencies(dependencies);
-}
-
-bool operator==(const BusinessGreetingMessage &lhs, const BusinessGreetingMessage &rhs) {
-  return lhs.shortcut_id_ == rhs.shortcut_id_ && lhs.recipients_ == rhs.recipients_ &&
-         lhs.inactivity_days_ == rhs.inactivity_days_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessGreetingMessage &greeting_message) {
-  return string_builder << "greeting message " << greeting_message.shortcut_id_ << ' ' << greeting_message.recipients_
-                        << " after " << greeting_message.inactivity_days_ << " inactivity days";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessGreetingMessage.h b/third-party/td/td/td/telegram/BusinessGreetingMessage.h
deleted file mode 100644
index 332245a78b..0000000000
--- a/third-party/td/td/td/telegram/BusinessGreetingMessage.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessRecipients.h"
-#include "td/telegram/QuickReplyShortcutId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class BusinessGreetingMessage {
- public:
-  BusinessGreetingMessage() = default;
-
-  explicit BusinessGreetingMessage(telegram_api::object_ptr<telegram_api::businessGreetingMessage> greeting_message);
-
-  explicit BusinessGreetingMessage(td_api::object_ptr<td_api::businessGreetingMessageSettings> greeting_message);
-
-  td_api::object_ptr<td_api::businessGreetingMessageSettings> get_business_greeting_message_settings_object(
-      Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::inputBusinessGreetingMessage> get_input_business_greeting_message(
-      Td *td) const;
-
-  bool is_empty() const {
-    return !is_valid();
-  }
-
-  bool is_valid() const {
-    return shortcut_id_.is_server();
-  }
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  QuickReplyShortcutId shortcut_id_;
-  BusinessRecipients recipients_;
-  int32 inactivity_days_ = 0;
-
-  friend bool operator==(const BusinessGreetingMessage &lhs, const BusinessGreetingMessage &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessGreetingMessage &greeting_message);
-};
-
-bool operator==(const BusinessGreetingMessage &lhs, const BusinessGreetingMessage &rhs);
-
-inline bool operator!=(const BusinessGreetingMessage &lhs, const BusinessGreetingMessage &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessGreetingMessage &greeting_message);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessGreetingMessage.hpp b/third-party/td/td/td/telegram/BusinessGreetingMessage.hpp
deleted file mode 100644
index 227b9abfd6..0000000000
--- a/third-party/td/td/td/telegram/BusinessGreetingMessage.hpp
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessGreetingMessage.h"
-#include "td/telegram/BusinessRecipients.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessGreetingMessage::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(shortcut_id_, storer);
-  td::store(recipients_, storer);
-  td::store(inactivity_days_, storer);
-}
-
-template <class ParserT>
-void BusinessGreetingMessage::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(shortcut_id_, parser);
-  td::parse(recipients_, parser);
-  td::parse(inactivity_days_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessInfo.cpp b/third-party/td/td/td/telegram/BusinessInfo.cpp
deleted file mode 100644
index ec16866cfb..0000000000
--- a/third-party/td/td/td/telegram/BusinessInfo.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessInfo.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/Global.h"
-
-namespace td {
-
-td_api::object_ptr<td_api::businessInfo> BusinessInfo::get_business_info_object(Td *td) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  auto unix_time = G()->unix_time();
-  return td_api::make_object<td_api::businessInfo>(
-      location_.get_business_location_object(), work_hours_.get_business_opening_hours_object(),
-      work_hours_.get_local_business_opening_hours_object(td), work_hours_.get_next_open_close_in(td, unix_time, false),
-      work_hours_.get_next_open_close_in(td, unix_time, true),
-      greeting_message_.get_business_greeting_message_settings_object(td),
-      away_message_.get_business_away_message_settings_object(td), intro_.get_business_start_page_object(td));
-}
-
-bool BusinessInfo::is_empty_location(const DialogLocation &location) {
-  return location.empty() && location.get_address().empty();
-}
-
-bool BusinessInfo::is_empty() const {
-  return is_empty_location(location_) && work_hours_.is_empty() && away_message_.is_empty() &&
-         greeting_message_.is_empty() && intro_.is_empty();
-}
-
-bool BusinessInfo::set_location(unique_ptr<BusinessInfo> &business_info, DialogLocation &&location) {
-  if (business_info == nullptr) {
-    if (is_empty_location(location)) {
-      return false;
-    }
-    business_info = make_unique<BusinessInfo>();
-  }
-  if (business_info->location_ != location) {
-    business_info->location_ = std::move(location);
-    return true;
-  }
-  return false;
-}
-
-bool BusinessInfo::set_work_hours(unique_ptr<BusinessInfo> &business_info, BusinessWorkHours &&work_hours) {
-  if (business_info == nullptr) {
-    if (work_hours.is_empty()) {
-      return false;
-    }
-    business_info = make_unique<BusinessInfo>();
-  }
-  if (business_info->work_hours_ != work_hours) {
-    business_info->work_hours_ = std::move(work_hours);
-    return true;
-  }
-  return false;
-}
-
-bool BusinessInfo::set_away_message(unique_ptr<BusinessInfo> &business_info, BusinessAwayMessage &&away_message) {
-  if (business_info == nullptr) {
-    if (away_message.is_empty()) {
-      return false;
-    }
-    business_info = make_unique<BusinessInfo>();
-  }
-  if (business_info->away_message_ != away_message) {
-    business_info->away_message_ = std::move(away_message);
-    return true;
-  }
-  return false;
-}
-
-bool BusinessInfo::set_greeting_message(unique_ptr<BusinessInfo> &business_info,
-                                        BusinessGreetingMessage &&greeting_message) {
-  if (business_info == nullptr) {
-    if (greeting_message.is_empty()) {
-      return false;
-    }
-    business_info = make_unique<BusinessInfo>();
-  }
-  if (business_info->greeting_message_ != greeting_message) {
-    business_info->greeting_message_ = std::move(greeting_message);
-    return true;
-  }
-  return false;
-}
-
-bool BusinessInfo::set_intro(unique_ptr<BusinessInfo> &business_info, BusinessIntro &&intro) {
-  if (business_info == nullptr) {
-    if (intro.is_empty()) {
-      return false;
-    }
-    business_info = make_unique<BusinessInfo>();
-  }
-  if (business_info->intro_ != intro) {
-    business_info->intro_ = std::move(intro);
-    return true;
-  }
-  return false;
-}
-
-void BusinessInfo::add_dependencies(Dependencies &dependencies) const {
-  away_message_.add_dependencies(dependencies);
-  greeting_message_.add_dependencies(dependencies);
-}
-
-vector<FileId> BusinessInfo::get_file_ids(const Td *td) const {
-  return intro_.get_file_ids(td);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessInfo.h b/third-party/td/td/td/telegram/BusinessInfo.h
deleted file mode 100644
index d7011eb260..0000000000
--- a/third-party/td/td/td/telegram/BusinessInfo.h
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessAwayMessage.h"
-#include "td/telegram/BusinessGreetingMessage.h"
-#include "td/telegram/BusinessIntro.h"
-#include "td/telegram/BusinessWorkHours.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class BusinessInfo {
- public:
-  td_api::object_ptr<td_api::businessInfo> get_business_info_object(Td *td) const;
-
-  bool is_empty() const;
-
-  static bool set_location(unique_ptr<BusinessInfo> &business_info, DialogLocation &&location);
-
-  static bool set_work_hours(unique_ptr<BusinessInfo> &business_info, BusinessWorkHours &&work_hours);
-
-  static bool set_away_message(unique_ptr<BusinessInfo> &business_info, BusinessAwayMessage &&away_message);
-
-  static bool set_greeting_message(unique_ptr<BusinessInfo> &business_info, BusinessGreetingMessage &&greeting_message);
-
-  static bool set_intro(unique_ptr<BusinessInfo> &business_info, BusinessIntro &&intro);
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  vector<FileId> get_file_ids(const Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  static bool is_empty_location(const DialogLocation &location);
-
-  DialogLocation location_;
-  BusinessWorkHours work_hours_;
-  BusinessAwayMessage away_message_;
-  BusinessGreetingMessage greeting_message_;
-  BusinessIntro intro_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessInfo.hpp b/third-party/td/td/td/telegram/BusinessInfo.hpp
deleted file mode 100644
index 0e4a17a83c..0000000000
--- a/third-party/td/td/td/telegram/BusinessInfo.hpp
+++ /dev/null
@@ -1,83 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessInfo.h"
-
-#include "td/telegram/BusinessAwayMessage.hpp"
-#include "td/telegram/BusinessGreetingMessage.hpp"
-#include "td/telegram/BusinessIntro.hpp"
-#include "td/telegram/BusinessWorkHours.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessInfo::store(StorerT &storer) const {
-  bool has_location = !is_empty_location(location_);
-  bool has_work_hours = !work_hours_.is_empty();
-  bool has_away_message = away_message_.is_valid();
-  bool has_greeting_message = greeting_message_.is_valid();
-  bool has_intro = !intro_.is_empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_location);
-  STORE_FLAG(has_work_hours);
-  STORE_FLAG(has_away_message);
-  STORE_FLAG(has_greeting_message);
-  STORE_FLAG(has_intro);
-  END_STORE_FLAGS();
-  if (has_location) {
-    td::store(location_, storer);
-  }
-  if (has_work_hours) {
-    td::store(work_hours_, storer);
-  }
-  if (has_away_message) {
-    td::store(away_message_, storer);
-  }
-  if (has_greeting_message) {
-    td::store(greeting_message_, storer);
-  }
-  if (has_intro) {
-    td::store(intro_, storer);
-  }
-}
-
-template <class ParserT>
-void BusinessInfo::parse(ParserT &parser) {
-  bool has_location;
-  bool has_work_hours;
-  bool has_away_message;
-  bool has_greeting_message;
-  bool has_intro;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_location);
-  PARSE_FLAG(has_work_hours);
-  PARSE_FLAG(has_away_message);
-  PARSE_FLAG(has_greeting_message);
-  PARSE_FLAG(has_intro);
-  END_PARSE_FLAGS();
-  if (has_location) {
-    td::parse(location_, parser);
-  }
-  if (has_work_hours) {
-    td::parse(work_hours_, parser);
-  }
-  if (has_away_message) {
-    td::parse(away_message_, parser);
-  }
-  if (has_greeting_message) {
-    td::parse(greeting_message_, parser);
-  }
-  if (has_intro) {
-    td::parse(intro_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessIntro.cpp b/third-party/td/td/td/telegram/BusinessIntro.cpp
deleted file mode 100644
index 06b6f148f4..0000000000
--- a/third-party/td/td/td/telegram/BusinessIntro.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessIntro.h"
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-BusinessIntro::BusinessIntro(Td *td, telegram_api::object_ptr<telegram_api::businessIntro> intro) {
-  if (intro == nullptr) {
-    return;
-  }
-  if (!clean_input_string(intro->title_)) {
-    intro->title_.clear();
-  }
-  if (!clean_input_string(intro->description_)) {
-    intro->description_.clear();
-  }
-  title_ = std::move(intro->title_);
-  description_ = std::move(intro->description_);
-  sticker_file_id_ = td->stickers_manager_
-                         ->on_get_sticker_document(std::move(intro->sticker_), StickerFormat::Unknown, "BusinessIntro")
-                         .second;
-}
-
-BusinessIntro::BusinessIntro(Td *td, td_api::object_ptr<td_api::inputBusinessStartPage> intro) {
-  if (intro == nullptr) {
-    return;
-  }
-  title_ = std::move(intro->title_);
-  description_ = std::move(intro->message_);
-  auto r_file_id = td->file_manager_->get_input_file_id(FileType::Sticker, intro->sticker_, DialogId(), true, false);
-  auto file_id = r_file_id.is_ok() ? r_file_id.move_as_ok() : FileId();
-  if (file_id.is_valid()) {
-    auto file_view = td->file_manager_->get_file_view(file_id);
-    const auto *main_remote_location = file_view.get_main_remote_location();
-    if (main_remote_location == nullptr || !main_remote_location->is_document() || main_remote_location->is_web() ||
-        td->stickers_manager_->get_sticker_type(file_id) == StickerType::CustomEmoji) {
-      file_id = FileId();
-    }
-  }
-  sticker_file_id_ = file_id;
-}
-
-td_api::object_ptr<td_api::businessStartPage> BusinessIntro::get_business_start_page_object(Td *td) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::businessStartPage>(title_, description_,
-                                                        td->stickers_manager_->get_sticker_object(sticker_file_id_));
-}
-
-telegram_api::object_ptr<telegram_api::inputBusinessIntro> BusinessIntro::get_input_business_intro(Td *td) const {
-  int32 flags = 0;
-  telegram_api::object_ptr<telegram_api::InputDocument> input_document;
-  if (sticker_file_id_.is_valid()) {
-    auto file_view = td->file_manager_->get_file_view(sticker_file_id_);
-    const auto *main_remote_location = file_view.get_main_remote_location();
-    CHECK(main_remote_location != nullptr);
-    input_document = main_remote_location->as_input_document();
-    flags |= telegram_api::inputBusinessIntro::STICKER_MASK;
-  }
-
-  return telegram_api::make_object<telegram_api::inputBusinessIntro>(flags, title_, description_,
-                                                                     std::move(input_document));
-}
-
-vector<FileId> BusinessIntro::get_file_ids(const Td *td) const {
-  if (!sticker_file_id_.is_valid()) {
-    return {};
-  }
-  return Document(Document::Type::Sticker, sticker_file_id_).get_file_ids(td);
-}
-
-bool operator==(const BusinessIntro &lhs, const BusinessIntro &rhs) {
-  return lhs.title_ == rhs.title_ && lhs.description_ == rhs.description_ &&
-         lhs.sticker_file_id_ == rhs.sticker_file_id_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessIntro &intro) {
-  return string_builder << "business intro " << intro.title_ << '|' << intro.description_ << '|'
-                        << intro.sticker_file_id_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessIntro.h b/third-party/td/td/td/telegram/BusinessIntro.h
deleted file mode 100644
index b4c20d6ad6..0000000000
--- a/third-party/td/td/td/telegram/BusinessIntro.h
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class BusinessIntro {
- public:
-  BusinessIntro() = default;
-
-  BusinessIntro(Td *td, telegram_api::object_ptr<telegram_api::businessIntro> intro);
-
-  BusinessIntro(Td *td, td_api::object_ptr<td_api::inputBusinessStartPage> intro);
-
-  td_api::object_ptr<td_api::businessStartPage> get_business_start_page_object(Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::inputBusinessIntro> get_input_business_intro(Td *td) const;
-
-  bool is_empty() const {
-    return title_.empty() && description_.empty() && !sticker_file_id_.is_valid();
-  }
-
-  vector<FileId> get_file_ids(const Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  string title_;
-  string description_;
-  FileId sticker_file_id_;
-
-  friend bool operator==(const BusinessIntro &lhs, const BusinessIntro &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessIntro &intro);
-};
-
-bool operator==(const BusinessIntro &lhs, const BusinessIntro &rhs);
-
-inline bool operator!=(const BusinessIntro &lhs, const BusinessIntro &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessIntro &intro);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessIntro.hpp b/third-party/td/td/td/telegram/BusinessIntro.hpp
deleted file mode 100644
index 93ad8c9cb5..0000000000
--- a/third-party/td/td/td/telegram/BusinessIntro.hpp
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessIntro.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/Td.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessIntro::store(StorerT &storer) const {
-  bool has_title = !title_.empty();
-  bool has_description = !description_.empty();
-  bool has_sticker_file_id = sticker_file_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_title);
-  STORE_FLAG(has_description);
-  STORE_FLAG(has_sticker_file_id);
-  END_STORE_FLAGS();
-  if (has_title) {
-    td::store(title_, storer);
-  }
-  if (has_description) {
-    td::store(description_, storer);
-  }
-  if (has_sticker_file_id) {
-    StickersManager *stickers_manager = storer.context()->td().get_actor_unsafe()->stickers_manager_.get();
-    stickers_manager->store_sticker(sticker_file_id_, false, storer, "BusinessIntro");
-  }
-}
-
-template <class ParserT>
-void BusinessIntro::parse(ParserT &parser) {
-  bool has_title;
-  bool has_description;
-  bool has_sticker_file_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_title);
-  PARSE_FLAG(has_description);
-  PARSE_FLAG(has_sticker_file_id);
-  END_PARSE_FLAGS();
-  if (has_title) {
-    td::parse(title_, parser);
-  }
-  if (has_description) {
-    td::parse(description_, parser);
-  }
-  if (has_sticker_file_id) {
-    StickersManager *stickers_manager = parser.context()->td().get_actor_unsafe()->stickers_manager_.get();
-    sticker_file_id_ = stickers_manager->parse_sticker(false, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessManager.cpp b/third-party/td/td/td/telegram/BusinessManager.cpp
deleted file mode 100644
index 5337b6278e..0000000000
--- a/third-party/td/td/td/telegram/BusinessManager.cpp
+++ /dev/null
@@ -1,625 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/BusinessAwayMessage.h"
-#include "td/telegram/BusinessChatLink.h"
-#include "td/telegram/BusinessConnectedBot.h"
-#include "td/telegram/BusinessGreetingMessage.h"
-#include "td/telegram/BusinessIntro.h"
-#include "td/telegram/BusinessRecipients.h"
-#include "td/telegram/BusinessWorkHours.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/InputBusinessChatLink.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class GetConnectedBotsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessConnectedBot>> promise_;
-
- public:
-  explicit GetConnectedBotsQuery(Promise<td_api::object_ptr<td_api::businessConnectedBot>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getConnectedBots(), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getConnectedBots>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetConnectedBotsQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetConnectedBotsQuery");
-    if (result->connected_bots_.size() > 1u) {
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-    if (result->connected_bots_.empty()) {
-      return promise_.set_value(nullptr);
-    }
-    auto bot = BusinessConnectedBot(std::move(result->connected_bots_[0]));
-    if (!bot.is_valid()) {
-      return on_error(Status::Error(500, "Receive invalid bot"));
-    }
-    promise_.set_value(bot.get_business_connected_bot_object(td_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateConnectedBotQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UpdateConnectedBotQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const BusinessConnectedBot &bot, telegram_api::object_ptr<telegram_api::InputUser> &&input_user) {
-    int32 flags = telegram_api::account_updateConnectedBot::RIGHTS_MASK;
-    auto rights = bot.get_rights().get_input_business_bot_rights();
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateConnectedBot(flags, false, std::move(rights), std::move(input_user),
-                                                 bot.get_recipients().get_input_business_bot_recipients(td_)),
-        {{"me"}}));
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> &&input_user) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateConnectedBot(0, true, nullptr, std::move(input_user),
-                                                 BusinessRecipients().get_input_business_bot_recipients(td_)),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateConnectedBot>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UpdateConnectedBotQuery: " << to_string(ptr);
-    td_->messages_manager_->hide_all_business_bot_manager_bars();
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleConnectedBotPausedQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ToggleConnectedBotPausedQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool is_paused) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_toggleConnectedBotPaused(std::move(input_peer), is_paused), {{"me"}, {dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_toggleConnectedBotPaused>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!result_ptr.ok()) {
-      LOG(INFO) << "Failed to toggle business bot is paused";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleConnectedBotPausedQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DisablePeerConnectedBotQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit DisablePeerConnectedBotQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::account_disablePeerConnectedBot(std::move(input_peer)),
-                                               {{"me"}, {dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_disablePeerConnectedBot>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!result_ptr.ok()) {
-      LOG(INFO) << "Failed to remove business bot";
-    } else {
-      td_->messages_manager_->on_update_dialog_business_bot_removed(dialog_id_);
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "DisablePeerConnectedBotQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBusinessChatLinksQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessChatLinks>> promise_;
-
- public:
-  explicit GetBusinessChatLinksQuery(Promise<td_api::object_ptr<td_api::businessChatLinks>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getBusinessChatLinks(), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getBusinessChatLinks>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetBusinessChatLinksQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetBusinessChatLinksQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetBusinessChatLinksQuery");
-    promise_.set_value(BusinessChatLinks(td_->user_manager_.get(), std::move(ptr->links_))
-                           .get_business_chat_links_object(td_->user_manager_.get()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CreateBusinessChatLinkQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessChatLink>> promise_;
-
- public:
-  explicit CreateBusinessChatLinkQuery(Promise<td_api::object_ptr<td_api::businessChatLink>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(InputBusinessChatLink &&link) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_createBusinessChatLink(link.get_input_business_chat_link(td_->user_manager_.get())),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_createBusinessChatLink>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CreateBusinessChatLinkQuery: " << to_string(ptr);
-    promise_.set_value(BusinessChatLink(td_->user_manager_.get(), std::move(ptr))
-                           .get_business_chat_link_object(td_->user_manager_.get()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditBusinessChatLinkQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessChatLink>> promise_;
-
- public:
-  explicit EditBusinessChatLinkQuery(Promise<td_api::object_ptr<td_api::businessChatLink>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &link, InputBusinessChatLink &&input_link) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::account_editBusinessChatLink(
-                                            link, input_link.get_input_business_chat_link(td_->user_manager_.get())),
-                                        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_editBusinessChatLink>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditBusinessChatLinkQuery: " << to_string(ptr);
-    promise_.set_value(BusinessChatLink(td_->user_manager_.get(), std::move(ptr))
-                           .get_business_chat_link_object(td_->user_manager_.get()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteBusinessChatLinkQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteBusinessChatLinkQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &link) {
-    send_query(G()->net_query_creator().create(telegram_api::account_deleteBusinessChatLink(link), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_deleteBusinessChatLink>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResolveBusinessChatLinkQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::businessChatLinkInfo>> promise_;
-
- public:
-  explicit ResolveBusinessChatLinkQuery(Promise<td_api::object_ptr<td_api::businessChatLinkInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &link) {
-    send_query(G()->net_query_creator().create(telegram_api::account_resolveBusinessChatLink(link), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_resolveBusinessChatLink>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ResolveBusinessChatLinkQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "ResolveBusinessChatLinkQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "ResolveBusinessChatLinkQuery");
-
-    auto text = get_message_text(td_->user_manager_.get(), std::move(ptr->message_), std::move(ptr->entities_), true,
-                                 true, 0, false, "ResolveBusinessChatLinkQuery");
-    if (text.text[0] == '@') {
-      text.text = ' ' + text.text;
-      for (auto &entity : text.entities) {
-        entity.offset++;
-      }
-    }
-    DialogId dialog_id(ptr->peer_);
-    if (dialog_id.get_type() != DialogType::User) {
-      LOG(ERROR) << "Receive " << dialog_id;
-      return on_error(Status::Error(500, "Receive invalid business chat"));
-    }
-    remove_unallowed_entities(td_, text, dialog_id);
-    td_->dialog_manager_->force_create_dialog(dialog_id, "ResolveBusinessChatLinkQuery");
-
-    promise_.set_value(td_api::make_object<td_api::businessChatLinkInfo>(
-        td_->dialog_manager_->get_chat_id_object(dialog_id, "businessChatLinkInfo"),
-        get_formatted_text_object(td_->user_manager_.get(), text, true, -1)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBusinessLocationQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogLocation location_;
-
- public:
-  explicit UpdateBusinessLocationQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogLocation &&location) {
-    location_ = std::move(location);
-    int32 flags = 0;
-    if (!location_.empty()) {
-      flags |= telegram_api::account_updateBusinessLocation::GEO_POINT_MASK;
-    }
-    if (!location_.get_address().empty()) {
-      flags |= telegram_api::account_updateBusinessLocation::ADDRESS_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateBusinessLocation(flags, location_.get_input_geo_point(), location_.get_address()),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateBusinessLocation>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_update_my_user_location(std::move(location_));
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBusinessWorkHoursQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BusinessWorkHours work_hours_;
-
- public:
-  explicit UpdateBusinessWorkHoursQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessWorkHours &&work_hours) {
-    work_hours_ = std::move(work_hours);
-    int32 flags = 0;
-    if (!work_hours_.is_empty()) {
-      flags |= telegram_api::account_updateBusinessWorkHours::BUSINESS_WORK_HOURS_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateBusinessWorkHours(flags, work_hours_.get_input_business_work_hours()), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateBusinessWorkHours>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_update_my_user_work_hours(std::move(work_hours_));
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBusinessGreetingMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BusinessGreetingMessage greeting_message_;
-
- public:
-  explicit UpdateBusinessGreetingMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessGreetingMessage &&greeting_message) {
-    greeting_message_ = std::move(greeting_message);
-    int32 flags = 0;
-    if (!greeting_message_.is_empty()) {
-      flags |= telegram_api::account_updateBusinessGreetingMessage::MESSAGE_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::account_updateBusinessGreetingMessage(
-                                                   flags, greeting_message_.get_input_business_greeting_message(td_)),
-                                               {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateBusinessGreetingMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_update_my_user_greeting_message(std::move(greeting_message_));
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBusinessAwayMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BusinessAwayMessage away_message_;
-
- public:
-  explicit UpdateBusinessAwayMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessAwayMessage &&away_message) {
-    away_message_ = std::move(away_message);
-    int32 flags = 0;
-    if (!away_message_.is_empty()) {
-      flags |= telegram_api::account_updateBusinessAwayMessage::MESSAGE_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateBusinessAwayMessage(flags, away_message_.get_input_business_away_message(td_)),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateBusinessAwayMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_update_my_user_away_message(std::move(away_message_));
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBusinessIntroQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BusinessIntro intro_;
-
- public:
-  explicit UpdateBusinessIntroQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessIntro &&intro) {
-    intro_ = std::move(intro);
-    int32 flags = 0;
-    if (!intro_.is_empty()) {
-      flags |= telegram_api::account_updateBusinessIntro::INTRO_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateBusinessIntro(flags, intro_.get_input_business_intro(td_)), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateBusinessIntro>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_update_my_user_intro(std::move(intro_));
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-BusinessManager::BusinessManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void BusinessManager::tear_down() {
-  parent_.reset();
-}
-
-void BusinessManager::get_business_connected_bot(Promise<td_api::object_ptr<td_api::businessConnectedBot>> &&promise) {
-  td_->create_handler<GetConnectedBotsQuery>(std::move(promise))->send();
-}
-
-void BusinessManager::set_business_connected_bot(td_api::object_ptr<td_api::businessConnectedBot> &&bot,
-                                                 Promise<Unit> &&promise) {
-  if (bot == nullptr) {
-    return promise.set_error(Status::Error(400, "Bot must be non-empty"));
-  }
-  BusinessConnectedBot connected_bot(std::move(bot));
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(connected_bot.get_user_id()));
-  td_->create_handler<UpdateConnectedBotQuery>(std::move(promise))->send(connected_bot, std::move(input_user));
-}
-
-void BusinessManager::delete_business_connected_bot(UserId bot_user_id, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-  td_->create_handler<UpdateConnectedBotQuery>(std::move(promise))->send(std::move(input_user));
-}
-
-void BusinessManager::toggle_business_connected_bot_dialog_is_paused(DialogId dialog_id, bool is_paused,
-                                                                     Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise,
-                     td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write,
-                                                               "toggle_business_connected_bot_dialog_is_paused"));
-  if (dialog_id.get_type() != DialogType::User) {
-    return promise.set_error(Status::Error(400, "The chat has no connected bot"));
-  }
-  td_->messages_manager_->on_update_dialog_business_bot_is_paused(dialog_id, is_paused);
-  td_->create_handler<ToggleConnectedBotPausedQuery>(std::move(promise))->send(dialog_id, is_paused);
-}
-
-void BusinessManager::remove_business_connected_bot_from_dialog(DialogId dialog_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write,
-                                                                        "remove_business_connected_bot_from_dialog"));
-  if (dialog_id.get_type() != DialogType::User) {
-    return promise.set_error(Status::Error(400, "The chat has no connected bot"));
-  }
-  td_->messages_manager_->on_update_dialog_business_bot_removed(dialog_id);
-  td_->create_handler<DisablePeerConnectedBotQuery>(std::move(promise))->send(dialog_id);
-}
-
-void BusinessManager::get_business_chat_links(Promise<td_api::object_ptr<td_api::businessChatLinks>> &&promise) {
-  td_->create_handler<GetBusinessChatLinksQuery>(std::move(promise))->send();
-}
-
-void BusinessManager::create_business_chat_link(td_api::object_ptr<td_api::inputBusinessChatLink> &&link_info,
-                                                Promise<td_api::object_ptr<td_api::businessChatLink>> &&promise) {
-  td_->create_handler<CreateBusinessChatLinkQuery>(std::move(promise))
-      ->send(InputBusinessChatLink(td_, std::move(link_info)));
-}
-
-void BusinessManager::edit_business_chat_link(const string &link,
-                                              td_api::object_ptr<td_api::inputBusinessChatLink> &&link_info,
-                                              Promise<td_api::object_ptr<td_api::businessChatLink>> &&promise) {
-  td_->create_handler<EditBusinessChatLinkQuery>(std::move(promise))
-      ->send(link, InputBusinessChatLink(td_, std::move(link_info)));
-}
-
-void BusinessManager::delete_business_chat_link(const string &link, Promise<Unit> &&promise) {
-  td_->create_handler<DeleteBusinessChatLinkQuery>(std::move(promise))->send(link);
-}
-
-void BusinessManager::get_business_chat_link_info(const string &link,
-                                                  Promise<td_api::object_ptr<td_api::businessChatLinkInfo>> &&promise) {
-  td_->create_handler<ResolveBusinessChatLinkQuery>(std::move(promise))->send(link);
-}
-
-void BusinessManager::set_business_location(DialogLocation &&location, Promise<Unit> &&promise) {
-  td_->create_handler<UpdateBusinessLocationQuery>(std::move(promise))->send(std::move(location));
-}
-
-void BusinessManager::set_business_work_hours(BusinessWorkHours &&work_hours, Promise<Unit> &&promise) {
-  td_->create_handler<UpdateBusinessWorkHoursQuery>(std::move(promise))->send(std::move(work_hours));
-}
-
-void BusinessManager::set_business_greeting_message(BusinessGreetingMessage &&greeting_message,
-                                                    Promise<Unit> &&promise) {
-  td_->create_handler<UpdateBusinessGreetingMessageQuery>(std::move(promise))->send(std::move(greeting_message));
-}
-
-void BusinessManager::set_business_away_message(BusinessAwayMessage &&away_message, Promise<Unit> &&promise) {
-  td_->create_handler<UpdateBusinessAwayMessageQuery>(std::move(promise))->send(std::move(away_message));
-}
-
-void BusinessManager::set_business_intro(BusinessIntro &&intro, Promise<Unit> &&promise) {
-  td_->create_handler<UpdateBusinessIntroQuery>(std::move(promise))->send(std::move(intro));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessManager.h b/third-party/td/td/td/telegram/BusinessManager.h
deleted file mode 100644
index f06a16ee16..0000000000
--- a/third-party/td/td/td/telegram/BusinessManager.h
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class BusinessAwayMessage;
-class BusinessGreetingMessage;
-class BusinessIntro;
-class BusinessWorkHours;
-class DialogLocation;
-class Td;
-
-class BusinessManager final : public Actor {
- public:
-  BusinessManager(Td *td, ActorShared<> parent);
-
-  void get_business_connected_bot(Promise<td_api::object_ptr<td_api::businessConnectedBot>> &&promise);
-
-  void set_business_connected_bot(td_api::object_ptr<td_api::businessConnectedBot> &&bot, Promise<Unit> &&promise);
-
-  void delete_business_connected_bot(UserId bot_user_id, Promise<Unit> &&promise);
-
-  void toggle_business_connected_bot_dialog_is_paused(DialogId dialog_id, bool is_paused, Promise<Unit> &&promise);
-
-  void remove_business_connected_bot_from_dialog(DialogId dialog_id, Promise<Unit> &&promise);
-
-  void get_business_chat_links(Promise<td_api::object_ptr<td_api::businessChatLinks>> &&promise);
-
-  void create_business_chat_link(td_api::object_ptr<td_api::inputBusinessChatLink> &&link_info,
-                                 Promise<td_api::object_ptr<td_api::businessChatLink>> &&promise);
-
-  void edit_business_chat_link(const string &link, td_api::object_ptr<td_api::inputBusinessChatLink> &&link_info,
-                               Promise<td_api::object_ptr<td_api::businessChatLink>> &&promise);
-
-  void delete_business_chat_link(const string &link, Promise<Unit> &&promise);
-
-  void get_business_chat_link_info(const string &link,
-                                   Promise<td_api::object_ptr<td_api::businessChatLinkInfo>> &&promise);
-
-  void set_business_location(DialogLocation &&location, Promise<Unit> &&promise);
-
-  void set_business_work_hours(BusinessWorkHours &&work_hours, Promise<Unit> &&promise);
-
-  void set_business_greeting_message(BusinessGreetingMessage &&greeting_message, Promise<Unit> &&promise);
-
-  void set_business_away_message(BusinessAwayMessage &&away_message, Promise<Unit> &&promise);
-
-  void set_business_intro(BusinessIntro &&intro, Promise<Unit> &&promise);
-
- private:
-  void tear_down() final;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessRecipients.cpp b/third-party/td/td/td/telegram/BusinessRecipients.cpp
deleted file mode 100644
index 378e375a5c..0000000000
--- a/third-party/td/td/td/telegram/BusinessRecipients.cpp
+++ /dev/null
@@ -1,156 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessRecipients.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-
-namespace td {
-
-BusinessRecipients::BusinessRecipients(telegram_api::object_ptr<telegram_api::businessRecipients> recipients)
-    : user_ids_(UserId::get_user_ids(recipients->users_, true))
-    , existing_chats_(recipients->existing_chats_)
-    , new_chats_(recipients->new_chats_)
-    , contacts_(recipients->contacts_)
-    , non_contacts_(recipients->non_contacts_)
-    , exclude_selected_(recipients->exclude_selected_) {
-}
-
-BusinessRecipients::BusinessRecipients(telegram_api::object_ptr<telegram_api::businessBotRecipients> recipients)
-    : user_ids_(UserId::get_user_ids(recipients->users_, true))
-    , excluded_user_ids_(UserId::get_user_ids(recipients->exclude_users_, true))
-    , existing_chats_(recipients->existing_chats_)
-    , new_chats_(recipients->new_chats_)
-    , contacts_(recipients->contacts_)
-    , non_contacts_(recipients->non_contacts_)
-    , exclude_selected_(recipients->exclude_selected_) {
-}
-
-BusinessRecipients::BusinessRecipients(td_api::object_ptr<td_api::businessRecipients> recipients, bool allow_excluded) {
-  if (recipients == nullptr) {
-    return;
-  }
-  for (auto chat_id : recipients->chat_ids_) {
-    DialogId dialog_id(chat_id);
-    if (dialog_id.get_type() == DialogType::User) {
-      user_ids_.push_back(dialog_id.get_user_id());
-    }
-  }
-  if (allow_excluded) {
-    for (auto chat_id : recipients->excluded_chat_ids_) {
-      DialogId dialog_id(chat_id);
-      if (dialog_id.get_type() == DialogType::User) {
-        excluded_user_ids_.push_back(dialog_id.get_user_id());
-      }
-    }
-    if (recipients->exclude_selected_) {
-      append(user_ids_, std::move(excluded_user_ids_));
-      reset_to_empty(excluded_user_ids_);
-    }
-  }
-  existing_chats_ = recipients->select_existing_chats_;
-  new_chats_ = recipients->select_new_chats_;
-  contacts_ = recipients->select_contacts_;
-  non_contacts_ = recipients->select_non_contacts_;
-  exclude_selected_ = recipients->exclude_selected_;
-}
-
-td_api::object_ptr<td_api::businessRecipients> BusinessRecipients::get_business_recipients_object(Td *td) const {
-  vector<int64> chat_ids;
-  for (auto user_id : user_ids_) {
-    DialogId dialog_id(user_id);
-    td->dialog_manager_->force_create_dialog(dialog_id, "get_business_recipients_object", true);
-    CHECK(td->dialog_manager_->have_dialog_force(dialog_id, "get_business_recipients_object"));
-    chat_ids.push_back(td->dialog_manager_->get_chat_id_object(dialog_id, "businessRecipients"));
-  }
-  vector<int64> excluded_chat_ids;
-  for (auto user_id : excluded_user_ids_) {
-    DialogId dialog_id(user_id);
-    td->dialog_manager_->force_create_dialog(dialog_id, "get_business_recipients_object", true);
-    CHECK(td->dialog_manager_->have_dialog_force(dialog_id, "get_business_recipients_object"));
-    excluded_chat_ids.push_back(td->dialog_manager_->get_chat_id_object(dialog_id, "businessRecipients"));
-  }
-  return td_api::make_object<td_api::businessRecipients>(std::move(chat_ids), std::move(excluded_chat_ids),
-                                                         existing_chats_, new_chats_, contacts_, non_contacts_,
-                                                         exclude_selected_);
-}
-
-telegram_api::object_ptr<telegram_api::inputBusinessRecipients> BusinessRecipients::get_input_business_recipients(
-    Td *td) const {
-  vector<telegram_api::object_ptr<telegram_api::InputUser>> input_users;
-  for (auto user_id : user_ids_) {
-    auto r_input_user = td->user_manager_->get_input_user(user_id);
-    if (r_input_user.is_ok()) {
-      input_users.push_back(r_input_user.move_as_ok());
-    }
-  }
-  int32 flags = 0;
-  if (!input_users.empty()) {
-    flags |= telegram_api::inputBusinessRecipients::USERS_MASK;
-  }
-  return telegram_api::make_object<telegram_api::inputBusinessRecipients>(
-      flags, existing_chats_, new_chats_, contacts_, non_contacts_, exclude_selected_, std::move(input_users));
-}
-
-telegram_api::object_ptr<telegram_api::inputBusinessBotRecipients>
-BusinessRecipients::get_input_business_bot_recipients(Td *td) const {
-  vector<telegram_api::object_ptr<telegram_api::InputUser>> input_users;
-  for (auto user_id : user_ids_) {
-    auto r_input_user = td->user_manager_->get_input_user(user_id);
-    if (r_input_user.is_ok()) {
-      input_users.push_back(r_input_user.move_as_ok());
-    }
-  }
-  vector<telegram_api::object_ptr<telegram_api::InputUser>> excluded_input_users;
-  for (auto user_id : excluded_user_ids_) {
-    auto r_input_user = td->user_manager_->get_input_user(user_id);
-    if (r_input_user.is_ok()) {
-      excluded_input_users.push_back(r_input_user.move_as_ok());
-    }
-  }
-  int32 flags = 0;
-  if (!input_users.empty()) {
-    flags |= telegram_api::inputBusinessBotRecipients::USERS_MASK;
-  }
-  if (!excluded_input_users.empty()) {
-    flags |= telegram_api::inputBusinessBotRecipients::EXCLUDE_USERS_MASK;
-  }
-  return telegram_api::make_object<telegram_api::inputBusinessBotRecipients>(
-      flags, existing_chats_, new_chats_, contacts_, non_contacts_, exclude_selected_, std::move(input_users),
-      std::move(excluded_input_users));
-}
-
-void BusinessRecipients::add_dependencies(Dependencies &dependencies) const {
-  for (auto user_id : user_ids_) {
-    dependencies.add(user_id);
-  }
-  for (auto user_id : excluded_user_ids_) {
-    dependencies.add(user_id);
-  }
-}
-
-bool operator==(const BusinessRecipients &lhs, const BusinessRecipients &rhs) {
-  return lhs.user_ids_ == rhs.user_ids_ && lhs.excluded_user_ids_ == rhs.excluded_user_ids_ &&
-         lhs.existing_chats_ == rhs.existing_chats_ && lhs.new_chats_ == rhs.new_chats_ &&
-         lhs.contacts_ == rhs.contacts_ && lhs.non_contacts_ == rhs.non_contacts_ &&
-         lhs.exclude_selected_ == rhs.exclude_selected_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessRecipients &recipients) {
-  return string_builder << "received by " << (recipients.exclude_selected_ ? "all private chats except " : "")
-                        << recipients.user_ids_ << (recipients.contacts_ ? ", contacts " : "")
-                        << (recipients.non_contacts_ ? ", non-contacts " : "")
-                        << (recipients.existing_chats_ ? ", existing chats " : "")
-                        << (recipients.new_chats_ ? ", new chats " : "");
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessRecipients.h b/third-party/td/td/td/telegram/BusinessRecipients.h
deleted file mode 100644
index abb4ecd985..0000000000
--- a/third-party/td/td/td/telegram/BusinessRecipients.h
+++ /dev/null
@@ -1,67 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class BusinessRecipients {
- public:
-  BusinessRecipients() = default;
-
-  explicit BusinessRecipients(telegram_api::object_ptr<telegram_api::businessRecipients> recipients);
-
-  explicit BusinessRecipients(telegram_api::object_ptr<telegram_api::businessBotRecipients> recipients);
-
-  BusinessRecipients(td_api::object_ptr<td_api::businessRecipients> recipients, bool allow_excluded);
-
-  td_api::object_ptr<td_api::businessRecipients> get_business_recipients_object(Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::inputBusinessRecipients> get_input_business_recipients(Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::inputBusinessBotRecipients> get_input_business_bot_recipients(Td *td) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  vector<UserId> user_ids_;
-  vector<UserId> excluded_user_ids_;
-  bool existing_chats_ = false;
-  bool new_chats_ = false;
-  bool contacts_ = false;
-  bool non_contacts_ = false;
-  bool exclude_selected_ = false;
-
-  friend bool operator==(const BusinessRecipients &lhs, const BusinessRecipients &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessRecipients &recipients);
-};
-
-bool operator==(const BusinessRecipients &lhs, const BusinessRecipients &rhs);
-
-inline bool operator!=(const BusinessRecipients &lhs, const BusinessRecipients &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessRecipients &recipients);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessRecipients.hpp b/third-party/td/td/td/telegram/BusinessRecipients.hpp
deleted file mode 100644
index 6ce1c42977..0000000000
--- a/third-party/td/td/td/telegram/BusinessRecipients.hpp
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessRecipients.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessRecipients::store(StorerT &storer) const {
-  bool has_user_ids = !user_ids_.empty();
-  bool has_excluded_user_ids = !excluded_user_ids_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(existing_chats_);
-  STORE_FLAG(new_chats_);
-  STORE_FLAG(contacts_);
-  STORE_FLAG(non_contacts_);
-  STORE_FLAG(exclude_selected_);
-  STORE_FLAG(has_user_ids);
-  STORE_FLAG(has_excluded_user_ids);
-  END_STORE_FLAGS();
-  if (has_user_ids) {
-    td::store(user_ids_, storer);
-  }
-  if (has_excluded_user_ids) {
-    td::store(excluded_user_ids_, storer);
-  }
-}
-
-template <class ParserT>
-void BusinessRecipients::parse(ParserT &parser) {
-  bool has_user_ids;
-  bool has_excluded_user_ids;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(existing_chats_);
-  PARSE_FLAG(new_chats_);
-  PARSE_FLAG(contacts_);
-  PARSE_FLAG(non_contacts_);
-  PARSE_FLAG(exclude_selected_);
-  PARSE_FLAG(has_user_ids);
-  PARSE_FLAG(has_excluded_user_ids);
-  END_PARSE_FLAGS();
-  if (has_user_ids) {
-    td::parse(user_ids_, parser);
-  }
-  if (has_excluded_user_ids) {
-    td::parse(excluded_user_ids_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessWorkHours.cpp b/third-party/td/td/td/telegram/BusinessWorkHours.cpp
deleted file mode 100644
index 10e8fcd6b6..0000000000
--- a/third-party/td/td/td/telegram/BusinessWorkHours.cpp
+++ /dev/null
@@ -1,251 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/BusinessWorkHours.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TimeZoneManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-#include <algorithm>
-
-namespace td {
-
-td_api::object_ptr<td_api::businessOpeningHoursInterval>
-BusinessWorkHours::WorkHoursInterval::get_business_opening_hours_interval_object() const {
-  return td_api::make_object<td_api::businessOpeningHoursInterval>(start_minute_, end_minute_);
-}
-
-telegram_api::object_ptr<telegram_api::businessWeeklyOpen>
-BusinessWorkHours::WorkHoursInterval::get_input_business_weekly_open() const {
-  return telegram_api::make_object<telegram_api::businessWeeklyOpen>(start_minute_, end_minute_);
-}
-
-BusinessWorkHours::BusinessWorkHours(telegram_api::object_ptr<telegram_api::businessWorkHours> &&work_hours) {
-  if (work_hours != nullptr) {
-    work_hours_ = transform(work_hours->weekly_open_,
-                            [](const telegram_api::object_ptr<telegram_api::businessWeeklyOpen> &weekly_open) {
-                              return WorkHoursInterval(weekly_open->start_minute_, weekly_open->end_minute_);
-                            });
-    sanitize_work_hours();
-    time_zone_id_ = std::move(work_hours->timezone_id_);
-  }
-}
-
-BusinessWorkHours::BusinessWorkHours(td_api::object_ptr<td_api::businessOpeningHours> &&work_hours) {
-  if (work_hours != nullptr) {
-    work_hours_ = transform(work_hours->opening_hours_,
-                            [](const td_api::object_ptr<td_api::businessOpeningHoursInterval> &interval) {
-                              return WorkHoursInterval(interval->start_minute_, interval->end_minute_);
-                            });
-    sanitize_work_hours();
-    time_zone_id_ = std::move(work_hours->time_zone_id_);
-  }
-}
-
-bool BusinessWorkHours::is_empty() const {
-  return work_hours_.empty();
-}
-
-td_api::object_ptr<td_api::businessOpeningHours> BusinessWorkHours::get_business_opening_hours_object() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  vector<td_api::object_ptr<td_api::businessOpeningHoursInterval>> intervals;
-  for (const auto &work_hour : work_hours_) {
-    auto interval = work_hour;
-    while (interval.start_minute_ / (24 * 60) + 1 < interval.end_minute_ / (24 * 60)) {
-      auto prefix = interval;
-      prefix.end_minute_ = (interval.start_minute_ / (24 * 60) + 1) * 24 * 60;
-      interval.start_minute_ = prefix.end_minute_;
-      intervals.push_back(prefix.get_business_opening_hours_interval_object());
-    }
-    intervals.push_back(interval.get_business_opening_hours_interval_object());
-  }
-  return td_api::make_object<td_api::businessOpeningHours>(time_zone_id_, std::move(intervals));
-}
-
-td_api::object_ptr<td_api::businessOpeningHours> BusinessWorkHours::get_local_business_opening_hours_object(
-    Td *td) const {
-  if (is_empty() || td->auth_manager_->is_bot()) {
-    return nullptr;
-  }
-
-  auto offset = (td->time_zone_manager_->get_time_zone_offset(time_zone_id_) -
-                 narrow_cast<int32>(td->option_manager_->get_option_integer("utc_time_offset"))) /
-                60;
-  if (offset == 0) {
-    return get_business_opening_hours_object();
-  }
-
-  BusinessWorkHours local_work_hours;
-  for (auto &interval : work_hours_) {
-    auto start_minute = interval.start_minute_ - offset;
-    auto end_minute = interval.end_minute_ - offset;
-    if (start_minute < 0) {
-      if (end_minute <= 24 * 60) {
-        start_minute += 7 * 24 * 60;
-        end_minute += 7 * 24 * 60;
-      } else {
-        local_work_hours.work_hours_.emplace_back(start_minute + 7 * 24 * 60, 7 * 24 * 60);
-        start_minute = 0;
-      }
-    } else if (end_minute > 8 * 24 * 60) {
-      if (start_minute >= 7 * 24 * 60) {
-        start_minute -= 7 * 24 * 60;
-        end_minute -= 7 * 24 * 60;
-      } else {
-        local_work_hours.work_hours_.emplace_back(0, end_minute - 7 * 24 * 60);
-        end_minute = 7 * 24 * 60;
-      }
-    }
-    local_work_hours.work_hours_.emplace_back(start_minute, end_minute);
-  }
-  local_work_hours.sanitize_work_hours();
-  return local_work_hours.get_business_opening_hours_object();
-}
-
-telegram_api::object_ptr<telegram_api::businessWorkHours> BusinessWorkHours::get_input_business_work_hours() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return telegram_api::make_object<telegram_api::businessWorkHours>(
-      0, false, time_zone_id_, transform(work_hours_, [](const WorkHoursInterval &interval) {
-        return interval.get_input_business_weekly_open();
-      }));
-}
-
-int32 BusinessWorkHours::get_next_open_close_in(Td *td, int32 unix_time, bool is_close) const {
-  if (is_empty()) {
-    return 0;
-  }
-  auto get_week_time = [](int32 time) {
-    const auto week_length = 7 * 86400;
-    return ((time % week_length) + week_length) % week_length;
-  };
-  // the Unix time 0 was on a Thursday, the first Monday was at 4 * 86400
-  auto current_week_time = get_week_time(unix_time - 4 * 86400);
-  auto offset = td->time_zone_manager_->get_time_zone_offset(time_zone_id_);
-  int32 result = 1000000000;
-  for (auto &interval : work_hours_) {
-    auto change_week_time = get_week_time((is_close ? interval.end_minute_ : interval.start_minute_) * 60 - offset);
-    auto wait_time = change_week_time - current_week_time;
-    if (wait_time < 0) {
-      wait_time += 7 * 86400;
-    }
-    if (wait_time < result) {
-      result = wait_time;
-    }
-  }
-  return result;
-}
-
-void BusinessWorkHours::sanitize_work_hours() {
-  // remove invalid work hour intervals
-  td::remove_if(work_hours_, [](const WorkHoursInterval &interval) {
-    if (interval.start_minute_ >= interval.end_minute_ || interval.start_minute_ < 0 ||
-        interval.end_minute_ > 8 * 24 * 60) {
-      LOG(INFO) << "Ignore interval " << interval;
-      return true;
-    }
-    return false;
-  });
-
-  combine_work_hour_intervals();
-}
-
-void BusinessWorkHours::combine_work_hour_intervals() {
-  if (work_hours_.empty()) {
-    return;
-  }
-
-  // sort intervals
-  std::sort(work_hours_.begin(), work_hours_.end(), [](const WorkHoursInterval &lhs, const WorkHoursInterval &rhs) {
-    return lhs.start_minute_ < rhs.start_minute_;
-  });
-
-  // combine intersecting intervals
-  size_t j = 0;
-  for (size_t i = 1; i < work_hours_.size(); i++) {
-    CHECK(work_hours_[i].start_minute_ >= work_hours_[j].start_minute_);
-    if (work_hours_[i].start_minute_ <= work_hours_[j].end_minute_) {
-      work_hours_[j].end_minute_ = max(work_hours_[j].end_minute_, work_hours_[i].end_minute_);
-    } else {
-      work_hours_[++j] = work_hours_[i];
-    }
-  }
-  work_hours_.resize(j + 1);
-
-  // there must be no intervals longer than 1 week
-  for (auto &interval : work_hours_) {
-    interval.end_minute_ = min(interval.end_minute_, interval.start_minute_ + 7 * 24 * 60);
-  }
-
-  CHECK(!work_hours_.empty());
-
-  // if the last interval can be exactly merged with the first one, merge them
-  if (work_hours_[0].start_minute_ != 0 &&
-      work_hours_[0].start_minute_ + 7 * 24 * 60 == work_hours_.back().end_minute_) {
-    if (work_hours_.back().start_minute_ >= 7 * 24 * 60) {
-      work_hours_[0].start_minute_ = work_hours_.back().start_minute_ - 7 * 24 * 60;
-      work_hours_.pop_back();
-      CHECK(!work_hours_.empty());
-    } else {
-      work_hours_[0].start_minute_ = 0;
-      work_hours_.back().end_minute_ = 7 * 24 * 60;
-    }
-  }
-
-  // if there are intervals that intersect the first interval or start after the end of the week,
-  // then they must be normalized
-  auto max_minute = work_hours_[0].start_minute_ + 7 * 24 * 60;
-  if (work_hours_.back().end_minute_ > max_minute || work_hours_.back().start_minute_ >= 7 * 24 * 60) {
-    auto size = work_hours_.size();
-    for (size_t i = 0; i < size; i++) {
-      if (work_hours_[i].start_minute_ >= 7 * 24 * 60) {
-        work_hours_[i].start_minute_ -= 7 * 24 * 60;
-        work_hours_[i].end_minute_ -= 7 * 24 * 60;
-      } else if (work_hours_[i].end_minute_ > max_minute) {
-        work_hours_.emplace_back(max_minute - 7 * 24 * 60, work_hours_[i].end_minute_ - 7 * 24 * 60);
-        work_hours_[i].end_minute_ = max_minute;
-      }
-    }
-    LOG(INFO) << "Need to normalize " << work_hours_;
-    combine_work_hour_intervals();
-  }
-}
-
-bool operator==(const BusinessWorkHours::WorkHoursInterval &lhs, const BusinessWorkHours::WorkHoursInterval &rhs) {
-  return lhs.start_minute_ == rhs.start_minute_ && lhs.end_minute_ == rhs.end_minute_;
-}
-
-bool operator!=(const BusinessWorkHours::WorkHoursInterval &lhs, const BusinessWorkHours::WorkHoursInterval &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessWorkHours::WorkHoursInterval &interval) {
-  return string_builder << '[' << interval.start_minute_ << ',' << interval.end_minute_ << ')';
-}
-
-bool operator==(const BusinessWorkHours &lhs, const BusinessWorkHours &rhs) {
-  return lhs.work_hours_ == rhs.work_hours_ && lhs.time_zone_id_ == rhs.time_zone_id_;
-}
-
-bool operator!=(const BusinessWorkHours &lhs, const BusinessWorkHours &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessWorkHours &work_hours) {
-  return string_builder << "BusinessWorkHours[" << work_hours.work_hours_ << " in " << work_hours.time_zone_id_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessWorkHours.h b/third-party/td/td/td/telegram/BusinessWorkHours.h
deleted file mode 100644
index 7e4bb5e7d5..0000000000
--- a/third-party/td/td/td/telegram/BusinessWorkHours.h
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class BusinessWorkHours {
- public:
-  BusinessWorkHours() = default;
-
-  explicit BusinessWorkHours(telegram_api::object_ptr<telegram_api::businessWorkHours> &&work_hours);
-
-  explicit BusinessWorkHours(td_api::object_ptr<td_api::businessOpeningHours> &&work_hours);
-
-  bool is_empty() const;
-
-  td_api::object_ptr<td_api::businessOpeningHours> get_business_opening_hours_object() const;
-
-  td_api::object_ptr<td_api::businessOpeningHours> get_local_business_opening_hours_object(Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::businessWorkHours> get_input_business_work_hours() const;
-
-  int32 get_next_open_close_in(Td *td, int32 unix_time, bool is_close) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  struct WorkHoursInterval {
-    int32 start_minute_ = 0;
-    int32 end_minute_ = 0;
-
-    WorkHoursInterval() = default;
-    WorkHoursInterval(int32 start_minute, int32 end_minute) : start_minute_(start_minute), end_minute_(end_minute) {
-    }
-
-    td_api::object_ptr<td_api::businessOpeningHoursInterval> get_business_opening_hours_interval_object() const;
-
-    telegram_api::object_ptr<telegram_api::businessWeeklyOpen> get_input_business_weekly_open() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  void sanitize_work_hours();
-
-  void combine_work_hour_intervals();
-
-  friend bool operator==(const WorkHoursInterval &lhs, const WorkHoursInterval &rhs);
-  friend bool operator!=(const WorkHoursInterval &lhs, const WorkHoursInterval &rhs);
-
-  friend bool operator==(const BusinessWorkHours &lhs, const BusinessWorkHours &rhs);
-  friend bool operator!=(const BusinessWorkHours &lhs, const BusinessWorkHours &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const WorkHoursInterval &interval);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const BusinessWorkHours &work_hours);
-
-  vector<WorkHoursInterval> work_hours_;
-  string time_zone_id_;
-};
-
-bool operator==(const BusinessWorkHours::WorkHoursInterval &lhs, const BusinessWorkHours::WorkHoursInterval &rhs);
-bool operator!=(const BusinessWorkHours::WorkHoursInterval &lhs, const BusinessWorkHours::WorkHoursInterval &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessWorkHours::WorkHoursInterval &interval);
-
-bool operator==(const BusinessWorkHours &lhs, const BusinessWorkHours &rhs);
-bool operator!=(const BusinessWorkHours &lhs, const BusinessWorkHours &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const BusinessWorkHours &work_hours);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/BusinessWorkHours.hpp b/third-party/td/td/td/telegram/BusinessWorkHours.hpp
deleted file mode 100644
index add0a8b7c8..0000000000
--- a/third-party/td/td/td/telegram/BusinessWorkHours.hpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessWorkHours.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void BusinessWorkHours::WorkHoursInterval::store(StorerT &storer) const {
-  td::store(start_minute_, storer);
-  td::store(end_minute_, storer);
-}
-
-template <class ParserT>
-void BusinessWorkHours::WorkHoursInterval::parse(ParserT &parser) {
-  td::parse(start_minute_, parser);
-  td::parse(end_minute_, parser);
-}
-
-template <class StorerT>
-void BusinessWorkHours::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(work_hours_, storer);
-  td::store(time_zone_id_, storer);
-}
-
-template <class ParserT>
-void BusinessWorkHours::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(work_hours_, parser);
-  td::parse(time_zone_id_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallActor.cpp b/third-party/td/td/td/telegram/CallActor.cpp
deleted file mode 100644
index 1720f7deda..0000000000
--- a/third-party/td/td/td/telegram/CallActor.cpp
+++ /dev/null
@@ -1,1137 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/CallActor.h"
-
-#include "td/telegram/DhCache.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/bits.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-
-#include <tuple>
-
-namespace td {
-
-CallProtocol::CallProtocol(const telegram_api::phoneCallProtocol &protocol)
-    : udp_p2p(protocol.udp_p2p_)
-    , udp_reflector(protocol.udp_reflector_)
-    , min_layer(protocol.min_layer_)
-    , max_layer(protocol.max_layer_)
-    , library_versions(protocol.library_versions_) {
-}
-
-telegram_api::object_ptr<telegram_api::phoneCallProtocol> CallProtocol::get_input_phone_call_protocol() const {
-  return telegram_api::make_object<telegram_api::phoneCallProtocol>(0, udp_p2p, udp_reflector, min_layer, max_layer,
-                                                                    vector<string>(library_versions));
-}
-
-CallProtocol::CallProtocol(const td_api::callProtocol &protocol)
-    : udp_p2p(protocol.udp_p2p_)
-    , udp_reflector(protocol.udp_reflector_)
-    , min_layer(protocol.min_layer_)
-    , max_layer(protocol.max_layer_)
-    , library_versions(protocol.library_versions_) {
-}
-
-CallConnection::CallConnection(const telegram_api::PhoneConnection &connection) {
-  switch (connection.get_id()) {
-    case telegram_api::phoneConnection::ID: {
-      auto &conn = static_cast<const telegram_api::phoneConnection &>(connection);
-      type = Type::Telegram;
-      id = conn.id_;
-      ip = conn.ip_;
-      ipv6 = conn.ipv6_;
-      port = conn.port_;
-      peer_tag = conn.peer_tag_.as_slice().str();
-      is_tcp = conn.tcp_;
-      break;
-    }
-    case telegram_api::phoneConnectionWebrtc::ID: {
-      auto &conn = static_cast<const telegram_api::phoneConnectionWebrtc &>(connection);
-      type = Type::Webrtc;
-      id = conn.id_;
-      ip = conn.ip_;
-      ipv6 = conn.ipv6_;
-      port = conn.port_;
-      username = conn.username_;
-      password = conn.password_;
-      supports_turn = conn.turn_;
-      supports_stun = conn.stun_;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-td_api::object_ptr<td_api::callProtocol> CallProtocol::get_call_protocol_object() const {
-  return td_api::make_object<td_api::callProtocol>(udp_p2p, udp_reflector, min_layer, max_layer,
-                                                   vector<string>(library_versions));
-}
-
-tl_object_ptr<td_api::callServer> CallConnection::get_call_server_object() const {
-  auto server_type = [&]() -> tl_object_ptr<td_api::CallServerType> {
-    switch (type) {
-      case Type::Telegram:
-        return make_tl_object<td_api::callServerTypeTelegramReflector>(peer_tag, is_tcp);
-      case Type::Webrtc:
-        return make_tl_object<td_api::callServerTypeWebrtc>(username, password, supports_turn, supports_stun);
-      default:
-        UNREACHABLE();
-        return nullptr;
-    }
-  }();
-  return make_tl_object<td_api::callServer>(id, ip, ipv6, port, std::move(server_type));
-}
-
-tl_object_ptr<td_api::CallState> CallState::get_call_state_object() const {
-  switch (type) {
-    case Type::Pending:
-      return make_tl_object<td_api::callStatePending>(is_created, is_received);
-    case Type::ExchangingKey:
-      return make_tl_object<td_api::callStateExchangingKeys>();
-    case Type::Ready: {
-      auto call_connections = transform(connections, [](auto &c) { return c.get_call_server_object(); });
-      return make_tl_object<td_api::callStateReady>(protocol.get_call_protocol_object(), std::move(call_connections),
-                                                    config, key, vector<string>(emojis_fingerprint), allow_p2p,
-                                                    custom_parameters);
-    }
-    case Type::HangingUp:
-      return make_tl_object<td_api::callStateHangingUp>();
-    case Type::Discarded:
-      return make_tl_object<td_api::callStateDiscarded>(get_call_discard_reason_object(discard_reason), need_rating,
-                                                        need_debug_information, need_log);
-    case Type::Error:
-      CHECK(error.is_error());
-      return make_tl_object<td_api::callStateError>(make_tl_object<td_api::error>(error.code(), error.message().str()));
-    case Type::Empty:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-static StringBuilder &operator<<(StringBuilder &string_builder, const CallState::Type &type) {
-  switch (type) {
-    case CallState::Type::Empty:
-      return string_builder << "Empty";
-    case CallState::Type::Pending:
-      return string_builder << "Pending";
-    case CallState::Type::ExchangingKey:
-      return string_builder << "ExchangingKey";
-    case CallState::Type::Ready:
-      return string_builder << "Ready";
-    case CallState::Type::HangingUp:
-      return string_builder << "HangingUp";
-    case CallState::Type::Discarded:
-      return string_builder << "Discarded";
-    case CallState::Type::Error:
-      return string_builder << "Error";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const CallActor::State &state) {
-  string_builder << "state ";
-  switch (state) {
-    case CallActor::State::Empty:
-      return string_builder << "Empty";
-    case CallActor::State::SendRequestQuery:
-      return string_builder << "SendRequestQuery";
-    case CallActor::State::WaitRequestResult:
-      return string_builder << "WaitRequestResult";
-    case CallActor::State::SendAcceptQuery:
-      return string_builder << "SendAcceptQuery";
-    case CallActor::State::WaitAcceptResult:
-      return string_builder << "WaitAcceptResult";
-    case CallActor::State::SendConfirmQuery:
-      return string_builder << "SendConfirmQuery";
-    case CallActor::State::WaitConfirmResult:
-      return string_builder << "WaitConfirmResult";
-    case CallActor::State::Ready:
-      return string_builder << "Ready";
-    case CallActor::State::SendDiscardQuery:
-      return string_builder << "SendDiscardQuery";
-    case CallActor::State::WaitDiscardResult:
-      return string_builder << "WaitDiscardResult";
-    case CallActor::State::Discarded:
-      return string_builder << "Discarded";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-CallActor::CallActor(Td *td, CallId call_id, ActorShared<> parent, Promise<int64> promise)
-    : td_(td), parent_(std::move(parent)), call_id_promise_(std::move(promise)), local_call_id_(call_id) {
-}
-
-void CallActor::create_call(UserId user_id, CallProtocol &&protocol, bool is_video, GroupCallId group_call_id,
-                            Promise<CallId> &&promise) {
-  CHECK(state_ == State::Empty);
-  state_ = State::SendRequestQuery;
-  is_outgoing_ = true;
-  is_video_ = is_video;
-  user_id_ = user_id;
-  auto r_input_group_call_id = td_->group_call_manager_->get_input_group_call_id(group_call_id);
-  if (r_input_group_call_id.is_ok()) {
-    input_group_call_id_ = r_input_group_call_id.ok();
-  }
-  call_state_.protocol = std::move(protocol);
-  call_state_.type = CallState::Type::Pending;
-  call_state_.is_received = false;
-  call_state_need_flush_ = true;
-  loop();
-  promise.set_value(CallId(local_call_id_));
-}
-
-void CallActor::accept_call(CallProtocol &&protocol, Promise<Unit> promise) {
-  if (state_ != State::SendAcceptQuery) {
-    return promise.set_error(Status::Error(400, "Unexpected acceptCall"));
-  }
-  is_accepted_ = true;
-  call_state_.protocol = std::move(protocol);
-  promise.set_value(Unit());
-  loop();
-}
-
-void CallActor::update_call_signaling_data(string data) {
-  if (call_state_.type != CallState::Type::Ready) {
-    return;
-  }
-
-  auto update = td_api::make_object<td_api::updateNewCallSignalingData>();
-  update->call_id_ = local_call_id_.get();
-  update->data_ = std::move(data);
-  send_closure(G()->td(), &Td::send_update, std::move(update));
-}
-
-void CallActor::send_call_signaling_data(string &&data, Promise<Unit> promise) {
-  if (call_state_.type != CallState::Type::Ready) {
-    return promise.set_error(Status::Error(400, "Call is not active"));
-  }
-
-  auto query = G()->net_query_creator().create(
-      telegram_api::phone_sendSignalingData(get_input_phone_call("send_call_signaling_data"), BufferSlice(data)));
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_net_query) mutable {
-                      auto res = fetch_result<telegram_api::phone_sendSignalingData>(std::move(r_net_query));
-                      if (res.is_error()) {
-                        promise.set_error(res.move_as_error());
-                      } else {
-                        promise.set_value(Unit());
-                      }
-                    }));
-}
-
-void CallActor::discard_call(bool is_disconnected, int32 duration, bool is_video, int64 connection_id,
-                             Promise<Unit> promise) {
-  promise.set_value(Unit());
-  if (state_ == State::Discarded || state_ == State::WaitDiscardResult || state_ == State::SendDiscardQuery) {
-    return;
-  }
-  is_video_ |= is_video;
-
-  if (state_ == State::WaitRequestResult && !request_query_ref_.empty()) {
-    LOG(INFO) << "Cancel request call query";
-    cancel_query(request_query_ref_);
-  }
-
-  switch (call_state_.type) {
-    case CallState::Type::Empty:
-    case CallState::Type::Pending:
-      if (is_outgoing_) {
-        call_state_.discard_reason.type_ = CallDiscardReason::Type::Missed;
-      } else {
-        call_state_.discard_reason.type_ = CallDiscardReason::Type::Declined;
-      }
-      break;
-    case CallState::Type::ExchangingKey:
-      call_state_.discard_reason.type_ =
-          is_disconnected ? CallDiscardReason::Type::Disconnected : CallDiscardReason::Type::HungUp;
-      break;
-    case CallState::Type::Ready:
-      call_state_.discard_reason.type_ =
-          is_disconnected ? CallDiscardReason::Type::Disconnected : CallDiscardReason::Type::HungUp;
-      duration_ = duration;
-      connection_id_ = connection_id;
-      break;
-    case CallState::Type::HangingUp:
-    case CallState::Type::Discarded:
-    case CallState::Type::Error:
-    default:
-      UNREACHABLE();
-      return;
-  }
-
-  call_state_.type = CallState::Type::HangingUp;
-  call_state_need_flush_ = true;
-
-  state_ = State::SendDiscardQuery;
-  loop();
-}
-
-void CallActor::rate_call(int32 rating, string comment, vector<td_api::object_ptr<td_api::CallProblem>> &&problems,
-                          Promise<Unit> promise) {
-  if (!call_state_.need_rating) {
-    return promise.set_error(Status::Error(400, "Unexpected sendCallRating"));
-  }
-  promise.set_value(Unit());
-
-  if (rating == 5) {
-    comment.clear();
-  }
-
-  FlatHashSet<string> tags;
-  for (auto &problem : problems) {
-    if (problem == nullptr) {
-      continue;
-    }
-
-    const char *tag = [problem_id = problem->get_id()] {
-      switch (problem_id) {
-        case td_api::callProblemEcho::ID:
-          return "echo";
-        case td_api::callProblemNoise::ID:
-          return "noise";
-        case td_api::callProblemInterruptions::ID:
-          return "interruptions";
-        case td_api::callProblemDistortedSpeech::ID:
-          return "distorted_speech";
-        case td_api::callProblemSilentLocal::ID:
-          return "silent_local";
-        case td_api::callProblemSilentRemote::ID:
-          return "silent_remote";
-        case td_api::callProblemDropped::ID:
-          return "dropped";
-        case td_api::callProblemDistortedVideo::ID:
-          return "distorted_video";
-        case td_api::callProblemPixelatedVideo::ID:
-          return "pixelated_video";
-        default:
-          UNREACHABLE();
-          return "";
-      }
-    }();
-    if (tags.insert(tag).second) {
-      if (!comment.empty()) {
-        comment += ' ';
-      }
-      comment += '#';
-      comment += tag;
-    }
-  }
-
-  auto tl_query = telegram_api::phone_setCallRating(0, false /*ignored*/, get_input_phone_call("rate_call"), rating,
-                                                    std::move(comment));
-  auto query = G()->net_query_creator().create(tl_query);
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this)](Result<NetQueryPtr> r_net_query) {
-                      send_closure(actor_id, &CallActor::on_set_rating_query_result, std::move(r_net_query));
-                    }));
-  loop();
-}
-
-void CallActor::on_set_rating_query_result(Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_setCallRating>(std::move(r_net_query));
-  if (res.is_error()) {
-    return on_error(res.move_as_error());
-  }
-  if (call_state_.need_rating) {
-    call_state_.need_rating = false;
-    call_state_need_flush_ = true;
-    loop();
-  }
-  send_closure(G()->updates_manager(), &UpdatesManager::on_get_updates, res.move_as_ok(), Promise<Unit>());
-}
-
-void CallActor::send_call_debug_information(string data, Promise<Unit> promise) {
-  if (!call_state_.need_debug_information) {
-    return promise.set_error(Status::Error(400, "Unexpected sendCallDebugInformation"));
-  }
-  promise.set_value(Unit());
-  auto tl_query = telegram_api::phone_saveCallDebug(get_input_phone_call("send_call_debug_information"),
-                                                    make_tl_object<telegram_api::dataJSON>(std::move(data)));
-  auto query = G()->net_query_creator().create(tl_query);
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this)](Result<NetQueryPtr> r_net_query) {
-                      send_closure(actor_id, &CallActor::on_save_debug_query_result, std::move(r_net_query));
-                    }));
-  loop();
-}
-
-void CallActor::on_save_debug_query_result(Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_saveCallDebug>(std::move(r_net_query));
-  if (res.is_error()) {
-    return on_error(res.move_as_error());
-  }
-  if (!res.ok() && !call_state_.need_log) {
-    call_state_.need_log = true;
-    call_state_need_flush_ = true;
-  }
-  if (call_state_.need_debug_information) {
-    call_state_.need_debug_information = false;
-    call_state_need_flush_ = true;
-  }
-  loop();
-}
-
-void CallActor::send_call_log(td_api::object_ptr<td_api::InputFile> log_file, Promise<Unit> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (!call_state_.need_log) {
-    return promise.set_error(Status::Error(400, "Unexpected sendCallLog"));
-  }
-
-  auto *file_manager = td_->file_manager_.get();
-  TRY_RESULT_PROMISE(promise, file_id,
-                     file_manager->get_input_file_id(FileType::CallLog, log_file, DialogId(), false, false));
-
-  FileView file_view = file_manager->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return promise.set_error(Status::Error(400, "Can't use encrypted file"));
-  }
-  if (!file_view.has_full_local_location() && !file_view.has_generate_location()) {
-    return promise.set_error(Status::Error(400, "Need local or generate location to upload call log"));
-  }
-
-  upload_log_file({file_id, FileManager::get_internal_upload_id()}, std::move(promise));
-}
-
-void CallActor::upload_log_file(FileUploadId file_upload_id, Promise<Unit> &&promise) {
-  LOG(INFO) << "Ask to upload call log " << file_upload_id;
-
-  class UploadLogFileCallback final : public FileManager::UploadCallback {
-    ActorId<CallActor> actor_id_;
-    Promise<Unit> promise_;
-
-   public:
-    UploadLogFileCallback(ActorId<CallActor> actor_id, Promise<Unit> &&promise)
-        : actor_id_(actor_id), promise_(std::move(promise)) {
-    }
-
-    void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-      send_closure_later(actor_id_, &CallActor::on_upload_log_file, file_upload_id, std::move(promise_),
-                         std::move(input_file));
-    }
-
-    void on_upload_error(FileUploadId file_upload_id, Status error) final {
-      send_closure_later(actor_id_, &CallActor::on_upload_log_file_error, file_upload_id, std::move(promise_),
-                         std::move(error));
-    }
-  };
-
-  send_closure(G()->file_manager(), &FileManager::upload, file_upload_id,
-               std::make_shared<UploadLogFileCallback>(actor_id(this), std::move(promise)), 1, 0);
-}
-
-void CallActor::on_upload_log_file(FileUploadId file_upload_id, Promise<Unit> &&promise,
-                                   telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Log " << file_upload_id << " has been uploaded";
-
-  do_upload_log_file(file_upload_id, std::move(input_file), std::move(promise));
-}
-
-void CallActor::on_upload_log_file_error(FileUploadId file_upload_id, Promise<Unit> &&promise, Status status) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(WARNING) << "Log " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  promise.set_error(Status::Error(status.code() > 0 ? status.code() : 500,
-                                  status.message()));  // TODO CHECK that status has always a code
-}
-
-void CallActor::do_upload_log_file(FileUploadId file_upload_id,
-                                   telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-                                   Promise<Unit> &&promise) {
-  if (input_file == nullptr) {
-    return promise.set_error(Status::Error(500, "Failed to reupload call log"));
-  }
-
-  auto tl_query = telegram_api::phone_saveCallLog(get_input_phone_call("do_upload_log_file"), std::move(input_file));
-  send_with_promise(G()->net_query_creator().create(tl_query),
-                    PromiseCreator::lambda([actor_id = actor_id(this), file_upload_id,
-                                            promise = std::move(promise)](Result<NetQueryPtr> r_net_query) mutable {
-                      send_closure(actor_id, &CallActor::on_save_log_query_result, file_upload_id, std::move(promise),
-                                   std::move(r_net_query));
-                    }));
-  loop();
-}
-
-void CallActor::on_save_log_query_result(FileUploadId file_upload_id, Promise<Unit> promise,
-                                         Result<NetQueryPtr> r_net_query) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  send_closure(G()->file_manager(), &FileManager::delete_partial_remote_location, file_upload_id);
-
-  auto res = fetch_result<telegram_api::phone_saveCallLog>(std::move(r_net_query));
-  if (res.is_error()) {
-    auto error = res.move_as_error();
-    auto bad_parts = FileManager::get_missing_file_parts(error);
-    if (!bad_parts.empty()) {
-      // TODO on_upload_log_file_parts_missing(file_upload_id, std::move(bad_parts));
-      // return;
-    }
-    return promise.set_error(std::move(error));
-  }
-  if (call_state_.need_log) {
-    call_state_.need_log = false;
-    call_state_need_flush_ = true;
-  }
-  loop();
-  promise.set_value(Unit());
-}
-
-void CallActor::create_conference_call(Promise<Unit> promise) {
-  if (input_group_call_id_.is_valid()) {
-    return promise.set_value(Unit());
-  }
-  auto tl_query = telegram_api::phone_createConferenceCall(get_input_phone_call("create_conference_call"),
-                                                           call_state_.key_fingerprint);
-  auto query = G()->net_query_creator().create(tl_query);
-  send_with_promise(std::move(query), PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                                                 Result<NetQueryPtr> r_net_query) mutable {
-                      send_closure(actor_id, &CallActor::on_create_conference_call_result, std::move(promise),
-                                   std::move(r_net_query));
-                    }));
-  loop();
-}
-
-void CallActor::on_create_conference_call_result(Promise<Unit> promise, Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_createConferenceCall>(std::move(r_net_query));
-  if (res.is_error()) {
-    return promise.set_error(res.move_as_error());
-  }
-  update_call_inner(res.move_as_ok());
-  if (!input_group_call_id_.is_valid()) {
-    return promise.set_error(Status::Error(500, "Receive invalid response"));
-  }
-  promise.set_value(Unit());
-}
-
-void CallActor::update_call(tl_object_ptr<telegram_api::PhoneCall> call) {
-  LOG(INFO) << "Receive " << to_string(call);
-  auto status = [&] {
-    switch (call->get_id()) {
-      case telegram_api::phoneCallEmpty::ID:
-        return do_update_call(static_cast<const telegram_api::phoneCallEmpty &>(*call));
-      case telegram_api::phoneCallWaiting::ID:
-        return do_update_call(static_cast<const telegram_api::phoneCallWaiting &>(*call));
-      case telegram_api::phoneCallRequested::ID:
-        return do_update_call(static_cast<const telegram_api::phoneCallRequested &>(*call));
-      case telegram_api::phoneCallAccepted::ID:
-        return do_update_call(static_cast<const telegram_api::phoneCallAccepted &>(*call));
-      case telegram_api::phoneCall::ID:
-        return do_update_call(static_cast<const telegram_api::phoneCall &>(*call));
-      case telegram_api::phoneCallDiscarded::ID:
-        return do_update_call(static_cast<const telegram_api::phoneCallDiscarded &>(*call));
-      default:
-        UNREACHABLE();
-        return Status::OK();
-    }
-  }();
-  if (status.is_error()) {
-    LOG(INFO) << "Receive error " << status << ", while handling update " << to_string(call);
-    on_error(std::move(status));
-  }
-  loop();
-}
-
-void CallActor::update_call_inner(tl_object_ptr<telegram_api::phone_phoneCall> call) {
-  LOG(INFO) << "Update call with " << to_string(call);
-  send_closure(G()->user_manager(), &UserManager::on_get_users, std::move(call->users_), "UpdatePhoneCall");
-  update_call(std::move(call->phone_call_));
-}
-
-Status CallActor::do_update_call(const telegram_api::phoneCallEmpty &call) {
-  return Status::Error(400, "Call is finished");
-}
-
-Status CallActor::do_update_call(const telegram_api::phoneCallWaiting &call) {
-  if (state_ != State::WaitRequestResult && state_ != State::WaitAcceptResult) {
-    return Status::OK();
-  }
-
-  if (state_ == State::WaitAcceptResult) {
-    LOG(DEBUG) << "Do update call to Waiting";
-    on_begin_exchanging_key();
-  } else {
-    LOG(DEBUG) << "Do update call to Waiting";
-    if ((call.flags_ & telegram_api::phoneCallWaiting::RECEIVE_DATE_MASK) != 0) {
-      if (!call_state_.is_received) {
-        call_state_.is_received = true;
-        call_state_need_flush_ = true;
-      }
-      int64 call_ring_timeout_ms = G()->get_option_integer("call_ring_timeout_ms", 90000);
-      set_timeout_in(static_cast<double>(call_ring_timeout_ms) * 0.001);
-    }
-  }
-
-  call_id_ = call.id_;
-  call_access_hash_ = call.access_hash_;
-  is_call_id_inited_ = true;
-  call_admin_user_id_ = UserId(call.admin_id_);
-  update_conference_call(call.conference_call_);
-  on_get_call_id();
-
-  if (call.video_ && !is_video_) {
-    is_video_ = true;
-    call_state_need_flush_ = true;
-  }
-  if (!call_state_.is_created) {
-    call_state_.is_created = true;
-    call_state_need_flush_ = true;
-  }
-
-  return Status::OK();
-}
-
-Status CallActor::do_update_call(const telegram_api::phoneCallRequested &call) {
-  if (state_ != State::Empty) {
-    return Status::OK();
-  }
-  LOG(DEBUG) << "Do update call to Requested";
-  call_id_ = call.id_;
-  call_access_hash_ = call.access_hash_;
-  is_call_id_inited_ = true;
-  update_conference_call(call.conference_call_);
-  is_video_ |= call.video_;
-  call_admin_user_id_ = UserId(call.admin_id_);
-  on_get_call_id();
-
-  dh_handshake_.set_g_a_hash(call.g_a_hash_.as_slice());
-  state_ = State::SendAcceptQuery;
-
-  call_state_.type = CallState::Type::Pending;
-  call_state_.is_created = true;
-  call_state_.is_received = true;
-  call_state_need_flush_ = true;
-
-  send_received_query();
-  return Status::OK();
-}
-
-tl_object_ptr<telegram_api::inputPhoneCall> CallActor::get_input_phone_call(const char *source) {
-  LOG_CHECK(is_call_id_inited_) << source;
-  return make_tl_object<telegram_api::inputPhoneCall>(call_id_, call_access_hash_);
-}
-
-Status CallActor::do_update_call(const telegram_api::phoneCallAccepted &call) {
-  if (state_ != State::WaitRequestResult) {
-    return Status::OK();
-  }
-
-  LOG(DEBUG) << "Do update call to Accepted";
-  if (!is_call_id_inited_) {
-    call_id_ = call.id_;
-    call_access_hash_ = call.access_hash_;
-    is_call_id_inited_ = true;
-    call_admin_user_id_ = UserId(call.admin_id_);
-    on_get_call_id();
-  }
-  update_conference_call(call.conference_call_);
-  is_video_ |= call.video_;
-  dh_handshake_.set_g_a(call.g_b_.as_slice());
-  TRY_STATUS(dh_handshake_.run_checks(true, DhCache::instance()));
-  std::tie(call_state_.key_fingerprint, call_state_.key) = dh_handshake_.gen_key();
-  state_ = State::SendConfirmQuery;
-  on_begin_exchanging_key();
-  return Status::OK();
-}
-
-void CallActor::on_begin_exchanging_key() {
-  call_state_.type = CallState::Type::ExchangingKey;
-  call_state_need_flush_ = true;
-  int64 call_receive_timeout_ms = G()->get_option_integer("call_receive_timeout_ms", 20000);
-  auto timeout = static_cast<double>(call_receive_timeout_ms) * 0.001;
-  LOG(INFO) << "Set call timeout to " << timeout;
-  set_timeout_in(timeout);
-}
-
-void CallActor::update_conference_call(const telegram_api::object_ptr<telegram_api::inputGroupCall> &conference_call) {
-  InputGroupCallId input_group_call_id;
-  if (conference_call != nullptr) {
-    input_group_call_id = InputGroupCallId(conference_call);
-  }
-  if (input_group_call_id_ != input_group_call_id) {
-    input_group_call_id_ = input_group_call_id;
-    call_state_need_flush_ = true;
-  }
-}
-
-Status CallActor::do_update_call(const telegram_api::phoneCall &call) {
-  if (state_ != State::WaitAcceptResult && state_ != State::WaitConfirmResult) {
-    if (state_ == State::Ready) {
-      update_conference_call(call.conference_call_);
-    }
-    return Status::OK();
-  }
-  cancel_timeout();
-
-  LOG(DEBUG) << "Do update call to Ready from " << state_;
-  if (state_ == State::WaitAcceptResult) {
-    dh_handshake_.set_g_a(call.g_a_or_b_.as_slice());
-    TRY_STATUS(dh_handshake_.run_checks(true, DhCache::instance()));
-    std::tie(call_state_.key_fingerprint, call_state_.key) = dh_handshake_.gen_key();
-  }
-  if (call_state_.key_fingerprint != call.key_fingerprint_) {
-    return Status::Error(400, "Key fingerprints mismatch");
-  }
-
-  state_ = State::Ready;
-  is_video_ |= call.video_;
-  call_state_.emojis_fingerprint =
-      get_emojis_fingerprint(call_state_.key, is_outgoing_ ? dh_handshake_.get_g_b() : dh_handshake_.get_g_a());
-
-  for (auto &connection : call.connections_) {
-    call_state_.connections.emplace_back(*connection);
-  }
-  call_state_.protocol = CallProtocol(*call.protocol_);
-  call_state_.allow_p2p = call.p2p_allowed_;
-  if (call.custom_parameters_ != nullptr) {
-    call_state_.custom_parameters = std::move(call.custom_parameters_->data_);
-  }
-  update_conference_call(call.conference_call_);
-  call_state_.type = CallState::Type::Ready;
-  call_state_need_flush_ = true;
-
-  return Status::OK();
-}
-
-Status CallActor::do_update_call(const telegram_api::phoneCallDiscarded &call) {
-  LOG(DEBUG) << "Do update call to Discarded";
-  update_conference_call(call.conference_call_);
-  on_call_discarded(get_call_discard_reason(call.reason_), call.need_rating_, call.need_debug_, call.video_);
-  return Status::OK();
-}
-
-void CallActor::on_get_call_id() {
-  if (call_id_promise_) {
-    int64 call_id = call_id_;
-    call_id_promise_.set_value(std::move(call_id));
-    call_id_promise_ = {};
-  }
-}
-
-void CallActor::on_call_discarded(CallDiscardReason reason, bool need_rating, bool need_debug, bool is_video) {
-  if (state_ != State::Discarded) {
-    state_ = State::Discarded;
-    call_state_need_flush_ = true;
-  }
-  if (is_video && !is_video_) {
-    is_video_ = true;
-    call_state_need_flush_ = true;
-  }
-  if (call_state_.discard_reason != reason && reason.type_ != CallDiscardReason::Type::Empty) {
-    call_state_.discard_reason = std::move(reason);
-    call_state_need_flush_ = true;
-  }
-  if (call_state_.type != CallState::Type::Error) {
-    if (call_state_.need_rating != need_rating || call_state_.need_debug_information != need_debug ||
-        call_state_.type != CallState::Type::Discarded) {
-      call_state_.need_rating = need_rating;
-      call_state_.need_debug_information = need_debug;
-      call_state_.type = CallState::Type::Discarded;
-      call_state_need_flush_ = true;
-    }
-  }
-}
-
-bool CallActor::load_dh_config() {
-  if (dh_config_ready_) {
-    LOG(DEBUG) << "Dh config is ready";
-    return true;
-  }
-  if (!dh_config_query_sent_) {
-    dh_config_query_sent_ = true;
-    do_load_dh_config(PromiseCreator::lambda([actor_id = actor_id(this)](Result<std::shared_ptr<DhConfig>> dh_config) {
-      send_closure(actor_id, &CallActor::on_dh_config, std::move(dh_config), false);
-    }));
-  }
-  LOG(INFO) << "Dh config is not loaded";
-  return false;
-}
-
-void CallActor::on_error(Status status) {
-  CHECK(status.is_error());
-  LOG(INFO) << "Receive error " << status;
-
-  if (state_ == State::WaitRequestResult && !request_query_ref_.empty()) {
-    LOG(INFO) << "Cancel request call query";
-    cancel_query(request_query_ref_);
-  }
-  if (state_ == State::WaitDiscardResult || state_ == State::Discarded) {
-    state_ = State::Discarded;
-  } else {
-    state_ = State::SendDiscardQuery;
-    call_state_.discard_reason.type_ = call_state_.type == CallState::Type::Pending
-                                           ? CallDiscardReason::Type::Missed
-                                           : CallDiscardReason::Type::Disconnected;
-  }
-
-  call_state_.type = CallState::Type::Error;
-  call_state_.error = std::move(status);
-  call_state_need_flush_ = true;
-}
-
-void CallActor::on_dh_config(Result<std::shared_ptr<DhConfig>> r_dh_config, bool dummy) {
-  if (r_dh_config.is_error()) {
-    return on_error(r_dh_config.move_as_error());
-  }
-
-  dh_config_ = r_dh_config.move_as_ok();
-  auto check_result = mtproto::DhHandshake::check_config(dh_config_->g, dh_config_->prime, DhCache::instance());
-  if (check_result.is_error()) {
-    return on_error(std::move(check_result));
-  }
-
-  dh_config_ready_ = true;
-  yield();
-}
-
-void CallActor::do_load_dh_config(Promise<std::shared_ptr<DhConfig>> promise) {
-  //TODO: move to external actor
-  auto dh_config = G()->get_dh_config();
-  int32 version = 0;
-  if (dh_config) {
-    version = dh_config->version;
-  }
-  int random_length = 0;
-  telegram_api::messages_getDhConfig tl_query(version, random_length);
-  auto query = G()->net_query_creator().create(tl_query);
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this), old_dh_config = std::move(dh_config),
-                                            promise = std::move(promise)](Result<NetQueryPtr> result_query) mutable {
-                      promise.set_result([&]() -> Result<std::shared_ptr<DhConfig>> {
-                        TRY_RESULT(query, std::move(result_query));
-                        TRY_RESULT(new_dh_config, fetch_result<telegram_api::messages_getDhConfig>(std::move(query)));
-                        if (new_dh_config->get_id() == telegram_api::messages_dhConfig::ID) {
-                          auto dh = move_tl_object_as<telegram_api::messages_dhConfig>(new_dh_config);
-                          auto dh_config = std::make_shared<DhConfig>();
-                          dh_config->version = dh->version_;
-                          dh_config->prime = dh->p_.as_slice().str();
-                          dh_config->g = dh->g_;
-                          Random::add_seed(dh->random_.as_slice());
-                          G()->set_dh_config(dh_config);
-                          return std::move(dh_config);
-                        } else if (new_dh_config->get_id() == telegram_api::messages_dhConfigNotModified::ID) {
-                          auto dh = move_tl_object_as<telegram_api::messages_dhConfigNotModified>(new_dh_config);
-                          Random::add_seed(dh->random_.as_slice());
-                        }
-                        if (old_dh_config) {
-                          return std::move(old_dh_config);
-                        }
-                        return Status::Error(500, "Can't load DhConfig");
-                      }());
-                    }));
-}
-
-void CallActor::send_received_query() {
-  auto tl_query = telegram_api::phone_receivedCall(get_input_phone_call("send_received_query"));
-  auto query = G()->net_query_creator().create(tl_query);
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this)](Result<NetQueryPtr> r_net_query) {
-                      send_closure(actor_id, &CallActor::on_received_query_result, std::move(r_net_query));
-                    }));
-}
-
-void CallActor::on_received_query_result(Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_receivedCall>(std::move(r_net_query));
-  if (res.is_error()) {
-    return on_error(res.move_as_error());
-  }
-}
-
-void CallActor::try_send_request_query() {
-  if (G()->close_flag()) {
-    return;
-  }
-  LOG(INFO) << "Trying to send request query";
-  if (!load_dh_config()) {
-    return;
-  }
-  dh_handshake_.set_config(dh_config_->g, dh_config_->prime);
-  auto r_input_user = td_->user_manager_->get_input_user(user_id_);
-  if (r_input_user.is_error()) {
-    return on_error(r_input_user.move_as_error());
-  }
-  int32 flags = 0;
-  if (is_video_) {
-    flags |= telegram_api::phone_requestCall::VIDEO_MASK;
-  }
-  telegram_api::object_ptr<telegram_api::inputGroupCall> input_group_call;
-  if (input_group_call_id_.is_valid()) {
-    flags |= telegram_api::phone_requestCall::CONFERENCE_CALL_MASK;
-    input_group_call = input_group_call_id_.get_input_group_call();
-  }
-  auto tl_query = telegram_api::phone_requestCall(
-      flags, false /*ignored*/, r_input_user.move_as_ok(), std::move(input_group_call), Random::secure_int32(),
-      BufferSlice(dh_handshake_.get_g_b_hash()), call_state_.protocol.get_input_phone_call_protocol());
-  auto query = G()->net_query_creator().create(tl_query);
-  state_ = State::WaitRequestResult;
-  int64 call_receive_timeout_ms = G()->get_option_integer("call_receive_timeout_ms", 20000);
-  auto timeout = static_cast<double>(call_receive_timeout_ms) * 0.001;
-  LOG(INFO) << "Set call timeout to " << timeout;
-  set_timeout_in(timeout);
-  query->total_timeout_limit_ =
-      static_cast<int32>(clamp(call_receive_timeout_ms + 999, static_cast<int64>(10000), static_cast<int64>(100000))) /
-      1000;
-  request_query_ref_ = query.get_weak();
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this)](Result<NetQueryPtr> r_net_query) {
-                      send_closure(actor_id, &CallActor::on_request_query_result, std::move(r_net_query));
-                    }));
-}
-
-void CallActor::on_request_query_result(Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_requestCall>(std::move(r_net_query));
-  if (res.is_error()) {
-    return on_error(res.move_as_error());
-  }
-  update_call_inner(res.move_as_ok());
-}
-
-//phone.acceptCall#3bd2b4a0 peer:InputPhoneCall g_b:bytes protocol:PhoneCallProtocol = phone.PhoneCall;
-void CallActor::try_send_accept_query() {
-  LOG(INFO) << "Trying to send accept query";
-  if (!load_dh_config()) {
-    return;
-  }
-  if (!is_accepted_) {
-    LOG(DEBUG) << "Call is not accepted";
-    return;
-  }
-  dh_handshake_.set_config(dh_config_->g, dh_config_->prime);
-  auto tl_query = telegram_api::phone_acceptCall(get_input_phone_call("try_send_accept_query"),
-                                                 BufferSlice(dh_handshake_.get_g_b()),
-                                                 call_state_.protocol.get_input_phone_call_protocol());
-  auto query = G()->net_query_creator().create(tl_query);
-  state_ = State::WaitAcceptResult;
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this)](Result<NetQueryPtr> r_net_query) {
-                      send_closure(actor_id, &CallActor::on_accept_query_result, std::move(r_net_query));
-                    }));
-}
-
-void CallActor::on_accept_query_result(Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_acceptCall>(std::move(r_net_query));
-  if (res.is_error()) {
-    return on_error(res.move_as_error());
-  }
-  update_call_inner(res.move_as_ok());
-}
-
-//phone.confirmCall#2efe1722 peer:InputPhoneCall g_a:bytes key_fingerprint:long protocol:PhoneCallProtocol = phone.PhoneCall;
-void CallActor::try_send_confirm_query() {
-  LOG(INFO) << "Trying to send confirm query";
-  if (!load_dh_config()) {
-    return;
-  }
-  auto tl_query = telegram_api::phone_confirmCall(get_input_phone_call("try_send_confirm_query"),
-                                                  BufferSlice(dh_handshake_.get_g_b()), call_state_.key_fingerprint,
-                                                  call_state_.protocol.get_input_phone_call_protocol());
-  auto query = G()->net_query_creator().create(tl_query);
-  state_ = State::WaitConfirmResult;
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this)](Result<NetQueryPtr> r_net_query) {
-                      send_closure(actor_id, &CallActor::on_confirm_query_result, std::move(r_net_query));
-                    }));
-}
-
-void CallActor::on_confirm_query_result(Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_confirmCall>(std::move(r_net_query));
-  if (res.is_error()) {
-    return on_error(res.move_as_error());
-  }
-  update_call_inner(res.move_as_ok());
-}
-
-void CallActor::try_send_discard_query() {
-  if (call_id_ == 0) {
-    LOG(INFO) << "Failed to send discard query, because call_id_ is unknown";
-    CallDiscardReason reason;
-    reason.type_ = CallDiscardReason::Type::Missed;
-    on_call_discarded(std::move(reason), false, false, is_video_);
-    yield();
-    return;
-  }
-  LOG(INFO) << "Trying to send discard query";
-  int32 flags = 0;
-  if (is_video_) {
-    flags |= telegram_api::phone_discardCall::VIDEO_MASK;
-  }
-  auto tl_query = telegram_api::phone_discardCall(
-      flags, false /*ignored*/, get_input_phone_call("try_send_discard_query"), duration_,
-      get_input_phone_call_discard_reason(call_state_.discard_reason), connection_id_);
-  auto query = G()->net_query_creator().create(tl_query);
-  state_ = State::WaitDiscardResult;
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this)](Result<NetQueryPtr> r_net_query) {
-                      send_closure(actor_id, &CallActor::on_discard_query_result, std::move(r_net_query));
-                    }));
-}
-
-void CallActor::on_discard_query_result(Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_discardCall>(std::move(r_net_query));
-  if (res.is_error()) {
-    return on_error(res.move_as_error());
-  }
-  send_closure(G()->updates_manager(), &UpdatesManager::on_get_updates, res.move_as_ok(), Promise<Unit>());
-}
-
-void CallActor::flush_call_state() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (call_state_need_flush_) {
-    if (!is_outgoing_) {
-      if (call_state_.type == CallState::Type::Pending) {
-        if (!has_notification_) {
-          has_notification_ = true;
-          send_closure(G()->notification_manager(), &NotificationManager::add_call_notification,
-                       DialogId(call_admin_user_id_), local_call_id_);
-        }
-      } else {
-        if (has_notification_) {
-          has_notification_ = false;
-          send_closure(G()->notification_manager(), &NotificationManager::remove_call_notification,
-                       DialogId(call_admin_user_id_), local_call_id_);
-        }
-      }
-    }
-
-    if (call_state_.type == CallState::Type::Ready && !call_state_has_config_) {
-      return;
-    }
-    call_state_need_flush_ = false;
-
-    auto peer_id = is_outgoing_ ? user_id_ : call_admin_user_id_;
-    auto group_call_id = td_->group_call_manager_->get_group_call_id(input_group_call_id_, DialogId()).get();
-    auto update = td_api::make_object<td_api::updateCall>(td_api::make_object<td_api::call>(
-        local_call_id_.get(), 0, is_outgoing_, is_video_, call_state_.get_call_state_object(), group_call_id));
-    send_closure(G()->user_manager(), &UserManager::get_user_id_object_async, peer_id,
-                 [td_actor = G()->td(), update = std::move(update)](Result<int64> r_user_id) mutable {
-                   if (r_user_id.is_ok()) {
-                     update->call_->user_id_ = r_user_id.ok();
-                     send_closure(td_actor, &Td::send_update, std::move(update));
-                   }
-                 });
-  }
-}
-
-void CallActor::start_up() {
-  auto tl_query = telegram_api::phone_getCallConfig();
-  auto query = G()->net_query_creator().create(tl_query);
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([actor_id = actor_id(this)](Result<NetQueryPtr> r_net_query) {
-                      send_closure(actor_id, &CallActor::on_get_call_config_result, std::move(r_net_query));
-                    }));
-}
-
-void CallActor::on_get_call_config_result(Result<NetQueryPtr> r_net_query) {
-  auto res = fetch_result<telegram_api::phone_getCallConfig>(std::move(r_net_query));
-  if (res.is_error()) {
-    return on_error(res.move_as_error());
-  }
-  call_state_.config = res.ok()->data_;
-  call_state_has_config_ = true;
-}
-
-void CallActor::loop() {
-  LOG(DEBUG) << "Enter loop for " << call_id_ << " in " << state_ << '/' << call_state_.type;
-  flush_call_state();
-  switch (state_) {
-    case State::SendRequestQuery:
-      try_send_request_query();
-      break;
-    case State::SendAcceptQuery:
-      try_send_accept_query();
-      break;
-    case State::SendConfirmQuery:
-      try_send_confirm_query();
-      break;
-    case State::SendDiscardQuery:
-      try_send_discard_query();
-      break;
-    case State::Discarded: {
-      if (call_state_.type == CallState::Type::Discarded &&
-          (call_state_.need_rating || call_state_.need_debug_information || call_state_.need_log)) {
-        break;
-      }
-      LOG(INFO) << "Close " << local_call_id_;
-      container_.for_each(
-          [](auto id, Promise<NetQueryPtr> &promise) { promise.set_error(Global::request_aborted_error()); });
-      stop();
-      break;
-    }
-    default:
-      break;
-  }
-}
-
-void CallActor::timeout_expired() {
-  on_error(Status::Error(4005000, "Call timeout expired"));
-  yield();
-}
-
-void CallActor::on_result(NetQueryPtr query) {
-  auto token = get_link_token();
-  container_.extract(token).set_value(std::move(query));
-  yield();  // Call loop AFTER all events from the promise are executed
-}
-
-void CallActor::send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise) {
-  auto id = container_.create(std::move(promise));
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, id));
-}
-
-void CallActor::hangup() {
-  container_.for_each(
-      [](auto id, Promise<NetQueryPtr> &promise) { promise.set_error(Global::request_aborted_error()); });
-  stop();
-}
-
-vector<string> CallActor::get_emojis_fingerprint(const string &key, const string &g_a) {
-  string str = key + g_a;
-  unsigned char sha256_buf[32];
-  sha256(str, {sha256_buf, 32});
-
-  vector<string> result;
-  result.reserve(4);
-  for (int i = 0; i < 4; i++) {
-    uint64 num = big_endian_to_host64(as<uint64>(sha256_buf + 8 * i));
-    result.push_back(get_emoji_fingerprint(num));
-  }
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallActor.h b/third-party/td/td/td/telegram/CallActor.h
deleted file mode 100644
index 801c90bdea..0000000000
--- a/third-party/td/td/td/telegram/CallActor.h
+++ /dev/null
@@ -1,249 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CallDiscardReason.h"
-#include "td/telegram/CallId.h"
-#include "td/telegram/DhConfig.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/GroupCallId.h"
-#include "td/telegram/InputGroupCallId.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/mtproto/DhHandshake.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <memory>
-
-namespace td {
-
-class Td;
-
-struct CallProtocol {
-  bool udp_p2p{true};
-  bool udp_reflector{true};
-  int32 min_layer{65};
-  int32 max_layer{65};
-  vector<string> library_versions;
-
-  CallProtocol() = default;
-
-  explicit CallProtocol(const td_api::callProtocol &protocol);
-
-  explicit CallProtocol(const telegram_api::phoneCallProtocol &protocol);
-
-  telegram_api::object_ptr<telegram_api::phoneCallProtocol> get_input_phone_call_protocol() const;
-
-  td_api::object_ptr<td_api::callProtocol> get_call_protocol_object() const;
-};
-
-struct CallConnection {
-  enum class Type : int32 { Telegram, Webrtc };
-  Type type;
-  int64 id;
-  string ip;
-  string ipv6;
-  int32 port;
-
-  // Telegram
-  string peer_tag;
-  bool is_tcp = false;
-
-  // WebRTC
-  string username;
-  string password;
-  bool supports_turn = false;
-  bool supports_stun = false;
-
-  explicit CallConnection(const telegram_api::PhoneConnection &connection);
-
-  tl_object_ptr<td_api::callServer> get_call_server_object() const;
-};
-
-struct CallState {
-  enum class Type : int32 { Empty, Pending, ExchangingKey, Ready, HangingUp, Discarded, Error } type{Type::Empty};
-
-  CallProtocol protocol;
-  vector<CallConnection> connections;
-  CallDiscardReason discard_reason;
-  bool is_created{false};
-  bool is_received{false};
-  bool need_debug_information{false};
-  bool need_rating{false};
-  bool need_log{false};
-
-  int64 key_fingerprint{0};
-  string key;
-  string config;
-  vector<string> emojis_fingerprint;
-  string custom_parameters;
-  bool allow_p2p{false};
-
-  Status error;
-
-  tl_object_ptr<td_api::CallState> get_call_state_object() const;
-};
-
-class CallActor final : public NetQueryCallback {
- public:
-  CallActor(Td *td, CallId call_id, ActorShared<> parent, Promise<int64> promise);
-
-  void create_call(UserId user_id, CallProtocol &&protocol, bool is_video, GroupCallId group_call_id,
-                   Promise<CallId> &&promise);
-
-  void accept_call(CallProtocol &&protocol, Promise<Unit> promise);
-
-  void update_call_signaling_data(string data);
-
-  void send_call_signaling_data(string &&data, Promise<Unit> promise);
-
-  void discard_call(bool is_disconnected, int32 duration, bool is_video, int64 connection_id, Promise<Unit> promise);
-
-  void rate_call(int32 rating, string comment, vector<td_api::object_ptr<td_api::CallProblem>> &&problems,
-                 Promise<Unit> promise);
-
-  void send_call_debug_information(string data, Promise<Unit> promise);
-
-  void send_call_log(td_api::object_ptr<td_api::InputFile> log_file, Promise<Unit> promise);
-
-  void create_conference_call(Promise<Unit> promise);
-
-  void update_call(tl_object_ptr<telegram_api::PhoneCall> call);
-
- private:
-  Td *td_;
-  ActorShared<> parent_;
-  Promise<int64> call_id_promise_;
-
-  mtproto::DhHandshake dh_handshake_;
-  std::shared_ptr<DhConfig> dh_config_;
-  bool dh_config_query_sent_{false};
-  bool dh_config_ready_{false};
-
-  int32 duration_{0};
-  int64 connection_id_{0};
-
-  enum class State : int32 {
-    Empty,
-    SendRequestQuery,
-    WaitRequestResult,
-    SendAcceptQuery,
-    WaitAcceptResult,
-    SendConfirmQuery,
-    WaitConfirmResult,
-    Ready,
-    SendDiscardQuery,
-    WaitDiscardResult,
-    Discarded
-  } state_{State::Empty};
-  bool is_accepted_{false};
-
-  bool is_outgoing_{false};
-  bool is_video_{false};
-  UserId user_id_;
-  InputGroupCallId input_group_call_id_;
-
-  CallId local_call_id_;
-  int64 call_id_{0};
-  bool is_call_id_inited_{false};
-  bool has_notification_{false};
-  int64 call_access_hash_{0};
-  UserId call_admin_user_id_;
-
-  CallState call_state_;
-  bool call_state_need_flush_{false};
-  bool call_state_has_config_{false};
-
-  NetQueryRef request_query_ref_;
-
-  void update_call_inner(tl_object_ptr<telegram_api::phone_phoneCall> call);
-
-  void update_conference_call(const telegram_api::object_ptr<telegram_api::inputGroupCall> &conference_call);
-
-  tl_object_ptr<telegram_api::inputPhoneCall> get_input_phone_call(const char *source);
-  bool load_dh_config();
-  void on_dh_config(Result<std::shared_ptr<DhConfig>> r_dh_config, bool dummy);
-  void do_load_dh_config(Promise<std::shared_ptr<DhConfig>> promise);
-
-  Status do_update_call(const telegram_api::phoneCallEmpty &call);
-  Status do_update_call(const telegram_api::phoneCallWaiting &call);
-  Status do_update_call(const telegram_api::phoneCallRequested &call);
-  Status do_update_call(const telegram_api::phoneCallAccepted &call);
-  Status do_update_call(const telegram_api::phoneCall &call);
-  Status do_update_call(const telegram_api::phoneCallDiscarded &call);
-
-  void on_get_call_id();
-
-  void send_received_query();
-  void on_received_query_result(Result<NetQueryPtr> r_net_query);
-
-  void try_send_request_query();
-  void on_request_query_result(Result<NetQueryPtr> r_net_query);
-
-  void try_send_accept_query();
-  void on_accept_query_result(Result<NetQueryPtr> r_net_query);
-
-  void try_send_confirm_query();
-  void on_confirm_query_result(Result<NetQueryPtr> r_net_query);
-
-  void try_send_discard_query();
-  void on_discard_query_result(Result<NetQueryPtr> r_net_query);
-
-  void on_begin_exchanging_key();
-
-  void on_call_discarded(CallDiscardReason reason, bool need_rating, bool need_debug, bool is_video);
-
-  void on_set_rating_query_result(Result<NetQueryPtr> r_net_query);
-
-  void on_save_debug_query_result(Result<NetQueryPtr> r_net_query);
-
-  void upload_log_file(FileUploadId file_upload_id, Promise<Unit> &&promise);
-
-  void on_upload_log_file(FileUploadId file_upload_id, Promise<Unit> &&promise,
-                          telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_log_file_error(FileUploadId file_upload_id, Promise<Unit> &&promise, Status status);
-
-  void do_upload_log_file(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-                          Promise<Unit> &&promise);
-
-  void on_save_log_query_result(FileUploadId file_upload_id, Promise<Unit> promise, Result<NetQueryPtr> r_net_query);
-
-  void on_create_conference_call_result(Promise<Unit> promise, Result<NetQueryPtr> r_net_query);
-
-  void on_get_call_config_result(Result<NetQueryPtr> r_net_query);
-
-  void flush_call_state();
-
-  static vector<string> get_emojis_fingerprint(const string &key, const string &g_a);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const State &state);
-
-  void start_up() final;
-  void loop() final;
-
-  Container<Promise<NetQueryPtr>> container_;
-  void on_result(NetQueryPtr query) final;
-  void send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise);
-
-  void timeout_expired() final;
-  void hangup() final;
-
-  void on_error(Status status);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallDiscardReason.cpp b/third-party/td/td/td/telegram/CallDiscardReason.cpp
deleted file mode 100644
index 2d0c3a0dda..0000000000
--- a/third-party/td/td/td/telegram/CallDiscardReason.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/CallDiscardReason.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-
-namespace td {
-
-CallDiscardReason get_call_discard_reason(
-    const telegram_api::object_ptr<telegram_api::PhoneCallDiscardReason> &reason) {
-  CallDiscardReason result;
-  if (reason != nullptr) {
-    switch (reason->get_id()) {
-      case telegram_api::phoneCallDiscardReasonMissed::ID:
-        result.type_ = CallDiscardReason::Type::Missed;
-        break;
-      case telegram_api::phoneCallDiscardReasonDisconnect::ID:
-        result.type_ = CallDiscardReason::Type::Disconnected;
-        break;
-      case telegram_api::phoneCallDiscardReasonHangup::ID:
-        result.type_ = CallDiscardReason::Type::HungUp;
-        break;
-      case telegram_api::phoneCallDiscardReasonBusy::ID:
-        result.type_ = CallDiscardReason::Type::Declined;
-        break;
-      /*
-      case telegram_api::phoneCallDiscardReasonAllowGroupCall::ID:
-        result.type_ = CallDiscardReason::Type::AllowGroupCall;
-        result.encrypted_key_ = static_cast<const telegram_api::phoneCallDiscardReasonAllowGroupCall *>(reason.get())
-                                    ->encrypted_key_.as_slice()
-                                    .str();
-        break;
-      */
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-  return result;
-}
-
-telegram_api::object_ptr<telegram_api::PhoneCallDiscardReason> get_input_phone_call_discard_reason(
-    CallDiscardReason reason) {
-  switch (reason.type_) {
-    case CallDiscardReason::Type::Empty:
-      return nullptr;
-    case CallDiscardReason::Type::Missed:
-      return telegram_api::make_object<telegram_api::phoneCallDiscardReasonMissed>();
-    case CallDiscardReason::Type::Disconnected:
-      return telegram_api::make_object<telegram_api::phoneCallDiscardReasonDisconnect>();
-    case CallDiscardReason::Type::HungUp:
-      return telegram_api::make_object<telegram_api::phoneCallDiscardReasonHangup>();
-    case CallDiscardReason::Type::Declined:
-      return telegram_api::make_object<telegram_api::phoneCallDiscardReasonBusy>();
-    /*
-    case CallDiscardReason::Type::AllowGroupCall:
-      return telegram_api::make_object<telegram_api::phoneCallDiscardReasonAllowGroupCall>(
-          BufferSlice(reason.encrypted_key_));
-    */
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::CallDiscardReason> get_call_discard_reason_object(CallDiscardReason reason) {
-  switch (reason.type_) {
-    case CallDiscardReason::Type::Empty:
-      return td_api::make_object<td_api::callDiscardReasonEmpty>();
-    case CallDiscardReason::Type::Missed:
-      return td_api::make_object<td_api::callDiscardReasonMissed>();
-    case CallDiscardReason::Type::Disconnected:
-      return td_api::make_object<td_api::callDiscardReasonDisconnected>();
-    case CallDiscardReason::Type::HungUp:
-      return td_api::make_object<td_api::callDiscardReasonHungUp>();
-    case CallDiscardReason::Type::Declined:
-      return td_api::make_object<td_api::callDiscardReasonDeclined>();
-    /*
-    case CallDiscardReason::Type::AllowGroupCall:
-      return td_api::make_object<td_api::callDiscardReasonAllowGroupCall>(reason.encrypted_key_);
-    */
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-bool operator==(const CallDiscardReason &lhs, const CallDiscardReason &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.encrypted_key_ == rhs.encrypted_key_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallDiscardReason.h b/third-party/td/td/td/telegram/CallDiscardReason.h
deleted file mode 100644
index 329787a1bc..0000000000
--- a/third-party/td/td/td/telegram/CallDiscardReason.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct CallDiscardReason {
-  enum class Type : int32 { Empty, Missed, Disconnected, HungUp, Declined };
-  Type type_ = Type::Empty;
-  string encrypted_key_;
-};
-
-CallDiscardReason get_call_discard_reason(const telegram_api::object_ptr<telegram_api::PhoneCallDiscardReason> &reason);
-
-telegram_api::object_ptr<telegram_api::PhoneCallDiscardReason> get_input_phone_call_discard_reason(
-    CallDiscardReason reason);
-
-td_api::object_ptr<td_api::CallDiscardReason> get_call_discard_reason_object(CallDiscardReason reason);
-
-bool operator==(const CallDiscardReason &lhs, const CallDiscardReason &rhs);
-
-inline bool operator!=(const CallDiscardReason &lhs, const CallDiscardReason &rhs) {
-  return !(lhs == rhs);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallId.h b/third-party/td/td/td/telegram/CallId.h
deleted file mode 100644
index 5fdf4098f9..0000000000
--- a/third-party/td/td/td/telegram/CallId.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class CallId {
- public:
-  CallId() = default;
-
-  explicit constexpr CallId(int32 call_id) : id(call_id) {
-  }
-
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  CallId(T call_id) = delete;
-
-  bool is_valid() const {
-    return id != 0;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  auto get_call_id_object() const {
-    return td_api::make_object<td_api::callId>(id);
-  }
-
-  bool operator==(const CallId &other) const {
-    return id == other.id;
-  }
-
- private:
-  int32 id{0};
-};
-
-struct CallIdHash {
-  uint32 operator()(CallId call_id) const {
-    return Hash<int32>()(call_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const CallId call_id) {
-  return sb << "call " << call_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallManager.cpp b/third-party/td/td/td/telegram/CallManager.cpp
deleted file mode 100644
index c7899e57da..0000000000
--- a/third-party/td/td/td/telegram/CallManager.cpp
+++ /dev/null
@@ -1,237 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/CallManager.h"
-
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <limits>
-
-namespace td {
-
-CallManager::CallManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void CallManager::tear_down() {
-  parent_.reset();
-}
-
-CallId CallManager::get_call_id(int64 call_id) {
-  auto it = call_info_.find(call_id);
-  if (it == call_info_.end()) {
-    return CallId();
-  }
-  return it->second.call_id;
-}
-
-void CallManager::update_call(telegram_api::object_ptr<telegram_api::updatePhoneCall> call) {
-  auto call_id = [phone_call = call->phone_call_.get()] {
-    switch (phone_call->get_id()) {
-      case telegram_api::phoneCallEmpty::ID:
-        return static_cast<const telegram_api::phoneCallEmpty *>(phone_call)->id_;
-      case telegram_api::phoneCallWaiting::ID:
-        return static_cast<const telegram_api::phoneCallWaiting *>(phone_call)->id_;
-      case telegram_api::phoneCallRequested::ID:
-        return static_cast<const telegram_api::phoneCallRequested *>(phone_call)->id_;
-      case telegram_api::phoneCallAccepted::ID:
-        return static_cast<const telegram_api::phoneCallAccepted *>(phone_call)->id_;
-      case telegram_api::phoneCall::ID:
-        return static_cast<const telegram_api::phoneCall *>(phone_call)->id_;
-      case telegram_api::phoneCallDiscarded::ID:
-        return static_cast<const telegram_api::phoneCallDiscarded *>(phone_call)->id_;
-      default:
-        UNREACHABLE();
-        return static_cast<int64>(0);
-    }
-  }();
-  LOG(DEBUG) << "Receive UpdateCall for " << call_id;
-
-  auto &info = call_info_[call_id];
-
-  if (!info.call_id.is_valid() && call->phone_call_->get_id() == telegram_api::phoneCallRequested::ID) {
-    info.call_id = create_call_actor();
-  }
-
-  if (!info.call_id.is_valid()) {
-    LOG(INFO) << "Call identifier is not valid for " << call_id << ", postpone update " << to_string(call);
-    info.updates.push_back(std::move(call));
-    return;
-  }
-
-  auto actor = get_call_actor(info.call_id);
-  if (actor.empty()) {
-    LOG(INFO) << "Drop update: " << to_string(call);
-  }
-  send_closure(actor, &CallActor::update_call, std::move(call->phone_call_));
-}
-
-void CallManager::update_call_signaling_data(int64 call_id, string data) {
-  auto info_it = call_info_.find(call_id);
-  if (info_it == call_info_.end() || !info_it->second.call_id.is_valid()) {
-    LOG(INFO) << "Ignore signaling data for " << call_id;
-    return;
-  }
-
-  auto actor = get_call_actor(info_it->second.call_id);
-  if (actor.empty()) {
-    LOG(INFO) << "Ignore signaling data for " << info_it->second.call_id;
-    return;
-  }
-  send_closure(actor, &CallActor::update_call_signaling_data, std::move(data));
-}
-
-void CallManager::create_call(UserId user_id, CallProtocol &&protocol, bool is_video, GroupCallId group_call_id,
-                              Promise<CallId> promise) {
-  TRY_STATUS_PROMISE(promise, td_->user_manager_->get_input_user(user_id));
-  LOG(INFO) << "Create call with " << user_id;
-  auto call_id = create_call_actor();
-  auto actor = get_call_actor(call_id);
-  CHECK(!actor.empty());
-  auto safe_promise = SafePromise<CallId>(std::move(promise), Status::Error(400, "Call not found"));
-  send_closure(actor, &CallActor::create_call, user_id, std::move(protocol), is_video, group_call_id,
-               std::move(safe_promise));
-}
-
-void CallManager::accept_call(CallId call_id, CallProtocol &&protocol, Promise<Unit> promise) {
-  auto actor = get_call_actor(call_id);
-  if (actor.empty()) {
-    return promise.set_error(Status::Error(400, "Call not found"));
-  }
-  auto safe_promise = SafePromise<Unit>(std::move(promise), Status::Error(400, "Call not found"));
-  send_closure(actor, &CallActor::accept_call, std::move(protocol), std::move(safe_promise));
-}
-
-void CallManager::send_call_signaling_data(CallId call_id, string &&data, Promise<Unit> promise) {
-  auto actor = get_call_actor(call_id);
-  if (actor.empty()) {
-    return promise.set_error(Status::Error(400, "Call not found"));
-  }
-  auto safe_promise = SafePromise<Unit>(std::move(promise), Status::Error(400, "Call not found"));
-  send_closure(actor, &CallActor::send_call_signaling_data, std::move(data), std::move(safe_promise));
-}
-
-void CallManager::discard_call(CallId call_id, bool is_disconnected, int32 duration, bool is_video, int64 connection_id,
-                               Promise<Unit> promise) {
-  auto actor = get_call_actor(call_id);
-  if (actor.empty()) {
-    return promise.set_error(Status::Error(400, "Call not found"));
-  }
-  auto safe_promise = SafePromise<Unit>(std::move(promise), Status::Error(400, "Call not found"));
-  send_closure(actor, &CallActor::discard_call, is_disconnected, duration, is_video, connection_id,
-               std::move(safe_promise));
-}
-
-void CallManager::rate_call(CallId call_id, int32 rating, string comment,
-                            vector<td_api::object_ptr<td_api::CallProblem>> &&problems, Promise<Unit> promise) {
-  auto actor = get_call_actor(call_id);
-  if (actor.empty()) {
-    return promise.set_error(Status::Error(400, "Call not found"));
-  }
-  auto safe_promise = SafePromise<Unit>(std::move(promise), Status::Error(400, "Call not found"));
-  send_closure(actor, &CallActor::rate_call, rating, std::move(comment), std::move(problems), std::move(safe_promise));
-}
-
-void CallManager::send_call_debug_information(CallId call_id, string data, Promise<Unit> promise) {
-  auto actor = get_call_actor(call_id);
-  if (actor.empty()) {
-    return promise.set_error(Status::Error(400, "Call not found"));
-  }
-  auto safe_promise = SafePromise<Unit>(std::move(promise), Status::Error(400, "Call not found"));
-  send_closure(actor, &CallActor::send_call_debug_information, std::move(data), std::move(safe_promise));
-}
-
-void CallManager::send_call_log(CallId call_id, td_api::object_ptr<td_api::InputFile> log_file, Promise<Unit> promise) {
-  auto actor = get_call_actor(call_id);
-  if (actor.empty()) {
-    return promise.set_error(Status::Error(400, "Call not found"));
-  }
-  auto safe_promise = SafePromise<Unit>(std::move(promise), Status::Error(400, "Call not found"));
-  send_closure(actor, &CallActor::send_call_log, std::move(log_file), std::move(safe_promise));
-}
-
-void CallManager::create_conference_call(CallId call_id, Promise<Unit> promise) {
-  auto actor = get_call_actor(call_id);
-  if (actor.empty()) {
-    return promise.set_error(Status::Error(400, "Call not found"));
-  }
-  auto safe_promise = SafePromise<Unit>(std::move(promise), Status::Error(400, "Call not found"));
-  send_closure(actor, &CallActor::create_conference_call, std::move(safe_promise));
-}
-
-CallId CallManager::create_call_actor() {
-  if (next_call_id_ == std::numeric_limits<int32>::max()) {
-    next_call_id_ = 1;
-  }
-  auto id = CallId(next_call_id_++);
-  CHECK(id.is_valid());
-  auto it_flag = id_to_actor_.emplace(id, ActorOwn<CallActor>());
-  CHECK(it_flag.second);
-  LOG(INFO) << "Create CallActor: " << id;
-  auto main_promise = PromiseCreator::lambda([actor_id = actor_id(this), id](Result<int64> call_id) {
-    send_closure(actor_id, &CallManager::set_call_id, id, std::move(call_id));
-  });
-  it_flag.first->second = create_actor<CallActor>(PSLICE() << "Call " << id.get(), td_, id,
-                                                  actor_shared(this, id.get()), std::move(main_promise));
-  return id;
-}
-
-void CallManager::set_call_id(CallId call_id, Result<int64> r_server_call_id) {
-  if (r_server_call_id.is_error()) {
-    return;
-  }
-  auto server_call_id = r_server_call_id.move_as_ok();
-  auto &call_info = call_info_[server_call_id];
-  CHECK(!call_info.call_id.is_valid() || call_info.call_id == call_id);
-  call_info.call_id = call_id;
-  auto actor = get_call_actor(call_id);
-  if (actor.empty()) {
-    return;
-  }
-  for (auto &update : call_info.updates) {
-    send_closure(actor, &CallActor::update_call, std::move(update->phone_call_));
-  }
-  call_info.updates.clear();
-}
-
-ActorId<CallActor> CallManager::get_call_actor(CallId call_id) {
-  auto it = id_to_actor_.find(call_id);
-  if (it == id_to_actor_.end()) {
-    return ActorId<CallActor>();
-  }
-  return it->second.get();
-}
-
-void CallManager::hangup() {
-  close_flag_ = true;
-  for (auto &it : id_to_actor_) {
-    LOG(INFO) << "Ask to close CallActor " << it.first.get();
-    it.second.reset();
-  }
-  if (id_to_actor_.empty()) {
-    stop();
-  }
-}
-
-void CallManager::hangup_shared() {
-  auto token = narrow_cast<int32>(get_link_token());
-  auto it = id_to_actor_.find(CallId(token));
-  CHECK(it != id_to_actor_.end());
-  LOG(INFO) << "Closed CallActor " << it->first.get();
-  it->second.release();
-  id_to_actor_.erase(it);
-  if (close_flag_ && id_to_actor_.empty()) {
-    stop();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallManager.h b/third-party/td/td/td/telegram/CallManager.h
deleted file mode 100644
index e0fd07701c..0000000000
--- a/third-party/td/td/td/telegram/CallManager.h
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CallActor.h"
-#include "td/telegram/CallId.h"
-#include "td/telegram/GroupCallId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <map>
-
-namespace td {
-
-class Td;
-
-class CallManager final : public Actor {
- public:
-  CallManager(Td *td, ActorShared<> parent);
-
-  CallId get_call_id(int64 call_id);
-
-  void update_call(telegram_api::object_ptr<telegram_api::updatePhoneCall> call);
-
-  void update_call_signaling_data(int64 call_id, string data);
-
-  void create_call(UserId user_id, CallProtocol &&protocol, bool is_video, GroupCallId group_call_id,
-                   Promise<CallId> promise);
-
-  void accept_call(CallId call_id, CallProtocol &&protocol, Promise<Unit> promise);
-
-  void send_call_signaling_data(CallId call_id, string &&data, Promise<Unit> promise);
-
-  void discard_call(CallId call_id, bool is_disconnected, int32 duration, bool is_video, int64 connection_id,
-                    Promise<Unit> promise);
-
-  void rate_call(CallId call_id, int32 rating, string comment,
-                 vector<td_api::object_ptr<td_api::CallProblem>> &&problems, Promise<Unit> promise);
-
-  void send_call_debug_information(CallId call_id, string data, Promise<Unit> promise);
-
-  void send_call_log(CallId call_id, td_api::object_ptr<td_api::InputFile> log_file, Promise<Unit> promise);
-
-  void create_conference_call(CallId call_id, Promise<Unit> promise);
-
- private:
-  bool close_flag_ = false;
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  struct CallInfo {
-    CallId call_id{0};
-    vector<telegram_api::object_ptr<telegram_api::updatePhoneCall>> updates;
-  };
-  std::map<int64, CallInfo> call_info_;
-  int32 next_call_id_{1};
-  FlatHashMap<CallId, ActorOwn<CallActor>, CallIdHash> id_to_actor_;
-
-  ActorId<CallActor> get_call_actor(CallId call_id);
-  CallId create_call_actor();
-  void set_call_id(CallId call_id, Result<int64> r_server_call_id);
-
-  void hangup() final;
-  void hangup_shared() final;
-  void tear_down() final;
-};
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallbackQueriesManager.cpp b/third-party/td/td/td/telegram/CallbackQueriesManager.cpp
deleted file mode 100644
index 81c95cc905..0000000000
--- a/third-party/td/td/td/telegram/CallbackQueriesManager.cpp
+++ /dev/null
@@ -1,315 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/CallbackQueriesManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/InlineQueriesManager.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class GetBotCallbackAnswerQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::callbackQueryAnswer>> promise_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-
- public:
-  explicit GetBotCallbackAnswerQuery(Promise<td_api::object_ptr<td_api::callbackQueryAnswer>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id, const tl_object_ptr<td_api::CallbackQueryPayload> &payload,
-            tl_object_ptr<telegram_api::InputCheckPasswordSRP> &&password) {
-    dialog_id_ = dialog_id;
-    message_id_ = message_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = 0;
-    BufferSlice data;
-    CHECK(payload != nullptr);
-    switch (payload->get_id()) {
-      case td_api::callbackQueryPayloadData::ID:
-        flags = telegram_api::messages_getBotCallbackAnswer::DATA_MASK;
-        data = BufferSlice(static_cast<const td_api::callbackQueryPayloadData *>(payload.get())->data_);
-        break;
-      case td_api::callbackQueryPayloadDataWithPassword::ID:
-        CHECK(password != nullptr);
-        flags = telegram_api::messages_getBotCallbackAnswer::DATA_MASK |
-                telegram_api::messages_getBotCallbackAnswer::PASSWORD_MASK;
-        data = BufferSlice(static_cast<const td_api::callbackQueryPayloadDataWithPassword *>(payload.get())->data_);
-        break;
-      case td_api::callbackQueryPayloadGame::ID:
-        flags = telegram_api::messages_getBotCallbackAnswer::GAME_MASK;
-        break;
-      default:
-        UNREACHABLE();
-    }
-
-    auto net_query = G()->net_query_creator().create(telegram_api::messages_getBotCallbackAnswer(
-        flags, false /*ignored*/, std::move(input_peer), message_id.get_server_message_id().get(), std::move(data),
-        std::move(password)));
-    net_query->need_resend_on_503_ = false;
-    send_query(std::move(net_query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getBotCallbackAnswer>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto answer = result_ptr.move_as_ok();
-    promise_.set_value(
-        td_api::make_object<td_api::callbackQueryAnswer>(answer->message_, answer->alert_, answer->url_));
-  }
-
-  void on_error(Status status) final {
-    td_->messages_manager_->on_get_message_error(dialog_id_, message_id_, status, "GetBotCallbackAnswerQuery");
-    if (status.message() == "BOT_RESPONSE_TIMEOUT") {
-      status = Status::Error(502, "The bot is not responding");
-    }
-    if (status.code() == 502 && td_->messages_manager_->is_message_edited_recently({dialog_id_, message_id_}, 31)) {
-      return promise_.set_value(td_api::make_object<td_api::callbackQueryAnswer>());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetBotCallbackAnswerQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetBotCallbackAnswerQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 callback_query_id, const string &text, const string &url, bool show_alert, int32 cache_time) {
-    int32 flags = 0;
-    if (!text.empty()) {
-      flags |= telegram_api::messages_setBotCallbackAnswer::MESSAGE_MASK;
-    }
-    if (show_alert) {
-      flags |= telegram_api::messages_setBotCallbackAnswer::ALERT_MASK;
-    }
-    if (!url.empty()) {
-      flags |= telegram_api::messages_setBotCallbackAnswer::URL_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_setBotCallbackAnswer(
-        flags, false /*ignored*/, callback_query_id, text, url, cache_time)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setBotCallbackAnswer>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      LOG(INFO) << "Sending answer to a callback query has failed";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-CallbackQueriesManager::CallbackQueriesManager(Td *td) : td_(td) {
-}
-
-void CallbackQueriesManager::answer_callback_query(int64 callback_query_id, const string &text, bool show_alert,
-                                                   const string &url, int32 cache_time, Promise<Unit> &&promise) const {
-  td_->create_handler<SetBotCallbackAnswerQuery>(std::move(promise))
-      ->send(callback_query_id, text, url, show_alert, cache_time);
-}
-
-tl_object_ptr<td_api::CallbackQueryPayload> CallbackQueriesManager::get_query_payload(BufferSlice &&data,
-                                                                                      string &&game_short_name) {
-  bool has_data = !data.empty();
-  bool has_game = !game_short_name.empty();
-  if (has_data == has_game) {
-    LOG(ERROR) << "Receive wrong callback query: " << has_data << ' ' << has_game;
-    return nullptr;
-  }
-
-  if (has_data) {
-    return td_api::make_object<td_api::callbackQueryPayloadData>(data.as_slice().str());
-  }
-  if (has_game) {
-    return td_api::make_object<td_api::callbackQueryPayloadGame>(game_short_name);
-  }
-  UNREACHABLE();
-  return nullptr;
-}
-
-void CallbackQueriesManager::on_new_query(int64 callback_query_id, UserId sender_user_id, DialogId dialog_id,
-                                          MessageId message_id, BufferSlice &&data, int64 chat_instance,
-                                          string &&game_short_name) {
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive new callback query in invalid " << dialog_id;
-    return;
-  }
-  if (!sender_user_id.is_valid()) {
-    LOG(ERROR) << "Receive new callback query from invalid " << sender_user_id << " in " << dialog_id;
-    return;
-  }
-  LOG_IF(ERROR, !td_->user_manager_->have_user(sender_user_id)) << "Receive unknown " << sender_user_id;
-  if (!td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Receive new callback query";
-    return;
-  }
-  if (!message_id.is_valid()) {
-    LOG(ERROR) << "Receive new callback query from " << message_id << " in " << dialog_id << " sent by "
-               << sender_user_id;
-    return;
-  }
-
-  auto payload = get_query_payload(std::move(data), std::move(game_short_name));
-  if (payload == nullptr) {
-    return;
-  }
-
-  td_->dialog_manager_->force_create_dialog(dialog_id, "on_new_callback_query", true);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateNewCallbackQuery>(
-                   callback_query_id, td_->user_manager_->get_user_id_object(sender_user_id, "updateNewCallbackQuery"),
-                   td_->dialog_manager_->get_chat_id_object(dialog_id, "updateNewCallbackQuery"), message_id.get(),
-                   chat_instance, std::move(payload)));
-}
-
-void CallbackQueriesManager::on_new_inline_query(
-    int64 callback_query_id, UserId sender_user_id,
-    tl_object_ptr<telegram_api::InputBotInlineMessageID> &&inline_message_id, BufferSlice &&data, int64 chat_instance,
-    string &&game_short_name) {
-  if (!sender_user_id.is_valid()) {
-    LOG(ERROR) << "Receive new callback query from invalid " << sender_user_id;
-    return;
-  }
-  LOG_IF(ERROR, !td_->user_manager_->have_user(sender_user_id)) << "Receive unknown " << sender_user_id;
-  if (!td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Receive new inline callback query";
-    return;
-  }
-  CHECK(inline_message_id != nullptr);
-
-  auto payload = get_query_payload(std::move(data), std::move(game_short_name));
-  if (payload == nullptr) {
-    return;
-  }
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateNewInlineCallbackQuery>(
-          callback_query_id, td_->user_manager_->get_user_id_object(sender_user_id, "updateNewInlineCallbackQuery"),
-          InlineQueriesManager::get_inline_message_id(std::move(inline_message_id)), chat_instance,
-          std::move(payload)));
-}
-
-void CallbackQueriesManager::on_new_business_query(int64 callback_query_id, UserId sender_user_id,
-                                                   string &&connection_id,
-                                                   telegram_api::object_ptr<telegram_api::Message> &&message,
-                                                   telegram_api::object_ptr<telegram_api::Message> &&reply_to_message,
-                                                   BufferSlice &&data, int64 chat_instance) {
-  if (!sender_user_id.is_valid()) {
-    LOG(ERROR) << "Receive new callback query from invalid " << sender_user_id;
-    return;
-  }
-  LOG_IF(ERROR, !td_->user_manager_->have_user(sender_user_id)) << "Receive unknown " << sender_user_id;
-  if (!td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Receive new business callback query";
-    return;
-  }
-  auto message_object =
-      td_->messages_manager_->get_business_message_object(std::move(message), std::move(reply_to_message));
-  if (message_object == nullptr) {
-    return;
-  }
-
-  auto payload = td_api::make_object<td_api::callbackQueryPayloadData>(data.as_slice().str());
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateNewBusinessCallbackQuery>(
-          callback_query_id, td_->user_manager_->get_user_id_object(sender_user_id, "updateNewInlineCallbackQuery"),
-          connection_id, std::move(message_object), chat_instance, std::move(payload)));
-}
-
-void CallbackQueriesManager::send_callback_query(MessageFullId message_full_id,
-                                                 tl_object_ptr<td_api::CallbackQueryPayload> &&payload,
-                                                 Promise<td_api::object_ptr<td_api::callbackQueryAnswer>> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Bot can't send callback queries to other bot"));
-  }
-
-  if (payload == nullptr) {
-    return promise.set_error(Status::Error(400, "Payload must be non-empty"));
-  }
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "send_callback_query"));
-
-  if (!td_->messages_manager_->have_message_force(message_full_id, "send_callback_query")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (message_full_id.get_message_id().is_valid_scheduled()) {
-    return promise.set_error(Status::Error(400, "Can't send callback queries from scheduled messages"));
-  }
-  if (!message_full_id.get_message_id().is_server()) {
-    return promise.set_error(Status::Error(400, "Bad message identifier"));
-  }
-
-  if (payload->get_id() == td_api::callbackQueryPayloadDataWithPassword::ID) {
-    auto password = static_cast<const td_api::callbackQueryPayloadDataWithPassword *>(payload.get())->password_;
-    send_closure(
-        td_->password_manager_, &PasswordManager::get_input_check_password_srp, std::move(password),
-        PromiseCreator::lambda([this, message_full_id, payload = std::move(payload), promise = std::move(promise)](
-                                   Result<tl_object_ptr<telegram_api::InputCheckPasswordSRP>> result) mutable {
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-          send_get_callback_answer_query(message_full_id, std::move(payload), result.move_as_ok(), std::move(promise));
-        }));
-  } else {
-    send_get_callback_answer_query(message_full_id, std::move(payload), nullptr, std::move(promise));
-  }
-}
-
-void CallbackQueriesManager::send_get_callback_answer_query(
-    MessageFullId message_full_id, tl_object_ptr<td_api::CallbackQueryPayload> &&payload,
-    tl_object_ptr<telegram_api::InputCheckPasswordSRP> &&password,
-    Promise<td_api::object_ptr<td_api::callbackQueryAnswer>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_STATUS_PROMISE(promise,
-                     td_->dialog_manager_->check_dialog_access_in_memory(dialog_id, false, AccessRights::Read));
-  if (!td_->messages_manager_->have_message_force(message_full_id, "send_get_callback_answer_query")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  td_->create_handler<GetBotCallbackAnswerQuery>(std::move(promise))
-      ->send(dialog_id, message_full_id.get_message_id(), payload, std::move(password));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CallbackQueriesManager.h b/third-party/td/td/td/telegram/CallbackQueriesManager.h
deleted file mode 100644
index 65beff17e5..0000000000
--- a/third-party/td/td/td/telegram/CallbackQueriesManager.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class CallbackQueriesManager {
- public:
-  explicit CallbackQueriesManager(Td *td);
-
-  void answer_callback_query(int64 callback_query_id, const string &text, bool show_alert, const string &url,
-                             int32 cache_time, Promise<Unit> &&promise) const;
-
-  void on_new_query(int64 callback_query_id, UserId sender_user_id, DialogId dialog_id, MessageId message_id,
-                    BufferSlice &&data, int64 chat_instance, string &&game_short_name);
-
-  void on_new_inline_query(int64 callback_query_id, UserId sender_user_id,
-                           tl_object_ptr<telegram_api::InputBotInlineMessageID> &&inline_message_id, BufferSlice &&data,
-                           int64 chat_instance, string &&game_short_name);
-
-  void on_new_business_query(int64 callback_query_id, UserId sender_user_id, string &&connection_id,
-                             telegram_api::object_ptr<telegram_api::Message> &&message,
-                             telegram_api::object_ptr<telegram_api::Message> &&reply_to_message, BufferSlice &&data,
-                             int64 chat_instance);
-
-  void send_callback_query(MessageFullId message_full_id, tl_object_ptr<td_api::CallbackQueryPayload> &&payload,
-                           Promise<td_api::object_ptr<td_api::callbackQueryAnswer>> &&promise);
-
- private:
-  static tl_object_ptr<td_api::CallbackQueryPayload> get_query_payload(BufferSlice &&data, string &&game_short_name);
-
-  void send_get_callback_answer_query(MessageFullId message_full_id,
-                                      tl_object_ptr<td_api::CallbackQueryPayload> &&payload,
-                                      tl_object_ptr<telegram_api::InputCheckPasswordSRP> &&password,
-                                      Promise<td_api::object_ptr<td_api::callbackQueryAnswer>> &&promise);
-
-  Td *td_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChainId.h b/third-party/td/td/td/telegram/ChainId.h
deleted file mode 100644
index 0522459944..0000000000
--- a/third-party/td/td/td/telegram/ChainId.h
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/PollId.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-
-namespace td {
-
-class ChainId {
-  uint64 id = 0;
-
- public:
-  ChainId(ChannelId channel_id) : ChainId(DialogId(channel_id)) {
-  }
-
-  ChainId(ChatId chat_id) : ChainId(DialogId(chat_id)) {
-  }
-
-  ChainId(DialogId dialog_id, MessageContentType message_content_type)
-      : id((static_cast<uint64>(dialog_id.get()) << 10) + get_message_content_chain_id(message_content_type)) {
-  }
-
-  ChainId(DialogId dialog_id) : id((static_cast<uint64>(dialog_id.get()) << 10) + 10) {
-  }
-
-  ChainId(MessageFullId message_full_id) : ChainId(message_full_id.get_dialog_id()) {
-    id += static_cast<uint64>(message_full_id.get_message_id().get()) << 10;
-  }
-
-  ChainId(FolderId folder_id) : id((static_cast<uint64>(folder_id.get() + (1 << 30)) << 10)) {
-  }
-
-  ChainId(PollId poll_id) : id(static_cast<uint64>(poll_id.get())) {
-  }
-
-  ChainId(const string &str) : id(Hash<string>()(str)) {
-  }
-
-  ChainId(UserId user_id) : ChainId(DialogId(user_id)) {
-  }
-
-  ChainId(StoryFullId story_full_id) : ChainId(story_full_id.get_dialog_id()) {
-    id += static_cast<uint64>(story_full_id.get_story_id().get()) << 10;
-  }
-
-  uint64 get() const {
-    return id;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChannelId.h b/third-party/td/td/td/telegram/ChannelId.h
deleted file mode 100644
index 8dcb429193..0000000000
--- a/third-party/td/td/td/telegram/ChannelId.h
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class ChannelId {
-  int64 id = 0;
-
- public:
-  // the last (1 << 31) - 1 identifiers will be used for secret chat dialog identifiers
-  static constexpr int64 MAX_CHANNEL_ID = 1000000000000ll - (1ll << 31);
-
-  ChannelId() = default;
-
-  explicit constexpr ChannelId(int64 channel_id) : id(channel_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  ChannelId(T channel_id) = delete;
-
-  bool is_valid() const {
-    return 0 < id && id < MAX_CHANNEL_ID;
-  }
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const ChannelId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const ChannelId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::Support64BitIds)) {
-      id = parser.fetch_long();
-    } else {
-      id = parser.fetch_int();
-    }
-  }
-};
-
-struct ChannelIdHash {
-  uint32 operator()(ChannelId channel_id) const {
-    return Hash<int64>()(channel_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, ChannelId channel_id) {
-  return string_builder << "supergroup " << channel_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChannelParticipantFilter.cpp b/third-party/td/td/td/telegram/ChannelParticipantFilter.cpp
deleted file mode 100644
index 316bdd5766..0000000000
--- a/third-party/td/td/td/telegram/ChannelParticipantFilter.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ChannelParticipantFilter.h"
-
-namespace td {
-
-tl_object_ptr<telegram_api::ChannelParticipantsFilter> ChannelParticipantFilter::get_input_channel_participants_filter()
-    const {
-  switch (type_) {
-    case Type::Recent:
-      return make_tl_object<telegram_api::channelParticipantsRecent>();
-    case Type::Contacts:
-      return make_tl_object<telegram_api::channelParticipantsContacts>(query_);
-    case Type::Administrators:
-      return make_tl_object<telegram_api::channelParticipantsAdmins>();
-    case Type::Search:
-      return make_tl_object<telegram_api::channelParticipantsSearch>(query_);
-    case Type::Mention: {
-      int32 flags = 0;
-      if (!query_.empty()) {
-        flags |= telegram_api::channelParticipantsMentions::Q_MASK;
-      }
-      if (top_thread_message_id_.is_valid()) {
-        flags |= telegram_api::channelParticipantsMentions::TOP_MSG_ID_MASK;
-      }
-      return make_tl_object<telegram_api::channelParticipantsMentions>(
-          flags, query_, top_thread_message_id_.get_server_message_id().get());
-    }
-    case Type::Restricted:
-      return make_tl_object<telegram_api::channelParticipantsBanned>(query_);
-    case Type::Banned:
-      return make_tl_object<telegram_api::channelParticipantsKicked>(query_);
-    case Type::Bots:
-      return make_tl_object<telegram_api::channelParticipantsBots>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-ChannelParticipantFilter::ChannelParticipantFilter(const tl_object_ptr<td_api::SupergroupMembersFilter> &filter) {
-  if (filter == nullptr) {
-    type_ = Type::Recent;
-    return;
-  }
-  switch (filter->get_id()) {
-    case td_api::supergroupMembersFilterRecent::ID:
-      type_ = Type::Recent;
-      return;
-    case td_api::supergroupMembersFilterContacts::ID:
-      type_ = Type::Contacts;
-      query_ = static_cast<const td_api::supergroupMembersFilterContacts *>(filter.get())->query_;
-      return;
-    case td_api::supergroupMembersFilterAdministrators::ID:
-      type_ = Type::Administrators;
-      return;
-    case td_api::supergroupMembersFilterSearch::ID:
-      type_ = Type::Search;
-      query_ = static_cast<const td_api::supergroupMembersFilterSearch *>(filter.get())->query_;
-      return;
-    case td_api::supergroupMembersFilterMention::ID: {
-      auto mention_filter = static_cast<const td_api::supergroupMembersFilterMention *>(filter.get());
-      type_ = Type::Mention;
-      query_ = mention_filter->query_;
-      top_thread_message_id_ = MessageId(mention_filter->message_thread_id_);
-      if (!top_thread_message_id_.is_valid() || !top_thread_message_id_.is_server()) {
-        top_thread_message_id_ = MessageId();
-      }
-      return;
-    }
-    case td_api::supergroupMembersFilterRestricted::ID:
-      type_ = Type::Restricted;
-      query_ = static_cast<const td_api::supergroupMembersFilterRestricted *>(filter.get())->query_;
-      return;
-    case td_api::supergroupMembersFilterBanned::ID:
-      type_ = Type::Banned;
-      query_ = static_cast<const td_api::supergroupMembersFilterBanned *>(filter.get())->query_;
-      return;
-    case td_api::supergroupMembersFilterBots::ID:
-      type_ = Type::Bots;
-      return;
-    default:
-      UNREACHABLE();
-      type_ = Type::Recent;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ChannelParticipantFilter &filter) {
-  switch (filter.type_) {
-    case ChannelParticipantFilter::Type::Recent:
-      return string_builder << "Recent";
-    case ChannelParticipantFilter::Type::Contacts:
-      return string_builder << "Contacts \"" << filter.query_ << '"';
-    case ChannelParticipantFilter::Type::Administrators:
-      return string_builder << "Administrators";
-    case ChannelParticipantFilter::Type::Search:
-      return string_builder << "Search \"" << filter.query_ << '"';
-    case ChannelParticipantFilter::Type::Mention:
-      return string_builder << "Mention \"" << filter.query_ << "\" in thread of " << filter.top_thread_message_id_;
-    case ChannelParticipantFilter::Type::Restricted:
-      return string_builder << "Restricted \"" << filter.query_ << '"';
-    case ChannelParticipantFilter::Type::Banned:
-      return string_builder << "Banned \"" << filter.query_ << '"';
-    case ChannelParticipantFilter::Type::Bots:
-      return string_builder << "Bots";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChannelParticipantFilter.h b/third-party/td/td/td/telegram/ChannelParticipantFilter.h
deleted file mode 100644
index b6b4b7078a..0000000000
--- a/third-party/td/td/td/telegram/ChannelParticipantFilter.h
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ChannelParticipantFilter {
-  enum class Type : int32 { Recent, Contacts, Administrators, Search, Mention, Restricted, Banned, Bots };
-  Type type_;
-  string query_;
-  MessageId top_thread_message_id_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ChannelParticipantFilter &filter);
-
- public:
-  explicit ChannelParticipantFilter(const td_api::object_ptr<td_api::SupergroupMembersFilter> &filter);
-
-  tl_object_ptr<telegram_api::ChannelParticipantsFilter> get_input_channel_participants_filter() const;
-
-  bool is_administrators() const {
-    return type_ == Type::Administrators;
-  }
-
-  bool is_bots() const {
-    return type_ == Type::Bots;
-  }
-
-  bool is_recent() const {
-    return type_ == Type::Recent;
-  }
-
-  bool is_contacts() const {
-    return type_ == Type::Contacts;
-  }
-
-  bool is_search() const {
-    return type_ == Type::Search;
-  }
-
-  bool is_restricted() const {
-    return type_ == Type::Restricted;
-  }
-
-  bool is_banned() const {
-    return type_ == Type::Banned;
-  }
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ChannelParticipantFilter &filter);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChannelRecommendationManager.cpp b/third-party/td/td/td/telegram/ChannelRecommendationManager.cpp
deleted file mode 100644
index 0cf5e69d71..0000000000
--- a/third-party/td/td/td/telegram/ChannelRecommendationManager.cpp
+++ /dev/null
@@ -1,541 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ChannelRecommendationManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/Application.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class GetChannelRecommendationsQuery final : public Td::ResultHandler {
-  Promise<std::pair<int32, vector<tl_object_ptr<telegram_api::Chat>>>> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetChannelRecommendationsQuery(
-      Promise<std::pair<int32, vector<tl_object_ptr<telegram_api::Chat>>>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(!channel_id.is_valid() || input_channel != nullptr);
-    int32 flags = 0;
-    if (input_channel != nullptr) {
-      flags |= telegram_api::channels_getChannelRecommendations::CHANNEL_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_getChannelRecommendations(flags, std::move(input_channel))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getChannelRecommendations>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto chats_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChannelRecommendationsQuery: " << to_string(chats_ptr);
-    switch (chats_ptr->get_id()) {
-      case telegram_api::messages_chats::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chats>(chats_ptr);
-        auto total_count = static_cast<int32>(chats->chats_.size());
-        return promise_.set_value({total_count, std::move(chats->chats_)});
-      }
-      case telegram_api::messages_chatsSlice::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chatsSlice>(chats_ptr);
-        return promise_.set_value({chats->count_, std::move(chats->chats_)});
-      }
-      default:
-        UNREACHABLE();
-        return promise_.set_error(Status::Error("Unreachable"));
-    }
-  }
-
-  void on_error(Status status) final {
-    if (channel_id_.is_valid()) {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetChannelRecommendationsQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-template <class StorerT>
-void ChannelRecommendationManager::RecommendedDialogs::store(StorerT &storer) const {
-  bool has_dialog_ids = !dialog_ids_.empty();
-  bool has_total_count = static_cast<size_t>(total_count_) != dialog_ids_.size();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_dialog_ids);
-  STORE_FLAG(has_total_count);
-  END_STORE_FLAGS();
-  if (has_dialog_ids) {
-    td::store(dialog_ids_, storer);
-  }
-  store_time(next_reload_time_, storer);
-  if (has_total_count) {
-    td::store(total_count_, storer);
-  }
-}
-
-template <class ParserT>
-void ChannelRecommendationManager::RecommendedDialogs::parse(ParserT &parser) {
-  bool has_dialog_ids;
-  bool has_total_count;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_dialog_ids);
-  PARSE_FLAG(has_total_count);
-  END_PARSE_FLAGS();
-  if (has_dialog_ids) {
-    td::parse(dialog_ids_, parser);
-  }
-  parse_time(next_reload_time_, parser);
-  if (has_total_count) {
-    td::parse(total_count_, parser);
-  } else {
-    total_count_ = static_cast<int32>(dialog_ids_.size());
-  }
-}
-
-ChannelRecommendationManager::ChannelRecommendationManager(Td *td, ActorShared<> parent)
-    : td_(td), parent_(std::move(parent)) {
-  if (G()->use_sqlite_pmc() && !G()->use_message_database()) {
-    G()->td_db()->get_sqlite_pmc()->erase_by_prefix("channel_recommendations", Auto());
-  }
-}
-
-void ChannelRecommendationManager::tear_down() {
-  parent_.reset();
-}
-
-bool ChannelRecommendationManager::is_suitable_recommended_channel(DialogId dialog_id) const {
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return false;
-  }
-  return is_suitable_recommended_channel(dialog_id.get_channel_id());
-}
-
-bool ChannelRecommendationManager::is_suitable_recommended_channel(ChannelId channel_id) const {
-  auto status = td_->chat_manager_->get_channel_status(channel_id);
-  return !status.is_member() && td_->chat_manager_->have_input_peer_channel(channel_id, AccessRights::Read);
-}
-
-bool ChannelRecommendationManager::are_suitable_recommended_dialogs(
-    const RecommendedDialogs &recommended_dialogs) const {
-  for (auto recommended_dialog_id : recommended_dialogs.dialog_ids_) {
-    if (!is_suitable_recommended_channel(recommended_dialog_id)) {
-      return false;
-    }
-  }
-  auto is_premium = td_->option_manager_->get_option_boolean("is_premium");
-  auto have_all = recommended_dialogs.dialog_ids_.size() == static_cast<size_t>(recommended_dialogs.total_count_);
-  if (!have_all && is_premium) {
-    return false;
-  }
-  return true;
-}
-
-void ChannelRecommendationManager::get_recommended_channels(Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  bool use_database = true;
-  if (are_recommended_channels_inited_) {
-    if (are_suitable_recommended_dialogs(recommended_channels_)) {
-      auto next_reload_time = recommended_channels_.next_reload_time_;
-      promise.set_value(td_->dialog_manager_->get_chats_object(
-          recommended_channels_.total_count_, recommended_channels_.dialog_ids_, "get_recommended_channels"));
-      if (next_reload_time > Time::now()) {
-        return;
-      }
-      promise = {};
-    } else {
-      LOG(INFO) << "Drop cache for recommended chats";
-      are_recommended_channels_inited_ = false;
-      if (G()->use_message_database()) {
-        G()->td_db()->get_sqlite_pmc()->erase(get_recommended_channels_database_key(), Auto());
-      }
-    }
-    use_database = false;
-  }
-  load_recommended_channels(use_database, std::move(promise));
-}
-
-string ChannelRecommendationManager::get_recommended_channels_database_key() {
-  return "recommended_channels";
-}
-
-void ChannelRecommendationManager::load_recommended_channels(bool use_database,
-                                                             Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  get_recommended_channels_queries_.push_back(std::move(promise));
-  if (get_recommended_channels_queries_.size() == 1) {
-    if (G()->use_message_database() && use_database) {
-      G()->td_db()->get_sqlite_pmc()->get(
-          get_recommended_channels_database_key(), PromiseCreator::lambda([actor_id = actor_id(this)](string value) {
-            send_closure(actor_id, &ChannelRecommendationManager::on_load_recommended_channels_from_database,
-                         std::move(value));
-          }));
-    } else {
-      reload_recommended_channels();
-    }
-  }
-}
-
-void ChannelRecommendationManager::fail_load_recommended_channels_queries(Status &&error) {
-  CHECK(!get_recommended_channels_queries_.empty());
-  fail_promises(get_recommended_channels_queries_, std::move(error));
-}
-
-void ChannelRecommendationManager::finish_load_recommended_channels_queries(int32 total_count,
-                                                                            vector<DialogId> dialog_ids) {
-  are_recommended_channels_inited_ = true;
-  auto promises = std::move(get_recommended_channels_queries_);
-  CHECK(!promises.empty());
-  for (auto &promise : promises) {
-    if (promise) {
-      promise.set_value(
-          td_->dialog_manager_->get_chats_object(total_count, dialog_ids, "finish_load_recommended_channels_queries"));
-    }
-  }
-}
-
-void ChannelRecommendationManager::on_load_recommended_channels_from_database(string value) {
-  if (G()->close_flag()) {
-    return fail_load_recommended_channels_queries(G()->close_status());
-  }
-
-  if (value.empty()) {
-    return reload_recommended_channels();
-  }
-  if (log_event_parse(recommended_channels_, value).is_error()) {
-    recommended_channels_ = {};
-    G()->td_db()->get_sqlite_pmc()->erase(get_recommended_channels_database_key(), Auto());
-    return reload_recommended_channels();
-  }
-  Dependencies dependencies;
-  for (auto dialog_id : recommended_channels_.dialog_ids_) {
-    dependencies.add_dialog_and_dependencies(dialog_id);
-  }
-  if (!dependencies.resolve_force(td_, "on_load_recommended_channels_from_database") ||
-      !are_suitable_recommended_dialogs(recommended_channels_)) {
-    recommended_channels_ = {};
-    G()->td_db()->get_sqlite_pmc()->erase(get_recommended_channels_database_key(), Auto());
-    return reload_recommended_channels();
-  }
-
-  auto next_reload_time = recommended_channels_.next_reload_time_;
-  finish_load_recommended_channels_queries(recommended_channels_.total_count_, recommended_channels_.dialog_ids_);
-
-  if (next_reload_time <= Time::now()) {
-    load_recommended_channels(false, Auto());
-  }
-}
-
-void ChannelRecommendationManager::reload_recommended_channels() {
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<std::pair<int32, vector<tl_object_ptr<telegram_api::Chat>>>> &&result) {
-        send_closure(actor_id, &ChannelRecommendationManager::on_get_recommended_channels, std::move(result));
-      });
-  td_->create_handler<GetChannelRecommendationsQuery>(std::move(query_promise))->send(ChannelId());
-}
-
-void ChannelRecommendationManager::on_get_recommended_channels(
-    Result<std::pair<int32, vector<tl_object_ptr<telegram_api::Chat>>>> &&r_chats) {
-  G()->ignore_result_if_closing(r_chats);
-
-  if (r_chats.is_error()) {
-    return fail_load_recommended_channels_queries(r_chats.move_as_error());
-  }
-
-  auto chats = r_chats.move_as_ok();
-  auto total_count = chats.first;
-  auto channel_ids = td_->chat_manager_->get_channel_ids(std::move(chats.second), "on_get_recommended_channels");
-  vector<DialogId> dialog_ids;
-  if (total_count < static_cast<int32>(channel_ids.size())) {
-    LOG(ERROR) << "Receive total_count = " << total_count << " and " << channel_ids.size() << " recommended chats";
-    total_count = static_cast<int32>(channel_ids.size());
-  }
-  for (auto recommended_channel_id : channel_ids) {
-    auto recommended_dialog_id = DialogId(recommended_channel_id);
-    td_->dialog_manager_->force_create_dialog(recommended_dialog_id, "on_get_recommended_channels");
-    if (is_suitable_recommended_channel(recommended_channel_id)) {
-      dialog_ids.push_back(recommended_dialog_id);
-    } else {
-      total_count--;
-    }
-  }
-  recommended_channels_.total_count_ = total_count;
-  recommended_channels_.dialog_ids_ = dialog_ids;
-  recommended_channels_.next_reload_time_ = Time::now() + CHANNEL_RECOMMENDATIONS_CACHE_TIME;
-
-  if (G()->use_message_database()) {
-    G()->td_db()->get_sqlite_pmc()->set(get_recommended_channels_database_key(),
-                                        log_event_store(recommended_channels_).as_slice().str(), Promise<Unit>());
-  }
-
-  finish_load_recommended_channels_queries(total_count, std::move(dialog_ids));
-}
-
-void ChannelRecommendationManager::get_channel_recommendations(
-    DialogId dialog_id, bool return_local, Promise<td_api::object_ptr<td_api::chats>> &&chats_promise,
-    Promise<td_api::object_ptr<td_api::count>> &&count_promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "get_channel_recommendations")) {
-    if (chats_promise) {
-      chats_promise.set_error(Status::Error(400, "Chat not found"));
-    }
-    if (count_promise) {
-      count_promise.set_error(Status::Error(400, "Chat not found"));
-    }
-    return;
-  }
-  if (dialog_id.get_type() != DialogType::Channel) {
-    if (chats_promise) {
-      chats_promise.set_value(td_api::make_object<td_api::chats>());
-    }
-    if (count_promise) {
-      count_promise.set_value(td_api::make_object<td_api::count>(0));
-    }
-    return;
-  }
-  auto channel_id = dialog_id.get_channel_id();
-  if (!td_->chat_manager_->is_broadcast_channel(channel_id) ||
-      td_->chat_manager_->get_input_channel(channel_id) == nullptr) {
-    if (chats_promise) {
-      chats_promise.set_value(td_api::make_object<td_api::chats>());
-    }
-    if (count_promise) {
-      count_promise.set_value(td_api::make_object<td_api::count>(0));
-    }
-    return;
-  }
-  bool use_database = true;
-  auto it = channel_recommended_dialogs_.find(channel_id);
-  if (it != channel_recommended_dialogs_.end()) {
-    if (are_suitable_recommended_dialogs(it->second)) {
-      auto next_reload_time = it->second.next_reload_time_;
-      if (chats_promise) {
-        chats_promise.set_value(td_->dialog_manager_->get_chats_object(it->second.total_count_, it->second.dialog_ids_,
-                                                                       "get_channel_recommendations"));
-      }
-      if (count_promise) {
-        count_promise.set_value(td_api::make_object<td_api::count>(it->second.total_count_));
-      }
-      if (next_reload_time > Time::now()) {
-        return;
-      }
-      chats_promise = {};
-      count_promise = {};
-    } else {
-      LOG(INFO) << "Drop cache for similar chats of " << dialog_id;
-      channel_recommended_dialogs_.erase(it);
-      if (G()->use_message_database()) {
-        G()->td_db()->get_sqlite_pmc()->erase(get_channel_recommendations_database_key(channel_id), Auto());
-      }
-    }
-    use_database = false;
-  }
-  load_channel_recommendations(channel_id, use_database, return_local, std::move(chats_promise),
-                               std::move(count_promise));
-}
-
-string ChannelRecommendationManager::get_channel_recommendations_database_key(ChannelId channel_id) {
-  return PSTRING() << "channel_recommendations" << channel_id.get();
-}
-
-void ChannelRecommendationManager::load_channel_recommendations(
-    ChannelId channel_id, bool use_database, bool return_local,
-    Promise<td_api::object_ptr<td_api::chats>> &&chats_promise,
-    Promise<td_api::object_ptr<td_api::count>> &&count_promise) {
-  if (count_promise) {
-    get_channel_recommendation_count_queries_[return_local][channel_id].push_back(std::move(count_promise));
-  }
-  auto &queries = get_channel_recommendations_queries_[channel_id];
-  queries.push_back(std::move(chats_promise));
-  if (queries.size() == 1) {
-    if (G()->use_message_database() && use_database) {
-      G()->td_db()->get_sqlite_pmc()->get(
-          get_channel_recommendations_database_key(channel_id),
-          PromiseCreator::lambda([actor_id = actor_id(this), channel_id](string value) {
-            send_closure(actor_id, &ChannelRecommendationManager::on_load_channel_recommendations_from_database,
-                         channel_id, std::move(value));
-          }));
-    } else {
-      reload_channel_recommendations(channel_id);
-    }
-  }
-}
-
-void ChannelRecommendationManager::fail_load_channel_recommendations_queries(ChannelId channel_id, Status &&error) {
-  for (int return_local = 0; return_local < 2; return_local++) {
-    auto it = get_channel_recommendation_count_queries_[return_local].find(channel_id);
-    if (it != get_channel_recommendation_count_queries_[return_local].end()) {
-      auto promises = std::move(it->second);
-      CHECK(!promises.empty());
-      get_channel_recommendation_count_queries_[return_local].erase(it);
-      fail_promises(promises, error.clone());
-    }
-  }
-  auto it = get_channel_recommendations_queries_.find(channel_id);
-  CHECK(it != get_channel_recommendations_queries_.end());
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  get_channel_recommendations_queries_.erase(it);
-  fail_promises(promises, std::move(error));
-}
-
-void ChannelRecommendationManager::finish_load_channel_recommendations_queries(ChannelId channel_id, int32 total_count,
-                                                                               vector<DialogId> dialog_ids) {
-  for (int return_local = 0; return_local < 2; return_local++) {
-    auto it = get_channel_recommendation_count_queries_[return_local].find(channel_id);
-    if (it != get_channel_recommendation_count_queries_[return_local].end()) {
-      auto promises = std::move(it->second);
-      CHECK(!promises.empty());
-      get_channel_recommendation_count_queries_[return_local].erase(it);
-      for (auto &promise : promises) {
-        promise.set_value(td_api::make_object<td_api::count>(total_count));
-      }
-    }
-  }
-  auto it = get_channel_recommendations_queries_.find(channel_id);
-  CHECK(it != get_channel_recommendations_queries_.end());
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  get_channel_recommendations_queries_.erase(it);
-  for (auto &promise : promises) {
-    if (promise) {
-      promise.set_value(td_->dialog_manager_->get_chats_object(total_count, dialog_ids,
-                                                               "finish_load_channel_recommendations_queries"));
-    }
-  }
-}
-
-void ChannelRecommendationManager::on_load_channel_recommendations_from_database(ChannelId channel_id, string value) {
-  if (G()->close_flag()) {
-    return fail_load_channel_recommendations_queries(channel_id, G()->close_status());
-  }
-
-  if (value.empty()) {
-    return reload_channel_recommendations(channel_id);
-  }
-  auto &recommended_dialogs = channel_recommended_dialogs_[channel_id];
-  if (log_event_parse(recommended_dialogs, value).is_error()) {
-    channel_recommended_dialogs_.erase(channel_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_channel_recommendations_database_key(channel_id), Auto());
-    return reload_channel_recommendations(channel_id);
-  }
-  Dependencies dependencies;
-  for (auto dialog_id : recommended_dialogs.dialog_ids_) {
-    dependencies.add_dialog_and_dependencies(dialog_id);
-  }
-  if (!dependencies.resolve_force(td_, "on_load_channel_recommendations_from_database") ||
-      !are_suitable_recommended_dialogs(recommended_dialogs)) {
-    channel_recommended_dialogs_.erase(channel_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_channel_recommendations_database_key(channel_id), Auto());
-    return reload_channel_recommendations(channel_id);
-  }
-
-  auto next_reload_time = recommended_dialogs.next_reload_time_;
-  finish_load_channel_recommendations_queries(channel_id, recommended_dialogs.total_count_,
-                                              recommended_dialogs.dialog_ids_);
-
-  if (next_reload_time <= Time::now()) {
-    load_channel_recommendations(channel_id, false, false, Auto(), Auto());
-  }
-}
-
-void ChannelRecommendationManager::reload_channel_recommendations(ChannelId channel_id) {
-  auto it = get_channel_recommendation_count_queries_[1].find(channel_id);
-  if (it != get_channel_recommendation_count_queries_[1].end()) {
-    auto promises = std::move(it->second);
-    CHECK(!promises.empty());
-    get_channel_recommendation_count_queries_[1].erase(it);
-    for (auto &promise : promises) {
-      promise.set_value(td_api::make_object<td_api::count>(-1));
-    }
-  }
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), channel_id](
-                                 Result<std::pair<int32, vector<tl_object_ptr<telegram_api::Chat>>>> &&result) {
-        send_closure(actor_id, &ChannelRecommendationManager::on_get_channel_recommendations, channel_id,
-                     std::move(result));
-      });
-  td_->create_handler<GetChannelRecommendationsQuery>(std::move(query_promise))->send(channel_id);
-}
-
-void ChannelRecommendationManager::on_get_channel_recommendations(
-    ChannelId channel_id, Result<std::pair<int32, vector<tl_object_ptr<telegram_api::Chat>>>> &&r_chats) {
-  G()->ignore_result_if_closing(r_chats);
-
-  if (r_chats.is_error()) {
-    return fail_load_channel_recommendations_queries(channel_id, r_chats.move_as_error());
-  }
-
-  auto chats = r_chats.move_as_ok();
-  auto total_count = chats.first;
-  auto channel_ids = td_->chat_manager_->get_channel_ids(std::move(chats.second), "on_get_channel_recommendations");
-  vector<DialogId> dialog_ids;
-  if (total_count < static_cast<int32>(channel_ids.size())) {
-    LOG(ERROR) << "Receive total_count = " << total_count << " and " << channel_ids.size() << " similar chats for "
-               << channel_id;
-    total_count = static_cast<int32>(channel_ids.size());
-  }
-  for (auto recommended_channel_id : channel_ids) {
-    auto recommended_dialog_id = DialogId(recommended_channel_id);
-    td_->dialog_manager_->force_create_dialog(recommended_dialog_id, "on_get_channel_recommendations");
-    if (is_suitable_recommended_channel(recommended_channel_id)) {
-      dialog_ids.push_back(recommended_dialog_id);
-    } else {
-      total_count--;
-    }
-  }
-  auto &recommended_dialogs = channel_recommended_dialogs_[channel_id];
-  recommended_dialogs.total_count_ = total_count;
-  recommended_dialogs.dialog_ids_ = dialog_ids;
-  recommended_dialogs.next_reload_time_ = Time::now() + CHANNEL_RECOMMENDATIONS_CACHE_TIME;
-
-  if (G()->use_message_database()) {
-    G()->td_db()->get_sqlite_pmc()->set(get_channel_recommendations_database_key(channel_id),
-                                        log_event_store(recommended_dialogs).as_slice().str(), Promise<Unit>());
-  }
-
-  finish_load_channel_recommendations_queries(channel_id, total_count, std::move(dialog_ids));
-}
-
-void ChannelRecommendationManager::open_channel_recommended_channel(DialogId dialog_id, DialogId opened_dialog_id,
-                                                                    Promise<Unit> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "open_channel_recommended_channel") ||
-      !td_->dialog_manager_->have_dialog_force(opened_dialog_id, "open_channel_recommended_channel")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (dialog_id.get_type() != DialogType::Channel || opened_dialog_id.get_type() != DialogType::Channel) {
-    return promise.set_error(Status::Error(400, "Invalid chat specified"));
-  }
-  vector<telegram_api::object_ptr<telegram_api::jsonObjectValue>> data;
-  data.push_back(telegram_api::make_object<telegram_api::jsonObjectValue>(
-      "ref_channel_id", make_tl_object<telegram_api::jsonString>(to_string(dialog_id.get_channel_id().get()))));
-  data.push_back(telegram_api::make_object<telegram_api::jsonObjectValue>(
-      "open_channel_id", make_tl_object<telegram_api::jsonString>(to_string(opened_dialog_id.get_channel_id().get()))));
-  save_app_log(td_, "channels.open_recommended_channel", DialogId(),
-               telegram_api::make_object<telegram_api::jsonObject>(std::move(data)), std::move(promise));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChannelRecommendationManager.h b/third-party/td/td/td/telegram/ChannelRecommendationManager.h
deleted file mode 100644
index 4a572d5954..0000000000
--- a/third-party/td/td/td/telegram/ChannelRecommendationManager.h
+++ /dev/null
@@ -1,108 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class ChannelRecommendationManager final : public Actor {
- public:
-  ChannelRecommendationManager(Td *td, ActorShared<> parent);
-
-  void get_recommended_channels(Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void get_channel_recommendations(DialogId dialog_id, bool return_local,
-                                   Promise<td_api::object_ptr<td_api::chats>> &&chats_promise,
-                                   Promise<td_api::object_ptr<td_api::count>> &&count_promise);
-
-  void open_channel_recommended_channel(DialogId dialog_id, DialogId opened_dialog_id, Promise<Unit> &&promise);
-
- private:
-  static constexpr int32 CHANNEL_RECOMMENDATIONS_CACHE_TIME = 86400;  // some reasonable limit
-
-  struct RecommendedDialogs {
-    int32 total_count_ = 0;
-    vector<DialogId> dialog_ids_;
-    double next_reload_time_ = 0.0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  void tear_down() final;
-
-  bool is_suitable_recommended_channel(DialogId dialog_id) const;
-
-  bool is_suitable_recommended_channel(ChannelId channel_id) const;
-
-  bool are_suitable_recommended_dialogs(const RecommendedDialogs &recommended_dialogs) const;
-
-  static string get_recommended_channels_database_key();
-
-  void load_recommended_channels(bool use_database, Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void fail_load_recommended_channels_queries(Status &&error);
-
-  void finish_load_recommended_channels_queries(int32 total_count, vector<DialogId> dialog_ids);
-
-  void on_load_recommended_channels_from_database(string value);
-
-  void reload_recommended_channels();
-
-  void on_get_recommended_channels(Result<std::pair<int32, vector<tl_object_ptr<telegram_api::Chat>>>> &&r_chats);
-
-  static string get_channel_recommendations_database_key(ChannelId channel_id);
-
-  void load_channel_recommendations(ChannelId channel_id, bool use_database, bool return_local,
-                                    Promise<td_api::object_ptr<td_api::chats>> &&chats_promise,
-                                    Promise<td_api::object_ptr<td_api::count>> &&count_promise);
-
-  void fail_load_channel_recommendations_queries(ChannelId channel_id, Status &&error);
-
-  void finish_load_channel_recommendations_queries(ChannelId channel_id, int32 total_count,
-                                                   vector<DialogId> dialog_ids);
-
-  void on_load_channel_recommendations_from_database(ChannelId channel_id, string value);
-
-  void reload_channel_recommendations(ChannelId channel_id);
-
-  void on_get_channel_recommendations(
-      ChannelId channel_id, Result<std::pair<int32, vector<telegram_api::object_ptr<telegram_api::Chat>>>> &&r_chats);
-
-  FlatHashMap<ChannelId, RecommendedDialogs, ChannelIdHash> channel_recommended_dialogs_;
-  FlatHashMap<ChannelId, vector<Promise<td_api::object_ptr<td_api::chats>>>, ChannelIdHash>
-      get_channel_recommendations_queries_;
-  FlatHashMap<ChannelId, vector<Promise<td_api::object_ptr<td_api::count>>>, ChannelIdHash>
-      get_channel_recommendation_count_queries_[2];
-
-  RecommendedDialogs recommended_channels_;
-  vector<Promise<td_api::object_ptr<td_api::chats>>> get_recommended_channels_queries_;
-  bool are_recommended_channels_inited_ = false;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChannelType.h b/third-party/td/td/td/telegram/ChannelType.h
deleted file mode 100644
index 1fe0c00e3e..0000000000
--- a/third-party/td/td/td/telegram/ChannelType.h
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-enum class ChannelType : uint8 { Broadcast, Megagroup, Unknown };
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChatId.h b/third-party/td/td/td/telegram/ChatId.h
deleted file mode 100644
index e2a0975a10..0000000000
--- a/third-party/td/td/td/telegram/ChatId.h
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class ChatId {
-  int64 id = 0;
-
- public:
-  static constexpr int64 MAX_CHAT_ID = 999999999999ll;
-
-  ChatId() = default;
-
-  explicit constexpr ChatId(int64 chat_id) : id(chat_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  ChatId(T chat_id) = delete;
-
-  bool is_valid() const {
-    return 0 < id && id <= MAX_CHAT_ID;
-  }
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const ChatId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const ChatId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::Support64BitIds)) {
-      id = parser.fetch_long();
-    } else {
-      id = parser.fetch_int();
-    }
-  }
-};
-
-struct ChatIdHash {
-  uint32 operator()(ChatId chat_id) const {
-    return Hash<int64>()(chat_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, ChatId chat_id) {
-  return string_builder << "basic group " << chat_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChatManager.cpp b/third-party/td/td/td/telegram/ChatManager.cpp
deleted file mode 100644
index 70d4d4ac3b..0000000000
--- a/third-party/td/td/td/telegram/ChatManager.cpp
+++ /dev/null
@@ -1,9103 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ChatManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BotVerification.h"
-#include "td/telegram/BotVerification.hpp"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogAdministrator.h"
-#include "td/telegram/DialogInviteLink.hpp"
-#include "td/telegram/DialogInviteLinkManager.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/EmojiStatus.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/InputGroupCallId.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/MessageTtl.h"
-#include "td/telegram/MinChannel.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/MissingInvitee.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/PeerColor.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/SuggestedActionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/VerificationStatus.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/actor/MultiPromise.h"
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/utf8.h"
-
-#include <limits>
-#include <utility>
-
-namespace td {
-
-class CreateChatQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::createdBasicGroupChat>> promise_;
-
- public:
-  explicit CreateChatQuery(Promise<td_api::object_ptr<td_api::createdBasicGroupChat>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(vector<tl_object_ptr<telegram_api::InputUser>> &&input_users, const string &title, MessageTtl message_ttl) {
-    int32 flags = telegram_api::messages_createChat::TTL_PERIOD_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_createChat(flags, std::move(input_users), title, message_ttl.get_input_ttl_period())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_createChat>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CreateChatQuery: " << to_string(ptr);
-    td_->messages_manager_->on_create_new_dialog(
-        std::move(ptr->updates_), MissingInvitees(std::move(ptr->missing_invitees_)), std::move(promise_), Auto());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CreateChannelQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chat>> promise_;
-
- public:
-  explicit CreateChannelQuery(Promise<td_api::object_ptr<td_api::chat>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &title, bool is_forum, bool is_megagroup, const string &about, const DialogLocation &location,
-            bool for_import, MessageTtl message_ttl) {
-    int32 flags = telegram_api::channels_createChannel::TTL_PERIOD_MASK;
-    if (!location.empty()) {
-      flags |= telegram_api::channels_createChannel::GEO_POINT_MASK;
-    }
-
-    auto is_broadcast = !is_forum && !is_megagroup;
-    send_query(G()->net_query_creator().create(telegram_api::channels_createChannel(
-        flags, is_broadcast, is_megagroup && !is_forum, is_forum, for_import, title, about,
-        location.get_input_geo_point(), location.get_address(), message_ttl.get_input_ttl_period())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_createChannel>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->messages_manager_->on_create_new_dialog(result_ptr.move_as_ok(), MissingInvitees(), Auto(),
-                                                 std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateChannelUsernameQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  string username_;
-
- public:
-  explicit UpdateChannelUsernameQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const string &username) {
-    channel_id_ = channel_id;
-    username_ = username;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_updateUsername(std::move(input_channel), username), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_updateUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for UpdateChannelUsernameQuery: " << result;
-    if (!result) {
-      return on_error(Status::Error(500, "Supergroup username is not updated"));
-    }
-
-    td_->chat_manager_->on_update_channel_editable_username(channel_id_, std::move(username_));
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED" || status.message() == "CHAT_NOT_MODIFIED") {
-      td_->chat_manager_->on_update_channel_editable_username(channel_id_, std::move(username_));
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "UpdateChannelUsernameQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleChannelUsernameQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  string username_;
-  bool is_active_;
-
- public:
-  explicit ToggleChannelUsernameQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, string &&username, bool is_active) {
-    channel_id_ = channel_id;
-    username_ = std::move(username);
-    is_active_ = is_active;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_toggleUsername(std::move(input_channel), username_, is_active_), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for ToggleChannelUsernameQuery: " << result;
-    td_->chat_manager_->on_update_channel_username_is_active(channel_id_, std::move(username_), is_active_,
-                                                             std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED" || status.message() == "CHAT_NOT_MODIFIED") {
-      td_->chat_manager_->on_update_channel_username_is_active(channel_id_, std::move(username_), is_active_,
-                                                               std::move(promise_));
-      return;
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ToggleChannelUsernameQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeactivateAllChannelUsernamesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit DeactivateAllChannelUsernamesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::channels_deactivateAllUsernames(std::move(input_channel)),
-                                               {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_deactivateAllUsernames>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for DeactivateAllChannelUsernamesQuery: " << result;
-    td_->chat_manager_->on_deactivate_channel_usernames(channel_id_, std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED" || status.message() == "CHAT_NOT_MODIFIED") {
-      td_->chat_manager_->on_deactivate_channel_usernames(channel_id_, std::move(promise_));
-      return;
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "DeactivateAllChannelUsernamesQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderChannelUsernamesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  vector<string> usernames_;
-
- public:
-  explicit ReorderChannelUsernamesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, vector<string> &&usernames) {
-    channel_id_ = channel_id;
-    usernames_ = usernames;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_reorderUsernames(std::move(input_channel), std::move(usernames)), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_reorderUsernames>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for ReorderChannelUsernamesQuery: " << result;
-    if (!result) {
-      return on_error(Status::Error(500, "Supergroup usernames weren't updated"));
-    }
-
-    td_->chat_manager_->on_update_channel_active_usernames_order(channel_id_, std::move(usernames_),
-                                                                 std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED" || status.message() == "CHAT_NOT_MODIFIED") {
-      td_->chat_manager_->on_update_channel_active_usernames_order(channel_id_, std::move(usernames_),
-                                                                   std::move(promise_));
-      return;
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ReorderChannelUsernamesQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateChannelColorQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit UpdateChannelColorQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool for_profile, AccentColorId accent_color_id,
-            CustomEmojiId background_custom_emoji_id) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    int32 flags = 0;
-    if (accent_color_id.is_valid()) {
-      flags |= telegram_api::channels_updateColor::COLOR_MASK;
-    }
-    if (background_custom_emoji_id.is_valid()) {
-      flags |= telegram_api::channels_updateColor::BACKGROUND_EMOJI_ID_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_updateColor(flags, for_profile, std::move(input_channel), accent_color_id.get(),
-                                           background_custom_emoji_id.get()),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_updateColor>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UpdateChannelColorQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "UpdateChannelColorQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateChannelEmojiStatusQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit UpdateChannelEmojiStatusQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const unique_ptr<EmojiStatus> &emoji_status) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_updateEmojiStatus(std::move(input_channel),
-                                                 EmojiStatus::get_input_emoji_status(emoji_status)),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_updateEmojiStatus>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UpdateChannelEmojiStatusQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "UpdateChannelEmojiStatusQuery");
-      get_recent_emoji_statuses(td_, Auto());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetChannelStickerSetQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  StickerSetId sticker_set_id_;
-
- public:
-  explicit SetChannelStickerSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, StickerSetId sticker_set_id,
-            telegram_api::object_ptr<telegram_api::InputStickerSet> &&input_sticker_set) {
-    channel_id_ = channel_id;
-    sticker_set_id_ = sticker_set_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_setStickers(std::move(input_channel), std::move(input_sticker_set)), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_setStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for SetChannelStickerSetQuery: " << result;
-    if (!result) {
-      return on_error(Status::Error(500, "Supergroup sticker set not updated"));
-    }
-
-    td_->chat_manager_->on_update_channel_sticker_set(channel_id_, sticker_set_id_);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      td_->chat_manager_->on_update_channel_sticker_set(channel_id_, sticker_set_id_);
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "SetChannelStickerSetQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetChannelEmojiStickerSetQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  StickerSetId sticker_set_id_;
-
- public:
-  explicit SetChannelEmojiStickerSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, StickerSetId sticker_set_id,
-            telegram_api::object_ptr<telegram_api::InputStickerSet> &&input_sticker_set) {
-    channel_id_ = channel_id;
-    sticker_set_id_ = sticker_set_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_setEmojiStickers(std::move(input_channel), std::move(input_sticker_set)),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_setEmojiStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for SetChannelEmojiStickerSetQuery: " << result;
-    if (!result) {
-      return on_error(Status::Error(500, "Supergroup custom emoji sticker set not updated"));
-    }
-
-    td_->chat_manager_->on_update_channel_emoji_sticker_set(channel_id_, sticker_set_id_);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      td_->chat_manager_->on_update_channel_emoji_sticker_set(channel_id_, sticker_set_id_);
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "SetChannelEmojiStickerSetQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetChannelBoostsToUnblockRestrictionsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  int32 unrestrict_boost_count_;
-
- public:
-  explicit SetChannelBoostsToUnblockRestrictionsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, int32 unrestrict_boost_count) {
-    channel_id_ = channel_id;
-    unrestrict_boost_count_ = unrestrict_boost_count;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_setBoostsToUnblockRestrictions(std::move(input_channel), unrestrict_boost_count),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_setBoostsToUnblockRestrictions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for SetChannelBoostsToUnblockRestrictionsQuery: " << to_string(ptr);
-    td_->chat_manager_->on_update_channel_unrestrict_boost_count(channel_id_, unrestrict_boost_count_);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      td_->chat_manager_->on_update_channel_unrestrict_boost_count(channel_id_, unrestrict_boost_count_);
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "SetChannelBoostsToUnblockRestrictionsQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleChannelSignaturesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ToggleChannelSignaturesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool sign_messages, bool show_message_sender) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_toggleSignatures(0, sign_messages, show_message_sender, std::move(input_channel)),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleSignatures>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleChannelSignaturesQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ToggleChannelSignaturesQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleChannelJoinToSendQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ToggleChannelJoinToSendQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool join_to_send) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_toggleJoinToSend(std::move(input_channel), join_to_send), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleJoinToSend>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleChannelJoinToSendQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ToggleChannelJoinToSendQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleChannelJoinRequestQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ToggleChannelJoinRequestQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool join_request) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_toggleJoinRequest(std::move(input_channel), join_request), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleJoinRequest>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleChannelJoinRequestQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ToggleChannelJoinRequestQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class TogglePrehistoryHiddenQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  bool is_all_history_available_;
-
- public:
-  explicit TogglePrehistoryHiddenQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool is_all_history_available) {
-    channel_id_ = channel_id;
-    is_all_history_available_ = is_all_history_available;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_togglePreHistoryHidden(std::move(input_channel), !is_all_history_available),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_togglePreHistoryHidden>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for TogglePrehistoryHiddenQuery: " << to_string(ptr);
-
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr),
-        PromiseCreator::lambda([actor_id = G()->chat_manager(), promise = std::move(promise_), channel_id = channel_id_,
-                                is_all_history_available = is_all_history_available_](Unit result) mutable {
-          send_closure(actor_id, &ChatManager::on_update_channel_is_all_history_available, channel_id,
-                       is_all_history_available, std::move(promise));
-        }));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "TogglePrehistoryHiddenQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RestrictSponsoredMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  bool can_have_sponsored_messages_;
-
- public:
-  explicit RestrictSponsoredMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool can_have_sponsored_messages) {
-    channel_id_ = channel_id;
-    can_have_sponsored_messages_ = can_have_sponsored_messages;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_restrictSponsoredMessages(std::move(input_channel), !can_have_sponsored_messages),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_restrictSponsoredMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for RestrictSponsoredMessagesQuery: " << to_string(ptr);
-
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr),
-        PromiseCreator::lambda([actor_id = G()->chat_manager(), promise = std::move(promise_), channel_id = channel_id_,
-                                can_have_sponsored_messages = can_have_sponsored_messages_](Unit result) mutable {
-          send_closure(actor_id, &ChatManager::on_update_channel_can_have_sponsored_messages, channel_id,
-                       can_have_sponsored_messages, std::move(promise));
-        }));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "RestrictSponsoredMessagesQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleParticipantsHiddenQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  bool has_hidden_participants_;
-
- public:
-  explicit ToggleParticipantsHiddenQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool has_hidden_participants) {
-    channel_id_ = channel_id;
-    has_hidden_participants_ = has_hidden_participants;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_toggleParticipantsHidden(std::move(input_channel), has_hidden_participants),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleParticipantsHidden>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleParticipantsHiddenQuery: " << to_string(ptr);
-
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr),
-        PromiseCreator::lambda([actor_id = G()->chat_manager(), promise = std::move(promise_), channel_id = channel_id_,
-                                has_hidden_participants = has_hidden_participants_](Unit result) mutable {
-          send_closure(actor_id, &ChatManager::on_update_channel_has_hidden_participants, channel_id,
-                       has_hidden_participants, std::move(promise));
-        }));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ToggleParticipantsHiddenQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleAntiSpamQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  bool has_aggressive_anti_spam_enabled_;
-
- public:
-  explicit ToggleAntiSpamQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool has_aggressive_anti_spam_enabled) {
-    channel_id_ = channel_id;
-    has_aggressive_anti_spam_enabled_ = has_aggressive_anti_spam_enabled;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_toggleAntiSpam(std::move(input_channel), has_aggressive_anti_spam_enabled),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleAntiSpam>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleAntiSpamQuery: " << to_string(ptr);
-
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr),
-        PromiseCreator::lambda(
-            [actor_id = G()->chat_manager(), promise = std::move(promise_), channel_id = channel_id_,
-             has_aggressive_anti_spam_enabled = has_aggressive_anti_spam_enabled_](Unit result) mutable {
-              send_closure(actor_id, &ChatManager::on_update_channel_has_aggressive_anti_spam_enabled, channel_id,
-                           has_aggressive_anti_spam_enabled, std::move(promise));
-            }));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ToggleAntiSpamQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleForumQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ToggleForumQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool is_forum) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::channels_toggleForum(std::move(input_channel), is_forum),
-                                               {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleForum>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleForumQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ToggleForumQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ConvertToGigagroupQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ConvertToGigagroupQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::channels_convertToGigagroup(std::move(input_channel)),
-                                               {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_convertToGigagroup>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ConvertToGigagroupQuery: " << to_string(ptr);
-
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      promise_.set_value(Unit());
-      return;
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ConvertToGigagroupQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditChatAboutQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  string about_;
-
-  void on_success() {
-    switch (dialog_id_.get_type()) {
-      case DialogType::Chat:
-        return td_->chat_manager_->on_update_chat_description(dialog_id_.get_chat_id(), std::move(about_));
-      case DialogType::Channel:
-        return td_->chat_manager_->on_update_channel_description(dialog_id_.get_channel_id(), std::move(about_));
-      case DialogType::User:
-      case DialogType::SecretChat:
-      case DialogType::None:
-        UNREACHABLE();
-    }
-  }
-
- public:
-  explicit EditChatAboutQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &about) {
-    dialog_id_ = dialog_id;
-    about_ = about;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_editChatAbout(std::move(input_peer), about),
-                                               {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editChatAbout>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for EditChatAboutQuery: " << result;
-    if (!result) {
-      return on_error(Status::Error(500, "Chat description is not updated"));
-    }
-
-    on_success();
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_ABOUT_NOT_MODIFIED" || status.message() == "CHAT_NOT_MODIFIED") {
-      on_success();
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditChatAboutQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetDiscussionGroupQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId broadcast_channel_id_;
-  ChannelId group_channel_id_;
-
- public:
-  explicit SetDiscussionGroupQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId broadcast_channel_id,
-            telegram_api::object_ptr<telegram_api::InputChannel> broadcast_input_channel, ChannelId group_channel_id,
-            telegram_api::object_ptr<telegram_api::InputChannel> group_input_channel) {
-    broadcast_channel_id_ = broadcast_channel_id;
-    group_channel_id_ = group_channel_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_setDiscussionGroup(std::move(broadcast_input_channel), std::move(group_input_channel)),
-        {{broadcast_channel_id}, {group_channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_setDiscussionGroup>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(INFO, !result) << "Set discussion group has failed";
-
-    td_->chat_manager_->on_update_channel_linked_channel_id(broadcast_channel_id_, group_channel_id_);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "LINK_NOT_MODIFIED") {
-      return promise_.set_value(Unit());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditLocationQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  DialogLocation location_;
-
- public:
-  explicit EditLocationQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const DialogLocation &location) {
-    channel_id_ = channel_id;
-    location_ = location;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_editLocation(std::move(input_channel), location_.get_input_geo_point(),
-                                            location_.get_address()),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_editLocation>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(INFO, !result) << "Edit chat location has failed";
-
-    td_->chat_manager_->on_update_channel_location(channel_id_, location_);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "EditLocationQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleSlowModeQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  int32 slow_mode_delay_ = 0;
-
- public:
-  explicit ToggleSlowModeQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, int32 slow_mode_delay) {
-    channel_id_ = channel_id;
-    slow_mode_delay_ = slow_mode_delay;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_toggleSlowMode(std::move(input_channel), slow_mode_delay), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleSlowMode>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleSlowModeQuery: " << to_string(ptr);
-
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr),
-        PromiseCreator::lambda([actor_id = G()->chat_manager(), promise = std::move(promise_), channel_id = channel_id_,
-                                slow_mode_delay = slow_mode_delay_](Unit result) mutable {
-          send_closure(actor_id, &ChatManager::on_update_channel_slow_mode_delay, channel_id, slow_mode_delay,
-                       std::move(promise));
-        }));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      td_->chat_manager_->on_update_channel_slow_mode_delay(channel_id_, slow_mode_delay_, Promise<Unit>());
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ToggleSlowModeQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReportChannelSpamQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  DialogId sender_dialog_id_;
-
- public:
-  explicit ReportChannelSpamQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, DialogId sender_dialog_id, const vector<MessageId> &message_ids) {
-    channel_id_ = channel_id;
-    sender_dialog_id_ = sender_dialog_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(sender_dialog_id, AccessRights::Know);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(telegram_api::channels_reportSpam(
-        std::move(input_channel), std::move(input_peer), MessageId::get_server_message_ids(message_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_reportSpam>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(INFO, !result) << "Report spam has failed in " << channel_id_;
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (sender_dialog_id_.get_type() != DialogType::Channel) {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "ReportChannelSpamQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReportChannelAntiSpamFalsePositiveQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ReportChannelAntiSpamFalsePositiveQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, MessageId message_id) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(telegram_api::channels_reportAntiSpamFalsePositive(
-        std::move(input_channel), message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_reportAntiSpamFalsePositive>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG_IF(INFO, !result) << "Report anti-spam false positive has failed in " << channel_id_;
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "ReportChannelAntiSpamFalsePositiveQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdatePaidMessagesPriceQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit UpdatePaidMessagesPriceQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, int64 send_paid_messages_stars) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_updatePaidMessagesPrice(std::move(input_channel), send_paid_messages_stars)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_updatePaidMessagesPrice>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UpdatePaidMessagesPriceQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "UpdatePaidMessagesPriceQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteChatQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteChatQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChatId chat_id) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_deleteChat(chat_id.get()), {{chat_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteChat>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(INFO) << "Receive result for DeleteChatQuery: " << result_ptr.ok();
-    td_->updates_manager_->get_difference("DeleteChatQuery");
-    td_->updates_manager_->on_get_updates(make_tl_object<telegram_api::updates>(), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteChannelQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit DeleteChannelQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::channels_deleteChannel(std::move(input_channel)),
-                                               {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_deleteChannel>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteChannelQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "DeleteChannelQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetCreatedPublicChannelsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  PublicDialogType type_;
-
- public:
-  explicit GetCreatedPublicChannelsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(PublicDialogType type, bool check_limit) {
-    type_ = type;
-    send_query(G()->net_query_creator().create(telegram_api::channels_getAdminedPublicChannels(
-        0, type_ == PublicDialogType::IsLocationBased, check_limit, type_ == PublicDialogType::ForPersonalDialog)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getAdminedPublicChannels>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto chats_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetCreatedPublicChannelsQuery: " << to_string(chats_ptr);
-    switch (chats_ptr->get_id()) {
-      case telegram_api::messages_chats::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chats>(chats_ptr);
-        td_->chat_manager_->on_get_created_public_channels(type_, std::move(chats->chats_));
-        break;
-      }
-      case telegram_api::messages_chatsSlice::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chatsSlice>(chats_ptr);
-        LOG(ERROR) << "Receive chatsSlice in result of GetCreatedPublicChannelsQuery";
-        td_->chat_manager_->on_get_created_public_channels(type_, std::move(chats->chats_));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGroupsForDiscussionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetGroupsForDiscussionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::channels_getGroupsForDiscussion()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getGroupsForDiscussion>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto chats_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetGroupsForDiscussionQuery: " << to_string(chats_ptr);
-    switch (chats_ptr->get_id()) {
-      case telegram_api::messages_chats::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chats>(chats_ptr);
-        td_->chat_manager_->on_get_dialogs_for_discussion(std::move(chats->chats_));
-        break;
-      }
-      case telegram_api::messages_chatsSlice::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chatsSlice>(chats_ptr);
-        LOG(ERROR) << "Receive chatsSlice in result of GetGroupsForDiscussionQuery";
-        td_->chat_manager_->on_get_dialogs_for_discussion(std::move(chats->chats_));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetInactiveChannelsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetInactiveChannelsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::channels_getInactiveChannels()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getInactiveChannels>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetInactiveChannelsQuery: " << to_string(result);
-    // don't need to use result->dates_, because chat.last_message.date is more reliable
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetInactiveChannelsQuery");
-    td_->chat_manager_->on_get_inactive_channels(std::move(result->chats_), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChatsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetChatsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<int64> &&chat_ids) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getChats(std::move(chat_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getChats>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto chats_ptr = result_ptr.move_as_ok();
-    switch (chats_ptr->get_id()) {
-      case telegram_api::messages_chats::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chats>(chats_ptr);
-        td_->chat_manager_->on_get_chats(std::move(chats->chats_), "GetChatsQuery");
-        break;
-      }
-      case telegram_api::messages_chatsSlice::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chatsSlice>(chats_ptr);
-        LOG(ERROR) << "Receive chatsSlice in result of GetChatsQuery";
-        td_->chat_manager_->on_get_chats(std::move(chats->chats_), "GetChatsQuery slice");
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetFullChatQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChatId chat_id_;
-
- public:
-  explicit GetFullChatQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChatId chat_id) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getFullChat(chat_id.get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getFullChat>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetFullChatQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetFullChatQuery");
-    td_->chat_manager_->on_get_chat_full(std::move(ptr->full_chat_), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_chat_full_failed(chat_id_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChannelsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetChannelsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputChannel> &&input_channel) {
-    CHECK(input_channel != nullptr);
-    if (input_channel->get_id() == telegram_api::inputChannel::ID) {
-      channel_id_ = ChannelId(static_cast<const telegram_api::inputChannel *>(input_channel.get())->channel_id_);
-    } else if (input_channel->get_id() == telegram_api::inputChannelFromMessage::ID) {
-      channel_id_ =
-          ChannelId(static_cast<const telegram_api::inputChannelFromMessage *>(input_channel.get())->channel_id_);
-    }
-
-    vector<tl_object_ptr<telegram_api::InputChannel>> input_channels;
-    input_channels.push_back(std::move(input_channel));
-    send_query(G()->net_query_creator().create(telegram_api::channels_getChannels(std::move(input_channels))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getChannels>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    //    LOG(INFO) << "Receive result for GetChannelsQuery: " << to_string(result_ptr.ok());
-    auto chats_ptr = result_ptr.move_as_ok();
-    switch (chats_ptr->get_id()) {
-      case telegram_api::messages_chats::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chats>(chats_ptr);
-        td_->chat_manager_->on_get_chats(std::move(chats->chats_), "GetChannelsQuery");
-        break;
-      }
-      case telegram_api::messages_chatsSlice::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chatsSlice>(chats_ptr);
-        LOG(ERROR) << "Receive chatsSlice in result of GetChannelsQuery";
-        td_->chat_manager_->on_get_chats(std::move(chats->chats_), "GetChannelsQuery slice");
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetChannelsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetFullChannelQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetFullChannelQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, tl_object_ptr<telegram_api::InputChannel> &&input_channel) {
-    channel_id_ = channel_id;
-    send_query(G()->net_query_creator().create(telegram_api::channels_getFullChannel(std::move(input_channel))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getFullChannel>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetFullChannelQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetFullChannelQuery");
-    td_->chat_manager_->on_get_chat_full(std::move(ptr->full_chat_), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetFullChannelQuery");
-    td_->chat_manager_->on_get_channel_full_failed(channel_id_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-ChatManager::ChatManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  channel_emoji_status_timeout_.set_callback(on_channel_emoji_status_timeout_callback);
-  channel_emoji_status_timeout_.set_callback_data(static_cast<void *>(this));
-
-  channel_unban_timeout_.set_callback(on_channel_unban_timeout_callback);
-  channel_unban_timeout_.set_callback_data(static_cast<void *>(this));
-
-  slow_mode_delay_timeout_.set_callback(on_slow_mode_delay_timeout_callback);
-  slow_mode_delay_timeout_.set_callback_data(static_cast<void *>(this));
-
-  get_chat_queries_.set_merge_function([this](vector<int64> query_ids, Promise<Unit> &&promise) {
-    TRY_STATUS_PROMISE(promise, G()->close_status());
-    td_->create_handler<GetChatsQuery>(std::move(promise))->send(std::move(query_ids));
-  });
-  get_channel_queries_.set_merge_function([this](vector<int64> query_ids, Promise<Unit> &&promise) {
-    TRY_STATUS_PROMISE(promise, G()->close_status());
-    CHECK(query_ids.size() == 1);
-    auto input_channel = get_input_channel(ChannelId(query_ids[0]));
-    if (input_channel == nullptr) {
-      return promise.set_error(Status::Error(400, "Channel not found"));
-    }
-    td_->create_handler<GetChannelsQuery>(std::move(promise))->send(std::move(input_channel));
-  });
-}
-
-ChatManager::~ChatManager() {
-  Scheduler::instance()->destroy_on_scheduler(
-      G()->get_gc_scheduler_id(), chats_, chats_full_, unknown_chats_, chat_full_file_source_ids_, min_channels_,
-      channels_, channels_full_, unknown_channels_, invalidated_channels_full_, channel_full_file_source_ids_);
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), loaded_from_database_chats_,
-                                              unavailable_chat_fulls_, loaded_from_database_channels_,
-                                              unavailable_channel_fulls_, linked_channel_ids_, restricted_channel_ids_);
-}
-
-void ChatManager::tear_down() {
-  parent_.reset();
-
-  LOG(DEBUG) << "Have " << chats_.calc_size() << " basic groups and " << channels_.calc_size()
-             << " supergroups to free";
-  LOG(DEBUG) << "Have " << chats_full_.calc_size() << " full basic groups and " << channels_full_.calc_size()
-             << " full supergroups to free";
-}
-
-void ChatManager::on_channel_emoji_status_timeout_callback(void *chat_manager_ptr, int64 channel_id_long) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto chat_manager = static_cast<ChatManager *>(chat_manager_ptr);
-  send_closure_later(chat_manager->actor_id(chat_manager), &ChatManager::on_channel_emoji_status_timeout,
-                     ChannelId(channel_id_long));
-}
-
-void ChatManager::on_channel_emoji_status_timeout(ChannelId channel_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  CHECK(c->is_update_supergroup_sent);
-
-  update_channel(c, channel_id);
-}
-
-void ChatManager::on_channel_unban_timeout_callback(void *chat_manager_ptr, int64 channel_id_long) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto chat_manager = static_cast<ChatManager *>(chat_manager_ptr);
-  send_closure_later(chat_manager->actor_id(chat_manager), &ChatManager::on_channel_unban_timeout,
-                     ChannelId(channel_id_long));
-}
-
-void ChatManager::on_channel_unban_timeout(ChannelId channel_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto c = get_channel(channel_id);
-  CHECK(c != nullptr);
-
-  auto old_status = c->status;
-  c->status.update_restrictions();
-  if (c->status == old_status) {
-    LOG_IF(ERROR, c->status.is_restricted() || c->status.is_banned())
-        << "Status of " << channel_id << " wasn't updated: " << c->status;
-  } else {
-    c->is_changed = true;
-  }
-
-  LOG(INFO) << "Update " << channel_id << " status";
-  c->is_status_changed = true;
-  invalidate_channel_full(channel_id, !c->is_slow_mode_enabled, "on_channel_unban_timeout");
-  update_channel(c, channel_id);  // always call, because in case of failure we need to reactivate timeout
-}
-
-void ChatManager::on_slow_mode_delay_timeout_callback(void *chat_manager_ptr, int64 channel_id_long) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto chat_manager = static_cast<ChatManager *>(chat_manager_ptr);
-  send_closure_later(chat_manager->actor_id(chat_manager), &ChatManager::on_slow_mode_delay_timeout,
-                     ChannelId(channel_id_long));
-}
-
-void ChatManager::on_slow_mode_delay_timeout(ChannelId channel_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  on_update_channel_slow_mode_next_send_date(channel_id, 0);
-}
-
-template <class StorerT>
-void ChatManager::Chat::store(StorerT &storer) const {
-  using td::store;
-  bool has_photo = photo.small_file_id.is_valid();
-  bool use_new_rights = true;
-  bool has_default_permissions_version = default_permissions_version != -1;
-  bool has_pinned_message_version = pinned_message_version != -1;
-  bool has_cache_version = cache_version != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(is_active);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(use_new_rights);
-  STORE_FLAG(has_default_permissions_version);
-  STORE_FLAG(has_pinned_message_version);
-  STORE_FLAG(has_cache_version);
-  STORE_FLAG(noforwards);
-  END_STORE_FLAGS();
-
-  store(title, storer);
-  if (has_photo) {
-    store(photo, storer);
-  }
-  store(participant_count, storer);
-  store(date, storer);
-  store(migrated_to_channel_id, storer);
-  store(version, storer);
-  store(status, storer);
-  store(default_permissions, storer);
-  if (has_default_permissions_version) {
-    store(default_permissions_version, storer);
-  }
-  if (has_pinned_message_version) {
-    store(pinned_message_version, storer);
-  }
-  if (has_cache_version) {
-    store(cache_version, storer);
-  }
-}
-
-template <class ParserT>
-void ChatManager::Chat::parse(ParserT &parser) {
-  using td::parse;
-  bool has_photo;
-  bool left;
-  bool kicked;
-  bool is_creator;
-  bool is_administrator;
-  bool everyone_is_administrator;
-  bool can_edit;
-  bool use_new_rights;
-  bool has_default_permissions_version;
-  bool has_pinned_message_version;
-  bool has_cache_version;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(left);
-  PARSE_FLAG(kicked);
-  PARSE_FLAG(is_creator);
-  PARSE_FLAG(is_administrator);
-  PARSE_FLAG(everyone_is_administrator);
-  PARSE_FLAG(can_edit);
-  PARSE_FLAG(is_active);
-  PARSE_FLAG(has_photo);
-  PARSE_FLAG(use_new_rights);
-  PARSE_FLAG(has_default_permissions_version);
-  PARSE_FLAG(has_pinned_message_version);
-  PARSE_FLAG(has_cache_version);
-  PARSE_FLAG(noforwards);
-  END_PARSE_FLAGS();
-
-  parse(title, parser);
-  if (has_photo) {
-    parse(photo, parser);
-  }
-  parse(participant_count, parser);
-  parse(date, parser);
-  parse(migrated_to_channel_id, parser);
-  parse(version, parser);
-  if (use_new_rights) {
-    parse(status, parser);
-    parse(default_permissions, parser);
-  } else {
-    if (can_edit != (is_creator || is_administrator || everyone_is_administrator)) {
-      LOG(ERROR) << "Have wrong can_edit flag";
-    }
-
-    if (kicked || !is_active) {
-      status = DialogParticipantStatus::Banned(0);
-    } else if (left) {
-      status = DialogParticipantStatus::Left();
-    } else if (is_creator) {
-      status = DialogParticipantStatus::Creator(true, false, string());
-    } else if (is_administrator && !everyone_is_administrator) {
-      status = DialogParticipantStatus::GroupAdministrator(false);
-    } else {
-      status = DialogParticipantStatus::Member(0);
-    }
-    default_permissions = RestrictedRights(true, true, true, true, true, true, true, true, true, true, true, true, true,
-                                           everyone_is_administrator, everyone_is_administrator,
-                                           everyone_is_administrator, false, ChannelType::Unknown);
-  }
-  if (has_default_permissions_version) {
-    parse(default_permissions_version, parser);
-  }
-  if (has_pinned_message_version) {
-    parse(pinned_message_version, parser);
-  }
-  if (has_cache_version) {
-    parse(cache_version, parser);
-  }
-
-  if (!check_utf8(title)) {
-    LOG(ERROR) << "Have invalid title \"" << title << '"';
-    title.clear();
-    cache_version = 0;
-  }
-
-  if (status.is_administrator() && !status.is_creator()) {
-    status = DialogParticipantStatus::GroupAdministrator(false);
-  }
-}
-
-template <class StorerT>
-void ChatManager::ChatFull::store(StorerT &storer) const {
-  using td::store;
-  bool has_description = !description.empty();
-  bool has_legacy_invite_link = false;
-  bool has_photo = !photo.is_empty();
-  bool has_invite_link = invite_link.is_valid();
-  bool has_bot_commands = !bot_commands.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_description);
-  STORE_FLAG(has_legacy_invite_link);
-  STORE_FLAG(can_set_username);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(has_invite_link);
-  STORE_FLAG(has_bot_commands);
-  END_STORE_FLAGS();
-  store(version, storer);
-  store(creator_user_id, storer);
-  store(participants, storer);
-  if (has_description) {
-    store(description, storer);
-  }
-  if (has_photo) {
-    store(photo, storer);
-  }
-  if (has_invite_link) {
-    store(invite_link, storer);
-  }
-  if (has_bot_commands) {
-    store(bot_commands, storer);
-  }
-}
-
-template <class ParserT>
-void ChatManager::ChatFull::parse(ParserT &parser) {
-  using td::parse;
-  bool has_description;
-  bool legacy_has_invite_link;
-  bool has_photo;
-  bool has_invite_link;
-  bool has_bot_commands;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_description);
-  PARSE_FLAG(legacy_has_invite_link);
-  PARSE_FLAG(can_set_username);
-  PARSE_FLAG(has_photo);
-  PARSE_FLAG(has_invite_link);
-  PARSE_FLAG(has_bot_commands);
-  END_PARSE_FLAGS();
-  parse(version, parser);
-  parse(creator_user_id, parser);
-  parse(participants, parser);
-  if (has_description) {
-    parse(description, parser);
-  }
-  if (legacy_has_invite_link) {
-    string legacy_invite_link;
-    parse(legacy_invite_link, parser);
-  }
-  if (has_photo) {
-    parse(photo, parser);
-  }
-  if (has_invite_link) {
-    parse(invite_link, parser);
-  }
-  if (has_bot_commands) {
-    parse(bot_commands, parser);
-  }
-}
-
-template <class StorerT>
-void ChatManager::Channel::store(StorerT &storer) const {
-  using td::store;
-  bool has_photo = photo.small_file_id.is_valid();
-  bool legacy_has_username = false;
-  bool use_new_rights = true;
-  bool has_participant_count = participant_count != 0;
-  bool have_default_permissions = true;
-  bool has_cache_version = cache_version != 0;
-  bool has_restriction_reasons = !restriction_reasons.empty();
-  bool legacy_has_active_group_call = false;
-  bool has_usernames = !usernames.is_empty();
-  bool has_flags2 = true;
-  bool has_max_active_story_id = max_active_story_id.is_valid();
-  bool has_max_read_story_id = max_read_story_id.is_valid();
-  bool has_max_active_story_id_next_reload_time = max_active_story_id_next_reload_time > Time::now();
-  bool has_accent_color_id = accent_color_id.is_valid();
-  bool has_background_custom_emoji_id = background_custom_emoji_id.is_valid();
-  bool has_profile_accent_color_id = profile_accent_color_id.is_valid();
-  bool has_profile_background_custom_emoji_id = profile_background_custom_emoji_id.is_valid();
-  bool has_boost_level = boost_level != 0;
-  bool has_emoji_status = emoji_status != nullptr;
-  bool has_bot_verification_icon = bot_verification_icon.is_valid();
-  bool has_paid_message_star_count = paid_message_star_count != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(sign_messages);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(is_megagroup);
-  STORE_FLAG(is_verified);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(legacy_has_username);
-  STORE_FLAG(false);
-  STORE_FLAG(use_new_rights);
-  STORE_FLAG(has_participant_count);
-  STORE_FLAG(have_default_permissions);
-  STORE_FLAG(is_scam);
-  STORE_FLAG(has_cache_version);
-  STORE_FLAG(has_linked_channel);
-  STORE_FLAG(has_location);
-  STORE_FLAG(is_slow_mode_enabled);
-  STORE_FLAG(has_restriction_reasons);
-  STORE_FLAG(legacy_has_active_group_call);
-  STORE_FLAG(is_fake);
-  STORE_FLAG(is_gigagroup);
-  STORE_FLAG(noforwards);
-  STORE_FLAG(can_be_deleted);
-  STORE_FLAG(join_to_send);
-  STORE_FLAG(join_request);
-  STORE_FLAG(has_usernames);
-  STORE_FLAG(has_flags2);
-  END_STORE_FLAGS();
-  if (has_flags2) {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_forum);
-    STORE_FLAG(has_max_active_story_id);
-    STORE_FLAG(has_max_read_story_id);
-    STORE_FLAG(has_max_active_story_id_next_reload_time);
-    STORE_FLAG(stories_hidden);
-    STORE_FLAG(has_accent_color_id);
-    STORE_FLAG(has_background_custom_emoji_id);
-    STORE_FLAG(has_profile_accent_color_id);
-    STORE_FLAG(has_profile_background_custom_emoji_id);
-    STORE_FLAG(has_boost_level);
-    STORE_FLAG(has_emoji_status);
-    STORE_FLAG(show_message_sender);
-    STORE_FLAG(has_bot_verification_icon);
-    STORE_FLAG(has_paid_message_star_count);
-    END_STORE_FLAGS();
-  }
-
-  store(status, storer);
-  store(access_hash, storer);
-  store(title, storer);
-  if (has_photo) {
-    store(photo, storer);
-  }
-  store(date, storer);
-  if (has_restriction_reasons) {
-    store(restriction_reasons, storer);
-  }
-  if (has_participant_count) {
-    store(participant_count, storer);
-  }
-  if (is_megagroup) {
-    store(default_permissions, storer);
-  }
-  if (has_cache_version) {
-    store(cache_version, storer);
-  }
-  if (has_usernames) {
-    store(usernames, storer);
-  }
-  if (has_max_active_story_id) {
-    store(max_active_story_id, storer);
-  }
-  if (has_max_read_story_id) {
-    store(max_read_story_id, storer);
-  }
-  if (has_max_active_story_id_next_reload_time) {
-    store_time(max_active_story_id_next_reload_time, storer);
-  }
-  if (has_accent_color_id) {
-    store(accent_color_id, storer);
-  }
-  if (has_background_custom_emoji_id) {
-    store(background_custom_emoji_id, storer);
-  }
-  if (has_profile_accent_color_id) {
-    store(profile_accent_color_id, storer);
-  }
-  if (has_profile_background_custom_emoji_id) {
-    store(profile_background_custom_emoji_id, storer);
-  }
-  if (has_boost_level) {
-    store(boost_level, storer);
-  }
-  if (has_emoji_status) {
-    store(emoji_status, storer);
-  }
-  if (has_bot_verification_icon) {
-    store(bot_verification_icon, storer);
-  }
-  if (has_paid_message_star_count) {
-    store(paid_message_star_count, storer);
-  }
-}
-
-template <class ParserT>
-void ChatManager::Channel::parse(ParserT &parser) {
-  using td::parse;
-  bool has_photo;
-  bool legacy_has_username;
-  bool legacy_is_restricted;
-  bool left;
-  bool kicked;
-  bool is_creator;
-  bool can_edit;
-  bool can_moderate;
-  bool anyone_can_invite;
-  bool use_new_rights;
-  bool has_participant_count;
-  bool have_default_permissions;
-  bool has_cache_version;
-  bool has_restriction_reasons;
-  bool legacy_has_active_group_call;
-  bool has_usernames;
-  bool has_flags2;
-  bool has_max_active_story_id = false;
-  bool has_max_read_story_id = false;
-  bool has_max_active_story_id_next_reload_time = false;
-  bool has_accent_color_id = false;
-  bool has_background_custom_emoji_id = false;
-  bool has_profile_accent_color_id = false;
-  bool has_profile_background_custom_emoji_id = false;
-  bool has_boost_level = false;
-  bool has_emoji_status = false;
-  bool has_bot_verification_icon = false;
-  bool has_paid_message_star_count = false;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(left);
-  PARSE_FLAG(kicked);
-  PARSE_FLAG(anyone_can_invite);
-  PARSE_FLAG(sign_messages);
-  PARSE_FLAG(is_creator);
-  PARSE_FLAG(can_edit);
-  PARSE_FLAG(can_moderate);
-  PARSE_FLAG(is_megagroup);
-  PARSE_FLAG(is_verified);
-  PARSE_FLAG(has_photo);
-  PARSE_FLAG(legacy_has_username);
-  PARSE_FLAG(legacy_is_restricted);
-  PARSE_FLAG(use_new_rights);
-  PARSE_FLAG(has_participant_count);
-  PARSE_FLAG(have_default_permissions);
-  PARSE_FLAG(is_scam);
-  PARSE_FLAG(has_cache_version);
-  PARSE_FLAG(has_linked_channel);
-  PARSE_FLAG(has_location);
-  PARSE_FLAG(is_slow_mode_enabled);
-  PARSE_FLAG(has_restriction_reasons);
-  PARSE_FLAG(legacy_has_active_group_call);
-  PARSE_FLAG(is_fake);
-  PARSE_FLAG(is_gigagroup);
-  PARSE_FLAG(noforwards);
-  PARSE_FLAG(can_be_deleted);
-  PARSE_FLAG(join_to_send);
-  PARSE_FLAG(join_request);
-  PARSE_FLAG(has_usernames);
-  PARSE_FLAG(has_flags2);
-  END_PARSE_FLAGS();
-  if (has_flags2) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_forum);
-    PARSE_FLAG(has_max_active_story_id);
-    PARSE_FLAG(has_max_read_story_id);
-    PARSE_FLAG(has_max_active_story_id_next_reload_time);
-    PARSE_FLAG(stories_hidden);
-    PARSE_FLAG(has_accent_color_id);
-    PARSE_FLAG(has_background_custom_emoji_id);
-    PARSE_FLAG(has_profile_accent_color_id);
-    PARSE_FLAG(has_profile_background_custom_emoji_id);
-    PARSE_FLAG(has_boost_level);
-    PARSE_FLAG(has_emoji_status);
-    PARSE_FLAG(show_message_sender);
-    PARSE_FLAG(has_bot_verification_icon);
-    PARSE_FLAG(has_paid_message_star_count);
-    END_PARSE_FLAGS();
-  }
-
-  if (use_new_rights) {
-    parse(status, parser);
-  } else {
-    if (kicked) {
-      status = DialogParticipantStatus::Banned(0);
-    } else if (left) {
-      status = DialogParticipantStatus::Left();
-    } else if (is_creator) {
-      status = DialogParticipantStatus::Creator(true, false, string());
-    } else if (can_edit || can_moderate) {
-      status = DialogParticipantStatus::ChannelAdministrator(false, is_megagroup);
-    } else {
-      status = DialogParticipantStatus::Member(0);
-    }
-  }
-  parse(access_hash, parser);
-  parse(title, parser);
-  if (has_photo) {
-    parse(photo, parser);
-  }
-  if (legacy_has_username) {
-    if (has_usernames) {
-      parser.set_error("Have invalid channel flags");
-      return;
-    }
-    string username;
-    parse(username, parser);
-    usernames = Usernames(std::move(username), vector<telegram_api::object_ptr<telegram_api::username>>());
-  }
-  parse(date, parser);
-  if (legacy_is_restricted) {
-    string restriction_reason;
-    parse(restriction_reason, parser);
-    restriction_reasons = get_restriction_reasons(restriction_reason);
-  } else if (has_restriction_reasons) {
-    parse(restriction_reasons, parser);
-  }
-  if (has_participant_count) {
-    parse(participant_count, parser);
-  }
-  if (is_megagroup) {
-    if (have_default_permissions) {
-      parse(default_permissions, parser);
-    } else {
-      default_permissions = RestrictedRights(true, true, true, true, true, true, true, true, true, true, true, true,
-                                             true, false, anyone_can_invite, false, false, ChannelType::Megagroup);
-    }
-  }
-  if (has_cache_version) {
-    parse(cache_version, parser);
-  }
-  if (has_usernames) {
-    CHECK(!legacy_has_username);
-    parse(usernames, parser);
-  }
-  if (has_max_active_story_id) {
-    parse(max_active_story_id, parser);
-  }
-  if (has_max_read_story_id) {
-    parse(max_read_story_id, parser);
-  }
-  if (has_max_active_story_id_next_reload_time) {
-    parse_time(max_active_story_id_next_reload_time, parser);
-  }
-  if (has_accent_color_id) {
-    parse(accent_color_id, parser);
-  }
-  if (has_background_custom_emoji_id) {
-    parse(background_custom_emoji_id, parser);
-  }
-  if (has_profile_accent_color_id) {
-    parse(profile_accent_color_id, parser);
-  }
-  if (has_profile_background_custom_emoji_id) {
-    parse(profile_background_custom_emoji_id, parser);
-  }
-  if (has_boost_level) {
-    parse(boost_level, parser);
-  }
-  if (has_emoji_status) {
-    parse(emoji_status, parser);
-  }
-  if (has_bot_verification_icon) {
-    parse(bot_verification_icon, parser);
-  }
-  if (has_paid_message_star_count) {
-    parse(paid_message_star_count, parser);
-  }
-
-  if (!check_utf8(title)) {
-    LOG(ERROR) << "Have invalid title \"" << title << '"';
-    title.clear();
-    cache_version = 0;
-  }
-  if (legacy_has_active_group_call) {
-    cache_version = 0;
-  }
-  if (is_megagroup) {
-    show_message_sender = true;
-  } else {
-    if (status.is_restricted()) {
-      if (status.is_member()) {
-        status = DialogParticipantStatus::Member(0);
-      } else {
-        status = DialogParticipantStatus::Left();
-      }
-    }
-  }
-}
-
-template <class StorerT>
-void ChatManager::ChannelFull::store(StorerT &storer) const {
-  using td::store;
-  bool has_description = !description.empty();
-  bool has_administrator_count = administrator_count != 0;
-  bool has_restricted_count = restricted_count != 0;
-  bool has_banned_count = banned_count != 0;
-  bool legacy_has_invite_link = false;
-  bool has_sticker_set = sticker_set_id.is_valid();
-  bool has_linked_channel_id = linked_channel_id.is_valid();
-  bool has_migrated_from_max_message_id = migrated_from_max_message_id.is_valid();
-  bool has_migrated_from_chat_id = migrated_from_chat_id.is_valid();
-  bool has_location = !location.empty();
-  bool has_bot_user_ids = !bot_user_ids.empty();
-  bool is_slow_mode_enabled = slow_mode_delay != 0;
-  bool is_slow_mode_delay_active = slow_mode_next_send_date != 0;
-  bool has_stats_dc_id = stats_dc_id.is_exact();
-  bool has_photo = !photo.is_empty();
-  bool legacy_has_active_group_call_id = false;
-  bool has_invite_link = invite_link.is_valid();
-  bool has_bot_commands = !bot_commands.empty();
-  bool has_flags2 = true;
-  bool has_emoji_sticker_set = emoji_sticker_set_id.is_valid();
-  bool has_boost_count = boost_count != 0;
-  bool has_unrestrict_boost_count = unrestrict_boost_count != 0;
-  bool has_can_have_sponsored_messages = true;
-  bool has_bot_verification = bot_verification != nullptr;
-  bool has_gift_count = gift_count != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_description);
-  STORE_FLAG(has_administrator_count);
-  STORE_FLAG(has_restricted_count);
-  STORE_FLAG(has_banned_count);
-  STORE_FLAG(legacy_has_invite_link);
-  STORE_FLAG(has_sticker_set);
-  STORE_FLAG(has_linked_channel_id);
-  STORE_FLAG(has_migrated_from_max_message_id);
-  STORE_FLAG(has_migrated_from_chat_id);
-  STORE_FLAG(can_get_participants);
-  STORE_FLAG(can_set_username);
-  STORE_FLAG(can_set_sticker_set);
-  STORE_FLAG(false);  // legacy_can_view_statistics
-  STORE_FLAG(is_all_history_available);
-  STORE_FLAG(can_set_location);
-  STORE_FLAG(has_location);
-  STORE_FLAG(has_bot_user_ids);
-  STORE_FLAG(is_slow_mode_enabled);
-  STORE_FLAG(is_slow_mode_delay_active);
-  STORE_FLAG(has_stats_dc_id);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(is_can_view_statistics_inited);
-  STORE_FLAG(can_view_statistics);
-  STORE_FLAG(legacy_has_active_group_call_id);
-  STORE_FLAG(has_invite_link);
-  STORE_FLAG(has_bot_commands);
-  STORE_FLAG(can_be_deleted);
-  STORE_FLAG(has_aggressive_anti_spam_enabled);
-  STORE_FLAG(has_hidden_participants);
-  STORE_FLAG(has_flags2);
-  END_STORE_FLAGS();
-  if (has_flags2) {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_pinned_stories);
-    STORE_FLAG(has_emoji_sticker_set);
-    STORE_FLAG(has_boost_count);
-    STORE_FLAG(has_unrestrict_boost_count);
-    STORE_FLAG(can_have_sponsored_messages);
-    STORE_FLAG(can_view_revenue);
-    STORE_FLAG(has_can_have_sponsored_messages);
-    STORE_FLAG(has_paid_media_allowed);
-    STORE_FLAG(can_view_star_revenue);
-    STORE_FLAG(has_bot_verification);
-    STORE_FLAG(has_gift_count);
-    STORE_FLAG(has_stargifts_available);
-    STORE_FLAG(has_paid_messages_available);
-    END_STORE_FLAGS();
-  }
-  if (has_description) {
-    store(description, storer);
-  }
-  store(participant_count, storer);
-  if (has_administrator_count) {
-    store(administrator_count, storer);
-  }
-  if (has_restricted_count) {
-    store(restricted_count, storer);
-  }
-  if (has_banned_count) {
-    store(banned_count, storer);
-  }
-  if (has_sticker_set) {
-    store(sticker_set_id, storer);
-  }
-  if (has_linked_channel_id) {
-    store(linked_channel_id, storer);
-  }
-  if (has_location) {
-    store(location, storer);
-  }
-  if (has_bot_user_ids) {
-    store(bot_user_ids, storer);
-  }
-  if (has_migrated_from_max_message_id) {
-    store(migrated_from_max_message_id, storer);
-  }
-  if (has_migrated_from_chat_id) {
-    store(migrated_from_chat_id, storer);
-  }
-  if (is_slow_mode_enabled) {
-    store(slow_mode_delay, storer);
-  }
-  if (is_slow_mode_delay_active) {
-    store(slow_mode_next_send_date, storer);
-  }
-  store_time(expires_at, storer);
-  if (has_stats_dc_id) {
-    store(stats_dc_id.get_raw_id(), storer);
-  }
-  if (has_photo) {
-    store(photo, storer);
-  }
-  if (has_invite_link) {
-    store(invite_link, storer);
-  }
-  if (has_bot_commands) {
-    store(bot_commands, storer);
-  }
-  if (has_emoji_sticker_set) {
-    store(emoji_sticker_set_id, storer);
-  }
-  if (has_boost_count) {
-    store(boost_count, storer);
-  }
-  if (has_unrestrict_boost_count) {
-    store(unrestrict_boost_count, storer);
-  }
-  if (has_bot_verification) {
-    store(bot_verification, storer);
-  }
-  if (has_gift_count) {
-    store(gift_count, storer);
-  }
-}
-
-template <class ParserT>
-void ChatManager::ChannelFull::parse(ParserT &parser) {
-  using td::parse;
-  bool has_description;
-  bool has_administrator_count;
-  bool has_restricted_count;
-  bool has_banned_count;
-  bool legacy_has_invite_link;
-  bool has_sticker_set;
-  bool has_linked_channel_id;
-  bool has_migrated_from_max_message_id;
-  bool has_migrated_from_chat_id;
-  bool legacy_can_view_statistics;
-  bool has_location;
-  bool has_bot_user_ids;
-  bool is_slow_mode_enabled;
-  bool is_slow_mode_delay_active;
-  bool has_stats_dc_id;
-  bool has_photo;
-  bool legacy_has_active_group_call_id;
-  bool has_invite_link;
-  bool has_bot_commands;
-  bool has_flags2;
-  bool has_emoji_sticker_set = false;
-  bool has_boost_count = false;
-  bool has_unrestrict_boost_count = false;
-  bool has_can_have_sponsored_messages = false;
-  bool has_bot_verification = false;
-  bool has_gift_count = false;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_description);
-  PARSE_FLAG(has_administrator_count);
-  PARSE_FLAG(has_restricted_count);
-  PARSE_FLAG(has_banned_count);
-  PARSE_FLAG(legacy_has_invite_link);
-  PARSE_FLAG(has_sticker_set);
-  PARSE_FLAG(has_linked_channel_id);
-  PARSE_FLAG(has_migrated_from_max_message_id);
-  PARSE_FLAG(has_migrated_from_chat_id);
-  PARSE_FLAG(can_get_participants);
-  PARSE_FLAG(can_set_username);
-  PARSE_FLAG(can_set_sticker_set);
-  PARSE_FLAG(legacy_can_view_statistics);
-  PARSE_FLAG(is_all_history_available);
-  PARSE_FLAG(can_set_location);
-  PARSE_FLAG(has_location);
-  PARSE_FLAG(has_bot_user_ids);
-  PARSE_FLAG(is_slow_mode_enabled);
-  PARSE_FLAG(is_slow_mode_delay_active);
-  PARSE_FLAG(has_stats_dc_id);
-  PARSE_FLAG(has_photo);
-  PARSE_FLAG(is_can_view_statistics_inited);
-  PARSE_FLAG(can_view_statistics);
-  PARSE_FLAG(legacy_has_active_group_call_id);
-  PARSE_FLAG(has_invite_link);
-  PARSE_FLAG(has_bot_commands);
-  PARSE_FLAG(can_be_deleted);
-  PARSE_FLAG(has_aggressive_anti_spam_enabled);
-  PARSE_FLAG(has_hidden_participants);
-  PARSE_FLAG(has_flags2);
-  END_PARSE_FLAGS();
-  if (has_flags2) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_pinned_stories);
-    PARSE_FLAG(has_emoji_sticker_set);
-    PARSE_FLAG(has_boost_count);
-    PARSE_FLAG(has_unrestrict_boost_count);
-    PARSE_FLAG(can_have_sponsored_messages);
-    PARSE_FLAG(can_view_revenue);
-    PARSE_FLAG(has_can_have_sponsored_messages);
-    PARSE_FLAG(has_paid_media_allowed);
-    PARSE_FLAG(can_view_star_revenue);
-    PARSE_FLAG(has_bot_verification);
-    PARSE_FLAG(has_gift_count);
-    PARSE_FLAG(has_stargifts_available);
-    PARSE_FLAG(has_paid_messages_available);
-    END_PARSE_FLAGS();
-  }
-  if (has_description) {
-    parse(description, parser);
-  }
-  parse(participant_count, parser);
-  if (has_administrator_count) {
-    parse(administrator_count, parser);
-  }
-  if (has_restricted_count) {
-    parse(restricted_count, parser);
-  }
-  if (has_banned_count) {
-    parse(banned_count, parser);
-  }
-  if (legacy_has_invite_link) {
-    string legacy_invite_link;
-    parse(legacy_invite_link, parser);
-  }
-  if (has_sticker_set) {
-    parse(sticker_set_id, parser);
-  }
-  if (has_linked_channel_id) {
-    parse(linked_channel_id, parser);
-  }
-  if (has_location) {
-    parse(location, parser);
-  }
-  if (has_bot_user_ids) {
-    parse(bot_user_ids, parser);
-  }
-  if (has_migrated_from_max_message_id) {
-    parse(migrated_from_max_message_id, parser);
-  }
-  if (has_migrated_from_chat_id) {
-    parse(migrated_from_chat_id, parser);
-  }
-  if (is_slow_mode_enabled) {
-    parse(slow_mode_delay, parser);
-  }
-  if (is_slow_mode_delay_active) {
-    parse(slow_mode_next_send_date, parser);
-  }
-  parse_time(expires_at, parser);
-  if (has_stats_dc_id) {
-    stats_dc_id = DcId::create(parser.fetch_int());
-  }
-  if (has_photo) {
-    parse(photo, parser);
-  }
-  if (legacy_has_active_group_call_id) {
-    InputGroupCallId input_group_call_id;
-    parse(input_group_call_id, parser);
-  }
-  if (has_invite_link) {
-    parse(invite_link, parser);
-  }
-  if (has_bot_commands) {
-    parse(bot_commands, parser);
-  }
-  if (has_emoji_sticker_set) {
-    parse(emoji_sticker_set_id, parser);
-  }
-  if (has_boost_count) {
-    parse(boost_count, parser);
-  }
-  if (has_unrestrict_boost_count) {
-    parse(unrestrict_boost_count, parser);
-  }
-  if (has_bot_verification) {
-    parse(bot_verification, parser);
-  }
-  if (has_gift_count) {
-    parse(gift_count, parser);
-  }
-
-  if (legacy_can_view_statistics) {
-    LOG(DEBUG) << "Ignore legacy can view statistics flag";
-  }
-  if (!is_can_view_statistics_inited) {
-    can_view_statistics = stats_dc_id.is_exact();
-  }
-  if (!has_can_have_sponsored_messages) {
-    can_have_sponsored_messages = true;
-  }
-}
-
-tl_object_ptr<telegram_api::InputChannel> ChatManager::get_input_channel(ChannelId channel_id) const {
-  const Channel *c = get_channel(channel_id);
-  if (c == nullptr) {
-    if (td_->auth_manager_->is_bot() && channel_id.is_valid()) {
-      return make_tl_object<telegram_api::inputChannel>(channel_id.get(), 0);
-    }
-    auto it = channel_messages_.find(channel_id);
-    if (it != channel_messages_.end()) {
-      CHECK(!it->second.empty());
-      auto message_full_id = *it->second.begin();
-      return make_tl_object<telegram_api::inputChannelFromMessage>(
-          get_simple_input_peer(message_full_id.get_dialog_id()),
-          message_full_id.get_message_id().get_server_message_id().get(), channel_id.get());
-    }
-    return nullptr;
-  }
-
-  return make_tl_object<telegram_api::inputChannel>(channel_id.get(), c->access_hash);
-}
-
-bool ChatManager::have_input_peer_chat(ChatId chat_id, AccessRights access_rights) const {
-  return have_input_peer_chat(get_chat(chat_id), access_rights);
-}
-
-bool ChatManager::have_input_peer_chat(const Chat *c, AccessRights access_rights) {
-  if (c == nullptr) {
-    LOG(DEBUG) << "Have no basic group";
-    return false;
-  }
-  if (access_rights == AccessRights::Know) {
-    return true;
-  }
-  if (access_rights == AccessRights::Read) {
-    return true;
-  }
-  if (c->status.is_left()) {
-    LOG(DEBUG) << "Have left basic group";
-    return false;
-  }
-  if (access_rights == AccessRights::Write && !c->is_active) {
-    LOG(DEBUG) << "Have inactive basic group";
-    return false;
-  }
-  return true;
-}
-
-tl_object_ptr<telegram_api::InputPeer> ChatManager::get_input_peer_chat(ChatId chat_id,
-                                                                        AccessRights access_rights) const {
-  auto c = get_chat(chat_id);
-  if (!have_input_peer_chat(c, access_rights)) {
-    return nullptr;
-  }
-
-  return make_tl_object<telegram_api::inputPeerChat>(chat_id.get());
-}
-
-bool ChatManager::have_input_peer_channel(ChannelId channel_id, AccessRights access_rights) const {
-  const Channel *c = get_channel(channel_id);
-  return have_input_peer_channel(c, channel_id, access_rights);
-}
-
-tl_object_ptr<telegram_api::InputPeer> ChatManager::get_input_peer_channel(ChannelId channel_id,
-                                                                           AccessRights access_rights) const {
-  const Channel *c = get_channel(channel_id);
-  if (!have_input_peer_channel(c, channel_id, access_rights)) {
-    return nullptr;
-  }
-  if (c == nullptr) {
-    if (td_->auth_manager_->is_bot() && channel_id.is_valid()) {
-      return make_tl_object<telegram_api::inputPeerChannel>(channel_id.get(), 0);
-    }
-    auto it = channel_messages_.find(channel_id);
-    CHECK(it != channel_messages_.end());
-    CHECK(!it->second.empty());
-    auto message_full_id = *it->second.begin();
-    return make_tl_object<telegram_api::inputPeerChannelFromMessage>(
-        get_simple_input_peer(message_full_id.get_dialog_id()),
-        message_full_id.get_message_id().get_server_message_id().get(), channel_id.get());
-  }
-
-  return make_tl_object<telegram_api::inputPeerChannel>(channel_id.get(), c->access_hash);
-}
-
-tl_object_ptr<telegram_api::InputPeer> ChatManager::get_simple_input_peer(DialogId dialog_id) const {
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  auto channel_id = dialog_id.get_channel_id();
-  const Channel *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  // if (!have_input_peer_channel(c, channel_id, AccessRights::Read)) {
-  //   return nullptr;
-  // }
-  return make_tl_object<telegram_api::inputPeerChannel>(channel_id.get(), c->access_hash);
-}
-
-bool ChatManager::have_input_peer_channel(const Channel *c, ChannelId channel_id, AccessRights access_rights,
-                                          bool from_linked) const {
-  if (c == nullptr) {
-    LOG(DEBUG) << "Have no " << channel_id;
-    if (td_->auth_manager_->is_bot() && channel_id.is_valid()) {
-      return true;
-    }
-    if (channel_messages_.count(channel_id) != 0) {
-      return true;
-    }
-    return false;
-  }
-  if (access_rights == AccessRights::Know) {
-    return true;
-  }
-  if (c->status.is_administrator()) {
-    return true;
-  }
-  if (c->status.is_banned()) {
-    LOG(DEBUG) << "Was banned in " << channel_id;
-    return false;
-  }
-  if (c->status.is_member()) {
-    return true;
-  }
-
-  bool is_public = is_channel_public(c);
-  if (access_rights == AccessRights::Read) {
-    if (is_public) {
-      return true;
-    }
-    if (!from_linked && c->has_linked_channel) {
-      auto linked_channel_id = get_linked_channel_id(channel_id);
-      if (linked_channel_id.is_valid() && have_channel(linked_channel_id)) {
-        if (have_input_peer_channel(get_channel(linked_channel_id), linked_channel_id, access_rights, true)) {
-          return true;
-        }
-      } else {
-        return true;
-      }
-    }
-    if (!from_linked && td_->dialog_invite_link_manager_->have_dialog_access_by_invite_link(DialogId(channel_id))) {
-      return true;
-    }
-  } else {
-    if (!from_linked && c->is_megagroup && !td_->auth_manager_->is_bot() && c->has_linked_channel) {
-      auto linked_channel_id = get_linked_channel_id(channel_id);
-      if (linked_channel_id.is_valid() && (is_public || have_channel(linked_channel_id))) {
-        return is_public ||
-               have_input_peer_channel(get_channel(linked_channel_id), linked_channel_id, AccessRights::Read, true);
-      } else {
-        return true;
-      }
-    }
-  }
-  LOG(DEBUG) << "Have no access to " << channel_id;
-  return false;
-}
-
-bool ChatManager::is_chat_received_from_server(ChatId chat_id) const {
-  const auto *c = get_chat(chat_id);
-  return c != nullptr && c->is_received_from_server;
-}
-
-bool ChatManager::is_channel_received_from_server(ChannelId channel_id) const {
-  const auto *c = get_channel(channel_id);
-  return c != nullptr && c->is_received_from_server;
-}
-
-const DialogPhoto *ChatManager::get_chat_dialog_photo(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return nullptr;
-  }
-  return &c->photo;
-}
-
-const DialogPhoto *ChatManager::get_channel_dialog_photo(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    auto min_channel = get_min_channel(channel_id);
-    if (min_channel != nullptr) {
-      return &min_channel->photo_;
-    }
-    return nullptr;
-  }
-  return &c->photo;
-}
-
-int32 ChatManager::get_chat_accent_color_id_object(ChatId chat_id) const {
-  return td_->theme_manager_->get_accent_color_id_object(AccentColorId(chat_id));
-}
-
-AccentColorId ChatManager::get_channel_accent_color_id(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    auto min_channel = get_min_channel(channel_id);
-    if (min_channel != nullptr && min_channel->accent_color_id_.is_valid()) {
-      return min_channel->accent_color_id_;
-    }
-    return AccentColorId(channel_id);
-  }
-  if (!c->accent_color_id.is_valid()) {
-    return AccentColorId(channel_id);
-  }
-
-  return c->accent_color_id;
-}
-
-int32 ChatManager::get_channel_accent_color_id_object(ChannelId channel_id) const {
-  return td_->theme_manager_->get_accent_color_id_object(get_channel_accent_color_id(channel_id),
-                                                         AccentColorId(channel_id));
-}
-
-CustomEmojiId ChatManager::get_chat_background_custom_emoji_id(ChatId chat_id) const {
-  return CustomEmojiId();
-}
-
-CustomEmojiId ChatManager::get_channel_background_custom_emoji_id(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return CustomEmojiId();
-  }
-
-  return c->background_custom_emoji_id;
-}
-
-int32 ChatManager::get_chat_profile_accent_color_id_object(ChatId chat_id) const {
-  return -1;
-}
-
-int32 ChatManager::get_channel_profile_accent_color_id_object(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return -1;
-  }
-  return td_->theme_manager_->get_profile_accent_color_id_object(c->profile_accent_color_id);
-}
-
-CustomEmojiId ChatManager::get_chat_profile_background_custom_emoji_id(ChatId chat_id) const {
-  return CustomEmojiId();
-}
-
-CustomEmojiId ChatManager::get_channel_profile_background_custom_emoji_id(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return CustomEmojiId();
-  }
-
-  return c->profile_background_custom_emoji_id;
-}
-
-string ChatManager::get_chat_title(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return string();
-  }
-  return c->title;
-}
-
-string ChatManager::get_channel_title(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    auto min_channel = get_min_channel(channel_id);
-    if (min_channel != nullptr) {
-      return min_channel->title_;
-    }
-    return string();
-  }
-  return c->title;
-}
-
-RestrictedRights ChatManager::get_chat_default_permissions(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return RestrictedRights(false, false, false, false, false, false, false, false, false, false, false, false, false,
-                            false, false, false, false, ChannelType::Unknown);
-  }
-  return c->default_permissions;
-}
-
-RestrictedRights ChatManager::get_channel_default_permissions(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return RestrictedRights(false, false, false, false, false, false, false, false, false, false, false, false, false,
-                            false, false, false, false, ChannelType::Unknown);
-  }
-  return c->default_permissions;
-}
-
-td_api::object_ptr<td_api::emojiStatus> ChatManager::get_chat_emoji_status_object(ChatId chat_id) const {
-  return nullptr;
-}
-
-td_api::object_ptr<td_api::emojiStatus> ChatManager::get_channel_emoji_status_object(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr || c->last_sent_emoji_status == nullptr) {
-    return nullptr;
-  }
-  return c->last_sent_emoji_status->get_emoji_status_object();
-}
-
-bool ChatManager::get_chat_has_protected_content(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return c->noforwards;
-}
-
-bool ChatManager::get_channel_has_protected_content(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return c->noforwards;
-}
-
-bool ChatManager::get_channel_stories_hidden(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return c->stories_hidden;
-}
-
-bool ChatManager::can_poll_channel_active_stories(ChannelId channel_id) const {
-  const Channel *c = get_channel(channel_id);
-  return need_poll_channel_active_stories(c, channel_id) && Time::now() >= c->max_active_story_id_next_reload_time;
-}
-
-bool ChatManager::can_use_premium_custom_emoji_in_channel(ChannelId channel_id) const {
-  if (!is_megagroup_channel(channel_id)) {
-    return false;
-  }
-  auto channel_full = get_channel_full_const(channel_id);
-  return channel_full == nullptr || channel_full->emoji_sticker_set_id.is_valid();
-}
-
-string ChatManager::get_chat_about(ChatId chat_id) {
-  auto chat_full = get_chat_full_force(chat_id, "get_chat_about");
-  if (chat_full != nullptr) {
-    return chat_full->description;
-  }
-  return string();
-}
-
-string ChatManager::get_channel_about(ChannelId channel_id) {
-  auto channel_full = get_channel_full_force(channel_id, false, "get_channel_about");
-  if (channel_full != nullptr) {
-    return channel_full->description;
-  }
-  return string();
-}
-
-string ChatManager::get_channel_search_text(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return get_channel_title(channel_id);
-  }
-  return PSTRING() << c->title << ' ' << implode(c->usernames.get_active_usernames());
-}
-
-string ChatManager::get_channel_first_username(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return string();
-  }
-  return c->usernames.get_first_username();
-}
-
-string ChatManager::get_channel_editable_username(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return string();
-  }
-  return c->usernames.get_editable_username();
-}
-
-ChannelId ChatManager::get_unsupported_channel_id() {
-  return ChannelId(static_cast<int64>(G()->is_test_dc() ? 10304875 : 1535424647));
-}
-
-void ChatManager::set_chat_description(ChatId chat_id, const string &description, Promise<Unit> &&promise) {
-  auto new_description = strip_empty_characters(description, MAX_DESCRIPTION_LENGTH);
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  if (!get_chat_permissions(c).can_change_info_and_settings()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to set chat description"));
-  }
-
-  td_->create_handler<EditChatAboutQuery>(std::move(promise))->send(DialogId(chat_id), new_description);
-}
-
-void ChatManager::set_channel_username(ChannelId channel_id, const string &username, Promise<Unit> &&promise) {
-  const auto *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!get_channel_status(c).is_creator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to change supergroup username"));
-  }
-
-  if (!username.empty() && !is_allowed_username(username)) {
-    return promise.set_error(Status::Error(400, "Username is invalid"));
-  }
-
-  td_->create_handler<UpdateChannelUsernameQuery>(std::move(promise))->send(channel_id, username);
-}
-
-void ChatManager::toggle_channel_username_is_active(ChannelId channel_id, string &&username, bool is_active,
-                                                    Promise<Unit> &&promise) {
-  const auto *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!get_channel_status(c).is_creator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to change username"));
-  }
-  if (!c->usernames.can_toggle(username)) {
-    return promise.set_error(Status::Error(400, "Wrong username specified"));
-  }
-  td_->create_handler<ToggleChannelUsernameQuery>(std::move(promise))->send(channel_id, std::move(username), is_active);
-}
-
-void ChatManager::disable_all_channel_usernames(ChannelId channel_id, Promise<Unit> &&promise) {
-  const auto *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!get_channel_status(c).is_creator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to disable usernames"));
-  }
-  td_->create_handler<DeactivateAllChannelUsernamesQuery>(std::move(promise))->send(channel_id);
-}
-
-void ChatManager::reorder_channel_usernames(ChannelId channel_id, vector<string> &&usernames, Promise<Unit> &&promise) {
-  const auto *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!get_channel_status(c).is_creator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to reorder usernames"));
-  }
-  if (!c->usernames.can_reorder_to(usernames)) {
-    return promise.set_error(Status::Error(400, "Invalid username order specified"));
-  }
-  if (usernames.size() <= 1) {
-    return promise.set_value(Unit());
-  }
-  td_->create_handler<ReorderChannelUsernamesQuery>(std::move(promise))->send(channel_id, std::move(usernames));
-}
-
-void ChatManager::on_update_channel_username_is_active(ChannelId channel_id, string &&username, bool is_active,
-                                                       Promise<Unit> &&promise) {
-  auto *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  if (!c->usernames.can_toggle(username)) {
-    return reload_channel(channel_id, std::move(promise), "on_update_channel_username_is_active");
-  }
-  on_update_channel_usernames(c, channel_id, c->usernames.toggle(username, is_active));
-  update_channel(c, channel_id);
-  promise.set_value(Unit());
-}
-
-void ChatManager::on_deactivate_channel_usernames(ChannelId channel_id, Promise<Unit> &&promise) {
-  auto *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  on_update_channel_usernames(c, channel_id, c->usernames.deactivate_all());
-  update_channel(c, channel_id);
-  promise.set_value(Unit());
-}
-
-void ChatManager::on_update_channel_active_usernames_order(ChannelId channel_id, vector<string> &&usernames,
-                                                           Promise<Unit> &&promise) {
-  auto *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  if (!c->usernames.can_reorder_to(usernames)) {
-    return reload_channel(channel_id, std::move(promise), "on_update_channel_active_usernames_order");
-  }
-  on_update_channel_usernames(c, channel_id, c->usernames.reorder_to(std::move(usernames)));
-  update_channel(c, channel_id);
-  promise.set_value(Unit());
-}
-
-void ChatManager::set_channel_accent_color(ChannelId channel_id, AccentColorId accent_color_id,
-                                           CustomEmojiId background_custom_emoji_id, Promise<Unit> &&promise) {
-  if (!accent_color_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid accent color identifier specified"));
-  }
-
-  const auto *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "Accent color can be changed only in channel chats"));
-  }
-  if (!get_channel_permissions(channel_id, c).can_change_info_and_settings_as_administrator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights in the channel"));
-  }
-
-  td_->create_handler<UpdateChannelColorQuery>(std::move(promise))
-      ->send(channel_id, false, accent_color_id, background_custom_emoji_id);
-}
-
-void ChatManager::set_channel_profile_accent_color(ChannelId channel_id, AccentColorId profile_accent_color_id,
-                                                   CustomEmojiId profile_background_custom_emoji_id,
-                                                   Promise<Unit> &&promise) {
-  const auto *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (!get_channel_permissions(channel_id, c).can_change_info_and_settings_as_administrator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights in the chat"));
-  }
-
-  td_->create_handler<UpdateChannelColorQuery>(std::move(promise))
-      ->send(channel_id, true, profile_accent_color_id, profile_background_custom_emoji_id);
-}
-
-void ChatManager::set_channel_emoji_status(ChannelId channel_id, const unique_ptr<EmojiStatus> &emoji_status,
-                                           Promise<Unit> &&promise) {
-  const auto *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (!get_channel_permissions(channel_id, c).can_change_info_and_settings_as_administrator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights in the chat"));
-  }
-
-  if (emoji_status != nullptr) {
-    add_recent_emoji_status(td_, *emoji_status);
-  }
-
-  td_->create_handler<UpdateChannelEmojiStatusQuery>(std::move(promise))->send(channel_id, emoji_status);
-}
-
-void ChatManager::set_channel_sticker_set(ChannelId channel_id, StickerSetId sticker_set_id, Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "Chat sticker set can be set only for supergroups"));
-  }
-  if (!get_channel_permissions(channel_id, c).can_change_info_and_settings_as_administrator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to change supergroup sticker set"));
-  }
-
-  telegram_api::object_ptr<telegram_api::InputStickerSet> input_sticker_set;
-  if (!sticker_set_id.is_valid()) {
-    input_sticker_set = telegram_api::make_object<telegram_api::inputStickerSetEmpty>();
-  } else {
-    input_sticker_set = td_->stickers_manager_->get_input_sticker_set(sticker_set_id);
-    if (input_sticker_set == nullptr) {
-      return promise.set_error(Status::Error(400, "Sticker set not found"));
-    }
-  }
-
-  auto channel_full = get_channel_full(channel_id, false, "set_channel_sticker_set");
-  if (channel_full != nullptr && !channel_full->can_set_sticker_set) {
-    return promise.set_error(Status::Error(400, "Can't set supergroup sticker set"));
-  }
-
-  td_->create_handler<SetChannelStickerSetQuery>(std::move(promise))
-      ->send(channel_id, sticker_set_id, std::move(input_sticker_set));
-}
-
-void ChatManager::set_channel_emoji_sticker_set(ChannelId channel_id, StickerSetId sticker_set_id,
-                                                Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "Cuctom emoji sticker set can be set only for supergroups"));
-  }
-  if (!get_channel_permissions(channel_id, c).can_change_info_and_settings_as_administrator()) {
-    return promise.set_error(
-        Status::Error(400, "Not enough rights to change custom emoji sticker set in the supergroup"));
-  }
-
-  telegram_api::object_ptr<telegram_api::InputStickerSet> input_sticker_set;
-  if (!sticker_set_id.is_valid()) {
-    input_sticker_set = telegram_api::make_object<telegram_api::inputStickerSetEmpty>();
-  } else {
-    input_sticker_set = td_->stickers_manager_->get_input_sticker_set(sticker_set_id);
-    if (input_sticker_set == nullptr) {
-      return promise.set_error(Status::Error(400, "Sticker set not found"));
-    }
-  }
-
-  td_->create_handler<SetChannelEmojiStickerSetQuery>(std::move(promise))
-      ->send(channel_id, sticker_set_id, std::move(input_sticker_set));
-}
-
-void ChatManager::set_channel_unrestrict_boost_count(ChannelId channel_id, int32 unrestrict_boost_count,
-                                                     Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "Unrestrict boost count can be set only for supergroups"));
-  }
-  if (!get_channel_status(c).can_restrict_members()) {
-    return promise.set_error(
-        Status::Error(400, "Not enough rights to change unrestrict boost count set in the supergroup"));
-  }
-  if (unrestrict_boost_count < 0 || unrestrict_boost_count > 8) {
-    return promise.set_error(Status::Error(400, "Invalid new value for the unrestrict boost count specified"));
-  }
-
-  td_->create_handler<SetChannelBoostsToUnblockRestrictionsQuery>(std::move(promise))
-      ->send(channel_id, unrestrict_boost_count);
-}
-
-void ChatManager::toggle_channel_sign_messages(ChannelId channel_id, bool sign_messages, bool show_message_sender,
-                                               Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (get_channel_type(c) == ChannelType::Megagroup) {
-    return promise.set_error(Status::Error(400, "Message signatures can't be toggled in supergroups"));
-  }
-  if (!get_channel_permissions(channel_id, c).can_change_info_and_settings()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to toggle channel sign messages"));
-  }
-
-  td_->create_handler<ToggleChannelSignaturesQuery>(std::move(promise))
-      ->send(channel_id, sign_messages, show_message_sender);
-}
-
-void ChatManager::toggle_channel_join_to_send(ChannelId channel_id, bool join_to_send, Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (get_channel_type(c) == ChannelType::Broadcast || c->is_gigagroup) {
-    return promise.set_error(Status::Error(400, "The method can be called only for ordinary supergroups"));
-  }
-  if (!get_channel_status(c).can_restrict_members()) {
-    return promise.set_error(Status::Error(400, "Not enough rights"));
-  }
-
-  td_->create_handler<ToggleChannelJoinToSendQuery>(std::move(promise))->send(channel_id, join_to_send);
-}
-
-void ChatManager::toggle_channel_join_request(ChannelId channel_id, bool join_request, Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (get_channel_type(c) == ChannelType::Broadcast || c->is_gigagroup) {
-    return promise.set_error(Status::Error(400, "The method can be called only for ordinary supergroups"));
-  }
-  if (!get_channel_status(c).can_restrict_members()) {
-    return promise.set_error(Status::Error(400, "Not enough rights"));
-  }
-
-  td_->create_handler<ToggleChannelJoinRequestQuery>(std::move(promise))->send(channel_id, join_request);
-}
-
-void ChatManager::toggle_channel_is_all_history_available(ChannelId channel_id, bool is_all_history_available,
-                                                          Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!get_channel_permissions(channel_id, c).can_change_info_and_settings()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to toggle all supergroup history availability"));
-  }
-  if (get_channel_type(c) != ChannelType::Megagroup) {
-    return promise.set_error(Status::Error(400, "Message history can be hidden in supergroups only"));
-  }
-  if (c->is_forum && !is_all_history_available) {
-    return promise.set_error(Status::Error(400, "Message history can't be hidden in forum supergroups"));
-  }
-  if (c->has_linked_channel && !is_all_history_available) {
-    return promise.set_error(Status::Error(400, "Message history can't be hidden in discussion supergroups"));
-  }
-  // it can be toggled in public chats, but will not affect them
-
-  td_->create_handler<TogglePrehistoryHiddenQuery>(std::move(promise))->send(channel_id, is_all_history_available);
-}
-
-void ChatManager::toggle_channel_can_have_sponsored_messages(ChannelId channel_id, bool can_have_sponsored_messages,
-                                                             Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!get_channel_status(c).is_creator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to disable sponsored messages"));
-  }
-  if (get_channel_type(c) != ChannelType::Broadcast) {
-    return promise.set_error(Status::Error(400, "Sponsored messages can be disabled only in channels"));
-  }
-
-  td_->create_handler<RestrictSponsoredMessagesQuery>(std::move(promise))
-      ->send(channel_id, can_have_sponsored_messages);
-}
-
-Status ChatManager::can_hide_chat_participants(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return Status::Error(400, "Basic group not found");
-  }
-  if (!get_chat_permissions(c).is_creator()) {
-    return Status::Error(400, "Not enough rights to hide group members");
-  }
-  if (c->participant_count < td_->option_manager_->get_option_integer("hidden_members_group_size_min")) {
-    return Status::Error(400, "The basic group is too small");
-  }
-  return Status::OK();
-}
-
-Status ChatManager::can_hide_channel_participants(ChannelId channel_id, const ChannelFull *channel_full) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return Status::Error(400, "Supergroup not found");
-  }
-  if (!get_channel_status(c).can_restrict_members()) {
-    return Status::Error(400, "Not enough rights to hide group members");
-  }
-  if (get_channel_type(c) != ChannelType::Megagroup) {
-    return Status::Error(400, "Group members are hidden by default in channels");
-  }
-  if (channel_full != nullptr && channel_full->has_hidden_participants) {
-    return Status::OK();
-  }
-  if (c->participant_count > 0 &&
-      c->participant_count < td_->option_manager_->get_option_integer("hidden_members_group_size_min")) {
-    return Status::Error(400, "The supergroup is too small");
-  }
-  return Status::OK();
-}
-
-void ChatManager::toggle_channel_has_hidden_participants(ChannelId channel_id, bool has_hidden_participants,
-                                                         Promise<Unit> &&promise) {
-  auto channel_full = get_channel_full_force(channel_id, true, "toggle_channel_has_hidden_participants");
-  TRY_STATUS_PROMISE(promise, can_hide_channel_participants(channel_id, channel_full));
-
-  td_->create_handler<ToggleParticipantsHiddenQuery>(std::move(promise))->send(channel_id, has_hidden_participants);
-}
-
-Status ChatManager::can_toggle_chat_aggressive_anti_spam(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return Status::Error(400, "Basic group not found");
-  }
-  if (!get_chat_permissions(c).is_creator()) {
-    return Status::Error(400, "Not enough rights to enable aggressive anti-spam checks");
-  }
-  if (c->participant_count <
-      td_->option_manager_->get_option_integer("aggressive_anti_spam_supergroup_member_count_min")) {
-    return Status::Error(400, "The basic group is too small");
-  }
-  return Status::OK();
-}
-
-Status ChatManager::can_toggle_channel_aggressive_anti_spam(ChannelId channel_id,
-                                                            const ChannelFull *channel_full) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return Status::Error(400, "Supergroup not found");
-  }
-  if (!get_channel_status(c).can_delete_messages()) {
-    return Status::Error(400, "Not enough rights to enable aggressive anti-spam checks");
-  }
-  if (get_channel_type(c) != ChannelType::Megagroup) {
-    return Status::Error(400, "Aggressive anti-spam checks can be enabled in supergroups only");
-  }
-  if (c->is_gigagroup) {
-    return Status::Error(400, "Aggressive anti-spam checks can't be enabled in broadcast supergroups");
-  }
-  if (channel_full != nullptr && channel_full->has_aggressive_anti_spam_enabled) {
-    return Status::OK();
-  }
-  if (c->has_location || begins_with(c->usernames.get_editable_username(), "translation_")) {
-    return Status::OK();
-  }
-  if (c->participant_count > 0 && c->participant_count < td_->option_manager_->get_option_integer(
-                                                             "aggressive_anti_spam_supergroup_member_count_min")) {
-    return Status::Error(400, "The supergroup is too small");
-  }
-  return Status::OK();
-}
-
-void ChatManager::toggle_channel_has_aggressive_anti_spam_enabled(ChannelId channel_id,
-                                                                  bool has_aggressive_anti_spam_enabled,
-                                                                  Promise<Unit> &&promise) {
-  auto channel_full = get_channel_full_force(channel_id, true, "toggle_channel_has_aggressive_anti_spam_enabled");
-  TRY_STATUS_PROMISE(promise, can_toggle_channel_aggressive_anti_spam(channel_id, channel_full));
-
-  td_->create_handler<ToggleAntiSpamQuery>(std::move(promise))->send(channel_id, has_aggressive_anti_spam_enabled);
-}
-
-void ChatManager::toggle_channel_is_forum(ChannelId channel_id, bool is_forum, Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (c->is_forum == is_forum) {
-    return promise.set_value(Unit());
-  }
-  if (!get_channel_status(c).is_creator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to convert the group to a forum"));
-  }
-  if (get_channel_type(c) != ChannelType::Megagroup) {
-    return promise.set_error(Status::Error(400, "Forums can be enabled in supergroups only"));
-  }
-
-  td_->create_handler<ToggleForumQuery>(std::move(promise))->send(channel_id, is_forum);
-}
-
-void ChatManager::convert_channel_to_gigagroup(ChannelId channel_id, Promise<Unit> &&promise) {
-  if (!can_convert_channel_to_gigagroup(channel_id)) {
-    return promise.set_error(Status::Error(400, "Can't convert the chat to a broadcast group"));
-  }
-
-  td_->suggested_action_manager_->remove_dialog_suggested_action(
-      SuggestedAction{SuggestedAction::Type::ConvertToGigagroup, DialogId(channel_id)});
-
-  td_->create_handler<ConvertToGigagroupQuery>(std::move(promise))->send(channel_id);
-}
-
-void ChatManager::set_channel_description(ChannelId channel_id, const string &description, Promise<Unit> &&promise) {
-  auto new_description = strip_empty_characters(description, MAX_DESCRIPTION_LENGTH);
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  if (!get_channel_permissions(channel_id, c).can_change_info_and_settings()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to set chat description"));
-  }
-
-  td_->create_handler<EditChatAboutQuery>(std::move(promise))->send(DialogId(channel_id), new_description);
-}
-
-void ChatManager::set_channel_discussion_group(DialogId dialog_id, DialogId discussion_dialog_id,
-                                               Promise<Unit> &&promise) {
-  if (!dialog_id.is_valid() && !discussion_dialog_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid chat identifiers specified"));
-  }
-
-  ChannelId broadcast_channel_id;
-  telegram_api::object_ptr<telegram_api::InputChannel> broadcast_input_channel;
-  if (dialog_id.is_valid()) {
-    if (!td_->dialog_manager_->have_dialog_force(dialog_id, "set_channel_discussion_group 1")) {
-      return promise.set_error(Status::Error(400, "Chat not found"));
-    }
-
-    if (dialog_id.get_type() != DialogType::Channel) {
-      return promise.set_error(Status::Error(400, "Chat is not a channel"));
-    }
-
-    broadcast_channel_id = dialog_id.get_channel_id();
-    const Channel *c = get_channel(broadcast_channel_id);
-    if (c == nullptr) {
-      return promise.set_error(Status::Error(400, "Chat info not found"));
-    }
-
-    if (c->is_megagroup) {
-      return promise.set_error(Status::Error(400, "Chat is not a channel"));
-    }
-    if (!c->status.can_change_info_and_settings_as_administrator()) {
-      return promise.set_error(Status::Error(400, "Not enough rights in the channel"));
-    }
-
-    broadcast_input_channel = get_input_channel(broadcast_channel_id);
-    CHECK(broadcast_input_channel != nullptr);
-  } else {
-    broadcast_input_channel = telegram_api::make_object<telegram_api::inputChannelEmpty>();
-  }
-
-  ChannelId group_channel_id;
-  telegram_api::object_ptr<telegram_api::InputChannel> group_input_channel;
-  if (discussion_dialog_id.is_valid()) {
-    if (!td_->dialog_manager_->have_dialog_force(discussion_dialog_id, "set_channel_discussion_group 2")) {
-      return promise.set_error(Status::Error(400, "Discussion chat not found"));
-    }
-    if (discussion_dialog_id.get_type() != DialogType::Channel) {
-      return promise.set_error(Status::Error(400, "Discussion chat is not a supergroup"));
-    }
-
-    group_channel_id = discussion_dialog_id.get_channel_id();
-    const Channel *c = get_channel(group_channel_id);
-    if (c == nullptr) {
-      return promise.set_error(Status::Error(400, "Discussion chat info not found"));
-    }
-
-    if (!c->is_megagroup) {
-      return promise.set_error(Status::Error(400, "Discussion chat is not a supergroup"));
-    }
-    if (!c->status.is_administrator() || !c->status.can_pin_messages()) {
-      return promise.set_error(Status::Error(400, "Not enough rights in the supergroup"));
-    }
-
-    group_input_channel = get_input_channel(group_channel_id);
-    CHECK(group_input_channel != nullptr);
-  } else {
-    group_input_channel = telegram_api::make_object<telegram_api::inputChannelEmpty>();
-  }
-
-  td_->create_handler<SetDiscussionGroupQuery>(std::move(promise))
-      ->send(broadcast_channel_id, std::move(broadcast_input_channel), group_channel_id,
-             std::move(group_input_channel));
-}
-
-void ChatManager::set_channel_location(ChannelId channel_id, const DialogLocation &location, Promise<Unit> &&promise) {
-  if (location.empty()) {
-    return promise.set_error(Status::Error(400, "Invalid chat location specified"));
-  }
-
-  const Channel *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  if (!c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "Chat is not a supergroup"));
-  }
-  if (!c->status.is_creator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights in the supergroup"));
-  }
-
-  td_->create_handler<EditLocationQuery>(std::move(promise))->send(channel_id, location);
-}
-
-void ChatManager::set_channel_slow_mode_delay(DialogId dialog_id, int32 slow_mode_delay, Promise<Unit> &&promise) {
-  vector<int32> allowed_slow_mode_delays{0, 10, 30, 60, 300, 900, 3600};
-  if (!td::contains(allowed_slow_mode_delays, slow_mode_delay)) {
-    return promise.set_error(Status::Error(400, "Invalid new value for slow mode delay"));
-  }
-
-  if (!dialog_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid chat identifier specified"));
-  }
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "set_channel_slow_mode_delay")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return promise.set_error(Status::Error(400, "Chat is not a supergroup"));
-  }
-
-  auto channel_id = dialog_id.get_channel_id();
-  const Channel *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  if (!c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "Chat is not a supergroup"));
-  }
-  if (!get_channel_status(c).can_restrict_members()) {
-    return promise.set_error(Status::Error(400, "Not enough rights in the supergroup"));
-  }
-
-  td_->create_handler<ToggleSlowModeQuery>(std::move(promise))->send(channel_id, slow_mode_delay);
-}
-
-void ChatManager::get_channel_statistics_dc_id(DialogId dialog_id, bool for_full_statistics, Promise<DcId> &&promise) {
-  if (!dialog_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid chat identifier specified"));
-  }
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "get_channel_statistics_dc_id")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return promise.set_error(Status::Error(400, "Chat is not a channel"));
-  }
-
-  auto channel_id = dialog_id.get_channel_id();
-  const Channel *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-
-  auto channel_full = get_channel_full_force(channel_id, false, "get_channel_statistics_dc_id");
-  if (channel_full == nullptr || !channel_full->stats_dc_id.is_exact() ||
-      (for_full_statistics && !channel_full->can_view_statistics)) {
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), channel_id, for_full_statistics,
-                                                 promise = std::move(promise)](Result<Unit> result) mutable {
-      send_closure(actor_id, &ChatManager::get_channel_statistics_dc_id_impl, channel_id, for_full_statistics,
-                   std::move(promise));
-    });
-    send_get_channel_full_query(channel_full, channel_id, std::move(query_promise), "get_channel_statistics_dc_id");
-    return;
-  }
-
-  promise.set_value(DcId(channel_full->stats_dc_id));
-}
-
-void ChatManager::get_channel_statistics_dc_id_impl(ChannelId channel_id, bool for_full_statistics,
-                                                    Promise<DcId> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto channel_full = get_channel_full(channel_id, false, "get_channel_statistics_dc_id_impl");
-  if (channel_full == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat full info not found"));
-  }
-
-  if (!channel_full->stats_dc_id.is_exact() || (for_full_statistics && !channel_full->can_view_statistics)) {
-    return promise.set_error(Status::Error(400, "Chat statistics are not available"));
-  }
-
-  promise.set_value(DcId(channel_full->stats_dc_id));
-}
-
-bool ChatManager::can_get_channel_message_statistics(ChannelId channel_id) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  const Channel *c = get_channel(channel_id);
-  if (c == nullptr || c->is_megagroup) {
-    return false;
-  }
-
-  auto channel_full = get_channel_full(channel_id);
-  if (channel_full != nullptr) {
-    return channel_full->stats_dc_id.is_exact();
-  }
-
-  return c->status.can_post_messages();
-}
-
-bool ChatManager::can_get_channel_story_statistics(ChannelId channel_id) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  const Channel *c = get_channel(channel_id);
-  if (c == nullptr || c->is_megagroup) {
-    return false;
-  }
-
-  auto channel_full = get_channel_full(channel_id);
-  if (channel_full != nullptr) {
-    return channel_full->stats_dc_id.is_exact();
-  }
-
-  return c->status.can_post_messages();
-}
-
-bool ChatManager::can_convert_channel_to_gigagroup(ChannelId channel_id) const {
-  const Channel *c = get_channel(channel_id);
-  return c == nullptr || get_channel_type(c) != ChannelType::Megagroup || !get_channel_status(c).is_creator() ||
-         c->is_gigagroup ||
-         c->default_permissions != RestrictedRights(false, false, false, false, false, false, false, false, false,
-                                                    false, false, false, false, false, false, false, false,
-                                                    ChannelType::Unknown);
-}
-
-void ChatManager::report_channel_spam(ChannelId channel_id, const vector<MessageId> &message_ids,
-                                      Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "Spam can be reported only in supergroups"));
-  }
-  if (!c->status.is_administrator()) {
-    return promise.set_error(Status::Error(400, "Spam can be reported only by chat administrators"));
-  }
-
-  FlatHashMap<DialogId, vector<MessageId>, DialogIdHash> server_message_ids;
-  for (auto &message_id : message_ids) {
-    TRY_STATUS_PROMISE(promise, MessagesManager::can_report_message(message_id));
-    auto sender_dialog_id = td_->messages_manager_->get_dialog_message_sender({DialogId(channel_id), message_id});
-    CHECK(sender_dialog_id.get_type() != DialogType::SecretChat);
-    if (sender_dialog_id.is_valid() && sender_dialog_id != td_->dialog_manager_->get_my_dialog_id() &&
-        td_->dialog_manager_->have_input_peer(sender_dialog_id, false, AccessRights::Know)) {
-      server_message_ids[sender_dialog_id].push_back(message_id);
-    }
-  }
-  if (server_message_ids.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  MultiPromiseActorSafe mpas{"ReportSupergroupSpamMultiPromiseActor"};
-  mpas.add_promise(std::move(promise));
-  auto lock_promise = mpas.get_promise();
-
-  for (auto &it : server_message_ids) {
-    td_->create_handler<ReportChannelSpamQuery>(mpas.get_promise())->send(channel_id, it.first, it.second);
-  }
-
-  lock_promise.set_value(Unit());
-}
-
-void ChatManager::report_channel_anti_spam_false_positive(ChannelId channel_id, MessageId message_id,
-                                                          Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-  if (!c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "The chat is not a supergroup"));
-  }
-  if (!c->status.is_administrator()) {
-    return promise.set_error(
-        Status::Error(400, "Anti-spam checks false positives can be reported only by chat administrators"));
-  }
-
-  if (!message_id.is_valid() || !message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Invalid message identifier specified"));
-  }
-
-  td_->create_handler<ReportChannelAntiSpamFalsePositiveQuery>(std::move(promise))->send(channel_id, message_id);
-}
-
-void ChatManager::set_channel_send_paid_messages_star_count(DialogId dialog_id, int64 send_paid_messages_star_count,
-                                                            Promise<Unit> &&promise) {
-  if (!dialog_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid chat identifier specified"));
-  }
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "set_channel_send_paid_messages_star_count")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return promise.set_error(Status::Error(400, "Chat is not a supergroup"));
-  }
-
-  auto channel_id = dialog_id.get_channel_id();
-  const Channel *c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  if (!c->is_megagroup) {
-    return promise.set_error(Status::Error(400, "Chat is not a supergroup"));
-  }
-  if (!get_channel_status(c).can_restrict_members()) {
-    return promise.set_error(Status::Error(400, "Not enough rights in the supergroup"));
-  }
-  if (send_paid_messages_star_count < 0 || send_paid_messages_star_count > 1000000) {
-    return promise.set_error(Status::Error(400, "Invalid number of Telegram Stars specified"));
-  }
-
-  td_->create_handler<UpdatePaidMessagesPriceQuery>(std::move(promise))
-      ->send(channel_id, send_paid_messages_star_count);
-}
-
-void ChatManager::delete_chat(ChatId chat_id, Promise<Unit> &&promise) {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  if (!get_chat_status(c).is_creator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to delete the chat"));
-  }
-  if (!c->is_active) {
-    return promise.set_error(Status::Error(400, "Chat is already deactivated"));
-  }
-
-  td_->create_handler<DeleteChatQuery>(std::move(promise))->send(chat_id);
-}
-
-void ChatManager::delete_channel(ChannelId channel_id, Promise<Unit> &&promise) {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  if (!get_channel_can_be_deleted(c)) {
-    return promise.set_error(Status::Error(400, "The chat can't be deleted"));
-  }
-
-  td_->create_handler<DeleteChannelQuery>(std::move(promise))->send(channel_id);
-}
-
-vector<ChannelId> ChatManager::get_channel_ids(vector<tl_object_ptr<telegram_api::Chat>> &&chats, const char *source) {
-  vector<ChannelId> channel_ids;
-  for (auto &chat : chats) {
-    auto channel_id = get_channel_id(chat);
-    if (!channel_id.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << channel_id << " from " << source << " in " << to_string(chat);
-      continue;
-    }
-    on_get_chat(std::move(chat), source);
-    if (have_channel(channel_id)) {
-      channel_ids.push_back(channel_id);
-    }
-  }
-  return channel_ids;
-}
-
-vector<DialogId> ChatManager::get_dialog_ids(vector<tl_object_ptr<telegram_api::Chat>> &&chats, const char *source) {
-  vector<DialogId> dialog_ids;
-  for (auto &chat : chats) {
-    auto channel_id = get_channel_id(chat);
-    if (!channel_id.is_valid()) {
-      auto chat_id = get_chat_id(chat);
-      if (!chat_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid chat from " << source << " in " << to_string(chat);
-      } else {
-        dialog_ids.push_back(DialogId(chat_id));
-      }
-    } else {
-      dialog_ids.push_back(DialogId(channel_id));
-    }
-    on_get_chat(std::move(chat), source);
-  }
-  return dialog_ids;
-}
-
-void ChatManager::return_created_public_dialogs(Promise<td_api::object_ptr<td_api::chats>> &&promise,
-                                                const vector<ChannelId> &channel_ids) {
-  if (!promise) {
-    return;
-  }
-
-  auto total_count = narrow_cast<int32>(channel_ids.size());
-  promise.set_value(td_api::make_object<td_api::chats>(
-      total_count, transform(channel_ids, [](ChannelId channel_id) { return DialogId(channel_id).get(); })));
-}
-
-bool ChatManager::is_suitable_created_public_channel(PublicDialogType type, const Channel *c) {
-  if (c == nullptr || !c->status.is_creator()) {
-    return false;
-  }
-
-  switch (type) {
-    case PublicDialogType::HasUsername:
-      return c->usernames.has_editable_username();
-    case PublicDialogType::IsLocationBased:
-      return c->has_location;
-    case PublicDialogType::ForPersonalDialog:
-      return !c->is_megagroup && c->usernames.has_first_username();
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-void ChatManager::get_created_public_dialogs(PublicDialogType type,
-                                             Promise<td_api::object_ptr<td_api::chats>> &&promise, bool from_binlog) {
-  auto index = static_cast<int32>(type);
-  if (created_public_channels_inited_[index]) {
-    return return_created_public_dialogs(std::move(promise), created_public_channels_[index]);
-  }
-
-  if (get_created_public_channels_queries_[index].empty() && G()->use_message_database()) {
-    auto pmc_key = PSTRING() << "public_channels" << index;
-    auto str = G()->td_db()->get_binlog_pmc()->get(pmc_key);
-    if (!str.empty()) {
-      auto r_channel_ids = transform(full_split(Slice(str), ','), [](Slice str) -> Result<ChannelId> {
-        TRY_RESULT(channel_id_int, to_integer_safe<int64>(str));
-        ChannelId channel_id(channel_id_int);
-        if (!channel_id.is_valid()) {
-          return Status::Error("Have invalid channel ID");
-        }
-        return channel_id;
-      });
-      if (any_of(r_channel_ids, [](const auto &r_channel_id) { return r_channel_id.is_error(); })) {
-        LOG(ERROR) << "Can't parse " << str;
-        G()->td_db()->get_binlog_pmc()->erase(pmc_key);
-      } else {
-        Dependencies dependencies;
-        vector<ChannelId> channel_ids;
-        for (auto &r_channel_id : r_channel_ids) {
-          auto channel_id = r_channel_id.move_as_ok();
-          dependencies.add_dialog_and_dependencies(DialogId(channel_id));
-          channel_ids.push_back(channel_id);
-        }
-        if (!dependencies.resolve_force(td_, "get_created_public_dialogs")) {
-          G()->td_db()->get_binlog_pmc()->erase(pmc_key);
-        } else {
-          for (auto channel_id : channel_ids) {
-            if (is_suitable_created_public_channel(type, get_channel(channel_id))) {
-              created_public_channels_[index].push_back(channel_id);
-            }
-          }
-          created_public_channels_inited_[index] = true;
-
-          if (from_binlog) {
-            return_created_public_dialogs(std::move(promise), created_public_channels_[index]);
-            promise = {};
-          }
-        }
-      }
-    }
-  }
-
-  reload_created_public_dialogs(type, std::move(promise));
-}
-
-void ChatManager::reload_created_public_dialogs(PublicDialogType type,
-                                                Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  auto index = static_cast<int32>(type);
-  get_created_public_channels_queries_[index].push_back(std::move(promise));
-  if (get_created_public_channels_queries_[index].size() == 1) {
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), type](Result<Unit> &&result) {
-      send_closure(actor_id, &ChatManager::finish_get_created_public_dialogs, type, std::move(result));
-    });
-    td_->create_handler<GetCreatedPublicChannelsQuery>(std::move(query_promise))->send(type, false);
-  }
-}
-
-void ChatManager::finish_get_created_public_dialogs(PublicDialogType type, Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto index = static_cast<int32>(type);
-  auto promises = std::move(get_created_public_channels_queries_[index]);
-  reset_to_empty(get_created_public_channels_queries_[index]);
-  if (result.is_error()) {
-    return fail_promises(promises, result.move_as_error());
-  }
-
-  CHECK(created_public_channels_inited_[index]);
-  for (auto &promise : promises) {
-    return_created_public_dialogs(std::move(promise), created_public_channels_[index]);
-  }
-}
-
-void ChatManager::update_created_public_channels(Channel *c, ChannelId channel_id) {
-  for (auto type :
-       {PublicDialogType::HasUsername, PublicDialogType::IsLocationBased, PublicDialogType::ForPersonalDialog}) {
-    auto index = static_cast<int32>(type);
-    if (!created_public_channels_inited_[index]) {
-      continue;
-    }
-    bool was_changed = false;
-    if (!is_suitable_created_public_channel(type, c)) {
-      was_changed = td::remove(created_public_channels_[index], channel_id);
-    } else {
-      if (!td::contains(created_public_channels_[index], channel_id)) {
-        created_public_channels_[index].push_back(channel_id);
-        was_changed = true;
-      }
-    }
-    if (was_changed) {
-      save_created_public_channels(type);
-
-      reload_created_public_dialogs(type, Promise<td_api::object_ptr<td_api::chats>>());
-    }
-  }
-}
-
-void ChatManager::on_get_created_public_channels(PublicDialogType type,
-                                                 vector<tl_object_ptr<telegram_api::Chat>> &&chats) {
-  auto index = static_cast<int32>(type);
-  auto channel_ids = get_channel_ids(std::move(chats), "on_get_created_public_channels");
-  if (created_public_channels_inited_[index] && created_public_channels_[index] == channel_ids) {
-    return;
-  }
-  created_public_channels_[index].clear();
-  for (auto channel_id : channel_ids) {
-    td_->dialog_manager_->force_create_dialog(DialogId(channel_id), "on_get_created_public_channels");
-    if (is_suitable_created_public_channel(type, get_channel(channel_id))) {
-      created_public_channels_[index].push_back(channel_id);
-    }
-  }
-  created_public_channels_inited_[index] = true;
-
-  save_created_public_channels(type);
-}
-
-void ChatManager::save_created_public_channels(PublicDialogType type) {
-  auto index = static_cast<int32>(type);
-  CHECK(created_public_channels_inited_[index]);
-  if (G()->use_message_database()) {
-    G()->td_db()->get_binlog_pmc()->set(
-        PSTRING() << "public_channels" << index,
-        implode(
-            transform(created_public_channels_[index], [](auto channel_id) { return PSTRING() << channel_id.get(); }),
-            ','));
-  }
-}
-
-void ChatManager::check_created_public_dialogs_limit(PublicDialogType type, Promise<Unit> &&promise) {
-  td_->create_handler<GetCreatedPublicChannelsQuery>(std::move(promise))->send(type, true);
-}
-
-bool ChatManager::are_created_public_broadcasts_inited() const {
-  return created_public_channels_inited_[2];
-}
-
-const vector<ChannelId> &ChatManager::get_created_public_broadcasts() const {
-  return created_public_channels_[2];
-}
-
-vector<DialogId> ChatManager::get_dialogs_for_discussion(Promise<Unit> &&promise) {
-  if (dialogs_for_discussion_inited_) {
-    promise.set_value(Unit());
-    return transform(dialogs_for_discussion_, [&](DialogId dialog_id) {
-      td_->dialog_manager_->force_create_dialog(dialog_id, "get_dialogs_for_discussion");
-      return dialog_id;
-    });
-  }
-
-  td_->create_handler<GetGroupsForDiscussionQuery>(std::move(promise))->send();
-  return {};
-}
-
-void ChatManager::on_get_dialogs_for_discussion(vector<tl_object_ptr<telegram_api::Chat>> &&chats) {
-  dialogs_for_discussion_inited_ = true;
-  dialogs_for_discussion_ = get_dialog_ids(std::move(chats), "on_get_dialogs_for_discussion");
-}
-
-void ChatManager::update_dialogs_for_discussion(DialogId dialog_id, bool is_suitable) {
-  if (!dialogs_for_discussion_inited_) {
-    return;
-  }
-
-  if (is_suitable) {
-    if (!td::contains(dialogs_for_discussion_, dialog_id)) {
-      LOG(DEBUG) << "Add " << dialog_id << " to list of suitable discussion chats";
-      dialogs_for_discussion_.insert(dialogs_for_discussion_.begin(), dialog_id);
-    }
-  } else {
-    if (td::remove(dialogs_for_discussion_, dialog_id)) {
-      LOG(DEBUG) << "Remove " << dialog_id << " from list of suitable discussion chats";
-    }
-  }
-}
-
-vector<DialogId> ChatManager::get_inactive_channels(Promise<Unit> &&promise) {
-  if (inactive_channel_ids_inited_) {
-    promise.set_value(Unit());
-    return transform(inactive_channel_ids_, [&](ChannelId channel_id) { return DialogId(channel_id); });
-  }
-
-  td_->create_handler<GetInactiveChannelsQuery>(std::move(promise))->send();
-  return {};
-}
-
-void ChatManager::on_get_inactive_channels(vector<tl_object_ptr<telegram_api::Chat>> &&chats, Promise<Unit> &&promise) {
-  auto channel_ids = get_channel_ids(std::move(chats), "on_get_inactive_channels");
-
-  MultiPromiseActorSafe mpas{"GetInactiveChannelsMultiPromiseActor"};
-  mpas.add_promise(
-      PromiseCreator::lambda([actor_id = actor_id(this), channel_ids, promise = std::move(promise)](Unit) mutable {
-        send_closure(actor_id, &ChatManager::on_create_inactive_channels, std::move(channel_ids), std::move(promise));
-      }));
-  mpas.set_ignore_errors(true);
-  auto lock_promise = mpas.get_promise();
-
-  for (auto channel_id : channel_ids) {
-    td_->messages_manager_->create_dialog(DialogId(channel_id), false, mpas.get_promise());
-  }
-
-  lock_promise.set_value(Unit());
-}
-
-void ChatManager::on_create_inactive_channels(vector<ChannelId> &&channel_ids, Promise<Unit> &&promise) {
-  inactive_channel_ids_inited_ = true;
-  inactive_channel_ids_ = std::move(channel_ids);
-  promise.set_value(Unit());
-}
-
-void ChatManager::remove_inactive_channel(ChannelId channel_id) {
-  if (inactive_channel_ids_inited_ && td::remove(inactive_channel_ids_, channel_id)) {
-    LOG(DEBUG) << "Remove " << channel_id << " from list of inactive channels";
-  }
-}
-
-void ChatManager::register_message_channels(MessageFullId message_full_id, vector<ChannelId> channel_ids) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  if (!have_channel(dialog_id.get_channel_id())) {
-    return;
-  }
-  for (auto channel_id : channel_ids) {
-    CHECK(channel_id.is_valid());
-    if (!have_channel(channel_id)) {
-      channel_messages_[channel_id].insert(message_full_id);
-
-      // get info about the channel
-      get_channel_queries_.add_query(channel_id.get(), Promise<Unit>(), "register_message_channels");
-    }
-  }
-}
-
-void ChatManager::unregister_message_channels(MessageFullId message_full_id, vector<ChannelId> channel_ids) {
-  if (channel_messages_.empty()) {
-    // fast path
-    return;
-  }
-  for (auto channel_id : channel_ids) {
-    auto it = channel_messages_.find(channel_id);
-    if (it != channel_messages_.end()) {
-      it->second.erase(message_full_id);
-      if (it->second.empty()) {
-        channel_messages_.erase(it);
-      }
-    }
-  }
-}
-
-ChatId ChatManager::get_chat_id(const tl_object_ptr<telegram_api::Chat> &chat) {
-  CHECK(chat != nullptr);
-  switch (chat->get_id()) {
-    case telegram_api::chatEmpty::ID:
-      return ChatId(static_cast<const telegram_api::chatEmpty *>(chat.get())->id_);
-    case telegram_api::chat::ID:
-      return ChatId(static_cast<const telegram_api::chat *>(chat.get())->id_);
-    case telegram_api::chatForbidden::ID:
-      return ChatId(static_cast<const telegram_api::chatForbidden *>(chat.get())->id_);
-    default:
-      return ChatId();
-  }
-}
-
-ChannelId ChatManager::get_channel_id(const tl_object_ptr<telegram_api::Chat> &chat) {
-  CHECK(chat != nullptr);
-  switch (chat->get_id()) {
-    case telegram_api::channel::ID:
-      return ChannelId(static_cast<const telegram_api::channel *>(chat.get())->id_);
-    case telegram_api::channelForbidden::ID:
-      return ChannelId(static_cast<const telegram_api::channelForbidden *>(chat.get())->id_);
-    default:
-      return ChannelId();
-  }
-}
-
-DialogId ChatManager::get_dialog_id(const tl_object_ptr<telegram_api::Chat> &chat) {
-  auto channel_id = get_channel_id(chat);
-  if (channel_id.is_valid()) {
-    return DialogId(channel_id);
-  }
-  return DialogId(get_chat_id(chat));
-}
-
-class ChatManager::ChatLogEvent {
- public:
-  ChatId chat_id;
-  const Chat *c_in = nullptr;
-  unique_ptr<Chat> c_out;
-
-  ChatLogEvent() = default;
-
-  ChatLogEvent(ChatId chat_id, const Chat *c) : chat_id(chat_id), c_in(c) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(chat_id, storer);
-    td::store(*c_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(chat_id, parser);
-    td::parse(c_out, parser);
-  }
-};
-
-void ChatManager::save_chat(Chat *c, ChatId chat_id, bool from_binlog) {
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-  CHECK(c != nullptr);
-  if (!c->is_saved) {
-    if (!from_binlog) {
-      auto log_event = ChatLogEvent(chat_id, c);
-      auto storer = get_log_event_storer(log_event);
-      if (c->log_event_id == 0) {
-        c->log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::Chats, storer);
-      } else {
-        binlog_rewrite(G()->td_db()->get_binlog(), c->log_event_id, LogEvent::HandlerType::Chats, storer);
-      }
-    }
-
-    save_chat_to_database(c, chat_id);
-    return;
-  }
-}
-
-void ChatManager::on_binlog_chat_event(BinlogEvent &&event) {
-  if (!G()->use_chat_info_database()) {
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  ChatLogEvent log_event;
-  if (log_event_parse(log_event, event.get_data()).is_error()) {
-    LOG(ERROR) << "Failed to load a basic group from binlog";
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  auto chat_id = log_event.chat_id;
-  if (have_chat(chat_id) || !chat_id.is_valid()) {
-    LOG(ERROR) << "Skip adding already added " << chat_id;
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  LOG(INFO) << "Add " << chat_id << " from binlog";
-  chats_.set(chat_id, std::move(log_event.c_out));
-
-  Chat *c = get_chat(chat_id);
-  CHECK(c != nullptr);
-  c->log_event_id = event.id_;
-
-  update_chat(c, chat_id, true, false);
-}
-
-string ChatManager::get_chat_database_key(ChatId chat_id) {
-  return PSTRING() << "gr" << chat_id.get();
-}
-
-string ChatManager::get_chat_database_value(const Chat *c) {
-  return log_event_store(*c).as_slice().str();
-}
-
-void ChatManager::save_chat_to_database(Chat *c, ChatId chat_id) {
-  CHECK(c != nullptr);
-  if (c->is_being_saved) {
-    return;
-  }
-  if (loaded_from_database_chats_.count(chat_id)) {
-    save_chat_to_database_impl(c, chat_id, get_chat_database_value(c));
-    return;
-  }
-  if (load_chat_from_database_queries_.count(chat_id) != 0) {
-    return;
-  }
-
-  load_chat_from_database_impl(chat_id, Auto());
-}
-
-void ChatManager::save_chat_to_database_impl(Chat *c, ChatId chat_id, string value) {
-  CHECK(c != nullptr);
-  CHECK(load_chat_from_database_queries_.count(chat_id) == 0);
-  CHECK(!c->is_being_saved);
-  c->is_being_saved = true;
-  c->is_saved = true;
-  LOG(INFO) << "Trying to save to database " << chat_id;
-  G()->td_db()->get_sqlite_pmc()->set(
-      get_chat_database_key(chat_id), std::move(value), PromiseCreator::lambda([chat_id](Result<> result) {
-        send_closure(G()->chat_manager(), &ChatManager::on_save_chat_to_database, chat_id, result.is_ok());
-      }));
-}
-
-void ChatManager::on_save_chat_to_database(ChatId chat_id, bool success) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  Chat *c = get_chat(chat_id);
-  CHECK(c != nullptr);
-  CHECK(c->is_being_saved);
-  CHECK(load_chat_from_database_queries_.count(chat_id) == 0);
-  c->is_being_saved = false;
-
-  if (!success) {
-    LOG(ERROR) << "Failed to save " << chat_id << " to database";
-    c->is_saved = false;
-  } else {
-    LOG(INFO) << "Successfully saved " << chat_id << " to database";
-  }
-  if (c->is_saved) {
-    if (c->log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), c->log_event_id);
-      c->log_event_id = 0;
-    }
-  } else {
-    save_chat(c, chat_id, c->log_event_id != 0);
-  }
-}
-
-void ChatManager::load_chat_from_database(Chat *c, ChatId chat_id, Promise<Unit> promise) {
-  if (loaded_from_database_chats_.count(chat_id)) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  CHECK(c == nullptr || !c->is_being_saved);
-  load_chat_from_database_impl(chat_id, std::move(promise));
-}
-
-void ChatManager::load_chat_from_database_impl(ChatId chat_id, Promise<Unit> promise) {
-  LOG(INFO) << "Load " << chat_id << " from database";
-  auto &load_chat_queries = load_chat_from_database_queries_[chat_id];
-  load_chat_queries.push_back(std::move(promise));
-  if (load_chat_queries.size() == 1u) {
-    G()->td_db()->get_sqlite_pmc()->get(get_chat_database_key(chat_id), PromiseCreator::lambda([chat_id](string value) {
-                                          send_closure(G()->chat_manager(), &ChatManager::on_load_chat_from_database,
-                                                       chat_id, std::move(value), false);
-                                        }));
-  }
-}
-
-void ChatManager::on_load_chat_from_database(ChatId chat_id, string value, bool force) {
-  if (G()->close_flag() && !force) {
-    // the chat is in Binlog and will be saved after restart
-    return;
-  }
-
-  CHECK(chat_id.is_valid());
-  if (!loaded_from_database_chats_.insert(chat_id).second) {
-    return;
-  }
-
-  auto it = load_chat_from_database_queries_.find(chat_id);
-  vector<Promise<Unit>> promises;
-  if (it != load_chat_from_database_queries_.end()) {
-    promises = std::move(it->second);
-    CHECK(!promises.empty());
-    load_chat_from_database_queries_.erase(it);
-  }
-
-  LOG(INFO) << "Successfully loaded " << chat_id << " of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_chat_database_key(chat_id), Auto());
-  //  return;
-
-  Chat *c = get_chat(chat_id);
-  if (c == nullptr) {
-    if (!value.empty()) {
-      c = add_chat(chat_id);
-
-      if (log_event_parse(*c, value).is_error()) {
-        LOG(ERROR) << "Failed to load " << chat_id << " from database";
-        chats_.erase(chat_id);
-      } else {
-        c->is_saved = true;
-        update_chat(c, chat_id, true, true);
-      }
-    }
-  } else {
-    CHECK(!c->is_saved);  // chat can't be saved before load completes
-    CHECK(!c->is_being_saved);
-    auto new_value = get_chat_database_value(c);
-    if (value != new_value) {
-      save_chat_to_database_impl(c, chat_id, std::move(new_value));
-    } else if (c->log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), c->log_event_id);
-      c->log_event_id = 0;
-    }
-  }
-
-  if (c != nullptr && c->migrated_to_channel_id.is_valid() &&
-      !have_channel_force(c->migrated_to_channel_id, "on_load_chat_from_database")) {
-    LOG(ERROR) << "Can't find " << c->migrated_to_channel_id << " from " << chat_id;
-  }
-
-  set_promises(promises);
-}
-
-bool ChatManager::have_chat_force(ChatId chat_id, const char *source) {
-  return get_chat_force(chat_id, source) != nullptr;
-}
-
-ChatManager::Chat *ChatManager::get_chat_force(ChatId chat_id, const char *source) {
-  if (!chat_id.is_valid()) {
-    return nullptr;
-  }
-
-  Chat *c = get_chat(chat_id);
-  if (c != nullptr) {
-    if (c->migrated_to_channel_id.is_valid() && !have_channel_force(c->migrated_to_channel_id, source)) {
-      LOG(ERROR) << "Can't find " << c->migrated_to_channel_id << " from " << chat_id << " from " << source;
-    }
-
-    return c;
-  }
-  if (!G()->use_chat_info_database()) {
-    return nullptr;
-  }
-  if (loaded_from_database_chats_.count(chat_id)) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load " << chat_id << " from database from " << source;
-  on_load_chat_from_database(chat_id, G()->td_db()->get_sqlite_sync_pmc()->get(get_chat_database_key(chat_id)), true);
-  return get_chat(chat_id);
-}
-
-class ChatManager::ChannelLogEvent {
- public:
-  ChannelId channel_id;
-  const Channel *c_in = nullptr;
-  unique_ptr<Channel> c_out;
-
-  ChannelLogEvent() = default;
-
-  ChannelLogEvent(ChannelId channel_id, const Channel *c) : channel_id(channel_id), c_in(c) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(channel_id, storer);
-    td::store(*c_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(channel_id, parser);
-    td::parse(c_out, parser);
-  }
-};
-
-void ChatManager::save_channel(Channel *c, ChannelId channel_id, bool from_binlog) {
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-  CHECK(c != nullptr);
-  if (!c->is_saved) {
-    if (!from_binlog) {
-      auto log_event = ChannelLogEvent(channel_id, c);
-      auto storer = get_log_event_storer(log_event);
-      if (c->log_event_id == 0) {
-        c->log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::Channels, storer);
-      } else {
-        binlog_rewrite(G()->td_db()->get_binlog(), c->log_event_id, LogEvent::HandlerType::Channels, storer);
-      }
-    }
-
-    save_channel_to_database(c, channel_id);
-    return;
-  }
-}
-
-void ChatManager::on_binlog_channel_event(BinlogEvent &&event) {
-  if (!G()->use_chat_info_database()) {
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  ChannelLogEvent log_event;
-  if (log_event_parse(log_event, event.get_data()).is_error()) {
-    LOG(ERROR) << "Failed to load a supergroup from binlog";
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  auto channel_id = log_event.channel_id;
-  if (have_channel(channel_id) || !channel_id.is_valid()) {
-    LOG(ERROR) << "Skip adding already added " << channel_id;
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  LOG(INFO) << "Add " << channel_id << " from binlog";
-  channels_.set(channel_id, std::move(log_event.c_out));
-
-  Channel *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  c->log_event_id = event.id_;
-
-  update_channel(c, channel_id, true, false);
-}
-
-string ChatManager::get_channel_database_key(ChannelId channel_id) {
-  return PSTRING() << "ch" << channel_id.get();
-}
-
-string ChatManager::get_channel_database_value(const Channel *c) {
-  return log_event_store(*c).as_slice().str();
-}
-
-void ChatManager::save_channel_to_database(Channel *c, ChannelId channel_id) {
-  CHECK(c != nullptr);
-  if (c->is_being_saved) {
-    return;
-  }
-  if (loaded_from_database_channels_.count(channel_id)) {
-    save_channel_to_database_impl(c, channel_id, get_channel_database_value(c));
-    return;
-  }
-  if (load_channel_from_database_queries_.count(channel_id) != 0) {
-    return;
-  }
-
-  load_channel_from_database_impl(channel_id, Auto());
-}
-
-void ChatManager::save_channel_to_database_impl(Channel *c, ChannelId channel_id, string value) {
-  CHECK(c != nullptr);
-  CHECK(load_channel_from_database_queries_.count(channel_id) == 0);
-  CHECK(!c->is_being_saved);
-  c->is_being_saved = true;
-  c->is_saved = true;
-  LOG(INFO) << "Trying to save to database " << channel_id;
-  G()->td_db()->get_sqlite_pmc()->set(
-      get_channel_database_key(channel_id), std::move(value), PromiseCreator::lambda([channel_id](Result<> result) {
-        send_closure(G()->chat_manager(), &ChatManager::on_save_channel_to_database, channel_id, result.is_ok());
-      }));
-}
-
-void ChatManager::on_save_channel_to_database(ChannelId channel_id, bool success) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  Channel *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  CHECK(c->is_being_saved);
-  CHECK(load_channel_from_database_queries_.count(channel_id) == 0);
-  c->is_being_saved = false;
-
-  if (!success) {
-    LOG(ERROR) << "Failed to save " << channel_id << " to database";
-    c->is_saved = false;
-  } else {
-    LOG(INFO) << "Successfully saved " << channel_id << " to database";
-  }
-  if (c->is_saved) {
-    if (c->log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), c->log_event_id);
-      c->log_event_id = 0;
-    }
-  } else {
-    save_channel(c, channel_id, c->log_event_id != 0);
-  }
-}
-
-void ChatManager::load_channel_from_database(Channel *c, ChannelId channel_id, Promise<Unit> promise) {
-  if (loaded_from_database_channels_.count(channel_id)) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  CHECK(c == nullptr || !c->is_being_saved);
-  load_channel_from_database_impl(channel_id, std::move(promise));
-}
-
-void ChatManager::load_channel_from_database_impl(ChannelId channel_id, Promise<Unit> promise) {
-  LOG(INFO) << "Load " << channel_id << " from database";
-  auto &load_channel_queries = load_channel_from_database_queries_[channel_id];
-  load_channel_queries.push_back(std::move(promise));
-  if (load_channel_queries.size() == 1u) {
-    G()->td_db()->get_sqlite_pmc()->get(get_channel_database_key(channel_id),
-                                        PromiseCreator::lambda([channel_id](string value) {
-                                          send_closure(G()->chat_manager(), &ChatManager::on_load_channel_from_database,
-                                                       channel_id, std::move(value), false);
-                                        }));
-  }
-}
-
-void ChatManager::on_load_channel_from_database(ChannelId channel_id, string value, bool force) {
-  if (G()->close_flag() && !force) {
-    // the channel is in Binlog and will be saved after restart
-    return;
-  }
-
-  CHECK(channel_id.is_valid());
-  if (!loaded_from_database_channels_.insert(channel_id).second) {
-    return;
-  }
-
-  auto it = load_channel_from_database_queries_.find(channel_id);
-  vector<Promise<Unit>> promises;
-  if (it != load_channel_from_database_queries_.end()) {
-    promises = std::move(it->second);
-    CHECK(!promises.empty());
-    load_channel_from_database_queries_.erase(it);
-  }
-
-  LOG(INFO) << "Successfully loaded " << channel_id << " of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_channel_database_key(channel_id), Auto());
-  //  return;
-
-  Channel *c = get_channel(channel_id);
-  if (c == nullptr) {
-    if (!value.empty()) {
-      c = add_channel(channel_id, "on_load_channel_from_database");
-
-      if (log_event_parse(*c, value).is_error()) {
-        LOG(ERROR) << "Failed to load " << channel_id << " from database";
-        channels_.erase(channel_id);
-      } else {
-        c->is_saved = true;
-        update_channel(c, channel_id, true, true);
-      }
-    }
-  } else {
-    CHECK(!c->is_saved);  // channel can't be saved before load completes
-    CHECK(!c->is_being_saved);
-    bool is_new = false;
-    if (!value.empty()) {
-      Channel temp_c;
-      if (log_event_parse(temp_c, value).is_ok()) {
-        if (c->participant_count == 0 && temp_c.participant_count != 0) {
-          c->participant_count = temp_c.participant_count;
-          CHECK(c->is_update_supergroup_sent);
-          send_closure(G()->td(), &Td::send_update, get_update_supergroup_object(channel_id, c));
-        }
-
-        c->status.update_restrictions();
-        temp_c.status.update_restrictions();
-        if (temp_c.status != c->status) {
-          on_channel_status_changed(c, channel_id, temp_c.status, c->status);
-          CHECK(!c->is_being_saved);
-        }
-
-        if (temp_c.usernames != c->usernames) {
-          on_channel_usernames_changed(c, channel_id, temp_c.usernames, c->usernames);
-          CHECK(!c->is_being_saved);
-        }
-      } else {
-        is_new = true;
-      }
-    } else {
-      is_new = true;
-    }
-    auto new_value = get_channel_database_value(c);
-    if (value != new_value) {
-      save_channel_to_database_impl(c, channel_id, std::move(new_value));
-    } else if (c->log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), c->log_event_id);
-      c->log_event_id = 0;
-    }
-    if (is_new && !c->status.is_banned()) {
-      c->status.update_restrictions();
-      on_channel_status_changed(c, channel_id, DialogParticipantStatus::Banned(0), c->status);
-    }
-  }
-
-  set_promises(promises);
-}
-
-bool ChatManager::have_channel_force(ChannelId channel_id, const char *source) {
-  return get_channel_force(channel_id, source) != nullptr;
-}
-
-ChatManager::Channel *ChatManager::get_channel_force(ChannelId channel_id, const char *source) {
-  if (!channel_id.is_valid()) {
-    return nullptr;
-  }
-
-  Channel *c = get_channel(channel_id);
-  if (c != nullptr) {
-    return c;
-  }
-  if (!G()->use_chat_info_database()) {
-    return nullptr;
-  }
-  if (loaded_from_database_channels_.count(channel_id)) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load " << channel_id << " from database from " << source;
-  on_load_channel_from_database(channel_id,
-                                G()->td_db()->get_sqlite_sync_pmc()->get(get_channel_database_key(channel_id)), true);
-  return get_channel(channel_id);
-}
-
-void ChatManager::save_chat_full(const ChatFull *chat_full, ChatId chat_id) {
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-
-  LOG(INFO) << "Trying to save to database full " << chat_id;
-  CHECK(chat_full != nullptr);
-  G()->td_db()->get_sqlite_pmc()->set(get_chat_full_database_key(chat_id), get_chat_full_database_value(chat_full),
-                                      Auto());
-}
-
-string ChatManager::get_chat_full_database_key(ChatId chat_id) {
-  return PSTRING() << "grf" << chat_id.get();
-}
-
-string ChatManager::get_chat_full_database_value(const ChatFull *chat_full) {
-  return log_event_store(*chat_full).as_slice().str();
-}
-
-void ChatManager::on_load_chat_full_from_database(ChatId chat_id, string value) {
-  LOG(INFO) << "Successfully loaded full " << chat_id << " of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_chat_full_database_key(chat_id), Auto());
-  //  return;
-
-  if (get_chat_full(chat_id) != nullptr || value.empty()) {
-    return;
-  }
-
-  ChatFull *chat_full = add_chat_full(chat_id);
-  auto status = log_event_parse(*chat_full, value);
-  if (status.is_error()) {
-    // can't happen unless database is broken
-    LOG(ERROR) << "Repair broken full " << chat_id << ' ' << format::as_hex_dump<4>(Slice(value));
-
-    // just clean all known data about the chat and pretend that there was nothing in the database
-    chats_full_.erase(chat_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_chat_full_database_key(chat_id), Auto());
-    return;
-  }
-
-  Dependencies dependencies;
-  dependencies.add(chat_id);
-  dependencies.add(chat_full->creator_user_id);
-  for (auto &participant : chat_full->participants) {
-    dependencies.add_message_sender_dependencies(participant.dialog_id_);
-    dependencies.add(participant.inviter_user_id_);
-  }
-  dependencies.add(chat_full->invite_link.get_creator_user_id());
-  if (!dependencies.resolve_force(td_, "on_load_chat_full_from_database")) {
-    chats_full_.erase(chat_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_chat_full_database_key(chat_id), Auto());
-    return;
-  }
-
-  Chat *c = get_chat(chat_id);
-  CHECK(c != nullptr);
-
-  bool need_invite_link = c->is_active && c->status.can_manage_invite_links();
-  bool have_invite_link = chat_full->invite_link.is_valid();
-  if (need_invite_link != have_invite_link) {
-    if (need_invite_link) {
-      // ignore ChatFull without invite link
-      chats_full_.erase(chat_id);
-      return;
-    } else {
-      chat_full->invite_link = DialogInviteLink();
-    }
-  }
-
-  if (!is_same_dialog_photo(td_->file_manager_.get(), DialogId(chat_id), chat_full->photo, c->photo, false)) {
-    chat_full->photo = Photo();
-    if (c->photo.small_file_id.is_valid()) {
-      reload_chat_full(chat_id, Auto(), "on_load_chat_full_from_database");
-    }
-  }
-
-  auto photo = std::move(chat_full->photo);
-  chat_full->photo = Photo();
-  on_update_chat_full_photo(chat_full, chat_id, std::move(photo));
-
-  td_->group_call_manager_->on_update_dialog_about(DialogId(chat_id), chat_full->description, false);
-
-  chat_full->is_update_chat_full_sent = true;
-  update_chat_full(chat_full, chat_id, "on_load_chat_full_from_database", true);
-}
-
-ChatManager::ChatFull *ChatManager::get_chat_full_force(ChatId chat_id, const char *source) {
-  if (!have_chat_force(chat_id, source)) {
-    return nullptr;
-  }
-
-  ChatFull *chat_full = get_chat_full(chat_id);
-  if (chat_full != nullptr) {
-    return chat_full;
-  }
-  if (!G()->use_chat_info_database()) {
-    return nullptr;
-  }
-  if (!unavailable_chat_fulls_.insert(chat_id).second) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load full " << chat_id << " from database from " << source;
-  on_load_chat_full_from_database(chat_id,
-                                  G()->td_db()->get_sqlite_sync_pmc()->get(get_chat_full_database_key(chat_id)));
-  return get_chat_full(chat_id);
-}
-
-void ChatManager::save_channel_full(const ChannelFull *channel_full, ChannelId channel_id) {
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-
-  LOG(INFO) << "Trying to save to database full " << channel_id;
-  CHECK(channel_full != nullptr);
-  G()->td_db()->get_sqlite_pmc()->set(get_channel_full_database_key(channel_id),
-                                      get_channel_full_database_value(channel_full), Auto());
-}
-
-string ChatManager::get_channel_full_database_key(ChannelId channel_id) {
-  return PSTRING() << "chf" << channel_id.get();
-}
-
-string ChatManager::get_channel_full_database_value(const ChannelFull *channel_full) {
-  return log_event_store(*channel_full).as_slice().str();
-}
-
-void ChatManager::on_load_channel_full_from_database(ChannelId channel_id, string value, const char *source) {
-  LOG(INFO) << "Successfully loaded full " << channel_id << " of size " << value.size() << " from database from "
-            << source;
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_channel_full_database_key(channel_id), Auto());
-  //  return;
-
-  if (get_channel_full(channel_id, true, "on_load_channel_full_from_database") != nullptr || value.empty()) {
-    return;
-  }
-
-  ChannelFull *channel_full = add_channel_full(channel_id);
-  auto status = log_event_parse(*channel_full, value);
-  if (status.is_error()) {
-    // can't happen unless database is broken
-    LOG(ERROR) << "Repair broken full " << channel_id << ' ' << format::as_hex_dump<4>(Slice(value));
-
-    // just clean all known data about the channel and pretend that there was nothing in the database
-    channels_full_.erase(channel_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_channel_full_database_key(channel_id), Auto());
-    return;
-  }
-
-  Dependencies dependencies;
-  dependencies.add(channel_id);
-  // must not depend on the linked_dialog_id itself, because message database can be disabled
-  // the Dialog will be forcely created in update_channel_full
-  dependencies.add_dialog_dependencies(DialogId(channel_full->linked_channel_id));
-  dependencies.add(channel_full->migrated_from_chat_id);
-  for (auto bot_user_id : channel_full->bot_user_ids) {
-    dependencies.add(bot_user_id);
-  }
-  if (channel_full->bot_verification != nullptr) {
-    channel_full->bot_verification->add_dependencies(dependencies);
-  }
-  dependencies.add(channel_full->invite_link.get_creator_user_id());
-  if (!dependencies.resolve_force(td_, source)) {
-    channels_full_.erase(channel_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_channel_full_database_key(channel_id), Auto());
-    return;
-  }
-
-  Channel *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-
-  bool need_invite_link = c->status.can_manage_invite_links();
-  bool have_invite_link = channel_full->invite_link.is_valid();
-  if (need_invite_link != have_invite_link) {
-    if (need_invite_link) {
-      // ignore ChannelFull without invite link
-      channels_full_.erase(channel_id);
-      return;
-    } else {
-      channel_full->invite_link = DialogInviteLink();
-    }
-  }
-
-  if (!is_same_dialog_photo(td_->file_manager_.get(), DialogId(channel_id), channel_full->photo, c->photo, false)) {
-    channel_full->photo = Photo();
-    if (c->photo.small_file_id.is_valid()) {
-      channel_full->expires_at = 0.0;
-    }
-  }
-  auto photo = std::move(channel_full->photo);
-  channel_full->photo = Photo();
-  on_update_channel_full_photo(channel_full, channel_id, std::move(photo));
-
-  if (channel_full->participant_count < channel_full->administrator_count) {
-    channel_full->participant_count = channel_full->administrator_count;
-  }
-  if (c->participant_count != 0 && c->participant_count != channel_full->participant_count) {
-    channel_full->participant_count = c->participant_count;
-
-    if (channel_full->participant_count < channel_full->administrator_count) {
-      channel_full->participant_count = channel_full->administrator_count;
-      channel_full->expires_at = 0.0;
-
-      c->participant_count = channel_full->participant_count;
-      c->is_changed = true;
-    }
-  }
-  if (c->can_be_deleted != channel_full->can_be_deleted) {
-    c->can_be_deleted = channel_full->can_be_deleted;
-    c->need_save_to_database = true;
-  }
-
-  if (invalidated_channels_full_.erase(channel_id) > 0 ||
-      (!c->is_slow_mode_enabled && channel_full->slow_mode_delay != 0)) {
-    do_invalidate_channel_full(channel_full, channel_id, !c->is_slow_mode_enabled);
-  }
-
-  td_->group_call_manager_->on_update_dialog_about(DialogId(channel_id), channel_full->description, false);
-
-  send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_bots_updated, DialogId(channel_id),
-                     channel_full->bot_user_ids, true);
-
-  update_channel(c, channel_id);
-
-  channel_full->is_update_channel_full_sent = true;
-  update_channel_full(channel_full, channel_id, "on_load_channel_full_from_database", true);
-
-  if (channel_full->expires_at == 0.0) {
-    load_channel_full(channel_id, true, Auto(), "on_load_channel_full_from_database");
-  }
-}
-
-ChatManager::ChannelFull *ChatManager::get_channel_full_force(ChannelId channel_id, bool only_local,
-                                                              const char *source) {
-  if (!have_channel_force(channel_id, source)) {
-    return nullptr;
-  }
-
-  ChannelFull *channel_full = get_channel_full(channel_id, only_local, source);
-  if (channel_full != nullptr) {
-    return channel_full;
-  }
-  if (!G()->use_chat_info_database()) {
-    return nullptr;
-  }
-  if (!unavailable_channel_fulls_.insert(channel_id).second) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load full " << channel_id << " from database from " << source;
-  on_load_channel_full_from_database(
-      channel_id, G()->td_db()->get_sqlite_sync_pmc()->get(get_channel_full_database_key(channel_id)), source);
-  return get_channel_full(channel_id, only_local, source);
-}
-
-void ChatManager::update_chat(Chat *c, ChatId chat_id, bool from_binlog, bool from_database) {
-  CHECK(c != nullptr);
-
-  if (c->is_being_updated) {
-    LOG(ERROR) << "Detected recursive update of " << chat_id;
-  }
-  c->is_being_updated = true;
-  SCOPE_EXIT {
-    c->is_being_updated = false;
-  };
-
-  bool need_update_chat_full = false;
-  if (c->is_photo_changed) {
-    td_->messages_manager_->on_dialog_photo_updated(DialogId(chat_id));
-    c->is_photo_changed = false;
-
-    auto chat_full = get_chat_full(chat_id);  // must not load ChatFull
-    if (chat_full != nullptr &&
-        !is_same_dialog_photo(td_->file_manager_.get(), DialogId(chat_id), chat_full->photo, c->photo, false)) {
-      on_update_chat_full_photo(chat_full, chat_id, Photo());
-      if (chat_full->is_update_chat_full_sent) {
-        need_update_chat_full = true;
-      }
-      if (c->photo.small_file_id.is_valid()) {
-        reload_chat_full(chat_id, Auto(), "update_chat");
-      }
-    }
-  }
-  if (c->is_title_changed) {
-    td_->messages_manager_->on_dialog_title_updated(DialogId(chat_id));
-    c->is_title_changed = false;
-  }
-  if (c->is_default_permissions_changed) {
-    td_->messages_manager_->on_dialog_default_permissions_updated(DialogId(chat_id));
-    c->is_default_permissions_changed = false;
-  }
-  if (c->is_is_active_changed) {
-    update_dialogs_for_discussion(DialogId(chat_id), c->is_active && c->status.is_creator());
-    c->is_is_active_changed = false;
-    td_->messages_manager_->on_dialog_access_updated(DialogId(chat_id));
-  }
-  if (c->is_status_changed) {
-    if (!c->status.can_manage_invite_links()) {
-      td_->messages_manager_->drop_dialog_pending_join_requests(DialogId(chat_id));
-    }
-    if (!from_database) {
-      // if the chat is empty, this can add it to a chat list or remove it from a chat list
-      send_closure_later(G()->messages_manager(), &MessagesManager::try_update_dialog_pos, DialogId(chat_id));
-
-      if (c->is_update_basic_group_sent) {
-        // reload the chat to repair its status if it is changed back after receiving of outdated data
-        create_actor<SleepActor>(
-            "ReloadChatSleepActor", 1.0, PromiseCreator::lambda([actor_id = actor_id(this), chat_id](Unit) {
-              send_closure(actor_id, &ChatManager::reload_chat, chat_id, Promise<Unit>(), "ReloadChatSleepActor");
-            }))
-            .release();
-      }
-    }
-    td_->messages_manager_->on_dialog_access_updated(DialogId(chat_id));
-    c->is_status_changed = false;
-  }
-  if (c->is_noforwards_changed) {
-    td_->messages_manager_->on_dialog_has_protected_content_updated(DialogId(chat_id));
-    c->is_noforwards_changed = false;
-  }
-
-  if (need_update_chat_full) {
-    auto chat_full = get_chat_full(chat_id);
-    CHECK(chat_full != nullptr);
-    update_chat_full(chat_full, chat_id, "update_chat");
-  }
-
-  LOG(DEBUG) << "Update " << chat_id << ": need_save_to_database = " << c->need_save_to_database
-             << ", is_changed = " << c->is_changed;
-  c->need_save_to_database |= c->is_changed;
-  if (c->need_save_to_database) {
-    if (!from_database) {
-      c->is_saved = false;
-    }
-    c->need_save_to_database = false;
-  }
-  if (c->is_changed) {
-    send_closure(G()->td(), &Td::send_update, get_update_basic_group_object(chat_id, c));
-    c->is_changed = false;
-    c->is_update_basic_group_sent = true;
-  }
-
-  if (!from_database) {
-    save_chat(c, chat_id, from_binlog);
-  }
-
-  if (c->cache_version != Chat::CACHE_VERSION && !c->is_repaired && have_input_peer_chat(c, AccessRights::Read) &&
-      !G()->close_flag()) {
-    c->is_repaired = true;
-
-    LOG(INFO) << "Repairing cache of " << chat_id;
-    reload_chat(chat_id, Promise<Unit>(), "update_chat");
-  }
-}
-
-void ChatManager::update_channel(Channel *c, ChannelId channel_id, bool from_binlog, bool from_database) {
-  CHECK(c != nullptr);
-
-  if (c->is_being_updated) {
-    LOG(ERROR) << "Detected recursive update of " << channel_id;
-  }
-  c->is_being_updated = true;
-  SCOPE_EXIT {
-    c->is_being_updated = false;
-  };
-
-  bool need_update_channel_full = false;
-  if (c->is_photo_changed) {
-    td_->messages_manager_->on_dialog_photo_updated(DialogId(channel_id));
-    c->is_photo_changed = false;
-
-    auto channel_full = get_channel_full(channel_id, true, "update_channel");
-    if (channel_full != nullptr &&
-        !is_same_dialog_photo(td_->file_manager_.get(), DialogId(channel_id), channel_full->photo, c->photo, false)) {
-      on_update_channel_full_photo(channel_full, channel_id, Photo());
-      if (channel_full->is_update_channel_full_sent) {
-        need_update_channel_full = true;
-      }
-      if (c->photo.small_file_id.is_valid()) {
-        if (channel_full->expires_at > 0.0) {
-          channel_full->expires_at = 0.0;
-          channel_full->need_save_to_database = true;
-        }
-        send_get_channel_full_query(channel_full, channel_id, Auto(), "update_channel");
-      }
-    }
-  }
-  if (c->is_accent_color_changed) {
-    td_->messages_manager_->on_dialog_accent_colors_updated(DialogId(channel_id));
-    c->is_accent_color_changed = false;
-  }
-  if (c->is_title_changed) {
-    td_->messages_manager_->on_dialog_title_updated(DialogId(channel_id));
-    c->is_title_changed = false;
-  }
-  if (c->is_status_changed) {
-    c->status.update_restrictions();
-    auto until_date = c->status.get_until_date();
-    double left_time = 0;
-    if (until_date > 0) {
-      left_time = until_date - G()->server_time() + 2;
-      if (left_time <= 0) {
-        c->status.update_restrictions();
-        CHECK(c->status.get_until_date() == 0);
-      }
-    }
-    if (left_time > 0 && left_time < 366 * 86400) {
-      channel_unban_timeout_.set_timeout_in(channel_id.get(), left_time);
-    } else {
-      channel_unban_timeout_.cancel_timeout(channel_id.get());
-    }
-
-    if (c->is_megagroup) {
-      update_dialogs_for_discussion(DialogId(channel_id), c->status.is_administrator() && c->status.can_pin_messages());
-    }
-    if (!c->status.is_member()) {
-      remove_inactive_channel(channel_id);
-    }
-    if (!c->status.can_manage_invite_links()) {
-      td_->messages_manager_->drop_dialog_pending_join_requests(DialogId(channel_id));
-    }
-    if (!from_database && c->is_update_supergroup_sent) {
-      // reload the channel to repair its status if it is changed back after receiving of outdated data
-      create_actor<SleepActor>("ReloadChannelSleepActor", 1.0,
-                               PromiseCreator::lambda([actor_id = actor_id(this), channel_id](Unit) {
-                                 send_closure(actor_id, &ChatManager::reload_channel, channel_id, Promise<Unit>(),
-                                              "ReloadChannelSleepActor");
-                               }))
-          .release();
-    }
-    td_->messages_manager_->on_dialog_access_updated(DialogId(channel_id));
-    c->is_status_changed = false;
-  }
-  if (c->is_username_changed) {
-    if (c->status.is_creator()) {
-      update_created_public_channels(c, channel_id);
-    }
-    td_->messages_manager_->on_dialog_access_updated(DialogId(channel_id));
-    c->is_username_changed = false;
-  }
-  if (c->is_default_permissions_changed) {
-    td_->messages_manager_->on_dialog_default_permissions_updated(DialogId(channel_id));
-    if (c->default_permissions != RestrictedRights(false, false, false, false, false, false, false, false, false, false,
-                                                   false, false, false, false, false, false, false,
-                                                   ChannelType::Unknown)) {
-      td_->suggested_action_manager_->remove_dialog_suggested_action(
-          SuggestedAction{SuggestedAction::Type::ConvertToGigagroup, DialogId(channel_id)});
-    }
-    c->is_default_permissions_changed = false;
-  }
-  if (c->is_has_location_changed) {
-    if (c->status.is_creator()) {
-      update_created_public_channels(c, channel_id);
-    }
-    td_->messages_manager_->on_dialog_access_updated(DialogId(channel_id));
-    c->is_has_location_changed = false;
-  }
-  if (c->is_creator_changed) {
-    update_created_public_channels(c, channel_id);
-    c->is_creator_changed = false;
-  }
-  if (c->is_noforwards_changed) {
-    td_->messages_manager_->on_dialog_has_protected_content_updated(DialogId(channel_id));
-    c->is_noforwards_changed = false;
-  }
-  if (c->is_stories_hidden_changed) {
-    send_closure_later(td_->story_manager_actor_, &StoryManager::on_dialog_active_stories_order_updated,
-                       DialogId(channel_id), "update_channel stories_hidden");
-    c->is_stories_hidden_changed = false;
-  }
-  auto unix_time = G()->unix_time();
-  auto effective_emoji_status = EmojiStatus::get_effective_emoji_status(c->emoji_status, true, unix_time);
-  if (effective_emoji_status != c->last_sent_emoji_status) {
-    if (c->last_sent_emoji_status != nullptr) {
-      channel_emoji_status_timeout_.cancel_timeout(channel_id.get());
-    }
-    c->last_sent_emoji_status = std::move(effective_emoji_status);
-    if (c->last_sent_emoji_status != nullptr) {
-      auto until_date = c->last_sent_emoji_status->get_until_date();
-      auto left_time = until_date - unix_time;
-      if (left_time >= 0 && left_time < 30 * 86400) {
-        channel_emoji_status_timeout_.set_timeout_in(channel_id.get(), left_time);
-      }
-    }
-
-    td_->messages_manager_->on_dialog_emoji_status_updated(DialogId(channel_id));
-  }
-  c->is_emoji_status_changed = false;
-
-  if (!td_->auth_manager_->is_bot()) {
-    if (c->restriction_reasons.empty()) {
-      restricted_channel_ids_.erase(channel_id);
-    } else {
-      restricted_channel_ids_.insert(channel_id);
-    }
-  }
-
-  if (from_binlog || from_database) {
-    td_->dialog_manager_->on_dialog_usernames_received(DialogId(channel_id), c->usernames, true);
-  }
-
-  if (!is_channel_public(c) && !c->has_linked_channel) {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_update_dialog_default_send_message_as_dialog_id,
-                       DialogId(channel_id), DialogId(), false);
-  }
-
-  if (need_update_channel_full) {
-    auto channel_full = get_channel_full(channel_id, true, "update_channel");
-    CHECK(channel_full != nullptr);
-    update_channel_full(channel_full, channel_id, "update_channel");
-  }
-
-  LOG(DEBUG) << "Update " << channel_id << ": need_save_to_database = " << c->need_save_to_database
-             << ", is_changed = " << c->is_changed;
-  c->need_save_to_database |= c->is_changed;
-  if (c->need_save_to_database) {
-    if (!from_database) {
-      c->is_saved = false;
-    }
-    c->need_save_to_database = false;
-  }
-  if (c->is_changed) {
-    send_closure(G()->td(), &Td::send_update, get_update_supergroup_object(channel_id, c));
-    c->is_changed = false;
-    c->is_update_supergroup_sent = true;
-  }
-
-  if (!from_database) {
-    save_channel(c, channel_id, from_binlog);
-  }
-
-  bool have_read_access = have_input_peer_channel(c, channel_id, AccessRights::Read);
-  if (c->had_read_access && !have_read_access) {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_deleted, DialogId(channel_id),
-                       Promise<Unit>());
-  }
-  c->had_read_access = have_read_access;
-
-  if (c->cache_version != Channel::CACHE_VERSION && !c->is_repaired &&
-      have_input_peer_channel(c, channel_id, AccessRights::Read) && !G()->close_flag()) {
-    c->is_repaired = true;
-
-    LOG(INFO) << "Repairing cache of " << channel_id;
-    reload_channel(channel_id, Promise<Unit>(), "update_channel");
-  }
-}
-
-void ChatManager::update_chat_full(ChatFull *chat_full, ChatId chat_id, const char *source, bool from_database) {
-  CHECK(chat_full != nullptr);
-
-  if (chat_full->is_being_updated) {
-    LOG(ERROR) << "Detected recursive update of full " << chat_id << " from " << source;
-  }
-  chat_full->is_being_updated = true;
-  SCOPE_EXIT {
-    chat_full->is_being_updated = false;
-  };
-
-  unavailable_chat_fulls_.erase(chat_id);  // don't needed anymore
-
-  chat_full->need_send_update |= chat_full->is_changed;
-  chat_full->need_save_to_database |= chat_full->is_changed;
-  chat_full->is_changed = false;
-  if (chat_full->need_send_update || chat_full->need_save_to_database) {
-    LOG(INFO) << "Update full " << chat_id << " from " << source;
-  }
-  if (chat_full->need_send_update) {
-    vector<DialogAdministrator> administrators;
-    vector<UserId> bot_user_ids;
-    for (const auto &participant : chat_full->participants) {
-      if (participant.status_.is_administrator() && participant.dialog_id_.get_type() == DialogType::User) {
-        administrators.emplace_back(participant.dialog_id_.get_user_id(), participant.status_.get_rank(),
-                                    participant.status_.is_creator());
-      }
-      if (participant.dialog_id_.get_type() == DialogType::User) {
-        auto user_id = participant.dialog_id_.get_user_id();
-        if (td_->user_manager_->is_user_bot(user_id)) {
-          bot_user_ids.push_back(user_id);
-        }
-      }
-    }
-    td::remove_if(chat_full->bot_commands, [&bot_user_ids](const BotCommands &commands) {
-      return !td::contains(bot_user_ids, commands.get_bot_user_id());
-    });
-
-    td_->dialog_participant_manager_->on_update_dialog_administrators(DialogId(chat_id), std::move(administrators),
-                                                                      chat_full->version != -1, from_database);
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_bots_updated, DialogId(chat_id),
-                       std::move(bot_user_ids), from_database);
-
-    {
-      Chat *c = get_chat(chat_id);
-      CHECK(c == nullptr || c->is_update_basic_group_sent);
-    }
-    if (!chat_full->is_update_chat_full_sent) {
-      LOG(ERROR) << "Send partial updateBasicGroupFullInfo for " << chat_id << " from " << source;
-      chat_full->is_update_chat_full_sent = true;
-    }
-    send_closure(
-        G()->td(), &Td::send_update,
-        make_tl_object<td_api::updateBasicGroupFullInfo>(get_basic_group_id_object(chat_id, "update_chat_full"),
-                                                         get_basic_group_full_info_object(chat_id, chat_full)));
-    chat_full->need_send_update = false;
-  }
-  if (chat_full->need_save_to_database) {
-    if (!from_database) {
-      save_chat_full(chat_full, chat_id);
-    }
-    chat_full->need_save_to_database = false;
-  }
-}
-
-void ChatManager::update_channel_full(ChannelFull *channel_full, ChannelId channel_id, const char *source,
-                                      bool from_database) {
-  CHECK(channel_full != nullptr);
-
-  if (channel_full->is_being_updated) {
-    LOG(ERROR) << "Detected recursive update of full " << channel_id << " from " << source;
-  }
-  channel_full->is_being_updated = true;
-  SCOPE_EXIT {
-    channel_full->is_being_updated = false;
-  };
-
-  unavailable_channel_fulls_.erase(channel_id);  // don't needed anymore
-
-  CHECK(channel_full->participant_count >= channel_full->administrator_count);
-
-  if (channel_full->is_slow_mode_next_send_date_changed) {
-    auto now = G()->server_time();
-    if (channel_full->slow_mode_next_send_date > now + 3601) {
-      channel_full->slow_mode_next_send_date = static_cast<int32>(now) + 3601;
-    }
-    if (channel_full->slow_mode_next_send_date <= now) {
-      channel_full->slow_mode_next_send_date = 0;
-    }
-    if (channel_full->slow_mode_next_send_date == 0) {
-      slow_mode_delay_timeout_.cancel_timeout(channel_id.get());
-    } else {
-      slow_mode_delay_timeout_.set_timeout_in(channel_id.get(), channel_full->slow_mode_next_send_date - now + 0.002);
-    }
-    channel_full->is_slow_mode_next_send_date_changed = false;
-  }
-
-  if (channel_full->need_save_to_database) {
-    channel_full->is_changed |= td::remove_if(
-        channel_full->bot_commands, [bot_user_ids = &channel_full->bot_user_ids](const BotCommands &commands) {
-          return !td::contains(*bot_user_ids, commands.get_bot_user_id());
-        });
-  }
-
-  channel_full->need_send_update |= channel_full->is_changed;
-  channel_full->need_save_to_database |= channel_full->is_changed;
-  channel_full->is_changed = false;
-  if (channel_full->need_send_update || channel_full->need_save_to_database) {
-    LOG(INFO) << "Update full " << channel_id << " from " << source;
-  }
-  if (channel_full->need_send_update) {
-    if (channel_full->linked_channel_id.is_valid()) {
-      td_->dialog_manager_->force_create_dialog(DialogId(channel_full->linked_channel_id), "update_channel_full", true);
-    }
-
-    {
-      Channel *c = get_channel(channel_id);
-      CHECK(c == nullptr || c->is_update_supergroup_sent);
-    }
-    if (!channel_full->is_update_channel_full_sent) {
-      LOG(ERROR) << "Send partial updateSupergroupFullInfo for " << channel_id << " from " << source;
-      channel_full->is_update_channel_full_sent = true;
-    }
-    send_closure(
-        G()->td(), &Td::send_update,
-        make_tl_object<td_api::updateSupergroupFullInfo>(get_supergroup_id_object(channel_id, "update_channel_full"),
-                                                         get_supergroup_full_info_object(channel_id, channel_full)));
-    channel_full->need_send_update = false;
-  }
-  if (channel_full->need_save_to_database) {
-    if (!from_database) {
-      save_channel_full(channel_full, channel_id);
-    }
-    channel_full->need_save_to_database = false;
-  }
-}
-
-void ChatManager::on_get_chat(tl_object_ptr<telegram_api::Chat> &&chat, const char *source) {
-  LOG(DEBUG) << "Receive from " << source << ' ' << to_string(chat);
-  switch (chat->get_id()) {
-    case telegram_api::chatEmpty::ID:
-      on_get_chat_empty(static_cast<telegram_api::chatEmpty &>(*chat), source);
-      break;
-    case telegram_api::chat::ID:
-      on_get_chat(static_cast<telegram_api::chat &>(*chat), source);
-      break;
-    case telegram_api::chatForbidden::ID:
-      on_get_chat_forbidden(static_cast<telegram_api::chatForbidden &>(*chat), source);
-      break;
-    case telegram_api::channel::ID:
-      on_get_channel(static_cast<telegram_api::channel &>(*chat), source);
-      break;
-    case telegram_api::channelForbidden::ID:
-      on_get_channel_forbidden(static_cast<telegram_api::channelForbidden &>(*chat), source);
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void ChatManager::on_get_chats(vector<tl_object_ptr<telegram_api::Chat>> &&chats, const char *source) {
-  for (auto &chat : chats) {
-    auto constuctor_id = chat->get_id();
-    if (constuctor_id == telegram_api::channel::ID || constuctor_id == telegram_api::channelForbidden::ID) {
-      // apply info about megagroups before corresponding chats
-      on_get_chat(std::move(chat), source);
-      chat = nullptr;
-    }
-  }
-  for (auto &chat : chats) {
-    if (chat != nullptr) {
-      on_get_chat(std::move(chat), source);
-      chat = nullptr;
-    }
-  }
-}
-
-void ChatManager::on_get_chat_full(tl_object_ptr<telegram_api::ChatFull> &&chat_full_ptr, Promise<Unit> &&promise) {
-  LOG(INFO) << "Receive " << to_string(chat_full_ptr);
-  if (chat_full_ptr->get_id() == telegram_api::chatFull::ID) {
-    auto chat = move_tl_object_as<telegram_api::chatFull>(chat_full_ptr);
-    ChatId chat_id(chat->id_);
-    Chat *c = get_chat(chat_id);
-    if (c == nullptr) {
-      LOG(ERROR) << "Can't find " << chat_id;
-      return promise.set_value(Unit());
-    }
-    if (c->version >= c->pinned_message_version) {
-      auto pinned_message_id = MessageId(ServerMessageId(chat->pinned_msg_id_));
-      LOG(INFO) << "Receive pinned " << pinned_message_id << " in " << chat_id << " with version " << c->version
-                << ". Current version is " << c->pinned_message_version;
-      td_->messages_manager_->on_update_dialog_last_pinned_message_id(DialogId(chat_id), pinned_message_id);
-      if (c->version > c->pinned_message_version) {
-        c->pinned_message_version = c->version;
-        c->need_save_to_database = true;
-        update_chat(c, chat_id);
-      }
-    }
-
-    td_->messages_manager_->on_update_dialog_folder_id(DialogId(chat_id), FolderId(chat->folder_id_));
-
-    td_->messages_manager_->on_update_dialog_has_scheduled_server_messages(DialogId(chat_id), chat->has_scheduled_);
-
-    {
-      InputGroupCallId input_group_call_id;
-      if (chat->call_ != nullptr) {
-        input_group_call_id = InputGroupCallId(chat->call_);
-      }
-      td_->messages_manager_->on_update_dialog_group_call_id(DialogId(chat_id), input_group_call_id);
-    }
-
-    {
-      DialogId default_join_group_call_as_dialog_id;
-      if (chat->groupcall_default_join_as_ != nullptr) {
-        default_join_group_call_as_dialog_id = DialogId(chat->groupcall_default_join_as_);
-      }
-      // use send closure later to not create synchronously default_join_group_call_as_dialog_id
-      send_closure_later(G()->messages_manager(),
-                         &MessagesManager::on_update_dialog_default_join_group_call_as_dialog_id, DialogId(chat_id),
-                         default_join_group_call_as_dialog_id, false);
-    }
-
-    td_->messages_manager_->on_update_dialog_message_ttl(DialogId(chat_id), MessageTtl(chat->ttl_period_));
-
-    td_->messages_manager_->on_update_dialog_is_translatable(DialogId(chat_id), !chat->translations_disabled_);
-
-    ChatFull *chat_full = add_chat_full(chat_id);
-    on_update_chat_full_invite_link(chat_full, std::move(chat->exported_invite_));
-    auto photo = get_photo(td_, std::move(chat->chat_photo_), DialogId(chat_id));
-    // on_update_chat_photo should be a no-op if server sent consistent data
-    on_update_chat_photo(c, chat_id, as_dialog_photo(td_->file_manager_.get(), DialogId(chat_id), 0, photo, false),
-                         false);
-    on_update_chat_full_photo(chat_full, chat_id, std::move(photo));
-    if (chat_full->description != chat->about_) {
-      chat_full->description = std::move(chat->about_);
-      chat_full->is_changed = true;
-      td_->group_call_manager_->on_update_dialog_about(DialogId(chat_id), chat_full->description, true);
-    }
-    if (chat_full->can_set_username != chat->can_set_username_) {
-      chat_full->can_set_username = chat->can_set_username_;
-      chat_full->need_save_to_database = true;
-    }
-
-    on_get_chat_participants(std::move(chat->participants_), false);
-    td_->messages_manager_->on_update_dialog_notify_settings(DialogId(chat_id), std::move(chat->notify_settings_),
-                                                             "on_get_chat_full");
-
-    td_->messages_manager_->on_update_dialog_available_reactions(
-        DialogId(chat_id), std::move(chat->available_reactions_), chat->reactions_limit_, false);
-
-    td_->messages_manager_->on_update_dialog_theme_name(DialogId(chat_id), std::move(chat->theme_emoticon_));
-
-    td_->messages_manager_->on_update_dialog_pending_join_requests(DialogId(chat_id), chat->requests_pending_,
-                                                                   std::move(chat->recent_requesters_));
-
-    auto bot_commands = td_->user_manager_->get_bot_commands(std::move(chat->bot_info_), &chat_full->participants);
-    if (chat_full->bot_commands != bot_commands) {
-      chat_full->bot_commands = std::move(bot_commands);
-      chat_full->is_changed = true;
-    }
-
-    if (c->is_changed) {
-      LOG(ERROR) << "Receive inconsistent chatPhoto and chatPhotoInfo for " << chat_id;
-      update_chat(c, chat_id);
-    }
-
-    chat_full->is_update_chat_full_sent = true;
-    update_chat_full(chat_full, chat_id, "on_get_chat_full");
-  } else {
-    CHECK(chat_full_ptr->get_id() == telegram_api::channelFull::ID);
-    auto channel = move_tl_object_as<telegram_api::channelFull>(chat_full_ptr);
-    ChannelId channel_id(channel->id_);
-    auto c = get_channel(channel_id);
-    if (c == nullptr) {
-      LOG(ERROR) << "Can't find " << channel_id;
-      return promise.set_value(Unit());
-    }
-
-    invalidated_channels_full_.erase(channel_id);
-
-    if (!G()->close_flag()) {
-      auto channel_full = get_channel_full(channel_id, true, "on_get_channel_full");
-      if (channel_full != nullptr) {
-        if (channel_full->repair_request_version != 0 &&
-            channel_full->repair_request_version < channel_full->speculative_version) {
-          LOG(INFO) << "Receive ChannelFull with request version " << channel_full->repair_request_version
-                    << ", but current speculative version is " << channel_full->speculative_version;
-
-          channel_full->repair_request_version = channel_full->speculative_version;
-
-          auto input_channel = get_input_channel(channel_id);
-          CHECK(input_channel != nullptr);
-          td_->create_handler<GetFullChannelQuery>(std::move(promise))->send(channel_id, std::move(input_channel));
-          return;
-        }
-        channel_full->repair_request_version = 0;
-      }
-    }
-
-    td_->messages_manager_->on_update_dialog_notify_settings(DialogId(channel_id), std::move(channel->notify_settings_),
-                                                             "on_get_channel_full");
-
-    td_->messages_manager_->on_update_dialog_background(DialogId(channel_id), std::move(channel->wallpaper_));
-
-    td_->messages_manager_->on_update_dialog_available_reactions(
-        DialogId(channel_id), std::move(channel->available_reactions_), channel->reactions_limit_,
-        channel->paid_reactions_available_);
-
-    td_->messages_manager_->on_update_dialog_theme_name(DialogId(channel_id), std::move(channel->theme_emoticon_));
-
-    td_->messages_manager_->on_update_dialog_pending_join_requests(DialogId(channel_id), channel->requests_pending_,
-                                                                   std::move(channel->recent_requesters_));
-
-    td_->messages_manager_->on_update_dialog_message_ttl(DialogId(channel_id), MessageTtl(channel->ttl_period_));
-
-    td_->messages_manager_->on_update_dialog_view_as_messages(DialogId(channel_id), channel->view_forum_as_messages_);
-
-    td_->messages_manager_->on_update_dialog_is_translatable(DialogId(channel_id), !channel->translations_disabled_);
-
-    send_closure_later(td_->story_manager_actor_, &StoryManager::on_get_dialog_stories, DialogId(channel_id),
-                       std::move(channel->stories_), Promise<Unit>());
-
-    ChannelFull *channel_full = add_channel_full(channel_id);
-
-    bool have_participant_count = (channel->flags_ & telegram_api::channelFull::PARTICIPANTS_COUNT_MASK) != 0;
-    auto participant_count = have_participant_count ? channel->participants_count_ : channel_full->participant_count;
-    auto administrator_count = 0;
-    if ((channel->flags_ & telegram_api::channelFull::ADMINS_COUNT_MASK) != 0) {
-      administrator_count = channel->admins_count_;
-    } else if (c->is_megagroup || c->status.is_administrator()) {
-      // in megagroups and administered channels don't drop known number of administrators
-      administrator_count = channel_full->administrator_count;
-    }
-    if (participant_count < administrator_count) {
-      participant_count = administrator_count;
-    }
-    auto restricted_count = channel->banned_count_;
-    auto banned_count = channel->kicked_count_;
-    auto can_get_participants = channel->can_view_participants_;
-    auto has_hidden_participants = channel->participants_hidden_;
-    auto can_set_username = channel->can_set_username_;
-    auto can_set_sticker_set = channel->can_set_stickers_;
-    auto can_set_location = channel->can_set_location_;
-    auto is_all_history_available = !channel->hidden_prehistory_;
-    auto can_have_sponsored_messages = !channel->restricted_sponsored_;
-    auto has_aggressive_anti_spam_enabled = channel->antispam_;
-    auto can_view_statistics = channel->can_view_stats_;
-    auto can_view_revenue = channel->can_view_revenue_;
-    auto has_pinned_stories = channel->stories_pinned_available_;
-    auto boost_count = channel->boosts_applied_;
-    auto unrestrict_boost_count = channel->boosts_unrestrict_;
-    auto has_paid_media_allowed = channel->paid_media_allowed_;
-    auto can_view_star_revenue = channel->can_view_stars_revenue_;
-    auto bot_verification = BotVerification::get_bot_verification(std::move(channel->bot_verification_));
-    auto gift_count = channel->stargifts_count_;
-    auto has_stargifts_available = channel->stargifts_available_;
-    auto has_paid_messages_available = channel->paid_messages_available_;
-    StickerSetId sticker_set_id;
-    if (channel->stickerset_ != nullptr) {
-      sticker_set_id =
-          td_->stickers_manager_->on_get_sticker_set(std::move(channel->stickerset_), true, "on_get_channel_full");
-    }
-    StickerSetId emoji_sticker_set_id;
-    if (channel->emojiset_ != nullptr) {
-      emoji_sticker_set_id =
-          td_->stickers_manager_->on_get_sticker_set(std::move(channel->emojiset_), true, "on_get_channel_full");
-    }
-    DcId stats_dc_id;
-    if ((channel->flags_ & telegram_api::channelFull::STATS_DC_MASK) != 0) {
-      stats_dc_id = DcId::create(channel->stats_dc_);
-    }
-    if (!stats_dc_id.is_exact() && can_view_statistics) {
-      LOG(ERROR) << "Receive can_view_statistics == true, but invalid statistics DC ID in " << channel_id;
-      can_view_statistics = false;
-    }
-
-    channel_full->repair_request_version = 0;
-    channel_full->expires_at = Time::now() + CHANNEL_FULL_EXPIRE_TIME;
-    if (channel_full->participant_count != participant_count ||
-        channel_full->administrator_count != administrator_count ||
-        channel_full->restricted_count != restricted_count || channel_full->banned_count != banned_count ||
-        channel_full->can_get_participants != can_get_participants ||
-        channel_full->can_set_sticker_set != can_set_sticker_set ||
-        channel_full->can_set_location != can_set_location ||
-        channel_full->can_view_statistics != can_view_statistics || channel_full->stats_dc_id != stats_dc_id ||
-        channel_full->sticker_set_id != sticker_set_id || channel_full->emoji_sticker_set_id != emoji_sticker_set_id ||
-        channel_full->is_all_history_available != is_all_history_available ||
-        channel_full->can_have_sponsored_messages != can_have_sponsored_messages ||
-        channel_full->has_aggressive_anti_spam_enabled != has_aggressive_anti_spam_enabled ||
-        channel_full->has_hidden_participants != has_hidden_participants ||
-        channel_full->has_pinned_stories != has_pinned_stories || channel_full->boost_count != boost_count ||
-        channel_full->unrestrict_boost_count != unrestrict_boost_count || channel_full->gift_count != gift_count ||
-        channel_full->can_view_revenue != can_view_revenue ||
-        channel_full->has_paid_media_allowed != has_paid_media_allowed ||
-        channel_full->can_view_star_revenue != can_view_star_revenue ||
-        channel_full->bot_verification != bot_verification ||
-        channel_full->has_stargifts_available != has_stargifts_available ||
-        channel_full->has_paid_messages_available != has_paid_messages_available) {
-      channel_full->participant_count = participant_count;
-      channel_full->administrator_count = administrator_count;
-      channel_full->restricted_count = restricted_count;
-      channel_full->banned_count = banned_count;
-      channel_full->can_get_participants = can_get_participants;
-      channel_full->has_hidden_participants = has_hidden_participants;
-      channel_full->can_set_sticker_set = can_set_sticker_set;
-      channel_full->can_set_location = can_set_location;
-      channel_full->can_view_statistics = can_view_statistics;
-      channel_full->stats_dc_id = stats_dc_id;
-      channel_full->sticker_set_id = sticker_set_id;
-      channel_full->emoji_sticker_set_id = emoji_sticker_set_id;
-      channel_full->is_all_history_available = is_all_history_available;
-      channel_full->can_have_sponsored_messages = can_have_sponsored_messages;
-      channel_full->has_aggressive_anti_spam_enabled = has_aggressive_anti_spam_enabled;
-      channel_full->has_pinned_stories = has_pinned_stories;
-      channel_full->boost_count = boost_count;
-      channel_full->unrestrict_boost_count = unrestrict_boost_count;
-      channel_full->gift_count = gift_count;
-      channel_full->can_view_revenue = can_view_revenue;
-      channel_full->has_paid_media_allowed = has_paid_media_allowed;
-      channel_full->can_view_star_revenue = can_view_star_revenue;
-      channel_full->bot_verification = std::move(bot_verification);
-      channel_full->has_stargifts_available = has_stargifts_available;
-      channel_full->has_paid_messages_available = has_paid_messages_available;
-
-      channel_full->is_changed = true;
-    }
-    if (channel_full->description != channel->about_) {
-      channel_full->description = std::move(channel->about_);
-      channel_full->is_changed = true;
-      td_->group_call_manager_->on_update_dialog_about(DialogId(channel_id), channel_full->description, true);
-    }
-
-    if (have_participant_count && c->participant_count != participant_count) {
-      c->participant_count = participant_count;
-      c->is_changed = true;
-      update_channel(c, channel_id);
-    }
-    if (!channel_full->is_can_view_statistics_inited) {
-      channel_full->is_can_view_statistics_inited = true;
-      channel_full->need_save_to_database = true;
-    }
-    if (channel_full->can_set_username != can_set_username) {
-      channel_full->can_set_username = can_set_username;
-      channel_full->need_save_to_database = true;
-    }
-
-    auto photo = get_photo(td_, std::move(channel->chat_photo_), DialogId(channel_id));
-    // on_update_channel_photo should be a no-op if server sent consistent data
-    on_update_channel_photo(
-        c, channel_id, as_dialog_photo(td_->file_manager_.get(), DialogId(channel_id), c->access_hash, photo, false),
-        false);
-    on_update_channel_full_photo(channel_full, channel_id, std::move(photo));
-
-    auto read_outbox_max_message_id = MessageId(ServerMessageId(channel->read_outbox_max_id_));
-    if (read_outbox_max_message_id.is_valid()) {
-      td_->messages_manager_->read_history_outbox(DialogId(channel_id), read_outbox_max_message_id);
-    }
-    if ((channel->flags_ & telegram_api::channelFull::AVAILABLE_MIN_ID_MASK) != 0) {
-      td_->messages_manager_->on_update_channel_max_unavailable_message_id(
-          channel_id, MessageId(ServerMessageId(channel->available_min_id_)), "ChannelFull");
-    }
-    td_->messages_manager_->on_read_channel_inbox(channel_id, MessageId(ServerMessageId(channel->read_inbox_max_id_)),
-                                                  channel->unread_count_, channel->pts_, "ChannelFull");
-
-    on_update_channel_full_invite_link(channel_full, std::move(channel->exported_invite_));
-
-    td_->messages_manager_->on_update_dialog_is_blocked(DialogId(channel_id), channel->blocked_, false);
-
-    td_->messages_manager_->on_update_dialog_last_pinned_message_id(
-        DialogId(channel_id), MessageId(ServerMessageId(channel->pinned_msg_id_)));
-
-    td_->messages_manager_->on_update_dialog_folder_id(DialogId(channel_id), FolderId(channel->folder_id_));
-
-    td_->messages_manager_->on_update_dialog_has_scheduled_server_messages(DialogId(channel_id),
-                                                                           channel->has_scheduled_);
-    {
-      InputGroupCallId input_group_call_id;
-      if (channel->call_ != nullptr) {
-        input_group_call_id = InputGroupCallId(channel->call_);
-      }
-      td_->messages_manager_->on_update_dialog_group_call_id(DialogId(channel_id), input_group_call_id);
-    }
-    {
-      DialogId default_join_group_call_as_dialog_id;
-      if (channel->groupcall_default_join_as_ != nullptr) {
-        default_join_group_call_as_dialog_id = DialogId(channel->groupcall_default_join_as_);
-      }
-      // use send closure later to not create synchronously default_join_group_call_as_dialog_id
-      send_closure_later(G()->messages_manager(),
-                         &MessagesManager::on_update_dialog_default_join_group_call_as_dialog_id, DialogId(channel_id),
-                         default_join_group_call_as_dialog_id, false);
-    }
-    {
-      DialogId default_send_message_as_dialog_id;
-      if (channel->default_send_as_ != nullptr) {
-        default_send_message_as_dialog_id = DialogId(channel->default_send_as_);
-      }
-      // use send closure later to not create synchronously default_send_message_as_dialog_id
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_update_dialog_default_send_message_as_dialog_id,
-                         DialogId(channel_id), default_send_message_as_dialog_id, false);
-    }
-
-    if (participant_count >= 190 || !can_get_participants || has_hidden_participants) {
-      td_->dialog_participant_manager_->on_update_dialog_online_member_count(DialogId(channel_id),
-                                                                             channel->online_count_, true);
-    }
-
-    vector<UserId> bot_user_ids;
-    for (const auto &bot_info : channel->bot_info_) {
-      UserId user_id(bot_info->user_id_);
-      if (!td_->user_manager_->is_user_bot(user_id)) {
-        continue;
-      }
-
-      bot_user_ids.push_back(user_id);
-    }
-    on_update_channel_full_bot_user_ids(channel_full, channel_id, std::move(bot_user_ids));
-
-    auto bot_commands = td_->user_manager_->get_bot_commands(std::move(channel->bot_info_), nullptr);
-    if (channel_full->bot_commands != bot_commands) {
-      channel_full->bot_commands = std::move(bot_commands);
-      channel_full->is_changed = true;
-    }
-
-    ChannelId linked_channel_id;
-    if ((channel->flags_ & telegram_api::channelFull::LINKED_CHAT_ID_MASK) != 0) {
-      linked_channel_id = ChannelId(channel->linked_chat_id_);
-      auto linked_channel = get_channel_force(linked_channel_id, "ChannelFull");
-      if (linked_channel == nullptr || c->is_megagroup == linked_channel->is_megagroup ||
-          channel_id == linked_channel_id) {
-        LOG(ERROR) << "Failed to add a link between " << channel_id << " and " << linked_channel_id;
-        linked_channel_id = ChannelId();
-      }
-    }
-    on_update_channel_full_linked_channel_id(channel_full, channel_id, linked_channel_id);
-
-    on_update_channel_full_location(channel_full, channel_id, DialogLocation(td_, std::move(channel->location_)));
-
-    if (c->is_megagroup) {
-      on_update_channel_full_slow_mode_delay(channel_full, channel_id, channel->slowmode_seconds_,
-                                             channel->slowmode_next_send_date_);
-    }
-    if (channel_full->can_be_deleted != channel->can_delete_channel_) {
-      channel_full->can_be_deleted = channel->can_delete_channel_;
-      channel_full->need_save_to_database = true;
-    }
-    if (c->can_be_deleted != channel_full->can_be_deleted) {
-      c->can_be_deleted = channel_full->can_be_deleted;
-      c->need_save_to_database = true;
-    }
-
-    auto migrated_from_chat_id = ChatId(channel->migrated_from_chat_id_);
-    auto migrated_from_max_message_id = MessageId(ServerMessageId(channel->migrated_from_max_id_));
-    if (channel_full->migrated_from_chat_id != migrated_from_chat_id ||
-        channel_full->migrated_from_max_message_id != migrated_from_max_message_id) {
-      channel_full->migrated_from_chat_id = migrated_from_chat_id;
-      channel_full->migrated_from_max_message_id = migrated_from_max_message_id;
-      channel_full->is_changed = true;
-    }
-
-    if (c->is_changed) {
-      LOG(ERROR) << "Receive inconsistent chatPhoto and chatPhotoInfo for " << channel_id;
-      update_channel(c, channel_id);
-    }
-
-    channel_full->is_update_channel_full_sent = true;
-    update_channel_full(channel_full, channel_id, "on_get_channel_full");
-
-    if (linked_channel_id.is_valid()) {
-      auto linked_channel_full = get_channel_full_force(linked_channel_id, true, "on_get_channel_full");
-      on_update_channel_full_linked_channel_id(linked_channel_full, linked_channel_id, channel_id);
-      if (linked_channel_full != nullptr) {
-        update_channel_full(linked_channel_full, linked_channel_id, "on_get_channel_full 2");
-      }
-    }
-
-    td_->suggested_action_manager_->set_dialog_pending_suggestions(DialogId(channel_id),
-                                                                   std::move(channel->pending_suggestions_));
-  }
-  promise.set_value(Unit());
-}
-
-void ChatManager::on_get_chat_full_failed(ChatId chat_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Failed to get full " << chat_id;
-}
-
-void ChatManager::on_get_channel_full_failed(ChannelId channel_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Failed to get full " << channel_id;
-  auto channel_full = get_channel_full(channel_id, true, "on_get_channel_full");
-  if (channel_full != nullptr) {
-    channel_full->repair_request_version = 0;
-  }
-}
-
-void ChatManager::on_ignored_restriction_reasons_changed() {
-  restricted_channel_ids_.foreach([&](const ChannelId &channel_id) {
-    send_closure(G()->td(), &Td::send_update, get_update_supergroup_object(channel_id, get_channel(channel_id)));
-  });
-}
-
-void ChatManager::update_chat_online_member_count(ChatId chat_id, bool is_from_server) {
-  auto chat_full = get_chat_full(chat_id);
-  if (chat_full != nullptr) {
-    update_chat_online_member_count(chat_full, chat_id, false);
-  }
-}
-
-void ChatManager::update_chat_online_member_count(const ChatFull *chat_full, ChatId chat_id, bool is_from_server) {
-  td_->dialog_participant_manager_->update_dialog_online_member_count(chat_full->participants, DialogId(chat_id),
-                                                                      is_from_server);
-}
-
-void ChatManager::on_get_chat_participants(tl_object_ptr<telegram_api::ChatParticipants> &&participants_ptr,
-                                           bool from_update) {
-  switch (participants_ptr->get_id()) {
-    case telegram_api::chatParticipantsForbidden::ID: {
-      auto participants = move_tl_object_as<telegram_api::chatParticipantsForbidden>(participants_ptr);
-      ChatId chat_id(participants->chat_id_);
-      if (!chat_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << chat_id;
-        return;
-      }
-
-      if (!have_chat_force(chat_id, "on_get_chat_participants")) {
-        LOG(ERROR) << chat_id << " not found";
-        return;
-      }
-
-      if (from_update) {
-        drop_chat_full(chat_id);
-      }
-      break;
-    }
-    case telegram_api::chatParticipants::ID: {
-      auto participants = move_tl_object_as<telegram_api::chatParticipants>(participants_ptr);
-      ChatId chat_id(participants->chat_id_);
-      if (!chat_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << chat_id;
-        return;
-      }
-
-      const Chat *c = get_chat_force(chat_id, "chatParticipants");
-      if (c == nullptr) {
-        LOG(ERROR) << chat_id << " not found";
-        return;
-      }
-
-      ChatFull *chat_full = get_chat_full_force(chat_id, "telegram_api::chatParticipants");
-      if (chat_full == nullptr) {
-        LOG(INFO) << "Ignore update of members for unknown full " << chat_id;
-        return;
-      }
-
-      UserId new_creator_user_id;
-      vector<DialogParticipant> new_participants;
-      new_participants.reserve(participants->participants_.size());
-
-      for (auto &participant_ptr : participants->participants_) {
-        DialogParticipant dialog_participant(std::move(participant_ptr), c->date, c->status.is_creator());
-        if (!dialog_participant.is_valid()) {
-          LOG(ERROR) << "Receive invalid " << dialog_participant;
-          continue;
-        }
-
-        LOG_IF(ERROR, !td_->dialog_manager_->have_dialog_info(dialog_participant.dialog_id_))
-            << "Have no information about " << dialog_participant.dialog_id_ << " as a member of " << chat_id;
-        LOG_IF(ERROR, !td_->user_manager_->have_user(dialog_participant.inviter_user_id_))
-            << "Have no information about " << dialog_participant.inviter_user_id_ << " as a member of " << chat_id;
-        if (dialog_participant.joined_date_ < c->date) {
-          LOG_IF(ERROR, dialog_participant.joined_date_ < c->date - 30 && c->date >= 1486000000)
-              << "Wrong join date = " << dialog_participant.joined_date_ << " for " << dialog_participant.dialog_id_
-              << ", " << chat_id << " was created at " << c->date;
-          dialog_participant.joined_date_ = c->date;
-        }
-        if (dialog_participant.status_.is_creator() && dialog_participant.dialog_id_.get_type() == DialogType::User) {
-          new_creator_user_id = dialog_participant.dialog_id_.get_user_id();
-        }
-        new_participants.push_back(std::move(dialog_participant));
-      }
-
-      if (chat_full->creator_user_id != new_creator_user_id) {
-        if (new_creator_user_id.is_valid() && chat_full->creator_user_id.is_valid()) {
-          LOG(ERROR) << "Group creator has changed from " << chat_full->creator_user_id << " to " << new_creator_user_id
-                     << " in " << chat_id;
-        }
-        chat_full->creator_user_id = new_creator_user_id;
-        chat_full->is_changed = true;
-      }
-
-      on_update_chat_full_participants(chat_full, chat_id, std::move(new_participants), participants->version_,
-                                       from_update);
-      if (from_update) {
-        update_chat_full(chat_full, chat_id, "on_get_chat_participants");
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-const DialogParticipant *ChatManager::get_chat_participant(ChatId chat_id, UserId user_id) const {
-  auto chat_full = get_chat_full(chat_id);
-  if (chat_full == nullptr) {
-    return nullptr;
-  }
-  return get_chat_full_participant(chat_full, DialogId(user_id));
-}
-
-const DialogParticipant *ChatManager::get_chat_full_participant(const ChatFull *chat_full, DialogId dialog_id) {
-  for (const auto &dialog_participant : chat_full->participants) {
-    if (dialog_participant.dialog_id_ == dialog_id) {
-      return &dialog_participant;
-    }
-  }
-  return nullptr;
-}
-
-const vector<DialogParticipant> *ChatManager::get_chat_participants(ChatId chat_id) const {
-  auto chat_full = get_chat_full(chat_id);
-  if (chat_full == nullptr) {
-    return nullptr;
-  }
-  return &chat_full->participants;
-}
-
-tl_object_ptr<td_api::chatMember> ChatManager::get_chat_member_object(const DialogParticipant &dialog_participant,
-                                                                      const char *source) const {
-  return td_api::make_object<td_api::chatMember>(
-      get_message_sender_object(td_, dialog_participant.dialog_id_, source),
-      td_->user_manager_->get_user_id_object(dialog_participant.inviter_user_id_, "chatMember.inviter_user_id"),
-      dialog_participant.joined_date_, dialog_participant.status_.get_chat_member_status_object());
-}
-
-bool ChatManager::on_get_channel_error(ChannelId channel_id, const Status &status, const char *source) {
-  LOG(INFO) << "Receive " << status << " in " << channel_id << " from " << source;
-  if (status.message() == CSlice("BOT_METHOD_INVALID")) {
-    LOG(ERROR) << "Receive BOT_METHOD_INVALID from " << source;
-    return true;
-  }
-  if (G()->is_expected_error(status)) {
-    return true;
-  }
-  if (status.message() == "CHANNEL_PRIVATE" || status.message() == "CHANNEL_PUBLIC_GROUP_NA") {
-    if (!channel_id.is_valid()) {
-      LOG(ERROR) << "Receive " << status.message() << " in invalid " << channel_id << " from " << source;
-      return false;
-    }
-
-    auto c = get_channel(channel_id);
-    if (c == nullptr) {
-      if (Slice(source) == Slice("GetChannelDifferenceQuery") || Slice(source) == Slice("GetChannelsQuery")) {
-        // get channel difference after restart
-        // get channel from server by its identifier
-        return true;
-      }
-      LOG(ERROR) << "Receive " << status.message() << " in not found " << channel_id << " from " << source;
-      return false;
-    }
-
-    auto debug_channel_object = oneline(to_string(get_supergroup_object(channel_id, c)));
-    if (c->status.is_member()) {
-      LOG(INFO) << "Emulate leaving " << channel_id;
-      // TODO we also may try to write to a public channel
-      telegram_api::channelForbidden channel_forbidden(0 /*ignored*/, !c->is_megagroup, c->is_megagroup,
-                                                       channel_id.get(), c->access_hash, c->title, 0);
-      on_get_channel_forbidden(channel_forbidden, "CHANNEL_PRIVATE");
-    } else if (!c->status.is_banned()) {
-      if (!c->usernames.is_empty()) {
-        LOG(INFO) << "Drop usernames of " << channel_id;
-        on_update_channel_usernames(c, channel_id, Usernames());
-      }
-
-      on_update_channel_has_location(c, channel_id, false);
-
-      on_update_channel_linked_channel_id(channel_id, ChannelId());
-
-      update_channel(c, channel_id);
-
-      td_->dialog_invite_link_manager_->remove_dialog_access_by_invite_link(DialogId(channel_id));
-    }
-    invalidate_channel_full(channel_id, !c->is_slow_mode_enabled, source);
-    LOG_IF(ERROR, have_input_peer_channel(c, channel_id, AccessRights::Read))
-        << "Have read access to channel after receiving CHANNEL_PRIVATE. Channel state: "
-        << oneline(to_string(get_supergroup_object(channel_id, c)))
-        << ". Previous channel state: " << debug_channel_object;
-
-    return true;
-  }
-  return false;
-}
-
-bool ChatManager::speculative_add_count(int32 &count, int32 delta_count, int32 min_count) {
-  auto new_count = count + delta_count;
-  if (new_count < min_count) {
-    new_count = min_count;
-  }
-  if (new_count == count) {
-    return false;
-  }
-
-  count = new_count;
-  return true;
-}
-
-void ChatManager::speculative_add_channel_participants(ChannelId channel_id, const vector<UserId> &added_user_ids,
-                                                       UserId inviter_user_id, int32 date, bool by_me) {
-  td_->dialog_participant_manager_->add_cached_channel_participants(channel_id, added_user_ids, inviter_user_id, date);
-  auto channel_full = get_channel_full_force(channel_id, true, "speculative_add_channel_participants");
-
-  int32 delta_participant_count = 0;
-  for (auto user_id : added_user_ids) {
-    if (!user_id.is_valid()) {
-      continue;
-    }
-
-    delta_participant_count++;
-    if (channel_full != nullptr && td_->user_manager_->is_user_bot(user_id) &&
-        !td::contains(channel_full->bot_user_ids, user_id)) {
-      channel_full->bot_user_ids.push_back(user_id);
-      channel_full->need_save_to_database = true;
-      reload_channel_full(channel_id, Promise<Unit>(), "speculative_add_channel_participants");
-
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_bots_updated, DialogId(channel_id),
-                         channel_full->bot_user_ids, false);
-    }
-  }
-  if (channel_full != nullptr) {
-    if (channel_full->is_changed) {
-      channel_full->speculative_version++;
-    }
-    update_channel_full(channel_full, channel_id, "speculative_add_channel_participants");
-  }
-  if (delta_participant_count == 0) {
-    return;
-  }
-
-  speculative_add_channel_participant_count(channel_id, delta_participant_count, by_me);
-}
-
-void ChatManager::speculative_delete_channel_participant(ChannelId channel_id, UserId deleted_user_id, bool by_me) {
-  if (!deleted_user_id.is_valid()) {
-    return;
-  }
-
-  td_->dialog_participant_manager_->delete_cached_channel_participant(channel_id, deleted_user_id);
-
-  if (td_->user_manager_->is_user_bot(deleted_user_id)) {
-    auto channel_full = get_channel_full_force(channel_id, true, "speculative_delete_channel_participant");
-    if (channel_full != nullptr && td::remove(channel_full->bot_user_ids, deleted_user_id)) {
-      channel_full->need_save_to_database = true;
-      update_channel_full(channel_full, channel_id, "speculative_delete_channel_participant");
-
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_bots_updated, DialogId(channel_id),
-                         channel_full->bot_user_ids, false);
-    }
-  }
-
-  speculative_add_channel_participant_count(channel_id, -1, by_me);
-}
-
-void ChatManager::speculative_add_channel_participant_count(ChannelId channel_id, int32 delta_participant_count,
-                                                            bool by_me) {
-  if (by_me) {
-    // Currently, ignore all changes made by the current user, because they may have been already counted
-    invalidate_channel_full(channel_id, false, "speculative_add_channel_participant_count");  // just in case
-    return;
-  }
-
-  auto channel_full = get_channel_full_force(channel_id, true, "speculative_add_channel_participant_count");
-  auto min_count = channel_full == nullptr ? 0 : channel_full->administrator_count;
-
-  auto c = get_channel_force(channel_id, "speculative_add_channel_participant_count");
-  if (c != nullptr && c->participant_count != 0 &&
-      speculative_add_count(c->participant_count, delta_participant_count, min_count)) {
-    c->is_changed = true;
-    update_channel(c, channel_id);
-  }
-
-  if (channel_full == nullptr) {
-    return;
-  }
-
-  channel_full->is_changed |=
-      speculative_add_count(channel_full->participant_count, delta_participant_count, min_count);
-
-  if (channel_full->is_changed) {
-    channel_full->speculative_version++;
-  }
-
-  update_channel_full(channel_full, channel_id, "speculative_add_channel_participant_count");
-}
-
-void ChatManager::speculative_add_channel_user(ChannelId channel_id, UserId user_id,
-                                               const DialogParticipantStatus &new_status,
-                                               const DialogParticipantStatus &old_status) {
-  auto c = get_channel_force(channel_id, "speculative_add_channel_user");
-  // channel full must be loaded before c->participant_count is updated, because on_load_channel_full_from_database
-  // must copy the initial c->participant_count before it is speculatibely updated
-  auto channel_full = get_channel_full_force(channel_id, true, "speculative_add_channel_user");
-  int32 min_count = 0;
-  LOG(INFO) << "Speculatively change status of " << user_id << " in " << channel_id << " from " << old_status << " to "
-            << new_status;
-  if (channel_full != nullptr) {
-    channel_full->is_changed |= speculative_add_count(
-        channel_full->administrator_count, new_status.is_administrator_member() - old_status.is_administrator_member());
-    min_count = channel_full->administrator_count;
-  }
-
-  if (c != nullptr && c->participant_count != 0 &&
-      speculative_add_count(c->participant_count, new_status.is_member() - old_status.is_member(), min_count)) {
-    c->is_changed = true;
-    update_channel(c, channel_id);
-  }
-
-  td_->dialog_participant_manager_->update_cached_channel_participant_status(channel_id, user_id, new_status);
-
-  if (channel_full == nullptr) {
-    return;
-  }
-
-  channel_full->is_changed |= speculative_add_count(channel_full->participant_count,
-                                                    new_status.is_member() - old_status.is_member(), min_count);
-  channel_full->is_changed |=
-      speculative_add_count(channel_full->restricted_count, new_status.is_restricted() - old_status.is_restricted());
-  channel_full->is_changed |=
-      speculative_add_count(channel_full->banned_count, new_status.is_banned() - old_status.is_banned());
-
-  if (channel_full->is_changed) {
-    channel_full->speculative_version++;
-  }
-
-  if (new_status.is_member() != old_status.is_member() && td_->user_manager_->is_user_bot(user_id)) {
-    if (new_status.is_member()) {
-      if (!td::contains(channel_full->bot_user_ids, user_id)) {
-        channel_full->bot_user_ids.push_back(user_id);
-        channel_full->need_save_to_database = true;
-        reload_channel_full(channel_id, Promise<Unit>(), "speculative_add_channel_user");
-
-        send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_bots_updated, DialogId(channel_id),
-                           channel_full->bot_user_ids, false);
-      }
-    } else {
-      if (td::remove(channel_full->bot_user_ids, user_id)) {
-        channel_full->need_save_to_database = true;
-
-        send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_bots_updated, DialogId(channel_id),
-                           channel_full->bot_user_ids, false);
-      }
-    }
-  }
-
-  update_channel_full(channel_full, channel_id, "speculative_add_channel_user");
-}
-
-void ChatManager::invalidate_channel_full(ChannelId channel_id, bool need_drop_slow_mode_delay, const char *source) {
-  LOG(INFO) << "Invalidate supergroup full for " << channel_id << " from " << source;
-  auto channel_full = get_channel_full(channel_id, true, "invalidate_channel_full");  // must not load ChannelFull
-  if (channel_full != nullptr) {
-    do_invalidate_channel_full(channel_full, channel_id, need_drop_slow_mode_delay);
-    update_channel_full(channel_full, channel_id, source);
-  } else if (channel_id.is_valid()) {
-    invalidated_channels_full_.insert(channel_id);
-  }
-}
-
-void ChatManager::do_invalidate_channel_full(ChannelFull *channel_full, ChannelId channel_id,
-                                             bool need_drop_slow_mode_delay) {
-  CHECK(channel_full != nullptr);
-  td_->dialog_manager_->on_dialog_info_full_invalidated(DialogId(channel_id));
-  if (channel_full->expires_at >= Time::now()) {
-    channel_full->expires_at = 0.0;
-    channel_full->need_save_to_database = true;
-  }
-  if (need_drop_slow_mode_delay && channel_full->slow_mode_delay != 0) {
-    channel_full->slow_mode_delay = 0;
-    channel_full->slow_mode_next_send_date = 0;
-    channel_full->is_slow_mode_next_send_date_changed = true;
-    channel_full->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_chat_full_photo(ChatFull *chat_full, ChatId chat_id, Photo photo) {
-  CHECK(chat_full != nullptr);
-  if (photo != chat_full->photo) {
-    chat_full->photo = std::move(photo);
-    chat_full->is_changed = true;
-  }
-
-  auto photo_file_ids = photo_get_file_ids(chat_full->photo);
-  if (chat_full->registered_photo_file_ids == photo_file_ids) {
-    return;
-  }
-
-  auto &file_source_id = chat_full->file_source_id;
-  if (!file_source_id.is_valid()) {
-    file_source_id = chat_full_file_source_ids_.get(chat_id);
-    if (file_source_id.is_valid()) {
-      VLOG(file_references) << "Move " << file_source_id << " inside of " << chat_id;
-      chat_full_file_source_ids_.erase(chat_id);
-    } else {
-      VLOG(file_references) << "Need to create new file source for full " << chat_id;
-      file_source_id = td_->file_reference_manager_->create_chat_full_file_source(chat_id);
-    }
-  }
-
-  td_->file_manager_->change_files_source(file_source_id, chat_full->registered_photo_file_ids, photo_file_ids,
-                                          "on_update_chat_full_photo");
-  chat_full->registered_photo_file_ids = std::move(photo_file_ids);
-}
-
-void ChatManager::on_update_channel_full_photo(ChannelFull *channel_full, ChannelId channel_id, Photo photo) {
-  CHECK(channel_full != nullptr);
-  if (photo != channel_full->photo) {
-    channel_full->photo = std::move(photo);
-    channel_full->is_changed = true;
-  }
-
-  auto photo_file_ids = photo_get_file_ids(channel_full->photo);
-  if (channel_full->registered_photo_file_ids == photo_file_ids) {
-    return;
-  }
-
-  auto &file_source_id = channel_full->file_source_id;
-  if (!file_source_id.is_valid()) {
-    file_source_id = channel_full_file_source_ids_.get(channel_id);
-    if (file_source_id.is_valid()) {
-      VLOG(file_references) << "Move " << file_source_id << " inside of " << channel_id;
-      channel_full_file_source_ids_.erase(channel_id);
-    } else {
-      VLOG(file_references) << "Need to create new file source for full " << channel_id;
-      file_source_id = td_->file_reference_manager_->create_channel_full_file_source(channel_id);
-    }
-  }
-
-  td_->file_manager_->change_files_source(file_source_id, channel_full->registered_photo_file_ids, photo_file_ids,
-                                          "on_update_channel_full_photo");
-  channel_full->registered_photo_file_ids = std::move(photo_file_ids);
-}
-
-void ChatManager::on_update_chat_full_invite_link(ChatFull *chat_full,
-                                                  tl_object_ptr<telegram_api::ExportedChatInvite> &&invite_link) {
-  CHECK(chat_full != nullptr);
-  if (update_permanent_invite_link(chat_full->invite_link,
-                                   DialogInviteLink(std::move(invite_link), false, false, "ChatFull"))) {
-    chat_full->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_channel_full_invite_link(ChannelFull *channel_full,
-                                                     tl_object_ptr<telegram_api::ExportedChatInvite> &&invite_link) {
-  CHECK(channel_full != nullptr);
-  if (update_permanent_invite_link(channel_full->invite_link,
-                                   DialogInviteLink(std::move(invite_link), false, false, "ChannelFull"))) {
-    channel_full->is_changed = true;
-  }
-}
-
-void ChatManager::remove_linked_channel_id(ChannelId channel_id) {
-  if (!channel_id.is_valid()) {
-    return;
-  }
-
-  auto linked_channel_id = linked_channel_ids_.get(channel_id);
-  if (linked_channel_id.is_valid()) {
-    linked_channel_ids_.erase(channel_id);
-    linked_channel_ids_.erase(linked_channel_id);
-  }
-}
-
-ChannelId ChatManager::get_linked_channel_id(ChannelId channel_id) const {
-  auto channel_full = get_channel_full(channel_id);
-  if (channel_full != nullptr) {
-    return channel_full->linked_channel_id;
-  }
-
-  return linked_channel_ids_.get(channel_id);
-}
-
-void ChatManager::on_update_channel_full_linked_channel_id(ChannelFull *channel_full, ChannelId channel_id,
-                                                           ChannelId linked_channel_id) {
-  auto old_linked_channel_id = get_linked_channel_id(channel_id);
-  LOG(INFO) << "Uplate linked channel in " << channel_id << " from " << old_linked_channel_id << " to "
-            << linked_channel_id;
-
-  if (channel_full != nullptr && channel_full->linked_channel_id != linked_channel_id &&
-      channel_full->linked_channel_id.is_valid()) {
-    get_channel_force(channel_full->linked_channel_id, "on_update_channel_full_linked_channel_id 10");
-    get_channel_full_force(channel_full->linked_channel_id, true, "on_update_channel_full_linked_channel_id 0");
-  }
-  auto old_linked_linked_channel_id = get_linked_channel_id(linked_channel_id);
-
-  remove_linked_channel_id(channel_id);
-  remove_linked_channel_id(linked_channel_id);
-  if (channel_id.is_valid() && linked_channel_id.is_valid()) {
-    linked_channel_ids_.set(channel_id, linked_channel_id);
-    linked_channel_ids_.set(linked_channel_id, channel_id);
-  }
-
-  if (channel_full != nullptr && channel_full->linked_channel_id != linked_channel_id) {
-    if (channel_full->linked_channel_id.is_valid()) {
-      // remove link from a previously linked channel_full
-      auto linked_channel =
-          get_channel_force(channel_full->linked_channel_id, "on_update_channel_full_linked_channel_id 11");
-      if (linked_channel != nullptr && linked_channel->has_linked_channel) {
-        linked_channel->has_linked_channel = false;
-        linked_channel->is_changed = true;
-        update_channel(linked_channel, channel_full->linked_channel_id);
-        reload_channel(channel_full->linked_channel_id, Auto(), "on_update_channel_full_linked_channel_id 21");
-      }
-      auto linked_channel_full =
-          get_channel_full_force(channel_full->linked_channel_id, true, "on_update_channel_full_linked_channel_id 1");
-      if (linked_channel_full != nullptr && linked_channel_full->linked_channel_id == channel_id) {
-        linked_channel_full->linked_channel_id = ChannelId();
-        linked_channel_full->is_changed = true;
-        update_channel_full(linked_channel_full, channel_full->linked_channel_id,
-                            "on_update_channel_full_linked_channel_id 3");
-      }
-    }
-
-    channel_full->linked_channel_id = linked_channel_id;
-    channel_full->is_changed = true;
-
-    if (channel_full->linked_channel_id.is_valid()) {
-      // add link from a newly linked channel_full
-      auto linked_channel =
-          get_channel_force(channel_full->linked_channel_id, "on_update_channel_full_linked_channel_id 12");
-      if (linked_channel != nullptr && !linked_channel->has_linked_channel) {
-        linked_channel->has_linked_channel = true;
-        linked_channel->is_changed = true;
-        update_channel(linked_channel, channel_full->linked_channel_id);
-        reload_channel(channel_full->linked_channel_id, Auto(), "on_update_channel_full_linked_channel_id 22");
-      }
-      auto linked_channel_full =
-          get_channel_full_force(channel_full->linked_channel_id, true, "on_update_channel_full_linked_channel_id 2");
-      if (linked_channel_full != nullptr && linked_channel_full->linked_channel_id != channel_id) {
-        linked_channel_full->linked_channel_id = channel_id;
-        linked_channel_full->is_changed = true;
-        update_channel_full(linked_channel_full, channel_full->linked_channel_id,
-                            "on_update_channel_full_linked_channel_id 4");
-      }
-    }
-  }
-
-  Channel *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  if (linked_channel_id.is_valid() != c->has_linked_channel) {
-    c->has_linked_channel = linked_channel_id.is_valid();
-    c->is_changed = true;
-    update_channel(c, channel_id);
-  }
-
-  if (old_linked_channel_id != linked_channel_id) {
-    // must be called after the linked channel is changed
-    td_->messages_manager_->on_dialog_linked_channel_updated(DialogId(channel_id), old_linked_channel_id,
-                                                             linked_channel_id);
-  }
-
-  if (linked_channel_id.is_valid()) {
-    auto new_linked_linked_channel_id = get_linked_channel_id(linked_channel_id);
-    LOG(INFO) << "Uplate linked channel in " << linked_channel_id << " from " << old_linked_linked_channel_id << " to "
-              << new_linked_linked_channel_id;
-    if (old_linked_linked_channel_id != new_linked_linked_channel_id) {
-      // must be called after the linked channel is changed
-      td_->messages_manager_->on_dialog_linked_channel_updated(
-          DialogId(linked_channel_id), old_linked_linked_channel_id, new_linked_linked_channel_id);
-    }
-  }
-}
-
-void ChatManager::on_update_channel_full_location(ChannelFull *channel_full, ChannelId channel_id,
-                                                  const DialogLocation &location) {
-  if (channel_full->location != location) {
-    channel_full->location = location;
-    channel_full->is_changed = true;
-  }
-
-  Channel *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  on_update_channel_has_location(c, channel_id, !location.empty());
-  update_channel(c, channel_id);
-}
-
-void ChatManager::on_update_channel_full_slow_mode_delay(ChannelFull *channel_full, ChannelId channel_id,
-                                                         int32 slow_mode_delay, int32 slow_mode_next_send_date) {
-  if (slow_mode_delay < 0) {
-    LOG(ERROR) << "Receive slow mode delay " << slow_mode_delay << " in " << channel_id;
-    slow_mode_delay = 0;
-  }
-
-  if (channel_full->slow_mode_delay != slow_mode_delay) {
-    channel_full->slow_mode_delay = slow_mode_delay;
-    channel_full->is_changed = true;
-  }
-  on_update_channel_full_slow_mode_next_send_date(channel_full, slow_mode_next_send_date);
-
-  Channel *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  bool is_slow_mode_enabled = slow_mode_delay != 0;
-  if (is_slow_mode_enabled != c->is_slow_mode_enabled) {
-    c->is_slow_mode_enabled = is_slow_mode_enabled;
-    c->is_changed = true;
-    update_channel(c, channel_id);
-  }
-}
-
-void ChatManager::on_update_channel_full_slow_mode_next_send_date(ChannelFull *channel_full,
-                                                                  int32 slow_mode_next_send_date) {
-  if (slow_mode_next_send_date < 0) {
-    LOG(ERROR) << "Receive slow mode next send date " << slow_mode_next_send_date;
-    slow_mode_next_send_date = 0;
-  }
-  if (channel_full->slow_mode_delay == 0 && slow_mode_next_send_date > 0) {
-    LOG(ERROR) << "Slow mode is disabled, but next send date is " << slow_mode_next_send_date;
-    slow_mode_next_send_date = 0;
-  }
-
-  if (slow_mode_next_send_date != 0) {
-    auto now = G()->unix_time();
-    if (slow_mode_next_send_date <= now) {
-      slow_mode_next_send_date = 0;
-    }
-    if (slow_mode_next_send_date > now + 3601) {
-      slow_mode_next_send_date = now + 3601;
-    }
-  }
-  if (channel_full->slow_mode_next_send_date != slow_mode_next_send_date) {
-    channel_full->slow_mode_next_send_date = slow_mode_next_send_date;
-    channel_full->is_slow_mode_next_send_date_changed = true;
-    if (channel_full->unrestrict_boost_count == 0 || channel_full->boost_count < channel_full->unrestrict_boost_count) {
-      channel_full->is_changed = true;
-    } else {
-      channel_full->need_save_to_database = true;
-    }
-  }
-}
-
-bool ChatManager::update_permanent_invite_link(DialogInviteLink &invite_link, DialogInviteLink new_invite_link) {
-  if (new_invite_link != invite_link) {
-    if (invite_link.is_valid() && invite_link.get_invite_link() != new_invite_link.get_invite_link()) {
-      // old link was invalidated
-      td_->dialog_invite_link_manager_->invalidate_invite_link_info(invite_link.get_invite_link());
-    }
-
-    invite_link = std::move(new_invite_link);
-    return true;
-  }
-  return false;
-}
-
-void ChatManager::repair_chat_participants(ChatId chat_id) {
-  send_get_chat_full_query(chat_id, Auto(), "repair_chat_participants");
-}
-
-void ChatManager::on_update_chat_add_user(ChatId chat_id, UserId inviter_user_id, UserId user_id, int32 date,
-                                          int32 version) {
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id;
-    return;
-  }
-  if (!td_->user_manager_->have_user(user_id)) {
-    LOG(ERROR) << "Can't find " << user_id;
-    return;
-  }
-  if (!td_->user_manager_->have_user(inviter_user_id)) {
-    LOG(ERROR) << "Can't find " << inviter_user_id;
-    return;
-  }
-  LOG(INFO) << "Receive updateChatParticipantAdd to " << chat_id << " with " << user_id << " invited by "
-            << inviter_user_id << " at " << date << " with version " << version;
-
-  ChatFull *chat_full = get_chat_full_force(chat_id, "on_update_chat_add_user");
-  if (chat_full == nullptr) {
-    LOG(INFO) << "Ignoring update about members of " << chat_id;
-    return;
-  }
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    LOG(ERROR) << "Receive updateChatParticipantAdd for unknown " << chat_id << ". Couldn't apply it";
-    repair_chat_participants(chat_id);
-    return;
-  }
-  if (c->status.is_left()) {
-    // possible if updates come out of order
-    LOG(WARNING) << "Receive updateChatParticipantAdd for left " << chat_id << ". Couldn't apply it";
-
-    repair_chat_participants(chat_id);  // just in case
-    return;
-  }
-  if (on_update_chat_full_participants_short(chat_full, chat_id, version)) {
-    for (auto &participant : chat_full->participants) {
-      if (participant.dialog_id_ == DialogId(user_id)) {
-        if (participant.inviter_user_id_ != inviter_user_id) {
-          LOG(ERROR) << user_id << " was readded to " << chat_id << " by " << inviter_user_id
-                     << ", previously invited by " << participant.inviter_user_id_;
-          participant.inviter_user_id_ = inviter_user_id;
-          participant.joined_date_ = date;
-          repair_chat_participants(chat_id);
-        } else {
-          // Possible if update comes twice
-          LOG(INFO) << user_id << " was readded to " << chat_id;
-        }
-        return;
-      }
-    }
-    chat_full->participants.push_back(DialogParticipant{DialogId(user_id), inviter_user_id, date,
-                                                        user_id == chat_full->creator_user_id
-                                                            ? DialogParticipantStatus::Creator(true, false, string())
-                                                            : DialogParticipantStatus::Member(0)});
-    update_chat_online_member_count(chat_full, chat_id, false);
-    chat_full->is_changed = true;
-    update_chat_full(chat_full, chat_id, "on_update_chat_add_user");
-
-    // Chat is already updated
-    if (chat_full->version == c->version &&
-        narrow_cast<int32>(chat_full->participants.size()) != c->participant_count) {
-      LOG(ERROR) << "Number of members in " << chat_id << " with version " << c->version << " is "
-                 << c->participant_count << " but there are " << chat_full->participants.size()
-                 << " members in the ChatFull";
-      repair_chat_participants(chat_id);
-    }
-  }
-}
-
-void ChatManager::on_update_chat_edit_administrator(ChatId chat_id, UserId user_id, bool is_administrator,
-                                                    int32 version) {
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id;
-    return;
-  }
-  if (!td_->user_manager_->have_user(user_id)) {
-    LOG(ERROR) << "Can't find " << user_id;
-    return;
-  }
-  LOG(INFO) << "Receive updateChatParticipantAdmin in " << chat_id << " with " << user_id << ", administrator rights "
-            << (is_administrator ? "enabled" : "disabled") << " with version " << version;
-
-  auto c = get_chat_force(chat_id, "on_update_chat_edit_administrator");
-  if (c == nullptr) {
-    LOG(INFO) << "Ignoring update about members of unknown " << chat_id;
-    return;
-  }
-
-  if (c->status.is_left()) {
-    // possible if updates come out of order
-    LOG(WARNING) << "Receive updateChatParticipantAdmin for left " << chat_id << ". Couldn't apply it";
-
-    repair_chat_participants(chat_id);  // just in case
-    return;
-  }
-  if (version <= -1) {
-    LOG(ERROR) << "Receive wrong version " << version << " for " << chat_id;
-    return;
-  }
-  CHECK(c->version >= 0);
-
-  auto status = is_administrator ? DialogParticipantStatus::GroupAdministrator(c->status.is_creator())
-                                 : DialogParticipantStatus::Member(0);
-  if (version > c->version) {
-    if (version != c->version + 1) {
-      LOG(INFO) << "Administrators of " << chat_id << " with version " << c->version
-                << " has changed, but new version is " << version;
-      repair_chat_participants(chat_id);
-      return;
-    }
-
-    c->version = version;
-    c->need_save_to_database = true;
-    if (user_id == td_->user_manager_->get_my_id() && !c->status.is_creator()) {
-      // if chat with version was already received, then the update is already processed
-      // so we need to call on_update_chat_status only if version > c->version
-      on_update_chat_status(c, chat_id, status);
-    }
-    update_chat(c, chat_id);
-  }
-
-  ChatFull *chat_full = get_chat_full_force(chat_id, "on_update_chat_edit_administrator");
-  if (chat_full != nullptr) {
-    if (chat_full->version + 1 == version) {
-      for (auto &participant : chat_full->participants) {
-        if (participant.dialog_id_ == DialogId(user_id)) {
-          participant.status_ = std::move(status);
-          chat_full->is_changed = true;
-          update_chat_full(chat_full, chat_id, "on_update_chat_edit_administrator");
-          return;
-        }
-      }
-    }
-
-    // can't find chat member or version have increased too much
-    repair_chat_participants(chat_id);
-  }
-}
-
-void ChatManager::on_update_chat_delete_user(ChatId chat_id, UserId user_id, int32 version) {
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id;
-    return;
-  }
-  if (!td_->user_manager_->have_user(user_id)) {
-    LOG(ERROR) << "Can't find " << user_id;
-    return;
-  }
-  LOG(INFO) << "Receive updateChatParticipantDelete from " << chat_id << " with " << user_id << " and version "
-            << version;
-
-  ChatFull *chat_full = get_chat_full_force(chat_id, "on_update_chat_delete_user");
-  if (chat_full == nullptr) {
-    LOG(INFO) << "Ignoring update about members of " << chat_id;
-    return;
-  }
-  const Chat *c = get_chat_force(chat_id, "on_update_chat_delete_user");
-  if (c == nullptr) {
-    LOG(ERROR) << "Receive updateChatParticipantDelete for unknown " << chat_id;
-    repair_chat_participants(chat_id);
-    return;
-  }
-  if (user_id == td_->user_manager_->get_my_id()) {
-    LOG_IF(WARNING, c->status.is_member()) << "User was removed from " << chat_id
-                                           << " but it is not left the group. Possible if updates comes out of order";
-    return;
-  }
-  if (c->status.is_left()) {
-    // possible if updates come out of order
-    LOG(INFO) << "Receive updateChatParticipantDelete for left " << chat_id;
-
-    repair_chat_participants(chat_id);
-    return;
-  }
-  if (on_update_chat_full_participants_short(chat_full, chat_id, version)) {
-    for (size_t i = 0; i < chat_full->participants.size(); i++) {
-      if (chat_full->participants[i].dialog_id_ == DialogId(user_id)) {
-        chat_full->participants[i] = chat_full->participants.back();
-        chat_full->participants.resize(chat_full->participants.size() - 1);
-        chat_full->is_changed = true;
-        update_chat_online_member_count(chat_full, chat_id, false);
-        update_chat_full(chat_full, chat_id, "on_update_chat_delete_user");
-
-        if (static_cast<int32>(chat_full->participants.size()) != c->participant_count) {
-          repair_chat_participants(chat_id);
-        }
-        return;
-      }
-    }
-    LOG(ERROR) << "Can't find basic group member " << user_id << " in " << chat_id << " to be removed";
-    repair_chat_participants(chat_id);
-  }
-}
-
-void ChatManager::on_update_chat_status(Chat *c, ChatId chat_id, DialogParticipantStatus status) {
-  if (c->status != status) {
-    LOG(INFO) << "Update " << chat_id << " status from " << c->status << " to " << status;
-    bool need_reload_group_call = c->status.can_manage_calls() != status.can_manage_calls();
-    bool need_drop_invite_link = c->status.can_manage_invite_links() && !status.can_manage_invite_links();
-
-    c->status = std::move(status);
-    c->is_status_changed = true;
-
-    if (c->status.is_left()) {
-      c->participant_count = 0;
-      c->version = -1;
-      c->default_permissions_version = -1;
-      c->pinned_message_version = -1;
-
-      drop_chat_full(chat_id);
-    } else if (need_drop_invite_link) {
-      ChatFull *chat_full = get_chat_full_force(chat_id, "on_update_chat_status");
-      if (chat_full != nullptr) {
-        on_update_chat_full_invite_link(chat_full, nullptr);
-        update_chat_full(chat_full, chat_id, "on_update_chat_status");
-      }
-    }
-    if (need_reload_group_call) {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_update_dialog_group_call_rights,
-                         DialogId(chat_id));
-    }
-
-    c->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_chat_default_permissions(ChatId chat_id, RestrictedRights default_permissions,
-                                                     int32 version) {
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id;
-    return;
-  }
-  auto c = get_chat_force(chat_id, "on_update_chat_default_permissions");
-  if (c == nullptr) {
-    LOG(INFO) << "Ignoring update about unknown " << chat_id;
-    return;
-  }
-
-  LOG(INFO) << "Receive updateChatDefaultBannedRights in " << chat_id << " with " << default_permissions
-            << " and version " << version << ". Current version is " << c->version;
-
-  if (c->status.is_left()) {
-    // possible if updates come out of order
-    LOG(WARNING) << "Receive updateChatDefaultBannedRights for left " << chat_id << ". Couldn't apply it";
-
-    repair_chat_participants(chat_id);  // just in case
-    return;
-  }
-  if (version <= -1) {
-    LOG(ERROR) << "Receive wrong version " << version << " for " << chat_id;
-    return;
-  }
-  CHECK(c->version >= 0);
-
-  if (version > c->version) {
-    // this should be unreachable, because version and default permissions must be already updated from
-    // the chat object in on_get_chat
-    if (version != c->version + 1) {
-      LOG(INFO) << "Default permissions of " << chat_id << " with version " << c->version
-                << " has changed, but new version is " << version;
-      repair_chat_participants(chat_id);
-      return;
-    }
-
-    LOG_IF(ERROR, default_permissions == c->default_permissions)
-        << "Receive updateChatDefaultBannedRights in " << chat_id << " with version " << version
-        << " and default_permissions = " << default_permissions
-        << ", but default_permissions are not changed. Current version is " << c->version;
-    c->version = version;
-    c->need_save_to_database = true;
-    on_update_chat_default_permissions(c, chat_id, default_permissions, version);
-    update_chat(c, chat_id);
-  }
-}
-
-void ChatManager::on_update_chat_default_permissions(Chat *c, ChatId chat_id, RestrictedRights default_permissions,
-                                                     int32 version) {
-  if (c->default_permissions != default_permissions && version >= c->default_permissions_version) {
-    LOG(INFO) << "Update " << chat_id << " default permissions from " << c->default_permissions << " to "
-              << default_permissions << " and version from " << c->default_permissions_version << " to " << version;
-    c->default_permissions = default_permissions;
-    c->default_permissions_version = version;
-    c->is_default_permissions_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_chat_noforwards(Chat *c, ChatId chat_id, bool noforwards) {
-  if (c->noforwards != noforwards) {
-    LOG(INFO) << "Update " << chat_id << " has_protected_content from " << c->noforwards << " to " << noforwards;
-    c->noforwards = noforwards;
-    c->is_noforwards_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_chat_pinned_message(ChatId chat_id, MessageId pinned_message_id, int32 version) {
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id;
-    return;
-  }
-  auto c = get_chat_force(chat_id, "on_update_chat_pinned_message");
-  if (c == nullptr) {
-    LOG(INFO) << "Ignoring update about unknown " << chat_id;
-    return;
-  }
-
-  LOG(INFO) << "Receive updateChatPinnedMessage in " << chat_id << " with " << pinned_message_id << " and version "
-            << version << ". Current version is " << c->version << "/" << c->pinned_message_version;
-
-  if (c->status.is_left()) {
-    // possible if updates come out of order
-    repair_chat_participants(chat_id);  // just in case
-    return;
-  }
-  if (version <= -1) {
-    LOG(ERROR) << "Receive wrong version " << version << " for " << chat_id;
-    return;
-  }
-  CHECK(c->version >= 0);
-
-  if (version >= c->pinned_message_version) {
-    if (version != c->version + 1 && version != c->version) {
-      LOG(INFO) << "Pinned message of " << chat_id << " with version " << c->version
-                << " has changed, but new version is " << version;
-      repair_chat_participants(chat_id);
-    } else if (version == c->version + 1) {
-      c->version = version;
-      c->need_save_to_database = true;
-    }
-    td_->messages_manager_->on_update_dialog_last_pinned_message_id(DialogId(chat_id), pinned_message_id);
-    if (version > c->pinned_message_version) {
-      LOG(INFO) << "Change pinned message version of " << chat_id << " from " << c->pinned_message_version << " to "
-                << version;
-      c->pinned_message_version = version;
-      c->need_save_to_database = true;
-    }
-    update_chat(c, chat_id);
-  }
-}
-
-void ChatManager::on_update_chat_participant_count(Chat *c, ChatId chat_id, int32 participant_count, int32 version,
-                                                   const string &debug_str) {
-  if (version <= -1) {
-    LOG(ERROR) << "Receive wrong version " << version << " in " << chat_id << debug_str;
-    return;
-  }
-
-  if (version < c->version) {
-    // some outdated data
-    LOG(INFO) << "Receive number of members in " << chat_id << " with version " << version << debug_str
-              << ", but current version is " << c->version;
-    return;
-  }
-
-  if (c->participant_count != participant_count) {
-    if (version == c->version && participant_count != 0) {
-      // version is not changed when deleted user is removed from the chat
-      LOG_IF(ERROR, c->participant_count != participant_count + 1)
-          << "Number of members in " << chat_id << " has changed from " << c->participant_count << " to "
-          << participant_count << ", but version " << c->version << " remains unchanged" << debug_str;
-      repair_chat_participants(chat_id);
-    }
-
-    c->participant_count = participant_count;
-    c->version = version;
-    c->is_changed = true;
-    return;
-  }
-
-  if (version > c->version) {
-    c->version = version;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_chat_photo(Chat *c, ChatId chat_id,
-                                       tl_object_ptr<telegram_api::ChatPhoto> &&chat_photo_ptr) {
-  on_update_chat_photo(
-      c, chat_id, get_dialog_photo(td_->file_manager_.get(), DialogId(chat_id), 0, std::move(chat_photo_ptr)), true);
-}
-
-void ChatManager::on_update_chat_photo(Chat *c, ChatId chat_id, DialogPhoto &&photo, bool invalidate_photo_cache) {
-  if (td_->auth_manager_->is_bot()) {
-    photo.minithumbnail.clear();
-  }
-
-  if (need_update_dialog_photo(c->photo, photo)) {
-    LOG(DEBUG) << "Update photo of " << chat_id << " from " << c->photo << " to " << photo;
-    c->photo = std::move(photo);
-    c->is_photo_changed = true;
-    c->need_save_to_database = true;
-
-    if (invalidate_photo_cache) {
-      auto chat_full = get_chat_full(chat_id);  // must not load ChatFull
-      if (chat_full != nullptr) {
-        if (!chat_full->photo.is_empty()) {
-          chat_full->photo = Photo();
-          chat_full->is_changed = true;
-        }
-        if (c->photo.small_file_id.is_valid()) {
-          reload_chat_full(chat_id, Auto(), "on_update_chat_photo");
-        }
-        update_chat_full(chat_full, chat_id, "on_update_chat_photo");
-      }
-    }
-  } else if (need_update_dialog_photo_minithumbnail(c->photo.minithumbnail, photo.minithumbnail)) {
-    c->photo.minithumbnail = std::move(photo.minithumbnail);
-    c->is_photo_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_chat_title(Chat *c, ChatId chat_id, string &&title) {
-  if (c->title != title) {
-    c->title = std::move(title);
-    c->is_title_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_chat_active(Chat *c, ChatId chat_id, bool is_active) {
-  if (c->is_active != is_active) {
-    c->is_active = is_active;
-    c->is_is_active_changed = true;
-    c->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_chat_migrated_to_channel_id(Chat *c, ChatId chat_id, ChannelId migrated_to_channel_id) {
-  if (c->migrated_to_channel_id != migrated_to_channel_id && migrated_to_channel_id.is_valid()) {
-    LOG_IF(ERROR, c->migrated_to_channel_id.is_valid())
-        << "Upgraded supergroup ID for " << chat_id << " has changed from " << c->migrated_to_channel_id << " to "
-        << migrated_to_channel_id;
-    c->migrated_to_channel_id = migrated_to_channel_id;
-    c->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_chat_description(ChatId chat_id, string &&description) {
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id;
-    return;
-  }
-
-  auto chat_full = get_chat_full_force(chat_id, "on_update_chat_description");
-  if (chat_full == nullptr) {
-    return;
-  }
-  if (chat_full->description != description) {
-    chat_full->description = std::move(description);
-    chat_full->is_changed = true;
-    update_chat_full(chat_full, chat_id, "on_update_chat_description");
-    td_->group_call_manager_->on_update_dialog_about(DialogId(chat_id), chat_full->description, true);
-  }
-}
-
-bool ChatManager::on_update_chat_full_participants_short(ChatFull *chat_full, ChatId chat_id, int32 version) {
-  if (version <= -1) {
-    LOG(ERROR) << "Receive wrong version " << version << " for " << chat_id;
-    return false;
-  }
-  if (chat_full->version == -1) {
-    // chat members are unknown, nothing to update
-    return false;
-  }
-
-  if (chat_full->version + 1 == version) {
-    chat_full->version = version;
-    return true;
-  }
-
-  LOG(INFO) << "Number of members in " << chat_id << " with version " << chat_full->version
-            << " has changed, but new version is " << version;
-  repair_chat_participants(chat_id);
-  return false;
-}
-
-void ChatManager::on_update_chat_full_participants(ChatFull *chat_full, ChatId chat_id,
-                                                   vector<DialogParticipant> participants, int32 version,
-                                                   bool from_update) {
-  if (version <= -1) {
-    LOG(ERROR) << "Receive members with wrong version " << version << " in " << chat_id;
-    return;
-  }
-
-  if (version < chat_full->version) {
-    // some outdated data
-    LOG(WARNING) << "Receive members of " << chat_id << " with version " << version << " but current version is "
-                 << chat_full->version;
-    return;
-  }
-
-  if ((chat_full->participants.size() != participants.size() && version == chat_full->version) ||
-      (from_update && version != chat_full->version + 1)) {
-    LOG(INFO) << "Members of " << chat_id << " has changed";
-    // this is possible in very rare situations
-    repair_chat_participants(chat_id);
-  }
-
-  chat_full->participants = std::move(participants);
-  chat_full->version = version;
-  chat_full->is_changed = true;
-  update_chat_online_member_count(chat_full, chat_id, true);
-}
-
-void ChatManager::drop_chat_full(ChatId chat_id) {
-  ChatFull *chat_full = get_chat_full_force(chat_id, "drop_chat_full");
-  if (chat_full == nullptr) {
-    return;
-  }
-
-  LOG(INFO) << "Drop basicGroupFullInfo of " << chat_id;
-  on_update_chat_full_photo(chat_full, chat_id, Photo());
-  // chat_full->creator_user_id = UserId();
-  chat_full->participants.clear();
-  chat_full->bot_commands.clear();
-  chat_full->version = -1;
-  on_update_chat_full_invite_link(chat_full, nullptr);
-  update_chat_online_member_count(chat_full, chat_id, true);
-  chat_full->is_changed = true;
-  update_chat_full(chat_full, chat_id, "drop_chat_full");
-}
-
-void ChatManager::on_update_channel_photo(Channel *c, ChannelId channel_id,
-                                          tl_object_ptr<telegram_api::ChatPhoto> &&chat_photo_ptr) {
-  on_update_channel_photo(
-      c, channel_id,
-      get_dialog_photo(td_->file_manager_.get(), DialogId(channel_id), c->access_hash, std::move(chat_photo_ptr)),
-      true);
-}
-
-void ChatManager::on_update_chat_bot_commands(ChatId chat_id, BotCommands &&bot_commands) {
-  auto chat_full = get_chat_full_force(chat_id, "on_update_chat_bot_commands");
-  if (chat_full != nullptr && BotCommands::update_all_bot_commands(chat_full->bot_commands, std::move(bot_commands))) {
-    chat_full->is_changed = true;
-    update_chat_full(chat_full, chat_id, "on_update_chat_bot_commands");
-  }
-}
-
-void ChatManager::on_update_chat_permanent_invite_link(ChatId chat_id, const DialogInviteLink &invite_link) {
-  auto chat_full = get_chat_full_force(chat_id, "on_update_chat_permanent_invite_link");
-  if (chat_full != nullptr && update_permanent_invite_link(chat_full->invite_link, invite_link)) {
-    chat_full->is_changed = true;
-    update_chat_full(chat_full, chat_id, "on_update_chat_permanent_invite_link");
-  }
-}
-
-void ChatManager::on_update_channel_photo(Channel *c, ChannelId channel_id, DialogPhoto &&photo,
-                                          bool invalidate_photo_cache) {
-  if (td_->auth_manager_->is_bot()) {
-    photo.minithumbnail.clear();
-  }
-
-  if (need_update_dialog_photo(c->photo, photo)) {
-    LOG(DEBUG) << "Update photo of " << channel_id << " from " << c->photo << " to " << photo;
-    c->photo = std::move(photo);
-    c->is_photo_changed = true;
-    c->need_save_to_database = true;
-
-    if (invalidate_photo_cache) {
-      auto channel_full = get_channel_full(channel_id, true, "on_update_channel_photo");  // must not load ChannelFull
-      if (channel_full != nullptr) {
-        if (!channel_full->photo.is_empty()) {
-          channel_full->photo = Photo();
-          channel_full->is_changed = true;
-        }
-        if (c->photo.small_file_id.is_valid()) {
-          if (channel_full->expires_at > 0.0) {
-            channel_full->expires_at = 0.0;
-            channel_full->need_save_to_database = true;
-          }
-          reload_channel_full(channel_id, Auto(), "on_update_channel_photo");
-        }
-        update_channel_full(channel_full, channel_id, "on_update_channel_photo");
-      }
-    }
-  } else if (need_update_dialog_photo_minithumbnail(c->photo.minithumbnail, photo.minithumbnail)) {
-    c->photo.minithumbnail = std::move(photo.minithumbnail);
-    c->is_photo_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_emoji_status(Channel *c, ChannelId channel_id,
-                                                 unique_ptr<EmojiStatus> emoji_status) {
-  if (c->emoji_status != emoji_status) {
-    LOG(DEBUG) << "Change emoji status of " << channel_id << " from " << c->emoji_status << " to " << emoji_status;
-    c->emoji_status = std::move(emoji_status);
-    c->is_emoji_status_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_accent_color_id(Channel *c, ChannelId channel_id, AccentColorId accent_color_id) {
-  if (accent_color_id == AccentColorId(channel_id) || !accent_color_id.is_valid()) {
-    accent_color_id = AccentColorId();
-  }
-  if (c->accent_color_id != accent_color_id) {
-    c->accent_color_id = accent_color_id;
-    c->is_accent_color_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_background_custom_emoji_id(Channel *c, ChannelId channel_id,
-                                                               CustomEmojiId background_custom_emoji_id) {
-  if (c->background_custom_emoji_id != background_custom_emoji_id) {
-    c->background_custom_emoji_id = background_custom_emoji_id;
-    c->is_accent_color_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_profile_accent_color_id(Channel *c, ChannelId channel_id,
-                                                            AccentColorId profile_accent_color_id) {
-  if (!profile_accent_color_id.is_valid()) {
-    profile_accent_color_id = AccentColorId();
-  }
-  if (c->profile_accent_color_id != profile_accent_color_id) {
-    c->profile_accent_color_id = profile_accent_color_id;
-    c->is_accent_color_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_profile_background_custom_emoji_id(
-    Channel *c, ChannelId channel_id, CustomEmojiId profile_background_custom_emoji_id) {
-  if (c->profile_background_custom_emoji_id != profile_background_custom_emoji_id) {
-    c->profile_background_custom_emoji_id = profile_background_custom_emoji_id;
-    c->is_accent_color_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_title(Channel *c, ChannelId channel_id, string &&title) {
-  if (c->title != title) {
-    c->title = std::move(title);
-    c->is_title_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_status(Channel *c, ChannelId channel_id, DialogParticipantStatus &&status) {
-  if (c->status != status) {
-    LOG(INFO) << "Update " << channel_id << " status from " << c->status << " to " << status;
-    if (c->is_update_supergroup_sent) {
-      on_channel_status_changed(c, channel_id, c->status, status);
-    }
-    c->status = status;
-    c->is_status_changed = true;
-    c->is_changed = true;
-  }
-}
-
-void ChatManager::on_channel_status_changed(Channel *c, ChannelId channel_id, const DialogParticipantStatus &old_status,
-                                            const DialogParticipantStatus &new_status) {
-  CHECK(c->is_update_supergroup_sent);
-  bool have_channel_full = get_channel_full(channel_id) != nullptr;
-
-  if (old_status.can_post_stories() != new_status.can_post_stories()) {
-    td_->story_manager_->update_dialogs_to_send_stories(channel_id, new_status.can_post_stories());
-  }
-
-  bool need_reload_group_call = old_status.can_manage_calls() != new_status.can_manage_calls();
-  if (old_status.can_manage_invite_links() && !new_status.can_manage_invite_links()) {
-    auto channel_full = get_channel_full(channel_id, true, "on_channel_status_changed");
-    if (channel_full != nullptr) {  // otherwise invite_link will be dropped when the channel is loaded
-      on_update_channel_full_invite_link(channel_full, nullptr);
-      do_invalidate_channel_full(channel_full, channel_id, !c->is_slow_mode_enabled);
-      update_channel_full(channel_full, channel_id, "on_channel_status_changed");
-    }
-  } else {
-    invalidate_channel_full(channel_id, !c->is_slow_mode_enabled, "on_channel_status_changed");
-  }
-
-  if (old_status.is_creator() != new_status.is_creator()) {
-    c->is_creator_changed = true;
-
-    send_get_channel_full_query(nullptr, channel_id, Auto(), "update channel owner");
-    td_->dialog_participant_manager_->reload_dialog_administrators(DialogId(channel_id), {}, Auto());
-    td_->suggested_action_manager_->remove_dialog_suggested_action(
-        SuggestedAction{SuggestedAction::Type::ConvertToGigagroup, DialogId(channel_id)});
-  }
-
-  if (old_status.is_member() != new_status.is_member() || new_status.is_banned()) {
-    td_->dialog_invite_link_manager_->remove_dialog_access_by_invite_link(DialogId(channel_id));
-
-    if (new_status.is_member() || new_status.is_creator()) {
-      reload_channel_full(channel_id,
-                          PromiseCreator::lambda([channel_id](Unit) { LOG(INFO) << "Reloaded full " << channel_id; }),
-                          "on_channel_status_changed");
-    }
-  }
-  if (need_reload_group_call) {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_update_dialog_group_call_rights,
-                       DialogId(channel_id));
-  }
-  bool is_bot = td_->auth_manager_->is_bot();
-  if (is_bot && old_status.is_administrator() && !new_status.is_administrator()) {
-    td_->dialog_participant_manager_->drop_channel_participant_cache(channel_id);
-  }
-  if (is_bot && old_status.is_member() && !new_status.is_member() && !G()->use_message_database()) {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_deleted, DialogId(channel_id),
-                       Promise<Unit>());
-  }
-  if (!is_bot && old_status.is_member() != new_status.is_member()) {
-    DialogId dialog_id(channel_id);
-    if (new_status.is_member()) {
-      send_closure_later(td_->story_manager_actor_, &StoryManager::reload_dialog_expiring_stories, dialog_id);
-    } else {
-      send_closure_later(td_->story_manager_actor_, &StoryManager::on_dialog_active_stories_order_updated, dialog_id,
-                         "on_channel_status_changed");
-    }
-
-    send_closure_later(G()->messages_manager(), &MessagesManager::force_create_dialog, dialog_id,
-                       "on_channel_status_changed", true, true);
-  }
-
-  // must not load ChannelFull, because must not change the Channel
-  CHECK(have_channel_full == (get_channel_full(channel_id) != nullptr));
-}
-
-void ChatManager::on_update_channel_default_permissions(Channel *c, ChannelId channel_id,
-                                                        RestrictedRights default_permissions) {
-  if (c->is_megagroup && c->default_permissions != default_permissions) {
-    LOG(INFO) << "Update " << channel_id << " default permissions from " << c->default_permissions << " to "
-              << default_permissions;
-    c->default_permissions = default_permissions;
-    c->is_default_permissions_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_has_location(Channel *c, ChannelId channel_id, bool has_location) {
-  if (c->has_location != has_location) {
-    LOG(INFO) << "Update " << channel_id << " has_location from " << c->has_location << " to " << has_location;
-    c->has_location = has_location;
-    c->is_has_location_changed = true;
-    c->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_channel_noforwards(Channel *c, ChannelId channel_id, bool noforwards) {
-  if (c->noforwards != noforwards) {
-    LOG(INFO) << "Update " << channel_id << " has_protected_content from " << c->noforwards << " to " << noforwards;
-    c->noforwards = noforwards;
-    c->is_noforwards_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_story_ids(ChannelId channel_id, StoryId max_active_story_id,
-                                              StoryId max_read_story_id) {
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id;
-    return;
-  }
-
-  Channel *c = get_channel_force(channel_id, "on_update_channel_story_ids");
-  if (c != nullptr) {
-    on_update_channel_story_ids_impl(c, channel_id, max_active_story_id, max_read_story_id);
-    update_channel(c, channel_id);
-  } else {
-    LOG(INFO) << "Ignore update channel story identifiers about unknown " << channel_id;
-  }
-}
-
-void ChatManager::on_update_channel_story_ids_impl(Channel *c, ChannelId channel_id, StoryId max_active_story_id,
-                                                   StoryId max_read_story_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (max_active_story_id != StoryId() && !max_active_story_id.is_server()) {
-    LOG(ERROR) << "Receive max active " << max_active_story_id << " for " << channel_id;
-    return;
-  }
-  if (max_read_story_id != StoryId() && !max_read_story_id.is_server()) {
-    LOG(ERROR) << "Receive max read " << max_read_story_id << " for " << channel_id;
-    return;
-  }
-
-  auto has_unread_stories = get_channel_has_unread_stories(c);
-  if (c->max_active_story_id != max_active_story_id) {
-    LOG(DEBUG) << "Change last active story of " << channel_id << " from " << c->max_active_story_id << " to "
-               << max_active_story_id;
-    c->max_active_story_id = max_active_story_id;
-    c->need_save_to_database = true;
-  }
-  if (need_poll_channel_active_stories(c, channel_id)) {
-    auto max_active_story_id_next_reload_time = Time::now() + MAX_ACTIVE_STORY_ID_RELOAD_TIME;
-    if (max_active_story_id_next_reload_time >
-        c->max_active_story_id_next_reload_time + MAX_ACTIVE_STORY_ID_RELOAD_TIME / 5) {
-      LOG(DEBUG) << "Change max_active_story_id_next_reload_time of " << channel_id;
-      c->max_active_story_id_next_reload_time = max_active_story_id_next_reload_time;
-      c->need_save_to_database = true;
-    }
-  }
-  if (!max_active_story_id.is_valid()) {
-    CHECK(max_read_story_id == StoryId());
-    if (c->max_read_story_id != StoryId()) {
-      LOG(DEBUG) << "Drop last read " << c->max_read_story_id << " of " << channel_id;
-      c->max_read_story_id = StoryId();
-      c->need_save_to_database = true;
-    }
-  } else if (max_read_story_id.get() > c->max_read_story_id.get()) {
-    LOG(DEBUG) << "Change last read story of " << channel_id << " from " << c->max_read_story_id << " to "
-               << max_read_story_id;
-    c->max_read_story_id = max_read_story_id;
-    c->need_save_to_database = true;
-  }
-  if (has_unread_stories != get_channel_has_unread_stories(c)) {
-    LOG(DEBUG) << "Change has_unread_stories of " << channel_id << " to " << !has_unread_stories;
-    c->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_channel_max_read_story_id(ChannelId channel_id, StoryId max_read_story_id) {
-  CHECK(channel_id.is_valid());
-
-  Channel *c = get_channel(channel_id);
-  if (c != nullptr) {
-    on_update_channel_max_read_story_id(c, channel_id, max_read_story_id);
-    update_channel(c, channel_id);
-  }
-}
-
-void ChatManager::on_update_channel_max_read_story_id(Channel *c, ChannelId channel_id, StoryId max_read_story_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto has_unread_stories = get_channel_has_unread_stories(c);
-  if (max_read_story_id.get() > c->max_read_story_id.get()) {
-    LOG(DEBUG) << "Change last read story of " << channel_id << " from " << c->max_read_story_id << " to "
-               << max_read_story_id;
-    c->max_read_story_id = max_read_story_id;
-    c->need_save_to_database = true;
-  }
-  if (has_unread_stories != get_channel_has_unread_stories(c)) {
-    LOG(DEBUG) << "Change has_unread_stories of " << channel_id << " to " << !has_unread_stories;
-    c->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_channel_stories_hidden(ChannelId channel_id, bool stories_hidden) {
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id;
-    return;
-  }
-
-  Channel *c = get_channel_force(channel_id, "on_update_channel_stories_hidden");
-  if (c != nullptr) {
-    on_update_channel_stories_hidden(c, channel_id, stories_hidden);
-    update_channel(c, channel_id);
-  } else {
-    LOG(INFO) << "Ignore update channel stories are archived about unknown " << channel_id;
-  }
-}
-
-void ChatManager::on_update_channel_stories_hidden(Channel *c, ChannelId channel_id, bool stories_hidden) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (c->stories_hidden != stories_hidden) {
-    LOG(DEBUG) << "Change stories are archived of " << channel_id << " to " << stories_hidden;
-    c->stories_hidden = stories_hidden;
-    c->is_stories_hidden_changed = true;
-    c->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_bot_verification_icon(Channel *c, ChannelId channel_id,
-                                                          CustomEmojiId bot_verification_icon) {
-  if (c->bot_verification_icon != bot_verification_icon) {
-    c->bot_verification_icon = bot_verification_icon;
-    c->is_changed = true;
-  }
-}
-
-void ChatManager::on_update_channel_participant_count(ChannelId channel_id, int32 participant_count) {
-  Channel *c = get_channel(channel_id);
-  if (c == nullptr || c->participant_count == participant_count) {
-    return;
-  }
-
-  c->participant_count = participant_count;
-  c->is_changed = true;
-  update_channel(c, channel_id);
-
-  auto channel_full = get_channel_full(channel_id, true, "on_update_channel_participant_count");
-  if (channel_full != nullptr && channel_full->participant_count != participant_count) {
-    if (channel_full->administrator_count > participant_count) {
-      channel_full->administrator_count = participant_count;
-    }
-    channel_full->participant_count = participant_count;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_participant_count");
-  }
-}
-
-void ChatManager::on_update_channel_editable_username(ChannelId channel_id, string &&username) {
-  Channel *c = get_channel(channel_id);
-  CHECK(c != nullptr);
-  on_update_channel_usernames(c, channel_id, c->usernames.change_editable_username(std::move(username)));
-  update_channel(c, channel_id);
-}
-
-void ChatManager::on_update_channel_usernames(ChannelId channel_id, Usernames &&usernames) {
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id;
-    return;
-  }
-
-  Channel *c = get_channel_force(channel_id, "on_update_channel_usernames");
-  if (c != nullptr) {
-    on_update_channel_usernames(c, channel_id, std::move(usernames));
-    update_channel(c, channel_id);
-  } else {
-    LOG(INFO) << "Ignore update channel usernames about unknown " << channel_id;
-  }
-}
-
-void ChatManager::on_update_channel_usernames(Channel *c, ChannelId channel_id, Usernames &&usernames) {
-  if (c->usernames != usernames) {
-    td_->dialog_manager_->on_dialog_usernames_updated(DialogId(channel_id), c->usernames, usernames);
-    td_->messages_manager_->on_dialog_usernames_updated(DialogId(channel_id), c->usernames, usernames);
-    if (c->is_update_supergroup_sent) {
-      on_channel_usernames_changed(c, channel_id, c->usernames, usernames);
-    }
-
-    c->usernames = std::move(usernames);
-    c->is_username_changed = true;
-    c->is_changed = true;
-  } else {
-    td_->dialog_manager_->on_dialog_usernames_received(DialogId(channel_id), usernames, false);
-  }
-}
-
-void ChatManager::on_channel_usernames_changed(const Channel *c, ChannelId channel_id, const Usernames &old_usernames,
-                                               const Usernames &new_usernames) {
-  bool have_channel_full = get_channel_full(channel_id) != nullptr;
-  if (!old_usernames.has_first_username() || !new_usernames.has_first_username()) {
-    // moving channel from private to public can change availability of chat members
-    invalidate_channel_full(channel_id, !c->is_slow_mode_enabled, "on_channel_usernames_changed");
-  }
-
-  // must not load ChannelFull, because must not change the Channel
-  CHECK(have_channel_full == (get_channel_full(channel_id) != nullptr));
-}
-
-void ChatManager::on_update_channel_description(ChannelId channel_id, string &&description) {
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_description");
-  if (channel_full == nullptr) {
-    return;
-  }
-  if (channel_full->description != description) {
-    channel_full->description = std::move(description);
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_description");
-    td_->group_call_manager_->on_update_dialog_about(DialogId(channel_id), channel_full->description, true);
-  }
-}
-
-void ChatManager::on_update_channel_sticker_set(ChannelId channel_id, StickerSetId sticker_set_id) {
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_sticker_set");
-  if (channel_full == nullptr) {
-    return;
-  }
-  if (channel_full->sticker_set_id != sticker_set_id) {
-    channel_full->sticker_set_id = sticker_set_id;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_sticker_set");
-  }
-}
-
-void ChatManager::on_update_channel_emoji_sticker_set(ChannelId channel_id, StickerSetId sticker_set_id) {
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_emoji_sticker_set");
-  if (channel_full == nullptr) {
-    return;
-  }
-  if (channel_full->emoji_sticker_set_id != sticker_set_id) {
-    channel_full->emoji_sticker_set_id = sticker_set_id;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_emoji_sticker_set");
-  }
-}
-
-void ChatManager::on_update_channel_unrestrict_boost_count(ChannelId channel_id, int32 unrestrict_boost_count) {
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_unrestrict_boost_count");
-  if (channel_full == nullptr) {
-    return;
-  }
-  if (channel_full->unrestrict_boost_count != unrestrict_boost_count) {
-    channel_full->unrestrict_boost_count = unrestrict_boost_count;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_unrestrict_boost_count");
-  }
-}
-
-void ChatManager::on_update_channel_gift_count(ChannelId channel_id, int32 gift_count, bool is_added) {
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_gift_count");
-  if (channel_full == nullptr) {
-    return;
-  }
-  if (is_added) {
-    gift_count = max(0, channel_full->gift_count + gift_count);
-  } else if (gift_count < 0) {
-    LOG(ERROR) << "Receive " << gift_count << " as gift count with " << channel_id;
-    gift_count = 0;
-  }
-  if (channel_full->gift_count != gift_count) {
-    channel_full->gift_count = gift_count;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_gift_count");
-  }
-}
-
-void ChatManager::on_update_channel_linked_channel_id(ChannelId channel_id, ChannelId group_channel_id) {
-  if (channel_id.is_valid()) {
-    auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_linked_channel_id 1");
-    on_update_channel_full_linked_channel_id(channel_full, channel_id, group_channel_id);
-    if (channel_full != nullptr) {
-      update_channel_full(channel_full, channel_id, "on_update_channel_linked_channel_id 3");
-    }
-  }
-  if (group_channel_id.is_valid()) {
-    auto channel_full = get_channel_full_force(group_channel_id, true, "on_update_channel_linked_channel_id 2");
-    on_update_channel_full_linked_channel_id(channel_full, group_channel_id, channel_id);
-    if (channel_full != nullptr) {
-      update_channel_full(channel_full, group_channel_id, "on_update_channel_linked_channel_id 4");
-    }
-  }
-}
-
-void ChatManager::on_update_channel_location(ChannelId channel_id, const DialogLocation &location) {
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_location");
-  if (channel_full != nullptr) {
-    on_update_channel_full_location(channel_full, channel_id, location);
-    update_channel_full(channel_full, channel_id, "on_update_channel_location");
-  }
-}
-
-void ChatManager::on_update_channel_slow_mode_delay(ChannelId channel_id, int32 slow_mode_delay,
-                                                    Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_slow_mode_delay");
-  if (channel_full != nullptr) {
-    on_update_channel_full_slow_mode_delay(channel_full, channel_id, slow_mode_delay, 0);
-    update_channel_full(channel_full, channel_id, "on_update_channel_slow_mode_delay");
-  }
-  promise.set_value(Unit());
-}
-
-void ChatManager::on_update_channel_slow_mode_next_send_date(ChannelId channel_id, int32 slow_mode_next_send_date) {
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_slow_mode_next_send_date");
-  if (channel_full != nullptr) {
-    on_update_channel_full_slow_mode_next_send_date(channel_full, slow_mode_next_send_date);
-    update_channel_full(channel_full, channel_id, "on_update_channel_slow_mode_next_send_date");
-  }
-}
-
-void ChatManager::on_update_channel_bot_user_ids(ChannelId channel_id, vector<UserId> &&bot_user_ids) {
-  CHECK(channel_id.is_valid());
-  if (!have_channel(channel_id)) {
-    LOG(ERROR) << channel_id << " not found";
-    return;
-  }
-
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_bot_user_ids");
-  if (channel_full == nullptr) {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_bots_updated, DialogId(channel_id),
-                       std::move(bot_user_ids), false);
-    return;
-  }
-  on_update_channel_full_bot_user_ids(channel_full, channel_id, std::move(bot_user_ids));
-  update_channel_full(channel_full, channel_id, "on_update_channel_bot_user_ids");
-}
-
-void ChatManager::on_update_channel_full_bot_user_ids(ChannelFull *channel_full, ChannelId channel_id,
-                                                      vector<UserId> &&bot_user_ids) {
-  CHECK(channel_full != nullptr);
-  send_closure_later(G()->messages_manager(), &MessagesManager::on_dialog_bots_updated, DialogId(channel_id),
-                     bot_user_ids, false);
-  if (channel_full->bot_user_ids != bot_user_ids) {
-    channel_full->bot_user_ids = std::move(bot_user_ids);
-    channel_full->need_save_to_database = true;
-  }
-}
-
-void ChatManager::on_update_channel_is_all_history_available(ChannelId channel_id, bool is_all_history_available,
-                                                             Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_is_all_history_available");
-  if (channel_full != nullptr && channel_full->is_all_history_available != is_all_history_available) {
-    channel_full->is_all_history_available = is_all_history_available;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_is_all_history_available");
-  }
-  promise.set_value(Unit());
-}
-
-void ChatManager::on_update_channel_can_have_sponsored_messages(ChannelId channel_id, bool can_have_sponsored_messages,
-                                                                Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_can_have_sponsored_messages");
-  if (channel_full != nullptr && channel_full->can_have_sponsored_messages != can_have_sponsored_messages) {
-    channel_full->can_have_sponsored_messages = can_have_sponsored_messages;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_can_have_sponsored_messages");
-  }
-  promise.set_value(Unit());
-}
-
-void ChatManager::on_update_channel_has_hidden_participants(ChannelId channel_id, bool has_hidden_participants,
-                                                            Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_has_hidden_participants");
-  if (channel_full != nullptr && channel_full->has_hidden_participants != has_hidden_participants) {
-    channel_full->has_hidden_participants = has_hidden_participants;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_has_hidden_participants");
-  }
-  promise.set_value(Unit());
-}
-
-void ChatManager::on_update_channel_has_aggressive_anti_spam_enabled(ChannelId channel_id,
-                                                                     bool has_aggressive_anti_spam_enabled,
-                                                                     Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(channel_id.is_valid());
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_has_aggressive_anti_spam_enabled");
-  if (channel_full != nullptr && channel_full->has_aggressive_anti_spam_enabled != has_aggressive_anti_spam_enabled) {
-    channel_full->has_aggressive_anti_spam_enabled = has_aggressive_anti_spam_enabled;
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_has_aggressive_anti_spam_enabled");
-  }
-  promise.set_value(Unit());
-}
-
-void ChatManager::on_update_channel_has_pinned_stories(ChannelId channel_id, bool has_pinned_stories) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id;
-    return;
-  }
-
-  ChannelFull *channel_full = get_channel_full_force(channel_id, true, "on_update_channel_has_pinned_stories");
-  if (channel_full == nullptr || channel_full->has_pinned_stories == has_pinned_stories) {
-    return;
-  }
-  channel_full->has_pinned_stories = has_pinned_stories;
-  channel_full->is_changed = true;
-  update_channel_full(channel_full, channel_id, "on_update_channel_has_pinned_stories");
-}
-
-void ChatManager::on_update_channel_default_permissions(ChannelId channel_id, RestrictedRights default_permissions) {
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id;
-    return;
-  }
-
-  Channel *c = get_channel_force(channel_id, "on_update_channel_default_permissions");
-  if (c != nullptr) {
-    on_update_channel_default_permissions(c, channel_id, std::move(default_permissions));
-    update_channel(c, channel_id);
-  } else {
-    LOG(INFO) << "Ignore update channel default permissions about unknown " << channel_id;
-  }
-}
-
-FileSourceId ChatManager::get_chat_full_file_source_id(ChatId chat_id) {
-  if (!chat_id.is_valid()) {
-    return FileSourceId();
-  }
-
-  auto chat_full = get_chat_full(chat_id);
-  if (chat_full != nullptr) {
-    VLOG(file_references) << "Don't need to create file source for full " << chat_id;
-    // chat full was already added, source ID was registered and shouldn't be needed
-    return chat_full->is_update_chat_full_sent ? FileSourceId() : chat_full->file_source_id;
-  }
-
-  auto &source_id = chat_full_file_source_ids_[chat_id];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_chat_full_file_source(chat_id);
-  }
-  VLOG(file_references) << "Return " << source_id << " for full " << chat_id;
-  return source_id;
-}
-
-FileSourceId ChatManager::get_channel_full_file_source_id(ChannelId channel_id) {
-  if (!channel_id.is_valid()) {
-    return FileSourceId();
-  }
-
-  auto channel_full = get_channel_full(channel_id);
-  if (channel_full != nullptr) {
-    VLOG(file_references) << "Don't need to create file source for full " << channel_id;
-    // channel full was already added, source ID was registered and shouldn't be needed
-    return channel_full->is_update_channel_full_sent ? FileSourceId() : channel_full->file_source_id;
-  }
-
-  auto &source_id = channel_full_file_source_ids_[channel_id];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_channel_full_file_source(channel_id);
-  }
-  VLOG(file_references) << "Return " << source_id << " for full " << channel_id;
-  return source_id;
-}
-
-void ChatManager::create_new_chat(const vector<UserId> &user_ids, const string &title, MessageTtl message_ttl,
-                                  Promise<td_api::object_ptr<td_api::createdBasicGroupChat>> &&promise) {
-  auto new_title = clean_name(title, MAX_TITLE_LENGTH);
-  if (new_title.empty()) {
-    return promise.set_error(Status::Error(400, "Title must be non-empty"));
-  }
-
-  vector<telegram_api::object_ptr<telegram_api::InputUser>> input_users;
-  for (auto user_id : user_ids) {
-    TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-    input_users.push_back(std::move(input_user));
-  }
-
-  td_->create_handler<CreateChatQuery>(std::move(promise))->send(std::move(input_users), new_title, message_ttl);
-}
-
-void ChatManager::create_new_channel(const string &title, bool is_forum, bool is_megagroup, const string &description,
-                                     const DialogLocation &location, bool for_import, MessageTtl message_ttl,
-                                     Promise<td_api::object_ptr<td_api::chat>> &&promise) {
-  auto new_title = clean_name(title, MAX_TITLE_LENGTH);
-  if (new_title.empty()) {
-    return promise.set_error(Status::Error(400, "Title must be non-empty"));
-  }
-
-  td_->create_handler<CreateChannelQuery>(std::move(promise))
-      ->send(new_title, is_forum, is_megagroup, strip_empty_characters(description, MAX_DESCRIPTION_LENGTH), location,
-             for_import, message_ttl);
-}
-
-bool ChatManager::have_chat(ChatId chat_id) const {
-  return chats_.count(chat_id) > 0;
-}
-
-const ChatManager::Chat *ChatManager::get_chat(ChatId chat_id) const {
-  return chats_.get_pointer(chat_id);
-}
-
-ChatManager::Chat *ChatManager::get_chat(ChatId chat_id) {
-  return chats_.get_pointer(chat_id);
-}
-
-ChatManager::Chat *ChatManager::add_chat(ChatId chat_id) {
-  CHECK(chat_id.is_valid());
-  auto &chat_ptr = chats_[chat_id];
-  if (chat_ptr == nullptr) {
-    chat_ptr = make_unique<Chat>();
-  }
-  return chat_ptr.get();
-}
-
-bool ChatManager::get_chat(ChatId chat_id, int left_tries, Promise<Unit> &&promise) {
-  if (!chat_id.is_valid()) {
-    promise.set_error(Status::Error(400, "Invalid basic group identifier"));
-    return false;
-  }
-
-  if (!have_chat(chat_id)) {
-    if (left_tries > 2 && G()->use_chat_info_database()) {
-      send_closure_later(actor_id(this), &ChatManager::load_chat_from_database, nullptr, chat_id, std::move(promise));
-      return false;
-    }
-
-    if (left_tries > 1) {
-      get_chat_queries_.add_query(chat_id.get(), std::move(promise), "get_chat");
-      return false;
-    }
-
-    promise.set_error(Status::Error(400, "Group not found"));
-    return false;
-  }
-
-  promise.set_value(Unit());
-  return true;
-}
-
-void ChatManager::reload_chat(ChatId chat_id, Promise<Unit> &&promise, const char *source) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (!chat_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid basic group identifier"));
-  }
-
-  get_chat_queries_.add_query(chat_id.get(), std::move(promise), source);
-}
-
-const ChatManager::ChatFull *ChatManager::get_chat_full(ChatId chat_id) const {
-  return chats_full_.get_pointer(chat_id);
-}
-
-ChatManager::ChatFull *ChatManager::get_chat_full(ChatId chat_id) {
-  return chats_full_.get_pointer(chat_id);
-}
-
-ChatManager::ChatFull *ChatManager::add_chat_full(ChatId chat_id) {
-  CHECK(chat_id.is_valid());
-  auto &chat_full_ptr = chats_full_[chat_id];
-  if (chat_full_ptr == nullptr) {
-    chat_full_ptr = make_unique<ChatFull>();
-  }
-  return chat_full_ptr.get();
-}
-
-bool ChatManager::is_chat_full_outdated(const ChatFull *chat_full, const Chat *c, ChatId chat_id,
-                                        bool only_participants) const {
-  CHECK(c != nullptr);
-  CHECK(chat_full != nullptr);
-  if (!c->is_active && chat_full->version == -1) {
-    return false;
-  }
-
-  if (chat_full->version != c->version) {
-    LOG(INFO) << "Have outdated ChatFull " << chat_id << " with current version " << chat_full->version
-              << " and chat version " << c->version;
-    return true;
-  }
-
-  if (!only_participants && c->is_active && c->status.can_manage_invite_links() && !chat_full->invite_link.is_valid()) {
-    LOG(INFO) << "Have outdated invite link in " << chat_id;
-    return true;
-  }
-
-  if (!only_participants &&
-      !is_same_dialog_photo(td_->file_manager_.get(), DialogId(chat_id), chat_full->photo, c->photo, false)) {
-    LOG(INFO) << "Have outdated chat photo in " << chat_id;
-    return true;
-  }
-
-  LOG(DEBUG) << "Full " << chat_id << " is up-to-date with version " << chat_full->version << " and photos " << c->photo
-             << '/' << chat_full->photo;
-  return false;
-}
-
-void ChatManager::load_chat_full(ChatId chat_id, bool force, Promise<Unit> &&promise, const char *source) {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Group not found"));
-  }
-
-  auto chat_full = get_chat_full_force(chat_id, source);
-  if (chat_full == nullptr) {
-    LOG(INFO) << "Full " << chat_id << " not found";
-    return send_get_chat_full_query(chat_id, std::move(promise), source);
-  }
-
-  if (is_chat_full_outdated(chat_full, c, chat_id, false)) {
-    LOG(INFO) << "Have outdated full " << chat_id;
-    if (td_->auth_manager_->is_bot() && !force) {
-      return send_get_chat_full_query(chat_id, std::move(promise), source);
-    }
-
-    send_get_chat_full_query(chat_id, Auto(), source);
-  }
-
-  vector<DialogId> participant_dialog_ids;
-  for (const auto &dialog_participant : chat_full->participants) {
-    participant_dialog_ids.push_back(dialog_participant.dialog_id_);
-  }
-  td_->story_manager_->on_view_dialog_active_stories(std::move(participant_dialog_ids));
-
-  promise.set_value(Unit());
-}
-
-void ChatManager::reload_chat_full(ChatId chat_id, Promise<Unit> &&promise, const char *source) {
-  send_get_chat_full_query(chat_id, std::move(promise), source);
-}
-
-void ChatManager::send_get_chat_full_query(ChatId chat_id, Promise<Unit> &&promise, const char *source) {
-  LOG(INFO) << "Get full " << chat_id << " from " << source;
-  if (!chat_id.is_valid()) {
-    return promise.set_error(Status::Error(500, "Invalid chat_id"));
-  }
-  auto send_query = PromiseCreator::lambda([td = td_, chat_id](Result<Promise<Unit>> &&promise) {
-    if (promise.is_ok() && !G()->close_flag()) {
-      td->create_handler<GetFullChatQuery>(promise.move_as_ok())->send(chat_id);
-    }
-  });
-
-  get_chat_full_queries_.add_query(DialogId(chat_id).get(), std::move(send_query), std::move(promise));
-}
-
-int32 ChatManager::get_chat_date(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return 0;
-  }
-  return c->date;
-}
-
-int32 ChatManager::get_chat_participant_count(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return 0;
-  }
-  return c->participant_count;
-}
-
-bool ChatManager::get_chat_is_active(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return c->is_active;
-}
-
-ChannelId ChatManager::get_chat_migrated_to_channel_id(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return ChannelId();
-  }
-  return c->migrated_to_channel_id;
-}
-
-DialogParticipantStatus ChatManager::get_chat_status(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return DialogParticipantStatus::Banned(0);
-  }
-  return get_chat_status(c);
-}
-
-DialogParticipantStatus ChatManager::get_chat_status(const Chat *c) {
-  if (!c->is_active) {
-    return DialogParticipantStatus::Banned(0);
-  }
-  return c->status;
-}
-
-DialogParticipantStatus ChatManager::get_chat_permissions(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return DialogParticipantStatus::Banned(0);
-  }
-  return get_chat_permissions(c);
-}
-
-DialogParticipantStatus ChatManager::get_chat_permissions(const Chat *c) const {
-  if (!c->is_active) {
-    return DialogParticipantStatus::Banned(0);
-  }
-  return c->status.apply_restrictions(c->default_permissions, false, td_->auth_manager_->is_bot());
-}
-
-bool ChatManager::is_appointed_chat_administrator(ChatId chat_id) const {
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return c->status.is_administrator();
-}
-
-bool ChatManager::is_channel_public(ChannelId channel_id) const {
-  return is_channel_public(get_channel(channel_id));
-}
-
-bool ChatManager::is_channel_public(const Channel *c) {
-  return c != nullptr && (c->usernames.has_first_username() || c->has_location);
-}
-
-ChannelType ChatManager::get_channel_type(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    auto min_channel = get_min_channel(channel_id);
-    if (min_channel != nullptr) {
-      return min_channel->is_megagroup_ ? ChannelType::Megagroup : ChannelType::Broadcast;
-    }
-    return ChannelType::Unknown;
-  }
-  return get_channel_type(c);
-}
-
-ChannelType ChatManager::get_channel_type(const Channel *c) {
-  if (c->is_megagroup) {
-    return ChannelType::Megagroup;
-  }
-  return ChannelType::Broadcast;
-}
-
-bool ChatManager::is_broadcast_channel(ChannelId channel_id) const {
-  return get_channel_type(channel_id) == ChannelType::Broadcast;
-}
-
-bool ChatManager::is_megagroup_channel(ChannelId channel_id) const {
-  return get_channel_type(channel_id) == ChannelType::Megagroup;
-}
-
-bool ChatManager::is_forum_channel(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return c->is_forum;
-}
-
-int32 ChatManager::get_channel_date(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return 0;
-  }
-  return c->date;
-}
-
-DialogParticipantStatus ChatManager::get_channel_status(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return DialogParticipantStatus::Banned(0);
-  }
-  return get_channel_status(c);
-}
-
-DialogParticipantStatus ChatManager::get_channel_status(const Channel *c) {
-  c->status.update_restrictions();
-  return c->status;
-}
-
-DialogParticipantStatus ChatManager::get_channel_permissions(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return DialogParticipantStatus::Banned(0);
-  }
-  return get_channel_permissions(channel_id, c);
-}
-
-DialogParticipantStatus ChatManager::get_channel_permissions(ChannelId channel_id, const Channel *c) const {
-  c->status.update_restrictions();
-  bool is_booster = false;
-  if (!td_->auth_manager_->is_bot() && c->is_megagroup) {
-    auto channel_full = get_channel_full_const(channel_id);
-    if (channel_full == nullptr || (channel_full->unrestrict_boost_count > 0 &&
-                                    channel_full->boost_count >= channel_full->unrestrict_boost_count)) {
-      is_booster = true;
-    }
-  }
-  return c->status.apply_restrictions(c->default_permissions, is_booster, td_->auth_manager_->is_bot());
-}
-
-int32 ChatManager::get_channel_participant_count(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return 0;
-  }
-  return c->participant_count;
-}
-
-bool ChatManager::get_channel_is_verified(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return c->is_verified;
-}
-
-td_api::object_ptr<td_api::verificationStatus> ChatManager::get_channel_verification_status_object(
-    ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return nullptr;
-  }
-  return get_channel_verification_status_object(c);
-}
-
-td_api::object_ptr<td_api::verificationStatus> ChatManager::get_channel_verification_status_object(
-    const Channel *c) const {
-  return get_verification_status_object(td_, c->is_verified, c->is_scam, c->is_fake, c->bot_verification_icon);
-}
-
-bool ChatManager::get_channel_sign_messages(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return get_channel_sign_messages(c);
-}
-
-bool ChatManager::get_channel_sign_messages(const Channel *c) {
-  return c->sign_messages;
-}
-
-bool ChatManager::get_channel_show_message_sender(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return get_channel_show_message_sender(c);
-}
-
-bool ChatManager::get_channel_show_message_sender(const Channel *c) {
-  return c->show_message_sender;
-}
-
-bool ChatManager::get_channel_has_linked_channel(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return get_channel_has_linked_channel(c);
-}
-
-bool ChatManager::get_channel_has_linked_channel(const Channel *c) {
-  return c->has_linked_channel;
-}
-
-bool ChatManager::get_channel_can_be_deleted(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return get_channel_can_be_deleted(c);
-}
-
-bool ChatManager::get_channel_can_be_deleted(const Channel *c) {
-  return c->can_be_deleted;
-}
-
-bool ChatManager::get_channel_join_to_send(const Channel *c) {
-  return c->join_to_send || !c->is_megagroup || !c->has_linked_channel;
-}
-
-bool ChatManager::get_channel_join_request(ChannelId channel_id) const {
-  auto c = get_channel(channel_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return get_channel_join_request(c);
-}
-
-bool ChatManager::get_channel_join_request(const Channel *c) {
-  return c->join_request && c->is_megagroup && (is_channel_public(c) || c->has_linked_channel);
-}
-
-ChannelId ChatManager::get_channel_linked_channel_id(ChannelId channel_id, const char *source) {
-  auto channel_full = get_channel_full_const(channel_id);
-  if (channel_full == nullptr) {
-    channel_full = get_channel_full_force(channel_id, true, source);
-    if (channel_full == nullptr) {
-      return ChannelId();
-    }
-  }
-  return channel_full->linked_channel_id;
-}
-
-int32 ChatManager::get_channel_slow_mode_delay(ChannelId channel_id, const char *source) {
-  auto channel_full = get_channel_full_const(channel_id);
-  if (channel_full == nullptr) {
-    channel_full = get_channel_full_force(channel_id, true, source);
-    if (channel_full == nullptr) {
-      return 0;
-    }
-  }
-  return channel_full->slow_mode_delay;
-}
-
-bool ChatManager::get_channel_effective_has_hidden_participants(ChannelId channel_id, const char *source) {
-  auto c = get_channel_force(channel_id, "get_channel_effective_has_hidden_participants");
-  if (c == nullptr) {
-    return true;
-  }
-  if (get_channel_status(c).is_administrator()) {
-    return false;
-  }
-
-  auto channel_full = get_channel_full_const(channel_id);
-  if (channel_full == nullptr) {
-    channel_full = get_channel_full_force(channel_id, true, source);
-    if (channel_full == nullptr) {
-      return true;
-    }
-  }
-  return channel_full->has_hidden_participants || !channel_full->can_get_participants;
-}
-
-int32 ChatManager::get_channel_my_boost_count(ChannelId channel_id) {
-  auto channel_full = get_channel_full_const(channel_id);
-  if (channel_full == nullptr) {
-    channel_full = get_channel_full_force(channel_id, true, "get_channel_my_boost_count");
-    if (channel_full == nullptr) {
-      return 0;
-    }
-  }
-  return channel_full->boost_count;
-}
-
-bool ChatManager::have_channel(ChannelId channel_id) const {
-  return channels_.count(channel_id) > 0;
-}
-
-bool ChatManager::have_min_channel(ChannelId channel_id) const {
-  return min_channels_.count(channel_id) > 0;
-}
-
-const MinChannel *ChatManager::get_min_channel(ChannelId channel_id) const {
-  return min_channels_.get_pointer(channel_id);
-}
-
-void ChatManager::add_min_channel(ChannelId channel_id, const MinChannel &min_channel) {
-  if (have_channel(channel_id) || have_min_channel(channel_id) || !channel_id.is_valid()) {
-    return;
-  }
-  min_channels_.set(channel_id, td::make_unique<MinChannel>(min_channel));
-}
-
-const ChatManager::Channel *ChatManager::get_channel(ChannelId channel_id) const {
-  return channels_.get_pointer(channel_id);
-}
-
-ChatManager::Channel *ChatManager::get_channel(ChannelId channel_id) {
-  return channels_.get_pointer(channel_id);
-}
-
-ChatManager::Channel *ChatManager::add_channel(ChannelId channel_id, const char *source) {
-  CHECK(channel_id.is_valid());
-  auto &channel_ptr = channels_[channel_id];
-  if (channel_ptr == nullptr) {
-    channel_ptr = make_unique<Channel>();
-    min_channels_.erase(channel_id);
-  }
-  return channel_ptr.get();
-}
-
-bool ChatManager::get_channel(ChannelId channel_id, int left_tries, Promise<Unit> &&promise) {
-  if (!channel_id.is_valid()) {
-    promise.set_error(Status::Error(400, "Invalid supergroup identifier"));
-    return false;
-  }
-
-  if (!have_channel(channel_id)) {
-    if (left_tries > 2 && G()->use_chat_info_database()) {
-      send_closure_later(actor_id(this), &ChatManager::load_channel_from_database, nullptr, channel_id,
-                         std::move(promise));
-      return false;
-    }
-
-    if (left_tries > 1 && td_->auth_manager_->is_bot()) {
-      get_channel_queries_.add_query(channel_id.get(), std::move(promise), "get_channel");
-      return false;
-    }
-
-    promise.set_error(Status::Error(400, "Supergroup not found"));
-    return false;
-  }
-
-  promise.set_value(Unit());
-  return true;
-}
-
-void ChatManager::reload_channel(ChannelId channel_id, Promise<Unit> &&promise, const char *source) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (!channel_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid supergroup identifier"));
-  }
-
-  have_channel_force(channel_id, source);
-  auto input_channel = get_input_channel(channel_id);
-  if (input_channel == nullptr) {
-    // requests with 0 access_hash must not be merged
-    td_->create_handler<GetChannelsQuery>(std::move(promise))
-        ->send(telegram_api::make_object<telegram_api::inputChannel>(channel_id.get(), 0));
-    return;
-  }
-
-  get_channel_queries_.add_query(channel_id.get(), std::move(promise), source);
-}
-
-const ChatManager::ChannelFull *ChatManager::get_channel_full_const(ChannelId channel_id) const {
-  return channels_full_.get_pointer(channel_id);
-}
-
-const ChatManager::ChannelFull *ChatManager::get_channel_full(ChannelId channel_id) const {
-  return channels_full_.get_pointer(channel_id);
-}
-
-ChatManager::ChannelFull *ChatManager::get_channel_full(ChannelId channel_id, bool only_local, const char *source) {
-  auto channel_full = channels_full_.get_pointer(channel_id);
-  if (channel_full == nullptr) {
-    return nullptr;
-  }
-
-  if (!only_local && channel_full->is_expired() && !td_->auth_manager_->is_bot()) {
-    send_get_channel_full_query(channel_full, channel_id, Auto(), source);
-  }
-
-  return channel_full;
-}
-
-ChatManager::ChannelFull *ChatManager::add_channel_full(ChannelId channel_id) {
-  CHECK(channel_id.is_valid());
-  auto &channel_full_ptr = channels_full_[channel_id];
-  if (channel_full_ptr == nullptr) {
-    channel_full_ptr = make_unique<ChannelFull>();
-  }
-  return channel_full_ptr.get();
-}
-
-void ChatManager::load_channel_full(ChannelId channel_id, bool force, Promise<Unit> &&promise, const char *source) {
-  auto channel_full = get_channel_full_force(channel_id, true, source);
-  if (channel_full == nullptr) {
-    return send_get_channel_full_query(channel_full, channel_id, std::move(promise), source);
-  }
-  if (channel_full->is_expired()) {
-    if (td_->auth_manager_->is_bot() && !force) {
-      return send_get_channel_full_query(channel_full, channel_id, std::move(promise), "load expired channel_full");
-    }
-
-    Promise<Unit> new_promise;
-    if (promise) {
-      new_promise = PromiseCreator::lambda([channel_id](Result<Unit> result) {
-        if (result.is_error()) {
-          LOG(INFO) << "Failed to reload expired " << channel_id << ": " << result.error();
-        } else {
-          LOG(INFO) << "Reloaded expired " << channel_id;
-        }
-      });
-    }
-    send_get_channel_full_query(channel_full, channel_id, std::move(new_promise), "load expired channel_full");
-  }
-
-  promise.set_value(Unit());
-}
-
-void ChatManager::reload_channel_full(ChannelId channel_id, Promise<Unit> &&promise, const char *source) {
-  send_get_channel_full_query(get_channel_full(channel_id, true, "reload_channel_full"), channel_id, std::move(promise),
-                              source);
-}
-
-void ChatManager::send_get_channel_full_query(ChannelFull *channel_full, ChannelId channel_id, Promise<Unit> &&promise,
-                                              const char *source) {
-  auto input_channel = get_input_channel(channel_id);
-  if (input_channel == nullptr) {
-    return promise.set_error(Status::Error(400, "Supergroup not found"));
-  }
-
-  if (!have_input_peer_channel(channel_id, AccessRights::Read)) {
-    return promise.set_error(Status::Error(400, "Can't access the chat"));
-  }
-
-  if (channel_full != nullptr) {
-    if (!promise) {
-      if (channel_full->repair_request_version != 0) {
-        LOG(INFO) << "Skip get full " << channel_id << " request from " << source;
-        return;
-      }
-      channel_full->repair_request_version = channel_full->speculative_version;
-    } else {
-      channel_full->repair_request_version = std::numeric_limits<uint32>::max();
-    }
-  }
-
-  LOG(INFO) << "Get full " << channel_id << " from " << source;
-  auto send_query = PromiseCreator::lambda(
-      [td = td_, channel_id, input_channel = std::move(input_channel)](Result<Promise<Unit>> &&promise) mutable {
-        if (promise.is_ok() && !G()->close_flag()) {
-          td->create_handler<GetFullChannelQuery>(promise.move_as_ok())->send(channel_id, std::move(input_channel));
-        }
-      });
-  get_chat_full_queries_.add_query(DialogId(channel_id).get(), std::move(send_query), std::move(promise));
-}
-
-void ChatManager::get_chat_participant(ChatId chat_id, UserId user_id, Promise<DialogParticipant> &&promise) {
-  LOG(INFO) << "Trying to get " << user_id << " as member of " << chat_id;
-
-  auto c = get_chat(chat_id);
-  if (c == nullptr) {
-    return promise.set_error(Status::Error(400, "Group not found"));
-  }
-
-  if (td_->auth_manager_->is_bot() && user_id == td_->user_manager_->get_my_id()) {
-    // bots don't need inviter information
-    reload_chat(chat_id, Auto(), "get_chat_participant");
-    return promise.set_value(DialogParticipant{DialogId(user_id), user_id, c->date, c->status});
-  }
-
-  auto chat_full = get_chat_full_force(chat_id, "get_chat_participant");
-  if (chat_full == nullptr || (td_->auth_manager_->is_bot() && is_chat_full_outdated(chat_full, c, chat_id, true))) {
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), chat_id, user_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-          TRY_STATUS_PROMISE(promise, std::move(result));
-          send_closure(actor_id, &ChatManager::finish_get_chat_participant, chat_id, user_id, std::move(promise));
-        });
-    send_get_chat_full_query(chat_id, std::move(query_promise), "get_chat_participant");
-    return;
-  }
-
-  if (is_chat_full_outdated(chat_full, c, chat_id, true)) {
-    send_get_chat_full_query(chat_id, Auto(), "get_chat_participant lazy");
-  }
-
-  finish_get_chat_participant(chat_id, user_id, std::move(promise));
-}
-
-void ChatManager::finish_get_chat_participant(ChatId chat_id, UserId user_id, Promise<DialogParticipant> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  const auto *participant = get_chat_participant(chat_id, user_id);
-  if (participant == nullptr) {
-    return promise.set_value(DialogParticipant::left(DialogId(user_id)));
-  }
-
-  promise.set_value(DialogParticipant(*participant));
-}
-
-void ChatManager::on_update_channel_administrator_count(ChannelId channel_id, int32 administrator_count) {
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_administrator_count");
-  if (channel_full != nullptr && channel_full->administrator_count != administrator_count) {
-    channel_full->administrator_count = administrator_count;
-    channel_full->is_changed = true;
-
-    if (channel_full->participant_count < channel_full->administrator_count) {
-      channel_full->participant_count = channel_full->administrator_count;
-
-      auto c = get_channel(channel_id);
-      if (c != nullptr && c->participant_count != channel_full->participant_count) {
-        c->participant_count = channel_full->participant_count;
-        c->is_changed = true;
-        update_channel(c, channel_id);
-      }
-    }
-
-    update_channel_full(channel_full, channel_id, "on_update_channel_administrator_count");
-  }
-}
-
-void ChatManager::on_update_channel_bot_commands(ChannelId channel_id, BotCommands &&bot_commands) {
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_bot_commands");
-  if (channel_full != nullptr &&
-      BotCommands::update_all_bot_commands(channel_full->bot_commands, std::move(bot_commands))) {
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_bot_commands");
-  }
-}
-
-void ChatManager::on_update_channel_permanent_invite_link(ChannelId channel_id, const DialogInviteLink &invite_link) {
-  auto channel_full = get_channel_full_force(channel_id, true, "on_update_channel_permanent_invite_link");
-  if (channel_full != nullptr && update_permanent_invite_link(channel_full->invite_link, invite_link)) {
-    channel_full->is_changed = true;
-    update_channel_full(channel_full, channel_id, "on_update_channel_permanent_invite_link");
-  }
-}
-
-void ChatManager::on_get_chat_empty(telegram_api::chatEmpty &chat, const char *source) {
-  ChatId chat_id(chat.id_);
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id << " from " << source;
-    return;
-  }
-
-  if (!have_chat(chat_id)) {
-    LOG(ERROR) << "Have no information about " << chat_id << " but received chatEmpty from " << source;
-  }
-}
-
-void ChatManager::on_get_chat(telegram_api::chat &chat, const char *source) {
-  auto debug_str = PSTRING() << " from " << source << " in " << oneline(to_string(chat));
-  ChatId chat_id(chat.id_);
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id << debug_str;
-    return;
-  }
-
-  DialogParticipantStatus status = [&] {
-    if (chat.creator_) {
-      return DialogParticipantStatus::Creator(!chat.left_, false, string());
-    } else if (chat.admin_rights_ != nullptr) {
-      return DialogParticipantStatus(false, std::move(chat.admin_rights_), string(), ChannelType::Unknown);
-    } else if (chat.left_) {
-      return DialogParticipantStatus::Left();
-    } else {
-      return DialogParticipantStatus::Member(0);
-    }
-  }();
-
-  ChannelId migrated_to_channel_id;
-  if (chat.migrated_to_ != nullptr) {
-    switch (chat.migrated_to_->get_id()) {
-      case telegram_api::inputChannelFromMessage::ID:
-      case telegram_api::inputChannelEmpty::ID:
-        LOG(ERROR) << "Receive invalid information about upgraded supergroup for " << chat_id << debug_str;
-        break;
-      case telegram_api::inputChannel::ID: {
-        auto input_channel = move_tl_object_as<telegram_api::inputChannel>(chat.migrated_to_);
-        migrated_to_channel_id = ChannelId(input_channel->channel_id_);
-        if (!have_channel_force(migrated_to_channel_id, source)) {
-          if (!migrated_to_channel_id.is_valid()) {
-            LOG(ERROR) << "Receive invalid " << migrated_to_channel_id << debug_str;
-          } else {
-            // temporarily create the channel
-            Channel *c = add_channel(migrated_to_channel_id, "on_get_chat");
-            c->access_hash = input_channel->access_hash_;
-            c->title = chat.title_;
-            c->status = DialogParticipantStatus::Left();
-            c->is_megagroup = true;
-
-            // we definitely need to call update_channel, because client should know about every added channel
-            update_channel(c, migrated_to_channel_id);
-
-            // get info about the channel
-            get_channel_queries_.add_query(migrated_to_channel_id.get(), Promise<Unit>(), "on_get_chat");
-          }
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  Chat *c = get_chat_force(chat_id, source);  // to load versions
-  if (c == nullptr) {
-    c = add_chat(chat_id);
-  }
-  on_update_chat_title(c, chat_id, std::move(chat.title_));
-  if (!status.is_left()) {
-    on_update_chat_participant_count(c, chat_id, chat.participants_count_, chat.version_, debug_str);
-  } else {
-    chat.photo_ = nullptr;
-  }
-  if (c->date != chat.date_) {
-    LOG_IF(ERROR, c->date != 0) << "Chat creation date has changed from " << c->date << " to " << chat.date_
-                                << debug_str;
-    c->date = chat.date_;
-    c->need_save_to_database = true;
-  }
-  on_update_chat_status(c, chat_id, std::move(status));
-  on_update_chat_default_permissions(c, chat_id, RestrictedRights(chat.default_banned_rights_, ChannelType::Unknown),
-                                     chat.version_);
-  on_update_chat_photo(c, chat_id, std::move(chat.photo_));
-  on_update_chat_active(c, chat_id, !chat.deactivated_);
-  on_update_chat_noforwards(c, chat_id, chat.noforwards_);
-  on_update_chat_migrated_to_channel_id(c, chat_id, migrated_to_channel_id);
-  LOG_IF(INFO, !c->is_active && !migrated_to_channel_id.is_valid()) << chat_id << " is deactivated" << debug_str;
-  if (c->cache_version != Chat::CACHE_VERSION) {
-    c->cache_version = Chat::CACHE_VERSION;
-    c->need_save_to_database = true;
-  }
-  c->is_received_from_server = true;
-  update_chat(c, chat_id);
-
-  td_->messages_manager_->on_update_dialog_group_call(DialogId(chat_id), chat.call_active_, !chat.call_not_empty_,
-                                                      "receive chat");
-}
-
-void ChatManager::on_get_chat_forbidden(telegram_api::chatForbidden &chat, const char *source) {
-  ChatId chat_id(chat.id_);
-  if (!chat_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << chat_id << " from " << source;
-    return;
-  }
-
-  bool is_uninited = get_chat_force(chat_id, source) == nullptr;
-  Chat *c = add_chat(chat_id);
-  on_update_chat_title(c, chat_id, std::move(chat.title_));
-  // chat participant count will be updated in on_update_chat_status
-  on_update_chat_photo(c, chat_id, nullptr);
-  if (c->date != 0) {
-    c->date = 0;  // removed in 38-th layer
-    c->need_save_to_database = true;
-  }
-  on_update_chat_status(c, chat_id, DialogParticipantStatus::Banned(0));
-  if (is_uninited) {
-    on_update_chat_active(c, chat_id, true);
-    on_update_chat_migrated_to_channel_id(c, chat_id, ChannelId());
-  } else {
-    // leave active and migrated to as is
-  }
-  if (c->cache_version != Chat::CACHE_VERSION) {
-    c->cache_version = Chat::CACHE_VERSION;
-    c->need_save_to_database = true;
-  }
-  c->is_received_from_server = true;
-  update_chat(c, chat_id);
-}
-
-void ChatManager::on_get_channel(telegram_api::channel &channel, const char *source) {
-  ChannelId channel_id(channel.id_);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id << " from " << source << ": " << to_string(channel);
-    return;
-  }
-
-  if (channel.flags_ == 0 && channel.access_hash_ == 0 && channel.title_.empty()) {
-    Channel *c = get_channel_force(channel_id, source);
-    if (c != nullptr) {
-      LOG(ERROR) << "Receive from " << source << " empty " << channel_id << ": " << to_string(channel) << ", have "
-                 << to_string(get_supergroup_object(channel_id, c));
-    }
-    if (c == nullptr && !have_min_channel(channel_id)) {
-      min_channels_.set(channel_id, td::make_unique<MinChannel>());
-    }
-    return;
-  }
-
-  bool is_min = channel.min_;
-  auto access_hash = channel.access_hash_;
-  bool has_linked_channel = channel.has_link_;
-  bool sign_messages = channel.signatures_;
-  bool join_to_send = channel.join_to_send_;
-  bool join_request = channel.join_request_;
-  bool is_slow_mode_enabled = channel.slowmode_enabled_;
-  bool is_megagroup = channel.megagroup_;
-  bool is_verified = channel.verified_;
-  bool is_scam = channel.scam_;
-  bool is_fake = channel.fake_;
-  bool is_gigagroup = channel.gigagroup_;
-  bool is_forum = channel.forum_;
-  bool have_participant_count = (channel.flags_ & telegram_api::channel::PARTICIPANTS_COUNT_MASK) != 0;
-  int32 participant_count = channel.participants_count_;
-  bool stories_available = channel.stories_max_id_ > 0;
-  bool stories_unavailable = channel.stories_unavailable_;
-  bool show_message_sender = channel.signature_profiles_;
-  auto boost_level = channel.level_;
-  auto paid_message_star_count = channel.send_paid_messages_stars_;
-
-  if (have_participant_count) {
-    auto channel_full = get_channel_full_const(channel_id);
-    if (channel_full != nullptr && channel_full->administrator_count > participant_count) {
-      participant_count = channel_full->administrator_count;
-    }
-  }
-
-  LOG_IF(ERROR, channel.broadcast_ == is_megagroup)
-      << "Receive wrong channel flag is_broadcast == is_megagroup == " << is_megagroup << " from " << source << ": "
-      << oneline(to_string(channel));
-
-  if (is_megagroup) {
-    LOG_IF(ERROR, sign_messages) << "Need to sign messages in the supergroup " << channel_id << " from " << source;
-    sign_messages = true;
-    show_message_sender = true;
-  } else {
-    LOG_IF(ERROR, is_slow_mode_enabled && channel_id.get() >= 8000000000)
-        << "Slow mode enabled in the " << channel_id << " from " << source;
-    LOG_IF(ERROR, is_gigagroup) << "Receive broadcast group as " << channel_id << " from " << source;
-    LOG_IF(ERROR, is_forum) << "Receive broadcast forum as " << channel_id << " from " << source;
-    is_slow_mode_enabled = false;
-    is_gigagroup = false;
-    is_forum = false;
-    paid_message_star_count = 0;
-  }
-  if (is_gigagroup) {
-    td_->suggested_action_manager_->remove_dialog_suggested_action(
-        SuggestedAction{SuggestedAction::Type::ConvertToGigagroup, DialogId(channel_id)});
-  }
-
-  if (is_min) {
-    Channel *c = get_channel_force(channel_id, source);
-    if (c != nullptr) {
-      LOG(DEBUG) << "Receive known min " << channel_id;
-
-      auto old_join_to_send = get_channel_join_to_send(c);
-      auto old_join_request = get_channel_join_request(c);
-      on_update_channel_title(c, channel_id, std::move(channel.title_));
-      on_update_channel_usernames(c, channel_id,
-                                  Usernames(std::move(channel.username_), std::move(channel.usernames_)));
-      if (!c->status.is_banned()) {
-        on_update_channel_photo(c, channel_id, std::move(channel.photo_));
-      }
-      on_update_channel_has_location(c, channel_id, channel.has_geo_);
-      on_update_channel_noforwards(c, channel_id, channel.noforwards_);
-      on_update_channel_emoji_status(c, channel_id, EmojiStatus::get_emoji_status(std::move(channel.emoji_status_)));
-
-      if (c->has_linked_channel != has_linked_channel || c->is_slow_mode_enabled != is_slow_mode_enabled ||
-          c->is_megagroup != is_megagroup || c->is_scam != is_scam || c->is_fake != is_fake ||
-          c->is_gigagroup != is_gigagroup || c->is_forum != is_forum || c->boost_level != boost_level ||
-          c->paid_message_star_count != paid_message_star_count) {
-        c->has_linked_channel = has_linked_channel;
-        c->is_slow_mode_enabled = is_slow_mode_enabled;
-        c->is_megagroup = is_megagroup;
-        c->is_scam = is_scam;
-        c->is_fake = is_fake;
-        c->is_gigagroup = is_gigagroup;
-        if (c->is_forum != is_forum) {
-          c->is_forum = is_forum;
-          send_closure_later(G()->messages_manager(), &MessagesManager::on_update_dialog_is_forum, DialogId(channel_id),
-                             is_forum);
-        }
-        c->boost_level = boost_level;
-        c->paid_message_star_count = paid_message_star_count;
-
-        c->is_changed = true;
-        invalidate_channel_full(channel_id, !c->is_slow_mode_enabled, "on_get_min_channel");
-      }
-      if (!td_->auth_manager_->is_bot()) {
-        auto restriction_reasons = get_restriction_reasons(std::move(channel.restriction_reason_));
-        if (restriction_reasons != c->restriction_reasons) {
-          c->restriction_reasons = std::move(restriction_reasons);
-          c->is_changed = true;
-        }
-        on_update_channel_bot_verification_icon(c, channel_id, CustomEmojiId(channel.bot_verification_icon_));
-      }
-      if (c->join_to_send != join_to_send || c->join_request != join_request) {
-        c->join_to_send = join_to_send;
-        c->join_request = join_request;
-
-        c->need_save_to_database = true;
-      }
-      // sign_messages isn't known for min-channels
-      if (c->is_verified != is_verified) {
-        c->is_verified = is_verified;
-
-        c->is_changed = true;
-      }
-      if (old_join_to_send != get_channel_join_to_send(c) || old_join_request != get_channel_join_request(c)) {
-        c->is_changed = true;
-      }
-
-      // must be after setting of c->is_megagroup
-      on_update_channel_default_permissions(c, channel_id,
-                                            RestrictedRights(channel.default_banned_rights_, ChannelType::Megagroup));
-
-      update_channel(c, channel_id);
-    } else {
-      auto min_channel = td::make_unique<MinChannel>();
-      min_channel->photo_ =
-          get_dialog_photo(td_->file_manager_.get(), DialogId(channel_id), access_hash, std::move(channel.photo_));
-      if (td_->auth_manager_->is_bot()) {
-        min_channel->photo_.minithumbnail.clear();
-      }
-      PeerColor peer_color(channel.color_);
-      min_channel->accent_color_id_ = peer_color.accent_color_id_;
-      min_channel->title_ = std::move(channel.title_);
-      min_channel->is_megagroup_ = is_megagroup;
-
-      min_channels_.set(channel_id, std::move(min_channel));
-    }
-    return;
-  }
-  if (access_hash == 0) {
-    LOG(ERROR) << "Receive non-min " << channel_id << " without access_hash from " << source;
-    return;
-  }
-
-  DialogParticipantStatus status = [&] {
-    if (channel.creator_) {
-      bool is_anonymous = channel.admin_rights_ != nullptr &&
-                          (channel.admin_rights_->flags_ & telegram_api::chatAdminRights::ANONYMOUS_MASK) != 0;
-      return DialogParticipantStatus::Creator(!channel.left_, is_anonymous, string());
-    } else if (channel.admin_rights_ != nullptr) {
-      return DialogParticipantStatus(false, std::move(channel.admin_rights_), string(),
-                                     is_megagroup ? ChannelType::Megagroup : ChannelType::Broadcast);
-    } else if (channel.banned_rights_ != nullptr) {
-      return DialogParticipantStatus(!channel.left_, std::move(channel.banned_rights_),
-                                     is_megagroup ? ChannelType::Megagroup : ChannelType::Broadcast);
-    } else if (channel.left_) {
-      return DialogParticipantStatus::Left();
-    } else {
-      return DialogParticipantStatus::Member(channel.subscription_until_date_);
-    }
-  }();
-  if (status.is_creator()) {
-    // to correctly calculate is_ownership_transferred in on_update_channel_status
-    get_channel_force(channel_id, source);
-  }
-
-  Channel *c = add_channel(channel_id, "on_get_channel");
-  auto old_join_to_send = get_channel_join_to_send(c);
-  auto old_join_request = get_channel_join_request(c);
-  if (c->access_hash != access_hash) {
-    c->access_hash = access_hash;
-    c->need_save_to_database = true;
-  }
-  if (c->date != channel.date_) {
-    c->date = channel.date_;
-    c->is_changed = true;
-  }
-
-  bool need_update_participant_count = have_participant_count && participant_count != c->participant_count;
-  if (need_update_participant_count) {
-    c->participant_count = participant_count;
-    c->is_changed = true;
-  }
-
-  bool need_invalidate_channel_full = false;
-  if (c->has_linked_channel != has_linked_channel || c->is_slow_mode_enabled != is_slow_mode_enabled ||
-      c->is_megagroup != is_megagroup || c->is_scam != is_scam || c->is_fake != is_fake ||
-      c->is_gigagroup != is_gigagroup || c->is_forum != is_forum || c->boost_level != boost_level ||
-      c->paid_message_star_count != paid_message_star_count) {
-    c->has_linked_channel = has_linked_channel;
-    c->is_slow_mode_enabled = is_slow_mode_enabled;
-    c->is_megagroup = is_megagroup;
-    c->is_scam = is_scam;
-    c->is_fake = is_fake;
-    c->is_gigagroup = is_gigagroup;
-    if (c->is_forum != is_forum) {
-      c->is_forum = is_forum;
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_update_dialog_is_forum, DialogId(channel_id),
-                         is_forum);
-    }
-    c->boost_level = boost_level;
-    c->paid_message_star_count = paid_message_star_count;
-
-    c->is_changed = true;
-    need_invalidate_channel_full = true;
-  }
-  if (!td_->auth_manager_->is_bot()) {
-    auto restriction_reasons = get_restriction_reasons(std::move(channel.restriction_reason_));
-    if (restriction_reasons != c->restriction_reasons) {
-      c->restriction_reasons = std::move(restriction_reasons);
-      c->is_changed = true;
-    }
-    on_update_channel_bot_verification_icon(c, channel_id, CustomEmojiId(channel.bot_verification_icon_));
-  }
-  if (c->join_to_send != join_to_send || c->join_request != join_request) {
-    c->join_to_send = join_to_send;
-    c->join_request = join_request;
-
-    c->need_save_to_database = true;
-  }
-  if (c->is_verified != is_verified || c->sign_messages != sign_messages ||
-      c->show_message_sender != show_message_sender) {
-    c->is_verified = is_verified;
-    c->sign_messages = sign_messages;
-    c->show_message_sender = show_message_sender;
-
-    c->is_changed = true;
-  }
-  if (old_join_to_send != get_channel_join_to_send(c) || old_join_request != get_channel_join_request(c)) {
-    c->is_changed = true;
-  }
-
-  on_update_channel_title(c, channel_id, std::move(channel.title_));
-  on_update_channel_photo(c, channel_id, std::move(channel.photo_));
-  PeerColor peer_color(channel.color_);
-  on_update_channel_accent_color_id(c, channel_id, peer_color.accent_color_id_);
-  on_update_channel_background_custom_emoji_id(c, channel_id, peer_color.background_custom_emoji_id_);
-  PeerColor profile_peer_color(channel.profile_color_);
-  on_update_channel_profile_accent_color_id(c, channel_id, profile_peer_color.accent_color_id_);
-  on_update_channel_profile_background_custom_emoji_id(c, channel_id, profile_peer_color.background_custom_emoji_id_);
-  on_update_channel_status(c, channel_id, std::move(status));
-  on_update_channel_usernames(
-      c, channel_id,
-      Usernames(std::move(channel.username_),
-                std::move(channel.usernames_)));  // uses status, must be called after on_update_channel_status
-  on_update_channel_has_location(c, channel_id, channel.has_geo_);
-  on_update_channel_noforwards(c, channel_id, channel.noforwards_);
-  on_update_channel_emoji_status(c, channel_id, EmojiStatus::get_emoji_status(std::move(channel.emoji_status_)));
-  if (!td_->auth_manager_->is_bot() && !channel.stories_hidden_min_) {
-    on_update_channel_stories_hidden(c, channel_id, channel.stories_hidden_);
-  }
-  // must be after setting of c->is_megagroup
-  on_update_channel_default_permissions(c, channel_id,
-                                        RestrictedRights(channel.default_banned_rights_, ChannelType::Megagroup));
-  if (!td_->auth_manager_->is_bot() && (stories_available || stories_unavailable)) {
-    // update at the end, because it calls need_poll_channel_active_stories
-    on_update_channel_story_ids_impl(c, channel_id, StoryId(channel.stories_max_id_), StoryId());
-  }
-
-  if (c->cache_version != Channel::CACHE_VERSION) {
-    c->cache_version = Channel::CACHE_VERSION;
-    c->need_save_to_database = true;
-  }
-  c->is_received_from_server = true;
-  update_channel(c, channel_id);
-
-  if (need_update_participant_count) {
-    auto channel_full = get_channel_full(channel_id, true, "on_get_channel");
-    if (channel_full != nullptr && channel_full->participant_count != participant_count) {
-      channel_full->participant_count = participant_count;
-      channel_full->is_changed = true;
-      update_channel_full(channel_full, channel_id, "on_get_channel");
-    }
-  }
-
-  if (need_invalidate_channel_full) {
-    invalidate_channel_full(channel_id, !c->is_slow_mode_enabled, "on_get_channel");
-  }
-
-  td_->messages_manager_->on_update_dialog_group_call(DialogId(channel_id), channel.call_active_,
-                                                      !channel.call_not_empty_, "receive channel");
-}
-
-void ChatManager::on_get_channel_forbidden(telegram_api::channelForbidden &channel, const char *source) {
-  ChannelId channel_id(channel.id_);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id << " from " << source << ": " << to_string(channel);
-    return;
-  }
-
-  if (channel.flags_ == 0 && channel.access_hash_ == 0 && channel.title_.empty()) {
-    Channel *c = get_channel_force(channel_id, source);
-    LOG(ERROR) << "Receive empty " << to_string(channel) << " from " << source << ", have "
-               << to_string(get_supergroup_object(channel_id, c));
-    if (c == nullptr && !have_min_channel(channel_id)) {
-      min_channels_.set(channel_id, td::make_unique<MinChannel>());
-    }
-    return;
-  }
-
-  Channel *c = add_channel(channel_id, "on_get_channel_forbidden");
-  auto old_join_to_send = get_channel_join_to_send(c);
-  auto old_join_request = get_channel_join_request(c);
-  if (c->access_hash != channel.access_hash_) {
-    c->access_hash = channel.access_hash_;
-    c->need_save_to_database = true;
-  }
-  if (c->date != 0) {
-    c->date = 0;
-    c->is_changed = true;
-  }
-
-  bool sign_messages = false;
-  bool show_message_sender = false;
-  bool join_to_send = false;
-  bool join_request = false;
-  bool is_slow_mode_enabled = false;
-  bool is_megagroup = channel.megagroup_;
-  bool is_verified = false;
-  bool is_scam = false;
-  bool is_fake = false;
-
-  LOG_IF(ERROR, channel.broadcast_ == is_megagroup)
-      << "Receive wrong channel flag is_broadcast == is_megagroup == " << is_megagroup << " from " << source << ": "
-      << oneline(to_string(channel));
-
-  if (is_megagroup) {
-    sign_messages = true;
-    show_message_sender = true;
-  }
-
-  bool need_invalidate_channel_full = false;
-  if (c->is_slow_mode_enabled != is_slow_mode_enabled || c->is_megagroup != is_megagroup ||
-      !c->restriction_reasons.empty() || c->is_scam != is_scam || c->is_fake != is_fake ||
-      c->join_to_send != join_to_send || c->join_request != join_request) {
-    // c->has_linked_channel = has_linked_channel;
-    c->is_slow_mode_enabled = is_slow_mode_enabled;
-    c->is_megagroup = is_megagroup;
-    c->restriction_reasons.clear();
-    c->is_scam = is_scam;
-    c->is_fake = is_fake;
-    c->join_to_send = join_to_send;
-    c->join_request = join_request;
-
-    c->is_changed = true;
-    need_invalidate_channel_full = true;
-  }
-  if (c->join_to_send != join_to_send || c->join_request != join_request) {
-    c->join_to_send = join_to_send;
-    c->join_request = join_request;
-
-    c->need_save_to_database = true;
-  }
-  if (c->is_verified != is_verified || c->sign_messages != sign_messages ||
-      c->show_message_sender != show_message_sender) {
-    c->is_verified = is_verified;
-    c->sign_messages = sign_messages;
-    c->show_message_sender = show_message_sender;
-
-    c->is_changed = true;
-  }
-  if (old_join_to_send != get_channel_join_to_send(c) || old_join_request != get_channel_join_request(c)) {
-    c->is_changed = true;
-  }
-
-  on_update_channel_title(c, channel_id, std::move(channel.title_));
-  on_update_channel_photo(c, channel_id, nullptr);
-  on_update_channel_status(c, channel_id, DialogParticipantStatus::Banned(channel.until_date_));
-  // on_update_channel_usernames(c, channel_id, Usernames());  // don't know if channel usernames are empty, so don't update it
-  // on_update_channel_has_location(c, channel_id, false);
-  on_update_channel_noforwards(c, channel_id, false);
-  on_update_channel_emoji_status(c, channel_id, nullptr);
-  on_update_channel_bot_verification_icon(c, channel_id, CustomEmojiId());
-  td_->messages_manager_->on_update_dialog_group_call(DialogId(channel_id), false, false, "on_get_channel_forbidden");
-  // must be after setting of c->is_megagroup
-  tl_object_ptr<telegram_api::chatBannedRights> banned_rights;  // == nullptr
-  on_update_channel_default_permissions(c, channel_id, RestrictedRights(banned_rights, ChannelType::Megagroup));
-
-  bool need_drop_participant_count = c->participant_count != 0;
-  if (need_drop_participant_count) {
-    c->participant_count = 0;
-    c->is_changed = true;
-  }
-
-  if (c->cache_version != Channel::CACHE_VERSION) {
-    c->cache_version = Channel::CACHE_VERSION;
-    c->need_save_to_database = true;
-  }
-  c->is_received_from_server = true;
-  update_channel(c, channel_id);
-
-  if (need_drop_participant_count) {
-    auto channel_full = get_channel_full(channel_id, true, "on_get_channel_forbidden");
-    if (channel_full != nullptr && channel_full->participant_count != 0) {
-      channel_full->participant_count = 0;
-      channel_full->administrator_count = 0;
-      channel_full->is_changed = true;
-      update_channel_full(channel_full, channel_id, "on_get_channel_forbidden 2");
-    }
-  }
-  if (need_invalidate_channel_full) {
-    invalidate_channel_full(channel_id, !c->is_slow_mode_enabled, "on_get_channel_forbidden 3");
-  }
-}
-
-td_api::object_ptr<td_api::updateBasicGroup> ChatManager::get_update_basic_group_object(ChatId chat_id, const Chat *c) {
-  if (c == nullptr) {
-    return get_update_unknown_basic_group_object(chat_id);
-  }
-  return td_api::make_object<td_api::updateBasicGroup>(get_basic_group_object(chat_id, c));
-}
-
-td_api::object_ptr<td_api::updateBasicGroup> ChatManager::get_update_unknown_basic_group_object(ChatId chat_id) {
-  return td_api::make_object<td_api::updateBasicGroup>(td_api::make_object<td_api::basicGroup>(
-      chat_id.get(), 0, DialogParticipantStatus::Banned(0).get_chat_member_status_object(), true, 0));
-}
-
-int64 ChatManager::get_basic_group_id_object(ChatId chat_id, const char *source) const {
-  if (chat_id.is_valid() && get_chat(chat_id) == nullptr && unknown_chats_.count(chat_id) == 0) {
-    LOG(ERROR) << "Have no information about " << chat_id << " from " << source;
-    unknown_chats_.insert(chat_id);
-    send_closure(G()->td(), &Td::send_update, get_update_unknown_basic_group_object(chat_id));
-  }
-  return chat_id.get();
-}
-
-tl_object_ptr<td_api::basicGroup> ChatManager::get_basic_group_object(ChatId chat_id) {
-  return get_basic_group_object(chat_id, get_chat(chat_id));
-}
-
-tl_object_ptr<td_api::basicGroup> ChatManager::get_basic_group_object(ChatId chat_id, const Chat *c) {
-  if (c == nullptr) {
-    return nullptr;
-  }
-  if (c->migrated_to_channel_id.is_valid()) {
-    get_channel_force(c->migrated_to_channel_id, "get_basic_group_object");
-  }
-  return get_basic_group_object_const(chat_id, c);
-}
-
-tl_object_ptr<td_api::basicGroup> ChatManager::get_basic_group_object_const(ChatId chat_id, const Chat *c) const {
-  return make_tl_object<td_api::basicGroup>(
-      chat_id.get(), c->participant_count, get_chat_status(c).get_chat_member_status_object(), c->is_active,
-      get_supergroup_id_object(c->migrated_to_channel_id, "get_basic_group_object"));
-}
-
-tl_object_ptr<td_api::basicGroupFullInfo> ChatManager::get_basic_group_full_info_object(ChatId chat_id) const {
-  return get_basic_group_full_info_object(chat_id, get_chat_full(chat_id));
-}
-
-tl_object_ptr<td_api::basicGroupFullInfo> ChatManager::get_basic_group_full_info_object(
-    ChatId chat_id, const ChatFull *chat_full) const {
-  CHECK(chat_full != nullptr);
-  auto bot_commands = transform(chat_full->bot_commands, [td = td_](const BotCommands &commands) {
-    return commands.get_bot_commands_object(td);
-  });
-  auto members = transform(chat_full->participants, [this](const DialogParticipant &dialog_participant) {
-    return get_chat_member_object(dialog_participant, "get_basic_group_full_info_object");
-  });
-  return make_tl_object<td_api::basicGroupFullInfo>(
-      get_chat_photo_object(td_->file_manager_.get(), chat_full->photo), chat_full->description,
-      td_->user_manager_->get_user_id_object(chat_full->creator_user_id, "basicGroupFullInfo"), std::move(members),
-      can_hide_chat_participants(chat_id).is_ok(), can_toggle_chat_aggressive_anti_spam(chat_id).is_ok(),
-      chat_full->invite_link.get_chat_invite_link_object(td_->user_manager_.get()), std::move(bot_commands));
-}
-
-td_api::object_ptr<td_api::updateSupergroup> ChatManager::get_update_supergroup_object(ChannelId channel_id,
-                                                                                       const Channel *c) const {
-  if (c == nullptr) {
-    return get_update_unknown_supergroup_object(channel_id);
-  }
-  return td_api::make_object<td_api::updateSupergroup>(get_supergroup_object(channel_id, c));
-}
-
-td_api::object_ptr<td_api::updateSupergroup> ChatManager::get_update_unknown_supergroup_object(
-    ChannelId channel_id) const {
-  auto min_channel = get_min_channel(channel_id);
-  bool is_megagroup = min_channel == nullptr ? false : min_channel->is_megagroup_;
-  return td_api::make_object<td_api::updateSupergroup>(td_api::make_object<td_api::supergroup>(
-      channel_id.get(), nullptr, 0, DialogParticipantStatus::Banned(0).get_chat_member_status_object(), 0, 0, false,
-      false, false, false, !is_megagroup, false, false, !is_megagroup, false, false, nullptr, false, string(), 0, false,
-      false));
-}
-
-int64 ChatManager::get_supergroup_id_object(ChannelId channel_id, const char *source) const {
-  if (channel_id.is_valid() && get_channel(channel_id) == nullptr && unknown_channels_.count(channel_id) == 0) {
-    if (have_min_channel(channel_id)) {
-      LOG(INFO) << "Have only min " << channel_id << " received from " << source;
-    } else {
-      LOG(ERROR) << "Have no information about " << channel_id << " received from " << source;
-    }
-    unknown_channels_.insert(channel_id);
-    send_closure(G()->td(), &Td::send_update, get_update_unknown_supergroup_object(channel_id));
-  }
-  return channel_id.get();
-}
-
-bool ChatManager::need_poll_channel_active_stories(const Channel *c, ChannelId channel_id) const {
-  return c != nullptr && !get_channel_status(c).is_member() &&
-         have_input_peer_channel(c, channel_id, AccessRights::Read);
-}
-
-bool ChatManager::get_channel_has_unread_stories(const Channel *c) {
-  CHECK(c != nullptr);
-  return c->max_active_story_id.get() > c->max_read_story_id.get();
-}
-
-td_api::object_ptr<td_api::supergroup> ChatManager::get_supergroup_object(ChannelId channel_id) const {
-  return get_supergroup_object(channel_id, get_channel(channel_id));
-}
-
-td_api::object_ptr<td_api::supergroup> ChatManager::get_supergroup_object(ChannelId channel_id,
-                                                                          const Channel *c) const {
-  if (c == nullptr) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::supergroup>(
-      channel_id.get(), c->usernames.get_usernames_object(), c->date,
-      get_channel_status(c).get_chat_member_status_object(), c->participant_count, c->boost_level,
-      c->has_linked_channel, c->has_location, c->sign_messages, c->show_message_sender, get_channel_join_to_send(c),
-      get_channel_join_request(c), c->is_slow_mode_enabled, !c->is_megagroup, c->is_gigagroup, c->is_forum,
-      get_channel_verification_status_object(c), get_restriction_reason_has_sensitive_content(c->restriction_reasons),
-      get_restriction_reason_description(c->restriction_reasons), c->paid_message_star_count,
-      c->max_active_story_id.is_valid(), get_channel_has_unread_stories(c));
-}
-
-tl_object_ptr<td_api::supergroupFullInfo> ChatManager::get_supergroup_full_info_object(ChannelId channel_id) const {
-  return get_supergroup_full_info_object(channel_id, get_channel_full(channel_id));
-}
-
-tl_object_ptr<td_api::supergroupFullInfo> ChatManager::get_supergroup_full_info_object(
-    ChannelId channel_id, const ChannelFull *channel_full) const {
-  CHECK(channel_full != nullptr);
-  double slow_mode_delay_expires_in = 0;
-  if (channel_full->slow_mode_next_send_date != 0 &&
-      (channel_full->unrestrict_boost_count == 0 || channel_full->boost_count < channel_full->unrestrict_boost_count)) {
-    slow_mode_delay_expires_in = max(channel_full->slow_mode_next_send_date - G()->server_time(), 1e-3);
-  }
-  auto bot_commands = transform(channel_full->bot_commands, [td = td_](const BotCommands &commands) {
-    return commands.get_bot_commands_object(td);
-  });
-  auto bot_verification = channel_full->bot_verification == nullptr
-                              ? nullptr
-                              : channel_full->bot_verification->get_bot_verification_object(td_);
-  bool has_hidden_participants = channel_full->has_hidden_participants || !channel_full->can_get_participants;
-  return td_api::make_object<td_api::supergroupFullInfo>(
-      get_chat_photo_object(td_->file_manager_.get(), channel_full->photo), channel_full->description,
-      channel_full->participant_count, channel_full->administrator_count, channel_full->restricted_count,
-      channel_full->banned_count, DialogId(channel_full->linked_channel_id).get(), channel_full->slow_mode_delay,
-      slow_mode_delay_expires_in, channel_full->has_paid_messages_available, channel_full->has_paid_media_allowed,
-      channel_full->can_get_participants, has_hidden_participants,
-      can_hide_channel_participants(channel_id, channel_full).is_ok(), channel_full->can_set_sticker_set,
-      channel_full->can_set_location, channel_full->can_view_statistics, channel_full->can_view_revenue,
-      channel_full->can_view_star_revenue, channel_full->has_stargifts_available,
-      can_toggle_channel_aggressive_anti_spam(channel_id, channel_full).is_ok(), channel_full->is_all_history_available,
-      channel_full->can_have_sponsored_messages, channel_full->has_aggressive_anti_spam_enabled,
-      channel_full->has_paid_media_allowed, channel_full->has_pinned_stories, channel_full->gift_count,
-      channel_full->boost_count, channel_full->unrestrict_boost_count, channel_full->sticker_set_id.get(),
-      channel_full->emoji_sticker_set_id.get(), channel_full->location.get_chat_location_object(),
-      channel_full->invite_link.get_chat_invite_link_object(td_->user_manager_.get()), std::move(bot_commands),
-      std::move(bot_verification),
-      get_basic_group_id_object(channel_full->migrated_from_chat_id, "get_supergroup_full_info_object"),
-      channel_full->migrated_from_max_message_id.get());
-}
-
-void ChatManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  for (auto chat_id : unknown_chats_) {
-    if (!have_chat(chat_id)) {
-      updates.push_back(get_update_unknown_basic_group_object(chat_id));
-    }
-  }
-  for (auto channel_id : unknown_channels_) {
-    if (!have_channel(channel_id)) {
-      updates.push_back(get_update_unknown_supergroup_object(channel_id));
-    }
-  }
-
-  channels_.foreach([&](const ChannelId &channel_id, const unique_ptr<Channel> &channel) {
-    updates.push_back(get_update_supergroup_object(channel_id, channel.get()));
-  });
-  // chat objects can contain channel_id, so they must be sent after channels
-  chats_.foreach([&](const ChatId &chat_id, const unique_ptr<Chat> &chat) {
-    updates.push_back(td_api::make_object<td_api::updateBasicGroup>(get_basic_group_object_const(chat_id, chat.get())));
-  });
-
-  channels_full_.foreach([&](const ChannelId &channel_id, const unique_ptr<ChannelFull> &channel_full) {
-    updates.push_back(td_api::make_object<td_api::updateSupergroupFullInfo>(
-        channel_id.get(), get_supergroup_full_info_object(channel_id, channel_full.get())));
-  });
-  chats_full_.foreach([&](const ChatId &chat_id, const unique_ptr<ChatFull> &chat_full) {
-    updates.push_back(td_api::make_object<td_api::updateBasicGroupFullInfo>(
-        chat_id.get(), get_basic_group_full_info_object(chat_id, chat_full.get())));
-  });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChatManager.h b/third-party/td/td/td/telegram/ChatManager.h
deleted file mode 100644
index 74b1f989d6..0000000000
--- a/third-party/td/td/td/telegram/ChatManager.h
+++ /dev/null
@@ -1,929 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/BotCommand.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogInviteLink.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageTtl.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/PublicDialogType.h"
-#include "td/telegram/QueryCombiner.h"
-#include "td/telegram/QueryMerger.h"
-#include "td/telegram/RestrictionReason.h"
-#include "td/telegram/StickerSetId.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/Usernames.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeHashSet.h"
-
-#include <utility>
-
-namespace td {
-
-struct BinlogEvent;
-class BotVerification;
-class EmojiStatus;
-struct MinChannel;
-class Td;
-
-class ChatManager final : public Actor {
- public:
-  ChatManager(Td *td, ActorShared<> parent);
-  ChatManager(const ChatManager &) = delete;
-  ChatManager &operator=(const ChatManager &) = delete;
-  ChatManager(ChatManager &&) = delete;
-  ChatManager &operator=(ChatManager &&) = delete;
-  ~ChatManager() final;
-
-  static ChatId get_chat_id(const tl_object_ptr<telegram_api::Chat> &chat);
-  static ChannelId get_channel_id(const tl_object_ptr<telegram_api::Chat> &chat);
-  static DialogId get_dialog_id(const tl_object_ptr<telegram_api::Chat> &chat);
-
-  vector<ChannelId> get_channel_ids(vector<tl_object_ptr<telegram_api::Chat>> &&chats, const char *source);
-
-  // TODO get_input_chat ???
-
-  tl_object_ptr<telegram_api::InputChannel> get_input_channel(ChannelId channel_id) const;
-
-  tl_object_ptr<telegram_api::InputPeer> get_input_peer_chat(ChatId chat_id, AccessRights access_rights) const;
-  bool have_input_peer_chat(ChatId chat_id, AccessRights access_rights) const;
-
-  tl_object_ptr<telegram_api::InputPeer> get_simple_input_peer(DialogId dialog_id) const;
-  tl_object_ptr<telegram_api::InputPeer> get_input_peer_channel(ChannelId channel_id, AccessRights access_rights) const;
-  bool have_input_peer_channel(ChannelId channel_id, AccessRights access_rights) const;
-
-  bool is_chat_received_from_server(ChatId chat_id) const;
-  bool is_channel_received_from_server(ChannelId channel_id) const;
-
-  const DialogPhoto *get_chat_dialog_photo(ChatId chat_id) const;
-  const DialogPhoto *get_channel_dialog_photo(ChannelId channel_id) const;
-
-  AccentColorId get_channel_accent_color_id(ChannelId channel_id) const;
-
-  int32 get_chat_accent_color_id_object(ChatId chat_id) const;
-  int32 get_channel_accent_color_id_object(ChannelId channel_id) const;
-
-  CustomEmojiId get_chat_background_custom_emoji_id(ChatId chat_id) const;
-  CustomEmojiId get_channel_background_custom_emoji_id(ChannelId channel_id) const;
-
-  int32 get_chat_profile_accent_color_id_object(ChatId chat_id) const;
-  int32 get_channel_profile_accent_color_id_object(ChannelId channel_id) const;
-
-  CustomEmojiId get_chat_profile_background_custom_emoji_id(ChatId chat_id) const;
-  CustomEmojiId get_channel_profile_background_custom_emoji_id(ChannelId channel_id) const;
-
-  string get_chat_title(ChatId chat_id) const;
-  string get_channel_title(ChannelId channel_id) const;
-
-  RestrictedRights get_chat_default_permissions(ChatId chat_id) const;
-  RestrictedRights get_channel_default_permissions(ChannelId channel_id) const;
-
-  td_api::object_ptr<td_api::emojiStatus> get_chat_emoji_status_object(ChatId chat_id) const;
-  td_api::object_ptr<td_api::emojiStatus> get_channel_emoji_status_object(ChannelId channel_id) const;
-
-  string get_chat_about(ChatId chat_id);
-  string get_channel_about(ChannelId channel_id);
-
-  bool get_chat_has_protected_content(ChatId chat_id) const;
-  bool get_channel_has_protected_content(ChannelId channel_id) const;
-
-  bool get_channel_stories_hidden(ChannelId channel_id) const;
-
-  bool can_poll_channel_active_stories(ChannelId channel_id) const;
-
-  bool can_use_premium_custom_emoji_in_channel(ChannelId channel_id) const;
-
-  string get_channel_search_text(ChannelId channel_id) const;
-
-  string get_channel_first_username(ChannelId channel_id) const;
-  string get_channel_editable_username(ChannelId channel_id) const;
-
-  void on_binlog_chat_event(BinlogEvent &&event);
-  void on_binlog_channel_event(BinlogEvent &&event);
-
-  void on_get_chat(tl_object_ptr<telegram_api::Chat> &&chat, const char *source);
-  void on_get_chats(vector<tl_object_ptr<telegram_api::Chat>> &&chats, const char *source);
-
-  void on_get_chat_full(tl_object_ptr<telegram_api::ChatFull> &&chat_full, Promise<Unit> &&promise);
-  void on_get_chat_full_failed(ChatId chat_id);
-  void on_get_channel_full_failed(ChannelId channel_id);
-
-  void on_ignored_restriction_reasons_changed();
-
-  void on_get_chat_participants(tl_object_ptr<telegram_api::ChatParticipants> &&participants, bool from_update);
-  void on_update_chat_add_user(ChatId chat_id, UserId inviter_user_id, UserId user_id, int32 date, int32 version);
-  void on_update_chat_description(ChatId chat_id, string &&description);
-  void on_update_chat_edit_administrator(ChatId chat_id, UserId user_id, bool is_administrator, int32 version);
-  void on_update_chat_delete_user(ChatId chat_id, UserId user_id, int32 version);
-  void on_update_chat_default_permissions(ChatId chat_id, RestrictedRights default_permissions, int32 version);
-  void on_update_chat_pinned_message(ChatId chat_id, MessageId pinned_message_id, int32 version);
-  void on_update_chat_bot_commands(ChatId chat_id, BotCommands &&bot_commands);
-  void on_update_chat_permanent_invite_link(ChatId chat_id, const DialogInviteLink &invite_link);
-
-  void on_update_channel_participant_count(ChannelId channel_id, int32 participant_count);
-  void on_update_channel_editable_username(ChannelId channel_id, string &&username);
-  void on_update_channel_usernames(ChannelId channel_id, Usernames &&usernames);
-  void on_update_channel_story_ids(ChannelId channel_id, StoryId max_active_story_id, StoryId max_read_story_id);
-  void on_update_channel_max_read_story_id(ChannelId channel_id, StoryId max_read_story_id);
-  void on_update_channel_stories_hidden(ChannelId channel_id, bool stories_hidden);
-  void on_update_channel_description(ChannelId channel_id, string &&description);
-  void on_update_channel_sticker_set(ChannelId channel_id, StickerSetId sticker_set_id);
-  void on_update_channel_emoji_sticker_set(ChannelId channel_id, StickerSetId sticker_set_id);
-  void on_update_channel_unrestrict_boost_count(ChannelId channel_id, int32 unrestrict_boost_count);
-  void on_update_channel_gift_count(ChannelId channel_id, int32 gift_count, bool is_added);
-  void on_update_channel_linked_channel_id(ChannelId channel_id, ChannelId group_channel_id);
-  void on_update_channel_location(ChannelId channel_id, const DialogLocation &location);
-  void on_update_channel_slow_mode_delay(ChannelId channel_id, int32 slow_mode_delay, Promise<Unit> &&promise);
-  void on_update_channel_slow_mode_next_send_date(ChannelId channel_id, int32 slow_mode_next_send_date);
-  void on_update_channel_is_all_history_available(ChannelId channel_id, bool is_all_history_available,
-                                                  Promise<Unit> &&promise);
-  void on_update_channel_can_have_sponsored_messages(ChannelId channel_id, bool can_have_sponsored_messages,
-                                                     Promise<Unit> &&promise);
-  void on_update_channel_has_hidden_participants(ChannelId channel_id, bool has_hidden_participants,
-                                                 Promise<Unit> &&promise);
-  void on_update_channel_has_aggressive_anti_spam_enabled(ChannelId channel_id, bool has_aggressive_anti_spam_enabled,
-                                                          Promise<Unit> &&promise);
-  void on_update_channel_has_pinned_stories(ChannelId channel_id, bool has_pinned_stories);
-  void on_update_channel_default_permissions(ChannelId channel_id, RestrictedRights default_permissions);
-  void on_update_channel_administrator_count(ChannelId channel_id, int32 administrator_count);
-  void on_update_channel_bot_commands(ChannelId channel_id, BotCommands &&bot_commands);
-  void on_update_channel_permanent_invite_link(ChannelId channel_id, const DialogInviteLink &invite_link);
-
-  void speculative_add_channel_participants(ChannelId channel_id, const vector<UserId> &added_user_ids,
-                                            UserId inviter_user_id, int32 date, bool by_me);
-
-  void speculative_delete_channel_participant(ChannelId channel_id, UserId deleted_user_id, bool by_me);
-
-  void invalidate_channel_full(ChannelId channel_id, bool need_drop_slow_mode_delay, const char *source);
-
-  bool on_get_channel_error(ChannelId channel_id, const Status &status, const char *source);
-
-  void on_get_created_public_channels(PublicDialogType type, vector<tl_object_ptr<telegram_api::Chat>> &&chats);
-
-  bool are_created_public_broadcasts_inited() const;
-
-  const vector<ChannelId> &get_created_public_broadcasts() const;
-
-  void on_get_dialogs_for_discussion(vector<tl_object_ptr<telegram_api::Chat>> &&chats);
-
-  void on_get_inactive_channels(vector<tl_object_ptr<telegram_api::Chat>> &&chats, Promise<Unit> &&promise);
-
-  void remove_inactive_channel(ChannelId channel_id);
-
-  void register_message_channels(MessageFullId message_full_id, vector<ChannelId> channel_ids);
-
-  void unregister_message_channels(MessageFullId message_full_id, vector<ChannelId> channel_ids);
-
-  static ChannelId get_unsupported_channel_id();
-
-  void update_chat_online_member_count(ChatId chat_id, bool is_from_server);
-
-  void on_update_channel_bot_user_ids(ChannelId channel_id, vector<UserId> &&bot_user_ids);
-
-  void on_update_channel_username_is_active(ChannelId channel_id, string &&username, bool is_active,
-                                            Promise<Unit> &&promise);
-
-  void on_deactivate_channel_usernames(ChannelId channel_id, Promise<Unit> &&promise);
-
-  void on_update_channel_active_usernames_order(ChannelId channel_id, vector<string> &&usernames,
-                                                Promise<Unit> &&promise);
-
-  void set_chat_description(ChatId chat_id, const string &description, Promise<Unit> &&promise);
-
-  void set_channel_username(ChannelId channel_id, const string &username, Promise<Unit> &&promise);
-
-  void toggle_channel_username_is_active(ChannelId channel_id, string &&username, bool is_active,
-                                         Promise<Unit> &&promise);
-
-  void disable_all_channel_usernames(ChannelId channel_id, Promise<Unit> &&promise);
-
-  void reorder_channel_usernames(ChannelId channel_id, vector<string> &&usernames, Promise<Unit> &&promise);
-
-  void set_channel_accent_color(ChannelId channel_id, AccentColorId accent_color_id,
-                                CustomEmojiId background_custom_emoji_id, Promise<Unit> &&promise);
-
-  void set_channel_profile_accent_color(ChannelId channel_id, AccentColorId profile_accent_color_id,
-                                        CustomEmojiId profile_background_custom_emoji_id, Promise<Unit> &&promise);
-
-  void set_channel_emoji_status(ChannelId channel_id, const unique_ptr<EmojiStatus> &emoji_status,
-                                Promise<Unit> &&promise);
-
-  void set_channel_sticker_set(ChannelId channel_id, StickerSetId sticker_set_id, Promise<Unit> &&promise);
-
-  void set_channel_emoji_sticker_set(ChannelId channel_id, StickerSetId sticker_set_id, Promise<Unit> &&promise);
-
-  void set_channel_unrestrict_boost_count(ChannelId channel_id, int32 unrestrict_boost_count, Promise<Unit> &&promise);
-
-  void toggle_channel_sign_messages(ChannelId channel_id, bool sign_messages, bool show_message_sender,
-                                    Promise<Unit> &&promise);
-
-  void toggle_channel_join_to_send(ChannelId channel_id, bool joint_to_send, Promise<Unit> &&promise);
-
-  void toggle_channel_join_request(ChannelId channel_id, bool join_request, Promise<Unit> &&promise);
-
-  void toggle_channel_is_all_history_available(ChannelId channel_id, bool is_all_history_available,
-                                               Promise<Unit> &&promise);
-
-  void toggle_channel_can_have_sponsored_messages(ChannelId channel_id, bool can_have_sponsored_messages,
-                                                  Promise<Unit> &&promise);
-
-  void toggle_channel_has_hidden_participants(ChannelId channel_id, bool has_hidden_participants,
-                                              Promise<Unit> &&promise);
-
-  void toggle_channel_has_aggressive_anti_spam_enabled(ChannelId channel_id, bool has_aggressive_anti_spam_enabled,
-                                                       Promise<Unit> &&promise);
-
-  void toggle_channel_is_forum(ChannelId channel_id, bool is_forum, Promise<Unit> &&promise);
-
-  void convert_channel_to_gigagroup(ChannelId channel_id, Promise<Unit> &&promise);
-
-  void set_channel_description(ChannelId channel_id, const string &description, Promise<Unit> &&promise);
-
-  void set_channel_discussion_group(DialogId dialog_id, DialogId discussion_dialog_id, Promise<Unit> &&promise);
-
-  void set_channel_location(ChannelId dialog_id, const DialogLocation &location, Promise<Unit> &&promise);
-
-  void set_channel_slow_mode_delay(DialogId dialog_id, int32 slow_mode_delay, Promise<Unit> &&promise);
-
-  void report_channel_spam(ChannelId channel_id, const vector<MessageId> &message_ids, Promise<Unit> &&promise);
-
-  void report_channel_anti_spam_false_positive(ChannelId channel_id, MessageId message_id, Promise<Unit> &&promise);
-
-  void set_channel_send_paid_messages_star_count(DialogId dialog_id, int64 send_paid_messages_star_count,
-                                                 Promise<Unit> &&promise);
-
-  void delete_chat(ChatId chat_id, Promise<Unit> &&promise);
-
-  void delete_channel(ChannelId channel_id, Promise<Unit> &&promise);
-
-  void get_channel_statistics_dc_id(DialogId dialog_id, bool for_full_statistics, Promise<DcId> &&promise);
-
-  bool can_get_channel_message_statistics(ChannelId channel_id) const;
-
-  bool can_get_channel_story_statistics(ChannelId channel_id) const;
-
-  bool can_convert_channel_to_gigagroup(ChannelId channel_id) const;
-
-  void get_created_public_dialogs(PublicDialogType type, Promise<td_api::object_ptr<td_api::chats>> &&promise,
-                                  bool from_binlog);
-
-  void check_created_public_dialogs_limit(PublicDialogType type, Promise<Unit> &&promise);
-
-  void reload_created_public_dialogs(PublicDialogType type, Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  vector<DialogId> get_dialogs_for_discussion(Promise<Unit> &&promise);
-
-  vector<DialogId> get_inactive_channels(Promise<Unit> &&promise);
-
-  void create_new_chat(const vector<UserId> &user_ids, const string &title, MessageTtl message_ttl,
-                       Promise<td_api::object_ptr<td_api::createdBasicGroupChat>> &&promise);
-
-  bool have_chat(ChatId chat_id) const;
-  bool have_chat_force(ChatId chat_id, const char *source);
-  bool get_chat(ChatId chat_id, int left_tries, Promise<Unit> &&promise);
-  void reload_chat(ChatId chat_id, Promise<Unit> &&promise, const char *source);
-  void load_chat_full(ChatId chat_id, bool force, Promise<Unit> &&promise, const char *source);
-  FileSourceId get_chat_full_file_source_id(ChatId chat_id);
-  void reload_chat_full(ChatId chat_id, Promise<Unit> &&promise, const char *source);
-
-  int32 get_chat_date(ChatId chat_id) const;
-  int32 get_chat_participant_count(ChatId chat_id) const;
-  bool get_chat_is_active(ChatId chat_id) const;
-  ChannelId get_chat_migrated_to_channel_id(ChatId chat_id) const;
-  DialogParticipantStatus get_chat_status(ChatId chat_id) const;
-  DialogParticipantStatus get_chat_permissions(ChatId chat_id) const;
-  bool is_appointed_chat_administrator(ChatId chat_id) const;
-  const DialogParticipant *get_chat_participant(ChatId chat_id, UserId user_id) const;
-  const vector<DialogParticipant> *get_chat_participants(ChatId chat_id) const;
-
-  void create_new_channel(const string &title, bool is_forum, bool is_megagroup, const string &description,
-                          const DialogLocation &location, bool for_import, MessageTtl message_ttl,
-                          Promise<td_api::object_ptr<td_api::chat>> &&promise);
-
-  bool have_min_channel(ChannelId channel_id) const;
-  const MinChannel *get_min_channel(ChannelId channel_id) const;
-  void add_min_channel(ChannelId channel_id, const MinChannel &min_channel);
-
-  bool have_channel(ChannelId channel_id) const;
-  bool have_channel_force(ChannelId channel_id, const char *source);
-  bool get_channel(ChannelId channel_id, int left_tries, Promise<Unit> &&promise);
-  void reload_channel(ChannelId channel_id, Promise<Unit> &&promise, const char *source);
-  void load_channel_full(ChannelId channel_id, bool force, Promise<Unit> &&promise, const char *source);
-  FileSourceId get_channel_full_file_source_id(ChannelId channel_id);
-  void reload_channel_full(ChannelId channel_id, Promise<Unit> &&promise, const char *source);
-
-  bool is_channel_public(ChannelId channel_id) const;
-
-  ChannelType get_channel_type(ChannelId channel_id) const;
-  bool is_broadcast_channel(ChannelId channel_id) const;
-  bool is_megagroup_channel(ChannelId channel_id) const;
-  bool is_forum_channel(ChannelId channel_id) const;
-  int32 get_channel_date(ChannelId channel_id) const;
-  DialogParticipantStatus get_channel_status(ChannelId channel_id) const;
-  DialogParticipantStatus get_channel_permissions(ChannelId channel_id) const;
-  bool get_channel_is_verified(ChannelId channel_id) const;
-  td_api::object_ptr<td_api::verificationStatus> get_channel_verification_status_object(ChannelId channel_id) const;
-  int32 get_channel_participant_count(ChannelId channel_id) const;
-  bool get_channel_sign_messages(ChannelId channel_id) const;
-  bool get_channel_show_message_sender(ChannelId channel_id) const;
-  bool get_channel_has_linked_channel(ChannelId channel_id) const;
-  bool get_channel_join_request(ChannelId channel_id) const;
-  bool get_channel_can_be_deleted(ChannelId channel_id) const;
-  ChannelId get_channel_linked_channel_id(ChannelId channel_id, const char *source);
-  int32 get_channel_slow_mode_delay(ChannelId channel_id, const char *source);
-  bool get_channel_effective_has_hidden_participants(ChannelId channel_id, const char *source);
-  int32 get_channel_my_boost_count(ChannelId channel_id);
-
-  void get_chat_participant(ChatId chat_id, UserId user_id, Promise<DialogParticipant> &&promise);
-
-  void speculative_add_channel_user(ChannelId channel_id, UserId user_id, const DialogParticipantStatus &new_status,
-                                    const DialogParticipantStatus &old_status);
-
-  int64 get_basic_group_id_object(ChatId chat_id, const char *source) const;
-
-  tl_object_ptr<td_api::basicGroup> get_basic_group_object(ChatId chat_id);
-
-  tl_object_ptr<td_api::basicGroupFullInfo> get_basic_group_full_info_object(ChatId chat_id) const;
-
-  int64 get_supergroup_id_object(ChannelId channel_id, const char *source) const;
-
-  td_api::object_ptr<td_api::supergroup> get_supergroup_object(ChannelId channel_id) const;
-
-  tl_object_ptr<td_api::supergroupFullInfo> get_supergroup_full_info_object(ChannelId channel_id) const;
-
-  tl_object_ptr<td_api::chatMember> get_chat_member_object(const DialogParticipant &dialog_participant,
-                                                           const char *source) const;
-
-  void repair_chat_participants(ChatId chat_id);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  struct Chat {
-    string title;
-    DialogPhoto photo;
-    int32 participant_count = 0;
-    int32 date = 0;
-    int32 version = -1;
-    int32 default_permissions_version = -1;
-    int32 pinned_message_version = -1;
-    ChannelId migrated_to_channel_id;
-
-    DialogParticipantStatus status = DialogParticipantStatus::Banned(0);
-    RestrictedRights default_permissions{false, false, false, false, false, false, false, false, false,
-                                         false, false, false, false, false, false, false, false, ChannelType::Unknown};
-
-    static constexpr uint32 CACHE_VERSION = 4;
-    uint32 cache_version = 0;
-
-    bool is_active = false;
-    bool noforwards = false;
-
-    bool is_title_changed = true;
-    bool is_photo_changed = true;
-    bool is_default_permissions_changed = true;
-    bool is_status_changed = true;
-    bool is_is_active_changed = true;
-    bool is_noforwards_changed = true;
-    bool is_being_updated = false;
-    bool is_changed = true;             // have new changes that need to be sent to the client and database
-    bool need_save_to_database = true;  // have new changes that need only to be saved to the database
-    bool is_update_basic_group_sent = false;
-
-    bool is_repaired = false;  // whether cached value is rechecked
-
-    bool is_saved = false;        // is current chat version being saved/is saved to the database
-    bool is_being_saved = false;  // is current chat being saved to the database
-
-    bool is_received_from_server = false;  // true, if the chat was received from the server and not the database
-
-    uint64 log_event_id = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  // do not forget to update drop_chat_full and on_get_chat_full
-  struct ChatFull {
-    int32 version = -1;
-    UserId creator_user_id;
-    vector<DialogParticipant> participants;
-
-    Photo photo;
-    vector<FileId> registered_photo_file_ids;
-    FileSourceId file_source_id;
-
-    string description;
-
-    DialogInviteLink invite_link;
-
-    vector<BotCommands> bot_commands;
-
-    bool can_set_username = false;
-
-    bool is_being_updated = false;
-    bool is_changed = true;             // have new changes that need to be sent to the client and database
-    bool need_send_update = true;       // have new changes that need only to be sent to the client
-    bool need_save_to_database = true;  // have new changes that need only to be saved to the database
-    bool is_update_chat_full_sent = false;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct Channel {
-    int64 access_hash = 0;
-    string title;
-    DialogPhoto photo;
-    unique_ptr<EmojiStatus> emoji_status;
-    unique_ptr<EmojiStatus> last_sent_emoji_status;
-    AccentColorId accent_color_id;
-    CustomEmojiId background_custom_emoji_id;
-    AccentColorId profile_accent_color_id;
-    CustomEmojiId profile_background_custom_emoji_id;
-    Usernames usernames;
-    vector<RestrictionReason> restriction_reasons;
-    DialogParticipantStatus status = DialogParticipantStatus::Banned(0);
-    RestrictedRights default_permissions{false, false, false, false, false, false, false, false, false,
-                                         false, false, false, false, false, false, false, false, ChannelType::Unknown};
-    int32 date = 0;
-    int32 participant_count = 0;
-    int32 boost_level = 0;
-    int64 paid_message_star_count = 0;
-    CustomEmojiId bot_verification_icon;
-
-    double max_active_story_id_next_reload_time = 0.0;
-    StoryId max_active_story_id;
-    StoryId max_read_story_id;
-
-    static constexpr uint32 CACHE_VERSION = 10;
-    uint32 cache_version = 0;
-
-    bool has_linked_channel = false;
-    bool has_location = false;
-    bool sign_messages = false;
-    bool show_message_sender = false;
-    bool is_slow_mode_enabled = false;
-    bool noforwards = false;
-    bool can_be_deleted = false;
-    bool join_to_send = false;
-    bool join_request = false;
-    bool stories_hidden = false;
-
-    bool is_megagroup = false;
-    bool is_gigagroup = false;
-    bool is_forum = false;
-    bool is_verified = false;
-    bool is_scam = false;
-    bool is_fake = false;
-
-    bool is_title_changed = true;
-    bool is_username_changed = true;
-    bool is_photo_changed = true;
-    bool is_emoji_status_changed = true;
-    bool is_accent_color_changed = true;
-    bool is_default_permissions_changed = true;
-    bool is_status_changed = true;
-    bool is_stories_hidden_changed = true;
-    bool is_has_location_changed = true;
-    bool is_noforwards_changed = true;
-    bool is_creator_changed = true;
-    bool had_read_access = true;
-    bool is_being_updated = false;
-    bool is_changed = true;             // have new changes that need to be sent to the client and database
-    bool need_save_to_database = true;  // have new changes that need only to be saved to the database
-    bool is_update_supergroup_sent = false;
-
-    bool is_repaired = false;  // whether cached value is rechecked
-
-    bool is_saved = false;        // is current channel version being saved/is saved to the database
-    bool is_being_saved = false;  // is current channel being saved to the database
-
-    bool is_received_from_server = false;  // true, if the channel was received from the server and not the database
-
-    uint64 log_event_id = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  // do not forget to update invalidate_channel_full and on_get_chat_full
-  struct ChannelFull {
-    Photo photo;
-    vector<FileId> registered_photo_file_ids;
-    FileSourceId file_source_id;
-
-    string description;
-    int32 participant_count = 0;
-    int32 administrator_count = 0;
-    int32 restricted_count = 0;
-    int32 banned_count = 0;
-    int32 boost_count = 0;
-    int32 unrestrict_boost_count = 0;
-    int32 gift_count = 0;
-
-    DialogInviteLink invite_link;
-
-    vector<BotCommands> bot_commands;
-    unique_ptr<BotVerification> bot_verification;
-
-    uint32 speculative_version = 1;
-    uint32 repair_request_version = 0;
-
-    StickerSetId sticker_set_id;
-    StickerSetId emoji_sticker_set_id;
-
-    ChannelId linked_channel_id;
-
-    DialogLocation location;
-
-    DcId stats_dc_id;
-
-    int32 slow_mode_delay = 0;
-    int32 slow_mode_next_send_date = 0;
-
-    MessageId migrated_from_max_message_id;
-    ChatId migrated_from_chat_id;
-
-    vector<UserId> bot_user_ids;
-
-    bool can_get_participants = false;
-    bool has_hidden_participants = false;
-    bool can_set_username = false;
-    bool can_set_sticker_set = false;
-    bool can_set_location = false;
-    bool can_view_statistics = false;
-    bool is_can_view_statistics_inited = false;
-    bool can_view_revenue = false;
-    bool can_view_star_revenue = false;
-    bool is_all_history_available = true;
-    bool can_have_sponsored_messages = true;
-    bool has_aggressive_anti_spam_enabled = false;
-    bool can_be_deleted = false;
-    bool has_pinned_stories = false;
-    bool has_paid_media_allowed = false;  // also used for paid reactions
-    bool has_stargifts_available = false;
-    bool has_paid_messages_available = false;
-
-    bool is_slow_mode_next_send_date_changed = true;
-    bool is_being_updated = false;
-    bool is_changed = true;             // have new changes that need to be sent to the client and database
-    bool need_send_update = true;       // have new changes that need only to be sent to the client
-    bool need_save_to_database = true;  // have new changes that need only to be saved to the database
-    bool is_update_channel_full_sent = false;
-
-    double expires_at = 0.0;
-
-    bool is_expired() const {
-      return expires_at < Time::now();
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-  class ChatLogEvent;
-  class ChannelLogEvent;
-
-  static constexpr size_t MAX_TITLE_LENGTH = 128;        // server side limit for chat title
-  static constexpr size_t MAX_DESCRIPTION_LENGTH = 255;  // server side limit for chat/channel description
-
-  static constexpr int32 MAX_ACTIVE_STORY_ID_RELOAD_TIME = 3600;  // some reasonable limit
-
-  static constexpr int32 CHANNEL_FULL_EXPIRE_TIME = 60;
-
-  static bool have_input_peer_chat(const Chat *c, AccessRights access_rights);
-
-  bool have_input_peer_channel(const Channel *c, ChannelId channel_id, AccessRights access_rights,
-                               bool from_linked = false) const;
-
-  const Chat *get_chat(ChatId chat_id) const;
-  Chat *get_chat(ChatId chat_id);
-  Chat *get_chat_force(ChatId chat_id, const char *source);
-
-  Chat *add_chat(ChatId chat_id);
-
-  const ChatFull *get_chat_full(ChatId chat_id) const;
-  ChatFull *get_chat_full(ChatId chat_id);
-  ChatFull *get_chat_full_force(ChatId chat_id, const char *source);
-
-  ChatFull *add_chat_full(ChatId chat_id);
-
-  void send_get_chat_full_query(ChatId chat_id, Promise<Unit> &&promise, const char *source);
-
-  const Channel *get_channel(ChannelId channel_id) const;
-  Channel *get_channel(ChannelId channel_id);
-  Channel *get_channel_force(ChannelId channel_id, const char *source);
-
-  Channel *add_channel(ChannelId channel_id, const char *source);
-
-  const ChannelFull *get_channel_full(ChannelId channel_id) const;
-  const ChannelFull *get_channel_full_const(ChannelId channel_id) const;
-  ChannelFull *get_channel_full(ChannelId channel_id, bool only_local, const char *source);
-  ChannelFull *get_channel_full_force(ChannelId channel_id, bool only_local, const char *source);
-
-  ChannelFull *add_channel_full(ChannelId channel_id);
-
-  void send_get_channel_full_query(ChannelFull *channel_full, ChannelId channel_id, Promise<Unit> &&promise,
-                                   const char *source);
-
-  static DialogParticipantStatus get_chat_status(const Chat *c);
-  DialogParticipantStatus get_chat_permissions(const Chat *c) const;
-
-  static ChannelType get_channel_type(const Channel *c);
-  static DialogParticipantStatus get_channel_status(const Channel *c);
-  DialogParticipantStatus get_channel_permissions(ChannelId channel_id, const Channel *c) const;
-  td_api::object_ptr<td_api::verificationStatus> get_channel_verification_status_object(const Channel *c) const;
-  static bool get_channel_sign_messages(const Channel *c);
-  static bool get_channel_show_message_sender(const Channel *c);
-  static bool get_channel_has_linked_channel(const Channel *c);
-  static bool get_channel_can_be_deleted(const Channel *c);
-  static bool get_channel_join_to_send(const Channel *c);
-  static bool get_channel_join_request(const Channel *c);
-
-  void on_update_chat_status(Chat *c, ChatId chat_id, DialogParticipantStatus status);
-  static void on_update_chat_default_permissions(Chat *c, ChatId chat_id, RestrictedRights default_permissions,
-                                                 int32 version);
-  void on_update_chat_participant_count(Chat *c, ChatId chat_id, int32 participant_count, int32 version,
-                                        const string &debug_str);
-  void on_update_chat_photo(Chat *c, ChatId chat_id, tl_object_ptr<telegram_api::ChatPhoto> &&chat_photo_ptr);
-  void on_update_chat_photo(Chat *c, ChatId chat_id, DialogPhoto &&photo, bool invalidate_photo_cache);
-  static void on_update_chat_title(Chat *c, ChatId chat_id, string &&title);
-  static void on_update_chat_active(Chat *c, ChatId chat_id, bool is_active);
-  static void on_update_chat_migrated_to_channel_id(Chat *c, ChatId chat_id, ChannelId migrated_to_channel_id);
-  static void on_update_chat_noforwards(Chat *c, ChatId chat_id, bool noforwards);
-
-  void on_update_chat_full_photo(ChatFull *chat_full, ChatId chat_id, Photo photo);
-  bool on_update_chat_full_participants_short(ChatFull *chat_full, ChatId chat_id, int32 version);
-  void on_update_chat_full_participants(ChatFull *chat_full, ChatId chat_id, vector<DialogParticipant> participants,
-                                        int32 version, bool from_update);
-  void on_update_chat_full_invite_link(ChatFull *chat_full,
-                                       tl_object_ptr<telegram_api::ExportedChatInvite> &&invite_link);
-
-  void on_update_channel_photo(Channel *c, ChannelId channel_id,
-                               tl_object_ptr<telegram_api::ChatPhoto> &&chat_photo_ptr);
-  void on_update_channel_photo(Channel *c, ChannelId channel_id, DialogPhoto &&photo, bool invalidate_photo_cache);
-  void on_update_channel_emoji_status(Channel *c, ChannelId channel_id, unique_ptr<EmojiStatus> emoji_status);
-  void on_update_channel_accent_color_id(Channel *c, ChannelId channel_id, AccentColorId accent_color_id);
-  void on_update_channel_background_custom_emoji_id(Channel *c, ChannelId channel_id,
-                                                    CustomEmojiId background_custom_emoji_id);
-  void on_update_channel_profile_accent_color_id(Channel *c, ChannelId channel_id,
-                                                 AccentColorId profile_accent_color_id);
-  void on_update_channel_profile_background_custom_emoji_id(Channel *c, ChannelId channel_id,
-                                                            CustomEmojiId profile_background_custom_emoji_id);
-  static void on_update_channel_title(Channel *c, ChannelId channel_id, string &&title);
-  void on_update_channel_usernames(Channel *c, ChannelId channel_id, Usernames &&usernames);
-  void on_update_channel_status(Channel *c, ChannelId channel_id, DialogParticipantStatus &&status);
-  static void on_update_channel_default_permissions(Channel *c, ChannelId channel_id,
-                                                    RestrictedRights default_permissions);
-  static void on_update_channel_has_location(Channel *c, ChannelId channel_id, bool has_location);
-  static void on_update_channel_noforwards(Channel *c, ChannelId channel_id, bool noforwards);
-  void on_update_channel_stories_hidden(Channel *c, ChannelId channel_id, bool stories_hidden);
-  void on_update_channel_story_ids_impl(Channel *c, ChannelId channel_id, StoryId max_active_story_id,
-                                        StoryId max_read_story_id);
-  void on_update_channel_max_read_story_id(Channel *c, ChannelId channel_id, StoryId max_read_story_id);
-  void on_update_channel_bot_verification_icon(Channel *c, ChannelId channel_id, CustomEmojiId bot_verification_icon);
-
-  void on_update_channel_full_photo(ChannelFull *channel_full, ChannelId channel_id, Photo photo);
-  void on_update_channel_full_invite_link(ChannelFull *channel_full,
-                                          tl_object_ptr<telegram_api::ExportedChatInvite> &&invite_link);
-  void on_update_channel_full_linked_channel_id(ChannelFull *channel_full, ChannelId channel_id,
-                                                ChannelId linked_channel_id);
-  void on_update_channel_full_location(ChannelFull *channel_full, ChannelId channel_id, const DialogLocation &location);
-  void on_update_channel_full_slow_mode_delay(ChannelFull *channel_full, ChannelId channel_id, int32 slow_mode_delay,
-                                              int32 slow_mode_next_send_date);
-  static void on_update_channel_full_slow_mode_next_send_date(ChannelFull *channel_full,
-                                                              int32 slow_mode_next_send_date);
-  static void on_update_channel_full_bot_user_ids(ChannelFull *channel_full, ChannelId channel_id,
-                                                  vector<UserId> &&bot_user_ids);
-
-  void on_channel_status_changed(Channel *c, ChannelId channel_id, const DialogParticipantStatus &old_status,
-                                 const DialogParticipantStatus &new_status);
-  void on_channel_usernames_changed(const Channel *c, ChannelId channel_id, const Usernames &old_usernames,
-                                    const Usernames &new_usernames);
-
-  void remove_linked_channel_id(ChannelId channel_id);
-  ChannelId get_linked_channel_id(ChannelId channel_id) const;
-
-  static bool speculative_add_count(int32 &count, int32 delta_count, int32 min_count = 0);
-
-  void speculative_add_channel_participant_count(ChannelId channel_id, int32 delta_participant_count, bool by_me);
-
-  void drop_chat_full(ChatId chat_id);
-
-  void do_invalidate_channel_full(ChannelFull *channel_full, ChannelId channel_id, bool need_drop_slow_mode_delay);
-
-  void update_chat_online_member_count(const ChatFull *chat_full, ChatId chat_id, bool is_from_server);
-
-  void on_get_chat_empty(telegram_api::chatEmpty &chat, const char *source);
-  void on_get_chat(telegram_api::chat &chat, const char *source);
-  void on_get_chat_forbidden(telegram_api::chatForbidden &chat, const char *source);
-  void on_get_channel(telegram_api::channel &channel, const char *source);
-  void on_get_channel_forbidden(telegram_api::channelForbidden &channel, const char *source);
-
-  void save_chat(Chat *c, ChatId chat_id, bool from_binlog);
-  static string get_chat_database_key(ChatId chat_id);
-  static string get_chat_database_value(const Chat *c);
-  void save_chat_to_database(Chat *c, ChatId chat_id);
-  void save_chat_to_database_impl(Chat *c, ChatId chat_id, string value);
-  void on_save_chat_to_database(ChatId chat_id, bool success);
-  void load_chat_from_database(Chat *c, ChatId chat_id, Promise<Unit> promise);
-  void load_chat_from_database_impl(ChatId chat_id, Promise<Unit> promise);
-  void on_load_chat_from_database(ChatId chat_id, string value, bool force);
-
-  void save_channel(Channel *c, ChannelId channel_id, bool from_binlog);
-  static string get_channel_database_key(ChannelId channel_id);
-  static string get_channel_database_value(const Channel *c);
-  void save_channel_to_database(Channel *c, ChannelId channel_id);
-  void save_channel_to_database_impl(Channel *c, ChannelId channel_id, string value);
-  void on_save_channel_to_database(ChannelId channel_id, bool success);
-  void load_channel_from_database(Channel *c, ChannelId channel_id, Promise<Unit> promise);
-  void load_channel_from_database_impl(ChannelId channel_id, Promise<Unit> promise);
-  void on_load_channel_from_database(ChannelId channel_id, string value, bool force);
-
-  static void save_chat_full(const ChatFull *chat_full, ChatId chat_id);
-  static string get_chat_full_database_key(ChatId chat_id);
-  static string get_chat_full_database_value(const ChatFull *chat_full);
-  void on_load_chat_full_from_database(ChatId chat_id, string value);
-
-  static void save_channel_full(const ChannelFull *channel_full, ChannelId channel_id);
-  static string get_channel_full_database_key(ChannelId channel_id);
-  static string get_channel_full_database_value(const ChannelFull *channel_full);
-  void on_load_channel_full_from_database(ChannelId channel_id, string value, const char *source);
-
-  void update_chat(Chat *c, ChatId chat_id, bool from_binlog = false, bool from_database = false);
-  void update_channel(Channel *c, ChannelId channel_id, bool from_binlog = false, bool from_database = false);
-
-  void update_chat_full(ChatFull *chat_full, ChatId chat_id, const char *source, bool from_database = false);
-  void update_channel_full(ChannelFull *channel_full, ChannelId channel_id, const char *source,
-                           bool from_database = false);
-
-  bool is_chat_full_outdated(const ChatFull *chat_full, const Chat *c, ChatId chat_id, bool only_participants) const;
-
-  static bool is_channel_public(const Channel *c);
-
-  static bool is_suitable_created_public_channel(PublicDialogType type, const Channel *c);
-
-  static void return_created_public_dialogs(Promise<td_api::object_ptr<td_api::chats>> &&promise,
-                                            const vector<ChannelId> &channel_ids);
-
-  void finish_get_created_public_dialogs(PublicDialogType type, Result<Unit> &&result);
-
-  void update_created_public_channels(Channel *c, ChannelId channel_id);
-
-  void save_created_public_channels(PublicDialogType type);
-
-  bool update_permanent_invite_link(DialogInviteLink &invite_link, DialogInviteLink new_invite_link);
-
-  static const DialogParticipant *get_chat_full_participant(const ChatFull *chat_full, DialogId dialog_id);
-
-  void finish_get_chat_participant(ChatId chat_id, UserId user_id, Promise<DialogParticipant> &&promise);
-
-  td_api::object_ptr<td_api::updateBasicGroup> get_update_basic_group_object(ChatId chat_id, const Chat *c);
-
-  static td_api::object_ptr<td_api::updateBasicGroup> get_update_unknown_basic_group_object(ChatId chat_id);
-
-  tl_object_ptr<td_api::basicGroup> get_basic_group_object(ChatId chat_id, const Chat *c);
-
-  tl_object_ptr<td_api::basicGroup> get_basic_group_object_const(ChatId chat_id, const Chat *c) const;
-
-  tl_object_ptr<td_api::basicGroupFullInfo> get_basic_group_full_info_object(ChatId chat_id,
-                                                                             const ChatFull *chat_full) const;
-
-  bool need_poll_channel_active_stories(const Channel *c, ChannelId channel_id) const;
-
-  static bool get_channel_has_unread_stories(const Channel *c);
-
-  td_api::object_ptr<td_api::updateSupergroup> get_update_supergroup_object(ChannelId channel_id,
-                                                                            const Channel *c) const;
-
-  td_api::object_ptr<td_api::updateSupergroup> get_update_unknown_supergroup_object(ChannelId channel_id) const;
-
-  td_api::object_ptr<td_api::supergroup> get_supergroup_object(ChannelId channel_id, const Channel *c) const;
-
-  Status can_hide_chat_participants(ChatId chat_id) const;
-
-  Status can_hide_channel_participants(ChannelId channel_id, const ChannelFull *channel_full) const;
-
-  Status can_toggle_chat_aggressive_anti_spam(ChatId chat_id) const;
-
-  Status can_toggle_channel_aggressive_anti_spam(ChannelId channel_id, const ChannelFull *channel_full) const;
-
-  tl_object_ptr<td_api::supergroupFullInfo> get_supergroup_full_info_object(ChannelId channel_id,
-                                                                            const ChannelFull *channel_full) const;
-
-  vector<DialogId> get_dialog_ids(vector<tl_object_ptr<telegram_api::Chat>> &&chats, const char *source);
-
-  void on_create_inactive_channels(vector<ChannelId> &&channel_ids, Promise<Unit> &&promise);
-
-  void update_dialogs_for_discussion(DialogId dialog_id, bool is_suitable);
-
-  void get_channel_statistics_dc_id_impl(ChannelId channel_id, bool for_full_statistics, Promise<DcId> &&promise);
-
-  static void on_channel_emoji_status_timeout_callback(void *chat_manager_ptr, int64 channel_id_long);
-
-  static void on_channel_unban_timeout_callback(void *chat_manager_ptr, int64 channel_id_long);
-
-  static void on_slow_mode_delay_timeout_callback(void *chat_manager_ptr, int64 channel_id_long);
-
-  void on_channel_emoji_status_timeout(ChannelId channel_id);
-
-  void on_channel_unban_timeout(ChannelId channel_id);
-
-  void on_slow_mode_delay_timeout(ChannelId channel_id);
-
-  void tear_down() final;
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  WaitFreeHashMap<ChatId, unique_ptr<Chat>, ChatIdHash> chats_;
-  WaitFreeHashMap<ChatId, unique_ptr<ChatFull>, ChatIdHash> chats_full_;
-  mutable FlatHashSet<ChatId, ChatIdHash> unknown_chats_;
-  WaitFreeHashMap<ChatId, FileSourceId, ChatIdHash> chat_full_file_source_ids_;
-
-  WaitFreeHashMap<ChannelId, unique_ptr<MinChannel>, ChannelIdHash> min_channels_;
-  WaitFreeHashMap<ChannelId, unique_ptr<Channel>, ChannelIdHash> channels_;
-  WaitFreeHashMap<ChannelId, unique_ptr<ChannelFull>, ChannelIdHash> channels_full_;
-  mutable FlatHashSet<ChannelId, ChannelIdHash> unknown_channels_;
-  WaitFreeHashSet<ChannelId, ChannelIdHash> invalidated_channels_full_;
-  WaitFreeHashMap<ChannelId, FileSourceId, ChannelIdHash> channel_full_file_source_ids_;
-
-  bool created_public_channels_inited_[3] = {false, false, false};
-  vector<ChannelId> created_public_channels_[3];
-  vector<Promise<td_api::object_ptr<td_api::chats>>> get_created_public_channels_queries_[3];
-
-  bool dialogs_for_discussion_inited_ = false;
-  vector<DialogId> dialogs_for_discussion_;
-
-  bool inactive_channel_ids_inited_ = false;
-  vector<ChannelId> inactive_channel_ids_;
-
-  FlatHashMap<ChatId, vector<Promise<Unit>>, ChatIdHash> load_chat_from_database_queries_;
-  FlatHashSet<ChatId, ChatIdHash> loaded_from_database_chats_;
-  FlatHashSet<ChatId, ChatIdHash> unavailable_chat_fulls_;
-
-  FlatHashMap<ChannelId, vector<Promise<Unit>>, ChannelIdHash> load_channel_from_database_queries_;
-  FlatHashSet<ChannelId, ChannelIdHash> loaded_from_database_channels_;
-  FlatHashSet<ChannelId, ChannelIdHash> unavailable_channel_fulls_;
-
-  QueryMerger get_chat_queries_{"GetChatMerger", 3, 50};
-  QueryMerger get_channel_queries_{"GetChannelMerger", 100, 1};  // can't merge getChannel queries without access hash
-
-  QueryCombiner get_chat_full_queries_{"GetChatFullCombiner", 2.0};
-
-  FlatHashMap<ChannelId, FlatHashSet<MessageFullId, MessageFullIdHash>, ChannelIdHash> channel_messages_;
-
-  WaitFreeHashMap<ChannelId, ChannelId, ChannelIdHash> linked_channel_ids_;
-
-  WaitFreeHashSet<ChannelId, ChannelIdHash> restricted_channel_ids_;
-
-  MultiTimeout channel_emoji_status_timeout_{"ChannelEmojiStatusTimeout"};
-  MultiTimeout channel_unban_timeout_{"ChannelUnbanTimeout"};
-  MultiTimeout slow_mode_delay_timeout_{"SlowModeDelayTimeout"};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChatReactions.cpp b/third-party/td/td/td/telegram/ChatReactions.cpp
deleted file mode 100644
index c87c064cc0..0000000000
--- a/third-party/td/td/td/telegram/ChatReactions.cpp
+++ /dev/null
@@ -1,160 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ChatReactions.h"
-
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-bool ChatReactions::remove_paid_reactions() {
-  return td::remove_if(reaction_types_,
-                       [&](const ReactionType &reaction_type) { return reaction_type.is_paid_reaction(); });
-}
-
-ChatReactions::ChatReactions(telegram_api::object_ptr<telegram_api::ChatReactions> &&chat_reactions_ptr,
-                             int32 reactions_limit, bool paid_reactions_available)
-    : paid_reactions_available_(paid_reactions_available) {
-  if (chat_reactions_ptr == nullptr) {
-    return;
-  }
-  switch (chat_reactions_ptr->get_id()) {
-    case telegram_api::chatReactionsNone::ID:
-      break;
-    case telegram_api::chatReactionsAll::ID: {
-      auto chat_reactions = move_tl_object_as<telegram_api::chatReactionsAll>(chat_reactions_ptr);
-      allow_all_regular_ = true;
-      allow_all_custom_ = chat_reactions->allow_custom_;
-      break;
-    }
-    case telegram_api::chatReactionsSome::ID: {
-      auto chat_reactions = move_tl_object_as<telegram_api::chatReactionsSome>(chat_reactions_ptr);
-      reaction_types_ = ReactionType::get_reaction_types(chat_reactions->reactions_);
-      if (remove_paid_reactions()) {
-        LOG(ERROR) << "Receive paid reaction allowed";
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  reactions_limit_ = reactions_limit;
-}
-
-ChatReactions::ChatReactions(td_api::object_ptr<td_api::ChatAvailableReactions> &&chat_reactions_ptr,
-                             bool allow_all_custom) {
-  if (chat_reactions_ptr == nullptr) {
-    return;
-  }
-  switch (chat_reactions_ptr->get_id()) {
-    case td_api::chatAvailableReactionsAll::ID: {
-      auto chat_reactions = move_tl_object_as<td_api::chatAvailableReactionsAll>(chat_reactions_ptr);
-      allow_all_regular_ = true;
-      allow_all_custom_ = allow_all_custom;
-      reactions_limit_ = chat_reactions->max_reaction_count_;
-      break;
-    }
-    case td_api::chatAvailableReactionsSome::ID: {
-      auto chat_reactions = move_tl_object_as<td_api::chatAvailableReactionsSome>(chat_reactions_ptr);
-      reaction_types_ = ReactionType::get_reaction_types(chat_reactions->reactions_);
-      reactions_limit_ = chat_reactions->max_reaction_count_;
-      paid_reactions_available_ = remove_paid_reactions();
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-ChatReactions ChatReactions::get_active_reactions(
-    const FlatHashMap<ReactionType, size_t, ReactionTypeHash> &active_reaction_pos) const {
-  ChatReactions result = *this;
-  if (!reaction_types_.empty()) {
-    CHECK(!allow_all_regular_);
-    CHECK(!allow_all_custom_);
-    td::remove_if(result.reaction_types_, [&](const ReactionType &reaction_type) {
-      return !reaction_type.is_active_reaction(active_reaction_pos);
-    });
-  }
-  return result;
-}
-
-void ChatReactions::fix_broadcast_reactions(const vector<ReactionType> &active_reaction_types) {
-  if (allow_all_regular_) {
-    reaction_types_ = active_reaction_types;
-    allow_all_regular_ = false;
-    allow_all_custom_ = false;
-  }
-}
-
-bool ChatReactions::is_allowed_reaction_type(const ReactionType &reaction_type) const {
-  CHECK(!allow_all_regular_);
-  if (allow_all_custom_ && reaction_type.is_custom_reaction()) {
-    return true;
-  }
-  if (reaction_type.is_paid_reaction() && paid_reactions_available_) {
-    return true;
-  }
-  return td::contains(reaction_types_, reaction_type);
-}
-
-td_api::object_ptr<td_api::ChatAvailableReactions> ChatReactions::get_chat_available_reactions_object(Td *td) const {
-  auto reactions_uniq_max = static_cast<int32>(td->option_manager_->get_option_integer("reactions_uniq_max", 11));
-  if (0 < reactions_limit_ && reactions_limit_ < reactions_uniq_max) {
-    reactions_uniq_max = reactions_limit_;
-  }
-  if (allow_all_regular_) {
-    LOG_IF(ERROR, paid_reactions_available_) << "Have paid reaction in a non-channel chat";
-    return td_api::make_object<td_api::chatAvailableReactionsAll>(reactions_uniq_max);
-  }
-  return td_api::make_object<td_api::chatAvailableReactionsSome>(
-      ReactionType::get_reaction_types_object(reaction_types_, paid_reactions_available_), reactions_uniq_max);
-}
-
-telegram_api::object_ptr<telegram_api::ChatReactions> ChatReactions::get_input_chat_reactions() const {
-  if (allow_all_regular_) {
-    return telegram_api::make_object<telegram_api::chatReactionsAll>(0, allow_all_custom_);
-  }
-  if (!reaction_types_.empty()) {
-    return telegram_api::make_object<telegram_api::chatReactionsSome>(
-        ReactionType::get_input_reactions(reaction_types_));
-  }
-  return telegram_api::make_object<telegram_api::chatReactionsNone>();
-}
-
-void ChatReactions::ignore_non_paid_reaction_types() {
-  reaction_types_.clear();
-  allow_all_regular_ = false;
-  allow_all_custom_ = false;
-}
-
-bool operator==(const ChatReactions &lhs, const ChatReactions &rhs) {
-  // don't compare allow_all_custom_
-  return lhs.reaction_types_ == rhs.reaction_types_ && lhs.allow_all_regular_ == rhs.allow_all_regular_ &&
-         lhs.reactions_limit_ == rhs.reactions_limit_ && lhs.paid_reactions_available_ == rhs.paid_reactions_available_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ChatReactions &reactions) {
-  if (reactions.reactions_limit_ != 0) {
-    string_builder << '[' << reactions.reactions_limit_ << "] ";
-  }
-  if (reactions.paid_reactions_available_) {
-    string_builder << "Paid";
-  }
-  if (reactions.allow_all_regular_) {
-    if (reactions.allow_all_custom_) {
-      return string_builder << "AllReactions";
-    }
-    return string_builder << "AllRegularReactions";
-  }
-  return string_builder << '[' << reactions.reaction_types_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChatReactions.h b/third-party/td/td/td/telegram/ChatReactions.h
deleted file mode 100644
index 4ac9d56da5..0000000000
--- a/third-party/td/td/td/telegram/ChatReactions.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-struct ChatReactions {
-  vector<ReactionType> reaction_types_;
-  bool allow_all_regular_ = false;  // implies empty reaction_types_
-  bool allow_all_custom_ = false;   // implies allow_all_regular_
-  int32 reactions_limit_ = 0;
-  bool paid_reactions_available_ = false;
-
-  ChatReactions() = default;
-
-  static ChatReactions legacy(vector<ReactionType> &&reactions) {
-    ChatReactions result;
-    result.reaction_types_ = std::move(reactions);
-    return result;
-  }
-
-  ChatReactions(telegram_api::object_ptr<telegram_api::ChatReactions> &&chat_reactions_ptr, int32 reactions_limit,
-                bool paid_reactions_available);
-
-  ChatReactions(td_api::object_ptr<td_api::ChatAvailableReactions> &&chat_reactions_ptr, bool allow_all_custom);
-
-  ChatReactions(bool allow_all_regular, bool allow_all_custom)
-      : allow_all_regular_(allow_all_regular), allow_all_custom_(allow_all_custom) {
-  }
-
-  ChatReactions get_active_reactions(
-      const FlatHashMap<ReactionType, size_t, ReactionTypeHash> &active_reaction_pos) const;
-
-  void fix_broadcast_reactions(const vector<ReactionType> &active_reaction_types);
-
-  bool is_allowed_reaction_type(const ReactionType &reaction) const;
-
-  telegram_api::object_ptr<telegram_api::ChatReactions> get_input_chat_reactions() const;
-
-  td_api::object_ptr<td_api::ChatAvailableReactions> get_chat_available_reactions_object(Td *td) const;
-
-  bool empty() const {
-    return reaction_types_.empty() && !allow_all_regular_ && !paid_reactions_available_;
-  }
-
-  void ignore_non_paid_reaction_types();
-
-  bool remove_paid_reactions();
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ChatReactions &lhs, const ChatReactions &rhs);
-
-inline bool operator!=(const ChatReactions &lhs, const ChatReactions &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ChatReactions &reactions);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ChatReactions.hpp b/third-party/td/td/td/telegram/ChatReactions.hpp
deleted file mode 100644
index cc39ca27d5..0000000000
--- a/third-party/td/td/td/telegram/ChatReactions.hpp
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChatReactions.h"
-#include "td/telegram/ReactionType.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ChatReactions::store(StorerT &storer) const {
-  bool has_reactions = !reaction_types_.empty();
-  bool has_reactions_limit = reactions_limit_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(allow_all_regular_);
-  STORE_FLAG(allow_all_custom_);
-  STORE_FLAG(has_reactions);
-  STORE_FLAG(has_reactions_limit);
-  STORE_FLAG(paid_reactions_available_);
-  END_STORE_FLAGS();
-  if (has_reactions) {
-    td::store(reaction_types_, storer);
-  }
-  if (has_reactions_limit) {
-    td::store(reactions_limit_, storer);
-  }
-}
-
-template <class ParserT>
-void ChatReactions::parse(ParserT &parser) {
-  bool has_reactions;
-  bool has_reactions_limit;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(allow_all_regular_);
-  PARSE_FLAG(allow_all_custom_);
-  PARSE_FLAG(has_reactions);
-  PARSE_FLAG(has_reactions_limit);
-  PARSE_FLAG(paid_reactions_available_);
-  END_PARSE_FLAGS();
-  if (has_reactions) {
-    td::parse(reaction_types_, parser);
-  }
-  if (has_reactions_limit) {
-    td::parse(reactions_limit_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Client.cpp b/third-party/td/td/td/telegram/Client.cpp
deleted file mode 100644
index 8cf3a72522..0000000000
--- a/third-party/td/td/td/telegram/Client.cpp
+++ /dev/null
@@ -1,725 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Client.h"
-
-#include "td/telegram/Td.h"
-#include "td/telegram/TdCallback.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/MpscPollableQueue.h"
-#include "td/utils/port/RwMutex.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <atomic>
-#include <limits>
-#include <memory>
-#include <mutex>
-#include <queue>
-
-namespace td {
-
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-class TdReceiver {
- public:
-  ClientManager::Response receive(double timeout) {
-    if (!responses_.empty()) {
-      auto result = std::move(responses_.front());
-      responses_.pop();
-      return result;
-    }
-    return {0, 0, nullptr};
-  }
-
-  unique_ptr<TdCallback> create_callback(ClientManager::ClientId client_id) {
-    class Callback final : public TdCallback {
-     public:
-      Callback(ClientManager::ClientId client_id, TdReceiver *impl) : client_id_(client_id), impl_(impl) {
-      }
-      void on_result(uint64 id, td_api::object_ptr<td_api::Object> result) final {
-        impl_->responses_.push({client_id_, id, std::move(result)});
-      }
-      void on_error(uint64 id, td_api::object_ptr<td_api::error> error) final {
-        impl_->responses_.push({client_id_, id, std::move(error)});
-      }
-      Callback(const Callback &) = delete;
-      Callback &operator=(const Callback &) = delete;
-      Callback(Callback &&) = delete;
-      Callback &operator=(Callback &&) = delete;
-      ~Callback() final {
-        impl_->responses_.push({client_id_, 0, nullptr});
-      }
-
-     private:
-      ClientManager::ClientId client_id_;
-      TdReceiver *impl_;
-    };
-    return td::make_unique<Callback>(client_id, this);
-  }
-
-  void add_response(ClientManager::ClientId client_id, uint64 id, td_api::object_ptr<td_api::Object> result) {
-    responses_.push({client_id, id, std::move(result)});
-  }
-
- private:
-  std::queue<ClientManager::Response> responses_;
-};
-
-class ClientManager::Impl final {
- public:
-  ClientId create_client_id() {
-    CHECK(client_id_ != std::numeric_limits<ClientId>::max());
-    auto client_id = ++client_id_;
-    pending_clients_.insert(client_id);
-    return client_id;
-  }
-
-  void send(ClientId client_id, RequestId request_id, td_api::object_ptr<td_api::Function> &&request) {
-    if (pending_clients_.erase(client_id) != 0) {
-      if (tds_.empty()) {
-        CHECK(concurrent_scheduler_ == nullptr);
-        CHECK(options_.net_query_stats == nullptr);
-        options_.net_query_stats = std::make_shared<NetQueryStats>();
-        concurrent_scheduler_ = make_unique<ConcurrentScheduler>(0, 0);
-        concurrent_scheduler_->start();
-      }
-      tds_[client_id] =
-          concurrent_scheduler_->create_actor_unsafe<Td>(0, "Td", receiver_.create_callback(client_id), options_);
-    }
-    requests_.push_back({client_id, request_id, std::move(request)});
-  }
-
-  Response receive(double timeout) {
-    if (!requests_.empty()) {
-      for (size_t i = 0; i < requests_.size(); i++) {
-        auto &request = requests_[i];
-        if (request.client_id <= 0 || request.client_id > client_id_) {
-          receiver_.add_response(request.client_id, request.id,
-                                 td_api::make_object<td_api::error>(400, "Invalid TDLib instance specified"));
-          continue;
-        }
-        auto it = tds_.find(request.client_id);
-        if (it == tds_.end() || it->second.empty()) {
-          receiver_.add_response(request.client_id, request.id,
-                                 td_api::make_object<td_api::error>(500, "Request aborted"));
-          continue;
-        }
-
-        CHECK(concurrent_scheduler_ != nullptr);
-        auto guard = concurrent_scheduler_->get_main_guard();
-        send_closure_later(it->second, &Td::request, request.id, std::move(request.request));
-      }
-      requests_.clear();
-    }
-
-    auto response = receiver_.receive(0);
-    if (response.client_id == 0 && response.request_id == 0 && concurrent_scheduler_ != nullptr) {
-      concurrent_scheduler_->run_main(0);
-      response = receiver_.receive(0);
-    } else {
-      ConcurrentScheduler::emscripten_clear_main_timeout();
-    }
-    if (response.request_id == 0 && response.object != nullptr &&
-        response.object->get_id() == td_api::updateAuthorizationState::ID &&
-        static_cast<const td_api::updateAuthorizationState *>(response.object.get())->authorization_state_->get_id() ==
-            td_api::authorizationStateClosed::ID) {
-      CHECK(concurrent_scheduler_ != nullptr);
-      auto guard = concurrent_scheduler_->get_main_guard();
-      auto it = tds_.find(response.client_id);
-      CHECK(it != tds_.end());
-      it->second.reset();
-
-      response.client_id = 0;
-      response.object = nullptr;
-    }
-    if (response.object == nullptr && response.client_id != 0 && response.request_id == 0) {
-      auto it = tds_.find(response.client_id);
-      CHECK(it != tds_.end());
-      CHECK(it->second.empty());
-      tds_.erase(it);
-
-      response.object = td_api::make_object<td_api::updateAuthorizationState>(
-          td_api::make_object<td_api::authorizationStateClosed>());
-
-      if (tds_.empty()) {
-        CHECK(options_.net_query_stats.use_count() == 1);
-        CHECK(options_.net_query_stats->get_count() == 0);
-        options_.net_query_stats = nullptr;
-        concurrent_scheduler_->finish();
-        concurrent_scheduler_ = nullptr;
-        reset_to_empty(tds_);
-      }
-    }
-    return response;
-  }
-
-  Impl() = default;
-  Impl(const Impl &) = delete;
-  Impl &operator=(const Impl &) = delete;
-  Impl(Impl &&) = delete;
-  Impl &operator=(Impl &&) = delete;
-  ~Impl() {
-    if (concurrent_scheduler_ == nullptr) {
-      return;
-    }
-
-    {
-      auto guard = concurrent_scheduler_->get_main_guard();
-      for (auto &td : tds_) {
-        td.second.reset();
-      }
-    }
-    while (!tds_.empty() && !ExitGuard::is_exited()) {
-      receive(0.1);
-    }
-    if (concurrent_scheduler_ != nullptr) {
-      concurrent_scheduler_->finish();
-    }
-  }
-
- private:
-  TdReceiver receiver_;
-  struct Request {
-    ClientId client_id;
-    RequestId id;
-    td_api::object_ptr<td_api::Function> request;
-  };
-  vector<Request> requests_;
-  unique_ptr<ConcurrentScheduler> concurrent_scheduler_;
-  ClientId client_id_{0};
-  Td::Options options_;
-  FlatHashSet<int32> pending_clients_;
-  FlatHashMap<int32, ActorOwn<Td>> tds_;
-};
-
-class Client::Impl final {
- public:
-  Impl() : client_id_(impl_.create_client_id()) {
-  }
-
-  void send(Request request) {
-    impl_.send(client_id_, request.id, std::move(request.function));
-  }
-
-  Response receive(double timeout) {
-    auto response = impl_.receive(timeout);
-
-    Response old_response;
-    old_response.id = response.request_id;
-    old_response.object = std::move(response.object);
-    return old_response;
-  }
-
- private:
-  ClientManager::Impl impl_;
-  ClientManager::ClientId client_id_;
-};
-
-#else
-
-class MultiTd final : public Actor {
- public:
-  explicit MultiTd(Td::Options options) : options_(std::move(options)) {
-  }
-  void create(int32 td_id, unique_ptr<TdCallback> callback) {
-    auto &td = tds_[td_id];
-    CHECK(td.empty());
-
-    string name = "Td";
-    auto context = std::make_shared<ActorContext>();
-    auto old_context = set_context(context);
-    auto old_tag = set_tag(to_string(td_id));
-    td = create_actor<Td>("Td", std::move(callback), options_);
-    set_context(std::move(old_context));
-    set_tag(std::move(old_tag));
-  }
-
-  void send(ClientManager::ClientId client_id, ClientManager::RequestId request_id,
-            td_api::object_ptr<td_api::Function> &&request) {
-    auto &td = tds_[client_id];
-    CHECK(!td.empty());
-    send_closure(td, &Td::request, request_id, std::move(request));
-  }
-
-  void close(int32 td_id) {
-    size_t erased_count = tds_.erase(td_id);
-    CHECK(erased_count > 0);
-  }
-
- private:
-  Td::Options options_;
-  FlatHashMap<int32, ActorOwn<Td>> tds_;
-};
-
-class TdReceiver {
- public:
-  TdReceiver() {
-    output_queue_ = std::make_shared<OutputQueue>();
-    output_queue_->init();
-  }
-
-  ClientManager::Response receive(double timeout, bool from_manager) {
-    VLOG(td_requests) << "Begin to wait for updates with timeout " << timeout;
-    auto is_locked = receive_lock_.exchange(true);
-    if (is_locked) {
-      if (from_manager) {
-        LOG(FATAL) << "Receive must not be called simultaneously from two different threads, but this has just "
-                      "happened. Call it from a fixed thread, dedicated for updates and response processing.";
-      } else {
-        LOG(FATAL) << "Receive is called after Client destroy, or simultaneously from different threads";
-      }
-    }
-    auto response = receive_unlocked(clamp(timeout, 0.0, 1000000.0));
-    is_locked = receive_lock_.exchange(false);
-    CHECK(is_locked);
-    VLOG(td_requests) << "End to wait for updates, returning object " << response.request_id << ' '
-                      << response.object.get();
-    return response;
-  }
-
-  unique_ptr<TdCallback> create_callback(ClientManager::ClientId client_id) {
-    class Callback final : public TdCallback {
-     public:
-      Callback(ClientManager::ClientId client_id, std::shared_ptr<OutputQueue> output_queue)
-          : client_id_(client_id), output_queue_(std::move(output_queue)) {
-      }
-      void on_result(uint64 id, td_api::object_ptr<td_api::Object> result) final {
-        output_queue_->writer_put({client_id_, id, std::move(result)});
-      }
-      void on_error(uint64 id, td_api::object_ptr<td_api::error> error) final {
-        output_queue_->writer_put({client_id_, id, std::move(error)});
-      }
-      Callback(const Callback &) = delete;
-      Callback &operator=(const Callback &) = delete;
-      Callback(Callback &&) = delete;
-      Callback &operator=(Callback &&) = delete;
-      ~Callback() final {
-        output_queue_->writer_put({client_id_, 0, nullptr});
-      }
-
-     private:
-      ClientManager::ClientId client_id_;
-      std::shared_ptr<OutputQueue> output_queue_;
-    };
-    return td::make_unique<Callback>(client_id, output_queue_);
-  }
-
-  void add_response(ClientManager::ClientId client_id, uint64 id, td_api::object_ptr<td_api::Object> result) {
-    output_queue_->writer_put({client_id, id, std::move(result)});
-  }
-
- private:
-  using OutputQueue = MpscPollableQueue<ClientManager::Response>;
-  std::shared_ptr<OutputQueue> output_queue_;
-  int output_queue_ready_cnt_{0};
-  std::atomic<bool> receive_lock_{false};
-
-  ClientManager::Response receive_unlocked(double timeout) {
-    if (output_queue_ready_cnt_ == 0) {
-      output_queue_ready_cnt_ = output_queue_->reader_wait_nonblock();
-    }
-    if (output_queue_ready_cnt_ > 0) {
-      output_queue_ready_cnt_--;
-      return output_queue_->reader_get_unsafe();
-    }
-    if (timeout != 0) {
-      output_queue_->reader_get_event_fd().wait(static_cast<int>(timeout * 1000));
-      return receive_unlocked(0);
-    }
-    return {0, 0, nullptr};
-  }
-};
-
-class MultiImpl {
- public:
-  static constexpr int32 ADDITIONAL_THREAD_COUNT = 3;
-
-  explicit MultiImpl(std::shared_ptr<NetQueryStats> net_query_stats) {
-    concurrent_scheduler_ = std::make_shared<ConcurrentScheduler>(ADDITIONAL_THREAD_COUNT, 0);
-    concurrent_scheduler_->start();
-
-    {
-      auto guard = concurrent_scheduler_->get_main_guard();
-      Td::Options options;
-      options.net_query_stats = std::move(net_query_stats);
-      multi_td_ = create_actor<MultiTd>("MultiTd", std::move(options));
-    }
-
-    scheduler_thread_ = thread([concurrent_scheduler = concurrent_scheduler_] {
-      while (concurrent_scheduler->run_main(10)) {
-      }
-    });
-  }
-  MultiImpl(const MultiImpl &) = delete;
-  MultiImpl &operator=(const MultiImpl &) = delete;
-  MultiImpl(MultiImpl &&) = delete;
-  MultiImpl &operator=(MultiImpl &&) = delete;
-
-  static int32 create_id() {
-    auto result = current_id_.fetch_add(1);
-    CHECK(result <= static_cast<uint32>(std::numeric_limits<int32>::max()));
-    return static_cast<int32>(result);
-  }
-
-  void create(int32 td_id, unique_ptr<TdCallback> callback) {
-    LOG(INFO) << "Initialize client " << td_id;
-    auto guard = concurrent_scheduler_->get_send_guard();
-    send_closure(multi_td_, &MultiTd::create, td_id, std::move(callback));
-  }
-
-  static bool is_valid_client_id(int32 client_id) {
-    return client_id > 0 && static_cast<uint32>(client_id) < current_id_.load();
-  }
-
-  void send(ClientManager::ClientId client_id, ClientManager::RequestId request_id,
-            td_api::object_ptr<td_api::Function> &&request) {
-    auto guard = concurrent_scheduler_->get_send_guard();
-    send_closure(multi_td_, &MultiTd::send, client_id, request_id, std::move(request));
-  }
-
-  void close(ClientManager::ClientId client_id) {
-    LOG(INFO) << "Close client";
-    auto guard = concurrent_scheduler_->get_send_guard();
-    send_closure(multi_td_, &MultiTd::close, client_id);
-  }
-
-  ~MultiImpl() {
-    {
-      auto guard = concurrent_scheduler_->get_send_guard();
-      multi_td_.reset();
-      Scheduler::instance()->finish();
-    }
-    if (!ExitGuard::is_exited()) {
-      scheduler_thread_.join();
-    } else {
-      scheduler_thread_.detach();
-    }
-    concurrent_scheduler_->finish();
-  }
-
- private:
-  std::shared_ptr<ConcurrentScheduler> concurrent_scheduler_;
-  thread scheduler_thread_;
-  ActorOwn<MultiTd> multi_td_;
-
-  static std::atomic<uint32> current_id_;
-};
-
-std::atomic<uint32> MultiImpl::current_id_{1};
-
-class MultiImplPool {
- public:
-  std::shared_ptr<MultiImpl> get() {
-    std::unique_lock<std::mutex> lock(mutex_);
-    if (impls_.empty()) {
-      init_openssl_threads();
-
-      auto max_client_threads = clamp(thread::hardware_concurrency(), 8u, 20u) * 5 / 4;
-#if TD_OPENBSD
-      max_client_threads = td::min(max_client_threads, 4u);
-#endif
-      impls_.resize(max_client_threads);
-      CHECK(impls_.size() * (1 + MultiImpl::ADDITIONAL_THREAD_COUNT + 1 /* IOCP */) < 128);
-
-      net_query_stats_ = std::make_shared<NetQueryStats>();
-    }
-    auto &impl = *std::min_element(impls_.begin(), impls_.end(),
-                                   [](auto &a, auto &b) { return a.lock().use_count() < b.lock().use_count(); });
-    auto result = impl.lock();
-    if (!result) {
-      result = std::make_shared<MultiImpl>(net_query_stats_);
-      impl = result;
-    }
-    return result;
-  }
-
-  void try_clear() {
-    std::unique_lock<std::mutex> lock(mutex_);
-    if (impls_.empty()) {
-      return;
-    }
-
-    for (auto &impl : impls_) {
-      if (impl.lock().use_count() != 0) {
-        return;
-      }
-    }
-    reset_to_empty(impls_);
-
-    CHECK(net_query_stats_.use_count() == 1);
-    CHECK(net_query_stats_->get_count() == 0);
-    net_query_stats_ = nullptr;
-  }
-
- private:
-  std::mutex mutex_;
-  std::vector<std::weak_ptr<MultiImpl>> impls_;
-  std::shared_ptr<NetQueryStats> net_query_stats_;
-};
-
-class ClientManager::Impl final {
- public:
-  ClientId create_client_id() {
-    auto client_id = MultiImpl::create_id();
-    LOG(INFO) << "Created managed client " << client_id;
-    {
-      auto lock = impls_mutex_.lock_write();
-      impls_[client_id];  // create empty MultiImplInfo
-    }
-    return client_id;
-  }
-
-  void send(ClientId client_id, RequestId request_id, td_api::object_ptr<td_api::Function> &&request) {
-    auto lock = impls_mutex_.lock_read();
-    if (!MultiImpl::is_valid_client_id(client_id)) {
-      receiver_.add_response(client_id, request_id,
-                             td_api::make_object<td_api::error>(400, "Invalid TDLib instance specified"));
-      return;
-    }
-
-    auto it = impls_.find(client_id);
-    if (it != impls_.end() && it->second.impl == nullptr) {
-      lock.reset();
-
-      auto write_lock = impls_mutex_.lock_write();
-      it = impls_.find(client_id);
-      if (it != impls_.end() && it->second.impl == nullptr) {
-        it->second.impl = pool_.get();
-        it->second.impl->create(client_id, receiver_.create_callback(client_id));
-      }
-      write_lock.reset();
-
-      lock = impls_mutex_.lock_read();
-      it = impls_.find(client_id);
-    }
-    if (it == impls_.end() || it->second.is_closed) {
-      receiver_.add_response(client_id, request_id, td_api::make_object<td_api::error>(500, "Request aborted"));
-      return;
-    }
-    it->second.impl->send(client_id, request_id, std::move(request));
-  }
-
-  Response receive(double timeout) {
-    auto response = receiver_.receive(timeout, true);
-    if (response.request_id == 0 && response.object != nullptr &&
-        response.object->get_id() == td_api::updateAuthorizationState::ID &&
-        static_cast<const td_api::updateAuthorizationState *>(response.object.get())->authorization_state_->get_id() ==
-            td_api::authorizationStateClosed::ID) {
-      LOG(INFO) << "Release closed client";
-      auto lock = impls_mutex_.lock_write();
-      close_impl(response.client_id);
-
-      response.client_id = 0;
-      response.object = nullptr;
-    }
-    if (response.object == nullptr && response.client_id != 0 && response.request_id == 0) {
-      auto lock = impls_mutex_.lock_write();
-      auto it = impls_.find(response.client_id);
-      CHECK(it != impls_.end());
-      CHECK(it->second.is_closed);
-      impls_.erase(it);
-
-      response.object = td_api::make_object<td_api::updateAuthorizationState>(
-          td_api::make_object<td_api::authorizationStateClosed>());
-
-      if (impls_.empty()) {
-        reset_to_empty(impls_);
-        pool_.try_clear();
-      }
-    }
-    return response;
-  }
-
-  void close_impl(ClientId client_id) {
-    auto it = impls_.find(client_id);
-    CHECK(it != impls_.end());
-    if (!it->second.is_closed) {
-      it->second.is_closed = true;
-      if (it->second.impl == nullptr) {
-        receiver_.add_response(client_id, 0, nullptr);
-      } else {
-        it->second.impl->close(client_id);
-      }
-    }
-  }
-
-  Impl() = default;
-  Impl(const Impl &) = delete;
-  Impl &operator=(const Impl &) = delete;
-  Impl(Impl &&) = delete;
-  Impl &operator=(Impl &&) = delete;
-  ~Impl() {
-    if (ExitGuard::is_exited()) {
-      return;
-    }
-    LOG(INFO) << "Destroy ClientManager";
-    for (auto &it : impls_) {
-      close_impl(it.first);
-    }
-    while (!impls_.empty() && !ExitGuard::is_exited()) {
-      receive(0.1);
-    }
-  }
-
- private:
-  MultiImplPool pool_;
-  RwMutex impls_mutex_;
-  struct MultiImplInfo {
-    std::shared_ptr<MultiImpl> impl;
-    bool is_closed = false;
-  };
-  FlatHashMap<ClientId, MultiImplInfo> impls_;
-  TdReceiver receiver_;
-};
-
-class Client::Impl final {
- public:
-  Impl() {
-    static MultiImplPool pool;
-    multi_impl_ = pool.get();
-    td_id_ = MultiImpl::create_id();
-    LOG(INFO) << "Create client " << td_id_;
-    multi_impl_->create(td_id_, receiver_.create_callback(td_id_));
-  }
-
-  void send(Request request) {
-    if (request.id == 0 || request.function == nullptr) {
-      LOG(ERROR) << "Drop wrong request " << request.id;
-      return;
-    }
-
-    multi_impl_->send(td_id_, request.id, std::move(request.function));
-  }
-
-  Response receive(double timeout) {
-    auto response = receiver_.receive(timeout, false);
-
-    Response old_response;
-    old_response.id = response.request_id;
-    old_response.object = std::move(response.object);
-    return old_response;
-  }
-
-  Impl(const Impl &) = delete;
-  Impl &operator=(const Impl &) = delete;
-  Impl(Impl &&) = delete;
-  Impl &operator=(Impl &&) = delete;
-  ~Impl() {
-    LOG(INFO) << "Destroy Client";
-    multi_impl_->close(td_id_);
-    while (!ExitGuard::is_exited()) {
-      auto response = receiver_.receive(0.1, false);
-      if (response.object == nullptr && response.client_id != 0 && response.request_id == 0) {
-        break;
-      }
-    }
-  }
-
- private:
-  std::shared_ptr<MultiImpl> multi_impl_;
-  TdReceiver receiver_;
-
-  int32 td_id_;
-};
-#endif
-
-Client::Client() : impl_(std::make_unique<Impl>()) {
-}
-
-void Client::send(Request &&request) {
-  impl_->send(std::move(request));
-}
-
-Client::Response Client::receive(double timeout) {
-  return impl_->receive(timeout);
-}
-
-Client::Response Client::execute(Request &&request) {
-  Response response;
-  response.id = request.id;
-  response.object = Td::static_request(std::move(request.function));
-  return response;
-}
-
-Client::Client(Client &&) noexcept = default;
-Client &Client::operator=(Client &&) noexcept = default;
-Client::~Client() = default;
-
-ClientManager::ClientManager() : impl_(std::make_unique<Impl>()) {
-}
-
-ClientManager::ClientId ClientManager::create_client_id() {
-  return impl_->create_client_id();
-}
-
-void ClientManager::send(ClientId client_id, RequestId request_id, td_api::object_ptr<td_api::Function> &&request) {
-  impl_->send(client_id, request_id, std::move(request));
-}
-
-ClientManager::Response ClientManager::receive(double timeout) {
-  return impl_->receive(timeout);
-}
-
-td_api::object_ptr<td_api::Object> ClientManager::execute(td_api::object_ptr<td_api::Function> &&request) {
-  return Td::static_request(std::move(request));
-}
-
-static std::atomic<ClientManager::LogMessageCallbackPtr> log_message_callback;
-
-static void log_message_callback_wrapper(int verbosity_level, CSlice message) {
-  auto callback = log_message_callback.load(std::memory_order_relaxed);
-  if (callback != nullptr) {
-    if (check_utf8(message)) {
-      callback(verbosity_level, message.c_str());
-    } else {
-      size_t pos = 0;
-      while (1 <= message[pos] && message[pos] <= 126) {
-        pos++;
-      }
-      CHECK(pos + 1 < message.size());
-      auto utf8_message = PSTRING() << message.substr(0, pos)
-                                    << url_encode(message.substr(pos, message.size() - pos - 1)) << '\n';
-      callback(verbosity_level, utf8_message.c_str());
-    }
-  }
-}
-
-void ClientManager::set_log_message_callback(int max_verbosity_level, LogMessageCallbackPtr callback) {
-  if (callback == nullptr) {
-    ::td::set_log_message_callback(max_verbosity_level, nullptr);
-    log_message_callback = nullptr;
-  } else {
-    log_message_callback = callback;
-    ::td::set_log_message_callback(max_verbosity_level, log_message_callback_wrapper);
-  }
-}
-
-ClientManager::ClientManager(ClientManager &&) noexcept = default;
-ClientManager &ClientManager::operator=(ClientManager &&) noexcept = default;
-ClientManager::~ClientManager() = default;
-
-ClientManager *ClientManager::get_manager_singleton() {
-  static ClientManager client_manager;
-  static ExitGuard exit_guard;
-  return &client_manager;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Client.h b/third-party/td/td/td/telegram/Client.h
deleted file mode 100644
index 6b78b80a41..0000000000
--- a/third-party/td/td/td/telegram/Client.h
+++ /dev/null
@@ -1,289 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-///\file
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/td_api.hpp"
-
-#include <cstdint>
-#include <memory>
-
-namespace td {
-
-/**
- * The native C++ interface for interaction with TDLib.
- *
- * A TDLib client instance can be created through the method ClientManager::create_client_id.
- * Requests can be sent using the method ClientManager::send from any thread.
- * New updates and responses to requests can be received using the method ClientManager::receive from any thread after
- * the first request has been sent to the client instance. ClientManager::receive must not be called simultaneously from
- * two different threads. Also, note that all updates and responses to requests should be applied in the same order as
- * they were received, to ensure consistency.
- * Some TDLib requests can be executed synchronously from any thread using the method ClientManager::execute.
- *
- * General pattern of usage:
- * \code
- * td::ClientManager manager;
- * auto client_id = manager.create_client_id();
- * // somehow share the manager and the client_id with other threads,
- * // which will be able to send requests via manager.send(client_id, ...)
- *
- * // send some dummy requests to the new instance to activate it
- * manager.send(client_id, ...);
- *
- * const double WAIT_TIMEOUT = 10.0;  // seconds
- * while (true) {
- *   auto response = manager.receive(WAIT_TIMEOUT);
- *   if (response.object == nullptr) {
- *     continue;
- *   }
- *
- *   if (response.request_id == 0) {
- *     // process response.object as an incoming update of the type td_api::Update for the client response.client_id
- *   } else {
- *     // process response.object as an answer to a request response.request_id for the client response.client_id
- *   }
- * }
- * \endcode
- */
-class ClientManager final {
- public:
-  /**
-   * Creates a new TDLib client manager.
-   */
-  ClientManager();
-
-  /**
-   * Opaque TDLib client instance identifier.
-   */
-  using ClientId = std::int32_t;
-
-  /**
-   * Request identifier.
-   * Responses to TDLib requests will have the same request id as the corresponding request.
-   * Updates from TDLib will have the request_id == 0, incoming requests are thus not allowed to have request_id == 0.
-   */
-  using RequestId = std::uint64_t;
-
-  /**
-   * Returns an opaque identifier of a new TDLib instance.
-   * The TDLib instance will not send updates until the first request is sent to it.
-   * \return Opaque identifier of a new TDLib instance.
-   */
-  ClientId create_client_id();
-
-  /**
-   * Sends request to TDLib. May be called from any thread.
-   * \param[in] client_id TDLib client instance identifier.
-   * \param[in] request_id Request identifier. Must be non-zero.
-   * \param[in] request Request to TDLib.
-   */
-  void send(ClientId client_id, RequestId request_id, td_api::object_ptr<td_api::Function> &&request);
-
-  /**
-   * A response to a request, or an incoming update from TDLib.
-   */
-  struct Response {
-    /**
-     * TDLib client instance identifier, for which the response was received.
-     */
-    ClientId client_id;
-
-    /**
-     * Request identifier to which the response corresponds, or 0 for incoming updates from TDLib.
-     */
-    RequestId request_id;
-
-    /**
-     * TDLib API object representing a response to a TDLib request or an incoming update.
-     */
-    td_api::object_ptr<td_api::Object> object;
-  };
-
-  /**
-   * Receives incoming updates and responses to requests from TDLib. May be called from any thread, but must not be
-   * called simultaneously from two different threads.
-   * \param[in] timeout The maximum number of seconds allowed for this function to wait for new data.
-   * \return An incoming update or response to a request. The object returned in the response may be a nullptr
-   *         if the timeout expires.
-   */
-  Response receive(double timeout);
-
-  /**
-   * Synchronously executes a TDLib request.
-   * A request can be executed synchronously, only if it is documented with "Can be called synchronously".
-   * \param[in] request Request to the TDLib.
-   * \return The request response.
-   */
-  static td_api::object_ptr<td_api::Object> execute(td_api::object_ptr<td_api::Function> &&request);
-
-  /**
-   * A type of callback function that will be called when a message is added to the internal TDLib log.
-   *
-   * \param verbosity_level Log verbosity level with which the message was added from -1 up to 1024.
-   *                        If 0, then TDLib will crash as soon as the callback returns.
-   *                        None of the TDLib methods can be called from the callback.
-   * \param message Null-terminated UTF-8-encoded string with the message added to the log.
-   */
-  using LogMessageCallbackPtr = void (*)(int verbosity_level, const char *message);
-
-  /**
-   * Sets the callback that will be called when a message is added to the internal TDLib log.
-   * None of the TDLib methods can be called from the callback.
-   * By default the callback is not set.
-   *
-   * \param[in] max_verbosity_level The maximum verbosity level of messages for which the callback will be called.
-   * \param[in] callback Callback that will be called when a message is added to the internal TDLib log.
-   *                     Pass nullptr to remove the callback.
-   */
-  static void set_log_message_callback(int max_verbosity_level, LogMessageCallbackPtr callback);
-
-  /**
-   * Destroys the client manager and all TDLib client instances managed by it.
-   */
-  ~ClientManager();
-
-  /**
-   * Move constructor.
-   */
-  ClientManager(ClientManager &&other) noexcept;
-
-  /**
-   * Move assignment operator.
-   */
-  ClientManager &operator=(ClientManager &&other) noexcept;
-
-  /**
-   * Returns a pointer to a singleton ClientManager instance.
-   * \return A unique singleton ClientManager instance.
-   */
-  static ClientManager *get_manager_singleton();
-
- private:
-  friend class Client;
-  class Impl;
-  std::unique_ptr<Impl> impl_;
-};
-
-/**
- * Old native C++ interface for interaction with TDLib to be removed in TDLib 2.0.0.
- *
- * The TDLib instance is created for the lifetime of the Client object.
- * Requests to TDLib can be sent using the Client::send method from any thread.
- * New updates and responses to requests can be received using the Client::receive method from any thread,
- * this function must not be called simultaneously from two different threads. Also, note that all updates and
- * responses to requests should be applied in the same order as they were received, to ensure consistency.
- * Given this information, it's advisable to call this function from a dedicated thread.
- * Some service TDLib requests can be executed synchronously from any thread using the Client::execute method.
- *
- * General pattern of usage:
- * \code
- * std::shared_ptr<td::Client> client = std::make_shared<td::Client>();
- * // somehow share the client with other threads, which will be able to send requests via client->send
- *
- * const double WAIT_TIMEOUT = 10.0;  // seconds
- * bool is_closed = false;            // should be set to true, when updateAuthorizationState with
- *                                    // authorizationStateClosed is received
- * while (!is_closed) {
- *   auto response = client->receive(WAIT_TIMEOUT);
- *   if (response.object == nullptr) {
- *     continue;
- *   }
- *
- *   if (response.id == 0) {
- *     // process response.object as an incoming update of type td_api::Update
- *   } else {
- *     // process response.object as an answer to a sent request with identifier response.id
- *   }
- * }
- * \endcode
- */
-class Client final {
- public:
-  /**
-   * Creates a new TDLib client.
-   */
-  Client();
-
-  /**
-   * A request to the TDLib.
-   */
-  struct Request {
-    /**
-     * Request identifier.
-     * Responses to TDLib requests will have the same id as the corresponding request.
-     * Updates from TDLib will have id == 0, incoming requests are thus disallowed to have id == 0.
-     */
-    std::uint64_t id;
-
-    /**
-     * TDLib API function representing a request to TDLib.
-     */
-    td_api::object_ptr<td_api::Function> function;
-  };
-
-  /**
-   * Sends request to TDLib. May be called from any thread.
-   * \param[in] request Request to TDLib.
-   */
-  void send(Request &&request);
-
-  /**
-   * A response to a request, or an incoming update from TDLib.
-   */
-  struct Response {
-    /**
-     * TDLib request identifier, which corresponds to the response, or 0 for incoming updates from TDLib.
-     */
-    std::uint64_t id;
-
-    /**
-     * TDLib API object representing a response to a TDLib request or an incoming update.
-     */
-    td_api::object_ptr<td_api::Object> object;
-  };
-
-  /**
-   * Receives incoming updates and request responses from TDLib. May be called from any thread, but shouldn't be
-   * called simultaneously from two different threads.
-   * \param[in] timeout The maximum number of seconds allowed for this function to wait for new data.
-   * \return An incoming update or request response. The object returned in the response may be a nullptr
-   *         if the timeout expires.
-   */
-  Response receive(double timeout);
-
-  /**
-   * Synchronously executes TDLib requests. Only a few requests can be executed synchronously.
-   * May be called from any thread.
-   * \param[in] request Request to the TDLib.
-   * \return The request response.
-   */
-  static Response execute(Request &&request);
-
-  /**
-   * Destroys the client and TDLib instance.
-   */
-  ~Client();
-
-  /**
-   * Move constructor.
-   */
-  Client(Client &&other) noexcept;
-
-  /**
-   * Move assignment operator.
-   */
-  Client &operator=(Client &&other) noexcept;
-
- private:
-  class Impl;
-  std::unique_ptr<Impl> impl_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ClientActor.cpp b/third-party/td/td/td/telegram/ClientActor.cpp
deleted file mode 100644
index 415af1d29f..0000000000
--- a/third-party/td/td/td/telegram/ClientActor.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ClientActor.h"
-
-#include "td/telegram/net/NetQueryStats.h"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-ClientActor::ClientActor(unique_ptr<TdCallback> callback, Options options)
-    : callback_(std::move(callback)), options_(std::move(options)) {
-}
-
-void ClientActor::start_up() {
-  Td::Options td_options;
-  td_options.net_query_stats = std::move(options_.net_query_stats);
-  td_ = create_actor<Td>("Td", std::move(callback_), std::move(td_options));
-}
-
-void ClientActor::request(uint64 id, td_api::object_ptr<td_api::Function> request) {
-  send_closure_later(td_, &Td::request, id, std::move(request));
-}
-
-ClientActor::~ClientActor() = default;
-
-ClientActor::ClientActor(ClientActor &&) noexcept = default;
-
-ClientActor &ClientActor::operator=(ClientActor &&) noexcept = default;
-
-td_api::object_ptr<td_api::Object> ClientActor::execute(td_api::object_ptr<td_api::Function> request) {
-  return Td::static_request(std::move(request));
-}
-
-std::shared_ptr<NetQueryStats> create_net_query_stats() {
-  return std::make_shared<NetQueryStats>();
-}
-
-void dump_pending_network_queries(NetQueryStats &stats) {
-  stats.dump_pending_network_queries();
-}
-
-uint64 get_pending_network_query_count(NetQueryStats &stats) {
-  return stats.get_count();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ClientActor.h b/third-party/td/td/td/telegram/ClientActor.h
deleted file mode 100644
index e1613d2c71..0000000000
--- a/third-party/td/td/td/telegram/ClientActor.h
+++ /dev/null
@@ -1,108 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-///\file
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/td_api.hpp"
-#include "td/telegram/TdCallback.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-
-#include <memory>
-
-namespace td {
-
-class NetQueryStats;
-class Td;
-
-/**
- * This is a low-level Actor interface for interaction with TDLib. The interface is a lot more flexible than
- * the ClientManager interface, however, for most usages the ClientManager interface should be sufficient.
- */
-class ClientActor final : public Actor {
- public:
-  /// Options for ClientActor creation.
-  struct Options {
-    /// NetQueryStats object for this client.
-    std::shared_ptr<NetQueryStats> net_query_stats;
-
-    /// Default constructor.
-    Options() {
-    }
-  };
-
-  /**
-   * Creates a ClientActor using the specified callback.
-   * \param[in] callback Callback for outgoing notifications from TDLib.
-   * \param[in] options Options to create the TDLib.
-   */
-  explicit ClientActor(unique_ptr<TdCallback> callback, Options options = {});
-
-  /**
-   * Sends one request to TDLib. The answer will be received via callback.
-   * \param[in] id Request identifier, must be positive.
-   * \param[in] request The request.
-   */
-  void request(uint64 id, td_api::object_ptr<td_api::Function> request);
-
-  /**
-   * Synchronously executes a TDLib request. Only a few requests can be executed synchronously.
-   * May be called from any thread.
-   * \param[in] request Request to the TDLib instance.
-   * \return The request response.
-   */
-  static td_api::object_ptr<td_api::Object> execute(td_api::object_ptr<td_api::Function> request);
-
-  /**
-   * Destroys the ClientActor and the TDLib instance.
-   */
-  ~ClientActor() final;
-
-  /**
-   * Move constructor.
-   */
-  ClientActor(ClientActor &&other) noexcept;
-
-  /**
-   * Move assignment operator.
-   */
-  ClientActor &operator=(ClientActor &&other) noexcept;
-
-  ClientActor(const ClientActor &) = delete;
-
-  ClientActor &operator=(const ClientActor &) = delete;
-
- private:
-  void start_up() final;
-
-  ActorOwn<Td> td_;
-  unique_ptr<TdCallback> callback_;
-  Options options_;
-};
-
-/**
- * Creates NetQueryStats object, which can be shared between different clients.
- */
-std::shared_ptr<NetQueryStats> create_net_query_stats();
-
-/**
- * Dumps information about all pending network queries to the internal TDLib log.
- * This is useful for library debugging.
- */
-void dump_pending_network_queries(NetQueryStats &stats);
-
-/**
- * Returns the current number of pending network queries. Useful for library debugging.
- * \return Number of currently pending network queries.
- */
-uint64 get_pending_network_query_count(NetQueryStats &stats);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ClientDotNet.cpp b/third-party/td/td/td/telegram/ClientDotNet.cpp
deleted file mode 100644
index 7de27d8937..0000000000
--- a/third-party/td/td/td/telegram/ClientDotNet.cpp
+++ /dev/null
@@ -1,175 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma managed(push, off)
-#include "td/telegram/Client.h"
-#pragma managed(pop)
-
-#include "td/telegram/TdDotNetApi.h"
-
-#include "td/utils/port/CxCli.h"
-
-#pragma managed(push, off)
-#include <cstdint>
-#pragma managed(pop)
-
-namespace Telegram {
-namespace Td {
-
-using namespace CxCli;
-
-#if !TD_CLI
-/// <summary>
-/// A type of callback function that will be called when a message is added to the internal TDLib log.
-/// </summary>
-/// <param name="verbosityLevel">Log verbosity level with which the message was added from -1 up to 1024.
-/// If 0, then TDLib will crash as soon as the callback returns.
-/// None of the TDLib methods can be called from the callback.</param>
-/// <param name="message">The message added to the log.</param>
-public delegate void LogMessageCallback(int verbosityLevel, String^ message);
-#endif
-
-/// <summary>
-/// Interface for handler for results of queries to TDLib and incoming updates from TDLib.
-/// </summary>
-public interface class ClientResultHandler {
-  /// <summary>
-  /// Callback called on result of query to TDLib or incoming update from TDLib.
-  /// </summary>
-  /// <param name="object">Result of query or update of type Telegram.Td.Api.Update about new events.</param>
-  void OnResult(Api::BaseObject^ object);
-};
-
-/// <summary>
-/// Main class for interaction with the TDLib.
-/// </summary>
-public ref class Client sealed {
-public:
-  /// <summary>
-  /// Sends a request to the TDLib.
-  /// </summary>
-  /// <param name="function">Object representing a query to the TDLib.</param>
-  /// <param name="handler">Result handler with OnResult method which will be called with result
-  /// of the query or with Telegram.Td.Api.Error as parameter. If it is null, nothing will be called.</param>
-  /// <exception cref="NullReferenceException">Thrown when query is null.</exception>
-  void Send(Api::Function^ function, ClientResultHandler^ handler) {
-    std::uint64_t requestId = Increment(currentRequestId);
-    if (handler != nullptr) {
-      handlers[requestId] = handler;
-    }
-    auto request = td::td_api::move_object_as<td::td_api::Function>(ToUnmanaged(function)->get_object_ptr());
-    td::ClientManager::get_manager_singleton()->send(clientId, requestId, std::move(request));
-  }
-
-  /// <summary>
-  /// Synchronously executes a TDLib request. Only a few marked accordingly requests can be executed synchronously.
-  /// </summary>
-  /// <param name="function">Object representing a query to the TDLib.</param>
-  /// <returns>Returns request result.</returns>
-  /// <exception cref="NullReferenceException">Thrown when query is null.</exception>
-  static Api::BaseObject^ Execute(Api::Function^ function) {
-    auto request = td::td_api::move_object_as<td::td_api::Function>(ToUnmanaged(function)->get_object_ptr());
-    return Api::FromUnmanaged(*td::ClientManager::execute(std::move(request)));
-  }
-
-  /// <summary>
-  /// Launches a cycle which will fetch all results of queries to TDLib and incoming updates from TDLib.
-  /// Must be called once on a separate dedicated thread on which all updates and query results from all Clients will be handled.
-  /// Never returns.
-  /// </summary>
-  static void Run() {
-    while (true) {
-      auto response = td::ClientManager::get_manager_singleton()->receive(300.0);
-      if (response.object != nullptr) {
-        bool isClosed = response.object->get_id() == td::td_api::updateAuthorizationState::ID &&
-            static_cast<td::td_api::updateAuthorizationState &>(*response.object).authorization_state_->get_id() ==
-            td::td_api::authorizationStateClosed::ID && response.request_id == 0;
-
-        ClientResultHandler^ handler;
-        if (response.request_id == 0 ? updateHandlers.TryGetValue(response.client_id, handler) :
-            handlers.TryRemove(response.request_id, handler)) {
-          // TODO try/catch
-          handler->OnResult(Api::FromUnmanaged(*response.object));
-        }
-
-        if (isClosed) {
-          updateHandlers.TryRemove(response.client_id, handler);
-        }
-      }
-    }
-  }
-
-  /// <summary>
-  /// Creates new Client.
-  /// </summary>
-  /// <param name="updateHandler">Handler for incoming updates.</param>
-  /// <returns>Returns created Client.</returns>
-  static Client^ Create(ClientResultHandler^ updateHandler) {
-    return REF_NEW Client(updateHandler);
-  }
-
-#if !TD_CLI
-  /// <summary>
-  /// Sets the callback that will be called when a message is added to the internal TDLib log.
-  /// None of the TDLib methods can be called from the callback.
-  /// </summary>
-  /// <param name="max_verbosity_level">The maximum verbosity level of messages for which the callback will be called.</param>
-  /// <param name="callback">Callback that will be called when a message is added to the internal TDLib log.
-  /// Pass null to remove the callback.</param>
-  static void SetLogMessageCallback(std::int32_t max_verbosity_level, LogMessageCallback^ callback) {
-    std::lock_guard<std::mutex> lock(logMutex);
-    if (callback == nullptr) {
-      td::ClientManager::set_log_message_callback(max_verbosity_level, nullptr);
-      logMessageCallback = nullptr;
-    } else {
-      logMessageCallback = callback;
-      td::ClientManager::set_log_message_callback(max_verbosity_level, LogMessageCallbackWrapper);
-    }
-  }
-#endif
-
-private:
-  Client(ClientResultHandler^ updateHandler) {
-    clientId = td::ClientManager::get_manager_singleton()->create_client_id();
-    if (updateHandler != nullptr) {
-      updateHandlers[clientId] = updateHandler;
-    }
-    Send(REF_NEW Api::GetOption("version"), nullptr);
-  }
-
-#if !TD_CLI
-  static std::int64_t currentRequestId;
-#else
-  static std::int64_t currentRequestId = 0;
-#endif
-  static ConcurrentDictionary<std::uint64_t, ClientResultHandler^> handlers;
-  static ConcurrentDictionary<std::int32_t, ClientResultHandler^> updateHandlers;
-  std::int32_t clientId;
-
-#if !TD_CLI
-  static std::mutex logMutex;
-  static LogMessageCallback^ logMessageCallback;
-
-  static void LogMessageCallbackWrapper(int verbosity_level, const char *message) {
-    auto callback = logMessageCallback;
-    if (callback != nullptr) {
-      callback(verbosity_level, string_from_unmanaged(message));
-    }
-  }
-#endif
-};
-
-#if !TD_CLI
-std::int64_t Client::currentRequestId = 0;
-ConcurrentDictionary<std::uint64_t, ClientResultHandler^> Client::handlers;
-ConcurrentDictionary<std::int32_t, ClientResultHandler^> Client::updateHandlers;
-
-std::mutex Client::logMutex;
-LogMessageCallback^ Client::logMessageCallback;
-#endif
-
-}  // namespace Td
-}  // namespace Telegram
diff --git a/third-party/td/td/td/telegram/ClientJson.cpp b/third-party/td/td/td/telegram/ClientJson.cpp
deleted file mode 100644
index 990454d38c..0000000000
--- a/third-party/td/td/td/telegram/ClientJson.cpp
+++ /dev/null
@@ -1,162 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ClientJson.h"
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/td_api_json.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-static td_api::object_ptr<td_api::Function> get_return_error_function(Slice error_message) {
-  auto error = td_api::make_object<td_api::error>(400, error_message.str());
-  return td_api::make_object<td_api::testReturnError>(std::move(error));
-}
-
-static std::pair<td_api::object_ptr<td_api::Function>, string> to_request(Slice request) {
-  auto request_str = request.str();
-  auto r_json_value = json_decode(request_str);
-  if (r_json_value.is_error()) {
-    return {get_return_error_function(PSLICE()
-                                      << "Failed to parse request as JSON object: " << r_json_value.error().message()),
-            string()};
-  }
-  auto json_value = r_json_value.move_as_ok();
-  if (json_value.type() != JsonValue::Type::Object) {
-    return {get_return_error_function("Expected a JSON object"), string()};
-  }
-
-  string extra;
-  if (json_value.get_object().has_field("@extra")) {
-    extra = json_encode<string>(json_value.get_object().extract_field("@extra"));
-  }
-
-  td_api::object_ptr<td_api::Function> func;
-  auto status = from_json(func, std::move(json_value));
-  if (status.is_error()) {
-    return {get_return_error_function(PSLICE() << "Failed to parse JSON object as TDLib request: " << status.message()),
-            std::move(extra)};
-  }
-  return std::make_pair(std::move(func), std::move(extra));
-}
-
-static string from_response(const td_api::Object &object, const string &extra, int client_id) {
-  auto buf = StackAllocator::alloc(1 << 18);
-  JsonBuilder jb(StringBuilder(buf.as_slice(), true), -1);
-  jb.enter_value() << ToJson(object);
-  auto &sb = jb.string_builder();
-  auto slice = sb.as_cslice();
-  CHECK(!slice.empty() && slice.back() == '}');
-  sb.pop_back();
-  if (!extra.empty()) {
-    sb << ",\"@extra\":" << extra;
-  }
-  if (client_id != 0) {
-    sb << ",\"@client_id\":" << client_id;
-  }
-  sb << '}';
-  return sb.as_cslice().str();
-}
-
-static TD_THREAD_LOCAL string *current_output;
-
-static const char *store_string(string str) {
-  init_thread_local<string>(current_output);
-  *current_output = std::move(str);
-  return current_output->c_str();
-}
-
-void ClientJson::send(Slice request) {
-  auto parsed_request = to_request(request);
-  std::uint64_t extra_id = extra_id_.fetch_add(1, std::memory_order_relaxed);
-  if (!parsed_request.second.empty()) {
-    std::lock_guard<std::mutex> guard(mutex_);
-    extra_[extra_id] = std::move(parsed_request.second);
-  }
-  client_.send(Client::Request{extra_id, std::move(parsed_request.first)});
-}
-
-const char *ClientJson::receive(double timeout) {
-  auto response = client_.receive(timeout);
-  if (response.object == nullptr) {
-    return nullptr;
-  }
-
-  string extra;
-  if (response.id != 0) {
-    std::lock_guard<std::mutex> guard(mutex_);
-    auto it = extra_.find(response.id);
-    if (it != extra_.end()) {
-      extra = std::move(it->second);
-      extra_.erase(it);
-    }
-  }
-  return store_string(from_response(*response.object, extra, 0));
-}
-
-const char *ClientJson::execute(Slice request) {
-  auto parsed_request = to_request(request);
-  return store_string(from_response(*Client::execute(Client::Request{0, std::move(parsed_request.first)}).object,
-                                    parsed_request.second, 0));
-}
-
-static ClientManager *get_manager() {
-  return ClientManager::get_manager_singleton();
-}
-
-static std::mutex extra_mutex;
-static FlatHashMap<int64, string> extra;
-static std::atomic<uint64> extra_id{1};
-
-int json_create_client_id() {
-  return static_cast<int>(get_manager()->create_client_id());
-}
-
-void json_send(int client_id, Slice request) {
-  auto parsed_request = to_request(request);
-  auto request_id = extra_id.fetch_add(1, std::memory_order_relaxed);
-  if (!parsed_request.second.empty()) {
-    std::lock_guard<std::mutex> guard(extra_mutex);
-    extra[request_id] = std::move(parsed_request.second);
-  }
-  get_manager()->send(client_id, request_id, std::move(parsed_request.first));
-}
-
-const char *json_receive(double timeout) {
-  auto response = get_manager()->receive(timeout);
-  if (!response.object) {
-    return nullptr;
-  }
-
-  string extra_str;
-  if (response.request_id != 0) {
-    std::lock_guard<std::mutex> guard(extra_mutex);
-    auto it = extra.find(response.request_id);
-    if (it != extra.end()) {
-      extra_str = std::move(it->second);
-      extra.erase(it);
-    }
-  }
-  return store_string(from_response(*response.object, extra_str, response.client_id));
-}
-
-const char *json_execute(Slice request) {
-  auto parsed_request = to_request(request);
-  return store_string(
-      from_response(*ClientManager::execute(std::move(parsed_request.first)), parsed_request.second, 0));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ClientJson.h b/third-party/td/td/td/telegram/ClientJson.h
deleted file mode 100644
index 5ba19e62e8..0000000000
--- a/third-party/td/td/td/telegram/ClientJson.h
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Client.h"
-
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Slice.h"
-
-#include <atomic>
-#include <cstdint>
-#include <mutex>
-#include <string>
-
-namespace td {
-
-// TODO can be removed in TDLib 2.0
-class ClientJson final {
- public:
-  void send(Slice request);
-
-  const char *receive(double timeout);
-
-  static const char *execute(Slice request);
-
- private:
-  Client client_;
-  std::mutex mutex_;  // for extra_
-  FlatHashMap<std::int64_t, std::string> extra_;
-  std::atomic<std::uint64_t> extra_id_{1};
-};
-
-int json_create_client_id();
-
-void json_send(int client_id, Slice request);
-
-const char *json_receive(double timeout);
-
-const char *json_execute(Slice request);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CommonDialogManager.cpp b/third-party/td/td/td/telegram/CommonDialogManager.cpp
deleted file mode 100644
index b83353b0b4..0000000000
--- a/third-party/td/td/td/telegram/CommonDialogManager.cpp
+++ /dev/null
@@ -1,225 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/CommonDialogManager.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <algorithm>
-
-namespace td {
-
-class GetCommonDialogsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-  int64 offset_chat_id_ = 0;
-
- public:
-  explicit GetCommonDialogsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, tl_object_ptr<telegram_api::InputUser> &&input_user, int64 offset_chat_id, int32 limit) {
-    user_id_ = user_id;
-    offset_chat_id_ = offset_chat_id;
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getCommonChats(std::move(input_user), offset_chat_id, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getCommonChats>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto chats_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetCommonDialogsQuery: " << to_string(chats_ptr);
-    switch (chats_ptr->get_id()) {
-      case telegram_api::messages_chats::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chats>(chats_ptr);
-        td_->common_dialog_manager_->on_get_common_dialogs(user_id_, offset_chat_id_, std::move(chats->chats_),
-                                                           narrow_cast<int32>(chats->chats_.size()));
-        break;
-      }
-      case telegram_api::messages_chatsSlice::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chatsSlice>(chats_ptr);
-        td_->common_dialog_manager_->on_get_common_dialogs(user_id_, offset_chat_id_, std::move(chats->chats_),
-                                                           chats->count_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-CommonDialogManager::CommonDialogManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-CommonDialogManager::~CommonDialogManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), found_common_dialogs_);
-}
-
-void CommonDialogManager::tear_down() {
-  parent_.reset();
-}
-
-void CommonDialogManager::drop_common_dialogs_cache(UserId user_id) {
-  auto it = found_common_dialogs_.find(user_id);
-  if (it != found_common_dialogs_.end()) {
-    it->second.is_outdated = true;
-  }
-}
-
-std::pair<int32, vector<DialogId>> CommonDialogManager::get_common_dialogs(UserId user_id, DialogId offset_dialog_id,
-                                                                           int32 limit, bool force,
-                                                                           Promise<Unit> &&promise) {
-  auto r_input_user = td_->user_manager_->get_input_user(user_id);
-  if (r_input_user.is_error()) {
-    promise.set_error(r_input_user.move_as_error());
-    return {};
-  }
-
-  if (user_id == td_->user_manager_->get_my_id()) {
-    promise.set_error(Status::Error(400, "Can't get common chats with self"));
-    return {};
-  }
-  if (limit <= 0) {
-    promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-    return {};
-  }
-  if (limit > MAX_GET_DIALOGS) {
-    limit = MAX_GET_DIALOGS;
-  }
-
-  int64 offset_chat_id = 0;
-  switch (offset_dialog_id.get_type()) {
-    case DialogType::Chat:
-      offset_chat_id = offset_dialog_id.get_chat_id().get();
-      break;
-    case DialogType::Channel:
-      offset_chat_id = offset_dialog_id.get_channel_id().get();
-      break;
-    case DialogType::None:
-      if (offset_dialog_id == DialogId()) {
-        break;
-      }
-    // fallthrough
-    case DialogType::User:
-    case DialogType::SecretChat:
-      promise.set_error(Status::Error(400, "Wrong offset_chat_id"));
-      return {};
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  auto it = found_common_dialogs_.find(user_id);
-  if (it != found_common_dialogs_.end() && !it->second.dialog_ids.empty()) {
-    int32 total_count = it->second.total_count;
-    vector<DialogId> &common_dialog_ids = it->second.dialog_ids;
-    bool use_cache = (!it->second.is_outdated && it->second.receive_time >= Time::now() - 3600) || force ||
-                     offset_chat_id != 0 || common_dialog_ids.size() >= static_cast<size_t>(MAX_GET_DIALOGS);
-    // use cache if it is up-to-date, or we required to use it or we can't update it
-    if (use_cache) {
-      auto offset_it = common_dialog_ids.begin();
-      if (offset_dialog_id != DialogId()) {
-        offset_it = std::find(common_dialog_ids.begin(), common_dialog_ids.end(), offset_dialog_id);
-        if (offset_it == common_dialog_ids.end()) {
-          promise.set_error(Status::Error(400, "Wrong offset_chat_id"));
-          return {};
-        }
-        ++offset_it;
-      }
-      vector<DialogId> result;
-      while (result.size() < static_cast<size_t>(limit)) {
-        if (offset_it == common_dialog_ids.end()) {
-          break;
-        }
-        auto dialog_id = *offset_it++;
-        if (dialog_id == DialogId()) {  // end of the list
-          promise.set_value(Unit());
-          return {total_count, std::move(result)};
-        }
-        result.push_back(dialog_id);
-      }
-      if (result.size() == static_cast<size_t>(limit) || force) {
-        promise.set_value(Unit());
-        return {total_count, std::move(result)};
-      }
-    }
-  }
-
-  td_->create_handler<GetCommonDialogsQuery>(std::move(promise))
-      ->send(user_id, r_input_user.move_as_ok(), offset_chat_id, MAX_GET_DIALOGS);
-  return {};
-}
-
-void CommonDialogManager::on_get_common_dialogs(UserId user_id, int64 offset_chat_id,
-                                                vector<tl_object_ptr<telegram_api::Chat>> &&chats, int32 total_count) {
-  CHECK(user_id.is_valid());
-  td_->user_manager_->on_update_user_common_chat_count(user_id, total_count);
-
-  auto &common_dialogs = found_common_dialogs_[user_id];
-  if (common_dialogs.is_outdated && offset_chat_id == 0 &&
-      common_dialogs.dialog_ids.size() < static_cast<size_t>(MAX_GET_DIALOGS)) {
-    // drop outdated cache if possible
-    common_dialogs = CommonDialogs();
-  }
-  if (common_dialogs.receive_time == 0) {
-    common_dialogs.receive_time = Time::now();
-  }
-  common_dialogs.is_outdated = false;
-  auto &result = common_dialogs.dialog_ids;
-  if (!result.empty() && result.back() == DialogId()) {
-    return;
-  }
-  bool is_last = chats.empty() && offset_chat_id == 0;
-  for (auto &chat : chats) {
-    auto dialog_id = ChatManager::get_dialog_id(chat);
-    if (!dialog_id.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << to_string(chat);
-      continue;
-    }
-    td_->chat_manager_->on_get_chat(std::move(chat), "on_get_common_dialogs");
-
-    if (!td::contains(result, dialog_id)) {
-      td_->dialog_manager_->force_create_dialog(dialog_id, "get common dialogs");
-      result.push_back(dialog_id);
-    }
-  }
-  if (result.size() >= static_cast<size_t>(total_count) || is_last) {
-    if (result.size() != static_cast<size_t>(total_count)) {
-      LOG(ERROR) << "Fix total count of common groups with " << user_id << " from " << total_count << " to "
-                 << result.size();
-      total_count = narrow_cast<int32>(result.size());
-      td_->user_manager_->on_update_user_common_chat_count(user_id, total_count);
-    }
-
-    result.emplace_back();
-  }
-  common_dialogs.total_count = total_count;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CommonDialogManager.h b/third-party/td/td/td/telegram/CommonDialogManager.h
deleted file mode 100644
index 8dcd56fa37..0000000000
--- a/third-party/td/td/td/telegram/CommonDialogManager.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class CommonDialogManager final : public Actor {
- public:
-  CommonDialogManager(Td *td, ActorShared<> parent);
-  CommonDialogManager(const CommonDialogManager &) = delete;
-  CommonDialogManager &operator=(const CommonDialogManager &) = delete;
-  CommonDialogManager(CommonDialogManager &&) = delete;
-  CommonDialogManager &operator=(CommonDialogManager &&) = delete;
-  ~CommonDialogManager() final;
-
-  void on_get_common_dialogs(UserId user_id, int64 offset_chat_id, vector<tl_object_ptr<telegram_api::Chat>> &&chats,
-                             int32 total_count);
-
-  void drop_common_dialogs_cache(UserId user_id);
-
-  std::pair<int32, vector<DialogId>> get_common_dialogs(UserId user_id, DialogId offset_dialog_id, int32 limit,
-                                                        bool force, Promise<Unit> &&promise);
-
- private:
-  void tear_down() final;
-
-  static constexpr int32 MAX_GET_DIALOGS = 100;  // server side limit
-
-  struct CommonDialogs {
-    vector<DialogId> dialog_ids;
-    double receive_time = 0;
-    int32 total_count = 0;
-    bool is_outdated = false;
-  };
-  FlatHashMap<UserId, CommonDialogs, UserIdHash> found_common_dialogs_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ConfigManager.cpp b/third-party/td/td/td/telegram/ConfigManager.cpp
deleted file mode 100644
index a91881e785..0000000000
--- a/third-party/td/td/td/telegram/ConfigManager.cpp
+++ /dev/null
@@ -1,2283 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ConfigManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ConnectionState.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/JsonValue.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/AuthDataShared.h"
-#include "td/telegram/net/ConnectionCreator.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/DcOptions.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/net/NetType.h"
-#include "td/telegram/net/PublicRsaKeySharedMain.h"
-#include "td/telegram/net/Session.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Premium.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/SuggestedActionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TranscriptionManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/RawConnection.h"
-#include "td/mtproto/RSA.h"
-#include "td/mtproto/TransportType.h"
-
-#if !TD_EMSCRIPTEN  //FIXME
-#include "td/net/SslCtx.h"
-#include "td/net/Wget.h"
-#endif
-
-#include "td/net/HttpQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/emoji.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/format.h"
-#include "td/utils/HttpDate.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/UInt.h"
-
-#include <algorithm>
-#include <functional>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-int VERBOSITY_NAME(config_recoverer) = VERBOSITY_NAME(INFO);
-
-Result<SimpleConfig> decode_config(Slice input) {
-  static auto rsa = mtproto::RSA::from_pem_public_key(
-                        "-----BEGIN RSA PUBLIC KEY-----\n"
-                        "MIIBCgKCAQEAyr+18Rex2ohtVy8sroGP\n"
-                        "BwXD3DOoKCSpjDqYoXgCqB7ioln4eDCFfOBUlfXUEvM/fnKCpF46VkAftlb4VuPD\n"
-                        "eQSS/ZxZYEGqHaywlroVnXHIjgqoxiAd192xRGreuXIaUKmkwlM9JID9WS2jUsTp\n"
-                        "zQ91L8MEPLJ/4zrBwZua8W5fECwCCh2c9G5IzzBm+otMS/YKwmR1olzRCyEkyAEj\n"
-                        "XWqBI9Ftv5eG8m0VkBzOG655WIYdyV0HfDK/NWcvGqa0w/nriMD6mDjKOryamw0O\n"
-                        "P9QuYgMN0C9xMW9y8SmP4h92OAWodTYgY1hZCxdv6cs5UnW9+PWvS+WIbkh+GaWY\n"
-                        "xwIDAQAB\n"
-                        "-----END RSA PUBLIC KEY-----\n")
-                        .move_as_ok();
-
-  if (input.size() < 344 || input.size() > 1024) {
-    return Status::Error(PSLICE() << "Invalid " << tag("length", input.size()));
-  }
-
-  auto data_base64 = base64_filter(input);
-  if (data_base64.size() != 344) {
-    return Status::Error(PSLICE() << "Invalid " << tag("length", data_base64.size()) << " after base64_filter");
-  }
-  TRY_RESULT(data_rsa, base64_decode(data_base64));
-  if (data_rsa.size() != 256) {
-    return Status::Error(PSLICE() << "Invalid " << tag("length", data_rsa.size()) << " after base64_decode");
-  }
-
-  MutableSlice data_rsa_slice(data_rsa);
-  rsa.decrypt_signature(data_rsa_slice, data_rsa_slice);
-
-  MutableSlice data_cbc = data_rsa_slice.substr(32);
-  UInt256 key;
-  UInt128 iv;
-  as_mutable_slice(key).copy_from(data_rsa_slice.substr(0, 32));
-  as_mutable_slice(iv).copy_from(data_rsa_slice.substr(16, 16));
-  aes_cbc_decrypt(as_slice(key), as_mutable_slice(iv), data_cbc, data_cbc);
-
-  CHECK(data_cbc.size() == 224);
-  string hash(32, ' ');
-  sha256(data_cbc.substr(0, 208), MutableSlice(hash));
-  if (data_cbc.substr(208) != Slice(hash).substr(0, 16)) {
-    return Status::Error("SHA256 mismatch");
-  }
-
-  TlParser len_parser{data_cbc};
-  int len = len_parser.fetch_int();
-  if (len < 8 || len > 208) {
-    return Status::Error(PSLICE() << "Invalid " << tag("data length", len) << " after aes_cbc_decrypt");
-  }
-  int constructor_id = len_parser.fetch_int();
-  if (constructor_id != telegram_api::help_configSimple::ID) {
-    return Status::Error(PSLICE() << "Wrong " << tag("constructor", format::as_hex(constructor_id)));
-  }
-  BufferSlice raw_config(data_cbc.substr(8, len - 8));
-  TlBufferParser parser{&raw_config};
-  auto config = telegram_api::help_configSimple::fetch(parser);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-  return std::move(config);
-}
-
-static ActorOwn<> get_simple_config_impl(Promise<SimpleConfigResult> promise, int32 scheduler_id, string url,
-                                         string host, std::vector<std::pair<string, string>> headers, bool prefer_ipv6,
-                                         std::function<Result<string>(HttpQuery &)> get_config,
-                                         string content = string(), string content_type = string()) {
-  VLOG(config_recoverer) << "Request simple config from " << url;
-#if TD_EMSCRIPTEN  // FIXME
-  return ActorOwn<>();
-#else
-  const int timeout = 10;
-  const int ttl = 3;
-  headers.emplace_back("Host", std::move(host));
-  headers.emplace_back("User-Agent",
-                       "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) "
-                       "Chrome/77.0.3865.90 Safari/537.36");
-  return ActorOwn<>(create_actor_on_scheduler<Wget>(
-      "Wget", scheduler_id,
-      PromiseCreator::lambda([get_config = std::move(get_config),
-                              promise = std::move(promise)](Result<unique_ptr<HttpQuery>> r_query) mutable {
-        promise.set_result([&]() -> Result<SimpleConfigResult> {
-          TRY_RESULT(http_query, std::move(r_query));
-          SimpleConfigResult res;
-          res.r_http_date = HttpDate::parse_http_date(http_query->get_header("date").str());
-          auto r_config = get_config(*http_query);
-          if (r_config.is_error()) {
-            res.r_config = r_config.move_as_error();
-          } else {
-            res.r_config = decode_config(r_config.ok());
-          }
-          return std::move(res);
-        }());
-      }),
-      std::move(url), std::move(headers), timeout, ttl, prefer_ipv6, SslCtx::VerifyPeer::Off, std::move(content),
-      std::move(content_type)));
-#endif
-}
-
-ActorOwn<> get_simple_config_azure(Promise<SimpleConfigResult> promise, bool prefer_ipv6, Slice domain_name,
-                                   bool is_test, int32 scheduler_id) {
-  string url = PSTRING() << "https://software-download.microsoft.com/" << (is_test ? "test" : "prod")
-                         << "v2/config.txt";
-  return get_simple_config_impl(std::move(promise), scheduler_id, std::move(url), "tcdnb.azureedge.net", {},
-                                prefer_ipv6,
-                                [](HttpQuery &http_query) -> Result<string> { return http_query.content_.str(); });
-}
-
-static ActorOwn<> get_simple_config_dns(Slice address, Slice host, Promise<SimpleConfigResult> promise,
-                                        bool prefer_ipv6, Slice domain_name, bool is_test, int32 scheduler_id) {
-  if (domain_name.empty()) {
-    domain_name = is_test ? Slice("tapv3.stel.com") : Slice("apv3.stel.com");
-  }
-  auto get_config = [](HttpQuery &http_query) -> Result<string> {
-    auto get_data = [](JsonValue &answer) -> Result<string> {
-      auto &answer_array = answer.get_array();
-      vector<string> parts;
-      for (auto &answer_part : answer_array) {
-        if (answer_part.type() != JsonValue::Type::Object) {
-          return Status::Error("Expected JSON object");
-        }
-        auto &data_object = answer_part.get_object();
-        TRY_RESULT(part, data_object.get_required_string_field("data"));
-        parts.push_back(std::move(part));
-      }
-      if (parts.size() != 2) {
-        return Status::Error("Expected data in two parts");
-      }
-      string data;
-      if (parts[0].size() < parts[1].size()) {
-        data = parts[1] + parts[0];
-      } else {
-        data = parts[0] + parts[1];
-      }
-      return data;
-    };
-    if (!http_query.get_arg("Answer").empty()) {
-      VLOG(config_recoverer) << "Receive DNS response " << http_query.get_arg("Answer");
-      TRY_RESULT(answer, json_decode(http_query.get_arg("Answer")));
-      if (answer.type() != JsonValue::Type::Array) {
-        return Status::Error("Expected JSON array");
-      }
-      return get_data(answer);
-    } else {
-      VLOG(config_recoverer) << "Receive DNS response " << http_query.content_;
-      TRY_RESULT(json, json_decode(http_query.content_));
-      if (json.type() != JsonValue::Type::Object) {
-        return Status::Error("Expected JSON object");
-      }
-      auto &answer_object = json.get_object();
-      TRY_RESULT(answer, answer_object.extract_required_field("Answer", JsonValue::Type::Array));
-      return get_data(answer);
-    }
-  };
-  return get_simple_config_impl(
-      std::move(promise), scheduler_id,
-      PSTRING() << "https://" << address << "?name=" << url_encode(domain_name) << "&type=TXT", host.str(),
-      {{"Accept", "application/dns-json"}}, prefer_ipv6, std::move(get_config));
-}
-
-ActorOwn<> get_simple_config_google_dns(Promise<SimpleConfigResult> promise, bool prefer_ipv6, Slice domain_name,
-                                        bool is_test, int32 scheduler_id) {
-  return get_simple_config_dns("dns.google/resolve", "dns.google", std::move(promise), prefer_ipv6, domain_name,
-                               is_test, scheduler_id);
-}
-
-ActorOwn<> get_simple_config_mozilla_dns(Promise<SimpleConfigResult> promise, bool prefer_ipv6, Slice domain_name,
-                                         bool is_test, int32 scheduler_id) {
-  return get_simple_config_dns("mozilla.cloudflare-dns.com/dns-query", "mozilla.cloudflare-dns.com", std::move(promise),
-                               prefer_ipv6, domain_name, is_test, scheduler_id);
-}
-
-static string generate_firebase_remote_config_payload() {
-  unsigned char buf[17];
-  Random::secure_bytes(buf, sizeof(buf));
-  buf[0] = static_cast<unsigned char>((buf[0] & 0xF0) | 0x07);
-  auto app_instance_id = base64url_encode(Slice(buf, sizeof(buf)));
-  app_instance_id.resize(22);
-  return PSTRING() << "{\"app_id\":\"1:560508485281:web:4ee13a6af4e84d49e67ae0\",\"app_instance_id\":\""
-                   << app_instance_id << "\"}";
-}
-
-ActorOwn<> get_simple_config_firebase_remote_config(Promise<SimpleConfigResult> promise, bool prefer_ipv6,
-                                                    Slice domain_name, bool is_test, int32 scheduler_id) {
-  if (is_test) {
-    promise.set_error(Status::Error(400, "Test config is not supported"));
-    return ActorOwn<>();
-  }
-
-  static const string payload = generate_firebase_remote_config_payload();
-  string url =
-      "https://firebaseremoteconfig.googleapis.com/v1/projects/peak-vista-421/namespaces/"
-      "firebase:fetch?key=AIzaSyC2-kAkpDsroixRXw-sTw-Wfqo4NxjMwwM";
-  auto get_config = [](HttpQuery &http_query) -> Result<string> {
-    TRY_RESULT(json, json_decode(http_query.get_arg("entries")));
-    if (json.type() != JsonValue::Type::Object) {
-      return Status::Error("Expected JSON object");
-    }
-    auto &entries_object = json.get_object();
-    TRY_RESULT(config, entries_object.get_required_string_field("ipconfigv3"));
-    return std::move(config);
-  };
-  return get_simple_config_impl(std::move(promise), scheduler_id, std::move(url), "firebaseremoteconfig.googleapis.com",
-                                {}, prefer_ipv6, std::move(get_config), payload, "application/json");
-}
-
-ActorOwn<> get_simple_config_firebase_realtime(Promise<SimpleConfigResult> promise, bool prefer_ipv6, Slice domain_name,
-                                               bool is_test, int32 scheduler_id) {
-  if (is_test) {
-    promise.set_error(Status::Error(400, "Test config is not supported"));
-    return ActorOwn<>();
-  }
-
-  string url = "https://reserve-5a846.firebaseio.com/ipconfigv3.json";
-  auto get_config = [](HttpQuery &http_query) -> Result<string> {
-    return http_query.get_arg("content").str();
-  };
-  return get_simple_config_impl(std::move(promise), scheduler_id, std::move(url), "reserve-5a846.firebaseio.com", {},
-                                prefer_ipv6, std::move(get_config));
-}
-
-ActorOwn<> get_simple_config_firebase_firestore(Promise<SimpleConfigResult> promise, bool prefer_ipv6,
-                                                Slice domain_name, bool is_test, int32 scheduler_id) {
-  if (is_test) {
-    promise.set_error(Status::Error(400, "Test config is not supported"));
-    return ActorOwn<>();
-  }
-
-  string url = "https://www.google.com/v1/projects/reserve-5a846/databases/(default)/documents/ipconfig/v3";
-  auto get_config = [](HttpQuery &http_query) -> Result<string> {
-    TRY_RESULT(json, json_decode(http_query.get_arg("fields")));
-    if (json.type() != JsonValue::Type::Object) {
-      return Status::Error("Expected JSON object");
-    }
-    auto &json_object = json.get_object();
-    TRY_RESULT(data, json_object.extract_required_field("data", JsonValue::Type::Object));
-    auto &data_object = data.get_object();
-    TRY_RESULT(config, data_object.get_required_string_field("stringValue"));
-    return std::move(config);
-  };
-  return get_simple_config_impl(std::move(promise), scheduler_id, std::move(url), "firestore.googleapis.com", {},
-                                prefer_ipv6, std::move(get_config));
-}
-
-static ActorOwn<> get_full_config(DcOption option, Promise<tl_object_ptr<telegram_api::config>> promise,
-                                  ActorShared<> parent) {
-  class SessionCallback final : public Session::Callback {
-   public:
-    SessionCallback(ActorShared<> parent, DcOption option) : parent_(std::move(parent)), option_(std::move(option)) {
-    }
-    void on_failed() final {
-    }
-    void on_closed() final {
-    }
-    void request_raw_connection(unique_ptr<mtproto::AuthData> auth_data,
-                                Promise<unique_ptr<mtproto::RawConnection>> promise) final {
-      request_raw_connection_cnt_++;
-      VLOG(config_recoverer) << "Request full config from " << option_.get_ip_address()
-                             << ", try = " << request_raw_connection_cnt_;
-      if (request_raw_connection_cnt_ <= 2) {
-        send_closure(G()->connection_creator(), &ConnectionCreator::request_raw_connection_by_ip,
-                     option_.get_ip_address(),
-                     mtproto::TransportType{mtproto::TransportType::ObfuscatedTcp,
-                                            narrow_cast<int16>(option_.get_dc_id().get_raw_id()), option_.get_secret()},
-                     std::move(promise));
-      } else {
-        // Delay all queries except first forever
-        delay_forever_.push_back(std::move(promise));
-      }
-    }
-    void on_tmp_auth_key_updated(mtproto::AuthKey auth_key) final {
-      // nop
-    }
-    void on_server_salt_updated(std::vector<mtproto::ServerSalt> server_salts) final {
-      // nop
-    }
-    void on_update(BufferSlice &&update, uint64 auth_key_id) final {
-      // nop
-    }
-    void on_result(NetQueryPtr net_query) final {
-      G()->net_query_dispatcher().dispatch(std::move(net_query));
-    }
-
-   private:
-    ActorShared<> parent_;
-    DcOption option_;
-    size_t request_raw_connection_cnt_{0};
-    std::vector<Promise<unique_ptr<mtproto::RawConnection>>> delay_forever_;
-  };
-
-  class SimpleAuthData final : public AuthDataShared {
-   public:
-    explicit SimpleAuthData(DcId dc_id)
-        : dc_id_(dc_id), public_rsa_key_(PublicRsaKeySharedMain::create(G()->is_test_dc())) {
-    }
-    DcId dc_id() const final {
-      return dc_id_;
-    }
-    const std::shared_ptr<mtproto::PublicRsaKeyInterface> &public_rsa_key() final {
-      return public_rsa_key_;
-    }
-    mtproto::AuthKey get_auth_key() final {
-      string dc_key = G()->td_db()->get_binlog_pmc()->get(auth_key_key());
-
-      mtproto::AuthKey res;
-      if (!dc_key.empty()) {
-        unserialize(res, dc_key).ensure();
-      }
-      return res;
-    }
-    void set_auth_key(const mtproto::AuthKey &auth_key) final {
-      G()->td_db()->get_binlog_pmc()->set(auth_key_key(), serialize(auth_key));
-
-      //notify();
-    }
-    void update_server_time_difference(double diff, bool force) final {
-      G()->update_server_time_difference(diff, force);
-    }
-    double get_server_time_difference() final {
-      return G()->get_server_time_difference();
-    }
-    void add_auth_key_listener(unique_ptr<Listener> listener) final {
-      CHECK(listener != nullptr);
-      if (listener->notify()) {
-        auth_key_listeners_.push_back(std::move(listener));
-      }
-    }
-
-    void set_future_salts(const std::vector<mtproto::ServerSalt> &future_salts) final {
-      G()->td_db()->get_binlog_pmc()->set(future_salts_key(), serialize(future_salts));
-    }
-
-    std::vector<mtproto::ServerSalt> get_future_salts() final {
-      string future_salts = G()->td_db()->get_binlog_pmc()->get(future_salts_key());
-      std::vector<mtproto::ServerSalt> res;
-      if (!future_salts.empty()) {
-        unserialize(res, future_salts).ensure();
-      }
-      return res;
-    }
-
-   private:
-    DcId dc_id_;
-    std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key_;
-    vector<unique_ptr<Listener>> auth_key_listeners_;
-    /*
-    void notify() {
-      td::remove_if(auth_key_listeners_, [&](auto &listener) {
-        CHECK(listener != nullptr);
-        return !listener->notify();
-      });
-    }
-    */
-    string auth_key_key() const {
-      return PSTRING() << "config_recovery_auth" << dc_id().get_raw_id();
-    }
-
-    string future_salts_key() const {
-      return PSTRING() << "config_recovery_salt" << dc_id().get_raw_id();
-    }
-  };
-
-  class GetConfigActor final : public NetQueryCallback {
-   public:
-    GetConfigActor(DcOption option, Promise<tl_object_ptr<telegram_api::config>> promise, ActorShared<> parent)
-        : option_(std::move(option)), promise_(std::move(promise)), parent_(std::move(parent)) {
-    }
-
-   private:
-    void start_up() final {
-      auto auth_data = std::make_shared<SimpleAuthData>(option_.get_dc_id());
-      int32 raw_dc_id = option_.get_dc_id().get_raw_id();
-      auto session_callback = make_unique<SessionCallback>(actor_shared(this, 1), std::move(option_));
-
-      int32 int_dc_id = raw_dc_id;
-      if (G()->is_test_dc()) {
-        int_dc_id += 10000;
-      }
-      session_ = create_actor<Session>(
-          "ConfigSession", std::move(session_callback), std::move(auth_data), raw_dc_id, int_dc_id,
-          false /*is_primary*/, false /*is_main*/, true /*use_pfs*/, false /*persist_tmp_auth_key*/, false /*is_cdn*/,
-          false /*need_destroy_auth_key*/, mtproto::AuthKey(), std::vector<mtproto::ServerSalt>());
-      auto query = G()->net_query_creator().create_unauth(telegram_api::help_getConfig(), DcId::empty());
-      query->total_timeout_limit_ = 60 * 60 * 24;
-      query->set_callback(actor_shared(this));
-      query->dispatch_ttl_ = 0;
-      send_closure(session_, &Session::send, std::move(query));
-      set_timeout_in(10);
-    }
-    void on_result(NetQueryPtr query) final {
-      promise_.set_result(fetch_result<telegram_api::help_getConfig>(std::move(query)));
-    }
-    void hangup_shared() final {
-      if (get_link_token() == 1) {
-        if (promise_) {
-          promise_.set_error(Status::Error("Failed"));
-        }
-        stop();
-      }
-    }
-    void hangup() final {
-      session_.reset();
-    }
-    void timeout_expired() final {
-      promise_.set_error(Status::Error("Timeout expired"));
-      session_.reset();
-    }
-
-    DcOption option_;
-    ActorOwn<Session> session_;
-    Promise<tl_object_ptr<telegram_api::config>> promise_;
-    ActorShared<> parent_;
-  };
-
-  return ActorOwn<>(
-      create_actor<GetConfigActor>("GetConfigActor", std::move(option), std::move(promise), std::move(parent)));
-}
-
-class ConfigRecoverer final : public Actor {
- public:
-  explicit ConfigRecoverer(ActorShared<> parent) : parent_(std::move(parent)) {
-    connecting_since_ = Time::now();
-  }
-
-  void on_dc_options_update(DcOptions dc_options) {
-    dc_options_update_ = std::move(dc_options);
-    update_dc_options();
-    loop();
-  }
-
- private:
-  void on_network(bool has_network, uint32 network_generation) {
-    has_network_ = has_network;
-    if (network_generation_ != network_generation) {
-      if (has_network_) {
-        has_network_since_ = Time::now_cached();
-      }
-    }
-    loop();
-  }
-  void on_online(bool is_online) {
-    if (is_online_ == is_online) {
-      return;
-    }
-
-    is_online_ = is_online;
-    if (is_online) {
-      if (simple_config_.dc_options.empty()) {
-        simple_config_expires_at_ = 0;
-      }
-      if (full_config_ == nullptr) {
-        full_config_expires_at_ = 0;
-      }
-    }
-    loop();
-  }
-  void on_connecting(bool is_connecting) {
-    VLOG(config_recoverer) << "On connecting " << is_connecting;
-    if (is_connecting && !is_connecting_) {
-      connecting_since_ = Time::now_cached();
-    }
-    is_connecting_ = is_connecting;
-    loop();
-  }
-
-  static bool check_phone_number_rules(Slice phone_number, Slice rules) {
-    if (rules.empty() || phone_number.empty()) {
-      return true;
-    }
-
-    bool found = false;
-    for (auto prefix : full_split(rules, ',')) {
-      if (prefix.empty()) {
-        found = true;
-      } else if (prefix[0] == '+' && begins_with(phone_number, prefix.substr(1))) {
-        found = true;
-      } else if (prefix[0] == '-' && begins_with(phone_number, prefix.substr(1))) {
-        return false;
-      } else {
-        LOG(ERROR) << "Invalid prefix rule " << prefix;
-      }
-    }
-    return found;
-  }
-
-  void on_simple_config(Result<SimpleConfigResult> r_simple_config_result, bool dummy) {
-    simple_config_query_.reset();
-    dc_options_i_ = 0;
-
-    SimpleConfigResult cfg;
-    if (r_simple_config_result.is_error()) {
-      cfg.r_http_date = r_simple_config_result.error().clone();
-      cfg.r_config = r_simple_config_result.move_as_error();
-    } else {
-      cfg = r_simple_config_result.move_as_ok();
-    }
-
-    if (cfg.r_http_date.is_ok() && (date_option_i_ == 0 || cfg.r_config.is_error())) {
-      G()->update_dns_time_difference(cfg.r_http_date.ok() - Time::now());
-    } else if (cfg.r_config.is_ok()) {
-      G()->update_dns_time_difference(cfg.r_config.ok()->date_ - Time::now());
-    }
-    date_option_i_ = (date_option_i_ + 1) % 2;
-
-    do_on_simple_config(std::move(cfg.r_config));
-    update_dc_options();
-    loop();
-  }
-
-  void do_on_simple_config(Result<SimpleConfig> r_simple_config) {
-    if (r_simple_config.is_ok()) {
-      auto config = r_simple_config.move_as_ok();
-      VLOG(config_recoverer) << "Receive raw " << to_string(config);
-      if (config->expires_ >= G()->unix_time()) {
-        string phone_number = G()->get_option_string("my_phone_number");
-        simple_config_.dc_options.clear();
-
-        for (auto &rule : config->rules_) {
-          if (check_phone_number_rules(phone_number, rule->phone_prefix_rules_) && DcId::is_valid(rule->dc_id_)) {
-            DcId dc_id = DcId::internal(rule->dc_id_);
-            for (auto &ip_port : rule->ips_) {
-              DcOption option(dc_id, *ip_port);
-              if (option.is_valid()) {
-                simple_config_.dc_options.push_back(std::move(option));
-              }
-            }
-          }
-        }
-        VLOG(config_recoverer) << "Receive SimpleConfig " << simple_config_;
-      } else {
-        VLOG(config_recoverer) << "Config has expired at " << config->expires_;
-      }
-
-      simple_config_expires_at_ = get_config_expire_time();
-      simple_config_at_ = Time::now_cached();
-      for (size_t i = 1; i < simple_config_.dc_options.size(); i++) {
-        std::swap(simple_config_.dc_options[i], simple_config_.dc_options[Random::fast(0, static_cast<int>(i))]);
-      }
-    } else {
-      VLOG(config_recoverer) << "Get SimpleConfig error " << r_simple_config.error();
-      simple_config_ = DcOptions();
-      simple_config_expires_at_ = get_failed_config_expire_time();
-    }
-  }
-
-  void on_full_config(Result<tl_object_ptr<telegram_api::config>> r_full_config, bool dummy) {
-    full_config_query_.reset();
-    if (r_full_config.is_ok()) {
-      full_config_ = r_full_config.move_as_ok();
-      VLOG(config_recoverer) << "Receive " << to_string(full_config_);
-      full_config_expires_at_ = get_config_expire_time();
-      send_closure(G()->connection_creator(), &ConnectionCreator::on_dc_options, DcOptions(full_config_->dc_options_));
-    } else {
-      VLOG(config_recoverer) << "Failed to get config: " << r_full_config.error();
-      full_config_ = nullptr;
-      full_config_expires_at_ = get_failed_config_expire_time();
-    }
-    loop();
-  }
-
-  static bool expect_blocking() {
-    return G()->get_option_boolean("expect_blocking", true);
-  }
-
-  double get_config_expire_time() const {
-    auto offline_delay = is_online_ ? 0 : 5 * 60;
-    auto expire_time = expect_blocking() ? Random::fast(2 * 60, 3 * 60) : Random::fast(20 * 60, 30 * 60);
-    return Time::now() + offline_delay + expire_time;
-  }
-
-  double get_failed_config_expire_time() const {
-    auto offline_delay = is_online_ ? 0 : 5 * 60;
-    auto expire_time = expect_blocking() ? Random::fast(5, 7) : Random::fast(15, 30);
-    return Time::now() + offline_delay + expire_time;
-  }
-
-  bool is_connecting_{false};
-  double connecting_since_{0};
-
-  bool is_online_{false};
-
-  bool has_network_{false};
-  double has_network_since_{0};
-  uint32 network_generation_{0};
-
-  DcOptions simple_config_;
-  double simple_config_expires_at_{0};
-  double simple_config_at_{0};
-  ActorOwn<> simple_config_query_;
-
-  DcOptions dc_options_update_;
-
-  DcOptions dc_options_;  // dc_options_update_ + simple_config_
-  double dc_options_at_{0};
-  size_t dc_options_i_{0};
-
-  size_t date_option_i_{0};
-
-  tl_object_ptr<telegram_api::config> full_config_;
-  double full_config_expires_at_{0};
-  ActorOwn<> full_config_query_;
-
-  uint32 ref_cnt_{1};
-  bool close_flag_{false};
-  uint32 simple_config_turn_{0};
-
-  ActorShared<> parent_;
-
-  void hangup_shared() final {
-    ref_cnt_--;
-    try_stop();
-  }
-  void hangup() final {
-    ref_cnt_--;
-    close_flag_ = true;
-    full_config_query_.reset();
-    simple_config_query_.reset();
-    try_stop();
-  }
-
-  void try_stop() {
-    if (ref_cnt_ == 0) {
-      stop();
-    }
-  }
-
-  double max_connecting_delay() const {
-    return expect_blocking() ? 5 : 20;
-  }
-
-  void loop() final {
-    if (close_flag_) {
-      return;
-    }
-    if (Session::is_high_loaded()) {
-      VLOG(config_recoverer) << "Skip config recoverer under high load";
-      set_timeout_in(Random::fast(200, 300));
-      return;
-    }
-
-    if (is_connecting_) {
-      VLOG(config_recoverer) << "Failed to connect for " << Time::now() - connecting_since_ << " seconds";
-    } else {
-      VLOG(config_recoverer) << "Successfully connected in " << Time::now() - connecting_since_ << " seconds";
-    }
-
-    Timestamp wakeup_timestamp;
-    auto check_timeout = [&](Timestamp timestamp) {
-      if (timestamp.at() < Time::now_cached()) {
-        return true;
-      }
-      wakeup_timestamp.relax(timestamp);
-      return false;
-    };
-
-    bool has_connecting_problem =
-        is_connecting_ && check_timeout(Timestamp::at(connecting_since_ + max_connecting_delay()));
-    bool is_valid_simple_config = !check_timeout(Timestamp::at(simple_config_expires_at_));
-    if (!is_valid_simple_config && !simple_config_.dc_options.empty()) {
-      simple_config_ = DcOptions();
-      update_dc_options();
-    }
-    bool need_simple_config = has_connecting_problem && !is_valid_simple_config && simple_config_query_.empty();
-    bool has_dc_options = !dc_options_.dc_options.empty();
-    bool is_valid_full_config = !check_timeout(Timestamp::at(full_config_expires_at_));
-    bool need_full_config = has_connecting_problem && has_dc_options && !is_valid_full_config &&
-                            full_config_query_.empty() &&
-                            check_timeout(Timestamp::at(dc_options_at_ + (expect_blocking() ? 5 : 10)));
-    if (need_simple_config) {
-      ref_cnt_++;
-      VLOG(config_recoverer) << "Ask simple config with turn " << simple_config_turn_;
-      auto promise = PromiseCreator::lambda([self = actor_shared(this)](Result<SimpleConfigResult> r_simple_config) {
-        send_closure(self, &ConfigRecoverer::on_simple_config, std::move(r_simple_config), false);
-      });
-      auto get_simple_config = [&] {
-        switch (simple_config_turn_ % 10) {
-          case 6:
-            return get_simple_config_azure;
-          case 2:
-            return get_simple_config_firebase_remote_config;
-          case 4:
-            return get_simple_config_firebase_firestore;
-          case 9:
-            return get_simple_config_firebase_realtime;
-          case 0:
-          case 3:
-          case 8:
-            return get_simple_config_google_dns;
-          case 1:
-          case 5:
-          case 7:
-          default:
-            return get_simple_config_mozilla_dns;
-        }
-      }();
-      simple_config_query_ = get_simple_config(std::move(promise), G()->get_option_boolean("prefer_ipv6"),
-                                               G()->get_option_string("dc_txt_domain_name"), G()->is_test_dc(),
-                                               G()->get_gc_scheduler_id());
-      simple_config_turn_++;
-    }
-
-    if (need_full_config) {
-      ref_cnt_++;
-      VLOG(config_recoverer) << "Ask full config with dc_options_i_ = " << dc_options_i_;
-      full_config_query_ = get_full_config(
-          dc_options_.dc_options[dc_options_i_],
-          PromiseCreator::lambda(
-              [actor_id = actor_id(this)](Result<tl_object_ptr<telegram_api::config>> r_full_config) {
-                send_closure(actor_id, &ConfigRecoverer::on_full_config, std::move(r_full_config), false);
-              }),
-          actor_shared(this));
-      dc_options_i_ = (dc_options_i_ + 1) % dc_options_.dc_options.size();
-    }
-
-    if (wakeup_timestamp) {
-      VLOG(config_recoverer) << "Wakeup in " << format::as_time(wakeup_timestamp.in());
-      set_timeout_at(wakeup_timestamp.at());
-    }
-  }
-
-  void start_up() final {
-    class StateCallback final : public StateManager::Callback {
-     public:
-      explicit StateCallback(ActorId<ConfigRecoverer> parent) : parent_(std::move(parent)) {
-      }
-      bool on_state(ConnectionState state) final {
-        send_closure(parent_, &ConfigRecoverer::on_connecting, state == ConnectionState::Connecting);
-        return parent_.is_alive();
-      }
-      bool on_network(NetType network_type, uint32 network_generation) final {
-        send_closure(parent_, &ConfigRecoverer::on_network, network_type != NetType::None, network_generation);
-        return parent_.is_alive();
-      }
-      bool on_online(bool online_flag) final {
-        send_closure(parent_, &ConfigRecoverer::on_online, online_flag);
-        return parent_.is_alive();
-      }
-
-     private:
-      ActorId<ConfigRecoverer> parent_;
-    };
-    send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-  }
-
-  void update_dc_options() {
-    auto new_dc_options = simple_config_.dc_options;
-    new_dc_options.insert(new_dc_options.begin(), dc_options_update_.dc_options.begin(),
-                          dc_options_update_.dc_options.end());
-    if (new_dc_options != dc_options_.dc_options) {
-      dc_options_.dc_options = std::move(new_dc_options);
-      dc_options_i_ = 0;
-      dc_options_at_ = Time::now();
-    }
-  }
-};
-
-template <class StorerT>
-void ConfigManager::AppConfig::store(StorerT &storer) const {
-  td::store(version_, storer);
-  td::store(hash_, storer);
-  config_->store(storer);
-}
-
-template <class ParserT>
-void ConfigManager::AppConfig::parse(ParserT &parser) {
-  td::parse(version_, parser);
-  if (version_ != CURRENT_VERSION) {
-    return parser.set_error("Invalid config version");
-  }
-  td::parse(hash_, parser);
-  auto buffer = parser.template fetch_string_raw<BufferSlice>(parser.get_left_len());
-  TlBufferParser buffer_parser{&buffer};
-  config_ = telegram_api::jsonObject::fetch(buffer_parser);
-  buffer_parser.fetch_end();
-  if (buffer_parser.get_error() != nullptr) {
-    return parser.set_error(buffer_parser.get_error());
-  }
-}
-
-ConfigManager::ConfigManager(ActorShared<> parent) : parent_(std::move(parent)) {
-  lazy_request_flood_control_.add_limit(20, 1);
-
-  if (log_event_parse(app_config_, G()->td_db()->get_binlog_pmc()->get("app_config")).is_error()) {
-    app_config_ = AppConfig();
-  }
-}
-
-void ConfigManager::start_up() {
-  config_recoverer_ = create_actor<ConfigRecoverer>("Recoverer", create_reference());
-  send_closure(config_recoverer_, &ConfigRecoverer::on_dc_options_update, load_dc_options_update());
-
-  auto expire_time = load_config_expire_time();
-  auto auth_manager = G()->td().get_actor_unsafe()->auth_manager_.get();
-  bool reload_config_on_restart = auth_manager == nullptr || !auth_manager->is_bot();
-  if (expire_time.is_in_past() || reload_config_on_restart) {
-    request_config(false);
-  } else {
-    expire_time_ = expire_time;
-    set_timeout_in(expire_time_.in());
-  }
-}
-
-ActorShared<> ConfigManager::create_reference() {
-  ref_cnt_++;
-  return actor_shared(this, REFCNT_TOKEN);
-}
-
-void ConfigManager::hangup_shared() {
-  LOG_CHECK(get_link_token() == REFCNT_TOKEN) << "Receive link token " << get_link_token();
-  ref_cnt_--;
-  try_stop();
-}
-
-void ConfigManager::hangup() {
-  ref_cnt_--;
-  config_recoverer_.reset();
-  try_stop();
-}
-
-void ConfigManager::loop() {
-  if (expire_time_ && expire_time_.is_in_past()) {
-    request_config(reopen_sessions_after_get_config_);
-    expire_time_ = {};
-  }
-}
-
-void ConfigManager::try_stop() {
-  if (ref_cnt_ == 0) {
-    stop();
-  }
-}
-
-void ConfigManager::request_config(bool reopen_sessions) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  if (config_sent_cnt_ != 0 && !reopen_sessions) {
-    return;
-  }
-
-  lazy_request_flood_control_.add_event(Time::now());
-  request_config_from_dc_impl(DcId::main(), reopen_sessions);
-}
-
-void ConfigManager::lazy_request_config() {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  if (config_sent_cnt_ != 0) {
-    return;
-  }
-
-  expire_time_.relax(Timestamp::at(lazy_request_flood_control_.get_wakeup_at()));
-  set_timeout_at(expire_time_.at());
-}
-
-void ConfigManager::reget_config(Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  reget_config_queries_.push_back(std::move(promise));
-  if (reget_config_queries_.size() != 1) {
-    return;
-  }
-
-  request_config_from_dc_impl(DcId::main(), false);
-}
-
-void ConfigManager::try_request_app_config() {
-  if (get_app_config_queries_.size() + reget_app_config_queries_.size() != 1) {
-    return;
-  }
-
-  auto query = G()->net_query_creator().create_unauth(telegram_api::help_getAppConfig(app_config_.hash_));
-  query->total_timeout_limit_ = 60 * 60 * 24;
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, 1));
-}
-
-void ConfigManager::get_app_config(Promise<td_api::object_ptr<td_api::JsonValue>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto auth_manager = G()->td().get_actor_unsafe()->auth_manager_.get();
-  if (auth_manager != nullptr && auth_manager->is_bot()) {
-    return promise.set_value(nullptr);
-  }
-
-  get_app_config_queries_.push_back(std::move(promise));
-  try_request_app_config();
-}
-
-void ConfigManager::reget_app_config(Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto auth_manager = G()->td().get_actor_unsafe()->auth_manager_.get();
-  if (auth_manager != nullptr && auth_manager->is_bot()) {
-    return promise.set_value(Unit());
-  }
-
-  reget_app_config_queries_.push_back(std::move(promise));
-  try_request_app_config();
-}
-
-void ConfigManager::get_content_settings(Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto auth_manager = G()->td().get_actor_unsafe()->auth_manager_.get();
-  if (auth_manager == nullptr || !auth_manager->is_authorized() || auth_manager->is_bot()) {
-    return promise.set_value(Unit());
-  }
-
-  get_content_settings_queries_.push_back(std::move(promise));
-  if (get_content_settings_queries_.size() == 1) {
-    G()->net_query_dispatcher().dispatch_with_callback(
-        G()->net_query_creator().create(telegram_api::account_getContentSettings()), actor_shared(this, 2));
-  }
-}
-
-void ConfigManager::set_content_settings(bool ignore_sensitive_content_restrictions, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  last_set_content_settings_ = ignore_sensitive_content_restrictions;
-  auto &queries = set_content_settings_queries_[ignore_sensitive_content_restrictions];
-  queries.push_back(std::move(promise));
-  if (!is_set_content_settings_request_sent_) {
-    is_set_content_settings_request_sent_ = true;
-    G()->net_query_dispatcher().dispatch_with_callback(
-        G()->net_query_creator().create(
-            telegram_api::account_setContentSettings(0, ignore_sensitive_content_restrictions)),
-        actor_shared(this, 3 + static_cast<uint64>(ignore_sensitive_content_restrictions)));
-  }
-}
-
-void ConfigManager::on_dc_options_update(DcOptions dc_options) {
-  save_dc_options_update(dc_options);
-  if (!dc_options.dc_options.empty()) {
-    expire_time_ = Timestamp::now();
-    save_config_expire(expire_time_);
-    set_timeout_in(expire_time_.in());
-  }
-  send_closure(config_recoverer_, &ConfigRecoverer::on_dc_options_update, std::move(dc_options));
-}
-
-void ConfigManager::request_config_from_dc_impl(DcId dc_id, bool reopen_sessions) {
-  config_sent_cnt_++;
-  reopen_sessions_after_get_config_ |= reopen_sessions;
-  auto query = G()->net_query_creator().create_unauth(telegram_api::help_getConfig(), dc_id);
-  query->total_timeout_limit_ = 60 * 60 * 24;
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query),
-                                                     actor_shared(this, 8 + static_cast<uint64>(reopen_sessions)));
-}
-
-void ConfigManager::do_set_ignore_sensitive_content_restrictions(bool ignore_sensitive_content_restrictions) {
-  if (G()->have_option("ignore_sensitive_content_restrictions") &&
-      G()->get_option_boolean("ignore_sensitive_content_restrictions") == ignore_sensitive_content_restrictions) {
-    return;
-  }
-  G()->set_option_boolean("ignore_sensitive_content_restrictions", ignore_sensitive_content_restrictions);
-  reget_app_config(Auto());
-}
-
-void ConfigManager::on_result(NetQueryPtr net_query) {
-  auto token = get_link_token();
-  if (token == 3 || token == 4) {
-    is_set_content_settings_request_sent_ = false;
-    bool ignore_sensitive_content_restrictions = (token == 4);
-    auto result_ptr = fetch_result<telegram_api::account_setContentSettings>(std::move(net_query));
-    if (result_ptr.is_error()) {
-      fail_promises(set_content_settings_queries_[ignore_sensitive_content_restrictions], result_ptr.move_as_error());
-    } else {
-      if (G()->get_option_boolean("can_ignore_sensitive_content_restrictions") &&
-          last_set_content_settings_ == ignore_sensitive_content_restrictions) {
-        do_set_ignore_sensitive_content_restrictions(ignore_sensitive_content_restrictions);
-      }
-
-      set_promises(set_content_settings_queries_[ignore_sensitive_content_restrictions]);
-    }
-
-    if (!set_content_settings_queries_[!ignore_sensitive_content_restrictions].empty()) {
-      if (ignore_sensitive_content_restrictions == last_set_content_settings_) {
-        set_promises(set_content_settings_queries_[!ignore_sensitive_content_restrictions]);
-      } else {
-        set_content_settings(!ignore_sensitive_content_restrictions, Auto());
-      }
-    }
-    return;
-  }
-  if (token == 2) {
-    auto result_ptr = fetch_result<telegram_api::account_getContentSettings>(std::move(net_query));
-    if (result_ptr.is_error()) {
-      fail_promises(get_content_settings_queries_, result_ptr.move_as_error());
-      return;
-    }
-
-    auto result = result_ptr.move_as_ok();
-    do_set_ignore_sensitive_content_restrictions(result->sensitive_enabled_);
-    G()->set_option_boolean("can_ignore_sensitive_content_restrictions", result->sensitive_can_change_);
-
-    set_promises(get_content_settings_queries_);
-    return;
-  }
-  if (token == 1) {
-    auto promises = std::move(get_app_config_queries_);
-    get_app_config_queries_.clear();
-    auto unit_promises = std::move(reget_app_config_queries_);
-    reget_app_config_queries_.clear();
-    CHECK(!promises.empty() || !unit_promises.empty());
-    auto result_ptr = fetch_result<telegram_api::help_getAppConfig>(std::move(net_query));
-    if (result_ptr.is_error()) {
-      fail_promises(promises, result_ptr.error().clone());
-      fail_promises(unit_promises, result_ptr.move_as_error());
-      return;
-    }
-
-    auto app_config_ptr = result_ptr.move_as_ok();
-    if (app_config_ptr->get_id() == telegram_api::help_appConfigNotModified::ID) {
-      if (app_config_.version_ == 0) {
-        LOG(ERROR) << "Receive appConfigNotModified";
-        fail_promises(promises, Status::Error(500, "Receive unexpected response"));
-        fail_promises(unit_promises, Status::Error(500, "Receive unexpected response"));
-        return;
-      }
-      CHECK(app_config_.config_ != nullptr);
-    } else {
-      CHECK(app_config_ptr->get_id() == telegram_api::help_appConfig::ID);
-      auto app_config = telegram_api::move_object_as<telegram_api::help_appConfig>(app_config_ptr);
-      process_app_config(app_config->config_);
-      app_config_.version_ = AppConfig::CURRENT_VERSION;
-      app_config_.hash_ = app_config->hash_;
-      app_config_.config_ = std::move(app_config->config_);
-      CHECK(app_config_.config_ != nullptr);
-      G()->td_db()->get_binlog_pmc()->set("app_config", log_event_store(app_config_).as_slice().str());
-    }
-    G()->get_option_manager()->update_premium_options();
-    for (auto &promise : promises) {
-      promise.set_value(convert_json_value_object(app_config_.config_));
-    }
-    set_promises(unit_promises);
-    return;
-  }
-
-  CHECK(token == 8 || token == 9);
-  CHECK(config_sent_cnt_ > 0);
-  config_sent_cnt_--;
-  auto r_config = fetch_result<telegram_api::help_getConfig>(std::move(net_query));
-  if (r_config.is_error()) {
-    if (!G()->close_flag()) {
-      LOG(WARNING) << "Failed to get config: " << r_config.error();
-      expire_time_ = Timestamp::in(60.0);  // try again in a minute
-      set_timeout_in(expire_time_.in());
-    }
-    fail_promises(reget_config_queries_, r_config.move_as_error());
-  } else {
-    on_dc_options_update(DcOptions());
-    process_config(r_config.move_as_ok());
-    if (token == 9) {
-      G()->net_query_dispatcher().update_mtproto_header();
-      reopen_sessions_after_get_config_ = false;
-    }
-    set_promises(reget_config_queries_);
-  }
-}
-
-void ConfigManager::save_dc_options_update(const DcOptions &dc_options) {
-  if (dc_options.dc_options.empty()) {
-    G()->td_db()->get_binlog_pmc()->erase("dc_options_update");
-    return;
-  }
-  G()->td_db()->get_binlog_pmc()->set("dc_options_update", log_event_store(dc_options).as_slice().str());
-}
-
-DcOptions ConfigManager::load_dc_options_update() {
-  auto log_event_dc_options = G()->td_db()->get_binlog_pmc()->get("dc_options_update");
-  DcOptions dc_options;
-  if (!log_event_dc_options.empty()) {
-    log_event_parse(dc_options, log_event_dc_options).ensure();
-  }
-  return dc_options;
-}
-
-Timestamp ConfigManager::load_config_expire_time() {
-  auto expires_in = to_integer<int32>(G()->td_db()->get_binlog_pmc()->get("config_expire")) - Clocks::system();
-
-  if (expires_in < 0 || expires_in > 60 * 60 /* 1 hour */) {
-    return Timestamp::now();
-  } else {
-    return Timestamp::in(expires_in);
-  }
-}
-
-void ConfigManager::save_config_expire(Timestamp timestamp) {
-  G()->td_db()->get_binlog_pmc()->set("config_expire", to_string(static_cast<int>(Clocks::system() + timestamp.in())));
-}
-
-void ConfigManager::process_config(tl_object_ptr<telegram_api::config> config) {
-  bool is_from_main_dc = G()->net_query_dispatcher().get_main_dc_id().get_value() == config->this_dc_;
-
-  LOG(INFO) << to_string(config);
-  auto reload_in = clamp(config->expires_ - config->date_, 60, 86400);
-  save_config_expire(Timestamp::in(reload_in));
-  reload_in -= Random::fast(0, reload_in / 5);
-  if (!is_from_main_dc) {
-    reload_in = 0;
-  }
-  expire_time_ = Timestamp::in(reload_in);
-  set_timeout_at(expire_time_.at());
-  LOG_IF(ERROR, config->test_mode_ != G()->is_test_dc()) << "Wrong parameter is_test";
-
-  OptionManager &options = *G()->get_option_manager();
-
-  // Do not save dc_options in config, because it will be interpreted and saved by ConnectionCreator.
-  DcOptions dc_options(config->dc_options_);
-  std::stable_sort(dc_options.dc_options.begin(), dc_options.dc_options.end(),
-                   [](const DcOption &lhs, const DcOption &rhs) {
-                     if (lhs.get_dc_id() != rhs.get_dc_id()) {
-                       return lhs.get_dc_id() < rhs.get_dc_id();
-                     }
-                     return !lhs.is_ipv6() && rhs.is_ipv6();
-                   });
-  send_closure(G()->connection_creator(), &ConnectionCreator::on_dc_options, std::move(dc_options));
-
-  options.set_option_integer("recent_stickers_limit", config->stickers_recent_limit_);
-  options.set_option_integer("channels_read_media_period", config->channels_read_media_period_);
-
-  send_closure(G()->link_manager(), &LinkManager::update_autologin_token, std::move(config->autologin_token_));
-
-  options.set_option_boolean("test_mode", config->test_mode_);
-  options.set_option_integer("forwarded_message_count_max", config->forwarded_count_max_);
-  options.set_option_integer("basic_group_size_max", config->chat_size_max_);
-  options.set_option_integer("supergroup_size_max", config->megagroup_size_max_);
-  if (is_from_main_dc || !options.have_option("expect_blocking")) {
-    options.set_option_boolean("expect_blocking", config->blocked_mode_);
-  }
-  if (is_from_main_dc || !options.have_option("dc_txt_domain_name")) {
-    options.set_option_string("dc_txt_domain_name", config->dc_txt_domain_name_);
-  }
-  if (is_from_main_dc || !options.have_option("t_me_url")) {
-    auto url = config->me_url_prefix_;
-    if (!url.empty()) {
-      if (url.back() != '/') {
-        url.push_back('/');
-      }
-      options.set_option_string("t_me_url", url);
-    }
-  }
-  if (is_from_main_dc) {
-    options.set_option_integer("webfile_dc_id", config->webfile_dc_id_);
-    if (config->tmp_sessions_ > 1) {
-      options.set_option_integer("session_count", config->tmp_sessions_);
-    } else {
-      options.set_option_empty("session_count");
-    }
-    if (!config->suggested_lang_code_.empty() || config->lang_pack_version_ > 0 ||
-        config->base_lang_pack_version_ > 0) {
-      options.set_option_string("suggested_language_pack_id", config->suggested_lang_code_);
-      options.set_option_integer("language_pack_version", config->lang_pack_version_);
-      options.set_option_integer("base_language_pack_version", config->base_lang_pack_version_);
-    } else {
-      options.set_option_empty("suggested_language_pack_id");
-      options.set_option_empty("language_pack_version");
-      options.set_option_empty("base_language_pack_version");
-    }
-  }
-
-  if (is_from_main_dc) {
-    options.set_option_integer("edit_time_limit", config->edit_time_limit_);
-    options.set_option_boolean("revoke_pm_inbox", config->revoke_pm_inbox_);
-    options.set_option_integer("revoke_time_limit", config->revoke_time_limit_);
-    options.set_option_integer("revoke_pm_time_limit", config->revoke_pm_time_limit_);
-
-    options.set_option_integer("rating_e_decay", config->rating_e_decay_);
-  }
-  options.set_option_integer("call_ring_timeout_ms", config->call_ring_timeout_ms_);
-  options.set_option_integer("call_connect_timeout_ms", config->call_connect_timeout_ms_);
-  options.set_option_integer("call_packet_timeout_ms", config->call_packet_timeout_ms_);
-  options.set_option_integer("call_receive_timeout_ms", config->call_receive_timeout_ms_);
-
-  options.set_option_integer("message_text_length_max", clamp(config->message_length_max_, 4096, 1000000));
-  options.set_option_integer("message_caption_length_max", clamp(config->caption_length_max_, 1024, 1000000));
-
-  if (config->gif_search_username_.empty()) {
-    options.set_option_empty("animation_search_bot_username");
-  } else {
-    options.set_option_string("animation_search_bot_username", config->gif_search_username_);
-  }
-  if (!options.have_option("venue_search_bot_username")) {
-    if (config->venue_search_username_.empty()) {
-      options.set_option_empty("venue_search_bot_username");
-    } else {
-      options.set_option_string("venue_search_bot_username", config->venue_search_username_);
-    }
-  }
-  if (config->img_search_username_.empty()) {
-    options.set_option_empty("photo_search_bot_username");
-  } else {
-    options.set_option_string("photo_search_bot_username", config->img_search_username_);
-  }
-
-  auto fix_timeout_ms = [](int32 timeout_ms) {
-    return clamp(timeout_ms, 1000, 86400 * 1000);
-  };
-
-  options.set_option_integer("online_update_period_ms", fix_timeout_ms(config->online_update_period_ms_));
-
-  options.set_option_integer("online_cloud_timeout_ms", fix_timeout_ms(config->online_cloud_timeout_ms_));
-  options.set_option_integer("notification_cloud_delay_ms", fix_timeout_ms(config->notify_cloud_delay_ms_));
-  options.set_option_integer("notification_default_delay_ms", fix_timeout_ms(config->notify_default_delay_ms_));
-
-  if (is_from_main_dc && !options.have_option("default_reaction_need_sync")) {
-    ReactionType reaction_type(config->reactions_default_);
-    if (!reaction_type.is_empty() && !reaction_type.is_paid_reaction()) {
-      options.set_option_string("default_reaction", reaction_type.get_string());
-    }
-  }
-
-  // delete outdated options
-  options.set_option_empty("suggested_language_code");
-  options.set_option_empty("chat_big_size");
-  options.set_option_empty("group_size_max");
-  options.set_option_empty("saved_gifs_limit");
-  options.set_option_empty("sessions_count");
-  options.set_option_empty("forwarded_messages_count_max");
-  options.set_option_empty("broadcast_size_max");
-  options.set_option_empty("group_chat_size_max");
-  options.set_option_empty("chat_size_max");
-  options.set_option_empty("megagroup_size_max");
-  options.set_option_empty("offline_blur_timeout_ms");
-  options.set_option_empty("offline_idle_timeout_ms");
-  options.set_option_empty("notify_cloud_delay_ms");
-  options.set_option_empty("notify_default_delay_ms");
-  options.set_option_empty("large_chat_size");
-  options.set_option_empty("calls_enabled");
-
-  // TODO implement online status updates
-  //  options.set_option_integer("offline_blur_timeout_ms", config->offline_blur_timeout_ms_);
-  //  options.set_option_integer("offline_idle_timeout_ms", config->offline_idle_timeout_ms_);
-
-  //  options.set_option_integer("push_chat_period_ms", config->push_chat_period_ms_);
-  //  options.set_option_integer("push_chat_limit", config->push_chat_limit_);
-
-  if (is_from_main_dc) {
-    reget_app_config(Auto());
-    if (!options.have_option("can_ignore_sensitive_content_restrictions") ||
-        !options.have_option("ignore_sensitive_content_restrictions")) {
-      get_content_settings(Auto());
-    }
-  }
-}
-
-void ConfigManager::process_app_config(tl_object_ptr<telegram_api::JSONValue> &config) {
-  CHECK(config != nullptr);
-  LOG(INFO) << "Receive app config " << to_string(config);
-
-  vector<string> autologin_domains;
-  vector<string> url_auth_domains;
-  vector<string> whitelisted_domains;
-
-  vector<tl_object_ptr<telegram_api::jsonObjectValue>> new_values;
-  string ignored_restriction_reasons;
-  string restriction_add_platforms;
-  vector<string> dice_emojis;
-  FlatHashMap<string, size_t> dice_emoji_index;
-  FlatHashMap<string, string> dice_emoji_success_value;
-  vector<string> emoji_sounds;
-  string animation_search_provider;
-  string animation_search_emojis;
-  vector<SuggestedAction> suggested_actions;
-  vector<string> dismissed_suggestions;
-  bool can_archive_and_mute_new_chats_from_unknown_users = false;
-  int32 chat_read_mark_expire_period = 0;
-  int32 chat_read_mark_size_threshold = 0;
-  double animated_emoji_zoom = 0.0;
-  int32 reactions_uniq_max = 0;
-  vector<string> premium_features;
-  auto &premium_limit_keys = get_premium_limit_keys();
-  string premium_bot_username;
-  string premium_invoice_slug;
-  bool is_premium_available = false;
-  int32 stickers_premium_by_emoji_num = 0;
-  int32 stickers_normal_by_emoji_per_premium_num = 2;
-  int32 telegram_antispam_group_size_min = 100;
-  int32 topics_pinned_limit = -1;
-  vector<string> fragment_prefixes;
-  bool premium_gift_attach_menu_icon = false;
-  bool premium_gift_text_field_icon = false;
-  int32 dialog_filter_update_period = 300;
-  // bool archive_all_stories = false;
-  int32 story_viewers_expire_period = 86400;
-  int64 stories_changelog_user_id = UserManager::get_service_notifications_user_id().get();
-  int32 transcribe_audio_trial_weekly_number = 0;
-  int32 transcribe_audio_trial_duration_max = 0;
-  int32 transcribe_audio_trial_cooldown_until = 0;
-  vector<string> business_features;
-  string premium_manage_subscription_url;
-  bool need_premium_for_new_chat_privacy = true;
-  bool channel_revenue_withdrawal_enabled = false;
-  bool can_edit_fact_check = false;
-  vector<string> starref_start_param_prefixes;
-  int32 freeze_since_date = 0;
-  int32 freeze_until_date = 0;
-  string freeze_appeal_url;
-  if (config->get_id() == telegram_api::jsonObject::ID) {
-    for (auto &key_value : static_cast<telegram_api::jsonObject *>(config.get())->value_) {
-      Slice key = key_value->key_;
-      telegram_api::JSONValue *value = key_value->value_.get();
-      if (key == "default_emoji_statuses_stickerset_id" || key == "forum_upgrade_participants_min" ||
-          key == "getfile_experimental_params" || key == "message_animated_emoji_max" ||
-          key == "stickers_emoji_cache_time" || key == "stories_export_nopublic_link" || key == "test" ||
-          key == "upload_max_fileparts_default" || key == "upload_max_fileparts_premium" ||
-          key == "wallet_blockchain_name" || key == "wallet_config" || key == "wallet_enabled" ||
-          key == "channel_color_level_min") {
-        continue;
-      }
-      if (key == "ignore_restriction_reasons") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto reasons = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &reason : reasons) {
-            auto reason_name = get_json_value_string(std::move(reason), key);
-            if (!reason_name.empty() && reason_name.find(',') == string::npos) {
-              if (!ignored_restriction_reasons.empty()) {
-                ignored_restriction_reasons += ',';
-              }
-              ignored_restriction_reasons += reason_name;
-            } else {
-              LOG(ERROR) << "Receive unexpected restriction reason " << reason_name;
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected ignore_restriction_reasons " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "restriction_add_platforms") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto platforms = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &platform : platforms) {
-            auto platform_name = get_json_value_string(std::move(platform), key);
-            if (!platform_name.empty() && platform_name.find(',') == string::npos) {
-              if (!restriction_add_platforms.empty()) {
-                restriction_add_platforms += ',';
-              }
-              restriction_add_platforms += platform_name;
-            } else {
-              LOG(ERROR) << "Receive unexpected restriction platform " << platform_name;
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected restriction_add_platforms " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "emojies_animated_zoom") {
-        animated_emoji_zoom = get_json_value_double(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "emojies_send_dice") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto emojis = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &emoji : emojis) {
-            auto emoji_text = get_json_value_string(std::move(emoji), key);
-            if (!emoji_text.empty()) {
-              dice_emoji_index[emoji_text] = dice_emojis.size();
-              dice_emojis.push_back(emoji_text);
-            } else {
-              LOG(ERROR) << "Receive empty dice emoji";
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected emojies_send_dice " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "emojies_send_dice_success") {
-        if (value->get_id() == telegram_api::jsonObject::ID) {
-          auto success_values = std::move(static_cast<telegram_api::jsonObject *>(value)->value_);
-          for (auto &success_value : success_values) {
-            CHECK(success_value != nullptr);
-            if (!success_value->key_.empty() && success_value->value_->get_id() == telegram_api::jsonObject::ID) {
-              int32 dice_value = -1;
-              int32 frame_start = -1;
-              for (auto &dice_key_value :
-                   static_cast<telegram_api::jsonObject *>(success_value->value_.get())->value_) {
-                if (dice_key_value->value_->get_id() != telegram_api::jsonNumber::ID) {
-                  continue;
-                }
-                auto current_value = get_json_value_int(std::move(dice_key_value->value_), Slice());
-                if (dice_key_value->key_ == "value") {
-                  dice_value = current_value;
-                }
-                if (dice_key_value->key_ == "frame_start") {
-                  frame_start = current_value;
-                }
-              }
-              if (dice_value < 0 || frame_start < 0) {
-                LOG(ERROR) << "Receive unexpected dice success value " << to_string(success_value);
-              } else {
-                dice_emoji_success_value[success_value->key_] = PSTRING() << dice_value << ':' << frame_start;
-              }
-            } else {
-              LOG(ERROR) << "Receive unexpected dice success value " << to_string(success_value);
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected emojies_send_dice_success " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "emojies_sounds") {
-        if (value->get_id() == telegram_api::jsonObject::ID) {
-          auto sounds = std::move(static_cast<telegram_api::jsonObject *>(value)->value_);
-          for (auto &sound : sounds) {
-            CHECK(sound != nullptr);
-            if (sound->value_->get_id() == telegram_api::jsonObject::ID) {
-              string id;
-              string access_hash;
-              string file_reference_base64;
-              for (auto &sound_key_value : static_cast<telegram_api::jsonObject *>(sound->value_.get())->value_) {
-                if (sound_key_value->value_->get_id() != telegram_api::jsonString::ID) {
-                  continue;
-                }
-                auto current_value = get_json_value_string(std::move(sound_key_value->value_), Slice());
-                if (sound_key_value->key_ == "id") {
-                  id = std::move(current_value);
-                } else if (sound_key_value->key_ == "access_hash") {
-                  access_hash = std::move(current_value);
-                } else if (sound_key_value->key_ == "file_reference_base64") {
-                  file_reference_base64 = std::move(current_value);
-                }
-              }
-              if (to_integer_safe<int64>(id).is_error() || to_integer_safe<int64>(access_hash).is_error() ||
-                  !is_base64url(file_reference_base64) || !is_emoji(sound->key_)) {
-                LOG(ERROR) << "Receive unexpected sound value " << to_string(sound);
-              } else {
-                emoji_sounds.push_back(sound->key_);
-                emoji_sounds.push_back(PSTRING() << id << ':' << access_hash << ':' << file_reference_base64);
-              }
-            } else {
-              LOG(ERROR) << "Receive unexpected emoji sound " << to_string(sound);
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected emojies_sounds " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "gif_search_branding") {
-        animation_search_provider = get_json_value_string(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "gif_search_emojies") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto emojis = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &emoji : emojis) {
-            auto emoji_str = get_json_value_string(std::move(emoji), key);
-            if (!emoji_str.empty() && emoji_str.find(',') == string::npos) {
-              if (!animation_search_emojis.empty()) {
-                animation_search_emojis += ',';
-              }
-              animation_search_emojis += emoji_str;
-            } else {
-              LOG(ERROR) << "Receive unexpected animation search emoji " << emoji_str;
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected gif_search_emojies " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "pending_suggestions" || key == "dismissed_suggestions") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto actions = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          auto otherwise_relogin_days = G()->get_option_integer("otherwise_relogin_days");
-          for (auto &action : actions) {
-            auto action_str = get_json_value_string(std::move(action), key);
-            if (key == "dismissed_suggestions") {
-              dismissed_suggestions.push_back(action_str);
-              continue;
-            }
-            SuggestedAction suggested_action(action_str);
-            if (!suggested_action.is_empty()) {
-              if (otherwise_relogin_days > 0 &&
-                  suggested_action == SuggestedAction{SuggestedAction::Type::SetPassword}) {
-                LOG(INFO) << "Skip SetPassword suggested action";
-              } else {
-                suggested_actions.push_back(suggested_action);
-              }
-            } else {
-              LOG(ERROR) << "Receive unsupported suggested action " << action_str;
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected pending_suggestions " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "autoarchive_setting_available") {
-        can_archive_and_mute_new_chats_from_unknown_users = get_json_value_bool(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "autologin_domains") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto domains = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &domain : domains) {
-            autologin_domains.push_back(get_json_value_string(std::move(domain), key));
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected autologin_domains " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "url_auth_domains") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto domains = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &domain : domains) {
-            url_auth_domains.push_back(get_json_value_string(std::move(domain), key));
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected url_auth_domains " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "whitelisted_domains") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto domains = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &domain : domains) {
-            whitelisted_domains.push_back(get_json_value_string(std::move(domain), key));
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected whitelisted_domains " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "round_video_encoding") {
-        if (value->get_id() == telegram_api::jsonObject::ID) {
-          auto video_note_settings = std::move(static_cast<telegram_api::jsonObject *>(value)->value_);
-          for (auto &video_note_setting : video_note_settings) {
-            CHECK(video_note_setting != nullptr);
-            if (video_note_setting->key_ != "diameter" && video_note_setting->key_ != "video_bitrate" &&
-                video_note_setting->key_ != "audio_bitrate" && video_note_setting->key_ != "max_size") {
-              continue;
-            }
-            if (video_note_setting->value_->get_id() == telegram_api::jsonNumber::ID) {
-              auto setting_value = get_json_value_int(std::move(video_note_setting->value_), Slice());
-              if (setting_value > 0) {
-                if (video_note_setting->key_ == "diameter") {
-                  G()->set_option_integer("suggested_video_note_length", setting_value);
-                }
-                if (video_note_setting->key_ == "video_bitrate") {
-                  G()->set_option_integer("suggested_video_note_video_bitrate", setting_value);
-                }
-                if (video_note_setting->key_ == "audio_bitrate") {
-                  G()->set_option_integer("suggested_video_note_audio_bitrate", setting_value);
-                }
-                if (video_note_setting->key_ == "max_size") {
-                  G()->set_option_integer("video_note_size_max", setting_value);
-                }
-              }
-            } else {
-              LOG(ERROR) << "Receive unexpected video note setting " << to_string(video_note_setting);
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected round_video_encoding " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "chat_read_mark_expire_period") {
-        chat_read_mark_expire_period = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "chat_read_mark_size_threshold") {
-        chat_read_mark_size_threshold = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "reactions_uniq_max") {
-        reactions_uniq_max = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "ringtone_duration_max") {
-        auto setting_value = get_json_value_int(std::move(key_value->value_), key);
-        G()->set_option_integer("notification_sound_duration_max", setting_value);
-        continue;
-      }
-      if (key == "ringtone_size_max") {
-        auto setting_value = get_json_value_int(std::move(key_value->value_), key);
-        G()->set_option_integer("notification_sound_size_max", setting_value);
-        continue;
-      }
-      if (key == "ringtone_saved_count_max") {
-        auto setting_value = get_json_value_int(std::move(key_value->value_), key);
-        G()->set_option_integer("notification_sound_count_max", setting_value);
-        continue;
-      }
-      if (key == "premium_promo_order") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto features = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &feature : features) {
-            auto premium_feature = get_json_value_string(std::move(feature), key);
-            if (!td::contains(premium_feature, ',')) {
-              premium_features.push_back(std::move(premium_feature));
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected premium_promo_order " << to_string(*value);
-        }
-        continue;
-      }
-      bool is_premium_limit_key = false;
-      for (auto premium_limit_key : premium_limit_keys) {
-        if (begins_with(key, premium_limit_key)) {
-          auto suffix = key.substr(premium_limit_key.size());
-          if (suffix == "_limit_default" || suffix == "_limit_premium") {
-            auto setting_value = get_json_value_int(std::move(key_value->value_), key);
-            if (setting_value > 0) {
-              G()->set_option_integer(key, setting_value);
-            } else {
-              LOG(ERROR) << "Receive invalid value " << setting_value << " for " << key;
-            }
-            is_premium_limit_key = true;
-            break;
-          }
-        }
-      }
-      if (is_premium_limit_key) {
-        continue;
-      }
-      if (key == "premium_bot_username") {
-        premium_bot_username = get_json_value_string(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "premium_invoice_slug") {
-        premium_invoice_slug = get_json_value_string(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "premium_purchase_blocked") {
-        is_premium_available = !get_json_value_bool(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "stickers_premium_by_emoji_num") {
-        stickers_premium_by_emoji_num = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "stickers_normal_by_emoji_per_premium_num") {
-        stickers_normal_by_emoji_per_premium_num = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "reactions_user_max_default" || key == "reactions_user_max_premium") {
-        auto setting_value = get_json_value_int(std::move(key_value->value_), key);
-        G()->set_option_integer(key, setting_value);
-        continue;
-      }
-      if (key == "telegram_antispam_user_id") {
-        auto setting_value = get_json_value_long(std::move(key_value->value_), key);
-        G()->set_option_integer("anti_spam_bot_user_id", setting_value);
-        continue;
-      }
-      if (key == "telegram_antispam_group_size_min") {
-        telegram_antispam_group_size_min = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "fragment_prefixes") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto prefixes = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &prefix : prefixes) {
-            auto prefix_text = get_json_value_string(std::move(prefix), key);
-            clean_phone_number(prefix_text);
-            if (!prefix_text.empty()) {
-              fragment_prefixes.push_back(prefix_text);
-            } else {
-              LOG(ERROR) << "Receive an invalid Fragment prefix";
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected fragment_prefixes " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "hidden_members_group_size_min") {
-        auto setting_value = get_json_value_int(std::move(key_value->value_), key);
-        G()->set_option_integer("hidden_members_group_size_min", setting_value);
-        continue;
-      }
-      if (key == "topics_pinned_limit") {
-        topics_pinned_limit = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "premium_gift_attach_menu_icon") {
-        premium_gift_attach_menu_icon = get_json_value_bool(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "premium_gift_text_field_icon") {
-        premium_gift_text_field_icon = get_json_value_bool(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "chatlist_update_period") {
-        dialog_filter_update_period = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "stories_all_hidden") {
-        // archive_all_stories = get_json_value_bool(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "story_viewers_expire_period") {
-        story_viewers_expire_period = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "stories_changelog_user_id") {
-        stories_changelog_user_id = get_json_value_long(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "stories_venue_search_username") {
-        G()->set_option_string("venue_search_bot_username", get_json_value_string(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stories_stealth_past_period") {
-        G()->set_option_integer("story_stealth_mode_past_period",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stories_stealth_future_period") {
-        G()->set_option_integer("story_stealth_mode_future_period",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stories_stealth_cooldown_period") {
-        G()->set_option_integer("story_stealth_mode_cooldown_period",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stories_entities") {
-        G()->set_option_boolean("need_premium_for_story_caption_entities",
-                                get_json_value_string(std::move(key_value->value_), key) == "premium");
-        continue;
-      }
-      if (key == "authorization_autoconfirm_period") {
-        G()->set_option_integer("authorization_autoconfirm_period",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "giveaway_add_peers_max") {
-        G()->set_option_integer("giveaway_additional_chat_count_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "giveaway_countries_max") {
-        G()->set_option_integer("giveaway_country_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "giveaway_boosts_per_premium") {
-        G()->set_option_integer("giveaway_boost_count_per_premium",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "giveaway_period_max") {
-        G()->set_option_integer("giveaway_duration_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "boosts_per_sent_gift") {
-        G()->set_option_integer("premium_gift_boost_count", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "quote_length_max") {
-        G()->set_option_integer("message_reply_quote_length_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "transcribe_audio_trial_weekly_number") {
-        transcribe_audio_trial_weekly_number = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "transcribe_audio_trial_duration_max") {
-        transcribe_audio_trial_duration_max = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "transcribe_audio_trial_cooldown_until") {
-        transcribe_audio_trial_cooldown_until = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "boosts_channel_level_max") {
-        G()->set_option_integer("chat_boost_level_max", max(0, get_json_value_int(std::move(key_value->value_), key)));
-        continue;
-      }
-      if (key == "reactions_in_chat_max") {
-        G()->set_option_integer("chat_available_reaction_count_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "channel_bg_icon_level_min" || key == "channel_custom_wallpaper_level_min" ||
-          key == "channel_emoji_status_level_min" || key == "channel_profile_bg_icon_level_min" ||
-          key == "channel_restrict_sponsored_level_min" || key == "channel_wallpaper_level_min" ||
-          key == "pm_read_date_expire_period" || key == "group_transcribe_level_min" ||
-          key == "group_emoji_stickers_level_min" || key == "group_profile_bg_icon_level_min" ||
-          key == "group_emoji_status_level_min" || key == "group_wallpaper_level_min" ||
-          key == "group_custom_wallpaper_level_min") {
-        G()->set_option_integer(key, get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "quick_replies_limit") {
-        G()->set_option_integer("quick_reply_shortcut_count_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "quick_reply_messages_limit") {
-        G()->set_option_integer("quick_reply_shortcut_message_count_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "intro_title_length_limit") {
-        G()->set_option_integer("business_start_page_title_length_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "intro_description_length_limit") {
-        G()->set_option_integer("business_start_page_message_length_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "business_promo_order") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto features = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &feature : features) {
-            auto business_feature = get_json_value_string(std::move(feature), key);
-            if (!td::contains(business_feature, ',')) {
-              business_features.push_back(std::move(business_feature));
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected business_promo_order " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "new_noncontact_peers_require_premium_without_ownpremium") {
-        need_premium_for_new_chat_privacy = !get_json_value_bool(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "channel_revenue_withdrawal_enabled") {
-        channel_revenue_withdrawal_enabled = get_json_value_bool(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "upload_premium_speedup_download") {
-        G()->set_option_integer("premium_download_speedup", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "upload_premium_speedup_upload") {
-        G()->set_option_integer("premium_upload_speedup", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "upload_premium_speedup_notify_period") {
-        G()->set_option_integer(key, get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "business_chat_links_limit") {
-        G()->set_option_integer("business_chat_link_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "premium_manage_subscription_url") {
-        premium_manage_subscription_url = get_json_value_string(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "stories_pinned_to_top_count_max") {
-        G()->set_option_integer("pinned_story_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "can_edit_factcheck") {
-        can_edit_fact_check = get_json_value_bool(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "factcheck_length_limit") {
-        G()->set_option_integer("fact_check_length_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_revenue_withdrawal_min") {
-        G()->set_option_integer("star_withdrawal_count_min", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stories_area_url_max") {
-        G()->set_option_integer("story_link_area_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_paid_post_amount_max") {
-        G()->set_option_integer("paid_media_message_star_count_max",
-                                clamp(get_json_value_int(std::move(key_value->value_), key), 0, 1000000));
-        continue;
-      }
-      if (key == "web_app_allowed_protocols") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          vector<string> protocol_names;
-          auto protocols = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &protocol : protocols) {
-            auto protocol_name = get_json_value_string(std::move(protocol), key);
-            if (!td::contains(protocol_name, ' ')) {
-              protocol_names.push_back(std::move(protocol_name));
-            }
-          }
-          G()->set_option_string("web_app_allowed_protocols", implode(protocol_names, ' '));
-        } else {
-          LOG(ERROR) << "Receive unexpected web_app_allowed_protocols " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "weather_search_username") {
-        G()->set_option_string("weather_bot_username", get_json_value_string(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "bot_preview_medias_max") {
-        G()->set_option_integer("bot_media_preview_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "story_weather_preload") {
-        G()->set_option_boolean("can_preload_weather", get_json_value_bool(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "ton_proxy_address") {
-        G()->set_option_string("ton_proxy_address", get_json_value_string(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_gifts_enabled") {
-        G()->set_option_boolean("can_gift_stars", get_json_value_bool(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_paid_reaction_amount_max") {
-        G()->set_option_integer("paid_reaction_star_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_subscription_amount_max") {
-        G()->set_option_integer("subscription_star_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_usd_sell_rate_x1000") {
-        G()->set_option_integer("usd_to_thousand_star_rate", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_usd_withdraw_rate_x1000") {
-        G()->set_option_integer("thousand_star_to_usd_rate", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stargifts_message_length_max") {
-        G()->set_option_integer("gift_text_length_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stargifts_convert_period_max") {
-        G()->set_option_integer("gift_sell_period", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "starref_start_param_prefixes") {
-        if (value->get_id() == telegram_api::jsonArray::ID) {
-          auto prefixes = std::move(static_cast<telegram_api::jsonArray *>(value)->value_);
-          for (auto &prefix : prefixes) {
-            auto prefix_text = get_json_value_string(std::move(prefix), key);
-            if (!prefix_text.empty() && prefix_text.find(' ') == string::npos) {
-              fragment_prefixes.push_back(prefix_text);
-            } else {
-              LOG(ERROR) << "Receive an invalid affiliate program link prefix";
-            }
-          }
-        } else {
-          LOG(ERROR) << "Receive unexpected starref_start_param_prefixes " << to_string(*value);
-        }
-        continue;
-      }
-      if (key == "video_ignore_alt_documents") {
-        G()->set_option_boolean("video_ignore_alt_documents", get_json_value_bool(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "starref_min_commission_permille") {
-        G()->set_option_integer("affiliate_program_commission_per_mille_min",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "starref_max_commission_permille") {
-        G()->set_option_integer("affiliate_program_commission_per_mille_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "bot_verification_description_length_limit") {
-        G()->set_option_integer("bot_verification_custom_description_length_max",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "ton_blockchain_explorer_url") {
-        G()->set_option_string("ton_blockchain_explorer_url", get_json_value_string(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_paid_messages_available") {
-        G()->set_option_boolean("can_enable_paid_messages", get_json_value_bool(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_paid_message_amount_max") {
-        G()->set_option_integer("paid_message_star_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stars_paid_message_commission_permille") {
-        G()->set_option_integer("paid_message_earnings_per_mille",
-                                get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "stargifts_pinned_to_top_limit") {
-        G()->set_option_integer("pinned_gift_count_max", get_json_value_int(std::move(key_value->value_), key));
-        continue;
-      }
-      if (key == "freeze_since_date") {
-        freeze_since_date = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "freeze_until_date") {
-        freeze_until_date = get_json_value_int(std::move(key_value->value_), key);
-        continue;
-      }
-      if (key == "freeze_appeal_url") {
-        freeze_appeal_url = get_json_value_string(std::move(key_value->value_), key);
-        continue;
-      }
-
-      new_values.push_back(std::move(key_value));
-    }
-  } else {
-    LOG(ERROR) << "Receive wrong app config " << to_string(config);
-  }
-  config = make_tl_object<telegram_api::jsonObject>(std::move(new_values));
-
-  send_closure(G()->link_manager(), &LinkManager::update_autologin_domains, std::move(autologin_domains),
-               std::move(url_auth_domains), std::move(whitelisted_domains));
-
-  send_closure(G()->transcription_manager(), &TranscriptionManager::on_update_trial_parameters,
-               transcribe_audio_trial_weekly_number, transcribe_audio_trial_duration_max,
-               transcribe_audio_trial_cooldown_until);
-
-  send_closure(G()->user_manager(), &UserManager::on_update_freeze_state, freeze_since_date, freeze_until_date,
-               std::move(freeze_appeal_url));
-
-  Global &options = *G();
-
-  if (ignored_restriction_reasons.empty()) {
-    options.set_option_empty("ignored_restriction_reasons");
-
-    if (options.get_option_boolean("ignore_sensitive_content_restrictions", true) ||
-        options.get_option_boolean("can_ignore_sensitive_content_restrictions", true)) {
-      get_content_settings(Auto());
-    }
-  } else {
-    options.set_option_string("ignored_restriction_reasons", ignored_restriction_reasons);
-
-    if (!options.get_option_boolean("can_ignore_sensitive_content_restrictions") ||
-        !options.get_option_boolean("ignore_sensitive_content_restrictions")) {
-      get_content_settings(Auto());
-    }
-  }
-  if (restriction_add_platforms.empty()) {
-    options.set_option_empty("restriction_add_platforms");
-  } else {
-    options.set_option_string("restriction_add_platforms", restriction_add_platforms);
-  }
-
-  if (!dice_emojis.empty()) {
-    vector<string> dice_success_values(dice_emojis.size());
-    for (auto &it : dice_emoji_success_value) {
-      auto dice_emoji_it = dice_emoji_index.find(it.first);
-      if (dice_emoji_it == dice_emoji_index.end()) {
-        LOG(ERROR) << "Can't find emoji " << it.first;
-        continue;
-      }
-      dice_success_values[dice_emoji_it->second] = it.second;
-    }
-    options.set_option_string("dice_success_values", implode(dice_success_values, ','));
-    options.set_option_string("dice_emojis", implode(dice_emojis, '\x01'));
-  }
-
-  options.set_option_string("fragment_prefixes", implode(fragment_prefixes, ','));
-
-  if (starref_start_param_prefixes.empty()) {
-    options.set_option_empty("starref_start_param_prefixes");
-  } else {
-    options.set_option_string("starref_start_param_prefixes", implode(starref_start_param_prefixes, ' '));
-  }
-
-  options.set_option_string("emoji_sounds", implode(emoji_sounds, ','));
-
-  if (animated_emoji_zoom <= 0 || animated_emoji_zoom > 2.0) {
-    options.set_option_empty("animated_emoji_zoom");
-  } else {
-    options.set_option_integer("animated_emoji_zoom", static_cast<int64>(animated_emoji_zoom * 1e9));
-  }
-  if (animation_search_provider.empty()) {
-    options.set_option_empty("animation_search_provider");
-  } else {
-    options.set_option_string("animation_search_provider", animation_search_provider);
-  }
-  if (animation_search_emojis.empty()) {
-    options.set_option_empty("animation_search_emojis");
-  } else {
-    options.set_option_string("animation_search_emojis", animation_search_emojis);
-  }
-  if (!can_archive_and_mute_new_chats_from_unknown_users) {
-    options.set_option_empty("can_archive_and_mute_new_chats_from_unknown_users");
-  } else {
-    options.set_option_boolean("can_archive_and_mute_new_chats_from_unknown_users",
-                               can_archive_and_mute_new_chats_from_unknown_users);
-  }
-  if (chat_read_mark_expire_period <= 0) {
-    options.set_option_empty("chat_read_mark_expire_period");
-  } else {
-    options.set_option_integer("chat_read_mark_expire_period", chat_read_mark_expire_period);
-  }
-  if (chat_read_mark_size_threshold <= 0) {
-    options.set_option_empty("chat_read_mark_size_threshold");
-  } else {
-    options.set_option_integer("chat_read_mark_size_threshold", chat_read_mark_size_threshold);
-  }
-  if (reactions_uniq_max <= 0 || reactions_uniq_max == 11) {
-    options.set_option_empty("reactions_uniq_max");
-  } else {
-    options.set_option_integer("reactions_uniq_max", reactions_uniq_max);
-  }
-  if (telegram_antispam_group_size_min >= 0) {
-    options.set_option_integer("aggressive_anti_spam_supergroup_member_count_min", telegram_antispam_group_size_min);
-  }
-  if (dialog_filter_update_period > 0) {
-    options.set_option_integer("chat_folder_new_chats_update_period", dialog_filter_update_period);
-  }
-  if (td::contains(dismissed_suggestions, "BIRTHDAY_CONTACTS_TODAY")) {
-    options.set_option_boolean("dismiss_birthday_contact_today", true);
-  } else {
-    options.set_option_empty("dismiss_birthday_contact_today");
-  }
-
-  if (!is_premium_available) {
-    premium_bot_username.clear();  // just in case
-    premium_invoice_slug.clear();  // just in case
-    premium_features.clear();      // just in case
-    business_features.clear();     // just in case
-    options.set_option_empty("is_premium_available");
-  } else {
-    options.set_option_boolean("is_premium_available", is_premium_available);
-  }
-  options.set_option_string("premium_features", implode(premium_features, ','));
-  options.set_option_string("business_features", implode(business_features, ','));
-  if (premium_bot_username.empty()) {
-    options.set_option_empty("premium_bot_username");
-  } else {
-    options.set_option_string("premium_bot_username", premium_bot_username);
-  }
-  if (premium_invoice_slug.empty()) {
-    options.set_option_empty("premium_invoice_slug");
-  } else {
-    options.set_option_string("premium_invoice_slug", premium_invoice_slug);
-  }
-  if (topics_pinned_limit >= 0) {
-    options.set_option_integer("pinned_forum_topic_count_max", topics_pinned_limit);
-  } else {
-    options.set_option_empty("pinned_forum_topic_count_max");
-  }
-
-  if (premium_gift_attach_menu_icon) {
-    options.set_option_boolean("gift_premium_from_attachment_menu", premium_gift_attach_menu_icon);
-  } else {
-    options.set_option_empty("gift_premium_from_attachment_menu");
-  }
-  if (premium_gift_text_field_icon) {
-    options.set_option_boolean("gift_premium_from_input_field", premium_gift_text_field_icon);
-  } else {
-    options.set_option_empty("gift_premium_from_input_field");
-  }
-  if (stories_changelog_user_id != UserManager::get_service_notifications_user_id().get()) {
-    options.set_option_integer("stories_changelog_user_id", stories_changelog_user_id);
-  } else {
-    options.set_option_empty("stories_changelog_user_id");
-  }
-  if (can_edit_fact_check) {
-    options.set_option_boolean("can_edit_fact_check", can_edit_fact_check);
-  } else {
-    options.set_option_empty("can_edit_fact_check");
-  }
-
-  if (story_viewers_expire_period >= 0) {
-    options.set_option_integer("story_viewers_expiration_delay", story_viewers_expire_period);
-  }
-
-  if (!options.get_option_boolean("need_synchronize_archive_all_stories")) {
-    // options.set_option_boolean("archive_all_stories", archive_all_stories);
-  }
-  options.set_option_empty("archive_all_stories");
-
-  options.set_option_integer("stickers_premium_by_emoji_num", stickers_premium_by_emoji_num);
-  options.set_option_integer("stickers_normal_by_emoji_per_premium_num", stickers_normal_by_emoji_per_premium_num);
-
-  options.set_option_boolean("can_withdraw_chat_revenue", channel_revenue_withdrawal_enabled);
-  options.set_option_boolean("need_premium_for_new_chat_privacy", need_premium_for_new_chat_privacy);
-
-  options.set_option_empty("default_ton_blockchain_config");
-  options.set_option_empty("default_ton_blockchain_name");
-  options.set_option_empty("story_viewers_expire_period");
-
-  if (premium_manage_subscription_url.empty()) {
-    G()->set_option_empty("premium_manage_subscription_url");
-  } else {
-    G()->set_option_string("premium_manage_subscription_url", premium_manage_subscription_url);
-  }
-
-  // do not update suggested actions while changing content settings
-  if (!is_set_content_settings_request_sent_) {
-    send_closure(G()->suggested_action_manager(), &SuggestedActionManager::update_suggested_actions,
-                 std::move(suggested_actions));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ConfigManager.h b/third-party/td/td/td/telegram/ConfigManager.h
deleted file mode 100644
index de1527a6e3..0000000000
--- a/third-party/td/td/td/telegram/ConfigManager.h
+++ /dev/null
@@ -1,140 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/DcOptions.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FloodControlStrict.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <limits>
-
-namespace td {
-
-extern int VERBOSITY_NAME(config_recoverer);
-
-using SimpleConfig = tl_object_ptr<telegram_api::help_configSimple>;
-struct SimpleConfigResult {
-  Result<SimpleConfig> r_config;
-  Result<int32> r_http_date;
-};
-
-Result<SimpleConfig> decode_config(Slice input);
-
-ActorOwn<> get_simple_config_azure(Promise<SimpleConfigResult> promise, bool prefer_ipv6, Slice domain_name,
-                                   bool is_test, int32 scheduler_id);
-
-ActorOwn<> get_simple_config_google_dns(Promise<SimpleConfigResult> promise, bool prefer_ipv6, Slice domain_name,
-                                        bool is_test, int32 scheduler_id);
-
-ActorOwn<> get_simple_config_mozilla_dns(Promise<SimpleConfigResult> promise, bool prefer_ipv6, Slice domain_name,
-                                         bool is_test, int32 scheduler_id);
-
-ActorOwn<> get_simple_config_firebase_remote_config(Promise<SimpleConfigResult> promise, bool prefer_ipv6,
-                                                    Slice domain_name, bool is_test, int32 scheduler_id);
-
-ActorOwn<> get_simple_config_firebase_realtime(Promise<SimpleConfigResult> promise, bool prefer_ipv6, Slice domain_name,
-                                               bool is_test, int32 scheduler_id);
-
-ActorOwn<> get_simple_config_firebase_firestore(Promise<SimpleConfigResult> promise, bool prefer_ipv6,
-                                                Slice domain_name, bool is_test, int32 scheduler_id);
-
-class ConfigRecoverer;
-class ConfigManager final : public NetQueryCallback {
- public:
-  explicit ConfigManager(ActorShared<> parent);
-
-  void request_config(bool reopen_sessions);
-
-  void lazy_request_config();
-
-  void reget_config(Promise<Unit> &&promise);
-
-  void get_app_config(Promise<td_api::object_ptr<td_api::JsonValue>> &&promise);
-
-  void reget_app_config(Promise<Unit> &&promise);
-
-  void get_content_settings(Promise<Unit> &&promise);
-
-  void set_content_settings(bool ignore_sensitive_content_restrictions, Promise<Unit> &&promise);
-
-  void on_dc_options_update(DcOptions dc_options);
-
- private:
-  struct AppConfig {
-    static constexpr int32 CURRENT_VERSION = 71;
-    int32 version_ = 0;
-    int32 hash_ = 0;
-    telegram_api::object_ptr<telegram_api::JSONValue> config_;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  ActorShared<> parent_;
-  int32 config_sent_cnt_{0};
-  bool reopen_sessions_after_get_config_{false};
-  ActorOwn<ConfigRecoverer> config_recoverer_;
-  int ref_cnt_{1};
-  Timestamp expire_time_;
-
-  FloodControlStrict lazy_request_flood_control_;
-
-  vector<Promise<Unit>> reget_config_queries_;
-
-  vector<Promise<td_api::object_ptr<td_api::JsonValue>>> get_app_config_queries_;
-  vector<Promise<Unit>> reget_app_config_queries_;
-
-  vector<Promise<Unit>> get_content_settings_queries_;
-  vector<Promise<Unit>> set_content_settings_queries_[2];
-  bool is_set_content_settings_request_sent_ = false;
-  bool last_set_content_settings_ = false;
-
-  AppConfig app_config_;
-
-  static constexpr uint64 REFCNT_TOKEN = std::numeric_limits<uint64>::max() - 2;
-
-  void start_up() final;
-  void hangup_shared() final;
-  void hangup() final;
-  void loop() final;
-  void try_stop();
-
-  void on_result(NetQueryPtr net_query) final;
-
-  void request_config_from_dc_impl(DcId dc_id, bool reopen_sessions);
-  void process_config(tl_object_ptr<telegram_api::config> config);
-
-  void try_request_app_config();
-
-  void process_app_config(telegram_api::object_ptr<telegram_api::JSONValue> &config);
-
-  void do_set_ignore_sensitive_content_restrictions(bool ignore_sensitive_content_restrictions);
-
-  static Timestamp load_config_expire_time();
-  static void save_config_expire(Timestamp timestamp);
-  static void save_dc_options_update(const DcOptions &dc_options);
-  static DcOptions load_dc_options_update();
-
-  ActorShared<> create_reference();
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ConnectionState.cpp b/third-party/td/td/td/telegram/ConnectionState.cpp
deleted file mode 100644
index dd968b30f3..0000000000
--- a/third-party/td/td/td/telegram/ConnectionState.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ConnectionState.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-static td_api::object_ptr<td_api::ConnectionState> get_connection_state_object(ConnectionState state) {
-  switch (state) {
-    case ConnectionState::Empty:
-      UNREACHABLE();
-      return nullptr;
-    case ConnectionState::WaitingForNetwork:
-      return td_api::make_object<td_api::connectionStateWaitingForNetwork>();
-    case ConnectionState::ConnectingToProxy:
-      return td_api::make_object<td_api::connectionStateConnectingToProxy>();
-    case ConnectionState::Connecting:
-      return td_api::make_object<td_api::connectionStateConnecting>();
-    case ConnectionState::Updating:
-      return td_api::make_object<td_api::connectionStateUpdating>();
-    case ConnectionState::Ready:
-      return td_api::make_object<td_api::connectionStateReady>();
-    default:
-      LOG(FATAL) << "State = " << static_cast<int32>(state);
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::updateConnectionState> get_update_connection_state_object(ConnectionState state) {
-  return td_api::make_object<td_api::updateConnectionState>(get_connection_state_object(state));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ConnectionState.h b/third-party/td/td/td/telegram/ConnectionState.h
deleted file mode 100644
index 8d3a7069fe..0000000000
--- a/third-party/td/td/td/telegram/ConnectionState.h
+++ /dev/null
@@ -1,19 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-enum class ConnectionState : int32 { WaitingForNetwork, ConnectingToProxy, Connecting, Updating, Ready, Empty };
-
-td_api::object_ptr<td_api::updateConnectionState> get_update_connection_state_object(ConnectionState state);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ConnectionStateManager.cpp b/third-party/td/td/td/telegram/ConnectionStateManager.cpp
deleted file mode 100644
index edeec40118..0000000000
--- a/third-party/td/td/td/telegram/ConnectionStateManager.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ConnectionStateManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-ConnectionStateManager::ConnectionStateManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void ConnectionStateManager::tear_down() {
-  parent_.reset();
-}
-
-void ConnectionStateManager::start_up() {
-  class StateCallback final : public StateManager::Callback {
-   public:
-    explicit StateCallback(ActorId<ConnectionStateManager> parent) : parent_(std::move(parent)) {
-    }
-    bool on_state(ConnectionState state) final {
-      send_closure(parent_, &ConnectionStateManager::on_connection_state_changed, state);
-      return parent_.is_alive();
-    }
-
-   private:
-    ActorId<ConnectionStateManager> parent_;
-  };
-  send_closure(td_->state_manager_, &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-}
-
-void ConnectionStateManager::on_connection_state_changed(ConnectionState new_state) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (new_state == connection_state_) {
-    LOG(ERROR) << "State manager sent update about unchanged state " << static_cast<int32>(new_state);
-    return;
-  }
-  connection_state_ = new_state;
-
-  send_closure(G()->td(), &Td::send_update, get_update_connection_state_object(connection_state_));
-}
-
-void ConnectionStateManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (connection_state_ == ConnectionState::Empty) {
-    return;
-  }
-
-  updates.push_back(get_update_connection_state_object(connection_state_));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ConnectionStateManager.h b/third-party/td/td/td/telegram/ConnectionStateManager.h
deleted file mode 100644
index 17b9bf94f1..0000000000
--- a/third-party/td/td/td/telegram/ConnectionStateManager.h
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ConnectionState.h"
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Td;
-
-class ConnectionStateManager final : public Actor {
- public:
-  ConnectionStateManager(Td *td, ActorShared<> parent);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  void tear_down() final;
-
-  void start_up() final;
-
-  void on_connection_state_changed(ConnectionState new_state);
-
-  ConnectionState connection_state_ = ConnectionState::Empty;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Contact.cpp b/third-party/td/td/td/telegram/Contact.cpp
deleted file mode 100644
index f99099c2ec..0000000000
--- a/third-party/td/td/td/telegram/Contact.cpp
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Contact.h"
-
-#include "td/telegram/misc.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/common.h"
-
-#include <tuple>
-
-namespace td {
-
-Contact::Contact(string phone_number, string first_name, string last_name, string vcard, UserId user_id)
-    : phone_number_(std::move(phone_number))
-    , first_name_(std::move(first_name))
-    , last_name_(std::move(last_name))
-    , vcard_(std::move(vcard))
-    , user_id_(user_id) {
-  if (!user_id_.is_valid()) {
-    user_id_ = UserId();
-  }
-}
-
-void Contact::set_user_id(UserId user_id) {
-  user_id_ = user_id;
-}
-
-UserId Contact::get_user_id() const {
-  return user_id_;
-}
-
-const string &Contact::get_phone_number() const {
-  return phone_number_;
-}
-
-const string &Contact::get_first_name() const {
-  return first_name_;
-}
-
-const string &Contact::get_last_name() const {
-  return last_name_;
-}
-
-tl_object_ptr<td_api::contact> Contact::get_contact_object(Td *td) const {
-  return make_tl_object<td_api::contact>(phone_number_, first_name_, last_name_, vcard_,
-                                         td->user_manager_->get_user_id_object(user_id_, "contact"));
-}
-
-tl_object_ptr<telegram_api::inputMediaContact> Contact::get_input_media_contact() const {
-  return make_tl_object<telegram_api::inputMediaContact>(phone_number_, first_name_, last_name_, vcard_);
-}
-
-SecretInputMedia Contact::get_secret_input_media_contact() const {
-  return SecretInputMedia{nullptr, make_tl_object<secret_api::decryptedMessageMediaContact>(
-                                       phone_number_, first_name_, last_name_, static_cast<int32>(0))};
-}
-
-tl_object_ptr<telegram_api::inputPhoneContact> Contact::get_input_phone_contact(int64 client_id) const {
-  return make_tl_object<telegram_api::inputPhoneContact>(client_id, phone_number_, first_name_, last_name_);
-}
-
-tl_object_ptr<telegram_api::inputBotInlineMessageMediaContact> Contact::get_input_bot_inline_message_media_contact(
-    tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup) const {
-  int32 flags = 0;
-  if (reply_markup != nullptr) {
-    flags |= telegram_api::inputBotInlineMessageMediaContact::REPLY_MARKUP_MASK;
-  }
-  return make_tl_object<telegram_api::inputBotInlineMessageMediaContact>(flags, phone_number_, first_name_, last_name_,
-                                                                         vcard_, std::move(reply_markup));
-}
-
-bool operator==(const Contact &lhs, const Contact &rhs) {
-  return std::tie(lhs.phone_number_, lhs.first_name_, lhs.last_name_, lhs.vcard_, lhs.user_id_) ==
-         std::tie(rhs.phone_number_, rhs.first_name_, rhs.last_name_, rhs.vcard_, rhs.user_id_);
-}
-
-bool operator!=(const Contact &lhs, const Contact &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Contact &contact) {
-  return string_builder << "Contact[phone_number = " << contact.phone_number_
-                        << ", first_name = " << contact.first_name_ << ", last_name = " << contact.last_name_
-                        << ", vCard size = " << contact.vcard_.size() << contact.user_id_ << "]";
-}
-
-Result<Contact> get_contact(Td *td, td_api::object_ptr<td_api::contact> &&contact) {
-  if (contact == nullptr) {
-    return Status::Error(400, "Contact must be non-empty");
-  }
-
-  if (!clean_input_string(contact->phone_number_)) {
-    return Status::Error(400, "Phone number must be encoded in UTF-8");
-  }
-  if (!clean_input_string(contact->first_name_)) {
-    return Status::Error(400, "First name must be encoded in UTF-8");
-  }
-  if (!clean_input_string(contact->last_name_)) {
-    return Status::Error(400, "Last name must be encoded in UTF-8");
-  }
-  if (!clean_input_string(contact->vcard_)) {
-    return Status::Error(400, "vCard must be encoded in UTF-8");
-  }
-  UserId user_id(contact->user_id_);
-  if (user_id != UserId() && !td->user_manager_->have_user_force(user_id, "get_contact")) {
-    return Status::Error(400, "User not found");
-  }
-
-  return Contact(std::move(contact->phone_number_), std::move(contact->first_name_), std::move(contact->last_name_),
-                 std::move(contact->vcard_), user_id);
-}
-
-Result<Contact> process_input_message_contact(Td *td,
-                                              td_api::object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  CHECK(input_message_content != nullptr);
-  CHECK(input_message_content->get_id() == td_api::inputMessageContact::ID);
-  return get_contact(td, std::move(static_cast<td_api::inputMessageContact *>(input_message_content.get())->contact_));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Contact.h b/third-party/td/td/td/telegram/Contact.h
deleted file mode 100644
index 12ca1336ba..0000000000
--- a/third-party/td/td/td/telegram/Contact.h
+++ /dev/null
@@ -1,151 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <tuple>
-
-namespace td {
-
-class Td;
-
-class Contact {
-  string phone_number_;
-  string first_name_;
-  string last_name_;
-  string vcard_;
-  UserId user_id_;
-
-  friend bool operator==(const Contact &lhs, const Contact &rhs);
-  friend bool operator!=(const Contact &lhs, const Contact &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const Contact &contact);
-
-  friend struct ContactEqual;
-  friend struct ContactHash;
-
- public:
-  Contact() = default;
-
-  Contact(string phone_number, string first_name, string last_name, string vcard, UserId user_id);
-
-  void set_user_id(UserId user_id);
-
-  UserId get_user_id() const;
-
-  const string &get_phone_number() const;
-
-  const string &get_first_name() const;
-
-  const string &get_last_name() const;
-
-  tl_object_ptr<td_api::contact> get_contact_object(Td *td) const;
-
-  tl_object_ptr<telegram_api::inputMediaContact> get_input_media_contact() const;
-
-  SecretInputMedia get_secret_input_media_contact() const;
-
-  tl_object_ptr<telegram_api::inputPhoneContact> get_input_phone_contact(int64 client_id) const;
-
-  tl_object_ptr<telegram_api::inputBotInlineMessageMediaContact> get_input_bot_inline_message_media_contact(
-      tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    bool has_first_name = !first_name_.empty();
-    bool has_last_name = !last_name_.empty();
-    bool has_vcard = !vcard_.empty();
-    bool has_user_id = user_id_.is_valid();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_first_name);
-    STORE_FLAG(has_last_name);
-    STORE_FLAG(has_vcard);
-    STORE_FLAG(has_user_id);
-    END_STORE_FLAGS();
-    store(phone_number_, storer);
-    if (has_first_name) {
-      store(first_name_, storer);
-    }
-    if (has_last_name) {
-      store(last_name_, storer);
-    }
-    if (has_vcard) {
-      store(vcard_, storer);
-    }
-    if (has_user_id) {
-      store(user_id_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    bool has_first_name = true;
-    bool has_last_name = true;
-    bool has_vcard = false;
-    bool has_user_id = true;
-    if (parser.version() >= static_cast<int32>(Version::AddContactVcard)) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_first_name);
-      PARSE_FLAG(has_last_name);
-      PARSE_FLAG(has_vcard);
-      PARSE_FLAG(has_user_id);
-      END_PARSE_FLAGS();
-    }
-    parse(phone_number_, parser);
-    if (has_first_name) {
-      parse(first_name_, parser);
-    }
-    if (has_last_name) {
-      parse(last_name_, parser);
-    }
-    if (has_vcard) {
-      parse(vcard_, parser);
-    }
-    if (has_user_id) {
-      parse(user_id_, parser);
-    }
-  }
-};
-
-bool operator==(const Contact &lhs, const Contact &rhs);
-bool operator!=(const Contact &lhs, const Contact &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Contact &contact);
-
-struct ContactEqual {
-  bool operator()(const Contact &lhs, const Contact &rhs) const {
-    return std::tie(lhs.phone_number_, lhs.first_name_, lhs.last_name_) ==
-           std::tie(rhs.phone_number_, rhs.first_name_, rhs.last_name_);
-  }
-};
-
-struct ContactHash {
-  uint32 operator()(const Contact &contact) const {
-    return combine_hashes(combine_hashes(Hash<string>()(contact.phone_number_), Hash<string>()(contact.first_name_)),
-                          Hash<string>()(contact.last_name_));
-  }
-};
-
-Result<Contact> get_contact(Td *td, td_api::object_ptr<td_api::contact> &&contact) TD_WARN_UNUSED_RESULT;
-
-Result<Contact> process_input_message_contact(
-    Td *td, td_api::object_ptr<td_api::InputMessageContent> &&input_message_content) TD_WARN_UNUSED_RESULT;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CountryInfoManager.cpp b/third-party/td/td/td/telegram/CountryInfoManager.cpp
deleted file mode 100644
index a784770c0e..0000000000
--- a/third-party/td/td/td/telegram/CountryInfoManager.cpp
+++ /dev/null
@@ -1,613 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/CountryInfoManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LanguagePackManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/Gzip.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-class GetNearestDcQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit GetNearestDcQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create_unauth(telegram_api::help_getNearestDc()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getNearestDc>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    promise_.set_value(std::move(result->country_));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status) && status.message() != "BOT_METHOD_INVALID") {
-      LOG(ERROR) << "GetNearestDc returned " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetCountriesListQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::help_CountriesList>> promise_;
-
- public:
-  explicit GetCountriesListQuery(Promise<tl_object_ptr<telegram_api::help_CountriesList>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &language_code, int32 hash) {
-    send_query(G()->net_query_creator().create_unauth(telegram_api::help_getCountriesList(language_code, hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    // LOG(ERROR) << base64url_encode(gzencode(packet, 0.9));
-    auto result_ptr = fetch_result<telegram_api::help_getCountriesList>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "GetCountriesList returned " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-struct CountryInfoManager::CallingCodeInfo {
-  string calling_code;
-  vector<string> prefixes;
-  vector<string> patterns;
-};
-
-struct CountryInfoManager::CountryInfo {
-  string country_code;
-  string default_name;
-  string name;
-  vector<CallingCodeInfo> calling_codes;
-  bool is_hidden = false;
-
-  td_api::object_ptr<td_api::countryInfo> get_country_info_object() const {
-    return td_api::make_object<td_api::countryInfo>(
-        country_code, name.empty() ? default_name : name, default_name, is_hidden,
-        transform(calling_codes, [](const CallingCodeInfo &info) { return info.calling_code; }));
-  }
-};
-
-struct CountryInfoManager::CountryList {
-  vector<CountryInfo> countries;
-  int32 hash = 0;
-  double next_reload_time = 0.0;
-
-  td_api::object_ptr<td_api::countries> get_countries_object() const {
-    return td_api::make_object<td_api::countries>(
-        transform(countries, [](const CountryInfo &info) { return info.get_country_info_object(); }));
-  }
-};
-
-CountryInfoManager::CountryInfoManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  on_update_fragment_prefixes();
-}
-
-CountryInfoManager::~CountryInfoManager() = default;
-
-void CountryInfoManager::start_up() {
-  std::lock_guard<std::mutex> country_lock(country_mutex_);
-  manager_count_++;
-}
-
-void CountryInfoManager::tear_down() {
-  parent_.reset();
-
-  std::lock_guard<std::mutex> country_lock(country_mutex_);
-  manager_count_--;
-  if (manager_count_ == 0 && !countries_.empty()) {
-    LOG(INFO) << "Clear country info";
-    countries_.clear();
-  }
-}
-
-bool CountryInfoManager::is_fragment_phone_number(string phone_number) {
-  if (phone_number.empty()) {
-    return false;
-  }
-  if (fragment_prefixes_.empty()) {
-    fragment_prefixes_str_ = "888";
-    fragment_prefixes_.push_back(fragment_prefixes_str_);
-  }
-  clean_phone_number(phone_number);
-  for (auto &prefix : fragment_prefixes_) {
-    if (begins_with(phone_number, prefix)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-void CountryInfoManager::on_update_fragment_prefixes() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (!td_->option_manager_->have_option("fragment_prefixes")) {
-    return;
-  }
-
-  auto fragment_prefixes_str = td_->option_manager_->get_option_string("fragment_prefixes", "888");
-  std::lock_guard<std::mutex> country_lock(country_mutex_);
-  if (fragment_prefixes_str == fragment_prefixes_str_) {
-    return;
-  }
-  fragment_prefixes_str_ = std::move(fragment_prefixes_str);
-  fragment_prefixes_ = full_split(fragment_prefixes_str_, ',');
-}
-
-string CountryInfoManager::get_main_language_code() {
-  return to_lower(td_->language_pack_manager_.get_actor_unsafe()->get_main_language_code());
-}
-
-void CountryInfoManager::get_countries(Promise<td_api::object_ptr<td_api::countries>> &&promise) {
-  do_get_countries(get_main_language_code(), false, std::move(promise));
-}
-
-void CountryInfoManager::do_get_countries(string language_code, bool is_recursive,
-                                          Promise<td_api::object_ptr<td_api::countries>> &&promise) {
-  if (is_recursive) {
-    auto main_language_code = get_main_language_code();
-    if (language_code != main_language_code) {
-      language_code = std::move(main_language_code);
-      is_recursive = false;
-    }
-  }
-
-  {
-    std::lock_guard<std::mutex> country_lock(country_mutex_);
-    auto list = get_country_list(this, language_code);
-    if (list != nullptr) {
-      return promise.set_value(list->get_countries_object());
-    }
-  }
-
-  if (is_recursive) {
-    return promise.set_error(Status::Error(500, "Requested data is inaccessible"));
-  }
-  if (language_code.empty()) {
-    return promise.set_error(Status::Error(400, "Invalid language code specified"));
-  }
-  load_country_list(language_code, 0,
-                    PromiseCreator::lambda([actor_id = actor_id(this), language_code,
-                                            promise = std::move(promise)](Result<Unit> &&result) mutable {
-                      if (result.is_error()) {
-                        return promise.set_error(result.move_as_error());
-                      }
-                      send_closure(actor_id, &CountryInfoManager::do_get_countries, std::move(language_code), true,
-                                   std::move(promise));
-                    }));
-}
-
-void CountryInfoManager::get_phone_number_info(string phone_number_prefix,
-                                               Promise<td_api::object_ptr<td_api::phoneNumberInfo>> &&promise) {
-  clean_phone_number(phone_number_prefix);
-  if (phone_number_prefix.empty()) {
-    return promise.set_value(td_api::make_object<td_api::phoneNumberInfo>(nullptr, string(), string(), false));
-  }
-  do_get_phone_number_info(std::move(phone_number_prefix), get_main_language_code(), false, std::move(promise));
-}
-
-void CountryInfoManager::do_get_phone_number_info(string phone_number_prefix, string language_code, bool is_recursive,
-                                                  Promise<td_api::object_ptr<td_api::phoneNumberInfo>> &&promise) {
-  if (is_recursive) {
-    auto main_language_code = get_main_language_code();
-    if (language_code != main_language_code) {
-      language_code = std::move(main_language_code);
-      is_recursive = false;
-    }
-  }
-  {
-    std::lock_guard<std::mutex> country_lock(country_mutex_);
-    auto list = get_country_list(this, language_code);
-    if (list != nullptr) {
-      return promise.set_value(get_phone_number_info_object(list, phone_number_prefix));
-    }
-  }
-
-  if (is_recursive) {
-    return promise.set_error(Status::Error(500, "Requested data is inaccessible"));
-  }
-  if (language_code.empty()) {
-    return promise.set_error(Status::Error(400, "Invalid language code specified"));
-  }
-  load_country_list(language_code, 0,
-                    PromiseCreator::lambda([actor_id = actor_id(this), phone_number_prefix, language_code,
-                                            promise = std::move(promise)](Result<Unit> &&result) mutable {
-                      if (result.is_error()) {
-                        return promise.set_error(result.move_as_error());
-                      }
-                      send_closure(actor_id, &CountryInfoManager::do_get_phone_number_info,
-                                   std::move(phone_number_prefix), std::move(language_code), true, std::move(promise));
-                    }));
-}
-
-td_api::object_ptr<td_api::phoneNumberInfo> CountryInfoManager::get_phone_number_info_sync(const string &language_code,
-                                                                                           string phone_number_prefix) {
-  clean_phone_number(phone_number_prefix);
-  if (phone_number_prefix.empty()) {
-    return td_api::make_object<td_api::phoneNumberInfo>(nullptr, string(), string(), false);
-  }
-
-  std::lock_guard<std::mutex> country_lock(country_mutex_);
-  auto list = get_country_list(nullptr, language_code);
-  if (list == nullptr) {
-    list = get_country_list(nullptr, "en");
-  }
-
-  return get_phone_number_info_object(list, phone_number_prefix);
-}
-
-td_api::object_ptr<td_api::phoneNumberInfo> CountryInfoManager::get_phone_number_info_object(const CountryList *list,
-                                                                                             Slice phone_number) {
-  CHECK(list != nullptr);
-  const CountryInfo *best_country = nullptr;
-  const CallingCodeInfo *best_calling_code = nullptr;
-  size_t best_length = 0;
-  bool is_prefix = false;  // is phone number a prefix of a valid country_code + prefix
-  bool is_anonymous = is_fragment_phone_number(phone_number.str());
-  for (auto &country : list->countries) {
-    for (auto &calling_code : country.calling_codes) {
-      if (begins_with(phone_number, calling_code.calling_code)) {
-        auto calling_code_size = calling_code.calling_code.size();
-        for (auto &prefix : calling_code.prefixes) {
-          if (begins_with(prefix, phone_number.substr(calling_code_size))) {
-            is_prefix = true;
-          }
-          if (calling_code_size + prefix.size() > best_length &&
-              begins_with(phone_number.substr(calling_code_size), prefix)) {
-            best_country = &country;
-            best_calling_code = &calling_code;
-            best_length = calling_code_size + prefix.size();
-          }
-        }
-      }
-      if (begins_with(calling_code.calling_code, phone_number)) {
-        is_prefix = true;
-      }
-    }
-  }
-  if (best_country == nullptr) {
-    return td_api::make_object<td_api::phoneNumberInfo>(nullptr, is_prefix ? phone_number.str() : string(),
-                                                        is_prefix ? string() : phone_number.str(), is_anonymous);
-  }
-
-  Slice formatted_part = phone_number.substr(best_calling_code->calling_code.size());
-  string formatted_phone_number;
-  size_t max_matched_digits = 0;
-  for (auto &pattern : best_calling_code->patterns) {
-    string result;
-    size_t current_pattern_pos = 0;
-    bool is_failed_match = false;
-    size_t matched_digits = 0;
-    for (auto &c : formatted_part) {
-      while (current_pattern_pos < pattern.size() && pattern[current_pattern_pos] != 'X' &&
-             !is_digit(pattern[current_pattern_pos])) {
-        result += pattern[current_pattern_pos++];
-      }
-      if (current_pattern_pos == pattern.size()) {
-        // result += ' ';
-      }
-      if (current_pattern_pos >= pattern.size() || pattern[current_pattern_pos] == 'X') {
-        result += c;
-        current_pattern_pos++;
-      } else {
-        CHECK(is_digit(pattern[current_pattern_pos]));
-        if (c == pattern[current_pattern_pos]) {
-          matched_digits++;
-          result += c;
-          current_pattern_pos++;
-        } else {
-          is_failed_match = true;
-          break;
-        }
-      }
-    }
-    for (size_t i = current_pattern_pos; i < pattern.size(); i++) {
-      if (is_digit(pattern[i])) {
-        is_failed_match = true;
-      }
-    }
-    if (!is_failed_match && matched_digits >= max_matched_digits) {
-      max_matched_digits = matched_digits;
-      while (current_pattern_pos < pattern.size()) {
-        if (pattern[current_pattern_pos] == 'X') {
-          result.push_back('-');
-        } else {
-          CHECK(!is_digit(pattern[current_pattern_pos]));
-          result.push_back(' ');
-        }
-        current_pattern_pos++;
-      }
-      formatted_phone_number = std::move(result);
-    }
-  }
-
-  return td_api::make_object<td_api::phoneNumberInfo>(
-      best_country->get_country_info_object(), best_calling_code->calling_code,
-      formatted_phone_number.empty() ? formatted_part.str() : formatted_phone_number, is_anonymous);
-}
-
-void CountryInfoManager::get_current_country_code(Promise<string> &&promise) {
-  td_->create_handler<GetNearestDcQuery>(std::move(promise))->send();
-}
-
-void CountryInfoManager::load_country_list(string language_code, int32 hash, Promise<Unit> &&promise) {
-  auto &queries = pending_load_country_queries_[language_code];
-  if (!promise && !queries.empty()) {
-    return;
-  }
-  queries.push_back(std::move(promise));
-  if (queries.size() == 1) {
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), language_code](Result<tl_object_ptr<telegram_api::help_CountriesList>> &&result) {
-          send_closure(actor_id, &CountryInfoManager::on_get_country_list, language_code, std::move(result));
-        });
-    td_->create_handler<GetCountriesListQuery>(std::move(query_promise))->send(language_code, hash);
-  }
-}
-
-void CountryInfoManager::on_get_country_list(const string &language_code,
-                                             Result<tl_object_ptr<telegram_api::help_CountriesList>> r_country_list) {
-  auto query_it = pending_load_country_queries_.find(language_code);
-  CHECK(query_it != pending_load_country_queries_.end());
-  auto promises = std::move(query_it->second);
-  CHECK(!promises.empty());
-  pending_load_country_queries_.erase(query_it);
-
-  if (r_country_list.is_error()) {
-    {
-      std::lock_guard<std::mutex> country_lock(country_mutex_);
-      auto it = countries_.find(language_code);
-      if (it != countries_.end()) {
-        // don't try to reload countries more often than once in 1-2 minutes
-        it->second->next_reload_time = max(Time::now() + Random::fast(60, 120), it->second->next_reload_time);
-
-        // if we have data for the language, then we don't need to fail promises
-        set_promises(promises);
-        return;
-      }
-    }
-    fail_promises(promises, r_country_list.move_as_error());
-    return;
-  }
-
-  {
-    std::lock_guard<std::mutex> country_lock(country_mutex_);
-    on_get_country_list_impl(language_code, r_country_list.move_as_ok());
-  }
-
-  set_promises(promises);
-}
-
-void CountryInfoManager::on_get_country_list_impl(const string &language_code,
-                                                  tl_object_ptr<telegram_api::help_CountriesList> country_list) {
-  CHECK(country_list != nullptr);
-  LOG(DEBUG) << "Receive " << to_string(country_list);
-  auto &countries = countries_[language_code];
-  switch (country_list->get_id()) {
-    case telegram_api::help_countriesListNotModified::ID:
-      if (countries == nullptr) {
-        LOG(ERROR) << "Receive countriesListNotModified for unknown list with language code " << language_code;
-        countries_.erase(language_code);
-      } else {
-        LOG(INFO) << "List of countries with language code " << language_code << " is not modified";
-        countries->next_reload_time = Time::now() + Random::fast(86400, 2 * 86400);
-      }
-      break;
-    case telegram_api::help_countriesList::ID: {
-      auto list = move_tl_object_as<telegram_api::help_countriesList>(country_list);
-      if (countries == nullptr) {
-        countries = make_unique<CountryList>();
-      } else {
-        countries->countries.clear();
-      }
-      for (auto &c : list->countries_) {
-        CountryInfo info;
-        info.country_code = std::move(c->iso2_);
-        info.default_name = std::move(c->default_name_);
-        info.name = std::move(c->name_);
-        info.is_hidden = c->hidden_;
-        for (auto &code : c->country_codes_) {
-          auto r_calling_code = to_integer_safe<int32>(code->country_code_);
-          if (r_calling_code.is_error() || r_calling_code.ok() <= 0) {
-            LOG(ERROR) << "Receive invalid calling code " << code->country_code_ << " for country "
-                       << info.country_code;
-          } else {
-            CallingCodeInfo calling_code_info;
-            calling_code_info.calling_code = std::move(code->country_code_);
-            calling_code_info.prefixes = std::move(code->prefixes_);
-            if (calling_code_info.prefixes.empty()) {
-              calling_code_info.prefixes.resize(1);
-            }
-            calling_code_info.patterns = std::move(code->patterns_);
-            info.calling_codes.push_back(std::move(calling_code_info));
-          }
-        }
-        if (info.calling_codes.empty()) {
-          LOG(ERROR) << "Receive empty list of calling codes for " << info.country_code;
-          continue;
-        }
-
-        countries->countries.push_back(std::move(info));
-      }
-      countries->hash = list->hash_;
-      countries->next_reload_time = Time::now() + Random::fast(86400, 2 * 86400);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-const CountryInfoManager::CountryList *CountryInfoManager::get_country_list(CountryInfoManager *manager,
-                                                                            const string &language_code) {
-  auto it = countries_.find(language_code);
-  if (it == countries_.end()) {
-    if (language_code == "en") {
-      static const BufferSlice en = gzdecode(
-          base64url_decode(
-              "eJyNW81y40hyrib13-qe6d3ZWR8cE4xwxHod4dkg8UfgyH9RJCg2AervViRryBqBgAYEpKVeYG8--AH2sgfHHnyzn6Dtky9-Ar-"
-              "AD34FJ0hRAIlkoSO6pzVUZVVWVuaXX2YV_xz-959-8x___rf_Swj5u3_60xf4h-QqdXJccSee79Pod-_gs__7z3w1B__m5bK2-"
-              "ezk9raw-rMl2yDfDV0esEmh4tNRoTHnPg3YAn6XmssolzafvV9NtPp7G8_VJO8rP01n1OWLgLq78jlDJgn5twli-"
-              "Rb5VHEDPg1p4XeFKvVH4YSm9TgoSZqe0O9ko8jWvtrkpOJOQ-"
-              "44FNlLNIeSOUcX7OqMYDuIXVVVbAsTZP05Q2XLyuazs1g2se4VOQLdPdA8JSspitiGA3Ja8acMzOju2G71e1VJrGORj5U58_"
-              "mYugWLzr30egclTc-2kw17DReBn95rTonP_Gwju7XXIegbyVKHI2ed00oJn1lJ79j5hhxW_HCEyOYloyzW-56cVV6YP6L8Z-oi_"
-              "m4owjOuVsh3VW8BRwzuesH8Fzb1nlZmT88l62XhmVer5CTyeDrxsNgDf1W0rHOo1slZlbpTh07YYpbWQdeLYh0a5LjKnCkP56lzkKW3-"
-              "c5vN0CygyXVJjmvhv4DmKDQpAsPs4Mkads2Xf-J52iBHUJnSn2-a0eyjjsjHnsB-"
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-              "8fnuQI9PIc_IfikGqV4D29un5D9TH6oei7lPvvHgsXdoNCACKYBDxcQCBYd0fS5qUbi3AbkqOrTF-"
-              "6k411V3z77sIGL1NlZq3Onc7rA4kTKtKEN68_CAI35sio-"
-              "vxvwTy9YPFM8ziUtI87vVjEWHR2SF8Q5pXoPejOHvzDEvsXS27hahRzVQL_J9jnk4d93pbXOv49klKKcV_"
-              "VyvqwX87qk5iVZA98v5rWiAv4j5ctlPS_Bz4pcgvm1fLlo5I0ifK5LURxDLjLykm7kZUXOy5qaV0oajC3n1ZKRVxU9r5XkvKbA_"
-              "EU1rxfLIBuN0WEM_IV11JKSV8swVi_ldZDRyzAPrKPJ8HNsx_NEnts6x1qdfKp5kCgLv6-z-R8KA_b4h3_"
-              "AzkSRhXatNcl3NciYkIMKlZ_W6TCaCz1fWYxftRY5f9XpVR1MH0mszwV5bz3zAFKTQ91JOqcmcyIm3yYfa1_-LWCFyd-"
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-              "qo2mDOH8eakk78RKmis2auS4MQ6B7voI_"
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-              "dkQ3tEEvtvk7m4-Ies41eNxl-SgyX9GY0QrG0KfaHbIt03qPESLiHKGWizGMiY5M_nY91y24Ahv1IyY1zSvyIcm9T0WT46cwRvOHe_"
-              "asAm8s-lTd5zGx5wsJ3JEYctpI_l3K3k76k947nLuAdPthfMR8zEddH2lQ_Tzob72ARQXWhVy2KIjD60jlG0O_qpMLFslH1_"
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-              "m7EtyZtOf-Sv7Sp-DIe5J2R1ybHsPDNhBGuuNmBvYUJPYfO75P3aBxzAkLyTGmuQ8Opvo2w97OCHolfTRdC_"
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-              "hU5t8Glq7U6H3S8XMuQADrjkLIGfvxkROT3yP6XoI46gb0gDBsAT3uGmSb26o4_AoaTTDIHTTd3SaHt8R3UTv9VZfi8JiclVDR5_"
-              "lblvkh5YD0e8UTG_EHQapOQBOzAP4aQloOU_L64l1bjvkqOMtvCfsXkDfm8vXa1-T79tuwHx3VXiACj0WPHuQGNOcVNelxM9xf-"
-              "WuQQ7v2JxhPNzQyvswZbX-HdTtdz-m6vbV7xQpvv9T1jXQ25r3Ub2y4lPrF_"
-              "cIHuWkMhFiwr1Jju73va2Ke7G47A05uefzER0945xXQ994_M8_z__r_wF2XX6H")
-              .ok());
-      TlBufferParser parser(&en);
-      auto result = telegram_api::help_getCountriesList::fetch_result(parser);
-      parser.fetch_end();
-      CHECK(parser.get_error() == nullptr);
-      on_get_country_list_impl(language_code, std::move(result));
-
-      it = countries_.find(language_code);
-      CHECK(it != countries_.end());
-      auto *country = it->second.get();
-      if (manager != nullptr) {
-        manager->load_country_list(language_code, country->hash, Auto());
-      }
-      return country;
-    }
-    return nullptr;
-  }
-
-  auto *country = it->second.get();
-  CHECK(country != nullptr);
-  if (manager != nullptr && country->next_reload_time < Time::now()) {
-    manager->load_country_list(language_code, country->hash, Auto());
-  }
-
-  return country;
-}
-
-string CountryInfoManager::get_country_flag_emoji(const string &country_code) {
-  if (country_code.size() != 2 || !is_alpha(country_code[0]) || !is_alpha(country_code[1])) {
-    return string();
-  }
-  char first = to_upper(country_code[0]);
-  char second = to_upper(country_code[1]);
-  if (first == 'Y' && second == 'L') {
-    return string();
-  }
-  if (first == 'F' && second == 'T') {
-    return "\xF0\x9F\x8F\xB4\xE2\x80\x8D\xE2\x98\xA0\xEF\xB8\x8F";  // pirate flag
-  }
-  if (first == 'X' && second == 'G') {
-    return "\xF0\x9F\x9B\xB0";  // satellite
-  }
-  if (first == 'X' && second == 'V') {
-    return "\xF0\x9F\x8C\x8D";  // globe showing Europe-Africa
-  }
-  string result;
-  result.reserve(8);
-  append_utf8_character(result, 0x1F1A5 + first);
-  append_utf8_character(result, 0x1F1A5 + second);
-  CHECK(result.size() == 8);
-  return result;
-}
-
-int32 CountryInfoManager::manager_count_ = 0;
-std::mutex CountryInfoManager::country_mutex_;
-FlatHashMap<string, unique_ptr<CountryInfoManager::CountryList>> CountryInfoManager::countries_;
-string CountryInfoManager::fragment_prefixes_str_;
-vector<string> CountryInfoManager::fragment_prefixes_;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CountryInfoManager.h b/third-party/td/td/td/telegram/CountryInfoManager.h
deleted file mode 100644
index 13d8fea7ab..0000000000
--- a/third-party/td/td/td/telegram/CountryInfoManager.h
+++ /dev/null
@@ -1,96 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <mutex>
-
-namespace td {
-
-class Td;
-
-class CountryInfoManager final : public Actor {
- public:
-  CountryInfoManager(Td *td, ActorShared<> parent);
-
-  void get_countries(Promise<td_api::object_ptr<td_api::countries>> &&promise);
-
-  void get_current_country_code(Promise<string> &&promise);
-
-  void get_phone_number_info(string phone_number_prefix,
-                             Promise<td_api::object_ptr<td_api::phoneNumberInfo>> &&promise);
-
-  static td_api::object_ptr<td_api::phoneNumberInfo> get_phone_number_info_sync(const string &language_code,
-                                                                                string phone_number_prefix);
-
-  static string get_country_flag_emoji(const string &country_code);
-
-  void on_update_fragment_prefixes();
-
-  CountryInfoManager(const CountryInfoManager &) = delete;
-  CountryInfoManager &operator=(const CountryInfoManager &) = delete;
-  CountryInfoManager(CountryInfoManager &&) = delete;
-  CountryInfoManager &operator=(CountryInfoManager &&) = delete;
-  ~CountryInfoManager() final;
-
- private:
-  void start_up() final;
-  void tear_down() final;
-
-  struct CallingCodeInfo;
-  struct CountryInfo;
-  struct CountryList;
-
-  string get_main_language_code();
-
-  static bool is_fragment_phone_number(string phone_number);
-
-  void do_get_countries(string language_code, bool is_recursive,
-                        Promise<td_api::object_ptr<td_api::countries>> &&promise);
-
-  void do_get_phone_number_info(string phone_number_prefix, string language_code, bool is_recursive,
-                                Promise<td_api::object_ptr<td_api::phoneNumberInfo>> &&promise);
-
-  void load_country_list(string language_code, int32 hash, Promise<Unit> &&promise);
-
-  void on_get_country_list(const string &language_code,
-                           Result<tl_object_ptr<telegram_api::help_CountriesList>> r_country_list);
-
-  static void on_get_country_list_impl(const string &language_code,
-                                       tl_object_ptr<telegram_api::help_CountriesList> country_list);
-
-  static const CountryList *get_country_list(CountryInfoManager *manager, const string &language_code);
-
-  static td_api::object_ptr<td_api::phoneNumberInfo> get_phone_number_info_object(const CountryList *list,
-                                                                                  Slice phone_number);
-
-  static std::mutex country_mutex_;
-
-  static int32 manager_count_;
-
-  static FlatHashMap<string, unique_ptr<CountryList>> countries_;
-
-  static string fragment_prefixes_str_;
-  static vector<string> fragment_prefixes_;
-
-  FlatHashMap<string, vector<Promise<Unit>>> pending_load_country_queries_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/CustomEmojiId.h b/third-party/td/td/td/telegram/CustomEmojiId.h
deleted file mode 100644
index 8cce0e6533..0000000000
--- a/third-party/td/td/td/telegram/CustomEmojiId.h
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class CustomEmojiId {
-  int64 id = 0;
-
- public:
-  CustomEmojiId() = default;
-
-  explicit constexpr CustomEmojiId(int64 custom_emoji_id) : id(custom_emoji_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  CustomEmojiId(T custom_emoji_id) = delete;
-
-  bool is_valid() const {
-    return id != 0;
-  }
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const CustomEmojiId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const CustomEmojiId &other) const {
-    return id != other.id;
-  }
-
-  static vector<CustomEmojiId> get_custom_emoji_ids(const vector<int64> &document_ids) {
-    vector<CustomEmojiId> custom_emoji_ids;
-    custom_emoji_ids.reserve(document_ids.size());
-    for (auto &document_id : document_ids) {
-      custom_emoji_ids.emplace_back(document_id);
-    }
-    return custom_emoji_ids;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_long();
-  }
-};
-
-struct CustomEmojiIdHash {
-  uint32 operator()(CustomEmojiId custom_emoji_id) const {
-    return Hash<int64>()(custom_emoji_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, CustomEmojiId custom_emoji_id) {
-  return string_builder << "custom emoji " << custom_emoji_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DelayDispatcher.cpp b/third-party/td/td/td/telegram/DelayDispatcher.cpp
deleted file mode 100644
index b82a6969b6..0000000000
--- a/third-party/td/td/td/telegram/DelayDispatcher.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DelayDispatcher.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-
-namespace td {
-
-void DelayDispatcher::send_with_callback(NetQueryPtr query, ActorShared<NetQueryCallback> callback) {
-  send_with_callback_and_delay(std::move(query), std::move(callback), default_delay_);
-}
-
-void DelayDispatcher::send_with_callback_and_delay(NetQueryPtr query, ActorShared<NetQueryCallback> callback,
-                                                   double delay) {
-  queue_.push({std::move(query), std::move(callback), delay});
-  loop();
-}
-
-void DelayDispatcher::loop() {
-  if (!wakeup_at_.is_in_past()) {
-    set_timeout_at(wakeup_at_.at());
-    return;
-  }
-
-  if (queue_.empty()) {
-    return;
-  }
-
-  auto query = std::move(queue_.front());
-  queue_.pop();
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query.net_query), std::move(query.callback));
-
-  wakeup_at_ = Timestamp::in(query.delay);
-
-  if (queue_.empty()) {
-    return;
-  }
-
-  set_timeout_at(wakeup_at_.at());
-}
-
-void DelayDispatcher::close_silent() {
-  while (!queue_.empty()) {
-    auto query = std::move(queue_.front());
-    queue_.pop();
-    query.net_query->clear();
-  }
-  stop();
-}
-
-void DelayDispatcher::tear_down() {
-  while (!queue_.empty()) {
-    auto query = std::move(queue_.front());
-    queue_.pop();
-    query.net_query->set_error(Global::request_aborted_error());
-    send_closure(std::move(query.callback), &NetQueryCallback::on_result, std::move(query.net_query));
-  }
-  parent_.reset();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DelayDispatcher.h b/third-party/td/td/td/telegram/DelayDispatcher.h
deleted file mode 100644
index 49ca5e344e..0000000000
--- a/third-party/td/td/td/telegram/DelayDispatcher.h
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/Time.h"
-
-#include <queue>
-
-namespace td {
-
-class DelayDispatcher final : public Actor {
- public:
-  DelayDispatcher(double default_delay, ActorShared<> parent)
-      : default_delay_(default_delay), parent_(std::move(parent)) {
-  }
-
-  void send_with_callback(NetQueryPtr query, ActorShared<NetQueryCallback> callback);
-  void send_with_callback_and_delay(NetQueryPtr query, ActorShared<NetQueryCallback> callback, double delay);
-
-  void close_silent();
-
- private:
-  struct Query {
-    NetQueryPtr net_query;
-    ActorShared<NetQueryCallback> callback;
-    double delay;
-  };
-  std::queue<Query> queue_;
-  Timestamp wakeup_at_;
-  double default_delay_;
-  ActorShared<> parent_;
-
-  void loop() final;
-  void tear_down() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Dependencies.cpp b/third-party/td/td/td/telegram/Dependencies.cpp
deleted file mode 100644
index b8a67eb5be..0000000000
--- a/third-party/td/td/td/telegram/Dependencies.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Dependencies.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-void Dependencies::add(UserId user_id) {
-  if (user_id.is_valid()) {
-    user_ids.insert(user_id);
-  }
-}
-
-void Dependencies::add(ChatId chat_id) {
-  if (chat_id.is_valid()) {
-    chat_ids.insert(chat_id);
-  }
-}
-
-void Dependencies::add(ChannelId channel_id) {
-  if (channel_id.is_valid()) {
-    channel_ids.insert(channel_id);
-  }
-}
-
-void Dependencies::add(SecretChatId secret_chat_id) {
-  if (secret_chat_id.is_valid()) {
-    secret_chat_ids.insert(secret_chat_id);
-  }
-}
-
-void Dependencies::add(WebPageId web_page_id) {
-  if (web_page_id.is_valid()) {
-    web_page_ids.insert(web_page_id);
-  }
-}
-
-void Dependencies::add(StoryFullId story_full_id) {
-  if (story_full_id.is_valid()) {
-    add_dialog_and_dependencies(story_full_id.get_dialog_id());
-    story_full_ids.insert(story_full_id);
-  }
-}
-
-void Dependencies::add_dialog_and_dependencies(DialogId dialog_id) {
-  if (dialog_id.is_valid() && dialog_ids.insert(dialog_id).second) {
-    add_dialog_dependencies(dialog_id);
-  }
-}
-
-void Dependencies::add_dialog_dependencies(DialogId dialog_id) {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      add(dialog_id.get_user_id());
-      break;
-    case DialogType::Chat:
-      add(dialog_id.get_chat_id());
-      break;
-    case DialogType::Channel:
-      add(dialog_id.get_channel_id());
-      break;
-    case DialogType::SecretChat:
-      add(dialog_id.get_secret_chat_id());
-      break;
-    case DialogType::None:
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void Dependencies::add_message_sender_dependencies(DialogId dialog_id) {
-  if (dialog_id.get_type() == DialogType::User) {
-    add(dialog_id.get_user_id());
-  } else {
-    add_dialog_and_dependencies(dialog_id);
-  }
-}
-
-bool Dependencies::resolve_force(Td *td, const char *source, bool ignore_errors) const {
-  bool success = true;
-  for (auto user_id : user_ids) {
-    if (!td->user_manager_->have_user_force(user_id, source)) {
-      if (!ignore_errors) {
-        LOG(ERROR) << "Can't find " << user_id << " from " << source;
-      }
-      success = false;
-    }
-  }
-  for (auto chat_id : chat_ids) {
-    if (!td->chat_manager_->have_chat_force(chat_id, source)) {
-      if (!ignore_errors) {
-        LOG(ERROR) << "Can't find " << chat_id << " from " << source;
-      }
-      success = false;
-    }
-  }
-  for (auto channel_id : channel_ids) {
-    if (!td->chat_manager_->have_channel_force(channel_id, source)) {
-      if (td->chat_manager_->have_min_channel(channel_id)) {
-        LOG(INFO) << "Can't find " << channel_id << " from " << source << ", but have it as a min-channel";
-        continue;
-      }
-      if (!ignore_errors) {
-        LOG(ERROR) << "Can't find " << channel_id << " from " << source;
-      }
-      success = false;
-    }
-  }
-  for (auto secret_chat_id : secret_chat_ids) {
-    if (!td->user_manager_->have_secret_chat_force(secret_chat_id, source)) {
-      if (!ignore_errors) {
-        LOG(ERROR) << "Can't find " << secret_chat_id << " from " << source;
-      }
-      success = false;
-    }
-  }
-  for (auto dialog_id : dialog_ids) {
-    if (!td->dialog_manager_->have_dialog_force(dialog_id, source)) {
-      if (!ignore_errors) {
-        LOG(ERROR) << "Can't find " << dialog_id << " from " << source;
-      }
-      td->dialog_manager_->force_create_dialog(dialog_id, source, true);
-      success = false;
-    }
-  }
-  for (auto web_page_id : web_page_ids) {
-    if (!td->web_pages_manager_->have_web_page_force(web_page_id)) {
-      LOG(INFO) << "Can't find " << web_page_id << " from " << source;
-    }
-  }
-  for (auto story_full_id : story_full_ids) {
-    if (!td->story_manager_->have_story_force(story_full_id)) {
-      LOG(INFO) << "Can't find " << story_full_id << " from " << source;
-    }
-  }
-  return success;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Dependencies.h b/third-party/td/td/td/telegram/Dependencies.h
deleted file mode 100644
index 41115ff69d..0000000000
--- a/third-party/td/td/td/telegram/Dependencies.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/WebPageId.h"
-
-#include "td/utils/FlatHashSet.h"
-
-namespace td {
-
-class Td;
-
-class Dependencies {
-  FlatHashSet<UserId, UserIdHash> user_ids;
-  FlatHashSet<ChatId, ChatIdHash> chat_ids;
-  FlatHashSet<ChannelId, ChannelIdHash> channel_ids;
-  FlatHashSet<SecretChatId, SecretChatIdHash> secret_chat_ids;
-  FlatHashSet<DialogId, DialogIdHash> dialog_ids;
-  FlatHashSet<WebPageId, WebPageIdHash> web_page_ids;
-  FlatHashSet<StoryFullId, StoryFullIdHash> story_full_ids;
-
- public:
-  void add(UserId user_id);
-
-  void add(ChatId chat_id);
-
-  void add(ChannelId channel_id);
-
-  void add(SecretChatId secret_chat_id);
-
-  void add(WebPageId web_page_id);
-
-  void add(StoryFullId story_full_id);
-
-  void add_dialog_and_dependencies(DialogId dialog_id);
-
-  void add_dialog_dependencies(DialogId dialog_id);
-
-  void add_message_sender_dependencies(DialogId dialog_id);
-
-  bool resolve_force(Td *td, const char *source, bool ignore_errors = false) const;
-
-  const FlatHashSet<DialogId, DialogIdHash> &get_dialog_ids() const {
-    return dialog_ids;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DeviceTokenManager.cpp b/third-party/td/td/td/telegram/DeviceTokenManager.cpp
deleted file mode 100644
index 361716e100..0000000000
--- a/third-party/td/td/td/telegram/DeviceTokenManager.cpp
+++ /dev/null
@@ -1,471 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DeviceTokenManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/mtproto/DhHandshake.h"
-
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-#include <type_traits>
-
-namespace td {
-
-template <class StorerT>
-void DeviceTokenManager::TokenInfo::store(StorerT &storer) const {
-  using td::store;
-  bool has_other_user_ids = !other_user_ids.empty();
-  bool is_sync = state == State::Sync;
-  bool is_unregister = state == State::Unregister;
-  bool is_register = state == State::Register;
-  CHECK(state != State::Reregister);
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(false);
-  STORE_FLAG(is_sync);
-  STORE_FLAG(is_unregister);
-  STORE_FLAG(is_register);
-  STORE_FLAG(is_app_sandbox);
-  STORE_FLAG(encrypt);
-  STORE_FLAG(has_other_user_ids);
-  END_STORE_FLAGS();
-  store(token, storer);
-  if (has_other_user_ids) {
-    store(other_user_ids, storer);
-  }
-  if (encrypt) {
-    store(encryption_key, storer);
-    store(encryption_key_id, storer);
-  }
-}
-
-template <class ParserT>
-void DeviceTokenManager::TokenInfo::parse(ParserT &parser) {
-  using td::parse;
-  bool has_other_user_ids_legacy;
-  bool has_other_user_ids;
-  bool is_sync;
-  bool is_unregister;
-  bool is_register;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_other_user_ids_legacy);
-  PARSE_FLAG(is_sync);
-  PARSE_FLAG(is_unregister);
-  PARSE_FLAG(is_register);
-  PARSE_FLAG(is_app_sandbox);
-  PARSE_FLAG(encrypt);
-  PARSE_FLAG(has_other_user_ids);
-  END_PARSE_FLAGS();
-  CHECK(is_sync + is_unregister + is_register == 1);
-  if (is_sync) {
-    state = State::Sync;
-  } else if (is_unregister) {
-    state = State::Unregister;
-  } else {
-    state = State::Register;
-  }
-  parse(token, parser);
-  if (has_other_user_ids_legacy) {
-    vector<int32> other_user_ids_legacy;
-    parse(other_user_ids_legacy, parser);
-    other_user_ids = transform(other_user_ids_legacy, [](int32 user_id) { return static_cast<int64>(user_id); });
-  }
-  if (has_other_user_ids) {
-    parse(other_user_ids, parser);
-  }
-  if (encrypt) {
-    parse(encryption_key, parser);
-    parse(encryption_key_id, parser);
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DeviceTokenManager::TokenInfo::State &state) {
-  switch (state) {
-    case DeviceTokenManager::TokenInfo::State::Sync:
-      return string_builder << "Synchronized";
-    case DeviceTokenManager::TokenInfo::State::Unregister:
-      return string_builder << "Unregister";
-    case DeviceTokenManager::TokenInfo::State::Register:
-      return string_builder << "Register";
-    case DeviceTokenManager::TokenInfo::State::Reregister:
-      return string_builder << "Reregister";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DeviceTokenManager::TokenInfo &token_info) {
-  string_builder << token_info.state << " token \"" << format::escaped(token_info.token) << "\"";
-  if (!token_info.other_user_ids.empty()) {
-    string_builder << ", with other users " << token_info.other_user_ids;
-  }
-  if (token_info.is_app_sandbox) {
-    string_builder << ", sandboxed";
-  }
-  if (token_info.encrypt) {
-    string_builder << ", encrypted with ID " << token_info.encryption_key_id;
-  }
-  return string_builder;
-}
-
-void DeviceTokenManager::register_device(tl_object_ptr<td_api::DeviceToken> device_token_ptr,
-                                         const vector<UserId> &other_user_ids,
-                                         Promise<td_api::object_ptr<td_api::pushReceiverId>> promise) {
-  if (device_token_ptr == nullptr) {
-    return promise.set_error(Status::Error(400, "Device token must be non-empty"));
-  }
-  TokenType token_type;
-  string token;
-  bool is_app_sandbox = false;
-  bool encrypt = false;
-  switch (device_token_ptr->get_id()) {
-    case td_api::deviceTokenApplePush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenApplePush *>(device_token_ptr.get());
-      token = std::move(device_token->device_token_);
-      token_type = TokenType::Apns;
-      is_app_sandbox = device_token->is_app_sandbox_;
-      break;
-    }
-    case td_api::deviceTokenFirebaseCloudMessaging::ID: {
-      auto device_token = static_cast<td_api::deviceTokenFirebaseCloudMessaging *>(device_token_ptr.get());
-      token = std::move(device_token->token_);
-      token_type = TokenType::Fcm;
-      encrypt = device_token->encrypt_;
-      break;
-    }
-    case td_api::deviceTokenMicrosoftPush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenMicrosoftPush *>(device_token_ptr.get());
-      token = std::move(device_token->channel_uri_);
-      token_type = TokenType::Mpns;
-      break;
-    }
-    case td_api::deviceTokenSimplePush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenSimplePush *>(device_token_ptr.get());
-      token = std::move(device_token->endpoint_);
-      token_type = TokenType::SimplePush;
-      break;
-    }
-    case td_api::deviceTokenUbuntuPush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenUbuntuPush *>(device_token_ptr.get());
-      token = std::move(device_token->token_);
-      token_type = TokenType::UbuntuPhone;
-      break;
-    }
-    case td_api::deviceTokenBlackBerryPush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenBlackBerryPush *>(device_token_ptr.get());
-      token = std::move(device_token->token_);
-      token_type = TokenType::BlackBerry;
-      break;
-    }
-    case td_api::deviceTokenWindowsPush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenWindowsPush *>(device_token_ptr.get());
-      token = std::move(device_token->access_token_);
-      token_type = TokenType::Wns;
-      break;
-    }
-    case td_api::deviceTokenApplePushVoIP::ID: {
-      auto device_token = static_cast<td_api::deviceTokenApplePushVoIP *>(device_token_ptr.get());
-      token = std::move(device_token->device_token_);
-      token_type = TokenType::ApnsVoip;
-      is_app_sandbox = device_token->is_app_sandbox_;
-      encrypt = device_token->encrypt_;
-      break;
-    }
-    case td_api::deviceTokenWebPush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenWebPush *>(device_token_ptr.get());
-      if (device_token->endpoint_.find(',') != string::npos) {
-        return promise.set_error(Status::Error(400, "Illegal endpoint value"));
-      }
-      if (!is_base64url(device_token->p256dh_base64url_)) {
-        return promise.set_error(Status::Error(400, "Public key must be base64url-encoded"));
-      }
-      if (!is_base64url(device_token->auth_base64url_)) {
-        return promise.set_error(Status::Error(400, "Authentication secret must be base64url-encoded"));
-      }
-      if (!clean_input_string(device_token->endpoint_)) {
-        return promise.set_error(Status::Error(400, "Endpoint must be encoded in UTF-8"));
-      }
-
-      if (!device_token->endpoint_.empty()) {
-        token = json_encode<string>(json_object([&device_token](auto &o) {
-          o("endpoint", device_token->endpoint_);
-          o("keys", json_object([&device_token](auto &o) {
-              o("p256dh", device_token->p256dh_base64url_);
-              o("auth", device_token->auth_base64url_);
-            }));
-        }));
-      }
-      token_type = TokenType::WebPush;
-      break;
-    }
-    case td_api::deviceTokenMicrosoftPushVoIP::ID: {
-      auto device_token = static_cast<td_api::deviceTokenMicrosoftPushVoIP *>(device_token_ptr.get());
-      token = std::move(device_token->channel_uri_);
-      token_type = TokenType::MpnsVoip;
-      break;
-    }
-    case td_api::deviceTokenTizenPush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenTizenPush *>(device_token_ptr.get());
-      token = std::move(device_token->reg_id_);
-      token_type = TokenType::Tizen;
-      break;
-    }
-    case td_api::deviceTokenHuaweiPush::ID: {
-      auto device_token = static_cast<td_api::deviceTokenHuaweiPush *>(device_token_ptr.get());
-      token = std::move(device_token->token_);
-      token_type = TokenType::Huawei;
-      encrypt = device_token->encrypt_;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  if (!clean_input_string(token)) {
-    return promise.set_error(Status::Error(400, "Device token must be encoded in UTF-8"));
-  }
-  for (auto &other_user_id : other_user_ids) {
-    if (!other_user_id.is_valid()) {
-      return promise.set_error(Status::Error(400, "Invalid user_id among other user_ids"));
-    }
-  }
-  auto input_user_ids = UserId::get_input_user_ids(other_user_ids);
-
-  auto &info = tokens_[token_type];
-  if (token.empty()) {
-    if (info.token.empty()) {
-      // already unregistered
-      return promise.set_value(td_api::make_object<td_api::pushReceiverId>());
-    }
-
-    info.state = TokenInfo::State::Unregister;
-  } else {
-    if ((info.state == TokenInfo::State::Reregister || info.state == TokenInfo::State::Sync) && info.token == token &&
-        info.other_user_ids == input_user_ids && info.is_app_sandbox == is_app_sandbox && encrypt == info.encrypt) {
-      int64 push_token_id = encrypt ? info.encryption_key_id : G()->get_option_integer("my_id");
-      return promise.set_value(td_api::make_object<td_api::pushReceiverId>(push_token_id));
-    }
-
-    info.state = TokenInfo::State::Register;
-    info.token = std::move(token);
-  }
-  info.net_query_id = 0;
-  info.other_user_ids = std::move(input_user_ids);
-  info.is_app_sandbox = is_app_sandbox;
-  if (encrypt != info.encrypt) {
-    if (encrypt) {
-      constexpr size_t ENCRYPTION_KEY_LENGTH = 256;
-      constexpr auto MIN_ENCRYPTION_KEY_ID = static_cast<int64>(10000000000000ll);
-      info.encryption_key.resize(ENCRYPTION_KEY_LENGTH);
-      while (true) {
-        Random::secure_bytes(info.encryption_key);
-        info.encryption_key_id = mtproto::DhHandshake::calc_key_id(info.encryption_key);
-        if (info.encryption_key_id <= -MIN_ENCRYPTION_KEY_ID || info.encryption_key_id >= MIN_ENCRYPTION_KEY_ID) {
-          // ensure that encryption key ID never collide with anything
-          break;
-        }
-      }
-    } else {
-      info.encryption_key.clear();
-      info.encryption_key_id = 0;
-    }
-    info.encrypt = encrypt;
-  }
-  info.promise.set_value(td_api::make_object<td_api::pushReceiverId>());
-  info.promise = std::move(promise);
-  save_info(token_type);
-}
-
-void DeviceTokenManager::reregister_device() {
-  for (int32 token_type = 1; token_type < TokenType::Size; token_type++) {
-    auto &token = tokens_[token_type];
-    if (token.state == TokenInfo::State::Sync && !token.token.empty()) {
-      token.state = TokenInfo::State::Reregister;
-    }
-  }
-  loop();
-}
-
-vector<std::pair<int64, Slice>> DeviceTokenManager::get_encryption_keys() const {
-  vector<std::pair<int64, Slice>> result;
-  for (int32 token_type = 1; token_type < TokenType::Size; token_type++) {
-    auto &info = tokens_[token_type];
-    if (!info.token.empty() && info.state != TokenInfo::State::Unregister) {
-      if (info.encrypt) {
-        result.emplace_back(info.encryption_key_id, info.encryption_key);
-      } else {
-        result.emplace_back(G()->get_option_integer("my_id"), Slice());
-      }
-    }
-  }
-  return result;
-}
-
-string DeviceTokenManager::get_database_key(int32 token_type) {
-  return PSTRING() << "device_token" << token_type;
-}
-
-void DeviceTokenManager::start_up() {
-  for (int32 token_type = 1; token_type < TokenType::Size; token_type++) {
-    auto serialized = G()->td_db()->get_binlog_pmc()->get(get_database_key(token_type));
-    if (serialized.empty()) {
-      continue;
-    }
-
-    auto &token = tokens_[token_type];
-    char c = serialized[0];
-    if (c == '*') {
-      auto status = unserialize(token, serialized.substr(1));
-      if (status.is_error()) {
-        token = TokenInfo();
-        LOG(ERROR) << "Invalid serialized TokenInfo: " << format::escaped(serialized) << ' ' << status;
-        continue;
-      }
-    } else {
-      // legacy
-      if (c == '+') {
-        token.state = TokenInfo::State::Register;
-      } else if (c == '-') {
-        token.state = TokenInfo::State::Unregister;
-      } else if (c == '=') {
-        token.state = TokenInfo::State::Sync;
-      } else {
-        LOG(ERROR) << "Invalid serialized TokenInfo: " << format::escaped(serialized);
-        continue;
-      }
-      token.token = serialized.substr(1);
-    }
-    LOG(INFO) << "Have device token " << token_type << "--->" << token;
-    if (token.state == TokenInfo::State::Sync && !token.token.empty()) {
-      token.state = TokenInfo::State::Reregister;
-    }
-  }
-  loop();
-}
-
-void DeviceTokenManager::save_info(int32 token_type) {
-  LOG(INFO) << "SET device token " << token_type << "--->" << tokens_[token_type];
-  if (tokens_[token_type].token.empty()) {
-    G()->td_db()->get_binlog_pmc()->erase(get_database_key(token_type));
-  } else {
-    G()->td_db()->get_binlog_pmc()->set(get_database_key(token_type), "*" + serialize(tokens_[token_type]));
-  }
-  sync_cnt_++;
-  G()->td_db()->get_binlog_pmc()->force_sync(
-      create_event_promise(self_closure(this, &DeviceTokenManager::dec_sync_cnt)), "DeviceTokenManager::save_info");
-}
-
-void DeviceTokenManager::dec_sync_cnt() {
-  sync_cnt_--;
-  loop();
-}
-
-void DeviceTokenManager::loop() {
-  if (G()->close_flag() || sync_cnt_ != 0) {
-    return;
-  }
-  for (int32 token_type = 1; token_type < TokenType::Size; token_type++) {
-    auto &info = tokens_[token_type];
-    if (info.state == TokenInfo::State::Sync) {
-      continue;
-    }
-    if (info.net_query_id != 0) {
-      continue;
-    }
-    // have to send query
-    NetQueryPtr net_query;
-    if (info.state == TokenInfo::State::Unregister) {
-      net_query = G()->net_query_creator().create(
-          telegram_api::account_unregisterDevice(token_type, info.token, vector<int64>(info.other_user_ids)));
-    } else {
-      bool no_muted = true;
-      net_query = G()->net_query_creator().create(
-          telegram_api::account_registerDevice(0, no_muted, token_type, info.token, info.is_app_sandbox,
-                                               BufferSlice(info.encryption_key), vector<int64>(info.other_user_ids)));
-    }
-    info.net_query_id = net_query->id();
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(net_query), actor_shared(this, token_type));
-  }
-}
-
-void DeviceTokenManager::on_result(NetQueryPtr net_query) {
-  auto token_type = static_cast<TokenType>(get_link_token());
-  CHECK(token_type >= 1 && token_type < TokenType::Size);
-  auto &info = tokens_[token_type];
-  if (info.net_query_id != net_query->id()) {
-    net_query->clear();
-    return;
-  }
-  info.net_query_id = 0;
-  CHECK(info.state != TokenInfo::State::Sync);
-
-  static_assert(std::is_same<telegram_api::account_registerDevice::ReturnType,
-                             telegram_api::account_unregisterDevice::ReturnType>::value,
-                "");
-  auto r_flag = fetch_result<telegram_api::account_registerDevice>(std::move(net_query));
-  if (r_flag.is_ok() && r_flag.ok()) {
-    if (info.promise) {
-      int64 push_token_id = 0;
-      if (info.state == TokenInfo::State::Register) {
-        if (info.encrypt) {
-          push_token_id = info.encryption_key_id;
-        } else {
-          push_token_id = G()->get_option_integer("my_id");
-        }
-      }
-      info.promise.set_value(td_api::make_object<td_api::pushReceiverId>(push_token_id));
-    }
-    if (info.state == TokenInfo::State::Unregister) {
-      info.token.clear();
-    }
-    info.state = TokenInfo::State::Sync;
-  } else {
-    int32 retry_after = 0;
-    if (r_flag.is_error()) {
-      auto &error = r_flag.error();
-      if (!G()->is_expected_error(error)) {
-        LOG(ERROR) << "Failed to " << info.state << " device: " << error;
-      } else {
-        retry_after = Global::get_retry_after(error);
-      }
-      info.promise.set_error(r_flag.move_as_error());
-    } else {
-      info.promise.set_error(Status::Error(400, "Receive false as result of registerDevice server request"));
-    }
-    if (info.state == TokenInfo::State::Reregister) {
-      // keep trying to reregister the token
-      return set_timeout_in(clamp(retry_after, 1, 3600));
-    } else if (info.state == TokenInfo::State::Register) {
-      info.state = TokenInfo::State::Unregister;
-    } else {
-      CHECK(info.state == TokenInfo::State::Unregister);
-      info.state = TokenInfo::State::Sync;
-      info.token.clear();
-    }
-  }
-  save_info(token_type);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DeviceTokenManager.h b/third-party/td/td/td/telegram/DeviceTokenManager.h
deleted file mode 100644
index f3cc24071f..0000000000
--- a/third-party/td/td/td/telegram/DeviceTokenManager.h
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-#include <array>
-#include <utility>
-
-namespace td {
-
-class DeviceTokenManager final : public NetQueryCallback {
- public:
-  explicit DeviceTokenManager(ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-  void register_device(tl_object_ptr<td_api::DeviceToken> device_token_ptr, const vector<UserId> &other_user_ids,
-                       Promise<td_api::object_ptr<td_api::pushReceiverId>> promise);
-
-  void reregister_device();
-
-  vector<std::pair<int64, Slice>> get_encryption_keys() const;
-
- private:
-  ActorShared<> parent_;
-  enum TokenType : int32 {
-    Apns = 1,
-    Fcm = 2,
-    Mpns = 3,
-    SimplePush = 4,
-    UbuntuPhone = 5,
-    BlackBerry = 6,
-    Unused = 7,
-    Wns = 8,
-    ApnsVoip = 9,
-    WebPush = 10,
-    MpnsVoip = 11,
-    Tizen = 12,
-    Huawei = 13,
-    Size
-  };
-  struct TokenInfo {
-    enum class State : int32 { Sync, Unregister, Register, Reregister };
-    State state = State::Sync;
-    string token;
-    uint64 net_query_id = 0;
-    vector<int64> other_user_ids;
-    bool is_app_sandbox = false;
-    bool encrypt = false;
-    string encryption_key;
-    int64 encryption_key_id = 0;
-    Promise<td_api::object_ptr<td_api::pushReceiverId>> promise;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const TokenInfo::State &state);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const TokenInfo &token_info);
-
-  std::array<TokenInfo, TokenType::Size> tokens_;
-  int32 sync_cnt_{0};
-
-  void start_up() final;
-
-  static string get_database_key(int32 token_type);
-  void save_info(int32 token_type);
-
-  void dec_sync_cnt();
-
-  void loop() final;
-  void on_result(NetQueryPtr net_query) final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DhCache.cpp b/third-party/td/td/td/telegram/DhCache.cpp
deleted file mode 100644
index 327279b0cd..0000000000
--- a/third-party/td/td/td/telegram/DhCache.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DhCache.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-static string good_prime_key(Slice prime_str) {
-  string key("good_prime:");
-  key.append(prime_str.data(), prime_str.size());
-  return key;
-}
-
-int DhCache::is_good_prime(Slice prime_str) const {
-  static string built_in_good_prime =
-      hex_decode(
-          "c71caeb9c6b1c9048e6c522f70f13f73980d40238e3e21c14934d037563d930f48198a0aa7c14058229493d22530f4dbfa336f6e0ac9"
-          "25139543aed44cce7c3720fd51f69458705ac68cd4fe6b6b13abdc9746512969328454f18faf8c595f642477fe96bb2a941d5bcd1d4a"
-          "c8cc49880708fa9b378e3c4f3a9060bee67cf9a4a4a695811051907e162753b56b0f6b410dba74d8a84b2a14b3144e0ef1284754fd17"
-          "ed950d5965b4b9dd46582db1178d169c6bc465b0d6ff9ca3928fef5b9ae4e418fc15e83ebea0f87fa9ff5eed70050ded2849f47bf959"
-          "d956850ce929851f0d8115f635b105ee2e4e15d04b2454bf6f4fadf034b10403119cd8e3b92fcc5b")
-          .move_as_ok();
-  if (prime_str == built_in_good_prime) {
-    return 1;
-  }
-
-  string value = G()->td_db()->get_binlog_pmc()->get(good_prime_key(prime_str));
-  if (value == "good") {
-    return 1;
-  }
-  if (value == "bad") {
-    return 0;
-  }
-  CHECK(value.empty());
-  return -1;
-}
-
-void DhCache::add_good_prime(Slice prime_str) const {
-  G()->td_db()->get_binlog_pmc()->set(good_prime_key(prime_str), "good");
-}
-
-void DhCache::add_bad_prime(Slice prime_str) const {
-  G()->td_db()->get_binlog_pmc()->set(good_prime_key(prime_str), "bad");
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DhCache.h b/third-party/td/td/td/telegram/DhCache.h
deleted file mode 100644
index de765e9cb7..0000000000
--- a/third-party/td/td/td/telegram/DhCache.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/DhCallback.h"
-
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class DhCache final : public mtproto::DhCallback {
- public:
-  int is_good_prime(Slice prime_str) const final;
-  void add_good_prime(Slice prime_str) const final;
-  void add_bad_prime(Slice prime_str) const final;
-
-  static mtproto::DhCallback *instance() {
-    static DhCache res;
-    return &res;
-  }
-};
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DhConfig.h b/third-party/td/td/td/telegram/DhConfig.h
deleted file mode 100644
index b8960fe346..0000000000
--- a/third-party/td/td/td/telegram/DhConfig.h
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class DhConfig {
- public:
-  int32 version = 0;
-  string prime;
-  int32 g = 0;
-
-  bool empty() const {
-    return prime.empty();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(version);
-    storer.store_string(prime);
-    storer.store_int(g);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    version = parser.fetch_int();
-    prime = parser.template fetch_string<std::string>();
-    g = parser.fetch_int();
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogAction.cpp b/third-party/td/td/td/telegram/DialogAction.cpp
deleted file mode 100644
index 0edbf1eb91..0000000000
--- a/third-party/td/td/td/telegram/DialogAction.cpp
+++ /dev/null
@@ -1,556 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogAction.h"
-
-#include "td/telegram/misc.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/emoji.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-bool DialogAction::is_valid_emoji(string &emoji) {
-  if (!clean_input_string(emoji)) {
-    return false;
-  }
-  return is_emoji(emoji);
-}
-
-void DialogAction::init(Type type) {
-  type_ = type;
-  progress_ = 0;
-  emoji_.clear();
-}
-
-void DialogAction::init(Type type, int32 progress) {
-  type_ = type;
-  progress_ = clamp(progress, 0, 100);
-  emoji_.clear();
-}
-
-void DialogAction::init(Type type, string emoji) {
-  if (is_valid_emoji(emoji)) {
-    type_ = type;
-    progress_ = 0;
-    emoji_ = std::move(emoji);
-  } else {
-    init(Type::Cancel);
-  }
-}
-
-void DialogAction::init(Type type, int32 message_id, string emoji, const string &data) {
-  if (ServerMessageId(message_id).is_valid() && is_valid_emoji(emoji) && check_utf8(data)) {
-    type_ = type;
-    progress_ = message_id;
-    emoji_ = PSTRING() << emoji << '\xFF' << data;
-  } else {
-    init(Type::Cancel);
-  }
-}
-
-DialogAction::DialogAction(Type type, int32 progress) {
-  init(type, progress);
-}
-
-DialogAction::DialogAction(td_api::object_ptr<td_api::ChatAction> &&action) {
-  if (action == nullptr) {
-    return;
-  }
-
-  switch (action->get_id()) {
-    case td_api::chatActionCancel::ID:
-      init(Type::Cancel);
-      break;
-    case td_api::chatActionTyping::ID:
-      init(Type::Typing);
-      break;
-    case td_api::chatActionRecordingVideo::ID:
-      init(Type::RecordingVideo);
-      break;
-    case td_api::chatActionUploadingVideo::ID: {
-      auto uploading_action = move_tl_object_as<td_api::chatActionUploadingVideo>(action);
-      init(Type::UploadingVideo, uploading_action->progress_);
-      break;
-    }
-    case td_api::chatActionRecordingVoiceNote::ID:
-      init(Type::RecordingVoiceNote);
-      break;
-    case td_api::chatActionUploadingVoiceNote::ID: {
-      auto uploading_action = move_tl_object_as<td_api::chatActionUploadingVoiceNote>(action);
-      init(Type::UploadingVoiceNote, uploading_action->progress_);
-      break;
-    }
-    case td_api::chatActionUploadingPhoto::ID: {
-      auto uploading_action = move_tl_object_as<td_api::chatActionUploadingPhoto>(action);
-      init(Type::UploadingPhoto, uploading_action->progress_);
-      break;
-    }
-    case td_api::chatActionUploadingDocument::ID: {
-      auto uploading_action = move_tl_object_as<td_api::chatActionUploadingDocument>(action);
-      init(Type::UploadingDocument, uploading_action->progress_);
-      break;
-    }
-    case td_api::chatActionChoosingLocation::ID:
-      init(Type::ChoosingLocation);
-      break;
-    case td_api::chatActionChoosingContact::ID:
-      init(Type::ChoosingContact);
-      break;
-    case td_api::chatActionStartPlayingGame::ID:
-      init(Type::StartPlayingGame);
-      break;
-    case td_api::chatActionRecordingVideoNote::ID:
-      init(Type::RecordingVideoNote);
-      break;
-    case td_api::chatActionUploadingVideoNote::ID: {
-      auto uploading_action = move_tl_object_as<td_api::chatActionUploadingVideoNote>(action);
-      init(Type::UploadingVideoNote, uploading_action->progress_);
-      break;
-    }
-    case td_api::chatActionChoosingSticker::ID:
-      init(Type::ChoosingSticker);
-      break;
-    case td_api::chatActionWatchingAnimations::ID: {
-      auto watching_animations_action = move_tl_object_as<td_api::chatActionWatchingAnimations>(action);
-      init(Type::WatchingAnimations, std::move(watching_animations_action->emoji_));
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-DialogAction::DialogAction(telegram_api::object_ptr<telegram_api::SendMessageAction> &&action) {
-  switch (action->get_id()) {
-    case telegram_api::sendMessageCancelAction::ID:
-      init(Type::Cancel);
-      break;
-    case telegram_api::sendMessageTypingAction::ID:
-      init(Type::Typing);
-      break;
-    case telegram_api::sendMessageRecordVideoAction::ID:
-      init(Type::RecordingVideo);
-      break;
-    case telegram_api::sendMessageUploadVideoAction::ID: {
-      auto upload_video_action = move_tl_object_as<telegram_api::sendMessageUploadVideoAction>(action);
-      init(Type::UploadingVideo, upload_video_action->progress_);
-      break;
-    }
-    case telegram_api::sendMessageRecordAudioAction::ID:
-      init(Type::RecordingVoiceNote);
-      break;
-    case telegram_api::sendMessageUploadAudioAction::ID: {
-      auto upload_audio_action = move_tl_object_as<telegram_api::sendMessageUploadAudioAction>(action);
-      init(Type::UploadingVoiceNote, upload_audio_action->progress_);
-      break;
-    }
-    case telegram_api::sendMessageUploadPhotoAction::ID: {
-      auto upload_photo_action = move_tl_object_as<telegram_api::sendMessageUploadPhotoAction>(action);
-      init(Type::UploadingPhoto, upload_photo_action->progress_);
-      break;
-    }
-    case telegram_api::sendMessageUploadDocumentAction::ID: {
-      auto upload_document_action = move_tl_object_as<telegram_api::sendMessageUploadDocumentAction>(action);
-      init(Type::UploadingDocument, upload_document_action->progress_);
-      break;
-    }
-    case telegram_api::sendMessageGeoLocationAction::ID:
-      init(Type::ChoosingLocation);
-      break;
-    case telegram_api::sendMessageChooseContactAction::ID:
-      init(Type::ChoosingContact);
-      break;
-    case telegram_api::sendMessageGamePlayAction::ID:
-      init(Type::StartPlayingGame);
-      break;
-    case telegram_api::sendMessageRecordRoundAction::ID:
-      init(Type::RecordingVideoNote);
-      break;
-    case telegram_api::sendMessageUploadRoundAction::ID: {
-      auto upload_round_action = move_tl_object_as<telegram_api::sendMessageUploadRoundAction>(action);
-      init(Type::UploadingVideoNote, upload_round_action->progress_);
-      break;
-    }
-    case telegram_api::speakingInGroupCallAction::ID:
-      init(Type::SpeakingInVoiceChat);
-      break;
-    case telegram_api::sendMessageHistoryImportAction::ID: {
-      auto history_import_action = move_tl_object_as<telegram_api::sendMessageHistoryImportAction>(action);
-      init(Type::ImportingMessages, history_import_action->progress_);
-      break;
-    }
-    case telegram_api::sendMessageChooseStickerAction::ID:
-      init(Type::ChoosingSticker);
-      break;
-    case telegram_api::sendMessageEmojiInteractionSeen::ID: {
-      auto emoji_interaction_seen_action = move_tl_object_as<telegram_api::sendMessageEmojiInteractionSeen>(action);
-      init(Type::WatchingAnimations, std::move(emoji_interaction_seen_action->emoticon_));
-      break;
-    }
-    case telegram_api::sendMessageEmojiInteraction::ID: {
-      auto emoji_interaction_action = move_tl_object_as<telegram_api::sendMessageEmojiInteraction>(action);
-      init(Type::ClickingAnimatedEmoji, emoji_interaction_action->msg_id_,
-           std::move(emoji_interaction_action->emoticon_), emoji_interaction_action->interaction_->data_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-tl_object_ptr<telegram_api::SendMessageAction> DialogAction::get_input_send_message_action() const {
-  switch (type_) {
-    case Type::Cancel:
-      return make_tl_object<telegram_api::sendMessageCancelAction>();
-    case Type::Typing:
-      return make_tl_object<telegram_api::sendMessageTypingAction>();
-    case Type::RecordingVideo:
-      return make_tl_object<telegram_api::sendMessageRecordVideoAction>();
-    case Type::UploadingVideo:
-      return make_tl_object<telegram_api::sendMessageUploadVideoAction>(progress_);
-    case Type::RecordingVoiceNote:
-      return make_tl_object<telegram_api::sendMessageRecordAudioAction>();
-    case Type::UploadingVoiceNote:
-      return make_tl_object<telegram_api::sendMessageUploadAudioAction>(progress_);
-    case Type::UploadingPhoto:
-      return make_tl_object<telegram_api::sendMessageUploadPhotoAction>(progress_);
-    case Type::UploadingDocument:
-      return make_tl_object<telegram_api::sendMessageUploadDocumentAction>(progress_);
-    case Type::ChoosingLocation:
-      return make_tl_object<telegram_api::sendMessageGeoLocationAction>();
-    case Type::ChoosingContact:
-      return make_tl_object<telegram_api::sendMessageChooseContactAction>();
-    case Type::StartPlayingGame:
-      return make_tl_object<telegram_api::sendMessageGamePlayAction>();
-    case Type::RecordingVideoNote:
-      return make_tl_object<telegram_api::sendMessageRecordRoundAction>();
-    case Type::UploadingVideoNote:
-      return make_tl_object<telegram_api::sendMessageUploadRoundAction>(progress_);
-    case Type::SpeakingInVoiceChat:
-      return make_tl_object<telegram_api::speakingInGroupCallAction>();
-    case Type::ImportingMessages:
-      return make_tl_object<telegram_api::sendMessageHistoryImportAction>(progress_);
-    case Type::ChoosingSticker:
-      return make_tl_object<telegram_api::sendMessageChooseStickerAction>();
-    case Type::WatchingAnimations:
-      return make_tl_object<telegram_api::sendMessageEmojiInteractionSeen>(emoji_);
-    case Type::ClickingAnimatedEmoji:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-tl_object_ptr<secret_api::SendMessageAction> DialogAction::get_secret_input_send_message_action() const {
-  switch (type_) {
-    case Type::Cancel:
-      return make_tl_object<secret_api::sendMessageCancelAction>();
-    case Type::Typing:
-      return make_tl_object<secret_api::sendMessageTypingAction>();
-    case Type::RecordingVideo:
-      return make_tl_object<secret_api::sendMessageRecordVideoAction>();
-    case Type::UploadingVideo:
-      return make_tl_object<secret_api::sendMessageUploadVideoAction>();
-    case Type::RecordingVoiceNote:
-      return make_tl_object<secret_api::sendMessageRecordAudioAction>();
-    case Type::UploadingVoiceNote:
-      return make_tl_object<secret_api::sendMessageUploadAudioAction>();
-    case Type::UploadingPhoto:
-      return make_tl_object<secret_api::sendMessageUploadPhotoAction>();
-    case Type::UploadingDocument:
-      return make_tl_object<secret_api::sendMessageUploadDocumentAction>();
-    case Type::ChoosingLocation:
-      return make_tl_object<secret_api::sendMessageGeoLocationAction>();
-    case Type::ChoosingContact:
-      return make_tl_object<secret_api::sendMessageChooseContactAction>();
-    case Type::StartPlayingGame:
-      return make_tl_object<secret_api::sendMessageTypingAction>();
-    case Type::RecordingVideoNote:
-      return make_tl_object<secret_api::sendMessageRecordRoundAction>();
-    case Type::UploadingVideoNote:
-      return make_tl_object<secret_api::sendMessageUploadRoundAction>();
-    case Type::SpeakingInVoiceChat:
-      return make_tl_object<secret_api::sendMessageTypingAction>();
-    case Type::ImportingMessages:
-      return make_tl_object<secret_api::sendMessageTypingAction>();
-    case Type::ChoosingSticker:
-      return make_tl_object<secret_api::sendMessageTypingAction>();
-    case Type::WatchingAnimations:
-      return make_tl_object<secret_api::sendMessageTypingAction>();
-    case Type::ClickingAnimatedEmoji:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-tl_object_ptr<td_api::ChatAction> DialogAction::get_chat_action_object() const {
-  switch (type_) {
-    case Type::Cancel:
-      return td_api::make_object<td_api::chatActionCancel>();
-    case Type::Typing:
-      return td_api::make_object<td_api::chatActionTyping>();
-    case Type::RecordingVideo:
-      return td_api::make_object<td_api::chatActionRecordingVideo>();
-    case Type::UploadingVideo:
-      return td_api::make_object<td_api::chatActionUploadingVideo>(progress_);
-    case Type::RecordingVoiceNote:
-      return td_api::make_object<td_api::chatActionRecordingVoiceNote>();
-    case Type::UploadingVoiceNote:
-      return td_api::make_object<td_api::chatActionUploadingVoiceNote>(progress_);
-    case Type::UploadingPhoto:
-      return td_api::make_object<td_api::chatActionUploadingPhoto>(progress_);
-    case Type::UploadingDocument:
-      return td_api::make_object<td_api::chatActionUploadingDocument>(progress_);
-    case Type::ChoosingLocation:
-      return td_api::make_object<td_api::chatActionChoosingLocation>();
-    case Type::ChoosingContact:
-      return td_api::make_object<td_api::chatActionChoosingContact>();
-    case Type::StartPlayingGame:
-      return td_api::make_object<td_api::chatActionStartPlayingGame>();
-    case Type::RecordingVideoNote:
-      return td_api::make_object<td_api::chatActionRecordingVideoNote>();
-    case Type::UploadingVideoNote:
-      return td_api::make_object<td_api::chatActionUploadingVideoNote>(progress_);
-    case Type::ChoosingSticker:
-      return td_api::make_object<td_api::chatActionChoosingSticker>();
-    case Type::WatchingAnimations:
-      return td_api::make_object<td_api::chatActionWatchingAnimations>(emoji_);
-    case Type::ImportingMessages:
-    case Type::SpeakingInVoiceChat:
-    case Type::ClickingAnimatedEmoji:
-    default:
-      UNREACHABLE();
-      return td_api::make_object<td_api::chatActionCancel>();
-  }
-}
-
-bool DialogAction::is_canceled_by_message_of_type(MessageContentType message_content_type) const {
-  if (message_content_type == MessageContentType::None) {
-    return true;
-  }
-
-  if (type_ == Type::Typing) {
-    return message_content_type == MessageContentType::Text || message_content_type == MessageContentType::Game ||
-           can_have_message_content_caption(message_content_type);
-  }
-
-  switch (message_content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-      return type_ == Type::UploadingDocument;
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::Photo:
-      return type_ == Type::UploadingPhoto;
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::Video:
-      return type_ == Type::RecordingVideo || type_ == Type::UploadingVideo;
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::VideoNote:
-      return type_ == Type::RecordingVideoNote || type_ == Type::UploadingVideoNote;
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::VoiceNote:
-      return type_ == Type::RecordingVoiceNote || type_ == Type::UploadingVoiceNote;
-    case MessageContentType::Contact:
-      return type_ == Type::ChoosingContact;
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Venue:
-      return type_ == Type::ChoosingLocation;
-    case MessageContentType::Sticker:
-      return type_ == Type::ChoosingSticker;
-    case MessageContentType::Game:
-    case MessageContentType::Invoice:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::Story:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-DialogAction DialogAction::get_uploading_action(MessageContentType message_content_type, int32 progress) {
-  switch (message_content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::PaidMedia:
-      return DialogAction(Type::UploadingDocument, progress);
-    case MessageContentType::Photo:
-      return DialogAction(Type::UploadingPhoto, progress);
-    case MessageContentType::Video:
-      return DialogAction(Type::UploadingVideo, progress);
-    case MessageContentType::VideoNote:
-      return DialogAction(Type::UploadingVideoNote, progress);
-    case MessageContentType::VoiceNote:
-      return DialogAction(Type::UploadingVoiceNote, progress);
-    default:
-      return DialogAction();
-  }
-}
-
-DialogAction DialogAction::get_typing_action() {
-  return DialogAction(Type::Typing, 0);
-}
-
-DialogAction DialogAction::get_speaking_action() {
-  return DialogAction(Type::SpeakingInVoiceChat, 0);
-}
-
-int32 DialogAction::get_importing_messages_action_progress() const {
-  if (type_ != Type::ImportingMessages) {
-    return -1;
-  }
-  return progress_;
-}
-
-string DialogAction::get_watching_animations_emoji() const {
-  if (type_ == Type::WatchingAnimations) {
-    return emoji_;
-  }
-  return string();
-}
-
-DialogAction::ClickingAnimateEmojiInfo DialogAction::get_clicking_animated_emoji_action_info() const {
-  ClickingAnimateEmojiInfo result;
-  if (type_ == Type::ClickingAnimatedEmoji) {
-    auto pos = emoji_.find('\xFF');
-    CHECK(pos < emoji_.size());
-    result.message_id = progress_;
-    result.emoji = emoji_.substr(0, pos);
-    result.data = emoji_.substr(pos + 1);
-  }
-  return result;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogAction &action) {
-  string_builder << "ChatAction";
-  const char *type = [action_type = action.type_] {
-    switch (action_type) {
-      case DialogAction::Type::Cancel:
-        return "Cancel";
-      case DialogAction::Type::Typing:
-        return "Typing";
-      case DialogAction::Type::RecordingVideo:
-        return "RecordingVideo";
-      case DialogAction::Type::UploadingVideo:
-        return "UploadingVideo";
-      case DialogAction::Type::RecordingVoiceNote:
-        return "RecordingVoiceNote";
-      case DialogAction::Type::UploadingVoiceNote:
-        return "UploadingVoiceNote";
-      case DialogAction::Type::UploadingPhoto:
-        return "UploadingPhoto";
-      case DialogAction::Type::UploadingDocument:
-        return "UploadingDocument";
-      case DialogAction::Type::ChoosingLocation:
-        return "ChoosingLocation";
-      case DialogAction::Type::ChoosingContact:
-        return "ChoosingContact";
-      case DialogAction::Type::StartPlayingGame:
-        return "StartPlayingGame";
-      case DialogAction::Type::RecordingVideoNote:
-        return "RecordingVideoNote";
-      case DialogAction::Type::UploadingVideoNote:
-        return "UploadingVideoNote";
-      case DialogAction::Type::SpeakingInVoiceChat:
-        return "SpeakingInVoiceChat";
-      case DialogAction::Type::ImportingMessages:
-        return "ImportingMessages";
-      case DialogAction::Type::ChoosingSticker:
-        return "ChoosingSticker";
-      case DialogAction::Type::WatchingAnimations:
-        return "WatchingAnimations";
-      case DialogAction::Type::ClickingAnimatedEmoji:
-        return "ClickingAnimatedEmoji";
-      default:
-        UNREACHABLE();
-        return "Cancel";
-    }
-  }();
-  string_builder << type << "Action";
-  if (action.type_ == DialogAction::Type::ClickingAnimatedEmoji) {
-    auto pos = action.emoji_.find('\xFF');
-    CHECK(pos < action.emoji_.size());
-    string_builder << '(' << action.progress_ << ")(" << Slice(action.emoji_).substr(0, pos) << ")("
-                   << Slice(action.emoji_).substr(pos + 1) << ')';
-  } else {
-    if (action.progress_ != 0) {
-      string_builder << '(' << action.progress_ << "%)";
-    }
-    if (!action.emoji_.empty()) {
-      string_builder << '(' << action.emoji_ << ')';
-    }
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogAction.h b/third-party/td/td/td/telegram/DialogAction.h
deleted file mode 100644
index 26bf0c9165..0000000000
--- a/third-party/td/td/td/telegram/DialogAction.h
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class DialogAction {
-  enum class Type : int32 {
-    Cancel,
-    Typing,
-    RecordingVideo,
-    UploadingVideo,
-    RecordingVoiceNote,
-    UploadingVoiceNote,
-    UploadingPhoto,
-    UploadingDocument,
-    ChoosingLocation,
-    ChoosingContact,
-    StartPlayingGame,
-    RecordingVideoNote,
-    UploadingVideoNote,
-    SpeakingInVoiceChat,
-    ImportingMessages,
-    ChoosingSticker,
-    WatchingAnimations,
-    ClickingAnimatedEmoji
-  };
-  Type type_ = Type::Cancel;
-  int32 progress_ = 0;
-  string emoji_;
-
-  DialogAction(Type type, int32 progress);
-
-  void init(Type type);
-
-  void init(Type type, int32 progress);
-
-  void init(Type type, string emoji);
-
-  void init(Type type, int32 message_id, string emoji, const string &data);
-
-  static bool is_valid_emoji(string &emoji);
-
- public:
-  DialogAction() = default;
-
-  explicit DialogAction(td_api::object_ptr<td_api::ChatAction> &&action);
-
-  explicit DialogAction(telegram_api::object_ptr<telegram_api::SendMessageAction> &&action);
-
-  tl_object_ptr<telegram_api::SendMessageAction> get_input_send_message_action() const;
-
-  tl_object_ptr<secret_api::SendMessageAction> get_secret_input_send_message_action() const;
-
-  td_api::object_ptr<td_api::ChatAction> get_chat_action_object() const;
-
-  bool is_canceled_by_message_of_type(MessageContentType message_content_type) const;
-
-  static DialogAction get_uploading_action(MessageContentType message_content_type, int32 progress);
-
-  static DialogAction get_typing_action();
-
-  static DialogAction get_speaking_action();
-
-  int32 get_importing_messages_action_progress() const;
-
-  string get_watching_animations_emoji() const;
-
-  struct ClickingAnimateEmojiInfo {
-    int32 message_id = 0;
-    string emoji;
-    string data;
-  };
-  ClickingAnimateEmojiInfo get_clicking_animated_emoji_action_info() const;
-
-  friend bool operator==(const DialogAction &lhs, const DialogAction &rhs) {
-    return lhs.type_ == rhs.type_ && lhs.progress_ == rhs.progress_ && lhs.emoji_ == rhs.emoji_;
-  }
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogAction &action);
-};
-
-inline bool operator!=(const DialogAction &lhs, const DialogAction &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogAction &action);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogActionBar.cpp b/third-party/td/td/td/telegram/DialogActionBar.cpp
deleted file mode 100644
index b0d53299ad..0000000000
--- a/third-party/td/td/td/telegram/DialogActionBar.cpp
+++ /dev/null
@@ -1,398 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogActionBar.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-unique_ptr<DialogActionBar> DialogActionBar::create_legacy(bool can_report_spam, bool can_add_contact,
-                                                           bool can_block_user, bool can_share_phone_number,
-                                                           bool can_report_location, bool can_unarchive, int32 distance,
-                                                           bool can_invite_members) {
-  auto action_bar = make_unique<DialogActionBar>();
-  action_bar->can_report_spam_ = can_report_spam;
-  action_bar->can_add_contact_ = can_add_contact;
-  action_bar->can_block_user_ = can_block_user;
-  action_bar->can_share_phone_number_ = can_share_phone_number;
-  action_bar->can_report_location_ = can_report_location;
-  action_bar->can_unarchive_ = can_unarchive;
-  action_bar->distance_ = distance >= 0 ? distance : -1;
-  action_bar->can_invite_members_ = can_invite_members;
-  if (action_bar->is_empty()) {
-    return nullptr;
-  }
-  return action_bar;
-}
-
-unique_ptr<DialogActionBar> DialogActionBar::create(
-    telegram_api::object_ptr<telegram_api::peerSettings> peer_settings) {
-  if (peer_settings == nullptr) {
-    return nullptr;
-  }
-
-  auto action_bar = make_unique<DialogActionBar>();
-  action_bar->can_report_spam_ = peer_settings->report_spam_;
-  action_bar->can_add_contact_ = peer_settings->add_contact_;
-  action_bar->can_block_user_ = peer_settings->block_contact_;
-  action_bar->can_share_phone_number_ = peer_settings->share_contact_;
-  action_bar->can_report_location_ = peer_settings->report_geo_;
-  action_bar->can_unarchive_ = peer_settings->autoarchived_;
-  if ((peer_settings->flags_ & telegram_api::peerSettings::GEO_DISTANCE_MASK) != 0 &&
-      peer_settings->geo_distance_ >= 0) {
-    action_bar->distance_ = peer_settings->geo_distance_;
-  }
-  action_bar->can_invite_members_ = peer_settings->invite_members_;
-  action_bar->join_request_dialog_title_ = std::move(peer_settings->request_chat_title_);
-  action_bar->is_join_request_broadcast_ = peer_settings->request_chat_broadcast_;
-  action_bar->join_request_date_ = peer_settings->request_chat_date_;
-  if (!parse_registration_month(action_bar->registration_month_, peer_settings->registration_month_)) {
-    LOG(ERROR) << "Receive invalid registration month " << peer_settings->registration_month_;
-  }
-  if (!parse_country_code(action_bar->phone_country_, peer_settings->phone_country_)) {
-    LOG(ERROR) << "Receive invalid phone number country code " << peer_settings->phone_country_;
-  }
-  action_bar->last_name_change_date_ = max(0, peer_settings->name_change_date_);
-  action_bar->last_photo_change_date_ = max(0, peer_settings->photo_change_date_);
-  if (action_bar->is_empty()) {
-    return nullptr;
-  }
-  return action_bar;
-}
-
-bool DialogActionBar::is_empty() const {
-  return !can_report_spam_ && !can_add_contact_ && !can_block_user_ && !can_share_phone_number_ &&
-         !can_report_location_ && !can_invite_members_ && join_request_dialog_title_.empty();
-}
-
-bool DialogActionBar::parse_registration_month(int32 &registration_month, const string &str) {
-  if (str.empty()) {
-    return true;
-  }
-  if (str.size() != 7u || !is_digit(str[0]) || !is_digit(str[1]) || str[2] != '.' || !is_digit(str[3]) ||
-      !is_digit(str[4]) || !is_digit(str[5]) || !is_digit(str[6])) {
-    return false;
-  }
-  auto month_int = (str[0] - '0') * 10 + (str[1] - '0');
-  auto year_int = (str[3] - '0') * 1000 + (str[4] - '0') * 100 + (str[5] - '0') * 10 + (str[6] - '0');
-  if (month_int < 1 || month_int > 12 || year_int < 2000) {
-    return false;
-  }
-  registration_month = month_int * 10000 + year_int;
-  return true;
-}
-
-bool DialogActionBar::parse_country_code(int32 &country_code, const string &str) {
-  if (str.empty()) {
-    return true;
-  }
-  if (str.size() != 2u || str[0] < 'A' || str[0] > 'Z' || str[1] < 'A' || str[1] > 'Z') {
-    return false;
-  }
-  country_code = str[0] * 256 + str[1];
-  return true;
-}
-
-string DialogActionBar::get_country_code(int32 country) {
-  auto first_char = (country >> 8) & 255;
-  auto second_char = country & 255;
-  if (first_char < 'A' || first_char > 'Z' || second_char < 'A' || second_char > 'Z') {
-    return string();
-  }
-  string result(2, static_cast<char>(first_char));
-  result[1] = static_cast<char>(second_char);
-  return result;
-}
-
-void DialogActionBar::clear_can_block_user() {
-  can_block_user_ = false;
-  registration_month_ = 0;
-  phone_country_ = 0;
-  last_name_change_date_ = 0;
-  last_photo_change_date_ = 0;
-}
-
-void DialogActionBar::fix(Td *td, DialogId dialog_id, bool is_dialog_blocked, bool has_outgoing_messages,
-                          FolderId folder_id) {
-  auto dialog_type = dialog_id.get_type();
-  if (distance_ >= 0) {
-    if (dialog_type != DialogType::User) {
-      LOG(ERROR) << "Receive distance " << distance_ << " to " << dialog_id;
-      distance_ = -1;
-    } else if (has_outgoing_messages) {
-      distance_ = -1;
-    }
-  }
-
-  if (!join_request_dialog_title_.empty()) {
-    if (dialog_type != DialogType::User || join_request_date_ <= 0) {
-      LOG(ERROR) << "Receive join_request_date = " << join_request_date_ << " in " << dialog_id;
-      join_request_dialog_title_.clear();
-      is_join_request_broadcast_ = false;
-      join_request_date_ = 0;
-    } else if (can_report_location_ || can_report_spam_ || can_add_contact_ || can_block_user_ ||
-               can_share_phone_number_ || can_unarchive_ || can_invite_members_) {
-      LOG(ERROR) << "Receive action bar " << can_report_location_ << '/' << can_report_spam_ << '/' << can_add_contact_
-                 << '/' << can_block_user_ << '/' << can_share_phone_number_ << '/' << can_report_location_ << '/'
-                 << can_unarchive_ << '/' << can_invite_members_;
-      can_report_location_ = false;
-      can_report_spam_ = false;
-      can_add_contact_ = false;
-      clear_can_block_user();
-      can_share_phone_number_ = false;
-      can_unarchive_ = false;
-      can_invite_members_ = false;
-      distance_ = -1;
-    } else {
-      // ignore
-      registration_month_ = 0;
-      phone_country_ = 0;
-      last_name_change_date_ = 0;
-      last_photo_change_date_ = 0;
-    }
-  }
-  if ((registration_month_ != 0 || phone_country_ != 0 || last_name_change_date_ != 0 ||
-       last_photo_change_date_ != 0) &&
-      !can_block_user_) {
-    LOG(ERROR) << "Receive account information in the action bar " << can_report_spam_ << '/' << can_add_contact_ << '/'
-               << can_block_user_ << '/' << can_share_phone_number_ << '/' << can_report_location_ << '/'
-               << can_unarchive_ << '/' << can_invite_members_;
-    registration_month_ = 0;
-    phone_country_ = 0;
-    last_name_change_date_ = 0;
-    last_photo_change_date_ = 0;
-  }
-  if (join_request_dialog_title_.empty() && (is_join_request_broadcast_ || join_request_date_ != 0)) {
-    LOG(ERROR) << "Receive join request date = " << join_request_date_ << " and " << is_join_request_broadcast_
-               << " in " << dialog_id;
-    is_join_request_broadcast_ = false;
-    join_request_date_ = 0;
-  }
-  if (can_report_location_) {
-    if (dialog_type != DialogType::Channel) {
-      LOG(ERROR) << "Receive can_report_location in " << dialog_id;
-      can_report_location_ = false;
-    } else if (can_report_spam_ || can_add_contact_ || can_block_user_ || can_share_phone_number_ || can_unarchive_ ||
-               can_invite_members_) {
-      LOG(ERROR) << "Receive action bar " << can_report_spam_ << '/' << can_add_contact_ << '/' << can_block_user_
-                 << '/' << can_share_phone_number_ << '/' << can_report_location_ << '/' << can_unarchive_ << '/'
-                 << can_invite_members_;
-      can_report_spam_ = false;
-      can_add_contact_ = false;
-      clear_can_block_user();
-      can_share_phone_number_ = false;
-      can_unarchive_ = false;
-      can_invite_members_ = false;
-      CHECK(distance_ == -1);
-    }
-  }
-  if (can_invite_members_) {
-    if (dialog_type != DialogType::Chat &&
-        (dialog_type != DialogType::Channel || td->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id()))) {
-      LOG(ERROR) << "Receive can_invite_members in " << dialog_id;
-      can_invite_members_ = false;
-    } else if (can_report_spam_ || can_add_contact_ || can_block_user_ || can_share_phone_number_ || can_unarchive_) {
-      LOG(ERROR) << "Receive action bar " << can_report_spam_ << '/' << can_add_contact_ << '/' << can_block_user_
-                 << '/' << can_share_phone_number_ << '/' << can_unarchive_ << '/' << can_invite_members_;
-      can_report_spam_ = false;
-      can_add_contact_ = false;
-      clear_can_block_user();
-      can_share_phone_number_ = false;
-      can_unarchive_ = false;
-      CHECK(distance_ == -1);
-    }
-  }
-  if (dialog_type == DialogType::User) {
-    auto user_id = dialog_id.get_user_id();
-    bool is_me = user_id == td->user_manager_->get_my_id();
-    bool is_deleted = td->user_manager_->is_user_deleted(user_id);
-    bool is_contact = td->user_manager_->is_user_contact(user_id);
-    if (is_me || is_dialog_blocked) {
-      can_report_spam_ = false;
-      can_unarchive_ = false;
-    }
-    if (is_me || is_dialog_blocked || is_deleted) {
-      can_share_phone_number_ = false;
-    }
-    if (is_me || is_dialog_blocked || is_deleted || is_contact) {
-      clear_can_block_user();
-      can_add_contact_ = false;
-    }
-  }
-  if (folder_id != FolderId::archive()) {
-    can_unarchive_ = false;
-  }
-  if (can_share_phone_number_) {
-    CHECK(!can_report_location_);
-    CHECK(!can_invite_members_);
-    if (dialog_type != DialogType::User) {
-      LOG(ERROR) << "Receive can_share_phone_number in " << dialog_id;
-      can_share_phone_number_ = false;
-    } else if (can_report_spam_ || can_add_contact_ || can_block_user_ || can_unarchive_ || distance_ >= 0) {
-      LOG(ERROR) << "Receive action bar " << can_report_spam_ << '/' << can_add_contact_ << '/' << can_block_user_
-                 << '/' << can_share_phone_number_ << '/' << can_unarchive_ << '/' << distance_;
-      can_report_spam_ = false;
-      can_add_contact_ = false;
-      clear_can_block_user();
-      can_unarchive_ = false;
-    }
-  }
-  if (can_block_user_) {
-    CHECK(!can_report_location_);
-    CHECK(!can_invite_members_);
-    CHECK(!can_share_phone_number_);
-    if (dialog_type != DialogType::User) {
-      LOG(ERROR) << "Receive can_block_user in " << dialog_id;
-      clear_can_block_user();
-    } else if (!can_report_spam_ || !can_add_contact_) {
-      LOG(ERROR) << "Receive action bar " << can_report_spam_ << '/' << can_add_contact_ << '/' << can_block_user_;
-      can_report_spam_ = true;
-      can_add_contact_ = true;
-    }
-  }
-  if (can_add_contact_) {
-    CHECK(!can_report_location_);
-    CHECK(!can_invite_members_);
-    CHECK(!can_share_phone_number_);
-    if (dialog_type != DialogType::User) {
-      LOG(ERROR) << "Receive can_add_contact in " << dialog_id;
-      can_add_contact_ = false;
-    } else if (can_report_spam_ != can_block_user_) {
-      LOG(ERROR) << "Receive action bar " << can_report_spam_ << '/' << can_add_contact_ << '/' << can_block_user_;
-      can_report_spam_ = false;
-      clear_can_block_user();
-      can_unarchive_ = false;
-    }
-  }
-  if (!can_block_user_) {
-    distance_ = -1;
-  }
-  if (!can_report_spam_) {
-    can_unarchive_ = false;
-  }
-}
-
-td_api::object_ptr<td_api::ChatActionBar> DialogActionBar::get_chat_action_bar_object(DialogType dialog_type,
-                                                                                      bool hide_unarchive) const {
-  if (!join_request_dialog_title_.empty()) {
-    CHECK(dialog_type == DialogType::User);
-    CHECK(!can_report_location_ && !can_share_phone_number_ && !can_block_user_ && !can_add_contact_ &&
-          !can_report_spam_ && !can_invite_members_);
-    return td_api::make_object<td_api::chatActionBarJoinRequest>(join_request_dialog_title_, is_join_request_broadcast_,
-                                                                 join_request_date_);
-  }
-  if (can_report_location_) {
-    CHECK(dialog_type == DialogType::Channel);
-    CHECK(!can_share_phone_number_ && !can_block_user_ && !can_add_contact_ && !can_report_spam_ &&
-          !can_invite_members_);
-    return nullptr;
-  }
-  if (can_invite_members_) {
-    CHECK(!can_share_phone_number_ && !can_block_user_ && !can_add_contact_ && !can_report_spam_);
-    return td_api::make_object<td_api::chatActionBarInviteMembers>();
-  }
-  if (can_share_phone_number_) {
-    CHECK(dialog_type == DialogType::User);
-    CHECK(!can_block_user_ && !can_add_contact_ && !can_report_spam_);
-    return td_api::make_object<td_api::chatActionBarSharePhoneNumber>();
-  }
-  if (hide_unarchive) {
-    if (can_add_contact_) {
-      return td_api::make_object<td_api::chatActionBarAddContact>();
-    } else {
-      return nullptr;
-    }
-  }
-  if (can_block_user_) {
-    CHECK(dialog_type == DialogType::User);
-    CHECK(can_report_spam_ && can_add_contact_);
-    td_api::object_ptr<td_api::accountInfo> account_info;
-    if (registration_month_ > 0 || phone_country_ > 0 || last_name_change_date_ > 0 || last_photo_change_date_ > 0) {
-      account_info = td_api::make_object<td_api::accountInfo>(registration_month_ / 10000, registration_month_ % 10000,
-                                                              get_country_code(phone_country_), last_name_change_date_,
-                                                              last_photo_change_date_);
-    }
-    return td_api::make_object<td_api::chatActionBarReportAddBlock>(can_unarchive_, std::move(account_info));
-  }
-  if (can_add_contact_) {
-    CHECK(dialog_type == DialogType::User);
-    CHECK(!can_report_spam_);
-    return td_api::make_object<td_api::chatActionBarAddContact>();
-  }
-  if (can_report_spam_) {
-    return td_api::make_object<td_api::chatActionBarReportSpam>(can_unarchive_);
-  }
-  return nullptr;
-}
-
-bool DialogActionBar::on_dialog_unarchived() {
-  if (!can_unarchive_) {
-    return false;
-  }
-
-  can_unarchive_ = false;
-  can_report_spam_ = false;
-  clear_can_block_user();
-  // keep can_add_contact_
-  return true;
-}
-
-bool DialogActionBar::on_user_contact_added() {
-  if (!can_block_user_ && !can_add_contact_) {
-    return false;
-  }
-
-  clear_can_block_user();
-  can_add_contact_ = false;
-  // keep can_unarchive_
-  distance_ = -1;
-  return true;
-}
-
-bool DialogActionBar::on_user_deleted() {
-  if (join_request_dialog_title_.empty() && !can_share_phone_number_ && !can_block_user_ && !can_add_contact_ &&
-      distance_ < 0) {
-    return false;
-  }
-
-  join_request_dialog_title_.clear();
-  is_join_request_broadcast_ = false;
-  join_request_date_ = 0;
-  can_share_phone_number_ = false;
-  clear_can_block_user();
-  can_add_contact_ = false;
-  distance_ = -1;
-  return true;
-}
-
-bool DialogActionBar::on_outgoing_message() {
-  if (distance_ < 0) {
-    return false;
-  }
-
-  distance_ = -1;
-  return true;
-}
-
-bool operator==(const DialogActionBar &lhs, const DialogActionBar &rhs) {
-  return lhs.can_report_spam_ == rhs.can_report_spam_ && lhs.can_add_contact_ == rhs.can_add_contact_ &&
-         lhs.can_block_user_ == rhs.can_block_user_ && lhs.can_share_phone_number_ == rhs.can_share_phone_number_ &&
-         lhs.can_report_location_ == rhs.can_report_location_ && lhs.can_unarchive_ == rhs.can_unarchive_ &&
-         lhs.distance_ == rhs.distance_ && lhs.can_invite_members_ == rhs.can_invite_members_ &&
-         lhs.join_request_dialog_title_ == rhs.join_request_dialog_title_ &&
-         lhs.is_join_request_broadcast_ == lhs.is_join_request_broadcast_ &&
-         lhs.join_request_date_ == rhs.join_request_date_ && lhs.registration_month_ == rhs.registration_month_ &&
-         lhs.phone_country_ == rhs.phone_country_ && lhs.last_name_change_date_ == rhs.last_name_change_date_ &&
-         lhs.last_photo_change_date_ == rhs.last_photo_change_date_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogActionBar.h b/third-party/td/td/td/telegram/DialogActionBar.h
deleted file mode 100644
index bbad5f6c46..0000000000
--- a/third-party/td/td/td/telegram/DialogActionBar.h
+++ /dev/null
@@ -1,172 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Td;
-
-class DialogActionBar {
-  int32 distance_ = -1;  // distance to the peer
-  int32 join_request_date_ = 0;
-  string join_request_dialog_title_;
-  int32 registration_month_ = 0;
-  int32 phone_country_ = 0;
-  int32 last_name_change_date_ = 0;
-  int32 last_photo_change_date_ = 0;
-
-  bool can_report_spam_ = false;
-  bool can_add_contact_ = false;
-  bool can_block_user_ = false;
-  bool can_share_phone_number_ = false;
-  bool can_report_location_ = false;
-  bool can_unarchive_ = false;
-  bool can_invite_members_ = false;
-  bool is_join_request_broadcast_ = false;
-
-  friend bool operator==(const DialogActionBar &lhs, const DialogActionBar &rhs);
-
-  static bool parse_registration_month(int32 &registration_month, const string &str);
-
-  static bool parse_country_code(int32 &country_code, const string &str);
-
-  static string get_country_code(int32 country);
-
-  void clear_can_block_user();
-
- public:
-  static unique_ptr<DialogActionBar> create_legacy(bool can_report_spam, bool can_add_contact, bool can_block_user,
-                                                   bool can_share_phone_number, bool can_report_location,
-                                                   bool can_unarchive, int32 distance, bool can_invite_members);
-
-  static unique_ptr<DialogActionBar> create(telegram_api::object_ptr<telegram_api::peerSettings> peer_settings);
-
-  bool is_empty() const;
-
-  bool can_report_spam() const {
-    return can_report_spam_;
-  }
-
-  bool can_unarchive() const {
-    return can_unarchive_;
-  }
-
-  td_api::object_ptr<td_api::ChatActionBar> get_chat_action_bar_object(DialogType dialog_type,
-                                                                       bool hide_unarchive) const;
-
-  void fix(Td *td, DialogId dialog_id, bool is_dialog_blocked, bool has_outgoing_messages, FolderId folder_id);
-
-  bool on_dialog_unarchived();
-
-  bool on_user_contact_added();
-
-  bool on_user_deleted();
-
-  bool on_outgoing_message();
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_distance = distance_ >= 0;
-    bool has_join_request = !join_request_dialog_title_.empty();
-    bool has_registration_month = registration_month_ > 0;
-    bool has_phone_country = phone_country_ > 0;
-    bool has_last_name_change_date = last_name_change_date_ > 0;
-    bool has_last_photo_change_date = last_photo_change_date_ > 0;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(can_report_spam_);
-    STORE_FLAG(can_add_contact_);
-    STORE_FLAG(can_block_user_);
-    STORE_FLAG(can_share_phone_number_);
-    STORE_FLAG(can_report_location_);
-    STORE_FLAG(can_unarchive_);
-    STORE_FLAG(can_invite_members_);
-    STORE_FLAG(has_distance);
-    STORE_FLAG(is_join_request_broadcast_);
-    STORE_FLAG(has_join_request);
-    STORE_FLAG(has_registration_month);
-    STORE_FLAG(has_phone_country);
-    STORE_FLAG(has_last_name_change_date);
-    STORE_FLAG(has_last_photo_change_date);
-    END_STORE_FLAGS();
-    if (has_distance) {
-      td::store(distance_, storer);
-    }
-    if (has_join_request) {
-      td::store(join_request_dialog_title_, storer);
-      td::store(join_request_date_, storer);
-    }
-    if (has_registration_month) {
-      td::store(registration_month_, storer);
-    }
-    if (has_phone_country) {
-      td::store(phone_country_, storer);
-    }
-    if (has_last_name_change_date) {
-      td::store(last_name_change_date_, storer);
-    }
-    if (has_last_photo_change_date) {
-      td::store(last_photo_change_date_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_distance;
-    bool has_join_request;
-    bool has_registration_month;
-    bool has_phone_country;
-    bool has_last_name_change_date;
-    bool has_last_photo_change_date;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(can_report_spam_);
-    PARSE_FLAG(can_add_contact_);
-    PARSE_FLAG(can_block_user_);
-    PARSE_FLAG(can_share_phone_number_);
-    PARSE_FLAG(can_report_location_);
-    PARSE_FLAG(can_unarchive_);
-    PARSE_FLAG(can_invite_members_);
-    PARSE_FLAG(has_distance);
-    PARSE_FLAG(is_join_request_broadcast_);
-    PARSE_FLAG(has_join_request);
-    PARSE_FLAG(has_registration_month);
-    PARSE_FLAG(has_phone_country);
-    PARSE_FLAG(has_last_name_change_date);
-    PARSE_FLAG(has_last_photo_change_date);
-    END_PARSE_FLAGS();
-    if (has_distance) {
-      td::parse(distance_, parser);
-    }
-    if (has_join_request) {
-      td::parse(join_request_dialog_title_, parser);
-      td::parse(join_request_date_, parser);
-    }
-    if (has_registration_month) {
-      td::parse(registration_month_, parser);
-    }
-    if (has_phone_country) {
-      td::parse(phone_country_, parser);
-    }
-    if (has_last_name_change_date) {
-      td::parse(last_name_change_date_, parser);
-    }
-    if (has_last_photo_change_date) {
-      td::parse(last_photo_change_date_, parser);
-    }
-  }
-};
-
-bool operator==(const DialogActionBar &lhs, const DialogActionBar &rhs);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogActionManager.cpp b/third-party/td/td/td/telegram/DialogActionManager.cpp
deleted file mode 100644
index c2633e18ae..0000000000
--- a/third-party/td/td/td/telegram/DialogActionManager.cpp
+++ /dev/null
@@ -1,427 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogActionManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BusinessConnectionManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/SecretChatsManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/emoji.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <algorithm>
-
-namespace td {
-
-class SetTypingQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  BusinessConnectionId business_connection_id_;
-  int32 generation_ = 0;
-
- public:
-  explicit SetTypingQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  NetQueryRef send(DialogId dialog_id, tl_object_ptr<telegram_api::InputPeer> &&input_peer,
-                   MessageId top_thread_message_id, BusinessConnectionId business_connection_id,
-                   tl_object_ptr<telegram_api::SendMessageAction> &&action) {
-    dialog_id_ = dialog_id;
-    business_connection_id_ = business_connection_id;
-    CHECK(input_peer != nullptr);
-
-    int32 flags = 0;
-    if (top_thread_message_id.is_valid()) {
-      flags |= telegram_api::messages_setTyping::TOP_MSG_ID_MASK;
-    }
-
-    auto query = G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::messages_setTyping(flags, std::move(input_peer),
-                                         top_thread_message_id.get_server_message_id().get(), std::move(action)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id));
-    query->total_timeout_limit_ = 2;
-    auto result = query.get_weak();
-    generation_ = result.generation();
-    send_query(std::move(query));
-    return result;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setTyping>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    // ignore result
-    promise_.set_value(Unit());
-
-    if (business_connection_id_.is_empty()) {
-      send_closure_later(G()->dialog_action_manager(), &DialogActionManager::after_set_typing_query, dialog_id_,
-                         generation_);
-    }
-  }
-
-  void on_error(Status status) final {
-    if (status.code() == NetQuery::Canceled) {
-      return promise_.set_value(Unit());
-    }
-
-    if (!business_connection_id_.is_valid() &&
-        !td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SetTypingQuery")) {
-      LOG(INFO) << "Receive error for set typing: " << status;
-    }
-    promise_.set_error(std::move(status));
-
-    if (business_connection_id_.is_empty()) {
-      send_closure_later(G()->dialog_action_manager(), &DialogActionManager::after_set_typing_query, dialog_id_,
-                         generation_);
-    }
-  }
-};
-
-DialogActionManager::DialogActionManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  active_dialog_action_timeout_.set_callback(on_active_dialog_action_timeout_callback);
-  active_dialog_action_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-void DialogActionManager::tear_down() {
-  parent_.reset();
-}
-
-void DialogActionManager::on_active_dialog_action_timeout_callback(void *dialog_action_manager_ptr,
-                                                                   int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto dialog_action_manager = static_cast<DialogActionManager *>(dialog_action_manager_ptr);
-  send_closure_later(dialog_action_manager->actor_id(dialog_action_manager),
-                     &DialogActionManager::on_active_dialog_action_timeout, DialogId(dialog_id_int));
-}
-
-void DialogActionManager::on_dialog_action(DialogId dialog_id, MessageId top_thread_message_id,
-                                           DialogId typing_dialog_id, DialogAction action, int32 date,
-                                           MessageContentType message_content_type) {
-  if (td_->auth_manager_->is_bot() || !typing_dialog_id.is_valid()) {
-    return;
-  }
-  if (top_thread_message_id != MessageId() && !top_thread_message_id.is_valid()) {
-    LOG(ERROR) << "Ignore " << action << " in the message thread of " << top_thread_message_id;
-    return;
-  }
-
-  auto dialog_type = dialog_id.get_type();
-  if (action == DialogAction::get_speaking_action()) {
-    if ((dialog_type != DialogType::Chat && dialog_type != DialogType::Channel) || top_thread_message_id.is_valid()) {
-      LOG(ERROR) << "Receive " << action << " in thread of " << top_thread_message_id << " in " << dialog_id;
-      return;
-    }
-    return td_->messages_manager_->on_dialog_speaking_action(dialog_id, typing_dialog_id, date);
-  }
-
-  if (td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return;
-  }
-
-  auto typing_dialog_type = typing_dialog_id.get_type();
-  if (typing_dialog_type != DialogType::User && dialog_type != DialogType::Chat && dialog_type != DialogType::Channel) {
-    LOG(ERROR) << "Ignore " << action << " of " << typing_dialog_id << " in " << dialog_id;
-    return;
-  }
-
-  {
-    auto message_import_progress = action.get_importing_messages_action_progress();
-    if (message_import_progress >= 0) {
-      // TODO
-      return;
-    }
-  }
-
-  {
-    auto clicking_info = action.get_clicking_animated_emoji_action_info();
-    if (!clicking_info.data.empty()) {
-      if (date > G()->unix_time() - 10 && dialog_type == DialogType::User && dialog_id == typing_dialog_id) {
-        td_->messages_manager_->on_message_animated_emoji_clicked(
-            {dialog_id, MessageId(ServerMessageId(clicking_info.message_id))}, std::move(clicking_info.emoji),
-            std::move(clicking_info.data));
-      }
-      return;
-    }
-  }
-
-  {
-    auto emoji = action.get_watching_animations_emoji();
-    if (!emoji.empty() &&
-        !td_->stickers_manager_->is_sent_animated_emoji_click(dialog_id, remove_emoji_modifiers(emoji))) {
-      LOG(DEBUG) << "Ignore unsent " << action;
-      return;
-    }
-  }
-
-  if (!td_->messages_manager_->have_dialog(dialog_id)) {
-    LOG(DEBUG) << "Ignore " << action << " in unknown " << dialog_id;
-    return;
-  }
-
-  if (typing_dialog_type == DialogType::User) {
-    if (!td_->user_manager_->have_min_user(typing_dialog_id.get_user_id())) {
-      LOG(DEBUG) << "Ignore " << action << " of unknown " << typing_dialog_id.get_user_id();
-      return;
-    }
-  } else {
-    if (!td_->dialog_manager_->have_dialog_info_force(typing_dialog_id, "on_dialog_action")) {
-      LOG(DEBUG) << "Ignore " << action << " of unknown " << typing_dialog_id;
-      return;
-    }
-    td_->dialog_manager_->force_create_dialog(typing_dialog_id, "on_dialog_action", true);
-    if (!td_->messages_manager_->have_dialog(typing_dialog_id)) {
-      LOG(ERROR) << "Failed to create typing " << typing_dialog_id;
-      return;
-    }
-  }
-
-  bool is_canceled = action == DialogAction();
-  if ((!is_canceled || message_content_type != MessageContentType::None) && typing_dialog_type == DialogType::User) {
-    td_->user_manager_->on_update_user_local_was_online(typing_dialog_id.get_user_id(), date);
-  }
-
-  if (dialog_type == DialogType::User || dialog_type == DialogType::SecretChat) {
-    CHECK(typing_dialog_type == DialogType::User);
-    auto user_id = typing_dialog_id.get_user_id();
-    if (!td_->user_manager_->is_user_bot(user_id) && !td_->user_manager_->is_user_status_exact(user_id) &&
-        !td_->messages_manager_->is_dialog_opened(dialog_id) && !is_canceled) {
-      return;
-    }
-  }
-
-  if (is_canceled) {
-    // passed top_thread_message_id must be ignored
-    auto actions_it = active_dialog_actions_.find(dialog_id);
-    if (actions_it == active_dialog_actions_.end()) {
-      return;
-    }
-
-    auto &active_actions = actions_it->second;
-    auto it = std::find_if(
-        active_actions.begin(), active_actions.end(),
-        [typing_dialog_id](const ActiveDialogAction &action) { return action.typing_dialog_id == typing_dialog_id; });
-    if (it == active_actions.end()) {
-      return;
-    }
-
-    if (!(typing_dialog_type == DialogType::User && td_->user_manager_->is_user_bot(typing_dialog_id.get_user_id())) &&
-        !it->action.is_canceled_by_message_of_type(message_content_type)) {
-      return;
-    }
-
-    LOG(DEBUG) << "Cancel action of " << typing_dialog_id << " in " << dialog_id;
-    top_thread_message_id = it->top_thread_message_id;
-    active_actions.erase(it);
-    if (active_actions.empty()) {
-      active_dialog_actions_.erase(dialog_id);
-      LOG(DEBUG) << "Cancel action timeout in " << dialog_id;
-      active_dialog_action_timeout_.cancel_timeout(dialog_id.get());
-    }
-  } else {
-    if (date < G()->unix_time() - DIALOG_ACTION_TIMEOUT - 60) {
-      LOG(DEBUG) << "Ignore too old action of " << typing_dialog_id << " in " << dialog_id << " sent at " << date;
-      return;
-    }
-    auto &active_actions = active_dialog_actions_[dialog_id];
-    auto it = std::find_if(
-        active_actions.begin(), active_actions.end(),
-        [typing_dialog_id](const ActiveDialogAction &action) { return action.typing_dialog_id == typing_dialog_id; });
-    MessageId prev_top_thread_message_id;
-    DialogAction prev_action;
-    if (it != active_actions.end()) {
-      LOG(DEBUG) << "Re-add action of " << typing_dialog_id << " in " << dialog_id;
-      prev_top_thread_message_id = it->top_thread_message_id;
-      prev_action = it->action;
-      active_actions.erase(it);
-    } else {
-      LOG(DEBUG) << "Add action of " << typing_dialog_id << " in " << dialog_id;
-    }
-
-    active_actions.emplace_back(top_thread_message_id, typing_dialog_id, action, Time::now());
-    if (top_thread_message_id == prev_top_thread_message_id && action == prev_action) {
-      return;
-    }
-    if (top_thread_message_id != prev_top_thread_message_id && prev_top_thread_message_id.is_valid()) {
-      send_update_chat_action(dialog_id, prev_top_thread_message_id, typing_dialog_id, DialogAction());
-    }
-    if (active_actions.size() == 1u) {
-      LOG(DEBUG) << "Set action timeout in " << dialog_id;
-      active_dialog_action_timeout_.set_timeout_in(dialog_id.get(), DIALOG_ACTION_TIMEOUT);
-    }
-  }
-
-  if (top_thread_message_id.is_valid()) {
-    send_update_chat_action(dialog_id, MessageId(), typing_dialog_id, action);
-  }
-  send_update_chat_action(dialog_id, top_thread_message_id, typing_dialog_id, action);
-}
-
-void DialogActionManager::send_update_chat_action(DialogId dialog_id, MessageId top_thread_message_id,
-                                                  DialogId typing_dialog_id, const DialogAction &action) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  LOG(DEBUG) << "Send " << action << " of " << typing_dialog_id << " in thread of " << top_thread_message_id << " in "
-             << dialog_id;
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatAction>(
-                   td_->dialog_manager_->get_chat_id_object(dialog_id, "updateChatAction"), top_thread_message_id.get(),
-                   get_message_sender_object(td_, typing_dialog_id, "send_update_chat_action"),
-                   action.get_chat_action_object()));
-}
-
-void DialogActionManager::send_dialog_action(DialogId dialog_id, MessageId top_thread_message_id,
-                                             BusinessConnectionId business_connection_id, DialogAction action,
-                                             Promise<Unit> &&promise) {
-  bool as_business = business_connection_id.is_valid();
-  if (as_business) {
-    TRY_STATUS_PROMISE(promise,
-                       td_->business_connection_manager_->check_business_connection(business_connection_id, dialog_id));
-  } else if (!td_->dialog_manager_->have_dialog_force(dialog_id, "send_dialog_action")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (top_thread_message_id != MessageId() &&
-      (!top_thread_message_id.is_valid() || !top_thread_message_id.is_server())) {
-    return promise.set_error(Status::Error(400, "Invalid message thread specified"));
-  }
-
-  if (!as_business && td_->dialog_manager_->is_forum_channel(dialog_id) && !top_thread_message_id.is_valid()) {
-    top_thread_message_id = MessageId(ServerMessageId(1));
-  }
-
-  tl_object_ptr<telegram_api::InputPeer> input_peer;
-  if (action == DialogAction::get_speaking_action()) {
-    if (as_business) {
-      return promise.set_error(Status::Error(400, "Can't use the action"));
-    }
-    input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise.set_error(Status::Error(400, "Have no access to the chat"));
-    }
-  } else if (as_business) {
-    input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Know);
-  } else {
-    if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Write)) {
-      if (td_->auth_manager_->is_bot()) {
-        return promise.set_error(Status::Error(400, "Have no write access to the chat"));
-      }
-      return promise.set_value(Unit());
-    }
-
-    if (td_->dialog_manager_->is_dialog_action_unneeded(dialog_id)) {
-      LOG(INFO) << "Skip unneeded " << action << " in " << dialog_id;
-      return promise.set_value(Unit());
-    }
-
-    input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-  }
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    CHECK(!as_business);
-    send_closure(G()->secret_chats_manager(), &SecretChatsManager::send_message_action, dialog_id.get_secret_chat_id(),
-                 action.get_secret_input_send_message_action());
-    promise.set_value(Unit());
-    return;
-  }
-
-  CHECK(input_peer != nullptr);
-
-  auto new_query_ref = td_->create_handler<SetTypingQuery>(std::move(promise))
-                           ->send(dialog_id, std::move(input_peer), top_thread_message_id, business_connection_id,
-                                  action.get_input_send_message_action());
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto &query_ref = set_typing_query_[dialog_id];
-  if (!query_ref.empty()) {
-    LOG(INFO) << "Cancel previous send chat action query";
-    cancel_query(query_ref);
-  }
-  query_ref = std::move(new_query_ref);
-}
-
-void DialogActionManager::cancel_send_dialog_action_queries(DialogId dialog_id) {
-  auto it = set_typing_query_.find(dialog_id);
-  if (it == set_typing_query_.end()) {
-    return;
-  }
-  if (!it->second.empty()) {
-    cancel_query(it->second);
-  }
-  set_typing_query_.erase(it);
-}
-
-void DialogActionManager::after_set_typing_query(DialogId dialog_id, int32 generation) {
-  auto it = set_typing_query_.find(dialog_id);
-  if (it != set_typing_query_.end() && (!it->second.is_alive() || it->second.generation() == generation)) {
-    set_typing_query_.erase(it);
-  }
-}
-
-void DialogActionManager::on_active_dialog_action_timeout(DialogId dialog_id) {
-  LOG(DEBUG) << "Receive active dialog action timeout in " << dialog_id;
-  auto actions_it = active_dialog_actions_.find(dialog_id);
-  if (actions_it == active_dialog_actions_.end()) {
-    return;
-  }
-  CHECK(!actions_it->second.empty());
-
-  auto now = Time::now();
-  DialogId prev_typing_dialog_id;
-  while (actions_it->second[0].start_time + DIALOG_ACTION_TIMEOUT < now + 0.1) {
-    CHECK(actions_it->second[0].typing_dialog_id != prev_typing_dialog_id);
-    prev_typing_dialog_id = actions_it->second[0].typing_dialog_id;
-    on_dialog_action(dialog_id, actions_it->second[0].top_thread_message_id, actions_it->second[0].typing_dialog_id,
-                     DialogAction(), 0);
-
-    actions_it = active_dialog_actions_.find(dialog_id);
-    if (actions_it == active_dialog_actions_.end()) {
-      return;
-    }
-    CHECK(!actions_it->second.empty());
-  }
-
-  LOG(DEBUG) << "Schedule next action timeout in " << dialog_id;
-  active_dialog_action_timeout_.add_timeout_in(dialog_id.get(),
-                                               actions_it->second[0].start_time + DIALOG_ACTION_TIMEOUT - now);
-}
-
-void DialogActionManager::clear_active_dialog_actions(DialogId dialog_id) {
-  LOG(DEBUG) << "Clear active dialog actions in " << dialog_id;
-  auto actions_it = active_dialog_actions_.find(dialog_id);
-  while (actions_it != active_dialog_actions_.end()) {
-    CHECK(!actions_it->second.empty());
-    on_dialog_action(dialog_id, actions_it->second[0].top_thread_message_id, actions_it->second[0].typing_dialog_id,
-                     DialogAction(), 0);
-    actions_it = active_dialog_actions_.find(dialog_id);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogActionManager.h b/third-party/td/td/td/telegram/DialogActionManager.h
deleted file mode 100644
index eeda0321c3..0000000000
--- a/third-party/td/td/td/telegram/DialogActionManager.h
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/DialogAction.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class DialogActionManager final : public Actor {
- public:
-  DialogActionManager(Td *td, ActorShared<> parent);
-
-  void on_dialog_action(DialogId dialog_id, MessageId top_thread_message_id, DialogId typing_dialog_id,
-                        DialogAction action, int32 date,
-                        MessageContentType message_content_type = MessageContentType::None);
-
-  void send_dialog_action(DialogId dialog_id, MessageId top_thread_message_id,
-                          BusinessConnectionId business_connection_id, DialogAction action, Promise<Unit> &&promise);
-
-  void cancel_send_dialog_action_queries(DialogId dialog_id);
-
-  void after_set_typing_query(DialogId dialog_id, int32 generation);
-
-  void clear_active_dialog_actions(DialogId dialog_id);
-
- private:
-  static constexpr double DIALOG_ACTION_TIMEOUT = 5.5;
-
-  void tear_down() final;
-
-  void send_update_chat_action(DialogId dialog_id, MessageId top_thread_message_id, DialogId typing_dialog_id,
-                               const DialogAction &action);
-
-  static void on_active_dialog_action_timeout_callback(void *dialog_action_manager_ptr, int64 dialog_id_int);
-
-  void on_active_dialog_action_timeout(DialogId dialog_id);
-
-  struct ActiveDialogAction {
-    MessageId top_thread_message_id;
-    DialogId typing_dialog_id;
-    DialogAction action;
-    double start_time;
-
-    ActiveDialogAction(MessageId top_thread_message_id, DialogId typing_dialog_id, DialogAction action,
-                       double start_time)
-        : top_thread_message_id(top_thread_message_id)
-        , typing_dialog_id(typing_dialog_id)
-        , action(std::move(action))
-        , start_time(start_time) {
-    }
-  };
-  FlatHashMap<DialogId, std::vector<ActiveDialogAction>, DialogIdHash> active_dialog_actions_;
-
-  MultiTimeout active_dialog_action_timeout_{"ActiveDialogActionTimeout"};
-
-  FlatHashMap<DialogId, NetQueryRef, DialogIdHash> set_typing_query_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogAdministrator.cpp b/third-party/td/td/td/telegram/DialogAdministrator.cpp
deleted file mode 100644
index ab3141e294..0000000000
--- a/third-party/td/td/td/telegram/DialogAdministrator.cpp
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogAdministrator.h"
-
-#include "td/telegram/UserManager.h"
-
-namespace td {
-
-td_api::object_ptr<td_api::chatAdministrator> DialogAdministrator::get_chat_administrator_object(
-    const UserManager *user_manager) const {
-  CHECK(user_manager != nullptr);
-  CHECK(user_id_.is_valid());
-  return td_api::make_object<td_api::chatAdministrator>(
-      user_manager->get_user_id_object(user_id_, "get_chat_administrator_object"), rank_, is_creator_);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogAdministrator &administrator) {
-  return string_builder << "ChatAdministrator[" << administrator.user_id_ << ", title = " << administrator.rank_
-                        << ", is_owner = " << administrator.is_creator_ << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogAdministrator.h b/third-party/td/td/td/telegram/DialogAdministrator.h
deleted file mode 100644
index 28b827f473..0000000000
--- a/third-party/td/td/td/telegram/DialogAdministrator.h
+++ /dev/null
@@ -1,88 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class UserManager;
-
-class DialogAdministrator {
-  UserId user_id_;
-  string rank_;
-  bool is_creator_ = false;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogAdministrator &administrator);
-
- public:
-  DialogAdministrator() = default;
-
-  DialogAdministrator(UserId user_id, const string &rank, bool is_creator)
-      : user_id_(user_id), rank_(rank), is_creator_(is_creator) {
-  }
-
-  td_api::object_ptr<td_api::chatAdministrator> get_chat_administrator_object(const UserManager *user_manager) const;
-
-  UserId get_user_id() const {
-    return user_id_;
-  }
-
-  const string &get_rank() const {
-    return rank_;
-  }
-
-  bool is_creator() const {
-    return is_creator_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    bool has_rank = !rank_.empty();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_rank);
-    STORE_FLAG(is_creator_);
-    END_STORE_FLAGS();
-    store(user_id_, storer);
-    if (has_rank) {
-      store(rank_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    bool has_rank;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_rank);
-    PARSE_FLAG(is_creator_);
-    END_PARSE_FLAGS();
-    parse(user_id_, parser);
-    if (has_rank) {
-      parse(rank_, parser);
-    }
-  }
-};
-
-inline bool operator==(const DialogAdministrator &lhs, const DialogAdministrator &rhs) {
-  return lhs.get_user_id() == rhs.get_user_id() && lhs.get_rank() == rhs.get_rank() &&
-         lhs.is_creator() == rhs.is_creator();
-}
-
-inline bool operator!=(const DialogAdministrator &lhs, const DialogAdministrator &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogAdministrator &administrator);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogBoostLinkInfo.h b/third-party/td/td/td/telegram/DialogBoostLinkInfo.h
deleted file mode 100644
index d3c4161bcd..0000000000
--- a/third-party/td/td/td/telegram/DialogBoostLinkInfo.h
+++ /dev/null
@@ -1,21 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct DialogBoostLinkInfo {
-  string username;
-  // or
-  ChannelId channel_id;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogDate.h b/third-party/td/td/td/telegram/DialogDate.h
deleted file mode 100644
index 9bbc37c170..0000000000
--- a/third-party/td/td/td/telegram/DialogDate.h
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/ServerMessageId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <limits>
-
-namespace td {
-
-class DialogDate {
-  int64 order;
-  DialogId dialog_id;
-
- public:
-  DialogDate(int64 order, DialogId dialog_id) : order(order), dialog_id(dialog_id) {
-  }
-
-  bool operator<(const DialogDate &other) const {
-    return order > other.order || (order == other.order && dialog_id.get() > other.dialog_id.get());
-  }
-
-  bool operator<=(const DialogDate &other) const {
-    return order >= other.order && (order != other.order || dialog_id.get() >= other.dialog_id.get());
-  }
-
-  bool operator==(const DialogDate &other) const {
-    return order == other.order && dialog_id == other.dialog_id;
-  }
-
-  bool operator!=(const DialogDate &other) const {
-    return order != other.order || dialog_id != other.dialog_id;
-  }
-
-  int64 get_order() const {
-    return order;
-  }
-  DialogId get_dialog_id() const {
-    return dialog_id;
-  }
-  int32 get_date() const {
-    return static_cast<int32>((order >> 32) & 0x7FFFFFFF);
-  }
-  MessageId get_message_id() const {
-    return MessageId(ServerMessageId(static_cast<int32>(order & 0x7FFFFFFF)));
-  }
-};
-
-const DialogDate MIN_DIALOG_DATE(std::numeric_limits<int64>::max(), DialogId());
-const DialogDate MAX_DIALOG_DATE(0, DialogId());
-const int64 DEFAULT_ORDER = -1;
-
-struct DialogDateHash {
-  uint32 operator()(const DialogDate &dialog_date) const {
-    return combine_hashes(Hash<int64>()(dialog_date.get_order()), DialogIdHash()(dialog_date.get_dialog_id()));
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, DialogDate dialog_date) {
-  return string_builder << "[" << dialog_date.get_order() << ", " << dialog_date.get_dialog_id().get() << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogDb.cpp b/third-party/td/td/td/telegram/DialogDb.cpp
deleted file mode 100644
index 6a719e49ae..0000000000
--- a/third-party/td/td/td/telegram/DialogDb.cpp
+++ /dev/null
@@ -1,489 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogDb.h"
-
-#include "td/telegram/Version.h"
-
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteStatement.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/SchedulerLocalStorage.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-namespace td {
-// NB: must happen inside a transaction
-Status init_dialog_db(SqliteDb &db, int32 version, KeyValueSyncInterface &binlog_pmc, bool &was_created) {
-  LOG(INFO) << "Init dialog database " << tag("version", version);
-  was_created = false;
-
-  // Check if database exists
-  TRY_RESULT(has_table, db.has_table("dialogs"));
-  if (!has_table) {
-    version = 0;
-  } else if (version > current_db_version()) {
-    TRY_STATUS(drop_dialog_db(db, version));
-    version = 0;
-  }
-
-  auto create_notification_group_table = [&db] {
-    return db.exec(
-        "CREATE TABLE IF NOT EXISTS notification_groups (notification_group_id INT4 PRIMARY KEY, dialog_id "
-        "INT8, last_notification_date INT4)");
-  };
-
-  auto create_last_notification_date_index = [&db] {
-    return db.exec(
-        "CREATE INDEX IF NOT EXISTS notification_group_by_last_notification_date ON notification_groups "
-        "(last_notification_date, dialog_id, notification_group_id) WHERE last_notification_date IS NOT NULL");
-  };
-
-  auto add_dialogs_in_folder_index = [&db] {
-    return db.exec(
-        "CREATE INDEX IF NOT EXISTS dialog_in_folder_by_dialog_order ON dialogs (folder_id, dialog_order, dialog_id) "
-        "WHERE folder_id IS NOT NULL");
-  };
-
-  if (version == 0) {
-    LOG(INFO) << "Create new dialog database";
-    was_created = true;
-    TRY_STATUS(
-        db.exec("CREATE TABLE IF NOT EXISTS dialogs (dialog_id INT8 PRIMARY KEY, dialog_order INT8, data BLOB, "
-                "folder_id INT4)"));
-    TRY_STATUS(create_notification_group_table());
-    TRY_STATUS(create_last_notification_date_index());
-    TRY_STATUS(add_dialogs_in_folder_index());
-    version = current_db_version();
-  }
-  if (version < static_cast<int32>(DbVersion::AddNotificationsSupport)) {
-    TRY_STATUS(create_notification_group_table());
-    TRY_STATUS(create_last_notification_date_index());
-  }
-  if (version < static_cast<int32>(DbVersion::AddFolders)) {
-    TRY_STATUS(db.exec("DROP INDEX IF EXISTS dialog_by_dialog_order"));
-    TRY_STATUS(db.exec("ALTER TABLE dialogs ADD COLUMN folder_id INT4"));
-    TRY_STATUS(add_dialogs_in_folder_index());
-    TRY_STATUS(db.exec("UPDATE dialogs SET folder_id = 0 WHERE dialog_id < -1500000000000 AND dialog_order > 0"));
-  }
-  if (version < static_cast<int32>(DbVersion::StorePinnedDialogsInBinlog)) {
-    // 9221294780217032704 == get_dialog_order(Auto(), MIN_PINNED_DIALOG_DATE - 1)
-    TRY_RESULT(get_pinned_dialogs_stmt,
-               db.get_statement("SELECT dialog_id FROM dialogs WHERE folder_id = ?1 AND dialog_order > "
-                                "9221294780217032704 ORDER BY dialog_order DESC, dialog_id DESC"));
-    for (auto folder_id = 0; folder_id < 2; folder_id++) {
-      vector<string> pinned_dialog_ids;
-      TRY_STATUS(get_pinned_dialogs_stmt.bind_int32(1, folder_id));
-      TRY_STATUS(get_pinned_dialogs_stmt.step());
-      while (get_pinned_dialogs_stmt.has_row()) {
-        pinned_dialog_ids.push_back(PSTRING() << get_pinned_dialogs_stmt.view_int64(0));
-        TRY_STATUS(get_pinned_dialogs_stmt.step());
-      }
-      get_pinned_dialogs_stmt.reset();
-
-      binlog_pmc.set(PSTRING() << "pinned_dialog_ids" << folder_id, implode(pinned_dialog_ids, ','));
-    }
-  }
-
-  return Status::OK();
-}
-
-// NB: must happen inside a transaction
-Status drop_dialog_db(SqliteDb &db, int version) {
-  if (version != 0) {
-    LOG(WARNING) << "Drop chat database " << tag("version", version) << tag("current_db_version", current_db_version());
-  }
-  auto status = db.exec("DROP TABLE IF EXISTS dialogs");
-  TRY_STATUS(db.exec("DROP TABLE IF EXISTS notification_groups"));
-  return status;
-}
-
-class DialogDbImpl final : public DialogDbSyncInterface {
- public:
-  explicit DialogDbImpl(SqliteDb db) : db_(std::move(db)) {
-    init().ensure();
-  }
-
-  Status init() {
-    TRY_RESULT_ASSIGN(add_dialog_stmt_, db_.get_statement("INSERT OR REPLACE INTO dialogs VALUES(?1, ?2, ?3, ?4)"));
-    TRY_RESULT_ASSIGN(add_notification_group_stmt_,
-                      db_.get_statement("INSERT OR REPLACE INTO notification_groups VALUES(?1, ?2, ?3)"));
-    TRY_RESULT_ASSIGN(delete_notification_group_stmt_,
-                      db_.get_statement("DELETE FROM notification_groups WHERE notification_group_id = ?1"));
-    TRY_RESULT_ASSIGN(get_dialog_stmt_, db_.get_statement("SELECT data FROM dialogs WHERE dialog_id = ?1"));
-    TRY_RESULT_ASSIGN(
-        get_dialogs_stmt_,
-        db_.get_statement("SELECT data, dialog_id, dialog_order FROM dialogs WHERE "
-                          "folder_id = ?1 AND (dialog_order < ?2 OR (dialog_order = ?2 AND dialog_id < ?3)) ORDER "
-                          "BY dialog_order DESC, dialog_id DESC LIMIT ?4"));
-    TRY_RESULT_ASSIGN(
-        get_notification_groups_by_last_notification_date_stmt_,
-        db_.get_statement("SELECT notification_group_id, dialog_id, last_notification_date FROM notification_groups "
-                          "WHERE last_notification_date < ?1 OR (last_notification_date = ?1 "
-                          "AND (dialog_id < ?2 OR (dialog_id = ?2 AND notification_group_id < ?3))) ORDER BY "
-                          "last_notification_date DESC, dialog_id DESC LIMIT ?4"));
-    //                          "WHERE (last_notification_date, dialog_id, notification_group_id) < (?1, ?2, ?3) ORDER BY "
-    //                          "last_notification_date DESC, dialog_id DESC, notification_group_id DESC LIMIT ?4"));
-    TRY_RESULT_ASSIGN(
-        get_notification_group_stmt_,
-        db_.get_statement(
-            "SELECT dialog_id, last_notification_date FROM notification_groups WHERE notification_group_id = ?1"));
-    TRY_RESULT_ASSIGN(
-        get_secret_chat_count_stmt_,
-        db_.get_statement(
-            "SELECT COUNT(*) FROM dialogs WHERE folder_id = ?1 AND dialog_order > 0 AND dialog_id < -1500000000000"));
-
-    // LOG(ERROR) << get_dialog_stmt_.explain().ok();
-    // LOG(ERROR) << get_dialogs_stmt_.explain().ok();
-    // LOG(ERROR) << get_notification_groups_by_last_notification_date_stmt_.explain().ok();
-    // LOG(ERROR) << get_notification_group_stmt_.explain().ok();
-    // LOG(FATAL) << "EXPLAINED";
-
-    return Status::OK();
-  }
-
-  void add_dialog(DialogId dialog_id, FolderId folder_id, int64 order, BufferSlice data,
-                  vector<NotificationGroupKey> notification_groups) final {
-    SCOPE_EXIT {
-      add_dialog_stmt_.reset();
-    };
-    add_dialog_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    add_dialog_stmt_.bind_int64(2, order).ensure();
-    add_dialog_stmt_.bind_blob(3, data.as_slice()).ensure();
-    if (order > 0) {
-      add_dialog_stmt_.bind_int32(4, folder_id.get()).ensure();
-    } else {
-      add_dialog_stmt_.bind_null(4).ensure();
-    }
-
-    add_dialog_stmt_.step().ensure();
-
-    for (auto &to_add : notification_groups) {
-      if (to_add.dialog_id.is_valid()) {
-        SCOPE_EXIT {
-          add_notification_group_stmt_.reset();
-        };
-        add_notification_group_stmt_.bind_int32(1, to_add.group_id.get()).ensure();
-        add_notification_group_stmt_.bind_int64(2, to_add.dialog_id.get()).ensure();
-        if (to_add.last_notification_date != 0) {
-          add_notification_group_stmt_.bind_int32(3, to_add.last_notification_date).ensure();
-        } else {
-          add_notification_group_stmt_.bind_null(3).ensure();
-        }
-        add_notification_group_stmt_.step().ensure();
-      } else {
-        SCOPE_EXIT {
-          delete_notification_group_stmt_.reset();
-        };
-        delete_notification_group_stmt_.bind_int32(1, to_add.group_id.get()).ensure();
-        delete_notification_group_stmt_.step().ensure();
-      }
-    }
-  }
-
-  Result<BufferSlice> get_dialog(DialogId dialog_id) final {
-    SCOPE_EXIT {
-      get_dialog_stmt_.reset();
-    };
-
-    get_dialog_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    TRY_STATUS(get_dialog_stmt_.step());
-    if (!get_dialog_stmt_.has_row()) {
-      return Status::Error("Not found");
-    }
-    return BufferSlice(get_dialog_stmt_.view_blob(0));
-  }
-
-  Result<NotificationGroupKey> get_notification_group(NotificationGroupId notification_group_id) final {
-    SCOPE_EXIT {
-      get_notification_group_stmt_.reset();
-    };
-    get_notification_group_stmt_.bind_int32(1, notification_group_id.get()).ensure();
-    TRY_STATUS(get_notification_group_stmt_.step());
-    if (!get_notification_group_stmt_.has_row()) {
-      return Status::Error("Not found");
-    }
-    return NotificationGroupKey(notification_group_id, DialogId(get_notification_group_stmt_.view_int64(0)),
-                                get_last_notification_date(get_notification_group_stmt_, 1));
-  }
-
-  int32 get_secret_chat_count(FolderId folder_id) final {
-    SCOPE_EXIT {
-      get_secret_chat_count_stmt_.reset();
-    };
-    get_secret_chat_count_stmt_.bind_int32(1, folder_id.get()).ensure();
-    get_secret_chat_count_stmt_.step().ensure();
-    CHECK(get_secret_chat_count_stmt_.has_row());
-    return get_secret_chat_count_stmt_.view_int32(0);
-  }
-
-  DialogDbGetDialogsResult get_dialogs(FolderId folder_id, int64 order, DialogId dialog_id, int32 limit) final {
-    SCOPE_EXIT {
-      get_dialogs_stmt_.reset();
-    };
-
-    get_dialogs_stmt_.bind_int32(1, folder_id.get()).ensure();
-    get_dialogs_stmt_.bind_int64(2, order).ensure();
-    get_dialogs_stmt_.bind_int64(3, dialog_id.get()).ensure();
-    get_dialogs_stmt_.bind_int32(4, limit).ensure();
-
-    DialogDbGetDialogsResult result;
-    result.next_dialog_id = dialog_id;
-    result.next_order = order;
-    get_dialogs_stmt_.step().ensure();
-    while (get_dialogs_stmt_.has_row()) {
-      BufferSlice data(get_dialogs_stmt_.view_blob(0));
-      result.next_dialog_id = DialogId(get_dialogs_stmt_.view_int64(1));
-      result.next_order = get_dialogs_stmt_.view_int64(2);
-      LOG(INFO) << "Load " << result.next_dialog_id << " with order " << result.next_order;
-      result.dialogs.emplace_back(std::move(data));
-      get_dialogs_stmt_.step().ensure();
-    }
-
-    return result;
-  }
-
-  vector<NotificationGroupKey> get_notification_groups_by_last_notification_date(
-      NotificationGroupKey notification_group_key, int32 limit) final {
-    auto &stmt = get_notification_groups_by_last_notification_date_stmt_;
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-
-    stmt.bind_int32(1, notification_group_key.last_notification_date).ensure();
-    stmt.bind_int64(2, notification_group_key.dialog_id.get()).ensure();
-    stmt.bind_int32(3, notification_group_key.group_id.get()).ensure();
-    stmt.bind_int32(4, limit).ensure();
-
-    vector<NotificationGroupKey> notification_groups;
-    stmt.step().ensure();
-    while (stmt.has_row()) {
-      notification_groups.emplace_back(NotificationGroupId(stmt.view_int32(0)), DialogId(stmt.view_int64(1)),
-                                       get_last_notification_date(stmt, 2));
-      stmt.step().ensure();
-    }
-
-    return notification_groups;
-  }
-
-  Status begin_read_transaction() final {
-    return db_.begin_read_transaction();
-  }
-  Status begin_write_transaction() final {
-    return db_.begin_write_transaction();
-  }
-  Status commit_transaction() final {
-    return db_.commit_transaction();
-  }
-
- private:
-  SqliteDb db_;
-
-  SqliteStatement add_dialog_stmt_;
-  SqliteStatement add_notification_group_stmt_;
-  SqliteStatement delete_notification_group_stmt_;
-  SqliteStatement get_dialog_stmt_;
-  SqliteStatement get_dialogs_stmt_;
-  SqliteStatement get_notification_groups_by_last_notification_date_stmt_;
-  SqliteStatement get_notification_group_stmt_;
-  SqliteStatement get_secret_chat_count_stmt_;
-
-  static int32 get_last_notification_date(SqliteStatement &stmt, int id) {
-    if (stmt.view_datatype(id) == SqliteStatement::Datatype::Null) {
-      return 0;
-    }
-    return stmt.view_int32(id);
-  }
-};
-
-std::shared_ptr<DialogDbSyncSafeInterface> create_dialog_db_sync(
-    std::shared_ptr<SqliteConnectionSafe> sqlite_connection) {
-  class DialogDbSyncSafe final : public DialogDbSyncSafeInterface {
-   public:
-    explicit DialogDbSyncSafe(std::shared_ptr<SqliteConnectionSafe> sqlite_connection)
-        : lsls_db_([safe_connection = std::move(sqlite_connection)] {
-          return make_unique<DialogDbImpl>(safe_connection->get().clone());
-        }) {
-    }
-    DialogDbSyncInterface &get() final {
-      return *lsls_db_.get();
-    }
-
-   private:
-    LazySchedulerLocalStorage<unique_ptr<DialogDbSyncInterface>> lsls_db_;
-  };
-  return std::make_shared<DialogDbSyncSafe>(std::move(sqlite_connection));
-}
-
-class DialogDbAsync final : public DialogDbAsyncInterface {
- public:
-  DialogDbAsync(std::shared_ptr<DialogDbSyncSafeInterface> sync_db, int32 scheduler_id) {
-    impl_ = create_actor_on_scheduler<Impl>("DialogDbActor", scheduler_id, std::move(sync_db));
-  }
-
-  void add_dialog(DialogId dialog_id, FolderId folder_id, int64 order, BufferSlice data,
-                  vector<NotificationGroupKey> notification_groups, Promise<Unit> promise) final {
-    send_closure(impl_, &Impl::add_dialog, dialog_id, folder_id, order, std::move(data), std::move(notification_groups),
-                 std::move(promise));
-  }
-
-  void get_notification_groups_by_last_notification_date(NotificationGroupKey notification_group_key, int32 limit,
-                                                         Promise<vector<NotificationGroupKey>> promise) final {
-    send_closure(impl_, &Impl::get_notification_groups_by_last_notification_date, notification_group_key, limit,
-                 std::move(promise));
-  }
-
-  void get_notification_group(NotificationGroupId notification_group_id, Promise<NotificationGroupKey> promise) final {
-    send_closure(impl_, &Impl::get_notification_group, notification_group_id, std::move(promise));
-  }
-
-  void get_secret_chat_count(FolderId folder_id, Promise<int32> promise) final {
-    send_closure(impl_, &Impl::get_secret_chat_count, folder_id, std::move(promise));
-  }
-
-  void get_dialog(DialogId dialog_id, Promise<BufferSlice> promise) final {
-    send_closure_later(impl_, &Impl::get_dialog, dialog_id, std::move(promise));
-  }
-
-  void get_dialogs(FolderId folder_id, int64 order, DialogId dialog_id, int32 limit,
-                   Promise<DialogDbGetDialogsResult> promise) final {
-    send_closure_later(impl_, &Impl::get_dialogs, folder_id, order, dialog_id, limit, std::move(promise));
-  }
-
-  void close(Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::close, std::move(promise));
-  }
-
-  void force_flush() final {
-    send_closure_later(impl_, &Impl::force_flush);
-  }
-
- private:
-  class Impl final : public Actor {
-   public:
-    explicit Impl(std::shared_ptr<DialogDbSyncSafeInterface> sync_db_safe) : sync_db_safe_(std::move(sync_db_safe)) {
-    }
-
-    void add_dialog(DialogId dialog_id, FolderId folder_id, int64 order, BufferSlice data,
-                    vector<NotificationGroupKey> notification_groups, Promise<Unit> promise) {
-      add_write_query([this, dialog_id, folder_id, order, promise = std::move(promise), data = std::move(data),
-                       notification_groups = std::move(notification_groups)](Unit) mutable {
-        sync_db_->add_dialog(dialog_id, folder_id, order, std::move(data), std::move(notification_groups));
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void on_write_result(Promise<Unit> &&promise) {
-      // We are inside a transaction and don't know how to handle errors
-      finished_writes_.push_back(std::move(promise));
-    }
-
-    void get_notification_groups_by_last_notification_date(NotificationGroupKey notification_group_key, int32 limit,
-                                                           Promise<vector<NotificationGroupKey>> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_notification_groups_by_last_notification_date(notification_group_key, limit));
-    }
-
-    void get_notification_group(NotificationGroupId notification_group_id, Promise<NotificationGroupKey> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_notification_group(notification_group_id));
-    }
-
-    void get_secret_chat_count(FolderId folder_id, Promise<int32> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_secret_chat_count(folder_id));
-    }
-
-    void get_dialog(DialogId dialog_id, Promise<BufferSlice> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_dialog(dialog_id));
-    }
-
-    void get_dialogs(FolderId folder_id, int64 order, DialogId dialog_id, int32 limit,
-                     Promise<DialogDbGetDialogsResult> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_dialogs(folder_id, order, dialog_id, limit));
-    }
-
-    void close(Promise<Unit> promise) {
-      do_flush();
-      sync_db_safe_.reset();
-      sync_db_ = nullptr;
-      promise.set_value(Unit());
-      stop();
-    }
-
-    void force_flush() {
-      do_flush();
-      LOG(INFO) << "DialogDb flushed";
-    }
-
-   private:
-    std::shared_ptr<DialogDbSyncSafeInterface> sync_db_safe_;
-    DialogDbSyncInterface *sync_db_ = nullptr;
-
-    static constexpr size_t MAX_PENDING_QUERIES_COUNT{50};
-    static constexpr double MAX_PENDING_QUERIES_DELAY{0.01};
-
-    //NB: order is important, destructor of pending_writes_ will change finished_writes_
-    vector<Promise<Unit>> finished_writes_;
-    vector<Promise<Unit>> pending_writes_;  // TODO use Action
-    double wakeup_at_ = 0;
-
-    template <class F>
-    void add_write_query(F &&f) {
-      pending_writes_.push_back(PromiseCreator::lambda(std::forward<F>(f)));
-      if (pending_writes_.size() > MAX_PENDING_QUERIES_COUNT) {
-        do_flush();
-        wakeup_at_ = 0;
-      } else if (wakeup_at_ == 0) {
-        wakeup_at_ = Time::now_cached() + MAX_PENDING_QUERIES_DELAY;
-      }
-      if (wakeup_at_ != 0) {
-        set_timeout_at(wakeup_at_);
-      }
-    }
-
-    void add_read_query() {
-      do_flush();
-    }
-
-    void do_flush() {
-      if (pending_writes_.empty()) {
-        return;
-      }
-      sync_db_->begin_write_transaction().ensure();
-      set_promises(pending_writes_);
-      sync_db_->commit_transaction().ensure();
-      set_promises(finished_writes_);
-      cancel_timeout();
-    }
-
-    void timeout_expired() final {
-      do_flush();
-    }
-
-    void start_up() final {
-      sync_db_ = &sync_db_safe_->get();
-    }
-  };
-  ActorOwn<Impl> impl_;
-};
-
-std::shared_ptr<DialogDbAsyncInterface> create_dialog_db_async(std::shared_ptr<DialogDbSyncSafeInterface> sync_db,
-                                                               int32 scheduler_id) {
-  return std::make_shared<DialogDbAsync>(std::move(sync_db), scheduler_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogDb.h b/third-party/td/td/td/telegram/DialogDb.h
deleted file mode 100644
index 46c4cf9cb6..0000000000
--- a/third-party/td/td/td/telegram/DialogDb.h
+++ /dev/null
@@ -1,110 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/NotificationGroupId.h"
-#include "td/telegram/NotificationGroupKey.h"
-
-#include "td/db/KeyValueSyncInterface.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class SqliteConnectionSafe;
-class SqliteDb;
-
-struct DialogDbGetDialogsResult {
-  vector<BufferSlice> dialogs;
-  int64 next_order = 0;
-  DialogId next_dialog_id;
-};
-
-class DialogDbSyncInterface {
- public:
-  DialogDbSyncInterface() = default;
-  DialogDbSyncInterface(const DialogDbSyncInterface &) = delete;
-  DialogDbSyncInterface &operator=(const DialogDbSyncInterface &) = delete;
-  virtual ~DialogDbSyncInterface() = default;
-
-  virtual void add_dialog(DialogId dialog_id, FolderId folder_id, int64 order, BufferSlice data,
-                          vector<NotificationGroupKey> notification_groups) = 0;
-
-  virtual Result<BufferSlice> get_dialog(DialogId dialog_id) = 0;
-
-  virtual DialogDbGetDialogsResult get_dialogs(FolderId folder_id, int64 order, DialogId dialog_id, int32 limit) = 0;
-
-  virtual vector<NotificationGroupKey> get_notification_groups_by_last_notification_date(
-      NotificationGroupKey notification_group_key, int32 limit) = 0;
-
-  virtual Result<NotificationGroupKey> get_notification_group(NotificationGroupId notification_group_id) = 0;
-
-  virtual int32 get_secret_chat_count(FolderId folder_id) = 0;
-
-  virtual Status begin_read_transaction() = 0;
-  virtual Status begin_write_transaction() = 0;
-  virtual Status commit_transaction() = 0;
-};
-
-class DialogDbSyncSafeInterface {
- public:
-  DialogDbSyncSafeInterface() = default;
-  DialogDbSyncSafeInterface(const DialogDbSyncSafeInterface &) = delete;
-  DialogDbSyncSafeInterface &operator=(const DialogDbSyncSafeInterface &) = delete;
-  virtual ~DialogDbSyncSafeInterface() = default;
-
-  virtual DialogDbSyncInterface &get() = 0;
-};
-
-class DialogDbAsyncInterface {
- public:
-  DialogDbAsyncInterface() = default;
-  DialogDbAsyncInterface(const DialogDbAsyncInterface &) = delete;
-  DialogDbAsyncInterface &operator=(const DialogDbAsyncInterface &) = delete;
-  virtual ~DialogDbAsyncInterface() = default;
-
-  virtual void add_dialog(DialogId dialog_id, FolderId folder_id, int64 order, BufferSlice data,
-                          vector<NotificationGroupKey> notification_groups, Promise<Unit> promise) = 0;
-
-  virtual void get_dialog(DialogId dialog_id, Promise<BufferSlice> promise) = 0;
-
-  virtual void get_dialogs(FolderId folder_id, int64 order, DialogId dialog_id, int32 limit,
-                           Promise<DialogDbGetDialogsResult> promise) = 0;
-
-  virtual void get_notification_groups_by_last_notification_date(NotificationGroupKey notification_group_key,
-                                                                 int32 limit,
-                                                                 Promise<vector<NotificationGroupKey>> promise) = 0;
-
-  virtual void get_notification_group(NotificationGroupId notification_group_id,
-                                      Promise<NotificationGroupKey> promise) = 0;
-
-  virtual void get_secret_chat_count(FolderId folder_id, Promise<int32> promise) = 0;
-
-  virtual void close(Promise<Unit> promise) = 0;
-
-  virtual void force_flush() = 0;
-};
-
-Status init_dialog_db(SqliteDb &db, int version, KeyValueSyncInterface &binlog_pmc,
-                      bool &was_created) TD_WARN_UNUSED_RESULT;
-Status drop_dialog_db(SqliteDb &db, int version) TD_WARN_UNUSED_RESULT;
-
-std::shared_ptr<DialogDbSyncSafeInterface> create_dialog_db_sync(
-    std::shared_ptr<SqliteConnectionSafe> sqlite_connection);
-
-std::shared_ptr<DialogDbAsyncInterface> create_dialog_db_async(std::shared_ptr<DialogDbSyncSafeInterface> sync_db,
-                                                               int32 scheduler_id = -1);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogEventLog.cpp b/third-party/td/td/td/telegram/DialogEventLog.cpp
deleted file mode 100644
index a412c6dee4..0000000000
--- a/third-party/td/td/td/telegram/DialogEventLog.cpp
+++ /dev/null
@@ -1,635 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogEventLog.h"
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/BackgroundInfo.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ChatReactions.h"
-#include "td/telegram/DialogInviteLink.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/EmojiStatus.h"
-#include "td/telegram/ForumTopicInfo.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/GroupCallParticipant.h"
-#include "td/telegram/InputGroupCallId.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/MessageTtl.h"
-#include "td/telegram/PeerColor.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-static td_api::object_ptr<td_api::ChatEventAction> get_chat_event_action_object(
-    Td *td, ChannelId channel_id, tl_object_ptr<telegram_api::ChannelAdminLogEventAction> &&action_ptr,
-    DialogId &actor_dialog_id) {
-  CHECK(action_ptr != nullptr);
-  switch (action_ptr->get_id()) {
-    case telegram_api::channelAdminLogEventActionParticipantJoin::ID:
-      return td_api::make_object<td_api::chatEventMemberJoined>();
-    case telegram_api::channelAdminLogEventActionParticipantJoinByInvite::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantJoinByInvite>(action_ptr);
-      DialogInviteLink invite_link(std::move(action->invite_), true, false,
-                                   "channelAdminLogEventActionParticipantJoinByInvite");
-      if (!invite_link.is_valid()) {
-        LOG(ERROR) << "Wrong invite link: " << invite_link;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventMemberJoinedByInviteLink>(
-          invite_link.get_chat_invite_link_object(td->user_manager_.get()), action->via_chatlist_);
-    }
-    case telegram_api::channelAdminLogEventActionParticipantJoinByRequest::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantJoinByRequest>(action_ptr);
-      DialogInviteLink invite_link(std::move(action->invite_), true, true,
-                                   "channelAdminLogEventActionParticipantJoinByRequest");
-      UserId approver_user_id(action->approved_by_);
-      if (!approver_user_id.is_valid()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventMemberJoinedByRequest>(
-          td->user_manager_->get_user_id_object(approver_user_id, "chatEventMemberJoinedByRequest"),
-          invite_link.get_chat_invite_link_object(td->user_manager_.get()));
-    }
-    case telegram_api::channelAdminLogEventActionParticipantLeave::ID:
-      return td_api::make_object<td_api::chatEventMemberLeft>();
-    case telegram_api::channelAdminLogEventActionParticipantInvite::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantInvite>(action_ptr);
-      DialogParticipant dialog_participant(std::move(action->participant_),
-                                           td->chat_manager_->get_channel_type(channel_id));
-      if (!dialog_participant.is_valid() || dialog_participant.dialog_id_.get_type() != DialogType::User) {
-        LOG(ERROR) << "Wrong invite: " << dialog_participant;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventMemberInvited>(
-          td->user_manager_->get_user_id_object(dialog_participant.dialog_id_.get_user_id(), "chatEventMemberInvited"),
-          dialog_participant.status_.get_chat_member_status_object());
-    }
-    case telegram_api::channelAdminLogEventActionParticipantToggleBan::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantToggleBan>(action_ptr);
-      auto channel_type = td->chat_manager_->get_channel_type(channel_id);
-      DialogParticipant old_dialog_participant(std::move(action->prev_participant_), channel_type);
-      DialogParticipant new_dialog_participant(std::move(action->new_participant_), channel_type);
-      if (old_dialog_participant.dialog_id_ != new_dialog_participant.dialog_id_) {
-        LOG(ERROR) << old_dialog_participant.dialog_id_ << " VS " << new_dialog_participant.dialog_id_;
-        return nullptr;
-      }
-      if (!old_dialog_participant.is_valid() || !new_dialog_participant.is_valid()) {
-        LOG(ERROR) << "Wrong restrict: " << old_dialog_participant << " -> " << new_dialog_participant;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventMemberRestricted>(
-          get_message_sender_object(td, old_dialog_participant.dialog_id_, "chatEventMemberRestricted"),
-          old_dialog_participant.status_.get_chat_member_status_object(),
-          new_dialog_participant.status_.get_chat_member_status_object());
-    }
-    case telegram_api::channelAdminLogEventActionParticipantToggleAdmin::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantToggleAdmin>(action_ptr);
-      auto channel_type = td->chat_manager_->get_channel_type(channel_id);
-      DialogParticipant old_dialog_participant(std::move(action->prev_participant_), channel_type);
-      DialogParticipant new_dialog_participant(std::move(action->new_participant_), channel_type);
-      if (old_dialog_participant.dialog_id_ != new_dialog_participant.dialog_id_) {
-        LOG(ERROR) << old_dialog_participant.dialog_id_ << " VS " << new_dialog_participant.dialog_id_;
-        return nullptr;
-      }
-      if (!old_dialog_participant.is_valid() || !new_dialog_participant.is_valid() ||
-          old_dialog_participant.dialog_id_.get_type() != DialogType::User) {
-        LOG(ERROR) << "Wrong edit administrator: " << old_dialog_participant << " -> " << new_dialog_participant;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventMemberPromoted>(
-          td->user_manager_->get_user_id_object(old_dialog_participant.dialog_id_.get_user_id(),
-                                                "chatEventMemberPromoted"),
-          old_dialog_participant.status_.get_chat_member_status_object(),
-          new_dialog_participant.status_.get_chat_member_status_object());
-    }
-    case telegram_api::channelAdminLogEventActionChangeTitle::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeTitle>(action_ptr);
-      return td_api::make_object<td_api::chatEventTitleChanged>(std::move(action->prev_value_),
-                                                                std::move(action->new_value_));
-    }
-    case telegram_api::channelAdminLogEventActionChangeAbout::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeAbout>(action_ptr);
-      return td_api::make_object<td_api::chatEventDescriptionChanged>(std::move(action->prev_value_),
-                                                                      std::move(action->new_value_));
-    }
-    case telegram_api::channelAdminLogEventActionChangeUsername::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeUsername>(action_ptr);
-      return td_api::make_object<td_api::chatEventUsernameChanged>(std::move(action->prev_value_),
-                                                                   std::move(action->new_value_));
-    }
-    case telegram_api::channelAdminLogEventActionChangeUsernames::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeUsernames>(action_ptr);
-      return td_api::make_object<td_api::chatEventActiveUsernamesChanged>(std::move(action->prev_value_),
-                                                                          std::move(action->new_value_));
-    }
-    case telegram_api::channelAdminLogEventActionChangePhoto::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangePhoto>(action_ptr);
-      auto old_photo = get_photo(td, std::move(action->prev_photo_), DialogId(channel_id));
-      auto new_photo = get_photo(td, std::move(action->new_photo_), DialogId(channel_id));
-      auto file_manager = td->file_manager_.get();
-      return td_api::make_object<td_api::chatEventPhotoChanged>(get_chat_photo_object(file_manager, old_photo),
-                                                                get_chat_photo_object(file_manager, new_photo));
-    }
-    case telegram_api::channelAdminLogEventActionDefaultBannedRights::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionDefaultBannedRights>(action_ptr);
-      auto channel_type = td->chat_manager_->get_channel_type(channel_id);
-      auto old_permissions = RestrictedRights(action->prev_banned_rights_, channel_type);
-      auto new_permissions = RestrictedRights(action->new_banned_rights_, channel_type);
-      return td_api::make_object<td_api::chatEventPermissionsChanged>(old_permissions.get_chat_permissions_object(),
-                                                                      new_permissions.get_chat_permissions_object());
-    }
-    case telegram_api::channelAdminLogEventActionToggleInvites::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleInvites>(action_ptr);
-      return td_api::make_object<td_api::chatEventInvitesToggled>(action->new_value_);
-    }
-    case telegram_api::channelAdminLogEventActionToggleSignatures::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleSignatures>(action_ptr);
-      return td_api::make_object<td_api::chatEventSignMessagesToggled>(action->new_value_);
-    }
-    case telegram_api::channelAdminLogEventActionToggleSignatureProfiles::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleSignatureProfiles>(action_ptr);
-      return td_api::make_object<td_api::chatEventShowMessageSenderToggled>(action->new_value_);
-    }
-    case telegram_api::channelAdminLogEventActionUpdatePinned::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionUpdatePinned>(action_ptr);
-      auto message = td->messages_manager_->get_dialog_event_log_message_object(
-          DialogId(channel_id), std::move(action->message_), actor_dialog_id);
-      if (message == nullptr) {
-        return nullptr;
-      }
-      if (message->is_pinned_) {
-        return td_api::make_object<td_api::chatEventMessagePinned>(std::move(message));
-      } else {
-        return td_api::make_object<td_api::chatEventMessageUnpinned>(std::move(message));
-      }
-    }
-    case telegram_api::channelAdminLogEventActionSendMessage::ID: {
-      return nullptr;
-    }
-    case telegram_api::channelAdminLogEventActionEditMessage::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionEditMessage>(action_ptr);
-      DialogId old_sender_dialog_id;
-      auto old_message = td->messages_manager_->get_dialog_event_log_message_object(
-          DialogId(channel_id), std::move(action->prev_message_), old_sender_dialog_id);
-      DialogId new_sender_dialog_id;
-      auto new_message = td->messages_manager_->get_dialog_event_log_message_object(
-          DialogId(channel_id), std::move(action->new_message_), new_sender_dialog_id);
-      if (old_message == nullptr || new_message == nullptr) {
-        return nullptr;
-      }
-      if (old_sender_dialog_id == new_sender_dialog_id) {
-        actor_dialog_id = old_sender_dialog_id;
-      }
-      return td_api::make_object<td_api::chatEventMessageEdited>(std::move(old_message), std::move(new_message));
-    }
-    case telegram_api::channelAdminLogEventActionStopPoll::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionStopPoll>(action_ptr);
-      auto message = td->messages_manager_->get_dialog_event_log_message_object(
-          DialogId(channel_id), std::move(action->message_), actor_dialog_id);
-      if (message == nullptr) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventPollStopped>(std::move(message));
-    }
-    case telegram_api::channelAdminLogEventActionDeleteMessage::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionDeleteMessage>(action_ptr);
-      auto message = td->messages_manager_->get_dialog_event_log_message_object(
-          DialogId(channel_id), std::move(action->message_), actor_dialog_id);
-      if (message == nullptr) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventMessageDeleted>(std::move(message), false);
-    }
-    case telegram_api::channelAdminLogEventActionChangeStickerSet::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeStickerSet>(action_ptr);
-      auto old_sticker_set_id = td->stickers_manager_->add_sticker_set(std::move(action->prev_stickerset_));
-      auto new_sticker_set_id = td->stickers_manager_->add_sticker_set(std::move(action->new_stickerset_));
-      return td_api::make_object<td_api::chatEventStickerSetChanged>(old_sticker_set_id.get(),
-                                                                     new_sticker_set_id.get());
-    }
-    case telegram_api::channelAdminLogEventActionChangeEmojiStickerSet::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeEmojiStickerSet>(action_ptr);
-      auto old_sticker_set_id = td->stickers_manager_->add_sticker_set(std::move(action->prev_stickerset_));
-      auto new_sticker_set_id = td->stickers_manager_->add_sticker_set(std::move(action->new_stickerset_));
-      return td_api::make_object<td_api::chatEventCustomEmojiStickerSetChanged>(old_sticker_set_id.get(),
-                                                                                new_sticker_set_id.get());
-    }
-    case telegram_api::channelAdminLogEventActionTogglePreHistoryHidden::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionTogglePreHistoryHidden>(action_ptr);
-      return td_api::make_object<td_api::chatEventIsAllHistoryAvailableToggled>(!action->new_value_);
-    }
-    case telegram_api::channelAdminLogEventActionChangeLinkedChat::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeLinkedChat>(action_ptr);
-
-      auto get_dialog_from_channel_id = [dialog_manager = td->dialog_manager_.get()](int64 channel_id_int) {
-        ChannelId channel_id(channel_id_int);
-        if (!channel_id.is_valid()) {
-          return DialogId();
-        }
-
-        DialogId dialog_id(channel_id);
-        dialog_manager->force_create_dialog(dialog_id, "get_dialog_from_channel_id");
-        return dialog_id;
-      };
-
-      auto old_linked_dialog_id = get_dialog_from_channel_id(action->prev_value_);
-      auto new_linked_dialog_id = get_dialog_from_channel_id(action->new_value_);
-      if (old_linked_dialog_id == new_linked_dialog_id) {
-        LOG(ERROR) << "Receive the same linked " << new_linked_dialog_id;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventLinkedChatChanged>(
-          td->dialog_manager_->get_chat_id_object(old_linked_dialog_id, "chatEventLinkedChatChanged"),
-          td->dialog_manager_->get_chat_id_object(new_linked_dialog_id, "chatEventLinkedChatChanged 2"));
-    }
-    case telegram_api::channelAdminLogEventActionChangeLocation::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeLocation>(action_ptr);
-      auto old_location = DialogLocation(td, std::move(action->prev_value_));
-      auto new_location = DialogLocation(td, std::move(action->new_value_));
-      return td_api::make_object<td_api::chatEventLocationChanged>(old_location.get_chat_location_object(),
-                                                                   new_location.get_chat_location_object());
-    }
-    case telegram_api::channelAdminLogEventActionToggleSlowMode::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleSlowMode>(action_ptr);
-      auto old_slow_mode_delay = clamp(action->prev_value_, 0, 86400 * 366);
-      auto new_slow_mode_delay = clamp(action->new_value_, 0, 86400 * 366);
-      return td_api::make_object<td_api::chatEventSlowModeDelayChanged>(old_slow_mode_delay, new_slow_mode_delay);
-    }
-    case telegram_api::channelAdminLogEventActionExportedInviteEdit::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionExportedInviteEdit>(action_ptr);
-      DialogInviteLink old_invite_link(std::move(action->prev_invite_), true, false,
-                                       "channelAdminLogEventActionExportedInviteEdit");
-      DialogInviteLink new_invite_link(std::move(action->new_invite_), true, false,
-                                       "channelAdminLogEventActionExportedInviteEdit");
-      if (!old_invite_link.is_valid() || !new_invite_link.is_valid()) {
-        LOG(ERROR) << "Wrong edited invite link: " << old_invite_link << " -> " << new_invite_link;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventInviteLinkEdited>(
-          old_invite_link.get_chat_invite_link_object(td->user_manager_.get()),
-          new_invite_link.get_chat_invite_link_object(td->user_manager_.get()));
-    }
-    case telegram_api::channelAdminLogEventActionExportedInviteRevoke::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionExportedInviteRevoke>(action_ptr);
-      DialogInviteLink invite_link(std::move(action->invite_), true, false,
-                                   "channelAdminLogEventActionExportedInviteRevoke");
-      if (!invite_link.is_valid()) {
-        LOG(ERROR) << "Wrong revoked invite link: " << invite_link;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventInviteLinkRevoked>(
-          invite_link.get_chat_invite_link_object(td->user_manager_.get()));
-    }
-    case telegram_api::channelAdminLogEventActionExportedInviteDelete::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionExportedInviteDelete>(action_ptr);
-      DialogInviteLink invite_link(std::move(action->invite_), true, false,
-                                   "channelAdminLogEventActionExportedInviteDelete");
-      if (!invite_link.is_valid()) {
-        LOG(ERROR) << "Wrong deleted invite link: " << invite_link;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventInviteLinkDeleted>(
-          invite_link.get_chat_invite_link_object(td->user_manager_.get()));
-    }
-    case telegram_api::channelAdminLogEventActionStartGroupCall::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionStartGroupCall>(action_ptr);
-      auto input_group_call_id = InputGroupCallId(action->call_);
-      if (!input_group_call_id.is_valid()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventVideoChatCreated>(
-          td->group_call_manager_->get_group_call_id(input_group_call_id, DialogId(channel_id)).get());
-    }
-    case telegram_api::channelAdminLogEventActionDiscardGroupCall::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionDiscardGroupCall>(action_ptr);
-      auto input_group_call_id = InputGroupCallId(action->call_);
-      if (!input_group_call_id.is_valid()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventVideoChatEnded>(
-          td->group_call_manager_->get_group_call_id(input_group_call_id, DialogId(channel_id)).get());
-    }
-    case telegram_api::channelAdminLogEventActionParticipantMute::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantMute>(action_ptr);
-      GroupCallParticipant participant(action->participant_, 0);
-      if (!participant.is_valid()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventVideoChatParticipantIsMutedToggled>(
-          get_message_sender_object(td, participant.dialog_id, "chatEventVideoChatParticipantIsMutedToggled"), true);
-    }
-    case telegram_api::channelAdminLogEventActionParticipantUnmute::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantUnmute>(action_ptr);
-      GroupCallParticipant participant(action->participant_, 0);
-      if (!participant.is_valid()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventVideoChatParticipantIsMutedToggled>(
-          get_message_sender_object(td, participant.dialog_id, "chatEventVideoChatParticipantIsMutedToggled"), false);
-    }
-    case telegram_api::channelAdminLogEventActionParticipantVolume::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantVolume>(action_ptr);
-      GroupCallParticipant participant(action->participant_, 0);
-      if (!participant.is_valid()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventVideoChatParticipantVolumeLevelChanged>(
-          get_message_sender_object(td, participant.dialog_id, "chatEventVideoChatParticipantVolumeLevelChanged"),
-          participant.volume_level);
-    }
-    case telegram_api::channelAdminLogEventActionToggleGroupCallSetting::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleGroupCallSetting>(action_ptr);
-      return td_api::make_object<td_api::chatEventVideoChatMuteNewParticipantsToggled>(action->join_muted_);
-    }
-    case telegram_api::channelAdminLogEventActionChangeHistoryTTL::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeHistoryTTL>(action_ptr);
-      auto old_value = MessageTtl(clamp(action->prev_value_, 0, 86400 * 366));
-      auto new_value = MessageTtl(clamp(action->new_value_, 0, 86400 * 366));
-      return td_api::make_object<td_api::chatEventMessageAutoDeleteTimeChanged>(
-          old_value.get_message_auto_delete_time_object(), new_value.get_message_auto_delete_time_object());
-    }
-    case telegram_api::channelAdminLogEventActionToggleNoForwards::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleNoForwards>(action_ptr);
-      return td_api::make_object<td_api::chatEventHasProtectedContentToggled>(action->new_value_);
-    }
-    case telegram_api::channelAdminLogEventActionChangeAvailableReactions::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeAvailableReactions>(action_ptr);
-      ChatReactions old_available_reactions(std::move(action->prev_value_), 0, false);
-      ChatReactions new_available_reactions(std::move(action->new_value_), 0, false);
-      return td_api::make_object<td_api::chatEventAvailableReactionsChanged>(
-          old_available_reactions.get_chat_available_reactions_object(td),
-          new_available_reactions.get_chat_available_reactions_object(td));
-    }
-    case telegram_api::channelAdminLogEventActionToggleForum::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleForum>(action_ptr);
-      return td_api::make_object<td_api::chatEventIsForumToggled>(action->new_value_);
-    }
-    case telegram_api::channelAdminLogEventActionCreateTopic::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionCreateTopic>(action_ptr);
-      auto topic_info = ForumTopicInfo(td, action->topic_);
-      if (topic_info.is_empty()) {
-        return nullptr;
-      }
-      actor_dialog_id = topic_info.get_creator_dialog_id();
-      return td_api::make_object<td_api::chatEventForumTopicCreated>(topic_info.get_forum_topic_info_object(td));
-    }
-    case telegram_api::channelAdminLogEventActionEditTopic::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionEditTopic>(action_ptr);
-      auto old_topic_info = ForumTopicInfo(td, action->prev_topic_);
-      auto new_topic_info = ForumTopicInfo(td, action->new_topic_);
-      if (old_topic_info.is_empty() || new_topic_info.is_empty() ||
-          old_topic_info.get_top_thread_message_id() != new_topic_info.get_top_thread_message_id()) {
-        LOG(ERROR) << "Receive " << to_string(action);
-        return nullptr;
-      }
-      bool edit_is_closed = old_topic_info.is_closed() != new_topic_info.is_closed();
-      bool edit_is_hidden = old_topic_info.is_hidden() != new_topic_info.is_hidden();
-      if (edit_is_hidden && !(!new_topic_info.is_hidden() && edit_is_closed && !new_topic_info.is_closed())) {
-        return td_api::make_object<td_api::chatEventForumTopicToggleIsHidden>(
-            new_topic_info.get_forum_topic_info_object(td));
-      }
-      if (old_topic_info.is_closed() != new_topic_info.is_closed()) {
-        return td_api::make_object<td_api::chatEventForumTopicToggleIsClosed>(
-            new_topic_info.get_forum_topic_info_object(td));
-      }
-      return td_api::make_object<td_api::chatEventForumTopicEdited>(old_topic_info.get_forum_topic_info_object(td),
-                                                                    new_topic_info.get_forum_topic_info_object(td));
-    }
-    case telegram_api::channelAdminLogEventActionDeleteTopic::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionDeleteTopic>(action_ptr);
-      auto topic_info = ForumTopicInfo(td, action->topic_);
-      if (topic_info.is_empty()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventForumTopicDeleted>(topic_info.get_forum_topic_info_object(td));
-    }
-    case telegram_api::channelAdminLogEventActionPinTopic::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionPinTopic>(action_ptr);
-      ForumTopicInfo old_topic_info;
-      ForumTopicInfo new_topic_info;
-      if (action->prev_topic_ != nullptr) {
-        old_topic_info = ForumTopicInfo(td, action->prev_topic_);
-      }
-      if (action->new_topic_ != nullptr) {
-        new_topic_info = ForumTopicInfo(td, action->new_topic_);
-      }
-      if (old_topic_info.is_empty() && new_topic_info.is_empty()) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventForumTopicPinned>(old_topic_info.get_forum_topic_info_object(td),
-                                                                    new_topic_info.get_forum_topic_info_object(td));
-    }
-    case telegram_api::channelAdminLogEventActionToggleAntiSpam::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleAntiSpam>(action_ptr);
-      return td_api::make_object<td_api::chatEventHasAggressiveAntiSpamEnabledToggled>(action->new_value_);
-    }
-    case telegram_api::channelAdminLogEventActionChangePeerColor::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangePeerColor>(action_ptr);
-      auto old_peer_color = PeerColor(action->prev_value_);
-      auto new_peer_color = PeerColor(action->new_value_);
-      return td_api::make_object<td_api::chatEventAccentColorChanged>(
-          td->theme_manager_->get_accent_color_id_object(old_peer_color.accent_color_id_, AccentColorId(channel_id)),
-          old_peer_color.background_custom_emoji_id_.get(),
-          td->theme_manager_->get_accent_color_id_object(new_peer_color.accent_color_id_, AccentColorId(channel_id)),
-          new_peer_color.background_custom_emoji_id_.get());
-    }
-    case telegram_api::channelAdminLogEventActionChangeProfilePeerColor::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeProfilePeerColor>(action_ptr);
-      auto old_peer_color = PeerColor(action->prev_value_);
-      auto new_peer_color = PeerColor(action->new_value_);
-      return td_api::make_object<td_api::chatEventProfileAccentColorChanged>(
-          td->theme_manager_->get_profile_accent_color_id_object(old_peer_color.accent_color_id_),
-          old_peer_color.background_custom_emoji_id_.get(),
-          td->theme_manager_->get_profile_accent_color_id_object(new_peer_color.accent_color_id_),
-          new_peer_color.background_custom_emoji_id_.get());
-    }
-    case telegram_api::channelAdminLogEventActionChangeWallpaper::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeWallpaper>(action_ptr);
-      auto old_background_info = BackgroundInfo(td, std::move(action->prev_value_), true);
-      auto new_background_info = BackgroundInfo(td, std::move(action->new_value_), true);
-      return td_api::make_object<td_api::chatEventBackgroundChanged>(
-          old_background_info.get_chat_background_object(td), new_background_info.get_chat_background_object(td));
-    }
-    case telegram_api::channelAdminLogEventActionChangeEmojiStatus::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionChangeEmojiStatus>(action_ptr);
-      auto old_emoji_status = EmojiStatus(std::move(action->prev_value_));
-      auto new_emoji_status = EmojiStatus(std::move(action->new_value_));
-      return td_api::make_object<td_api::chatEventEmojiStatusChanged>(old_emoji_status.get_emoji_status_object(),
-                                                                      new_emoji_status.get_emoji_status_object());
-    }
-    case telegram_api::channelAdminLogEventActionParticipantSubExtend::ID: {
-      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionParticipantSubExtend>(action_ptr);
-      auto channel_type = td->chat_manager_->get_channel_type(channel_id);
-      DialogParticipant old_dialog_participant(std::move(action->prev_participant_), channel_type);
-      DialogParticipant new_dialog_participant(std::move(action->new_participant_), channel_type);
-      if (old_dialog_participant.dialog_id_ != new_dialog_participant.dialog_id_) {
-        LOG(ERROR) << old_dialog_participant.dialog_id_ << " VS " << new_dialog_participant.dialog_id_;
-        return nullptr;
-      }
-      if (!old_dialog_participant.is_valid() || !new_dialog_participant.is_valid() ||
-          old_dialog_participant.dialog_id_.get_type() != DialogType::User ||
-          !old_dialog_participant.status_.is_member() || !new_dialog_participant.status_.is_member()) {
-        LOG(ERROR) << "Wrong subscription: " << old_dialog_participant << " -> " << new_dialog_participant;
-        return nullptr;
-      }
-      return td_api::make_object<td_api::chatEventMemberSubscriptionExtended>(
-          td->user_manager_->get_user_id_object(old_dialog_participant.dialog_id_.get_user_id(),
-                                                "chatEventMemberSubscriptionExtended"),
-          old_dialog_participant.status_.get_chat_member_status_object(),
-          new_dialog_participant.status_.get_chat_member_status_object());
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-class GetChannelAdminLogQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatEvents>> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetChannelAdminLogQuery(Promise<td_api::object_ptr<td_api::chatEvents>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const string &query, int64 from_event_id, int32 limit,
-            tl_object_ptr<telegram_api::channelAdminLogEventsFilter> filter,
-            vector<tl_object_ptr<telegram_api::InputUser>> input_users) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    int32 flags = 0;
-    if (filter != nullptr) {
-      flags |= telegram_api::channels_getAdminLog::EVENTS_FILTER_MASK;
-    }
-    if (!input_users.empty()) {
-      flags |= telegram_api::channels_getAdminLog::ADMINS_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::channels_getAdminLog(
-        flags, std::move(input_channel), query, std::move(filter), std::move(input_users), from_event_id, 0, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getAdminLog>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto events = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive in " << channel_id_ << ' ' << to_string(events);
-    td_->user_manager_->on_get_users(std::move(events->users_), "on_get_event_log");
-    td_->chat_manager_->on_get_chats(std::move(events->chats_), "on_get_event_log");
-
-    auto anti_spam_user_id = UserId(G()->get_option_integer("anti_spam_bot_user_id"));
-    auto result = td_api::make_object<td_api::chatEvents>();
-    result->events_.reserve(events->events_.size());
-    for (auto &event : events->events_) {
-      if (event->date_ <= 0) {
-        LOG(ERROR) << "Receive wrong event date = " << event->date_;
-        event->date_ = 0;
-      }
-
-      UserId user_id(event->user_id_);
-      if (!user_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << user_id;
-        continue;
-      }
-      LOG_IF(ERROR, !td_->user_manager_->have_user(user_id)) << "Receive unknown " << user_id;
-
-      DialogId actor_dialog_id;
-      auto action = get_chat_event_action_object(td_, channel_id_, std::move(event->action_), actor_dialog_id);
-      if (action == nullptr) {
-        continue;
-      }
-      if (user_id == anti_spam_user_id && anti_spam_user_id.is_valid() &&
-          action->get_id() == td_api::chatEventMessageDeleted::ID) {
-        static_cast<td_api::chatEventMessageDeleted *>(action.get())->can_report_anti_spam_false_positive_ = true;
-      }
-      if (user_id == UserManager::get_channel_bot_user_id() && actor_dialog_id.is_valid() &&
-          actor_dialog_id.get_type() != DialogType::User) {
-        user_id = UserId();
-      } else {
-        actor_dialog_id = DialogId();
-      }
-      auto actor = get_message_sender_object_const(td_, user_id, actor_dialog_id, "GetChannelAdminLogQuery");
-      result->events_.push_back(
-          td_api::make_object<td_api::chatEvent>(event->id_, event->date_, std::move(actor), std::move(action)));
-    }
-
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetChannelAdminLogQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-static telegram_api::object_ptr<telegram_api::channelAdminLogEventsFilter> get_input_channel_admin_log_events_filter(
-    const td_api::object_ptr<td_api::chatEventLogFilters> &filters) {
-  if (filters == nullptr) {
-    return nullptr;
-  }
-  return telegram_api::make_object<telegram_api::channelAdminLogEventsFilter>(
-      0, filters->member_joins_, filters->member_leaves_, filters->member_invites_, filters->member_restrictions_,
-      filters->member_restrictions_, filters->member_restrictions_, filters->member_restrictions_,
-      filters->member_promotions_, filters->member_promotions_, filters->info_changes_, filters->setting_changes_,
-      filters->message_pins_, filters->message_edits_, filters->message_deletions_, filters->video_chat_changes_,
-      filters->invite_link_changes_, false /*send*/, filters->forum_changes_, filters->subscription_extensions_);
-}
-
-void get_dialog_event_log(Td *td, DialogId dialog_id, const string &query, int64 from_event_id, int32 limit,
-                          const td_api::object_ptr<td_api::chatEventLogFilters> &filters,
-                          const vector<UserId> &user_ids, Promise<td_api::object_ptr<td_api::chatEvents>> &&promise) {
-  if (!td->dialog_manager_->have_dialog_force(dialog_id, "get_dialog_event_log")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return promise.set_error(Status::Error(400, "Chat is not a supergroup chat"));
-  }
-
-  auto channel_id = dialog_id.get_channel_id();
-  if (!td->chat_manager_->have_channel(channel_id)) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-
-  if (!td->chat_manager_->get_channel_status(channel_id).is_administrator()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to get event log"));
-  }
-
-  vector<tl_object_ptr<telegram_api::InputUser>> input_users;
-  for (auto user_id : user_ids) {
-    TRY_RESULT_PROMISE(promise, input_user, td->user_manager_->get_input_user(user_id));
-    input_users.push_back(std::move(input_user));
-  }
-
-  td->create_handler<GetChannelAdminLogQuery>(std::move(promise))
-      ->send(channel_id, query, from_event_id, limit, get_input_channel_admin_log_events_filter(filters),
-             std::move(input_users));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogEventLog.h b/third-party/td/td/td/telegram/DialogEventLog.h
deleted file mode 100644
index 239ee4923d..0000000000
--- a/third-party/td/td/td/telegram/DialogEventLog.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-void get_dialog_event_log(Td *td, DialogId dialog_id, const string &query, int64 from_event_id, int32 limit,
-                          const td_api::object_ptr<td_api::chatEventLogFilters> &filters,
-                          const vector<UserId> &user_ids, Promise<td_api::object_ptr<td_api::chatEvents>> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilter.cpp b/third-party/td/td/td/telegram/DialogFilter.cpp
deleted file mode 100644
index 4e397d90a4..0000000000
--- a/third-party/td/td/td/telegram/DialogFilter.cpp
+++ /dev/null
@@ -1,943 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogFilter.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/emoji.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-#include <algorithm>
-#include <utility>
-
-namespace td {
-
-int32 DialogFilter::get_max_filter_dialogs() {
-  return narrow_cast<int32>(G()->get_option_integer("chat_folder_chosen_chat_count_max", 100));
-}
-
-unique_ptr<DialogFilter> DialogFilter::get_dialog_filter(
-    telegram_api::object_ptr<telegram_api::DialogFilter> filter_ptr, bool with_id) {
-  FlatHashSet<DialogId, DialogIdHash> added_dialog_ids;
-  switch (filter_ptr->get_id()) {
-    case telegram_api::dialogFilter::ID: {
-      auto filter = telegram_api::move_object_as<telegram_api::dialogFilter>(filter_ptr);
-      DialogFilterId dialog_filter_id(filter->id_);
-      if (with_id) {
-        if (!dialog_filter_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid " << to_string(filter);
-          return nullptr;
-        }
-      } else {
-        dialog_filter_id = DialogFilterId();
-      }
-      auto dialog_filter = make_unique<DialogFilter>();
-      dialog_filter->dialog_filter_id_ = dialog_filter_id;
-      dialog_filter->title_ = get_formatted_text(nullptr, std::move(filter->title_), true, false, "dialogFilter");
-      keep_only_custom_emoji(dialog_filter->title_);
-      dialog_filter->animate_title_ = !filter->title_noanimate_;
-      dialog_filter->emoji_ = std::move(filter->emoticon_);
-      dialog_filter->color_id_ = (filter->flags_ & telegram_api::dialogFilter::COLOR_MASK) != 0 ? filter->color_ : -1;
-      dialog_filter->pinned_dialog_ids_ = InputDialogId::get_input_dialog_ids(filter->pinned_peers_, &added_dialog_ids);
-      dialog_filter->included_dialog_ids_ =
-          InputDialogId::get_input_dialog_ids(filter->include_peers_, &added_dialog_ids);
-      dialog_filter->excluded_dialog_ids_ =
-          InputDialogId::get_input_dialog_ids(filter->exclude_peers_, &added_dialog_ids);
-      dialog_filter->exclude_muted_ = filter->exclude_muted_;
-      dialog_filter->exclude_read_ = filter->exclude_read_;
-      dialog_filter->exclude_archived_ = filter->exclude_archived_;
-      dialog_filter->include_contacts_ = filter->contacts_;
-      dialog_filter->include_non_contacts_ = filter->non_contacts_;
-      dialog_filter->include_bots_ = filter->bots_;
-      dialog_filter->include_groups_ = filter->groups_;
-      dialog_filter->include_channels_ = filter->broadcasts_;
-      if (!is_valid_color_id(dialog_filter->color_id_)) {
-        LOG(ERROR) << "Receive color " << dialog_filter->color_id_;
-        dialog_filter->color_id_ = -1;
-      }
-      return dialog_filter;
-    }
-    case telegram_api::dialogFilterChatlist::ID: {
-      auto filter = telegram_api::move_object_as<telegram_api::dialogFilterChatlist>(filter_ptr);
-      DialogFilterId dialog_filter_id(filter->id_);
-      if (with_id) {
-        if (!dialog_filter_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid " << to_string(filter);
-          return nullptr;
-        }
-      } else {
-        dialog_filter_id = DialogFilterId();
-      }
-      auto dialog_filter = make_unique<DialogFilter>();
-      dialog_filter->dialog_filter_id_ = dialog_filter_id;
-      dialog_filter->title_ =
-          get_formatted_text(nullptr, std::move(filter->title_), true, false, "dialogFilterChatlist");
-      keep_only_custom_emoji(dialog_filter->title_);
-      dialog_filter->animate_title_ = !filter->title_noanimate_;
-      dialog_filter->emoji_ = std::move(filter->emoticon_);
-      dialog_filter->color_id_ =
-          (filter->flags_ & telegram_api::dialogFilterChatlist::COLOR_MASK) != 0 ? filter->color_ : -1;
-      dialog_filter->pinned_dialog_ids_ = InputDialogId::get_input_dialog_ids(filter->pinned_peers_, &added_dialog_ids);
-      dialog_filter->included_dialog_ids_ =
-          InputDialogId::get_input_dialog_ids(filter->include_peers_, &added_dialog_ids);
-      dialog_filter->is_shareable_ = true;
-      dialog_filter->has_my_invites_ = filter->has_my_invites_;
-      if (!is_valid_color_id(dialog_filter->color_id_)) {
-        LOG(ERROR) << "Receive color " << dialog_filter->color_id_;
-        dialog_filter->color_id_ = -1;
-      }
-      return dialog_filter;
-    }
-    default:
-      LOG(ERROR) << "Ignore " << to_string(filter_ptr);
-      return nullptr;
-  }
-}
-
-Result<unique_ptr<DialogFilter>> DialogFilter::create_dialog_filter(Td *td, DialogFilterId dialog_filter_id,
-                                                                    td_api::object_ptr<td_api::chatFolder> filter) {
-  if (filter == nullptr) {
-    return Status::Error(400, "Chat folder must be non-empty");
-  }
-  if (filter->name_ == nullptr || filter->name_->text_ == nullptr) {
-    return Status::Error(400, "Chat folder name must be non-empty");
-  }
-  string icon_name;
-  if (filter->icon_ != nullptr) {
-    icon_name = std::move(filter->icon_->name_);
-    if (!clean_input_string(icon_name)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-  }
-
-  TRY_RESULT(title, get_formatted_text(td, td->dialog_manager_->get_my_dialog_id(), std::move(filter->name_->text_),
-                                       false, false, true, false));
-  constexpr size_t MAX_TITLE_LENGTH = 12;  // server-side limit for dialog filter title
-  title.text = clean_name(title.text, MAX_TITLE_LENGTH);
-  if (title.text.empty()) {
-    return Status::Error(400, "Title must be non-empty");
-  }
-  keep_only_custom_emoji(title);
-
-  auto dialog_filter = make_unique<DialogFilter>();
-  dialog_filter->dialog_filter_id_ = dialog_filter_id;
-
-  FlatHashSet<int64> added_dialog_ids;
-  auto add_chats = [td, &added_dialog_ids](vector<InputDialogId> &input_dialog_ids, const vector<int64> &chat_ids) {
-    for (const auto &chat_id : chat_ids) {
-      if (chat_id == 0 || !added_dialog_ids.insert(chat_id).second) {
-        // do not allow duplicate chat_ids
-        continue;
-      }
-
-      input_dialog_ids.push_back(td->dialog_manager_->get_input_dialog_id(DialogId(chat_id)));
-    }
-  };
-  add_chats(dialog_filter->pinned_dialog_ids_, filter->pinned_chat_ids_);
-  add_chats(dialog_filter->included_dialog_ids_, filter->included_chat_ids_);
-  add_chats(dialog_filter->excluded_dialog_ids_, filter->excluded_chat_ids_);
-
-  dialog_filter->title_ = std::move(title);
-  dialog_filter->animate_title_ = filter->name_->animate_custom_emoji_;
-  dialog_filter->emoji_ = get_emoji_by_icon_name(icon_name);
-  if (dialog_filter->emoji_.empty() && !icon_name.empty()) {
-    return Status::Error(400, "Invalid icon name specified");
-  }
-  dialog_filter->color_id_ = filter->color_id_;
-  if (!is_valid_color_id(dialog_filter->color_id_)) {
-    return Status::Error(400, "Invalid color identifier specified");
-  }
-  dialog_filter->exclude_muted_ = filter->exclude_muted_;
-  dialog_filter->exclude_read_ = filter->exclude_read_;
-  dialog_filter->exclude_archived_ = filter->exclude_archived_;
-  dialog_filter->include_contacts_ = filter->include_contacts_;
-  dialog_filter->include_non_contacts_ = filter->include_non_contacts_;
-  dialog_filter->include_bots_ = filter->include_bots_;
-  dialog_filter->include_groups_ = filter->include_groups_;
-  dialog_filter->include_channels_ = filter->include_channels_;
-  dialog_filter->is_shareable_ = filter->is_shareable_;
-  dialog_filter->has_my_invites_ = false;
-
-  TRY_STATUS(dialog_filter->check_limits());
-  dialog_filter->sort_input_dialog_ids(td, "create_dialog_filter");
-
-  Status status;
-  dialog_filter->for_each_dialog(
-      [messages_manager = td->messages_manager_.get(), &status](const InputDialogId &input_dialog_id) {
-        if (status.is_error()) {
-          return;
-        }
-        status = messages_manager->can_add_dialog_to_filter(input_dialog_id.get_dialog_id());
-      });
-  if (status.is_error()) {
-    return std::move(status);
-  }
-
-  return std::move(dialog_filter);
-}
-
-void DialogFilter::set_dialog_is_pinned(InputDialogId input_dialog_id, bool is_pinned) {
-  auto dialog_id = input_dialog_id.get_dialog_id();
-  if (is_pinned) {
-    pinned_dialog_ids_.insert(pinned_dialog_ids_.begin(), input_dialog_id);
-    InputDialogId::remove(included_dialog_ids_, dialog_id);
-    InputDialogId::remove(excluded_dialog_ids_, dialog_id);
-  } else {
-    bool is_removed = InputDialogId::remove(pinned_dialog_ids_, dialog_id);
-    CHECK(is_removed);
-    included_dialog_ids_.push_back(input_dialog_id);
-  }
-}
-
-void DialogFilter::set_pinned_dialog_ids(vector<InputDialogId> &&input_dialog_ids) {
-  FlatHashSet<DialogId, DialogIdHash> new_pinned_dialog_ids;
-  for (auto input_dialog_id : input_dialog_ids) {
-    auto dialog_id = input_dialog_id.get_dialog_id();
-    CHECK(dialog_id.is_valid());
-    new_pinned_dialog_ids.insert(dialog_id);
-  }
-
-  auto old_pinned_dialog_ids = std::move(pinned_dialog_ids_);
-  pinned_dialog_ids_ = std::move(input_dialog_ids);
-  auto is_new_pinned = [&new_pinned_dialog_ids](InputDialogId input_dialog_id) {
-    return new_pinned_dialog_ids.count(input_dialog_id.get_dialog_id()) > 0;
-  };
-  td::remove_if(old_pinned_dialog_ids, is_new_pinned);
-  td::remove_if(included_dialog_ids_, is_new_pinned);
-  td::remove_if(excluded_dialog_ids_, is_new_pinned);
-  append(included_dialog_ids_, old_pinned_dialog_ids);
-}
-
-void DialogFilter::include_dialog(InputDialogId input_dialog_id) {
-  included_dialog_ids_.push_back(input_dialog_id);
-  InputDialogId::remove(excluded_dialog_ids_, input_dialog_id.get_dialog_id());
-}
-
-void DialogFilter::remove_secret_chat_dialog_ids() {
-  auto remove_secret_chats = [](vector<InputDialogId> &input_dialog_ids) {
-    td::remove_if(input_dialog_ids, [](InputDialogId input_dialog_id) {
-      return input_dialog_id.get_dialog_id().get_type() == DialogType::SecretChat;
-    });
-  };
-  remove_secret_chats(pinned_dialog_ids_);
-  remove_secret_chats(included_dialog_ids_);
-  remove_secret_chats(excluded_dialog_ids_);
-}
-
-void DialogFilter::remove_dialog_id(DialogId dialog_id) {
-  InputDialogId::remove(pinned_dialog_ids_, dialog_id);
-  InputDialogId::remove(included_dialog_ids_, dialog_id);
-  InputDialogId::remove(excluded_dialog_ids_, dialog_id);
-}
-
-bool DialogFilter::is_empty(bool for_server) const {
-  if (include_contacts_ || include_non_contacts_ || include_bots_ || include_groups_ || include_channels_) {
-    return false;
-  }
-
-  if (for_server) {
-    vector<InputDialogId> empty_input_dialog_ids;
-    return InputDialogId::are_equivalent(pinned_dialog_ids_, empty_input_dialog_ids) &&
-           InputDialogId::are_equivalent(included_dialog_ids_, empty_input_dialog_ids);
-  } else {
-    return pinned_dialog_ids_.empty() && included_dialog_ids_.empty();
-  }
-}
-
-bool DialogFilter::is_dialog_pinned(DialogId dialog_id) const {
-  return InputDialogId::contains(pinned_dialog_ids_, dialog_id);
-}
-
-bool DialogFilter::is_dialog_included(DialogId dialog_id) const {
-  return InputDialogId::contains(included_dialog_ids_, dialog_id) || is_dialog_pinned(dialog_id);
-}
-
-bool DialogFilter::can_include_dialog(DialogId dialog_id) const {
-  if (is_dialog_included(dialog_id)) {
-    return false;
-  }
-
-  if (included_dialog_ids_.size() + pinned_dialog_ids_.size() < narrow_cast<size_t>(get_max_filter_dialogs())) {
-    // fast path
-    return true;
-  }
-
-  auto new_dialog_filter = make_unique<DialogFilter>(*this);
-  new_dialog_filter->include_dialog(InputDialogId(dialog_id));
-  return new_dialog_filter->check_limits().is_ok();
-}
-
-Status DialogFilter::check_limits() const {
-  auto get_server_dialog_count = [](const vector<InputDialogId> &input_dialog_ids) {
-    int32 result = 0;
-    for (auto &input_dialog_id : input_dialog_ids) {
-      if (input_dialog_id.get_dialog_id().get_type() != DialogType::SecretChat) {
-        result++;
-      }
-    }
-    return result;
-  };
-
-  auto excluded_server_dialog_count = get_server_dialog_count(excluded_dialog_ids_);
-  auto included_server_dialog_count = get_server_dialog_count(included_dialog_ids_);
-  auto pinned_server_dialog_count = get_server_dialog_count(pinned_dialog_ids_);
-
-  auto excluded_secret_dialog_count = static_cast<int32>(excluded_dialog_ids_.size()) - excluded_server_dialog_count;
-  auto included_secret_dialog_count = static_cast<int32>(included_dialog_ids_.size()) - included_server_dialog_count;
-  auto pinned_secret_dialog_count = static_cast<int32>(pinned_dialog_ids_.size()) - pinned_server_dialog_count;
-
-  auto limit = get_max_filter_dialogs();
-  if (excluded_server_dialog_count > limit || excluded_secret_dialog_count > limit) {
-    return Status::Error(400, "The maximum number of excluded chats exceeded");
-  }
-  if (included_server_dialog_count > limit || included_secret_dialog_count > limit) {
-    return Status::Error(400, "The maximum number of included chats exceeded");
-  }
-  if (included_server_dialog_count + pinned_server_dialog_count > limit ||
-      included_secret_dialog_count + pinned_secret_dialog_count > limit) {
-    return Status::Error(400, "The maximum number of pinned chats exceeded");
-  }
-
-  if (is_empty(false)) {
-    return Status::Error(400, "Folder must contain at least 1 chat");
-  }
-  if (is_shareable_) {
-    if (!excluded_dialog_ids_.empty()) {
-      return Status::Error(400, "Shareable folders can't have excluded chats");
-    }
-    if (include_contacts_ || include_non_contacts_ || include_bots_ || include_groups_ || include_channels_ ||
-        exclude_archived_ || exclude_read_ || exclude_muted_) {
-      return Status::Error(400, "Shareable folders can't have chat filters");
-    }
-  } else if (has_my_invites_) {
-    LOG(ERROR) << "Have shareable folder with invite links";
-  }
-
-  if (include_contacts_ && include_non_contacts_ && include_bots_ && include_groups_ && include_channels_ &&
-      exclude_archived_ && !exclude_read_ && !exclude_muted_) {
-    return Status::Error(400, "Folder must be different from the main chat list");
-  }
-
-  return Status::OK();
-}
-
-void DialogFilter::update_from(const DialogFilter &old_filter) {
-  has_my_invites_ = old_filter.has_my_invites_;
-}
-
-string DialogFilter::get_emoji_by_icon_name(const string &icon_name) {
-  init_icon_names();
-  auto it = icon_name_to_emoji_.find(icon_name);
-  if (it != icon_name_to_emoji_.end()) {
-    return it->second;
-  }
-  return string();
-}
-
-string DialogFilter::get_icon_name_by_emoji(const string &emoji) {
-  init_icon_names();
-  auto it = emoji_to_icon_name_.find(emoji);
-  if (it != emoji_to_icon_name_.end()) {
-    return it->second;
-  }
-  return string();
-}
-
-string DialogFilter::get_icon_name() const {
-  return get_icon_name_by_emoji(emoji_);
-}
-
-string DialogFilter::get_chosen_or_default_icon_name() const {
-  auto icon_name = get_icon_name();
-  if (!icon_name.empty()) {
-    return icon_name;
-  }
-
-  if (!pinned_dialog_ids_.empty() || !included_dialog_ids_.empty() || !excluded_dialog_ids_.empty()) {
-    return "Custom";
-  }
-
-  if (include_contacts_ || include_non_contacts_) {
-    if (!include_bots_ && !include_groups_ && !include_channels_) {
-      return "Private";
-    }
-  } else {
-    if (!include_bots_ && !include_channels_) {
-      if (!include_groups_) {
-        // just in case
-        return "Custom";
-      }
-      return "Groups";
-    }
-    if (!include_bots_ && !include_groups_) {
-      return "Channels";
-    }
-    if (!include_groups_ && !include_channels_) {
-      return "Bots";
-    }
-  }
-  if (exclude_read_ && !exclude_muted_) {
-    return "Unread";
-  }
-  if (exclude_muted_ && !exclude_read_) {
-    return "Unmuted";
-  }
-  return "Custom";
-}
-
-string DialogFilter::get_default_icon_name(const td_api::chatFolder *filter) {
-  if (filter->icon_ != nullptr && !filter->icon_->name_.empty() &&
-      !get_emoji_by_icon_name(filter->icon_->name_).empty()) {
-    return filter->icon_->name_;
-  }
-
-  if (!filter->pinned_chat_ids_.empty() || !filter->included_chat_ids_.empty() || !filter->excluded_chat_ids_.empty()) {
-    return "Custom";
-  }
-
-  if (filter->include_contacts_ || filter->include_non_contacts_) {
-    if (!filter->include_bots_ && !filter->include_groups_ && !filter->include_channels_) {
-      return "Private";
-    }
-  } else {
-    if (!filter->include_bots_ && !filter->include_channels_) {
-      if (!filter->include_groups_) {
-        // just in case
-        return "Custom";
-      }
-      return "Groups";
-    }
-    if (!filter->include_bots_ && !filter->include_groups_) {
-      return "Channels";
-    }
-    if (!filter->include_groups_ && !filter->include_channels_) {
-      return "Bots";
-    }
-  }
-  if (filter->exclude_read_ && !filter->exclude_muted_) {
-    return "Unread";
-  }
-  if (filter->exclude_muted_ && !filter->exclude_read_) {
-    return "Unmuted";
-  }
-  return "Custom";
-}
-
-telegram_api::object_ptr<telegram_api::DialogFilter> DialogFilter::get_input_dialog_filter() const {
-  if (is_shareable_) {
-    int32 flags = telegram_api::dialogFilterChatlist::EMOTICON_MASK;
-    if (color_id_ != -1) {
-      flags |= telegram_api::dialogFilterChatlist::COLOR_MASK;
-    }
-    return telegram_api::make_object<telegram_api::dialogFilterChatlist>(
-        flags, has_my_invites_, !animate_title_, dialog_filter_id_.get(),
-        get_input_text_with_entities(nullptr, title_, "dialogFilterChatlist"), emoji_, color_id_,
-        InputDialogId::get_input_peers(pinned_dialog_ids_), InputDialogId::get_input_peers(included_dialog_ids_));
-  }
-  int32 flags = telegram_api::dialogFilter::EMOTICON_MASK;
-  if (color_id_ != -1) {
-    flags |= telegram_api::dialogFilter::COLOR_MASK;
-  }
-  return telegram_api::make_object<telegram_api::dialogFilter>(
-      flags, include_contacts_, include_non_contacts_, include_groups_, include_channels_, include_bots_,
-      exclude_muted_, exclude_read_, exclude_archived_, !animate_title_, dialog_filter_id_.get(),
-      get_input_text_with_entities(nullptr, title_, "dialogFilter"), emoji_, color_id_,
-      InputDialogId::get_input_peers(pinned_dialog_ids_), InputDialogId::get_input_peers(included_dialog_ids_),
-      InputDialogId::get_input_peers(excluded_dialog_ids_));
-}
-
-td_api::object_ptr<td_api::chatFolder> DialogFilter::get_chat_folder_object(
-    const vector<DialogId> &unknown_dialog_ids) const {
-  auto get_chat_ids = [unknown_dialog_ids](const vector<InputDialogId> &input_dialog_ids) {
-    vector<int64> chat_ids;
-    chat_ids.reserve(input_dialog_ids.size());
-    for (auto &input_dialog_id : input_dialog_ids) {
-      auto dialog_id = input_dialog_id.get_dialog_id();
-      if (!td::contains(unknown_dialog_ids, dialog_id)) {
-        chat_ids.push_back(dialog_id.get());
-      }
-    }
-    return chat_ids;
-  };
-
-  td_api::object_ptr<td_api::chatFolderIcon> icon;
-  auto icon_name = get_icon_name();
-  if (!icon_name.empty()) {
-    icon = td_api::make_object<td_api::chatFolderIcon>(icon_name);
-  }
-  auto name =
-      td_api::make_object<td_api::chatFolderName>(get_formatted_text_object(nullptr, title_, true, -1), animate_title_);
-  return td_api::make_object<td_api::chatFolder>(
-      std::move(name), std::move(icon), color_id_, is_shareable_, get_chat_ids(pinned_dialog_ids_),
-      get_chat_ids(included_dialog_ids_), get_chat_ids(excluded_dialog_ids_), exclude_muted_, exclude_read_,
-      exclude_archived_, include_contacts_, include_non_contacts_, include_bots_, include_groups_, include_channels_);
-}
-
-td_api::object_ptr<td_api::chatFolderInfo> DialogFilter::get_chat_folder_info_object() const {
-  auto name =
-      td_api::make_object<td_api::chatFolderName>(get_formatted_text_object(nullptr, title_, true, -1), animate_title_);
-  return td_api::make_object<td_api::chatFolderInfo>(
-      dialog_filter_id_.get(), std::move(name),
-      td_api::make_object<td_api::chatFolderIcon>(get_chosen_or_default_icon_name()), color_id_, is_shareable_,
-      has_my_invites_);
-}
-
-void DialogFilter::for_each_dialog(std::function<void(const InputDialogId &)> callback) const {
-  for (auto input_dialog_ids : {&pinned_dialog_ids_, &excluded_dialog_ids_, &included_dialog_ids_}) {
-    for (const auto &input_dialog_id : *input_dialog_ids) {
-      callback(input_dialog_id);
-    }
-  }
-}
-
-// merges changes from old_server_filter to new_server_filter in old_filter
-unique_ptr<DialogFilter> DialogFilter::merge_dialog_filter_changes(const DialogFilter *old_filter,
-                                                                   const DialogFilter *old_server_filter,
-                                                                   const DialogFilter *new_server_filter) {
-  CHECK(old_filter != nullptr);
-  CHECK(old_server_filter != nullptr);
-  CHECK(new_server_filter != nullptr);
-  CHECK(old_filter->dialog_filter_id_ == old_server_filter->dialog_filter_id_);
-  CHECK(old_filter->dialog_filter_id_ == new_server_filter->dialog_filter_id_);
-  auto dialog_filter_id = old_filter->dialog_filter_id_;
-  auto new_filter = make_unique<DialogFilter>(*old_filter);
-  new_filter->dialog_filter_id_ = dialog_filter_id;
-
-  auto merge_ordered_changes = [dialog_filter_id](auto &new_dialog_ids, auto old_server_dialog_ids,
-                                                  auto new_server_dialog_ids) {
-    if (old_server_dialog_ids == new_server_dialog_ids) {
-      LOG(INFO) << "Pinned chats were not changed remotely in " << dialog_filter_id << ", keep local changes";
-      return;
-    }
-
-    if (InputDialogId::are_equivalent(new_dialog_ids, old_server_dialog_ids)) {
-      LOG(INFO) << "Pinned chats were not changed locally in " << dialog_filter_id << ", keep remote changes";
-
-      size_t kept_server_dialogs = 0;
-      FlatHashSet<DialogId, DialogIdHash> removed_dialog_ids;
-      auto old_it = old_server_dialog_ids.rbegin();
-      for (auto &input_dialog_id : reversed(new_server_dialog_ids)) {
-        auto dialog_id = input_dialog_id.get_dialog_id();
-        while (old_it < old_server_dialog_ids.rend()) {
-          if (old_it->get_dialog_id() == dialog_id) {
-            kept_server_dialogs++;
-            ++old_it;
-            break;
-          }
-
-          // remove the dialog, it could be added back later
-          CHECK(old_it->get_dialog_id().is_valid());
-          removed_dialog_ids.insert(old_it->get_dialog_id());
-          ++old_it;
-        }
-      }
-      while (old_it < old_server_dialog_ids.rend()) {
-        // remove the dialog, it could be added back later
-        CHECK(old_it->get_dialog_id().is_valid());
-        removed_dialog_ids.insert(old_it->get_dialog_id());
-        ++old_it;
-      }
-      td::remove_if(new_dialog_ids, [&removed_dialog_ids](auto input_dialog_id) {
-        return removed_dialog_ids.count(input_dialog_id.get_dialog_id()) > 0;
-      });
-      new_dialog_ids.insert(new_dialog_ids.begin(), new_server_dialog_ids.begin(),
-                            new_server_dialog_ids.end() - kept_server_dialogs);
-    } else {
-      LOG(WARNING) << "Ignore remote changes of pinned chats in " << dialog_filter_id;
-      // there are both local and remote changes; ignore remote changes for now
-    }
-  };
-
-  auto merge_changes = [](auto &new_dialog_ids, const auto &old_server_dialog_ids, const auto &new_server_dialog_ids) {
-    if (old_server_dialog_ids == new_server_dialog_ids) {
-      // fast path
-      return;
-    }
-
-    // merge additions and deletions from other clients to the local changes
-    FlatHashSet<DialogId, DialogIdHash> deleted_dialog_ids;
-    for (const auto &old_dialog_id : old_server_dialog_ids) {
-      CHECK(old_dialog_id.get_dialog_id().is_valid());
-      deleted_dialog_ids.insert(old_dialog_id.get_dialog_id());
-    }
-    FlatHashSet<DialogId, DialogIdHash> added_dialog_ids;
-    for (const auto &new_dialog_id : new_server_dialog_ids) {
-      auto dialog_id = new_dialog_id.get_dialog_id();
-      if (deleted_dialog_ids.erase(dialog_id) == 0) {
-        added_dialog_ids.insert(dialog_id);
-      }
-    }
-    vector<InputDialogId> result;
-    for (const auto &input_dialog_id : new_dialog_ids) {
-      // do not add dialog twice
-      added_dialog_ids.erase(input_dialog_id.get_dialog_id());
-    }
-    for (const auto &new_dialog_id : new_server_dialog_ids) {
-      if (added_dialog_ids.count(new_dialog_id.get_dialog_id()) == 1) {
-        result.push_back(new_dialog_id);
-      }
-    }
-    for (const auto &input_dialog_id : new_dialog_ids) {
-      if (deleted_dialog_ids.count(input_dialog_id.get_dialog_id()) == 0) {
-        result.push_back(input_dialog_id);
-      }
-    }
-    new_dialog_ids = std::move(result);
-  };
-
-  merge_ordered_changes(new_filter->pinned_dialog_ids_, old_server_filter->pinned_dialog_ids_,
-                        new_server_filter->pinned_dialog_ids_);
-  merge_changes(new_filter->included_dialog_ids_, old_server_filter->included_dialog_ids_,
-                new_server_filter->included_dialog_ids_);
-  merge_changes(new_filter->excluded_dialog_ids_, old_server_filter->excluded_dialog_ids_,
-                new_server_filter->excluded_dialog_ids_);
-
-  {
-    FlatHashSet<DialogId, DialogIdHash> added_dialog_ids;
-    auto remove_duplicates = [&added_dialog_ids](auto &input_dialog_ids) {
-      td::remove_if(input_dialog_ids, [&added_dialog_ids](auto input_dialog_id) {
-        auto dialog_id = input_dialog_id.get_dialog_id();
-        CHECK(dialog_id.is_valid());
-        return !added_dialog_ids.insert(dialog_id).second;
-      });
-    };
-    remove_duplicates(new_filter->pinned_dialog_ids_);
-    remove_duplicates(new_filter->included_dialog_ids_);
-    remove_duplicates(new_filter->excluded_dialog_ids_);
-  }
-
-  auto update_value = [](auto &new_value, const auto &old_server_value, const auto &new_server_value) {
-    // if the value was changed from other client and wasn't changed from the current client, update it
-    if (new_server_value != old_server_value && old_server_value == new_value) {
-      new_value = new_server_value;
-    }
-  };
-
-  update_value(new_filter->exclude_muted_, old_server_filter->exclude_muted_, new_server_filter->exclude_muted_);
-  update_value(new_filter->exclude_read_, old_server_filter->exclude_read_, new_server_filter->exclude_read_);
-  update_value(new_filter->exclude_archived_, old_server_filter->exclude_archived_,
-               new_server_filter->exclude_archived_);
-  update_value(new_filter->include_contacts_, old_server_filter->include_contacts_,
-               new_server_filter->include_contacts_);
-  update_value(new_filter->include_non_contacts_, old_server_filter->include_non_contacts_,
-               new_server_filter->include_non_contacts_);
-  update_value(new_filter->include_bots_, old_server_filter->include_bots_, new_server_filter->include_bots_);
-  update_value(new_filter->include_groups_, old_server_filter->include_groups_, new_server_filter->include_groups_);
-  update_value(new_filter->include_channels_, old_server_filter->include_channels_,
-               new_server_filter->include_channels_);
-  update_value(new_filter->is_shareable_, old_server_filter->is_shareable_, new_server_filter->is_shareable_);
-  update_value(new_filter->has_my_invites_, old_server_filter->has_my_invites_, new_server_filter->has_my_invites_);
-
-  if (new_filter->is_shareable_) {
-    new_filter->exclude_muted_ = false;
-    new_filter->exclude_read_ = false;
-    new_filter->exclude_archived_ = false;
-    new_filter->include_contacts_ = false;
-    new_filter->include_non_contacts_ = false;
-    new_filter->include_bots_ = false;
-    new_filter->include_groups_ = false;
-    new_filter->include_channels_ = false;
-    new_filter->excluded_dialog_ids_.clear();
-  } else {
-    new_filter->has_my_invites_ = false;
-  }
-
-  if (new_filter->check_limits().is_error()) {
-    LOG(WARNING) << "Failed to merge local and remote changes in " << new_filter->dialog_filter_id_
-                 << ", keep only local changes";
-    *new_filter = *old_filter;
-  }
-
-  update_value(new_filter->title_, old_server_filter->title_, new_server_filter->title_);
-  update_value(new_filter->animate_title_, old_server_filter->animate_title_, new_server_filter->animate_title_);
-  update_value(new_filter->emoji_, old_server_filter->emoji_, new_server_filter->emoji_);
-  update_value(new_filter->color_id_, old_server_filter->color_id_, new_server_filter->color_id_);
-
-  LOG(INFO) << "Old  local filter: " << *old_filter;
-  LOG(INFO) << "Old server filter: " << *old_server_filter;
-  LOG(INFO) << "New server filter: " << *new_server_filter;
-  LOG(INFO) << "New  local filter: " << *new_filter;
-
-  return new_filter;
-}
-
-void DialogFilter::sort_input_dialog_ids(const Td *td, const char *source) {
-  if (!include_contacts_ && !include_non_contacts_ && !include_bots_ && !include_groups_ && !include_channels_) {
-    excluded_dialog_ids_.clear();
-  }
-
-  auto sort_input_dialog_ids = [user_manager = td->user_manager_.get()](vector<InputDialogId> &input_dialog_ids) {
-    std::sort(input_dialog_ids.begin(), input_dialog_ids.end(), [user_manager](InputDialogId lhs, InputDialogId rhs) {
-      auto get_order = [user_manager](InputDialogId input_dialog_id) {
-        auto dialog_id = input_dialog_id.get_dialog_id();
-        if (dialog_id.get_type() != DialogType::SecretChat) {
-          return dialog_id.get() * 10;
-        }
-        auto user_id = user_manager->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-        return DialogId(user_id).get() * 10 + 1;
-      };
-      return get_order(lhs) < get_order(rhs);
-    });
-  };
-
-  sort_input_dialog_ids(excluded_dialog_ids_);
-  sort_input_dialog_ids(included_dialog_ids_);
-
-  FlatHashSet<DialogId, DialogIdHash> all_dialog_ids;
-  for_each_dialog([&](const InputDialogId &input_dialog_id) {
-    auto dialog_id = input_dialog_id.get_dialog_id();
-    CHECK(dialog_id.is_valid());
-    LOG_CHECK(all_dialog_ids.insert(dialog_id).second) << source << ' ' << dialog_id << ' ' << *this;
-  });
-}
-
-vector<DialogId> DialogFilter::get_dialogs_for_invite_link(Td *td) {
-  if (!excluded_dialog_ids_.empty() || exclude_muted_ || exclude_read_ || exclude_archived_ || include_contacts_ ||
-      include_non_contacts_ || include_bots_ || include_groups_ || include_channels_) {
-    return {};
-  }
-  vector<DialogId> result;
-  for_each_dialog([&](const InputDialogId &input_dialog_id) {
-    auto dialog_id = input_dialog_id.get_dialog_id();
-    if (!td->dialog_manager_->have_dialog_force(dialog_id, "get_dialogs_for_invite_link")) {
-      return;
-    }
-    bool is_good = false;
-    switch (dialog_id.get_type()) {
-      case DialogType::Chat: {
-        auto chat_id = dialog_id.get_chat_id();
-        // the user can manage invite links in the chat
-        is_good = td->chat_manager_->get_chat_status(chat_id).can_manage_invite_links();
-        break;
-      }
-      case DialogType::Channel: {
-        auto channel_id = dialog_id.get_channel_id();
-        // the user can manage invite links in the chat
-        // or the chat is a public chat, which can be joined without administrator approval
-        is_good = td->chat_manager_->get_channel_status(channel_id).can_manage_invite_links() ||
-                  (td->chat_manager_->is_channel_public(channel_id) &&
-                   !td->chat_manager_->get_channel_join_request(channel_id));
-        break;
-      }
-      default:
-        break;
-    }
-    if (is_good) {
-      result.push_back(dialog_id);
-    }
-  });
-  return result;
-}
-
-vector<FolderId> DialogFilter::get_folder_ids() const {
-  if (exclude_archived_ && pinned_dialog_ids_.empty() && included_dialog_ids_.empty()) {
-    return {FolderId::main()};
-  }
-  return {FolderId::main(), FolderId::archive()};
-}
-
-bool DialogFilter::need_dialog(const Td *td, const DialogFilterDialogInfo &dialog_info) const {
-  auto dialog_id = dialog_info.dialog_id_;
-  if (is_dialog_included(dialog_id)) {
-    return true;
-  }
-  if (InputDialogId::contains(excluded_dialog_ids_, dialog_id)) {
-    return false;
-  }
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    auto user_id = td->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-    if (user_id.is_valid()) {
-      auto user_dialog_id = DialogId(user_id);
-      if (is_dialog_included(user_dialog_id)) {
-        return true;
-      }
-      if (InputDialogId::contains(excluded_dialog_ids_, user_dialog_id)) {
-        return false;
-      }
-    }
-  }
-  if (!dialog_info.has_unread_mentions_) {
-    if (exclude_muted_ && dialog_info.is_muted_) {
-      return false;
-    }
-    if (exclude_read_ && !dialog_info.has_unread_messages_) {
-      return false;
-    }
-  }
-  if (exclude_archived_ && dialog_info.folder_id_ == FolderId::archive()) {
-    return false;
-  }
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      auto user_id = dialog_id.get_user_id();
-      if (td->user_manager_->is_user_bot(user_id)) {
-        return include_bots_;
-      }
-      if (user_id == td->user_manager_->get_my_id() || td->user_manager_->is_user_contact(user_id)) {
-        return include_contacts_;
-      }
-      return include_non_contacts_;
-    }
-    case DialogType::Chat:
-      return include_groups_;
-    case DialogType::Channel:
-      return td->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id()) ? include_channels_ : include_groups_;
-    case DialogType::SecretChat: {
-      auto user_id = td->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      if (td->user_manager_->is_user_bot(user_id)) {
-        return include_bots_;
-      }
-      if (td->user_manager_->is_user_contact(user_id)) {
-        return include_contacts_;
-      }
-      return include_non_contacts_;
-    }
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-vector<DialogFilterId> DialogFilter::get_dialog_filter_ids(const vector<unique_ptr<DialogFilter>> &dialog_filters,
-                                                           int32 main_dialog_list_position) {
-  auto result = transform(dialog_filters, [](const auto &dialog_filter) { return dialog_filter->dialog_filter_id_; });
-  if (static_cast<size_t>(main_dialog_list_position) <= result.size()) {
-    result.insert(result.begin() + main_dialog_list_position, DialogFilterId());
-  }
-  return result;
-}
-
-bool DialogFilter::set_dialog_filters_order(vector<unique_ptr<DialogFilter>> &dialog_filters,
-                                            vector<DialogFilterId> dialog_filter_ids) {
-  auto old_dialog_filter_ids = get_dialog_filter_ids(dialog_filters, -1);
-  if (old_dialog_filter_ids == dialog_filter_ids) {
-    return false;
-  }
-  LOG(INFO) << "Reorder chat folders from " << old_dialog_filter_ids << " to " << dialog_filter_ids;
-
-  if (dialog_filter_ids.size() != old_dialog_filter_ids.size()) {
-    for (auto dialog_filter_id : old_dialog_filter_ids) {
-      if (!td::contains(dialog_filter_ids, dialog_filter_id)) {
-        dialog_filter_ids.push_back(dialog_filter_id);
-      }
-    }
-    CHECK(dialog_filter_ids.size() == old_dialog_filter_ids.size());
-  }
-  if (old_dialog_filter_ids == dialog_filter_ids) {
-    return false;
-  }
-
-  CHECK(dialog_filter_ids.size() == dialog_filters.size());
-  for (size_t i = 0; i < dialog_filters.size(); i++) {
-    for (size_t j = i; j < dialog_filters.size(); j++) {
-      if (dialog_filters[j]->dialog_filter_id_ == dialog_filter_ids[i]) {
-        if (i != j) {
-          std::swap(dialog_filters[i], dialog_filters[j]);
-        }
-        break;
-      }
-    }
-    CHECK(dialog_filters[i]->dialog_filter_id_ == dialog_filter_ids[i]);
-  }
-  return true;
-}
-
-bool DialogFilter::are_similar(const DialogFilter &lhs, const DialogFilter &rhs) {
-  if (lhs.title_ == rhs.title_) {
-    return true;
-  }
-  if (!are_flags_equal(lhs, rhs)) {
-    return false;
-  }
-
-  vector<InputDialogId> empty_input_dialog_ids;
-  if (InputDialogId::are_equivalent(lhs.excluded_dialog_ids_, empty_input_dialog_ids) !=
-      InputDialogId::are_equivalent(rhs.excluded_dialog_ids_, empty_input_dialog_ids)) {
-    return false;
-  }
-  if ((InputDialogId::are_equivalent(lhs.pinned_dialog_ids_, empty_input_dialog_ids) &&
-       InputDialogId::are_equivalent(lhs.included_dialog_ids_, empty_input_dialog_ids)) !=
-      (InputDialogId::are_equivalent(rhs.pinned_dialog_ids_, empty_input_dialog_ids) &&
-       InputDialogId::are_equivalent(rhs.included_dialog_ids_, empty_input_dialog_ids))) {
-    return false;
-  }
-
-  return true;
-}
-
-bool DialogFilter::are_equivalent(const DialogFilter &lhs, const DialogFilter &rhs) {
-  return lhs.title_ == rhs.title_ && lhs.animate_title_ == rhs.animate_title_ && lhs.emoji_ == rhs.emoji_ &&
-         lhs.color_id_ == rhs.color_id_ && lhs.is_shareable_ == rhs.is_shareable_ &&
-         lhs.has_my_invites_ == rhs.has_my_invites_ &&
-         InputDialogId::are_equivalent(lhs.pinned_dialog_ids_, rhs.pinned_dialog_ids_) &&
-         InputDialogId::are_equivalent(lhs.included_dialog_ids_, rhs.included_dialog_ids_) &&
-         InputDialogId::are_equivalent(lhs.excluded_dialog_ids_, rhs.excluded_dialog_ids_) && are_flags_equal(lhs, rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogFilter &filter) {
-  return string_builder << filter.dialog_filter_id_ << " (pinned " << filter.pinned_dialog_ids_ << ", included "
-                        << filter.included_dialog_ids_ << ", excluded " << filter.excluded_dialog_ids_ << ", "
-                        << filter.exclude_muted_ << ' ' << filter.exclude_read_ << ' ' << filter.exclude_archived_
-                        << '/' << filter.include_contacts_ << ' ' << filter.include_non_contacts_ << ' '
-                        << filter.include_bots_ << ' ' << filter.include_groups_ << ' ' << filter.include_channels_
-                        << ')';
-}
-
-void DialogFilter::init_icon_names() {
-  static bool is_inited = [&] {
-    vector<string> emojis{"\xF0\x9F\x92\xAC",         "\xE2\x9C\x85",     "\xF0\x9F\x94\x94",
-                          "\xF0\x9F\xA4\x96",         "\xF0\x9F\x93\xA2", "\xF0\x9F\x91\xA5",
-                          "\xF0\x9F\x91\xA4",         "\xF0\x9F\x93\x81", "\xF0\x9F\x93\x8B",
-                          "\xF0\x9F\x90\xB1",         "\xF0\x9F\x91\x91", "\xE2\xAD\x90\xEF\xB8\x8F",
-                          "\xF0\x9F\x8C\xB9",         "\xF0\x9F\x8E\xAE", "\xF0\x9F\x8F\xA0",
-                          "\xE2\x9D\xA4\xEF\xB8\x8F", "\xF0\x9F\x8E\xAD", "\xF0\x9F\x8D\xB8",
-                          "\xE2\x9A\xBD\xEF\xB8\x8F", "\xF0\x9F\x8E\x93", "\xF0\x9F\x93\x88",
-                          "\xE2\x9C\x88\xEF\xB8\x8F", "\xF0\x9F\x92\xBC", "\xF0\x9F\x9B\xAB",
-                          "\xF0\x9F\x93\x95",         "\xF0\x9F\x92\xA1", "\xF0\x9F\x91\x8D",
-                          "\xF0\x9F\x92\xB0",         "\xF0\x9F\x8E\xB5", "\xF0\x9F\x8E\xA8"};
-    vector<string> icon_names{"All",   "Unread", "Unmuted", "Bots",     "Channels", "Groups", "Private", "Custom",
-                              "Setup", "Cat",    "Crown",   "Favorite", "Flower",   "Game",   "Home",    "Love",
-                              "Mask",  "Party",  "Sport",   "Study",    "Trade",    "Travel", "Work",    "Airplane",
-                              "Book",  "Light",  "Like",    "Money",    "Note",     "Palette"};
-
-    CHECK(emojis.size() == icon_names.size());
-    for (size_t i = 0; i < emojis.size(); i++) {
-      remove_emoji_modifiers_in_place(emojis[i]);
-      bool is_inserted = emoji_to_icon_name_.emplace(emojis[i], icon_names[i]).second &&
-                         icon_name_to_emoji_.emplace(icon_names[i], emojis[i]).second;
-      CHECK(is_inserted);
-    }
-    return true;
-  }();
-  CHECK(is_inited);
-}
-
-bool DialogFilter::is_valid_color_id(int32 color_id) {
-  return -1 <= color_id && color_id <= 6;
-}
-
-bool DialogFilter::are_flags_equal(const DialogFilter &lhs, const DialogFilter &rhs) {
-  return lhs.exclude_muted_ == rhs.exclude_muted_ && lhs.exclude_read_ == rhs.exclude_read_ &&
-         lhs.exclude_archived_ == rhs.exclude_archived_ && lhs.include_contacts_ == rhs.include_contacts_ &&
-         lhs.include_non_contacts_ == rhs.include_non_contacts_ && lhs.include_bots_ == rhs.include_bots_ &&
-         lhs.include_groups_ == rhs.include_groups_ && lhs.include_channels_ == rhs.include_channels_;
-}
-
-FlatHashMap<string, string> DialogFilter::emoji_to_icon_name_;
-FlatHashMap<string, string> DialogFilter::icon_name_to_emoji_;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilter.h b/third-party/td/td/td/telegram/DialogFilter.h
deleted file mode 100644
index d9f4cb096c..0000000000
--- a/third-party/td/td/td/telegram/DialogFilter.h
+++ /dev/null
@@ -1,172 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogFilterDialogInfo.h"
-#include "td/telegram/DialogFilterId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/InputDialogId.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <functional>
-
-namespace td {
-
-class Td;
-
-class DialogFilter {
- public:
-  static int32 get_max_filter_dialogs();
-
-  static unique_ptr<DialogFilter> get_dialog_filter(telegram_api::object_ptr<telegram_api::DialogFilter> filter_ptr,
-                                                    bool with_id);
-
-  static Result<unique_ptr<DialogFilter>> create_dialog_filter(Td *td, DialogFilterId dialog_filter_id,
-                                                               td_api::object_ptr<td_api::chatFolder> filter);
-
-  void set_dialog_is_pinned(InputDialogId input_dialog_id, bool is_pinned);
-
-  void set_pinned_dialog_ids(vector<InputDialogId> &&input_dialog_ids);
-
-  void include_dialog(InputDialogId input_dialog_id);
-
-  void remove_secret_chat_dialog_ids();
-
-  void remove_dialog_id(DialogId dialog_id);
-
-  bool is_empty(bool for_server) const;
-
-  bool is_shareable() const {
-    return is_shareable_;
-  }
-
-  const DialogFilterId &get_dialog_filter_id() const {
-    return dialog_filter_id_;
-  }
-
-  const vector<InputDialogId> &get_pinned_input_dialog_ids() const {
-    return pinned_dialog_ids_;
-  }
-
-  void set_has_my_invite_links(bool has_my_invite_links) {
-    has_my_invites_ = has_my_invite_links;
-  }
-
-  bool is_dialog_pinned(DialogId dialog_id) const;
-
-  bool is_dialog_included(DialogId dialog_id) const;
-
-  bool can_include_dialog(DialogId dialog_id) const;
-
-  Status check_limits() const;
-
-  void update_from(const DialogFilter &old_filter);
-
-  static string get_emoji_by_icon_name(const string &icon_name);
-
-  static string get_icon_name_by_emoji(const string &emoji);
-
-  string get_icon_name() const;
-
-  static string get_default_icon_name(const td_api::chatFolder *filter);
-
-  telegram_api::object_ptr<telegram_api::DialogFilter> get_input_dialog_filter() const;
-
-  td_api::object_ptr<td_api::chatFolder> get_chat_folder_object(const vector<DialogId> &unknown_dialog_ids) const;
-
-  td_api::object_ptr<td_api::chatFolderInfo> get_chat_folder_info_object() const;
-
-  void for_each_dialog(std::function<void(const InputDialogId &)> callback) const;
-
-  // merges changes from old_server_filter to new_server_filter in old_filter
-  static unique_ptr<DialogFilter> merge_dialog_filter_changes(const DialogFilter *old_filter,
-                                                              const DialogFilter *old_server_filter,
-                                                              const DialogFilter *new_server_filter);
-
-  void sort_input_dialog_ids(const Td *td, const char *source);
-
-  vector<DialogId> get_dialogs_for_invite_link(Td *td);
-
-  vector<FolderId> get_folder_ids() const;
-
-  bool need_dialog(const Td *td, const DialogFilterDialogInfo &dialog_info) const;
-
-  static vector<DialogFilterId> get_dialog_filter_ids(const vector<unique_ptr<DialogFilter>> &dialog_filters,
-                                                      int32 main_dialog_list_position);
-
-  static bool set_dialog_filters_order(vector<unique_ptr<DialogFilter>> &dialog_filters,
-                                       vector<DialogFilterId> dialog_filter_ids);
-
-  static bool are_similar(const DialogFilter &lhs, const DialogFilter &rhs);
-
-  static bool are_equivalent(const DialogFilter &lhs, const DialogFilter &rhs);
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  DialogFilterId dialog_filter_id_;
-  FormattedText title_;
-  string emoji_;
-  vector<InputDialogId> pinned_dialog_ids_;
-  vector<InputDialogId> included_dialog_ids_;
-  vector<InputDialogId> excluded_dialog_ids_;
-  int32 color_id_ = -1;
-  bool exclude_muted_ = false;
-  bool exclude_read_ = false;
-  bool exclude_archived_ = false;
-  bool include_contacts_ = false;
-  bool include_non_contacts_ = false;
-  bool include_bots_ = false;
-  bool include_groups_ = false;
-  bool include_channels_ = false;
-  bool is_shareable_ = false;
-  bool has_my_invites_ = false;
-  bool animate_title_ = false;
-
-  static FlatHashMap<string, string> emoji_to_icon_name_;
-  static FlatHashMap<string, string> icon_name_to_emoji_;
-
-  static bool is_valid_color_id(int32 color_id);
-
-  static bool are_flags_equal(const DialogFilter &lhs, const DialogFilter &rhs);
-
-  static void init_icon_names();
-
-  string get_chosen_or_default_icon_name() const;
-
-  friend bool operator==(const DialogFilter &lhs, const DialogFilter &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogFilter &filter);
-};
-
-inline bool operator==(const DialogFilter &lhs, const DialogFilter &rhs) {
-  return lhs.dialog_filter_id_ == rhs.dialog_filter_id_ && lhs.title_ == rhs.title_ && lhs.emoji_ == rhs.emoji_ &&
-         lhs.color_id_ == rhs.color_id_ && lhs.is_shareable_ == rhs.is_shareable_ &&
-         lhs.has_my_invites_ == rhs.has_my_invites_ && lhs.pinned_dialog_ids_ == rhs.pinned_dialog_ids_ &&
-         lhs.included_dialog_ids_ == rhs.included_dialog_ids_ && lhs.excluded_dialog_ids_ == rhs.excluded_dialog_ids_ &&
-         DialogFilter::are_flags_equal(lhs, rhs) && lhs.animate_title_ == rhs.animate_title_;
-}
-
-inline bool operator!=(const DialogFilter &lhs, const DialogFilter &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogFilter &filter);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilter.hpp b/third-party/td/td/td/telegram/DialogFilter.hpp
deleted file mode 100644
index 7f2c3fe951..0000000000
--- a/third-party/td/td/td/telegram/DialogFilter.hpp
+++ /dev/null
@@ -1,111 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogFilter.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void DialogFilter::store(StorerT &storer) const {
-  using td::store;
-  bool has_pinned_dialog_ids = !pinned_dialog_ids_.empty();
-  bool has_included_dialog_ids = !included_dialog_ids_.empty();
-  bool has_excluded_dialog_ids = !excluded_dialog_ids_.empty();
-  bool has_color_id = color_id_ != -1;
-  bool has_title_entities = !title_.entities.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(exclude_muted_);
-  STORE_FLAG(exclude_read_);
-  STORE_FLAG(exclude_archived_);
-  STORE_FLAG(include_contacts_);
-  STORE_FLAG(include_non_contacts_);
-  STORE_FLAG(include_bots_);
-  STORE_FLAG(include_groups_);
-  STORE_FLAG(include_channels_);
-  STORE_FLAG(has_pinned_dialog_ids);
-  STORE_FLAG(has_included_dialog_ids);
-  STORE_FLAG(has_excluded_dialog_ids);
-  STORE_FLAG(is_shareable_);
-  STORE_FLAG(has_my_invites_);
-  STORE_FLAG(has_color_id);
-  STORE_FLAG(has_title_entities);
-  STORE_FLAG(animate_title_);
-  END_STORE_FLAGS();
-  store(dialog_filter_id_, storer);
-  store(title_.text, storer);
-  if (has_title_entities) {
-    store(title_.entities, storer);
-  }
-  store(emoji_, storer);
-  if (has_pinned_dialog_ids) {
-    store(pinned_dialog_ids_, storer);
-  }
-  if (has_included_dialog_ids) {
-    store(included_dialog_ids_, storer);
-  }
-  if (has_excluded_dialog_ids) {
-    store(excluded_dialog_ids_, storer);
-  }
-  if (has_color_id) {
-    store(color_id_, storer);
-  }
-}
-
-template <class ParserT>
-void DialogFilter::parse(ParserT &parser) {
-  using td::parse;
-  bool has_pinned_dialog_ids;
-  bool has_included_dialog_ids;
-  bool has_excluded_dialog_ids;
-  bool has_color_id;
-  bool has_title_entities;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(exclude_muted_);
-  PARSE_FLAG(exclude_read_);
-  PARSE_FLAG(exclude_archived_);
-  PARSE_FLAG(include_contacts_);
-  PARSE_FLAG(include_non_contacts_);
-  PARSE_FLAG(include_bots_);
-  PARSE_FLAG(include_groups_);
-  PARSE_FLAG(include_channels_);
-  PARSE_FLAG(has_pinned_dialog_ids);
-  PARSE_FLAG(has_included_dialog_ids);
-  PARSE_FLAG(has_excluded_dialog_ids);
-  PARSE_FLAG(is_shareable_);
-  PARSE_FLAG(has_my_invites_);
-  PARSE_FLAG(has_color_id);
-  PARSE_FLAG(has_title_entities);
-  PARSE_FLAG(animate_title_);
-  END_PARSE_FLAGS();
-  parse(dialog_filter_id_, parser);
-  parse(title_.text, parser);
-  if (has_title_entities) {
-    parse(title_.entities, parser);
-    keep_only_custom_emoji(title_);
-  }
-  parse(emoji_, parser);
-  if (has_pinned_dialog_ids) {
-    parse(pinned_dialog_ids_, parser);
-  }
-  if (has_included_dialog_ids) {
-    parse(included_dialog_ids_, parser);
-  }
-  if (has_excluded_dialog_ids) {
-    parse(excluded_dialog_ids_, parser);
-  }
-  if (has_color_id) {
-    parse(color_id_, parser);
-  } else {
-    color_id_ = -1;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilterDialogInfo.h b/third-party/td/td/td/telegram/DialogFilterDialogInfo.h
deleted file mode 100644
index c68c12b71c..0000000000
--- a/third-party/td/td/td/telegram/DialogFilterDialogInfo.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/FolderId.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct DialogFilterDialogInfo {
-  DialogId dialog_id_;
-  FolderId folder_id_;
-  bool has_unread_mentions_ = false;
-  bool is_muted_ = false;
-  bool has_unread_messages_ = false;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilterId.h b/third-party/td/td/td/telegram/DialogFilterId.h
deleted file mode 100644
index ef782f4f9a..0000000000
--- a/third-party/td/td/td/telegram/DialogFilterId.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class DialogFilterId {
-  int32 id = 0;
-
- public:
-  DialogFilterId() = default;
-
-  explicit constexpr DialogFilterId(int32 dialog_filter_id) : id(dialog_filter_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  DialogFilterId(T dialog_filter_id) = delete;
-
-  static constexpr DialogFilterId min() {
-    return DialogFilterId(static_cast<int32>(2));
-  }
-  static constexpr DialogFilterId max() {
-    return DialogFilterId(static_cast<int32>(255));
-  }
-
-  bool is_valid() const {
-    // don't check max() for greater future flexibility
-    return id >= min().get();
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  telegram_api::object_ptr<telegram_api::inputChatlistDialogFilter> get_input_chatlist() const {
-    return telegram_api::make_object<telegram_api::inputChatlistDialogFilter>(id);
-  }
-
-  bool operator==(const DialogFilterId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const DialogFilterId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_int();
-  }
-};
-
-struct DialogFilterIdHash {
-  uint32 operator()(DialogFilterId dialog_filter_id) const {
-    return Hash<int32>()(dialog_filter_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, DialogFilterId dialog_filter_id) {
-  return string_builder << "folder " << dialog_filter_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilterInviteLink.cpp b/third-party/td/td/td/telegram/DialogFilterInviteLink.cpp
deleted file mode 100644
index 1e65db490e..0000000000
--- a/third-party/td/td/td/telegram/DialogFilterInviteLink.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogFilterInviteLink.h"
-
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-DialogFilterInviteLink::DialogFilterInviteLink(
-    Td *td, telegram_api::object_ptr<telegram_api::exportedChatlistInvite> exported_invite) {
-  CHECK(exported_invite != nullptr);
-  LOG_IF(ERROR, !is_valid_invite_link(exported_invite->url_)) << "Unsupported " << to_string(exported_invite);
-  invite_link_ = std::move(exported_invite->url_);
-  title_ = std::move(exported_invite->title_);
-  for (const auto &peer : exported_invite->peers_) {
-    DialogId dialog_id(peer);
-    if (dialog_id.is_valid()) {
-      td->dialog_manager_->force_create_dialog(dialog_id, "DialogFilterInviteLink");
-      dialog_ids_.push_back(dialog_id);
-    }
-  }
-}
-
-td_api::object_ptr<td_api::chatFolderInviteLink> DialogFilterInviteLink::get_chat_folder_invite_link_object(
-    const Td *td) const {
-  return td_api::make_object<td_api::chatFolderInviteLink>(
-      invite_link_, title_, td->dialog_manager_->get_chat_ids_object(dialog_ids_, "chatFolderInviteLink"));
-}
-
-bool DialogFilterInviteLink::is_valid_invite_link(Slice invite_link) {
-  return !LinkManager::get_dialog_filter_invite_link_slug(invite_link).empty();
-}
-
-bool operator==(const DialogFilterInviteLink &lhs, const DialogFilterInviteLink &rhs) {
-  return lhs.invite_link_ == rhs.invite_link_ && lhs.title_ == rhs.title_ && lhs.dialog_ids_ == rhs.dialog_ids_;
-}
-
-bool operator!=(const DialogFilterInviteLink &lhs, const DialogFilterInviteLink &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogFilterInviteLink &invite_link) {
-  return string_builder << "FolderInviteLink[" << invite_link.invite_link_ << '(' << invite_link.title_ << ')'
-                        << invite_link.dialog_ids_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilterInviteLink.h b/third-party/td/td/td/telegram/DialogFilterInviteLink.h
deleted file mode 100644
index 74f368535e..0000000000
--- a/third-party/td/td/td/telegram/DialogFilterInviteLink.h
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class DialogFilterInviteLink {
-  string invite_link_;
-  string title_;
-  vector<DialogId> dialog_ids_;
-
-  friend bool operator==(const DialogFilterInviteLink &lhs, const DialogFilterInviteLink &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogFilterInviteLink &invite_link);
-
- public:
-  DialogFilterInviteLink() = default;
-
-  DialogFilterInviteLink(Td *td, telegram_api::object_ptr<telegram_api::exportedChatlistInvite> exported_invite);
-
-  td_api::object_ptr<td_api::chatFolderInviteLink> get_chat_folder_invite_link_object(const Td *td) const;
-
-  bool is_valid() const {
-    return !invite_link_.empty();
-  }
-
-  static bool is_valid_invite_link(Slice invite_link);
-};
-
-bool operator==(const DialogFilterInviteLink &lhs, const DialogFilterInviteLink &rhs);
-
-bool operator!=(const DialogFilterInviteLink &lhs, const DialogFilterInviteLink &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogFilterInviteLink &invite_link);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilterManager.cpp b/third-party/td/td/td/telegram/DialogFilterManager.cpp
deleted file mode 100644
index 4675df7b9e..0000000000
--- a/third-party/td/td/td/telegram/DialogFilterManager.cpp
+++ /dev/null
@@ -1,2210 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogFilterManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogFilter.h"
-#include "td/telegram/DialogFilter.hpp"
-#include "td/telegram/DialogFilterInviteLink.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageEntity.hpp"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Version.h"
-
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/tl_helpers.h"
-
-#include <unordered_set>
-
-namespace td {
-
-class GetDialogFiltersQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_dialogFilters>> promise_;
-
- public:
-  explicit GetDialogFiltersQuery(Promise<telegram_api::object_ptr<telegram_api::messages_dialogFilters>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getDialogFilters()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getDialogFilters>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateDialogFilterQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UpdateDialogFilterQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id, telegram_api::object_ptr<telegram_api::DialogFilter> filter) {
-    int32 flags = 0;
-    if (filter != nullptr) {
-      flags |= telegram_api::messages_updateDialogFilter::FILTER_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_updateDialogFilter(flags, dialog_filter_id.get(), std::move(filter))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_updateDialogFilter>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(INFO) << "Receive result for UpdateDialogFilterQuery: " << result_ptr.ok();
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(ERROR) << "Receive error for UpdateDialogFilterQuery: " << status;
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateDialogFiltersOrderQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UpdateDialogFiltersOrderQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const vector<DialogFilterId> &dialog_filter_ids, int32 main_dialog_list_position) {
-    auto filter_ids = transform(dialog_filter_ids, [](auto dialog_filter_id) { return dialog_filter_id.get(); });
-    CHECK(0 <= main_dialog_list_position);
-    CHECK(main_dialog_list_position <= static_cast<int32>(filter_ids.size()));
-    filter_ids.insert(filter_ids.begin() + main_dialog_list_position, 0);
-    send_query(G()->net_query_creator().create(telegram_api::messages_updateDialogFiltersOrder(std::move(filter_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_updateDialogFiltersOrder>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(INFO) << "Receive result for UpdateDialogFiltersOrderQuery: " << result_ptr.ok();
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleDialogFilterTagsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleDialogFilterTagsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool are_tags_enabled) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_toggleDialogFilterTags(are_tags_enabled)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_toggleDialogFilterTags>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(INFO) << "Receive result for ToggleDialogFilterTagsQuery: " << result_ptr.ok();
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ExportChatlistInviteQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatFolderInviteLink>> promise_;
-
- public:
-  explicit ExportChatlistInviteQuery(Promise<td_api::object_ptr<td_api::chatFolderInviteLink>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id, const string &title,
-            vector<tl_object_ptr<telegram_api::InputPeer>> &&input_peers) {
-    send_query(G()->net_query_creator().create(telegram_api::chatlists_exportChatlistInvite(
-        dialog_filter_id.get_input_chatlist(), title, std::move(input_peers))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_exportChatlistInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ExportChatlistInviteQuery: " << to_string(ptr);
-    td_->dialog_filter_manager_->on_get_dialog_filter(std::move(ptr->filter_));
-    promise_.set_value(DialogFilterInviteLink(td_, std::move(ptr->invite_)).get_chat_folder_invite_link_object(td_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetExportedChatlistInvitesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatFolderInviteLinks>> promise_;
-  DialogFilterId dialog_filter_id_;
-
- public:
-  explicit GetExportedChatlistInvitesQuery(Promise<td_api::object_ptr<td_api::chatFolderInviteLinks>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id) {
-    dialog_filter_id_ = dialog_filter_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::chatlists_getExportedInvites(dialog_filter_id.get_input_chatlist())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_getExportedInvites>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetExportedChatlistInvitesQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetExportedChatlistInvitesQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetExportedChatlistInvitesQuery");
-    auto result = td_api::make_object<td_api::chatFolderInviteLinks>();
-    for (auto &invite : ptr->invites_) {
-      result->invite_links_.push_back(
-          DialogFilterInviteLink(td_, std::move(invite)).get_chat_folder_invite_link_object(td_));
-    }
-    td_->dialog_filter_manager_->set_dialog_filter_has_my_invite_links(dialog_filter_id_,
-                                                                       !result->invite_links_.empty());
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditExportedChatlistInviteQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatFolderInviteLink>> promise_;
-
- public:
-  explicit EditExportedChatlistInviteQuery(Promise<td_api::object_ptr<td_api::chatFolderInviteLink>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id, const string &slug, const string &title,
-            vector<tl_object_ptr<telegram_api::InputPeer>> &&input_peers) {
-    int32 flags =
-        telegram_api::chatlists_editExportedInvite::TITLE_MASK | telegram_api::chatlists_editExportedInvite::PEERS_MASK;
-    send_query(G()->net_query_creator().create(telegram_api::chatlists_editExportedInvite(
-        flags, dialog_filter_id.get_input_chatlist(), slug, title, std::move(input_peers))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_editExportedInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditExportedChatlistInviteQuery: " << to_string(ptr);
-    promise_.set_value(DialogFilterInviteLink(td_, std::move(ptr)).get_chat_folder_invite_link_object(td_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteExportedChatlistInviteQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteExportedChatlistInviteQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id, const string &slug) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::chatlists_deleteExportedInvite(dialog_filter_id.get_input_chatlist(), slug)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_deleteExportedInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteExportedChatlistInviteQuery: " << ptr;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class LeaveChatlistQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit LeaveChatlistQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id) {
-    send_query(G()->net_query_creator().create(telegram_api::chatlists_leaveChatlist(
-        dialog_filter_id.get_input_chatlist(), vector<telegram_api::object_ptr<telegram_api::InputPeer>>())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_leaveChatlist>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for LeaveChatlistQuery: " << to_string(ptr);
-
-    // must be set before updates are processed to drop are_dialog_filters_being_synchronized_
-    promise_.set_value(Unit());
-
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetLeaveChatlistSuggestionsQuery final : public Td::ResultHandler {
-  Promise<vector<telegram_api::object_ptr<telegram_api::Peer>>> promise_;
-
- public:
-  explicit GetLeaveChatlistSuggestionsQuery(Promise<vector<telegram_api::object_ptr<telegram_api::Peer>>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::chatlists_getLeaveChatlistSuggestions(dialog_filter_id.get_input_chatlist())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_getLeaveChatlistSuggestions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetLeaveChatlistSuggestionsQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CheckChatlistInviteQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatFolderInviteLinkInfo>> promise_;
-  string invite_link_;
-
- public:
-  explicit CheckChatlistInviteQuery(Promise<td_api::object_ptr<td_api::chatFolderInviteLinkInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &invite_link) {
-    invite_link_ = invite_link;
-    send_query(G()->net_query_creator().create(
-        telegram_api::chatlists_checkChatlistInvite(LinkManager::get_dialog_filter_invite_link_slug(invite_link_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_checkChatlistInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->dialog_filter_manager_->on_get_chatlist_invite(invite_link_, result_ptr.move_as_ok(), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class JoinChatlistInviteQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit JoinChatlistInviteQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &invite_link, vector<DialogId> dialog_ids) {
-    send_query(G()->net_query_creator().create(telegram_api::chatlists_joinChatlistInvite(
-        LinkManager::get_dialog_filter_invite_link_slug(invite_link),
-        td_->dialog_manager_->get_input_peers(dialog_ids, AccessRights::Know))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_joinChatlistInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for JoinChatlistInviteQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChatlistUpdatesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chats>> promise_;
-
- public:
-  explicit GetChatlistUpdatesQuery(Promise<td_api::object_ptr<td_api::chats>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::chatlists_getChatlistUpdates(dialog_filter_id.get_input_chatlist())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_getChatlistUpdates>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChatlistUpdatesQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetChatlistUpdatesQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetChatlistUpdatesQuery");
-    auto missing_dialog_ids = td_->dialog_manager_->get_peers_dialog_ids(std::move(ptr->missing_peers_), true);
-    promise_.set_value(td_->dialog_manager_->get_chats_object(-1, missing_dialog_ids, "GetChatlistUpdatesQuery"));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class JoinChatlistUpdatesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit JoinChatlistUpdatesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id, vector<DialogId> dialog_ids) {
-    send_query(G()->net_query_creator().create(telegram_api::chatlists_joinChatlistUpdates(
-        dialog_filter_id.get_input_chatlist(), td_->dialog_manager_->get_input_peers(dialog_ids, AccessRights::Know))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_joinChatlistUpdates>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for JoinChatlistUpdatesQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class HideChatlistUpdatesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit HideChatlistUpdatesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogFilterId dialog_filter_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::chatlists_hideChatlistUpdates(dialog_filter_id.get_input_chatlist())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::chatlists_hideChatlistUpdates>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for HideChatlistUpdatesQuery: " << ptr;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetDialogsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  bool is_single_ = false;
-
- public:
-  explicit GetDialogsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<InputDialogId> input_dialog_ids) {
-    CHECK(!input_dialog_ids.empty());
-    CHECK(input_dialog_ids.size() <= 100);
-    is_single_ = input_dialog_ids.size() == 1;
-    auto input_dialog_peers = InputDialogId::get_input_dialog_peers(input_dialog_ids);
-    CHECK(input_dialog_peers.size() == input_dialog_ids.size());
-    send_query(G()->net_query_creator().create(telegram_api::messages_getPeerDialogs(std::move(input_dialog_peers))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPeerDialogs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetDialogsQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetDialogsQuery");
-    td_->chat_manager_->on_get_chats(std::move(result->chats_), "GetDialogsQuery");
-    td_->messages_manager_->on_get_dialogs(FolderId(), std::move(result->dialogs_), -1, std::move(result->messages_),
-                                           std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (is_single_ && status.code() == 400) {
-      return promise_.set_value(Unit());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSuggestedDialogFiltersQuery final : public Td::ResultHandler {
-  Promise<vector<telegram_api::object_ptr<telegram_api::dialogFilterSuggested>>> promise_;
-
- public:
-  explicit GetSuggestedDialogFiltersQuery(
-      Promise<vector<telegram_api::object_ptr<telegram_api::dialogFilterSuggested>>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getSuggestedDialogFilters()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSuggestedDialogFilters>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-DialogFilterManager::DialogFilterManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-DialogFilterManager::~DialogFilterManager() = default;
-
-void DialogFilterManager::hangup() {
-  fail_promises(dialog_filter_reload_queries_, Global::request_aborted_error());
-  stop();
-}
-
-void DialogFilterManager::tear_down() {
-  parent_.reset();
-}
-
-class DialogFilterManager::DialogFiltersLogEvent {
- public:
-  int32 server_main_dialog_list_position = 0;
-  int32 main_dialog_list_position = 0;
-  int32 updated_date = 0;
-  const vector<unique_ptr<DialogFilter>> *server_dialog_filters_in;
-  const vector<unique_ptr<DialogFilter>> *dialog_filters_in;
-  vector<unique_ptr<DialogFilter>> server_dialog_filters_out;
-  vector<unique_ptr<DialogFilter>> dialog_filters_out;
-  bool server_are_tags_enabled = false;
-  bool are_tags_enabled = false;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_server_dialog_filters = !server_dialog_filters_in->empty();
-    bool has_dialog_filters = !dialog_filters_in->empty();
-    bool has_server_main_dialog_list_position = server_main_dialog_list_position != 0;
-    bool has_main_dialog_list_position = main_dialog_list_position != 0;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_server_dialog_filters);
-    STORE_FLAG(has_dialog_filters);
-    STORE_FLAG(has_server_main_dialog_list_position);
-    STORE_FLAG(has_main_dialog_list_position);
-    STORE_FLAG(server_are_tags_enabled);
-    STORE_FLAG(are_tags_enabled);
-    END_STORE_FLAGS();
-    td::store(updated_date, storer);
-    if (has_server_dialog_filters) {
-      td::store(*server_dialog_filters_in, storer);
-    }
-    if (has_dialog_filters) {
-      td::store(*dialog_filters_in, storer);
-    }
-    if (has_server_main_dialog_list_position) {
-      td::store(server_main_dialog_list_position, storer);
-    }
-    if (has_main_dialog_list_position) {
-      td::store(main_dialog_list_position, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_server_dialog_filters = true;
-    bool has_dialog_filters = true;
-    bool has_server_main_dialog_list_position = false;
-    bool has_main_dialog_list_position = false;
-    if (parser.version() >= static_cast<int32>(Version::AddMainDialogListPosition)) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_server_dialog_filters);
-      PARSE_FLAG(has_dialog_filters);
-      PARSE_FLAG(has_server_main_dialog_list_position);
-      PARSE_FLAG(has_main_dialog_list_position);
-      PARSE_FLAG(server_are_tags_enabled);
-      PARSE_FLAG(are_tags_enabled);
-      END_PARSE_FLAGS();
-    }
-    td::parse(updated_date, parser);
-    if (has_server_dialog_filters) {
-      td::parse(server_dialog_filters_out, parser);
-    }
-    if (has_dialog_filters) {
-      td::parse(dialog_filters_out, parser);
-    }
-    if (has_server_main_dialog_list_position) {
-      td::parse(server_main_dialog_list_position, parser);
-    }
-    if (has_main_dialog_list_position) {
-      td::parse(main_dialog_list_position, parser);
-    }
-  }
-};
-
-void DialogFilterManager::init() {
-  if (is_inited_) {
-    return;
-  }
-  is_inited_ = true;
-
-  bool is_authorized = td_->auth_manager_->is_authorized();
-  bool was_authorized_user = td_->auth_manager_->was_authorized() && !td_->auth_manager_->is_bot();
-  if (is_authorized && td_->auth_manager_->is_bot()) {
-    disable_get_dialog_filter_ = true;
-  }
-
-  if (was_authorized_user) {
-    auto dialog_filters = G()->td_db()->get_binlog_pmc()->get("dialog_filters");
-    if (!dialog_filters.empty()) {
-      DialogFiltersLogEvent log_event;
-      if (log_event_parse(log_event, dialog_filters).is_ok()) {
-        server_are_tags_enabled_ = log_event.server_are_tags_enabled;
-        are_tags_enabled_ = log_event.are_tags_enabled;
-        server_main_dialog_list_position_ = log_event.server_main_dialog_list_position;
-        main_dialog_list_position_ = log_event.main_dialog_list_position;
-        if (!td_->option_manager_->get_option_boolean("is_premium")) {
-          if (server_main_dialog_list_position_ != 0 || main_dialog_list_position_ != 0) {
-            LOG(INFO) << "Ignore main chat list position " << server_main_dialog_list_position_ << '/'
-                      << main_dialog_list_position_;
-            server_main_dialog_list_position_ = 0;
-            main_dialog_list_position_ = 0;
-          }
-          if (server_are_tags_enabled_ || are_tags_enabled_) {
-            LOG(INFO) << "Ignore enabled tags " << server_are_tags_enabled_ << '/' << are_tags_enabled_;
-            server_are_tags_enabled_ = false;
-            are_tags_enabled_ = false;
-          }
-        }
-
-        dialog_filters_updated_date_ = td_->ignore_background_updates() ? 0 : log_event.updated_date;
-        std::unordered_set<DialogFilterId, DialogFilterIdHash> server_dialog_filter_ids;
-        for (auto &dialog_filter : log_event.server_dialog_filters_out) {
-          if (dialog_filter->get_dialog_filter_id().is_valid() &&
-              server_dialog_filter_ids.insert(dialog_filter->get_dialog_filter_id()).second) {
-            server_dialog_filters_.push_back(std::move(dialog_filter));
-          }
-        }
-        for (auto &dialog_filter : log_event.dialog_filters_out) {
-          add_dialog_filter(std::move(dialog_filter), false, "binlog");
-        }
-        LOG(INFO) << "Loaded server chat folders "
-                  << DialogFilter::get_dialog_filter_ids(server_dialog_filters_, server_main_dialog_list_position_)
-                  << " and local chat folders "
-                  << DialogFilter::get_dialog_filter_ids(dialog_filters_, main_dialog_list_position_);
-      } else {
-        LOG(ERROR) << "Failed to parse chat folders from binlog";
-      }
-    }
-    send_update_chat_folders();  // always send updateChatFolders
-
-    if (is_authorized) {
-      if (need_synchronize_dialog_filters()) {
-        reload_dialog_filters();
-      } else {
-        auto cache_time = get_dialog_filters_cache_time();
-        schedule_dialog_filters_reload(cache_time - max(0, G()->unix_time() - dialog_filters_updated_date_));
-      }
-    }
-  }
-}
-
-void DialogFilterManager::on_authorization_success() {
-  CHECK(td_->auth_manager_->is_authorized());
-  if (td_->auth_manager_->is_bot()) {
-    disable_get_dialog_filter_ = true;
-    return;
-  }
-
-  reload_dialog_filters();
-}
-
-void DialogFilterManager::on_update_dialog_filters(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return promise.set_value(Unit());
-  }
-
-  schedule_reload_dialog_filters(std::move(promise));
-}
-
-void DialogFilterManager::schedule_reload_dialog_filters(Promise<Unit> &&promise) {
-  schedule_dialog_filters_reload(0.0);
-  dialog_filter_reload_queries_.push_back(std::move(promise));
-}
-
-bool DialogFilterManager::have_dialog_filters() const {
-  return !dialog_filters_.empty();
-}
-
-vector<FolderId> DialogFilterManager::get_dialog_filter_folder_ids(DialogFilterId dialog_filter_id) const {
-  const auto *dialog_filter = get_dialog_filter(dialog_filter_id);
-  CHECK(dialog_filter != nullptr);
-  return dialog_filter->get_folder_ids();
-}
-
-vector<DialogFilterId> DialogFilterManager::get_dialog_filters_to_add_dialog(DialogId dialog_id) const {
-  vector<DialogFilterId> result;
-  for (const auto &dialog_filter : dialog_filters_) {
-    if (dialog_filter->can_include_dialog(dialog_id)) {
-      result.push_back(dialog_filter->get_dialog_filter_id());
-    }
-  }
-  return result;
-}
-
-bool DialogFilterManager::need_dialog_in_filter(DialogFilterId dialog_filter_id,
-                                                const DialogFilterDialogInfo &dialog_info) const {
-  const auto *dialog_filter = get_dialog_filter(dialog_filter_id);
-  CHECK(dialog_filter != nullptr);
-  return dialog_filter->need_dialog(td_, dialog_info);
-}
-
-bool DialogFilterManager::is_dialog_pinned(DialogFilterId dialog_filter_id, DialogId dialog_id) const {
-  const auto *dialog_filter = get_dialog_filter(dialog_filter_id);
-  return dialog_filter != nullptr && dialog_filter->is_dialog_pinned(dialog_id);
-}
-
-const vector<InputDialogId> &DialogFilterManager::get_pinned_input_dialog_ids(DialogFilterId dialog_filter_id) const {
-  auto *dialog_filter = get_dialog_filter(dialog_filter_id);
-  CHECK(dialog_filter != nullptr);
-  return dialog_filter->get_pinned_input_dialog_ids();
-}
-
-vector<DialogId> DialogFilterManager::get_pinned_dialog_ids(DialogFilterId dialog_filter_id) const {
-  auto *dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return {};
-  }
-  return InputDialogId::get_dialog_ids(dialog_filter->get_pinned_input_dialog_ids());
-}
-
-Status DialogFilterManager::set_dialog_is_pinned(DialogFilterId dialog_filter_id, InputDialogId input_dialog_id,
-                                                 bool is_pinned) {
-  CHECK(is_update_chat_folders_sent_);
-  auto old_dialog_filter = get_dialog_filter(dialog_filter_id);
-  CHECK(old_dialog_filter != nullptr);
-  auto new_dialog_filter = make_unique<DialogFilter>(*old_dialog_filter);
-  new_dialog_filter->set_dialog_is_pinned(input_dialog_id, is_pinned);
-
-  TRY_STATUS(new_dialog_filter->check_limits());
-  new_dialog_filter->sort_input_dialog_ids(td_, "set_dialog_is_pinned");
-
-  do_edit_dialog_filter(std::move(new_dialog_filter),
-                        input_dialog_id.get_dialog_id().get_type() != DialogType::SecretChat, "set_dialog_is_pinned");
-  return Status::OK();
-}
-
-Status DialogFilterManager::set_pinned_dialog_ids(DialogFilterId dialog_filter_id,
-                                                  vector<InputDialogId> input_dialog_ids, bool need_synchronize) {
-  CHECK(is_update_chat_folders_sent_);
-  auto old_dialog_filter = get_dialog_filter(dialog_filter_id);
-  CHECK(old_dialog_filter != nullptr);
-  auto new_dialog_filter = make_unique<DialogFilter>(*old_dialog_filter);
-  new_dialog_filter->set_pinned_dialog_ids(std::move(input_dialog_ids));
-  TRY_STATUS(new_dialog_filter->check_limits());
-  new_dialog_filter->sort_input_dialog_ids(td_, "set_pinned_dialog_ids");
-
-  do_edit_dialog_filter(std::move(new_dialog_filter), need_synchronize, "set_pinned_dialog_ids");
-  return Status::OK();
-}
-
-Status DialogFilterManager::add_dialog(DialogFilterId dialog_filter_id, InputDialogId input_dialog_id) {
-  CHECK(is_update_chat_folders_sent_);
-  auto old_dialog_filter = get_dialog_filter(dialog_filter_id);
-  CHECK(old_dialog_filter != nullptr);
-  if (old_dialog_filter->is_dialog_included(input_dialog_id.get_dialog_id())) {
-    return Status::OK();
-  }
-
-  auto new_dialog_filter = make_unique<DialogFilter>(*old_dialog_filter);
-  new_dialog_filter->include_dialog(input_dialog_id);
-  TRY_STATUS(new_dialog_filter->check_limits());
-  new_dialog_filter->sort_input_dialog_ids(td_, "add_dialog");
-
-  do_edit_dialog_filter(std::move(new_dialog_filter),
-                        input_dialog_id.get_dialog_id().get_type() != DialogType::SecretChat, "add_dialog");
-  return Status::OK();
-}
-
-bool DialogFilterManager::is_recommended_dialog_filter(const DialogFilter *dialog_filter) {
-  for (const auto &recommended_dialog_filter : recommended_dialog_filters_) {
-    if (DialogFilter::are_similar(*recommended_dialog_filter.dialog_filter, *dialog_filter)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-td_api::object_ptr<td_api::chatFolder> DialogFilterManager::get_chat_folder_object(DialogFilterId dialog_filter_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return nullptr;
-  }
-
-  return get_chat_folder_object(dialog_filter);
-}
-
-td_api::object_ptr<td_api::chatFolder> DialogFilterManager::get_chat_folder_object(const DialogFilter *dialog_filter) {
-  DialogFilterId dialog_filter_id = dialog_filter->get_dialog_filter_id();
-
-  vector<DialogId> left_dialog_ids;
-  vector<DialogId> unknown_dialog_ids;
-  dialog_filter->for_each_dialog([&](const InputDialogId &input_dialog_id) {
-    auto dialog_id = input_dialog_id.get_dialog_id();
-    if (td_->messages_manager_->is_dialog_in_dialog_list(dialog_id)) {
-      return;
-    }
-    if (td_->messages_manager_->have_dialog(dialog_id)) {
-      LOG(INFO) << "Skip nonjoined " << dialog_id << " from " << dialog_filter_id;
-      unknown_dialog_ids.push_back(dialog_id);
-      left_dialog_ids.push_back(dialog_id);
-    } else {
-      // possible if the chat folder has just been edited from another device
-      LOG(ERROR) << "Can't find " << dialog_id << " from " << dialog_filter_id;
-      unknown_dialog_ids.push_back(dialog_id);
-    }
-  });
-
-  auto result = dialog_filter->get_chat_folder_object(unknown_dialog_ids);
-
-  if (dialog_filter_id.is_valid()) {
-    delete_dialogs_from_filter(dialog_filter, std::move(left_dialog_ids), "get_chat_folder_object");
-  }
-  return result;
-}
-
-void DialogFilterManager::get_recommended_dialog_filters(
-    Promise<td_api::object_ptr<td_api::recommendedChatFolders>> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), promise = std::move(promise)](
-          Result<vector<telegram_api::object_ptr<telegram_api::dialogFilterSuggested>>> result) mutable {
-        send_closure(actor_id, &DialogFilterManager::on_get_recommended_dialog_filters, std::move(result),
-                     std::move(promise));
-      });
-  td_->create_handler<GetSuggestedDialogFiltersQuery>(std::move(query_promise))->send();
-}
-
-void DialogFilterManager::on_get_recommended_dialog_filters(
-    Result<vector<telegram_api::object_ptr<telegram_api::dialogFilterSuggested>>> result,
-    Promise<td_api::object_ptr<td_api::recommendedChatFolders>> &&promise) {
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  auto suggested_filters = result.move_as_ok();
-
-  MultiPromiseActorSafe mpas{"LoadRecommendedFiltersMultiPromiseActor"};
-  mpas.add_promise(Promise<Unit>());
-  auto lock = mpas.get_promise();
-
-  vector<RecommendedDialogFilter> filters;
-  for (auto &suggested_filter : suggested_filters) {
-    RecommendedDialogFilter recommended_dialog_filter;
-    recommended_dialog_filter.dialog_filter =
-        DialogFilter::get_dialog_filter(std::move(suggested_filter->filter_), false);
-    if (recommended_dialog_filter.dialog_filter == nullptr) {
-      continue;
-    }
-    load_dialog_filter(recommended_dialog_filter.dialog_filter.get(), mpas.get_promise());
-
-    recommended_dialog_filter.description = std::move(suggested_filter->description_);
-    filters.push_back(std::move(recommended_dialog_filter));
-  }
-
-  mpas.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), filters = std::move(filters),
-                                           promise = std::move(promise)](Result<Unit> &&result) mutable {
-    send_closure(actor_id, &DialogFilterManager::on_load_recommended_dialog_filters, std::move(result),
-                 std::move(filters), std::move(promise));
-  }));
-  lock.set_value(Unit());
-}
-
-void DialogFilterManager::on_load_recommended_dialog_filters(
-    Result<Unit> &&result, vector<RecommendedDialogFilter> &&filters,
-    Promise<td_api::object_ptr<td_api::recommendedChatFolders>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-
-  auto chat_folders = transform(filters, [this](const RecommendedDialogFilter &recommended_dialog_filter) {
-    return td_api::make_object<td_api::recommendedChatFolder>(
-        get_chat_folder_object(recommended_dialog_filter.dialog_filter.get()), recommended_dialog_filter.description);
-  });
-  recommended_dialog_filters_ = std::move(filters);
-  promise.set_value(td_api::make_object<td_api::recommendedChatFolders>(std::move(chat_folders)));
-}
-
-void DialogFilterManager::get_dialog_filter(DialogFilterId dialog_filter_id,
-                                            Promise<td_api::object_ptr<td_api::chatFolder>> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!dialog_filter_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid chat folder identifier specified"));
-  }
-
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_value(nullptr);
-  }
-
-  auto load_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_filter_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &DialogFilterManager::on_load_dialog_filter, dialog_filter_id, std::move(promise));
-      });
-  load_dialog_filter(dialog_filter, std::move(load_promise));
-}
-
-void DialogFilterManager::on_load_dialog_filter(DialogFilterId dialog_filter_id,
-                                                Promise<td_api::object_ptr<td_api::chatFolder>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  promise.set_value(get_chat_folder_object(dialog_filter_id));
-}
-
-void DialogFilterManager::load_dialog_filter(const DialogFilter *dialog_filter, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  vector<InputDialogId> needed_dialog_ids;
-  dialog_filter->for_each_dialog([&](const InputDialogId &input_dialog_id) {
-    if (!td_->messages_manager_->have_dialog(input_dialog_id.get_dialog_id())) {
-      needed_dialog_ids.push_back(input_dialog_id);
-    }
-  });
-
-  vector<InputDialogId> input_dialog_ids;
-  for (const auto &input_dialog_id : needed_dialog_ids) {
-    auto dialog_id = input_dialog_id.get_dialog_id();
-    // TODO load dialogs asynchronously
-    if (!td_->dialog_manager_->have_dialog_force(dialog_id, "load_dialog_filter")) {
-      if (dialog_id.get_type() == DialogType::SecretChat) {
-        if (td_->dialog_manager_->have_dialog_info_force(dialog_id, "load_dialog_filter")) {
-          td_->dialog_manager_->force_create_dialog(dialog_id, "load_dialog_filter");
-        }
-      } else {
-        input_dialog_ids.push_back(input_dialog_id);
-      }
-    }
-  }
-
-  if (!input_dialog_ids.empty()) {
-    return load_dialog_filter_dialogs(dialog_filter->get_dialog_filter_id(), std::move(input_dialog_ids),
-                                      std::move(promise));
-  }
-
-  promise.set_value(Unit());
-}
-
-void DialogFilterManager::load_dialog_filter_dialogs(DialogFilterId dialog_filter_id,
-                                                     vector<InputDialogId> &&input_dialog_ids,
-                                                     Promise<Unit> &&promise) {
-  const size_t MAX_SLICE_SIZE = 100;  // server-side limit
-  MultiPromiseActorSafe mpas{"GetFilterDialogsOnServerMultiPromiseActor"};
-  mpas.add_promise(std::move(promise));
-  auto lock = mpas.get_promise();
-
-  for (auto &slice_input_dialog_ids : vector_split(std::move(input_dialog_ids), MAX_SLICE_SIZE)) {
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_filter_id,
-                                                 dialog_ids = InputDialogId::get_dialog_ids(slice_input_dialog_ids),
-                                                 promise = mpas.get_promise()](Result<Unit> &&result) mutable {
-      if (result.is_error()) {
-        return promise.set_error(result.move_as_error());
-      }
-      send_closure(actor_id, &DialogFilterManager::on_load_dialog_filter_dialogs, dialog_filter_id,
-                   std::move(dialog_ids), std::move(promise));
-    });
-    td_->create_handler<GetDialogsQuery>(std::move(query_promise))->send(std::move(slice_input_dialog_ids));
-  }
-
-  lock.set_value(Unit());
-}
-
-void DialogFilterManager::on_load_dialog_filter_dialogs(DialogFilterId dialog_filter_id, vector<DialogId> &&dialog_ids,
-                                                        Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  td::remove_if(dialog_ids, [dialog_manager = td_->dialog_manager_.get()](DialogId dialog_id) {
-    return dialog_manager->have_dialog_force(dialog_id, "on_load_dialog_filter_dialogs");
-  });
-  if (dialog_ids.empty()) {
-    LOG(INFO) << "All chats from " << dialog_filter_id << " were loaded";
-    return promise.set_value(Unit());
-  }
-
-  LOG(INFO) << "Failed to load chats " << dialog_ids << " from " << dialog_filter_id;
-
-  auto old_dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (old_dialog_filter == nullptr) {
-    return promise.set_value(Unit());
-  }
-  CHECK(is_update_chat_folders_sent_);
-
-  delete_dialogs_from_filter(old_dialog_filter, std::move(dialog_ids), "on_load_dialog_filter_dialogs");
-
-  promise.set_value(Unit());
-}
-
-void DialogFilterManager::load_input_dialog(const InputDialogId &input_dialog_id, Promise<Unit> &&promise) {
-  td_->create_handler<GetDialogsQuery>(std::move(promise))->send({input_dialog_id});
-}
-
-void DialogFilterManager::delete_dialogs_from_filter(const DialogFilter *dialog_filter, vector<DialogId> &&dialog_ids,
-                                                     const char *source) {
-  if (dialog_ids.empty()) {
-    return;
-  }
-
-  bool was_valid = dialog_filter->check_limits().is_ok();
-  auto new_dialog_filter = td::make_unique<DialogFilter>(*dialog_filter);
-  for (auto dialog_id : dialog_ids) {
-    new_dialog_filter->remove_dialog_id(dialog_id);
-  }
-  if (new_dialog_filter->is_empty(false)) {
-    delete_dialog_filter(dialog_filter->get_dialog_filter_id(), vector<DialogId>(), Promise<Unit>());
-    return;
-  }
-  CHECK(!was_valid || new_dialog_filter->check_limits().is_ok());
-
-  if (*new_dialog_filter != *dialog_filter) {
-    LOG(INFO) << "Update " << *dialog_filter << " to " << *new_dialog_filter;
-    do_edit_dialog_filter(std::move(new_dialog_filter), true, "delete_dialogs_from_filter");
-  }
-}
-
-const DialogFilter *DialogFilterManager::get_server_dialog_filter(DialogFilterId dialog_filter_id) const {
-  CHECK(!disable_get_dialog_filter_);
-  for (const auto &dialog_filter : server_dialog_filters_) {
-    if (dialog_filter->get_dialog_filter_id() == dialog_filter_id) {
-      return dialog_filter.get();
-    }
-  }
-  return nullptr;
-}
-
-DialogFilter *DialogFilterManager::get_dialog_filter(DialogFilterId dialog_filter_id) {
-  CHECK(!disable_get_dialog_filter_);
-  for (auto &dialog_filter : dialog_filters_) {
-    if (dialog_filter->get_dialog_filter_id() == dialog_filter_id) {
-      return dialog_filter.get();
-    }
-  }
-  return nullptr;
-}
-
-const DialogFilter *DialogFilterManager::get_dialog_filter(DialogFilterId dialog_filter_id) const {
-  CHECK(!disable_get_dialog_filter_);
-  for (const auto &dialog_filter : dialog_filters_) {
-    if (dialog_filter->get_dialog_filter_id() == dialog_filter_id) {
-      return dialog_filter.get();
-    }
-  }
-  return nullptr;
-}
-
-int32 DialogFilterManager::get_server_main_dialog_list_position() const {
-  int32 current_position = 0;
-  int32 current_server_position = 0;
-  if (current_position == main_dialog_list_position_) {
-    return current_server_position;
-  }
-  for (const auto &dialog_filter : dialog_filters_) {
-    current_position++;
-    if (!dialog_filter->is_empty(true)) {
-      current_server_position++;
-    }
-    if (current_position == main_dialog_list_position_) {
-      return current_server_position;
-    }
-  }
-  LOG(WARNING) << "Failed to find server position for " << main_dialog_list_position_ << " in chat folders";
-  return current_server_position;
-}
-
-double DialogFilterManager::get_dialog_filters_cache_time() {
-  return DIALOG_FILTERS_CACHE_TIME * 0.0001 * Random::fast(9000, 11000);
-}
-
-void DialogFilterManager::schedule_dialog_filters_reload(double timeout) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-  if (timeout <= 0) {
-    timeout = 0.0;
-    if (dialog_filters_updated_date_ != 0) {
-      dialog_filters_updated_date_ = 0;
-      save_dialog_filters();
-    }
-  }
-  LOG(INFO) << "Schedule reload of chat folders in " << timeout;
-  reload_dialog_filters_timeout_.set_callback(std::move(DialogFilterManager::on_reload_dialog_filters_timeout));
-  reload_dialog_filters_timeout_.set_callback_data(static_cast<void *>(this));
-  reload_dialog_filters_timeout_.set_timeout_in(timeout);
-}
-
-void DialogFilterManager::on_reload_dialog_filters_timeout(void *dialog_filter_manager_ptr) {
-  if (G()->close_flag()) {
-    return;
-  }
-  auto dialog_filter_manager = static_cast<DialogFilterManager *>(dialog_filter_manager_ptr);
-  send_closure_later(dialog_filter_manager->actor_id(dialog_filter_manager),
-                     &DialogFilterManager::reload_dialog_filters);
-}
-
-void DialogFilterManager::reload_dialog_filters() {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  if (are_dialog_filters_being_synchronized_ || are_dialog_filters_being_reloaded_) {
-    need_dialog_filters_reload_ = true;
-    return;
-  }
-  LOG(INFO) << "Reload chat folders from server";
-  are_dialog_filters_being_reloaded_ = true;
-  need_dialog_filters_reload_ = false;
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::messages_dialogFilters>> r_filters) {
-        send_closure(actor_id, &DialogFilterManager::on_get_dialog_filters, std::move(r_filters), false);
-      });
-  td_->create_handler<GetDialogFiltersQuery>(std::move(promise))->send();
-}
-
-void DialogFilterManager::on_get_dialog_filter(telegram_api::object_ptr<telegram_api::DialogFilter> filter) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto new_server_filter = DialogFilter::get_dialog_filter(std::move(filter), true);
-  if (new_server_filter == nullptr) {
-    return;
-  }
-  new_server_filter->sort_input_dialog_ids(td_, "on_get_dialog_filter 1");
-
-  auto dialog_filter_id = new_server_filter->get_dialog_filter_id();
-  auto old_filter = get_dialog_filter(dialog_filter_id);
-  if (old_filter == nullptr) {
-    return;
-  }
-  bool is_server_changed = false;
-  bool is_changed = false;
-  for (auto &old_server_filter : server_dialog_filters_) {
-    if (old_server_filter->get_dialog_filter_id() == dialog_filter_id && *new_server_filter != *old_server_filter) {
-      if (!DialogFilter::are_equivalent(*old_filter, *new_server_filter)) {
-        auto new_filter =
-            DialogFilter::merge_dialog_filter_changes(old_filter, old_server_filter.get(), new_server_filter.get());
-        new_filter->sort_input_dialog_ids(td_, "on_get_dialog_filter");
-        if (*new_filter != *old_filter) {
-          is_changed = true;
-          edit_dialog_filter(std::move(new_filter), "on_get_dialog_filter");
-        }
-      }
-      is_server_changed = true;
-      old_server_filter = std::move(new_server_filter);
-      break;
-    }
-  }
-  if (!is_server_changed) {
-    return;
-  }
-
-  if (is_changed || !is_update_chat_folders_sent_) {
-    send_update_chat_folders();
-  }
-  schedule_dialog_filters_reload(get_dialog_filters_cache_time());
-  save_dialog_filters();
-
-  if (need_synchronize_dialog_filters()) {
-    synchronize_dialog_filters();
-  }
-}
-
-void DialogFilterManager::on_get_dialog_filters(
-    Result<telegram_api::object_ptr<telegram_api::messages_dialogFilters>> r_filters, bool dummy) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  are_dialog_filters_being_reloaded_ = false;
-  CHECK(!td_->auth_manager_->is_bot());
-  auto promises = std::move(dialog_filter_reload_queries_);
-  dialog_filter_reload_queries_.clear();
-  if (r_filters.is_error()) {
-    if (!G()->is_expected_error(r_filters.error())) {
-      LOG(WARNING) << "Receive error " << r_filters.error() << " for GetDialogFiltersQuery";
-    }
-    set_promises(promises);  // ignore error
-    need_dialog_filters_reload_ = false;
-    schedule_dialog_filters_reload(Random::fast(60, 5 * 60));
-    return;
-  }
-
-  auto dialog_filters = r_filters.move_as_ok();
-  auto filters = std::move(dialog_filters->filters_);
-  vector<unique_ptr<DialogFilter>> new_server_dialog_filters;
-  LOG(INFO) << "Receive chat folders from server: " << to_string(filters);
-  std::unordered_set<DialogFilterId, DialogFilterIdHash> new_dialog_filter_ids;
-  bool server_are_tags_enabled = dialog_filters->tags_enabled_;
-  int32 server_main_dialog_list_position = -1;
-  int32 position = 0;
-  for (auto &filter : filters) {
-    if (filter->get_id() == telegram_api::dialogFilterDefault::ID) {
-      if (server_main_dialog_list_position == -1) {
-        server_main_dialog_list_position = position;
-      } else {
-        LOG(ERROR) << "Receive duplicate dialogFilterDefault";
-      }
-      continue;
-    }
-    auto dialog_filter = DialogFilter::get_dialog_filter(std::move(filter), true);
-    if (dialog_filter == nullptr) {
-      continue;
-    }
-    if (!new_dialog_filter_ids.insert(dialog_filter->get_dialog_filter_id()).second) {
-      LOG(ERROR) << "Receive duplicate " << dialog_filter->get_dialog_filter_id();
-      continue;
-    }
-
-    dialog_filter->sort_input_dialog_ids(td_, "on_get_dialog_filters 1");
-    new_server_dialog_filters.push_back(std::move(dialog_filter));
-    position++;
-  }
-  if (server_main_dialog_list_position == -1) {
-    LOG(ERROR) << "Receive no dialogFilterDefault";
-    server_main_dialog_list_position = 0;
-  }
-  if (server_main_dialog_list_position != 0 && !td_->option_manager_->get_option_boolean("is_premium")) {
-    LOG(INFO) << "Ignore server main chat list position " << server_main_dialog_list_position;
-    server_main_dialog_list_position = 0;
-  }
-  if (server_are_tags_enabled && !td_->option_manager_->get_option_boolean("is_premium")) {
-    LOG(INFO) << "Ignore server enabled tags";
-    server_are_tags_enabled = false;
-  }
-
-  bool is_changed = false;
-  dialog_filters_updated_date_ = G()->unix_time();
-  if (server_dialog_filters_ != new_server_dialog_filters) {
-    LOG(INFO) << "Change server chat folders from "
-              << DialogFilter::get_dialog_filter_ids(server_dialog_filters_, server_main_dialog_list_position_)
-              << " to "
-              << DialogFilter::get_dialog_filter_ids(new_server_dialog_filters, server_main_dialog_list_position);
-    FlatHashMap<DialogFilterId, const DialogFilter *, DialogFilterIdHash> old_server_dialog_filters;
-    for (const auto &dialog_filter : server_dialog_filters_) {
-      old_server_dialog_filters.emplace(dialog_filter->get_dialog_filter_id(), dialog_filter.get());
-    }
-    for (const auto &new_server_filter : new_server_dialog_filters) {
-      auto dialog_filter_id = new_server_filter->get_dialog_filter_id();
-      auto old_filter = get_dialog_filter(dialog_filter_id);
-      auto it = old_server_dialog_filters.find(dialog_filter_id);
-      if (it != old_server_dialog_filters.end()) {
-        auto old_server_filter = it->second;
-        if (*new_server_filter != *old_server_filter) {
-          if (old_filter == nullptr) {
-            // the filter was deleted, don't need to edit it
-          } else {
-            if (DialogFilter::are_equivalent(*old_filter, *new_server_filter)) {  // fast path
-              // the filter was edited from this client, nothing to do
-            } else {
-              auto new_filter =
-                  DialogFilter::merge_dialog_filter_changes(old_filter, old_server_filter, new_server_filter.get());
-              new_filter->sort_input_dialog_ids(td_, "on_get_dialog_filters");
-              if (*new_filter != *old_filter) {
-                is_changed = true;
-                edit_dialog_filter(std::move(new_filter), "on_get_dialog_filters");
-              }
-            }
-          }
-        }
-        old_server_dialog_filters.erase(it);
-      } else {
-        if (old_filter == nullptr) {
-          // the filter was added from another client
-          is_changed = true;
-          add_dialog_filter(make_unique<DialogFilter>(*new_server_filter), false, "on_get_dialog_filters");
-        } else {
-          // the filter was added from this client
-          // after that it could be added from another client, or edited from this client, or edited from another client
-          // prefer local value, so do nothing
-          // effectively, ignore edits from other clients, if didn't receive UpdateDialogFilterQuery response
-        }
-      }
-    }
-    vector<DialogFilterId> left_old_server_dialog_filter_ids;
-    for (const auto &dialog_filter : server_dialog_filters_) {
-      if (old_server_dialog_filters.count(dialog_filter->get_dialog_filter_id()) == 0) {
-        left_old_server_dialog_filter_ids.push_back(dialog_filter->get_dialog_filter_id());
-      }
-    }
-    LOG(INFO) << "Still existing server chat folders: " << left_old_server_dialog_filter_ids;
-    for (auto &old_server_filter : old_server_dialog_filters) {
-      auto dialog_filter_id = old_server_filter.first;
-      // deleted filter
-      auto old_filter = get_dialog_filter(dialog_filter_id);
-      if (old_filter == nullptr) {
-        // the filter was deleted from this client, nothing to do
-      } else {
-        // the filter was deleted from another client
-        // ignore edits done from the current client and just delete the filter
-        is_changed = true;
-        do_delete_dialog_filter(dialog_filter_id, "on_get_dialog_filters");
-      }
-    }
-    bool is_order_changed = [&] {
-      vector<DialogFilterId> new_server_dialog_filter_ids =
-          DialogFilter::get_dialog_filter_ids(new_server_dialog_filters, -1);
-      CHECK(new_server_dialog_filter_ids.size() >= left_old_server_dialog_filter_ids.size());
-      new_server_dialog_filter_ids.resize(left_old_server_dialog_filter_ids.size());
-      return new_server_dialog_filter_ids != left_old_server_dialog_filter_ids;
-    }();
-    if (is_order_changed) {  // if order is changed from this and other clients, prefer order from another client
-      vector<DialogFilterId> new_dialog_filter_order;
-      for (const auto &new_server_filter : new_server_dialog_filters) {
-        auto dialog_filter_id = new_server_filter->get_dialog_filter_id();
-        if (get_dialog_filter(dialog_filter_id) != nullptr) {
-          new_dialog_filter_order.push_back(dialog_filter_id);
-        }
-      }
-      is_changed = true;
-      DialogFilter::set_dialog_filters_order(dialog_filters_, new_dialog_filter_order);
-    }
-
-    server_dialog_filters_ = std::move(new_server_dialog_filters);
-  }
-  if (server_main_dialog_list_position_ != server_main_dialog_list_position) {
-    server_main_dialog_list_position_ = server_main_dialog_list_position;
-
-    int32 main_dialog_list_position = -1;
-    if (server_main_dialog_list_position == 0) {
-      main_dialog_list_position = 0;
-    } else {
-      int32 current_position = 0;
-      int32 current_server_position = 0;
-      for (const auto &dialog_filter : dialog_filters_) {
-        current_position++;
-        if (!dialog_filter->is_empty(true)) {
-          current_server_position++;
-        }
-        if (current_server_position == server_main_dialog_list_position) {
-          main_dialog_list_position = current_position;
-        }
-      }
-      if (main_dialog_list_position == -1) {
-        LOG(INFO) << "Failed to find server position " << server_main_dialog_list_position << " in chat folders";
-        main_dialog_list_position = static_cast<int32>(dialog_filters_.size());
-      }
-    }
-
-    if (main_dialog_list_position != main_dialog_list_position_) {
-      LOG(INFO) << "Change main chat list position from " << main_dialog_list_position_ << " to "
-                << main_dialog_list_position;
-      main_dialog_list_position_ = main_dialog_list_position;
-      is_changed = true;
-    }
-  }
-  if (server_are_tags_enabled_ != server_are_tags_enabled) {
-    server_are_tags_enabled_ = server_are_tags_enabled;
-
-    if (server_are_tags_enabled != are_tags_enabled_) {
-      LOG(INFO) << "Change are_tags_enabled_ from " << are_tags_enabled_ << " to " << server_are_tags_enabled;
-      are_tags_enabled_ = server_are_tags_enabled;
-      is_changed = true;
-    }
-  }
-  if (is_changed || !is_update_chat_folders_sent_) {
-    send_update_chat_folders();
-  }
-  schedule_dialog_filters_reload(get_dialog_filters_cache_time());
-  save_dialog_filters();
-
-  if (need_synchronize_dialog_filters()) {
-    synchronize_dialog_filters();
-  }
-  set_promises(promises);
-}
-
-bool DialogFilterManager::need_synchronize_dialog_filters() const {
-  CHECK(!td_->auth_manager_->is_bot());
-  size_t server_dialog_filter_count = 0;
-  vector<DialogFilterId> dialog_filter_ids;
-  for (const auto &dialog_filter : dialog_filters_) {
-    if (dialog_filter->is_empty(true)) {
-      continue;
-    }
-
-    server_dialog_filter_count++;
-    auto server_dialog_filter = get_server_dialog_filter(dialog_filter->get_dialog_filter_id());
-    if (server_dialog_filter == nullptr || !DialogFilter::are_equivalent(*server_dialog_filter, *dialog_filter)) {
-      // need update dialog filter on server
-      return true;
-    }
-    dialog_filter_ids.push_back(dialog_filter->get_dialog_filter_id());
-  }
-  if (server_dialog_filter_count != server_dialog_filters_.size()) {
-    // need delete dialog filter on server
-    return true;
-  }
-  if (dialog_filter_ids != DialogFilter::get_dialog_filter_ids(server_dialog_filters_, -1)) {
-    // need reorder dialog filters on server
-    return true;
-  }
-  if (get_server_main_dialog_list_position() != server_main_dialog_list_position_) {
-    // need reorder main chat list on server
-    return true;
-  }
-  if (are_tags_enabled_ != server_are_tags_enabled_) {
-    // need enable/disable tags
-    return true;
-  }
-  return false;
-}
-
-void DialogFilterManager::synchronize_dialog_filters() {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  if (are_dialog_filters_being_synchronized_ || are_dialog_filters_being_reloaded_) {
-    return;
-  }
-  if (need_dialog_filters_reload_) {
-    return reload_dialog_filters();
-  }
-  if (!need_synchronize_dialog_filters()) {
-    // reload filters to repair their order if the server added new filter to the beginning of the list
-    return reload_dialog_filters();
-  }
-
-  LOG(INFO) << "Synchronize chat folder changes with server having local "
-            << DialogFilter::get_dialog_filter_ids(dialog_filters_, main_dialog_list_position_) << " and server "
-            << DialogFilter::get_dialog_filter_ids(server_dialog_filters_, server_main_dialog_list_position_);
-  for (const auto &server_dialog_filter : server_dialog_filters_) {
-    if (get_dialog_filter(server_dialog_filter->get_dialog_filter_id()) == nullptr) {
-      return delete_dialog_filter_on_server(server_dialog_filter->get_dialog_filter_id(),
-                                            server_dialog_filter->is_shareable());
-    }
-  }
-
-  vector<DialogFilterId> dialog_filter_ids;
-  for (const auto &dialog_filter : dialog_filters_) {
-    if (dialog_filter->is_empty(true)) {
-      continue;
-    }
-
-    auto server_dialog_filter = get_server_dialog_filter(dialog_filter->get_dialog_filter_id());
-    if (server_dialog_filter == nullptr || !DialogFilter::are_equivalent(*server_dialog_filter, *dialog_filter)) {
-      return update_dialog_filter_on_server(make_unique<DialogFilter>(*dialog_filter));
-    }
-    dialog_filter_ids.push_back(dialog_filter->get_dialog_filter_id());
-  }
-
-  auto server_main_dialog_list_position = get_server_main_dialog_list_position();
-  if (dialog_filter_ids != DialogFilter::get_dialog_filter_ids(server_dialog_filters_, -1) ||
-      server_main_dialog_list_position != server_main_dialog_list_position_) {
-    return reorder_dialog_filters_on_server(std::move(dialog_filter_ids), server_main_dialog_list_position);
-  }
-
-  if (are_tags_enabled_ != server_are_tags_enabled_) {
-    return toggle_are_tags_enabled_on_server(are_tags_enabled_);
-  }
-
-  UNREACHABLE();
-}
-
-void DialogFilterManager::send_update_chat_folders() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  is_update_chat_folders_sent_ = true;
-  send_closure(G()->td(), &Td::send_update, get_update_chat_folders_object());
-}
-
-td_api::object_ptr<td_api::updateChatFolders> DialogFilterManager::get_update_chat_folders_object() const {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto update = td_api::make_object<td_api::updateChatFolders>();
-  for (const auto &dialog_filter : dialog_filters_) {
-    update->chat_folders_.push_back(dialog_filter->get_chat_folder_info_object());
-  }
-  update->main_chat_list_position_ = main_dialog_list_position_;
-  update->are_tags_enabled_ = are_tags_enabled_;
-  return update;
-}
-
-void DialogFilterManager::create_dialog_filter(td_api::object_ptr<td_api::chatFolder> filter,
-                                               Promise<td_api::object_ptr<td_api::chatFolderInfo>> &&promise) {
-  auto max_dialog_filters = clamp(td_->option_manager_->get_option_integer("chat_folder_count_max"),
-                                  static_cast<int64>(0), static_cast<int64>(100));
-  if (dialog_filters_.size() >= narrow_cast<size_t>(max_dialog_filters)) {
-    return promise.set_error(Status::Error(400, "The maximum number of chat folders exceeded"));
-  }
-  if (!is_update_chat_folders_sent_) {
-    return promise.set_error(Status::Error(400, "Chat folders are not synchronized yet"));
-  }
-
-  DialogFilterId dialog_filter_id;
-  do {
-    auto min_id = static_cast<int>(DialogFilterId::min().get());
-    auto max_id = static_cast<int>(DialogFilterId::max().get());
-    dialog_filter_id = DialogFilterId(static_cast<int32>(Random::fast(min_id, max_id)));
-  } while (get_dialog_filter(dialog_filter_id) != nullptr || get_server_dialog_filter(dialog_filter_id) != nullptr);
-
-  TRY_RESULT_PROMISE(promise, dialog_filter,
-                     DialogFilter::create_dialog_filter(td_, dialog_filter_id, std::move(filter)));
-  if (dialog_filter->is_shareable()) {
-    return promise.set_error(Status::Error(400, "Can't create shareable folder"));
-  }
-  auto chat_folder_info = dialog_filter->get_chat_folder_info_object();
-
-  bool at_beginning = is_recommended_dialog_filter(dialog_filter.get());
-  add_dialog_filter(std::move(dialog_filter), at_beginning, "create_dialog_filter");
-  if (at_beginning && main_dialog_list_position_ != 0) {
-    main_dialog_list_position_++;
-  }
-  save_dialog_filters();
-  send_update_chat_folders();
-
-  synchronize_dialog_filters();
-  promise.set_value(std::move(chat_folder_info));
-}
-
-void DialogFilterManager::edit_dialog_filter(DialogFilterId dialog_filter_id,
-                                             td_api::object_ptr<td_api::chatFolder> filter,
-                                             Promise<td_api::object_ptr<td_api::chatFolderInfo>> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto old_dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (old_dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  CHECK(is_update_chat_folders_sent_);
-
-  TRY_RESULT_PROMISE(promise, new_dialog_filter,
-                     DialogFilter::create_dialog_filter(td_, dialog_filter_id, std::move(filter)));
-  if (new_dialog_filter->is_shareable() != old_dialog_filter->is_shareable()) {
-    return promise.set_error(Status::Error(400, "Can't convert a shareable folder to a non-shareable"));
-  }
-  new_dialog_filter->update_from(*old_dialog_filter);
-  auto chat_folder_info = new_dialog_filter->get_chat_folder_info_object();
-
-  if (*new_dialog_filter == *old_dialog_filter) {
-    return promise.set_value(std::move(chat_folder_info));
-  }
-
-  do_edit_dialog_filter(std::move(new_dialog_filter), true, "edit_dialog_filter");
-
-  promise.set_value(std::move(chat_folder_info));
-}
-
-void DialogFilterManager::do_edit_dialog_filter(unique_ptr<DialogFilter> &&filter, bool need_synchronize,
-                                                const char *source) {
-  edit_dialog_filter(std::move(filter), source);
-  save_dialog_filters();
-  send_update_chat_folders();
-
-  if (need_synchronize) {
-    synchronize_dialog_filters();
-  }
-}
-
-void DialogFilterManager::update_dialog_filter_on_server(unique_ptr<DialogFilter> &&dialog_filter) {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(dialog_filter != nullptr);
-  are_dialog_filters_being_synchronized_ = true;
-  dialog_filter->remove_secret_chat_dialog_ids();
-  auto dialog_filter_id = dialog_filter->get_dialog_filter_id();
-  auto input_dialog_filter = dialog_filter->get_input_dialog_filter();
-
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_filter = std::move(dialog_filter)](Result<Unit> result) mutable {
-        send_closure(actor_id, &DialogFilterManager::on_update_dialog_filter, std::move(dialog_filter),
-                     result.is_error() ? result.move_as_error() : Status::OK());
-      });
-  td_->create_handler<UpdateDialogFilterQuery>(std::move(promise))
-      ->send(dialog_filter_id, std::move(input_dialog_filter));
-}
-
-void DialogFilterManager::on_update_dialog_filter(unique_ptr<DialogFilter> dialog_filter, Status result) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (result.is_error()) {
-    // TODO rollback dialog_filters_ changes if error isn't 429
-  } else {
-    bool is_edited = false;
-    for (auto &server_dialog_filter : server_dialog_filters_) {
-      if (server_dialog_filter->get_dialog_filter_id() == dialog_filter->get_dialog_filter_id()) {
-        if (*server_dialog_filter != *dialog_filter) {
-          server_dialog_filter = std::move(dialog_filter);
-        }
-        is_edited = true;
-        break;
-      }
-    }
-
-    if (!is_edited) {
-      bool at_beginning = is_recommended_dialog_filter(dialog_filter.get());
-      if (at_beginning) {
-        server_dialog_filters_.insert(server_dialog_filters_.begin(), std::move(dialog_filter));
-      } else {
-        server_dialog_filters_.push_back(std::move(dialog_filter));
-      }
-      if (at_beginning && server_main_dialog_list_position_ != 0) {
-        server_main_dialog_list_position_++;
-      }
-    }
-    save_dialog_filters();
-  }
-
-  are_dialog_filters_being_synchronized_ = false;
-  synchronize_dialog_filters();
-}
-
-void DialogFilterManager::delete_dialog_filter(DialogFilterId dialog_filter_id, vector<DialogId> leave_dialog_ids,
-                                               Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(!td_->auth_manager_->is_bot());
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_value(Unit());
-  }
-  for (auto &leave_dialog_id : leave_dialog_ids) {
-    if (!dialog_filter->is_dialog_included(leave_dialog_id)) {
-      return promise.set_error(Status::Error(400, "The chat doesn't included in the folder"));
-    }
-  }
-  if (!leave_dialog_ids.empty()) {
-    MultiPromiseActorSafe mpas{"LeaveDialogsMultiPromiseActor"};
-    mpas.add_promise(PromiseCreator::lambda(
-        [actor_id = actor_id(this), dialog_filter_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-          send_closure(actor_id, &DialogFilterManager::delete_dialog_filter, dialog_filter_id, vector<DialogId>(),
-                       std::move(promise));
-        }));
-    auto lock = mpas.get_promise();
-
-    for (auto &leave_dialog_id : leave_dialog_ids) {
-      td_->dialog_participant_manager_->leave_dialog(leave_dialog_id, mpas.get_promise());
-    }
-
-    lock.set_value(Unit());
-    return;
-  }
-
-  int32 position = do_delete_dialog_filter(dialog_filter_id, "delete_dialog_filter");
-  if (main_dialog_list_position_ > position) {
-    main_dialog_list_position_--;
-  }
-  save_dialog_filters();
-  send_update_chat_folders();
-
-  synchronize_dialog_filters();
-  promise.set_value(Unit());
-}
-
-void DialogFilterManager::delete_dialog_filter_on_server(DialogFilterId dialog_filter_id, bool is_shareable) {
-  CHECK(!td_->auth_manager_->is_bot());
-  are_dialog_filters_being_synchronized_ = true;
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_filter_id](Result<Unit> result) {
-    send_closure(actor_id, &DialogFilterManager::on_delete_dialog_filter, dialog_filter_id,
-                 result.is_error() ? result.move_as_error() : Status::OK());
-  });
-  if (is_shareable) {
-    td_->create_handler<LeaveChatlistQuery>(std::move(promise))->send(dialog_filter_id);
-  } else {
-    td_->create_handler<UpdateDialogFilterQuery>(std::move(promise))->send(dialog_filter_id, nullptr);
-  }
-}
-
-void DialogFilterManager::on_delete_dialog_filter(DialogFilterId dialog_filter_id, Status result) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (result.is_error()) {
-    // TODO rollback dialog_filters_ changes if error isn't 429
-  } else {
-    for (auto it = server_dialog_filters_.begin(); it != server_dialog_filters_.end(); ++it) {
-      if ((*it)->get_dialog_filter_id() == dialog_filter_id) {
-        server_dialog_filters_.erase(it);
-        save_dialog_filters();
-        break;
-      }
-    }
-  }
-
-  are_dialog_filters_being_synchronized_ = false;
-  synchronize_dialog_filters();
-}
-
-void DialogFilterManager::get_leave_dialog_filter_suggestions(DialogFilterId dialog_filter_id,
-                                                              Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  if (!dialog_filter->is_shareable()) {
-    return promise.set_value(td_api::make_object<td_api::chats>());
-  }
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), dialog_filter_id, promise = std::move(promise)](
-                                 Result<vector<telegram_api::object_ptr<telegram_api::Peer>>> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &DialogFilterManager::on_get_leave_dialog_filter_suggestions, dialog_filter_id,
-                     result.move_as_ok(), std::move(promise));
-      });
-  td_->create_handler<GetLeaveChatlistSuggestionsQuery>(std::move(query_promise))->send(dialog_filter_id);
-}
-
-void DialogFilterManager::on_get_leave_dialog_filter_suggestions(
-    DialogFilterId dialog_filter_id, vector<telegram_api::object_ptr<telegram_api::Peer>> peers,
-    Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  if (!dialog_filter->is_shareable()) {
-    return promise.set_value(td_api::make_object<td_api::chats>());
-  }
-
-  auto dialog_ids = td_->dialog_manager_->get_peers_dialog_ids(std::move(peers));
-  td::remove_if(dialog_ids, [&](DialogId dialog_id) { return !dialog_filter->is_dialog_included(dialog_id); });
-  promise.set_value(td_->dialog_manager_->get_chats_object(-1, dialog_ids, "on_get_leave_dialog_filter_suggestions"));
-}
-
-void DialogFilterManager::reorder_dialog_filters(vector<DialogFilterId> dialog_filter_ids,
-                                                 int32 main_dialog_list_position, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  for (auto dialog_filter_id : dialog_filter_ids) {
-    auto dialog_filter = get_dialog_filter(dialog_filter_id);
-    if (dialog_filter == nullptr) {
-      return promise.set_error(Status::Error(400, "Chat folder not found"));
-    }
-  }
-  std::unordered_set<DialogFilterId, DialogFilterIdHash> new_dialog_filter_ids_set(dialog_filter_ids.begin(),
-                                                                                   dialog_filter_ids.end());
-  if (new_dialog_filter_ids_set.size() != dialog_filter_ids.size()) {
-    return promise.set_error(Status::Error(400, "Duplicate chat folders in the new list"));
-  }
-  if (main_dialog_list_position < 0 || main_dialog_list_position > static_cast<int32>(dialog_filters_.size())) {
-    return promise.set_error(Status::Error(400, "Invalid main chat list position specified"));
-  }
-  if (!td_->option_manager_->get_option_boolean("is_premium")) {
-    main_dialog_list_position = 0;
-  }
-
-  if (DialogFilter::set_dialog_filters_order(dialog_filters_, dialog_filter_ids) ||
-      main_dialog_list_position != main_dialog_list_position_) {
-    main_dialog_list_position_ = main_dialog_list_position;
-
-    save_dialog_filters();
-    send_update_chat_folders();
-
-    synchronize_dialog_filters();
-  }
-  promise.set_value(Unit());
-}
-
-void DialogFilterManager::reorder_dialog_filters_on_server(vector<DialogFilterId> dialog_filter_ids,
-                                                           int32 main_dialog_list_position) {
-  CHECK(!td_->auth_manager_->is_bot());
-  are_dialog_filters_being_synchronized_ = true;
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_filter_ids, main_dialog_list_position](Result<Unit> result) mutable {
-        send_closure(actor_id, &DialogFilterManager::on_reorder_dialog_filters, std::move(dialog_filter_ids),
-                     main_dialog_list_position, result.is_error() ? result.move_as_error() : Status::OK());
-      });
-  td_->create_handler<UpdateDialogFiltersOrderQuery>(std::move(promise))
-      ->send(dialog_filter_ids, main_dialog_list_position);
-}
-
-void DialogFilterManager::on_reorder_dialog_filters(vector<DialogFilterId> dialog_filter_ids,
-                                                    int32 main_dialog_list_position, Status result) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (result.is_error()) {
-    // TODO rollback dialog_filters_ changes if error isn't 429
-  } else {
-    if (DialogFilter::set_dialog_filters_order(server_dialog_filters_, std::move(dialog_filter_ids)) ||
-        server_main_dialog_list_position_ != main_dialog_list_position) {
-      server_main_dialog_list_position_ = main_dialog_list_position;
-      save_dialog_filters();
-    }
-  }
-
-  are_dialog_filters_being_synchronized_ = false;
-  synchronize_dialog_filters();
-}
-
-void DialogFilterManager::toggle_dialog_filter_tags(bool are_tags_enabled, Promise<Unit> &&promise) {
-  if (!td_->option_manager_->get_option_boolean("is_premium")) {
-    if (!are_tags_enabled) {
-      return promise.set_value(Unit());
-    }
-    return promise.set_error(Status::Error(400, "Method not available"));
-  }
-
-  if (are_tags_enabled_ != are_tags_enabled) {
-    are_tags_enabled_ = are_tags_enabled;
-
-    save_dialog_filters();
-    send_update_chat_folders();
-
-    synchronize_dialog_filters();
-  }
-  promise.set_value(Unit());
-}
-
-void DialogFilterManager::toggle_are_tags_enabled_on_server(bool are_tags_enabled) {
-  CHECK(!td_->auth_manager_->is_bot());
-  are_dialog_filters_being_synchronized_ = true;
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), are_tags_enabled](Result<Unit> result) mutable {
-    send_closure(actor_id, &DialogFilterManager::on_toggle_are_tags_enabled, are_tags_enabled,
-                 result.is_error() ? result.move_as_error() : Status::OK());
-  });
-  td_->create_handler<ToggleDialogFilterTagsQuery>(std::move(promise))->send(are_tags_enabled);
-}
-
-void DialogFilterManager::on_toggle_are_tags_enabled(bool are_tags_enabled, Status result) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (result.is_error()) {
-    are_tags_enabled_ = !are_tags_enabled;
-  } else {
-    if (server_are_tags_enabled_ != are_tags_enabled) {
-      server_are_tags_enabled_ = are_tags_enabled;
-      save_dialog_filters();
-    }
-  }
-
-  are_dialog_filters_being_synchronized_ = false;
-  synchronize_dialog_filters();
-}
-
-void DialogFilterManager::add_dialog_filter(unique_ptr<DialogFilter> dialog_filter, bool at_beginning,
-                                            const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  CHECK(dialog_filter != nullptr);
-  auto dialog_filter_id = dialog_filter->get_dialog_filter_id();
-  LOG(INFO) << "Add " << dialog_filter_id << " from " << source;
-  CHECK(get_dialog_filter(dialog_filter_id) == nullptr);
-  if (at_beginning) {
-    dialog_filters_.insert(dialog_filters_.begin(), std::move(dialog_filter));
-  } else {
-    dialog_filters_.push_back(std::move(dialog_filter));
-  }
-
-  td_->messages_manager_->add_dialog_list_for_dialog_filter(dialog_filter_id);
-}
-
-void DialogFilterManager::edit_dialog_filter(unique_ptr<DialogFilter> new_dialog_filter, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  CHECK(new_dialog_filter != nullptr);
-  LOG(INFO) << "Edit " << new_dialog_filter->get_dialog_filter_id() << " from " << source;
-  for (auto &old_dialog_filter : dialog_filters_) {
-    if (old_dialog_filter->get_dialog_filter_id() == new_dialog_filter->get_dialog_filter_id()) {
-      CHECK(*old_dialog_filter != *new_dialog_filter);
-
-      disable_get_dialog_filter_ = true;  // to ensure crash if get_dialog_filter is called
-
-      td_->messages_manager_->edit_dialog_list_for_dialog_filter(old_dialog_filter, std::move(new_dialog_filter),
-                                                                 disable_get_dialog_filter_, source);
-      return;
-    }
-  }
-  UNREACHABLE();
-}
-
-int32 DialogFilterManager::do_delete_dialog_filter(DialogFilterId dialog_filter_id, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return -1;
-  }
-
-  LOG(INFO) << "Delete " << dialog_filter_id << " from " << source;
-  for (auto it = dialog_filters_.begin(); it != dialog_filters_.end(); ++it) {
-    if ((*it)->get_dialog_filter_id() == dialog_filter_id) {
-      auto position = static_cast<int32>(it - dialog_filters_.begin());
-      td_->messages_manager_->delete_dialog_list_for_dialog_filter(dialog_filter_id, source);
-      dialog_filters_.erase(it);
-      return position;
-    }
-  }
-  UNREACHABLE();
-  return -1;
-}
-
-void DialogFilterManager::save_dialog_filters() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  DialogFiltersLogEvent log_event;
-  log_event.server_are_tags_enabled = server_are_tags_enabled_;
-  log_event.are_tags_enabled = are_tags_enabled_;
-  log_event.server_main_dialog_list_position = server_main_dialog_list_position_;
-  log_event.main_dialog_list_position = main_dialog_list_position_;
-  log_event.updated_date = dialog_filters_updated_date_;
-  log_event.server_dialog_filters_in = &server_dialog_filters_;
-  log_event.dialog_filters_in = &dialog_filters_;
-
-  LOG(INFO) << "Save server chat folders "
-            << DialogFilter::get_dialog_filter_ids(server_dialog_filters_, server_main_dialog_list_position_)
-            << " and local chat folders "
-            << DialogFilter::get_dialog_filter_ids(dialog_filters_, main_dialog_list_position_);
-
-  G()->td_db()->get_binlog_pmc()->set("dialog_filters", log_event_store(log_event).as_slice().str());
-}
-
-void DialogFilterManager::get_dialogs_for_dialog_filter_invite_link(
-    DialogFilterId dialog_filter_id, Promise<td_api::object_ptr<td_api::chats>> promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-
-  auto load_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_filter_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &DialogFilterManager::do_get_dialogs_for_dialog_filter_invite_link, dialog_filter_id,
-                     std::move(promise));
-      });
-  load_dialog_filter(dialog_filter, std::move(load_promise));
-}
-
-void DialogFilterManager::do_get_dialogs_for_dialog_filter_invite_link(
-    DialogFilterId dialog_filter_id, Promise<td_api::object_ptr<td_api::chats>> promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-
-  promise.set_value(td_->dialog_manager_->get_chats_object(-1, dialog_filter->get_dialogs_for_invite_link(td_),
-                                                           "do_get_dialogs_for_dialog_filter_invite_link"));
-}
-
-void DialogFilterManager::create_dialog_filter_invite_link(
-    DialogFilterId dialog_filter_id, string invite_link_name, vector<DialogId> dialog_ids,
-    Promise<td_api::object_ptr<td_api::chatFolderInviteLink>> promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  vector<tl_object_ptr<telegram_api::InputPeer>> input_peers;
-  input_peers.reserve(dialog_ids.size());
-  for (auto &dialog_id : dialog_ids) {
-    if (!td_->dialog_manager_->have_dialog_force(dialog_id, "create_dialog_filter_invite_link")) {
-      return promise.set_error(Status::Error(400, "Chat not found"));
-    }
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return promise.set_error(Status::Error(400, "Have no access to the chat"));
-    }
-    input_peers.push_back(std::move(input_peer));
-  }
-  if (input_peers.empty()) {
-    return promise.set_error(Status::Error(400, "At least one chat must be included"));
-  }
-  td_->create_handler<ExportChatlistInviteQuery>(std::move(promise))
-      ->send(dialog_filter_id, invite_link_name, std::move(input_peers));
-}
-
-void DialogFilterManager::get_dialog_filter_invite_links(
-    DialogFilterId dialog_filter_id, Promise<td_api::object_ptr<td_api::chatFolderInviteLinks>> promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  if (!dialog_filter->is_shareable()) {
-    return promise.set_value(td_api::make_object<td_api::chatFolderInviteLinks>());
-  }
-  td_->create_handler<GetExportedChatlistInvitesQuery>(std::move(promise))->send(dialog_filter_id);
-}
-
-void DialogFilterManager::edit_dialog_filter_invite_link(
-    DialogFilterId dialog_filter_id, string invite_link, string invite_link_name, vector<DialogId> dialog_ids,
-    Promise<td_api::object_ptr<td_api::chatFolderInviteLink>> promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  vector<tl_object_ptr<telegram_api::InputPeer>> input_peers;
-  input_peers.reserve(dialog_ids.size());
-  for (auto &dialog_id : dialog_ids) {
-    if (!td_->dialog_manager_->have_dialog_force(dialog_id, "edit_dialog_filter_invite_link")) {
-      return promise.set_error(Status::Error(400, "Chat not found"));
-    }
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return promise.set_error(Status::Error(400, "Have no access to the chat"));
-    }
-    input_peers.push_back(std::move(input_peer));
-  }
-  if (input_peers.empty()) {
-    return promise.set_error(Status::Error(400, "At least one chat must be included"));
-  }
-  td_->create_handler<EditExportedChatlistInviteQuery>(std::move(promise))
-      ->send(dialog_filter_id, invite_link, invite_link_name, std::move(input_peers));
-}
-
-void DialogFilterManager::delete_dialog_filter_invite_link(DialogFilterId dialog_filter_id, string invite_link,
-                                                           Promise<Unit> promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  td_->create_handler<DeleteExportedChatlistInviteQuery>(std::move(promise))->send(dialog_filter_id, invite_link);
-}
-
-void DialogFilterManager::check_dialog_filter_invite_link(
-    const string &invite_link, Promise<td_api::object_ptr<td_api::chatFolderInviteLinkInfo>> &&promise) {
-  if (!DialogFilterInviteLink::is_valid_invite_link(invite_link)) {
-    return promise.set_error(Status::Error(400, "Wrong invite link"));
-  }
-
-  CHECK(!invite_link.empty());
-  td_->create_handler<CheckChatlistInviteQuery>(std::move(promise))->send(invite_link);
-}
-
-void DialogFilterManager::on_get_chatlist_invite(
-    const string &invite_link, telegram_api::object_ptr<telegram_api::chatlists_ChatlistInvite> &&invite_ptr,
-    Promise<td_api::object_ptr<td_api::chatFolderInviteLinkInfo>> &&promise) {
-  CHECK(invite_ptr != nullptr);
-  LOG(INFO) << "Receive information about chat folder invite link " << invite_link << ": " << to_string(invite_ptr);
-
-  td_api::object_ptr<td_api::chatFolderInfo> info;
-  vector<telegram_api::object_ptr<telegram_api::Peer>> missing_peers;
-  vector<telegram_api::object_ptr<telegram_api::Peer>> already_peers;
-  vector<telegram_api::object_ptr<telegram_api::Chat>> chats;
-  vector<telegram_api::object_ptr<telegram_api::User>> users;
-  switch (invite_ptr->get_id()) {
-    case telegram_api::chatlists_chatlistInviteAlready::ID: {
-      auto invite = move_tl_object_as<telegram_api::chatlists_chatlistInviteAlready>(invite_ptr);
-      DialogFilterId dialog_filter_id = DialogFilterId(invite->filter_id_);
-      if (!dialog_filter_id.is_valid()) {
-        return promise.set_error(Status::Error(500, "Receive invalid chat folder identifier"));
-      }
-      auto dialog_filter = get_dialog_filter(dialog_filter_id);
-      if (dialog_filter == nullptr) {
-        reload_dialog_filters();
-        return promise.set_error(Status::Error(500, "Receive unknown chat folder"));
-      }
-      info = dialog_filter->get_chat_folder_info_object();
-      missing_peers = std::move(invite->missing_peers_);
-      already_peers = std::move(invite->already_peers_);
-      chats = std::move(invite->chats_);
-      users = std::move(invite->users_);
-      break;
-    }
-    case telegram_api::chatlists_chatlistInvite::ID: {
-      auto invite = move_tl_object_as<telegram_api::chatlists_chatlistInvite>(invite_ptr);
-      auto icon_name = DialogFilter::get_icon_name_by_emoji(invite->emoticon_);
-      if (icon_name.empty()) {
-        icon_name = "Custom";
-      }
-
-      auto title = get_formatted_text(nullptr, std::move(invite->title_), true, false, "chatlistInvite");
-      keep_only_custom_emoji(title);
-      auto name = td_api::make_object<td_api::chatFolderName>(get_formatted_text_object(nullptr, title, true, -1),
-                                                              !invite->title_noanimate_);
-      info = td_api::make_object<td_api::chatFolderInfo>(
-          0, std::move(name), td_api::make_object<td_api::chatFolderIcon>(icon_name), -1, true, false);
-      missing_peers = std::move(invite->peers_);
-      chats = std::move(invite->chats_);
-      users = std::move(invite->users_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  td_->user_manager_->on_get_users(std::move(users), "on_get_chatlist_invite");
-  td_->chat_manager_->on_get_chats(std::move(chats), "on_get_chatlist_invite");
-
-  auto missing_dialog_ids = td_->dialog_manager_->get_peers_dialog_ids(std::move(missing_peers), true);
-  auto already_dialog_ids = td_->dialog_manager_->get_peers_dialog_ids(std::move(already_peers));
-  promise.set_value(td_api::make_object<td_api::chatFolderInviteLinkInfo>(
-      std::move(info), td_->dialog_manager_->get_chat_ids_object(missing_dialog_ids, "chatFolderInviteLinkInfo 1"),
-      td_->dialog_manager_->get_chat_ids_object(already_dialog_ids, "chatFolderInviteLinkInfo 1")));
-}
-
-void DialogFilterManager::add_dialog_filter_by_invite_link(const string &invite_link, vector<DialogId> dialog_ids,
-                                                           Promise<Unit> &&promise) {
-  if (!DialogFilterInviteLink::is_valid_invite_link(invite_link)) {
-    return promise.set_error(Status::Error(400, "Wrong invite link"));
-  }
-  for (auto dialog_id : dialog_ids) {
-    TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Know,
-                                                                          "add_dialog_filter_by_invite_link"));
-  }
-
-  CHECK(!invite_link.empty());
-  td_->create_handler<JoinChatlistInviteQuery>(std::move(promise))->send(invite_link, std::move(dialog_ids));
-}
-
-void DialogFilterManager::get_dialog_filter_new_chats(DialogFilterId dialog_filter_id,
-                                                      Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  if (!dialog_filter->is_shareable()) {
-    return promise.set_value(td_api::make_object<td_api::chats>());
-  }
-  td_->create_handler<GetChatlistUpdatesQuery>(std::move(promise))->send(dialog_filter_id);
-}
-
-void DialogFilterManager::add_dialog_filter_new_chats(DialogFilterId dialog_filter_id, vector<DialogId> dialog_ids,
-                                                      Promise<Unit> &&promise) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat folder not found"));
-  }
-  if (!dialog_filter->is_shareable()) {
-    return promise.set_error(Status::Error(400, "Chat folder must be shareable"));
-  }
-  for (auto dialog_id : dialog_ids) {
-    TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Know,
-                                                                          "add_dialog_filter_new_chats"));
-  }
-
-  if (dialog_ids.empty()) {
-    td_->create_handler<HideChatlistUpdatesQuery>(std::move(promise))->send(dialog_filter_id);
-  } else {
-    td_->create_handler<JoinChatlistUpdatesQuery>(std::move(promise))->send(dialog_filter_id, std::move(dialog_ids));
-  }
-}
-
-void DialogFilterManager::set_dialog_filter_has_my_invite_links(DialogFilterId dialog_filter_id,
-                                                                bool has_my_invite_links) {
-  auto dialog_filter = get_dialog_filter(dialog_filter_id);
-  if (dialog_filter == nullptr) {
-    return;
-  }
-  dialog_filter->set_has_my_invite_links(has_my_invite_links);
-}
-
-void DialogFilterManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (have_dialog_filters()) {
-    updates.push_back(get_update_chat_folders_object());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogFilterManager.h b/third-party/td/td/td/telegram/DialogFilterManager.h
deleted file mode 100644
index c8383c62cb..0000000000
--- a/third-party/td/td/td/telegram/DialogFilterManager.h
+++ /dev/null
@@ -1,253 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogFilterDialogInfo.h"
-#include "td/telegram/DialogFilterId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/InputDialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class DialogFilter;
-class Td;
-
-class DialogFilterManager final : public Actor {
- public:
-  DialogFilterManager(Td *td, ActorShared<> parent);
-  DialogFilterManager(const DialogFilterManager &) = delete;
-  DialogFilterManager &operator=(const DialogFilterManager &) = delete;
-  DialogFilterManager(DialogFilterManager &&) = delete;
-  DialogFilterManager &operator=(DialogFilterManager &&) = delete;
-  ~DialogFilterManager() final;
-
-  void init();
-
-  void on_authorization_success();
-
-  void on_update_dialog_filters(Promise<Unit> &&promise);
-
-  void schedule_reload_dialog_filters(Promise<Unit> &&promise);
-
-  bool have_dialog_filters() const;
-
-  vector<FolderId> get_dialog_filter_folder_ids(DialogFilterId dialog_filter_id) const;
-
-  vector<DialogFilterId> get_dialog_filters_to_add_dialog(DialogId dialog_id) const;
-
-  bool need_dialog_in_filter(DialogFilterId dialog_filter_id, const DialogFilterDialogInfo &dialog_info) const;
-
-  bool is_dialog_pinned(DialogFilterId dialog_filter_id, DialogId dialog_id) const;
-
-  const vector<InputDialogId> &get_pinned_input_dialog_ids(DialogFilterId dialog_filter_id) const;
-
-  vector<DialogId> get_pinned_dialog_ids(DialogFilterId dialog_filter_id) const;
-
-  Status set_dialog_is_pinned(DialogFilterId dialog_filter_id, InputDialogId input_dialog_id, bool is_pinned);
-
-  Status set_pinned_dialog_ids(DialogFilterId dialog_filter_id, vector<InputDialogId> input_dialog_ids,
-                               bool need_synchronize);
-
-  Status add_dialog(DialogFilterId dialog_filter_id, InputDialogId input_dialog_id);
-
-  void get_dialog_filter(DialogFilterId dialog_filter_id, Promise<td_api::object_ptr<td_api::chatFolder>> &&promise);
-
-  void create_dialog_filter(td_api::object_ptr<td_api::chatFolder> filter,
-                            Promise<td_api::object_ptr<td_api::chatFolderInfo>> &&promise);
-
-  void edit_dialog_filter(DialogFilterId dialog_filter_id, td_api::object_ptr<td_api::chatFolder> filter,
-                          Promise<td_api::object_ptr<td_api::chatFolderInfo>> &&promise);
-
-  void delete_dialog_filter(DialogFilterId dialog_filter_id, vector<DialogId> leave_dialog_ids,
-                            Promise<Unit> &&promise);
-
-  void get_leave_dialog_filter_suggestions(DialogFilterId dialog_filter_id,
-                                           Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void reorder_dialog_filters(vector<DialogFilterId> dialog_filter_ids, int32 main_dialog_list_position,
-                              Promise<Unit> &&promise);
-
-  void toggle_dialog_filter_tags(bool are_tags_enabled, Promise<Unit> &&promise);
-
-  void get_dialogs_for_dialog_filter_invite_link(DialogFilterId dialog_filter_id,
-                                                 Promise<td_api::object_ptr<td_api::chats>> promise);
-
-  void create_dialog_filter_invite_link(DialogFilterId dialog_filter_id, string invite_link_name,
-                                        vector<DialogId> dialog_ids,
-                                        Promise<td_api::object_ptr<td_api::chatFolderInviteLink>> promise);
-
-  void get_dialog_filter_invite_links(DialogFilterId dialog_filter_id,
-                                      Promise<td_api::object_ptr<td_api::chatFolderInviteLinks>> promise);
-
-  void edit_dialog_filter_invite_link(DialogFilterId dialog_filter_id, string invite_link, string invite_link_name,
-                                      vector<DialogId> dialog_ids,
-                                      Promise<td_api::object_ptr<td_api::chatFolderInviteLink>> promise);
-
-  void delete_dialog_filter_invite_link(DialogFilterId dialog_filter_id, string invite_link, Promise<Unit> promise);
-
-  void check_dialog_filter_invite_link(const string &invite_link,
-                                       Promise<td_api::object_ptr<td_api::chatFolderInviteLinkInfo>> &&promise);
-
-  void on_get_chatlist_invite(const string &invite_link,
-                              telegram_api::object_ptr<telegram_api::chatlists_ChatlistInvite> &&invite_ptr,
-                              Promise<td_api::object_ptr<td_api::chatFolderInviteLinkInfo>> &&promise);
-
-  void add_dialog_filter_by_invite_link(const string &invite_link, vector<DialogId> dialog_ids,
-                                        Promise<Unit> &&promise);
-
-  void get_dialog_filter_new_chats(DialogFilterId dialog_filter_id,
-                                   Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void add_dialog_filter_new_chats(DialogFilterId dialog_filter_id, vector<DialogId> dialog_ids,
-                                   Promise<Unit> &&promise);
-
-  void on_get_dialog_filter(telegram_api::object_ptr<telegram_api::DialogFilter> filter);
-
-  void get_recommended_dialog_filters(Promise<td_api::object_ptr<td_api::recommendedChatFolders>> &&promise);
-
-  void load_dialog_filter_dialogs(DialogFilterId dialog_filter_id, vector<InputDialogId> &&input_dialog_ids,
-                                  Promise<Unit> &&promise);
-
-  void load_input_dialog(const InputDialogId &input_dialog_id, Promise<Unit> &&promise);
-
-  void set_dialog_filter_has_my_invite_links(DialogFilterId dialog_filter_id, bool has_my_invite_links);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  static constexpr int32 DIALOG_FILTERS_CACHE_TIME = 86400;
-
-  class DialogFiltersLogEvent;
-
-  void hangup() final;
-
-  void tear_down() final;
-
-  struct RecommendedDialogFilter {
-    unique_ptr<DialogFilter> dialog_filter;
-    string description;
-  };
-
-  DialogFilter *get_dialog_filter(DialogFilterId dialog_filter_id);
-
-  const DialogFilter *get_dialog_filter(DialogFilterId dialog_filter_id) const;
-
-  static double get_dialog_filters_cache_time();
-
-  void schedule_dialog_filters_reload(double timeout);
-
-  static void on_reload_dialog_filters_timeout(void *dialog_filter_manager_ptr);
-
-  void reload_dialog_filters();
-
-  void on_get_dialog_filters(Result<telegram_api::object_ptr<telegram_api::messages_dialogFilters>> r_filters,
-                             bool dummy);
-
-  bool need_synchronize_dialog_filters() const;
-
-  void synchronize_dialog_filters();
-
-  td_api::object_ptr<td_api::chatFolder> get_chat_folder_object(DialogFilterId dialog_filter_id);
-
-  td_api::object_ptr<td_api::chatFolder> get_chat_folder_object(const DialogFilter *dialog_filter);
-
-  void send_update_chat_folders();
-
-  td_api::object_ptr<td_api::updateChatFolders> get_update_chat_folders_object() const;
-
-  void do_edit_dialog_filter(unique_ptr<DialogFilter> &&filter, bool need_synchronize, const char *source);
-
-  void update_dialog_filter_on_server(unique_ptr<DialogFilter> &&dialog_filter);
-
-  void on_update_dialog_filter(unique_ptr<DialogFilter> dialog_filter, Status result);
-
-  void delete_dialog_filter_on_server(DialogFilterId dialog_filter_id, bool is_shareable);
-
-  void on_delete_dialog_filter(DialogFilterId dialog_filter_id, Status result);
-
-  void on_get_leave_dialog_filter_suggestions(DialogFilterId dialog_filter_id,
-                                              vector<telegram_api::object_ptr<telegram_api::Peer>> peers,
-                                              Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void reorder_dialog_filters_on_server(vector<DialogFilterId> dialog_filter_ids, int32 main_dialog_list_position);
-
-  void on_reorder_dialog_filters(vector<DialogFilterId> dialog_filter_ids, int32 main_dialog_list_position,
-                                 Status result);
-
-  void toggle_are_tags_enabled_on_server(bool are_tags_enabled);
-
-  void on_toggle_are_tags_enabled(bool are_tags_enabled, Status result);
-
-  void save_dialog_filters();
-
-  void add_dialog_filter(unique_ptr<DialogFilter> dialog_filter, bool at_beginning, const char *source);
-
-  void edit_dialog_filter(unique_ptr<DialogFilter> new_dialog_filter, const char *source);
-
-  int32 do_delete_dialog_filter(DialogFilterId dialog_filter_id, const char *source);
-
-  const DialogFilter *get_server_dialog_filter(DialogFilterId dialog_filter_id) const;
-
-  int32 get_server_main_dialog_list_position() const;
-
-  bool is_recommended_dialog_filter(const DialogFilter *dialog_filter);
-
-  void on_get_recommended_dialog_filters(
-      Result<vector<telegram_api::object_ptr<telegram_api::dialogFilterSuggested>>> result,
-      Promise<td_api::object_ptr<td_api::recommendedChatFolders>> &&promise);
-
-  void on_load_recommended_dialog_filters(Result<Unit> &&result, vector<RecommendedDialogFilter> &&filters,
-                                          Promise<td_api::object_ptr<td_api::recommendedChatFolders>> &&promise);
-
-  void load_dialog_filter(const DialogFilter *dialog_filter, Promise<Unit> &&promise);
-
-  void on_load_dialog_filter(DialogFilterId dialog_filter_id,
-                             Promise<td_api::object_ptr<td_api::chatFolder>> &&promise);
-
-  void on_load_dialog_filter_dialogs(DialogFilterId dialog_filter_id, vector<DialogId> &&dialog_ids,
-                                     Promise<Unit> &&promise);
-
-  void delete_dialogs_from_filter(const DialogFilter *dialog_filter, vector<DialogId> &&dialog_ids, const char *source);
-
-  void do_get_dialogs_for_dialog_filter_invite_link(DialogFilterId dialog_filter_id,
-                                                    Promise<td_api::object_ptr<td_api::chats>> promise);
-
-  bool is_inited_ = false;
-
-  bool are_dialog_filters_being_synchronized_ = false;
-  bool are_dialog_filters_being_reloaded_ = false;
-  bool need_dialog_filters_reload_ = false;
-  bool disable_get_dialog_filter_ = false;
-  bool is_update_chat_folders_sent_ = false;
-  bool server_are_tags_enabled_ = false;
-  bool are_tags_enabled_ = false;
-  int32 dialog_filters_updated_date_ = 0;
-  vector<unique_ptr<DialogFilter>> server_dialog_filters_;
-  vector<unique_ptr<DialogFilter>> dialog_filters_;
-  vector<Promise<Unit>> dialog_filter_reload_queries_;
-  int32 server_main_dialog_list_position_ = 0;  // position of the main dialog list stored on the server
-  int32 main_dialog_list_position_ = 0;         // local position of the main dialog list stored on the server
-
-  vector<RecommendedDialogFilter> recommended_dialog_filters_;
-
-  Timeout reload_dialog_filters_timeout_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogId.cpp b/third-party/td/td/td/telegram/DialogId.cpp
deleted file mode 100644
index 95f192b617..0000000000
--- a/third-party/td/td/td/telegram/DialogId.cpp
+++ /dev/null
@@ -1,187 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogId.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-
-#include <limits>
-
-namespace td {
-
-bool DialogId::is_valid() const {
-  return get_type() != DialogType::None;
-}
-
-DialogType DialogId::get_type() const {
-  // check that valid ranges are continuous
-  static_assert(ZERO_CHANNEL_ID + 1 == -ChatId::MAX_CHAT_ID, "");
-  static_assert(
-      ZERO_SECRET_CHAT_ID + std::numeric_limits<int32>::max() + 1 == ZERO_CHANNEL_ID - ChannelId::MAX_CHANNEL_ID, "");
-
-  if (id < 0) {
-    if (-ChatId::MAX_CHAT_ID <= id) {
-      return DialogType::Chat;
-    }
-    if (ZERO_CHANNEL_ID - ChannelId::MAX_CHANNEL_ID <= id && id != ZERO_CHANNEL_ID) {
-      return DialogType::Channel;
-    }
-    if (ZERO_SECRET_CHAT_ID + std::numeric_limits<int32>::min() <= id && id != ZERO_SECRET_CHAT_ID) {
-      return DialogType::SecretChat;
-    }
-  } else if (0 < id && id <= UserId::MAX_USER_ID) {
-    return DialogType::User;
-  }
-  return DialogType::None;
-}
-
-UserId DialogId::get_user_id() const {
-  CHECK(get_type() == DialogType::User);
-  return UserId(id);
-}
-
-ChatId DialogId::get_chat_id() const {
-  CHECK(get_type() == DialogType::Chat);
-  return ChatId(-id);
-}
-
-ChannelId DialogId::get_channel_id() const {
-  CHECK(get_type() == DialogType::Channel);
-  return ChannelId(ZERO_CHANNEL_ID - id);
-}
-
-SecretChatId DialogId::get_secret_chat_id() const {
-  CHECK(get_type() == DialogType::SecretChat);
-  return SecretChatId(static_cast<int32>(id - ZERO_SECRET_CHAT_ID));
-}
-
-DialogId::DialogId(UserId user_id) {
-  if (user_id.is_valid()) {
-    id = user_id.get();
-  } else {
-    id = 0;
-  }
-}
-
-DialogId::DialogId(ChatId chat_id) {
-  if (chat_id.is_valid()) {
-    id = -chat_id.get();
-  } else {
-    id = 0;
-  }
-}
-
-DialogId::DialogId(ChannelId channel_id) {
-  if (channel_id.is_valid()) {
-    id = ZERO_CHANNEL_ID - channel_id.get();
-  } else {
-    id = 0;
-  }
-}
-
-DialogId::DialogId(SecretChatId secret_chat_id) {
-  if (secret_chat_id.is_valid()) {
-    id = ZERO_SECRET_CHAT_ID + static_cast<int64>(secret_chat_id.get());
-  } else {
-    id = 0;
-  }
-}
-
-DialogId::DialogId(const tl_object_ptr<telegram_api::DialogPeer> &dialog_peer) {
-  CHECK(dialog_peer != nullptr);
-  switch (dialog_peer->get_id()) {
-    case telegram_api::dialogPeer::ID:
-      id = get_peer_id(static_cast<const telegram_api::dialogPeer *>(dialog_peer.get())->peer_);
-      break;
-    case telegram_api::dialogPeerFolder::ID:
-      LOG(ERROR) << "Receive unsupported " << to_string(dialog_peer);
-      id = 0;
-      break;
-    default:
-      id = 0;
-      UNREACHABLE();
-  }
-}
-
-DialogId::DialogId(const tl_object_ptr<telegram_api::Peer> &peer) : id(get_peer_id(peer)) {
-}
-
-int64 DialogId::get_peer_id(const tl_object_ptr<telegram_api::Peer> &peer) {
-  CHECK(peer != nullptr);
-
-  switch (peer->get_id()) {
-    case telegram_api::peerUser::ID: {
-      auto peer_user = static_cast<const telegram_api::peerUser *>(peer.get());
-      UserId user_id(peer_user->user_id_);
-      if (!user_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << user_id;
-        return 0;
-      }
-
-      return user_id.get();
-    }
-    case telegram_api::peerChat::ID: {
-      auto peer_chat = static_cast<const telegram_api::peerChat *>(peer.get());
-      ChatId chat_id(peer_chat->chat_id_);
-      if (!chat_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << chat_id;
-        return 0;
-      }
-
-      return -chat_id.get();
-    }
-    case telegram_api::peerChannel::ID: {
-      auto peer_channel = static_cast<const telegram_api::peerChannel *>(peer.get());
-      ChannelId channel_id(peer_channel->channel_id_);
-      if (!channel_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << channel_id;
-        return 0;
-      }
-
-      return ZERO_CHANNEL_ID - channel_id.get();
-    }
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-DialogId DialogId::get_message_dialog_id(const telegram_api::Message *message_ptr) {
-  CHECK(message_ptr != nullptr);
-  switch (message_ptr->get_id()) {
-    case telegram_api::messageEmpty::ID: {
-      auto message = static_cast<const telegram_api::messageEmpty *>(message_ptr);
-      return message->peer_id_ == nullptr ? DialogId() : DialogId(message->peer_id_);
-    }
-    case telegram_api::message::ID: {
-      auto message = static_cast<const telegram_api::message *>(message_ptr);
-      return DialogId(message->peer_id_);
-    }
-    case telegram_api::messageService::ID: {
-      auto message = static_cast<const telegram_api::messageService *>(message_ptr);
-      return DialogId(message->peer_id_);
-    }
-    default:
-      UNREACHABLE();
-      return DialogId();
-  }
-}
-
-DialogId DialogId::get_message_dialog_id(const tl_object_ptr<telegram_api::Message> &message_ptr) {
-  return get_message_dialog_id(message_ptr.get());
-}
-
-vector<DialogId> DialogId::get_dialog_ids(const vector<int64> &chat_ids) {
-  return transform(chat_ids, [](int64 chat_id) { return DialogId(chat_id); });
-}
-
-vector<DialogId> DialogId::remove_secret_chat_dialog_ids(vector<DialogId> dialog_ids) {
-  td::remove_if(dialog_ids, [](DialogId dialog_id) { return dialog_id.get_type() == DialogType::SecretChat; });
-  return dialog_ids;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogId.h b/third-party/td/td/td/telegram/DialogId.h
deleted file mode 100644
index 7ab5125442..0000000000
--- a/third-party/td/td/td/telegram/DialogId.h
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-enum class DialogType : int32 { None, User, Chat, Channel, SecretChat };
-
-class DialogId {
-  static constexpr int64 ZERO_SECRET_CHAT_ID = -2000000000000ll;
-  static constexpr int64 ZERO_CHANNEL_ID = -1000000000000ll;
-
-  int64 id = 0;
-
-  static int64 get_peer_id(const tl_object_ptr<telegram_api::Peer> &peer);
-
- public:
-  DialogId() = default;
-
-  explicit constexpr DialogId(int64 dialog_id) : id(dialog_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  DialogId(T dialog_id) = delete;
-
-  explicit DialogId(const tl_object_ptr<telegram_api::DialogPeer> &dialog_peer);
-  explicit DialogId(const tl_object_ptr<telegram_api::Peer> &peer);
-  explicit DialogId(UserId user_id);
-  explicit DialogId(ChatId chat_id);
-  explicit DialogId(ChannelId channel_id);
-  explicit DialogId(SecretChatId secret_chat_id);
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const DialogId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const DialogId &other) const {
-    return id != other.id;
-  }
-
-  bool is_valid() const;
-
-  DialogType get_type() const;
-
-  UserId get_user_id() const;
-  ChatId get_chat_id() const;
-  ChannelId get_channel_id() const;
-  SecretChatId get_secret_chat_id() const;
-
-  static DialogId get_message_dialog_id(const telegram_api::Message *message_ptr);
-
-  static DialogId get_message_dialog_id(const tl_object_ptr<telegram_api::Message> &message_ptr);
-
-  static vector<DialogId> get_dialog_ids(const vector<int64> &chat_ids);
-
-  static vector<DialogId> remove_secret_chat_dialog_ids(vector<DialogId> dialog_ids);
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_long();
-  }
-};
-
-struct DialogIdHash {
-  uint32 operator()(DialogId dialog_id) const {
-    return Hash<int64>()(dialog_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, DialogId dialog_id) {
-  return string_builder << "chat " << dialog_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogInviteLink.cpp b/third-party/td/td/td/telegram/DialogInviteLink.cpp
deleted file mode 100644
index 4e681c851d..0000000000
--- a/third-party/td/td/td/telegram/DialogInviteLink.cpp
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogInviteLink.h"
-
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-DialogInviteLink::DialogInviteLink(telegram_api::object_ptr<telegram_api::ExportedChatInvite> exported_invite_ptr,
-                                   bool allow_truncated, bool expect_join_request, const char *source) {
-  if (exported_invite_ptr == nullptr) {
-    return;
-  }
-  if (exported_invite_ptr->get_id() != telegram_api::chatInviteExported::ID) {
-    CHECK(exported_invite_ptr->get_id() == telegram_api::chatInvitePublicJoinRequests::ID);
-    if (!expect_join_request) {
-      LOG(ERROR) << "Receive from " << source << ' ' << to_string(exported_invite_ptr);
-    }
-    return;
-  }
-
-  auto exported_invite = telegram_api::move_object_as<telegram_api::chatInviteExported>(exported_invite_ptr);
-  invite_link_ = std::move(exported_invite->link_);
-  title_ = std::move(exported_invite->title_);
-  creator_user_id_ = UserId(exported_invite->admin_id_);
-  pricing_ = StarSubscriptionPricing(std::move(exported_invite->subscription_pricing_));
-  date_ = exported_invite->date_;
-  expire_date_ = exported_invite->expire_date_;
-  usage_limit_ = exported_invite->usage_limit_;
-  usage_count_ = exported_invite->usage_;
-  expired_usage_count_ = exported_invite->subscription_expired_;
-  edit_date_ = exported_invite->start_date_;
-  request_count_ = exported_invite->requested_;
-  creates_join_request_ = exported_invite->request_needed_;
-  is_revoked_ = exported_invite->revoked_;
-  is_permanent_ = exported_invite->permanent_;
-
-  string full_source = PSTRING() << "invite link " << invite_link_ << " from " << source;
-  LOG_IF(ERROR, !is_valid_invite_link(invite_link_, allow_truncated)) << "Unsupported " << full_source;
-  if (!creator_user_id_.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << creator_user_id_ << " as creator of " << full_source;
-    creator_user_id_ = UserId();
-  }
-  if (date_ != 0 && date_ < 1000000000) {
-    LOG(ERROR) << "Receive wrong date " << date_ << " as a creation date of " << full_source;
-    date_ = 0;
-  }
-  if (expire_date_ != 0 && expire_date_ < 1000000000) {
-    LOG(ERROR) << "Receive wrong date " << expire_date_ << " as an expire date of " << full_source;
-    expire_date_ = 0;
-  }
-  if (usage_limit_ < 0) {
-    LOG(ERROR) << "Receive wrong usage limit " << usage_limit_ << " for " << full_source;
-    usage_limit_ = 0;
-  }
-  if (usage_count_ < 0) {
-    LOG(ERROR) << "Receive wrong usage count " << usage_count_ << " for " << full_source;
-    usage_count_ = 0;
-  }
-  if (expired_usage_count_ < 0) {
-    LOG(ERROR) << "Receive wrong expired usage count " << expired_usage_count_ << " for " << full_source;
-    expired_usage_count_ = 0;
-  }
-  if (edit_date_ != 0 && edit_date_ < 1000000000) {
-    LOG(ERROR) << "Receive wrong date " << edit_date_ << " as an edit date of " << full_source;
-    edit_date_ = 0;
-  }
-  if (request_count_ < 0) {
-    LOG(ERROR) << "Receive wrong pending join request count " << request_count_ << " for " << full_source;
-    request_count_ = 0;
-  }
-
-  if (is_permanent_ && (!title_.empty() || expire_date_ > 0 || usage_limit_ > 0 || edit_date_ > 0 ||
-                        request_count_ > 0 || creates_join_request_)) {
-    LOG(ERROR) << "Receive wrong permanent " << full_source << ' ' << *this;
-    title_.clear();
-    expire_date_ = 0;
-    usage_limit_ = 0;
-    edit_date_ = 0;
-    request_count_ = 0;
-    creates_join_request_ = false;
-  }
-  if (creates_join_request_ && usage_limit_ > 0) {
-    LOG(ERROR) << "Receive wrong permanent " << full_source << ' ' << *this;
-    usage_limit_ = 0;
-  }
-}
-
-bool DialogInviteLink::is_valid_invite_link(Slice invite_link, bool allow_truncated) {
-  if (allow_truncated && ends_with(invite_link, "...")) {
-    invite_link.remove_suffix(3);
-  }
-  return !LinkManager::get_dialog_invite_link_hash(invite_link).empty();
-}
-
-td_api::object_ptr<td_api::chatInviteLink> DialogInviteLink::get_chat_invite_link_object(
-    const UserManager *user_manager) const {
-  CHECK(user_manager != nullptr);
-  if (!is_valid()) {
-    return nullptr;
-  }
-
-  return td_api::make_object<td_api::chatInviteLink>(
-      invite_link_, title_, user_manager->get_user_id_object(creator_user_id_, "get_chat_invite_link_object"), date_,
-      edit_date_, expire_date_, pricing_.get_star_subscription_pricing_object(), usage_limit_, usage_count_,
-      expired_usage_count_, request_count_, creates_join_request_, is_permanent_, is_revoked_);
-}
-
-bool operator==(const DialogInviteLink &lhs, const DialogInviteLink &rhs) {
-  return lhs.invite_link_ == rhs.invite_link_ && lhs.title_ == rhs.title_ &&
-         lhs.creator_user_id_ == rhs.creator_user_id_ && lhs.pricing_ == rhs.pricing_ && lhs.date_ == rhs.date_ &&
-         lhs.edit_date_ == rhs.edit_date_ && lhs.expire_date_ == rhs.expire_date_ &&
-         lhs.usage_limit_ == rhs.usage_limit_ && lhs.usage_count_ == rhs.usage_count_ &&
-         lhs.expired_usage_count_ == rhs.expired_usage_count_ && lhs.request_count_ == rhs.request_count_ &&
-         lhs.creates_join_request_ == rhs.creates_join_request_ && lhs.is_permanent_ == rhs.is_permanent_ &&
-         lhs.is_revoked_ == rhs.is_revoked_;
-}
-
-bool operator!=(const DialogInviteLink &lhs, const DialogInviteLink &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogInviteLink &invite_link) {
-  return string_builder << "ChatInviteLink[" << invite_link.invite_link_ << '(' << invite_link.title_ << ')'
-                        << (invite_link.creates_join_request_ ? " creating join request" : "") << " by "
-                        << invite_link.creator_user_id_ << " created at " << invite_link.date_ << " edited at "
-                        << invite_link.edit_date_ << " expiring at " << invite_link.expire_date_ << " used by "
-                        << invite_link.usage_count_ << " + " << invite_link.expired_usage_count_ << " with usage limit "
-                        << invite_link.usage_limit_ << ", " << invite_link.request_count_
-                        << " pending join requests and " << invite_link.pricing_ << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogInviteLink.h b/third-party/td/td/td/telegram/DialogInviteLink.h
deleted file mode 100644
index ef9f476672..0000000000
--- a/third-party/td/td/td/telegram/DialogInviteLink.h
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StarSubscriptionPricing.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class UserManager;
-
-class DialogInviteLink {
-  string invite_link_;
-  string title_;
-  UserId creator_user_id_;
-  StarSubscriptionPricing pricing_;
-  int32 date_ = 0;
-  int32 edit_date_ = 0;
-  int32 expire_date_ = 0;
-  int32 usage_limit_ = 0;
-  int32 usage_count_ = 0;
-  int32 expired_usage_count_ = 0;
-  int32 request_count_ = 0;
-  bool creates_join_request_ = false;
-  bool is_revoked_ = false;
-  bool is_permanent_ = false;
-
-  friend bool operator==(const DialogInviteLink &lhs, const DialogInviteLink &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogInviteLink &invite_link);
-
- public:
-  DialogInviteLink() = default;
-
-  DialogInviteLink(telegram_api::object_ptr<telegram_api::ExportedChatInvite> exported_invite_ptr, bool allow_truncated,
-                   bool expect_join_request, const char *source);
-
-  static bool is_valid_invite_link(Slice invite_link, bool allow_truncated = false);
-
-  td_api::object_ptr<td_api::chatInviteLink> get_chat_invite_link_object(const UserManager *user_manager) const;
-
-  bool is_valid() const {
-    return !invite_link_.empty() && creator_user_id_.is_valid() && date_ > 0;
-  }
-
-  bool is_permanent() const {
-    return is_permanent_;
-  }
-
-  const string &get_invite_link() const {
-    return invite_link_;
-  }
-
-  UserId get_creator_user_id() const {
-    return creator_user_id_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const DialogInviteLink &lhs, const DialogInviteLink &rhs);
-
-bool operator!=(const DialogInviteLink &lhs, const DialogInviteLink &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogInviteLink &invite_link);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogInviteLink.hpp b/third-party/td/td/td/telegram/DialogInviteLink.hpp
deleted file mode 100644
index ca34022b8d..0000000000
--- a/third-party/td/td/td/telegram/DialogInviteLink.hpp
+++ /dev/null
@@ -1,126 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogInviteLink.h"
-
-#include "td/telegram/StarSubscriptionPricing.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void DialogInviteLink::store(StorerT &storer) const {
-  using td::store;
-  bool has_expire_date = expire_date_ != 0;
-  bool has_usage_limit = usage_limit_ != 0;
-  bool has_usage_count = usage_count_ != 0;
-  bool has_edit_date = edit_date_ != 0;
-  bool has_request_count = request_count_ != 0;
-  bool has_title = !title_.empty();
-  bool has_pricing = !pricing_.is_empty();
-  bool has_expired_usage_count = expired_usage_count_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_revoked_);
-  STORE_FLAG(is_permanent_);
-  STORE_FLAG(has_expire_date);
-  STORE_FLAG(has_usage_limit);
-  STORE_FLAG(has_usage_count);
-  STORE_FLAG(has_edit_date);
-  STORE_FLAG(has_request_count);
-  STORE_FLAG(creates_join_request_);
-  STORE_FLAG(has_title);
-  STORE_FLAG(has_pricing);
-  STORE_FLAG(has_expired_usage_count);
-  END_STORE_FLAGS();
-  store(invite_link_, storer);
-  store(creator_user_id_, storer);
-  store(date_, storer);
-  if (has_expire_date) {
-    store(expire_date_, storer);
-  }
-  if (has_usage_limit) {
-    store(usage_limit_, storer);
-  }
-  if (has_usage_count) {
-    store(usage_count_, storer);
-  }
-  if (has_edit_date) {
-    store(edit_date_, storer);
-  }
-  if (has_request_count) {
-    store(request_count_, storer);
-  }
-  if (has_title) {
-    store(title_, storer);
-  }
-  if (has_pricing) {
-    store(pricing_, storer);
-  }
-  if (has_expired_usage_count) {
-    store(expired_usage_count_, storer);
-  }
-}
-
-template <class ParserT>
-void DialogInviteLink::parse(ParserT &parser) {
-  using td::parse;
-  bool has_expire_date;
-  bool has_usage_limit;
-  bool has_usage_count;
-  bool has_edit_date;
-  bool has_request_count;
-  bool has_title;
-  bool has_pricing;
-  bool has_expired_usage_count;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_revoked_);
-  PARSE_FLAG(is_permanent_);
-  PARSE_FLAG(has_expire_date);
-  PARSE_FLAG(has_usage_limit);
-  PARSE_FLAG(has_usage_count);
-  PARSE_FLAG(has_edit_date);
-  PARSE_FLAG(has_request_count);
-  PARSE_FLAG(creates_join_request_);
-  PARSE_FLAG(has_title);
-  PARSE_FLAG(has_pricing);
-  PARSE_FLAG(has_expired_usage_count);
-  END_PARSE_FLAGS();
-  parse(invite_link_, parser);
-  parse(creator_user_id_, parser);
-  parse(date_, parser);
-  if (has_expire_date) {
-    parse(expire_date_, parser);
-  }
-  if (has_usage_limit) {
-    parse(usage_limit_, parser);
-  }
-  if (has_usage_count) {
-    parse(usage_count_, parser);
-  }
-  if (has_edit_date) {
-    parse(edit_date_, parser);
-  }
-  if (has_request_count) {
-    parse(request_count_, parser);
-  }
-  if (has_title) {
-    parse(title_, parser);
-  }
-  if (has_pricing) {
-    parse(pricing_, parser);
-  }
-  if (has_expired_usage_count) {
-    parse(expired_usage_count_, parser);
-  }
-  if (creates_join_request_) {
-    usage_limit_ = 0;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogInviteLinkManager.cpp b/third-party/td/td/td/telegram/DialogInviteLinkManager.cpp
deleted file mode 100644
index 1140530457..0000000000
--- a/third-party/td/td/td/telegram/DialogInviteLinkManager.cpp
+++ /dev/null
@@ -1,1121 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogInviteLinkManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogInviteLink.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/VerificationStatus.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-class CheckChatInviteQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  string invite_link_;
-
- public:
-  explicit CheckChatInviteQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &invite_link) {
-    invite_link_ = invite_link;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_checkChatInvite(LinkManager::get_dialog_invite_link_hash(invite_link_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_checkChatInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CheckChatInviteQuery: " << to_string(ptr);
-
-    td_->dialog_invite_link_manager_->on_get_dialog_invite_link_info(invite_link_, std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ImportChatInviteQuery final : public Td::ResultHandler {
-  Promise<DialogId> promise_;
-
-  string invite_link_;
-
- public:
-  explicit ImportChatInviteQuery(Promise<DialogId> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &invite_link) {
-    invite_link_ = invite_link;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_importChatInvite(LinkManager::get_dialog_invite_link_hash(invite_link_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_importChatInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ImportChatInviteQuery: " << to_string(ptr);
-
-    auto dialog_ids = UpdatesManager::get_chat_dialog_ids(ptr.get());
-    if (dialog_ids.size() != 1u) {
-      LOG(ERROR) << "Receive wrong result for ImportChatInviteQuery: " << to_string(ptr);
-      return on_error(Status::Error(500, "Internal Server Error: failed to join chat via invite link"));
-    }
-    auto dialog_id = dialog_ids[0];
-
-    td_->dialog_invite_link_manager_->invalidate_invite_link_info(invite_link_);
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr), PromiseCreator::lambda([promise = std::move(promise_), dialog_id](Unit) mutable {
-          promise.set_value(std::move(dialog_id));
-        }));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_invite_link_manager_->invalidate_invite_link_info(invite_link_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ExportChatInviteQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatInviteLink>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ExportChatInviteQuery(Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &title, int32 expire_date, int32 usage_limit, bool creates_join_request,
-            StarSubscriptionPricing subscription_pricing, bool is_permanent) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = 0;
-    if (expire_date > 0) {
-      flags |= telegram_api::messages_exportChatInvite::EXPIRE_DATE_MASK;
-    }
-    if (usage_limit > 0) {
-      flags |= telegram_api::messages_exportChatInvite::USAGE_LIMIT_MASK;
-    }
-    if (creates_join_request) {
-      flags |= telegram_api::messages_exportChatInvite::REQUEST_NEEDED_MASK;
-    }
-    if (is_permanent) {
-      flags |= telegram_api::messages_exportChatInvite::LEGACY_REVOKE_PERMANENT_MASK;
-    }
-    if (!title.empty()) {
-      flags |= telegram_api::messages_exportChatInvite::TITLE_MASK;
-    }
-    if (!subscription_pricing.is_empty()) {
-      flags |= telegram_api::messages_exportChatInvite::SUBSCRIPTION_PRICING_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_exportChatInvite(
-        flags, false /*ignored*/, false /*ignored*/, std::move(input_peer), expire_date, usage_limit, title,
-        subscription_pricing.get_input_stars_subscription_pricing())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_exportChatInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ExportChatInviteQuery: " << to_string(ptr);
-
-    DialogInviteLink invite_link(std::move(ptr), false, false, "ExportChatInviteQuery");
-    if (!invite_link.is_valid()) {
-      return on_error(Status::Error(500, "Receive invalid invite link"));
-    }
-    if (invite_link.get_creator_user_id() != td_->user_manager_->get_my_id()) {
-      return on_error(Status::Error(500, "Receive invalid invite link creator"));
-    }
-    if (invite_link.is_permanent()) {
-      td_->dialog_invite_link_manager_->on_get_permanent_dialog_invite_link(dialog_id_, invite_link);
-    }
-    promise_.set_value(invite_link.get_chat_invite_link_object(td_->user_manager_.get()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ExportChatInviteQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditChatInviteLinkQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatInviteLink>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit EditChatInviteLinkQuery(Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &invite_link, const string &title, int32 expire_date, int32 usage_limit,
-            bool creates_join_request, bool is_subscription) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = telegram_api::messages_editExportedChatInvite::TITLE_MASK;
-    if (!is_subscription) {
-      flags |= telegram_api::messages_editExportedChatInvite::EXPIRE_DATE_MASK |
-               telegram_api::messages_editExportedChatInvite::USAGE_LIMIT_MASK |
-               telegram_api::messages_editExportedChatInvite::REQUEST_NEEDED_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_editExportedChatInvite(flags, false /*ignored*/, std::move(input_peer), invite_link,
-                                                      expire_date, usage_limit, creates_join_request, title)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editExportedChatInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditChatInviteLinkQuery: " << to_string(result);
-
-    if (result->get_id() != telegram_api::messages_exportedChatInvite::ID) {
-      return on_error(Status::Error(500, "Receive unexpected response from server"));
-    }
-
-    auto invite = move_tl_object_as<telegram_api::messages_exportedChatInvite>(result);
-
-    td_->user_manager_->on_get_users(std::move(invite->users_), "EditChatInviteLinkQuery");
-
-    DialogInviteLink invite_link(std::move(invite->invite_), false, false, "EditChatInviteLinkQuery");
-    if (!invite_link.is_valid()) {
-      return on_error(Status::Error(500, "Receive invalid invite link"));
-    }
-    promise_.set_value(invite_link.get_chat_invite_link_object(td_->user_manager_.get()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditChatInviteLinkQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetExportedChatInviteQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatInviteLink>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetExportedChatInviteQuery(Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &invite_link) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getExportedChatInvite(std::move(input_peer), invite_link)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getExportedChatInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (result_ptr.ok()->get_id() != telegram_api::messages_exportedChatInvite::ID) {
-      LOG(ERROR) << "Receive wrong result for GetExportedChatInviteQuery: " << to_string(result_ptr.ok());
-      return on_error(Status::Error(500, "Receive unexpected response"));
-    }
-
-    auto result = move_tl_object_as<telegram_api::messages_exportedChatInvite>(result_ptr.ok_ref());
-    LOG(INFO) << "Receive result for GetExportedChatInviteQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetExportedChatInviteQuery");
-
-    DialogInviteLink invite_link(std::move(result->invite_), false, false, "GetExportedChatInviteQuery");
-    if (!invite_link.is_valid()) {
-      LOG(ERROR) << "Receive invalid invite link in " << dialog_id_;
-      return on_error(Status::Error(500, "Receive invalid invite link"));
-    }
-    promise_.set_value(invite_link.get_chat_invite_link_object(td_->user_manager_.get()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetExportedChatInviteQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetExportedChatInvitesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatInviteLinks>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetExportedChatInvitesQuery(Promise<td_api::object_ptr<td_api::chatInviteLinks>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, tl_object_ptr<telegram_api::InputUser> &&input_user, bool is_revoked, int32 offset_date,
-            const string &offset_invite_link, int32 limit) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = 0;
-    if (!offset_invite_link.empty() || offset_date != 0) {
-      flags |= telegram_api::messages_getExportedChatInvites::OFFSET_DATE_MASK;
-      flags |= telegram_api::messages_getExportedChatInvites::OFFSET_LINK_MASK;
-    }
-    if (is_revoked) {
-      flags |= telegram_api::messages_getExportedChatInvites::REVOKED_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getExportedChatInvites(flags, false /*ignored*/, std::move(input_peer),
-                                                      std::move(input_user), offset_date, offset_invite_link, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getExportedChatInvites>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetExportedChatInvitesQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetExportedChatInvitesQuery");
-
-    int32 total_count = result->count_;
-    if (total_count < static_cast<int32>(result->invites_.size())) {
-      LOG(ERROR) << "Receive wrong total count of invite links " << total_count << " in " << dialog_id_;
-      total_count = static_cast<int32>(result->invites_.size());
-    }
-    vector<td_api::object_ptr<td_api::chatInviteLink>> invite_links;
-    for (auto &invite : result->invites_) {
-      DialogInviteLink invite_link(std::move(invite), false, false, "GetExportedChatInvitesQuery");
-      if (!invite_link.is_valid()) {
-        LOG(ERROR) << "Receive invalid invite link in " << dialog_id_;
-        total_count--;
-        continue;
-      }
-      invite_links.push_back(invite_link.get_chat_invite_link_object(td_->user_manager_.get()));
-    }
-    promise_.set_value(td_api::make_object<td_api::chatInviteLinks>(total_count, std::move(invite_links)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetExportedChatInvitesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChatAdminWithInvitesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatInviteLinkCounts>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetChatAdminWithInvitesQuery(Promise<td_api::object_ptr<td_api::chatInviteLinkCounts>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_getAdminsWithInvites(std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getAdminsWithInvites>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChatAdminWithInvitesQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetChatAdminWithInvitesQuery");
-
-    vector<td_api::object_ptr<td_api::chatInviteLinkCount>> invite_link_counts;
-    for (auto &admin : result->admins_) {
-      UserId user_id(admin->admin_id_);
-      if (!user_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid invite link creator " << user_id << " in " << dialog_id_;
-        continue;
-      }
-      invite_link_counts.push_back(td_api::make_object<td_api::chatInviteLinkCount>(
-          td_->user_manager_->get_user_id_object(user_id, "chatInviteLinkCount"), admin->invites_count_,
-          admin->revoked_invites_count_));
-    }
-    promise_.set_value(td_api::make_object<td_api::chatInviteLinkCounts>(std::move(invite_link_counts)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetChatAdminWithInvitesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChatInviteImportersQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatInviteLinkMembers>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetChatInviteImportersQuery(Promise<td_api::object_ptr<td_api::chatInviteLinkMembers>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &invite_link, bool subscription_expired, int32 offset_date,
-            UserId offset_user_id, int32 limit) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    auto r_input_user = td_->user_manager_->get_input_user(offset_user_id);
-    if (r_input_user.is_error()) {
-      r_input_user = make_tl_object<telegram_api::inputUserEmpty>();
-    }
-
-    int32 flags = telegram_api::messages_getChatInviteImporters::LINK_MASK;
-    if (subscription_expired) {
-      flags |= telegram_api::messages_getChatInviteImporters::SUBSCRIPTION_EXPIRED_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_getChatInviteImporters(
-        flags, false /*ignored*/, false /*ignored*/, std::move(input_peer), invite_link, string(), offset_date,
-        r_input_user.move_as_ok(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getChatInviteImporters>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChatInviteImportersQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetChatInviteImportersQuery");
-
-    int32 total_count = result->count_;
-    if (total_count < static_cast<int32>(result->importers_.size())) {
-      LOG(ERROR) << "Receive wrong total count of invite link users " << total_count << " in " << dialog_id_;
-      total_count = static_cast<int32>(result->importers_.size());
-    }
-    vector<td_api::object_ptr<td_api::chatInviteLinkMember>> invite_link_members;
-    for (auto &importer : result->importers_) {
-      UserId user_id(importer->user_id_);
-      UserId approver_user_id(importer->approved_by_);
-      if (!user_id.is_valid() || (!approver_user_id.is_valid() && approver_user_id != UserId()) ||
-          importer->requested_) {
-        LOG(ERROR) << "Receive invalid invite link importer: " << to_string(importer);
-        total_count--;
-        continue;
-      }
-      invite_link_members.push_back(td_api::make_object<td_api::chatInviteLinkMember>(
-          td_->user_manager_->get_user_id_object(user_id, "chatInviteLinkMember"), importer->date_,
-          importer->via_chatlist_, td_->user_manager_->get_user_id_object(approver_user_id, "chatInviteLinkMember")));
-    }
-    promise_.set_value(td_api::make_object<td_api::chatInviteLinkMembers>(total_count, std::move(invite_link_members)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetChatInviteImportersQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RevokeChatInviteLinkQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatInviteLinks>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit RevokeChatInviteLinkQuery(Promise<td_api::object_ptr<td_api::chatInviteLinks>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &invite_link) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = telegram_api::messages_editExportedChatInvite::REVOKED_MASK;
-    send_query(G()->net_query_creator().create(telegram_api::messages_editExportedChatInvite(
-        flags, false /*ignored*/, std::move(input_peer), invite_link, 0, 0, false, string())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editExportedChatInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for RevokeChatInviteLinkQuery: " << to_string(result);
-
-    vector<td_api::object_ptr<td_api::chatInviteLink>> links;
-    switch (result->get_id()) {
-      case telegram_api::messages_exportedChatInvite::ID: {
-        auto invite = move_tl_object_as<telegram_api::messages_exportedChatInvite>(result);
-
-        td_->user_manager_->on_get_users(std::move(invite->users_), "RevokeChatInviteLinkQuery");
-
-        DialogInviteLink invite_link(std::move(invite->invite_), false, false, "RevokeChatInviteLinkQuery");
-        if (!invite_link.is_valid()) {
-          return on_error(Status::Error(500, "Receive invalid invite link"));
-        }
-        links.push_back(invite_link.get_chat_invite_link_object(td_->user_manager_.get()));
-        break;
-      }
-      case telegram_api::messages_exportedChatInviteReplaced::ID: {
-        auto invite = move_tl_object_as<telegram_api::messages_exportedChatInviteReplaced>(result);
-
-        td_->user_manager_->on_get_users(std::move(invite->users_), "RevokeChatInviteLinkQuery replaced");
-
-        DialogInviteLink invite_link(std::move(invite->invite_), false, false, "RevokeChatInviteLinkQuery replaced");
-        DialogInviteLink new_invite_link(std::move(invite->new_invite_), false, false,
-                                         "RevokeChatInviteLinkQuery new replaced");
-        if (!invite_link.is_valid() || !new_invite_link.is_valid()) {
-          return on_error(Status::Error(500, "Receive invalid invite link"));
-        }
-        if (new_invite_link.get_creator_user_id() == td_->user_manager_->get_my_id() &&
-            new_invite_link.is_permanent()) {
-          td_->dialog_invite_link_manager_->on_get_permanent_dialog_invite_link(dialog_id_, new_invite_link);
-        }
-        links.push_back(invite_link.get_chat_invite_link_object(td_->user_manager_.get()));
-        links.push_back(new_invite_link.get_chat_invite_link_object(td_->user_manager_.get()));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-    auto total_count = static_cast<int32>(links.size());
-    promise_.set_value(td_api::make_object<td_api::chatInviteLinks>(total_count, std::move(links)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "RevokeChatInviteLinkQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteExportedChatInviteQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit DeleteExportedChatInviteQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &invite_link) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_deleteExportedChatInvite(std::move(input_peer), invite_link)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteExportedChatInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "DeleteExportedChatInviteQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteRevokedExportedChatInvitesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit DeleteRevokedExportedChatInvitesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, tl_object_ptr<telegram_api::InputUser> &&input_user) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_deleteRevokedExportedChatInvites(std::move(input_peer), std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteRevokedExportedChatInvites>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "DeleteRevokedExportedChatInvitesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-DialogInviteLinkManager::DialogInviteLinkManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  invite_link_info_expire_timeout_.set_callback(on_invite_link_info_expire_timeout_callback);
-  invite_link_info_expire_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-void DialogInviteLinkManager::tear_down() {
-  parent_.reset();
-}
-
-DialogInviteLinkManager::~DialogInviteLinkManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), invite_link_infos_,
-                                              dialog_access_by_invite_link_);
-}
-
-void DialogInviteLinkManager::on_invite_link_info_expire_timeout_callback(void *dialog_invite_link_manager_ptr,
-                                                                          int64 dialog_id_long) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto dialog_invite_link_manager = static_cast<DialogInviteLinkManager *>(dialog_invite_link_manager_ptr);
-  send_closure_later(dialog_invite_link_manager->actor_id(dialog_invite_link_manager),
-                     &DialogInviteLinkManager::on_invite_link_info_expire_timeout, DialogId(dialog_id_long));
-}
-
-void DialogInviteLinkManager::on_invite_link_info_expire_timeout(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto access_it = dialog_access_by_invite_link_.find(dialog_id);
-  if (access_it == dialog_access_by_invite_link_.end()) {
-    return;
-  }
-  auto expires_in = access_it->second.accessible_before_date - G()->unix_time() - 1;
-  if (expires_in >= 3) {
-    invite_link_info_expire_timeout_.set_timeout_in(dialog_id.get(), expires_in);
-    return;
-  }
-
-  remove_dialog_access_by_invite_link(dialog_id);
-}
-
-void DialogInviteLinkManager::check_dialog_invite_link(const string &invite_link, bool force, Promise<Unit> &&promise) {
-  auto it = invite_link_infos_.find(invite_link);
-  if (it != invite_link_infos_.end()) {
-    auto dialog_id = it->second->dialog_id;
-    if (!force && dialog_id.get_type() == DialogType::Chat &&
-        !td_->chat_manager_->get_chat_is_active(dialog_id.get_chat_id())) {
-      invite_link_infos_.erase(it);
-    } else {
-      return promise.set_value(Unit());
-    }
-  }
-
-  if (!DialogInviteLink::is_valid_invite_link(invite_link)) {
-    return promise.set_error(Status::Error(400, "Wrong invite link"));
-  }
-
-  CHECK(!invite_link.empty());
-  td_->create_handler<CheckChatInviteQuery>(std::move(promise))->send(invite_link);
-}
-
-void DialogInviteLinkManager::import_dialog_invite_link(const string &invite_link, Promise<DialogId> &&promise) {
-  if (!DialogInviteLink::is_valid_invite_link(invite_link)) {
-    return promise.set_error(Status::Error(400, "Wrong invite link"));
-  }
-
-  td_->create_handler<ImportChatInviteQuery>(std::move(promise))->send(invite_link);
-}
-
-void DialogInviteLinkManager::on_get_dialog_invite_link_info(
-    const string &invite_link, telegram_api::object_ptr<telegram_api::ChatInvite> &&chat_invite_ptr,
-    Promise<Unit> &&promise) {
-  CHECK(chat_invite_ptr != nullptr);
-  CHECK(!invite_link.empty());
-  switch (chat_invite_ptr->get_id()) {
-    case telegram_api::chatInviteAlready::ID:
-    case telegram_api::chatInvitePeek::ID: {
-      telegram_api::object_ptr<telegram_api::Chat> chat = nullptr;
-      int32 accessible_before_date = 0;
-      if (chat_invite_ptr->get_id() == telegram_api::chatInviteAlready::ID) {
-        auto chat_invite_already = telegram_api::move_object_as<telegram_api::chatInviteAlready>(chat_invite_ptr);
-        chat = std::move(chat_invite_already->chat_);
-      } else {
-        auto chat_invite_peek = telegram_api::move_object_as<telegram_api::chatInvitePeek>(chat_invite_ptr);
-        chat = std::move(chat_invite_peek->chat_);
-        accessible_before_date = chat_invite_peek->expires_;
-      }
-      auto chat_id = ChatManager::get_chat_id(chat);
-      if (chat_id != ChatId() && !chat_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << chat_id;
-        chat_id = ChatId();
-      }
-      auto channel_id = ChatManager::get_channel_id(chat);
-      if (channel_id != ChannelId() && !channel_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << channel_id;
-        channel_id = ChannelId();
-      }
-      if (accessible_before_date != 0 && (!channel_id.is_valid() || accessible_before_date < 0)) {
-        LOG(ERROR) << "Receive expires = " << accessible_before_date << " for invite link " << invite_link << " to "
-                   << to_string(chat);
-        accessible_before_date = 0;
-      }
-      td_->chat_manager_->on_get_chat(std::move(chat), "chatInviteAlready");
-
-      CHECK(chat_id == ChatId() || channel_id == ChannelId());
-
-      // the access is already expired, reget the info
-      if (accessible_before_date != 0 && accessible_before_date <= G()->unix_time() + 1) {
-        td_->create_handler<CheckChatInviteQuery>(std::move(promise))->send(invite_link);
-        return;
-      }
-
-      DialogId dialog_id = chat_id.is_valid() ? DialogId(chat_id) : DialogId(channel_id);
-      auto &invite_link_info = invite_link_infos_[invite_link];
-      if (invite_link_info == nullptr) {
-        invite_link_info = make_unique<InviteLinkInfo>();
-      }
-      invite_link_info->dialog_id = dialog_id;
-      if (accessible_before_date != 0 && dialog_id.is_valid()) {
-        add_dialog_access_by_invite_link(dialog_id, invite_link, accessible_before_date);
-      }
-      break;
-    }
-    case telegram_api::chatInvite::ID: {
-      auto chat_invite = telegram_api::move_object_as<telegram_api::chatInvite>(chat_invite_ptr);
-      auto &invite_link_info = invite_link_infos_[invite_link];
-      if (invite_link_info == nullptr) {
-        invite_link_info = make_unique<InviteLinkInfo>();
-      }
-      invite_link_info->dialog_id = DialogId();
-      invite_link_info->title = chat_invite->title_;
-      invite_link_info->photo = get_photo(td_, std::move(chat_invite->photo_), DialogId());
-      invite_link_info->accent_color_id = AccentColorId(chat_invite->color_);
-      invite_link_info->description = std::move(chat_invite->about_);
-      invite_link_info->participant_count = chat_invite->participants_count_;
-      invite_link_info->participant_user_ids =
-          td_->user_manager_->get_user_ids(std::move(chat_invite->participants_), "chatInvite");
-      invite_link_info->subscription_pricing = StarSubscriptionPricing(std::move(chat_invite->subscription_pricing_));
-      invite_link_info->subscription_form_id = chat_invite->subscription_form_id_;
-      invite_link_info->can_refulfill_subscription = chat_invite->can_refulfill_subscription_;
-      invite_link_info->creates_join_request = std::move(chat_invite->request_needed_);
-      invite_link_info->is_chat = !chat_invite->channel_;
-      invite_link_info->is_channel = chat_invite->channel_;
-
-      bool is_broadcast = chat_invite->broadcast_;
-      bool is_public = chat_invite->public_;
-      bool is_megagroup = chat_invite->megagroup_;
-
-      if (!invite_link_info->is_channel) {
-        if (is_broadcast || is_public || is_megagroup) {
-          LOG(ERROR) << "Receive wrong chat invite: " << to_string(chat_invite);
-          is_public = is_megagroup = false;
-        }
-      } else {
-        LOG_IF(ERROR, is_broadcast == is_megagroup) << "Receive wrong chat invite: " << to_string(chat_invite);
-      }
-
-      invite_link_info->is_public = is_public;
-      invite_link_info->is_megagroup = is_megagroup;
-      invite_link_info->is_verified = chat_invite->verified_;
-      invite_link_info->is_scam = chat_invite->scam_;
-      invite_link_info->is_fake = chat_invite->fake_;
-      invite_link_info->bot_verification_icon = chat_invite->bot_verification_ == nullptr
-                                                    ? CustomEmojiId()
-                                                    : CustomEmojiId(chat_invite->bot_verification_->icon_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  promise.set_value(Unit());
-}
-
-void DialogInviteLinkManager::invalidate_invite_link_info(const string &invite_link) {
-  LOG(INFO) << "Invalidate info about invite link " << invite_link;
-  invite_link_infos_.erase(invite_link);
-}
-
-td_api::object_ptr<td_api::chatInviteLinkInfo> DialogInviteLinkManager::get_chat_invite_link_info_object(
-    const string &invite_link) {
-  auto it = invite_link_infos_.find(invite_link);
-  if (it == invite_link_infos_.end()) {
-    return nullptr;
-  }
-
-  const auto *invite_link_info = it->second.get();
-  CHECK(invite_link_info != nullptr);
-
-  DialogId dialog_id = invite_link_info->dialog_id;
-  bool is_chat = false;
-  bool is_megagroup = false;
-  string title;
-  const DialogPhoto *photo = nullptr;
-  DialogPhoto invite_link_photo;
-  int32 accent_color_id_object;
-  string description;
-  int32 participant_count = 0;
-  vector<int64> member_user_ids;
-  td_api::object_ptr<td_api::chatInviteLinkSubscriptionInfo> subscription_info;
-  bool creates_join_request = false;
-  bool is_public = false;
-  bool is_member = false;
-  td_api::object_ptr<td_api::verificationStatus> verification_status;
-
-  if (dialog_id.is_valid()) {
-    switch (dialog_id.get_type()) {
-      case DialogType::Chat: {
-        auto chat_id = dialog_id.get_chat_id();
-        is_chat = true;
-
-        title = td_->chat_manager_->get_chat_title(chat_id);
-        photo = td_->chat_manager_->get_chat_dialog_photo(chat_id);
-        participant_count = td_->chat_manager_->get_chat_participant_count(chat_id);
-        is_member = td_->chat_manager_->get_chat_status(chat_id).is_member();
-        accent_color_id_object = td_->chat_manager_->get_chat_accent_color_id_object(chat_id);
-        break;
-      }
-      case DialogType::Channel: {
-        auto channel_id = dialog_id.get_channel_id();
-        title = td_->chat_manager_->get_channel_title(channel_id);
-        photo = td_->chat_manager_->get_channel_dialog_photo(channel_id);
-        is_public = td_->chat_manager_->is_channel_public(channel_id);
-        is_megagroup = td_->chat_manager_->is_megagroup_channel(channel_id);
-        participant_count = td_->chat_manager_->get_channel_participant_count(channel_id);
-        is_member = td_->chat_manager_->get_channel_status(channel_id).is_member();
-        verification_status = td_->chat_manager_->get_channel_verification_status_object(channel_id);
-        accent_color_id_object = td_->chat_manager_->get_channel_accent_color_id_object(channel_id);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-    description = td_->dialog_manager_->get_dialog_about(dialog_id);
-  } else {
-    is_chat = invite_link_info->is_chat;
-    is_megagroup = invite_link_info->is_megagroup;
-    title = invite_link_info->title;
-    invite_link_photo = as_fake_dialog_photo(invite_link_info->photo, dialog_id, false);
-    photo = &invite_link_photo;
-    accent_color_id_object = td_->theme_manager_->get_accent_color_id_object(invite_link_info->accent_color_id);
-    description = invite_link_info->description;
-    participant_count = invite_link_info->participant_count;
-    member_user_ids = td_->user_manager_->get_user_ids_object(invite_link_info->participant_user_ids,
-                                                              "get_chat_invite_link_info_object");
-    auto subscription_pricing = invite_link_info->subscription_pricing.get_star_subscription_pricing_object();
-    if (subscription_pricing != nullptr) {
-      subscription_info = td_api::make_object<td_api::chatInviteLinkSubscriptionInfo>(
-          std::move(subscription_pricing), invite_link_info->can_refulfill_subscription,
-          invite_link_info->subscription_form_id);
-    }
-    creates_join_request = invite_link_info->creates_join_request;
-    is_public = invite_link_info->is_public;
-    verification_status =
-        get_verification_status_object(td_, invite_link_info->is_verified, invite_link_info->is_scam,
-                                       invite_link_info->is_fake, invite_link_info->bot_verification_icon);
-  }
-
-  td_api::object_ptr<td_api::InviteLinkChatType> chat_type;
-  if (is_chat) {
-    chat_type = td_api::make_object<td_api::inviteLinkChatTypeBasicGroup>();
-  } else if (is_megagroup) {
-    chat_type = td_api::make_object<td_api::inviteLinkChatTypeSupergroup>();
-  } else {
-    chat_type = td_api::make_object<td_api::inviteLinkChatTypeChannel>();
-  }
-
-  if (dialog_id.is_valid()) {
-    td_->dialog_manager_->force_create_dialog(dialog_id, "get_chat_invite_link_info_object");
-  }
-  int32 accessible_for = 0;
-  if (dialog_id.is_valid() && !is_member) {
-    accessible_for = get_dialog_accessible_by_invite_link_before_date(dialog_id);
-  }
-
-  return td_api::make_object<td_api::chatInviteLinkInfo>(
-      td_->dialog_manager_->get_chat_id_object(dialog_id, "chatInviteLinkInfo"), accessible_for, std::move(chat_type),
-      title, get_chat_photo_info_object(td_->file_manager_.get(), photo), accent_color_id_object, description,
-      participant_count, std::move(member_user_ids), std::move(subscription_info), creates_join_request, is_public,
-      std::move(verification_status));
-}
-
-void DialogInviteLinkManager::add_dialog_access_by_invite_link(DialogId dialog_id, const string &invite_link,
-                                                               int32 accessible_before_date) {
-  CHECK(dialog_id.is_valid());
-  CHECK(!invite_link.empty());
-  auto &access = dialog_access_by_invite_link_[dialog_id];
-  access.invite_links.insert(invite_link);
-  if (access.accessible_before_date < accessible_before_date) {
-    access.accessible_before_date = accessible_before_date;
-
-    auto expires_in = accessible_before_date - G()->unix_time() - 1;
-    invite_link_info_expire_timeout_.set_timeout_in(dialog_id.get(), expires_in);
-  }
-}
-
-bool DialogInviteLinkManager::have_dialog_access_by_invite_link(DialogId dialog_id) const {
-  return dialog_access_by_invite_link_.count(dialog_id) != 0;
-}
-
-int32 DialogInviteLinkManager::get_dialog_accessible_by_invite_link_before_date(DialogId dialog_id) const {
-  auto it = dialog_access_by_invite_link_.find(dialog_id);
-  if (it != dialog_access_by_invite_link_.end()) {
-    return td::max(1, it->second.accessible_before_date - G()->unix_time() - 1);
-  }
-  return 0;
-}
-
-void DialogInviteLinkManager::remove_dialog_access_by_invite_link(DialogId dialog_id) {
-  auto access_it = dialog_access_by_invite_link_.find(dialog_id);
-  if (access_it == dialog_access_by_invite_link_.end()) {
-    return;
-  }
-
-  for (auto &invite_link : access_it->second.invite_links) {
-    invalidate_invite_link_info(invite_link);
-  }
-  dialog_access_by_invite_link_.erase(access_it);
-
-  invite_link_info_expire_timeout_.cancel_timeout(dialog_id.get());
-}
-
-Status DialogInviteLinkManager::can_manage_dialog_invite_links(DialogId dialog_id, bool creator_only) {
-  TRY_STATUS(td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write,
-                                                       "can_manage_dialog_invite_links"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return Status::Error(400, "Can't invite members to a private chat");
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      if (!td_->chat_manager_->get_chat_is_active(chat_id)) {
-        return Status::Error(400, "Chat is deactivated");
-      }
-      auto status = td_->chat_manager_->get_chat_status(chat_id);
-      bool have_rights = creator_only ? status.is_creator() : status.can_manage_invite_links();
-      if (!have_rights) {
-        return Status::Error(400, "Not enough rights to manage chat invite link");
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      auto status = td_->chat_manager_->get_channel_status(channel_id);
-      bool have_rights = creator_only ? status.is_creator() : status.can_manage_invite_links();
-      if (!have_rights) {
-        return Status::Error(400, "Not enough rights to manage chat invite link");
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      return Status::Error(400, "Can't invite members to a secret chat");
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  return Status::OK();
-}
-
-void DialogInviteLinkManager::on_get_permanent_dialog_invite_link(DialogId dialog_id,
-                                                                  const DialogInviteLink &invite_link) {
-  switch (dialog_id.get_type()) {
-    case DialogType::Chat:
-      return td_->chat_manager_->on_update_chat_permanent_invite_link(dialog_id.get_chat_id(), invite_link);
-    case DialogType::Channel:
-      return td_->chat_manager_->on_update_channel_permanent_invite_link(dialog_id.get_channel_id(), invite_link);
-    case DialogType::User:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogInviteLinkManager::export_dialog_invite_link(DialogId dialog_id, string title, int32 expire_date,
-                                                        int32 usage_limit, bool creates_join_request,
-                                                        StarSubscriptionPricing subscription_pricing,
-                                                        bool is_subscription, bool is_permanent,
-                                                        Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise) {
-  if (is_subscription) {
-    if (subscription_pricing.is_empty()) {
-      return promise.set_error(Status::Error(400, "Invalid subscription pricing specified"));
-    }
-    CHECK(expire_date == 0 && usage_limit == 0 && !creates_join_request);
-  } else {
-    CHECK(subscription_pricing.is_empty());
-  }
-  if (creates_join_request && usage_limit > 0) {
-    return promise.set_error(
-        Status::Error(400, "Member limit can't be specified for links requiring administrator approval"));
-  }
-
-  td_->user_manager_->get_me(PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_id, title = clean_name(std::move(title), MAX_INVITE_LINK_TITLE_LENGTH),
-       expire_date, usage_limit, creates_join_request, subscription_pricing, is_permanent,
-       promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &DialogInviteLinkManager::export_dialog_invite_link_impl, dialog_id, std::move(title),
-                       expire_date, usage_limit, creates_join_request, subscription_pricing, is_permanent,
-                       std::move(promise));
-        }
-      }));
-}
-
-void DialogInviteLinkManager::export_dialog_invite_link_impl(
-    DialogId dialog_id, string title, int32 expire_date, int32 usage_limit, bool creates_join_request,
-    StarSubscriptionPricing subscription_pricing, bool is_permanent,
-    Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id));
-
-  td_->create_handler<ExportChatInviteQuery>(std::move(promise))
-      ->send(dialog_id, title, expire_date, usage_limit, creates_join_request, subscription_pricing, is_permanent);
-}
-
-void DialogInviteLinkManager::edit_dialog_invite_link(DialogId dialog_id, const string &invite_link, string title,
-                                                      int32 expire_date, int32 usage_limit, bool creates_join_request,
-                                                      bool is_subscription,
-                                                      Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id));
-  if (creates_join_request && usage_limit > 0) {
-    return promise.set_error(
-        Status::Error(400, "Member limit can't be specified for links requiring administrator approval"));
-  }
-
-  if (invite_link.empty()) {
-    return promise.set_error(Status::Error(400, "Invite link must be non-empty"));
-  }
-
-  auto new_title = clean_name(std::move(title), MAX_INVITE_LINK_TITLE_LENGTH);
-  td_->create_handler<EditChatInviteLinkQuery>(std::move(promise))
-      ->send(dialog_id, invite_link, new_title, expire_date, usage_limit, creates_join_request, is_subscription);
-}
-
-void DialogInviteLinkManager::get_dialog_invite_link(DialogId dialog_id, const string &invite_link,
-                                                     Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id));
-
-  if (invite_link.empty()) {
-    return promise.set_error(Status::Error(400, "Invite link must be non-empty"));
-  }
-
-  td_->create_handler<GetExportedChatInviteQuery>(std::move(promise))->send(dialog_id, invite_link);
-}
-
-void DialogInviteLinkManager::get_dialog_invite_link_counts(
-    DialogId dialog_id, Promise<td_api::object_ptr<td_api::chatInviteLinkCounts>> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id, true));
-
-  td_->create_handler<GetChatAdminWithInvitesQuery>(std::move(promise))->send(dialog_id);
-}
-
-void DialogInviteLinkManager::get_dialog_invite_links(DialogId dialog_id, UserId creator_user_id, bool is_revoked,
-                                                      int32 offset_date, const string &offset_invite_link, int32 limit,
-                                                      Promise<td_api::object_ptr<td_api::chatInviteLinks>> &&promise) {
-  TRY_STATUS_PROMISE(promise,
-                     can_manage_dialog_invite_links(dialog_id, creator_user_id != td_->user_manager_->get_my_id()));
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(creator_user_id));
-
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-
-  td_->create_handler<GetExportedChatInvitesQuery>(std::move(promise))
-      ->send(dialog_id, std::move(input_user), is_revoked, offset_date, offset_invite_link, limit);
-}
-
-void DialogInviteLinkManager::get_dialog_invite_link_users(
-    DialogId dialog_id, const string &invite_link, bool subscription_expired,
-    td_api::object_ptr<td_api::chatInviteLinkMember> offset_member, int32 limit,
-    Promise<td_api::object_ptr<td_api::chatInviteLinkMembers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id));
-
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-
-  if (invite_link.empty()) {
-    return promise.set_error(Status::Error(400, "Invite link must be non-empty"));
-  }
-
-  UserId offset_user_id;
-  int32 offset_date = 0;
-  if (offset_member != nullptr) {
-    offset_user_id = UserId(offset_member->user_id_);
-    offset_date = offset_member->joined_chat_date_;
-  }
-
-  td_->create_handler<GetChatInviteImportersQuery>(std::move(promise))
-      ->send(dialog_id, invite_link, subscription_expired, offset_date, offset_user_id, limit);
-}
-
-void DialogInviteLinkManager::revoke_dialog_invite_link(
-    DialogId dialog_id, const string &invite_link, Promise<td_api::object_ptr<td_api::chatInviteLinks>> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id));
-
-  if (invite_link.empty()) {
-    return promise.set_error(Status::Error(400, "Invite link must be non-empty"));
-  }
-
-  td_->create_handler<RevokeChatInviteLinkQuery>(std::move(promise))->send(dialog_id, invite_link);
-}
-
-void DialogInviteLinkManager::delete_revoked_dialog_invite_link(DialogId dialog_id, const string &invite_link,
-                                                                Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id));
-
-  if (invite_link.empty()) {
-    return promise.set_error(Status::Error(400, "Invite link must be non-empty"));
-  }
-
-  td_->create_handler<DeleteExportedChatInviteQuery>(std::move(promise))->send(dialog_id, invite_link);
-}
-
-void DialogInviteLinkManager::delete_all_revoked_dialog_invite_links(DialogId dialog_id, UserId creator_user_id,
-                                                                     Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise,
-                     can_manage_dialog_invite_links(dialog_id, creator_user_id != td_->user_manager_->get_my_id()));
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(creator_user_id));
-
-  td_->create_handler<DeleteRevokedExportedChatInvitesQuery>(std::move(promise))
-      ->send(dialog_id, std::move(input_user));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogInviteLinkManager.h b/third-party/td/td/td/telegram/DialogInviteLinkManager.h
deleted file mode 100644
index cfddc57175..0000000000
--- a/third-party/td/td/td/telegram/DialogInviteLinkManager.h
+++ /dev/null
@@ -1,146 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/StarSubscriptionPricing.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class DialogInviteLink;
-class Td;
-
-class DialogInviteLinkManager final : public Actor {
- public:
-  DialogInviteLinkManager(Td *td, ActorShared<> parent);
-  DialogInviteLinkManager(const DialogInviteLinkManager &) = delete;
-  DialogInviteLinkManager &operator=(const DialogInviteLinkManager &) = delete;
-  DialogInviteLinkManager(DialogInviteLinkManager &&) = delete;
-  DialogInviteLinkManager &operator=(DialogInviteLinkManager &&) = delete;
-  ~DialogInviteLinkManager() final;
-
-  void check_dialog_invite_link(const string &invite_link, bool force, Promise<Unit> &&promise);
-
-  void import_dialog_invite_link(const string &invite_link, Promise<DialogId> &&promise);
-
-  void on_get_dialog_invite_link_info(const string &invite_link,
-                                      telegram_api::object_ptr<telegram_api::ChatInvite> &&chat_invite_ptr,
-                                      Promise<Unit> &&promise);
-
-  void invalidate_invite_link_info(const string &invite_link);
-
-  td_api::object_ptr<td_api::chatInviteLinkInfo> get_chat_invite_link_info_object(const string &invite_link);
-
-  void on_get_permanent_dialog_invite_link(DialogId dialog_id, const DialogInviteLink &invite_link);
-
-  bool have_dialog_access_by_invite_link(DialogId dialog_id) const;
-
-  void remove_dialog_access_by_invite_link(DialogId dialog_id);
-
-  void export_dialog_invite_link(DialogId dialog_id, string title, int32 expire_date, int32 usage_limit,
-                                 bool creates_join_request, StarSubscriptionPricing subscription_pricing,
-                                 bool is_subscription, bool is_permanent,
-                                 Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise);
-
-  void edit_dialog_invite_link(DialogId dialog_id, const string &link, string title, int32 expire_date,
-                               int32 usage_limit, bool creates_join_request, bool is_subscription,
-                               Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise);
-
-  void get_dialog_invite_link(DialogId dialog_id, const string &invite_link,
-                              Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise);
-
-  void get_dialog_invite_link_counts(DialogId dialog_id,
-                                     Promise<td_api::object_ptr<td_api::chatInviteLinkCounts>> &&promise);
-
-  void get_dialog_invite_links(DialogId dialog_id, UserId creator_user_id, bool is_revoked, int32 offset_date,
-                               const string &offset_invite_link, int32 limit,
-                               Promise<td_api::object_ptr<td_api::chatInviteLinks>> &&promise);
-
-  void get_dialog_invite_link_users(DialogId dialog_id, const string &invite_link, bool subscription_expired,
-                                    td_api::object_ptr<td_api::chatInviteLinkMember> offset_member, int32 limit,
-                                    Promise<td_api::object_ptr<td_api::chatInviteLinkMembers>> &&promise);
-
-  void revoke_dialog_invite_link(DialogId dialog_id, const string &link,
-                                 Promise<td_api::object_ptr<td_api::chatInviteLinks>> &&promise);
-
-  void delete_revoked_dialog_invite_link(DialogId dialog_id, const string &invite_link, Promise<Unit> &&promise);
-
-  void delete_all_revoked_dialog_invite_links(DialogId dialog_id, UserId creator_user_id, Promise<Unit> &&promise);
-
- private:
-  static constexpr size_t MAX_INVITE_LINK_TITLE_LENGTH = 32;  // server side limit
-
-  void tear_down() final;
-
-  static void on_invite_link_info_expire_timeout_callback(void *dialog_invite_link_manager_ptr, int64 dialog_id_long);
-
-  void on_invite_link_info_expire_timeout(DialogId dialog_id);
-
-  void add_dialog_access_by_invite_link(DialogId dialog_id, const string &invite_link, int32 accessible_before_date);
-
-  int32 get_dialog_accessible_by_invite_link_before_date(DialogId dialog_id) const;
-
-  void export_dialog_invite_link_impl(DialogId dialog_id, string title, int32 expire_date, int32 usage_limit,
-                                      bool creates_join_request, StarSubscriptionPricing subscription_pricing,
-                                      bool is_permanent, Promise<td_api::object_ptr<td_api::chatInviteLink>> &&promise);
-
-  Status can_manage_dialog_invite_links(DialogId dialog_id, bool creator_only = false);
-
-  struct InviteLinkInfo {
-    // known dialog
-    DialogId dialog_id;
-
-    // unknown dialog
-    string title;
-    Photo photo;
-    AccentColorId accent_color_id;
-    int32 participant_count = 0;
-    vector<UserId> participant_user_ids;
-    string description;
-    StarSubscriptionPricing subscription_pricing;
-    int64 subscription_form_id;
-    CustomEmojiId bot_verification_icon;
-    bool creates_join_request = false;
-    bool can_refulfill_subscription = false;
-    bool is_chat = false;
-    bool is_channel = false;
-    bool is_public = false;
-    bool is_megagroup = false;
-    bool is_verified = false;
-    bool is_scam = false;
-    bool is_fake = false;
-  };
-  FlatHashMap<string, unique_ptr<InviteLinkInfo>> invite_link_infos_;
-
-  struct DialogAccessByInviteLink {
-    FlatHashSet<string> invite_links;
-    int32 accessible_before_date = 0;
-  };
-  FlatHashMap<DialogId, DialogAccessByInviteLink, DialogIdHash> dialog_access_by_invite_link_;
-
-  MultiTimeout invite_link_info_expire_timeout_{"InviteLinkInfoExpireTimeout"};
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogListId.h b/third-party/td/td/td/telegram/DialogListId.h
deleted file mode 100644
index 9123f7e5b9..0000000000
--- a/third-party/td/td/td/telegram/DialogListId.h
+++ /dev/null
@@ -1,140 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogFilterId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <limits>
-#include <type_traits>
-
-namespace td {
-
-class DialogListId {
-  int64 id = 0;
-
-  static constexpr int64 FILTER_ID_SHIFT = static_cast<int64>(1) << 32;
-
- public:
-  DialogListId() = default;
-
-  explicit DialogListId(int64 dialog_list_id) : id(dialog_list_id) {
-    if (is_folder() && get_folder_id() != FolderId::archive()) {
-      id = FolderId::main().get();
-    } else if (is_filter()) {
-      CHECK(get_filter_id().is_valid());
-    }
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  DialogListId(T dialog_list_id) = delete;
-
-  explicit DialogListId(DialogFilterId dialog_filter_id) : id(dialog_filter_id.get() + FILTER_ID_SHIFT) {
-  }
-  explicit DialogListId(FolderId folder_id) : id(folder_id.get()) {
-  }
-
-  explicit DialogListId(const td_api::object_ptr<td_api::ChatList> &chat_list) {
-    if (chat_list == nullptr) {
-      CHECK(id == FolderId::main().get());
-      return;
-    }
-    switch (chat_list->get_id()) {
-      case td_api::chatListArchive::ID:
-        id = FolderId::archive().get();
-        break;
-      case td_api::chatListMain::ID:
-        CHECK(id == FolderId::main().get());
-        break;
-      case td_api::chatListFolder::ID: {
-        DialogFilterId filter_id(static_cast<const td_api::chatListFolder *>(chat_list.get())->chat_folder_id_);
-        if (filter_id.is_valid()) {
-          *this = DialogListId(filter_id);
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-
-  td_api::object_ptr<td_api::ChatList> get_chat_list_object() const {
-    if (is_folder()) {
-      auto folder_id = get_folder_id();
-      if (folder_id == FolderId::archive()) {
-        return td_api::make_object<td_api::chatListArchive>();
-      }
-      return td_api::make_object<td_api::chatListMain>();
-    }
-    if (is_filter()) {
-      return td_api::make_object<td_api::chatListFolder>(get_filter_id().get());
-    }
-    UNREACHABLE();
-    return nullptr;
-  }
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const DialogListId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const DialogListId &other) const {
-    return id != other.id;
-  }
-
-  bool is_folder() const {
-    return std::numeric_limits<int32>::min() <= id && id <= std::numeric_limits<int32>::max();
-  }
-
-  bool is_filter() const {
-    return std::numeric_limits<int32>::min() + FILTER_ID_SHIFT <= id &&
-           id <= std::numeric_limits<int32>::max() + FILTER_ID_SHIFT;
-  }
-
-  FolderId get_folder_id() const {
-    CHECK(is_folder());
-    return FolderId(static_cast<int32>(id));
-  }
-
-  DialogFilterId get_filter_id() const {
-    CHECK(is_filter());
-    return DialogFilterId(static_cast<int32>(id - FILTER_ID_SHIFT));
-  }
-};
-
-struct DialogListIdHash {
-  uint32 operator()(DialogListId dialog_list_id) const {
-    return Hash<int64>()(dialog_list_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, DialogListId dialog_list_id) {
-  if (dialog_list_id.is_folder()) {
-    auto folder_id = dialog_list_id.get_folder_id();
-    if (folder_id == FolderId::archive()) {
-      return string_builder << "Archive chat list";
-    }
-    if (folder_id == FolderId::main()) {
-      return string_builder << "Main chat list";
-    }
-    return string_builder << "chat list " << folder_id;
-  }
-  if (dialog_list_id.is_filter()) {
-    return string_builder << "chat list " << dialog_list_id.get_filter_id();
-  }
-  return string_builder << "unknown chat list " << dialog_list_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogLocation.cpp b/third-party/td/td/td/telegram/DialogLocation.cpp
deleted file mode 100644
index 0b431216b1..0000000000
--- a/third-party/td/td/td/telegram/DialogLocation.cpp
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogLocation.h"
-
-#include "td/telegram/misc.h"
-
-namespace td {
-
-DialogLocation::DialogLocation(Td *td, telegram_api::object_ptr<telegram_api::ChannelLocation> &&channel_location_ptr) {
-  if (channel_location_ptr != nullptr && channel_location_ptr->get_id() == telegram_api::channelLocation::ID) {
-    auto channel_location = static_cast<telegram_api::channelLocation *>(channel_location_ptr.get());
-    location_ = Location(td, channel_location->geo_point_);
-    address_ = std::move(channel_location->address_);
-  }
-}
-
-DialogLocation::DialogLocation(Td *td, telegram_api::object_ptr<telegram_api::businessLocation> &&business_location) {
-  if (business_location != nullptr) {
-    location_ = Location(td, business_location->geo_point_);
-    address_ = std::move(business_location->address_);
-  }
-}
-
-DialogLocation::DialogLocation(td_api::object_ptr<td_api::chatLocation> &&chat_location) {
-  if (chat_location != nullptr) {
-    location_ = Location(chat_location->location_);
-    address_ = std::move(chat_location->address_);
-    if (!clean_input_string(address_)) {
-      address_.clear();
-    }
-  }
-}
-
-DialogLocation::DialogLocation(td_api::object_ptr<td_api::businessLocation> &&business_location) {
-  if (business_location != nullptr) {
-    location_ = Location(business_location->location_);
-    address_ = std::move(business_location->address_);
-    if (!clean_input_string(address_)) {
-      address_.clear();
-    }
-  }
-}
-
-bool DialogLocation::empty() const {
-  return location_.empty();
-}
-
-td_api::object_ptr<td_api::chatLocation> DialogLocation::get_chat_location_object() const {
-  if (empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::chatLocation>(location_.get_location_object(), address_);
-}
-
-td_api::object_ptr<td_api::businessLocation> DialogLocation::get_business_location_object() const {
-  if (empty() && address_.empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::businessLocation>(location_.get_location_object(), address_);
-}
-
-telegram_api::object_ptr<telegram_api::InputGeoPoint> DialogLocation::get_input_geo_point() const {
-  return location_.get_input_geo_point();
-}
-
-const string &DialogLocation::get_address() const {
-  return address_;
-}
-
-bool operator==(const DialogLocation &lhs, const DialogLocation &rhs) {
-  return lhs.location_ == rhs.location_ && lhs.address_ == rhs.address_;
-}
-
-bool operator!=(const DialogLocation &lhs, const DialogLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogLocation &location) {
-  return string_builder << "DialogLocation[location = " << location.location_ << ", address = " << location.address_
-                        << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogLocation.h b/third-party/td/td/td/telegram/DialogLocation.h
deleted file mode 100644
index bc733d660c..0000000000
--- a/third-party/td/td/td/telegram/DialogLocation.h
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Location.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Td;
-
-class DialogLocation {
-  Location location_;
-  string address_;
-
-  friend bool operator==(const DialogLocation &lhs, const DialogLocation &rhs);
-  friend bool operator!=(const DialogLocation &lhs, const DialogLocation &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogLocation &location);
-
- public:
-  DialogLocation() = default;
-
-  DialogLocation(Td *td, telegram_api::object_ptr<telegram_api::ChannelLocation> &&channel_location_ptr);
-
-  DialogLocation(Td *td, telegram_api::object_ptr<telegram_api::businessLocation> &&business_location);
-
-  explicit DialogLocation(td_api::object_ptr<td_api::chatLocation> &&chat_location);
-
-  explicit DialogLocation(td_api::object_ptr<td_api::businessLocation> &&business_location);
-
-  bool empty() const;
-
-  td_api::object_ptr<td_api::chatLocation> get_chat_location_object() const;
-
-  td_api::object_ptr<td_api::businessLocation> get_business_location_object() const;
-
-  telegram_api::object_ptr<telegram_api::InputGeoPoint> get_input_geo_point() const;
-
-  const string &get_address() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    store(location_, storer);
-    store(address_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    parse(location_, parser);
-    parse(address_, parser);
-  }
-};
-
-bool operator==(const DialogLocation &lhs, const DialogLocation &rhs);
-bool operator!=(const DialogLocation &lhs, const DialogLocation &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogLocation &location);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogManager.cpp b/third-party/td/td/td/telegram/DialogManager.cpp
deleted file mode 100644
index fb5b8337ec..0000000000
--- a/third-party/td/td/td/telegram/DialogManager.cpp
+++ /dev/null
@@ -1,3651 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BlockListId.h"
-#include "td/telegram/BotCommand.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ChatReactions.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/ReportReason.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/SecretChatsManager.h"
-#include "td/telegram/StickerPhotoSize.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Usernames.h"
-#include "td/telegram/Version.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/Hints.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/utf8.h"
-
-#include <type_traits>
-
-namespace td {
-
-class CheckUsernameQuery final : public Td::ResultHandler {
-  Promise<bool> promise_;
-
- public:
-  explicit CheckUsernameQuery(Promise<bool> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &username) {
-    send_query(G()->net_query_creator().create(telegram_api::account_checkUsername(username), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_checkUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CheckChannelUsernameQuery final : public Td::ResultHandler {
-  Promise<bool> promise_;
-  ChannelId channel_id_;
-  string username_;
-
- public:
-  explicit CheckChannelUsernameQuery(Promise<bool> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const string &username) {
-    channel_id_ = channel_id;
-    telegram_api::object_ptr<telegram_api::InputChannel> input_channel;
-    if (channel_id.is_valid()) {
-      input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    } else {
-      input_channel = telegram_api::make_object<telegram_api::inputChannelEmpty>();
-    }
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::channels_checkUsername(std::move(input_channel), username),
-                                               {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_checkUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    if (channel_id_.is_valid()) {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "CheckChannelUsernameQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResolveUsernameQuery final : public Td::ResultHandler {
-  Promise<DialogId> promise_;
-
- public:
-  explicit ResolveUsernameQuery(Promise<DialogId> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &username) {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_resolveUsername(0, username, string())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_resolveUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ResolveUsernameQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "ResolveUsernameQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "ResolveUsernameQuery");
-
-    promise_.set_value(DialogId(ptr->peer_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SearchPublicDialogsQuery final : public Td::ResultHandler {
-  string query_;
-
- public:
-  void send(const string &query) {
-    query_ = query;
-    send_query(
-        G()->net_query_creator().create(telegram_api::contacts_search(query, 20 /* mostly ignored server-side */)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_search>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto dialogs = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SearchPublicDialogsQuery: " << to_string(dialogs);
-    td_->user_manager_->on_get_users(std::move(dialogs->users_), "SearchPublicDialogsQuery");
-    td_->chat_manager_->on_get_chats(std::move(dialogs->chats_), "SearchPublicDialogsQuery");
-    td_->dialog_manager_->on_get_public_dialogs_search_result(query_, std::move(dialogs->my_results_),
-                                                              std::move(dialogs->results_));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      if (status.message() == "QUERY_TOO_SHORT") {
-        return td_->dialog_manager_->on_get_public_dialogs_search_result(query_, {}, {});
-      }
-      LOG(ERROR) << "Receive error for SearchPublicDialogsQuery: " << status;
-    }
-    td_->dialog_manager_->on_failed_public_dialogs_search(query_, std::move(status));
-  }
-};
-
-class MigrateChatQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit MigrateChatQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChatId chat_id) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_migrateChat(chat_id.get()), {{chat_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_migrateChat>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for MigrateChatQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditDialogTitleQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit EditDialogTitleQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &title) {
-    dialog_id_ = dialog_id;
-    switch (dialog_id.get_type()) {
-      case DialogType::Chat:
-        send_query(G()->net_query_creator().create(
-            telegram_api::messages_editChatTitle(dialog_id.get_chat_id().get(), title), {{dialog_id_}}));
-        break;
-      case DialogType::Channel: {
-        auto channel_id = dialog_id.get_channel_id();
-        auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-        CHECK(input_channel != nullptr);
-        send_query(G()->net_query_creator().create(telegram_api::channels_editTitle(std::move(input_channel), title),
-                                                   {{dialog_id_}}));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_editChatTitle::ReturnType,
-                               telegram_api::channels_editTitle::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_editChatTitle>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditDialogTitleQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditDialogTitleQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditDialogPhotoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  FileUploadId file_upload_id_;
-  bool was_uploaded_ = false;
-  string file_reference_;
-  DialogId dialog_id_;
-
- public:
-  explicit EditDialogPhotoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, FileUploadId file_upload_id,
-            telegram_api::object_ptr<telegram_api::InputChatPhoto> &&input_chat_photo) {
-    CHECK(input_chat_photo != nullptr);
-    file_upload_id_ = file_upload_id;
-    was_uploaded_ = FileManager::extract_was_uploaded(input_chat_photo);
-    file_reference_ = FileManager::extract_file_reference(input_chat_photo);
-    dialog_id_ = dialog_id;
-
-    switch (dialog_id.get_type()) {
-      case DialogType::Chat:
-        send_query(G()->net_query_creator().create(
-            telegram_api::messages_editChatPhoto(dialog_id.get_chat_id().get(), std::move(input_chat_photo)),
-            {{dialog_id_}}));
-        break;
-      case DialogType::Channel: {
-        auto channel_id = dialog_id.get_channel_id();
-        auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-        CHECK(input_channel != nullptr);
-        send_query(G()->net_query_creator().create(
-            telegram_api::channels_editPhoto(std::move(input_channel), std::move(input_chat_photo)), {{dialog_id_}}));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_editChatPhoto::ReturnType,
-                               telegram_api::channels_editPhoto::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_editChatPhoto>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditDialogPhotoQuery: " << to_string(ptr);
-
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-
-    if (file_upload_id_.is_valid() && was_uploaded_) {
-      td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-    }
-  }
-
-  void on_error(Status status) final {
-    if (file_upload_id_.is_valid() && was_uploaded_) {
-      td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-    }
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      if (file_upload_id_.is_valid() && !was_uploaded_) {
-        VLOG(file_references) << "Receive " << status << " for " << file_upload_id_;
-        td_->file_manager_->delete_file_reference(file_upload_id_.get_file_id(), file_reference_);
-        td_->dialog_manager_->upload_dialog_photo(dialog_id_, file_upload_id_, false, 0.0, false, std::move(promise_),
-                                                  {-1});
-        return;
-      } else {
-        LOG(ERROR) << "Receive file reference error, but file is " << file_upload_id_
-                   << ", was_uploaded = " << was_uploaded_;
-      }
-    }
-
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditDialogPhotoQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditChatDefaultBannedRightsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit EditChatDefaultBannedRightsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, RestrictedRights permissions) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_editChatDefaultBannedRights(std::move(input_peer), permissions.get_chat_banned_rights()),
-        {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editChatDefaultBannedRights>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditChatDefaultBannedRightsQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditChatDefaultBannedRightsQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleNoForwardsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ToggleNoForwardsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool has_protected_content) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_toggleNoForwards(std::move(input_peer), has_protected_content), {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_toggleNoForwards>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleNoForwardsQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      promise_.set_value(Unit());
-      return;
-    } else {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleNoForwardsQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetDialogUnreadMarksQuery final : public Td::ResultHandler {
- public:
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getDialogUnreadMarks()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getDialogUnreadMarks>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto results = result_ptr.move_as_ok();
-    for (auto &result : results) {
-      td_->messages_manager_->on_update_dialog_is_marked_as_unread(DialogId(result), true);
-    }
-
-    G()->td_db()->get_binlog_pmc()->set("fetched_marks_as_unread", "1");
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for GetDialogUnreadMarksQuery: " << status;
-    }
-    status.ignore();
-  }
-};
-
-class ReportPeerQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::ReportChatResult>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReportPeerQuery(Promise<td_api::object_ptr<td_api::ReportChatResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &option_id, const vector<MessageId> &message_ids, const string &text) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_report(std::move(input_peer), MessageId::get_server_message_ids(message_ids),
-                                      BufferSlice(option_id), text),
-        {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_report>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ReportPeerQuery: " << to_string(ptr);
-    switch (ptr->get_id()) {
-      case telegram_api::reportResultReported::ID:
-        return promise_.set_value(td_api::make_object<td_api::reportChatResultOk>());
-      case telegram_api::reportResultChooseOption::ID: {
-        auto options = telegram_api::move_object_as<telegram_api::reportResultChooseOption>(ptr);
-        if (options->options_.empty()) {
-          return promise_.set_value(td_api::make_object<td_api::reportChatResultOk>());
-        }
-        vector<td_api::object_ptr<td_api::reportOption>> report_options;
-        for (auto &option : options->options_) {
-          report_options.push_back(
-              td_api::make_object<td_api::reportOption>(option->option_.as_slice().str(), option->text_));
-        }
-        return promise_.set_value(
-            td_api::make_object<td_api::reportChatResultOptionRequired>(options->title_, std::move(report_options)));
-      }
-      case telegram_api::reportResultAddComment::ID: {
-        auto option = telegram_api::move_object_as<telegram_api::reportResultAddComment>(ptr);
-        return promise_.set_value(td_api::make_object<td_api::reportChatResultTextRequired>(
-            option->option_.as_slice().str(), option->optional_));
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "MESSAGE_ID_REQUIRED") {
-      return promise_.set_value(td_api::make_object<td_api::reportChatResultMessagesRequired>());
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReportPeerQuery");
-    td_->messages_manager_->reget_dialog_action_bar(dialog_id_, "ReportPeerQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReportProfilePhotoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  FileId file_id_;
-  string file_reference_;
-  ReportReason report_reason_;
-
- public:
-  explicit ReportProfilePhotoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, FileId file_id, tl_object_ptr<telegram_api::InputPhoto> &&input_photo,
-            ReportReason &&report_reason) {
-    dialog_id_ = dialog_id;
-    file_id_ = file_id;
-    file_reference_ = FileManager::extract_file_reference(input_photo);
-    report_reason_ = std::move(report_reason);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_reportProfilePhoto(std::move(input_peer), std::move(input_photo),
-                                                 report_reason_.get_input_report_reason(),
-                                                 report_reason_.get_message()),
-        {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_reportProfilePhoto>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Receive false as result"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for report chat photo: " << status;
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      VLOG(file_references) << "Receive " << status << " for " << file_id_;
-      td_->file_manager_->delete_file_reference(file_id_, file_reference_);
-      td_->file_reference_manager_->repair_file_reference(
-          file_id_,
-          PromiseCreator::lambda([dialog_id = dialog_id_, file_id = file_id_, report_reason = std::move(report_reason_),
-                                  promise = std::move(promise_)](Result<Unit> result) mutable {
-            if (result.is_error()) {
-              LOG(INFO) << "Reported photo " << file_id << " is likely to be deleted";
-              return promise.set_value(Unit());
-            }
-            send_closure(G()->dialog_manager(), &DialogManager::report_dialog_photo, dialog_id, file_id,
-                         std::move(report_reason), std::move(promise));
-          }));
-      return;
-    }
-
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReportProfilePhotoQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPeerSettingsQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-
- public:
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getPeerSettings(std::move(input_peer)), {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPeerSettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetPeerSettingsQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetPeerSettingsQuery");
-    td_->messages_manager_->on_get_peer_settings(dialog_id_, std::move(ptr->settings_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for get peer settings: " << status;
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetPeerSettingsQuery");
-  }
-};
-
-class UpdatePeerSettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit UpdatePeerSettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool is_spam_dialog) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_value(Unit());
-    }
-
-    if (is_spam_dialog) {
-      send_query(
-          G()->net_query_creator().create(telegram_api::messages_reportSpam(std::move(input_peer)), {{dialog_id_}}));
-    } else {
-      send_query(G()->net_query_creator().create(telegram_api::messages_hidePeerSettingsBar(std::move(input_peer)),
-                                                 {{dialog_id_}}));
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_reportSpam::ReturnType,
-                               telegram_api::messages_hidePeerSettingsBar::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_reportSpam>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->messages_manager_->on_get_peer_settings(dialog_id_, telegram_api::make_object<telegram_api::peerSettings>(),
-                                                 true);
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for update peer settings: " << status;
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "UpdatePeerSettingsQuery");
-    td_->messages_manager_->reget_dialog_action_bar(dialog_id_, "UpdatePeerSettingsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReportEncryptedSpamQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReportEncryptedSpamQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_encrypted_chat(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_reportEncryptedSpam(std::move(input_peer)),
-                                               {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_reportEncryptedSpam>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->messages_manager_->on_get_peer_settings(dialog_id_, telegram_api::make_object<telegram_api::peerSettings>(),
-                                                 true);
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for report encrypted spam: " << status;
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReportEncryptedSpamQuery");
-    td_->messages_manager_->reget_dialog_action_bar(
-        DialogId(td_->user_manager_->get_secret_chat_user_id(dialog_id_.get_secret_chat_id())),
-        "ReportEncryptedSpamQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBlockedDialogsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::messageSenders>> promise_;
-  int32 offset_;
-  int32 limit_;
-
- public:
-  explicit GetBlockedDialogsQuery(Promise<td_api::object_ptr<td_api::messageSenders>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(BlockListId block_list_id, int32 offset, int32 limit) {
-    offset_ = offset;
-    limit_ = limit;
-    send_query(G()->net_query_creator().create(
-        telegram_api::contacts_getBlocked(0, block_list_id == BlockListId::stories(), offset, limit), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_getBlocked>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetBlockedDialogsQuery: " << to_string(ptr);
-
-    switch (ptr->get_id()) {
-      case telegram_api::contacts_blocked::ID: {
-        auto blocked_peers = move_tl_object_as<telegram_api::contacts_blocked>(ptr);
-
-        td_->user_manager_->on_get_users(std::move(blocked_peers->users_), "GetBlockedDialogsQuery");
-        td_->chat_manager_->on_get_chats(std::move(blocked_peers->chats_), "GetBlockedDialogsQuery");
-        td_->dialog_manager_->on_get_blocked_dialogs(offset_, limit_,
-                                                     narrow_cast<int32>(blocked_peers->blocked_.size()),
-                                                     std::move(blocked_peers->blocked_), std::move(promise_));
-        break;
-      }
-      case telegram_api::contacts_blockedSlice::ID: {
-        auto blocked_peers = move_tl_object_as<telegram_api::contacts_blockedSlice>(ptr);
-
-        td_->user_manager_->on_get_users(std::move(blocked_peers->users_), "GetBlockedDialogsQuery slice");
-        td_->chat_manager_->on_get_chats(std::move(blocked_peers->chats_), "GetBlockedDialogsQuery slice");
-        td_->dialog_manager_->on_get_blocked_dialogs(offset_, limit_, blocked_peers->count_,
-                                                     std::move(blocked_peers->blocked_), std::move(promise_));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderPinnedDialogsQuery final : public Td::ResultHandler {
-  FolderId folder_id_;
-  Promise<Unit> promise_;
-
- public:
-  explicit ReorderPinnedDialogsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(FolderId folder_id, const vector<DialogId> &dialog_ids) {
-    folder_id_ = folder_id;
-    int32 flags = telegram_api::messages_reorderPinnedDialogs::FORCE_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_reorderPinnedDialogs(
-            flags, true /*ignored*/, folder_id.get(),
-            td_->dialog_manager_->get_input_dialog_peers(dialog_ids, AccessRights::Read)),
-        {{folder_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_reorderPinnedDialogs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Result is false"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for ReorderPinnedDialogsQuery: " << status;
-    }
-    td_->messages_manager_->on_update_pinned_dialogs(folder_id_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetChatAvailableReactionsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SetChatAvailableReactionsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const ChatReactions &available_reactions) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    int32 flags = telegram_api::messages_setChatAvailableReactions::PAID_ENABLED_MASK;
-    if (available_reactions.reactions_limit_ != 0) {
-      flags |= telegram_api::messages_setChatAvailableReactions::REACTIONS_LIMIT_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_setChatAvailableReactions(
-            flags, std::move(input_peer), available_reactions.get_input_chat_reactions(),
-            available_reactions.reactions_limit_, available_reactions.paid_reactions_available_),
-        {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setChatAvailableReactions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SetChatAvailableReactionsQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SetChatAvailableReactionsQuery");
-      td_->dialog_manager_->reload_dialog_info_full(dialog_id_, "SetChatAvailableReactionsQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SaveDefaultSendAsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SaveDefaultSendAsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, DialogId send_as_dialog_id) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    auto send_as_input_peer = td_->dialog_manager_->get_input_peer(send_as_dialog_id, AccessRights::Read);
-    CHECK(send_as_input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_saveDefaultSendAs(std::move(input_peer), std::move(send_as_input_peer)),
-        {{dialog_id, MessageContentType::Photo}, {dialog_id, MessageContentType::Text}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_saveDefaultSendAs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto success = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SaveDefaultSendAsQuery: " << success;
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    // td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SaveDefaultSendAsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditPeerFoldersQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit EditPeerFoldersQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, FolderId folder_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    vector<telegram_api::object_ptr<telegram_api::inputFolderPeer>> input_folder_peers;
-    input_folder_peers.push_back(
-        telegram_api::make_object<telegram_api::inputFolderPeer>(std::move(input_peer), folder_id.get()));
-    send_query(G()->net_query_creator().create(telegram_api::folders_editPeerFolders(std::move(input_folder_peers)),
-                                               {{dialog_id_}, {folder_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::folders_editPeerFolders>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditPeerFoldersQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditPeerFoldersQuery")) {
-      LOG(INFO) << "Receive error for EditPeerFoldersQuery: " << status;
-    }
-
-    // trying to repair folder ID for this dialog
-    td_->dialog_manager_->get_dialog_info_full(dialog_id_, Auto(), "EditPeerFoldersQuery");
-
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetHistoryTtlQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SetHistoryTtlQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int32 period) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_setHistoryTTL(std::move(input_peer), period),
-                                               {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setHistoryTTL>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SetHistoryTtlQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SetHistoryTtlQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetChatThemeQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SetChatThemeQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &theme_name) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::messages_setChatTheme(std::move(input_peer), theme_name),
-                                               {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setChatTheme>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SetChatThemeQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "CHAT_NOT_MODIFIED") {
-      if (!td_->auth_manager_->is_bot()) {
-        promise_.set_value(Unit());
-        return;
-      }
-    } else {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SetChatThemeQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleDialogIsBlockedQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ToggleDialogIsBlockedQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool is_blocked, bool is_blocked_for_stories) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Know);
-    CHECK(input_peer != nullptr && input_peer->get_id() != telegram_api::inputPeerEmpty::ID);
-
-    vector<ChainId> chain_ids{{dialog_id, MessageContentType::Photo}, {dialog_id, MessageContentType::Text}, {"me"}};
-    auto query =
-        is_blocked || is_blocked_for_stories
-            ? G()->net_query_creator().create(
-                  telegram_api::contacts_block(0, is_blocked_for_stories, std::move(input_peer)), std::move(chain_ids))
-            : G()->net_query_creator().create(
-                  telegram_api::contacts_unblock(0, is_blocked_for_stories, std::move(input_peer)),
-                  std::move(chain_ids));
-    send_query(std::move(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(
-        std::is_same<telegram_api::contacts_block::ReturnType, telegram_api::contacts_unblock::ReturnType>::value, "");
-    auto result_ptr = fetch_result<telegram_api::contacts_block>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG_IF(WARNING, !result) << "Block/Unblock " << dialog_id_ << " has failed";
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleDialogIsBlockedQuery")) {
-      LOG(ERROR) << "Receive error for ToggleDialogIsBlockedQuery: " << status;
-    }
-    if (!G()->close_flag()) {
-      td_->dialog_manager_->get_dialog_info_full(dialog_id_, Auto(), "ToggleDialogIsBlockedQuery");
-      td_->messages_manager_->reget_dialog_action_bar(dialog_id_, "ToggleDialogIsBlockedQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleDialogUnreadMarkQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  bool is_marked_as_unread_;
-
- public:
-  explicit ToggleDialogUnreadMarkQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool is_marked_as_unread) {
-    dialog_id_ = dialog_id;
-    is_marked_as_unread_ = is_marked_as_unread;
-
-    auto input_peer = td_->dialog_manager_->get_input_dialog_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-    if (is_marked_as_unread) {
-      flags |= telegram_api::messages_markDialogUnread::UNREAD_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_markDialogUnread(flags, false /*ignored*/, std::move(input_peer)), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_markDialogUnread>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Toggle dialog mark failed"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleDialogUnreadMarkQuery")) {
-      LOG(ERROR) << "Receive error for ToggleDialogUnreadMarkQuery: " << status;
-    }
-    if (!G()->close_flag()) {
-      td_->messages_manager_->on_update_dialog_is_marked_as_unread(dialog_id_, !is_marked_as_unread_);
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleDialogPinQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  bool is_pinned_;
-
- public:
-  explicit ToggleDialogPinQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool is_pinned) {
-    dialog_id_ = dialog_id;
-    is_pinned_ = is_pinned;
-
-    auto input_peer = td_->dialog_manager_->get_input_dialog_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-    if (is_pinned) {
-      flags |= telegram_api::messages_toggleDialogPin::PINNED_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_toggleDialogPin(flags, false /*ignored*/, std::move(input_peer)), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_toggleDialogPin>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Toggle dialog pin failed"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleDialogPinQuery")) {
-      LOG(ERROR) << "Receive error for ToggleDialogPinQuery: " << status;
-    }
-    td_->messages_manager_->on_update_pinned_dialogs(FolderId::main());
-    td_->messages_manager_->on_update_pinned_dialogs(FolderId::archive());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleDialogTranslationsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  bool is_translatable_;
-
- public:
-  explicit ToggleDialogTranslationsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool is_translatable) {
-    dialog_id_ = dialog_id;
-    is_translatable_ = is_translatable;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-    if (!is_translatable) {
-      flags |= telegram_api::messages_togglePeerTranslations::DISABLED_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_togglePeerTranslations(flags, false /*ignored*/, std::move(input_peer)), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_togglePeerTranslations>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Toggle dialog translations failed"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleDialogTranslationsQuery")) {
-      LOG(ERROR) << "Receive error for ToggleDialogTranslationsQuery: " << status;
-    }
-    if (!G()->close_flag()) {
-      td_->messages_manager_->on_update_dialog_is_translatable(dialog_id_, !is_translatable_);
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleViewForumAsMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  bool view_as_messages_;
-
- public:
-  explicit ToggleViewForumAsMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool view_as_messages) {
-    dialog_id_ = dialog_id;
-    view_as_messages_ = view_as_messages;
-
-    CHECK(dialog_id.get_type() == DialogType::Channel);
-    auto input_channel = td_->chat_manager_->get_input_channel(dialog_id.get_channel_id());
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_toggleViewForumAsMessages(std::move(input_channel), view_as_messages), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_toggleViewForumAsMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleViewForumAsMessagesQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleViewForumAsMessagesQuery")) {
-      LOG(ERROR) << "Receive error for ToggleViewForumAsMessagesQuery: " << status;
-    }
-    if (!G()->close_flag()) {
-      td_->messages_manager_->on_update_dialog_view_as_messages(dialog_id_, !view_as_messages_);
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DialogManager::UploadDialogPhotoCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->dialog_manager(), &DialogManager::on_upload_dialog_photo, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->dialog_manager(), &DialogManager::on_upload_dialog_photo_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-DialogManager::DialogManager(Td *td, ActorShared<> parent)
-    : recently_found_dialogs_{td, "recently_found", MAX_RECENT_DIALOGS}
-    , recently_opened_dialogs_{td, "recently_opened", MAX_RECENT_DIALOGS}
-    , td_(td)
-    , parent_(std::move(parent)) {
-  upload_dialog_photo_callback_ = std::make_shared<UploadDialogPhotoCallback>();
-}
-
-DialogManager::~DialogManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), resolved_usernames_,
-                                              inaccessible_resolved_usernames_, found_public_dialogs_,
-                                              found_on_server_dialogs_);
-}
-
-void DialogManager::hangup() {
-  fail_promise_map(search_public_dialogs_queries_, Global::request_aborted_error());
-
-  stop();
-}
-
-void DialogManager::tear_down() {
-  parent_.reset();
-}
-
-DialogId DialogManager::get_my_dialog_id() const {
-  return DialogId(td_->user_manager_->get_my_id());
-}
-
-InputDialogId DialogManager::get_input_dialog_id(DialogId dialog_id) const {
-  auto input_peer = get_input_peer(dialog_id, AccessRights::Read);
-  if (input_peer == nullptr || input_peer->get_id() == telegram_api::inputPeerSelf::ID ||
-      input_peer->get_id() == telegram_api::inputPeerEmpty::ID) {
-    return InputDialogId(dialog_id);
-  } else {
-    return InputDialogId(input_peer);
-  }
-}
-
-Status DialogManager::check_dialog_access(DialogId dialog_id, bool allow_secret_chats, AccessRights access_rights,
-                                          const char *source) const {
-  if (!have_dialog_force(dialog_id, source)) {
-    if (!dialog_id.is_valid()) {
-      return Status::Error(400, "Invalid chat identifier specified");
-    }
-    return Status::Error(400, "Chat not found");
-  }
-  return check_dialog_access_in_memory(dialog_id, allow_secret_chats, access_rights);
-}
-
-Status DialogManager::check_dialog_access_in_memory(DialogId dialog_id, bool allow_secret_chats,
-                                                    AccessRights access_rights) const {
-  if (!have_input_peer(dialog_id, allow_secret_chats, access_rights)) {
-    if (dialog_id.get_type() == DialogType::SecretChat && !allow_secret_chats) {
-      return Status::Error(400, "Not supported in secret chats");
-    }
-    if (access_rights == AccessRights::Write || access_rights == AccessRights::Edit) {
-      return Status::Error(400, "Have no write access to the chat");
-    }
-    return Status::Error(400, "Can't access the chat");
-  }
-  return Status::OK();
-}
-
-tl_object_ptr<telegram_api::InputPeer> DialogManager::get_input_peer(DialogId dialog_id,
-                                                                     AccessRights access_rights) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_input_peer_user(dialog_id.get_user_id(), access_rights);
-    case DialogType::Chat:
-      return td_->chat_manager_->get_input_peer_chat(dialog_id.get_chat_id(), access_rights);
-    case DialogType::Channel:
-      return td_->chat_manager_->get_input_peer_channel(dialog_id.get_channel_id(), access_rights);
-    case DialogType::SecretChat:
-      return nullptr;
-    case DialogType::None:
-      return make_tl_object<telegram_api::inputPeerEmpty>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-tl_object_ptr<telegram_api::InputPeer> DialogManager::get_input_peer_force(DialogId dialog_id) {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      UserId user_id = dialog_id.get_user_id();
-      return make_tl_object<telegram_api::inputPeerUser>(user_id.get(), 0);
-    }
-    case DialogType::Chat: {
-      ChatId chat_id = dialog_id.get_chat_id();
-      return make_tl_object<telegram_api::inputPeerChat>(chat_id.get());
-    }
-    case DialogType::Channel: {
-      ChannelId channel_id = dialog_id.get_channel_id();
-      return make_tl_object<telegram_api::inputPeerChannel>(channel_id.get(), 0);
-    }
-    case DialogType::SecretChat:
-    case DialogType::None:
-      return make_tl_object<telegram_api::inputPeerEmpty>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-vector<tl_object_ptr<telegram_api::InputPeer>> DialogManager::get_input_peers(const vector<DialogId> &dialog_ids,
-                                                                              AccessRights access_rights) const {
-  vector<tl_object_ptr<telegram_api::InputPeer>> input_peers;
-  input_peers.reserve(dialog_ids.size());
-  for (auto &dialog_id : dialog_ids) {
-    auto input_peer = get_input_peer(dialog_id, access_rights);
-    if (input_peer == nullptr) {
-      LOG(ERROR) << "Have no access to " << dialog_id;
-      continue;
-    }
-    input_peers.push_back(std::move(input_peer));
-  }
-  return input_peers;
-}
-
-tl_object_ptr<telegram_api::InputDialogPeer> DialogManager::get_input_dialog_peer(DialogId dialog_id,
-                                                                                  AccessRights access_rights) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-    case DialogType::None:
-      return make_tl_object<telegram_api::inputDialogPeer>(get_input_peer(dialog_id, access_rights));
-    case DialogType::SecretChat:
-      return nullptr;
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-vector<tl_object_ptr<telegram_api::InputDialogPeer>> DialogManager::get_input_dialog_peers(
-    const vector<DialogId> &dialog_ids, AccessRights access_rights) const {
-  vector<tl_object_ptr<telegram_api::InputDialogPeer>> input_dialog_peers;
-  input_dialog_peers.reserve(dialog_ids.size());
-  for (auto &dialog_id : dialog_ids) {
-    auto input_dialog_peer = get_input_dialog_peer(dialog_id, access_rights);
-    if (input_dialog_peer == nullptr) {
-      LOG(ERROR) << "Have no access to " << dialog_id;
-      continue;
-    }
-    input_dialog_peers.push_back(std::move(input_dialog_peer));
-  }
-  return input_dialog_peers;
-}
-
-tl_object_ptr<telegram_api::inputEncryptedChat> DialogManager::get_input_encrypted_chat(
-    DialogId dialog_id, AccessRights access_rights) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::SecretChat: {
-      SecretChatId secret_chat_id = dialog_id.get_secret_chat_id();
-      return td_->user_manager_->get_input_encrypted_chat(secret_chat_id, access_rights);
-    }
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-bool DialogManager::have_input_peer(DialogId dialog_id, bool allow_secret_chats, AccessRights access_rights) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      UserId user_id = dialog_id.get_user_id();
-      return td_->user_manager_->have_input_peer_user(user_id, access_rights);
-    }
-    case DialogType::Chat: {
-      ChatId chat_id = dialog_id.get_chat_id();
-      return td_->chat_manager_->have_input_peer_chat(chat_id, access_rights);
-    }
-    case DialogType::Channel: {
-      ChannelId channel_id = dialog_id.get_channel_id();
-      return td_->chat_manager_->have_input_peer_channel(channel_id, access_rights);
-    }
-    case DialogType::SecretChat: {
-      if (!allow_secret_chats) {
-        return false;
-      }
-      SecretChatId secret_chat_id = dialog_id.get_secret_chat_id();
-      return td_->user_manager_->have_input_encrypted_peer(secret_chat_id, access_rights);
-    }
-    case DialogType::None:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool DialogManager::have_dialog_force(DialogId dialog_id, const char *source) const {
-  return td_->messages_manager_->have_dialog_force(dialog_id, source);
-}
-
-void DialogManager::force_create_dialog(DialogId dialog_id, const char *source, bool expect_no_access,
-                                        bool force_update_dialog_pos) {
-  td_->messages_manager_->force_create_dialog(dialog_id, source, expect_no_access, force_update_dialog_pos);
-}
-
-vector<DialogId> DialogManager::get_peers_dialog_ids(vector<telegram_api::object_ptr<telegram_api::Peer>> &&peers,
-                                                     bool expect_no_access) {
-  vector<DialogId> result;
-  result.reserve(peers.size());
-  for (auto &peer : peers) {
-    DialogId dialog_id(peer);
-    if (dialog_id.is_valid()) {
-      force_create_dialog(dialog_id, "get_peers_dialog_ids", expect_no_access);
-      result.push_back(dialog_id);
-    }
-  }
-  return result;
-}
-
-bool DialogManager::have_dialog_info(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      UserId user_id = dialog_id.get_user_id();
-      return td_->user_manager_->have_user(user_id);
-    }
-    case DialogType::Chat: {
-      ChatId chat_id = dialog_id.get_chat_id();
-      return td_->chat_manager_->have_chat(chat_id);
-    }
-    case DialogType::Channel: {
-      ChannelId channel_id = dialog_id.get_channel_id();
-      return td_->chat_manager_->have_channel(channel_id);
-    }
-    case DialogType::SecretChat: {
-      SecretChatId secret_chat_id = dialog_id.get_secret_chat_id();
-      return td_->user_manager_->have_secret_chat(secret_chat_id);
-    }
-    case DialogType::None:
-    default:
-      return false;
-  }
-}
-
-bool DialogManager::is_dialog_info_received_from_server(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->is_user_received_from_server(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->is_chat_received_from_server(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->is_channel_received_from_server(dialog_id.get_channel_id());
-    default:
-      return false;
-  }
-}
-
-bool DialogManager::have_dialog_info_force(DialogId dialog_id, const char *source) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      UserId user_id = dialog_id.get_user_id();
-      return td_->user_manager_->have_user_force(user_id, source);
-    }
-    case DialogType::Chat: {
-      ChatId chat_id = dialog_id.get_chat_id();
-      return td_->chat_manager_->have_chat_force(chat_id, source);
-    }
-    case DialogType::Channel: {
-      ChannelId channel_id = dialog_id.get_channel_id();
-      return td_->chat_manager_->have_channel_force(channel_id, source);
-    }
-    case DialogType::SecretChat: {
-      SecretChatId secret_chat_id = dialog_id.get_secret_chat_id();
-      return td_->user_manager_->have_secret_chat_force(secret_chat_id, source);
-    }
-    case DialogType::None:
-    default:
-      return false;
-  }
-}
-
-void DialogManager::reload_dialog_info(DialogId dialog_id, Promise<Unit> &&promise) {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->reload_user(dialog_id.get_user_id(), std::move(promise), "reload_dialog_info");
-    case DialogType::Chat:
-      return td_->chat_manager_->reload_chat(dialog_id.get_chat_id(), std::move(promise), "reload_dialog_info");
-    case DialogType::Channel:
-      return td_->chat_manager_->reload_channel(dialog_id.get_channel_id(), std::move(promise), "reload_dialog_info");
-    default:
-      return promise.set_error(Status::Error("Invalid chat identifier to reload"));
-  }
-}
-
-void DialogManager::get_dialog_info_full(DialogId dialog_id, Promise<Unit> &&promise, const char *source) {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      send_closure_later(td_->user_manager_actor_, &UserManager::load_user_full, dialog_id.get_user_id(), false,
-                         std::move(promise), source);
-      return;
-    case DialogType::Chat:
-      send_closure_later(td_->chat_manager_actor_, &ChatManager::load_chat_full, dialog_id.get_chat_id(), false,
-                         std::move(promise), source);
-      return;
-    case DialogType::Channel:
-      send_closure_later(td_->chat_manager_actor_, &ChatManager::load_channel_full, dialog_id.get_channel_id(), false,
-                         std::move(promise), source);
-      return;
-    case DialogType::SecretChat:
-      return promise.set_value(Unit());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return promise.set_error(Status::Error(500, "Wrong chat type"));
-  }
-}
-
-void DialogManager::reload_dialog_info_full(DialogId dialog_id, const char *source) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Reload full info about " << dialog_id << " from " << source;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      send_closure_later(td_->user_manager_actor_, &UserManager::reload_user_full, dialog_id.get_user_id(),
-                         Promise<Unit>(), source);
-      return;
-    case DialogType::Chat:
-      send_closure_later(td_->chat_manager_actor_, &ChatManager::reload_chat_full, dialog_id.get_chat_id(),
-                         Promise<Unit>(), source);
-      return;
-    case DialogType::Channel:
-      send_closure_later(td_->chat_manager_actor_, &ChatManager::reload_channel_full, dialog_id.get_channel_id(),
-                         Promise<Unit>(), source);
-      return;
-    case DialogType::SecretChat:
-      return;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return;
-  }
-}
-
-void DialogManager::on_dialog_info_full_invalidated(DialogId dialog_id) {
-  if (td_->messages_manager_->is_dialog_opened(dialog_id)) {
-    reload_dialog_info_full(dialog_id, "on_dialog_info_full_invalidated");
-  }
-}
-
-int64 DialogManager::get_chat_id_object(DialogId dialog_id, const char *source) const {
-  return td_->messages_manager_->get_chat_id_object(dialog_id, source);
-}
-
-vector<int64> DialogManager::get_chat_ids_object(const vector<DialogId> &dialog_ids, const char *source) const {
-  return transform(dialog_ids, [this, source](DialogId dialog_id) { return get_chat_id_object(dialog_id, source); });
-}
-
-td_api::object_ptr<td_api::chats> DialogManager::get_chats_object(int32 total_count, const vector<DialogId> &dialog_ids,
-                                                                  const char *source) const {
-  if (total_count == -1) {
-    total_count = narrow_cast<int32>(dialog_ids.size());
-  }
-  return td_api::make_object<td_api::chats>(total_count, get_chat_ids_object(dialog_ids, source));
-}
-
-td_api::object_ptr<td_api::chats> DialogManager::get_chats_object(const std::pair<int32, vector<DialogId>> &dialog_ids,
-                                                                  const char *source) const {
-  return get_chats_object(dialog_ids.first, dialog_ids.second, source);
-}
-
-td_api::object_ptr<td_api::ChatType> DialogManager::get_chat_type_object(DialogId dialog_id, const char *source) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_api::make_object<td_api::chatTypePrivate>(
-          td_->user_manager_->get_user_id_object(dialog_id.get_user_id(), source));
-    case DialogType::Chat:
-      return td_api::make_object<td_api::chatTypeBasicGroup>(
-          td_->chat_manager_->get_basic_group_id_object(dialog_id.get_chat_id(), source));
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      return td_api::make_object<td_api::chatTypeSupergroup>(
-          td_->chat_manager_->get_supergroup_id_object(channel_id, source),
-          !td_->chat_manager_->is_megagroup_channel(channel_id));
-    }
-    case DialogType::SecretChat: {
-      auto secret_chat_id = dialog_id.get_secret_chat_id();
-      auto user_id = td_->user_manager_->get_secret_chat_user_id(secret_chat_id);
-      return td_api::make_object<td_api::chatTypeSecret>(
-          td_->user_manager_->get_secret_chat_id_object(secret_chat_id, source),
-          td_->user_manager_->get_user_id_object(user_id, source));
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-NotificationSettingsScope DialogManager::get_dialog_notification_setting_scope(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::SecretChat:
-      return NotificationSettingsScope::Private;
-    case DialogType::Chat:
-      return NotificationSettingsScope::Group;
-    case DialogType::Channel:
-      return is_broadcast_channel(dialog_id) ? NotificationSettingsScope::Channel : NotificationSettingsScope::Group;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return NotificationSettingsScope::Private;
-  }
-}
-
-void DialogManager::migrate_dialog_to_megagroup(DialogId dialog_id,
-                                                Promise<td_api::object_ptr<td_api::chat>> &&promise) {
-  if (!have_dialog_force(dialog_id, "migrate_dialog_to_megagroup")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (dialog_id.get_type() != DialogType::Chat) {
-    return promise.set_error(Status::Error(400, "Only basic group chats can be converted to supergroup"));
-  }
-
-  auto chat_id = dialog_id.get_chat_id();
-  if (!td_->chat_manager_->get_chat_status(chat_id).is_creator()) {
-    return promise.set_error(Status::Error(400, "Need creator rights in the chat"));
-  }
-  if (td_->chat_manager_->get_chat_migrated_to_channel_id(chat_id).is_valid()) {
-    return on_migrate_chat_to_megagroup(chat_id, std::move(promise));
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), chat_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &DialogManager::on_migrate_chat_to_megagroup, chat_id, std::move(promise));
-      });
-  td_->create_handler<MigrateChatQuery>(std::move(query_promise))->send(chat_id);
-}
-
-void DialogManager::on_migrate_chat_to_megagroup(ChatId chat_id, Promise<td_api::object_ptr<td_api::chat>> &&promise) {
-  auto channel_id = td_->chat_manager_->get_chat_migrated_to_channel_id(chat_id);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Can't find the supergroup to which the basic group has migrated";
-    return promise.set_error(Status::Error(500, "Supergroup not found"));
-  }
-  if (!td_->chat_manager_->have_channel(channel_id)) {
-    LOG(ERROR) << "Can't find info about the supergroup to which the basic group has migrated";
-    return promise.set_error(Status::Error(500, "Supergroup info is not found"));
-  }
-
-  auto dialog_id = DialogId(channel_id);
-  force_create_dialog(dialog_id, "on_migrate_chat_to_megagroup");
-  promise.set_value(td_->messages_manager_->get_chat_object(dialog_id, "on_migrate_chat_to_megagroup"));
-}
-
-void DialogManager::on_dialog_opened(DialogId dialog_id) {
-  if (!td_->auth_manager_->is_bot()) {
-    recently_opened_dialogs_.add_dialog(dialog_id);
-  }
-}
-
-void DialogManager::on_dialog_deleted(DialogId dialog_id) {
-  if (!td_->auth_manager_->is_bot()) {
-    recently_found_dialogs_.remove_dialog(dialog_id);
-    recently_opened_dialogs_.remove_dialog(dialog_id);
-  }
-}
-
-std::pair<int32, vector<DialogId>> DialogManager::search_recently_found_dialogs(const string &query, int32 limit,
-                                                                                Promise<Unit> &&promise) {
-  auto result = recently_found_dialogs_.get_dialogs(query.empty() ? limit : 50, std::move(promise));
-  if (result.first == 0 || query.empty()) {
-    return result;
-  }
-
-  Hints hints;
-  int rating = 1;
-  for (auto dialog_id : result.second) {
-    hints.add(dialog_id.get(), get_dialog_search_text(dialog_id));
-    hints.set_rating(dialog_id.get(), ++rating);
-  }
-
-  auto hints_result = hints.search(query, limit, false);
-  return {narrow_cast<int32>(hints_result.first),
-          transform(hints_result.second, [](int64 key) { return DialogId(key); })};
-}
-
-Status DialogManager::add_recently_found_dialog(DialogId dialog_id) {
-  if (!have_dialog_force(dialog_id, "add_recently_found_dialog")) {
-    return Status::Error(400, "Chat not found");
-  }
-  recently_found_dialogs_.add_dialog(dialog_id);
-  return Status::OK();
-}
-
-Status DialogManager::remove_recently_found_dialog(DialogId dialog_id) {
-  if (!have_dialog_force(dialog_id, "remove_recently_found_dialog")) {
-    return Status::Error(400, "Chat not found");
-  }
-  recently_found_dialogs_.remove_dialog(dialog_id);
-  return Status::OK();
-}
-
-void DialogManager::clear_recently_found_dialogs() {
-  recently_found_dialogs_.clear_dialogs();
-}
-
-std::pair<int32, vector<DialogId>> DialogManager::get_recently_opened_dialogs(int32 limit, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  return recently_opened_dialogs_.get_dialogs(limit, std::move(promise));
-}
-
-bool DialogManager::is_anonymous_administrator(DialogId dialog_id, string *author_signature) const {
-  CHECK(dialog_id.is_valid());
-
-  if (is_broadcast_channel(dialog_id)) {
-    return true;
-  }
-
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return false;
-  }
-
-  auto status = td_->chat_manager_->get_channel_status(dialog_id.get_channel_id());
-  if (!status.is_anonymous()) {
-    return false;
-  }
-
-  if (author_signature != nullptr) {
-    *author_signature = status.get_rank();
-  }
-  return true;
-}
-
-bool DialogManager::is_group_dialog(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::Chat:
-      return true;
-    case DialogType::Channel:
-      return td_->chat_manager_->is_megagroup_channel(dialog_id.get_channel_id());
-    default:
-      return false;
-  }
-}
-
-bool DialogManager::is_forum_channel(DialogId dialog_id) const {
-  return dialog_id.get_type() == DialogType::Channel &&
-         td_->chat_manager_->is_forum_channel(dialog_id.get_channel_id());
-}
-
-bool DialogManager::is_broadcast_channel(DialogId dialog_id) const {
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return false;
-  }
-
-  return td_->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id());
-}
-
-bool DialogManager::on_get_dialog_error(DialogId dialog_id, const Status &status, const char *source) {
-  auto message = status.message();
-  if (message == CSlice("BOT_METHOD_INVALID")) {
-    LOG(ERROR) << "Receive BOT_METHOD_INVALID from " << source;
-    return true;
-  }
-  if (G()->is_expected_error(status)) {
-    return true;
-  }
-  if (message == CSlice("SEND_AS_PEER_INVALID")) {
-    reload_dialog_info_full(dialog_id, "SEND_AS_PEER_INVALID");
-    return true;
-  }
-  if (message == CSlice("QUOTE_TEXT_INVALID") || message == CSlice("REPLY_MESSAGE_ID_INVALID") ||
-      begins_with(message, "ALLOW_PAYMENT_REQUIRED_")) {
-    return true;
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-      // to be implemented if necessary
-      break;
-    case DialogType::Channel:
-      return td_->chat_manager_->on_get_channel_error(dialog_id.get_channel_id(), status, source);
-    case DialogType::None:
-      // to be implemented if necessary
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return false;
-}
-
-void DialogManager::delete_dialog(DialogId dialog_id, Promise<Unit> &&promise) {
-  if (!have_dialog_force(dialog_id, "delete_dialog")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->messages_manager_->delete_dialog_history(dialog_id, true, true, std::move(promise));
-    case DialogType::Chat:
-      return td_->chat_manager_->delete_chat(dialog_id.get_chat_id(), std::move(promise));
-    case DialogType::Channel:
-      return td_->chat_manager_->delete_channel(dialog_id.get_channel_id(), std::move(promise));
-    case DialogType::SecretChat:
-      send_closure(td_->secret_chats_manager_, &SecretChatsManager::cancel_chat, dialog_id.get_secret_chat_id(), true,
-                   std::move(promise));
-      return;
-    default:
-      UNREACHABLE();
-  }
-}
-
-string DialogManager::get_dialog_title(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_title(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_title(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_title(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_title(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-const DialogPhoto *DialogManager::get_dialog_photo(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_dialog_photo(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_dialog_photo(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_dialog_photo(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_dialog_photo(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-int32 DialogManager::get_dialog_accent_color_id_object(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_accent_color_id_object(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_accent_color_id_object(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_accent_color_id_object(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_accent_color_id_object(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-CustomEmojiId DialogManager::get_dialog_background_custom_emoji_id(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_background_custom_emoji_id(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_background_custom_emoji_id(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_background_custom_emoji_id(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_background_custom_emoji_id(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return CustomEmojiId();
-  }
-}
-
-int32 DialogManager::get_dialog_profile_accent_color_id_object(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_profile_accent_color_id_object(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_profile_accent_color_id_object(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_profile_accent_color_id_object(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_profile_accent_color_id_object(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-CustomEmojiId DialogManager::get_dialog_profile_background_custom_emoji_id(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_profile_background_custom_emoji_id(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_profile_background_custom_emoji_id(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_profile_background_custom_emoji_id(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_profile_background_custom_emoji_id(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return CustomEmojiId();
-  }
-}
-
-RestrictedRights DialogManager::get_dialog_default_permissions(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_default_permissions(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_default_permissions(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_default_permissions(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_default_permissions(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return RestrictedRights(false, false, false, false, false, false, false, false, false, false, false, false, false,
-                              false, false, false, false, ChannelType::Unknown);
-  }
-}
-
-td_api::object_ptr<td_api::emojiStatus> DialogManager::get_dialog_emoji_status_object(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_emoji_status_object(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_emoji_status_object(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_emoji_status_object(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_emoji_status_object(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-string DialogManager::get_dialog_about(DialogId dialog_id) {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_about(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_about(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_about(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_secret_chat_about(dialog_id.get_secret_chat_id());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-string DialogManager::get_dialog_search_text(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->get_user_search_text(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_title(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_search_text(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return td_->user_manager_->get_user_search_text(
-          td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id()));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  return string();
-}
-
-bool DialogManager::get_dialog_has_protected_content(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return false;
-    case DialogType::Chat:
-      return td_->chat_manager_->get_chat_has_protected_content(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_has_protected_content(dialog_id.get_channel_id());
-    case DialogType::SecretChat:
-      return false;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return true;
-  }
-}
-
-bool DialogManager::is_dialog_action_unneeded(DialogId dialog_id) const {
-  if (is_anonymous_administrator(dialog_id, nullptr)) {
-    return true;
-  }
-
-  auto dialog_type = dialog_id.get_type();
-  if (dialog_type == DialogType::User || dialog_type == DialogType::SecretChat) {
-    UserId user_id = dialog_type == DialogType::User
-                         ? dialog_id.get_user_id()
-                         : td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-    if (td_->user_manager_->is_user_deleted(user_id)) {
-      return true;
-    }
-    if (td_->user_manager_->is_user_bot(user_id) && !td_->user_manager_->is_user_support(user_id)) {
-      return true;
-    }
-    if (user_id == td_->user_manager_->get_my_id()) {
-      return true;
-    }
-
-    if (!td_->auth_manager_->is_bot()) {
-      if (td_->user_manager_->is_user_status_exact(user_id)) {
-        if (!td_->user_manager_->is_user_online(user_id, 30)) {
-          return true;
-        }
-      } else {
-        // return true;
-      }
-    }
-  }
-  return false;
-}
-
-void DialogManager::set_dialog_title(DialogId dialog_id, const string &title, Promise<Unit> &&promise) {
-  if (!have_dialog_force(dialog_id, "set_dialog_title")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  auto new_title = clean_name(title, MAX_TITLE_LENGTH);
-  if (new_title.empty()) {
-    return promise.set_error(Status::Error(400, "Title must be non-empty"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't change private chat title"));
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      auto status = td_->chat_manager_->get_chat_permissions(chat_id);
-      if (!status.can_change_info_and_settings() ||
-          (td_->auth_manager_->is_bot() && !td_->chat_manager_->is_appointed_chat_administrator(chat_id))) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change chat title"));
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto status = td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id());
-      if (!status.can_change_info_and_settings()) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change chat title"));
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't change secret chat title"));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  // TODO this can be wrong if there were previous change title requests
-  if (get_dialog_title(dialog_id) == new_title) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<EditDialogTitleQuery>(std::move(promise))->send(dialog_id, new_title);
-}
-
-void DialogManager::set_dialog_photo(DialogId dialog_id, const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                                     Promise<Unit> &&promise) {
-  if (!have_dialog_force(dialog_id, "set_dialog_photo")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't change private chat photo"));
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      auto status = td_->chat_manager_->get_chat_permissions(chat_id);
-      if (!status.can_change_info_and_settings() ||
-          (td_->auth_manager_->is_bot() && !td_->chat_manager_->is_appointed_chat_administrator(chat_id))) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change chat photo"));
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto status = td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id());
-      if (!status.can_change_info_and_settings()) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change chat photo"));
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't change secret chat photo"));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  const td_api::object_ptr<td_api::InputFile> *input_file = nullptr;
-  double main_frame_timestamp = 0.0;
-  bool is_animation = false;
-  if (input_photo != nullptr) {
-    switch (input_photo->get_id()) {
-      case td_api::inputChatPhotoPrevious::ID: {
-        auto photo = static_cast<const td_api::inputChatPhotoPrevious *>(input_photo.get());
-        auto file_id = td_->user_manager_->get_profile_photo_file_id(photo->chat_photo_id_);
-        if (!file_id.is_valid()) {
-          return promise.set_error(Status::Error(400, "Unknown profile photo identifier specified"));
-        }
-
-        auto file_view = td_->file_manager_->get_file_view(file_id);
-        const auto *main_remote_location = file_view.get_main_remote_location();
-        if (main_remote_location == nullptr) {
-          return promise.set_error(Status::Error(400, "Invalid profile photo identifier specified"));
-        }
-        auto input_chat_photo =
-            telegram_api::make_object<telegram_api::inputChatPhoto>(main_remote_location->as_input_photo());
-        return send_edit_dialog_photo_query(dialog_id, {file_id, FileManager::get_internal_upload_id()},
-                                            std::move(input_chat_photo), std::move(promise));
-      }
-      case td_api::inputChatPhotoStatic::ID: {
-        auto photo = static_cast<const td_api::inputChatPhotoStatic *>(input_photo.get());
-        input_file = &photo->photo_;
-        break;
-      }
-      case td_api::inputChatPhotoAnimation::ID: {
-        auto photo = static_cast<const td_api::inputChatPhotoAnimation *>(input_photo.get());
-        input_file = &photo->animation_;
-        main_frame_timestamp = photo->main_frame_timestamp_;
-        is_animation = true;
-        break;
-      }
-      case td_api::inputChatPhotoSticker::ID: {
-        auto photo = static_cast<const td_api::inputChatPhotoSticker *>(input_photo.get());
-        TRY_RESULT_PROMISE(promise, sticker_photo_size, StickerPhotoSize::get_sticker_photo_size(td_, photo->sticker_));
-
-        int32 flags = telegram_api::inputChatUploadedPhoto::VIDEO_EMOJI_MARKUP_MASK;
-        auto input_chat_photo = telegram_api::make_object<telegram_api::inputChatUploadedPhoto>(
-            flags, nullptr, nullptr, 0.0, sticker_photo_size->get_input_video_size_object(td_));
-        return send_edit_dialog_photo_query(dialog_id, FileUploadId(), std::move(input_chat_photo), std::move(promise));
-      }
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-  if (input_file == nullptr) {
-    send_edit_dialog_photo_query(dialog_id, FileUploadId(),
-                                 telegram_api::make_object<telegram_api::inputChatPhotoEmpty>(), std::move(promise));
-    return;
-  }
-
-  const double MAX_ANIMATION_DURATION = 10.0;
-  if (main_frame_timestamp < 0.0 || main_frame_timestamp > MAX_ANIMATION_DURATION) {
-    return promise.set_error(Status::Error(400, "Wrong main frame timestamp specified"));
-  }
-
-  auto file_type = is_animation ? FileType::Animation : FileType::Photo;
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(file_type, *input_file, dialog_id, true, false));
-  if (!file_id.is_valid()) {
-    send_edit_dialog_photo_query(dialog_id, FileUploadId(),
-                                 telegram_api::make_object<telegram_api::inputChatPhotoEmpty>(), std::move(promise));
-    return;
-  }
-
-  upload_dialog_photo(dialog_id, {file_id, FileManager::get_internal_upload_id()}, is_animation, main_frame_timestamp,
-                      false, std::move(promise));
-}
-
-void DialogManager::send_edit_dialog_photo_query(
-    DialogId dialog_id, FileUploadId file_upload_id,
-    telegram_api::object_ptr<telegram_api::InputChatPhoto> &&input_chat_photo, Promise<Unit> &&promise) {
-  td_->create_handler<EditDialogPhotoQuery>(std::move(promise))
-      ->send(dialog_id, file_upload_id, std::move(input_chat_photo));
-}
-
-void DialogManager::upload_dialog_photo(DialogId dialog_id, FileUploadId file_upload_id, bool is_animation,
-                                        double main_frame_timestamp, bool is_reupload, Promise<Unit> &&promise,
-                                        vector<int> bad_parts) {
-  CHECK(file_upload_id.is_valid());
-  LOG(INFO) << "Ask to upload chat photo " << file_upload_id;
-  bool is_inserted = being_uploaded_dialog_photos_
-                         .emplace(file_upload_id, UploadedDialogPhotoInfo{dialog_id, main_frame_timestamp, is_animation,
-                                                                          is_reupload, std::move(promise)})
-                         .second;
-  CHECK(is_inserted);
-  // TODO use force_reupload if is_reupload
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_dialog_photo_callback_, 32, 0);
-}
-
-void DialogManager::on_upload_dialog_photo(FileUploadId file_upload_id,
-                                           telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Chat photo " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_dialog_photos_.find(file_upload_id);
-  CHECK(it != being_uploaded_dialog_photos_.end());
-  DialogId dialog_id = it->second.dialog_id;
-  double main_frame_timestamp = it->second.main_frame_timestamp;
-  bool is_animation = it->second.is_animation;
-  bool is_reupload = it->second.is_reupload;
-  Promise<Unit> promise = std::move(it->second.promise);
-  being_uploaded_dialog_photos_.erase(it);
-
-  FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  CHECK(!file_view.is_encrypted());
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (input_file == nullptr && main_remote_location != nullptr) {
-    if (main_remote_location->is_web()) {
-      return promise.set_error(Status::Error(400, "Can't use web photo as profile photo"));
-    }
-    if (is_reupload) {
-      return promise.set_error(Status::Error(400, "Failed to reupload the file"));
-    }
-
-    if (is_animation) {
-      CHECK(file_view.get_type() == FileType::Animation);
-      // delete file reference and forcely reupload the file
-      auto file_reference = FileManager::extract_file_reference(main_remote_location->as_input_document());
-      td_->file_manager_->delete_file_reference(file_upload_id.get_file_id(), file_reference);
-      upload_dialog_photo(dialog_id, file_upload_id, is_animation, main_frame_timestamp, true, std::move(promise),
-                          {-1});
-    } else {
-      CHECK(file_view.get_type() == FileType::Photo);
-      auto input_photo = main_remote_location->as_input_photo();
-      auto input_chat_photo = telegram_api::make_object<telegram_api::inputChatPhoto>(std::move(input_photo));
-      send_edit_dialog_photo_query(dialog_id, file_upload_id, std::move(input_chat_photo), std::move(promise));
-    }
-    return;
-  }
-  CHECK(input_file != nullptr);
-
-  int32 flags = 0;
-  telegram_api::object_ptr<telegram_api::InputFile> photo_input_file;
-  telegram_api::object_ptr<telegram_api::InputFile> video_input_file;
-  if (is_animation) {
-    flags |= telegram_api::inputChatUploadedPhoto::VIDEO_MASK;
-    video_input_file = std::move(input_file);
-
-    if (main_frame_timestamp != 0.0) {
-      flags |= telegram_api::inputChatUploadedPhoto::VIDEO_START_TS_MASK;
-    }
-  } else {
-    flags |= telegram_api::inputChatUploadedPhoto::FILE_MASK;
-    photo_input_file = std::move(input_file);
-  }
-
-  auto input_chat_photo = telegram_api::make_object<telegram_api::inputChatUploadedPhoto>(
-      flags, std::move(photo_input_file), std::move(video_input_file), main_frame_timestamp, nullptr);
-  send_edit_dialog_photo_query(dialog_id, file_upload_id, std::move(input_chat_photo), std::move(promise));
-}
-
-void DialogManager::on_upload_dialog_photo_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(INFO) << "Chat photo " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_dialog_photos_.find(file_upload_id);
-  CHECK(it != being_uploaded_dialog_photos_.end());
-  Promise<Unit> promise = std::move(it->second.promise);
-  being_uploaded_dialog_photos_.erase(it);
-
-  promise.set_error(std::move(status));
-}
-
-void DialogManager::set_dialog_accent_color(DialogId dialog_id, AccentColorId accent_color_id,
-                                            CustomEmojiId background_custom_emoji_id, Promise<Unit> &&promise) {
-  if (!have_dialog_force(dialog_id, "set_dialog_accent_color")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (dialog_id == get_my_dialog_id()) {
-        return td_->user_manager_->set_accent_color(accent_color_id, background_custom_emoji_id, std::move(promise));
-      }
-      break;
-    case DialogType::Chat:
-      break;
-    case DialogType::Channel:
-      return td_->chat_manager_->set_channel_accent_color(dialog_id.get_channel_id(), accent_color_id,
-                                                          background_custom_emoji_id, std::move(promise));
-    case DialogType::SecretChat:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  promise.set_error(Status::Error(400, "Can't change accent color in the chat"));
-}
-
-void DialogManager::set_dialog_profile_accent_color(DialogId dialog_id, AccentColorId profile_accent_color_id,
-                                                    CustomEmojiId profile_background_custom_emoji_id,
-                                                    Promise<Unit> &&promise) {
-  if (!have_dialog_force(dialog_id, "set_dialog_profile_accent_color")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (dialog_id == get_my_dialog_id()) {
-        return td_->user_manager_->set_profile_accent_color(profile_accent_color_id, profile_background_custom_emoji_id,
-                                                            std::move(promise));
-      }
-      break;
-    case DialogType::Chat:
-      break;
-    case DialogType::Channel:
-      return td_->chat_manager_->set_channel_profile_accent_color(
-          dialog_id.get_channel_id(), profile_accent_color_id, profile_background_custom_emoji_id, std::move(promise));
-    case DialogType::SecretChat:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  promise.set_error(Status::Error(400, "Can't change profile accent color in the chat"));
-}
-
-void DialogManager::set_dialog_permissions(DialogId dialog_id,
-                                           const td_api::object_ptr<td_api::chatPermissions> &permissions,
-                                           Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_dialog_access(dialog_id, false, AccessRights::Write, "set_dialog_permissions"));
-
-  if (permissions == nullptr) {
-    return promise.set_error(Status::Error(400, "New permissions must be non-empty"));
-  }
-
-  ChannelType channel_type = ChannelType::Unknown;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't change private chat permissions"));
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      auto status = td_->chat_manager_->get_chat_permissions(chat_id);
-      if (!status.can_restrict_members()) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change chat permissions"));
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      if (is_broadcast_channel(dialog_id)) {
-        return promise.set_error(Status::Error(400, "Can't change channel chat permissions"));
-      }
-      auto status = td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id());
-      if (!status.can_restrict_members()) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change chat permissions"));
-      }
-      channel_type = ChannelType::Megagroup;
-      break;
-    }
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  RestrictedRights new_permissions(permissions, channel_type);
-
-  // TODO this can be wrong if there were previous change permissions requests
-  if (get_dialog_default_permissions(dialog_id) == new_permissions) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<EditChatDefaultBannedRightsQuery>(std::move(promise))->send(dialog_id, new_permissions);
-}
-
-void DialogManager::set_dialog_emoji_status(DialogId dialog_id, const unique_ptr<EmojiStatus> &emoji_status,
-                                            Promise<Unit> &&promise) {
-  if (!have_dialog_force(dialog_id, "set_dialog_emoji_status")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (dialog_id == get_my_dialog_id()) {
-        return td_->user_manager_->set_emoji_status(emoji_status, std::move(promise));
-      }
-      break;
-    case DialogType::Chat:
-      break;
-    case DialogType::Channel:
-      return td_->chat_manager_->set_channel_emoji_status(dialog_id.get_channel_id(), emoji_status, std::move(promise));
-    case DialogType::SecretChat:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  promise.set_error(Status::Error(400, "Can't change emoji status in the chat"));
-}
-
-void DialogManager::toggle_dialog_has_protected_content(DialogId dialog_id, bool has_protected_content,
-                                                        Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise,
-                     check_dialog_access(dialog_id, false, AccessRights::Read, "toggle_dialog_has_protected_content"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't restrict saving content in the chat"));
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      auto status = td_->chat_manager_->get_chat_status(chat_id);
-      if (!status.is_creator()) {
-        return promise.set_error(Status::Error(400, "Only owner can restrict saving content"));
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto status = td_->chat_manager_->get_channel_status(dialog_id.get_channel_id());
-      if (!status.is_creator()) {
-        return promise.set_error(Status::Error(400, "Only owner can restrict saving content"));
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  // TODO this can be wrong if there were previous toggle_dialog_has_protected_content requests
-  if (get_dialog_has_protected_content(dialog_id) == has_protected_content) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<ToggleNoForwardsQuery>(std::move(promise))->send(dialog_id, has_protected_content);
-}
-
-void DialogManager::set_dialog_description(DialogId dialog_id, const string &description, Promise<Unit> &&promise) {
-  if (!have_dialog_force(dialog_id, "set_dialog_description")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't change private chat description"));
-    case DialogType::Chat:
-      return td_->chat_manager_->set_chat_description(dialog_id.get_chat_id(), description, std::move(promise));
-    case DialogType::Channel:
-      return td_->chat_manager_->set_channel_description(dialog_id.get_channel_id(), description, std::move(promise));
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't change secret chat description"));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogManager::set_dialog_location(DialogId dialog_id, const DialogLocation &location, Promise<Unit> &&promise) {
-  if (!have_dialog_force(dialog_id, "set_dialog_location")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "The chat can't have location"));
-    case DialogType::Channel:
-      return td_->chat_manager_->set_channel_location(dialog_id.get_channel_id(), location, std::move(promise));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogManager::load_dialog_marks_as_unread() {
-  if (!G()->td_db()->get_binlog_pmc()->isset("fetched_marks_as_unread")) {
-    td_->create_handler<GetDialogUnreadMarksQuery>()->send();
-  }
-}
-
-bool DialogManager::can_report_dialog(DialogId dialog_id) const {
-  // doesn't include possibility of report from action bar
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->user_manager_->can_report_user(dialog_id.get_user_id());
-    case DialogType::Chat:
-      return false;
-    case DialogType::Channel:
-      return !td_->chat_manager_->get_channel_status(dialog_id.get_channel_id()).is_creator();
-    case DialogType::SecretChat:
-      return false;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-void DialogManager::report_dialog(DialogId dialog_id, const string &option_id, const vector<MessageId> &message_ids,
-                                  const string &text, Promise<td_api::object_ptr<td_api::ReportChatResult>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_dialog_access(dialog_id, true, AccessRights::Read, "report_dialog"));
-
-  MessagesManager::ReportDialogFromActionBar report_from_action_bar;
-  if (option_id.empty() && message_ids.empty() && text.empty()) {
-    // can be a report from action bar
-    report_from_action_bar = td_->messages_manager_->report_dialog_from_action_bar(dialog_id, promise);
-    if (report_from_action_bar.is_reported_) {
-      return;
-    }
-  }
-
-  if (!can_report_dialog(dialog_id)) {
-    if (report_from_action_bar.know_action_bar_) {
-      return promise.set_value(td_api::make_object<td_api::reportChatResultOk>());
-    }
-
-    return promise.set_error(Status::Error(400, "Chat can't be reported"));
-  }
-
-  for (auto message_id : message_ids) {
-    TRY_STATUS_PROMISE(promise, MessagesManager::can_report_message(message_id));
-  }
-
-  td_->create_handler<ReportPeerQuery>(std::move(promise))->send(dialog_id, option_id, message_ids, text);
-}
-
-void DialogManager::report_dialog_photo(DialogId dialog_id, FileId file_id, ReportReason &&reason,
-                                        Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_dialog_access(dialog_id, false, AccessRights::Read, "report_dialog_photo"));
-
-  if (!can_report_dialog(dialog_id)) {
-    return promise.set_error(Status::Error(400, "Chat photo can't be reported"));
-  }
-
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.empty()) {
-    return promise.set_error(Status::Error(400, "Unknown file identifier"));
-  }
-  if (get_main_file_type(file_view.get_type()) != FileType::Photo) {
-    return promise.set_error(Status::Error(400, "Only full chat photos can be reported"));
-  }
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr || !full_remote_location->is_photo()) {
-    return promise.set_error(Status::Error(400, "Invalid photo identifier specified"));
-  }
-
-  td_->create_handler<ReportProfilePhotoQuery>(std::move(promise))
-      ->send(dialog_id, file_id, full_remote_location->as_input_photo(), std::move(reason));
-}
-
-Status DialogManager::can_pin_messages(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      break;
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      auto status = td_->chat_manager_->get_chat_permissions(chat_id);
-      if (!status.can_pin_messages() ||
-          (td_->auth_manager_->is_bot() && !td_->chat_manager_->is_appointed_chat_administrator(chat_id))) {
-        return Status::Error(400, "Not enough rights to manage pinned messages in the chat");
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto status = td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id());
-      bool can_pin = is_broadcast_channel(dialog_id) ? status.can_edit_messages() : status.can_pin_messages();
-      if (!can_pin) {
-        return Status::Error(400, "Not enough rights to manage pinned messages in the chat");
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      return Status::Error(400, "Secret chats can't have pinned messages");
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  if (!have_input_peer(dialog_id, false, AccessRights::Write)) {
-    return Status::Error(400, "Not enough rights");
-  }
-
-  return Status::OK();
-}
-
-bool DialogManager::can_use_premium_custom_emoji_in_dialog(DialogId dialog_id) const {
-  if (td_->auth_manager_->is_bot()) {
-    return true;
-  }
-  if (dialog_id == get_my_dialog_id() || td_->option_manager_->get_option_boolean("is_premium")) {
-    return true;
-  }
-  if (dialog_id.get_type() == DialogType::Channel &&
-      td_->chat_manager_->can_use_premium_custom_emoji_in_channel(dialog_id.get_channel_id())) {
-    return true;
-  }
-  return false;
-}
-
-bool DialogManager::is_dialog_removed_from_dialog_list(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      break;
-    case DialogType::Chat:
-      return !td_->chat_manager_->get_chat_is_active(dialog_id.get_chat_id());
-    case DialogType::Channel:
-      return !td_->chat_manager_->get_channel_status(dialog_id.get_channel_id()).is_member();
-    case DialogType::SecretChat:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return false;
-}
-
-void DialogManager::on_update_dialog_bot_commands(
-    DialogId dialog_id, UserId bot_user_id, vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands) {
-  if (!bot_user_id.is_valid()) {
-    LOG(ERROR) << "Receive updateBotCommands about invalid " << bot_user_id;
-    return;
-  }
-  if (!td_->user_manager_->have_user_force(bot_user_id, "on_update_dialog_bot_commands") ||
-      !td_->user_manager_->is_user_bot(bot_user_id)) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (DialogId(bot_user_id) != dialog_id) {
-        LOG(ERROR) << "Receive commands of " << bot_user_id << " in " << dialog_id;
-        return;
-      }
-      return td_->user_manager_->on_update_user_commands(bot_user_id, std::move(bot_commands));
-    case DialogType::Chat:
-      return td_->chat_manager_->on_update_chat_bot_commands(dialog_id.get_chat_id(),
-                                                             BotCommands(bot_user_id, std::move(bot_commands)));
-    case DialogType::Channel:
-      return td_->chat_manager_->on_update_channel_bot_commands(dialog_id.get_channel_id(),
-                                                                BotCommands(bot_user_id, std::move(bot_commands)));
-    case DialogType::SecretChat:
-    default:
-      LOG(ERROR) << "Receive updateBotCommands in " << dialog_id;
-      break;
-  }
-}
-
-void DialogManager::on_dialog_usernames_updated(DialogId dialog_id, const Usernames &old_usernames,
-                                                const Usernames &new_usernames) {
-  LOG(INFO) << "Update usernames in " << dialog_id << " from " << old_usernames << " to " << new_usernames;
-
-  for (auto &username : old_usernames.get_active_usernames()) {
-    auto cleaned_username = clean_username(username);
-    resolved_usernames_.erase(cleaned_username);
-    inaccessible_resolved_usernames_.erase(cleaned_username);
-  }
-
-  on_dialog_usernames_received(dialog_id, new_usernames, false);
-}
-
-void DialogManager::on_dialog_usernames_received(DialogId dialog_id, const Usernames &usernames, bool from_database) {
-  for (auto &username : usernames.get_active_usernames()) {
-    auto cleaned_username = clean_username(username);
-    if (!cleaned_username.empty()) {
-      resolved_usernames_[cleaned_username] =
-          ResolvedUsername{dialog_id, Time::now() + (from_database ? 0 : USERNAME_CACHE_EXPIRE_TIME)};
-    }
-  }
-}
-
-void DialogManager::check_dialog_username(DialogId dialog_id, const string &username,
-                                          Promise<CheckDialogUsernameResult> &&promise) {
-  if (dialog_id != DialogId() && dialog_id.get_type() != DialogType::User &&
-      !have_dialog_force(dialog_id, "check_dialog_username")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      if (dialog_id != get_my_dialog_id()) {
-        return promise.set_error(Status::Error(400, "Can't check username for private chat with other user"));
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      if (!td_->chat_manager_->get_channel_status(channel_id).is_creator()) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change username"));
-      }
-      if (username == td_->chat_manager_->get_channel_editable_username(channel_id)) {
-        return promise.set_value(CheckDialogUsernameResult::Ok);
-      }
-      break;
-    }
-    case DialogType::None:
-      break;
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-      if (!username.empty()) {
-        return promise.set_error(Status::Error(400, "The chat can't have a username"));
-      }
-      break;
-    default:
-      UNREACHABLE();
-      return;
-  }
-
-  if (username.empty()) {
-    return promise.set_value(CheckDialogUsernameResult::Ok);
-  }
-
-  if (!is_allowed_username(username) && username.size() != 4) {
-    return promise.set_value(CheckDialogUsernameResult::Invalid);
-  }
-
-  auto request_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<bool> result) mutable {
-    if (result.is_error()) {
-      auto error = result.move_as_error();
-      if (error.message() == "CHANNEL_PUBLIC_GROUP_NA") {
-        return promise.set_value(CheckDialogUsernameResult::PublicGroupsUnavailable);
-      }
-      if (error.message() == "CHANNELS_ADMIN_PUBLIC_TOO_MUCH") {
-        return promise.set_value(CheckDialogUsernameResult::PublicDialogsTooMany);
-      }
-      if (error.message() == "USERNAME_INVALID") {
-        return promise.set_value(CheckDialogUsernameResult::Invalid);
-      }
-      if (error.message() == "USERNAME_PURCHASE_AVAILABLE") {
-        if (begins_with(G()->get_option_string("my_phone_number"), "1")) {
-          return promise.set_value(CheckDialogUsernameResult::Invalid);
-        }
-        return promise.set_value(CheckDialogUsernameResult::Purchasable);
-      }
-      return promise.set_error(std::move(error));
-    }
-
-    promise.set_value(result.ok() ? CheckDialogUsernameResult::Ok : CheckDialogUsernameResult::Occupied);
-  });
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return td_->create_handler<CheckUsernameQuery>(std::move(request_promise))->send(username);
-    case DialogType::Channel:
-      return td_->create_handler<CheckChannelUsernameQuery>(std::move(request_promise))
-          ->send(dialog_id.get_channel_id(), username);
-    case DialogType::None:
-      return td_->create_handler<CheckChannelUsernameQuery>(std::move(request_promise))->send(ChannelId(), username);
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    default:
-      UNREACHABLE();
-  }
-}
-
-td_api::object_ptr<td_api::CheckChatUsernameResult> DialogManager::get_check_chat_username_result_object(
-    CheckDialogUsernameResult result) {
-  switch (result) {
-    case CheckDialogUsernameResult::Ok:
-      return td_api::make_object<td_api::checkChatUsernameResultOk>();
-    case CheckDialogUsernameResult::Invalid:
-      return td_api::make_object<td_api::checkChatUsernameResultUsernameInvalid>();
-    case CheckDialogUsernameResult::Occupied:
-      return td_api::make_object<td_api::checkChatUsernameResultUsernameOccupied>();
-    case CheckDialogUsernameResult::Purchasable:
-      return td_api::make_object<td_api::checkChatUsernameResultUsernamePurchasable>();
-    case CheckDialogUsernameResult::PublicDialogsTooMany:
-      return td_api::make_object<td_api::checkChatUsernameResultPublicChatsTooMany>();
-    case CheckDialogUsernameResult::PublicGroupsUnavailable:
-      return td_api::make_object<td_api::checkChatUsernameResultPublicGroupsUnavailable>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-void DialogManager::send_resolve_dialog_username_query(const string &username, Promise<Unit> &&promise) {
-  CHECK(!username.empty());
-  auto &queries = resolve_dialog_username_queries_[username];
-  queries.push_back(std::move(promise));
-  if (queries.size() != 1u) {
-    return;
-  }
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), username](Result<DialogId> r_dialog_id) {
-    send_closure(actor_id, &DialogManager::on_resolved_username, username, std::move(r_dialog_id));
-  });
-  td_->create_handler<ResolveUsernameQuery>(std::move(query_promise))->send(username);
-}
-
-void DialogManager::on_resolved_username(const string &username, Result<DialogId> r_dialog_id) {
-  G()->ignore_result_if_closing(r_dialog_id);
-  auto it = resolve_dialog_username_queries_.find(username);
-  CHECK(it != resolve_dialog_username_queries_.end());
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  resolve_dialog_username_queries_.erase(it);
-  if (r_dialog_id.is_error()) {
-    auto error_message = r_dialog_id.error().message();
-    if (error_message == Slice("USERNAME_NOT_OCCUPIED") || error_message == Slice("USERNAME_INVALID")) {
-      drop_username(username);
-    }
-    return fail_promises(promises, r_dialog_id.move_as_error());
-  }
-
-  auto dialog_id = r_dialog_id.ok();
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Resolve username \"" << username << "\" to invalid " << dialog_id;
-    return fail_promises(promises, Status::Error(500, "Chat not found"));
-  }
-
-  auto cleaned_username = clean_username(username);
-  if (cleaned_username.empty()) {
-    return fail_promises(promises, Status::Error(500, "Invalid username"));
-  }
-
-  auto resolved_username = resolved_usernames_.get(cleaned_username);
-  if (resolved_username.dialog_id.is_valid()) {
-    LOG_IF(ERROR, resolved_username.dialog_id != dialog_id)
-        << "Resolve username \"" << username << "\" to " << dialog_id << ", but have it in "
-        << resolved_username.dialog_id;
-    return set_promises(promises);
-  }
-
-  inaccessible_resolved_usernames_[cleaned_username] = dialog_id;
-  set_promises(promises);
-}
-
-void DialogManager::resolve_dialog(const string &username, ChannelId channel_id, Promise<DialogId> promise) {
-  CHECK(username.empty() == channel_id.is_valid());
-
-  bool have_dialog = username.empty() ? td_->chat_manager_->have_channel_force(channel_id, "resolve_dialog")
-                                      : get_resolved_dialog_by_username(username).is_valid();
-  if (!have_dialog) {
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), username, channel_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-          send_closure(actor_id, &DialogManager::on_resolve_dialog, username, channel_id, std::move(promise));
-        });
-    if (username.empty()) {
-      td_->chat_manager_->reload_channel(channel_id, std::move(query_promise), "resolve_dialog");
-    } else {
-      send_resolve_dialog_username_query(username, std::move(query_promise));
-    }
-    return;
-  }
-
-  return on_resolve_dialog(username, channel_id, std::move(promise));
-}
-
-void DialogManager::on_resolve_dialog(const string &username, ChannelId channel_id, Promise<DialogId> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  DialogId dialog_id;
-  if (username.empty()) {
-    if (!td_->chat_manager_->have_channel(channel_id)) {
-      return promise.set_error(Status::Error(500, "Chat info not found"));
-    }
-
-    dialog_id = DialogId(channel_id);
-    force_create_dialog(dialog_id, "on_resolve_dialog");
-  } else {
-    dialog_id = get_resolved_dialog_by_username(username);
-    if (dialog_id.is_valid()) {
-      force_create_dialog(dialog_id, "on_resolve_dialog", true);
-    }
-  }
-  if (!have_dialog_force(dialog_id, "on_resolve_dialog")) {
-    return promise.set_error(Status::Error(500, "Chat not found"));
-  }
-  promise.set_value(std::move(dialog_id));
-}
-
-DialogId DialogManager::get_resolved_dialog_by_username(const string &username) const {
-  auto cleaned_username = clean_username(username);
-  auto resolved_username = resolved_usernames_.get(cleaned_username);
-  if (resolved_username.dialog_id.is_valid()) {
-    return resolved_username.dialog_id;
-  }
-
-  return inaccessible_resolved_usernames_.get(cleaned_username);
-}
-
-DialogId DialogManager::resolve_dialog_username(const string &username, Promise<Unit> &promise) {
-  auto resolved_username = resolved_usernames_.get(username);
-  if (resolved_username.dialog_id.is_valid()) {
-    if (resolved_username.expires_at < Time::now()) {
-      send_resolve_dialog_username_query(username, Promise<Unit>());
-    }
-    return resolved_username.dialog_id;
-  } else {
-    auto dialog_id = inaccessible_resolved_usernames_.get(username);
-    if (!dialog_id.is_valid()) {
-      send_resolve_dialog_username_query(username, std::move(promise));
-    }
-    return dialog_id;
-  }
-}
-
-DialogId DialogManager::search_public_dialog(const string &username_to_search, bool force, Promise<Unit> &&promise) {
-  string username = clean_username(username_to_search);
-  if (username[0] == '@') {
-    username = username.substr(1);
-  }
-  if (username.empty()) {
-    promise.set_error(Status::Error(200, "Username is invalid"));
-    return DialogId();
-  }
-
-  auto dialog_id = resolve_dialog_username(username, promise);
-  if (!dialog_id.is_valid()) {
-    return DialogId();
-  }
-
-  if (have_input_peer(dialog_id, false, AccessRights::Read)) {
-    if (!force && reload_voice_chat_on_search_usernames_.count(username)) {
-      reload_voice_chat_on_search_usernames_.erase(username);
-      if (dialog_id.get_type() == DialogType::Channel) {
-        td_->chat_manager_->reload_channel_full(dialog_id.get_channel_id(), std::move(promise), "search_public_dialog");
-        return DialogId();
-      }
-    }
-
-    td_->messages_manager_->create_dialog(dialog_id, force, std::move(promise));
-    return dialog_id;
-  }
-
-  if (force || dialog_id.get_type() != DialogType::User) {  // bot username may be known despite there is no access_hash
-    force_create_dialog(dialog_id, "search_public_dialog", true);
-    promise.set_value(Unit());
-    return dialog_id;
-  }
-
-  send_resolve_dialog_username_query(username, std::move(promise));
-  return DialogId();
-}
-
-void DialogManager::reload_voice_chat_on_search(const string &username) {
-  if (!td_->auth_manager_->is_authorized()) {
-    return;
-  }
-
-  auto cleaned_username = clean_username(username);
-  if (!cleaned_username.empty()) {
-    reload_voice_chat_on_search_usernames_.insert(cleaned_username);
-  }
-}
-
-void DialogManager::drop_username(const string &username) {
-  auto cleaned_username = clean_username(username);
-  if (cleaned_username.empty()) {
-    return;
-  }
-
-  inaccessible_resolved_usernames_.erase(cleaned_username);
-
-  auto resolved_username = resolved_usernames_.get(cleaned_username);
-  if (resolved_username.dialog_id.is_valid()) {
-    auto dialog_id = resolved_username.dialog_id;
-    if (have_input_peer(dialog_id, false, AccessRights::Read)) {
-      reload_dialog_info_full(dialog_id, "drop_username");
-    }
-
-    resolved_usernames_.erase(cleaned_username);
-  }
-}
-
-vector<DialogId> DialogManager::search_public_dialogs(const string &query, Promise<Unit> &&promise) {
-  LOG(INFO) << "Search public chats with query = \"" << query << '"';
-
-  auto query_length = utf8_length(query);
-  if (query_length < MIN_SEARCH_PUBLIC_DIALOG_PREFIX_LEN ||
-      (query_length == MIN_SEARCH_PUBLIC_DIALOG_PREFIX_LEN && query[0] == '@')) {
-    string username = clean_username(query);
-    if (username[0] == '@') {
-      username = username.substr(1);
-    }
-
-    for (auto &short_username : get_valid_short_usernames()) {
-      if (2 * username.size() > short_username.size() && begins_with(short_username, username)) {
-        username = short_username.str();
-        auto dialog_id = resolve_dialog_username(username, promise);
-        if (!dialog_id.is_valid()) {
-          return {};
-        }
-
-        force_create_dialog(dialog_id, "search_public_dialogs");
-
-        if (td_->messages_manager_->can_add_dialog_to_filter(dialog_id).is_error() ||
-            (dialog_id.get_type() == DialogType::User &&
-             td_->user_manager_->is_user_contact(dialog_id.get_user_id()))) {
-          continue;
-        }
-
-        promise.set_value(Unit());
-        return {dialog_id};
-      }
-    }
-    promise.set_value(Unit());
-    return {};
-  }
-
-  auto it = found_public_dialogs_.find(query);
-  if (it != found_public_dialogs_.end()) {
-    promise.set_value(Unit());
-    return it->second;
-  }
-
-  send_search_public_dialogs_query(query, std::move(promise));
-  return {};
-}
-
-vector<DialogId> DialogManager::search_dialogs_on_server(const string &query, int32 limit, Promise<Unit> &&promise) {
-  LOG(INFO) << "Search chats on server with query \"" << query << "\" and limit " << limit;
-
-  if (limit < 0) {
-    promise.set_error(Status::Error(400, "Limit must be non-negative"));
-    return {};
-  }
-  if (limit > MAX_GET_DIALOGS) {
-    limit = MAX_GET_DIALOGS;
-  }
-
-  if (query.empty()) {
-    promise.set_value(Unit());
-    return {};
-  }
-
-  auto it = found_on_server_dialogs_.find(query);
-  if (it != found_on_server_dialogs_.end()) {
-    promise.set_value(Unit());
-    return td_->messages_manager_->sort_dialogs_by_order(it->second, limit);
-  }
-
-  send_search_public_dialogs_query(query, std::move(promise));
-  return {};
-}
-
-void DialogManager::send_search_public_dialogs_query(const string &query, Promise<Unit> &&promise) {
-  CHECK(!query.empty());
-  auto &promises = search_public_dialogs_queries_[query];
-  promises.push_back(std::move(promise));
-  if (promises.size() != 1) {
-    // query has already been sent, just wait for the result
-    return;
-  }
-
-  td_->create_handler<SearchPublicDialogsQuery>()->send(query);
-}
-
-void DialogManager::on_get_public_dialogs_search_result(const string &query,
-                                                        vector<tl_object_ptr<telegram_api::Peer>> &&my_peers,
-                                                        vector<tl_object_ptr<telegram_api::Peer>> &&peers) {
-  auto it = search_public_dialogs_queries_.find(query);
-  CHECK(it != search_public_dialogs_queries_.end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  search_public_dialogs_queries_.erase(it);
-
-  CHECK(!query.empty());
-  found_public_dialogs_[query] = get_peers_dialog_ids(std::move(peers));
-  found_on_server_dialogs_[query] = get_peers_dialog_ids(std::move(my_peers));
-
-  set_promises(promises);
-}
-
-void DialogManager::on_failed_public_dialogs_search(const string &query, Status &&error) {
-  auto it = search_public_dialogs_queries_.find(query);
-  CHECK(it != search_public_dialogs_queries_.end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  search_public_dialogs_queries_.erase(it);
-
-  found_public_dialogs_[query];     // negative cache
-  found_on_server_dialogs_[query];  // negative cache
-
-  fail_promises(promises, std::move(error));
-}
-
-void DialogManager::reget_peer_settings(DialogId dialog_id) {
-  if (!have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return;
-  }
-
-  td_->create_handler<GetPeerSettingsQuery>()->send(dialog_id);
-}
-
-class DialogManager::ReorderPinnedDialogsOnServerLogEvent {
- public:
-  FolderId folder_id_;
-  vector<DialogId> dialog_ids_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(folder_id_, storer);
-    td::store(dialog_ids_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::AddFolders)) {
-      td::parse(folder_id_, parser);
-    } else {
-      folder_id_ = FolderId();
-    }
-    td::parse(dialog_ids_, parser);
-  }
-};
-
-uint64 DialogManager::save_reorder_pinned_dialogs_on_server_log_event(FolderId folder_id,
-                                                                      const vector<DialogId> &dialog_ids) {
-  ReorderPinnedDialogsOnServerLogEvent log_event{folder_id, dialog_ids};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ReorderPinnedDialogsOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void DialogManager::reorder_pinned_dialogs_on_server(FolderId folder_id, const vector<DialogId> &dialog_ids,
-                                                     uint64 log_event_id) {
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_reorder_pinned_dialogs_on_server_log_event(folder_id, dialog_ids);
-  }
-
-  td_->create_handler<ReorderPinnedDialogsQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(folder_id, dialog_ids);
-}
-
-class DialogManager::ToggleDialogReportSpamStateOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  bool is_spam_dialog_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(is_spam_dialog_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-    td::parse(is_spam_dialog_, parser);
-  }
-};
-
-uint64 DialogManager::save_toggle_dialog_report_spam_state_on_server_log_event(DialogId dialog_id,
-                                                                               bool is_spam_dialog) {
-  ToggleDialogReportSpamStateOnServerLogEvent log_event{dialog_id, is_spam_dialog};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ToggleDialogReportSpamStateOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void DialogManager::toggle_dialog_report_spam_state_on_server(DialogId dialog_id, bool is_spam_dialog,
-                                                              uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_toggle_dialog_report_spam_state_on_server_log_event(dialog_id, is_spam_dialog);
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      return td_->create_handler<UpdatePeerSettingsQuery>(std::move(promise))->send(dialog_id, is_spam_dialog);
-    case DialogType::SecretChat:
-      if (is_spam_dialog) {
-        return td_->create_handler<ReportEncryptedSpamQuery>(std::move(promise))->send(dialog_id);
-      } else {
-        auto user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-        if (!user_id.is_valid()) {
-          return promise.set_error(Status::Error(400, "Peer user not found"));
-        }
-        return td_->create_handler<UpdatePeerSettingsQuery>(std::move(promise))->send(DialogId(user_id), false);
-      }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return;
-  }
-}
-
-void DialogManager::get_blocked_dialogs(const td_api::object_ptr<td_api::BlockList> &block_list, int32 offset,
-                                        int32 limit, Promise<td_api::object_ptr<td_api::messageSenders>> &&promise) {
-  if (offset < 0) {
-    return promise.set_error(Status::Error(400, "Parameter offset must be non-negative"));
-  }
-
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-
-  auto block_list_id = BlockListId(block_list);
-  if (!block_list_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Block list must be non-empty"));
-  }
-
-  td_->create_handler<GetBlockedDialogsQuery>(std::move(promise))->send(block_list_id, offset, limit);
-}
-
-void DialogManager::on_get_blocked_dialogs(int32 offset, int32 limit, int32 total_count,
-                                           vector<telegram_api::object_ptr<telegram_api::peerBlocked>> &&blocked_peers,
-                                           Promise<td_api::object_ptr<td_api::messageSenders>> &&promise) {
-  LOG(INFO) << "Receive " << blocked_peers.size() << " blocked chats from offset " << offset << " out of "
-            << total_count;
-  auto peers =
-      transform(std::move(blocked_peers), [](telegram_api::object_ptr<telegram_api::peerBlocked> &&blocked_peer) {
-        return std::move(blocked_peer->peer_id_);
-      });
-  auto dialog_ids = get_message_sender_dialog_ids(td_, std::move(peers));
-  if (!dialog_ids.empty() && offset + dialog_ids.size() > static_cast<size_t>(total_count)) {
-    LOG(ERROR) << "Fix total count of blocked chats from " << total_count << " to " << offset + dialog_ids.size();
-    total_count = offset + narrow_cast<int32>(dialog_ids.size());
-  }
-
-  auto senders = transform(dialog_ids, [td = td_](DialogId dialog_id) {
-    return get_message_sender_object(td, dialog_id, "on_get_blocked_dialogs");
-  });
-  promise.set_value(td_api::make_object<td_api::messageSenders>(total_count, std::move(senders)));
-}
-
-void DialogManager::set_dialog_available_reactions_on_server(DialogId dialog_id,
-                                                             const ChatReactions &available_reactions,
-                                                             Promise<Unit> &&promise) {
-  td_->create_handler<SetChatAvailableReactionsQuery>(std::move(promise))
-      ->send(dialog_id, std::move(available_reactions));
-}
-
-void DialogManager::set_dialog_default_send_as_on_server(DialogId dialog_id, DialogId send_as_dialog_id,
-                                                         Promise<Unit> &&promise) {
-  td_->create_handler<SaveDefaultSendAsQuery>(std::move(promise))->send(dialog_id, send_as_dialog_id);
-}
-
-void DialogManager::set_dialog_folder_id_on_server(DialogId dialog_id, FolderId folder_id, Promise<Unit> &&promise) {
-  // TODO do not send two queries simultaneously or use InvokeAfter
-  td_->create_handler<EditPeerFoldersQuery>(std::move(promise))->send(dialog_id, folder_id);
-}
-
-void DialogManager::set_dialog_message_ttl_on_server(DialogId dialog_id, int32 ttl, Promise<Unit> &&promise) {
-  td_->create_handler<SetHistoryTtlQuery>(std::move(promise))->send(dialog_id, ttl);
-}
-
-void DialogManager::set_dialog_theme_on_server(DialogId dialog_id, const string &theme_name, Promise<Unit> &&promise) {
-  td_->create_handler<SetChatThemeQuery>(std::move(promise))->send(dialog_id, theme_name);
-}
-
-class DialogManager::ToggleDialogIsBlockedOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  bool is_blocked_;
-  bool is_blocked_for_stories_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_blocked_);
-    STORE_FLAG(is_blocked_for_stories_);
-    END_STORE_FLAGS();
-
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_blocked_);
-    PARSE_FLAG(is_blocked_for_stories_);
-    END_PARSE_FLAGS();
-
-    td::parse(dialog_id_, parser);
-  }
-};
-
-uint64 DialogManager::save_toggle_dialog_is_blocked_on_server_log_event(DialogId dialog_id, bool is_blocked,
-                                                                        bool is_blocked_for_stories) {
-  ToggleDialogIsBlockedOnServerLogEvent log_event{dialog_id, is_blocked, is_blocked_for_stories};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ToggleDialogIsBlockedOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void DialogManager::toggle_dialog_is_blocked_on_server(DialogId dialog_id, bool is_blocked, bool is_blocked_for_stories,
-                                                       uint64 log_event_id) {
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_toggle_dialog_is_blocked_on_server_log_event(dialog_id, is_blocked, is_blocked_for_stories);
-  }
-
-  td_->create_handler<ToggleDialogIsBlockedQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(dialog_id, is_blocked, is_blocked_for_stories);
-}
-
-class DialogManager::ToggleDialogPropertyOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  bool value_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(value_);
-    END_STORE_FLAGS();
-
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(value_);
-    END_PARSE_FLAGS();
-
-    td::parse(dialog_id_, parser);
-  }
-};
-
-uint64 DialogManager::save_toggle_dialog_is_marked_as_unread_on_server_log_event(DialogId dialog_id,
-                                                                                 bool is_marked_as_unread) {
-  ToggleDialogPropertyOnServerLogEvent log_event{dialog_id, is_marked_as_unread};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ToggleDialogIsMarkedAsUnreadOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void DialogManager::toggle_dialog_is_marked_as_unread_on_server(DialogId dialog_id, bool is_marked_as_unread,
-                                                                uint64 log_event_id) {
-  if (log_event_id == 0 && dialog_id.get_type() == DialogType::SecretChat) {
-    // don't even create new binlog events
-    return;
-  }
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_toggle_dialog_is_marked_as_unread_on_server_log_event(dialog_id, is_marked_as_unread);
-  }
-
-  td_->create_handler<ToggleDialogUnreadMarkQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(dialog_id, is_marked_as_unread);
-}
-
-uint64 DialogManager::save_toggle_dialog_is_pinned_on_server_log_event(DialogId dialog_id, bool is_pinned) {
-  ToggleDialogPropertyOnServerLogEvent log_event{dialog_id, is_pinned};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ToggleDialogIsPinnedOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void DialogManager::toggle_dialog_is_pinned_on_server(DialogId dialog_id, bool is_pinned, uint64 log_event_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (log_event_id == 0 && dialog_id.get_type() == DialogType::SecretChat) {
-    // don't even create new binlog events
-    return;
-  }
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_toggle_dialog_is_pinned_on_server_log_event(dialog_id, is_pinned);
-  }
-
-  td_->create_handler<ToggleDialogPinQuery>(get_erase_log_event_promise(log_event_id))->send(dialog_id, is_pinned);
-}
-
-uint64 DialogManager::save_toggle_dialog_is_translatable_on_server_log_event(DialogId dialog_id, bool is_translatable) {
-  ToggleDialogPropertyOnServerLogEvent log_event{dialog_id, is_translatable};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ToggleDialogIsTranslatableOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void DialogManager::toggle_dialog_is_translatable_on_server(DialogId dialog_id, bool is_translatable,
-                                                            uint64 log_event_id) {
-  if (log_event_id == 0 && dialog_id.get_type() == DialogType::SecretChat) {
-    // don't even create new binlog events
-    return;
-  }
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_toggle_dialog_is_translatable_on_server_log_event(dialog_id, is_translatable);
-  }
-
-  td_->create_handler<ToggleDialogTranslationsQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(dialog_id, is_translatable);
-}
-
-uint64 DialogManager::save_toggle_dialog_view_as_messages_on_server_log_event(DialogId dialog_id,
-                                                                              bool view_as_messages) {
-  ToggleDialogPropertyOnServerLogEvent log_event{dialog_id, view_as_messages};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ToggleDialogViewAsMessagesOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void DialogManager::toggle_dialog_view_as_messages_on_server(DialogId dialog_id, bool view_as_messages,
-                                                             uint64 log_event_id) {
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_toggle_dialog_view_as_messages_on_server_log_event(dialog_id, view_as_messages);
-  }
-
-  td_->create_handler<ToggleViewForumAsMessagesQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(dialog_id, view_as_messages);
-}
-
-void DialogManager::on_binlog_events(vector<BinlogEvent> &&events) {
-  if (G()->close_flag()) {
-    return;
-  }
-  bool have_old_message_database = G()->use_message_database() && !G()->td_db()->was_dialog_db_created();
-  for (auto &event : events) {
-    CHECK(event.id_ != 0);
-    switch (event.type_) {
-      case LogEvent::HandlerType::ReorderPinnedDialogsOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ReorderPinnedDialogsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        vector<DialogId> dialog_ids;
-        for (auto &dialog_id : log_event.dialog_ids_) {
-          if (have_dialog_force(dialog_id, "ReorderPinnedDialogsOnServerLogEvent") &&
-              have_input_peer(dialog_id, true, AccessRights::Read)) {
-            dialog_ids.push_back(dialog_id);
-          }
-        }
-        if (dialog_ids.empty()) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        reorder_pinned_dialogs_on_server(log_event.folder_id_, dialog_ids, event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::ToggleDialogIsBlockedOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ToggleDialogIsBlockedOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (dialog_id.get_type() == DialogType::SecretChat ||
-            !have_dialog_info_force(dialog_id, "ToggleDialogIsBlockedOnServer") ||
-            !have_input_peer(dialog_id, true, AccessRights::Know)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        toggle_dialog_is_blocked_on_server(dialog_id, log_event.is_blocked_, log_event.is_blocked_for_stories_,
-                                           event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::ToggleDialogIsMarkedAsUnreadOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ToggleDialogPropertyOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!have_dialog_force(dialog_id, "ToggleDialogIsMarkedAsUnreadOnServer") ||
-            !have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        toggle_dialog_is_marked_as_unread_on_server(dialog_id, log_event.value_, event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::ToggleDialogIsPinnedOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ToggleDialogPropertyOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!have_dialog_force(dialog_id, "ToggleDialogIsPinnedOnServer") ||
-            !have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        toggle_dialog_is_pinned_on_server(dialog_id, log_event.value_, event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::ToggleDialogIsTranslatableOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ToggleDialogPropertyOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!have_dialog_force(dialog_id, "ToggleDialogIsTranslatableOnServer") ||
-            !have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        toggle_dialog_is_translatable_on_server(dialog_id, log_event.value_, event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::ToggleDialogReportSpamStateOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ToggleDialogReportSpamStateOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!have_dialog_force(dialog_id, "ToggleDialogReportSpamStateOnServer") ||
-            !have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        toggle_dialog_report_spam_state_on_server(dialog_id, log_event.is_spam_dialog_, event.id_, Promise<Unit>());
-        break;
-      }
-      case LogEvent::HandlerType::ToggleDialogViewAsMessagesOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ToggleDialogPropertyOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!have_dialog_force(dialog_id, "ToggleDialogViewAsMessagesOnServer") ||
-            !have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        toggle_dialog_view_as_messages_on_server(dialog_id, log_event.value_, event.id_);
-        break;
-      }
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogManager.h b/third-party/td/td/td/telegram/DialogManager.h
deleted file mode 100644
index af14ecb53a..0000000000
--- a/third-party/td/td/td/telegram/DialogManager.h
+++ /dev/null
@@ -1,395 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/InputDialogId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/NotificationSettingsScope.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/RecentDialogList.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-struct BinlogEvent;
-struct ChatReactions;
-class EmojiStatus;
-class ReportReason;
-class Td;
-class Usernames;
-
-class DialogManager final : public Actor {
- public:
-  DialogManager(Td *td, ActorShared<> parent);
-  DialogManager(const DialogManager &) = delete;
-  DialogManager &operator=(const DialogManager &) = delete;
-  DialogManager(DialogManager &&) = delete;
-  DialogManager &operator=(DialogManager &&) = delete;
-  ~DialogManager() final;
-
-  DialogId get_my_dialog_id() const;
-
-  InputDialogId get_input_dialog_id(DialogId dialog_id) const;
-
-  tl_object_ptr<telegram_api::InputPeer> get_input_peer(DialogId dialog_id, AccessRights access_rights) const;
-
-  static tl_object_ptr<telegram_api::InputPeer> get_input_peer_force(DialogId dialog_id);
-
-  vector<tl_object_ptr<telegram_api::InputPeer>> get_input_peers(const vector<DialogId> &dialog_ids,
-                                                                 AccessRights access_rights) const;
-
-  tl_object_ptr<telegram_api::InputDialogPeer> get_input_dialog_peer(DialogId dialog_id,
-                                                                     AccessRights access_rights) const;
-
-  vector<tl_object_ptr<telegram_api::InputDialogPeer>> get_input_dialog_peers(const vector<DialogId> &dialog_ids,
-                                                                              AccessRights access_rights) const;
-
-  tl_object_ptr<telegram_api::inputEncryptedChat> get_input_encrypted_chat(DialogId dialog_id,
-                                                                           AccessRights access_rights) const;
-
-  Status check_dialog_access(DialogId dialog_id, bool allow_secret_chats, AccessRights access_rights,
-                             const char *source) const;
-
-  Status check_dialog_access_in_memory(DialogId dialog_id, bool allow_secret_chats, AccessRights access_rights) const;
-
-  bool have_input_peer(DialogId dialog_id, bool allow_secret_chats, AccessRights access_rights) const;
-
-  bool have_dialog_force(DialogId dialog_id, const char *source) const;
-
-  void force_create_dialog(DialogId dialog_id, const char *source, bool expect_no_access = false,
-                           bool force_update_dialog_pos = false);
-
-  vector<DialogId> get_peers_dialog_ids(vector<telegram_api::object_ptr<telegram_api::Peer>> &&peers,
-                                        bool expect_no_access = false);
-
-  bool have_dialog_info(DialogId dialog_id) const;
-
-  bool have_dialog_info_force(DialogId dialog_id, const char *source) const;
-
-  void reload_dialog_info(DialogId dialog_id, Promise<Unit> &&promise);
-
-  bool is_dialog_info_received_from_server(DialogId dialog_id) const;
-
-  void get_dialog_info_full(DialogId dialog_id, Promise<Unit> &&promise, const char *source);
-
-  void reload_dialog_info_full(DialogId dialog_id, const char *source);
-
-  void on_dialog_info_full_invalidated(DialogId dialog_id);
-
-  int64 get_chat_id_object(DialogId dialog_id, const char *source) const;
-
-  vector<int64> get_chat_ids_object(const vector<DialogId> &dialog_ids, const char *source) const;
-
-  td_api::object_ptr<td_api::chats> get_chats_object(int32 total_count, const vector<DialogId> &dialog_ids,
-                                                     const char *source) const;
-
-  td_api::object_ptr<td_api::chats> get_chats_object(const std::pair<int32, vector<DialogId>> &dialog_ids,
-                                                     const char *source) const;
-
-  td_api::object_ptr<td_api::ChatType> get_chat_type_object(DialogId dialog_id, const char *source) const;
-
-  NotificationSettingsScope get_dialog_notification_setting_scope(DialogId dialog_id) const;
-
-  void migrate_dialog_to_megagroup(DialogId dialog_id, Promise<td_api::object_ptr<td_api::chat>> &&promise);
-
-  void on_dialog_opened(DialogId dialog_id);
-
-  void on_dialog_deleted(DialogId dialog_id);
-
-  Status add_recently_found_dialog(DialogId dialog_id) TD_WARN_UNUSED_RESULT;
-
-  Status remove_recently_found_dialog(DialogId dialog_id) TD_WARN_UNUSED_RESULT;
-
-  void clear_recently_found_dialogs();
-
-  std::pair<int32, vector<DialogId>> search_recently_found_dialogs(const string &query, int32 limit,
-                                                                   Promise<Unit> &&promise);
-
-  std::pair<int32, vector<DialogId>> get_recently_opened_dialogs(int32 limit, Promise<Unit> &&promise);
-
-  bool is_anonymous_administrator(DialogId dialog_id, string *author_signature) const;
-
-  bool is_group_dialog(DialogId dialog_id) const;
-
-  bool is_forum_channel(DialogId dialog_id) const;
-
-  bool is_broadcast_channel(DialogId dialog_id) const;
-
-  bool on_get_dialog_error(DialogId dialog_id, const Status &status, const char *source);
-
-  void delete_dialog(DialogId dialog_id, Promise<Unit> &&promise);
-
-  string get_dialog_title(DialogId dialog_id) const;
-
-  const DialogPhoto *get_dialog_photo(DialogId dialog_id) const;
-
-  int32 get_dialog_accent_color_id_object(DialogId dialog_id) const;
-
-  CustomEmojiId get_dialog_background_custom_emoji_id(DialogId dialog_id) const;
-
-  int32 get_dialog_profile_accent_color_id_object(DialogId dialog_id) const;
-
-  CustomEmojiId get_dialog_profile_background_custom_emoji_id(DialogId dialog_id) const;
-
-  RestrictedRights get_dialog_default_permissions(DialogId dialog_id) const;
-
-  td_api::object_ptr<td_api::emojiStatus> get_dialog_emoji_status_object(DialogId dialog_id) const;
-
-  string get_dialog_about(DialogId dialog_id);
-
-  string get_dialog_search_text(DialogId dialog_id) const;
-
-  bool get_dialog_has_protected_content(DialogId dialog_id) const;
-
-  bool is_dialog_action_unneeded(DialogId dialog_id) const;
-
-  void set_dialog_title(DialogId dialog_id, const string &title, Promise<Unit> &&promise);
-
-  void set_dialog_photo(DialogId dialog_id, const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                        Promise<Unit> &&promise);
-
-  void set_dialog_accent_color(DialogId dialog_id, AccentColorId accent_color_id,
-                               CustomEmojiId background_custom_emoji_id, Promise<Unit> &&promise);
-
-  void set_dialog_profile_accent_color(DialogId dialog_id, AccentColorId profile_accent_color_id,
-                                       CustomEmojiId profile_background_custom_emoji_id, Promise<Unit> &&promise);
-
-  void set_dialog_permissions(DialogId dialog_id, const td_api::object_ptr<td_api::chatPermissions> &permissions,
-                              Promise<Unit> &&promise);
-
-  void set_dialog_emoji_status(DialogId dialog_id, const unique_ptr<EmojiStatus> &emoji_status,
-                               Promise<Unit> &&promise);
-
-  void toggle_dialog_has_protected_content(DialogId dialog_id, bool has_protected_content, Promise<Unit> &&promise);
-
-  void set_dialog_description(DialogId dialog_id, const string &description, Promise<Unit> &&promise);
-
-  void set_dialog_location(DialogId dialog_id, const DialogLocation &location, Promise<Unit> &&promise);
-
-  void load_dialog_marks_as_unread();
-
-  bool can_report_dialog(DialogId dialog_id) const;
-
-  void report_dialog(DialogId dialog_id, const string &option_id, const vector<MessageId> &message_ids,
-                     const string &text, Promise<td_api::object_ptr<td_api::ReportChatResult>> &&promise);
-
-  void report_dialog_photo(DialogId dialog_id, FileId file_id, ReportReason &&reason, Promise<Unit> &&promise);
-
-  Status can_pin_messages(DialogId dialog_id) const;
-
-  bool can_use_premium_custom_emoji_in_dialog(DialogId dialog_id) const;
-
-  bool is_dialog_removed_from_dialog_list(DialogId dialog_id) const;
-
-  void upload_dialog_photo(DialogId dialog_id, FileUploadId file_upload_id, bool is_animation,
-                           double main_frame_timestamp, bool is_reupload, Promise<Unit> &&promise,
-                           vector<int> bad_parts = {});
-
-  void on_update_dialog_bot_commands(DialogId dialog_id, UserId bot_user_id,
-                                     vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands);
-
-  void on_dialog_usernames_updated(DialogId dialog_id, const Usernames &old_usernames, const Usernames &new_usernames);
-
-  void on_dialog_usernames_received(DialogId dialog_id, const Usernames &usernames, bool from_database);
-
-  enum class CheckDialogUsernameResult : uint8 {
-    Ok,
-    Invalid,
-    Occupied,
-    Purchasable,
-    PublicDialogsTooMany,
-    PublicGroupsUnavailable
-  };
-  void check_dialog_username(DialogId dialog_id, const string &username, Promise<CheckDialogUsernameResult> &&promise);
-
-  static td_api::object_ptr<td_api::CheckChatUsernameResult> get_check_chat_username_result_object(
-      CheckDialogUsernameResult result);
-
-  void resolve_dialog(const string &username, ChannelId channel_id, Promise<DialogId> promise);
-
-  DialogId get_resolved_dialog_by_username(const string &username) const;
-
-  DialogId resolve_dialog_username(const string &username, Promise<Unit> &promise);
-
-  DialogId search_public_dialog(const string &username_to_search, bool force, Promise<Unit> &&promise);
-
-  void on_get_public_dialogs_search_result(const string &query,
-                                           vector<telegram_api::object_ptr<telegram_api::Peer>> &&my_peers,
-                                           vector<telegram_api::object_ptr<telegram_api::Peer>> &&peers);
-
-  void on_failed_public_dialogs_search(const string &query, Status &&error);
-
-  vector<DialogId> search_public_dialogs(const string &query, Promise<Unit> &&promise);
-
-  vector<DialogId> search_dialogs_on_server(const string &query, int32 limit, Promise<Unit> &&promise);
-
-  void reload_voice_chat_on_search(const string &username);
-
-  void reget_peer_settings(DialogId dialog_id);
-
-  void toggle_dialog_report_spam_state_on_server(DialogId dialog_id, bool is_spam_dialog, uint64 log_event_id,
-                                                 Promise<Unit> &&promise);
-
-  void get_blocked_dialogs(const td_api::object_ptr<td_api::BlockList> &block_list, int32 offset, int32 limit,
-                           Promise<td_api::object_ptr<td_api::messageSenders>> &&promise);
-
-  void on_get_blocked_dialogs(int32 offset, int32 limit, int32 total_count,
-                              vector<telegram_api::object_ptr<telegram_api::peerBlocked>> &&blocked_peers,
-                              Promise<td_api::object_ptr<td_api::messageSenders>> &&promise);
-
-  void reorder_pinned_dialogs_on_server(FolderId folder_id, const vector<DialogId> &dialog_ids, uint64 log_event_id);
-
-  void set_dialog_available_reactions_on_server(DialogId dialog_id, const ChatReactions &available_reactions,
-                                                Promise<Unit> &&promise);
-
-  void set_dialog_default_send_as_on_server(DialogId dialog_id, DialogId send_as_dialog_id, Promise<Unit> &&promise);
-
-  void set_dialog_folder_id_on_server(DialogId dialog_id, FolderId folder_id, Promise<Unit> &&promise);
-
-  void set_dialog_message_ttl_on_server(DialogId dialog_id, int32 ttl, Promise<Unit> &&promise);
-
-  void set_dialog_theme_on_server(DialogId dialog_id, const string &theme_name, Promise<Unit> &&promise);
-
-  void toggle_dialog_is_blocked_on_server(DialogId dialog_id, bool is_blocked, bool is_blocked_for_stories,
-                                          uint64 log_event_id);
-
-  void toggle_dialog_is_marked_as_unread_on_server(DialogId dialog_id, bool is_marked_as_unread, uint64 log_event_id);
-
-  void toggle_dialog_is_pinned_on_server(DialogId dialog_id, bool is_pinned, uint64 log_event_id);
-
-  void toggle_dialog_is_translatable_on_server(DialogId dialog_id, bool is_translatable, uint64 log_event_id);
-
-  void toggle_dialog_view_as_messages_on_server(DialogId dialog_id, bool view_as_messages, uint64 log_event_id);
-
-  void on_binlog_events(vector<BinlogEvent> &&events);
-
- private:
-  static constexpr size_t MAX_TITLE_LENGTH = 128;                  // server-side limit for chat title
-  static constexpr int32 MIN_SEARCH_PUBLIC_DIALOG_PREFIX_LEN = 4;  // server-side limit
-  static constexpr int32 MAX_GET_DIALOGS = 100;                    // server-side limit
-  static constexpr int32 MAX_RECENT_DIALOGS = 50;                  // some reasonable value
-
-  static constexpr int32 USERNAME_CACHE_EXPIRE_TIME = 86400;
-
-  void hangup() final;
-
-  void tear_down() final;
-
-  void on_migrate_chat_to_megagroup(ChatId chat_id, Promise<td_api::object_ptr<td_api::chat>> &&promise);
-
-  void on_upload_dialog_photo(FileUploadId file_upload_id,
-                              telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_dialog_photo_error(FileUploadId file_upload_id, Status status);
-
-  void send_edit_dialog_photo_query(DialogId dialog_id, FileUploadId file_upload_id,
-                                    telegram_api::object_ptr<telegram_api::InputChatPhoto> &&input_chat_photo,
-                                    Promise<Unit> &&promise);
-
-  void send_resolve_dialog_username_query(const string &username, Promise<Unit> &&promise);
-
-  void on_resolved_username(const string &username, Result<DialogId> r_dialog_id);
-
-  void drop_username(const string &username);
-
-  void on_resolve_dialog(const string &username, ChannelId channel_id, Promise<DialogId> &&promise);
-
-  void send_search_public_dialogs_query(const string &query, Promise<Unit> &&promise);
-
-  static uint64 save_reorder_pinned_dialogs_on_server_log_event(FolderId folder_id, const vector<DialogId> &dialog_ids);
-
-  static uint64 save_toggle_dialog_is_blocked_on_server_log_event(DialogId dialog_id, bool is_blocked,
-                                                                  bool is_blocked_for_stories);
-
-  static uint64 save_toggle_dialog_is_marked_as_unread_on_server_log_event(DialogId dialog_id,
-                                                                           bool is_marked_as_unread);
-
-  static uint64 save_toggle_dialog_is_pinned_on_server_log_event(DialogId dialog_id, bool is_pinned);
-
-  static uint64 save_toggle_dialog_is_translatable_on_server_log_event(DialogId dialog_id, bool is_translatable);
-
-  static uint64 save_toggle_dialog_report_spam_state_on_server_log_event(DialogId dialog_id, bool is_spam_dialog);
-
-  static uint64 save_toggle_dialog_view_as_messages_on_server_log_event(DialogId dialog_id, bool view_as_messages);
-
-  class ReorderPinnedDialogsOnServerLogEvent;
-  class ToggleDialogIsBlockedOnServerLogEvent;
-  class ToggleDialogPropertyOnServerLogEvent;
-  class ToggleDialogReportSpamStateOnServerLogEvent;
-
-  class UploadDialogPhotoCallback;
-  std::shared_ptr<UploadDialogPhotoCallback> upload_dialog_photo_callback_;
-
-  struct UploadedDialogPhotoInfo {
-    DialogId dialog_id;
-    double main_frame_timestamp;
-    bool is_animation;
-    bool is_reupload;
-    Promise<Unit> promise;
-
-    UploadedDialogPhotoInfo(DialogId dialog_id, double main_frame_timestamp, bool is_animation, bool is_reupload,
-                            Promise<Unit> promise)
-        : dialog_id(dialog_id)
-        , main_frame_timestamp(main_frame_timestamp)
-        , is_animation(is_animation)
-        , is_reupload(is_reupload)
-        , promise(std::move(promise)) {
-    }
-  };
-  FlatHashMap<FileUploadId, UploadedDialogPhotoInfo, FileUploadIdHash> being_uploaded_dialog_photos_;
-
-  struct ResolvedUsername {
-    DialogId dialog_id;
-    double expires_at = 0.0;
-
-    ResolvedUsername() = default;
-    ResolvedUsername(DialogId dialog_id, double expires_at) : dialog_id(dialog_id), expires_at(expires_at) {
-    }
-  };
-  WaitFreeHashMap<string, ResolvedUsername> resolved_usernames_;
-  WaitFreeHashMap<string, DialogId> inaccessible_resolved_usernames_;
-  FlatHashSet<string> reload_voice_chat_on_search_usernames_;
-
-  FlatHashMap<string, vector<Promise<Unit>>> resolve_dialog_username_queries_;
-
-  FlatHashMap<string, vector<Promise<Unit>>> search_public_dialogs_queries_;
-  FlatHashMap<string, vector<DialogId>> found_public_dialogs_;     // TODO time bound cache
-  FlatHashMap<string, vector<DialogId>> found_on_server_dialogs_;  // TODO time bound cache
-
-  RecentDialogList recently_found_dialogs_;
-  RecentDialogList recently_opened_dialogs_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogNotificationSettings.cpp b/third-party/td/td/td/telegram/DialogNotificationSettings.cpp
deleted file mode 100644
index 620c5b5c06..0000000000
--- a/third-party/td/td/td/telegram/DialogNotificationSettings.cpp
+++ /dev/null
@@ -1,221 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogNotificationSettings.h"
-
-#include "td/telegram/Global.h"
-
-#include <limits>
-
-namespace td {
-
-telegram_api::object_ptr<telegram_api::inputPeerNotifySettings>
-DialogNotificationSettings::get_input_peer_notify_settings() const {
-  int32 flags = 0;
-  if (!use_default_mute_until) {
-    flags |= telegram_api::inputPeerNotifySettings::MUTE_UNTIL_MASK;
-  }
-  if (sound != nullptr) {
-    flags |= telegram_api::inputPeerNotifySettings::SOUND_MASK;
-  }
-  if (!use_default_show_preview) {
-    flags |= telegram_api::inputPeerNotifySettings::SHOW_PREVIEWS_MASK;
-  }
-  if (!use_default_mute_stories) {
-    flags |= telegram_api::inputPeerNotifySettings::STORIES_MUTED_MASK;
-  }
-  if (story_sound != nullptr) {
-    flags |= telegram_api::inputPeerNotifySettings::STORIES_SOUND_MASK;
-  }
-  if (!use_default_hide_story_sender) {
-    flags |= telegram_api::inputPeerNotifySettings::STORIES_HIDE_SENDER_MASK;
-  }
-  if (silent_send_message) {
-    flags |= telegram_api::inputPeerNotifySettings::SILENT_MASK;
-  }
-  return telegram_api::make_object<telegram_api::inputPeerNotifySettings>(
-      flags, show_preview, silent_send_message, mute_until, get_input_notification_sound(sound), mute_stories,
-      hide_story_sender, get_input_notification_sound(story_sound));
-}
-
-DialogNotificationSettings DialogNotificationSettings::clone_for_secret_chat() const {
-  auto notification_settings = DialogNotificationSettings(
-      use_default_mute_until, mute_until, dup_notification_sound(sound), true /*use_default_show_preview*/,
-      false /*show_preview*/, use_default_mute_stories, mute_stories, dup_notification_sound(story_sound),
-      use_default_hide_story_sender, hide_story_sender, silent_send_message, true, false, true, false);
-  notification_settings.is_secret_chat_show_preview_fixed = true;
-  return notification_settings;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogNotificationSettings &notification_settings) {
-  return string_builder << "[" << notification_settings.mute_until << ", " << notification_settings.sound << ", "
-                        << notification_settings.show_preview << ", " << notification_settings.mute_stories << ", "
-                        << notification_settings.story_sound << ", " << notification_settings.hide_story_sender << ", "
-                        << notification_settings.silent_send_message << ", "
-                        << notification_settings.disable_pinned_message_notifications << ", "
-                        << notification_settings.disable_mention_notifications << ", "
-                        << notification_settings.use_default_mute_until << ", "
-                        << notification_settings.use_default_show_preview << ", "
-                        << notification_settings.use_default_mute_stories << ", "
-                        << notification_settings.use_default_hide_story_sender << ", "
-                        << notification_settings.use_default_disable_pinned_message_notifications << ", "
-                        << notification_settings.use_default_disable_mention_notifications << ", "
-                        << notification_settings.is_synchronized << "]";
-}
-
-td_api::object_ptr<td_api::chatNotificationSettings> get_chat_notification_settings_object(
-    const DialogNotificationSettings *notification_settings) {
-  CHECK(notification_settings != nullptr);
-  return td_api::make_object<td_api::chatNotificationSettings>(
-      notification_settings->use_default_mute_until, max(0, notification_settings->mute_until - G()->unix_time()),
-      is_notification_sound_default(notification_settings->sound),
-      get_notification_sound_ringtone_id(notification_settings->sound), notification_settings->use_default_show_preview,
-      notification_settings->show_preview, notification_settings->use_default_mute_stories,
-      notification_settings->mute_stories, is_notification_sound_default(notification_settings->story_sound),
-      get_notification_sound_ringtone_id(notification_settings->story_sound),
-      notification_settings->use_default_hide_story_sender, !notification_settings->hide_story_sender,
-      notification_settings->use_default_disable_pinned_message_notifications,
-      notification_settings->disable_pinned_message_notifications,
-      notification_settings->use_default_disable_mention_notifications,
-      notification_settings->disable_mention_notifications);
-}
-
-static int32 get_mute_until(int32 mute_for) {
-  if (mute_for <= 0) {
-    return 0;
-  }
-
-  const int32 MAX_PRECISE_MUTE_FOR = 366 * 86400;
-  int32 current_time = G()->unix_time();
-  if (mute_for > MAX_PRECISE_MUTE_FOR || mute_for >= std::numeric_limits<int32>::max() - current_time) {
-    return std::numeric_limits<int32>::max();
-  }
-  return mute_for + current_time;
-}
-
-Result<DialogNotificationSettings> get_dialog_notification_settings(
-    td_api::object_ptr<td_api::chatNotificationSettings> &&notification_settings,
-    const DialogNotificationSettings *old_settings) {
-  if (notification_settings == nullptr) {
-    return Status::Error(400, "New notification settings must be non-empty");
-  }
-
-  CHECK(old_settings != nullptr);
-
-  int32 mute_until =
-      notification_settings->use_default_mute_for_ ? 0 : get_mute_until(notification_settings->mute_for_);
-  auto notification_sound =
-      get_notification_sound(notification_settings->use_default_sound_, notification_settings->sound_id_);
-  if (is_notification_sound_default(old_settings->sound) && is_notification_sound_default(notification_sound)) {
-    notification_sound = dup_notification_sound(old_settings->sound);
-  }
-  auto story_notification_sound =
-      get_notification_sound(notification_settings->use_default_story_sound_, notification_settings->story_sound_id_);
-  if (is_notification_sound_default(old_settings->story_sound) &&
-      is_notification_sound_default(story_notification_sound)) {
-    story_notification_sound = dup_notification_sound(old_settings->story_sound);
-  }
-  return DialogNotificationSettings(
-      notification_settings->use_default_mute_for_, mute_until, std::move(notification_sound),
-      notification_settings->use_default_show_preview_, notification_settings->show_preview_,
-      notification_settings->use_default_mute_stories_, notification_settings->mute_stories_,
-      std::move(story_notification_sound), notification_settings->use_default_show_story_sender_,
-      !notification_settings->show_story_sender_, old_settings->silent_send_message,
-      notification_settings->use_default_disable_pinned_message_notifications_,
-      notification_settings->disable_pinned_message_notifications_,
-      notification_settings->use_default_disable_mention_notifications_,
-      notification_settings->disable_mention_notifications_);
-}
-
-DialogNotificationSettings get_dialog_notification_settings(tl_object_ptr<telegram_api::peerNotifySettings> &&settings,
-                                                            const DialogNotificationSettings *old_settings) {
-  bool old_use_default_disable_pinned_message_notifications = true;
-  bool old_disable_pinned_message_notifications = false;
-  bool old_use_default_disable_mention_notifications = true;
-  bool old_disable_mention_notifications = false;
-  if (old_settings != nullptr) {
-    old_use_default_disable_pinned_message_notifications =
-        old_settings->use_default_disable_pinned_message_notifications;
-    old_disable_pinned_message_notifications = old_settings->disable_pinned_message_notifications;
-    old_use_default_disable_mention_notifications = old_settings->use_default_disable_mention_notifications;
-    old_disable_mention_notifications = old_settings->disable_mention_notifications;
-  }
-
-  if (settings == nullptr) {
-    auto result = DialogNotificationSettings();
-    result.use_default_disable_pinned_message_notifications = old_use_default_disable_pinned_message_notifications;
-    result.disable_pinned_message_notifications = old_disable_pinned_message_notifications;
-    result.use_default_disable_mention_notifications = old_use_default_disable_mention_notifications;
-    result.disable_mention_notifications = old_disable_mention_notifications;
-    return result;
-  }
-
-  bool use_default_mute_until = (settings->flags_ & telegram_api::peerNotifySettings::MUTE_UNTIL_MASK) == 0;
-  bool use_default_show_preview = (settings->flags_ & telegram_api::peerNotifySettings::SHOW_PREVIEWS_MASK) == 0;
-  bool use_default_mute_stories = (settings->flags_ & telegram_api::peerNotifySettings::STORIES_MUTED_MASK) == 0;
-  bool use_default_hide_story_sender =
-      (settings->flags_ & telegram_api::peerNotifySettings::STORIES_HIDE_SENDER_MASK) == 0;
-  auto mute_until = use_default_mute_until || settings->mute_until_ <= G()->unix_time() ? 0 : settings->mute_until_;
-  bool silent_send_message = settings->silent_;
-  return {use_default_mute_until,
-          mute_until,
-          get_notification_sound(settings.get(), false),
-          use_default_show_preview,
-          settings->show_previews_,
-          use_default_mute_stories,
-          settings->stories_muted_,
-          get_notification_sound(settings.get(), true),
-          use_default_hide_story_sender,
-          settings->stories_hide_sender_,
-          silent_send_message,
-          old_use_default_disable_pinned_message_notifications,
-          old_disable_pinned_message_notifications,
-          old_use_default_disable_mention_notifications,
-          old_disable_mention_notifications};
-}
-
-bool are_default_dialog_notification_settings(const DialogNotificationSettings &settings, bool compare_sound) {
-  return settings.use_default_mute_until && (!compare_sound || is_notification_sound_default(settings.sound)) &&
-         settings.use_default_show_preview && settings.use_default_disable_pinned_message_notifications &&
-         settings.use_default_disable_mention_notifications;
-}
-
-bool are_default_story_notification_settings(const DialogNotificationSettings &settings) {
-  return settings.use_default_mute_stories && is_notification_sound_default(settings.story_sound) &&
-         settings.use_default_hide_story_sender;
-}
-
-NeedUpdateDialogNotificationSettings need_update_dialog_notification_settings(
-    const DialogNotificationSettings *current_settings, const DialogNotificationSettings &new_settings) {
-  NeedUpdateDialogNotificationSettings result;
-  result.need_update_server =
-      current_settings->mute_until != new_settings.mute_until ||
-      !are_equivalent_notification_sounds(current_settings->sound, new_settings.sound) ||
-      !are_equivalent_notification_sounds(current_settings->story_sound, new_settings.story_sound) ||
-      current_settings->show_preview != new_settings.show_preview ||
-      current_settings->mute_stories != new_settings.mute_stories ||
-      current_settings->hide_story_sender != new_settings.hide_story_sender ||
-      current_settings->use_default_mute_until != new_settings.use_default_mute_until ||
-      current_settings->use_default_show_preview != new_settings.use_default_show_preview ||
-      current_settings->use_default_mute_stories != new_settings.use_default_mute_stories ||
-      current_settings->use_default_hide_story_sender != new_settings.use_default_hide_story_sender;
-  result.need_update_local =
-      current_settings->use_default_disable_pinned_message_notifications !=
-          new_settings.use_default_disable_pinned_message_notifications ||
-      current_settings->disable_pinned_message_notifications != new_settings.disable_pinned_message_notifications ||
-      current_settings->use_default_disable_mention_notifications !=
-          new_settings.use_default_disable_mention_notifications ||
-      current_settings->disable_mention_notifications != new_settings.disable_mention_notifications;
-  result.are_changed =
-      result.need_update_server || result.need_update_local ||
-      current_settings->is_synchronized != new_settings.is_synchronized ||
-      current_settings->is_use_default_fixed != new_settings.is_use_default_fixed ||
-      are_different_equivalent_notification_sounds(current_settings->sound, new_settings.sound) ||
-      are_different_equivalent_notification_sounds(current_settings->story_sound, new_settings.story_sound);
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogNotificationSettings.h b/third-party/td/td/td/telegram/DialogNotificationSettings.h
deleted file mode 100644
index 7ecc15c279..0000000000
--- a/third-party/td/td/td/telegram/DialogNotificationSettings.h
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/NotificationSound.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class DialogNotificationSettings {
- public:
-  int32 mute_until = 0;
-  unique_ptr<NotificationSound> sound;
-  unique_ptr<NotificationSound> story_sound;
-  bool show_preview = true;
-  bool mute_stories = false;
-  bool hide_story_sender = false;
-  bool silent_send_message = false;
-  bool use_default_mute_until = true;
-  bool use_default_show_preview = true;
-  bool use_default_mute_stories = true;
-  bool use_default_hide_story_sender = true;
-  bool is_use_default_fixed = true;
-  bool is_secret_chat_show_preview_fixed = false;
-  bool is_synchronized = false;
-
-  // local settings
-  bool use_default_disable_pinned_message_notifications = true;
-  bool disable_pinned_message_notifications = false;
-  bool use_default_disable_mention_notifications = true;
-  bool disable_mention_notifications = false;
-
-  DialogNotificationSettings() = default;
-
-  DialogNotificationSettings(bool use_default_mute_until, int32 mute_until, unique_ptr<NotificationSound> &&sound,
-                             bool use_default_show_preview, bool show_preview, bool use_default_mute_stories,
-                             bool mute_stories, unique_ptr<NotificationSound> &&story_sound,
-                             bool use_default_hide_story_sender, bool hide_story_sender, bool silent_send_message,
-                             bool use_default_disable_pinned_message_notifications,
-                             bool disable_pinned_message_notifications, bool use_default_disable_mention_notifications,
-                             bool disable_mention_notifications)
-      : mute_until(mute_until)
-      , sound(std::move(sound))
-      , story_sound(std::move(story_sound))
-      , show_preview(show_preview)
-      , mute_stories(mute_stories)
-      , hide_story_sender(hide_story_sender)
-      , silent_send_message(silent_send_message)
-      , use_default_mute_until(use_default_mute_until)
-      , use_default_show_preview(use_default_show_preview)
-      , use_default_mute_stories(use_default_mute_stories)
-      , use_default_hide_story_sender(use_default_hide_story_sender)
-      , is_synchronized(true)
-      , use_default_disable_pinned_message_notifications(use_default_disable_pinned_message_notifications)
-      , disable_pinned_message_notifications(disable_pinned_message_notifications)
-      , use_default_disable_mention_notifications(use_default_disable_mention_notifications)
-      , disable_mention_notifications(disable_mention_notifications) {
-  }
-
-  telegram_api::object_ptr<telegram_api::inputPeerNotifySettings> get_input_peer_notify_settings() const;
-
-  DialogNotificationSettings clone_for_secret_chat() const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogNotificationSettings &notification_settings);
-
-td_api::object_ptr<td_api::chatNotificationSettings> get_chat_notification_settings_object(
-    const DialogNotificationSettings *notification_settings);
-
-Result<DialogNotificationSettings> get_dialog_notification_settings(
-    td_api::object_ptr<td_api::chatNotificationSettings> &&notification_settings,
-    const DialogNotificationSettings *old_settings);
-
-DialogNotificationSettings get_dialog_notification_settings(tl_object_ptr<telegram_api::peerNotifySettings> &&settings,
-                                                            const DialogNotificationSettings *old_settings);
-
-bool are_default_dialog_notification_settings(const DialogNotificationSettings &settings, bool compare_sound);
-
-bool are_default_story_notification_settings(const DialogNotificationSettings &settings);
-
-struct NeedUpdateDialogNotificationSettings {
-  bool need_update_server = false;
-  bool need_update_local = false;
-  bool are_changed = false;
-};
-NeedUpdateDialogNotificationSettings need_update_dialog_notification_settings(
-    const DialogNotificationSettings *current_settings, const DialogNotificationSettings &new_settings);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogNotificationSettings.hpp b/third-party/td/td/td/telegram/DialogNotificationSettings.hpp
deleted file mode 100644
index cd3262534b..0000000000
--- a/third-party/td/td/td/telegram/DialogNotificationSettings.hpp
+++ /dev/null
@@ -1,113 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogNotificationSettings.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/NotificationSound.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const DialogNotificationSettings &notification_settings, StorerT &storer) {
-  bool is_muted = !notification_settings.use_default_mute_until && notification_settings.mute_until != 0 &&
-                  notification_settings.mute_until > G()->unix_time();
-  bool has_sound = notification_settings.sound != nullptr;
-  bool has_ringtone_support = true;
-  bool use_mute_stories = !notification_settings.use_default_mute_stories;
-  bool has_story_sound = notification_settings.story_sound != nullptr;
-  bool use_hide_story_sender = !notification_settings.use_default_hide_story_sender;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_muted);
-  STORE_FLAG(has_sound);
-  STORE_FLAG(notification_settings.show_preview);
-  STORE_FLAG(notification_settings.silent_send_message);
-  STORE_FLAG(notification_settings.is_synchronized);
-  STORE_FLAG(notification_settings.use_default_mute_until);
-  STORE_FLAG(false);  // use_default_sound
-  STORE_FLAG(notification_settings.use_default_show_preview);
-  STORE_FLAG(notification_settings.is_use_default_fixed);
-  STORE_FLAG(!notification_settings.use_default_disable_pinned_message_notifications);
-  STORE_FLAG(notification_settings.disable_pinned_message_notifications);
-  STORE_FLAG(!notification_settings.use_default_disable_mention_notifications);
-  STORE_FLAG(notification_settings.disable_mention_notifications);
-  STORE_FLAG(notification_settings.is_secret_chat_show_preview_fixed);
-  STORE_FLAG(has_ringtone_support);
-  STORE_FLAG(notification_settings.mute_stories);
-  STORE_FLAG(use_mute_stories);
-  STORE_FLAG(has_story_sound);
-  STORE_FLAG(notification_settings.hide_story_sender);
-  STORE_FLAG(use_hide_story_sender);
-  END_STORE_FLAGS();
-  if (is_muted) {
-    store(notification_settings.mute_until, storer);
-  }
-  if (has_sound) {
-    store(notification_settings.sound, storer);
-  }
-  if (has_story_sound) {
-    store(notification_settings.story_sound, storer);
-  }
-}
-
-template <class ParserT>
-void parse(DialogNotificationSettings &notification_settings, ParserT &parser) {
-  bool is_muted;
-  bool has_sound;
-  bool use_default_sound;
-  bool use_disable_pinned_message_notifications;
-  bool use_disable_mention_notifications;
-  bool has_ringtone_support;
-  bool use_mute_stories;
-  bool has_story_sound;
-  bool use_hide_story_sender;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_muted);
-  PARSE_FLAG(has_sound);
-  PARSE_FLAG(notification_settings.show_preview);
-  PARSE_FLAG(notification_settings.silent_send_message);
-  PARSE_FLAG(notification_settings.is_synchronized);
-  PARSE_FLAG(notification_settings.use_default_mute_until);
-  PARSE_FLAG(use_default_sound);
-  PARSE_FLAG(notification_settings.use_default_show_preview);
-  PARSE_FLAG(notification_settings.is_use_default_fixed);
-  PARSE_FLAG(use_disable_pinned_message_notifications);
-  PARSE_FLAG(notification_settings.disable_pinned_message_notifications);
-  PARSE_FLAG(use_disable_mention_notifications);
-  PARSE_FLAG(notification_settings.disable_mention_notifications);
-  PARSE_FLAG(notification_settings.is_secret_chat_show_preview_fixed);
-  PARSE_FLAG(has_ringtone_support);
-  PARSE_FLAG(notification_settings.mute_stories);
-  PARSE_FLAG(use_mute_stories);
-  PARSE_FLAG(has_story_sound);
-  PARSE_FLAG(notification_settings.hide_story_sender);
-  PARSE_FLAG(use_hide_story_sender);
-  END_PARSE_FLAGS();
-  notification_settings.use_default_disable_pinned_message_notifications = !use_disable_pinned_message_notifications;
-  notification_settings.use_default_disable_mention_notifications = !use_disable_mention_notifications;
-  notification_settings.use_default_mute_stories = !use_mute_stories;
-  notification_settings.use_default_hide_story_sender = !use_hide_story_sender;
-  if (is_muted) {
-    parse(notification_settings.mute_until, parser);
-  }
-  if (has_sound) {
-    if (has_ringtone_support) {
-      parse_notification_sound(notification_settings.sound, parser);
-    } else {
-      string sound;
-      parse(sound, parser);
-      notification_settings.sound = use_default_sound ? nullptr : get_legacy_notification_sound(sound);
-    }
-  }
-  if (has_story_sound) {
-    parse_notification_sound(notification_settings.story_sound, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogParticipant.cpp b/third-party/td/td/td/telegram/DialogParticipant.cpp
deleted file mode 100644
index afb2c8dcee..0000000000
--- a/third-party/td/td/td/telegram/DialogParticipant.cpp
+++ /dev/null
@@ -1,742 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogParticipant.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-#include <limits>
-
-namespace td {
-
-AdministratorRights::AdministratorRights(const tl_object_ptr<telegram_api::chatAdminRights> &rights,
-                                         ChannelType channel_type) {
-  if (rights == nullptr) {
-    flags_ = 0;
-    return;
-  }
-
-  if (!rights->other_) {
-    LOG(ERROR) << "Receive wrong other flag in " << to_string(rights);
-  }
-  *this =
-      AdministratorRights(rights->anonymous_, rights->other_, rights->change_info_, rights->post_messages_,
-                          rights->edit_messages_, rights->delete_messages_, rights->invite_users_, rights->ban_users_,
-                          rights->pin_messages_, rights->manage_topics_, rights->add_admins_, rights->manage_call_,
-                          rights->post_stories_, rights->edit_stories_, rights->delete_stories_, channel_type);
-}
-
-AdministratorRights::AdministratorRights(const td_api::object_ptr<td_api::chatAdministratorRights> &rights,
-                                         ChannelType channel_type) {
-  if (rights == nullptr) {
-    flags_ = 0;
-    return;
-  }
-  *this = AdministratorRights(rights->is_anonymous_, rights->can_manage_chat_, rights->can_change_info_,
-                              rights->can_post_messages_, rights->can_edit_messages_, rights->can_delete_messages_,
-                              rights->can_invite_users_, rights->can_restrict_members_, rights->can_pin_messages_,
-                              rights->can_manage_topics_, rights->can_promote_members_, rights->can_manage_video_chats_,
-                              rights->can_post_stories_, rights->can_edit_stories_, rights->can_delete_stories_,
-                              channel_type);
-}
-
-AdministratorRights::AdministratorRights(bool is_anonymous, bool can_manage_dialog, bool can_change_info,
-                                         bool can_post_messages, bool can_edit_messages, bool can_delete_messages,
-                                         bool can_invite_users, bool can_restrict_members, bool can_pin_messages,
-                                         bool can_manage_topics, bool can_promote_members, bool can_manage_calls,
-                                         bool can_post_stories, bool can_edit_stories, bool can_delete_stories,
-                                         ChannelType channel_type) {
-  switch (channel_type) {
-    case ChannelType::Broadcast:
-      can_pin_messages = false;
-      can_manage_topics = false;
-      is_anonymous = false;
-      break;
-    case ChannelType::Megagroup:
-      can_post_messages = false;
-      can_edit_messages = false;
-      break;
-    case ChannelType::Unknown:
-      break;
-  }
-  flags_ = (static_cast<uint64>(can_manage_dialog) * CAN_MANAGE_DIALOG) |
-           (static_cast<uint64>(can_change_info) * CAN_CHANGE_INFO_AND_SETTINGS) |
-           (static_cast<uint64>(can_post_messages) * CAN_POST_MESSAGES) |
-           (static_cast<uint64>(can_edit_messages) * CAN_EDIT_MESSAGES) |
-           (static_cast<uint64>(can_delete_messages) * CAN_DELETE_MESSAGES) |
-           (static_cast<uint64>(can_invite_users) * CAN_INVITE_USERS) |
-           (static_cast<uint64>(can_restrict_members) * CAN_RESTRICT_MEMBERS) |
-           (static_cast<uint64>(can_pin_messages) * CAN_PIN_MESSAGES) |
-           (static_cast<uint64>(can_manage_topics) * CAN_MANAGE_TOPICS) |
-           (static_cast<uint64>(can_promote_members) * CAN_PROMOTE_MEMBERS) |
-           (static_cast<uint64>(can_manage_calls) * CAN_MANAGE_CALLS) |
-           (static_cast<uint64>(can_post_stories) * CAN_POST_STORIES) |
-           (static_cast<uint64>(can_edit_stories) * CAN_EDIT_STORIES) |
-           (static_cast<uint64>(can_delete_stories) * CAN_DELETE_STORIES) |
-           (static_cast<uint64>(is_anonymous) * IS_ANONYMOUS);
-  if (flags_ != 0) {
-    flags_ |= CAN_MANAGE_DIALOG;
-    if (channel_type == ChannelType::Broadcast) {
-      flags_ |= CAN_RESTRICT_MEMBERS;
-    }
-  }
-}
-
-telegram_api::object_ptr<telegram_api::chatAdminRights> AdministratorRights::get_chat_admin_rights() const {
-  return telegram_api::make_object<telegram_api::chatAdminRights>(
-      0, can_change_info_and_settings(), can_post_messages(), can_edit_messages(), can_delete_messages(),
-      can_restrict_members(), can_invite_users(), can_pin_messages(), can_promote_members(), is_anonymous(),
-      can_manage_calls(), can_manage_dialog(), can_manage_topics(), can_post_stories(), can_edit_stories(),
-      can_delete_stories());
-}
-
-td_api::object_ptr<td_api::chatAdministratorRights> AdministratorRights::get_chat_administrator_rights_object() const {
-  return td_api::make_object<td_api::chatAdministratorRights>(
-      can_manage_dialog(), can_change_info_and_settings(), can_post_messages(), can_edit_messages(),
-      can_delete_messages(), can_invite_users(), can_restrict_members(), can_pin_messages(), can_manage_topics(),
-      can_promote_members(), can_manage_calls(), can_post_stories(), can_edit_stories(), can_delete_stories(),
-      is_anonymous());
-}
-
-bool operator==(const AdministratorRights &lhs, const AdministratorRights &rhs) {
-  return lhs.flags_ == rhs.flags_;
-}
-
-bool operator!=(const AdministratorRights &lhs, const AdministratorRights &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const AdministratorRights &status) {
-  string_builder << "Administrator: ";
-  if (status.can_manage_dialog()) {
-    string_builder << "(manage)";
-  }
-  if (status.can_change_info_and_settings()) {
-    string_builder << "(change)";
-  }
-  if (status.can_post_messages()) {
-    string_builder << "(post)";
-  }
-  if (status.can_edit_messages()) {
-    string_builder << "(edit)";
-  }
-  if (status.can_delete_messages()) {
-    string_builder << "(delete)";
-  }
-  if (status.can_invite_users()) {
-    string_builder << "(invite)";
-  }
-  if (status.can_restrict_members()) {
-    string_builder << "(restrict)";
-  }
-  if (status.can_pin_messages()) {
-    string_builder << "(pin)";
-  }
-  if (status.can_manage_topics()) {
-    string_builder << "(manage_topics)";
-  }
-  if (status.can_promote_members()) {
-    string_builder << "(promote)";
-  }
-  if (status.can_manage_calls()) {
-    string_builder << "(voice chat)";
-  }
-  if (status.can_post_stories()) {
-    string_builder << "(post story)";
-  }
-  if (status.can_edit_stories()) {
-    string_builder << "(edit story)";
-  }
-  if (status.can_delete_stories()) {
-    string_builder << "(delete story)";
-  }
-  if (status.is_anonymous()) {
-    string_builder << "(anonymous)";
-  }
-  return string_builder;
-}
-
-RestrictedRights::RestrictedRights(const tl_object_ptr<telegram_api::chatBannedRights> &rights,
-                                   ChannelType channel_type) {
-  if (rights == nullptr || channel_type == ChannelType::Broadcast) {
-    flags_ = 0;
-    return;
-  }
-  if (rights->view_messages_) {
-    LOG(ERROR) << "Can't view messages in banned rights " << to_string(rights);
-  }
-  LOG_IF(ERROR, rights->until_date_ != std::numeric_limits<int32>::max())
-      << "Have until date " << rights->until_date_ << " in restricted rights";
-
-  *this = RestrictedRights(!rights->send_plain_, !rights->send_audios_, !rights->send_docs_, !rights->send_photos_,
-                           !rights->send_videos_, !rights->send_roundvideos_, !rights->send_voices_,
-                           !rights->send_stickers_, !rights->send_gifs_, !rights->send_games_, !rights->send_inline_,
-                           !rights->embed_links_, !rights->send_polls_, !rights->change_info_, !rights->invite_users_,
-                           !rights->pin_messages_, !rights->manage_topics_, channel_type);
-}
-
-RestrictedRights::RestrictedRights(const td_api::object_ptr<td_api::chatPermissions> &rights,
-                                   ChannelType channel_type) {
-  if (rights == nullptr || channel_type == ChannelType::Broadcast) {
-    flags_ = 0;
-    return;
-  }
-
-  *this = RestrictedRights(rights->can_send_basic_messages_, rights->can_send_audios_, rights->can_send_documents_,
-                           rights->can_send_photos_, rights->can_send_videos_, rights->can_send_video_notes_,
-                           rights->can_send_voice_notes_, rights->can_send_other_messages_,
-                           rights->can_send_other_messages_, rights->can_send_other_messages_,
-                           rights->can_send_other_messages_, rights->can_add_link_previews_, rights->can_send_polls_,
-                           rights->can_change_info_, rights->can_invite_users_, rights->can_pin_messages_,
-                           rights->can_create_topics_, channel_type);
-}
-
-RestrictedRights::RestrictedRights(bool can_send_messages, bool can_send_audios, bool can_send_documents,
-                                   bool can_send_photos, bool can_send_videos, bool can_send_video_notes,
-                                   bool can_send_voice_notes, bool can_send_stickers, bool can_send_animations,
-                                   bool can_send_games, bool can_use_inline_bots, bool can_add_web_page_previews,
-                                   bool can_send_polls, bool can_change_info_and_settings, bool can_invite_users,
-                                   bool can_pin_messages, bool can_manage_topics, ChannelType channel_type) {
-  if (channel_type == ChannelType::Broadcast) {
-    flags_ = 0;
-    return;
-  }
-  flags_ = (static_cast<uint64>(can_send_messages) * CAN_SEND_MESSAGES) |
-           (static_cast<uint64>(can_send_audios) * CAN_SEND_AUDIOS) |
-           (static_cast<uint64>(can_send_documents) * CAN_SEND_DOCUMENTS) |
-           (static_cast<uint64>(can_send_photos) * CAN_SEND_PHOTOS) |
-           (static_cast<uint64>(can_send_videos) * CAN_SEND_VIDEOS) |
-           (static_cast<uint64>(can_send_video_notes) * CAN_SEND_VIDEO_NOTES) |
-           (static_cast<uint64>(can_send_voice_notes) * CAN_SEND_VOICE_NOTES) |
-           (static_cast<uint64>(can_send_stickers) * CAN_SEND_STICKERS) |
-           (static_cast<uint64>(can_send_animations) * CAN_SEND_ANIMATIONS) |
-           (static_cast<uint64>(can_send_games) * CAN_SEND_GAMES) |
-           (static_cast<uint64>(can_use_inline_bots) * CAN_USE_INLINE_BOTS) |
-           (static_cast<uint64>(can_add_web_page_previews) * CAN_ADD_WEB_PAGE_PREVIEWS) |
-           (static_cast<uint64>(can_send_polls) * CAN_SEND_POLLS) |
-           (static_cast<uint64>(can_change_info_and_settings) * CAN_CHANGE_INFO_AND_SETTINGS) |
-           (static_cast<uint64>(can_invite_users) * CAN_INVITE_USERS) |
-           (static_cast<uint64>(can_pin_messages) * CAN_PIN_MESSAGES) |
-           (static_cast<uint64>(can_manage_topics) * CAN_MANAGE_TOPICS);
-}
-
-td_api::object_ptr<td_api::chatPermissions> RestrictedRights::get_chat_permissions_object() const {
-  return td_api::make_object<td_api::chatPermissions>(
-      can_send_messages(), can_send_audios(), can_send_documents(), can_send_photos(), can_send_videos(),
-      can_send_video_notes(), can_send_voice_notes(), can_send_polls(),
-      can_send_stickers() || can_send_animations() || can_send_games() || can_use_inline_bots(),
-      can_add_web_page_previews(), can_change_info_and_settings(), can_invite_users(), can_pin_messages(),
-      can_manage_topics());
-}
-
-telegram_api::object_ptr<telegram_api::chatBannedRights> RestrictedRights::get_chat_banned_rights() const {
-  return telegram_api::make_object<telegram_api::chatBannedRights>(
-      0, false /*view_messages*/, false /*send_messages*/, false /*send_media*/, !can_send_stickers(),
-      !can_send_animations(), !can_send_games(), !can_use_inline_bots(), !can_add_web_page_previews(),
-      !can_send_polls(), !can_change_info_and_settings(), !can_invite_users(), !can_pin_messages(),
-      !can_manage_topics(), !can_send_photos(), !can_send_videos(), !can_send_video_notes(), !can_send_audios(),
-      !can_send_voice_notes(), !can_send_documents(), !can_send_messages(), 0);
-}
-
-bool operator==(const RestrictedRights &lhs, const RestrictedRights &rhs) {
-  return lhs.flags_ == rhs.flags_;
-}
-
-bool operator!=(const RestrictedRights &lhs, const RestrictedRights &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const RestrictedRights &status) {
-  string_builder << "Restricted: ";
-  if (!status.can_send_messages()) {
-    string_builder << "(text+contact+invoice+location+venue)";
-  }
-  if (!status.can_send_audios()) {
-    string_builder << "(audios)";
-  }
-  if (!status.can_send_documents()) {
-    string_builder << "(documents)";
-  }
-  if (!status.can_send_photos()) {
-    string_builder << "(photos)";
-  }
-  if (!status.can_send_videos()) {
-    string_builder << "(videos)";
-  }
-  if (!status.can_send_video_notes()) {
-    string_builder << "(video notes)";
-  }
-  if (!status.can_send_voice_notes()) {
-    string_builder << "(voice notes)";
-  }
-  if (!status.can_send_stickers()) {
-    string_builder << "(stickers+dices)";
-  }
-  if (!status.can_send_animations()) {
-    string_builder << "(animations)";
-  }
-  if (!status.can_send_games()) {
-    string_builder << "(games)";
-  }
-  if (!status.can_send_polls()) {
-    string_builder << "(polls)";
-  }
-  if (!status.can_use_inline_bots()) {
-    string_builder << "(inline bots)";
-  }
-  if (!status.can_add_web_page_previews()) {
-    string_builder << "(links)";
-  }
-  if (!status.can_change_info_and_settings()) {
-    string_builder << "(change)";
-  }
-  if (!status.can_invite_users()) {
-    string_builder << "(invite)";
-  }
-  if (!status.can_pin_messages()) {
-    string_builder << "(pin)";
-  }
-  if (!status.can_manage_topics()) {
-    string_builder << "(topics)";
-  }
-  return string_builder;
-}
-
-DialogParticipantStatus::DialogParticipantStatus(Type type, uint64 flags, int32 until_date, string rank)
-    : type_(type), until_date_(until_date), flags_(flags), rank_(strip_empty_characters(std::move(rank), 16)) {
-}
-
-int32 DialogParticipantStatus::fix_until_date(int32 date) {
-  if (date == std::numeric_limits<int32>::max() || date < 0) {
-    return 0;
-  }
-  return date;
-}
-
-DialogParticipantStatus DialogParticipantStatus::Creator(bool is_member, bool is_anonymous, string &&rank) {
-  return DialogParticipantStatus(Type::Creator,
-                                 AdministratorRights::ALL_ADMINISTRATOR_RIGHTS |
-                                     RestrictedRights::ALL_RESTRICTED_RIGHTS | (is_member ? IS_MEMBER : 0) |
-                                     (is_anonymous ? AdministratorRights::IS_ANONYMOUS : 0),
-                                 0, std::move(rank));
-}
-
-DialogParticipantStatus DialogParticipantStatus::Administrator(AdministratorRights administrator_rights, string &&rank,
-                                                               bool can_be_edited) {
-  uint64 flags = administrator_rights.flags_;
-  if (flags == 0) {
-    return Member(0);
-  }
-  flags = flags | (static_cast<uint64>(can_be_edited) * CAN_BE_EDITED);
-  return DialogParticipantStatus(
-      Type::Administrator,
-      IS_MEMBER | (RestrictedRights::ALL_RESTRICTED_RIGHTS & ~RestrictedRights::ALL_ADMIN_PERMISSION_RIGHTS) | flags, 0,
-      std::move(rank));
-}
-
-DialogParticipantStatus DialogParticipantStatus::Member(int32 member_until_date) {
-  return DialogParticipantStatus(Type::Member, IS_MEMBER | RestrictedRights::ALL_RESTRICTED_RIGHTS, member_until_date,
-                                 string());
-}
-
-DialogParticipantStatus DialogParticipantStatus::Restricted(RestrictedRights restricted_rights, bool is_member,
-                                                            int32 restricted_until_date, ChannelType channel_type) {
-  uint64 flags = restricted_rights.flags_;
-  if (flags == RestrictedRights::ALL_RESTRICTED_RIGHTS || channel_type == ChannelType::Broadcast) {
-    return is_member ? Member(0) : Left();
-  }
-  flags |= (static_cast<uint64>(is_member) * IS_MEMBER);
-  return DialogParticipantStatus(Type::Restricted, flags, fix_until_date(restricted_until_date), string());
-}
-
-DialogParticipantStatus DialogParticipantStatus::Left() {
-  return DialogParticipantStatus(Type::Left, RestrictedRights::ALL_RESTRICTED_RIGHTS, 0, string());
-}
-
-DialogParticipantStatus DialogParticipantStatus::Banned(int32 banned_until_date) {
-  return DialogParticipantStatus(Type::Banned, 0, fix_until_date(banned_until_date), string());
-}
-
-DialogParticipantStatus DialogParticipantStatus::GroupAdministrator(bool is_creator) {
-  return Administrator(AdministratorRights(false, true, true, false, false, true, true, true, true, false, false, true,
-                                           false, false, false, ChannelType::Unknown),
-                       string(), is_creator);
-}
-
-DialogParticipantStatus DialogParticipantStatus::ChannelAdministrator(bool is_creator, bool is_megagroup) {
-  auto rights = is_megagroup ? AdministratorRights(false, true, true, false, false, true, true, true, true, true, false,
-                                                   false, false, false, false, ChannelType::Megagroup)
-                             : AdministratorRights(false, true, false, true, true, true, false, true, false, false,
-                                                   false, false, true, true, true, ChannelType::Broadcast);
-  return Administrator(rights, string(), is_creator);
-}
-
-DialogParticipantStatus::DialogParticipantStatus(bool can_be_edited,
-                                                 tl_object_ptr<telegram_api::chatAdminRights> &&admin_rights,
-                                                 string rank, ChannelType channel_type) {
-  CHECK(admin_rights != nullptr);
-  *this = Administrator(AdministratorRights(admin_rights, channel_type), std::move(rank), can_be_edited);
-}
-
-DialogParticipantStatus::DialogParticipantStatus(bool is_member,
-                                                 tl_object_ptr<telegram_api::chatBannedRights> &&banned_rights,
-                                                 ChannelType channel_type) {
-  CHECK(banned_rights != nullptr);
-  if (banned_rights->view_messages_) {
-    *this = Banned(banned_rights->until_date_);
-    return;
-  }
-  if (channel_type == ChannelType::Broadcast) {
-    *this = is_member ? Member(0) : Left();
-    return;
-  }
-
-  auto until_date = fix_until_date(banned_rights->until_date_);
-  banned_rights->until_date_ = std::numeric_limits<int32>::max();
-
-  // manually create Restricted status, because the user can be restricted, but with yet unknown restrictions
-  uint64 flags = RestrictedRights(banned_rights, channel_type).flags_ | (static_cast<uint64>(is_member) * IS_MEMBER);
-  *this = DialogParticipantStatus(Type::Restricted, flags, until_date, string());
-}
-
-RestrictedRights DialogParticipantStatus::get_effective_restricted_rights() const {
-  return RestrictedRights(can_send_messages(), can_send_audios(), can_send_documents(), can_send_photos(),
-                          can_send_videos(), can_send_video_notes(), can_send_voice_notes(), can_send_stickers(),
-                          can_send_animations(), can_send_games(), can_use_inline_bots(), can_add_web_page_previews(),
-                          can_send_polls(), can_change_info_and_settings(), can_invite_users(), can_pin_messages(),
-                          can_create_topics(), ChannelType::Unknown);
-}
-
-td_api::object_ptr<td_api::ChatMemberStatus> DialogParticipantStatus::get_chat_member_status_object() const {
-  switch (type_) {
-    case Type::Creator:
-      return td_api::make_object<td_api::chatMemberStatusCreator>(rank_, is_anonymous(), is_member());
-    case Type::Administrator:
-      return td_api::make_object<td_api::chatMemberStatusAdministrator>(
-          rank_, can_be_edited(), get_administrator_rights().get_chat_administrator_rights_object());
-    case Type::Member:
-      return td_api::make_object<td_api::chatMemberStatusMember>(until_date_);
-    case Type::Restricted:
-      return td_api::make_object<td_api::chatMemberStatusRestricted>(
-          is_member(), until_date_, get_restricted_rights().get_chat_permissions_object());
-    case Type::Left:
-      return td_api::make_object<td_api::chatMemberStatusLeft>();
-    case Type::Banned:
-      return td_api::make_object<td_api::chatMemberStatusBanned>(until_date_);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-tl_object_ptr<telegram_api::chatAdminRights> DialogParticipantStatus::get_chat_admin_rights() const {
-  return get_administrator_rights().get_chat_admin_rights();
-}
-
-tl_object_ptr<telegram_api::chatBannedRights> DialogParticipantStatus::get_chat_banned_rights() const {
-  auto result = get_restricted_rights().get_chat_banned_rights();
-  if (type_ == Type::Banned) {
-    result->flags_ |= telegram_api::chatBannedRights::VIEW_MESSAGES_MASK;
-  }
-  result->until_date_ = until_date_;
-  return result;
-}
-
-DialogParticipantStatus DialogParticipantStatus::apply_restrictions(RestrictedRights default_restrictions,
-                                                                    bool is_booster, bool is_bot) const {
-  auto flags = flags_;
-  switch (type_) {
-    case Type::Creator:
-      // creator can do anything and isn't affected by restrictions
-      break;
-    case Type::Administrator:
-      // administrators aren't affected by restrictions, but if everyone can invite users,
-      // pin messages or change info, they also can do that
-      if (!is_bot) {
-        flags |= default_restrictions.flags_ & RestrictedRights::ALL_ADMIN_PERMISSION_RIGHTS;
-      }
-      break;
-    case Type::Member:
-    case Type::Restricted:
-    case Type::Left:
-      if (!is_booster) {
-        // members and restricted are affected by default restrictions unless they are supergroup boosters
-        flags &= (~RestrictedRights::ALL_RESTRICTED_RIGHTS) | default_restrictions.flags_;
-      }
-      if (is_bot) {
-        // bots must be explicitly granted administrator rights to use them
-        flags &= ~RestrictedRights::ALL_ADMIN_PERMISSION_RIGHTS;
-      }
-      break;
-    case Type::Banned:
-      // banned can do nothing, even restrictions allows them to do that
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  return DialogParticipantStatus(type_, flags, 0, string());
-}
-
-void DialogParticipantStatus::update_restrictions() const {
-  if (until_date_ != 0 && G()->unix_time() > until_date_) {
-    until_date_ = 0;
-    if (type_ == Type::Restricted) {
-      if (is_member()) {
-        type_ = Type::Member;
-      } else {
-        type_ = Type::Left;
-      }
-      flags_ |= RestrictedRights::ALL_RESTRICTED_RIGHTS;
-    } else if (type_ == Type::Banned || type_ == Type::Member) {
-      type_ = Type::Left;
-    } else {
-      UNREACHABLE();
-    }
-  }
-}
-
-bool operator==(const DialogParticipantStatus &lhs, const DialogParticipantStatus &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.flags_ == rhs.flags_ && lhs.until_date_ == rhs.until_date_ &&
-         lhs.rank_ == rhs.rank_;
-}
-
-bool operator!=(const DialogParticipantStatus &lhs, const DialogParticipantStatus &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogParticipantStatus &status) {
-  switch (status.type_) {
-    case DialogParticipantStatus::Type::Creator:
-      string_builder << "Creator";
-      if (!status.is_member()) {
-        string_builder << "-non-member";
-      }
-      if (!status.rank_.empty()) {
-        string_builder << " [" << status.rank_ << "]";
-      }
-      if (status.is_anonymous()) {
-        string_builder << "-anonymous";
-      }
-      return string_builder;
-    case DialogParticipantStatus::Type::Administrator:
-      string_builder << status.get_administrator_rights();
-      if (status.can_be_edited()) {
-        string_builder << "(can_be_edited)";
-      }
-      if (!status.rank_.empty()) {
-        string_builder << " [" << status.rank_ << "]";
-      }
-      return string_builder;
-    case DialogParticipantStatus::Type::Member:
-      string_builder << "Member";
-      if (status.until_date_ != 0) {
-        string_builder << " until " << status.until_date_;
-      }
-      return string_builder;
-    case DialogParticipantStatus::Type::Restricted:
-      string_builder << status.get_restricted_rights();
-      if (status.until_date_ == 0) {
-        string_builder << "forever ";
-      } else {
-        string_builder << "until " << status.until_date_ << " ";
-      }
-      if (!status.is_member()) {
-        string_builder << "non-";
-      }
-      string_builder << "member";
-      return string_builder;
-    case DialogParticipantStatus::Type::Left:
-      return string_builder << "Left";
-    case DialogParticipantStatus::Type::Banned:
-      string_builder << "Banned ";
-      if (status.until_date_ == 0) {
-        string_builder << "forever";
-      } else {
-        string_builder << "until " << status.until_date_;
-      }
-      return string_builder;
-    default:
-      UNREACHABLE();
-      return string_builder << "Impossible";
-  }
-}
-
-DialogParticipantStatus get_dialog_participant_status(const td_api::object_ptr<td_api::ChatMemberStatus> &status,
-                                                      ChannelType channel_type) {
-  auto constructor_id = status == nullptr ? td_api::chatMemberStatusMember::ID : status->get_id();
-  auto fix_until_date = [](int32 until_date) {
-    if (until_date == 0) {
-      // fast path
-      return 0;
-    }
-
-    // if user is restricted for more than 366 days or less than 30 seconds from the current time,
-    // they are considered to be restricted forever
-    auto unix_time = G()->unix_time();
-    if (until_date < unix_time + 30 || until_date > unix_time + 366 * 86400) {
-      return 0;
-    }
-    return until_date;
-  };
-  switch (constructor_id) {
-    case td_api::chatMemberStatusCreator::ID: {
-      auto st = static_cast<const td_api::chatMemberStatusCreator *>(status.get());
-      auto custom_title = st->custom_title_;
-      if (!clean_input_string(custom_title)) {
-        custom_title.clear();
-      }
-      return DialogParticipantStatus::Creator(st->is_member_, st->is_anonymous_, std::move(custom_title));
-    }
-    case td_api::chatMemberStatusAdministrator::ID: {
-      auto st = static_cast<const td_api::chatMemberStatusAdministrator *>(status.get());
-      auto custom_title = st->custom_title_;
-      if (!clean_input_string(custom_title)) {
-        custom_title.clear();
-      }
-      return DialogParticipantStatus::Administrator(AdministratorRights(st->rights_, channel_type),
-                                                    std::move(custom_title), true /*st->can_be_edited_*/);
-    }
-    case td_api::chatMemberStatusMember::ID:
-      return DialogParticipantStatus::Member(0);
-    case td_api::chatMemberStatusRestricted::ID: {
-      auto st = static_cast<const td_api::chatMemberStatusRestricted *>(status.get());
-      return DialogParticipantStatus::Restricted(RestrictedRights(st->permissions_, channel_type), st->is_member_,
-                                                 fix_until_date(st->restricted_until_date_), channel_type);
-    }
-    case td_api::chatMemberStatusLeft::ID:
-      return DialogParticipantStatus::Left();
-    case td_api::chatMemberStatusBanned::ID: {
-      auto st = static_cast<const td_api::chatMemberStatusBanned *>(status.get());
-      return DialogParticipantStatus::Banned(fix_until_date(st->banned_until_date_));
-    }
-    default:
-      UNREACHABLE();
-      return DialogParticipantStatus::Member(0);
-  }
-}
-
-DialogParticipant::DialogParticipant(DialogId dialog_id, UserId inviter_user_id, int32 joined_date,
-                                     DialogParticipantStatus status)
-    : dialog_id_(dialog_id), inviter_user_id_(inviter_user_id), joined_date_(joined_date), status_(std::move(status)) {
-  if (!inviter_user_id_.is_valid() && inviter_user_id_ != UserId()) {
-    LOG(ERROR) << "Receive inviter " << inviter_user_id_;
-    inviter_user_id_ = UserId();
-  }
-  if (joined_date_ < 0) {
-    LOG(ERROR) << "Receive date " << joined_date_;
-    joined_date_ = 0;
-  }
-}
-
-DialogParticipant::DialogParticipant(tl_object_ptr<telegram_api::ChatParticipant> &&participant_ptr,
-                                     int32 chat_creation_date, bool is_creator) {
-  switch (participant_ptr->get_id()) {
-    case telegram_api::chatParticipant::ID: {
-      auto participant = move_tl_object_as<telegram_api::chatParticipant>(participant_ptr);
-      *this = {DialogId(UserId(participant->user_id_)), UserId(participant->inviter_id_), participant->date_,
-               DialogParticipantStatus::Member(0)};
-      break;
-    }
-    case telegram_api::chatParticipantCreator::ID: {
-      auto participant = move_tl_object_as<telegram_api::chatParticipantCreator>(participant_ptr);
-      *this = {DialogId(UserId(participant->user_id_)), UserId(participant->user_id_), chat_creation_date,
-               DialogParticipantStatus::Creator(true, false, string())};
-      break;
-    }
-    case telegram_api::chatParticipantAdmin::ID: {
-      auto participant = move_tl_object_as<telegram_api::chatParticipantAdmin>(participant_ptr);
-      *this = {DialogId(UserId(participant->user_id_)), UserId(participant->inviter_id_), participant->date_,
-               DialogParticipantStatus::GroupAdministrator(is_creator)};
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-DialogParticipant::DialogParticipant(tl_object_ptr<telegram_api::ChannelParticipant> &&participant_ptr,
-                                     ChannelType channel_type) {
-  CHECK(participant_ptr != nullptr);
-
-  switch (participant_ptr->get_id()) {
-    case telegram_api::channelParticipant::ID: {
-      auto participant = move_tl_object_as<telegram_api::channelParticipant>(participant_ptr);
-      *this = {DialogId(UserId(participant->user_id_)), UserId(), participant->date_,
-               DialogParticipantStatus::Member(participant->subscription_until_date_)};
-      break;
-    }
-    case telegram_api::channelParticipantSelf::ID: {
-      auto participant = move_tl_object_as<telegram_api::channelParticipantSelf>(participant_ptr);
-      *this = {DialogId(UserId(participant->user_id_)), UserId(participant->inviter_id_), participant->date_,
-               DialogParticipantStatus::Member(participant->subscription_until_date_)};
-      break;
-    }
-    case telegram_api::channelParticipantCreator::ID: {
-      auto participant = move_tl_object_as<telegram_api::channelParticipantCreator>(participant_ptr);
-      *this = {DialogId(UserId(participant->user_id_)), UserId(), 0,
-               DialogParticipantStatus::Creator(true, participant->admin_rights_->anonymous_,
-                                                std::move(participant->rank_))};
-      break;
-    }
-    case telegram_api::channelParticipantAdmin::ID: {
-      auto participant = move_tl_object_as<telegram_api::channelParticipantAdmin>(participant_ptr);
-      *this = {DialogId(UserId(participant->user_id_)), UserId(participant->promoted_by_), participant->date_,
-               DialogParticipantStatus(participant->can_edit_, std::move(participant->admin_rights_),
-                                       std::move(participant->rank_), channel_type)};
-      break;
-    }
-    case telegram_api::channelParticipantLeft::ID: {
-      auto participant = move_tl_object_as<telegram_api::channelParticipantLeft>(participant_ptr);
-      *this = {DialogId(participant->peer_), UserId(), 0, DialogParticipantStatus::Left()};
-      break;
-    }
-    case telegram_api::channelParticipantBanned::ID: {
-      auto participant = move_tl_object_as<telegram_api::channelParticipantBanned>(participant_ptr);
-      *this = {DialogId(participant->peer_), UserId(participant->kicked_by_), participant->date_,
-               DialogParticipantStatus(!participant->left_, std::move(participant->banned_rights_), channel_type)};
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-bool DialogParticipant::is_valid() const {
-  if (!dialog_id_.is_valid() || joined_date_ < 0) {
-    return false;
-  }
-  if (status_.is_restricted() || status_.is_banned() || (status_.is_administrator() && !status_.is_creator())) {
-    return inviter_user_id_.is_valid();
-  }
-  return true;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogParticipant &dialog_participant) {
-  return string_builder << '[' << dialog_participant.dialog_id_ << " invited by " << dialog_participant.inviter_user_id_
-                        << " at " << dialog_participant.joined_date_ << " with status " << dialog_participant.status_
-                        << ']';
-}
-
-td_api::object_ptr<td_api::chatMembers> DialogParticipants::get_chat_members_object(Td *td, const char *source) const {
-  vector<tl_object_ptr<td_api::chatMember>> chat_members;
-  chat_members.reserve(participants_.size());
-  for (auto &participant : participants_) {
-    chat_members.push_back(td->chat_manager_->get_chat_member_object(participant, source));
-  }
-
-  return td_api::make_object<td_api::chatMembers>(total_count_, std::move(chat_members));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogParticipant.h b/third-party/td/td/td/telegram/DialogParticipant.h
deleted file mode 100644
index db5cfdb6ba..0000000000
--- a/third-party/td/td/td/telegram/DialogParticipant.h
+++ /dev/null
@@ -1,703 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Td;
-
-class AdministratorRights {
-  static constexpr uint64 CAN_CHANGE_INFO_AND_SETTINGS = 1 << 0;
-  static constexpr uint64 CAN_POST_MESSAGES = 1 << 1;
-  static constexpr uint64 CAN_EDIT_MESSAGES = 1 << 2;
-  static constexpr uint64 CAN_DELETE_MESSAGES = 1 << 3;
-  static constexpr uint64 CAN_INVITE_USERS = 1 << 4;
-  // static constexpr uint64 CAN_EXPORT_DIALOG_INVITE_LINK = 1 << 5;
-  static constexpr uint64 CAN_RESTRICT_MEMBERS = 1 << 6;
-  static constexpr uint64 CAN_PIN_MESSAGES = 1 << 7;
-  static constexpr uint64 CAN_PROMOTE_MEMBERS = 1 << 8;
-  static constexpr uint64 CAN_MANAGE_CALLS = 1 << 9;
-  static constexpr uint64 CAN_MANAGE_DIALOG = 1 << 10;
-  static constexpr uint64 CAN_MANAGE_TOPICS = 1 << 11;
-  static constexpr uint64 LEGACY_CAN_SEND_MEDIA = 1 << 17;
-  static constexpr uint64 CAN_POST_STORIES = static_cast<uint64>(1) << 48;
-  static constexpr uint64 CAN_EDIT_STORIES = static_cast<uint64>(1) << 49;
-  static constexpr uint64 CAN_DELETE_STORIES = static_cast<uint64>(1) << 50;
-  static constexpr uint64 IS_ANONYMOUS = 1 << 13;
-
-  static constexpr uint64 ALL_ADMINISTRATOR_RIGHTS =
-      CAN_CHANGE_INFO_AND_SETTINGS | CAN_POST_MESSAGES | CAN_EDIT_MESSAGES | CAN_DELETE_MESSAGES | CAN_INVITE_USERS |
-      CAN_RESTRICT_MEMBERS | CAN_PIN_MESSAGES | CAN_MANAGE_TOPICS | CAN_PROMOTE_MEMBERS | CAN_MANAGE_CALLS |
-      CAN_MANAGE_DIALOG | CAN_POST_STORIES | CAN_EDIT_STORIES | CAN_DELETE_STORIES;
-
-  uint64 flags_;
-
-  friend class DialogParticipantStatus;
-
-  explicit AdministratorRights(uint64 flags) : flags_(flags & (ALL_ADMINISTRATOR_RIGHTS | IS_ANONYMOUS)) {
-  }
-
- public:
-  AdministratorRights() : flags_(0) {
-  }
-
-  AdministratorRights(const tl_object_ptr<telegram_api::chatAdminRights> &admin_rights, ChannelType channel_type);
-
-  AdministratorRights(const td_api::object_ptr<td_api::chatAdministratorRights> &administrator_rights,
-                      ChannelType channel_type);
-
-  AdministratorRights(bool is_anonymous, bool can_manage_dialog, bool can_change_info, bool can_post_messages,
-                      bool can_edit_messages, bool can_delete_messages, bool can_invite_users,
-                      bool can_restrict_members, bool can_pin_messages, bool can_manage_topics,
-                      bool can_promote_members, bool can_manage_calls, bool can_post_stories, bool can_edit_stories,
-                      bool can_delete_stories, ChannelType channel_type);
-
-  telegram_api::object_ptr<telegram_api::chatAdminRights> get_chat_admin_rights() const;
-
-  td_api::object_ptr<td_api::chatAdministratorRights> get_chat_administrator_rights_object() const;
-
-  bool can_manage_dialog() const {
-    return (flags_ & CAN_MANAGE_DIALOG) != 0;
-  }
-
-  bool can_change_info_and_settings() const {
-    return (flags_ & CAN_CHANGE_INFO_AND_SETTINGS) != 0;
-  }
-
-  bool can_post_messages() const {
-    return (flags_ & CAN_POST_MESSAGES) != 0;
-  }
-
-  bool can_edit_messages() const {
-    return (flags_ & CAN_EDIT_MESSAGES) != 0;
-  }
-
-  bool can_delete_messages() const {
-    return (flags_ & CAN_DELETE_MESSAGES) != 0;
-  }
-
-  bool can_invite_users() const {
-    return (flags_ & CAN_INVITE_USERS) != 0;
-  }
-
-  bool can_restrict_members() const {
-    return (flags_ & CAN_RESTRICT_MEMBERS) != 0;
-  }
-
-  bool can_pin_messages() const {
-    return (flags_ & CAN_PIN_MESSAGES) != 0;
-  }
-
-  bool can_manage_topics() const {
-    return (flags_ & CAN_MANAGE_TOPICS) != 0;
-  }
-
-  bool can_promote_members() const {
-    return (flags_ & CAN_PROMOTE_MEMBERS) != 0;
-  }
-
-  bool can_manage_calls() const {
-    return (flags_ & CAN_MANAGE_CALLS) != 0;
-  }
-
-  bool can_post_stories() const {
-    return (flags_ & CAN_POST_STORIES) != 0;
-  }
-
-  bool can_edit_stories() const {
-    return (flags_ & CAN_EDIT_STORIES) != 0;
-  }
-
-  bool can_delete_stories() const {
-    return (flags_ & CAN_DELETE_STORIES) != 0;
-  }
-
-  bool is_anonymous() const {
-    return (flags_ & IS_ANONYMOUS) != 0;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(flags_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::MakeParticipantFlags64Bit)) {
-      td::parse(flags_, parser);
-    } else {
-      uint32 legacy_flags;
-      td::parse(legacy_flags, parser);
-      flags_ = legacy_flags;
-    }
-  }
-
-  friend bool operator==(const AdministratorRights &lhs, const AdministratorRights &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const AdministratorRights &status);
-};
-
-bool operator==(const AdministratorRights &lhs, const AdministratorRights &rhs);
-
-bool operator!=(const AdministratorRights &lhs, const AdministratorRights &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const AdministratorRights &status);
-
-class RestrictedRights {
-  static constexpr uint64 CAN_SEND_MESSAGES = 1 << 16;
-  static constexpr uint64 LEGACY_CAN_SEND_MEDIA = 1 << 17;
-  static constexpr uint64 CAN_SEND_AUDIOS = static_cast<uint64>(1) << 32;
-  static constexpr uint64 CAN_SEND_DOCUMENTS = static_cast<uint64>(1) << 33;
-  static constexpr uint64 CAN_SEND_PHOTOS = static_cast<uint64>(1) << 34;
-  static constexpr uint64 CAN_SEND_VIDEOS = static_cast<uint64>(1) << 35;
-  static constexpr uint64 CAN_SEND_VIDEO_NOTES = static_cast<uint64>(1) << 36;
-  static constexpr uint64 CAN_SEND_VOICE_NOTES = static_cast<uint64>(1) << 37;
-  static constexpr uint64 CAN_SEND_STICKERS = 1 << 18;
-  static constexpr uint64 CAN_SEND_ANIMATIONS = 1 << 19;
-  static constexpr uint64 CAN_SEND_GAMES = 1 << 20;
-  static constexpr uint64 CAN_USE_INLINE_BOTS = 1 << 21;
-  static constexpr uint64 CAN_ADD_WEB_PAGE_PREVIEWS = 1 << 22;
-  static constexpr uint64 CAN_SEND_POLLS = 1 << 23;
-  static constexpr uint64 CAN_CHANGE_INFO_AND_SETTINGS = 1 << 24;
-  static constexpr uint64 CAN_INVITE_USERS = 1 << 25;
-  static constexpr uint64 CAN_PIN_MESSAGES = 1 << 26;
-  static constexpr uint64 CAN_MANAGE_TOPICS = 1 << 12;
-
-  static constexpr uint64 ALL_ADMIN_PERMISSION_RIGHTS =
-      CAN_CHANGE_INFO_AND_SETTINGS | CAN_INVITE_USERS | CAN_PIN_MESSAGES | CAN_MANAGE_TOPICS;
-
-  static constexpr uint64 ALL_RESTRICTED_RIGHTS =
-      CAN_SEND_MESSAGES | CAN_SEND_STICKERS | CAN_SEND_ANIMATIONS | CAN_SEND_GAMES | CAN_USE_INLINE_BOTS |
-      CAN_ADD_WEB_PAGE_PREVIEWS | CAN_SEND_POLLS | ALL_ADMIN_PERMISSION_RIGHTS | CAN_SEND_AUDIOS | CAN_SEND_DOCUMENTS |
-      CAN_SEND_PHOTOS | CAN_SEND_VIDEOS | CAN_SEND_VIDEO_NOTES | CAN_SEND_VOICE_NOTES;
-
-  uint64 flags_;
-
-  friend class DialogParticipantStatus;
-
-  explicit RestrictedRights(uint64 flags) : flags_(flags & ALL_RESTRICTED_RIGHTS) {
-  }
-
- public:
-  RestrictedRights(const tl_object_ptr<telegram_api::chatBannedRights> &rights, ChannelType channel_type);
-
-  RestrictedRights(const td_api::object_ptr<td_api::chatPermissions> &rights, ChannelType channel_type);
-
-  RestrictedRights(bool can_send_messages, bool can_send_audios, bool can_send_documents, bool can_send_photos,
-                   bool can_send_videos, bool can_send_video_notes, bool can_send_voice_notes, bool can_send_stickers,
-                   bool can_send_animations, bool can_send_games, bool can_use_inline_bots,
-                   bool can_add_web_page_previews, bool can_send_polls, bool can_change_info_and_settings,
-                   bool can_invite_users, bool can_pin_messages, bool can_manage_topics, ChannelType channel_type);
-
-  td_api::object_ptr<td_api::chatPermissions> get_chat_permissions_object() const;
-
-  tl_object_ptr<telegram_api::chatBannedRights> get_chat_banned_rights() const;
-
-  bool can_change_info_and_settings() const {
-    return (flags_ & CAN_CHANGE_INFO_AND_SETTINGS) != 0;
-  }
-
-  bool can_invite_users() const {
-    return (flags_ & CAN_INVITE_USERS) != 0;
-  }
-
-  bool can_pin_messages() const {
-    return (flags_ & CAN_PIN_MESSAGES) != 0;
-  }
-
-  bool can_manage_topics() const {
-    return (flags_ & CAN_MANAGE_TOPICS) != 0;
-  }
-
-  bool can_send_messages() const {
-    return (flags_ & CAN_SEND_MESSAGES) != 0;
-  }
-
-  bool can_send_audios() const {
-    return (flags_ & CAN_SEND_AUDIOS) != 0;
-  }
-
-  bool can_send_documents() const {
-    return (flags_ & CAN_SEND_DOCUMENTS) != 0;
-  }
-
-  bool can_send_photos() const {
-    return (flags_ & CAN_SEND_PHOTOS) != 0;
-  }
-
-  bool can_send_videos() const {
-    return (flags_ & CAN_SEND_VIDEOS) != 0;
-  }
-
-  bool can_send_video_notes() const {
-    return (flags_ & CAN_SEND_VIDEO_NOTES) != 0;
-  }
-
-  bool can_send_voice_notes() const {
-    return (flags_ & CAN_SEND_VOICE_NOTES) != 0;
-  }
-
-  bool can_send_stickers() const {
-    return (flags_ & CAN_SEND_STICKERS) != 0;
-  }
-
-  bool can_send_animations() const {
-    return (flags_ & CAN_SEND_ANIMATIONS) != 0;
-  }
-
-  bool can_send_games() const {
-    return (flags_ & CAN_SEND_GAMES) != 0;
-  }
-
-  bool can_use_inline_bots() const {
-    return (flags_ & CAN_USE_INLINE_BOTS) != 0;
-  }
-
-  bool can_add_web_page_previews() const {
-    return (flags_ & CAN_ADD_WEB_PAGE_PREVIEWS) != 0;
-  }
-
-  bool can_send_polls() const {
-    return (flags_ & CAN_SEND_POLLS) != 0;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(flags_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::MakeParticipantFlags64Bit)) {
-      td::parse(flags_, parser);
-    } else {
-      uint32 legacy_flags;
-      td::parse(legacy_flags, parser);
-      flags_ = legacy_flags;
-    }
-    if (flags_ & LEGACY_CAN_SEND_MEDIA) {
-      flags_ |= CAN_SEND_AUDIOS | CAN_SEND_DOCUMENTS | CAN_SEND_PHOTOS | CAN_SEND_VIDEOS | CAN_SEND_VIDEO_NOTES |
-                CAN_SEND_VOICE_NOTES;
-    }
-  }
-
-  friend bool operator==(const RestrictedRights &lhs, const RestrictedRights &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const RestrictedRights &status);
-};
-
-bool operator==(const RestrictedRights &lhs, const RestrictedRights &rhs);
-
-bool operator!=(const RestrictedRights &lhs, const RestrictedRights &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const RestrictedRights &status);
-
-class DialogParticipantStatus {
-  static constexpr uint64 HAS_RANK = 1 << 14;
-  static constexpr uint64 CAN_BE_EDITED = 1 << 15;
-
-  static constexpr uint64 IS_MEMBER = 1 << 27;
-
-  // bits 28-30 reserved for Type
-  static constexpr int TYPE_SHIFT = 28;
-  static constexpr int TYPE_SIZE = 3;
-  static constexpr uint64 HAS_UNTIL_DATE = 1u << 31;
-
-  enum class Type : int32 { Creator, Administrator, Member, Restricted, Left, Banned };
-  // all fields are logically const, but should be updated in update_restrictions()
-  mutable Type type_;
-  mutable int32 until_date_;  // member, restricted and banned only
-  mutable uint64 flags_;
-  string rank_;  // creator and administrator only
-
-  static int32 fix_until_date(int32 date);
-
-  DialogParticipantStatus(Type type, uint64 flags, int32 until_date, string rank);
-
-  AdministratorRights get_administrator_rights() const {
-    return AdministratorRights(flags_);
-  }
-
-  RestrictedRights get_restricted_rights() const {
-    return RestrictedRights(flags_);
-  }
-
- public:
-  static DialogParticipantStatus Creator(bool is_member, bool is_anonymous, string &&rank);
-
-  static DialogParticipantStatus Administrator(AdministratorRights administrator_rights, string &&rank,
-                                               bool can_be_edited);
-
-  static DialogParticipantStatus Member(int32 member_until_date);
-
-  static DialogParticipantStatus Restricted(RestrictedRights restricted_rights, bool is_member,
-                                            int32 restricted_until_date, ChannelType channel_type);
-
-  static DialogParticipantStatus Left();
-
-  static DialogParticipantStatus Banned(int32 banned_until_date);
-
-  // legacy rights
-  static DialogParticipantStatus GroupAdministrator(bool is_creator);
-
-  // legacy rights
-  static DialogParticipantStatus ChannelAdministrator(bool is_creator, bool is_megagroup);
-
-  // forcely returns an administrator
-  DialogParticipantStatus(bool can_be_edited, tl_object_ptr<telegram_api::chatAdminRights> &&admin_rights, string rank,
-                          ChannelType channel_type);
-
-  // forcely returns a restricted or banned
-  DialogParticipantStatus(bool is_member, tl_object_ptr<telegram_api::chatBannedRights> &&banned_rights,
-                          ChannelType channel_type);
-
-  bool has_all_administrator_rights(AdministratorRights administrator_rights) const {
-    auto flags = administrator_rights.flags_ &
-                 (AdministratorRights::ALL_ADMINISTRATOR_RIGHTS | AdministratorRights::IS_ANONYMOUS);
-    return (get_administrator_rights().flags_ & flags) == flags;
-  }
-
-  RestrictedRights get_effective_restricted_rights() const;
-
-  DialogParticipantStatus apply_restrictions(RestrictedRights default_restrictions, bool is_booster, bool is_bot) const;
-
-  td_api::object_ptr<td_api::ChatMemberStatus> get_chat_member_status_object() const;
-
-  telegram_api::object_ptr<telegram_api::chatAdminRights> get_chat_admin_rights() const;
-
-  telegram_api::object_ptr<telegram_api::chatBannedRights> get_chat_banned_rights() const;
-
-  // unrestricts user if restriction time expired. Should be called before all privileges checks
-  void update_restrictions() const;
-
-  bool can_manage_dialog() const {
-    return get_administrator_rights().can_manage_dialog();
-  }
-
-  bool can_change_info_and_settings_as_administrator() const {
-    return get_administrator_rights().can_change_info_and_settings();
-  }
-
-  bool can_change_info_and_settings() const {
-    return get_administrator_rights().can_change_info_and_settings() ||
-           get_restricted_rights().can_change_info_and_settings();
-  }
-
-  bool can_post_messages() const {
-    return get_administrator_rights().can_post_messages();
-  }
-
-  bool can_edit_messages() const {
-    return get_administrator_rights().can_edit_messages();
-  }
-
-  bool can_delete_messages() const {
-    return get_administrator_rights().can_delete_messages();
-  }
-
-  bool can_invite_users() const {
-    return get_administrator_rights().can_invite_users() || get_restricted_rights().can_invite_users();
-  }
-
-  bool can_manage_invite_links() const {
-    // invite links can be managed, only if administrator was explicitly granted the right
-    return get_administrator_rights().can_invite_users();
-  }
-
-  bool can_restrict_members() const {
-    return get_administrator_rights().can_restrict_members();
-  }
-
-  bool can_pin_messages() const {
-    return get_administrator_rights().can_pin_messages() || get_restricted_rights().can_pin_messages();
-  }
-
-  bool can_edit_topics() const {
-    // topics can be edited, only if administrator was explicitly granted the right
-    return get_administrator_rights().can_manage_topics();
-  }
-
-  bool can_pin_topics() const {
-    // topics can be pinned, only if administrator was explicitly granted the right
-    return get_administrator_rights().can_manage_topics();
-  }
-
-  bool can_create_topics() const {
-    return get_administrator_rights().can_manage_topics() || get_restricted_rights().can_manage_topics();
-  }
-
-  bool can_promote_members() const {
-    return get_administrator_rights().can_promote_members();
-  }
-
-  bool can_manage_calls() const {
-    return get_administrator_rights().can_manage_calls();
-  }
-
-  bool can_post_stories() const {
-    return get_administrator_rights().can_post_stories();
-  }
-
-  bool can_edit_stories() const {
-    return get_administrator_rights().can_edit_stories();
-  }
-
-  bool can_delete_stories() const {
-    return get_administrator_rights().can_delete_stories();
-  }
-
-  bool can_be_edited() const {
-    return (flags_ & CAN_BE_EDITED) != 0;
-  }
-
-  void toggle_can_be_edited() {
-    flags_ ^= CAN_BE_EDITED;
-  }
-
-  bool can_send_messages() const {
-    return get_restricted_rights().can_send_messages();
-  }
-
-  bool can_send_audios() const {
-    return get_restricted_rights().can_send_audios();
-  }
-
-  bool can_send_documents() const {
-    return get_restricted_rights().can_send_documents();
-  }
-
-  bool can_send_photos() const {
-    return get_restricted_rights().can_send_photos();
-  }
-
-  bool can_send_videos() const {
-    return get_restricted_rights().can_send_videos();
-  }
-
-  bool can_send_video_notes() const {
-    return get_restricted_rights().can_send_video_notes();
-  }
-
-  bool can_send_voice_notes() const {
-    return get_restricted_rights().can_send_voice_notes();
-  }
-
-  bool can_send_stickers() const {
-    return get_restricted_rights().can_send_stickers();
-  }
-
-  bool can_send_animations() const {
-    return get_restricted_rights().can_send_animations();
-  }
-
-  bool can_send_games() const {
-    return get_restricted_rights().can_send_games();
-  }
-
-  bool can_use_inline_bots() const {
-    return get_restricted_rights().can_use_inline_bots();
-  }
-
-  bool can_add_web_page_previews() const {
-    return get_restricted_rights().can_add_web_page_previews();
-  }
-
-  bool can_send_polls() const {
-    return get_restricted_rights().can_send_polls();
-  }
-
-  void set_is_member(bool is_member) {
-    if (is_member) {
-      flags_ |= IS_MEMBER;
-    } else {
-      flags_ &= ~IS_MEMBER;
-    }
-  }
-
-  bool is_member() const {
-    return (flags_ & IS_MEMBER) != 0;
-  }
-
-  bool is_left() const {
-    return (flags_ & IS_MEMBER) == 0;
-  }
-
-  bool is_creator() const {
-    return type_ == Type::Creator;
-  }
-
-  bool is_administrator() const {
-    return type_ == Type::Administrator || type_ == Type::Creator;
-  }
-
-  bool is_administrator_member() const {
-    return type_ == Type::Administrator || (type_ == Type::Creator && is_member());
-  }
-
-  bool is_restricted() const {
-    return type_ == Type::Restricted;
-  }
-
-  bool is_banned() const {
-    return type_ == Type::Banned;
-  }
-
-  int32 get_until_date() const {
-    return until_date_;
-  }
-
-  bool is_anonymous() const {
-    return get_administrator_rights().is_anonymous();
-  }
-
-  const string &get_rank() const {
-    return rank_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    uint64 stored_flags = flags_ | (static_cast<uint64>(static_cast<int32>(type_)) << TYPE_SHIFT);
-    if (until_date_ > 0) {
-      stored_flags |= HAS_UNTIL_DATE;
-    }
-    if (!rank_.empty()) {
-      stored_flags |= HAS_RANK;
-    }
-    td::store(stored_flags, storer);
-    if (until_date_ > 0) {
-      td::store(until_date_, storer);
-    }
-    if (!rank_.empty()) {
-      td::store(rank_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    uint64 stored_flags;
-    if (parser.version() >= static_cast<int32>(Version::MakeParticipantFlags64Bit)) {
-      td::parse(stored_flags, parser);
-    } else {
-      uint32 legacy_flags;
-      td::parse(legacy_flags, parser);
-      stored_flags = legacy_flags;
-    }
-    if ((stored_flags & HAS_UNTIL_DATE) != 0) {
-      td::parse(until_date_, parser);
-      stored_flags &= ~HAS_UNTIL_DATE;
-    }
-    if ((stored_flags & HAS_RANK) != 0) {
-      td::parse(rank_, parser);
-      stored_flags &= ~HAS_RANK;
-    }
-    type_ = static_cast<Type>(static_cast<int32>((stored_flags >> TYPE_SHIFT) & ((1 << TYPE_SIZE) - 1)));
-    stored_flags -= static_cast<uint64>(static_cast<int32>(type_)) << TYPE_SHIFT;
-
-    flags_ = stored_flags;
-
-    if (flags_ & RestrictedRights::LEGACY_CAN_SEND_MEDIA) {
-      flags_ |= RestrictedRights::CAN_SEND_AUDIOS | RestrictedRights::CAN_SEND_DOCUMENTS |
-                RestrictedRights::CAN_SEND_PHOTOS | RestrictedRights::CAN_SEND_VIDEOS |
-                RestrictedRights::CAN_SEND_VIDEO_NOTES | RestrictedRights::CAN_SEND_VOICE_NOTES;
-    }
-
-    if (is_creator()) {
-      flags_ |= AdministratorRights::ALL_ADMINISTRATOR_RIGHTS | RestrictedRights::ALL_RESTRICTED_RIGHTS;
-    } else if (is_administrator()) {
-      flags_ |= AdministratorRights::CAN_MANAGE_DIALOG;
-    }
-  }
-
-  friend bool operator==(const DialogParticipantStatus &lhs, const DialogParticipantStatus &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogParticipantStatus &status);
-};
-
-bool operator==(const DialogParticipantStatus &lhs, const DialogParticipantStatus &rhs);
-
-bool operator!=(const DialogParticipantStatus &lhs, const DialogParticipantStatus &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogParticipantStatus &status);
-
-struct DialogParticipant {
-  DialogId dialog_id_;
-  UserId inviter_user_id_;
-  int32 joined_date_ = 0;
-  DialogParticipantStatus status_ = DialogParticipantStatus::Left();
-
-  DialogParticipant() = default;
-
-  DialogParticipant(DialogId dialog_id, UserId inviter_user_id, int32 joined_date, DialogParticipantStatus status);
-
-  DialogParticipant(tl_object_ptr<telegram_api::ChatParticipant> &&participant_ptr, int32 chat_creation_date,
-                    bool is_creator);
-
-  DialogParticipant(tl_object_ptr<telegram_api::ChannelParticipant> &&participant_ptr, ChannelType channel_type);
-
-  static DialogParticipant left(DialogId dialog_id) {
-    return {dialog_id, UserId(), 0, DialogParticipantStatus::Left()};
-  }
-
-  static DialogParticipant private_member(UserId user_id, UserId other_user_id) {
-    auto inviter_user_id = other_user_id.is_valid() ? other_user_id : user_id;
-    return {DialogId(user_id), inviter_user_id, 0, DialogParticipantStatus::Member(0)};
-  }
-
-  bool is_valid() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(inviter_user_id_, storer);
-    td::store(joined_date_, storer);
-    td::store(status_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::SupportBannedChannels)) {
-      td::parse(dialog_id_, parser);
-    } else {
-      UserId user_id;
-      td::parse(user_id, parser);
-      dialog_id_ = DialogId(user_id);
-    }
-    td::parse(inviter_user_id_, parser);
-    td::parse(joined_date_, parser);
-    td::parse(status_, parser);
-  }
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogParticipant &dialog_participant);
-
-struct DialogParticipants {
-  int32 total_count_ = 0;
-  vector<DialogParticipant> participants_;
-
-  DialogParticipants() = default;
-  DialogParticipants(int32 total_count, vector<DialogParticipant> &&participants)
-      : total_count_(total_count), participants_(std::move(participants)) {
-  }
-
-  td_api::object_ptr<td_api::chatMembers> get_chat_members_object(Td *td, const char *source) const;
-};
-
-DialogParticipantStatus get_dialog_participant_status(const td_api::object_ptr<td_api::ChatMemberStatus> &status,
-                                                      ChannelType channel_type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogParticipantFilter.cpp b/third-party/td/td/td/telegram/DialogParticipantFilter.cpp
deleted file mode 100644
index ee78ed3785..0000000000
--- a/third-party/td/td/td/telegram/DialogParticipantFilter.cpp
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogParticipantFilter.h"
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-namespace td {
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogParticipantFilter &filter) {
-  switch (filter.type_) {
-    case DialogParticipantFilter::Type::Contacts:
-      return string_builder << "Contacts";
-    case DialogParticipantFilter::Type::Administrators:
-      return string_builder << "Administrators";
-    case DialogParticipantFilter::Type::Members:
-      return string_builder << "Members";
-    case DialogParticipantFilter::Type::Restricted:
-      return string_builder << "Restricted";
-    case DialogParticipantFilter::Type::Banned:
-      return string_builder << "Banned";
-    case DialogParticipantFilter::Type::Mention:
-      return string_builder << "Mention";
-    case DialogParticipantFilter::Type::Bots:
-      return string_builder << "Bots";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-DialogParticipantFilter::DialogParticipantFilter(const td_api::object_ptr<td_api::ChatMembersFilter> &filter) {
-  if (filter == nullptr) {
-    type_ = Type::Members;
-    return;
-  }
-  switch (filter->get_id()) {
-    case td_api::chatMembersFilterContacts::ID:
-      type_ = Type::Contacts;
-      break;
-    case td_api::chatMembersFilterAdministrators::ID:
-      type_ = Type::Administrators;
-      break;
-    case td_api::chatMembersFilterMembers::ID:
-      type_ = Type::Members;
-      break;
-    case td_api::chatMembersFilterRestricted::ID:
-      type_ = Type::Restricted;
-      break;
-    case td_api::chatMembersFilterBanned::ID:
-      type_ = Type::Banned;
-      break;
-    case td_api::chatMembersFilterMention::ID: {
-      auto mention_filter = static_cast<const td_api::chatMembersFilterMention *>(filter.get());
-      top_thread_message_id_ = MessageId(mention_filter->message_thread_id_);
-      if (!top_thread_message_id_.is_valid() || !top_thread_message_id_.is_server()) {
-        top_thread_message_id_ = MessageId();
-      }
-      type_ = Type::Mention;
-      break;
-    }
-    case td_api::chatMembersFilterBots::ID:
-      type_ = Type::Bots;
-      break;
-    default:
-      UNREACHABLE();
-      type_ = Type::Members;
-      break;
-  }
-}
-
-td_api::object_ptr<td_api::SupergroupMembersFilter> DialogParticipantFilter::get_supergroup_members_filter_object(
-    const string &query) const {
-  switch (type_) {
-    case Type::Contacts:
-      return td_api::make_object<td_api::supergroupMembersFilterContacts>();
-    case Type::Administrators:
-      return td_api::make_object<td_api::supergroupMembersFilterAdministrators>();
-    case Type::Members:
-      return td_api::make_object<td_api::supergroupMembersFilterSearch>(query);
-    case Type::Restricted:
-      return td_api::make_object<td_api::supergroupMembersFilterRestricted>(query);
-    case Type::Banned:
-      return td_api::make_object<td_api::supergroupMembersFilterBanned>(query);
-    case Type::Mention:
-      return td_api::make_object<td_api::supergroupMembersFilterMention>(query, top_thread_message_id_.get());
-    case Type::Bots:
-      return td_api::make_object<td_api::supergroupMembersFilterBots>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-bool DialogParticipantFilter::has_query() const {
-  switch (type_) {
-    case Type::Members:
-    case Type::Restricted:
-    case Type::Banned:
-    case Type::Mention:
-      return true;
-    case Type::Contacts:
-    case Type::Administrators:
-    case Type::Bots:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool DialogParticipantFilter::is_dialog_participant_suitable(const Td *td, const DialogParticipant &participant) const {
-  switch (type_) {
-    case Type::Contacts:
-      return participant.dialog_id_.get_type() == DialogType::User &&
-             td->user_manager_->is_user_contact(participant.dialog_id_.get_user_id());
-    case Type::Administrators:
-      return participant.status_.is_administrator();
-    case Type::Members:
-      return participant.status_.is_member();
-    case Type::Restricted:
-      return participant.status_.is_restricted();
-    case Type::Banned:
-      return participant.status_.is_banned();
-    case Type::Mention:
-      return true;
-    case Type::Bots:
-      return participant.dialog_id_.get_type() == DialogType::User &&
-             td->user_manager_->is_user_bot(participant.dialog_id_.get_user_id());
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogParticipantFilter.h b/third-party/td/td/td/telegram/DialogParticipantFilter.h
deleted file mode 100644
index 199d995256..0000000000
--- a/third-party/td/td/td/telegram/DialogParticipantFilter.h
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct DialogParticipant;
-class Td;
-
-class DialogParticipantFilter {
-  enum class Type : int32 { Contacts, Administrators, Members, Restricted, Banned, Mention, Bots };
-  Type type_;
-  MessageId top_thread_message_id_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogParticipantFilter &filter);
-
- public:
-  explicit DialogParticipantFilter(const td_api::object_ptr<td_api::ChatMembersFilter> &filter);
-
-  td_api::object_ptr<td_api::SupergroupMembersFilter> get_supergroup_members_filter_object(const string &query) const;
-
-  bool has_query() const;
-
-  bool is_dialog_participant_suitable(const Td *td, const DialogParticipant &participant) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogParticipantFilter &filter);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogParticipantManager.cpp b/third-party/td/td/td/telegram/DialogParticipantManager.cpp
deleted file mode 100644
index 3f4b27b486..0000000000
--- a/third-party/td/td/td/telegram/DialogParticipantManager.cpp
+++ /dev/null
@@ -1,3051 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogParticipantManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChannelParticipantFilter.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/MissingInvitee.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/actor/MultiPromise.h"
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/format.h"
-#include "td/utils/Hints.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <algorithm>
-#include <limits>
-#include <tuple>
-
-namespace td {
-
-class GetOnlinesQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-
- public:
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    CHECK(dialog_id.get_type() == DialogType::Channel);
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_getOnlines(std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getOnlines>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    td_->dialog_participant_manager_->on_update_dialog_online_member_count(dialog_id_, result->onlines_, true);
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetOnlinesQuery");
-    td_->dialog_participant_manager_->on_update_dialog_online_member_count(dialog_id_, 0, true);
-  }
-};
-
-class GetChatJoinRequestsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatJoinRequests>> promise_;
-  DialogId dialog_id_;
-  bool is_full_list_ = false;
-
- public:
-  explicit GetChatJoinRequestsQuery(Promise<td_api::object_ptr<td_api::chatJoinRequests>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &invite_link, const string &query, int32 offset_date,
-            UserId offset_user_id, int32 limit) {
-    dialog_id_ = dialog_id;
-    is_full_list_ =
-        invite_link.empty() && query.empty() && offset_date == 0 && !offset_user_id.is_valid() && limit >= 3;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    auto r_input_user = td_->user_manager_->get_input_user(offset_user_id);
-    if (r_input_user.is_error()) {
-      r_input_user = make_tl_object<telegram_api::inputUserEmpty>();
-    }
-
-    int32 flags = telegram_api::messages_getChatInviteImporters::REQUESTED_MASK;
-    if (!invite_link.empty()) {
-      flags |= telegram_api::messages_getChatInviteImporters::LINK_MASK;
-    }
-    if (!query.empty()) {
-      flags |= telegram_api::messages_getChatInviteImporters::Q_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_getChatInviteImporters(
-        flags, false /*ignored*/, false /*ignored*/, std::move(input_peer), invite_link, query, offset_date,
-        r_input_user.move_as_ok(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getChatInviteImporters>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChatJoinRequestsQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetChatJoinRequestsQuery");
-
-    int32 total_count = result->count_;
-    if (total_count < static_cast<int32>(result->importers_.size())) {
-      LOG(ERROR) << "Receive wrong total count of join requests " << total_count << " in " << dialog_id_;
-      total_count = static_cast<int32>(result->importers_.size());
-    }
-    vector<td_api::object_ptr<td_api::chatJoinRequest>> join_requests;
-    vector<int64> recent_requesters;
-    for (auto &request : result->importers_) {
-      UserId user_id(request->user_id_);
-      UserId approver_user_id(request->approved_by_);
-      if (!user_id.is_valid() || approver_user_id.is_valid() || !request->requested_) {
-        LOG(ERROR) << "Receive invalid join request: " << to_string(request);
-        total_count--;
-        continue;
-      }
-      if (recent_requesters.size() < 3) {
-        recent_requesters.push_back(user_id.get());
-      }
-      join_requests.push_back(td_api::make_object<td_api::chatJoinRequest>(
-          td_->user_manager_->get_user_id_object(user_id, "chatJoinRequest"), request->date_, request->about_));
-    }
-    if (is_full_list_) {
-      td_->messages_manager_->on_update_dialog_pending_join_requests(dialog_id_, total_count,
-                                                                     std::move(recent_requesters));
-    }
-    promise_.set_value(td_api::make_object<td_api::chatJoinRequests>(total_count, std::move(join_requests)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetChatJoinRequestsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class HideChatJoinRequestQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit HideChatJoinRequestQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, UserId user_id, bool approve) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    TRY_RESULT_PROMISE(promise_, input_user, td_->user_manager_->get_input_user(user_id));
-
-    int32 flags = 0;
-    if (approve) {
-      flags |= telegram_api::messages_hideChatJoinRequest::APPROVED_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_hideChatJoinRequest(
-        flags, false /*ignored*/, std::move(input_peer), std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_hideChatJoinRequest>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for HideChatJoinRequestQuery: " << to_string(result);
-    td_->updates_manager_->on_get_updates(std::move(result), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "HideChatJoinRequestQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class HideAllChatJoinRequestsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit HideAllChatJoinRequestsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &invite_link, bool approve) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = 0;
-    if (approve) {
-      flags |= telegram_api::messages_hideAllChatJoinRequests::APPROVED_MASK;
-    }
-    if (!invite_link.empty()) {
-      flags |= telegram_api::messages_hideAllChatJoinRequests::LINK_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_hideAllChatJoinRequests(flags, false /*ignored*/, std::move(input_peer), invite_link)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_hideAllChatJoinRequests>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for HideAllChatJoinRequestsQuery: " << to_string(result);
-    td_->updates_manager_->on_get_updates(std::move(result), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "HideAllChatJoinRequestsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChannelAdministratorsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetChannelAdministratorsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, int64 hash) {
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return promise_.set_error(Status::Error(400, "Supergroup not found"));
-    }
-
-    hash = 0;  // to load even only ranks or creator changed
-
-    channel_id_ = channel_id;
-    send_query(G()->net_query_creator().create(telegram_api::channels_getParticipants(
-        std::move(input_channel), telegram_api::make_object<telegram_api::channelParticipantsAdmins>(), 0,
-        std::numeric_limits<int32>::max(), hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getParticipants>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto participants_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChannelAdministratorsQuery: " << to_string(participants_ptr);
-    switch (participants_ptr->get_id()) {
-      case telegram_api::channels_channelParticipants::ID: {
-        auto participants = telegram_api::move_object_as<telegram_api::channels_channelParticipants>(participants_ptr);
-        td_->user_manager_->on_get_users(std::move(participants->users_), "GetChannelAdministratorsQuery");
-        td_->chat_manager_->on_get_chats(std::move(participants->chats_), "GetChannelAdministratorsQuery");
-
-        auto channel_type = td_->chat_manager_->get_channel_type(channel_id_);
-        vector<DialogAdministrator> administrators;
-        administrators.reserve(participants->participants_.size());
-        for (auto &participant : participants->participants_) {
-          DialogParticipant dialog_participant(std::move(participant), channel_type);
-          if (!dialog_participant.is_valid() || !dialog_participant.status_.is_administrator_member() ||
-              dialog_participant.dialog_id_.get_type() != DialogType::User) {
-            LOG(ERROR) << "Receive " << dialog_participant << " as an administrator of " << channel_id_;
-            continue;
-          }
-          administrators.emplace_back(dialog_participant.dialog_id_.get_user_id(),
-                                      dialog_participant.status_.get_rank(), dialog_participant.status_.is_creator());
-        }
-
-        td_->chat_manager_->on_update_channel_administrator_count(channel_id_,
-                                                                  narrow_cast<int32>(administrators.size()));
-        td_->dialog_participant_manager_->on_update_dialog_administrators(DialogId(channel_id_),
-                                                                          std::move(administrators), true, false);
-
-        break;
-      }
-      case telegram_api::channels_channelParticipantsNotModified::ID:
-        break;
-      default:
-        UNREACHABLE();
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetChannelAdministratorsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChannelParticipantQuery final : public Td::ResultHandler {
-  Promise<DialogParticipant> promise_;
-  ChannelId channel_id_;
-  DialogId participant_dialog_id_;
-
- public:
-  explicit GetChannelParticipantQuery(Promise<DialogParticipant> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, DialogId participant_dialog_id, tl_object_ptr<telegram_api::InputPeer> &&input_peer) {
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return promise_.set_error(Status::Error(400, "Supergroup not found"));
-    }
-
-    CHECK(input_peer != nullptr);
-
-    channel_id_ = channel_id;
-    participant_dialog_id_ = participant_dialog_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_getParticipant(std::move(input_channel), std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getParticipant>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto participant = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChannelParticipantQuery: " << to_string(participant);
-
-    td_->user_manager_->on_get_users(std::move(participant->users_), "GetChannelParticipantQuery");
-    td_->chat_manager_->on_get_chats(std::move(participant->chats_), "GetChannelParticipantQuery");
-    DialogParticipant result(std::move(participant->participant_), td_->chat_manager_->get_channel_type(channel_id_));
-    if (!result.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << result;
-      return promise_.set_error(Status::Error(500, "Receive invalid chat member"));
-    }
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USER_NOT_PARTICIPANT") {
-      promise_.set_value(DialogParticipant::left(participant_dialog_id_));
-      return;
-    }
-
-    if (participant_dialog_id_.get_type() != DialogType::Channel) {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetChannelParticipantQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChannelParticipantsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::channels_channelParticipants>> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetChannelParticipantsQuery(
-      Promise<telegram_api::object_ptr<telegram_api::channels_channelParticipants>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const ChannelParticipantFilter &filter, int32 offset, int32 limit) {
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return promise_.set_error(Status::Error(400, "Supergroup not found"));
-    }
-
-    channel_id_ = channel_id;
-    send_query(G()->net_query_creator().create(telegram_api::channels_getParticipants(
-        std::move(input_channel), filter.get_input_channel_participants_filter(), offset, limit, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getParticipants>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto participants_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChannelParticipantsQuery: " << to_string(participants_ptr);
-    switch (participants_ptr->get_id()) {
-      case telegram_api::channels_channelParticipants::ID: {
-        promise_.set_value(telegram_api::move_object_as<telegram_api::channels_channelParticipants>(participants_ptr));
-        break;
-      }
-      case telegram_api::channels_channelParticipantsNotModified::ID:
-        LOG(ERROR) << "Receive channelParticipantsNotModified";
-        return on_error(Status::Error(500, "Receive channelParticipantsNotModified"));
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetChannelParticipantsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AddChatUserQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::failedToAddMembers>> promise_;
-  ChatId chat_id_;
-  UserId user_id_;
-
- public:
-  explicit AddChatUserQuery(Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChatId chat_id, UserId user_id, tl_object_ptr<telegram_api::InputUser> &&input_user, int32 forward_limit) {
-    chat_id_ = chat_id;
-    user_id_ = user_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_addChatUser(chat_id.get(), std::move(input_user), forward_limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_addChatUser>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for AddChatUserQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr->updates_),
-        PromiseCreator::lambda(
-            [missing_invitees = MissingInvitees(std::move(ptr->missing_invitees_))
-                                    .get_failed_to_add_members_object(td_->user_manager_.get()),
-             promise = std::move(promise_)](Result<Unit>) mutable { promise.set_value(std::move(missing_invitees)); }));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditChatAdminQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChatId chat_id_;
-  UserId user_id_;
-
- public:
-  explicit EditChatAdminQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChatId chat_id, UserId user_id, tl_object_ptr<telegram_api::InputUser> &&input_user,
-            bool is_administrator) {
-    chat_id_ = chat_id;
-    user_id_ = user_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_editChatAdmin(chat_id.get(), std::move(input_user), is_administrator)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editChatAdmin>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    if (!result) {
-      LOG(ERROR) << "Receive false as result of messages.editChatAdmin";
-      return on_error(Status::Error(400, "Can't edit chat administrators"));
-    }
-
-    // result will come in the updates
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteChatUserQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteChatUserQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChatId chat_id, tl_object_ptr<telegram_api::InputUser> &&input_user, bool revoke_messages) {
-    int32 flags = 0;
-    if (revoke_messages) {
-      flags |= telegram_api::messages_deleteChatUser::REVOKE_HISTORY_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_deleteChatUser(flags, false /*ignored*/, chat_id.get(), std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteChatUser>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteChatUserQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class JoinChannelQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit JoinChannelQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(
-        G()->net_query_creator().create(telegram_api::channels_joinChannel(std::move(input_channel)), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_joinChannel>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for JoinChannelQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "JoinChannelQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class InviteToChannelQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::failedToAddMembers>> promise_;
-  ChannelId channel_id_;
-  vector<UserId> user_ids_;
-
- public:
-  explicit InviteToChannelQuery(Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, vector<UserId> user_ids,
-            vector<tl_object_ptr<telegram_api::InputUser>> &&input_users) {
-    channel_id_ = channel_id;
-    user_ids_ = std::move(user_ids);
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_inviteToChannel(std::move(input_channel), std::move(input_users))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_inviteToChannel>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for InviteToChannelQuery: " << to_string(ptr);
-    td_->chat_manager_->invalidate_channel_full(channel_id_, false, "InviteToChannelQuery");
-    td_->updates_manager_->on_get_updates(
-        std::move(std::move(ptr->updates_)),
-        PromiseCreator::lambda(
-            [missing_invitees = MissingInvitees(std::move(ptr->missing_invitees_))
-                                    .get_failed_to_add_members_object(td_->user_manager_.get()),
-             promise = std::move(promise_)](Result<Unit>) mutable { promise.set_value(std::move(missing_invitees)); }));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "InviteToChannelQuery");
-    td_->chat_manager_->invalidate_channel_full(channel_id_, false, "InviteToChannelQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditChannelAdminQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  UserId user_id_;
-  DialogParticipantStatus status_ = DialogParticipantStatus::Left();
-
- public:
-  explicit EditChannelAdminQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, UserId user_id, tl_object_ptr<telegram_api::InputUser> &&input_user,
-            const DialogParticipantStatus &status) {
-    channel_id_ = channel_id;
-    user_id_ = user_id;
-    status_ = status;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::channels_editAdmin(
-        std::move(input_channel), std::move(input_user), status.get_chat_admin_rights(), status.get_rank())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_editAdmin>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditChannelAdminQuery: " << to_string(ptr);
-    td_->chat_manager_->invalidate_channel_full(channel_id_, false, "EditChannelAdminQuery");
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-    td_->dialog_participant_manager_->on_set_channel_participant_status(channel_id_, DialogId(user_id_), status_);
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "EditChannelAdminQuery");
-    td_->chat_manager_->invalidate_channel_full(channel_id_, false, "EditChannelAdminQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditChannelBannedQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  DialogId participant_dialog_id_;
-  DialogParticipantStatus status_ = DialogParticipantStatus::Left();
-
- public:
-  explicit EditChannelBannedQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, DialogId participant_dialog_id, tl_object_ptr<telegram_api::InputPeer> &&input_peer,
-            const DialogParticipantStatus &status) {
-    channel_id_ = channel_id;
-    participant_dialog_id_ = participant_dialog_id;
-    status_ = status;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::channels_editBanned(
-        std::move(input_channel), std::move(input_peer), status.get_chat_banned_rights())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_editBanned>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditChannelBannedQuery: " << to_string(ptr);
-    td_->chat_manager_->invalidate_channel_full(channel_id_, false, "EditChannelBannedQuery");
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-    td_->dialog_participant_manager_->on_set_channel_participant_status(channel_id_, participant_dialog_id_, status_);
-  }
-
-  void on_error(Status status) final {
-    if (participant_dialog_id_.get_type() != DialogType::Channel) {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "EditChannelBannedQuery");
-    }
-    td_->chat_manager_->invalidate_channel_full(channel_id_, false, "EditChannelBannedQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class LeaveChannelQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit LeaveChannelQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(
-        G()->net_query_creator().create(telegram_api::channels_leaveChannel(std::move(input_channel)), {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_leaveChannel>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for LeaveChannelQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USER_NOT_PARTICIPANT") {
-      return td_->chat_manager_->reload_channel(channel_id_, std::move(promise_), "LeaveChannelQuery");
-    }
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "LeaveChannelQuery");
-    td_->chat_manager_->reload_channel_full(channel_id_, Promise<Unit>(), "LeaveChannelQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CanEditChannelCreatorQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit CanEditChannelCreatorQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    auto r_input_user = td_->user_manager_->get_input_user(td_->user_manager_->get_my_id());
-    CHECK(r_input_user.is_ok());
-    send_query(G()->net_query_creator().create(telegram_api::channels_editCreator(
-        telegram_api::make_object<telegram_api::inputChannelEmpty>(), r_input_user.move_as_ok(),
-        make_tl_object<telegram_api::inputCheckPasswordEmpty>())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_editCreator>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(ERROR) << "Receive result for CanEditChannelCreatorQuery: " << to_string(ptr);
-    promise_.set_error(Status::Error(500, "Server doesn't returned error"));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditChannelCreatorQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  UserId user_id_;
-
- public:
-  explicit EditChannelCreatorQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, UserId user_id,
-            tl_object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password) {
-    channel_id_ = channel_id;
-    user_id_ = user_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return promise_.set_error(Status::Error(400, "Have no access to the chat"));
-    }
-    TRY_RESULT_PROMISE(promise_, input_user, td_->user_manager_->get_input_user(user_id));
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_editCreator(std::move(input_channel), std::move(input_user),
-                                           std::move(input_check_password)),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_editCreator>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditChannelCreatorQuery: " << to_string(ptr);
-    td_->chat_manager_->invalidate_channel_full(channel_id_, false, "EditChannelCreatorQuery");
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "EditChannelCreatorQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-DialogParticipantManager::DialogParticipantManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  update_dialog_online_member_count_timeout_.set_callback(on_update_dialog_online_member_count_timeout_callback);
-  update_dialog_online_member_count_timeout_.set_callback_data(static_cast<void *>(this));
-
-  channel_participant_cache_timeout_.set_callback(on_channel_participant_cache_timeout_callback);
-  channel_participant_cache_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-DialogParticipantManager::~DialogParticipantManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), user_online_member_dialogs_,
-                                              dialog_administrators_, channel_participants_,
-                                              cached_channel_participants_);
-}
-
-void DialogParticipantManager::tear_down() {
-  parent_.reset();
-}
-
-void DialogParticipantManager::on_update_dialog_online_member_count_timeout_callback(
-    void *dialog_participant_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto dialog_participant_manager = static_cast<DialogParticipantManager *>(dialog_participant_manager_ptr);
-  send_closure_later(dialog_participant_manager->actor_id(dialog_participant_manager),
-                     &DialogParticipantManager::on_update_dialog_online_member_count_timeout, DialogId(dialog_id_int));
-}
-
-void DialogParticipantManager::on_update_dialog_online_member_count_timeout(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Expired timeout for number of online members in " << dialog_id;
-  bool is_open = td_->messages_manager_->is_dialog_opened(dialog_id);
-  if (!is_open) {
-    send_update_chat_online_member_count(dialog_id, 0);
-    return;
-  }
-
-  if (dialog_id.get_type() == DialogType::Channel && !td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    auto participant_count = td_->chat_manager_->get_channel_participant_count(dialog_id.get_channel_id());
-    auto has_hidden_participants = td_->chat_manager_->get_channel_effective_has_hidden_participants(
-        dialog_id.get_channel_id(), "on_update_dialog_online_member_count_timeout");
-    if (participant_count == 0 || participant_count >= 195 || has_hidden_participants) {
-      td_->create_handler<GetOnlinesQuery>()->send(dialog_id);
-    } else {
-      get_channel_participants(dialog_id.get_channel_id(), td_api::make_object<td_api::supergroupMembersFilterRecent>(),
-                               string(), 0, 200, 200, Auto());
-    }
-    return;
-  }
-  if (dialog_id.get_type() == DialogType::Chat) {
-    // we need actual online status state, so we need to reget chat participants
-    td_->chat_manager_->repair_chat_participants(dialog_id.get_chat_id());
-    return;
-  }
-}
-
-void DialogParticipantManager::on_update_dialog_online_member_count(DialogId dialog_id, int32 online_member_count,
-                                                                    bool is_from_server) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive number of online members in invalid " << dialog_id;
-    return;
-  }
-
-  if (td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    LOG_IF(ERROR, online_member_count != 0)
-        << "Receive " << online_member_count << " as a number of online members in a channel " << dialog_id;
-    return;
-  }
-
-  if (online_member_count < 0) {
-    LOG(ERROR) << "Receive " << online_member_count << " as a number of online members in a " << dialog_id;
-    return;
-  }
-
-  set_dialog_online_member_count(dialog_id, online_member_count, is_from_server,
-                                 "on_update_dialog_online_member_count");
-}
-
-void DialogParticipantManager::on_dialog_opened(DialogId dialog_id) {
-  auto online_count_it = dialog_online_member_counts_.find(dialog_id);
-  if (online_count_it == dialog_online_member_counts_.end()) {
-    return;
-  }
-  auto &info = online_count_it->second;
-  CHECK(!info.is_update_sent);
-  if (Time::now() - info.update_time < ONLINE_MEMBER_COUNT_CACHE_EXPIRE_TIME) {
-    info.is_update_sent = true;
-    send_update_chat_online_member_count(dialog_id, info.online_member_count);
-  }
-}
-
-void DialogParticipantManager::on_dialog_closed(DialogId dialog_id) {
-  auto online_count_it = dialog_online_member_counts_.find(dialog_id);
-  if (online_count_it != dialog_online_member_counts_.end()) {
-    auto &info = online_count_it->second;
-    info.is_update_sent = false;
-  }
-  update_dialog_online_member_count_timeout_.set_timeout_in(dialog_id.get(), ONLINE_MEMBER_COUNT_CACHE_EXPIRE_TIME);
-}
-
-void DialogParticipantManager::set_dialog_online_member_count(DialogId dialog_id, int32 online_member_count,
-                                                              bool is_from_server, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (online_member_count < 0) {
-    LOG(ERROR) << "Receive online_member_count = " << online_member_count << " in " << dialog_id;
-    online_member_count = 0;
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::Chat: {
-      auto participant_count = td_->chat_manager_->get_chat_participant_count(dialog_id.get_chat_id());
-      if (online_member_count > participant_count) {
-        online_member_count = participant_count;
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto participant_count = td_->chat_manager_->get_channel_participant_count(dialog_id.get_channel_id());
-      if (participant_count != 0 && online_member_count > participant_count) {
-        online_member_count = participant_count;
-      }
-      break;
-    }
-    default:
-      break;
-  }
-
-  bool is_open = td_->messages_manager_->is_dialog_opened(dialog_id);
-  auto &info = dialog_online_member_counts_[dialog_id];
-  LOG(INFO) << "Change number of online members from " << info.online_member_count << " to " << online_member_count
-            << " in " << dialog_id << " from " << source;
-  bool need_update = is_open && (!info.is_update_sent || info.online_member_count != online_member_count);
-  info.online_member_count = online_member_count;
-  info.update_time = Time::now();
-
-  if (need_update) {
-    info.is_update_sent = true;
-    send_update_chat_online_member_count(dialog_id, online_member_count);
-  }
-  if (is_open) {
-    if (is_from_server) {
-      update_dialog_online_member_count_timeout_.set_timeout_in(dialog_id.get(), ONLINE_MEMBER_COUNT_UPDATE_TIME);
-    } else {
-      update_dialog_online_member_count_timeout_.add_timeout_in(dialog_id.get(), ONLINE_MEMBER_COUNT_UPDATE_TIME);
-    }
-  }
-}
-
-void DialogParticipantManager::send_update_chat_online_member_count(DialogId dialog_id,
-                                                                    int32 online_member_count) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateChatOnlineMemberCount>(
-          td_->dialog_manager_->get_chat_id_object(dialog_id, "updateChatOnlineMemberCount"), online_member_count));
-}
-
-void DialogParticipantManager::update_user_online_member_count(UserId user_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  auto user_it = user_online_member_dialogs_.find(user_id);
-  if (user_it == user_online_member_dialogs_.end()) {
-    return;
-  }
-  CHECK(user_it->second != nullptr);
-  auto &online_member_dialogs = user_it->second->online_member_dialogs_;
-
-  auto now = G()->unix_time();
-  vector<DialogId> expired_dialog_ids;
-  for (const auto &it : online_member_dialogs) {
-    auto dialog_id = it.first;
-    auto time = it.second;
-    if (time < now - ONLINE_MEMBER_COUNT_CACHE_EXPIRE_TIME) {
-      expired_dialog_ids.push_back(dialog_id);
-      continue;
-    }
-
-    switch (dialog_id.get_type()) {
-      case DialogType::Chat:
-        td_->chat_manager_->update_chat_online_member_count(dialog_id.get_chat_id(), false);
-        break;
-      case DialogType::Channel:
-        update_channel_online_member_count(dialog_id.get_channel_id(), false);
-        break;
-      case DialogType::User:
-      case DialogType::SecretChat:
-      case DialogType::None:
-        UNREACHABLE();
-        break;
-    }
-  }
-  for (auto &dialog_id : expired_dialog_ids) {
-    online_member_dialogs.erase(dialog_id);
-    if (dialog_id.get_type() == DialogType::Channel) {
-      drop_cached_channel_participants(dialog_id.get_channel_id());
-    }
-  }
-  if (online_member_dialogs.empty()) {
-    user_online_member_dialogs_.erase(user_it);
-  }
-}
-
-void DialogParticipantManager::update_channel_online_member_count(ChannelId channel_id, bool is_from_server) {
-  if (!td_->chat_manager_->is_megagroup_channel(channel_id) ||
-      td_->chat_manager_->get_channel_effective_has_hidden_participants(channel_id,
-                                                                        "update_channel_online_member_count")) {
-    return;
-  }
-
-  auto it = cached_channel_participants_.find(channel_id);
-  if (it == cached_channel_participants_.end()) {
-    return;
-  }
-  update_dialog_online_member_count(it->second, DialogId(channel_id), is_from_server);
-}
-
-void DialogParticipantManager::update_dialog_online_member_count(const vector<DialogParticipant> &participants,
-                                                                 DialogId dialog_id, bool is_from_server) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  CHECK(dialog_id.is_valid());
-
-  int32 online_member_count = 0;
-  int32 unix_time = G()->unix_time();
-  for (const auto &participant : participants) {
-    if (participant.dialog_id_.get_type() != DialogType::User) {
-      continue;
-    }
-    auto user_id = participant.dialog_id_.get_user_id();
-    if (!td_->user_manager_->is_user_deleted(user_id) && !td_->user_manager_->is_user_bot(user_id)) {
-      if (td_->user_manager_->is_user_online(user_id, 0, unix_time)) {
-        online_member_count++;
-      }
-      if (is_from_server) {
-        auto &online_member_dialogs = user_online_member_dialogs_[user_id];
-        if (online_member_dialogs == nullptr) {
-          online_member_dialogs = make_unique<UserOnlineMemberDialogs>();
-        }
-        online_member_dialogs->online_member_dialogs_[dialog_id] = unix_time;
-      }
-    }
-  }
-  on_update_dialog_online_member_count(dialog_id, online_member_count, is_from_server);
-}
-
-Status DialogParticipantManager::can_manage_dialog_join_requests(DialogId dialog_id) {
-  TRY_STATUS(td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write,
-                                                       "can_manage_dialog_join_requests"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::SecretChat:
-    case DialogType::User:
-      return Status::Error(400, "The chat can't have join requests");
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      if (!td_->chat_manager_->get_chat_is_active(chat_id)) {
-        return Status::Error(400, "Chat is deactivated");
-      }
-      if (!td_->chat_manager_->get_chat_status(chat_id).can_manage_invite_links()) {
-        return Status::Error(400, "Not enough rights to manage chat join requests");
-      }
-      break;
-    }
-    case DialogType::Channel:
-      if (!td_->chat_manager_->get_channel_status(dialog_id.get_channel_id()).can_manage_invite_links()) {
-        return Status::Error(400, "Not enough rights to manage chat join requests");
-      }
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  return Status::OK();
-}
-
-void DialogParticipantManager::fix_pending_join_requests(DialogId dialog_id, int32 &pending_join_request_count,
-                                                         vector<UserId> &pending_join_request_user_ids) const {
-  bool need_drop_pending_join_requests = [&] {
-    if (pending_join_request_count < 0) {
-      return true;
-    }
-    switch (dialog_id.get_type()) {
-      case DialogType::User:
-      case DialogType::SecretChat:
-        return true;
-      case DialogType::Chat: {
-        auto chat_id = dialog_id.get_chat_id();
-        auto status = td_->chat_manager_->get_chat_status(chat_id);
-        if (!status.can_manage_invite_links()) {
-          return true;
-        }
-        break;
-      }
-      case DialogType::Channel: {
-        auto channel_id = dialog_id.get_channel_id();
-        auto status = td_->chat_manager_->get_channel_permissions(channel_id);
-        if (!status.can_manage_invite_links()) {
-          return true;
-        }
-        break;
-      }
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-    }
-    return false;
-  }();
-  if (need_drop_pending_join_requests) {
-    pending_join_request_count = 0;
-    pending_join_request_user_ids.clear();
-  } else if (static_cast<size_t>(pending_join_request_count) < pending_join_request_user_ids.size()) {
-    LOG(ERROR) << "Fix pending join request count from " << pending_join_request_count << " to "
-               << pending_join_request_user_ids.size();
-    pending_join_request_count = narrow_cast<int32>(pending_join_request_user_ids.size());
-  }
-
-  static constexpr size_t MAX_PENDING_JOIN_REQUESTS = 3;
-  if (pending_join_request_user_ids.size() > MAX_PENDING_JOIN_REQUESTS) {
-    pending_join_request_user_ids.resize(MAX_PENDING_JOIN_REQUESTS);
-  }
-}
-
-void DialogParticipantManager::get_dialog_join_requests(
-    DialogId dialog_id, const string &invite_link, const string &query,
-    td_api::object_ptr<td_api::chatJoinRequest> offset_request, int32 limit,
-    Promise<td_api::object_ptr<td_api::chatJoinRequests>> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_join_requests(dialog_id));
-
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-
-  UserId offset_user_id;
-  int32 offset_date = 0;
-  if (offset_request != nullptr) {
-    offset_user_id = UserId(offset_request->user_id_);
-    offset_date = offset_request->date_;
-  }
-
-  td_->create_handler<GetChatJoinRequestsQuery>(std::move(promise))
-      ->send(dialog_id, invite_link, query, offset_date, offset_user_id, limit);
-}
-
-void DialogParticipantManager::process_dialog_join_request(DialogId dialog_id, UserId user_id, bool approve,
-                                                           Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_join_requests(dialog_id));
-  td_->create_handler<HideChatJoinRequestQuery>(std::move(promise))->send(dialog_id, user_id, approve);
-}
-
-void DialogParticipantManager::process_dialog_join_requests(DialogId dialog_id, const string &invite_link, bool approve,
-                                                            Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_dialog_join_requests(dialog_id));
-  td_->create_handler<HideAllChatJoinRequestsQuery>(std::move(promise))->send(dialog_id, invite_link, approve);
-}
-
-void DialogParticipantManager::speculative_update_dialog_administrators(DialogId dialog_id, UserId user_id,
-                                                                        const DialogParticipantStatus &new_status,
-                                                                        const DialogParticipantStatus &old_status) {
-  if (new_status.is_administrator_member() == old_status.is_administrator_member() &&
-      new_status.get_rank() == old_status.get_rank()) {
-    return;
-  }
-  auto it = dialog_administrators_.find(dialog_id);
-  if (it == dialog_administrators_.end()) {
-    return;
-  }
-  auto administrators = it->second;
-  if (new_status.is_administrator_member()) {
-    bool is_found = false;
-    for (auto &administrator : administrators) {
-      if (administrator.get_user_id() == user_id) {
-        is_found = true;
-        if (administrator.get_rank() != new_status.get_rank() ||
-            administrator.is_creator() != new_status.is_creator()) {
-          administrator = DialogAdministrator(user_id, new_status.get_rank(), new_status.is_creator());
-          on_update_dialog_administrators(dialog_id, std::move(administrators), true, false);
-        }
-        break;
-      }
-    }
-    if (!is_found) {
-      administrators.emplace_back(user_id, new_status.get_rank(), new_status.is_creator());
-      on_update_dialog_administrators(dialog_id, std::move(administrators), true, false);
-    }
-  } else {
-    size_t i = 0;
-    while (i != administrators.size() && administrators[i].get_user_id() != user_id) {
-      i++;
-    }
-    if (i != administrators.size()) {
-      administrators.erase(administrators.begin() + i);
-      on_update_dialog_administrators(dialog_id, std::move(administrators), true, false);
-    }
-  }
-}
-
-td_api::object_ptr<td_api::chatAdministrators> DialogParticipantManager::get_chat_administrators_object(
-    const vector<DialogAdministrator> &dialog_administrators) {
-  auto administrator_objects = transform(dialog_administrators, [this](const DialogAdministrator &administrator) {
-    return administrator.get_chat_administrator_object(td_->user_manager_.get());
-  });
-  return td_api::make_object<td_api::chatAdministrators>(std::move(administrator_objects));
-}
-
-void DialogParticipantManager::get_dialog_administrators(
-    DialogId dialog_id, Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "get_dialog_administrators")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::SecretChat:
-      return promise.set_value(td_api::make_object<td_api::chatAdministrators>());
-    case DialogType::Chat:
-    case DialogType::Channel:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return;
-  }
-
-  auto it = dialog_administrators_.find(dialog_id);
-  if (it != dialog_administrators_.end()) {
-    reload_dialog_administrators(dialog_id, it->second, Auto());  // update administrators cache
-    return promise.set_value(get_chat_administrators_object(it->second));
-  }
-
-  if (G()->use_chat_info_database()) {
-    LOG(INFO) << "Load administrators of " << dialog_id << " from database";
-    G()->td_db()->get_sqlite_pmc()->get(
-        get_dialog_administrators_database_key(dialog_id),
-        PromiseCreator::lambda(
-            [actor_id = actor_id(this), dialog_id, promise = std::move(promise)](string value) mutable {
-              send_closure(actor_id, &DialogParticipantManager::on_load_dialog_administrators_from_database, dialog_id,
-                           std::move(value), std::move(promise));
-            }));
-    return;
-  }
-
-  reload_dialog_administrators(dialog_id, {}, std::move(promise));
-}
-
-string DialogParticipantManager::get_dialog_administrators_database_key(DialogId dialog_id) {
-  return PSTRING() << "adm" << (-dialog_id.get());
-}
-
-void DialogParticipantManager::on_load_dialog_administrators_from_database(
-    DialogId dialog_id, string value, Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (value.empty()) {
-    return reload_dialog_administrators(dialog_id, {}, std::move(promise));
-  }
-
-  vector<DialogAdministrator> administrators;
-  if (log_event_parse(administrators, value).is_error()) {
-    return reload_dialog_administrators(dialog_id, {}, std::move(promise));
-  }
-
-  LOG(INFO) << "Successfully loaded " << administrators.size() << " administrators in " << dialog_id
-            << " from database";
-
-  MultiPromiseActorSafe load_users_multipromise{"LoadUsersMultiPromiseActor"};
-  load_users_multipromise.add_promise(
-      PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, administrators,
-                              promise = std::move(promise)](Result<Unit> result) mutable {
-        send_closure(actor_id, &DialogParticipantManager::on_load_administrator_users_finished, dialog_id,
-                     std::move(administrators), std::move(result), std::move(promise));
-      }));
-
-  auto lock_promise = load_users_multipromise.get_promise();
-
-  for (auto &administrator : administrators) {
-    td_->user_manager_->get_user(administrator.get_user_id(), 3, load_users_multipromise.get_promise());
-  }
-
-  lock_promise.set_value(Unit());
-}
-
-void DialogParticipantManager::on_load_administrator_users_finished(
-    DialogId dialog_id, vector<DialogAdministrator> administrators, Result<> result,
-    Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (result.is_error()) {
-    return reload_dialog_administrators(dialog_id, {}, std::move(promise));
-  }
-
-  auto it = dialog_administrators_.emplace(dialog_id, std::move(administrators)).first;
-  reload_dialog_administrators(dialog_id, it->second, Auto());  // update administrators cache
-  promise.set_value(get_chat_administrators_object(it->second));
-}
-
-void DialogParticipantManager::on_update_dialog_administrators(DialogId dialog_id,
-                                                               vector<DialogAdministrator> &&administrators,
-                                                               bool have_access, bool from_database) {
-  LOG(INFO) << "Update administrators in " << dialog_id << " to " << administrators;
-  if (have_access) {
-    CHECK(dialog_id.is_valid());
-    std::sort(administrators.begin(), administrators.end(),
-              [](const DialogAdministrator &lhs, const DialogAdministrator &rhs) {
-                return lhs.get_user_id().get() < rhs.get_user_id().get();
-              });
-
-    auto it = dialog_administrators_.find(dialog_id);
-    if (it != dialog_administrators_.end()) {
-      if (it->second == administrators) {
-        return;
-      }
-      it->second = std::move(administrators);
-    } else {
-      it = dialog_administrators_.emplace(dialog_id, std::move(administrators)).first;
-    }
-
-    if (G()->use_chat_info_database() && !from_database) {
-      LOG(INFO) << "Save administrators of " << dialog_id << " to database";
-      G()->td_db()->get_sqlite_pmc()->set(get_dialog_administrators_database_key(dialog_id),
-                                          log_event_store(it->second).as_slice().str(), Auto());
-    }
-  } else {
-    dialog_administrators_.erase(dialog_id);
-    if (G()->use_chat_info_database()) {
-      G()->td_db()->get_sqlite_pmc()->erase(get_dialog_administrators_database_key(dialog_id), Auto());
-    }
-  }
-}
-
-void DialogParticipantManager::reload_dialog_administrators(
-    DialogId dialog_id, const vector<DialogAdministrator> &dialog_administrators,
-    Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise) {
-  auto dialog_type = dialog_id.get_type();
-  if (dialog_type == DialogType::Chat &&
-      !td_->chat_manager_->get_chat_permissions(dialog_id.get_chat_id()).is_member()) {
-    return promise.set_value(td_api::make_object<td_api::chatAdministrators>());
-  }
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (promise) {
-          if (result.is_ok()) {
-            send_closure(actor_id, &DialogParticipantManager::on_reload_dialog_administrators, dialog_id,
-                         std::move(promise));
-          } else {
-            promise.set_error(result.move_as_error());
-          }
-        }
-      });
-  switch (dialog_type) {
-    case DialogType::Chat:
-      td_->chat_manager_->load_chat_full(dialog_id.get_chat_id(), false, std::move(query_promise),
-                                         "reload_dialog_administrators");
-      break;
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      if (td_->chat_manager_->is_broadcast_channel(channel_id) &&
-          !td_->chat_manager_->get_channel_status(channel_id).is_administrator()) {
-        return query_promise.set_error(Status::Error(400, "Administrator list is inaccessible"));
-      }
-      auto hash = get_vector_hash(transform(dialog_administrators, [](const DialogAdministrator &administrator) {
-        return static_cast<uint64>(administrator.get_user_id().get());
-      }));
-      td_->create_handler<GetChannelAdministratorsQuery>(std::move(query_promise))->send(channel_id, hash);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogParticipantManager::on_reload_dialog_administrators(
-    DialogId dialog_id, Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto it = dialog_administrators_.find(dialog_id);
-  if (it != dialog_administrators_.end()) {
-    return promise.set_value(get_chat_administrators_object(it->second));
-  }
-
-  LOG(ERROR) << "Failed to load administrators in " << dialog_id;
-  promise.set_error(Status::Error(500, "Failed to find chat administrators"));
-}
-
-void DialogParticipantManager::send_update_chat_member(DialogId dialog_id, UserId agent_user_id, int32 date,
-                                                       const DialogInviteLink &invite_link, bool via_join_request,
-                                                       bool via_dialog_filter_invite_link,
-                                                       const DialogParticipant &old_dialog_participant,
-                                                       const DialogParticipant &new_dialog_participant) {
-  CHECK(td_->auth_manager_->is_bot());
-  td_->dialog_manager_->force_create_dialog(dialog_id, "send_update_chat_member", true);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatMember>(
-                   td_->dialog_manager_->get_chat_id_object(dialog_id, "updateChatMember"),
-                   td_->user_manager_->get_user_id_object(agent_user_id, "updateChatMember"), date,
-                   invite_link.get_chat_invite_link_object(td_->user_manager_.get()), via_join_request,
-                   via_dialog_filter_invite_link,
-                   td_->chat_manager_->get_chat_member_object(old_dialog_participant, "updateChatMember old"),
-                   td_->chat_manager_->get_chat_member_object(new_dialog_participant, "updateChatMember new")));
-}
-
-void DialogParticipantManager::on_update_bot_stopped(UserId user_id, int32 date, bool is_stopped, bool force) {
-  CHECK(td_->auth_manager_->is_bot());
-  if (date <= 0 || !td_->user_manager_->have_user_force(user_id, "on_update_bot_stopped")) {
-    LOG(ERROR) << "Receive invalid updateBotStopped by " << user_id << " at " << date;
-    return;
-  }
-  auto my_user_id = td_->user_manager_->get_my_id();
-  if (!td_->user_manager_->have_user_force(my_user_id, "on_update_bot_stopped 2")) {
-    if (!force) {
-      td_->user_manager_->get_me(PromiseCreator::lambda([actor_id = actor_id(this), user_id, date, is_stopped](Unit) {
-        send_closure(actor_id, &DialogParticipantManager::on_update_bot_stopped, user_id, date, is_stopped, true);
-      }));
-      return;
-    }
-    LOG(ERROR) << "Have no self-user to process updateBotStopped";
-  }
-
-  DialogParticipant old_dialog_participant(DialogId(my_user_id), user_id, date, DialogParticipantStatus::Banned(0));
-  DialogParticipant new_dialog_participant(DialogId(my_user_id), user_id, date, DialogParticipantStatus::Member(0));
-  if (is_stopped) {
-    std::swap(old_dialog_participant.status_, new_dialog_participant.status_);
-  }
-
-  send_update_chat_member(DialogId(user_id), user_id, date, DialogInviteLink(), false, false, old_dialog_participant,
-                          new_dialog_participant);
-}
-
-void DialogParticipantManager::on_update_chat_participant(
-    ChatId chat_id, UserId user_id, int32 date, DialogInviteLink invite_link, bool via_join_request,
-    telegram_api::object_ptr<telegram_api::ChatParticipant> old_participant,
-    telegram_api::object_ptr<telegram_api::ChatParticipant> new_participant) {
-  CHECK(td_->auth_manager_->is_bot());
-  if (!chat_id.is_valid() || !user_id.is_valid() || date <= 0 ||
-      (old_participant == nullptr && new_participant == nullptr)) {
-    LOG(ERROR) << "Receive invalid updateChatParticipant in " << chat_id << " by " << user_id << " at " << date << ": "
-               << to_string(old_participant) << " -> " << to_string(new_participant);
-    return;
-  }
-
-  if (!td_->chat_manager_->have_chat(chat_id)) {
-    LOG(ERROR) << "Receive updateChatParticipant in unknown " << chat_id;
-    return;
-  }
-  auto chat_date = td_->chat_manager_->get_chat_date(chat_id);
-  auto chat_status = td_->chat_manager_->get_chat_status(chat_id);
-  auto is_creator = chat_status.is_creator();
-
-  DialogParticipant old_dialog_participant;
-  DialogParticipant new_dialog_participant;
-  if (old_participant != nullptr) {
-    old_dialog_participant = DialogParticipant(std::move(old_participant), chat_date, is_creator);
-    if (new_participant == nullptr) {
-      new_dialog_participant = DialogParticipant::left(old_dialog_participant.dialog_id_);
-    } else {
-      new_dialog_participant = DialogParticipant(std::move(new_participant), chat_date, is_creator);
-    }
-  } else {
-    new_dialog_participant = DialogParticipant(std::move(new_participant), chat_date, is_creator);
-    old_dialog_participant = DialogParticipant::left(new_dialog_participant.dialog_id_);
-  }
-  if (old_dialog_participant.dialog_id_ != new_dialog_participant.dialog_id_ || !old_dialog_participant.is_valid() ||
-      !new_dialog_participant.is_valid()) {
-    LOG(ERROR) << "Receive wrong updateChatParticipant: " << old_dialog_participant << " -> " << new_dialog_participant;
-    return;
-  }
-  if (new_dialog_participant.dialog_id_ == DialogId(td_->user_manager_->get_my_id()) &&
-      new_dialog_participant.status_ != chat_status && false) {
-    LOG(ERROR) << "Have status " << chat_status << " after receiving updateChatParticipant in " << chat_id << " by "
-               << user_id << " at " << date << " from " << old_dialog_participant << " to " << new_dialog_participant;
-  }
-
-  send_update_chat_member(DialogId(chat_id), user_id, date, invite_link, via_join_request, false,
-                          old_dialog_participant, new_dialog_participant);
-}
-
-void DialogParticipantManager::on_update_channel_participant(
-    ChannelId channel_id, UserId user_id, int32 date, DialogInviteLink invite_link, bool via_join_request,
-    bool via_dialog_filter_invite_link, telegram_api::object_ptr<telegram_api::ChannelParticipant> old_participant,
-    telegram_api::object_ptr<telegram_api::ChannelParticipant> new_participant) {
-  CHECK(td_->auth_manager_->is_bot());
-  if (!channel_id.is_valid() || !user_id.is_valid() || date <= 0 ||
-      (old_participant == nullptr && new_participant == nullptr)) {
-    LOG(ERROR) << "Receive invalid updateChannelParticipant in " << channel_id << " by " << user_id << " at " << date
-               << ": " << to_string(old_participant) << " -> " << to_string(new_participant);
-    return;
-  }
-  if (!td_->chat_manager_->have_channel(channel_id)) {
-    LOG(ERROR) << "Receive updateChannelParticipant in unknown " << channel_id;
-    return;
-  }
-
-  DialogParticipant old_dialog_participant;
-  DialogParticipant new_dialog_participant;
-  auto channel_type = td_->chat_manager_->get_channel_type(channel_id);
-  if (old_participant != nullptr) {
-    old_dialog_participant = DialogParticipant(std::move(old_participant), channel_type);
-    if (new_participant == nullptr) {
-      new_dialog_participant = DialogParticipant::left(old_dialog_participant.dialog_id_);
-    } else {
-      new_dialog_participant = DialogParticipant(std::move(new_participant), channel_type);
-    }
-  } else {
-    new_dialog_participant = DialogParticipant(std::move(new_participant), channel_type);
-    old_dialog_participant = DialogParticipant::left(new_dialog_participant.dialog_id_);
-  }
-  if (old_dialog_participant.dialog_id_ != new_dialog_participant.dialog_id_ || !old_dialog_participant.is_valid() ||
-      !new_dialog_participant.is_valid()) {
-    LOG(ERROR) << "Receive wrong updateChannelParticipant: " << old_dialog_participant << " -> "
-               << new_dialog_participant;
-    return;
-  }
-  if (new_dialog_participant.status_.is_administrator() && user_id == td_->user_manager_->get_my_id() &&
-      !new_dialog_participant.status_.can_be_edited()) {
-    LOG(ERROR) << "Fix wrong can_be_edited in " << new_dialog_participant << " from " << channel_id << " changed from "
-               << old_dialog_participant;
-    new_dialog_participant.status_.toggle_can_be_edited();
-  }
-  if (old_dialog_participant.status_.is_banned() && DialogId(user_id) == old_dialog_participant.dialog_id_) {
-    LOG(ERROR) << "User changed self status in " << channel_id << " from " << old_dialog_participant << " to "
-               << new_dialog_participant;
-  }
-
-  if (old_dialog_participant.dialog_id_ == td_->dialog_manager_->get_my_dialog_id() &&
-      old_dialog_participant.status_.is_administrator() && !new_dialog_participant.status_.is_administrator()) {
-    drop_channel_participant_cache(channel_id);
-  } else if (have_channel_participant_cache(channel_id)) {
-    add_channel_participant_to_cache(channel_id, new_dialog_participant, true);
-  }
-
-  auto channel_status = td_->chat_manager_->get_channel_status(channel_id);
-  if (new_dialog_participant.dialog_id_ == td_->dialog_manager_->get_my_dialog_id() &&
-      new_dialog_participant.status_ != channel_status && false) {
-    LOG(ERROR) << "Have status " << channel_status << " after receiving updateChannelParticipant in " << channel_id
-               << " by " << user_id << " at " << date << " from " << old_dialog_participant << " to "
-               << new_dialog_participant;
-  }
-
-  send_update_chat_member(DialogId(channel_id), user_id, date, invite_link, via_join_request,
-                          via_dialog_filter_invite_link, old_dialog_participant, new_dialog_participant);
-}
-
-void DialogParticipantManager::on_update_chat_invite_requester(DialogId dialog_id, UserId user_id, string about,
-                                                               int32 date, DialogInviteLink invite_link) {
-  CHECK(td_->auth_manager_->is_bot());
-  if (date <= 0 || !td_->user_manager_->have_user_force(user_id, "on_update_chat_invite_requester") ||
-      !td_->dialog_manager_->have_dialog_info_force(dialog_id, "on_update_chat_invite_requester")) {
-    LOG(ERROR) << "Receive invalid updateBotChatInviteRequester by " << user_id << " in " << dialog_id << " at "
-               << date;
-    return;
-  }
-  DialogId user_dialog_id(user_id);
-  td_->dialog_manager_->force_create_dialog(dialog_id, "on_update_chat_invite_requester", true);
-  td_->dialog_manager_->force_create_dialog(user_dialog_id, "on_update_chat_invite_requester");
-
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateNewChatJoinRequest>(
-                   td_->dialog_manager_->get_chat_id_object(dialog_id, "updateNewChatJoinRequest"),
-                   td_api::make_object<td_api::chatJoinRequest>(
-                       td_->user_manager_->get_user_id_object(user_id, "updateNewChatJoinRequest"), date, about),
-                   td_->dialog_manager_->get_chat_id_object(user_dialog_id, "updateNewChatJoinRequest 2"),
-                   invite_link.get_chat_invite_link_object(td_->user_manager_.get())));
-}
-
-void DialogParticipantManager::get_dialog_participant(DialogId dialog_id, DialogId participant_dialog_id,
-                                                      Promise<td_api::object_ptr<td_api::chatMember>> &&promise) {
-  auto new_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), promise = std::move(promise)](Result<DialogParticipant> &&result) mutable {
-        TRY_RESULT_PROMISE(promise, dialog_participant, std::move(result));
-        send_closure(actor_id, &DialogParticipantManager::finish_get_dialog_participant, std::move(dialog_participant),
-                     std::move(promise));
-      });
-  do_get_dialog_participant(dialog_id, participant_dialog_id, std::move(new_promise));
-}
-
-void DialogParticipantManager::finish_get_dialog_participant(
-    DialogParticipant &&dialog_participant, Promise<td_api::object_ptr<td_api::chatMember>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto participant_dialog_id = dialog_participant.dialog_id_;
-  bool is_user = participant_dialog_id.get_type() == DialogType::User;
-  if ((is_user && !td_->user_manager_->have_user(participant_dialog_id.get_user_id())) ||
-      (!is_user && !td_->messages_manager_->have_dialog(participant_dialog_id))) {
-    return promise.set_error(Status::Error(400, "Member not found"));
-  }
-
-  promise.set_value(td_->chat_manager_->get_chat_member_object(dialog_participant, "finish_get_dialog_participant"));
-}
-
-void DialogParticipantManager::do_get_dialog_participant(DialogId dialog_id, DialogId participant_dialog_id,
-                                                         Promise<DialogParticipant> &&promise) {
-  LOG(INFO) << "Receive getChatMember request to get " << participant_dialog_id << " in " << dialog_id;
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "do_get_dialog_participant")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      auto my_user_id = td_->user_manager_->get_my_id();
-      auto peer_user_id = dialog_id.get_user_id();
-      if (participant_dialog_id == DialogId(my_user_id)) {
-        return promise.set_value(DialogParticipant::private_member(my_user_id, peer_user_id));
-      }
-      if (participant_dialog_id == dialog_id) {
-        return promise.set_value(DialogParticipant::private_member(peer_user_id, my_user_id));
-      }
-
-      return promise.set_error(Status::Error(400, "Member not found"));
-    }
-    case DialogType::Chat:
-      if (participant_dialog_id.get_type() != DialogType::User) {
-        return promise.set_value(DialogParticipant::left(participant_dialog_id));
-      }
-      return td_->chat_manager_->get_chat_participant(dialog_id.get_chat_id(), participant_dialog_id.get_user_id(),
-                                                      std::move(promise));
-    case DialogType::Channel:
-      return get_channel_participant(dialog_id.get_channel_id(), participant_dialog_id, std::move(promise));
-    case DialogType::SecretChat: {
-      auto my_user_id = td_->user_manager_->get_my_id();
-      auto peer_user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      if (participant_dialog_id == DialogId(my_user_id)) {
-        return promise.set_value(DialogParticipant::private_member(my_user_id, peer_user_id));
-      }
-      if (peer_user_id.is_valid() && participant_dialog_id == DialogId(peer_user_id)) {
-        return promise.set_value(DialogParticipant::private_member(peer_user_id, my_user_id));
-      }
-
-      return promise.set_error(Status::Error(400, "Member not found"));
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return;
-  }
-}
-
-void DialogParticipantManager::get_channel_participant(ChannelId channel_id, DialogId participant_dialog_id,
-                                                       Promise<DialogParticipant> &&promise) {
-  LOG(INFO) << "Trying to get " << participant_dialog_id << " as member of " << channel_id;
-
-  auto input_peer = td_->dialog_manager_->get_input_peer(participant_dialog_id, AccessRights::Know);
-  if (input_peer == nullptr) {
-    return promise.set_error(Status::Error(400, "Member not found"));
-  }
-  if (td_->chat_manager_->is_broadcast_channel(channel_id) &&
-      !td_->chat_manager_->get_channel_status(channel_id).is_administrator()) {
-    return promise.set_error(Status::Error(400, "Member list is inaccessible"));
-  }
-
-  if (have_channel_participant_cache(channel_id)) {
-    auto *participant = get_channel_participant_from_cache(channel_id, participant_dialog_id);
-    if (participant != nullptr) {
-      return promise.set_value(DialogParticipant{*participant});
-    }
-  }
-
-  if (td_->auth_manager_->is_bot() && participant_dialog_id == td_->dialog_manager_->get_my_dialog_id() &&
-      td_->chat_manager_->have_channel(channel_id)) {
-    // bots don't need inviter information
-    td_->chat_manager_->reload_channel(channel_id, Auto(), "get_channel_participant");
-    return promise.set_value(DialogParticipant{participant_dialog_id, participant_dialog_id.get_user_id(),
-                                               td_->chat_manager_->get_channel_date(channel_id),
-                                               td_->chat_manager_->get_channel_status(channel_id)});
-  }
-
-  auto on_result_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), channel_id, participant_dialog_id,
-                              promise = std::move(promise)](Result<DialogParticipant> r_dialog_participant) mutable {
-        TRY_RESULT_PROMISE(promise, dialog_participant, std::move(r_dialog_participant));
-        send_closure(actor_id, &DialogParticipantManager::finish_get_channel_participant, channel_id,
-                     participant_dialog_id, std::move(dialog_participant), std::move(promise));
-      });
-
-  td_->create_handler<GetChannelParticipantQuery>(std::move(on_result_promise))
-      ->send(channel_id, participant_dialog_id, std::move(input_peer));
-}
-
-void DialogParticipantManager::finish_get_channel_participant(ChannelId channel_id, DialogId participant_dialog_id,
-                                                              DialogParticipant &&dialog_participant,
-                                                              Promise<DialogParticipant> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  CHECK(dialog_participant.is_valid());  // checked in GetChannelParticipantQuery
-  if (dialog_participant.dialog_id_ != participant_dialog_id) {
-    LOG(ERROR) << "Receive " << dialog_participant.dialog_id_ << " in " << channel_id << " instead of requested "
-               << participant_dialog_id;
-    return promise.set_error(Status::Error(500, "Data is unavailable"));
-  }
-
-  LOG(INFO) << "Receive " << dialog_participant.dialog_id_ << " as a member of a channel " << channel_id;
-
-  dialog_participant.status_.update_restrictions();
-  if (have_channel_participant_cache(channel_id)) {
-    add_channel_participant_to_cache(channel_id, dialog_participant, false);
-  }
-  promise.set_value(std::move(dialog_participant));
-}
-
-std::pair<int32, vector<DialogId>> DialogParticipantManager::search_among_dialogs(const vector<DialogId> &dialog_ids,
-                                                                                  const string &query,
-                                                                                  int32 limit) const {
-  Hints hints;
-
-  auto unix_time = G()->unix_time();
-  for (auto dialog_id : dialog_ids) {
-    if (!td_->dialog_manager_->have_dialog_info(dialog_id)) {
-      continue;
-    }
-    if (query.empty()) {
-      hints.add(dialog_id.get(), Slice(" "));
-    } else {
-      hints.add(dialog_id.get(), td_->dialog_manager_->get_dialog_search_text(dialog_id));
-    }
-    if (dialog_id.get_type() == DialogType::User) {
-      hints.set_rating(dialog_id.get(), -td_->user_manager_->get_user_was_online(dialog_id.get_user_id(), unix_time));
-    }
-  }
-
-  auto result = hints.search(query, limit, true);
-  return {narrow_cast<int32>(result.first), transform(result.second, [](int64 key) { return DialogId(key); })};
-}
-
-DialogParticipants DialogParticipantManager::search_private_chat_participants(UserId peer_user_id, const string &query,
-                                                                              int32 limit,
-                                                                              DialogParticipantFilter filter) const {
-  auto my_user_id = td_->user_manager_->get_my_id();
-  vector<DialogId> dialog_ids;
-  if (filter.is_dialog_participant_suitable(td_, DialogParticipant::private_member(my_user_id, peer_user_id))) {
-    dialog_ids.push_back(DialogId(my_user_id));
-  }
-  if (peer_user_id.is_valid() && peer_user_id != my_user_id &&
-      filter.is_dialog_participant_suitable(td_, DialogParticipant::private_member(peer_user_id, my_user_id))) {
-    dialog_ids.push_back(DialogId(peer_user_id));
-  }
-
-  auto result = search_among_dialogs(dialog_ids, query, limit);
-  return {result.first, transform(result.second, [&](DialogId dialog_id) {
-            auto user_id = dialog_id.get_user_id();
-            return DialogParticipant::private_member(user_id, user_id == my_user_id ? peer_user_id : my_user_id);
-          })};
-}
-
-void DialogParticipantManager::search_chat_participants(ChatId chat_id, const string &query, int32 limit,
-                                                        DialogParticipantFilter filter,
-                                                        Promise<DialogParticipants> &&promise) {
-  if (limit < 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be non-negative"));
-  }
-
-  auto load_chat_full_promise = PromiseCreator::lambda([actor_id = actor_id(this), chat_id, query, limit, filter,
-                                                        promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      send_closure(actor_id, &DialogParticipantManager::do_search_chat_participants, chat_id, query, limit, filter,
-                   std::move(promise));
-    }
-  });
-  td_->chat_manager_->load_chat_full(chat_id, false, std::move(load_chat_full_promise), "search_chat_participants");
-}
-
-void DialogParticipantManager::do_search_chat_participants(ChatId chat_id, const string &query, int32 limit,
-                                                           DialogParticipantFilter filter,
-                                                           Promise<DialogParticipants> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  const auto *participants = td_->chat_manager_->get_chat_participants(chat_id);
-  if (participants == nullptr) {
-    return promise.set_error(Status::Error(500, "Can't find basic group full info"));
-  }
-
-  vector<DialogId> dialog_ids;
-  for (const auto &participant : *participants) {
-    if (filter.is_dialog_participant_suitable(td_, participant)) {
-      dialog_ids.push_back(participant.dialog_id_);
-    }
-  }
-
-  int32 total_count;
-  std::tie(total_count, dialog_ids) = search_among_dialogs(dialog_ids, query, limit);
-  td_->story_manager_->on_view_dialog_active_stories(dialog_ids);
-  vector<DialogParticipant> dialog_participants;
-  for (auto dialog_id : dialog_ids) {
-    for (const auto &participant : *participants) {
-      if (participant.dialog_id_ == dialog_id) {
-        dialog_participants.push_back(participant);
-        break;
-      }
-    }
-  }
-  promise.set_value(DialogParticipants{total_count, std::move(dialog_participants)});
-}
-
-void DialogParticipantManager::get_channel_participants(ChannelId channel_id,
-                                                        td_api::object_ptr<td_api::SupergroupMembersFilter> &&filter,
-                                                        string additional_query, int32 offset, int32 limit,
-                                                        int32 additional_limit, Promise<DialogParticipants> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_GET_CHANNEL_PARTICIPANTS) {
-    limit = MAX_GET_CHANNEL_PARTICIPANTS;
-  }
-
-  if (offset < 0) {
-    return promise.set_error(Status::Error(400, "Parameter offset must be non-negative"));
-  }
-
-  if (td_->chat_manager_->is_broadcast_channel(channel_id) &&
-      !td_->chat_manager_->get_channel_status(channel_id).is_administrator()) {
-    return promise.set_error(Status::Error(400, "Member list is inaccessible"));
-  }
-
-  ChannelParticipantFilter participant_filter(filter);
-  auto get_channel_participants_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), channel_id, filter = participant_filter,
-       additional_query = std::move(additional_query), offset, limit, additional_limit, promise = std::move(promise)](
-          Result<telegram_api::object_ptr<telegram_api::channels_channelParticipants>> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &DialogParticipantManager::on_get_channel_participants, channel_id, std::move(filter),
-                       offset, limit, std::move(additional_query), additional_limit, result.move_as_ok(),
-                       std::move(promise));
-        }
-      });
-  td_->create_handler<GetChannelParticipantsQuery>(std::move(get_channel_participants_promise))
-      ->send(channel_id, participant_filter, offset, limit);
-}
-
-void DialogParticipantManager::on_get_channel_participants(
-    ChannelId channel_id, ChannelParticipantFilter &&filter, int32 offset, int32 limit, string additional_query,
-    int32 additional_limit, telegram_api::object_ptr<telegram_api::channels_channelParticipants> &&channel_participants,
-    Promise<DialogParticipants> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  td_->user_manager_->on_get_users(std::move(channel_participants->users_), "on_get_channel_participants");
-  td_->chat_manager_->on_get_chats(std::move(channel_participants->chats_), "on_get_channel_participants");
-  int32 total_count = channel_participants->count_;
-  auto participants = std::move(channel_participants->participants_);
-  LOG(INFO) << "Receive " << participants.size() << " " << filter << " members in " << channel_id;
-
-  bool is_full = offset == 0 && static_cast<int32>(participants.size()) < limit && total_count < limit;
-  bool has_hidden_participants =
-      td_->chat_manager_->get_channel_effective_has_hidden_participants(channel_id, "on_get_channel_participants");
-  bool is_full_recent = is_full && filter.is_recent() && !has_hidden_participants;
-
-  auto channel_type = td_->chat_manager_->get_channel_type(channel_id);
-  vector<DialogParticipant> result;
-  for (auto &participant_ptr : participants) {
-    auto debug_participant = to_string(participant_ptr);
-    result.emplace_back(std::move(participant_ptr), channel_type);
-    const auto &participant = result.back();
-    UserId participant_user_id;
-    if (participant.dialog_id_.get_type() == DialogType::User) {
-      participant_user_id = participant.dialog_id_.get_user_id();
-    }
-    if (!participant.is_valid() || (filter.is_bots() && !td_->user_manager_->is_user_bot(participant_user_id)) ||
-        (filter.is_administrators() && !participant.status_.is_administrator()) ||
-        ((filter.is_recent() || filter.is_contacts() || filter.is_search()) && !participant.status_.is_member()) ||
-        (filter.is_contacts() && !td_->user_manager_->is_user_contact(participant_user_id)) ||
-        (filter.is_restricted() && !participant.status_.is_restricted()) ||
-        (filter.is_banned() && !participant.status_.is_banned())) {
-      bool skip_error = ((filter.is_administrators() || filter.is_bots()) &&
-                         td_->user_manager_->is_user_deleted(participant_user_id)) ||
-                        (filter.is_contacts() && participant_user_id == td_->user_manager_->get_my_id());
-      if (!skip_error) {
-        LOG(ERROR) << "Receive " << participant << ", while searching for " << filter << " in " << channel_id
-                   << " with offset " << offset << " and limit " << limit << ": " << oneline(debug_participant);
-      }
-      result.pop_back();
-      total_count--;
-    }
-  }
-
-  if (total_count < narrow_cast<int32>(result.size())) {
-    LOG(ERROR) << "Receive total_count = " << total_count << ", but have at least " << result.size() << " " << filter
-               << " members in " << channel_id;
-    total_count = static_cast<int32>(result.size());
-  } else if (is_full && total_count > static_cast<int32>(result.size())) {
-    LOG(ERROR) << "Fix total number of " << filter << " members from " << total_count << " to " << result.size()
-               << " in " << channel_id << " for request with limit " << limit << " and received " << participants.size()
-               << " results";
-    total_count = static_cast<int32>(result.size());
-  }
-
-  auto is_megagroup = td_->chat_manager_->is_megagroup_channel(channel_id);
-  const auto max_participant_count = is_megagroup ? 975 : 195;
-  auto participant_count =
-      filter.is_recent() && !has_hidden_participants && total_count != 0 && total_count < max_participant_count
-          ? total_count
-          : -1;
-  int32 administrator_count =
-      filter.is_administrators() || (filter.is_recent() && has_hidden_participants) ? total_count : -1;
-  if (is_full && (filter.is_administrators() || filter.is_bots() || filter.is_recent())) {
-    vector<DialogAdministrator> administrators;
-    vector<UserId> bot_user_ids;
-    {
-      if (filter.is_recent()) {
-        for (const auto &participant : result) {
-          if (participant.dialog_id_.get_type() == DialogType::User) {
-            auto participant_user_id = participant.dialog_id_.get_user_id();
-            if (participant.status_.is_administrator()) {
-              administrators.emplace_back(participant_user_id, participant.status_.get_rank(),
-                                          participant.status_.is_creator());
-            }
-            if (is_full_recent && td_->user_manager_->is_user_bot(participant_user_id)) {
-              bot_user_ids.push_back(participant_user_id);
-            }
-          }
-        }
-        administrator_count = narrow_cast<int32>(administrators.size());
-
-        if (is_megagroup && !td_->auth_manager_->is_bot() && is_full_recent) {
-          set_cached_channel_participants(channel_id, result);
-          update_channel_online_member_count(channel_id, true);
-        }
-      } else if (filter.is_administrators()) {
-        for (const auto &participant : result) {
-          if (participant.dialog_id_.get_type() == DialogType::User) {
-            administrators.emplace_back(participant.dialog_id_.get_user_id(), participant.status_.get_rank(),
-                                        participant.status_.is_creator());
-          }
-        }
-      } else if (filter.is_bots()) {
-        bot_user_ids = transform(result, [](const DialogParticipant &participant) {
-          CHECK(participant.dialog_id_.get_type() == DialogType::User);
-          return participant.dialog_id_.get_user_id();
-        });
-      }
-    }
-    if (filter.is_administrators() || filter.is_recent()) {
-      on_update_dialog_administrators(DialogId(channel_id), std::move(administrators), true, false);
-    }
-    if (filter.is_bots() || is_full_recent) {
-      td_->chat_manager_->on_update_channel_bot_user_ids(channel_id, std::move(bot_user_ids));
-    }
-  }
-  if (have_channel_participant_cache(channel_id)) {
-    for (const auto &participant : result) {
-      add_channel_participant_to_cache(channel_id, participant, false);
-    }
-  }
-
-  if (participant_count != -1) {
-    td_->chat_manager_->on_update_channel_participant_count(channel_id, participant_count);
-  }
-  if (administrator_count != -1) {
-    td_->chat_manager_->on_update_channel_administrator_count(channel_id, administrator_count);
-  }
-
-  if (!additional_query.empty()) {
-    auto dialog_ids = transform(result, [](const DialogParticipant &participant) { return participant.dialog_id_; });
-    std::pair<int32, vector<DialogId>> result_dialog_ids =
-        search_among_dialogs(dialog_ids, additional_query, additional_limit);
-
-    total_count = result_dialog_ids.first;
-    FlatHashSet<DialogId, DialogIdHash> result_dialog_ids_set;
-    for (auto result_dialog_id : result_dialog_ids.second) {
-      CHECK(result_dialog_id.is_valid());
-      result_dialog_ids_set.insert(result_dialog_id);
-    }
-    auto all_participants = std::move(result);
-    result.clear();
-    for (auto &participant : all_participants) {
-      if (result_dialog_ids_set.count(participant.dialog_id_)) {
-        result_dialog_ids_set.erase(participant.dialog_id_);
-        result.push_back(std::move(participant));
-      }
-    }
-  }
-
-  vector<DialogId> participant_dialog_ids;
-  for (const auto &participant : result) {
-    participant_dialog_ids.push_back(participant.dialog_id_);
-  }
-  td_->story_manager_->on_view_dialog_active_stories(std::move(participant_dialog_ids));
-
-  promise.set_value(DialogParticipants{total_count, std::move(result)});
-}
-
-void DialogParticipantManager::search_dialog_participants(DialogId dialog_id, const string &query, int32 limit,
-                                                          DialogParticipantFilter filter,
-                                                          Promise<DialogParticipants> &&promise) {
-  LOG(INFO) << "Receive searchChatMembers request to search for \"" << query << "\" in " << dialog_id << " with filter "
-            << filter;
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "search_dialog_participants")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (limit < 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be non-negative"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_value(search_private_chat_participants(dialog_id.get_user_id(), query, limit, filter));
-    case DialogType::Chat:
-      return search_chat_participants(dialog_id.get_chat_id(), query, limit, filter, std::move(promise));
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      if (filter.has_query()) {
-        return get_channel_participants(channel_id, filter.get_supergroup_members_filter_object(query), string(), 0,
-                                        limit, 0, std::move(promise));
-      } else {
-        return get_channel_participants(channel_id, filter.get_supergroup_members_filter_object(string()), query, 0,
-                                        100, limit, std::move(promise));
-      }
-    }
-    case DialogType::SecretChat: {
-      auto peer_user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      return promise.set_value(search_private_chat_participants(peer_user_id, query, limit, filter));
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      promise.set_error(Status::Error(500, "Wrong chat type"));
-  }
-}
-
-void DialogParticipantManager::add_dialog_participant(
-    DialogId dialog_id, UserId user_id, int32 forward_limit,
-    Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "add_dialog_participant")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't add members to a private chat"));
-    case DialogType::Chat:
-      return add_chat_participant(dialog_id.get_chat_id(), user_id, forward_limit, std::move(promise));
-    case DialogType::Channel:
-      return add_channel_participant(dialog_id.get_channel_id(), user_id, DialogParticipantStatus::Left(),
-                                     std::move(promise));
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't add members to a secret chat"));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogParticipantManager::add_dialog_participants(
-    DialogId dialog_id, const vector<UserId> &user_ids,
-    Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "add_dialog_participants")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't add members to a private chat"));
-    case DialogType::Chat:
-      if (user_ids.size() == 1) {
-        return add_chat_participant(dialog_id.get_chat_id(), user_ids[0], 0, std::move(promise));
-      }
-      return promise.set_error(Status::Error(400, "Can't add many members at once to a basic group chat"));
-    case DialogType::Channel:
-      return add_channel_participants(dialog_id.get_channel_id(), user_ids, std::move(promise));
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't add members to a secret chat"));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogParticipantManager::set_dialog_participant_status(
-    DialogId dialog_id, DialogId participant_dialog_id,
-    td_api::object_ptr<td_api::ChatMemberStatus> &&chat_member_status, Promise<Unit> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "set_dialog_participant_status")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Chat member status can't be changed in private chats"));
-    case DialogType::Chat: {
-      auto status = get_dialog_participant_status(chat_member_status, ChannelType::Unknown);
-      if (participant_dialog_id.get_type() != DialogType::User) {
-        if (status == DialogParticipantStatus::Left()) {
-          return promise.set_value(Unit());
-        } else {
-          return promise.set_error(Status::Error(400, "Chats can't be members of basic groups"));
-        }
-      }
-      return set_chat_participant_status(dialog_id.get_chat_id(), participant_dialog_id.get_user_id(), status, false,
-                                         std::move(promise));
-    }
-    case DialogType::Channel:
-      return set_channel_participant_status(dialog_id.get_channel_id(), participant_dialog_id,
-                                            std::move(chat_member_status), std::move(promise));
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Chat member status can't be changed in secret chats"));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogParticipantManager::ban_dialog_participant(DialogId dialog_id, DialogId participant_dialog_id,
-                                                      int32 banned_until_date, bool revoke_messages,
-                                                      Promise<Unit> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "ban_dialog_participant")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't ban members in private chats"));
-    case DialogType::Chat:
-      if (participant_dialog_id.get_type() != DialogType::User) {
-        return promise.set_error(Status::Error(400, "Can't ban chats in basic groups"));
-      }
-      return delete_chat_participant(dialog_id.get_chat_id(), participant_dialog_id.get_user_id(), revoke_messages,
-                                     std::move(promise));
-    case DialogType::Channel:
-      // must use td_api::chatMemberStatusBanned to properly fix banned_until_date
-      return set_channel_participant_status(dialog_id.get_channel_id(), participant_dialog_id,
-                                            td_api::make_object<td_api::chatMemberStatusBanned>(banned_until_date),
-                                            std::move(promise));
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't ban members in secret chats"));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogParticipantManager::leave_dialog(DialogId dialog_id, Promise<Unit> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "leave_dialog")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't leave private chats"));
-    case DialogType::Chat:
-      return delete_chat_participant(dialog_id.get_chat_id(), td_->user_manager_->get_my_id(), false,
-                                     std::move(promise));
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      auto old_status = td_->chat_manager_->get_channel_status(channel_id);
-      auto new_status = old_status;
-      new_status.set_is_member(false);
-      return restrict_channel_participant(channel_id, td_->dialog_manager_->get_my_dialog_id(), std::move(new_status),
-                                          std::move(old_status), std::move(promise));
-    }
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't leave secret chats"));
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-Promise<td_api::object_ptr<td_api::failedToAddMembers>> DialogParticipantManager::wrap_failed_to_add_members_promise(
-    Promise<Unit> &&promise) {
-  return PromiseCreator::lambda(
-      [promise = std::move(promise)](Result<td_api::object_ptr<td_api::failedToAddMembers>> &&result) mutable {
-        if (result.is_ok()) {
-          if (result.ok()->failed_to_add_members_.empty()) {
-            promise.set_value(Unit());
-          } else {
-            promise.set_error(Status::Error(403, "USER_PRIVACY_RESTRICTED"));
-          }
-        } else {
-          promise.set_error(result.move_as_error());
-        }
-      });
-}
-
-void DialogParticipantManager::add_chat_participant(ChatId chat_id, UserId user_id, int32 forward_limit,
-                                                    Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise) {
-  if (!td_->chat_manager_->get_chat_is_active(chat_id)) {
-    if (!td_->chat_manager_->have_chat(chat_id)) {
-      return promise.set_error(Status::Error(400, "Chat info not found"));
-    }
-    return promise.set_error(Status::Error(400, "Chat is deactivated"));
-  }
-  if (forward_limit < 0) {
-    return promise.set_error(Status::Error(400, "Can't forward negative number of messages"));
-  }
-  auto permissions = td_->chat_manager_->get_chat_permissions(chat_id);
-  if (user_id != td_->user_manager_->get_my_id()) {
-    if (!permissions.can_invite_users()) {
-      return promise.set_error(Status::Error(400, "Not enough rights to invite members to the group chat"));
-    }
-  } else if (permissions.is_banned()) {
-    return promise.set_error(Status::Error(400, "User was kicked from the chat"));
-  }
-  // TODO upper bound on forward_limit
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  // TODO invoke after
-  td_->create_handler<AddChatUserQuery>(std::move(promise))
-      ->send(chat_id, user_id, std::move(input_user), forward_limit);
-}
-
-void DialogParticipantManager::set_chat_participant_status(ChatId chat_id, UserId user_id,
-                                                           DialogParticipantStatus status, bool is_recursive,
-                                                           Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (!status.is_member()) {
-    return delete_chat_participant(chat_id, user_id, false, std::move(promise));
-  }
-  if (status.is_creator()) {
-    return promise.set_error(Status::Error(400, "Can't change owner in basic group chats"));
-  }
-  if (status.is_restricted()) {
-    return promise.set_error(Status::Error(400, "Can't restrict users in basic group chats"));
-  }
-
-  if (!td_->chat_manager_->get_chat_is_active(chat_id)) {
-    if (!td_->chat_manager_->have_chat(chat_id)) {
-      return promise.set_error(Status::Error(400, "Chat info not found"));
-    }
-    return promise.set_error(Status::Error(400, "Chat is deactivated"));
-  }
-
-  if (!is_recursive) {
-    auto load_chat_full_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), chat_id, user_id, status = std::move(status),
-                                promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &DialogParticipantManager::set_chat_participant_status, chat_id, user_id, status,
-                         true, std::move(promise));
-          }
-        });
-    return td_->chat_manager_->load_chat_full(chat_id, false, std::move(load_chat_full_promise),
-                                              "set_chat_participant_status");
-  }
-
-  auto participant = td_->chat_manager_->get_chat_participant(chat_id, user_id);
-  if (participant == nullptr && !status.is_administrator()) {
-    // the user isn't a member, but needs to be added
-    return add_chat_participant(chat_id, user_id, 0, wrap_failed_to_add_members_promise(std::move(promise)));
-  }
-
-  auto permissions = td_->chat_manager_->get_chat_permissions(chat_id);
-  if (!permissions.can_promote_members()) {
-    return promise.set_error(Status::Error(400, "Need owner rights in the group chat"));
-  }
-
-  if (user_id == td_->user_manager_->get_my_id()) {
-    return promise.set_error(Status::Error(400, "Can't promote or demote self"));
-  }
-
-  if (participant == nullptr) {
-    // the user must be added first
-    CHECK(status.is_administrator());
-    auto add_chat_participant_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), chat_id, user_id, promise = std::move(promise)](
-                                   Result<td_api::object_ptr<td_api::failedToAddMembers>> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else if (!result.ok()->failed_to_add_members_.empty()) {
-            promise.set_error(Status::Error(403, "USER_PRIVACY_RESTRICTED"));
-          } else {
-            send_closure(actor_id, &DialogParticipantManager::send_edit_chat_admin_query, chat_id, user_id, true,
-                         std::move(promise));
-          }
-        });
-
-    return add_chat_participant(chat_id, user_id, 0, std::move(add_chat_participant_promise));
-  }
-
-  send_edit_chat_admin_query(chat_id, user_id, status.is_administrator(), std::move(promise));
-}
-
-void DialogParticipantManager::send_edit_chat_admin_query(ChatId chat_id, UserId user_id, bool is_administrator,
-                                                          Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  td_->create_handler<EditChatAdminQuery>(std::move(promise))
-      ->send(chat_id, user_id, std::move(input_user), is_administrator);
-}
-
-void DialogParticipantManager::delete_chat_participant(ChatId chat_id, UserId user_id, bool revoke_messages,
-                                                       Promise<Unit> &&promise) {
-  if (!td_->chat_manager_->get_chat_is_active(chat_id)) {
-    if (!td_->chat_manager_->have_chat(chat_id)) {
-      return promise.set_error(Status::Error(400, "Chat info not found"));
-    }
-    return promise.set_error(Status::Error(400, "Chat is deactivated"));
-  }
-
-  auto my_id = td_->user_manager_->get_my_id();
-  auto permissions = td_->chat_manager_->get_chat_permissions(chat_id);
-  if (permissions.is_left()) {
-    if (user_id == my_id) {
-      if (revoke_messages) {
-        return td_->messages_manager_->delete_dialog_history(DialogId(chat_id), true, false, std::move(promise));
-      }
-      return promise.set_value(Unit());
-    } else {
-      return promise.set_error(Status::Error(400, "Not in the chat"));
-    }
-  }
-  /* TODO
-  if (user_id != my_id) {
-    if (!permissions.is_creator()) {  // creator can delete anyone
-      auto participant = get_chat_participant(chat_id, user_id);
-      if (participant != nullptr) {  // if have no information about participant, just send request to the server
-        if (c->everyone_is_administrator) {
-          // if all are administrators, only invited by me participants can be deleted
-          if (participant->inviter_user_id_ != my_id) {
-            return promise.set_error(Status::Error(400, "Need to be inviter of a user to kick it from a basic group"));
-          }
-        } else {
-          // otherwise, only creator can kick administrators
-          if (participant->status_.is_administrator()) {
-            return promise.set_error(
-                Status::Error(400, "Only the creator of a basic group can kick group administrators"));
-          }
-          // regular users can be kicked by administrators and their inviters
-          if (!permissions.is_administrator() && participant->inviter_user_id_ != my_id) {
-            return promise.set_error(Status::Error(400, "Need to be inviter of a user to kick it from a basic group"));
-          }
-        }
-      }
-    }
-  }
-  */
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  // TODO invoke after
-  td_->create_handler<DeleteChatUserQuery>(std::move(promise))->send(chat_id, std::move(input_user), revoke_messages);
-}
-
-void DialogParticipantManager::add_channel_participant(
-    ChannelId channel_id, UserId user_id, const DialogParticipantStatus &old_status,
-    Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Bots can't add new chat members"));
-  }
-
-  if (!td_->chat_manager_->have_channel(channel_id)) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  if (user_id == td_->user_manager_->get_my_id()) {
-    // join the channel
-    auto my_status = td_->chat_manager_->get_channel_status(channel_id);
-    if (my_status.is_banned()) {
-      return promise.set_error(Status::Error(400, "Can't return to kicked from chat"));
-    }
-    if (my_status.is_member()) {
-      return promise.set_value(MissingInvitees().get_failed_to_add_members_object(td_->user_manager_.get()));
-    }
-
-    auto &queries = join_channel_queries_[channel_id];
-    queries.push_back(std::move(promise));
-    if (queries.size() == 1u) {
-      auto new_status = my_status;
-      bool was_speculatively_updated = false;
-      if (!td_->chat_manager_->get_channel_join_request(channel_id)) {
-        new_status.set_is_member(true);
-        was_speculatively_updated = true;
-        speculative_add_channel_user(channel_id, user_id, new_status, my_status);
-      }
-      auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), channel_id, was_speculatively_updated,
-                                                   old_status = std::move(my_status),
-                                                   new_status = std::move(new_status)](Result<Unit> result) mutable {
-        send_closure(actor_id, &DialogParticipantManager::on_join_channel, channel_id, was_speculatively_updated,
-                     std::move(old_status), std::move(new_status), std::move(result));
-      });
-      td_->create_handler<JoinChannelQuery>(std::move(query_promise))->send(channel_id);
-    }
-    return;
-  }
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_invite_users()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to invite members to the supergroup chat"));
-  }
-
-  speculative_add_channel_user(channel_id, user_id, DialogParticipantStatus::Member(0), old_status);
-  vector<tl_object_ptr<telegram_api::InputUser>> input_users;
-  input_users.push_back(std::move(input_user));
-  td_->create_handler<InviteToChannelQuery>(std::move(promise))->send(channel_id, {user_id}, std::move(input_users));
-}
-
-void DialogParticipantManager::on_join_channel(ChannelId channel_id, bool was_speculatively_updated,
-                                               DialogParticipantStatus &&old_status,
-                                               DialogParticipantStatus &&new_status, Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto it = join_channel_queries_.find(channel_id);
-  CHECK(it != join_channel_queries_.end());
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  join_channel_queries_.erase(it);
-
-  if (result.is_ok()) {
-    for (auto &promise : promises) {
-      promise.set_value(MissingInvitees().get_failed_to_add_members_object(td_->user_manager_.get()));
-    }
-  } else {
-    if (was_speculatively_updated) {
-      speculative_add_channel_user(channel_id, td_->user_manager_->get_my_id(), old_status, new_status);
-    }
-    fail_promises(promises, result.move_as_error());
-  }
-}
-
-void DialogParticipantManager::add_channel_participants(
-    ChannelId channel_id, const vector<UserId> &user_ids,
-    Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Bots can't add new chat members"));
-  }
-
-  if (!td_->chat_manager_->have_channel(channel_id)) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_invite_users()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to invite members to the supergroup chat"));
-  }
-
-  vector<tl_object_ptr<telegram_api::InputUser>> input_users;
-  for (auto user_id : user_ids) {
-    TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-    if (user_id == td_->user_manager_->get_my_id()) {
-      // can't invite self
-      continue;
-    }
-    input_users.push_back(std::move(input_user));
-
-    speculative_add_channel_user(channel_id, user_id, DialogParticipantStatus::Member(0),
-                                 DialogParticipantStatus::Left());
-  }
-
-  if (input_users.empty()) {
-    return promise.set_value(MissingInvitees().get_failed_to_add_members_object(td_->user_manager_.get()));
-  }
-
-  td_->create_handler<InviteToChannelQuery>(std::move(promise))->send(channel_id, user_ids, std::move(input_users));
-}
-
-void DialogParticipantManager::set_channel_participant_status(
-    ChannelId channel_id, DialogId participant_dialog_id,
-    td_api::object_ptr<td_api::ChatMemberStatus> &&chat_member_status, Promise<Unit> &&promise) {
-  if (!td_->chat_manager_->have_channel(channel_id)) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  auto new_status = get_dialog_participant_status(chat_member_status, td_->chat_manager_->get_channel_type(channel_id));
-
-  if (participant_dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    // fast path is needed, because get_channel_status may return Creator, while GetChannelParticipantQuery returning Left
-    return set_channel_participant_status_impl(channel_id, participant_dialog_id, std::move(new_status),
-                                               td_->chat_manager_->get_channel_status(channel_id), std::move(promise));
-  }
-  if (participant_dialog_id.get_type() != DialogType::User) {
-    if (new_status.is_administrator() || new_status.is_member() || new_status.is_restricted()) {
-      return promise.set_error(Status::Error(400, "Other chats can be only banned or unbanned"));
-    }
-    // always pretend that old_status is different
-    return restrict_channel_participant(
-        channel_id, participant_dialog_id, std::move(new_status),
-        new_status.is_banned() ? DialogParticipantStatus::Left() : DialogParticipantStatus::Banned(0),
-        std::move(promise));
-  }
-
-  auto on_result_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), channel_id, participant_dialog_id, new_status,
-                              promise = std::move(promise)](Result<DialogParticipant> r_dialog_participant) mutable {
-        if (r_dialog_participant.is_error()) {
-          return promise.set_error(r_dialog_participant.move_as_error());
-        }
-
-        send_closure(actor_id, &DialogParticipantManager::set_channel_participant_status_impl, channel_id,
-                     participant_dialog_id, std::move(new_status), r_dialog_participant.ok().status_,
-                     std::move(promise));
-      });
-
-  get_channel_participant(channel_id, participant_dialog_id, std::move(on_result_promise));
-}
-
-void DialogParticipantManager::set_channel_participant_status_impl(ChannelId channel_id, DialogId participant_dialog_id,
-                                                                   DialogParticipantStatus new_status,
-                                                                   DialogParticipantStatus old_status,
-                                                                   Promise<Unit> &&promise) {
-  if (old_status == new_status && !old_status.is_creator()) {
-    return promise.set_value(Unit());
-  }
-  CHECK(participant_dialog_id.get_type() == DialogType::User);
-
-  LOG(INFO) << "Change status of " << participant_dialog_id << " in " << channel_id << " from " << old_status << " to "
-            << new_status;
-  bool need_add = false;
-  bool need_promote = false;
-  bool need_restrict = false;
-  if (new_status.is_creator() || old_status.is_creator()) {
-    if (!old_status.is_creator()) {
-      return promise.set_error(Status::Error(400, "Can't add another owner to the chat"));
-    }
-    if (!new_status.is_creator()) {
-      return promise.set_error(Status::Error(400, "Can't remove chat owner"));
-    }
-    auto user_id = td_->user_manager_->get_my_id();
-    if (participant_dialog_id != DialogId(user_id)) {
-      return promise.set_error(Status::Error(400, "Not enough rights to edit chat owner rights"));
-    }
-    if (new_status.is_member() == old_status.is_member()) {
-      // change rank and is_anonymous
-      auto r_input_user = td_->user_manager_->get_input_user(user_id);
-      CHECK(r_input_user.is_ok());
-      td_->create_handler<EditChannelAdminQuery>(std::move(promise))
-          ->send(channel_id, user_id, r_input_user.move_as_ok(), new_status);
-      return;
-    }
-    if (new_status.is_member()) {
-      // creator not member -> creator member
-      need_add = true;
-    } else {
-      // creator member -> creator not member
-      need_restrict = true;
-    }
-  } else if (new_status.is_administrator()) {
-    need_promote = true;
-  } else if (!new_status.is_member() || new_status.is_restricted()) {
-    if (new_status.is_member() && !old_status.is_member()) {
-      // TODO there is no way in server API to invite someone and change restrictions
-      // we need to first add user and change restrictions again after that
-      // but if restrictions aren't changed, then adding is enough
-      auto copy_old_status = old_status;
-      copy_old_status.set_is_member(true);
-      if (copy_old_status == new_status) {
-        need_add = true;
-      } else {
-        need_restrict = true;
-      }
-    } else {
-      need_restrict = true;
-    }
-  } else {
-    // regular member
-    if (old_status.is_administrator()) {
-      need_promote = true;
-    } else if (old_status.is_restricted() || old_status.is_banned()) {
-      need_restrict = true;
-    } else {
-      CHECK(!old_status.is_member());
-      need_add = true;
-    }
-  }
-
-  if (need_promote) {
-    if (participant_dialog_id.get_type() != DialogType::User) {
-      return promise.set_error(Status::Error(400, "Can't promote chats to chat administrators"));
-    }
-    return promote_channel_participant(channel_id, participant_dialog_id.get_user_id(), new_status, old_status,
-                                       std::move(promise));
-  } else if (need_restrict) {
-    return restrict_channel_participant(channel_id, participant_dialog_id, std::move(new_status), std::move(old_status),
-                                        std::move(promise));
-  } else {
-    CHECK(need_add);
-    if (participant_dialog_id.get_type() != DialogType::User) {
-      return promise.set_error(Status::Error(400, "Can't add chats as chat members"));
-    }
-    return add_channel_participant(channel_id, participant_dialog_id.get_user_id(), old_status,
-                                   wrap_failed_to_add_members_promise(std::move(promise)));
-  }
-}
-
-void DialogParticipantManager::promote_channel_participant(ChannelId channel_id, UserId user_id,
-                                                           const DialogParticipantStatus &new_status,
-                                                           const DialogParticipantStatus &old_status,
-                                                           Promise<Unit> &&promise) {
-  LOG(INFO) << "Promote " << user_id << " in " << channel_id << " from " << old_status << " to " << new_status;
-  if (user_id == td_->user_manager_->get_my_id()) {
-    if (new_status.is_administrator()) {
-      return promise.set_error(Status::Error(400, "Can't promote self"));
-    }
-    CHECK(new_status.is_member());
-    // allow to demote self. TODO is it allowed server-side?
-  } else {
-    if (!td_->chat_manager_->get_channel_permissions(channel_id).can_promote_members()) {
-      return promise.set_error(Status::Error(400, "Not enough rights"));
-    }
-
-    CHECK(!old_status.is_creator());
-    CHECK(!new_status.is_creator());
-  }
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  speculative_add_channel_user(channel_id, user_id, new_status, old_status);
-  td_->create_handler<EditChannelAdminQuery>(std::move(promise))
-      ->send(channel_id, user_id, std::move(input_user), new_status);
-}
-
-void DialogParticipantManager::restrict_channel_participant(ChannelId channel_id, DialogId participant_dialog_id,
-                                                            DialogParticipantStatus &&new_status,
-                                                            DialogParticipantStatus &&old_status,
-                                                            Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Restrict " << participant_dialog_id << " in " << channel_id << " from " << old_status << " to "
-            << new_status;
-  if (!td_->chat_manager_->have_channel(channel_id)) {
-    return promise.set_error(Status::Error(400, "Chat info not found"));
-  }
-  auto my_status = td_->chat_manager_->get_channel_status(channel_id);
-  if (!my_status.is_member() && !my_status.is_creator()) {
-    if (participant_dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-      if (new_status.is_member()) {
-        return promise.set_error(Status::Error(400, "Can't unrestrict self"));
-      }
-      return promise.set_value(Unit());
-    } else {
-      return promise.set_error(Status::Error(400, "Not in the chat"));
-    }
-  }
-  auto input_peer = td_->dialog_manager_->get_input_peer(participant_dialog_id, AccessRights::Know);
-  if (input_peer == nullptr) {
-    return promise.set_error(Status::Error(400, "Member not found"));
-  }
-
-  if (participant_dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    if (new_status.is_restricted() || new_status.is_banned()) {
-      return promise.set_error(Status::Error(400, "Can't restrict self"));
-    }
-    if (new_status.is_member()) {
-      return promise.set_error(Status::Error(400, "Can't unrestrict self"));
-    }
-
-    // leave the channel
-    speculative_add_channel_user(channel_id, participant_dialog_id.get_user_id(), new_status, my_status);
-    td_->create_handler<LeaveChannelQuery>(std::move(promise))->send(channel_id);
-    return;
-  }
-
-  switch (participant_dialog_id.get_type()) {
-    case DialogType::User:
-      // ok;
-      break;
-    case DialogType::Channel:
-      if (new_status.is_administrator() || new_status.is_member() || new_status.is_restricted()) {
-        return promise.set_error(Status::Error(400, "Other chats can be only banned or unbanned"));
-      }
-      break;
-    default:
-      return promise.set_error(Status::Error(400, "Can't restrict the chat"));
-  }
-
-  CHECK(!old_status.is_creator());
-  CHECK(!new_status.is_creator());
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_restrict_members()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to restrict/unrestrict chat member"));
-  }
-
-  if (old_status.is_member() && !new_status.is_member() && !new_status.is_banned()) {
-    // we can't make participant Left without kicking it first
-    auto on_result_promise = PromiseCreator::lambda([actor_id = actor_id(this), channel_id, participant_dialog_id,
-                                                     new_status = std::move(new_status),
-                                                     promise = std::move(promise)](Result<> result) mutable {
-      if (result.is_error()) {
-        return promise.set_error(result.move_as_error());
-      }
-
-      create_actor<SleepActor>(
-          "RestrictChannelParticipantSleepActor", 1.0,
-          PromiseCreator::lambda([actor_id, channel_id, participant_dialog_id, new_status = std::move(new_status),
-                                  promise = std::move(promise)](Unit) mutable {
-            send_closure(actor_id, &DialogParticipantManager::restrict_channel_participant, channel_id,
-                         participant_dialog_id, std::move(new_status), DialogParticipantStatus::Banned(0),
-                         std::move(promise));
-          }))
-          .release();
-    });
-
-    promise = std::move(on_result_promise);
-    new_status = DialogParticipantStatus::Banned(G()->unix_time() + 60);
-  }
-
-  if (new_status.is_member() && !old_status.is_member()) {
-    // there is no way in server API to invite someone and change restrictions
-    // we need to first change restrictions and then try to add the user
-    CHECK(participant_dialog_id.get_type() == DialogType::User);
-    new_status.set_is_member(false);
-    auto on_result_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), channel_id, participant_dialog_id, old_status = new_status,
-                                promise = std::move(promise)](Result<> result) mutable {
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-
-          create_actor<SleepActor>(
-              "AddChannelParticipantSleepActor", 1.0,
-              PromiseCreator::lambda([actor_id, channel_id, participant_dialog_id, old_status = std::move(old_status),
-                                      promise = std::move(promise)](Unit) mutable {
-                send_closure(actor_id, &DialogParticipantManager::add_channel_participant, channel_id,
-                             participant_dialog_id.get_user_id(), old_status,
-                             wrap_failed_to_add_members_promise(std::move(promise)));
-              }))
-              .release();
-        });
-
-    promise = std::move(on_result_promise);
-  }
-
-  if (participant_dialog_id.get_type() == DialogType::User) {
-    speculative_add_channel_user(channel_id, participant_dialog_id.get_user_id(), new_status, old_status);
-  }
-  td_->create_handler<EditChannelBannedQuery>(std::move(promise))
-      ->send(channel_id, participant_dialog_id, std::move(input_peer), new_status);
-}
-
-void DialogParticipantManager::on_set_channel_participant_status(ChannelId channel_id, DialogId participant_dialog_id,
-                                                                 DialogParticipantStatus status) {
-  if (G()->close_flag() || participant_dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    return;
-  }
-
-  status.update_restrictions();
-  if (have_channel_participant_cache(channel_id)) {
-    update_channel_participant_status_cache(channel_id, participant_dialog_id, std::move(status));
-  }
-}
-
-void DialogParticipantManager::speculative_add_channel_user(ChannelId channel_id, UserId user_id,
-                                                            const DialogParticipantStatus &new_status,
-                                                            const DialogParticipantStatus &old_status) {
-  speculative_update_dialog_administrators(DialogId(channel_id), user_id, new_status, old_status);
-
-  td_->chat_manager_->speculative_add_channel_user(channel_id, user_id, new_status, old_status);
-}
-
-void DialogParticipantManager::on_channel_participant_cache_timeout_callback(void *dialog_participant_manager_ptr,
-                                                                             int64 channel_id_long) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto dialog_participant_manager = static_cast<DialogParticipantManager *>(dialog_participant_manager_ptr);
-  send_closure_later(dialog_participant_manager->actor_id(dialog_participant_manager),
-                     &DialogParticipantManager::on_channel_participant_cache_timeout, ChannelId(channel_id_long));
-}
-
-void DialogParticipantManager::on_channel_participant_cache_timeout(ChannelId channel_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto channel_participants_it = channel_participants_.find(channel_id);
-  if (channel_participants_it == channel_participants_.end()) {
-    return;
-  }
-
-  auto &participants = channel_participants_it->second.participants_;
-  auto min_access_date = G()->unix_time() - CHANNEL_PARTICIPANT_CACHE_TIME;
-  table_remove_if(participants,
-                  [min_access_date](const auto &it) { return it.second.last_access_date_ < min_access_date; });
-
-  if (participants.empty()) {
-    channel_participants_.erase(channel_participants_it);
-  } else {
-    channel_participant_cache_timeout_.set_timeout_in(channel_id.get(), CHANNEL_PARTICIPANT_CACHE_TIME);
-  }
-}
-
-bool DialogParticipantManager::have_channel_participant_cache(ChannelId channel_id) const {
-  if (!td_->auth_manager_->is_bot()) {
-    return false;
-  }
-  return td_->chat_manager_->get_channel_status(channel_id).is_administrator();
-}
-
-void DialogParticipantManager::add_channel_participant_to_cache(ChannelId channel_id,
-                                                                const DialogParticipant &dialog_participant,
-                                                                bool allow_replace) {
-  CHECK(channel_id.is_valid());
-  CHECK(dialog_participant.is_valid());
-  auto &participants = channel_participants_[channel_id];
-  if (participants.participants_.empty()) {
-    channel_participant_cache_timeout_.set_timeout_in(channel_id.get(), CHANNEL_PARTICIPANT_CACHE_TIME);
-  }
-  auto &participant_info = participants.participants_[dialog_participant.dialog_id_];
-  if (participant_info.last_access_date_ > 0 && !allow_replace) {
-    return;
-  }
-  participant_info.participant_ = dialog_participant;
-  participant_info.last_access_date_ = G()->unix_time();
-}
-
-void DialogParticipantManager::update_channel_participant_status_cache(
-    ChannelId channel_id, DialogId participant_dialog_id, DialogParticipantStatus &&dialog_participant_status) {
-  CHECK(channel_id.is_valid());
-  CHECK(participant_dialog_id.is_valid());
-  auto channel_participants_it = channel_participants_.find(channel_id);
-  if (channel_participants_it == channel_participants_.end()) {
-    return;
-  }
-  auto &participants = channel_participants_it->second;
-  auto it = participants.participants_.find(participant_dialog_id);
-  if (it == participants.participants_.end()) {
-    return;
-  }
-  auto &participant_info = it->second;
-  LOG(INFO) << "Update cached status of " << participant_dialog_id << " in " << channel_id << " from "
-            << participant_info.participant_.status_ << " to " << dialog_participant_status;
-  participant_info.participant_.status_ = std::move(dialog_participant_status);
-  participant_info.last_access_date_ = G()->unix_time();
-}
-
-void DialogParticipantManager::drop_channel_participant_cache(ChannelId channel_id) {
-  channel_participants_.erase(channel_id);
-}
-
-const DialogParticipant *DialogParticipantManager::get_channel_participant_from_cache(ChannelId channel_id,
-                                                                                      DialogId participant_dialog_id) {
-  auto channel_participants_it = channel_participants_.find(channel_id);
-  if (channel_participants_it == channel_participants_.end()) {
-    return nullptr;
-  }
-
-  auto &participants = channel_participants_it->second.participants_;
-  CHECK(!participants.empty());
-  auto it = participants.find(participant_dialog_id);
-  if (it != participants.end()) {
-    it->second.participant_.status_.update_restrictions();
-    it->second.last_access_date_ = G()->unix_time();
-    return &it->second.participant_;
-  }
-  return nullptr;
-}
-
-void DialogParticipantManager::set_cached_channel_participants(ChannelId channel_id,
-                                                               vector<DialogParticipant> participants) {
-  cached_channel_participants_[channel_id] = std::move(participants);
-}
-
-void DialogParticipantManager::drop_cached_channel_participants(ChannelId channel_id) {
-  cached_channel_participants_.erase(channel_id);
-}
-
-void DialogParticipantManager::add_cached_channel_participants(ChannelId channel_id,
-                                                               const vector<UserId> &added_user_ids,
-                                                               UserId inviter_user_id, int32 date) {
-  auto it = cached_channel_participants_.find(channel_id);
-  if (it == cached_channel_participants_.end()) {
-    return;
-  }
-  auto &participants = it->second;
-  bool is_participants_cache_changed = false;
-  for (auto user_id : added_user_ids) {
-    if (!user_id.is_valid()) {
-      continue;
-    }
-
-    bool is_found = false;
-    for (const auto &participant : participants) {
-      if (participant.dialog_id_ == DialogId(user_id)) {
-        is_found = true;
-        break;
-      }
-    }
-    if (!is_found) {
-      is_participants_cache_changed = true;
-      participants.emplace_back(DialogId(user_id), inviter_user_id, date, DialogParticipantStatus::Member(0));
-    }
-  }
-  if (is_participants_cache_changed) {
-    update_channel_online_member_count(channel_id, false);
-  }
-}
-
-void DialogParticipantManager::delete_cached_channel_participant(ChannelId channel_id, UserId deleted_user_id) {
-  if (!deleted_user_id.is_valid()) {
-    return;
-  }
-
-  auto it = cached_channel_participants_.find(channel_id);
-  if (it == cached_channel_participants_.end()) {
-    return;
-  }
-  auto &participants = it->second;
-  for (size_t i = 0; i < participants.size(); i++) {
-    if (participants[i].dialog_id_ == DialogId(deleted_user_id)) {
-      participants.erase(participants.begin() + i);
-      update_channel_online_member_count(channel_id, false);
-      break;
-    }
-  }
-}
-
-void DialogParticipantManager::update_cached_channel_participant_status(ChannelId channel_id, UserId user_id,
-                                                                        const DialogParticipantStatus &status) {
-  auto it = cached_channel_participants_.find(channel_id);
-  if (it == cached_channel_participants_.end()) {
-    return;
-  }
-  auto &participants = it->second;
-  bool is_found = false;
-  for (size_t i = 0; i < participants.size(); i++) {
-    if (participants[i].dialog_id_ == DialogId(user_id)) {
-      if (!status.is_member()) {
-        participants.erase(participants.begin() + i);
-        update_channel_online_member_count(channel_id, false);
-      } else {
-        participants[i].status_ = status;
-      }
-      is_found = true;
-      break;
-    }
-  }
-  if (!is_found && status.is_member()) {
-    participants.emplace_back(DialogId(user_id), td_->user_manager_->get_my_id(), G()->unix_time(), status);
-    update_channel_online_member_count(channel_id, false);
-  }
-}
-
-void DialogParticipantManager::can_transfer_ownership(Promise<CanTransferOwnershipResult> &&promise) {
-  auto request_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<Unit> r_result) mutable {
-    CHECK(r_result.is_error());
-
-    auto error = r_result.move_as_error();
-    CanTransferOwnershipResult result;
-    if (error.message() == "PASSWORD_HASH_INVALID") {
-      return promise.set_value(std::move(result));
-    }
-    if (error.message() == "PASSWORD_MISSING") {
-      result.type = CanTransferOwnershipResult::Type::PasswordNeeded;
-      return promise.set_value(std::move(result));
-    }
-    if (begins_with(error.message(), "PASSWORD_TOO_FRESH_")) {
-      result.type = CanTransferOwnershipResult::Type::PasswordTooFresh;
-      result.retry_after = to_integer<int32>(error.message().substr(Slice("PASSWORD_TOO_FRESH_").size()));
-      if (result.retry_after < 0) {
-        result.retry_after = 0;
-      }
-      return promise.set_value(std::move(result));
-    }
-    if (begins_with(error.message(), "SESSION_TOO_FRESH_")) {
-      result.type = CanTransferOwnershipResult::Type::SessionTooFresh;
-      result.retry_after = to_integer<int32>(error.message().substr(Slice("SESSION_TOO_FRESH_").size()));
-      if (result.retry_after < 0) {
-        result.retry_after = 0;
-      }
-      return promise.set_value(std::move(result));
-    }
-    promise.set_error(std::move(error));
-  });
-
-  td_->create_handler<CanEditChannelCreatorQuery>(std::move(request_promise))->send();
-}
-
-td_api::object_ptr<td_api::CanTransferOwnershipResult>
-DialogParticipantManager::get_can_transfer_ownership_result_object(CanTransferOwnershipResult result) {
-  switch (result.type) {
-    case CanTransferOwnershipResult::Type::Ok:
-      return td_api::make_object<td_api::canTransferOwnershipResultOk>();
-    case CanTransferOwnershipResult::Type::PasswordNeeded:
-      return td_api::make_object<td_api::canTransferOwnershipResultPasswordNeeded>();
-    case CanTransferOwnershipResult::Type::PasswordTooFresh:
-      return td_api::make_object<td_api::canTransferOwnershipResultPasswordTooFresh>(result.retry_after);
-    case CanTransferOwnershipResult::Type::SessionTooFresh:
-      return td_api::make_object<td_api::canTransferOwnershipResultSessionTooFresh>(result.retry_after);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-void DialogParticipantManager::transfer_dialog_ownership(DialogId dialog_id, UserId user_id, const string &password,
-                                                         Promise<Unit> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "transfer_dialog_ownership")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (!td_->user_manager_->have_user_force(user_id, "transfer_dialog_ownership")) {
-    return promise.set_error(Status::Error(400, "User not found"));
-  }
-  if (td_->user_manager_->is_user_bot(user_id)) {
-    return promise.set_error(Status::Error(400, "User is a bot"));
-  }
-  if (td_->user_manager_->is_user_deleted(user_id)) {
-    return promise.set_error(Status::Error(400, "User is deleted"));
-  }
-  if (password.empty()) {
-    return promise.set_error(Status::Error(400, "PASSWORD_HASH_INVALID"));
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't transfer chat ownership"));
-    case DialogType::Channel:
-      send_closure(
-          td_->password_manager_, &PasswordManager::get_input_check_password_srp, password,
-          PromiseCreator::lambda([actor_id = actor_id(this), channel_id = dialog_id.get_channel_id(), user_id,
-                                  promise = std::move(promise)](
-                                     Result<tl_object_ptr<telegram_api::InputCheckPasswordSRP>> result) mutable {
-            if (result.is_error()) {
-              return promise.set_error(result.move_as_error());
-            }
-            send_closure(actor_id, &DialogParticipantManager::transfer_channel_ownership, channel_id, user_id,
-                         result.move_as_ok(), std::move(promise));
-          }));
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void DialogParticipantManager::transfer_channel_ownership(
-    ChannelId channel_id, UserId user_id,
-    telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  td_->create_handler<EditChannelCreatorQuery>(std::move(promise))
-      ->send(channel_id, user_id, std::move(input_check_password));
-}
-
-void DialogParticipantManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  for (const auto &it : dialog_online_member_counts_) {
-    auto dialog_id = it.first;
-    if (it.second.is_update_sent && td_->messages_manager_->is_dialog_opened(dialog_id)) {
-      updates.push_back(td_api::make_object<td_api::updateChatOnlineMemberCount>(
-          td_->dialog_manager_->get_chat_id_object(dialog_id, "updateChatOnlineMemberCount"),
-          it.second.online_member_count));
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogParticipantManager.h b/third-party/td/td/td/telegram/DialogParticipantManager.h
deleted file mode 100644
index ad8bc77c10..0000000000
--- a/third-party/td/td/td/telegram/DialogParticipantManager.h
+++ /dev/null
@@ -1,322 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/DialogAdministrator.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogInviteLink.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/DialogParticipantFilter.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class ChannelParticipantFilter;
-
-class Td;
-
-class DialogParticipantManager final : public Actor {
- public:
-  DialogParticipantManager(Td *td, ActorShared<> parent);
-  DialogParticipantManager(const DialogParticipantManager &) = delete;
-  DialogParticipantManager &operator=(const DialogParticipantManager &) = delete;
-  DialogParticipantManager(DialogParticipantManager &&) = delete;
-  DialogParticipantManager &operator=(DialogParticipantManager &&) = delete;
-  ~DialogParticipantManager() final;
-
-  void update_user_online_member_count(UserId user_id);
-
-  void update_dialog_online_member_count(const vector<DialogParticipant> &participants, DialogId dialog_id,
-                                         bool is_from_server);
-
-  void on_update_dialog_online_member_count(DialogId dialog_id, int32 online_member_count, bool is_from_server);
-
-  void add_cached_channel_participants(ChannelId channel_id, const vector<UserId> &added_user_ids,
-                                       UserId inviter_user_id, int32 date);
-
-  void delete_cached_channel_participant(ChannelId channel_id, UserId deleted_user_id);
-
-  void update_cached_channel_participant_status(ChannelId channel_id, UserId user_id,
-                                                const DialogParticipantStatus &status);
-
-  void on_dialog_opened(DialogId dialog_id);
-
-  void on_dialog_closed(DialogId dialog_id);
-
-  void fix_pending_join_requests(DialogId dialog_id, int32 &pending_join_request_count,
-                                 vector<UserId> &pending_join_request_user_ids) const;
-
-  void get_dialog_join_requests(DialogId dialog_id, const string &invite_link, const string &query,
-                                td_api::object_ptr<td_api::chatJoinRequest> offset_request, int32 limit,
-                                Promise<td_api::object_ptr<td_api::chatJoinRequests>> &&promise);
-
-  void process_dialog_join_request(DialogId dialog_id, UserId user_id, bool approve, Promise<Unit> &&promise);
-
-  void process_dialog_join_requests(DialogId dialog_id, const string &invite_link, bool approve,
-                                    Promise<Unit> &&promise);
-
-  void speculative_update_dialog_administrators(DialogId dialog_id, UserId user_id,
-                                                const DialogParticipantStatus &new_status,
-                                                const DialogParticipantStatus &old_status);
-
-  void on_update_dialog_administrators(DialogId dialog_id, vector<DialogAdministrator> &&administrators,
-                                       bool have_access, bool from_database);
-
-  void get_dialog_administrators(DialogId dialog_id, Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise);
-
-  void reload_dialog_administrators(DialogId dialog_id, const vector<DialogAdministrator> &dialog_administrators,
-                                    Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise);
-
-  void on_update_bot_stopped(UserId user_id, int32 date, bool is_stopped, bool force = false);
-
-  void on_update_chat_participant(ChatId chat_id, UserId user_id, int32 date, DialogInviteLink invite_link,
-                                  bool via_join_request,
-                                  telegram_api::object_ptr<telegram_api::ChatParticipant> old_participant,
-                                  telegram_api::object_ptr<telegram_api::ChatParticipant> new_participant);
-
-  void on_update_channel_participant(ChannelId channel_id, UserId user_id, int32 date, DialogInviteLink invite_link,
-                                     bool via_join_request, bool via_dialog_filter_invite_link,
-                                     telegram_api::object_ptr<telegram_api::ChannelParticipant> old_participant,
-                                     telegram_api::object_ptr<telegram_api::ChannelParticipant> new_participant);
-
-  void on_update_chat_invite_requester(DialogId dialog_id, UserId user_id, string about, int32 date,
-                                       DialogInviteLink invite_link);
-
-  void get_dialog_participant(DialogId dialog_id, DialogId participant_dialog_id,
-                              Promise<td_api::object_ptr<td_api::chatMember>> &&promise);
-
-  void get_channel_participant(ChannelId channel_id, DialogId participant_dialog_id,
-                               Promise<DialogParticipant> &&promise);
-
-  void get_channel_participants(ChannelId channel_id, td_api::object_ptr<td_api::SupergroupMembersFilter> &&filter,
-                                string additional_query, int32 offset, int32 limit, int32 additional_limit,
-                                Promise<DialogParticipants> &&promise);
-
-  void search_dialog_participants(DialogId dialog_id, const string &query, int32 limit, DialogParticipantFilter filter,
-                                  Promise<DialogParticipants> &&promise);
-
-  static Promise<td_api::object_ptr<td_api::failedToAddMembers>> wrap_failed_to_add_members_promise(
-      Promise<Unit> &&promise);
-
-  void add_dialog_participant(DialogId dialog_id, UserId user_id, int32 forward_limit,
-                              Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise);
-
-  void add_dialog_participants(DialogId dialog_id, const vector<UserId> &user_ids,
-                               Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise);
-
-  void set_dialog_participant_status(DialogId dialog_id, DialogId participant_dialog_id,
-                                     td_api::object_ptr<td_api::ChatMemberStatus> &&chat_member_status,
-                                     Promise<Unit> &&promise);
-
-  void ban_dialog_participant(DialogId dialog_id, DialogId participant_dialog_id, int32 banned_until_date,
-                              bool revoke_messages, Promise<Unit> &&promise);
-
-  void leave_dialog(DialogId dialog_id, Promise<Unit> &&promise);
-
-  void on_set_channel_participant_status(ChannelId channel_id, DialogId participant_dialog_id,
-                                         DialogParticipantStatus status);
-
-  bool have_channel_participant_cache(ChannelId channel_id) const;
-
-  void add_channel_participant_to_cache(ChannelId channel_id, const DialogParticipant &dialog_participant,
-                                        bool allow_replace);
-
-  void drop_channel_participant_cache(ChannelId channel_id);
-
-  struct CanTransferOwnershipResult {
-    enum class Type : uint8 { Ok, PasswordNeeded, PasswordTooFresh, SessionTooFresh };
-    Type type = Type::Ok;
-    int32 retry_after = 0;
-  };
-  void can_transfer_ownership(Promise<CanTransferOwnershipResult> &&promise);
-
-  static td_api::object_ptr<td_api::CanTransferOwnershipResult> get_can_transfer_ownership_result_object(
-      CanTransferOwnershipResult result);
-
-  void transfer_dialog_ownership(DialogId dialog_id, UserId user_id, const string &password, Promise<Unit> &&promise);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  static constexpr int32 ONLINE_MEMBER_COUNT_CACHE_EXPIRE_TIME = 30 * 60;
-
-  static constexpr int32 ONLINE_MEMBER_COUNT_UPDATE_TIME = 5 * 60;
-
-  static constexpr int32 CHANNEL_PARTICIPANT_CACHE_TIME = 1800;  // some reasonable limit
-
-  static constexpr int32 MAX_GET_CHANNEL_PARTICIPANTS = 200;  // server side limit
-
-  void tear_down() final;
-
-  static void on_update_dialog_online_member_count_timeout_callback(void *dialog_participant_manager_ptr,
-                                                                    int64 dialog_id_int);
-
-  void set_dialog_online_member_count(DialogId dialog_id, int32 online_member_count, bool is_from_server,
-                                      const char *source);
-
-  void on_update_dialog_online_member_count_timeout(DialogId dialog_id);
-
-  void send_update_chat_online_member_count(DialogId dialog_id, int32 online_member_count) const;
-
-  Status can_manage_dialog_join_requests(DialogId dialog_id);
-
-  td_api::object_ptr<td_api::chatAdministrators> get_chat_administrators_object(
-      const vector<DialogAdministrator> &dialog_administrators);
-
-  static string get_dialog_administrators_database_key(DialogId dialog_id);
-
-  void on_load_dialog_administrators_from_database(DialogId dialog_id, string value,
-                                                   Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise);
-
-  void on_load_administrator_users_finished(DialogId dialog_id, vector<DialogAdministrator> administrators,
-                                            Result<Unit> result,
-                                            Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise);
-
-  void on_reload_dialog_administrators(DialogId dialog_id,
-                                       Promise<td_api::object_ptr<td_api::chatAdministrators>> &&promise);
-
-  void send_update_chat_member(DialogId dialog_id, UserId agent_user_id, int32 date,
-                               const DialogInviteLink &invite_link, bool via_join_request,
-                               bool via_dialog_filter_invite_link, const DialogParticipant &old_dialog_participant,
-                               const DialogParticipant &new_dialog_participant);
-
-  void do_get_dialog_participant(DialogId dialog_id, DialogId participant_dialog_id,
-                                 Promise<DialogParticipant> &&promise);
-
-  void finish_get_dialog_participant(DialogParticipant &&dialog_participant,
-                                     Promise<td_api::object_ptr<td_api::chatMember>> &&promise);
-
-  void finish_get_channel_participant(ChannelId channel_id, DialogId participant_dialog_id,
-                                      DialogParticipant &&dialog_participant, Promise<DialogParticipant> &&promise);
-
-  std::pair<int32, vector<DialogId>> search_among_dialogs(const vector<DialogId> &dialog_ids, const string &query,
-                                                          int32 limit) const;
-
-  DialogParticipants search_private_chat_participants(UserId peer_user_id, const string &query, int32 limit,
-                                                      DialogParticipantFilter filter) const;
-
-  void search_chat_participants(ChatId chat_id, const string &query, int32 limit, DialogParticipantFilter filter,
-                                Promise<DialogParticipants> &&promise);
-
-  void do_search_chat_participants(ChatId chat_id, const string &query, int32 limit, DialogParticipantFilter filter,
-                                   Promise<DialogParticipants> &&promise);
-
-  void on_get_channel_participants(
-      ChannelId channel_id, ChannelParticipantFilter &&filter, int32 offset, int32 limit, string additional_query,
-      int32 additional_limit,
-      telegram_api::object_ptr<telegram_api::channels_channelParticipants> &&channel_participants,
-      Promise<DialogParticipants> &&promise);
-
-  void set_chat_participant_status(ChatId chat_id, UserId user_id, DialogParticipantStatus status, bool is_recursive,
-                                   Promise<Unit> &&promise);
-
-  void add_chat_participant(ChatId chat_id, UserId user_id, int32 forward_limit,
-                            Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise);
-
-  void send_edit_chat_admin_query(ChatId chat_id, UserId user_id, bool is_administrator, Promise<Unit> &&promise);
-
-  void delete_chat_participant(ChatId chat_id, UserId user_id, bool revoke_messages, Promise<Unit> &&promise);
-
-  void add_channel_participant(ChannelId channel_id, UserId user_id, const DialogParticipantStatus &old_status,
-                               Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise);
-
-  void on_join_channel(ChannelId channel_id, bool was_speculatively_updated, DialogParticipantStatus &&old_status,
-                       DialogParticipantStatus &&new_status, Result<Unit> &&result);
-
-  void add_channel_participants(ChannelId channel_id, const vector<UserId> &user_ids,
-                                Promise<td_api::object_ptr<td_api::failedToAddMembers>> &&promise);
-
-  void set_channel_participant_status(ChannelId channel_id, DialogId participant_dialog_id,
-                                      td_api::object_ptr<td_api::ChatMemberStatus> &&chat_member_status,
-                                      Promise<Unit> &&promise);
-
-  void set_channel_participant_status_impl(ChannelId channel_id, DialogId participant_dialog_id,
-                                           DialogParticipantStatus new_status, DialogParticipantStatus old_status,
-                                           Promise<Unit> &&promise);
-
-  void promote_channel_participant(ChannelId channel_id, UserId user_id, const DialogParticipantStatus &new_status,
-                                   const DialogParticipantStatus &old_status, Promise<Unit> &&promise);
-
-  void restrict_channel_participant(ChannelId channel_id, DialogId participant_dialog_id,
-                                    DialogParticipantStatus &&new_status, DialogParticipantStatus &&old_status,
-                                    Promise<Unit> &&promise);
-
-  void speculative_add_channel_user(ChannelId channel_id, UserId user_id, const DialogParticipantStatus &new_status,
-                                    const DialogParticipantStatus &old_status);
-
-  void update_channel_participant_status_cache(ChannelId channel_id, DialogId participant_dialog_id,
-                                               DialogParticipantStatus &&dialog_participant_status);
-
-  const DialogParticipant *get_channel_participant_from_cache(ChannelId channel_id, DialogId participant_dialog_id);
-
-  static void on_channel_participant_cache_timeout_callback(void *dialog_participant_manager_ptr,
-                                                            int64 channel_id_long);
-
-  void on_channel_participant_cache_timeout(ChannelId channel_id);
-
-  void set_cached_channel_participants(ChannelId channel_id, vector<DialogParticipant> participants);
-
-  void drop_cached_channel_participants(ChannelId channel_id);
-
-  void update_channel_online_member_count(ChannelId channel_id, bool is_from_server);
-
-  void transfer_channel_ownership(ChannelId channel_id, UserId user_id,
-                                  tl_object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password,
-                                  Promise<Unit> &&promise);
-
-  struct OnlineMemberCountInfo {
-    int32 online_member_count = 0;
-    double update_time = 0;
-    bool is_update_sent = false;
-  };
-  FlatHashMap<DialogId, OnlineMemberCountInfo, DialogIdHash> dialog_online_member_counts_;
-
-  struct UserOnlineMemberDialogs {
-    FlatHashMap<DialogId, int32, DialogIdHash> online_member_dialogs_;  // dialog_id -> time
-  };
-  FlatHashMap<UserId, unique_ptr<UserOnlineMemberDialogs>, UserIdHash> user_online_member_dialogs_;
-
-  FlatHashMap<DialogId, vector<DialogAdministrator>, DialogIdHash> dialog_administrators_;
-
-  // bot-administrators only
-  struct ChannelParticipantInfo {
-    DialogParticipant participant_;
-
-    int32 last_access_date_ = 0;
-  };
-  struct ChannelParticipants {
-    FlatHashMap<DialogId, ChannelParticipantInfo, DialogIdHash> participants_;
-  };
-  FlatHashMap<ChannelId, ChannelParticipants, ChannelIdHash> channel_participants_;
-
-  FlatHashMap<ChannelId, vector<DialogParticipant>, ChannelIdHash> cached_channel_participants_;
-
-  FlatHashMap<ChannelId, vector<Promise<td_api::object_ptr<td_api::failedToAddMembers>>>, ChannelIdHash>
-      join_channel_queries_;
-
-  MultiTimeout update_dialog_online_member_count_timeout_{"UpdateDialogOnlineMemberCountTimeout"};
-  MultiTimeout channel_participant_cache_timeout_{"ChannelParticipantCacheTimeout"};
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogSource.cpp b/third-party/td/td/td/telegram/DialogSource.cpp
deleted file mode 100644
index 8977bb0250..0000000000
--- a/third-party/td/td/td/telegram/DialogSource.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DialogSource.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-DialogSource DialogSource::mtproto_proxy() {
-  DialogSource result;
-  result.type_ = Type::MtprotoProxy;
-  return result;
-}
-
-DialogSource DialogSource::public_service_announcement(string psa_type, string psa_text) {
-  DialogSource result;
-  result.type_ = Type::PublicServiceAnnouncement;
-  result.psa_type_ = std::move(psa_type);
-  result.psa_text_ = std::move(psa_text);
-  return result;
-}
-
-Result<DialogSource> DialogSource::unserialize(Slice str) {
-  if (str.empty()) {
-    // legacy
-    return mtproto_proxy();
-  }
-  auto type_data = split(str);
-  TRY_RESULT(type, to_integer_safe<int32>(type_data.first));
-  switch (type) {
-    case static_cast<int32>(Type::MtprotoProxy):
-      return mtproto_proxy();
-    case static_cast<int32>(Type::PublicServiceAnnouncement): {
-      auto data = split(type_data.second, '\x01');
-      return public_service_announcement(data.first.str(), data.second.str());
-    }
-    default:
-      return Status::Error("Unexpected chat source type");
-  }
-}
-
-string DialogSource::serialize() const {
-  switch (type_) {
-    case DialogSource::Type::Membership:
-      UNREACHABLE();
-      return "";
-    case DialogSource::Type::MtprotoProxy:
-      return "1";
-    case DialogSource::Type::PublicServiceAnnouncement:
-      return PSTRING() << "2 " << psa_type_ << '\x01' << psa_text_;
-    default:
-      UNREACHABLE();
-      return "";
-  }
-}
-
-td_api::object_ptr<td_api::ChatSource> DialogSource::get_chat_source_object() const {
-  switch (type_) {
-    case DialogSource::Type::Membership:
-      return nullptr;
-    case DialogSource::Type::MtprotoProxy:
-      return td_api::make_object<td_api::chatSourceMtprotoProxy>();
-    case DialogSource::Type::PublicServiceAnnouncement:
-      return td_api::make_object<td_api::chatSourcePublicServiceAnnouncement>(psa_type_, psa_text_);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-bool operator==(const DialogSource &lhs, const DialogSource &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.psa_type_ == rhs.psa_type_ && lhs.psa_text_ == rhs.psa_text_;
-}
-
-bool operator!=(const DialogSource &lhs, const DialogSource &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogSource &source) {
-  switch (source.type_) {
-    case DialogSource::Type::Membership:
-      return string_builder << "chat list";
-    case DialogSource::Type::MtprotoProxy:
-      return string_builder << "MTProto proxy sponsor";
-    case DialogSource::Type::PublicServiceAnnouncement:
-      return string_builder << "public service announcement of type " << source.psa_type_;
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DialogSource.h b/third-party/td/td/td/telegram/DialogSource.h
deleted file mode 100644
index 732585a124..0000000000
--- a/third-party/td/td/td/telegram/DialogSource.h
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class DialogSource {
-  enum class Type : int32 { Membership, MtprotoProxy, PublicServiceAnnouncement };
-  Type type_ = Type::Membership;
-  string psa_type_;
-  string psa_text_;
-
-  friend bool operator==(const DialogSource &lhs, const DialogSource &rhs);
-
-  friend bool operator!=(const DialogSource &lhs, const DialogSource &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogSource &source);
-
- public:
-  static DialogSource mtproto_proxy();
-
-  static DialogSource public_service_announcement(string psa_type, string psa_text);
-
-  static Result<DialogSource> unserialize(Slice str);
-
-  string serialize() const;
-
-  td_api::object_ptr<td_api::ChatSource> get_chat_source_object() const;
-};
-
-bool operator==(const DialogSource &lhs, const DialogSource &rhs);
-
-bool operator!=(const DialogSource &lhs, const DialogSource &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogSource &source);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Dimensions.cpp b/third-party/td/td/td/telegram/Dimensions.cpp
deleted file mode 100644
index 512fe3c667..0000000000
--- a/third-party/td/td/td/telegram/Dimensions.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Dimensions.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-static uint16 get_dimension(int32 size, const char *source) {
-  if (size < 0 || size > 65535) {
-    if (source != nullptr) {
-      LOG(ERROR) << "Wrong image dimension = " << size << " from " << source;
-    }
-    return 0;
-  }
-  return narrow_cast<uint16>(size);
-}
-
-Dimensions get_dimensions(int32 width, int32 height, const char *source) {
-  Dimensions result;
-  result.width = get_dimension(width, source);
-  result.height = get_dimension(height, source);
-  if (result.width == 0 || result.height == 0) {
-    result.width = 0;
-    result.height = 0;
-  }
-  return result;
-}
-
-uint32 get_dimensions_pixel_count(const Dimensions &dimensions) {
-  return static_cast<uint32>(dimensions.width) * static_cast<uint32>(dimensions.height);
-}
-
-bool operator==(const Dimensions &lhs, const Dimensions &rhs) {
-  return lhs.width == rhs.width && lhs.height == rhs.height;
-}
-
-bool operator!=(const Dimensions &lhs, const Dimensions &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Dimensions &dimensions) {
-  return string_builder << "(" << dimensions.width << ", " << dimensions.height << ")";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Dimensions.h b/third-party/td/td/td/telegram/Dimensions.h
deleted file mode 100644
index ee90bfa428..0000000000
--- a/third-party/td/td/td/telegram/Dimensions.h
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct Dimensions {
-  uint16 width = 0;
-  uint16 height = 0;
-};
-
-Dimensions get_dimensions(int32 width, int32 height, const char *source);
-
-uint32 get_dimensions_pixel_count(const Dimensions &dimensions);
-
-bool operator==(const Dimensions &lhs, const Dimensions &rhs);
-bool operator!=(const Dimensions &lhs, const Dimensions &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Dimensions &dimensions);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Dimensions.hpp b/third-party/td/td/td/telegram/Dimensions.hpp
deleted file mode 100644
index 6edb53f744..0000000000
--- a/third-party/td/td/td/telegram/Dimensions.hpp
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Dimensions.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(Dimensions dimensions, StorerT &storer) {
-  store(static_cast<uint32>((static_cast<uint32>(dimensions.width) << 16) | dimensions.height), storer);
-}
-
-template <class ParserT>
-void parse(Dimensions &dimensions, ParserT &parser) {
-  uint32 width_height;
-  parse(width_height, parser);
-  dimensions.width = static_cast<uint16>(width_height >> 16);
-  dimensions.height = static_cast<uint16>(width_height & 0xFFFF);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DisallowedGiftsSettings.cpp b/third-party/td/td/td/telegram/DisallowedGiftsSettings.cpp
deleted file mode 100644
index c9781dab4b..0000000000
--- a/third-party/td/td/td/telegram/DisallowedGiftsSettings.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DisallowedGiftsSettings.h"
-
-namespace td {
-
-DisallowedGiftsSettings::DisallowedGiftsSettings(
-    telegram_api::object_ptr<telegram_api::disallowedGiftsSettings> &&settings) {
-  if (settings != nullptr) {
-    disallow_unlimited_stargifts_ = settings->disallow_unlimited_stargifts_;
-    disallow_limited_stargifts_ = settings->disallow_limited_stargifts_;
-    disallow_unique_stargifts_ = settings->disallow_unique_stargifts_;
-    disallow_premium_gifts_ = settings->disallow_premium_gifts_;
-  }
-}
-
-DisallowedGiftsSettings::DisallowedGiftsSettings(const td_api::object_ptr<td_api::acceptedGiftTypes> &types) {
-  if (types != nullptr) {
-    disallow_unlimited_stargifts_ = !types->unlimited_gifts_;
-    disallow_limited_stargifts_ = !types->limited_gifts_;
-    disallow_unique_stargifts_ = !types->upgraded_gifts_;
-    disallow_premium_gifts_ = !types->premium_subscription_;
-  }
-}
-
-td_api::object_ptr<td_api::acceptedGiftTypes> DisallowedGiftsSettings::get_accepted_gift_types_object() const {
-  return td_api::make_object<td_api::acceptedGiftTypes>(!disallow_unlimited_stargifts_, !disallow_limited_stargifts_,
-                                                        !disallow_unique_stargifts_, !disallow_premium_gifts_);
-}
-
-telegram_api::object_ptr<telegram_api::disallowedGiftsSettings>
-DisallowedGiftsSettings::get_input_disallowed_gifts_settings() const {
-  if (is_default()) {
-    return nullptr;
-  }
-  return telegram_api::make_object<telegram_api::disallowedGiftsSettings>(
-      0, disallow_unlimited_stargifts_, disallow_limited_stargifts_, disallow_unique_stargifts_,
-      disallow_premium_gifts_);
-}
-
-bool operator==(const DisallowedGiftsSettings &lhs, const DisallowedGiftsSettings &rhs) {
-  return lhs.disallow_unlimited_stargifts_ == rhs.disallow_unlimited_stargifts_ &&
-         lhs.disallow_limited_stargifts_ == rhs.disallow_limited_stargifts_ &&
-         lhs.disallow_unique_stargifts_ == rhs.disallow_unique_stargifts_ &&
-         lhs.disallow_premium_gifts_ == rhs.disallow_premium_gifts_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DisallowedGiftsSettings &settings) {
-  if (!settings.disallow_unlimited_stargifts_) {
-    string_builder << "(unlimited)";
-  }
-  if (!settings.disallow_limited_stargifts_) {
-    string_builder << "(limited)";
-  }
-  if (!settings.disallow_unique_stargifts_) {
-    string_builder << "(unique)";
-  }
-  if (!settings.disallow_premium_gifts_) {
-    string_builder << "(premium)";
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DisallowedGiftsSettings.h b/third-party/td/td/td/telegram/DisallowedGiftsSettings.h
deleted file mode 100644
index c326dd24f5..0000000000
--- a/third-party/td/td/td/telegram/DisallowedGiftsSettings.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class DisallowedGiftsSettings {
-  bool disallow_unlimited_stargifts_ = false;
-  bool disallow_limited_stargifts_ = false;
-  bool disallow_unique_stargifts_ = false;
-  bool disallow_premium_gifts_ = false;
-
-  friend bool operator==(const DisallowedGiftsSettings &lhs, const DisallowedGiftsSettings &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const DisallowedGiftsSettings &settings);
-
- public:
-  DisallowedGiftsSettings() = default;
-
-  explicit DisallowedGiftsSettings(telegram_api::object_ptr<telegram_api::disallowedGiftsSettings> &&settings);
-
-  explicit DisallowedGiftsSettings(const td_api::object_ptr<td_api::acceptedGiftTypes> &types);
-
-  td_api::object_ptr<td_api::acceptedGiftTypes> get_accepted_gift_types_object() const;
-
-  telegram_api::object_ptr<telegram_api::disallowedGiftsSettings> get_input_disallowed_gifts_settings() const;
-
-  bool is_default() const {
-    return !disallow_unlimited_stargifts_ && !disallow_limited_stargifts_ && !disallow_unique_stargifts_ &&
-           !disallow_premium_gifts_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const DisallowedGiftsSettings &lhs, const DisallowedGiftsSettings &rhs);
-
-inline bool operator!=(const DisallowedGiftsSettings &lhs, const DisallowedGiftsSettings &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DisallowedGiftsSettings &settings);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DisallowedGiftsSettings.hpp b/third-party/td/td/td/telegram/DisallowedGiftsSettings.hpp
deleted file mode 100644
index 8b7feab9f8..0000000000
--- a/third-party/td/td/td/telegram/DisallowedGiftsSettings.hpp
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DisallowedGiftsSettings.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void DisallowedGiftsSettings::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(disallow_unlimited_stargifts_);
-  STORE_FLAG(disallow_limited_stargifts_);
-  STORE_FLAG(disallow_unique_stargifts_);
-  STORE_FLAG(disallow_premium_gifts_);
-  END_STORE_FLAGS();
-}
-
-template <class ParserT>
-void DisallowedGiftsSettings::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(disallow_unlimited_stargifts_);
-  PARSE_FLAG(disallow_limited_stargifts_);
-  PARSE_FLAG(disallow_unique_stargifts_);
-  PARSE_FLAG(disallow_premium_gifts_);
-  END_PARSE_FLAGS();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Document.cpp b/third-party/td/td/td/telegram/Document.cpp
deleted file mode 100644
index ad29d5ddfc..0000000000
--- a/third-party/td/td/td/telegram/Document.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Document.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/VideoNotesManager.h"
-#include "td/telegram/VideosManager.h"
-
-#include "td/utils/algorithm.h"
-
-namespace td {
-
-vector<FileId> Document::get_file_ids(const Td *td) const {
-  vector<FileId> result;
-  append_file_ids(td, result);
-  return result;
-}
-
-void Document::append_file_ids(const Td *td, vector<FileId> &file_ids) const {
-  if (!file_id.is_valid() || empty()) {
-    return;
-  }
-
-  if (type == Type::Sticker) {
-    append(file_ids, td->stickers_manager_->get_sticker_file_ids(file_id));
-    return;
-  }
-
-  file_ids.push_back(file_id);
-
-  FileId thumbnail_file_id = [&] {
-    switch (type) {
-      case Type::Animation:
-        return td->animations_manager_->get_animation_thumbnail_file_id(file_id);
-      case Type::Audio:
-        return td->audios_manager_->get_audio_thumbnail_file_id(file_id);
-      case Type::General:
-        return td->documents_manager_->get_document_thumbnail_file_id(file_id);
-      case Type::Video:
-        return td->videos_manager_->get_video_thumbnail_file_id(file_id);
-      case Type::VideoNote:
-        return td->video_notes_manager_->get_video_note_thumbnail_file_id(file_id);
-      default:
-        return FileId();
-    }
-  }();
-  if (thumbnail_file_id.is_valid()) {
-    file_ids.push_back(thumbnail_file_id);
-  }
-
-  FileId animated_thumbnail_file_id = [&] {
-    switch (type) {
-      case Type::Animation:
-        return td->animations_manager_->get_animation_animated_thumbnail_file_id(file_id);
-      case Type::Video:
-        return td->videos_manager_->get_video_animated_thumbnail_file_id(file_id);
-      default:
-        return FileId();
-    }
-  }();
-  if (animated_thumbnail_file_id.is_valid()) {
-    file_ids.push_back(animated_thumbnail_file_id);
-  }
-
-  if (type == Type::Audio) {
-    td->audios_manager_->append_audio_album_cover_file_ids(file_id, file_ids);
-  }
-}
-
-bool operator==(const Document &lhs, const Document &rhs) {
-  return lhs.type == rhs.type && lhs.file_id == rhs.file_id;
-}
-
-bool operator!=(const Document &lhs, const Document &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Document::Type &document_type) {
-  switch (document_type) {
-    case Document::Type::Unknown:
-      return string_builder << "Unknown";
-    case Document::Type::Animation:
-      return string_builder << "Animation";
-    case Document::Type::Audio:
-      return string_builder << "Audio";
-    case Document::Type::General:
-      return string_builder << "Document";
-    case Document::Type::Sticker:
-      return string_builder << "Sticker";
-    case Document::Type::Video:
-      return string_builder << "Video";
-    case Document::Type::VideoNote:
-      return string_builder << "VideoNote";
-    case Document::Type::VoiceNote:
-      return string_builder << "VoiceNote";
-    default:
-      return string_builder << "Unreachable";
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Document &document) {
-  return string_builder << '[' << document.type << ' ' << document.file_id << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Document.h b/third-party/td/td/td/telegram/Document.h
deleted file mode 100644
index 750f0fb519..0000000000
--- a/third-party/td/td/td/telegram/Document.h
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-struct Document {
-  // append only
-  enum class Type : int32 { Unknown, Animation, Audio, General, Sticker, Video, VideoNote, VoiceNote };
-
-  Type type = Type::Unknown;
-  FileId file_id;
-
-  Document() = default;
-  Document(Type type, FileId file_id) : type(type), file_id(file_id) {
-  }
-
-  bool empty() const {
-    return type == Type::Unknown;
-  }
-
-  vector<FileId> get_file_ids(const Td *td) const;
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const;
-};
-
-bool operator==(const Document &lhs, const Document &rhs);
-
-bool operator!=(const Document &lhs, const Document &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Document::Type &document_type);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Document &document);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Document.hpp b/third-party/td/td/td/telegram/Document.hpp
deleted file mode 100644
index 021e6e8924..0000000000
--- a/third-party/td/td/td/telegram/Document.hpp
+++ /dev/null
@@ -1,107 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Document.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AnimationsManager.hpp"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AudiosManager.hpp"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/DocumentsManager.hpp"
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/Td.h"
-#include "td/telegram/VideoNotesManager.h"
-#include "td/telegram/VideoNotesManager.hpp"
-#include "td/telegram/VideosManager.h"
-#include "td/telegram/VideosManager.hpp"
-#include "td/telegram/VoiceNotesManager.h"
-#include "td/telegram/VoiceNotesManager.hpp"
-
-#include "td/utils/logging.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const Document &document, StorerT &storer) {
-  Td *td = storer.context()->td().get_actor_unsafe();
-  CHECK(td != nullptr);
-
-  store(document.type, storer);
-  switch (document.type) {
-    case Document::Type::Animation:
-      td->animations_manager_->store_animation(document.file_id, storer);
-      break;
-    case Document::Type::Audio:
-      td->audios_manager_->store_audio(document.file_id, storer);
-      break;
-    case Document::Type::General:
-      td->documents_manager_->store_document(document.file_id, storer);
-      break;
-    case Document::Type::Sticker:
-      td->stickers_manager_->store_sticker(document.file_id, false, storer, "Document");
-      break;
-    case Document::Type::Video:
-      td->videos_manager_->store_video(document.file_id, storer);
-      break;
-    case Document::Type::VideoNote:
-      td->video_notes_manager_->store_video_note(document.file_id, storer);
-      break;
-    case Document::Type::VoiceNote:
-      td->voice_notes_manager_->store_voice_note(document.file_id, storer);
-      break;
-    case Document::Type::Unknown:
-    default:
-      UNREACHABLE();
-  }
-}
-
-template <class ParserT>
-void parse(Document &document, ParserT &parser) {
-  Td *td = parser.context()->td().get_actor_unsafe();
-  CHECK(td != nullptr);
-
-  parse(document.type, parser);
-  switch (document.type) {
-    case Document::Type::Animation:
-      document.file_id = td->animations_manager_->parse_animation(parser);
-      break;
-    case Document::Type::Audio:
-      document.file_id = td->audios_manager_->parse_audio(parser);
-      break;
-    case Document::Type::General:
-      document.file_id = td->documents_manager_->parse_document(parser);
-      break;
-    case Document::Type::Sticker:
-      document.file_id = td->stickers_manager_->parse_sticker(false, parser);
-      break;
-    case Document::Type::Video:
-      document.file_id = td->videos_manager_->parse_video(parser);
-      break;
-    case Document::Type::VideoNote:
-      document.file_id = td->video_notes_manager_->parse_video_note(parser);
-      break;
-    case Document::Type::VoiceNote:
-      document.file_id = td->voice_notes_manager_->parse_voice_note(parser);
-      break;
-    case Document::Type::Unknown:
-    default:
-      LOG(ERROR) << "Have invalid Document type " << static_cast<int32>(document.type);
-      document = Document();
-      return;
-  }
-  if (!document.file_id.is_valid()) {
-    LOG(ERROR) << "Parse invalid document.file_id";
-    document = Document();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DocumentsManager.cpp b/third-party/td/td/td/telegram/DocumentsManager.cpp
deleted file mode 100644
index e0e682fad3..0000000000
--- a/third-party/td/td/td/telegram/DocumentsManager.cpp
+++ /dev/null
@@ -1,767 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DocumentsManager.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/VideoNotesManager.h"
-#include "td/telegram/VideosManager.h"
-#include "td/telegram/VoiceNotesManager.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/MimeType.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/utf8.h"
-
-#include <cmath>
-#include <limits>
-
-namespace td {
-
-DocumentsManager::DocumentsManager(Td *td) : td_(td) {
-}
-
-DocumentsManager::~DocumentsManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), documents_);
-}
-
-tl_object_ptr<td_api::document> DocumentsManager::get_document_object(FileId file_id,
-                                                                      PhotoFormat thumbnail_format) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto document = get_document(file_id);
-  CHECK(document != nullptr);
-  return make_tl_object<td_api::document>(
-      document->file_name, document->mime_type, get_minithumbnail_object(document->minithumbnail),
-      get_thumbnail_object(td_->file_manager_.get(), document->thumbnail, thumbnail_format),
-      td_->file_manager_->get_file_object(file_id));
-}
-
-Document DocumentsManager::on_get_document(RemoteDocument remote_document, DialogId owner_dialog_id,
-                                           bool is_self_destructing, MultiPromiseActor *load_data_multipromise_ptr,
-                                           Document::Type default_document_type, Subtype document_subtype) {
-  telegram_api::object_ptr<telegram_api::documentAttributeAnimated> animated;
-  telegram_api::object_ptr<telegram_api::documentAttributeVideo> video;
-  telegram_api::object_ptr<telegram_api::documentAttributeAudio> audio;
-  telegram_api::object_ptr<telegram_api::documentAttributeSticker> sticker;
-  telegram_api::object_ptr<telegram_api::documentAttributeCustomEmoji> custom_emoji;
-  Dimensions dimensions;
-  string file_name;
-  bool has_stickers = false;
-  int32 type_attributes = 0;
-  for (auto &attribute : remote_document.attributes) {
-    switch (attribute->get_id()) {
-      case telegram_api::documentAttributeImageSize::ID: {
-        auto image_size = telegram_api::move_object_as<telegram_api::documentAttributeImageSize>(attribute);
-        dimensions =
-            get_dimensions(image_size->w_, image_size->h_, oneline(to_string(remote_document.document)).c_str());
-        break;
-      }
-      case telegram_api::documentAttributeAnimated::ID:
-        animated = telegram_api::move_object_as<telegram_api::documentAttributeAnimated>(attribute);
-        type_attributes++;
-        break;
-      case telegram_api::documentAttributeSticker::ID:
-        sticker = telegram_api::move_object_as<telegram_api::documentAttributeSticker>(attribute);
-        type_attributes++;
-        break;
-      case telegram_api::documentAttributeVideo::ID:
-        video = telegram_api::move_object_as<telegram_api::documentAttributeVideo>(attribute);
-        type_attributes++;
-        break;
-      case telegram_api::documentAttributeAudio::ID:
-        audio = telegram_api::move_object_as<telegram_api::documentAttributeAudio>(attribute);
-        type_attributes++;
-        break;
-      case telegram_api::documentAttributeFilename::ID:
-        file_name = std::move(static_cast<telegram_api::documentAttributeFilename *>(attribute.get())->file_name_);
-        break;
-      case telegram_api::documentAttributeHasStickers::ID:
-        has_stickers = true;
-        break;
-      case telegram_api::documentAttributeCustomEmoji::ID:
-        custom_emoji = telegram_api::move_object_as<telegram_api::documentAttributeCustomEmoji>(attribute);
-        type_attributes++;
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-  bool video_is_animation = false;
-  double video_precise_duration = 0.0;
-  int32 video_duration = 0;
-  int32 video_preload_prefix_size = 0;
-  double video_start_ts = 0.0;
-  string video_waveform;
-  if (video != nullptr) {
-    video_precise_duration = video->duration_;
-    video_duration = static_cast<int32>(std::ceil(video->duration_));
-    if (document_subtype == Subtype::Story) {
-      video_preload_prefix_size = video->preload_prefix_size_;
-      video_start_ts = video->video_start_ts_;
-    }
-    video_is_animation = video->nosound_;
-    auto video_dimensions = get_dimensions(video->w_, video->h_, "documentAttributeVideo");
-    if (dimensions.width == 0 || (video_dimensions.width != 0 && video_dimensions != dimensions)) {
-      if (dimensions.width != 0) {
-        LOG(ERROR) << "Receive ambiguous video dimensions " << dimensions << " and " << video_dimensions;
-      }
-      dimensions = video_dimensions;
-    }
-    if (audio != nullptr) {
-      video_waveform = audio->waveform_.as_slice().str();
-      type_attributes--;
-      audio = nullptr;
-    }
-    if (animated != nullptr && default_document_type == Document::Type::Video) {
-      type_attributes--;
-      animated = nullptr;
-    }
-
-    if (animated != nullptr) {
-      type_attributes--;
-      if (video->round_message_) {
-        // video note without sound
-        animated = nullptr;
-      } else if (sticker != nullptr || custom_emoji != nullptr) {
-        // sticker
-        type_attributes--;
-        animated = nullptr;
-        video = nullptr;
-      } else {
-        // video animation
-        video = nullptr;
-      }
-    } else if (sticker != nullptr || custom_emoji != nullptr) {
-      // some stickers uploaded before release
-      type_attributes--;
-      video = nullptr;
-    }
-  } else if (animated != nullptr && default_document_type == Document::Type::Video) {
-    LOG(ERROR) << "Receive " << to_string(remote_document.document) << " with " << to_string(animated)
-               << " and without video";
-    type_attributes--;
-    animated = nullptr;
-  }
-  if (animated != nullptr && audio != nullptr) {
-    // animation send as audio
-    type_attributes--;
-    audio = nullptr;
-  }
-  if (animated != nullptr && sticker != nullptr) {
-    // animation send as sticker
-    type_attributes--;
-    sticker = nullptr;
-  }
-  if (animated != nullptr && custom_emoji != nullptr) {
-    // just in case
-    type_attributes--;
-    custom_emoji = nullptr;
-  }
-
-  auto document_type = default_document_type;
-  FileType file_type = FileType::Document;
-  Slice default_extension;
-  bool supports_streaming = false;
-  string video_codec;
-  StickerFormat sticker_format = StickerFormat::Unknown;
-  PhotoFormat thumbnail_format = PhotoFormat::Jpeg;
-  if (type_attributes == 1 || default_document_type != Document::Type::General) {  // not a general document
-    if (animated != nullptr || default_document_type == Document::Type::Animation) {
-      document_type = Document::Type::Animation;
-      file_type = FileType::Animation;
-      default_extension = Slice("mp4");
-    } else if (audio != nullptr || default_document_type == Document::Type::Audio ||
-               default_document_type == Document::Type::VoiceNote) {
-      bool is_voice_note = default_document_type == Document::Type::VoiceNote;
-      if (audio != nullptr) {
-        is_voice_note = audio->voice_;
-      }
-      if (is_voice_note) {
-        document_type = Document::Type::VoiceNote;
-        file_type = is_self_destructing ? FileType::SelfDestructingVoiceNote : FileType::VoiceNote;
-        default_extension = Slice("oga");
-        file_name.clear();
-      } else {
-        document_type = Document::Type::Audio;
-        file_type = FileType::Audio;
-        default_extension = Slice("mp3");
-      }
-    } else if (sticker != nullptr || custom_emoji != nullptr || default_document_type == Document::Type::Sticker) {
-      document_type = Document::Type::Sticker;
-      file_type = FileType::Sticker;
-      sticker_format = StickerFormat::Webp;
-      default_extension = Slice("webp");
-      owner_dialog_id = DialogId();
-      file_name.clear();
-    } else if (video != nullptr || default_document_type == Document::Type::Video ||
-               default_document_type == Document::Type::VideoNote) {
-      bool is_video_note = default_document_type == Document::Type::VideoNote;
-      if (video != nullptr) {
-        is_video_note = video->round_message_;
-        if (!is_video_note) {
-          supports_streaming = video->supports_streaming_;
-          video_codec = std::move(video->video_codec_);
-        }
-      }
-      if (is_video_note) {
-        document_type = Document::Type::VideoNote;
-        file_type = is_self_destructing ? FileType::SelfDestructingVideoNote : FileType::VideoNote;
-        file_name.clear();
-      } else {
-        document_type = Document::Type::Video;
-        file_type = is_self_destructing ? FileType::SelfDestructingVideo : FileType::Video;
-      }
-      default_extension = Slice("mp4");
-    }
-  } else if (type_attributes >= 2) {
-    LOG(WARNING) << "Receive document with more than 1 type attribute: animated = " << to_string(animated)
-                 << ", sticker = " << to_string(sticker) << ", custom_emoji = " << to_string(custom_emoji)
-                 << ", video = " << to_string(video) << ", audio = " << to_string(audio)
-                 << ", file_name = " << file_name << ", dimensions = " << dimensions
-                 << ", has_stickers = " << has_stickers;
-  }
-
-  switch (document_subtype) {
-    case Subtype::Background:
-      if (document_type != Document::Type::General) {
-        LOG(ERROR) << "Receive background of type " << document_type;
-        document_type = Document::Type::General;
-      }
-      file_type = FileType::Background;
-      default_extension = Slice("jpg");
-      break;
-    case Subtype::Pattern:
-      if (document_type != Document::Type::General) {
-        LOG(ERROR) << "Receive background of type " << document_type;
-        document_type = Document::Type::General;
-      }
-      file_type = FileType::Background;
-      default_extension = Slice("png");
-      thumbnail_format = PhotoFormat::Png;
-      break;
-    case Subtype::Ringtone:
-      if (document_type != Document::Type::Audio) {
-        LOG(ERROR) << "Receive notification tone of type " << document_type;
-        document_type = Document::Type::Audio;
-      }
-      file_type = FileType::Ringtone;
-      default_extension = Slice("mp3");
-      break;
-    case Subtype::Story:
-      if (document_type != Document::Type::Video) {
-        LOG(ERROR) << "Receive story of type " << document_type;
-        document_type = Document::Type::Video;
-      }
-      file_type = FileType::VideoStory;
-      default_extension = Slice("mp4");
-      break;
-    default:
-      break;
-  }
-
-  int64 id;
-  int64 access_hash;
-  int32 dc_id;
-  int64 size;
-  int32 date = 0;
-  string mime_type;
-  string file_reference;
-  string minithumbnail;
-  PhotoSize thumbnail;
-  AnimationSize animated_thumbnail;
-  FileId premium_animation_file_id;
-  FileEncryptionKey encryption_key;
-  bool is_web = false;
-  bool is_web_no_proxy = false;
-  string url;
-  FileLocationSource source = FileLocationSource::FromServer;
-
-  auto fix_tgs_sticker_type = [&] {
-    if (mime_type != "application/x-tgsticker") {
-      return;
-    }
-
-    sticker_format = StickerFormat::Tgs;
-    default_extension = Slice("tgs");
-    if (document_type == Document::Type::General) {
-      document_type = Document::Type::Sticker;
-      file_type = FileType::Sticker;
-      owner_dialog_id = DialogId();
-      file_name.clear();
-      thumbnail_format = PhotoFormat::Webp;
-    }
-  };
-
-  if (remote_document.document != nullptr) {
-    auto document = std::move(remote_document.document);
-
-    id = document->id_;
-    access_hash = document->access_hash_;
-    dc_id = document->dc_id_;
-    size = document->size_;
-    if (document_subtype == Subtype::Ringtone) {
-      date = document->date_;
-    }
-    mime_type = std::move(document->mime_type_);
-    file_reference = document->file_reference_.as_slice().str();
-
-    if (document_type == Document::Type::Sticker && StickersManager::has_webp_thumbnail(document->thumbs_)) {
-      thumbnail_format = PhotoFormat::Webp;
-    }
-    fix_tgs_sticker_type();
-
-    if (owner_dialog_id.get_type() == DialogType::SecretChat) {
-      // secret_api::decryptedMessageMediaExternalDocument
-      if (document_type != Document::Type::Sticker) {
-        LOG(ERROR) << "Receive " << document_type << " in " << owner_dialog_id;
-        return {};
-      }
-      source = FileLocationSource::FromUser;
-    }
-
-    if (document_type != Document::Type::VoiceNote) {
-      for (auto &thumbnail_ptr : document->thumbs_) {
-        auto photo_size = get_photo_size(td_->file_manager_.get(), PhotoSizeSource::thumbnail(FileType::Thumbnail, 0),
-                                         id, access_hash, file_reference, DcId::create(dc_id), owner_dialog_id,
-                                         std::move(thumbnail_ptr), thumbnail_format);
-        if (photo_size.get_offset() == 0) {
-          if (!thumbnail.file_id.is_valid()) {
-            thumbnail = std::move(photo_size.get<0>());
-          }
-        } else {
-          minithumbnail = std::move(photo_size.get<1>());
-        }
-      }
-    }
-    for (auto &thumbnail_ptr : document->video_thumbs_) {
-      if (thumbnail_ptr->get_id() != telegram_api::videoSize::ID) {
-        continue;
-      }
-      auto video_size = move_tl_object_as<telegram_api::videoSize>(thumbnail_ptr);
-      if (video_size->type_ == "v") {
-        if (!animated_thumbnail.file_id.is_valid()) {
-          animated_thumbnail =
-              get_animation_size(td_, PhotoSizeSource::thumbnail(FileType::Thumbnail, 0), id, access_hash,
-                                 file_reference, DcId::create(dc_id), owner_dialog_id, std::move(video_size));
-        }
-      } else if (video_size->type_ == "f") {
-        if (!premium_animation_file_id.is_valid()) {
-          premium_animation_file_id =
-              register_photo_size(td_->file_manager_.get(), PhotoSizeSource::thumbnail(FileType::Thumbnail, 'f'), id,
-                                  access_hash, file_reference, owner_dialog_id, video_size->size_, DcId::create(dc_id),
-                                  get_sticker_format_photo_format(sticker_format), "on_get_document");
-        }
-      }
-    }
-  } else if (remote_document.secret_file != nullptr) {
-    CHECK(remote_document.secret_document != nullptr);
-    auto file = std::move(remote_document.secret_file);
-    auto document = std::move(remote_document.secret_document);
-
-    id = file->id_;
-    access_hash = file->access_hash_;
-    dc_id = file->dc_id_;
-    size = document->size_;
-    mime_type = std::move(document->mime_type_);
-    file_type = FileType::Encrypted;
-    encryption_key = FileEncryptionKey{document->key_.as_slice(), document->iv_.as_slice()};
-    if (encryption_key.empty()) {
-      return {};
-    }
-
-    // do not allow encrypted TGS stickers
-    // fix_tgs_sticker_type();
-
-    if (document_type != Document::Type::VoiceNote) {
-      thumbnail = get_secret_thumbnail_photo_size(td_->file_manager_.get(), std::move(document->thumb_),
-                                                  owner_dialog_id, document->thumb_w_, document->thumb_h_);
-    }
-  } else {
-    is_web = true;
-    id = Random::fast(0, std::numeric_limits<int32>::max());
-    dc_id = 0;
-    access_hash = 0;
-    if (remote_document.thumbnail.type == 'v') {
-      static_cast<PhotoSize &>(animated_thumbnail) = std::move(remote_document.thumbnail);
-    } else {
-      thumbnail = std::move(remote_document.thumbnail);
-      if (remote_document.thumbnail.type == 'g') {
-        thumbnail_format = PhotoFormat::Gif;
-      }
-    }
-
-    auto web_document_ptr = std::move(remote_document.web_document);
-    switch (web_document_ptr->get_id()) {
-      case telegram_api::webDocument::ID: {
-        auto web_document = move_tl_object_as<telegram_api::webDocument>(web_document_ptr);
-        auto r_http_url = parse_url(web_document->url_);
-        if (r_http_url.is_error()) {
-          LOG(ERROR) << "Can't parse URL " << web_document->url_;
-          return {};
-        }
-        auto http_url = r_http_url.move_as_ok();
-
-        access_hash = web_document->access_hash_;
-        url = http_url.get_url();
-        file_name = get_url_query_file_name(http_url.query_);
-        mime_type = std::move(web_document->mime_type_);
-        size = web_document->size_;
-        break;
-      }
-      case telegram_api::webDocumentNoProxy::ID: {
-        is_web_no_proxy = true;
-        auto web_document = move_tl_object_as<telegram_api::webDocumentNoProxy>(web_document_ptr);
-
-        if (web_document->url_.find('.') == string::npos) {
-          LOG(ERROR) << "Receive invalid URL " << web_document->url_;
-          return {};
-        }
-
-        url = std::move(web_document->url_);
-        file_name = get_url_file_name(url);
-        mime_type = std::move(web_document->mime_type_);
-        size = web_document->size_;
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    // do not allow web TGS stickers
-    // fix_tgs_sticker_type();
-  }
-  if (document_type == Document::Type::Sticker && mime_type == "video/webm") {
-    sticker_format = StickerFormat::Webm;
-    default_extension = Slice("webm");
-  }
-  if (file_type == FileType::Encrypted && document_type == Document::Type::Sticker &&
-      size > get_max_sticker_file_size(sticker_format, StickerType::Regular, false)) {
-    document_type = Document::Type::General;
-  }
-
-  LOG(DEBUG) << "Receive document with ID = " << id << " of type " << document_type;
-  if (!is_web && !DcId::is_valid(dc_id)) {
-    LOG(ERROR) << "Wrong dc_id = " << dc_id;
-    return {};
-  }
-
-  file_name = strip_empty_characters(file_name, 255, true);
-
-  auto suggested_file_name = file_name;
-  if (suggested_file_name.empty()) {
-    suggested_file_name = to_string(static_cast<uint64>(id));
-    auto extension = MimeType::to_extension(mime_type, default_extension);
-    if (!extension.empty()) {
-      suggested_file_name += '.';
-      suggested_file_name += extension;
-    }
-  }
-
-  FileId file_id;
-  if (!is_web) {
-    file_id = td_->file_manager_->register_remote(
-        FullRemoteFileLocation(file_type, id, access_hash, DcId::internal(dc_id), std::move(file_reference)), source,
-        owner_dialog_id, size, 0, suggested_file_name);
-    if (!encryption_key.empty()) {
-      td_->file_manager_->set_encryption_key(file_id, std::move(encryption_key));
-    }
-  } else if (!is_web_no_proxy) {
-    file_id = td_->file_manager_->register_remote(FullRemoteFileLocation(file_type, url, access_hash), source,
-                                                  owner_dialog_id, 0, size, file_name);
-  } else {
-    auto r_file_id = td_->file_manager_->from_persistent_id(url, file_type);
-    if (r_file_id.is_error()) {
-      LOG(ERROR) << "Can't register URL: " << r_file_id.error();
-      return {};
-    }
-    file_id = r_file_id.move_as_ok();
-  }
-
-  if (dimensions.width != 0 && thumbnail.dimensions.width != 0) {
-    if ((thumbnail.dimensions.width < thumbnail.dimensions.height && dimensions.width > dimensions.height) ||
-        (thumbnail.dimensions.width > thumbnail.dimensions.height && dimensions.width < dimensions.height)) {
-      // fix for wrong dimensions specified by the Android application
-      std::swap(dimensions.width, dimensions.height);
-    }
-  }
-
-  switch (document_type) {
-    case Document::Type::Animation:
-      td_->animations_manager_->create_animation(
-          file_id, std::move(minithumbnail), std::move(thumbnail), std::move(animated_thumbnail), has_stickers,
-          vector<FileId>(), std::move(file_name), std::move(mime_type), video_duration, dimensions, !is_web);
-      break;
-    case Document::Type::Audio: {
-      int32 duration = 0;
-      string title;
-      string performer;
-      if (audio != nullptr) {
-        duration = audio->duration_;
-        title = std::move(audio->title_);
-        performer = std::move(audio->performer_);
-      }
-      td_->audios_manager_->create_audio(file_id, std::move(minithumbnail), std::move(thumbnail), std::move(file_name),
-                                         std::move(mime_type), duration, std::move(title), std::move(performer), date,
-                                         !is_web);
-      break;
-    }
-    case Document::Type::General:
-      create_document(file_id, std::move(minithumbnail), std::move(thumbnail), std::move(file_name),
-                      std::move(mime_type), !is_web);
-      break;
-    case Document::Type::Sticker:
-      if (thumbnail_format == PhotoFormat::Jpeg) {
-        minithumbnail = string();
-      }
-      td_->stickers_manager_->create_sticker(file_id, premium_animation_file_id, std::move(minithumbnail),
-                                             std::move(thumbnail), dimensions, std::move(sticker),
-                                             std::move(custom_emoji), sticker_format, load_data_multipromise_ptr);
-      break;
-    case Document::Type::Video:
-      td_->videos_manager_->create_video(file_id, std::move(minithumbnail), std::move(thumbnail),
-                                         std::move(animated_thumbnail), has_stickers, vector<FileId>(),
-                                         std::move(file_name), std::move(mime_type), video_duration,
-                                         video_precise_duration, dimensions, supports_streaming, video_is_animation,
-                                         video_preload_prefix_size, video_start_ts, std::move(video_codec), !is_web);
-      break;
-    case Document::Type::VideoNote:
-      td_->video_notes_manager_->create_video_note(file_id, std::move(minithumbnail), std::move(thumbnail),
-                                                   video_duration, dimensions, std::move(video_waveform), !is_web);
-      break;
-    case Document::Type::VoiceNote: {
-      int32 duration = 0;
-      string waveform;
-      if (audio != nullptr) {
-        duration = audio->duration_;
-        waveform = audio->waveform_.as_slice().str();
-      }
-      td_->voice_notes_manager_->create_voice_note(file_id, std::move(mime_type), duration, std::move(waveform),
-                                                   !is_web);
-      break;
-    }
-    case Document::Type::Unknown:
-    default:
-      UNREACHABLE();
-  }
-  return {document_type, file_id};
-}
-
-FileId DocumentsManager::on_get_document(unique_ptr<GeneralDocument> new_document, bool replace) {
-  auto file_id = new_document->file_id;
-  CHECK(file_id.is_valid());
-  LOG(INFO) << "Receive document " << file_id;
-  auto &d = documents_[new_document->file_id];
-  if (d == nullptr) {
-    d = std::move(new_document);
-  } else if (replace) {
-    CHECK(d->file_id == new_document->file_id);
-    if (d->mime_type != new_document->mime_type || d->file_name != new_document->file_name ||
-        d->minithumbnail != new_document->minithumbnail || d->thumbnail != new_document->thumbnail) {
-      d->mime_type = std::move(new_document->mime_type);
-      d->file_name = std::move(new_document->file_name);
-      d->minithumbnail = std::move(new_document->minithumbnail);
-      d->thumbnail = std::move(new_document->thumbnail);
-    }
-  }
-
-  return file_id;
-}
-
-void DocumentsManager::create_document(FileId file_id, string minithumbnail, PhotoSize thumbnail, string file_name,
-                                       string mime_type, bool replace) {
-  auto d = make_unique<GeneralDocument>();
-  d->file_id = file_id;
-  d->file_name = std::move(file_name);
-  d->mime_type = std::move(mime_type);
-  if (!td_->auth_manager_->is_bot()) {
-    d->minithumbnail = std::move(minithumbnail);
-  }
-  d->thumbnail = std::move(thumbnail);
-  on_get_document(std::move(d), replace);
-}
-
-const DocumentsManager::GeneralDocument *DocumentsManager::get_document(FileId file_id) const {
-  return documents_.get_pointer(file_id);
-}
-
-SecretInputMedia DocumentsManager::get_secret_input_media(
-    FileId document_file_id, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-    const string &caption, BufferSlice thumbnail, int32 layer) const {
-  const GeneralDocument *document = get_document(document_file_id);
-  CHECK(document != nullptr);
-  auto file_view = td_->file_manager_->get_file_view(document_file_id);
-  if (!file_view.is_encrypted_secret() || file_view.encryption_key().empty()) {
-    return SecretInputMedia{};
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr) {
-    input_file = main_remote_location->as_input_encrypted_file();
-  }
-  if (!input_file) {
-    return SecretInputMedia{};
-  }
-  if (document->thumbnail.file_id.is_valid() && thumbnail.empty()) {
-    return SecretInputMedia{};
-  }
-  vector<secret_api::object_ptr<secret_api::DocumentAttribute>> attributes;
-  if (!document->file_name.empty()) {
-    attributes.push_back(secret_api::make_object<secret_api::documentAttributeFilename>(document->file_name));
-  }
-  return {std::move(input_file),
-          std::move(thumbnail),
-          document->thumbnail.dimensions,
-          document->mime_type,
-          file_view,
-          std::move(attributes),
-          caption,
-          layer};
-}
-
-tl_object_ptr<telegram_api::InputMedia> DocumentsManager::get_input_media(
-    FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) const {
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return nullptr;
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && !main_remote_location->is_web() && input_file == nullptr) {
-    return telegram_api::make_object<telegram_api::inputMediaDocument>(
-        0, false, main_remote_location->as_input_document(), nullptr, 0, 0, string());
-  }
-  const auto *url = file_view.get_url();
-  if (url != nullptr) {
-    return telegram_api::make_object<telegram_api::inputMediaDocumentExternal>(0, false, *url, 0, nullptr, 0);
-  }
-
-  if (input_file != nullptr) {
-    const GeneralDocument *document = get_document(file_id);
-    CHECK(document != nullptr);
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    if (!document->file_name.empty()) {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeFilename>(document->file_name));
-    }
-    int32 flags = 0;
-    if (input_thumbnail != nullptr) {
-      flags |= telegram_api::inputMediaUploadedDocument::THUMB_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-        flags, false, file_view.get_type() == FileType::DocumentAsFile, false, std::move(input_file),
-        std::move(input_thumbnail), document->mime_type, std::move(attributes),
-        vector<telegram_api::object_ptr<telegram_api::InputDocument>>(), nullptr, 0, 0);
-  } else {
-    CHECK(main_remote_location == nullptr);
-  }
-
-  return nullptr;
-}
-
-FileId DocumentsManager::get_document_thumbnail_file_id(FileId file_id) const {
-  auto document = get_document(file_id);
-  CHECK(document != nullptr);
-  return document->thumbnail.file_id;
-}
-
-void DocumentsManager::delete_document_thumbnail(FileId file_id) {
-  auto &document = documents_[file_id];
-  CHECK(document != nullptr);
-  document->thumbnail = PhotoSize();
-}
-
-Slice DocumentsManager::get_document_file_name(FileId file_id) const {
-  auto document = get_document(file_id);
-  CHECK(document != nullptr);
-  return document->file_name;
-}
-
-Slice DocumentsManager::get_document_mime_type(FileId file_id) const {
-  auto document = get_document(file_id);
-  CHECK(document != nullptr);
-  return document->mime_type;
-}
-
-FileId DocumentsManager::dup_document(FileId new_id, FileId old_id) {
-  const GeneralDocument *old_document = get_document(old_id);
-  CHECK(old_document != nullptr);
-  auto &new_document = documents_[new_id];
-  if (new_document != nullptr) {
-    return new_id;
-  }
-  new_document = make_unique<GeneralDocument>(*old_document);
-  new_document->file_id = new_id;
-  return new_id;
-}
-
-void DocumentsManager::merge_documents(FileId new_id, FileId old_id) {
-  CHECK(old_id.is_valid() && new_id.is_valid());
-  CHECK(new_id != old_id);
-
-  LOG(INFO) << "Merge documents " << new_id << " and " << old_id;
-  const GeneralDocument *old_ = get_document(old_id);
-  CHECK(old_ != nullptr);
-
-  const auto *new_ = get_document(new_id);
-  if (new_ == nullptr) {
-    dup_document(new_id, old_id);
-  }
-  LOG_STATUS(td_->file_manager_->merge(new_id, old_id));
-}
-
-string DocumentsManager::get_document_search_text(FileId file_id) const {
-  auto document = get_document(file_id);
-  CHECK(document);
-  if (document->file_name.size() > 32) {
-    return document->file_name;
-  }
-  auto buf = StackAllocator::alloc(256);
-  StringBuilder sb(buf.as_slice());
-  auto stem = PathView(document->file_name).file_stem();
-  sb << document->file_name;
-  for (size_t i = 1; i + 1 < stem.size(); i++) {
-    if (is_utf8_character_first_code_unit(stem[i])) {
-      sb << " " << stem.substr(0, i);
-    }
-  }
-  if (sb.is_error()) {
-    return document->file_name;
-  }
-  return sb.as_cslice().str();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DocumentsManager.h b/third-party/td/td/td/telegram/DocumentsManager.h
deleted file mode 100644
index 72a64002b0..0000000000
--- a/third-party/td/td/td/telegram/DocumentsManager.h
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/EncryptedFile.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-#include <utility>
-
-namespace td {
-
-class MultiPromiseActor;
-class Td;
-
-class DocumentsManager {
- public:
-  explicit DocumentsManager(Td *td);
-  DocumentsManager(const DocumentsManager &) = delete;
-  DocumentsManager &operator=(const DocumentsManager &) = delete;
-  DocumentsManager(DocumentsManager &&) = delete;
-  DocumentsManager &operator=(DocumentsManager &&) = delete;
-  ~DocumentsManager();
-
-  class RemoteDocument {
-   public:
-    tl_object_ptr<telegram_api::document> document;
-    // or
-    unique_ptr<EncryptedFile> secret_file;
-    tl_object_ptr<secret_api::decryptedMessageMediaDocument> secret_document;
-    // or
-    tl_object_ptr<telegram_api::WebDocument> web_document;
-    PhotoSize thumbnail;
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-
-    RemoteDocument(tl_object_ptr<telegram_api::document> &&server_document)
-        : document(std::move(server_document))
-        , secret_file(nullptr)
-        , secret_document(nullptr)
-        , web_document(nullptr)
-        , thumbnail()
-        , attributes(std::move(document->attributes_)) {
-    }
-
-    RemoteDocument(tl_object_ptr<telegram_api::WebDocument> &&web_document, PhotoSize thumbnail,
-                   vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> &&attributes)
-        : document(nullptr)
-        , secret_file(nullptr)
-        , secret_document(nullptr)
-        , web_document(std::move(web_document))
-        , thumbnail(std::move(thumbnail))
-        , attributes(std::move(attributes)) {
-    }
-
-    RemoteDocument(unique_ptr<EncryptedFile> &&secret_file,
-                   tl_object_ptr<secret_api::decryptedMessageMediaDocument> &&secret_document,
-                   vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> &&attributes)
-        : document(nullptr)
-        , secret_file(std::move(secret_file))
-        , secret_document(std::move(secret_document))
-        , web_document(nullptr)
-        , thumbnail()
-        , attributes(std::move(attributes)) {
-    }
-  };
-
-  tl_object_ptr<td_api::document> get_document_object(FileId file_id, PhotoFormat thumbnail_format) const;
-
-  enum class Subtype : int32 { Background, Pattern, Ringtone, Story, Other };
-
-  Document on_get_document(RemoteDocument remote_document, DialogId owner_dialog_id, bool is_self_destructing,
-                           MultiPromiseActor *load_data_multipromise_ptr = nullptr,
-                           Document::Type default_document_type = Document::Type::General,
-                           Subtype document_subtype = Subtype::Other);
-
-  void create_document(FileId file_id, string minithumbnail, PhotoSize thumbnail, string file_name, string mime_type,
-                       bool replace);
-
-  SecretInputMedia get_secret_input_media(FileId document_file_id,
-                                          telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                          const string &caption, BufferSlice thumbnail, int32 layer) const;
-
-  tl_object_ptr<telegram_api::InputMedia> get_input_media(
-      FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) const;
-
-  FileId get_document_thumbnail_file_id(FileId file_id) const;
-
-  void delete_document_thumbnail(FileId file_id);
-
-  Slice get_document_file_name(FileId file_id) const;
-
-  Slice get_document_mime_type(FileId file_id) const;
-
-  FileId dup_document(FileId new_id, FileId old_id);
-
-  void merge_documents(FileId new_id, FileId old_id);
-
-  template <class StorerT>
-  void store_document(FileId file_id, StorerT &storer) const;
-
-  template <class ParserT>
-  FileId parse_document(ParserT &parser);
-
-  string get_document_search_text(FileId file_id) const;
-
- private:
-  class GeneralDocument {
-   public:
-    string file_name;
-    string mime_type;
-    string minithumbnail;
-    PhotoSize thumbnail;
-    FileId file_id;
-  };
-
-  const GeneralDocument *get_document(FileId file_id) const;
-
-  FileId on_get_document(unique_ptr<GeneralDocument> new_document, bool replace);
-
-  Td *td_;
-  WaitFreeHashMap<FileId, unique_ptr<GeneralDocument>, FileIdHash> documents_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DocumentsManager.hpp b/third-party/td/td/td/telegram/DocumentsManager.hpp
deleted file mode 100644
index 106e6720ab..0000000000
--- a/third-party/td/td/td/telegram/DocumentsManager.hpp
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DocumentsManager.h"
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/PhotoSize.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void DocumentsManager::store_document(FileId file_id, StorerT &storer) const {
-  const GeneralDocument *document = get_document(file_id);
-  CHECK(document != nullptr);
-  bool has_file_name = !document->file_name.empty();
-  bool has_mime_type = !document->mime_type.empty();
-  bool has_minithumbnail = !document->minithumbnail.empty();
-  bool has_thumbnail = document->thumbnail.file_id.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_file_name);
-  STORE_FLAG(has_mime_type);
-  STORE_FLAG(has_minithumbnail);
-  STORE_FLAG(has_thumbnail);
-  END_STORE_FLAGS();
-  if (has_file_name) {
-    store(document->file_name, storer);
-  }
-  if (has_mime_type) {
-    store(document->mime_type, storer);
-  }
-  if (has_minithumbnail) {
-    store(document->minithumbnail, storer);
-  }
-  if (has_thumbnail) {
-    store(document->thumbnail, storer);
-  }
-  store(file_id, storer);
-}
-
-template <class ParserT>
-FileId DocumentsManager::parse_document(ParserT &parser) {
-  auto document = make_unique<GeneralDocument>();
-  bool has_file_name;
-  bool has_mime_type;
-  bool has_minithumbnail;
-  bool has_thumbnail;
-  if (parser.version() >= static_cast<int32>(Version::AddDocumentFlags)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_file_name);
-    PARSE_FLAG(has_mime_type);
-    PARSE_FLAG(has_minithumbnail);
-    PARSE_FLAG(has_thumbnail);
-    END_PARSE_FLAGS();
-  } else {
-    has_file_name = true;
-    has_mime_type = true;
-    has_minithumbnail = parser.version() >= static_cast<int32>(Version::SupportMinithumbnails);
-    has_thumbnail = true;
-  }
-  if (has_file_name) {
-    parse(document->file_name, parser);
-  }
-  if (has_mime_type) {
-    parse(document->mime_type, parser);
-  }
-  if (has_minithumbnail) {
-    parse(document->minithumbnail, parser);
-  }
-  if (has_thumbnail) {
-    parse(document->thumbnail, parser);
-  }
-  parse(document->file_id, parser);
-  if (parser.get_error() != nullptr || !document->file_id.is_valid()) {
-    return FileId();
-  }
-  return on_get_document(std::move(document), false);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DownloadManager.cpp b/third-party/td/td/td/telegram/DownloadManager.cpp
deleted file mode 100644
index eaca24bd2e..0000000000
--- a/third-party/td/td/td/telegram/DownloadManager.cpp
+++ /dev/null
@@ -1,838 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DownloadManager.h"
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/files/FileSourceId.hpp"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/actor/MultiPromise.h"
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Hints.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-#include <functional>
-#include <limits>
-#include <set>
-
-namespace td {
-
-struct FileDownloadInDatabase {
-  int64 download_id{};
-  FileId file_id;
-  FileSourceId file_source_id;
-  int32 priority{};
-  int32 created_at{};
-  int32 completed_at{};
-  bool is_paused{};
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_paused);
-    END_STORE_FLAGS();
-    td::store(download_id, storer);
-    td::store(file_id, storer);
-    td::store(file_source_id, storer);
-    td::store(priority, storer);
-    td::store(created_at, storer);
-    td::store(completed_at, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_paused);
-    END_PARSE_FLAGS();
-    td::parse(download_id, parser);
-    td::parse(file_id, parser);
-    td::parse(file_source_id, parser);
-    td::parse(priority, parser);
-    td::parse(created_at, parser);
-    td::parse(completed_at, parser);
-  }
-};
-
-class DownloadManagerImpl final : public DownloadManager {
- public:
-  explicit DownloadManagerImpl(unique_ptr<Callback> callback) : callback_(std::move(callback)) {
-  }
-
-  void start_up() final {
-    init();
-  }
-
-  void after_get_difference() final {
-    load_database_files("after_get_difference");
-  }
-
-  void toggle_is_paused(FileId file_id, bool is_paused, Promise<Unit> promise) final {
-    TRY_STATUS_PROMISE(promise, check_is_active("toggle_is_paused"));
-    TRY_RESULT_PROMISE(promise, file_info_ptr, get_file_info_ptr(file_id));
-    toggle_is_paused(*file_info_ptr, is_paused);
-    promise.set_value(Unit());
-  }
-
-  void toggle_all_is_paused(bool is_paused, Promise<Unit> promise) final {
-    TRY_STATUS_PROMISE(promise, check_is_active("toggle_all_is_paused"));
-
-    vector<FileId> to_toggle;
-    for (const auto &it : files_) {
-      const FileInfo &file_info = *it.second;
-      if (!is_completed(file_info) && is_paused != file_info.is_paused) {
-        to_toggle.push_back(file_info.file_id);
-      }
-    }
-    for (auto file_id : to_toggle) {
-      auto r_file_info_ptr = get_file_info_ptr(file_id);
-      if (r_file_info_ptr.is_ok()) {
-        toggle_is_paused(*r_file_info_ptr.ok(), is_paused);
-      }
-    }
-
-    promise.set_value(Unit());
-  }
-
-  void remove_file(FileId file_id, FileSourceId file_source_id, bool delete_from_cache, Promise<Unit> promise) final {
-    TRY_STATUS_PROMISE(promise, check_is_active("remove_file"));
-    TRY_RESULT_PROMISE(promise, file_info_ptr, get_file_info_ptr(file_id, file_source_id));
-    remove_file_impl(*file_info_ptr, delete_from_cache, "remove_file");
-    promise.set_value(Unit());
-  }
-
-  void remove_file_if_finished(FileId file_id) final {
-    remove_file_if_finished_impl(file_id).ignore();
-  }
-
-  void remove_all_files(bool only_active, bool only_completed, bool delete_from_cache, Promise<Unit> promise) final {
-    TRY_STATUS_PROMISE(promise, check_is_active("remove_all_files"));
-    vector<const FileInfo *> to_remove;
-    for (const auto &it : files_) {
-      const FileInfo &file_info = *it.second;
-      if (only_active && is_completed(file_info)) {
-        continue;
-      }
-      if (only_completed && !is_completed(file_info)) {
-        continue;
-      }
-      to_remove.push_back(&file_info);
-    }
-    for (auto file_info_ptr : to_remove) {
-      remove_file_impl(*file_info_ptr, delete_from_cache, "remove_all_files");
-    }
-    promise.set_value(Unit());
-  }
-
-  void add_file(FileId file_id, FileSourceId file_source_id, string search_text, int8 priority,
-                Promise<td_api::object_ptr<td_api::file>> promise) final {
-    TRY_STATUS_PROMISE(promise, check_is_active("add_file"));
-
-    auto old_file_info_ptr = get_file_info_ptr(file_id);
-    if (old_file_info_ptr.is_ok()) {
-      remove_file_impl(*old_file_info_ptr.ok(), false, "add_file");
-    }
-
-    auto download_id = next_download_id();
-
-    auto file_info = make_unique<FileInfo>();
-    file_info->download_id = download_id;
-    file_info->file_id = file_id;
-    file_info->file_source_id = file_source_id;
-    file_info->is_paused = false;
-    file_info->priority = priority;
-    file_info->created_at = G()->unix_time();
-    file_info->need_save_to_database = true;
-
-    add_file_info(std::move(file_info), search_text);
-
-    promise.set_value(callback_->get_file_object(file_id));
-  }
-
-  void change_search_text(FileId file_id, FileSourceId file_source_id, string search_text) final {
-    if (!is_search_inited_) {
-      return;
-    }
-
-    if (check_is_active("change_search_text").is_error()) {
-      return;
-    }
-    auto r_file_info_ptr = get_file_info_ptr(file_id, file_source_id);
-    if (r_file_info_ptr.is_error()) {
-      return;
-    }
-    auto &file_info = *r_file_info_ptr.ok();
-    hints_.add(file_info.download_id, search_text.empty() ? string(" ") : search_text);
-  }
-
-  void hints_synchronized(Result<Unit>) {
-    if (G()->close_flag()) {
-      return;
-    }
-
-    LOG(INFO) << "DownloadManager: hints are synchronized";
-    is_search_inited_ = true;
-  }
-
-  void search(string query, bool only_active, bool only_completed, string offset, int32 limit,
-              Promise<td_api::object_ptr<td_api::foundFileDownloads>> promise) final {
-    return do_search(std::move(query), only_active, only_completed, std::move(offset), limit, std::move(promise),
-                     Unit{});
-  }
-
-  void do_search(string query, bool only_active, bool only_completed, string offset, int32 limit,
-                 Promise<td_api::object_ptr<td_api::foundFileDownloads>> promise, Result<Unit>) {
-    TRY_STATUS_PROMISE(promise, G()->close_status());
-    TRY_STATUS_PROMISE(promise, check_is_active("do_search"));
-
-    if (!is_search_inited_) {
-      Promise<Unit> lock;
-      if (load_search_text_multipromise_.promise_count() == 0) {
-        load_search_text_multipromise_.add_promise(
-            promise_send_closure(actor_id(this), &DownloadManagerImpl::hints_synchronized));
-        load_search_text_multipromise_.set_ignore_errors(true);
-        lock = load_search_text_multipromise_.get_promise();
-        prepare_hints();
-      }
-      load_search_text_multipromise_.add_promise(promise_send_closure(actor_id(this), &DownloadManagerImpl::do_search,
-                                                                      std::move(query), only_active, only_completed,
-                                                                      std::move(offset), limit, std::move(promise)));
-      lock.set_value(Unit());
-      return;
-    }
-
-    if (limit <= 0) {
-      return promise.set_error(Status::Error(400, "Limit must be positive"));
-    }
-    int64 offset_int64 = std::numeric_limits<int64>::max();
-    if (!offset.empty()) {
-      auto r_offset = to_integer_safe<int64>(offset);
-      if (r_offset.is_error()) {
-        return promise.set_error(Status::Error(400, "Invalid offset"));
-      }
-      offset_int64 = r_offset.move_as_ok();
-    }
-    auto download_ids = hints_.search(query, 10000, true).second;
-    FileCounters counters;
-    td::remove_if(download_ids, [&](int64 download_id) {
-      auto r_file_info_ptr = get_file_info_ptr(download_id);
-      CHECK(r_file_info_ptr.is_ok());
-      auto &file_info = *r_file_info_ptr.ok();
-      if (is_completed(file_info)) {
-        counters.completed_count++;
-        if (only_active) {
-          return true;
-        }
-      } else {
-        counters.active_count++;
-        if (file_info.is_paused) {
-          counters.paused_count++;
-        }
-        if (only_completed) {
-          return true;
-        }
-      }
-      if (download_id >= offset_int64) {
-        return true;
-      }
-      return false;
-    });
-    std::sort(download_ids.begin(), download_ids.end(), std::greater<>());
-    if (static_cast<int32>(download_ids.size()) > limit) {
-      download_ids.resize(limit);
-    }
-    auto file_downloads = transform(download_ids, [&](int64 download_id) {
-      on_file_viewed(download_id);
-
-      auto it = files_.find(download_id);
-      CHECK(it != files_.end());
-      const FileInfo &file_info = *it->second;
-      return callback_->get_file_download_object(file_info.file_id, file_info.file_source_id, file_info.created_at,
-                                                 file_info.completed_at, file_info.is_paused);
-    });
-    td::remove_if(file_downloads, [](const auto &file_download) { return file_download->message_ == nullptr; });
-    string next_offset;
-    if (!download_ids.empty()) {
-      next_offset = to_string(download_ids.back());
-    }
-    promise.set_value(td_api::make_object<td_api::foundFileDownloads>(counters.get_downloaded_file_counts_object(),
-                                                                      std::move(file_downloads), next_offset));
-  }
-
-  void update_file_download_state(FileId file_id, int64 downloaded_size, int64 size, int64 expected_size,
-                                  bool is_paused) final {
-    if (!callback_ || !is_database_loaded_) {
-      return;
-    }
-    LOG(INFO) << "Update file download state for file " << file_id << " of size " << size << '/' << expected_size
-              << " to downloaded_size = " << downloaded_size << " and is_paused = " << is_paused;
-    auto r_file_info_ptr = get_file_info_ptr(file_id);
-    if (r_file_info_ptr.is_error()) {
-      return;
-    }
-    auto &file_info = *r_file_info_ptr.ok();
-    if (file_info.link_token != get_link_token()) {
-      LOG(INFO) << "Ignore update_file_download_state because of outdated link_token";
-      return;
-    }
-
-    bool need_update = false;
-    with_file_info(file_info, [&](FileInfo &file_info) {
-      file_info.size = size;
-      file_info.expected_size = expected_size;
-      file_info.downloaded_size = downloaded_size;
-      if (is_paused && file_info.is_paused != is_paused) {
-        file_info.is_paused = true;
-        file_info.need_save_to_database = true;
-        need_update = true;
-
-        // keep the state consistent
-        callback_->pause_file(file_info.file_id, file_info.internal_download_id);
-      }
-    });
-    if (is_search_inited_ && need_update) {
-      callback_->update_file_changed(file_info.file_id, file_info.completed_at, file_info.is_paused, file_counters_);
-    }
-  }
-
-  void update_file_viewed(FileId file_id, FileSourceId file_source_id) final {
-    if (unviewed_completed_download_ids_.empty() || !callback_ || !is_database_loaded_) {
-      return;
-    }
-
-    LOG(INFO) << "File " << file_id << " was viewed from " << file_source_id;
-    auto r_file_info_ptr = get_file_info_ptr(file_id, file_source_id);
-    if (r_file_info_ptr.is_error()) {
-      return;
-    }
-    auto &file_info = *r_file_info_ptr.ok();
-    on_file_viewed(file_info.download_id);
-  }
-
- private:
-  unique_ptr<Callback> callback_;
-  struct FileInfo {
-    int64 download_id{};
-    FileId file_id;
-    int64 internal_download_id{};
-    FileSourceId file_source_id;
-    int8 priority{};
-    bool is_paused{};
-    bool is_counted{};
-    mutable bool is_registered{};
-    mutable bool need_save_to_database{};
-    int64 size{};
-    int64 expected_size{};
-    int64 downloaded_size{};
-    int32 created_at{};
-    int32 completed_at{};
-    uint64 link_token{};
-  };
-
-  FlatHashMap<FileId, int64, FileIdHash> by_file_id_;
-  FlatHashMap<int64, unique_ptr<FileInfo>> files_;
-  std::set<int64> completed_download_ids_;
-  FlatHashSet<int64> unviewed_completed_download_ids_;
-  Hints hints_;
-
-  Counters counters_;
-  Counters sent_counters_;
-  FileCounters file_counters_;
-  const char *database_loading_source_ = nullptr;
-  bool is_inited_{false};
-  bool is_database_loaded_{false};
-  bool is_search_inited_{false};
-  int64 max_download_id_{0};
-  uint64 last_link_token_{0};
-  MultiPromiseActor load_search_text_multipromise_{"LoadFileSearchTextMultiPromiseActor"};
-
-  int64 next_download_id() {
-    return ++max_download_id_;
-  }
-
-  static bool is_completed(const FileInfo &file_info) {
-    return file_info.completed_at != 0;
-  }
-
-  static int64 get_file_size(const FileInfo &file_info) {
-    return file_info.size == 0 ? max(file_info.downloaded_size + 1, file_info.expected_size) : file_info.size;
-  }
-
-  static bool is_database_enabled() {
-    return G()->use_message_database();
-  }
-
-  static string pmc_key(const FileInfo &file_info) {
-    return PSTRING() << "dlds#" << file_info.download_id;
-  }
-
-  void sync_with_database(const FileInfo &file_info) {
-    if (!file_info.need_save_to_database) {
-      return;
-    }
-    file_info.need_save_to_database = false;
-
-    if (!is_database_enabled()) {
-      return;
-    }
-
-    LOG(INFO) << "Saving to download database file " << file_info.file_id
-              << " with is_paused = " << file_info.is_paused;
-    FileDownloadInDatabase to_save;
-    to_save.download_id = file_info.download_id;
-    to_save.file_source_id = file_info.file_source_id;
-    to_save.is_paused = file_info.is_paused;
-    to_save.priority = file_info.priority;
-    to_save.created_at = file_info.created_at;
-    to_save.completed_at = file_info.completed_at;
-    to_save.file_id = file_info.file_id;
-    G()->td_db()->get_binlog_pmc()->set(pmc_key(file_info), log_event_store(to_save).as_slice().str());
-  }
-
-  static void remove_from_database(const FileInfo &file_info) {
-    if (!is_database_enabled()) {
-      return;
-    }
-
-    G()->td_db()->get_binlog_pmc()->erase(pmc_key(file_info));
-  }
-
-  void init() {
-    if (is_inited_) {
-      return;
-    }
-
-    if (is_database_enabled()) {
-      auto serialized_counter = G()->td_db()->get_binlog_pmc()->get("dlds_counter");
-      if (!serialized_counter.empty()) {
-        log_event_parse(sent_counters_, serialized_counter).ensure();
-        if (sent_counters_.downloaded_size == sent_counters_.total_size || sent_counters_.total_size == 0) {
-          G()->td_db()->get_binlog_pmc()->erase("dlds_counter");
-          sent_counters_ = Counters();
-        }
-      }
-    } else if (!G()->td_db()->get_binlog_pmc()->get("dlds_counter").empty()) {
-      G()->td_db()->get_binlog_pmc()->erase("dlds_counter");
-      G()->td_db()->get_binlog_pmc()->erase_by_prefix("dlds#");
-    }
-
-    callback_->update_counters(sent_counters_);
-    is_inited_ = true;
-  }
-
-  void add_file_from_database(FileDownloadInDatabase in_db) {
-    if (!in_db.file_id.is_valid() || !in_db.file_source_id.is_valid()) {
-      LOG(INFO) << "Skip adding file " << in_db.file_id << " from " << in_db.file_source_id;
-      return;
-    }
-    if (by_file_id_.count(in_db.file_id) != 0) {
-      // file has already been added
-      return;
-    }
-    if (FileManager::check_priority(in_db.priority).is_error()) {
-      LOG(ERROR) << "Receive invalid download priority from database";
-      return;
-    }
-
-    auto file_info = make_unique<FileInfo>();
-    file_info->download_id = in_db.download_id;
-    file_info->file_id = in_db.file_id;
-    file_info->file_source_id = in_db.file_source_id;
-    file_info->is_paused = in_db.is_paused;
-    file_info->priority = narrow_cast<int8>(in_db.priority);
-    file_info->completed_at = in_db.completed_at;
-    file_info->created_at = in_db.created_at;
-
-    add_file_info(std::move(file_info), "");
-  }
-
-  void load_database_files(const char *source) {
-    if (is_database_loaded_) {
-      return;
-    }
-
-    if (!is_database_enabled()) {
-      is_database_loaded_ = true;
-      return;
-    }
-    CHECK(is_inited_);
-    LOG_CHECK(database_loading_source_ == nullptr) << database_loading_source_ << ' ' << source;
-    database_loading_source_ = source;
-
-    LOG(INFO) << "Start Download Manager database loading";
-
-    auto downloads_in_kv = G()->td_db()->get_binlog_pmc()->prefix_get("dlds#");
-    for (auto &it : downloads_in_kv) {
-      Slice key = it.first;
-      Slice value = it.second;
-      FileDownloadInDatabase in_db;
-      log_event_parse(in_db, value).ensure();
-      CHECK(in_db.download_id == to_integer_safe<int64>(key).ok());
-      max_download_id_ = max(in_db.download_id, max_download_id_);
-      add_file_from_database(in_db);
-    }
-
-    is_database_loaded_ = true;
-    database_loading_source_ = nullptr;
-    update_counters();
-    check_completed_downloads_size();
-
-    LOG(INFO) << "Finish Download Manager database loading";
-  }
-
-  void prepare_hints() {
-    for (const auto &it : files_) {
-      const auto &file_info = *it.second;
-      auto promise =
-          PromiseCreator::lambda([actor_id = actor_id(this), promise = load_search_text_multipromise_.get_promise(),
-                                  download_id = it.first](Result<string> r_search_text) mutable {
-            send_closure(actor_id, &DownloadManagerImpl::add_download_to_hints, download_id, std::move(r_search_text),
-                         std::move(promise));
-          });
-      callback_->get_file_search_text(file_info.file_id, file_info.file_source_id, std::move(promise));
-    }
-  }
-
-  void add_download_to_hints(int64 download_id, Result<string> r_search_text, Promise<Unit> promise) {
-    auto it = files_.find(download_id);
-    if (it == files_.end()) {
-      return promise.set_value(Unit());
-    }
-
-    if (r_search_text.is_error()) {
-      if (!G()->close_flag() && check_is_active("add_download_to_hints").is_ok()) {
-        remove_file_impl(*it->second, false, "add_download_to_hints");
-      }
-    } else {
-      auto search_text = r_search_text.move_as_ok();
-      // TODO: This is a race. Synchronous call would be better.
-      hints_.add(download_id, search_text.empty() ? string(" ") : search_text);
-    }
-    promise.set_value(Unit());
-  }
-
-  void add_file_info(unique_ptr<FileInfo> &&file_info, const string &search_text) {
-    CHECK(file_info != nullptr);
-    auto download_id = file_info->download_id;
-    file_info->internal_download_id = callback_->get_internal_download_id();
-    auto file_view = callback_->get_sync_file_view(file_info->file_id);
-    CHECK(!file_view.empty());
-    file_info->size = file_view.size();
-    file_info->expected_size = file_view.expected_size();
-    file_info->downloaded_size = file_view.local_total_size();
-    file_info->is_counted = !is_completed(*file_info);
-
-    if (file_info->completed_at > 0 && (file_info->size == 0 || file_info->downloaded_size != file_info->size)) {
-      LOG(INFO) << "Skip adding file " << file_info->file_id << " to recently downloaded files, because local size is "
-                << file_info->downloaded_size << " instead of expected " << file_info->size;
-      remove_from_database(*file_info);
-      return;
-    }
-
-    by_file_id_[file_info->file_id] = download_id;
-    hints_.add(download_id, search_text.empty() ? string(" ") : search_text);
-    file_info->link_token = ++last_link_token_;
-
-    LOG(INFO) << "Adding to downloads file " << file_info->file_id << " of size " << file_info->size << '/'
-              << file_info->expected_size << " with downloaded_size = " << file_info->downloaded_size
-              << " and is_paused = " << file_info->is_paused;
-    auto it = files_.emplace(download_id, std::move(file_info)).first;
-    bool was_completed = is_completed(*it->second);
-    register_file_info(*it->second);  // must be called before start_file, which can call update_file_download_state
-    if (is_completed(*it->second)) {
-      bool is_inserted = completed_download_ids_.insert(it->second->download_id).second;
-      CHECK(is_inserted == was_completed);
-    } else {
-      if (!it->second->is_paused) {
-        callback_->start_file(it->second->file_id, it->second->internal_download_id, it->second->priority,
-                              actor_shared(this, it->second->link_token));
-      }
-    }
-    if (is_search_inited_) {
-      callback_->update_file_added(it->second->file_id, it->second->file_source_id, it->second->created_at,
-                                   it->second->completed_at, it->second->is_paused, file_counters_);
-    }
-  }
-
-  void remove_file_impl(const FileInfo &file_info, bool delete_from_cache, const char *source) {
-    auto file_id = file_info.file_id;
-    LOG(INFO) << "Remove from downloads file " << file_id << " from " << source;
-    auto download_id = file_info.download_id;
-    if (!is_completed(file_info) && !file_info.is_paused) {
-      callback_->pause_file(file_info.file_id, file_info.internal_download_id);
-    }
-    unregister_file_info(file_info);
-    if (delete_from_cache) {
-      callback_->delete_file(file_info.file_id);
-    }
-    by_file_id_.erase(file_id);
-    hints_.remove(download_id);
-    completed_download_ids_.erase(download_id);
-
-    remove_from_database(file_info);
-    files_.erase(download_id);
-    if (is_search_inited_) {
-      callback_->update_file_removed(file_id, file_counters_);
-    }
-
-    update_counters();
-    on_file_viewed(download_id);
-  }
-
-  Status remove_file_if_finished_impl(FileId file_id) {
-    TRY_STATUS(check_is_active("remove_file_if_finished_impl"));
-    TRY_RESULT(file_info_ptr, get_file_info_ptr(file_id));
-    if (!is_completed(*file_info_ptr)) {
-      return Status::Error("File is active");
-    }
-    remove_file_impl(*file_info_ptr, false, "remove_file_if_finished_impl");
-    return Status::OK();
-  }
-
-  void timeout_expired() final {
-    clear_counters();
-  }
-
-  void clear_counters() {
-    if (!is_database_loaded_) {
-      return;
-    }
-    CHECK(counters_ == sent_counters_);
-    if (counters_.downloaded_size != counters_.total_size || counters_.total_size == 0) {
-      return;
-    }
-
-    for (auto &it : files_) {
-      if (is_completed(*it.second) || !it.second->is_paused) {
-        it.second->is_counted = false;
-      }
-    }
-    counters_ = Counters();
-    update_counters();
-  }
-
-  void tear_down() final {
-    callback_.reset();
-  }
-
-  void toggle_is_paused(const FileInfo &file_info, bool is_paused) {
-    if (is_completed(file_info) || is_paused == file_info.is_paused) {
-      return;
-    }
-    LOG(INFO) << "Change is_paused state of file " << file_info.file_id << " to " << is_paused;
-
-    with_file_info(file_info, [&](FileInfo &file_info) {
-      file_info.is_paused = is_paused;
-      file_info.need_save_to_database = true;
-      file_info.link_token = ++last_link_token_;
-    });
-    if (is_paused) {
-      callback_->pause_file(file_info.file_id, file_info.internal_download_id);
-    } else {
-      callback_->start_file(file_info.file_id, file_info.internal_download_id, file_info.priority,
-                            actor_shared(this, file_info.link_token));
-    }
-    if (is_search_inited_) {
-      callback_->update_file_changed(file_info.file_id, file_info.completed_at, file_info.is_paused, file_counters_);
-    }
-  }
-
-  void update_counters() {
-    if (!is_database_loaded_) {
-      return;
-    }
-    if (counters_ == sent_counters_) {
-      return;
-    }
-    CHECK(counters_.total_size >= 0);
-    CHECK(counters_.total_count >= 0);
-    CHECK(counters_.downloaded_size >= 0);
-    if ((counters_.downloaded_size == counters_.total_size && counters_.total_size != 0) || counters_ == Counters()) {
-      if (counters_.total_size != 0) {
-        constexpr double EMPTY_UPDATE_DELAY = 60.0;
-        set_timeout_in(EMPTY_UPDATE_DELAY);
-      } else {
-        cancel_timeout();
-      }
-      G()->td_db()->get_binlog_pmc()->erase("dlds_counter");
-    } else {
-      cancel_timeout();
-      G()->td_db()->get_binlog_pmc()->set("dlds_counter", log_event_store(counters_).as_slice().str());
-    }
-    sent_counters_ = counters_;
-    callback_->update_counters(counters_);
-  }
-
-  Result<const FileInfo *> get_file_info_ptr(FileId file_id, FileSourceId file_source_id = {}) {
-    auto it = by_file_id_.find(file_id);
-    if (it == by_file_id_.end()) {
-      return Status::Error(400, "Can't find file");
-    }
-    return get_file_info_ptr(it->second, file_source_id);
-  }
-
-  Result<const FileInfo *> get_file_info_ptr(int64 download_id, FileSourceId file_source_id = {}) {
-    auto it = files_.find(download_id);
-    if (it == files_.end()) {
-      return Status::Error(400, "Can't find file");
-    }
-    if (file_source_id.is_valid() && file_source_id != it->second->file_source_id) {
-      return Status::Error(400, "Can't find file with such source");
-    }
-    return it->second.get();
-  }
-
-  void unregister_file_info(const FileInfo &file_info) {
-    CHECK(file_info.is_registered);
-    file_info.is_registered = false;
-    if (file_info.is_counted && (is_completed(file_info) || !file_info.is_paused)) {
-      LOG(INFO) << "Unregister file " << file_info.file_id;
-      counters_.downloaded_size -= file_info.downloaded_size;
-      counters_.total_size -= get_file_size(file_info);
-      counters_.total_count--;
-    }
-    if (is_completed(file_info)) {
-      file_counters_.completed_count--;
-      CHECK(file_counters_.completed_count >= 0);
-    } else {
-      if (file_info.is_paused) {
-        file_counters_.paused_count--;
-        CHECK(file_counters_.paused_count >= 0);
-      }
-      file_counters_.active_count--;
-      CHECK(file_counters_.active_count >= file_counters_.paused_count);
-    }
-  }
-
-  void register_file_info(FileInfo &file_info) {
-    CHECK(!file_info.is_registered);
-    file_info.is_registered = true;
-    bool need_update = false;
-    if (!is_completed(file_info) && file_info.size != 0 && file_info.downloaded_size == file_info.size) {
-      LOG(INFO) << "Register file " << file_info.file_id;
-      file_info.is_paused = false;
-      file_info.completed_at = G()->unix_time();
-      file_info.need_save_to_database = true;
-
-      bool is_inserted = completed_download_ids_.insert(file_info.download_id).second;
-      CHECK(is_inserted);
-      if (file_info.is_counted) {
-        unviewed_completed_download_ids_.insert(file_info.download_id);
-      }
-
-      need_update = true;
-    }
-    if (file_info.is_counted && (is_completed(file_info) || !file_info.is_paused)) {
-      counters_.downloaded_size += file_info.downloaded_size;
-      counters_.total_size += get_file_size(file_info);
-      counters_.total_count++;
-    }
-    if (is_completed(file_info)) {
-      file_counters_.completed_count++;
-    } else {
-      if (file_info.is_paused) {
-        file_counters_.paused_count++;
-      }
-      file_counters_.active_count++;
-    }
-    if (is_search_inited_ && need_update) {
-      callback_->update_file_changed(file_info.file_id, file_info.completed_at, file_info.is_paused, file_counters_);
-    }
-    sync_with_database(file_info);
-    update_counters();
-    CHECK(file_info.is_registered);
-
-    check_completed_downloads_size();
-  }
-
-  void check_completed_downloads_size() {
-    if (!is_database_loaded_ || check_is_active("check_completed_downloads_size").is_error()) {
-      return;
-    }
-
-    constexpr size_t MAX_COMPLETED_DOWNLOADS = 200;
-    while (completed_download_ids_.size() > MAX_COMPLETED_DOWNLOADS) {
-      auto download_id = *completed_download_ids_.begin();
-      auto file_info_ptr = get_file_info_ptr(download_id).move_as_ok();
-      remove_file_impl(*file_info_ptr, false, "check_completed_downloads_size");
-    }
-  }
-
-  void on_file_viewed(int64 download_id) {
-    if (unviewed_completed_download_ids_.empty()) {
-      return;
-    }
-
-    LOG(INFO) << "Mark download " << download_id << " as viewed";
-    unviewed_completed_download_ids_.erase(download_id);
-    if (unviewed_completed_download_ids_.empty()) {
-      clear_counters();
-    }
-  }
-
-  template <class F>
-  void with_file_info(const FileInfo &const_file_info, F &&f) {
-    unregister_file_info(const_file_info);
-    auto &file_info = const_cast<FileInfo &>(const_file_info);
-    f(file_info);
-    register_file_info(file_info);
-  }
-
-  Status check_is_active(const char *source) {
-    if (!callback_) {
-      LOG(ERROR) << "DownloadManager is closed in " << source;
-      return Status::Error(500, "DownloadManager is closed");
-    }
-    CHECK(is_inited_);
-    load_database_files(source);
-    return Status::OK();
-  }
-};
-
-unique_ptr<DownloadManager> DownloadManager::create(unique_ptr<Callback> callback) {
-  return make_unique<DownloadManagerImpl>(std::move(callback));
-}
-
-td_api::object_ptr<td_api::updateFileDownloads> DownloadManager::Counters::get_update_file_downloads_object() const {
-  return td_api::make_object<td_api::updateFileDownloads>(total_size, total_count, downloaded_size);
-}
-
-td_api::object_ptr<td_api::downloadedFileCounts> DownloadManager::FileCounters::get_downloaded_file_counts_object()
-    const {
-  return td_api::make_object<td_api::downloadedFileCounts>(active_count, paused_count, completed_count);
-}
-
-template <class StorerT>
-void DownloadManager::Counters::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(total_size, storer);
-  td::store(total_count, storer);
-  td::store(downloaded_size, storer);
-}
-
-template <class ParserT>
-void DownloadManager::Counters::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(total_size, parser);
-  td::parse(total_count, parser);
-  td::parse(downloaded_size, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DownloadManager.h b/third-party/td/td/td/telegram/DownloadManager.h
deleted file mode 100644
index 0770dd5567..0000000000
--- a/third-party/td/td/td/telegram/DownloadManager.h
+++ /dev/null
@@ -1,113 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class DownloadManager : public Actor {
- public:
-  struct Counters {
-    int64 total_size{};
-    int32 total_count{};
-    int64 downloaded_size{};
-
-    bool operator==(const Counters &other) const {
-      return total_size == other.total_size && total_count == other.total_count &&
-             downloaded_size == other.downloaded_size;
-    }
-
-    td_api::object_ptr<td_api::updateFileDownloads> get_update_file_downloads_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct FileCounters {
-    int32 active_count{};
-    int32 paused_count{};
-    int32 completed_count{};
-
-    bool operator==(const FileCounters &other) const {
-      return active_count == other.active_count && paused_count == other.paused_count &&
-             completed_count == other.completed_count;
-    }
-
-    td_api::object_ptr<td_api::downloadedFileCounts> get_downloaded_file_counts_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  // Callback is needed to make DownloadManager testable
-  class Callback {
-   public:
-    virtual ~Callback() = default;
-    virtual void update_counters(Counters counters) = 0;
-    virtual void update_file_added(FileId file_id, FileSourceId file_source_id, int32 add_date, int32 complete_date,
-                                   bool is_paused, FileCounters counters) = 0;
-    virtual void update_file_changed(FileId file_id, int32 complete_date, bool is_paused, FileCounters counters) = 0;
-    virtual void update_file_removed(FileId file_id, FileCounters counters) = 0;
-    virtual int64 get_internal_download_id() = 0;
-    virtual void start_file(FileId file_id, int64 internal_download_id, int8 priority,
-                            ActorShared<DownloadManager> download_manager) = 0;
-    virtual void pause_file(FileId file_id, int64 internal_download_id) = 0;
-    virtual void delete_file(FileId file_id) = 0;
-
-    virtual void get_file_search_text(FileId file_id, FileSourceId file_source_id, Promise<string> &&promise) = 0;
-
-    virtual FileView get_sync_file_view(FileId file_id) = 0;
-    virtual td_api::object_ptr<td_api::file> get_file_object(FileId file_id) = 0;
-    virtual td_api::object_ptr<td_api::fileDownload> get_file_download_object(FileId file_id,
-                                                                              FileSourceId file_source_id,
-                                                                              int32 add_date, int32 complete_date,
-                                                                              bool is_paused) = 0;
-  };
-
-  static unique_ptr<DownloadManager> create(unique_ptr<Callback> callback);
-
-  //
-  // public interface for user
-  //
-  virtual void add_file(FileId file_id, FileSourceId file_source_id, string search_text, int8 priority,
-                        Promise<td_api::object_ptr<td_api::file>> promise) = 0;
-  virtual void toggle_is_paused(FileId file_id, bool is_paused, Promise<Unit> promise) = 0;
-  virtual void toggle_all_is_paused(bool is_paused, Promise<Unit> promise) = 0;
-  virtual void search(string query, bool only_active, bool only_completed, string offset, int32 limit,
-                      Promise<td_api::object_ptr<td_api::foundFileDownloads>> promise) = 0;
-  virtual void remove_file(FileId file_id, FileSourceId file_source_id, bool delete_from_cache,
-                           Promise<Unit> promise) = 0;
-  virtual void remove_all_files(bool only_active, bool only_completed, bool delete_from_cache,
-                                Promise<Unit> promise) = 0;
-
-  //
-  // private interface to handle all kinds of updates
-  //
-  virtual void after_get_difference() = 0;
-  virtual void change_search_text(FileId file_id, FileSourceId file_source_id, string search_text) = 0;
-  virtual void remove_file_if_finished(FileId file_id) = 0;
-  virtual void update_file_download_state(FileId file_id, int64 downloaded_size, int64 size, int64 expected_size,
-                                          bool is_paused) = 0;
-  virtual void update_file_viewed(FileId file_id, FileSourceId file_source_id) = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DownloadManagerCallback.cpp b/third-party/td/td/td/telegram/DownloadManagerCallback.cpp
deleted file mode 100644
index 760543091a..0000000000
--- a/third-party/td/td/td/telegram/DownloadManagerCallback.cpp
+++ /dev/null
@@ -1,126 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DownloadManagerCallback.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-void DownloadManagerCallback::update_counters(DownloadManager::Counters counters) {
-  if (!td_->auth_manager_->is_bot()) {
-    send_closure(td_->actor_id(td_), &Td::send_update, counters.get_update_file_downloads_object());
-  }
-}
-
-void DownloadManagerCallback::update_file_added(FileId file_id, FileSourceId file_source_id, int32 add_date,
-                                                int32 complete_date, bool is_paused,
-                                                DownloadManager::FileCounters counters) {
-  send_closure(td_->actor_id(td_), &Td::send_update,
-               td_api::make_object<td_api::updateFileAddedToDownloads>(
-                   get_file_download_object(file_id, file_source_id, add_date, complete_date, is_paused),
-                   counters.get_downloaded_file_counts_object()));
-}
-
-void DownloadManagerCallback::update_file_changed(FileId file_id, int32 complete_date, bool is_paused,
-                                                  DownloadManager::FileCounters counters) {
-  send_closure(td_->actor_id(td_), &Td::send_update,
-               td_api::make_object<td_api::updateFileDownload>(file_id.get(), complete_date, is_paused,
-                                                               counters.get_downloaded_file_counts_object()));
-}
-
-void DownloadManagerCallback::update_file_removed(FileId file_id, DownloadManager::FileCounters counters) {
-  send_closure(td_->actor_id(td_), &Td::send_update,
-               td_api::make_object<td_api::updateFileRemovedFromDownloads>(
-                   file_id.get(), counters.get_downloaded_file_counts_object()));
-}
-
-int64 DownloadManagerCallback::get_internal_download_id() {
-  return FileManager::get_internal_download_id();
-}
-
-void DownloadManagerCallback::start_file(FileId file_id, int64 internal_download_id, int8 priority,
-                                         ActorShared<DownloadManager> download_manager) {
-  send_closure_later(td_->file_manager_actor_, &FileManager::download, file_id, internal_download_id,
-                     make_download_file_callback(td_, std::move(download_manager)), priority, -1, -1,
-                     Promise<td_api::object_ptr<td_api::file>>());
-}
-
-void DownloadManagerCallback::pause_file(FileId file_id, int64 internal_download_id) {
-  send_closure_later(td_->file_manager_actor_, &FileManager::cancel_download, file_id, internal_download_id, false);
-}
-
-void DownloadManagerCallback::delete_file(FileId file_id) {
-  send_closure_later(td_->file_manager_actor_, &FileManager::delete_file, file_id, Promise<Unit>(),
-                     "download manager callback");
-}
-
-void DownloadManagerCallback::get_file_search_text(FileId file_id, FileSourceId file_source_id,
-                                                   Promise<string> &&promise) {
-  send_closure(td_->file_reference_manager_actor_, &FileReferenceManager::get_file_search_text, file_source_id,
-               get_file_view(file_id).get_unique_file_id(), std::move(promise));
-}
-
-FileView DownloadManagerCallback::get_file_view(FileId file_id) {
-  return td_->file_manager_->get_file_view(file_id);
-}
-
-FileView DownloadManagerCallback::get_sync_file_view(FileId file_id) {
-  td_->file_manager_->check_local_location(file_id, true);
-  return get_file_view(file_id);
-}
-
-td_api::object_ptr<td_api::file> DownloadManagerCallback::get_file_object(FileId file_id) {
-  return td_->file_manager_->get_file_object(file_id);
-}
-
-td_api::object_ptr<td_api::fileDownload> DownloadManagerCallback::get_file_download_object(
-    FileId file_id, FileSourceId file_source_id, int32 add_date, int32 complete_date, bool is_paused) {
-  return td_api::make_object<td_api::fileDownload>(td_->file_manager_->get_file_view(file_id).get_main_file_id().get(),
-                                                   td_->file_reference_manager_->get_message_object(file_source_id),
-                                                   add_date, complete_date, is_paused);
-}
-
-std::shared_ptr<FileManager::DownloadCallback> DownloadManagerCallback::make_download_file_callback(
-    Td *td, ActorShared<DownloadManager> download_manager) {
-  class Impl final : public FileManager::DownloadCallback {
-   public:
-    Impl(Td *td, ActorShared<DownloadManager> download_manager)
-        : td_(td), download_manager_(std::move(download_manager)) {
-    }
-    void on_progress(FileId file_id) final {
-      send_update(file_id, false);
-    }
-    void on_download_ok(FileId file_id) final {
-      send_update(file_id, false);
-    }
-    void on_download_error(FileId file_id, Status error) final {
-      send_update(file_id, true);
-    }
-
-   private:
-    Td *td_;
-    ActorShared<DownloadManager> download_manager_;
-
-    void send_update(FileId file_id, bool is_paused) const {
-      auto file_view = td_->file_manager_->get_file_view(file_id);
-      send_closure_later(download_manager_, &DownloadManager::update_file_download_state, file_id,
-                         file_view.local_total_size(), file_view.size(), file_view.expected_size(), is_paused);
-    }
-  };
-  return std::make_shared<Impl>(td, std::move(download_manager));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DownloadManagerCallback.h b/third-party/td/td/td/telegram/DownloadManagerCallback.h
deleted file mode 100644
index b4bd6d2823..0000000000
--- a/third-party/td/td/td/telegram/DownloadManagerCallback.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DownloadManager.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-#include <memory>
-
-namespace td {
-
-class Td;
-
-class DownloadManagerCallback final : public DownloadManager::Callback {
- public:
-  DownloadManagerCallback(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  }
-
-  void update_counters(DownloadManager::Counters counters) final;
-
-  void update_file_added(FileId file_id, FileSourceId file_source_id, int32 add_date, int32 complete_date,
-                         bool is_paused, DownloadManager::FileCounters counters) final;
-
-  void update_file_changed(FileId file_id, int32 complete_date, bool is_paused,
-                           DownloadManager::FileCounters counters) final;
-
-  void update_file_removed(FileId file_id, DownloadManager::FileCounters counters) final;
-
-  int64 get_internal_download_id() final;
-
-  void start_file(FileId file_id, int64 internal_download_id, int8 priority,
-                  ActorShared<DownloadManager> download_manager) final;
-
-  void pause_file(FileId file_id, int64 internal_download_id) final;
-
-  void delete_file(FileId file_id) final;
-
-  void get_file_search_text(FileId file_id, FileSourceId file_source_id, Promise<string> &&promise) final;
-
-  FileView get_sync_file_view(FileId file_id) final;
-
-  td_api::object_ptr<td_api::file> get_file_object(FileId file_id) final;
-
-  td_api::object_ptr<td_api::fileDownload> get_file_download_object(FileId file_id, FileSourceId file_source_id,
-                                                                    int32 add_date, int32 complete_date,
-                                                                    bool is_paused) final;
-
- private:
-  Td *td_;
-  ActorShared<> parent_;
-
-  FileView get_file_view(FileId file_id);
-
-  static std::shared_ptr<FileManager::DownloadCallback> make_download_file_callback(
-      Td *td, ActorShared<DownloadManager> download_manager);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DraftMessage.cpp b/third-party/td/td/td/telegram/DraftMessage.cpp
deleted file mode 100644
index 2e7455a03c..0000000000
--- a/third-party/td/td/td/telegram/DraftMessage.cpp
+++ /dev/null
@@ -1,563 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/DraftMessage.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageSelfDestructType.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class SaveDraftMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SaveDraftMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const unique_ptr<DraftMessage> &draft_message) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Can't update draft message because have no write access to " << dialog_id;
-      return on_error(Status::Error(400, "PEER_ID_INVALID"));
-    }
-
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::InputReplyTo> input_reply_to;
-    vector<telegram_api::object_ptr<telegram_api::MessageEntity>> input_message_entities;
-    telegram_api::object_ptr<telegram_api::InputMedia> media;
-    int64 message_effect_id = 0;
-    if (draft_message != nullptr) {
-      CHECK(!draft_message->is_local());
-      input_reply_to = draft_message->message_input_reply_to_.get_input_reply_to(td_, MessageId() /*TODO*/);
-      if (input_reply_to != nullptr) {
-        flags |= telegram_api::messages_saveDraft::REPLY_TO_MASK;
-      }
-      if (draft_message->input_message_text_.disable_web_page_preview) {
-        flags |= telegram_api::messages_saveDraft::NO_WEBPAGE_MASK;
-      } else if (draft_message->input_message_text_.show_above_text) {
-        flags |= telegram_api::messages_saveDraft::INVERT_MEDIA_MASK;
-      }
-      input_message_entities = get_input_message_entities(
-          td_->user_manager_.get(), draft_message->input_message_text_.text.entities, "SaveDraftMessageQuery");
-      if (!input_message_entities.empty()) {
-        flags |= telegram_api::messages_saveDraft::ENTITIES_MASK;
-      }
-      media = draft_message->input_message_text_.get_input_media_web_page();
-      if (media != nullptr) {
-        flags |= telegram_api::messages_saveDraft::MEDIA_MASK;
-      }
-      if (draft_message->message_effect_id_.is_valid()) {
-        flags |= telegram_api::messages_saveDraft::EFFECT_MASK;
-        message_effect_id = draft_message->message_effect_id_.get();
-      }
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_saveDraft(
-            flags, false /*ignored*/, false /*ignored*/, std::move(input_reply_to), std::move(input_peer),
-            draft_message == nullptr ? string() : draft_message->input_message_text_.text.text,
-            std::move(input_message_entities), std::move(media), message_effect_id),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_saveDraft>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Save draft failed"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "TOPIC_CLOSED") {
-      // when the draft is a reply to a message in a closed topic, server will not allow to save it
-      // with the error "TOPIC_CLOSED", but the draft will be kept locally
-      return promise_.set_value(Unit());
-    }
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SaveDraftMessageQuery") &&
-        status.message() != "PEER_ID_INVALID") {
-      LOG(ERROR) << "Receive error for SaveDraftMessageQuery: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetAllDraftsQuery final : public Td::ResultHandler {
- public:
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getAllDrafts()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getAllDrafts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetAllDraftsQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for GetAllDraftsQuery: " << status;
-    }
-    status.ignore();
-  }
-};
-
-class ClearAllDraftsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ClearAllDraftsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::messages_clearAllDrafts()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_clearAllDrafts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(INFO) << "Receive result for ClearAllDraftsQuery: " << result_ptr.ok();
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for ClearAllDraftsQuery: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DraftMessageContentVideoNote final : public DraftMessageContent {
- public:
-  string path_;
-  int32 duration_ = 0;
-  int32 length_ = 0;
-  MessageSelfDestructType ttl_;
-
-  DraftMessageContentVideoNote() = default;
-
-  DraftMessageContentVideoNote(string &&path, int32 duration, int32 length, MessageSelfDestructType ttl)
-      : path_(std::move(path)), duration_(duration), length_(length), ttl_(ttl) {
-  }
-
-  DraftMessageContentType get_type() const final {
-    return DraftMessageContentType::VideoNote;
-  }
-
-  td_api::object_ptr<td_api::InputMessageContent> get_draft_input_message_content_object() const final {
-    return td_api::make_object<td_api::inputMessageVideoNote>(td_api::make_object<td_api::inputFileLocal>(path_),
-                                                              nullptr, duration_, length_,
-                                                              ttl_.get_message_self_destruct_type_object());
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_path = !path_.empty();
-    bool has_duration = duration_ != 0;
-    bool has_length = length_ != 0;
-    bool has_ttl = ttl_.is_valid();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_path);
-    STORE_FLAG(has_duration);
-    STORE_FLAG(has_length);
-    STORE_FLAG(has_ttl);
-    END_STORE_FLAGS();
-    if (has_path) {
-      td::store(path_, storer);
-    }
-    if (has_duration) {
-      td::store(duration_, storer);
-    }
-    if (has_length) {
-      td::store(length_, storer);
-    }
-    if (has_ttl) {
-      td::store(ttl_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_path;
-    bool has_duration;
-    bool has_length;
-    bool has_ttl;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_path);
-    PARSE_FLAG(has_duration);
-    PARSE_FLAG(has_length);
-    PARSE_FLAG(has_ttl);
-    END_PARSE_FLAGS();
-    if (has_path) {
-      td::parse(path_, parser);
-    }
-    if (has_duration) {
-      td::parse(duration_, parser);
-    }
-    if (has_length) {
-      td::parse(length_, parser);
-    }
-    if (has_ttl) {
-      td::parse(ttl_, parser);
-    }
-  }
-};
-
-class DraftMessageContentVoiceNote final : public DraftMessageContent {
- public:
-  string path_;
-  int32 duration_ = 0;
-  string waveform_;
-  MessageSelfDestructType ttl_;
-
-  DraftMessageContentVoiceNote() = default;
-
-  DraftMessageContentVoiceNote(string &&path, int32 duration, string &&waveform, MessageSelfDestructType ttl)
-      : path_(std::move(path)), duration_(duration), waveform_(std::move(waveform)), ttl_(ttl) {
-  }
-
-  DraftMessageContentType get_type() const final {
-    return DraftMessageContentType::VoiceNote;
-  }
-
-  td_api::object_ptr<td_api::InputMessageContent> get_draft_input_message_content_object() const final {
-    return td_api::make_object<td_api::inputMessageVoiceNote>(td_api::make_object<td_api::inputFileLocal>(path_),
-                                                              duration_, waveform_, nullptr,
-                                                              ttl_.get_message_self_destruct_type_object());
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_path = !path_.empty();
-    bool has_duration = duration_ != 0;
-    bool has_waveform = !waveform_.empty();
-    bool has_ttl = ttl_.is_valid();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_path);
-    STORE_FLAG(has_duration);
-    STORE_FLAG(has_waveform);
-    STORE_FLAG(has_ttl);
-    END_STORE_FLAGS();
-    if (has_path) {
-      td::store(path_, storer);
-    }
-    if (has_duration) {
-      td::store(duration_, storer);
-    }
-    if (has_waveform) {
-      td::store(waveform_, storer);
-    }
-    if (has_ttl) {
-      td::store(ttl_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_path;
-    bool has_duration;
-    bool has_waveform;
-    bool has_ttl;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_path);
-    PARSE_FLAG(has_duration);
-    PARSE_FLAG(has_waveform);
-    PARSE_FLAG(has_ttl);
-    END_PARSE_FLAGS();
-    if (has_path) {
-      td::parse(path_, parser);
-    }
-    if (has_duration) {
-      td::parse(duration_, parser);
-    }
-    if (has_waveform) {
-      td::parse(waveform_, parser);
-    }
-    if (has_ttl) {
-      td::parse(ttl_, parser);
-    }
-  }
-};
-
-template <class StorerT>
-static void store(const DraftMessageContent *content, StorerT &storer) {
-  CHECK(content != nullptr);
-
-  auto content_type = content->get_type();
-  store(content_type, storer);
-
-  switch (content_type) {
-    case DraftMessageContentType::VideoNote: {
-      const auto *video_note = static_cast<const DraftMessageContentVideoNote *>(content);
-      video_note->store(storer);
-      break;
-    }
-    case DraftMessageContentType::VoiceNote: {
-      const auto *voice_note = static_cast<const DraftMessageContentVoiceNote *>(content);
-      voice_note->store(storer);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void store_draft_message_content(const DraftMessageContent *content, LogEventStorerCalcLength &storer) {
-  store(content, storer);
-}
-
-void store_draft_message_content(const DraftMessageContent *content, LogEventStorerUnsafe &storer) {
-  store(content, storer);
-}
-
-void parse_draft_message_content(unique_ptr<DraftMessageContent> &content, LogEventParser &parser) {
-  DraftMessageContentType type;
-  parse(type, parser);
-  switch (type) {
-    case DraftMessageContentType::VideoNote: {
-      unique_ptr<DraftMessageContentVideoNote> video_note;
-      parse(video_note, parser);
-      content = std::move(video_note);
-      break;
-    }
-    case DraftMessageContentType::VoiceNote: {
-      unique_ptr<DraftMessageContentVoiceNote> voice_note;
-      parse(voice_note, parser);
-      content = std::move(voice_note);
-      break;
-    }
-    default:
-      parser.set_error("Wrong draft content type");
-  }
-}
-
-DraftMessage::DraftMessage() = default;
-
-DraftMessage::~DraftMessage() = default;
-
-bool DraftMessage::need_clear_local(MessageContentType content_type) const {
-  if (!is_local()) {
-    return false;
-  }
-  switch (local_content_->get_type()) {
-    case DraftMessageContentType::VideoNote:
-      return content_type == MessageContentType::VideoNote;
-    case DraftMessageContentType::VoiceNote:
-      return content_type == MessageContentType::VoiceNote;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool DraftMessage::need_update_to(const DraftMessage &other, bool from_update) const {
-  if (is_local()) {
-    return !from_update || other.is_local();
-  }
-  if (message_input_reply_to_ == other.message_input_reply_to_ && input_message_text_ == other.input_message_text_ &&
-      message_effect_id_ == other.message_effect_id_) {
-    return date_ < other.date_;
-  } else {
-    return !from_update || date_ <= other.date_;
-  }
-}
-
-void DraftMessage::add_dependencies(Dependencies &dependencies) const {
-  message_input_reply_to_.add_dependencies(dependencies);
-  input_message_text_.add_dependencies(dependencies);
-}
-
-td_api::object_ptr<td_api::draftMessage> DraftMessage::get_draft_message_object(Td *td) const {
-  td_api::object_ptr<td_api::InputMessageContent> input_message_content;
-  if (local_content_ != nullptr) {
-    input_message_content = local_content_->get_draft_input_message_content_object();
-  } else {
-    input_message_content = input_message_text_.get_input_message_text_object(td->user_manager_.get());
-  }
-  return td_api::make_object<td_api::draftMessage>(message_input_reply_to_.get_input_message_reply_to_object(td), date_,
-                                                   std::move(input_message_content), message_effect_id_.get());
-}
-
-DraftMessage::DraftMessage(Td *td, telegram_api::object_ptr<telegram_api::draftMessage> &&draft_message) {
-  CHECK(draft_message != nullptr);
-  date_ = draft_message->date_;
-  message_input_reply_to_ = MessageInputReplyTo(td, std::move(draft_message->reply_to_));
-  auto draft_text = get_formatted_text(td->user_manager_.get(), std::move(draft_message->message_),
-                                       std::move(draft_message->entities_), true, true, "DraftMessage");
-  string web_page_url;
-  bool force_small_media = false;
-  bool force_large_media = false;
-  if (draft_message->media_ != nullptr) {
-    if (draft_message->media_->get_id() != telegram_api::inputMediaWebPage::ID) {
-      LOG(ERROR) << "Receive draft message with " << to_string(draft_message->media_);
-    } else {
-      auto media = telegram_api::move_object_as<telegram_api::inputMediaWebPage>(draft_message->media_);
-      web_page_url = std::move(media->url_);
-      if (web_page_url.empty()) {
-        LOG(ERROR) << "Have no URL in a draft with manual link preview";
-      }
-      force_small_media = media->force_small_media_;
-      force_large_media = media->force_large_media_;
-    }
-  }
-  input_message_text_ = InputMessageText(std::move(draft_text), std::move(web_page_url), draft_message->no_webpage_,
-                                         force_small_media, force_large_media, draft_message->invert_media_, false);
-  message_effect_id_ = MessageEffectId(draft_message->effect_);
-}
-
-Result<unique_ptr<DraftMessage>> DraftMessage::get_draft_message(
-    Td *td, DialogId dialog_id, MessageId top_thread_message_id,
-    td_api::object_ptr<td_api::draftMessage> &&draft_message) {
-  if (draft_message == nullptr) {
-    return nullptr;
-  }
-
-  auto result = make_unique<DraftMessage>();
-  result->message_input_reply_to_ = td->messages_manager_->create_message_input_reply_to(
-      dialog_id, top_thread_message_id, std::move(draft_message->reply_to_), true);
-  result->message_effect_id_ = MessageEffectId(draft_message->effect_id_);
-
-  auto input_message_content = std::move(draft_message->input_message_text_);
-  if (input_message_content != nullptr) {
-    switch (input_message_content->get_id()) {
-      case td_api::inputMessageText::ID: {
-        TRY_RESULT(input_message_text,
-                   process_input_message_text(td, dialog_id, std::move(input_message_content), false, true));
-        result->input_message_text_ = std::move(input_message_text);
-        break;
-      }
-      case td_api::inputMessageVideoNote::ID: {
-        auto video_note = td_api::move_object_as<td_api::inputMessageVideoNote>(input_message_content);
-        if (video_note->video_note_ == nullptr || video_note->video_note_->get_id() != td_api::inputFileLocal::ID) {
-          return Status::Error(400, "Invalid video message file specified");
-        }
-        TRY_RESULT(ttl,
-                   MessageSelfDestructType::get_message_self_destruct_type(std::move(video_note->self_destruct_type_)));
-        result->local_content_ = td::make_unique<DraftMessageContentVideoNote>(
-            std::move(static_cast<td_api::inputFileLocal *>(video_note->video_note_.get())->path_),
-            video_note->duration_, video_note->length_, ttl);
-        break;
-      }
-      case td_api::inputMessageVoiceNote::ID: {
-        auto voice_note = td_api::move_object_as<td_api::inputMessageVoiceNote>(input_message_content);
-        if (voice_note->voice_note_ == nullptr || voice_note->voice_note_->get_id() != td_api::inputFileLocal::ID) {
-          return Status::Error(400, "Invalid voice message file specified");
-        }
-        TRY_RESULT(ttl,
-                   MessageSelfDestructType::get_message_self_destruct_type(std::move(voice_note->self_destruct_type_)));
-        result->local_content_ = td::make_unique<DraftMessageContentVoiceNote>(
-            std::move(static_cast<td_api::inputFileLocal *>(voice_note->voice_note_.get())->path_),
-            voice_note->duration_, std::move(voice_note->waveform_), ttl);
-        break;
-      }
-      default:
-        return Status::Error(400, "Input message content type must be InputMessageText");
-    }
-  }
-
-  if (!result->message_input_reply_to_.is_valid() && result->input_message_text_.is_empty() &&
-      result->local_content_ == nullptr) {
-    return nullptr;
-  }
-
-  result->date_ = G()->unix_time();
-  return std::move(result);
-}
-
-bool is_local_draft_message(const unique_ptr<DraftMessage> &draft_message) {
-  if (draft_message == nullptr) {
-    return false;
-  }
-  return draft_message->is_local();
-}
-
-bool need_update_draft_message(const unique_ptr<DraftMessage> &old_draft_message,
-                               const unique_ptr<DraftMessage> &new_draft_message, bool from_update) {
-  if (new_draft_message == nullptr) {
-    return old_draft_message != nullptr;
-  }
-  if (old_draft_message == nullptr) {
-    return true;
-  }
-  return old_draft_message->need_update_to(*new_draft_message, from_update);
-}
-
-void add_draft_message_dependencies(Dependencies &dependencies, const unique_ptr<DraftMessage> &draft_message) {
-  if (draft_message == nullptr) {
-    return;
-  }
-  draft_message->add_dependencies(dependencies);
-}
-
-td_api::object_ptr<td_api::draftMessage> get_draft_message_object(Td *td,
-                                                                  const unique_ptr<DraftMessage> &draft_message) {
-  if (draft_message == nullptr) {
-    return nullptr;
-  }
-  return draft_message->get_draft_message_object(td);
-}
-
-unique_ptr<DraftMessage> get_draft_message(Td *td,
-                                           telegram_api::object_ptr<telegram_api::DraftMessage> &&draft_message_ptr) {
-  if (draft_message_ptr == nullptr) {
-    return nullptr;
-  }
-  switch (draft_message_ptr->get_id()) {
-    case telegram_api::draftMessageEmpty::ID:
-      return nullptr;
-    case telegram_api::draftMessage::ID:
-      return td::make_unique<DraftMessage>(td,
-                                           telegram_api::move_object_as<telegram_api::draftMessage>(draft_message_ptr));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-void save_draft_message(Td *td, DialogId dialog_id, const unique_ptr<DraftMessage> &draft_message,
-                        Promise<Unit> &&promise) {
-  td->create_handler<SaveDraftMessageQuery>(std::move(promise))->send(dialog_id, draft_message);
-}
-
-void load_all_draft_messages(Td *td) {
-  td->create_handler<GetAllDraftsQuery>()->send();
-}
-
-void clear_all_draft_messages(Td *td, Promise<Unit> &&promise) {
-  td->create_handler<ClearAllDraftsQuery>(std::move(promise))->send();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DraftMessage.h b/third-party/td/td/td/telegram/DraftMessage.h
deleted file mode 100644
index 0916832730..0000000000
--- a/third-party/td/td/td/telegram/DraftMessage.h
+++ /dev/null
@@ -1,115 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/InputMessageText.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageEffectId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageInputReplyTo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-enum class DraftMessageContentType : int32 { VideoNote, VoiceNote };
-
-class DraftMessageContent {
- public:
-  DraftMessageContent() = default;
-  DraftMessageContent(const DraftMessageContent &) = default;
-  DraftMessageContent &operator=(const DraftMessageContent &) = default;
-  DraftMessageContent(DraftMessageContent &&) = default;
-  DraftMessageContent &operator=(DraftMessageContent &&) = default;
-
-  virtual DraftMessageContentType get_type() const = 0;
-
-  virtual td_api::object_ptr<td_api::InputMessageContent> get_draft_input_message_content_object() const = 0;
-
-  virtual ~DraftMessageContent() = default;
-};
-
-class DraftMessage {
-  int32 date_ = 0;
-  MessageInputReplyTo message_input_reply_to_;
-  InputMessageText input_message_text_;
-  unique_ptr<DraftMessageContent> local_content_;
-  MessageEffectId message_effect_id_;
-
-  friend class SaveDraftMessageQuery;
-
- public:
-  DraftMessage();
-  DraftMessage(Td *td, telegram_api::object_ptr<telegram_api::draftMessage> &&draft_message);
-  DraftMessage(const DraftMessage &) = delete;
-  DraftMessage &operator=(const DraftMessage &) = delete;
-  DraftMessage(DraftMessage &&) = delete;
-  DraftMessage &operator=(DraftMessage &&) = delete;
-  ~DraftMessage();
-
-  int32 get_date() const {
-    return date_;
-  }
-
-  bool is_local() const {
-    return local_content_ != nullptr;
-  }
-
-  bool need_clear_local(MessageContentType content_type) const;
-
-  bool need_update_to(const DraftMessage &other, bool from_update) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  td_api::object_ptr<td_api::draftMessage> get_draft_message_object(Td *td) const;
-
-  static Result<unique_ptr<DraftMessage>> get_draft_message(Td *td, DialogId dialog_id, MessageId top_thread_message_id,
-                                                            td_api::object_ptr<td_api::draftMessage> &&draft_message);
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-void store_draft_message_content(const DraftMessageContent *content, LogEventStorerCalcLength &storer);
-
-void store_draft_message_content(const DraftMessageContent *content, LogEventStorerUnsafe &storer);
-
-void parse_draft_message_content(unique_ptr<DraftMessageContent> &content, LogEventParser &parser);
-
-bool is_local_draft_message(const unique_ptr<DraftMessage> &draft_message);
-
-bool need_update_draft_message(const unique_ptr<DraftMessage> &old_draft_message,
-                               const unique_ptr<DraftMessage> &new_draft_message, bool from_update);
-
-void add_draft_message_dependencies(Dependencies &dependencies, const unique_ptr<DraftMessage> &draft_message);
-
-td_api::object_ptr<td_api::draftMessage> get_draft_message_object(Td *td,
-                                                                  const unique_ptr<DraftMessage> &draft_message);
-
-unique_ptr<DraftMessage> get_draft_message(Td *td,
-                                           telegram_api::object_ptr<telegram_api::DraftMessage> &&draft_message_ptr);
-
-void save_draft_message(Td *td, DialogId dialog_id, const unique_ptr<DraftMessage> &draft_message,
-                        Promise<Unit> &&promise);
-
-void load_all_draft_messages(Td *td);
-
-void clear_all_draft_messages(Td *td, Promise<Unit> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/DraftMessage.hpp b/third-party/td/td/td/telegram/DraftMessage.hpp
deleted file mode 100644
index 038bee2008..0000000000
--- a/third-party/td/td/td/telegram/DraftMessage.hpp
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DraftMessage.h"
-
-#include "td/telegram/InputMessageText.hpp"
-#include "td/telegram/MessageInputReplyTo.hpp"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void DraftMessage::store(StorerT &storer) const {
-  bool has_input_message_text = !input_message_text_.is_empty();
-  bool has_message_input_reply_to = !message_input_reply_to_.is_empty();
-  bool has_local_content = local_content_ != nullptr;
-  bool has_message_effect_id = message_effect_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_input_message_text);
-  STORE_FLAG(has_message_input_reply_to);
-  STORE_FLAG(has_local_content);
-  STORE_FLAG(has_message_effect_id);
-  END_STORE_FLAGS();
-  td::store(date_, storer);
-  if (has_input_message_text) {
-    td::store(input_message_text_, storer);
-  }
-  if (has_message_input_reply_to) {
-    td::store(message_input_reply_to_, storer);
-  }
-  if (has_local_content) {
-    store_draft_message_content(local_content_.get(), storer);
-  }
-  if (has_message_effect_id) {
-    td::store(message_effect_id_, storer);
-  }
-}
-
-template <class ParserT>
-void DraftMessage::parse(ParserT &parser) {
-  bool has_legacy_reply_to_message_id;
-  bool has_input_message_text;
-  bool has_message_input_reply_to = false;
-  bool has_local_content = false;
-  bool has_message_effect_id = false;
-  if (parser.version() >= static_cast<int32>(Version::SupportRepliesInOtherChats)) {
-    has_legacy_reply_to_message_id = false;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_input_message_text);
-    PARSE_FLAG(has_message_input_reply_to);
-    PARSE_FLAG(has_local_content);
-    PARSE_FLAG(has_message_effect_id);
-    END_PARSE_FLAGS();
-  } else {
-    has_legacy_reply_to_message_id = true;
-    has_input_message_text = true;
-  }
-  td::parse(date_, parser);
-  if (has_legacy_reply_to_message_id) {
-    MessageId legacy_reply_to_message_id;
-    td::parse(legacy_reply_to_message_id, parser);
-    message_input_reply_to_ = MessageInputReplyTo{legacy_reply_to_message_id, DialogId(), MessageQuote()};
-  }
-  if (has_input_message_text) {
-    td::parse(input_message_text_, parser);
-  }
-  if (has_message_input_reply_to) {
-    td::parse(message_input_reply_to_, parser);
-  }
-  if (has_local_content) {
-    parse_draft_message_content(local_content_, parser);
-  }
-  if (has_message_effect_id) {
-    td::parse(message_effect_id_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmailVerification.cpp b/third-party/td/td/td/telegram/EmailVerification.cpp
deleted file mode 100644
index 96aff0dde5..0000000000
--- a/third-party/td/td/td/telegram/EmailVerification.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/EmailVerification.h"
-
-#include "td/telegram/misc.h"
-
-namespace td {
-
-EmailVerification::EmailVerification(td_api::object_ptr<td_api::EmailAddressAuthentication> &&code) {
-  if (code == nullptr) {
-    return;
-  }
-  switch (code->get_id()) {
-    case td_api::emailAddressAuthenticationCode::ID:
-      type_ = Type::Code;
-      code_ = static_cast<const td_api::emailAddressAuthenticationCode *>(code.get())->code_;
-      break;
-    case td_api::emailAddressAuthenticationAppleId::ID:
-      type_ = Type::Apple;
-      code_ = static_cast<const td_api::emailAddressAuthenticationAppleId *>(code.get())->token_;
-      break;
-    case td_api::emailAddressAuthenticationGoogleId::ID:
-      type_ = Type::Google;
-      code_ = static_cast<const td_api::emailAddressAuthenticationGoogleId *>(code.get())->token_;
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  if (!clean_input_string(code_)) {
-    *this = {};
-  }
-}
-
-telegram_api::object_ptr<telegram_api::EmailVerification> EmailVerification::get_input_email_verification() const {
-  switch (type_) {
-    case Type::Code:
-      return telegram_api::make_object<telegram_api::emailVerificationCode>(code_);
-    case Type::Apple:
-      return telegram_api::make_object<telegram_api::emailVerificationApple>(code_);
-    case Type::Google:
-      return telegram_api::make_object<telegram_api::emailVerificationGoogle>(code_);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmailVerification.h b/third-party/td/td/td/telegram/EmailVerification.h
deleted file mode 100644
index a42557b612..0000000000
--- a/third-party/td/td/td/telegram/EmailVerification.h
+++ /dev/null
@@ -1,37 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class EmailVerification {
-  enum class Type : int32 { None, Code, Apple, Google };
-  Type type_ = Type::None;
-  string code_;
-
- public:
-  EmailVerification() = default;
-
-  explicit EmailVerification(td_api::object_ptr<td_api::EmailAddressAuthentication> &&code);
-
-  telegram_api::object_ptr<telegram_api::EmailVerification> get_input_email_verification() const;
-
-  bool is_empty() const {
-    return type_ == Type::None;
-  }
-
-  bool is_email_code() const {
-    return type_ == Type::Code;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmojiGroup.cpp b/third-party/td/td/td/telegram/EmojiGroup.cpp
deleted file mode 100644
index 804d269ba8..0000000000
--- a/third-party/td/td/td/telegram/EmojiGroup.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/EmojiGroup.h"
-
-#include "td/telegram/StickersManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-EmojiGroup::EmojiGroup(telegram_api::object_ptr<telegram_api::EmojiGroup> &&emoji_group_ptr) {
-  switch (emoji_group_ptr->get_id()) {
-    case telegram_api::emojiGroup::ID: {
-      auto emoji_group = telegram_api::move_object_as<telegram_api::emojiGroup>(emoji_group_ptr);
-      title_ = std::move(emoji_group->title_);
-      icon_custom_emoji_id_ = CustomEmojiId(emoji_group->icon_emoji_id_);
-      emojis_ = std::move(emoji_group->emoticons_);
-      break;
-    }
-    case telegram_api::emojiGroupGreeting::ID: {
-      auto emoji_group = telegram_api::move_object_as<telegram_api::emojiGroupGreeting>(emoji_group_ptr);
-      title_ = std::move(emoji_group->title_);
-      icon_custom_emoji_id_ = CustomEmojiId(emoji_group->icon_emoji_id_);
-      emojis_ = std::move(emoji_group->emoticons_);
-      is_greeting_ = true;
-      break;
-    }
-    case telegram_api::emojiGroupPremium::ID: {
-      auto emoji_group = telegram_api::move_object_as<telegram_api::emojiGroupPremium>(emoji_group_ptr);
-      title_ = std::move(emoji_group->title_);
-      icon_custom_emoji_id_ = CustomEmojiId(emoji_group->icon_emoji_id_);
-      is_premium_ = true;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-td_api::object_ptr<td_api::emojiCategory> EmojiGroup::get_emoji_category_object(
-    StickersManager *stickers_manager) const {
-  auto source = [&]() -> td_api::object_ptr<td_api::EmojiCategorySource> {
-    if (is_premium_) {
-      return td_api::make_object<td_api::emojiCategorySourcePremium>();
-    }
-    return td_api::make_object<td_api::emojiCategorySourceSearch>(vector<string>(emojis_));
-  }();
-  return td_api::make_object<td_api::emojiCategory>(
-      title_, stickers_manager->get_custom_emoji_sticker_object(icon_custom_emoji_id_), std::move(source),
-      is_greeting_);
-}
-
-EmojiGroupList::EmojiGroupList(string used_language_codes, int32 hash,
-                               vector<telegram_api::object_ptr<telegram_api::EmojiGroup>> &&emoji_groups)
-    : used_language_codes_(std::move(used_language_codes))
-    , hash_(hash)
-    , emoji_groups_(transform(std::move(emoji_groups),
-                              [](telegram_api::object_ptr<telegram_api::EmojiGroup> &&emoji_group) {
-                                return EmojiGroup(std::move(emoji_group));
-                              }))
-    , next_reload_time_(Time::now() + 3600) {
-}
-
-td_api::object_ptr<td_api::emojiCategories> EmojiGroupList::get_emoji_categories_object(
-    StickersManager *stickers_manager) const {
-  auto emoji_categories = transform(emoji_groups_, [stickers_manager](const EmojiGroup &emoji_group) {
-    return emoji_group.get_emoji_category_object(stickers_manager);
-  });
-  td::remove_if(emoji_categories, [](const td_api::object_ptr<td_api::emojiCategory> &emoji_category) {
-    if (emoji_category->icon_ == nullptr) {
-      LOG(ERROR) << "Failed to get icon for emoji category " << emoji_category->name_;
-      return true;
-    }
-    return false;
-  });
-  return td_api::make_object<td_api::emojiCategories>(std::move(emoji_categories));
-}
-
-bool EmojiGroupList::is_expired() const {
-  return next_reload_time_ < Time::now();
-}
-
-void EmojiGroupList::update_next_reload_time() {
-  next_reload_time_ = Time::now() + 3600;
-}
-
-vector<CustomEmojiId> EmojiGroupList::get_icon_custom_emoji_ids() const {
-  return transform(emoji_groups_, [](const EmojiGroup &emoji_group) { return emoji_group.get_icon_custom_emoji_id(); });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmojiGroup.h b/third-party/td/td/td/telegram/EmojiGroup.h
deleted file mode 100644
index 193e9e7359..0000000000
--- a/third-party/td/td/td/telegram/EmojiGroup.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class StickersManager;
-
-class EmojiGroup {
-  string title_;
-  CustomEmojiId icon_custom_emoji_id_;
-  vector<string> emojis_;
-  bool is_greeting_ = false;
-  bool is_premium_ = false;
-
- public:
-  EmojiGroup() = default;
-
-  explicit EmojiGroup(telegram_api::object_ptr<telegram_api::EmojiGroup> &&emoji_group);
-
-  td_api::object_ptr<td_api::emojiCategory> get_emoji_category_object(StickersManager *stickers_manager) const;
-
-  CustomEmojiId get_icon_custom_emoji_id() const {
-    return icon_custom_emoji_id_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-class EmojiGroupList {
-  string used_language_codes_;
-  int32 hash_ = 0;
-  vector<EmojiGroup> emoji_groups_;
-  double next_reload_time_ = 0.0;
-
- public:
-  EmojiGroupList() = default;
-
-  EmojiGroupList(string used_language_codes, int32 hash,
-                 vector<telegram_api::object_ptr<telegram_api::EmojiGroup>> &&emoji_groups);
-
-  td_api::object_ptr<td_api::emojiCategories> get_emoji_categories_object(StickersManager *stickers_manager) const;
-
-  const string &get_used_language_codes() const {
-    return used_language_codes_;
-  }
-
-  int32 get_hash() const {
-    return hash_;
-  }
-
-  bool is_expired() const;
-
-  void update_next_reload_time();
-
-  vector<CustomEmojiId> get_icon_custom_emoji_ids() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmojiGroup.hpp b/third-party/td/td/td/telegram/EmojiGroup.hpp
deleted file mode 100644
index 2a49f132fd..0000000000
--- a/third-party/td/td/td/telegram/EmojiGroup.hpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/EmojiGroup.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void EmojiGroup::store(StorerT &storer) const {
-  bool has_emojis = !emojis_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_greeting_);
-  STORE_FLAG(is_premium_);
-  STORE_FLAG(has_emojis);
-  END_STORE_FLAGS();
-  td::store(title_, storer);
-  td::store(icon_custom_emoji_id_, storer);
-  if (has_emojis) {
-    td::store(emojis_, storer);
-  }
-}
-
-template <class ParserT>
-void EmojiGroup::parse(ParserT &parser) {
-  bool has_emojis;
-  if (parser.version() >= static_cast<int32>(Version::SupportMoreEmojiGroups)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_greeting_);
-    PARSE_FLAG(is_premium_);
-    PARSE_FLAG(has_emojis);
-    END_PARSE_FLAGS();
-  } else {
-    has_emojis = true;
-  }
-  td::parse(title_, parser);
-  td::parse(icon_custom_emoji_id_, parser);
-  if (has_emojis) {
-    td::parse(emojis_, parser);
-  }
-}
-
-template <class StorerT>
-void EmojiGroupList::store(StorerT &storer) const {
-  td::store(used_language_codes_, storer);
-  td::store(hash_, storer);
-  td::store(emoji_groups_, storer);
-}
-
-template <class ParserT>
-void EmojiGroupList::parse(ParserT &parser) {
-  td::parse(used_language_codes_, parser);
-  td::parse(hash_, parser);
-  td::parse(emoji_groups_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmojiGroupType.cpp b/third-party/td/td/td/telegram/EmojiGroupType.cpp
deleted file mode 100644
index 5ec1d8d117..0000000000
--- a/third-party/td/td/td/telegram/EmojiGroupType.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/EmojiGroupType.h"
-
-namespace td {
-
-EmojiGroupType get_emoji_group_type(const td_api::object_ptr<td_api::EmojiCategoryType> &type) {
-  if (type == nullptr) {
-    return EmojiGroupType::Default;
-  }
-  switch (type->get_id()) {
-    case td_api::emojiCategoryTypeDefault::ID:
-      return EmojiGroupType::Default;
-    case td_api::emojiCategoryTypeEmojiStatus::ID:
-      return EmojiGroupType::EmojiStatus;
-    case td_api::emojiCategoryTypeChatPhoto::ID:
-      return EmojiGroupType::ProfilePhoto;
-    case td_api::emojiCategoryTypeRegularStickers::ID:
-      return EmojiGroupType::RegularStickers;
-    default:
-      UNREACHABLE();
-      return EmojiGroupType::Default;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, EmojiGroupType emoji_group_type) {
-  switch (emoji_group_type) {
-    case EmojiGroupType::Default:
-      return string_builder << "Default";
-    case EmojiGroupType::EmojiStatus:
-      return string_builder << "EmojiStatus";
-    case EmojiGroupType::ProfilePhoto:
-      return string_builder << "ChatPhoto";
-    case EmojiGroupType::RegularStickers:
-      return string_builder << "RegularStickers";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmojiGroupType.h b/third-party/td/td/td/telegram/EmojiGroupType.h
deleted file mode 100644
index 76e5157a87..0000000000
--- a/third-party/td/td/td/telegram/EmojiGroupType.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class EmojiGroupType : int32 { Default, EmojiStatus, ProfilePhoto, RegularStickers };
-
-static constexpr int32 MAX_EMOJI_GROUP_TYPE = 4;
-
-EmojiGroupType get_emoji_group_type(const td_api::object_ptr<td_api::EmojiCategoryType> &type);
-
-StringBuilder &operator<<(StringBuilder &string_builder, EmojiGroupType emoji_group_type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmojiStatus.cpp b/third-party/td/td/td/telegram/EmojiStatus.cpp
deleted file mode 100644
index ddcff8f2f8..0000000000
--- a/third-party/td/td/td/telegram/EmojiStatus.cpp
+++ /dev/null
@@ -1,639 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/EmojiStatus.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-struct EmojiStatusCustomEmojis {
-  int64 hash_ = 0;
-  vector<CustomEmojiId> custom_emoji_ids_;
-
-  td_api::object_ptr<td_api::emojiStatusCustomEmojis> get_emoji_status_custom_emojis_object() const {
-    return ::td::get_emoji_status_custom_emojis_object(custom_emoji_ids_);
-  }
-
-  EmojiStatusCustomEmojis() = default;
-
-  explicit EmojiStatusCustomEmojis(telegram_api::object_ptr<telegram_api::account_emojiStatuses> &&emoji_statuses) {
-    CHECK(emoji_statuses != nullptr);
-    hash_ = emoji_statuses->hash_;
-    for (auto &status : emoji_statuses->statuses_) {
-      EmojiStatus emoji_status(std::move(status));
-      if (emoji_status.is_empty()) {
-        LOG(ERROR) << "Receive empty emoji status";
-        continue;
-      }
-      if (emoji_status.get_until_date() != 0) {
-        LOG(ERROR) << "Receive temporary emoji status";
-      }
-      auto custom_emoji_id = emoji_status.get_custom_emoji_id();
-      if (!custom_emoji_id.is_valid()) {
-        LOG(ERROR) << "Receive receive non-emoji status";
-        continue;
-      }
-      custom_emoji_ids_.push_back(custom_emoji_id);
-    }
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(hash_, storer);
-    td::store(custom_emoji_ids_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(hash_, parser);
-    td::parse(custom_emoji_ids_, parser);
-  }
-};
-
-struct EmojiStatuses {
-  int64 hash_ = 0;
-  vector<EmojiStatus> emoji_statuses_;
-
-  td_api::object_ptr<td_api::emojiStatuses> get_emoji_statuses_object() const {
-    return td_api::make_object<td_api::emojiStatuses>(transform(
-        emoji_statuses_, [](const EmojiStatus &emoji_status) { return emoji_status.get_emoji_status_object(); }));
-  }
-
-  EmojiStatuses() = default;
-
-  explicit EmojiStatuses(telegram_api::object_ptr<telegram_api::account_emojiStatuses> &&emoji_statuses) {
-    CHECK(emoji_statuses != nullptr);
-    hash_ = emoji_statuses->hash_;
-    for (auto &status : emoji_statuses->statuses_) {
-      EmojiStatus emoji_status(std::move(status));
-      if (emoji_status.is_empty()) {
-        LOG(ERROR) << "Receive empty emoji status";
-        continue;
-      }
-      if (emoji_status.get_until_date() != 0) {
-        LOG(ERROR) << "Receive temporary emoji status";
-        emoji_status.clear_until_date();
-      }
-      emoji_statuses_.push_back(emoji_status);
-    }
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(hash_, storer);
-    td::store(emoji_statuses_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(hash_, parser);
-    td::parse(emoji_statuses_, parser);
-  }
-};
-
-static const string &get_default_emoji_statuses_database_key() {
-  static string key = "def_emoji_statuses";
-  return key;
-}
-
-static const string &get_default_channel_emoji_statuses_database_key() {
-  static string key = "def_ch_emoji_statuses";
-  return key;
-}
-
-static const string &get_recent_emoji_statuses_database_key() {
-  static string key = "rec_emoji_statuses";
-  return key;
-}
-
-static const string &get_upgraded_gift_emoji_statuses_database_key() {
-  static string key = "nft_emoji_statuses";
-  return key;
-}
-
-static EmojiStatuses load_emoji_statuses(const string &key) {
-  EmojiStatuses result;
-  auto log_event_string = G()->td_db()->get_binlog_pmc()->get(key);
-  if (!log_event_string.empty()) {
-    if (log_event_parse(result, log_event_string).is_error()) {
-      result = {};
-      result.hash_ = -1;
-    }
-  } else {
-    result.hash_ = -1;
-  }
-  return result;
-}
-
-static EmojiStatusCustomEmojis load_emoji_status_custom_emojis(const string &key) {
-  EmojiStatusCustomEmojis result;
-  auto log_event_string = G()->td_db()->get_binlog_pmc()->get(key);
-  if (!log_event_string.empty()) {
-    if (log_event_parse(result, log_event_string).is_error()) {
-      result = {};
-      result.hash_ = -1;
-    }
-  } else {
-    result.hash_ = -1;
-  }
-  return result;
-}
-
-static void save_emoji_statuses(const string &key, const EmojiStatuses &emoji_statuses) {
-  G()->td_db()->get_binlog_pmc()->set(key, log_event_store(emoji_statuses).as_slice().str());
-}
-
-static void save_emoji_status_custom_emojis(const string &key, const EmojiStatusCustomEmojis &emoji_statuses) {
-  G()->td_db()->get_binlog_pmc()->set(key, log_event_store(emoji_statuses).as_slice().str());
-}
-
-class GetDefaultEmojiStatusesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> promise_;
-
- public:
-  explicit GetDefaultEmojiStatusesQuery(Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::account_getDefaultEmojiStatuses(hash), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getDefaultEmojiStatuses>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto emoji_statuses_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetDefaultEmojiStatusesQuery: " << to_string(emoji_statuses_ptr);
-
-    if (emoji_statuses_ptr->get_id() == telegram_api::account_emojiStatusesNotModified::ID) {
-      if (promise_) {
-        promise_.set_error(Status::Error(500, "Receive wrong server response"));
-      }
-      return;
-    }
-
-    CHECK(emoji_statuses_ptr->get_id() == telegram_api::account_emojiStatuses::ID);
-    EmojiStatusCustomEmojis emoji_statuses(
-        telegram_api::move_object_as<telegram_api::account_emojiStatuses>(emoji_statuses_ptr));
-    save_emoji_status_custom_emojis(get_default_emoji_statuses_database_key(), emoji_statuses);
-
-    if (promise_) {
-      promise_.set_value(emoji_statuses.get_emoji_status_custom_emojis_object());
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChannelDefaultEmojiStatusesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> promise_;
-
- public:
-  explicit GetChannelDefaultEmojiStatusesQuery(Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::account_getChannelDefaultEmojiStatuses(hash), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getChannelDefaultEmojiStatuses>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto emoji_statuses_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChannelDefaultEmojiStatusesQuery: " << to_string(emoji_statuses_ptr);
-
-    if (emoji_statuses_ptr->get_id() == telegram_api::account_emojiStatusesNotModified::ID) {
-      if (promise_) {
-        promise_.set_error(Status::Error(500, "Receive wrong server response"));
-      }
-      return;
-    }
-
-    CHECK(emoji_statuses_ptr->get_id() == telegram_api::account_emojiStatuses::ID);
-    EmojiStatusCustomEmojis emoji_statuses(
-        telegram_api::move_object_as<telegram_api::account_emojiStatuses>(emoji_statuses_ptr));
-    save_emoji_status_custom_emojis(get_default_channel_emoji_statuses_database_key(), emoji_statuses);
-
-    if (promise_) {
-      promise_.set_value(emoji_statuses.get_emoji_status_custom_emojis_object());
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetRecentEmojiStatusesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::emojiStatuses>> promise_;
-
- public:
-  explicit GetRecentEmojiStatusesQuery(Promise<td_api::object_ptr<td_api::emojiStatuses>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::account_getRecentEmojiStatuses(hash), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getRecentEmojiStatuses>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto emoji_statuses_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetRecentEmojiStatusesQuery: " << to_string(emoji_statuses_ptr);
-
-    if (emoji_statuses_ptr->get_id() == telegram_api::account_emojiStatusesNotModified::ID) {
-      if (promise_) {
-        promise_.set_error(Status::Error(500, "Receive wrong server response"));
-      }
-      return;
-    }
-
-    CHECK(emoji_statuses_ptr->get_id() == telegram_api::account_emojiStatuses::ID);
-    EmojiStatuses emoji_statuses(telegram_api::move_object_as<telegram_api::account_emojiStatuses>(emoji_statuses_ptr));
-    save_emoji_statuses(get_recent_emoji_statuses_database_key(), emoji_statuses);
-
-    if (promise_) {
-      promise_.set_value(emoji_statuses.get_emoji_statuses_object());
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ClearRecentEmojiStatusesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ClearRecentEmojiStatusesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_clearRecentEmojiStatuses(), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_clearRecentEmojiStatuses>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    save_emoji_statuses(get_recent_emoji_statuses_database_key(), EmojiStatuses());
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetCollectibleEmojiStatusesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::emojiStatuses>> promise_;
-
- public:
-  explicit GetCollectibleEmojiStatusesQuery(Promise<td_api::object_ptr<td_api::emojiStatuses>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::account_getCollectibleEmojiStatuses(hash), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getCollectibleEmojiStatuses>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto emoji_statuses_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetCollectibleEmojiStatusesQuery: " << to_string(emoji_statuses_ptr);
-
-    if (emoji_statuses_ptr->get_id() == telegram_api::account_emojiStatusesNotModified::ID) {
-      if (promise_) {
-        promise_.set_error(Status::Error(500, "Receive wrong server response"));
-      }
-      return;
-    }
-
-    CHECK(emoji_statuses_ptr->get_id() == telegram_api::account_emojiStatuses::ID);
-    EmojiStatuses emoji_statuses(telegram_api::move_object_as<telegram_api::account_emojiStatuses>(emoji_statuses_ptr));
-    save_emoji_statuses(get_upgraded_gift_emoji_statuses_database_key(), emoji_statuses);
-
-    if (promise_) {
-      promise_.set_value(emoji_statuses.get_emoji_statuses_object());
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-EmojiStatus::EmojiStatus(const td_api::object_ptr<td_api::emojiStatus> &emoji_status) {
-  if (emoji_status == nullptr || emoji_status->type_ == nullptr) {
-    return;
-  }
-
-  if (emoji_status->expiration_date_ != 0) {
-    int32 current_time = G()->unix_time();
-    if (emoji_status->expiration_date_ <= current_time) {
-      return;
-    }
-    until_date_ = emoji_status->expiration_date_;
-  }
-
-  switch (emoji_status->type_->get_id()) {
-    case td_api::emojiStatusTypeCustomEmoji::ID: {
-      auto type = static_cast<const td_api::emojiStatusTypeCustomEmoji *>(emoji_status->type_.get());
-      custom_emoji_id_ = CustomEmojiId(type->custom_emoji_id_);
-      break;
-    }
-    case td_api::emojiStatusTypeUpgradedGift::ID: {
-      auto type = static_cast<const td_api::emojiStatusTypeUpgradedGift *>(emoji_status->type_.get());
-      collectible_id_ = type->upgraded_gift_id_;
-      title_ = type->gift_title_;
-      slug_ = type->gift_name_;
-      model_custom_emoji_id_ = CustomEmojiId(type->model_custom_emoji_id_);
-      pattern_custom_emoji_id_ = CustomEmojiId(type->symbol_custom_emoji_id_);
-      if (type->backdrop_colors_ != nullptr) {
-        center_color_ = type->backdrop_colors_->center_color_;
-        edge_color_ = type->backdrop_colors_->edge_color_;
-        pattern_color_ = type->backdrop_colors_->symbol_color_;
-        text_color_ = type->backdrop_colors_->text_color_;
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-unique_ptr<EmojiStatus> EmojiStatus::get_emoji_status(const td_api::object_ptr<td_api::emojiStatus> &emoji_status) {
-  if (emoji_status == nullptr) {
-    return nullptr;
-  }
-  auto result = make_unique<EmojiStatus>(emoji_status);
-  if (result->is_empty()) {
-    return nullptr;
-  }
-  return result;
-}
-
-EmojiStatus::EmojiStatus(telegram_api::object_ptr<telegram_api::EmojiStatus> &&emoji_status) {
-  if (emoji_status == nullptr) {
-    return;
-  }
-  switch (emoji_status->get_id()) {
-    case telegram_api::emojiStatusEmpty::ID:
-      break;
-    case telegram_api::emojiStatus::ID: {
-      auto status = static_cast<const telegram_api::emojiStatus *>(emoji_status.get());
-      custom_emoji_id_ = CustomEmojiId(status->document_id_);
-      until_date_ = status->until_;
-      break;
-    }
-    case telegram_api::emojiStatusCollectible::ID: {
-      auto status = static_cast<const telegram_api::emojiStatusCollectible *>(emoji_status.get());
-      collectible_id_ = status->collectible_id_;
-      title_ = status->title_;
-      slug_ = status->slug_;
-      model_custom_emoji_id_ = CustomEmojiId(status->document_id_);
-      pattern_custom_emoji_id_ = CustomEmojiId(status->pattern_document_id_);
-      center_color_ = status->center_color_;
-      edge_color_ = status->edge_color_;
-      pattern_color_ = status->pattern_color_;
-      text_color_ = status->text_color_;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-unique_ptr<EmojiStatus> EmojiStatus::get_emoji_status(
-    telegram_api::object_ptr<telegram_api::EmojiStatus> &&emoji_status) {
-  if (emoji_status == nullptr) {
-    return nullptr;
-  }
-  auto result = make_unique<EmojiStatus>(std::move(emoji_status));
-  if (result->is_empty()) {
-    return nullptr;
-  }
-  return result;
-}
-
-unique_ptr<EmojiStatus> EmojiStatus::clone_emoji_status(const unique_ptr<EmojiStatus> &emoji_status) {
-  if (emoji_status == nullptr) {
-    return nullptr;
-  }
-  return make_unique<EmojiStatus>(*emoji_status);
-}
-
-telegram_api::object_ptr<telegram_api::EmojiStatus> EmojiStatus::get_input_emoji_status() const {
-  if (is_empty()) {
-    return telegram_api::make_object<telegram_api::emojiStatusEmpty>();
-  }
-  if (custom_emoji_id_.is_valid()) {
-    int32 flags = 0;
-    if (until_date_ != 0) {
-      flags |= telegram_api::emojiStatus::UNTIL_MASK;
-    }
-    return telegram_api::make_object<telegram_api::emojiStatus>(flags, custom_emoji_id_.get(), until_date_);
-  } else {
-    int32 flags = 0;
-    if (until_date_ != 0) {
-      flags |= telegram_api::inputEmojiStatusCollectible::UNTIL_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputEmojiStatusCollectible>(flags, collectible_id_, until_date_);
-  }
-}
-
-telegram_api::object_ptr<telegram_api::EmojiStatus> EmojiStatus::get_input_emoji_status(
-    const unique_ptr<EmojiStatus> &emoji_status) {
-  if (emoji_status == nullptr) {
-    return telegram_api::make_object<telegram_api::emojiStatusEmpty>();
-  }
-  return emoji_status->get_input_emoji_status();
-}
-
-td_api::object_ptr<td_api::emojiStatus> EmojiStatus::get_emoji_status_object() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  if (custom_emoji_id_.is_valid()) {
-    return td_api::make_object<td_api::emojiStatus>(
-        td_api::make_object<td_api::emojiStatusTypeCustomEmoji>(custom_emoji_id_.get()), until_date_);
-  } else {
-    return td_api::make_object<td_api::emojiStatus>(
-        td_api::make_object<td_api::emojiStatusTypeUpgradedGift>(
-            collectible_id_, title_, slug_, model_custom_emoji_id_.get(), pattern_custom_emoji_id_.get(),
-            td_api::make_object<td_api::upgradedGiftBackdropColors>(center_color_, edge_color_, pattern_color_,
-                                                                    text_color_)),
-        until_date_);
-  }
-}
-
-td_api::object_ptr<td_api::emojiStatus> EmojiStatus::get_emoji_status_object(
-    const unique_ptr<EmojiStatus> &emoji_status) {
-  if (emoji_status == nullptr) {
-    return nullptr;
-  }
-  return emoji_status->get_emoji_status_object();
-}
-
-EmojiStatus EmojiStatus::get_effective_emoji_status(bool is_premium, int32 unix_time) const {
-  if (!is_premium) {
-    return EmojiStatus();
-  }
-  if (until_date_ != 0 && until_date_ <= unix_time) {
-    return EmojiStatus();
-  }
-  return *this;
-}
-
-unique_ptr<EmojiStatus> EmojiStatus::get_effective_emoji_status(const unique_ptr<EmojiStatus> &emoji_status,
-                                                                bool is_premium, int32 unix_time) {
-  if (emoji_status == nullptr) {
-    return nullptr;
-  }
-  return make_unique<EmojiStatus>(emoji_status->get_effective_emoji_status(is_premium, unix_time));
-}
-
-bool operator==(const EmojiStatus &lhs, const EmojiStatus &rhs) {
-  return lhs.custom_emoji_id_ == rhs.custom_emoji_id_ && lhs.collectible_id_ == rhs.collectible_id_ &&
-         lhs.title_ == rhs.title_ && lhs.slug_ == rhs.slug_ &&
-         lhs.model_custom_emoji_id_ == rhs.model_custom_emoji_id_ &&
-         lhs.pattern_custom_emoji_id_ == rhs.pattern_custom_emoji_id_ && lhs.center_color_ == rhs.center_color_ &&
-         lhs.edge_color_ == rhs.edge_color_ && lhs.pattern_color_ == rhs.pattern_color_ &&
-         lhs.text_color_ == rhs.text_color_ &&
-
-         lhs.until_date_ == rhs.until_date_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const EmojiStatus &emoji_status) {
-  if (emoji_status.is_empty()) {
-    return string_builder << "DefaultProfileBadge";
-  }
-  if (emoji_status.custom_emoji_id_.is_valid()) {
-    string_builder << emoji_status.custom_emoji_id_;
-  } else {
-    string_builder << "gift " << emoji_status.collectible_id_ << ' ' << emoji_status.title_ << ' '
-                   << emoji_status.slug_;
-  }
-  if (emoji_status.until_date_ != 0) {
-    string_builder << " until " << emoji_status.until_date_;
-  }
-  return string_builder;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<EmojiStatus> &emoji_status) {
-  if (emoji_status == nullptr) {
-    return string_builder << "DefaultProfileBadge";
-  }
-  return string_builder << *emoji_status;
-}
-
-td_api::object_ptr<td_api::emojiStatusCustomEmojis> get_emoji_status_custom_emojis_object(
-    const vector<CustomEmojiId> &custom_emoji_ids) {
-  return td_api::make_object<td_api::emojiStatusCustomEmojis>(
-      transform(custom_emoji_ids, [](CustomEmojiId custom_emoji_id) { return custom_emoji_id.get(); }));
-}
-
-void get_default_emoji_statuses(Td *td, Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise) {
-  auto statuses = load_emoji_status_custom_emojis(get_default_emoji_statuses_database_key());
-  if (statuses.hash_ != -1 && promise) {
-    promise.set_value(statuses.get_emoji_status_custom_emojis_object());
-    promise = Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>>();
-  }
-  td->create_handler<GetDefaultEmojiStatusesQuery>(std::move(promise))->send(statuses.hash_);
-}
-
-void get_default_channel_emoji_statuses(Td *td,
-                                        Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise) {
-  auto statuses = load_emoji_status_custom_emojis(get_default_channel_emoji_statuses_database_key());
-  if (statuses.hash_ != -1 && promise) {
-    promise.set_value(statuses.get_emoji_status_custom_emojis_object());
-    promise = Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>>();
-  }
-  td->create_handler<GetChannelDefaultEmojiStatusesQuery>(std::move(promise))->send(statuses.hash_);
-}
-
-void get_recent_emoji_statuses(Td *td, Promise<td_api::object_ptr<td_api::emojiStatuses>> &&promise) {
-  auto statuses = load_emoji_statuses(get_recent_emoji_statuses_database_key());
-  if (statuses.hash_ != -1 && promise) {
-    promise.set_value(statuses.get_emoji_statuses_object());
-    promise = Promise<td_api::object_ptr<td_api::emojiStatuses>>();
-  }
-  td->create_handler<GetRecentEmojiStatusesQuery>(std::move(promise))->send(statuses.hash_);
-}
-
-void add_recent_emoji_status(Td *td, EmojiStatus emoji_status) {
-  if (emoji_status.is_empty()) {
-    return;
-  }
-
-  if (td->stickers_manager_->is_default_emoji_status(emoji_status.get_custom_emoji_id())) {
-    LOG(INFO) << "Skip adding themed emoji status to recents";
-    return;
-  }
-
-  emoji_status.clear_until_date();
-  auto statuses = load_emoji_statuses(get_recent_emoji_statuses_database_key());
-  if (!statuses.emoji_statuses_.empty() && statuses.emoji_statuses_[0] == emoji_status) {
-    return;
-  }
-
-  statuses.hash_ = 0;
-  constexpr size_t MAX_RECENT_EMOJI_STATUSES = 50;  // server-side limit
-  add_to_top(statuses.emoji_statuses_, MAX_RECENT_EMOJI_STATUSES, emoji_status);
-  save_emoji_statuses(get_recent_emoji_statuses_database_key(), statuses);
-}
-
-void clear_recent_emoji_statuses(Td *td, Promise<Unit> &&promise) {
-  save_emoji_statuses(get_recent_emoji_statuses_database_key(), EmojiStatuses());
-  td->create_handler<ClearRecentEmojiStatusesQuery>(std::move(promise))->send();
-}
-
-void get_upgraded_gift_emoji_statuses(Td *td, Promise<td_api::object_ptr<td_api::emojiStatuses>> &&promise) {
-  if (td->auth_manager_->is_bot()) {
-    CHECK(!promise);
-    return;
-  }
-  auto statuses = load_emoji_statuses(get_upgraded_gift_emoji_statuses_database_key());
-  if (statuses.hash_ != -1 && promise) {
-    promise.set_value(statuses.get_emoji_statuses_object());
-    promise = Promise<td_api::object_ptr<td_api::emojiStatuses>>();
-  }
-  td->create_handler<GetCollectibleEmojiStatusesQuery>(std::move(promise))->send(statuses.hash_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EmojiStatus.h b/third-party/td/td/td/telegram/EmojiStatus.h
deleted file mode 100644
index 910bdd052a..0000000000
--- a/third-party/td/td/td/telegram/EmojiStatus.h
+++ /dev/null
@@ -1,194 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Td;
-
-class EmojiStatus {
-  CustomEmojiId custom_emoji_id_;
-
-  int64 collectible_id_ = 0;
-  string title_;
-  string slug_;
-  CustomEmojiId model_custom_emoji_id_;
-  CustomEmojiId pattern_custom_emoji_id_;
-  int32 center_color_ = 0;
-  int32 edge_color_ = 0;
-  int32 pattern_color_ = 0;
-  int32 text_color_ = 0;
-
-  int32 until_date_ = 0;
-
-  friend bool operator==(const EmojiStatus &lhs, const EmojiStatus &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const EmojiStatus &contact);
-
- public:
-  EmojiStatus() = default;
-
-  explicit EmojiStatus(const td_api::object_ptr<td_api::emojiStatus> &emoji_status);
-
-  static unique_ptr<EmojiStatus> get_emoji_status(const td_api::object_ptr<td_api::emojiStatus> &emoji_status);
-
-  explicit EmojiStatus(telegram_api::object_ptr<telegram_api::EmojiStatus> &&emoji_status);
-
-  static unique_ptr<EmojiStatus> get_emoji_status(telegram_api::object_ptr<telegram_api::EmojiStatus> &&emoji_status);
-
-  static unique_ptr<EmojiStatus> clone_emoji_status(const unique_ptr<EmojiStatus> &emoji_status);
-
-  telegram_api::object_ptr<telegram_api::EmojiStatus> get_input_emoji_status() const;
-
-  static telegram_api::object_ptr<telegram_api::EmojiStatus> get_input_emoji_status(
-      const unique_ptr<EmojiStatus> &emoji_status);
-
-  td_api::object_ptr<td_api::emojiStatus> get_emoji_status_object() const;
-
-  static td_api::object_ptr<td_api::emojiStatus> get_emoji_status_object(const unique_ptr<EmojiStatus> &emoji_status);
-
-  EmojiStatus get_effective_emoji_status(bool is_premium, int32 unix_time) const;
-
-  static unique_ptr<EmojiStatus> get_effective_emoji_status(const unique_ptr<EmojiStatus> &emoji_status,
-                                                            bool is_premium, int32 unix_time);
-
-  bool is_empty() const {
-    return !custom_emoji_id_.is_valid() && (collectible_id_ == 0 || title_.empty() ||
-                                            !model_custom_emoji_id_.is_valid() || !pattern_custom_emoji_id_.is_valid());
-  }
-
-  CustomEmojiId get_custom_emoji_id() const {
-    return custom_emoji_id_;
-  }
-
-  int32 get_until_date() const {
-    return until_date_;
-  }
-
-  void clear_until_date() {
-    until_date_ = 0;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_custom_emoji_id = custom_emoji_id_.is_valid();
-    bool has_until_date = until_date_ != 0;
-    bool has_collectible_id = collectible_id_ != 0;
-    bool has_title = !title_.empty();
-    bool has_slug = !slug_.empty();
-    bool has_gift = model_custom_emoji_id_.is_valid() || pattern_custom_emoji_id_.is_valid() || center_color_ != 0 ||
-                    edge_color_ != 0 || pattern_color_ != 0 || text_color_ != 0;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_custom_emoji_id);
-    STORE_FLAG(has_until_date);
-    STORE_FLAG(has_collectible_id);
-    STORE_FLAG(has_title);
-    STORE_FLAG(has_slug);
-    STORE_FLAG(has_gift);
-    END_STORE_FLAGS();
-    if (has_custom_emoji_id) {
-      td::store(custom_emoji_id_, storer);
-    }
-    if (has_until_date) {
-      td::store(until_date_, storer);
-    }
-    if (has_collectible_id) {
-      td::store(collectible_id_, storer);
-    }
-    if (has_title) {
-      td::store(title_, storer);
-    }
-    if (has_slug) {
-      td::store(slug_, storer);
-    }
-    if (has_gift) {
-      td::store(model_custom_emoji_id_, storer);
-      td::store(pattern_custom_emoji_id_, storer);
-      td::store(center_color_, storer);
-      td::store(edge_color_, storer);
-      td::store(pattern_color_, storer);
-      td::store(text_color_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_custom_emoji_id;
-    bool has_until_date;
-    bool has_collectible_id;
-    bool has_title;
-    bool has_slug;
-    bool has_gift;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_custom_emoji_id);
-    PARSE_FLAG(has_until_date);
-    PARSE_FLAG(has_collectible_id);
-    PARSE_FLAG(has_title);
-    PARSE_FLAG(has_slug);
-    PARSE_FLAG(has_gift);
-    END_PARSE_FLAGS();
-    if (has_custom_emoji_id) {
-      td::parse(custom_emoji_id_, parser);
-    }
-    if (has_until_date) {
-      td::parse(until_date_, parser);
-    }
-    if (has_collectible_id) {
-      td::parse(collectible_id_, parser);
-    }
-    if (has_title) {
-      td::parse(title_, parser);
-    }
-    if (has_slug) {
-      td::parse(slug_, parser);
-    }
-    if (has_gift) {
-      td::parse(model_custom_emoji_id_, parser);
-      td::parse(pattern_custom_emoji_id_, parser);
-      td::parse(center_color_, parser);
-      td::parse(edge_color_, parser);
-      td::parse(pattern_color_, parser);
-      td::parse(text_color_, parser);
-    }
-  }
-};
-
-bool operator==(const EmojiStatus &lhs, const EmojiStatus &rhs);
-
-inline bool operator!=(const EmojiStatus &lhs, const EmojiStatus &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const EmojiStatus &emoji_status);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<EmojiStatus> &emoji_status);
-
-td_api::object_ptr<td_api::emojiStatusCustomEmojis> get_emoji_status_custom_emojis_object(
-    const vector<CustomEmojiId> &custom_emoji_ids);
-
-void get_default_emoji_statuses(Td *td, Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise);
-
-void get_default_channel_emoji_statuses(Td *td, Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise);
-
-void get_recent_emoji_statuses(Td *td, Promise<td_api::object_ptr<td_api::emojiStatuses>> &&promise);
-
-void add_recent_emoji_status(Td *td, EmojiStatus emoji_status);
-
-void clear_recent_emoji_statuses(Td *td, Promise<Unit> &&promise);
-
-void get_upgraded_gift_emoji_statuses(Td *td, Promise<td_api::object_ptr<td_api::emojiStatuses>> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/EncryptedFile.h b/third-party/td/td/td/telegram/EncryptedFile.h
deleted file mode 100644
index 0305f5880d..0000000000
--- a/third-party/td/td/td/telegram/EncryptedFile.h
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/misc.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-struct EncryptedFile {
-  int64 id_ = 0;
-  int64 access_hash_ = 0;
-  int64 size_ = 0;
-  int32 dc_id_ = 0;
-  int32 key_fingerprint_ = 0;
-
-  EncryptedFile() = default;
-  EncryptedFile(int64 id, int64 access_hash, int64 size, int32 dc_id, int32 key_fingerprint)
-      : id_(id), access_hash_(access_hash), size_(size), dc_id_(dc_id), key_fingerprint_(key_fingerprint) {
-    CHECK(size_ >= 0);
-  }
-
-  static unique_ptr<EncryptedFile> get_encrypted_file(tl_object_ptr<telegram_api::EncryptedFile> file_ptr) {
-    if (file_ptr == nullptr || file_ptr->get_id() != telegram_api::encryptedFile::ID) {
-      return nullptr;
-    }
-    auto file = move_tl_object_as<telegram_api::encryptedFile>(file_ptr);
-    if (file->size_ < 0) {
-      return nullptr;
-    }
-    return make_unique<EncryptedFile>(file->id_, file->access_hash_, file->size_, file->dc_id_, file->key_fingerprint_);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    bool has_64bit_size = (size_ >= (static_cast<int64>(1) << 31));
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_64bit_size);
-    END_STORE_FLAGS();
-    store(id_, storer);
-    store(access_hash_, storer);
-    if (has_64bit_size) {
-      store(size_, storer);
-    } else {
-      store(narrow_cast<int32>(size_), storer);
-    }
-    store(dc_id_, storer);
-    store(key_fingerprint_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    bool has_64bit_size;
-    BEGIN_PARSE_FLAGS();
-    constexpr int32 OLD_MAGIC = 0x473d738a;
-    if (flags_parse == OLD_MAGIC) {
-      flags_parse = 0;
-    }
-    PARSE_FLAG(has_64bit_size);
-    END_PARSE_FLAGS();
-    parse(id_, parser);
-    parse(access_hash_, parser);
-    if (has_64bit_size) {
-      parse(size_, parser);
-    } else {
-      int32 int_size;
-      parse(int_size, parser);
-      size_ = int_size;
-    }
-    parse(dc_id_, parser);
-    parse(key_fingerprint_, parser);
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const EncryptedFile &file) {
-  return sb << "[" << tag("id", file.id_) << tag("access_hash", file.access_hash_) << tag("size", file.size_)
-            << tag("dc_id", file.dc_id_) << tag("key_fingerprint", file.key_fingerprint_) << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/FactCheck.cpp b/third-party/td/td/td/telegram/FactCheck.cpp
deleted file mode 100644
index 1deacef832..0000000000
--- a/third-party/td/td/td/telegram/FactCheck.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/FactCheck.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/telegram_api.h"
-
-namespace td {
-
-FactCheck::~FactCheck() = default;
-
-unique_ptr<FactCheck> FactCheck::get_fact_check(const UserManager *user_manager,
-                                                telegram_api::object_ptr<telegram_api::factCheck> &&fact_check,
-                                                bool is_bot) {
-  if (is_bot || fact_check == nullptr || fact_check->hash_ == 0) {
-    return nullptr;
-  }
-  auto result = make_unique<FactCheck>();
-  result->country_code_ = std::move(fact_check->country_);
-  result->text_ = get_formatted_text(user_manager, std::move(fact_check->text_), true, false, "factCheck");
-  result->hash_ = fact_check->hash_;
-  result->need_check_ = fact_check->need_check_;
-  return result;
-}
-
-void FactCheck::update_from(const FactCheck &old_fact_check) {
-  if (!need_check_ || old_fact_check.need_check_ || hash_ != old_fact_check.hash_) {
-    return;
-  }
-  need_check_ = false;
-  country_code_ = old_fact_check.country_code_;
-  text_ = old_fact_check.text_;
-}
-
-void FactCheck::add_dependencies(Dependencies &dependencies) const {
-  add_formatted_text_dependencies(dependencies, &text_);
-}
-
-td_api::object_ptr<td_api::factCheck> FactCheck::get_fact_check_object(const UserManager *user_manager) const {
-  if (is_empty() || need_check_) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::factCheck>(get_formatted_text_object(user_manager, text_, true, -1),
-                                                country_code_);
-}
-
-bool operator==(const FactCheck &lhs, const FactCheck &rhs) {
-  return lhs.country_code_ == rhs.country_code_ && lhs.text_ == rhs.text_ && lhs.hash_ == rhs.hash_ &&
-         lhs.need_check_ == rhs.need_check_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/FactCheck.h b/third-party/td/td/td/telegram/FactCheck.h
deleted file mode 100644
index a8184f6f96..0000000000
--- a/third-party/td/td/td/telegram/FactCheck.h
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Dependencies;
-
-class UserManager;
-
-class FactCheck {
-  string country_code_;
-  FormattedText text_;
-  int64 hash_ = 0;
-  bool need_check_ = false;
-
-  friend bool operator==(const FactCheck &lhs, const FactCheck &rhs);
-
- public:
-  FactCheck() = default;
-  FactCheck(const FactCheck &) = delete;
-  FactCheck &operator=(const FactCheck &) = delete;
-  FactCheck(FactCheck &&) = default;
-  FactCheck &operator=(FactCheck &&) = default;
-  ~FactCheck();
-
-  static unique_ptr<FactCheck> get_fact_check(const UserManager *user_manager,
-                                              telegram_api::object_ptr<telegram_api::factCheck> &&fact_check,
-                                              bool is_bot);
-
-  bool is_empty() const {
-    return hash_ == 0;
-  }
-
-  bool need_check() const {
-    return need_check_;
-  }
-
-  void update_from(const FactCheck &old_fact_check);
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  td_api::object_ptr<td_api::factCheck> get_fact_check_object(const UserManager *user_manager) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const FactCheck &lhs, const FactCheck &rhs);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/FactCheck.hpp b/third-party/td/td/td/telegram/FactCheck.hpp
deleted file mode 100644
index 8aa31764fc..0000000000
--- a/third-party/td/td/td/telegram/FactCheck.hpp
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/FactCheck.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void FactCheck::store(StorerT &storer) const {
-  CHECK(!is_empty());
-  bool has_country_code = !country_code_.empty();
-  bool has_text = !text_.text.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(need_check_);
-  STORE_FLAG(has_country_code);
-  STORE_FLAG(has_text);
-  END_STORE_FLAGS();
-  td::store(hash_, storer);
-  if (has_country_code) {
-    td::store(country_code_, storer);
-  }
-  if (has_text) {
-    td::store(text_, storer);
-  }
-}
-
-template <class ParserT>
-void FactCheck::parse(ParserT &parser) {
-  bool has_country_code;
-  bool has_text;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(need_check_);
-  PARSE_FLAG(has_country_code);
-  PARSE_FLAG(has_text);
-  END_PARSE_FLAGS();
-  td::parse(hash_, parser);
-  if (has_country_code) {
-    td::parse(country_code_, parser);
-  }
-  if (has_text) {
-    td::parse(text_, parser);
-  }
-  if (is_empty()) {
-    parser.set_error("Load an empty fact check");
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/FileReferenceManager.cpp b/third-party/td/td/td/telegram/FileReferenceManager.cpp
deleted file mode 100644
index bfd74be866..0000000000
--- a/third-party/td/td/td/telegram/FileReferenceManager.cpp
+++ /dev/null
@@ -1,559 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/FileReferenceManager.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/BackgroundManager.h"
-#include "td/telegram/BotInfoManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/NotificationSettingsManager.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StickerSetId.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/WebAppManager.h"
-#include "td/telegram/WebPageId.h"
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-int VERBOSITY_NAME(file_references) = VERBOSITY_NAME(INFO);
-
-FileReferenceManager::FileReferenceManager(ActorShared<> parent) : parent_(std::move(parent)) {
-}
-
-FileReferenceManager::~FileReferenceManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), file_sources_, nodes_);
-}
-
-void FileReferenceManager::tear_down() {
-  parent_.reset();
-}
-
-bool FileReferenceManager::is_file_reference_error(const Status &error) {
-  return error.is_error() && error.code() == 400 && begins_with(error.message(), "FILE_REFERENCE_");
-}
-
-FileReferenceManager::FileReferenceErrorSource FileReferenceManager::get_file_reference_error_source(
-    const Status &error) {
-  if (!is_file_reference_error(error)) {
-    return {0, false};
-  }
-  auto offset = Slice("FILE_REFERENCE_").size();
-  Slice message = error.message();
-  if (message.size() <= offset) {
-    return {0, false};
-  }
-  message = message.substr(offset);
-  if (!is_digit(message[0])) {
-    if (message[0] == '_') {
-      message = message.substr(1);
-    }
-    return {0, begins_with(message, "COVER_")};
-  }
-  auto underscore_pos = message.find('_');
-  auto is_cover = underscore_pos != Slice::npos && begins_with(message.substr(underscore_pos + 1), "COVER_");
-  return {to_integer<size_t>(message) + 1, is_cover};
-}
-
-/*
-fileSourceMessage chat_id:int53 message_id:int53 = FileSource;                             // get_message_from_server
-fileSourceUserProfilePhoto user_id:int53 photo_id:int64 = FileSource;                      // photos.getUserPhotos
-fileSourceBasicGroupPhoto basic_group_id:int53 = FileSource;                               // no need to repair
-fileSourceSupergroupPhoto supergroup_id:int53 = FileSource;                                // no need to repair
-fileSourceWebPage url:string = FileSource;                                                 // messages.getWebPage
-fileSourceWallpapers = FileSource;                                                         // can't be repaired
-fileSourceSavedAnimations = FileSource;                                                    // messages.getSavedGifs
-fileSourceRecentStickers is_attached:Bool = FileSource;                                    // messages.getRecentStickers, not reliable
-fileSourceFavoriteStickers = FileSource;                                                   // messages.getFavedStickers, not reliable
-fileSourceBackground background_id:int64 access_hash:int64 = FileSource;                   // account.getWallPaper
-fileSourceBasicGroupFull basic_group_id:int53 = FileSource;                                // messages.getFullChat
-fileSourceSupergroupFull supergroup_id:int53 = FileSource;                                 // messages.getFullChannel
-fileSourceAppConfig = FileSource;                                                          // help.getAppConfig, not reliable
-fileSourceSavedRingtones = FileSource;                                                     // account.getSavedRingtones
-fileSourceUserFull = FileSource;                                                           // users.getFullUser
-fileSourceAttachmentMenuBot user_id:int53 = FileSource;                                    // messages.getAttachMenuBot
-fileSourceWebApp user_id:int53 short_name:string = FileSource;                             // messages.getAttachMenuBot
-fileSourceStory chat_id:int53 story_id:int32 = FileSource;                                 // stories.getStoriesByID
-fileSourceQuickReplyMessage shortcut_id:int32 message_id:int53 = FileSource;               // messages.getQuickReplyMessages
-fileSourceStarTransaction chat_id:int53 transaction_id:string is_refund:Bool = FileSource; // payments.getStarsTransactionsByID
-fileSourceBotMediaPreview bot_user_id:int53 = FileSource;                                  // bots.getPreviewMedias
-fileSourceBotMediaPreviewInfo bot_user_id:int53 language_code:string = FileSource;         // bots.getPreviewMediaInfo
-*/
-
-FileSourceId FileReferenceManager::get_current_file_source_id() const {
-  return FileSourceId(narrow_cast<int32>(file_sources_.size()));
-}
-
-template <class T>
-FileSourceId FileReferenceManager::add_file_source_id(T &source, Slice source_str) {
-  file_sources_.emplace_back(std::move(source));
-  VLOG(file_references) << "Create file source " << file_sources_.size() << " for " << source_str;
-  return get_current_file_source_id();
-}
-
-FileSourceId FileReferenceManager::create_message_file_source(MessageFullId message_full_id) {
-  FileSourceMessage source{message_full_id};
-  return add_file_source_id(source, PSLICE() << message_full_id);
-}
-
-FileSourceId FileReferenceManager::create_user_photo_file_source(UserId user_id, int64 photo_id) {
-  FileSourceUserPhoto source{photo_id, user_id};
-  return add_file_source_id(source, PSLICE() << "photo " << photo_id << " of " << user_id);
-}
-
-FileSourceId FileReferenceManager::create_web_page_file_source(string url) {
-  FileSourceWebPage source{std::move(url)};
-  auto source_str = PSTRING() << "web page of " << source.url;
-  return add_file_source_id(source, source_str);
-}
-
-FileSourceId FileReferenceManager::create_saved_animations_file_source() {
-  FileSourceSavedAnimations source;
-  return add_file_source_id(source, "saved animations");
-}
-
-FileSourceId FileReferenceManager::create_recent_stickers_file_source(bool is_attached) {
-  FileSourceRecentStickers source{is_attached};
-  return add_file_source_id(source, PSLICE() << "recent " << (is_attached ? "attached " : "") << "stickers");
-}
-
-FileSourceId FileReferenceManager::create_favorite_stickers_file_source() {
-  FileSourceFavoriteStickers source;
-  return add_file_source_id(source, "favorite stickers");
-}
-
-FileSourceId FileReferenceManager::create_background_file_source(BackgroundId background_id, int64 access_hash) {
-  FileSourceBackground source{background_id, access_hash};
-  return add_file_source_id(source, PSLICE() << background_id);
-}
-
-FileSourceId FileReferenceManager::create_chat_full_file_source(ChatId chat_id) {
-  FileSourceChatFull source{chat_id};
-  return add_file_source_id(source, PSLICE() << "full " << chat_id);
-}
-
-FileSourceId FileReferenceManager::create_channel_full_file_source(ChannelId channel_id) {
-  FileSourceChannelFull source{channel_id};
-  return add_file_source_id(source, PSLICE() << "full " << channel_id);
-}
-
-FileSourceId FileReferenceManager::create_app_config_file_source() {
-  FileSourceAppConfig source;
-  return add_file_source_id(source, "app config");
-}
-
-FileSourceId FileReferenceManager::create_saved_ringtones_file_source() {
-  FileSourceSavedRingtones source;
-  return add_file_source_id(source, "saved notification sounds");
-}
-
-FileSourceId FileReferenceManager::create_user_full_file_source(UserId user_id) {
-  FileSourceUserFull source{user_id};
-  return add_file_source_id(source, PSLICE() << "full " << user_id);
-}
-
-FileSourceId FileReferenceManager::create_attach_menu_bot_file_source(UserId user_id) {
-  FileSourceAttachMenuBot source{user_id};
-  return add_file_source_id(source, PSLICE() << "attachment menu bot " << user_id);
-}
-
-FileSourceId FileReferenceManager::create_web_app_file_source(UserId user_id, const string &short_name) {
-  FileSourceWebApp source{user_id, short_name};
-  return add_file_source_id(source, PSLICE() << "Web App " << user_id << '/' << short_name);
-}
-
-FileSourceId FileReferenceManager::create_story_file_source(StoryFullId story_full_id) {
-  FileSourceStory source{story_full_id};
-  return add_file_source_id(source, PSLICE() << story_full_id);
-}
-
-FileSourceId FileReferenceManager::create_quick_reply_message_file_source(QuickReplyMessageFullId message_full_id) {
-  FileSourceQuickReplyMessage source{message_full_id};
-  return add_file_source_id(source, PSLICE() << "quick reply " << message_full_id);
-}
-
-FileSourceId FileReferenceManager::create_star_transaction_file_source(DialogId dialog_id, const string &transaction_id,
-                                                                       bool is_refund) {
-  FileSourceStarTransaction source{dialog_id, transaction_id, is_refund};
-  return add_file_source_id(source, PSLICE() << "star transaction " << transaction_id << " in " << dialog_id);
-}
-
-FileSourceId FileReferenceManager::create_bot_media_preview_file_source(UserId bot_user_id) {
-  FileSourceBotMediaPreview source{bot_user_id};
-  return add_file_source_id(source, PSLICE() << "bot media preview " << bot_user_id);
-}
-
-FileSourceId FileReferenceManager::create_bot_media_preview_info_file_source(UserId bot_user_id,
-                                                                             const string &language_code) {
-  FileSourceBotMediaPreviewInfo source{bot_user_id, language_code};
-  return add_file_source_id(source, PSLICE() << "bot media preview info " << bot_user_id << " for " << language_code);
-}
-
-FileReferenceManager::Node &FileReferenceManager::add_node(NodeId node_id) {
-  CHECK(node_id.is_valid());
-  auto &node = nodes_[node_id];
-  if (node == nullptr) {
-    node = make_unique<Node>();
-  }
-  return *node;
-}
-
-bool FileReferenceManager::add_file_source(NodeId node_id, FileSourceId file_source_id, const char *source) {
-  auto &node = add_node(node_id);
-  bool is_added = node.file_source_ids.add(file_source_id);
-  VLOG(file_references) << "Add " << (is_added ? "new" : "old") << ' ' << file_source_id << " for file " << node_id
-                        << " from " << source;
-  return is_added;
-}
-
-bool FileReferenceManager::remove_file_source(NodeId node_id, FileSourceId file_source_id, const char *source) {
-  CHECK(node_id.is_valid());
-  auto *node = nodes_.get_pointer(node_id);
-  bool is_removed = node != nullptr && node->file_source_ids.remove(file_source_id);
-  if (is_removed) {
-    VLOG(file_references) << "Remove " << file_source_id << " from file " << node_id << " from " << source;
-  } else {
-    VLOG(file_references) << "Can't find " << file_source_id << " from file " << node_id << " to remove it from "
-                          << source;
-  }
-  return is_removed;
-}
-
-vector<FileSourceId> FileReferenceManager::get_some_file_sources(NodeId node_id) {
-  auto *node = nodes_.get_pointer(node_id);
-  if (node == nullptr) {
-    return {};
-  }
-  return node->file_source_ids.get_some_elements();
-}
-
-vector<MessageFullId> FileReferenceManager::get_some_message_file_sources(NodeId node_id) {
-  auto file_source_ids = get_some_file_sources(node_id);
-
-  vector<MessageFullId> result;
-  for (auto file_source_id : file_source_ids) {
-    auto index = static_cast<size_t>(file_source_id.get()) - 1;
-    CHECK(index < file_sources_.size());
-    const auto &file_source = file_sources_[index];
-    if (file_source.get_offset() == 0) {
-      result.push_back(file_source.get<FileSourceMessage>().message_full_id);
-    }
-  }
-  return result;
-}
-
-void FileReferenceManager::merge(NodeId to_node_id, NodeId from_node_id) {
-  auto *from_node_ptr = nodes_.get_pointer(from_node_id);
-  if (from_node_ptr == nullptr) {
-    return;
-  }
-  auto &from = *from_node_ptr;
-
-  auto &to = add_node(to_node_id);
-  VLOG(file_references) << "Merge " << to.file_source_ids.size() << " and " << from.file_source_ids.size()
-                        << " sources of files " << to_node_id << " and " << from_node_id;
-  CHECK(!to.query || to.query->proxy.is_empty());
-  CHECK(!from.query || from.query->proxy.is_empty());
-  if (to.query || from.query) {
-    if (!to.query) {
-      to.query = make_unique<Query>();
-      to.query->generation = ++query_generation_;
-    }
-    if (from.query) {
-      combine(to.query->promises, std::move(from.query->promises));
-      to.query->active_queries += from.query->active_queries;
-      from.query->proxy = Destination(to_node_id, to.query->generation);
-    }
-  }
-  to.file_source_ids.merge(std::move(from.file_source_ids));
-  run_node(to_node_id);
-  run_node(from_node_id);
-}
-
-void FileReferenceManager::run_node(NodeId node_id) {
-  CHECK(node_id.is_valid());
-  auto *node_ptr = nodes_.get_pointer(node_id);
-  if (node_ptr == nullptr) {
-    return;
-  }
-  Node &node = *node_ptr;
-  if (!node.query) {
-    return;
-  }
-  if (node.query->active_queries != 0) {
-    return;
-  }
-  VLOG(file_references) << "Trying to repair file reference for file " << node_id;
-  if (node.query->promises.empty()) {
-    node.query = {};
-    return;
-  }
-  if (!node.file_source_ids.has_next()) {
-    VLOG(file_references) << "Have no more file sources to repair file reference for file " << node_id;
-    for (auto &p : node.query->promises) {
-      if (node.file_source_ids.empty()) {
-        p.set_error(Status::Error(400, "File source is not found"));
-      } else {
-        p.set_error(Status::Error(429, "Too Many Requests: retry after 1"));
-      }
-    }
-    node.query = {};
-    return;
-  }
-  if (node.last_successful_repair_time >= Time::now() - 60) {
-    VLOG(file_references) << "Recently repaired file reference for file " << node_id << ", do not try again";
-    for (auto &p : node.query->promises) {
-      p.set_error(Status::Error(429, "Too Many Requests: retry after 60"));
-    }
-    node.query = {};
-    return;
-  }
-  auto file_source_id = node.file_source_ids.next();
-  send_query(Destination(node_id, node.query->generation), file_source_id);
-}
-
-void FileReferenceManager::send_query(Destination dest, FileSourceId file_source_id) {
-  VLOG(file_references) << "Send file reference repair query for file " << dest.node_id << " with generation "
-                        << dest.generation << " from " << file_source_id;
-  auto &node = add_node(dest.node_id);
-  node.query->active_queries++;
-
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), file_manager_actor_id = G()->file_manager(), dest,
-                                         file_source_id](Result<Unit> result) {
-    auto new_promise = PromiseCreator::lambda([actor_id, dest, file_source_id](Result<Unit> result) {
-      Status status;
-      if (result.is_error()) {
-        status = result.move_as_error();
-      }
-      send_closure(actor_id, &FileReferenceManager::on_query_result, dest, file_source_id, std::move(status), 0);
-    });
-
-    send_closure(file_manager_actor_id, &FileManager::on_file_reference_repaired, dest.node_id, file_source_id,
-                 std::move(result), std::move(new_promise));
-  });
-  auto index = static_cast<size_t>(file_source_id.get()) - 1;
-  CHECK(index < file_sources_.size());
-  file_sources_[index].visit(overloaded(
-      [&](const FileSourceMessage &source) {
-        send_closure_later(G()->messages_manager(), &MessagesManager::get_message_from_server, source.message_full_id,
-                           std::move(promise), "FileSourceMessage", nullptr);
-      },
-      [&](const FileSourceUserPhoto &source) {
-        send_closure_later(G()->user_manager(), &UserManager::reload_user_profile_photo, source.user_id,
-                           source.photo_id, std::move(promise));
-      },
-      [&](const FileSourceChatPhoto &source) {
-        send_closure_later(G()->chat_manager(), &ChatManager::reload_chat, source.chat_id, std::move(promise),
-                           "FileSourceChatPhoto");
-      },
-      [&](const FileSourceChannelPhoto &source) {
-        send_closure_later(G()->chat_manager(), &ChatManager::reload_channel, source.channel_id, std::move(promise),
-                           "FileSourceChannelPhoto");
-      },
-      [&](const FileSourceWallpapers &source) { promise.set_error(Status::Error("Can't repair old wallpapers")); },
-      [&](const FileSourceWebPage &source) {
-        send_closure_later(G()->web_pages_manager(), &WebPagesManager::reload_web_page_by_url, source.url, false,
-                           PromiseCreator::lambda([promise = std::move(promise)](Result<WebPageId> &&result) mutable {
-                             if (result.is_error()) {
-                               promise.set_error(result.move_as_error());
-                             } else {
-                               promise.set_value(Unit());
-                             }
-                           }));
-      },
-      [&](const FileSourceSavedAnimations &source) {
-        send_closure_later(G()->animations_manager(), &AnimationsManager::repair_saved_animations, std::move(promise));
-      },
-      [&](const FileSourceRecentStickers &source) {
-        send_closure_later(G()->stickers_manager(), &StickersManager::repair_recent_stickers, source.is_attached,
-                           std::move(promise));
-      },
-      [&](const FileSourceFavoriteStickers &source) {
-        send_closure_later(G()->stickers_manager(), &StickersManager::repair_favorite_stickers, std::move(promise));
-      },
-      [&](const FileSourceBackground &source) {
-        send_closure_later(G()->background_manager(), &BackgroundManager::reload_background, source.background_id,
-                           source.access_hash, std::move(promise));
-      },
-      [&](const FileSourceChatFull &source) {
-        send_closure_later(G()->chat_manager(), &ChatManager::reload_chat_full, source.chat_id, std::move(promise),
-                           "FileSourceChatFull");
-      },
-      [&](const FileSourceChannelFull &source) {
-        send_closure_later(G()->chat_manager(), &ChatManager::reload_channel_full, source.channel_id,
-                           std::move(promise), "FileSourceChannelFull");
-      },
-      [&](const FileSourceAppConfig &source) {
-        send_closure_later(G()->config_manager(), &ConfigManager::reget_app_config, std::move(promise));
-      },
-      [&](const FileSourceSavedRingtones &source) {
-        send_closure_later(G()->notification_settings_manager(), &NotificationSettingsManager::repair_saved_ringtones,
-                           std::move(promise));
-      },
-      [&](const FileSourceUserFull &source) {
-        send_closure_later(G()->user_manager(), &UserManager::reload_user_full, source.user_id, std::move(promise),
-                           "FileSourceUserFull");
-      },
-      [&](const FileSourceAttachMenuBot &source) {
-        send_closure_later(G()->attach_menu_manager(), &AttachMenuManager::reload_attach_menu_bot, source.user_id,
-                           std::move(promise));
-      },
-      [&](const FileSourceWebApp &source) {
-        send_closure_later(G()->web_app_manager(), &WebAppManager::reload_web_app, source.user_id, source.short_name,
-                           std::move(promise));
-      },
-      [&](const FileSourceStory &source) {
-        send_closure_later(G()->story_manager(), &StoryManager::reload_story, source.story_full_id, std::move(promise),
-                           "FileSourceStory");
-      },
-      [&](const FileSourceQuickReplyMessage &source) {
-        send_closure_later(G()->quick_reply_manager(), &QuickReplyManager::reload_quick_reply_message,
-                           source.message_full_id.get_quick_reply_shortcut_id(),
-                           source.message_full_id.get_message_id(), std::move(promise));
-      },
-      [&](const FileSourceStarTransaction &source) {
-        send_closure_later(G()->star_manager(), &StarManager::reload_star_transaction, source.dialog_id,
-                           source.transaction_id, source.is_refund, std::move(promise));
-      },
-      [&](const FileSourceBotMediaPreview &source) {
-        send_closure_later(G()->bot_info_manager(), &BotInfoManager::reload_bot_media_previews, source.bot_user_id,
-                           std::move(promise));
-      },
-      [&](const FileSourceBotMediaPreviewInfo &source) {
-        send_closure_later(G()->bot_info_manager(), &BotInfoManager::reload_bot_media_preview_info, source.bot_user_id,
-                           source.language_code, std::move(promise));
-      }));
-}
-
-FileReferenceManager::Destination FileReferenceManager::on_query_result(Destination dest, FileSourceId file_source_id,
-                                                                        Status status, int32 sub) {
-  if (G()->close_flag()) {
-    VLOG(file_references) << "Ignore file reference repair from " << file_source_id << " during closing";
-    return dest;
-  }
-
-  VLOG(file_references) << "Receive result of file reference repair query for file " << dest.node_id
-                        << " with generation " << dest.generation << " from " << file_source_id << ": " << status << " "
-                        << sub;
-  auto &node = add_node(dest.node_id);
-
-  auto query = node.query.get();
-  if (!query) {
-    return dest;
-  }
-  if (query->generation != dest.generation) {
-    return dest;
-  }
-  query->active_queries--;
-  CHECK(query->active_queries >= 0);
-
-  if (!query->proxy.is_empty()) {
-    query->active_queries -= sub;
-    CHECK(query->active_queries >= 0);
-    auto new_proxy = on_query_result(query->proxy, file_source_id, std::move(status), query->active_queries);
-    query->proxy = new_proxy;
-    run_node(dest.node_id);
-    return new_proxy;
-  }
-
-  if (status.is_ok()) {
-    node.last_successful_repair_time = Time::now();
-    for (auto &p : query->promises) {
-      p.set_value(Unit());
-    }
-    node.query = {};
-  }
-
-  run_node(dest.node_id);
-  return dest;
-}
-
-void FileReferenceManager::repair_file_reference(NodeId node_id, Promise<> promise) {
-  auto main_file_id = G()->td().get_actor_unsafe()->file_manager_->get_file_view(node_id).get_main_file_id();
-  VLOG(file_references) << "Repair file reference for file " << node_id << "/" << main_file_id;
-  node_id = main_file_id;
-  auto &node = add_node(node_id);
-  if (!node.query) {
-    node.query = make_unique<Query>();
-    node.query->generation = ++query_generation_;
-    node.file_source_ids.reset_position();
-    VLOG(file_references) << "Create new file reference repair query with generation " << query_generation_;
-  }
-  node.query->promises.push_back(std::move(promise));
-  run_node(node_id);
-}
-
-void FileReferenceManager::reload_photo(PhotoSizeSource source, Promise<Unit> promise) {
-  switch (source.get_type("reload_photo")) {
-    case PhotoSizeSource::Type::DialogPhotoBig:
-    case PhotoSizeSource::Type::DialogPhotoSmall:
-    case PhotoSizeSource::Type::DialogPhotoBigLegacy:
-    case PhotoSizeSource::Type::DialogPhotoSmallLegacy:
-      send_closure(G()->dialog_manager(), &DialogManager::reload_dialog_info, source.dialog_photo().dialog_id,
-                   std::move(promise));
-      break;
-    case PhotoSizeSource::Type::StickerSetThumbnail:
-    case PhotoSizeSource::Type::StickerSetThumbnailLegacy:
-    case PhotoSizeSource::Type::StickerSetThumbnailVersion:
-      send_closure(G()->stickers_manager(), &StickersManager::reload_sticker_set,
-                   StickerSetId(source.sticker_set_thumbnail().sticker_set_id),
-                   source.sticker_set_thumbnail().sticker_set_access_hash, std::move(promise));
-      break;
-    case PhotoSizeSource::Type::Legacy:
-    case PhotoSizeSource::Type::FullLegacy:
-    case PhotoSizeSource::Type::Thumbnail:
-      promise.set_error(Status::Error("Unexpected PhotoSizeSource type"));
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void FileReferenceManager::get_file_search_text(FileSourceId file_source_id, string unique_file_id,
-                                                Promise<string> promise) {
-  auto index = static_cast<size_t>(file_source_id.get()) - 1;
-  CHECK(index < file_sources_.size());
-  file_sources_[index].visit(overloaded(
-      [&](const FileSourceMessage &source) {
-        send_closure_later(G()->messages_manager(), &MessagesManager::get_message_file_search_text,
-                           source.message_full_id, std::move(unique_file_id), std::move(promise));
-      },
-      [&](const auto &source) { promise.set_error(Status::Error(500, "Unsupported file source")); }));
-}
-
-td_api::object_ptr<td_api::message> FileReferenceManager::get_message_object(FileSourceId file_source_id) const {
-  auto index = static_cast<size_t>(file_source_id.get()) - 1;
-  CHECK(index < file_sources_.size());
-  td_api::object_ptr<td_api::message> result;
-  file_sources_[index].visit(overloaded(
-      [&](const FileSourceMessage &source) {
-        result = G()->td().get_actor_unsafe()->messages_manager_->get_message_object(source.message_full_id,
-                                                                                     "FileReferenceManager");
-      },
-      [&](const auto &source) { LOG(ERROR) << "Unsupported file source"; }));
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/FileReferenceManager.h b/third-party/td/td/td/telegram/FileReferenceManager.h
deleted file mode 100644
index 56d82867fa..0000000000
--- a/third-party/td/td/td/telegram/FileReferenceManager.h
+++ /dev/null
@@ -1,234 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BackgroundId.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/QuickReplyMessageFullId.h"
-#include "td/telegram/SetWithPosition.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/Variant.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeVector.h"
-
-namespace td {
-
-class Td;
-
-extern int VERBOSITY_NAME(file_references);
-
-class FileReferenceManager final : public Actor {
- public:
-  explicit FileReferenceManager(ActorShared<> parent);
-  FileReferenceManager(const FileReferenceManager &) = delete;
-  FileReferenceManager &operator=(const FileReferenceManager &) = delete;
-  FileReferenceManager(FileReferenceManager &&) = delete;
-  FileReferenceManager &operator=(FileReferenceManager &&) = delete;
-  ~FileReferenceManager() final;
-
-  static bool is_file_reference_error(const Status &error);
-
-  struct FileReferenceErrorSource {
-    size_t pos_;
-    bool is_cover_;
-  };
-  static FileReferenceErrorSource get_file_reference_error_source(const Status &error);
-
-  FileSourceId create_message_file_source(MessageFullId message_full_id);
-  FileSourceId create_user_photo_file_source(UserId user_id, int64 photo_id);
-  // file reference aren't used for chat/channel photo download and the photos can't be reused
-  // FileSourceId create_chat_photo_file_source(ChatId chat_id);
-  // FileSourceId create_channel_photo_file_source(ChannelId channel_id);
-  // FileSourceId create_wallpapers_file_source();  old wallpapers can't be repaired
-  FileSourceId create_web_page_file_source(string url);
-  FileSourceId create_saved_animations_file_source();
-  FileSourceId create_recent_stickers_file_source(bool is_attached);
-  FileSourceId create_favorite_stickers_file_source();
-  FileSourceId create_background_file_source(BackgroundId background_id, int64 access_hash);
-  FileSourceId create_chat_full_file_source(ChatId chat_id);
-  FileSourceId create_channel_full_file_source(ChannelId channel_id);
-  FileSourceId create_app_config_file_source();
-  FileSourceId create_saved_ringtones_file_source();
-  FileSourceId create_user_full_file_source(UserId user_id);
-  FileSourceId create_attach_menu_bot_file_source(UserId user_id);
-  FileSourceId create_web_app_file_source(UserId user_id, const string &short_name);
-  FileSourceId create_story_file_source(StoryFullId story_full_id);
-  FileSourceId create_quick_reply_message_file_source(QuickReplyMessageFullId message_full_id);
-  FileSourceId create_star_transaction_file_source(DialogId dialog_id, const string &transaction_id, bool is_refund);
-  FileSourceId create_bot_media_preview_file_source(UserId bot_user_id);
-  FileSourceId create_bot_media_preview_info_file_source(UserId bot_user_id, const string &language_code);
-
-  using NodeId = FileId;
-  void repair_file_reference(NodeId node_id, Promise<> promise);
-
-  void get_file_search_text(FileSourceId file_source_id, string unique_file_id, Promise<string> promise);
-
-  td_api::object_ptr<td_api::message> get_message_object(FileSourceId file_source_id) const;
-
-  static void reload_photo(PhotoSizeSource source, Promise<Unit> promise);
-
-  bool add_file_source(NodeId node_id, FileSourceId file_source_id, const char *source);
-
-  vector<FileSourceId> get_some_file_sources(NodeId node_id);
-
-  vector<MessageFullId> get_some_message_file_sources(NodeId node_id);
-
-  bool remove_file_source(NodeId node_id, FileSourceId file_source_id, const char *source);
-
-  void merge(NodeId to_node_id, NodeId from_node_id);
-
-  template <class StorerT>
-  void store_file_source(FileSourceId file_source_id, StorerT &storer) const;
-
-  template <class ParserT>
-  FileSourceId parse_file_source(Td *td, ParserT &parser);
-
- private:
-  struct Destination {
-    NodeId node_id;
-    int64 generation{0};
-
-    Destination() = default;
-    Destination(NodeId node_id, int64 generation) : node_id(node_id), generation(generation) {
-    }
-    bool is_empty() const {
-      return node_id.empty();
-    }
-  };
-  struct Query {
-    std::vector<Promise<>> promises;
-    int32 active_queries{0};
-    Destination proxy;
-    int64 generation{0};
-  };
-
-  struct Node {
-    SetWithPosition<FileSourceId> file_source_ids;
-    unique_ptr<Query> query;
-    double last_successful_repair_time = -1e10;
-  };
-
-  struct FileSourceMessage {
-    MessageFullId message_full_id;
-  };
-  struct FileSourceUserPhoto {
-    int64 photo_id;
-    UserId user_id;
-  };
-  struct FileSourceChatPhoto {
-    ChatId chat_id;
-  };
-  struct FileSourceChannelPhoto {
-    ChannelId channel_id;
-  };
-  struct FileSourceWallpapers {
-    // empty
-  };
-  struct FileSourceWebPage {
-    string url;
-  };
-  struct FileSourceSavedAnimations {
-    // empty
-  };
-  struct FileSourceRecentStickers {
-    bool is_attached;
-  };
-  struct FileSourceFavoriteStickers {
-    // empty
-  };
-  struct FileSourceBackground {
-    BackgroundId background_id;
-    int64 access_hash;
-  };
-  struct FileSourceChatFull {
-    ChatId chat_id;
-  };
-  struct FileSourceChannelFull {
-    ChannelId channel_id;
-  };
-  struct FileSourceAppConfig {
-    // empty
-  };
-  struct FileSourceSavedRingtones {
-    // empty
-  };
-  struct FileSourceUserFull {
-    UserId user_id;
-  };
-  struct FileSourceAttachMenuBot {
-    UserId user_id;
-  };
-  struct FileSourceWebApp {
-    UserId user_id;
-    string short_name;
-  };
-  struct FileSourceStory {
-    StoryFullId story_full_id;
-  };
-  struct FileSourceQuickReplyMessage {
-    QuickReplyMessageFullId message_full_id;
-  };
-  struct FileSourceStarTransaction {
-    DialogId dialog_id;
-    string transaction_id;
-    bool is_refund;
-  };
-  struct FileSourceBotMediaPreview {
-    UserId bot_user_id;
-  };
-  struct FileSourceBotMediaPreviewInfo {
-    UserId bot_user_id;
-    string language_code;
-  };
-
-  // append only
-  using FileSource =
-      Variant<FileSourceMessage, FileSourceUserPhoto, FileSourceChatPhoto, FileSourceChannelPhoto, FileSourceWallpapers,
-              FileSourceWebPage, FileSourceSavedAnimations, FileSourceRecentStickers, FileSourceFavoriteStickers,
-              FileSourceBackground, FileSourceChatFull, FileSourceChannelFull, FileSourceAppConfig,
-              FileSourceSavedRingtones, FileSourceUserFull, FileSourceAttachMenuBot, FileSourceWebApp, FileSourceStory,
-              FileSourceQuickReplyMessage, FileSourceStarTransaction, FileSourceBotMediaPreview,
-              FileSourceBotMediaPreviewInfo>;
-  WaitFreeVector<FileSource> file_sources_;
-
-  int64 query_generation_{0};
-
-  WaitFreeHashMap<NodeId, unique_ptr<Node>, FileIdHash> nodes_;
-
-  ActorShared<> parent_;
-
-  Node &add_node(NodeId node_id);
-
-  void run_node(NodeId node);
-  void send_query(Destination dest, FileSourceId file_source_id);
-  Destination on_query_result(Destination dest, FileSourceId file_source_id, Status status, int32 sub = 0);
-
-  template <class T>
-  FileSourceId add_file_source_id(T &source, Slice source_str);
-
-  FileSourceId get_current_file_source_id() const;
-
-  void tear_down() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/FileReferenceManager.hpp b/third-party/td/td/td/telegram/FileReferenceManager.hpp
deleted file mode 100644
index 44fe387a54..0000000000
--- a/third-party/td/td/td/telegram/FileReferenceManager.hpp
+++ /dev/null
@@ -1,201 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/BackgroundManager.h"
-#include "td/telegram/BotInfoManager.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/NotificationSettingsManager.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/QuickReplyMessageFullId.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/WebAppManager.h"
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/utils/common.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void FileReferenceManager::store_file_source(FileSourceId file_source_id, StorerT &storer) const {
-  auto index = static_cast<size_t>(file_source_id.get()) - 1;
-  CHECK(index < file_sources_.size());
-  auto &source = file_sources_[index];
-  td::store(source.get_offset(), storer);
-  source.visit(overloaded([&](const FileSourceMessage &source) { td::store(source.message_full_id, storer); },
-                          [&](const FileSourceUserPhoto &source) {
-                            td::store(source.user_id, storer);
-                            td::store(source.photo_id, storer);
-                          },
-                          [&](const FileSourceChatPhoto &source) { td::store(source.chat_id, storer); },
-                          [&](const FileSourceChannelPhoto &source) { td::store(source.channel_id, storer); },
-                          [&](const FileSourceWallpapers &source) {},
-                          [&](const FileSourceWebPage &source) { td::store(source.url, storer); },
-                          [&](const FileSourceSavedAnimations &source) {},
-                          [&](const FileSourceRecentStickers &source) { td::store(source.is_attached, storer); },
-                          [&](const FileSourceFavoriteStickers &source) {},
-                          [&](const FileSourceBackground &source) {
-                            td::store(source.background_id, storer);
-                            td::store(source.access_hash, storer);
-                          },
-                          [&](const FileSourceChatFull &source) { td::store(source.chat_id, storer); },
-                          [&](const FileSourceChannelFull &source) { td::store(source.channel_id, storer); },
-                          [&](const FileSourceAppConfig &source) {}, [&](const FileSourceSavedRingtones &source) {},
-                          [&](const FileSourceUserFull &source) { td::store(source.user_id, storer); },
-                          [&](const FileSourceAttachMenuBot &source) { td::store(source.user_id, storer); },
-                          [&](const FileSourceWebApp &source) {
-                            td::store(source.user_id, storer);
-                            td::store(source.short_name, storer);
-                          },
-                          [&](const FileSourceStory &source) { td::store(source.story_full_id, storer); },
-                          [&](const FileSourceQuickReplyMessage &source) { td::store(source.message_full_id, storer); },
-                          [&](const FileSourceStarTransaction &source) {
-                            td::store(source.dialog_id, storer);
-                            td::store(source.transaction_id, storer);
-                            td::store(source.is_refund, storer);
-                          },
-                          [&](const FileSourceBotMediaPreview &source) { td::store(source.bot_user_id, storer); },
-                          [&](const FileSourceBotMediaPreviewInfo &source) {
-                            td::store(source.bot_user_id, storer);
-                            td::store(source.language_code, storer);
-                          }));
-}
-
-template <class ParserT>
-FileSourceId FileReferenceManager::parse_file_source(Td *td, ParserT &parser) {
-  auto type = parser.fetch_int();
-  switch (type) {
-    case 0: {
-      MessageFullId message_full_id;
-      td::parse(message_full_id, parser);
-      return td->messages_manager_->get_message_file_source_id(message_full_id);
-    }
-    case 1: {
-      UserId user_id;
-      int64 photo_id;
-      td::parse(user_id, parser);
-      td::parse(photo_id, parser);
-      return td->user_manager_->get_user_profile_photo_file_source_id(user_id, photo_id);
-    }
-    case 2: {
-      ChatId chat_id;
-      td::parse(chat_id, parser);
-      return FileSourceId();  // there is no need to repair chat photos
-    }
-    case 3: {
-      ChannelId channel_id;
-      td::parse(channel_id, parser);
-      return FileSourceId();  // there is no need to repair channel photos
-    }
-    case 4:
-      return FileSourceId();  // there is no way to repair old wallpapers
-    case 5: {
-      string url;
-      td::parse(url, parser);
-      return td->web_pages_manager_->get_url_file_source_id(url);
-    }
-    case 6:
-      return td->animations_manager_->get_saved_animations_file_source_id();
-    case 7: {
-      bool is_attached;
-      td::parse(is_attached, parser);
-      return td->stickers_manager_->get_recent_stickers_file_source_id(is_attached);
-    }
-    case 8:
-      return td->stickers_manager_->get_favorite_stickers_file_source_id();
-    case 9: {
-      BackgroundId background_id;
-      int64 access_hash;
-      td::parse(background_id, parser);
-      td::parse(access_hash, parser);
-      return td->background_manager_->get_background_file_source_id(background_id, access_hash);
-    }
-    case 10: {
-      ChatId chat_id;
-      td::parse(chat_id, parser);
-      return td->chat_manager_->get_chat_full_file_source_id(chat_id);
-    }
-    case 11: {
-      ChannelId channel_id;
-      td::parse(channel_id, parser);
-      return td->chat_manager_->get_channel_full_file_source_id(channel_id);
-    }
-    case 12:
-      return td->stickers_manager_->get_app_config_file_source_id();
-    case 13:
-      return td->notification_settings_manager_->get_saved_ringtones_file_source_id();
-    case 14: {
-      UserId user_id;
-      td::parse(user_id, parser);
-      return td->user_manager_->get_user_full_file_source_id(user_id);
-    }
-    case 15: {
-      UserId user_id;
-      td::parse(user_id, parser);
-      return td->attach_menu_manager_->get_attach_menu_bot_file_source_id(user_id);
-    }
-    case 16: {
-      UserId user_id;
-      string short_name;
-      td::parse(user_id, parser);
-      td::parse(short_name, parser);
-      return td->web_app_manager_->get_web_app_file_source_id(user_id, short_name);
-    }
-    case 17: {
-      StoryFullId story_full_id;
-      td::parse(story_full_id, parser);
-      return td->story_manager_->get_story_file_source_id(story_full_id);
-    }
-    case 18: {
-      QuickReplyMessageFullId message_full_id;
-      td::parse(message_full_id, parser);
-      return td->quick_reply_manager_->get_quick_reply_message_file_source_id(message_full_id);
-    }
-    case 19: {
-      DialogId dialog_id;
-      string transaction_id;
-      bool is_refund;
-      td::parse(dialog_id, parser);
-      td::parse(transaction_id, parser);
-      td::parse(is_refund, parser);
-      return td->star_manager_->get_star_transaction_file_source_id(dialog_id, transaction_id, is_refund);
-    }
-    case 20: {
-      UserId bot_user_id;
-      td::parse(bot_user_id, parser);
-      return td->bot_info_manager_->get_bot_media_preview_file_source_id(bot_user_id);
-    }
-    case 21: {
-      UserId bot_user_id;
-      string language_code;
-      td::parse(bot_user_id, parser);
-      td::parse(language_code, parser);
-      return td->bot_info_manager_->get_bot_media_preview_info_file_source_id(bot_user_id, language_code);
-    }
-    default:
-      parser.set_error("Invalid type in FileSource");
-      return FileSourceId();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/FolderId.h b/third-party/td/td/td/telegram/FolderId.h
deleted file mode 100644
index e18a28bcf9..0000000000
--- a/third-party/td/td/td/telegram/FolderId.h
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class FolderId {
-  int32 id = 0;
-
- public:
-  FolderId() = default;
-
-  explicit FolderId(int32 folder_id) : id(folder_id) {
-    if (id != 1) {
-      id = 0;
-    }
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  FolderId(T folder_id) = delete;
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const FolderId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const FolderId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_int();
-    if (id != 1) {
-      id = 0;
-    }
-  }
-
-  static FolderId main() {
-    return FolderId();
-  }
-  static FolderId archive() {
-    return FolderId(1);
-  }
-};
-
-struct FolderIdHash {
-  uint32 operator()(FolderId folder_id) const {
-    return Hash<int32>()(folder_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, FolderId folder_id) {
-  return string_builder << "folder " << folder_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopic.cpp b/third-party/td/td/td/telegram/ForumTopic.cpp
deleted file mode 100644
index 93520bff4d..0000000000
--- a/third-party/td/td/td/telegram/ForumTopic.cpp
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ForumTopic.h"
-
-#include "td/telegram/DraftMessage.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-ForumTopic::ForumTopic(Td *td, tl_object_ptr<telegram_api::ForumTopic> &&forum_topic_ptr,
-                       const DialogNotificationSettings *current_notification_settings) {
-  CHECK(forum_topic_ptr != nullptr);
-  if (forum_topic_ptr->get_id() != telegram_api::forumTopic::ID) {
-    LOG(INFO) << "Receive " << to_string(forum_topic_ptr);
-    return;
-  }
-
-  auto *forum_topic = static_cast<telegram_api::forumTopic *>(forum_topic_ptr.get());
-  is_short_ = forum_topic->short_;
-  is_pinned_ = forum_topic->pinned_;
-  notification_settings_ =
-      get_dialog_notification_settings(std::move(forum_topic->notify_settings_), current_notification_settings);
-  draft_message_ = get_draft_message(td, std::move(forum_topic->draft_));
-
-  if (is_short_) {
-    return;
-  }
-
-  last_message_id_ = MessageId(ServerMessageId(forum_topic->top_message_));
-  unread_count_ = forum_topic->unread_count_;
-  last_read_inbox_message_id_ = MessageId(ServerMessageId(forum_topic->read_inbox_max_id_));
-  last_read_outbox_message_id_ = MessageId(ServerMessageId(forum_topic->read_outbox_max_id_));
-  unread_mention_count_ = forum_topic->unread_mentions_count_;
-  unread_reaction_count_ = forum_topic->unread_reactions_count_;
-}
-
-bool ForumTopic::update_last_read_outbox_message_id(MessageId last_read_outbox_message_id) {
-  if (last_read_outbox_message_id <= last_read_outbox_message_id_) {
-    return false;
-  }
-  last_read_outbox_message_id_ = last_read_outbox_message_id;
-  return true;
-}
-
-bool ForumTopic::update_last_read_inbox_message_id(MessageId last_read_inbox_message_id, int32 unread_count) {
-  if (last_read_inbox_message_id <= last_read_inbox_message_id_) {
-    return false;
-  }
-  last_read_inbox_message_id_ = last_read_inbox_message_id;
-  if (unread_count >= 0) {
-    unread_count_ = unread_count;
-  }
-  return true;
-}
-
-td_api::object_ptr<td_api::forumTopic> ForumTopic::get_forum_topic_object(Td *td, DialogId dialog_id,
-                                                                          const ForumTopicInfo &info) const {
-  if (info.is_empty()) {
-    return nullptr;
-  }
-
-  // TODO draft_message = can_send_message(dialog_id, info_.get_top_thread_message_id()).is_ok() ? ... : nullptr;
-  auto last_message =
-      td->messages_manager_->get_message_object({dialog_id, last_message_id_}, "get_forum_topic_object");
-  auto draft_message = get_draft_message_object(td, draft_message_);
-  return td_api::make_object<td_api::forumTopic>(
-      info.get_forum_topic_info_object(td), std::move(last_message), is_pinned_, unread_count_,
-      last_read_inbox_message_id_.get(), last_read_outbox_message_id_.get(), unread_mention_count_,
-      unread_reaction_count_, get_chat_notification_settings_object(&notification_settings_), std::move(draft_message));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopic.h b/third-party/td/td/td/telegram/ForumTopic.h
deleted file mode 100644
index 421b12b75c..0000000000
--- a/third-party/td/td/td/telegram/ForumTopic.h
+++ /dev/null
@@ -1,75 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogNotificationSettings.h"
-#include "td/telegram/DraftMessage.h"
-#include "td/telegram/ForumTopicInfo.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Td;
-
-class ForumTopic {
-  bool is_short_ = false;
-  bool is_pinned_ = false;
-  int32 unread_count_ = 0;
-  MessageId last_message_id_;
-  MessageId last_read_inbox_message_id_;
-  MessageId last_read_outbox_message_id_;
-  int32 unread_mention_count_ = 0;
-  int32 unread_reaction_count_ = 0;
-  DialogNotificationSettings notification_settings_;
-  unique_ptr<DraftMessage> draft_message_;
-
- public:
-  ForumTopic() = default;
-
-  ForumTopic(Td *td, tl_object_ptr<telegram_api::ForumTopic> &&forum_topic_ptr,
-             const DialogNotificationSettings *current_notification_settings);
-
-  bool is_short() const {
-    return is_short_;
-  }
-
-  bool update_last_read_outbox_message_id(MessageId last_read_outbox_message_id);
-
-  bool update_last_read_inbox_message_id(MessageId last_read_inbox_message_id, int32 unread_count);
-
-  bool set_is_pinned(bool is_pinned) {
-    if (is_pinned_ == is_pinned) {
-      return false;
-    }
-    is_pinned_ = is_pinned;
-    return true;
-  }
-
-  DialogNotificationSettings *get_notification_settings() {
-    return &notification_settings_;
-  }
-
-  const DialogNotificationSettings *get_notification_settings() const {
-    return &notification_settings_;
-  }
-
-  td_api::object_ptr<td_api::forumTopic> get_forum_topic_object(Td *td, DialogId dialog_id,
-                                                                const ForumTopicInfo &info) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopic.hpp b/third-party/td/td/td/telegram/ForumTopic.hpp
deleted file mode 100644
index 2eb4512411..0000000000
--- a/third-party/td/td/td/telegram/ForumTopic.hpp
+++ /dev/null
@@ -1,106 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogNotificationSettings.hpp"
-#include "td/telegram/DraftMessage.hpp"
-#include "td/telegram/ForumTopic.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ForumTopic::store(StorerT &storer) const {
-  bool has_unread_count = unread_count_ != 0;
-  bool has_last_message_id = last_message_id_.is_valid();
-  bool has_last_read_inbox_message_id = last_read_inbox_message_id_.is_valid();
-  bool has_last_read_outbox_message_id = last_read_outbox_message_id_.is_valid();
-  bool has_unread_mention_count = unread_mention_count_ != 0;
-  bool has_unread_reaction_count = unread_reaction_count_ != 0;
-  bool has_draft_message = draft_message_ != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_short_);
-  STORE_FLAG(is_pinned_);
-  STORE_FLAG(has_unread_count);
-  STORE_FLAG(has_last_message_id);
-  STORE_FLAG(has_last_read_inbox_message_id);
-  STORE_FLAG(has_last_read_outbox_message_id);
-  STORE_FLAG(has_unread_mention_count);
-  STORE_FLAG(has_unread_reaction_count);
-  STORE_FLAG(has_draft_message);
-  END_STORE_FLAGS();
-  if (has_unread_count) {
-    td::store(unread_count_, storer);
-  }
-  if (has_last_message_id) {
-    td::store(last_message_id_, storer);
-  }
-  if (has_last_read_inbox_message_id) {
-    td::store(last_read_inbox_message_id_, storer);
-  }
-  if (has_last_read_outbox_message_id) {
-    td::store(last_read_outbox_message_id_, storer);
-  }
-  if (has_unread_mention_count) {
-    td::store(unread_mention_count_, storer);
-  }
-  if (has_unread_reaction_count) {
-    td::store(unread_reaction_count_, storer);
-  }
-  td::store(notification_settings_, storer);
-  if (has_draft_message) {
-    td::store(draft_message_, storer);
-  }
-}
-
-template <class ParserT>
-void ForumTopic::parse(ParserT &parser) {
-  bool has_unread_count;
-  bool has_last_message_id;
-  bool has_last_read_inbox_message_id;
-  bool has_last_read_outbox_message_id;
-  bool has_unread_mention_count;
-  bool has_unread_reaction_count;
-  bool has_draft_message;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_short_);
-  PARSE_FLAG(is_pinned_);
-  PARSE_FLAG(has_unread_count);
-  PARSE_FLAG(has_last_message_id);
-  PARSE_FLAG(has_last_read_inbox_message_id);
-  PARSE_FLAG(has_last_read_outbox_message_id);
-  PARSE_FLAG(has_unread_mention_count);
-  PARSE_FLAG(has_unread_reaction_count);
-  PARSE_FLAG(has_draft_message);
-  END_PARSE_FLAGS();
-  if (has_unread_count) {
-    td::parse(unread_count_, parser);
-  }
-  if (has_last_message_id) {
-    td::parse(last_message_id_, parser);
-  }
-  if (has_last_read_inbox_message_id) {
-    td::parse(last_read_inbox_message_id_, parser);
-  }
-  if (has_last_read_outbox_message_id) {
-    td::parse(last_read_outbox_message_id_, parser);
-  }
-  if (has_unread_mention_count) {
-    td::parse(unread_mention_count_, parser);
-  }
-  if (has_unread_reaction_count) {
-    td::parse(unread_reaction_count_, parser);
-  }
-  td::parse(notification_settings_, parser);
-  if (has_draft_message) {
-    td::parse(draft_message_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicEditedData.cpp b/third-party/td/td/td/telegram/ForumTopicEditedData.cpp
deleted file mode 100644
index 037d7115ad..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicEditedData.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ForumTopicEditedData.h"
-
-namespace td {
-
-td_api::object_ptr<td_api::MessageContent> ForumTopicEditedData::get_message_content_object() const {
-  if (edit_is_hidden_ && !(!is_hidden_ && edit_is_closed_ && !is_closed_)) {
-    return td_api::make_object<td_api::messageForumTopicIsHiddenToggled>(is_hidden_);
-  }
-  if (edit_is_closed_) {
-    return td_api::make_object<td_api::messageForumTopicIsClosedToggled>(is_closed_);
-  }
-  return td_api::make_object<td_api::messageForumTopicEdited>(title_, edit_icon_custom_emoji_id_,
-                                                              icon_custom_emoji_id_.get());
-}
-
-bool operator==(const ForumTopicEditedData &lhs, const ForumTopicEditedData &rhs) {
-  return lhs.title_ == rhs.title_ && lhs.icon_custom_emoji_id_ == rhs.icon_custom_emoji_id_ &&
-         lhs.edit_icon_custom_emoji_id_ == rhs.edit_icon_custom_emoji_id_ &&
-         lhs.edit_is_closed_ == rhs.edit_is_closed_ && lhs.is_closed_ == rhs.is_closed_ &&
-         lhs.edit_is_hidden_ == rhs.edit_is_hidden_ && lhs.is_hidden_ == rhs.is_hidden_;
-}
-
-bool operator!=(const ForumTopicEditedData &lhs, const ForumTopicEditedData &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicEditedData &topic_edited_data) {
-  if (!topic_edited_data.title_.empty()) {
-    string_builder << "set title to \"" << topic_edited_data.title_ << '"';
-  }
-  if (topic_edited_data.edit_icon_custom_emoji_id_) {
-    string_builder << "set icon to " << topic_edited_data.icon_custom_emoji_id_;
-  }
-  if (topic_edited_data.edit_is_closed_) {
-    string_builder << "set is_closed to " << topic_edited_data.is_closed_;
-  }
-  if (topic_edited_data.edit_is_hidden_) {
-    string_builder << "set is_hidden to " << topic_edited_data.is_hidden_;
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicEditedData.h b/third-party/td/td/td/telegram/ForumTopicEditedData.h
deleted file mode 100644
index 79a074de4b..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicEditedData.h
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ForumTopicEditedData {
-  string title_;
-  CustomEmojiId icon_custom_emoji_id_;
-  bool edit_icon_custom_emoji_id_ = false;
-  bool edit_is_closed_ = false;
-  bool is_closed_ = false;
-  bool edit_is_hidden_ = false;
-  bool is_hidden_ = false;
-
-  friend bool operator==(const ForumTopicEditedData &lhs, const ForumTopicEditedData &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicEditedData &topic_edited_data);
-
-  friend class ForumTopicInfo;
-
- public:
-  ForumTopicEditedData() = default;
-
-  ForumTopicEditedData(string &&title, bool edit_icon_custom_emoji_id, int64 icon_custom_emoji_id, bool edit_is_closed,
-                       bool is_closed, bool edit_is_hidden, bool is_hidden)
-      : title_(std::move(title))
-      , icon_custom_emoji_id_(icon_custom_emoji_id)
-      , edit_icon_custom_emoji_id_(edit_icon_custom_emoji_id)
-      , edit_is_closed_(edit_is_closed)
-      , is_closed_(is_closed)
-      , edit_is_hidden_(edit_is_hidden)
-      , is_hidden_(is_hidden) {
-  }
-
-  bool is_empty() const {
-    return title_.empty() && !edit_icon_custom_emoji_id_ && !edit_is_closed_ && !edit_is_hidden_;
-  }
-
-  const string &get_title() const {
-    return title_;
-  }
-
-  td_api::object_ptr<td_api::MessageContent> get_message_content_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ForumTopicEditedData &lhs, const ForumTopicEditedData &rhs);
-bool operator!=(const ForumTopicEditedData &lhs, const ForumTopicEditedData &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicEditedData &topic_edited_data);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicEditedData.hpp b/third-party/td/td/td/telegram/ForumTopicEditedData.hpp
deleted file mode 100644
index 455f3ec3cb..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicEditedData.hpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ForumTopicEditedData.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ForumTopicEditedData::store(StorerT &storer) const {
-  bool has_title = !title_.empty();
-  bool has_icon_custom_emoji_id = icon_custom_emoji_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(edit_icon_custom_emoji_id_);
-  STORE_FLAG(edit_is_closed_);
-  STORE_FLAG(is_closed_);
-  STORE_FLAG(has_title);
-  STORE_FLAG(has_icon_custom_emoji_id);
-  STORE_FLAG(is_hidden_);
-  END_STORE_FLAGS();
-  if (has_title) {
-    td::store(title_, storer);
-  }
-  if (has_icon_custom_emoji_id) {
-    td::store(icon_custom_emoji_id_, storer);
-  }
-}
-
-template <class ParserT>
-void ForumTopicEditedData::parse(ParserT &parser) {
-  bool has_title;
-  bool has_icon_custom_emoji_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(edit_icon_custom_emoji_id_);
-  PARSE_FLAG(edit_is_closed_);
-  PARSE_FLAG(is_closed_);
-  PARSE_FLAG(has_title);
-  PARSE_FLAG(has_icon_custom_emoji_id);
-  PARSE_FLAG(is_hidden_);
-  END_PARSE_FLAGS();
-  if (has_title) {
-    td::parse(title_, parser);
-  }
-  if (has_icon_custom_emoji_id) {
-    td::parse(icon_custom_emoji_id_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicIcon.cpp b/third-party/td/td/td/telegram/ForumTopicIcon.cpp
deleted file mode 100644
index 0d8b24eaf2..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicIcon.cpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ForumTopicIcon.h"
-
-namespace td {
-
-ForumTopicIcon::ForumTopicIcon(int32 color, int64 custom_emoji_id)
-    : color_(color & 0xFFFFFF), custom_emoji_id_(custom_emoji_id) {
-}
-
-bool ForumTopicIcon::edit_custom_emoji_id(CustomEmojiId custom_emoji_id) {
-  if (custom_emoji_id_ != custom_emoji_id) {
-    custom_emoji_id_ = custom_emoji_id;
-    return true;
-  }
-  return false;
-}
-
-td_api::object_ptr<td_api::forumTopicIcon> ForumTopicIcon::get_forum_topic_icon_object() const {
-  return td_api::make_object<td_api::forumTopicIcon>(color_, custom_emoji_id_.get());
-}
-
-bool operator==(const ForumTopicIcon &lhs, const ForumTopicIcon &rhs) {
-  return lhs.color_ == rhs.color_ && lhs.custom_emoji_id_ == rhs.custom_emoji_id_;
-}
-
-bool operator!=(const ForumTopicIcon &lhs, const ForumTopicIcon &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicIcon &topic_icon) {
-  string_builder << "icon color " << topic_icon.color_;
-  if (topic_icon.custom_emoji_id_.is_valid()) {
-    string_builder << " and " << topic_icon.custom_emoji_id_;
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicIcon.h b/third-party/td/td/td/telegram/ForumTopicIcon.h
deleted file mode 100644
index cf22421677..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicIcon.h
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ForumTopicIcon {
-  int32 color_ = 0x6FB9F0;
-  CustomEmojiId custom_emoji_id_;
-
-  friend bool operator==(const ForumTopicIcon &lhs, const ForumTopicIcon &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicIcon &topic_icon);
-
- public:
-  ForumTopicIcon() = default;
-  ForumTopicIcon(int32 color, int64 custom_emoji_id);
-
-  bool edit_custom_emoji_id(CustomEmojiId custom_emoji_id);
-
-  td_api::object_ptr<td_api::forumTopicIcon> get_forum_topic_icon_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ForumTopicIcon &lhs, const ForumTopicIcon &rhs);
-bool operator!=(const ForumTopicIcon &lhs, const ForumTopicIcon &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicIcon &topic_icon);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicIcon.hpp b/third-party/td/td/td/telegram/ForumTopicIcon.hpp
deleted file mode 100644
index b9a238462d..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicIcon.hpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ForumTopicIcon.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ForumTopicIcon::store(StorerT &storer) const {
-  bool has_custom_emoji_id = custom_emoji_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_custom_emoji_id);
-  END_STORE_FLAGS();
-  td::store(color_, storer);
-  if (has_custom_emoji_id) {
-    td::store(custom_emoji_id_, storer);
-  }
-}
-
-template <class ParserT>
-void ForumTopicIcon::parse(ParserT &parser) {
-  bool has_custom_emoji_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_custom_emoji_id);
-  END_PARSE_FLAGS();
-  td::parse(color_, parser);
-  if (has_custom_emoji_id) {
-    td::parse(custom_emoji_id_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicInfo.cpp b/third-party/td/td/td/telegram/ForumTopicInfo.cpp
deleted file mode 100644
index 006f53d1af..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicInfo.cpp
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ForumTopicInfo.h"
-
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-ForumTopicInfo::ForumTopicInfo(Td *td, const tl_object_ptr<telegram_api::ForumTopic> &forum_topic_ptr) {
-  CHECK(forum_topic_ptr != nullptr);
-  if (forum_topic_ptr->get_id() != telegram_api::forumTopic::ID) {
-    LOG(ERROR) << "Receive " << to_string(forum_topic_ptr);
-    return;
-  }
-  const auto *forum_topic = static_cast<const telegram_api::forumTopic *>(forum_topic_ptr.get());
-
-  top_thread_message_id_ = MessageId(ServerMessageId(forum_topic->id_));
-  title_ = forum_topic->title_;
-  icon_ = ForumTopicIcon(forum_topic->icon_color_, forum_topic->icon_emoji_id_);
-  creation_date_ = forum_topic->date_;
-  creator_dialog_id_ = DialogId(forum_topic->from_id_);
-  if (creator_dialog_id_.is_valid() && creator_dialog_id_.get_type() != DialogType::User) {
-    td->dialog_manager_->force_create_dialog(creator_dialog_id_, "ForumTopicInfo", true);
-  }
-  is_outgoing_ = forum_topic->my_;
-  is_closed_ = forum_topic->closed_;
-  is_hidden_ = forum_topic->hidden_;
-
-  if (creation_date_ <= 0 || !top_thread_message_id_.is_valid() || !creator_dialog_id_.is_valid()) {
-    LOG(ERROR) << "Receive " << to_string(forum_topic_ptr);
-    *this = ForumTopicInfo();
-  }
-}
-
-bool ForumTopicInfo::apply_edited_data(const ForumTopicEditedData &edited_data) {
-  bool is_changed = false;
-  if (!edited_data.title_.empty() && edited_data.title_ != title_) {
-    title_ = edited_data.title_;
-    is_changed = true;
-  }
-  if (edited_data.edit_icon_custom_emoji_id_ && icon_.edit_custom_emoji_id(edited_data.icon_custom_emoji_id_)) {
-    is_changed = true;
-  }
-  if (edited_data.edit_is_closed_ && edited_data.is_closed_ != is_closed_) {
-    is_closed_ = edited_data.is_closed_;
-    is_changed = true;
-  }
-  if (edited_data.edit_is_hidden_ && edited_data.is_hidden_ != is_hidden_) {
-    is_hidden_ = edited_data.is_hidden_;
-    is_changed = true;
-  }
-  return is_changed;
-}
-
-td_api::object_ptr<td_api::forumTopicInfo> ForumTopicInfo::get_forum_topic_info_object(Td *td) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-
-  auto creator_id = get_message_sender_object_const(td, creator_dialog_id_, "get_forum_topic_info_object");
-  return td_api::make_object<td_api::forumTopicInfo>(
-      top_thread_message_id_.get(), title_, icon_.get_forum_topic_icon_object(), creation_date_, std::move(creator_id),
-      top_thread_message_id_ == MessageId(ServerMessageId(1)), is_outgoing_, is_closed_, is_hidden_);
-}
-
-bool operator==(const ForumTopicInfo &lhs, const ForumTopicInfo &rhs) {
-  return lhs.top_thread_message_id_ == rhs.top_thread_message_id_ && lhs.title_ == rhs.title_ &&
-         lhs.icon_ == rhs.icon_ && lhs.creation_date_ == rhs.creation_date_ &&
-         lhs.creator_dialog_id_ == rhs.creator_dialog_id_ && lhs.is_outgoing_ == rhs.is_outgoing_ &&
-         lhs.is_closed_ == rhs.is_closed_ && lhs.is_hidden_ == rhs.is_hidden_;
-}
-
-bool operator!=(const ForumTopicInfo &lhs, const ForumTopicInfo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicInfo &topic_info) {
-  return string_builder << "Forum topic " << topic_info.top_thread_message_id_.get() << '/' << topic_info.title_
-                        << " by " << topic_info.creator_dialog_id_ << " with " << topic_info.icon_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicInfo.h b/third-party/td/td/td/telegram/ForumTopicInfo.h
deleted file mode 100644
index 3573ec5922..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicInfo.h
+++ /dev/null
@@ -1,95 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/ForumTopicEditedData.h"
-#include "td/telegram/ForumTopicIcon.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class ForumTopicInfo {
-  MessageId top_thread_message_id_;
-  string title_;
-  ForumTopicIcon icon_;
-  int32 creation_date_ = 0;
-  DialogId creator_dialog_id_;
-  bool is_outgoing_ = false;
-  bool is_closed_ = false;
-  bool is_hidden_ = false;
-
-  friend bool operator==(const ForumTopicInfo &lhs, const ForumTopicInfo &rhs);
-  friend bool operator!=(const ForumTopicInfo &lhs, const ForumTopicInfo &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicInfo &topic_info);
-
- public:
-  ForumTopicInfo() = default;
-
-  ForumTopicInfo(Td *td, const tl_object_ptr<telegram_api::ForumTopic> &forum_topic_ptr);
-
-  ForumTopicInfo(MessageId top_thread_message_id, string title, ForumTopicIcon icon, int32 creation_date,
-                 DialogId creator_dialog_id, bool is_outgoing, bool is_closed, bool is_hidden)
-      : top_thread_message_id_(top_thread_message_id)
-      , title_(std::move(title))
-      , icon_(std::move(icon))
-      , creation_date_(creation_date)
-      , creator_dialog_id_(creator_dialog_id)
-      , is_outgoing_(is_outgoing)
-      , is_closed_(is_closed)
-      , is_hidden_(is_hidden) {
-  }
-
-  bool is_empty() const {
-    return !top_thread_message_id_.is_valid();
-  }
-
-  MessageId get_top_thread_message_id() const {
-    return top_thread_message_id_;
-  }
-
-  DialogId get_creator_dialog_id() const {
-    return creator_dialog_id_;
-  }
-
-  bool is_outgoing() const {
-    return is_outgoing_;
-  }
-
-  bool is_closed() const {
-    return is_closed_;
-  }
-
-  bool is_hidden() const {
-    return is_hidden_;
-  }
-
-  bool apply_edited_data(const ForumTopicEditedData &edited_data);
-
-  td_api::object_ptr<td_api::forumTopicInfo> get_forum_topic_info_object(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ForumTopicInfo &lhs, const ForumTopicInfo &rhs);
-bool operator!=(const ForumTopicInfo &lhs, const ForumTopicInfo &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ForumTopicInfo &topic_info);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicInfo.hpp b/third-party/td/td/td/telegram/ForumTopicInfo.hpp
deleted file mode 100644
index 3844784999..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicInfo.hpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ForumTopicInfo.h"
-
-#include "td/telegram/ForumTopicIcon.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ForumTopicInfo::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_outgoing_);
-  STORE_FLAG(is_closed_);
-  STORE_FLAG(is_hidden_);
-  END_STORE_FLAGS();
-  td::store(top_thread_message_id_, storer);
-  td::store(title_, storer);
-  td::store(icon_, storer);
-  td::store(creation_date_, storer);
-  td::store(creator_dialog_id_, storer);
-}
-
-template <class ParserT>
-void ForumTopicInfo::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_outgoing_);
-  PARSE_FLAG(is_closed_);
-  PARSE_FLAG(is_hidden_);
-  END_PARSE_FLAGS();
-  td::parse(top_thread_message_id_, parser);
-  td::parse(title_, parser);
-  td::parse(icon_, parser);
-  td::parse(creation_date_, parser);
-  td::parse(creator_dialog_id_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicManager.cpp b/third-party/td/td/td/telegram/ForumTopicManager.cpp
deleted file mode 100644
index b45d39470d..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicManager.cpp
+++ /dev/null
@@ -1,1231 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ForumTopicManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/ForumTopic.h"
-#include "td/telegram/ForumTopic.hpp"
-#include "td/telegram/ForumTopicIcon.h"
-#include "td/telegram/ForumTopicInfo.hpp"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/MessageThreadDb.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/NotificationSettingsManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class CreateForumTopicQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::forumTopicInfo>> promise_;
-  ChannelId channel_id_;
-  DialogId creator_dialog_id_;
-  int64 random_id_;
-
- public:
-  explicit CreateForumTopicQuery(Promise<td_api::object_ptr<td_api::forumTopicInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const string &title, int32 icon_color, CustomEmojiId icon_custom_emoji_id,
-            DialogId as_dialog_id) {
-    channel_id_ = channel_id;
-    creator_dialog_id_ = td_->dialog_manager_->get_my_dialog_id();
-
-    int32 flags = 0;
-    if (icon_color != -1) {
-      flags |= telegram_api::channels_createForumTopic::ICON_COLOR_MASK;
-    }
-    if (icon_custom_emoji_id.is_valid()) {
-      flags |= telegram_api::channels_createForumTopic::ICON_EMOJI_ID_MASK;
-    }
-    tl_object_ptr<telegram_api::InputPeer> as_input_peer;
-    if (as_dialog_id.is_valid()) {
-      as_input_peer = td_->dialog_manager_->get_input_peer(as_dialog_id, AccessRights::Write);
-      if (as_input_peer != nullptr) {
-        flags |= telegram_api::channels_createForumTopic::SEND_AS_MASK;
-        creator_dialog_id_ = as_dialog_id;
-      }
-    }
-
-    do {
-      random_id_ = Random::secure_int64();
-    } while (random_id_ == 0);
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_createForumTopic(flags, std::move(input_channel), title, icon_color,
-                                                icon_custom_emoji_id.get(), random_id_, std::move(as_input_peer)),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_createForumTopic>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CreateForumTopicQuery: " << to_string(ptr);
-    auto message = UpdatesManager::get_message_by_random_id(ptr.get(), DialogId(channel_id_), random_id_);
-    if (message == nullptr || message->get_id() != telegram_api::messageService::ID) {
-      LOG(ERROR) << "Receive invalid result for CreateForumTopicQuery: " << to_string(ptr);
-      return promise_.set_error(Status::Error(400, "Invalid result received"));
-    }
-    auto service_message = static_cast<const telegram_api::messageService *>(message);
-    if (service_message->action_->get_id() != telegram_api::messageActionTopicCreate::ID) {
-      LOG(ERROR) << "Receive invalid result for CreateForumTopicQuery: " << to_string(ptr);
-      return promise_.set_error(Status::Error(400, "Invalid result received"));
-    }
-
-    auto action = static_cast<const telegram_api::messageActionTopicCreate *>(service_message->action_.get());
-    auto forum_topic_info =
-        td::make_unique<ForumTopicInfo>(MessageId(ServerMessageId(service_message->id_)), action->title_,
-                                        ForumTopicIcon(action->icon_color_, action->icon_emoji_id_),
-                                        service_message->date_, creator_dialog_id_, true, false, false);
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr),
-        PromiseCreator::lambda([dialog_id = DialogId(channel_id_), forum_topic_info = std::move(forum_topic_info),
-                                promise = std::move(promise_)](Unit result) mutable {
-          send_closure(G()->forum_topic_manager(), &ForumTopicManager::on_forum_topic_created, dialog_id,
-                       std::move(forum_topic_info), std::move(promise));
-        }));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "CreateForumTopicQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditForumTopicQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  MessageId top_thread_message_id_;
-
- public:
-  explicit EditForumTopicQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, MessageId top_thread_message_id, bool edit_title, const string &title,
-            bool edit_custom_emoji_id, CustomEmojiId icon_custom_emoji_id) {
-    channel_id_ = channel_id;
-    top_thread_message_id_ = top_thread_message_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    int32 flags = 0;
-    if (edit_title) {
-      flags |= telegram_api::channels_editForumTopic::TITLE_MASK;
-    }
-    if (edit_custom_emoji_id) {
-      flags |= telegram_api::channels_editForumTopic::ICON_EMOJI_ID_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_editForumTopic(flags, std::move(input_channel),
-                                              top_thread_message_id_.get_server_message_id().get(), title,
-                                              icon_custom_emoji_id.get(), false, false),
-        {{channel_id}}));
-  }
-
-  void send(ChannelId channel_id, MessageId top_thread_message_id, bool is_closed) {
-    channel_id_ = channel_id;
-    top_thread_message_id_ = top_thread_message_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    int32 flags = telegram_api::channels_editForumTopic::CLOSED_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_editForumTopic(flags, std::move(input_channel),
-                                              top_thread_message_id_.get_server_message_id().get(), string(), 0,
-                                              is_closed, false),
-        {{channel_id}}));
-  }
-
-  void send(ChannelId channel_id, bool is_hidden) {
-    channel_id_ = channel_id;
-    top_thread_message_id_ = MessageId(ServerMessageId(1));
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    int32 flags = telegram_api::channels_editForumTopic::HIDDEN_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_editForumTopic(flags, std::move(input_channel),
-                                              top_thread_message_id_.get_server_message_id().get(), string(), 0, false,
-                                              is_hidden),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_editForumTopic>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditForumTopicQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "TOPIC_NOT_MODIFIED" && !td_->auth_manager_->is_bot()) {
-      return promise_.set_value(Unit());
-    }
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "EditForumTopicQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdatePinnedForumTopicQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit UpdatePinnedForumTopicQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, MessageId top_thread_message_id, bool is_pinned) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_updatePinnedForumTopic(std::move(input_channel),
-                                                      top_thread_message_id.get_server_message_id().get(), is_pinned),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_updatePinnedForumTopic>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UpdatePinnedForumTopicQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "PINNED_TOPIC_NOT_MODIFIED" && !td_->auth_manager_->is_bot()) {
-      return promise_.set_value(Unit());
-    }
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "UpdatePinnedForumTopicQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderPinnedForumTopicsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ReorderPinnedForumTopicsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const vector<MessageId> &top_thread_message_ids) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_reorderPinnedForumTopics(0, true, std::move(input_channel),
-                                                        MessageId::get_server_message_ids(top_thread_message_ids)),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_reorderPinnedForumTopics>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ReorderPinnedForumTopicsQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "PINNED_TOPICS_NOT_MODIFIED" && !td_->auth_manager_->is_bot()) {
-      return promise_.set_value(Unit());
-    }
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "ReorderPinnedForumTopicsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetForumTopicQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::forumTopic>> promise_;
-  ChannelId channel_id_;
-  MessageId top_thread_message_id_;
-
- public:
-  explicit GetForumTopicQuery(Promise<td_api::object_ptr<td_api::forumTopic>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, MessageId top_thread_message_id) {
-    channel_id_ = channel_id;
-    top_thread_message_id_ = top_thread_message_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_getForumTopicsByID(std::move(input_channel),
-                                                  {top_thread_message_id_.get_server_message_id().get()}),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getForumTopicsByID>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetForumTopicQuery: " << to_string(ptr);
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetForumTopicQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetForumTopicQuery");
-
-    if (ptr->topics_.size() != 1u) {
-      return promise_.set_value(nullptr);
-    }
-
-    MessagesInfo messages_info;
-    messages_info.messages = std::move(ptr->messages_);
-    messages_info.total_count = ptr->count_;
-    messages_info.is_channel_messages = true;
-
-    td_->messages_manager_->get_channel_difference_if_needed(
-        DialogId(channel_id_), std::move(messages_info),
-        PromiseCreator::lambda([actor_id = td_->forum_topic_manager_actor_.get(), channel_id = channel_id_,
-                                top_thread_message_id = top_thread_message_id_, topic = std::move(ptr->topics_[0]),
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &ForumTopicManager::on_get_forum_topic, channel_id, top_thread_message_id,
-                         std::move(info), std::move(topic), std::move(promise));
-          }
-        }),
-        "GetForumTopicQuery");
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetForumTopicQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetForumTopicsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::forumTopics>> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetForumTopicsQuery(Promise<td_api::object_ptr<td_api::forumTopics>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, const string &query, int32 offset_date, MessageId offset_message_id,
-            MessageId offset_top_thread_message_id, int32 limit) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    int32 flags = 0;
-    if (!query.empty()) {
-      flags |= telegram_api::channels_getForumTopics::Q_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_getForumTopics(flags, std::move(input_channel), query, offset_date,
-                                              offset_message_id.get_server_message_id().get(),
-                                              offset_top_thread_message_id.get_server_message_id().get(), limit),
-        {{channel_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getForumTopics>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetForumTopicsQuery: " << to_string(ptr);
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetForumTopicsQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetForumTopicsQuery");
-
-    MessagesInfo messages_info;
-    messages_info.messages = std::move(ptr->messages_);
-    messages_info.total_count = ptr->count_;
-    messages_info.is_channel_messages = true;
-
-    // ignore ptr->pts_
-    td_->messages_manager_->get_channel_difference_if_needed(
-        DialogId(channel_id_), std::move(messages_info),
-        PromiseCreator::lambda([actor_id = td_->forum_topic_manager_actor_.get(), channel_id = channel_id_,
-                                order_by_creation_date = ptr->order_by_create_date_, topics = std::move(ptr->topics_),
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &ForumTopicManager::on_get_forum_topics, channel_id, order_by_creation_date,
-                         std::move(info), std::move(topics), std::move(promise));
-          }
-        }),
-        "GetForumTopicsQuery");
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetForumTopicsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadForumTopicQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-
- public:
-  void send(DialogId dialog_id, MessageId top_thread_message_id, MessageId max_message_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_readDiscussion(std::move(input_peer),
-                                              top_thread_message_id.get_server_message_id().get(),
-                                              max_message_id.get_server_message_id().get()),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_readDiscussion>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReadForumTopicQuery");
-  }
-};
-
-template <class StorerT>
-void ForumTopicManager::Topic::store(StorerT &storer) const {
-  CHECK(info_ != nullptr);
-  using td::store;
-
-  store(MAGIC, storer);
-
-  bool has_topic = topic_ != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_topic);
-  END_STORE_FLAGS();
-  store(info_, storer);
-  if (has_topic) {
-    store(topic_, storer);
-  }
-}
-
-template <class ParserT>
-void ForumTopicManager::Topic::parse(ParserT &parser) {
-  CHECK(info_ != nullptr);
-  using td::parse;
-
-  int32 magic;
-  parse(magic, parser);
-  if (magic != MAGIC) {
-    return parser.set_error("Invalid magic");
-  }
-
-  bool has_topic;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_topic);
-  END_PARSE_FLAGS();
-  parse(info_, parser);
-  if (has_topic) {
-    parse(topic_, parser);
-  }
-}
-
-ForumTopicManager::ForumTopicManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-ForumTopicManager::~ForumTopicManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), dialog_topics_);
-}
-
-void ForumTopicManager::tear_down() {
-  parent_.reset();
-}
-
-void ForumTopicManager::create_forum_topic(DialogId dialog_id, string &&title,
-                                           td_api::object_ptr<td_api::forumTopicIcon> &&icon,
-                                           Promise<td_api::object_ptr<td_api::forumTopicInfo>> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_create_topics()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to create a topic"));
-  }
-
-  auto new_title = clean_name(std::move(title), MAX_FORUM_TOPIC_TITLE_LENGTH);
-  if (new_title.empty()) {
-    return promise.set_error(Status::Error(400, "Title must be non-empty"));
-  }
-
-  int32 icon_color = -1;
-  CustomEmojiId icon_custom_emoji_id;
-  if (icon != nullptr) {
-    icon_color = icon->color_;
-    if (icon_color < 0 || icon_color > 0xFFFFFF) {
-      return promise.set_error(Status::Error(400, "Invalid icon color specified"));
-    }
-    icon_custom_emoji_id = CustomEmojiId(icon->custom_emoji_id_);
-  }
-
-  DialogId as_dialog_id = td_->messages_manager_->get_dialog_default_send_message_as_dialog_id(dialog_id);
-
-  td_->create_handler<CreateForumTopicQuery>(std::move(promise))
-      ->send(channel_id, new_title, icon_color, icon_custom_emoji_id, as_dialog_id);
-}
-
-void ForumTopicManager::on_forum_topic_created(DialogId dialog_id, unique_ptr<ForumTopicInfo> &&forum_topic_info,
-                                               Promise<td_api::object_ptr<td_api::forumTopicInfo>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  CHECK(forum_topic_info != nullptr);
-  MessageId top_thread_message_id = forum_topic_info->get_top_thread_message_id();
-  auto topic = add_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr) {
-    return promise.set_value(forum_topic_info->get_forum_topic_info_object(td_));
-  }
-  if (topic->info_ == nullptr) {
-    set_topic_info(dialog_id, topic, std::move(forum_topic_info));
-  }
-  save_topic_to_database(dialog_id, topic);
-  promise.set_value(topic->info_->get_forum_topic_info_object(td_));
-}
-
-void ForumTopicManager::edit_forum_topic(DialogId dialog_id, MessageId top_thread_message_id, string &&title,
-                                         bool edit_icon_custom_emoji, CustomEmojiId icon_custom_emoji_id,
-                                         Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  TRY_STATUS_PROMISE(promise, can_be_message_thread_id(top_thread_message_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_edit_topics()) {
-    auto topic_info = get_topic_info(dialog_id, top_thread_message_id);
-    if (topic_info != nullptr && !topic_info->is_outgoing()) {
-      return promise.set_error(Status::Error(400, "Not enough rights to edit the topic"));
-    }
-  }
-
-  bool edit_title = !title.empty();
-  auto new_title = clean_name(std::move(title), MAX_FORUM_TOPIC_TITLE_LENGTH);
-  if (edit_title && new_title.empty()) {
-    return promise.set_error(Status::Error(400, "Title must be non-empty"));
-  }
-  if (!edit_title && !edit_icon_custom_emoji) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<EditForumTopicQuery>(std::move(promise))
-      ->send(channel_id, top_thread_message_id, edit_title, new_title, edit_icon_custom_emoji, icon_custom_emoji_id);
-}
-
-void ForumTopicManager::read_forum_topic_messages(DialogId dialog_id, MessageId top_thread_message_id,
-                                                  MessageId last_read_inbox_message_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr || topic->topic_ == nullptr) {
-    return;
-  }
-
-  if (topic->topic_->update_last_read_inbox_message_id(last_read_inbox_message_id, -1)) {
-    // TODO send updates
-    auto max_message_id = last_read_inbox_message_id.get_prev_server_message_id();
-    LOG(INFO) << "Send read topic history request in topic of " << top_thread_message_id << " in " << dialog_id
-              << " up to " << max_message_id;
-    td_->create_handler<ReadForumTopicQuery>()->send(dialog_id, top_thread_message_id, max_message_id);
-  }
-}
-
-void ForumTopicManager::on_update_forum_topic_unread(DialogId dialog_id, MessageId top_thread_message_id,
-                                                     MessageId last_message_id, MessageId last_read_inbox_message_id,
-                                                     MessageId last_read_outbox_message_id, int32 unread_count) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr || topic->topic_ == nullptr) {
-    return;
-  }
-
-  if (topic->topic_->update_last_read_outbox_message_id(last_read_outbox_message_id)) {
-    // TODO send updates
-  }
-  if (topic->topic_->update_last_read_inbox_message_id(last_read_inbox_message_id, unread_count)) {
-    // TODO send updates
-  }
-}
-
-DialogNotificationSettings *ForumTopicManager::get_forum_topic_notification_settings(DialogId dialog_id,
-                                                                                     MessageId top_thread_message_id) {
-  auto topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr || topic->topic_ == nullptr) {
-    return nullptr;
-  }
-  return topic->topic_->get_notification_settings();
-}
-
-const DialogNotificationSettings *ForumTopicManager::get_forum_topic_notification_settings(
-    DialogId dialog_id, MessageId top_thread_message_id) const {
-  auto topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr || topic->topic_ == nullptr) {
-    return nullptr;
-  }
-  return topic->topic_->get_notification_settings();
-}
-
-void ForumTopicManager::on_update_forum_topic_notify_settings(
-    DialogId dialog_id, MessageId top_thread_message_id,
-    tl_object_ptr<telegram_api::peerNotifySettings> &&peer_notify_settings, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  VLOG(notifications) << "Receive notification settings for topic of " << top_thread_message_id << " in " << dialog_id
-                      << " from " << source << ": " << to_string(peer_notify_settings);
-
-  DialogNotificationSettings *current_settings =
-      get_forum_topic_notification_settings(dialog_id, top_thread_message_id);
-  if (current_settings == nullptr) {
-    return;
-  }
-
-  auto notification_settings = get_dialog_notification_settings(std::move(peer_notify_settings), current_settings);
-  if (!notification_settings.is_synchronized) {
-    return;
-  }
-
-  update_forum_topic_notification_settings(dialog_id, top_thread_message_id, current_settings,
-                                           std::move(notification_settings));
-}
-
-void ForumTopicManager::on_update_forum_topic_is_pinned(DialogId dialog_id, MessageId top_thread_message_id,
-                                                        bool is_pinned) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "on_update_forum_topic_is_pinned")) {
-    return;
-  }
-  if (!can_be_forum(dialog_id)) {
-    LOG(ERROR) << "Receive pinned topics in " << dialog_id;
-    return;
-  }
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr || topic->topic_ == nullptr) {
-    return;
-  }
-  if (topic->topic_->set_is_pinned(is_pinned)) {
-    topic->need_save_to_database_ = true;
-    save_topic_to_database(dialog_id, topic);
-  }
-}
-
-void ForumTopicManager::on_update_pinned_forum_topics(DialogId dialog_id, vector<MessageId> top_thread_message_ids) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "on_update_pinned_forum_topics")) {
-    return;
-  }
-  if (!can_be_forum(dialog_id)) {
-    LOG(ERROR) << "Receive pinned topics in " << dialog_id;
-    return;
-  }
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto dialog_topics = get_dialog_topics(dialog_id);
-  if (dialog_topics == nullptr) {
-    return;
-  }
-
-  dialog_topics->topics_.foreach([&](const MessageId &top_thread_message_id, unique_ptr<Topic> &topic) {
-    if (topic->topic_ == nullptr) {
-      return;
-    }
-    if (topic->topic_->set_is_pinned(contains(top_thread_message_ids, top_thread_message_id))) {
-      topic->need_save_to_database_ = true;
-      save_topic_to_database(dialog_id, topic.get());
-    }
-  });
-}
-
-Status ForumTopicManager::set_forum_topic_notification_settings(
-    DialogId dialog_id, MessageId top_thread_message_id,
-    tl_object_ptr<td_api::chatNotificationSettings> &&notification_settings) {
-  CHECK(!td_->auth_manager_->is_bot());
-  TRY_STATUS(is_forum(dialog_id));
-  TRY_STATUS(can_be_message_thread_id(top_thread_message_id));
-  auto current_settings = get_forum_topic_notification_settings(dialog_id, top_thread_message_id);
-  if (current_settings == nullptr) {
-    return Status::Error(400, "Unknown forum topic identifier specified");
-  }
-
-  TRY_RESULT(new_settings, get_dialog_notification_settings(std::move(notification_settings), current_settings));
-  if (update_forum_topic_notification_settings(dialog_id, top_thread_message_id, current_settings,
-                                               std::move(new_settings))) {
-    // TODO log event
-    td_->notification_settings_manager_->update_dialog_notify_settings(dialog_id, top_thread_message_id,
-                                                                       *current_settings, Promise<Unit>());
-  }
-  return Status::OK();
-}
-
-bool ForumTopicManager::update_forum_topic_notification_settings(DialogId dialog_id, MessageId top_thread_message_id,
-                                                                 DialogNotificationSettings *current_settings,
-                                                                 DialogNotificationSettings &&new_settings) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return false;
-  }
-
-  auto need_update = need_update_dialog_notification_settings(current_settings, new_settings);
-  if (need_update.are_changed) {
-    // TODO update unmute timeouts, td_api updates, remove notifications
-    *current_settings = std::move(new_settings);
-
-    auto topic = get_topic(dialog_id, top_thread_message_id);
-    CHECK(topic != nullptr);
-    topic->need_save_to_database_ = true;
-    save_topic_to_database(dialog_id, topic);
-  }
-  return need_update.need_update_server;
-}
-
-void ForumTopicManager::get_forum_topic(DialogId dialog_id, MessageId top_thread_message_id,
-                                        Promise<td_api::object_ptr<td_api::forumTopic>> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  TRY_STATUS_PROMISE(promise, can_be_message_thread_id(top_thread_message_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  td_->create_handler<GetForumTopicQuery>(std::move(promise))->send(channel_id, top_thread_message_id);
-}
-
-void ForumTopicManager::on_get_forum_topic(ChannelId channel_id, MessageId expected_top_thread_message_id,
-                                           MessagesInfo &&info,
-                                           telegram_api::object_ptr<telegram_api::ForumTopic> &&topic,
-                                           Promise<td_api::object_ptr<td_api::forumTopic>> &&promise) {
-  DialogId dialog_id(channel_id);
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  td_->messages_manager_->on_get_messages(std::move(info.messages), true, false, Promise<Unit>(), "on_get_forum_topic");
-
-  auto top_thread_message_id = on_get_forum_topic_impl(dialog_id, std::move(topic));
-  if (!top_thread_message_id.is_valid()) {
-    return promise.set_value(nullptr);
-  }
-  if (top_thread_message_id != expected_top_thread_message_id) {
-    return promise.set_error(Status::Error(500, "Wrong forum topic received"));
-  }
-  promise.set_value(get_forum_topic_object(dialog_id, top_thread_message_id));
-}
-
-void ForumTopicManager::get_forum_topic_link(DialogId dialog_id, MessageId top_thread_message_id,
-                                             Promise<td_api::object_ptr<td_api::messageLink>> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  TRY_STATUS_PROMISE(promise, can_be_message_thread_id(top_thread_message_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  SliceBuilder sb;
-  sb << LinkManager::get_t_me_url();
-
-  bool is_public = false;
-  auto dialog_username = td_->chat_manager_->get_channel_first_username(channel_id);
-  if (!dialog_username.empty()) {
-    sb << dialog_username;
-    is_public = true;
-  } else {
-    sb << "c/" << channel_id.get();
-  }
-  sb << '/' << top_thread_message_id.get_server_message_id().get();
-
-  promise.set_value(td_api::make_object<td_api::messageLink>(sb.as_cslice().str(), is_public));
-}
-
-void ForumTopicManager::get_forum_topics(DialogId dialog_id, string query, int32 offset_date,
-                                         MessageId offset_message_id, MessageId offset_top_thread_message_id,
-                                         int32 limit, Promise<td_api::object_ptr<td_api::forumTopics>> promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  if (offset_date < 0) {
-    return promise.set_error(Status::Error(400, "Invalid offset date specified"));
-  }
-  if (offset_message_id != MessageId() && !offset_message_id.is_valid() && !offset_message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Invalid offset message identifier specified"));
-  }
-  if (offset_top_thread_message_id != MessageId()) {
-    TRY_STATUS_PROMISE(promise, can_be_message_thread_id(offset_top_thread_message_id));
-  }
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Invalid limit specified"));
-  }
-  td_->create_handler<GetForumTopicsQuery>(std::move(promise))
-      ->send(channel_id, query, offset_date, offset_message_id, offset_top_thread_message_id, limit);
-}
-
-void ForumTopicManager::on_get_forum_topics(ChannelId channel_id, bool order_by_creation_date, MessagesInfo &&info,
-                                            vector<telegram_api::object_ptr<telegram_api::ForumTopic>> &&topics,
-                                            Promise<td_api::object_ptr<td_api::forumTopics>> &&promise) {
-  DialogId dialog_id(channel_id);
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  td_->messages_manager_->on_get_messages(std::move(info.messages), true, false, Promise<Unit>(),
-                                          "on_get_forum_topics");
-  vector<td_api::object_ptr<td_api::forumTopic>> forum_topics;
-  int32 next_offset_date = 0;
-  MessageId next_offset_message_id;
-  MessageId next_offset_top_thread_message_id;
-  for (auto &topic : topics) {
-    auto top_thread_message_id = on_get_forum_topic_impl(dialog_id, std::move(topic));
-    if (!top_thread_message_id.is_valid()) {
-      continue;
-    }
-    auto forum_topic_object = get_forum_topic_object(dialog_id, top_thread_message_id);
-    CHECK(forum_topic_object != nullptr);
-    if (order_by_creation_date || forum_topic_object->last_message_ == nullptr) {
-      next_offset_date = forum_topic_object->info_->creation_date_;
-    } else {
-      next_offset_date = forum_topic_object->last_message_->date_;
-    }
-    next_offset_message_id =
-        forum_topic_object->last_message_ != nullptr ? MessageId(forum_topic_object->last_message_->id_) : MessageId();
-    next_offset_top_thread_message_id = top_thread_message_id;
-    forum_topics.push_back(std::move(forum_topic_object));
-  }
-
-  promise.set_value(td_api::make_object<td_api::forumTopics>(info.total_count, std::move(forum_topics),
-                                                             next_offset_date, next_offset_message_id.get(),
-                                                             next_offset_top_thread_message_id.get()));
-}
-
-void ForumTopicManager::toggle_forum_topic_is_closed(DialogId dialog_id, MessageId top_thread_message_id,
-                                                     bool is_closed, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  TRY_STATUS_PROMISE(promise, can_be_message_thread_id(top_thread_message_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_edit_topics()) {
-    auto topic_info = get_topic_info(dialog_id, top_thread_message_id);
-    if (topic_info != nullptr && !topic_info->is_outgoing()) {
-      return promise.set_error(Status::Error(400, "Not enough rights to close or open the topic"));
-    }
-  }
-
-  td_->create_handler<EditForumTopicQuery>(std::move(promise))->send(channel_id, top_thread_message_id, is_closed);
-}
-
-void ForumTopicManager::toggle_forum_topic_is_hidden(DialogId dialog_id, bool is_hidden, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_edit_topics()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to close or open the topic"));
-  }
-
-  td_->create_handler<EditForumTopicQuery>(std::move(promise))->send(channel_id, is_hidden);
-}
-
-void ForumTopicManager::toggle_forum_topic_is_pinned(DialogId dialog_id, MessageId top_thread_message_id,
-                                                     bool is_pinned, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  TRY_STATUS_PROMISE(promise, can_be_message_thread_id(top_thread_message_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_pin_topics()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to pin or unpin the topic"));
-  }
-
-  td_->create_handler<UpdatePinnedForumTopicQuery>(std::move(promise))
-      ->send(channel_id, top_thread_message_id, is_pinned);
-}
-
-void ForumTopicManager::set_pinned_forum_topics(DialogId dialog_id, vector<MessageId> top_thread_message_ids,
-                                                Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  for (auto top_thread_message_id : top_thread_message_ids) {
-    TRY_STATUS_PROMISE(promise, can_be_message_thread_id(top_thread_message_id));
-  }
-  auto channel_id = dialog_id.get_channel_id();
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_pin_topics()) {
-    return promise.set_error(Status::Error(400, "Not enough rights to reorder forum topics"));
-  }
-
-  td_->create_handler<ReorderPinnedForumTopicsQuery>(std::move(promise))->send(channel_id, top_thread_message_ids);
-}
-
-void ForumTopicManager::delete_forum_topic(DialogId dialog_id, MessageId top_thread_message_id,
-                                           Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, is_forum(dialog_id));
-  TRY_STATUS_PROMISE(promise, can_be_message_thread_id(top_thread_message_id));
-  auto channel_id = dialog_id.get_channel_id();
-
-  if (!td_->chat_manager_->get_channel_permissions(channel_id).can_delete_messages()) {
-    auto topic_info = get_topic_info(dialog_id, top_thread_message_id);
-    if (topic_info != nullptr && !topic_info->is_outgoing()) {
-      return promise.set_error(Status::Error(400, "Not enough rights to delete the topic"));
-    }
-  }
-
-  auto delete_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, top_thread_message_id,
-                                                promise = std::move(promise)](Result<Unit> result) mutable {
-    if (result.is_error()) {
-      return promise.set_error(result.move_as_error());
-    }
-    send_closure(actor_id, &ForumTopicManager::on_delete_forum_topic, dialog_id, top_thread_message_id,
-                 std::move(promise));
-  });
-  td_->messages_manager_->delete_topic_history(dialog_id, top_thread_message_id, std::move(delete_promise));
-}
-
-void ForumTopicManager::on_delete_forum_topic(DialogId dialog_id, MessageId top_thread_message_id,
-                                              Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  auto *dialog_topics = dialog_topics_.get_pointer(dialog_id);
-  if (dialog_topics != nullptr) {
-    dialog_topics->topics_.erase(top_thread_message_id);
-    dialog_topics->deleted_topic_ids_.insert(top_thread_message_id);
-  }
-  delete_topic_from_database(dialog_id, top_thread_message_id, std::move(promise));
-}
-
-void ForumTopicManager::delete_all_dialog_topics(DialogId dialog_id) {
-  dialog_topics_.erase(dialog_id);
-
-  auto message_thread_db = G()->td_db()->get_message_thread_db_async();
-  if (message_thread_db == nullptr) {
-    return;
-  }
-
-  LOG(INFO) << "Delete all topics in " << dialog_id << " from database";
-  message_thread_db->delete_all_dialog_message_threads(dialog_id, Auto());
-}
-
-void ForumTopicManager::on_forum_topic_edited(DialogId dialog_id, MessageId top_thread_message_id,
-                                              const ForumTopicEditedData &edited_data) {
-  auto topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr || topic->info_ == nullptr) {
-    return;
-  }
-  if (topic->info_->apply_edited_data(edited_data)) {
-    send_update_forum_topic_info(dialog_id, topic->info_.get());
-    topic->need_save_to_database_ = true;
-  }
-  save_topic_to_database(dialog_id, topic);
-}
-
-void ForumTopicManager::on_get_forum_topic_info(DialogId dialog_id, const ForumTopicInfo &topic_info,
-                                                const char *source) {
-  if (!can_be_forum(dialog_id)) {
-    LOG(ERROR) << "Receive forum topics in " << dialog_id << " from " << source;
-    return;
-  }
-
-  auto dialog_topics = add_dialog_topics(dialog_id);
-  CHECK(dialog_topics != nullptr);
-  auto forum_topic_info = td::make_unique<ForumTopicInfo>(topic_info);
-  MessageId top_thread_message_id = forum_topic_info->get_top_thread_message_id();
-  CHECK(can_be_message_thread_id(top_thread_message_id).is_ok());
-  auto topic = add_topic(dialog_topics, top_thread_message_id);
-  if (topic == nullptr) {
-    return;
-  }
-  set_topic_info(dialog_id, topic, std::move(forum_topic_info));
-  save_topic_to_database(dialog_id, topic);
-}
-
-void ForumTopicManager::on_get_forum_topic_infos(DialogId dialog_id,
-                                                 vector<tl_object_ptr<telegram_api::ForumTopic>> &&forum_topics,
-                                                 const char *source) {
-  if (forum_topics.empty()) {
-    return;
-  }
-  if (!can_be_forum(dialog_id)) {
-    LOG(ERROR) << "Receive forum topics in " << dialog_id << " from " << source;
-    return;
-  }
-
-  auto dialog_topics = add_dialog_topics(dialog_id);
-  CHECK(dialog_topics != nullptr);
-  for (auto &forum_topic : forum_topics) {
-    auto forum_topic_info = td::make_unique<ForumTopicInfo>(td_, forum_topic);
-    MessageId top_thread_message_id = forum_topic_info->get_top_thread_message_id();
-    if (can_be_message_thread_id(top_thread_message_id).is_error()) {
-      continue;
-    }
-    auto topic = add_topic(dialog_topics, top_thread_message_id);
-    if (topic != nullptr) {
-      set_topic_info(dialog_id, topic, std::move(forum_topic_info));
-      save_topic_to_database(dialog_id, topic);
-    }
-  }
-}
-
-MessageId ForumTopicManager::on_get_forum_topic_impl(DialogId dialog_id,
-                                                     tl_object_ptr<telegram_api::ForumTopic> &&forum_topic) {
-  CHECK(forum_topic != nullptr);
-  switch (forum_topic->get_id()) {
-    case telegram_api::forumTopicDeleted::ID: {
-      auto top_thread_message_id =
-          MessageId(ServerMessageId(static_cast<const telegram_api::forumTopicDeleted *>(forum_topic.get())->id_));
-      if (!top_thread_message_id.is_valid()) {
-        LOG(ERROR) << "Receive " << to_string(forum_topic);
-        return MessageId();
-      }
-      on_delete_forum_topic(dialog_id, top_thread_message_id, Promise<Unit>());
-      return MessageId();
-    }
-    case telegram_api::forumTopic::ID: {
-      auto forum_topic_info = td::make_unique<ForumTopicInfo>(td_, forum_topic);
-      MessageId top_thread_message_id = forum_topic_info->get_top_thread_message_id();
-      Topic *topic = add_topic(dialog_id, top_thread_message_id);
-      if (topic == nullptr) {
-        return MessageId();
-      }
-      auto current_notification_settings =
-          topic->topic_ == nullptr ? nullptr : topic->topic_->get_notification_settings();
-      auto forum_topic_full = td::make_unique<ForumTopic>(td_, std::move(forum_topic), current_notification_settings);
-      if (forum_topic_full->is_short()) {
-        LOG(ERROR) << "Receive short " << to_string(forum_topic);
-        return MessageId();
-      }
-      if (topic->topic_ == nullptr || true) {
-        topic->topic_ = std::move(forum_topic_full);
-        topic->need_save_to_database_ = true;  // temporary
-      }
-      set_topic_info(dialog_id, topic, std::move(forum_topic_info));
-      save_topic_to_database(dialog_id, topic);
-      return top_thread_message_id;
-    }
-    default:
-      UNREACHABLE();
-      return MessageId();
-  }
-}
-
-td_api::object_ptr<td_api::forumTopic> ForumTopicManager::get_forum_topic_object(
-    DialogId dialog_id, MessageId top_thread_message_id) const {
-  auto topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr || topic->topic_ == nullptr) {
-    return nullptr;
-  }
-  CHECK(topic->info_ != nullptr);
-  return topic->topic_->get_forum_topic_object(td_, dialog_id, *topic->info_);
-}
-
-Status ForumTopicManager::is_forum(DialogId dialog_id) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "ForumTopicManager::is_forum")) {
-    return Status::Error(400, "Chat not found");
-  }
-  if (dialog_id.get_type() != DialogType::Channel ||
-      !td_->chat_manager_->is_forum_channel(dialog_id.get_channel_id())) {
-    return Status::Error(400, "The chat is not a forum");
-  }
-  return Status::OK();
-}
-
-bool ForumTopicManager::can_be_forum(DialogId dialog_id) const {
-  return dialog_id.get_type() == DialogType::Channel &&
-         td_->chat_manager_->is_megagroup_channel(dialog_id.get_channel_id());
-}
-
-Status ForumTopicManager::can_be_message_thread_id(MessageId top_thread_message_id) {
-  if (!top_thread_message_id.is_valid() || !top_thread_message_id.is_server()) {
-    return Status::Error(400, "Invalid message thread identifier specified");
-  }
-  return Status::OK();
-}
-
-ForumTopicManager::DialogTopics *ForumTopicManager::add_dialog_topics(DialogId dialog_id) {
-  auto *dialog_topics = dialog_topics_.get_pointer(dialog_id);
-  if (dialog_topics == nullptr) {
-    auto new_dialog_topics = make_unique<DialogTopics>();
-    dialog_topics = new_dialog_topics.get();
-    dialog_topics_.set(dialog_id, std::move(new_dialog_topics));
-  }
-  return dialog_topics;
-}
-
-ForumTopicManager::DialogTopics *ForumTopicManager::get_dialog_topics(DialogId dialog_id) {
-  return dialog_topics_.get_pointer(dialog_id);
-}
-
-ForumTopicManager::Topic *ForumTopicManager::add_topic(DialogTopics *dialog_topics, MessageId top_thread_message_id) {
-  auto topic = dialog_topics->topics_.get_pointer(top_thread_message_id);
-  if (topic == nullptr) {
-    if (dialog_topics->deleted_topic_ids_.count(top_thread_message_id) > 0) {
-      return nullptr;
-    }
-    auto new_topic = make_unique<Topic>();
-    topic = new_topic.get();
-    dialog_topics->topics_.set(top_thread_message_id, std::move(new_topic));
-  }
-  return topic;
-}
-
-ForumTopicManager::Topic *ForumTopicManager::get_topic(DialogTopics *dialog_topics, MessageId top_thread_message_id) {
-  return dialog_topics->topics_.get_pointer(top_thread_message_id);
-}
-
-ForumTopicManager::Topic *ForumTopicManager::add_topic(DialogId dialog_id, MessageId top_thread_message_id) {
-  return add_topic(add_dialog_topics(dialog_id), top_thread_message_id);
-}
-
-ForumTopicManager::Topic *ForumTopicManager::get_topic(DialogId dialog_id, MessageId top_thread_message_id) {
-  auto *dialog_topics = dialog_topics_.get_pointer(dialog_id);
-  if (dialog_topics == nullptr) {
-    return nullptr;
-  }
-  return dialog_topics->topics_.get_pointer(top_thread_message_id);
-}
-
-const ForumTopicManager::Topic *ForumTopicManager::get_topic(DialogId dialog_id,
-                                                             MessageId top_thread_message_id) const {
-  auto *dialog_topics = dialog_topics_.get_pointer(dialog_id);
-  if (dialog_topics == nullptr) {
-    return nullptr;
-  }
-  return dialog_topics->topics_.get_pointer(top_thread_message_id);
-}
-
-ForumTopicInfo *ForumTopicManager::get_topic_info(DialogId dialog_id, MessageId top_thread_message_id) {
-  auto *topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr) {
-    return nullptr;
-  }
-  return topic->info_.get();
-}
-
-const ForumTopicInfo *ForumTopicManager::get_topic_info(DialogId dialog_id, MessageId top_thread_message_id) const {
-  auto *topic = get_topic(dialog_id, top_thread_message_id);
-  if (topic == nullptr) {
-    return nullptr;
-  }
-  return topic->info_.get();
-}
-
-void ForumTopicManager::set_topic_info(DialogId dialog_id, Topic *topic, unique_ptr<ForumTopicInfo> forum_topic_info) {
-  if (topic->info_ == nullptr || *topic->info_ != *forum_topic_info) {
-    topic->info_ = std::move(forum_topic_info);
-    send_update_forum_topic_info(dialog_id, topic->info_.get());
-    topic->need_save_to_database_ = true;
-  }
-}
-
-td_api::object_ptr<td_api::updateForumTopicInfo> ForumTopicManager::get_update_forum_topic_info(
-    DialogId dialog_id, const ForumTopicInfo *topic_info) const {
-  return td_api::make_object<td_api::updateForumTopicInfo>(
-      td_->dialog_manager_->get_chat_id_object(dialog_id, "updateForumTopicInfo"),
-      topic_info->get_forum_topic_info_object(td_));
-}
-
-void ForumTopicManager::send_update_forum_topic_info(DialogId dialog_id, const ForumTopicInfo *topic_info) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  send_closure(G()->td(), &Td::send_update, get_update_forum_topic_info(dialog_id, topic_info));
-}
-
-void ForumTopicManager::save_topic_to_database(DialogId dialog_id, const Topic *topic) {
-  CHECK(topic != nullptr);
-  if (topic->info_ == nullptr || !topic->need_save_to_database_) {
-    return;
-  }
-  topic->need_save_to_database_ = false;
-
-  auto message_thread_db = G()->td_db()->get_message_thread_db_async();
-  if (message_thread_db == nullptr) {
-    return;
-  }
-
-  auto top_thread_message_id = topic->info_->get_top_thread_message_id();
-  LOG(INFO) << "Save topic of " << top_thread_message_id << " in " << dialog_id << " to database";
-  message_thread_db->add_message_thread(dialog_id, top_thread_message_id, 0, log_event_store(*topic), Auto());
-}
-
-void ForumTopicManager::delete_topic_from_database(DialogId dialog_id, MessageId top_thread_message_id,
-                                                   Promise<Unit> &&promise) {
-  auto message_thread_db = G()->td_db()->get_message_thread_db_async();
-  if (message_thread_db == nullptr) {
-    return promise.set_value(Unit());
-  }
-
-  LOG(INFO) << "Delete topic of " << top_thread_message_id << " in " << dialog_id << " from database";
-  message_thread_db->delete_message_thread(dialog_id, top_thread_message_id, std::move(promise));
-}
-
-void ForumTopicManager::on_topic_message_count_changed(DialogId dialog_id, MessageId top_thread_message_id, int diff) {
-  if (!can_be_forum(dialog_id) || can_be_message_thread_id(top_thread_message_id).is_error()) {
-    LOG(ERROR) << "Change by " << diff << " number of loaded messages in thread of " << top_thread_message_id << " in "
-               << dialog_id;
-    return;
-  }
-
-  LOG(INFO) << "Change by " << diff << " number of loaded messages in thread of " << top_thread_message_id << " in "
-            << dialog_id;
-  auto dialog_topics = add_dialog_topics(dialog_id);
-  auto topic = add_topic(dialog_topics, top_thread_message_id);
-  if (topic == nullptr) {
-    return;
-  }
-  topic->message_count_ += diff;
-  CHECK(topic->message_count_ >= 0);
-  if (topic->message_count_ == 0) {
-    // TODO keep topics in the topic list
-    dialog_topics->topics_.erase(top_thread_message_id);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ForumTopicManager.h b/third-party/td/td/td/telegram/ForumTopicManager.h
deleted file mode 100644
index d92e02d2ff..0000000000
--- a/third-party/td/td/td/telegram/ForumTopicManager.h
+++ /dev/null
@@ -1,195 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogNotificationSettings.h"
-#include "td/telegram/ForumTopic.h"
-#include "td/telegram/ForumTopicEditedData.h"
-#include "td/telegram/ForumTopicInfo.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesInfo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeHashSet.h"
-
-namespace td {
-
-class Td;
-
-class ForumTopicManager final : public Actor {
- public:
-  ForumTopicManager(Td *td, ActorShared<> parent);
-  ForumTopicManager(const ForumTopicManager &) = delete;
-  ForumTopicManager &operator=(const ForumTopicManager &) = delete;
-  ForumTopicManager(ForumTopicManager &&) = delete;
-  ForumTopicManager &operator=(ForumTopicManager &&) = delete;
-  ~ForumTopicManager() final;
-
-  void create_forum_topic(DialogId dialog_id, string &&title, td_api::object_ptr<td_api::forumTopicIcon> &&icon,
-                          Promise<td_api::object_ptr<td_api::forumTopicInfo>> &&promise);
-
-  void on_forum_topic_created(DialogId dialog_id, unique_ptr<ForumTopicInfo> &&forum_topic_info,
-                              Promise<td_api::object_ptr<td_api::forumTopicInfo>> &&promise);
-
-  void edit_forum_topic(DialogId dialog_id, MessageId top_thread_message_id, string &&title,
-                        bool edit_icon_custom_emoji, CustomEmojiId icon_custom_emoji_id, Promise<Unit> &&promise);
-
-  void get_forum_topic(DialogId dialog_id, MessageId top_thread_message_id,
-                       Promise<td_api::object_ptr<td_api::forumTopic>> &&promise);
-
-  void on_get_forum_topic(ChannelId channel_id, MessageId expected_top_thread_message_id, MessagesInfo &&info,
-                          telegram_api::object_ptr<telegram_api::ForumTopic> &&topic,
-                          Promise<td_api::object_ptr<td_api::forumTopic>> &&promise);
-
-  void on_get_forum_topics(ChannelId channel_id, bool order_by_creation_date, MessagesInfo &&info,
-                           vector<telegram_api::object_ptr<telegram_api::ForumTopic>> &&topics,
-                           Promise<td_api::object_ptr<td_api::forumTopics>> &&promise);
-
-  void get_forum_topic_link(DialogId dialog_id, MessageId top_thread_message_id,
-                            Promise<td_api::object_ptr<td_api::messageLink>> &&promise);
-
-  void get_forum_topics(DialogId dialog_id, string query, int32 offset_date, MessageId offset_message_id,
-                        MessageId offset_top_thread_message_id, int32 limit,
-                        Promise<td_api::object_ptr<td_api::forumTopics>> promise);
-
-  void toggle_forum_topic_is_closed(DialogId dialog_id, MessageId top_thread_message_id, bool is_closed,
-                                    Promise<Unit> &&promise);
-
-  const DialogNotificationSettings *get_forum_topic_notification_settings(DialogId dialog_id,
-                                                                          MessageId top_thread_message_id) const;
-
-  Status set_forum_topic_notification_settings(DialogId dialog_id, MessageId top_thread_message_id,
-                                               tl_object_ptr<td_api::chatNotificationSettings> &&notification_settings)
-      TD_WARN_UNUSED_RESULT;
-
-  void toggle_forum_topic_is_hidden(DialogId dialog_id, bool is_hidden, Promise<Unit> &&promise);
-
-  void toggle_forum_topic_is_pinned(DialogId dialog_id, MessageId top_thread_message_id, bool is_pinned,
-                                    Promise<Unit> &&promise);
-
-  void set_pinned_forum_topics(DialogId dialog_id, vector<MessageId> top_thread_message_ids, Promise<Unit> &&promise);
-
-  void delete_forum_topic(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> &&promise);
-
-  void delete_all_dialog_topics(DialogId dialog_id);
-
-  void read_forum_topic_messages(DialogId dialog_id, MessageId top_thread_message_id,
-                                 MessageId last_read_inbox_message_id);
-
-  void on_update_forum_topic_unread(DialogId dialog_id, MessageId top_thread_message_id, MessageId last_message_id,
-                                    MessageId last_read_inbox_message_id, MessageId last_read_outbox_message_id,
-                                    int32 unread_count);
-
-  void on_update_forum_topic_notify_settings(DialogId dialog_id, MessageId top_thread_message_id,
-                                             tl_object_ptr<telegram_api::peerNotifySettings> &&peer_notify_settings,
-                                             const char *source);
-
-  void on_update_forum_topic_is_pinned(DialogId dialog_id, MessageId top_thread_message_id, bool is_pinned);
-
-  void on_update_pinned_forum_topics(DialogId dialog_id, vector<MessageId> top_thread_message_ids);
-
-  void on_forum_topic_edited(DialogId dialog_id, MessageId top_thread_message_id,
-                             const ForumTopicEditedData &edited_data);
-
-  void on_get_forum_topic_info(DialogId dialog_id, const ForumTopicInfo &topic_info, const char *source);
-
-  void on_get_forum_topic_infos(DialogId dialog_id, vector<tl_object_ptr<telegram_api::ForumTopic>> &&forum_topics,
-                                const char *source);
-
-  td_api::object_ptr<td_api::forumTopic> get_forum_topic_object(DialogId dialog_id,
-                                                                MessageId top_thread_message_id) const;
-
-  void on_topic_message_count_changed(DialogId dialog_id, MessageId top_thread_message_id, int diff);
-
- private:
-  static constexpr size_t MAX_FORUM_TOPIC_TITLE_LENGTH = 128;  // server side limit for forum topic title
-
-  struct Topic {
-    unique_ptr<ForumTopicInfo> info_;
-    unique_ptr<ForumTopic> topic_;
-    int32 message_count_ = 0;
-    mutable bool need_save_to_database_ = true;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-
-    int32 MAGIC = 0x1fac3901;
-  };
-
-  struct DialogTopics {
-    WaitFreeHashMap<MessageId, unique_ptr<Topic>, MessageIdHash> topics_;
-    WaitFreeHashSet<MessageId, MessageIdHash> deleted_topic_ids_;
-  };
-
-  void tear_down() final;
-
-  Status is_forum(DialogId dialog_id);
-
-  bool can_be_forum(DialogId dialog_id) const;
-
-  static Status can_be_message_thread_id(MessageId top_thread_message_id);
-
-  DialogTopics *add_dialog_topics(DialogId dialog_id);
-
-  DialogTopics *get_dialog_topics(DialogId dialog_id);
-
-  static Topic *add_topic(DialogTopics *dialog_topics, MessageId top_thread_message_id);
-
-  static Topic *get_topic(DialogTopics *dialog_topics, MessageId top_thread_message_id);
-
-  Topic *add_topic(DialogId dialog_id, MessageId top_thread_message_id);
-
-  Topic *get_topic(DialogId dialog_id, MessageId top_thread_message_id);
-
-  const Topic *get_topic(DialogId dialog_id, MessageId top_thread_message_id) const;
-
-  ForumTopicInfo *get_topic_info(DialogId dialog_id, MessageId top_thread_message_id);
-
-  const ForumTopicInfo *get_topic_info(DialogId dialog_id, MessageId top_thread_message_id) const;
-
-  void set_topic_info(DialogId dialog_id, Topic *topic, unique_ptr<ForumTopicInfo> forum_topic_info);
-
-  MessageId on_get_forum_topic_impl(DialogId dialog_id, tl_object_ptr<telegram_api::ForumTopic> &&forum_topic);
-
-  DialogNotificationSettings *get_forum_topic_notification_settings(DialogId dialog_id,
-                                                                    MessageId top_thread_message_id);
-
-  bool update_forum_topic_notification_settings(DialogId dialog_id, MessageId top_thread_message_id,
-                                                DialogNotificationSettings *current_settings,
-                                                DialogNotificationSettings &&new_settings);
-
-  void on_delete_forum_topic(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> &&promise);
-
-  td_api::object_ptr<td_api::updateForumTopicInfo> get_update_forum_topic_info(DialogId dialog_id,
-                                                                               const ForumTopicInfo *topic_info) const;
-
-  void send_update_forum_topic_info(DialogId dialog_id, const ForumTopicInfo *topic_info) const;
-
-  void save_topic_to_database(DialogId dialog_id, const Topic *topic);
-
-  void delete_topic_from_database(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  WaitFreeHashMap<DialogId, unique_ptr<DialogTopics>, DialogIdHash> dialog_topics_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Game.cpp b/third-party/td/td/td/telegram/Game.cpp
deleted file mode 100644
index 71ed2b465f..0000000000
--- a/third-party/td/td/td/telegram/Game.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Game.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-Game::Game(Td *td, UserId bot_user_id, tl_object_ptr<telegram_api::game> &&game, FormattedText text,
-           DialogId owner_dialog_id)
-    : Game(td, std::move(game->title_), std::move(game->description_), std::move(game->photo_),
-           std::move(game->document_), owner_dialog_id) {
-  id_ = game->id_;
-  access_hash_ = game->access_hash_;
-  bot_user_id_ = bot_user_id.is_valid() ? bot_user_id : UserId();
-  short_name_ = std::move(game->short_name_);
-  text_ = std::move(text);
-}
-
-Game::Game(Td *td, string title, string description, tl_object_ptr<telegram_api::Photo> &&photo,
-           tl_object_ptr<telegram_api::Document> &&document, DialogId owner_dialog_id)
-    : title_(std::move(title)), description_(std::move(description)) {
-  CHECK(td != nullptr);
-  CHECK(photo != nullptr);
-  photo_ = get_photo(td, std::move(photo), owner_dialog_id);
-  if (photo_.is_empty()) {
-    LOG(ERROR) << "Receive empty photo for game " << title_;
-    photo_.id = 0;  // to prevent null photo in td_api
-  }
-  if (document != nullptr) {
-    int32 document_id = document->get_id();
-    if (document_id == telegram_api::document::ID) {
-      auto parsed_document = td->documents_manager_->on_get_document(
-          move_tl_object_as<telegram_api::document>(document), owner_dialog_id, false);
-      if (parsed_document.type == Document::Type::Animation) {
-        animation_file_id_ = parsed_document.file_id;
-      } else {
-        LOG(ERROR) << "Receive non-animation document in the game";
-      }
-    }
-  }
-}
-
-Game::Game(UserId bot_user_id, string short_name) : bot_user_id_(bot_user_id), short_name_(std::move(short_name)) {
-  if (!bot_user_id_.is_valid()) {
-    bot_user_id_ = UserId();
-  }
-  photo_.id = 0;  // to prevent null photo in td_api
-}
-
-bool Game::is_empty() const {
-  return short_name_.empty();
-}
-
-UserId Game::get_bot_user_id() const {
-  return bot_user_id_;
-}
-
-vector<FileId> Game::get_file_ids(const Td *td) const {
-  auto result = photo_get_file_ids(photo_);
-  Document(Document::Type::Animation, animation_file_id_).append_file_ids(td, result);
-  return result;
-}
-
-const FormattedText &Game::get_text() const {
-  return text_;
-}
-
-tl_object_ptr<td_api::game> Game::get_game_object(Td *td, bool is_server, bool skip_bot_commands) const {
-  return make_tl_object<td_api::game>(
-      id_, short_name_, title_,
-      get_formatted_text_object(is_server ? td->user_manager_.get() : nullptr, text_, skip_bot_commands, -1),
-      description_, get_photo_object(td->file_manager_.get(), photo_),
-      td->animations_manager_->get_animation_object(animation_file_id_));
-}
-
-bool Game::has_input_media() const {
-  return bot_user_id_.is_valid();
-}
-
-tl_object_ptr<telegram_api::inputMediaGame> Game::get_input_media_game(const Td *td) const {
-  auto input_user = td->user_manager_->get_input_user_force(bot_user_id_);
-  return make_tl_object<telegram_api::inputMediaGame>(
-      make_tl_object<telegram_api::inputGameShortName>(std::move(input_user), short_name_));
-}
-
-bool operator==(const Game &lhs, const Game &rhs) {
-  return lhs.id_ == rhs.id_ && lhs.access_hash_ == rhs.access_hash_ && lhs.bot_user_id_ == rhs.bot_user_id_ &&
-         lhs.short_name_ == rhs.short_name_ && lhs.title_ == rhs.title_ && lhs.description_ == rhs.description_ &&
-         lhs.photo_ == rhs.photo_ && lhs.animation_file_id_ == rhs.animation_file_id_ && lhs.text_ == rhs.text_;
-}
-
-bool operator!=(const Game &lhs, const Game &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Game &game) {
-  return string_builder << "Game[ID = " << game.id_ << ", access_hash = " << game.access_hash_
-                        << ", bot = " << game.bot_user_id_ << ", short_name = " << game.short_name_
-                        << ", title = " << game.title_ << ", description = " << game.description_
-                        << ", photo = " << game.photo_ << ", animation_file_id = " << game.animation_file_id_ << "]";
-}
-
-Result<Game> process_input_message_game(const UserManager *user_manager,
-                                        tl_object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  CHECK(input_message_content != nullptr);
-  CHECK(input_message_content->get_id() == td_api::inputMessageGame::ID);
-  auto input_message_game = move_tl_object_as<td_api::inputMessageGame>(input_message_content);
-
-  UserId bot_user_id(input_message_game->bot_user_id_);
-  TRY_STATUS(user_manager->get_input_user(bot_user_id));
-
-  if (!clean_input_string(input_message_game->game_short_name_)) {
-    return Status::Error(400, "Game short name must be encoded in UTF-8");
-  }
-
-  // TODO validate game_short_name
-  if (input_message_game->game_short_name_.empty()) {
-    return Status::Error(400, "Game short name must be non-empty");
-  }
-
-  return Game(bot_user_id, std::move(input_message_game->game_short_name_));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Game.h b/third-party/td/td/td/telegram/Game.h
deleted file mode 100644
index 16103c607c..0000000000
--- a/third-party/td/td/td/telegram/Game.h
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class UserManager;
-class Td;
-
-class Game {
-  int64 id_ = 0;
-  int64 access_hash_ = 0;
-  UserId bot_user_id_;
-  string short_name_;
-  string title_;
-  string description_;
-  Photo photo_;
-  FileId animation_file_id_;
-
-  FormattedText text_;
-
-  friend bool operator==(const Game &lhs, const Game &rhs);
-  friend bool operator!=(const Game &lhs, const Game &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const Game &game);
-
- public:
-  Game() = default;
-
-  Game(Td *td, UserId bot_user_id, tl_object_ptr<telegram_api::game> &&game, FormattedText text,
-       DialogId owner_dialog_id);
-
-  // for inline results
-  Game(Td *td, string title, string description, tl_object_ptr<telegram_api::Photo> &&photo,
-       tl_object_ptr<telegram_api::Document> &&document, DialogId owner_dialog_id);
-
-  // for outgoing messages
-  Game(UserId bot_user_id, string short_name);
-
-  bool is_empty() const;
-
-  UserId get_bot_user_id() const;
-
-  vector<FileId> get_file_ids(const Td *td) const;
-
-  const FormattedText &get_text() const;
-
-  tl_object_ptr<td_api::game> get_game_object(Td *td, bool is_server, bool skip_bot_commands) const;
-
-  bool has_input_media() const;
-
-  tl_object_ptr<telegram_api::inputMediaGame> get_input_media_game(const Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const Game &lhs, const Game &rhs);
-bool operator!=(const Game &lhs, const Game &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Game &game);
-
-Result<Game> process_input_message_game(const UserManager *user_manager,
-                                        tl_object_ptr<td_api::InputMessageContent> &&input_message_content)
-    TD_WARN_UNUSED_RESULT;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Game.hpp b/third-party/td/td/td/telegram/Game.hpp
deleted file mode 100644
index dfb4ec64ca..0000000000
--- a/third-party/td/td/td/telegram/Game.hpp
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Game.h"
-
-#include "td/telegram/AnimationsManager.hpp"
-#include "td/telegram/MessageEntity.hpp"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/Td.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void Game::store(StorerT &storer) const {
-  using td::store;
-  bool has_animation = animation_file_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_animation);
-  END_STORE_FLAGS();
-  store(id_, storer);
-  store(access_hash_, storer);
-  store(bot_user_id_, storer);
-  store(short_name_, storer);
-  store(title_, storer);
-  store(description_, storer);
-  store(photo_, storer);
-  if (has_animation) {
-    storer.context()->td().get_actor_unsafe()->animations_manager_->store_animation(animation_file_id_, storer);
-  }
-  store(text_, storer);
-}
-
-template <class ParserT>
-void Game::parse(ParserT &parser) {
-  using td::parse;
-  bool has_animation = true;
-  if (parser.version() >= static_cast<int32>(Version::FixStoreGameWithoutAnimation)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_animation);
-    END_PARSE_FLAGS();
-  }
-  parse(id_, parser);
-  parse(access_hash_, parser);
-  parse(bot_user_id_, parser);
-  parse(short_name_, parser);
-  parse(title_, parser);
-  parse(description_, parser);
-  parse(photo_, parser);
-  if (has_animation) {
-    animation_file_id_ = parser.context()->td().get_actor_unsafe()->animations_manager_->parse_animation(parser);
-  }
-  parse(text_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GameManager.cpp b/third-party/td/td/td/telegram/GameManager.cpp
deleted file mode 100644
index 76beb0e340..0000000000
--- a/third-party/td/td/td/telegram/GameManager.cpp
+++ /dev/null
@@ -1,196 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/GameManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChainId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class SetGameScoreQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SetGameScoreQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id, bool edit_message,
-            tl_object_ptr<telegram_api::InputUser> input_user, int32 score, bool force) {
-    int32 flags = 0;
-    if (edit_message) {
-      flags |= telegram_api::messages_setGameScore::EDIT_MESSAGE_MASK;
-    }
-    if (force) {
-      flags |= telegram_api::messages_setGameScore::FORCE_MASK;
-    }
-
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Edit);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    CHECK(input_user != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_setGameScore(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-                                            message_id.get_server_message_id().get(), std::move(input_user), score),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setGameScore>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SetGameScore: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SetGameScoreQuery: " << status;
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SetGameScoreQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGameHighScoresQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::gameHighScores>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetGameHighScoresQuery(Promise<td_api::object_ptr<td_api::gameHighScores>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id, tl_object_ptr<telegram_api::InputUser> input_user) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    CHECK(input_user != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::messages_getGameHighScores(
-        std::move(input_peer), message_id.get_server_message_id().get(), std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getGameHighScores>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(td_->game_manager_->get_game_high_scores_object(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetGameHighScoresQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-GameManager::GameManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-GameManager::~GameManager() = default;
-
-void GameManager::tear_down() {
-  parent_.reset();
-}
-
-void GameManager::set_game_score(MessageFullId message_full_id, bool edit_message, UserId user_id, int32 score,
-                                 bool force, Promise<td_api::object_ptr<td_api::message>> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_STATUS_PROMISE(promise,
-                     td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Edit, "set_game_score"));
-  if (!td_->messages_manager_->have_message_force(message_full_id, "set_game_score")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  if (!td_->messages_manager_->can_set_game_score(message_full_id)) {
-    return promise.set_error(Status::Error(400, "Game score can't be set"));
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), message_full_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &GameManager::on_set_game_score, message_full_id, std::move(promise));
-      });
-  td_->create_handler<SetGameScoreQuery>(std::move(query_promise))
-      ->send(dialog_id, message_full_id.get_message_id(), edit_message, std::move(input_user), score, force);
-}
-
-void GameManager::on_set_game_score(MessageFullId message_full_id,
-                                    Promise<td_api::object_ptr<td_api::message>> &&promise) {
-  promise.set_value(td_->messages_manager_->get_message_object(message_full_id, "on_set_game_score"));
-}
-
-void GameManager::get_game_high_scores(MessageFullId message_full_id, UserId user_id,
-                                       Promise<td_api::object_ptr<td_api::gameHighScores>> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "get_game_high_scores"));
-
-  if (!td_->messages_manager_->have_message_force(message_full_id, "get_game_high_scores")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  auto message_id = message_full_id.get_message_id();
-  if (message_id.is_scheduled() || !message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Wrong message identifier specified"));
-  }
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  td_->create_handler<GetGameHighScoresQuery>(std::move(promise))->send(dialog_id, message_id, std::move(input_user));
-}
-
-td_api::object_ptr<td_api::gameHighScores> GameManager::get_game_high_scores_object(
-    telegram_api::object_ptr<telegram_api::messages_highScores> &&high_scores) {
-  td_->user_manager_->on_get_users(std::move(high_scores->users_), "get_game_high_scores_object");
-
-  auto result = td_api::make_object<td_api::gameHighScores>();
-  for (const auto &high_score : high_scores->scores_) {
-    int32 position = high_score->pos_;
-    UserId user_id(high_score->user_id_);
-    int32 score = high_score->score_;
-    if (position <= 0 || !user_id.is_valid() || score < 0) {
-      LOG(ERROR) << "Receive wrong " << to_string(high_score);
-      continue;
-    }
-    result->scores_.push_back(make_tl_object<td_api::gameHighScore>(
-        position, td_->user_manager_->get_user_id_object(user_id, "get_game_high_scores_object"), score));
-  }
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GameManager.h b/third-party/td/td/td/telegram/GameManager.h
deleted file mode 100644
index 6bad590ea3..0000000000
--- a/third-party/td/td/td/telegram/GameManager.h
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class GameManager final : public Actor {
- public:
-  GameManager(Td *td, ActorShared<> parent);
-  GameManager(const GameManager &) = delete;
-  GameManager &operator=(const GameManager &) = delete;
-  GameManager(GameManager &&) = delete;
-  GameManager &operator=(GameManager &&) = delete;
-  ~GameManager() final;
-
-  void set_game_score(MessageFullId message_full_id, bool edit_message, UserId user_id, int32 score, bool force,
-                      Promise<td_api::object_ptr<td_api::message>> &&promise);
-
-  void get_game_high_scores(MessageFullId message_full_id, UserId user_id,
-                            Promise<td_api::object_ptr<td_api::gameHighScores>> &&promise);
-
-  td_api::object_ptr<td_api::gameHighScores> get_game_high_scores_object(
-      telegram_api::object_ptr<telegram_api::messages_highScores> &&high_scores);
-
- private:
-  void tear_down() final;
-
-  void on_set_game_score(MessageFullId message_full_id, Promise<td_api::object_ptr<td_api::message>> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GitCommitHash.cpp.in b/third-party/td/td/td/telegram/GitCommitHash.cpp.in
deleted file mode 100644
index 129618400d..0000000000
--- a/third-party/td/td/td/telegram/GitCommitHash.cpp.in
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/GitCommitHash.h"
-
-namespace td {
-
-const char *get_git_commit_hash() {
-  return "@TD_GIT_COMMIT_HASH@";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GitCommitHash.h b/third-party/td/td/td/telegram/GitCommitHash.h
deleted file mode 100644
index bd2251a431..0000000000
--- a/third-party/td/td/td/telegram/GitCommitHash.h
+++ /dev/null
@@ -1,13 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-namespace td {
-
-const char *get_git_commit_hash();
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GiveawayParameters.cpp b/third-party/td/td/td/telegram/GiveawayParameters.cpp
deleted file mode 100644
index 49a447d1bf..0000000000
--- a/third-party/td/td/td/telegram/GiveawayParameters.cpp
+++ /dev/null
@@ -1,191 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/GiveawayParameters.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/Random.h"
-
-namespace td {
-
-Result<ChannelId> GiveawayParameters::get_boosted_channel_id(Td *td, DialogId dialog_id) {
-  if (!td->dialog_manager_->have_dialog_force(dialog_id, "get_boosted_channel_id")) {
-    return Status::Error(400, "Chat to boost not found");
-  }
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return Status::Error(400, "Can't boost the chat");
-  }
-  auto channel_id = dialog_id.get_channel_id();
-  auto status = td->chat_manager_->get_channel_status(channel_id);
-  if (td->chat_manager_->is_broadcast_channel(channel_id) ? !status.can_post_messages() : !status.is_administrator()) {
-    return Status::Error(400, "Not enough rights in the chat");
-  }
-  return channel_id;
-}
-
-Result<GiveawayParameters> GiveawayParameters::get_giveaway_parameters(Td *td,
-                                                                       const td_api::giveawayParameters *parameters) {
-  if (parameters == nullptr) {
-    return Status::Error(400, "Giveaway parameters must be non-empty");
-  }
-  TRY_RESULT(boosted_channel_id, get_boosted_channel_id(td, DialogId(parameters->boosted_chat_id_)));
-  vector<ChannelId> additional_channel_ids;
-  for (auto additional_chat_id : parameters->additional_chat_ids_) {
-    TRY_RESULT(channel_id, get_boosted_channel_id(td, DialogId(additional_chat_id)));
-    additional_channel_ids.push_back(channel_id);
-  }
-  if (static_cast<int64>(additional_channel_ids.size()) >
-      td->option_manager_->get_option_integer("giveaway_additional_chat_count_max")) {
-    return Status::Error(400, "Too many additional chats specified");
-  }
-  if (parameters->winners_selection_date_ < G()->unix_time()) {
-    return Status::Error(400, "Giveaway date is in the past");
-  }
-  for (auto &country_code : parameters->country_codes_) {
-    if (country_code.size() != 2 || country_code[0] < 'A' || country_code[0] > 'Z') {
-      return Status::Error(400, "Invalid country code specified");
-    }
-  }
-  if (static_cast<int64>(parameters->country_codes_.size()) >
-      td->option_manager_->get_option_integer("giveaway_country_count_max")) {
-    return Status::Error(400, "Too many countries specified");
-  }
-  auto prize_description = parameters->prize_description_;
-  if (!clean_input_string(prize_description)) {
-    return Status::Error(400, "Strings must be encoded in UTF-8");
-  }
-  return GiveawayParameters(boosted_channel_id, std::move(additional_channel_ids), parameters->only_new_members_,
-                            parameters->has_public_winners_, parameters->winners_selection_date_,
-                            vector<string>(parameters->country_codes_), std::move(prize_description));
-}
-
-vector<ChannelId> GiveawayParameters::get_channel_ids() const {
-  auto result = additional_channel_ids_;
-  result.push_back(boosted_channel_id_);
-  return result;
-}
-
-void GiveawayParameters::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add_dialog_and_dependencies(DialogId(boosted_channel_id_));
-  for (auto channel_id : additional_channel_ids_) {
-    dependencies.add_dialog_and_dependencies(DialogId(channel_id));
-  }
-}
-
-telegram_api::object_ptr<telegram_api::inputStorePaymentPremiumGiveaway>
-GiveawayParameters::get_input_store_payment_premium_giveaway(Td *td, const string &currency, int64 amount) const {
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0);
-
-  auto boost_input_peer = td->dialog_manager_->get_input_peer(DialogId(boosted_channel_id_), AccessRights::Write);
-  CHECK(boost_input_peer != nullptr);
-
-  vector<telegram_api::object_ptr<telegram_api::InputPeer>> additional_input_peers;
-  for (auto additional_channel_id : additional_channel_ids_) {
-    auto input_peer = td->dialog_manager_->get_input_peer(DialogId(additional_channel_id), AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    additional_input_peers.push_back(std::move(input_peer));
-  }
-
-  int32 flags = 0;
-  if (!additional_input_peers.empty()) {
-    flags |= telegram_api::inputStorePaymentPremiumGiveaway::ADDITIONAL_PEERS_MASK;
-  }
-  if (!country_codes_.empty()) {
-    flags |= telegram_api::inputStorePaymentPremiumGiveaway::COUNTRIES_ISO2_MASK;
-  }
-  if (!prize_description_.empty()) {
-    flags |= telegram_api::inputStorePaymentPremiumGiveaway::PRIZE_DESCRIPTION_MASK;
-  }
-  return telegram_api::make_object<telegram_api::inputStorePaymentPremiumGiveaway>(
-      flags, only_new_subscribers_, winners_are_visible_, std::move(boost_input_peer),
-      std::move(additional_input_peers), vector<string>(country_codes_), prize_description_, random_id, date_, currency,
-      amount);
-}
-
-telegram_api::object_ptr<telegram_api::inputStorePaymentStarsGiveaway>
-GiveawayParameters::get_input_store_payment_stars_giveaway(Td *td, const string &currency, int64 amount,
-                                                           int32 user_count, int64 star_count) const {
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0);
-
-  auto boost_input_peer = td->dialog_manager_->get_input_peer(DialogId(boosted_channel_id_), AccessRights::Write);
-  CHECK(boost_input_peer != nullptr);
-
-  vector<telegram_api::object_ptr<telegram_api::InputPeer>> additional_input_peers;
-  for (auto additional_channel_id : additional_channel_ids_) {
-    auto input_peer = td->dialog_manager_->get_input_peer(DialogId(additional_channel_id), AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    additional_input_peers.push_back(std::move(input_peer));
-  }
-
-  int32 flags = 0;
-  if (!additional_input_peers.empty()) {
-    flags |= telegram_api::inputStorePaymentStarsGiveaway::ADDITIONAL_PEERS_MASK;
-  }
-  if (!country_codes_.empty()) {
-    flags |= telegram_api::inputStorePaymentStarsGiveaway::COUNTRIES_ISO2_MASK;
-  }
-  if (!prize_description_.empty()) {
-    flags |= telegram_api::inputStorePaymentStarsGiveaway::PRIZE_DESCRIPTION_MASK;
-  }
-  return telegram_api::make_object<telegram_api::inputStorePaymentStarsGiveaway>(
-      flags, only_new_subscribers_, winners_are_visible_, star_count, std::move(boost_input_peer),
-      std::move(additional_input_peers), vector<string>(country_codes_), prize_description_, random_id, date_, currency,
-      amount, user_count);
-}
-
-td_api::object_ptr<td_api::giveawayParameters> GiveawayParameters::get_giveaway_parameters_object(Td *td) const {
-  CHECK(is_valid());
-  vector<int64> chat_ids;
-  for (auto channel_id : additional_channel_ids_) {
-    DialogId dialog_id(channel_id);
-    td->dialog_manager_->force_create_dialog(dialog_id, "giveawayParameters", true);
-    chat_ids.push_back(td->dialog_manager_->get_chat_id_object(dialog_id, "giveawayParameters"));
-  }
-  DialogId dialog_id(boosted_channel_id_);
-  td->dialog_manager_->force_create_dialog(dialog_id, "giveawayParameters", true);
-  return td_api::make_object<td_api::giveawayParameters>(
-      td->dialog_manager_->get_chat_id_object(dialog_id, "giveawayParameters"), std::move(chat_ids), date_,
-      only_new_subscribers_, winners_are_visible_, vector<string>(country_codes_), prize_description_);
-}
-
-bool operator==(const GiveawayParameters &lhs, const GiveawayParameters &rhs) {
-  return lhs.boosted_channel_id_ == rhs.boosted_channel_id_ &&
-         lhs.additional_channel_ids_ == rhs.additional_channel_ids_ &&
-         lhs.only_new_subscribers_ == rhs.only_new_subscribers_ &&
-         lhs.winners_are_visible_ == rhs.winners_are_visible_ && lhs.date_ == rhs.date_ &&
-         lhs.country_codes_ == rhs.country_codes_ && lhs.prize_description_ == rhs.prize_description_;
-}
-
-bool operator!=(const GiveawayParameters &lhs, const GiveawayParameters &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const GiveawayParameters &giveaway_parameters) {
-  return string_builder << "Giveaway[" << giveaway_parameters.boosted_channel_id_ << " + "
-                        << giveaway_parameters.additional_channel_ids_
-                        << (giveaway_parameters.only_new_subscribers_ ? " only for new members" : "")
-                        << (giveaway_parameters.winners_are_visible_ ? " with public list of winners" : "")
-                        << " for countries " << giveaway_parameters.country_codes_ << " at "
-                        << giveaway_parameters.date_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GiveawayParameters.h b/third-party/td/td/td/telegram/GiveawayParameters.h
deleted file mode 100644
index 3ec47a75ac..0000000000
--- a/third-party/td/td/td/telegram/GiveawayParameters.h
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-
-class Td;
-
-class GiveawayParameters {
-  ChannelId boosted_channel_id_;
-  vector<ChannelId> additional_channel_ids_;
-  bool only_new_subscribers_ = false;
-  bool winners_are_visible_ = false;
-  int32 date_ = 0;
-  vector<string> country_codes_;
-  string prize_description_;
-
-  static Result<ChannelId> get_boosted_channel_id(Td *td, DialogId dialog_id);
-
-  friend bool operator==(const GiveawayParameters &lhs, const GiveawayParameters &rhs);
-  friend bool operator!=(const GiveawayParameters &lhs, const GiveawayParameters &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const GiveawayParameters &giveaway_parameters);
-
- public:
-  GiveawayParameters() = default;
-
-  GiveawayParameters(ChannelId boosted_channel_id, vector<ChannelId> &&additional_channel_ids,
-                     bool only_new_subscribers, bool winners_are_visible, int32 date, vector<string> &&country_codes,
-                     string &&prize_description)
-      : boosted_channel_id_(boosted_channel_id)
-      , additional_channel_ids_(std::move(additional_channel_ids))
-      , only_new_subscribers_(only_new_subscribers)
-      , winners_are_visible_(winners_are_visible)
-      , date_(date)
-      , country_codes_(std::move(country_codes))
-      , prize_description_(std::move(prize_description)) {
-  }
-
-  static Result<GiveawayParameters> get_giveaway_parameters(Td *td, const td_api::giveawayParameters *parameters);
-
-  bool is_valid() const {
-    for (auto channel_id : additional_channel_ids_) {
-      if (!channel_id.is_valid()) {
-        return false;
-      }
-    }
-    return boosted_channel_id_.is_valid() && date_ > 0;
-  }
-
-  DialogId get_boosted_dialog_id() const {
-    return DialogId(boosted_channel_id_);
-  }
-
-  vector<ChannelId> get_channel_ids() const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  telegram_api::object_ptr<telegram_api::inputStorePaymentPremiumGiveaway> get_input_store_payment_premium_giveaway(
-      Td *td, const string &currency, int64 amount) const;
-
-  telegram_api::object_ptr<telegram_api::inputStorePaymentStarsGiveaway> get_input_store_payment_stars_giveaway(
-      Td *td, const string &currency, int64 amount, int32 user_count, int64 star_count) const;
-
-  td_api::object_ptr<td_api::giveawayParameters> get_giveaway_parameters_object(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const GiveawayParameters &lhs, const GiveawayParameters &rhs);
-bool operator!=(const GiveawayParameters &lhs, const GiveawayParameters &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const GiveawayParameters &giveaway_parameters);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GiveawayParameters.hpp b/third-party/td/td/td/telegram/GiveawayParameters.hpp
deleted file mode 100644
index 04da1015ee..0000000000
--- a/third-party/td/td/td/telegram/GiveawayParameters.hpp
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/GiveawayParameters.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void GiveawayParameters::store(StorerT &storer) const {
-  bool has_additional_channel_ids = !additional_channel_ids_.empty();
-  bool has_country_codes = !country_codes_.empty();
-  bool has_prize_description = !prize_description_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(only_new_subscribers_);
-  STORE_FLAG(has_additional_channel_ids);
-  STORE_FLAG(has_country_codes);
-  STORE_FLAG(winners_are_visible_);
-  STORE_FLAG(has_prize_description);
-  END_STORE_FLAGS();
-  td::store(boosted_channel_id_, storer);
-  if (has_additional_channel_ids) {
-    td::store(additional_channel_ids_, storer);
-  }
-  td::store(date_, storer);
-  if (has_country_codes) {
-    td::store(country_codes_, storer);
-  }
-  if (has_prize_description) {
-    td::store(prize_description_, storer);
-  }
-}
-
-template <class ParserT>
-void GiveawayParameters::parse(ParserT &parser) {
-  bool has_additional_channel_ids;
-  bool has_country_codes;
-  bool has_prize_description;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(only_new_subscribers_);
-  PARSE_FLAG(has_additional_channel_ids);
-  PARSE_FLAG(has_country_codes);
-  PARSE_FLAG(winners_are_visible_);
-  PARSE_FLAG(has_prize_description);
-  END_PARSE_FLAGS();
-  td::parse(boosted_channel_id_, parser);
-  if (has_additional_channel_ids) {
-    td::parse(additional_channel_ids_, parser);
-  }
-  td::parse(date_, parser);
-  if (has_country_codes) {
-    td::parse(country_codes_, parser);
-  }
-  if (has_prize_description) {
-    td::parse(prize_description_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Global.cpp b/third-party/td/td/td/telegram/Global.cpp
deleted file mode 100644
index 082f38df49..0000000000
--- a/third-party/td/td/td/telegram/Global.cpp
+++ /dev/null
@@ -1,356 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Global.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/net/ConnectionCreator.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/net/NetQueryStats.h"
-#include "td/telegram/net/TempAuthKeyWatchdog.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/UpdatesManager.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/tl_helpers.h"
-
-#include <cmath>
-
-namespace td {
-
-Global::Global() {
-  auto current_scheduler_id = Scheduler::instance()->sched_id();
-  auto max_scheduler_id = Scheduler::instance()->sched_count() - 1;
-  database_scheduler_id_ = min(current_scheduler_id + 1, max_scheduler_id);
-  gc_scheduler_id_ = min(current_scheduler_id + 2, max_scheduler_id);
-  slow_net_scheduler_id_ = min(current_scheduler_id + 3, max_scheduler_id);
-}
-
-Global::~Global() = default;
-
-void Global::log_out(Slice reason) {
-  send_closure(auth_manager_, &AuthManager::on_authorization_lost, reason.str());
-}
-
-void Global::close_all(bool destroy_flag, Promise<Unit> on_finished) {
-  td_db_->close(use_sqlite_pmc() ? get_database_scheduler_id() : get_slow_net_scheduler_id(), destroy_flag,
-                std::move(on_finished));
-  state_manager_.clear();
-}
-
-ActorId<ConnectionCreator> Global::connection_creator() const {
-  return connection_creator_.get();
-}
-void Global::set_connection_creator(ActorOwn<ConnectionCreator> connection_creator) {
-  connection_creator_ = std::move(connection_creator);
-}
-
-ActorId<TempAuthKeyWatchdog> Global::temp_auth_key_watchdog() const {
-  return temp_auth_key_watchdog_.get();
-}
-void Global::set_temp_auth_key_watchdog(ActorOwn<TempAuthKeyWatchdog> actor) {
-  temp_auth_key_watchdog_ = std::move(actor);
-}
-
-MtprotoHeader &Global::mtproto_header() {
-  return *mtproto_header_;
-}
-void Global::set_mtproto_header(unique_ptr<MtprotoHeader> mtproto_header) {
-  mtproto_header_ = std::move(mtproto_header);
-}
-
-struct ServerTimeDiff {
-  double diff;
-  double system_time;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    store(diff, storer);
-    store(system_time, storer);
-  }
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    parse(diff, parser);
-    if (parser.get_left_len() != 0) {
-      parse(system_time, parser);
-    } else {
-      system_time = 0;
-    }
-  }
-};
-
-Status Global::init(ActorId<Td> td, unique_ptr<TdDb> td_db_ptr) {
-  td_ = td;
-  td_db_ = std::move(td_db_ptr);
-
-  string saved_diff_str = td_db()->get_binlog_pmc()->get("server_time_difference");
-  auto system_time = Clocks::system();
-  auto default_time_difference = system_time - Time::now();
-  if (saved_diff_str.empty()) {
-    server_time_difference_ = default_time_difference;
-  } else {
-    ServerTimeDiff saved_diff;
-    unserialize(saved_diff, saved_diff_str).ensure();
-
-    saved_diff_ = saved_diff.diff;
-    saved_system_time_ = saved_diff.system_time;
-
-    double diff = saved_diff.diff + default_time_difference;
-    if (saved_diff.system_time > system_time) {
-      double time_backwards_fix = saved_diff.system_time - system_time;
-      if (time_backwards_fix > 60) {
-        LOG(WARNING) << "Fix system time which went backwards: " << format::as_time(time_backwards_fix) << " "
-                     << tag("saved_system_time", saved_diff.system_time) << tag("system_time", system_time);
-      }
-      diff += time_backwards_fix;
-    } else if (saved_diff.system_time != 0) {
-      const double MAX_TIME_FORWARD = 367 * 86400;  // if more than 1 year has passed, the session is logged out anyway
-      if (saved_diff.system_time + MAX_TIME_FORWARD < system_time) {
-        double time_forward_fix = system_time - (saved_diff.system_time + MAX_TIME_FORWARD);
-        LOG(WARNING) << "Fix system time which went forward: " << format::as_time(time_forward_fix) << " "
-                     << tag("saved_system_time", saved_diff.system_time) << tag("system_time", system_time);
-        diff -= time_forward_fix;
-      }
-    } else if (saved_diff.diff >= 1500000000 && system_time >= 1500000000) {  // only for saved_diff.system_time == 0
-      diff = default_time_difference;
-    }
-    LOG(DEBUG) << "LOAD: " << tag("server_time_difference", diff);
-    server_time_difference_ = diff;
-  }
-  server_time_difference_was_updated_ = false;
-  dns_time_difference_ = default_time_difference;
-  dns_time_difference_was_updated_ = false;
-
-  return Status::OK();
-}
-
-Slice Global::get_dir() const {
-  return td_db_->get_database_directory();
-}
-
-Slice Global::get_files_dir() const {
-  return td_db_->get_files_directory();
-}
-
-bool Global::is_test_dc() const {
-  return td_db_->is_test_dc();
-}
-
-bool Global::use_file_database() const {
-  return td_db_->use_file_database();
-}
-
-bool Global::use_sqlite_pmc() const {
-  return td_db_->use_sqlite_pmc();
-}
-
-bool Global::use_chat_info_database() const {
-  return td_db_->use_chat_info_database();
-}
-
-bool Global::use_message_database() const {
-  return td_db_->use_message_database();
-}
-
-int32 Global::get_retry_after(int32 error_code, Slice error_message) {
-  if (error_code != 429) {
-    return 0;
-  }
-
-  Slice retry_after_prefix("Too Many Requests: retry after ");
-  if (!begins_with(error_message, retry_after_prefix)) {
-    return 0;
-  }
-
-  auto r_retry_after = to_integer_safe<int32>(error_message.substr(retry_after_prefix.size()));
-  if (r_retry_after.is_ok() && r_retry_after.ok() > 0) {
-    return r_retry_after.ok();
-  }
-  return 0;
-}
-
-int32 Global::to_unix_time(double server_time) const {
-  LOG_CHECK(1.0 <= server_time && server_time <= 2140000000.0)
-      << server_time << ' ' << Clocks::system() << ' ' << is_server_time_reliable() << ' '
-      << get_server_time_difference() << ' ' << Time::now() << ' ' << saved_diff_ << ' ' << saved_system_time_;
-  return static_cast<int32>(server_time);
-}
-
-void Global::update_server_time_difference(double diff, bool force) {
-  if (force || !server_time_difference_was_updated_ || server_time_difference_ < diff) {
-    server_time_difference_ = diff;
-    server_time_difference_was_updated_ = true;
-    do_save_server_time_difference();
-
-    get_option_manager()->on_update_server_time_difference();
-  }
-}
-
-void Global::save_server_time() {
-  auto t = Time::now();
-  if (server_time_difference_was_updated_ && system_time_saved_at_.load(std::memory_order_relaxed) + 10 < t) {
-    system_time_saved_at_ = t;
-    do_save_server_time_difference();
-  }
-}
-
-void Global::do_save_server_time_difference() {
-  if (get_option_boolean("disable_time_adjustment_protection")) {
-    td_db()->get_binlog_pmc()->erase("server_time_difference");
-    return;
-  }
-
-  // diff = server_time - Time::now
-  // fixed_diff = server_time - Clocks::system
-  double system_time = Clocks::system();
-  double fixed_diff = server_time_difference_ + Time::now() - system_time;
-
-  ServerTimeDiff diff;
-  diff.diff = fixed_diff;
-  diff.system_time = system_time;
-  td_db()->get_binlog_pmc()->set("server_time_difference", serialize(diff));
-}
-
-void Global::update_dns_time_difference(double diff) {
-  dns_time_difference_ = diff;
-  dns_time_difference_was_updated_ = true;
-}
-
-double Global::get_dns_time_difference() const {
-  bool dns_flag = dns_time_difference_was_updated_;
-  double dns_diff = dns_time_difference_;
-  bool server_flag = server_time_difference_was_updated_;
-  double server_diff = server_time_difference_;
-  if (dns_flag != server_flag) {
-    return dns_flag ? dns_diff : server_diff;
-  }
-  if (dns_flag) {
-    return max(dns_diff, server_diff);
-  }
-  if (td_db_) {
-    return server_diff;
-  }
-  return Clocks::system() - Time::now();
-}
-
-DcId Global::get_webfile_dc_id() const {
-  auto dc_id = narrow_cast<int32>(get_option_integer("webfile_dc_id"));
-  if (!DcId::is_valid(dc_id)) {
-    if (is_test_dc()) {
-      dc_id = 2;
-    } else {
-      dc_id = 4;
-    }
-
-    CHECK(DcId::is_valid(dc_id));
-  }
-
-  return DcId::internal(dc_id);
-}
-
-void Global::set_net_query_stats(std::shared_ptr<NetQueryStats> net_query_stats) {
-  net_query_creator_.set_create_func(
-      [net_query_stats = std::move(net_query_stats)] { return td::make_unique<NetQueryCreator>(net_query_stats); });
-}
-
-void Global::set_net_query_dispatcher(unique_ptr<NetQueryDispatcher> net_query_dispatcher) {
-  net_query_dispatcher_ = std::move(net_query_dispatcher);
-}
-
-const OptionManager *Global::get_option_manager() const {
-  CHECK(option_manager_ != nullptr);
-  return option_manager_;
-}
-
-OptionManager *Global::get_option_manager() {
-  CHECK(option_manager_ != nullptr);
-  return option_manager_;
-}
-
-void Global::set_option_empty(Slice name) {
-  get_option_manager()->set_option_empty(name);
-}
-
-void Global::set_option_boolean(Slice name, bool value) {
-  get_option_manager()->set_option_boolean(name, value);
-}
-
-void Global::set_option_integer(Slice name, int64 value) {
-  get_option_manager()->set_option_integer(name, value);
-}
-
-void Global::set_option_string(Slice name, Slice value) {
-  get_option_manager()->set_option_string(name, value);
-}
-
-bool Global::have_option(Slice name) const {
-  return get_option_manager()->have_option(name);
-}
-
-bool Global::get_option_boolean(Slice name, bool default_value) const {
-  return get_option_manager()->get_option_boolean(name, default_value);
-}
-
-int64 Global::get_option_integer(Slice name, int64 default_value) const {
-  return get_option_manager()->get_option_integer(name, default_value);
-}
-
-string Global::get_option_string(Slice name, string default_value) const {
-  return get_option_manager()->get_option_string(name, std::move(default_value));
-}
-
-int64 Global::get_location_key(double latitude, double longitude) {
-  const double PI = 3.14159265358979323846;
-  latitude *= PI / 180;
-  longitude *= PI / 180;
-
-  int64 key = 0;
-  if (latitude < 0) {
-    latitude = -latitude;
-    key = 65536;
-  }
-
-  double f = std::tan(PI / 4 - latitude / 2);
-  key += static_cast<int64>(f * std::cos(longitude) * 128) * 256;
-  key += static_cast<int64>(f * std::sin(longitude) * 128);
-  if (key == 0) {
-    key = 1;
-  }
-  return key;
-}
-
-int64 Global::get_location_access_hash(double latitude, double longitude) {
-  auto it = location_access_hashes_.find(get_location_key(latitude, longitude));
-  if (it == location_access_hashes_.end()) {
-    return 0;
-  }
-  return it->second;
-}
-
-void Global::add_location_access_hash(double latitude, double longitude, int64 access_hash) {
-  if (access_hash == 0) {
-    return;
-  }
-
-  location_access_hashes_[get_location_key(latitude, longitude)] = access_hash;
-}
-
-void Global::notify_speed_limited(bool is_upload) {
-  send_closure(updates_manager_, &UpdatesManager::notify_speed_limited, is_upload);
-}
-
-double get_global_server_time() {
-  return G()->server_time();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Global.h b/third-party/td/td/td/telegram/Global.h
deleted file mode 100644
index c7d35b7679..0000000000
--- a/third-party/td/td/td/telegram/Global.h
+++ /dev/null
@@ -1,830 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DhConfig.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/MtprotoHeader.h"
-#include "td/telegram/net/NetQueryCreator.h"
-
-#include "td/net/NetStats.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/SchedulerLocalStorage.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <atomic>
-#include <memory>
-#include <mutex>
-
-namespace td {
-
-class AccountManager;
-class AnimationsManager;
-class AttachMenuManager;
-class AuthManager;
-class AutosaveManager;
-class BackgroundManager;
-class BoostManager;
-class BotInfoManager;
-class BusinessConnectionManager;
-class BusinessManager;
-class CallManager;
-class ChatManager;
-class ConfigManager;
-class ConnectionCreator;
-class DialogActionManager;
-class DialogFilterManager;
-class DialogInviteLinkManager;
-class DialogManager;
-class DialogParticipantManager;
-class DownloadManager;
-class FileManager;
-class FileReferenceManager;
-class ForumTopicManager;
-class GameManager;
-class GroupCallManager;
-class InlineMessageManager;
-class LanguagePackManager;
-class LinkManager;
-class MessageImportManager;
-class MessageQueryManager;
-class MessagesManager;
-class NetQueryDispatcher;
-class NetQueryStats;
-class NotificationManager;
-class NotificationSettingsManager;
-class OnlineManager;
-class OptionManager;
-class PasswordManager;
-class PeopleNearbyManager;
-class PromoDataManager;
-class QuickReplyManager;
-class ReactionManager;
-class ReferralProgramManager;
-class SavedMessagesManager;
-class SecretChatsManager;
-class SponsoredMessageManager;
-class StarManager;
-class StateManager;
-class StickersManager;
-class StorageManager;
-class StoryManager;
-class SuggestedActionManager;
-class Td;
-class TdDb;
-class TempAuthKeyWatchdog;
-class ThemeManager;
-class TimeZoneManager;
-class TopDialogManager;
-class TranscriptionManager;
-class UpdatesManager;
-class UserManager;
-class WebAppManager;
-class WebPagesManager;
-
-class Global final : public ActorContext {
- public:
-  Global();
-  ~Global() final;
-  Global(const Global &) = delete;
-  Global &operator=(const Global &) = delete;
-  Global(Global &&) = delete;
-  Global &operator=(Global &&) = delete;
-
-  static constexpr int32 ID = -572104940;
-  int32 get_id() const final {
-    return ID;
-  }
-
-#define td_db() get_td_db_impl(__FILE__, __LINE__)
-  TdDb *get_td_db_impl(const char *file, int line) {
-    LOG_CHECK(td_db_) << close_flag() << " " << file << " " << line;
-    return td_db_.get();
-  }
-
-  void log_out(Slice reason);
-
-  void close_all(bool destroy_flag, Promise<> on_finished);
-
-  Status init(ActorId<Td> td, unique_ptr<TdDb> td_db_ptr) TD_WARN_UNUSED_RESULT;
-
-  Slice get_dir() const;
-
-  Slice get_secure_files_dir() const {
-    if (store_all_files_in_files_directory_) {
-      return get_files_dir();
-    }
-    return get_dir();
-  }
-
-  Slice get_files_dir() const;
-
-  bool is_test_dc() const;
-
-  NetQueryCreator &net_query_creator() {
-    return *net_query_creator_.get();
-  }
-
-  void set_net_query_stats(std::shared_ptr<NetQueryStats> net_query_stats);
-
-  void set_net_query_dispatcher(unique_ptr<NetQueryDispatcher> net_query_dispatcher);
-
-  NetQueryDispatcher &net_query_dispatcher() {
-    CHECK(have_net_query_dispatcher());
-    return *net_query_dispatcher_;
-  }
-
-  bool have_net_query_dispatcher() const {
-    return net_query_dispatcher_.get() != nullptr;
-  }
-
-  void set_option_empty(Slice name);
-
-  void set_option_boolean(Slice name, bool value);
-
-  void set_option_integer(Slice name, int64 value);
-
-  void set_option_string(Slice name, Slice value);
-
-  bool have_option(Slice name) const;
-
-  bool get_option_boolean(Slice name, bool default_value = false) const;
-
-  int64 get_option_integer(Slice name, int64 default_value = 0) const;
-
-  string get_option_string(Slice name, string default_value = "") const;
-
-  bool is_server_time_reliable() const {
-    return server_time_difference_was_updated_.load(std::memory_order_relaxed);
-  }
-  double server_time() const {
-    return Time::now() + get_server_time_difference();
-  }
-  int32 unix_time() const {
-    return to_unix_time(server_time());
-  }
-
-  void update_server_time_difference(double diff, bool force);
-
-  void save_server_time();
-
-  double get_server_time_difference() const {
-    return server_time_difference_.load(std::memory_order_relaxed);
-  }
-
-  void update_dns_time_difference(double diff);
-
-  double get_dns_time_difference() const;
-
-  ActorId<StateManager> state_manager() const {
-    return state_manager_;
-  }
-  void set_state_manager(ActorId<StateManager> state_manager) {
-    state_manager_ = state_manager;
-  }
-
-  ActorId<Td> td() const {
-    return td_;
-  }
-
-  ActorId<AccountManager> account_manager() const {
-    return account_manager_;
-  }
-  void set_account_manager(ActorId<AccountManager> account_manager) {
-    account_manager_ = account_manager;
-  }
-
-  ActorId<AnimationsManager> animations_manager() const {
-    return animations_manager_;
-  }
-  void set_animations_manager(ActorId<AnimationsManager> animations_manager) {
-    animations_manager_ = animations_manager;
-  }
-
-  ActorId<AttachMenuManager> attach_menu_manager() const {
-    return attach_menu_manager_;
-  }
-  void set_attach_menu_manager(ActorId<AttachMenuManager> attach_menu_manager) {
-    attach_menu_manager_ = attach_menu_manager;
-  }
-
-  void set_auth_manager(ActorId<AuthManager> auth_manager) {
-    auth_manager_ = auth_manager;
-  }
-
-  ActorId<AutosaveManager> autosave_manager() const {
-    return autosave_manager_;
-  }
-  void set_autosave_manager(ActorId<AutosaveManager> autosave_manager) {
-    autosave_manager_ = autosave_manager;
-  }
-
-  ActorId<BackgroundManager> background_manager() const {
-    return background_manager_;
-  }
-  void set_background_manager(ActorId<BackgroundManager> background_manager) {
-    background_manager_ = background_manager;
-  }
-
-  ActorId<BoostManager> boost_manager() const {
-    return boost_manager_;
-  }
-  void set_boost_manager(ActorId<BoostManager> boost_manager) {
-    boost_manager_ = boost_manager;
-  }
-
-  ActorId<BotInfoManager> bot_info_manager() const {
-    return bot_info_manager_;
-  }
-  void set_bot_info_manager(ActorId<BotInfoManager> bot_info_manager) {
-    bot_info_manager_ = bot_info_manager;
-  }
-
-  ActorId<BusinessConnectionManager> business_connection_manager() const {
-    return business_connection_manager_;
-  }
-  void set_business_connection_manager(ActorId<BusinessConnectionManager> business_connection_manager) {
-    business_connection_manager_ = business_connection_manager;
-  }
-
-  ActorId<BusinessManager> business_manager() const {
-    return business_manager_;
-  }
-  void set_business_manager(ActorId<BusinessManager> business_manager) {
-    business_manager_ = business_manager;
-  }
-
-  ActorId<CallManager> call_manager() const {
-    return call_manager_;
-  }
-  void set_call_manager(ActorId<CallManager> call_manager) {
-    call_manager_ = call_manager;
-  }
-
-  ActorId<ChatManager> chat_manager() const {
-    return chat_manager_;
-  }
-  void set_chat_manager(ActorId<ChatManager> chat_manager) {
-    chat_manager_ = chat_manager;
-  }
-
-  ActorId<ConfigManager> config_manager() const {
-    return config_manager_;
-  }
-  void set_config_manager(ActorId<ConfigManager> config_manager) {
-    config_manager_ = config_manager;
-  }
-
-  ActorId<DialogActionManager> dialog_action_manager() const {
-    return dialog_action_manager_;
-  }
-  void set_dialog_action_manager(ActorId<DialogActionManager> dialog_action_manager) {
-    dialog_action_manager_ = std::move(dialog_action_manager);
-  }
-
-  ActorId<DialogFilterManager> dialog_filter_manager() const {
-    return dialog_filter_manager_;
-  }
-  void set_dialog_filter_manager(ActorId<DialogFilterManager> dialog_filter_manager) {
-    dialog_filter_manager_ = std::move(dialog_filter_manager);
-  }
-
-  ActorId<DialogInviteLinkManager> dialog_invite_link_manager() const {
-    return dialog_invite_link_manager_;
-  }
-  void set_dialog_invite_link_manager(ActorId<DialogInviteLinkManager> dialog_invite_link_manager) {
-    dialog_invite_link_manager_ = std::move(dialog_invite_link_manager);
-  }
-
-  ActorId<DialogManager> dialog_manager() const {
-    return dialog_manager_;
-  }
-  void set_dialog_manager(ActorId<DialogManager> dialog_manager) {
-    dialog_manager_ = std::move(dialog_manager);
-  }
-
-  ActorId<DialogParticipantManager> dialog_participant_manager() const {
-    return dialog_participant_manager_;
-  }
-  void set_dialog_participant_manager(ActorId<DialogParticipantManager> dialog_participant_manager) {
-    dialog_participant_manager_ = std::move(dialog_participant_manager);
-  }
-
-  ActorId<DownloadManager> download_manager() const {
-    return download_manager_;
-  }
-  void set_download_manager(ActorId<DownloadManager> download_manager) {
-    download_manager_ = std::move(download_manager);
-  }
-
-  ActorId<FileManager> file_manager() const {
-    return file_manager_;
-  }
-  void set_file_manager(ActorId<FileManager> file_manager) {
-    file_manager_ = std::move(file_manager);
-  }
-
-  ActorId<FileReferenceManager> file_reference_manager() const {
-    return file_reference_manager_;
-  }
-  void set_file_reference_manager(ActorId<FileReferenceManager> file_reference_manager) {
-    file_reference_manager_ = std::move(file_reference_manager);
-  }
-
-  ActorId<ForumTopicManager> forum_topic_manager() const {
-    return forum_topic_manager_;
-  }
-  void set_forum_topic_manager(ActorId<ForumTopicManager> forum_topic_manager) {
-    forum_topic_manager_ = forum_topic_manager;
-  }
-
-  ActorId<GameManager> game_manager() const {
-    return game_manager_;
-  }
-  void set_game_manager(ActorId<GameManager> game_manager) {
-    game_manager_ = game_manager;
-  }
-
-  ActorId<GroupCallManager> group_call_manager() const {
-    return group_call_manager_;
-  }
-  void set_group_call_manager(ActorId<GroupCallManager> group_call_manager) {
-    group_call_manager_ = group_call_manager;
-  }
-
-  ActorId<InlineMessageManager> inline_message_manager() const {
-    return inline_message_manager_;
-  }
-  void set_inline_message_manager(ActorId<InlineMessageManager> inline_message_manager) {
-    inline_message_manager_ = inline_message_manager;
-  }
-
-  ActorId<LanguagePackManager> language_pack_manager() const {
-    return language_pack_manager_;
-  }
-  void set_language_pack_manager(ActorId<LanguagePackManager> language_pack_manager) {
-    language_pack_manager_ = language_pack_manager;
-  }
-
-  ActorId<LinkManager> link_manager() const {
-    return link_manager_;
-  }
-  void set_link_manager(ActorId<LinkManager> link_manager) {
-    link_manager_ = link_manager;
-  }
-
-  ActorId<MessageImportManager> message_import_manager() const {
-    return message_import_manager_;
-  }
-  void set_message_import_manager(ActorId<MessageImportManager> message_import_manager) {
-    message_import_manager_ = message_import_manager;
-  }
-
-  ActorId<MessageQueryManager> message_query_manager() const {
-    return message_query_manager_;
-  }
-  void set_message_query_manager(ActorId<MessageQueryManager> message_query_manager) {
-    message_query_manager_ = message_query_manager;
-  }
-
-  ActorId<MessagesManager> messages_manager() const {
-    return messages_manager_;
-  }
-  void set_messages_manager(ActorId<MessagesManager> messages_manager) {
-    messages_manager_ = messages_manager;
-  }
-
-  ActorId<NotificationManager> notification_manager() const {
-    return notification_manager_;
-  }
-  void set_notification_manager(ActorId<NotificationManager> notification_manager) {
-    notification_manager_ = notification_manager;
-  }
-
-  ActorId<NotificationSettingsManager> notification_settings_manager() const {
-    return notification_settings_manager_;
-  }
-  void set_notification_settings_manager(ActorId<NotificationSettingsManager> notification_settings_manager) {
-    notification_settings_manager_ = notification_settings_manager;
-  }
-
-  ActorId<OnlineManager> online_manager() const {
-    return online_manager_;
-  }
-  void set_online_manager(ActorId<OnlineManager> online_manager) {
-    online_manager_ = online_manager;
-  }
-
-  void set_option_manager(OptionManager *option_manager) {
-    option_manager_ = option_manager;
-  }
-  OptionManager *get_option_manager();
-
-  ActorId<PasswordManager> password_manager() const {
-    return password_manager_;
-  }
-  void set_password_manager(ActorId<PasswordManager> password_manager) {
-    password_manager_ = password_manager;
-  }
-
-  ActorId<PeopleNearbyManager> people_nearby_manager() const {
-    return people_nearby_manager_;
-  }
-  void set_people_nearby_manager(ActorId<PeopleNearbyManager> people_nearby_manager) {
-    people_nearby_manager_ = people_nearby_manager;
-  }
-
-  ActorId<PromoDataManager> promo_data_manager() const {
-    return promo_data_manager_;
-  }
-  void set_promo_data_manager(ActorId<PromoDataManager> promo_data_manager) {
-    promo_data_manager_ = promo_data_manager;
-  }
-
-  ActorId<QuickReplyManager> quick_reply_manager() const {
-    return quick_reply_manager_;
-  }
-  void set_quick_reply_manager(ActorId<QuickReplyManager> quick_reply_manager) {
-    quick_reply_manager_ = quick_reply_manager;
-  }
-
-  ActorId<ReactionManager> reaction_manager() const {
-    return reaction_manager_;
-  }
-  void set_reaction_manager(ActorId<ReactionManager> reaction_manager) {
-    reaction_manager_ = reaction_manager;
-  }
-
-  ActorId<ReferralProgramManager> referral_program_manager() const {
-    return referral_program_manager_;
-  }
-  void set_referral_program_manager(ActorId<ReferralProgramManager> referral_program_manager) {
-    referral_program_manager_ = referral_program_manager;
-  }
-
-  ActorId<SavedMessagesManager> saved_messages_manager() const {
-    return saved_messages_manager_;
-  }
-  void set_saved_messages_manager(ActorId<SavedMessagesManager> saved_messages_manager) {
-    saved_messages_manager_ = saved_messages_manager;
-  }
-
-  ActorId<SecretChatsManager> secret_chats_manager() const {
-    return secret_chats_manager_;
-  }
-  void set_secret_chats_manager(ActorId<SecretChatsManager> secret_chats_manager) {
-    secret_chats_manager_ = secret_chats_manager;
-  }
-
-  ActorId<SponsoredMessageManager> sponsored_message_manager() const {
-    return sponsored_message_manager_;
-  }
-  void set_sponsored_message_manager(ActorId<SponsoredMessageManager> sponsored_message_manager) {
-    sponsored_message_manager_ = sponsored_message_manager;
-  }
-
-  ActorId<StarManager> star_manager() const {
-    return star_manager_;
-  }
-  void set_star_manager(ActorId<StarManager> star_manager) {
-    star_manager_ = star_manager;
-  }
-
-  ActorId<StickersManager> stickers_manager() const {
-    return stickers_manager_;
-  }
-  void set_stickers_manager(ActorId<StickersManager> stickers_manager) {
-    stickers_manager_ = stickers_manager;
-  }
-
-  ActorId<StorageManager> storage_manager() const {
-    return storage_manager_;
-  }
-  void set_storage_manager(ActorId<StorageManager> storage_manager) {
-    storage_manager_ = storage_manager;
-  }
-
-  ActorId<StoryManager> story_manager() const {
-    return story_manager_;
-  }
-  void set_story_manager(ActorId<StoryManager> story_manager) {
-    story_manager_ = story_manager;
-  }
-
-  ActorId<SuggestedActionManager> suggested_action_manager() const {
-    return suggested_action_manager_;
-  }
-  void set_suggested_action_manager(ActorId<SuggestedActionManager> suggested_action_manager) {
-    suggested_action_manager_ = suggested_action_manager;
-  }
-
-  ActorId<ThemeManager> theme_manager() const {
-    return theme_manager_;
-  }
-  void set_theme_manager(ActorId<ThemeManager> theme_manager) {
-    theme_manager_ = theme_manager;
-  }
-
-  ActorId<TimeZoneManager> time_zone_manager() const {
-    return time_zone_manager_;
-  }
-  void set_time_zone_manager(ActorId<TimeZoneManager> time_zone_manager) {
-    time_zone_manager_ = time_zone_manager;
-  }
-
-  ActorId<TopDialogManager> top_dialog_manager() const {
-    return top_dialog_manager_;
-  }
-  void set_top_dialog_manager(ActorId<TopDialogManager> top_dialog_manager) {
-    top_dialog_manager_ = top_dialog_manager;
-  }
-
-  ActorId<TranscriptionManager> transcription_manager() const {
-    return transcription_manager_;
-  }
-  void set_transcription_manager(ActorId<TranscriptionManager> transcription_manager) {
-    transcription_manager_ = transcription_manager;
-  }
-
-  ActorId<UpdatesManager> updates_manager() const {
-    return updates_manager_;
-  }
-  void set_updates_manager(ActorId<UpdatesManager> updates_manager) {
-    updates_manager_ = updates_manager;
-  }
-
-  ActorId<UserManager> user_manager() const {
-    return user_manager_;
-  }
-  void set_user_manager(ActorId<UserManager> user_manager) {
-    user_manager_ = user_manager;
-  }
-
-  ActorId<WebAppManager> web_app_manager() const {
-    return web_app_manager_;
-  }
-  void set_web_app_manager(ActorId<WebAppManager> web_app_manager) {
-    web_app_manager_ = web_app_manager;
-  }
-
-  ActorId<WebPagesManager> web_pages_manager() const {
-    return web_pages_manager_;
-  }
-  void set_web_pages_manager(ActorId<WebPagesManager> web_pages_manager) {
-    web_pages_manager_ = web_pages_manager;
-  }
-
-  ActorId<ConnectionCreator> connection_creator() const;
-  void set_connection_creator(ActorOwn<ConnectionCreator> connection_creator);
-
-  ActorId<TempAuthKeyWatchdog> temp_auth_key_watchdog() const;
-  void set_temp_auth_key_watchdog(ActorOwn<TempAuthKeyWatchdog> actor);
-
-  MtprotoHeader &mtproto_header();
-  void set_mtproto_header(unique_ptr<MtprotoHeader> mtproto_header);
-  bool have_mtproto_header() const {
-    return mtproto_header_ != nullptr;
-  }
-
-  bool use_file_database() const;
-
-  bool use_sqlite_pmc() const;
-
-  bool use_chat_info_database() const;
-
-  bool use_message_database() const;
-
-  bool keep_media_order() const {
-    return use_file_database();
-  }
-
-  int32 get_database_scheduler_id() {
-    return database_scheduler_id_;
-  }
-
-  int32 get_gc_scheduler_id() const {
-    return gc_scheduler_id_;
-  }
-
-  int32 get_main_session_scheduler_id() const {
-    return use_sqlite_pmc() ? -1 : database_scheduler_id_;
-  }
-
-  int32 get_slow_net_scheduler_id() const {
-    return slow_net_scheduler_id_;
-  }
-
-  DcId get_webfile_dc_id() const;
-
-  std::shared_ptr<DhConfig> get_dh_config() {
-#if !TD_HAVE_ATOMIC_SHARED_PTR
-    std::lock_guard<std::mutex> guard(dh_config_mutex_);
-    auto res = dh_config_;
-    return res;
-#else
-    return atomic_load(&dh_config_);
-#endif
-  }
-
-  void set_dh_config(std::shared_ptr<DhConfig> new_dh_config) {
-#if !TD_HAVE_ATOMIC_SHARED_PTR
-    std::lock_guard<std::mutex> guard(dh_config_mutex_);
-    dh_config_ = std::move(new_dh_config);
-#else
-    atomic_store(&dh_config_, std::move(new_dh_config));
-#endif
-  }
-
-  static Status request_aborted_error() {
-    return Status::Error(500, "Request aborted");
-  }
-
-  template <class T>
-  void ignore_result_if_closing(Result<T> &result) const {
-    if (close_flag() && result.is_ok()) {
-      result = request_aborted_error();
-    }
-  }
-
-  void set_close_flag() {
-    close_flag_ = true;
-  }
-  bool close_flag() const {
-    return close_flag_.load();
-  }
-
-  Status close_status() const {
-    return close_flag() ? request_aborted_error() : Status::OK();
-  }
-
-  bool is_expected_error(const Status &error) const {
-    CHECK(error.is_error());
-    if (error.code() == 401) {
-      // authorization is lost
-      return true;
-    }
-    if (error.code() == 420 || error.code() == 429) {
-      // flood wait
-      return true;
-    }
-    if (error.code() == 406 && error.message() == "FROZEN_METHOD_INVALID") {
-      // the account is frozen
-      return true;
-    }
-    return close_flag();
-  }
-
-  static int32 get_retry_after(int32 error_code, Slice error_message);
-
-  static int32 get_retry_after(const Status &error) {
-    return get_retry_after(error.code(), error.message());
-  }
-
-  const std::vector<std::shared_ptr<NetStatsCallback>> &get_net_stats_file_callbacks() {
-    return net_stats_file_callbacks_;
-  }
-  void set_net_stats_file_callbacks(std::vector<std::shared_ptr<NetStatsCallback>> callbacks) {
-    net_stats_file_callbacks_ = std::move(callbacks);
-  }
-
-  int64 get_location_access_hash(double latitude, double longitude);
-
-  void add_location_access_hash(double latitude, double longitude, int64 access_hash);
-
-  void set_store_all_files_in_files_directory(bool flag) {
-    store_all_files_in_files_directory_ = flag;
-  }
-
-  void notify_speed_limited(bool is_upload);
-
- private:
-  std::shared_ptr<DhConfig> dh_config_;
-
-  unique_ptr<TdDb> td_db_;
-
-  ActorId<Td> td_;
-  ActorId<AccountManager> account_manager_;
-  ActorId<AnimationsManager> animations_manager_;
-  ActorId<AttachMenuManager> attach_menu_manager_;
-  ActorId<AuthManager> auth_manager_;
-  ActorId<AutosaveManager> autosave_manager_;
-  ActorId<BackgroundManager> background_manager_;
-  ActorId<BoostManager> boost_manager_;
-  ActorId<BotInfoManager> bot_info_manager_;
-  ActorId<BusinessConnectionManager> business_connection_manager_;
-  ActorId<BusinessManager> business_manager_;
-  ActorId<CallManager> call_manager_;
-  ActorId<ChatManager> chat_manager_;
-  ActorId<ConfigManager> config_manager_;
-  ActorId<DialogActionManager> dialog_action_manager_;
-  ActorId<DialogFilterManager> dialog_filter_manager_;
-  ActorId<DialogInviteLinkManager> dialog_invite_link_manager_;
-  ActorId<DialogManager> dialog_manager_;
-  ActorId<DialogParticipantManager> dialog_participant_manager_;
-  ActorId<DownloadManager> download_manager_;
-  ActorId<FileManager> file_manager_;
-  ActorId<FileReferenceManager> file_reference_manager_;
-  ActorId<ForumTopicManager> forum_topic_manager_;
-  ActorId<GameManager> game_manager_;
-  ActorId<GroupCallManager> group_call_manager_;
-  ActorId<InlineMessageManager> inline_message_manager_;
-  ActorId<LanguagePackManager> language_pack_manager_;
-  ActorId<LinkManager> link_manager_;
-  ActorId<MessageImportManager> message_import_manager_;
-  ActorId<MessageQueryManager> message_query_manager_;
-  ActorId<MessagesManager> messages_manager_;
-  ActorId<NotificationManager> notification_manager_;
-  ActorId<NotificationSettingsManager> notification_settings_manager_;
-  ActorId<OnlineManager> online_manager_;
-  ActorId<PasswordManager> password_manager_;
-  ActorId<PeopleNearbyManager> people_nearby_manager_;
-  ActorId<PromoDataManager> promo_data_manager_;
-  ActorId<QuickReplyManager> quick_reply_manager_;
-  ActorId<ReactionManager> reaction_manager_;
-  ActorId<ReferralProgramManager> referral_program_manager_;
-  ActorId<SavedMessagesManager> saved_messages_manager_;
-  ActorId<SecretChatsManager> secret_chats_manager_;
-  ActorId<SponsoredMessageManager> sponsored_message_manager_;
-  ActorId<StarManager> star_manager_;
-  ActorId<StickersManager> stickers_manager_;
-  ActorId<StorageManager> storage_manager_;
-  ActorId<StoryManager> story_manager_;
-  ActorId<SuggestedActionManager> suggested_action_manager_;
-  ActorId<ThemeManager> theme_manager_;
-  ActorId<TimeZoneManager> time_zone_manager_;
-  ActorId<TopDialogManager> top_dialog_manager_;
-  ActorId<TranscriptionManager> transcription_manager_;
-  ActorId<UpdatesManager> updates_manager_;
-  ActorId<UserManager> user_manager_;
-  ActorId<WebAppManager> web_app_manager_;
-  ActorId<WebPagesManager> web_pages_manager_;
-  ActorOwn<ConnectionCreator> connection_creator_;
-  ActorOwn<TempAuthKeyWatchdog> temp_auth_key_watchdog_;
-
-  unique_ptr<MtprotoHeader> mtproto_header_;
-
-  OptionManager *option_manager_ = nullptr;
-
-  int32 database_scheduler_id_ = 0;
-  int32 gc_scheduler_id_ = 0;
-  int32 slow_net_scheduler_id_ = 0;
-
-  std::atomic<bool> store_all_files_in_files_directory_{false};
-
-  std::atomic<double> server_time_difference_{0.0};
-  std::atomic<bool> server_time_difference_was_updated_{false};
-  std::atomic<double> dns_time_difference_{0.0};
-  std::atomic<bool> dns_time_difference_was_updated_{false};
-  std::atomic<bool> close_flag_{false};
-  std::atomic<double> system_time_saved_at_{-1e10};
-  double saved_diff_ = 0.0;
-  double saved_system_time_ = 0.0;
-
-#if !TD_HAVE_ATOMIC_SHARED_PTR
-  std::mutex dh_config_mutex_;
-#endif
-
-  std::vector<std::shared_ptr<NetStatsCallback>> net_stats_file_callbacks_;
-
-  ActorId<StateManager> state_manager_;
-
-  LazySchedulerLocalStorage<unique_ptr<NetQueryCreator>> net_query_creator_;
-  unique_ptr<NetQueryDispatcher> net_query_dispatcher_;
-
-  static int64 get_location_key(double latitude, double longitude);
-
-  FlatHashMap<int64, int64> location_access_hashes_;
-
-  int32 to_unix_time(double server_time) const;
-
-  const OptionManager *get_option_manager() const;
-
-  void do_save_server_time_difference();
-
-  void do_close(Promise<> on_finish, bool destroy_flag);
-};
-
-#define G() G_impl(__FILE__, __LINE__)
-
-inline Global *G_impl(const char *file, int line) {
-  ActorContext *context = Scheduler::context();
-  LOG_CHECK(context != nullptr && context->get_id() == Global::ID)
-      << "Context = " << context << " in " << file << " at " << line;
-  return static_cast<Global *>(context);
-}
-
-double get_global_server_time();
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GlobalPrivacySettings.cpp b/third-party/td/td/td/telegram/GlobalPrivacySettings.cpp
deleted file mode 100644
index db189a4fb0..0000000000
--- a/third-party/td/td/td/telegram/GlobalPrivacySettings.cpp
+++ /dev/null
@@ -1,200 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/GlobalPrivacySettings.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/SuggestedActionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class GetGlobalPrivacySettingsQuery final : public Td::ResultHandler {
-  Promise<GlobalPrivacySettings> promise_;
-
- public:
-  explicit GetGlobalPrivacySettingsQuery(Promise<GlobalPrivacySettings> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getGlobalPrivacySettings(), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getGlobalPrivacySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(INFO) << "Receive result for GetGlobalPrivacySettingsQuery: " << to_string(result_ptr.ok());
-    promise_.set_value(GlobalPrivacySettings(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetGlobalPrivacySettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetGlobalPrivacySettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(GlobalPrivacySettings settings) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_setGlobalPrivacySettings(settings.get_input_global_privacy_settings()), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_setGlobalPrivacySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-GlobalPrivacySettings::GlobalPrivacySettings(telegram_api::object_ptr<telegram_api::globalPrivacySettings> &&settings)
-    : archive_and_mute_new_noncontact_peers_(settings->archive_and_mute_new_noncontact_peers_)
-    , keep_archived_unmuted_(settings->keep_archived_unmuted_)
-    , keep_archived_folders_(settings->keep_archived_folders_)
-    , hide_read_marks_(settings->hide_read_marks_)
-    , new_noncontact_peers_require_premium_(settings->new_noncontact_peers_require_premium_)
-    , noncontact_peers_paid_star_count_(StarManager::get_star_count(settings->noncontact_peers_paid_stars_))
-    , gift_settings_(settings->display_gifts_button_, std::move(settings->disallowed_gifts_)) {
-}
-
-GlobalPrivacySettings::GlobalPrivacySettings(td_api::object_ptr<td_api::archiveChatListSettings> &&settings)
-    : set_type_(SetType::Archive) {
-  if (settings != nullptr) {
-    archive_and_mute_new_noncontact_peers_ = settings->archive_and_mute_new_chats_from_unknown_users_;
-    keep_archived_unmuted_ = settings->keep_unmuted_chats_archived_;
-    keep_archived_folders_ = settings->keep_chats_from_folders_archived_;
-  }
-}
-
-GlobalPrivacySettings::GlobalPrivacySettings(td_api::object_ptr<td_api::readDatePrivacySettings> &&settings)
-    : set_type_(SetType::ReadDate) {
-  hide_read_marks_ = settings == nullptr || !settings->show_read_date_;
-}
-
-GlobalPrivacySettings::GlobalPrivacySettings(td_api::object_ptr<td_api::newChatPrivacySettings> &&settings)
-    : set_type_(SetType::NewChat) {
-  new_noncontact_peers_require_premium_ = settings == nullptr || !settings->allow_new_chats_from_unknown_users_;
-  noncontact_peers_paid_star_count_ = settings == nullptr ? 0
-                                                          : clamp(settings->incoming_paid_message_star_count_,
-                                                                  static_cast<int64>(0), static_cast<int64>(1000000));
-}
-
-GlobalPrivacySettings::GlobalPrivacySettings(td_api::object_ptr<td_api::giftSettings> &&settings)
-    : set_type_(SetType::Gift) {
-  gift_settings_ = StarGiftSettings(settings);
-}
-
-void GlobalPrivacySettings::apply_changes(const GlobalPrivacySettings &set_settings) {
-  CHECK(set_type_ == SetType::None);
-  switch (set_settings.set_type_) {
-    case SetType::Archive:
-      archive_and_mute_new_noncontact_peers_ = set_settings.archive_and_mute_new_noncontact_peers_;
-      keep_archived_unmuted_ = set_settings.keep_archived_unmuted_;
-      keep_archived_folders_ = set_settings.keep_archived_folders_;
-      break;
-    case SetType::ReadDate:
-      hide_read_marks_ = set_settings.hide_read_marks_;
-      break;
-    case SetType::NewChat:
-      new_noncontact_peers_require_premium_ = set_settings.new_noncontact_peers_require_premium_;
-      noncontact_peers_paid_star_count_ = set_settings.noncontact_peers_paid_star_count_;
-      break;
-    case SetType::Gift:
-      gift_settings_ = set_settings.gift_settings_;
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::globalPrivacySettings> GlobalPrivacySettings::get_input_global_privacy_settings()
-    const {
-  CHECK(set_type_ == SetType::None);
-  int32 flags = 0;
-  if (noncontact_peers_paid_star_count_ > 0) {
-    flags |= telegram_api::globalPrivacySettings::NONCONTACT_PEERS_PAID_STARS_MASK;
-  }
-  auto gifts_settings = gift_settings_.get_disallowed_gifts().get_input_disallowed_gifts_settings();
-  if (gifts_settings != nullptr) {
-    flags |= telegram_api::globalPrivacySettings::DISALLOWED_GIFTS_MASK;
-  }
-  return telegram_api::make_object<telegram_api::globalPrivacySettings>(
-      flags, archive_and_mute_new_noncontact_peers_, keep_archived_unmuted_, keep_archived_folders_, hide_read_marks_,
-      new_noncontact_peers_require_premium_, gift_settings_.get_display_gifts_button(),
-      noncontact_peers_paid_star_count_, std::move(gifts_settings));
-}
-
-td_api::object_ptr<td_api::archiveChatListSettings> GlobalPrivacySettings::get_archive_chat_list_settings_object()
-    const {
-  CHECK(set_type_ == SetType::None);
-  return td_api::make_object<td_api::archiveChatListSettings>(archive_and_mute_new_noncontact_peers_,
-                                                              keep_archived_unmuted_, keep_archived_folders_);
-}
-
-td_api::object_ptr<td_api::readDatePrivacySettings> GlobalPrivacySettings::get_read_date_privacy_settings_object()
-    const {
-  CHECK(set_type_ == SetType::None);
-  return td_api::make_object<td_api::readDatePrivacySettings>(!hide_read_marks_);
-}
-
-td_api::object_ptr<td_api::newChatPrivacySettings> GlobalPrivacySettings::get_new_chat_privacy_settings_object() const {
-  CHECK(set_type_ == SetType::None);
-  return td_api::make_object<td_api::newChatPrivacySettings>(!new_noncontact_peers_require_premium_,
-                                                             noncontact_peers_paid_star_count_);
-}
-
-void GlobalPrivacySettings::get_global_privacy_settings(Td *td, Promise<GlobalPrivacySettings> &&promise) {
-  td->create_handler<GetGlobalPrivacySettingsQuery>(std::move(promise))->send();
-}
-
-void GlobalPrivacySettings::set_global_privacy_settings(Td *td, GlobalPrivacySettings settings,
-                                                        Promise<Unit> &&promise) {
-  CHECK(settings.set_type_ != SetType::None);
-  if (settings.archive_and_mute_new_noncontact_peers_) {
-    send_closure(td->suggested_action_manager_actor_, &SuggestedActionManager::hide_suggested_action,
-                 SuggestedAction{SuggestedAction::Type::EnableArchiveAndMuteNewChats});
-  }
-
-  get_global_privacy_settings(
-      td, PromiseCreator::lambda([td, set_settings = std::move(settings),
-                                  promise = std::move(promise)](Result<GlobalPrivacySettings> result) mutable {
-        G()->ignore_result_if_closing(result);
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        auto settings = result.move_as_ok();
-        settings.apply_changes(set_settings);
-        td->create_handler<SetGlobalPrivacySettingsQuery>(std::move(promise))->send(std::move(settings));
-      }));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GlobalPrivacySettings.h b/third-party/td/td/td/telegram/GlobalPrivacySettings.h
deleted file mode 100644
index 0d0680a31a..0000000000
--- a/third-party/td/td/td/telegram/GlobalPrivacySettings.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StarGiftSettings.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class GlobalPrivacySettings {
-  enum class SetType : int32 { None, Archive, ReadDate, NewChat, Gift };
-  SetType set_type_ = SetType::None;
-  bool archive_and_mute_new_noncontact_peers_ = false;
-  bool keep_archived_unmuted_ = false;
-  bool keep_archived_folders_ = false;
-  bool hide_read_marks_ = false;
-  bool new_noncontact_peers_require_premium_ = false;
-  int64 noncontact_peers_paid_star_count_ = 0;
-  StarGiftSettings gift_settings_;
-
-  void apply_changes(const GlobalPrivacySettings &set_settings);
-
- public:
-  explicit GlobalPrivacySettings(telegram_api::object_ptr<telegram_api::globalPrivacySettings> &&settings);
-
-  explicit GlobalPrivacySettings(td_api::object_ptr<td_api::archiveChatListSettings> &&settings);
-
-  explicit GlobalPrivacySettings(td_api::object_ptr<td_api::readDatePrivacySettings> &&settings);
-
-  explicit GlobalPrivacySettings(td_api::object_ptr<td_api::newChatPrivacySettings> &&settings);
-
-  explicit GlobalPrivacySettings(td_api::object_ptr<td_api::giftSettings> &&settings);
-
-  telegram_api::object_ptr<telegram_api::globalPrivacySettings> get_input_global_privacy_settings() const;
-
-  td_api::object_ptr<td_api::archiveChatListSettings> get_archive_chat_list_settings_object() const;
-
-  td_api::object_ptr<td_api::readDatePrivacySettings> get_read_date_privacy_settings_object() const;
-
-  td_api::object_ptr<td_api::newChatPrivacySettings> get_new_chat_privacy_settings_object() const;
-
-  static void get_global_privacy_settings(Td *td, Promise<GlobalPrivacySettings> &&promise);
-
-  static void set_global_privacy_settings(Td *td, GlobalPrivacySettings settings, Promise<Unit> &&promise);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallId.h b/third-party/td/td/td/telegram/GroupCallId.h
deleted file mode 100644
index b65e58ba02..0000000000
--- a/third-party/td/td/td/telegram/GroupCallId.h
+++ /dev/null
@@ -1,53 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class GroupCallId {
- public:
-  GroupCallId() = default;
-
-  explicit constexpr GroupCallId(int32 group_call_id) : id(group_call_id) {
-  }
-
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  GroupCallId(T group_call_id) = delete;
-
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const GroupCallId &other) const {
-    return id == other.id;
-  }
-
- private:
-  int32 id{0};
-};
-
-struct GroupCallIdHash {
-  uint32 operator()(GroupCallId group_call_id) const {
-    return Hash<int32>()(group_call_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const GroupCallId group_call_id) {
-  return sb << "group call " << group_call_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallManager.cpp b/third-party/td/td/td/telegram/GroupCallManager.cpp
deleted file mode 100644
index 92ad90976e..0000000000
--- a/third-party/td/td/td/telegram/GroupCallManager.cpp
+++ /dev/null
@@ -1,4914 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/GroupCallManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/CallId.h"
-#include "td/telegram/CallManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogAction.h"
-#include "td/telegram/DialogActionManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipantFilter.h"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <map>
-#include <utility>
-
-namespace td {
-
-class GetGroupCallStreamChannelsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::groupCallStreams>> promise_;
-
- public:
-  explicit GetGroupCallStreamChannelsQuery(Promise<td_api::object_ptr<td_api::groupCallStreams>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, DcId stream_dc_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_getGroupCallStreamChannels(input_group_call_id.get_input_group_call()), {}, stream_dc_id,
-        NetQuery::Type::DownloadSmall));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_getGroupCallStreamChannels>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    auto streams = transform(ptr->channels_, [](const tl_object_ptr<telegram_api::groupCallStreamChannel> &channel) {
-      return td_api::make_object<td_api::groupCallStream>(channel->channel_, channel->scale_,
-                                                          channel->last_timestamp_ms_);
-    });
-    promise_.set_value(td_api::make_object<td_api::groupCallStreams>(std::move(streams)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGroupCallStreamQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit GetGroupCallStreamQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, DcId stream_dc_id, int64 time_offset, int32 scale, int32 channel_id,
-            int32 video_quality) {
-    int32 flags = 0;
-    if (channel_id != 0) {
-      flags |= telegram_api::inputGroupCallStream::VIDEO_CHANNEL_MASK;
-    }
-    auto input_stream = telegram_api::make_object<telegram_api::inputGroupCallStream>(
-        flags, input_group_call_id.get_input_group_call(), time_offset, scale, channel_id, video_quality);
-    auto query = G()->net_query_creator().create(
-        telegram_api::upload_getFile(0, false, false, std::move(input_stream), 0, 1 << 20), {}, stream_dc_id,
-        NetQuery::Type::DownloadSmall);
-    query->total_timeout_limit_ = 0;
-    send_query(std::move(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::upload_getFile>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    if (ptr->get_id() != telegram_api::upload_file::ID) {
-      return on_error(Status::Error(500, "Receive unexpected server response"));
-    }
-
-    auto file = move_tl_object_as<telegram_api::upload_file>(ptr);
-    promise_.set_value(file->bytes_.as_slice().str());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGroupCallJoinAsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::messageSenders>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetGroupCallJoinAsQuery(Promise<td_api::object_ptr<td_api::messageSenders>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(telegram_api::phone_getGroupCallJoinAs(std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_getGroupCallJoinAs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetGroupCallJoinAsQuery: " << to_string(ptr);
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetGroupCallJoinAsQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetGroupCallJoinAsQuery");
-
-    promise_.set_value(convert_message_senders_object(td_, ptr->peers_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetGroupCallJoinAsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SaveDefaultGroupCallJoinAsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SaveDefaultGroupCallJoinAsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, DialogId as_dialog_id) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    auto as_input_peer = td_->dialog_manager_->get_input_peer(as_dialog_id, AccessRights::Read);
-    CHECK(as_input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_saveDefaultGroupCallJoinAs(std::move(input_peer), std::move(as_input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_saveDefaultGroupCallJoinAs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto success = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SaveDefaultGroupCallJoinAsQuery: " << success;
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    // td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetGroupCallJoinAsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CreateGroupCallQuery final : public Td::ResultHandler {
-  Promise<InputGroupCallId> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit CreateGroupCallQuery(Promise<InputGroupCallId> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &title, int32 start_date, bool is_rtmp_stream) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = 0;
-    if (!title.empty()) {
-      flags |= telegram_api::phone_createGroupCall::TITLE_MASK;
-    }
-    if (start_date > 0) {
-      flags |= telegram_api::phone_createGroupCall::SCHEDULE_DATE_MASK;
-    }
-    if (is_rtmp_stream) {
-      flags |= telegram_api::phone_createGroupCall::RTMP_STREAM_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::phone_createGroupCall(
-        flags, false, std::move(input_peer), Random::secure_int32(), title, start_date)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_createGroupCall>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CreateGroupCallQuery: " << to_string(ptr);
-
-    auto group_call_ids = td_->updates_manager_->get_update_new_group_call_ids(ptr.get());
-    if (group_call_ids.empty()) {
-      LOG(ERROR) << "Receive wrong CreateGroupCallQuery response " << to_string(ptr);
-      return on_error(Status::Error(500, "Receive wrong response"));
-    }
-    auto group_call_id = group_call_ids[0];
-    for (const auto &other_group_call_id : group_call_ids) {
-      if (group_call_id != other_group_call_id) {
-        LOG(ERROR) << "Receive wrong CreateGroupCallQuery response " << to_string(ptr);
-        return on_error(Status::Error(500, "Receive wrong response"));
-      }
-    }
-
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr), PromiseCreator::lambda([promise = std::move(promise_), group_call_id](Unit) mutable {
-          promise.set_value(std::move(group_call_id));
-        }));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "CreateGroupCallQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGroupCallRtmpStreamUrlGroupCallQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::rtmpUrl>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetGroupCallRtmpStreamUrlGroupCallQuery(Promise<td_api::object_ptr<td_api::rtmpUrl>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool revoke) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::phone_getGroupCallStreamRtmpUrl(std::move(input_peer), revoke)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_getGroupCallStreamRtmpUrl>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    promise_.set_value(td_api::make_object<td_api::rtmpUrl>(ptr->url_, ptr->key_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetGroupCallRtmpStreamUrlGroupCallQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGroupCallQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::phone_groupCall>> promise_;
-
- public:
-  explicit GetGroupCallQuery(Promise<tl_object_ptr<telegram_api::phone_groupCall>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, int32 limit) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_getGroupCall(input_group_call_id.get_input_group_call(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_getGroupCall>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetGroupCallQuery: " << to_string(ptr);
-
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGroupCallParticipantQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  InputGroupCallId input_group_call_id_;
-
- public:
-  explicit GetGroupCallParticipantQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, vector<tl_object_ptr<telegram_api::InputPeer>> &&input_peers,
-            vector<int32> &&source_ids) {
-    input_group_call_id_ = input_group_call_id;
-    auto limit = narrow_cast<int32>(max(input_peers.size(), source_ids.size()));
-    send_query(G()->net_query_creator().create(telegram_api::phone_getGroupParticipants(
-        input_group_call_id.get_input_group_call(), std::move(input_peers), std::move(source_ids), string(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_getGroupParticipants>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->group_call_manager_->on_get_group_call_participants(input_group_call_id_, result_ptr.move_as_ok(), false,
-                                                             string());
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGroupCallParticipantsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  InputGroupCallId input_group_call_id_;
-  string offset_;
-
- public:
-  explicit GetGroupCallParticipantsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, string offset, int32 limit) {
-    input_group_call_id_ = input_group_call_id;
-    offset_ = std::move(offset);
-    send_query(G()->net_query_creator().create(telegram_api::phone_getGroupParticipants(
-        input_group_call_id.get_input_group_call(), vector<tl_object_ptr<telegram_api::InputPeer>>(), vector<int32>(),
-        offset_, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_getGroupParticipants>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->group_call_manager_->on_get_group_call_participants(input_group_call_id_, result_ptr.move_as_ok(), true,
-                                                             offset_);
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class StartScheduledGroupCallQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit StartScheduledGroupCallQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_startScheduledGroupCall(input_group_call_id.get_input_group_call())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_startScheduledGroupCall>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for StartScheduledGroupCallQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "GROUPCALL_NOT_MODIFIED") {
-      promise_.set_value(Unit());
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class JoinGroupCallQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  InputGroupCallId input_group_call_id_;
-  DialogId as_dialog_id_;
-  uint64 generation_ = 0;
-
- public:
-  explicit JoinGroupCallQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  NetQueryRef send(InputGroupCallId input_group_call_id, DialogId as_dialog_id, const string &payload, bool is_muted,
-                   bool is_video_stopped, const string &invite_hash, int64 key_fingerprint, uint64 generation) {
-    input_group_call_id_ = input_group_call_id;
-    as_dialog_id_ = as_dialog_id;
-    generation_ = generation;
-
-    tl_object_ptr<telegram_api::InputPeer> join_as_input_peer;
-    if (as_dialog_id.is_valid()) {
-      join_as_input_peer = td_->dialog_manager_->get_input_peer(as_dialog_id, AccessRights::Read);
-    } else {
-      join_as_input_peer = make_tl_object<telegram_api::inputPeerSelf>();
-    }
-    CHECK(join_as_input_peer != nullptr);
-
-    int32 flags = 0;
-    if (is_muted) {
-      flags |= telegram_api::phone_joinGroupCall::MUTED_MASK;
-    }
-    if (!invite_hash.empty()) {
-      flags |= telegram_api::phone_joinGroupCall::INVITE_HASH_MASK;
-    }
-    if (is_video_stopped) {
-      flags |= telegram_api::phone_joinGroupCall::VIDEO_STOPPED_MASK;
-    }
-    if (key_fingerprint != 0) {
-      flags |= telegram_api::phone_joinGroupCall::KEY_FINGERPRINT_MASK;
-    }
-    auto query = G()->net_query_creator().create(telegram_api::phone_joinGroupCall(
-        flags, false /*ignored*/, false /*ignored*/, input_group_call_id.get_input_group_call(),
-        std::move(join_as_input_peer), invite_hash, key_fingerprint,
-        telegram_api::make_object<telegram_api::dataJSON>(payload)));
-    auto join_query_ref = query.get_weak();
-    send_query(std::move(query));
-    return join_query_ref;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_joinGroupCall>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for JoinGroupCallQuery with generation " << generation_ << ": " << to_string(ptr);
-    td_->group_call_manager_->process_join_group_call_response(input_group_call_id_, generation_, std::move(ptr),
-                                                               std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class JoinGroupCallPresentationQuery final : public Td::ResultHandler {
-  InputGroupCallId input_group_call_id_;
-  uint64 generation_ = 0;
-
- public:
-  NetQueryRef send(InputGroupCallId input_group_call_id, const string &payload, uint64 generation) {
-    input_group_call_id_ = input_group_call_id;
-    generation_ = generation;
-
-    auto query = G()->net_query_creator().create(telegram_api::phone_joinGroupCallPresentation(
-        input_group_call_id.get_input_group_call(), make_tl_object<telegram_api::dataJSON>(payload)));
-    auto join_query_ref = query.get_weak();
-    send_query(std::move(query));
-    return join_query_ref;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_joinGroupCallPresentation>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for JoinGroupCallPresentationQuery with generation " << generation_ << ": "
-              << to_string(ptr);
-    td_->group_call_manager_->process_join_group_call_presentation_response(input_group_call_id_, generation_,
-                                                                            std::move(ptr), Status::OK());
-  }
-
-  void on_error(Status status) final {
-    td_->group_call_manager_->process_join_group_call_presentation_response(input_group_call_id_, generation_, nullptr,
-                                                                            std::move(status));
-  }
-};
-
-class LeaveGroupCallPresentationQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit LeaveGroupCallPresentationQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_leaveGroupCallPresentation(input_group_call_id.get_input_group_call())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_editGroupCallTitle>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for LeaveGroupCallPresentationQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "PARTICIPANT_PRESENTATION_MISSING") {
-      promise_.set_value(Unit());
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditGroupCallTitleQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit EditGroupCallTitleQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, const string &title) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_editGroupCallTitle(input_group_call_id.get_input_group_call(), title)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_editGroupCallTitle>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditGroupCallTitleQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "GROUPCALL_NOT_MODIFIED") {
-      promise_.set_value(Unit());
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleGroupCallStartSubscriptionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleGroupCallStartSubscriptionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, bool start_subscribed) {
-    send_query(G()->net_query_creator().create(telegram_api::phone_toggleGroupCallStartSubscription(
-        input_group_call_id.get_input_group_call(), start_subscribed)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_toggleGroupCallStartSubscription>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleGroupCallStartSubscriptionQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "GROUPCALL_NOT_MODIFIED") {
-      promise_.set_value(Unit());
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleGroupCallSettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleGroupCallSettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 flags, InputGroupCallId input_group_call_id, bool join_muted) {
-    send_query(G()->net_query_creator().create(telegram_api::phone_toggleGroupCallSettings(
-        flags, false /*ignored*/, input_group_call_id.get_input_group_call(), join_muted)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_toggleGroupCallSettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleGroupCallSettingsQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "GROUPCALL_NOT_MODIFIED") {
-      promise_.set_value(Unit());
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class InviteToGroupCallQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit InviteToGroupCallQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, vector<tl_object_ptr<telegram_api::InputUser>> input_users) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_inviteToGroupCall(input_group_call_id.get_input_group_call(), std::move(input_users))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_inviteToGroupCall>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for InviteToGroupCallQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ExportGroupCallInviteQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit ExportGroupCallInviteQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, bool can_self_unmute) {
-    int32 flags = 0;
-    if (can_self_unmute) {
-      flags |= telegram_api::phone_exportGroupCallInvite::CAN_SELF_UNMUTE_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::phone_exportGroupCallInvite(
-        flags, false /*ignored*/, input_group_call_id.get_input_group_call())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_exportGroupCallInvite>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    promise_.set_value(std::move(ptr->link_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleGroupCallRecordQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleGroupCallRecordQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, bool is_enabled, const string &title, bool record_video,
-            bool use_portrait_orientation) {
-    int32 flags = 0;
-    if (is_enabled) {
-      flags |= telegram_api::phone_toggleGroupCallRecord::START_MASK;
-    }
-    if (!title.empty()) {
-      flags |= telegram_api::phone_toggleGroupCallRecord::TITLE_MASK;
-    }
-    if (record_video) {
-      flags |= telegram_api::phone_toggleGroupCallRecord::VIDEO_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::phone_toggleGroupCallRecord(
-        flags, false /*ignored*/, false /*ignored*/, input_group_call_id.get_input_group_call(), title,
-        use_portrait_orientation)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_toggleGroupCallRecord>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ToggleGroupCallRecordQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "GROUPCALL_NOT_MODIFIED") {
-      promise_.set_value(Unit());
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditGroupCallParticipantQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit EditGroupCallParticipantQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, DialogId dialog_id, bool set_is_mited, bool is_muted,
-            int32 volume_level, bool set_raise_hand, bool raise_hand, bool set_video_is_stopped, bool video_is_stopped,
-            bool set_video_is_paused, bool video_is_paused, bool set_presentation_is_paused,
-            bool presentation_is_paused) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Know);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-    if (set_raise_hand) {
-      flags |= telegram_api::phone_editGroupCallParticipant::RAISE_HAND_MASK;
-    } else if (volume_level) {
-      flags |= telegram_api::phone_editGroupCallParticipant::VOLUME_MASK;
-    } else if (set_is_mited) {
-      flags |= telegram_api::phone_editGroupCallParticipant::MUTED_MASK;
-    } else if (set_video_is_stopped) {
-      flags |= telegram_api::phone_editGroupCallParticipant::VIDEO_STOPPED_MASK;
-    } else if (set_video_is_paused) {
-      flags |= telegram_api::phone_editGroupCallParticipant::VIDEO_PAUSED_MASK;
-    } else if (set_presentation_is_paused) {
-      flags |= telegram_api::phone_editGroupCallParticipant::PRESENTATION_PAUSED_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::phone_editGroupCallParticipant(
-        flags, input_group_call_id.get_input_group_call(), std::move(input_peer), is_muted, volume_level, raise_hand,
-        video_is_stopped, video_is_paused, presentation_is_paused)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_editGroupCallParticipant>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditGroupCallParticipantQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CheckGroupCallQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit CheckGroupCallQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, vector<int32> &&audio_sources) {
-    for (auto &audio_source : audio_sources) {
-      CHECK(audio_source != 0);
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_checkGroupCall(input_group_call_id.get_input_group_call(), std::move(audio_sources))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_checkGroupCall>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    vector<int32> active_audio_sources = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CheckGroupCallQuery: " << active_audio_sources;
-
-    if (!active_audio_sources.empty()) {
-      promise_.set_value(Unit());
-    } else {
-      promise_.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class LeaveGroupCallQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit LeaveGroupCallQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id, int32 audio_source) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_leaveGroupCall(input_group_call_id.get_input_group_call(), audio_source)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_leaveGroupCall>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for LeaveGroupCallQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DiscardGroupCallQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DiscardGroupCallQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputGroupCallId input_group_call_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::phone_discardGroupCall(input_group_call_id.get_input_group_call())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::phone_discardGroupCall>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DiscardGroupCallQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-struct GroupCallManager::GroupCall {
-  GroupCallId group_call_id;
-  DialogId dialog_id;
-  string title;
-  bool is_inited = false;
-  bool is_active = false;
-  bool is_rtmp_stream = false;
-  bool is_joined = false;
-  bool need_rejoin = false;
-  bool is_being_joined = false;
-  bool is_being_left = false;
-  bool is_speaking = false;
-  bool can_self_unmute = false;
-  bool can_be_managed = false;
-  bool has_hidden_listeners = false;
-  bool syncing_participants = false;
-  bool need_syncing_participants = false;
-  bool loaded_all_participants = false;
-  bool start_subscribed = false;
-  bool is_my_video_paused = false;
-  bool is_my_video_enabled = false;
-  bool is_my_presentation_paused = false;
-  bool mute_new_participants = false;
-  bool allowed_toggle_mute_new_participants = false;
-  bool joined_date_asc = false;
-  bool is_video_recorded = false;
-  int32 scheduled_start_date = 0;
-  int32 participant_count = 0;
-  int32 duration = 0;
-  int32 audio_source = 0;
-  int32 joined_date = 0;
-  int32 record_start_date = 0;
-  int32 unmuted_video_count = 0;
-  int32 unmuted_video_limit = 0;
-  DcId stream_dc_id;
-  DialogId as_dialog_id;
-  CallId call_id;
-
-  int32 version = -1;
-  int32 leave_version = -1;
-  int32 title_version = -1;
-  int32 start_subscribed_version = -1;
-  int32 can_enable_video_version = -1;
-  int32 mute_version = -1;
-  int32 stream_dc_id_version = -1;
-  int32 record_start_date_version = -1;
-  int32 scheduled_start_date_version = -1;
-
-  vector<Promise<Unit>> after_join;
-  bool have_pending_start_subscribed = false;
-  bool pending_start_subscribed = false;
-  bool have_pending_is_my_video_paused = false;
-  bool pending_is_my_video_paused = false;
-  bool have_pending_is_my_video_enabled = false;
-  bool pending_is_my_video_enabled = false;
-  bool have_pending_is_my_presentation_paused = false;
-  bool pending_is_my_presentation_paused = false;
-  bool have_pending_mute_new_participants = false;
-  bool pending_mute_new_participants = false;
-  string pending_title;
-  bool have_pending_record_start_date = false;
-  int32 pending_record_start_date = 0;
-  string pending_record_title;
-  bool pending_record_record_video = false;
-  bool pending_record_use_portrait_orientation = false;
-  uint64 toggle_recording_generation = 0;
-};
-
-struct GroupCallManager::GroupCallParticipants {
-  vector<GroupCallParticipant> participants;
-  string next_offset;
-  GroupCallParticipantOrder min_order = GroupCallParticipantOrder::max();
-  bool joined_date_asc = false;
-  int32 local_unmuted_video_count = 0;
-
-  bool are_administrators_loaded = false;
-  vector<DialogId> administrator_dialog_ids;
-
-  struct PendingUpdates {
-    FlatHashMap<DialogId, unique_ptr<GroupCallParticipant>, DialogIdHash> updates;
-  };
-  std::map<int32, PendingUpdates> pending_version_updates_;
-  std::map<int32, PendingUpdates> pending_mute_updates_;
-};
-
-struct GroupCallManager::GroupCallRecentSpeakers {
-  vector<std::pair<DialogId, int32>> users;  // participant + time; sorted by time
-  bool is_changed = false;
-  vector<std::pair<DialogId, bool>> last_sent_users;
-};
-
-struct GroupCallManager::PendingJoinRequest {
-  NetQueryRef query_ref;
-  uint64 generation = 0;
-  int32 audio_source = 0;
-  DialogId as_dialog_id;
-  int64 key_fingerprint = 0;
-  Promise<string> promise;
-};
-
-GroupCallManager::GroupCallManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  update_group_call_participant_order_timeout_.set_callback(on_update_group_call_participant_order_timeout_callback);
-  update_group_call_participant_order_timeout_.set_callback_data(static_cast<void *>(this));
-
-  check_group_call_is_joined_timeout_.set_callback(on_check_group_call_is_joined_timeout_callback);
-  check_group_call_is_joined_timeout_.set_callback_data(static_cast<void *>(this));
-
-  pending_send_speaking_action_timeout_.set_callback(on_pending_send_speaking_action_timeout_callback);
-  pending_send_speaking_action_timeout_.set_callback_data(static_cast<void *>(this));
-
-  recent_speaker_update_timeout_.set_callback(on_recent_speaker_update_timeout_callback);
-  recent_speaker_update_timeout_.set_callback_data(static_cast<void *>(this));
-
-  sync_participants_timeout_.set_callback(on_sync_participants_timeout_callback);
-  sync_participants_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-GroupCallManager::~GroupCallManager() = default;
-
-void GroupCallManager::tear_down() {
-  parent_.reset();
-}
-
-void GroupCallManager::on_update_group_call_participant_order_timeout_callback(void *group_call_manager_ptr,
-                                                                               int64 group_call_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto group_call_manager = static_cast<GroupCallManager *>(group_call_manager_ptr);
-  send_closure_later(group_call_manager->actor_id(group_call_manager),
-                     &GroupCallManager::on_update_group_call_participant_order_timeout,
-                     GroupCallId(narrow_cast<int32>(group_call_id_int)));
-}
-
-void GroupCallManager::on_update_group_call_participant_order_timeout(GroupCallId group_call_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Receive update group call participant order timeout in " << group_call_id;
-  auto input_group_call_id = get_input_group_call_id(group_call_id).move_as_ok();
-
-  if (!need_group_call_participants(input_group_call_id)) {
-    return;
-  }
-
-  bool can_self_unmute = get_group_call_can_self_unmute(input_group_call_id);
-  auto *participants =
-      add_group_call_participants(input_group_call_id, "on_update_group_call_participant_order_timeout");
-  update_group_call_participants_order(input_group_call_id, can_self_unmute, participants,
-                                       "on_update_group_call_participant_order_timeout");
-}
-
-void GroupCallManager::on_check_group_call_is_joined_timeout_callback(void *group_call_manager_ptr,
-                                                                      int64 group_call_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto group_call_manager = static_cast<GroupCallManager *>(group_call_manager_ptr);
-  send_closure_later(group_call_manager->actor_id(group_call_manager),
-                     &GroupCallManager::on_check_group_call_is_joined_timeout,
-                     GroupCallId(narrow_cast<int32>(group_call_id_int)));
-}
-
-void GroupCallManager::on_check_group_call_is_joined_timeout(GroupCallId group_call_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Receive check group call is_joined timeout in " << group_call_id;
-  auto input_group_call_id = get_input_group_call_id(group_call_id).move_as_ok();
-
-  auto *group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited);
-  auto audio_source = group_call->audio_source;
-  if (!group_call->is_joined || group_call->is_being_joined ||
-      check_group_call_is_joined_timeout_.has_timeout(group_call_id.get()) || audio_source == 0) {
-    return;
-  }
-
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), input_group_call_id, audio_source](Result<Unit> &&result) mutable {
-        send_closure(actor_id, &GroupCallManager::finish_check_group_call_is_joined, input_group_call_id, audio_source,
-                     std::move(result));
-      });
-  td_->create_handler<CheckGroupCallQuery>(std::move(promise))->send(input_group_call_id, {audio_source});
-}
-
-void GroupCallManager::on_pending_send_speaking_action_timeout_callback(void *group_call_manager_ptr,
-                                                                        int64 group_call_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto group_call_manager = static_cast<GroupCallManager *>(group_call_manager_ptr);
-  send_closure_later(group_call_manager->actor_id(group_call_manager),
-                     &GroupCallManager::on_send_speaking_action_timeout,
-                     GroupCallId(narrow_cast<int32>(group_call_id_int)));
-}
-
-void GroupCallManager::on_send_speaking_action_timeout(GroupCallId group_call_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Receive send_speaking_action timeout in " << group_call_id;
-  auto input_group_call_id = get_input_group_call_id(group_call_id).move_as_ok();
-
-  auto *group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited && group_call->dialog_id.is_valid());
-  if (!group_call->is_joined || !group_call->is_speaking) {
-    return;
-  }
-
-  CHECK(group_call->as_dialog_id.is_valid());
-  on_user_speaking_in_group_call(group_call_id, group_call->as_dialog_id, false, G()->unix_time());
-
-  pending_send_speaking_action_timeout_.add_timeout_in(group_call_id.get(), 4.0);
-
-  td_->dialog_action_manager_->send_dialog_action(group_call->dialog_id, MessageId(), {},
-                                                  DialogAction::get_speaking_action(), Promise<Unit>());
-}
-
-void GroupCallManager::on_recent_speaker_update_timeout_callback(void *group_call_manager_ptr,
-                                                                 int64 group_call_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto group_call_manager = static_cast<GroupCallManager *>(group_call_manager_ptr);
-  send_closure_later(group_call_manager->actor_id(group_call_manager),
-                     &GroupCallManager::on_recent_speaker_update_timeout,
-                     GroupCallId(narrow_cast<int32>(group_call_id_int)));
-}
-
-void GroupCallManager::on_recent_speaker_update_timeout(GroupCallId group_call_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Receive recent speaker update timeout in " << group_call_id;
-  auto input_group_call_id = get_input_group_call_id(group_call_id).move_as_ok();
-
-  get_recent_speakers(get_group_call(input_group_call_id),
-                      false);  // will update the list and send updateGroupCall if needed
-}
-
-void GroupCallManager::on_sync_participants_timeout_callback(void *group_call_manager_ptr, int64 group_call_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto group_call_manager = static_cast<GroupCallManager *>(group_call_manager_ptr);
-  send_closure_later(group_call_manager->actor_id(group_call_manager), &GroupCallManager::on_sync_participants_timeout,
-                     GroupCallId(narrow_cast<int32>(group_call_id_int)));
-}
-
-void GroupCallManager::on_sync_participants_timeout(GroupCallId group_call_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Receive sync participants timeout in " << group_call_id;
-  auto input_group_call_id = get_input_group_call_id(group_call_id).move_as_ok();
-
-  sync_group_call_participants(input_group_call_id);
-}
-
-bool GroupCallManager::is_group_call_being_joined(InputGroupCallId input_group_call_id) const {
-  return pending_join_requests_.count(input_group_call_id) != 0;
-}
-
-bool GroupCallManager::is_group_call_joined(InputGroupCallId input_group_call_id) const {
-  auto group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr) {
-    return false;
-  }
-  return group_call->is_joined && !group_call->is_being_left;
-}
-
-GroupCallId GroupCallManager::get_group_call_id(InputGroupCallId input_group_call_id, DialogId dialog_id) {
-  if (td_->auth_manager_->is_bot() || !input_group_call_id.is_valid()) {
-    return GroupCallId();
-  }
-  return add_group_call(input_group_call_id, dialog_id)->group_call_id;
-}
-
-Result<InputGroupCallId> GroupCallManager::get_input_group_call_id(GroupCallId group_call_id) {
-  if (!group_call_id.is_valid()) {
-    return Status::Error(400, "Invalid group call identifier specified");
-  }
-  if (group_call_id.get() <= 0 || group_call_id.get() > max_group_call_id_.get()) {
-    return Status::Error(400, "Wrong group call identifier specified");
-  }
-  CHECK(static_cast<size_t>(group_call_id.get()) <= input_group_call_ids_.size());
-  auto input_group_call_id = input_group_call_ids_[group_call_id.get() - 1];
-  LOG(DEBUG) << "Found " << input_group_call_id;
-  return input_group_call_id;
-}
-
-GroupCallId GroupCallManager::get_next_group_call_id(InputGroupCallId input_group_call_id) {
-  max_group_call_id_ = GroupCallId(max_group_call_id_.get() + 1);
-  input_group_call_ids_.push_back(input_group_call_id);
-  return max_group_call_id_;
-}
-
-GroupCallManager::GroupCall *GroupCallManager::add_group_call(InputGroupCallId input_group_call_id,
-                                                              DialogId dialog_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto &group_call = group_calls_[input_group_call_id];
-  if (group_call == nullptr) {
-    group_call = make_unique<GroupCall>();
-    group_call->group_call_id = get_next_group_call_id(input_group_call_id);
-    LOG(INFO) << "Add " << input_group_call_id << " from " << dialog_id << " as " << group_call->group_call_id;
-  }
-  if (!group_call->dialog_id.is_valid()) {
-    group_call->dialog_id = dialog_id;
-  }
-  return group_call.get();
-}
-
-const GroupCallManager::GroupCall *GroupCallManager::get_group_call(InputGroupCallId input_group_call_id) const {
-  auto it = group_calls_.find(input_group_call_id);
-  if (it == group_calls_.end()) {
-    return nullptr;
-  } else {
-    return it->second.get();
-  }
-}
-
-GroupCallManager::GroupCall *GroupCallManager::get_group_call(InputGroupCallId input_group_call_id) {
-  auto it = group_calls_.find(input_group_call_id);
-  if (it == group_calls_.end()) {
-    return nullptr;
-  } else {
-    return it->second.get();
-  }
-}
-
-Status GroupCallManager::can_join_group_calls(DialogId dialog_id) const {
-  TRY_STATUS(td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "can_join_group_calls"));
-  switch (dialog_id.get_type()) {
-    case DialogType::Chat:
-    case DialogType::Channel:
-      break;
-    case DialogType::User:
-      return Status::Error(400, "Chat can't have a voice chat");
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return Status::OK();
-}
-
-Status GroupCallManager::can_manage_group_calls(DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      if (!td_->chat_manager_->get_chat_permissions(chat_id).can_manage_calls()) {
-        return Status::Error(400, "Not enough rights in the chat");
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      if (!td_->chat_manager_->get_channel_permissions(channel_id).can_manage_calls()) {
-        return Status::Error(400, "Not enough rights in the chat");
-      }
-      break;
-    }
-    case DialogType::User:
-    case DialogType::SecretChat:
-      return Status::Error(400, "Chat can't have a voice chat");
-    case DialogType::None:
-      // OK
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return Status::OK();
-}
-
-bool GroupCallManager::can_manage_group_call(InputGroupCallId input_group_call_id) const {
-  auto group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr) {
-    return false;
-  }
-  return can_manage_group_calls(group_call->dialog_id).is_ok();
-}
-
-bool GroupCallManager::get_group_call_can_self_unmute(InputGroupCallId input_group_call_id) const {
-  auto group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited);
-  return group_call->can_self_unmute;
-}
-
-bool GroupCallManager::get_group_call_joined_date_asc(InputGroupCallId input_group_call_id) const {
-  auto group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited);
-  return group_call->joined_date_asc;
-}
-
-void GroupCallManager::get_group_call_join_as(DialogId dialog_id,
-                                              Promise<td_api::object_ptr<td_api::messageSenders>> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_join_group_calls(dialog_id));
-
-  td_->create_handler<GetGroupCallJoinAsQuery>(std::move(promise))->send(dialog_id);
-}
-
-void GroupCallManager::set_group_call_default_join_as(DialogId dialog_id, DialogId as_dialog_id,
-                                                      Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_join_group_calls(dialog_id));
-
-  switch (as_dialog_id.get_type()) {
-    case DialogType::User:
-      if (as_dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-        return promise.set_error(Status::Error(400, "Can't join voice chat as another user"));
-      }
-      break;
-    case DialogType::Chat:
-    case DialogType::Channel:
-      if (!td_->dialog_manager_->have_dialog_force(as_dialog_id, "set_group_call_default_join_as 2")) {
-        return promise.set_error(Status::Error(400, "Participant chat not found"));
-      }
-      break;
-    case DialogType::SecretChat:
-      return promise.set_error(Status::Error(400, "Can't join voice chat as a secret chat"));
-    default:
-      return promise.set_error(Status::Error(400, "Invalid default participant identifier specified"));
-  }
-  if (!td_->dialog_manager_->have_input_peer(as_dialog_id, false, AccessRights::Read)) {
-    return promise.set_error(Status::Error(400, "Can't access specified default participant chat"));
-  }
-
-  td_->create_handler<SaveDefaultGroupCallJoinAsQuery>(std::move(promise))->send(dialog_id, as_dialog_id);
-  td_->messages_manager_->on_update_dialog_default_join_group_call_as_dialog_id(dialog_id, as_dialog_id, true);
-}
-
-void GroupCallManager::create_voice_chat(DialogId dialog_id, string title, int32 start_date, bool is_rtmp_stream,
-                                         Promise<GroupCallId> &&promise) {
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "create_voice_chat"));
-  TRY_STATUS_PROMISE(promise, can_manage_group_calls(dialog_id));
-
-  title = clean_name(title, MAX_TITLE_LENGTH);
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_id, promise = std::move(promise)](Result<InputGroupCallId> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &GroupCallManager::on_voice_chat_created, dialog_id, result.move_as_ok(),
-                       std::move(promise));
-        }
-      });
-  td_->create_handler<CreateGroupCallQuery>(std::move(query_promise))
-      ->send(dialog_id, title, start_date, is_rtmp_stream);
-}
-
-void GroupCallManager::get_voice_chat_rtmp_stream_url(DialogId dialog_id, bool revoke,
-                                                      Promise<td_api::object_ptr<td_api::rtmpUrl>> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "get_voice_chat_rtmp_stream_url"));
-  TRY_STATUS_PROMISE(promise, can_manage_group_calls(dialog_id));
-
-  td_->create_handler<GetGroupCallRtmpStreamUrlGroupCallQuery>(std::move(promise))->send(dialog_id, revoke);
-}
-
-void GroupCallManager::on_voice_chat_created(DialogId dialog_id, InputGroupCallId input_group_call_id,
-                                             Promise<GroupCallId> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (!input_group_call_id.is_valid()) {
-    return promise.set_error(Status::Error(500, "Receive invalid group call identifier"));
-  }
-
-  td_->messages_manager_->on_update_dialog_group_call(dialog_id, true, true, "on_voice_chat_created");
-  td_->messages_manager_->on_update_dialog_group_call_id(dialog_id, input_group_call_id);
-
-  promise.set_value(get_group_call_id(input_group_call_id, dialog_id));
-}
-
-void GroupCallManager::get_group_call(GroupCallId group_call_id,
-                                      Promise<td_api::object_ptr<td_api::groupCall>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto group_call = get_group_call(input_group_call_id);
-  if (group_call != nullptr && group_call->is_inited) {
-    return promise.set_value(get_group_call_object(group_call, get_recent_speakers(group_call, false)));
-  }
-
-  reload_group_call(input_group_call_id, std::move(promise));
-}
-
-void GroupCallManager::on_update_group_call_rights(InputGroupCallId input_group_call_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto group_call = get_group_call(input_group_call_id);
-  if (need_group_call_participants(group_call)) {
-    CHECK(group_call != nullptr && group_call->is_inited);
-    try_load_group_call_administrators(input_group_call_id, group_call->dialog_id);
-
-    auto *group_call_participants = add_group_call_participants(input_group_call_id, "on_update_group_call_rights");
-    if (group_call_participants->are_administrators_loaded) {
-      update_group_call_participants_can_be_muted(
-          input_group_call_id, can_manage_group_calls(group_call->dialog_id).is_ok(), group_call_participants);
-    }
-  }
-
-  if (group_call != nullptr && group_call->is_inited) {
-    bool can_be_managed = group_call->is_active && can_manage_group_calls(group_call->dialog_id).is_ok();
-    if (can_be_managed != group_call->can_be_managed) {
-      group_call->can_be_managed = can_be_managed;
-      send_update_group_call(group_call, "on_update_group_call_rights");
-    }
-  }
-
-  reload_group_call(input_group_call_id, Auto());
-}
-
-void GroupCallManager::reload_group_call(InputGroupCallId input_group_call_id,
-                                         Promise<td_api::object_ptr<td_api::groupCall>> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Bots can't get group call info"));
-  }
-  if (!input_group_call_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid group call identifier specified"));
-  }
-
-  auto &queries = load_group_call_queries_[input_group_call_id];
-  queries.push_back(std::move(promise));
-  if (queries.size() == 1) {
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id](
-                                                    Result<tl_object_ptr<telegram_api::phone_groupCall>> &&result) {
-      send_closure(actor_id, &GroupCallManager::finish_get_group_call, input_group_call_id, std::move(result));
-    });
-    td_->create_handler<GetGroupCallQuery>(std::move(query_promise))->send(input_group_call_id, 3);
-  }
-}
-
-void GroupCallManager::finish_get_group_call(InputGroupCallId input_group_call_id,
-                                             Result<tl_object_ptr<telegram_api::phone_groupCall>> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto it = load_group_call_queries_.find(input_group_call_id);
-  CHECK(it != load_group_call_queries_.end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  load_group_call_queries_.erase(it);
-
-  if (result.is_ok()) {
-    td_->user_manager_->on_get_users(std::move(result.ok_ref()->users_), "finish_get_group_call");
-    td_->chat_manager_->on_get_chats(std::move(result.ok_ref()->chats_), "finish_get_group_call");
-
-    if (update_group_call(result.ok()->call_, DialogId()) != input_group_call_id) {
-      LOG(ERROR) << "Expected " << input_group_call_id << ", but received " << to_string(result.ok());
-      result = Status::Error(500, "Receive another group call");
-    }
-  }
-
-  if (result.is_error()) {
-    fail_promises(promises, result.move_as_error());
-    return;
-  }
-
-  auto call = result.move_as_ok();
-  int32 version = 0;
-  if (call->call_->get_id() == telegram_api::groupCall::ID) {
-    version = static_cast<const telegram_api::groupCall *>(call->call_.get())->version_;
-  }
-  process_group_call_participants(input_group_call_id, std::move(call->participants_), version, string(), true, false);
-  auto group_call = get_group_call(input_group_call_id);
-  if (need_group_call_participants(group_call)) {
-    auto *group_call_participants = add_group_call_participants(input_group_call_id, "finish_get_group_call");
-    if (group_call_participants->next_offset.empty()) {
-      group_call_participants->next_offset = std::move(call->participants_next_offset_);
-    }
-  }
-
-  CHECK(group_call != nullptr && group_call->is_inited);
-  for (auto &promise : promises) {
-    if (promise) {
-      promise.set_value(get_group_call_object(group_call, get_recent_speakers(group_call, false)));
-    }
-  }
-}
-
-void GroupCallManager::finish_check_group_call_is_joined(InputGroupCallId input_group_call_id, int32 audio_source,
-                                                         Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Finish check group call is_joined for " << input_group_call_id;
-
-  if (result.is_error()) {
-    auto message = result.error().message();
-    if (message == "GROUPCALL_JOIN_MISSING" || message == "GROUPCALL_FORBIDDEN" || message == "GROUPCALL_INVALID") {
-      on_group_call_left(input_group_call_id, audio_source, message == "GROUPCALL_JOIN_MISSING");
-    }
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited);
-  CHECK(audio_source != 0);
-  if (!group_call->is_joined || group_call->is_being_joined ||
-      check_group_call_is_joined_timeout_.has_timeout(group_call->group_call_id.get()) ||
-      group_call->audio_source != audio_source) {
-    return;
-  }
-
-  int32 next_timeout = result.is_ok() ? CHECK_GROUP_CALL_IS_JOINED_TIMEOUT : 1;
-  check_group_call_is_joined_timeout_.set_timeout_in(group_call->group_call_id.get(), next_timeout);
-}
-
-const string &GroupCallManager::get_group_call_title(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return group_call->pending_title.empty() ? group_call->title : group_call->pending_title;
-}
-
-bool GroupCallManager::get_group_call_is_joined(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return (group_call->is_joined || group_call->is_being_joined) && !group_call->is_being_left;
-}
-
-bool GroupCallManager::get_group_call_start_subscribed(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return group_call->have_pending_start_subscribed ? group_call->pending_start_subscribed
-                                                   : group_call->start_subscribed;
-}
-
-bool GroupCallManager::get_group_call_is_my_video_paused(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return group_call->have_pending_is_my_video_paused ? group_call->pending_is_my_video_paused
-                                                     : group_call->is_my_video_paused;
-}
-
-bool GroupCallManager::get_group_call_is_my_video_enabled(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return group_call->have_pending_is_my_video_enabled ? group_call->pending_is_my_video_enabled
-                                                      : group_call->is_my_video_enabled;
-}
-
-bool GroupCallManager::get_group_call_is_my_presentation_paused(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return group_call->have_pending_is_my_presentation_paused ? group_call->pending_is_my_presentation_paused
-                                                            : group_call->is_my_presentation_paused;
-}
-
-bool GroupCallManager::get_group_call_mute_new_participants(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return group_call->have_pending_mute_new_participants ? group_call->pending_mute_new_participants
-                                                        : group_call->mute_new_participants;
-}
-
-int32 GroupCallManager::get_group_call_record_start_date(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return group_call->have_pending_record_start_date ? group_call->pending_record_start_date
-                                                    : group_call->record_start_date;
-}
-
-bool GroupCallManager::get_group_call_is_video_recorded(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return group_call->have_pending_record_start_date ? group_call->pending_record_record_video
-                                                    : group_call->is_video_recorded;
-}
-
-bool GroupCallManager::get_group_call_has_recording(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  return get_group_call_record_start_date(group_call) != 0;
-}
-
-bool GroupCallManager::get_group_call_can_enable_video(const GroupCall *group_call) {
-  CHECK(group_call != nullptr);
-  if (group_call->unmuted_video_limit <= 0) {
-    return true;
-  }
-  return group_call->unmuted_video_count < group_call->unmuted_video_limit;
-}
-
-bool GroupCallManager::is_group_call_active(const GroupCall *group_call) {
-  return group_call != nullptr && group_call->is_inited && group_call->is_active;
-}
-
-bool GroupCallManager::need_group_call_participants(InputGroupCallId input_group_call_id) const {
-  return need_group_call_participants(get_group_call(input_group_call_id));
-}
-
-bool GroupCallManager::need_group_call_participants(const GroupCall *group_call) {
-  if (!is_group_call_active(group_call) || group_call->is_being_left) {
-    return false;
-  }
-  if (group_call->is_joined || group_call->need_rejoin || group_call->is_being_joined) {
-    return true;
-  }
-  return false;
-}
-
-void GroupCallManager::on_get_group_call_participants(
-    InputGroupCallId input_group_call_id, tl_object_ptr<telegram_api::phone_groupParticipants> &&participants,
-    bool is_load, const string &offset) {
-  LOG(INFO) << "Receive group call participants: " << to_string(participants);
-
-  CHECK(participants != nullptr);
-  td_->user_manager_->on_get_users(std::move(participants->users_), "on_get_group_call_participants");
-  td_->chat_manager_->on_get_chats(std::move(participants->chats_), "on_get_group_call_participants");
-
-  if (!need_group_call_participants(input_group_call_id)) {
-    return;
-  }
-
-  bool is_sync = is_load && offset.empty();
-  if (is_sync) {
-    auto group_call = get_group_call(input_group_call_id);
-    CHECK(group_call != nullptr && group_call->is_inited);
-    is_sync = group_call->syncing_participants;
-    if (is_sync) {
-      group_call->syncing_participants = false;
-
-      if (group_call->version >= participants->version_) {
-        LOG(INFO) << "Ignore result of outdated participants sync with version " << participants->version_ << " in "
-                  << input_group_call_id << " from " << group_call->dialog_id << ", because current version is "
-                  << group_call->version;
-        return;
-      }
-      LOG(INFO) << "Finish syncing participants in " << input_group_call_id << " from " << group_call->dialog_id
-                << " with version " << participants->version_;
-      group_call->version = participants->version_;
-    }
-  }
-
-  auto is_empty = participants->participants_.empty();
-  process_group_call_participants(input_group_call_id, std::move(participants->participants_), participants->version_,
-                                  offset, is_load, is_sync);
-
-  if (!is_sync) {
-    on_receive_group_call_version(input_group_call_id, participants->version_);
-  }
-
-  if (is_load) {
-    auto *group_call_participants = add_group_call_participants(input_group_call_id, "on_get_group_call_participants");
-    if (group_call_participants->next_offset == offset) {
-      if (!offset.empty() && participants->next_offset_.empty() && group_call_participants->joined_date_asc) {
-        LOG(INFO) << "Ignore empty next_offset";
-      } else {
-        group_call_participants->next_offset = std::move(participants->next_offset_);
-      }
-    }
-
-    if (is_empty || is_sync) {
-      bool need_update = false;
-      auto group_call = get_group_call(input_group_call_id);
-      CHECK(group_call != nullptr && group_call->is_inited);
-      if (is_empty && !group_call->loaded_all_participants) {
-        group_call->loaded_all_participants = true;
-        need_update = true;
-      }
-
-      auto real_participant_count = participants->count_;
-      if (!group_call->is_joined) {
-        real_participant_count++;
-      }
-      if (is_empty) {
-        auto known_participant_count = static_cast<int32>(group_call_participants->participants.size());
-        if (real_participant_count != known_participant_count) {
-          LOG(ERROR) << "Receive participant count " << real_participant_count << ", but know "
-                     << known_participant_count << " participants in " << input_group_call_id << " from "
-                     << group_call->dialog_id;
-          real_participant_count = known_participant_count;
-        }
-      }
-      if (!is_empty && is_sync && group_call->loaded_all_participants && real_participant_count > 50) {
-        group_call->loaded_all_participants = false;
-        need_update = true;
-      }
-      if (real_participant_count != group_call->participant_count) {
-        if (!is_sync) {
-          LOG(ERROR) << "Have participant count " << group_call->participant_count << " instead of "
-                     << real_participant_count << " in " << input_group_call_id << " from " << group_call->dialog_id;
-        }
-        need_update |=
-            set_group_call_participant_count(group_call, real_participant_count, "on_get_group_call_participants 1");
-      }
-      if (process_pending_group_call_participant_updates(input_group_call_id)) {
-        need_update = false;
-      }
-      if (group_call->loaded_all_participants || !group_call_participants->min_order.has_video()) {
-        set_group_call_unmuted_video_count(group_call, group_call_participants->local_unmuted_video_count,
-                                           "on_get_group_call_participants 2");
-      }
-      if (need_update) {
-        send_update_group_call(group_call, "on_get_group_call_participants 3");
-      }
-
-      if (is_sync && group_call->need_syncing_participants) {
-        group_call->need_syncing_participants = false;
-        sync_group_call_participants(input_group_call_id);
-      }
-    }
-  }
-}
-
-GroupCallManager::GroupCallParticipants *GroupCallManager::add_group_call_participants(
-    InputGroupCallId input_group_call_id, const char *source) {
-  LOG_CHECK(need_group_call_participants(input_group_call_id)) << source;
-
-  auto &participants = group_call_participants_[input_group_call_id];
-  if (participants == nullptr) {
-    participants = make_unique<GroupCallParticipants>();
-    participants->joined_date_asc = get_group_call_joined_date_asc(input_group_call_id);
-  }
-  return participants.get();
-}
-
-GroupCallParticipant *GroupCallManager::get_group_call_participant(InputGroupCallId input_group_call_id,
-                                                                   DialogId dialog_id, const char *source) {
-  return get_group_call_participant(add_group_call_participants(input_group_call_id, source), dialog_id);
-}
-
-GroupCallParticipant *GroupCallManager::get_group_call_participant(GroupCallParticipants *group_call_participants,
-                                                                   DialogId dialog_id) const {
-  if (!dialog_id.is_valid()) {
-    return nullptr;
-  }
-  if (dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    for (auto &group_call_participant : group_call_participants->participants) {
-      if (group_call_participant.is_self) {
-        return &group_call_participant;
-      }
-    }
-  } else {
-    for (auto &group_call_participant : group_call_participants->participants) {
-      if (group_call_participant.dialog_id == dialog_id) {
-        return &group_call_participant;
-      }
-    }
-  }
-  return nullptr;
-}
-
-void GroupCallManager::on_update_group_call_participants(
-    InputGroupCallId input_group_call_id, vector<tl_object_ptr<telegram_api::groupCallParticipant>> &&participants,
-    int32 version, bool is_recursive) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  if (!need_group_call_participants(input_group_call_id)) {
-    int32 diff = 0;
-    int32 video_diff = 0;
-    bool need_update = false;
-    auto group_call = get_group_call(input_group_call_id);
-    for (auto &group_call_participant : participants) {
-      GroupCallParticipant participant(group_call_participant, version);
-      if (!participant.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << to_string(group_call_participant);
-        continue;
-      }
-      if (participant.is_self && group_call != nullptr && group_call->is_being_left) {
-        continue;
-      }
-      if (participant.joined_date == 0) {
-        if (group_call == nullptr || version > group_call->leave_version) {
-          diff--;
-          video_diff += participant.video_diff;
-        }
-        remove_recent_group_call_speaker(input_group_call_id, participant.dialog_id);
-      } else {
-        if (group_call == nullptr || version >= group_call->leave_version) {
-          if (participant.is_just_joined) {
-            diff++;
-          }
-          video_diff += participant.video_diff;
-        }
-        on_participant_speaking_in_group_call(input_group_call_id, participant);
-      }
-    }
-
-    if (is_group_call_active(group_call) && group_call->version == -1) {
-      need_update |= set_group_call_participant_count(group_call, group_call->participant_count + diff,
-                                                      "on_update_group_call_participants 1");
-      need_update |= set_group_call_unmuted_video_count(group_call, group_call->unmuted_video_count + video_diff,
-                                                        "on_update_group_call_participants 2");
-    }
-    if (need_update) {
-      send_update_group_call(group_call, "on_update_group_call_participants 3");
-    }
-
-    LOG(INFO) << "Ignore updateGroupCallParticipants in " << input_group_call_id;
-    return;
-  }
-  if (version <= 0) {
-    LOG(ERROR) << "Ignore updateGroupCallParticipants with invalid version " << version << " in "
-               << input_group_call_id;
-    return;
-  }
-  if (participants.empty()) {
-    LOG(INFO) << "Ignore empty updateGroupCallParticipants with version " << version << " in " << input_group_call_id;
-    return;
-  }
-
-  auto *group_call_participants = add_group_call_participants(input_group_call_id, "on_update_group_call_participants");
-  if (!is_recursive) {
-    vector<DialogId> missing_participants;
-    for (auto &group_call_participant : participants) {
-      GroupCallParticipant participant(group_call_participant, version);
-      if (participant.is_valid() && participant.is_min && participant.joined_date != 0 &&
-          get_group_call_participant(group_call_participants, participant.dialog_id) == nullptr) {
-        missing_participants.push_back(participant.dialog_id);
-      }
-    }
-    if (!missing_participants.empty()) {
-      LOG(INFO) << "Can't apply min updates about " << missing_participants << " in " << input_group_call_id;
-      auto input_peers = transform(missing_participants, &DialogManager::get_input_peer_force);
-      auto query_promise =
-          PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id,
-                                  participants = std::move(participants), version](Result<Unit> &&result) mutable {
-            send_closure(actor_id, &GroupCallManager::on_update_group_call_participants, input_group_call_id,
-                         std::move(participants), version, true);
-          });
-      td_->create_handler<GetGroupCallParticipantQuery>(std::move(query_promise))
-          ->send(input_group_call_id, std::move(input_peers), {});
-      return;
-    }
-  }
-
-  auto &pending_version_updates = group_call_participants->pending_version_updates_[version].updates;
-  auto &pending_mute_updates = group_call_participants->pending_mute_updates_[version].updates;
-  LOG(INFO) << "Have " << pending_version_updates.size() << " versioned and " << pending_mute_updates.size()
-            << " mute pending updates for " << input_group_call_id;
-  for (auto &group_call_participant : participants) {
-    GroupCallParticipant participant(group_call_participant, version);
-    if (!participant.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << to_string(group_call_participant);
-      continue;
-    }
-    if (participant.is_min && participant.joined_date != 0) {
-      auto old_participant = get_group_call_participant(group_call_participants, participant.dialog_id);
-      if (old_participant == nullptr) {
-        LOG(ERROR) << "Can't apply min update about " << participant.dialog_id << " in " << input_group_call_id;
-        on_receive_group_call_version(input_group_call_id, version, true);
-        return;
-      }
-
-      participant.update_from(*old_participant);
-      CHECK(!participant.is_min);
-    }
-    auto dialog_id = participant.dialog_id;
-    if (dialog_id.get_type() != DialogType::User && participant.joined_date != 0) {
-      td_->dialog_manager_->force_create_dialog(dialog_id, "on_update_group_call_participants 4", true);
-    }
-
-    bool is_versioned = GroupCallParticipant::is_versioned_update(group_call_participant);
-    LOG(INFO) << "Add " << (is_versioned ? "versioned" : "muted") << " update for " << participant;
-    if (is_versioned) {
-      pending_version_updates[dialog_id] = td::make_unique<GroupCallParticipant>(std::move(participant));
-    } else {
-      pending_mute_updates[dialog_id] = td::make_unique<GroupCallParticipant>(std::move(participant));
-    }
-  }
-
-  process_pending_group_call_participant_updates(input_group_call_id);
-}
-
-bool GroupCallManager::process_pending_group_call_participant_updates(InputGroupCallId input_group_call_id) {
-  if (!need_group_call_participants(input_group_call_id)) {
-    return false;
-  }
-
-  auto participants_it = group_call_participants_.find(input_group_call_id);
-  if (participants_it == group_call_participants_.end()) {
-    return false;
-  }
-  auto group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited);
-  if (group_call->version == -1 || !group_call->is_active) {
-    return false;
-  }
-
-  std::pair<int32, int32> diff{0, 0};
-  bool is_left = false;
-  bool need_rejoin = true;
-  auto &pending_version_updates = participants_it->second->pending_version_updates_;
-  auto &pending_mute_updates = participants_it->second->pending_mute_updates_;
-
-  auto process_mute_updates = [&] {
-    while (!pending_mute_updates.empty()) {
-      auto it = pending_mute_updates.begin();
-      auto version = it->first;
-      if (version > group_call->version) {
-        return;
-      }
-
-      auto &participants = it->second.updates;
-      LOG(INFO) << "Process " << participants.size() << " mute updates for " << input_group_call_id;
-      for (auto &participant_it : participants) {
-        auto &participant = *participant_it.second;
-        on_participant_speaking_in_group_call(input_group_call_id, participant);
-        auto mute_diff = process_group_call_participant(input_group_call_id, std::move(participant));
-        CHECK(mute_diff.first == 0);
-        diff.second += mute_diff.second;
-      }
-      pending_mute_updates.erase(it);
-    }
-  };
-
-  bool need_update = false;
-  while (!pending_version_updates.empty()) {
-    process_mute_updates();
-
-    auto it = pending_version_updates.begin();
-    auto version = it->first;
-    auto &participants = it->second.updates;
-    if (version <= group_call->version) {
-      for (auto &participant_it : participants) {
-        auto &participant = *participant_it.second;
-        on_participant_speaking_in_group_call(input_group_call_id, participant);
-        if (participant.is_self || participant.joined_date != 0) {
-          auto new_diff = process_group_call_participant(input_group_call_id, std::move(participant));
-          diff.first += new_diff.first;
-          diff.second += new_diff.second;
-        }
-      }
-      LOG(INFO) << "Ignore already applied updateGroupCallParticipants with version " << version << " in "
-                << input_group_call_id << " from " << group_call->dialog_id;
-      pending_version_updates.erase(it);
-      continue;
-    }
-
-    if (version == group_call->version + 1) {
-      LOG(INFO) << "Process " << participants.size() << " versioned updates for " << input_group_call_id;
-      group_call->version = version;
-      for (auto &participant_it : participants) {
-        auto &participant = *participant_it.second;
-        if (participant.is_self && group_call->is_joined &&
-            (participant.joined_date == 0) ==
-                is_my_audio_source(input_group_call_id, group_call, participant.audio_source)) {
-          LOG(INFO) << "Leaving " << input_group_call_id << " after processing update with joined date "
-                    << participant.joined_date;
-          is_left = true;
-          if (participant.joined_date != 0) {
-            need_rejoin = false;
-          } else {
-            continue;
-          }
-        }
-        auto new_diff = process_group_call_participant(input_group_call_id, std::move(participant));
-        diff.first += new_diff.first;
-        diff.second += new_diff.second;
-      }
-      pending_version_updates.erase(it);
-    } else {
-      // found a gap
-      if (!group_call->syncing_participants) {
-        LOG(INFO) << "Receive " << participants.size() << " group call participant updates with version " << version
-                  << ", but current version is " << group_call->version;
-        sync_participants_timeout_.add_timeout_in(group_call->group_call_id.get(), 1.0);
-      }
-      break;
-    }
-  }
-
-  process_mute_updates();
-
-  if (!pending_mute_updates.empty()) {
-    on_receive_group_call_version(input_group_call_id, pending_mute_updates.begin()->first);
-  }
-
-  if (pending_version_updates.empty() && pending_mute_updates.empty()) {
-    sync_participants_timeout_.cancel_timeout(group_call->group_call_id.get());
-  }
-
-  need_update |= set_group_call_participant_count(group_call, group_call->participant_count + diff.first,
-                                                  "process_pending_group_call_participant_updates 1");
-  need_update |= set_group_call_unmuted_video_count(group_call, group_call->unmuted_video_count + diff.second,
-                                                    "process_pending_group_call_participant_updates 2");
-  if (is_left && group_call->is_joined) {
-    on_group_call_left_impl(group_call, need_rejoin, "process_pending_group_call_participant_updates 3");
-    need_update = true;
-  }
-  need_update |= try_clear_group_call_participants(input_group_call_id);
-  if (need_update) {
-    send_update_group_call(group_call, "process_pending_group_call_participant_updates 4");
-  }
-
-  return need_update;
-}
-
-bool GroupCallManager::is_my_audio_source(InputGroupCallId input_group_call_id, const GroupCall *group_call,
-                                          int32 audio_source) const {
-  auto it = pending_join_requests_.find(input_group_call_id);
-  if (it == pending_join_requests_.end()) {
-    return audio_source == group_call->audio_source;
-  }
-  CHECK(it->second != nullptr);
-
-  return audio_source == it->second->audio_source;
-}
-
-void GroupCallManager::sync_group_call_participants(InputGroupCallId input_group_call_id) {
-  auto group_call = get_group_call(input_group_call_id);
-  if (!need_group_call_participants(group_call)) {
-    return;
-  }
-  CHECK(group_call != nullptr && group_call->is_inited);
-
-  sync_participants_timeout_.cancel_timeout(group_call->group_call_id.get());
-
-  if (group_call->syncing_participants) {
-    group_call->need_syncing_participants = true;
-    return;
-  }
-  group_call->syncing_participants = true;
-  group_call->need_syncing_participants = false;
-
-  LOG(INFO) << "Force participants synchronization in " << input_group_call_id << " from " << group_call->dialog_id;
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id](
-                                            Result<tl_object_ptr<telegram_api::phone_groupCall>> &&result) {
-    send_closure(actor_id, &GroupCallManager::on_sync_group_call_participants, input_group_call_id, std::move(result));
-  });
-
-  td_->create_handler<GetGroupCallQuery>(std::move(promise))->send(input_group_call_id, 100);
-}
-
-void GroupCallManager::on_sync_group_call_participants(InputGroupCallId input_group_call_id,
-                                                       Result<tl_object_ptr<telegram_api::phone_groupCall>> &&result) {
-  if (G()->close_flag() || !need_group_call_participants(input_group_call_id)) {
-    return;
-  }
-
-  if (result.is_error()) {
-    auto group_call = get_group_call(input_group_call_id);
-    CHECK(group_call != nullptr && group_call->is_inited);
-    CHECK(group_call->syncing_participants);
-    group_call->syncing_participants = false;
-
-    sync_participants_timeout_.add_timeout_in(group_call->group_call_id.get(),
-                                              group_call->need_syncing_participants ? 0.0 : 1.0);
-    return;
-  }
-
-  auto call = result.move_as_ok();
-  if (call->call_->get_id() == telegram_api::groupCall::ID) {
-    auto *group_call = static_cast<const telegram_api::groupCall *>(call->call_.get());
-    auto participants = make_tl_object<telegram_api::phone_groupParticipants>(
-        group_call->participants_count_, std::move(call->participants_), std::move(call->participants_next_offset_),
-        std::move(call->chats_), std::move(call->users_), group_call->version_);
-    on_get_group_call_participants(input_group_call_id, std::move(participants), true, string());
-  }
-
-  if (update_group_call(call->call_, DialogId()) != input_group_call_id) {
-    LOG(ERROR) << "Expected " << input_group_call_id << ", but received " << to_string(result.ok());
-  }
-}
-
-GroupCallParticipantOrder GroupCallManager::get_real_participant_order(bool can_self_unmute,
-                                                                       const GroupCallParticipant &participant,
-                                                                       const GroupCallParticipants *participants) {
-  auto real_order = participant.get_real_order(can_self_unmute, participants->joined_date_asc);
-  if (real_order >= participants->min_order) {
-    return real_order;
-  }
-  if (participant.is_self) {
-    return participants->min_order;
-  }
-  if (real_order.is_valid()) {
-    LOG(DEBUG) << "Order " << real_order << " of " << participant.dialog_id << " is less than last known order "
-               << participants->min_order;
-  }
-  return GroupCallParticipantOrder();
-}
-
-void GroupCallManager::process_group_call_participants(
-    InputGroupCallId input_group_call_id, vector<tl_object_ptr<telegram_api::groupCallParticipant>> &&participants,
-    int32 version, const string &offset, bool is_load, bool is_sync) {
-  // if receive exactly one participant, then the current user is the only participant
-  // there are no reasons to process it independently
-  if (offset.empty() && is_load && participants.size() >= 2 && participants[0]->self_) {
-    GroupCallParticipant participant(participants[0], version);
-    if (participant.is_valid()) {
-      process_my_group_call_participant(input_group_call_id, std::move(participant));
-    }
-    participants.erase(participants.begin());
-  }
-  if (!need_group_call_participants(input_group_call_id)) {
-    for (auto &group_call_participant : participants) {
-      GroupCallParticipant participant(group_call_participant, version);
-      if (!participant.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << to_string(group_call_participant);
-        continue;
-      }
-      if (participant.dialog_id.get_type() != DialogType::User) {
-        td_->dialog_manager_->force_create_dialog(participant.dialog_id, "process_group_call_participants", true);
-      }
-
-      on_participant_speaking_in_group_call(input_group_call_id, participant);
-    }
-    return;
-  }
-
-  FlatHashSet<DialogId, DialogIdHash> old_participant_dialog_ids;
-  if (is_sync) {
-    auto *group_call_participants = add_group_call_participants(input_group_call_id, "process_group_call_participants");
-    for (auto &participant : group_call_participants->participants) {
-      CHECK(participant.dialog_id.is_valid());
-      old_participant_dialog_ids.insert(participant.dialog_id);
-    }
-  }
-
-  auto min_order = GroupCallParticipantOrder::max();
-  DialogId debug_min_order_dialog_id;
-  bool can_self_unmute = get_group_call_can_self_unmute(input_group_call_id);
-  bool joined_date_asc = get_group_call_joined_date_asc(input_group_call_id);
-  for (auto &group_call_participant : participants) {
-    GroupCallParticipant participant(group_call_participant, version);
-    if (!participant.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << to_string(group_call_participant);
-      continue;
-    }
-    if (participant.is_min) {
-      LOG(ERROR) << "Receive unexpected min " << to_string(group_call_participant);
-      continue;
-    }
-    if (participant.dialog_id.get_type() != DialogType::User) {
-      td_->dialog_manager_->force_create_dialog(participant.dialog_id, "process_group_call_participants", true);
-    }
-
-    if (is_load) {
-      auto real_order = participant.get_server_order(can_self_unmute, joined_date_asc);
-      if (real_order > min_order) {
-        LOG(ERROR) << "Receive group call participant " << participant.dialog_id << " with order " << real_order
-                   << " after group call participant " << debug_min_order_dialog_id << " with order " << min_order;
-      } else {
-        min_order = real_order;
-        debug_min_order_dialog_id = participant.dialog_id;
-      }
-    }
-    if (is_sync) {
-      old_participant_dialog_ids.erase(participant.dialog_id);
-    }
-    process_group_call_participant(input_group_call_id, std::move(participant));
-  }
-  if (is_load && participants.empty() && !joined_date_asc) {
-    // If loaded 0 participants and new participants are added to the beginning of the list,
-    // then the end of the list was reached.
-    // Set min_order to the minimum possible value to send updates about all participants with order less than
-    // the current min_order. There can be such participants if the last loaded participant had a fake active_date.
-    min_order = GroupCallParticipantOrder::min();
-  }
-  if (is_sync) {
-    auto *group_call_participants = add_group_call_participants(input_group_call_id, "process_group_call_participants");
-    auto &group_participants = group_call_participants->participants;
-    for (auto participant_it = group_participants.begin(); participant_it != group_participants.end();) {
-      auto &participant = *participant_it;
-      if (old_participant_dialog_ids.count(participant.dialog_id) == 0) {
-        // successfully synced old user
-        ++participant_it;
-        continue;
-      }
-
-      if (participant.is_self) {
-        if (participant.order != min_order) {
-          participant.order = min_order;
-          send_update_group_call_participant(input_group_call_id, participant, "process_group_call_participants self");
-        }
-        ++participant_it;
-        continue;
-      }
-
-      // not synced user and not self, needs to be deleted
-      if (participant.order.is_valid()) {
-        CHECK(participant.order >= group_call_participants->min_order);
-        participant.order = GroupCallParticipantOrder();
-        send_update_group_call_participant(input_group_call_id, participant, "process_group_call_participants sync");
-      }
-      on_remove_group_call_participant(input_group_call_id, participant.dialog_id);
-      group_call_participants->local_unmuted_video_count -= participant.get_has_video();
-      participant_it = group_participants.erase(participant_it);
-    }
-    if (group_call_participants->min_order < min_order) {
-      // if previously known more users, adjust min_order
-      LOG(INFO) << "Decrease min_order from " << group_call_participants->min_order << " to " << min_order << " in "
-                << input_group_call_id;
-      group_call_participants->min_order = min_order;
-      update_group_call_participants_order(input_group_call_id, can_self_unmute, group_call_participants,
-                                           "decrease min_order");
-    }
-  }
-  if (is_load) {
-    auto *group_call_participants = add_group_call_participants(input_group_call_id, "process_group_call_participants");
-    if (group_call_participants->min_order > min_order) {
-      LOG(INFO) << "Increase min_order from " << group_call_participants->min_order << " to " << min_order << " in "
-                << input_group_call_id;
-      group_call_participants->min_order = min_order;
-      update_group_call_participants_order(input_group_call_id, can_self_unmute, group_call_participants,
-                                           "increase min_order");
-    }
-  }
-}
-
-bool GroupCallManager::update_group_call_participant_can_be_muted(bool can_manage,
-                                                                  const GroupCallParticipants *participants,
-                                                                  GroupCallParticipant &participant) {
-  bool is_admin = td::contains(participants->administrator_dialog_ids, participant.dialog_id);
-  return participant.update_can_be_muted(can_manage, is_admin);
-}
-
-void GroupCallManager::update_group_call_participants_can_be_muted(InputGroupCallId input_group_call_id,
-                                                                   bool can_manage,
-                                                                   GroupCallParticipants *participants) {
-  CHECK(participants != nullptr);
-  LOG(INFO) << "Update group call participants can_be_muted in " << input_group_call_id;
-  for (auto &participant : participants->participants) {
-    if (update_group_call_participant_can_be_muted(can_manage, participants, participant) &&
-        participant.order.is_valid()) {
-      send_update_group_call_participant(input_group_call_id, participant,
-                                         "update_group_call_participants_can_be_muted");
-    }
-  }
-}
-
-void GroupCallManager::update_group_call_participants_order(InputGroupCallId input_group_call_id, bool can_self_unmute,
-                                                            GroupCallParticipants *participants, const char *source) {
-  for (auto &participant : participants->participants) {
-    auto new_order = get_real_participant_order(can_self_unmute, participant, participants);
-    if (new_order != participant.order) {
-      participant.order = new_order;
-      send_update_group_call_participant(input_group_call_id, participant, "process_group_call_participants load");
-    }
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited);
-  update_group_call_participant_order_timeout_.set_timeout_in(group_call->group_call_id.get(),
-                                                              UPDATE_GROUP_CALL_PARTICIPANT_ORDER_TIMEOUT);
-}
-
-void GroupCallManager::process_my_group_call_participant(InputGroupCallId input_group_call_id,
-                                                         GroupCallParticipant &&participant) {
-  CHECK(participant.is_valid());
-  CHECK(participant.is_self);
-  if (!need_group_call_participants(input_group_call_id)) {
-    return;
-  }
-  auto my_participant = get_group_call_participant(input_group_call_id, td_->dialog_manager_->get_my_dialog_id(),
-                                                   "process_my_group_call_participant");
-  if (my_participant == nullptr || my_participant->is_fake || my_participant->joined_date < participant.joined_date ||
-      (my_participant->joined_date <= participant.joined_date &&
-       my_participant->audio_source != participant.audio_source)) {
-    process_group_call_participant(input_group_call_id, std::move(participant));
-  }
-}
-
-std::pair<int32, int32> GroupCallManager::process_group_call_participant(InputGroupCallId input_group_call_id,
-                                                                         GroupCallParticipant &&participant) {
-  if (!participant.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << participant;
-    return {0, 0};
-  }
-  if (!need_group_call_participants(input_group_call_id)) {
-    return {0, 0};
-  }
-
-  LOG(INFO) << "Process " << participant << " in " << input_group_call_id;
-
-  if (participant.is_self) {
-    auto *group_call = get_group_call(input_group_call_id);
-    CHECK(group_call != nullptr && group_call->is_inited);
-    auto can_self_unmute = group_call->is_active && !participant.get_is_muted_by_admin();
-    if (can_self_unmute != group_call->can_self_unmute) {
-      group_call->can_self_unmute = can_self_unmute;
-      send_update_group_call(group_call, "process_group_call_participant 1");
-      sync_group_call_participants(input_group_call_id);  // participant order is different for administrators
-    }
-  }
-
-  bool can_self_unmute = get_group_call_can_self_unmute(input_group_call_id);
-  bool can_manage = can_manage_group_call(input_group_call_id);
-  auto *participants = add_group_call_participants(input_group_call_id, "process_group_call_participant");
-  for (size_t i = 0; i < participants->participants.size(); i++) {
-    auto &old_participant = participants->participants[i];
-    if (old_participant.dialog_id == participant.dialog_id || (old_participant.is_self && participant.is_self)) {
-      if (participant.joined_date == 0) {
-        LOG(INFO) << "Remove " << old_participant;
-        if (old_participant.order.is_valid()) {
-          send_update_group_call_participant(input_group_call_id, participant, "process_group_call_participant remove");
-        }
-        on_remove_group_call_participant(input_group_call_id, old_participant.dialog_id);
-        remove_recent_group_call_speaker(input_group_call_id, old_participant.dialog_id);
-        int32 unmuted_video_diff = -old_participant.get_has_video();
-        participants->local_unmuted_video_count += unmuted_video_diff;
-        participants->participants.erase(participants->participants.begin() + i);
-        return {-1, unmuted_video_diff};
-      }
-
-      if (old_participant.version > participant.version) {
-        LOG(INFO) << "Ignore outdated update of " << old_participant.dialog_id;
-        return {0, 0};
-      }
-
-      if (old_participant.dialog_id != participant.dialog_id) {
-        on_remove_group_call_participant(input_group_call_id, old_participant.dialog_id);
-        on_add_group_call_participant(input_group_call_id, participant.dialog_id);
-      }
-
-      participant.update_from(old_participant);
-
-      participant.is_just_joined = false;
-      participant.order = get_real_participant_order(can_self_unmute, participant, participants);
-      update_group_call_participant_can_be_muted(can_manage, participants, participant);
-
-      LOG(INFO) << "Edit " << old_participant << " to " << participant;
-      if (old_participant != participant && (old_participant.order.is_valid() || participant.order.is_valid())) {
-        send_update_group_call_participant(input_group_call_id, participant, "process_group_call_participant edit");
-        if (old_participant.dialog_id != participant.dialog_id) {
-          // delete old self-participant; shouldn't affect correct apps
-          old_participant.order = GroupCallParticipantOrder();
-          send_update_group_call_participant(input_group_call_id, old_participant,
-                                             "process_group_call_participant edit self");
-        }
-      }
-      on_participant_speaking_in_group_call(input_group_call_id, participant);
-      int32 unmuted_video_diff = participant.get_has_video() - old_participant.get_has_video();
-      participants->local_unmuted_video_count += unmuted_video_diff;
-      old_participant = std::move(participant);
-      return {0, unmuted_video_diff};
-    }
-  }
-
-  if (participant.joined_date == 0) {
-    LOG(INFO) << "Remove unknown " << participant;
-    remove_recent_group_call_speaker(input_group_call_id, participant.dialog_id);
-    return {-1, participant.video_diff};
-  }
-
-  CHECK(!participant.is_min);
-  int diff = participant.is_just_joined ? 1 : 0;
-  participant.order = get_real_participant_order(can_self_unmute, participant, participants);
-  if (participant.is_just_joined) {
-    LOG(INFO) << "Add new " << participant;
-  } else {
-    LOG(INFO) << "Receive new " << participant;
-  }
-  participant.is_just_joined = false;
-  participants->local_unmuted_video_count += participant.get_has_video();
-  update_group_call_participant_can_be_muted(can_manage, participants, participant);
-  participants->participants.push_back(std::move(participant));
-  if (participants->participants.back().order.is_valid()) {
-    send_update_group_call_participant(input_group_call_id, participants->participants.back(),
-                                       "process_group_call_participant add");
-  } else {
-    auto *group_call = get_group_call(input_group_call_id);
-    CHECK(group_call != nullptr && group_call->is_inited);
-    if (group_call->loaded_all_participants) {
-      group_call->loaded_all_participants = false;
-      send_update_group_call(group_call, "process_group_call_participant 2");
-    }
-  }
-  on_add_group_call_participant(input_group_call_id, participants->participants.back().dialog_id);
-  on_participant_speaking_in_group_call(input_group_call_id, participants->participants.back());
-  return {diff, participants->participants.back().video_diff};
-}
-
-void GroupCallManager::on_add_group_call_participant(InputGroupCallId input_group_call_id,
-                                                     DialogId participant_dialog_id) {
-  auto &participants = participant_id_to_group_call_id_[participant_dialog_id];
-  CHECK(!td::contains(participants, input_group_call_id));
-  participants.push_back(input_group_call_id);
-}
-
-void GroupCallManager::on_remove_group_call_participant(InputGroupCallId input_group_call_id,
-                                                        DialogId participant_dialog_id) {
-  auto it = participant_id_to_group_call_id_.find(participant_dialog_id);
-  CHECK(it != participant_id_to_group_call_id_.end());
-  bool is_removed = td::remove(it->second, input_group_call_id);
-  CHECK(is_removed);
-  if (it->second.empty()) {
-    participant_id_to_group_call_id_.erase(it);
-  }
-}
-
-void GroupCallManager::on_update_dialog_about(DialogId dialog_id, const string &about, bool from_server) {
-  auto it = participant_id_to_group_call_id_.find(dialog_id);
-  if (it == participant_id_to_group_call_id_.end()) {
-    return;
-  }
-  CHECK(!it->second.empty());
-
-  for (const auto &input_group_call_id : it->second) {
-    auto participant = get_group_call_participant(input_group_call_id, dialog_id, "on_update_dialog_about");
-    CHECK(participant != nullptr);
-    if ((from_server || participant->is_fake) && participant->about != about) {
-      participant->about = about;
-      if (participant->order.is_valid()) {
-        send_update_group_call_participant(input_group_call_id, *participant, "on_update_dialog_about");
-      }
-    }
-  }
-}
-
-int32 GroupCallManager::cancel_join_group_call_request(InputGroupCallId input_group_call_id, GroupCall *group_call) {
-  auto it = pending_join_requests_.find(input_group_call_id);
-  if (it == pending_join_requests_.end()) {
-    CHECK(group_call == nullptr || !group_call->is_being_joined);
-    return 0;
-  }
-  CHECK(group_call != nullptr);
-  CHECK(group_call->is_being_joined);
-  group_call->is_being_joined = false;
-
-  CHECK(it->second != nullptr);
-  if (!it->second->query_ref.empty()) {
-    cancel_query(it->second->query_ref);
-  }
-  it->second->promise.set_error(Status::Error(200, "Canceled"));
-  auto audio_source = it->second->audio_source;
-  pending_join_requests_.erase(it);
-  return audio_source;
-}
-
-int32 GroupCallManager::cancel_join_group_call_presentation_request(InputGroupCallId input_group_call_id) {
-  auto it = pending_join_presentation_requests_.find(input_group_call_id);
-  if (it == pending_join_presentation_requests_.end()) {
-    return 0;
-  }
-
-  CHECK(it->second != nullptr);
-  if (!it->second->query_ref.empty()) {
-    cancel_query(it->second->query_ref);
-  }
-  it->second->promise.set_error(Status::Error(200, "Canceled"));
-  auto audio_source = it->second->audio_source;
-  pending_join_presentation_requests_.erase(it);
-  return audio_source;
-}
-
-void GroupCallManager::get_group_call_streams(GroupCallId group_call_id,
-                                              Promise<td_api::object_ptr<td_api::groupCallStreams>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(input_group_call_id,
-                      PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, promise = std::move(promise)](
-                                                 Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-                        if (result.is_error()) {
-                          promise.set_error(result.move_as_error());
-                        } else {
-                          send_closure(actor_id, &GroupCallManager::get_group_call_streams, group_call_id,
-                                       std::move(promise));
-                        }
-                      }));
-    return;
-  }
-  if (!group_call->is_active || !group_call->stream_dc_id.is_exact()) {
-    return promise.set_error(Status::Error(400, "Group call can't be streamed"));
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(PromiseCreator::lambda(
-          [actor_id = actor_id(this), group_call_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(result.move_as_error());
-            } else {
-              send_closure(actor_id, &GroupCallManager::get_group_call_streams, group_call_id, std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), input_group_call_id, audio_source = group_call->audio_source,
-       promise = std::move(promise)](Result<td_api::object_ptr<td_api::groupCallStreams>> &&result) mutable {
-        send_closure(actor_id, &GroupCallManager::finish_get_group_call_streams, input_group_call_id, audio_source,
-                     std::move(result), std::move(promise));
-      });
-  td_->create_handler<GetGroupCallStreamChannelsQuery>(std::move(query_promise))
-      ->send(input_group_call_id, group_call->stream_dc_id);
-}
-
-void GroupCallManager::finish_get_group_call_streams(InputGroupCallId input_group_call_id, int32 audio_source,
-                                                     Result<td_api::object_ptr<td_api::groupCallStreams>> &&result,
-                                                     Promise<td_api::object_ptr<td_api::groupCallStreams>> &&promise) {
-  if (!G()->close_flag() && result.is_error()) {
-    auto message = result.error().message();
-    if (message == "GROUPCALL_JOIN_MISSING" || message == "GROUPCALL_FORBIDDEN" || message == "GROUPCALL_INVALID") {
-      on_group_call_left(input_group_call_id, audio_source, message == "GROUPCALL_JOIN_MISSING");
-    }
-  }
-
-  promise.set_result(std::move(result));
-}
-
-void GroupCallManager::get_group_call_stream_segment(GroupCallId group_call_id, int64 time_offset, int32 scale,
-                                                     int32 channel_id,
-                                                     td_api::object_ptr<td_api::GroupCallVideoQuality> quality,
-                                                     Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(input_group_call_id,
-                      PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, time_offset, scale, channel_id,
-                                              quality = std::move(quality), promise = std::move(promise)](
-                                                 Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-                        if (result.is_error()) {
-                          promise.set_error(result.move_as_error());
-                        } else {
-                          send_closure(actor_id, &GroupCallManager::get_group_call_stream_segment, group_call_id,
-                                       time_offset, scale, channel_id, std::move(quality), std::move(promise));
-                        }
-                      }));
-    return;
-  }
-  if (!group_call->is_active || !group_call->stream_dc_id.is_exact()) {
-    return promise.set_error(Status::Error(400, "Group call can't be streamed"));
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(PromiseCreator::lambda(
-          [actor_id = actor_id(this), group_call_id, time_offset, scale, channel_id, quality = std::move(quality),
-           promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(result.move_as_error());
-            } else {
-              send_closure(actor_id, &GroupCallManager::get_group_call_stream_segment, group_call_id, time_offset,
-                           scale, channel_id, std::move(quality), std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  int32 video_quality = 0;
-  if (quality != nullptr) {
-    switch (quality->get_id()) {
-      case td_api::groupCallVideoQualityThumbnail::ID:
-        video_quality = 0;
-        break;
-      case td_api::groupCallVideoQualityMedium::ID:
-        video_quality = 1;
-        break;
-      case td_api::groupCallVideoQualityFull::ID:
-        video_quality = 2;
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, audio_source = group_call->audio_source,
-                              promise = std::move(promise)](Result<string> &&result) mutable {
-        send_closure(actor_id, &GroupCallManager::finish_get_group_call_stream_segment, input_group_call_id,
-                     audio_source, std::move(result), std::move(promise));
-      });
-  td_->create_handler<GetGroupCallStreamQuery>(std::move(query_promise))
-      ->send(input_group_call_id, group_call->stream_dc_id, time_offset, scale, channel_id, video_quality);
-}
-
-void GroupCallManager::finish_get_group_call_stream_segment(InputGroupCallId input_group_call_id, int32 audio_source,
-                                                            Result<string> &&result, Promise<string> &&promise) {
-  if (!G()->close_flag()) {
-    if (result.is_ok()) {
-      auto *group_call = get_group_call(input_group_call_id);
-      CHECK(group_call != nullptr);
-      if (group_call->is_inited && check_group_call_is_joined_timeout_.has_timeout(group_call->group_call_id.get())) {
-        check_group_call_is_joined_timeout_.set_timeout_in(group_call->group_call_id.get(),
-                                                           CHECK_GROUP_CALL_IS_JOINED_TIMEOUT);
-      }
-    } else {
-      auto message = result.error().message();
-      if (message == "GROUPCALL_JOIN_MISSING" || message == "GROUPCALL_FORBIDDEN" || message == "GROUPCALL_INVALID") {
-        on_group_call_left(input_group_call_id, audio_source, message == "GROUPCALL_JOIN_MISSING");
-      }
-    }
-  }
-
-  promise.set_result(std::move(result));
-}
-
-void GroupCallManager::start_scheduled_group_call(GroupCallId group_call_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(input_group_call_id,
-                      PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, promise = std::move(promise)](
-                                                 Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-                        if (result.is_error()) {
-                          promise.set_error(result.move_as_error());
-                        } else {
-                          send_closure(actor_id, &GroupCallManager::start_scheduled_group_call, group_call_id,
-                                       std::move(promise));
-                        }
-                      }));
-    return;
-  }
-  if (!group_call->can_be_managed) {
-    return promise.set_error(Status::Error(400, "Not enough rights to start the group call"));
-  }
-  if (!group_call->is_active) {
-    return promise.set_error(Status::Error(400, "Group call already ended"));
-  }
-  if (group_call->scheduled_start_date == 0) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<StartScheduledGroupCallQuery>(std::move(promise))->send(input_group_call_id);
-}
-
-void GroupCallManager::join_group_call(GroupCallId group_call_id, DialogId as_dialog_id, int32 audio_source,
-                                       string &&payload, bool is_muted, bool is_my_video_enabled,
-                                       const string &invite_hash, int64 key_fingerprint, Promise<string> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr);
-  if (group_call->is_inited && !group_call->is_active) {
-    return promise.set_error(Status::Error(400, "Group call is finished"));
-  }
-  bool need_update = false;
-  bool old_is_joined = get_group_call_is_joined(group_call);
-  bool is_rejoin = group_call->need_rejoin;
-  if (group_call->need_rejoin) {
-    group_call->need_rejoin = false;
-    need_update = true;
-  }
-
-  cancel_join_group_call_request(input_group_call_id, group_call);
-
-  bool have_as_dialog_id = true;
-  {
-    auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-    if (!as_dialog_id.is_valid()) {
-      as_dialog_id = my_dialog_id;
-    }
-    auto dialog_type = as_dialog_id.get_type();
-    if (dialog_type == DialogType::User) {
-      if (as_dialog_id != my_dialog_id) {
-        return promise.set_error(Status::Error(400, "Can't join voice chat as another user"));
-      }
-      if (!td_->user_manager_->have_user_force(as_dialog_id.get_user_id(), "join_group_call")) {
-        have_as_dialog_id = false;
-      }
-    } else {
-      if (!td_->dialog_manager_->have_dialog_force(as_dialog_id, "join_group_call")) {
-        return promise.set_error(Status::Error(400, "Join as chat not found"));
-      }
-    }
-    if (!td_->dialog_manager_->have_input_peer(as_dialog_id, false, AccessRights::Read)) {
-      return promise.set_error(Status::Error(400, "Can't access the join as participant"));
-    }
-  }
-
-  if (group_call->is_being_left) {
-    group_call->is_being_left = false;
-  }
-  group_call->is_being_joined = true;
-
-  auto generation = ++join_group_request_generation_;
-  auto &request = pending_join_requests_[input_group_call_id];
-  request = make_unique<PendingJoinRequest>();
-  request->generation = generation;
-  request->audio_source = audio_source;
-  request->as_dialog_id = as_dialog_id;
-  request->key_fingerprint = key_fingerprint;
-  request->promise = std::move(promise);
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), generation, input_group_call_id](Result<Unit> &&result) {
-        CHECK(result.is_error());
-        send_closure(actor_id, &GroupCallManager::finish_join_group_call, input_group_call_id, generation,
-                     result.move_as_error());
-      });
-  request->query_ref = td_->create_handler<JoinGroupCallQuery>(std::move(query_promise))
-                           ->send(input_group_call_id, as_dialog_id, payload, is_muted, !is_my_video_enabled,
-                                  invite_hash, key_fingerprint, generation);
-
-  if (group_call->dialog_id.is_valid()) {
-    td_->messages_manager_->on_update_dialog_default_join_group_call_as_dialog_id(group_call->dialog_id, as_dialog_id,
-                                                                                  true);
-  } else {
-    if (as_dialog_id.get_type() != DialogType::User) {
-      td_->dialog_manager_->force_create_dialog(as_dialog_id, "join_group_call");
-    }
-  }
-  if (group_call->is_inited && have_as_dialog_id) {
-    GroupCallParticipant participant;
-    participant.is_self = true;
-    participant.dialog_id = as_dialog_id;
-    participant.about = td_->dialog_manager_->get_dialog_about(participant.dialog_id);
-    participant.audio_source = audio_source;
-    participant.joined_date = G()->unix_time();
-    // if can_self_unmute has never been inited from self-participant,
-    // it contains reasonable default "!call.mute_new_participants || call.can_be_managed"
-    participant.server_is_muted_by_admin = !group_call->can_self_unmute && !can_manage_group_call(input_group_call_id);
-    participant.server_is_muted_by_themselves = is_muted && !participant.server_is_muted_by_admin;
-    participant.is_just_joined = !is_rejoin;
-    participant.video_diff = get_group_call_can_enable_video(group_call) && is_my_video_enabled;
-    participant.is_fake = true;
-    auto diff = process_group_call_participant(input_group_call_id, std::move(participant));
-    if (diff.first != 0) {
-      CHECK(diff.first == 1);
-      need_update |= set_group_call_participant_count(group_call, group_call->participant_count + diff.first,
-                                                      "join_group_call 1", true);
-    }
-    if (diff.second != 0) {
-      CHECK(diff.second == 1);
-      need_update |= set_group_call_unmuted_video_count(group_call, group_call->unmuted_video_count + diff.second,
-                                                        "join_group_call 2");
-    }
-  }
-  if (group_call->is_my_video_enabled != is_my_video_enabled) {
-    group_call->is_my_video_enabled = is_my_video_enabled;
-    if (!is_my_video_enabled) {
-      group_call->is_my_video_paused = false;
-    }
-    need_update = true;
-  }
-  if (old_is_joined != get_group_call_is_joined(group_call)) {
-    need_update = true;
-  }
-  if (group_call->is_inited && need_update) {
-    send_update_group_call(group_call, "join_group_call 3");
-  }
-
-  try_load_group_call_administrators(input_group_call_id, group_call->dialog_id);
-}
-
-void GroupCallManager::start_group_call_screen_sharing(GroupCallId group_call_id, int32 audio_source, string &&payload,
-                                                       Promise<string> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr);
-  if (!group_call->is_inited || !group_call->is_active) {
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  if (!group_call->is_joined || group_call->is_being_left) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(
-          PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, audio_source, payload = std::move(payload),
-                                  promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-            } else {
-              send_closure(actor_id, &GroupCallManager::start_group_call_screen_sharing, group_call_id, audio_source,
-                           std::move(payload), std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  cancel_join_group_call_presentation_request(input_group_call_id);
-
-  auto generation = ++join_group_request_generation_;
-  auto &request = pending_join_presentation_requests_[input_group_call_id];
-  request = make_unique<PendingJoinRequest>();
-  request->generation = generation;
-  request->audio_source = audio_source;
-  request->promise = std::move(promise);
-
-  request->query_ref =
-      td_->create_handler<JoinGroupCallPresentationQuery>()->send(input_group_call_id, payload, generation);
-
-  bool need_update = false;
-  if (group_call->is_inited && need_update) {
-    send_update_group_call(group_call, "start_group_call_screen_sharing");
-  }
-}
-
-void GroupCallManager::end_group_call_screen_sharing(GroupCallId group_call_id, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr);
-  if (!group_call->is_inited || !group_call->is_active) {
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  if (!group_call->is_joined || group_call->is_being_left) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(PromiseCreator::lambda(
-          [actor_id = actor_id(this), group_call_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-            } else {
-              send_closure(actor_id, &GroupCallManager::end_group_call_screen_sharing, group_call_id,
-                           std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  cancel_join_group_call_presentation_request(input_group_call_id);
-
-  group_call->have_pending_is_my_presentation_paused = false;
-  group_call->pending_is_my_presentation_paused = false;
-
-  td_->create_handler<LeaveGroupCallPresentationQuery>(std::move(promise))->send(input_group_call_id);
-}
-
-void GroupCallManager::try_load_group_call_administrators(InputGroupCallId input_group_call_id, DialogId dialog_id) {
-  if (!dialog_id.is_valid() || !need_group_call_participants(input_group_call_id) ||
-      can_manage_group_calls(dialog_id).is_error()) {
-    LOG(INFO) << "Don't need to load administrators in " << input_group_call_id << " from " << dialog_id;
-    return;
-  }
-
-  auto promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id](Result<DialogParticipants> &&result) {
-        send_closure(actor_id, &GroupCallManager::finish_load_group_call_administrators, input_group_call_id,
-                     std::move(result));
-      });
-  td_->dialog_participant_manager_->search_dialog_participants(
-      dialog_id, string(), 100, DialogParticipantFilter(td_api::make_object<td_api::chatMembersFilterAdministrators>()),
-      std::move(promise));
-}
-
-void GroupCallManager::finish_load_group_call_administrators(InputGroupCallId input_group_call_id,
-                                                             Result<DialogParticipants> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (result.is_error()) {
-    LOG(WARNING) << "Failed to get administrators of " << input_group_call_id << ": " << result.error();
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!need_group_call_participants(group_call)) {
-    return;
-  }
-  CHECK(group_call != nullptr);
-  if (!group_call->dialog_id.is_valid() || !can_manage_group_calls(group_call->dialog_id).is_ok()) {
-    return;
-  }
-
-  vector<DialogId> administrator_dialog_ids;
-  auto participants = result.move_as_ok();
-  for (auto &administrator : participants.participants_) {
-    if (administrator.status_.can_manage_calls() &&
-        administrator.dialog_id_ != td_->dialog_manager_->get_my_dialog_id()) {
-      administrator_dialog_ids.push_back(administrator.dialog_id_);
-    }
-  }
-
-  auto *group_call_participants =
-      add_group_call_participants(input_group_call_id, "finish_load_group_call_administrators");
-  if (group_call_participants->are_administrators_loaded &&
-      group_call_participants->administrator_dialog_ids == administrator_dialog_ids) {
-    return;
-  }
-
-  LOG(INFO) << "Set administrators of " << input_group_call_id << " to " << administrator_dialog_ids;
-  group_call_participants->are_administrators_loaded = true;
-  group_call_participants->administrator_dialog_ids = std::move(administrator_dialog_ids);
-
-  update_group_call_participants_can_be_muted(input_group_call_id, true, group_call_participants);
-}
-
-void GroupCallManager::process_join_group_call_response(InputGroupCallId input_group_call_id, uint64 generation,
-                                                        tl_object_ptr<telegram_api::Updates> &&updates,
-                                                        Promise<Unit> &&promise) {
-  auto it = pending_join_requests_.find(input_group_call_id);
-  if (it == pending_join_requests_.end() || it->second->generation != generation) {
-    LOG(INFO) << "Ignore JoinGroupCallQuery response with " << input_group_call_id << " and generation " << generation;
-    return;
-  }
-
-  td_->updates_manager_->on_get_updates(std::move(updates),
-                                        PromiseCreator::lambda([promise = std::move(promise)](Unit) mutable {
-                                          promise.set_error(Status::Error(500, "Wrong join response received"));
-                                        }));
-}
-
-void GroupCallManager::process_join_group_call_presentation_response(InputGroupCallId input_group_call_id,
-                                                                     uint64 generation,
-                                                                     tl_object_ptr<telegram_api::Updates> &&updates,
-                                                                     Status status) {
-  auto it = pending_join_presentation_requests_.find(input_group_call_id);
-  if (it == pending_join_presentation_requests_.end() || it->second->generation != generation) {
-    LOG(INFO) << "Ignore JoinGroupCallPresentationQuery response with " << input_group_call_id << " and generation "
-              << generation;
-    return;
-  }
-  auto promise = std::move(it->second->promise);
-  pending_join_presentation_requests_.erase(it);
-
-  if (status.is_error()) {
-    return promise.set_error(std::move(status));
-  }
-  CHECK(updates != nullptr);
-
-  string params = UpdatesManager::extract_join_group_call_presentation_params(updates.get());
-  if (params.empty()) {
-    return promise.set_error(
-        Status::Error(500, "Wrong start group call screen sharing response received: parameters are missing"));
-  }
-  td_->updates_manager_->on_get_updates(
-      std::move(updates), PromiseCreator::lambda([params = std::move(params), promise = std::move(promise)](
-                                                     Unit) mutable { promise.set_value(std::move(params)); }));
-}
-
-bool GroupCallManager::on_join_group_call_response(InputGroupCallId input_group_call_id, string json_response) {
-  auto it = pending_join_requests_.find(input_group_call_id);
-  if (it == pending_join_requests_.end()) {
-    return false;
-  }
-  CHECK(it->second != nullptr);
-
-  auto group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr);
-  group_call->is_joined = true;
-  group_call->need_rejoin = false;
-  group_call->is_being_joined = false;
-  group_call->is_being_left = false;
-  group_call->joined_date = G()->unix_time();
-  group_call->audio_source = it->second->audio_source;
-  group_call->as_dialog_id = it->second->as_dialog_id;
-  it->second->promise.set_value(std::move(json_response));
-  if (group_call->audio_source != 0) {
-    check_group_call_is_joined_timeout_.set_timeout_in(group_call->group_call_id.get(),
-                                                       CHECK_GROUP_CALL_IS_JOINED_TIMEOUT);
-  }
-  pending_join_requests_.erase(it);
-  try_clear_group_call_participants(input_group_call_id);
-  process_group_call_after_join_requests(input_group_call_id, "on_join_group_call_response");
-  return true;
-}
-
-void GroupCallManager::finish_join_group_call(InputGroupCallId input_group_call_id, uint64 generation, Status error) {
-  CHECK(error.is_error());
-  auto it = pending_join_requests_.find(input_group_call_id);
-  if (it == pending_join_requests_.end() || (generation != 0 && it->second->generation != generation)) {
-    return;
-  }
-  it->second->promise.set_error(std::move(error));
-  auto as_dialog_id = it->second->as_dialog_id;
-  pending_join_requests_.erase(it);
-
-  if (G()->close_flag()) {
-    return;
-  }
-
-  GroupCall *group_call = get_group_call(input_group_call_id);
-  bool need_update = false;
-  if (group_call != nullptr && group_call->is_being_joined) {
-    bool old_is_joined = get_group_call_is_joined(group_call);
-    group_call->is_being_joined = false;
-    need_update |= old_is_joined != get_group_call_is_joined(group_call);
-  }
-  remove_recent_group_call_speaker(input_group_call_id, as_dialog_id);
-  if (try_clear_group_call_participants(input_group_call_id)) {
-    CHECK(group_call != nullptr);
-    need_update = true;
-  }
-  if (need_update && group_call->is_inited) {
-    send_update_group_call(group_call, "finish_join_group_call");
-  }
-  process_group_call_after_join_requests(input_group_call_id, "finish_join_group_call");
-
-  if (group_call != nullptr && group_call->dialog_id.is_valid()) {
-    update_group_call_dialog(group_call, "finish_join_group_call", false);
-    td_->dialog_manager_->reload_dialog_info_full(group_call->dialog_id, "finish_join_group_call");
-  }
-}
-
-void GroupCallManager::process_group_call_after_join_requests(InputGroupCallId input_group_call_id,
-                                                              const char *source) {
-  GroupCall *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    return;
-  }
-  if (group_call->is_being_joined || group_call->need_rejoin) {
-    LOG(ERROR) << "Failed to process after-join requests from " << source << ": " << group_call->is_being_joined << " "
-               << group_call->need_rejoin;
-    return;
-  }
-  if (group_call->after_join.empty()) {
-    return;
-  }
-
-  if (!group_call->is_active || group_call->is_being_left || !group_call->is_joined) {
-    fail_promises(group_call->after_join, Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  } else {
-    set_promises(group_call->after_join);
-  }
-}
-
-void GroupCallManager::set_group_call_title(GroupCallId group_call_id, string title, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(
-        input_group_call_id,
-        PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, title, promise = std::move(promise)](
-                                   Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &GroupCallManager::set_group_call_title, group_call_id, std::move(title),
-                         std::move(promise));
-          }
-        }));
-    return;
-  }
-  if (!group_call->is_active || !group_call->can_be_managed) {
-    return promise.set_error(Status::Error(400, "Can't change group call title"));
-  }
-
-  title = clean_name(title, MAX_TITLE_LENGTH);
-  if (title == get_group_call_title(group_call)) {
-    return promise.set_value(Unit());
-  }
-
-  // there is no reason to save promise; we will send an update with actual value anyway
-
-  if (group_call->pending_title.empty()) {
-    send_edit_group_call_title_query(input_group_call_id, title);
-  }
-  group_call->pending_title = std::move(title);
-  send_update_group_call(group_call, "set_group_call_title");
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::send_edit_group_call_title_query(InputGroupCallId input_group_call_id, const string &title) {
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, title](Result<Unit> result) {
-    send_closure(actor_id, &GroupCallManager::on_edit_group_call_title, input_group_call_id, title, std::move(result));
-  });
-  td_->create_handler<EditGroupCallTitleQuery>(std::move(promise))->send(input_group_call_id, title);
-}
-
-void GroupCallManager::on_edit_group_call_title(InputGroupCallId input_group_call_id, const string &title,
-                                                Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call)) {
-    return;
-  }
-
-  if (group_call->pending_title != title && group_call->can_be_managed) {
-    // need to send another request
-    send_edit_group_call_title_query(input_group_call_id, group_call->pending_title);
-    return;
-  }
-
-  bool is_different = group_call->pending_title != group_call->title;
-  if (is_different && group_call->can_be_managed) {
-    LOG(ERROR) << "Failed to set title to " << group_call->pending_title << " in " << input_group_call_id << ": "
-               << result.error();
-  }
-  group_call->pending_title.clear();
-  if (is_different) {
-    send_update_group_call(group_call, "on_set_group_call_title failed");
-  }
-}
-
-void GroupCallManager::toggle_group_call_is_my_video_paused(GroupCallId group_call_id, bool is_my_video_paused,
-                                                            Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call)) {
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(
-          PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, is_my_video_paused,
-                                  promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-            } else {
-              send_closure(actor_id, &GroupCallManager::toggle_group_call_is_my_video_paused, group_call_id,
-                           is_my_video_paused, std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  if (is_my_video_paused == get_group_call_is_my_video_paused(group_call)) {
-    return promise.set_value(Unit());
-  }
-
-  // there is no reason to save promise; we will send an update with actual value anyway
-
-  group_call->pending_is_my_video_paused = is_my_video_paused;
-  if (!group_call->have_pending_is_my_video_paused) {
-    group_call->have_pending_is_my_video_paused = true;
-    send_toggle_group_call_is_my_video_paused_query(input_group_call_id, group_call->as_dialog_id, is_my_video_paused);
-  }
-  send_update_group_call(group_call, "toggle_group_call_is_my_video_paused");
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::send_toggle_group_call_is_my_video_paused_query(InputGroupCallId input_group_call_id,
-                                                                       DialogId as_dialog_id, bool is_my_video_paused) {
-  auto promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, is_my_video_paused](Result<Unit> result) {
-        send_closure(actor_id, &GroupCallManager::on_toggle_group_call_is_my_video_paused, input_group_call_id,
-                     is_my_video_paused, std::move(result));
-      });
-  td_->create_handler<EditGroupCallParticipantQuery>(std::move(promise))
-      ->send(input_group_call_id, as_dialog_id, false, false, 0, false, false, false, false, true, is_my_video_paused,
-             false, false);
-}
-
-void GroupCallManager::on_toggle_group_call_is_my_video_paused(InputGroupCallId input_group_call_id,
-                                                               bool is_my_video_paused, Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || !group_call->have_pending_is_my_video_paused) {
-    return;
-  }
-
-  if (result.is_error()) {
-    group_call->have_pending_is_my_video_paused = false;
-    LOG(ERROR) << "Failed to set is_my_video_paused to " << is_my_video_paused << " in " << input_group_call_id << ": "
-               << result.error();
-    if (group_call->pending_is_my_video_paused != group_call->is_my_video_paused) {
-      send_update_group_call(group_call, "on_toggle_group_call_is_my_video_paused failed");
-    }
-  } else {
-    group_call->is_my_video_paused = is_my_video_paused;
-    if (group_call->pending_is_my_video_paused != is_my_video_paused) {
-      // need to send another request
-      send_toggle_group_call_is_my_video_paused_query(input_group_call_id, group_call->as_dialog_id,
-                                                      group_call->pending_is_my_video_paused);
-      return;
-    }
-
-    group_call->have_pending_is_my_video_paused = false;
-  }
-}
-
-void GroupCallManager::toggle_group_call_is_my_video_enabled(GroupCallId group_call_id, bool is_my_video_enabled,
-                                                             Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call)) {
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(
-          PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, is_my_video_enabled,
-                                  promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-            } else {
-              send_closure(actor_id, &GroupCallManager::toggle_group_call_is_my_video_enabled, group_call_id,
-                           is_my_video_enabled, std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  if (is_my_video_enabled == get_group_call_is_my_video_enabled(group_call)) {
-    return promise.set_value(Unit());
-  }
-
-  // there is no reason to save promise; we will send an update with actual value anyway
-
-  group_call->pending_is_my_video_enabled = is_my_video_enabled;
-  if (!group_call->have_pending_is_my_video_enabled) {
-    group_call->have_pending_is_my_video_enabled = true;
-    send_toggle_group_call_is_my_video_enabled_query(input_group_call_id, group_call->as_dialog_id,
-                                                     is_my_video_enabled);
-  }
-  send_update_group_call(group_call, "toggle_group_call_is_my_video_enabled");
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::send_toggle_group_call_is_my_video_enabled_query(InputGroupCallId input_group_call_id,
-                                                                        DialogId as_dialog_id,
-                                                                        bool is_my_video_enabled) {
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), input_group_call_id, is_my_video_enabled](Result<Unit> result) {
-        send_closure(actor_id, &GroupCallManager::on_toggle_group_call_is_my_video_enabled, input_group_call_id,
-                     is_my_video_enabled, std::move(result));
-      });
-  td_->create_handler<EditGroupCallParticipantQuery>(std::move(promise))
-      ->send(input_group_call_id, as_dialog_id, false, false, 0, false, false, true, !is_my_video_enabled, false, false,
-             false, false);
-}
-
-void GroupCallManager::on_toggle_group_call_is_my_video_enabled(InputGroupCallId input_group_call_id,
-                                                                bool is_my_video_enabled, Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || !group_call->have_pending_is_my_video_enabled) {
-    return;
-  }
-
-  if (result.is_error()) {
-    group_call->have_pending_is_my_video_enabled = false;
-    LOG(ERROR) << "Failed to set is_my_video_enabled to " << is_my_video_enabled << " in " << input_group_call_id
-               << ": " << result.error();
-    if (group_call->pending_is_my_video_enabled != group_call->is_my_video_enabled) {
-      send_update_group_call(group_call, "on_toggle_group_call_is_my_video_enabled failed");
-    }
-  } else {
-    group_call->is_my_video_enabled = is_my_video_enabled;
-    if (group_call->pending_is_my_video_enabled != is_my_video_enabled) {
-      // need to send another request
-      send_toggle_group_call_is_my_video_enabled_query(input_group_call_id, group_call->as_dialog_id,
-                                                       group_call->pending_is_my_video_enabled);
-      return;
-    }
-
-    group_call->have_pending_is_my_video_enabled = false;
-  }
-}
-
-void GroupCallManager::toggle_group_call_is_my_presentation_paused(GroupCallId group_call_id,
-                                                                   bool is_my_presentation_paused,
-                                                                   Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call)) {
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(
-          PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, is_my_presentation_paused,
-                                  promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-            } else {
-              send_closure(actor_id, &GroupCallManager::toggle_group_call_is_my_presentation_paused, group_call_id,
-                           is_my_presentation_paused, std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  if (is_my_presentation_paused == get_group_call_is_my_presentation_paused(group_call)) {
-    return promise.set_value(Unit());
-  }
-
-  // there is no reason to save promise; we will send an update with actual value anyway
-
-  group_call->pending_is_my_presentation_paused = is_my_presentation_paused;
-  if (!group_call->have_pending_is_my_presentation_paused) {
-    group_call->have_pending_is_my_presentation_paused = true;
-    send_toggle_group_call_is_my_presentation_paused_query(input_group_call_id, group_call->as_dialog_id,
-                                                           is_my_presentation_paused);
-  }
-  send_update_group_call(group_call, "toggle_group_call_is_my_presentation_paused");
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::send_toggle_group_call_is_my_presentation_paused_query(InputGroupCallId input_group_call_id,
-                                                                              DialogId as_dialog_id,
-                                                                              bool is_my_presentation_paused) {
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), input_group_call_id, is_my_presentation_paused](Result<Unit> result) {
-        send_closure(actor_id, &GroupCallManager::on_toggle_group_call_is_my_presentation_paused, input_group_call_id,
-                     is_my_presentation_paused, std::move(result));
-      });
-  td_->create_handler<EditGroupCallParticipantQuery>(std::move(promise))
-      ->send(input_group_call_id, as_dialog_id, false, false, 0, false, false, false, false, false, false, true,
-             is_my_presentation_paused);
-}
-
-void GroupCallManager::on_toggle_group_call_is_my_presentation_paused(InputGroupCallId input_group_call_id,
-                                                                      bool is_my_presentation_paused,
-                                                                      Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || !group_call->have_pending_is_my_presentation_paused) {
-    return;
-  }
-
-  if (result.is_error()) {
-    group_call->have_pending_is_my_presentation_paused = false;
-    LOG(ERROR) << "Failed to set is_my_presentation_paused to " << is_my_presentation_paused << " in "
-               << input_group_call_id << ": " << result.error();
-    if (group_call->pending_is_my_presentation_paused != group_call->is_my_presentation_paused) {
-      send_update_group_call(group_call, "on_toggle_group_call_is_my_presentation_paused failed");
-    }
-  } else {
-    group_call->is_my_presentation_paused = is_my_presentation_paused;
-    if (group_call->pending_is_my_presentation_paused != is_my_presentation_paused) {
-      // need to send another request
-      send_toggle_group_call_is_my_presentation_paused_query(input_group_call_id, group_call->as_dialog_id,
-                                                             group_call->pending_is_my_presentation_paused);
-      return;
-    }
-
-    group_call->have_pending_is_my_presentation_paused = false;
-  }
-}
-
-void GroupCallManager::toggle_group_call_start_subscribed(GroupCallId group_call_id, bool start_subscribed,
-                                                          Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(input_group_call_id,
-                      PromiseCreator::lambda(
-                          [actor_id = actor_id(this), group_call_id, start_subscribed, promise = std::move(promise)](
-                              Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-                            if (result.is_error()) {
-                              promise.set_error(result.move_as_error());
-                            } else {
-                              send_closure(actor_id, &GroupCallManager::toggle_group_call_start_subscribed,
-                                           group_call_id, start_subscribed, std::move(promise));
-                            }
-                          }));
-    return;
-  }
-  if (!group_call->is_active || group_call->scheduled_start_date <= 0) {
-    return promise.set_error(Status::Error(400, "Group call isn't scheduled"));
-  }
-
-  if (start_subscribed == get_group_call_start_subscribed(group_call)) {
-    return promise.set_value(Unit());
-  }
-
-  // there is no reason to save promise; we will send an update with actual value anyway
-
-  group_call->pending_start_subscribed = start_subscribed;
-  if (!group_call->have_pending_start_subscribed) {
-    group_call->have_pending_start_subscribed = true;
-    send_toggle_group_call_start_subscription_query(input_group_call_id, start_subscribed);
-  }
-  send_update_group_call(group_call, "toggle_group_call_start_subscribed");
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::send_toggle_group_call_start_subscription_query(InputGroupCallId input_group_call_id,
-                                                                       bool start_subscribed) {
-  auto promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, start_subscribed](Result<Unit> result) {
-        send_closure(actor_id, &GroupCallManager::on_toggle_group_call_start_subscription, input_group_call_id,
-                     start_subscribed, std::move(result));
-      });
-  td_->create_handler<ToggleGroupCallStartSubscriptionQuery>(std::move(promise))
-      ->send(input_group_call_id, start_subscribed);
-}
-
-void GroupCallManager::on_toggle_group_call_start_subscription(InputGroupCallId input_group_call_id,
-                                                               bool start_subscribed, Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || !group_call->have_pending_start_subscribed) {
-    return;
-  }
-
-  if (result.is_error()) {
-    group_call->have_pending_start_subscribed = false;
-    LOG(ERROR) << "Failed to set enabled_start_notification to " << start_subscribed << " in " << input_group_call_id
-               << ": " << result.error();
-    if (group_call->pending_start_subscribed != group_call->start_subscribed) {
-      send_update_group_call(group_call, "on_toggle_group_call_start_subscription failed");
-    }
-  } else {
-    if (group_call->pending_start_subscribed != start_subscribed) {
-      // need to send another request
-      send_toggle_group_call_start_subscription_query(input_group_call_id, group_call->pending_start_subscribed);
-      return;
-    }
-
-    group_call->have_pending_start_subscribed = false;
-    if (group_call->start_subscribed != start_subscribed) {
-      LOG(ERROR) << "Failed to set enabled_start_notification to " << start_subscribed << " in " << input_group_call_id;
-      send_update_group_call(group_call, "on_toggle_group_call_start_subscription failed 2");
-    }
-  }
-}
-
-void GroupCallManager::toggle_group_call_mute_new_participants(GroupCallId group_call_id, bool mute_new_participants,
-                                                               Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(input_group_call_id,
-                      PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, mute_new_participants,
-                                              promise = std::move(promise)](
-                                                 Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-                        if (result.is_error()) {
-                          promise.set_error(result.move_as_error());
-                        } else {
-                          send_closure(actor_id, &GroupCallManager::toggle_group_call_mute_new_participants,
-                                       group_call_id, mute_new_participants, std::move(promise));
-                        }
-                      }));
-    return;
-  }
-  if (!group_call->is_active || !group_call->can_be_managed || !group_call->allowed_toggle_mute_new_participants) {
-    return promise.set_error(Status::Error(400, "Can't change mute_new_participants setting"));
-  }
-
-  if (mute_new_participants == get_group_call_mute_new_participants(group_call)) {
-    return promise.set_value(Unit());
-  }
-
-  // there is no reason to save promise; we will send an update with actual value anyway
-
-  group_call->pending_mute_new_participants = mute_new_participants;
-  if (!group_call->have_pending_mute_new_participants) {
-    group_call->have_pending_mute_new_participants = true;
-    send_toggle_group_call_mute_new_participants_query(input_group_call_id, mute_new_participants);
-  }
-  send_update_group_call(group_call, "toggle_group_call_mute_new_participants");
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::send_toggle_group_call_mute_new_participants_query(InputGroupCallId input_group_call_id,
-                                                                          bool mute_new_participants) {
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), input_group_call_id, mute_new_participants](Result<Unit> result) {
-        send_closure(actor_id, &GroupCallManager::on_toggle_group_call_mute_new_participants, input_group_call_id,
-                     mute_new_participants, std::move(result));
-      });
-  int32 flags = telegram_api::phone_toggleGroupCallSettings::JOIN_MUTED_MASK;
-  td_->create_handler<ToggleGroupCallSettingsQuery>(std::move(promise))
-      ->send(flags, input_group_call_id, mute_new_participants);
-}
-
-void GroupCallManager::on_toggle_group_call_mute_new_participants(InputGroupCallId input_group_call_id,
-                                                                  bool mute_new_participants, Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || !group_call->have_pending_mute_new_participants) {
-    return;
-  }
-
-  if (result.is_error()) {
-    group_call->have_pending_mute_new_participants = false;
-    if (group_call->can_be_managed && group_call->allowed_toggle_mute_new_participants) {
-      LOG(ERROR) << "Failed to set mute_new_participants to " << mute_new_participants << " in " << input_group_call_id
-                 << ": " << result.error();
-    }
-    if (group_call->pending_mute_new_participants != group_call->mute_new_participants) {
-      send_update_group_call(group_call, "on_toggle_group_call_mute_new_participants failed");
-    }
-  } else {
-    if (group_call->pending_mute_new_participants != mute_new_participants) {
-      // need to send another request
-      send_toggle_group_call_mute_new_participants_query(input_group_call_id,
-                                                         group_call->pending_mute_new_participants);
-      return;
-    }
-
-    group_call->have_pending_mute_new_participants = false;
-    if (group_call->mute_new_participants != mute_new_participants) {
-      LOG(ERROR) << "Failed to set mute_new_participants to " << mute_new_participants << " in " << input_group_call_id;
-      send_update_group_call(group_call, "on_toggle_group_call_mute_new_participants failed 2");
-    }
-  }
-}
-
-void GroupCallManager::revoke_group_call_invite_link(GroupCallId group_call_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(input_group_call_id,
-                      PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, promise = std::move(promise)](
-                                                 Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-                        if (result.is_error()) {
-                          promise.set_error(result.move_as_error());
-                        } else {
-                          send_closure(actor_id, &GroupCallManager::revoke_group_call_invite_link, group_call_id,
-                                       std::move(promise));
-                        }
-                      }));
-    return;
-  }
-  if (!group_call->is_active || !group_call->can_be_managed) {
-    return promise.set_error(Status::Error(400, "Can't reset invite hash in the group call"));
-  }
-
-  int32 flags = telegram_api::phone_toggleGroupCallSettings::RESET_INVITE_HASH_MASK;
-  td_->create_handler<ToggleGroupCallSettingsQuery>(std::move(promise))->send(flags, input_group_call_id, false);
-}
-
-void GroupCallManager::invite_group_call_participants(GroupCallId group_call_id, vector<UserId> &&user_ids,
-                                                      Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  vector<tl_object_ptr<telegram_api::InputUser>> input_users;
-  auto my_user_id = td_->user_manager_->get_my_id();
-  for (auto user_id : user_ids) {
-    TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-    if (user_id == my_user_id) {
-      // can't invite self
-      continue;
-    }
-    input_users.push_back(std::move(input_user));
-  }
-
-  if (input_users.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<InviteToGroupCallQuery>(std::move(promise))->send(input_group_call_id, std::move(input_users));
-}
-
-void GroupCallManager::get_group_call_invite_link(GroupCallId group_call_id, bool can_self_unmute,
-                                                  Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(input_group_call_id,
-                      PromiseCreator::lambda(
-                          [actor_id = actor_id(this), group_call_id, can_self_unmute, promise = std::move(promise)](
-                              Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-                            if (result.is_error()) {
-                              promise.set_error(result.move_as_error());
-                            } else {
-                              send_closure(actor_id, &GroupCallManager::get_group_call_invite_link, group_call_id,
-                                           can_self_unmute, std::move(promise));
-                            }
-                          }));
-    return;
-  }
-  if (!group_call->is_active) {
-    return promise.set_error(Status::Error(400, "Can't get group call invite link"));
-  }
-
-  if (can_self_unmute && !group_call->can_be_managed) {
-    return promise.set_error(Status::Error(400, "Not enough rights in the group call"));
-  }
-
-  td_->create_handler<ExportGroupCallInviteQuery>(std::move(promise))->send(input_group_call_id, can_self_unmute);
-}
-
-void GroupCallManager::toggle_group_call_recording(GroupCallId group_call_id, bool is_enabled, string title,
-                                                   bool record_video, bool use_portrait_orientation,
-                                                   Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr || !group_call->is_inited) {
-    reload_group_call(
-        input_group_call_id,
-        PromiseCreator::lambda(
-            [actor_id = actor_id(this), group_call_id, is_enabled, title, record_video, use_portrait_orientation,
-             promise = std::move(promise)](Result<td_api::object_ptr<td_api::groupCall>> &&result) mutable {
-              if (result.is_error()) {
-                promise.set_error(result.move_as_error());
-              } else {
-                send_closure(actor_id, &GroupCallManager::toggle_group_call_recording, group_call_id, is_enabled,
-                             std::move(title), record_video, use_portrait_orientation, std::move(promise));
-              }
-            }));
-    return;
-  }
-  if (!group_call->is_active || !group_call->can_be_managed) {
-    return promise.set_error(Status::Error(400, "Can't manage group call recording"));
-  }
-
-  title = clean_name(title, MAX_TITLE_LENGTH);
-
-  if (is_enabled == get_group_call_has_recording(group_call)) {
-    return promise.set_value(Unit());
-  }
-
-  // there is no reason to save promise; we will send an update with actual value anyway
-
-  if (!group_call->have_pending_record_start_date) {
-    send_toggle_group_call_recording_query(input_group_call_id, is_enabled, title, record_video,
-                                           use_portrait_orientation, toggle_recording_generation_ + 1);
-  }
-  group_call->have_pending_record_start_date = true;
-  group_call->pending_record_start_date = is_enabled ? G()->unix_time() : 0;
-  group_call->pending_record_title = std::move(title);
-  group_call->pending_record_record_video = record_video;
-  group_call->pending_record_use_portrait_orientation = use_portrait_orientation;
-  group_call->toggle_recording_generation = ++toggle_recording_generation_;
-  send_update_group_call(group_call, "toggle_group_call_recording");
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::send_toggle_group_call_recording_query(InputGroupCallId input_group_call_id, bool is_enabled,
-                                                              const string &title, bool record_video,
-                                                              bool use_portrait_orientation, uint64 generation) {
-  auto promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, generation](Result<Unit> result) {
-        send_closure(actor_id, &GroupCallManager::on_toggle_group_call_recording, input_group_call_id, generation,
-                     std::move(result));
-      });
-  td_->create_handler<ToggleGroupCallRecordQuery>(std::move(promise))
-      ->send(input_group_call_id, is_enabled, title, record_video, use_portrait_orientation);
-}
-
-void GroupCallManager::on_toggle_group_call_recording(InputGroupCallId input_group_call_id, uint64 generation,
-                                                      Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call)) {
-    return;
-  }
-
-  CHECK(group_call->have_pending_record_start_date);
-
-  if (group_call->toggle_recording_generation != generation && group_call->can_be_managed) {
-    // need to send another request
-    send_toggle_group_call_recording_query(input_group_call_id, group_call->pending_record_start_date != 0,
-                                           group_call->pending_record_title, group_call->pending_record_record_video,
-                                           group_call->pending_record_use_portrait_orientation,
-                                           group_call->toggle_recording_generation);
-    return;
-  }
-
-  auto current_record_start_date = get_group_call_record_start_date(group_call);
-  auto current_is_video_recorded = get_group_call_is_video_recorded(group_call);
-  group_call->have_pending_record_start_date = false;
-  if (current_record_start_date != get_group_call_record_start_date(group_call) ||
-      current_is_video_recorded != get_group_call_is_video_recorded(group_call)) {
-    send_update_group_call(group_call, "on_toggle_group_call_recording");
-  }
-}
-
-void GroupCallManager::set_group_call_participant_is_speaking(GroupCallId group_call_id, int32 audio_source,
-                                                              bool is_speaking, Promise<Unit> &&promise, int32 date) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call)) {
-    return promise.set_value(Unit());
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(
-          PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, audio_source, is_speaking,
-                                  promise = std::move(promise), date](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_value(Unit());
-            } else {
-              send_closure(actor_id, &GroupCallManager::set_group_call_participant_is_speaking, group_call_id,
-                           audio_source, is_speaking, std::move(promise), date);
-            }
-          }));
-      return;
-    }
-    return promise.set_value(Unit());
-  }
-  if (audio_source == 0) {
-    audio_source = group_call->audio_source;
-    if (audio_source == 0) {
-      return promise.set_error(Status::Error(400, "Can't speak without joining the group call"));
-    }
-  }
-
-  bool is_recursive = false;
-  if (date == 0) {
-    date = G()->unix_time();
-  } else {
-    is_recursive = true;
-  }
-  if (group_call->audio_source != 0 && audio_source != group_call->audio_source && !is_recursive && is_speaking &&
-      check_group_call_is_joined_timeout_.has_timeout(group_call_id.get())) {
-    check_group_call_is_joined_timeout_.set_timeout_in(group_call_id.get(), CHECK_GROUP_CALL_IS_JOINED_TIMEOUT);
-  }
-  DialogId dialog_id =
-      set_group_call_participant_is_speaking_by_source(input_group_call_id, audio_source, is_speaking, date);
-  if (!dialog_id.is_valid()) {
-    if (!is_recursive) {
-      auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, audio_source, is_speaking,
-                                                   promise = std::move(promise), date](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_value(Unit());
-        } else {
-          send_closure(actor_id, &GroupCallManager::set_group_call_participant_is_speaking, group_call_id, audio_source,
-                       is_speaking, std::move(promise), date);
-        }
-      });
-      td_->create_handler<GetGroupCallParticipantQuery>(std::move(query_promise))
-          ->send(input_group_call_id, {}, {audio_source});
-    } else {
-      LOG(INFO) << "Failed to find participant with source " << audio_source << " in " << group_call_id << " from "
-                << group_call->dialog_id;
-      promise.set_value(Unit());
-    }
-    return;
-  }
-
-  if (is_speaking) {
-    on_user_speaking_in_group_call(group_call_id, dialog_id, date, false, is_recursive);
-  }
-
-  if (group_call->audio_source == audio_source && group_call->is_speaking != is_speaking) {
-    group_call->is_speaking = is_speaking;
-    if (is_speaking && group_call->dialog_id.is_valid()) {
-      pending_send_speaking_action_timeout_.add_timeout_in(group_call_id.get(), 0.0);
-    }
-  }
-
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::toggle_group_call_participant_is_muted(GroupCallId group_call_id, DialogId dialog_id,
-                                                              bool is_muted, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || group_call->is_being_left) {
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(
-          PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, dialog_id, is_muted,
-                                  promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-            } else {
-              send_closure(actor_id, &GroupCallManager::toggle_group_call_participant_is_muted, group_call_id,
-                           dialog_id, is_muted, std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  auto participants = add_group_call_participants(input_group_call_id, "toggle_group_call_participant_is_muted");
-  auto participant = get_group_call_participant(participants, dialog_id);
-  if (participant == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't find group call participant"));
-  }
-  dialog_id = participant->dialog_id;
-
-  bool can_manage = can_manage_group_call(input_group_call_id);
-  bool is_admin = td::contains(participants->administrator_dialog_ids, dialog_id);
-
-  auto participant_copy = *participant;
-  if (!participant_copy.set_pending_is_muted(is_muted, can_manage, is_admin)) {
-    return promise.set_error(Status::Error(400, PSLICE() << "Can't " << (is_muted ? "" : "un") << "mute user"));
-  }
-  if (participant_copy == *participant) {
-    return promise.set_value(Unit());
-  }
-  *participant = std::move(participant_copy);
-
-  participant->pending_is_muted_generation = ++toggle_is_muted_generation_;
-  if (participant->order.is_valid()) {
-    send_update_group_call_participant(input_group_call_id, *participant, "toggle_group_call_participant_is_muted");
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, dialog_id,
-                                               generation = participant->pending_is_muted_generation,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-      promise = Promise<Unit>();
-    }
-    send_closure(actor_id, &GroupCallManager::on_toggle_group_call_participant_is_muted, input_group_call_id, dialog_id,
-                 generation, std::move(promise));
-  });
-  td_->create_handler<EditGroupCallParticipantQuery>(std::move(query_promise))
-      ->send(input_group_call_id, dialog_id, true, is_muted, 0, false, false, false, false, false, false, false, false);
-}
-
-void GroupCallManager::on_toggle_group_call_participant_is_muted(InputGroupCallId input_group_call_id,
-                                                                 DialogId dialog_id, uint64 generation,
-                                                                 Promise<Unit> &&promise) {
-  if (G()->close_flag()) {
-    return promise.set_value(Unit());
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || group_call->is_being_left || !group_call->is_joined) {
-    return promise.set_value(Unit());
-  }
-
-  auto participants = add_group_call_participants(input_group_call_id, "on_toggle_group_call_participant_is_muted");
-  auto participant = get_group_call_participant(participants, dialog_id);
-  if (participant == nullptr || participant->pending_is_muted_generation != generation) {
-    return promise.set_value(Unit());
-  }
-
-  CHECK(participant->have_pending_is_muted);
-  participant->have_pending_is_muted = false;
-  bool can_manage = can_manage_group_call(input_group_call_id);
-  if (update_group_call_participant_can_be_muted(can_manage, participants, *participant) ||
-      participant->server_is_muted_by_themselves != participant->pending_is_muted_by_themselves ||
-      participant->server_is_muted_by_admin != participant->pending_is_muted_by_admin ||
-      participant->server_is_muted_locally != participant->pending_is_muted_locally) {
-    LOG(ERROR) << "Failed to mute/unmute " << dialog_id << " in " << input_group_call_id;
-    if (participant->order.is_valid()) {
-      send_update_group_call_participant(input_group_call_id, *participant,
-                                         "on_toggle_group_call_participant_is_muted");
-    }
-  }
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::set_group_call_participant_volume_level(GroupCallId group_call_id, DialogId dialog_id,
-                                                               int32 volume_level, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-  if (volume_level < GroupCallParticipant::MIN_VOLUME_LEVEL || volume_level > GroupCallParticipant::MAX_VOLUME_LEVEL) {
-    return promise.set_error(Status::Error(400, "Wrong volume level specified"));
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || group_call->is_being_left) {
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(
-          PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, dialog_id, volume_level,
-                                  promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-            } else {
-              send_closure(actor_id, &GroupCallManager::set_group_call_participant_volume_level, group_call_id,
-                           dialog_id, volume_level, std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  auto participant =
-      get_group_call_participant(input_group_call_id, dialog_id, "set_group_call_participant_volume_level");
-  if (participant == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't find group call participant"));
-  }
-  dialog_id = participant->dialog_id;
-
-  if (participant->is_self) {
-    return promise.set_error(Status::Error(400, "Can't change self volume level"));
-  }
-
-  if (participant->get_volume_level() == volume_level) {
-    return promise.set_value(Unit());
-  }
-
-  participant->pending_volume_level = volume_level;
-  participant->pending_volume_level_generation = ++set_volume_level_generation_;
-  if (participant->order.is_valid()) {
-    send_update_group_call_participant(input_group_call_id, *participant, "set_group_call_participant_volume_level");
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, dialog_id,
-                                               generation = participant->pending_volume_level_generation,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-      promise = Promise<Unit>();
-    }
-    send_closure(actor_id, &GroupCallManager::on_set_group_call_participant_volume_level, input_group_call_id,
-                 dialog_id, generation, std::move(promise));
-  });
-  td_->create_handler<EditGroupCallParticipantQuery>(std::move(query_promise))
-      ->send(input_group_call_id, dialog_id, false, false, volume_level, false, false, false, false, false, false,
-             false, false);
-}
-
-void GroupCallManager::on_set_group_call_participant_volume_level(InputGroupCallId input_group_call_id,
-                                                                  DialogId dialog_id, uint64 generation,
-                                                                  Promise<Unit> &&promise) {
-  if (G()->close_flag()) {
-    return promise.set_value(Unit());
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || group_call->is_being_left || !group_call->is_joined) {
-    return promise.set_value(Unit());
-  }
-
-  auto participant =
-      get_group_call_participant(input_group_call_id, dialog_id, "on_set_group_call_participant_volume_level");
-  if (participant == nullptr || participant->pending_volume_level_generation != generation) {
-    return promise.set_value(Unit());
-  }
-
-  CHECK(participant->pending_volume_level != 0);
-  if (participant->volume_level != participant->pending_volume_level) {
-    LOG(ERROR) << "Failed to set volume level of " << dialog_id << " in " << input_group_call_id;
-    participant->pending_volume_level = 0;
-    if (participant->order.is_valid()) {
-      send_update_group_call_participant(input_group_call_id, *participant,
-                                         "on_set_group_call_participant_volume_level");
-    }
-  } else {
-    participant->pending_volume_level = 0;
-  }
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::toggle_group_call_participant_is_hand_raised(GroupCallId group_call_id, DialogId dialog_id,
-                                                                    bool is_hand_raised, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || group_call->is_being_left) {
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  if (!group_call->is_joined) {
-    if (group_call->is_being_joined || group_call->need_rejoin) {
-      group_call->after_join.push_back(
-          PromiseCreator::lambda([actor_id = actor_id(this), group_call_id, dialog_id, is_hand_raised,
-                                  promise = std::move(promise)](Result<Unit> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-            } else {
-              send_closure(actor_id, &GroupCallManager::toggle_group_call_participant_is_hand_raised, group_call_id,
-                           dialog_id, is_hand_raised, std::move(promise));
-            }
-          }));
-      return;
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-
-  auto participants = add_group_call_participants(input_group_call_id, "toggle_group_call_participant_is_hand_raised");
-  auto participant = get_group_call_participant(participants, dialog_id);
-  if (participant == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't find group call participant"));
-  }
-  dialog_id = participant->dialog_id;
-
-  if (is_hand_raised == participant->get_is_hand_raised()) {
-    return promise.set_value(Unit());
-  }
-
-  if (!participant->is_self) {
-    if (is_hand_raised) {
-      return promise.set_error(Status::Error(400, "Can't raise others hand"));
-    } else {
-      if (!can_manage_group_call(input_group_call_id)) {
-        return promise.set_error(Status::Error(400, "Have not enough rights in the group call"));
-      }
-    }
-  }
-
-  participant->have_pending_is_hand_raised = true;
-  participant->pending_is_hand_raised = is_hand_raised;
-  participant->pending_is_hand_raised_generation = ++toggle_is_hand_raised_generation_;
-  if (participant->order.is_valid()) {
-    send_update_group_call_participant(input_group_call_id, *participant,
-                                       "toggle_group_call_participant_is_hand_raised");
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, dialog_id,
-                                               generation = participant->pending_is_hand_raised_generation,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-      promise = Promise<Unit>();
-    }
-    send_closure(actor_id, &GroupCallManager::on_toggle_group_call_participant_is_hand_raised, input_group_call_id,
-                 dialog_id, generation, std::move(promise));
-  });
-  td_->create_handler<EditGroupCallParticipantQuery>(std::move(query_promise))
-      ->send(input_group_call_id, dialog_id, false, false, 0, true, is_hand_raised, false, false, false, false, false,
-             false);
-}
-
-void GroupCallManager::on_toggle_group_call_participant_is_hand_raised(InputGroupCallId input_group_call_id,
-                                                                       DialogId dialog_id, uint64 generation,
-                                                                       Promise<Unit> &&promise) {
-  if (G()->close_flag()) {
-    return promise.set_value(Unit());
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || group_call->is_being_left || !group_call->is_joined) {
-    return promise.set_value(Unit());
-  }
-
-  auto participant =
-      get_group_call_participant(input_group_call_id, dialog_id, "on_toggle_group_call_participant_is_hand_raised");
-  if (participant == nullptr || participant->pending_is_hand_raised_generation != generation) {
-    return promise.set_value(Unit());
-  }
-
-  CHECK(participant->have_pending_is_hand_raised);
-  participant->have_pending_is_hand_raised = false;
-  if (participant->get_is_hand_raised() != participant->pending_is_hand_raised) {
-    LOG(ERROR) << "Failed to change raised hand state for " << dialog_id << " in " << input_group_call_id;
-    if (participant->order.is_valid()) {
-      send_update_group_call_participant(input_group_call_id, *participant,
-                                         "on_toggle_group_call_participant_is_hand_raised");
-    }
-  }
-  promise.set_value(Unit());
-}
-
-void GroupCallManager::load_group_call_participants(GroupCallId group_call_id, int32 limit, Promise<Unit> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!need_group_call_participants(group_call)) {
-    return promise.set_error(Status::Error(400, "Can't load group call participants"));
-  }
-  CHECK(group_call != nullptr && group_call->is_inited);
-  if (group_call->loaded_all_participants) {
-    return promise.set_value(Unit());
-  }
-
-  string next_offset;
-  auto participants_it = group_call_participants_.find(input_group_call_id);
-  if (participants_it != group_call_participants_.end()) {
-    CHECK(participants_it->second != nullptr);
-    next_offset = participants_it->second->next_offset;
-  }
-  if (limit == 1 && next_offset.empty()) {
-    // prevent removing self as the first user and deducing that there are no more participants
-    limit = 2;
-  }
-  td_->create_handler<GetGroupCallParticipantsQuery>(std::move(promise))
-      ->send(input_group_call_id, std::move(next_offset), limit);
-}
-
-void GroupCallManager::leave_group_call(GroupCallId group_call_id, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!is_group_call_active(group_call) || group_call->is_being_left || !group_call->is_joined) {
-    if (group_call != nullptr) {
-      bool old_is_joined = get_group_call_is_joined(group_call);
-      if (cancel_join_group_call_request(input_group_call_id, group_call) != 0) {
-        if (try_clear_group_call_participants(input_group_call_id) ||
-            old_is_joined != get_group_call_is_joined(group_call)) {
-          send_update_group_call(group_call, "leave_group_call 1");
-        }
-        process_group_call_after_join_requests(input_group_call_id, "leave_group_call 1");
-        return promise.set_value(Unit());
-      }
-    }
-    if (group_call != nullptr && group_call->need_rejoin) {
-      group_call->need_rejoin = false;
-      send_update_group_call(group_call, "leave_group_call");
-      if (try_clear_group_call_participants(input_group_call_id)) {
-        send_update_group_call(group_call, "leave_group_call 2");
-      }
-      process_group_call_after_join_requests(input_group_call_id, "leave_group_call 2");
-      return promise.set_value(Unit());
-    }
-    return promise.set_error(Status::Error(400, "GROUPCALL_JOIN_MISSING"));
-  }
-  auto audio_source = cancel_join_group_call_request(input_group_call_id, group_call);
-  if (audio_source == 0) {
-    audio_source = group_call->audio_source;
-  }
-  group_call->is_being_left = true;
-  group_call->need_rejoin = false;
-  group_call->pending_is_my_video_enabled = false;
-  group_call->have_pending_is_my_video_enabled = true;
-  group_call->is_my_video_paused = false;
-  group_call->have_pending_is_my_video_paused = true;
-  try_clear_group_call_participants(input_group_call_id);
-  send_update_group_call(group_call, "leave_group_call");
-
-  process_group_call_after_join_requests(input_group_call_id, "leave_group_call 3");
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), input_group_call_id, audio_source,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_ok()) {
-      // just in case
-      send_closure(actor_id, &GroupCallManager::on_group_call_left, input_group_call_id, audio_source, false);
-    }
-    promise.set_result(std::move(result));
-  });
-  td_->create_handler<LeaveGroupCallQuery>(std::move(query_promise))->send(input_group_call_id, audio_source);
-}
-
-void GroupCallManager::on_group_call_left(InputGroupCallId input_group_call_id, int32 audio_source, bool need_rejoin) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited);
-  if (group_call->is_joined && group_call->audio_source == audio_source) {
-    on_group_call_left_impl(group_call, need_rejoin, "on_group_call_left");
-    send_update_group_call(group_call, "on_group_call_left");
-  }
-}
-
-void GroupCallManager::on_group_call_left_impl(GroupCall *group_call, bool need_rejoin, const char *source) {
-  CHECK(group_call != nullptr && group_call->is_inited && group_call->is_joined);
-  LOG(INFO) << "Leave " << group_call->group_call_id << " in " << group_call->dialog_id
-            << " with need_rejoin = " << need_rejoin << " from " << source;
-  group_call->is_joined = false;
-  group_call->need_rejoin = need_rejoin && !group_call->is_being_left;
-  if (group_call->need_rejoin && group_call->dialog_id.is_valid()) {
-    auto dialog_id = group_call->dialog_id;
-    if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read) ||
-        (dialog_id.get_type() == DialogType::Chat &&
-         !td_->chat_manager_->get_chat_status(dialog_id.get_chat_id()).is_member())) {
-      group_call->need_rejoin = false;
-    }
-  }
-  group_call->is_being_left = false;
-  group_call->is_speaking = false;
-  group_call->is_my_video_paused = false;
-  group_call->is_my_video_enabled = false;
-  group_call->is_my_presentation_paused = false;
-  group_call->have_pending_is_my_video_enabled = false;
-  group_call->have_pending_is_my_video_paused = false;
-  if (!group_call->is_active) {
-    group_call->can_be_managed = false;
-  }
-  group_call->joined_date = 0;
-  group_call->audio_source = 0;
-  check_group_call_is_joined_timeout_.cancel_timeout(group_call->group_call_id.get());
-  auto input_group_call_id = get_input_group_call_id(group_call->group_call_id).ok();
-  try_clear_group_call_participants(input_group_call_id);
-  if (!group_call->need_rejoin) {
-    if (group_call->is_being_joined) {
-      LOG(ERROR) << "Left a being joined group call. Did you change audio_source_id without leaving the group call?";
-    } else {
-      process_group_call_after_join_requests(input_group_call_id, "on_group_call_left_impl");
-    }
-  }
-}
-
-void GroupCallManager::discard_group_call(GroupCallId group_call_id, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_group_call_id, get_input_group_call_id(group_call_id));
-  td_->create_handler<DiscardGroupCallQuery>(std::move(promise))->send(input_group_call_id);
-}
-
-void GroupCallManager::on_update_group_call_connection(string &&connection_params) {
-  if (!pending_group_call_join_params_.empty()) {
-    LOG(ERROR) << "Receive duplicate connection params";
-  }
-  pending_group_call_join_params_ = std::move(connection_params);
-}
-
-void GroupCallManager::on_update_group_call(tl_object_ptr<telegram_api::GroupCall> group_call_ptr, DialogId dialog_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (dialog_id != DialogId() && !dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive " << to_string(group_call_ptr) << " in invalid " << dialog_id;
-    dialog_id = DialogId();
-  }
-  auto input_group_call_id = update_group_call(group_call_ptr, dialog_id);
-  if (input_group_call_id.is_valid()) {
-    LOG(INFO) << "Update " << input_group_call_id << " from " << dialog_id;
-  } else {
-    LOG(ERROR) << "Receive invalid " << to_string(group_call_ptr);
-  }
-}
-
-bool GroupCallManager::try_clear_group_call_participants(InputGroupCallId input_group_call_id) {
-  auto group_call = get_group_call(input_group_call_id);
-  if (need_group_call_participants(group_call)) {
-    return false;
-  }
-  if (group_call != nullptr) {
-    update_group_call_participant_order_timeout_.cancel_timeout(group_call->group_call_id.get());
-    remove_recent_group_call_speaker(input_group_call_id, group_call->as_dialog_id);
-  }
-
-  auto participants_it = group_call_participants_.find(input_group_call_id);
-  if (participants_it == group_call_participants_.end()) {
-    return false;
-  }
-
-  auto participants = std::move(participants_it->second);
-  CHECK(participants != nullptr);
-  group_call_participants_.erase(participants_it);
-
-  CHECK(group_call != nullptr && group_call->is_inited);
-  LOG(INFO) << "Clear participants in " << input_group_call_id << " from " << group_call->dialog_id;
-  bool need_update = false;
-  if (group_call->loaded_all_participants) {
-    group_call->loaded_all_participants = false;
-    need_update = true;
-  }
-  group_call->leave_version = group_call->version;
-  group_call->version = -1;
-
-  for (auto &participant : participants->participants) {
-    if (participant.order.is_valid()) {
-      CHECK(participant.order >= participants->min_order);
-      participant.order = GroupCallParticipantOrder();
-      send_update_group_call_participant(input_group_call_id, participant, "try_clear_group_call_participants 1");
-
-      if (participant.is_self) {
-        need_update |= set_group_call_participant_count(group_call, group_call->participant_count - 1,
-                                                        "try_clear_group_call_participants 2");
-        if (participant.get_has_video()) {
-          need_update |= set_group_call_unmuted_video_count(group_call, group_call->unmuted_video_count - 1,
-                                                            "try_clear_group_call_participants 3");
-        }
-      }
-    }
-    on_remove_group_call_participant(input_group_call_id, participant.dialog_id);
-  }
-  participants->local_unmuted_video_count = 0;
-
-  if (group_call_participants_.empty()) {
-    CHECK(participant_id_to_group_call_id_.empty());
-  }
-  return need_update;
-}
-
-InputGroupCallId GroupCallManager::update_group_call(const tl_object_ptr<telegram_api::GroupCall> &group_call_ptr,
-                                                     DialogId dialog_id) {
-  CHECK(group_call_ptr != nullptr);
-
-  InputGroupCallId input_group_call_id;
-  GroupCall call;
-  call.is_inited = true;
-
-  switch (group_call_ptr->get_id()) {
-    case telegram_api::groupCall::ID: {
-      auto group_call = static_cast<const telegram_api::groupCall *>(group_call_ptr.get());
-      input_group_call_id = InputGroupCallId(group_call->id_, group_call->access_hash_);
-      call.is_active = true;
-      call.is_rtmp_stream = group_call->rtmp_stream_;
-      call.has_hidden_listeners = group_call->listeners_hidden_;
-      call.title = group_call->title_;
-      call.start_subscribed = group_call->schedule_start_subscribed_;
-      call.mute_new_participants = group_call->join_muted_;
-      call.joined_date_asc = group_call->join_date_asc_;
-      call.allowed_toggle_mute_new_participants = group_call->can_change_join_muted_;
-      call.participant_count = group_call->participants_count_;
-      call.unmuted_video_count = group_call->unmuted_video_count_;
-      call.unmuted_video_limit = group_call->unmuted_video_limit_;
-      if ((group_call->flags_ & telegram_api::groupCall::STREAM_DC_ID_MASK) != 0) {
-        call.stream_dc_id = DcId::create(group_call->stream_dc_id_);
-        if (!call.stream_dc_id.is_exact()) {
-          LOG(ERROR) << "Receive invalid stream DC ID " << call.stream_dc_id << " in " << input_group_call_id;
-          call.stream_dc_id = DcId();
-        }
-      } else {
-        call.stream_dc_id = DcId();
-      }
-      if ((group_call->flags_ & telegram_api::groupCall::RECORD_START_DATE_MASK) != 0) {
-        call.record_start_date = group_call->record_start_date_;
-        call.is_video_recorded = group_call->record_video_active_;
-        if (call.record_start_date <= 0) {
-          LOG(ERROR) << "Receive invalid record start date " << group_call->record_start_date_ << " in "
-                     << input_group_call_id;
-          call.record_start_date = 0;
-          call.is_video_recorded = false;
-        }
-      } else {
-        call.record_start_date = 0;
-        call.is_video_recorded = false;
-      }
-      if ((group_call->flags_ & telegram_api::groupCall::SCHEDULE_DATE_MASK) != 0) {
-        call.scheduled_start_date = group_call->schedule_date_;
-        if (call.scheduled_start_date <= 0) {
-          LOG(ERROR) << "Receive invalid scheduled start date " << group_call->schedule_date_ << " in "
-                     << input_group_call_id;
-          call.scheduled_start_date = 0;
-        }
-      } else {
-        call.scheduled_start_date = 0;
-      }
-      if (call.scheduled_start_date == 0) {
-        call.start_subscribed = false;
-      }
-      call.call_id = td_->call_manager_->get_call_id(group_call->conference_from_call_);
-
-      call.version = group_call->version_;
-      call.title_version = group_call->version_;
-      call.can_enable_video_version = group_call->version_;
-      call.start_subscribed_version = group_call->version_;
-      call.mute_version = group_call->version_;
-      call.stream_dc_id_version = group_call->version_;
-      call.record_start_date_version = group_call->version_;
-      call.scheduled_start_date_version = group_call->version_;
-      break;
-    }
-    case telegram_api::groupCallDiscarded::ID: {
-      auto group_call = static_cast<const telegram_api::groupCallDiscarded *>(group_call_ptr.get());
-      input_group_call_id = InputGroupCallId(group_call->id_, group_call->access_hash_);
-      call.duration = group_call->duration_;
-      finish_join_group_call(input_group_call_id, 0, Status::Error(400, "Group call ended"));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  if (!input_group_call_id.is_valid() || call.participant_count < 0) {
-    return {};
-  }
-
-  string join_params = std::move(pending_group_call_join_params_);
-  pending_group_call_join_params_.clear();
-
-  bool need_update = false;
-  auto *group_call = add_group_call(input_group_call_id, dialog_id);
-  call.group_call_id = group_call->group_call_id;
-  call.dialog_id = dialog_id.is_valid() ? dialog_id : group_call->dialog_id;
-  call.can_be_managed = call.is_active && can_manage_group_calls(call.dialog_id).is_ok();
-  call.can_self_unmute = call.is_active && (!call.mute_new_participants || call.can_be_managed);
-  if (!group_call->dialog_id.is_valid()) {
-    group_call->dialog_id = dialog_id;
-  }
-  if (call.is_active && join_params.empty() && !group_call->is_joined &&
-      (group_call->need_rejoin || group_call->is_being_joined)) {
-    call.participant_count++;
-  }
-  LOG(INFO) << "Update " << call.group_call_id << " with " << group_call->participant_count
-            << " participants and version " << group_call->version;
-  if (!group_call->is_inited) {
-    call.is_joined = group_call->is_joined;
-    call.need_rejoin = group_call->need_rejoin;
-    call.is_being_left = group_call->is_being_left;
-    call.is_speaking = group_call->is_speaking;
-    call.is_my_video_paused = group_call->is_my_video_paused;
-    call.is_my_video_enabled = group_call->is_my_video_enabled;
-    call.is_my_presentation_paused = group_call->is_my_presentation_paused;
-    call.syncing_participants = group_call->syncing_participants;
-    call.need_syncing_participants = group_call->need_syncing_participants;
-    call.loaded_all_participants = group_call->loaded_all_participants;
-    call.audio_source = group_call->audio_source;
-    call.as_dialog_id = group_call->as_dialog_id;
-    *group_call = std::move(call);
-
-    need_update = true;
-    if (need_group_call_participants(group_call)) {
-      if (process_pending_group_call_participant_updates(input_group_call_id)) {
-        need_update = false;
-      }
-      try_load_group_call_administrators(input_group_call_id, group_call->dialog_id);
-    } else {
-      group_call->version = -1;
-    }
-  } else {
-    if (!group_call->is_active) {
-      // never update ended calls
-    } else if (!call.is_active) {
-      // always update to an ended call, dropping also is_joined, is_speaking and other local flags
-      fail_promises(group_call->after_join, Status::Error(400, "Group call ended"));
-      *group_call = std::move(call);
-      need_update = true;
-    } else {
-      if (call.is_rtmp_stream != group_call->is_rtmp_stream) {
-        group_call->is_rtmp_stream = call.is_rtmp_stream;
-        need_update = true;
-      }
-      if (call.has_hidden_listeners != group_call->has_hidden_listeners) {
-        group_call->has_hidden_listeners = call.has_hidden_listeners;
-        need_update = true;
-      }
-      if ((call.unmuted_video_count != group_call->unmuted_video_count ||
-           call.unmuted_video_limit != group_call->unmuted_video_limit) &&
-          call.can_enable_video_version >= group_call->can_enable_video_version) {
-        auto old_can_enable_video = get_group_call_can_enable_video(group_call);
-        group_call->unmuted_video_count = call.unmuted_video_count;
-        group_call->unmuted_video_limit = call.unmuted_video_limit;
-        group_call->can_enable_video_version = call.can_enable_video_version;
-        if (old_can_enable_video != get_group_call_can_enable_video(group_call)) {
-          need_update = true;
-        }
-      }
-      if (call.start_subscribed != group_call->start_subscribed &&
-          call.start_subscribed_version >= group_call->start_subscribed_version) {
-        auto old_start_subscribed = get_group_call_start_subscribed(group_call);
-        group_call->start_subscribed = call.start_subscribed;
-        group_call->start_subscribed_version = call.start_subscribed_version;
-        if (old_start_subscribed != get_group_call_start_subscribed(group_call)) {
-          need_update = true;
-        }
-      }
-      auto mute_flags_changed =
-          call.mute_new_participants != group_call->mute_new_participants ||
-          call.allowed_toggle_mute_new_participants != group_call->allowed_toggle_mute_new_participants;
-      if (mute_flags_changed && call.mute_version >= group_call->mute_version) {
-        auto old_mute_new_participants = get_group_call_mute_new_participants(group_call);
-        need_update |= (call.allowed_toggle_mute_new_participants && call.can_be_managed) !=
-                       (group_call->allowed_toggle_mute_new_participants && group_call->can_be_managed);
-        group_call->mute_new_participants = call.mute_new_participants;
-        group_call->allowed_toggle_mute_new_participants = call.allowed_toggle_mute_new_participants;
-        group_call->mute_version = call.mute_version;
-        if (old_mute_new_participants != get_group_call_mute_new_participants(group_call)) {
-          need_update = true;
-        }
-      }
-      if (call.title != group_call->title && call.title_version >= group_call->title_version) {
-        string old_group_call_title = get_group_call_title(group_call);
-        group_call->title = std::move(call.title);
-        group_call->title_version = call.title_version;
-        if (old_group_call_title != get_group_call_title(group_call)) {
-          need_update = true;
-        }
-      }
-      if (call.can_be_managed != group_call->can_be_managed) {
-        group_call->can_be_managed = call.can_be_managed;
-        need_update = true;
-      }
-      if (call.stream_dc_id != group_call->stream_dc_id &&
-          call.stream_dc_id_version >= group_call->stream_dc_id_version) {
-        group_call->stream_dc_id = call.stream_dc_id;
-        group_call->stream_dc_id_version = call.stream_dc_id_version;
-      }
-      // flag call.joined_date_asc must not change
-      if ((call.record_start_date != group_call->record_start_date ||
-           call.is_video_recorded != group_call->is_video_recorded) &&
-          call.record_start_date_version >= group_call->record_start_date_version) {
-        int32 old_record_start_date = get_group_call_record_start_date(group_call);
-        bool old_is_video_recorded = get_group_call_is_video_recorded(group_call);
-        group_call->record_start_date = call.record_start_date;
-        group_call->is_video_recorded = call.is_video_recorded;
-        group_call->record_start_date_version = call.record_start_date_version;
-        if (old_record_start_date != get_group_call_record_start_date(group_call) ||
-            old_is_video_recorded != get_group_call_is_video_recorded(group_call)) {
-          need_update = true;
-        }
-      }
-      if (call.scheduled_start_date != group_call->scheduled_start_date &&
-          call.scheduled_start_date_version >= group_call->scheduled_start_date_version) {
-        LOG_IF(ERROR, group_call->scheduled_start_date == 0) << input_group_call_id << " became scheduled";
-        group_call->scheduled_start_date = call.scheduled_start_date;
-        group_call->scheduled_start_date_version = call.scheduled_start_date_version;
-        need_update = true;
-      }
-      if (call.version > group_call->version) {
-        if (group_call->version != -1) {
-          // if we know group call version, then update participants only by corresponding updates
-          on_receive_group_call_version(input_group_call_id, call.version);
-        } else {
-          need_update |= set_group_call_participant_count(group_call, call.participant_count, "update_group_call");
-          if (need_group_call_participants(group_call) && !join_params.empty() && group_call->version == -1) {
-            LOG(INFO) << "Init " << call.group_call_id << " version to " << call.version;
-            group_call->version = call.version;
-            if (process_pending_group_call_participant_updates(input_group_call_id)) {
-              need_update = false;
-            }
-          }
-        }
-      } else if (call.version == group_call->version) {
-        set_group_call_participant_count(group_call, call.participant_count, "update_group_call fix");
-        need_update = true;
-      }
-    }
-  }
-  if (!group_call->is_active && group_call_recent_speakers_.erase(group_call->group_call_id) != 0) {
-    need_update = true;
-  }
-  if (!join_params.empty()) {
-    need_update |= on_join_group_call_response(input_group_call_id, std::move(join_params));
-  }
-  update_group_call_dialog(group_call, "update_group_call", false);  // must be after join response is processed
-  need_update |= try_clear_group_call_participants(input_group_call_id);
-  if (need_update) {
-    send_update_group_call(group_call, "update_group_call");
-  }
-  return input_group_call_id;
-}
-
-void GroupCallManager::on_receive_group_call_version(InputGroupCallId input_group_call_id, int32 version,
-                                                     bool immediate_sync) {
-  auto *group_call = get_group_call(input_group_call_id);
-  if (!need_group_call_participants(group_call)) {
-    return;
-  }
-  CHECK(group_call != nullptr && group_call->is_inited);
-  if (group_call->version == -1) {
-    return;
-  }
-  if (version <= group_call->version) {
-    return;
-  }
-  if (group_call->syncing_participants) {
-    return;
-  }
-
-  // found a gap
-  LOG(INFO) << "Receive version " << version << " for group call " << input_group_call_id;
-  auto *group_call_participants = add_group_call_participants(input_group_call_id, "on_receive_group_call_version");
-  group_call_participants->pending_version_updates_[version];  // reserve place for updates
-  if (immediate_sync) {
-    sync_participants_timeout_.set_timeout_in(group_call->group_call_id.get(), 0.0);
-  } else {
-    sync_participants_timeout_.add_timeout_in(group_call->group_call_id.get(), 1.0);
-  }
-}
-
-void GroupCallManager::on_participant_speaking_in_group_call(InputGroupCallId input_group_call_id,
-                                                             const GroupCallParticipant &participant) {
-  auto active_date = td::max(participant.active_date, participant.joined_date - 60);
-  if (active_date < G()->unix_time() - RECENT_SPEAKER_TIMEOUT) {
-    return;
-  }
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr) {
-    return;
-  }
-
-  on_user_speaking_in_group_call(group_call->group_call_id, participant.dialog_id, participant.server_is_muted_by_admin,
-                                 active_date, !participant.is_min);
-}
-
-void GroupCallManager::on_user_speaking_in_group_call(GroupCallId group_call_id, DialogId dialog_id,
-                                                      bool is_muted_by_admin, int32 date, bool is_recursive) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (date < G()->unix_time() - RECENT_SPEAKER_TIMEOUT) {
-    return;
-  }
-
-  auto input_group_call_id = get_input_group_call_id(group_call_id).move_as_ok();
-
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call != nullptr && group_call->is_inited && !group_call->is_active) {
-    return;
-  }
-  if (group_call->has_hidden_listeners && is_muted_by_admin) {
-    return;
-  }
-
-  if (!td_->dialog_manager_->have_dialog_info_force(dialog_id, "on_user_speaking_in_group_call") ||
-      (!is_recursive && need_group_call_participants(group_call) &&
-       get_group_call_participant(input_group_call_id, dialog_id, "on_user_speaking_in_group_call") == nullptr)) {
-    if (is_recursive) {
-      LOG(ERROR) << "Failed to find speaking " << dialog_id << " from " << input_group_call_id;
-    } else {
-      auto query_promise = PromiseCreator::lambda(
-          [actor_id = actor_id(this), group_call_id, dialog_id, is_muted_by_admin, date](Result<Unit> &&result) {
-            if (!G()->close_flag() && result.is_ok()) {
-              send_closure(actor_id, &GroupCallManager::on_user_speaking_in_group_call, group_call_id, dialog_id,
-                           is_muted_by_admin, date, true);
-            }
-          });
-      vector<tl_object_ptr<telegram_api::InputPeer>> input_peers;
-      input_peers.push_back(DialogManager::get_input_peer_force(dialog_id));
-      td_->create_handler<GetGroupCallParticipantQuery>(std::move(query_promise))
-          ->send(input_group_call_id, std::move(input_peers), {});
-    }
-    return;
-  }
-
-  LOG(INFO) << "Add " << dialog_id << " as recent speaker at " << date << " in " << input_group_call_id;
-  auto &recent_speakers = group_call_recent_speakers_[group_call_id];
-  if (recent_speakers == nullptr) {
-    recent_speakers = make_unique<GroupCallRecentSpeakers>();
-  }
-
-  for (size_t i = 0; i < recent_speakers->users.size(); i++) {
-    if (recent_speakers->users[i].first == dialog_id) {
-      if (recent_speakers->users[i].second >= date) {
-        LOG(INFO) << "Ignore outdated speaking information";
-        return;
-      }
-      recent_speakers->users[i].second = date;
-      while (i > 0 && recent_speakers->users[i - 1].second < date) {
-        std::swap(recent_speakers->users[i - 1], recent_speakers->users[i]);
-        i--;
-      }
-      on_group_call_recent_speakers_updated(group_call, recent_speakers.get());
-      return;
-    }
-  }
-
-  for (size_t i = 0; i <= recent_speakers->users.size(); i++) {
-    if (i == recent_speakers->users.size() || recent_speakers->users[i].second <= date) {
-      if (dialog_id.get_type() != DialogType::User) {
-        td_->dialog_manager_->force_create_dialog(dialog_id, "on_user_speaking_in_group_call", true);
-      }
-      recent_speakers->users.insert(recent_speakers->users.begin() + i, {dialog_id, date});
-      break;
-    }
-  }
-  static constexpr size_t MAX_RECENT_SPEAKERS = 3;
-  if (recent_speakers->users.size() > MAX_RECENT_SPEAKERS) {
-    recent_speakers->users.pop_back();
-  }
-
-  on_group_call_recent_speakers_updated(group_call, recent_speakers.get());
-}
-
-void GroupCallManager::remove_recent_group_call_speaker(InputGroupCallId input_group_call_id, DialogId dialog_id) {
-  auto *group_call = get_group_call(input_group_call_id);
-  if (group_call == nullptr) {
-    return;
-  }
-
-  auto recent_speakers_it = group_call_recent_speakers_.find(group_call->group_call_id);
-  if (recent_speakers_it == group_call_recent_speakers_.end()) {
-    return;
-  }
-  auto &recent_speakers = recent_speakers_it->second;
-  CHECK(recent_speakers != nullptr);
-  for (size_t i = 0; i < recent_speakers->users.size(); i++) {
-    if (recent_speakers->users[i].first == dialog_id) {
-      LOG(INFO) << "Remove " << dialog_id << " from recent speakers in " << input_group_call_id << " from "
-                << group_call->dialog_id;
-      recent_speakers->users.erase(recent_speakers->users.begin() + i);
-      on_group_call_recent_speakers_updated(group_call, recent_speakers.get());
-      return;
-    }
-  }
-}
-
-void GroupCallManager::on_group_call_recent_speakers_updated(const GroupCall *group_call,
-                                                             GroupCallRecentSpeakers *recent_speakers) {
-  if (group_call == nullptr || !group_call->is_inited || recent_speakers->is_changed) {
-    if (group_call != nullptr) {
-      LOG(INFO) << "Don't need to send update of recent speakers in " << group_call->group_call_id << " from "
-                << group_call->dialog_id;
-    }
-    return;
-  }
-
-  recent_speakers->is_changed = true;
-
-  LOG(INFO) << "Schedule update of recent speakers in " << group_call->group_call_id << " from "
-            << group_call->dialog_id;
-  const double MAX_RECENT_SPEAKER_UPDATE_DELAY = 0.5;
-  recent_speaker_update_timeout_.set_timeout_in(group_call->group_call_id.get(), MAX_RECENT_SPEAKER_UPDATE_DELAY);
-}
-
-DialogId GroupCallManager::set_group_call_participant_is_speaking_by_source(InputGroupCallId input_group_call_id,
-                                                                            int32 audio_source, bool is_speaking,
-                                                                            int32 date) {
-  CHECK(audio_source != 0);
-  auto participants_it = group_call_participants_.find(input_group_call_id);
-  if (participants_it == group_call_participants_.end()) {
-    return DialogId();
-  }
-
-  for (auto &participant : participants_it->second->participants) {
-    if (participant.audio_source == audio_source || participant.presentation_audio_source == audio_source) {
-      if (is_speaking && participant.get_is_muted_by_admin()) {
-        // don't allow to show as speaking muted by admin participants
-        return DialogId();
-      }
-      if (participant.is_speaking != is_speaking) {
-        participant.is_speaking = is_speaking;
-        if (is_speaking) {
-          participant.local_active_date = max(participant.local_active_date, date);
-        }
-        bool can_self_unmute = get_group_call_can_self_unmute(input_group_call_id);
-        auto old_order = participant.order;
-        participant.order = get_real_participant_order(can_self_unmute, participant, participants_it->second.get());
-        if (participant.order.is_valid() || old_order.is_valid()) {
-          send_update_group_call_participant(input_group_call_id, participant,
-                                             "set_group_call_participant_is_speaking_by_source");
-        }
-      }
-
-      return participant.dialog_id;
-    }
-  }
-  return DialogId();
-}
-
-bool GroupCallManager::set_group_call_participant_count(GroupCall *group_call, int32 count, const char *source,
-                                                        bool force_update) {
-  CHECK(group_call != nullptr);
-  CHECK(group_call->is_inited);
-  if (group_call->participant_count == count) {
-    return false;
-  }
-
-  LOG(DEBUG) << "Set " << group_call->group_call_id << " participant count to " << count << " from " << source;
-  auto input_group_call_id = get_input_group_call_id(group_call->group_call_id).ok();
-  if (count < 0) {
-    LOG(ERROR) << "Participant count became negative in " << group_call->group_call_id << " in "
-               << group_call->dialog_id << " from " << source;
-    count = 0;
-    reload_group_call(input_group_call_id, Auto());
-  }
-
-  bool result = false;
-  if (need_group_call_participants(group_call)) {
-    auto known_participant_count = static_cast<int32>(
-        add_group_call_participants(input_group_call_id, "set_group_call_participant_count")->participants.size());
-    if (count < known_participant_count) {
-      if (group_call->is_joined) {
-        LOG(ERROR) << "Participant count became " << count << " from " << source << ", which is less than known "
-                   << known_participant_count << " number of participants in " << input_group_call_id << " from "
-                   << group_call->dialog_id;
-      }
-      count = known_participant_count;
-    } else if (group_call->loaded_all_participants && !group_call->has_hidden_listeners &&
-               count > known_participant_count) {
-      if (group_call->joined_date_asc) {
-        group_call->loaded_all_participants = false;
-        result = true;
-      } else {
-        count = known_participant_count;
-      }
-    }
-  }
-
-  if (group_call->participant_count == count) {
-    return result;
-  }
-
-  group_call->participant_count = count;
-  update_group_call_dialog(group_call, source, force_update);
-  return true;
-}
-
-bool GroupCallManager::set_group_call_unmuted_video_count(GroupCall *group_call, int32 count, const char *source) {
-  CHECK(group_call != nullptr);
-  CHECK(group_call->is_inited);
-
-  auto participants_it = group_call_participants_.find(get_input_group_call_id(group_call->group_call_id).ok());
-  if (participants_it != group_call_participants_.end()) {
-    auto group_call_participants = participants_it->second.get();
-    CHECK(group_call_participants != nullptr);
-    CHECK(group_call_participants->local_unmuted_video_count >= 0);
-    CHECK(static_cast<size_t>(group_call_participants->local_unmuted_video_count) <=
-          group_call_participants->participants.size());
-    if (group_call->loaded_all_participants || !group_call_participants->min_order.has_video()) {
-      if (group_call_participants->local_unmuted_video_count != count &&
-          group_call->unmuted_video_count != group_call_participants->local_unmuted_video_count) {
-        LOG(INFO) << "Use local count " << group_call_participants->local_unmuted_video_count
-                  << " of unmuted videos instead of " << count;
-      }
-      count = group_call_participants->local_unmuted_video_count;
-    }
-  }
-
-  if (count < 0) {
-    LOG(ERROR) << "Video participant count became negative in " << group_call->group_call_id << " in "
-               << group_call->dialog_id << " from " << source;
-    count = 0;
-    auto input_group_call_id = get_input_group_call_id(group_call->group_call_id).ok();
-    reload_group_call(input_group_call_id, Auto());
-  }
-
-  if (group_call->unmuted_video_count == count) {
-    return false;
-  }
-
-  LOG(DEBUG) << "Set " << group_call->group_call_id << " video participant count to " << count << " from " << source;
-
-  auto old_can_enable_video = get_group_call_can_enable_video(group_call);
-  group_call->unmuted_video_count = count;
-  return old_can_enable_video != get_group_call_can_enable_video(group_call);
-}
-
-void GroupCallManager::update_group_call_dialog(const GroupCall *group_call, const char *source, bool force) {
-  CHECK(group_call != nullptr);
-  if (!group_call->dialog_id.is_valid()) {
-    return;
-  }
-
-  td_->messages_manager_->on_update_dialog_group_call(group_call->dialog_id, group_call->is_active,
-                                                      group_call->participant_count == 0, source, force);
-}
-
-vector<td_api::object_ptr<td_api::groupCallRecentSpeaker>> GroupCallManager::get_recent_speakers(
-    const GroupCall *group_call, bool for_update) {
-  CHECK(group_call != nullptr && group_call->is_inited);
-
-  auto recent_speakers_it = group_call_recent_speakers_.find(group_call->group_call_id);
-  if (recent_speakers_it == group_call_recent_speakers_.end()) {
-    return Auto();
-  }
-
-  auto *recent_speakers = recent_speakers_it->second.get();
-  CHECK(recent_speakers != nullptr);
-  LOG(INFO) << "Found " << recent_speakers->users.size() << " recent speakers in " << group_call->group_call_id
-            << " from " << group_call->dialog_id;
-  auto now = G()->unix_time();
-  while (!recent_speakers->users.empty() && recent_speakers->users.back().second < now - RECENT_SPEAKER_TIMEOUT) {
-    recent_speakers->users.pop_back();
-  }
-
-  vector<std::pair<DialogId, bool>> recent_speaker_users;
-  for (auto &recent_speaker : recent_speakers->users) {
-    recent_speaker_users.emplace_back(recent_speaker.first, recent_speaker.second > now - 8);
-  }
-
-  if (recent_speakers->is_changed) {
-    recent_speakers->is_changed = false;
-    recent_speaker_update_timeout_.cancel_timeout(group_call->group_call_id.get());
-  }
-  if (!recent_speaker_users.empty()) {
-    auto next_timeout = recent_speakers->users.back().second + RECENT_SPEAKER_TIMEOUT - now + 1;
-    if (recent_speaker_users[0].second) {  // if someone is speaking, recheck in 1 second
-      next_timeout = 1;
-    }
-    recent_speaker_update_timeout_.add_timeout_in(group_call->group_call_id.get(), next_timeout);
-  }
-
-  auto get_result = [recent_speaker_users, td = td_] {
-    return transform(recent_speaker_users, [td](const std::pair<DialogId, bool> &recent_speaker_user) {
-      return td_api::make_object<td_api::groupCallRecentSpeaker>(
-          get_message_sender_object(td, recent_speaker_user.first, "get_recent_speakers"), recent_speaker_user.second);
-    });
-  };
-  if (recent_speakers->last_sent_users != recent_speaker_users) {
-    recent_speakers->last_sent_users = std::move(recent_speaker_users);
-
-    if (!for_update) {
-      // the change must be received through update first
-      LOG(INFO) << "Send update about " << group_call->group_call_id << " from get_recent_speakers";
-      send_closure(G()->td(), &Td::send_update, get_update_group_call_object(group_call, get_result()));
-    }
-  }
-
-  return get_result();
-}
-
-tl_object_ptr<td_api::groupCall> GroupCallManager::get_group_call_object(
-    const GroupCall *group_call, vector<td_api::object_ptr<td_api::groupCallRecentSpeaker>> recent_speakers) {
-  CHECK(group_call != nullptr);
-  CHECK(group_call->is_inited);
-
-  int32 scheduled_start_date = group_call->scheduled_start_date;
-  bool is_active = scheduled_start_date == 0 ? group_call->is_active : false;
-  bool is_joined = get_group_call_is_joined(group_call);
-  bool start_subscribed = get_group_call_start_subscribed(group_call);
-  bool is_my_video_enabled = get_group_call_is_my_video_enabled(group_call);
-  bool is_my_video_paused = is_my_video_enabled && get_group_call_is_my_video_paused(group_call);
-  bool mute_new_participants = get_group_call_mute_new_participants(group_call);
-  bool can_toggle_mute_new_participants =
-      group_call->is_active && group_call->can_be_managed && group_call->allowed_toggle_mute_new_participants;
-  bool can_enable_video = get_group_call_can_enable_video(group_call);
-  int32 record_start_date = get_group_call_record_start_date(group_call);
-  int32 record_duration = record_start_date == 0 ? 0 : max(G()->unix_time() - record_start_date + 1, 1);
-  bool is_video_recorded = get_group_call_is_video_recorded(group_call);
-  return td_api::make_object<td_api::groupCall>(
-      group_call->group_call_id.get(), group_call->call_id.get(), get_group_call_title(group_call),
-      scheduled_start_date, start_subscribed, is_active, group_call->is_rtmp_stream, is_joined, group_call->need_rejoin,
-      group_call->can_be_managed, group_call->participant_count, group_call->has_hidden_listeners,
-      group_call->loaded_all_participants, std::move(recent_speakers), is_my_video_enabled, is_my_video_paused,
-      can_enable_video, mute_new_participants, can_toggle_mute_new_participants, record_duration, is_video_recorded,
-      group_call->duration);
-}
-
-tl_object_ptr<td_api::updateGroupCall> GroupCallManager::get_update_group_call_object(
-    const GroupCall *group_call, vector<td_api::object_ptr<td_api::groupCallRecentSpeaker>> recent_speakers) {
-  return td_api::make_object<td_api::updateGroupCall>(get_group_call_object(group_call, std::move(recent_speakers)));
-}
-
-tl_object_ptr<td_api::updateGroupCallParticipant> GroupCallManager::get_update_group_call_participant_object(
-    GroupCallId group_call_id, const GroupCallParticipant &participant) {
-  return td_api::make_object<td_api::updateGroupCallParticipant>(group_call_id.get(),
-                                                                 participant.get_group_call_participant_object(td_));
-}
-
-void GroupCallManager::send_update_group_call(const GroupCall *group_call, const char *source) {
-  LOG(INFO) << "Send update about " << group_call->group_call_id << " from " << source;
-  send_closure(G()->td(), &Td::send_update,
-               get_update_group_call_object(group_call, get_recent_speakers(group_call, true)));
-}
-
-void GroupCallManager::send_update_group_call_participant(GroupCallId group_call_id,
-                                                          const GroupCallParticipant &participant, const char *source) {
-  LOG(INFO) << "Send update about " << participant << " in " << group_call_id << " from " << source;
-  send_closure(G()->td(), &Td::send_update, get_update_group_call_participant_object(group_call_id, participant));
-}
-
-void GroupCallManager::send_update_group_call_participant(InputGroupCallId input_group_call_id,
-                                                          const GroupCallParticipant &participant, const char *source) {
-  auto group_call = get_group_call(input_group_call_id);
-  CHECK(group_call != nullptr && group_call->is_inited);
-  send_update_group_call_participant(group_call->group_call_id, participant, source);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallManager.h b/third-party/td/td/td/telegram/GroupCallManager.h
deleted file mode 100644
index efce0b9aab..0000000000
--- a/third-party/td/td/td/telegram/GroupCallManager.h
+++ /dev/null
@@ -1,437 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/GroupCallId.h"
-#include "td/telegram/GroupCallParticipant.h"
-#include "td/telegram/GroupCallParticipantOrder.h"
-#include "td/telegram/InputGroupCallId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class GroupCallManager final : public Actor {
- public:
-  GroupCallManager(Td *td, ActorShared<> parent);
-  GroupCallManager(const GroupCallManager &) = delete;
-  GroupCallManager &operator=(const GroupCallManager &) = delete;
-  GroupCallManager(GroupCallManager &&) = delete;
-  GroupCallManager &operator=(GroupCallManager &&) = delete;
-  ~GroupCallManager() final;
-
-  Result<InputGroupCallId> get_input_group_call_id(GroupCallId group_call_id);
-
-  bool is_group_call_being_joined(InputGroupCallId input_group_call_id) const;
-
-  bool is_group_call_joined(InputGroupCallId input_group_call_id) const;
-
-  GroupCallId get_group_call_id(InputGroupCallId input_group_call_id, DialogId dialog_id);
-
-  void get_group_call_join_as(DialogId dialog_id, Promise<td_api::object_ptr<td_api::messageSenders>> &&promise);
-
-  void set_group_call_default_join_as(DialogId dialog_id, DialogId as_dialog_id, Promise<Unit> &&promise);
-
-  void create_voice_chat(DialogId dialog_id, string title, int32 start_date, bool is_rtmp_stream,
-                         Promise<GroupCallId> &&promise);
-
-  void get_voice_chat_rtmp_stream_url(DialogId dialog_id, bool revoke,
-                                      Promise<td_api::object_ptr<td_api::rtmpUrl>> &&promise);
-
-  void get_group_call(GroupCallId group_call_id, Promise<td_api::object_ptr<td_api::groupCall>> &&promise);
-
-  void on_update_group_call_rights(InputGroupCallId input_group_call_id);
-
-  void reload_group_call(InputGroupCallId input_group_call_id,
-                         Promise<td_api::object_ptr<td_api::groupCall>> &&promise);
-
-  void get_group_call_streams(GroupCallId group_call_id,
-                              Promise<td_api::object_ptr<td_api::groupCallStreams>> &&promise);
-
-  void get_group_call_stream_segment(GroupCallId group_call_id, int64 time_offset, int32 scale, int32 channel_id,
-                                     td_api::object_ptr<td_api::GroupCallVideoQuality> quality,
-                                     Promise<string> &&promise);
-
-  void start_scheduled_group_call(GroupCallId group_call_id, Promise<Unit> &&promise);
-
-  void join_group_call(GroupCallId group_call_id, DialogId as_dialog_id, int32 audio_source, string &&payload,
-                       bool is_muted, bool is_my_video_enabled, const string &invite_hash, int64 key_fingerprint,
-                       Promise<string> &&promise);
-
-  void start_group_call_screen_sharing(GroupCallId group_call_id, int32 audio_source, string &&payload,
-                                       Promise<string> &&promise);
-
-  void end_group_call_screen_sharing(GroupCallId group_call_id, Promise<Unit> &&promise);
-
-  void set_group_call_title(GroupCallId group_call_id, string title, Promise<Unit> &&promise);
-
-  void toggle_group_call_is_my_video_paused(GroupCallId group_call_id, bool is_my_video_paused,
-                                            Promise<Unit> &&promise);
-
-  void toggle_group_call_is_my_video_enabled(GroupCallId group_call_id, bool is_my_video_enabled,
-                                             Promise<Unit> &&promise);
-
-  void toggle_group_call_is_my_presentation_paused(GroupCallId group_call_id, bool is_my_presentation_paused,
-                                                   Promise<Unit> &&promise);
-
-  void toggle_group_call_start_subscribed(GroupCallId group_call_id, bool start_subscribed, Promise<Unit> &&promise);
-
-  void toggle_group_call_mute_new_participants(GroupCallId group_call_id, bool mute_new_participants,
-                                               Promise<Unit> &&promise);
-
-  void revoke_group_call_invite_link(GroupCallId group_call_id, Promise<Unit> &&promise);
-
-  void invite_group_call_participants(GroupCallId group_call_id, vector<UserId> &&user_ids, Promise<Unit> &&promise);
-
-  void get_group_call_invite_link(GroupCallId group_call_id, bool can_self_unmute, Promise<string> &&promise);
-
-  void toggle_group_call_recording(GroupCallId group_call_id, bool is_enabled, string title, bool record_video,
-                                   bool use_portrait_orientation, Promise<Unit> &&promise);
-
-  void set_group_call_participant_is_speaking(GroupCallId group_call_id, int32 audio_source, bool is_speaking,
-                                              Promise<Unit> &&promise, int32 date = 0);
-
-  void toggle_group_call_participant_is_muted(GroupCallId group_call_id, DialogId dialog_id, bool is_muted,
-                                              Promise<Unit> &&promise);
-
-  void set_group_call_participant_volume_level(GroupCallId group_call_id, DialogId dialog_id, int32 volume_level,
-                                               Promise<Unit> &&promise);
-
-  void toggle_group_call_participant_is_hand_raised(GroupCallId group_call_id, DialogId dialog_id, bool is_hand_raised,
-                                                    Promise<Unit> &&promise);
-
-  void load_group_call_participants(GroupCallId group_call_id, int32 limit, Promise<Unit> &&promise);
-
-  void leave_group_call(GroupCallId group_call_id, Promise<Unit> &&promise);
-
-  void discard_group_call(GroupCallId group_call_id, Promise<Unit> &&promise);
-
-  void on_update_dialog_about(DialogId dialog_id, const string &about, bool from_server);
-
-  void on_update_group_call_connection(string &&connection_params);
-
-  void on_update_group_call(tl_object_ptr<telegram_api::GroupCall> group_call_ptr, DialogId dialog_id);
-
-  void on_user_speaking_in_group_call(GroupCallId group_call_id, DialogId dialog_id, bool is_muted_by_admin, int32 date,
-                                      bool is_recursive = false);
-
-  void on_get_group_call_participants(InputGroupCallId input_group_call_id,
-                                      tl_object_ptr<telegram_api::phone_groupParticipants> &&participants, bool is_load,
-                                      const string &offset);
-
-  void on_update_group_call_participants(InputGroupCallId input_group_call_id,
-                                         vector<tl_object_ptr<telegram_api::groupCallParticipant>> &&participants,
-                                         int32 version, bool is_recursive = false);
-
-  void process_join_group_call_response(InputGroupCallId input_group_call_id, uint64 generation,
-                                        tl_object_ptr<telegram_api::Updates> &&updates, Promise<Unit> &&promise);
-
-  void process_join_group_call_presentation_response(InputGroupCallId input_group_call_id, uint64 generation,
-                                                     tl_object_ptr<telegram_api::Updates> &&updates, Status status);
-
- private:
-  struct GroupCall;
-  struct GroupCallParticipants;
-  struct GroupCallRecentSpeakers;
-  struct PendingJoinRequest;
-
-  static constexpr int32 RECENT_SPEAKER_TIMEOUT = 60 * 60;
-  static constexpr int32 UPDATE_GROUP_CALL_PARTICIPANT_ORDER_TIMEOUT = 10;
-  static constexpr int32 CHECK_GROUP_CALL_IS_JOINED_TIMEOUT = 10;
-  static constexpr size_t MAX_TITLE_LENGTH = 64;  // server side limit for group call/call record title length
-
-  void tear_down() final;
-
-  static void on_update_group_call_participant_order_timeout_callback(void *group_call_manager_ptr,
-                                                                      int64 group_call_id_int);
-
-  void on_update_group_call_participant_order_timeout(GroupCallId group_call_id);
-
-  static void on_check_group_call_is_joined_timeout_callback(void *group_call_manager_ptr, int64 group_call_id_int);
-
-  void on_check_group_call_is_joined_timeout(GroupCallId group_call_id);
-
-  static void on_pending_send_speaking_action_timeout_callback(void *group_call_manager_ptr, int64 group_call_id_int);
-
-  void on_send_speaking_action_timeout(GroupCallId group_call_id);
-
-  static void on_recent_speaker_update_timeout_callback(void *group_call_manager_ptr, int64 group_call_id_int);
-
-  void on_recent_speaker_update_timeout(GroupCallId group_call_id);
-
-  static void on_sync_participants_timeout_callback(void *group_call_manager_ptr, int64 group_call_id_int);
-
-  void on_sync_participants_timeout(GroupCallId group_call_id);
-
-  GroupCallId get_next_group_call_id(InputGroupCallId input_group_call_id);
-
-  GroupCall *add_group_call(InputGroupCallId input_group_call_id, DialogId dialog_id);
-
-  const GroupCall *get_group_call(InputGroupCallId input_group_call_id) const;
-  GroupCall *get_group_call(InputGroupCallId input_group_call_id);
-
-  Status can_join_group_calls(DialogId dialog_id) const;
-
-  Status can_manage_group_calls(DialogId dialog_id) const;
-
-  bool can_manage_group_call(InputGroupCallId input_group_call_id) const;
-
-  bool get_group_call_can_self_unmute(InputGroupCallId input_group_call_id) const;
-
-  bool get_group_call_joined_date_asc(InputGroupCallId input_group_call_id) const;
-
-  void on_voice_chat_created(DialogId dialog_id, InputGroupCallId input_group_call_id, Promise<GroupCallId> &&promise);
-
-  void finish_get_group_call(InputGroupCallId input_group_call_id,
-                             Result<tl_object_ptr<telegram_api::phone_groupCall>> &&result);
-
-  void finish_get_group_call_streams(InputGroupCallId input_group_call_id, int32 audio_source,
-                                     Result<td_api::object_ptr<td_api::groupCallStreams>> &&result,
-                                     Promise<td_api::object_ptr<td_api::groupCallStreams>> &&promise);
-
-  void finish_get_group_call_stream_segment(InputGroupCallId input_group_call_id, int32 audio_source,
-                                            Result<string> &&result, Promise<string> &&promise);
-
-  void finish_check_group_call_is_joined(InputGroupCallId input_group_call_id, int32 audio_source,
-                                         Result<Unit> &&result);
-
-  static const string &get_group_call_title(const GroupCall *group_call);
-
-  static bool get_group_call_is_joined(const GroupCall *group_call);
-
-  static bool get_group_call_start_subscribed(const GroupCall *group_call);
-
-  static bool get_group_call_is_my_video_paused(const GroupCall *group_call);
-
-  static bool get_group_call_is_my_video_enabled(const GroupCall *group_call);
-
-  static bool get_group_call_is_my_presentation_paused(const GroupCall *group_call);
-
-  static bool get_group_call_mute_new_participants(const GroupCall *group_call);
-
-  static int32 get_group_call_record_start_date(const GroupCall *group_call);
-
-  static bool get_group_call_is_video_recorded(const GroupCall *group_call);
-
-  static bool get_group_call_has_recording(const GroupCall *group_call);
-
-  static bool get_group_call_can_enable_video(const GroupCall *group_call);
-
-  static bool is_group_call_active(const GroupCall *group_call);
-
-  bool need_group_call_participants(InputGroupCallId input_group_call_id) const;
-
-  static bool need_group_call_participants(const GroupCall *group_call);
-
-  bool process_pending_group_call_participant_updates(InputGroupCallId input_group_call_id);
-
-  bool is_my_audio_source(InputGroupCallId input_group_call_id, const GroupCall *group_call, int32 audio_source) const;
-
-  void sync_group_call_participants(InputGroupCallId input_group_call_id);
-
-  void on_sync_group_call_participants(InputGroupCallId input_group_call_id,
-                                       Result<tl_object_ptr<telegram_api::phone_groupCall>> &&result);
-
-  static GroupCallParticipantOrder get_real_participant_order(bool can_self_unmute,
-                                                              const GroupCallParticipant &participant,
-                                                              const GroupCallParticipants *participants);
-
-  void process_my_group_call_participant(InputGroupCallId input_group_call_id, GroupCallParticipant &&participant);
-
-  void process_group_call_participants(InputGroupCallId group_call_id,
-                                       vector<tl_object_ptr<telegram_api::groupCallParticipant>> &&participants,
-                                       int32 version, const string &offset, bool is_load, bool is_sync);
-
-  static bool update_group_call_participant_can_be_muted(bool can_manage, const GroupCallParticipants *participants,
-                                                         GroupCallParticipant &participant);
-
-  void update_group_call_participants_can_be_muted(InputGroupCallId input_group_call_id, bool can_manage,
-                                                   GroupCallParticipants *participants);
-
-  void update_group_call_participants_order(InputGroupCallId input_group_call_id, bool can_self_unmute,
-                                            GroupCallParticipants *participants, const char *source);
-
-  // returns participant_count_diff and video_participant_count_diff
-  std::pair<int32, int32> process_group_call_participant(InputGroupCallId group_call_id,
-                                                         GroupCallParticipant &&participant);
-
-  void on_add_group_call_participant(InputGroupCallId input_group_call_id, DialogId participant_dialog_id);
-
-  void on_remove_group_call_participant(InputGroupCallId input_group_call_id, DialogId participant_dialog_id);
-
-  void try_load_group_call_administrators(InputGroupCallId input_group_call_id, DialogId dialog_id);
-
-  void finish_load_group_call_administrators(InputGroupCallId input_group_call_id, Result<DialogParticipants> &&result);
-
-  int32 cancel_join_group_call_request(InputGroupCallId input_group_call_id, GroupCall *group_call);
-
-  int32 cancel_join_group_call_presentation_request(InputGroupCallId input_group_call_id);
-
-  bool on_join_group_call_response(InputGroupCallId input_group_call_id, string json_response);
-
-  void finish_join_group_call(InputGroupCallId input_group_call_id, uint64 generation, Status error);
-
-  void process_group_call_after_join_requests(InputGroupCallId input_group_call_id, const char *source);
-
-  GroupCallParticipants *add_group_call_participants(InputGroupCallId input_group_call_id, const char *source);
-
-  GroupCallParticipant *get_group_call_participant(InputGroupCallId input_group_call_id, DialogId dialog_id,
-                                                   const char *source);
-
-  GroupCallParticipant *get_group_call_participant(GroupCallParticipants *group_call_participants,
-                                                   DialogId dialog_id) const;
-
-  void send_edit_group_call_title_query(InputGroupCallId input_group_call_id, const string &title);
-
-  void on_edit_group_call_title(InputGroupCallId input_group_call_id, const string &title, Result<Unit> &&result);
-
-  void send_toggle_group_call_start_subscription_query(InputGroupCallId input_group_call_id, bool start_subscribed);
-
-  void on_toggle_group_call_start_subscription(InputGroupCallId input_group_call_id, bool start_subscribed,
-                                               Result<Unit> &&result);
-
-  void send_toggle_group_call_is_my_video_paused_query(InputGroupCallId input_group_call_id, DialogId as_dialog_id,
-                                                       bool is_my_video_paused);
-
-  void on_toggle_group_call_is_my_video_paused(InputGroupCallId input_group_call_id, bool is_my_video_paused,
-                                               Result<Unit> &&result);
-
-  void send_toggle_group_call_is_my_video_enabled_query(InputGroupCallId input_group_call_id, DialogId as_dialog_id,
-                                                        bool is_my_video_enabled);
-
-  void on_toggle_group_call_is_my_video_enabled(InputGroupCallId input_group_call_id, bool is_my_video_enabled,
-                                                Result<Unit> &&result);
-
-  void send_toggle_group_call_is_my_presentation_paused_query(InputGroupCallId input_group_call_id,
-                                                              DialogId as_dialog_id, bool is_my_presentation_paused);
-
-  void on_toggle_group_call_is_my_presentation_paused(InputGroupCallId input_group_call_id,
-                                                      bool is_my_presentation_paused, Result<Unit> &&result);
-
-  void send_toggle_group_call_mute_new_participants_query(InputGroupCallId input_group_call_id,
-                                                          bool mute_new_participants);
-
-  void on_toggle_group_call_mute_new_participants(InputGroupCallId input_group_call_id, bool mute_new_participants,
-                                                  Result<Unit> &&result);
-
-  void send_toggle_group_call_recording_query(InputGroupCallId input_group_call_id, bool is_enabled,
-                                              const string &title, bool record_video, bool use_portrait_orientation,
-                                              uint64 generation);
-
-  void on_toggle_group_call_recording(InputGroupCallId input_group_call_id, uint64 generation, Result<Unit> &&result);
-
-  void on_toggle_group_call_participant_is_muted(InputGroupCallId input_group_call_id, DialogId dialog_id,
-                                                 uint64 generation, Promise<Unit> &&promise);
-
-  void on_set_group_call_participant_volume_level(InputGroupCallId input_group_call_id, DialogId dialog_id,
-                                                  uint64 generation, Promise<Unit> &&promise);
-
-  void on_toggle_group_call_participant_is_hand_raised(InputGroupCallId input_group_call_id, DialogId dialog_id,
-                                                       uint64 generation, Promise<Unit> &&promise);
-
-  void on_group_call_left(InputGroupCallId input_group_call_id, int32 audio_source, bool need_rejoin);
-
-  void on_group_call_left_impl(GroupCall *group_call, bool need_rejoin, const char *source);
-
-  InputGroupCallId update_group_call(const tl_object_ptr<telegram_api::GroupCall> &group_call_ptr, DialogId dialog_id);
-
-  void on_receive_group_call_version(InputGroupCallId input_group_call_id, int32 version, bool immediate_sync = false);
-
-  void on_participant_speaking_in_group_call(InputGroupCallId input_group_call_id,
-                                             const GroupCallParticipant &participant);
-
-  void remove_recent_group_call_speaker(InputGroupCallId input_group_call_id, DialogId dialog_id);
-
-  void on_group_call_recent_speakers_updated(const GroupCall *group_call, GroupCallRecentSpeakers *recent_speakers);
-
-  DialogId set_group_call_participant_is_speaking_by_source(InputGroupCallId input_group_call_id, int32 audio_source,
-                                                            bool is_speaking, int32 date);
-
-  bool try_clear_group_call_participants(InputGroupCallId input_group_call_id);
-
-  bool set_group_call_participant_count(GroupCall *group_call, int32 count, const char *source,
-                                        bool force_update = false);
-
-  bool set_group_call_unmuted_video_count(GroupCall *group_call, int32 count, const char *source);
-
-  void update_group_call_dialog(const GroupCall *group_call, const char *source, bool force);
-
-  vector<td_api::object_ptr<td_api::groupCallRecentSpeaker>> get_recent_speakers(const GroupCall *group_call,
-                                                                                 bool for_update);
-
-  static tl_object_ptr<td_api::updateGroupCall> get_update_group_call_object(
-      const GroupCall *group_call, vector<td_api::object_ptr<td_api::groupCallRecentSpeaker>> recent_speakers);
-
-  static tl_object_ptr<td_api::groupCall> get_group_call_object(
-      const GroupCall *group_call, vector<td_api::object_ptr<td_api::groupCallRecentSpeaker>> recent_speakers);
-
-  tl_object_ptr<td_api::updateGroupCallParticipant> get_update_group_call_participant_object(
-      GroupCallId group_call_id, const GroupCallParticipant &participant);
-
-  void send_update_group_call(const GroupCall *group_call, const char *source);
-
-  void send_update_group_call_participant(GroupCallId group_call_id, const GroupCallParticipant &participant,
-                                          const char *source);
-
-  void send_update_group_call_participant(InputGroupCallId input_group_call_id, const GroupCallParticipant &participant,
-                                          const char *source);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  GroupCallId max_group_call_id_;
-
-  vector<InputGroupCallId> input_group_call_ids_;
-
-  FlatHashMap<InputGroupCallId, unique_ptr<GroupCall>, InputGroupCallIdHash> group_calls_;
-
-  string pending_group_call_join_params_;
-
-  FlatHashMap<InputGroupCallId, unique_ptr<GroupCallParticipants>, InputGroupCallIdHash> group_call_participants_;
-  FlatHashMap<DialogId, vector<InputGroupCallId>, DialogIdHash> participant_id_to_group_call_id_;
-
-  FlatHashMap<GroupCallId, unique_ptr<GroupCallRecentSpeakers>, GroupCallIdHash> group_call_recent_speakers_;
-
-  FlatHashMap<InputGroupCallId, vector<Promise<td_api::object_ptr<td_api::groupCall>>>, InputGroupCallIdHash>
-      load_group_call_queries_;
-
-  FlatHashMap<InputGroupCallId, unique_ptr<PendingJoinRequest>, InputGroupCallIdHash> pending_join_requests_;
-  FlatHashMap<InputGroupCallId, unique_ptr<PendingJoinRequest>, InputGroupCallIdHash>
-      pending_join_presentation_requests_;
-  uint64 join_group_request_generation_ = 0;
-
-  uint64 toggle_recording_generation_ = 0;
-
-  uint64 toggle_is_muted_generation_ = 0;
-
-  uint64 set_volume_level_generation_ = 0;
-
-  uint64 toggle_is_hand_raised_generation_ = 0;
-
-  MultiTimeout update_group_call_participant_order_timeout_{"UpdateGroupCallParticipantOrderTimeout"};
-  MultiTimeout check_group_call_is_joined_timeout_{"CheckGroupCallIsJoinedTimeout"};
-  MultiTimeout pending_send_speaking_action_timeout_{"PendingSendSpeakingActionTimeout"};
-  MultiTimeout recent_speaker_update_timeout_{"RecentSpeakerUpdateTimeout"};
-  MultiTimeout sync_participants_timeout_{"SyncParticipantsTimeout"};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallParticipant.cpp b/third-party/td/td/td/telegram/GroupCallParticipant.cpp
deleted file mode 100644
index 684111029a..0000000000
--- a/third-party/td/td/td/telegram/GroupCallParticipant.cpp
+++ /dev/null
@@ -1,322 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/GroupCallParticipant.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/logging.h"
-
-#include <limits>
-
-namespace td {
-
-GroupCallParticipant::GroupCallParticipant(const tl_object_ptr<telegram_api::groupCallParticipant> &participant,
-                                           int32 call_version) {
-  CHECK(participant != nullptr);
-  dialog_id = DialogId(participant->peer_);
-  about = participant->about_;
-  audio_source = participant->source_;
-  server_is_muted_by_themselves = participant->can_self_unmute_;
-  server_is_muted_by_admin = participant->muted_ && !participant->can_self_unmute_;
-  server_is_muted_locally = participant->muted_by_you_;
-  is_self = participant->self_;
-  if ((participant->flags_ & telegram_api::groupCallParticipant::VOLUME_MASK) != 0) {
-    volume_level = participant->volume_;
-    if (volume_level < MIN_VOLUME_LEVEL || volume_level > MAX_VOLUME_LEVEL) {
-      LOG(ERROR) << "Receive " << to_string(participant);
-      volume_level = 10000;
-    }
-    is_volume_level_local = !participant->volume_by_admin_;
-  }
-  if (!participant->left_) {
-    joined_date = participant->date_;
-    if ((participant->flags_ & telegram_api::groupCallParticipant::ACTIVE_DATE_MASK) != 0) {
-      active_date = participant->active_date_;
-    }
-    if (joined_date <= 0 || active_date < 0) {
-      LOG(ERROR) << "Receive invalid active_date/joined_date in " << to_string(participant);
-      joined_date = 1;
-      active_date = 0;
-    }
-    if ((participant->flags_ & telegram_api::groupCallParticipant::RAISE_HAND_RATING_MASK) != 0) {
-      raise_hand_rating = participant->raise_hand_rating_;
-      if (raise_hand_rating < 0) {
-        LOG(ERROR) << "Receive invalid raise_hand_rating in " << to_string(participant);
-        raise_hand_rating = 0;
-      }
-    }
-  }
-  is_just_joined = participant->just_joined_;
-  is_min = participant->min_;
-  version = call_version;
-
-  if (participant->video_ != nullptr) {
-    video_payload = GroupCallVideoPayload(participant->video_.get());
-  }
-  if (participant->presentation_ != nullptr) {
-    if (participant->presentation_->flags_ & telegram_api::groupCallParticipantVideo::AUDIO_SOURCE_MASK) {
-      presentation_audio_source = participant->presentation_->audio_source_;
-    }
-    presentation_payload = GroupCallVideoPayload(participant->presentation_.get());
-  }
-
-  if (is_just_joined && get_has_video()) {
-    video_diff++;
-  }
-}
-
-bool GroupCallParticipant::is_versioned_update(const tl_object_ptr<telegram_api::groupCallParticipant> &participant) {
-  // updates about new and left participants must be applied as versioned, even they don't increase version
-  return participant->just_joined_ || participant->left_ || participant->versioned_;
-}
-
-GroupCallParticipantOrder GroupCallParticipant::get_real_order(bool can_self_unmute, bool joined_date_asc) const {
-  auto sort_active_date = td::max(active_date, local_active_date);
-  if (sort_active_date == 0 && !get_is_muted_by_admin()) {  // if the participant isn't muted by admin
-    if (get_is_muted_by_themselves()) {
-      sort_active_date = joined_date;
-    } else {
-      sort_active_date = G()->unix_time();
-    }
-  }
-  if (sort_active_date < G()->unix_time() - 300) {
-    sort_active_date = 0;
-  }
-  auto sort_raise_hand_rating = can_self_unmute ? raise_hand_rating : 0;
-  auto sort_joined_date = joined_date_asc ? std::numeric_limits<int32>::max() - joined_date : joined_date;
-  bool has_video = !video_payload.is_empty() || !presentation_payload.is_empty();
-  return GroupCallParticipantOrder(has_video, sort_active_date, sort_raise_hand_rating, sort_joined_date);
-}
-
-GroupCallParticipantOrder GroupCallParticipant::get_server_order(bool can_self_unmute, bool joined_date_asc) const {
-  auto sort_active_date = active_date;
-  if (sort_active_date == 0 && !server_is_muted_by_admin) {  // if the participant isn't muted by admin
-    if (server_is_muted_by_themselves) {
-      sort_active_date = joined_date;
-    } else {
-      sort_active_date = G()->unix_time();
-    }
-  }
-  auto sort_raise_hand_rating = can_self_unmute ? raise_hand_rating : 0;
-  auto sort_joined_date = joined_date_asc ? std::numeric_limits<int32>::max() - joined_date : joined_date;
-  bool has_video = !video_payload.is_empty() || !presentation_payload.is_empty();
-  return GroupCallParticipantOrder(has_video, sort_active_date, sort_raise_hand_rating, sort_joined_date);
-}
-
-bool GroupCallParticipant::get_is_muted_by_themselves() const {
-  return have_pending_is_muted ? pending_is_muted_by_themselves : server_is_muted_by_themselves;
-}
-
-bool GroupCallParticipant::get_is_muted_by_admin() const {
-  return have_pending_is_muted ? pending_is_muted_by_admin : server_is_muted_by_admin;
-}
-
-bool GroupCallParticipant::get_is_muted_locally() const {
-  return have_pending_is_muted ? pending_is_muted_locally : server_is_muted_locally;
-}
-
-bool GroupCallParticipant::get_is_muted_for_all_users() const {
-  return get_is_muted_by_admin() || get_is_muted_by_themselves();
-}
-
-int32 GroupCallParticipant::get_volume_level() const {
-  return pending_volume_level != 0 ? pending_volume_level : volume_level;
-}
-
-bool GroupCallParticipant::get_is_hand_raised() const {
-  return have_pending_is_hand_raised ? pending_is_hand_raised : raise_hand_rating != 0;
-}
-
-int32 GroupCallParticipant::get_has_video() const {
-  return video_payload.is_empty() && presentation_payload.is_empty() ? 0 : 1;
-}
-
-void GroupCallParticipant::update_from(const GroupCallParticipant &old_participant) {
-  CHECK(!old_participant.is_min);
-  if (joined_date < old_participant.joined_date) {
-    LOG(ERROR) << "Join date of " << old_participant.dialog_id << " decreased from " << old_participant.joined_date
-               << " to " << joined_date;
-    joined_date = old_participant.joined_date;
-  }
-  if (active_date < old_participant.active_date) {
-    active_date = old_participant.active_date;
-  }
-  local_active_date = old_participant.local_active_date;
-  is_speaking = old_participant.is_speaking;
-  if (is_min) {
-    server_is_muted_locally = old_participant.server_is_muted_locally;
-
-    if (old_participant.is_volume_level_local && !is_volume_level_local) {
-      is_volume_level_local = true;
-      volume_level = old_participant.volume_level;
-    }
-
-    if (audio_source == old_participant.audio_source) {
-      is_self = old_participant.is_self;
-    }
-  }
-  is_min = false;
-
-  pending_volume_level = old_participant.pending_volume_level;
-  pending_volume_level_generation = old_participant.pending_volume_level_generation;
-
-  have_pending_is_muted = old_participant.have_pending_is_muted;
-  pending_is_muted_by_themselves = old_participant.pending_is_muted_by_themselves;
-  pending_is_muted_by_admin = old_participant.pending_is_muted_by_admin;
-  pending_is_muted_locally = old_participant.pending_is_muted_locally;
-  pending_is_muted_generation = old_participant.pending_is_muted_generation;
-
-  have_pending_is_hand_raised = old_participant.have_pending_is_hand_raised;
-  pending_is_hand_raised = old_participant.pending_is_hand_raised;
-  pending_is_hand_raised_generation = old_participant.pending_is_hand_raised_generation;
-}
-
-bool GroupCallParticipant::update_can_be_muted(bool can_manage, bool is_admin) {
-  bool is_muted_by_admin = get_is_muted_by_admin();
-  bool is_muted_by_themselves = get_is_muted_by_themselves();
-  bool is_muted_locally = get_is_muted_locally();
-
-  CHECK(!is_muted_by_admin || !is_muted_by_themselves);
-
-  bool new_can_be_muted_for_all_users = false;
-  bool new_can_be_unmuted_for_all_users = false;
-  bool new_can_be_muted_only_for_self = !can_manage && !is_muted_locally;
-  bool new_can_be_unmuted_only_for_self = !can_manage && is_muted_locally;
-  if (is_self) {
-    // current user can be muted if !is_muted_by_themselves && !is_muted_by_admin; after that is_muted_by_themselves
-    // current user can be unmuted if is_muted_by_themselves; after that !is_muted
-    new_can_be_muted_for_all_users = !is_muted_by_themselves && !is_muted_by_admin;
-    new_can_be_unmuted_for_all_users = is_muted_by_themselves;
-    new_can_be_muted_only_for_self = false;
-    new_can_be_unmuted_only_for_self = false;
-  } else if (is_admin) {
-    // admin user can be muted if can_manage && !is_muted_by_themselves; after that is_muted_by_themselves
-    // admin user can't be unmuted
-    new_can_be_muted_for_all_users = can_manage && !is_muted_by_themselves;
-  } else {
-    // other users can be muted if can_manage && !is_muted_by_admin; after that is_muted_by_admin
-    // other users can be unmuted if can_manage && is_muted_by_admin; after that is_muted_by_themselves
-    new_can_be_muted_for_all_users = can_manage && !is_muted_by_admin;
-    new_can_be_unmuted_for_all_users = can_manage && is_muted_by_admin;
-  }
-  CHECK(static_cast<int>(new_can_be_muted_for_all_users) + static_cast<int>(new_can_be_unmuted_for_all_users) +
-            static_cast<int>(new_can_be_muted_only_for_self) + static_cast<int>(new_can_be_unmuted_only_for_self) <=
-        1);
-  if (new_can_be_muted_for_all_users != can_be_muted_for_all_users ||
-      new_can_be_unmuted_for_all_users != can_be_unmuted_for_all_users ||
-      new_can_be_muted_only_for_self != can_be_muted_only_for_self ||
-      new_can_be_unmuted_only_for_self != can_be_unmuted_only_for_self) {
-    can_be_muted_for_all_users = new_can_be_muted_for_all_users;
-    can_be_unmuted_for_all_users = new_can_be_unmuted_for_all_users;
-    can_be_muted_only_for_self = new_can_be_muted_only_for_self;
-    can_be_unmuted_only_for_self = new_can_be_unmuted_only_for_self;
-    return true;
-  }
-  return false;
-}
-
-bool GroupCallParticipant::set_pending_is_muted(bool is_muted, bool can_manage, bool is_admin) {
-  update_can_be_muted(can_manage, is_admin);
-  if (is_muted) {
-    if (!can_be_muted_for_all_users && !can_be_muted_only_for_self) {
-      return false;
-    }
-    CHECK(!can_be_muted_for_all_users || !can_be_muted_only_for_self);
-  } else {
-    if (!can_be_unmuted_for_all_users && !can_be_unmuted_only_for_self) {
-      return false;
-    }
-    CHECK(!can_be_unmuted_for_all_users || !can_be_unmuted_only_for_self);
-  }
-
-  if (is_self) {
-    pending_is_muted_by_themselves = is_muted;
-    pending_is_muted_by_admin = false;
-    pending_is_muted_locally = false;
-  } else {
-    pending_is_muted_by_themselves = get_is_muted_by_themselves();
-    pending_is_muted_by_admin = get_is_muted_by_admin();
-    pending_is_muted_locally = get_is_muted_locally();
-    if (is_muted) {
-      if (can_be_muted_only_for_self) {
-        // local mute
-        pending_is_muted_locally = true;
-      } else {
-        // admin mute
-        CHECK(can_be_muted_for_all_users);
-        CHECK(can_manage);
-        if (is_admin) {
-          CHECK(!pending_is_muted_by_themselves);
-          pending_is_muted_by_admin = false;
-          pending_is_muted_by_themselves = true;
-        } else {
-          CHECK(!pending_is_muted_by_admin);
-          pending_is_muted_by_admin = true;
-          pending_is_muted_by_themselves = false;
-        }
-      }
-    } else {
-      if (can_be_unmuted_only_for_self) {
-        // local unmute
-        pending_is_muted_locally = false;
-      } else {
-        // admin unmute
-        CHECK(can_be_unmuted_for_all_users);
-        CHECK(can_manage);
-        CHECK(!is_admin);
-        pending_is_muted_by_admin = false;
-        pending_is_muted_by_themselves = true;
-      }
-    }
-  }
-
-  have_pending_is_muted = true;
-  update_can_be_muted(can_manage, is_admin);
-  return true;
-}
-
-td_api::object_ptr<td_api::groupCallParticipant> GroupCallParticipant::get_group_call_participant_object(Td *td) const {
-  if (!is_valid()) {
-    return nullptr;
-  }
-
-  return td_api::make_object<td_api::groupCallParticipant>(
-      get_message_sender_object(td, dialog_id, "get_group_call_participant_object"), audio_source,
-      presentation_audio_source, video_payload.get_group_call_participant_video_info_object(),
-      presentation_payload.get_group_call_participant_video_info_object(), about, is_self, is_speaking,
-      get_is_hand_raised(), can_be_muted_for_all_users, can_be_unmuted_for_all_users, can_be_muted_only_for_self,
-      can_be_unmuted_only_for_self, get_is_muted_for_all_users(), get_is_muted_locally(), get_is_muted_by_themselves(),
-      get_volume_level(), order.get_group_call_participant_order_object());
-}
-
-bool operator==(const GroupCallParticipant &lhs, const GroupCallParticipant &rhs) {
-  return lhs.dialog_id == rhs.dialog_id && lhs.audio_source == rhs.audio_source &&
-         lhs.presentation_audio_source == rhs.presentation_audio_source && lhs.video_payload == rhs.video_payload &&
-         lhs.presentation_payload == rhs.presentation_payload && lhs.about == rhs.about && lhs.is_self == rhs.is_self &&
-         lhs.is_speaking == rhs.is_speaking && lhs.get_is_hand_raised() == rhs.get_is_hand_raised() &&
-         lhs.can_be_muted_for_all_users == rhs.can_be_muted_for_all_users &&
-         lhs.can_be_unmuted_for_all_users == rhs.can_be_unmuted_for_all_users &&
-         lhs.can_be_muted_only_for_self == rhs.can_be_muted_only_for_self &&
-         lhs.can_be_unmuted_only_for_self == rhs.can_be_unmuted_only_for_self &&
-         lhs.get_is_muted_for_all_users() == rhs.get_is_muted_for_all_users() &&
-         lhs.get_is_muted_locally() == rhs.get_is_muted_locally() &&
-         lhs.get_is_muted_by_themselves() == rhs.get_is_muted_by_themselves() &&
-         lhs.get_volume_level() == rhs.get_volume_level() && lhs.order == rhs.order;
-}
-
-bool operator!=(const GroupCallParticipant &lhs, const GroupCallParticipant &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const GroupCallParticipant &group_call_participant) {
-  return string_builder << "GroupCallParticipant[" << group_call_participant.dialog_id << " with source "
-                        << group_call_participant.audio_source << " and order " << group_call_participant.order << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallParticipant.h b/third-party/td/td/td/telegram/GroupCallParticipant.h
deleted file mode 100644
index 8e1e7aa11c..0000000000
--- a/third-party/td/td/td/telegram/GroupCallParticipant.h
+++ /dev/null
@@ -1,112 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/GroupCallParticipantOrder.h"
-#include "td/telegram/GroupCallVideoPayload.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-struct GroupCallParticipant {
-  DialogId dialog_id;
-  string about;
-  GroupCallVideoPayload video_payload;
-  GroupCallVideoPayload presentation_payload;
-  int32 audio_source = 0;
-  int32 presentation_audio_source = 0;
-  int64 raise_hand_rating = 0;
-  int32 joined_date = 0;
-  int32 active_date = 0;
-  int32 volume_level = 10000;
-  bool is_volume_level_local = false;
-  bool server_is_muted_by_themselves = false;
-  bool server_is_muted_by_admin = false;
-  bool server_is_muted_locally = false;
-  bool is_self = false;
-
-  bool can_be_muted_for_all_users = false;
-  bool can_be_unmuted_for_all_users = false;
-  bool can_be_muted_only_for_self = false;
-  bool can_be_unmuted_only_for_self = false;
-
-  bool is_min = false;
-  bool is_fake = false;
-  bool is_just_joined = false;
-  bool is_speaking = false;
-  int32 video_diff = 0;
-  int32 local_active_date = 0;
-  GroupCallParticipantOrder order;
-  int32 version = 0;
-
-  int32 pending_volume_level = 0;
-  uint64 pending_volume_level_generation = 0;
-
-  bool have_pending_is_muted = false;
-  bool pending_is_muted_by_themselves = false;
-  bool pending_is_muted_by_admin = false;
-  bool pending_is_muted_locally = false;
-  uint64 pending_is_muted_generation = 0;
-
-  bool have_pending_is_hand_raised = false;
-  bool pending_is_hand_raised = false;
-  uint64 pending_is_hand_raised_generation = 0;
-
-  static constexpr int32 MIN_VOLUME_LEVEL = 1;
-  static constexpr int32 MAX_VOLUME_LEVEL = 20000;
-
-  GroupCallParticipant() = default;
-
-  GroupCallParticipant(const tl_object_ptr<telegram_api::groupCallParticipant> &participant, int32 call_version);
-
-  static bool is_versioned_update(const tl_object_ptr<telegram_api::groupCallParticipant> &participant);
-
-  void update_from(const GroupCallParticipant &old_participant);
-
-  bool update_can_be_muted(bool can_manage, bool is_admin);
-
-  bool set_pending_is_muted(bool is_muted, bool can_manage, bool is_admin);
-
-  GroupCallParticipantOrder get_real_order(bool can_self_unmute, bool joined_date_asc) const;
-
-  GroupCallParticipantOrder get_server_order(bool can_self_unmute, bool joined_date_asc) const;
-
-  bool is_valid() const {
-    return dialog_id.is_valid();
-  }
-
-  bool get_is_muted_by_themselves() const;
-
-  bool get_is_muted_by_admin() const;
-
-  bool get_is_muted_locally() const;
-
-  bool get_is_muted_for_all_users() const;
-
-  int32 get_volume_level() const;
-
-  bool get_is_hand_raised() const;
-
-  int32 get_has_video() const;
-
-  td_api::object_ptr<td_api::groupCallParticipant> get_group_call_participant_object(Td *td) const;
-};
-
-bool operator==(const GroupCallParticipant &lhs, const GroupCallParticipant &rhs);
-
-bool operator!=(const GroupCallParticipant &lhs, const GroupCallParticipant &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const GroupCallParticipant &group_call_participant);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallParticipantOrder.cpp b/third-party/td/td/td/telegram/GroupCallParticipantOrder.cpp
deleted file mode 100644
index 4e13a5cf67..0000000000
--- a/third-party/td/td/td/telegram/GroupCallParticipantOrder.cpp
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/GroupCallParticipantOrder.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <limits>
-#include <tuple>
-
-namespace td {
-
-GroupCallParticipantOrder GroupCallParticipantOrder::min() {
-  return GroupCallParticipantOrder(false, 0, 0, 1);
-}
-
-GroupCallParticipantOrder GroupCallParticipantOrder::max() {
-  return GroupCallParticipantOrder(true, std::numeric_limits<int32>::max(), std::numeric_limits<int64>::max(),
-                                   std::numeric_limits<int32>::max());
-}
-
-bool GroupCallParticipantOrder::is_valid() const {
-  return *this != GroupCallParticipantOrder();
-}
-
-string GroupCallParticipantOrder::get_group_call_participant_order_object() const {
-  if (!is_valid()) {
-    return string();
-  }
-  return PSTRING() << (has_video_ ? '1' : '0') << lpad0(to_string(active_date_), 10)
-                   << lpad0(to_string(raise_hand_rating_), 19) << lpad0(to_string(joined_date_), 10);
-}
-
-bool operator==(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs) {
-  return lhs.has_video_ == rhs.has_video_ && lhs.active_date_ == rhs.active_date_ &&
-         lhs.joined_date_ == rhs.joined_date_ && lhs.raise_hand_rating_ == rhs.raise_hand_rating_;
-}
-
-bool operator!=(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs) {
-  return !(lhs == rhs);
-}
-
-bool operator<(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs) {
-  auto lhs_has_video_ = static_cast<int32>(lhs.has_video_);
-  auto rhs_has_video_ = static_cast<int32>(rhs.has_video_);
-  return std::tie(lhs_has_video_, lhs.active_date_, lhs.raise_hand_rating_, lhs.joined_date_) <
-         std::tie(rhs_has_video_, rhs.active_date_, rhs.raise_hand_rating_, rhs.joined_date_);
-}
-
-bool operator<=(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs) {
-  return !(rhs < lhs);
-}
-
-bool operator>(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs) {
-  return rhs < lhs;
-}
-
-bool operator>=(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs) {
-  return !(lhs < rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder,
-                          const GroupCallParticipantOrder &group_call_participant_order) {
-  return string_builder << group_call_participant_order.has_video_ << '/' << group_call_participant_order.active_date_
-                        << '/' << group_call_participant_order.raise_hand_rating_ << '/'
-                        << group_call_participant_order.joined_date_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallParticipantOrder.h b/third-party/td/td/td/telegram/GroupCallParticipantOrder.h
deleted file mode 100644
index 08e9d217f5..0000000000
--- a/third-party/td/td/td/telegram/GroupCallParticipantOrder.h
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class GroupCallParticipantOrder {
-  bool has_video_ = false;
-  int32 active_date_ = 0;
-  int32 joined_date_ = 0;
-  int64 raise_hand_rating_ = 0;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder,
-                                   const GroupCallParticipantOrder &group_call_participant_order);
-
-  friend bool operator==(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs);
-
-  friend bool operator<(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs);
-
- public:
-  GroupCallParticipantOrder() = default;
-
-  GroupCallParticipantOrder(bool has_video, int32 active_date, int64 raise_hand_rating, int32 joined_date)
-      : has_video_(has_video)
-      , active_date_(active_date)
-      , joined_date_(joined_date)
-      , raise_hand_rating_(raise_hand_rating) {
-  }
-
-  static GroupCallParticipantOrder min();
-
-  static GroupCallParticipantOrder max();
-
-  bool is_valid() const;
-
-  bool has_video() const {
-    return has_video_;
-  }
-
-  string get_group_call_participant_order_object() const;
-};
-
-bool operator==(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs);
-
-bool operator!=(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs);
-
-bool operator<(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs);
-
-bool operator<=(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs);
-
-bool operator>(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs);
-
-bool operator>=(const GroupCallParticipantOrder &lhs, const GroupCallParticipantOrder &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const GroupCallParticipantOrder &group_call_participant_order);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallVideoPayload.cpp b/third-party/td/td/td/telegram/GroupCallVideoPayload.cpp
deleted file mode 100644
index 5ea238d1db..0000000000
--- a/third-party/td/td/td/telegram/GroupCallVideoPayload.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/GroupCallVideoPayload.h"
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-
-namespace td {
-
-bool operator==(const GroupCallVideoPayload &lhs, const GroupCallVideoPayload &rhs) {
-  if (lhs.source_groups_.size() != rhs.source_groups_.size() || lhs.endpoint_ != rhs.endpoint_ ||
-      lhs.is_paused_ != rhs.is_paused_) {
-    return false;
-  }
-  for (size_t i = 0; i < lhs.source_groups_.size(); i++) {
-    if (lhs.source_groups_[i].semantics_ != rhs.source_groups_[i].semantics_ ||
-        lhs.source_groups_[i].source_ids_ != rhs.source_groups_[i].source_ids_) {
-      return false;
-    }
-  }
-  return true;
-}
-
-bool GroupCallVideoPayload::is_empty() const {
-  return endpoint_.empty() || source_groups_.empty();
-}
-
-td_api::object_ptr<td_api::groupCallParticipantVideoInfo>
-GroupCallVideoPayload::get_group_call_participant_video_info_object() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-
-  auto get_group_call_video_source_group_object = [](const GroupCallVideoSourceGroup &group) {
-    return td_api::make_object<td_api::groupCallVideoSourceGroup>(group.semantics_, vector<int32>(group.source_ids_));
-  };
-  return td_api::make_object<td_api::groupCallParticipantVideoInfo>(
-      transform(source_groups_, get_group_call_video_source_group_object), endpoint_, is_paused_);
-}
-
-GroupCallVideoPayload::GroupCallVideoPayload(const telegram_api::groupCallParticipantVideo *video) {
-  if (video == nullptr) {
-    return;
-  }
-
-  endpoint_ = video->endpoint_;
-  source_groups_ = transform(video->source_groups_, [](auto &&source_group) {
-    GroupCallVideoSourceGroup result;
-    result.semantics_ = source_group->semantics_;
-    result.source_ids_ = source_group->sources_;
-    return result;
-  });
-  if (!is_empty()) {
-    is_paused_ = video->paused_;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/GroupCallVideoPayload.h b/third-party/td/td/td/telegram/GroupCallVideoPayload.h
deleted file mode 100644
index f00bdf37b8..0000000000
--- a/third-party/td/td/td/telegram/GroupCallVideoPayload.h
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class GroupCallVideoPayload {
-  struct GroupCallVideoSourceGroup {
-    string semantics_;
-    vector<int32> source_ids_;
-  };
-
-  vector<GroupCallVideoSourceGroup> source_groups_;
-  string endpoint_;
-  bool is_paused_ = false;
-
-  friend bool operator==(const GroupCallVideoPayload &lhs, const GroupCallVideoPayload &rhs);
-
- public:
-  GroupCallVideoPayload() = default;
-
-  explicit GroupCallVideoPayload(const telegram_api::groupCallParticipantVideo *video);
-
-  bool is_empty() const;
-
-  td_api::object_ptr<td_api::groupCallParticipantVideoInfo> get_group_call_participant_video_info_object() const;
-};
-
-bool operator==(const GroupCallVideoPayload &lhs, const GroupCallVideoPayload &rhs);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/HashtagHints.cpp b/third-party/td/td/td/telegram/HashtagHints.cpp
deleted file mode 100644
index 0853acd613..0000000000
--- a/third-party/td/td/td/telegram/HashtagHints.cpp
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/HashtagHints.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-HashtagHints::HashtagHints(string mode, char first_character, ActorShared<> parent)
-    : mode_(std::move(mode)), first_character_(first_character), parent_(std::move(parent)) {
-}
-
-void HashtagHints::start_up() {
-  if (G()->use_sqlite_pmc()) {  // TODO hashtag hints should not depend on use_sqlite_pmc
-    G()->td_db()->get_sqlite_pmc()->get(get_key(),
-                                        PromiseCreator::lambda([actor_id = actor_id(this)](Result<string> res) {
-                                          send_closure(actor_id, &HashtagHints::from_db, std::move(res), false);
-                                        }));
-  }
-}
-
-void HashtagHints::hashtag_used(const string &hashtag) {
-  if (!sync_with_db_) {
-    return;
-  }
-  hashtag_used_impl(hashtag);
-  G()->td_db()->get_sqlite_pmc()->set(get_key(), serialize(keys_to_strings(hints_.search_empty(101).second)),
-                                      Promise<Unit>());
-}
-
-void HashtagHints::remove_hashtag(string hashtag, Promise<Unit> promise) {
-  if (!sync_with_db_) {
-    return promise.set_value(Unit());
-  }
-  if (hashtag[0] == first_character_) {
-    hashtag = hashtag.substr(1);
-  }
-  auto key = Hash<string>()(hashtag);
-  if (hints_.has_key(key)) {
-    hints_.remove(key);
-    G()->td_db()->get_sqlite_pmc()->set(get_key(), serialize(keys_to_strings(hints_.search_empty(101).second)),
-                                        Promise<Unit>());
-    promise.set_value(Unit());  // set promise explicitly, because sqlite_pmc waits for too long before setting promise
-  } else {
-    promise.set_value(Unit());
-  }
-}
-
-void HashtagHints::clear(Promise<Unit> promise) {
-  if (!sync_with_db_) {
-    return promise.set_value(Unit());
-  }
-  hints_ = {};
-  G()->td_db()->get_sqlite_pmc()->set(get_key(), serialize(vector<string>()), Promise<Unit>());
-  promise.set_value(Unit());
-}
-
-void HashtagHints::query(const string &prefix, int32 limit, Promise<vector<string>> promise) {
-  if (!sync_with_db_) {
-    promise.set_value(vector<string>());
-    return;
-  }
-
-  auto query = Slice(prefix).substr(prefix[0] == first_character_ ? 1 : 0);
-  auto result = query.empty() ? hints_.search_empty(limit) : hints_.search(query, limit);
-  promise.set_value(keys_to_strings(result.second));
-}
-
-string HashtagHints::get_key() const {
-  return "hashtag_hints#" + mode_;
-}
-
-void HashtagHints::hashtag_used_impl(const string &hashtag) {
-  if (!check_utf8(hashtag)) {
-    LOG(ERROR) << "Trying to add invalid UTF-8 hashtag \"" << hashtag << '"';
-    return;
-  }
-
-  auto key = Hash<string>()(hashtag);
-  hints_.add(key, hashtag);
-  hints_.set_rating(key, -++counter_);
-}
-
-void HashtagHints::from_db(Result<string> data, bool dummy) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  sync_with_db_ = true;
-  if (data.is_error() || data.ok().empty()) {
-    return;
-  }
-  vector<string> hashtags;
-  auto status = unserialize(hashtags, data.ok());
-  if (status.is_error()) {
-    LOG(ERROR) << "Failed to unserialize hashtag hints: " << status;
-    return;
-  }
-
-  for (auto it = hashtags.rbegin(); it != hashtags.rend(); ++it) {
-    hashtag_used_impl(*it);
-  }
-}
-
-vector<string> HashtagHints::keys_to_strings(const vector<int64> &keys) {
-  vector<string> result;
-  result.reserve(keys.size());
-  for (auto &it : keys) {
-    result.push_back(hints_.key_to_string(it));
-  }
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/HashtagHints.h b/third-party/td/td/td/telegram/HashtagHints.h
deleted file mode 100644
index 2f604269e2..0000000000
--- a/third-party/td/td/td/telegram/HashtagHints.h
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Hints.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class HashtagHints final : public Actor {
- public:
-  HashtagHints(string mode, char first_character, ActorShared<> parent);
-
-  void hashtag_used(const string &hashtag);
-
-  void remove_hashtag(string hashtag, Promise<Unit> promise);
-
-  void clear(Promise<Unit> promise);
-
-  void query(const string &prefix, int32 limit, Promise<vector<string>> promise);
-
- private:
-  string mode_;
-  Hints hints_;
-  char first_character_ = '#';
-  bool sync_with_db_ = false;
-  int64 counter_ = 0;
-
-  ActorShared<> parent_;
-
-  string get_key() const;
-
-  void start_up() final;
-
-  void hashtag_used_impl(const string &hashtag);
-  void from_db(Result<string> data, bool dummy);
-  vector<string> keys_to_strings(const vector<int64> &keys);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InlineMessageManager.cpp b/third-party/td/td/td/telegram/InlineMessageManager.cpp
deleted file mode 100644
index 37851bc787..0000000000
--- a/third-party/td/td/td/telegram/InlineMessageManager.cpp
+++ /dev/null
@@ -1,384 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/InlineMessageManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/GameManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/InputMessageText.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageSelfDestructType.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_parsers.h"
-
-namespace td {
-
-static int32 get_inline_message_dc_id(
-    const telegram_api::object_ptr<telegram_api::InputBotInlineMessageID> &inline_message_id) {
-  CHECK(inline_message_id != nullptr);
-  switch (inline_message_id->get_id()) {
-    case telegram_api::inputBotInlineMessageID::ID:
-      return static_cast<const telegram_api::inputBotInlineMessageID *>(inline_message_id.get())->dc_id_;
-    case telegram_api::inputBotInlineMessageID64::ID:
-      return static_cast<const telegram_api::inputBotInlineMessageID64 *>(inline_message_id.get())->dc_id_;
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-static telegram_api::object_ptr<telegram_api::InputBotInlineMessageID> parse_input_bot_inline_message_id(
-    const string &inline_message_id) {
-  auto r_binary = base64url_decode(inline_message_id);
-  if (r_binary.is_error()) {
-    return nullptr;
-  }
-  BufferSlice buffer_slice(r_binary.ok());
-  TlBufferParser parser(&buffer_slice);
-  auto result = buffer_slice.size() == 20 ? telegram_api::inputBotInlineMessageID::fetch(parser)
-                                          : telegram_api::inputBotInlineMessageID64::fetch(parser);
-  parser.fetch_end();
-  if (parser.get_error()) {
-    return nullptr;
-  }
-  if (!DcId::is_valid(get_inline_message_dc_id(result))) {
-    return nullptr;
-  }
-  LOG(INFO) << "Have inline message identifier: " << to_string(result);
-  return result;
-}
-
-static Result<telegram_api::object_ptr<telegram_api::InputBotInlineMessageID>> get_input_bot_inline_message_id(
-    const string &inline_message_id) {
-  auto result = parse_input_bot_inline_message_id(inline_message_id);
-  if (result == nullptr) {
-    return Status::Error(400, "Invalid inline message identifier specified");
-  }
-  return std::move(result);
-}
-
-class EditInlineMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit EditInlineMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputBotInlineMessageID> input_bot_inline_message_id,
-            bool force_edit_text, const string &text,
-            vector<telegram_api::object_ptr<telegram_api::MessageEntity>> &&entities, bool disable_web_page_preview,
-            telegram_api::object_ptr<telegram_api::InputMedia> &&input_media, bool invert_media,
-            telegram_api::object_ptr<telegram_api::ReplyMarkup> &&reply_markup) {
-    CHECK(input_bot_inline_message_id != nullptr);
-
-    // file in an inline message can't be uploaded to another datacenter,
-    // so only previously uploaded files or URLs can be used in the InputMedia
-    CHECK(!FileManager::extract_was_uploaded(input_media));
-
-    int32 flags = 0;
-    if (disable_web_page_preview) {
-      flags |= telegram_api::messages_editInlineBotMessage::NO_WEBPAGE_MASK;
-    }
-    if (reply_markup != nullptr) {
-      flags |= telegram_api::messages_editInlineBotMessage::REPLY_MARKUP_MASK;
-    }
-    if (!entities.empty()) {
-      flags |= telegram_api::messages_editInlineBotMessage::ENTITIES_MASK;
-    }
-    if (force_edit_text || !text.empty()) {
-      flags |= telegram_api::messages_editInlineBotMessage::MESSAGE_MASK;
-    }
-    if (input_media != nullptr) {
-      flags |= telegram_api::messages_editInlineBotMessage::MEDIA_MASK;
-    }
-    if (invert_media) {
-      flags |= telegram_api::messages_editInlineBotMessage::INVERT_MEDIA_MASK;
-    }
-
-    auto dc_id = DcId::internal(get_inline_message_dc_id(input_bot_inline_message_id));
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_editInlineBotMessage(
-            flags, false /*ignored*/, false /*ignored*/, std::move(input_bot_inline_message_id), text,
-            std::move(input_media), std::move(reply_markup), std::move(entities)),
-        {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editInlineBotMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG_IF(ERROR, !result_ptr.ok()) << "Receive false in result of editInlineMessage";
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for EditInlineMessageQuery: " << status;
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetInlineGameScoreQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetInlineGameScoreQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputBotInlineMessageID> input_bot_inline_message_id, bool edit_message,
-            tl_object_ptr<telegram_api::InputUser> input_user, int32 score, bool force) {
-    CHECK(input_bot_inline_message_id != nullptr);
-    CHECK(input_user != nullptr);
-
-    int32 flags = 0;
-    if (edit_message) {
-      flags |= telegram_api::messages_setInlineGameScore::EDIT_MESSAGE_MASK;
-    }
-    if (force) {
-      flags |= telegram_api::messages_setInlineGameScore::FORCE_MASK;
-    }
-
-    auto dc_id = DcId::internal(get_inline_message_dc_id(input_bot_inline_message_id));
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_setInlineGameScore(flags, false /*ignored*/, false /*ignored*/,
-                                                  std::move(input_bot_inline_message_id), std::move(input_user), score),
-        {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setInlineGameScore>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG_IF(ERROR, !result_ptr.ok()) << "Receive false in result of setInlineGameScore";
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SetInlineGameScoreQuery: " << status;
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetInlineGameHighScoresQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::gameHighScores>> promise_;
-
- public:
-  explicit GetInlineGameHighScoresQuery(Promise<td_api::object_ptr<td_api::gameHighScores>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputBotInlineMessageID> input_bot_inline_message_id,
-            tl_object_ptr<telegram_api::InputUser> input_user) {
-    CHECK(input_bot_inline_message_id != nullptr);
-    CHECK(input_user != nullptr);
-
-    auto dc_id = DcId::internal(get_inline_message_dc_id(input_bot_inline_message_id));
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getInlineGameHighScores(std::move(input_bot_inline_message_id), std::move(input_user)),
-        {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getInlineGameHighScores>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(td_->game_manager_->get_game_high_scores_object(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-InlineMessageManager::InlineMessageManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void InlineMessageManager::tear_down() {
-  parent_.reset();
-}
-
-void InlineMessageManager::edit_inline_message_text(
-    const string &inline_message_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content, Promise<Unit> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  if (input_message_content == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't edit message without new content"));
-  }
-  int32 new_message_content_type = input_message_content->get_id();
-  if (new_message_content_type != td_api::inputMessageText::ID) {
-    return promise.set_error(Status::Error(400, "Input message content type must be InputMessageText"));
-  }
-
-  TRY_RESULT_PROMISE(
-      promise, input_message_text,
-      process_input_message_text(td_, DialogId(), std::move(input_message_content), td_->auth_manager_->is_bot()));
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-  TRY_RESULT_PROMISE(promise, input_bot_inline_message_id, get_input_bot_inline_message_id(inline_message_id));
-
-  td_->create_handler<EditInlineMessageQuery>(std::move(promise))
-      ->send(std::move(input_bot_inline_message_id), true, input_message_text.text.text,
-             get_input_message_entities(td_->user_manager_.get(), input_message_text.text.entities,
-                                        "edit_inline_message_text"),
-             input_message_text.disable_web_page_preview, input_message_text.get_input_media_web_page(),
-             input_message_text.show_above_text, get_input_reply_markup(td_->user_manager_.get(), new_reply_markup));
-}
-
-void InlineMessageManager::edit_inline_message_live_location(const string &inline_message_id,
-                                                             td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                                             td_api::object_ptr<td_api::location> &&input_location,
-                                                             int32 live_period, int32 heading,
-                                                             int32 proximity_alert_radius, Promise<Unit> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-  TRY_RESULT_PROMISE(promise, input_bot_inline_message_id, get_input_bot_inline_message_id(inline_message_id));
-
-  Location location(input_location);
-  if (location.empty() && input_location != nullptr) {
-    return promise.set_error(Status::Error(400, "Invalid location specified"));
-  }
-
-  int32 flags = 0;
-  if (live_period != 0) {
-    flags |= telegram_api::inputMediaGeoLive::PERIOD_MASK;
-  }
-  if (heading != 0) {
-    flags |= telegram_api::inputMediaGeoLive::HEADING_MASK;
-  }
-  flags |= telegram_api::inputMediaGeoLive::PROXIMITY_NOTIFICATION_RADIUS_MASK;
-  auto input_media = telegram_api::make_object<telegram_api::inputMediaGeoLive>(
-      flags, location.empty(), location.get_input_geo_point(), heading, live_period, proximity_alert_radius);
-  td_->create_handler<EditInlineMessageQuery>(std::move(promise))
-      ->send(std::move(input_bot_inline_message_id), false, string(),
-             vector<telegram_api::object_ptr<telegram_api::MessageEntity>>(), false, std::move(input_media),
-             false /*ignored*/, get_input_reply_markup(td_->user_manager_.get(), new_reply_markup));
-}
-
-void InlineMessageManager::edit_inline_message_media(
-    const string &inline_message_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content, Promise<Unit> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  if (input_message_content == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't edit message without new content"));
-  }
-  int32 new_message_content_type = input_message_content->get_id();
-  if (new_message_content_type != td_api::inputMessageAnimation::ID &&
-      new_message_content_type != td_api::inputMessageAudio::ID &&
-      new_message_content_type != td_api::inputMessageDocument::ID &&
-      new_message_content_type != td_api::inputMessagePhoto::ID &&
-      new_message_content_type != td_api::inputMessageVideo::ID) {
-    return promise.set_error(Status::Error(400, "Unsupported input message content type"));
-  }
-
-  bool is_premium = td_->option_manager_->get_option_boolean("is_premium");
-  TRY_RESULT_PROMISE(promise, content,
-                     get_input_message_content(DialogId(), std::move(input_message_content), td_, is_premium));
-  if (!content.ttl.is_empty()) {
-    return promise.set_error(Status::Error(400, "Can't enable self-destruction for media"));
-  }
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-  TRY_RESULT_PROMISE(promise, input_bot_inline_message_id, get_input_bot_inline_message_id(inline_message_id));
-
-  auto input_media =
-      get_message_content_input_media(content.content.get(), td_, MessageSelfDestructType(), string(), true);
-  if (input_media == nullptr) {
-    return promise.set_error(Status::Error(400, "Invalid message content specified"));
-  }
-
-  const FormattedText *caption = get_message_content_caption(content.content.get());
-  td_->create_handler<EditInlineMessageQuery>(std::move(promise))
-      ->send(std::move(input_bot_inline_message_id), true, caption == nullptr ? "" : caption->text,
-             get_input_message_entities(td_->user_manager_.get(), caption, "edit_inline_message_media"), false,
-             std::move(input_media), content.invert_media,
-             get_input_reply_markup(td_->user_manager_.get(), new_reply_markup));
-}
-
-void InlineMessageManager::edit_inline_message_caption(const string &inline_message_id,
-                                                       td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                                       td_api::object_ptr<td_api::formattedText> &&input_caption,
-                                                       bool invert_media, Promise<Unit> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, caption,
-                     get_formatted_text(td_, td_->dialog_manager_->get_my_dialog_id(), std::move(input_caption),
-                                        td_->auth_manager_->is_bot(), true, false, false));
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-  TRY_RESULT_PROMISE(promise, input_bot_inline_message_id, get_input_bot_inline_message_id(inline_message_id));
-
-  td_->create_handler<EditInlineMessageQuery>(std::move(promise))
-      ->send(std::move(input_bot_inline_message_id), true, caption.text,
-             get_input_message_entities(td_->user_manager_.get(), caption.entities, "edit_inline_message_caption"),
-             false, nullptr, invert_media, get_input_reply_markup(td_->user_manager_.get(), new_reply_markup));
-}
-
-void InlineMessageManager::edit_inline_message_reply_markup(const string &inline_message_id,
-                                                            td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                                            Promise<Unit> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false, true));
-  TRY_RESULT_PROMISE(promise, input_bot_inline_message_id, get_input_bot_inline_message_id(inline_message_id));
-
-  td_->create_handler<EditInlineMessageQuery>(std::move(promise))
-      ->send(std::move(input_bot_inline_message_id), false, string(),
-             vector<telegram_api::object_ptr<telegram_api::MessageEntity>>(), false, nullptr, false /*ignored*/,
-             get_input_reply_markup(td_->user_manager_.get(), new_reply_markup));
-}
-
-void InlineMessageManager::set_inline_game_score(const string &inline_message_id, bool edit_message, UserId user_id,
-                                                 int32 score, bool force, Promise<Unit> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, input_bot_inline_message_id, get_input_bot_inline_message_id(inline_message_id));
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  td_->create_handler<SetInlineGameScoreQuery>(std::move(promise))
-      ->send(std::move(input_bot_inline_message_id), edit_message, std::move(input_user), score, force);
-}
-
-void InlineMessageManager::get_inline_game_high_scores(const string &inline_message_id, UserId user_id,
-                                                       Promise<td_api::object_ptr<td_api::gameHighScores>> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, input_bot_inline_message_id, get_input_bot_inline_message_id(inline_message_id));
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  td_->create_handler<GetInlineGameHighScoresQuery>(std::move(promise))
-      ->send(std::move(input_bot_inline_message_id), std::move(input_user));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InlineMessageManager.h b/third-party/td/td/td/telegram/InlineMessageManager.h
deleted file mode 100644
index 4a64086417..0000000000
--- a/third-party/td/td/td/telegram/InlineMessageManager.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class InlineMessageManager final : public Actor {
- public:
-  InlineMessageManager(Td *td, ActorShared<> parent);
-
-  void edit_inline_message_text(const string &inline_message_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                Promise<Unit> &&promise);
-
-  void edit_inline_message_live_location(const string &inline_message_id,
-                                         td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                         td_api::object_ptr<td_api::location> &&input_location, int32 live_period,
-                                         int32 heading, int32 proximity_alert_radius, Promise<Unit> &&promise);
-
-  void edit_inline_message_media(const string &inline_message_id,
-                                 td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                 td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                 Promise<Unit> &&promise);
-
-  void edit_inline_message_caption(const string &inline_message_id,
-                                   td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                   td_api::object_ptr<td_api::formattedText> &&input_caption, bool invert_media,
-                                   Promise<Unit> &&promise);
-
-  void edit_inline_message_reply_markup(const string &inline_message_id,
-                                        td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                        Promise<Unit> &&promise);
-
-  void set_inline_game_score(const string &inline_message_id, bool edit_message, UserId user_id, int32 score,
-                             bool force, Promise<Unit> &&promise);
-
-  void get_inline_game_high_scores(const string &inline_message_id, UserId user_id,
-                                   Promise<td_api::object_ptr<td_api::gameHighScores>> &&promise);
-
- private:
-  void tear_down() final;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InlineQueriesManager.cpp b/third-party/td/td/td/telegram/InlineQueriesManager.cpp
deleted file mode 100644
index e6a5bcb4ae..0000000000
--- a/third-party/td/td/td/telegram/InlineQueriesManager.cpp
+++ /dev/null
@@ -1,2376 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/InlineQueriesManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Contact.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Game.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/InputInvoice.h"
-#include "td/telegram/InputMessageText.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/TargetDialogTypes.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.hpp"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TopDialogCategory.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Venue.h"
-#include "td/telegram/VideosManager.h"
-#include "td/telegram/VoiceNotesManager.h"
-#include "td/telegram/WebAppOpenParameters.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/emoji.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class GetInlineBotResultsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::inlineQueryResults>> promise_;
-  DialogId dialog_id_;
-  UserId bot_user_id_;
-  uint64 query_hash_;
-
- public:
-  explicit GetInlineBotResultsQuery(Promise<td_api::object_ptr<td_api::inlineQueryResults>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  NetQueryRef send(UserId bot_user_id, DialogId dialog_id, tl_object_ptr<telegram_api::InputUser> bot_input_user,
-                   tl_object_ptr<telegram_api::InputPeer> input_peer, Location user_location, const string &query,
-                   const string &offset, uint64 query_hash) {
-    CHECK(input_peer != nullptr);
-    bot_user_id_ = bot_user_id;
-    dialog_id_ = dialog_id;
-    query_hash_ = query_hash;
-    int32 flags = 0;
-    if (!user_location.empty()) {
-      flags |= telegram_api::messages_getInlineBotResults::GEO_POINT_MASK;
-    }
-
-    auto net_query = G()->net_query_creator().create(telegram_api::messages_getInlineBotResults(
-        flags, std::move(bot_input_user), std::move(input_peer),
-        user_location.empty() ? nullptr : user_location.get_input_geo_point(), query, offset));
-    auto result = net_query.get_weak();
-    net_query->need_resend_on_503_ = false;
-    send_query(std::move(net_query));
-    return result;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getInlineBotResults>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->inline_queries_manager_->on_get_inline_query_results(dialog_id_, bot_user_id_, query_hash_,
-                                                              result_ptr.move_as_ok(), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.code() == NetQuery::Canceled) {
-      status = Status::Error(406, "Request canceled");
-    } else if (status.message() == "BOT_RESPONSE_TIMEOUT") {
-      status = Status::Error(502, "The bot is not responding");
-    }
-    LOG(INFO) << "Receive error for GetInlineBotResultsQuery: " << status;
-
-    td_->inline_queries_manager_->on_get_inline_query_results(dialog_id_, bot_user_id_, query_hash_, nullptr, Auto());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetInlineBotResultsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetInlineBotResultsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 inline_query_id, bool is_gallery, bool is_personal,
-            telegram_api::object_ptr<telegram_api::inlineBotSwitchPM> switch_pm,
-            telegram_api::object_ptr<telegram_api::inlineBotWebView> web_view,
-            vector<tl_object_ptr<telegram_api::InputBotInlineResult>> &&results, int32 cache_time,
-            const string &next_offset) {
-    int32 flags = 0;
-    if (is_gallery) {
-      flags |= telegram_api::messages_setInlineBotResults::GALLERY_MASK;
-    }
-    if (is_personal) {
-      flags |= telegram_api::messages_setInlineBotResults::PRIVATE_MASK;
-    }
-    if (!next_offset.empty()) {
-      flags |= telegram_api::messages_setInlineBotResults::NEXT_OFFSET_MASK;
-    }
-    if (switch_pm != nullptr) {
-      flags |= telegram_api::messages_setInlineBotResults::SWITCH_PM_MASK;
-    }
-    if (web_view != nullptr) {
-      flags |= telegram_api::messages_setInlineBotResults::SWITCH_WEBVIEW_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_setInlineBotResults(
-        flags, false /*ignored*/, false /*ignored*/, inline_query_id, std::move(results), cache_time, next_offset,
-        std::move(switch_pm), std::move(web_view))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setInlineBotResults>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      LOG(ERROR) << "Sending answer to an inline query has failed";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SavePreparedInlineMessageQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::preparedInlineMessageId>> promise_;
-
- public:
-  explicit SavePreparedInlineMessageQuery(Promise<td_api::object_ptr<td_api::preparedInlineMessageId>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-            telegram_api::object_ptr<telegram_api::InputBotInlineResult> &&result, TargetDialogTypes types) {
-    int32 flags = 0;
-    auto peer_types = types.get_input_peer_types();
-    if (!peer_types.empty()) {
-      flags |= telegram_api::messages_savePreparedInlineMessage::PEER_TYPES_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_savePreparedInlineMessage(
-        flags, std::move(result), std::move(input_user), std::move(peer_types))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_savePreparedInlineMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SavePreparedInlineMessageQuery: " << to_string(ptr);
-    promise_.set_value(td_api::make_object<td_api::preparedInlineMessageId>(ptr->id_, ptr->expire_date_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPreparedInlineMessageQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::preparedInlineMessage>> promise_;
-  UserId bot_user_id_;
-  uint64 query_hash_;
-
- public:
-  explicit GetPreparedInlineMessageQuery(Promise<td_api::object_ptr<td_api::preparedInlineMessage>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-            const string &prepared_message_id, uint64 query_hash) {
-    bot_user_id_ = bot_user_id;
-    query_hash_ = query_hash;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getPreparedInlineMessage(std::move(input_user), prepared_message_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPreparedInlineMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPreparedInlineMessageQuery: " << to_string(ptr);
-    td_->inline_queries_manager_->on_get_prepared_inline_message(bot_user_id_, query_hash_, std::move(ptr),
-                                                                 std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->inline_queries_manager_->on_get_prepared_inline_message(bot_user_id_, query_hash_, nullptr, Auto());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RequestSimpleWebViewQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit RequestSimpleWebViewQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputUser> &&input_user, string url, const WebAppOpenParameters &parameters) {
-    int32 flags = 0;
-    auto theme_parameters = parameters.get_input_theme_parameters();
-    if (theme_parameters != nullptr) {
-      flags |= telegram_api::messages_requestSimpleWebView::THEME_PARAMS_MASK;
-    }
-    string start_parameter;
-    if (ends_with(url, "#kb")) {
-      // a URL from keyboard button
-      url.resize(url.size() - 3);
-      flags |= telegram_api::messages_requestSimpleWebView::URL_MASK;
-    } else if (ends_with(url, "#iq")) {
-      // a URL from inline query results button
-      url.resize(url.size() - 3);
-      flags |= telegram_api::messages_requestSimpleWebView::FROM_SWITCH_WEBVIEW_MASK;
-      flags |= telegram_api::messages_requestSimpleWebView::URL_MASK;
-    } else if (url.empty()) {
-      flags |= telegram_api::messages_requestSimpleWebView::FROM_SIDE_MENU_MASK;
-    } else if (begins_with(url, "start://")) {
-      start_parameter = url.substr(8);
-      url = string();
-
-      flags |= telegram_api::messages_requestSimpleWebView::FROM_SIDE_MENU_MASK;
-      flags |= telegram_api::messages_requestSimpleWebView::START_PARAM_MASK;
-    } else {
-      return on_error(Status::Error(400, "Invalid URL specified"));
-    }
-    if (parameters.is_compact()) {
-      flags |= telegram_api::messages_requestSimpleWebView::COMPACT_MASK;
-    }
-    if (parameters.is_full_screen()) {
-      flags |= telegram_api::messages_requestSimpleWebView::FULLSCREEN_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_requestSimpleWebView(
-        flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/, std::move(input_user), url,
-        start_parameter, std::move(theme_parameters), parameters.get_application_name())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_requestSimpleWebView>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for RequestSimpleWebViewQuery: " << to_string(ptr);
-    LOG_IF(ERROR, ptr->query_id_ != 0) << "Receive " << to_string(ptr);
-    promise_.set_value(std::move(ptr->url_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendWebViewDataQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SendWebViewDataQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputUser> &&input_user, int64 random_id, const string &button_text,
-            const string &data) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendWebViewData(std::move(input_user), random_id, button_text, data)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendWebViewData>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendWebViewDataQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendWebViewResultMessageQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::sentWebAppMessage>> promise_;
-
- public:
-  explicit SendWebViewResultMessageQuery(Promise<td_api::object_ptr<td_api::sentWebAppMessage>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &bot_query_id, tl_object_ptr<telegram_api::InputBotInlineResult> &&result) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendWebViewResultMessage(bot_query_id, std::move(result))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendWebViewResultMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendWebViewResultMessageQuery: " << to_string(ptr);
-    promise_.set_value(td_api::make_object<td_api::sentWebAppMessage>(
-        InlineQueriesManager::get_inline_message_id(std::move(ptr->msg_id_))));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-InlineQueriesManager::InlineQueriesManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  drop_inline_query_result_timeout_.set_callback(on_drop_inline_query_result_timeout_callback);
-  drop_inline_query_result_timeout_.set_callback_data(static_cast<void *>(this));
-
-  drop_inline_query_message_timeout_.set_callback(on_drop_inline_query_message_timeout_callback);
-  drop_inline_query_message_timeout_.set_callback_data(static_cast<void *>(this));
-
-  next_inline_query_time_ = Time::now();
-}
-
-void InlineQueriesManager::tear_down() {
-  parent_.reset();
-}
-
-void InlineQueriesManager::on_drop_inline_query_result_timeout_callback(void *inline_queries_manager_ptr,
-                                                                        int64 query_hash) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto inline_queries_manager = static_cast<InlineQueriesManager *>(inline_queries_manager_ptr);
-  send_closure_later(inline_queries_manager->actor_id(inline_queries_manager),
-                     &InlineQueriesManager::on_drop_inline_query_result_timeout, query_hash);
-}
-
-void InlineQueriesManager::on_drop_inline_query_result_timeout(int64 query_hash) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto it = inline_query_results_.find(query_hash);
-  CHECK(it != inline_query_results_.end());
-  CHECK(it->second.pending_request_count >= 0);
-  if (it->second.pending_request_count == 0) {
-    if (it->second.results != nullptr) {
-      auto query_id = it->second.results->inline_query_id_;
-      if (query_id) {
-        drop_inline_query_message_timeout_.set_timeout_in(query_id, 3600);
-      }
-    }
-    inline_query_results_.erase(it);
-  }
-}
-
-void InlineQueriesManager::on_drop_inline_query_message_timeout_callback(void *inline_queries_manager_ptr,
-                                                                         int64 query_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto inline_queries_manager = static_cast<InlineQueriesManager *>(inline_queries_manager_ptr);
-  send_closure_later(inline_queries_manager->actor_id(inline_queries_manager),
-                     &InlineQueriesManager::on_drop_inline_query_message_timeout, query_id);
-}
-
-void InlineQueriesManager::on_drop_inline_query_message_timeout(int64 query_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  inline_message_contents_.erase(query_id);
-  query_id_to_bot_user_id_.erase(query_id);
-}
-
-void InlineQueriesManager::after_get_difference() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (recently_used_bots_loaded_ < 2) {
-    Promise<Unit> promise;
-    load_recently_used_bots(promise);
-  }
-}
-
-string InlineQueriesManager::get_inline_message_id(
-    tl_object_ptr<telegram_api::InputBotInlineMessageID> &&input_bot_inline_message_id) {
-  if (input_bot_inline_message_id == nullptr) {
-    return string();
-  }
-  LOG(INFO) << "Receive inline message identifier: " << to_string(input_bot_inline_message_id);
-
-  return base64url_encode(serialize(*input_bot_inline_message_id));
-}
-
-Result<tl_object_ptr<telegram_api::InputBotInlineMessage>> InlineQueriesManager::get_inline_message(
-    tl_object_ptr<td_api::InputMessageContent> &&input_message_content,
-    tl_object_ptr<td_api::ReplyMarkup> &&reply_markup_ptr, int32 allowed_media_content_id) const {
-  if (input_message_content == nullptr) {
-    return Status::Error(400, "Inline message must be non-empty");
-  }
-  TRY_RESULT(reply_markup, get_reply_markup(std::move(reply_markup_ptr), true, true, false, true));
-  auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), reply_markup);
-
-  auto constructor_id = input_message_content->get_id();
-  if (constructor_id == td_api::inputMessageText::ID) {
-    TRY_RESULT(input_message_text, process_input_message_text(td_, td_->dialog_manager_->get_my_dialog_id(),
-                                                              std::move(input_message_content), true));
-    auto entities =
-        get_input_message_entities(td_->user_manager_.get(), input_message_text.text.entities, "get_inline_message");
-    if (!input_message_text.web_page_url.empty()) {
-      int32 flags = 0;
-      if (input_reply_markup != nullptr) {
-        flags |= telegram_api::inputBotInlineMessageMediaWebPage::REPLY_MARKUP_MASK;
-      }
-      if (!entities.empty()) {
-        flags |= telegram_api::inputBotInlineMessageMediaWebPage::ENTITIES_MASK;
-      }
-      bool is_optional = !input_message_text.text.text.empty();
-      return make_tl_object<telegram_api::inputBotInlineMessageMediaWebPage>(
-          flags, input_message_text.show_above_text, input_message_text.force_large_media,
-          input_message_text.force_small_media, is_optional, std::move(input_message_text.text.text),
-          std::move(entities), input_message_text.web_page_url, std::move(input_reply_markup));
-    }
-    int32 flags = 0;
-    if (input_reply_markup != nullptr) {
-      flags |= telegram_api::inputBotInlineMessageText::REPLY_MARKUP_MASK;
-    }
-    if (!entities.empty()) {
-      flags |= telegram_api::inputBotInlineMessageText::ENTITIES_MASK;
-    }
-    return make_tl_object<telegram_api::inputBotInlineMessageText>(
-        flags, input_message_text.disable_web_page_preview, input_message_text.show_above_text,
-        std::move(input_message_text.text.text), std::move(entities), std::move(input_reply_markup));
-  }
-  if (constructor_id == td_api::inputMessageContact::ID) {
-    TRY_RESULT(contact, process_input_message_contact(td_, std::move(input_message_content)));
-    return contact.get_input_bot_inline_message_media_contact(std::move(input_reply_markup));
-  }
-  if (constructor_id == td_api::inputMessageInvoice::ID) {
-    TRY_RESULT(input_invoice,
-               InputInvoice::process_input_message_invoice(std::move(input_message_content), td_, DialogId()));
-    return input_invoice.get_input_bot_inline_message_media_invoice(std::move(input_reply_markup), td_);
-  }
-  if (constructor_id == td_api::inputMessageLocation::ID) {
-    TRY_RESULT(location, process_input_message_location(std::move(input_message_content)));
-    int32 flags = 0;
-    if (input_reply_markup != nullptr) {
-      flags |= telegram_api::inputBotInlineMessageMediaGeo::REPLY_MARKUP_MASK;
-    }
-    if (location.heading != 0) {
-      flags |= telegram_api::inputBotInlineMessageMediaGeo::HEADING_MASK;
-    }
-    if (location.live_period != 0) {
-      flags |= telegram_api::inputBotInlineMessageMediaGeo::PERIOD_MASK;
-      flags |= telegram_api::inputBotInlineMessageMediaGeo::PROXIMITY_NOTIFICATION_RADIUS_MASK;
-    }
-    return make_tl_object<telegram_api::inputBotInlineMessageMediaGeo>(
-        flags, location.location.get_input_geo_point(), location.heading, location.live_period,
-        location.proximity_alert_radius, std::move(input_reply_markup));
-  }
-  if (constructor_id == td_api::inputMessageVenue::ID) {
-    TRY_RESULT(venue, process_input_message_venue(std::move(input_message_content)));
-    return venue.get_input_bot_inline_message_media_venue(std::move(input_reply_markup));
-  }
-  if (constructor_id == allowed_media_content_id) {
-    TRY_RESULT(caption, get_formatted_text(td_, td_->dialog_manager_->get_my_dialog_id(),
-                                           extract_input_caption(input_message_content), true, true, true, false));
-    int32 flags = 0;
-    if (input_reply_markup != nullptr) {
-      flags |= telegram_api::inputBotInlineMessageMediaAuto::REPLY_MARKUP_MASK;
-    }
-    auto entities = get_input_message_entities(td_->user_manager_.get(), caption.entities, "get_inline_message");
-    if (!entities.empty()) {
-      flags |= telegram_api::inputBotInlineMessageMediaAuto::ENTITIES_MASK;
-    }
-    bool invert_media = extract_input_invert_media(input_message_content);
-    return make_tl_object<telegram_api::inputBotInlineMessageMediaAuto>(
-        flags, invert_media, caption.text, std::move(entities), std::move(input_reply_markup));
-  }
-  return Status::Error(400, "Unallowed inline message content type");
-}
-
-bool InlineQueriesManager::register_inline_message_content(
-    int64 query_id, const string &result_id, FileId file_id,
-    tl_object_ptr<telegram_api::BotInlineMessage> &&inline_message, int32 allowed_media_content_id, bool is_secret_chat,
-    Photo *photo, Game *game) {
-  CHECK(query_id != 0);
-  if (result_id.empty()) {
-    return false;
-  }
-
-  InlineMessageContent content =
-      create_inline_message_content(td_, file_id, std::move(inline_message), allowed_media_content_id, photo, game);
-  if (content.message_content != nullptr) {
-    if (is_secret_chat && !can_send_message_content_to_secret_chat(content.message_content->get_type())) {
-      return false;
-    }
-
-    inline_message_contents_[query_id].emplace(result_id, std::move(content));
-    return true;
-  }
-  return false;
-}
-
-const InlineMessageContent *InlineQueriesManager::get_inline_message_content(int64 query_id, const string &result_id) {
-  auto it = inline_message_contents_.find(query_id);
-  if (it == inline_message_contents_.end()) {
-    return nullptr;
-  }
-
-  auto result_it = it->second.find(result_id);
-  if (result_it == it->second.end()) {
-    return nullptr;
-  }
-
-  if (update_bot_usage(get_inline_bot_user_id(query_id))) {
-    save_recently_used_bots();
-  }
-  return &result_it->second;
-}
-
-UserId InlineQueriesManager::get_inline_bot_user_id(int64 query_id) const {
-  auto it = query_id_to_bot_user_id_.find(query_id);
-  if (it == query_id_to_bot_user_id_.end()) {
-    return UserId();
-  }
-  return it->second;
-}
-
-void InlineQueriesManager::answer_inline_query(
-    int64 inline_query_id, bool is_personal, td_api::object_ptr<td_api::inlineQueryResultsButton> &&button,
-    vector<td_api::object_ptr<td_api::InputInlineQueryResult>> &&input_results, int32 cache_time,
-    const string &next_offset, Promise<Unit> &&promise) const {
-  CHECK(td_->auth_manager_->is_bot());
-
-  telegram_api::object_ptr<telegram_api::inlineBotSwitchPM> switch_pm;
-  telegram_api::object_ptr<telegram_api::inlineBotWebView> web_view;
-  if (button != nullptr) {
-    if (!clean_input_string(button->text_)) {
-      return promise.set_error(Status::Error(400, "Strings must be encoded in UTF-8"));
-    }
-    if (button->type_ == nullptr) {
-      return promise.set_error(Status::Error(400, "Button type must be non-empty"));
-    }
-    switch (button->type_->get_id()) {
-      case td_api::inlineQueryResultsButtonTypeStartBot::ID: {
-        auto type = td_api::move_object_as<td_api::inlineQueryResultsButtonTypeStartBot>(button->type_);
-        if (type->parameter_.empty()) {
-          return promise.set_error(Status::Error(400, "Can't use empty start_parameter"));
-        }
-        if (type->parameter_.size() > 64) {
-          return promise.set_error(Status::Error(400, "Too long start_parameter specified"));
-        }
-        if (!is_base64url_characters(type->parameter_)) {
-          return promise.set_error(Status::Error(400, "Unallowed characters in start_parameter are used"));
-        }
-        switch_pm = telegram_api::make_object<telegram_api::inlineBotSwitchPM>(button->text_, type->parameter_);
-        break;
-      }
-      case td_api::inlineQueryResultsButtonTypeWebApp::ID: {
-        auto type = td_api::move_object_as<td_api::inlineQueryResultsButtonTypeWebApp>(button->type_);
-        auto user_id = LinkManager::get_link_user_id(type->url_);
-        if (user_id.is_valid()) {
-          return promise.set_error(Status::Error(400, "Link to a user can't be used in the Web App button"));
-        }
-        auto r_url = LinkManager::check_link(type->url_, true, !G()->is_test_dc());
-        if (r_url.is_error()) {
-          return promise.set_error(
-              Status::Error(400, PSLICE() << "Inline query button Web App " << r_url.error().message()));
-        }
-        web_view = telegram_api::make_object<telegram_api::inlineBotWebView>(button->text_, type->url_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  vector<tl_object_ptr<telegram_api::InputBotInlineResult>> results;
-  bool is_gallery = false;
-  bool force_vertical = false;
-  for (auto &input_result : input_results) {
-    TRY_RESULT_PROMISE(promise, result,
-                       get_input_bot_inline_result(std::move(input_result), &is_gallery, &force_vertical));
-    results.push_back(std::move(result));
-  }
-
-  td_->create_handler<SetInlineBotResultsQuery>(std::move(promise))
-      ->send(inline_query_id, is_gallery && !force_vertical, is_personal, std::move(switch_pm), std::move(web_view),
-             std::move(results), cache_time, next_offset);
-}
-
-void InlineQueriesManager::save_prepared_inline_message(
-    UserId user_id, td_api::object_ptr<td_api::InputInlineQueryResult> &&input_result,
-    td_api::object_ptr<td_api::targetChatTypes> &&chat_types,
-    Promise<td_api::object_ptr<td_api::preparedInlineMessageId>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-  TRY_RESULT_PROMISE(promise, result, get_input_bot_inline_result(std::move(input_result), nullptr, nullptr));
-  TRY_RESULT_PROMISE(promise, types, TargetDialogTypes::get_target_dialog_types(chat_types));
-
-  td_->create_handler<SavePreparedInlineMessageQuery>(std::move(promise))
-      ->send(std::move(input_user), std::move(result), types);
-}
-
-void InlineQueriesManager::get_prepared_inline_message(
-    UserId bot_user_id, const string &prepared_message_id,
-    Promise<td_api::object_ptr<td_api::preparedInlineMessage>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-
-  uint64 query_hash = Hash<string>()(prepared_message_id);
-  query_hash = query_hash * 2023654985u + bot_user_id.get();
-  query_hash &= 0x7FFFFFFFFFFFFFFF;
-  if (query_hash == 0) {
-    query_hash = 1;
-  }
-
-  auto it = inline_query_results_.find(query_hash);
-  if (it != inline_query_results_.end()) {
-    if (it->second.is_inline_query) {
-      return promise.set_error(Status::Error(500, "Request hash collision"));
-    }
-    it->second.pending_request_count++;
-    if (Time::now() < it->second.cache_expire_time) {
-      return promise.set_value(get_prepared_inline_message_object(query_hash));
-    }
-  } else {
-    inline_query_results_[query_hash] = {nullptr, -1.0, 1, 0, false};
-  }
-
-  td_->create_handler<GetPreparedInlineMessageQuery>(std::move(promise))
-      ->send(bot_user_id, std::move(input_user), prepared_message_id, query_hash);
-}
-
-void InlineQueriesManager::get_simple_web_view_url(UserId bot_user_id, string &&url,
-                                                   const WebAppOpenParameters &parameters, Promise<string> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-  TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(bot_user_id));
-  on_dialog_used(TopDialogCategory::BotApp, DialogId(bot_user_id), G()->unix_time());
-
-  td_->create_handler<RequestSimpleWebViewQuery>(std::move(promise))
-      ->send(std::move(input_user), std::move(url), parameters);
-}
-
-void InlineQueriesManager::send_web_view_data(UserId bot_user_id, string &&button_text, string &&data,
-                                              Promise<Unit> &&promise) const {
-  TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(bot_user_id));
-
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0);
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-
-  td_->create_handler<SendWebViewDataQuery>(std::move(promise))
-      ->send(std::move(input_user), random_id, button_text, data);
-}
-
-void InlineQueriesManager::answer_web_view_query(
-    const string &web_view_query_id, td_api::object_ptr<td_api::InputInlineQueryResult> &&input_result,
-    Promise<td_api::object_ptr<td_api::sentWebAppMessage>> &&promise) const {
-  CHECK(td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, result, get_input_bot_inline_result(std::move(input_result), nullptr, nullptr));
-
-  td_->create_handler<SendWebViewResultMessageQuery>(std::move(promise))->send(web_view_query_id, std::move(result));
-}
-
-Result<tl_object_ptr<telegram_api::InputBotInlineResult>> InlineQueriesManager::get_input_bot_inline_result(
-    td_api::object_ptr<td_api::InputInlineQueryResult> &&result, bool *is_gallery, bool *force_vertical) const {
-  if (result == nullptr) {
-    return Status::Error(400, "Inline query result must be non-empty");
-  }
-
-  string id;
-  string url;
-  string type;
-  string title;
-  string description;
-  string thumbnail_url;
-  string thumbnail_type = "image/jpeg";
-  string content_url;
-  string content_type;
-  int32 thumbnail_width = 0;
-  int32 thumbnail_height = 0;
-  int32 width = 0;
-  int32 height = 0;
-  int32 duration = 0;
-
-  FileType file_type = FileType::Temp;
-  Result<tl_object_ptr<telegram_api::InputBotInlineMessage>> r_inline_message = Status::Error(500, "Uninited");
-  switch (result->get_id()) {
-    case td_api::inputInlineQueryResultAnimation::ID: {
-      auto animation = move_tl_object_as<td_api::inputInlineQueryResultAnimation>(result);
-      type = "gif";
-      id = std::move(animation->id_);
-      title = std::move(animation->title_);
-      thumbnail_url = std::move(animation->thumbnail_url_);
-      if (!animation->thumbnail_mime_type_.empty()) {
-        thumbnail_type = std::move(animation->thumbnail_mime_type_);
-      }
-      content_url = std::move(animation->video_url_);
-      content_type = std::move(animation->video_mime_type_);
-      if (content_type != "image/gif" && content_type != "video/mp4") {
-        return Status::Error(400, "Wrong animation MIME type specified");
-      }
-      duration = animation->video_duration_;
-      width = animation->video_width_;
-      height = animation->video_height_;
-      if (is_gallery != nullptr) {
-        *is_gallery = true;
-      }
-
-      file_type = FileType::Animation;
-      r_inline_message = get_inline_message(std::move(animation->input_message_content_),
-                                            std::move(animation->reply_markup_), td_api::inputMessageAnimation::ID);
-      break;
-    }
-    case td_api::inputInlineQueryResultArticle::ID: {
-      auto article = move_tl_object_as<td_api::inputInlineQueryResultArticle>(result);
-      type = "article";
-      id = std::move(article->id_);
-      url = std::move(article->url_);
-      title = std::move(article->title_);
-      description = std::move(article->description_);
-      thumbnail_url = std::move(article->thumbnail_url_);
-      if (!thumbnail_url.empty()) {
-        thumbnail_width = article->thumbnail_width_;
-        thumbnail_height = article->thumbnail_height_;
-      }
-      if (force_vertical != nullptr) {
-        *force_vertical = true;
-      }
-
-      r_inline_message =
-          get_inline_message(std::move(article->input_message_content_), std::move(article->reply_markup_), -1);
-      break;
-    }
-    case td_api::inputInlineQueryResultAudio::ID: {
-      auto audio = move_tl_object_as<td_api::inputInlineQueryResultAudio>(result);
-      type = "audio";
-      id = std::move(audio->id_);
-      title = std::move(audio->title_);
-      description = std::move(audio->performer_);
-      content_url = std::move(audio->audio_url_);
-      content_type = "audio/mpeg";
-      duration = audio->audio_duration_;
-      if (force_vertical != nullptr) {
-        *force_vertical = true;
-      }
-
-      file_type = FileType::Audio;
-      r_inline_message = get_inline_message(std::move(audio->input_message_content_), std::move(audio->reply_markup_),
-                                            td_api::inputMessageAudio::ID);
-      break;
-    }
-    case td_api::inputInlineQueryResultContact::ID: {
-      auto contact = move_tl_object_as<td_api::inputInlineQueryResultContact>(result);
-      if (contact->contact_ == nullptr) {
-        return Status::Error(400, "Contact must be non-empty");
-      }
-      type = "contact";
-      id = std::move(contact->id_);
-      string phone_number = trim(contact->contact_->phone_number_);
-      string first_name = trim(contact->contact_->first_name_);
-      string last_name = trim(contact->contact_->last_name_);
-      if (phone_number.empty()) {
-        return Status::Error(400, "Field \"phone_number\" must contain a valid phone number");
-      }
-      if (first_name.empty()) {
-        return Status::Error(400, "Field \"first_name\" must be non-empty");
-      }
-      if (last_name.empty()) {
-        title = std::move(first_name);
-      } else {
-        title = PSTRING() << first_name << ' ' << last_name;
-      }
-      description = std::move(phone_number);
-      thumbnail_url = std::move(contact->thumbnail_url_);
-      if (!thumbnail_url.empty()) {
-        thumbnail_width = contact->thumbnail_width_;
-        thumbnail_height = contact->thumbnail_height_;
-      }
-      if (force_vertical != nullptr) {
-        *force_vertical = true;
-      }
-
-      r_inline_message =
-          get_inline_message(std::move(contact->input_message_content_), std::move(contact->reply_markup_), -1);
-      break;
-    }
-    case td_api::inputInlineQueryResultDocument::ID: {
-      auto document = move_tl_object_as<td_api::inputInlineQueryResultDocument>(result);
-      type = "file";
-      id = std::move(document->id_);
-      title = std::move(document->title_);
-      description = std::move(document->description_);
-      thumbnail_url = std::move(document->thumbnail_url_);
-      content_url = std::move(document->document_url_);
-      content_type = std::move(document->mime_type_);
-      thumbnail_width = document->thumbnail_width_;
-      thumbnail_height = document->thumbnail_height_;
-
-      if (content_url.find('.') != string::npos) {
-        if (begins_with(content_type, "application/pdf")) {
-          content_type = "application/pdf";
-        } else if (begins_with(content_type, "application/zip")) {
-          content_type = "application/zip";
-        } else {
-          return Status::Error(400, "Unallowed document MIME type");
-        }
-      }
-
-      file_type = FileType::Document;
-      r_inline_message = get_inline_message(std::move(document->input_message_content_),
-                                            std::move(document->reply_markup_), td_api::inputMessageDocument::ID);
-      break;
-    }
-    case td_api::inputInlineQueryResultGame::ID: {
-      auto game = move_tl_object_as<td_api::inputInlineQueryResultGame>(result);
-      auto r_reply_markup = get_reply_markup(std::move(game->reply_markup_), true, true, false, true);
-      if (r_reply_markup.is_error()) {
-        return r_reply_markup.move_as_error();
-      }
-
-      auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), r_reply_markup.ok());
-      int32 flags = 0;
-      if (input_reply_markup != nullptr) {
-        flags |= telegram_api::inputBotInlineMessageGame::REPLY_MARKUP_MASK;
-      }
-      return make_tl_object<telegram_api::inputBotInlineResultGame>(
-          game->id_, game->game_short_name_,
-          make_tl_object<telegram_api::inputBotInlineMessageGame>(flags, std::move(input_reply_markup)));
-    }
-    case td_api::inputInlineQueryResultLocation::ID: {
-      auto location = move_tl_object_as<td_api::inputInlineQueryResultLocation>(result);
-      if (location->location_ == nullptr) {
-        return Status::Error(400, "Location must be non-empty");
-      }
-      type = "geo";
-      id = std::move(location->id_);
-      title = std::move(location->title_);
-      description = PSTRING() << location->location_->latitude_ << ' ' << location->location_->longitude_;
-      thumbnail_url = std::move(location->thumbnail_url_);
-      // duration = location->live_period_;
-      if (!thumbnail_url.empty()) {
-        thumbnail_width = location->thumbnail_width_;
-        thumbnail_height = location->thumbnail_height_;
-      }
-
-      r_inline_message =
-          get_inline_message(std::move(location->input_message_content_), std::move(location->reply_markup_), -1);
-      break;
-    }
-    case td_api::inputInlineQueryResultPhoto::ID: {
-      auto photo = move_tl_object_as<td_api::inputInlineQueryResultPhoto>(result);
-      type = "photo";
-      id = std::move(photo->id_);
-      title = std::move(photo->title_);
-      description = std::move(photo->description_);
-      thumbnail_url = std::move(photo->thumbnail_url_);
-      content_url = std::move(photo->photo_url_);
-      content_type = "image/jpeg";
-      width = photo->photo_width_;
-      height = photo->photo_height_;
-      if (is_gallery != nullptr) {
-        *is_gallery = true;
-      }
-
-      file_type = FileType::Photo;
-      r_inline_message = get_inline_message(std::move(photo->input_message_content_), std::move(photo->reply_markup_),
-                                            td_api::inputMessagePhoto::ID);
-      break;
-    }
-    case td_api::inputInlineQueryResultSticker::ID: {
-      auto sticker = move_tl_object_as<td_api::inputInlineQueryResultSticker>(result);
-      type = "sticker";
-      id = std::move(sticker->id_);
-      thumbnail_url = std::move(sticker->thumbnail_url_);
-      content_url = std::move(sticker->sticker_url_);
-      content_type = "image/webp";  // or "application/x-tgsticker"/"video/webm"; not used for previously uploaded files
-      width = sticker->sticker_width_;
-      height = sticker->sticker_height_;
-      if (is_gallery != nullptr) {
-        *is_gallery = true;
-      }
-      if (content_url.find('.') != string::npos) {
-        return Status::Error(400, "Wrong sticker_file_id specified");
-      }
-
-      file_type = FileType::Sticker;
-      r_inline_message = get_inline_message(std::move(sticker->input_message_content_),
-                                            std::move(sticker->reply_markup_), td_api::inputMessageSticker::ID);
-      break;
-    }
-    case td_api::inputInlineQueryResultVenue::ID: {
-      auto venue = move_tl_object_as<td_api::inputInlineQueryResultVenue>(result);
-      if (venue->venue_ == nullptr) {
-        return Status::Error(400, "Venue must be non-empty");
-      }
-      type = "venue";
-      id = std::move(venue->id_);
-      title = std::move(venue->venue_->title_);
-      description = std::move(venue->venue_->address_);
-      thumbnail_url = std::move(venue->thumbnail_url_);
-      if (!thumbnail_url.empty()) {
-        thumbnail_width = venue->thumbnail_width_;
-        thumbnail_height = venue->thumbnail_height_;
-      }
-
-      r_inline_message =
-          get_inline_message(std::move(venue->input_message_content_), std::move(venue->reply_markup_), -1);
-      break;
-    }
-    case td_api::inputInlineQueryResultVideo::ID: {
-      auto video = move_tl_object_as<td_api::inputInlineQueryResultVideo>(result);
-      type = "video";
-      id = std::move(video->id_);
-      title = std::move(video->title_);
-      description = std::move(video->description_);
-      thumbnail_url = std::move(video->thumbnail_url_);
-      content_url = std::move(video->video_url_);
-      content_type = std::move(video->mime_type_);
-      width = video->video_width_;
-      height = video->video_height_;
-      duration = video->video_duration_;
-
-      if (content_url.find('.') != string::npos) {
-        if (begins_with(content_type, "video/mp4")) {
-          content_type = "video/mp4";
-        } else if (begins_with(content_type, "text/html")) {
-          content_type = "text/html";
-        } else {
-          return Status::Error(400, "Unallowed video MIME type");
-        }
-      }
-
-      file_type = FileType::Video;
-      r_inline_message = get_inline_message(std::move(video->input_message_content_), std::move(video->reply_markup_),
-                                            td_api::inputMessageVideo::ID);
-      break;
-    }
-    case td_api::inputInlineQueryResultVoiceNote::ID: {
-      auto voice_note = move_tl_object_as<td_api::inputInlineQueryResultVoiceNote>(result);
-      type = "voice";
-      id = std::move(voice_note->id_);
-      title = std::move(voice_note->title_);
-      content_url = std::move(voice_note->voice_note_url_);
-      content_type = "audio/ogg";
-      duration = voice_note->voice_note_duration_;
-      if (force_vertical != nullptr) {
-        *force_vertical = true;
-      }
-
-      file_type = FileType::VoiceNote;
-      r_inline_message = get_inline_message(std::move(voice_note->input_message_content_),
-                                            std::move(voice_note->reply_markup_), td_api::inputMessageVoiceNote::ID);
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-  if (r_inline_message.is_error()) {
-    return r_inline_message.move_as_error();
-  }
-  auto inline_message = r_inline_message.move_as_ok();
-  if (inline_message->get_id() == telegram_api::inputBotInlineMessageMediaAuto::ID && file_type == FileType::Temp) {
-    return Status::Error(400, "Sent message content must be explicitly specified");
-  }
-
-  if (duration < 0) {
-    duration = 0;
-  }
-
-  int32 flags = 0;
-  if (!title.empty()) {
-    flags |= telegram_api::inputBotInlineResult::TITLE_MASK;
-    if (!clean_input_string(title)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-  }
-  if (!description.empty()) {
-    flags |= telegram_api::inputBotInlineResult::DESCRIPTION_MASK;
-    if (!clean_input_string(description)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-  }
-
-  if (file_type != FileType::Temp && content_url.find('.') == string::npos) {
-    TRY_RESULT(file_id, td_->file_manager_->get_input_file_id(
-                            file_type, make_tl_object<td_api::inputFileRemote>(content_url), DialogId(), false, false));
-    FileView file_view = td_->file_manager_->get_file_view(file_id);
-    if (file_view.is_encrypted()) {
-      return Status::Error(400, "Can't send encrypted file");
-    }
-    const auto *main_remote_location = file_view.get_main_remote_location();
-    CHECK(main_remote_location != nullptr);
-    if (main_remote_location->is_web()) {
-      return Status::Error(400, "Can't send web file");
-    }
-
-    if (file_type == FileType::Photo) {
-      return make_tl_object<telegram_api::inputBotInlineResultPhoto>(id, type, main_remote_location->as_input_photo(),
-                                                                     std::move(inline_message));
-    }
-
-    return make_tl_object<telegram_api::inputBotInlineResultDocument>(
-        flags, id, type, title, description, main_remote_location->as_input_document(), std::move(inline_message));
-  }
-
-  if (!url.empty()) {
-    flags |= telegram_api::inputBotInlineResult::URL_MASK;
-    if (!clean_input_string(url)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-  }
-  tl_object_ptr<telegram_api::inputWebDocument> thumbnail;
-  if (!thumbnail_url.empty()) {
-    flags |= telegram_api::inputBotInlineResult::THUMB_MASK;
-    if (!clean_input_string(thumbnail_url)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    if (thumbnail_width > 0 && thumbnail_height > 0) {
-      attributes.push_back(
-          telegram_api::make_object<telegram_api::documentAttributeImageSize>(thumbnail_width, thumbnail_height));
-    }
-    thumbnail = make_tl_object<telegram_api::inputWebDocument>(thumbnail_url, 0, thumbnail_type, std::move(attributes));
-  }
-  tl_object_ptr<telegram_api::inputWebDocument> content;
-  if (!content_url.empty() || !content_type.empty()) {
-    flags |= telegram_api::inputBotInlineResult::CONTENT_MASK;
-    if (!clean_input_string(content_url)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-    if (!clean_input_string(content_type)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    if (width > 0 && height > 0) {
-      if ((duration > 0 || type == "video" || content_type == "video/mp4") && !begins_with(content_type, "image/")) {
-        attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeVideo>(
-            0, false, false, false, duration, width, height, 0, 0.0, string()));
-      } else {
-        attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeImageSize>(width, height));
-      }
-    } else if (type == "audio") {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeAudio>(
-          telegram_api::documentAttributeAudio::TITLE_MASK | telegram_api::documentAttributeAudio::PERFORMER_MASK,
-          false, duration, title, description, BufferSlice()));
-    } else if (type == "voice") {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeAudio>(0, true, duration, string(),
-                                                                                           string(), BufferSlice()));
-    }
-    attributes.push_back(
-        telegram_api::make_object<telegram_api::documentAttributeFilename>(get_url_file_name(content_url)));
-
-    content =
-        telegram_api::make_object<telegram_api::inputWebDocument>(content_url, 0, content_type, std::move(attributes));
-  }
-
-  return telegram_api::make_object<telegram_api::inputBotInlineResult>(
-      flags, id, type, title, description, url, std::move(thumbnail), std::move(content), std::move(inline_message));
-}
-
-void InlineQueriesManager::get_weather(Location location,
-                                       Promise<td_api::object_ptr<td_api::currentWeather>> &&promise) {
-  if (location.empty()) {
-    return promise.set_error(Status::Error(400, "Location must be non-empty"));
-  }
-  auto bot_username = td_->option_manager_->get_option_string("weather_bot_username");
-  if (bot_username.empty()) {
-    LOG(ERROR) << "Have no weather bot";
-    return promise.set_error(Status::Error(500, "Not supported"));
-  }
-  td_->dialog_manager_->resolve_dialog(
-      bot_username, ChannelId(),
-      PromiseCreator::lambda([actor_id = actor_id(this), location = std::move(location),
-                              promise = std::move(promise)](Result<DialogId> r_bot_dialog_id) mutable {
-        if (r_bot_dialog_id.is_error()) {
-          return promise.set_error(r_bot_dialog_id.move_as_error());
-        }
-        send_closure(actor_id, &InlineQueriesManager::do_get_weather, r_bot_dialog_id.ok(), std::move(location),
-                     std::move(promise));
-      }));
-}
-
-void InlineQueriesManager::do_get_weather(DialogId dialog_id, Location location,
-                                          Promise<td_api::object_ptr<td_api::currentWeather>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (dialog_id.get_type() != DialogType::User) {
-    LOG(ERROR) << "Weather bot isn't a user";
-    return promise.set_error(Status::Error(500, "Not supported"));
-  }
-  send_inline_query(
-      dialog_id.get_user_id(), DialogId(), std::move(location), string(), string(),
-      PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                 Result<td_api::object_ptr<td_api::inlineQueryResults>> r_results) mutable {
-        if (r_results.is_error()) {
-          return promise.set_error(Status::Error(500, "Not supported"));
-        }
-        send_closure(actor_id, &InlineQueriesManager::on_get_weather, r_results.move_as_ok(), std::move(promise));
-      }));
-}
-
-void InlineQueriesManager::on_get_weather(td_api::object_ptr<td_api::inlineQueryResults> results,
-                                          Promise<td_api::object_ptr<td_api::currentWeather>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (results->results_.size() != 1u || results->results_[0]->get_id() != td_api::inlineQueryResultArticle::ID) {
-    LOG(ERROR) << "Receive " << to_string(results);
-    return promise.set_error(Status::Error(500, "Not supported"));
-  }
-  auto result = td_api::move_object_as<td_api::inlineQueryResultArticle>(results->results_[0]);
-  if (!is_emoji(result->title_)) {
-    LOG(ERROR) << "Receive " << to_string(results);
-    return promise.set_error(Status::Error(500, "Not supported"));
-  }
-  promise.set_value(td_api::make_object<td_api::currentWeather>(to_double(result->description_), result->title_));
-}
-
-void InlineQueriesManager::send_inline_query(UserId bot_user_id, DialogId dialog_id, Location user_location,
-                                             const string &query, const string &offset,
-                                             Promise<td_api::object_ptr<td_api::inlineQueryResults>> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(bot_user_id));
-  if (!bot_data.is_inline) {
-    return promise.set_error(Status::Error(400, "Bot doesn't support inline queries"));
-  }
-
-  auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-  if (input_peer == nullptr) {
-    input_peer = make_tl_object<telegram_api::inputPeerEmpty>();
-  }
-
-  auto peer_type = [&] {
-    switch (input_peer->get_id()) {
-      case telegram_api::inputPeerEmpty::ID:
-        return 0;
-      case telegram_api::inputPeerSelf::ID:
-        return 1;
-      case telegram_api::inputPeerChat::ID:
-        return 2;
-      case telegram_api::inputPeerUser::ID:
-      case telegram_api::inputPeerUserFromMessage::ID:
-        return dialog_id == DialogId(bot_user_id) ? 3 : 4;
-      case telegram_api::inputPeerChannel::ID:
-      case telegram_api::inputPeerChannelFromMessage::ID:
-        return 5 + static_cast<int>(td_->chat_manager_->get_channel_type(dialog_id.get_channel_id()));
-      default:
-        UNREACHABLE();
-        return -1;
-    }
-  }();
-
-  uint64 query_hash = Hash<string>()(trim(query));
-  query_hash = query_hash * 2023654985u + bot_user_id.get();
-  query_hash = query_hash * 2023654985u + static_cast<uint64>(peer_type);
-  query_hash = query_hash * 2023654985u + Hash<string>()(offset);
-  if (bot_data.need_location && !user_location.empty()) {
-    query_hash = query_hash * 2023654985u + static_cast<uint64>(user_location.get_latitude() * 1e4);
-    query_hash = query_hash * 2023654985u + static_cast<uint64>(user_location.get_longitude() * 1e4);
-  }
-  query_hash &= 0x7FFFFFFFFFFFFFFF;
-  if (query_hash == 0) {
-    query_hash = 1;
-  }
-
-  auto it = inline_query_results_.find(query_hash);
-  if (it != inline_query_results_.end()) {
-    if (!it->second.is_inline_query) {
-      return promise.set_error(Status::Error(500, "Request hash collision"));
-    }
-    it->second.pending_request_count++;
-    if (Time::now() < it->second.cache_expire_time) {
-      return promise.set_value(get_inline_query_results_object(query_hash));
-    }
-  } else {
-    inline_query_results_[query_hash] = {nullptr, -1.0, 1, 0, true};
-  }
-
-  if (pending_inline_query_ != nullptr) {
-    LOG(INFO) << "Drop inline query " << pending_inline_query_->query_hash;
-    on_get_inline_query_results(pending_inline_query_->dialog_id, pending_inline_query_->bot_user_id,
-                                pending_inline_query_->query_hash, nullptr, Auto());
-    pending_inline_query_->promise.set_error(Status::Error(406, "Request canceled"));
-  }
-
-  pending_inline_query_ = make_unique<PendingInlineQuery>(PendingInlineQuery{
-      query_hash, bot_user_id, dialog_id, std::move(input_peer), user_location, query, offset, std::move(promise)});
-
-  loop();
-}
-
-void InlineQueriesManager::loop() {
-  if (pending_inline_query_ == nullptr) {
-    return;
-  }
-
-  auto now = Time::now();
-  if (now >= next_inline_query_time_) {
-    LOG(INFO) << "Send inline query " << pending_inline_query_->query_hash;
-    auto r_bot_input_user = td_->user_manager_->get_input_user(pending_inline_query_->bot_user_id);
-    if (r_bot_input_user.is_ok()) {
-      if (!sent_query_.empty()) {
-        LOG(INFO) << "Cancel inline query request";
-        cancel_query(sent_query_);
-      }
-      sent_query_ = td_->create_handler<GetInlineBotResultsQuery>(std::move(pending_inline_query_->promise))
-                        ->send(pending_inline_query_->bot_user_id, pending_inline_query_->dialog_id,
-                               r_bot_input_user.move_as_ok(), std::move(pending_inline_query_->input_peer),
-                               pending_inline_query_->user_location, pending_inline_query_->query,
-                               pending_inline_query_->offset, pending_inline_query_->query_hash);
-
-      next_inline_query_time_ = now + INLINE_QUERY_DELAY_MS * 1e-3;
-    }
-    pending_inline_query_ = nullptr;
-  } else {
-    if (!has_timeout()) {
-      LOG(INFO) << "Schedule send inline query " << pending_inline_query_->query_hash << " in "
-                << next_inline_query_time_ - now;
-      set_timeout_at(next_inline_query_time_);
-    }
-  }
-}
-
-template <class T>
-static tl_object_ptr<T> copy(const T &obj) {
-  // see https://bugs.llvm.org/show_bug.cgi?id=17537
-  static_assert(sizeof(T) == 0, "Only specializations of <copy> can be used");
-}
-
-template <class T>
-static tl_object_ptr<T> copy(const tl_object_ptr<T> &obj) {
-  return obj == nullptr ? nullptr : copy(*obj);
-}
-
-template <>
-td_api::object_ptr<td_api::localFile> copy(const td_api::localFile &obj) {
-  return td_api::make_object<td_api::localFile>(
-      obj.path_, obj.can_be_downloaded_, obj.can_be_deleted_, obj.is_downloading_active_, obj.is_downloading_completed_,
-      obj.download_offset_, obj.downloaded_prefix_size_, obj.downloaded_size_);
-}
-template <>
-td_api::object_ptr<td_api::remoteFile> copy(const td_api::remoteFile &obj) {
-  return td_api::make_object<td_api::remoteFile>(obj.id_, obj.unique_id_, obj.is_uploading_active_,
-                                                 obj.is_uploading_completed_, obj.uploaded_size_);
-}
-
-template <>
-td_api::object_ptr<td_api::file> copy(const td_api::file &obj) {
-  FileId file_id(obj.id_, 0);  // wrong, but there should be no difference for get_file_object
-  if (file_id.is_valid()) {
-    return G()->td().get_actor_unsafe()->file_manager_.get()->get_file_object(file_id);
-  } else {
-    return td_api::make_object<td_api::file>(obj.id_, obj.size_, obj.expected_size_, copy(obj.local_),
-                                             copy(obj.remote_));
-  }
-}
-
-template <>
-tl_object_ptr<td_api::minithumbnail> copy(const td_api::minithumbnail &obj) {
-  return td_api::make_object<td_api::minithumbnail>(obj.width_, obj.height_, obj.data_);
-}
-
-template <>
-tl_object_ptr<td_api::photoSize> copy(const td_api::photoSize &obj) {
-  return td_api::make_object<td_api::photoSize>(obj.type_, copy(obj.photo_), obj.width_, obj.height_,
-                                                vector<int32>(obj.progressive_sizes_));
-}
-
-static tl_object_ptr<td_api::photoSize> copy_photo_size(const tl_object_ptr<td_api::photoSize> &obj) {
-  return copy(obj);
-}
-
-template <>
-tl_object_ptr<td_api::thumbnail> copy(const td_api::thumbnail &obj) {
-  auto format = [&]() -> td_api::object_ptr<td_api::ThumbnailFormat> {
-    switch (obj.format_->get_id()) {
-      case td_api::thumbnailFormatJpeg::ID:
-        return td_api::make_object<td_api::thumbnailFormatJpeg>();
-      case td_api::thumbnailFormatPng::ID:
-        return td_api::make_object<td_api::thumbnailFormatPng>();
-      case td_api::thumbnailFormatWebp::ID:
-        return td_api::make_object<td_api::thumbnailFormatWebp>();
-      case td_api::thumbnailFormatTgs::ID:
-        return td_api::make_object<td_api::thumbnailFormatTgs>();
-      case td_api::thumbnailFormatMpeg4::ID:
-        return td_api::make_object<td_api::thumbnailFormatMpeg4>();
-      case td_api::thumbnailFormatGif::ID:
-        return td_api::make_object<td_api::thumbnailFormatGif>();
-      default:
-        UNREACHABLE();
-        return nullptr;
-    }
-  }();
-
-  return td_api::make_object<td_api::thumbnail>(std::move(format), obj.width_, obj.height_, copy(obj.file_));
-}
-
-static tl_object_ptr<td_api::thumbnail> copy_thumbnail(const tl_object_ptr<td_api::thumbnail> &obj) {
-  return copy(obj);
-}
-
-template <>
-tl_object_ptr<td_api::StickerFormat> copy(const td_api::StickerFormat &obj) {
-  switch (obj.get_id()) {
-    case td_api::stickerFormatWebp::ID:
-      return td_api::make_object<td_api::stickerFormatWebp>();
-    case td_api::stickerFormatTgs::ID:
-      return td_api::make_object<td_api::stickerFormatTgs>();
-    case td_api::stickerFormatWebm::ID:
-      return td_api::make_object<td_api::stickerFormatWebm>();
-    default:
-      UNREACHABLE();
-  }
-  return nullptr;
-}
-
-template <>
-tl_object_ptr<td_api::MaskPoint> copy(const td_api::MaskPoint &obj) {
-  switch (obj.get_id()) {
-    case td_api::maskPointForehead::ID:
-      return td_api::make_object<td_api::maskPointForehead>();
-    case td_api::maskPointEyes::ID:
-      return td_api::make_object<td_api::maskPointEyes>();
-    case td_api::maskPointMouth::ID:
-      return td_api::make_object<td_api::maskPointMouth>();
-    case td_api::maskPointChin::ID:
-      return td_api::make_object<td_api::maskPointChin>();
-    default:
-      UNREACHABLE();
-  }
-  return nullptr;
-}
-
-template <>
-tl_object_ptr<td_api::maskPosition> copy(const td_api::maskPosition &obj) {
-  return td_api::make_object<td_api::maskPosition>(copy(obj.point_), obj.x_shift_, obj.y_shift_, obj.scale_);
-}
-
-template <>
-tl_object_ptr<td_api::StickerFullType> copy(const td_api::StickerFullType &obj) {
-  switch (obj.get_id()) {
-    case td_api::stickerFullTypeRegular::ID: {
-      auto &info = static_cast<const td_api::stickerFullTypeRegular &>(obj);
-      return td_api::make_object<td_api::stickerFullTypeRegular>(copy(info.premium_animation_));
-    }
-    case td_api::stickerFullTypeMask::ID: {
-      auto &info = static_cast<const td_api::stickerFullTypeMask &>(obj);
-      return td_api::make_object<td_api::stickerFullTypeMask>(copy(info.mask_position_));
-    }
-    case td_api::stickerFullTypeCustomEmoji::ID: {
-      auto &info = static_cast<const td_api::stickerFullTypeCustomEmoji &>(obj);
-      return td_api::make_object<td_api::stickerFullTypeCustomEmoji>(info.custom_emoji_id_, info.needs_repainting_);
-    }
-    default:
-      UNREACHABLE();
-  }
-  return nullptr;
-}
-
-template <>
-tl_object_ptr<td_api::SpeechRecognitionResult> copy(const td_api::SpeechRecognitionResult &obj) {
-  switch (obj.get_id()) {
-    case td_api::speechRecognitionResultPending::ID:
-      return td_api::make_object<td_api::speechRecognitionResultPending>(
-          static_cast<const td_api::speechRecognitionResultPending &>(obj).partial_text_);
-    case td_api::speechRecognitionResultText::ID:
-      return td_api::make_object<td_api::speechRecognitionResultText>(
-          static_cast<const td_api::speechRecognitionResultText &>(obj).text_);
-    case td_api::speechRecognitionResultError::ID: {
-      auto *error = static_cast<const td_api::speechRecognitionResultError &>(obj).error_.get();
-      return td_api::make_object<td_api::speechRecognitionResultError>(
-          td_api::make_object<td_api::error>(error->code_, error->message_));
-    }
-    default:
-      UNREACHABLE();
-  }
-  return nullptr;
-}
-
-template <>
-tl_object_ptr<td_api::animation> copy(const td_api::animation &obj) {
-  return td_api::make_object<td_api::animation>(obj.duration_, obj.width_, obj.height_, obj.file_name_, obj.mime_type_,
-                                                obj.has_stickers_, copy(obj.minithumbnail_), copy(obj.thumbnail_),
-                                                copy(obj.animation_));
-}
-
-template <>
-tl_object_ptr<td_api::audio> copy(const td_api::audio &obj) {
-  return td_api::make_object<td_api::audio>(obj.duration_, obj.title_, obj.performer_, obj.file_name_, obj.mime_type_,
-                                            copy(obj.album_cover_minithumbnail_), copy(obj.album_cover_thumbnail_),
-                                            transform(obj.external_album_covers_, copy_thumbnail), copy(obj.audio_));
-}
-
-template <>
-tl_object_ptr<td_api::document> copy(const td_api::document &obj) {
-  return td_api::make_object<td_api::document>(obj.file_name_, obj.mime_type_, copy(obj.minithumbnail_),
-                                               copy(obj.thumbnail_), copy(obj.document_));
-}
-
-template <>
-tl_object_ptr<td_api::photo> copy(const td_api::photo &obj) {
-  return td_api::make_object<td_api::photo>(obj.has_stickers_, copy(obj.minithumbnail_),
-                                            transform(obj.sizes_, copy_photo_size));
-}
-
-template <>
-tl_object_ptr<td_api::sticker> copy(const td_api::sticker &obj) {
-  return td_api::make_object<td_api::sticker>(obj.id_, obj.set_id_, obj.width_, obj.height_, obj.emoji_,
-                                              copy(obj.format_), copy(obj.full_type_), copy(obj.thumbnail_),
-                                              copy(obj.sticker_));
-}
-
-template <>
-tl_object_ptr<td_api::video> copy(const td_api::video &obj) {
-  return td_api::make_object<td_api::video>(obj.duration_, obj.width_, obj.height_, obj.file_name_, obj.mime_type_,
-                                            obj.has_stickers_, obj.supports_streaming_, copy(obj.minithumbnail_),
-                                            copy(obj.thumbnail_), copy(obj.video_));
-}
-
-template <>
-tl_object_ptr<td_api::voiceNote> copy(const td_api::voiceNote &obj) {
-  return td_api::make_object<td_api::voiceNote>(obj.duration_, obj.waveform_, obj.mime_type_,
-                                                copy(obj.speech_recognition_result_), copy(obj.voice_));
-}
-
-template <>
-tl_object_ptr<td_api::contact> copy(const td_api::contact &obj) {
-  return td_api::make_object<td_api::contact>(obj.phone_number_, obj.first_name_, obj.last_name_, obj.vcard_,
-                                              obj.user_id_);
-}
-
-template <>
-tl_object_ptr<td_api::location> copy(const td_api::location &obj) {
-  return td_api::make_object<td_api::location>(obj.latitude_, obj.longitude_, obj.horizontal_accuracy_);
-}
-
-template <>
-tl_object_ptr<td_api::venue> copy(const td_api::venue &obj) {
-  return td_api::make_object<td_api::venue>(copy(obj.location_), obj.title_, obj.address_, obj.provider_, obj.id_,
-                                            obj.type_);
-}
-
-template <>
-tl_object_ptr<td_api::formattedText> copy(const td_api::formattedText &obj) {
-  // there are no entities in the game text
-  return td_api::make_object<td_api::formattedText>(obj.text_, vector<tl_object_ptr<td_api::textEntity>>());
-}
-
-template <>
-tl_object_ptr<td_api::game> copy(const td_api::game &obj) {
-  return td_api::make_object<td_api::game>(obj.id_, obj.short_name_, obj.title_, copy(obj.text_), obj.description_,
-                                           copy(obj.photo_), copy(obj.animation_));
-}
-
-template <>
-tl_object_ptr<td_api::InlineQueryResultsButtonType> copy(const td_api::InlineQueryResultsButtonType &obj) {
-  switch (obj.get_id()) {
-    case td_api::inlineQueryResultsButtonTypeStartBot::ID:
-      return td_api::make_object<td_api::inlineQueryResultsButtonTypeStartBot>(
-          static_cast<const td_api::inlineQueryResultsButtonTypeStartBot &>(obj).parameter_);
-    case td_api::inlineQueryResultsButtonTypeWebApp::ID:
-      return td_api::make_object<td_api::inlineQueryResultsButtonTypeWebApp>(
-          static_cast<const td_api::inlineQueryResultsButtonTypeWebApp &>(obj).url_);
-    default:
-      UNREACHABLE();
-  }
-  return nullptr;
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultsButton> copy(const td_api::inlineQueryResultsButton &obj) {
-  return td_api::make_object<td_api::inlineQueryResultsButton>(obj.text_, copy(obj.type_));
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultArticle> copy(const td_api::inlineQueryResultArticle &obj) {
-  return td_api::make_object<td_api::inlineQueryResultArticle>(obj.id_, obj.url_, obj.title_, obj.description_,
-                                                               copy(obj.thumbnail_));
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultContact> copy(const td_api::inlineQueryResultContact &obj) {
-  return td_api::make_object<td_api::inlineQueryResultContact>(obj.id_, copy(obj.contact_), copy(obj.thumbnail_));
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultLocation> copy(const td_api::inlineQueryResultLocation &obj) {
-  return td_api::make_object<td_api::inlineQueryResultLocation>(obj.id_, copy(obj.location_), obj.title_,
-                                                                copy(obj.thumbnail_));
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultVenue> copy(const td_api::inlineQueryResultVenue &obj) {
-  return td_api::make_object<td_api::inlineQueryResultVenue>(obj.id_, copy(obj.venue_), copy(obj.thumbnail_));
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultGame> copy(const td_api::inlineQueryResultGame &obj) {
-  return td_api::make_object<td_api::inlineQueryResultGame>(obj.id_, copy(obj.game_));
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultAnimation> copy(const td_api::inlineQueryResultAnimation &obj) {
-  return td_api::make_object<td_api::inlineQueryResultAnimation>(obj.id_, copy(obj.animation_), obj.title_);
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultAudio> copy(const td_api::inlineQueryResultAudio &obj) {
-  return td_api::make_object<td_api::inlineQueryResultAudio>(obj.id_, copy(obj.audio_));
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultDocument> copy(const td_api::inlineQueryResultDocument &obj) {
-  return td_api::make_object<td_api::inlineQueryResultDocument>(obj.id_, copy(obj.document_), obj.title_,
-                                                                obj.description_);
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultPhoto> copy(const td_api::inlineQueryResultPhoto &obj) {
-  return td_api::make_object<td_api::inlineQueryResultPhoto>(obj.id_, copy(obj.photo_), obj.title_, obj.description_);
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultSticker> copy(const td_api::inlineQueryResultSticker &obj) {
-  return td_api::make_object<td_api::inlineQueryResultSticker>(obj.id_, copy(obj.sticker_));
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultVideo> copy(const td_api::inlineQueryResultVideo &obj) {
-  return td_api::make_object<td_api::inlineQueryResultVideo>(obj.id_, copy(obj.video_), obj.title_, obj.description_);
-}
-
-template <>
-tl_object_ptr<td_api::inlineQueryResultVoiceNote> copy(const td_api::inlineQueryResultVoiceNote &obj) {
-  return td_api::make_object<td_api::inlineQueryResultVoiceNote>(obj.id_, copy(obj.voice_note_), obj.title_);
-}
-
-static tl_object_ptr<td_api::InlineQueryResult> copy_result(const tl_object_ptr<td_api::InlineQueryResult> &obj_ptr) {
-  tl_object_ptr<td_api::InlineQueryResult> result;
-  downcast_call(const_cast<td_api::InlineQueryResult &>(*obj_ptr), [&result](const auto &obj) { result = copy(obj); });
-  return result;
-}
-
-template <>
-td_api::object_ptr<td_api::inlineQueryResults> copy(const td_api::inlineQueryResults &obj) {
-  return td_api::make_object<td_api::inlineQueryResults>(obj.inline_query_id_, copy(obj.button_),
-                                                         transform(obj.results_, copy_result), obj.next_offset_);
-}
-
-td_api::object_ptr<td_api::inlineQueryResults> InlineQueriesManager::get_inline_query_results_object(
-    uint64 query_hash) {
-  auto it = inline_query_results_.find(query_hash);
-  CHECK(it != inline_query_results_.end());
-  CHECK(it->second.pending_request_count > 0);
-  CHECK(it->second.is_inline_query);
-  it->second.pending_request_count--;
-  LOG(INFO) << "Inline query " << query_hash << " is awaited by " << it->second.pending_request_count
-            << " pending requests";
-  if (it->second.pending_request_count == 0) {
-    drop_inline_query_result_timeout_.set_timeout_at(static_cast<int64>(query_hash), it->second.cache_expire_time);
-  }
-  return copy(it->second.results);
-}
-
-td_api::object_ptr<td_api::preparedInlineMessage> InlineQueriesManager::get_prepared_inline_message_object(
-    uint64 query_hash) {
-  auto it = inline_query_results_.find(query_hash);
-  CHECK(it != inline_query_results_.end());
-  CHECK(it->second.pending_request_count > 0);
-  CHECK(!it->second.is_inline_query);
-  it->second.pending_request_count--;
-  LOG(INFO) << "Inline message " << query_hash << " is awaited by " << it->second.pending_request_count
-            << " pending requests";
-  if (it->second.pending_request_count == 0) {
-    drop_inline_query_result_timeout_.set_timeout_at(static_cast<int64>(query_hash), it->second.cache_expire_time);
-  }
-  auto *results = it->second.results.get();
-  if (results == nullptr) {
-    return nullptr;
-  }
-  CHECK(results->results_.size() == 1u);
-  return td_api::make_object<td_api::preparedInlineMessage>(
-      results->inline_query_id_, copy_result(results->results_[0]),
-      TargetDialogTypes(it->second.target_dialog_types_mask).get_target_chat_types_object());
-}
-
-td_api::object_ptr<td_api::thumbnail> InlineQueriesManager::register_thumbnail(
-    tl_object_ptr<telegram_api::WebDocument> &&web_document_ptr) const {
-  PhotoSize thumbnail = get_web_document_photo_size(td_->file_manager_.get(), FileType::Thumbnail, DialogId(),
-                                                    std::move(web_document_ptr));
-  if (!thumbnail.file_id.is_valid() || thumbnail.type == 'v') {
-    return nullptr;
-  }
-
-  return get_thumbnail_object(td_->file_manager_.get(), thumbnail,
-                              thumbnail.type == 'g' ? PhotoFormat::Gif : PhotoFormat::Jpeg);
-}
-
-string InlineQueriesManager::get_web_document_url(const tl_object_ptr<telegram_api::WebDocument> &web_document_ptr) {
-  if (web_document_ptr == nullptr) {
-    return {};
-  }
-
-  Slice url;
-  switch (web_document_ptr->get_id()) {
-    case telegram_api::webDocument::ID: {
-      auto web_document = static_cast<const telegram_api::webDocument *>(web_document_ptr.get());
-      url = web_document->url_;
-      break;
-    }
-    case telegram_api::webDocumentNoProxy::ID: {
-      auto web_document = static_cast<const telegram_api::webDocumentNoProxy *>(web_document_ptr.get());
-      url = web_document->url_;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  auto r_http_url = parse_url(url);
-  if (r_http_url.is_error()) {
-    LOG(ERROR) << "Can't parse URL " << url;
-    return {};
-  }
-  return r_http_url.ok().get_url();
-}
-
-string InlineQueriesManager::get_web_document_content_type(
-    const tl_object_ptr<telegram_api::WebDocument> &web_document_ptr) {
-  if (web_document_ptr == nullptr) {
-    return {};
-  }
-
-  switch (web_document_ptr->get_id()) {
-    case telegram_api::webDocument::ID:
-      return static_cast<const telegram_api::webDocument *>(web_document_ptr.get())->mime_type_;
-    case telegram_api::webDocumentNoProxy::ID:
-      return static_cast<const telegram_api::webDocumentNoProxy *>(web_document_ptr.get())->mime_type_;
-    default:
-      UNREACHABLE();
-  }
-
-  return {};
-}
-
-td_api::object_ptr<td_api::InlineQueryResult> InlineQueriesManager::get_inline_query_result_object(
-    int64 query_id, DialogId dialog_id, telegram_api::object_ptr<telegram_api::BotInlineResult> result_ptr) {
-  auto dialog_type = dialog_id.get_type();
-  bool is_secret_chat = dialog_type == DialogType::SecretChat;
-  CHECK(result_ptr != nullptr);
-  switch (result_ptr->get_id()) {
-    case telegram_api::botInlineMediaResult::ID: {
-      auto result = telegram_api::move_object_as<telegram_api::botInlineMediaResult>(result_ptr);
-      bool has_document = result->document_ != nullptr;
-      bool has_photo = result->photo_ != nullptr;
-      bool is_photo = result->type_ == "photo";
-      if (result->type_ == "game") {
-        if (!has_photo) {
-          LOG(ERROR) << "Receive game without photo in the result of inline query: " << to_string(result);
-          break;
-        }
-        if (dialog_type == DialogType::Channel &&
-            td_->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id())) {
-          break;
-        }
-        if (dialog_type == DialogType::SecretChat) {
-          break;
-        }
-
-        auto game = td_api::make_object<td_api::inlineQueryResultGame>();
-        Game inline_game(td_, std::move(result->title_), std::move(result->description_), std::move(result->photo_),
-                         std::move(result->document_), DialogId());
-
-        game->id_ = std::move(result->id_);
-        game->game_ = inline_game.get_game_object(td_, true, true);
-
-        if (!register_inline_message_content(query_id, game->id_, FileId(), std::move(result->send_message_),
-                                             td_api::inputMessageGame::ID, is_secret_chat, nullptr, &inline_game)) {
-          break;
-        }
-        return std::move(game);
-      }
-      if (has_document && !(has_photo && is_photo)) {
-        auto document_ptr = std::move(result->document_);
-        int32 document_id = document_ptr->get_id();
-        if (document_id == telegram_api::documentEmpty::ID) {
-          LOG(ERROR) << "Receive empty cached document in the result of inline query";
-          break;
-        }
-        CHECK(document_id == telegram_api::document::ID);
-
-        auto parsed_document = td_->documents_manager_->on_get_document(
-            telegram_api::move_object_as<telegram_api::document>(document_ptr), DialogId(), false);
-        switch (parsed_document.type) {
-          case Document::Type::Animation: {
-            LOG_IF(WARNING, result->type_ != "gif") << "Wrong result type " << result->type_;
-
-            auto animation = td_api::make_object<td_api::inlineQueryResultAnimation>();
-            animation->id_ = std::move(result->id_);
-            animation->animation_ = td_->animations_manager_->get_animation_object(parsed_document.file_id);
-            animation->title_ = std::move(result->title_);
-
-            if (!register_inline_message_content(query_id, animation->id_, parsed_document.file_id,
-                                                 std::move(result->send_message_), td_api::inputMessageAnimation::ID,
-                                                 is_secret_chat)) {
-              break;
-            }
-            return std::move(animation);
-          }
-          case Document::Type::Audio: {
-            LOG_IF(WARNING, result->type_ != "audio") << "Wrong result type " << result->type_;
-
-            auto audio = td_api::make_object<td_api::inlineQueryResultAudio>();
-            audio->id_ = std::move(result->id_);
-            audio->audio_ = td_->audios_manager_->get_audio_object(parsed_document.file_id);
-
-            if (!register_inline_message_content(query_id, audio->id_, parsed_document.file_id,
-                                                 std::move(result->send_message_), td_api::inputMessageAudio::ID,
-                                                 is_secret_chat)) {
-              break;
-            }
-            return std::move(audio);
-          }
-          case Document::Type::General: {
-            LOG_IF(WARNING, result->type_ != "file") << "Wrong result type " << result->type_;
-
-            auto document = td_api::make_object<td_api::inlineQueryResultDocument>();
-            document->id_ = std::move(result->id_);
-            document->document_ =
-                td_->documents_manager_->get_document_object(parsed_document.file_id, PhotoFormat::Jpeg);
-            document->title_ = std::move(result->title_);
-            document->description_ = std::move(result->description_);
-
-            if (!register_inline_message_content(query_id, document->id_, parsed_document.file_id,
-                                                 std::move(result->send_message_), td_api::inputMessageDocument::ID,
-                                                 is_secret_chat)) {
-              break;
-            }
-            return std::move(document);
-          }
-          case Document::Type::Sticker: {
-            LOG_IF(WARNING, result->type_ != "sticker") << "Wrong result type " << result->type_;
-
-            auto sticker = td_api::make_object<td_api::inlineQueryResultSticker>();
-            sticker->id_ = std::move(result->id_);
-            sticker->sticker_ = td_->stickers_manager_->get_sticker_object(parsed_document.file_id);
-
-            if (!register_inline_message_content(query_id, sticker->id_, parsed_document.file_id,
-                                                 std::move(result->send_message_), td_api::inputMessageSticker::ID,
-                                                 is_secret_chat)) {
-              break;
-            }
-            return std::move(sticker);
-          }
-          case Document::Type::Video: {
-            LOG_IF(WARNING, result->type_ != "video") << "Wrong result type " << result->type_;
-
-            auto video = td_api::make_object<td_api::inlineQueryResultVideo>();
-            video->id_ = std::move(result->id_);
-            video->video_ = td_->videos_manager_->get_video_object(parsed_document.file_id);
-            video->title_ = std::move(result->title_);
-            video->description_ = std::move(result->description_);
-
-            if (!register_inline_message_content(query_id, video->id_, parsed_document.file_id,
-                                                 std::move(result->send_message_), td_api::inputMessageVideo::ID,
-                                                 is_secret_chat)) {
-              break;
-            }
-            return std::move(video);
-          }
-          case Document::Type::VideoNote:
-            // FIXME
-            break;
-          case Document::Type::VoiceNote: {
-            LOG_IF(WARNING, result->type_ != "voice") << "Wrong result type " << result->type_;
-
-            auto voice_note = td_api::make_object<td_api::inlineQueryResultVoiceNote>();
-            voice_note->id_ = std::move(result->id_);
-            voice_note->voice_note_ = td_->voice_notes_manager_->get_voice_note_object(parsed_document.file_id);
-            voice_note->title_ = std::move(result->title_);
-
-            if (!register_inline_message_content(query_id, voice_note->id_, parsed_document.file_id,
-                                                 std::move(result->send_message_), td_api::inputMessageVoiceNote::ID,
-                                                 is_secret_chat)) {
-              break;
-            }
-            return std::move(voice_note);
-          }
-          case Document::Type::Unknown:
-            // invalid document
-            break;
-          default:
-            UNREACHABLE();
-            break;
-        }
-        return nullptr;
-      }
-      if (has_photo) {
-        LOG_IF(ERROR, !is_photo) << "Wrong result type " << result->type_;
-        auto photo = td_api::make_object<td_api::inlineQueryResultPhoto>();
-        photo->id_ = std::move(result->id_);
-        Photo p = get_photo(td_, std::move(result->photo_), DialogId());
-        if (p.is_empty()) {
-          LOG(ERROR) << "Receive empty cached photo in the result of inline query";
-          break;
-        }
-        photo->photo_ = get_photo_object(td_->file_manager_.get(), p);
-        photo->title_ = std::move(result->title_);
-        photo->description_ = std::move(result->description_);
-
-        if (!register_inline_message_content(query_id, photo->id_, FileId(), std::move(result->send_message_),
-                                             td_api::inputMessagePhoto::ID, is_secret_chat, &p)) {
-          break;
-        }
-        return std::move(photo);
-      }
-      LOG(ERROR) << "Receive inline query media result without photo and document: " << to_string(result);
-      break;
-    }
-    case telegram_api::botInlineResult::ID: {
-      auto result = telegram_api::move_object_as<telegram_api::botInlineResult>(result_ptr);
-      auto content_type = get_web_document_content_type(result->content_);
-      if (result->type_ == "article") {
-        auto article = td_api::make_object<td_api::inlineQueryResultArticle>();
-        article->id_ = std::move(result->id_);
-        article->url_ = std::move(result->url_);
-        article->title_ = std::move(result->title_);
-        article->description_ = std::move(result->description_);
-        article->thumbnail_ = register_thumbnail(std::move(result->thumb_));
-
-        if (!register_inline_message_content(query_id, article->id_, FileId(), std::move(result->send_message_), -1,
-                                             is_secret_chat)) {
-          break;
-        }
-        return std::move(article);
-      }
-      if (result->type_ == "contact") {
-        auto contact = td_api::make_object<td_api::inlineQueryResultContact>();
-        contact->id_ = std::move(result->id_);
-        if (result->send_message_->get_id() == telegram_api::botInlineMessageMediaContact::ID) {
-          auto inline_message_contact =
-              static_cast<const telegram_api::botInlineMessageMediaContact *>(result->send_message_.get());
-          Contact c(inline_message_contact->phone_number_, inline_message_contact->first_name_,
-                    inline_message_contact->last_name_, inline_message_contact->vcard_, UserId());
-          contact->contact_ = c.get_contact_object(td_);
-        } else {
-          Contact c(std::move(result->description_), std::move(result->title_), string(), string(), UserId());
-          contact->contact_ = c.get_contact_object(td_);
-        }
-        contact->thumbnail_ = register_thumbnail(std::move(result->thumb_));
-
-        if (!register_inline_message_content(query_id, contact->id_, FileId(), std::move(result->send_message_), -1,
-                                             is_secret_chat)) {
-          break;
-        }
-        return std::move(contact);
-      }
-      if (result->type_ == "geo") {
-        auto location = td_api::make_object<td_api::inlineQueryResultLocation>();
-        location->id_ = std::move(result->id_);
-        location->title_ = std::move(result->title_);
-        if (result->send_message_->get_id() == telegram_api::botInlineMessageMediaGeo::ID) {
-          auto inline_message_geo =
-              static_cast<const telegram_api::botInlineMessageMediaGeo *>(result->send_message_.get());
-          Location l(td_, inline_message_geo->geo_);
-          location->location_ = l.get_location_object();
-        } else {
-          auto latitude_longitude = split(Slice(result->description_));
-          Location l(td_, to_double(latitude_longitude.first), to_double(latitude_longitude.second), 0.0, 0);
-          location->location_ = l.get_location_object();
-        }
-        location->thumbnail_ = register_thumbnail(std::move(result->thumb_));
-
-        if (!register_inline_message_content(query_id, location->id_, FileId(), std::move(result->send_message_), -1,
-                                             is_secret_chat)) {
-          break;
-        }
-        return std::move(location);
-      }
-      if (result->type_ == "venue") {
-        auto venue = td_api::make_object<td_api::inlineQueryResultVenue>();
-        venue->id_ = std::move(result->id_);
-        if (result->send_message_->get_id() == telegram_api::botInlineMessageMediaVenue::ID) {
-          auto inline_message_venue =
-              static_cast<const telegram_api::botInlineMessageMediaVenue *>(result->send_message_.get());
-          Venue v(td_, inline_message_venue->geo_, inline_message_venue->title_, inline_message_venue->address_,
-                  inline_message_venue->provider_, inline_message_venue->venue_id_, inline_message_venue->venue_type_);
-          venue->venue_ = v.get_venue_object();
-        } else if (result->send_message_->get_id() == telegram_api::botInlineMessageMediaGeo::ID) {
-          auto inline_message_geo =
-              static_cast<const telegram_api::botInlineMessageMediaGeo *>(result->send_message_.get());
-          Venue v(td_, inline_message_geo->geo_, std::move(result->title_), std::move(result->description_), string(),
-                  string(), string());
-          venue->venue_ = v.get_venue_object();
-        } else {
-          Venue v(td_, nullptr, std::move(result->title_), std::move(result->description_), string(), string(),
-                  string());
-          venue->venue_ = v.get_venue_object();
-        }
-        venue->thumbnail_ = register_thumbnail(std::move(result->thumb_));
-
-        if (!register_inline_message_content(query_id, venue->id_, FileId(), std::move(result->send_message_), -1,
-                                             is_secret_chat)) {
-          break;
-        }
-        return std::move(venue);
-      }
-      if (result->type_ == "photo" && content_type == "image/jpeg") {
-        auto photo = td_api::make_object<td_api::inlineQueryResultPhoto>();
-        photo->id_ = std::move(result->id_);
-
-        PhotoSize photo_size = get_web_document_photo_size(td_->file_manager_.get(), FileType::Temp, DialogId(),
-                                                           std::move(result->content_));
-        if (!photo_size.file_id.is_valid() || photo_size.type == 'v' || photo_size.type == 'g') {
-          LOG(ERROR) << "Receive invalid web document photo";
-          break;
-        }
-
-        Photo new_photo;
-        new_photo.id = 0;
-        PhotoSize thumbnail = get_web_document_photo_size(td_->file_manager_.get(), FileType::Thumbnail, DialogId(),
-                                                          std::move(result->thumb_));
-        if (thumbnail.file_id.is_valid() && thumbnail.type != 'v' && thumbnail.type != 'g') {
-          new_photo.photos.push_back(std::move(thumbnail));
-        }
-        new_photo.photos.push_back(std::move(photo_size));
-
-        photo->photo_ = get_photo_object(td_->file_manager_.get(), new_photo);
-        photo->title_ = std::move(result->title_);
-        photo->description_ = std::move(result->description_);
-
-        if (!register_inline_message_content(query_id, photo->id_, FileId(), std::move(result->send_message_),
-                                             td_api::inputMessagePhoto::ID, is_secret_chat, &new_photo)) {
-          break;
-        }
-        return std::move(photo);
-      }
-      if (result->content_ == nullptr) {
-        LOG(ERROR) << "Unsupported inline query result without content " << to_string(result);
-        break;
-      }
-
-      auto attributes = [content = result->content_.get()] {
-        switch (content->get_id()) {
-          case telegram_api::webDocument::ID:
-            return std::move(static_cast<telegram_api::webDocument *>(content)->attributes_);
-          case telegram_api::webDocumentNoProxy::ID:
-            return std::move(static_cast<telegram_api::webDocumentNoProxy *>(content)->attributes_);
-          default:
-            UNREACHABLE();
-            return vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>>();
-        }
-      }();
-
-      bool is_animation = result->type_ == "gif" && (content_type == "image/gif" || content_type == "video/mp4");
-      if (is_animation) {
-        attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeAnimated>());
-      }
-      auto default_document_type = [type = result->type_, is_animation] {
-        if (type == "audio") {
-          return Document::Type::Audio;
-        }
-        if (is_animation) {
-          return Document::Type::Animation;
-        }
-        if (type == "sticker") {
-          return Document::Type::Sticker;
-        }
-        if (type == "video") {
-          return Document::Type::Video;
-        }
-        if (type == "voice") {
-          return Document::Type::VoiceNote;
-        }
-        return Document::Type::General;
-      }();
-
-      auto parsed_document = td_->documents_manager_->on_get_document(
-          {std::move(result->content_),
-           get_web_document_photo_size(td_->file_manager_.get(), FileType::Thumbnail, DialogId(),
-                                       std::move(result->thumb_)),
-           std::move(attributes)},
-          DialogId(), false, nullptr, default_document_type);
-      auto file_id = parsed_document.file_id;
-      if (!file_id.is_valid()) {
-        break;
-      }
-      if (result->type_ == "audio" && parsed_document.type == Document::Type::Audio) {
-        auto audio = td_api::make_object<td_api::inlineQueryResultAudio>();
-        audio->id_ = std::move(result->id_);
-        audio->audio_ = td_->audios_manager_->get_audio_object(file_id);
-        if (!register_inline_message_content(query_id, audio->id_, file_id, std::move(result->send_message_),
-                                             td_api::inputMessageAudio::ID, is_secret_chat)) {
-          break;
-        }
-        return std::move(audio);
-      }
-      if (result->type_ == "file" && parsed_document.type == Document::Type::General) {
-        auto document = td_api::make_object<td_api::inlineQueryResultDocument>();
-        document->id_ = std::move(result->id_);
-        document->document_ = td_->documents_manager_->get_document_object(file_id, PhotoFormat::Jpeg);
-        document->title_ = std::move(result->title_);
-        document->description_ = std::move(result->description_);
-        if (!register_inline_message_content(query_id, document->id_, file_id, std::move(result->send_message_),
-                                             td_api::inputMessageDocument::ID, is_secret_chat)) {
-          break;
-        }
-        return std::move(document);
-      }
-      if (is_animation && parsed_document.type == Document::Type::Animation) {
-        auto animation = td_api::make_object<td_api::inlineQueryResultAnimation>();
-        animation->id_ = std::move(result->id_);
-        animation->animation_ = td_->animations_manager_->get_animation_object(file_id);
-        animation->title_ = std::move(result->title_);
-        if (!register_inline_message_content(query_id, animation->id_, file_id, std::move(result->send_message_),
-                                             td_api::inputMessageAnimation::ID, is_secret_chat)) {
-          break;
-        }
-        return std::move(animation);
-      }
-      if (result->type_ == "sticker" && parsed_document.type == Document::Type::Sticker) {
-        auto sticker = td_api::make_object<td_api::inlineQueryResultSticker>();
-        sticker->id_ = std::move(result->id_);
-        sticker->sticker_ = td_->stickers_manager_->get_sticker_object(file_id);
-        if (!register_inline_message_content(query_id, sticker->id_, file_id, std::move(result->send_message_),
-                                             td_api::inputMessageSticker::ID, is_secret_chat)) {
-          break;
-        }
-        return std::move(sticker);
-      }
-      if (result->type_ == "video" && parsed_document.type == Document::Type::Video) {
-        auto video = td_api::make_object<td_api::inlineQueryResultVideo>();
-        video->id_ = std::move(result->id_);
-        video->video_ = td_->videos_manager_->get_video_object(file_id);
-        video->title_ = std::move(result->title_);
-        video->description_ = std::move(result->description_);
-        if (!register_inline_message_content(query_id, video->id_, file_id, std::move(result->send_message_),
-                                             td_api::inputMessageVideo::ID, is_secret_chat)) {
-          break;
-        }
-        return std::move(video);
-      }
-      if (result->type_ == "voice" && parsed_document.type == Document::Type::VoiceNote) {
-        auto voice_note = td_api::make_object<td_api::inlineQueryResultVoiceNote>();
-        voice_note->id_ = std::move(result->id_);
-        voice_note->voice_note_ = td_->voice_notes_manager_->get_voice_note_object(file_id);
-        voice_note->title_ = std::move(result->title_);
-        if (!register_inline_message_content(query_id, voice_note->id_, file_id, std::move(result->send_message_),
-                                             td_api::inputMessageVoiceNote::ID, is_secret_chat)) {
-          break;
-        }
-        return std::move(voice_note);
-      }
-      LOG(WARNING) << "Unsupported inline query result " << to_string(result);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return nullptr;
-}
-
-void InlineQueriesManager::on_get_inline_query_results(
-    DialogId dialog_id, UserId bot_user_id, uint64 query_hash,
-    tl_object_ptr<telegram_api::messages_botResults> &&results,
-    Promise<td_api::object_ptr<td_api::inlineQueryResults>> promise) {
-  LOG(INFO) << "Receive results for inline query " << query_hash;
-  if (results == nullptr || results->query_id_ == 0) {
-    get_inline_query_results_object(query_hash);
-    return promise.set_error(Status::Error(500, "Receive no response"));
-  }
-  LOG(INFO) << to_string(results);
-
-  td_->user_manager_->on_get_users(std::move(results->users_), "on_get_inline_query_results");
-
-  vector<td_api::object_ptr<td_api::InlineQueryResult>> output_results;
-  for (auto &result_ptr : results->results_) {
-    auto output_result = get_inline_query_result_object(results->query_id_, dialog_id, std::move(result_ptr));
-    if (output_result != nullptr) {
-      output_results.push_back(std::move(output_result));
-    }
-  }
-
-  auto it = inline_query_results_.find(query_hash);
-  CHECK(it != inline_query_results_.end());
-  CHECK(it->second.is_inline_query);
-
-  query_id_to_bot_user_id_[results->query_id_] = bot_user_id;
-
-  td_api::object_ptr<td_api::inlineQueryResultsButton> button;
-  if (results->switch_pm_ != nullptr) {
-    button = td_api::make_object<td_api::inlineQueryResultsButton>(
-        results->switch_pm_->text_,
-        td_api::make_object<td_api::inlineQueryResultsButtonTypeStartBot>(results->switch_pm_->start_param_));
-  } else if (results->switch_webview_) {
-    button = td_api::make_object<td_api::inlineQueryResultsButton>(
-        results->switch_webview_->text_,
-        td_api::make_object<td_api::inlineQueryResultsButtonTypeWebApp>(results->switch_webview_->url_ + "#iq"));
-  }
-
-  it->second.results = make_tl_object<td_api::inlineQueryResults>(results->query_id_, std::move(button),
-                                                                  std::move(output_results), results->next_offset_);
-  it->second.cache_expire_time = Time::now() + results->cache_time_;
-  promise.set_value(get_inline_query_results_object(query_hash));
-}
-
-void InlineQueriesManager::on_get_prepared_inline_message(
-    UserId bot_user_id, uint64 query_hash,
-    telegram_api::object_ptr<telegram_api::messages_preparedInlineMessage> &&prepared_message,
-    Promise<td_api::object_ptr<td_api::preparedInlineMessage>> promise) {
-  if (prepared_message == nullptr || prepared_message->query_id_ == 0) {
-    get_prepared_inline_message_object(query_hash);
-    return promise.set_error(Status::Error(500, "Receive no response"));
-  }
-
-  td_->user_manager_->on_get_users(std::move(prepared_message->users_), "on_get_prepared_inline_message");
-
-  // messages.preparedInlineMessage#6187fa6d peer_types:Vector<InlineQueryPeerType> ;
-
-  auto output_result =
-      get_inline_query_result_object(prepared_message->query_id_, DialogId(), std::move(prepared_message->result_));
-  if (output_result == nullptr) {
-    get_prepared_inline_message_object(query_hash);
-    return promise.set_error(Status::Error(500, "Receive invalid response"));
-  }
-
-  auto it = inline_query_results_.find(query_hash);
-  CHECK(it != inline_query_results_.end());
-  CHECK(!it->second.is_inline_query);
-
-  query_id_to_bot_user_id_[prepared_message->query_id_] = bot_user_id;
-
-  vector<td_api::object_ptr<td_api::InlineQueryResult>> output_results;
-  output_results.push_back(std::move(output_result));
-  it->second.results = td_api::make_object<td_api::inlineQueryResults>(prepared_message->query_id_, nullptr,
-                                                                       std::move(output_results), string());
-  it->second.cache_expire_time = Time::now() + prepared_message->cache_time_;
-  it->second.target_dialog_types_mask = TargetDialogTypes(prepared_message->peer_types_).get_mask();
-  promise.set_value(get_prepared_inline_message_object(query_hash));
-}
-
-vector<UserId> InlineQueriesManager::get_recent_inline_bots(Promise<Unit> &&promise) {
-  if (!load_recently_used_bots(promise)) {
-    return vector<UserId>();
-  }
-
-  promise.set_value(Unit());
-  return recently_used_bot_user_ids_;
-}
-
-void InlineQueriesManager::save_recently_used_bots() {
-  if (recently_used_bots_loaded_ < 2) {
-    return;
-  }
-
-  string value;
-  string value_ids;
-  for (auto &bot_user_id : recently_used_bot_user_ids_) {
-    if (!value.empty()) {
-      value += ',';
-      value_ids += ',';
-    }
-    value += td_->user_manager_->get_user_first_username(bot_user_id);
-    value_ids += to_string(bot_user_id.get());
-  }
-  G()->td_db()->get_binlog_pmc()->set("recently_used_inline_bot_usernames", value);
-  G()->td_db()->get_binlog_pmc()->set("recently_used_inline_bots", value_ids);
-}
-
-bool InlineQueriesManager::load_recently_used_bots(Promise<Unit> &promise) {
-  if (recently_used_bots_loaded_ >= 2) {
-    return true;
-  }
-
-  string saved_bot_ids = G()->td_db()->get_binlog_pmc()->get("recently_used_inline_bots");
-  auto bot_ids = full_split(saved_bot_ids, ',');
-  string saved_bots = G()->td_db()->get_binlog_pmc()->get("recently_used_inline_bot_usernames");
-  auto bot_usernames = full_split(saved_bots, ',');
-  if (bot_ids.empty()) {
-    recently_used_bots_loaded_ = 2;
-    if (!recently_used_bot_user_ids_.empty()) {
-      save_recently_used_bots();
-    }
-    return true;
-  }
-
-  LOG(INFO) << "Load recently used inline bots " << saved_bots << '/' << saved_bot_ids;
-  if (recently_used_bots_loaded_ == 1 && resolve_recent_inline_bots_multipromise_.promise_count() == 0) {
-    // queries were sent and have already been finished
-    auto newly_used_bots = std::move(recently_used_bot_user_ids_);
-    recently_used_bot_user_ids_.clear();
-
-    for (auto it = bot_ids.rbegin(); it != bot_ids.rend(); ++it) {
-      UserId user_id(to_integer<int64>(*it));
-      if (td_->user_manager_->have_user(user_id)) {
-        update_bot_usage(user_id);
-      } else {
-        LOG(ERROR) << "Can't find " << user_id;
-      }
-    }
-    for (auto it = newly_used_bots.rbegin(); it != newly_used_bots.rend(); ++it) {
-      update_bot_usage(*it);
-    }
-    recently_used_bots_loaded_ = 2;
-    if (!newly_used_bots.empty()) {
-      save_recently_used_bots();
-    }
-    return true;
-  }
-
-  resolve_recent_inline_bots_multipromise_.add_promise(std::move(promise));
-  if (recently_used_bots_loaded_ == 0) {
-    resolve_recent_inline_bots_multipromise_.set_ignore_errors(true);
-    auto lock = resolve_recent_inline_bots_multipromise_.get_promise();
-    if (!G()->use_chat_info_database()) {
-      for (auto &bot_username : bot_usernames) {
-        td_->dialog_manager_->search_public_dialog(bot_username, false,
-                                                   resolve_recent_inline_bots_multipromise_.get_promise());
-      }
-    } else {
-      for (auto &bot_id : bot_ids) {
-        UserId user_id(to_integer<int64>(bot_id));
-        td_->user_manager_->get_user(user_id, 3, resolve_recent_inline_bots_multipromise_.get_promise());
-      }
-    }
-    lock.set_value(Unit());
-    recently_used_bots_loaded_ = 1;
-  }
-  return false;
-}
-
-void InlineQueriesManager::on_new_query(int64 query_id, UserId sender_user_id, Location user_location,
-                                        tl_object_ptr<telegram_api::InlineQueryPeerType> peer_type, const string &query,
-                                        const string &offset) {
-  if (!sender_user_id.is_valid()) {
-    LOG(ERROR) << "Receive new inline query from invalid " << sender_user_id;
-    return;
-  }
-  if (!td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Receive new inline query";
-    return;
-  }
-  auto chat_type = [&]() -> td_api::object_ptr<td_api::ChatType> {
-    if (peer_type == nullptr) {
-      return nullptr;
-    }
-
-    switch (peer_type->get_id()) {
-      case telegram_api::inlineQueryPeerTypeSameBotPM::ID:
-        return td_api::make_object<td_api::chatTypePrivate>(
-            td_->user_manager_->get_user_id_object(sender_user_id, "inlineQueryPeerTypeSameBotPM"));
-      case telegram_api::inlineQueryPeerTypeBotPM::ID:
-      case telegram_api::inlineQueryPeerTypePM::ID:
-        return td_api::make_object<td_api::chatTypePrivate>(0);
-      case telegram_api::inlineQueryPeerTypeChat::ID:
-        return td_api::make_object<td_api::chatTypeBasicGroup>(0);
-      case telegram_api::inlineQueryPeerTypeMegagroup::ID:
-        return td_api::make_object<td_api::chatTypeSupergroup>(0, false);
-      case telegram_api::inlineQueryPeerTypeBroadcast::ID:
-        return td_api::make_object<td_api::chatTypeSupergroup>(0, true);
-      default:
-        UNREACHABLE();
-        return nullptr;
-    }
-  }();
-  send_closure(G()->td(), &Td::send_update,
-               make_tl_object<td_api::updateNewInlineQuery>(
-                   query_id, td_->user_manager_->get_user_id_object(sender_user_id, "updateNewInlineQuery"),
-                   user_location.get_location_object(), std::move(chat_type), query, offset));
-}
-
-void InlineQueriesManager::on_chosen_result(
-    UserId user_id, Location user_location, const string &query, const string &result_id,
-    tl_object_ptr<telegram_api::InputBotInlineMessageID> &&input_bot_inline_message_id) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive chosen inline query result from invalid " << user_id;
-    return;
-  }
-  LOG_IF(ERROR, !td_->user_manager_->have_user(user_id)) << "Receive unknown " << user_id;
-  if (!td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Receive chosen inline query result";
-    return;
-  }
-  send_closure(G()->td(), &Td::send_update,
-               make_tl_object<td_api::updateNewChosenInlineResult>(
-                   td_->user_manager_->get_user_id_object(user_id, "updateNewChosenInlineResult"),
-                   user_location.get_location_object(), query, result_id,
-                   get_inline_message_id(std::move(input_bot_inline_message_id))));
-}
-
-bool InlineQueriesManager::update_bot_usage(UserId bot_user_id) {
-  if (!bot_user_id.is_valid()) {
-    return false;
-  }
-  if (!recently_used_bot_user_ids_.empty() && recently_used_bot_user_ids_[0] == bot_user_id) {
-    return false;
-  }
-  auto r_bot_data = td_->user_manager_->get_bot_data(bot_user_id);
-  if (r_bot_data.is_error()) {
-    return false;
-  }
-  if (r_bot_data.ok().username.empty() || !r_bot_data.ok().is_inline) {
-    return false;
-  }
-
-  add_to_top(recently_used_bot_user_ids_, MAX_RECENT_INLINE_BOTS, bot_user_id);
-
-  return true;
-}
-
-void InlineQueriesManager::remove_recent_inline_bot(UserId bot_user_id, Promise<Unit> &&promise) {
-  if (td::remove(recently_used_bot_user_ids_, bot_user_id)) {
-    save_recently_used_bots();
-  }
-  promise.set_value(Unit());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InlineQueriesManager.h b/third-party/td/td/td/telegram/InlineQueriesManager.h
deleted file mode 100644
index a8734d9428..0000000000
--- a/third-party/td/td/td/telegram/InlineQueriesManager.h
+++ /dev/null
@@ -1,192 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiPromise.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class Game;
-class Td;
-class WebAppOpenParameters;
-
-class InlineQueriesManager final : public Actor {
- public:
-  InlineQueriesManager(Td *td, ActorShared<> parent);
-
-  void after_get_difference();
-
-  void answer_inline_query(int64 inline_query_id, bool is_personal,
-                           td_api::object_ptr<td_api::inlineQueryResultsButton> &&button,
-                           vector<td_api::object_ptr<td_api::InputInlineQueryResult>> &&input_results, int32 cache_time,
-                           const string &next_offset, Promise<Unit> &&promise) const;
-
-  void save_prepared_inline_message(UserId user_id, td_api::object_ptr<td_api::InputInlineQueryResult> &&input_result,
-                                    td_api::object_ptr<td_api::targetChatTypes> &&chat_types,
-                                    Promise<td_api::object_ptr<td_api::preparedInlineMessageId>> &&promise);
-
-  void get_prepared_inline_message(UserId bot_user_id, const string &prepared_message_id,
-                                   Promise<td_api::object_ptr<td_api::preparedInlineMessage>> &&promise);
-
-  void get_simple_web_view_url(UserId bot_user_id, string &&url, const WebAppOpenParameters &parameters,
-                               Promise<string> &&promise);
-
-  void send_web_view_data(UserId bot_user_id, string &&button_text, string &&data, Promise<Unit> &&promise) const;
-
-  void answer_web_view_query(const string &web_view_query_id,
-                             td_api::object_ptr<td_api::InputInlineQueryResult> &&input_result,
-                             Promise<td_api::object_ptr<td_api::sentWebAppMessage>> &&promise) const;
-
-  void get_weather(Location location, Promise<td_api::object_ptr<td_api::currentWeather>> &&promise);
-
-  void send_inline_query(UserId bot_user_id, DialogId dialog_id, Location user_location, const string &query,
-                         const string &offset, Promise<td_api::object_ptr<td_api::inlineQueryResults>> &&promise);
-
-  vector<UserId> get_recent_inline_bots(Promise<Unit> &&promise);
-
-  void remove_recent_inline_bot(UserId bot_user_id, Promise<Unit> &&promise);
-
-  const InlineMessageContent *get_inline_message_content(int64 query_id, const string &result_id);
-
-  UserId get_inline_bot_user_id(int64 query_id) const;
-
-  void on_get_inline_query_results(DialogId dialog_id, UserId bot_user_id, uint64 query_hash,
-                                   tl_object_ptr<telegram_api::messages_botResults> &&results,
-                                   Promise<td_api::object_ptr<td_api::inlineQueryResults>> promise);
-
-  void on_get_prepared_inline_message(
-      UserId bot_user_id, uint64 query_hash,
-      telegram_api::object_ptr<telegram_api::messages_preparedInlineMessage> &&prepared_message,
-      Promise<td_api::object_ptr<td_api::preparedInlineMessage>> promise);
-
-  void on_new_query(int64 query_id, UserId sender_user_id, Location user_location,
-                    tl_object_ptr<telegram_api::InlineQueryPeerType> peer_type, const string &query,
-                    const string &offset);
-
-  void on_chosen_result(UserId user_id, Location user_location, const string &query, const string &result_id,
-                        tl_object_ptr<telegram_api::InputBotInlineMessageID> &&input_bot_inline_message_id);
-
-  static string get_inline_message_id(
-      tl_object_ptr<telegram_api::InputBotInlineMessageID> &&input_bot_inline_message_id);
-
- private:
-  static constexpr size_t MAX_RECENT_INLINE_BOTS = 20;  // some reasonable value
-  static constexpr int32 INLINE_QUERY_DELAY_MS = 400;   // server side limit
-
-  Result<tl_object_ptr<telegram_api::InputBotInlineResult>> get_input_bot_inline_result(
-      td_api::object_ptr<td_api::InputInlineQueryResult> &&result, bool *is_gallery, bool *force_vertical) const;
-
-  Result<tl_object_ptr<telegram_api::InputBotInlineMessage>> get_inline_message(
-      tl_object_ptr<td_api::InputMessageContent> &&input_message_content,
-      tl_object_ptr<td_api::ReplyMarkup> &&reply_markup_ptr,
-      int32 allowed_media_content_id) const TD_WARN_UNUSED_RESULT;
-
-  bool register_inline_message_content(int64 query_id, const string &result_id, FileId file_id,
-                                       tl_object_ptr<telegram_api::BotInlineMessage> &&inline_message,
-                                       int32 allowed_media_content_id, bool is_secret_chat, Photo *photo = nullptr,
-                                       Game *game = nullptr);
-
-  tl_object_ptr<td_api::thumbnail> register_thumbnail(
-      tl_object_ptr<telegram_api::WebDocument> &&web_document_ptr) const;
-
-  static string get_web_document_url(const tl_object_ptr<telegram_api::WebDocument> &web_document_ptr);
-
-  static string get_web_document_content_type(const tl_object_ptr<telegram_api::WebDocument> &web_document_ptr);
-
-  td_api::object_ptr<td_api::InlineQueryResult> get_inline_query_result_object(
-      int64 query_id, DialogId dialog_id, telegram_api::object_ptr<telegram_api::BotInlineResult> result_ptr);
-
-  bool update_bot_usage(UserId bot_user_id);
-
-  void save_recently_used_bots();
-
-  bool load_recently_used_bots(Promise<Unit> &promise);
-
-  void do_get_weather(DialogId dialog_id, Location location,
-                      Promise<td_api::object_ptr<td_api::currentWeather>> &&promise);
-
-  void on_get_weather(td_api::object_ptr<td_api::inlineQueryResults> results,
-                      Promise<td_api::object_ptr<td_api::currentWeather>> &&promise);
-
-  td_api::object_ptr<td_api::inlineQueryResults> get_inline_query_results_object(uint64 query_hash);
-
-  td_api::object_ptr<td_api::preparedInlineMessage> get_prepared_inline_message_object(uint64 query_hash);
-
-  static void on_drop_inline_query_result_timeout_callback(void *inline_queries_manager_ptr, int64 query_hash);
-
-  void on_drop_inline_query_result_timeout(int64 query_hash);
-
-  static void on_drop_inline_query_message_timeout_callback(void *inline_queries_manager_ptr, int64 query_id);
-
-  void on_drop_inline_query_message_timeout(int64 query_id);
-
-  void loop() final;
-
-  void tear_down() final;
-
-  int32 recently_used_bots_loaded_ = 0;  // 0 - not loaded, 1 - load request was sent, 2 - loaded
-  MultiPromiseActor resolve_recent_inline_bots_multipromise_{"ResolveRecentInlineBotsMultiPromiseActor"};
-
-  vector<UserId> recently_used_bot_user_ids_;
-
-  struct PendingInlineQuery {
-    uint64 query_hash;
-    UserId bot_user_id;
-    DialogId dialog_id;
-    tl_object_ptr<telegram_api::InputPeer> input_peer;
-    Location user_location;
-    string query;
-    string offset;
-    Promise<td_api::object_ptr<td_api::inlineQueryResults>> promise;
-  };
-
-  double next_inline_query_time_ = 0.0;
-  unique_ptr<PendingInlineQuery> pending_inline_query_;
-  NetQueryRef sent_query_;
-
-  struct InlineQueryResult {
-    td_api::object_ptr<td_api::inlineQueryResults> results;
-    double cache_expire_time;
-    int32 pending_request_count;
-    int64 target_dialog_types_mask;
-    bool is_inline_query;
-  };
-
-  MultiTimeout drop_inline_query_result_timeout_{"DropInlineQueryResultTimeout"};
-  MultiTimeout drop_inline_query_message_timeout_{"DropInlineQueryMessageTimeout"};
-  FlatHashMap<uint64, InlineQueryResult> inline_query_results_;  // query_hash -> result
-
-  FlatHashMap<int64, FlatHashMap<string, InlineMessageContent>>
-      inline_message_contents_;  // query_id -> [result_id -> inline_message_content]
-
-  FlatHashMap<int64, UserId> query_id_to_bot_user_id_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputBusinessChatLink.cpp b/third-party/td/td/td/telegram/InputBusinessChatLink.cpp
deleted file mode 100644
index 9173482038..0000000000
--- a/third-party/td/td/td/telegram/InputBusinessChatLink.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/InputBusinessChatLink.h"
-
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-InputBusinessChatLink::InputBusinessChatLink(const Td *td, td_api::object_ptr<td_api::inputBusinessChatLink> &&link) {
-  if (link == nullptr) {
-    return;
-  }
-  auto r_text =
-      get_formatted_text(td, td->dialog_manager_->get_my_dialog_id(), std::move(link->text_), false, true, true, false);
-  if (r_text.is_error()) {
-    LOG(INFO) << "Ignore draft text: " << r_text.error();
-  } else {
-    text_ = r_text.move_as_ok();
-  }
-  if (clean_input_string(link->title_)) {
-    title_ = std::move(link->title_);
-  }
-}
-
-telegram_api::object_ptr<telegram_api::inputBusinessChatLink> InputBusinessChatLink::get_input_business_chat_link(
-    const UserManager *user_manager) const {
-  int32 flags = 0;
-  auto entities = get_input_message_entities(user_manager, &text_, "get_input_business_chat_link");
-  if (!entities.empty()) {
-    flags |= telegram_api::inputBusinessChatLink::ENTITIES_MASK;
-  }
-  if (!title_.empty()) {
-    flags |= telegram_api::inputBusinessChatLink::TITLE_MASK;
-  }
-  return telegram_api::make_object<telegram_api::inputBusinessChatLink>(flags, text_.text, std::move(entities), title_);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const InputBusinessChatLink &link) {
-  return string_builder << '[' << link.title_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputBusinessChatLink.h b/third-party/td/td/td/telegram/InputBusinessChatLink.h
deleted file mode 100644
index 8f6846a103..0000000000
--- a/third-party/td/td/td/telegram/InputBusinessChatLink.h
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-class UserManager;
-
-class InputBusinessChatLink {
-  FormattedText text_;
-  string title_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const InputBusinessChatLink &link);
-
- public:
-  InputBusinessChatLink(const Td *td, td_api::object_ptr<td_api::inputBusinessChatLink> &&link);
-
-  telegram_api::object_ptr<telegram_api::inputBusinessChatLink> get_input_business_chat_link(
-      const UserManager *user_manager) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const InputBusinessChatLink &link);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputDialogId.cpp b/third-party/td/td/td/telegram/InputDialogId.cpp
deleted file mode 100644
index d4ae15bd5b..0000000000
--- a/third-party/td/td/td/telegram/InputDialogId.cpp
+++ /dev/null
@@ -1,157 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/InputDialogId.h"
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-InputDialogId::InputDialogId(const tl_object_ptr<telegram_api::InputPeer> &input_peer) {
-  CHECK(input_peer != nullptr);
-  switch (input_peer->get_id()) {
-    case telegram_api::inputPeerUser::ID: {
-      auto input_user = static_cast<const telegram_api::inputPeerUser *>(input_peer.get());
-      UserId user_id(input_user->user_id_);
-      if (user_id.is_valid()) {
-        dialog_id = DialogId(user_id);
-        access_hash = input_user->access_hash_;
-        return;
-      }
-      break;
-    }
-    case telegram_api::inputPeerChat::ID: {
-      auto input_chat = static_cast<const telegram_api::inputPeerChat *>(input_peer.get());
-      ChatId chat_id(input_chat->chat_id_);
-      if (chat_id.is_valid()) {
-        dialog_id = DialogId(chat_id);
-        return;
-      }
-      break;
-    }
-    case telegram_api::inputPeerChannel::ID: {
-      auto input_channel = static_cast<const telegram_api::inputPeerChannel *>(input_peer.get());
-      ChannelId channel_id(input_channel->channel_id_);
-      if (channel_id.is_valid()) {
-        dialog_id = DialogId(channel_id);
-        access_hash = input_channel->access_hash_;
-        return;
-      }
-      break;
-    }
-    default:
-      break;
-  }
-  LOG(ERROR) << "Receive " << to_string(input_peer);
-}
-
-vector<InputDialogId> InputDialogId::get_input_dialog_ids(
-    const vector<tl_object_ptr<telegram_api::InputPeer>> &input_peers,
-    FlatHashSet<DialogId, DialogIdHash> *added_dialog_ids) {
-  FlatHashSet<DialogId, DialogIdHash> temp_added_dialog_ids;
-  if (added_dialog_ids == nullptr) {
-    added_dialog_ids = &temp_added_dialog_ids;
-  }
-  vector<InputDialogId> result;
-  result.reserve(input_peers.size());
-  for (auto &input_peer : input_peers) {
-    InputDialogId input_dialog_id(input_peer);
-    if (input_dialog_id.is_valid() && added_dialog_ids->insert(input_dialog_id.get_dialog_id()).second) {
-      result.push_back(input_dialog_id);
-    }
-  }
-  return result;
-}
-
-vector<DialogId> InputDialogId::get_dialog_ids(const vector<InputDialogId> &input_dialog_ids) {
-  return transform(input_dialog_ids, [](InputDialogId input_dialog_id) { return input_dialog_id.get_dialog_id(); });
-}
-
-vector<telegram_api::object_ptr<telegram_api::InputDialogPeer>> InputDialogId::get_input_dialog_peers(
-    const vector<InputDialogId> &input_dialog_ids) {
-  vector<telegram_api::object_ptr<telegram_api::InputDialogPeer>> result;
-  result.reserve(input_dialog_ids.size());
-  for (const auto &input_dialog_id : input_dialog_ids) {
-    auto input_peer = input_dialog_id.get_input_peer();
-    if (input_peer != nullptr) {
-      result.push_back(telegram_api::make_object<telegram_api::inputDialogPeer>(std::move(input_peer)));
-    }
-  }
-  return result;
-}
-
-vector<telegram_api::object_ptr<telegram_api::InputPeer>> InputDialogId::get_input_peers(
-    const vector<InputDialogId> &input_dialog_ids) {
-  vector<telegram_api::object_ptr<telegram_api::InputPeer>> result;
-  result.reserve(input_dialog_ids.size());
-  for (const auto &input_dialog_id : input_dialog_ids) {
-    auto input_peer = input_dialog_id.get_input_peer();
-    CHECK(input_peer != nullptr);
-    result.push_back(std::move(input_peer));
-  }
-  return result;
-}
-
-tl_object_ptr<telegram_api::InputPeer> InputDialogId::get_input_peer() const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return make_tl_object<telegram_api::inputPeerUser>(dialog_id.get_user_id().get(), access_hash);
-    case DialogType::Chat:
-      return make_tl_object<telegram_api::inputPeerChat>(dialog_id.get_chat_id().get());
-    case DialogType::Channel:
-      return make_tl_object<telegram_api::inputPeerChannel>(dialog_id.get_channel_id().get(), access_hash);
-    case DialogType::SecretChat:
-    case DialogType::None:
-      return nullptr;
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-bool InputDialogId::are_equivalent(const vector<InputDialogId> &lhs, const vector<InputDialogId> &rhs) {
-  auto lhs_it = lhs.begin();
-  auto rhs_it = rhs.begin();
-  while (lhs_it != lhs.end() || rhs_it != rhs.end()) {
-    while (lhs_it != lhs.end() && lhs_it->get_dialog_id().get_type() == DialogType::SecretChat) {
-      ++lhs_it;
-    }
-    while (rhs_it != rhs.end() && rhs_it->get_dialog_id().get_type() == DialogType::SecretChat) {
-      ++rhs_it;
-    }
-    if (lhs_it == lhs.end() || rhs_it == rhs.end()) {
-      break;
-    }
-    if (lhs_it->get_dialog_id() != rhs_it->get_dialog_id()) {
-      return false;
-    }
-    ++lhs_it;
-    ++rhs_it;
-  }
-  return lhs_it == lhs.end() && rhs_it == rhs.end();
-}
-
-bool InputDialogId::contains(const vector<InputDialogId> &input_dialog_ids, DialogId dialog_id) {
-  for (auto &input_dialog_id : input_dialog_ids) {
-    if (input_dialog_id.get_dialog_id() == dialog_id) {
-      return true;
-    }
-  }
-  return false;
-}
-
-bool InputDialogId::remove(vector<InputDialogId> &input_dialog_ids, DialogId dialog_id) {
-  return td::remove_if(input_dialog_ids, [dialog_id](InputDialogId input_dialog_id) {
-    return input_dialog_id.get_dialog_id() == dialog_id;
-  });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputDialogId.h b/third-party/td/td/td/telegram/InputDialogId.h
deleted file mode 100644
index cc8194fe48..0000000000
--- a/third-party/td/td/td/telegram/InputDialogId.h
+++ /dev/null
@@ -1,82 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class InputDialogId {
-  DialogId dialog_id;
-  int64 access_hash = 0;
-
- public:
-  InputDialogId() = default;
-
-  explicit constexpr InputDialogId(DialogId dialog_id) : dialog_id(dialog_id) {
-  }
-
-  explicit InputDialogId(const tl_object_ptr<telegram_api::InputPeer> &input_peer);
-
-  static vector<InputDialogId> get_input_dialog_ids(const vector<tl_object_ptr<telegram_api::InputPeer>> &input_peers,
-                                                    FlatHashSet<DialogId, DialogIdHash> *added_dialog_ids = nullptr);
-
-  static vector<DialogId> get_dialog_ids(const vector<InputDialogId> &input_dialog_ids);
-
-  static vector<telegram_api::object_ptr<telegram_api::InputDialogPeer>> get_input_dialog_peers(
-      const vector<InputDialogId> &input_dialog_ids);
-
-  static vector<telegram_api::object_ptr<telegram_api::InputPeer>> get_input_peers(
-      const vector<InputDialogId> &input_dialog_ids);
-
-  static bool are_equivalent(const vector<InputDialogId> &lhs, const vector<InputDialogId> &rhs);
-
-  static bool contains(const vector<InputDialogId> &input_dialog_ids, DialogId dialog_id);
-
-  static bool remove(vector<InputDialogId> &input_dialog_ids, DialogId dialog_id);
-
-  bool operator==(const InputDialogId &other) const {
-    return dialog_id == other.dialog_id && access_hash == other.access_hash;
-  }
-
-  bool operator!=(const InputDialogId &other) const {
-    return !(*this == other);
-  }
-
-  bool is_valid() const {
-    return dialog_id.is_valid();
-  }
-
-  DialogId get_dialog_id() const {
-    return dialog_id;
-  }
-
-  tl_object_ptr<telegram_api::InputPeer> get_input_peer() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    dialog_id.store(storer);
-    storer.store_long(access_hash);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    dialog_id.parse(parser);
-    access_hash = parser.fetch_long();
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, InputDialogId input_dialog_id) {
-  return string_builder << "input " << input_dialog_id.get_dialog_id();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputGroupCallId.cpp b/third-party/td/td/td/telegram/InputGroupCallId.cpp
deleted file mode 100644
index 37429bafc6..0000000000
--- a/third-party/td/td/td/telegram/InputGroupCallId.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/InputGroupCallId.h"
-
-namespace td {
-
-InputGroupCallId::InputGroupCallId(const tl_object_ptr<telegram_api::inputGroupCall> &input_group_call)
-    : group_call_id(input_group_call->id_), access_hash(input_group_call->access_hash_) {
-}
-
-tl_object_ptr<telegram_api::inputGroupCall> InputGroupCallId::get_input_group_call() const {
-  return make_tl_object<telegram_api::inputGroupCall>(group_call_id, access_hash);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, InputGroupCallId input_group_call_id) {
-  return string_builder << "input group call " << input_group_call_id.group_call_id;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputGroupCallId.h b/third-party/td/td/td/telegram/InputGroupCallId.h
deleted file mode 100644
index a1be1617c0..0000000000
--- a/third-party/td/td/td/telegram/InputGroupCallId.h
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class InputGroupCallId {
-  int64 group_call_id = 0;
-  int64 access_hash = 0;
-
- public:
-  InputGroupCallId() = default;
-
-  explicit InputGroupCallId(const tl_object_ptr<telegram_api::inputGroupCall> &input_group_call);
-
-  InputGroupCallId(int64 group_call_id, int64 access_hash) : group_call_id(group_call_id), access_hash(access_hash) {
-  }
-
-  bool operator==(const InputGroupCallId &other) const {
-    return group_call_id == other.group_call_id;
-  }
-
-  bool operator!=(const InputGroupCallId &other) const {
-    return !(*this == other);
-  }
-
-  bool is_identical(const InputGroupCallId &other) const {
-    return group_call_id == other.group_call_id && access_hash == other.access_hash;
-  }
-
-  bool is_valid() const {
-    return group_call_id != 0;
-  }
-
-  uint32 get_hash() const {
-    return Hash<int64>()(group_call_id);
-  }
-
-  tl_object_ptr<telegram_api::inputGroupCall> get_input_group_call() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(group_call_id);
-    storer.store_long(access_hash);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    group_call_id = parser.fetch_long();
-    access_hash = parser.fetch_long();
-  }
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, InputGroupCallId input_group_call_id);
-};
-
-struct InputGroupCallIdHash {
-  uint32 operator()(InputGroupCallId input_group_call_id) const {
-    return input_group_call_id.get_hash();
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputInvoice.cpp b/third-party/td/td/td/telegram/InputInvoice.cpp
deleted file mode 100644
index 10f2000273..0000000000
--- a/third-party/td/td/td/telegram/InputInvoice.cpp
+++ /dev/null
@@ -1,429 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/InputInvoice.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/PhotoSizeType.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/MimeType.h"
-#include "td/utils/PathView.h"
-
-namespace td {
-
-bool operator==(const InputInvoice &lhs, const InputInvoice &rhs) {
-  auto are_invoice_equal = [](const InputInvoice::Invoice &lhs, const InputInvoice::Invoice &rhs) {
-    return lhs.is_test_ == rhs.is_test_ && lhs.need_name_ == rhs.need_name_ &&
-           lhs.need_phone_number_ == rhs.need_phone_number_ && lhs.need_email_address_ == rhs.need_email_address_ &&
-           lhs.need_shipping_address_ == rhs.need_shipping_address_ &&
-           lhs.send_phone_number_to_provider_ == rhs.send_phone_number_to_provider_ &&
-           lhs.send_email_address_to_provider_ == rhs.send_email_address_to_provider_ &&
-           lhs.is_flexible_ == rhs.is_flexible_ && lhs.currency_ == rhs.currency_ &&
-           lhs.price_parts_ == rhs.price_parts_ && lhs.subscription_period_ == rhs.subscription_period_ &&
-           lhs.max_tip_amount_ == rhs.max_tip_amount_ && lhs.suggested_tip_amounts_ == rhs.suggested_tip_amounts_ &&
-           lhs.recurring_payment_terms_of_service_url_ == rhs.recurring_payment_terms_of_service_url_ &&
-           lhs.terms_of_service_url_ == rhs.terms_of_service_url_;
-  };
-
-  return lhs.title_ == rhs.title_ && lhs.description_ == rhs.description_ && lhs.photo_ == rhs.photo_ &&
-         lhs.start_parameter_ == rhs.start_parameter_ && are_invoice_equal(lhs.invoice_, rhs.invoice_) &&
-         lhs.payload_ == rhs.payload_ && lhs.provider_token_ == rhs.provider_token_ &&
-         lhs.provider_data_ == rhs.provider_data_ && lhs.extended_media_ == rhs.extended_media_ &&
-         lhs.extended_media_caption_ == rhs.extended_media_caption_ && lhs.total_amount_ == rhs.total_amount_ &&
-         lhs.receipt_message_id_ == rhs.receipt_message_id_;
-}
-
-bool operator!=(const InputInvoice &lhs, const InputInvoice &rhs) {
-  return !(lhs == rhs);
-}
-
-InputInvoice::InputInvoice(tl_object_ptr<telegram_api::messageMediaInvoice> &&message_invoice, Td *td,
-                           DialogId owner_dialog_id, FormattedText &&message) {
-  title_ = std::move(message_invoice->title_);
-  description_ = std::move(message_invoice->description_);
-  photo_ = get_web_document_photo(td->file_manager_.get(), std::move(message_invoice->photo_), owner_dialog_id);
-  start_parameter_ = std::move(message_invoice->start_param_);
-  invoice_.currency_ = std::move(message_invoice->currency_);
-  invoice_.is_test_ = message_invoice->test_;
-  invoice_.need_shipping_address_ = message_invoice->shipping_address_requested_;
-  // payload_ = string();
-  // provider_token_ = string();
-  // provider_data_ = string();
-  extended_media_ = MessageExtendedMedia(td, std::move(message_invoice->extended_media_), owner_dialog_id);
-  if (!extended_media_.is_empty()) {
-    extended_media_caption_ = std::move(message);
-  }
-  if (message_invoice->total_amount_ <= 0 || !check_currency_amount(message_invoice->total_amount_)) {
-    LOG(ERROR) << "Receive invalid total amount " << message_invoice->total_amount_;
-    message_invoice->total_amount_ = 0;
-  }
-  total_amount_ = message_invoice->total_amount_;
-  if ((message_invoice->flags_ & telegram_api::messageMediaInvoice::RECEIPT_MSG_ID_MASK) != 0) {
-    receipt_message_id_ = MessageId(ServerMessageId(message_invoice->receipt_msg_id_));
-    if (!receipt_message_id_.is_valid()) {
-      LOG(ERROR) << "Receive as receipt message " << receipt_message_id_ << " in " << owner_dialog_id;
-      receipt_message_id_ = MessageId();
-    }
-  }
-}
-
-InputInvoice::InputInvoice(tl_object_ptr<telegram_api::botInlineMessageMediaInvoice> &&message_invoice, Td *td,
-                           DialogId owner_dialog_id) {
-  title_ = std::move(message_invoice->title_);
-  description_ = std::move(message_invoice->description_);
-  photo_ = get_web_document_photo(td->file_manager_.get(), std::move(message_invoice->photo_), owner_dialog_id);
-  // start_parameter_ = string();
-  invoice_.currency_ = std::move(message_invoice->currency_);
-  invoice_.is_test_ = message_invoice->test_;
-  invoice_.need_shipping_address_ = message_invoice->shipping_address_requested_;
-  // payload_ = string();
-  // provider_token_ = string();
-  // provider_data_ = string();
-  // extended_media_ = MessageExtendedMedia();
-  // extended_media_caption_ = FormattedText();
-  if (message_invoice->total_amount_ <= 0 || !check_currency_amount(message_invoice->total_amount_)) {
-    LOG(ERROR) << "Receive invalid total amount " << message_invoice->total_amount_;
-    message_invoice->total_amount_ = 0;
-  }
-  total_amount_ = message_invoice->total_amount_;
-  // receipt_message_id_ = MessageId();
-}
-
-Result<InputInvoice> InputInvoice::process_input_message_invoice(
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content, Td *td, DialogId owner_dialog_id) {
-  CHECK(input_message_content != nullptr);
-  CHECK(input_message_content->get_id() == td_api::inputMessageInvoice::ID);
-  auto input_invoice = move_tl_object_as<td_api::inputMessageInvoice>(input_message_content);
-  if (input_invoice->invoice_ == nullptr) {
-    return Status::Error(400, "Invoice must be non-empty");
-  }
-
-  if (!clean_input_string(input_invoice->title_)) {
-    return Status::Error(400, "Invoice title must be encoded in UTF-8");
-  }
-  if (!clean_input_string(input_invoice->description_)) {
-    return Status::Error(400, "Invoice description must be encoded in UTF-8");
-  }
-  if (!clean_input_string(input_invoice->photo_url_)) {
-    return Status::Error(400, "Invoice photo URL must be encoded in UTF-8");
-  }
-  if (!clean_input_string(input_invoice->start_parameter_)) {
-    return Status::Error(400, "Invoice bot start parameter must be encoded in UTF-8");
-  }
-  if (!clean_input_string(input_invoice->provider_token_)) {
-    return Status::Error(400, "Invoice provider token must be encoded in UTF-8");
-  }
-  if (!clean_input_string(input_invoice->provider_data_)) {
-    return Status::Error(400, "Invoice provider data must be encoded in UTF-8");
-  }
-  if (!clean_input_string(input_invoice->invoice_->currency_)) {
-    return Status::Error(400, "Invoice currency must be encoded in UTF-8");
-  }
-  if (!clean_input_string(input_invoice->invoice_->recurring_payment_terms_of_service_url_)) {
-    return Status::Error(400, "Invoice terms of service URL must be encoded in UTF-8");
-  }
-  if (!clean_input_string(input_invoice->invoice_->terms_of_service_url_)) {
-    return Status::Error(400, "Invoice terms of service URL must be encoded in UTF-8");
-  }
-
-  InputInvoice result;
-  result.title_ = std::move(input_invoice->title_);
-  result.description_ = std::move(input_invoice->description_);
-
-  auto r_http_url = parse_url(input_invoice->photo_url_);
-  if (r_http_url.is_error()) {
-    if (!input_invoice->photo_url_.empty()) {
-      LOG(INFO) << "Can't register URL " << input_invoice->photo_url_;
-    }
-  } else {
-    auto url = r_http_url.ok().get_url();
-    auto r_invoice_file_id = td->file_manager_->from_persistent_id(url, FileType::Temp);
-    if (r_invoice_file_id.is_error()) {
-      LOG(INFO) << "Can't register URL " << url;
-    } else {
-      auto invoice_file_id = r_invoice_file_id.move_as_ok();
-
-      PhotoSize s;
-      s.type = PhotoSizeType('n');
-      s.dimensions = get_dimensions(input_invoice->photo_width_, input_invoice->photo_height_, nullptr);
-      s.size = input_invoice->photo_size_;  // TODO use invoice_file_id size
-      s.file_id = invoice_file_id;
-
-      result.photo_.id = 0;
-      result.photo_.photos.push_back(s);
-    }
-  }
-  result.start_parameter_ = std::move(input_invoice->start_parameter_);
-
-  result.invoice_.currency_ = std::move(input_invoice->invoice_->currency_);
-  result.invoice_.price_parts_.reserve(input_invoice->invoice_->price_parts_.size());
-  int64 total_amount = 0;
-  for (auto &price : input_invoice->invoice_->price_parts_) {
-    if (!clean_input_string(price->label_)) {
-      return Status::Error(400, "Invoice price label must be encoded in UTF-8");
-    }
-    if (!check_currency_amount(price->amount_)) {
-      return Status::Error(400, "Too big amount of the currency specified");
-    }
-    result.invoice_.price_parts_.emplace_back(std::move(price->label_), price->amount_);
-    total_amount += price->amount_;
-  }
-  if (total_amount <= 0) {
-    return Status::Error(400, "Total price must be positive");
-  }
-  if (!check_currency_amount(total_amount)) {
-    return Status::Error(400, "Total price is too big");
-  }
-  result.total_amount_ = total_amount;
-  result.invoice_.subscription_period_ = max(input_invoice->invoice_->subscription_period_, 0);
-
-  if (input_invoice->invoice_->max_tip_amount_ < 0 ||
-      !check_currency_amount(input_invoice->invoice_->max_tip_amount_)) {
-    return Status::Error(400, "Invalid max_tip_amount of the currency specified");
-  }
-  for (auto tip_amount : input_invoice->invoice_->suggested_tip_amounts_) {
-    if (tip_amount <= 0) {
-      return Status::Error(400, "Suggested tip amount must be positive");
-    }
-    if (tip_amount > input_invoice->invoice_->max_tip_amount_) {
-      return Status::Error(400, "Suggested tip amount can't be bigger than max_tip_amount");
-    }
-  }
-  if (input_invoice->invoice_->suggested_tip_amounts_.size() > 4) {
-    return Status::Error(400, "There can be at most 4 suggested tip amounts");
-  }
-
-  result.invoice_.max_tip_amount_ = input_invoice->invoice_->max_tip_amount_;
-  result.invoice_.suggested_tip_amounts_ = std::move(input_invoice->invoice_->suggested_tip_amounts_);
-  result.invoice_.recurring_payment_terms_of_service_url_ =
-      std::move(input_invoice->invoice_->recurring_payment_terms_of_service_url_);
-  result.invoice_.terms_of_service_url_ = std::move(input_invoice->invoice_->terms_of_service_url_);
-  result.invoice_.is_test_ = input_invoice->invoice_->is_test_;
-  result.invoice_.need_name_ = input_invoice->invoice_->need_name_;
-  result.invoice_.need_phone_number_ = input_invoice->invoice_->need_phone_number_;
-  result.invoice_.need_email_address_ = input_invoice->invoice_->need_email_address_;
-  result.invoice_.need_shipping_address_ = input_invoice->invoice_->need_shipping_address_;
-  result.invoice_.send_phone_number_to_provider_ = input_invoice->invoice_->send_phone_number_to_provider_;
-  result.invoice_.send_email_address_to_provider_ = input_invoice->invoice_->send_email_address_to_provider_;
-  result.invoice_.is_flexible_ = input_invoice->invoice_->is_flexible_;
-  if (result.invoice_.send_phone_number_to_provider_) {
-    result.invoice_.need_phone_number_ = true;
-  }
-  if (result.invoice_.send_email_address_to_provider_) {
-    result.invoice_.need_email_address_ = true;
-  }
-  if (result.invoice_.is_flexible_) {
-    result.invoice_.need_shipping_address_ = true;
-  }
-
-  result.payload_ = std::move(input_invoice->payload_);
-  result.provider_token_ = std::move(input_invoice->provider_token_);
-  result.provider_data_ = std::move(input_invoice->provider_data_);
-
-  TRY_RESULT(extended_media, MessageExtendedMedia::get_message_extended_media(td, std::move(input_invoice->paid_media_),
-                                                                              owner_dialog_id));
-  result.extended_media_ = std::move(extended_media);
-  if (!result.extended_media_.is_empty()) {
-    bool is_bot = td->auth_manager_->is_bot();
-    TRY_RESULT(extended_media_caption,
-               get_formatted_text(td, owner_dialog_id, std::move(input_invoice->paid_media_caption_), is_bot, true,
-                                  false, false));
-    result.extended_media_caption_ = std::move(extended_media_caption);
-  }
-
-  return result;
-}
-
-td_api::object_ptr<td_api::messageInvoice> InputInvoice::get_message_invoice_object(Td *td, bool is_server,
-                                                                                    bool skip_bot_commands,
-                                                                                    int32 max_media_timestamp) const {
-  auto extended_media_object = extended_media_.get_paid_media_object(td);
-  auto extended_media_caption_object =
-      extended_media_object == nullptr
-          ? nullptr
-          : get_formatted_text_object(is_server ? td->user_manager_.get() : nullptr, extended_media_caption_,
-                                      skip_bot_commands, max_media_timestamp);
-  return td_api::make_object<td_api::messageInvoice>(
-      get_product_info_object(td, title_, description_, photo_), invoice_.currency_, total_amount_, start_parameter_,
-      invoice_.is_test_, invoice_.need_shipping_address_, receipt_message_id_.get(), std::move(extended_media_object),
-      std::move(extended_media_caption_object));
-}
-
-tl_object_ptr<telegram_api::invoice> InputInvoice::Invoice::get_input_invoice() const {
-  int32 flags = 0;
-  if (max_tip_amount_ != 0) {
-    flags |= telegram_api::invoice::MAX_TIP_AMOUNT_MASK;
-  }
-  if (subscription_period_ != 0) {
-    flags |= telegram_api::invoice::SUBSCRIPTION_PERIOD_MASK;
-  }
-  bool is_recurring = false;
-  string terms_of_service_url;
-  if (!recurring_payment_terms_of_service_url_.empty()) {
-    is_recurring = true;
-    flags |= telegram_api::invoice::TERMS_URL_MASK;
-    terms_of_service_url = recurring_payment_terms_of_service_url_;
-  } else if (!terms_of_service_url_.empty()) {
-    flags |= telegram_api::invoice::TERMS_URL_MASK;
-    terms_of_service_url = terms_of_service_url_;
-  }
-
-  auto prices = transform(price_parts_, [](const LabeledPricePart &price) {
-    return telegram_api::make_object<telegram_api::labeledPrice>(price.label, price.amount);
-  });
-  return telegram_api::make_object<telegram_api::invoice>(
-      flags, is_test_, need_name_, need_phone_number_, need_email_address_, need_shipping_address_, is_flexible_,
-      send_phone_number_to_provider_, send_email_address_to_provider_, is_recurring, currency_, std::move(prices),
-      max_tip_amount_, vector<int64>(suggested_tip_amounts_), terms_of_service_url, subscription_period_);
-}
-
-static telegram_api::object_ptr<telegram_api::inputWebDocument> get_input_web_document(const FileManager *file_manager,
-                                                                                       const Photo &photo) {
-  if (photo.is_empty()) {
-    return nullptr;
-  }
-
-  CHECK(photo.photos.size() == 1);
-  const PhotoSize &size = photo.photos[0];
-  CHECK(size.file_id.is_valid());
-
-  vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-  if (size.dimensions.width != 0 && size.dimensions.height != 0) {
-    attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeImageSize>(size.dimensions.width,
-                                                                                             size.dimensions.height));
-  }
-
-  auto file_view = file_manager->get_file_view(size.file_id);
-  const auto *url = file_view.get_url();
-  CHECK(url != nullptr);
-
-  auto file_name = get_url_file_name(*url);
-  return telegram_api::make_object<telegram_api::inputWebDocument>(
-      *url, size.size, MimeType::from_extension(PathView(file_name).extension(), "image/jpeg"), std::move(attributes));
-}
-
-tl_object_ptr<telegram_api::inputMediaInvoice> InputInvoice::get_input_media_invoice(
-    Td *td, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) const {
-  int32 flags = 0;
-  if (!start_parameter_.empty()) {
-    flags |= telegram_api::inputMediaInvoice::START_PARAM_MASK;
-  }
-  auto input_web_document = get_input_web_document(td->file_manager_.get(), photo_);
-  if (input_web_document != nullptr) {
-    flags |= telegram_api::inputMediaInvoice::PHOTO_MASK;
-  }
-  telegram_api::object_ptr<telegram_api::InputMedia> extended_media;
-  if (!extended_media_.is_empty()) {
-    flags |= telegram_api::inputMediaInvoice::EXTENDED_MEDIA_MASK;
-    extended_media = extended_media_.get_input_media(td, std::move(input_file), std::move(input_thumbnail));
-    if (extended_media == nullptr) {
-      return nullptr;
-    }
-  }
-  if (!provider_token_.empty()) {
-    flags |= telegram_api::inputMediaInvoice::PROVIDER_MASK;
-  }
-
-  return make_tl_object<telegram_api::inputMediaInvoice>(
-      flags, title_, description_, std::move(input_web_document), invoice_.get_input_invoice(), BufferSlice(payload_),
-      provider_token_,
-      telegram_api::make_object<telegram_api::dataJSON>(provider_data_.empty() ? "null" : provider_data_),
-      start_parameter_, std::move(extended_media));
-}
-
-tl_object_ptr<telegram_api::inputBotInlineMessageMediaInvoice> InputInvoice::get_input_bot_inline_message_media_invoice(
-    tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup, Td *td) const {
-  int32 flags = 0;
-  if (reply_markup != nullptr) {
-    flags |= telegram_api::inputBotInlineMessageMediaInvoice::REPLY_MARKUP_MASK;
-  }
-  auto input_web_document = get_input_web_document(td->file_manager_.get(), photo_);
-  if (input_web_document != nullptr) {
-    flags |= telegram_api::inputBotInlineMessageMediaInvoice::PHOTO_MASK;
-  }
-  return make_tl_object<telegram_api::inputBotInlineMessageMediaInvoice>(
-      flags, title_, description_, std::move(input_web_document), invoice_.get_input_invoice(), BufferSlice(payload_),
-      provider_token_,
-      telegram_api::make_object<telegram_api::dataJSON>(provider_data_.empty() ? "null" : provider_data_),
-      std::move(reply_markup));
-}
-
-vector<FileId> InputInvoice::get_file_ids(const Td *td) const {
-  auto file_ids = photo_get_file_ids(photo_);
-  extended_media_.append_file_ids(td, file_ids);
-  return file_ids;
-}
-
-void InputInvoice::delete_thumbnail(Td *td) {
-  extended_media_.delete_thumbnail(td);
-}
-
-bool InputInvoice::need_reget() const {
-  return extended_media_.need_reget();
-}
-
-bool InputInvoice::has_media_timestamp() const {
-  return extended_media_.has_media_timestamp();
-}
-
-bool InputInvoice::is_equal_but_different(const InputInvoice &other) const {
-  return extended_media_.is_equal_but_different(other.extended_media_);
-}
-
-const FormattedText *InputInvoice::get_caption() const {
-  return &extended_media_caption_;
-}
-
-int32 InputInvoice::get_duration(const Td *td) const {
-  return extended_media_.get_duration(td);
-}
-
-FileId InputInvoice::get_any_file_id() const {
-  return extended_media_.get_any_file_id();
-}
-
-FileId InputInvoice::get_thumbnail_file_id(const Td *td) const {
-  return extended_media_.get_thumbnail_file_id(td);
-}
-
-void InputInvoice::update_from(const InputInvoice &old_input_invoice) {
-  extended_media_.update_from(old_input_invoice.extended_media_);
-}
-
-bool InputInvoice::update_extended_media(telegram_api::object_ptr<telegram_api::MessageExtendedMedia> extended_media,
-                                         DialogId owner_dialog_id, Td *td) {
-  return extended_media_.update_to(td, std::move(extended_media), owner_dialog_id);
-}
-
-bool InputInvoice::need_poll_extended_media() const {
-  return extended_media_.need_poll();
-}
-
-td_api::object_ptr<td_api::productInfo> get_product_info_object(Td *td, const string &title, const string &description,
-                                                                const Photo &photo) {
-  FormattedText formatted_description;
-  formatted_description.text = description;
-  formatted_description.entities = find_entities(formatted_description.text, true, true);
-  return td_api::make_object<td_api::productInfo>(
-      title, get_formatted_text_object(td->user_manager_.get(), formatted_description, true, 0),
-      get_photo_object(td->file_manager_.get(), photo));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputInvoice.h b/third-party/td/td/td/telegram/InputInvoice.h
deleted file mode 100644
index 1741a620d3..0000000000
--- a/third-party/td/td/td/telegram/InputInvoice.h
+++ /dev/null
@@ -1,135 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/LabeledPricePart.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageExtendedMedia.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class InputInvoice {
-  struct Invoice {
-    string currency_;
-    vector<LabeledPricePart> price_parts_;
-    int32 subscription_period_ = 0;
-    int64 max_tip_amount_ = 0;
-    vector<int64> suggested_tip_amounts_;
-    string recurring_payment_terms_of_service_url_;
-    string terms_of_service_url_;
-    bool is_test_ = false;
-    bool need_name_ = false;
-    bool need_phone_number_ = false;
-    bool need_email_address_ = false;
-    bool need_shipping_address_ = false;
-    bool send_phone_number_to_provider_ = false;
-    bool send_email_address_to_provider_ = false;
-    bool is_flexible_ = false;
-
-    Invoice() = default;
-    Invoice(string &&currency, bool is_test, bool need_shipping_address)
-        : currency_(std::move(currency)), is_test_(is_test), need_shipping_address_(need_shipping_address) {
-    }
-
-    tl_object_ptr<telegram_api::invoice> get_input_invoice() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  string title_;
-  string description_;
-  Photo photo_;
-  string start_parameter_;
-  Invoice invoice_;
-  string payload_;
-  string provider_token_;
-  string provider_data_;
-  MessageExtendedMedia extended_media_;
-  FormattedText extended_media_caption_;
-
-  int64 total_amount_ = 0;
-  MessageId receipt_message_id_;
-
-  friend bool operator==(const InputInvoice &lhs, const InputInvoice &rhs);
-
- public:
-  InputInvoice() = default;
-
-  InputInvoice(tl_object_ptr<telegram_api::messageMediaInvoice> &&message_invoice, Td *td, DialogId owner_dialog_id,
-               FormattedText &&message);
-
-  InputInvoice(tl_object_ptr<telegram_api::botInlineMessageMediaInvoice> &&message_invoice, Td *td,
-               DialogId owner_dialog_id);
-
-  static Result<InputInvoice> process_input_message_invoice(
-      td_api::object_ptr<td_api::InputMessageContent> &&input_message_content, Td *td, DialogId owner_dialog_id);
-
-  td_api::object_ptr<td_api::messageInvoice> get_message_invoice_object(Td *td, bool is_server, bool skip_bot_commands,
-                                                                        int32 max_media_timestamp) const;
-
-  tl_object_ptr<telegram_api::inputMediaInvoice> get_input_media_invoice(
-      Td *td, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) const;
-
-  tl_object_ptr<telegram_api::inputBotInlineMessageMediaInvoice> get_input_bot_inline_message_media_invoice(
-      tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup, Td *td) const;
-
-  vector<FileId> get_file_ids(const Td *td) const;
-
-  void delete_thumbnail(Td *td);
-
-  bool need_reget() const;
-
-  bool has_media_timestamp() const;
-
-  bool is_equal_but_different(const InputInvoice &other) const;
-
-  const FormattedText *get_caption() const;
-
-  int32 get_duration(const Td *td) const;
-
-  FileId get_any_file_id() const;
-
-  FileId get_thumbnail_file_id(const Td *td) const;
-
-  void update_from(const InputInvoice &old_input_invoice);
-
-  bool update_extended_media(telegram_api::object_ptr<telegram_api::MessageExtendedMedia> extended_media,
-                             DialogId owner_dialog_id, Td *td);
-
-  bool need_poll_extended_media() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const InputInvoice &lhs, const InputInvoice &rhs);
-bool operator!=(const InputInvoice &lhs, const InputInvoice &rhs);
-
-td_api::object_ptr<td_api::productInfo> get_product_info_object(Td *td, const string &title, const string &description,
-                                                                const Photo &photo);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputInvoice.hpp b/third-party/td/td/td/telegram/InputInvoice.hpp
deleted file mode 100644
index 05f7a2149b..0000000000
--- a/third-party/td/td/td/telegram/InputInvoice.hpp
+++ /dev/null
@@ -1,226 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/InputInvoice.h"
-
-#include "td/telegram/MessageEntity.hpp"
-#include "td/telegram/MessageExtendedMedia.hpp"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void InputInvoice::Invoice::store(StorerT &storer) const {
-  using td::store;
-  bool has_tip = max_tip_amount_ != 0;
-  bool is_recurring = !recurring_payment_terms_of_service_url_.empty();
-  bool has_terms_of_service = !terms_of_service_url_.empty();
-  bool has_subscription_period = subscription_period_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_test_);
-  STORE_FLAG(need_name_);
-  STORE_FLAG(need_phone_number_);
-  STORE_FLAG(need_email_address_);
-  STORE_FLAG(need_shipping_address_);
-  STORE_FLAG(is_flexible_);
-  STORE_FLAG(send_phone_number_to_provider_);
-  STORE_FLAG(send_email_address_to_provider_);
-  STORE_FLAG(has_tip);
-  STORE_FLAG(is_recurring);
-  STORE_FLAG(has_terms_of_service);
-  STORE_FLAG(has_subscription_period);
-  END_STORE_FLAGS();
-  store(currency_, storer);
-  store(price_parts_, storer);
-  if (has_tip) {
-    store(max_tip_amount_, storer);
-    store(suggested_tip_amounts_, storer);
-  }
-  if (is_recurring) {
-    store(recurring_payment_terms_of_service_url_, storer);
-  }
-  if (has_terms_of_service) {
-    store(terms_of_service_url_, storer);
-  }
-  if (has_subscription_period) {
-    store(subscription_period_, storer);
-  }
-}
-
-template <class ParserT>
-void InputInvoice::Invoice::parse(ParserT &parser) {
-  using td::parse;
-  bool has_tip;
-  bool is_recurring;
-  bool has_terms_of_service;
-  bool has_subscription_period;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_test_);
-  PARSE_FLAG(need_name_);
-  PARSE_FLAG(need_phone_number_);
-  PARSE_FLAG(need_email_address_);
-  PARSE_FLAG(need_shipping_address_);
-  PARSE_FLAG(is_flexible_);
-  PARSE_FLAG(send_phone_number_to_provider_);
-  PARSE_FLAG(send_email_address_to_provider_);
-  PARSE_FLAG(has_tip);
-  PARSE_FLAG(is_recurring);
-  PARSE_FLAG(has_terms_of_service);
-  PARSE_FLAG(has_subscription_period);
-  END_PARSE_FLAGS();
-  parse(currency_, parser);
-  parse(price_parts_, parser);
-  if (has_tip) {
-    parse(max_tip_amount_, parser);
-    parse(suggested_tip_amounts_, parser);
-  }
-  if (is_recurring) {
-    parse(recurring_payment_terms_of_service_url_, parser);
-  }
-  if (has_terms_of_service) {
-    parse(terms_of_service_url_, parser);
-  }
-  if (has_subscription_period) {
-    parse(subscription_period_, parser);
-  }
-}
-
-template <class StorerT>
-void InputInvoice::store(StorerT &storer) const {
-  using td::store;
-  bool has_description = !description_.empty();
-  bool has_photo = !photo_.is_empty();
-  bool has_start_parameter = !start_parameter_.empty();
-  bool has_payload = !payload_.empty();
-  bool has_provider_token = !provider_token_.empty();
-  bool has_provider_data = !provider_data_.empty();
-  bool has_total_amount = total_amount_ != 0;
-  bool has_receipt_message_id = receipt_message_id_.is_valid();
-  bool has_extended_media = !extended_media_.is_empty();
-  bool has_extended_media_caption = !extended_media_caption_.text.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_description);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(has_start_parameter);
-  STORE_FLAG(has_payload);
-  STORE_FLAG(has_provider_token);
-  STORE_FLAG(has_provider_data);
-  STORE_FLAG(has_total_amount);
-  STORE_FLAG(has_receipt_message_id);
-  STORE_FLAG(has_extended_media);
-  STORE_FLAG(has_extended_media_caption);
-  END_STORE_FLAGS();
-  store(title_, storer);
-  if (has_description) {
-    store(description_, storer);
-  }
-  if (has_photo) {
-    store(photo_, storer);
-  }
-  if (has_start_parameter) {
-    store(start_parameter_, storer);
-  }
-  store(invoice_, storer);
-  if (has_payload) {
-    store(payload_, storer);
-  }
-  if (has_provider_token) {
-    store(provider_token_, storer);
-  }
-  if (has_provider_data) {
-    store(provider_data_, storer);
-  }
-  if (has_total_amount) {
-    store(total_amount_, storer);
-  }
-  if (has_receipt_message_id) {
-    store(receipt_message_id_, storer);
-  }
-  if (has_extended_media) {
-    store(extended_media_, storer);
-  }
-  if (has_extended_media_caption) {
-    store(extended_media_caption_, storer);
-  }
-}
-
-template <class ParserT>
-void InputInvoice::parse(ParserT &parser) {
-  using td::parse;
-  bool has_description;
-  bool has_photo;
-  bool has_start_parameter;
-  bool has_payload;
-  bool has_provider_token;
-  bool has_provider_data;
-  bool has_total_amount;
-  bool has_receipt_message_id;
-  bool has_extended_media;
-  bool has_extended_media_caption = false;
-  if (parser.version() >= static_cast<int32>(Version::AddInputInvoiceFlags)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_description);
-    PARSE_FLAG(has_photo);
-    PARSE_FLAG(has_start_parameter);
-    PARSE_FLAG(has_payload);
-    PARSE_FLAG(has_provider_token);
-    PARSE_FLAG(has_provider_data);
-    PARSE_FLAG(has_total_amount);
-    PARSE_FLAG(has_receipt_message_id);
-    PARSE_FLAG(has_extended_media);
-    PARSE_FLAG(has_extended_media_caption);
-    END_PARSE_FLAGS();
-  } else {
-    has_description = true;
-    has_photo = true;
-    has_start_parameter = true;
-    has_payload = true;
-    has_provider_token = true;
-    has_provider_data = parser.version() >= static_cast<int32>(Version::AddMessageInvoiceProviderData);
-    has_total_amount = true;
-    has_receipt_message_id = true;
-    has_extended_media = false;
-  }
-  parse(title_, parser);
-  if (has_description) {
-    parse(description_, parser);
-  }
-  if (has_photo) {
-    parse(photo_, parser);
-  }
-  if (has_start_parameter) {
-    parse(start_parameter_, parser);
-  }
-  parse(invoice_, parser);
-  if (has_payload) {
-    parse(payload_, parser);
-  }
-  if (has_provider_token) {
-    parse(provider_token_, parser);
-  }
-  if (has_provider_data) {
-    parse(provider_data_, parser);
-  }
-  if (has_total_amount) {
-    parse(total_amount_, parser);
-  }
-  if (has_receipt_message_id) {
-    parse(receipt_message_id_, parser);
-  }
-  if (has_extended_media) {
-    parse(extended_media_, parser);
-  }
-  if (has_extended_media_caption) {
-    parse(extended_media_caption_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputMessageText.cpp b/third-party/td/td/td/telegram/InputMessageText.cpp
deleted file mode 100644
index 59280233fb..0000000000
--- a/third-party/td/td/td/telegram/InputMessageText.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/InputMessageText.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-bool operator==(const InputMessageText &lhs, const InputMessageText &rhs) {
-  return lhs.text == rhs.text && lhs.disable_web_page_preview == rhs.disable_web_page_preview &&
-         lhs.clear_draft == rhs.clear_draft;
-}
-
-bool operator!=(const InputMessageText &lhs, const InputMessageText &rhs) {
-  return !(lhs == rhs);
-}
-
-Result<InputMessageText> process_input_message_text(const Td *td, DialogId dialog_id,
-                                                    tl_object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                                    bool is_bot, bool for_draft) {
-  CHECK(input_message_content != nullptr);
-  CHECK(input_message_content->get_id() == td_api::inputMessageText::ID);
-  auto input_message_text = static_cast<td_api::inputMessageText *>(input_message_content.get());
-  string web_page_url;
-  bool disable_web_page_preview = false;
-  bool force_small_media = false;
-  bool force_large_media = false;
-  bool show_above_text = false;
-  if (input_message_text->link_preview_options_ != nullptr) {
-    auto options = std::move(input_message_text->link_preview_options_);
-    web_page_url = std::move(options->url_);
-    disable_web_page_preview = options->is_disabled_;
-    force_small_media = options->force_small_media_;
-    force_large_media = options->force_large_media_;
-    show_above_text = options->show_above_text_;
-
-    if (!clean_input_string(web_page_url)) {
-      return Status::Error(400, "Link preview URL must be encoded in UTF-8");
-    }
-
-    if (disable_web_page_preview ||
-        (dialog_id.get_type() == DialogType::Channel &&
-         !td->chat_manager_->get_channel_permissions(dialog_id.get_channel_id()).can_add_web_page_previews())) {
-      web_page_url.clear();
-    }
-    if (web_page_url.empty()) {
-      force_small_media = false;
-      force_large_media = false;
-    }
-  }
-  TRY_RESULT(text, get_formatted_text(td, dialog_id, std::move(input_message_text->text_), is_bot,
-                                      for_draft || !web_page_url.empty(), for_draft, for_draft));
-  if (!disable_web_page_preview && web_page_url.empty() && dialog_id.get_type() == DialogType::SecretChat) {
-    web_page_url = get_first_url(text).str();
-  }
-  return InputMessageText{
-      std::move(text),   std::move(web_page_url), disable_web_page_preview,        force_small_media,
-      force_large_media, show_above_text,         input_message_text->clear_draft_};
-}
-
-void InputMessageText::add_dependencies(Dependencies &dependencies) const {
-  add_formatted_text_dependencies(dependencies, &text);
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> InputMessageText::get_input_media_web_page() const {
-  if (web_page_url.empty()) {
-    return nullptr;
-  }
-  auto is_optional = !text.text.empty();
-  return telegram_api::make_object<telegram_api::inputMediaWebPage>(0, force_large_media, force_small_media,
-                                                                    is_optional, web_page_url);
-}
-
-// used only for draft
-td_api::object_ptr<td_api::inputMessageText> InputMessageText::get_input_message_text_object(
-    const UserManager *user_manager) const {
-  td_api::object_ptr<td_api::linkPreviewOptions> options;
-  if (!web_page_url.empty() || disable_web_page_preview || force_small_media || force_large_media || show_above_text) {
-    options = td_api::make_object<td_api::linkPreviewOptions>(disable_web_page_preview, web_page_url, force_small_media,
-                                                              force_large_media, show_above_text);
-  }
-  return td_api::make_object<td_api::inputMessageText>(get_formatted_text_object(user_manager, text, false, -1),
-                                                       std::move(options), clear_draft);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputMessageText.h b/third-party/td/td/td/telegram/InputMessageText.h
deleted file mode 100644
index c1d2064f1b..0000000000
--- a/third-party/td/td/td/telegram/InputMessageText.h
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Dependencies;
-
-class Td;
-
-class UserManager;
-
-class InputMessageText {
- public:
-  FormattedText text;
-  string web_page_url;
-  bool disable_web_page_preview = false;
-  bool force_small_media = false;
-  bool force_large_media = false;
-  bool show_above_text = false;
-  bool clear_draft = false;
-
-  InputMessageText() = default;
-  InputMessageText(FormattedText text, string &&web_page_url, bool disable_web_page_preview, bool force_small_media,
-                   bool force_large_media, bool show_above_text, bool clear_draft)
-      : text(std::move(text))
-      , web_page_url(std::move(web_page_url))
-      , disable_web_page_preview(disable_web_page_preview)
-      , force_small_media(force_small_media)
-      , force_large_media(force_large_media)
-      , show_above_text(show_above_text)
-      , clear_draft(clear_draft) {
-  }
-
-  bool is_empty() const {
-    return text.text.empty() && web_page_url.empty();
-  }
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  telegram_api::object_ptr<telegram_api::InputMedia> get_input_media_web_page() const;
-
-  td_api::object_ptr<td_api::inputMessageText> get_input_message_text_object(const UserManager *user_manager) const;
-};
-
-bool operator==(const InputMessageText &lhs, const InputMessageText &rhs);
-bool operator!=(const InputMessageText &lhs, const InputMessageText &rhs);
-
-Result<InputMessageText> process_input_message_text(const Td *td, DialogId dialog_id,
-                                                    tl_object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                                    bool is_bot, bool for_draft = false) TD_WARN_UNUSED_RESULT;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/InputMessageText.hpp b/third-party/td/td/td/telegram/InputMessageText.hpp
deleted file mode 100644
index c7cda5bf00..0000000000
--- a/third-party/td/td/td/telegram/InputMessageText.hpp
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/InputMessageText.h"
-
-#include "td/telegram/MessageEntity.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const InputMessageText &input_message_text, StorerT &storer) {
-  bool has_web_page_url = !input_message_text.web_page_url.empty();
-  bool has_empty_text = input_message_text.text.text.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(input_message_text.disable_web_page_preview);
-  STORE_FLAG(input_message_text.clear_draft);
-  STORE_FLAG(input_message_text.force_small_media);
-  STORE_FLAG(input_message_text.force_large_media);
-  STORE_FLAG(has_web_page_url);
-  STORE_FLAG(has_empty_text);
-  END_STORE_FLAGS();
-  if (!has_empty_text) {
-    store(input_message_text.text, storer);
-  }
-  if (has_web_page_url) {
-    store(input_message_text.web_page_url, storer);
-  }
-}
-
-template <class ParserT>
-void parse(InputMessageText &input_message_text, ParserT &parser) {
-  bool has_web_page_url;
-  bool has_empty_text;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(input_message_text.disable_web_page_preview);
-  PARSE_FLAG(input_message_text.clear_draft);
-  PARSE_FLAG(input_message_text.force_small_media);
-  PARSE_FLAG(input_message_text.force_large_media);
-  PARSE_FLAG(has_web_page_url);
-  PARSE_FLAG(has_empty_text);
-  END_PARSE_FLAGS();
-  if (!has_empty_text) {
-    parse(input_message_text.text, parser);
-  }
-  if (has_web_page_url) {
-    parse(input_message_text.web_page_url, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/JsonValue.cpp b/third-party/td/td/td/telegram/JsonValue.cpp
deleted file mode 100644
index 4831f297b2..0000000000
--- a/third-party/td/td/td/telegram/JsonValue.cpp
+++ /dev/null
@@ -1,247 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/JsonValue.h"
-
-#include "td/telegram/misc.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/utf8.h"
-
-#include <utility>
-
-namespace td {
-
-static td_api::object_ptr<td_api::JsonValue> get_json_value_object(const JsonValue &json_value) {
-  switch (json_value.type()) {
-    case JsonValue::Type::Null:
-      return td_api::make_object<td_api::jsonValueNull>();
-    case JsonValue::Type::Boolean:
-      return td_api::make_object<td_api::jsonValueBoolean>(json_value.get_boolean());
-    case JsonValue::Type::Number:
-      return td_api::make_object<td_api::jsonValueNumber>(to_double(json_value.get_number()));
-    case JsonValue::Type::String:
-      return td_api::make_object<td_api::jsonValueString>(json_value.get_string().str());
-    case JsonValue::Type::Array:
-      return td_api::make_object<td_api::jsonValueArray>(transform(json_value.get_array(), get_json_value_object));
-    case JsonValue::Type::Object: {
-      vector<td_api::object_ptr<td_api::jsonObjectMember>> members;
-      json_value.get_object().foreach([&members](Slice name, const JsonValue &value) {
-        members.push_back(td_api::make_object<td_api::jsonObjectMember>(name.str(), get_json_value_object(value)));
-      });
-      return td_api::make_object<td_api::jsonValueObject>(std::move(members));
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-Result<td_api::object_ptr<td_api::JsonValue>> get_json_value(MutableSlice json) {
-  TRY_RESULT(json_value, json_decode(json));
-  return get_json_value_object(json_value);
-}
-
-Result<telegram_api::object_ptr<telegram_api::JSONValue>> get_input_json_value(MutableSlice json) {
-  TRY_RESULT(json_value, get_json_value(json));
-  return convert_json_value(std::move(json_value));
-}
-
-static td_api::object_ptr<td_api::jsonObjectMember> convert_json_value_member_object(
-    const telegram_api::object_ptr<telegram_api::jsonObjectValue> &json_object_value) {
-  CHECK(json_object_value != nullptr);
-  return td_api::make_object<td_api::jsonObjectMember>(json_object_value->key_,
-                                                       convert_json_value_object(json_object_value->value_));
-}
-
-td_api::object_ptr<td_api::JsonValue> convert_json_value_object(
-    const tl_object_ptr<telegram_api::JSONValue> &json_value) {
-  CHECK(json_value != nullptr);
-  switch (json_value->get_id()) {
-    case telegram_api::jsonNull::ID:
-      return td_api::make_object<td_api::jsonValueNull>();
-    case telegram_api::jsonBool::ID:
-      return td_api::make_object<td_api::jsonValueBoolean>(
-          static_cast<const telegram_api::jsonBool *>(json_value.get())->value_);
-    case telegram_api::jsonNumber::ID:
-      return td_api::make_object<td_api::jsonValueNumber>(
-          static_cast<const telegram_api::jsonNumber *>(json_value.get())->value_);
-    case telegram_api::jsonString::ID:
-      return td_api::make_object<td_api::jsonValueString>(
-          static_cast<const telegram_api::jsonString *>(json_value.get())->value_);
-    case telegram_api::jsonArray::ID:
-      return td_api::make_object<td_api::jsonValueArray>(
-          transform(static_cast<const telegram_api::jsonArray *>(json_value.get())->value_, convert_json_value_object));
-    case telegram_api::jsonObject::ID:
-      return td_api::make_object<td_api::jsonValueObject>(transform(
-          static_cast<const telegram_api::jsonObject *>(json_value.get())->value_, convert_json_value_member_object));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-static telegram_api::object_ptr<telegram_api::jsonObjectValue> convert_json_value_member(
-    td_api::object_ptr<td_api::jsonObjectMember> &&json_object_member) {
-  CHECK(json_object_member != nullptr);
-  if (!clean_input_string(json_object_member->key_)) {
-    json_object_member->key_.clear();
-  }
-  return telegram_api::make_object<telegram_api::jsonObjectValue>(
-      json_object_member->key_, convert_json_value(std::move(json_object_member->value_)));
-}
-
-tl_object_ptr<telegram_api::JSONValue> convert_json_value(td_api::object_ptr<td_api::JsonValue> &&json_value) {
-  if (json_value == nullptr) {
-    return td_api::make_object<telegram_api::jsonNull>();
-  }
-  switch (json_value->get_id()) {
-    case td_api::jsonValueNull::ID:
-      return telegram_api::make_object<telegram_api::jsonNull>();
-    case td_api::jsonValueBoolean::ID:
-      return telegram_api::make_object<telegram_api::jsonBool>(
-          static_cast<const td_api::jsonValueBoolean *>(json_value.get())->value_);
-    case td_api::jsonValueNumber::ID:
-      return telegram_api::make_object<telegram_api::jsonNumber>(
-          static_cast<const td_api::jsonValueNumber *>(json_value.get())->value_);
-    case td_api::jsonValueString::ID: {
-      auto &str = static_cast<td_api::jsonValueString *>(json_value.get())->value_;
-      if (!clean_input_string(str)) {
-        str.clear();
-      }
-      return telegram_api::make_object<telegram_api::jsonString>(str);
-    }
-    case td_api::jsonValueArray::ID:
-      return telegram_api::make_object<telegram_api::jsonArray>(
-          transform(std::move(static_cast<td_api::jsonValueArray *>(json_value.get())->values_), convert_json_value));
-    case td_api::jsonValueObject::ID:
-      return telegram_api::make_object<telegram_api::jsonObject>(transform(
-          std::move(static_cast<td_api::jsonValueObject *>(json_value.get())->members_), convert_json_value_member));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-namespace {
-
-class JsonableJsonValue final : public Jsonable {
- public:
-  explicit JsonableJsonValue(const td_api::JsonValue *json_value) : json_value_(json_value) {
-  }
-  void store(JsonValueScope *scope) const {
-    if (json_value_ == nullptr) {
-      *scope << JsonNull();
-      return;
-    }
-    switch (json_value_->get_id()) {
-      case td_api::jsonValueNull::ID:
-        *scope << JsonNull();
-        break;
-      case td_api::jsonValueBoolean::ID:
-        *scope << JsonBool(static_cast<const td_api::jsonValueBoolean *>(json_value_)->value_);
-        break;
-      case td_api::jsonValueNumber::ID:
-        *scope << static_cast<const td_api::jsonValueNumber *>(json_value_)->value_;
-        break;
-      case td_api::jsonValueString::ID: {
-        auto &str = static_cast<const td_api::jsonValueString *>(json_value_)->value_;
-        if (!check_utf8(str)) {
-          LOG(ERROR) << "Have incorrect UTF-8 string " << str;
-          *scope << "";
-        } else {
-          *scope << str;
-        }
-        break;
-      }
-      case td_api::jsonValueArray::ID: {
-        auto array = scope->enter_array();
-        for (auto &value : static_cast<const td_api::jsonValueArray *>(json_value_)->values_) {
-          array << JsonableJsonValue(value.get());
-        }
-        break;
-      }
-      case td_api::jsonValueObject::ID: {
-        auto object = scope->enter_object();
-        for (auto &member : static_cast<const td_api::jsonValueObject *>(json_value_)->members_) {
-          if (member != nullptr) {
-            if (!check_utf8(member->key_)) {
-              LOG(ERROR) << "Have incorrect UTF-8 object key " << member->key_;
-            } else {
-              object(member->key_, JsonableJsonValue(member->value_.get()));
-            }
-          }
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
- private:
-  const td_api::JsonValue *json_value_;
-};
-
-}  // namespace
-
-string get_json_string(const td_api::JsonValue *json_value) {
-  return json_encode<string>(JsonableJsonValue(json_value));
-}
-
-bool get_json_value_bool(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name) {
-  CHECK(json_value != nullptr);
-  if (json_value->get_id() == telegram_api::jsonBool::ID) {
-    return static_cast<const telegram_api::jsonBool *>(json_value.get())->value_;
-  }
-  LOG(ERROR) << "Expected Boolean as " << name << ", but found " << to_string(json_value);
-  return false;
-}
-
-int32 get_json_value_int(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name) {
-  CHECK(json_value != nullptr);
-  if (json_value->get_id() == telegram_api::jsonNumber::ID) {
-    return static_cast<int32>(static_cast<const telegram_api::jsonNumber *>(json_value.get())->value_);
-  }
-  LOG(ERROR) << "Expected Integer as " << name << ", but found " << to_string(json_value);
-  return 0;
-}
-
-int64 get_json_value_long(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name) {
-  CHECK(json_value != nullptr);
-  if (json_value->get_id() == telegram_api::jsonString::ID) {
-    return to_integer<int64>(static_cast<const telegram_api::jsonString *>(json_value.get())->value_);
-  }
-  if (json_value->get_id() == telegram_api::jsonNumber::ID) {
-    return static_cast<int64>(static_cast<const telegram_api::jsonNumber *>(json_value.get())->value_);
-  }
-  LOG(ERROR) << "Expected Long as " << name << ", but found " << to_string(json_value);
-  return 0;
-}
-
-double get_json_value_double(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name) {
-  CHECK(json_value != nullptr);
-  if (json_value->get_id() == telegram_api::jsonNumber::ID) {
-    return static_cast<const telegram_api::jsonNumber *>(json_value.get())->value_;
-  }
-  LOG(ERROR) << "Expected Double as " << name << ", but found " << to_string(json_value);
-  return 0.0;
-}
-
-string get_json_value_string(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name) {
-  CHECK(json_value != nullptr);
-  if (json_value->get_id() == telegram_api::jsonString::ID) {
-    return std::move(static_cast<telegram_api::jsonString *>(json_value.get())->value_);
-  }
-  LOG(ERROR) << "Expected String as " << name << ", but found " << to_string(json_value);
-  return string();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/JsonValue.h b/third-party/td/td/td/telegram/JsonValue.h
deleted file mode 100644
index ca250dab37..0000000000
--- a/third-party/td/td/td/telegram/JsonValue.h
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-Result<td_api::object_ptr<td_api::JsonValue>> get_json_value(MutableSlice json);
-
-Result<telegram_api::object_ptr<telegram_api::JSONValue>> get_input_json_value(MutableSlice json);
-
-td_api::object_ptr<td_api::JsonValue> convert_json_value_object(
-    const tl_object_ptr<telegram_api::JSONValue> &json_value);
-
-tl_object_ptr<telegram_api::JSONValue> convert_json_value(td_api::object_ptr<td_api::JsonValue> &&json_value);
-
-string get_json_string(const td_api::JsonValue *json_value);
-
-bool get_json_value_bool(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name);
-
-int32 get_json_value_int(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name);
-
-int64 get_json_value_long(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name);
-
-double get_json_value_double(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name);
-
-string get_json_value_string(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/LabeledPricePart.h b/third-party/td/td/td/telegram/LabeledPricePart.h
deleted file mode 100644
index be8ab91a7c..0000000000
--- a/third-party/td/td/td/telegram/LabeledPricePart.h
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct LabeledPricePart {
-  string label;
-  int64 amount = 0;
-
-  LabeledPricePart() = default;
-  LabeledPricePart(string &&label, int64 amount) : label(std::move(label)), amount(amount) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_string(label);
-    storer.store_binary(amount);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    label = parser.template fetch_string<string>();
-    amount = parser.fetch_long();
-  }
-};
-
-inline bool operator==(const LabeledPricePart &lhs, const LabeledPricePart &rhs) {
-  return lhs.label == rhs.label && lhs.amount == rhs.amount;
-}
-
-inline bool operator!=(const LabeledPricePart &lhs, const LabeledPricePart &rhs) {
-  return !(lhs == rhs);
-}
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const LabeledPricePart &labeled_price_part) {
-  return string_builder << '[' << labeled_price_part.label << ": " << labeled_price_part.amount << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/LanguagePackManager.cpp b/third-party/td/td/td/telegram/LanguagePackManager.cpp
deleted file mode 100644
index 4b157f602c..0000000000
--- a/third-party/td/td/td/telegram/LanguagePackManager.cpp
+++ /dev/null
@@ -1,1889 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/LanguagePackManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/db/DbKey.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteKeyValue.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-#include <atomic>
-#include <limits>
-#include <map>
-#include <utility>
-
-namespace td {
-
-struct LanguagePackManager::PluralizedString {
-  string zero_value_;
-  string one_value_;
-  string two_value_;
-  string few_value_;
-  string many_value_;
-  string other_value_;
-
-  PluralizedString(string &&zero_value, string &&one_value, string &&two_value, string &&few_value, string &&many_value,
-                   string &&other_value)
-      : zero_value_(std::move(zero_value))
-      , one_value_(std::move(one_value))
-      , two_value_(std::move(two_value))
-      , few_value_(std::move(few_value))
-      , many_value_(std::move(many_value))
-      , other_value_(std::move(other_value)) {
-  }
-};
-
-struct LanguagePackManager::Language {
-  std::mutex mutex_;
-  std::atomic<int32> version_{-1};
-  std::atomic<int32> key_count_{0};
-  std::string base_language_code_;
-  bool is_full_ = false;
-  bool was_loaded_full_ = false;
-  bool has_get_difference_query_ = false;
-  vector<Promise<Unit>> get_difference_queries_;
-  FlatHashMap<string, string> ordinary_strings_;
-  FlatHashMap<string, unique_ptr<PluralizedString>> pluralized_strings_;
-  FlatHashSet<string> deleted_strings_;
-  SqliteKeyValue kv_;  // usages must be guarded by database_->mutex_
-};
-
-struct LanguagePackManager::LanguageInfo {
-  string name_;
-  string native_name_;
-  string base_language_code_;
-  string plural_code_;
-  bool is_official_ = false;
-  bool is_rtl_ = false;
-  bool is_beta_ = false;
-  bool is_from_database_ = false;
-  int32 total_string_count_ = 0;  // TODO move to LanguagePack and calculate as max(total_string_count)
-  int32 translated_string_count_ = 0;
-  string translation_url_;
-
-  friend bool operator==(const LanguageInfo &lhs, const LanguageInfo &rhs) {
-    return lhs.name_ == rhs.name_ && lhs.native_name_ == rhs.native_name_ &&
-           lhs.base_language_code_ == rhs.base_language_code_ && lhs.plural_code_ == rhs.plural_code_ &&
-           lhs.is_official_ == rhs.is_official_ && lhs.is_rtl_ == rhs.is_rtl_ && lhs.is_beta_ == rhs.is_beta_ &&
-           lhs.total_string_count_ == rhs.total_string_count_ &&
-           lhs.translated_string_count_ == rhs.translated_string_count_ && lhs.translation_url_ == rhs.translation_url_;
-  }
-};
-
-struct LanguagePackManager::LanguagePack {
-  std::mutex mutex_;
-  SqliteKeyValue pack_kv_;                                              // usages must be guarded by database_->mutex_
-  std::map<string, LanguageInfo> custom_language_pack_infos_;           // sorted by language_code
-  vector<std::pair<string, LanguageInfo>> server_language_pack_infos_;  // sorted by server
-  FlatHashMap<string, unique_ptr<LanguageInfo>> all_server_language_pack_infos_;
-  FlatHashMap<string, unique_ptr<Language>> languages_;
-};
-
-struct LanguagePackManager::LanguageDatabase {
-  std::mutex mutex_;
-  string path_;
-  SqliteDb database_;
-  FlatHashMap<string, unique_ptr<LanguagePack>> language_packs_;
-};
-
-LanguagePackManager::~LanguagePackManager() = default;
-
-bool LanguagePackManager::check_language_pack_name(Slice name) {
-  for (auto c : name) {
-    if (c != '_' && !is_alpha(c)) {
-      return false;
-    }
-  }
-  return name.size() <= 64;
-}
-
-bool LanguagePackManager::check_language_code_name(Slice name) {
-  for (auto c : name) {
-    if (c != '-' && !is_alpha(c) && !is_digit(c)) {
-      return false;
-    }
-  }
-  return name.size() <= 64 && (is_custom_language_code(name) || name.empty() || name.size() >= 2);
-}
-
-bool LanguagePackManager::is_custom_language_code(Slice language_code) {
-  return !language_code.empty() && language_code[0] == 'X';
-}
-
-static Result<SqliteDb> open_database(const string &path) {
-  TRY_RESULT(database, SqliteDb::open_with_key(path, true, DbKey::empty()));
-  TRY_STATUS(database.exec("PRAGMA journal_mode=WAL"));
-  return std::move(database);
-}
-
-static int32 load_database_language_version(SqliteKeyValue *kv) {
-  CHECK(kv != nullptr);
-  if (kv->empty()) {
-    return -1;
-  }
-  string str_version = kv->get("!version");
-  if (str_version.empty()) {
-    return -1;
-  }
-
-  return to_integer<int32>(str_version);
-}
-
-static int32 load_database_language_key_count(SqliteKeyValue *kv) {
-  CHECK(kv != nullptr);
-  if (kv->empty()) {
-    return 0;
-  }
-  string str_key_count = kv->get("!key_count");
-  if (str_key_count.empty()) {
-    // calculate key count once for the database and cache it
-    int key_count = 0;
-    for (auto &str : kv->get_all()) {
-      key_count += str.first[0] != '!' && (str.second[0] == '1' || str.second[0] == '2');
-    }
-    LOG(INFO) << "Set language pack key count in database to " << key_count;
-    kv->set("!key_count", to_string(key_count));
-    return key_count;
-  }
-
-  return to_integer<int32>(str_key_count);
-}
-
-static string load_database_language_base_language_code(SqliteKeyValue *kv) {
-  CHECK(kv != nullptr);
-  if (kv->empty()) {
-    return string();
-  }
-  return kv->get("!base_language_code");
-}
-
-LanguagePackManager::LanguageDatabase *LanguagePackManager::add_language_database(string path) {
-  auto it = language_databases_.find(path);
-  if (it != language_databases_.end()) {
-    return it->second.get();
-  }
-
-  SqliteDb database;
-  if (!path.empty()) {
-    auto r_database = open_database(path);
-    if (r_database.is_error()) {
-      LOG(ERROR) << "Can't open language pack database " << path << ": " << r_database.error();
-      return add_language_database(string());
-    }
-
-    database = r_database.move_as_ok();
-  }
-
-  it = language_databases_.emplace(path, make_unique<LanguageDatabase>()).first;
-  it->second->path_ = std::move(path);
-  it->second->database_ = std::move(database);
-  return it->second.get();
-}
-
-LanguagePackManager::LanguagePackManager(ActorShared<> parent) : parent_(std::move(parent)) {
-  std::lock_guard<std::mutex> database_lock(language_database_mutex_);
-  manager_count_++;
-  language_pack_ = G()->get_option_string("localization_target");
-  language_code_ = G()->get_option_string("language_pack_id");
-  CHECK(check_language_pack_name(language_pack_));
-  CHECK(check_language_code_name(language_code_));
-
-  database_ = add_language_database(G()->get_option_string("language_pack_database_path"));
-  if (!language_pack_.empty() && !language_code_.empty()) {
-    auto language = add_language(database_, language_pack_, language_code_);
-
-    std::lock_guard<std::mutex> language_lock(language->mutex_);
-    base_language_code_ = language->base_language_code_;
-    if (!check_language_code_name(base_language_code_)) {
-      LOG(ERROR) << "Have invalid base language pack ID \"" << base_language_code_ << '"';
-      base_language_code_.clear();
-    }
-    if (!base_language_code_.empty()) {
-      add_language(database_, language_pack_, base_language_code_);
-    }
-
-    LOG(INFO) << "Use localization target \"" << language_pack_ << "\" with language pack \"" << language_code_
-              << "\" based on \"" << base_language_code_ << "\" of version " << language->version_.load()
-              << " with database \"" << database_->path_ << '"';
-  }
-}
-
-void LanguagePackManager::start_up() {
-  if (language_pack_.empty() || language_code_.empty()) {
-    return;
-  }
-
-  auto language = get_language(database_, language_pack_, language_code_);
-  CHECK(language != nullptr);
-  if (language->version_ == -1) {
-    load_empty_language_pack(language_code_);
-  }
-  repair_chosen_language_info();
-
-  if (!base_language_code_.empty()) {
-    auto base_language = get_language(database_, language_pack_, base_language_code_);
-    CHECK(base_language != nullptr);
-    if (base_language->version_ == -1) {
-      load_empty_language_pack(base_language_code_);
-    }
-  }
-
-  on_language_pack_version_changed(false, -1);
-  on_language_pack_version_changed(true, -1);
-}
-
-void LanguagePackManager::tear_down() {
-  if (ExitGuard::is_exited()) {
-    return;
-  }
-  std::lock_guard<std::mutex> lock(language_database_mutex_);
-  manager_count_--;
-  if (manager_count_ == 0) {
-    // can't clear language packs, because they can be accessed later using synchronous requests
-    // LOG(INFO) << "Clear language packs";
-    // language_databases_.clear();
-  }
-}
-
-string LanguagePackManager::get_main_language_code() {
-  if (language_pack_.empty() || language_code_.empty()) {
-    return "en";
-  }
-  if (language_code_.size() == 2) {
-    return language_code_;
-  }
-
-  std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-  auto pack_it = database_->language_packs_.find(language_pack_);
-  CHECK(pack_it != database_->language_packs_.end());
-
-  LanguageInfo *info = nullptr;
-  LanguagePack *pack = pack_it->second.get();
-  std::lock_guard<std::mutex> languages_lock(pack->mutex_);
-  if (is_custom_language_code(language_code_)) {
-    auto custom_it = pack->custom_language_pack_infos_.find(language_code_);
-    if (custom_it != pack->custom_language_pack_infos_.end()) {
-      info = &custom_it->second;
-    }
-  } else {
-    for (auto &server_info : pack->server_language_pack_infos_) {
-      if (server_info.first == language_code_) {
-        info = &server_info.second;
-      }
-    }
-  }
-
-  if (info == nullptr) {
-    LOG(INFO) << "Failed to find information about chosen language " << language_code_
-              << ", ensure that valid language pack ID is used";
-    if (!is_custom_language_code(language_code_)) {
-      get_languages(false, Auto());
-    }
-  } else {
-    if (!info->base_language_code_.empty()) {
-      return info->base_language_code_;
-    }
-    if (!info->plural_code_.empty()) {
-      return info->plural_code_;
-    }
-  }
-  return "en";
-}
-
-vector<string> LanguagePackManager::get_used_language_codes() {
-  if (language_pack_.empty() || language_code_.empty()) {
-    return {};
-  }
-
-  std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-  auto pack_it = database_->language_packs_.find(language_pack_);
-  CHECK(pack_it != database_->language_packs_.end());
-
-  LanguageInfo *info = nullptr;
-  LanguagePack *pack = pack_it->second.get();
-  std::lock_guard<std::mutex> languages_lock(pack->mutex_);
-  if (is_custom_language_code(language_code_)) {
-    auto custom_it = pack->custom_language_pack_infos_.find(language_code_);
-    if (custom_it != pack->custom_language_pack_infos_.end()) {
-      info = &custom_it->second;
-    }
-  } else {
-    for (auto &server_info : pack->server_language_pack_infos_) {
-      if (server_info.first == language_code_) {
-        info = &server_info.second;
-      }
-    }
-  }
-
-  vector<string> result;
-  if (language_code_.size() == 2) {
-    result.push_back(language_code_);
-  }
-  if (info == nullptr) {
-    LOG(INFO) << "Failed to find information about chosen language " << language_code_
-              << ", ensure that valid language pack ID is used";
-    if (!is_custom_language_code(language_code_)) {
-      get_languages(false, Auto());
-    }
-  } else {
-    if (!info->base_language_code_.empty()) {
-      result.push_back(info->base_language_code_);
-    }
-    if (!info->plural_code_.empty()) {
-      result.push_back(info->plural_code_);
-    }
-  }
-  return result;
-}
-
-void LanguagePackManager::on_language_pack_changed() {
-  auto new_language_pack = G()->get_option_string("localization_target");
-  if (new_language_pack == language_pack_) {
-    return;
-  }
-
-  language_pack_ = std::move(new_language_pack);
-  CHECK(check_language_pack_name(language_pack_));
-  inc_generation();
-}
-
-void LanguagePackManager::on_language_code_changed() {
-  auto new_language_code = G()->get_option_string("language_pack_id");
-  if (new_language_code == language_code_) {
-    return;
-  }
-
-  language_code_ = std::move(new_language_code);
-  CHECK(check_language_code_name(language_code_));
-  inc_generation();
-}
-
-void LanguagePackManager::on_language_pack_version_changed(bool is_base, int32 new_version) {
-  if (language_pack_.empty() || language_code_.empty()) {
-    return;
-  }
-
-  Language *language = get_language(database_, language_pack_, language_code_);
-  int32 version = language == nullptr ? static_cast<int32>(-1) : language->version_.load();
-  LOG(INFO) << (is_base ? "Base" : "Main") << " language pack version has changed from main " << version << " to "
-            << new_version;
-  if (version == -1) {
-    return load_empty_language_pack(language_code_);
-  }
-
-  if (new_version < 0) {
-    Slice version_key = is_base ? Slice("base_language_pack_version") : Slice("language_pack_version");
-    new_version = narrow_cast<int32>(G()->get_option_integer(version_key, -1));
-  }
-  if (new_version <= 0) {
-    return;
-  }
-
-  string language_code;
-  if (is_base) {
-    language_code = base_language_code_;
-    if (language_code.empty()) {
-      LOG(ERROR) << "Have no base language, but received new version " << new_version;
-      return;
-    }
-    language = get_language(database_, language_pack_, language_code);
-    version = language == nullptr ? static_cast<int32>(-1) : language->version_.load();
-    if (version == -1) {
-      return load_empty_language_pack(language_code);
-    }
-  } else {
-    language_code = language_code_;
-  }
-  if (is_custom_language_code(language_code) || new_version <= version) {
-    return;
-  }
-
-  LOG(INFO) << (is_base ? "Base" : "Main") << " language pack " << language_code << " version has changed to "
-            << new_version;
-  send_language_get_difference_query(language, std::move(language_code), version, Auto());
-}
-
-void LanguagePackManager::send_language_get_difference_query(Language *language, string language_code, int32 version,
-                                                             Promise<Unit> &&promise) {
-  std::lock_guard<std::mutex> lock(language->mutex_);
-  language->get_difference_queries_.push_back(std::move(promise));
-  if (language->has_get_difference_query_) {
-    return;
-  }
-
-  CHECK(language->get_difference_queries_.size() == 1);
-  language->has_get_difference_query_ = true;
-  auto request_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code,
-                              from_version = version](Result<NetQueryPtr> r_query) mutable {
-        auto r_result = fetch_result<telegram_api::langpack_getDifference>(std::move(r_query));
-        if (r_result.is_error()) {
-          send_closure(actor_id, &LanguagePackManager::on_failed_get_difference, std::move(language_pack),
-                       std::move(language_code), r_result.move_as_error());
-          return;
-        }
-
-        auto result = r_result.move_as_ok();
-        LOG(INFO) << "Receive language pack difference for language pack " << result->lang_code_ << " from version "
-                  << result->from_version_ << " with version " << result->version_ << " of size "
-                  << result->strings_.size();
-        to_lower_inplace(result->lang_code_);
-        LOG_IF(ERROR, result->lang_code_ != language_code)
-            << "Receive strings for " << result->lang_code_ << " instead of " << language_code;
-        LOG_IF(ERROR, result->from_version_ != from_version)
-            << "Receive strings from " << result->from_version_ << " instead of " << from_version;
-        send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
-                     std::move(language_code), result->version_, true, vector<string>(), std::move(result->strings_),
-                     Promise<td_api::object_ptr<td_api::languagePackStrings>>());
-      });
-  send_with_promise(G()->net_query_creator().create_unauth(
-                        telegram_api::langpack_getDifference(language_pack_, language_code, version)),
-                    std::move(request_promise));
-}
-
-void LanguagePackManager::on_language_pack_too_long(string language_code) {
-  if (language_code == language_code_) {
-    return on_language_pack_version_changed(false, std::numeric_limits<int32>::max());
-  }
-  if (language_code == base_language_code_) {
-    return on_language_pack_version_changed(true, std::numeric_limits<int32>::max());
-  }
-  LOG(WARNING) << "Receive languagePackTooLong for language " << language_code << ", but use language "
-               << language_code_ << " with base language " << base_language_code_;
-}
-
-void LanguagePackManager::on_update_language_pack(tl_object_ptr<telegram_api::langPackDifference> difference) {
-  LOG(INFO) << "Receive update language pack difference for language pack " << difference->lang_code_
-            << " from version " << difference->from_version_ << " with version " << difference->version_ << " of size "
-            << difference->strings_.size();
-  to_lower_inplace(difference->lang_code_);
-  if (language_code_.empty()) {
-    LOG(INFO) << "Ignore difference for language pack " << difference->lang_code_
-              << ", because have no used language pack";
-    return;
-  }
-  if (language_pack_.empty()) {
-    LOG(WARNING) << "Ignore difference for language pack " << difference->lang_code_
-                 << ", because localization target is not set";
-    return;
-  }
-  if (difference->lang_code_ != language_code_ && difference->lang_code_ != base_language_code_) {
-    LOG(WARNING) << "Ignore difference for language pack " << difference->lang_code_ << ", because using language pack "
-                 << language_code_ << " based on " << base_language_code_;
-    return;
-  }
-  if (is_custom_language_code(difference->lang_code_) || difference->lang_code_.empty()) {
-    LOG(ERROR) << "Ignore difference for language pack " << difference->lang_code_;
-    return;
-  }
-
-  Language *language = get_language(database_, language_pack_, difference->lang_code_);
-  int32 version = language == nullptr ? static_cast<int32>(-1) : language->version_.load();
-  if (difference->version_ <= version) {
-    LOG(INFO) << "Skip applying already applied language pack updates";
-    return;
-  }
-  if (version == -1 || version < difference->from_version_) {
-    LOG(INFO) << "Can't apply language pack difference";
-    return on_language_pack_version_changed(difference->lang_code_ != language_code_, difference->version_);
-  }
-
-  on_get_language_pack_strings(language_pack_, std::move(difference->lang_code_), difference->version_, true,
-                               vector<string>(), std::move(difference->strings_),
-                               Promise<td_api::object_ptr<td_api::languagePackStrings>>());
-}
-
-void LanguagePackManager::inc_generation() {
-  G()->set_option_empty("language_pack_version");
-  G()->set_option_empty("base_language_pack_version");
-
-  if (!language_pack_.empty() && !language_code_.empty()) {
-    LOG(INFO) << "Add main language " << language_code_;
-    CHECK(check_language_code_name(language_code_));
-    auto language = add_language(database_, language_pack_, language_code_);
-    on_language_pack_version_changed(false, std::numeric_limits<int32>::max());
-    repair_chosen_language_info();
-
-    {
-      std::lock_guard<std::mutex> lock(language->mutex_);
-      base_language_code_ = language->base_language_code_;
-    }
-    if (!check_language_code_name(base_language_code_)) {
-      LOG(ERROR) << "Have invalid base language pack ID \"" << base_language_code_ << '"';
-      base_language_code_.clear();
-    }
-    if (!base_language_code_.empty()) {
-      CHECK(base_language_code_ != language_code_);
-      LOG(INFO) << "Add base language " << base_language_code_;
-      add_language(database_, language_pack_, base_language_code_);
-      on_language_pack_version_changed(true, std::numeric_limits<int32>::max());
-    }
-  }
-  LOG(INFO) << "Finished to apply new language pack";
-}
-
-LanguagePackManager::Language *LanguagePackManager::get_language(LanguageDatabase *database,
-                                                                 const string &language_pack,
-                                                                 const string &language_code) {
-  std::unique_lock<std::mutex> lock(database->mutex_);
-  auto it = database->language_packs_.find(language_pack);
-  if (it == database->language_packs_.end()) {
-    return nullptr;
-  }
-  LanguagePack *pack = it->second.get();
-  lock.unlock();
-  return get_language(pack, language_code);
-}
-
-LanguagePackManager::Language *LanguagePackManager::get_language(LanguagePack *language_pack,
-                                                                 const string &language_code) {
-  CHECK(language_pack != nullptr);
-  std::lock_guard<std::mutex> lock(language_pack->mutex_);
-  auto it = language_pack->languages_.find(language_code);
-  if (it == language_pack->languages_.end()) {
-    return nullptr;
-  }
-  return it->second.get();
-}
-
-static string get_database_table_name(const string &language_pack, const string &language_code) {
-  return PSTRING() << "\"kv_" << language_pack << '_' << language_code << '"';
-}
-
-LanguagePackManager::Language *LanguagePackManager::add_language(LanguageDatabase *database,
-                                                                 const string &language_pack,
-                                                                 const string &language_code) {
-  std::lock_guard<std::mutex> packs_lock(database->mutex_);
-  auto pack_it = database->language_packs_.find(language_pack);
-  if (pack_it == database->language_packs_.end()) {
-    auto pack = make_unique<LanguagePack>();
-    if (!database->database_.empty()) {
-      pack->pack_kv_.init_with_connection(database->database_.clone(), get_database_table_name(language_pack, "0"))
-          .ensure();
-      bool need_drop_server = false;
-      for (auto &lang : pack->pack_kv_.get_all()) {
-        auto as_bool = [](Slice data) {
-          if (data == "true") {
-            return true;
-          }
-          if (data != "false") {
-            LOG(ERROR) << "Have invalid boolean value \"" << data << "\" in the database";
-          }
-          return false;
-        };
-
-        if (lang.first == "!server") {
-          // legacy info format, drop cache
-          need_drop_server = true;
-          continue;
-        }
-        if (lang.first == "!server2") {
-          auto all_infos = full_split(lang.second, '\x00');
-          if (all_infos.size() % 11 == 0) {
-            for (size_t i = 0; i < all_infos.size(); i += 11) {
-              if (all_infos[i].empty()) {
-                LOG(ERROR) << "Have empty info about a language pack";
-                continue;
-              }
-              LanguageInfo info;
-              info.name_ = std::move(all_infos[i + 1]);
-              info.native_name_ = std::move(all_infos[i + 2]);
-              info.base_language_code_ = std::move(all_infos[i + 3]);
-              info.plural_code_ = std::move(all_infos[i + 4]);
-              info.is_official_ = as_bool(all_infos[i + 5]);
-              info.is_rtl_ = as_bool(all_infos[i + 6]);
-              info.is_beta_ = as_bool(all_infos[i + 7]);
-              info.is_from_database_ = true;
-              info.total_string_count_ = to_integer<int32>(all_infos[i + 8]);
-              info.translated_string_count_ = to_integer<int32>(all_infos[i + 9]);
-              info.translation_url_ = std::move(all_infos[i + 10]);
-              pack->all_server_language_pack_infos_.emplace(all_infos[i], td::make_unique<LanguageInfo>(info));
-              pack->server_language_pack_infos_.emplace_back(std::move(all_infos[i]), std::move(info));
-            }
-          } else {
-            LOG(ERROR) << "Have wrong language pack info \"" << lang.second << "\" in the database";
-          }
-          continue;
-        }
-
-        auto all_infos = full_split(lang.second, '\x00');
-        if (all_infos.size() < 2) {
-          LOG(ERROR) << "Have wrong custom language pack info \"" << lang.second << '"';
-          continue;
-        }
-        auto &info = pack->custom_language_pack_infos_[lang.first];
-        info.name_ = std::move(all_infos[0]);
-        info.native_name_ = std::move(all_infos[1]);
-        if (all_infos.size() > 2) {
-          CHECK(all_infos.size() == 10);
-          info.base_language_code_ = std::move(all_infos[2]);
-          info.plural_code_ = std::move(all_infos[3]);
-          info.is_official_ = as_bool(all_infos[4]);
-          info.is_rtl_ = as_bool(all_infos[5]);
-          info.is_beta_ = as_bool(all_infos[6]);
-          info.total_string_count_ = to_integer<int32>(all_infos[7]);
-          info.translated_string_count_ = to_integer<int32>(all_infos[8]);
-          info.translation_url_ = std::move(all_infos[9]);
-        }
-        info.is_from_database_ = true;
-      }
-      if (need_drop_server) {
-        LOG(INFO) << "Drop old server language pack info cache";
-        pack->pack_kv_.erase("!server");
-      }
-    }
-    pack_it = database->language_packs_.emplace(language_pack, std::move(pack)).first;
-  }
-  LanguagePack *pack = pack_it->second.get();
-
-  std::lock_guard<std::mutex> languages_lock(pack->mutex_);
-  auto code_it = pack->languages_.find(language_code);
-  if (code_it == pack->languages_.end()) {
-    auto language = make_unique<Language>();
-    if (!database->database_.empty()) {
-      language->kv_
-          .init_with_connection(database->database_.clone(), get_database_table_name(language_pack, language_code))
-          .ensure();
-      language->version_ = load_database_language_version(&language->kv_);
-      language->key_count_ = load_database_language_key_count(&language->kv_);
-      language->base_language_code_ = load_database_language_base_language_code(&language->kv_);
-      LOG(INFO) << "Loaded language " << language_code << " with version " << language->version_.load()
-                << ", key count " << language->key_count_.load() << " and base language "
-                << language->base_language_code_;
-    }
-    code_it = pack->languages_.emplace(language_code, std::move(language)).first;
-  }
-  return code_it->second.get();
-}
-
-bool LanguagePackManager::language_has_string_unsafe(const Language *language, const string &key) {
-  return language->ordinary_strings_.count(key) != 0 || language->pluralized_strings_.count(key) != 0 ||
-         language->deleted_strings_.count(key) != 0;
-}
-
-bool LanguagePackManager::language_has_strings(Language *language, const vector<string> &keys) {
-  if (language == nullptr) {
-    return false;
-  }
-
-  std::lock_guard<std::mutex> lock(language->mutex_);
-  if (language->is_full_) {
-    return true;
-  }
-  if (keys.empty()) {
-    return false;  // language is already checked to be not full
-  }
-  for (auto &key : keys) {
-    if (!language_has_string_unsafe(language, key)) {
-      return false;
-    }
-  }
-  return true;
-}
-
-void LanguagePackManager::load_language_string_unsafe(Language *language, const string &key, const string &value) {
-  CHECK(is_valid_key(key));
-  if (value[0] == '1') {
-    language->ordinary_strings_.emplace(key, value.substr(1));
-    return;
-  }
-
-  if (value[0] == '2') {
-    auto all = full_split(Slice(value).substr(1), '\x00');
-    if (all.size() == 6) {
-      language->pluralized_strings_.emplace(
-          key, td::make_unique<PluralizedString>(all[0].str(), all[1].str(), all[2].str(), all[3].str(), all[4].str(),
-                                                 all[5].str()));
-      return;
-    }
-  }
-
-  LOG_IF(ERROR, !value.empty() && value != "3") << "Have invalid value \"" << value << '"';
-  if (!language->is_full_) {
-    language->deleted_strings_.insert(key);
-  }
-}
-
-bool LanguagePackManager::load_language_strings(LanguageDatabase *database, Language *language,
-                                                const vector<string> &keys) {
-  if (language == nullptr) {
-    return false;
-  }
-
-  std::lock_guard<std::mutex> database_lock(database->mutex_);
-  std::lock_guard<std::mutex> language_lock(language->mutex_);
-  if (language->is_full_) {
-    LOG(DEBUG) << "The language pack is already full in memory";
-    return true;
-  }
-  if (language->kv_.empty()) {
-    LOG(DEBUG) << "The language pack has no database";
-    return false;
-  }
-  LOG(DEBUG) << "Begin to load a language pack from database";
-  if (keys.empty()) {
-    if (language->version_ == -1 && language->was_loaded_full_) {
-      LOG(DEBUG) << "The language pack has already been loaded";
-      return false;
-    }
-
-    auto all_strings = language->kv_.get_all();
-    for (auto &str : all_strings) {
-      if (str.first[0] == '!') {
-        continue;
-      }
-
-      if (!language_has_string_unsafe(language, str.first)) {
-        LOG(DEBUG) << "Load string with key " << str.first << " from database";
-        load_language_string_unsafe(language, str.first, str.second);
-      }
-    }
-    language->was_loaded_full_ = true;
-
-    if (language->version_ == -1) {
-      return false;
-    }
-
-    language->is_full_ = true;
-    language->deleted_strings_.clear();
-    return true;
-  }
-
-  bool have_all = true;
-  for (auto &key : keys) {
-    if (!language_has_string_unsafe(language, key)) {
-      auto value = language->kv_.get(key);
-      if (value.empty()) {
-        if (language->version_ == -1) {
-          LOG(DEBUG) << "Have no string with key " << key << " in the database";
-          have_all = false;
-          continue;
-        }
-
-        // have full language in the database, so this string is just deleted
-      }
-      LOG(DEBUG) << "Load string with key " << key << " from database";
-      load_language_string_unsafe(language, key, value);
-    }
-  }
-  return have_all;
-}
-
-td_api::object_ptr<td_api::LanguagePackStringValue> LanguagePackManager::get_language_pack_string_value_object(
-    const string &value) {
-  return td_api::make_object<td_api::languagePackStringValueOrdinary>(value);
-}
-
-td_api::object_ptr<td_api::LanguagePackStringValue> LanguagePackManager::get_language_pack_string_value_object(
-    const PluralizedString &value) {
-  return td_api::make_object<td_api::languagePackStringValuePluralized>(
-      value.zero_value_, value.one_value_, value.two_value_, value.few_value_, value.many_value_, value.other_value_);
-}
-
-td_api::object_ptr<td_api::LanguagePackStringValue> LanguagePackManager::get_language_pack_string_value_object() {
-  return td_api::make_object<td_api::languagePackStringValueDeleted>();
-}
-
-td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(
-    const string &key, const string &value) {
-  return td_api::make_object<td_api::languagePackString>(key, get_language_pack_string_value_object(value));
-}
-
-td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(
-    const string &key, const PluralizedString &value) {
-  return td_api::make_object<td_api::languagePackString>(key, get_language_pack_string_value_object(value));
-}
-
-td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(const string &key) {
-  return td_api::make_object<td_api::languagePackString>(key, get_language_pack_string_value_object());
-}
-
-td_api::object_ptr<td_api::LanguagePackStringValue> LanguagePackManager::get_language_pack_string_value_object(
-    const Language *language, const string &key) {
-  CHECK(language != nullptr);
-  auto ordinary_it = language->ordinary_strings_.find(key);
-  if (ordinary_it != language->ordinary_strings_.end()) {
-    return get_language_pack_string_value_object(ordinary_it->second);
-  }
-  auto pluralized_it = language->pluralized_strings_.find(key);
-  if (pluralized_it != language->pluralized_strings_.end()) {
-    return get_language_pack_string_value_object(*pluralized_it->second);
-  }
-  LOG_IF(ERROR, !language->is_full_ && language->deleted_strings_.count(key) == 0) << "Have no string for key " << key;
-  return get_language_pack_string_value_object();
-}
-
-td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(
-    const Language *language, const string &key) {
-  return td_api::make_object<td_api::languagePackString>(key, get_language_pack_string_value_object(language, key));
-}
-
-td_api::object_ptr<td_api::languagePackStrings> LanguagePackManager::get_language_pack_strings_object(
-    Language *language, const vector<string> &keys) {
-  CHECK(language != nullptr);
-
-  std::lock_guard<std::mutex> lock(language->mutex_);
-  vector<td_api::object_ptr<td_api::languagePackString>> strings;
-  if (keys.empty()) {
-    for (auto &str : language->ordinary_strings_) {
-      strings.push_back(get_language_pack_string_object(str.first, str.second));
-    }
-    for (auto &str : language->pluralized_strings_) {
-      strings.push_back(get_language_pack_string_object(str.first, *str.second));
-    }
-  } else {
-    for (auto &key : keys) {
-      strings.push_back(get_language_pack_string_object(language, key));
-    }
-  }
-
-  return td_api::make_object<td_api::languagePackStrings>(std::move(strings));
-}
-
-void LanguagePackManager::get_languages(bool only_local,
-                                        Promise<td_api::object_ptr<td_api::localizationTargetInfo>> promise) {
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-
-  if (only_local) {
-    return on_get_languages(vector<tl_object_ptr<telegram_api::langPackLanguage>>(), language_pack_, true,
-                            std::move(promise));
-  }
-
-  auto request_promise = PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_,
-                                                 promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-    TRY_RESULT_PROMISE(promise, result, fetch_result<telegram_api::langpack_getLanguages>(std::move(r_query)));
-    send_closure(actor_id, &LanguagePackManager::on_get_languages, std::move(result), std::move(language_pack), false,
-                 std::move(promise));
-  });
-  send_with_promise(G()->net_query_creator().create_unauth(telegram_api::langpack_getLanguages(language_pack_)),
-                    std::move(request_promise));
-}
-
-void LanguagePackManager::search_language_info(string language_code,
-                                               Promise<td_api::object_ptr<td_api::languagePackInfo>> promise) {
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-
-  auto request_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code,
-                              promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-        TRY_RESULT_PROMISE(promise, result, fetch_result<telegram_api::langpack_getLanguage>(std::move(r_query)));
-        LOG(INFO) << "Receive " << to_string(result);
-        send_closure(actor_id, &LanguagePackManager::on_get_language, std::move(result), std::move(language_pack),
-                     std::move(language_code), std::move(promise));
-      });
-  send_with_promise(
-      G()->net_query_creator().create_unauth(telegram_api::langpack_getLanguage(language_pack_, language_code)),
-      std::move(request_promise));
-}
-
-void LanguagePackManager::repair_chosen_language_info() {
-  CHECK(!language_pack_.empty() && !language_code_.empty());
-  if (is_custom_language_code(language_code_)) {
-    return;
-  }
-
-  std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-  auto pack_it = database_->language_packs_.find(language_pack_);
-  CHECK(pack_it != database_->language_packs_.end());
-
-  LanguagePack *pack = pack_it->second.get();
-  std::lock_guard<std::mutex> languages_lock(pack->mutex_);
-  for (auto &server_info : pack->server_language_pack_infos_) {
-    if (server_info.first == language_code_) {
-      return;
-    }
-  }
-
-  LOG(INFO) << "Repair info about language " << language_code_;
-  search_language_info(language_code_, Auto());
-}
-
-td_api::object_ptr<td_api::languagePackInfo> LanguagePackManager::get_language_pack_info_object(
-    const string &language_code, const LanguageInfo &info) {
-  return td_api::make_object<td_api::languagePackInfo>(language_code, info.base_language_code_, info.name_,
-                                                       info.native_name_, info.plural_code_, info.is_official_,
-                                                       info.is_rtl_, info.is_beta_, false, info.total_string_count_,
-                                                       info.translated_string_count_, 0, info.translation_url_);
-}
-
-string LanguagePackManager::get_language_info_string(const LanguageInfo &info) {
-  return PSTRING() << info.name_ << '\x00' << info.native_name_ << '\x00' << info.base_language_code_ << '\x00'
-                   << info.plural_code_ << '\x00' << info.is_official_ << '\x00' << info.is_rtl_ << '\x00'
-                   << info.is_beta_ << '\x00' << info.total_string_count_ << '\x00' << info.translated_string_count_
-                   << '\x00' << info.translation_url_;
-}
-
-void LanguagePackManager::on_get_language_info(const string &language_pack,
-                                               td_api::languagePackInfo *language_pack_info) {
-  CHECK(language_pack_info != nullptr);
-  auto language = add_language(database_, language_pack, language_pack_info->id_);
-  language_pack_info->local_string_count_ = language->key_count_;
-  SqliteKeyValue *kv = nullptr;
-  bool was_updated_base_language_code = false;
-  {
-    std::lock_guard<std::mutex> lock(language->mutex_);
-    if (language_pack_info->base_language_pack_id_ != language->base_language_code_) {
-      language->base_language_code_ = language_pack_info->base_language_pack_id_;
-      if (language_pack == language_pack_ && language_pack_info->id_ == language_code_) {
-        base_language_code_ = language->base_language_code_;
-        was_updated_base_language_code = true;
-      }
-      if (!language->kv_.empty()) {
-        kv = &language->kv_;
-      }
-    }
-  }
-  if (was_updated_base_language_code) {
-    G()->set_option_empty("base_language_pack_version");
-    if (!base_language_code_.empty()) {
-      add_language(database_, language_pack_, base_language_code_);
-      on_language_pack_version_changed(true, std::numeric_limits<int32>::max());
-    }
-  }
-  if (kv != nullptr) {
-    std::lock_guard<std::mutex> lock(database_->mutex_);
-    kv->set("!base_language_code", language_pack_info->base_language_pack_id_);
-  }
-}
-
-void LanguagePackManager::save_server_language_pack_infos(LanguagePack *pack) {
-  // mutexes are locked by the caller
-  if (pack->pack_kv_.empty()) {
-    return;
-  }
-
-  LOG(INFO) << "Save changes server language pack infos";
-  vector<string> all_strings;
-  all_strings.reserve(2 * pack->server_language_pack_infos_.size());
-  for (auto &info : pack->server_language_pack_infos_) {
-    all_strings.push_back(info.first);
-    all_strings.push_back(get_language_info_string(info.second));
-  }
-
-  pack->pack_kv_.set("!server2", implode(all_strings, '\x00'));
-}
-
-void LanguagePackManager::on_get_languages(vector<tl_object_ptr<telegram_api::langPackLanguage>> languages,
-                                           string language_pack, bool only_local,
-                                           Promise<td_api::object_ptr<td_api::localizationTargetInfo>> promise) {
-  auto results = td_api::make_object<td_api::localizationTargetInfo>();
-  FlatHashSet<string> added_languages;
-
-  auto add_language_info = [&results, &added_languages](const string &language_code, const LanguageInfo &info,
-                                                        bool is_installed) {
-    if (!language_code.empty() && added_languages.insert(language_code).second) {
-      results->language_packs_.push_back(get_language_pack_info_object(language_code, info));
-      results->language_packs_.back()->is_installed_ = is_installed;
-    }
-  };
-
-  {
-    std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-    auto pack_it = database_->language_packs_.find(language_pack);
-    if (pack_it != database_->language_packs_.end()) {
-      LanguagePack *pack = pack_it->second.get();
-      std::lock_guard<std::mutex> pack_lock(pack->mutex_);
-      for (auto &info : pack->custom_language_pack_infos_) {
-        add_language_info(info.first, info.second, true);
-      }
-      if (only_local) {
-        for (auto &info : pack->server_language_pack_infos_) {
-          add_language_info(info.first, info.second, false);
-        }
-      }
-    }
-  }
-
-  vector<std::pair<string, LanguageInfo>> all_server_infos;
-  for (auto &language : languages) {
-    auto r_info = get_language_info(language.get());
-    if (r_info.is_error()) {
-      continue;
-    }
-
-    add_language_info(language->lang_code_, r_info.ok(), false);
-    all_server_infos.emplace_back(std::move(language->lang_code_), r_info.move_as_ok());
-  }
-
-  for (auto &language_pack_info : results->language_packs_) {
-    on_get_language_info(language_pack, language_pack_info.get());
-  }
-
-  if (!only_local) {
-    std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-    auto pack_it = database_->language_packs_.find(language_pack);
-    if (pack_it != database_->language_packs_.end()) {
-      LanguagePack *pack = pack_it->second.get();
-      std::lock_guard<std::mutex> pack_lock(pack->mutex_);
-      if (pack->server_language_pack_infos_ != all_server_infos) {
-        for (auto &info : all_server_infos) {
-          pack->all_server_language_pack_infos_[info.first] = td::make_unique<LanguageInfo>(info.second);
-        }
-        pack->server_language_pack_infos_ = std::move(all_server_infos);
-
-        save_server_language_pack_infos(pack);
-      }
-    }
-  }
-  promise.set_value(std::move(results));
-}
-
-void LanguagePackManager::on_get_language(tl_object_ptr<telegram_api::langPackLanguage> lang_pack_language,
-                                          string language_pack, string language_code,
-                                          Promise<td_api::object_ptr<td_api::languagePackInfo>> promise) {
-  CHECK(lang_pack_language != nullptr);
-  TRY_RESULT_PROMISE(promise, language_info, get_language_info(lang_pack_language.get()));
-  auto result = get_language_pack_info_object(lang_pack_language->lang_code_, language_info);
-
-  on_get_language_info(language_pack, result.get());
-
-  // updating languages cache
-  std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-  auto pack_it = database_->language_packs_.find(language_pack);
-  if (pack_it != database_->language_packs_.end()) {
-    LanguagePack *pack = pack_it->second.get();
-    std::lock_guard<std::mutex> pack_lock(pack->mutex_);
-
-    result->is_installed_ = pack->custom_language_pack_infos_.count(lang_pack_language->lang_code_) != 0 ||
-                            pack->custom_language_pack_infos_.count(language_code) != 0;
-
-    bool is_changed = false;
-    for (auto &info : pack->server_language_pack_infos_) {
-      if (info.first == lang_pack_language->lang_code_ || info.first == language_code) {
-        if (!(info.second == language_info)) {
-          LOG(INFO) << "Language pack " << info.first << " was changed";
-          is_changed = true;
-          info.second = language_info;
-        }
-      }
-    }
-    pack->all_server_language_pack_infos_[lang_pack_language->lang_code_] =
-        td::make_unique<LanguageInfo>(std::move(language_info));
-
-    if (is_changed) {
-      save_server_language_pack_infos(pack);
-    }
-  } else {
-    LOG(ERROR) << "Failed to find localization target " << language_pack;
-  }
-
-  promise.set_value(std::move(result));
-}
-
-void LanguagePackManager::get_language_pack_strings(string language_code, vector<string> keys,
-                                                    Promise<td_api::object_ptr<td_api::languagePackStrings>> promise) {
-  if (!check_language_code_name(language_code) || language_code.empty()) {
-    return promise.set_error(Status::Error(400, "Language pack ID is invalid"));
-  }
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-  for (auto &key : keys) {
-    if (!is_valid_key(key)) {
-      return promise.set_error(Status::Error(400, "Invalid key name"));
-    }
-  }
-
-  Language *language = add_language(database_, language_pack_, language_code);
-  if (language_has_strings(language, keys)) {
-    return promise.set_value(get_language_pack_strings_object(language, keys));
-  }
-  if (load_language_strings(database_, language, keys)) {
-    return promise.set_value(get_language_pack_strings_object(language, keys));
-  }
-
-  if (is_custom_language_code(language_code)) {
-    return promise.set_error(Status::Error(400, "Custom language pack not found"));
-  }
-
-  if (keys.empty()) {
-    auto &queries = get_all_language_pack_strings_queries_[language_pack_][language_code].queries_;
-    queries.push_back(std::move(promise));
-    if (queries.size() != 1) {
-      // send request only once
-      return;
-    }
-
-    auto result_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code](
-                                   Result<td_api::object_ptr<td_api::languagePackStrings>> r_strings) mutable {
-          send_closure(actor_id, &LanguagePackManager::on_get_all_language_pack_strings, std::move(language_pack),
-                       std::move(language_code), std::move(r_strings));
-        });
-    auto request_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code,
-                                promise = std::move(result_promise)](Result<NetQueryPtr> r_query) mutable {
-          TRY_RESULT_PROMISE(promise, result, fetch_result<telegram_api::langpack_getLangPack>(std::move(r_query)));
-          to_lower_inplace(result->lang_code_);
-          LOG(INFO) << "Receive language pack " << result->lang_code_ << " from version " << result->from_version_
-                    << " with version " << result->version_ << " of size " << result->strings_.size();
-          LOG_IF(ERROR, result->lang_code_ != language_code)
-              << "Receive strings for " << result->lang_code_ << " instead of " << language_code;
-          LOG_IF(ERROR, result->from_version_ != 0) << "Receive language pack from version " << result->from_version_;
-          send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
-                       std::move(language_code), result->version_, false, vector<string>(), std::move(result->strings_),
-                       std::move(promise));
-        });
-    send_with_promise(
-        G()->net_query_creator().create_unauth(telegram_api::langpack_getLangPack(language_pack_, language_code)),
-        std::move(request_promise));
-  } else {
-    auto request_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code, keys,
-                                promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-          TRY_RESULT_PROMISE(promise, result, fetch_result<telegram_api::langpack_getStrings>(std::move(r_query)));
-          send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
-                       std::move(language_code), -1, false, std::move(keys), std::move(result), std::move(promise));
-        });
-    send_with_promise(G()->net_query_creator().create_unauth(
-                          telegram_api::langpack_getStrings(language_pack_, language_code, std::move(keys))),
-                      std::move(request_promise));
-  }
-}
-
-void LanguagePackManager::load_empty_language_pack(const string &language_code) {
-  if (is_custom_language_code(language_code)) {
-    return;
-  }
-  get_language_pack_strings(language_code, vector<string>(), Auto());
-}
-
-void LanguagePackManager::synchronize_language_pack(string language_code, Promise<Unit> promise) {
-  if (!check_language_code_name(language_code) || language_code.empty()) {
-    return promise.set_error(Status::Error(400, "Language pack ID is invalid"));
-  }
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-  if (is_custom_language_code(language_code)) {
-    return promise.set_value(Unit());
-  }
-
-  Language *language = add_language(database_, language_pack_, language_code);
-  load_language_strings(database_, language, vector<string>());
-
-  int32 version = language->version_.load();
-  if (version == -1) {
-    version = 0;
-  }
-  send_language_get_difference_query(language, std::move(language_code), version, std::move(promise));
-}
-
-static td_api::object_ptr<td_api::LanguagePackStringValue> copy_language_pack_string_value(
-    const td_api::LanguagePackStringValue *value) {
-  switch (value->get_id()) {
-    case td_api::languagePackStringValueOrdinary::ID: {
-      auto old_value = static_cast<const td_api::languagePackStringValueOrdinary *>(value);
-      return make_tl_object<td_api::languagePackStringValueOrdinary>(old_value->value_);
-    }
-    case td_api::languagePackStringValuePluralized::ID: {
-      auto old_value = static_cast<const td_api::languagePackStringValuePluralized *>(value);
-      return make_tl_object<td_api::languagePackStringValuePluralized>(
-          std::move(old_value->zero_value_), std::move(old_value->one_value_), std::move(old_value->two_value_),
-          std::move(old_value->few_value_), std::move(old_value->many_value_), std::move(old_value->other_value_));
-    }
-    case td_api::languagePackStringValueDeleted::ID:
-      return make_tl_object<td_api::languagePackStringValueDeleted>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-void LanguagePackManager::on_get_all_language_pack_strings(
-    string language_pack, string language_code, Result<td_api::object_ptr<td_api::languagePackStrings>> r_strings) {
-  auto &queries = get_all_language_pack_strings_queries_[language_pack][language_code].queries_;
-  auto promises = std::move(queries);
-  CHECK(!promises.empty());
-  auto it = get_all_language_pack_strings_queries_.find(language_pack);
-  it->second.erase(language_code);
-  if (it->second.empty()) {
-    get_all_language_pack_strings_queries_.erase(it);
-  }
-
-  if (r_strings.is_error()) {
-    fail_promises(promises, r_strings.move_as_error());
-    return;
-  }
-
-  auto strings = r_strings.move_as_ok();
-  size_t left_non_empty_promise_count = 0;
-  for (auto &promise : promises) {
-    if (promise) {
-      left_non_empty_promise_count++;
-    }
-  }
-  for (auto &promise : promises) {
-    if (promise) {
-      if (left_non_empty_promise_count == 1) {
-        LOG(DEBUG) << "Set last non-empty promise";
-        promise.set_value(std::move(strings));
-      } else {
-        LOG(DEBUG) << "Set non-empty promise";
-        vector<td_api::object_ptr<td_api::languagePackString>> strings_copy;
-        for (auto &result : strings->strings_) {
-          CHECK(result != nullptr);
-          strings_copy.push_back(td_api::make_object<td_api::languagePackString>(
-              result->key_, copy_language_pack_string_value(result->value_.get())));
-        }
-        promise.set_value(td_api::make_object<td_api::languagePackStrings>(std::move(strings_copy)));
-      }
-      left_non_empty_promise_count--;
-    } else {
-      LOG(DEBUG) << "Set empty promise";
-      promise.set_value(nullptr);
-    }
-  }
-  CHECK(left_non_empty_promise_count == 0);
-}
-
-td_api::object_ptr<td_api::Object> LanguagePackManager::get_language_pack_string(const string &database_path,
-                                                                                 const string &language_pack,
-                                                                                 const string &language_code,
-                                                                                 const string &key) {
-  if (!check_language_pack_name(language_pack) || language_pack.empty()) {
-    return td_api::make_object<td_api::error>(400, "Localization target is invalid");
-  }
-  if (!check_language_code_name(language_code) || language_code.empty()) {
-    return td_api::make_object<td_api::error>(400, "Language pack ID is invalid");
-  }
-  if (!is_valid_key(key)) {
-    return td_api::make_object<td_api::error>(400, "Key is invalid");
-  }
-
-  std::unique_lock<std::mutex> language_databases_lock(language_database_mutex_);
-  LanguageDatabase *database = add_language_database(database_path);
-  CHECK(database != nullptr);
-  language_databases_lock.unlock();
-
-  Language *language = add_language(database, language_pack, language_code);
-  vector<string> keys{key};
-  if (language_has_strings(language, keys)) {
-    std::lock_guard<std::mutex> lock(language->mutex_);
-    return get_language_pack_string_value_object(language, key);
-  }
-  if (load_language_strings(database, language, keys)) {
-    std::lock_guard<std::mutex> lock(language->mutex_);
-    return get_language_pack_string_value_object(language, key);
-  }
-  return td_api::make_object<td_api::error>(404, "Not Found");
-}
-
-bool LanguagePackManager::is_valid_key(Slice key) {
-  for (auto c : key) {
-    if (!is_alnum(c) && c != '_' && c != '.' && c != '-') {
-      return false;
-    }
-  }
-  return !key.empty();
-}
-
-void LanguagePackManager::save_strings_to_database(SqliteKeyValue *kv, int32 new_version, bool new_is_full,
-                                                   int32 new_key_count, vector<std::pair<string, string>> &&strings) {
-  LOG(DEBUG) << "Save to database a language pack with new version " << new_version << " and " << strings.size()
-             << " new strings";
-  if (new_version == -1 && strings.empty()) {
-    return;
-  }
-
-  std::lock_guard<std::mutex> lock(database_->mutex_);
-  CHECK(kv != nullptr);
-  if (kv->empty()) {
-    LOG(DEBUG) << "There is no associated database key-value";
-    return;
-  }
-  auto old_version = load_database_language_version(kv);
-  if (old_version > new_version || (old_version == new_version && strings.empty())) {
-    LOG(DEBUG) << "Language pack version doesn't increased from " << old_version;
-    return;
-  }
-
-  kv->begin_write_transaction().ensure();
-  for (const auto &str : strings) {
-    if (!is_valid_key(str.first)) {
-      LOG(ERROR) << "Have invalid key \"" << str.first << '"';
-      continue;
-    }
-
-    if (new_is_full && str.second == "3") {
-      kv->erase(str.first);
-    } else {
-      kv->set(str.first, str.second);
-    }
-    LOG(DEBUG) << "Save language pack string with key " << str.first << " to database";
-  }
-  if (old_version != new_version) {
-    LOG(DEBUG) << "Set language pack version in database to " << new_version;
-    kv->set("!version", to_string(new_version));
-  }
-  if (new_key_count != -1) {
-    LOG(DEBUG) << "Set language pack key count in database to " << new_key_count;
-    kv->set("!key_count", to_string(new_key_count));
-  }
-  kv->commit_transaction().ensure();
-}
-
-void LanguagePackManager::on_get_language_pack_strings(
-    string language_pack, string language_code, int32 version, bool is_diff, vector<string> &&keys,
-    vector<tl_object_ptr<telegram_api::LangPackString>> results,
-    Promise<td_api::object_ptr<td_api::languagePackStrings>> promise) {
-  Language *language = get_language(database_, language_pack, language_code);
-  bool is_version_changed = false;
-  int32 new_database_version = -1;
-  int32 new_key_count = -1;
-  bool new_is_full = false;
-  vector<std::pair<string, string>> database_strings;
-  if (language == nullptr || language->version_ < version || !keys.empty()) {
-    if (language == nullptr) {
-      language = add_language(database_, language_pack, language_code);
-      CHECK(language != nullptr);
-    }
-    load_language_strings(database_, language, keys);
-
-    std::lock_guard<std::mutex> lock(language->mutex_);
-    int32 key_count_delta = 0;
-    if (language->version_ < version || !keys.empty()) {
-      auto is_first = language->version_ == -1;
-      vector<td_api::object_ptr<td_api::languagePackString>> strings;
-      if (language->version_ < version) {
-        LOG(INFO) << "Set language pack " << language_code << " version to " << version;
-        language->version_ = version;
-        new_database_version = version;
-        is_version_changed = true;
-      }
-
-      for (auto &result : results) {
-        CHECK(result != nullptr);
-        switch (result->get_id()) {
-          case telegram_api::langPackString::ID: {
-            auto str = telegram_api::move_object_as<telegram_api::langPackString>(result);
-            if (!is_valid_key(str->key_)) {
-              LOG(ERROR) << "Receive invalid key \"" << str->key_ << '"';
-              break;
-            }
-            auto it = language->ordinary_strings_.find(str->key_);
-            if (it == language->ordinary_strings_.end()) {
-              key_count_delta++;
-              it = language->ordinary_strings_.emplace(str->key_, std::move(str->value_)).first;
-            } else {
-              it->second = std::move(str->value_);
-            }
-            key_count_delta -= static_cast<int32>(language->pluralized_strings_.erase(str->key_));
-            language->deleted_strings_.erase(str->key_);
-            if (is_diff) {
-              strings.push_back(get_language_pack_string_object(it->first, it->second));
-            }
-            database_strings.emplace_back(std::move(str->key_), PSTRING() << '1' << it->second);
-            break;
-          }
-          case telegram_api::langPackStringPluralized::ID: {
-            auto str = telegram_api::move_object_as<telegram_api::langPackStringPluralized>(result);
-            if (!is_valid_key(str->key_)) {
-              LOG(ERROR) << "Receive invalid key \"" << str->key_ << '"';
-              break;
-            }
-            auto value = td::make_unique<PluralizedString>(std::move(str->zero_value_), std::move(str->one_value_),
-                                                           std::move(str->two_value_), std::move(str->few_value_),
-                                                           std::move(str->many_value_), std::move(str->other_value_));
-            auto it = language->pluralized_strings_.find(str->key_);
-            if (it == language->pluralized_strings_.end()) {
-              key_count_delta++;
-              it = language->pluralized_strings_.emplace(str->key_, std::move(value)).first;
-            } else {
-              it->second = std::move(value);
-            }
-            key_count_delta -= static_cast<int32>(language->ordinary_strings_.erase(str->key_));
-            language->deleted_strings_.erase(str->key_);
-            if (is_diff) {
-              strings.push_back(get_language_pack_string_object(it->first, *it->second));
-            }
-            database_strings.emplace_back(
-                std::move(str->key_), PSTRING()
-                                          << '2' << it->second->zero_value_ << '\x00' << it->second->one_value_
-                                          << '\x00' << it->second->two_value_ << '\x00' << it->second->few_value_
-                                          << '\x00' << it->second->many_value_ << '\x00' << it->second->other_value_);
-            break;
-          }
-          case telegram_api::langPackStringDeleted::ID: {
-            auto str = telegram_api::move_object_as<telegram_api::langPackStringDeleted>(result);
-            if (!is_valid_key(str->key_)) {
-              LOG(ERROR) << "Receive invalid key \"" << str->key_ << '"';
-              break;
-            }
-            key_count_delta -= static_cast<int32>(language->ordinary_strings_.erase(str->key_));
-            key_count_delta -= static_cast<int32>(language->pluralized_strings_.erase(str->key_));
-            language->deleted_strings_.insert(str->key_);
-            if (is_diff) {
-              strings.push_back(get_language_pack_string_object(str->key_));
-            }
-            database_strings.emplace_back(std::move(str->key_), "3");
-            break;
-          }
-          default:
-            UNREACHABLE();
-            break;
-        }
-      }
-      if (!language->is_full_) {
-        for (const auto &key : keys) {
-          if (!language_has_string_unsafe(language, key)) {
-            LOG(ERROR) << "Doesn't receive key " << key << " from server";
-            language->deleted_strings_.insert(key);
-            if (is_diff) {
-              strings.push_back(get_language_pack_string_object(key));
-            }
-            database_strings.emplace_back(key, "3");
-          }
-        }
-      }
-
-      if (key_count_delta != 0) {
-        new_key_count = language->key_count_ + key_count_delta;
-        language->key_count_ = new_key_count;
-      }
-
-      if (keys.empty() && !is_diff) {
-        CHECK(new_database_version >= 0);
-        language->is_full_ = true;
-        language->deleted_strings_.clear();
-      }
-      new_is_full = language->is_full_;
-
-      if (is_diff || (new_is_full && is_first)) {
-        send_closure(
-            G()->td(), &Td::send_update,
-            td_api::make_object<td_api::updateLanguagePackStrings>(language_pack, language_code, std::move(strings)));
-      }
-    }
-  }
-  if (is_custom_language_code(language_code) && new_database_version == -1) {
-    new_database_version = 1;
-  }
-
-  save_strings_to_database(&language->kv_, new_database_version, new_is_full, new_key_count,
-                           std::move(database_strings));
-
-  if (is_diff) {
-    CHECK(language != nullptr);
-    vector<Promise<Unit>> get_difference_queries;
-    {
-      std::lock_guard<std::mutex> lock(language->mutex_);
-      if (language->has_get_difference_query_) {
-        language->has_get_difference_query_ = false;
-        get_difference_queries = std::move(language->get_difference_queries_);
-        reset_to_empty(language->get_difference_queries_);
-        is_version_changed = true;
-      }
-    }
-    for (auto &query : get_difference_queries) {
-      query.set_value(Unit());
-    }
-  }
-  if (is_version_changed && language_pack == language_pack_ &&
-      (language_code == language_code_ || language_code == base_language_code_)) {
-    send_closure_later(actor_id(this), &LanguagePackManager::on_language_pack_version_changed,
-                       language_code != language_code_, -1);
-  }
-
-  if (promise) {
-    promise.set_value(get_language_pack_strings_object(language, keys));
-  }
-}
-
-void LanguagePackManager::on_failed_get_difference(string language_pack, string language_code, Status error) {
-  Language *language = get_language(database_, language_pack, language_code);
-  CHECK(language != nullptr);
-  vector<Promise<Unit>> get_difference_queries;
-  {
-    std::lock_guard<std::mutex> lock(language->mutex_);
-    if (language->has_get_difference_query_) {
-      language->has_get_difference_query_ = false;
-      if (language_pack == language_pack_ &&
-          (language_code == language_code_ || language_code == base_language_code_)) {
-        send_closure_later(actor_id(this), &LanguagePackManager::on_language_pack_version_changed,
-                           language_code != language_code_, -1);
-      }
-      get_difference_queries = std::move(language->get_difference_queries_);
-      reset_to_empty(language->get_difference_queries_);
-    }
-  }
-  fail_promises(get_difference_queries, std::move(error));
-}
-
-void LanguagePackManager::add_custom_server_language(string language_code, Promise<Unit> &&promise) {
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-  if (!check_language_code_name(language_code)) {
-    return promise.set_error(Status::Error(400, "Language pack ID must contain only letters, digits and hyphen"));
-  }
-  if (is_custom_language_code(language_code)) {
-    return promise.set_error(
-        Status::Error(400, "Custom local language pack can't be added through addCustomServerLanguagePack"));
-  }
-
-  if (get_language(database_, language_pack_, language_code) == nullptr) {
-    return promise.set_error(Status::Error(400, "Language pack not found"));
-  }
-
-  std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-  auto pack_it = database_->language_packs_.find(language_pack_);
-  CHECK(pack_it != database_->language_packs_.end());
-  LanguagePack *pack = pack_it->second.get();
-  std::lock_guard<std::mutex> pack_lock(pack->mutex_);
-  auto it = pack->all_server_language_pack_infos_.find(language_code);
-  if (it == pack->all_server_language_pack_infos_.end()) {
-    return promise.set_error(Status::Error(400, "Language pack info not found"));
-  }
-  auto &info = pack->custom_language_pack_infos_[language_code];
-  info = *it->second;
-  if (!pack->pack_kv_.empty()) {
-    pack->pack_kv_.set(language_code, get_language_info_string(info));
-  }
-
-  promise.set_value(Unit());
-}
-
-Result<tl_object_ptr<telegram_api::LangPackString>> LanguagePackManager::convert_to_telegram_api(
-    tl_object_ptr<td_api::languagePackString> &&str) {
-  if (str == nullptr) {
-    return Status::Error(400, "Language pack strings must be non-empty");
-  }
-
-  string key = std::move(str->key_);
-  if (!is_valid_key(key)) {
-    return Status::Error(400, "Key is invalid");
-  }
-
-  if (str->value_ == nullptr) {
-    return make_tl_object<telegram_api::langPackStringDeleted>(std::move(key));
-  }
-  switch (str->value_->get_id()) {
-    case td_api::languagePackStringValueOrdinary::ID: {
-      auto value = static_cast<td_api::languagePackStringValueOrdinary *>(str->value_.get());
-      if (!clean_input_string(value->value_)) {
-        return Status::Error(400, "Language pack string value must be encoded in UTF-8");
-      }
-      return make_tl_object<telegram_api::langPackString>(std::move(key), std::move(value->value_));
-    }
-    case td_api::languagePackStringValuePluralized::ID: {
-      auto value = static_cast<td_api::languagePackStringValuePluralized *>(str->value_.get());
-      if (!clean_input_string(value->zero_value_) || !clean_input_string(value->one_value_) ||
-          !clean_input_string(value->two_value_) || !clean_input_string(value->few_value_) ||
-          !clean_input_string(value->many_value_) || !clean_input_string(value->other_value_)) {
-        return Status::Error(400, "Language pack string value must be encoded in UTF-8");
-      }
-      return make_tl_object<telegram_api::langPackStringPluralized>(
-          31, std::move(key), std::move(value->zero_value_), std::move(value->one_value_), std::move(value->two_value_),
-          std::move(value->few_value_), std::move(value->many_value_), std::move(value->other_value_));
-    }
-    case td_api::languagePackStringValueDeleted::ID:
-      // there is no reason to save deleted strings in a custom language pack to database
-      return make_tl_object<telegram_api::langPackStringDeleted>(std::move(key));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-Result<LanguagePackManager::LanguageInfo> LanguagePackManager::get_language_info(
-    telegram_api::langPackLanguage *language) {
-  if (!check_language_code_name(language->lang_code_) || language->lang_code_.empty()) {
-    LOG(ERROR) << "Receive unsupported language pack ID " << language->lang_code_ << " from server";
-    return Status::Error(500, "Unsupported language pack ID");
-  }
-  if (is_custom_language_code(language->lang_code_)) {
-    LOG(ERROR) << "Receive custom language pack ID \"" << language->lang_code_ << "\" from server";
-    return Status::Error(500, "Unallowed custom language pack ID");
-  }
-  to_lower_inplace(language->lang_code_);
-
-  LanguageInfo info;
-  info.name_ = std::move(language->name_);
-  info.native_name_ = std::move(language->native_name_);
-  info.base_language_code_ = std::move(language->base_lang_code_);
-  info.plural_code_ = std::move(language->plural_code_);
-  info.is_official_ = language->official_;
-  info.is_rtl_ = language->rtl_;
-  info.is_beta_ = language->beta_;
-  info.is_from_database_ = false;
-  info.total_string_count_ = language->strings_count_;
-  info.translated_string_count_ = language->translated_count_;
-  info.translation_url_ = language->translations_url_;
-
-  if (!check_language_code_name(info.base_language_code_)) {
-    LOG(ERROR) << "Have invalid base language pack ID \"" << info.base_language_code_ << '"';
-    info.base_language_code_.clear();
-  }
-  if (is_custom_language_code(info.base_language_code_)) {
-    LOG(ERROR) << "Receive custom base language pack ID \"" << info.base_language_code_ << "\" from server";
-    info.base_language_code_.clear();
-  }
-  if (info.base_language_code_ == language->lang_code_) {
-    LOG(ERROR) << "Receive language pack \"" << info.base_language_code_ << "\"based on self";
-    info.base_language_code_.clear();
-  }
-  return std::move(info);
-}
-
-Result<LanguagePackManager::LanguageInfo> LanguagePackManager::get_language_info(
-    td_api::languagePackInfo *language_pack_info) {
-  if (language_pack_info == nullptr) {
-    return Status::Error(400, "Language pack info must be non-empty");
-  }
-
-  if (!clean_input_string(language_pack_info->id_)) {
-    return Status::Error(400, "Language pack ID must be encoded in UTF-8");
-  }
-  if (!clean_input_string(language_pack_info->base_language_pack_id_)) {
-    return Status::Error(400, "Base language pack ID must be encoded in UTF-8");
-  }
-  if (!clean_input_string(language_pack_info->name_)) {
-    return Status::Error(400, "Language pack name must be encoded in UTF-8");
-  }
-  if (!clean_input_string(language_pack_info->native_name_)) {
-    return Status::Error(400, "Language pack native name must be encoded in UTF-8");
-  }
-  if (!clean_input_string(language_pack_info->plural_code_)) {
-    return Status::Error(400, "Language pack plural code must be encoded in UTF-8");
-  }
-  if (!clean_input_string(language_pack_info->translation_url_)) {
-    return Status::Error(400, "Language pack translation URL must be encoded in UTF-8");
-  }
-  if (language_pack_info->total_string_count_ < 0) {
-    language_pack_info->total_string_count_ = 0;
-  }
-  if (language_pack_info->translated_string_count_ < 0) {
-    language_pack_info->translated_string_count_ = 0;
-  }
-  if (!check_language_code_name(language_pack_info->id_)) {
-    return Status::Error(400, "Language pack ID must contain only letters, digits and hyphen");
-  }
-
-  if (is_custom_language_code(language_pack_info->id_)) {
-    language_pack_info->base_language_pack_id_.clear();
-    language_pack_info->is_official_ = false;
-    language_pack_info->is_rtl_ = false;
-    language_pack_info->is_beta_ = false;
-    language_pack_info->translation_url_.clear();
-  }
-
-  LanguageInfo info;
-  info.name_ = std::move(language_pack_info->name_);
-  info.native_name_ = std::move(language_pack_info->native_name_);
-  info.base_language_code_ = std::move(language_pack_info->base_language_pack_id_);
-  info.plural_code_ = std::move(language_pack_info->plural_code_);
-  info.is_official_ = language_pack_info->is_official_;
-  info.is_rtl_ = language_pack_info->is_rtl_;
-  info.is_beta_ = language_pack_info->is_beta_;
-  info.is_from_database_ = true;
-  info.total_string_count_ = language_pack_info->total_string_count_;
-  info.translated_string_count_ = language_pack_info->translated_string_count_;
-  info.translation_url_ = std::move(language_pack_info->translation_url_);
-
-  return std::move(info);
-}
-
-void LanguagePackManager::set_custom_language(td_api::object_ptr<td_api::languagePackInfo> &&language_pack_info,
-                                              vector<tl_object_ptr<td_api::languagePackString>> strings,
-                                              Promise<Unit> &&promise) {
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-
-  TRY_RESULT_PROMISE(promise, language_info, get_language_info(language_pack_info.get()));
-  auto language_code = std::move(language_pack_info->id_);
-  if (!is_custom_language_code(language_code)) {
-    return promise.set_error(Status::Error(400, "Custom language pack ID must begin with 'X'"));
-  }
-
-  vector<tl_object_ptr<telegram_api::LangPackString>> server_strings;
-  for (auto &str : strings) {
-    TRY_RESULT_PROMISE(promise, result, convert_to_telegram_api(std::move(str)));
-    server_strings.push_back(std::move(result));
-  }
-
-  // TODO atomic replace
-  do_delete_language(language_code).ensure();
-  on_get_language_pack_strings(language_pack_, language_code, 1, false, vector<string>(), std::move(server_strings),
-                               Auto());
-  std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-  auto pack_it = database_->language_packs_.find(language_pack_);
-  CHECK(pack_it != database_->language_packs_.end());
-  LanguagePack *pack = pack_it->second.get();
-  std::lock_guard<std::mutex> pack_lock(pack->mutex_);
-  auto &info = pack->custom_language_pack_infos_[language_code];
-  info = std::move(language_info);
-  if (!pack->pack_kv_.empty()) {
-    pack->pack_kv_.set(language_code, get_language_info_string(info));
-  }
-
-  promise.set_value(Unit());
-}
-
-void LanguagePackManager::edit_custom_language_info(td_api::object_ptr<td_api::languagePackInfo> &&language_pack_info,
-                                                    Promise<Unit> &&promise) {
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-
-  TRY_RESULT_PROMISE(promise, language_info, get_language_info(language_pack_info.get()));
-  auto language_code = std::move(language_pack_info->id_);
-  if (!is_custom_language_code(language_code)) {
-    return promise.set_error(Status::Error(400, "Custom language pack ID must begin with 'X'"));
-  }
-
-  std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-  auto pack_it = database_->language_packs_.find(language_pack_);
-  CHECK(pack_it != database_->language_packs_.end());
-  LanguagePack *pack = pack_it->second.get();
-  std::lock_guard<std::mutex> pack_lock(pack->mutex_);
-  auto language_info_it = pack->custom_language_pack_infos_.find(language_code);
-  if (language_info_it == pack->custom_language_pack_infos_.end()) {
-    return promise.set_error(Status::Error(400, "Custom language pack is not found"));
-  }
-  auto &info = language_info_it->second;
-  info = std::move(language_info);
-  if (!pack->pack_kv_.empty()) {
-    pack->pack_kv_.set(language_code, get_language_info_string(info));
-  }
-
-  promise.set_value(Unit());
-}
-
-void LanguagePackManager::set_custom_language_string(string language_code,
-                                                     tl_object_ptr<td_api::languagePackString> str,
-                                                     Promise<Unit> &&promise) {
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-  if (!check_language_code_name(language_code)) {
-    return promise.set_error(Status::Error(400, "Language pack ID must contain only letters, digits and hyphen"));
-  }
-  if (!is_custom_language_code(language_code)) {
-    return promise.set_error(Status::Error(400, "Custom language pack ID must begin with 'X'"));
-  }
-
-  if (get_language(database_, language_pack_, language_code) == nullptr) {
-    return promise.set_error(Status::Error(400, "Custom language pack not found"));
-  }
-  if (str == nullptr) {
-    return promise.set_error(Status::Error(400, "Language pack strings must not be null"));
-  }
-
-  vector<string> keys{str->key_};
-
-  TRY_RESULT_PROMISE(promise, lang_pack_string, convert_to_telegram_api(std::move(str)));
-
-  vector<tl_object_ptr<telegram_api::LangPackString>> server_strings;
-  server_strings.push_back(std::move(lang_pack_string));
-
-  on_get_language_pack_strings(language_pack_, language_code, 1, true, std::move(keys), std::move(server_strings),
-                               Auto());
-  promise.set_value(Unit());
-}
-
-void LanguagePackManager::delete_language(string language_code, Promise<Unit> &&promise) {
-  if (language_pack_.empty()) {
-    return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
-  }
-  if (!check_language_code_name(language_code)) {
-    return promise.set_error(Status::Error(400, "Language pack ID is invalid"));
-  }
-  if (language_code.empty()) {
-    return promise.set_error(Status::Error(400, "Language pack ID is empty"));
-  }
-  if (language_code_ == language_code || base_language_code_ == language_code) {
-    return promise.set_error(Status::Error(400, "Currently used language pack can't be deleted"));
-  }
-
-  auto status = do_delete_language(language_code);
-  if (status.is_error()) {
-    promise.set_error(std::move(status));
-  } else {
-    promise.set_value(Unit());
-  }
-}
-
-Status LanguagePackManager::do_delete_language(const string &language_code) {
-  add_language(database_, language_pack_, language_code);
-
-  std::lock_guard<std::mutex> packs_lock(database_->mutex_);
-  auto pack_it = database_->language_packs_.find(language_pack_);
-  CHECK(pack_it != database_->language_packs_.end());
-  LanguagePack *pack = pack_it->second.get();
-
-  std::lock_guard<std::mutex> languages_lock(pack->mutex_);
-  auto code_it = pack->languages_.find(language_code);
-  CHECK(code_it != pack->languages_.end());
-  auto language = code_it->second.get();
-  if (language->has_get_difference_query_) {
-    return Status::Error(400, "Language pack can't be deleted now, try again later");
-  }
-  if (!language->kv_.empty()) {
-    language->kv_.drop().ignore();
-    CHECK(language->kv_.empty());
-    CHECK(!database_->database_.empty());
-    language->kv_
-        .init_with_connection(database_->database_.clone(), get_database_table_name(language_pack_, language_code))
-        .ensure();
-  }
-  std::lock_guard<std::mutex> language_lock(language->mutex_);
-  language->version_ = -1;
-  language->key_count_ = load_database_language_key_count(&language->kv_);
-  language->is_full_ = false;
-  language->ordinary_strings_.clear();
-  language->pluralized_strings_.clear();
-  language->deleted_strings_.clear();
-
-  if (!pack->pack_kv_.empty()) {
-    pack->pack_kv_.erase(language_code);
-  }
-  pack->custom_language_pack_infos_.erase(language_code);
-
-  return Status::OK();
-}
-
-void LanguagePackManager::on_result(NetQueryPtr query) {
-  auto token = get_link_token();
-  container_.extract(token).set_value(std::move(query));
-}
-
-void LanguagePackManager::send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise) {
-  auto id = container_.create(std::move(promise));
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, id));
-}
-
-void LanguagePackManager::hangup() {
-  container_.for_each(
-      [](auto id, Promise<NetQueryPtr> &promise) { promise.set_error(Global::request_aborted_error()); });
-  stop();
-}
-
-int32 LanguagePackManager::manager_count_ = 0;
-std::mutex LanguagePackManager::language_database_mutex_;
-std::unordered_map<string, unique_ptr<LanguagePackManager::LanguageDatabase>, Hash<string>>
-    LanguagePackManager::language_databases_;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/LanguagePackManager.h b/third-party/td/td/td/telegram/LanguagePackManager.h
deleted file mode 100644
index ae9bad91c7..0000000000
--- a/third-party/td/td/td/telegram/LanguagePackManager.h
+++ /dev/null
@@ -1,201 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <mutex>
-#include <unordered_map>
-#include <utility>
-
-namespace td {
-
-class SqliteKeyValue;
-
-class LanguagePackManager final : public NetQueryCallback {
- public:
-  explicit LanguagePackManager(ActorShared<> parent);
-  LanguagePackManager(const LanguagePackManager &) = delete;
-  LanguagePackManager &operator=(const LanguagePackManager &) = delete;
-  LanguagePackManager(LanguagePackManager &&) = delete;
-  LanguagePackManager &operator=(LanguagePackManager &&) = delete;
-  ~LanguagePackManager() final;
-
-  static bool check_language_pack_name(Slice name);
-
-  static bool check_language_code_name(Slice name);
-
-  static bool is_custom_language_code(Slice language_code);
-
-  string get_main_language_code();
-
-  vector<string> get_used_language_codes();
-
-  void on_language_pack_changed();
-
-  void on_language_code_changed();
-
-  void on_language_pack_version_changed(bool is_base, int32 new_version);
-
-  void on_language_pack_too_long(string language_code);
-
-  void get_languages(bool only_local, Promise<td_api::object_ptr<td_api::localizationTargetInfo>> promise);
-
-  void search_language_info(string language_code, Promise<td_api::object_ptr<td_api::languagePackInfo>> promise);
-
-  void get_language_pack_strings(string language_code, vector<string> keys,
-                                 Promise<td_api::object_ptr<td_api::languagePackStrings>> promise);
-
-  static td_api::object_ptr<td_api::Object> get_language_pack_string(const string &database_path,
-                                                                     const string &language_pack,
-                                                                     const string &language_code, const string &key);
-
-  void synchronize_language_pack(string language_code, Promise<Unit> promise);
-
-  void on_update_language_pack(tl_object_ptr<telegram_api::langPackDifference> difference);
-
-  void add_custom_server_language(string language_code, Promise<Unit> &&promise);
-
-  void set_custom_language(td_api::object_ptr<td_api::languagePackInfo> &&language_pack_info,
-                           vector<tl_object_ptr<td_api::languagePackString>> strings, Promise<Unit> &&promise);
-
-  void edit_custom_language_info(td_api::object_ptr<td_api::languagePackInfo> &&language_pack_info,
-                                 Promise<Unit> &&promise);
-
-  void set_custom_language_string(string language_code, tl_object_ptr<td_api::languagePackString> str,
-                                  Promise<Unit> &&promise);
-
-  void delete_language(string language_code, Promise<Unit> &&promise);
-
- private:
-  struct PluralizedString;
-  struct Language;
-  struct LanguageInfo;
-  struct LanguagePack;
-  struct LanguageDatabase;
-
-  ActorShared<> parent_;
-
-  string language_pack_;
-  string language_code_;
-  string base_language_code_;
-  LanguageDatabase *database_ = nullptr;
-
-  struct PendingQueries {
-    vector<Promise<td_api::object_ptr<td_api::languagePackStrings>>> queries_;
-  };
-
-  FlatHashMap<string, FlatHashMap<string, PendingQueries>> get_all_language_pack_strings_queries_;
-
-  static int32 manager_count_;
-
-  static std::mutex language_database_mutex_;
-  static std::unordered_map<string, unique_ptr<LanguageDatabase>, Hash<string>> language_databases_;
-
-  static LanguageDatabase *add_language_database(string path);
-
-  static Language *get_language(LanguageDatabase *database, const string &language_pack, const string &language_code);
-  static Language *get_language(LanguagePack *language_pack, const string &language_code);
-
-  static Language *add_language(LanguageDatabase *database, const string &language_pack, const string &language_code);
-
-  static bool language_has_string_unsafe(const Language *language, const string &key);
-  static bool language_has_strings(Language *language, const vector<string> &keys);
-
-  static void load_language_string_unsafe(Language *language, const string &key, const string &value);
-  static bool load_language_strings(LanguageDatabase *database, Language *language, const vector<string> &keys);
-
-  static td_api::object_ptr<td_api::LanguagePackStringValue> get_language_pack_string_value_object(const string &value);
-  static td_api::object_ptr<td_api::LanguagePackStringValue> get_language_pack_string_value_object(
-      const PluralizedString &value);
-  static td_api::object_ptr<td_api::LanguagePackStringValue> get_language_pack_string_value_object();
-
-  static td_api::object_ptr<td_api::languagePackString> get_language_pack_string_object(const string &key,
-                                                                                        const string &value);
-  static td_api::object_ptr<td_api::languagePackString> get_language_pack_string_object(const string &key,
-                                                                                        const PluralizedString &value);
-  static td_api::object_ptr<td_api::languagePackString> get_language_pack_string_object(const string &key);
-
-  static td_api::object_ptr<td_api::LanguagePackStringValue> get_language_pack_string_value_object(
-      const Language *language, const string &key);
-
-  static td_api::object_ptr<td_api::languagePackString> get_language_pack_string_object(const Language *language,
-                                                                                        const string &key);
-
-  static td_api::object_ptr<td_api::languagePackStrings> get_language_pack_strings_object(Language *language,
-                                                                                          const vector<string> &keys);
-
-  static td_api::object_ptr<td_api::languagePackInfo> get_language_pack_info_object(const string &language_code,
-                                                                                    const LanguageInfo &info);
-
-  static Result<LanguageInfo> get_language_info(telegram_api::langPackLanguage *language);
-
-  static Result<LanguageInfo> get_language_info(td_api::languagePackInfo *language_pack_info);
-
-  static string get_language_info_string(const LanguageInfo &info);
-
-  static Result<tl_object_ptr<telegram_api::LangPackString>> convert_to_telegram_api(
-      tl_object_ptr<td_api::languagePackString> &&str);
-
-  void inc_generation();
-
-  void repair_chosen_language_info();
-
-  static bool is_valid_key(Slice key);
-
-  void save_strings_to_database(SqliteKeyValue *kv, int32 new_version, bool new_is_full, int32 new_key_count,
-                                vector<std::pair<string, string>> &&strings);
-
-  void load_empty_language_pack(const string &language_code);
-
-  void on_get_language_pack_strings(string language_pack, string language_code, int32 version, bool is_diff,
-                                    vector<string> &&keys, vector<tl_object_ptr<telegram_api::LangPackString>> results,
-                                    Promise<td_api::object_ptr<td_api::languagePackStrings>> promise);
-
-  void on_get_all_language_pack_strings(string language_pack, string language_code,
-                                        Result<td_api::object_ptr<td_api::languagePackStrings>> r_strings);
-
-  void send_language_get_difference_query(Language *language, string language_code, int32 version,
-                                          Promise<Unit> &&promise);
-
-  void on_failed_get_difference(string language_pack, string language_code, Status error);
-
-  void on_get_language_info(const string &language_pack, td_api::languagePackInfo *language_pack_info);
-
-  static void save_server_language_pack_infos(LanguagePack *pack);
-
-  void on_get_languages(vector<tl_object_ptr<telegram_api::langPackLanguage>> languages, string language_pack,
-                        bool only_local, Promise<td_api::object_ptr<td_api::localizationTargetInfo>> promise);
-
-  void on_get_language(tl_object_ptr<telegram_api::langPackLanguage> lang_pack_language, string language_pack,
-                       string language_code, Promise<td_api::object_ptr<td_api::languagePackInfo>> promise);
-
-  Status do_delete_language(const string &language_code);
-
-  void on_result(NetQueryPtr query) final;
-
-  void start_up() final;
-  void hangup() final;
-  void tear_down() final;
-
-  Container<Promise<NetQueryPtr>> container_;
-  void send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/LinkManager.cpp b/third-party/td/td/td/telegram/LinkManager.cpp
deleted file mode 100644
index 238b8c1cfe..0000000000
--- a/third-party/td/td/td/telegram/LinkManager.cpp
+++ /dev/null
@@ -1,3478 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/LinkManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/BackgroundType.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogInviteLinkManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/Proxy.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/mtproto/ProxySecret.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/utf8.h"
-
-#include <tuple>
-
-namespace td {
-
-static bool is_valid_start_parameter(Slice start_parameter) {
-  return is_base64url_characters(start_parameter);
-}
-
-static bool is_valid_phone_number(Slice phone_number) {
-  if (phone_number.empty() || phone_number.size() > 32) {
-    return false;
-  }
-  for (auto c : phone_number) {
-    if (!is_digit(c)) {
-      return false;
-    }
-  }
-  return true;
-}
-
-static bool is_valid_game_name(Slice name) {
-  return name.size() >= 3 && is_valid_username(name);
-}
-
-static bool is_valid_web_app_name(Slice name) {
-  return name.size() >= 3 && is_valid_username(name);
-}
-
-static bool is_valid_story_id(Slice story_id) {
-  auto r_story_id = to_integer_safe<int32>(story_id);
-  return r_story_id.is_ok() && StoryId(r_story_id.ok()).is_server();
-}
-
-static string get_url_query_hash(bool is_tg, const HttpUrlQuery &url_query) {
-  const auto &path = url_query.path_;
-  if (is_tg) {
-    if (path.size() == 1 && path[0] == "join") {
-      // join?invite=<hash>
-      return url_query.get_arg("invite").str();
-    }
-  } else {
-    if (path.size() >= 2 && path[0] == "joinchat") {
-      // /joinchat/<hash>
-      return path[1];
-    }
-    if (!path.empty() && path[0].size() >= 2 && (path[0][0] == ' ' || path[0][0] == '+')) {
-      // /+<link>
-      return path[0].substr(1);
-    }
-  }
-  return string();
-}
-
-static string get_url_query_slug(bool is_tg, const HttpUrlQuery &url_query) {
-  const auto &path = url_query.path_;
-  if (is_tg) {
-    if (path.size() == 1 && path[0] == "addlist") {
-      // addlist?slug=<hash>
-      return url_query.get_arg("slug").str();
-    }
-  } else {
-    if (path.size() >= 2 && path[0] == "addlist") {
-      // /addlist/<hash>
-      return path[1];
-    }
-  }
-  return string();
-}
-
-static string get_url_query_draft_text(const HttpUrlQuery &url_query) {
-  auto text_slice = url_query.get_arg("text");
-  if (text_slice.empty()) {
-    return string();
-  }
-  auto text = text_slice.str();
-  if (!check_utf8(text)) {
-    return string();
-  }
-  text = utf8_truncate(std::move(text), 4096u);
-  if (text[0] == '@') {
-    return ' ' + text;
-  }
-  return text;
-}
-
-static vector<string> get_referral_program_start_parameter_prefixes() {
-  if (Scheduler::context() != nullptr) {
-    return full_split(G()->get_option_string("starref_start_param_prefixes", "_tgr_"), ' ');
-  }
-  return vector<string>{"_tgr_"};
-}
-
-static AdministratorRights get_administrator_rights(Slice rights, bool for_channel) {
-  bool can_manage_dialog = false;
-  bool can_change_info = false;
-  bool can_post_messages = false;
-  bool can_edit_messages = false;
-  bool can_delete_messages = false;
-  bool can_invite_users = false;
-  bool can_restrict_members = false;
-  bool can_pin_messages = false;
-  bool can_manage_topics = false;
-  bool can_promote_members = false;
-  bool can_manage_calls = false;
-  bool can_post_stories = false;
-  bool can_edit_stories = false;
-  bool can_delete_stories = false;
-  bool is_anonymous = false;
-  for (auto right : full_split(rights, ' ')) {
-    if (right == "change_info") {
-      can_change_info = true;
-    } else if (right == "post_messages") {
-      can_post_messages = true;
-    } else if (right == "edit_messages") {
-      can_edit_messages = true;
-    } else if (right == "delete_messages") {
-      can_delete_messages = true;
-    } else if (right == "restrict_members") {
-      can_restrict_members = true;
-    } else if (right == "invite_users") {
-      can_invite_users = true;
-    } else if (right == "pin_messages") {
-      can_pin_messages = true;
-    } else if (right == "manage_topics") {
-      can_manage_topics = true;
-    } else if (right == "promote_members") {
-      can_promote_members = true;
-    } else if (right == "manage_video_chats") {
-      can_manage_calls = true;
-    } else if (right == "post_stories") {
-      can_post_stories = true;
-    } else if (right == "edit_stories") {
-      can_edit_stories = true;
-    } else if (right == "delete_stories") {
-      can_delete_stories = true;
-    } else if (right == "anonymous") {
-      is_anonymous = true;
-    } else if (right == "manage_chat") {
-      can_manage_dialog = true;
-    }
-  }
-  return AdministratorRights(is_anonymous, can_manage_dialog, can_change_info, can_post_messages, can_edit_messages,
-                             can_delete_messages, can_invite_users, can_restrict_members, can_pin_messages,
-                             can_manage_topics, can_promote_members, can_manage_calls, can_post_stories,
-                             can_edit_stories, can_delete_stories,
-                             for_channel ? ChannelType::Broadcast : ChannelType::Megagroup);
-}
-
-static string get_admin_string(AdministratorRights rights) {
-  vector<string> admin_rights;
-  if (rights.can_change_info_and_settings()) {
-    admin_rights.emplace_back("change_info");
-  }
-  if (rights.can_post_messages()) {
-    admin_rights.emplace_back("post_messages");
-  }
-  if (rights.can_edit_messages()) {
-    admin_rights.emplace_back("edit_messages");
-  }
-  if (rights.can_delete_messages()) {
-    admin_rights.emplace_back("delete_messages");
-  }
-  if (rights.can_restrict_members()) {
-    admin_rights.emplace_back("restrict_members");
-  }
-  if (rights.can_invite_users()) {
-    admin_rights.emplace_back("invite_users");
-  }
-  if (rights.can_pin_messages()) {
-    admin_rights.emplace_back("pin_messages");
-  }
-  if (rights.can_manage_topics()) {
-    admin_rights.emplace_back("manage_topics");
-  }
-  if (rights.can_promote_members()) {
-    admin_rights.emplace_back("promote_members");
-  }
-  if (rights.can_manage_calls()) {
-    admin_rights.emplace_back("manage_video_chats");
-  }
-  if (rights.can_post_stories()) {
-    admin_rights.emplace_back("post_stories");
-  }
-  if (rights.can_edit_stories()) {
-    admin_rights.emplace_back("edit_stories");
-  }
-  if (rights.can_delete_stories()) {
-    admin_rights.emplace_back("delete_stories");
-  }
-  if (rights.is_anonymous()) {
-    admin_rights.emplace_back("anonymous");
-  }
-  if (rights.can_manage_dialog()) {
-    admin_rights.emplace_back("manage_chat");
-  }
-  if (admin_rights.empty()) {
-    return string();
-  }
-  return "&admin=" + implode(admin_rights, '+');
-}
-
-static td_api::object_ptr<td_api::targetChatTypes> get_target_chat_types(Slice chat_types) {
-  bool allow_users = false;
-  bool allow_bots = false;
-  bool allow_groups = false;
-  bool allow_channels = false;
-  for (auto chat_type : full_split(chat_types, ' ')) {
-    if (chat_type == "users") {
-      allow_users = true;
-    } else if (chat_type == "bots") {
-      allow_bots = true;
-    } else if (chat_type == "groups") {
-      allow_groups = true;
-    } else if (chat_type == "channels") {
-      allow_channels = true;
-    }
-  }
-  if (!allow_users && !allow_bots && !allow_groups && !allow_channels) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::targetChatTypes>(allow_users, allow_bots, allow_groups, allow_channels);
-}
-
-static td_api::object_ptr<td_api::WebAppOpenMode> get_web_app_open_mode_object(const string &mode) {
-  if (mode == "compact") {
-    return td_api::make_object<td_api::webAppOpenModeCompact>();
-  }
-  if (mode == "fullscreen") {
-    return td_api::make_object<td_api::webAppOpenModeFullScreen>();
-  }
-  return td_api::make_object<td_api::webAppOpenModeFullSize>();
-}
-
-class LinkManager::InternalLinkActiveSessions final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeActiveSessions>();
-  }
-};
-
-class LinkManager::InternalLinkAttachMenuBot final : public InternalLink {
-  td_api::object_ptr<td_api::targetChatTypes> allowed_chat_types_;
-  unique_ptr<InternalLink> dialog_link_;
-  string bot_username_;
-  string url_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    td_api::object_ptr<td_api::TargetChat> target_chat;
-    if (dialog_link_ != nullptr) {
-      target_chat = td_api::make_object<td_api::targetChatInternalLink>(dialog_link_->get_internal_link_type_object());
-    } else if (allowed_chat_types_ != nullptr) {
-      target_chat = td_api::make_object<td_api::targetChatChosen>(td_api::make_object<td_api::targetChatTypes>(
-          allowed_chat_types_->allow_user_chats_, allowed_chat_types_->allow_bot_chats_,
-          allowed_chat_types_->allow_group_chats_, allowed_chat_types_->allow_channel_chats_));
-    } else {
-      target_chat = td_api::make_object<td_api::targetChatCurrent>();
-    }
-    return td_api::make_object<td_api::internalLinkTypeAttachmentMenuBot>(std::move(target_chat), bot_username_, url_);
-  }
-
- public:
-  InternalLinkAttachMenuBot(td_api::object_ptr<td_api::targetChatTypes> allowed_chat_types,
-                            unique_ptr<InternalLink> dialog_link, string bot_username, Slice start_parameter)
-      : allowed_chat_types_(std::move(allowed_chat_types))
-      , dialog_link_(std::move(dialog_link))
-      , bot_username_(std::move(bot_username)) {
-    if (!start_parameter.empty()) {
-      url_ = PSTRING() << "start://" << start_parameter;
-    }
-  }
-};
-
-class LinkManager::InternalLinkAuthenticationCode final : public InternalLink {
-  string code_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeAuthenticationCode>(code_);
-  }
-
- public:
-  explicit InternalLinkAuthenticationCode(string code) : code_(std::move(code)) {
-  }
-};
-
-class LinkManager::InternalLinkBackground final : public InternalLink {
-  string background_name_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeBackground>(background_name_);
-  }
-
- public:
-  explicit InternalLinkBackground(string background_name) : background_name_(std::move(background_name)) {
-  }
-};
-
-class LinkManager::InternalLinkBotAddToChannel final : public InternalLink {
-  string bot_username_;
-  AdministratorRights administrator_rights_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeBotAddToChannel>(
-        bot_username_, administrator_rights_.get_chat_administrator_rights_object());
-  }
-
- public:
-  InternalLinkBotAddToChannel(string bot_username, AdministratorRights &&administrator_rights)
-      : bot_username_(std::move(bot_username)), administrator_rights_(std::move(administrator_rights)) {
-  }
-};
-
-class LinkManager::InternalLinkBotStart final : public InternalLink {
-  string bot_username_;
-  string start_parameter_;
-  bool autostart_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    bool autostart = autostart_;
-    if (Scheduler::context() != nullptr && !autostart) {
-      if (bot_username_ == G()->get_option_string("premium_bot_username")) {
-        autostart = true;
-      } else {
-        const Td *td = G()->td().get_actor_unsafe();
-        auto dialog_id = td->dialog_manager_->get_resolved_dialog_by_username(bot_username_);
-        if (dialog_id.get_type() == DialogType::User && td->messages_manager_->get_dialog_has_last_message(dialog_id) &&
-            !td->messages_manager_->is_dialog_blocked(dialog_id)) {
-          autostart = true;
-        }
-      }
-    }
-    return td_api::make_object<td_api::internalLinkTypeBotStart>(bot_username_, start_parameter_, autostart);
-  }
-
- public:
-  InternalLinkBotStart(string bot_username, string start_parameter, bool autostart)
-      : bot_username_(std::move(bot_username)), start_parameter_(std::move(start_parameter)), autostart_(autostart) {
-  }
-};
-
-class LinkManager::InternalLinkBotStartInGroup final : public InternalLink {
-  string bot_username_;
-  string start_parameter_;
-  AdministratorRights administrator_rights_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeBotStartInGroup>(
-        bot_username_, start_parameter_,
-        administrator_rights_ == AdministratorRights() ? nullptr
-                                                       : administrator_rights_.get_chat_administrator_rights_object());
-  }
-
- public:
-  InternalLinkBotStartInGroup(string bot_username, string start_parameter, AdministratorRights &&administrator_rights)
-      : bot_username_(std::move(bot_username))
-      , start_parameter_(std::move(start_parameter))
-      , administrator_rights_(std::move(administrator_rights)) {
-  }
-};
-
-class LinkManager::InternalLinkBusinessChat final : public InternalLink {
-  string link_name_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeBusinessChat>(link_name_);
-  }
-
- public:
-  explicit InternalLinkBusinessChat(string link_name) : link_name_(std::move(link_name)) {
-  }
-};
-
-class LinkManager::InternalLinkBuyStars final : public InternalLink {
-  int64 star_count_;
-  string purpose_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeBuyStars>(star_count_, purpose_);
-  }
-
- public:
-  InternalLinkBuyStars(int64 star_count, const string &purpose)
-      : star_count_(clamp(star_count, static_cast<int64>(1), static_cast<int64>(1000000000000))), purpose_(purpose) {
-  }
-};
-
-class LinkManager::InternalLinkChangePhoneNumber final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeChangePhoneNumber>();
-  }
-};
-
-class LinkManager::InternalLinkConfirmPhone final : public InternalLink {
-  string hash_;
-  string phone_number_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypePhoneNumberConfirmation>(hash_, phone_number_);
-  }
-
- public:
-  InternalLinkConfirmPhone(string hash, string phone_number)
-      : hash_(std::move(hash)), phone_number_(std::move(phone_number)) {
-  }
-};
-
-class LinkManager::InternalLinkDefaultMessageAutoDeleteTimerSettings final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeDefaultMessageAutoDeleteTimerSettings>();
-  }
-};
-
-class LinkManager::InternalLinkDialogBoost final : public InternalLink {
-  string url_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeChatBoost>(url_);
-  }
-
- public:
-  explicit InternalLinkDialogBoost(string url) : url_(std::move(url)) {
-  }
-};
-
-class LinkManager::InternalLinkDialogFolderInvite final : public InternalLink {
-  string url_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeChatFolderInvite>(url_);
-  }
-
- public:
-  explicit InternalLinkDialogFolderInvite(string url) : url_(std::move(url)) {
-  }
-};
-
-class LinkManager::InternalLinkDialogInvite final : public InternalLink {
-  string url_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeChatInvite>(url_);
-  }
-
- public:
-  explicit InternalLinkDialogInvite(string url) : url_(std::move(url)) {
-  }
-};
-
-class LinkManager::InternalLinkDialogReferralProgram final : public InternalLink {
-  string username_;
-  string referral_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeChatAffiliateProgram>(username_, referral_);
-  }
-
- public:
-  InternalLinkDialogReferralProgram(string username, string referral)
-      : username_(std::move(username)), referral_(std::move(referral)) {
-  }
-};
-
-class LinkManager::InternalLinkEditProfileSettings final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeEditProfileSettings>();
-  }
-};
-
-class LinkManager::InternalLinkDialogFolderSettings final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeChatFolderSettings>();
-  }
-};
-
-class LinkManager::InternalLinkGame final : public InternalLink {
-  string bot_username_;
-  string game_short_name_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeGame>(bot_username_, game_short_name_);
-  }
-
- public:
-  InternalLinkGame(string bot_username, string game_short_name)
-      : bot_username_(std::move(bot_username)), game_short_name_(std::move(game_short_name)) {
-  }
-};
-
-class LinkManager::InternalLinkInstantView final : public InternalLink {
-  string url_;
-  string fallback_url_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeInstantView>(url_, fallback_url_);
-  }
-
- public:
-  InternalLinkInstantView(string url, string fallback_url)
-      : url_(std::move(url)), fallback_url_(std::move(fallback_url)) {
-  }
-};
-
-class LinkManager::InternalLinkInvoice final : public InternalLink {
-  string invoice_name_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeInvoice>(invoice_name_);
-  }
-
- public:
-  explicit InternalLinkInvoice(string invoice_name) : invoice_name_(std::move(invoice_name)) {
-  }
-};
-
-class LinkManager::InternalLinkLanguage final : public InternalLink {
-  string language_pack_id_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeLanguagePack>(language_pack_id_);
-  }
-
- public:
-  explicit InternalLinkLanguage(string language_pack_id) : language_pack_id_(std::move(language_pack_id)) {
-  }
-};
-
-class LinkManager::InternalLinkLanguageSettings final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeLanguageSettings>();
-  }
-};
-
-class LinkManager::InternalLinkMainWebApp final : public InternalLink {
-  string bot_username_;
-  string start_parameter_;
-  string mode_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeMainWebApp>(bot_username_, start_parameter_,
-                                                                   get_web_app_open_mode_object(mode_));
-  }
-
- public:
-  InternalLinkMainWebApp(string bot_username, string start_parameter, string mode)
-      : bot_username_(std::move(bot_username)), start_parameter_(std::move(start_parameter)), mode_(std::move(mode)) {
-  }
-};
-
-class LinkManager::InternalLinkMessage final : public InternalLink {
-  string url_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeMessage>(url_);
-  }
-
- public:
-  explicit InternalLinkMessage(string url) : url_(std::move(url)) {
-  }
-};
-
-class LinkManager::InternalLinkMessageDraft final : public InternalLink {
-  FormattedText text_;
-  bool contains_link_ = false;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeMessageDraft>(
-        get_formatted_text_object(nullptr, text_, true, -1), contains_link_);
-  }
-
- public:
-  InternalLinkMessageDraft(FormattedText &&text, bool contains_link)
-      : text_(std::move(text)), contains_link_(contains_link) {
-  }
-};
-
-class LinkManager::InternalLinkPassportDataRequest final : public InternalLink {
-  UserId bot_user_id_;
-  string scope_;
-  string public_key_;
-  string nonce_;
-  string callback_url_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypePassportDataRequest>(bot_user_id_.get(), scope_, public_key_,
-                                                                            nonce_, callback_url_);
-  }
-
- public:
-  InternalLinkPassportDataRequest(UserId bot_user_id, string scope, string public_key, string nonce,
-                                  string callback_url)
-      : bot_user_id_(bot_user_id)
-      , scope_(std::move(scope))
-      , public_key_(std::move(public_key))
-      , nonce_(std::move(nonce))
-      , callback_url_(std::move(callback_url)) {
-  }
-};
-
-class LinkManager::InternalLinkPremiumFeatures final : public InternalLink {
-  string referrer_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypePremiumFeatures>(referrer_);
-  }
-
- public:
-  explicit InternalLinkPremiumFeatures(string referrer) : referrer_(std::move(referrer)) {
-  }
-};
-
-class LinkManager::InternalLinkPremiumGift final : public InternalLink {
-  string referrer_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypePremiumGift>(referrer_);
-  }
-
- public:
-  explicit InternalLinkPremiumGift(string referrer) : referrer_(std::move(referrer)) {
-  }
-};
-
-class LinkManager::InternalLinkPremiumGiftCode final : public InternalLink {
-  string code_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypePremiumGiftCode>(code_);
-  }
-
- public:
-  explicit InternalLinkPremiumGiftCode(string code) : code_(std::move(code)) {
-  }
-};
-
-class LinkManager::InternalLinkPrivacyAndSecuritySettings final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypePrivacyAndSecuritySettings>();
-  }
-};
-
-class LinkManager::InternalLinkProxy final : public InternalLink {
-  string server_;
-  int32 port_;
-  td_api::object_ptr<td_api::ProxyType> type_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    CHECK(type_ != nullptr);
-    auto type = type_.get();
-    auto proxy_type = [type]() -> td_api::object_ptr<td_api::ProxyType> {
-      switch (type->get_id()) {
-        case td_api::proxyTypeSocks5::ID: {
-          auto type_socks = static_cast<const td_api::proxyTypeSocks5 *>(type);
-          return td_api::make_object<td_api::proxyTypeSocks5>(type_socks->username_, type_socks->password_);
-        }
-        case td_api::proxyTypeMtproto::ID: {
-          auto type_mtproto = static_cast<const td_api::proxyTypeMtproto *>(type);
-          return td_api::make_object<td_api::proxyTypeMtproto>(type_mtproto->secret_);
-        }
-        default:
-          UNREACHABLE();
-          return nullptr;
-      }
-    }();
-    return td_api::make_object<td_api::internalLinkTypeProxy>(server_, port_, std::move(proxy_type));
-  }
-
- public:
-  InternalLinkProxy(string server, int32 port, td_api::object_ptr<td_api::ProxyType> type)
-      : server_(std::move(server)), port_(port), type_(std::move(type)) {
-  }
-};
-
-class LinkManager::InternalLinkPublicDialog final : public InternalLink {
-  string dialog_username_;
-  string draft_text_;
-  bool open_profile_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypePublicChat>(dialog_username_, draft_text_, open_profile_);
-  }
-
- public:
-  InternalLinkPublicDialog(string dialog_username, string draft_text, bool open_profile)
-      : dialog_username_(std::move(dialog_username)), draft_text_(std::move(draft_text)), open_profile_(open_profile) {
-  }
-};
-
-class LinkManager::InternalLinkQrCodeAuthentication final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeQrCodeAuthentication>();
-  }
-};
-
-class LinkManager::InternalLinkRestorePurchases final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeRestorePurchases>();
-  }
-};
-
-class LinkManager::InternalLinkSettings final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeSettings>();
-  }
-};
-
-class LinkManager::InternalLinkStickerSet final : public InternalLink {
-  string sticker_set_name_;
-  bool expect_custom_emoji_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeStickerSet>(sticker_set_name_, expect_custom_emoji_);
-  }
-
- public:
-  InternalLinkStickerSet(string sticker_set_name, bool expect_custom_emoji)
-      : sticker_set_name_(std::move(sticker_set_name)), expect_custom_emoji_(expect_custom_emoji) {
-  }
-};
-
-class LinkManager::InternalLinkStory final : public InternalLink {
-  string story_sender_username_;
-  StoryId story_id_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeStory>(story_sender_username_, story_id_.get());
-  }
-
- public:
-  InternalLinkStory(string story_sender_username, StoryId story_id)
-      : story_sender_username_(std::move(story_sender_username)), story_id_(story_id) {
-  }
-};
-
-class LinkManager::InternalLinkTheme final : public InternalLink {
-  string theme_name_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeTheme>(theme_name_);
-  }
-
- public:
-  explicit InternalLinkTheme(string theme_name) : theme_name_(std::move(theme_name)) {
-  }
-};
-
-class LinkManager::InternalLinkThemeSettings final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeThemeSettings>();
-  }
-};
-
-class LinkManager::InternalLinkUnknownDeepLink final : public InternalLink {
-  string link_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeUnknownDeepLink>(link_);
-  }
-
- public:
-  explicit InternalLinkUnknownDeepLink(string link) : link_(std::move(link)) {
-  }
-};
-
-class LinkManager::InternalLinkUnsupportedProxy final : public InternalLink {
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeUnsupportedProxy>();
-  }
-};
-
-class LinkManager::InternalLinkUserPhoneNumber final : public InternalLink {
-  string phone_number_;
-  string draft_text_;
-  bool open_profile_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeUserPhoneNumber>(phone_number_, draft_text_, open_profile_);
-  }
-
- public:
-  InternalLinkUserPhoneNumber(Slice phone_number, string draft_text, bool open_profile)
-      : phone_number_(PSTRING() << '+' << phone_number)
-      , draft_text_(std::move(draft_text))
-      , open_profile_(open_profile) {
-  }
-};
-
-class LinkManager::InternalLinkUpgradedGift final : public InternalLink {
-  string name_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeUpgradedGift>(name_);
-  }
-
- public:
-  explicit InternalLinkUpgradedGift(string name) : name_(std::move(name)) {
-  }
-};
-
-class LinkManager::InternalLinkUserToken final : public InternalLink {
-  string token_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeUserToken>(token_);
-  }
-
- public:
-  explicit InternalLinkUserToken(string token) : token_(std::move(token)) {
-  }
-};
-
-class LinkManager::InternalLinkVoiceChat final : public InternalLink {
-  string dialog_username_;
-  string invite_hash_;
-  bool is_live_stream_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeVideoChat>(dialog_username_, invite_hash_, is_live_stream_);
-  }
-
- public:
-  InternalLinkVoiceChat(string dialog_username, string invite_hash, bool is_live_stream)
-      : dialog_username_(std::move(dialog_username))
-      , invite_hash_(std::move(invite_hash))
-      , is_live_stream_(is_live_stream) {
-  }
-};
-
-class LinkManager::InternalLinkWebApp final : public InternalLink {
-  string bot_username_;
-  string web_app_short_name_;
-  string start_parameter_;
-  string mode_;
-
-  td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const final {
-    return td_api::make_object<td_api::internalLinkTypeWebApp>(bot_username_, web_app_short_name_, start_parameter_,
-                                                               get_web_app_open_mode_object(mode_));
-  }
-
- public:
-  InternalLinkWebApp(string bot_username, string web_app_short_name, string start_parameter, string mode)
-      : bot_username_(std::move(bot_username))
-      , web_app_short_name_(std::move(web_app_short_name))
-      , start_parameter_(std::move(start_parameter))
-      , mode_(std::move(mode)) {
-  }
-};
-
-class GetRecentMeUrlsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::tMeUrls>> promise_;
-
- public:
-  explicit GetRecentMeUrlsQuery(Promise<td_api::object_ptr<td_api::tMeUrls>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &referrer) {
-    send_query(G()->net_query_creator().create(telegram_api::help_getRecentMeUrls(referrer)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getRecentMeUrls>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto urls_full = result_ptr.move_as_ok();
-    td_->user_manager_->on_get_users(std::move(urls_full->users_), "GetRecentMeUrlsQuery");
-    td_->chat_manager_->on_get_chats(std::move(urls_full->chats_), "GetRecentMeUrlsQuery");
-
-    auto urls = std::move(urls_full->urls_);
-    auto results = td_api::make_object<td_api::tMeUrls>();
-    results->urls_.reserve(urls.size());
-    for (auto &url_ptr : urls) {
-      CHECK(url_ptr != nullptr);
-      td_api::object_ptr<td_api::tMeUrl> result = td_api::make_object<td_api::tMeUrl>();
-      switch (url_ptr->get_id()) {
-        case telegram_api::recentMeUrlUser::ID: {
-          auto url = telegram_api::move_object_as<telegram_api::recentMeUrlUser>(url_ptr);
-          result->url_ = std::move(url->url_);
-          UserId user_id(url->user_id_);
-          if (!user_id.is_valid()) {
-            LOG(ERROR) << "Receive invalid " << user_id;
-            result = nullptr;
-            break;
-          }
-          result->type_ = td_api::make_object<td_api::tMeUrlTypeUser>(
-              td_->user_manager_->get_user_id_object(user_id, "tMeUrlTypeUser"));
-          break;
-        }
-        case telegram_api::recentMeUrlChat::ID: {
-          auto url = telegram_api::move_object_as<telegram_api::recentMeUrlChat>(url_ptr);
-          result->url_ = std::move(url->url_);
-          ChannelId channel_id(url->chat_id_);
-          if (!channel_id.is_valid()) {
-            LOG(ERROR) << "Receive invalid " << channel_id;
-            result = nullptr;
-            break;
-          }
-          result->type_ = td_api::make_object<td_api::tMeUrlTypeSupergroup>(
-              td_->chat_manager_->get_supergroup_id_object(channel_id, "tMeUrlTypeSupergroup"));
-          break;
-        }
-        case telegram_api::recentMeUrlChatInvite::ID: {
-          auto url = telegram_api::move_object_as<telegram_api::recentMeUrlChatInvite>(url_ptr);
-          result->url_ = std::move(url->url_);
-          td_->dialog_invite_link_manager_->on_get_dialog_invite_link_info(result->url_, std::move(url->chat_invite_),
-                                                                           Promise<Unit>());
-          auto info_object = td_->dialog_invite_link_manager_->get_chat_invite_link_info_object(result->url_);
-          if (info_object == nullptr) {
-            result = nullptr;
-            break;
-          }
-          result->type_ = td_api::make_object<td_api::tMeUrlTypeChatInvite>(std::move(info_object));
-          break;
-        }
-        case telegram_api::recentMeUrlStickerSet::ID: {
-          auto url = telegram_api::move_object_as<telegram_api::recentMeUrlStickerSet>(url_ptr);
-          result->url_ = std::move(url->url_);
-          auto sticker_set_id =
-              td_->stickers_manager_->on_get_sticker_set_covered(std::move(url->set_), false, "recentMeUrlStickerSet");
-          if (!sticker_set_id.is_valid()) {
-            LOG(ERROR) << "Receive invalid sticker set";
-            result = nullptr;
-            break;
-          }
-          result->type_ = td_api::make_object<td_api::tMeUrlTypeStickerSet>(sticker_set_id.get());
-          break;
-        }
-        case telegram_api::recentMeUrlUnknown::ID:
-          // skip
-          result = nullptr;
-          break;
-        default:
-          UNREACHABLE();
-      }
-      if (result != nullptr) {
-        results->urls_.push_back(std::move(result));
-      }
-    }
-    promise_.set_value(std::move(results));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetDeepLinkInfoQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::deepLinkInfo>> promise_;
-
- public:
-  explicit GetDeepLinkInfoQuery(Promise<td_api::object_ptr<td_api::deepLinkInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(Slice link) {
-    send_query(G()->net_query_creator().create_unauth(telegram_api::help_getDeepLinkInfo(link.str())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getDeepLinkInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    switch (result->get_id()) {
-      case telegram_api::help_deepLinkInfoEmpty::ID:
-        return promise_.set_value(nullptr);
-      case telegram_api::help_deepLinkInfo::ID: {
-        auto info = telegram_api::move_object_as<telegram_api::help_deepLinkInfo>(result);
-        auto text = get_formatted_text(nullptr, std::move(info->message_), std::move(info->entities_), true, true,
-                                       "GetDeepLinkInfoQuery");
-        return promise_.set_value(td_api::make_object<td_api::deepLinkInfo>(
-            get_formatted_text_object(td_->user_manager_.get(), text, true, -1), info->update_app_));
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RequestUrlAuthQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::LoginUrlInfo>> promise_;
-  string url_;
-  DialogId dialog_id_;
-
- public:
-  explicit RequestUrlAuthQuery(Promise<td_api::object_ptr<td_api::LoginUrlInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(string url, MessageFullId message_full_id, int32 button_id) {
-    url_ = std::move(url);
-    int32 flags = 0;
-    tl_object_ptr<telegram_api::InputPeer> input_peer;
-    if (message_full_id.get_dialog_id().is_valid()) {
-      dialog_id_ = message_full_id.get_dialog_id();
-      input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-      CHECK(input_peer != nullptr);
-      flags |= telegram_api::messages_requestUrlAuth::PEER_MASK;
-    } else {
-      flags |= telegram_api::messages_requestUrlAuth::URL_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_requestUrlAuth(
-        flags, std::move(input_peer), message_full_id.get_message_id().get_server_message_id().get(), button_id,
-        url_)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_requestUrlAuth>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for RequestUrlAuthQuery: " << to_string(result);
-    switch (result->get_id()) {
-      case telegram_api::urlAuthResultRequest::ID: {
-        auto request = telegram_api::move_object_as<telegram_api::urlAuthResultRequest>(result);
-        UserId bot_user_id = UserManager::get_user_id(request->bot_);
-        if (!bot_user_id.is_valid()) {
-          return on_error(Status::Error(500, "Receive invalid bot_user_id"));
-        }
-        td_->user_manager_->on_get_user(std::move(request->bot_), "RequestUrlAuthQuery");
-        promise_.set_value(td_api::make_object<td_api::loginUrlInfoRequestConfirmation>(
-            url_, request->domain_, td_->user_manager_->get_user_id_object(bot_user_id, "RequestUrlAuthQuery"),
-            request->request_write_access_));
-        break;
-      }
-      case telegram_api::urlAuthResultAccepted::ID: {
-        auto accepted = telegram_api::move_object_as<telegram_api::urlAuthResultAccepted>(result);
-        promise_.set_value(td_api::make_object<td_api::loginUrlInfoOpen>(accepted->url_, true));
-        break;
-      }
-      case telegram_api::urlAuthResultDefault::ID:
-        promise_.set_value(td_api::make_object<td_api::loginUrlInfoOpen>(url_, false));
-        break;
-    }
-  }
-
-  void on_error(Status status) final {
-    if (!dialog_id_.is_valid() ||
-        !td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "RequestUrlAuthQuery")) {
-      LOG(INFO) << "Receive error for RequestUrlAuthQuery: " << status;
-    }
-    promise_.set_value(td_api::make_object<td_api::loginUrlInfoOpen>(url_, false));
-  }
-};
-
-class AcceptUrlAuthQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::httpUrl>> promise_;
-  string url_;
-  DialogId dialog_id_;
-
- public:
-  explicit AcceptUrlAuthQuery(Promise<td_api::object_ptr<td_api::httpUrl>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(string url, MessageFullId message_full_id, int32 button_id, bool allow_write_access) {
-    url_ = std::move(url);
-    int32 flags = 0;
-    tl_object_ptr<telegram_api::InputPeer> input_peer;
-    if (message_full_id.get_dialog_id().is_valid()) {
-      dialog_id_ = message_full_id.get_dialog_id();
-      input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-      CHECK(input_peer != nullptr);
-      flags |= telegram_api::messages_acceptUrlAuth::PEER_MASK;
-    } else {
-      flags |= telegram_api::messages_acceptUrlAuth::URL_MASK;
-    }
-    if (allow_write_access) {
-      flags |= telegram_api::messages_acceptUrlAuth::WRITE_ALLOWED_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_acceptUrlAuth(
-        flags, false /*ignored*/, std::move(input_peer), message_full_id.get_message_id().get_server_message_id().get(),
-        button_id, url_)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_acceptUrlAuth>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive " << to_string(result);
-    switch (result->get_id()) {
-      case telegram_api::urlAuthResultRequest::ID:
-        LOG(ERROR) << "Receive unexpected " << to_string(result);
-        return on_error(Status::Error(500, "Receive unexpected urlAuthResultRequest"));
-      case telegram_api::urlAuthResultAccepted::ID: {
-        auto accepted = telegram_api::move_object_as<telegram_api::urlAuthResultAccepted>(result);
-        promise_.set_value(td_api::make_object<td_api::httpUrl>(accepted->url_));
-        break;
-      }
-      case telegram_api::urlAuthResultDefault::ID:
-        promise_.set_value(td_api::make_object<td_api::httpUrl>(url_));
-        break;
-    }
-  }
-
-  void on_error(Status status) final {
-    if (!dialog_id_.is_valid() ||
-        !td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "AcceptUrlAuthQuery")) {
-      LOG(INFO) << "Receive error for AcceptUrlAuthQuery: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-LinkManager::LinkManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-LinkManager::~LinkManager() = default;
-
-void LinkManager::start_up() {
-  autologin_update_time_ = Time::now() - 365 * 86400;
-
-  autologin_domains_ = full_split(G()->td_db()->get_binlog_pmc()->get("autologin_domains"), '\xFF');
-
-  url_auth_domains_ = full_split(G()->td_db()->get_binlog_pmc()->get("url_auth_domains"), '\xFF');
-
-  whitelisted_domains_ = full_split(G()->td_db()->get_binlog_pmc()->get("whitelisted_domains"), '\xFF');
-}
-
-void LinkManager::tear_down() {
-  parent_.reset();
-}
-
-static bool tolower_begins_with(Slice str, Slice prefix) {
-  if (prefix.size() > str.size()) {
-    return false;
-  }
-  for (size_t i = 0; i < prefix.size(); i++) {
-    if (to_lower(str[i]) != prefix[i]) {
-      return false;
-    }
-  }
-  return true;
-}
-
-Result<string> LinkManager::check_link(CSlice link, bool http_only, bool https_only) {
-  auto result = check_link_impl(link, http_only, https_only);
-  if (result.is_ok()) {
-    return result;
-  }
-  auto error = result.move_as_error();
-  if (check_utf8(link)) {
-    return Status::Error(400, PSLICE() << "URL '" << link << "' is invalid: " << error.message());
-  } else {
-    return Status::Error(400, PSLICE() << "URL is invalid: " << error.message());
-  }
-}
-
-string LinkManager::get_checked_link(Slice link, bool http_only, bool https_only) {
-  auto result = check_link_impl(link, http_only, https_only);
-  if (result.is_ok()) {
-    return result.move_as_ok();
-  }
-  return string();
-}
-
-Result<string> LinkManager::check_link_impl(Slice link, bool http_only, bool https_only) {
-  bool is_tg = false;
-  bool is_ton = false;
-  bool is_tonsite = false;
-  if (tolower_begins_with(link, "tg:")) {
-    link.remove_prefix(3);
-    is_tg = true;
-  } else if (tolower_begins_with(link, "ton:")) {
-    link.remove_prefix(4);
-    is_ton = true;
-  } else if (tolower_begins_with(link, "tonsite:")) {
-    link.remove_prefix(8);
-    is_tonsite = true;
-  }
-  if ((is_tg || is_ton || is_tonsite) && begins_with(link, "//")) {
-    link.remove_prefix(2);
-  }
-  TRY_RESULT(http_url, parse_url(link));
-  if (https_only && (http_url.protocol_ != HttpUrl::Protocol::Https || is_tg || is_ton || is_tonsite)) {
-    return Status::Error("Only HTTPS links are allowed");
-  }
-  if (is_tg || is_ton || is_tonsite) {
-    if (http_only) {
-      return Status::Error("Only HTTP links are allowed");
-    }
-    if (tolower_begins_with(link, "http://") || http_url.protocol_ == HttpUrl::Protocol::Https ||
-        !http_url.userinfo_.empty() || http_url.specified_port_ != 0 || http_url.is_ipv6_) {
-      return Status::Error(is_tg ? Slice("Wrong tg URL") : Slice("Wrong ton URL"));
-    }
-
-    Slice query(http_url.query_);
-    CHECK(query[0] == '/');
-    if (query.size() > 1 && query[1] == '?') {
-      query.remove_prefix(1);
-    }
-    for (auto c : http_url.host_) {
-      if (!is_alnum(c) && c != '-' && c != '_' && !(is_tonsite && c == '.')) {
-        return Status::Error("Unallowed characters in URL host");
-      }
-    }
-    return PSTRING() << (is_tg ? "tg" : (is_tonsite ? "tonsite" : "ton")) << "://" << http_url.host_ << query;
-  }
-
-  if (http_url.host_.find('.') == string::npos && !http_url.is_ipv6_) {
-    return Status::Error("Wrong HTTP URL");
-  }
-  return http_url.get_url();
-}
-
-LinkManager::LinkInfo LinkManager::get_link_info(Slice link) {
-  LinkInfo result;
-  if (link.empty()) {
-    return result;
-  }
-  link.truncate(link.find('#'));
-
-  bool is_tg = false;
-  if (tolower_begins_with(link, "tg:")) {
-    link.remove_prefix(3);
-    if (begins_with(link, "//")) {
-      link.remove_prefix(2);
-    }
-    is_tg = true;
-  }
-
-  auto r_http_url = parse_url(link);
-  if (r_http_url.is_error()) {
-    return result;
-  }
-  auto http_url = r_http_url.move_as_ok();
-
-  if (!http_url.userinfo_.empty() || http_url.is_ipv6_) {
-    return result;
-  }
-
-  if (is_tg) {
-    if (tolower_begins_with(link, "http://") || http_url.protocol_ == HttpUrl::Protocol::Https ||
-        http_url.specified_port_ != 0) {
-      return result;
-    }
-
-    result.type_ = LinkType::Tg;
-    result.query_ = link.str();
-    return result;
-  } else {
-    if (http_url.port_ != 80 && http_url.port_ != 443) {
-      return result;
-    }
-
-    auto host = url_decode(http_url.host_, false);
-    to_lower_inplace(host);
-    if (ends_with(host, ".t.me") && host.size() >= 9 && host.find('.') == host.size() - 5) {
-      Slice subdomain(&host[0], host.size() - 5);
-      static const FlatHashSet<Slice, SliceHash> disallowed_subdomains(
-          {"addemoji", "addlist", "addstickers", "addtheme", "auth", "boost", "confirmphone", "contact",
-           "giftcode", "invoice", "joinchat",    "login",    "m",    "nft",   "proxy",        "setlanguage",
-           "share",    "socks",   "web",         "a",        "k",    "z"});
-      if (is_valid_username(subdomain) && disallowed_subdomains.count(subdomain) == 0) {
-        result.type_ = LinkType::TMe;
-        result.query_ = PSTRING() << '/' << subdomain << http_url.query_;
-        return result;
-      }
-    }
-    if (begins_with(host, "www.")) {
-      host = host.substr(4);
-    }
-
-    string cur_t_me_url;
-    vector<Slice> t_me_urls{Slice("t.me"), Slice("telegram.me"), Slice("telegram.dog")};
-#if TD_EMSCRIPTEN
-    t_me_urls.push_back(Slice("web.t.me"));
-    t_me_urls.push_back(Slice("a.t.me"));
-    t_me_urls.push_back(Slice("k.t.me"));
-    t_me_urls.push_back(Slice("z.t.me"));
-#endif
-    if (Scheduler::context() != nullptr) {  // for tests only
-      cur_t_me_url = G()->get_option_string("t_me_url");
-      if (tolower_begins_with(cur_t_me_url, "http://") || tolower_begins_with(cur_t_me_url, "https://")) {
-        Slice t_me_url = cur_t_me_url;
-        t_me_url = t_me_url.substr(t_me_url[4] == 's' ? 8 : 7);
-        if (!td::contains(t_me_urls, t_me_url)) {
-          t_me_urls.push_back(t_me_url);
-        }
-      }
-    }
-
-    for (auto t_me_url : t_me_urls) {
-      if (host == t_me_url) {
-        result.type_ = LinkType::TMe;
-
-        Slice query = http_url.query_;
-        while (true) {
-          if (begins_with(query, "/s/")) {
-            query.remove_prefix(2);
-            continue;
-          }
-          if (begins_with(query, "/%73/")) {
-            query.remove_prefix(4);
-            continue;
-          }
-          break;
-        }
-        result.query_ = query.str();
-        return result;
-      }
-    }
-
-    if (http_url.query_.size() > 1) {
-      for (auto telegraph_url : {Slice("telegra.ph"), Slice("te.legra.ph"), Slice("graph.org")}) {
-        if (host == telegraph_url) {
-          result.type_ = LinkType::Telegraph;
-          result.query_ = std::move(http_url.query_);
-          return result;
-        }
-      }
-    }
-  }
-  return result;
-}
-
-bool LinkManager::is_internal_link(Slice link) {
-  auto info = get_link_info(link);
-  return info.type_ != LinkType::External;
-}
-
-unique_ptr<LinkManager::InternalLink> LinkManager::parse_internal_link(Slice link, bool is_trusted) {
-  auto info = get_link_info(link);
-  switch (info.type_) {
-    case LinkType::External:
-      return nullptr;
-    case LinkType::Tg:
-      return parse_tg_link_query(info.query_, is_trusted);
-    case LinkType::TMe:
-      return parse_t_me_link_query(info.query_, is_trusted);
-    case LinkType::Telegraph:
-      return td::make_unique<InternalLinkInstantView>(PSTRING() << "https://telegra.ph" << info.query_, link.str());
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-namespace {
-struct CopyArg {
-  Slice name_;
-  const HttpUrlQuery *url_query_;
-  bool *is_first_;
-
-  CopyArg(Slice name, const HttpUrlQuery *url_query, bool *is_first)
-      : name_(name), url_query_(url_query), is_first_(is_first) {
-  }
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const CopyArg &copy_arg) {
-  auto arg = copy_arg.url_query_->get_arg(copy_arg.name_);
-  if (arg.empty()) {
-    for (const auto &query_arg : copy_arg.url_query_->args_) {
-      if (query_arg.first == copy_arg.name_) {
-        char c = *copy_arg.is_first_ ? '?' : '&';
-        *copy_arg.is_first_ = false;
-        return string_builder << c << copy_arg.name_;
-      }
-    }
-    return string_builder;
-  }
-  char c = *copy_arg.is_first_ ? '?' : '&';
-  *copy_arg.is_first_ = false;
-  return string_builder << c << copy_arg.name_ << '=' << url_encode(arg);
-}
-}  // namespace
-
-unique_ptr<LinkManager::InternalLink> LinkManager::parse_tg_link_query(Slice query, bool is_trusted) {
-  const auto url_query = parse_url_query(query);
-  const auto &path = url_query.path_;
-
-  bool is_first_arg = true;
-  auto copy_arg = [&](Slice name) {
-    return CopyArg(name, &url_query, &is_first_arg);
-  };
-  auto pass_arg = [&](Slice name) {
-    return url_encode(url_query.get_arg(name));
-  };
-  auto get_arg = [&](Slice name) {
-    return url_query.get_arg(name).str();
-  };
-  auto has_arg = [&](Slice name) {
-    return !url_query.get_arg(name).empty();
-  };
-
-  if (path.size() == 1 && path[0] == "resolve") {
-    auto username = get_arg("domain");
-    if (is_valid_username(username)) {
-      if (has_arg("post")) {
-        // resolve?domain=<username>&post=12345&single&thread=<thread_id>&comment=<message_id>&t=<media_timestamp>
-        return td::make_unique<InternalLinkMessage>(
-            PSTRING() << "tg://resolve" << copy_arg("domain") << copy_arg("post") << copy_arg("single")
-                      << copy_arg("thread") << copy_arg("comment") << copy_arg("t"));
-      }
-      for (auto &arg : url_query.args_) {
-        if (arg.first == "voicechat" || arg.first == "videochat" || arg.first == "livestream") {
-          // resolve?domain=<username>&videochat
-          // resolve?domain=<username>&videochat=<invite_hash>
-          if (Scheduler::context() != nullptr) {
-            send_closure(G()->dialog_manager(), &DialogManager::reload_voice_chat_on_search, username);
-          }
-          return td::make_unique<InternalLinkVoiceChat>(std::move(username), arg.second, arg.first == "livestream");
-        }
-        if (arg.first == "ref" && is_valid_start_parameter(arg.second) && !arg.second.empty()) {
-          // resolve?domain=<bot_username>&ref=<referrer>
-          return td::make_unique<InternalLinkDialogReferralProgram>(std::move(username), std::move(arg.second));
-        }
-        if (arg.first == "start" && is_valid_start_parameter(arg.second)) {
-          auto prefixes = get_referral_program_start_parameter_prefixes();
-          for (Slice prefix : prefixes) {
-            if (begins_with(arg.second, prefix) && arg.second.size() > prefix.size()) {
-              // resolve?domain=<bot_username>&start=_tgr_<referrer>
-              return td::make_unique<InternalLinkDialogReferralProgram>(std::move(username),
-                                                                        arg.second.substr(prefix.size()));
-            }
-          }
-          // resolve?domain=<bot_username>&start=<parameter>
-          return td::make_unique<InternalLinkBotStart>(std::move(username), arg.second, is_trusted);
-        }
-        if (arg.first == "startgroup" && is_valid_start_parameter(arg.second)) {
-          // resolve?domain=<bot_username>&startgroup=<parameter>
-          // resolve?domain=<bot_username>&startgroup=>parameter>&admin=change_info+delete_messages+restrict_members
-          // resolve?domain=<bot_username>&startgroup&admin=change_info+delete_messages+restrict_members
-          auto administrator_rights = get_administrator_rights(url_query.get_arg("admin"), false);
-          return td::make_unique<InternalLinkBotStartInGroup>(std::move(username), arg.second,
-                                                              std::move(administrator_rights));
-        }
-        if (arg.first == "startchannel") {
-          // resolve?domain=<bot_username>&startchannel&admin=change_info+post_messages+promote_members
-          auto administrator_rights = get_administrator_rights(url_query.get_arg("admin"), true);
-          if (administrator_rights != AdministratorRights()) {
-            return td::make_unique<InternalLinkBotAddToChannel>(std::move(username), std::move(administrator_rights));
-          }
-        }
-        if (arg.first == "game" && is_valid_game_name(arg.second)) {
-          // resolve?domain=<bot_username>&game=<short_name>
-          return td::make_unique<InternalLinkGame>(std::move(username), arg.second);
-        }
-        if (arg.first == "appname" && is_valid_web_app_name(arg.second)) {
-          // resolve?domain=<bot_username>&appname=<app_name>
-          // resolve?domain=<bot_username>&appname=<app_name>&startapp=<start_parameter>&mode=compact
-          return td::make_unique<InternalLinkWebApp>(
-              std::move(username), arg.second, url_query.get_arg("startapp").str(), url_query.get_arg("mode").str());
-        }
-        if (arg.first == "story" && is_valid_story_id(arg.second)) {
-          // resolve?domain=<username>&story=<story_id>
-          return td::make_unique<InternalLinkStory>(std::move(username), StoryId(to_integer<int32>(arg.second)));
-        }
-      }
-      if (url_query.has_arg("startapp") && !url_query.has_arg("appname")) {
-        // resolve?domain=<bot_username>&startapp=
-        // resolve?domain=<bot_username>&startapp=<start_parameter>&mode=compact
-        return td::make_unique<InternalLinkMainWebApp>(std::move(username), url_query.get_arg("startapp").str(),
-                                                       url_query.get_arg("mode").str());
-      }
-      if (!url_query.get_arg("attach").empty()) {
-        // resolve?domain=<username>&attach=<bot_username>
-        // resolve?domain=<username>&attach=<bot_username>&startattach=<start_parameter>
-        return td::make_unique<InternalLinkAttachMenuBot>(
-            nullptr, td::make_unique<InternalLinkPublicDialog>(std::move(username), string(), false),
-            url_query.get_arg("attach").str(), url_query.get_arg("startattach"));
-      } else if (url_query.has_arg("startattach")) {
-        // resolve?domain=<bot_username>&startattach&choose=users+bots+groups+channels
-        // resolve?domain=<bot_username>&startattach=<start_parameter>&choose=users+bots+groups+channels
-        return td::make_unique<InternalLinkAttachMenuBot>(get_target_chat_types(url_query.get_arg("choose")), nullptr,
-                                                          std::move(username), url_query.get_arg("startattach"));
-      }
-      if (username == "telegrampassport") {
-        // resolve?domain=telegrampassport&bot_id=...&scope=...&public_key=...&nonce=...&callback_url=...
-        auto passport_link = get_internal_link_passport(query, url_query.args_, false);
-        if (passport_link != nullptr) {
-          return passport_link;
-        }
-      }
-      // resolve?domain=<username>
-      return td::make_unique<InternalLinkPublicDialog>(std::move(username), get_url_query_draft_text(url_query),
-                                                       url_query.has_arg("profile"));
-    } else {
-      string phone_number_str = get_arg("phone");
-      auto phone_number = phone_number_str[0] == ' ' ? Slice(phone_number_str).substr(1) : Slice(phone_number_str);
-      if (is_valid_phone_number(phone_number)) {
-        if (!url_query.get_arg("attach").empty()) {
-          // resolve?phone=<phone_number>&attach=<bot_username>
-          // resolve?phone=<phone_number>&attach=<bot_username>&startattach=<start_parameter>
-          return td::make_unique<InternalLinkAttachMenuBot>(
-              nullptr, td::make_unique<InternalLinkUserPhoneNumber>(phone_number, string(), false),
-              url_query.get_arg("attach").str(), url_query.get_arg("startattach"));
-        }
-        // resolve?phone=12345
-        return td::make_unique<InternalLinkUserPhoneNumber>(phone_number, get_url_query_draft_text(url_query),
-                                                            url_query.has_arg("profile"));
-      }
-    }
-  } else if (path.size() == 1 && path[0] == "nft") {
-    // nft?slug=<slug>
-    if (has_arg("slug")) {
-      return td::make_unique<InternalLinkUpgradedGift>(get_arg("slug"));
-    }
-  } else if (path.size() == 1 && path[0] == "contact") {
-    // contact?token=<token>
-    if (has_arg("token")) {
-      return td::make_unique<InternalLinkUserToken>(get_arg("token"));
-    }
-  } else if (path.size() == 1 && path[0] == "login") {
-    // login?code=123456
-    if (has_arg("code")) {
-      return td::make_unique<InternalLinkAuthenticationCode>(get_arg("code"));
-    }
-    // login?token=<token>
-    if (has_arg("token")) {
-      return td::make_unique<InternalLinkQrCodeAuthentication>();
-    }
-  } else if (path.size() == 1 && path[0] == "restore_purchases") {
-    // restore_purchases
-    return td::make_unique<InternalLinkRestorePurchases>();
-  } else if (path.size() == 1 && path[0] == "passport") {
-    // passport?bot_id=...&scope=...&public_key=...&nonce=...&callback_url=...
-    return get_internal_link_passport(query, url_query.args_, true);
-  } else if (path.size() == 1 && path[0] == "premium_offer") {
-    // premium_offer?ref=<referrer>
-    return td::make_unique<InternalLinkPremiumFeatures>(get_arg("ref"));
-  } else if (path.size() == 1 && path[0] == "premium_multigift") {
-    // premium_multigift?ref=<referrer>
-    return td::make_unique<InternalLinkPremiumGift>(get_arg("ref"));
-  } else if (!path.empty() && path[0] == "settings") {
-    if (path.size() == 2 && path[1] == "auto_delete") {
-      // settings/auto_delete
-      return td::make_unique<InternalLinkDefaultMessageAutoDeleteTimerSettings>();
-    }
-    if (path.size() == 2 && path[1] == "change_number") {
-      // settings/change_number
-      return td::make_unique<InternalLinkChangePhoneNumber>();
-    }
-    if (path.size() == 2 && path[1] == "devices") {
-      // settings/devices
-      return td::make_unique<InternalLinkActiveSessions>();
-    }
-    if (path.size() == 2 && path[1] == "edit_profile") {
-      // settings/edit_profile
-      return td::make_unique<InternalLinkEditProfileSettings>();
-    }
-    if (path.size() == 2 && path[1] == "folders") {
-      // settings/folders
-      return td::make_unique<InternalLinkDialogFolderSettings>();
-    }
-    if (path.size() == 2 && path[1] == "language") {
-      // settings/language
-      return td::make_unique<InternalLinkLanguageSettings>();
-    }
-    if (path.size() == 2 && path[1] == "privacy") {
-      // settings/privacy
-      return td::make_unique<InternalLinkPrivacyAndSecuritySettings>();
-    }
-    if (path.size() == 2 && path[1] == "themes") {
-      // settings/themes
-      return td::make_unique<InternalLinkThemeSettings>();
-    }
-    // settings
-    return td::make_unique<InternalLinkSettings>();
-  } else if (path.size() == 1 && path[0] == "addlist") {
-    auto slug = get_url_query_slug(true, url_query);
-    if (!slug.empty() && is_base64url_characters(slug)) {
-      // addlist?slug=<slug>
-      return td::make_unique<InternalLinkDialogFolderInvite>(get_dialog_filter_invite_link(slug, true));
-    }
-  } else if (path.size() == 1 && path[0] == "join") {
-    auto invite_hash = get_url_query_hash(true, url_query);
-    if (!invite_hash.empty() && !is_valid_phone_number(invite_hash) && is_base64url_characters(invite_hash)) {
-      // join?invite=<hash>
-      return td::make_unique<InternalLinkDialogInvite>(get_dialog_invite_link(invite_hash, true));
-    }
-  } else if (path.size() == 1 && (path[0] == "addstickers" || path[0] == "addemoji")) {
-    // addstickers?set=<name>
-    // addemoji?set=<name>
-    if (has_arg("set")) {
-      return td::make_unique<InternalLinkStickerSet>(get_arg("set"), path[0] == "addemoji");
-    }
-  } else if (path.size() == 1 && path[0] == "setlanguage") {
-    // setlanguage?lang=<name>
-    if (has_arg("lang")) {
-      return td::make_unique<InternalLinkLanguage>(get_arg("lang"));
-    }
-  } else if (path.size() == 1 && path[0] == "addtheme") {
-    // addtheme?slug=<name>
-    if (has_arg("slug")) {
-      return td::make_unique<InternalLinkTheme>(get_arg("slug"));
-    }
-  } else if (path.size() == 1 && path[0] == "confirmphone") {
-    if (has_arg("hash") && has_arg("phone")) {
-      // confirmphone?phone=<phone>&hash=<hash>
-      return td::make_unique<InternalLinkConfirmPhone>(get_arg("hash"), get_arg("phone"));
-    }
-  } else if (path.size() == 1 && path[0] == "socks") {
-    if (has_arg("server") && has_arg("port")) {
-      // socks?server=<server>&port=<port>&user=<user>&pass=<pass>
-      auto port = to_integer<int32>(get_arg("port"));
-      if (0 < port && port < 65536) {
-        return td::make_unique<InternalLinkProxy>(
-            get_arg("server"), port, td_api::make_object<td_api::proxyTypeSocks5>(get_arg("user"), get_arg("pass")));
-      } else {
-        return td::make_unique<InternalLinkUnsupportedProxy>();
-      }
-    }
-  } else if (path.size() == 1 && path[0] == "proxy") {
-    if (has_arg("server") && has_arg("port")) {
-      // proxy?server=<server>&port=<port>&secret=<secret>
-      auto port = to_integer<int32>(get_arg("port"));
-      auto r_secret = mtproto::ProxySecret::from_link(get_arg("secret"));
-      if (0 < port && port < 65536 && r_secret.is_ok()) {
-        return td::make_unique<InternalLinkProxy>(
-            get_arg("server"), port, td_api::make_object<td_api::proxyTypeMtproto>(r_secret.ok().get_encoded_secret()));
-      } else {
-        return td::make_unique<InternalLinkUnsupportedProxy>();
-      }
-    }
-  } else if (path.size() == 1 && path[0] == "privatepost") {
-    // privatepost?channel=123456789&post=12345&single&thread=<thread_id>&comment=<message_id>&t=<media_timestamp>
-    if (has_arg("channel") && has_arg("post")) {
-      return td::make_unique<InternalLinkMessage>(
-          PSTRING() << "tg://privatepost" << copy_arg("channel") << copy_arg("post") << copy_arg("single")
-                    << copy_arg("thread") << copy_arg("comment") << copy_arg("t"));
-    }
-  } else if (path.size() == 1 && path[0] == "boost") {
-    // boost?domain=channel_username
-    // boost?channel=123456
-    if (has_arg("domain")) {
-      return td::make_unique<InternalLinkDialogBoost>(PSTRING() << "tg://boost" << copy_arg("domain"));
-    }
-    if (has_arg("channel")) {
-      return td::make_unique<InternalLinkDialogBoost>(PSTRING() << "tg://boost" << copy_arg("channel"));
-    }
-  } else if (path.size() == 1 && path[0] == "bg") {
-    // bg?color=<color>
-    // bg?gradient=<hex_color>-<hex_color>&rotation=...
-    // bg?gradient=<hex_color>~<hex_color>~<hex_color>~<hex_color>
-    // bg?slug=<background_name>&mode=blur+motion
-    // bg?slug=<pattern_name>&intensity=...&bg_color=...&mode=blur+motion
-    if (has_arg("color")) {
-      return td::make_unique<InternalLinkBackground>(pass_arg("color"));
-    }
-    if (has_arg("gradient")) {
-      return td::make_unique<InternalLinkBackground>(PSTRING() << pass_arg("gradient") << copy_arg("rotation"));
-    }
-    if (has_arg("slug")) {
-      return td::make_unique<InternalLinkBackground>(PSTRING()
-                                                     << pass_arg("slug") << copy_arg("mode") << copy_arg("intensity")
-                                                     << copy_arg("bg_color") << copy_arg("rotation"));
-    }
-  } else if (path.size() == 1 && path[0] == "invoice") {
-    // invoice?slug=<invoice_name>
-    if (has_arg("slug")) {
-      return td::make_unique<InternalLinkInvoice>(url_query.get_arg("slug").str());
-    }
-  } else if (path.size() == 1 && path[0] == "giftcode") {
-    // giftcode?slug=<code>
-    if (has_arg("slug")) {
-      return td::make_unique<InternalLinkPremiumGiftCode>(url_query.get_arg("slug").str());
-    }
-  } else if (path.size() == 1 && path[0] == "message") {
-    // message?slug=<name>
-    if (has_arg("slug")) {
-      return td::make_unique<InternalLinkBusinessChat>(url_query.get_arg("slug").str());
-    }
-  } else if (path.size() == 1 && (path[0] == "share" || path[0] == "msg" || path[0] == "msg_url")) {
-    // msg_url?url=<url>
-    // msg_url?url=<url>&text=<text>
-    return get_internal_link_message_draft(get_arg("url"), get_arg("text"));
-  } else if (path.size() == 1 && path[0] == "stars_topup") {
-    // stars_topup?balance=<star_count>&purpose=<purpose>
-    if (has_arg("balance")) {
-      return td::make_unique<InternalLinkBuyStars>(to_integer<int64>(url_query.get_arg("balance")),
-                                                   url_query.get_arg("purpose").str());
-    }
-  }
-  if (!path.empty() && !path[0].empty()) {
-    return td::make_unique<InternalLinkUnknownDeepLink>(PSTRING() << "tg://" << query);
-  }
-  return nullptr;
-}
-
-unique_ptr<LinkManager::InternalLink> LinkManager::parse_t_me_link_query(Slice query, bool is_trusted) {
-  CHECK(query[0] == '/');
-  const auto url_query = parse_url_query(query);
-  const auto &path = url_query.path_;
-  if (path.empty() || path[0].empty()) {
-    return nullptr;
-  }
-
-  bool is_first_arg = true;
-  auto copy_arg = [&](Slice name) {
-    return CopyArg(name, &url_query, &is_first_arg);
-  };
-
-  auto get_arg = [&](Slice name) {
-    return url_query.get_arg(name).str();
-  };
-  auto has_arg = [&](Slice name) {
-    return !url_query.get_arg(name).empty();
-  };
-
-  if (path[0] == "c") {
-    if (path.size() >= 3 && to_integer<int64>(path[1]) > 0 && to_integer<int64>(path[2]) > 0) {
-      // /c/123456789/12345?single&thread=<thread_id>&comment=<message_id>&t=<media_timestamp>
-      // /c/123456789/1234/12345?single&comment=<message_id>&t=<media_timestamp>
-      is_first_arg = false;
-      auto post = to_integer<int64>(path[2]);
-      auto thread = PSTRING() << copy_arg("thread");
-      if (path.size() >= 4 && to_integer<int64>(path[3]) > 0) {
-        thread = PSTRING() << "&thread=" << post;
-        post = to_integer<int64>(path[3]);
-      }
-      return td::make_unique<InternalLinkMessage>(PSTRING() << "tg://privatepost?channel=" << to_integer<int64>(path[1])
-                                                            << "&post=" << post << copy_arg("single") << thread
-                                                            << copy_arg("comment") << copy_arg("t"));
-    } else if (path.size() >= 2 && to_integer<int64>(path[1]) > 0 && url_query.has_arg("boost")) {
-      // /c/123456789?boost
-      return td::make_unique<InternalLinkDialogBoost>(PSTRING() << "tg://boost?channel=" << to_integer<int64>(path[1]));
-    }
-  } else if (path[0] == "login") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /login/<code>
-      return td::make_unique<InternalLinkAuthenticationCode>(path[1]);
-    }
-  } else if (path[0] == "addlist") {
-    auto slug = get_url_query_slug(false, url_query);
-    if (!slug.empty() && is_base64url_characters(slug)) {
-      // /addlist/<slug>
-      return td::make_unique<InternalLinkDialogFolderInvite>(get_dialog_filter_invite_link(slug, true));
-    }
-  } else if (path[0] == "joinchat") {
-    auto invite_hash = get_url_query_hash(false, url_query);
-    if (!invite_hash.empty() && !is_valid_phone_number(invite_hash) && is_base64url_characters(invite_hash)) {
-      // /joinchat/<hash>
-      return td::make_unique<InternalLinkDialogInvite>(get_dialog_invite_link(invite_hash, true));
-    }
-  } else if (path[0][0] == ' ' || path[0][0] == '+') {
-    auto invite_hash = get_url_query_hash(false, url_query);
-    if (is_valid_phone_number(invite_hash)) {
-      if (!url_query.get_arg("attach").empty()) {
-        // /+<phone_number>?attach=<bot_username>
-        // /+<phone_number>?attach=<bot_username>&startattach=<start_parameter>
-        return td::make_unique<InternalLinkAttachMenuBot>(
-            nullptr, td::make_unique<InternalLinkUserPhoneNumber>(invite_hash, string(), false),
-            url_query.get_arg("attach").str(), url_query.get_arg("startattach"));
-      }
-      // /+<phone_number>
-      return td::make_unique<InternalLinkUserPhoneNumber>(invite_hash, get_url_query_draft_text(url_query),
-                                                          url_query.has_arg("profile"));
-    } else if (!invite_hash.empty() && is_base64url_characters(invite_hash)) {
-      // /+<link>
-      return td::make_unique<InternalLinkDialogInvite>(get_dialog_invite_link(invite_hash, true));
-    }
-  } else if (path[0] == "nft") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /nft/<slug>
-      string name = path[1];
-      for (std::size_t i = 2; i < path.size(); i++) {
-        name += '/';
-        name += path[i];
-      }
-      return td::make_unique<InternalLinkUpgradedGift>(name);
-    }
-  } else if (path[0] == "contact") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /contact/<token>
-      return td::make_unique<InternalLinkUserToken>(path[1]);
-    }
-  } else if (path[0] == "addstickers" || path[0] == "addemoji") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /addstickers/<name>
-      // /addemoji/<name>
-      return td::make_unique<InternalLinkStickerSet>(path[1], path[0] == "addemoji");
-    }
-  } else if (path[0] == "setlanguage") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /setlanguage/<name>
-      return td::make_unique<InternalLinkLanguage>(path[1]);
-    }
-  } else if (path[0] == "addtheme") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /addtheme/<name>
-      return td::make_unique<InternalLinkTheme>(path[1]);
-    }
-  } else if (path[0] == "confirmphone") {
-    if (has_arg("hash") && has_arg("phone")) {
-      // /confirmphone?phone=<phone>&hash=<hash>
-      return td::make_unique<InternalLinkConfirmPhone>(get_arg("hash"), get_arg("phone"));
-    }
-  } else if (path[0] == "socks") {
-    if (has_arg("server") && has_arg("port")) {
-      // /socks?server=<server>&port=<port>&user=<user>&pass=<pass>
-      auto port = to_integer<int32>(get_arg("port"));
-      if (0 < port && port < 65536) {
-        return td::make_unique<InternalLinkProxy>(
-            get_arg("server"), port, td_api::make_object<td_api::proxyTypeSocks5>(get_arg("user"), get_arg("pass")));
-      } else {
-        return td::make_unique<InternalLinkUnsupportedProxy>();
-      }
-    }
-  } else if (path[0] == "proxy") {
-    if (has_arg("server") && has_arg("port")) {
-      // /proxy?server=<server>&port=<port>&secret=<secret>
-      auto port = to_integer<int32>(get_arg("port"));
-      auto r_secret = mtproto::ProxySecret::from_link(get_arg("secret"));
-      if (0 < port && port < 65536 && r_secret.is_ok()) {
-        return td::make_unique<InternalLinkProxy>(
-            get_arg("server"), port, td_api::make_object<td_api::proxyTypeMtproto>(r_secret.ok().get_encoded_secret()));
-      } else {
-        return td::make_unique<InternalLinkUnsupportedProxy>();
-      }
-    }
-  } else if (path[0] == "bg") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /bg/<hex_color>
-      // /bg/<hex_color>-<hex_color>?rotation=...
-      // /bg/<hex_color>~<hex_color>~<hex_color>~<hex_color>
-      // /bg/<background_name>?mode=blur+motion
-      // /bg/<pattern_name>?intensity=...&bg_color=...&mode=blur+motion
-      if (BackgroundType::is_background_name_local(path[1])) {
-        return td::make_unique<InternalLinkBackground>(PSTRING() << url_encode(path[1]) << copy_arg("rotation"));
-      }
-      return td::make_unique<InternalLinkBackground>(PSTRING()
-                                                     << url_encode(path[1]) << copy_arg("mode") << copy_arg("intensity")
-                                                     << copy_arg("bg_color") << copy_arg("rotation"));
-    }
-  } else if (path[0] == "invoice") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /invoice/<name>
-      return td::make_unique<InternalLinkInvoice>(path[1]);
-    }
-  } else if (path[0] == "giftcode") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /giftcode/<code>
-      return td::make_unique<InternalLinkPremiumGiftCode>(path[1]);
-    }
-  } else if (path[0] == "m") {
-    if (path.size() >= 2 && !path[1].empty()) {
-      // /m/<link_name>
-      return td::make_unique<InternalLinkBusinessChat>(path[1]);
-    }
-  } else if (path[0][0] == '$') {
-    if (path[0].size() >= 2) {
-      // /$<invoice_name>
-      return td::make_unique<InternalLinkInvoice>(path[0].substr(1));
-    }
-  } else if (path[0] == "share" || path[0] == "msg") {
-    if (!(path.size() > 1 && (path[1] == "bookmarklet" || path[1] == "embed"))) {
-      // /share?url=<url>
-      // /share?url=<url>&text=<text>
-      return get_internal_link_message_draft(get_arg("url"), get_arg("text"));
-    }
-  } else if (path[0] == "iv") {
-    if (path.size() == 1 && has_arg("url")) {
-      // /iv?url=<url>&rhash=<rhash>
-      return td::make_unique<InternalLinkInstantView>(
-          PSTRING() << get_t_me_url() << "iv" << copy_arg("url") << copy_arg("rhash"), get_arg("url"));
-    }
-  } else if (is_valid_username(path[0]) && path[0] != "i") {
-    if (path.size() >= 2 && to_integer<int64>(path[1]) > 0) {
-      // /<username>/12345?single&thread=<thread_id>&comment=<message_id>&t=<media_timestamp>
-      // /<username>/1234/12345?single&comment=<message_id>&t=<media_timestamp>
-      is_first_arg = false;
-      auto post = to_integer<int64>(path[1]);
-      auto thread = PSTRING() << copy_arg("thread");
-      if (path.size() >= 3 && to_integer<int64>(path[2]) > 0) {
-        thread = PSTRING() << "&thread=" << post;
-        post = to_integer<int64>(path[2]);
-      }
-      return td::make_unique<InternalLinkMessage>(PSTRING() << "tg://resolve?domain=" << url_encode(path[0])
-                                                            << "&post=" << post << copy_arg("single") << thread
-                                                            << copy_arg("comment") << copy_arg("t"));
-    }
-    auto username = path[0];
-    if (to_lower(username) == "boost") {
-      if (path.size() == 2 && is_valid_username(path[1])) {
-        // /boost/<username>
-        return td::make_unique<InternalLinkDialogBoost>(PSTRING() << "tg://boost?domain=" << url_encode(path[1]));
-      }
-      auto channel_id = url_query.get_arg("c");
-      if (path.size() == 1 && to_integer<int64>(channel_id) > 0) {
-        // /boost?c=<channel_id>
-        return td::make_unique<InternalLinkDialogBoost>(PSTRING()
-                                                        << "tg://boost?channel=" << to_integer<int64>(channel_id));
-      }
-    }
-    if (path.size() == 3 && path[1] == "s" && is_valid_story_id(path[2])) {
-      // /<username>/s/<story_id>
-      return td::make_unique<InternalLinkStory>(std::move(username), StoryId(to_integer<int32>(path[2])));
-    }
-    if (path.size() == 2 && is_valid_web_app_name(path[1])) {
-      // /<username>/<web_app_name>
-      // /<username>/<web_app_name>?startapp=<start_parameter>&mode=compact
-      return td::make_unique<InternalLinkWebApp>(std::move(username), path[1], url_query.get_arg("startapp").str(),
-                                                 url_query.get_arg("mode").str());
-    }
-    for (auto &arg : url_query.args_) {
-      if (arg.first == "voicechat" || arg.first == "videochat" || arg.first == "livestream") {
-        // /<username>?videochat
-        // /<username>?videochat=<invite_hash>
-        if (Scheduler::context() != nullptr) {
-          send_closure(G()->dialog_manager(), &DialogManager::reload_voice_chat_on_search, username);
-        }
-        return td::make_unique<InternalLinkVoiceChat>(std::move(username), arg.second, arg.first == "livestream");
-      }
-      if (arg.first == "boost") {
-        // /<username>?boost
-        return td::make_unique<InternalLinkDialogBoost>(PSTRING() << "tg://boost?domain=" << url_encode(username));
-      }
-      if (arg.first == "ref" && is_valid_start_parameter(arg.second) && !arg.second.empty()) {
-        // /<bot_username>?ref=<referrer>
-        return td::make_unique<InternalLinkDialogReferralProgram>(std::move(username), std::move(arg.second));
-      }
-      if (arg.first == "start" && is_valid_start_parameter(arg.second)) {
-        auto prefixes = get_referral_program_start_parameter_prefixes();
-        for (Slice prefix : prefixes) {
-          if (begins_with(arg.second, prefix) && arg.second.size() > prefix.size()) {
-            // /<bot_username>?start=_tgr_<referrer>
-            return td::make_unique<InternalLinkDialogReferralProgram>(std::move(username),
-                                                                      arg.second.substr(prefix.size()));
-          }
-        }
-        // /<bot_username>?start=<parameter>
-        return td::make_unique<InternalLinkBotStart>(std::move(username), arg.second, is_trusted);
-      }
-      if (arg.first == "startgroup" && is_valid_start_parameter(arg.second)) {
-        // /<bot_username>?startgroup=<parameter>
-        // /<bot_username>?startgroup=<parameter>&admin=change_info+delete_messages+restrict_members
-        // /<bot_username>?startgroup&admin=change_info+delete_messages+restrict_members
-        auto administrator_rights = get_administrator_rights(url_query.get_arg("admin"), false);
-        return td::make_unique<InternalLinkBotStartInGroup>(std::move(username), arg.second,
-                                                            std::move(administrator_rights));
-      }
-      if (arg.first == "startchannel") {
-        // /<bot_username>?startchannel&admin=change_info+post_messages+promote_members
-        auto administrator_rights = get_administrator_rights(url_query.get_arg("admin"), true);
-        if (administrator_rights != AdministratorRights()) {
-          return td::make_unique<InternalLinkBotAddToChannel>(std::move(username), std::move(administrator_rights));
-        }
-      }
-      if (arg.first == "startapp" && is_valid_start_parameter(arg.second)) {
-        // /<bot_username>?startapp
-        // /<bot_username>?startapp=<parameter>&mode=compact
-        return td::make_unique<InternalLinkMainWebApp>(std::move(username), arg.second,
-                                                       url_query.get_arg("mode").str());
-      }
-      if (arg.first == "game" && is_valid_game_name(arg.second)) {
-        // /<bot_username>?game=<short_name>
-        return td::make_unique<InternalLinkGame>(std::move(username), arg.second);
-      }
-    }
-    if (!url_query.get_arg("attach").empty()) {
-      // /<username>?attach=<bot_username>
-      // /<username>?attach=<bot_username>&startattach=<start_parameter>
-      return td::make_unique<InternalLinkAttachMenuBot>(
-          nullptr, td::make_unique<InternalLinkPublicDialog>(std::move(username), string(), false),
-          url_query.get_arg("attach").str(), url_query.get_arg("startattach"));
-    } else if (url_query.has_arg("startattach")) {
-      // /<bot_username>?startattach&choose=users+bots+groups+channels
-      // /<bot_username>?startattach=<start_parameter>&choose=users+bots+groups+channels
-      return td::make_unique<InternalLinkAttachMenuBot>(get_target_chat_types(url_query.get_arg("choose")), nullptr,
-                                                        std::move(username), url_query.get_arg("startattach"));
-    }
-
-    // /<username>
-    return td::make_unique<InternalLinkPublicDialog>(std::move(username), get_url_query_draft_text(url_query),
-                                                     url_query.has_arg("profile"));
-  }
-  return nullptr;
-}
-
-unique_ptr<LinkManager::InternalLink> LinkManager::get_internal_link_message_draft(Slice url, Slice text) {
-  if (url.empty() && text.empty()) {
-    return nullptr;
-  }
-  while (!text.empty() && text.back() == '\n') {
-    text.remove_suffix(1);
-  }
-  url = trim(url);
-  if (url.empty()) {
-    url = text;
-    text = Slice();
-  }
-  FormattedText full_text;
-  bool contains_url = false;
-  if (!text.empty()) {
-    contains_url = true;
-    full_text.text = PSTRING() << url << '\n' << text;
-  } else {
-    full_text.text = url.str();
-  }
-  if (fix_formatted_text(full_text.text, full_text.entities, false, false, false, true, true).is_error()) {
-    return nullptr;
-  }
-  if (full_text.text[0] == '@') {
-    full_text.text = ' ' + full_text.text;
-    for (auto &entity : full_text.entities) {
-      entity.offset++;
-    }
-  }
-  return td::make_unique<InternalLinkMessageDraft>(std::move(full_text), contains_url);
-}
-
-unique_ptr<LinkManager::InternalLink> LinkManager::get_internal_link_passport(
-    Slice query, const vector<std::pair<string, string>> &args, bool allow_unknown) {
-  auto get_arg = [&args](Slice key) {
-    for (auto &arg : args) {
-      if (arg.first == key) {
-        return Slice(arg.second);
-      }
-    }
-    return Slice();
-  };
-
-  UserId bot_user_id(to_integer<int64>(get_arg("bot_id")));
-  auto scope = get_arg("scope");
-  auto public_key = get_arg("public_key");
-  auto nonce = get_arg("nonce");
-  if (nonce.empty()) {
-    nonce = get_arg("payload");
-  }
-  auto callback_url = get_arg("callback_url");
-
-  if (!bot_user_id.is_valid() || scope.empty() || public_key.empty() || nonce.empty()) {
-    if (!allow_unknown) {
-      return nullptr;
-    }
-    return td::make_unique<InternalLinkUnknownDeepLink>(PSTRING() << "tg://" << query);
-  }
-  return td::make_unique<InternalLinkPassportDataRequest>(bot_user_id, scope.str(), public_key.str(), nonce.str(),
-                                                          callback_url.str());
-}
-
-Result<string> LinkManager::get_internal_link(const td_api::object_ptr<td_api::InternalLinkType> &type,
-                                              bool is_internal) {
-  if (type == nullptr) {
-    return Status::Error(400, "Link type must be non-empty");
-  }
-  return get_internal_link_impl(type.get(), is_internal);
-}
-
-Result<string> LinkManager::get_internal_link_impl(const td_api::InternalLinkType *type_ptr, bool is_internal) {
-  switch (type_ptr->get_id()) {
-    case td_api::internalLinkTypeActiveSessions::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings/devices";
-    case td_api::internalLinkTypeAttachmentMenuBot::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeAttachmentMenuBot *>(type_ptr);
-      if (!is_valid_username(link->bot_username_)) {
-        return Status::Error(400, "Invalid bot username specified");
-      }
-      string start_parameter;
-      if (!link->url_.empty()) {
-        if (!begins_with(link->url_, "start://")) {
-          return Status::Error(400, "Unsupported link URL specified");
-        }
-        auto start_parameter_slice = Slice(link->url_).substr(8);
-        if (start_parameter_slice.empty() || !is_valid_start_parameter(start_parameter_slice)) {
-          return Status::Error(400, "Invalid start parameter specified");
-        }
-        start_parameter = PSTRING() << '=' << start_parameter_slice;
-      }
-      if (link->target_chat_ == nullptr) {
-        return Status::Error(400, "Target chat must be non-empty");
-      }
-      switch (link->target_chat_->get_id()) {
-        case td_api::targetChatChosen::ID: {
-          auto dialog_types = static_cast<const td_api::targetChatChosen *>(link->target_chat_.get())->types_.get();
-          vector<string> types;
-          if (dialog_types != nullptr) {
-            if (dialog_types->allow_user_chats_) {
-              types.push_back("users");
-            }
-            if (dialog_types->allow_bot_chats_) {
-              types.push_back("bots");
-            }
-            if (dialog_types->allow_group_chats_) {
-              types.push_back("groups");
-            }
-            if (dialog_types->allow_channel_chats_) {
-              types.push_back("channels");
-            }
-          }
-          if (types.empty()) {
-            return Status::Error(400, "At least one target chat type must be allowed");
-          }
-          auto choose = implode(types, '+');
-          if (is_internal) {
-            return PSTRING() << "tg://resolve?domain=" << link->bot_username_ << "&startattach" << start_parameter
-                             << "&choose=" << choose;
-          } else {
-            return PSTRING() << get_t_me_url() << link->bot_username_ << "?startattach" << start_parameter
-                             << "&choose=" << choose;
-          }
-        }
-        case td_api::targetChatCurrent::ID:
-          if (is_internal) {
-            return PSTRING() << "tg://resolve?domain=" << link->bot_username_ << "&startattach" << start_parameter;
-          } else {
-            return PSTRING() << get_t_me_url() << link->bot_username_ << "?startattach" << start_parameter;
-          }
-        case td_api::targetChatInternalLink::ID: {
-          auto target = static_cast<const td_api::targetChatInternalLink *>(link->target_chat_.get());
-          if (!start_parameter.empty()) {
-            start_parameter = "&startattach" + start_parameter;
-          }
-          if (target->link_ == nullptr || target->link_->get_id() != td_api::internalLinkTypePublicChat::ID) {
-            if (target->link_->get_id() == td_api::internalLinkTypeUserPhoneNumber::ID) {
-              auto user_phone_number_link =
-                  static_cast<const td_api::internalLinkTypeUserPhoneNumber *>(target->link_.get());
-              if (user_phone_number_link->open_profile_) {
-                return Status::Error(400, "Link must not open chat profile information screen");
-              }
-              string phone_number;
-              if (user_phone_number_link->phone_number_[0] == '+') {
-                phone_number = user_phone_number_link->phone_number_.substr(1);
-              } else {
-                phone_number = user_phone_number_link->phone_number_;
-              }
-              if (!is_valid_phone_number(phone_number)) {
-                return Status::Error(400, "Invalid target phone number specified");
-              }
-              if (is_internal) {
-                return PSTRING() << "tg://resolve?phone=+" << phone_number << "&attach=" << link->bot_username_
-                                 << start_parameter;
-              } else {
-                return PSTRING() << get_t_me_url() << '+' << phone_number << "?attach=" << link->bot_username_
-                                 << start_parameter;
-              }
-            }
-            return Status::Error(400, "Unsupported target link specified");
-          }
-          auto public_chat_link = static_cast<const td_api::internalLinkTypePublicChat *>(target->link_.get());
-          if (public_chat_link->open_profile_) {
-            return Status::Error(400, "Link must not open chat profile information screen");
-          }
-          if (!is_valid_username(public_chat_link->chat_username_)) {
-            return Status::Error(400, "Invalid target public chat username specified");
-          }
-          if (is_internal) {
-            return PSTRING() << "tg://resolve?domain=" << public_chat_link->chat_username_
-                             << "&attach=" << link->bot_username_ << start_parameter;
-          } else {
-            return PSTRING() << get_t_me_url() << public_chat_link->chat_username_ << "?attach=" << link->bot_username_
-                             << start_parameter;
-          }
-        }
-        default:
-          UNREACHABLE();
-      }
-      break;
-    }
-    case td_api::internalLinkTypeAuthenticationCode::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeAuthenticationCode *>(type_ptr);
-      if (is_internal) {
-        return PSTRING() << "tg://login?code=" << url_encode(link->code_);
-      } else {
-        return PSTRING() << get_t_me_url() << "login/" << url_encode(link->code_);
-      }
-    }
-    case td_api::internalLinkTypeBackground::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeBackground *>(type_ptr);
-      auto params_pos = link->background_name_.find('?');
-      string slug = params_pos >= link->background_name_.size() ? link->background_name_
-                                                                : link->background_name_.substr(0, params_pos);
-      if (slug.empty()) {
-        return Status::Error(400, "Background name must be non-empty");
-      }
-
-      if (BackgroundType::is_background_name_local(slug)) {
-        TRY_RESULT(background_type, BackgroundType::get_local_background_type(link->background_name_));
-        auto background_link = background_type.get_link(!is_internal);
-        CHECK(!background_type.has_file());
-        if (is_internal) {
-          Slice field_name = background_type.has_gradient_fill() ? Slice("gradient") : Slice("color");
-          return PSTRING() << "tg://bg?" << field_name << '=' << background_link;
-        } else {
-          return PSTRING() << get_t_me_url() << "bg/" << background_link;
-        }
-      }
-
-      auto prefix = is_internal ? string("tg://bg?slug=") : get_t_me_url() + "bg/";
-      const auto url_query = parse_url_query(link->background_name_);
-
-      bool is_first_arg = !is_internal;
-      auto copy_arg = [&](Slice name) {
-        return CopyArg(name, &url_query, &is_first_arg);
-      };
-      return PSTRING() << prefix << url_encode(slug) << copy_arg("mode") << copy_arg("intensity")
-                       << copy_arg("bg_color") << copy_arg("rotation");
-    }
-    case td_api::internalLinkTypeBotAddToChannel::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeBotAddToChannel *>(type_ptr);
-      if (!is_valid_username(link->bot_username_)) {
-        return Status::Error(400, "Invalid bot username specified");
-      }
-      auto admin = get_admin_string(AdministratorRights(link->administrator_rights_, ChannelType::Broadcast));
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->bot_username_ << "&startchannel" << admin;
-      } else {
-        return PSTRING() << get_t_me_url() << link->bot_username_ << "?startchannel" << admin;
-      }
-    }
-    case td_api::internalLinkTypeBotStart::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeBotStart *>(type_ptr);
-      if (link->autostart_) {
-        return Status::Error(400, "Can't create an autostart bot link");
-      }
-      if (!is_valid_username(link->bot_username_)) {
-        return Status::Error(400, "Invalid bot username specified");
-      }
-      if (!is_valid_start_parameter(link->start_parameter_)) {
-        return Status::Error(400, "Invalid start parameter specified");
-      }
-      auto start_parameter = link->start_parameter_.empty() ? string() : "=" + link->start_parameter_;
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->bot_username_ << "&start" << start_parameter;
-      } else {
-        return PSTRING() << get_t_me_url() << link->bot_username_ << "?start" << start_parameter;
-      }
-    }
-    case td_api::internalLinkTypeBotStartInGroup::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeBotStartInGroup *>(type_ptr);
-      if (!is_valid_username(link->bot_username_)) {
-        return Status::Error(400, "Invalid bot username specified");
-      }
-      if (!is_valid_start_parameter(link->start_parameter_)) {
-        return Status::Error(400, "Invalid start parameter specified");
-      }
-      auto admin = get_admin_string(AdministratorRights(link->administrator_rights_, ChannelType::Megagroup));
-      auto start_parameter = link->start_parameter_.empty() ? string() : "=" + link->start_parameter_;
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->bot_username_ << "&startgroup" << start_parameter << admin;
-      } else {
-        return PSTRING() << get_t_me_url() << link->bot_username_ << "?startgroup" << start_parameter << admin;
-      }
-    }
-    case td_api::internalLinkTypeBusinessChat::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeBusinessChat *>(type_ptr);
-      if (is_internal) {
-        return PSTRING() << "tg://message?slug=" << url_encode(link->link_name_);
-      } else {
-        return PSTRING() << get_t_me_url() << "m/" << url_encode(link->link_name_);
-      }
-    }
-    case td_api::internalLinkTypeBuyStars::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeBuyStars *>(type_ptr);
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      if (link->star_count_ <= 0) {
-        return Status::Error(400, "Invalid Telegram Star number provided");
-      }
-      return PSTRING() << "tg://stars_topup?balance=" << link->star_count_ << "&purpose=" << url_encode(link->purpose_);
-    }
-    case td_api::internalLinkTypeChangePhoneNumber::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings/change_number";
-    case td_api::internalLinkTypeChatAffiliateProgram::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeChatAffiliateProgram *>(type_ptr);
-      if (!is_valid_username(link->username_)) {
-        return Status::Error(400, "Invalid username specified");
-      }
-      if (!is_valid_start_parameter(link->referrer_) || link->referrer_.empty()) {
-        return Status::Error(400, "Invalid referrer specified");
-      }
-      auto start_parameter = PSTRING() << "start=" << get_referral_program_start_parameter_prefixes()[0]
-                                       << link->referrer_;
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->username_ << "&" << start_parameter;
-      } else {
-        return PSTRING() << get_t_me_url() << link->username_ << "?" << start_parameter;
-      }
-    }
-    case td_api::internalLinkTypeChatBoost::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeChatBoost *>(type_ptr);
-      auto parsed_link = parse_internal_link(link->url_);
-      if (parsed_link == nullptr) {
-        return Status::Error(400, "Invalid chat boost URL specified");
-      }
-      auto parsed_object = parsed_link->get_internal_link_type_object();
-      if (parsed_object->get_id() != td_api::internalLinkTypeChatBoost::ID) {
-        return Status::Error(400, "Invalid chat boost URL specified");
-      }
-      if (!is_internal) {
-        return Status::Error(400, "Use getChatBoostLink to get an HTTPS link to boost a chat");
-      }
-      return std::move(static_cast<td_api::internalLinkTypeChatBoost &>(*parsed_object).url_);
-    }
-    case td_api::internalLinkTypeChatFolderInvite::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeChatFolderInvite *>(type_ptr);
-      auto slug = get_dialog_filter_invite_link_slug(link->invite_link_);
-      if (slug.empty()) {
-        return Status::Error(400, "Invalid invite link specified");
-      }
-      return get_dialog_filter_invite_link(slug, is_internal);
-    }
-    case td_api::internalLinkTypeChatFolderSettings::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings/folders";
-    case td_api::internalLinkTypeChatInvite::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeChatInvite *>(type_ptr);
-      auto invite_hash = get_dialog_invite_link_hash(link->invite_link_);
-      if (invite_hash.empty()) {
-        return Status::Error(400, "Invalid invite link specified");
-      }
-      return get_dialog_invite_link(invite_hash, is_internal);
-    }
-    case td_api::internalLinkTypeDefaultMessageAutoDeleteTimerSettings::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings/auto_delete";
-    case td_api::internalLinkTypeEditProfileSettings::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings/edit_profile";
-    case td_api::internalLinkTypeGame::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeGame *>(type_ptr);
-      if (!is_valid_username(link->bot_username_)) {
-        return Status::Error(400, "Invalid bot username specified");
-      }
-      if (!is_valid_game_name(link->game_short_name_)) {
-        return Status::Error(400, "Invalid game name specified");
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->bot_username_ << "&game=" << link->game_short_name_;
-      } else {
-        return PSTRING() << get_t_me_url() << link->bot_username_ << "?game=" << link->game_short_name_;
-      }
-    }
-    case td_api::internalLinkTypeInstantView::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeInstantView *>(type_ptr);
-      if (is_internal) {
-        return Status::Error("Deep link is unavailable for the link type");
-      }
-      auto info = get_link_info(link->url_);
-      auto fallback_info = get_link_info(link->fallback_url_);
-      switch (info.type_) {
-        case LinkType::External:
-        case LinkType::Tg:
-          return Status::Error("Invalid instant view URL provided");
-        case LinkType::Telegraph:
-          if (fallback_info.type_ != LinkType::Telegraph ||
-              link->url_ != (PSLICE() << "https://telegra.ph" << fallback_info.query_)) {
-            return Status::Error("Unrelated fallback URL provided");
-          }
-          return link->fallback_url_;
-        case LinkType::TMe:
-          // skip URL and fallback_url consistency checks
-          return link->url_;
-        default:
-          UNREACHABLE();
-          break;
-      }
-    }
-    case td_api::internalLinkTypeInvoice::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeInvoice *>(type_ptr);
-      if (is_internal) {
-        return PSTRING() << "tg://invoice?slug=" << url_encode(link->invoice_name_);
-      } else {
-        return PSTRING() << get_t_me_url() << '$' << url_encode(link->invoice_name_);
-      }
-    }
-    case td_api::internalLinkTypeLanguagePack::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeLanguagePack *>(type_ptr);
-      if (is_internal) {
-        return PSTRING() << "tg://setlanguage?lang=" << url_encode(link->language_pack_id_);
-      } else {
-        return PSTRING() << get_t_me_url() << "setlanguage/" << url_encode(link->language_pack_id_);
-      }
-    }
-    case td_api::internalLinkTypeLanguageSettings::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings/language";
-    case td_api::internalLinkTypeMainWebApp::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeMainWebApp *>(type_ptr);
-      if (!is_valid_username(link->bot_username_)) {
-        return Status::Error(400, "Invalid bot username specified");
-      }
-      string start_parameter;
-      if (!link->start_parameter_.empty()) {
-        if (!is_valid_start_parameter(link->start_parameter_)) {
-          return Status::Error(400, "Invalid start parameter specified");
-        }
-        start_parameter = PSTRING() << '=' << link->start_parameter_;
-      }
-      string mode;
-      if (link->mode_ != nullptr) {
-        switch (link->mode_->get_id()) {
-          case td_api::webAppOpenModeCompact::ID:
-            mode = "&mode=compact";
-            break;
-          case td_api::webAppOpenModeFullSize::ID:
-            break;
-          case td_api::webAppOpenModeFullScreen::ID:
-            mode = "&mode=fullscreen";
-            break;
-          default:
-            UNREACHABLE();
-        }
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->bot_username_ << "&startapp" << start_parameter << mode;
-      } else {
-        return PSTRING() << get_t_me_url() << link->bot_username_ << "?startapp" << start_parameter << mode;
-      }
-    }
-    case td_api::internalLinkTypeMessage::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeMessage *>(type_ptr);
-      auto parsed_link = parse_internal_link(link->url_);
-      if (parsed_link == nullptr) {
-        return Status::Error(400, "Invalid message URL specified");
-      }
-      auto parsed_object = parsed_link->get_internal_link_type_object();
-      if (parsed_object->get_id() != td_api::internalLinkTypeMessage::ID) {
-        return Status::Error(400, "Invalid message URL specified");
-      }
-      if (!is_internal) {
-        return Status::Error(400, "Use getMessageLink to get an HTTPS link to a message");
-      }
-      return std::move(static_cast<td_api::internalLinkTypeMessage &>(*parsed_object).url_);
-    }
-    case td_api::internalLinkTypeMessageDraft::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeMessageDraft *>(type_ptr);
-      string text;
-      if (link->text_ != nullptr) {
-        text = std::move(link->text_->text_);
-      }
-      string url;
-      if (link->contains_link_) {
-        std::tie(url, text) = split(text, '\n');
-      } else {
-        url = std::move(text);
-        text.clear();
-      }
-      if (!text.empty()) {
-        text = "&text=" + url_encode(text);
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://msg_url?url=" << url_encode(url) << text;
-      } else {
-        return PSTRING() << get_t_me_url() << "share?url=" << url_encode(url) << text;
-      }
-    }
-    case td_api::internalLinkTypePassportDataRequest::ID: {
-      auto link = static_cast<const td_api::internalLinkTypePassportDataRequest *>(type_ptr);
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      if (!UserId(link->bot_user_id_).is_valid()) {
-        return Status::Error("Invalid bot user identifier specified");
-      }
-      return PSTRING() << "tg://resolve?domain=telegrampassport&bot_id=" << link->bot_user_id_
-                       << "&scope=" << url_encode(link->scope_) << "&public_key=" << url_encode(link->public_key_)
-                       << "&nonce=" << url_encode(link->nonce_) << "&callback_url=" << url_encode(link->callback_url_);
-    }
-    case td_api::internalLinkTypePhoneNumberConfirmation::ID: {
-      auto link = static_cast<const td_api::internalLinkTypePhoneNumberConfirmation *>(type_ptr);
-      if (is_internal) {
-        return PSTRING() << "tg://confirmphone?phone=" << url_encode(link->phone_number_)
-                         << "&hash=" << url_encode(link->hash_);
-      } else {
-        return PSTRING() << get_t_me_url() << "confirmphone?phone=" << url_encode(link->phone_number_)
-                         << "&hash=" << url_encode(link->hash_);
-      }
-    }
-    case td_api::internalLinkTypePremiumFeatures::ID: {
-      auto link = static_cast<const td_api::internalLinkTypePremiumFeatures *>(type_ptr);
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return PSTRING() << "tg://premium_offer?ref=" << url_encode(link->referrer_);
-    }
-    case td_api::internalLinkTypePremiumGift::ID: {
-      auto link = static_cast<const td_api::internalLinkTypePremiumGift *>(type_ptr);
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return PSTRING() << "tg://premium_multigift?ref=" << url_encode(link->referrer_);
-    }
-    case td_api::internalLinkTypePremiumGiftCode::ID: {
-      auto link = static_cast<const td_api::internalLinkTypePremiumGiftCode *>(type_ptr);
-      if (is_internal) {
-        return PSTRING() << "tg://giftcode?slug=" << url_encode(link->code_);
-      } else {
-        return PSTRING() << get_t_me_url() << "giftcode/" << url_encode(link->code_);
-      }
-    }
-    case td_api::internalLinkTypePrivacyAndSecuritySettings::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings/privacy";
-    case td_api::internalLinkTypeProxy::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeProxy *>(type_ptr);
-      TRY_RESULT(proxy, Proxy::create_proxy(link->server_, link->port_, link->type_.get()));
-      return get_proxy_link(proxy, is_internal);
-    }
-    case td_api::internalLinkTypePublicChat::ID: {
-      auto link = static_cast<const td_api::internalLinkTypePublicChat *>(type_ptr);
-      if (!is_valid_username(link->chat_username_)) {
-        return Status::Error(400, "Invalid chat username specified");
-      }
-      if (!check_utf8(link->draft_text_)) {
-        return Status::Error(400, "Draft text must be encoded in UTF-8");
-      }
-      return get_public_dialog_link(link->chat_username_, link->draft_text_, link->open_profile_, is_internal);
-    }
-    case td_api::internalLinkTypeQrCodeAuthentication::ID:
-      return Status::Error("The link must never be generated client-side");
-    case td_api::internalLinkTypeRestorePurchases::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://restore_purchases";
-    case td_api::internalLinkTypeSettings::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings";
-    case td_api::internalLinkTypeStickerSet::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeStickerSet *>(type_ptr);
-      if (link->sticker_set_name_.empty()) {
-        return Status::Error(400, "Invalid sticker set name specified");
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://add" << (link->expect_custom_emoji_ ? "emoji" : "stickers")
-                         << "?set=" << url_encode(link->sticker_set_name_);
-      } else {
-        return PSTRING() << get_t_me_url() << "add" << (link->expect_custom_emoji_ ? "emoji" : "stickers") << '/'
-                         << url_encode(link->sticker_set_name_);
-      }
-    }
-    case td_api::internalLinkTypeStory::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeStory *>(type_ptr);
-      if (!is_valid_username(link->story_sender_username_)) {
-        return Status::Error(400, "Invalid story sender username specified");
-      }
-      if (!StoryId(link->story_id_).is_server()) {
-        return Status::Error(400, "Invalid story identifier specified");
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->story_sender_username_ << "&story=" << link->story_id_;
-      } else {
-        return PSTRING() << get_t_me_url() << link->story_sender_username_ << "/s/" << link->story_id_;
-      }
-    }
-    case td_api::internalLinkTypeTheme::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeTheme *>(type_ptr);
-      if (link->theme_name_.empty()) {
-        return Status::Error(400, "Invalid theme name specified");
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://addtheme?slug=" << url_encode(link->theme_name_);
-      } else {
-        return PSTRING() << get_t_me_url() << "addtheme/" << url_encode(link->theme_name_);
-      }
-    }
-    case td_api::internalLinkTypeThemeSettings::ID:
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      return "tg://settings/themes";
-    case td_api::internalLinkTypeUnknownDeepLink::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeUnknownDeepLink *>(type_ptr);
-      if (!is_internal) {
-        return Status::Error("HTTP link is unavailable for the link type");
-      }
-      auto parsed_link = parse_internal_link(link->link_);
-      if (parsed_link == nullptr) {
-        return Status::Error(400, "Invalid deep link URL specified");
-      }
-      auto parsed_object = parsed_link->get_internal_link_type_object();
-      if (parsed_object->get_id() != td_api::internalLinkTypeUnknownDeepLink::ID) {
-        return Status::Error(400, "Invalid deep link URL specified");
-      }
-      return std::move(static_cast<td_api::internalLinkTypeUnknownDeepLink &>(*parsed_object).link_);
-    }
-    case td_api::internalLinkTypeUnsupportedProxy::ID:
-      if (is_internal) {
-        return "tg://proxy?port=-1&server=0.0.0.0";
-      } else {
-        return PSTRING() << get_t_me_url() << "proxy?port=-1&server=0.0.0.0";
-      }
-    case td_api::internalLinkTypeUpgradedGift::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeUpgradedGift *>(type_ptr);
-      if (link->name_.empty()) {
-        return Status::Error(400, "Invalid gift name specified");
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://nft?slug=" << link->name_;
-      } else {
-        return PSTRING() << get_t_me_url() << "nft/" << link->name_;
-      }
-    }
-    case td_api::internalLinkTypeUserPhoneNumber::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeUserPhoneNumber *>(type_ptr);
-      string phone_number;
-      if (link->phone_number_[0] == '+') {
-        phone_number = link->phone_number_.substr(1);
-      } else {
-        phone_number = link->phone_number_;
-      }
-      if (!is_valid_phone_number(phone_number)) {
-        return Status::Error(400, "Invalid phone number specified");
-      }
-      if (!check_utf8(link->draft_text_)) {
-        return Status::Error(400, "Draft text must be encoded in UTF-8");
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?phone=+" << phone_number << (link->draft_text_.empty() ? "" : "&text=")
-                         << url_encode(link->draft_text_) << (link->open_profile_ ? "&profile" : "");
-      } else {
-        bool has_draft = !link->draft_text_.empty();
-        return PSTRING() << get_t_me_url() << '+' << phone_number << (has_draft ? "?text=" : "")
-                         << url_encode(link->draft_text_)
-                         << (link->open_profile_ ? (has_draft ? "&profile" : "?profile") : "");
-      }
-    }
-    case td_api::internalLinkTypeUserToken::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeUserToken *>(type_ptr);
-      if (link->token_.empty()) {
-        return Status::Error(400, "Invalid user token specified");
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://contact?token=" << link->token_;
-      } else {
-        return PSTRING() << get_t_me_url() << "contact/" << link->token_;
-      }
-    }
-    case td_api::internalLinkTypeVideoChat::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeVideoChat *>(type_ptr);
-      if (!is_valid_username(link->chat_username_)) {
-        return Status::Error(400, "Invalid chat username specified");
-      }
-      string invite_hash;
-      if (!link->invite_hash_.empty()) {
-        invite_hash = '=' + url_encode(link->invite_hash_);
-      }
-      auto name = link->is_live_stream_ ? Slice("livestream") : Slice("videochat");
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->chat_username_ << '&' << name << invite_hash;
-      } else {
-        return PSTRING() << get_t_me_url() << link->chat_username_ << '?' << name << invite_hash;
-      }
-    }
-    case td_api::internalLinkTypeWebApp::ID: {
-      auto link = static_cast<const td_api::internalLinkTypeWebApp *>(type_ptr);
-      if (!is_valid_username(link->bot_username_)) {
-        return Status::Error(400, "Invalid bot username specified");
-      }
-      if (!is_valid_web_app_name(link->web_app_short_name_)) {
-        return Status::Error(400, "Invalid Web App name specified");
-      }
-      if (!is_valid_start_parameter(link->start_parameter_)) {
-        return Status::Error(400, "Invalid start parameter specified");
-      }
-      string mode;
-      if (link->mode_ != nullptr) {
-        switch (link->mode_->get_id()) {
-          case td_api::webAppOpenModeCompact::ID:
-            mode = "&mode=compact";
-            break;
-          case td_api::webAppOpenModeFullSize::ID:
-            break;
-          case td_api::webAppOpenModeFullScreen::ID:
-            mode = "&mode=fullscreen";
-            break;
-          default:
-            UNREACHABLE();
-        }
-      }
-      string parameters;
-      if (!link->start_parameter_.empty()) {
-        parameters = PSTRING() << (is_internal ? '&' : '?') << "startapp=" << link->start_parameter_ << mode;
-      } else if (!mode.empty()) {
-        if (!is_internal) {
-          mode[0] = '?';
-        }
-        parameters = std::move(mode);
-      }
-      if (is_internal) {
-        return PSTRING() << "tg://resolve?domain=" << link->bot_username_ << "&appname=" << link->web_app_short_name_
-                         << parameters;
-      } else {
-        return PSTRING() << get_t_me_url() << link->bot_username_ << '/' << link->web_app_short_name_ << parameters;
-      }
-    }
-    default:
-      break;
-  }
-  UNREACHABLE();
-  return Status::Error(500, "Unsupported");
-}
-
-void LinkManager::update_autologin_token(string autologin_token) {
-  autologin_update_time_ = Time::now();
-  autologin_token_ = std::move(autologin_token);
-}
-
-void LinkManager::update_autologin_domains(vector<string> autologin_domains, vector<string> url_auth_domains,
-                                           vector<string> whitelisted_domains) {
-  if (autologin_domains_ != autologin_domains) {
-    autologin_domains_ = std::move(autologin_domains);
-    G()->td_db()->get_binlog_pmc()->set("autologin_domains", implode(autologin_domains_, '\xFF'));
-  }
-  if (url_auth_domains_ != url_auth_domains) {
-    url_auth_domains_ = std::move(url_auth_domains);
-    G()->td_db()->get_binlog_pmc()->set("url_auth_domains", implode(url_auth_domains_, '\xFF'));
-  }
-  if (whitelisted_domains_ != whitelisted_domains) {
-    whitelisted_domains_ = std::move(whitelisted_domains);
-    G()->td_db()->get_binlog_pmc()->set("whitelisted_domains", implode(whitelisted_domains_, '\xFF'));
-  }
-}
-
-void LinkManager::get_recent_me_urls(const string &referrer, Promise<td_api::object_ptr<td_api::tMeUrls>> &&promise) {
-  td_->create_handler<GetRecentMeUrlsQuery>(std::move(promise))->send(referrer);
-}
-
-void LinkManager::get_deep_link_info(Slice link, Promise<td_api::object_ptr<td_api::deepLinkInfo>> &&promise) {
-  Slice link_scheme("tg:");
-  if (begins_with(link, link_scheme)) {
-    link.remove_prefix(link_scheme.size());
-    if (begins_with(link, "//")) {
-      link.remove_prefix(2);
-    }
-  }
-  size_t pos = 0;
-  while (pos < link.size() && link[pos] != '/' && link[pos] != '?' && link[pos] != '#') {
-    pos++;
-  }
-  link.truncate(pos);
-  td_->create_handler<GetDeepLinkInfoQuery>(std::move(promise))->send(link);
-}
-
-void LinkManager::get_external_link_info(string &&link, Promise<td_api::object_ptr<td_api::LoginUrlInfo>> &&promise) {
-  bool is_ton = false;
-  if (tolower_begins_with(link, "tonsite://")) {
-    link = link.substr(10);
-    is_ton = true;
-  }
-  auto default_result = td_api::make_object<td_api::loginUrlInfoOpen>(link, false);
-  if (G()->close_flag()) {
-    return promise.set_value(std::move(default_result));
-  }
-
-  auto r_url = parse_url(link);
-  if (r_url.is_error()) {
-    return promise.set_value(std::move(default_result));
-  }
-
-  auto url = r_url.move_as_ok();
-  if (!url.userinfo_.empty() || url.is_ipv6_) {
-    return promise.set_value(std::move(default_result));
-  }
-  if (is_ton || (url.host_.size() >= 4u && to_lower(url.host_.substr(url.host_.size() - 4)) == ".ton")) {
-    auto ton_proxy_address = td_->option_manager_->get_option_string("ton_proxy_address");
-    if (ton_proxy_address.empty()) {
-      return promise.set_value(std::move(default_result));
-    }
-    url.protocol_ = HttpUrl::Protocol::Https;
-    string new_host;
-    for (auto c : url.host_) {
-      if (c == '.') {
-        new_host += "-d";
-      } else if (c == '-') {
-        new_host += "-h";
-      } else {
-        new_host += c;
-      }
-    }
-    url.host_ = PSTRING() << new_host << '.' << ton_proxy_address;
-    default_result->url_ = url.get_url();
-  }
-
-  bool skip_confirmation = td::contains(whitelisted_domains_, url.host_);
-  default_result->skip_confirmation_ = skip_confirmation;
-
-  if (!td::contains(autologin_domains_, url.host_)) {
-    if (td::contains(url_auth_domains_, url.host_)) {
-      td_->create_handler<RequestUrlAuthQuery>(std::move(promise))->send(link, MessageFullId(), 0);
-      return;
-    }
-    return promise.set_value(std::move(default_result));
-  }
-
-  if (autologin_update_time_ < Time::now() - 10000) {
-    auto query_promise = PromiseCreator::lambda([link = std::move(link), default_result = std::move(default_result),
-                                                 promise = std::move(promise)](Result<Unit> &&result) mutable {
-      if (result.is_error()) {
-        return promise.set_value(std::move(default_result));
-      }
-      send_closure(G()->link_manager(), &LinkManager::get_external_link_info, std::move(link), std::move(promise));
-    });
-    return send_closure(G()->config_manager(), &ConfigManager::reget_config, std::move(query_promise));
-  }
-
-  if (autologin_token_.empty()) {
-    return promise.set_value(std::move(default_result));
-  }
-
-  url.protocol_ = HttpUrl::Protocol::Https;
-  Slice path = url.query_;
-  path.truncate(url.query_.find_first_of("?#"));
-  Slice parameters_hash = Slice(url.query_).substr(path.size());
-  Slice parameters = parameters_hash;
-  parameters.truncate(parameters.find('#'));
-  Slice hash = parameters_hash.substr(parameters.size());
-
-  string added_parameter;
-  if (parameters.empty()) {
-    added_parameter = '?';
-  } else if (parameters.size() == 1) {
-    CHECK(parameters == "?");
-  } else {
-    added_parameter = '&';
-  }
-  added_parameter += "autologin_token=";
-  added_parameter += autologin_token_;
-
-  url.query_ = PSTRING() << path << parameters << added_parameter << hash;
-
-  promise.set_value(td_api::make_object<td_api::loginUrlInfoOpen>(url.get_url(), skip_confirmation));
-}
-
-void LinkManager::get_login_url_info(MessageFullId message_full_id, int64 button_id,
-                                     Promise<td_api::object_ptr<td_api::LoginUrlInfo>> &&promise) {
-  TRY_RESULT_PROMISE(promise, url, td_->messages_manager_->get_login_button_url(message_full_id, button_id));
-  td_->create_handler<RequestUrlAuthQuery>(std::move(promise))
-      ->send(std::move(url), message_full_id, narrow_cast<int32>(button_id));
-}
-
-void LinkManager::get_login_url(MessageFullId message_full_id, int64 button_id, bool allow_write_access,
-                                Promise<td_api::object_ptr<td_api::httpUrl>> &&promise) {
-  TRY_RESULT_PROMISE(promise, url, td_->messages_manager_->get_login_button_url(message_full_id, button_id));
-  td_->create_handler<AcceptUrlAuthQuery>(std::move(promise))
-      ->send(std::move(url), message_full_id, narrow_cast<int32>(button_id), allow_write_access);
-}
-
-void LinkManager::get_link_login_url(const string &url, bool allow_write_access,
-                                     Promise<td_api::object_ptr<td_api::httpUrl>> &&promise) {
-  td_->create_handler<AcceptUrlAuthQuery>(std::move(promise))->send(url, MessageFullId(), 0, allow_write_access);
-}
-
-Result<string> LinkManager::get_background_url(const string &name,
-                                               td_api::object_ptr<td_api::BackgroundType> background_type) {
-  if (background_type == nullptr) {
-    return Status::Error(400, "Type must be non-empty");
-  }
-  if (background_type->get_id() == td_api::backgroundTypeChatTheme::ID) {
-    return Status::Error(400, "Background has no link");
-  }
-  TRY_RESULT(type, BackgroundType::get_background_type(background_type.get(), 0));
-  auto url = PSTRING() << get_t_me_url() << "bg/";
-  auto link = type.get_link();
-  if (type.has_file()) {
-    url += name;
-    if (!link.empty()) {
-      url += '?';
-      url += link;
-    }
-  } else {
-    url += link;
-  }
-  return url;
-}
-
-td_api::object_ptr<td_api::BackgroundType> LinkManager::get_background_type_object(const string &link,
-                                                                                   bool is_pattern) {
-  auto parsed_link = parse_internal_link(link);
-  if (parsed_link == nullptr) {
-    return nullptr;
-  }
-  auto parsed_object = parsed_link->get_internal_link_type_object();
-  if (parsed_object->get_id() != td_api::internalLinkTypeBackground::ID) {
-    return nullptr;
-  }
-  auto background_name =
-      std::move(static_cast<td_api::internalLinkTypeBackground *>(parsed_object.get())->background_name_);
-  if (!BackgroundType::is_background_name_local(background_name)) {
-    BackgroundType type(false, is_pattern, nullptr);
-    type.apply_parameters_from_link(background_name);
-    return type.get_background_type_object();
-  }
-  auto r_background_type = BackgroundType::get_local_background_type(background_name);
-  if (r_background_type.is_error()) {
-    return nullptr;
-  }
-  return r_background_type.ok().get_background_type_object();
-}
-
-string LinkManager::get_dialog_filter_invite_link_slug(Slice invite_link) {
-  auto link_info = get_link_info(invite_link);
-  if (link_info.type_ != LinkType::Tg && link_info.type_ != LinkType::TMe) {
-    return string();
-  }
-  const auto url_query = parse_url_query(link_info.query_);
-  auto slug = get_url_query_slug(link_info.type_ == LinkType::Tg, url_query);
-  if (!is_base64url_characters(slug)) {
-    return string();
-  }
-  return slug;
-}
-
-string LinkManager::get_dialog_filter_invite_link(Slice slug, bool is_internal) {
-  if (!is_base64url_characters(slug)) {
-    return string();
-  }
-  if (is_internal) {
-    return PSTRING() << "tg:addlist?slug=" << slug;
-  } else {
-    return PSTRING() << get_t_me_url() << "addlist/" << slug;
-  }
-}
-
-string LinkManager::get_dialog_invite_link_hash(Slice invite_link) {
-  auto link_info = get_link_info(invite_link);
-  if (link_info.type_ != LinkType::Tg && link_info.type_ != LinkType::TMe) {
-    return string();
-  }
-  const auto url_query = parse_url_query(link_info.query_);
-  auto invite_hash = get_url_query_hash(link_info.type_ == LinkType::Tg, url_query);
-  if (is_valid_phone_number(invite_hash)) {
-    return string();
-  }
-  if (!is_base64url_characters(invite_hash)) {
-    return string();
-  }
-  return invite_hash;
-}
-
-string LinkManager::get_dialog_invite_link(Slice invite_hash, bool is_internal) {
-  if (!is_base64url_characters(invite_hash)) {
-    return string();
-  }
-  if (is_internal) {
-    return PSTRING() << "tg:join?invite=" << invite_hash;
-  } else {
-    return PSTRING() << get_t_me_url() << '+' << invite_hash;
-  }
-}
-
-string LinkManager::get_instant_view_link_url(Slice link) {
-  auto link_info = get_link_info(link);
-  if (link_info.type_ != LinkType::TMe) {
-    return string();
-  }
-  const auto url_query = parse_url_query(link_info.query_);
-  const auto &path = url_query.path_;
-  if (path.size() == 1 && path[0] == "iv") {
-    return url_query.get_arg("url").str();
-  }
-  return string();
-}
-
-string LinkManager::get_instant_view_link_rhash(Slice link) {
-  auto link_info = get_link_info(link);
-  if (link_info.type_ != LinkType::TMe) {
-    return string();
-  }
-  const auto url_query = parse_url_query(link_info.query_);
-  const auto &path = url_query.path_;
-  if (path.size() == 1 && path[0] == "iv" && !url_query.get_arg("url").empty()) {
-    return url_query.get_arg("rhash").str();
-  }
-  return string();
-}
-
-string LinkManager::get_instant_view_link(Slice url, Slice rhash) {
-  return PSTRING() << get_t_me_url() << "iv?url=" << url_encode(url) << "&rhash=" << url_encode(rhash);
-}
-
-string LinkManager::get_public_dialog_link(Slice username, Slice draft_text, bool open_profile, bool is_internal) {
-  if (is_internal) {
-    return PSTRING() << "tg://resolve?domain=" << url_encode(username) << (draft_text.empty() ? "" : "&text=")
-                     << url_encode(draft_text) << (open_profile ? "&profile" : "");
-  } else {
-    return PSTRING() << get_t_me_url() << url_encode(username) << (draft_text.empty() ? "" : "?text=")
-                     << url_encode(draft_text) << (open_profile ? (draft_text.empty() ? "?profile" : "&profile") : "");
-  }
-}
-
-Result<string> LinkManager::get_proxy_link(const Proxy &proxy, bool is_internal) {
-  string url = is_internal ? "tg://" : get_t_me_url();
-  bool is_socks = false;
-  switch (proxy.type()) {
-    case Proxy::Type::Socks5:
-      url += "socks";
-      is_socks = true;
-      break;
-    case Proxy::Type::HttpTcp:
-    case Proxy::Type::HttpCaching:
-      return Status::Error(400, "HTTP proxies have no public links");
-    case Proxy::Type::Mtproto:
-      url += "proxy";
-      break;
-    default:
-      UNREACHABLE();
-  }
-  url += "?server=";
-  url += url_encode(proxy.server());
-  url += "&port=";
-  url += to_string(proxy.port());
-  if (is_socks) {
-    if (!proxy.user().empty() || !proxy.password().empty()) {
-      url += "&user=";
-      url += url_encode(proxy.user());
-      url += "&pass=";
-      url += url_encode(proxy.password());
-    }
-  } else {
-    url += "&secret=";
-    url += proxy.secret().get_encoded_secret();
-  }
-  return std::move(url);
-}
-
-UserId LinkManager::get_link_user_id(Slice url) {
-  string lower_cased_url = to_lower(url);
-  url = lower_cased_url;
-
-  Slice link_scheme("tg:");
-  if (!begins_with(url, link_scheme)) {
-    return UserId();
-  }
-  url.remove_prefix(link_scheme.size());
-  if (begins_with(url, "//")) {
-    url.remove_prefix(2);
-  }
-
-  Slice host("user");
-  if (!begins_with(url, host) || (url.size() > host.size() && Slice("/?#").find(url[host.size()]) == Slice::npos)) {
-    return UserId();
-  }
-  url.remove_prefix(host.size());
-  if (begins_with(url, "/")) {
-    url.remove_prefix(1);
-  }
-  if (!begins_with(url, "?")) {
-    return UserId();
-  }
-  url.remove_prefix(1);
-  url.truncate(url.find('#'));
-
-  for (auto parameter : full_split(url, '&')) {
-    Slice key;
-    Slice value;
-    std::tie(key, value) = split(parameter, '=');
-    if (key == Slice("id")) {
-      auto r_user_id = to_integer_safe<int64>(value);
-      if (r_user_id.is_error()) {
-        return UserId();
-      }
-      return UserId(r_user_id.ok());
-    }
-  }
-  return UserId();
-}
-
-string LinkManager::get_t_me_url() {
-  if (Scheduler::context() != nullptr) {
-    return G()->get_option_string("t_me_url", "https://t.me/");
-  } else {
-    return "https://t.me/";
-  }
-}
-
-Result<CustomEmojiId> LinkManager::get_link_custom_emoji_id(Slice url) {
-  string lower_cased_url = to_lower(url);
-  url = lower_cased_url;
-
-  Slice link_scheme("tg:");
-  if (!begins_with(url, link_scheme)) {
-    return Status::Error(400, "Custom emoji URL must have scheme tg");
-  }
-  url.remove_prefix(link_scheme.size());
-  if (begins_with(url, "//")) {
-    url.remove_prefix(2);
-  }
-
-  Slice host("emoji");
-  if (!begins_with(url, host) || (url.size() > host.size() && Slice("/?#").find(url[host.size()]) == Slice::npos)) {
-    return Status::Error(400, PSLICE() << "Custom emoji URL must have host \"" << host << '"');
-  }
-  url.remove_prefix(host.size());
-  if (begins_with(url, "/")) {
-    url.remove_prefix(1);
-  }
-  if (!begins_with(url, "?")) {
-    return Status::Error(400, "Custom emoji URL must have an emoji identifier");
-  }
-  url.remove_prefix(1);
-  url.truncate(url.find('#'));
-
-  for (auto parameter : full_split(url, '&')) {
-    Slice key;
-    Slice value;
-    std::tie(key, value) = split(parameter, '=');
-    if (key == Slice("id")) {
-      auto r_document_id = to_integer_safe<int64>(value);
-      if (r_document_id.is_error() || r_document_id.ok() == 0) {
-        return Status::Error(400, "Invalid custom emoji identifier specified");
-      }
-      return CustomEmojiId(r_document_id.ok());
-    }
-  }
-  return Status::Error(400, "Custom emoji URL must have an emoji identifier");
-}
-
-Result<DialogBoostLinkInfo> LinkManager::get_dialog_boost_link_info(Slice url) {
-  if (url.empty()) {
-    return Status::Error("URL must be non-empty");
-  }
-  auto link_info = get_link_info(url);
-  if (link_info.type_ != LinkType::Tg && link_info.type_ != LinkType::TMe) {
-    return Status::Error("Invalid chat boost link URL");
-  }
-  url = link_info.query_;
-
-  Slice username;
-  Slice channel_id_slice;
-  if (link_info.type_ == LinkType::Tg) {
-    // boost?domain=username
-    // boost?channel=123456789
-
-    if (!begins_with(url, "boost")) {
-      return Status::Error("Wrong chat boost link URL");
-    }
-    url = url.substr(5);
-
-    if (begins_with(url, "/")) {
-      url = url.substr(1);
-    }
-    if (!begins_with(url, "?")) {
-      return Status::Error("Wrong chat boost link URL");
-    }
-    url = url.substr(1);
-
-    auto args = full_split(url, '&');
-    for (auto arg : args) {
-      auto key_value = split(arg, '=');
-      if (key_value.first == "domain") {
-        username = key_value.second;
-      } else if (key_value.first == "channel") {
-        channel_id_slice = key_value.second;
-      }
-    }
-  } else {
-    // /username?boost
-    // /c/123456789?boost
-
-    CHECK(!url.empty() && url[0] == '/');
-    url.remove_prefix(1);
-
-    size_t username_end_pos = 0;
-    while (username_end_pos < url.size() && url[username_end_pos] != '/' && url[username_end_pos] != '?' &&
-           url[username_end_pos] != '#') {
-      username_end_pos++;
-    }
-    username = url.substr(0, username_end_pos);
-    url = url.substr(username_end_pos);
-    if (!url.empty() && url[0] == '/') {
-      url = url.substr(1);
-    }
-    if (username == "c") {
-      username = Slice();
-      size_t channel_id_end_pos = 0;
-      while (channel_id_end_pos < url.size() && url[channel_id_end_pos] != '/' && url[channel_id_end_pos] != '?' &&
-             url[channel_id_end_pos] != '#') {
-        channel_id_end_pos++;
-      }
-      channel_id_slice = url.substr(0, channel_id_end_pos);
-      url = url.substr(channel_id_end_pos);
-    }
-
-    bool is_boost = false;
-    auto query_pos = url.find('?');
-    if (query_pos != Slice::npos) {
-      auto args = full_split(url.substr(query_pos + 1), '&');
-      for (auto arg : args) {
-        auto key_value = split(arg, '=');
-        if (key_value.first == "boost") {
-          is_boost = true;
-        }
-      }
-    }
-
-    if (!is_boost) {
-      return Status::Error("Wrong chat boost link URL");
-    }
-  }
-
-  ChannelId channel_id;
-  if (username.empty()) {
-    auto r_channel_id = to_integer_safe<int64>(channel_id_slice);
-    if (r_channel_id.is_error() || !ChannelId(r_channel_id.ok()).is_valid()) {
-      return Status::Error("Wrong channel ID");
-    }
-    channel_id = ChannelId(r_channel_id.ok());
-  }
-
-  DialogBoostLinkInfo info;
-  info.username = username.str();
-  info.channel_id = channel_id;
-  LOG(INFO) << "Have link to boost chat @" << info.username << '/' << channel_id.get();
-  return std::move(info);
-}
-
-Result<MessageLinkInfo> LinkManager::get_message_link_info(Slice url) {
-  if (url.empty()) {
-    return Status::Error("URL must be non-empty");
-  }
-  auto link_info = get_link_info(url);
-  if (link_info.type_ != LinkType::Tg && link_info.type_ != LinkType::TMe) {
-    return Status::Error("Invalid message link URL");
-  }
-  url = link_info.query_;
-
-  Slice username;
-  Slice channel_id_slice;
-  Slice message_id_slice;
-  Slice comment_message_id_slice = "0";
-  Slice top_thread_message_id_slice;
-  Slice media_timestamp_slice;
-  bool is_single = false;
-  bool for_comment = false;
-  if (link_info.type_ == LinkType::Tg) {
-    // resolve?domain=username&post=12345&single&t=123&comment=12&thread=21
-    // privatepost?channel=123456789&post=12345&single&t=123&comment=12&thread=21
-
-    bool is_resolve = false;
-    if (begins_with(url, "resolve")) {
-      url = url.substr(7);
-      is_resolve = true;
-    } else if (begins_with(url, "privatepost")) {
-      url = url.substr(11);
-    } else {
-      return Status::Error("Wrong message link URL");
-    }
-
-    if (begins_with(url, "/")) {
-      url = url.substr(1);
-    }
-    if (!begins_with(url, "?")) {
-      return Status::Error("Wrong message link URL");
-    }
-    url = url.substr(1);
-
-    auto args = full_split(url, '&');
-    for (auto arg : args) {
-      auto key_value = split(arg, '=');
-      if (is_resolve) {
-        if (key_value.first == "domain") {
-          username = key_value.second;
-        }
-      } else {
-        if (key_value.first == "channel") {
-          channel_id_slice = key_value.second;
-        }
-      }
-      if (key_value.first == "post") {
-        message_id_slice = key_value.second;
-      }
-      if (key_value.first == "t") {
-        media_timestamp_slice = key_value.second;
-      }
-      if (key_value.first == "single") {
-        is_single = true;
-      }
-      if (key_value.first == "comment") {
-        comment_message_id_slice = key_value.second;
-      }
-      if (key_value.first == "thread") {
-        for_comment = true;
-        top_thread_message_id_slice = key_value.second;
-      }
-    }
-  } else {
-    // /c/123456789/12345
-    // /c/123456789/1234/12345
-    // /username/12345?single
-
-    CHECK(!url.empty() && url[0] == '/');
-    url.remove_prefix(1);
-
-    auto username_end_pos = url.find('/');
-    if (username_end_pos == Slice::npos) {
-      return Status::Error("Wrong message link URL");
-    }
-    username = url.substr(0, username_end_pos);
-    url = url.substr(username_end_pos + 1);
-    if (username == "c") {
-      username = Slice();
-      auto channel_id_end_pos = url.find('/');
-      if (channel_id_end_pos == Slice::npos) {
-        return Status::Error("Wrong message link URL");
-      }
-      channel_id_slice = url.substr(0, channel_id_end_pos);
-      url = url.substr(channel_id_end_pos + 1);
-    }
-
-    auto query_pos = url.find('?');
-    message_id_slice = url.substr(0, query_pos);
-    if (query_pos != Slice::npos) {
-      auto args = full_split(url.substr(query_pos + 1), '&');
-      for (auto arg : args) {
-        auto key_value = split(arg, '=');
-        if (key_value.first == "t") {
-          media_timestamp_slice = key_value.second;
-        }
-        if (key_value.first == "single") {
-          is_single = true;
-        }
-        if (key_value.first == "comment") {
-          comment_message_id_slice = key_value.second;
-        }
-        if (key_value.first == "thread") {
-          for_comment = true;
-          top_thread_message_id_slice = key_value.second;
-        }
-      }
-    }
-    auto slash_pos = message_id_slice.find('/');
-    if (slash_pos != Slice::npos) {
-      top_thread_message_id_slice = message_id_slice.substr(0, slash_pos);
-      message_id_slice.remove_prefix(slash_pos + 1);
-    }
-  }
-
-  ChannelId channel_id;
-  if (username.empty()) {
-    auto r_channel_id = to_integer_safe<int64>(channel_id_slice);
-    if (r_channel_id.is_error() || !ChannelId(r_channel_id.ok()).is_valid()) {
-      return Status::Error("Wrong channel ID");
-    }
-    channel_id = ChannelId(r_channel_id.ok());
-  }
-
-  auto r_message_id = to_integer_safe<int32>(message_id_slice);
-  if (r_message_id.is_error() || !ServerMessageId(r_message_id.ok()).is_valid()) {
-    return Status::Error("Wrong message ID");
-  }
-
-  int32 top_thread_message_id = 0;
-  if (!top_thread_message_id_slice.empty()) {
-    auto r_top_thread_message_id = to_integer_safe<int32>(top_thread_message_id_slice);
-    if (r_top_thread_message_id.is_error()) {
-      return Status::Error("Wrong message thread ID");
-    }
-    top_thread_message_id = r_top_thread_message_id.ok();
-    if (!ServerMessageId(top_thread_message_id).is_valid()) {
-      return Status::Error("Invalid message thread ID");
-    }
-  }
-
-  auto r_comment_message_id = to_integer_safe<int32>(comment_message_id_slice);
-  if (r_comment_message_id.is_error() ||
-      !(r_comment_message_id.ok() == 0 || ServerMessageId(r_comment_message_id.ok()).is_valid())) {
-    return Status::Error("Wrong comment message ID");
-  }
-
-  bool is_media_timestamp_invalid = false;
-  int32 media_timestamp = 0;
-  const int32 MAX_MEDIA_TIMESTAMP = 10000000;
-  if (!media_timestamp_slice.empty()) {
-    int32 current_value = 0;
-    for (size_t i = 0; i <= media_timestamp_slice.size(); i++) {
-      auto c = i < media_timestamp_slice.size() ? media_timestamp_slice[i] : 's';
-      if ('0' <= c && c <= '9') {
-        current_value = current_value * 10 + c - '0';
-        if (current_value > MAX_MEDIA_TIMESTAMP) {
-          is_media_timestamp_invalid = true;
-          break;
-        }
-      } else {
-        auto mul = 0;
-        switch (to_lower(c)) {
-          case 'h':
-            mul = 3600;
-            break;
-          case 'm':
-            mul = 60;
-            break;
-          case 's':
-            mul = 1;
-            break;
-        }
-        if (mul == 0 || current_value > MAX_MEDIA_TIMESTAMP / mul ||
-            media_timestamp + current_value * mul > MAX_MEDIA_TIMESTAMP) {
-          is_media_timestamp_invalid = true;
-          break;
-        }
-        media_timestamp += current_value * mul;
-        current_value = 0;
-      }
-    }
-  }
-
-  MessageLinkInfo info;
-  info.username = username.str();
-  info.channel_id = channel_id;
-  info.message_id = MessageId(ServerMessageId(r_message_id.ok()));
-  info.comment_message_id = MessageId(ServerMessageId(r_comment_message_id.ok()));
-  info.top_thread_message_id = MessageId(ServerMessageId(top_thread_message_id));
-  info.media_timestamp = is_media_timestamp_invalid ? 0 : media_timestamp;
-  info.is_single = is_single;
-  info.for_comment = for_comment;
-  LOG(INFO) << "Have link to " << info.message_id << " in chat @" << info.username << '/' << channel_id.get();
-  return std::move(info);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/LinkManager.h b/third-party/td/td/td/telegram/LinkManager.h
deleted file mode 100644
index f9222142c9..0000000000
--- a/third-party/td/td/td/telegram/LinkManager.h
+++ /dev/null
@@ -1,204 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogBoostLinkInfo.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageLinkInfo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class Proxy;
-class Td;
-
-class LinkManager final : public Actor {
- public:
-  LinkManager(Td *td, ActorShared<> parent);
-
-  LinkManager(const LinkManager &) = delete;
-  LinkManager &operator=(const LinkManager &) = delete;
-  LinkManager(LinkManager &&) = delete;
-  LinkManager &operator=(LinkManager &&) = delete;
-  ~LinkManager() final;
-
-  class InternalLink {
-   public:
-    InternalLink() = default;
-    InternalLink(const InternalLink &) = delete;
-    InternalLink &operator=(const InternalLink &) = delete;
-    InternalLink(InternalLink &&) = delete;
-    InternalLink &operator=(InternalLink &&) = delete;
-    virtual ~InternalLink() = default;
-
-    virtual td_api::object_ptr<td_api::InternalLinkType> get_internal_link_type_object() const = 0;
-  };
-
-  // checks whether the link is a valid tg, ton or HTTP(S) URL and returns it in a canonical form
-  static Result<string> check_link(CSlice link, bool http_only = false, bool https_only = false);
-
-  // same as check_link, but returns an empty string instead of an error
-  static string get_checked_link(Slice link, bool http_only = false, bool https_only = false);
-
-  // returns whether a link is an internal link, supported or not
-  static bool is_internal_link(Slice link);
-
-  // checks whether the link is a supported tg or t.me link and parses it
-  static unique_ptr<InternalLink> parse_internal_link(Slice link, bool is_trusted = false);
-
-  static Result<string> get_internal_link(const td_api::object_ptr<td_api::InternalLinkType> &type, bool is_internal);
-
-  void update_autologin_token(string autologin_token);
-
-  void update_autologin_domains(vector<string> autologin_domains, vector<string> url_auth_domains,
-                                vector<string> whitelisted_domains);
-
-  void get_recent_me_urls(const string &referrer, Promise<td_api::object_ptr<td_api::tMeUrls>> &&promise);
-
-  void get_deep_link_info(Slice link, Promise<td_api::object_ptr<td_api::deepLinkInfo>> &&promise);
-
-  void get_external_link_info(string &&link, Promise<td_api::object_ptr<td_api::LoginUrlInfo>> &&promise);
-
-  void get_login_url_info(MessageFullId message_full_id, int64 button_id,
-                          Promise<td_api::object_ptr<td_api::LoginUrlInfo>> &&promise);
-
-  void get_login_url(MessageFullId message_full_id, int64 button_id, bool allow_write_access,
-                     Promise<td_api::object_ptr<td_api::httpUrl>> &&promise);
-
-  void get_link_login_url(const string &url, bool allow_write_access,
-                          Promise<td_api::object_ptr<td_api::httpUrl>> &&promise);
-
-  static Result<string> get_background_url(const string &name,
-                                           td_api::object_ptr<td_api::BackgroundType> background_type);
-
-  static td_api::object_ptr<td_api::BackgroundType> get_background_type_object(const string &link, bool is_pattern);
-
-  static string get_dialog_filter_invite_link_slug(Slice invite_link);
-
-  static string get_dialog_filter_invite_link(Slice slug, bool is_internal);
-
-  static string get_dialog_invite_link_hash(Slice invite_link);
-
-  static string get_dialog_invite_link(Slice invite_hash, bool is_internal);
-
-  static string get_instant_view_link_url(Slice link);
-
-  static string get_instant_view_link_rhash(Slice link);
-
-  static string get_instant_view_link(Slice url, Slice rhash);
-
-  static string get_public_dialog_link(Slice username, Slice draft_text, bool open_profile, bool is_internal);
-
-  static Result<string> get_proxy_link(const Proxy &proxy, bool is_internal);
-
-  static UserId get_link_user_id(Slice url);
-
-  static string get_t_me_url();
-
-  static Result<CustomEmojiId> get_link_custom_emoji_id(Slice url);
-
-  static Result<DialogBoostLinkInfo> get_dialog_boost_link_info(Slice url);
-
-  static Result<MessageLinkInfo> get_message_link_info(Slice url);
-
- private:
-  void start_up() final;
-
-  void tear_down() final;
-
-  class InternalLinkActiveSessions;
-  class InternalLinkAttachMenuBot;
-  class InternalLinkAuthenticationCode;
-  class InternalLinkBackground;
-  class InternalLinkBotAddToChannel;
-  class InternalLinkBotStart;
-  class InternalLinkBotStartInGroup;
-  class InternalLinkBusinessChat;
-  class InternalLinkBuyStars;
-  class InternalLinkChangePhoneNumber;
-  class InternalLinkConfirmPhone;
-  class InternalLinkDefaultMessageAutoDeleteTimerSettings;
-  class InternalLinkDialogBoost;
-  class InternalLinkDialogFolderInvite;
-  class InternalLinkDialogFolderSettings;
-  class InternalLinkDialogInvite;
-  class InternalLinkDialogReferralProgram;
-  class InternalLinkEditProfileSettings;
-  class InternalLinkGame;
-  class InternalLinkInstantView;
-  class InternalLinkInvoice;
-  class InternalLinkLanguage;
-  class InternalLinkLanguageSettings;
-  class InternalLinkMainWebApp;
-  class InternalLinkMessage;
-  class InternalLinkMessageDraft;
-  class InternalLinkPassportDataRequest;
-  class InternalLinkPremiumFeatures;
-  class InternalLinkPremiumGift;
-  class InternalLinkPremiumGiftCode;
-  class InternalLinkPrivacyAndSecuritySettings;
-  class InternalLinkProxy;
-  class InternalLinkPublicDialog;
-  class InternalLinkQrCodeAuthentication;
-  class InternalLinkRestorePurchases;
-  class InternalLinkSettings;
-  class InternalLinkStickerSet;
-  class InternalLinkStory;
-  class InternalLinkTheme;
-  class InternalLinkThemeSettings;
-  class InternalLinkUnknownDeepLink;
-  class InternalLinkUnsupportedProxy;
-  class InternalLinkUpgradedGift;
-  class InternalLinkUserPhoneNumber;
-  class InternalLinkUserToken;
-  class InternalLinkVoiceChat;
-  class InternalLinkWebApp;
-
-  enum class LinkType : int32 { External, TMe, Tg, Telegraph };
-
-  struct LinkInfo {
-    LinkType type_ = LinkType::External;
-    string query_;
-  };
-  // returns information about the link
-  static LinkInfo get_link_info(Slice link);
-
-  static unique_ptr<InternalLink> parse_tg_link_query(Slice query, bool is_trusted);
-
-  static unique_ptr<InternalLink> parse_t_me_link_query(Slice query, bool is_trusted);
-
-  static unique_ptr<InternalLink> get_internal_link_passport(Slice query, const vector<std::pair<string, string>> &args,
-                                                             bool allow_unknown);
-
-  static unique_ptr<InternalLink> get_internal_link_message_draft(Slice url, Slice text);
-
-  static Result<string> get_internal_link_impl(const td_api::InternalLinkType *type_ptr, bool is_internal);
-
-  static Result<string> check_link_impl(Slice link, bool http_only, bool https_only);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  string autologin_token_;
-  vector<string> autologin_domains_;
-  double autologin_update_time_ = 0.0;
-  vector<string> url_auth_domains_;
-  vector<string> whitelisted_domains_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Location.cpp b/third-party/td/td/td/telegram/Location.cpp
deleted file mode 100644
index bef1b30c97..0000000000
--- a/third-party/td/td/td/telegram/Location.cpp
+++ /dev/null
@@ -1,183 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Location.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Td.h"
-
-#include <cmath>
-#include <limits>
-
-namespace td {
-
-double Location::fix_accuracy(double accuracy) {
-  if (!std::isfinite(accuracy) || accuracy <= 0.0) {
-    return 0.0;
-  }
-  if (accuracy >= 1500.0) {
-    return 1500.0;
-  }
-  return accuracy;
-}
-
-void Location::init(Td *td, double latitude, double longitude, double horizontal_accuracy, int64 access_hash) {
-  if (std::isfinite(latitude) && std::isfinite(longitude) && std::abs(latitude) <= 90 && std::abs(longitude) <= 180) {
-    is_empty_ = false;
-    latitude_ = latitude;
-    longitude_ = longitude;
-    horizontal_accuracy_ = fix_accuracy(horizontal_accuracy);
-    access_hash_ = access_hash;
-    if (td != nullptr && !td->auth_manager_->is_bot()) {
-      G()->add_location_access_hash(latitude_, longitude_, access_hash_);
-    }
-  }
-}
-
-Location::Location(Td *td, double latitude, double longitude, double horizontal_accuracy, int64 access_hash) {
-  init(td, latitude, longitude, horizontal_accuracy, access_hash);
-}
-
-Location::Location(const tl_object_ptr<secret_api::decryptedMessageMediaGeoPoint> &geo_point)
-    : Location(nullptr, geo_point->lat_, geo_point->long_, 0.0, 0) {
-}
-
-Location::Location(Td *td, const tl_object_ptr<telegram_api::GeoPoint> &geo_point_ptr) {
-  if (geo_point_ptr == nullptr) {
-    return;
-  }
-  switch (geo_point_ptr->get_id()) {
-    case telegram_api::geoPointEmpty::ID:
-      break;
-    case telegram_api::geoPoint::ID: {
-      auto geo_point = static_cast<const telegram_api::geoPoint *>(geo_point_ptr.get());
-      init(td, geo_point->lat_, geo_point->long_, geo_point->accuracy_radius_, geo_point->access_hash_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-Location::Location(const tl_object_ptr<td_api::location> &location) {
-  if (location == nullptr) {
-    return;
-  }
-
-  init(nullptr, location->latitude_, location->longitude_, location->horizontal_accuracy_, 0);
-}
-
-bool Location::empty() const {
-  return is_empty_;
-}
-
-bool Location::is_valid_map_point() const {
-  const double MAX_VALID_MAP_LATITUDE = 85.05112877;
-  return !empty() && std::abs(latitude_) <= MAX_VALID_MAP_LATITUDE;
-}
-
-tl_object_ptr<td_api::location> Location::get_location_object() const {
-  if (empty()) {
-    return nullptr;
-  }
-  return make_tl_object<td_api::location>(latitude_, longitude_, horizontal_accuracy_);
-}
-
-tl_object_ptr<telegram_api::InputGeoPoint> Location::get_input_geo_point() const {
-  if (empty()) {
-    return make_tl_object<telegram_api::inputGeoPointEmpty>();
-  }
-
-  int32 flags = 0;
-  if (horizontal_accuracy_ > 0) {
-    flags |= telegram_api::inputGeoPoint::ACCURACY_RADIUS_MASK;
-  }
-
-  return make_tl_object<telegram_api::inputGeoPoint>(flags, latitude_, longitude_,
-                                                     static_cast<int32>(std::ceil(horizontal_accuracy_)));
-}
-
-telegram_api::object_ptr<telegram_api::GeoPoint> Location::get_fake_geo_point() const {
-  if (empty()) {
-    return make_tl_object<telegram_api::geoPointEmpty>();
-  }
-
-  int32 flags = 0;
-  if (horizontal_accuracy_ > 0) {
-    flags |= telegram_api::geoPoint::ACCURACY_RADIUS_MASK;
-  }
-  return telegram_api::make_object<telegram_api::geoPoint>(flags, longitude_, latitude_, 0,
-                                                           static_cast<int32>(std::ceil(horizontal_accuracy_)));
-}
-
-tl_object_ptr<telegram_api::inputMediaGeoPoint> Location::get_input_media_geo_point() const {
-  return make_tl_object<telegram_api::inputMediaGeoPoint>(get_input_geo_point());
-}
-
-SecretInputMedia Location::get_secret_input_media_geo_point() const {
-  return SecretInputMedia{nullptr, make_tl_object<secret_api::decryptedMessageMediaGeoPoint>(latitude_, longitude_)};
-}
-
-bool operator==(const Location &lhs, const Location &rhs) {
-  if (lhs.is_empty_) {
-    return rhs.is_empty_;
-  }
-  return !rhs.is_empty_ && std::abs(lhs.latitude_ - rhs.latitude_) < 1e-6 &&
-         std::abs(lhs.longitude_ - rhs.longitude_) < 1e-6 &&
-         std::abs(lhs.horizontal_accuracy_ - rhs.horizontal_accuracy_) < 1e-6;
-}
-
-bool operator!=(const Location &lhs, const Location &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Location &location) {
-  if (location.empty()) {
-    return string_builder << "Location[empty]";
-  }
-  return string_builder << "Location[latitude = " << location.latitude_ << ", longitude = " << location.longitude_
-                        << ", accuracy = " << location.horizontal_accuracy_ << "]";
-}
-
-Result<InputMessageLocation> process_input_message_location(
-    tl_object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  CHECK(input_message_content != nullptr);
-  CHECK(input_message_content->get_id() == td_api::inputMessageLocation::ID);
-  auto input_location = static_cast<const td_api::inputMessageLocation *>(input_message_content.get());
-
-  Location location(input_location->location_);
-  if (location.empty()) {
-    return Status::Error(400, "Wrong location specified");
-  }
-
-  constexpr int32 MIN_LIVE_LOCATION_PERIOD = 60;     // seconds, server side limit
-  constexpr int32 MAX_LIVE_LOCATION_PERIOD = 86400;  // seconds, server side limit
-
-  auto period = input_location->live_period_;
-  if (period != 0 && period != std::numeric_limits<int32>::max() &&
-      (period < MIN_LIVE_LOCATION_PERIOD || period > MAX_LIVE_LOCATION_PERIOD)) {
-    return Status::Error(400, "Wrong live location period specified");
-  }
-
-  constexpr int32 MIN_LIVE_LOCATION_HEADING = 1;    // degrees, server side limit
-  constexpr int32 MAX_LIVE_LOCATION_HEADING = 360;  // degrees, server side limit
-
-  auto heading = input_location->heading_;
-  if (heading != 0 && (heading < MIN_LIVE_LOCATION_HEADING || heading > MAX_LIVE_LOCATION_HEADING)) {
-    return Status::Error(400, "Wrong live location heading specified");
-  }
-
-  constexpr int32 MAX_PROXIMITY_ALERT_RADIUS = 100000;  // meters, server side limit
-  auto proximity_alert_radius = input_location->proximity_alert_radius_;
-  if (proximity_alert_radius < 0 || proximity_alert_radius > MAX_PROXIMITY_ALERT_RADIUS) {
-    return Status::Error(400, "Wrong live location proximity alert radius specified");
-  }
-
-  return InputMessageLocation(std::move(location), period, heading, proximity_alert_radius);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Location.h b/third-party/td/td/td/telegram/Location.h
deleted file mode 100644
index 3445d8eda8..0000000000
--- a/third-party/td/td/td/telegram/Location.h
+++ /dev/null
@@ -1,144 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Global.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Td;
-
-class Location {
-  bool is_empty_ = true;
-  double latitude_ = 0.0;
-  double longitude_ = 0.0;
-  double horizontal_accuracy_ = 0.0;
-  mutable int64 access_hash_ = 0;
-
-  friend bool operator==(const Location &lhs, const Location &rhs);
-  friend bool operator!=(const Location &lhs, const Location &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const Location &location);
-
-  void init(Td *td, double latitude, double longitude, double horizontal_accuracy, int64 access_hash);
-
-  static double fix_accuracy(double accuracy);
-
- public:
-  Location() = default;
-
-  Location(Td *td, double latitude, double longitude, double horizontal_accuracy, int64 access_hash);
-
-  explicit Location(const tl_object_ptr<secret_api::decryptedMessageMediaGeoPoint> &geo_point);
-
-  Location(Td *td, const tl_object_ptr<telegram_api::GeoPoint> &geo_point_ptr);
-
-  explicit Location(const tl_object_ptr<td_api::location> &location);
-
-  bool empty() const;
-
-  bool is_valid_map_point() const;
-
-  tl_object_ptr<td_api::location> get_location_object() const;
-
-  tl_object_ptr<telegram_api::InputGeoPoint> get_input_geo_point() const;
-
-  telegram_api::object_ptr<telegram_api::GeoPoint> get_fake_geo_point() const;
-
-  tl_object_ptr<telegram_api::inputMediaGeoPoint> get_input_media_geo_point() const;
-
-  double get_latitude() const {
-    return latitude_;
-  }
-
-  double get_longitude() const {
-    return longitude_;
-  }
-
-  int64 get_access_hash() const {
-    return access_hash_;
-  }
-
-  void set_access_hash(int64 access_hash) const {
-    access_hash_ = access_hash;
-  }
-
-  SecretInputMedia get_secret_input_media_geo_point() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    bool has_access_hash = access_hash_ != 0;
-    bool has_horizontal_accuracy = horizontal_accuracy_ > 0.0;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_empty_);
-    STORE_FLAG(has_access_hash);
-    STORE_FLAG(has_horizontal_accuracy);
-    END_STORE_FLAGS();
-    store(latitude_, storer);
-    store(longitude_, storer);
-    if (has_access_hash) {
-      store(access_hash_, storer);
-    }
-    if (has_horizontal_accuracy) {
-      store(horizontal_accuracy_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    bool has_access_hash;
-    bool has_horizontal_accuracy;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_empty_);
-    PARSE_FLAG(has_access_hash);
-    PARSE_FLAG(has_horizontal_accuracy);
-    END_PARSE_FLAGS();
-    parse(latitude_, parser);
-    parse(longitude_, parser);
-    if (has_access_hash) {
-      parse(access_hash_, parser);
-      G()->add_location_access_hash(latitude_, longitude_, access_hash_);
-    }
-    if (has_horizontal_accuracy) {
-      parse(horizontal_accuracy_, parser);
-    }
-  }
-};
-
-bool operator==(const Location &lhs, const Location &rhs);
-bool operator!=(const Location &lhs, const Location &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Location &location);
-
-struct InputMessageLocation {
-  Location location;
-  int32 live_period;
-  int32 heading;
-  int32 proximity_alert_radius;
-
-  InputMessageLocation(Location &&location, int32 live_period, int32 heading, int32 proximity_alert_radius)
-      : location(std::move(location))
-      , live_period(live_period)
-      , heading(heading)
-      , proximity_alert_radius(proximity_alert_radius) {
-  }
-};
-Result<InputMessageLocation> process_input_message_location(
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content) TD_WARN_UNUSED_RESULT;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Log.cpp b/third-party/td/td/td/telegram/Log.cpp
deleted file mode 100644
index 6d1c56e2e5..0000000000
--- a/third-party/td/td/td/telegram/Log.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Log.h"
-
-#include "td/telegram/Client.h"
-#include "td/telegram/Logging.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-
-#include <mutex>
-
-namespace td {
-
-static std::mutex log_mutex;
-static string log_file_path;
-static int64 max_log_file_size = 10 << 20;
-static Log::FatalErrorCallbackPtr fatal_error_callback;
-
-static void fatal_error_callback_wrapper(int verbosity_level, const char *message) {
-  if (verbosity_level == 0) {
-    auto callback = fatal_error_callback;
-    if (callback != nullptr) {
-      callback(message);
-    }
-  }
-}
-
-bool Log::set_file_path(string file_path) {
-  std::lock_guard<std::mutex> lock(log_mutex);
-  if (file_path.empty()) {
-    log_file_path.clear();
-    return Logging::set_current_stream(td_api::make_object<td_api::logStreamDefault>()).is_ok();
-  }
-
-  if (Logging::set_current_stream(td_api::make_object<td_api::logStreamFile>(file_path, max_log_file_size, true))
-          .is_ok()) {
-    log_file_path = std::move(file_path);
-    return true;
-  }
-
-  return false;
-}
-
-void Log::set_max_file_size(int64 max_file_size) {
-  std::lock_guard<std::mutex> lock(log_mutex);
-  max_log_file_size = max(max_file_size, static_cast<int64>(1));
-  Logging::set_current_stream(td_api::make_object<td_api::logStreamFile>(log_file_path, max_log_file_size, true))
-      .ignore();
-}
-
-void Log::set_verbosity_level(int new_verbosity_level) {
-  std::lock_guard<std::mutex> lock(log_mutex);
-  Logging::set_verbosity_level(new_verbosity_level).ignore();
-}
-
-void Log::set_fatal_error_callback(FatalErrorCallbackPtr callback) {
-  std::lock_guard<std::mutex> lock(log_mutex);
-  if (callback == nullptr) {
-    ClientManager::set_log_message_callback(0, nullptr);
-    fatal_error_callback = nullptr;
-  } else {
-    fatal_error_callback = callback;
-    ClientManager::set_log_message_callback(0, fatal_error_callback_wrapper);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Log.h b/third-party/td/td/td/telegram/Log.h
deleted file mode 100644
index 92b9b39124..0000000000
--- a/third-party/td/td/td/telegram/Log.h
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-/**
- * \file
- * C++ interface for managing the internal logging of TDLib.
- * By default TDLib writes logs to stderr or an OS specific log and uses a verbosity level of 5.
- */
-
-#include <cstdint>
-#include <string>
-
-namespace td {
-
-/**
- * Interface for managing the internal logging of TDLib.
- * By default TDLib writes logs to stderr or an OS specific log and uses a verbosity level of 5.
- * These functions are deprecated since TDLib 1.4.0 in favor of the td::td_api::setLogVerbosityLevel,
- * td::td_api::setLogStream and other synchronous requests for managing the internal TDLib logging.
- */
-class Log {
- public:
-  /**
-   * Sets the path to the file to where the internal TDLib log will be written.
-   * By default TDLib writes logs to stderr or an OS specific log.
-   * Use this method to write the log to a file instead.
-   *
-   * \deprecated Use synchronous td::td_api::setLogStream request instead.
-   * \param[in]  file_path Path to a file where the internal TDLib log will be written. Use an empty path to
-   *                       switch back to the default logging behaviour.
-   * \return True on success, or false otherwise, i.e. if the file can't be opened for writing.
-   */
-  static bool set_file_path(std::string file_path);
-
-  /**
-   * Sets the maximum size of the file to where the internal TDLib log is written before the file will be auto-rotated.
-   * Unused if log is not written to a file. Defaults to 10 MB.
-   *
-   * \deprecated Use synchronous td::td_api::setLogStream request instead.
-   * \param[in]  max_file_size The maximum size of the file to where the internal TDLib log is written before the file
-   *                           will be auto-rotated. Should be positive.
-   */
-  static void set_max_file_size(std::int64_t max_file_size);
-
-  /**
-   * Sets the verbosity level of the internal logging of TDLib.
-   * By default the TDLib uses a verbosity level of 5 for logging.
-   *
-   * \deprecated Use synchronous td::td_api::setLogVerbosityLevel request instead.
-   * \param[in]  new_verbosity_level New value of the verbosity level for logging.
-   *                                 Value 0 corresponds to fatal errors,
-   *                                 value 1 corresponds to errors,
-   *                                 value 2 corresponds to warnings and debug warnings,
-   *                                 value 3 corresponds to informational,
-   *                                 value 4 corresponds to debug,
-   *                                 value 5 corresponds to verbose debug,
-   *                                 value greater than 5 and up to 1024 can be used to enable even more logging.
-   */
-  static void set_verbosity_level(int new_verbosity_level);
-
-  /**
-   * A type of callback function that will be called when a fatal error happens.
-   *
-   * \param error_message Null-terminated string with a description of a happened fatal error.
-   */
-  using FatalErrorCallbackPtr = void (*)(const char *error_message);
-
-  /**
-   * Sets the callback that will be called when a fatal error happens.
-   * None of the TDLib methods can be called from the callback.
-   * The TDLib will crash as soon as callback returns.
-   * By default the callback is not set.
-   *
-   * \deprecated Use ClientManager::set_log_message_callback instead.
-   * \param[in]  callback Callback that will be called when a fatal error happens.
-   *                      Pass nullptr to remove the callback.
-   */
-  static void set_fatal_error_callback(FatalErrorCallbackPtr callback);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/LogDotNet.cpp b/third-party/td/td/td/telegram/LogDotNet.cpp
deleted file mode 100644
index 5d8859b957..0000000000
--- a/third-party/td/td/td/telegram/LogDotNet.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma managed(push, off)
-#include "td/telegram/Log.h"
-#pragma managed(pop)
-
-#include "td/utils/port/CxCli.h"
-
-#pragma managed(push, off)
-#include <cstdint>
-#pragma managed(pop)
-
-namespace Telegram {
-namespace Td {
-
-using namespace CxCli;
-
-/// <summary>
-/// Class for managing internal TDLib logging.
-/// </summary>
-[DEPRECATED_ATTRIBUTE("Telegram.Td.Log class is deprecated, please use Telegram.Td.Api.*Log* requests instead.")]
-public ref class Log sealed {
-public:
-  /// <summary>
-  /// Changes TDLib log verbosity.
-  /// </summary>
-  /// <param name="verbosityLevel">New value of log verbosity level. Must be non-negative.
-  /// Value 0 means FATAL, value 1 means ERROR, value 2 means WARNING, value 3 means INFO, value 4 means DEBUG,
-  /// value greater than 4 can be used to enable even more logging.
-  /// Default value of the log verbosity level is 5.</param>
-  [DEPRECATED_ATTRIBUTE("SetVerbosityLevel is deprecated, please use Telegram.Td.Api.SetLogVerbosityLevel request instead.")]
-  static void SetVerbosityLevel(int verbosityLevel) {
-    ::td::Log::set_verbosity_level(verbosityLevel);
-  }
-
-  /// <summary>
-  /// Sets file path for writing TDLib internal log. By default TDLib writes logs to the System.err.
-  /// Use this method to write the log to a file instead.
-  /// </summary>
-  /// <param name="filePath">Path to a file for writing TDLib internal log. Use an empty path to switch back to logging
-  /// to the System.err.</param>
-  /// <returns>Returns whether opening the log file succeeded.</returns>
-  [DEPRECATED_ATTRIBUTE("SetFilePath is deprecated, please use Telegram.Td.Api.SetLogStream request instead.")]
-  static bool SetFilePath(String^ filePath) {
-    return ::td::Log::set_file_path(string_to_unmanaged(filePath));
-  }
-
-  /// <summary>
-  /// Changes the maximum size of TDLib log file.
-  /// </summary>
-  /// <param name="maxFileSize">The maximum size of the file to where the internal TDLib log is written
-  /// before the file will be auto-rotated. Must be positive. Defaults to 10 MB.</param>
-  [DEPRECATED_ATTRIBUTE("SetMaxFileSize is deprecated, please use Telegram.Td.Api.SetLogStream request instead.")]
-  static void SetMaxFileSize(std::int64_t maxFileSize) {
-    ::td::Log::set_max_file_size(maxFileSize);
-  }
-};
-
-}  // namespace Td
-}  // namespace Telegram
diff --git a/third-party/td/td/td/telegram/Logging.cpp b/third-party/td/td/td/telegram/Logging.cpp
deleted file mode 100644
index ae24d280c5..0000000000
--- a/third-party/td/td/td/telegram/Logging.cpp
+++ /dev/null
@@ -1,163 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Logging.h"
-
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileGcWorker.h"
-#include "td/telegram/files/FileLoaderUtils.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/net/ConnectionCreator.h"
-#include "td/telegram/net/DcAuthManager.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UpdatesManager.h"
-
-#include "td/mtproto/SessionConnection.h"
-#include "td/mtproto/Transport.h"
-
-#include "td/db/binlog/Binlog.h"
-#include "td/db/SqliteStatement.h"
-
-#include "td/net/GetHostByNameActor.h"
-#include "td/net/TransparentProxy.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/FileLog.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/NullLog.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/TsLog.h"
-
-#include <atomic>
-#include <map>
-#include <mutex>
-
-namespace td {
-
-static std::mutex logging_mutex;
-static FileLog file_log;
-static TsLog ts_log(&file_log);
-static NullLog null_log;
-static ExitGuard exit_guard;
-
-#define ADD_TAG(tag) \
-  { #tag, &VERBOSITY_NAME(tag) }
-static const std::map<Slice, int *> log_tags{
-    ADD_TAG(td_init),     ADD_TAG(update_file),      ADD_TAG(connections),   ADD_TAG(binlog),
-    ADD_TAG(proxy),       ADD_TAG(net_query),        ADD_TAG(td_requests),   ADD_TAG(dc),
-    ADD_TAG(file_loader), ADD_TAG(mtproto),          ADD_TAG(raw_mtproto),   ADD_TAG(fd),
-    ADD_TAG(actor),       ADD_TAG(sqlite),           ADD_TAG(notifications), ADD_TAG(get_difference),
-    ADD_TAG(file_gc),     ADD_TAG(config_recoverer), ADD_TAG(dns_resolver),  ADD_TAG(file_references)};
-#undef ADD_TAG
-
-Status Logging::set_current_stream(td_api::object_ptr<td_api::LogStream> stream) {
-  if (stream == nullptr) {
-    return Status::Error("Log stream must be non-empty");
-  }
-
-  std::lock_guard<std::mutex> lock(logging_mutex);
-  switch (stream->get_id()) {
-    case td_api::logStreamDefault::ID:
-      log_interface = default_log_interface;
-      return Status::OK();
-    case td_api::logStreamFile::ID: {
-      auto file_stream = td_api::move_object_as<td_api::logStreamFile>(stream);
-      auto max_log_file_size = file_stream->max_file_size_;
-      if (max_log_file_size <= 0) {
-        return Status::Error("Max log file size must be positive");
-      }
-      auto redirect_stderr = file_stream->redirect_stderr_;
-
-      TRY_STATUS(file_log.init(file_stream->path_, max_log_file_size, redirect_stderr));
-      std::atomic_thread_fence(std::memory_order_release);  // better than nothing
-      log_interface = &ts_log;
-      return Status::OK();
-    }
-    case td_api::logStreamEmpty::ID:
-      log_interface = &null_log;
-      return Status::OK();
-    default:
-      UNREACHABLE();
-      return Status::OK();
-  }
-}
-
-Result<td_api::object_ptr<td_api::LogStream>> Logging::get_current_stream() {
-  std::lock_guard<std::mutex> lock(logging_mutex);
-  if (log_interface == default_log_interface) {
-    return td_api::make_object<td_api::logStreamDefault>();
-  }
-  if (log_interface == &null_log) {
-    return td_api::make_object<td_api::logStreamEmpty>();
-  }
-  if (log_interface == &ts_log) {
-    return td_api::make_object<td_api::logStreamFile>(file_log.get_path().str(), file_log.get_rotate_threshold(),
-                                                      file_log.get_redirect_stderr());
-  }
-  return Status::Error("Log stream is unrecognized");
-}
-
-Status Logging::set_verbosity_level(int new_verbosity_level) {
-  std::lock_guard<std::mutex> lock(logging_mutex);
-  if (0 <= new_verbosity_level && new_verbosity_level <= VERBOSITY_NAME(NEVER)) {
-    SET_VERBOSITY_LEVEL(VERBOSITY_NAME(FATAL) + new_verbosity_level);
-    return Status::OK();
-  }
-
-  return Status::Error("Wrong new verbosity level specified");
-}
-
-int Logging::get_verbosity_level() {
-  std::lock_guard<std::mutex> lock(logging_mutex);
-  return GET_VERBOSITY_LEVEL();
-}
-
-vector<string> Logging::get_tags() {
-  return transform(log_tags, [](auto &tag) { return tag.first.str(); });
-}
-
-Status Logging::set_tag_verbosity_level(Slice tag, int new_verbosity_level) {
-  if (tag.empty()) {
-    return Status::Error("Log tag must be non-empty");
-  }
-
-  auto it = log_tags.find(tag);
-  if (it == log_tags.end()) {
-    return Status::Error("Log tag is not found");
-  }
-
-  std::lock_guard<std::mutex> lock(logging_mutex);
-  *it->second = clamp(new_verbosity_level, 1, VERBOSITY_NAME(NEVER));
-  return Status::OK();
-}
-
-Result<int> Logging::get_tag_verbosity_level(Slice tag) {
-  if (tag.empty()) {
-    return Status::Error("Log tag must be non-empty");
-  }
-
-  auto it = log_tags.find(tag);
-  if (it == log_tags.end()) {
-    return Status::Error("Log tag is not found");
-  }
-
-  std::lock_guard<std::mutex> lock(logging_mutex);
-  return *it->second;
-}
-
-void Logging::add_message(int log_verbosity_level, Slice message) {
-  int VERBOSITY_NAME(client) = clamp(log_verbosity_level, 0, VERBOSITY_NAME(NEVER));
-  VLOG(client) << message;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Logging.h b/third-party/td/td/td/telegram/Logging.h
deleted file mode 100644
index 9bbc8dc83c..0000000000
--- a/third-party/td/td/td/telegram/Logging.h
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Logging {
- public:
-  static Status set_current_stream(td_api::object_ptr<td_api::LogStream> stream);
-
-  static Result<td_api::object_ptr<td_api::LogStream>> get_current_stream();
-
-  static Status set_verbosity_level(int new_verbosity_level);
-
-  static int get_verbosity_level();
-
-  static vector<string> get_tags();
-
-  static Status set_tag_verbosity_level(Slice tag, int new_verbosity_level);
-
-  static Result<int> get_tag_verbosity_level(Slice tag);
-
-  static void add_message(int log_verbosity_level, Slice message);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MediaArea.cpp b/third-party/td/td/td/telegram/MediaArea.cpp
deleted file mode 100644
index 1358895f66..0000000000
--- a/third-party/td/td/td/telegram/MediaArea.cpp
+++ /dev/null
@@ -1,406 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MediaArea.h"
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/InlineQueriesManager.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/emoji.h"
-#include "td/utils/logging.h"
-
-#include <cmath>
-
-namespace td {
-
-MediaArea::MediaArea(Td *td, telegram_api::object_ptr<telegram_api::MediaArea> &&media_area_ptr) {
-  CHECK(media_area_ptr != nullptr);
-  switch (media_area_ptr->get_id()) {
-    case telegram_api::mediaAreaGeoPoint::ID: {
-      auto area = telegram_api::move_object_as<telegram_api::mediaAreaGeoPoint>(media_area_ptr);
-      coordinates_ = MediaAreaCoordinates(area->coordinates_);
-      location_ = Location(td, area->geo_);
-      if (area->address_ != nullptr) {
-        address_.country_iso2_ = area->address_->country_iso2_;
-        address_.state_ = area->address_->state_;
-        address_.city_ = area->address_->city_;
-        address_.street_ = area->address_->street_;
-      }
-      if (coordinates_.is_valid() && !location_.empty()) {
-        type_ = Type::Location;
-      } else {
-        LOG(ERROR) << "Receive " << to_string(area);
-      }
-      break;
-    }
-    case telegram_api::mediaAreaVenue::ID: {
-      auto area = telegram_api::move_object_as<telegram_api::mediaAreaVenue>(media_area_ptr);
-      coordinates_ = MediaAreaCoordinates(area->coordinates_);
-      venue_ = Venue(td, area->geo_, std::move(area->title_), std::move(area->address_), std::move(area->provider_),
-                     std::move(area->venue_id_), std::move(area->venue_type_));
-      if (coordinates_.is_valid() && !venue_.empty()) {
-        type_ = Type::Venue;
-      } else {
-        LOG(ERROR) << "Receive " << to_string(area);
-      }
-      break;
-    }
-    case telegram_api::mediaAreaSuggestedReaction::ID: {
-      auto area = telegram_api::move_object_as<telegram_api::mediaAreaSuggestedReaction>(media_area_ptr);
-      coordinates_ = MediaAreaCoordinates(area->coordinates_);
-      reaction_type_ = ReactionType(area->reaction_);
-      is_dark_ = area->dark_;
-      is_flipped_ = area->flipped_;
-      if (coordinates_.is_valid() && !reaction_type_.is_empty() && !reaction_type_.is_paid_reaction()) {
-        type_ = Type::Reaction;
-      } else {
-        LOG(ERROR) << "Receive " << to_string(area);
-      }
-      break;
-    }
-    case telegram_api::mediaAreaChannelPost::ID: {
-      auto area = telegram_api::move_object_as<telegram_api::mediaAreaChannelPost>(media_area_ptr);
-      coordinates_ = MediaAreaCoordinates(area->coordinates_);
-      auto channel_id = ChannelId(area->channel_id_);
-      auto server_message_id = ServerMessageId(area->msg_id_);
-      if (coordinates_.is_valid() && channel_id.is_valid() && server_message_id.is_valid()) {
-        type_ = Type::Message;
-        message_full_id_ = MessageFullId(DialogId(channel_id), MessageId(server_message_id));
-      } else {
-        LOG(ERROR) << "Receive " << to_string(area);
-      }
-      break;
-    }
-    case telegram_api::mediaAreaUrl::ID: {
-      auto area = telegram_api::move_object_as<telegram_api::mediaAreaUrl>(media_area_ptr);
-      coordinates_ = MediaAreaCoordinates(area->coordinates_);
-      if (coordinates_.is_valid()) {
-        type_ = Type::Url;
-        url_ = std::move(area->url_);
-      } else {
-        LOG(ERROR) << "Receive " << to_string(area);
-      }
-      break;
-    }
-    case telegram_api::mediaAreaWeather::ID: {
-      auto area = telegram_api::move_object_as<telegram_api::mediaAreaWeather>(media_area_ptr);
-      coordinates_ = MediaAreaCoordinates(area->coordinates_);
-      if (coordinates_.is_valid() && is_emoji(area->emoji_) && std::isfinite(area->temperature_c_)) {
-        type_ = Type::Weather;
-        url_ = std::move(area->emoji_);
-        temperature_ = area->temperature_c_;
-        color_ = area->color_;
-      } else {
-        LOG(ERROR) << "Receive " << to_string(area);
-      }
-      break;
-    }
-    case telegram_api::mediaAreaStarGift::ID: {
-      auto area = telegram_api::move_object_as<telegram_api::mediaAreaStarGift>(media_area_ptr);
-      coordinates_ = MediaAreaCoordinates(area->coordinates_);
-      if (coordinates_.is_valid() && !area->slug_.empty()) {
-        type_ = Type::StarGift;
-        url_ = std::move(area->slug_);
-      } else {
-        LOG(ERROR) << "Receive " << to_string(area);
-      }
-      break;
-    }
-    case telegram_api::inputMediaAreaVenue::ID:
-      LOG(ERROR) << "Receive " << to_string(media_area_ptr);
-      break;
-    case telegram_api::inputMediaAreaChannelPost::ID:
-      LOG(ERROR) << "Receive " << to_string(media_area_ptr);
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-MediaArea::MediaArea(Td *td, td_api::object_ptr<td_api::inputStoryArea> &&input_story_area,
-                     const vector<MediaArea> &old_media_areas) {
-  if (input_story_area == nullptr || input_story_area->position_ == nullptr || input_story_area->type_ == nullptr) {
-    return;
-  }
-  coordinates_ = MediaAreaCoordinates(input_story_area->position_);
-  if (!coordinates_.is_valid()) {
-    return;
-  }
-  switch (input_story_area->type_->get_id()) {
-    case td_api::inputStoryAreaTypeLocation::ID: {
-      auto type = td_api::move_object_as<td_api::inputStoryAreaTypeLocation>(input_story_area->type_);
-      location_ = Location(type->location_);
-      if (type->address_ != nullptr) {
-        address_.country_iso2_ = std::move(type->address_->country_code_);
-        address_.state_ = std::move(type->address_->state_);
-        address_.city_ = std::move(type->address_->city_);
-        address_.street_ = std::move(type->address_->street_);
-        if (!clean_input_string(address_.country_iso2_) || !clean_input_string(address_.state_) ||
-            !clean_input_string(address_.city_) || !clean_input_string(address_.street_)) {
-          break;
-        }
-      }
-      if (!location_.empty()) {
-        type_ = Type::Location;
-      }
-      break;
-    }
-    case td_api::inputStoryAreaTypeFoundVenue::ID: {
-      auto type = td_api::move_object_as<td_api::inputStoryAreaTypeFoundVenue>(input_story_area->type_);
-      const InlineMessageContent *inline_message_content =
-          td->inline_queries_manager_->get_inline_message_content(type->query_id_, type->result_id_);
-      if (inline_message_content == nullptr || inline_message_content->message_content == nullptr) {
-        break;
-      }
-      auto venue_ptr = get_message_content_venue(inline_message_content->message_content.get());
-      if (venue_ptr == nullptr || venue_ptr->empty()) {
-        break;
-      }
-      venue_ = *venue_ptr;
-      input_query_id_ = type->query_id_;
-      input_result_id_ = std::move(type->result_id_);
-      type_ = Type::Venue;
-      break;
-    }
-    case td_api::inputStoryAreaTypePreviousVenue::ID: {
-      auto type = td_api::move_object_as<td_api::inputStoryAreaTypePreviousVenue>(input_story_area->type_);
-      for (auto &old_media_area : old_media_areas) {
-        if (old_media_area.type_ == Type::Venue && !old_media_area.venue_.empty() &&
-            old_media_area.venue_.is_same(type->venue_provider_, type->venue_id_)) {
-          venue_ = old_media_area.venue_;
-          input_query_id_ = old_media_area.input_query_id_;
-          input_result_id_ = old_media_area.input_result_id_;
-          type_ = Type::Venue;
-          break;
-        }
-      }
-      break;
-    }
-    case td_api::inputStoryAreaTypeSuggestedReaction::ID: {
-      auto type = td_api::move_object_as<td_api::inputStoryAreaTypeSuggestedReaction>(input_story_area->type_);
-      reaction_type_ = ReactionType(type->reaction_type_);
-      is_dark_ = type->is_dark_;
-      is_flipped_ = type->is_flipped_;
-      if (!reaction_type_.is_empty() && !reaction_type_.is_paid_reaction()) {
-        type_ = Type::Reaction;
-      }
-      break;
-    }
-    case td_api::inputStoryAreaTypeMessage::ID: {
-      auto type = td_api::move_object_as<td_api::inputStoryAreaTypeMessage>(input_story_area->type_);
-      auto dialog_id = DialogId(type->chat_id_);
-      auto message_id = MessageId(type->message_id_);
-      auto message_full_id = MessageFullId(dialog_id, message_id);
-      for (auto &old_media_area : old_media_areas) {
-        if (old_media_area.type_ == Type::Message && old_media_area.message_full_id_ == message_full_id) {
-          message_full_id_ = message_full_id;
-          is_old_message_ = true;
-          type_ = Type::Message;
-          break;
-        }
-      }
-      if (!is_old_message_) {
-        if (!td->messages_manager_->can_share_message_in_story(message_full_id)) {
-          break;
-        }
-        message_full_id_ = message_full_id;
-        type_ = Type::Message;
-      }
-      break;
-    }
-    case td_api::inputStoryAreaTypeLink::ID: {
-      auto type = td_api::move_object_as<td_api::inputStoryAreaTypeLink>(input_story_area->type_);
-      if (!clean_input_string(type->url_)) {
-        break;
-      }
-      url_ = std::move(type->url_);
-      type_ = Type::Url;
-      break;
-    }
-    case td_api::inputStoryAreaTypeWeather::ID: {
-      auto type = td_api::move_object_as<td_api::inputStoryAreaTypeWeather>(input_story_area->type_);
-      if (!clean_input_string(type->emoji_) || !is_emoji(type->emoji_) || !std::isfinite(type->temperature_)) {
-        break;
-      }
-      url_ = std::move(type->emoji_);
-      temperature_ = type->temperature_;
-      color_ = type->background_color_;
-      type_ = Type::Weather;
-      break;
-    }
-    case td_api::inputStoryAreaTypeUpgradedGift::ID: {
-      auto type = td_api::move_object_as<td_api::inputStoryAreaTypeUpgradedGift>(input_story_area->type_);
-      if (!clean_input_string(type->gift_name_) || type->gift_name_.empty()) {
-        break;
-      }
-      url_ = std::move(type->gift_name_);
-      type_ = Type::StarGift;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-bool MediaArea::has_reaction_type(const ReactionType &reaction_type) const {
-  return reaction_type_ == reaction_type;
-}
-
-td_api::object_ptr<td_api::storyArea> MediaArea::get_story_area_object(
-    Td *td, const vector<std::pair<ReactionType, int32>> &reaction_counts) const {
-  CHECK(is_valid());
-  td_api::object_ptr<td_api::StoryAreaType> type;
-  switch (type_) {
-    case Type::Location:
-      type = td_api::make_object<td_api::storyAreaTypeLocation>(
-          location_.get_location_object(),
-          address_.is_empty() ? nullptr
-                              : td_api::make_object<td_api::locationAddress>(address_.country_iso2_, address_.state_,
-                                                                             address_.city_, address_.street_));
-      break;
-    case Type::Venue:
-      type = td_api::make_object<td_api::storyAreaTypeVenue>(venue_.get_venue_object());
-      break;
-    case Type::Reaction: {
-      int32 total_count = 0;
-      for (const auto &reaction_count : reaction_counts) {
-        if (reaction_count.first == reaction_type_) {
-          total_count = reaction_count.second;
-        }
-      }
-      type = td_api::make_object<td_api::storyAreaTypeSuggestedReaction>(reaction_type_.get_reaction_type_object(),
-                                                                         total_count, is_dark_, is_flipped_);
-      break;
-    }
-    case Type::Message:
-      type = td_api::make_object<td_api::storyAreaTypeMessage>(
-          td->dialog_manager_->get_chat_id_object(message_full_id_.get_dialog_id(), "storyAreaTypeMessage"),
-          message_full_id_.get_message_id().get());
-      break;
-    case Type::Url:
-      type = td_api::make_object<td_api::storyAreaTypeLink>(url_);
-      break;
-    case Type::Weather:
-      type = td_api::make_object<td_api::storyAreaTypeWeather>(temperature_, url_, color_);
-      break;
-    case Type::StarGift:
-      type = td_api::make_object<td_api::storyAreaTypeUpgradedGift>(url_);
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return td_api::make_object<td_api::storyArea>(coordinates_.get_story_area_position_object(), std::move(type));
-}
-
-telegram_api::object_ptr<telegram_api::MediaArea> MediaArea::get_input_media_area(const Td *td) const {
-  CHECK(is_valid());
-  switch (type_) {
-    case Type::Location: {
-      int32 flags = 0;
-      telegram_api::object_ptr<telegram_api::geoPointAddress> address;
-      if (!address_.is_empty()) {
-        int32 address_flags = 0;
-        if (!address_.state_.empty()) {
-          address_flags |= telegram_api::geoPointAddress::STATE_MASK;
-        }
-        if (!address_.city_.empty()) {
-          address_flags |= telegram_api::geoPointAddress::CITY_MASK;
-        }
-        if (!address_.street_.empty()) {
-          address_flags |= telegram_api::geoPointAddress::STREET_MASK;
-        }
-        address = telegram_api::make_object<telegram_api::geoPointAddress>(
-            address_flags, address_.country_iso2_, address_.state_, address_.city_, address_.street_);
-        flags |= telegram_api::mediaAreaGeoPoint::ADDRESS_MASK;
-      }
-
-      return telegram_api::make_object<telegram_api::mediaAreaGeoPoint>(
-          flags, coordinates_.get_input_media_area_coordinates(), location_.get_fake_geo_point(), std::move(address));
-    }
-    case Type::Venue:
-      if (input_query_id_ != 0) {
-        return telegram_api::make_object<telegram_api::inputMediaAreaVenue>(
-            coordinates_.get_input_media_area_coordinates(), input_query_id_, input_result_id_);
-      }
-      return venue_.get_input_media_area_venue(coordinates_.get_input_media_area_coordinates());
-    case Type::Reaction:
-      return telegram_api::make_object<telegram_api::mediaAreaSuggestedReaction>(
-          0, is_dark_, is_flipped_, coordinates_.get_input_media_area_coordinates(),
-          reaction_type_.get_input_reaction());
-    case Type::Message: {
-      auto channel_id = message_full_id_.get_dialog_id().get_channel_id();
-      auto server_message_id = message_full_id_.get_message_id().get_server_message_id();
-      if (!is_old_message_) {
-        auto input_channel = td->chat_manager_->get_input_channel(channel_id);
-        if (input_channel == nullptr) {
-          return nullptr;
-        }
-        return telegram_api::make_object<telegram_api::inputMediaAreaChannelPost>(
-            coordinates_.get_input_media_area_coordinates(), std::move(input_channel), server_message_id.get());
-      }
-      return telegram_api::make_object<telegram_api::mediaAreaChannelPost>(
-          coordinates_.get_input_media_area_coordinates(), channel_id.get(), server_message_id.get());
-    }
-    case Type::Url:
-      return telegram_api::make_object<telegram_api::mediaAreaUrl>(coordinates_.get_input_media_area_coordinates(),
-                                                                   url_);
-    case Type::Weather:
-      return telegram_api::make_object<telegram_api::mediaAreaWeather>(coordinates_.get_input_media_area_coordinates(),
-                                                                       url_, temperature_, color_);
-    case Type::StarGift:
-      return telegram_api::make_object<telegram_api::mediaAreaStarGift>(coordinates_.get_input_media_area_coordinates(),
-                                                                        url_);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-vector<telegram_api::object_ptr<telegram_api::MediaArea>> MediaArea::get_input_media_areas(
-    const Td *td, const vector<MediaArea> &media_areas) {
-  vector<telegram_api::object_ptr<telegram_api::MediaArea>> input_media_areas;
-  for (const auto &media_area : media_areas) {
-    auto input_media_area = media_area.get_input_media_area(td);
-    if (input_media_area != nullptr) {
-      input_media_areas.push_back(std::move(input_media_area));
-    }
-  }
-  return input_media_areas;
-}
-
-void MediaArea::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add_dialog_and_dependencies(message_full_id_.get_dialog_id());
-}
-
-bool operator==(const MediaArea &lhs, const MediaArea &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.coordinates_ == rhs.coordinates_ && lhs.location_ == rhs.location_ &&
-         lhs.venue_ == rhs.venue_ && lhs.message_full_id_ == rhs.message_full_id_ &&
-         lhs.input_query_id_ == rhs.input_query_id_ && lhs.input_result_id_ == rhs.input_result_id_ &&
-         lhs.reaction_type_ == rhs.reaction_type_ && std::fabs(lhs.temperature_ - rhs.temperature_) < 1e-6 &&
-         lhs.color_ == rhs.color_ && lhs.is_dark_ == rhs.is_dark_ && lhs.is_flipped_ == rhs.is_flipped_ &&
-         lhs.is_old_message_ == rhs.is_old_message_;
-}
-
-bool operator!=(const MediaArea &lhs, const MediaArea &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MediaArea &media_area) {
-  return string_builder << "StoryArea[" << media_area.coordinates_ << ": " << media_area.location_ << '/'
-                        << media_area.venue_ << '/' << media_area.reaction_type_ << '/' << media_area.message_full_id_
-                        << '/' << media_area.temperature_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MediaArea.h b/third-party/td/td/td/telegram/MediaArea.h
deleted file mode 100644
index c508bb70c7..0000000000
--- a/third-party/td/td/td/telegram/MediaArea.h
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Location.h"
-#include "td/telegram/MediaAreaCoordinates.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/Venue.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class MediaArea {
-  struct GeoPointAddress {
-    string country_iso2_;
-    string state_;
-    string city_;
-    string street_;
-
-    bool is_empty() const {
-      return country_iso2_.empty();
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  enum class Type : int32 { None, Location, Venue, Reaction, Message, Url, Weather, StarGift };
-  Type type_ = Type::None;
-  MediaAreaCoordinates coordinates_;
-  Location location_;
-  GeoPointAddress address_;
-  Venue venue_;
-  MessageFullId message_full_id_;
-  int64 input_query_id_ = 0;
-  string input_result_id_;
-  ReactionType reaction_type_;
-  string url_;
-  double temperature_ = 0.0;
-  int32 color_ = 0;
-  bool is_dark_ = false;
-  bool is_flipped_ = false;
-  bool is_old_message_ = false;
-
-  friend bool operator==(const MediaArea &lhs, const MediaArea &rhs);
-  friend bool operator!=(const MediaArea &lhs, const MediaArea &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MediaArea &media_area);
-
-  telegram_api::object_ptr<telegram_api::MediaArea> get_input_media_area(const Td *td) const;
-
- public:
-  MediaArea() = default;
-
-  MediaArea(Td *td, telegram_api::object_ptr<telegram_api::MediaArea> &&media_area_ptr);
-
-  MediaArea(Td *td, td_api::object_ptr<td_api::inputStoryArea> &&input_story_area,
-            const vector<MediaArea> &old_media_areas);
-
-  bool has_reaction_type(const ReactionType &reaction_type) const;
-
-  td_api::object_ptr<td_api::storyArea> get_story_area_object(
-      Td *td, const vector<std::pair<ReactionType, int32>> &reaction_counts) const;
-
-  static vector<telegram_api::object_ptr<telegram_api::MediaArea>> get_input_media_areas(
-      const Td *td, const vector<MediaArea> &media_areas);
-
-  bool is_valid() const {
-    return type_ != Type::None;
-  }
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const MediaArea &lhs, const MediaArea &rhs);
-bool operator!=(const MediaArea &lhs, const MediaArea &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MediaArea &media_area);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MediaArea.hpp b/third-party/td/td/td/telegram/MediaArea.hpp
deleted file mode 100644
index 4683fb561a..0000000000
--- a/third-party/td/td/td/telegram/MediaArea.hpp
+++ /dev/null
@@ -1,168 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MediaArea.h"
-#include "td/telegram/MediaAreaCoordinates.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MediaArea::GeoPointAddress::store(StorerT &storer) const {
-  bool has_country_iso2 = !country_iso2_.empty();
-  bool has_state = !state_.empty();
-  bool has_city = !city_.empty();
-  bool has_street = !street_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_country_iso2);
-  STORE_FLAG(has_state);
-  STORE_FLAG(has_city);
-  STORE_FLAG(has_street);
-  END_STORE_FLAGS();
-  if (has_country_iso2) {
-    td::store(country_iso2_, storer);
-  }
-  if (has_state) {
-    td::store(state_, storer);
-  }
-  if (has_city) {
-    td::store(city_, storer);
-  }
-  if (has_street) {
-    td::store(street_, storer);
-  }
-}
-
-template <class ParserT>
-void MediaArea::GeoPointAddress::parse(ParserT &parser) {
-  bool has_country_iso2;
-  bool has_state;
-  bool has_city;
-  bool has_street;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_country_iso2);
-  PARSE_FLAG(has_state);
-  PARSE_FLAG(has_city);
-  PARSE_FLAG(has_street);
-  END_PARSE_FLAGS();
-  if (has_country_iso2) {
-    td::parse(country_iso2_, parser);
-  }
-  if (has_state) {
-    td::parse(state_, parser);
-  }
-  if (has_city) {
-    td::parse(city_, parser);
-  }
-  if (has_street) {
-    td::parse(street_, parser);
-  }
-}
-
-template <class StorerT>
-void MediaArea::store(StorerT &storer) const {
-  using td::store;
-  bool has_input_query_id = input_query_id_ != 0;
-  bool has_address = !address_.is_empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_input_query_id);
-  STORE_FLAG(is_dark_);
-  STORE_FLAG(is_flipped_);
-  STORE_FLAG(is_old_message_);
-  STORE_FLAG(has_address);
-  END_STORE_FLAGS();
-  store(type_, storer);
-  store(coordinates_, storer);
-  switch (type_) {
-    case Type::Location:
-      store(location_, storer);
-      break;
-    case Type::Venue:
-      store(venue_, storer);
-      if (has_input_query_id) {
-        store(input_query_id_, storer);
-        store(input_result_id_, storer);
-      }
-      break;
-    case Type::Reaction:
-      store(reaction_type_, storer);
-      break;
-    case Type::Message:
-      store(message_full_id_, storer);
-      break;
-    case Type::Url:
-      store(url_, storer);
-      break;
-    case Type::Weather:
-      store(temperature_, storer);
-      store(url_, storer);
-      store(color_, storer);
-      break;
-    case Type::StarGift:
-      store(url_, storer);
-      break;
-    default:
-      UNREACHABLE();
-  }
-  if (has_address) {
-    store(address_, storer);
-  }
-}
-
-template <class ParserT>
-void MediaArea::parse(ParserT &parser) {
-  using td::parse;
-  bool has_input_query_id;
-  bool has_address;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_input_query_id);
-  PARSE_FLAG(is_dark_);
-  PARSE_FLAG(is_flipped_);
-  PARSE_FLAG(is_old_message_);
-  PARSE_FLAG(has_address);
-  END_PARSE_FLAGS();
-  parse(type_, parser);
-  parse(coordinates_, parser);
-  switch (type_) {
-    case Type::Location:
-      parse(location_, parser);
-      break;
-    case Type::Venue:
-      parse(venue_, parser);
-      if (has_input_query_id) {
-        parse(input_query_id_, parser);
-        parse(input_result_id_, parser);
-      }
-      break;
-    case Type::Reaction:
-      parse(reaction_type_, parser);
-      break;
-    case Type::Message:
-      parse(message_full_id_, parser);
-      break;
-    case Type::Url:
-      parse(url_, parser);
-      break;
-    case Type::Weather:
-      parse(temperature_, parser);
-      parse(url_, parser);
-      parse(color_, parser);
-      break;
-    case Type::StarGift:
-      parse(url_, parser);
-      break;
-    default:
-      parser.set_error("Load invalid area type");
-  }
-  if (has_address) {
-    parse(address_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MediaAreaCoordinates.cpp b/third-party/td/td/td/telegram/MediaAreaCoordinates.cpp
deleted file mode 100644
index 1729422462..0000000000
--- a/third-party/td/td/td/telegram/MediaAreaCoordinates.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MediaAreaCoordinates.h"
-
-#include "td/utils/misc.h"
-
-#include <cmath>
-
-namespace td {
-
-static double fix_double(double &value, double min_value = 0.0, double max_value = 100.0) {
-  if (!std::isfinite(value)) {
-    return 0.0;
-  }
-  return clamp(value, min_value, max_value);
-}
-
-void MediaAreaCoordinates::init(double x, double y, double width, double height, double rotation_angle, double radius) {
-  x_ = fix_double(x);
-  y_ = fix_double(y);
-  width_ = fix_double(width);
-  height_ = fix_double(height);
-  rotation_angle_ = fix_double(rotation_angle, -360.0, 360.0);
-  if (rotation_angle_ < 0) {
-    rotation_angle_ += 360.0;
-  }
-  radius_ = fix_double(radius);
-}
-
-MediaAreaCoordinates::MediaAreaCoordinates(
-    const telegram_api::object_ptr<telegram_api::mediaAreaCoordinates> &coordinates) {
-  if (coordinates == nullptr) {
-    return;
-  }
-  init(coordinates->x_, coordinates->y_, coordinates->w_, coordinates->h_, coordinates->rotation_,
-       coordinates->radius_);
-}
-
-MediaAreaCoordinates::MediaAreaCoordinates(const td_api::object_ptr<td_api::storyAreaPosition> &position) {
-  if (position == nullptr) {
-    return;
-  }
-
-  init(position->x_percentage_, position->y_percentage_, position->width_percentage_, position->height_percentage_,
-       position->rotation_angle_, position->corner_radius_percentage_);
-}
-
-td_api::object_ptr<td_api::storyAreaPosition> MediaAreaCoordinates::get_story_area_position_object() const {
-  CHECK(is_valid());
-  return td_api::make_object<td_api::storyAreaPosition>(x_, y_, width_, height_, rotation_angle_, radius_);
-}
-
-telegram_api::object_ptr<telegram_api::mediaAreaCoordinates> MediaAreaCoordinates::get_input_media_area_coordinates()
-    const {
-  CHECK(is_valid());
-  int32 flags = 0;
-  if (radius_ > 0) {
-    flags |= telegram_api::mediaAreaCoordinates::RADIUS_MASK;
-  }
-  return telegram_api::make_object<telegram_api::mediaAreaCoordinates>(flags, x_, y_, width_, height_, rotation_angle_,
-                                                                       radius_);
-}
-
-bool operator==(const MediaAreaCoordinates &lhs, const MediaAreaCoordinates &rhs) {
-  return std::abs(lhs.x_ - rhs.x_) < 1e-6 && std::abs(lhs.y_ - rhs.y_) < 1e-6 &&
-         std::abs(lhs.width_ - rhs.width_) < 1e-6 && std::abs(lhs.height_ - rhs.height_) < 1e-6 &&
-         std::abs(lhs.rotation_angle_ - rhs.rotation_angle_) < 1e-6 && std::abs(lhs.radius_ - rhs.radius_) < 1e-6;
-}
-
-bool operator!=(const MediaAreaCoordinates &lhs, const MediaAreaCoordinates &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MediaAreaCoordinates &coordinates) {
-  return string_builder << "StoryAreaPosition[" << coordinates.x_ << ", " << coordinates.y_ << ", "
-                        << coordinates.width_ << ", " << coordinates.height_ << ", " << coordinates.rotation_angle_
-                        << ", " << coordinates.radius_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MediaAreaCoordinates.h b/third-party/td/td/td/telegram/MediaAreaCoordinates.h
deleted file mode 100644
index 991d968ab9..0000000000
--- a/third-party/td/td/td/telegram/MediaAreaCoordinates.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class MediaAreaCoordinates {
-  double x_ = 0.0;
-  double y_ = 0.0;
-  double width_ = 0.0;
-  double height_ = 0.0;
-  double rotation_angle_ = 0.0;
-  double radius_ = 0.0;
-
-  friend bool operator==(const MediaAreaCoordinates &lhs, const MediaAreaCoordinates &rhs);
-  friend bool operator!=(const MediaAreaCoordinates &lhs, const MediaAreaCoordinates &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MediaAreaCoordinates &coordinates);
-
-  void init(double x, double y, double width, double height, double rotation_angle, double radius);
-
- public:
-  MediaAreaCoordinates() = default;
-
-  explicit MediaAreaCoordinates(const telegram_api::object_ptr<telegram_api::mediaAreaCoordinates> &coordinates);
-
-  explicit MediaAreaCoordinates(const td_api::object_ptr<td_api::storyAreaPosition> &position);
-
-  td_api::object_ptr<td_api::storyAreaPosition> get_story_area_position_object() const;
-
-  telegram_api::object_ptr<telegram_api::mediaAreaCoordinates> get_input_media_area_coordinates() const;
-
-  bool is_valid() const {
-    return width_ > 0.0 && height_ > 0.0;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const MediaAreaCoordinates &lhs, const MediaAreaCoordinates &rhs);
-bool operator!=(const MediaAreaCoordinates &lhs, const MediaAreaCoordinates &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MediaAreaCoordinates &coordinates);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MediaAreaCoordinates.hpp b/third-party/td/td/td/telegram/MediaAreaCoordinates.hpp
deleted file mode 100644
index 032cff4585..0000000000
--- a/third-party/td/td/td/telegram/MediaAreaCoordinates.hpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MediaAreaCoordinates.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MediaAreaCoordinates::store(StorerT &storer) const {
-  using td::store;
-  bool has_radius = radius_ > 0.0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_radius);
-  END_STORE_FLAGS();
-  store(x_, storer);
-  store(y_, storer);
-  store(width_, storer);
-  store(height_, storer);
-  store(rotation_angle_, storer);
-  if (has_radius) {
-    store(radius_, storer);
-  }
-}
-
-template <class ParserT>
-void MediaAreaCoordinates::parse(ParserT &parser) {
-  using td::parse;
-  bool has_radius;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_radius);
-  END_PARSE_FLAGS();
-  double x;
-  double y;
-  double width;
-  double height;
-  double rotation_angle;
-  double radius = 0.0;
-  parse(x, parser);
-  parse(y, parser);
-  parse(width, parser);
-  parse(height, parser);
-  parse(rotation_angle, parser);
-  if (has_radius) {
-    parse(radius, parser);
-  }
-  init(x, y, width, height, rotation_angle, radius);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageContent.cpp b/third-party/td/td/td/telegram/MessageContent.cpp
deleted file mode 100644
index 73d5adc92f..0000000000
--- a/third-party/td/td/td/telegram/MessageContent.cpp
+++ /dev/null
@@ -1,10034 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageContent.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AnimationsManager.hpp"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AudiosManager.hpp"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BackgroundInfo.hpp"
-#include "td/telegram/CallDiscardReason.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Contact.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/DocumentsManager.hpp"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/ForumTopicEditedData.h"
-#include "td/telegram/ForumTopicEditedData.hpp"
-#include "td/telegram/ForumTopicIcon.h"
-#include "td/telegram/ForumTopicIcon.hpp"
-#include "td/telegram/ForumTopicManager.h"
-#include "td/telegram/Game.h"
-#include "td/telegram/Game.hpp"
-#include "td/telegram/GiveawayParameters.h"
-#include "td/telegram/GiveawayParameters.hpp"
-#include "td/telegram/Global.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/HashtagHints.h"
-#include "td/telegram/InputGroupCallId.h"
-#include "td/telegram/InputInvoice.h"
-#include "td/telegram/InputInvoice.hpp"
-#include "td/telegram/InputMessageText.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageEntity.hpp"
-#include "td/telegram/MessageExtendedMedia.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageSearchFilter.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/OrderInfo.h"
-#include "td/telegram/OrderInfo.hpp"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/PollId.h"
-#include "td/telegram/PollId.hpp"
-#include "td/telegram/PollManager.h"
-#include "td/telegram/RepliedMessageInfo.h"
-#include "td/telegram/secret_api.hpp"
-#include "td/telegram/SecureValue.h"
-#include "td/telegram/SecureValue.hpp"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/SharedDialog.h"
-#include "td/telegram/SharedDialog.hpp"
-#include "td/telegram/StarGift.h"
-#include "td/telegram/StarGift.hpp"
-#include "td/telegram/StarGiftId.h"
-#include "td/telegram/StarGiftManager.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TopDialogManager.h"
-#include "td/telegram/TranscriptionManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Venue.h"
-#include "td/telegram/Version.h"
-#include "td/telegram/VideoNotesManager.h"
-#include "td/telegram/VideoNotesManager.hpp"
-#include "td/telegram/VideosManager.h"
-#include "td/telegram/VideosManager.hpp"
-#include "td/telegram/VoiceNotesManager.h"
-#include "td/telegram/VoiceNotesManager.hpp"
-#include "td/telegram/WebApp.h"
-#include "td/telegram/WebApp.hpp"
-#include "td/telegram/WebPageId.h"
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/emoji.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/MimeType.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/utf8.h"
-
-#include <limits>
-#include <unordered_set>
-#include <utility>
-
-namespace td {
-
-class MessageText final : public MessageContent {
- public:
-  FormattedText text;
-  WebPageId web_page_id;
-  bool force_small_media = false;
-  bool force_large_media = false;
-  bool skip_web_page_confirmation = false;
-  string web_page_url;
-
-  MessageText() = default;
-  MessageText(FormattedText text, WebPageId web_page_id, bool force_small_media, bool force_large_media,
-              bool skip_web_page_confirmation, string web_page_url)
-      : text(std::move(text))
-      , web_page_id(web_page_id)
-      , force_small_media(force_small_media)
-      , force_large_media(force_large_media)
-      , skip_web_page_confirmation(skip_web_page_confirmation)
-      , web_page_url(std::move(web_page_url)) {
-    if (this->web_page_url.empty()) {
-      this->force_small_media = false;
-      this->force_large_media = false;
-    } else if (this->force_large_media) {
-      this->force_small_media = false;
-    }
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Text;
-  }
-};
-
-class MessageAnimation final : public MessageContent {
- public:
-  FileId file_id;
-
-  FormattedText caption;
-  bool has_spoiler = false;
-
-  MessageAnimation() = default;
-  MessageAnimation(FileId file_id, FormattedText &&caption, bool has_spoiler)
-      : file_id(file_id), caption(std::move(caption)), has_spoiler(has_spoiler) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Animation;
-  }
-};
-
-class MessageAudio final : public MessageContent {
- public:
-  FileId file_id;
-
-  FormattedText caption;
-
-  MessageAudio() = default;
-  MessageAudio(FileId file_id, FormattedText &&caption) : file_id(file_id), caption(std::move(caption)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Audio;
-  }
-};
-
-class MessageDocument final : public MessageContent {
- public:
-  FileId file_id;
-
-  FormattedText caption;
-
-  MessageDocument() = default;
-  MessageDocument(FileId file_id, FormattedText &&caption) : file_id(file_id), caption(std::move(caption)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Document;
-  }
-};
-
-class MessagePhoto final : public MessageContent {
- public:
-  Photo photo;
-
-  FormattedText caption;
-  bool has_spoiler = false;
-
-  MessagePhoto() = default;
-  MessagePhoto(Photo &&photo, FormattedText &&caption, bool has_spoiler)
-      : photo(std::move(photo)), caption(std::move(caption)), has_spoiler(has_spoiler) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Photo;
-  }
-};
-
-class MessageSticker final : public MessageContent {
- public:
-  FileId file_id;
-  bool is_premium = false;
-
-  MessageSticker() = default;
-  MessageSticker(FileId file_id, bool is_premium) : file_id(file_id), is_premium(is_premium) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Sticker;
-  }
-};
-
-class MessageVideo final : public MessageContent {
- public:
-  FileId file_id;
-  vector<FileId> alternative_file_ids;
-  vector<FileId> hls_file_ids;
-  Photo cover;
-  int32 start_timestamp = 0;
-
-  FormattedText caption;
-  bool has_spoiler = false;
-
-  MessageVideo() = default;
-  MessageVideo(FileId file_id, vector<FileId> &&alternative_file_ids, vector<FileId> &&hls_file_ids, Photo &&cover,
-               int32 start_timestamp, FormattedText &&caption, bool has_spoiler)
-      : file_id(file_id)
-      , alternative_file_ids(std::move(alternative_file_ids))
-      , hls_file_ids(std::move(hls_file_ids))
-      , cover(std::move(cover))
-      , start_timestamp(start_timestamp)
-      , caption(std::move(caption))
-      , has_spoiler(has_spoiler) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Video;
-  }
-};
-
-class MessageVoiceNote final : public MessageContent {
- public:
-  FileId file_id;
-
-  FormattedText caption;
-  bool is_listened = false;
-
-  MessageVoiceNote() = default;
-  MessageVoiceNote(FileId file_id, FormattedText &&caption, bool is_listened)
-      : file_id(file_id), caption(std::move(caption)), is_listened(is_listened) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::VoiceNote;
-  }
-};
-
-class MessageContact final : public MessageContent {
- public:
-  Contact contact;
-
-  MessageContact() = default;
-  explicit MessageContact(Contact &&contact) : contact(std::move(contact)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Contact;
-  }
-};
-
-class MessageLocation final : public MessageContent {
- public:
-  Location location;
-
-  MessageLocation() = default;
-  explicit MessageLocation(Location &&location) : location(std::move(location)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Location;
-  }
-};
-
-class MessageVenue final : public MessageContent {
- public:
-  Venue venue;
-
-  MessageVenue() = default;
-  explicit MessageVenue(Venue &&venue) : venue(std::move(venue)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Venue;
-  }
-};
-
-class MessageChatCreate final : public MessageContent {
- public:
-  string title;
-  vector<UserId> participant_user_ids;
-
-  MessageChatCreate() = default;
-  MessageChatCreate(string &&title, vector<UserId> &&participant_user_ids)
-      : title(std::move(title)), participant_user_ids(std::move(participant_user_ids)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatCreate;
-  }
-};
-
-class MessageChatChangeTitle final : public MessageContent {
- public:
-  string title;
-
-  MessageChatChangeTitle() = default;
-  explicit MessageChatChangeTitle(string &&title) : title(std::move(title)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatChangeTitle;
-  }
-};
-
-class MessageChatChangePhoto final : public MessageContent {
- public:
-  Photo photo;
-
-  MessageChatChangePhoto() = default;
-  explicit MessageChatChangePhoto(Photo &&photo) : photo(std::move(photo)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatChangePhoto;
-  }
-};
-
-class MessageChatDeletePhoto final : public MessageContent {
- public:
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatDeletePhoto;
-  }
-};
-
-class MessageChatDeleteHistory final : public MessageContent {
- public:
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatDeleteHistory;
-  }
-};
-
-class MessageChatAddUsers final : public MessageContent {
- public:
-  vector<UserId> user_ids;
-
-  MessageChatAddUsers() = default;
-  explicit MessageChatAddUsers(vector<UserId> &&user_ids) : user_ids(std::move(user_ids)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatAddUsers;
-  }
-};
-
-class MessageChatJoinedByLink final : public MessageContent {
- public:
-  bool is_approved = false;
-
-  MessageChatJoinedByLink() = default;
-  explicit MessageChatJoinedByLink(bool is_approved) : is_approved(is_approved) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatJoinedByLink;
-  }
-};
-
-class MessageChatDeleteUser final : public MessageContent {
- public:
-  UserId user_id;
-
-  MessageChatDeleteUser() = default;
-  explicit MessageChatDeleteUser(UserId user_id) : user_id(user_id) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatDeleteUser;
-  }
-};
-
-class MessageChatMigrateTo final : public MessageContent {
- public:
-  ChannelId migrated_to_channel_id;
-
-  MessageChatMigrateTo() = default;
-  explicit MessageChatMigrateTo(ChannelId migrated_to_channel_id) : migrated_to_channel_id(migrated_to_channel_id) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatMigrateTo;
-  }
-};
-
-class MessageChannelCreate final : public MessageContent {
- public:
-  string title;
-
-  MessageChannelCreate() = default;
-  explicit MessageChannelCreate(string &&title) : title(std::move(title)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChannelCreate;
-  }
-};
-
-class MessageChannelMigrateFrom final : public MessageContent {
- public:
-  string title;
-  ChatId migrated_from_chat_id;
-
-  MessageChannelMigrateFrom() = default;
-  MessageChannelMigrateFrom(string &&title, ChatId migrated_from_chat_id)
-      : title(std::move(title)), migrated_from_chat_id(migrated_from_chat_id) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChannelMigrateFrom;
-  }
-};
-
-class MessagePinMessage final : public MessageContent {
- public:
-  MessageId message_id;
-
-  MessagePinMessage() = default;
-  explicit MessagePinMessage(MessageId message_id) : message_id(message_id) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PinMessage;
-  }
-};
-
-class MessageGame final : public MessageContent {
- public:
-  Game game;
-
-  MessageGame() = default;
-  explicit MessageGame(Game &&game) : game(std::move(game)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Game;
-  }
-};
-
-class MessageGameScore final : public MessageContent {
- public:
-  MessageId game_message_id;
-  int64 game_id = 0;
-  int32 score = 0;
-
-  MessageGameScore() = default;
-  MessageGameScore(MessageId game_message_id, int64 game_id, int32 score)
-      : game_message_id(game_message_id), game_id(game_id), score(score) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::GameScore;
-  }
-};
-
-class MessageScreenshotTaken final : public MessageContent {
- public:
-  MessageContentType get_type() const final {
-    return MessageContentType::ScreenshotTaken;
-  }
-};
-
-class MessageChatSetTtl final : public MessageContent {
- public:
-  int32 ttl = 0;
-  UserId from_user_id;
-
-  MessageChatSetTtl() = default;
-  MessageChatSetTtl(int32 ttl, UserId from_user_id) : ttl(ttl), from_user_id(from_user_id) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatSetTtl;
-  }
-};
-
-class MessageUnsupported final : public MessageContent {
- public:
-  static constexpr int32 CURRENT_VERSION = 41;
-  int32 version = CURRENT_VERSION;
-
-  MessageUnsupported() = default;
-  explicit MessageUnsupported(int32 version) : version(version) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Unsupported;
-  }
-};
-
-class MessageCall final : public MessageContent {
- public:
-  int64 call_id = 0;
-  int32 duration = 0;
-  CallDiscardReason discard_reason;
-  bool is_video = false;
-
-  MessageCall() = default;
-  MessageCall(int64 call_id, int32 duration, CallDiscardReason discard_reason, bool is_video)
-      : call_id(call_id), duration(duration), discard_reason(discard_reason), is_video(is_video) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Call;
-  }
-};
-
-class MessageInvoice final : public MessageContent {
- public:
-  InputInvoice input_invoice;
-
-  MessageInvoice() = default;
-  explicit MessageInvoice(InputInvoice &&input_invoice) : input_invoice(std::move(input_invoice)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Invoice;
-  }
-};
-
-class MessagePaymentSuccessful final : public MessageContent {
- public:
-  DialogId invoice_dialog_id;
-  MessageId invoice_message_id;
-  string currency;
-  int64 total_amount = 0;
-  string invoice_payload;  // or invoice_slug for users
-  int32 subscription_until_date = false;
-  bool is_recurring = false;
-  bool is_first_recurring = false;
-
-  // bots only part
-  string shipping_option_id;
-  unique_ptr<OrderInfo> order_info;
-  string telegram_payment_charge_id;
-  string provider_payment_charge_id;
-
-  MessagePaymentSuccessful() = default;
-  MessagePaymentSuccessful(DialogId invoice_dialog_id, MessageId invoice_message_id, string &&currency,
-                           int64 total_amount, string &&invoice_payload, int32 subscription_until_date,
-                           bool is_recurring, bool is_first_recurring)
-      : invoice_dialog_id(invoice_dialog_id)
-      , invoice_message_id(invoice_message_id)
-      , currency(std::move(currency))
-      , total_amount(total_amount)
-      , invoice_payload(std::move(invoice_payload))
-      , subscription_until_date(subscription_until_date)
-      , is_recurring(is_recurring || is_first_recurring)
-      , is_first_recurring(is_first_recurring) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PaymentSuccessful;
-  }
-};
-
-class MessageVideoNote final : public MessageContent {
- public:
-  FileId file_id;
-
-  bool is_viewed = false;
-
-  MessageVideoNote() = default;
-  MessageVideoNote(FileId file_id, bool is_viewed) : file_id(file_id), is_viewed(is_viewed) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::VideoNote;
-  }
-};
-
-class MessageContactRegistered final : public MessageContent {
- public:
-  MessageContentType get_type() const final {
-    return MessageContentType::ContactRegistered;
-  }
-};
-
-class MessageExpiredPhoto final : public MessageContent {
- public:
-  MessageExpiredPhoto() = default;
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ExpiredPhoto;
-  }
-};
-
-class MessageExpiredVideo final : public MessageContent {
- public:
-  MessageExpiredVideo() = default;
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ExpiredVideo;
-  }
-};
-
-class MessageLiveLocation final : public MessageContent {
- public:
-  Location location;
-  int32 period = 0;
-  int32 heading = 0;
-  int32 proximity_alert_radius = 0;
-
-  MessageLiveLocation() = default;
-  MessageLiveLocation(Location &&location, int32 period, int32 heading, int32 proximity_alert_radius)
-      : location(std::move(location))
-      , period(period)
-      , heading(heading)
-      , proximity_alert_radius(proximity_alert_radius) {
-    if (period < 0) {
-      this->period = 0;
-    }
-    if (heading < 0 || heading > 360) {
-      LOG(ERROR) << "Receive wrong heading " << heading;
-      this->heading = 0;
-    }
-    if (proximity_alert_radius < 0) {
-      this->proximity_alert_radius = 0;
-    }
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::LiveLocation;
-  }
-};
-
-class MessageCustomServiceAction final : public MessageContent {
- public:
-  string message;
-
-  MessageCustomServiceAction() = default;
-  explicit MessageCustomServiceAction(string &&message) : message(std::move(message)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::CustomServiceAction;
-  }
-};
-
-class MessageWebsiteConnected final : public MessageContent {
- public:
-  string domain_name;
-
-  MessageWebsiteConnected() = default;
-  explicit MessageWebsiteConnected(string &&domain_name) : domain_name(std::move(domain_name)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::WebsiteConnected;
-  }
-};
-
-class MessagePassportDataSent final : public MessageContent {
- public:
-  vector<SecureValueType> types;
-
-  MessagePassportDataSent() = default;
-  explicit MessagePassportDataSent(vector<SecureValueType> &&types) : types(std::move(types)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PassportDataSent;
-  }
-};
-
-class MessagePassportDataReceived final : public MessageContent {
- public:
-  vector<EncryptedSecureValue> values;
-  EncryptedSecureCredentials credentials;
-
-  MessagePassportDataReceived() = default;
-  MessagePassportDataReceived(vector<EncryptedSecureValue> &&values, EncryptedSecureCredentials &&credentials)
-      : values(std::move(values)), credentials(std::move(credentials)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PassportDataReceived;
-  }
-};
-
-class MessagePoll final : public MessageContent {
- public:
-  PollId poll_id;
-
-  MessagePoll() = default;
-  explicit MessagePoll(PollId poll_id) : poll_id(poll_id) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Poll;
-  }
-};
-
-class MessageDice final : public MessageContent {
- public:
-  string emoji;
-  int32 dice_value = 0;
-
-  static constexpr const char *DEFAULT_EMOJI = "🎲";
-
-  MessageDice() = default;
-  MessageDice(const string &emoji, int32 dice_value)
-      : emoji(emoji.empty() ? string(DEFAULT_EMOJI) : remove_emoji_modifiers(emoji)), dice_value(dice_value) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Dice;
-  }
-
-  bool is_valid() const {
-    if (dice_value < 0) {
-      return false;
-    }
-    if (emoji == DEFAULT_EMOJI || emoji == "🎯") {
-      return dice_value <= 6;
-    }
-    return dice_value <= 1000;
-  }
-};
-
-class MessageProximityAlertTriggered final : public MessageContent {
- public:
-  DialogId traveler_dialog_id;
-  DialogId watcher_dialog_id;
-  int32 distance = 0;
-
-  MessageProximityAlertTriggered() = default;
-  MessageProximityAlertTriggered(DialogId traveler_dialog_id, DialogId watcher_dialog_id, int32 distance)
-      : traveler_dialog_id(traveler_dialog_id), watcher_dialog_id(watcher_dialog_id), distance(distance) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ProximityAlertTriggered;
-  }
-};
-
-class MessageGroupCall final : public MessageContent {
- public:
-  InputGroupCallId input_group_call_id;
-  int32 duration = -1;
-  int32 schedule_date = -1;
-
-  MessageGroupCall() = default;
-  MessageGroupCall(InputGroupCallId input_group_call_id, int32 duration, int32 schedule_date)
-      : input_group_call_id(input_group_call_id), duration(duration), schedule_date(schedule_date) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::GroupCall;
-  }
-};
-
-class MessageInviteToGroupCall final : public MessageContent {
- public:
-  InputGroupCallId input_group_call_id;
-  vector<UserId> user_ids;
-
-  MessageInviteToGroupCall() = default;
-  MessageInviteToGroupCall(InputGroupCallId input_group_call_id, vector<UserId> &&user_ids)
-      : input_group_call_id(input_group_call_id), user_ids(std::move(user_ids)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::InviteToGroupCall;
-  }
-};
-
-class MessageChatSetTheme final : public MessageContent {
- public:
-  string emoji;
-
-  MessageChatSetTheme() = default;
-  explicit MessageChatSetTheme(string &&emoji) : emoji(std::move(emoji)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ChatSetTheme;
-  }
-};
-
-class MessageWebViewDataSent final : public MessageContent {
- public:
-  string button_text;
-
-  MessageWebViewDataSent() = default;
-  explicit MessageWebViewDataSent(string &&button_text) : button_text(std::move(button_text)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::WebViewDataSent;
-  }
-};
-
-class MessageWebViewDataReceived final : public MessageContent {
- public:
-  string button_text;
-  string data;
-
-  MessageWebViewDataReceived() = default;
-  MessageWebViewDataReceived(string &&button_text, string &&data)
-      : button_text(std::move(button_text)), data(std::move(data)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::WebViewDataReceived;
-  }
-};
-
-class MessageGiftPremium final : public MessageContent {
- public:
-  FormattedText text;
-  string currency;
-  int64 amount = 0;
-  string crypto_currency;
-  int64 crypto_amount = 0;
-  int32 months = 0;
-
-  MessageGiftPremium() = default;
-  MessageGiftPremium(FormattedText &&text, string &&currency, int64 amount, string &&crypto_currency,
-                     int64 crypto_amount, int32 months)
-      : text(std::move(text))
-      , currency(std::move(currency))
-      , amount(amount)
-      , crypto_currency(std::move(crypto_currency))
-      , crypto_amount(crypto_amount)
-      , months(months) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::GiftPremium;
-  }
-};
-
-class MessageTopicCreate final : public MessageContent {
- public:
-  string title;
-  ForumTopicIcon icon;
-
-  MessageTopicCreate() = default;
-  MessageTopicCreate(string &&title, ForumTopicIcon &&icon) : title(std::move(title)), icon(std::move(icon)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::TopicCreate;
-  }
-};
-
-class MessageTopicEdit final : public MessageContent {
- public:
-  ForumTopicEditedData edited_data;
-
-  MessageTopicEdit() = default;
-  explicit MessageTopicEdit(ForumTopicEditedData &&edited_data) : edited_data(std::move(edited_data)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::TopicEdit;
-  }
-};
-
-class MessageSuggestProfilePhoto final : public MessageContent {
- public:
-  Photo photo;
-
-  MessageSuggestProfilePhoto() = default;
-  explicit MessageSuggestProfilePhoto(Photo &&photo) : photo(std::move(photo)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::SuggestProfilePhoto;
-  }
-};
-
-class MessageWriteAccessAllowed final : public MessageContent {
- public:
-  MessageContentType get_type() const final {
-    return MessageContentType::WriteAccessAllowed;
-  }
-};
-
-class MessageRequestedDialog final : public MessageContent {
- public:
-  vector<DialogId> shared_dialog_ids;
-  int32 button_id = 0;
-
-  MessageRequestedDialog() = default;
-  MessageRequestedDialog(vector<DialogId> &&shared_dialog_ids, int32 button_id)
-      : shared_dialog_ids(std::move(shared_dialog_ids)), button_id(button_id) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::RequestedDialog;
-  }
-};
-
-class MessageWebViewWriteAccessAllowed final : public MessageContent {
- public:
-  WebApp web_app;
-
-  MessageWebViewWriteAccessAllowed() = default;
-  explicit MessageWebViewWriteAccessAllowed(WebApp &&web_app) : web_app(std::move(web_app)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::WebViewWriteAccessAllowed;
-  }
-};
-
-class MessageSetBackground final : public MessageContent {
- public:
-  MessageId old_message_id;
-  BackgroundInfo background_info;
-  bool for_both = false;
-
-  MessageSetBackground() = default;
-  MessageSetBackground(MessageId old_message_id, BackgroundInfo background_info, bool for_both)
-      : old_message_id(old_message_id), background_info(std::move(background_info)), for_both(for_both) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::SetBackground;
-  }
-};
-
-class MessageStory final : public MessageContent {
- public:
-  StoryFullId story_full_id;
-  bool via_mention = false;
-
-  MessageStory() = default;
-  MessageStory(StoryFullId story_full_id, bool via_mention) : story_full_id(story_full_id), via_mention(via_mention) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Story;
-  }
-};
-
-class MessageWriteAccessAllowedByRequest final : public MessageContent {
- public:
-  MessageContentType get_type() const final {
-    return MessageContentType::WriteAccessAllowedByRequest;
-  }
-};
-
-class MessageGiftCode final : public MessageContent {
- public:
-  DialogId creator_dialog_id;
-  FormattedText text;
-  int32 months = 0;
-  string currency;
-  int64 amount = 0;
-  string crypto_currency;
-  int64 crypto_amount = 0;
-  bool via_giveaway = false;
-  bool is_unclaimed = false;
-  string code;
-
-  MessageGiftCode() = default;
-  MessageGiftCode(DialogId creator_dialog_id, FormattedText &&text, int32 months, string &&currency, int64 amount,
-                  string &&crypto_currency, int64 crypto_amount, bool via_giveaway, bool is_unclaimed, string &&code)
-      : creator_dialog_id(creator_dialog_id)
-      , text(std::move(text))
-      , months(months)
-      , currency(std::move(currency))
-      , amount(amount)
-      , crypto_currency(std::move(crypto_currency))
-      , crypto_amount(crypto_amount)
-      , via_giveaway(via_giveaway || is_unclaimed)
-      , is_unclaimed(is_unclaimed)
-      , code(std::move(code)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::GiftCode;
-  }
-};
-
-class MessageGiveaway final : public MessageContent {
- public:
-  GiveawayParameters giveaway_parameters;
-  int32 quantity = 0;
-  int32 months = 0;
-  int64 star_count = 0;
-
-  MessageGiveaway() = default;
-  MessageGiveaway(GiveawayParameters giveaway_parameters, int32 quantity, int32 months, int64 star_count)
-      : giveaway_parameters(std::move(giveaway_parameters))
-      , quantity(quantity)
-      , months(months)
-      , star_count(star_count) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::Giveaway;
-  }
-};
-
-class MessageGiveawayLaunch final : public MessageContent {
- public:
-  int64 star_count = 0;
-
-  MessageGiveawayLaunch() = default;
-  explicit MessageGiveawayLaunch(int64 star_count) : star_count(star_count) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::GiveawayLaunch;
-  }
-};
-
-class MessageGiveawayResults final : public MessageContent {
- public:
-  MessageId giveaway_message_id;
-  int32 winner_count = 0;
-  int32 unclaimed_count = 0;
-  bool is_star_giveaway = false;
-
-  MessageGiveawayResults() = default;
-  MessageGiveawayResults(MessageId giveaway_message_id, int32 winner_count, int32 unclaimed_count,
-                         bool is_star_giveaway)
-      : giveaway_message_id(giveaway_message_id)
-      , winner_count(winner_count)
-      , unclaimed_count(unclaimed_count)
-      , is_star_giveaway(is_star_giveaway) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::GiveawayResults;
-  }
-};
-
-class MessageGiveawayWinners final : public MessageContent {
- public:
-  MessageId giveaway_message_id;
-  ChannelId boosted_channel_id;
-  int32 additional_dialog_count = 0;
-  int32 month_count = 0;
-  int64 star_count = 0;
-  string prize_description;
-  int32 winners_selection_date = 0;
-  bool only_new_subscribers = false;
-  bool was_refunded = false;
-  int32 winner_count = 0;
-  int32 unclaimed_count = 0;
-  vector<UserId> winner_user_ids;
-
-  MessageGiveawayWinners() = default;
-  MessageGiveawayWinners(MessageId giveaway_message_id, ChannelId boosted_channel_id, int32 additional_dialog_count,
-                         int32 month_count, int64 star_count, string &&prize_description, int32 winners_selection_date,
-                         bool only_new_subscribers, bool was_refunded, int32 winner_count, int32 unclaimed_count,
-                         vector<UserId> &&winner_user_ids)
-      : giveaway_message_id(giveaway_message_id)
-      , boosted_channel_id(boosted_channel_id)
-      , additional_dialog_count(additional_dialog_count)
-      , month_count(month_count)
-      , star_count(star_count)
-      , prize_description(std::move(prize_description))
-      , winners_selection_date(winners_selection_date)
-      , only_new_subscribers(only_new_subscribers)
-      , was_refunded(was_refunded)
-      , winner_count(winner_count)
-      , unclaimed_count(unclaimed_count)
-      , winner_user_ids(std::move(winner_user_ids)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::GiveawayWinners;
-  }
-};
-
-class MessageExpiredVideoNote final : public MessageContent {
- public:
-  MessageExpiredVideoNote() = default;
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ExpiredVideoNote;
-  }
-};
-
-class MessageExpiredVoiceNote final : public MessageContent {
- public:
-  MessageExpiredVoiceNote() = default;
-
-  MessageContentType get_type() const final {
-    return MessageContentType::ExpiredVoiceNote;
-  }
-};
-
-class MessageBoostApply final : public MessageContent {
- public:
-  int32 boost_count = 0;
-
-  MessageBoostApply() = default;
-  explicit MessageBoostApply(int32 boost_count) : boost_count(boost_count) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::BoostApply;
-  }
-};
-
-class MessageDialogShared final : public MessageContent {
- public:
-  vector<SharedDialog> shared_dialogs;
-  int32 button_id = 0;
-
-  MessageDialogShared() = default;
-  MessageDialogShared(vector<SharedDialog> &&shared_dialogs, int32 button_id)
-      : shared_dialogs(std::move(shared_dialogs)), button_id(button_id) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::DialogShared;
-  }
-};
-
-class MessagePaidMedia final : public MessageContent {
- public:
-  vector<MessageExtendedMedia> media;
-  FormattedText caption;
-  int64 star_count = 0;
-  string payload;
-
-  MessagePaidMedia() = default;
-  MessagePaidMedia(vector<MessageExtendedMedia> &&media, FormattedText &&caption, int64 star_count, string payload)
-      : media(std::move(media)), caption(std::move(caption)), star_count(star_count), payload(std::move(payload)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PaidMedia;
-  }
-};
-
-class MessagePaymentRefunded final : public MessageContent {
- public:
-  DialogId dialog_id;
-  string currency;
-  int64 total_amount = 0;
-  string invoice_payload;
-  string telegram_payment_charge_id;
-  string provider_payment_charge_id;
-
-  MessagePaymentRefunded() = default;
-  MessagePaymentRefunded(DialogId dialog_id, string currency, int64 total_amount, string invoice_payload,
-                         string telegram_payment_charge_id, string provider_payment_charge_id)
-      : dialog_id(dialog_id)
-      , currency(std::move(currency))
-      , total_amount(total_amount)
-      , invoice_payload(std::move(invoice_payload))
-      , telegram_payment_charge_id(std::move(telegram_payment_charge_id))
-      , provider_payment_charge_id(std::move(provider_payment_charge_id)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PaymentRefunded;
-  }
-};
-
-class MessageGiftStars final : public MessageContent {
- public:
-  string currency;
-  int64 amount = 0;
-  string crypto_currency;
-  int64 crypto_amount = 0;
-  int64 star_count = 0;
-  string transaction_id;
-
-  MessageGiftStars() = default;
-  MessageGiftStars(string &&currency, int64 amount, string &&crypto_currency, int64 crypto_amount, int64 star_count,
-                   string &&transaction_id)
-      : currency(std::move(currency))
-      , amount(amount)
-      , crypto_currency(std::move(crypto_currency))
-      , crypto_amount(crypto_amount)
-      , star_count(star_count)
-      , transaction_id(std::move(transaction_id)) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::GiftStars;
-  }
-};
-
-class MessagePrizeStars final : public MessageContent {
- public:
-  int64 star_count = 0;
-  string transaction_id;
-  DialogId boosted_dialog_id;
-  MessageId giveaway_message_id;
-  bool is_unclaimed = false;
-
-  MessagePrizeStars() = default;
-  MessagePrizeStars(int64 star_count, string &&transaction_id, DialogId boosted_dialog_id,
-                    MessageId giveaway_message_id, bool is_unclaimed)
-      : star_count(star_count)
-      , transaction_id(std::move(transaction_id))
-      , boosted_dialog_id(boosted_dialog_id)
-      , giveaway_message_id(giveaway_message_id)
-      , is_unclaimed(is_unclaimed) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PrizeStars;
-  }
-};
-
-class MessageStarGift final : public MessageContent {
- public:
-  StarGift star_gift;
-  DialogId sender_dialog_id;
-  DialogId owner_dialog_id;
-  int64 saved_id = 0;
-  FormattedText text;
-  int64 convert_star_count = 0;
-  int64 upgrade_star_count = 0;
-  MessageId upgrade_message_id;
-  bool name_hidden = false;
-  bool is_saved = false;
-  bool can_upgrade = false;
-  bool was_converted = false;
-  bool was_upgraded = false;
-  bool was_refunded = false;
-
-  MessageStarGift() = default;
-  MessageStarGift(StarGift &&star_gift, DialogId sender_dialog_id, DialogId owner_dialog_id, int64 saved_id,
-                  FormattedText &&text, int64 convert_star_count, int64 upgrade_star_count,
-                  MessageId upgrade_message_id, bool name_hidden, bool is_saved, bool can_upgrade, bool was_converted,
-                  bool was_upgraded, bool was_refunded)
-      : star_gift(std::move(star_gift))
-      , sender_dialog_id(sender_dialog_id)
-      , owner_dialog_id(owner_dialog_id)
-      , saved_id(saved_id)
-      , text(std::move(text))
-      , convert_star_count(convert_star_count)
-      , upgrade_star_count(upgrade_star_count)
-      , upgrade_message_id(upgrade_message_id)
-      , name_hidden(name_hidden)
-      , is_saved(is_saved)
-      , can_upgrade(can_upgrade)
-      , was_converted(was_converted)
-      , was_upgraded(was_upgraded)
-      , was_refunded(was_refunded) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::StarGift;
-  }
-};
-
-class MessageStarGiftUnique final : public MessageContent {
- public:
-  StarGift star_gift;
-  DialogId sender_dialog_id;
-  DialogId owner_dialog_id;
-  int64 saved_id = 0;
-  int64 transfer_star_count = 0;
-  int32 can_export_at = 0;
-  bool is_saved = false;
-  bool is_upgrade = false;
-  bool can_transfer = false;
-  bool was_transferred = false;
-  bool was_refunded = false;
-
-  MessageStarGiftUnique() = default;
-  MessageStarGiftUnique(StarGift &&star_gift, DialogId sender_dialog_id, DialogId owner_dialog_id, int64 saved_id,
-                        int64 transfer_star_count, int32 can_export_at, bool is_saved, bool is_upgrade,
-                        bool can_transfer, bool was_transferred, bool was_refunded)
-      : star_gift(std::move(star_gift))
-      , sender_dialog_id(sender_dialog_id)
-      , owner_dialog_id(owner_dialog_id)
-      , saved_id(saved_id)
-      , transfer_star_count(transfer_star_count)
-      , can_export_at(can_export_at)
-      , is_saved(is_saved)
-      , is_upgrade(is_upgrade)
-      , can_transfer(can_transfer)
-      , was_transferred(was_transferred)
-      , was_refunded(was_refunded) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::StarGiftUnique;
-  }
-};
-
-class MessagePaidMessagesRefunded final : public MessageContent {
- public:
-  int32 message_count = 0;
-  int64 star_count = 0;
-
-  MessagePaidMessagesRefunded() = default;
-  MessagePaidMessagesRefunded(int32 message_count, int64 star_count)
-      : message_count(message_count), star_count(star_count) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PaidMessagesRefunded;
-  }
-};
-
-class MessagePaidMessagesPrice final : public MessageContent {
- public:
-  int64 star_count = 0;
-
-  MessagePaidMessagesPrice() = default;
-  explicit MessagePaidMessagesPrice(int64 star_count) : star_count(star_count) {
-  }
-
-  MessageContentType get_type() const final {
-    return MessageContentType::PaidMessagesPrice;
-  }
-};
-
-template <class StorerT>
-static void store(const MessageContent *content, StorerT &storer) {
-  CHECK(content != nullptr);
-
-  Td *td = storer.context()->td().get_actor_unsafe();
-  CHECK(td != nullptr);
-
-  auto content_type = content->get_type();
-  store(content_type, storer);
-
-  switch (content_type) {
-    case MessageContentType::Animation: {
-      const auto *m = static_cast<const MessageAnimation *>(content);
-      td->animations_manager_->store_animation(m->file_id, storer);
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->has_spoiler);
-      END_STORE_FLAGS();
-      store(m->caption, storer);
-      break;
-    }
-    case MessageContentType::Audio: {
-      const auto *m = static_cast<const MessageAudio *>(content);
-      td->audios_manager_->store_audio(m->file_id, storer);
-      store(m->caption, storer);
-      store(true, storer);
-      break;
-    }
-    case MessageContentType::Contact: {
-      const auto *m = static_cast<const MessageContact *>(content);
-      store(m->contact, storer);
-      break;
-    }
-    case MessageContentType::Document: {
-      const auto *m = static_cast<const MessageDocument *>(content);
-      td->documents_manager_->store_document(m->file_id, storer);
-      store(m->caption, storer);
-      break;
-    }
-    case MessageContentType::Game: {
-      const auto *m = static_cast<const MessageGame *>(content);
-      store(m->game, storer);
-      break;
-    }
-    case MessageContentType::Invoice: {
-      const auto *m = static_cast<const MessageInvoice *>(content);
-      store(m->input_invoice, storer);
-      break;
-    }
-    case MessageContentType::LiveLocation: {
-      const auto *m = static_cast<const MessageLiveLocation *>(content);
-      store(m->location, storer);
-      store(m->period, storer);
-      store(m->heading, storer);
-      store(m->proximity_alert_radius, storer);
-      break;
-    }
-    case MessageContentType::Location: {
-      const auto *m = static_cast<const MessageLocation *>(content);
-      store(m->location, storer);
-      break;
-    }
-    case MessageContentType::Photo: {
-      const auto *m = static_cast<const MessagePhoto *>(content);
-      store(m->photo, storer);
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->has_spoiler);
-      END_STORE_FLAGS();
-      store(m->caption, storer);
-      break;
-    }
-    case MessageContentType::Sticker: {
-      const auto *m = static_cast<const MessageSticker *>(content);
-      td->stickers_manager_->store_sticker(m->file_id, false, storer, "MessageSticker");
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->is_premium);
-      END_STORE_FLAGS();
-      break;
-    }
-    case MessageContentType::Text: {
-      const auto *m = static_cast<const MessageText *>(content);
-      bool has_web_page_id = m->web_page_id.is_valid();
-      bool has_web_page_url = !m->web_page_url.empty();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_web_page_id);
-      STORE_FLAG(m->force_small_media);
-      STORE_FLAG(m->force_large_media);
-      STORE_FLAG(has_web_page_url);
-      STORE_FLAG(m->skip_web_page_confirmation);
-      END_STORE_FLAGS();
-      store(m->text, storer);
-      if (has_web_page_id) {
-        store(m->web_page_id, storer);
-      }
-      if (has_web_page_url) {
-        store(m->web_page_url, storer);
-      }
-      break;
-    }
-    case MessageContentType::Unsupported: {
-      const auto *m = static_cast<const MessageUnsupported *>(content);
-      store(m->version, storer);
-      break;
-    }
-    case MessageContentType::Venue: {
-      const auto *m = static_cast<const MessageVenue *>(content);
-      store(m->venue, storer);
-      break;
-    }
-    case MessageContentType::Video: {
-      const auto *m = static_cast<const MessageVideo *>(content);
-      td->videos_manager_->store_video(m->file_id, storer);
-      bool has_alternative_videos = !m->alternative_file_ids.empty();
-      bool has_hls_files = !m->hls_file_ids.empty();
-      bool has_cover = !m->cover.is_empty();
-      bool has_start_timestamp = m->start_timestamp != 0;
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->has_spoiler);
-      STORE_FLAG(has_alternative_videos);
-      STORE_FLAG(has_hls_files);
-      STORE_FLAG(has_cover);
-      STORE_FLAG(has_start_timestamp);
-      END_STORE_FLAGS();
-      store(m->caption, storer);
-      if (has_alternative_videos) {
-        store(static_cast<int32>(m->alternative_file_ids.size()), storer);
-        for (auto file_id : m->alternative_file_ids) {
-          td->videos_manager_->store_video(file_id, storer);
-        }
-      }
-      if (has_hls_files) {
-        store(static_cast<int32>(m->hls_file_ids.size()), storer);
-        for (auto file_id : m->hls_file_ids) {
-          td->documents_manager_->store_document(file_id, storer);
-        }
-      }
-      if (has_cover) {
-        store(m->cover, storer);
-      }
-      if (has_start_timestamp) {
-        store(m->start_timestamp, storer);
-      }
-      break;
-    }
-    case MessageContentType::VideoNote: {
-      const auto *m = static_cast<const MessageVideoNote *>(content);
-      td->video_notes_manager_->store_video_note(m->file_id, storer);
-      store(m->is_viewed, storer);
-      break;
-    }
-    case MessageContentType::VoiceNote: {
-      const auto *m = static_cast<const MessageVoiceNote *>(content);
-      td->voice_notes_manager_->store_voice_note(m->file_id, storer);
-      store(m->caption, storer);
-      store(m->is_listened, storer);
-      break;
-    }
-    case MessageContentType::ChatCreate: {
-      const auto *m = static_cast<const MessageChatCreate *>(content);
-      store(m->title, storer);
-      store(m->participant_user_ids, storer);
-      break;
-    }
-    case MessageContentType::ChatChangeTitle: {
-      const auto *m = static_cast<const MessageChatChangeTitle *>(content);
-      store(m->title, storer);
-      break;
-    }
-    case MessageContentType::ChatChangePhoto: {
-      const auto *m = static_cast<const MessageChatChangePhoto *>(content);
-      store(m->photo, storer);
-      break;
-    }
-    case MessageContentType::ChatDeletePhoto:
-      break;
-    case MessageContentType::ChatDeleteHistory:
-      break;
-    case MessageContentType::ChatAddUsers: {
-      const auto *m = static_cast<const MessageChatAddUsers *>(content);
-      store(m->user_ids, storer);
-      break;
-    }
-    case MessageContentType::ChatJoinedByLink: {
-      auto m = static_cast<const MessageChatJoinedByLink *>(content);
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->is_approved);
-      END_STORE_FLAGS();
-      break;
-    }
-    case MessageContentType::ChatDeleteUser: {
-      const auto *m = static_cast<const MessageChatDeleteUser *>(content);
-      store(m->user_id, storer);
-      break;
-    }
-    case MessageContentType::ChatMigrateTo: {
-      const auto *m = static_cast<const MessageChatMigrateTo *>(content);
-      store(m->migrated_to_channel_id, storer);
-      break;
-    }
-    case MessageContentType::ChannelCreate: {
-      const auto *m = static_cast<const MessageChannelCreate *>(content);
-      store(m->title, storer);
-      break;
-    }
-    case MessageContentType::ChannelMigrateFrom: {
-      const auto *m = static_cast<const MessageChannelMigrateFrom *>(content);
-      store(m->title, storer);
-      store(m->migrated_from_chat_id, storer);
-      break;
-    }
-    case MessageContentType::PinMessage: {
-      const auto *m = static_cast<const MessagePinMessage *>(content);
-      store(m->message_id, storer);
-      break;
-    }
-    case MessageContentType::GameScore: {
-      const auto *m = static_cast<const MessageGameScore *>(content);
-      store(m->game_message_id, storer);
-      store(m->game_id, storer);
-      store(m->score, storer);
-      break;
-    }
-    case MessageContentType::ScreenshotTaken:
-      break;
-    case MessageContentType::ChatSetTtl: {
-      const auto *m = static_cast<const MessageChatSetTtl *>(content);
-      bool has_from_user_id = m->from_user_id.is_valid();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_from_user_id);
-      END_STORE_FLAGS();
-      store(m->ttl, storer);
-      if (has_from_user_id) {
-        store(m->from_user_id, storer);
-      }
-      break;
-    }
-    case MessageContentType::Call: {
-      const auto *m = static_cast<const MessageCall *>(content);
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->is_video);
-      END_STORE_FLAGS();
-      store(m->call_id, storer);
-      store(m->duration, storer);
-      store(m->discard_reason.type_, storer);
-      break;
-    }
-    case MessageContentType::PaymentSuccessful: {
-      const auto *m = static_cast<const MessagePaymentSuccessful *>(content);
-      bool has_payload = !m->invoice_payload.empty();
-      bool has_shipping_option_id = !m->shipping_option_id.empty();
-      bool has_order_info = m->order_info != nullptr;
-      bool has_telegram_payment_charge_id = !m->telegram_payment_charge_id.empty();
-      bool has_provider_payment_charge_id = !m->provider_payment_charge_id.empty();
-      bool has_invoice_message_id = m->invoice_message_id.is_valid();
-      bool is_correctly_stored = true;
-      bool has_invoice_dialog_id = m->invoice_dialog_id.is_valid();
-      bool has_subscription_until_date = m->subscription_until_date != 0;
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_payload);
-      STORE_FLAG(has_shipping_option_id);
-      STORE_FLAG(has_order_info);
-      STORE_FLAG(has_telegram_payment_charge_id);
-      STORE_FLAG(has_provider_payment_charge_id);
-      STORE_FLAG(has_invoice_message_id);
-      STORE_FLAG(is_correctly_stored);
-      STORE_FLAG(has_invoice_dialog_id);
-      STORE_FLAG(m->is_recurring);
-      STORE_FLAG(m->is_first_recurring);
-      STORE_FLAG(has_subscription_until_date);
-      END_STORE_FLAGS();
-      store(m->currency, storer);
-      store(m->total_amount, storer);
-      if (has_payload) {
-        store(m->invoice_payload, storer);
-      }
-      if (has_shipping_option_id) {
-        store(m->shipping_option_id, storer);
-      }
-      if (has_order_info) {
-        store(m->order_info, storer);
-      }
-      if (has_telegram_payment_charge_id) {
-        store(m->telegram_payment_charge_id, storer);
-      }
-      if (has_provider_payment_charge_id) {
-        store(m->provider_payment_charge_id, storer);
-      }
-      if (has_invoice_message_id) {
-        store(m->invoice_message_id, storer);
-      }
-      if (has_invoice_dialog_id) {
-        store(m->invoice_dialog_id, storer);
-      }
-      if (has_subscription_until_date) {
-        store(m->subscription_until_date, storer);
-      }
-      break;
-    }
-    case MessageContentType::ContactRegistered:
-      break;
-    case MessageContentType::ExpiredPhoto:
-      break;
-    case MessageContentType::ExpiredVideo:
-      break;
-    case MessageContentType::CustomServiceAction: {
-      const auto *m = static_cast<const MessageCustomServiceAction *>(content);
-      store(m->message, storer);
-      break;
-    }
-    case MessageContentType::WebsiteConnected: {
-      const auto *m = static_cast<const MessageWebsiteConnected *>(content);
-      store(m->domain_name, storer);
-      break;
-    }
-    case MessageContentType::PassportDataSent: {
-      const auto *m = static_cast<const MessagePassportDataSent *>(content);
-      store(m->types, storer);
-      break;
-    }
-    case MessageContentType::PassportDataReceived: {
-      const auto *m = static_cast<const MessagePassportDataReceived *>(content);
-      store(m->values, storer);
-      store(m->credentials, storer);
-      break;
-    }
-    case MessageContentType::Poll: {
-      const auto *m = static_cast<const MessagePoll *>(content);
-      store(m->poll_id, storer);
-      break;
-    }
-    case MessageContentType::Dice: {
-      const auto *m = static_cast<const MessageDice *>(content);
-      store(m->emoji, storer);
-      store(m->dice_value, storer);
-      break;
-    }
-    case MessageContentType::ProximityAlertTriggered: {
-      const auto *m = static_cast<const MessageProximityAlertTriggered *>(content);
-      store(m->traveler_dialog_id, storer);
-      store(m->watcher_dialog_id, storer);
-      store(m->distance, storer);
-      break;
-    }
-    case MessageContentType::GroupCall: {
-      const auto *m = static_cast<const MessageGroupCall *>(content);
-      bool has_duration = m->duration >= 0;
-      bool has_schedule_date = m->schedule_date > 0;
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_duration);
-      STORE_FLAG(has_schedule_date);
-      END_STORE_FLAGS();
-      store(m->input_group_call_id, storer);
-      if (has_duration) {
-        store(m->duration, storer);
-      }
-      if (has_schedule_date) {
-        store(m->schedule_date, storer);
-      }
-      break;
-    }
-    case MessageContentType::InviteToGroupCall: {
-      const auto *m = static_cast<const MessageInviteToGroupCall *>(content);
-      store(m->input_group_call_id, storer);
-      store(m->user_ids, storer);
-      break;
-    }
-    case MessageContentType::ChatSetTheme: {
-      const auto *m = static_cast<const MessageChatSetTheme *>(content);
-      store(m->emoji, storer);
-      break;
-    }
-    case MessageContentType::WebViewDataSent: {
-      const auto *m = static_cast<const MessageWebViewDataSent *>(content);
-      store(m->button_text, storer);
-      break;
-    }
-    case MessageContentType::WebViewDataReceived: {
-      const auto *m = static_cast<const MessageWebViewDataReceived *>(content);
-      store(m->button_text, storer);
-      store(m->data, storer);
-      break;
-    }
-    case MessageContentType::GiftPremium: {
-      const auto *m = static_cast<const MessageGiftPremium *>(content);
-      bool has_crypto_amount = !m->crypto_currency.empty();
-      bool has_text = !m->text.text.empty();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_crypto_amount);
-      STORE_FLAG(has_text);
-      END_STORE_FLAGS();
-      store(m->currency, storer);
-      store(m->amount, storer);
-      store(m->months, storer);
-      if (has_crypto_amount) {
-        store(m->crypto_currency, storer);
-        store(m->crypto_amount, storer);
-      }
-      if (has_text) {
-        store(m->text, storer);
-      }
-      break;
-    }
-    case MessageContentType::TopicCreate: {
-      const auto *m = static_cast<const MessageTopicCreate *>(content);
-      store(m->title, storer);
-      store(m->icon, storer);
-      break;
-    }
-    case MessageContentType::TopicEdit: {
-      const auto *m = static_cast<const MessageTopicEdit *>(content);
-      store(m->edited_data, storer);
-      break;
-    }
-    case MessageContentType::SuggestProfilePhoto: {
-      const auto *m = static_cast<const MessageSuggestProfilePhoto *>(content);
-      store(m->photo, storer);
-      break;
-    }
-    case MessageContentType::WriteAccessAllowed:
-      break;
-    case MessageContentType::RequestedDialog: {
-      const auto *m = static_cast<const MessageRequestedDialog *>(content);
-      bool has_one_shared_dialog = m->shared_dialog_ids.size() == 1;
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_one_shared_dialog);
-      END_STORE_FLAGS();
-      if (has_one_shared_dialog) {
-        store(m->shared_dialog_ids[0], storer);
-      } else {
-        store(m->shared_dialog_ids, storer);
-      }
-      store(m->button_id, storer);
-      break;
-    }
-    case MessageContentType::WebViewWriteAccessAllowed: {
-      const auto *m = static_cast<const MessageWebViewWriteAccessAllowed *>(content);
-      store(m->web_app, storer);
-      break;
-    }
-    case MessageContentType::SetBackground: {
-      const auto *m = static_cast<const MessageSetBackground *>(content);
-      bool has_message_id = m->old_message_id.is_valid();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_message_id);
-      STORE_FLAG(m->for_both);
-      END_STORE_FLAGS();
-      if (has_message_id) {
-        store(m->old_message_id, storer);
-      }
-      store(m->background_info, storer);
-      break;
-    }
-    case MessageContentType::Story: {
-      const auto *m = static_cast<const MessageStory *>(content);
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->via_mention);
-      END_STORE_FLAGS();
-      store(m->story_full_id, storer);
-      break;
-    }
-    case MessageContentType::WriteAccessAllowedByRequest:
-      break;
-    case MessageContentType::GiftCode: {
-      const auto *m = static_cast<const MessageGiftCode *>(content);
-      bool has_creator_dialog_id = m->creator_dialog_id.is_valid();
-      bool has_currency = !m->currency.empty();
-      bool has_amount = m->amount > 0;
-      bool has_crypto_currency = !m->crypto_currency.empty();
-      bool has_crypto_amount = m->crypto_amount > 0;
-      bool has_text = !m->text.text.empty();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->via_giveaway);
-      STORE_FLAG(has_creator_dialog_id);
-      STORE_FLAG(m->is_unclaimed);
-      STORE_FLAG(has_currency);
-      STORE_FLAG(has_amount);
-      STORE_FLAG(has_crypto_currency);
-      STORE_FLAG(has_crypto_amount);
-      STORE_FLAG(has_text);
-      END_STORE_FLAGS();
-      if (has_creator_dialog_id) {
-        store(m->creator_dialog_id, storer);
-      }
-      store(m->months, storer);
-      store(m->code, storer);
-      if (has_currency) {
-        store(m->currency, storer);
-      }
-      if (has_amount) {
-        store(m->amount, storer);
-      }
-      if (has_crypto_currency) {
-        store(m->crypto_currency, storer);
-      }
-      if (has_crypto_amount) {
-        store(m->crypto_amount, storer);
-      }
-      if (has_text) {
-        store(m->text, storer);
-      }
-      break;
-    }
-    case MessageContentType::Giveaway: {
-      const auto *m = static_cast<const MessageGiveaway *>(content);
-      bool has_star_count = m->star_count != 0;
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_star_count);
-      END_STORE_FLAGS();
-      store(m->giveaway_parameters, storer);
-      store(m->quantity, storer);
-      store(m->months, storer);
-      if (has_star_count) {
-        store(m->star_count, storer);
-      }
-      break;
-    }
-    case MessageContentType::GiveawayLaunch: {
-      const auto *m = static_cast<const MessageGiveawayLaunch *>(content);
-      bool has_star_count = m->star_count != 0;
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_star_count);
-      END_STORE_FLAGS();
-      if (has_star_count) {
-        store(m->star_count, storer);
-      }
-      break;
-    }
-    case MessageContentType::GiveawayResults: {
-      const auto *m = static_cast<const MessageGiveawayResults *>(content);
-      bool has_winner_count = m->winner_count != 0;
-      bool has_unclaimed_count = m->unclaimed_count != 0;
-      bool has_giveaway_message_id = m->giveaway_message_id.is_valid();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_winner_count);
-      STORE_FLAG(has_unclaimed_count);
-      STORE_FLAG(has_giveaway_message_id);
-      STORE_FLAG(m->is_star_giveaway);
-      END_STORE_FLAGS();
-      if (has_winner_count) {
-        store(m->winner_count, storer);
-      }
-      if (has_unclaimed_count) {
-        store(m->unclaimed_count, storer);
-      }
-      if (has_giveaway_message_id) {
-        store(m->giveaway_message_id, storer);
-      }
-      break;
-    }
-    case MessageContentType::GiveawayWinners: {
-      const auto *m = static_cast<const MessageGiveawayWinners *>(content);
-      bool has_giveaway_message_id = m->giveaway_message_id.is_valid();
-      bool has_boosted_channel_id = m->boosted_channel_id.is_valid();
-      bool has_additional_dialog_count = m->additional_dialog_count != 0;
-      bool has_month_count = m->month_count != 0;
-      bool has_prize_description = !m->prize_description.empty();
-      bool has_winners_selection_date = m->winners_selection_date != 0;
-      bool has_winner_count = m->winner_count != 0;
-      bool has_unclaimed_count = m->unclaimed_count != 0;
-      bool has_winner_user_ids = !m->winner_user_ids.empty();
-      bool has_star_count = m->star_count != 0;
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->only_new_subscribers);
-      STORE_FLAG(m->was_refunded);
-      STORE_FLAG(has_giveaway_message_id);
-      STORE_FLAG(has_boosted_channel_id);
-      STORE_FLAG(has_additional_dialog_count);
-      STORE_FLAG(has_month_count);
-      STORE_FLAG(has_prize_description);
-      STORE_FLAG(has_winners_selection_date);
-      STORE_FLAG(has_winner_count);
-      STORE_FLAG(has_unclaimed_count);
-      STORE_FLAG(has_winner_user_ids);
-      STORE_FLAG(has_star_count);
-      END_STORE_FLAGS();
-      if (has_giveaway_message_id) {
-        store(m->giveaway_message_id, storer);
-      }
-      if (has_boosted_channel_id) {
-        store(m->boosted_channel_id, storer);
-      }
-      if (has_additional_dialog_count) {
-        store(m->additional_dialog_count, storer);
-      }
-      if (has_month_count) {
-        store(m->month_count, storer);
-      }
-      if (has_prize_description) {
-        store(m->prize_description, storer);
-      }
-      if (has_winners_selection_date) {
-        store(m->winners_selection_date, storer);
-      }
-      if (has_winner_count) {
-        store(m->winner_count, storer);
-      }
-      if (has_unclaimed_count) {
-        store(m->unclaimed_count, storer);
-      }
-      if (has_winner_user_ids) {
-        store(m->winner_user_ids, storer);
-      }
-      if (has_star_count) {
-        store(m->star_count, storer);
-      }
-      break;
-    }
-    case MessageContentType::ExpiredVideoNote:
-      break;
-    case MessageContentType::ExpiredVoiceNote:
-      break;
-    case MessageContentType::BoostApply: {
-      const auto *m = static_cast<const MessageBoostApply *>(content);
-      BEGIN_STORE_FLAGS();
-      END_STORE_FLAGS();
-      store(m->boost_count, storer);
-      break;
-    }
-    case MessageContentType::DialogShared: {
-      const auto *m = static_cast<const MessageDialogShared *>(content);
-      BEGIN_STORE_FLAGS();
-      END_STORE_FLAGS();
-      store(m->shared_dialogs, storer);
-      store(m->button_id, storer);
-      break;
-    }
-    case MessageContentType::PaidMedia: {
-      const auto *m = static_cast<const MessagePaidMedia *>(content);
-      bool has_caption = !m->caption.text.empty();
-      bool has_payload = !m->payload.empty();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_caption);
-      STORE_FLAG(has_payload);
-      END_STORE_FLAGS();
-      store(m->media, storer);
-      if (has_caption) {
-        store(m->caption, storer);
-      }
-      store(m->star_count, storer);
-      if (has_payload) {
-        store(m->payload, storer);
-      }
-      break;
-    }
-    case MessageContentType::PaymentRefunded: {
-      const auto *m = static_cast<const MessagePaymentRefunded *>(content);
-      bool has_invoice_payload = !m->invoice_payload.empty();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_invoice_payload);
-      END_STORE_FLAGS();
-      store(m->dialog_id, storer);
-      store(m->currency, storer);
-      store(m->total_amount, storer);
-      if (has_invoice_payload) {
-        store(m->invoice_payload, storer);
-      }
-      store(m->telegram_payment_charge_id, storer);
-      store(m->provider_payment_charge_id, storer);
-      break;
-    }
-    case MessageContentType::GiftStars: {
-      const auto *m = static_cast<const MessageGiftStars *>(content);
-      bool has_crypto_amount = !m->crypto_currency.empty();
-      bool has_transaction_id = !m->transaction_id.empty();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_crypto_amount);
-      STORE_FLAG(has_transaction_id);
-      END_STORE_FLAGS();
-      store(m->currency, storer);
-      store(m->amount, storer);
-      store(m->star_count, storer);
-      if (has_crypto_amount) {
-        store(m->crypto_currency, storer);
-        store(m->crypto_amount, storer);
-      }
-      if (has_transaction_id) {
-        store(m->transaction_id, storer);
-      }
-      break;
-    }
-    case MessageContentType::PrizeStars: {
-      const auto *m = static_cast<const MessagePrizeStars *>(content);
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->is_unclaimed);
-      END_STORE_FLAGS();
-      store(m->star_count, storer);
-      store(m->transaction_id, storer);
-      store(m->boosted_dialog_id, storer);
-      store(m->giveaway_message_id, storer);
-      break;
-    }
-    case MessageContentType::StarGift: {
-      const auto *m = static_cast<const MessageStarGift *>(content);
-      bool has_text = !m->text.text.empty();
-      bool has_upgrade_star_count = m->upgrade_star_count != 0;
-      bool has_upgrade_message_id = m->upgrade_message_id.is_valid();
-      bool has_owner_dialog_id = m->owner_dialog_id.is_valid();
-      bool has_saved_id = m->saved_id != 0;
-      bool has_sender_dialog_id = m->sender_dialog_id.is_valid();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(m->name_hidden);
-      STORE_FLAG(m->is_saved);
-      STORE_FLAG(m->was_converted);
-      STORE_FLAG(has_text);
-      STORE_FLAG(m->was_upgraded);
-      STORE_FLAG(m->can_upgrade);
-      STORE_FLAG(has_upgrade_star_count);
-      STORE_FLAG(m->was_refunded);
-      STORE_FLAG(has_upgrade_message_id);
-      STORE_FLAG(has_owner_dialog_id);
-      STORE_FLAG(has_saved_id);
-      STORE_FLAG(has_sender_dialog_id);
-      END_STORE_FLAGS();
-      store(m->star_gift, storer);
-      if (has_text) {
-        store(m->text, storer);
-      }
-      store(m->convert_star_count, storer);
-      if (has_upgrade_star_count) {
-        store(m->upgrade_star_count, storer);
-      }
-      if (has_upgrade_message_id) {
-        store(m->upgrade_message_id, storer);
-      }
-      if (has_owner_dialog_id) {
-        store(m->owner_dialog_id, storer);
-      }
-      if (has_saved_id) {
-        store(m->saved_id, storer);
-      }
-      if (has_sender_dialog_id) {
-        store(m->sender_dialog_id, storer);
-      }
-      break;
-    }
-    case MessageContentType::StarGiftUnique: {
-      const auto *m = static_cast<const MessageStarGiftUnique *>(content);
-      bool has_transfer_star_count = m->transfer_star_count != 0;
-      bool has_can_export_at = m->can_export_at != 0;
-      bool has_owner_dialog_id = m->owner_dialog_id.is_valid();
-      bool has_saved_id = m->saved_id != 0;
-      bool has_sender_dialog_id = m->sender_dialog_id.is_valid();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_transfer_star_count);
-      STORE_FLAG(has_can_export_at);
-      STORE_FLAG(m->is_saved);
-      STORE_FLAG(m->is_upgrade);
-      STORE_FLAG(m->was_transferred);
-      STORE_FLAG(m->can_transfer);
-      STORE_FLAG(m->was_refunded);
-      STORE_FLAG(has_owner_dialog_id);
-      STORE_FLAG(has_saved_id);
-      STORE_FLAG(has_sender_dialog_id);
-      END_STORE_FLAGS();
-      store(m->star_gift, storer);
-      if (has_transfer_star_count) {
-        store(m->transfer_star_count, storer);
-      }
-      if (has_can_export_at) {
-        store(m->can_export_at, storer);
-      }
-      if (has_owner_dialog_id) {
-        store(m->owner_dialog_id, storer);
-      }
-      if (has_saved_id) {
-        store(m->saved_id, storer);
-      }
-      if (has_sender_dialog_id) {
-        store(m->sender_dialog_id, storer);
-      }
-      break;
-    }
-    case MessageContentType::PaidMessagesRefunded: {
-      const auto *m = static_cast<const MessagePaidMessagesRefunded *>(content);
-      BEGIN_STORE_FLAGS();
-      END_STORE_FLAGS();
-      store(m->message_count, storer);
-      store(m->star_count, storer);
-      break;
-    }
-    case MessageContentType::PaidMessagesPrice: {
-      const auto *m = static_cast<const MessagePaidMessagesPrice *>(content);
-      BEGIN_STORE_FLAGS();
-      END_STORE_FLAGS();
-      store(m->star_count, storer);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-template <class ParserT>
-static void parse_caption(FormattedText &caption, ParserT &parser) {
-  parse(caption.text, parser);
-  if (parser.version() >= static_cast<int32>(Version::AddCaptionEntities)) {
-    parse(caption.entities, parser);
-    remove_empty_entities(caption.entities);
-  } else {
-    if (!check_utf8(caption.text)) {
-      caption.text.clear();
-    }
-    caption.entities = find_entities(caption.text, false, true);
-  }
-}
-
-template <class ParserT>
-static void parse(unique_ptr<MessageContent> &content, ParserT &parser) {
-  Td *td = parser.context()->td().get_actor_unsafe();
-  CHECK(td != nullptr);
-
-  MessageContentType content_type;
-  parse(content_type, parser);
-
-  bool is_bad = false;
-  switch (content_type) {
-    case MessageContentType::Animation: {
-      auto m = make_unique<MessageAnimation>();
-      m->file_id = td->animations_manager_->parse_animation(parser);
-      if (parser.version() >= static_cast<int32>(Version::AddMessageMediaSpoiler)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(m->has_spoiler);
-        END_PARSE_FLAGS();
-      }
-      parse_caption(m->caption, parser);
-      is_bad = !m->file_id.is_valid();
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Audio: {
-      auto m = make_unique<MessageAudio>();
-      m->file_id = td->audios_manager_->parse_audio(parser);
-      parse_caption(m->caption, parser);
-      bool legacy_is_listened;
-      parse(legacy_is_listened, parser);
-      is_bad = !m->file_id.is_valid();
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Contact: {
-      auto m = make_unique<MessageContact>();
-      parse(m->contact, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Document: {
-      auto m = make_unique<MessageDocument>();
-      m->file_id = td->documents_manager_->parse_document(parser);
-      parse_caption(m->caption, parser);
-      is_bad = !m->file_id.is_valid();
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Game: {
-      auto m = make_unique<MessageGame>();
-      parse(m->game, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Invoice: {
-      auto m = make_unique<MessageInvoice>();
-      parse(m->input_invoice, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::LiveLocation: {
-      auto m = make_unique<MessageLiveLocation>();
-      parse(m->location, parser);
-      parse(m->period, parser);
-      if (parser.version() >= static_cast<int32>(Version::AddLiveLocationHeading)) {
-        parse(m->heading, parser);
-      } else {
-        m->heading = 0;
-      }
-      if (parser.version() >= static_cast<int32>(Version::AddLiveLocationProximityAlertDistance)) {
-        parse(m->proximity_alert_radius, parser);
-      } else {
-        m->proximity_alert_radius = 0;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Location: {
-      auto m = make_unique<MessageLocation>();
-      parse(m->location, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Photo: {
-      auto m = make_unique<MessagePhoto>();
-      parse(m->photo, parser);
-      is_bad |= m->photo.is_bad();
-      if (parser.version() >= static_cast<int32>(Version::AddMessageMediaSpoiler)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(m->has_spoiler);
-        END_PARSE_FLAGS();
-      }
-      parse_caption(m->caption, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Sticker: {
-      auto m = make_unique<MessageSticker>();
-      m->file_id = td->stickers_manager_->parse_sticker(false, parser);
-      if (parser.version() >= static_cast<int32>(Version::AddMessageStickerFlags)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(m->is_premium);
-        END_PARSE_FLAGS();
-      }
-      is_bad = !m->file_id.is_valid();
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Text: {
-      auto m = make_unique<MessageText>();
-      bool has_web_page_id = true;
-      bool has_web_page_url = false;
-      if (parser.version() >= static_cast<int32>(Version::AddMessageTextFlags)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(has_web_page_id);
-        PARSE_FLAG(m->force_small_media);
-        PARSE_FLAG(m->force_large_media);
-        PARSE_FLAG(has_web_page_url);
-        PARSE_FLAG(m->skip_web_page_confirmation);
-        END_PARSE_FLAGS();
-      }
-      parse(m->text, parser);
-      if (has_web_page_id) {
-        parse(m->web_page_id, parser);
-      }
-      if (has_web_page_url) {
-        parse(m->web_page_url, parser);
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Unsupported: {
-      auto m = make_unique<MessageUnsupported>();
-      if (parser.version() >= static_cast<int32>(Version::AddMessageUnsupportedVersion)) {
-        parse(m->version, parser);
-      } else {
-        m->version = 0;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Venue: {
-      auto m = make_unique<MessageVenue>();
-      parse(m->venue, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Video: {
-      auto m = make_unique<MessageVideo>();
-      m->file_id = td->videos_manager_->parse_video(parser);
-      bool has_alternative_videos = false;
-      bool has_hls_files = false;
-      bool has_cover = false;
-      bool has_start_timestamp = false;
-      if (parser.version() >= static_cast<int32>(Version::AddMessageMediaSpoiler)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(m->has_spoiler);
-        PARSE_FLAG(has_alternative_videos);
-        PARSE_FLAG(has_hls_files);
-        PARSE_FLAG(has_cover);
-        PARSE_FLAG(has_start_timestamp);
-        END_PARSE_FLAGS();
-      }
-      parse_caption(m->caption, parser);
-      if (has_alternative_videos) {
-        int32 video_count = 0;
-        parse(video_count, parser);
-        for (int32 i = 0; i < video_count; i++) {
-          auto file_id = td->videos_manager_->parse_video(parser);
-          if (!file_id.is_valid()) {
-            is_bad = true;
-          } else {
-            m->alternative_file_ids.push_back(file_id);
-          }
-        }
-      }
-      if (has_hls_files) {
-        int32 file_count = 0;
-        parse(file_count, parser);
-        for (int32 i = 0; i < file_count; i++) {
-          auto file_id = td->documents_manager_->parse_document(parser);
-          if (!file_id.is_valid()) {
-            is_bad = true;
-          } else {
-            m->hls_file_ids.push_back(file_id);
-          }
-        }
-      }
-      if (has_cover) {
-        parse(m->cover, parser);
-      }
-      if (has_start_timestamp) {
-        parse(m->start_timestamp, parser);
-      }
-
-      if (!m->file_id.is_valid()) {
-        is_bad = true;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::VideoNote: {
-      auto m = make_unique<MessageVideoNote>();
-      m->file_id = td->video_notes_manager_->parse_video_note(parser);
-      parse(m->is_viewed, parser);
-      is_bad = !m->file_id.is_valid();
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::VoiceNote: {
-      auto m = make_unique<MessageVoiceNote>();
-      m->file_id = td->voice_notes_manager_->parse_voice_note(parser);
-      parse_caption(m->caption, parser);
-      parse(m->is_listened, parser);
-      is_bad = !m->file_id.is_valid();
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChatCreate: {
-      auto m = make_unique<MessageChatCreate>();
-      parse(m->title, parser);
-      parse(m->participant_user_ids, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChatChangeTitle: {
-      auto m = make_unique<MessageChatChangeTitle>();
-      parse(m->title, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChatChangePhoto: {
-      auto m = make_unique<MessageChatChangePhoto>();
-      parse(m->photo, parser);
-      if (m->photo.is_empty()) {
-        is_bad = true;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChatDeletePhoto:
-      content = make_unique<MessageChatDeletePhoto>();
-      break;
-    case MessageContentType::ChatDeleteHistory:
-      content = make_unique<MessageChatDeleteHistory>();
-      break;
-    case MessageContentType::ChatAddUsers: {
-      auto m = make_unique<MessageChatAddUsers>();
-      parse(m->user_ids, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChatJoinedByLink: {
-      auto m = make_unique<MessageChatJoinedByLink>();
-      if (parser.version() >= static_cast<int32>(Version::AddInviteLinksRequiringApproval)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(m->is_approved);
-        END_PARSE_FLAGS();
-      } else {
-        m->is_approved = false;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChatDeleteUser: {
-      auto m = make_unique<MessageChatDeleteUser>();
-      parse(m->user_id, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChatMigrateTo: {
-      auto m = make_unique<MessageChatMigrateTo>();
-      parse(m->migrated_to_channel_id, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChannelCreate: {
-      auto m = make_unique<MessageChannelCreate>();
-      parse(m->title, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChannelMigrateFrom: {
-      auto m = make_unique<MessageChannelMigrateFrom>();
-      parse(m->title, parser);
-      parse(m->migrated_from_chat_id, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PinMessage: {
-      auto m = make_unique<MessagePinMessage>();
-      parse(m->message_id, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::GameScore: {
-      auto m = make_unique<MessageGameScore>();
-      parse(m->game_message_id, parser);
-      parse(m->game_id, parser);
-      parse(m->score, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ScreenshotTaken:
-      content = make_unique<MessageScreenshotTaken>();
-      break;
-    case MessageContentType::ChatSetTtl: {
-      auto m = make_unique<MessageChatSetTtl>();
-      bool has_from_user_id = false;
-      if (parser.version() >= static_cast<int32>(Version::AddMessageChatSetTtlFlags)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(has_from_user_id);
-        END_PARSE_FLAGS();
-      }
-      parse(m->ttl, parser);
-      if (has_from_user_id) {
-        parse(m->from_user_id, parser);
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Call: {
-      auto m = make_unique<MessageCall>();
-      if (parser.version() >= static_cast<int32>(Version::AddVideoCallsSupport)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(m->is_video);
-        END_PARSE_FLAGS();
-      } else {
-        m->is_video = false;
-      }
-      parse(m->call_id, parser);
-      parse(m->duration, parser);
-      parse(m->discard_reason.type_, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PaymentSuccessful: {
-      auto m = make_unique<MessagePaymentSuccessful>();
-      bool has_payload;
-      bool has_shipping_option_id;
-      bool has_order_info;
-      bool has_telegram_payment_charge_id;
-      bool has_provider_payment_charge_id;
-      bool has_invoice_message_id;
-      bool is_correctly_stored;
-      bool has_invoice_dialog_id;
-      bool has_subscription_until_date;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_payload);
-      PARSE_FLAG(has_shipping_option_id);
-      PARSE_FLAG(has_order_info);
-      PARSE_FLAG(has_telegram_payment_charge_id);
-      PARSE_FLAG(has_provider_payment_charge_id);
-      PARSE_FLAG(has_invoice_message_id);
-      PARSE_FLAG(is_correctly_stored);
-      PARSE_FLAG(has_invoice_dialog_id);
-      PARSE_FLAG(m->is_recurring);
-      PARSE_FLAG(m->is_first_recurring);
-      PARSE_FLAG(has_subscription_until_date);
-      END_PARSE_FLAGS();
-      parse(m->currency, parser);
-      parse(m->total_amount, parser);
-      if (is_correctly_stored) {
-        if (has_payload) {
-          parse(m->invoice_payload, parser);
-        }
-        if (has_shipping_option_id) {
-          parse(m->shipping_option_id, parser);
-        }
-      } else {
-        if (has_payload) {
-          parse(m->total_amount, parser);
-        }
-        if (has_shipping_option_id) {
-          parse(m->invoice_payload, parser);
-        }
-      }
-      if (has_order_info) {
-        parse(m->order_info, parser);
-      }
-      if (has_telegram_payment_charge_id) {
-        parse(m->telegram_payment_charge_id, parser);
-      }
-      if (has_provider_payment_charge_id) {
-        parse(m->provider_payment_charge_id, parser);
-      }
-      if (has_invoice_message_id) {
-        parse(m->invoice_message_id, parser);
-      }
-      if (has_invoice_dialog_id) {
-        parse(m->invoice_dialog_id, parser);
-      }
-      if (has_subscription_until_date) {
-        parse(m->subscription_until_date, parser);
-      }
-      if (is_correctly_stored) {
-        content = std::move(m);
-      } else {
-        content = make_unique<MessageUnsupported>(0);
-      }
-      break;
-    }
-    case MessageContentType::ContactRegistered:
-      content = make_unique<MessageContactRegistered>();
-      break;
-    case MessageContentType::ExpiredPhoto:
-      content = make_unique<MessageExpiredPhoto>();
-      break;
-    case MessageContentType::ExpiredVideo:
-      content = make_unique<MessageExpiredVideo>();
-      break;
-    case MessageContentType::CustomServiceAction: {
-      auto m = make_unique<MessageCustomServiceAction>();
-      parse(m->message, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::WebsiteConnected: {
-      auto m = make_unique<MessageWebsiteConnected>();
-      parse(m->domain_name, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PassportDataSent: {
-      auto m = make_unique<MessagePassportDataSent>();
-      parse(m->types, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PassportDataReceived: {
-      auto m = make_unique<MessagePassportDataReceived>();
-      parse(m->values, parser);
-      parse(m->credentials, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Poll: {
-      auto m = make_unique<MessagePoll>();
-      parse(m->poll_id, parser);
-      is_bad = !m->poll_id.is_valid();
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Dice: {
-      auto m = make_unique<MessageDice>();
-      if (parser.version() >= static_cast<int32>(Version::AddDiceEmoji)) {
-        parse(m->emoji, parser);
-        remove_emoji_modifiers_in_place(m->emoji);
-      } else {
-        m->emoji = MessageDice::DEFAULT_EMOJI;
-      }
-      parse(m->dice_value, parser);
-      is_bad = !m->is_valid();
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ProximityAlertTriggered: {
-      auto m = make_unique<MessageProximityAlertTriggered>();
-      parse(m->traveler_dialog_id, parser);
-      parse(m->watcher_dialog_id, parser);
-      parse(m->distance, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::GroupCall: {
-      auto m = make_unique<MessageGroupCall>();
-      bool has_duration;
-      bool has_schedule_date;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_duration);
-      PARSE_FLAG(has_schedule_date);
-      END_PARSE_FLAGS();
-      parse(m->input_group_call_id, parser);
-      if (has_duration) {
-        parse(m->duration, parser);
-      }
-      if (has_schedule_date) {
-        parse(m->schedule_date, parser);
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::InviteToGroupCall: {
-      auto m = make_unique<MessageInviteToGroupCall>();
-      parse(m->input_group_call_id, parser);
-      parse(m->user_ids, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ChatSetTheme: {
-      auto m = make_unique<MessageChatSetTheme>();
-      parse(m->emoji, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::WebViewDataSent: {
-      auto m = make_unique<MessageWebViewDataSent>();
-      parse(m->button_text, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::WebViewDataReceived: {
-      auto m = make_unique<MessageWebViewDataReceived>();
-      parse(m->button_text, parser);
-      parse(m->data, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::GiftPremium: {
-      auto m = make_unique<MessageGiftPremium>();
-      bool has_crypto_amount;
-      bool has_text;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_crypto_amount);
-      PARSE_FLAG(has_text);
-      END_PARSE_FLAGS();
-      parse(m->currency, parser);
-      parse(m->amount, parser);
-      parse(m->months, parser);
-      if (has_crypto_amount) {
-        parse(m->crypto_currency, parser);
-        parse(m->crypto_amount, parser);
-      }
-      if (has_text) {
-        parse(m->text, parser);
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::TopicCreate: {
-      auto m = make_unique<MessageTopicCreate>();
-      parse(m->title, parser);
-      parse(m->icon, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::TopicEdit: {
-      auto m = make_unique<MessageTopicEdit>();
-      parse(m->edited_data, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::SuggestProfilePhoto: {
-      auto m = make_unique<MessageSuggestProfilePhoto>();
-      parse(m->photo, parser);
-      if (m->photo.is_empty()) {
-        is_bad = true;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::WriteAccessAllowed:
-      content = make_unique<MessageWriteAccessAllowed>();
-      break;
-    case MessageContentType::RequestedDialog: {
-      auto m = make_unique<MessageRequestedDialog>();
-      bool has_one_shared_dialog = true;
-      if (parser.version() >= static_cast<int32>(Version::SupportMultipleSharedUsers)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(has_one_shared_dialog);
-        END_PARSE_FLAGS();
-      }
-      if (has_one_shared_dialog) {
-        DialogId dialog_id;
-        parse(dialog_id, parser);
-        m->shared_dialog_ids = {dialog_id};
-      } else {
-        parse(m->shared_dialog_ids, parser);
-        if (m->shared_dialog_ids.size() > 1) {
-          for (auto dialog_id : m->shared_dialog_ids) {
-            if (dialog_id.get_type() != DialogType::User) {
-              is_bad = true;
-            }
-          }
-        }
-      }
-      if (m->shared_dialog_ids.empty() || !m->shared_dialog_ids[0].is_valid()) {
-        is_bad = true;
-      }
-      parse(m->button_id, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::WebViewWriteAccessAllowed: {
-      auto m = make_unique<MessageWebViewWriteAccessAllowed>();
-      parse(m->web_app, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::SetBackground: {
-      auto m = make_unique<MessageSetBackground>();
-      bool has_message_id;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_message_id);
-      PARSE_FLAG(m->for_both);
-      END_PARSE_FLAGS();
-      if (has_message_id) {
-        parse(m->old_message_id, parser);
-      }
-      parse(m->background_info, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Story: {
-      auto m = make_unique<MessageStory>();
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(m->via_mention);
-      END_PARSE_FLAGS();
-      parse(m->story_full_id, parser);
-      if (!m->story_full_id.is_server()) {
-        is_bad = true;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::WriteAccessAllowedByRequest:
-      content = make_unique<MessageWriteAccessAllowedByRequest>();
-      break;
-    case MessageContentType::GiftCode: {
-      auto m = make_unique<MessageGiftCode>();
-      bool has_creator_dialog_id;
-      bool has_currency;
-      bool has_amount;
-      bool has_crypto_currency;
-      bool has_crypto_amount;
-      bool has_text;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(m->via_giveaway);
-      PARSE_FLAG(has_creator_dialog_id);
-      PARSE_FLAG(m->is_unclaimed);
-      PARSE_FLAG(has_currency);
-      PARSE_FLAG(has_amount);
-      PARSE_FLAG(has_crypto_currency);
-      PARSE_FLAG(has_crypto_amount);
-      PARSE_FLAG(has_text);
-      END_PARSE_FLAGS();
-      if (has_creator_dialog_id) {
-        parse(m->creator_dialog_id, parser);
-      }
-      parse(m->months, parser);
-      parse(m->code, parser);
-      if (has_currency) {
-        parse(m->currency, parser);
-      }
-      if (has_amount) {
-        parse(m->amount, parser);
-      }
-      if (has_crypto_currency) {
-        parse(m->crypto_currency, parser);
-      }
-      if (has_crypto_amount) {
-        parse(m->crypto_amount, parser);
-      }
-      if (has_text) {
-        parse(m->text, parser);
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::Giveaway: {
-      auto m = make_unique<MessageGiveaway>();
-      bool has_star_count;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_star_count);
-      END_PARSE_FLAGS();
-      parse(m->giveaway_parameters, parser);
-      parse(m->quantity, parser);
-      parse(m->months, parser);
-      if (has_star_count) {
-        parse(m->star_count, parser);
-      }
-      if (!m->giveaway_parameters.is_valid()) {
-        is_bad = true;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::GiveawayLaunch: {
-      auto m = make_unique<MessageGiveawayLaunch>();
-      bool has_star_count = false;
-      if (parser.version() >= static_cast<int32>(Version::SupportStarGiveaways)) {
-        BEGIN_PARSE_FLAGS();
-        PARSE_FLAG(has_star_count);
-        END_PARSE_FLAGS();
-      }
-      if (has_star_count) {
-        parse(m->star_count, parser);
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::GiveawayResults: {
-      auto m = make_unique<MessageGiveawayResults>();
-      bool has_winner_count;
-      bool has_unclaimed_count;
-      bool has_giveaway_message_id;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_winner_count);
-      PARSE_FLAG(has_unclaimed_count);
-      PARSE_FLAG(has_giveaway_message_id);
-      PARSE_FLAG(m->is_star_giveaway);
-      END_PARSE_FLAGS();
-      if (has_winner_count) {
-        parse(m->winner_count, parser);
-      }
-      if (has_unclaimed_count) {
-        parse(m->unclaimed_count, parser);
-      }
-      if (has_giveaway_message_id) {
-        parse(m->giveaway_message_id, parser);
-      }
-      if (m->winner_count < 0 || m->unclaimed_count < 0) {
-        is_bad = true;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::GiveawayWinners: {
-      auto m = make_unique<MessageGiveawayWinners>();
-      bool has_giveaway_message_id;
-      bool has_boosted_channel_id;
-      bool has_additional_dialog_count;
-      bool has_month_count;
-      bool has_prize_description;
-      bool has_winners_selection_date;
-      bool has_winner_count;
-      bool has_unclaimed_count;
-      bool has_winner_user_ids;
-      bool has_star_count;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(m->only_new_subscribers);
-      PARSE_FLAG(m->was_refunded);
-      PARSE_FLAG(has_giveaway_message_id);
-      PARSE_FLAG(has_boosted_channel_id);
-      PARSE_FLAG(has_additional_dialog_count);
-      PARSE_FLAG(has_month_count);
-      PARSE_FLAG(has_prize_description);
-      PARSE_FLAG(has_winners_selection_date);
-      PARSE_FLAG(has_winner_count);
-      PARSE_FLAG(has_unclaimed_count);
-      PARSE_FLAG(has_winner_user_ids);
-      PARSE_FLAG(has_star_count);
-      END_PARSE_FLAGS();
-      if (has_giveaway_message_id) {
-        parse(m->giveaway_message_id, parser);
-      }
-      if (has_boosted_channel_id) {
-        parse(m->boosted_channel_id, parser);
-      }
-      if (has_additional_dialog_count) {
-        parse(m->additional_dialog_count, parser);
-      }
-      if (has_month_count) {
-        parse(m->month_count, parser);
-      }
-      if (has_prize_description) {
-        parse(m->prize_description, parser);
-      }
-      if (has_winners_selection_date) {
-        parse(m->winners_selection_date, parser);
-      }
-      if (has_winner_count) {
-        parse(m->winner_count, parser);
-      }
-      if (has_unclaimed_count) {
-        parse(m->unclaimed_count, parser);
-      }
-      if (has_winner_user_ids) {
-        parse(m->winner_user_ids, parser);
-      }
-      if (has_star_count) {
-        parse(m->star_count, parser);
-      }
-      if (m->winner_count < 0 || m->unclaimed_count < 0) {
-        is_bad = true;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::ExpiredVideoNote:
-      content = make_unique<MessageExpiredVideoNote>();
-      break;
-    case MessageContentType::ExpiredVoiceNote:
-      content = make_unique<MessageExpiredVoiceNote>();
-      break;
-    case MessageContentType::BoostApply: {
-      auto m = make_unique<MessageBoostApply>();
-      BEGIN_PARSE_FLAGS();
-      END_PARSE_FLAGS();
-      parse(m->boost_count, parser);
-      if (m->boost_count < 0) {
-        is_bad = true;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::DialogShared: {
-      auto m = make_unique<MessageDialogShared>();
-      BEGIN_PARSE_FLAGS();
-      END_PARSE_FLAGS();
-      parse(m->shared_dialogs, parser);
-      if (m->shared_dialogs.empty() ||
-          any_of(m->shared_dialogs, [](const auto &shared_dialog) { return !shared_dialog.is_valid(); })) {
-        is_bad = true;
-      }
-      parse(m->button_id, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PaidMedia: {
-      auto m = make_unique<MessagePaidMedia>();
-      bool has_caption;
-      bool has_payload;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_caption);
-      PARSE_FLAG(has_payload);
-      END_PARSE_FLAGS();
-      parse(m->media, parser);
-      if (has_caption) {
-        parse(m->caption, parser);
-      }
-      parse(m->star_count, parser);
-      if (has_payload) {
-        parse(m->payload, parser);
-      }
-
-      for (auto &media : m->media) {
-        if (media.is_empty()) {
-          is_bad = true;
-        }
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PaymentRefunded: {
-      auto m = make_unique<MessagePaymentRefunded>();
-      bool has_invoice_payload;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_invoice_payload);
-      END_PARSE_FLAGS();
-      parse(m->dialog_id, parser);
-      parse(m->currency, parser);
-      parse(m->total_amount, parser);
-      if (has_invoice_payload) {
-        parse(m->invoice_payload, parser);
-      }
-      parse(m->telegram_payment_charge_id, parser);
-      parse(m->provider_payment_charge_id, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::GiftStars: {
-      auto m = make_unique<MessageGiftStars>();
-      bool has_crypto_amount;
-      bool has_transaction_id;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_crypto_amount);
-      PARSE_FLAG(has_transaction_id);
-      END_PARSE_FLAGS();
-      parse(m->currency, parser);
-      parse(m->amount, parser);
-      parse(m->star_count, parser);
-      if (has_crypto_amount) {
-        parse(m->crypto_currency, parser);
-        parse(m->crypto_amount, parser);
-      }
-      if (has_transaction_id) {
-        parse(m->transaction_id, parser);
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PrizeStars: {
-      auto m = make_unique<MessagePrizeStars>();
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(m->is_unclaimed);
-      END_PARSE_FLAGS();
-      parse(m->star_count, parser);
-      parse(m->transaction_id, parser);
-      parse(m->boosted_dialog_id, parser);
-      parse(m->giveaway_message_id, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::StarGift: {
-      auto m = make_unique<MessageStarGift>();
-      bool has_text;
-      bool has_upgrade_star_count;
-      bool has_upgrade_message_id;
-      bool has_owner_dialog_id;
-      bool has_saved_id;
-      bool has_sender_dialog_id;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(m->name_hidden);
-      PARSE_FLAG(m->is_saved);
-      PARSE_FLAG(m->was_converted);
-      PARSE_FLAG(has_text);
-      PARSE_FLAG(m->was_upgraded);
-      PARSE_FLAG(m->can_upgrade);
-      PARSE_FLAG(has_upgrade_star_count);
-      PARSE_FLAG(m->was_refunded);
-      PARSE_FLAG(has_upgrade_message_id);
-      PARSE_FLAG(has_owner_dialog_id);
-      PARSE_FLAG(has_saved_id);
-      PARSE_FLAG(has_sender_dialog_id);
-      END_PARSE_FLAGS();
-      parse(m->star_gift, parser);
-      if (has_text) {
-        parse(m->text, parser);
-      }
-      parse(m->convert_star_count, parser);
-      if (has_upgrade_star_count) {
-        parse(m->upgrade_star_count, parser);
-      }
-      if (has_upgrade_message_id) {
-        parse(m->upgrade_message_id, parser);
-      }
-      if (has_owner_dialog_id) {
-        parse(m->owner_dialog_id, parser);
-      }
-      if (has_saved_id) {
-        parse(m->saved_id, parser);
-      }
-      if (has_sender_dialog_id) {
-        parse(m->sender_dialog_id, parser);
-      }
-      if (!m->star_gift.is_valid() || m->star_gift.is_unique()) {
-        is_bad = true;
-        break;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::StarGiftUnique: {
-      auto m = make_unique<MessageStarGiftUnique>();
-      bool has_transfer_star_count;
-      bool has_can_export_at;
-      bool has_owner_dialog_id;
-      bool has_saved_id;
-      bool has_sender_dialog_id;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_transfer_star_count);
-      PARSE_FLAG(has_can_export_at);
-      PARSE_FLAG(m->is_saved);
-      PARSE_FLAG(m->is_upgrade);
-      PARSE_FLAG(m->was_transferred);
-      PARSE_FLAG(m->can_transfer);
-      PARSE_FLAG(m->was_refunded);
-      PARSE_FLAG(has_owner_dialog_id);
-      PARSE_FLAG(has_saved_id);
-      PARSE_FLAG(has_sender_dialog_id);
-      END_PARSE_FLAGS();
-      parse(m->star_gift, parser);
-      if (has_transfer_star_count) {
-        parse(m->transfer_star_count, parser);
-      }
-      if (has_can_export_at) {
-        parse(m->can_export_at, parser);
-      }
-      if (has_owner_dialog_id) {
-        parse(m->owner_dialog_id, parser);
-      }
-      if (has_saved_id) {
-        parse(m->saved_id, parser);
-      }
-      if (has_sender_dialog_id) {
-        parse(m->sender_dialog_id, parser);
-      }
-      if (!m->star_gift.is_valid() || m->star_gift.is_unique() == m->was_refunded) {
-        is_bad = true;
-        break;
-      }
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PaidMessagesRefunded: {
-      auto m = make_unique<MessagePaidMessagesRefunded>();
-      BEGIN_PARSE_FLAGS();
-      END_PARSE_FLAGS();
-      parse(m->message_count, parser);
-      parse(m->star_count, parser);
-      content = std::move(m);
-      break;
-    }
-    case MessageContentType::PaidMessagesPrice: {
-      auto m = make_unique<MessagePaidMessagesPrice>();
-      BEGIN_PARSE_FLAGS();
-      END_PARSE_FLAGS();
-      parse(m->star_count, parser);
-      content = std::move(m);
-      break;
-    }
-
-    default:
-      is_bad = true;
-  }
-  if (is_bad) {
-    LOG(ERROR) << "Load a message with an invalid content of type " << content_type;
-    content = make_unique<MessageUnsupported>(0);
-  }
-}
-
-void store_message_content(const MessageContent *content, LogEventStorerCalcLength &storer) {
-  store(content, storer);
-}
-
-void store_message_content(const MessageContent *content, LogEventStorerUnsafe &storer) {
-  store(content, storer);
-}
-
-void parse_message_content(unique_ptr<MessageContent> &content, LogEventParser &parser) {
-  parse(content, parser);
-}
-
-InlineMessageContent create_inline_message_content(Td *td, FileId file_id,
-                                                   tl_object_ptr<telegram_api::BotInlineMessage> &&bot_inline_message,
-                                                   int32 allowed_media_content_id, Photo *photo, Game *game) {
-  CHECK(bot_inline_message != nullptr);
-  CHECK((allowed_media_content_id == td_api::inputMessagePhoto::ID) == (photo != nullptr));
-  CHECK((allowed_media_content_id == td_api::inputMessageGame::ID) == (game != nullptr));
-  CHECK((allowed_media_content_id != td_api::inputMessagePhoto::ID &&
-         allowed_media_content_id != td_api::inputMessageGame::ID && allowed_media_content_id != -1) ==
-        file_id.is_valid());
-
-  InlineMessageContent result;
-  tl_object_ptr<telegram_api::ReplyMarkup> reply_markup;
-  result.disable_web_page_preview = false;
-  result.invert_media = false;
-  switch (bot_inline_message->get_id()) {
-    case telegram_api::botInlineMessageText::ID: {
-      auto inline_message = telegram_api::move_object_as<telegram_api::botInlineMessageText>(bot_inline_message);
-      auto text = get_formatted_text(td->user_manager_.get(), std::move(inline_message->message_),
-                                     std::move(inline_message->entities_), false, false, "botInlineMessageText");
-      result.disable_web_page_preview = inline_message->no_webpage_;
-      result.invert_media = inline_message->invert_media_;
-      WebPageId web_page_id;
-      if (!result.disable_web_page_preview) {
-        web_page_id = td->web_pages_manager_->get_web_page_by_url(get_first_url(text).str());
-      }
-      result.message_content =
-          td::make_unique<MessageText>(std::move(text), web_page_id, false, false, false, string());
-      reply_markup = std::move(inline_message->reply_markup_);
-      break;
-    }
-    case telegram_api::botInlineMessageMediaWebPage::ID: {
-      auto inline_message =
-          telegram_api::move_object_as<telegram_api::botInlineMessageMediaWebPage>(bot_inline_message);
-      string web_page_url;
-      if (inline_message->manual_) {
-        web_page_url = std::move(inline_message->url_);
-      }
-      auto text =
-          get_formatted_text(td->user_manager_.get(), std::move(inline_message->message_),
-                             std::move(inline_message->entities_), false, false, "botInlineMessageMediaWebPage");
-      auto web_page_id =
-          td->web_pages_manager_->get_web_page_by_url(web_page_url.empty() ? get_first_url(text).str() : web_page_url);
-      result.message_content = td::make_unique<MessageText>(
-          std::move(text), web_page_id, inline_message->force_small_media_, inline_message->force_large_media_,
-          inline_message->safe_, std::move(web_page_url));
-      reply_markup = std::move(inline_message->reply_markup_);
-      result.invert_media = inline_message->invert_media_;
-      break;
-    }
-    case telegram_api::botInlineMessageMediaInvoice::ID: {
-      auto inline_message =
-          telegram_api::move_object_as<telegram_api::botInlineMessageMediaInvoice>(bot_inline_message);
-      reply_markup = std::move(inline_message->reply_markup_);
-      result.message_content = make_unique<MessageInvoice>(InputInvoice(std::move(inline_message), td, DialogId()));
-      break;
-    }
-    case telegram_api::botInlineMessageMediaGeo::ID: {
-      auto inline_message = telegram_api::move_object_as<telegram_api::botInlineMessageMediaGeo>(bot_inline_message);
-      if (inline_message->period_ > 0) {
-        result.message_content =
-            make_unique<MessageLiveLocation>(Location(td, inline_message->geo_), inline_message->period_,
-                                             inline_message->heading_, inline_message->proximity_notification_radius_);
-      } else {
-        result.message_content = make_unique<MessageLocation>(Location(td, inline_message->geo_));
-      }
-      reply_markup = std::move(inline_message->reply_markup_);
-      break;
-    }
-    case telegram_api::botInlineMessageMediaVenue::ID: {
-      auto inline_message = telegram_api::move_object_as<telegram_api::botInlineMessageMediaVenue>(bot_inline_message);
-      result.message_content = make_unique<MessageVenue>(
-          Venue(td, inline_message->geo_, std::move(inline_message->title_), std::move(inline_message->address_),
-                std::move(inline_message->provider_), std::move(inline_message->venue_id_),
-                std::move(inline_message->venue_type_)));
-      reply_markup = std::move(inline_message->reply_markup_);
-      break;
-    }
-    case telegram_api::botInlineMessageMediaContact::ID: {
-      auto inline_message =
-          telegram_api::move_object_as<telegram_api::botInlineMessageMediaContact>(bot_inline_message);
-      result.message_content = make_unique<MessageContact>(
-          Contact(std::move(inline_message->phone_number_), std::move(inline_message->first_name_),
-                  std::move(inline_message->last_name_), std::move(inline_message->vcard_), UserId()));
-      reply_markup = std::move(inline_message->reply_markup_);
-      break;
-    }
-    case telegram_api::botInlineMessageMediaAuto::ID: {
-      auto inline_message = telegram_api::move_object_as<telegram_api::botInlineMessageMediaAuto>(bot_inline_message);
-      auto caption =
-          get_message_text(td->user_manager_.get(), inline_message->message_, std::move(inline_message->entities_),
-                           true, false, 0, false, "create_inline_message_content");
-      if (allowed_media_content_id == td_api::inputMessageAnimation::ID) {
-        result.message_content = make_unique<MessageAnimation>(file_id, std::move(caption), false);
-      } else if (allowed_media_content_id == td_api::inputMessageAudio::ID) {
-        result.message_content = make_unique<MessageAudio>(file_id, std::move(caption));
-      } else if (allowed_media_content_id == td_api::inputMessageDocument::ID) {
-        result.message_content = make_unique<MessageDocument>(file_id, std::move(caption));
-      } else if (allowed_media_content_id == td_api::inputMessageGame::ID) {
-        CHECK(game != nullptr);
-        // TODO game->set_short_name(std::move(caption));
-        result.message_content = make_unique<MessageGame>(std::move(*game));
-      } else if (allowed_media_content_id == td_api::inputMessagePhoto::ID) {
-        result.message_content = make_unique<MessagePhoto>(std::move(*photo), std::move(caption), false);
-      } else if (allowed_media_content_id == td_api::inputMessageSticker::ID) {
-        result.message_content = make_unique<MessageSticker>(file_id, false);
-      } else if (allowed_media_content_id == td_api::inputMessageVideo::ID) {
-        result.message_content = td::make_unique<MessageVideo>(file_id, vector<FileId>(), vector<FileId>(), Photo(), 0,
-                                                               std::move(caption), false);
-      } else if (allowed_media_content_id == td_api::inputMessageVoiceNote::ID) {
-        result.message_content = make_unique<MessageVoiceNote>(file_id, std::move(caption), true);
-      } else {
-        LOG(WARNING) << "Unallowed bot inline message " << to_string(inline_message);
-      }
-
-      result.invert_media = inline_message->invert_media_;
-      reply_markup = std::move(inline_message->reply_markup_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  result.message_reply_markup = get_reply_markup(std::move(reply_markup), td->auth_manager_->is_bot(), true, false);
-  return result;
-}
-
-unique_ptr<MessageContent> create_text_message_content(string text, vector<MessageEntity> entities,
-                                                       WebPageId web_page_id, bool force_small_media,
-                                                       bool force_large_media, bool skip_confirmation,
-                                                       string &&web_page_url) {
-  return td::make_unique<MessageText>(FormattedText{std::move(text), std::move(entities)}, web_page_id,
-                                      force_small_media, force_large_media, skip_confirmation, std::move(web_page_url));
-}
-
-unique_ptr<MessageContent> create_photo_message_content(Photo photo) {
-  return make_unique<MessagePhoto>(std::move(photo), FormattedText(), false);
-}
-
-unique_ptr<MessageContent> create_video_message_content(FileId file_id, Photo cover, int32 start_timestamp) {
-  return td::make_unique<MessageVideo>(file_id, vector<FileId>(), vector<FileId>(), std::move(cover), start_timestamp,
-                                       FormattedText(), false);
-}
-
-unique_ptr<MessageContent> create_contact_registered_message_content() {
-  return make_unique<MessageContactRegistered>();
-}
-
-unique_ptr<MessageContent> create_screenshot_taken_message_content() {
-  return make_unique<MessageScreenshotTaken>();
-}
-
-unique_ptr<MessageContent> create_chat_set_ttl_message_content(int32 ttl, UserId from_user_id) {
-  return make_unique<MessageChatSetTtl>(ttl, from_user_id);
-}
-
-td_api::object_ptr<td_api::formattedText> extract_input_caption(
-    td_api::object_ptr<td_api::InputMessageContent> &input_message_content) {
-  switch (input_message_content->get_id()) {
-    case td_api::inputMessageAnimation::ID: {
-      auto input_animation = static_cast<td_api::inputMessageAnimation *>(input_message_content.get());
-      return std::move(input_animation->caption_);
-    }
-    case td_api::inputMessageAudio::ID: {
-      auto input_audio = static_cast<td_api::inputMessageAudio *>(input_message_content.get());
-      return std::move(input_audio->caption_);
-    }
-    case td_api::inputMessageDocument::ID: {
-      auto input_document = static_cast<td_api::inputMessageDocument *>(input_message_content.get());
-      return std::move(input_document->caption_);
-    }
-    case td_api::inputMessagePaidMedia::ID: {
-      auto input_paid_media = static_cast<td_api::inputMessagePaidMedia *>(input_message_content.get());
-      return std::move(input_paid_media->caption_);
-    }
-    case td_api::inputMessagePhoto::ID: {
-      auto input_photo = static_cast<td_api::inputMessagePhoto *>(input_message_content.get());
-      return std::move(input_photo->caption_);
-    }
-    case td_api::inputMessageVideo::ID: {
-      auto input_video = static_cast<td_api::inputMessageVideo *>(input_message_content.get());
-      return std::move(input_video->caption_);
-    }
-    case td_api::inputMessageVoiceNote::ID: {
-      auto input_voice_note = static_cast<td_api::inputMessageVoiceNote *>(input_message_content.get());
-      return std::move(input_voice_note->caption_);
-    }
-    default:
-      return nullptr;
-  }
-}
-
-bool extract_input_invert_media(const td_api::object_ptr<td_api::InputMessageContent> &input_message_content) {
-  switch (input_message_content->get_id()) {
-    case td_api::inputMessageAnimation::ID: {
-      auto input_animation = static_cast<const td_api::inputMessageAnimation *>(input_message_content.get());
-      return input_animation->show_caption_above_media_;
-    }
-    case td_api::inputMessagePaidMedia::ID: {
-      auto input_paid_media = static_cast<const td_api::inputMessagePaidMedia *>(input_message_content.get());
-      return input_paid_media->show_caption_above_media_;
-    }
-    case td_api::inputMessagePhoto::ID: {
-      auto input_photo = static_cast<const td_api::inputMessagePhoto *>(input_message_content.get());
-      return input_photo->show_caption_above_media_;
-    }
-    case td_api::inputMessageVideo::ID: {
-      auto input_video = static_cast<const td_api::inputMessageVideo *>(input_message_content.get());
-      return input_video->show_caption_above_media_;
-    }
-    default:
-      return false;
-  }
-}
-
-static Result<InputMessageContent> create_input_message_content(
-    DialogId dialog_id, tl_object_ptr<td_api::InputMessageContent> &&input_message_content, Td *td,
-    FormattedText caption, FileId file_id, PhotoSize thumbnail, vector<FileId> sticker_file_ids, bool is_premium) {
-  CHECK(input_message_content != nullptr);
-  LOG(INFO) << "Create InputMessageContent with file " << file_id << " and thumbnail " << thumbnail.file_id;
-
-  FileView file_view;
-  string file_name;
-  string mime_type;
-  if (file_id.is_valid()) {
-    file_view = td->file_manager_->get_file_view(file_id);
-    auto suggested_path = file_view.suggested_path();
-    const PathView path_view(suggested_path);
-    file_name = path_view.file_name().str();
-    mime_type = MimeType::from_extension(path_view.extension());
-  }
-
-  bool disable_web_page_preview = false;
-  bool invert_media = false;
-  bool clear_draft = false;
-  unique_ptr<MessageContent> content;
-  UserId via_bot_user_id;
-  td_api::object_ptr<td_api::MessageSelfDestructType> self_destruct_type;
-  string emoji;
-  bool is_bot = td->auth_manager_->is_bot();
-  bool is_secret = dialog_id.get_type() == DialogType::SecretChat;
-  switch (input_message_content->get_id()) {
-    case td_api::inputMessageText::ID: {
-      TRY_RESULT(input_message_text,
-                 process_input_message_text(td, dialog_id, std::move(input_message_content), is_bot));
-      auto web_page_url = std::move(input_message_text.web_page_url);
-      disable_web_page_preview = input_message_text.disable_web_page_preview;
-      invert_media = input_message_text.show_above_text;
-      clear_draft = input_message_text.clear_draft;
-
-      if (is_bot && static_cast<int64>(utf8_length(input_message_text.text.text)) >
-                        G()->get_option_integer("message_text_length_max")) {
-        return Status::Error(400, "Message is too long");
-      }
-
-      WebPageId web_page_id;
-      bool can_add_web_page_previews =
-          dialog_id.get_type() != DialogType::Channel ||
-          td->chat_manager_->get_channel_permissions(dialog_id.get_channel_id()).can_add_web_page_previews();
-      if (!is_bot && !disable_web_page_preview && can_add_web_page_previews) {
-        web_page_id = td->web_pages_manager_->get_web_page_by_url(
-            web_page_url.empty() ? get_first_url(input_message_text.text).str() : web_page_url);
-      }
-      content = td::make_unique<MessageText>(std::move(input_message_text.text), web_page_id,
-                                             input_message_text.force_small_media, input_message_text.force_large_media,
-                                             false, std::move(web_page_url));
-      break;
-    }
-    case td_api::inputMessageAnimation::ID: {
-      auto input_animation = static_cast<td_api::inputMessageAnimation *>(input_message_content.get());
-
-      invert_media = input_animation->show_caption_above_media_ && !is_secret;
-
-      bool has_stickers = !sticker_file_ids.empty();
-      td->animations_manager_->create_animation(
-          file_id, string(), std::move(thumbnail), AnimationSize(), has_stickers, std::move(sticker_file_ids),
-          std::move(file_name), std::move(mime_type), input_animation->duration_,
-          get_dimensions(input_animation->width_, input_animation->height_, nullptr), false);
-
-      content = make_unique<MessageAnimation>(file_id, std::move(caption), input_animation->has_spoiler_ && !is_secret);
-      break;
-    }
-    case td_api::inputMessageAudio::ID: {
-      auto input_audio = static_cast<td_api::inputMessageAudio *>(input_message_content.get());
-
-      if (!clean_input_string(input_audio->title_)) {
-        return Status::Error(400, "Audio title must be encoded in UTF-8");
-      }
-      if (!clean_input_string(input_audio->performer_)) {
-        return Status::Error(400, "Audio performer must be encoded in UTF-8");
-      }
-
-      td->audios_manager_->create_audio(file_id, string(), std::move(thumbnail), std::move(file_name),
-                                        std::move(mime_type), input_audio->duration_, std::move(input_audio->title_),
-                                        std::move(input_audio->performer_), 0, false);
-
-      content = make_unique<MessageAudio>(file_id, std::move(caption));
-      break;
-    }
-    case td_api::inputMessageDice::ID: {
-      auto input_dice = static_cast<td_api::inputMessageDice *>(input_message_content.get());
-      if (!clean_input_string(input_dice->emoji_)) {
-        return Status::Error(400, "Dice emoji must be encoded in UTF-8");
-      }
-      content = td::make_unique<MessageDice>(input_dice->emoji_, 0);
-      clear_draft = input_dice->clear_draft_;
-      break;
-    }
-    case td_api::inputMessageDocument::ID:
-      td->documents_manager_->create_document(file_id, string(), std::move(thumbnail), std::move(file_name),
-                                              std::move(mime_type), false);
-
-      content = make_unique<MessageDocument>(file_id, std::move(caption));
-      break;
-    case td_api::inputMessagePaidMedia::ID: {
-      auto input_paid_media = static_cast<td_api::inputMessagePaidMedia *>(input_message_content.get());
-
-      invert_media = input_paid_media->show_caption_above_media_ && !is_secret;
-
-      if (input_paid_media->star_count_ <= 0 ||
-          input_paid_media->star_count_ >
-              td->option_manager_->get_option_integer("paid_media_message_star_count_max")) {
-        return Status::Error(400, "Invalid media price specified");
-      }
-      vector<MessageExtendedMedia> extended_media;
-      for (auto &paid_media : input_paid_media->paid_media_) {
-        TRY_RESULT(media, MessageExtendedMedia::get_message_extended_media(td, std::move(paid_media), dialog_id));
-        if (media.is_empty()) {
-          return Status::Error(400, "Paid media must be non-empty");
-        }
-        extended_media.push_back(std::move(media));
-      }
-      static constexpr size_t MAX_PAID_MEDIA = 10;  // server side limit
-      if (extended_media.empty() || extended_media.size() > MAX_PAID_MEDIA) {
-        return Status::Error(400, "Invalid number of paid media specified");
-      }
-
-      content = td::make_unique<MessagePaidMedia>(std::move(extended_media), std::move(caption),
-                                                  input_paid_media->star_count_, std::move(input_paid_media->payload_));
-      break;
-    }
-    case td_api::inputMessagePhoto::ID: {
-      auto input_photo = static_cast<td_api::inputMessagePhoto *>(input_message_content.get());
-
-      invert_media = input_photo->show_caption_above_media_ && !is_secret;
-      self_destruct_type = std::move(input_photo->self_destruct_type_);
-
-      TRY_RESULT(photo, create_photo(td->file_manager_.get(), file_id, std::move(thumbnail), input_photo->width_,
-                                     input_photo->height_, std::move(sticker_file_ids)));
-
-      content =
-          make_unique<MessagePhoto>(std::move(photo), std::move(caption), input_photo->has_spoiler_ && !is_secret);
-      break;
-    }
-    case td_api::inputMessageSticker::ID: {
-      auto input_sticker = static_cast<td_api::inputMessageSticker *>(input_message_content.get());
-
-      emoji = std::move(input_sticker->emoji_);
-
-      td->stickers_manager_->create_sticker(file_id, FileId(), string(), std::move(thumbnail),
-                                            get_dimensions(input_sticker->width_, input_sticker->height_, nullptr),
-                                            nullptr, nullptr, StickerFormat::Unknown, nullptr);
-
-      content = make_unique<MessageSticker>(file_id, is_premium);
-      break;
-    }
-    case td_api::inputMessageVideo::ID: {
-      auto input_video = static_cast<td_api::inputMessageVideo *>(input_message_content.get());
-
-      invert_media = input_video->show_caption_above_media_ && !is_secret;
-      self_destruct_type = std::move(input_video->self_destruct_type_);
-
-      Photo cover;
-      if (!is_secret && self_destruct_type == nullptr) {
-        TRY_RESULT(cover_file_id, td->file_manager_->get_input_file_id(FileType::Photo, input_video->cover_, dialog_id,
-                                                                       true, is_secret, false));
-        if (cover_file_id.is_valid()) {
-          TRY_RESULT_ASSIGN(cover, create_photo(td->file_manager_.get(), cover_file_id, PhotoSize(),
-                                                input_video->width_, input_video->height_, Auto()));
-        }
-      }
-
-      bool has_stickers = !sticker_file_ids.empty();
-      td->videos_manager_->create_video(file_id, string(), std::move(thumbnail), AnimationSize(), has_stickers,
-                                        std::move(sticker_file_ids), std::move(file_name), std::move(mime_type),
-                                        input_video->duration_, input_video->duration_,
-                                        get_dimensions(input_video->width_, input_video->height_, nullptr),
-                                        input_video->supports_streaming_, false, 0, 0.0, string(), false);
-
-      content = td::make_unique<MessageVideo>(file_id, vector<FileId>(), vector<FileId>(), std::move(cover),
-                                              max(0, input_video->start_timestamp_), std::move(caption),
-                                              input_video->has_spoiler_ && !is_secret);
-      break;
-    }
-    case td_api::inputMessageVideoNote::ID: {
-      auto input_video_note = static_cast<td_api::inputMessageVideoNote *>(input_message_content.get());
-      self_destruct_type = std::move(input_video_note->self_destruct_type_);
-
-      auto length = input_video_note->length_;
-      if (length < 0 || length > 640) {
-        return Status::Error(400, "Wrong video note length");
-      }
-
-      td->video_notes_manager_->create_video_note(file_id, string(), std::move(thumbnail), input_video_note->duration_,
-                                                  get_dimensions(length, length, nullptr), string(), false);
-
-      content = make_unique<MessageVideoNote>(file_id, false);
-      break;
-    }
-    case td_api::inputMessageVoiceNote::ID: {
-      auto input_voice_note = static_cast<td_api::inputMessageVoiceNote *>(input_message_content.get());
-      self_destruct_type = std::move(input_voice_note->self_destruct_type_);
-
-      td->voice_notes_manager_->create_voice_note(file_id, std::move(mime_type), input_voice_note->duration_,
-                                                  std::move(input_voice_note->waveform_), false);
-
-      content = make_unique<MessageVoiceNote>(file_id, std::move(caption), false);
-      break;
-    }
-    case td_api::inputMessageLocation::ID: {
-      TRY_RESULT(location, process_input_message_location(std::move(input_message_content)));
-      if (location.live_period == 0) {
-        content = make_unique<MessageLocation>(std::move(location.location));
-      } else {
-        content = make_unique<MessageLiveLocation>(std::move(location.location), location.live_period, location.heading,
-                                                   location.proximity_alert_radius);
-      }
-      break;
-    }
-    case td_api::inputMessageVenue::ID: {
-      TRY_RESULT(venue, process_input_message_venue(std::move(input_message_content)));
-      content = make_unique<MessageVenue>(std::move(venue));
-      break;
-    }
-    case td_api::inputMessageContact::ID: {
-      TRY_RESULT(contact, process_input_message_contact(td, std::move(input_message_content)));
-      content = make_unique<MessageContact>(std::move(contact));
-      break;
-    }
-    case td_api::inputMessageGame::ID: {
-      TRY_RESULT(game, process_input_message_game(td->user_manager_.get(), std::move(input_message_content)));
-      via_bot_user_id = game.get_bot_user_id();
-      if (via_bot_user_id == td->user_manager_->get_my_id()) {
-        via_bot_user_id = UserId();
-      }
-
-      content = make_unique<MessageGame>(std::move(game));
-      break;
-    }
-    case td_api::inputMessageInvoice::ID: {
-      if (!is_bot) {
-        return Status::Error(400, "Invoices can be sent only by bots");
-      }
-
-      TRY_RESULT(input_invoice,
-                 InputInvoice::process_input_message_invoice(std::move(input_message_content), td, dialog_id));
-      content = make_unique<MessageInvoice>(std::move(input_invoice));
-      break;
-    }
-    case td_api::inputMessagePoll::ID: {
-      const size_t MAX_POLL_QUESTION_LENGTH = is_bot ? 300 : 255;  // server-side limit
-      constexpr size_t MAX_POLL_OPTION_LENGTH = 100;               // server-side limit
-      constexpr size_t MAX_POLL_OPTIONS = 10;                      // server-side limit
-      auto input_poll = static_cast<td_api::inputMessagePoll *>(input_message_content.get());
-      TRY_RESULT(question,
-                 get_formatted_text(td, dialog_id, std::move(input_poll->question_), is_bot, false, true, false));
-      if (utf8_length(question.text) > MAX_POLL_QUESTION_LENGTH) {
-        return Status::Error(400, PSLICE() << "Poll question length must not exceed " << MAX_POLL_QUESTION_LENGTH);
-      }
-      if (input_poll->options_.size() <= 1) {
-        return Status::Error(400, "Poll must have at least 2 option");
-      }
-      if (input_poll->options_.size() > MAX_POLL_OPTIONS) {
-        return Status::Error(400, PSLICE() << "Poll can't have more than " << MAX_POLL_OPTIONS << " options");
-      }
-      vector<FormattedText> options;
-      for (auto &input_option : input_poll->options_) {
-        TRY_RESULT(option, get_formatted_text(td, dialog_id, std::move(input_option), is_bot, false, true, false));
-        if (utf8_length(option.text) > MAX_POLL_OPTION_LENGTH) {
-          return Status::Error(400, PSLICE() << "Poll options length must not exceed " << MAX_POLL_OPTION_LENGTH);
-        }
-        options.push_back(std::move(option));
-      }
-
-      bool allow_multiple_answers = false;
-      bool is_quiz = false;
-      int32 correct_option_id = -1;
-      FormattedText explanation;
-      if (input_poll->type_ == nullptr) {
-        return Status::Error(400, "Poll type must be non-empty");
-      }
-      switch (input_poll->type_->get_id()) {
-        case td_api::pollTypeRegular::ID: {
-          auto type = td_api::move_object_as<td_api::pollTypeRegular>(input_poll->type_);
-          allow_multiple_answers = type->allow_multiple_answers_;
-          break;
-        }
-        case td_api::pollTypeQuiz::ID: {
-          auto type = td_api::move_object_as<td_api::pollTypeQuiz>(input_poll->type_);
-          is_quiz = true;
-          correct_option_id = type->correct_option_id_;
-          if (correct_option_id < 0 || correct_option_id >= static_cast<int32>(input_poll->options_.size())) {
-            return Status::Error(400, "Wrong correct option ID specified");
-          }
-          TRY_RESULT_ASSIGN(
-              explanation, get_formatted_text(td, dialog_id, std::move(type->explanation_), is_bot, true, true, false));
-          break;
-        }
-        default:
-          UNREACHABLE();
-      }
-
-      int32 open_period = is_bot ? input_poll->open_period_ : 0;
-      int32 close_date = is_bot ? input_poll->close_date_ : 0;
-      if (open_period != 0) {
-        close_date = 0;
-      }
-      bool is_closed = is_bot ? input_poll->is_closed_ : false;
-      content = make_unique<MessagePoll>(td->poll_manager_->create_poll(
-          std::move(question), std::move(options), input_poll->is_anonymous_, allow_multiple_answers, is_quiz,
-          correct_option_id, std::move(explanation), open_period, close_date, is_closed));
-      break;
-    }
-    case td_api::inputMessageStory::ID: {
-      auto input_story = static_cast<td_api::inputMessageStory *>(input_message_content.get());
-      DialogId story_sender_dialog_id(input_story->story_sender_chat_id_);
-      StoryId story_id(input_story->story_id_);
-      StoryFullId story_full_id(story_sender_dialog_id, story_id);
-      if (!td->story_manager_->have_story_force(story_full_id)) {
-        return Status::Error(400, "Story not found");
-      }
-      if (!story_id.is_server()) {
-        return Status::Error(400, "Story can't be forwarded");
-      }
-      if (td->dialog_manager_->get_input_peer(story_sender_dialog_id, AccessRights::Read) == nullptr) {
-        return Status::Error(400, "Can't access the story");
-      }
-      content = make_unique<MessageStory>(story_full_id, false);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  TRY_RESULT(ttl, MessageSelfDestructType::get_message_self_destruct_type(std::move(self_destruct_type)));
-  if (!ttl.is_empty() && dialog_id.get_type() != DialogType::User) {
-    return Status::Error(400, "Messages can self-destruct only in private chats");
-  }
-
-  return InputMessageContent{std::move(content), disable_web_page_preview, invert_media, clear_draft, ttl,
-                             via_bot_user_id,    std::move(emoji)};
-}
-
-Result<InputMessageContent> get_input_message_content(
-    DialogId dialog_id, tl_object_ptr<td_api::InputMessageContent> &&input_message_content, Td *td, bool is_premium) {
-  if (input_message_content == nullptr) {
-    return Status::Error(400, "Input message content must be non-empty");
-  }
-
-  td_api::object_ptr<td_api::InputFile> input_file;
-  auto file_type = FileType::None;
-  auto allow_get_by_hash = false;
-  td_api::object_ptr<td_api::inputThumbnail> input_thumbnail;
-  vector<FileId> sticker_file_ids;
-  switch (input_message_content->get_id()) {
-    case td_api::inputMessageAnimation::ID: {
-      auto input_message = static_cast<td_api::inputMessageAnimation *>(input_message_content.get());
-      file_type = FileType::Animation;
-      input_file = std::move(input_message->animation_);
-      allow_get_by_hash = true;
-      input_thumbnail = std::move(input_message->thumbnail_);
-      if (!input_message->added_sticker_file_ids_.empty()) {
-        sticker_file_ids = td->stickers_manager_->get_attached_sticker_file_ids(input_message->added_sticker_file_ids_);
-      }
-      break;
-    }
-    case td_api::inputMessageAudio::ID: {
-      auto input_message = static_cast<td_api::inputMessageAudio *>(input_message_content.get());
-      file_type = FileType::Audio;
-      input_file = std::move(input_message->audio_);
-      input_thumbnail = std::move(input_message->album_cover_thumbnail_);
-      break;
-    }
-    case td_api::inputMessageDocument::ID: {
-      auto input_message = static_cast<td_api::inputMessageDocument *>(input_message_content.get());
-      file_type = input_message->disable_content_type_detection_ ? FileType::DocumentAsFile : FileType::Document;
-      input_file = std::move(input_message->document_);
-      allow_get_by_hash = true;
-      input_thumbnail = std::move(input_message->thumbnail_);
-      break;
-    }
-    case td_api::inputMessagePhoto::ID: {
-      auto input_message = static_cast<td_api::inputMessagePhoto *>(input_message_content.get());
-      file_type = input_message->self_destruct_type_ != nullptr ? FileType::SelfDestructingPhoto : FileType::Photo;
-      input_file = std::move(input_message->photo_);
-      input_thumbnail = std::move(input_message->thumbnail_);
-      if (!input_message->added_sticker_file_ids_.empty()) {
-        sticker_file_ids = td->stickers_manager_->get_attached_sticker_file_ids(input_message->added_sticker_file_ids_);
-      }
-      break;
-    }
-    case td_api::inputMessageSticker::ID: {
-      auto input_message = static_cast<td_api::inputMessageSticker *>(input_message_content.get());
-      file_type = FileType::Sticker;
-      input_file = std::move(input_message->sticker_);
-      input_thumbnail = std::move(input_message->thumbnail_);
-      break;
-    }
-    case td_api::inputMessageVideo::ID: {
-      auto input_message = static_cast<td_api::inputMessageVideo *>(input_message_content.get());
-      file_type = input_message->self_destruct_type_ != nullptr ? FileType::SelfDestructingVideoNote : FileType::Video;
-      input_file = std::move(input_message->video_);
-      input_thumbnail = std::move(input_message->thumbnail_);
-      if (!input_message->added_sticker_file_ids_.empty()) {
-        sticker_file_ids = td->stickers_manager_->get_attached_sticker_file_ids(input_message->added_sticker_file_ids_);
-      }
-      break;
-    }
-    case td_api::inputMessageVideoNote::ID: {
-      auto input_message = static_cast<td_api::inputMessageVideoNote *>(input_message_content.get());
-      file_type =
-          input_message->self_destruct_type_ != nullptr ? FileType::SelfDestructingVideoNote : FileType::VideoNote;
-      input_file = std::move(input_message->video_note_);
-      input_thumbnail = std::move(input_message->thumbnail_);
-      break;
-    }
-    case td_api::inputMessageVoiceNote::ID: {
-      auto input_message = static_cast<td_api::inputMessageVoiceNote *>(input_message_content.get());
-      file_type =
-          input_message->self_destruct_type_ != nullptr ? FileType::SelfDestructingVoiceNote : FileType::VoiceNote;
-      input_file = std::move(input_message->voice_note_);
-      break;
-    }
-    default:
-      break;
-  }
-  // TODO path of files must be stored in bytes instead of UTF-8 string
-
-  bool is_secret = dialog_id.get_type() == DialogType::SecretChat;
-
-  FileId file_id;
-  if (file_type != FileType::None) {
-    TRY_RESULT_ASSIGN(file_id, td->file_manager_->get_input_file_id(file_type, input_file, dialog_id, false, is_secret,
-                                                                    allow_get_by_hash));
-    CHECK(file_id.is_valid());
-  }
-
-  bool is_bot = td->auth_manager_->is_bot();
-  TRY_RESULT(caption, get_formatted_text(td, dialog_id, extract_input_caption(input_message_content), is_bot, true,
-                                         false, false));
-  if (is_bot && static_cast<int64>(utf8_length(caption.text)) > G()->get_option_integer("message_caption_length_max")) {
-    return Status::Error(400, "Message caption is too long");
-  }
-  return create_input_message_content(
-      dialog_id, std::move(input_message_content), td, std::move(caption), file_id,
-      get_input_thumbnail_photo_size(td->file_manager_.get(), input_thumbnail.get(), dialog_id, is_secret),
-      std::move(sticker_file_ids), is_premium);
-}
-
-Status check_message_group_message_contents(const vector<InputMessageContent> &message_contents) {
-  static constexpr size_t MAX_GROUPED_MESSAGES = 10;  // server side limit
-  if (message_contents.size() > MAX_GROUPED_MESSAGES) {
-    return Status::Error(400, "Too many messages to send as an album");
-  }
-  if (message_contents.empty()) {
-    return Status::Error(400, "There are no messages to send");
-  }
-
-  std::unordered_set<MessageContentType, MessageContentTypeHash> message_content_types;
-  for (const auto &message_content : message_contents) {
-    auto message_content_type = message_content.content->get_type();
-    if (!is_allowed_media_group_content(message_content_type)) {
-      return Status::Error(400, "Invalid message content type");
-    }
-    if (message_content.invert_media != message_contents[0].invert_media) {
-      return Status::Error(400, "Parameter show_caption_above_media must be the same for all messages");
-    }
-    message_content_types.insert(message_content_type);
-  }
-  if (message_content_types.size() > 1) {
-    for (auto message_content_type : message_content_types) {
-      if (is_homogenous_media_group_content(message_content_type)) {
-        return Status::Error(400, PSLICE() << message_content_type << " can't be mixed with other media types");
-      }
-    }
-  }
-  return Status::OK();
-}
-
-bool can_message_content_have_input_media(const Td *td, const MessageContent *content, bool is_server) {
-  switch (content->get_type()) {
-    case MessageContentType::Game:
-      return is_server || static_cast<const MessageGame *>(content)->game.has_input_media();
-    case MessageContentType::Poll:
-      return td->poll_manager_->has_input_media(static_cast<const MessagePoll *>(content)->poll_id);
-    case MessageContentType::Story: {
-      auto story_full_id = static_cast<const MessageStory *>(content)->story_full_id;
-      auto dialog_id = story_full_id.get_dialog_id();
-      return td->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read) != nullptr;
-    }
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayWinners:
-      return is_server;
-    case MessageContentType::PaidMedia:
-      if (is_server) {
-        return true;
-      }
-      for (const auto &media : static_cast<const MessagePaidMedia *>(content)->media) {
-        if (!media.has_input_media()) {
-          return false;
-        }
-      }
-      return true;
-    case MessageContentType::Unsupported:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return false;
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Contact:
-    case MessageContentType::Dice:
-    case MessageContentType::Document:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Photo:
-    case MessageContentType::Sticker:
-    case MessageContentType::Text:
-    case MessageContentType::Venue:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-      return true;
-    default:
-      UNREACHABLE();
-  }
-}
-
-SecretInputMedia get_message_content_secret_input_media(
-    const MessageContent *content, Td *td, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-    BufferSlice thumbnail, int32 layer) {
-  switch (content->get_type()) {
-    case MessageContentType::Animation: {
-      const auto *m = static_cast<const MessageAnimation *>(content);
-      return td->animations_manager_->get_secret_input_media(m->file_id, std::move(input_file), m->caption.text,
-                                                             std::move(thumbnail), layer);
-    }
-    case MessageContentType::Audio: {
-      const auto *m = static_cast<const MessageAudio *>(content);
-      return td->audios_manager_->get_secret_input_media(m->file_id, std::move(input_file), m->caption.text,
-                                                         std::move(thumbnail), layer);
-    }
-    case MessageContentType::Contact: {
-      const auto *m = static_cast<const MessageContact *>(content);
-      return m->contact.get_secret_input_media_contact();
-    }
-    case MessageContentType::Document: {
-      const auto *m = static_cast<const MessageDocument *>(content);
-      return td->documents_manager_->get_secret_input_media(m->file_id, std::move(input_file), m->caption.text,
-                                                            std::move(thumbnail), layer);
-    }
-    case MessageContentType::Location: {
-      const auto *m = static_cast<const MessageLocation *>(content);
-      return m->location.get_secret_input_media_geo_point();
-    }
-    case MessageContentType::Photo: {
-      const auto *m = static_cast<const MessagePhoto *>(content);
-      return photo_get_secret_input_media(td->file_manager_.get(), m->photo, std::move(input_file), m->caption.text,
-                                          std::move(thumbnail));
-    }
-    case MessageContentType::Sticker: {
-      const auto *m = static_cast<const MessageSticker *>(content);
-      return td->stickers_manager_->get_secret_input_media(m->file_id, std::move(input_file), std::move(thumbnail),
-                                                           layer);
-    }
-    case MessageContentType::Text: {
-      CHECK(input_file == nullptr);
-      CHECK(thumbnail.empty());
-      const auto *m = static_cast<const MessageText *>(content);
-      if (m->web_page_url.empty()) {
-        return SecretInputMedia{};
-      }
-      return SecretInputMedia{nullptr, make_tl_object<secret_api::decryptedMessageMediaWebPage>(m->web_page_url)};
-    }
-    case MessageContentType::Venue: {
-      const auto *m = static_cast<const MessageVenue *>(content);
-      return m->venue.get_secret_input_media_venue();
-    }
-    case MessageContentType::Video: {
-      const auto *m = static_cast<const MessageVideo *>(content);
-      return td->videos_manager_->get_secret_input_media(m->file_id, std::move(input_file), m->caption.text,
-                                                         std::move(thumbnail), layer);
-    }
-    case MessageContentType::VideoNote: {
-      const auto *m = static_cast<const MessageVideoNote *>(content);
-      return td->video_notes_manager_->get_secret_input_media(m->file_id, std::move(input_file), std::move(thumbnail),
-                                                              layer);
-    }
-    case MessageContentType::VoiceNote: {
-      const auto *m = static_cast<const MessageVoiceNote *>(content);
-      return td->voice_notes_manager_->get_secret_input_media(m->file_id, std::move(input_file), m->caption.text,
-                                                              layer);
-    }
-    case MessageContentType::Call:
-    case MessageContentType::Dice:
-    case MessageContentType::Game:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Poll:
-    case MessageContentType::Story:
-    case MessageContentType::Unsupported:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return SecretInputMedia{};
-}
-
-static telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_input_media_impl(
-    const MessageContent *content, int32 media_pos, Td *td,
-    telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, MessageSelfDestructType ttl,
-    const string &emoji) {
-  if (!can_message_content_have_input_media(td, content, false)) {
-    return nullptr;
-  }
-  if (media_pos >= 0) {
-    CHECK(content->get_type() == MessageContentType::PaidMedia);
-  }
-  switch (content->get_type()) {
-    case MessageContentType::Animation: {
-      const auto *m = static_cast<const MessageAnimation *>(content);
-      return td->animations_manager_->get_input_media(m->file_id, std::move(input_file), std::move(input_thumbnail),
-                                                      m->has_spoiler);
-    }
-    case MessageContentType::Audio: {
-      const auto *m = static_cast<const MessageAudio *>(content);
-      return td->audios_manager_->get_input_media(m->file_id, std::move(input_file), std::move(input_thumbnail));
-    }
-    case MessageContentType::Contact: {
-      const auto *m = static_cast<const MessageContact *>(content);
-      return m->contact.get_input_media_contact();
-    }
-    case MessageContentType::Dice: {
-      const auto *m = static_cast<const MessageDice *>(content);
-      return make_tl_object<telegram_api::inputMediaDice>(m->emoji);
-    }
-    case MessageContentType::Document: {
-      const auto *m = static_cast<const MessageDocument *>(content);
-      return td->documents_manager_->get_input_media(m->file_id, std::move(input_file), std::move(input_thumbnail));
-    }
-    case MessageContentType::Game: {
-      const auto *m = static_cast<const MessageGame *>(content);
-      return m->game.get_input_media_game(td);
-    }
-    case MessageContentType::Invoice: {
-      const auto *m = static_cast<const MessageInvoice *>(content);
-      return m->input_invoice.get_input_media_invoice(td, std::move(input_file), std::move(input_thumbnail));
-    }
-    case MessageContentType::LiveLocation: {
-      const auto *m = static_cast<const MessageLiveLocation *>(content);
-      int32 flags = telegram_api::inputMediaGeoLive::PERIOD_MASK;
-      if (m->heading != 0) {
-        flags |= telegram_api::inputMediaGeoLive::HEADING_MASK;
-      }
-      flags |= telegram_api::inputMediaGeoLive::PROXIMITY_NOTIFICATION_RADIUS_MASK;
-      return make_tl_object<telegram_api::inputMediaGeoLive>(flags, false, m->location.get_input_geo_point(),
-                                                             m->heading, m->period, m->proximity_alert_radius);
-    }
-    case MessageContentType::Location: {
-      const auto *m = static_cast<const MessageLocation *>(content);
-      return m->location.get_input_media_geo_point();
-    }
-    case MessageContentType::PaidMedia: {
-      const auto *m = static_cast<const MessagePaidMedia *>(content);
-      if (media_pos >= 0) {
-        CHECK(static_cast<size_t>(media_pos) < m->media.size());
-        return m->media[media_pos].get_input_media(td, std::move(input_file), std::move(input_thumbnail));
-      }
-      CHECK(m->media.size() == 1u || (input_file == nullptr && input_thumbnail == nullptr));
-      vector<telegram_api::object_ptr<telegram_api::InputMedia>> input_media;
-      for (auto &extended_media : m->media) {
-        auto media = extended_media.get_input_media(td, std::move(input_file), std::move(input_thumbnail));
-        if (media == nullptr) {
-          return nullptr;
-        }
-        input_media.push_back(std::move(media));
-      }
-      int32 flags = 0;
-      if (!m->payload.empty()) {
-        flags |= telegram_api::inputMediaPaidMedia::PAYLOAD_MASK;
-      }
-      return telegram_api::make_object<telegram_api::inputMediaPaidMedia>(flags, m->star_count, std::move(input_media),
-                                                                          m->payload);
-    }
-    case MessageContentType::Photo: {
-      const auto *m = static_cast<const MessagePhoto *>(content);
-      return photo_get_input_media(td->file_manager_.get(), m->photo, std::move(input_file), ttl.get_input_ttl(),
-                                   m->has_spoiler);
-    }
-    case MessageContentType::Poll: {
-      const auto *m = static_cast<const MessagePoll *>(content);
-      return td->poll_manager_->get_input_media(m->poll_id);
-    }
-    case MessageContentType::Sticker: {
-      const auto *m = static_cast<const MessageSticker *>(content);
-      return td->stickers_manager_->get_input_media(m->file_id, std::move(input_file), std::move(input_thumbnail),
-                                                    emoji);
-    }
-    case MessageContentType::Story: {
-      const auto *m = static_cast<const MessageStory *>(content);
-      return td->story_manager_->get_input_media(m->story_full_id);
-    }
-    case MessageContentType::Venue: {
-      const auto *m = static_cast<const MessageVenue *>(content);
-      return m->venue.get_input_media_venue();
-    }
-    case MessageContentType::Video: {
-      const auto *m = static_cast<const MessageVideo *>(content);
-      return td->videos_manager_->get_input_media(m->file_id, std::move(input_file), std::move(input_thumbnail),
-                                                  m->cover, m->start_timestamp, ttl.get_input_ttl(), m->has_spoiler);
-    }
-    case MessageContentType::VideoNote: {
-      const auto *m = static_cast<const MessageVideoNote *>(content);
-      return td->video_notes_manager_->get_input_media(m->file_id, std::move(input_file), std::move(input_thumbnail),
-                                                       ttl.get_input_ttl());
-    }
-    case MessageContentType::VoiceNote: {
-      const auto *m = static_cast<const MessageVoiceNote *>(content);
-      return td->voice_notes_manager_->get_input_media(m->file_id, std::move(input_file), ttl.get_input_ttl());
-    }
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return nullptr;
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_input_media(
-    const MessageContent *content, int32 media_pos, Td *td,
-    telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, FileUploadId file_upload_id,
-    FileUploadId thumbnail_file_upload_id, MessageSelfDestructType ttl, const string &emoji, bool force) {
-  bool had_input_file = input_file != nullptr;
-  bool had_input_thumbnail = input_thumbnail != nullptr;
-  auto input_media = get_message_content_input_media_impl(content, media_pos, td, std::move(input_file),
-                                                          std::move(input_thumbnail), ttl, emoji);
-  auto was_uploaded = FileManager::extract_was_uploaded(input_media);
-  if (had_input_file) {
-    if (!was_uploaded) {
-      // if we had InputFile, but has failed to use it, then we need to immediately cancel file upload
-      // so the next upload with the same file can succeed
-      CHECK(file_upload_id.is_valid());
-      td->file_manager_->cancel_upload(file_upload_id);
-      if (had_input_thumbnail) {
-        CHECK(thumbnail_file_upload_id.is_valid());
-        td->file_manager_->cancel_upload(thumbnail_file_upload_id);
-      }
-    }
-  } else {
-    CHECK(!had_input_thumbnail);
-  }
-  if (!was_uploaded) {
-    auto file_references = FileManager::extract_file_references(input_media);
-    for (auto &file_reference : file_references) {
-      if (file_reference == FileReferenceView::invalid_file_reference()) {
-        if (!force) {
-          LOG(INFO) << "Have invalid file reference for " << file_upload_id;
-          return nullptr;
-        }
-        LOG(ERROR) << "Have invalid file reference for " << file_upload_id << ", but we are forced to use it";
-      }
-    }
-  }
-  return input_media;
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_input_media(const MessageContent *content,
-                                                                                   Td *td, MessageSelfDestructType ttl,
-                                                                                   const string &emoji, bool force,
-                                                                                   int32 media_pos) {
-  auto input_media = get_message_content_input_media_impl(content, media_pos, td, nullptr, nullptr, ttl, emoji);
-  auto file_references = FileManager::extract_file_references(input_media);
-  for (size_t i = 0; i < file_references.size(); i++) {
-    if (file_references[i] == FileReferenceView::invalid_file_reference()) {
-      auto file_ids = get_message_content_any_file_ids(content);
-      CHECK(file_ids.size() == file_references.size());
-      auto file_id = file_ids[i];
-      if (!force) {
-        LOG(INFO) << "File " << file_id << " has invalid file reference";
-        return nullptr;
-      }
-      LOG(ERROR) << "File " << file_id << " has invalid file reference, but we are forced to use it";
-    }
-  }
-  return input_media;
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_fake_input_media(
-    Td *td, telegram_api::object_ptr<telegram_api::InputFile> input_file, FileId file_id) {
-  FileView file_view = td->file_manager_->get_file_view(file_id);
-  auto file_type = file_view.get_type();
-  if (is_document_file_type(file_type)) {
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    auto file_path = file_view.suggested_path();
-    const PathView path_view(file_path);
-    Slice file_name = path_view.file_name();
-    if (!file_name.empty()) {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeFilename>(file_name.str()));
-    }
-    string mime_type = MimeType::from_extension(path_view.extension());
-    auto nosound_video = (file_type == FileType::Video || file_type == FileType::VideoStory ||
-                          file_type == FileType::SelfDestructingVideo);
-    auto force_file = (file_type == FileType::DocumentAsFile);
-    return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-        0, nosound_video, force_file, false, std::move(input_file), nullptr, mime_type, std::move(attributes),
-        vector<telegram_api::object_ptr<telegram_api::InputDocument>>(), nullptr, 0, 0);
-  } else {
-    CHECK(file_type == FileType::Photo || file_type == FileType::PhotoStory ||
-          file_type == FileType::SelfDestructingPhoto);
-    return telegram_api::make_object<telegram_api::inputMediaUploadedPhoto>(
-        0, false, std::move(input_file), vector<telegram_api::object_ptr<telegram_api::InputDocument>>(), 0);
-  }
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_input_media_web_page(
-    const Td *td, const MessageContent *content) {
-  CHECK(content != nullptr);
-  if (content->get_type() != MessageContentType::Text) {
-    return nullptr;
-  }
-  auto *text = static_cast<const MessageText *>(content);
-  if (text->web_page_url.empty()) {
-    return nullptr;
-  }
-  bool is_optional = !text->text.text.empty();
-  return telegram_api::make_object<telegram_api::inputMediaWebPage>(0, text->force_large_media, text->force_small_media,
-                                                                    is_optional, text->web_page_url);
-}
-
-bool is_uploaded_input_media(telegram_api::object_ptr<telegram_api::InputMedia> &input_media) {
-  CHECK(input_media != nullptr);
-  LOG(DEBUG) << "Have " << to_string(input_media);
-  switch (input_media->get_id()) {
-    case telegram_api::inputMediaUploadedDocument::ID:
-      static_cast<telegram_api::inputMediaUploadedDocument *>(input_media.get())->nosound_video_ = true;
-    // fallthrough
-    case telegram_api::inputMediaUploadedPhoto::ID:
-    case telegram_api::inputMediaDocumentExternal::ID:
-    case telegram_api::inputMediaPhotoExternal::ID:
-      return false;
-    case telegram_api::inputMediaDocument::ID:
-    case telegram_api::inputMediaPhoto::ID:
-      return true;
-    case telegram_api::inputMediaPaidMedia::ID:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-void delete_message_content_thumbnail(MessageContent *content, Td *td, int32 media_pos) {
-  if (media_pos != -1) {
-    CHECK(content->get_type() == MessageContentType::PaidMedia);
-  }
-  switch (content->get_type()) {
-    case MessageContentType::Animation: {
-      auto *m = static_cast<MessageAnimation *>(content);
-      return td->animations_manager_->delete_animation_thumbnail(m->file_id);
-    }
-    case MessageContentType::Audio: {
-      auto *m = static_cast<MessageAudio *>(content);
-      return td->audios_manager_->delete_audio_thumbnail(m->file_id);
-    }
-    case MessageContentType::Document: {
-      auto *m = static_cast<MessageDocument *>(content);
-      return td->documents_manager_->delete_document_thumbnail(m->file_id);
-    }
-    case MessageContentType::Invoice: {
-      auto *m = static_cast<MessageInvoice *>(content);
-      return m->input_invoice.delete_thumbnail(td);
-    }
-    case MessageContentType::PaidMedia: {
-      auto *m = static_cast<MessagePaidMedia *>(content);
-      if (media_pos == -1) {
-        CHECK(m->media.size() == 1u);
-        media_pos = 0;
-      } else {
-        CHECK(static_cast<size_t>(media_pos) < m->media.size());
-      }
-      m->media[media_pos].delete_thumbnail(td);
-      break;
-    }
-    case MessageContentType::Photo: {
-      auto *m = static_cast<MessagePhoto *>(content);
-      return photo_delete_thumbnail(m->photo);
-    }
-    case MessageContentType::Sticker: {
-      auto *m = static_cast<MessageSticker *>(content);
-      return td->stickers_manager_->delete_sticker_thumbnail(m->file_id);
-    }
-    case MessageContentType::Video: {
-      auto *m = static_cast<MessageVideo *>(content);
-      return td->videos_manager_->delete_video_thumbnail(m->file_id);
-    }
-    case MessageContentType::VideoNote: {
-      auto *m = static_cast<MessageVideoNote *>(content);
-      return td->video_notes_manager_->delete_video_note_thumbnail(m->file_id);
-    }
-    case MessageContentType::Contact:
-    case MessageContentType::Dice:
-    case MessageContentType::Game:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Story:
-    case MessageContentType::Venue:
-    case MessageContentType::VoiceNote:
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-Status can_send_message_content(DialogId dialog_id, const MessageContent *content, bool is_forward,
-                                bool check_permissions, const Td *td) {
-  auto dialog_type = dialog_id.get_type();
-  RestrictedRights permissions = [&] {
-    if (!check_permissions) {
-      return RestrictedRights(true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
-                              true, true, ChannelType::Unknown);
-    }
-    switch (dialog_type) {
-      case DialogType::User:
-        return td->user_manager_->get_user_default_permissions(dialog_id.get_user_id());
-      case DialogType::Chat:
-        return td->chat_manager_->get_chat_permissions(dialog_id.get_chat_id()).get_effective_restricted_rights();
-      case DialogType::Channel:
-        return td->chat_manager_->get_channel_permissions(dialog_id.get_channel_id()).get_effective_restricted_rights();
-      case DialogType::SecretChat:
-        return td->user_manager_->get_secret_chat_default_permissions(dialog_id.get_secret_chat_id());
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-        return td->user_manager_->get_user_default_permissions(UserId());
-    }
-  }();
-
-  auto content_type = content->get_type();
-  if (dialog_type == DialogType::SecretChat && !can_send_message_content_to_secret_chat(content_type)) {
-    return Status::Error(400, "Message can't be sent to a secret chat");
-  }
-  switch (content_type) {
-    case MessageContentType::Animation:
-      if (!permissions.can_send_animations()) {
-        return Status::Error(400, "Not enough rights to send animations to the chat");
-      }
-      break;
-    case MessageContentType::Audio:
-      if (!permissions.can_send_audios()) {
-        return Status::Error(400, "Not enough rights to send music to the chat");
-      }
-      break;
-    case MessageContentType::Contact:
-      if (!permissions.can_send_messages()) {
-        return Status::Error(400, "Not enough rights to send contacts to the chat");
-      }
-      break;
-    case MessageContentType::Dice:
-      if (!permissions.can_send_stickers()) {
-        return Status::Error(400, "Not enough rights to send dice to the chat");
-      }
-      break;
-    case MessageContentType::Document:
-      if (!permissions.can_send_documents()) {
-        return Status::Error(400, "Not enough rights to send documents to the chat");
-      }
-      break;
-    case MessageContentType::Game:
-      if (dialog_type == DialogType::Channel && td->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id())) {
-        // return Status::Error(400, "Games can't be sent to channel chats");
-      }
-      if (!permissions.can_send_games()) {
-        return Status::Error(400, "Not enough rights to send games to the chat");
-      }
-      break;
-    case MessageContentType::Giveaway:
-      if (!permissions.can_send_messages()) {
-        return Status::Error(400, "Not enough rights to send giveaways to the chat");
-      }
-      break;
-    case MessageContentType::GiveawayWinners:
-      if (!permissions.can_send_messages()) {
-        return Status::Error(400, "Not enough rights to send giveaway winners to the chat");
-      }
-      break;
-    case MessageContentType::Invoice:
-      if (!permissions.can_send_messages()) {
-        return Status::Error(400, "Not enough rights to send invoice messages to the chat");
-      }
-      break;
-    case MessageContentType::LiveLocation:
-      if (!permissions.can_send_messages()) {
-        return Status::Error(400, "Not enough rights to send live locations to the chat");
-      }
-      break;
-    case MessageContentType::Location:
-      if (!permissions.can_send_messages()) {
-        return Status::Error(400, "Not enough rights to send locations to the chat");
-      }
-      break;
-    case MessageContentType::PaidMedia:
-      if (is_forward) {
-        if (!permissions.can_send_photos() || !permissions.can_send_videos()) {
-          return Status::Error(400, "Not enough rights to send paid media to the chat");
-        }
-      } else {
-        if (!td->auth_manager_->is_bot() && (dialog_type != DialogType::Channel ||
-                                             !td->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id()))) {
-          return Status::Error(400, "Paid media can be sent only in channel chats");
-        }
-      }
-      break;
-    case MessageContentType::Photo:
-      if (!permissions.can_send_photos()) {
-        return Status::Error(400, "Not enough rights to send photos to the chat");
-      }
-      break;
-    case MessageContentType::Poll:
-      if (!permissions.can_send_polls()) {
-        return Status::Error(400, "Not enough rights to send polls to the chat");
-      }
-      if (dialog_type == DialogType::Channel && td->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id()) &&
-          !td->poll_manager_->get_poll_is_anonymous(static_cast<const MessagePoll *>(content)->poll_id)) {
-        return Status::Error(400, "Non-anonymous polls can't be sent to channel chats");
-      }
-      if (dialog_type == DialogType::User && !is_forward && !td->auth_manager_->is_bot() &&
-          !td->user_manager_->is_user_bot(dialog_id.get_user_id())) {
-        return Status::Error(400, "Polls can't be sent to the private chat");
-      }
-      break;
-    case MessageContentType::Sticker:
-      if (!permissions.can_send_stickers()) {
-        return Status::Error(400, "Not enough rights to send stickers to the chat");
-      }
-      if (get_message_content_sticker_type(td, content) == StickerType::CustomEmoji) {
-        return Status::Error(400, "Can't send emoji stickers in messages");
-      }
-      break;
-    case MessageContentType::Story:
-      if (!permissions.can_send_photos() || !permissions.can_send_videos()) {
-        return Status::Error(400, "Not enough rights to send stories to the chat");
-      }
-      break;
-    case MessageContentType::Text:
-      if (!permissions.can_send_messages()) {
-        return Status::Error(400, "Not enough rights to send text messages to the chat");
-      }
-      break;
-    case MessageContentType::Venue:
-      if (!permissions.can_send_messages()) {
-        return Status::Error(400, "Not enough rights to send venues to the chat");
-      }
-      break;
-    case MessageContentType::Video:
-      if (!permissions.can_send_videos()) {
-        return Status::Error(400, "Not enough rights to send videos to the chat");
-      }
-      break;
-    case MessageContentType::VideoNote:
-      if (!permissions.can_send_video_notes()) {
-        return Status::Error(400, "Not enough rights to send video notes to the chat");
-      }
-      if (dialog_type == DialogType::User &&
-          td->user_manager_->get_user_voice_messages_forbidden(dialog_id.get_user_id())) {
-        return Status::Error(400, "User restricted receiving of voice messages");
-      }
-      break;
-    case MessageContentType::VoiceNote:
-      if (!permissions.can_send_voice_notes()) {
-        return Status::Error(400, "Not enough rights to send voice notes to the chat");
-      }
-      if (dialog_type == DialogType::User &&
-          td->user_manager_->get_user_voice_messages_forbidden(dialog_id.get_user_id())) {
-        return Status::Error(400, "User restricted receiving of video messages");
-      }
-      break;
-    case MessageContentType::None:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      UNREACHABLE();
-  }
-  return Status::OK();
-}
-
-bool can_forward_message_content(const MessageContent *content) {
-  auto content_type = content->get_type();
-  if (content_type == MessageContentType::Text) {
-    auto *text = static_cast<const MessageText *>(content);
-    // text must be non-empty if there is no link preview
-    return !is_empty_string(text->text.text) || text->web_page_id.is_valid() || !text->web_page_url.empty();
-  }
-  if (content_type == MessageContentType::Poll) {
-    auto *poll = static_cast<const MessagePoll *>(content);
-    return !PollManager::is_local_poll_id(poll->poll_id);
-  }
-
-  return !is_service_message_content(content_type) && content_type != MessageContentType::Unsupported &&
-         !is_expired_message_content(content_type);
-}
-
-bool update_opened_message_content(MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::VideoNote: {
-      auto video_note_content = static_cast<MessageVideoNote *>(content);
-      if (video_note_content->is_viewed) {
-        return false;
-      }
-      video_note_content->is_viewed = true;
-      return true;
-    }
-    case MessageContentType::VoiceNote: {
-      auto voice_note_content = static_cast<MessageVoiceNote *>(content);
-      if (voice_note_content->is_listened) {
-        return false;
-      }
-      voice_note_content->is_listened = true;
-      return true;
-    }
-    default:
-      return false;
-  }
-}
-
-static int32 get_message_content_text_index_mask(const MessageContent *content) {
-  const FormattedText *text = get_message_content_text(content);
-  if (text == nullptr || content->get_type() == MessageContentType::Game) {
-    return 0;
-  }
-
-  for (auto &entity : text->entities) {
-    if (entity.type == MessageEntity::Type::Url || entity.type == MessageEntity::Type::EmailAddress ||
-        entity.type == MessageEntity::Type::TextUrl) {
-      return message_search_filter_index_mask(MessageSearchFilter::Url);
-    }
-  }
-  return 0;
-}
-
-static int32 get_message_content_media_index_mask(const MessageContent *content, const Td *td, bool is_outgoing) {
-  switch (content->get_type()) {
-    case MessageContentType::Animation:
-      return message_search_filter_index_mask(MessageSearchFilter::Animation);
-    case MessageContentType::Audio:
-      return message_search_filter_index_mask(MessageSearchFilter::Audio);
-    case MessageContentType::Document:
-      return message_search_filter_index_mask(MessageSearchFilter::Document);
-    case MessageContentType::Photo:
-      return message_search_filter_index_mask(MessageSearchFilter::Photo) |
-             message_search_filter_index_mask(MessageSearchFilter::PhotoAndVideo);
-    case MessageContentType::Video:
-      return message_search_filter_index_mask(MessageSearchFilter::Video) |
-             message_search_filter_index_mask(MessageSearchFilter::PhotoAndVideo);
-    case MessageContentType::VideoNote:
-      return message_search_filter_index_mask(MessageSearchFilter::VideoNote) |
-             message_search_filter_index_mask(MessageSearchFilter::VoiceAndVideoNote);
-    case MessageContentType::VoiceNote:
-      return message_search_filter_index_mask(MessageSearchFilter::VoiceNote) |
-             message_search_filter_index_mask(MessageSearchFilter::VoiceAndVideoNote);
-    case MessageContentType::ChatChangePhoto:
-      return message_search_filter_index_mask(MessageSearchFilter::ChatPhoto);
-    case MessageContentType::Call: {
-      int32 index_mask = message_search_filter_index_mask(MessageSearchFilter::Call);
-      const auto *m = static_cast<const MessageCall *>(content);
-      if (!is_outgoing && (m->discard_reason.type_ == CallDiscardReason::Type::Declined ||
-                           m->discard_reason.type_ == CallDiscardReason::Type::Missed)) {
-        index_mask |= message_search_filter_index_mask(MessageSearchFilter::MissedCall);
-      }
-      return index_mask;
-    }
-    case MessageContentType::Text:
-    case MessageContentType::Contact:
-    case MessageContentType::Game:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Sticker:
-    case MessageContentType::Story:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Venue:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return 0;
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-  return 0;
-}
-
-int32 get_message_content_index_mask(const MessageContent *content, const Td *td, bool is_outgoing) {
-  return get_message_content_text_index_mask(content) | get_message_content_media_index_mask(content, td, is_outgoing);
-}
-
-vector<unique_ptr<MessageContent>> get_individual_message_contents(const MessageContent *content) {
-  CHECK(content->get_type() == MessageContentType::PaidMedia);
-  const auto *m = static_cast<const MessagePaidMedia *>(content);
-  return transform(m->media, [](const MessageExtendedMedia &media) { return media.get_message_content(); });
-}
-
-StickerType get_message_content_sticker_type(const Td *td, const MessageContent *content) {
-  CHECK(content->get_type() == MessageContentType::Sticker);
-  return td->stickers_manager_->get_sticker_type(static_cast<const MessageSticker *>(content)->file_id);
-}
-
-MessageId get_message_content_pinned_message_id(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::PinMessage:
-      return static_cast<const MessagePinMessage *>(content)->message_id;
-    default:
-      return MessageId();
-  }
-}
-
-BackgroundInfo get_message_content_my_background_info(const MessageContent *content, bool is_outgoing) {
-  switch (content->get_type()) {
-    case MessageContentType::SetBackground: {
-      const auto *set_background = static_cast<const MessageSetBackground *>(content);
-      if (is_outgoing || set_background->for_both) {
-        return set_background->background_info;
-      }
-      break;
-    }
-    default:
-      break;
-  }
-  return BackgroundInfo();
-}
-
-string get_message_content_theme_name(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::ChatSetTheme:
-      return static_cast<const MessageChatSetTheme *>(content)->emoji;
-    default:
-      return string();
-  }
-}
-
-MessageFullId get_message_content_replied_message_id(DialogId dialog_id, const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::PinMessage:
-      return {dialog_id, static_cast<const MessagePinMessage *>(content)->message_id};
-    case MessageContentType::GameScore:
-      return {dialog_id, static_cast<const MessageGameScore *>(content)->game_message_id};
-    case MessageContentType::PaymentSuccessful: {
-      auto *m = static_cast<const MessagePaymentSuccessful *>(content);
-      if (!m->invoice_message_id.is_valid()) {
-        return MessageFullId();
-      }
-
-      auto reply_in_dialog_id = m->invoice_dialog_id.is_valid() ? m->invoice_dialog_id : dialog_id;
-      return {reply_in_dialog_id, m->invoice_message_id};
-    }
-    case MessageContentType::SetBackground: {
-      auto *m = static_cast<const MessageSetBackground *>(content);
-      if (!m->old_message_id.is_valid()) {
-        return MessageFullId();
-      }
-
-      return {dialog_id, m->old_message_id};
-    }
-    case MessageContentType::GiveawayResults: {
-      auto *m = static_cast<const MessageGiveawayResults *>(content);
-      if (!m->giveaway_message_id.is_valid()) {
-        return MessageFullId();
-      }
-
-      return {dialog_id, m->giveaway_message_id};
-    }
-    default:
-      return MessageFullId();
-  }
-}
-
-std::pair<InputGroupCallId, bool> get_message_content_group_call_info(const MessageContent *content) {
-  CHECK(content->get_type() == MessageContentType::GroupCall);
-  const auto *m = static_cast<const MessageGroupCall *>(content);
-  return {m->input_group_call_id, m->duration >= 0};
-}
-
-static vector<UserId> get_formatted_text_user_ids(const FormattedText *formatted_text) {
-  vector<UserId> user_ids;
-  if (formatted_text != nullptr) {
-    for (auto &entity : formatted_text->entities) {
-      if (entity.user_id.is_valid()) {
-        user_ids.push_back(entity.user_id);
-      }
-    }
-  }
-  return user_ids;
-}
-
-vector<UserId> get_message_content_min_user_ids(const Td *td, const MessageContent *message_content) {
-  CHECK(message_content != nullptr);
-  switch (message_content->get_type()) {
-    case MessageContentType::Text: {
-      const auto *content = static_cast<const MessageText *>(message_content);
-      auto user_ids = get_formatted_text_user_ids(&content->text);
-      if (content->web_page_id.is_valid()) {
-        combine(user_ids, td->web_pages_manager_->get_web_page_user_ids(content->web_page_id));
-      }
-      return user_ids;
-    }
-    case MessageContentType::Animation:
-      break;
-    case MessageContentType::Audio:
-      break;
-    case MessageContentType::Contact: {
-      const auto *content = static_cast<const MessageContact *>(message_content);
-      auto user_id = content->contact.get_user_id();
-      if (user_id.is_valid()) {
-        return {user_id};
-      }
-      break;
-    }
-    case MessageContentType::Document:
-      break;
-    case MessageContentType::Game: {
-      const auto *content = static_cast<const MessageGame *>(message_content);
-      auto user_id = content->game.get_bot_user_id();
-      if (user_id.is_valid()) {
-        return {user_id};
-      }
-      break;
-    }
-    case MessageContentType::Invoice:
-      break;
-    case MessageContentType::LiveLocation:
-      break;
-    case MessageContentType::Location:
-      break;
-    case MessageContentType::Photo:
-      break;
-    case MessageContentType::Sticker:
-      break;
-    case MessageContentType::Venue:
-      break;
-    case MessageContentType::Video:
-      break;
-    case MessageContentType::VideoNote:
-      break;
-    case MessageContentType::VoiceNote:
-      break;
-    case MessageContentType::ChatCreate: {
-      const auto *content = static_cast<const MessageChatCreate *>(message_content);
-      return content->participant_user_ids;
-    }
-    case MessageContentType::ChatChangeTitle:
-      break;
-    case MessageContentType::ChatChangePhoto:
-      break;
-    case MessageContentType::ChatDeletePhoto:
-      break;
-    case MessageContentType::ChatDeleteHistory:
-      break;
-    case MessageContentType::ChatAddUsers: {
-      const auto *content = static_cast<const MessageChatAddUsers *>(message_content);
-      return content->user_ids;
-    }
-    case MessageContentType::ChatJoinedByLink:
-      break;
-    case MessageContentType::ChatDeleteUser: {
-      const auto *content = static_cast<const MessageChatDeleteUser *>(message_content);
-      return {content->user_id};
-    }
-    case MessageContentType::ChatMigrateTo:
-      break;
-    case MessageContentType::ChannelCreate:
-      break;
-    case MessageContentType::ChannelMigrateFrom:
-      break;
-    case MessageContentType::PinMessage:
-      break;
-    case MessageContentType::GameScore:
-      break;
-    case MessageContentType::ScreenshotTaken:
-      break;
-    case MessageContentType::ChatSetTtl:
-      // the content->from_user_id user can't be min
-      break;
-    case MessageContentType::Unsupported:
-      break;
-    case MessageContentType::Call:
-      break;
-    case MessageContentType::PaymentSuccessful:
-      break;
-    case MessageContentType::ContactRegistered:
-      break;
-    case MessageContentType::ExpiredPhoto:
-      break;
-    case MessageContentType::ExpiredVideo:
-      break;
-    case MessageContentType::CustomServiceAction:
-      break;
-    case MessageContentType::WebsiteConnected:
-      break;
-    case MessageContentType::PassportDataSent:
-      break;
-    case MessageContentType::PassportDataReceived:
-      break;
-    case MessageContentType::Poll:
-      break;
-    case MessageContentType::Dice:
-      break;
-    case MessageContentType::ProximityAlertTriggered: {
-      const auto *content = static_cast<const MessageProximityAlertTriggered *>(message_content);
-      vector<UserId> user_ids;
-      if (content->traveler_dialog_id.get_type() == DialogType::User) {
-        user_ids.push_back(content->traveler_dialog_id.get_user_id());
-      }
-      if (content->watcher_dialog_id.get_type() == DialogType::User) {
-        user_ids.push_back(content->watcher_dialog_id.get_user_id());
-      }
-      return user_ids;
-    }
-    case MessageContentType::GroupCall:
-      break;
-    case MessageContentType::InviteToGroupCall: {
-      const auto *content = static_cast<const MessageInviteToGroupCall *>(message_content);
-      return content->user_ids;
-    }
-    case MessageContentType::ChatSetTheme:
-      break;
-    case MessageContentType::WebViewDataSent:
-      break;
-    case MessageContentType::WebViewDataReceived:
-      break;
-    case MessageContentType::GiftPremium:
-      break;
-    case MessageContentType::TopicCreate:
-      break;
-    case MessageContentType::TopicEdit:
-      break;
-    case MessageContentType::SuggestProfilePhoto:
-      break;
-    case MessageContentType::WriteAccessAllowed:
-      break;
-    case MessageContentType::RequestedDialog:
-      break;
-    case MessageContentType::WebViewWriteAccessAllowed:
-      break;
-    case MessageContentType::SetBackground:
-      break;
-    case MessageContentType::Story: {
-      const auto *content = static_cast<const MessageStory *>(message_content);
-      auto dialog_id = content->story_full_id.get_dialog_id();
-      if (dialog_id.get_type() == DialogType::User) {
-        return {dialog_id.get_user_id()};
-      }
-      break;
-    }
-    case MessageContentType::WriteAccessAllowedByRequest:
-      break;
-    case MessageContentType::GiftCode:
-      break;
-    case MessageContentType::Giveaway:
-      break;
-    case MessageContentType::GiveawayLaunch:
-      break;
-    case MessageContentType::GiveawayResults:
-      break;
-    case MessageContentType::GiveawayWinners: {
-      const auto *content = static_cast<const MessageGiveawayWinners *>(message_content);
-      return content->winner_user_ids;
-    }
-    case MessageContentType::ExpiredVideoNote:
-      break;
-    case MessageContentType::ExpiredVoiceNote:
-      break;
-    case MessageContentType::BoostApply:
-      break;
-    case MessageContentType::DialogShared:
-      // private chats only
-      break;
-    case MessageContentType::PaidMedia:
-      break;
-    case MessageContentType::PaymentRefunded:
-      // private chats only
-      break;
-    case MessageContentType::GiftStars:
-      break;
-    case MessageContentType::PrizeStars:
-      // private chats only
-      break;
-    case MessageContentType::StarGift:
-      // private chats only
-      break;
-    case MessageContentType::StarGiftUnique:
-      // private chats only
-      break;
-    case MessageContentType::PaidMessagesRefunded:
-      break;
-    case MessageContentType::PaidMessagesPrice:
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return get_formatted_text_user_ids(get_message_content_text(message_content));
-}
-
-vector<ChannelId> get_message_content_min_channel_ids(const Td *td, const MessageContent *message_content) {
-  CHECK(message_content != nullptr);
-  switch (message_content->get_type()) {
-    case MessageContentType::Text: {
-      const auto *content = static_cast<const MessageText *>(message_content);
-      if (content->web_page_id.is_valid()) {
-        return td->web_pages_manager_->get_web_page_channel_ids(content->web_page_id);
-      }
-      break;
-    }
-    case MessageContentType::ProximityAlertTriggered: {
-      const auto *content = static_cast<const MessageProximityAlertTriggered *>(message_content);
-      vector<ChannelId> channel_ids;
-      if (content->traveler_dialog_id.get_type() == DialogType::Channel) {
-        channel_ids.push_back(content->traveler_dialog_id.get_channel_id());
-      }
-      if (content->watcher_dialog_id.get_type() == DialogType::Channel) {
-        channel_ids.push_back(content->watcher_dialog_id.get_channel_id());
-      }
-      return channel_ids;
-    }
-    case MessageContentType::Story: {
-      const auto *content = static_cast<const MessageStory *>(message_content);
-      auto dialog_id = content->story_full_id.get_dialog_id();
-      if (dialog_id.get_type() == DialogType::Channel) {
-        return {dialog_id.get_channel_id()};
-      }
-      break;
-    }
-    case MessageContentType::Giveaway: {
-      const auto *content = static_cast<const MessageGiveaway *>(message_content);
-      return content->giveaway_parameters.get_channel_ids();
-    }
-    case MessageContentType::GiveawayWinners: {
-      const auto *content = static_cast<const MessageGiveawayWinners *>(message_content);
-      return {content->boosted_channel_id};
-    }
-    default:
-      break;
-  }
-  return {};
-}
-
-vector<UserId> get_message_content_added_user_ids(const MessageContent *content) {
-  CHECK(content->get_type() == MessageContentType::ChatAddUsers);
-  return static_cast<const MessageChatAddUsers *>(content)->user_ids;
-}
-
-UserId get_message_content_deleted_user_id(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::ChatDeleteUser:
-      return static_cast<const MessageChatDeleteUser *>(content)->user_id;
-    default:
-      return UserId();
-  }
-}
-
-int32 get_message_content_live_location_period(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::LiveLocation:
-      return static_cast<const MessageLiveLocation *>(content)->period;
-    default:
-      return 0;
-  }
-}
-
-bool get_message_content_poll_is_anonymous(const Td *td, const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Poll:
-      return td->poll_manager_->get_poll_is_anonymous(static_cast<const MessagePoll *>(content)->poll_id);
-    default:
-      return false;
-  }
-}
-
-bool get_message_content_poll_is_closed(const Td *td, const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Poll:
-      return td->poll_manager_->get_poll_is_closed(static_cast<const MessagePoll *>(content)->poll_id);
-    default:
-      return true;
-  }
-}
-
-const Venue *get_message_content_venue(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Venue:
-      return &static_cast<const MessageVenue *>(content)->venue;
-    default:
-      return nullptr;
-  }
-}
-
-bool has_message_content_web_page(const MessageContent *content) {
-  if (content->get_type() == MessageContentType::Text) {
-    return static_cast<const MessageText *>(content)->web_page_id.is_valid();
-  }
-  return false;
-}
-
-void remove_message_content_web_page(MessageContent *content) {
-  CHECK(content->get_type() == MessageContentType::Text);
-  auto message_text = static_cast<MessageText *>(content);
-  message_text->web_page_id = WebPageId();
-  message_text->force_small_media = false;
-  message_text->force_large_media = false;
-  message_text->skip_web_page_confirmation = false;
-  message_text->web_page_url = string();
-}
-
-bool can_message_content_have_media_timestamp(const MessageContent *content) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Audio:
-    case MessageContentType::Story:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-      return true;
-    case MessageContentType::Invoice: {
-      const auto *m = static_cast<const MessageInvoice *>(content);
-      return m->input_invoice.has_media_timestamp();
-    }
-    default:
-      return has_message_content_web_page(content);
-  }
-}
-
-void set_message_content_poll_answer(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                                     vector<int32> &&option_ids, Promise<Unit> &&promise) {
-  CHECK(content->get_type() == MessageContentType::Poll);
-  td->poll_manager_->set_poll_answer(static_cast<const MessagePoll *>(content)->poll_id, message_full_id,
-                                     std::move(option_ids), std::move(promise));
-}
-
-void get_message_content_poll_voters(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                                     int32 option_id, int32 offset, int32 limit,
-                                     Promise<td_api::object_ptr<td_api::messageSenders>> &&promise) {
-  CHECK(content->get_type() == MessageContentType::Poll);
-  td->poll_manager_->get_poll_voters(static_cast<const MessagePoll *>(content)->poll_id, message_full_id, option_id,
-                                     offset, limit, std::move(promise));
-}
-
-void stop_message_content_poll(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                               unique_ptr<ReplyMarkup> &&reply_markup, Promise<Unit> &&promise) {
-  CHECK(content->get_type() == MessageContentType::Poll);
-  td->poll_manager_->stop_poll(static_cast<const MessagePoll *>(content)->poll_id, message_full_id,
-                               std::move(reply_markup), std::move(promise));
-}
-
-static void merge_location_access_hash(const Location &first, const Location &second) {
-  if (second.get_access_hash() != 0) {
-    first.set_access_hash(second.get_access_hash());
-  } else {
-    second.set_access_hash(first.get_access_hash());
-  }
-}
-
-static bool need_message_text_changed_warning(const MessageText *old_content, const MessageText *new_content) {
-  const int32 MAX_CUSTOM_ENTITIES_COUNT = 100;  // server-side limit
-  if (old_content->text.entities.size() > MAX_CUSTOM_ENTITIES_COUNT) {
-    return false;
-  }
-  if (new_content->text.text == "Unsupported characters" ||
-      new_content->text.text == "This channel is blocked because it was used to spread pornographic content." ||
-      begins_with(new_content->text.text,
-                  "This group has been temporarily suspended to give its moderators time to clean up after users who "
-                  "posted illegal pornographic content.")) {
-    // message contained unsupported characters or is restricted, text is replaced
-    return false;
-  }
-  if (/* old_message->message_id.is_yet_unsent() && */ !old_content->text.entities.empty() &&
-      old_content->text.entities[0].offset == 0 &&
-      (new_content->text.entities.empty() || new_content->text.entities[0] != old_content->text.entities[0]) &&
-      old_content->text.text != new_content->text.text && ends_with(old_content->text.text, new_content->text.text)) {
-    // server has deleted first entity and left-trimed the message
-    return false;
-  }
-  return true;
-}
-
-static bool need_message_entities_changed_warning(const vector<MessageEntity> &old_entities,
-                                                  const vector<MessageEntity> &new_entities) {
-  size_t old_pos = 0;
-  size_t new_pos = 0;
-  // compare entities, skipping some known to be different
-  while (old_pos < old_entities.size() || new_pos < new_entities.size()) {
-    // TODO remove after find_phone_numbers is implemented
-    while (new_pos < new_entities.size() && new_entities[new_pos].type == MessageEntity::Type::PhoneNumber) {
-      new_pos++;
-    }
-
-    if (old_pos < old_entities.size() && new_pos < new_entities.size() &&
-        old_entities[old_pos] == new_entities[new_pos]) {
-      old_pos++;
-      new_pos++;
-      continue;
-    }
-    if (old_pos < old_entities.size() && new_pos < new_entities.size() &&
-        (old_entities[old_pos].type == MessageEntity::Type::Pre ||
-         old_entities[old_pos].type == MessageEntity::Type::PreCode) &&
-        new_entities[new_pos].type == MessageEntity::Type::PreCode && old_entities[old_pos].argument.empty() &&
-        old_entities[old_pos].offset == new_entities[new_pos].offset &&
-        old_entities[old_pos].length == new_entities[new_pos].length) {
-      // server can add recognized language code
-      old_pos++;
-      new_pos++;
-      continue;
-    }
-
-    if (old_pos < old_entities.size() && (old_entities[old_pos].type == MessageEntity::Type::MentionName ||
-                                          old_entities[old_pos].type == MessageEntity::Type::CustomEmoji)) {
-      // server can delete some MentionName and CustomEmoji entities
-      old_pos++;
-      continue;
-    }
-
-    if (old_pos < old_entities.size() || new_pos < new_entities.size()) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-void merge_message_contents(Td *td, const MessageContent *old_content, MessageContent *new_content,
-                            bool need_message_changed_warning, DialogId dialog_id, bool need_merge_files,
-                            bool &is_content_changed, bool &need_update) {
-  MessageContentType content_type = new_content->get_type();
-  CHECK(old_content->get_type() == content_type);
-
-  switch (content_type) {
-    case MessageContentType::Text: {
-      const auto *old_ = static_cast<const MessageText *>(old_content);
-      const auto *new_ = static_cast<const MessageText *>(new_content);
-      auto get_content_object = [td, dialog_id](const MessageContent *content) {
-        return to_string(get_message_content_object(content, td, dialog_id, MessageId(), false, DialogId(), -1, false,
-                                                    false, std::numeric_limits<int32>::max(), false, false));
-      };
-      if (old_->text.text != new_->text.text) {
-        if (need_message_changed_warning && need_message_text_changed_warning(old_, new_)) {
-          LOG(ERROR) << "Message text has changed for a message in " << dialog_id << " from "
-                     << get_content_object(old_content) << " to " << get_content_object(new_content);
-        }
-      }
-      if (old_->text.entities != new_->text.entities) {
-        if (need_message_changed_warning && need_message_text_changed_warning(old_, new_) &&
-            need_message_entities_changed_warning(old_->text.entities, new_->text.entities) &&
-            td->option_manager_->get_option_integer("session_count") <= 1) {
-          LOG(WARNING) << "Entities have changed for a message in " << dialog_id << " from "
-                       << get_content_object(old_content) << " to " << get_content_object(new_content);
-        }
-      }
-      break;
-    }
-    case MessageContentType::Animation: {
-      const auto *old_ = static_cast<const MessageAnimation *>(old_content);
-      const auto *new_ = static_cast<const MessageAnimation *>(new_content);
-      if (old_->file_id != new_->file_id && need_merge_files) {
-        td->animations_manager_->merge_animations(new_->file_id, old_->file_id);
-      }
-      break;
-    }
-    case MessageContentType::Audio: {
-      const auto *old_ = static_cast<const MessageAudio *>(old_content);
-      const auto *new_ = static_cast<const MessageAudio *>(new_content);
-      if (old_->file_id != new_->file_id && need_merge_files) {
-        td->audios_manager_->merge_audios(new_->file_id, old_->file_id);
-      }
-      break;
-    }
-    case MessageContentType::Document: {
-      const auto *old_ = static_cast<const MessageDocument *>(old_content);
-      const auto *new_ = static_cast<const MessageDocument *>(new_content);
-      if (old_->file_id != new_->file_id && need_merge_files) {
-        td->documents_manager_->merge_documents(new_->file_id, old_->file_id);
-      }
-      break;
-    }
-    case MessageContentType::Invoice: {
-      const auto *old_ = static_cast<const MessageInvoice *>(old_content);
-      auto *new_ = static_cast<MessageInvoice *>(new_content);
-      new_->input_invoice.update_from(old_->input_invoice);
-      break;
-    }
-    case MessageContentType::LiveLocation: {
-      const auto *old_ = static_cast<const MessageLiveLocation *>(old_content);
-      const auto *new_ = static_cast<const MessageLiveLocation *>(new_content);
-      if (old_->location.get_access_hash() != new_->location.get_access_hash()) {
-        merge_location_access_hash(old_->location, new_->location);
-      }
-      break;
-    }
-    case MessageContentType::Location: {
-      const auto *old_ = static_cast<const MessageLocation *>(old_content);
-      const auto *new_ = static_cast<const MessageLocation *>(new_content);
-      if (old_->location.get_access_hash() != new_->location.get_access_hash()) {
-        merge_location_access_hash(old_->location, new_->location);
-      }
-      break;
-    }
-    case MessageContentType::PaidMedia: {
-      const auto *old_ = static_cast<const MessagePaidMedia *>(old_content);
-      auto *new_ = static_cast<MessagePaidMedia *>(new_content);
-      if (old_->media.size() != new_->media.size()) {
-        LOG(ERROR) << "Had " << old_->media.size() << " paid media, but now have " << new_->media.size();
-      } else {
-        for (size_t i = 0; i < old_->media.size(); i++) {
-          old_->media[i].merge_files(td, new_->media[i], dialog_id, need_merge_files, is_content_changed, need_update);
-        }
-      }
-      break;
-    }
-    case MessageContentType::Photo: {
-      const auto *old_ = static_cast<const MessagePhoto *>(old_content);
-      auto *new_ = static_cast<MessagePhoto *>(new_content);
-      merge_photos(td, &old_->photo, &new_->photo, dialog_id, need_merge_files, is_content_changed, need_update);
-      break;
-    }
-    case MessageContentType::Sticker: {
-      const auto *old_ = static_cast<const MessageSticker *>(old_content);
-      const auto *new_ = static_cast<const MessageSticker *>(new_content);
-      if (old_->file_id != new_->file_id && need_merge_files) {
-        td->stickers_manager_->merge_stickers(new_->file_id, old_->file_id);
-      }
-      break;
-    }
-    case MessageContentType::Venue: {
-      const auto *old_ = static_cast<const MessageVenue *>(old_content);
-      const auto *new_ = static_cast<const MessageVenue *>(new_content);
-      if (old_->venue.location().get_access_hash() != new_->venue.location().get_access_hash()) {
-        merge_location_access_hash(old_->venue.location(), new_->venue.location());
-      }
-      break;
-    }
-    case MessageContentType::Video: {
-      const auto *old_ = static_cast<const MessageVideo *>(old_content);
-      const auto *new_ = static_cast<const MessageVideo *>(new_content);
-      if (old_->file_id != new_->file_id && need_merge_files) {
-        td->videos_manager_->merge_videos(new_->file_id, old_->file_id);
-      }
-      break;
-    }
-    case MessageContentType::VideoNote: {
-      const auto *old_ = static_cast<const MessageVideoNote *>(old_content);
-      auto *new_ = static_cast<MessageVideoNote *>(new_content);
-      if (old_->file_id != new_->file_id && need_merge_files) {
-        td->video_notes_manager_->merge_video_notes(new_->file_id, old_->file_id);
-      }
-      if (old_->is_viewed) {
-        new_->is_viewed = true;
-      }
-      break;
-    }
-    case MessageContentType::VoiceNote: {
-      const auto *old_ = static_cast<const MessageVoiceNote *>(old_content);
-      auto *new_ = static_cast<MessageVoiceNote *>(new_content);
-      if (old_->file_id != new_->file_id && need_merge_files) {
-        td->voice_notes_manager_->merge_voice_notes(new_->file_id, old_->file_id);
-      }
-      if (old_->is_listened) {
-        new_->is_listened = true;
-      }
-      break;
-    }
-    case MessageContentType::Contact:
-    case MessageContentType::Game:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::Unsupported:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::Story:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-bool merge_message_content_file_id(Td *td, MessageContent *message_content, FileId new_file_id) {
-  if (!new_file_id.is_valid()) {
-    return false;
-  }
-
-  // secret chats only
-  LOG(INFO) << "Merge message content of a message with file " << new_file_id;
-  MessageContentType content_type = message_content->get_type();
-  switch (content_type) {
-    case MessageContentType::Animation: {
-      auto content = static_cast<MessageAnimation *>(message_content);
-      if (new_file_id != content->file_id) {
-        td->animations_manager_->merge_animations(new_file_id, content->file_id);
-        content->file_id = new_file_id;
-        return true;
-      }
-      break;
-    }
-    case MessageContentType::Audio: {
-      auto content = static_cast<MessageAudio *>(message_content);
-      if (new_file_id != content->file_id) {
-        td->audios_manager_->merge_audios(new_file_id, content->file_id);
-        content->file_id = new_file_id;
-        return true;
-      }
-      break;
-    }
-    case MessageContentType::Document: {
-      auto content = static_cast<MessageDocument *>(message_content);
-      if (new_file_id != content->file_id) {
-        td->documents_manager_->merge_documents(new_file_id, content->file_id);
-        content->file_id = new_file_id;
-        return true;
-      }
-      break;
-    }
-    case MessageContentType::Photo: {
-      auto content = static_cast<MessagePhoto *>(message_content);
-      Photo *photo = &content->photo;
-      if (!photo->photos.empty() && photo->photos.back().type == 'i') {
-        FileId &old_file_id = photo->photos.back().file_id;
-        if (old_file_id != new_file_id) {
-          LOG_STATUS(td->file_manager_->merge(new_file_id, old_file_id));
-          old_file_id = new_file_id;
-          return true;
-        }
-      }
-      break;
-    }
-    case MessageContentType::Sticker: {
-      auto content = static_cast<MessageSticker *>(message_content);
-      if (new_file_id != content->file_id) {
-        td->stickers_manager_->merge_stickers(new_file_id, content->file_id);
-        content->file_id = new_file_id;
-        return true;
-      }
-      break;
-    }
-    case MessageContentType::Video: {
-      auto content = static_cast<MessageVideo *>(message_content);
-      if (new_file_id != content->file_id) {
-        td->videos_manager_->merge_videos(new_file_id, content->file_id);
-        content->file_id = new_file_id;
-        return true;
-      }
-      break;
-    }
-    case MessageContentType::VideoNote: {
-      auto content = static_cast<MessageVideoNote *>(message_content);
-      if (new_file_id != content->file_id) {
-        td->video_notes_manager_->merge_video_notes(new_file_id, content->file_id);
-        content->file_id = new_file_id;
-        return true;
-      }
-      break;
-    }
-    case MessageContentType::VoiceNote: {
-      auto content = static_cast<MessageVoiceNote *>(message_content);
-      if (new_file_id != content->file_id) {
-        td->voice_notes_manager_->merge_voice_notes(new_file_id, content->file_id);
-        content->file_id = new_file_id;
-        return true;
-      }
-      break;
-    }
-    case MessageContentType::Contact:
-    case MessageContentType::Game:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Story:
-    case MessageContentType::Text:
-    case MessageContentType::Venue:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      LOG(ERROR) << "Receive new file " << new_file_id << " in a sent message of the type " << content_type;
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return false;
-}
-
-void compare_message_contents(Td *td, const MessageContent *old_content, const MessageContent *new_content,
-                              bool &is_content_changed, bool &need_update) {
-  if (old_content == nullptr) {
-    if (new_content != nullptr) {
-      need_update = true;
-    }
-    return;
-  }
-  MessageContentType content_type = old_content->get_type();
-  if (new_content == nullptr || new_content->get_type() != content_type) {
-    need_update = true;
-    return;
-  }
-
-  switch (content_type) {
-    case MessageContentType::Text: {
-      const auto *lhs = static_cast<const MessageText *>(old_content);
-      const auto *rhs = static_cast<const MessageText *>(new_content);
-      if (lhs->text.text != rhs->text.text || lhs->text.entities != rhs->text.entities ||
-          lhs->web_page_url != rhs->web_page_url || lhs->force_small_media != rhs->force_small_media ||
-          lhs->force_large_media != rhs->force_large_media) {
-        need_update = true;
-      } else if (lhs->web_page_id != rhs->web_page_id ||
-                 lhs->skip_web_page_confirmation != rhs->skip_web_page_confirmation) {
-        is_content_changed = true;
-        if (td == nullptr || td->web_pages_manager_->have_web_page(lhs->web_page_id) ||
-            td->web_pages_manager_->have_web_page(rhs->web_page_id)) {
-          need_update = true;
-        }
-      }
-      break;
-    }
-    case MessageContentType::Animation: {
-      const auto *lhs = static_cast<const MessageAnimation *>(old_content);
-      const auto *rhs = static_cast<const MessageAnimation *>(new_content);
-      if (lhs->file_id != rhs->file_id || lhs->caption != rhs->caption || lhs->has_spoiler != rhs->has_spoiler) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Audio: {
-      const auto *lhs = static_cast<const MessageAudio *>(old_content);
-      const auto *rhs = static_cast<const MessageAudio *>(new_content);
-      if (lhs->file_id != rhs->file_id || lhs->caption != rhs->caption) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Contact: {
-      const auto *lhs = static_cast<const MessageContact *>(old_content);
-      const auto *rhs = static_cast<const MessageContact *>(new_content);
-      if (lhs->contact != rhs->contact) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Document: {
-      const auto *lhs = static_cast<const MessageDocument *>(old_content);
-      const auto *rhs = static_cast<const MessageDocument *>(new_content);
-      if (lhs->file_id != rhs->file_id || lhs->caption != rhs->caption) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Game: {
-      const auto *lhs = static_cast<const MessageGame *>(old_content);
-      const auto *rhs = static_cast<const MessageGame *>(new_content);
-      if (lhs->game != rhs->game) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Invoice: {
-      const auto *lhs = static_cast<const MessageInvoice *>(old_content);
-      const auto *rhs = static_cast<const MessageInvoice *>(new_content);
-      if (lhs->input_invoice != rhs->input_invoice) {
-        need_update = true;
-      } else if (lhs->input_invoice.is_equal_but_different(rhs->input_invoice)) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    case MessageContentType::LiveLocation: {
-      const auto *lhs = static_cast<const MessageLiveLocation *>(old_content);
-      const auto *rhs = static_cast<const MessageLiveLocation *>(new_content);
-      if (lhs->location != rhs->location || lhs->period != rhs->period || lhs->heading != rhs->heading ||
-          lhs->proximity_alert_radius != rhs->proximity_alert_radius) {
-        need_update = true;
-      } else if (lhs->location.get_access_hash() != rhs->location.get_access_hash()) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    case MessageContentType::Location: {
-      const auto *lhs = static_cast<const MessageLocation *>(old_content);
-      const auto *rhs = static_cast<const MessageLocation *>(new_content);
-      if (lhs->location != rhs->location) {
-        need_update = true;
-      } else if (lhs->location.get_access_hash() != rhs->location.get_access_hash()) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    case MessageContentType::Photo: {
-      const auto *lhs = static_cast<const MessagePhoto *>(old_content);
-      const auto *rhs = static_cast<const MessagePhoto *>(new_content);
-      if (lhs->caption != rhs->caption || lhs->has_spoiler != rhs->has_spoiler) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Sticker: {
-      const auto *lhs = static_cast<const MessageSticker *>(old_content);
-      const auto *rhs = static_cast<const MessageSticker *>(new_content);
-      if (lhs->file_id != rhs->file_id || lhs->is_premium != rhs->is_premium) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Venue: {
-      const auto *lhs = static_cast<const MessageVenue *>(old_content);
-      const auto *rhs = static_cast<const MessageVenue *>(new_content);
-      if (lhs->venue != rhs->venue) {
-        need_update = true;
-      } else if (lhs->venue.location().get_access_hash() != rhs->venue.location().get_access_hash()) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    case MessageContentType::Video: {
-      const auto *lhs = static_cast<const MessageVideo *>(old_content);
-      const auto *rhs = static_cast<const MessageVideo *>(new_content);
-      if (lhs->file_id != rhs->file_id || lhs->alternative_file_ids != rhs->alternative_file_ids ||
-          lhs->hls_file_ids != rhs->hls_file_ids || lhs->cover != rhs->cover ||
-          lhs->start_timestamp != rhs->start_timestamp || lhs->caption != rhs->caption ||
-          lhs->has_spoiler != rhs->has_spoiler) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::VideoNote: {
-      const auto *lhs = static_cast<const MessageVideoNote *>(old_content);
-      const auto *rhs = static_cast<const MessageVideoNote *>(new_content);
-      if (lhs->file_id != rhs->file_id || lhs->is_viewed != rhs->is_viewed) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::VoiceNote: {
-      const auto *lhs = static_cast<const MessageVoiceNote *>(old_content);
-      const auto *rhs = static_cast<const MessageVoiceNote *>(new_content);
-      if (lhs->file_id != rhs->file_id || lhs->caption != rhs->caption || lhs->is_listened != rhs->is_listened) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChatCreate: {
-      const auto *lhs = static_cast<const MessageChatCreate *>(old_content);
-      const auto *rhs = static_cast<const MessageChatCreate *>(new_content);
-      if (lhs->title != rhs->title || lhs->participant_user_ids != rhs->participant_user_ids) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChatChangeTitle: {
-      const auto *lhs = static_cast<const MessageChatChangeTitle *>(old_content);
-      const auto *rhs = static_cast<const MessageChatChangeTitle *>(new_content);
-      if (lhs->title != rhs->title) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChatChangePhoto: {
-      const auto *lhs = static_cast<const MessageChatChangePhoto *>(old_content);
-      const auto *rhs = static_cast<const MessageChatChangePhoto *>(new_content);
-      if (lhs->photo != rhs->photo) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChatDeletePhoto:
-      break;
-    case MessageContentType::ChatDeleteHistory:
-      break;
-    case MessageContentType::ChatAddUsers: {
-      const auto *lhs = static_cast<const MessageChatAddUsers *>(old_content);
-      const auto *rhs = static_cast<const MessageChatAddUsers *>(new_content);
-      if (lhs->user_ids != rhs->user_ids) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChatJoinedByLink: {
-      auto lhs = static_cast<const MessageChatJoinedByLink *>(old_content);
-      auto rhs = static_cast<const MessageChatJoinedByLink *>(new_content);
-      if (lhs->is_approved != rhs->is_approved) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChatDeleteUser: {
-      const auto *lhs = static_cast<const MessageChatDeleteUser *>(old_content);
-      const auto *rhs = static_cast<const MessageChatDeleteUser *>(new_content);
-      if (lhs->user_id != rhs->user_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChatMigrateTo: {
-      const auto *lhs = static_cast<const MessageChatMigrateTo *>(old_content);
-      const auto *rhs = static_cast<const MessageChatMigrateTo *>(new_content);
-      if (lhs->migrated_to_channel_id != rhs->migrated_to_channel_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChannelCreate: {
-      const auto *lhs = static_cast<const MessageChannelCreate *>(old_content);
-      const auto *rhs = static_cast<const MessageChannelCreate *>(new_content);
-      if (lhs->title != rhs->title) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ChannelMigrateFrom: {
-      const auto *lhs = static_cast<const MessageChannelMigrateFrom *>(old_content);
-      const auto *rhs = static_cast<const MessageChannelMigrateFrom *>(new_content);
-      if (lhs->title != rhs->title || lhs->migrated_from_chat_id != rhs->migrated_from_chat_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::PinMessage: {
-      const auto *lhs = static_cast<const MessagePinMessage *>(old_content);
-      const auto *rhs = static_cast<const MessagePinMessage *>(new_content);
-      if (lhs->message_id != rhs->message_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::GameScore: {
-      const auto *lhs = static_cast<const MessageGameScore *>(old_content);
-      const auto *rhs = static_cast<const MessageGameScore *>(new_content);
-      if (lhs->game_message_id != rhs->game_message_id || lhs->game_id != rhs->game_id || lhs->score != rhs->score) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ScreenshotTaken:
-      break;
-    case MessageContentType::ChatSetTtl: {
-      const auto *lhs = static_cast<const MessageChatSetTtl *>(old_content);
-      const auto *rhs = static_cast<const MessageChatSetTtl *>(new_content);
-      if (lhs->ttl != rhs->ttl || lhs->from_user_id != rhs->from_user_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Call: {
-      const auto *lhs = static_cast<const MessageCall *>(old_content);
-      const auto *rhs = static_cast<const MessageCall *>(new_content);
-      if (lhs->duration != rhs->duration || lhs->discard_reason != rhs->discard_reason ||
-          lhs->is_video != rhs->is_video) {
-        need_update = true;
-      } else if (lhs->call_id != rhs->call_id) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    case MessageContentType::PaymentSuccessful: {
-      const auto *lhs = static_cast<const MessagePaymentSuccessful *>(old_content);
-      const auto *rhs = static_cast<const MessagePaymentSuccessful *>(new_content);
-      if (lhs->invoice_dialog_id != rhs->invoice_dialog_id || lhs->invoice_message_id != rhs->invoice_message_id ||
-          lhs->currency != rhs->currency || lhs->total_amount != rhs->total_amount ||
-          lhs->invoice_payload != rhs->invoice_payload || lhs->shipping_option_id != rhs->shipping_option_id ||
-          lhs->telegram_payment_charge_id != rhs->telegram_payment_charge_id ||
-          lhs->provider_payment_charge_id != rhs->provider_payment_charge_id ||
-          ((lhs->order_info != nullptr || rhs->order_info != nullptr) &&
-           (lhs->order_info == nullptr || rhs->order_info == nullptr || *lhs->order_info != *rhs->order_info)) ||
-          lhs->is_recurring != rhs->is_recurring || lhs->is_first_recurring != rhs->is_first_recurring ||
-          lhs->subscription_until_date != rhs->subscription_until_date) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ContactRegistered:
-      break;
-    case MessageContentType::ExpiredPhoto:
-      break;
-    case MessageContentType::ExpiredVideo:
-      break;
-    case MessageContentType::CustomServiceAction: {
-      const auto *lhs = static_cast<const MessageCustomServiceAction *>(old_content);
-      const auto *rhs = static_cast<const MessageCustomServiceAction *>(new_content);
-      if (lhs->message != rhs->message) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::WebsiteConnected: {
-      const auto *lhs = static_cast<const MessageWebsiteConnected *>(old_content);
-      const auto *rhs = static_cast<const MessageWebsiteConnected *>(new_content);
-      if (lhs->domain_name != rhs->domain_name) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::PassportDataSent: {
-      const auto *lhs = static_cast<const MessagePassportDataSent *>(old_content);
-      const auto *rhs = static_cast<const MessagePassportDataSent *>(new_content);
-      if (lhs->types != rhs->types) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::PassportDataReceived: {
-      const auto *lhs = static_cast<const MessagePassportDataReceived *>(old_content);
-      const auto *rhs = static_cast<const MessagePassportDataReceived *>(new_content);
-      if (lhs->values != rhs->values || lhs->credentials != rhs->credentials) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Poll: {
-      const auto *lhs = static_cast<const MessagePoll *>(old_content);
-      const auto *rhs = static_cast<const MessagePoll *>(new_content);
-      if (lhs->poll_id != rhs->poll_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Dice: {
-      const auto *lhs = static_cast<const MessageDice *>(old_content);
-      const auto *rhs = static_cast<const MessageDice *>(new_content);
-      if (lhs->emoji != rhs->emoji || lhs->dice_value != rhs->dice_value) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ProximityAlertTriggered: {
-      const auto *lhs = static_cast<const MessageProximityAlertTriggered *>(old_content);
-      const auto *rhs = static_cast<const MessageProximityAlertTriggered *>(new_content);
-      if (lhs->traveler_dialog_id != rhs->traveler_dialog_id || lhs->watcher_dialog_id != rhs->watcher_dialog_id ||
-          lhs->distance != rhs->distance) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::GroupCall: {
-      const auto *lhs = static_cast<const MessageGroupCall *>(old_content);
-      const auto *rhs = static_cast<const MessageGroupCall *>(new_content);
-      if (lhs->input_group_call_id != rhs->input_group_call_id || lhs->duration != rhs->duration ||
-          lhs->schedule_date != rhs->schedule_date) {
-        need_update = true;
-      } else if (!lhs->input_group_call_id.is_identical(rhs->input_group_call_id)) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    case MessageContentType::InviteToGroupCall: {
-      const auto *lhs = static_cast<const MessageInviteToGroupCall *>(old_content);
-      const auto *rhs = static_cast<const MessageInviteToGroupCall *>(new_content);
-      if (lhs->input_group_call_id != rhs->input_group_call_id || lhs->user_ids != rhs->user_ids) {
-        need_update = true;
-      } else if (!lhs->input_group_call_id.is_identical(rhs->input_group_call_id)) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    case MessageContentType::ChatSetTheme: {
-      const auto *lhs = static_cast<const MessageChatSetTheme *>(old_content);
-      const auto *rhs = static_cast<const MessageChatSetTheme *>(new_content);
-      if (lhs->emoji != rhs->emoji) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::WebViewDataSent: {
-      const auto *lhs = static_cast<const MessageWebViewDataSent *>(old_content);
-      const auto *rhs = static_cast<const MessageWebViewDataSent *>(new_content);
-      if (lhs->button_text != rhs->button_text) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::WebViewDataReceived: {
-      const auto *lhs = static_cast<const MessageWebViewDataReceived *>(old_content);
-      const auto *rhs = static_cast<const MessageWebViewDataReceived *>(new_content);
-      if (lhs->button_text != rhs->button_text || lhs->data != rhs->data) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::GiftPremium: {
-      const auto *lhs = static_cast<const MessageGiftPremium *>(old_content);
-      const auto *rhs = static_cast<const MessageGiftPremium *>(new_content);
-      if (lhs->text != rhs->text || lhs->currency != rhs->currency || lhs->amount != rhs->amount ||
-          lhs->crypto_currency != rhs->crypto_currency || lhs->crypto_amount != rhs->crypto_amount ||
-          lhs->months != rhs->months) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::TopicCreate: {
-      const auto *lhs = static_cast<const MessageTopicCreate *>(old_content);
-      const auto *rhs = static_cast<const MessageTopicCreate *>(new_content);
-      if (lhs->title != rhs->title || lhs->icon != rhs->icon) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::TopicEdit: {
-      const auto *lhs = static_cast<const MessageTopicEdit *>(old_content);
-      const auto *rhs = static_cast<const MessageTopicEdit *>(new_content);
-      if (lhs->edited_data != rhs->edited_data) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Unsupported: {
-      const auto *lhs = static_cast<const MessageUnsupported *>(old_content);
-      const auto *rhs = static_cast<const MessageUnsupported *>(new_content);
-      if (lhs->version != rhs->version) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    case MessageContentType::SuggestProfilePhoto: {
-      const auto *lhs = static_cast<const MessageSuggestProfilePhoto *>(old_content);
-      const auto *rhs = static_cast<const MessageSuggestProfilePhoto *>(new_content);
-      if (lhs->photo != rhs->photo) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::WriteAccessAllowed:
-      break;
-    case MessageContentType::RequestedDialog: {
-      const auto *lhs = static_cast<const MessageRequestedDialog *>(old_content);
-      const auto *rhs = static_cast<const MessageRequestedDialog *>(new_content);
-      if (lhs->shared_dialog_ids != rhs->shared_dialog_ids || lhs->button_id != rhs->button_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::WebViewWriteAccessAllowed: {
-      const auto *lhs = static_cast<const MessageWebViewWriteAccessAllowed *>(old_content);
-      const auto *rhs = static_cast<const MessageWebViewWriteAccessAllowed *>(new_content);
-      if (lhs->web_app != rhs->web_app) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::SetBackground: {
-      const auto *lhs = static_cast<const MessageSetBackground *>(old_content);
-      const auto *rhs = static_cast<const MessageSetBackground *>(new_content);
-      if (lhs->old_message_id != rhs->old_message_id || lhs->background_info != rhs->background_info ||
-          lhs->for_both != rhs->for_both) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Story: {
-      const auto *lhs = static_cast<const MessageStory *>(old_content);
-      const auto *rhs = static_cast<const MessageStory *>(new_content);
-      if (lhs->story_full_id != rhs->story_full_id || lhs->via_mention != rhs->via_mention) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::WriteAccessAllowedByRequest:
-      break;
-    case MessageContentType::GiftCode: {
-      const auto *lhs = static_cast<const MessageGiftCode *>(old_content);
-      const auto *rhs = static_cast<const MessageGiftCode *>(new_content);
-      if (lhs->creator_dialog_id != rhs->creator_dialog_id || lhs->text != rhs->text || lhs->months != rhs->months ||
-          lhs->currency != rhs->currency || lhs->amount != rhs->amount ||
-          lhs->crypto_currency != rhs->crypto_currency || lhs->crypto_amount != rhs->crypto_amount ||
-          lhs->via_giveaway != rhs->via_giveaway || lhs->is_unclaimed != rhs->is_unclaimed || lhs->code != rhs->code) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::Giveaway: {
-      const auto *lhs = static_cast<const MessageGiveaway *>(old_content);
-      const auto *rhs = static_cast<const MessageGiveaway *>(new_content);
-      if (lhs->giveaway_parameters != rhs->giveaway_parameters || lhs->quantity != rhs->quantity ||
-          lhs->months != rhs->months || lhs->star_count != rhs->star_count) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::GiveawayLaunch: {
-      const auto *lhs = static_cast<const MessageGiveawayLaunch *>(old_content);
-      const auto *rhs = static_cast<const MessageGiveawayLaunch *>(new_content);
-      if (lhs->star_count != rhs->star_count) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::GiveawayResults: {
-      const auto *lhs = static_cast<const MessageGiveawayResults *>(old_content);
-      const auto *rhs = static_cast<const MessageGiveawayResults *>(new_content);
-      if (lhs->giveaway_message_id != rhs->giveaway_message_id || lhs->winner_count != rhs->winner_count ||
-          lhs->unclaimed_count != rhs->unclaimed_count || lhs->is_star_giveaway != rhs->is_star_giveaway) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::GiveawayWinners: {
-      const auto *lhs = static_cast<const MessageGiveawayWinners *>(old_content);
-      const auto *rhs = static_cast<const MessageGiveawayWinners *>(new_content);
-      if (lhs->giveaway_message_id != rhs->giveaway_message_id || lhs->boosted_channel_id != rhs->boosted_channel_id ||
-          lhs->additional_dialog_count != rhs->additional_dialog_count || lhs->month_count != rhs->month_count ||
-          lhs->star_count != rhs->star_count || lhs->prize_description != rhs->prize_description ||
-          lhs->winners_selection_date != rhs->winners_selection_date ||
-          lhs->only_new_subscribers != rhs->only_new_subscribers || lhs->was_refunded != rhs->was_refunded ||
-          lhs->winner_count != rhs->winner_count || lhs->unclaimed_count != rhs->unclaimed_count ||
-          lhs->winner_user_ids != rhs->winner_user_ids) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::ExpiredVideoNote:
-      break;
-    case MessageContentType::ExpiredVoiceNote:
-      break;
-    case MessageContentType::BoostApply: {
-      const auto *lhs = static_cast<const MessageBoostApply *>(old_content);
-      const auto *rhs = static_cast<const MessageBoostApply *>(new_content);
-      if (lhs->boost_count != rhs->boost_count) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::DialogShared: {
-      const auto *lhs = static_cast<const MessageDialogShared *>(old_content);
-      const auto *rhs = static_cast<const MessageDialogShared *>(new_content);
-      if (lhs->shared_dialogs != rhs->shared_dialogs || lhs->button_id != rhs->button_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::PaidMedia: {
-      const auto *lhs = static_cast<const MessagePaidMedia *>(old_content);
-      const auto *rhs = static_cast<const MessagePaidMedia *>(new_content);
-      if (lhs->caption != rhs->caption || lhs->star_count != rhs->star_count ||
-          lhs->media.size() != rhs->media.size()) {
-        need_update = true;
-      } else {
-        for (size_t i = 0; i < lhs->media.size(); i++) {
-          if (lhs->media[i] != rhs->media[i]) {
-            need_update = true;
-          } else if (lhs->media[i].is_equal_but_different(rhs->media[i])) {
-            is_content_changed = true;
-          }
-        }
-        if (lhs->payload != rhs->payload) {
-          is_content_changed = true;
-        }
-      }
-      break;
-    }
-    case MessageContentType::PaymentRefunded: {
-      const auto *lhs = static_cast<const MessagePaymentRefunded *>(old_content);
-      const auto *rhs = static_cast<const MessagePaymentRefunded *>(new_content);
-      if (lhs->dialog_id != rhs->dialog_id || lhs->currency != rhs->currency ||
-          lhs->total_amount != rhs->total_amount || lhs->invoice_payload != rhs->invoice_payload ||
-          lhs->telegram_payment_charge_id != rhs->telegram_payment_charge_id ||
-          lhs->provider_payment_charge_id != rhs->provider_payment_charge_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::GiftStars: {
-      const auto *lhs = static_cast<const MessageGiftStars *>(old_content);
-      const auto *rhs = static_cast<const MessageGiftStars *>(new_content);
-      if (lhs->currency != rhs->currency || lhs->amount != rhs->amount ||
-          lhs->crypto_currency != rhs->crypto_currency || lhs->crypto_amount != rhs->crypto_amount ||
-          lhs->star_count != rhs->star_count || lhs->transaction_id != rhs->transaction_id) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::PrizeStars: {
-      const auto *lhs = static_cast<const MessagePrizeStars *>(old_content);
-      const auto *rhs = static_cast<const MessagePrizeStars *>(new_content);
-      if (lhs->star_count != rhs->star_count || lhs->transaction_id != rhs->transaction_id ||
-          lhs->boosted_dialog_id != rhs->boosted_dialog_id || lhs->giveaway_message_id != rhs->giveaway_message_id ||
-          lhs->is_unclaimed != rhs->is_unclaimed) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::StarGift: {
-      const auto *lhs = static_cast<const MessageStarGift *>(old_content);
-      const auto *rhs = static_cast<const MessageStarGift *>(new_content);
-      if (lhs->star_gift != rhs->star_gift || lhs->sender_dialog_id != rhs->sender_dialog_id ||
-          lhs->owner_dialog_id != rhs->owner_dialog_id || lhs->saved_id != rhs->saved_id || lhs->text != rhs->text ||
-          lhs->convert_star_count != rhs->convert_star_count || lhs->upgrade_star_count != rhs->upgrade_star_count ||
-          lhs->upgrade_message_id != rhs->upgrade_message_id || lhs->name_hidden != rhs->name_hidden ||
-          lhs->is_saved != rhs->is_saved || lhs->can_upgrade != rhs->can_upgrade ||
-          lhs->was_converted != rhs->was_converted || lhs->was_upgraded != rhs->was_upgraded ||
-          lhs->was_refunded != rhs->was_refunded) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::StarGiftUnique: {
-      const auto *lhs = static_cast<const MessageStarGiftUnique *>(old_content);
-      const auto *rhs = static_cast<const MessageStarGiftUnique *>(new_content);
-      if (lhs->star_gift != rhs->star_gift || lhs->sender_dialog_id != rhs->sender_dialog_id ||
-          lhs->owner_dialog_id != rhs->owner_dialog_id || lhs->saved_id != rhs->saved_id ||
-          lhs->transfer_star_count != rhs->transfer_star_count || lhs->can_export_at != rhs->can_export_at ||
-          lhs->is_saved != rhs->is_saved || lhs->is_upgrade != rhs->is_upgrade ||
-          lhs->can_transfer != rhs->can_transfer || lhs->was_transferred != rhs->was_transferred ||
-          lhs->was_refunded != rhs->was_refunded) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::PaidMessagesRefunded: {
-      const auto *lhs = static_cast<const MessagePaidMessagesRefunded *>(old_content);
-      const auto *rhs = static_cast<const MessagePaidMessagesRefunded *>(new_content);
-      if (lhs->message_count != rhs->message_count || lhs->star_count != rhs->star_count) {
-        need_update = true;
-      }
-      break;
-    }
-    case MessageContentType::PaidMessagesPrice: {
-      const auto *lhs = static_cast<const MessagePaidMessagesPrice *>(old_content);
-      const auto *rhs = static_cast<const MessagePaidMessagesPrice *>(new_content);
-      if (lhs->star_count != rhs->star_count) {
-        need_update = true;
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-static bool can_be_animated_emoji(const FormattedText &text) {
-  if (!is_emoji(text.text)) {
-    return false;
-  }
-  if (text.entities.empty()) {
-    return true;
-  }
-  if (text.entities.size() == 1 && text.entities[0].type == MessageEntity::Type::CustomEmoji &&
-      text.entities[0].offset == 0 && static_cast<size_t>(text.entities[0].length) == utf8_utf16_length(text.text) &&
-      text.entities[0].custom_emoji_id.is_valid()) {
-    return true;
-  }
-  return false;
-}
-
-static CustomEmojiId get_custom_emoji_id(const FormattedText &text) {
-  return text.entities.empty() ? CustomEmojiId() : text.entities[0].custom_emoji_id;
-}
-
-static bool need_register_message_content_for_bots(MessageContentType content_type) {
-  return content_type == MessageContentType::Poll;
-}
-
-void register_message_content(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                              const char *source) {
-  auto content_type = content->get_type();
-  if (td->auth_manager_->is_bot() && !need_register_message_content_for_bots(content_type)) {
-    return;
-  }
-  switch (content_type) {
-    case MessageContentType::Text: {
-      auto text = static_cast<const MessageText *>(content);
-      if (text->web_page_id.is_valid()) {
-        td->web_pages_manager_->register_web_page(text->web_page_id, message_full_id, source);
-      } else if (can_be_animated_emoji(text->text)) {
-        td->stickers_manager_->register_emoji(text->text.text, get_custom_emoji_id(text->text), message_full_id, {},
-                                              source);
-      }
-      return;
-    }
-    case MessageContentType::VideoNote:
-      return td->transcription_manager_->register_voice(static_cast<const MessageVideoNote *>(content)->file_id,
-                                                        content_type, message_full_id, source);
-    case MessageContentType::VoiceNote:
-      return td->transcription_manager_->register_voice(static_cast<const MessageVoiceNote *>(content)->file_id,
-                                                        content_type, message_full_id, source);
-    case MessageContentType::Poll:
-      return td->poll_manager_->register_poll(static_cast<const MessagePoll *>(content)->poll_id, message_full_id,
-                                              source);
-    case MessageContentType::Dice: {
-      auto dice = static_cast<const MessageDice *>(content);
-      return td->stickers_manager_->register_dice(dice->emoji, dice->dice_value, message_full_id, {}, source);
-    }
-    case MessageContentType::GiftPremium:
-      return td->stickers_manager_->register_premium_gift(static_cast<const MessageGiftPremium *>(content)->months, 0,
-                                                          message_full_id, source);
-    case MessageContentType::GiftCode:
-      return td->stickers_manager_->register_premium_gift(static_cast<const MessageGiftCode *>(content)->months, 0,
-                                                          message_full_id, source);
-    case MessageContentType::Giveaway: {
-      auto giveaway = static_cast<const MessageGiveaway *>(content);
-      return td->stickers_manager_->register_premium_gift(giveaway->months, giveaway->star_count, message_full_id,
-                                                          source);
-    }
-    case MessageContentType::SuggestProfilePhoto:
-      return td->user_manager_->register_suggested_profile_photo(
-          static_cast<const MessageSuggestProfilePhoto *>(content)->photo);
-    case MessageContentType::Story:
-      return td->story_manager_->register_story(static_cast<const MessageStory *>(content)->story_full_id,
-                                                message_full_id, {}, source);
-    case MessageContentType::GiftStars: {
-      auto star_count = static_cast<const MessageGiftStars *>(content)->star_count;
-      return td->stickers_manager_->register_premium_gift(0, star_count, message_full_id, source);
-    }
-    case MessageContentType::PrizeStars: {
-      auto star_count = static_cast<const MessagePrizeStars *>(content)->star_count;
-      return td->stickers_manager_->register_premium_gift(0, star_count, message_full_id, source);
-    }
-    case MessageContentType::StarGift: {
-      auto star_gift = static_cast<const MessageStarGift *>(content);
-      td->star_gift_manager_->on_get_star_gift(star_gift->star_gift, false);
-      return td->star_gift_manager_->register_gift(message_full_id, source);
-    }
-    case MessageContentType::StarGiftUnique: {
-      auto star_gift = static_cast<const MessageStarGiftUnique *>(content);
-      td->star_gift_manager_->on_get_star_gift(star_gift->star_gift, false);
-      return td->star_gift_manager_->register_gift(message_full_id, source);
-    }
-    default:
-      return;
-  }
-}
-
-void reregister_message_content(Td *td, const MessageContent *old_content, const MessageContent *new_content,
-                                MessageFullId message_full_id, const char *source) {
-  auto old_content_type = old_content->get_type();
-  auto new_content_type = new_content->get_type();
-  if (old_content_type == new_content_type) {
-    if (td->auth_manager_->is_bot() && !need_register_message_content_for_bots(new_content_type)) {
-      return;
-    }
-    switch (old_content_type) {
-      case MessageContentType::Text: {
-        auto old_text = static_cast<const MessageText *>(old_content);
-        auto new_text = static_cast<const MessageText *>(new_content);
-        if (old_text->web_page_id == new_text->web_page_id &&
-            (old_text->text == new_text->text ||
-             (!can_be_animated_emoji(old_text->text) && !can_be_animated_emoji(new_text->text)))) {
-          return;
-        }
-        break;
-      }
-      case MessageContentType::VideoNote:
-        if (static_cast<const MessageVideoNote *>(old_content)->file_id ==
-            static_cast<const MessageVideoNote *>(new_content)->file_id) {
-          return;
-        }
-        break;
-      case MessageContentType::VoiceNote:
-        if (static_cast<const MessageVoiceNote *>(old_content)->file_id ==
-            static_cast<const MessageVoiceNote *>(new_content)->file_id) {
-          return;
-        }
-        break;
-      case MessageContentType::Poll:
-        if (static_cast<const MessagePoll *>(old_content)->poll_id ==
-            static_cast<const MessagePoll *>(new_content)->poll_id) {
-          return;
-        }
-        break;
-      case MessageContentType::Dice:
-        if (static_cast<const MessageDice *>(old_content)->emoji ==
-                static_cast<const MessageDice *>(new_content)->emoji &&
-            static_cast<const MessageDice *>(old_content)->dice_value ==
-                static_cast<const MessageDice *>(new_content)->dice_value) {
-          return;
-        }
-        break;
-      case MessageContentType::GiftPremium:
-        if (static_cast<const MessageGiftPremium *>(old_content)->months ==
-            static_cast<const MessageGiftPremium *>(new_content)->months) {
-          return;
-        }
-        break;
-      case MessageContentType::GiftCode:
-        if (static_cast<const MessageGiftCode *>(old_content)->months ==
-            static_cast<const MessageGiftCode *>(new_content)->months) {
-          return;
-        }
-        break;
-      case MessageContentType::Giveaway:
-        if (static_cast<const MessageGiveaway *>(old_content)->months ==
-                static_cast<const MessageGiveaway *>(new_content)->months &&
-            static_cast<const MessageGiveaway *>(old_content)->star_count ==
-                static_cast<const MessageGiveaway *>(new_content)->star_count) {
-          return;
-        }
-        break;
-      case MessageContentType::Story:
-        if (static_cast<const MessageStory *>(old_content)->story_full_id ==
-            static_cast<const MessageStory *>(new_content)->story_full_id) {
-          return;
-        }
-        break;
-      case MessageContentType::GiftStars:
-        if (static_cast<const MessageGiftStars *>(old_content)->star_count ==
-            static_cast<const MessageGiftStars *>(new_content)->star_count) {
-          return;
-        }
-        break;
-      case MessageContentType::PrizeStars:
-        if (static_cast<const MessagePrizeStars *>(old_content)->star_count ==
-            static_cast<const MessagePrizeStars *>(new_content)->star_count) {
-          return;
-        }
-        break;
-      default:
-        return;
-    }
-  }
-  unregister_message_content(td, old_content, message_full_id, source);
-  register_message_content(td, new_content, message_full_id, source);
-}
-
-void unregister_message_content(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                                const char *source) {
-  auto content_type = content->get_type();
-  if (td->auth_manager_->is_bot() && !need_register_message_content_for_bots(content_type)) {
-    return;
-  }
-  switch (content_type) {
-    case MessageContentType::Text: {
-      auto text = static_cast<const MessageText *>(content);
-      if (text->web_page_id.is_valid()) {
-        td->web_pages_manager_->unregister_web_page(text->web_page_id, message_full_id, source);
-      } else if (can_be_animated_emoji(text->text)) {
-        td->stickers_manager_->unregister_emoji(text->text.text, get_custom_emoji_id(text->text), message_full_id, {},
-                                                source);
-      }
-      return;
-    }
-    case MessageContentType::VideoNote:
-      return td->transcription_manager_->unregister_voice(static_cast<const MessageVideoNote *>(content)->file_id,
-                                                          content_type, message_full_id, source);
-    case MessageContentType::VoiceNote:
-      return td->transcription_manager_->unregister_voice(static_cast<const MessageVoiceNote *>(content)->file_id,
-                                                          content_type, message_full_id, source);
-    case MessageContentType::Poll:
-      return td->poll_manager_->unregister_poll(static_cast<const MessagePoll *>(content)->poll_id, message_full_id,
-                                                source);
-    case MessageContentType::Dice: {
-      auto dice = static_cast<const MessageDice *>(content);
-      return td->stickers_manager_->unregister_dice(dice->emoji, dice->dice_value, message_full_id, {}, source);
-    }
-    case MessageContentType::GiftPremium:
-      return td->stickers_manager_->unregister_premium_gift(static_cast<const MessageGiftPremium *>(content)->months, 0,
-                                                            message_full_id, source);
-    case MessageContentType::GiftCode:
-      return td->stickers_manager_->unregister_premium_gift(static_cast<const MessageGiftCode *>(content)->months, 0,
-                                                            message_full_id, source);
-    case MessageContentType::Giveaway: {
-      auto giveaway = static_cast<const MessageGiveaway *>(content);
-      return td->stickers_manager_->unregister_premium_gift(giveaway->months, giveaway->star_count, message_full_id,
-                                                            source);
-    }
-    case MessageContentType::Story:
-      return td->story_manager_->unregister_story(static_cast<const MessageStory *>(content)->story_full_id,
-                                                  message_full_id, {}, source);
-    case MessageContentType::GiftStars: {
-      auto star_count = static_cast<const MessageGiftStars *>(content)->star_count;
-      return td->stickers_manager_->unregister_premium_gift(0, star_count, message_full_id, source);
-    }
-    case MessageContentType::PrizeStars: {
-      auto star_count = static_cast<const MessagePrizeStars *>(content)->star_count;
-      return td->stickers_manager_->unregister_premium_gift(0, star_count, message_full_id, source);
-    }
-    case MessageContentType::StarGift:
-      return td->star_gift_manager_->unregister_gift(message_full_id, source);
-    case MessageContentType::StarGiftUnique:
-      return td->star_gift_manager_->unregister_gift(message_full_id, source);
-    default:
-      return;
-  }
-}
-
-void register_reply_message_content(Td *td, const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Poll:
-      return td->poll_manager_->register_reply_poll(static_cast<const MessagePoll *>(content)->poll_id);
-    default:
-      return;
-  }
-}
-
-void unregister_reply_message_content(Td *td, const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Poll:
-      return td->poll_manager_->unregister_reply_poll(static_cast<const MessagePoll *>(content)->poll_id);
-    default:
-      return;
-  }
-}
-
-void register_quick_reply_message_content(Td *td, const MessageContent *content,
-                                          QuickReplyMessageFullId message_full_id, const char *source) {
-  switch (content->get_type()) {
-    case MessageContentType::Text: {
-      auto text = static_cast<const MessageText *>(content);
-      if (text->web_page_id.is_valid()) {
-        td->web_pages_manager_->register_quick_reply_web_page(text->web_page_id, message_full_id, source);
-      } else if (can_be_animated_emoji(text->text)) {
-        td->stickers_manager_->register_emoji(text->text.text, get_custom_emoji_id(text->text), {}, message_full_id,
-                                              source);
-      }
-      return;
-    }
-    case MessageContentType::Dice: {
-      auto dice = static_cast<const MessageDice *>(content);
-      return td->stickers_manager_->register_dice(dice->emoji, dice->dice_value, {}, message_full_id, source);
-    }
-    case MessageContentType::Story:
-      return td->story_manager_->register_story(static_cast<const MessageStory *>(content)->story_full_id, {},
-                                                message_full_id, source);
-    default:
-      return;
-  }
-}
-
-void unregister_quick_reply_message_content(Td *td, const MessageContent *content,
-                                            QuickReplyMessageFullId message_full_id, const char *source) {
-  switch (content->get_type()) {
-    case MessageContentType::Text: {
-      auto text = static_cast<const MessageText *>(content);
-      if (text->web_page_id.is_valid()) {
-        td->web_pages_manager_->unregister_quick_reply_web_page(text->web_page_id, message_full_id, source);
-      } else if (can_be_animated_emoji(text->text)) {
-        td->stickers_manager_->unregister_emoji(text->text.text, get_custom_emoji_id(text->text), {}, message_full_id,
-                                                source);
-      }
-      return;
-    }
-    case MessageContentType::Dice: {
-      auto dice = static_cast<const MessageDice *>(content);
-      return td->stickers_manager_->unregister_dice(dice->emoji, dice->dice_value, {}, message_full_id, source);
-    }
-    case MessageContentType::Story:
-      return td->story_manager_->unregister_story(static_cast<const MessageStory *>(content)->story_full_id, {},
-                                                  message_full_id, source);
-    default:
-      return;
-  }
-}
-
-template <class ToT, class FromT>
-static tl_object_ptr<ToT> secret_to_telegram(FromT &from);
-
-// photoSizeEmpty type:string = PhotoSize;
-static auto secret_to_telegram(secret_api::photoSizeEmpty &empty) {
-  if (!clean_input_string(empty.type_)) {
-    empty.type_.clear();
-  }
-  return make_tl_object<telegram_api::photoSizeEmpty>(empty.type_);
-}
-
-// photoSize type:string location:FileLocation w:int h:int size:int = PhotoSize;
-static auto secret_to_telegram(secret_api::photoSize &photo_size) {
-  if (!clean_input_string(photo_size.type_)) {
-    photo_size.type_.clear();
-  }
-  return make_tl_object<telegram_api::photoSize>(photo_size.type_, photo_size.w_, photo_size.h_, photo_size.size_);
-}
-
-// photoCachedSize type:string location:FileLocation w:int h:int bytes:bytes = PhotoSize;
-static auto secret_to_telegram(secret_api::photoCachedSize &photo_size) {
-  if (!clean_input_string(photo_size.type_)) {
-    photo_size.type_.clear();
-  }
-  return make_tl_object<telegram_api::photoCachedSize>(photo_size.type_, photo_size.w_, photo_size.h_,
-                                                       photo_size.bytes_.clone());
-}
-
-// documentAttributeImageSize w:int h:int = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeImageSize &image_size) {
-  return telegram_api::make_object<telegram_api::documentAttributeImageSize>(image_size.w_, image_size.h_);
-}
-
-// documentAttributeAnimated = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeAnimated &animated) {
-  return telegram_api::make_object<telegram_api::documentAttributeAnimated>();
-}
-
-// documentAttributeSticker23 = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeSticker23 &sticker) {
-  return telegram_api::make_object<telegram_api::documentAttributeSticker>(
-      0, false, "", make_tl_object<telegram_api::inputStickerSetEmpty>(), nullptr);
-}
-
-static auto secret_to_telegram(secret_api::inputStickerSetEmpty &sticker_set) {
-  return make_tl_object<telegram_api::inputStickerSetEmpty>();
-}
-
-static auto secret_to_telegram(secret_api::inputStickerSetShortName &sticker_set) {
-  if (!clean_input_string(sticker_set.short_name_)) {
-    sticker_set.short_name_.clear();
-  }
-  return make_tl_object<telegram_api::inputStickerSetShortName>(sticker_set.short_name_);
-}
-
-// documentAttributeSticker alt:string stickerset:InputStickerSet = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeSticker &sticker) {
-  if (!clean_input_string(sticker.alt_)) {
-    sticker.alt_.clear();
-  }
-  return telegram_api::make_object<telegram_api::documentAttributeSticker>(
-      0, false, sticker.alt_, secret_to_telegram<telegram_api::InputStickerSet>(*sticker.stickerset_), nullptr);
-}
-
-// documentAttributeVideo23 duration:int w:int h:int = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeVideo23 &video) {
-  return telegram_api::make_object<telegram_api::documentAttributeVideo>(0, false, false, false, video.duration_,
-                                                                         video.w_, video.h_, 0, 0.0, string());
-}
-
-// documentAttributeFilename file_name:string = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeFilename &filename) {
-  if (!clean_input_string(filename.file_name_)) {
-    filename.file_name_.clear();
-  }
-  return telegram_api::make_object<telegram_api::documentAttributeFilename>(filename.file_name_);
-}
-
-// documentAttributeVideo flags:# round_message:flags.0?true duration:int w:int h:int = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeVideo &video) {
-  return telegram_api::make_object<telegram_api::documentAttributeVideo>(
-      0, video.round_message_, false, false, video.duration_, video.w_, video.h_, 0, 0.0, string());
-}
-
-static auto telegram_documentAttributeAudio(bool is_voice_note, int duration, string title, string performer,
-                                            BufferSlice waveform) {
-  if (!clean_input_string(title)) {
-    title.clear();
-  }
-  if (!clean_input_string(performer)) {
-    performer.clear();
-  }
-  return telegram_api::make_object<telegram_api::documentAttributeAudio>(0, is_voice_note, duration, std::move(title),
-                                                                         std::move(performer), std::move(waveform));
-}
-
-// documentAttributeAudio23 duration:int = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeAudio23 &audio) {
-  return telegram_documentAttributeAudio(false, audio.duration_, "", "", Auto());
-}
-// documentAttributeAudio45 duration:int title:string performer:string = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeAudio45 &audio) {
-  return telegram_documentAttributeAudio(false, audio.duration_, audio.title_, audio.performer_, Auto());
-}
-
-// documentAttributeAudio flags:# voice:flags.10?true duration:int title:flags.0?string
-//    performer:flags.1?string waveform:flags.2?bytes = DocumentAttribute;
-static auto secret_to_telegram(secret_api::documentAttributeAudio &audio) {
-  return telegram_documentAttributeAudio(audio.voice_, audio.duration_, audio.title_, audio.performer_,
-                                         audio.waveform_.clone());
-}
-
-static auto secret_to_telegram(std::vector<secret_api::object_ptr<secret_api::DocumentAttribute>> &attributes) {
-  std::vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> res;
-  for (auto &attribute : attributes) {
-    auto telegram_attribute = secret_to_telegram<telegram_api::DocumentAttribute>(*attribute);
-    if (telegram_attribute) {
-      res.push_back(std::move(telegram_attribute));
-    }
-  }
-  return res;
-}
-
-// decryptedMessageMediaExternalDocument id:long access_hash:long date:int mime_type:string size:int
-// thumb:PhotoSize dc_id:int attributes:Vector<DocumentAttribute> = DecryptedMessageMedia;
-static auto secret_to_telegram_document(secret_api::decryptedMessageMediaExternalDocument &from) {
-  if (!clean_input_string(from.mime_type_)) {
-    from.mime_type_.clear();
-  }
-  vector<telegram_api::object_ptr<telegram_api::PhotoSize>> thumbnails;
-  thumbnails.push_back(secret_to_telegram<telegram_api::PhotoSize>(*from.thumb_));
-  return make_tl_object<telegram_api::document>(0, from.id_, from.access_hash_, BufferSlice(), from.date_,
-                                                from.mime_type_, from.size_, std::move(thumbnails), Auto(), from.dc_id_,
-                                                secret_to_telegram(from.attributes_));
-}
-
-template <class ToT, class FromT>
-static tl_object_ptr<ToT> secret_to_telegram(FromT &from) {
-  tl_object_ptr<ToT> res;
-  downcast_call(from, [&](auto &p) { res = secret_to_telegram(p); });
-  return res;
-}
-
-static unique_ptr<MessageContent> get_document_message_content(Document &&parsed_document, FormattedText &&caption,
-                                                               bool is_opened, bool is_premium, bool has_spoiler,
-                                                               vector<FileId> &&alternative_file_ids,
-                                                               vector<FileId> &&hls_file_ids, Photo &&video_cover,
-                                                               int32 video_timestamp) {
-  auto file_id = parsed_document.file_id;
-  if (!parsed_document.empty()) {
-    CHECK(file_id.is_valid());
-  }
-  if (!alternative_file_ids.empty() && parsed_document.type != Document::Type::Video) {
-    LOG(ERROR) << "Receive alternative videos for " << parsed_document;
-  }
-  switch (parsed_document.type) {
-    case Document::Type::Animation:
-      return make_unique<MessageAnimation>(file_id, std::move(caption), has_spoiler);
-    case Document::Type::Audio:
-      return make_unique<MessageAudio>(file_id, std::move(caption));
-    case Document::Type::General:
-      return make_unique<MessageDocument>(file_id, std::move(caption));
-    case Document::Type::Sticker:
-      return make_unique<MessageSticker>(file_id, is_premium);
-    case Document::Type::Unknown:
-      return make_unique<MessageUnsupported>();
-    case Document::Type::Video:
-      return td::make_unique<MessageVideo>(file_id, std::move(alternative_file_ids), std::move(hls_file_ids),
-                                           std::move(video_cover), video_timestamp, std::move(caption), has_spoiler);
-    case Document::Type::VideoNote:
-      return make_unique<MessageVideoNote>(file_id, is_opened);
-    case Document::Type::VoiceNote:
-      return make_unique<MessageVoiceNote>(file_id, std::move(caption), is_opened);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-static unique_ptr<MessageContent> get_document_message_content(Td *td, tl_object_ptr<telegram_api::document> &&document,
-                                                               DialogId owner_dialog_id, bool is_self_destructing,
-                                                               FormattedText &&caption, bool is_opened, bool is_premium,
-                                                               bool has_spoiler, vector<FileId> &&alternative_file_ids,
-                                                               vector<FileId> &&hls_file_ids, Photo &&video_cover,
-                                                               int32 start_timestamp,
-                                                               MultiPromiseActor *load_data_multipromise_ptr) {
-  return get_document_message_content(
-      td->documents_manager_->on_get_document(std::move(document), owner_dialog_id, is_self_destructing,
-                                              load_data_multipromise_ptr),
-      std::move(caption), is_opened, is_premium, has_spoiler, std::move(alternative_file_ids), std::move(hls_file_ids),
-      std::move(video_cover), start_timestamp);
-}
-
-unique_ptr<MessageContent> get_secret_message_content(
-    Td *td, string message_text, unique_ptr<EncryptedFile> file,
-    tl_object_ptr<secret_api::DecryptedMessageMedia> &&media_ptr,
-    vector<tl_object_ptr<secret_api::MessageEntity>> &&secret_entities, DialogId owner_dialog_id,
-    MultiPromiseActor &load_data_multipromise, bool is_premium) {
-  int32 constructor_id = media_ptr == nullptr ? secret_api::decryptedMessageMediaEmpty::ID : media_ptr->get_id();
-  auto caption = [&] {
-    switch (constructor_id) {
-      case secret_api::decryptedMessageMediaVideo::ID: {
-        auto media = static_cast<secret_api::decryptedMessageMediaVideo *>(media_ptr.get());
-        return std::move(media->caption_);
-      }
-      case secret_api::decryptedMessageMediaPhoto::ID: {
-        auto media = static_cast<secret_api::decryptedMessageMediaPhoto *>(media_ptr.get());
-        return std::move(media->caption_);
-      }
-      case secret_api::decryptedMessageMediaDocument46::ID: {
-        auto media = static_cast<secret_api::decryptedMessageMediaDocument46 *>(media_ptr.get());
-        return std::move(media->caption_);
-      }
-      case secret_api::decryptedMessageMediaDocument::ID: {
-        auto media = static_cast<secret_api::decryptedMessageMediaDocument *>(media_ptr.get());
-        return std::move(media->caption_);
-      }
-      default:
-        return string();
-    }
-  }();
-  if (!clean_input_string(caption)) {
-    caption.clear();
-  }
-
-  if (message_text.empty()) {
-    message_text = std::move(caption);
-  } else if (!caption.empty()) {
-    message_text = message_text + "\n\n" + caption;
-  }
-
-  auto entities = get_message_entities(td, std::move(secret_entities), is_premium, load_data_multipromise);
-  auto status = fix_formatted_text(message_text, entities, true, false, true, td->auth_manager_->is_bot(), false);
-  if (status.is_error()) {
-    LOG(WARNING) << "Receive error " << status << " while parsing secret message \"" << message_text
-                 << "\" with entities " << entities;
-    if (!clean_input_string(message_text)) {
-      message_text.clear();
-    }
-    entities = find_entities(message_text, true, td->auth_manager_->is_bot());
-  }
-
-  // support of old layer and old constructions
-  switch (constructor_id) {
-    case secret_api::decryptedMessageMediaDocument46::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaDocument46>(media_ptr);
-      media_ptr = secret_api::make_object<secret_api::decryptedMessageMediaDocument>(
-          std::move(media->thumb_), media->thumb_w_, media->thumb_h_, media->mime_type_, media->size_,
-          std::move(media->key_), std::move(media->iv_), std::move(media->attributes_), string());
-
-      constructor_id = secret_api::decryptedMessageMediaDocument::ID;
-      break;
-    }
-    case secret_api::decryptedMessageMediaVideo::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaVideo>(media_ptr);
-      vector<secret_api::object_ptr<secret_api::DocumentAttribute>> attributes;
-      attributes.emplace_back(secret_api::make_object<secret_api::documentAttributeVideo>(0, false, media->duration_,
-                                                                                          media->w_, media->h_));
-      media_ptr = secret_api::make_object<secret_api::decryptedMessageMediaDocument>(
-          std::move(media->thumb_), media->thumb_w_, media->thumb_h_, media->mime_type_, media->size_,
-          std::move(media->key_), std::move(media->iv_), std::move(attributes), string());
-
-      constructor_id = secret_api::decryptedMessageMediaDocument::ID;
-      break;
-    }
-    default:
-      break;
-  }
-
-  bool is_media_empty = false;
-  switch (constructor_id) {
-    case secret_api::decryptedMessageMediaEmpty::ID:
-      if (message_text.empty()) {
-        LOG(ERROR) << "Receive empty message text and media";
-      }
-      is_media_empty = true;
-      break;
-    case secret_api::decryptedMessageMediaGeoPoint::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaGeoPoint>(media_ptr);
-
-      auto m = make_unique<MessageLocation>(Location(media));
-      if (m->location.empty()) {
-        is_media_empty = true;
-        break;
-      }
-
-      return std::move(m);
-    }
-    case secret_api::decryptedMessageMediaVenue::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaVenue>(media_ptr);
-
-      if (!clean_input_string(media->title_)) {
-        media->title_.clear();
-      }
-      if (!clean_input_string(media->address_)) {
-        media->address_.clear();
-      }
-      if (!clean_input_string(media->provider_)) {
-        media->provider_.clear();
-      }
-      if (!clean_input_string(media->venue_id_)) {
-        media->venue_id_.clear();
-      }
-
-      auto m = make_unique<MessageVenue>(Venue(Location(td, media->lat_, media->long_, 0.0, 0),
-                                               std::move(media->title_), std::move(media->address_),
-                                               std::move(media->provider_), std::move(media->venue_id_), string()));
-      if (m->venue.empty()) {
-        is_media_empty = true;
-        break;
-      }
-
-      return std::move(m);
-    }
-    case secret_api::decryptedMessageMediaContact::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaContact>(media_ptr);
-      if (!clean_input_string(media->phone_number_)) {
-        media->phone_number_.clear();
-      }
-      if (!clean_input_string(media->first_name_)) {
-        media->first_name_.clear();
-      }
-      if (!clean_input_string(media->last_name_)) {
-        media->last_name_.clear();
-      }
-      return make_unique<MessageContact>(Contact(std::move(media->phone_number_), std::move(media->first_name_),
-                                                 std::move(media->last_name_), string(), UserId()));
-    }
-    case secret_api::decryptedMessageMediaWebPage::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaWebPage>(media_ptr);
-      if (!clean_input_string(media->url_)) {
-        media->url_.clear();
-      }
-      auto r_http_url = parse_url(media->url_);
-      if (r_http_url.is_error()) {
-        is_media_empty = true;
-        break;
-      }
-      auto url = r_http_url.ok().get_url();
-
-      auto result = td::make_unique<MessageText>(FormattedText{std::move(message_text), std::move(entities)},
-                                                 WebPageId(), false, false, false, url);
-      td->web_pages_manager_->fetch_web_page_by_url(
-          url,
-          PromiseCreator::lambda([&web_page_id = result->web_page_id, promise = load_data_multipromise.get_promise()](
-                                     Result<WebPageId> r_web_page_id) mutable {
-            if (r_web_page_id.is_ok()) {
-              web_page_id = r_web_page_id.move_as_ok();
-            }
-            promise.set_value(Unit());
-          }));
-      return std::move(result);
-    }
-    case secret_api::decryptedMessageMediaExternalDocument::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaExternalDocument>(media_ptr);
-      return get_document_message_content(td, secret_to_telegram_document(*media), owner_dialog_id, false,
-                                          FormattedText{std::move(message_text), std::move(entities)}, false,
-                                          is_premium, false, {}, {}, Photo(), 0, &load_data_multipromise);
-    }
-    default:
-      break;
-  }
-  if (file == nullptr && !is_media_empty) {
-    LOG(ERROR) << "Receive secret message with media, but without a file";
-    is_media_empty = true;
-  }
-  if (is_media_empty) {
-    return create_text_message_content(std::move(message_text), std::move(entities), WebPageId(), false, false, false,
-                                       string());
-  }
-  switch (constructor_id) {
-    case secret_api::decryptedMessageMediaPhoto::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaPhoto>(media_ptr);
-      return make_unique<MessagePhoto>(
-          get_encrypted_file_photo(td->file_manager_.get(), std::move(file), std::move(media), owner_dialog_id),
-          FormattedText{std::move(message_text), std::move(entities)}, false);
-    }
-    case secret_api::decryptedMessageMediaDocument::ID: {
-      auto media = secret_api::move_object_as<secret_api::decryptedMessageMediaDocument>(media_ptr);
-      if (!clean_input_string(media->mime_type_)) {
-        media->mime_type_.clear();
-      }
-      auto attributes = secret_to_telegram(media->attributes_);
-      for (auto &attribute : attributes) {
-        CHECK(attribute != nullptr);
-        if (attribute->get_id() == telegram_api::documentAttributeSticker::ID) {
-          auto attribute_sticker = static_cast<telegram_api::documentAttributeSticker *>(attribute.get());
-          CHECK(attribute_sticker->stickerset_ != nullptr);
-          if (attribute_sticker->stickerset_->get_id() != telegram_api::inputStickerSetEmpty::ID) {
-            attribute_sticker->stickerset_ = telegram_api::make_object<telegram_api::inputStickerSetEmpty>();
-          }
-        }
-      }
-
-      media->attributes_.clear();
-      auto document = td->documents_manager_->on_get_document(
-          {std::move(file), std::move(media), std::move(attributes)}, owner_dialog_id, false);
-      return get_document_message_content(std::move(document), {std::move(message_text), std::move(entities)}, false,
-                                          false, false, {}, {}, Photo(), 0);
-    }
-    default:
-      LOG(ERROR) << "Unsupported: " << to_string(media_ptr);
-      return make_unique<MessageUnsupported>();
-  }
-}
-
-unique_ptr<MessageContent> get_message_content(Td *td, FormattedText message,
-                                               tl_object_ptr<telegram_api::MessageMedia> &&media_ptr,
-                                               DialogId owner_dialog_id, int32 message_date, bool is_content_read,
-                                               UserId via_bot_user_id, MessageSelfDestructType *ttl,
-                                               bool *disable_web_page_preview, const char *source) {
-  if (!G()->close_flag() && !td->auth_manager_->was_authorized() && media_ptr != nullptr &&
-      media_ptr->get_id() != telegram_api::messageMediaEmpty::ID) {
-    LOG(ERROR) << "Receive without authorization from " << source << ": " << to_string(media_ptr);
-    media_ptr = nullptr;
-  }
-  if (disable_web_page_preview != nullptr) {
-    *disable_web_page_preview = false;
-  }
-
-  switch (media_ptr == nullptr ? telegram_api::messageMediaEmpty::ID : media_ptr->get_id()) {
-    case telegram_api::messageMediaEmpty::ID:
-      if (message.text.empty()) {
-        LOG(ERROR) << "Receive empty message text and media from " << source;
-      }
-      if (disable_web_page_preview != nullptr && !get_first_url(message).empty()) {
-        *disable_web_page_preview = true;
-      }
-      return td::make_unique<MessageText>(std::move(message), WebPageId(), false, false, false, string());
-    case telegram_api::messageMediaPhoto::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaPhoto>(media_ptr);
-      if (media->photo_ == nullptr) {
-        if ((media->flags_ & telegram_api::messageMediaPhoto::TTL_SECONDS_MASK) == 0) {
-          LOG(ERROR) << "Receive messageMediaPhoto without photo and self-destruct timer from " << source << ": "
-                     << oneline(to_string(media));
-          break;
-        }
-
-        return make_unique<MessageExpiredPhoto>();
-      }
-
-      bool is_self_destructing = (media->flags_ & telegram_api::messageMediaPhoto::TTL_SECONDS_MASK) != 0;
-      auto photo = get_photo(td, std::move(media->photo_), owner_dialog_id,
-                             is_self_destructing ? FileType::SelfDestructingPhoto : FileType::Photo);
-      if (photo.is_empty()) {
-        return make_unique<MessageExpiredPhoto>();
-      }
-
-      if (ttl != nullptr && is_self_destructing) {
-        *ttl = MessageSelfDestructType(media->ttl_seconds_, true);
-      }
-      return make_unique<MessagePhoto>(std::move(photo), std::move(message), media->spoiler_);
-    }
-    case telegram_api::messageMediaDice::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaDice>(media_ptr);
-
-      auto m = td::make_unique<MessageDice>(media->emoticon_, media->value_);
-      if (!m->is_valid()) {
-        break;
-      }
-
-      return std::move(m);
-    }
-    case telegram_api::messageMediaGeo::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaGeo>(media_ptr);
-
-      auto m = make_unique<MessageLocation>(Location(td, media->geo_));
-      if (m->location.empty()) {
-        break;
-      }
-
-      return std::move(m);
-    }
-    case telegram_api::messageMediaGeoLive::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaGeoLive>(media_ptr);
-      auto location = Location(td, media->geo_);
-      if (location.empty()) {
-        break;
-      }
-
-      int32 period = media->period_;
-      if (period <= 0) {
-        LOG(ERROR) << "Receive wrong live location period = " << period << " from " << source;
-        return make_unique<MessageLocation>(std::move(location));
-      }
-      return make_unique<MessageLiveLocation>(std::move(location), period, media->heading_,
-                                              media->proximity_notification_radius_);
-    }
-    case telegram_api::messageMediaVenue::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaVenue>(media_ptr);
-      auto m = make_unique<MessageVenue>(Venue(td, media->geo_, std::move(media->title_), std::move(media->address_),
-                                               std::move(media->provider_), std::move(media->venue_id_),
-                                               std::move(media->venue_type_)));
-      if (m->venue.empty()) {
-        break;
-      }
-
-      return std::move(m);
-    }
-    case telegram_api::messageMediaContact::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaContact>(media_ptr);
-      if (media->user_id_ != 0) {
-        td->user_manager_->get_user_id_object(UserId(media->user_id_),
-                                              "MessageMediaContact");  // to ensure updateUser
-      }
-      return make_unique<MessageContact>(Contact(std::move(media->phone_number_), std::move(media->first_name_),
-                                                 std::move(media->last_name_), std::move(media->vcard_),
-                                                 UserId(media->user_id_)));
-    }
-    case telegram_api::messageMediaDocument::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaDocument>(media_ptr);
-      if (media->document_ == nullptr) {
-        if ((media->flags_ & telegram_api::messageMediaDocument::TTL_SECONDS_MASK) == 0) {
-          LOG(ERROR) << "Receive messageMediaDocument without document and self-destruct timer from " << source << ": "
-                     << oneline(to_string(media));
-          break;
-        }
-        if (media->voice_) {
-          return make_unique<MessageExpiredVoiceNote>();
-        }
-        if (media->round_) {
-          return make_unique<MessageExpiredVideoNote>();
-        }
-        if (media->video_) {
-          return make_unique<MessageExpiredVideo>();
-        }
-        LOG(ERROR) << "Receive messageMediaDocument without document and media type from " << source << ": "
-                   << oneline(to_string(media));
-
-        return make_unique<MessageExpiredVideo>();
-      }
-
-      auto document_ptr = std::move(media->document_);
-      int32 document_id = document_ptr->get_id();
-      if (document_id == telegram_api::documentEmpty::ID) {
-        break;
-      }
-      CHECK(document_id == telegram_api::document::ID);
-
-      bool is_self_destructing = (media->flags_ & telegram_api::messageMediaDocument::TTL_SECONDS_MASK) != 0;
-      if (ttl != nullptr && is_self_destructing) {
-        *ttl = MessageSelfDestructType(media->ttl_seconds_, true);
-      }
-      vector<FileId> alternative_file_ids;
-      vector<FileId> hls_file_ids;
-      for (auto &alt_document_ptr : media->alt_documents_) {
-        int32 alt_document_id = alt_document_ptr->get_id();
-        if (alt_document_id == telegram_api::documentEmpty::ID) {
-          LOG(ERROR) << "Receive alternative " << to_string(alt_document_ptr);
-        } else {
-          CHECK(alt_document_id == telegram_api::document::ID);
-          auto document = telegram_api::move_object_as<telegram_api::document>(alt_document_ptr);
-          if (document->mime_type_ == "application/x-mpegurl") {
-            auto parsed_hls_file = td->documents_manager_->on_get_document(std::move(document), owner_dialog_id, false);
-            if (parsed_hls_file.empty() || parsed_hls_file.type != Document::Type::General) {
-              LOG(ERROR) << "Receive invalid HLS file " << parsed_hls_file;
-            } else {
-              hls_file_ids.push_back(parsed_hls_file.file_id);
-            }
-            continue;
-          }
-          auto parsed_alt_document = td->documents_manager_->on_get_document(std::move(document), owner_dialog_id,
-                                                                             false, nullptr, Document::Type::Video);
-          if (parsed_alt_document.empty() || parsed_alt_document.type != Document::Type::Video) {
-            LOG(ERROR) << "Receive invalid alternative video " << parsed_alt_document;
-          } else {
-            alternative_file_ids.push_back(parsed_alt_document.file_id);
-          }
-        }
-      }
-      Photo video_cover;
-      if (media->video_cover_ != nullptr) {
-        video_cover = get_photo(td, std::move(media->video_cover_), owner_dialog_id,
-                                is_self_destructing ? FileType::SelfDestructingPhoto : FileType::Photo);
-      }
-      return get_document_message_content(
-          td, telegram_api::move_object_as<telegram_api::document>(document_ptr), owner_dialog_id, is_self_destructing,
-          std::move(message), is_content_read, !media->nopremium_, media->spoiler_, std::move(alternative_file_ids),
-          std::move(hls_file_ids), std::move(video_cover), media->video_timestamp_, nullptr);
-    }
-    case telegram_api::messageMediaGame::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaGame>(media_ptr);
-
-      auto m = make_unique<MessageGame>(
-          Game(td, via_bot_user_id, std::move(media->game_), std::move(message), owner_dialog_id));
-      if (m->game.is_empty()) {
-        break;
-      }
-      return std::move(m);
-    }
-    case telegram_api::messageMediaInvoice::ID:
-      return td::make_unique<MessageInvoice>(
-          InputInvoice(telegram_api::move_object_as<telegram_api::messageMediaInvoice>(media_ptr), td, owner_dialog_id,
-                       std::move(message)));
-    case telegram_api::messageMediaWebPage::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaWebPage>(media_ptr);
-      string web_page_url;
-      if (media->manual_ || media->force_small_media_ || media->force_large_media_) {
-        web_page_url = WebPagesManager::get_web_page_url(media->webpage_);
-        if (web_page_url.empty()) {
-          LOG(ERROR) << "Have no URL in " << to_string(media);
-        }
-      } else if (td->auth_manager_->is_bot()) {
-        web_page_url = WebPagesManager::get_web_page_url(media->webpage_);
-      }
-      auto web_page_id = td->web_pages_manager_->on_get_web_page(std::move(media->webpage_), owner_dialog_id);
-      return td::make_unique<MessageText>(std::move(message), web_page_id, media->force_small_media_,
-                                          media->force_large_media_, media->safe_, std::move(web_page_url));
-    }
-    case telegram_api::messageMediaPoll::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaPoll>(media_ptr);
-      auto poll_id =
-          td->poll_manager_->on_get_poll(PollId(), std::move(media->poll_), std::move(media->results_), source);
-      if (!poll_id.is_valid()) {
-        break;
-      }
-      return make_unique<MessagePoll>(poll_id);
-    }
-    case telegram_api::messageMediaStory::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaStory>(media_ptr);
-      auto dialog_id = DialogId(media->peer_);
-      auto story_id = StoryId(media->id_);
-      auto story_full_id = StoryFullId(dialog_id, story_id);
-      if (!story_full_id.is_server()) {
-        LOG(ERROR) << "Receive " << to_string(media);
-        break;
-      }
-      if (media->story_ != nullptr && !td->auth_manager_->is_bot()) {
-        auto actual_story_id = td->story_manager_->on_get_story(dialog_id, std::move(media->story_));
-        if (story_id != actual_story_id) {
-          LOG(ERROR) << "Receive " << actual_story_id << " instead of " << story_id;
-        }
-      }
-      td->dialog_manager_->force_create_dialog(dialog_id, "messageMediaStory", true);
-      return make_unique<MessageStory>(story_full_id, media->via_mention_);
-    }
-    case telegram_api::messageMediaGiveaway::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaGiveaway>(media_ptr);
-      vector<ChannelId> channel_ids;
-      for (auto channel : media->channels_) {
-        ChannelId channel_id(channel);
-        if (channel_id.is_valid()) {
-          channel_ids.push_back(channel_id);
-          td->dialog_manager_->force_create_dialog(DialogId(channel_id), "messageMediaGiveaway", true);
-        }
-      }
-      if (channel_ids.empty() || media->quantity_ <= 0 || (media->months_ <= 0 && media->stars_ <= 0) ||
-          media->until_date_ < 0) {
-        if (message_date >= 1700000000) {  // approximate release date
-          LOG(ERROR) << "Receive " << to_string(media);
-        }
-        break;
-      }
-      auto boosted_channel_id = channel_ids[0];
-      channel_ids.erase(channel_ids.begin());
-      return td::make_unique<MessageGiveaway>(
-          GiveawayParameters{boosted_channel_id, std::move(channel_ids), media->only_new_subscribers_,
-                             media->winners_are_visible_, media->until_date_, std::move(media->countries_iso2_),
-                             std::move(media->prize_description_)},
-          media->quantity_, media->months_, StarManager::get_star_count(media->stars_));
-    }
-    case telegram_api::messageMediaGiveawayResults::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaGiveawayResults>(media_ptr);
-      auto giveaway_message_id = MessageId(ServerMessageId(media->launch_msg_id_));
-      auto boosted_channel_id = ChannelId(media->channel_id_);
-      if (!giveaway_message_id.is_valid() || !boosted_channel_id.is_valid() || media->additional_peers_count_ < 0 ||
-          (media->months_ <= 0 && media->stars_ <= 0) || media->until_date_ <= 0 || media->winners_count_ < 0 ||
-          media->unclaimed_count_ < 0) {
-        LOG(ERROR) << "Receive " << to_string(media);
-        break;
-      }
-      td->dialog_manager_->force_create_dialog(DialogId(boosted_channel_id), "messageMediaGiveawayResults", true);
-      vector<UserId> winner_user_ids;
-      for (auto winner : media->winners_) {
-        UserId winner_user_id(winner);
-        if (winner_user_id.is_valid()) {
-          winner_user_ids.push_back(winner_user_id);
-        } else {
-          LOG(ERROR) << "Receive " << to_string(media);
-          break;
-        }
-      }
-      return td::make_unique<MessageGiveawayWinners>(
-          giveaway_message_id, boosted_channel_id, media->additional_peers_count_, media->months_,
-          StarManager::get_star_count(media->stars_), std::move(media->prize_description_), media->until_date_,
-          media->only_new_subscribers_, media->refunded_, media->winners_count_, media->unclaimed_count_,
-          std::move(winner_user_ids));
-    }
-    case telegram_api::messageMediaPaidMedia::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaPaidMedia>(media_ptr);
-      auto extended_media = transform(std::move(media->extended_media_), [&](auto &&extended_media) {
-        return MessageExtendedMedia(td, std::move(extended_media), owner_dialog_id);
-      });
-      return td::make_unique<MessagePaidMedia>(std::move(extended_media), std::move(message),
-                                               StarManager::get_star_count(media->stars_amount_), string());
-    }
-    case telegram_api::messageMediaUnsupported::ID:
-      return make_unique<MessageUnsupported>();
-    default:
-      UNREACHABLE();
-  }
-
-  // explicit empty media message
-  if (disable_web_page_preview != nullptr && !get_first_url(message).empty()) {
-    *disable_web_page_preview = true;
-  }
-  return td::make_unique<MessageText>(std::move(message), WebPageId(), false, false, false, string());
-}
-
-unique_ptr<MessageContent> dup_message_content(Td *td, DialogId dialog_id, const MessageContent *content,
-                                               MessageContentDupType type, MessageCopyOptions &&copy_options) {
-  CHECK(content != nullptr);
-  if (copy_options.send_copy) {
-    CHECK(type == MessageContentDupType::Copy || type == MessageContentDupType::ServerCopy);
-  }
-  if (type != MessageContentDupType::Forward && type != MessageContentDupType::SendViaBot &&
-      !can_message_content_have_input_media(td, content, type == MessageContentDupType::ServerCopy)) {
-    return nullptr;
-  }
-
-  bool to_secret = dialog_id.get_type() == DialogType::SecretChat;
-  auto fix_file_id = [dialog_id, to_secret, file_manager = td->file_manager_.get()](FileId file_id) {
-    auto file_view = file_manager->get_file_view(file_id);
-    if (to_secret && !file_view.is_encrypted_secret()) {
-      return file_manager->copy_file_id(file_id, FileType::Encrypted, dialog_id, "copy message content to secret");
-    }
-    return file_id;
-  };
-
-  auto replace_caption = (type == MessageContentDupType::Copy || type == MessageContentDupType::ServerCopy) &&
-                         copy_options.replace_caption;
-  switch (content->get_type()) {
-    case MessageContentType::Animation: {
-      auto result = make_unique<MessageAnimation>(*static_cast<const MessageAnimation *>(content));
-      if (replace_caption) {
-        result->caption = std::move(copy_options.new_caption);
-      }
-      auto file_id = fix_file_id(result->file_id);
-      if (file_id != result->file_id) {
-        result->file_id = td->animations_manager_->dup_animation(file_id, result->file_id);
-      }
-      return std::move(result);
-    }
-    case MessageContentType::Audio: {
-      auto result = make_unique<MessageAudio>(*static_cast<const MessageAudio *>(content));
-      if (replace_caption) {
-        result->caption = std::move(copy_options.new_caption);
-      }
-      auto file_id = fix_file_id(result->file_id);
-      if (file_id != result->file_id) {
-        result->file_id = td->audios_manager_->dup_audio(file_id, result->file_id);
-      }
-      return std::move(result);
-    }
-    case MessageContentType::Contact:
-      return make_unique<MessageContact>(*static_cast<const MessageContact *>(content));
-    case MessageContentType::Dice: {
-      auto result = td::make_unique<MessageDice>(*static_cast<const MessageDice *>(content));
-      if (type != MessageContentDupType::Forward) {
-        result->dice_value = 0;
-      }
-      return std::move(result);
-    }
-    case MessageContentType::Document: {
-      auto result = make_unique<MessageDocument>(*static_cast<const MessageDocument *>(content));
-      if (replace_caption) {
-        result->caption = std::move(copy_options.new_caption);
-      }
-      auto file_id = fix_file_id(result->file_id);
-      if (file_id != result->file_id) {
-        result->file_id = td->documents_manager_->dup_document(file_id, result->file_id);
-      }
-      return std::move(result);
-    }
-    case MessageContentType::Game:
-      return make_unique<MessageGame>(*static_cast<const MessageGame *>(content));
-    case MessageContentType::Giveaway:
-      if (type != MessageContentDupType::Forward) {
-        return nullptr;
-      }
-      return make_unique<MessageGiveaway>(*static_cast<const MessageGiveaway *>(content));
-    case MessageContentType::GiveawayWinners:
-      if (type != MessageContentDupType::Forward) {
-        return nullptr;
-      }
-      return make_unique<MessageGiveawayWinners>(*static_cast<const MessageGiveawayWinners *>(content));
-    case MessageContentType::Invoice:
-      if (type == MessageContentDupType::Copy) {
-        return nullptr;
-      }
-      return make_unique<MessageInvoice>(*static_cast<const MessageInvoice *>(content));
-    case MessageContentType::LiveLocation:
-      if (!to_secret && (type == MessageContentDupType::Send || type == MessageContentDupType::SendViaBot)) {
-        return make_unique<MessageLiveLocation>(*static_cast<const MessageLiveLocation *>(content));
-      } else {
-        return make_unique<MessageLocation>(Location(static_cast<const MessageLiveLocation *>(content)->location));
-      }
-    case MessageContentType::Location:
-      return make_unique<MessageLocation>(*static_cast<const MessageLocation *>(content));
-    case MessageContentType::PaidMedia: {
-      if (type == MessageContentDupType::Copy || type == MessageContentDupType::ServerCopy) {
-        return nullptr;
-      }
-      CHECK(!to_secret);
-      auto result = make_unique<MessagePaidMedia>(*static_cast<const MessagePaidMedia *>(content));
-      if (replace_caption) {
-        result->caption = std::move(copy_options.new_caption);
-      }
-      return std::move(result);
-    }
-    case MessageContentType::Photo: {
-      auto result = make_unique<MessagePhoto>(*static_cast<const MessagePhoto *>(content));
-      if (replace_caption) {
-        result->caption = std::move(copy_options.new_caption);
-      }
-
-      CHECK(!result->photo.photos.empty());
-      if (!to_secret) {
-        return std::move(result);
-      }
-
-      result->photo = dup_photo(result->photo);
-      result->photo.photos.back().file_id = fix_file_id(result->photo.photos.back().file_id);
-      return std::move(result);
-    }
-    case MessageContentType::Poll:
-      if (type == MessageContentDupType::Copy || type == MessageContentDupType::ServerCopy) {
-        return make_unique<MessagePoll>(
-            td->poll_manager_->dup_poll(dialog_id, static_cast<const MessagePoll *>(content)->poll_id));
-      } else {
-        return make_unique<MessagePoll>(*static_cast<const MessagePoll *>(content));
-      }
-    case MessageContentType::Sticker: {
-      auto result = make_unique<MessageSticker>(*static_cast<const MessageSticker *>(content));
-      result->is_premium = td->option_manager_->get_option_boolean("is_premium");
-      if (to_secret && !td->stickers_manager_->has_secret_input_media(result->file_id)) {
-        auto file_id = fix_file_id(result->file_id);
-        if (file_id != result->file_id) {
-          result->file_id = td->stickers_manager_->dup_sticker(file_id, result->file_id);
-        }
-      }
-      return std::move(result);
-    }
-    case MessageContentType::Story:
-      return make_unique<MessageStory>(static_cast<const MessageStory *>(content)->story_full_id, false);
-    case MessageContentType::Text: {
-      auto result = td::make_unique<MessageText>(*static_cast<const MessageText *>(content));
-      if (type == MessageContentDupType::Copy || type == MessageContentDupType::ServerCopy) {
-        remove_unallowed_entities(td, result->text, dialog_id);
-      }
-      return std::move(result);
-    }
-    case MessageContentType::Venue:
-      return make_unique<MessageVenue>(*static_cast<const MessageVenue *>(content));
-    case MessageContentType::Video: {
-      auto result = make_unique<MessageVideo>(*static_cast<const MessageVideo *>(content));
-      if (replace_caption) {
-        result->caption = std::move(copy_options.new_caption);
-      }
-      auto file_id = fix_file_id(result->file_id);
-      if (file_id != result->file_id) {
-        result->file_id = td->videos_manager_->dup_video(file_id, result->file_id);
-      }
-      return std::move(result);
-    }
-    case MessageContentType::VideoNote: {
-      auto result = make_unique<MessageVideoNote>(*static_cast<const MessageVideoNote *>(content));
-      result->is_viewed = false;
-      auto file_id = fix_file_id(result->file_id);
-      if (file_id != result->file_id) {
-        result->file_id = td->video_notes_manager_->dup_video_note(file_id, result->file_id);
-      }
-      return std::move(result);
-    }
-    case MessageContentType::VoiceNote: {
-      auto result = make_unique<MessageVoiceNote>(*static_cast<const MessageVoiceNote *>(content));
-      if (replace_caption) {
-        result->caption = std::move(copy_options.new_caption);
-      }
-      result->is_listened = false;
-      auto file_id = fix_file_id(result->file_id);
-      if (file_id != result->file_id) {
-        result->file_id = td->voice_notes_manager_->dup_voice_note(file_id, result->file_id);
-      }
-      return std::move(result);
-    }
-    case MessageContentType::Unsupported:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return nullptr;
-    default:
-      UNREACHABLE();
-  }
-  UNREACHABLE();
-  return nullptr;
-}
-
-unique_ptr<MessageContent> get_action_message_content(Td *td, tl_object_ptr<telegram_api::MessageAction> &&action_ptr,
-                                                      DialogId owner_dialog_id, int32 message_date,
-                                                      const RepliedMessageInfo &replied_message_info,
-                                                      bool is_business_message) {
-  CHECK(action_ptr != nullptr);
-  if (is_business_message) {
-    switch (action_ptr->get_id()) {
-      case telegram_api::messageActionEmpty::ID:
-      case telegram_api::messageActionChatCreate::ID:
-      case telegram_api::messageActionChatEditTitle::ID:
-      case telegram_api::messageActionChatEditPhoto::ID:
-      case telegram_api::messageActionChatDeletePhoto::ID:
-      case telegram_api::messageActionChatAddUser::ID:
-      case telegram_api::messageActionChatJoinedByLink::ID:
-      case telegram_api::messageActionChatDeleteUser::ID:
-      case telegram_api::messageActionChatMigrateTo::ID:
-      case telegram_api::messageActionChannelCreate::ID:
-      case telegram_api::messageActionChannelMigrateFrom::ID:
-      case telegram_api::messageActionBotAllowed::ID:
-      case telegram_api::messageActionSecureValuesSent::ID:
-      case telegram_api::messageActionSecureValuesSentMe::ID:
-      case telegram_api::messageActionGroupCall::ID:
-      case telegram_api::messageActionInviteToGroupCall::ID:
-      case telegram_api::messageActionGroupCallScheduled::ID:
-      case telegram_api::messageActionChatJoinedByRequest::ID:
-      case telegram_api::messageActionWebViewDataSent::ID:
-      case telegram_api::messageActionWebViewDataSentMe::ID:
-      case telegram_api::messageActionTopicCreate::ID:
-      case telegram_api::messageActionTopicEdit::ID:
-      case telegram_api::messageActionRequestedPeer::ID:
-      case telegram_api::messageActionGiveawayLaunch::ID:
-      case telegram_api::messageActionGiveawayResults::ID:
-      case telegram_api::messageActionBoostApply::ID:
-      case telegram_api::messageActionPaidMessagesPrice::ID:
-        LOG(ERROR) << "Receive business " << to_string(action_ptr);
-        break;
-      case telegram_api::messageActionHistoryClear::ID:
-      case telegram_api::messageActionPinMessage::ID:
-      case telegram_api::messageActionGameScore::ID:
-      case telegram_api::messageActionPhoneCall::ID:
-      case telegram_api::messageActionPaymentSent::ID:
-      case telegram_api::messageActionPaymentSentMe::ID:
-      case telegram_api::messageActionScreenshotTaken::ID:
-      case telegram_api::messageActionCustomAction::ID:
-      case telegram_api::messageActionContactSignUp::ID:
-      case telegram_api::messageActionGeoProximityReached::ID:
-      case telegram_api::messageActionSetMessagesTTL::ID:
-      case telegram_api::messageActionSetChatTheme::ID:
-      case telegram_api::messageActionGiftPremium::ID:
-      case telegram_api::messageActionSuggestProfilePhoto::ID:
-      case telegram_api::messageActionSetChatWallPaper::ID:
-      case telegram_api::messageActionGiftCode::ID:
-      case telegram_api::messageActionRequestedPeerSentMe::ID:
-      case telegram_api::messageActionPaymentRefunded::ID:
-      case telegram_api::messageActionGiftStars::ID:
-      case telegram_api::messageActionPrizeStars::ID:
-      case telegram_api::messageActionStarGift::ID:
-      case telegram_api::messageActionStarGiftUnique::ID:
-      case telegram_api::messageActionPaidMessagesRefunded::ID:
-        // ok
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-  switch (action_ptr->get_id()) {
-    case telegram_api::messageActionEmpty::ID:
-      LOG(ERROR) << "Receive empty message action in " << owner_dialog_id;
-      break;
-    case telegram_api::messageActionChatCreate::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionChatCreate>(action_ptr);
-
-      vector<UserId> participant_user_ids;
-      participant_user_ids.reserve(action->users_.size());
-      for (auto &user : action->users_) {
-        UserId user_id(user);
-        if (user_id.is_valid()) {
-          participant_user_ids.push_back(user_id);
-        } else {
-          LOG(ERROR) << "Receive messageActionChatCreate with invalid " << user_id << " in " << owner_dialog_id;
-        }
-      }
-
-      return td::make_unique<MessageChatCreate>(std::move(action->title_), std::move(participant_user_ids));
-    }
-    case telegram_api::messageActionChatEditTitle::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionChatEditTitle>(action_ptr);
-      return td::make_unique<MessageChatChangeTitle>(std::move(action->title_));
-    }
-    case telegram_api::messageActionChatEditPhoto::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionChatEditPhoto>(action_ptr);
-      auto photo = get_photo(td, std::move(action->photo_), owner_dialog_id);
-      if (photo.is_empty()) {
-        break;
-      }
-      return make_unique<MessageChatChangePhoto>(std::move(photo));
-    }
-    case telegram_api::messageActionChatDeletePhoto::ID:
-      return make_unique<MessageChatDeletePhoto>();
-    case telegram_api::messageActionHistoryClear::ID:
-      return make_unique<MessageChatDeleteHistory>();
-    case telegram_api::messageActionChatAddUser::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionChatAddUser>(action_ptr);
-
-      vector<UserId> user_ids;
-      user_ids.reserve(action->users_.size());
-      for (auto &user : action->users_) {
-        UserId user_id(user);
-        if (user_id.is_valid()) {
-          user_ids.push_back(user_id);
-        } else {
-          LOG(ERROR) << "Receive messageActionChatAddUser with invalid " << user_id << " in " << owner_dialog_id;
-        }
-      }
-
-      return td::make_unique<MessageChatAddUsers>(std::move(user_ids));
-    }
-    case telegram_api::messageActionChatJoinedByLink::ID:
-      return make_unique<MessageChatJoinedByLink>(false);
-    case telegram_api::messageActionChatDeleteUser::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionChatDeleteUser>(action_ptr);
-
-      UserId user_id(action->user_id_);
-      if (!user_id.is_valid()) {
-        LOG(ERROR) << "Receive messageActionChatDeleteUser with invalid " << user_id << " in " << owner_dialog_id;
-        break;
-      }
-
-      return make_unique<MessageChatDeleteUser>(user_id);
-    }
-    case telegram_api::messageActionChatMigrateTo::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionChatMigrateTo>(action_ptr);
-
-      ChannelId migrated_to_channel_id(action->channel_id_);
-      if (!migrated_to_channel_id.is_valid()) {
-        LOG(ERROR) << "Receive messageActionChatMigrateTo with invalid " << migrated_to_channel_id << " in "
-                   << owner_dialog_id;
-        break;
-      }
-
-      return make_unique<MessageChatMigrateTo>(migrated_to_channel_id);
-    }
-    case telegram_api::messageActionChannelCreate::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionChannelCreate>(action_ptr);
-      return td::make_unique<MessageChannelCreate>(std::move(action->title_));
-    }
-    case telegram_api::messageActionChannelMigrateFrom::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionChannelMigrateFrom>(action_ptr);
-      ChatId chat_id(action->chat_id_);
-      LOG_IF(ERROR, !chat_id.is_valid()) << "Receive messageActionChannelMigrateFrom with invalid " << chat_id << " in "
-                                         << owner_dialog_id;
-
-      return td::make_unique<MessageChannelMigrateFrom>(std::move(action->title_), chat_id);
-    }
-    case telegram_api::messageActionPinMessage::ID: {
-      auto reply_to_message_id = replied_message_info.get_same_chat_reply_to_message_id(true);
-      if (!reply_to_message_id.is_valid()) {
-        // possible in basic groups
-        LOG(INFO) << "Receive pinned message with " << reply_to_message_id << " in " << owner_dialog_id;
-        reply_to_message_id = MessageId();
-      }
-      return make_unique<MessagePinMessage>(reply_to_message_id);
-    }
-    case telegram_api::messageActionGameScore::ID: {
-      auto reply_to_message_id = replied_message_info.get_same_chat_reply_to_message_id(true);
-      if (!reply_to_message_id.is_valid()) {
-        // possible in basic groups
-        LOG(INFO) << "Receive game score with " << reply_to_message_id << " in " << owner_dialog_id;
-        reply_to_message_id = MessageId();
-      }
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGameScore>(action_ptr);
-      return make_unique<MessageGameScore>(reply_to_message_id, action->game_id_, action->score_);
-    }
-    case telegram_api::messageActionPhoneCall::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionPhoneCall>(action_ptr);
-      auto duration = action->duration_;
-      if (duration < 0) {
-        LOG(ERROR) << "Receive invalid " << oneline(to_string(action));
-        break;
-      }
-      return make_unique<MessageCall>(action->call_id_, duration, get_call_discard_reason(action->reason_),
-                                      action->video_);
-    }
-    case telegram_api::messageActionPaymentSent::ID: {
-      if (!is_business_message && td->auth_manager_->is_bot()) {
-        LOG(ERROR) << "Receive MessageActionPaymentSent in " << owner_dialog_id;
-        break;
-      }
-      auto action = telegram_api::move_object_as<telegram_api::messageActionPaymentSent>(action_ptr);
-      auto message_full_id = replied_message_info.get_reply_message_full_id(DialogId(), true);
-      if (!message_full_id.get_message_id().is_valid()) {
-        if (message_full_id.get_message_id() != MessageId()) {
-          LOG(ERROR) << "Receive successful payment message with " << message_full_id << " in " << owner_dialog_id;
-        }
-        message_full_id = {};
-      }
-      if (action->total_amount_ <= 0 || !check_currency_amount(action->total_amount_)) {
-        LOG(ERROR) << "Receive invalid total amount " << action->total_amount_;
-        action->total_amount_ = 0;
-      }
-      return td::make_unique<MessagePaymentSuccessful>(
-          message_full_id.get_dialog_id(), message_full_id.get_message_id(), std::move(action->currency_),
-          action->total_amount_, std::move(action->invoice_slug_), action->subscription_until_date_,
-          action->recurring_used_, action->recurring_init_);
-    }
-    case telegram_api::messageActionPaymentSentMe::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionPaymentSentMe>(action_ptr);
-      if (action->total_amount_ <= 0 || !check_currency_amount(action->total_amount_)) {
-        LOG(ERROR) << "Receive invalid total amount " << action->total_amount_;
-        action->total_amount_ = 0;
-      }
-      auto result = td::make_unique<MessagePaymentSuccessful>(DialogId(), MessageId(), std::move(action->currency_),
-                                                              action->total_amount_, action->payload_.as_slice().str(),
-                                                              action->subscription_until_date_, action->recurring_used_,
-                                                              action->recurring_init_);
-      result->shipping_option_id = std::move(action->shipping_option_id_);
-      result->order_info = get_order_info(std::move(action->info_));
-      result->telegram_payment_charge_id = std::move(action->charge_->id_);
-      result->provider_payment_charge_id = std::move(action->charge_->provider_charge_id_);
-      return std::move(result);
-    }
-    case telegram_api::messageActionScreenshotTaken::ID:
-      return make_unique<MessageScreenshotTaken>();
-    case telegram_api::messageActionCustomAction::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionCustomAction>(action_ptr);
-      return td::make_unique<MessageCustomServiceAction>(std::move(action->message_));
-    }
-    case telegram_api::messageActionBotAllowed::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionBotAllowed>(action_ptr);
-      if (action->attach_menu_) {
-        return td::make_unique<MessageWriteAccessAllowed>();
-      }
-      if (!action->domain_.empty()) {
-        return td::make_unique<MessageWebsiteConnected>(std::move(action->domain_));
-      }
-      if (action->app_ != nullptr && action->app_->get_id() == telegram_api::botApp::ID) {
-        return td::make_unique<MessageWebViewWriteAccessAllowed>(
-            WebApp(td, telegram_api::move_object_as<telegram_api::botApp>(action->app_), owner_dialog_id));
-      }
-      if (action->from_request_) {
-        return td::make_unique<MessageWriteAccessAllowedByRequest>();
-      }
-      return td::make_unique<MessageUnsupported>();
-    }
-    case telegram_api::messageActionSecureValuesSent::ID: {
-      LOG_IF(ERROR, td->auth_manager_->is_bot()) << "Receive MessageActionSecureValuesSent in " << owner_dialog_id;
-      auto action = telegram_api::move_object_as<telegram_api::messageActionSecureValuesSent>(action_ptr);
-      return td::make_unique<MessagePassportDataSent>(get_secure_value_types(action->types_));
-    }
-    case telegram_api::messageActionSecureValuesSentMe::ID: {
-      LOG_IF(ERROR, !td->auth_manager_->is_bot()) << "Receive MessageActionSecureValuesSentMe in " << owner_dialog_id;
-      auto action = telegram_api::move_object_as<telegram_api::messageActionSecureValuesSentMe>(action_ptr);
-      return td::make_unique<MessagePassportDataReceived>(
-          get_encrypted_secure_values(td->file_manager_.get(), std::move(action->values_)),
-          get_encrypted_secure_credentials(std::move(action->credentials_)));
-    }
-    case telegram_api::messageActionContactSignUp::ID:
-      if (!is_business_message && td->auth_manager_->is_bot()) {
-        LOG(ERROR) << "Receive ContactRegistered in " << owner_dialog_id;
-      }
-      return td::make_unique<MessageContactRegistered>();
-    case telegram_api::messageActionGeoProximityReached::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGeoProximityReached>(action_ptr);
-      DialogId traveler_id(action->from_id_);
-      DialogId watcher_id(action->to_id_);
-      int32 distance = action->distance_;
-      if (!traveler_id.is_valid() || !watcher_id.is_valid() || distance < 0) {
-        LOG(ERROR) << "Receive invalid " << oneline(to_string(action));
-        break;
-      }
-
-      return make_unique<MessageProximityAlertTriggered>(traveler_id, watcher_id, distance);
-    }
-    case telegram_api::messageActionGroupCall::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGroupCall>(action_ptr);
-      int32 duration = -1;
-      if ((action->flags_ & telegram_api::messageActionGroupCall::DURATION_MASK) != 0) {
-        duration = action->duration_;
-        if (duration < 0) {
-          LOG(ERROR) << "Receive invalid " << oneline(to_string(action));
-          break;
-        }
-      }
-      return make_unique<MessageGroupCall>(InputGroupCallId(action->call_), duration, -1);
-    }
-    case telegram_api::messageActionInviteToGroupCall::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionInviteToGroupCall>(action_ptr);
-
-      vector<UserId> user_ids;
-      user_ids.reserve(action->users_.size());
-      for (auto &user : action->users_) {
-        UserId user_id(user);
-        if (user_id.is_valid()) {
-          user_ids.push_back(user_id);
-        } else {
-          LOG(ERROR) << "Receive messageActionInviteToGroupCall with invalid " << user_id << " in " << owner_dialog_id;
-        }
-      }
-
-      return td::make_unique<MessageInviteToGroupCall>(InputGroupCallId(action->call_), std::move(user_ids));
-    }
-    case telegram_api::messageActionSetMessagesTTL::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionSetMessagesTTL>(action_ptr);
-      UserId from_user_id(action->auto_setting_from_);
-      if (action->period_ < 0 || !(from_user_id == UserId() || from_user_id.is_valid())) {
-        LOG(ERROR) << "Receive invalid " << oneline(to_string(action));
-        break;
-      }
-      return make_unique<MessageChatSetTtl>(action->period_, from_user_id);
-    }
-    case telegram_api::messageActionGroupCallScheduled::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGroupCallScheduled>(action_ptr);
-      if (action->schedule_date_ <= 0) {
-        LOG(ERROR) << "Receive wrong schedule_date = " << action->schedule_date_;
-        break;
-      }
-      return make_unique<MessageGroupCall>(InputGroupCallId(action->call_), -1, action->schedule_date_);
-    }
-    case telegram_api::messageActionSetChatTheme::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionSetChatTheme>(action_ptr);
-      return td::make_unique<MessageChatSetTheme>(std::move(action->emoticon_));
-    }
-    case telegram_api::messageActionChatJoinedByRequest::ID:
-      return make_unique<MessageChatJoinedByLink>(true);
-    case telegram_api::messageActionWebViewDataSent::ID: {
-      if (td->auth_manager_->is_bot()) {
-        LOG(ERROR) << "Receive messageActionWebViewDataSent in " << owner_dialog_id;
-        break;
-      }
-      auto action = telegram_api::move_object_as<telegram_api::messageActionWebViewDataSent>(action_ptr);
-      return td::make_unique<MessageWebViewDataSent>(std::move(action->text_));
-    }
-    case telegram_api::messageActionWebViewDataSentMe::ID: {
-      if (!td->auth_manager_->is_bot()) {
-        LOG(ERROR) << "Receive messageActionWebViewDataSentMe in " << owner_dialog_id;
-        break;
-      }
-      auto action = telegram_api::move_object_as<telegram_api::messageActionWebViewDataSentMe>(action_ptr);
-      return td::make_unique<MessageWebViewDataReceived>(std::move(action->text_), std::move(action->data_));
-    }
-    case telegram_api::messageActionGiftPremium::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGiftPremium>(action_ptr);
-      if (action->amount_ <= 0 || !check_currency_amount(action->amount_)) {
-        LOG(ERROR) << "Receive invalid premium gift price " << action->amount_;
-        action->amount_ = 0;
-      }
-      if (action->crypto_currency_.empty()) {
-        if (action->crypto_amount_ != 0) {
-          LOG(ERROR) << "Receive premium gift crypto price " << action->crypto_amount_ << " without currency";
-          action->crypto_amount_ = 0;
-        }
-      } else if (action->crypto_amount_ <= 0) {
-        LOG(ERROR) << "Receive invalid premium gift crypto amount " << action->crypto_amount_;
-        action->crypto_amount_ = 0;
-      }
-      auto text = get_formatted_text(td->user_manager_.get(), std::move(action->message_), true, false,
-                                     "messageActionGiftPremium");
-      return td::make_unique<MessageGiftPremium>(std::move(text), std::move(action->currency_), action->amount_,
-                                                 std::move(action->crypto_currency_), action->crypto_amount_,
-                                                 action->months_);
-    }
-    case telegram_api::messageActionTopicCreate::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionTopicCreate>(action_ptr);
-      return td::make_unique<MessageTopicCreate>(std::move(action->title_),
-                                                 ForumTopicIcon(action->icon_color_, action->icon_emoji_id_));
-    }
-    case telegram_api::messageActionTopicEdit::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionTopicEdit>(action_ptr);
-      auto edit_icon_custom_emoji_id = (action->flags_ & telegram_api::messageActionTopicEdit::ICON_EMOJI_ID_MASK) != 0;
-      auto edit_is_closed = (action->flags_ & telegram_api::messageActionTopicEdit::CLOSED_MASK) != 0;
-      auto edit_is_hidden = (action->flags_ & telegram_api::messageActionTopicEdit::HIDDEN_MASK) != 0;
-      return td::make_unique<MessageTopicEdit>(
-          ForumTopicEditedData{std::move(action->title_), edit_icon_custom_emoji_id, action->icon_emoji_id_,
-                               edit_is_closed, action->closed_, edit_is_hidden, action->hidden_});
-    }
-    case telegram_api::messageActionSuggestProfilePhoto::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionSuggestProfilePhoto>(action_ptr);
-      auto photo = get_photo(td, std::move(action->photo_), owner_dialog_id);
-      if (photo.is_empty()) {
-        break;
-      }
-      return make_unique<MessageSuggestProfilePhoto>(std::move(photo));
-    }
-    case telegram_api::messageActionRequestedPeer::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionRequestedPeer>(action_ptr);
-      vector<DialogId> shared_dialog_ids;
-      for (const auto &peer : action->peers_) {
-        DialogId dialog_id(peer);
-        if (dialog_id.is_valid()) {
-          shared_dialog_ids.push_back(dialog_id);
-        }
-      }
-      if (shared_dialog_ids.size() > 1) {
-        for (auto dialog_id : shared_dialog_ids) {
-          if (dialog_id.get_type() != DialogType::User) {
-            shared_dialog_ids.clear();
-            break;
-          }
-        }
-      }
-      if (shared_dialog_ids.empty() || shared_dialog_ids.size() != action->peers_.size()) {
-        LOG(ERROR) << "Receive invalid " << oneline(to_string(action));
-        break;
-      }
-
-      return td::make_unique<MessageRequestedDialog>(std::move(shared_dialog_ids), action->button_id_);
-    }
-    case telegram_api::messageActionSetChatWallPaper::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionSetChatWallPaper>(action_ptr);
-      BackgroundInfo background_info(td, std::move(action->wallpaper_), true);
-      if (!background_info.is_valid()) {
-        break;
-      }
-      auto reply_to_message_id = replied_message_info.get_same_chat_reply_to_message_id(true);
-      if (!reply_to_message_id.is_valid() || !action->same_) {
-        reply_to_message_id = MessageId();
-      }
-      return make_unique<MessageSetBackground>(reply_to_message_id, std::move(background_info), action->for_both_);
-    }
-    case telegram_api::messageActionGiveawayLaunch::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGiveawayLaunch>(action_ptr);
-      return td::make_unique<MessageGiveawayLaunch>(StarManager::get_star_count(action->stars_));
-    }
-    case telegram_api::messageActionGiftCode::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGiftCode>(action_ptr);
-      DialogId dialog_id;
-      if (action->boost_peer_ != nullptr) {
-        dialog_id = DialogId(action->boost_peer_);
-        if (!dialog_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid " << oneline(to_string(action));
-          break;
-        }
-        if (dialog_id.get_type() != DialogType::User) {
-          td->dialog_manager_->force_create_dialog(dialog_id, "messageActionGiftCode", true);
-        }
-      }
-      auto text = get_formatted_text(td->user_manager_.get(), std::move(action->message_), true, false,
-                                     "messageActionGiftCode");
-      return td::make_unique<MessageGiftCode>(dialog_id, std::move(text), action->months_, std::move(action->currency_),
-                                              action->amount_, std::move(action->crypto_currency_),
-                                              action->crypto_amount_, action->via_giveaway_, action->unclaimed_,
-                                              std::move(action->slug_));
-    }
-    case telegram_api::messageActionGiveawayResults::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGiveawayResults>(action_ptr);
-      auto reply_to_message_id = replied_message_info.get_same_chat_reply_to_message_id(true);
-      if (!reply_to_message_id.is_valid() && reply_to_message_id != MessageId()) {
-        LOG(ERROR) << "Receive giveaway results message with " << reply_to_message_id << " in " << owner_dialog_id;
-        reply_to_message_id = MessageId();
-      }
-      return td::make_unique<MessageGiveawayResults>(reply_to_message_id, action->winners_count_,
-                                                     action->unclaimed_count_,
-                                                     StarManager::get_star_count(action->stars_));
-    }
-    case telegram_api::messageActionBoostApply::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionBoostApply>(action_ptr);
-      return make_unique<MessageBoostApply>(max(action->boosts_, 0));
-    }
-    case telegram_api::messageActionRequestedPeerSentMe::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionRequestedPeerSentMe>(action_ptr);
-      vector<SharedDialog> shared_dialogs;
-      for (auto &peer : action->peers_) {
-        SharedDialog shared_dialog(td, std::move(peer));
-        if (shared_dialog.is_valid()) {
-          shared_dialogs.push_back(std::move(shared_dialog));
-        }
-      }
-      if (shared_dialogs.size() > 1) {
-        for (auto shared_dialog : shared_dialogs) {
-          if (!shared_dialog.is_user()) {
-            shared_dialogs.clear();
-            break;
-          }
-        }
-      }
-      if (shared_dialogs.empty() || shared_dialogs.size() != action->peers_.size()) {
-        LOG(ERROR) << "Receive invalid " << oneline(to_string(action));
-        break;
-      }
-
-      return td::make_unique<MessageDialogShared>(std::move(shared_dialogs), action->button_id_);
-    }
-    case telegram_api::messageActionPaymentRefunded::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionPaymentRefunded>(action_ptr);
-      if (action->total_amount_ <= 0 || !check_currency_amount(action->total_amount_)) {
-        LOG(ERROR) << "Receive invalid refunded payment amount " << action->total_amount_;
-        action->total_amount_ = 0;
-      }
-      return td::make_unique<MessagePaymentRefunded>(DialogId(action->peer_), std::move(action->currency_),
-                                                     action->total_amount_, action->payload_.as_slice().str(),
-                                                     std::move(action->charge_->id_),
-                                                     std::move(action->charge_->provider_charge_id_));
-    }
-    case telegram_api::messageActionGiftStars::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionGiftStars>(action_ptr);
-      if (action->amount_ <= 0 || !check_currency_amount(action->amount_)) {
-        LOG(ERROR) << "Receive invalid gifted star price " << action->amount_;
-        action->amount_ = 0;
-      }
-      if (action->crypto_currency_.empty()) {
-        if (action->crypto_amount_ != 0) {
-          LOG(ERROR) << "Receive gifted star crypto price " << action->crypto_amount_ << " without currency";
-          action->crypto_amount_ = 0;
-        }
-      } else if (action->crypto_amount_ <= 0) {
-        LOG(ERROR) << "Receive invalid gifted star crypto amount " << action->crypto_amount_;
-        action->crypto_amount_ = 0;
-      }
-      return td::make_unique<MessageGiftStars>(
-          std::move(action->currency_), action->amount_, std::move(action->crypto_currency_), action->crypto_amount_,
-          StarManager::get_star_count(action->stars_), std::move(action->transaction_id_));
-    }
-    case telegram_api::messageActionPrizeStars::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionPrizeStars>(action_ptr);
-      DialogId boosted_dialog_id = DialogId(action->boost_peer_);
-      if (!boosted_dialog_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << oneline(to_string(action));
-        break;
-      }
-      td->dialog_manager_->force_create_dialog(boosted_dialog_id, "messageActionPrizeStars", true);
-      return td::make_unique<MessagePrizeStars>(
-          StarManager::get_star_count(action->stars_), std::move(action->transaction_id_), boosted_dialog_id,
-          MessageId(ServerMessageId(action->giveaway_msg_id_)), action->unclaimed_);
-    }
-    case telegram_api::messageActionStarGift::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionStarGift>(action_ptr);
-      StarGift star_gift(td, std::move(action->gift_), false);
-      if (!star_gift.is_valid() || star_gift.is_unique()) {
-        break;
-      }
-      auto upgrade_message_id = MessageId(ServerMessageId(action->upgrade_msg_id_));
-      if (upgrade_message_id != MessageId() && !upgrade_message_id.is_valid()) {
-        LOG(ERROR) << "Receive " << upgrade_message_id;
-        upgrade_message_id = MessageId();
-      }
-      FormattedText text = get_formatted_text(td->user_manager_.get(), std::move(action->message_), true, false,
-                                              "messageActionStarGift");
-      DialogId gift_sender_dialog_id;
-      DialogId gift_owner_dialog_id;
-      int64 saved_id = 0;
-      if (action->from_id_ != nullptr) {
-        gift_sender_dialog_id = DialogId(action->from_id_);
-      }
-      if (action->peer_ != nullptr) {
-        gift_owner_dialog_id = DialogId(action->peer_);
-        saved_id = action->saved_id_;
-      }
-      return td::make_unique<MessageStarGift>(
-          std::move(star_gift), gift_sender_dialog_id, gift_owner_dialog_id, saved_id, std::move(text),
-          StarManager::get_star_count(action->convert_stars_), StarManager::get_star_count(action->upgrade_stars_),
-          upgrade_message_id, action->name_hidden_, action->saved_, action->can_upgrade_, action->converted_,
-          action->upgraded_, action->refunded_);
-    }
-    case telegram_api::messageActionStarGiftUnique::ID: {
-      auto action = telegram_api::move_object_as<telegram_api::messageActionStarGiftUnique>(action_ptr);
-      StarGift star_gift(td, std::move(action->gift_), true);
-      if (!star_gift.is_valid() || star_gift.is_unique() == action->refunded_) {
-        break;
-      }
-      DialogId gift_sender_dialog_id;
-      DialogId gift_owner_dialog_id;
-      int64 saved_id = 0;
-      if (action->from_id_ != nullptr) {
-        gift_sender_dialog_id = DialogId(action->from_id_);
-      }
-      if (action->peer_ != nullptr) {
-        gift_owner_dialog_id = DialogId(action->peer_);
-        saved_id = action->saved_id_;
-      }
-      return td::make_unique<MessageStarGiftUnique>(
-          std::move(star_gift), gift_sender_dialog_id, gift_owner_dialog_id, saved_id,
-          StarManager::get_star_count(action->transfer_stars_), max(0, action->can_export_at_), action->saved_,
-          action->upgrade_, (action->flags_ & telegram_api::messageActionStarGiftUnique::TRANSFER_STARS_MASK) != 0,
-          action->transferred_, action->refunded_);
-    }
-    case telegram_api::messageActionPaidMessagesRefunded::ID: {
-      auto action = move_tl_object_as<telegram_api::messageActionPaidMessagesRefunded>(action_ptr);
-      return td::make_unique<MessagePaidMessagesRefunded>(max(0, action->count_),
-                                                          StarManager::get_star_count(action->stars_));
-    }
-    case telegram_api::messageActionPaidMessagesPrice::ID: {
-      auto action = move_tl_object_as<telegram_api::messageActionPaidMessagesPrice>(action_ptr);
-      return td::make_unique<MessagePaidMessagesPrice>(StarManager::get_star_count(action->stars_));
-    }
-    default:
-      UNREACHABLE();
-  }
-  // explicit empty or wrong action
-  return td::make_unique<MessageText>(FormattedText(), WebPageId(), false, false, false, string());
-}
-
-td_api::object_ptr<td_api::MessageContent> get_message_content_object(
-    const MessageContent *content, Td *td, DialogId dialog_id, MessageId message_id, bool is_outgoing,
-    DialogId sender_dialog_id, int32 message_date, bool is_content_secret, bool skip_bot_commands,
-    int32 max_media_timestamp, bool invert_media, bool disable_web_page_preview) {
-  CHECK(content != nullptr);
-  auto is_server =
-      message_id != MessageId() && message_id.is_any_server() && dialog_id.get_type() != DialogType::SecretChat;
-  auto get_text_object = [&](const FormattedText &text) {
-    return get_formatted_text_object(is_server ? td->user_manager_.get() : nullptr, text, skip_bot_commands,
-                                     max_media_timestamp);
-  };
-  switch (content->get_type()) {
-    case MessageContentType::Animation: {
-      const auto *m = static_cast<const MessageAnimation *>(content);
-      return make_tl_object<td_api::messageAnimation>(td->animations_manager_->get_animation_object(m->file_id),
-                                                      get_text_object(m->caption), invert_media, m->has_spoiler,
-                                                      is_content_secret);
-    }
-    case MessageContentType::Audio: {
-      const auto *m = static_cast<const MessageAudio *>(content);
-      return make_tl_object<td_api::messageAudio>(td->audios_manager_->get_audio_object(m->file_id),
-                                                  get_text_object(m->caption));
-    }
-    case MessageContentType::Contact: {
-      const auto *m = static_cast<const MessageContact *>(content);
-      return make_tl_object<td_api::messageContact>(m->contact.get_contact_object(td));
-    }
-    case MessageContentType::Document: {
-      const auto *m = static_cast<const MessageDocument *>(content);
-      return make_tl_object<td_api::messageDocument>(
-          td->documents_manager_->get_document_object(m->file_id, PhotoFormat::Jpeg), get_text_object(m->caption));
-    }
-    case MessageContentType::Game: {
-      const auto *m = static_cast<const MessageGame *>(content);
-      return make_tl_object<td_api::messageGame>(m->game.get_game_object(td, is_server, skip_bot_commands));
-    }
-    case MessageContentType::Invoice: {
-      const auto *m = static_cast<const MessageInvoice *>(content);
-      return m->input_invoice.get_message_invoice_object(td, is_server, skip_bot_commands, max_media_timestamp);
-    }
-    case MessageContentType::LiveLocation: {
-      const auto *m = static_cast<const MessageLiveLocation *>(content);
-      auto passed = max(G()->unix_time() - message_date, 0);
-      auto expires_in = m->period == std::numeric_limits<int32>::max() ? m->period : max(0, m->period - passed);
-      auto heading = expires_in == 0 ? 0 : m->heading;
-      auto proximity_alert_radius = expires_in == 0 ? 0 : m->proximity_alert_radius;
-      return make_tl_object<td_api::messageLocation>(m->location.get_location_object(), m->period, expires_in, heading,
-                                                     proximity_alert_radius);
-    }
-    case MessageContentType::Location: {
-      const auto *m = static_cast<const MessageLocation *>(content);
-      return make_tl_object<td_api::messageLocation>(m->location.get_location_object(), 0, 0, 0, 0);
-    }
-    case MessageContentType::Photo: {
-      const auto *m = static_cast<const MessagePhoto *>(content);
-      auto photo = get_photo_object(td->file_manager_.get(), m->photo);
-      if (photo == nullptr) {
-        LOG(ERROR) << "Have empty " << m->photo;
-        return make_tl_object<td_api::messageExpiredPhoto>();
-      }
-      return make_tl_object<td_api::messagePhoto>(std::move(photo), get_text_object(m->caption), invert_media,
-                                                  m->has_spoiler, is_content_secret);
-    }
-    case MessageContentType::Sticker: {
-      const auto *m = static_cast<const MessageSticker *>(content);
-      auto sticker = td->stickers_manager_->get_sticker_object(m->file_id);
-      CHECK(sticker != nullptr);
-      auto is_premium =
-          m->is_premium && sticker->full_type_->get_id() == td_api::stickerFullTypeRegular::ID &&
-          static_cast<const td_api::stickerFullTypeRegular *>(sticker->full_type_.get())->premium_animation_ != nullptr;
-      return make_tl_object<td_api::messageSticker>(std::move(sticker), is_premium);
-    }
-    case MessageContentType::Text: {
-      const auto *m = static_cast<const MessageText *>(content);
-      if (can_be_animated_emoji(m->text) && !m->web_page_id.is_valid()) {
-        auto animated_emoji =
-            td->stickers_manager_->get_animated_emoji_object(m->text.text, get_custom_emoji_id(m->text));
-        if (animated_emoji != nullptr) {
-          return td_api::make_object<td_api::messageAnimatedEmoji>(std::move(animated_emoji), m->text.text);
-        }
-      }
-      auto web_page = td->web_pages_manager_->get_link_preview_object(
-          m->web_page_id, m->force_small_media, m->force_large_media, m->skip_web_page_confirmation, invert_media);
-      if (web_page != nullptr && !web_page->skip_confirmation_ && is_visible_url(m->text, web_page->url_)) {
-        web_page->skip_confirmation_ = true;
-      }
-      if (web_page == nullptr && get_first_url(m->text).empty()) {
-        disable_web_page_preview = false;
-      } else if (disable_web_page_preview && web_page != nullptr) {
-        LOG(ERROR) << "Have " << m->web_page_id << " in a message with link preview disabled";
-        web_page = nullptr;
-      }
-      td_api::object_ptr<td_api::linkPreviewOptions> link_preview_options;
-      if (disable_web_page_preview || !m->web_page_url.empty() || m->force_small_media || m->force_large_media ||
-          invert_media) {
-        link_preview_options = td_api::make_object<td_api::linkPreviewOptions>(
-            disable_web_page_preview, m->web_page_url, m->force_small_media, m->force_large_media, invert_media);
-      }
-      return make_tl_object<td_api::messageText>(get_text_object(m->text), std::move(web_page),
-                                                 std::move(link_preview_options));
-    }
-    case MessageContentType::Unsupported:
-      return make_tl_object<td_api::messageUnsupported>();
-    case MessageContentType::Venue: {
-      const auto *m = static_cast<const MessageVenue *>(content);
-      return make_tl_object<td_api::messageVenue>(m->venue.get_venue_object());
-    }
-    case MessageContentType::Video: {
-      const auto *m = static_cast<const MessageVideo *>(content);
-      vector<td_api::object_ptr<td_api::alternativeVideo>> alternative_videos;
-      if (!td->option_manager_->get_option_boolean("video_ignore_alt_documents")) {
-        for (auto file_id : m->alternative_file_ids) {
-          auto video = td->videos_manager_->get_alternative_video_object(file_id, m->hls_file_ids);
-          if (video != nullptr) {
-            alternative_videos.push_back(std::move(video));
-          }
-        }
-      }
-      return make_tl_object<td_api::messageVideo>(
-          td->videos_manager_->get_video_object(m->file_id), std::move(alternative_videos),
-          get_photo_object(td->file_manager_.get(), m->cover), m->start_timestamp, get_text_object(m->caption),
-          invert_media, m->has_spoiler, is_content_secret);
-    }
-    case MessageContentType::VideoNote: {
-      const auto *m = static_cast<const MessageVideoNote *>(content);
-      return make_tl_object<td_api::messageVideoNote>(td->video_notes_manager_->get_video_note_object(m->file_id),
-                                                      m->is_viewed, is_content_secret);
-    }
-    case MessageContentType::VoiceNote: {
-      const auto *m = static_cast<const MessageVoiceNote *>(content);
-      return make_tl_object<td_api::messageVoiceNote>(td->voice_notes_manager_->get_voice_note_object(m->file_id),
-                                                      get_text_object(m->caption), m->is_listened);
-    }
-    case MessageContentType::ChatCreate: {
-      const auto *m = static_cast<const MessageChatCreate *>(content);
-      return make_tl_object<td_api::messageBasicGroupChatCreate>(
-          m->title, td->user_manager_->get_user_ids_object(m->participant_user_ids, "MessageChatCreate"));
-    }
-    case MessageContentType::ChatChangeTitle: {
-      const auto *m = static_cast<const MessageChatChangeTitle *>(content);
-      return make_tl_object<td_api::messageChatChangeTitle>(m->title);
-    }
-    case MessageContentType::ChatChangePhoto: {
-      const auto *m = static_cast<const MessageChatChangePhoto *>(content);
-      auto photo = get_chat_photo_object(td->file_manager_.get(), m->photo);
-      if (photo == nullptr) {
-        LOG(ERROR) << "Have empty chat " << m->photo;
-        return make_tl_object<td_api::messageChatDeletePhoto>();
-      }
-      return make_tl_object<td_api::messageChatChangePhoto>(std::move(photo));
-    }
-    case MessageContentType::ChatDeletePhoto:
-      return make_tl_object<td_api::messageChatDeletePhoto>();
-    case MessageContentType::ChatDeleteHistory:
-      return make_tl_object<td_api::messageUnsupported>();
-    case MessageContentType::ChatAddUsers: {
-      const auto *m = static_cast<const MessageChatAddUsers *>(content);
-      return make_tl_object<td_api::messageChatAddMembers>(
-          td->user_manager_->get_user_ids_object(m->user_ids, "MessageChatAddUsers"));
-    }
-    case MessageContentType::ChatJoinedByLink: {
-      const MessageChatJoinedByLink *m = static_cast<const MessageChatJoinedByLink *>(content);
-      if (m->is_approved) {
-        return make_tl_object<td_api::messageChatJoinByRequest>();
-      }
-      return make_tl_object<td_api::messageChatJoinByLink>();
-    }
-    case MessageContentType::ChatDeleteUser: {
-      const auto *m = static_cast<const MessageChatDeleteUser *>(content);
-      return make_tl_object<td_api::messageChatDeleteMember>(
-          td->user_manager_->get_user_id_object(m->user_id, "MessageChatDeleteMember"));
-    }
-    case MessageContentType::ChatMigrateTo: {
-      const auto *m = static_cast<const MessageChatMigrateTo *>(content);
-      return make_tl_object<td_api::messageChatUpgradeTo>(
-          td->chat_manager_->get_supergroup_id_object(m->migrated_to_channel_id, "MessageChatUpgradeTo"));
-    }
-    case MessageContentType::ChannelCreate: {
-      const auto *m = static_cast<const MessageChannelCreate *>(content);
-      return make_tl_object<td_api::messageSupergroupChatCreate>(m->title);
-    }
-    case MessageContentType::ChannelMigrateFrom: {
-      const auto *m = static_cast<const MessageChannelMigrateFrom *>(content);
-      return make_tl_object<td_api::messageChatUpgradeFrom>(
-          m->title, td->chat_manager_->get_basic_group_id_object(m->migrated_from_chat_id, "MessageChatUpgradeFrom"));
-    }
-    case MessageContentType::PinMessage: {
-      const auto *m = static_cast<const MessagePinMessage *>(content);
-      return make_tl_object<td_api::messagePinMessage>(m->message_id.get());
-    }
-    case MessageContentType::GameScore: {
-      const auto *m = static_cast<const MessageGameScore *>(content);
-      return make_tl_object<td_api::messageGameScore>(m->game_message_id.get(), m->game_id, m->score);
-    }
-    case MessageContentType::ScreenshotTaken:
-      return make_tl_object<td_api::messageScreenshotTaken>();
-    case MessageContentType::ChatSetTtl: {
-      const auto *m = static_cast<const MessageChatSetTtl *>(content);
-      return make_tl_object<td_api::messageChatSetMessageAutoDeleteTime>(
-          m->ttl, td->user_manager_->get_user_id_object(m->from_user_id, "MessageChatSetTtl"));
-    }
-    case MessageContentType::Call: {
-      const auto *m = static_cast<const MessageCall *>(content);
-      return make_tl_object<td_api::messageCall>(m->is_video, get_call_discard_reason_object(m->discard_reason),
-                                                 m->duration);
-    }
-    case MessageContentType::PaymentSuccessful: {
-      const auto *m = static_cast<const MessagePaymentSuccessful *>(content);
-      if (!m->telegram_payment_charge_id.empty() || !m->provider_payment_charge_id.empty()) {
-        return make_tl_object<td_api::messagePaymentSuccessfulBot>(
-            m->currency, m->total_amount, m->subscription_until_date, m->is_recurring, m->is_first_recurring,
-            m->invoice_payload, m->shipping_option_id, get_order_info_object(m->order_info),
-            m->telegram_payment_charge_id, m->provider_payment_charge_id);
-      } else {
-        auto invoice_dialog_id = m->invoice_dialog_id.is_valid() ? m->invoice_dialog_id : dialog_id;
-        return make_tl_object<td_api::messagePaymentSuccessful>(
-            td->dialog_manager_->get_chat_id_object(invoice_dialog_id, "messagePaymentSuccessful"),
-            m->invoice_message_id.get(), m->currency, m->total_amount, m->subscription_until_date, m->is_recurring,
-            m->is_first_recurring, m->invoice_payload);
-      }
-    }
-    case MessageContentType::ContactRegistered:
-      return make_tl_object<td_api::messageContactRegistered>();
-    case MessageContentType::ExpiredPhoto:
-      return make_tl_object<td_api::messageExpiredPhoto>();
-    case MessageContentType::ExpiredVideo:
-      return make_tl_object<td_api::messageExpiredVideo>();
-    case MessageContentType::CustomServiceAction: {
-      const auto *m = static_cast<const MessageCustomServiceAction *>(content);
-      return make_tl_object<td_api::messageCustomServiceAction>(m->message);
-    }
-    case MessageContentType::WebsiteConnected: {
-      const auto *m = static_cast<const MessageWebsiteConnected *>(content);
-      return td_api::make_object<td_api::messageBotWriteAccessAllowed>(
-          td_api::make_object<td_api::botWriteAccessAllowReasonConnectedWebsite>(m->domain_name));
-    }
-    case MessageContentType::PassportDataSent: {
-      const auto *m = static_cast<const MessagePassportDataSent *>(content);
-      return make_tl_object<td_api::messagePassportDataSent>(get_passport_element_types_object(m->types));
-    }
-    case MessageContentType::PassportDataReceived: {
-      const auto *m = static_cast<const MessagePassportDataReceived *>(content);
-      return make_tl_object<td_api::messagePassportDataReceived>(
-          get_encrypted_passport_element_object(td->file_manager_.get(), m->values),
-          get_encrypted_credentials_object(m->credentials));
-    }
-    case MessageContentType::Poll: {
-      const auto *m = static_cast<const MessagePoll *>(content);
-      return make_tl_object<td_api::messagePoll>(td->poll_manager_->get_poll_object(m->poll_id));
-    }
-    case MessageContentType::Dice: {
-      const auto *m = static_cast<const MessageDice *>(content);
-      auto initial_state = td->stickers_manager_->get_dice_stickers_object(m->emoji, 0);
-      auto final_state =
-          m->dice_value == 0 ? nullptr : td->stickers_manager_->get_dice_stickers_object(m->emoji, m->dice_value);
-      auto success_animation_frame_number =
-          td->stickers_manager_->get_dice_success_animation_frame_number(m->emoji, m->dice_value);
-      return make_tl_object<td_api::messageDice>(std::move(initial_state), std::move(final_state), m->emoji,
-                                                 m->dice_value, success_animation_frame_number);
-    }
-    case MessageContentType::ProximityAlertTriggered: {
-      const auto *m = static_cast<const MessageProximityAlertTriggered *>(content);
-      return make_tl_object<td_api::messageProximityAlertTriggered>(
-          get_message_sender_object(td, m->traveler_dialog_id, "messageProximityAlertTriggered 1"),
-          get_message_sender_object(td, m->watcher_dialog_id, "messageProximityAlertTriggered 2"), m->distance);
-    }
-    case MessageContentType::GroupCall: {
-      const auto *m = static_cast<const MessageGroupCall *>(content);
-      if (m->duration >= 0) {
-        return make_tl_object<td_api::messageVideoChatEnded>(m->duration);
-      } else {
-        auto group_call_id = td->group_call_manager_->get_group_call_id(m->input_group_call_id, DialogId()).get();
-        if (m->schedule_date > 0) {
-          return make_tl_object<td_api::messageVideoChatScheduled>(group_call_id, m->schedule_date);
-        } else {
-          return make_tl_object<td_api::messageVideoChatStarted>(group_call_id);
-        }
-      }
-    }
-    case MessageContentType::InviteToGroupCall: {
-      const auto *m = static_cast<const MessageInviteToGroupCall *>(content);
-      return make_tl_object<td_api::messageInviteVideoChatParticipants>(
-          td->group_call_manager_->get_group_call_id(m->input_group_call_id, DialogId()).get(),
-          td->user_manager_->get_user_ids_object(m->user_ids, "MessageInviteToGroupCall"));
-    }
-    case MessageContentType::ChatSetTheme: {
-      const auto *m = static_cast<const MessageChatSetTheme *>(content);
-      return make_tl_object<td_api::messageChatSetTheme>(m->emoji);
-    }
-    case MessageContentType::WebViewDataSent: {
-      const auto *m = static_cast<const MessageWebViewDataSent *>(content);
-      return make_tl_object<td_api::messageWebAppDataSent>(m->button_text);
-    }
-    case MessageContentType::WebViewDataReceived: {
-      const auto *m = static_cast<const MessageWebViewDataReceived *>(content);
-      return make_tl_object<td_api::messageWebAppDataReceived>(m->button_text, m->data);
-    }
-    case MessageContentType::GiftPremium: {
-      const auto *m = static_cast<const MessageGiftPremium *>(content);
-      int64 gifter_user_id = 0;
-      int64 receiver_user_id = 0;
-      if (dialog_id.get_type() == DialogType::User) {
-        auto user_id = dialog_id.get_user_id();
-        if (is_outgoing) {
-          receiver_user_id = td->user_manager_->get_user_id_object(user_id, "MessageGiftPremium 2");
-        } else {
-          if (user_id != UserManager::get_service_notifications_user_id() && !td->user_manager_->is_user_bot(user_id) &&
-              !td->user_manager_->is_user_support(user_id)) {
-            gifter_user_id = td->user_manager_->get_user_id_object(user_id, "MessageGiftPremium 3");
-          }
-        }
-      } else {
-        LOG(ERROR) << "Receive gifted premium in " << dialog_id;
-      }
-      return td_api::make_object<td_api::messageGiftedPremium>(
-          gifter_user_id, receiver_user_id, get_text_object(m->text), m->currency, m->amount, m->crypto_currency,
-          m->crypto_amount, m->months, td->stickers_manager_->get_premium_gift_sticker_object(m->months, 0));
-    }
-    case MessageContentType::TopicCreate: {
-      const auto *m = static_cast<const MessageTopicCreate *>(content);
-      return td_api::make_object<td_api::messageForumTopicCreated>(m->title, m->icon.get_forum_topic_icon_object());
-    }
-    case MessageContentType::TopicEdit: {
-      const auto *m = static_cast<const MessageTopicEdit *>(content);
-      return m->edited_data.get_message_content_object();
-    }
-    case MessageContentType::SuggestProfilePhoto: {
-      const auto *m = static_cast<const MessageSuggestProfilePhoto *>(content);
-      auto photo = get_chat_photo_object(td->file_manager_.get(), m->photo);
-      if (photo == nullptr) {
-        LOG(ERROR) << "Have empty suggested profile " << m->photo;
-        return make_tl_object<td_api::messageUnsupported>();
-      }
-      return make_tl_object<td_api::messageSuggestProfilePhoto>(std::move(photo));
-    }
-    case MessageContentType::WriteAccessAllowed:
-      return td_api::make_object<td_api::messageBotWriteAccessAllowed>(
-          td_api::make_object<td_api::botWriteAccessAllowReasonAddedToAttachmentMenu>());
-    case MessageContentType::RequestedDialog: {
-      const auto *m = static_cast<const MessageRequestedDialog *>(content);
-      CHECK(!m->shared_dialog_ids.empty());
-      if (m->shared_dialog_ids[0].get_type() == DialogType::User) {
-        vector<td_api::object_ptr<td_api::sharedUser>> users;
-        for (auto shared_dialog_id : m->shared_dialog_ids) {
-          users.push_back(SharedDialog(shared_dialog_id).get_shared_user_object(td));
-        }
-        return make_tl_object<td_api::messageUsersShared>(std::move(users), m->button_id);
-      }
-      CHECK(m->shared_dialog_ids.size() == 1);
-      return make_tl_object<td_api::messageChatShared>(SharedDialog(m->shared_dialog_ids[0]).get_shared_chat_object(td),
-                                                       m->button_id);
-    }
-    case MessageContentType::WebViewWriteAccessAllowed: {
-      const auto *m = static_cast<const MessageWebViewWriteAccessAllowed *>(content);
-      return td_api::make_object<td_api::messageBotWriteAccessAllowed>(
-          td_api::make_object<td_api::botWriteAccessAllowReasonLaunchedWebApp>(m->web_app.get_web_app_object(td)));
-    }
-    case MessageContentType::SetBackground: {
-      const auto *m = static_cast<const MessageSetBackground *>(content);
-      return td_api::make_object<td_api::messageChatSetBackground>(
-          m->old_message_id.get(), m->background_info.get_chat_background_object(td), !m->for_both);
-    }
-    case MessageContentType::Story: {
-      const auto *m = static_cast<const MessageStory *>(content);
-      return td_api::make_object<td_api::messageStory>(
-          td->dialog_manager_->get_chat_id_object(m->story_full_id.get_dialog_id(), "messageStory"),
-          m->story_full_id.get_story_id().get(), m->via_mention);
-    }
-    case MessageContentType::WriteAccessAllowedByRequest:
-      return td_api::make_object<td_api::messageBotWriteAccessAllowed>(
-          td_api::make_object<td_api::botWriteAccessAllowReasonAcceptedRequest>());
-    case MessageContentType::GiftCode: {
-      const auto *m = static_cast<const MessageGiftCode *>(content);
-      return td_api::make_object<td_api::messagePremiumGiftCode>(
-          m->creator_dialog_id.is_valid()
-              ? get_message_sender_object(td, m->creator_dialog_id, "messagePremiumGiftCode")
-              : nullptr,
-          get_text_object(m->text), m->via_giveaway, m->is_unclaimed, m->currency, m->amount, m->crypto_currency,
-          m->crypto_amount, m->months, td->stickers_manager_->get_premium_gift_sticker_object(m->months, 0), m->code);
-    }
-    case MessageContentType::Giveaway: {
-      const auto *m = static_cast<const MessageGiveaway *>(content);
-      td_api::object_ptr<td_api::GiveawayPrize> prize;
-      if (m->months != 0) {
-        prize = td_api::make_object<td_api::giveawayPrizePremium>(m->months);
-      } else {
-        prize = td_api::make_object<td_api::giveawayPrizeStars>(m->star_count);
-      }
-      return td_api::make_object<td_api::messageGiveaway>(
-          m->giveaway_parameters.get_giveaway_parameters_object(td), m->quantity, std::move(prize),
-          td->stickers_manager_->get_premium_gift_sticker_object(m->months, m->star_count));
-    }
-    case MessageContentType::GiveawayLaunch: {
-      const auto *m = static_cast<const MessageGiveawayLaunch *>(content);
-      return td_api::make_object<td_api::messageGiveawayCreated>(m->star_count);
-    }
-    case MessageContentType::GiveawayResults: {
-      const auto *m = static_cast<const MessageGiveawayResults *>(content);
-      return td_api::make_object<td_api::messageGiveawayCompleted>(m->giveaway_message_id.get(), m->winner_count,
-                                                                   m->is_star_giveaway, m->unclaimed_count);
-    }
-    case MessageContentType::GiveawayWinners: {
-      const auto *m = static_cast<const MessageGiveawayWinners *>(content);
-      td_api::object_ptr<td_api::GiveawayPrize> prize;
-      if (m->month_count != 0) {
-        prize = td_api::make_object<td_api::giveawayPrizePremium>(m->month_count);
-      } else {
-        prize = td_api::make_object<td_api::giveawayPrizeStars>(m->star_count);
-      }
-      return td_api::make_object<td_api::messageGiveawayWinners>(
-          td->dialog_manager_->get_chat_id_object(DialogId(m->boosted_channel_id), "messageGiveawayWinners"),
-          m->giveaway_message_id.get(), m->additional_dialog_count, m->winners_selection_date, m->only_new_subscribers,
-          m->was_refunded, std::move(prize), m->prize_description, m->winner_count,
-          td->user_manager_->get_user_ids_object(m->winner_user_ids, "messageGiveawayWinners"), m->unclaimed_count);
-    }
-    case MessageContentType::ExpiredVideoNote:
-      return make_tl_object<td_api::messageExpiredVideoNote>();
-    case MessageContentType::ExpiredVoiceNote:
-      return make_tl_object<td_api::messageExpiredVoiceNote>();
-    case MessageContentType::BoostApply: {
-      const auto *m = static_cast<const MessageBoostApply *>(content);
-      return td_api::make_object<td_api::messageChatBoost>(m->boost_count);
-    }
-    case MessageContentType::DialogShared: {
-      const auto *m = static_cast<const MessageDialogShared *>(content);
-      CHECK(!m->shared_dialogs.empty());
-      if (m->shared_dialogs[0].is_user()) {
-        vector<td_api::object_ptr<td_api::sharedUser>> users;
-        for (const auto &shared_dialog : m->shared_dialogs) {
-          users.push_back(shared_dialog.get_shared_user_object(td));
-        }
-        return td_api::make_object<td_api::messageUsersShared>(std::move(users), m->button_id);
-      }
-      CHECK(m->shared_dialogs.size() == 1);
-      return td_api::make_object<td_api::messageChatShared>(m->shared_dialogs[0].get_shared_chat_object(td),
-                                                            m->button_id);
-    }
-    case MessageContentType::PaidMedia: {
-      const auto *m = static_cast<const MessagePaidMedia *>(content);
-      return td_api::make_object<td_api::messagePaidMedia>(
-          m->star_count, transform(m->media, [&](const auto &media) { return media.get_paid_media_object(td); }),
-          get_text_object(m->caption), invert_media);
-    }
-    case MessageContentType::PaymentRefunded: {
-      const auto *m = static_cast<const MessagePaymentRefunded *>(content);
-      return td_api::make_object<td_api::messagePaymentRefunded>(
-          get_message_sender_object(td, m->dialog_id, "messagePaymentRefunded"), m->currency, m->total_amount,
-          m->invoice_payload, m->telegram_payment_charge_id, m->provider_payment_charge_id);
-    }
-    case MessageContentType::GiftStars: {
-      const auto *m = static_cast<const MessageGiftStars *>(content);
-      int64 gifter_user_id = 0;
-      int64 receiver_user_id = 0;
-      if (dialog_id.get_type() == DialogType::User) {
-        auto user_id = dialog_id.get_user_id();
-        if (is_outgoing) {
-          receiver_user_id = td->user_manager_->get_user_id_object(user_id, "MessageGiftStars 2");
-        } else {
-          if (user_id != UserManager::get_service_notifications_user_id() && !td->user_manager_->is_user_bot(user_id) &&
-              !td->user_manager_->is_user_support(user_id)) {
-            gifter_user_id = td->user_manager_->get_user_id_object(user_id, "MessageGiftStars 3");
-          }
-        }
-      } else {
-        LOG(ERROR) << "Receive gifted stars in " << dialog_id;
-      }
-      return td_api::make_object<td_api::messageGiftedStars>(
-          gifter_user_id, receiver_user_id, m->currency, m->amount, m->crypto_currency, m->crypto_amount, m->star_count,
-          m->transaction_id, td->stickers_manager_->get_premium_gift_sticker_object(0, m->star_count));
-    }
-    case MessageContentType::PrizeStars: {
-      const auto *m = static_cast<const MessagePrizeStars *>(content);
-      return td_api::make_object<td_api::messageGiveawayPrizeStars>(
-          m->star_count, m->transaction_id,
-          td->dialog_manager_->get_chat_id_object(m->boosted_dialog_id, "messageGiveawayPrizeStars"),
-          m->giveaway_message_id.get(), m->is_unclaimed,
-          td->stickers_manager_->get_premium_gift_sticker_object(0, m->star_count));
-    }
-    case MessageContentType::StarGift: {
-      const auto *m = static_cast<const MessageStarGift *>(content);
-      StarGiftId star_gift_id;
-      if (m->owner_dialog_id != DialogId()) {
-        star_gift_id = StarGiftId(m->owner_dialog_id, m->saved_id);
-      } else if (dialog_id.get_type() == DialogType::User && !is_outgoing && is_server && message_id.is_server()) {
-        auto user_id = dialog_id.get_user_id();
-        if (user_id != UserManager::get_service_notifications_user_id()) {
-          star_gift_id = StarGiftId(message_id.get_server_message_id());
-        }
-      }
-      if (m->sender_dialog_id != DialogId()) {
-        sender_dialog_id = m->sender_dialog_id;
-      }
-      return td_api::make_object<td_api::messageGift>(
-          m->star_gift.get_gift_object(td), get_message_sender_object(td, sender_dialog_id, "messageGift"),
-          star_gift_id.get_star_gift_id(), get_text_object(m->text), m->convert_star_count, m->upgrade_star_count,
-          m->name_hidden, m->is_saved, m->can_upgrade, m->was_converted, m->was_upgraded, m->was_refunded,
-          StarGiftId(m->upgrade_message_id.get_server_message_id()).get_star_gift_id());
-    }
-    case MessageContentType::StarGiftUnique: {
-      const auto *m = static_cast<const MessageStarGiftUnique *>(content);
-      if (m->sender_dialog_id != DialogId()) {
-        sender_dialog_id = m->sender_dialog_id;
-      }
-      if (m->was_refunded) {
-        return td_api::make_object<td_api::messageRefundedUpgradedGift>(
-            m->star_gift.get_gift_object(td),
-            get_message_sender_object(td, sender_dialog_id, "messageRefundedUpgradedGift"), m->is_upgrade);
-      }
-      StarGiftId star_gift_id;
-      if (m->owner_dialog_id != DialogId()) {
-        star_gift_id = StarGiftId(m->owner_dialog_id, m->saved_id);
-      } else if (dialog_id.get_type() == DialogType::User && m->is_upgrade == is_outgoing && is_server &&
-                 message_id.is_server()) {
-        auto user_id = dialog_id.get_user_id();
-        if (user_id != UserManager::get_service_notifications_user_id() || m->is_upgrade) {
-          star_gift_id = StarGiftId(message_id.get_server_message_id());
-        }
-      }
-      return td_api::make_object<td_api::messageUpgradedGift>(
-          m->star_gift.get_upgraded_gift_object(td),
-          sender_dialog_id == DialogId(UserManager::get_service_notifications_user_id())
-              ? nullptr
-              : get_message_sender_object(td, sender_dialog_id, "messageUpgradedGift"),
-          star_gift_id.get_star_gift_id(), m->is_upgrade, m->is_saved, m->can_transfer, m->was_transferred,
-          m->transfer_star_count, m->can_export_at);
-    }
-    case MessageContentType::PaidMessagesRefunded: {
-      const auto *m = static_cast<const MessagePaidMessagesRefunded *>(content);
-      return td_api::make_object<td_api::messagePaidMessagesRefunded>(m->message_count, m->star_count);
-    }
-    case MessageContentType::PaidMessagesPrice: {
-      const auto *m = static_cast<const MessagePaidMessagesPrice *>(content);
-      return td_api::make_object<td_api::messagePaidMessagePriceChanged>(m->star_count);
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-  UNREACHABLE();
-  return nullptr;
-}
-
-td_api::object_ptr<td_api::upgradeGiftResult> get_message_content_upgrade_gift_result_object(
-    const MessageContent *content, Td *td, DialogId dialog_id, MessageId message_id) {
-  switch (content->get_type()) {
-    case MessageContentType::StarGiftUnique: {
-      const auto *m = static_cast<const MessageStarGiftUnique *>(content);
-      StarGiftId star_gift_id;
-      if (m->owner_dialog_id != DialogId()) {
-        star_gift_id = StarGiftId(m->owner_dialog_id, m->saved_id);
-      } else if (dialog_id.get_type() == DialogType::User && message_id.is_valid() && message_id.is_server()) {
-        star_gift_id = StarGiftId(message_id.get_server_message_id());
-      }
-      return td_api::make_object<td_api::upgradeGiftResult>(m->star_gift.get_upgraded_gift_object(td),
-                                                            star_gift_id.get_star_gift_id(), m->is_saved,
-                                                            m->can_transfer, m->transfer_star_count, m->can_export_at);
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-FormattedText *get_message_content_text_mutable(MessageContent *content) {
-  return const_cast<FormattedText *>(get_message_content_text(content));
-}
-
-const FormattedText *get_message_content_text(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Text:
-      return &static_cast<const MessageText *>(content)->text;
-    case MessageContentType::Game:
-      return &static_cast<const MessageGame *>(content)->game.get_text();
-    case MessageContentType::GiftPremium:
-      return &static_cast<const MessageGiftPremium *>(content)->text;
-    case MessageContentType::GiftCode:
-      return &static_cast<const MessageGiftCode *>(content)->text;
-    case MessageContentType::StarGift:
-      return &static_cast<const MessageStarGift *>(content)->text;
-    default:
-      return get_message_content_caption(content);
-  }
-}
-
-const FormattedText *get_message_content_caption(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Animation:
-      return &static_cast<const MessageAnimation *>(content)->caption;
-    case MessageContentType::Audio:
-      return &static_cast<const MessageAudio *>(content)->caption;
-    case MessageContentType::Document:
-      return &static_cast<const MessageDocument *>(content)->caption;
-    case MessageContentType::Invoice:
-      return static_cast<const MessageInvoice *>(content)->input_invoice.get_caption();
-    case MessageContentType::PaidMedia:
-      return &static_cast<const MessagePaidMedia *>(content)->caption;
-    case MessageContentType::Photo:
-      return &static_cast<const MessagePhoto *>(content)->caption;
-    case MessageContentType::Video:
-      return &static_cast<const MessageVideo *>(content)->caption;
-    case MessageContentType::VoiceNote:
-      return &static_cast<const MessageVoiceNote *>(content)->caption;
-    default:
-      return nullptr;
-  }
-}
-
-static bool get_message_content_has_spoiler(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Animation:
-      return static_cast<const MessageAnimation *>(content)->has_spoiler;
-    case MessageContentType::Photo:
-      return static_cast<const MessagePhoto *>(content)->has_spoiler;
-    case MessageContentType::Video:
-      return static_cast<const MessageVideo *>(content)->has_spoiler;
-    default:
-      return false;
-  }
-}
-
-static void set_message_content_has_spoiler(MessageContent *content, bool has_spoiler) {
-  switch (content->get_type()) {
-    case MessageContentType::Animation:
-      static_cast<MessageAnimation *>(content)->has_spoiler = has_spoiler;
-      break;
-    case MessageContentType::Photo:
-      static_cast<MessagePhoto *>(content)->has_spoiler = has_spoiler;
-      break;
-    case MessageContentType::Video:
-      static_cast<MessageVideo *>(content)->has_spoiler = has_spoiler;
-      break;
-    default:
-      break;
-  }
-}
-
-unique_ptr<MessageContent> get_uploaded_message_content(
-    Td *td, const MessageContent *old_content, int32 media_pos,
-    telegram_api::object_ptr<telegram_api::MessageMedia> &&media_ptr, DialogId owner_dialog_id, int32 message_date,
-    const char *source) {
-  if (media_pos >= 0) {
-    CHECK(old_content->get_type() == MessageContentType::PaidMedia);
-    auto paid_media = static_cast<const MessagePaidMedia *>(old_content);
-    CHECK(static_cast<size_t>(media_pos) < paid_media->media.size());
-    auto content = make_unique<MessagePaidMedia>(*paid_media);
-    auto media = MessageExtendedMedia(td, std::move(media_ptr), owner_dialog_id);
-    if (!media.has_input_media()) {
-      if (!media.is_unsupported()) {
-        LOG(ERROR) << "Receive invalid uploaded paid media";
-      }
-    } else {
-      bool is_content_changed = false;
-      bool need_update = false;
-      content->media[media_pos].merge_files(td, media, owner_dialog_id, true, is_content_changed, need_update);
-    }
-    return std::move(content);
-  }
-  auto caption = get_message_content_caption(old_content);
-  auto has_spoiler = get_message_content_has_spoiler(old_content);
-  auto content = get_message_content(td, caption == nullptr ? FormattedText() : *caption, std::move(media_ptr),
-                                     owner_dialog_id, message_date, false, UserId(), nullptr, nullptr, source);
-  set_message_content_has_spoiler(content.get(), has_spoiler);
-  return content;
-}
-
-int64 get_message_content_star_count(const MessageContent *content) {
-  CHECK(content->get_type() == MessageContentType::PaidMedia);
-  return static_cast<const MessagePaidMedia *>(content)->star_count;
-}
-
-string get_message_content_payload(const MessageContent *content) {
-  CHECK(content->get_type() == MessageContentType::PaidMedia);
-  return static_cast<const MessagePaidMedia *>(content)->payload;
-}
-
-int32 get_message_content_duration(const MessageContent *content, const Td *td) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Animation: {
-      auto animation_file_id = static_cast<const MessageAnimation *>(content)->file_id;
-      return td->animations_manager_->get_animation_duration(animation_file_id);
-    }
-    case MessageContentType::Audio: {
-      auto audio_file_id = static_cast<const MessageAudio *>(content)->file_id;
-      return td->audios_manager_->get_audio_duration(audio_file_id);
-    }
-    case MessageContentType::Invoice:
-      return static_cast<const MessageInvoice *>(content)->input_invoice.get_duration(td);
-    case MessageContentType::PaidMedia: {
-      int32 result = -1;
-      for (auto &media : static_cast<const MessagePaidMedia *>(content)->media) {
-        result = max(result, media.get_duration(td));
-      }
-      return result;
-    }
-    case MessageContentType::Video: {
-      auto video_file_id = static_cast<const MessageVideo *>(content)->file_id;
-      return td->videos_manager_->get_video_duration(video_file_id);
-    }
-    case MessageContentType::VideoNote: {
-      auto video_note_file_id = static_cast<const MessageVideoNote *>(content)->file_id;
-      return td->video_notes_manager_->get_video_note_duration(video_note_file_id);
-    }
-    case MessageContentType::VoiceNote: {
-      auto voice_file_id = static_cast<const MessageVoiceNote *>(content)->file_id;
-      return td->voice_notes_manager_->get_voice_note_duration(voice_file_id);
-    }
-    default:
-      return -1;
-  }
-}
-
-int32 get_message_content_media_duration(const MessageContent *content, const Td *td) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Audio: {
-      auto audio_file_id = static_cast<const MessageAudio *>(content)->file_id;
-      return td->audios_manager_->get_audio_duration(audio_file_id);
-    }
-    case MessageContentType::Invoice:
-      return static_cast<const MessageInvoice *>(content)->input_invoice.get_duration(td);
-    case MessageContentType::PaidMedia: {
-      int32 result = -1;
-      for (const auto &media : static_cast<const MessagePaidMedia *>(content)->media) {
-        result = max(result, media.get_duration(td));
-      }
-      return result;
-    }
-    case MessageContentType::Story: {
-      auto story_full_id = static_cast<const MessageStory *>(content)->story_full_id;
-      return td->story_manager_->get_story_duration(story_full_id);
-    }
-    case MessageContentType::Text: {
-      auto web_page_id = static_cast<const MessageText *>(content)->web_page_id;
-      return td->web_pages_manager_->get_web_page_media_duration(web_page_id);
-    }
-    case MessageContentType::Video: {
-      auto video_file_id = static_cast<const MessageVideo *>(content)->file_id;
-      return td->videos_manager_->get_video_duration(video_file_id);
-    }
-    case MessageContentType::VideoNote: {
-      auto video_note_file_id = static_cast<const MessageVideoNote *>(content)->file_id;
-      return td->video_notes_manager_->get_video_note_duration(video_note_file_id);
-    }
-    case MessageContentType::VoiceNote: {
-      auto voice_file_id = static_cast<const MessageVoiceNote *>(content)->file_id;
-      return td->voice_notes_manager_->get_voice_note_duration(voice_file_id);
-    }
-    default:
-      return -1;
-  }
-}
-
-const Photo *get_message_content_cover(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Video: {
-      const auto *cover = &static_cast<const MessageVideo *>(content)->cover;
-      if (cover->is_empty()) {
-        return nullptr;
-      }
-      return cover;
-    }
-    default:
-      return nullptr;
-  }
-}
-
-vector<const Photo *> get_message_content_need_to_upload_covers(Td *td, const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Video: {
-      const auto *cover = &static_cast<const MessageVideo *>(content)->cover;
-      if (cover->is_empty() ||
-          photo_get_cover_input_media(td->file_manager_.get(), *cover, td->auth_manager_->is_bot(), false) != nullptr) {
-        break;
-      }
-      return {cover};
-    }
-    case MessageContentType::PaidMedia: {
-      vector<const Photo *> result;
-      for (const auto &media : static_cast<const MessagePaidMedia *>(content)->media) {
-        const auto *cover = media.get_video_cover();
-        if (cover == nullptr || cover->is_empty() ||
-            photo_get_cover_input_media(td->file_manager_.get(), *cover, td->auth_manager_->is_bot(), false) !=
-                nullptr) {
-          continue;
-        }
-        result.push_back(cover);
-      }
-      return result;
-    }
-    default:
-      break;
-  }
-  return {};
-}
-
-const Photo *get_message_content_photo(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Photo:
-      return &static_cast<const MessagePhoto *>(content)->photo;
-    default:
-      break;
-  }
-  return nullptr;
-}
-
-FileId get_message_content_any_file_id(const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Animation:
-      return static_cast<const MessageAnimation *>(content)->file_id;
-    case MessageContentType::Audio:
-      return static_cast<const MessageAudio *>(content)->file_id;
-    case MessageContentType::Document:
-      return static_cast<const MessageDocument *>(content)->file_id;
-    case MessageContentType::Invoice:
-      return static_cast<const MessageInvoice *>(content)->input_invoice.get_any_file_id();
-    case MessageContentType::Photo:
-      return get_photo_any_file_id(static_cast<const MessagePhoto *>(content)->photo);
-    case MessageContentType::Sticker:
-      return static_cast<const MessageSticker *>(content)->file_id;
-    case MessageContentType::Video:
-      return static_cast<const MessageVideo *>(content)->file_id;
-    case MessageContentType::VideoNote:
-      return static_cast<const MessageVideoNote *>(content)->file_id;
-    case MessageContentType::VoiceNote:
-      return static_cast<const MessageVoiceNote *>(content)->file_id;
-    case MessageContentType::PaidMedia:
-      UNREACHABLE();
-      break;
-    default:
-      break;
-  }
-  return FileId();
-}
-
-vector<FileId> get_message_content_any_file_ids(const MessageContent *content) {
-  if (content->get_type() == MessageContentType::PaidMedia) {
-    return transform(static_cast<const MessagePaidMedia *>(content)->media,
-                     [](const MessageExtendedMedia &media) { return media.get_any_file_id(); });
-  }
-  auto file_id = get_message_content_any_file_id(content);
-  if (file_id.is_valid()) {
-    return {file_id};
-  }
-  return {};
-}
-
-FileId get_message_content_cover_any_file_id(const MessageContent *content) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Video: {
-      auto video = static_cast<const MessageVideo *>(content);
-      if (!video->cover.is_empty()) {
-        return get_photo_any_file_id(video->cover);
-      }
-      break;
-    }
-    case MessageContentType::PaidMedia:
-      UNREACHABLE();
-      break;
-    default:
-      break;
-  }
-  return {};
-}
-
-vector<FileId> get_message_content_cover_any_file_ids(const MessageContent *content) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Video: {
-      auto video = static_cast<const MessageVideo *>(content);
-      if (!video->cover.is_empty()) {
-        return {get_photo_any_file_id(video->cover)};
-      }
-      break;
-    }
-    case MessageContentType::PaidMedia:
-      return transform(static_cast<const MessagePaidMedia *>(content)->media,
-                       [](const MessageExtendedMedia &media) { return media.get_cover_any_file_id(); });
-      break;
-    default:
-      break;
-  }
-  return {};
-}
-
-void update_message_content_file_id_remote(MessageContent *content, FileId file_id) {
-  if (file_id.get_remote() == 0) {
-    return;
-  }
-  FileId *old_file_id = [&] {
-    switch (content->get_type()) {
-      case MessageContentType::Animation:
-        return &static_cast<MessageAnimation *>(content)->file_id;
-      case MessageContentType::Audio:
-        return &static_cast<MessageAudio *>(content)->file_id;
-      case MessageContentType::Document:
-        return &static_cast<MessageDocument *>(content)->file_id;
-      case MessageContentType::Sticker:
-        return &static_cast<MessageSticker *>(content)->file_id;
-      case MessageContentType::Video:
-        return &static_cast<MessageVideo *>(content)->file_id;
-      case MessageContentType::VideoNote:
-        return &static_cast<MessageVideoNote *>(content)->file_id;
-      case MessageContentType::VoiceNote:
-        return &static_cast<MessageVoiceNote *>(content)->file_id;
-      case MessageContentType::PaidMedia:
-        UNREACHABLE();
-        return static_cast<FileId *>(nullptr);
-      default:
-        return static_cast<FileId *>(nullptr);
-    }
-  }();
-  if (old_file_id != nullptr && *old_file_id == file_id && old_file_id->get_remote() == 0) {
-    *old_file_id = file_id;
-  }
-}
-
-void update_message_content_file_id_remotes(MessageContent *content, const vector<FileId> &file_ids) {
-  if (content->get_type() == MessageContentType::PaidMedia) {
-    auto &media = static_cast<MessagePaidMedia *>(content)->media;
-    if (file_ids.size() != media.size()) {
-      return;
-    }
-    for (size_t i = 0; i < file_ids.size(); i++) {
-      media[i].update_file_id_remote(file_ids[i]);
-    }
-    return;
-  }
-  if (file_ids.size() != 1) {
-    return;
-  }
-  update_message_content_file_id_remote(content, file_ids[0]);
-}
-
-FileId get_message_content_thumbnail_file_id(const MessageContent *content, const Td *td) {
-  switch (content->get_type()) {
-    case MessageContentType::Animation:
-      return td->animations_manager_->get_animation_thumbnail_file_id(
-          static_cast<const MessageAnimation *>(content)->file_id);
-    case MessageContentType::Audio:
-      return td->audios_manager_->get_audio_thumbnail_file_id(static_cast<const MessageAudio *>(content)->file_id);
-    case MessageContentType::Document:
-      return td->documents_manager_->get_document_thumbnail_file_id(
-          static_cast<const MessageDocument *>(content)->file_id);
-    case MessageContentType::Invoice:
-      return static_cast<const MessageInvoice *>(content)->input_invoice.get_thumbnail_file_id(td);
-    case MessageContentType::Photo:
-      return get_photo_thumbnail_file_id(static_cast<const MessagePhoto *>(content)->photo);
-    case MessageContentType::Sticker:
-      return td->stickers_manager_->get_sticker_thumbnail_file_id(
-          static_cast<const MessageSticker *>(content)->file_id);
-    case MessageContentType::Video:
-      return td->videos_manager_->get_video_thumbnail_file_id(static_cast<const MessageVideo *>(content)->file_id);
-    case MessageContentType::VideoNote:
-      return td->video_notes_manager_->get_video_note_thumbnail_file_id(
-          static_cast<const MessageVideoNote *>(content)->file_id);
-    case MessageContentType::VoiceNote:
-      return FileId();
-    case MessageContentType::PaidMedia:
-      UNREACHABLE();
-      return FileId();
-    default:
-      break;
-  }
-  return FileId();
-}
-
-vector<FileId> get_message_content_thumbnail_file_ids(const MessageContent *content, const Td *td) {
-  if (content->get_type() == MessageContentType::PaidMedia) {
-    return transform(static_cast<const MessagePaidMedia *>(content)->media,
-                     [&](const MessageExtendedMedia &media) { return media.get_thumbnail_file_id(td); });
-  }
-  auto file_id = get_message_content_thumbnail_file_id(content, td);
-  if (file_id.is_valid()) {
-    return {file_id};
-  }
-  return {};
-}
-
-vector<FileId> get_message_content_file_ids(const MessageContent *content, const Td *td) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Photo:
-      return photo_get_file_ids(static_cast<const MessagePhoto *>(content)->photo);
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::Sticker:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote: {
-      auto document_type = [&] {
-        switch (content->get_type()) {
-          case MessageContentType::Animation:
-            return Document::Type::Animation;
-          case MessageContentType::Audio:
-            return Document::Type::Audio;
-          case MessageContentType::Document:
-            return Document::Type::General;
-          case MessageContentType::Sticker:
-            return Document::Type::Sticker;
-          case MessageContentType::VideoNote:
-            return Document::Type::VideoNote;
-          case MessageContentType::VoiceNote:
-            return Document::Type::VoiceNote;
-          default:
-            UNREACHABLE();
-            return Document::Type::Unknown;
-        }
-      }();
-      return Document(document_type, get_message_content_any_file_id(content)).get_file_ids(td);
-    }
-    case MessageContentType::Video: {
-      auto video = static_cast<const MessageVideo *>(content);
-      auto file_ids = Document(Document::Type::Video, video->file_id).get_file_ids(td);
-      for (auto file_id : video->alternative_file_ids) {
-        append(file_ids, Document(Document::Type::Video, file_id).get_file_ids(td));
-      }
-      for (auto file_id : video->hls_file_ids) {
-        append(file_ids, Document(Document::Type::General, file_id).get_file_ids(td));
-      }
-      if (!video->cover.is_empty()) {
-        append(file_ids, photo_get_file_ids(video->cover));
-      }
-      return file_ids;
-    }
-    case MessageContentType::Game:
-      return static_cast<const MessageGame *>(content)->game.get_file_ids(td);
-    case MessageContentType::Invoice:
-      return static_cast<const MessageInvoice *>(content)->input_invoice.get_file_ids(td);
-    case MessageContentType::ChatChangePhoto:
-      return photo_get_file_ids(static_cast<const MessageChatChangePhoto *>(content)->photo);
-    case MessageContentType::PassportDataReceived: {
-      vector<FileId> result;
-      for (auto &value : static_cast<const MessagePassportDataReceived *>(content)->values) {
-        auto process_encrypted_secure_file = [&result](const EncryptedSecureFile &file) {
-          if (file.file.file_id.is_valid()) {
-            result.push_back(file.file.file_id);
-          }
-        };
-        for (auto &file : value.files) {
-          process_encrypted_secure_file(file);
-        }
-        process_encrypted_secure_file(value.front_side);
-        process_encrypted_secure_file(value.reverse_side);
-        process_encrypted_secure_file(value.selfie);
-        for (auto &file : value.translations) {
-          process_encrypted_secure_file(file);
-        }
-      }
-      return result;
-    }
-    case MessageContentType::SuggestProfilePhoto:
-      return photo_get_file_ids(static_cast<const MessageSuggestProfilePhoto *>(content)->photo);
-    case MessageContentType::WebViewWriteAccessAllowed:
-      return static_cast<const MessageWebViewWriteAccessAllowed *>(content)->web_app.get_file_ids(td);
-    case MessageContentType::SetBackground:
-      // background file references are repaired independently
-      return {};
-    case MessageContentType::Story:
-      // story file references are repaired independently
-      return {};
-    case MessageContentType::PaidMedia: {
-      vector<FileId> result;
-      for (const auto &media : static_cast<const MessagePaidMedia *>(content)->media) {
-        media.append_file_ids(td, result);
-      }
-      return result;
-    }
-    default:
-      return {};
-  }
-}
-
-StoryFullId get_message_content_story_full_id(const Td *td, const MessageContent *content) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Text:
-      return td->web_pages_manager_->get_web_page_story_full_id(static_cast<const MessageText *>(content)->web_page_id);
-    case MessageContentType::Story:
-      return static_cast<const MessageStory *>(content)->story_full_id;
-    default:
-      return StoryFullId();
-  }
-}
-
-string get_message_content_search_text(const Td *td, const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Text: {
-      const auto *text = static_cast<const MessageText *>(content);
-      if (!text->web_page_id.is_valid()) {
-        return text->text.text;
-      }
-      return PSTRING() << text->text.text << ' ' << td->web_pages_manager_->get_web_page_search_text(text->web_page_id);
-    }
-    case MessageContentType::Animation: {
-      const auto *animation = static_cast<const MessageAnimation *>(content);
-      return PSTRING() << td->animations_manager_->get_animation_search_text(animation->file_id) << ' '
-                       << animation->caption.text;
-    }
-    case MessageContentType::Audio: {
-      const auto *audio = static_cast<const MessageAudio *>(content);
-      return PSTRING() << td->audios_manager_->get_audio_search_text(audio->file_id) << ' ' << audio->caption.text;
-    }
-    case MessageContentType::Document: {
-      const auto *document = static_cast<const MessageDocument *>(content);
-      return PSTRING() << td->documents_manager_->get_document_search_text(document->file_id) << ' '
-                       << document->caption.text;
-    }
-    case MessageContentType::Invoice: {
-      const auto *invoice = static_cast<const MessageInvoice *>(content);
-      return invoice->input_invoice.get_caption()->text;
-    }
-    case MessageContentType::PaidMedia: {
-      const auto *paid_media = static_cast<const MessagePaidMedia *>(content);
-      return paid_media->caption.text;
-    }
-    case MessageContentType::Photo: {
-      const auto *photo = static_cast<const MessagePhoto *>(content);
-      return photo->caption.text;
-    }
-    case MessageContentType::Video: {
-      const auto *video = static_cast<const MessageVideo *>(content);
-      return PSTRING() << td->videos_manager_->get_video_search_text(video->file_id) << " " << video->caption.text;
-    }
-    case MessageContentType::Poll: {
-      const auto *poll = static_cast<const MessagePoll *>(content);
-      return td->poll_manager_->get_poll_search_text(poll->poll_id);
-    }
-    case MessageContentType::TopicCreate: {
-      const auto *topic_create = static_cast<const MessageTopicCreate *>(content);
-      return topic_create->title;
-    }
-    case MessageContentType::TopicEdit: {
-      const auto *topic_edit = static_cast<const MessageTopicEdit *>(content);
-      return topic_edit->edited_data.get_title();
-    }
-    case MessageContentType::GiftPremium: {
-      const auto *m = static_cast<const MessageGiftPremium *>(content);
-      return m->text.text;
-    }
-    case MessageContentType::GiftCode: {
-      const auto *m = static_cast<const MessageGiftCode *>(content);
-      return m->text.text;
-    }
-    case MessageContentType::StarGift: {
-      const auto *m = static_cast<const MessageStarGift *>(content);
-      return m->text.text;
-    }
-    case MessageContentType::Contact:
-    case MessageContentType::Game:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Sticker:
-    case MessageContentType::Story:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Venue:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-      return string();
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-bool update_message_content_extended_media(
-    MessageContent *content, vector<telegram_api::object_ptr<telegram_api::MessageExtendedMedia>> extended_media,
-    DialogId owner_dialog_id, Td *td) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Invoice:
-      if (extended_media.size() != 1) {
-        LOG(ERROR) << "Receive " << extended_media.size() << " extended media in " << owner_dialog_id;
-        return false;
-      }
-      return static_cast<MessageInvoice *>(content)->input_invoice.update_extended_media(std::move(extended_media[0]),
-                                                                                         owner_dialog_id, td);
-    case MessageContentType::PaidMedia: {
-      auto &media = static_cast<MessagePaidMedia *>(content)->media;
-      if (extended_media.size() != media.size()) {
-        LOG(ERROR) << "Receive " << extended_media.size() << " paid media instead of " << media.size() << " in "
-                   << owner_dialog_id;
-        return false;
-      }
-      bool result = false;
-      for (size_t i = 0; i < media.size(); i++) {
-        if (media[i].update_to(td, std::move(extended_media[i]), owner_dialog_id)) {
-          result = true;
-        }
-      }
-      return result;
-    }
-    case MessageContentType::Unsupported:
-      return false;
-    default:
-      LOG(ERROR) << "Receive updateMessageExtendedMedia for a message of type " << content->get_type() << " in "
-                 << owner_dialog_id;
-      return false;
-  }
-}
-
-bool need_poll_message_content_extended_media(const MessageContent *content) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Invoice:
-      return static_cast<const MessageInvoice *>(content)->input_invoice.need_poll_extended_media();
-    case MessageContentType::PaidMedia: {
-      const auto &media = static_cast<const MessagePaidMedia *>(content)->media;
-      for (auto &extended_media : media) {
-        if (extended_media.need_poll()) {
-          return true;
-        }
-      }
-      return false;
-    }
-    default:
-      return false;
-  }
-}
-
-void set_message_content_video_start_timestamp(MessageContent *content, int32 start_timestamp) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Video:
-      static_cast<MessageVideo *>(content)->start_timestamp = start_timestamp;
-      return;
-    default:
-      return;
-  }
-}
-
-void get_message_content_animated_emoji_click_sticker(const MessageContent *content, MessageFullId message_full_id,
-                                                      Td *td, Promise<td_api::object_ptr<td_api::sticker>> &&promise) {
-  if (content->get_type() != MessageContentType::Text) {
-    return promise.set_error(Status::Error(400, "Message is not an animated emoji message"));
-  }
-
-  const auto &text = static_cast<const MessageText *>(content)->text;
-  if (!can_be_animated_emoji(text)) {
-    return promise.set_error(Status::Error(400, "Message is not an animated emoji message"));
-  }
-  td->stickers_manager_->get_animated_emoji_click_sticker(text.text, message_full_id, std::move(promise));
-}
-
-void on_message_content_animated_emoji_clicked(const MessageContent *content, MessageFullId message_full_id, Td *td,
-                                               string &&emoji, string &&data) {
-  if (content->get_type() != MessageContentType::Text) {
-    return;
-  }
-
-  remove_emoji_modifiers_in_place(emoji);
-  auto &text = static_cast<const MessageText *>(content)->text;
-  if (!text.entities.empty() || remove_emoji_modifiers(text.text) != emoji) {
-    return;
-  }
-  auto error = td->stickers_manager_->on_animated_emoji_message_clicked(std::move(emoji), message_full_id, data);
-  if (error.is_error()) {
-    LOG(WARNING) << "Failed to process animated emoji click with data \"" << data << "\": " << error;
-  }
-}
-
-bool need_reget_message_content(const MessageContent *content) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case MessageContentType::Unsupported: {
-      const auto *m = static_cast<const MessageUnsupported *>(content);
-      return m->version != MessageUnsupported::CURRENT_VERSION;
-    }
-    case MessageContentType::Invoice: {
-      const auto *m = static_cast<const MessageInvoice *>(content);
-      return m->input_invoice.need_reget();
-    }
-    case MessageContentType::PaidMedia: {
-      const auto *m = static_cast<const MessagePaidMedia *>(content);
-      for (const auto &media : m->media) {
-        if (media.need_reget()) {
-          return true;
-        }
-      }
-      return false;
-    }
-    default:
-      return false;
-  }
-}
-
-bool need_delay_message_content_notification(const MessageContent *content, UserId my_user_id) {
-  switch (content->get_type()) {
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatJoinedByLink:
-      return true;
-    case MessageContentType::ChatAddUsers: {
-      auto &added_user_ids = static_cast<const MessageChatAddUsers *>(content)->user_ids;
-      return !td::contains(added_user_ids, my_user_id);
-    }
-    case MessageContentType::ChatDeleteUser:
-      return static_cast<const MessageChatDeleteUser *>(content)->user_id != my_user_id;
-    default:
-      return false;
-  }
-}
-
-void update_expired_message_content(unique_ptr<MessageContent> &content) {
-  switch (content->get_type()) {
-    case MessageContentType::Photo:
-      content = make_unique<MessageExpiredPhoto>();
-      break;
-    case MessageContentType::Video:
-      content = make_unique<MessageExpiredVideo>();
-      break;
-    case MessageContentType::Unsupported:
-      // can happen if message content file identifier is broken
-      break;
-    case MessageContentType::VideoNote:
-      content = make_unique<MessageExpiredVideoNote>();
-      break;
-    case MessageContentType::VoiceNote:
-      content = make_unique<MessageExpiredVoiceNote>();
-      break;
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-      // can happen if message content has been reget from somewhere
-      break;
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::Sticker:
-      // can happen if server will send a document with a wrong content
-      content = make_unique<MessageExpiredVideo>();
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void update_failed_to_send_message_content(Td *td, unique_ptr<MessageContent> &content) {
-  // do not forget about failed to send message forwards
-  switch (content->get_type()) {
-    case MessageContentType::Poll: {
-      const auto *message_poll = static_cast<const MessagePoll *>(content.get());
-      if (PollManager::is_local_poll_id(message_poll->poll_id)) {
-        td->poll_manager_->stop_local_poll(message_poll->poll_id);
-      }
-      break;
-    }
-    default:
-      // nothing to do
-      break;
-  }
-}
-
-void add_message_content_dependencies(Dependencies &dependencies, const MessageContent *message_content, bool is_bot) {
-  CHECK(message_content != nullptr);
-  switch (message_content->get_type()) {
-    case MessageContentType::Text: {
-      const auto *content = static_cast<const MessageText *>(message_content);
-      dependencies.add(content->web_page_id);
-      break;
-    }
-    case MessageContentType::Animation:
-      break;
-    case MessageContentType::Audio:
-      break;
-    case MessageContentType::Contact: {
-      const auto *content = static_cast<const MessageContact *>(message_content);
-      dependencies.add(content->contact.get_user_id());
-      break;
-    }
-    case MessageContentType::Document:
-      break;
-    case MessageContentType::Game: {
-      const auto *content = static_cast<const MessageGame *>(message_content);
-      dependencies.add(content->game.get_bot_user_id());
-      break;
-    }
-    case MessageContentType::Invoice:
-      break;
-    case MessageContentType::LiveLocation:
-      break;
-    case MessageContentType::Location:
-      break;
-    case MessageContentType::Photo:
-      break;
-    case MessageContentType::Sticker:
-      break;
-    case MessageContentType::Venue:
-      break;
-    case MessageContentType::Video:
-      break;
-    case MessageContentType::VideoNote:
-      break;
-    case MessageContentType::VoiceNote:
-      break;
-    case MessageContentType::ChatCreate: {
-      const auto *content = static_cast<const MessageChatCreate *>(message_content);
-      for (auto &participant_user_id : content->participant_user_ids) {
-        dependencies.add(participant_user_id);
-      }
-      break;
-    }
-    case MessageContentType::ChatChangeTitle:
-      break;
-    case MessageContentType::ChatChangePhoto:
-      break;
-    case MessageContentType::ChatDeletePhoto:
-      break;
-    case MessageContentType::ChatDeleteHistory:
-      break;
-    case MessageContentType::ChatAddUsers: {
-      const auto *content = static_cast<const MessageChatAddUsers *>(message_content);
-      for (auto &user_id : content->user_ids) {
-        dependencies.add(user_id);
-      }
-      break;
-    }
-    case MessageContentType::ChatJoinedByLink:
-      break;
-    case MessageContentType::ChatDeleteUser: {
-      const auto *content = static_cast<const MessageChatDeleteUser *>(message_content);
-      dependencies.add(content->user_id);
-      break;
-    }
-    case MessageContentType::ChatMigrateTo: {
-      const auto *content = static_cast<const MessageChatMigrateTo *>(message_content);
-      dependencies.add(content->migrated_to_channel_id);
-      break;
-    }
-    case MessageContentType::ChannelCreate:
-      break;
-    case MessageContentType::ChannelMigrateFrom: {
-      const auto *content = static_cast<const MessageChannelMigrateFrom *>(message_content);
-      dependencies.add(content->migrated_from_chat_id);
-      break;
-    }
-    case MessageContentType::PinMessage:
-      break;
-    case MessageContentType::GameScore:
-      break;
-    case MessageContentType::ScreenshotTaken:
-      break;
-    case MessageContentType::ChatSetTtl: {
-      const auto *content = static_cast<const MessageChatSetTtl *>(message_content);
-      dependencies.add(content->from_user_id);
-      break;
-    }
-    case MessageContentType::Unsupported:
-      break;
-    case MessageContentType::Call:
-      break;
-    case MessageContentType::PaymentSuccessful: {
-      const auto *content = static_cast<const MessagePaymentSuccessful *>(message_content);
-      dependencies.add_dialog_and_dependencies(content->invoice_dialog_id);
-      break;
-    }
-    case MessageContentType::ContactRegistered:
-      break;
-    case MessageContentType::ExpiredPhoto:
-      break;
-    case MessageContentType::ExpiredVideo:
-      break;
-    case MessageContentType::CustomServiceAction:
-      break;
-    case MessageContentType::WebsiteConnected:
-      break;
-    case MessageContentType::PassportDataSent:
-      break;
-    case MessageContentType::PassportDataReceived:
-      break;
-    case MessageContentType::Poll:
-      // no need to add poll dependencies, because they are forcely loaded with the poll
-      break;
-    case MessageContentType::Dice:
-      break;
-    case MessageContentType::ProximityAlertTriggered: {
-      const auto *content = static_cast<const MessageProximityAlertTriggered *>(message_content);
-      dependencies.add_message_sender_dependencies(content->traveler_dialog_id);
-      dependencies.add_message_sender_dependencies(content->watcher_dialog_id);
-      break;
-    }
-    case MessageContentType::GroupCall:
-      break;
-    case MessageContentType::InviteToGroupCall: {
-      const auto *content = static_cast<const MessageInviteToGroupCall *>(message_content);
-      for (auto &user_id : content->user_ids) {
-        dependencies.add(user_id);
-      }
-      break;
-    }
-    case MessageContentType::ChatSetTheme:
-      break;
-    case MessageContentType::WebViewDataSent:
-      break;
-    case MessageContentType::WebViewDataReceived:
-      break;
-    case MessageContentType::GiftPremium:
-      break;
-    case MessageContentType::TopicCreate:
-      break;
-    case MessageContentType::TopicEdit:
-      break;
-    case MessageContentType::SuggestProfilePhoto:
-      break;
-    case MessageContentType::WriteAccessAllowed:
-      break;
-    case MessageContentType::RequestedDialog: {
-      const auto *content = static_cast<const MessageRequestedDialog *>(message_content);
-      if (!is_bot) {
-        for (auto dialog_id : content->shared_dialog_ids) {
-          if (dialog_id.get_type() == DialogType::User) {
-            dependencies.add(dialog_id.get_user_id());
-          } else {
-            dependencies.add_dialog_and_dependencies(dialog_id);
-          }
-        }
-      }
-      break;
-    }
-    case MessageContentType::WebViewWriteAccessAllowed:
-      break;
-    case MessageContentType::SetBackground:
-      break;
-    case MessageContentType::Story: {
-      const auto *content = static_cast<const MessageStory *>(message_content);
-      dependencies.add(content->story_full_id);
-      break;
-    }
-    case MessageContentType::WriteAccessAllowedByRequest:
-      break;
-    case MessageContentType::GiftCode: {
-      const auto *content = static_cast<const MessageGiftCode *>(message_content);
-      dependencies.add_message_sender_dependencies(content->creator_dialog_id);
-      break;
-    }
-    case MessageContentType::Giveaway: {
-      const auto *content = static_cast<const MessageGiveaway *>(message_content);
-      content->giveaway_parameters.add_dependencies(dependencies);
-      break;
-    }
-    case MessageContentType::GiveawayLaunch:
-      break;
-    case MessageContentType::GiveawayResults:
-      break;
-    case MessageContentType::GiveawayWinners: {
-      const auto *content = static_cast<const MessageGiveawayWinners *>(message_content);
-      dependencies.add_dialog_and_dependencies(DialogId(content->boosted_channel_id));
-      for (auto &user_id : content->winner_user_ids) {
-        dependencies.add(user_id);
-      }
-      break;
-    }
-    case MessageContentType::ExpiredVideoNote:
-      break;
-    case MessageContentType::ExpiredVoiceNote:
-      break;
-    case MessageContentType::BoostApply:
-      break;
-    case MessageContentType::DialogShared:
-      break;
-    case MessageContentType::PaidMedia:
-      break;
-    case MessageContentType::PaymentRefunded: {
-      const auto *content = static_cast<const MessagePaymentRefunded *>(message_content);
-      dependencies.add_message_sender_dependencies(content->dialog_id);
-      break;
-    }
-    case MessageContentType::GiftStars:
-      break;
-    case MessageContentType::PrizeStars: {
-      const auto *content = static_cast<const MessagePrizeStars *>(message_content);
-      dependencies.add_dialog_and_dependencies(DialogId(content->boosted_dialog_id));
-      break;
-    }
-    case MessageContentType::StarGift: {
-      const auto *content = static_cast<const MessageStarGift *>(message_content);
-      content->star_gift.add_dependencies(dependencies);
-      dependencies.add_dialog_and_dependencies(content->sender_dialog_id);
-      dependencies.add_dialog_and_dependencies(content->owner_dialog_id);
-      break;
-    }
-    case MessageContentType::StarGiftUnique: {
-      const auto *content = static_cast<const MessageStarGiftUnique *>(message_content);
-      content->star_gift.add_dependencies(dependencies);
-      dependencies.add_dialog_and_dependencies(content->sender_dialog_id);
-      dependencies.add_dialog_and_dependencies(content->owner_dialog_id);
-      break;
-    }
-    case MessageContentType::PaidMessagesRefunded:
-      break;
-    case MessageContentType::PaidMessagesPrice:
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  add_formatted_text_dependencies(dependencies, get_message_content_text(message_content));
-}
-
-void update_forum_topic_info_by_service_message_content(Td *td, const MessageContent *content, DialogId dialog_id,
-                                                        MessageId top_thread_message_id) {
-  if (!top_thread_message_id.is_valid()) {
-    return;
-  }
-  switch (content->get_type()) {
-    case MessageContentType::TopicEdit:
-      return td->forum_topic_manager_->on_forum_topic_edited(
-          dialog_id, top_thread_message_id, static_cast<const MessageTopicEdit *>(content)->edited_data);
-    default:
-      // nothing to do
-      return;
-  }
-}
-
-void on_sent_message_content(Td *td, const MessageContent *content) {
-  switch (content->get_type()) {
-    case MessageContentType::Animation:
-      return td->animations_manager_->add_saved_animation_by_id(get_message_content_any_file_id(content));
-    case MessageContentType::Sticker:
-      return td->stickers_manager_->add_recent_sticker_by_id(false, get_message_content_any_file_id(content));
-    default:
-      // nothing to do
-      return;
-  }
-}
-
-void move_message_content_sticker_set_to_top(Td *td, const MessageContent *content) {
-  CHECK(content != nullptr);
-  if (content->get_type() == MessageContentType::Sticker) {
-    td->stickers_manager_->move_sticker_set_to_top_by_sticker_id(get_message_content_any_file_id(content));
-    return;
-  }
-
-  auto text = get_message_content_text(content);
-  if (text == nullptr) {
-    return;
-  }
-  vector<CustomEmojiId> custom_emoji_ids;
-  for (auto &entity : text->entities) {
-    if (entity.type == MessageEntity::Type::CustomEmoji) {
-      custom_emoji_ids.push_back(entity.custom_emoji_id);
-    }
-  }
-  if (!custom_emoji_ids.empty()) {
-    td->stickers_manager_->move_sticker_set_to_top_by_custom_emoji_ids(custom_emoji_ids);
-  }
-}
-
-void on_dialog_used(TopDialogCategory category, DialogId dialog_id, int32 date) {
-  send_closure(G()->top_dialog_manager(), &TopDialogManager::on_dialog_used, category, dialog_id, date);
-}
-
-void update_used_hashtags(Td *td, const MessageContent *content) {
-  const FormattedText *text = get_message_content_text(content);
-  if (text == nullptr || text->text.empty()) {
-    return;
-  }
-
-  const unsigned char *ptr = Slice(text->text).ubegin();
-  const unsigned char *end = Slice(text->text).uend();
-  int32 utf16_pos = 0;
-  uint32 skipped_code = 0;
-  for (auto &entity : text->entities) {
-    if (entity.type != MessageEntity::Type::Hashtag) {
-      continue;
-    }
-    while (utf16_pos < entity.offset && ptr < end) {
-      utf16_pos += 1 + (ptr[0] >= 0xf0);
-      ptr = next_utf8_unsafe(ptr, &skipped_code);
-    }
-    CHECK(utf16_pos == entity.offset);
-    auto from = ptr;
-
-    while (utf16_pos < entity.offset + entity.length && ptr < end) {
-      utf16_pos += 1 + (ptr[0] >= 0xf0);
-      ptr = next_utf8_unsafe(ptr, &skipped_code);
-    }
-    CHECK(utf16_pos == entity.offset + entity.length);
-    auto to = ptr;
-
-    send_closure(td->hashtag_hints_, &HashtagHints::hashtag_used, Slice(from + 1, to).str());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageContent.h b/third-party/td/td/td/telegram/MessageContent.h
deleted file mode 100644
index d379c04819..0000000000
--- a/third-party/td/td/td/telegram/MessageContent.h
+++ /dev/null
@@ -1,358 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BackgroundInfo.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/EncryptedFile.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/InputGroupCallId.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageCopyOptions.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageSelfDestructType.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/QuickReplyMessageFullId.h"
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TopDialogCategory.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/WebPageId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class Dependencies;
-class Game;
-class MultiPromiseActor;
-struct Photo;
-class RepliedMessageInfo;
-class Td;
-class Venue;
-
-// Do not forget to update merge_message_contents and compare_message_contents when one of the inheritors of this class changes
-class MessageContent {
- public:
-  MessageContent() = default;
-  MessageContent(const MessageContent &) = default;
-  MessageContent &operator=(const MessageContent &) = default;
-  MessageContent(MessageContent &&) = default;
-  MessageContent &operator=(MessageContent &&) = default;
-
-  virtual MessageContentType get_type() const = 0;
-  virtual ~MessageContent() = default;
-};
-
-struct InputMessageContent {
-  unique_ptr<MessageContent> content;
-  bool disable_web_page_preview = false;
-  bool invert_media = false;
-  bool clear_draft = false;
-  MessageSelfDestructType ttl;
-  UserId via_bot_user_id;
-  string emoji;
-
-  InputMessageContent(unique_ptr<MessageContent> &&content, bool disable_web_page_preview, bool invert_media,
-                      bool clear_draft, MessageSelfDestructType ttl, UserId via_bot_user_id, string emoji)
-      : content(std::move(content))
-      , disable_web_page_preview(disable_web_page_preview)
-      , invert_media(invert_media)
-      , clear_draft(clear_draft)
-      , ttl(ttl)
-      , via_bot_user_id(via_bot_user_id)
-      , emoji(std::move(emoji)) {
-  }
-};
-
-struct InlineMessageContent {
-  unique_ptr<MessageContent> message_content;
-  unique_ptr<ReplyMarkup> message_reply_markup;
-  bool disable_web_page_preview;
-  bool invert_media;
-};
-
-void store_message_content(const MessageContent *content, LogEventStorerCalcLength &storer);
-
-void store_message_content(const MessageContent *content, LogEventStorerUnsafe &storer);
-
-void parse_message_content(unique_ptr<MessageContent> &content, LogEventParser &parser);
-
-InlineMessageContent create_inline_message_content(Td *td, FileId file_id,
-                                                   tl_object_ptr<telegram_api::BotInlineMessage> &&bot_inline_message,
-                                                   int32 allowed_media_content_id, Photo *photo, Game *game);
-
-unique_ptr<MessageContent> create_text_message_content(string text, vector<MessageEntity> entities,
-                                                       WebPageId web_page_id, bool force_small_media,
-                                                       bool force_large_media, bool skip_confitmation,
-                                                       string &&web_page_url);
-
-unique_ptr<MessageContent> create_photo_message_content(Photo photo);
-
-unique_ptr<MessageContent> create_video_message_content(FileId file_id, Photo cover, int32 start_timestamp);
-
-unique_ptr<MessageContent> create_contact_registered_message_content();
-
-unique_ptr<MessageContent> create_screenshot_taken_message_content();
-
-unique_ptr<MessageContent> create_chat_set_ttl_message_content(int32 ttl, UserId from_user_id);
-
-td_api::object_ptr<td_api::formattedText> extract_input_caption(
-    td_api::object_ptr<td_api::InputMessageContent> &input_message_content);
-
-bool extract_input_invert_media(const td_api::object_ptr<td_api::InputMessageContent> &input_message_content);
-
-Result<InputMessageContent> get_input_message_content(
-    DialogId dialog_id, tl_object_ptr<td_api::InputMessageContent> &&input_message_content, Td *td, bool is_premium);
-
-Status check_message_group_message_contents(const vector<InputMessageContent> &message_contents);
-
-bool can_message_content_have_input_media(const Td *td, const MessageContent *content, bool is_server);
-
-SecretInputMedia get_message_content_secret_input_media(
-    const MessageContent *content, Td *td, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-    BufferSlice thumbnail, int32 layer);
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_input_media(
-    const MessageContent *content, int32 media_pos, Td *td,
-    telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, FileUploadId file_upload_id,
-    FileUploadId thumbnail_file_upload_id, MessageSelfDestructType ttl, const string &emoji, bool force);
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_input_media(const MessageContent *content,
-                                                                                   Td *td, MessageSelfDestructType ttl,
-                                                                                   const string &emoji, bool force,
-                                                                                   int32 media_pos = -1);
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_fake_input_media(
-    Td *td, telegram_api::object_ptr<telegram_api::InputFile> input_file, FileId file_id);
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_message_content_input_media_web_page(
-    const Td *td, const MessageContent *content);
-
-bool is_uploaded_input_media(telegram_api::object_ptr<telegram_api::InputMedia> &input_media);
-
-void delete_message_content_thumbnail(MessageContent *content, Td *td, int32 media_pos = -1);
-
-Status can_send_message_content(DialogId dialog_id, const MessageContent *content, bool is_forward,
-                                bool check_permissions, const Td *td);
-
-bool can_forward_message_content(const MessageContent *content);
-
-bool update_opened_message_content(MessageContent *content);
-
-int32 get_message_content_index_mask(const MessageContent *content, const Td *td, bool is_outgoing);
-
-vector<unique_ptr<MessageContent>> get_individual_message_contents(const MessageContent *content);
-
-StickerType get_message_content_sticker_type(const Td *td, const MessageContent *content);
-
-MessageId get_message_content_pinned_message_id(const MessageContent *content);
-
-BackgroundInfo get_message_content_my_background_info(const MessageContent *content, bool is_outgoing);
-
-string get_message_content_theme_name(const MessageContent *content);
-
-MessageFullId get_message_content_replied_message_id(DialogId dialog_id, const MessageContent *content);
-
-std::pair<InputGroupCallId, bool> get_message_content_group_call_info(const MessageContent *content);
-
-vector<UserId> get_message_content_min_user_ids(const Td *td, const MessageContent *message_content);
-
-vector<ChannelId> get_message_content_min_channel_ids(const Td *td, const MessageContent *message_content);
-
-vector<UserId> get_message_content_added_user_ids(const MessageContent *content);
-
-UserId get_message_content_deleted_user_id(const MessageContent *content);
-
-int32 get_message_content_live_location_period(const MessageContent *content);
-
-bool get_message_content_poll_is_anonymous(const Td *td, const MessageContent *content);
-
-bool get_message_content_poll_is_closed(const Td *td, const MessageContent *content);
-
-const Venue *get_message_content_venue(const MessageContent *content);
-
-bool has_message_content_web_page(const MessageContent *content);
-
-void remove_message_content_web_page(MessageContent *content);
-
-bool can_message_content_have_media_timestamp(const MessageContent *content);
-
-void set_message_content_poll_answer(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                                     vector<int32> &&option_ids, Promise<Unit> &&promise);
-
-void get_message_content_poll_voters(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                                     int32 option_id, int32 offset, int32 limit,
-                                     Promise<td_api::object_ptr<td_api::messageSenders>> &&promise);
-
-void stop_message_content_poll(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                               unique_ptr<ReplyMarkup> &&reply_markup, Promise<Unit> &&promise);
-
-void merge_message_contents(Td *td, const MessageContent *old_content, MessageContent *new_content,
-                            bool need_message_changed_warning, DialogId dialog_id, bool need_merge_files,
-                            bool &is_content_changed, bool &need_update);
-
-bool merge_message_content_file_id(Td *td, MessageContent *message_content, FileId new_file_id);
-
-void compare_message_contents(Td *td, const MessageContent *lhs_content, const MessageContent *rhs_content,
-                              bool &is_content_changed, bool &need_update);
-
-void register_message_content(Td *td, const MessageContent *content, MessageFullId message_full_id, const char *source);
-
-void reregister_message_content(Td *td, const MessageContent *old_content, const MessageContent *new_content,
-                                MessageFullId message_full_id, const char *source);
-
-void unregister_message_content(Td *td, const MessageContent *content, MessageFullId message_full_id,
-                                const char *source);
-
-void register_reply_message_content(Td *td, const MessageContent *content);
-
-void unregister_reply_message_content(Td *td, const MessageContent *content);
-
-void register_quick_reply_message_content(Td *td, const MessageContent *content,
-                                          QuickReplyMessageFullId message_full_id, const char *source);
-
-void unregister_quick_reply_message_content(Td *td, const MessageContent *content,
-                                            QuickReplyMessageFullId message_full_id, const char *source);
-
-unique_ptr<MessageContent> get_secret_message_content(
-    Td *td, string message_text, unique_ptr<EncryptedFile> file,
-    tl_object_ptr<secret_api::DecryptedMessageMedia> &&media_ptr,
-    vector<tl_object_ptr<secret_api::MessageEntity>> &&secret_entities, DialogId owner_dialog_id,
-    MultiPromiseActor &load_data_multipromise, bool is_premium);
-
-unique_ptr<MessageContent> get_message_content(Td *td, FormattedText message_text,
-                                               tl_object_ptr<telegram_api::MessageMedia> &&media_ptr,
-                                               DialogId owner_dialog_id, int32 message_date, bool is_content_read,
-                                               UserId via_bot_user_id, MessageSelfDestructType *ttl,
-                                               bool *disable_web_page_preview, const char *source);
-
-unique_ptr<MessageContent> get_uploaded_message_content(
-    Td *td, const MessageContent *old_content, int32 media_pos,
-    telegram_api::object_ptr<telegram_api::MessageMedia> &&media_ptr, DialogId owner_dialog_id, int32 message_date,
-    const char *source);
-
-enum class MessageContentDupType : int32 {
-  Send,        // normal message sending
-  SendViaBot,  // message sending via bot
-  Forward,     // server-side message forward
-  Copy,        // local message copy
-  ServerCopy   // server-side message copy
-};
-
-unique_ptr<MessageContent> dup_message_content(Td *td, DialogId dialog_id, const MessageContent *content,
-                                               MessageContentDupType type, MessageCopyOptions &&copy_options);
-
-unique_ptr<MessageContent> get_action_message_content(Td *td, tl_object_ptr<telegram_api::MessageAction> &&action_ptr,
-                                                      DialogId owner_dialog_id, int32 message_date,
-                                                      const RepliedMessageInfo &replied_message_info,
-                                                      bool is_business_message);
-
-td_api::object_ptr<td_api::MessageContent> get_message_content_object(const MessageContent *content, Td *td,
-                                                                      DialogId dialog_id, MessageId message_id,
-                                                                      bool is_outgoing, DialogId sender_dialog_id,
-                                                                      int32 message_date, bool is_content_secret,
-                                                                      bool skip_bot_commands, int32 max_media_timestamp,
-                                                                      bool invert_media, bool disable_web_page_preview);
-
-td_api::object_ptr<td_api::upgradeGiftResult> get_message_content_upgrade_gift_result_object(
-    const MessageContent *content, Td *td, DialogId dialog_id, MessageId message_id);
-
-FormattedText *get_message_content_text_mutable(MessageContent *content);
-
-const FormattedText *get_message_content_text(const MessageContent *content);
-
-const FormattedText *get_message_content_caption(const MessageContent *content);
-
-int64 get_message_content_star_count(const MessageContent *content);
-
-string get_message_content_payload(const MessageContent *content);
-
-int32 get_message_content_duration(const MessageContent *content, const Td *td);
-
-int32 get_message_content_media_duration(const MessageContent *content, const Td *td);
-
-const Photo *get_message_content_cover(const MessageContent *content);
-
-vector<const Photo *> get_message_content_need_to_upload_covers(Td *td, const MessageContent *content);
-
-const Photo *get_message_content_photo(const MessageContent *content);
-
-FileId get_message_content_any_file_id(const MessageContent *content);
-
-vector<FileId> get_message_content_any_file_ids(const MessageContent *content);
-
-FileId get_message_content_cover_any_file_id(const MessageContent *content);
-
-vector<FileId> get_message_content_cover_any_file_ids(const MessageContent *content);
-
-void update_message_content_file_id_remote(MessageContent *content, FileId file_id);
-
-void update_message_content_file_id_remotes(MessageContent *content, const vector<FileId> &file_ids);
-
-FileId get_message_content_thumbnail_file_id(const MessageContent *content, const Td *td);
-
-vector<FileId> get_message_content_thumbnail_file_ids(const MessageContent *content, const Td *td);
-
-vector<FileId> get_message_content_file_ids(const MessageContent *content, const Td *td);
-
-StoryFullId get_message_content_story_full_id(const Td *td, const MessageContent *content);
-
-string get_message_content_search_text(const Td *td, const MessageContent *content);
-
-bool update_message_content_extended_media(
-    MessageContent *content, vector<telegram_api::object_ptr<telegram_api::MessageExtendedMedia>> extended_media,
-    DialogId owner_dialog_id, Td *td);
-
-bool need_poll_message_content_extended_media(const MessageContent *content);
-
-void set_message_content_video_start_timestamp(MessageContent *content, int32 start_timestamp);
-
-void get_message_content_animated_emoji_click_sticker(const MessageContent *content, MessageFullId message_full_id,
-                                                      Td *td, Promise<td_api::object_ptr<td_api::sticker>> &&promise);
-
-void on_message_content_animated_emoji_clicked(const MessageContent *content, MessageFullId message_full_id, Td *td,
-                                               string &&emoji, string &&data);
-
-bool need_reget_message_content(const MessageContent *content);
-
-bool need_delay_message_content_notification(const MessageContent *content, UserId my_user_id);
-
-void update_expired_message_content(unique_ptr<MessageContent> &content);
-
-void update_failed_to_send_message_content(Td *td, unique_ptr<MessageContent> &content);
-
-void add_message_content_dependencies(Dependencies &dependencies, const MessageContent *message_content, bool is_bot);
-
-void update_forum_topic_info_by_service_message_content(Td *td, const MessageContent *content, DialogId dialog_id,
-                                                        MessageId top_thread_message_id);
-
-void on_sent_message_content(Td *td, const MessageContent *content);
-
-void move_message_content_sticker_set_to_top(Td *td, const MessageContent *content);
-
-void on_dialog_used(TopDialogCategory category, DialogId dialog_id, int32 date);
-
-void update_used_hashtags(Td *td, const MessageContent *content);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageContentType.cpp b/third-party/td/td/td/telegram/MessageContentType.cpp
deleted file mode 100644
index d91849e48f..0000000000
--- a/third-party/td/td/td/telegram/MessageContentType.cpp
+++ /dev/null
@@ -1,949 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageContentType.h"
-
-namespace td {
-
-StringBuilder &operator<<(StringBuilder &string_builder, MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::None:
-      return string_builder << "None";
-    case MessageContentType::Animation:
-      return string_builder << "Animation";
-    case MessageContentType::Audio:
-      return string_builder << "Audio";
-    case MessageContentType::Document:
-      return string_builder << "Document";
-    case MessageContentType::ExpiredPhoto:
-      return string_builder << "ExpiredPhoto";
-    case MessageContentType::Photo:
-      return string_builder << "Photo";
-    case MessageContentType::ExpiredVideo:
-      return string_builder << "ExpiredVideo";
-    case MessageContentType::Video:
-      return string_builder << "Video";
-    case MessageContentType::VideoNote:
-      return string_builder << "VideoNote";
-    case MessageContentType::VoiceNote:
-      return string_builder << "VoiceNote";
-    case MessageContentType::Contact:
-      return string_builder << "Contact";
-    case MessageContentType::LiveLocation:
-      return string_builder << "LiveLocation";
-    case MessageContentType::Location:
-      return string_builder << "Location";
-    case MessageContentType::Venue:
-      return string_builder << "Venue";
-    case MessageContentType::Game:
-      return string_builder << "Game";
-    case MessageContentType::Invoice:
-      return string_builder << "Invoice";
-    case MessageContentType::Sticker:
-      return string_builder << "Sticker";
-    case MessageContentType::Text:
-      return string_builder << "Text";
-    case MessageContentType::Unsupported:
-      return string_builder << "Unsupported";
-    case MessageContentType::ChatCreate:
-      return string_builder << "ChatCreate";
-    case MessageContentType::ChatChangeTitle:
-      return string_builder << "ChatChangeTitle";
-    case MessageContentType::ChatChangePhoto:
-      return string_builder << "ChatChangePhoto";
-    case MessageContentType::ChatDeletePhoto:
-      return string_builder << "ChatDeletePhoto";
-    case MessageContentType::ChatDeleteHistory:
-      return string_builder << "ChatDeleteHistory";
-    case MessageContentType::ChatAddUsers:
-      return string_builder << "ChatAddUsers";
-    case MessageContentType::ChatJoinedByLink:
-      return string_builder << "ChatJoinedByLink";
-    case MessageContentType::ChatDeleteUser:
-      return string_builder << "ChatDeleteUser";
-    case MessageContentType::ChatMigrateTo:
-      return string_builder << "ChatMigrateTo";
-    case MessageContentType::ChannelCreate:
-      return string_builder << "ChannelCreate";
-    case MessageContentType::ChannelMigrateFrom:
-      return string_builder << "ChannelMigrateFrom";
-    case MessageContentType::PinMessage:
-      return string_builder << "PinMessage";
-    case MessageContentType::GameScore:
-      return string_builder << "GameScore";
-    case MessageContentType::ScreenshotTaken:
-      return string_builder << "ScreenshotTaken";
-    case MessageContentType::ChatSetTtl:
-      return string_builder << "ChatSetTtl";
-    case MessageContentType::Call:
-      return string_builder << "Call";
-    case MessageContentType::PaymentSuccessful:
-      return string_builder << "PaymentSuccessful";
-    case MessageContentType::ContactRegistered:
-      return string_builder << "ContactRegistered";
-    case MessageContentType::CustomServiceAction:
-      return string_builder << "CustomServiceAction";
-    case MessageContentType::WebsiteConnected:
-      return string_builder << "WebsiteConnected";
-    case MessageContentType::PassportDataSent:
-      return string_builder << "PassportDataSent";
-    case MessageContentType::PassportDataReceived:
-      return string_builder << "PassportDataReceived";
-    case MessageContentType::Poll:
-      return string_builder << "Poll";
-    case MessageContentType::Dice:
-      return string_builder << "Dice";
-    case MessageContentType::ProximityAlertTriggered:
-      return string_builder << "ProximityAlertTriggered";
-    case MessageContentType::GroupCall:
-      return string_builder << "GroupCall";
-    case MessageContentType::InviteToGroupCall:
-      return string_builder << "InviteToGroupCall";
-    case MessageContentType::ChatSetTheme:
-      return string_builder << "ChatSetTheme";
-    case MessageContentType::WebViewDataSent:
-      return string_builder << "WebViewDataSent";
-    case MessageContentType::WebViewDataReceived:
-      return string_builder << "WebViewDataReceived";
-    case MessageContentType::GiftPremium:
-      return string_builder << "GiftPremium";
-    case MessageContentType::TopicCreate:
-      return string_builder << "TopicCreate";
-    case MessageContentType::TopicEdit:
-      return string_builder << "TopicEdit";
-    case MessageContentType::SuggestProfilePhoto:
-      return string_builder << "SuggestProfilePhoto";
-    case MessageContentType::WriteAccessAllowed:
-      return string_builder << "WriteAccessAllowed";
-    case MessageContentType::RequestedDialog:
-      return string_builder << "ChatShared";
-    case MessageContentType::WebViewWriteAccessAllowed:
-      return string_builder << "WebAppWriteAccessAllowed";
-    case MessageContentType::SetBackground:
-      return string_builder << "SetBackground";
-    case MessageContentType::Story:
-      return string_builder << "Story";
-    case MessageContentType::WriteAccessAllowedByRequest:
-      return string_builder << "WriteAccessAllowedByRequest";
-    case MessageContentType::GiftCode:
-      return string_builder << "GiftCode";
-    case MessageContentType::Giveaway:
-      return string_builder << "Giveaway";
-    case MessageContentType::GiveawayLaunch:
-      return string_builder << "GiveawayLaunch";
-    case MessageContentType::GiveawayResults:
-      return string_builder << "GiveawayResults";
-    case MessageContentType::GiveawayWinners:
-      return string_builder << "GiveawayWinners";
-    case MessageContentType::ExpiredVideoNote:
-      return string_builder << "ExpiredVideoNote";
-    case MessageContentType::ExpiredVoiceNote:
-      return string_builder << "ExpiredVoiceNote";
-    case MessageContentType::BoostApply:
-      return string_builder << "BoostApply";
-    case MessageContentType::DialogShared:
-      return string_builder << "ChatShared";
-    case MessageContentType::PaidMedia:
-      return string_builder << "PaidMedia";
-    case MessageContentType::PaymentRefunded:
-      return string_builder << "PaymentRefunded";
-    case MessageContentType::GiftStars:
-      return string_builder << "GiftStars";
-    case MessageContentType::PrizeStars:
-      return string_builder << "PrizeStars";
-    case MessageContentType::StarGift:
-      return string_builder << "StarGift";
-    case MessageContentType::StarGiftUnique:
-      return string_builder << "UpgradedStarGift";
-    case MessageContentType::PaidMessagesRefunded:
-      return string_builder << "PaidMessagesRefunded";
-    case MessageContentType::PaidMessagesPrice:
-      return string_builder << "PaidMessagesPrice";
-    default:
-      return string_builder << "Invalid type " << static_cast<int32>(content_type);
-  }
-}
-
-bool is_allowed_invert_caption_message_content(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Photo:
-    case MessageContentType::Video:
-      return true;
-    default:
-      return false;
-  }
-}
-
-bool is_allowed_media_group_content(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::Photo:
-    case MessageContentType::Video:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-      return true;
-    case MessageContentType::Animation:
-    case MessageContentType::Contact:
-    case MessageContentType::Game:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Sticker:
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Venue:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::Story:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool is_homogenous_media_group_content(MessageContentType content_type) {
-  return content_type == MessageContentType::Audio || content_type == MessageContentType::Document;
-}
-
-bool can_be_secret_message_content(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Photo:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-      return true;
-    case MessageContentType::Contact:
-    case MessageContentType::Document:
-    case MessageContentType::Game:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Sticker:
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Venue:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::Story:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool can_be_local_message_content(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Contact:
-    case MessageContentType::Document:
-    case MessageContentType::Location:
-    case MessageContentType::Photo:
-    case MessageContentType::Sticker:
-    case MessageContentType::Text:
-    case MessageContentType::Venue:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-    case MessageContentType::Story:
-      return true;
-    case MessageContentType::Game:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Unsupported:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool is_service_message_content(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Contact:
-    case MessageContentType::Dice:
-    case MessageContentType::Document:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::Game:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Photo:
-    case MessageContentType::Poll:
-    case MessageContentType::Sticker:
-    case MessageContentType::Story:
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Venue:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-      return false;
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return true;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool is_editable_message_content(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::Game:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Photo:
-    case MessageContentType::Text:
-    case MessageContentType::Video:
-    case MessageContentType::VoiceNote:
-      return true;
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Poll:
-    case MessageContentType::Story:
-    case MessageContentType::Contact:
-    case MessageContentType::Dice:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::Location:
-    case MessageContentType::Sticker:
-    case MessageContentType::Venue:
-    case MessageContentType::VideoNote:
-    case MessageContentType::Invoice:
-    case MessageContentType::Unsupported:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool is_supported_reply_message_content(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Contact:
-    case MessageContentType::Dice:
-    case MessageContentType::Document:
-    case MessageContentType::Game:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::Invoice:
-    case MessageContentType::Location:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Photo:
-    case MessageContentType::Poll:
-    case MessageContentType::Sticker:
-    case MessageContentType::Story:
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Venue:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-      // update documentation when the list changes
-      return true;
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::LiveLocation:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool is_expired_message_content(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-      return true;
-    default:
-      return false;
-  }
-}
-
-MessageContentType get_expired_message_content_type(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Photo:
-      return MessageContentType::ExpiredPhoto;
-    case MessageContentType::Video:
-      return MessageContentType::ExpiredVideo;
-    case MessageContentType::VideoNote:
-      return MessageContentType::ExpiredVideoNote;
-    case MessageContentType::VoiceNote:
-      return MessageContentType::ExpiredVoiceNote;
-    default:
-      return MessageContentType::None;
-  }
-}
-
-bool can_have_message_content_caption(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Photo:
-    case MessageContentType::Video:
-    case MessageContentType::VoiceNote:
-      return true;
-    case MessageContentType::Contact:
-    case MessageContentType::Game:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Sticker:
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Venue:
-    case MessageContentType::VideoNote:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::Poll:
-    case MessageContentType::Dice:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::Story:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool can_send_message_content_to_secret_chat(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Contact:
-    case MessageContentType::Document:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::Photo:
-    case MessageContentType::Sticker:
-    case MessageContentType::Text:
-    case MessageContentType::Venue:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-      return true;
-    case MessageContentType::Dice:
-    case MessageContentType::Game:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::Invoice:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Poll:
-    case MessageContentType::Story:
-      return false;
-    case MessageContentType::None:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::BoostApply:
-    case MessageContentType::DialogShared:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-uint64 get_message_content_chain_id(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::Invoice:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Photo:
-    case MessageContentType::Sticker:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-      return 1;
-    default:
-      return 2;
-  }
-}
-
-bool get_default_service_message_content_reactions_are_possible(MessageContentType content_type) {
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Contact:
-    case MessageContentType::Dice:
-    case MessageContentType::Document:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::Game:
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayWinners:
-    case MessageContentType::Invoice:
-    case MessageContentType::LiveLocation:
-    case MessageContentType::Location:
-    case MessageContentType::PaidMedia:
-    case MessageContentType::Photo:
-    case MessageContentType::Poll:
-    case MessageContentType::Sticker:
-    case MessageContentType::Story:
-    case MessageContentType::Text:
-    case MessageContentType::Unsupported:
-    case MessageContentType::Venue:
-    case MessageContentType::Video:
-    case MessageContentType::VideoNote:
-    case MessageContentType::VoiceNote:
-    case MessageContentType::ChatCreate:
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::ChannelCreate:
-    case MessageContentType::ChannelMigrateFrom:
-    case MessageContentType::CustomServiceAction:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::RequestedDialog:
-    case MessageContentType::GiveawayLaunch:
-    case MessageContentType::DialogShared:
-      return false;
-    case MessageContentType::ChatChangeTitle:
-    case MessageContentType::ChatChangePhoto:
-    case MessageContentType::ChatDeletePhoto:
-    case MessageContentType::ChatAddUsers:
-    case MessageContentType::ChatJoinedByLink:
-    case MessageContentType::ChatDeleteUser:
-    case MessageContentType::PinMessage:
-    case MessageContentType::GameScore:
-    case MessageContentType::ScreenshotTaken:
-    case MessageContentType::ChatSetTtl:
-    case MessageContentType::Call:
-    case MessageContentType::PaymentSuccessful:
-    case MessageContentType::ContactRegistered:
-    case MessageContentType::WebsiteConnected:
-    case MessageContentType::ProximityAlertTriggered:
-    case MessageContentType::GroupCall:
-    case MessageContentType::InviteToGroupCall:
-    case MessageContentType::ChatSetTheme:
-    case MessageContentType::GiftPremium:
-    case MessageContentType::TopicCreate:
-    case MessageContentType::TopicEdit:
-    case MessageContentType::SuggestProfilePhoto:
-    case MessageContentType::WriteAccessAllowed:
-    case MessageContentType::WebViewWriteAccessAllowed:
-    case MessageContentType::SetBackground:
-    case MessageContentType::WriteAccessAllowedByRequest:
-    case MessageContentType::GiftCode:
-    case MessageContentType::GiveawayResults:
-    case MessageContentType::BoostApply:
-    case MessageContentType::PaymentRefunded:
-    case MessageContentType::GiftStars:
-    case MessageContentType::PrizeStars:
-    case MessageContentType::StarGift:
-    case MessageContentType::StarGiftUnique:
-    case MessageContentType::PaidMessagesRefunded:
-    case MessageContentType::PaidMessagesPrice:
-      return true;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageContentType.h b/third-party/td/td/td/telegram/MessageContentType.h
deleted file mode 100644
index 809a0d59bb..0000000000
--- a/third-party/td/td/td/telegram/MessageContentType.h
+++ /dev/null
@@ -1,131 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class MessageContentType : int32 {
-  None = -1,
-  Text,
-  Animation,
-  Audio,
-  Document,
-  Photo,
-  Sticker,
-  Video,
-  VoiceNote,
-  Contact,
-  Location,
-  Venue,
-  ChatCreate,
-  ChatChangeTitle,
-  ChatChangePhoto,
-  ChatDeletePhoto,
-  ChatDeleteHistory,
-  ChatAddUsers,
-  ChatJoinedByLink,
-  ChatDeleteUser,
-  ChatMigrateTo,
-  ChannelCreate,
-  ChannelMigrateFrom,
-  PinMessage,
-  Game,
-  GameScore,
-  ScreenshotTaken,
-  ChatSetTtl,
-  Unsupported,
-  Call,
-  Invoice,
-  PaymentSuccessful,
-  VideoNote,
-  ContactRegistered,
-  ExpiredPhoto,
-  ExpiredVideo,
-  LiveLocation,
-  CustomServiceAction,
-  WebsiteConnected,
-  PassportDataSent,
-  PassportDataReceived,
-  Poll,
-  Dice,
-  ProximityAlertTriggered,
-  GroupCall,
-  InviteToGroupCall,
-  ChatSetTheme,
-  WebViewDataSent,
-  WebViewDataReceived,
-  GiftPremium,
-  TopicCreate,
-  TopicEdit,
-  SuggestProfilePhoto,
-  WriteAccessAllowed,
-  RequestedDialog,
-  WebViewWriteAccessAllowed,
-  SetBackground,
-  Story,
-  WriteAccessAllowedByRequest,
-  GiftCode,
-  Giveaway,
-  GiveawayLaunch,
-  GiveawayResults,
-  GiveawayWinners,
-  ExpiredVideoNote,
-  ExpiredVoiceNote,
-  BoostApply,
-  DialogShared,
-  PaidMedia,
-  PaymentRefunded,
-  GiftStars,
-  PrizeStars,
-  StarGift,
-  StarGiftUnique,
-  PaidMessagesRefunded,
-  PaidMessagesPrice
-};
-// increase MessageUnsupported::CURRENT_VERSION each time a new message content type is added
-
-StringBuilder &operator<<(StringBuilder &string_builder, MessageContentType content_type);
-
-bool is_allowed_invert_caption_message_content(MessageContentType content_type);
-
-bool is_allowed_media_group_content(MessageContentType content_type);
-
-bool is_homogenous_media_group_content(MessageContentType content_type);
-
-bool can_be_secret_message_content(MessageContentType content_type);
-
-bool can_be_local_message_content(MessageContentType content_type);
-
-bool is_service_message_content(MessageContentType content_type);
-
-bool is_editable_message_content(MessageContentType content_type);
-
-bool is_supported_reply_message_content(MessageContentType content_type);
-
-bool is_expired_message_content(MessageContentType content_type);
-
-MessageContentType get_expired_message_content_type(MessageContentType content_type);
-
-bool can_have_message_content_caption(MessageContentType content_type);
-
-bool can_send_message_content_to_secret_chat(MessageContentType content_type);
-
-uint64 get_message_content_chain_id(MessageContentType content_type);
-
-bool get_default_service_message_content_reactions_are_possible(MessageContentType content_type);
-
-struct MessageContentTypeHash {
-  uint32 operator()(MessageContentType content_type) const {
-    return Hash<int32>()(static_cast<int32>(content_type));
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageCopyOptions.h b/third-party/td/td/td/telegram/MessageCopyOptions.h
deleted file mode 100644
index 365b1a4be2..0000000000
--- a/third-party/td/td/td/telegram/MessageCopyOptions.h
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageInputReplyTo.h"
-#include "td/telegram/ReplyMarkup.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct MessageCopyOptions {
-  bool send_copy = false;
-  bool replace_caption = false;
-  bool new_invert_media = false;
-  FormattedText new_caption;
-  MessageInputReplyTo input_reply_to;
-  unique_ptr<ReplyMarkup> reply_markup;
-
-  MessageCopyOptions() = default;
-  MessageCopyOptions(bool send_copy, bool remove_caption) : send_copy(send_copy), replace_caption(remove_caption) {
-  }
-
-  bool is_supported_server_side(MessageId top_thread_message_id) const {
-    if (!send_copy) {
-      return true;
-    }
-    if ((replace_caption && !new_caption.text.empty()) || reply_markup != nullptr) {
-      return false;
-    }
-    if (input_reply_to.is_valid() && (top_thread_message_id == MessageId() || input_reply_to.has_quote() ||
-                                      input_reply_to.get_same_chat_reply_to_message_id() != top_thread_message_id)) {
-      return false;
-    }
-    return true;
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, MessageCopyOptions copy_options) {
-  if (copy_options.send_copy) {
-    string_builder << "CopyOptions[replace_caption = " << copy_options.replace_caption;
-    if (copy_options.replace_caption) {
-      string_builder << ", new_caption = " << copy_options.new_caption
-                     << ", new_show_caption_above_media = " << copy_options.new_invert_media;
-    }
-    if (copy_options.input_reply_to.is_valid()) {
-      string_builder << ", in reply to " << copy_options.input_reply_to;
-    }
-    if (copy_options.reply_markup != nullptr) {
-      string_builder << ", with reply markup";
-    }
-    string_builder << "]";
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageDb.cpp b/third-party/td/td/td/telegram/MessageDb.cpp
deleted file mode 100644
index dc04ca91bc..0000000000
--- a/third-party/td/td/td/telegram/MessageDb.cpp
+++ /dev/null
@@ -1,1237 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageDb.h"
-
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/Version.h"
-
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteStatement.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/SchedulerLocalStorage.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/unicode.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <array>
-#include <iterator>
-#include <limits>
-#include <tuple>
-#include <utility>
-
-namespace td {
-
-static constexpr int32 MESSAGE_DB_INDEX_COUNT = 30;
-static constexpr int32 MESSAGE_DB_INDEX_COUNT_OLD = 9;
-
-// NB: must happen inside a transaction
-Status init_message_db(SqliteDb &db, int32 version) {
-  LOG(INFO) << "Init message database " << tag("version", version);
-
-  // Check if database exists
-  TRY_RESULT(has_table, db.has_table("messages"));
-  if (!has_table) {
-    version = 0;
-  } else if (version > current_db_version()) {
-    TRY_STATUS(drop_message_db(db, version));
-    version = 0;
-  }
-
-  auto add_media_indices = [&db](int begin, int end) {
-    for (int i = begin; i < end; i++) {
-      TRY_STATUS(db.exec(PSLICE() << "CREATE INDEX IF NOT EXISTS message_index_" << i
-                                  << " ON messages (dialog_id, message_id) WHERE (index_mask & " << (1 << i)
-                                  << ") != 0"));
-    }
-    return Status::OK();
-  };
-
-  auto add_fts = [&db] {
-    TRY_STATUS(
-        db.exec("CREATE INDEX IF NOT EXISTS message_by_search_id ON messages "
-                "(search_id) WHERE search_id IS NOT NULL"));
-
-    TRY_STATUS(
-        db.exec("CREATE VIRTUAL TABLE IF NOT EXISTS messages_fts USING fts5(text, content='messages', "
-                "content_rowid='search_id', tokenize = \"unicode61 remove_diacritics 0 tokenchars '\a'\")"));
-    TRY_STATUS(db.exec(
-        "CREATE TRIGGER IF NOT EXISTS trigger_fts_delete BEFORE DELETE ON messages WHEN OLD.search_id IS NOT NULL"
-        " BEGIN INSERT INTO messages_fts(messages_fts, rowid, text) VALUES(\'delete\', OLD.search_id, OLD.text); END"));
-    TRY_STATUS(db.exec(
-        "CREATE TRIGGER IF NOT EXISTS trigger_fts_insert AFTER INSERT ON messages WHEN NEW.search_id IS NOT NULL"
-        " BEGIN INSERT INTO messages_fts(rowid, text) VALUES(NEW.search_id, NEW.text); END"));
-    //TRY_STATUS(db.exec(
-    //"CREATE TRIGGER IF NOT EXISTS trigger_fts_update AFTER UPDATE ON messages WHEN NEW.search_id IS NOT NULL OR "
-    //"OLD.search_id IS NOT NULL"
-    //" BEGIN "
-    //"INSERT INTO messages_fts(messages_fts, rowid, text) VALUES(\'delete\', OLD.search_id, OLD.text); "
-    //"INSERT INTO messages_fts(rowid, text) VALUES(NEW.search_id, NEW.text); "
-    //" END"));
-
-    return Status::OK();
-  };
-  auto add_call_index = [&db] {
-    for (int i = static_cast<int>(MessageSearchFilter::Call) - 1; i < static_cast<int>(MessageSearchFilter::MissedCall);
-         i++) {
-      TRY_STATUS(db.exec(PSLICE() << "CREATE INDEX IF NOT EXISTS full_message_index_" << i
-                                  << " ON messages (unique_message_id) WHERE (index_mask & " << (1 << i) << ") != 0"));
-    }
-    return Status::OK();
-  };
-  auto add_notification_id_index = [&db] {
-    return db.exec(
-        "CREATE INDEX IF NOT EXISTS message_by_notification_id ON messages (dialog_id, notification_id) WHERE "
-        "notification_id IS NOT NULL");
-  };
-  auto add_scheduled_messages_table = [&db] {
-    TRY_STATUS(
-        db.exec("CREATE TABLE IF NOT EXISTS scheduled_messages (dialog_id INT8, message_id INT8, "
-                "server_message_id INT4, data BLOB, PRIMARY KEY (dialog_id, message_id))"));
-
-    TRY_STATUS(
-        db.exec("CREATE INDEX IF NOT EXISTS message_by_server_message_id ON scheduled_messages "
-                "(dialog_id, server_message_id) WHERE server_message_id IS NOT NULL"));
-    return Status::OK();
-  };
-
-  if (version == 0) {
-    LOG(INFO) << "Create new message database";
-    TRY_STATUS(
-        db.exec("CREATE TABLE IF NOT EXISTS messages (dialog_id INT8, message_id INT8, unique_message_id INT4, "
-                "sender_user_id INT8, random_id INT8, data BLOB, ttl_expires_at INT4, index_mask INT4, search_id INT8, "
-                "text STRING, notification_id INT4, top_thread_message_id INT8, PRIMARY KEY (dialog_id, message_id))"));
-
-    TRY_STATUS(
-        db.exec("CREATE INDEX IF NOT EXISTS message_by_random_id ON messages (dialog_id, random_id) "
-                "WHERE random_id IS NOT NULL"));
-
-    TRY_STATUS(
-        db.exec("CREATE INDEX IF NOT EXISTS message_by_unique_message_id ON messages "
-                "(unique_message_id) WHERE unique_message_id IS NOT NULL"));
-
-    TRY_STATUS(
-        db.exec("CREATE INDEX IF NOT EXISTS message_by_ttl ON messages "
-                "(ttl_expires_at) WHERE ttl_expires_at IS NOT NULL"));
-
-    TRY_STATUS(add_media_indices(0, MESSAGE_DB_INDEX_COUNT));
-
-    TRY_STATUS(add_fts());
-
-    TRY_STATUS(add_call_index());
-
-    TRY_STATUS(add_notification_id_index());
-
-    TRY_STATUS(add_scheduled_messages_table());
-
-    version = current_db_version();
-  }
-  if (version < static_cast<int32>(DbVersion::AddMessageDbMediaIndex)) {
-    TRY_STATUS(db.exec("ALTER TABLE messages ADD COLUMN index_mask INT4"));
-    TRY_STATUS(add_media_indices(0, MESSAGE_DB_INDEX_COUNT_OLD));
-  }
-  if (version < static_cast<int32>(DbVersion::AddMessageDb30MediaIndex)) {
-    TRY_STATUS(add_media_indices(MESSAGE_DB_INDEX_COUNT_OLD, MESSAGE_DB_INDEX_COUNT));
-  }
-  if (version < static_cast<int32>(DbVersion::AddMessageDbFts)) {
-    TRY_STATUS(db.exec("ALTER TABLE messages ADD COLUMN search_id INT8"));
-    TRY_STATUS(db.exec("ALTER TABLE messages ADD COLUMN text STRING"));
-    TRY_STATUS(add_fts());
-  }
-  if (version < static_cast<int32>(DbVersion::AddMessagesCallIndex)) {
-    TRY_STATUS(add_call_index());
-  }
-  if (version < static_cast<int32>(DbVersion::AddNotificationsSupport)) {
-    TRY_STATUS(db.exec("ALTER TABLE messages ADD COLUMN notification_id INT4"));
-    TRY_STATUS(add_notification_id_index());
-  }
-  if (version < static_cast<int32>(DbVersion::AddScheduledMessages)) {
-    TRY_STATUS(add_scheduled_messages_table());
-  }
-  if (version < static_cast<int32>(DbVersion::AddMessageThreadSupport)) {
-    TRY_STATUS(db.exec("ALTER TABLE messages ADD COLUMN top_thread_message_id INT8"));
-  }
-  return Status::OK();
-}
-
-// NB: must happen inside a transaction
-Status drop_message_db(SqliteDb &db, int32 version) {
-  LOG(WARNING) << "Drop message database " << tag("version", version)
-               << tag("current_db_version", current_db_version());
-  return db.exec("DROP TABLE IF EXISTS messages");
-}
-
-class MessageDbImpl final : public MessageDbSyncInterface {
- public:
-  explicit MessageDbImpl(SqliteDb db) : db_(std::move(db)) {
-    init().ensure();
-  }
-
-  Status init() {
-    TRY_RESULT_ASSIGN(
-        add_message_stmt_,
-        db_.get_statement("INSERT OR REPLACE INTO messages VALUES(?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12)"));
-    TRY_RESULT_ASSIGN(delete_message_stmt_,
-                      db_.get_statement("DELETE FROM messages WHERE dialog_id = ?1 AND message_id = ?2"));
-    TRY_RESULT_ASSIGN(delete_all_dialog_messages_stmt_,
-                      db_.get_statement("DELETE FROM messages WHERE dialog_id = ?1 AND message_id <= ?2"));
-    TRY_RESULT_ASSIGN(delete_dialog_messages_by_sender_stmt_,
-                      db_.get_statement("DELETE FROM messages WHERE dialog_id = ?1 AND sender_user_id = ?2"));
-
-    TRY_RESULT_ASSIGN(
-        get_message_stmt_,
-        db_.get_statement("SELECT message_id, data FROM messages WHERE dialog_id = ?1 AND message_id = ?2"));
-    TRY_RESULT_ASSIGN(
-        get_message_by_random_id_stmt_,
-        db_.get_statement("SELECT message_id, data FROM messages WHERE dialog_id = ?1 AND random_id = ?2"));
-    TRY_RESULT_ASSIGN(
-        get_message_by_unique_message_id_stmt_,
-        db_.get_statement("SELECT dialog_id, message_id, data FROM messages WHERE unique_message_id = ?1"));
-
-    TRY_RESULT_ASSIGN(
-        get_expiring_messages_stmt_,
-        db_.get_statement("SELECT dialog_id, message_id, data FROM messages WHERE ttl_expires_at <= ?1 LIMIT ?2"));
-
-    TRY_RESULT_ASSIGN(get_messages_stmt_.asc_stmt_,
-                      db_.get_statement("SELECT data, message_id FROM messages WHERE dialog_id = ?1 AND message_id > "
-                                        "?2 ORDER BY message_id ASC LIMIT ?3"));
-    TRY_RESULT_ASSIGN(get_messages_stmt_.desc_stmt_,
-                      db_.get_statement("SELECT data, message_id FROM messages WHERE dialog_id = ?1 AND message_id < "
-                                        "?2 ORDER BY message_id DESC LIMIT ?3"));
-    TRY_RESULT_ASSIGN(get_scheduled_messages_stmt_,
-                      db_.get_statement("SELECT data, message_id FROM scheduled_messages WHERE dialog_id = ?1 AND "
-                                        "message_id < ?2 ORDER BY message_id DESC LIMIT ?3"));
-    TRY_RESULT_ASSIGN(get_messages_from_notification_id_stmt_,
-                      db_.get_statement("SELECT data, message_id FROM messages WHERE dialog_id = ?1 AND "
-                                        "notification_id < ?2 ORDER BY notification_id DESC LIMIT ?3"));
-    TRY_RESULT_ASSIGN(get_messages_fts_stmt_,
-                      db_.get_statement("SELECT dialog_id, message_id, data, search_id FROM messages WHERE search_id "
-                                        "IN (SELECT rowid FROM messages_fts WHERE messages_fts MATCH ?1 AND rowid < ?2 "
-                                        "ORDER BY rowid DESC LIMIT ?3) ORDER BY search_id DESC"));
-
-    for (int32 i = 0; i < MESSAGE_DB_INDEX_COUNT; i++) {
-      TRY_RESULT_ASSIGN(
-          get_message_ids_stmts_[i],
-          db_.get_statement(
-              PSLICE() << "SELECT message_id FROM messages WHERE dialog_id = ?1 AND message_id < ?2 AND (index_mask & "
-                       << (1 << i) << ") != 0 ORDER BY message_id DESC LIMIT 1000000"));
-
-      TRY_RESULT_ASSIGN(
-          get_messages_from_index_stmts_[i].desc_stmt_,
-          db_.get_statement(
-              PSLICE()
-              << "SELECT data, message_id FROM messages WHERE dialog_id = ?1 AND message_id < ?2 AND (index_mask & "
-              << (1 << i) << ") != 0 ORDER BY message_id DESC LIMIT ?3"));
-
-      TRY_RESULT_ASSIGN(
-          get_messages_from_index_stmts_[i].asc_stmt_,
-          db_.get_statement(
-              PSLICE()
-              << "SELECT data, message_id FROM messages WHERE dialog_id = ?1 AND message_id > ?2 AND (index_mask & "
-              << (1 << i) << ") != 0 ORDER BY message_id ASC LIMIT ?3"));
-
-      // LOG(ERROR) << get_messages_from_index_stmts_[i].desc_stmt_.explain().ok();
-      // LOG(ERROR) << get_messages_from_index_stmts_[i].asc_stmt_.explain().ok();
-    }
-
-    for (int i = static_cast<int>(MessageSearchFilter::Call) - 1, pos = 0;
-         i < static_cast<int>(MessageSearchFilter::MissedCall); i++, pos++) {
-      TRY_RESULT_ASSIGN(
-          get_calls_stmts_[pos],
-          db_.get_statement(
-              PSLICE()
-              << "SELECT dialog_id, message_id, data FROM messages WHERE unique_message_id < ?1 AND (index_mask & "
-              << (1 << i) << ") != 0 ORDER BY unique_message_id DESC LIMIT ?2"));
-    }
-
-    TRY_RESULT_ASSIGN(add_scheduled_message_stmt_,
-                      db_.get_statement("INSERT OR REPLACE INTO scheduled_messages VALUES(?1, ?2, ?3, ?4)"));
-    TRY_RESULT_ASSIGN(
-        get_scheduled_message_stmt_,
-        db_.get_statement("SELECT message_id, data FROM scheduled_messages WHERE dialog_id = ?1 AND message_id = ?2"));
-    TRY_RESULT_ASSIGN(
-        get_scheduled_server_message_stmt_,
-        db_.get_statement(
-            "SELECT message_id, data FROM scheduled_messages WHERE dialog_id = ?1 AND server_message_id = ?2"));
-    TRY_RESULT_ASSIGN(delete_scheduled_message_stmt_,
-                      db_.get_statement("DELETE FROM scheduled_messages WHERE dialog_id = ?1 AND message_id = ?2"));
-    TRY_RESULT_ASSIGN(
-        delete_scheduled_server_message_stmt_,
-        db_.get_statement("DELETE FROM scheduled_messages WHERE dialog_id = ?1 AND server_message_id = ?2"));
-
-    // LOG(ERROR) << get_message_stmt_.explain().ok();
-    // LOG(ERROR) << get_messages_from_notification_id_stmt.explain().ok();
-    // LOG(ERROR) << get_message_by_random_id_stmt_.explain().ok();
-    // LOG(ERROR) << get_message_by_unique_message_id_stmt_.explain().ok();
-
-    // LOG(ERROR) << get_expiring_messages_stmt_.explain().ok();
-
-    // LOG(FATAL) << "EXPLAINED";
-
-    return Status::OK();
-  }
-
-  void add_message(MessageFullId message_full_id, ServerMessageId unique_message_id, DialogId sender_dialog_id,
-                   int64 random_id, int32 ttl_expires_at, int32 index_mask, int64 search_id, string text,
-                   NotificationId notification_id, MessageId top_thread_message_id, BufferSlice data) final {
-    LOG(INFO) << "Add " << message_full_id << " to database";
-    auto dialog_id = message_full_id.get_dialog_id();
-    auto message_id = message_full_id.get_message_id();
-    LOG_CHECK(dialog_id.is_valid()) << dialog_id << ' ' << message_id << ' ' << message_full_id;
-    CHECK(message_id.is_valid());
-    SCOPE_EXIT {
-      add_message_stmt_.reset();
-    };
-    add_message_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    add_message_stmt_.bind_int64(2, message_id.get()).ensure();
-
-    if (unique_message_id.is_valid()) {
-      add_message_stmt_.bind_int32(3, unique_message_id.get()).ensure();
-    } else {
-      add_message_stmt_.bind_null(3).ensure();
-    }
-
-    if (sender_dialog_id.is_valid()) {
-      add_message_stmt_.bind_int64(4, sender_dialog_id.get()).ensure();
-    } else {
-      add_message_stmt_.bind_null(4).ensure();
-    }
-
-    if (random_id != 0) {
-      add_message_stmt_.bind_int64(5, random_id).ensure();
-    } else {
-      add_message_stmt_.bind_null(5).ensure();
-    }
-
-    add_message_stmt_.bind_blob(6, data.as_slice()).ensure();
-
-    if (ttl_expires_at != 0) {
-      add_message_stmt_.bind_int32(7, ttl_expires_at).ensure();
-    } else {
-      add_message_stmt_.bind_null(7).ensure();
-    }
-
-    if (index_mask != 0) {
-      add_message_stmt_.bind_int32(8, index_mask).ensure();
-    } else {
-      add_message_stmt_.bind_null(8).ensure();
-    }
-    if (search_id != 0) {
-      // add dialog_id to text
-      text += PSTRING() << " \a" << dialog_id.get();
-      if (index_mask != 0) {
-        for (int i = 0; i < MESSAGE_DB_INDEX_COUNT; i++) {
-          if ((index_mask & (1 << i))) {
-            text += PSTRING() << " \a\a" << i;
-          }
-        }
-      }
-      add_message_stmt_.bind_int64(9, search_id).ensure();
-    } else {
-      text = "";
-      add_message_stmt_.bind_null(9).ensure();
-    }
-    if (!text.empty()) {
-      add_message_stmt_.bind_string(10, text).ensure();
-    } else {
-      add_message_stmt_.bind_null(10).ensure();
-    }
-    if (notification_id.is_valid()) {
-      add_message_stmt_.bind_int32(11, notification_id.get()).ensure();
-    } else {
-      add_message_stmt_.bind_null(11).ensure();
-    }
-    if (top_thread_message_id.is_valid()) {
-      add_message_stmt_.bind_int64(12, top_thread_message_id.get()).ensure();
-    } else {
-      add_message_stmt_.bind_null(12).ensure();
-    }
-
-    add_message_stmt_.step().ensure();
-  }
-
-  void add_scheduled_message(MessageFullId message_full_id, BufferSlice data) final {
-    LOG(INFO) << "Add " << message_full_id << " to database";
-    auto dialog_id = message_full_id.get_dialog_id();
-    auto message_id = message_full_id.get_message_id();
-    CHECK(dialog_id.is_valid());
-    CHECK(message_id.is_valid_scheduled());
-    SCOPE_EXIT {
-      add_scheduled_message_stmt_.reset();
-    };
-    add_scheduled_message_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    add_scheduled_message_stmt_.bind_int64(2, message_id.get()).ensure();
-
-    if (message_id.is_scheduled_server()) {
-      add_scheduled_message_stmt_.bind_int32(3, message_id.get_scheduled_server_message_id().get()).ensure();
-    } else {
-      add_scheduled_message_stmt_.bind_null(3).ensure();
-    }
-
-    add_scheduled_message_stmt_.bind_blob(4, data.as_slice()).ensure();
-
-    add_scheduled_message_stmt_.step().ensure();
-  }
-
-  void delete_message(MessageFullId message_full_id) final {
-    LOG(INFO) << "Delete " << message_full_id << " from database";
-    auto dialog_id = message_full_id.get_dialog_id();
-    auto message_id = message_full_id.get_message_id();
-    CHECK(dialog_id.is_valid());
-    CHECK(message_id.is_valid() || message_id.is_valid_scheduled());
-    bool is_scheduled = message_id.is_scheduled();
-    bool is_scheduled_server = is_scheduled && message_id.is_scheduled_server();
-    auto &stmt = is_scheduled
-                     ? (is_scheduled_server ? delete_scheduled_server_message_stmt_ : delete_scheduled_message_stmt_)
-                     : delete_message_stmt_;
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-    stmt.bind_int64(1, dialog_id.get()).ensure();
-    if (is_scheduled_server) {
-      stmt.bind_int32(2, message_id.get_scheduled_server_message_id().get()).ensure();
-    } else {
-      stmt.bind_int64(2, message_id.get()).ensure();
-    }
-    stmt.step().ensure();
-  }
-
-  void delete_all_dialog_messages(DialogId dialog_id, MessageId from_message_id) final {
-    LOG(INFO) << "Delete all messages in " << dialog_id << " up to " << from_message_id << " from database";
-    CHECK(dialog_id.is_valid());
-    CHECK(from_message_id.is_valid());
-    SCOPE_EXIT {
-      delete_all_dialog_messages_stmt_.reset();
-    };
-    delete_all_dialog_messages_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    delete_all_dialog_messages_stmt_.bind_int64(2, from_message_id.get()).ensure();
-    auto status = delete_all_dialog_messages_stmt_.step();
-    if (status.is_error()) {
-      LOG(ERROR) << status;
-    }
-  }
-
-  void delete_dialog_messages_by_sender(DialogId dialog_id, DialogId sender_dialog_id) final {
-    LOG(INFO) << "Delete all messages in " << dialog_id << " sent by " << sender_dialog_id << " from database";
-    CHECK(dialog_id.is_valid());
-    CHECK(sender_dialog_id.is_valid());
-    SCOPE_EXIT {
-      delete_dialog_messages_by_sender_stmt_.reset();
-    };
-    delete_dialog_messages_by_sender_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    delete_dialog_messages_by_sender_stmt_.bind_int64(2, sender_dialog_id.get()).ensure();
-    delete_dialog_messages_by_sender_stmt_.step().ensure();
-  }
-
-  Result<MessageDbDialogMessage> get_message(MessageFullId message_full_id) final {
-    auto dialog_id = message_full_id.get_dialog_id();
-    auto message_id = message_full_id.get_message_id();
-    CHECK(dialog_id.is_valid());
-    CHECK(message_id.is_valid() || message_id.is_valid_scheduled());
-    bool is_scheduled = message_id.is_scheduled();
-    bool is_scheduled_server = is_scheduled && message_id.is_scheduled_server();
-    auto &stmt = is_scheduled ? (is_scheduled_server ? get_scheduled_server_message_stmt_ : get_scheduled_message_stmt_)
-                              : get_message_stmt_;
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-
-    stmt.bind_int64(1, dialog_id.get()).ensure();
-    if (is_scheduled_server) {
-      stmt.bind_int32(2, message_id.get_scheduled_server_message_id().get()).ensure();
-    } else {
-      stmt.bind_int64(2, message_id.get()).ensure();
-    }
-    stmt.step().ensure();
-    if (!stmt.has_row()) {
-      return Status::Error("Not found");
-    }
-    MessageId received_message_id(stmt.view_int64(0));
-    Slice data = stmt.view_blob(1);
-    if (is_scheduled_server) {
-      CHECK(received_message_id.is_scheduled());
-      CHECK(received_message_id.is_scheduled_server());
-      CHECK(received_message_id.get_scheduled_server_message_id() == message_id.get_scheduled_server_message_id());
-    } else {
-      LOG_CHECK(received_message_id == message_id)
-          << received_message_id << ' ' << message_id << ' ' << get_message_info(received_message_id, data, true).first;
-    }
-    return MessageDbDialogMessage{received_message_id, BufferSlice(data)};
-  }
-
-  Result<MessageDbMessage> get_message_by_unique_message_id(ServerMessageId unique_message_id) final {
-    if (!unique_message_id.is_valid()) {
-      return Status::Error("Invalid unique_message_id");
-    }
-    SCOPE_EXIT {
-      get_message_by_unique_message_id_stmt_.reset();
-    };
-    get_message_by_unique_message_id_stmt_.bind_int32(1, unique_message_id.get()).ensure();
-    get_message_by_unique_message_id_stmt_.step().ensure();
-    if (!get_message_by_unique_message_id_stmt_.has_row()) {
-      return Status::Error("Not found");
-    }
-    DialogId dialog_id(get_message_by_unique_message_id_stmt_.view_int64(0));
-    MessageId message_id(get_message_by_unique_message_id_stmt_.view_int64(1));
-    return MessageDbMessage{dialog_id, message_id, BufferSlice(get_message_by_unique_message_id_stmt_.view_blob(2))};
-  }
-
-  Result<MessageDbDialogMessage> get_message_by_random_id(DialogId dialog_id, int64 random_id) final {
-    SCOPE_EXIT {
-      get_message_by_random_id_stmt_.reset();
-    };
-    get_message_by_random_id_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    get_message_by_random_id_stmt_.bind_int64(2, random_id).ensure();
-    get_message_by_random_id_stmt_.step().ensure();
-    if (!get_message_by_random_id_stmt_.has_row()) {
-      return Status::Error("Not found");
-    }
-    MessageId message_id(get_message_by_random_id_stmt_.view_int64(0));
-    return MessageDbDialogMessage{message_id, BufferSlice(get_message_by_random_id_stmt_.view_blob(1))};
-  }
-
-  Result<MessageDbDialogMessage> get_dialog_message_by_date(DialogId dialog_id, MessageId first_message_id,
-                                                            MessageId last_message_id, int32 date) final {
-    int64 left_message_id = first_message_id.get();
-    int64 right_message_id = last_message_id.get();
-    LOG_CHECK(left_message_id <= right_message_id) << first_message_id << " " << last_message_id;
-    auto first_messages = get_messages_inner(get_messages_stmt_.asc_stmt_, dialog_id, left_message_id - 1, 1);
-    if (!first_messages.empty()) {
-      MessageId real_first_message_id;
-      int32 real_first_message_date;
-      std::tie(real_first_message_id, real_first_message_date) = get_message_info(first_messages[0]);
-      if (real_first_message_date <= date) {
-        // we definitely have at least one suitable message, let's do a binary search
-        left_message_id = real_first_message_id.get();
-
-        MessageId prev_found_message_id;
-        while (left_message_id <= right_message_id) {
-          auto middle_message_id = left_message_id + ((right_message_id - left_message_id) >> 1);
-          auto messages = get_messages_inner(get_messages_stmt_.asc_stmt_, dialog_id, middle_message_id, 1);
-
-          MessageId message_id;
-          int32 message_date = std::numeric_limits<int32>::max();
-          if (!messages.empty()) {
-            std::tie(message_id, message_date) = get_message_info(messages[0]);
-          }
-          if (message_date <= date) {
-            left_message_id = message_id.get();
-          } else {
-            right_message_id = middle_message_id - 1;
-          }
-
-          if (prev_found_message_id == message_id) {
-            // we may be very close to the result, let's check
-            auto left_messages = get_messages_inner(get_messages_stmt_.asc_stmt_, dialog_id, left_message_id - 1, 2);
-            CHECK(!left_messages.empty());
-            if (left_messages.size() == 1) {
-              // only one message has left, result is found
-              break;
-            }
-
-            MessageId next_message_id;
-            int32 next_message_date;
-            std::tie(next_message_id, next_message_date) = get_message_info(left_messages[1]);
-            if (next_message_date <= date) {
-              // next message has lesser date, adjusting left message
-              left_message_id = next_message_id.get();
-            } else {
-              // next message has bigger date, result is found
-              break;
-            }
-          }
-
-          prev_found_message_id = message_id;
-        }
-
-        // left_message_id is always an identifier of suitable message, let's return it
-        return get_message({dialog_id, MessageId(left_message_id)});
-      }
-    }
-
-    return Status::Error("Not found");
-  }
-
-  vector<MessageDbMessage> get_expiring_messages(int32 expires_till, int32 limit) final {
-    SCOPE_EXIT {
-      get_expiring_messages_stmt_.reset();
-    };
-
-    vector<MessageDbMessage> messages;
-    get_expiring_messages_stmt_.bind_int32(1, expires_till).ensure();
-    get_expiring_messages_stmt_.bind_int32(2, limit).ensure();
-    get_expiring_messages_stmt_.step().ensure();
-
-    while (get_expiring_messages_stmt_.has_row()) {
-      DialogId dialog_id(get_expiring_messages_stmt_.view_int64(0));
-      MessageId message_id(get_expiring_messages_stmt_.view_int64(1));
-      BufferSlice data(get_expiring_messages_stmt_.view_blob(2));
-      messages.push_back(MessageDbMessage{dialog_id, message_id, std::move(data)});
-      get_expiring_messages_stmt_.step().ensure();
-    }
-
-    return messages;
-  }
-
-  MessageDbCalendar get_dialog_message_calendar(MessageDbDialogCalendarQuery query) final {
-    auto &stmt = get_messages_from_index_stmts_[message_search_filter_index(query.filter)].desc_stmt_;
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-    int32 limit = 1000;
-    stmt.bind_int64(1, query.dialog_id.get()).ensure();
-    stmt.bind_int64(2, query.from_message_id.get()).ensure();
-    stmt.bind_int32(3, limit).ensure();
-
-    vector<MessageDbDialogMessage> messages;
-    vector<int32> total_counts;
-    stmt.step().ensure();
-    int32 current_day = std::numeric_limits<int32>::max();
-    while (stmt.has_row()) {
-      auto data_slice = stmt.view_blob(0);
-      MessageId message_id(stmt.view_int64(1));
-      auto info = get_message_info(message_id, data_slice, false);
-      auto day = (query.tz_offset + info.second) / 86400;
-      if (day >= current_day) {
-        CHECK(!total_counts.empty());
-        total_counts.back()++;
-      } else {
-        current_day = day;
-        messages.push_back(MessageDbDialogMessage{message_id, BufferSlice(data_slice)});
-        total_counts.push_back(1);
-      }
-      stmt.step().ensure();
-    }
-    return MessageDbCalendar{std::move(messages), std::move(total_counts)};
-  }
-
-  Result<MessageDbMessagePositions> get_dialog_sparse_message_positions(
-      MessageDbGetDialogSparseMessagePositionsQuery query) final {
-    auto &stmt = get_message_ids_stmts_[message_search_filter_index(query.filter)];
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-    stmt.bind_int64(1, query.dialog_id.get()).ensure();
-    stmt.bind_int64(2, query.from_message_id.get()).ensure();
-
-    vector<MessageId> message_ids;
-    stmt.step().ensure();
-    while (stmt.has_row()) {
-      message_ids.push_back(MessageId(stmt.view_int64(0)));
-      stmt.step().ensure();
-    }
-
-    MessageDbMessagePositions positions;
-    int32 limit = min(query.limit, static_cast<int32>(message_ids.size()));
-    if (limit > 0) {
-      double delta = static_cast<double>(message_ids.size()) / limit;
-      positions.total_count = static_cast<int32>(message_ids.size());
-      positions.positions.reserve(limit);
-      for (int32 i = 0; i < limit; i++) {
-        auto position = static_cast<int32>((i + 0.5) * delta);
-        auto message_id = message_ids[position];
-        TRY_RESULT(message, get_message({query.dialog_id, message_id}));
-        auto date = get_message_info(message).second;
-        positions.positions.push_back(MessageDbMessagePosition{position, date, message_id});
-      }
-    }
-    return positions;
-  }
-
-  vector<MessageDbDialogMessage> get_messages(MessageDbMessagesQuery query) final {
-    if (query.filter != MessageSearchFilter::Empty) {
-      return get_messages_from_index(query.dialog_id, query.from_message_id, query.filter, query.offset, query.limit);
-    }
-    return get_messages_impl(get_messages_stmt_, query.dialog_id, query.from_message_id, query.offset, query.limit);
-  }
-
-  vector<MessageDbDialogMessage> get_scheduled_messages(DialogId dialog_id, int32 limit) final {
-    return get_messages_inner(get_scheduled_messages_stmt_, dialog_id, std::numeric_limits<int64>::max(), limit);
-  }
-
-  vector<MessageDbDialogMessage> get_messages_from_notification_id(DialogId dialog_id,
-                                                                   NotificationId from_notification_id,
-                                                                   int32 limit) final {
-    auto &stmt = get_messages_from_notification_id_stmt_;
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-    stmt.bind_int64(1, dialog_id.get()).ensure();
-    stmt.bind_int32(2, from_notification_id.get()).ensure();
-    stmt.bind_int32(3, limit).ensure();
-
-    vector<MessageDbDialogMessage> result;
-    stmt.step().ensure();
-    while (stmt.has_row()) {
-      auto data_slice = stmt.view_blob(0);
-      MessageId message_id(stmt.view_int64(1));
-      result.push_back(MessageDbDialogMessage{message_id, BufferSlice(data_slice)});
-      LOG(INFO) << "Load " << message_id << " in " << dialog_id << " from database";
-      stmt.step().ensure();
-    }
-    return result;
-  }
-
-  static string prepare_query(Slice query) {
-    auto is_word_character = [](uint32 a) {
-      switch (get_unicode_simple_category(a)) {
-        case UnicodeSimpleCategory::Letter:
-        case UnicodeSimpleCategory::DecimalNumber:
-        case UnicodeSimpleCategory::Number:
-          return true;
-        default:
-          return a == '_';
-      }
-    };
-
-    const size_t MAX_QUERY_SIZE = 1024;
-    query = utf8_truncate(query, MAX_QUERY_SIZE);
-    auto buf = StackAllocator::alloc(query.size() * 4 + 100);
-    StringBuilder sb(buf.as_slice());
-    bool in_word{false};
-
-    for (auto ptr = query.ubegin(), end = query.uend(); ptr < end;) {
-      uint32 code;
-      auto code_ptr = ptr;
-      ptr = next_utf8_unsafe(ptr, &code);
-      if (is_word_character(code)) {
-        if (!in_word) {
-          in_word = true;
-          sb << "\"";
-        }
-        sb << Slice(code_ptr, ptr);
-      } else {
-        if (in_word) {
-          in_word = false;
-          sb << "\" ";
-        }
-      }
-    }
-    if (in_word) {
-      sb << "\" ";
-    }
-
-    if (sb.is_error()) {
-      LOG(ERROR) << "StringBuilder buffer overflow";
-      return "";
-    }
-
-    return sb.as_cslice().str();
-  }
-
-  MessageDbFtsResult get_messages_fts(MessageDbFtsQuery query) final {
-    SCOPE_EXIT {
-      get_messages_fts_stmt_.reset();
-    };
-
-    LOG(INFO) << tag("query", query.query) << query.dialog_id << tag("filter", query.filter)
-              << tag("from_search_id", query.from_search_id) << tag("limit", query.limit);
-    string words = prepare_query(query.query);
-    LOG(INFO) << tag("from", query.query) << tag("to", words);
-
-    // dialog_id kludge
-    if (query.dialog_id.is_valid()) {
-      words += PSTRING() << " \"\a" << query.dialog_id.get() << "\"";
-    }
-
-    // index_mask kludge
-    if (query.filter != MessageSearchFilter::Empty) {
-      words += PSTRING() << " \"\a\a" << message_search_filter_index(query.filter) << "\"";
-    }
-
-    auto &stmt = get_messages_fts_stmt_;
-    stmt.bind_string(1, words).ensure();
-    if (query.from_search_id == 0) {
-      query.from_search_id = std::numeric_limits<int64>::max();
-    }
-    stmt.bind_int64(2, query.from_search_id).ensure();
-    stmt.bind_int32(3, query.limit).ensure();
-    MessageDbFtsResult result;
-    auto status = stmt.step();
-    if (status.is_error()) {
-      LOG(ERROR) << status;
-      return result;
-    }
-    while (stmt.has_row()) {
-      DialogId dialog_id(stmt.view_int64(0));
-      MessageId message_id(stmt.view_int64(1));
-      auto data_slice = stmt.view_blob(2);
-      auto search_id = stmt.view_int64(3);
-      result.next_search_id = search_id;
-      result.messages.push_back(MessageDbMessage{dialog_id, message_id, BufferSlice(data_slice)});
-      stmt.step().ensure();
-    }
-    return result;
-  }
-
-  vector<MessageDbDialogMessage> get_messages_from_index(DialogId dialog_id, MessageId from_message_id,
-                                                         MessageSearchFilter filter, int32 offset, int32 limit) {
-    auto &stmt = get_messages_from_index_stmts_[message_search_filter_index(filter)];
-    return get_messages_impl(stmt, dialog_id, from_message_id, offset, limit);
-  }
-
-  MessageDbCallsResult get_calls(MessageDbCallsQuery query) final {
-    int32 pos;
-    if (query.filter == MessageSearchFilter::Call) {
-      pos = 0;
-    } else if (query.filter == MessageSearchFilter::MissedCall) {
-      pos = 1;
-    } else {
-      UNREACHABLE();
-    }
-
-    auto &stmt = get_calls_stmts_[pos];
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-
-    stmt.bind_int32(1, query.from_unique_message_id).ensure();
-    stmt.bind_int32(2, query.limit).ensure();
-
-    MessageDbCallsResult result;
-    stmt.step().ensure();
-    while (stmt.has_row()) {
-      DialogId dialog_id(stmt.view_int64(0));
-      MessageId message_id(stmt.view_int64(1));
-      auto data_slice = stmt.view_blob(2);
-      result.messages.push_back(MessageDbMessage{dialog_id, message_id, BufferSlice(data_slice)});
-      stmt.step().ensure();
-    }
-    return result;
-  }
-
-  Status begin_write_transaction() final {
-    return db_.begin_write_transaction();
-  }
-  Status commit_transaction() final {
-    return db_.commit_transaction();
-  }
-
- private:
-  SqliteDb db_;
-
-  SqliteStatement add_message_stmt_;
-
-  SqliteStatement delete_message_stmt_;
-  SqliteStatement delete_all_dialog_messages_stmt_;
-  SqliteStatement delete_dialog_messages_by_sender_stmt_;
-
-  SqliteStatement get_message_stmt_;
-  SqliteStatement get_message_by_random_id_stmt_;
-  SqliteStatement get_message_by_unique_message_id_stmt_;
-  SqliteStatement get_expiring_messages_stmt_;
-
-  struct GetMessagesStmt {
-    SqliteStatement asc_stmt_;
-    SqliteStatement desc_stmt_;
-  };
-  GetMessagesStmt get_messages_stmt_;
-  SqliteStatement get_scheduled_messages_stmt_;
-  SqliteStatement get_messages_from_notification_id_stmt_;
-
-  std::array<SqliteStatement, MESSAGE_DB_INDEX_COUNT> get_message_ids_stmts_;
-  std::array<GetMessagesStmt, MESSAGE_DB_INDEX_COUNT> get_messages_from_index_stmts_;
-  std::array<SqliteStatement, 2> get_calls_stmts_;
-
-  SqliteStatement get_messages_fts_stmt_;
-
-  SqliteStatement add_scheduled_message_stmt_;
-  SqliteStatement get_scheduled_message_stmt_;
-  SqliteStatement get_scheduled_server_message_stmt_;
-  SqliteStatement delete_scheduled_message_stmt_;
-  SqliteStatement delete_scheduled_server_message_stmt_;
-
-  static vector<MessageDbDialogMessage> get_messages_impl(GetMessagesStmt &stmt, DialogId dialog_id,
-                                                          MessageId from_message_id, int32 offset, int32 limit) {
-    LOG_CHECK(dialog_id.is_valid()) << dialog_id;
-    CHECK(from_message_id.is_valid());
-
-    LOG(INFO) << "Loading messages in " << dialog_id << " from " << from_message_id << " with offset = " << offset
-              << " and limit = " << limit;
-
-    auto message_id = from_message_id.get();
-
-    if (message_id >= MessageId::max().get()) {
-      message_id--;
-    }
-
-    auto left_message_id = message_id;
-    auto left_cnt = limit + offset;
-
-    auto right_message_id = message_id - 1;
-    auto right_cnt = -offset;
-
-    vector<MessageDbDialogMessage> left;
-    vector<MessageDbDialogMessage> right;
-
-    if (left_cnt != 0) {
-      if (right_cnt == 1 && false) {
-        left_message_id++;
-        left_cnt++;
-      }
-
-      left = get_messages_inner(stmt.desc_stmt_, dialog_id, left_message_id, left_cnt);
-
-      if (right_cnt == 1 && !left.empty() && false /*get_message_id(left[0].as_slice()) == message_id*/) {
-        right_cnt = 0;
-      }
-    }
-    if (right_cnt != 0) {
-      right = get_messages_inner(stmt.asc_stmt_, dialog_id, right_message_id, right_cnt);
-      std::reverse(right.begin(), right.end());
-    }
-    if (left.empty()) {
-      return right;
-    }
-    if (right.empty()) {
-      return left;
-    }
-
-    right.reserve(right.size() + left.size());
-    std::move(left.begin(), left.end(), std::back_inserter(right));
-
-    return right;
-  }
-
-  static vector<MessageDbDialogMessage> get_messages_inner(SqliteStatement &stmt, DialogId dialog_id,
-                                                           int64 from_message_id, int32 limit) {
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-    stmt.bind_int64(1, dialog_id.get()).ensure();
-    stmt.bind_int64(2, from_message_id).ensure();
-    stmt.bind_int32(3, limit).ensure();
-
-    LOG(INFO) << "Begin to load " << limit << " messages in " << dialog_id << " from " << MessageId(from_message_id)
-              << " from database";
-    vector<MessageDbDialogMessage> result;
-    stmt.step().ensure();
-    while (stmt.has_row()) {
-      auto data_slice = stmt.view_blob(0);
-      MessageId message_id(stmt.view_int64(1));
-      result.push_back(MessageDbDialogMessage{message_id, BufferSlice(data_slice)});
-      LOG(INFO) << "Loaded " << message_id << " in " << dialog_id << " from database";
-      stmt.step().ensure();
-    }
-    return result;
-  }
-
-  static std::pair<MessageId, int32> get_message_info(const MessageDbDialogMessage &message, bool from_data = false) {
-    return get_message_info(message.message_id, message.data.as_slice(), from_data);
-  }
-
-  static std::pair<MessageId, int32> get_message_info(MessageId message_id, Slice data, bool from_data) {
-    LogEventParser message_date_parser(data);
-    int32 flags;
-    int32 flags2 = 0;
-    int32 flags3 = 0;
-    td::parse(flags, message_date_parser);
-    if ((flags & (1 << 29)) != 0) {
-      td::parse(flags2, message_date_parser);
-      if ((flags2 & (1 << 29)) != 0) {
-        td::parse(flags3, message_date_parser);
-      }
-    }
-    bool has_sender = (flags & (1 << 10)) != 0;
-    MessageId data_message_id;
-    td::parse(data_message_id, message_date_parser);
-    UserId sender_user_id;
-    if (has_sender) {
-      td::parse(sender_user_id, message_date_parser);
-    }
-    int32 date;
-    td::parse(date, message_date_parser);
-    LOG(INFO) << "Loaded " << message_id << "(aka " << data_message_id << ") sent at " << date << " by "
-              << sender_user_id;
-    return {from_data ? data_message_id : message_id, date};
-  }
-};
-
-std::shared_ptr<MessageDbSyncSafeInterface> create_message_db_sync(
-    std::shared_ptr<SqliteConnectionSafe> sqlite_connection) {
-  class MessageDbSyncSafe final : public MessageDbSyncSafeInterface {
-   public:
-    explicit MessageDbSyncSafe(std::shared_ptr<SqliteConnectionSafe> sqlite_connection)
-        : lsls_db_([safe_connection = std::move(sqlite_connection)] {
-          return make_unique<MessageDbImpl>(safe_connection->get().clone());
-        }) {
-    }
-    MessageDbSyncInterface &get() final {
-      return *lsls_db_.get();
-    }
-
-   private:
-    LazySchedulerLocalStorage<unique_ptr<MessageDbSyncInterface>> lsls_db_;
-  };
-  return std::make_shared<MessageDbSyncSafe>(std::move(sqlite_connection));
-}
-
-class MessageDbAsync final : public MessageDbAsyncInterface {
- public:
-  MessageDbAsync(std::shared_ptr<MessageDbSyncSafeInterface> sync_db, int32 scheduler_id) {
-    impl_ = create_actor_on_scheduler<Impl>("MessageDbActor", scheduler_id, std::move(sync_db));
-  }
-
-  void add_message(MessageFullId message_full_id, ServerMessageId unique_message_id, DialogId sender_dialog_id,
-                   int64 random_id, int32 ttl_expires_at, int32 index_mask, int64 search_id, string text,
-                   NotificationId notification_id, MessageId top_thread_message_id, BufferSlice data,
-                   Promise<> promise) final {
-    send_closure_later(impl_, &Impl::add_message, message_full_id, unique_message_id, sender_dialog_id, random_id,
-                       ttl_expires_at, index_mask, search_id, std::move(text), notification_id, top_thread_message_id,
-                       std::move(data), std::move(promise));
-  }
-  void add_scheduled_message(MessageFullId message_full_id, BufferSlice data, Promise<> promise) final {
-    send_closure_later(impl_, &Impl::add_scheduled_message, message_full_id, std::move(data), std::move(promise));
-  }
-
-  void delete_message(MessageFullId message_full_id, Promise<> promise) final {
-    send_closure_later(impl_, &Impl::delete_message, message_full_id, std::move(promise));
-  }
-  void delete_all_dialog_messages(DialogId dialog_id, MessageId from_message_id, Promise<> promise) final {
-    send_closure_later(impl_, &Impl::delete_all_dialog_messages, dialog_id, from_message_id, std::move(promise));
-  }
-  void delete_dialog_messages_by_sender(DialogId dialog_id, DialogId sender_dialog_id, Promise<> promise) final {
-    send_closure_later(impl_, &Impl::delete_dialog_messages_by_sender, dialog_id, sender_dialog_id, std::move(promise));
-  }
-
-  void get_message(MessageFullId message_full_id, Promise<MessageDbDialogMessage> promise) final {
-    send_closure_later(impl_, &Impl::get_message, message_full_id, std::move(promise));
-  }
-  void get_message_by_unique_message_id(ServerMessageId unique_message_id, Promise<MessageDbMessage> promise) final {
-    send_closure_later(impl_, &Impl::get_message_by_unique_message_id, unique_message_id, std::move(promise));
-  }
-  void get_message_by_random_id(DialogId dialog_id, int64 random_id, Promise<MessageDbDialogMessage> promise) final {
-    send_closure_later(impl_, &Impl::get_message_by_random_id, dialog_id, random_id, std::move(promise));
-  }
-  void get_dialog_message_by_date(DialogId dialog_id, MessageId first_message_id, MessageId last_message_id, int32 date,
-                                  Promise<MessageDbDialogMessage> promise) final {
-    send_closure_later(impl_, &Impl::get_dialog_message_by_date, dialog_id, first_message_id, last_message_id, date,
-                       std::move(promise));
-  }
-
-  void get_dialog_message_calendar(MessageDbDialogCalendarQuery query, Promise<MessageDbCalendar> promise) final {
-    send_closure_later(impl_, &Impl::get_dialog_message_calendar, std::move(query), std::move(promise));
-  }
-
-  void get_dialog_sparse_message_positions(MessageDbGetDialogSparseMessagePositionsQuery query,
-                                           Promise<MessageDbMessagePositions> promise) final {
-    send_closure_later(impl_, &Impl::get_dialog_sparse_message_positions, std::move(query), std::move(promise));
-  }
-
-  void get_messages(MessageDbMessagesQuery query, Promise<vector<MessageDbDialogMessage>> promise) final {
-    send_closure_later(impl_, &Impl::get_messages, std::move(query), std::move(promise));
-  }
-  void get_scheduled_messages(DialogId dialog_id, int32 limit, Promise<vector<MessageDbDialogMessage>> promise) final {
-    send_closure_later(impl_, &Impl::get_scheduled_messages, dialog_id, limit, std::move(promise));
-  }
-  void get_messages_from_notification_id(DialogId dialog_id, NotificationId from_notification_id, int32 limit,
-                                         Promise<vector<MessageDbDialogMessage>> promise) final {
-    send_closure_later(impl_, &Impl::get_messages_from_notification_id, dialog_id, from_notification_id, limit,
-                       std::move(promise));
-  }
-  void get_calls(MessageDbCallsQuery query, Promise<MessageDbCallsResult> promise) final {
-    send_closure_later(impl_, &Impl::get_calls, std::move(query), std::move(promise));
-  }
-  void get_messages_fts(MessageDbFtsQuery query, Promise<MessageDbFtsResult> promise) final {
-    send_closure_later(impl_, &Impl::get_messages_fts, std::move(query), std::move(promise));
-  }
-  void get_expiring_messages(int32 expires_till, int32 limit, Promise<vector<MessageDbMessage>> promise) final {
-    send_closure_later(impl_, &Impl::get_expiring_messages, expires_till, limit, std::move(promise));
-  }
-
-  void close(Promise<> promise) final {
-    send_closure_later(impl_, &Impl::close, std::move(promise));
-  }
-
-  void force_flush() final {
-    send_closure_later(impl_, &Impl::force_flush);
-  }
-
- private:
-  class Impl final : public Actor {
-   public:
-    explicit Impl(std::shared_ptr<MessageDbSyncSafeInterface> sync_db_safe) : sync_db_safe_(std::move(sync_db_safe)) {
-    }
-    void add_message(MessageFullId message_full_id, ServerMessageId unique_message_id, DialogId sender_dialog_id,
-                     int64 random_id, int32 ttl_expires_at, int32 index_mask, int64 search_id, string text,
-                     NotificationId notification_id, MessageId top_thread_message_id, BufferSlice data,
-                     Promise<> promise) {
-      add_write_query([this, message_full_id, unique_message_id, sender_dialog_id, random_id, ttl_expires_at,
-                       index_mask, search_id, text = std::move(text), notification_id, top_thread_message_id,
-                       data = std::move(data), promise = std::move(promise)](Unit) mutable {
-        sync_db_->add_message(message_full_id, unique_message_id, sender_dialog_id, random_id, ttl_expires_at,
-                              index_mask, search_id, std::move(text), notification_id, top_thread_message_id,
-                              std::move(data));
-        on_write_result(std::move(promise));
-      });
-    }
-    void add_scheduled_message(MessageFullId message_full_id, BufferSlice data, Promise<> promise) {
-      add_write_query([this, message_full_id, promise = std::move(promise), data = std::move(data)](Unit) mutable {
-        sync_db_->add_scheduled_message(message_full_id, std::move(data));
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void delete_message(MessageFullId message_full_id, Promise<> promise) {
-      add_write_query([this, message_full_id, promise = std::move(promise)](Unit) mutable {
-        sync_db_->delete_message(message_full_id);
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void on_write_result(Promise<Unit> &&promise) {
-      // We are inside a transaction and don't know how to handle errors
-      finished_writes_.push_back(std::move(promise));
-    }
-
-    void delete_all_dialog_messages(DialogId dialog_id, MessageId from_message_id, Promise<> promise) {
-      add_read_query();
-      sync_db_->delete_all_dialog_messages(dialog_id, from_message_id);
-      promise.set_value(Unit());
-    }
-
-    void delete_dialog_messages_by_sender(DialogId dialog_id, DialogId sender_dialog_id, Promise<> promise) {
-      add_read_query();
-      sync_db_->delete_dialog_messages_by_sender(dialog_id, sender_dialog_id);
-      promise.set_value(Unit());
-    }
-
-    void get_message(MessageFullId message_full_id, Promise<MessageDbDialogMessage> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_message(message_full_id));
-    }
-    void get_message_by_unique_message_id(ServerMessageId unique_message_id, Promise<MessageDbMessage> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_message_by_unique_message_id(unique_message_id));
-    }
-    void get_message_by_random_id(DialogId dialog_id, int64 random_id, Promise<MessageDbDialogMessage> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_message_by_random_id(dialog_id, random_id));
-    }
-    void get_dialog_message_by_date(DialogId dialog_id, MessageId first_message_id, MessageId last_message_id,
-                                    int32 date, Promise<MessageDbDialogMessage> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_dialog_message_by_date(dialog_id, first_message_id, last_message_id, date));
-    }
-
-    void get_dialog_message_calendar(MessageDbDialogCalendarQuery query, Promise<MessageDbCalendar> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_dialog_message_calendar(std::move(query)));
-    }
-
-    void get_dialog_sparse_message_positions(MessageDbGetDialogSparseMessagePositionsQuery query,
-                                             Promise<MessageDbMessagePositions> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_dialog_sparse_message_positions(std::move(query)));
-    }
-
-    void get_messages(MessageDbMessagesQuery query, Promise<vector<MessageDbDialogMessage>> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_messages(std::move(query)));
-    }
-    void get_scheduled_messages(DialogId dialog_id, int32 limit, Promise<vector<MessageDbDialogMessage>> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_scheduled_messages(dialog_id, limit));
-    }
-    void get_messages_from_notification_id(DialogId dialog_id, NotificationId from_notification_id, int32 limit,
-                                           Promise<vector<MessageDbDialogMessage>> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_messages_from_notification_id(dialog_id, from_notification_id, limit));
-    }
-    void get_calls(MessageDbCallsQuery query, Promise<MessageDbCallsResult> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_calls(std::move(query)));
-    }
-    void get_messages_fts(MessageDbFtsQuery query, Promise<MessageDbFtsResult> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_messages_fts(std::move(query)));
-    }
-    void get_expiring_messages(int32 expires_till, int32 limit, Promise<vector<MessageDbMessage>> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_expiring_messages(expires_till, limit));
-    }
-
-    void close(Promise<> promise) {
-      do_flush();
-      sync_db_safe_.reset();
-      sync_db_ = nullptr;
-      promise.set_value(Unit());
-      stop();
-    }
-
-    void force_flush() {
-      do_flush();
-      LOG(INFO) << "MessageDb flushed";
-    }
-
-   private:
-    std::shared_ptr<MessageDbSyncSafeInterface> sync_db_safe_;
-    MessageDbSyncInterface *sync_db_ = nullptr;
-
-    static constexpr size_t MAX_PENDING_QUERIES_COUNT{50};
-    static constexpr double MAX_PENDING_QUERIES_DELAY{0.01};
-
-    //NB: order is important, destructor of pending_writes_ will change finished_writes_
-    vector<Promise<Unit>> finished_writes_;
-    vector<Promise<Unit>> pending_writes_;  // TODO use Action
-    double wakeup_at_ = 0;
-
-    template <class F>
-    void add_write_query(F &&f) {
-      pending_writes_.push_back(PromiseCreator::lambda(std::forward<F>(f)));
-      if (pending_writes_.size() > MAX_PENDING_QUERIES_COUNT) {
-        do_flush();
-        wakeup_at_ = 0;
-      } else if (wakeup_at_ == 0) {
-        wakeup_at_ = Time::now_cached() + MAX_PENDING_QUERIES_DELAY;
-      }
-      if (wakeup_at_ != 0) {
-        set_timeout_at(wakeup_at_);
-      }
-    }
-    void add_read_query() {
-      do_flush();
-    }
-    void do_flush() {
-      if (pending_writes_.empty()) {
-        return;
-      }
-      sync_db_->begin_write_transaction().ensure();
-      set_promises(pending_writes_);
-      sync_db_->commit_transaction().ensure();
-      set_promises(finished_writes_);
-      cancel_timeout();
-    }
-    void timeout_expired() final {
-      do_flush();
-    }
-
-    void start_up() final {
-      sync_db_ = &sync_db_safe_->get();
-    }
-  };
-  ActorOwn<Impl> impl_;
-};
-
-std::shared_ptr<MessageDbAsyncInterface> create_message_db_async(std::shared_ptr<MessageDbSyncSafeInterface> sync_db,
-                                                                 int32 scheduler_id) {
-  return std::make_shared<MessageDbAsync>(std::move(sync_db), scheduler_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageDb.h b/third-party/td/td/td/telegram/MessageDb.h
deleted file mode 100644
index c6f6424ce5..0000000000
--- a/third-party/td/td/td/telegram/MessageDb.h
+++ /dev/null
@@ -1,205 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageSearchFilter.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/ServerMessageId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class SqliteConnectionSafe;
-class SqliteDb;
-
-struct MessageDbMessagesQuery {
-  DialogId dialog_id;
-  MessageSearchFilter filter{MessageSearchFilter::Empty};
-  MessageId from_message_id;
-  int32 offset{0};
-  int32 limit{100};
-};
-
-struct MessageDbDialogMessage {
-  MessageId message_id;
-  BufferSlice data;
-};
-
-struct MessageDbMessage {
-  DialogId dialog_id;
-  MessageId message_id;
-  BufferSlice data;
-};
-
-struct MessageDbDialogCalendarQuery {
-  DialogId dialog_id;
-  MessageSearchFilter filter{MessageSearchFilter::Empty};
-  MessageId from_message_id;
-  int32 tz_offset{0};
-};
-
-struct MessageDbCalendar {
-  vector<MessageDbDialogMessage> messages;
-  vector<int32> total_counts;
-};
-
-struct MessageDbGetDialogSparseMessagePositionsQuery {
-  DialogId dialog_id;
-  MessageSearchFilter filter{MessageSearchFilter::Empty};
-  MessageId from_message_id;
-  int32 limit{0};
-};
-
-struct MessageDbMessagePosition {
-  int32 position;
-  int32 date;
-  MessageId message_id;
-};
-
-struct MessageDbMessagePositions {
-  int32 total_count{0};
-  vector<MessageDbMessagePosition> positions;
-};
-
-struct MessageDbFtsQuery {
-  string query;
-  DialogId dialog_id;
-  MessageSearchFilter filter{MessageSearchFilter::Empty};
-  int64 from_search_id{0};
-  int32 limit{100};
-};
-struct MessageDbFtsResult {
-  vector<MessageDbMessage> messages;
-  int64 next_search_id{1};
-};
-
-struct MessageDbCallsQuery {
-  MessageSearchFilter filter{MessageSearchFilter::Empty};
-  int32 from_unique_message_id{0};
-  int32 limit{100};
-};
-
-struct MessageDbCallsResult {
-  vector<MessageDbMessage> messages;
-};
-
-class MessageDbSyncInterface {
- public:
-  MessageDbSyncInterface() = default;
-  MessageDbSyncInterface(const MessageDbSyncInterface &) = delete;
-  MessageDbSyncInterface &operator=(const MessageDbSyncInterface &) = delete;
-  virtual ~MessageDbSyncInterface() = default;
-
-  virtual void add_message(MessageFullId message_full_id, ServerMessageId unique_message_id, DialogId sender_dialog_id,
-                           int64 random_id, int32 ttl_expires_at, int32 index_mask, int64 search_id, string text,
-                           NotificationId notification_id, MessageId top_thread_message_id, BufferSlice data) = 0;
-  virtual void add_scheduled_message(MessageFullId message_full_id, BufferSlice data) = 0;
-
-  virtual void delete_message(MessageFullId message_full_id) = 0;
-  virtual void delete_all_dialog_messages(DialogId dialog_id, MessageId from_message_id) = 0;
-  virtual void delete_dialog_messages_by_sender(DialogId dialog_id, DialogId sender_dialog_id) = 0;
-
-  virtual Result<MessageDbDialogMessage> get_message(MessageFullId message_full_id) = 0;
-  virtual Result<MessageDbMessage> get_message_by_unique_message_id(ServerMessageId unique_message_id) = 0;
-  virtual Result<MessageDbDialogMessage> get_message_by_random_id(DialogId dialog_id, int64 random_id) = 0;
-  virtual Result<MessageDbDialogMessage> get_dialog_message_by_date(DialogId dialog_id, MessageId first_message_id,
-                                                                    MessageId last_message_id, int32 date) = 0;
-
-  virtual MessageDbCalendar get_dialog_message_calendar(MessageDbDialogCalendarQuery query) = 0;
-
-  virtual Result<MessageDbMessagePositions> get_dialog_sparse_message_positions(
-      MessageDbGetDialogSparseMessagePositionsQuery query) = 0;
-
-  virtual vector<MessageDbDialogMessage> get_messages(MessageDbMessagesQuery query) = 0;
-  virtual vector<MessageDbDialogMessage> get_scheduled_messages(DialogId dialog_id, int32 limit) = 0;
-  virtual vector<MessageDbDialogMessage> get_messages_from_notification_id(DialogId dialog_id,
-                                                                           NotificationId from_notification_id,
-                                                                           int32 limit) = 0;
-
-  virtual vector<MessageDbMessage> get_expiring_messages(int32 expires_till, int32 limit) = 0;
-  virtual MessageDbCallsResult get_calls(MessageDbCallsQuery query) = 0;
-  virtual MessageDbFtsResult get_messages_fts(MessageDbFtsQuery query) = 0;
-
-  virtual Status begin_write_transaction() = 0;
-  virtual Status commit_transaction() = 0;
-};
-
-class MessageDbSyncSafeInterface {
- public:
-  MessageDbSyncSafeInterface() = default;
-  MessageDbSyncSafeInterface(const MessageDbSyncSafeInterface &) = delete;
-  MessageDbSyncSafeInterface &operator=(const MessageDbSyncSafeInterface &) = delete;
-  virtual ~MessageDbSyncSafeInterface() = default;
-
-  virtual MessageDbSyncInterface &get() = 0;
-};
-
-class MessageDbAsyncInterface {
- public:
-  MessageDbAsyncInterface() = default;
-  MessageDbAsyncInterface(const MessageDbAsyncInterface &) = delete;
-  MessageDbAsyncInterface &operator=(const MessageDbAsyncInterface &) = delete;
-  virtual ~MessageDbAsyncInterface() = default;
-
-  virtual void add_message(MessageFullId message_full_id, ServerMessageId unique_message_id, DialogId sender_dialog_id,
-                           int64 random_id, int32 ttl_expires_at, int32 index_mask, int64 search_id, string text,
-                           NotificationId notification_id, MessageId top_thread_message_id, BufferSlice data,
-                           Promise<> promise) = 0;
-  virtual void add_scheduled_message(MessageFullId message_full_id, BufferSlice data, Promise<> promise) = 0;
-
-  virtual void delete_message(MessageFullId message_full_id, Promise<> promise) = 0;
-  virtual void delete_all_dialog_messages(DialogId dialog_id, MessageId from_message_id, Promise<> promise) = 0;
-  virtual void delete_dialog_messages_by_sender(DialogId dialog_id, DialogId sender_dialog_id, Promise<> promise) = 0;
-
-  virtual void get_message(MessageFullId message_full_id, Promise<MessageDbDialogMessage> promise) = 0;
-  virtual void get_message_by_unique_message_id(ServerMessageId unique_message_id,
-                                                Promise<MessageDbMessage> promise) = 0;
-  virtual void get_message_by_random_id(DialogId dialog_id, int64 random_id,
-                                        Promise<MessageDbDialogMessage> promise) = 0;
-  virtual void get_dialog_message_by_date(DialogId dialog_id, MessageId first_message_id, MessageId last_message_id,
-                                          int32 date, Promise<MessageDbDialogMessage> promise) = 0;
-
-  virtual void get_dialog_message_calendar(MessageDbDialogCalendarQuery query, Promise<MessageDbCalendar> promise) = 0;
-
-  virtual void get_dialog_sparse_message_positions(MessageDbGetDialogSparseMessagePositionsQuery query,
-                                                   Promise<MessageDbMessagePositions> promise) = 0;
-
-  virtual void get_messages(MessageDbMessagesQuery query, Promise<vector<MessageDbDialogMessage>> promise) = 0;
-  virtual void get_scheduled_messages(DialogId dialog_id, int32 limit,
-                                      Promise<vector<MessageDbDialogMessage>> promise) = 0;
-  virtual void get_messages_from_notification_id(DialogId dialog_id, NotificationId from_notification_id, int32 limit,
-                                                 Promise<vector<MessageDbDialogMessage>> promise) = 0;
-
-  virtual void get_calls(MessageDbCallsQuery, Promise<MessageDbCallsResult> promise) = 0;
-  virtual void get_messages_fts(MessageDbFtsQuery query, Promise<MessageDbFtsResult> promise) = 0;
-
-  virtual void get_expiring_messages(int32 expires_till, int32 limit, Promise<vector<MessageDbMessage>> promise) = 0;
-
-  virtual void close(Promise<> promise) = 0;
-  virtual void force_flush() = 0;
-};
-
-Status init_message_db(SqliteDb &db, int version) TD_WARN_UNUSED_RESULT;
-Status drop_message_db(SqliteDb &db, int version) TD_WARN_UNUSED_RESULT;
-
-std::shared_ptr<MessageDbSyncSafeInterface> create_message_db_sync(
-    std::shared_ptr<SqliteConnectionSafe> sqlite_connection);
-
-std::shared_ptr<MessageDbAsyncInterface> create_message_db_async(std::shared_ptr<MessageDbSyncSafeInterface> sync_db,
-                                                                 int32 scheduler_id = -1);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageEffectId.h b/third-party/td/td/td/telegram/MessageEffectId.h
deleted file mode 100644
index 9aa7e9e706..0000000000
--- a/third-party/td/td/td/telegram/MessageEffectId.h
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class MessageEffectId {
-  int64 id = 0;
-
- public:
-  MessageEffectId() = default;
-
-  explicit constexpr MessageEffectId(int64 message_effect_id) : id(message_effect_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  MessageEffectId(T message_effect_id) = delete;
-
-  bool is_valid() const {
-    return id != 0;
-  }
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const MessageEffectId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const MessageEffectId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_long();
-  }
-};
-
-struct MessageEffectIdHash {
-  uint32 operator()(MessageEffectId message_effect_id) const {
-    return Hash<int64>()(message_effect_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, MessageEffectId message_effect_id) {
-  return string_builder << "message effect " << message_effect_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageEntity.cpp b/third-party/td/td/td/telegram/MessageEntity.cpp
deleted file mode 100644
index d19ef204a2..0000000000
--- a/third-party/td/td/td/telegram/MessageEntity.cpp
+++ /dev/null
@@ -1,4799 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageEntity.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/SecretChatLayer.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Promise.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/unicode.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <cstring>
-#include <limits>
-#include <tuple>
-
-namespace td {
-
-int MessageEntity::get_type_priority(Type type) {
-  static const int priorities[] = {50 /*Mention*/,
-                                   50 /*Hashtag*/,
-                                   50 /*BotCommand*/,
-                                   50 /*Url*/,
-                                   50 /*EmailAddress*/,
-                                   90 /*Bold*/,
-                                   91 /*Italic*/,
-                                   20 /*Code*/,
-                                   11 /*Pre*/,
-                                   10 /*PreCode*/,
-                                   49 /*TextUrl*/,
-                                   49 /*MentionName*/,
-                                   50 /*Cashtag*/,
-                                   50 /*PhoneNumber*/,
-                                   92 /*Underline*/,
-                                   93 /*Strikethrough*/,
-                                   0 /*BlockQuote*/,
-                                   50 /*BankCardNumber*/,
-                                   50 /*MediaTimestamp*/,
-                                   94 /*Spoiler*/,
-                                   99 /*CustomEmoji*/,
-                                   0 /*ExpandableBlockQuote*/};
-  static_assert(sizeof(priorities) / sizeof(priorities[0]) == static_cast<size_t>(MessageEntity::Type::Size), "");
-  return priorities[static_cast<int32>(type)];
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageEntity::Type &message_entity_type) {
-  switch (message_entity_type) {
-    case MessageEntity::Type::Mention:
-      return string_builder << "Mention";
-    case MessageEntity::Type::Hashtag:
-      return string_builder << "Hashtag";
-    case MessageEntity::Type::BotCommand:
-      return string_builder << "BotCommand";
-    case MessageEntity::Type::Url:
-      return string_builder << "Url";
-    case MessageEntity::Type::EmailAddress:
-      return string_builder << "EmailAddress";
-    case MessageEntity::Type::Bold:
-      return string_builder << "Bold";
-    case MessageEntity::Type::Italic:
-      return string_builder << "Italic";
-    case MessageEntity::Type::Underline:
-      return string_builder << "Underline";
-    case MessageEntity::Type::Strikethrough:
-      return string_builder << "Strikethrough";
-    case MessageEntity::Type::BlockQuote:
-      return string_builder << "BlockQuote";
-    case MessageEntity::Type::Code:
-      return string_builder << "Code";
-    case MessageEntity::Type::Pre:
-      return string_builder << "Pre";
-    case MessageEntity::Type::PreCode:
-      return string_builder << "PreCode";
-    case MessageEntity::Type::TextUrl:
-      return string_builder << "TextUrl";
-    case MessageEntity::Type::MentionName:
-      return string_builder << "MentionName";
-    case MessageEntity::Type::Cashtag:
-      return string_builder << "Cashtag";
-    case MessageEntity::Type::PhoneNumber:
-      return string_builder << "PhoneNumber";
-    case MessageEntity::Type::BankCardNumber:
-      return string_builder << "BankCardNumber";
-    case MessageEntity::Type::MediaTimestamp:
-      return string_builder << "MediaTimestamp";
-    case MessageEntity::Type::Spoiler:
-      return string_builder << "Spoiler";
-    case MessageEntity::Type::CustomEmoji:
-      return string_builder << "CustomEmoji";
-    case MessageEntity::Type::ExpandableBlockQuote:
-      return string_builder << "ExpandableBlockQuote";
-    default:
-      UNREACHABLE();
-      return string_builder << "Impossible";
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageEntity &message_entity) {
-  string_builder << '[' << message_entity.type << ", offset = " << message_entity.offset
-                 << ", length = " << message_entity.length;
-  if (message_entity.media_timestamp >= 0) {
-    string_builder << ", media_timestamp = \"" << message_entity.media_timestamp << "\"";
-  }
-  if (!message_entity.argument.empty()) {
-    string_builder << ", argument = \"" << message_entity.argument << "\"";
-  }
-  if (message_entity.user_id.is_valid()) {
-    string_builder << ", " << message_entity.user_id;
-  }
-  if (message_entity.custom_emoji_id.is_valid()) {
-    string_builder << ", " << message_entity.custom_emoji_id;
-  }
-  string_builder << ']';
-  return string_builder;
-}
-
-tl_object_ptr<td_api::TextEntityType> MessageEntity::get_text_entity_type_object(
-    const UserManager *user_manager) const {
-  switch (type) {
-    case MessageEntity::Type::Mention:
-      return make_tl_object<td_api::textEntityTypeMention>();
-    case MessageEntity::Type::Hashtag:
-      return make_tl_object<td_api::textEntityTypeHashtag>();
-    case MessageEntity::Type::BotCommand:
-      return make_tl_object<td_api::textEntityTypeBotCommand>();
-    case MessageEntity::Type::Url:
-      return make_tl_object<td_api::textEntityTypeUrl>();
-    case MessageEntity::Type::EmailAddress:
-      return make_tl_object<td_api::textEntityTypeEmailAddress>();
-    case MessageEntity::Type::Bold:
-      return make_tl_object<td_api::textEntityTypeBold>();
-    case MessageEntity::Type::Italic:
-      return make_tl_object<td_api::textEntityTypeItalic>();
-    case MessageEntity::Type::Underline:
-      return make_tl_object<td_api::textEntityTypeUnderline>();
-    case MessageEntity::Type::Strikethrough:
-      return make_tl_object<td_api::textEntityTypeStrikethrough>();
-    case MessageEntity::Type::BlockQuote:
-      return make_tl_object<td_api::textEntityTypeBlockQuote>();
-    case MessageEntity::Type::Code:
-      return make_tl_object<td_api::textEntityTypeCode>();
-    case MessageEntity::Type::Pre:
-      return make_tl_object<td_api::textEntityTypePre>();
-    case MessageEntity::Type::PreCode:
-      return make_tl_object<td_api::textEntityTypePreCode>(argument);
-    case MessageEntity::Type::TextUrl:
-      return make_tl_object<td_api::textEntityTypeTextUrl>(argument);
-    case MessageEntity::Type::MentionName:
-      return make_tl_object<td_api::textEntityTypeMentionName>(
-          user_manager == nullptr ? user_id.get()
-                                  : user_manager->get_user_id_object(user_id, "textEntityTypeMentionName"));
-    case MessageEntity::Type::Cashtag:
-      return make_tl_object<td_api::textEntityTypeCashtag>();
-    case MessageEntity::Type::PhoneNumber:
-      return make_tl_object<td_api::textEntityTypePhoneNumber>();
-    case MessageEntity::Type::BankCardNumber:
-      return make_tl_object<td_api::textEntityTypeBankCardNumber>();
-    case MessageEntity::Type::MediaTimestamp:
-      return make_tl_object<td_api::textEntityTypeMediaTimestamp>(media_timestamp);
-    case MessageEntity::Type::Spoiler:
-      return make_tl_object<td_api::textEntityTypeSpoiler>();
-    case MessageEntity::Type::CustomEmoji:
-      return make_tl_object<td_api::textEntityTypeCustomEmoji>(custom_emoji_id.get());
-    case MessageEntity::Type::ExpandableBlockQuote:
-      return make_tl_object<td_api::textEntityTypeExpandableBlockQuote>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-tl_object_ptr<td_api::textEntity> MessageEntity::get_text_entity_object(const UserManager *user_manager) const {
-  return make_tl_object<td_api::textEntity>(offset, length, get_text_entity_type_object(user_manager));
-}
-
-vector<tl_object_ptr<td_api::textEntity>> get_text_entities_object(const UserManager *user_manager,
-                                                                   const vector<MessageEntity> &entities,
-                                                                   bool skip_bot_commands, int32 max_media_timestamp) {
-  vector<tl_object_ptr<td_api::textEntity>> result;
-  result.reserve(entities.size());
-
-  for (auto &entity : entities) {
-    if (skip_bot_commands && entity.type == MessageEntity::Type::BotCommand) {
-      continue;
-    }
-    if (entity.type == MessageEntity::Type::MediaTimestamp && max_media_timestamp < entity.media_timestamp) {
-      continue;
-    }
-    auto entity_object = entity.get_text_entity_object(user_manager);
-    if (entity_object->type_ != nullptr) {
-      result.push_back(std::move(entity_object));
-    }
-  }
-
-  return result;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const FormattedText &text) {
-  return string_builder << '"' << text.text << "\" with entities " << text.entities;
-}
-
-td_api::object_ptr<td_api::formattedText> get_formatted_text_object(const UserManager *user_manager,
-                                                                    const FormattedText &text, bool skip_bot_commands,
-                                                                    int32 max_media_timestamp) {
-  return td_api::make_object<td_api::formattedText>(
-      text.text, get_text_entities_object(user_manager, text.entities, skip_bot_commands, max_media_timestamp));
-}
-
-static bool is_word_character(uint32 code) {
-  switch (get_unicode_simple_category(code)) {
-    case UnicodeSimpleCategory::Letter:
-    case UnicodeSimpleCategory::DecimalNumber:
-    case UnicodeSimpleCategory::Number:
-      return true;
-    default:
-      return code == '_';
-  }
-}
-
-/*
-static bool is_word_boundary(uint32 a, uint32 b) {
-  return is_word_character(a) ^ is_word_character(b);
-}
-*/
-
-static bool is_alpha_digit(uint32 code) {
-  return ('0' <= code && code <= '9') || ('a' <= code && code <= 'z') || ('A' <= code && code <= 'Z');
-}
-
-static bool is_alpha_digit_or_underscore(uint32 code) {
-  return is_alpha_digit(code) || code == '_';
-}
-
-static bool is_alpha_digit_or_underscore_or_minus(uint32 code) {
-  return is_alpha_digit_or_underscore(code) || code == '-';
-}
-
-// This functions just implements corresponding regexps
-// All other fixes will be in other functions
-static vector<Slice> match_mentions(Slice str) {
-  vector<Slice> result;
-  const unsigned char *begin = str.ubegin();
-  const unsigned char *end = str.uend();
-  const unsigned char *ptr = begin;
-
-  // '/(?<=\B)@([a-zA-Z0-9_]{2,32})(?=\b)/u'
-
-  while (true) {
-    ptr = static_cast<const unsigned char *>(std::memchr(ptr, '@', narrow_cast<int32>(end - ptr)));
-    if (ptr == nullptr) {
-      break;
-    }
-
-    if (ptr != begin) {
-      uint32 prev;
-      next_utf8_unsafe(prev_utf8_unsafe(ptr), &prev);
-
-      if (is_word_character(prev)) {
-        ptr++;
-        continue;
-      }
-    }
-    auto mention_begin = ++ptr;
-    while (ptr != end && is_alpha_digit_or_underscore(*ptr)) {
-      ptr++;
-    }
-    auto mention_end = ptr;
-    auto mention_size = mention_end - mention_begin;
-    if (mention_size < 2 || mention_size > 32) {
-      continue;
-    }
-    uint32 next = 0;
-    if (ptr != end) {
-      next_utf8_unsafe(ptr, &next);
-    }
-    if (is_word_character(next)) {
-      continue;
-    }
-    result.emplace_back(mention_begin - 1, mention_end);
-  }
-  return result;
-}
-
-static vector<Slice> match_bot_commands(Slice str) {
-  vector<Slice> result;
-  const unsigned char *begin = str.ubegin();
-  const unsigned char *end = str.uend();
-  const unsigned char *ptr = begin;
-
-  // '/(?<!\b|[\/<>])\/([a-zA-Z0-9_]{1,64})(?:@([a-zA-Z0-9_]{3,32}))?(?!\B|[\/<>])/u'
-
-  while (true) {
-    ptr = static_cast<const unsigned char *>(std::memchr(ptr, '/', narrow_cast<int32>(end - ptr)));
-    if (ptr == nullptr) {
-      break;
-    }
-
-    if (ptr != begin) {
-      uint32 prev;
-      next_utf8_unsafe(prev_utf8_unsafe(ptr), &prev);
-
-      if (is_word_character(prev) || prev == '/' || prev == '<' || prev == '>') {
-        ptr++;
-        continue;
-      }
-    }
-
-    auto command_begin = ++ptr;
-    while (ptr != end && is_alpha_digit_or_underscore(*ptr)) {
-      ptr++;
-    }
-    auto command_end = ptr;
-    auto command_size = command_end - command_begin;
-    if (command_size < 1 || command_size > 64) {
-      continue;
-    }
-
-    if (ptr != end && *ptr == '@') {
-      auto mention_begin = ++ptr;
-      while (ptr != end && is_alpha_digit_or_underscore(*ptr)) {
-        ptr++;
-      }
-      auto mention_end = ptr;
-      auto mention_size = mention_end - mention_begin;
-      if (mention_size < 3 || mention_size > 32) {
-        continue;
-      }
-      command_end = ptr;
-    }
-
-    uint32 next = 0;
-    if (ptr != end) {
-      next_utf8_unsafe(ptr, &next);
-    }
-    if (is_word_character(next) || next == '/' || next == '<' || next == '>') {
-      continue;
-    }
-    result.emplace_back(command_begin - 1, command_end);
-  }
-  return result;
-}
-
-static bool is_hashtag_letter(uint32 c, UnicodeSimpleCategory &category) {
-  category = get_unicode_simple_category(c);
-  if (c == '_' || c == 0x200c || c == 0xb7 || (0xd80 <= c && c <= 0xdff)) {
-    return true;
-  }
-  switch (category) {
-    case UnicodeSimpleCategory::DecimalNumber:
-    case UnicodeSimpleCategory::Letter:
-      return true;
-    default:
-      return false;
-  }
-}
-
-static vector<Slice> match_hashtags(Slice str) {
-  vector<Slice> result;
-  const unsigned char *begin = str.ubegin();
-  const unsigned char *end = str.uend();
-  const unsigned char *ptr = begin;
-
-  // '/(?<=^|[^is_hashtag_letter])#([is_hashtag_letter]{1,256})(?:@([a-zA-Z0-9_]{3,32}))?(?![is_hashtag_letter]*#)/u'
-  // and at least one letter
-
-  UnicodeSimpleCategory category;
-
-  while (true) {
-    ptr = static_cast<const unsigned char *>(std::memchr(ptr, '#', narrow_cast<int32>(end - ptr)));
-    if (ptr == nullptr) {
-      break;
-    }
-
-    if (ptr != begin) {
-      uint32 prev;
-      next_utf8_unsafe(prev_utf8_unsafe(ptr), &prev);
-
-      if (is_hashtag_letter(prev, category)) {
-        ptr++;
-        continue;
-      }
-    }
-    auto hashtag_begin = ++ptr;
-    size_t hashtag_size = 0;
-    const unsigned char *hashtag_end = nullptr;
-    bool was_letter = false;
-    while (ptr != end) {
-      uint32 code;
-      auto next_ptr = next_utf8_unsafe(ptr, &code);
-      if (!is_hashtag_letter(code, category)) {
-        break;
-      }
-      ptr = next_ptr;
-
-      if (hashtag_size == 255) {
-        hashtag_end = ptr;
-      }
-      if (hashtag_size != 256) {
-        was_letter |= category == UnicodeSimpleCategory::Letter;
-        hashtag_size++;
-      }
-    }
-    if (!hashtag_end) {
-      hashtag_end = ptr;
-    }
-    if (hashtag_size < 1) {
-      continue;
-    }
-    if (hashtag_end == ptr && ptr != end && ptr[0] == '@') {
-      auto username_end = ptr + 1;
-      while (username_end != end && username_end - ptr < 33 && is_alpha_digit_or_underscore(*username_end)) {
-        username_end++;
-      }
-      auto length = username_end - ptr - 1;
-      if (length >= 3) {
-        ptr = username_end;
-        hashtag_end = username_end;
-      }
-    }
-    if (ptr != end && ptr[0] == '#') {
-      continue;
-    }
-    if (!was_letter) {
-      continue;
-    }
-    result.emplace_back(hashtag_begin - 1, hashtag_end);
-  }
-  return result;
-}
-
-static vector<Slice> match_cashtags(Slice str) {
-  vector<Slice> result;
-  const unsigned char *begin = str.ubegin();
-  const unsigned char *end = str.uend();
-  const unsigned char *ptr = begin;
-
-  // '/(?<=^|[^$is_hashtag_letter])\$(1INCH|[A-Z]{1,8})(?:@([a-zA-Z0-9_]{3,32}))?(?![$is_hashtag_letter])/u'
-
-  UnicodeSimpleCategory category;
-  while (true) {
-    ptr = static_cast<const unsigned char *>(std::memchr(ptr, '$', narrow_cast<int32>(end - ptr)));
-    if (ptr == nullptr) {
-      break;
-    }
-
-    if (ptr != begin) {
-      uint32 prev;
-      next_utf8_unsafe(prev_utf8_unsafe(ptr), &prev);
-
-      if (is_hashtag_letter(prev, category) || prev == '$') {
-        ptr++;
-        continue;
-      }
-    }
-
-    auto cashtag_begin = ++ptr;
-    if (end - ptr >= 5 && Slice(ptr, ptr + 5) == Slice("1INCH")) {
-      ptr += 5;
-    } else {
-      while (ptr != end && 'Z' >= *ptr && *ptr >= 'A') {
-        ptr++;
-      }
-    }
-    auto cashtag_end = ptr;
-    auto cashtag_size = cashtag_end - cashtag_begin;
-    if (cashtag_size < 1 || cashtag_size > 8) {
-      continue;
-    }
-    if (ptr != end && ptr[0] == '@') {
-      auto username_end = ptr + 1;
-      while (username_end != end && is_alpha_digit_or_underscore(*username_end)) {
-        username_end++;
-      }
-      auto length = username_end - ptr - 1;
-      if (length >= 3 && length <= 32) {
-        cashtag_end = username_end;
-        ptr = username_end;
-      }
-    }
-    if (cashtag_end != end) {
-      uint32 code;
-      next_utf8_unsafe(ptr, &code);
-      if (is_hashtag_letter(code, category) || code == '$') {
-        continue;
-      }
-    }
-
-    result.emplace_back(cashtag_begin - 1, cashtag_end);
-  }
-  return result;
-}
-
-static vector<Slice> match_media_timestamps(Slice str) {
-  vector<Slice> result;
-  const unsigned char *begin = str.ubegin();
-  const unsigned char *end = str.uend();
-  const unsigned char *ptr = begin;
-
-  while (true) {
-    ptr = static_cast<const unsigned char *>(std::memchr(ptr, ':', narrow_cast<int32>(end - ptr)));
-    if (ptr == nullptr) {
-      break;
-    }
-
-    auto media_timestamp_begin = ptr;
-    while (media_timestamp_begin != begin &&
-           (media_timestamp_begin[-1] == ':' || is_digit(media_timestamp_begin[-1]))) {
-      media_timestamp_begin--;
-    }
-    auto media_timestamp_end = ptr;
-    while (media_timestamp_end + 1 != end && (media_timestamp_end[1] == ':' || is_digit(media_timestamp_end[1]))) {
-      media_timestamp_end++;
-    }
-    media_timestamp_end++;
-
-    if (media_timestamp_begin != ptr && media_timestamp_end != ptr + 1 && is_digit(ptr[1])) {
-      ptr = media_timestamp_end;
-
-      if (media_timestamp_begin != begin) {
-        uint32 prev;
-        next_utf8_unsafe(prev_utf8_unsafe(media_timestamp_begin), &prev);
-
-        if (is_word_character(prev)) {
-          continue;
-        }
-      }
-      if (media_timestamp_end != end) {
-        uint32 next;
-        next_utf8_unsafe(media_timestamp_end, &next);
-
-        if (is_word_character(next)) {
-          continue;
-        }
-      }
-
-      result.emplace_back(media_timestamp_begin, media_timestamp_end);
-    } else {
-      ptr = media_timestamp_end;
-    }
-  }
-  return result;
-}
-
-static vector<Slice> match_bank_card_numbers(Slice str) {
-  vector<Slice> result;
-  const unsigned char *begin = str.ubegin();
-  const unsigned char *end = str.uend();
-  const unsigned char *ptr = begin;
-
-  // '/(?<=^|[^+_\pL\d-.,])[\d -]{13,}([^_\pL\d-]|$)/'
-
-  while (true) {
-    while (ptr != end && !is_digit(*ptr)) {
-      ptr++;
-    }
-    if (ptr == end) {
-      break;
-    }
-    if (ptr != begin) {
-      uint32 prev;
-      next_utf8_unsafe(prev_utf8_unsafe(ptr), &prev);
-
-      if (prev == '.' || prev == ',' || prev == '+' || prev == '-' || prev == '_' ||
-          get_unicode_simple_category(prev) == UnicodeSimpleCategory::Letter) {
-        while (ptr != end && (is_digit(*ptr) || *ptr == ' ' || *ptr == '-')) {
-          ptr++;
-        }
-        continue;
-      }
-    }
-
-    auto card_number_begin = ptr;
-    size_t digit_count = 0;
-    while (ptr != end && (is_digit(*ptr) || *ptr == ' ' || *ptr == '-')) {
-      if (*ptr == ' ' && digit_count >= 16 && digit_count <= 19 &&
-          digit_count == static_cast<size_t>(ptr - card_number_begin)) {
-        // continuous card number
-        break;
-      }
-      digit_count += static_cast<size_t>(is_digit(*ptr));
-      ptr++;
-    }
-    if (digit_count < 13 || digit_count > 19) {
-      continue;
-    }
-
-    auto card_number_end = ptr;
-    while (!is_digit(card_number_end[-1])) {
-      card_number_end--;
-    }
-    auto card_number_size = static_cast<size_t>(card_number_end - card_number_begin);
-    if (card_number_size > 2 * digit_count - 1) {
-      continue;
-    }
-    if (card_number_end != end) {
-      uint32 next;
-      next_utf8_unsafe(card_number_end, &next);
-      if (next == '-' || next == '_' || get_unicode_simple_category(next) == UnicodeSimpleCategory::Letter) {
-        continue;
-      }
-    }
-
-    result.emplace_back(card_number_begin, card_number_end);
-  }
-  return result;
-}
-
-static bool is_url_unicode_symbol(uint32 c) {
-  if (0x2000 <= c && c <= 0x206f) {  // General Punctuation
-    // Zero Width Non-Joiner/Joiner and various dashes
-    return c == 0x200c || c == 0x200d || (0x2010 <= c && c <= 0x2015);
-  }
-  return get_unicode_simple_category(c) != UnicodeSimpleCategory::Separator;
-}
-
-static bool is_url_path_symbol(uint32 c) {
-  switch (c) {
-    case '\n':
-    case '<':
-    case '>':
-    case '"':
-    case 0xab:  // «
-    case 0xbb:  // »
-      return false;
-    default:
-      return is_url_unicode_symbol(c);
-  }
-}
-
-static vector<Slice> match_tg_urls(Slice str) {
-  vector<Slice> result;
-  const unsigned char *begin = str.ubegin();
-  const unsigned char *end = str.uend();
-  const unsigned char *ptr = begin;
-
-  // '(tg|ton|tonsite)://[a-z0-9_-]{1,253}([/?#][^\s\x{2000}-\x{200b}\x{200e}-\x{200f}\x{2016}-\x{206f}<>«»"]*)?'
-
-  Slice bad_path_end_chars(".:;,('?!`");
-
-  while (end - ptr > 5) {
-    ptr = static_cast<const unsigned char *>(std::memchr(ptr, ':', narrow_cast<int32>(end - ptr)));
-    if (ptr == nullptr) {
-      break;
-    }
-
-    const unsigned char *url_begin = nullptr;
-    if (end - ptr >= 3 && ptr[1] == '/' && ptr[2] == '/') {
-      if (ptr - begin >= 2 && to_lower(ptr[-2]) == 't' && to_lower(ptr[-1]) == 'g') {
-        url_begin = ptr - 2;
-      } else if (ptr - begin >= 3 && to_lower(ptr[-3]) == 't' && to_lower(ptr[-2]) == 'o' && to_lower(ptr[-1]) == 'n') {
-        url_begin = ptr - 3;
-      } else if (ptr - begin >= 7 && to_lower(ptr[-7]) == 't' && to_lower(ptr[-6]) == 'o' && to_lower(ptr[-5]) == 'n' &&
-                 to_lower(ptr[-4]) == 's' && to_lower(ptr[-3]) == 'i' && to_lower(ptr[-2]) == 't' &&
-                 to_lower(ptr[-1]) == 'e') {
-        url_begin = ptr - 3;
-      }
-    }
-    if (url_begin == nullptr) {
-      ++ptr;
-      continue;
-    }
-
-    ptr += 3;
-    auto domain_begin = ptr;
-    while (ptr != end && ptr - domain_begin != 253 && is_alpha_digit_or_underscore_or_minus(*ptr)) {
-      ptr++;
-    }
-    if (ptr == domain_begin) {
-      continue;
-    }
-
-    if (ptr != end && (*ptr == '/' || *ptr == '?' || *ptr == '#')) {
-      auto path_end_ptr = ptr + 1;
-      while (path_end_ptr != end) {
-        uint32 code = 0;
-        auto next_ptr = next_utf8_unsafe(path_end_ptr, &code);
-        if (!is_url_path_symbol(code)) {
-          break;
-        }
-        path_end_ptr = next_ptr;
-      }
-      while (path_end_ptr > ptr + 1 && bad_path_end_chars.find(path_end_ptr[-1]) < bad_path_end_chars.size()) {
-        path_end_ptr--;
-      }
-      if (ptr[0] == '/' || path_end_ptr > ptr + 1) {
-        ptr = path_end_ptr;
-      }
-    }
-
-    result.emplace_back(url_begin, ptr);
-  }
-  return result;
-}
-
-static vector<Slice> match_urls(Slice str) {
-  vector<Slice> result;
-  const unsigned char *begin = str.ubegin();
-  const unsigned char *end = str.uend();
-
-  const auto &is_protocol_symbol = [](uint32 c) {
-    if (c < 0x80) {
-      // do not allow dots in the protocol
-      return is_alpha_digit(c) || c == '+' || c == '-';
-    }
-    // add unicode letters and digits to later discard protocol as invalid
-    return get_unicode_simple_category(c) != UnicodeSimpleCategory::Separator;
-  };
-
-  const auto &is_user_data_symbol = [](uint32 c) {
-    switch (c) {
-      case '\n':
-      case '/':
-      case '[':
-      case ']':
-      case '{':
-      case '}':
-      case '(':
-      case ')':
-      case '\'':
-      case '`':
-      case '<':
-      case '>':
-      case '"':
-      case '@':
-      case 0xab:  // «
-      case 0xbb:  // »
-        return false;
-      default:
-        return is_url_unicode_symbol(c);
-    }
-  };
-
-  const auto &is_domain_symbol = [](uint32 c) {
-    if (c < 0xc0) {
-      return c == '.' || is_alpha_digit_or_underscore_or_minus(c) || c == '~';
-    }
-    return is_url_unicode_symbol(c);
-  };
-
-  Slice bad_path_end_chars(".:;,('?!`");
-
-  while (true) {
-    auto dot_pos = str.find('.');
-    if (dot_pos > str.size() || dot_pos + 1 == str.size()) {
-      break;
-    }
-    if (str[dot_pos + 1] == ' ') {
-      // fast path
-      str = str.substr(dot_pos + 2);
-      begin = str.ubegin();
-      continue;
-    }
-
-    const unsigned char *domain_begin_ptr = begin + dot_pos;
-    while (domain_begin_ptr != begin) {
-      domain_begin_ptr = prev_utf8_unsafe(domain_begin_ptr);
-      uint32 code = 0;
-      auto next_ptr = next_utf8_unsafe(domain_begin_ptr, &code);
-      if (!is_domain_symbol(code)) {
-        domain_begin_ptr = next_ptr;
-        break;
-      }
-    }
-
-    const unsigned char *last_at_ptr = nullptr;
-    const unsigned char *domain_end_ptr = begin + dot_pos;
-    while (domain_end_ptr != end) {
-      uint32 code = 0;
-      auto next_ptr = next_utf8_unsafe(domain_end_ptr, &code);
-      if (code == '@') {
-        last_at_ptr = domain_end_ptr;
-      } else if (!is_domain_symbol(code)) {
-        break;
-      }
-      domain_end_ptr = next_ptr;
-    }
-
-    if (last_at_ptr != nullptr) {
-      while (domain_begin_ptr != begin) {
-        domain_begin_ptr = prev_utf8_unsafe(domain_begin_ptr);
-        uint32 code = 0;
-        auto next_ptr = next_utf8_unsafe(domain_begin_ptr, &code);
-        if (!is_user_data_symbol(code)) {
-          domain_begin_ptr = next_ptr;
-          break;
-        }
-      }
-    }
-    // LOG(ERROR) << "Domain: " << Slice(domain_begin_ptr, domain_end_ptr);
-
-    const unsigned char *url_end_ptr = domain_end_ptr;
-    if (url_end_ptr != end && url_end_ptr[0] == ':') {
-      auto port_end_ptr = url_end_ptr + 1;
-
-      while (port_end_ptr != end && is_digit(port_end_ptr[0])) {
-        port_end_ptr++;
-      }
-
-      auto port_begin_ptr = url_end_ptr + 1;
-      while (port_begin_ptr != port_end_ptr && *port_begin_ptr == '0') {
-        port_begin_ptr++;
-      }
-      if (port_begin_ptr != port_end_ptr && narrow_cast<int>(port_end_ptr - port_begin_ptr) <= 5 &&
-          to_integer<uint32>(Slice(port_begin_ptr, port_end_ptr)) <= 65535) {
-        url_end_ptr = port_end_ptr;
-      }
-    }
-    // LOG(ERROR) << "Domain_port: " << Slice(domain_begin_ptr, url_end_ptr);
-
-    if (url_end_ptr != end && (url_end_ptr[0] == '/' || url_end_ptr[0] == '?' || url_end_ptr[0] == '#')) {
-      auto path_end_ptr = url_end_ptr + 1;
-      while (path_end_ptr != end) {
-        uint32 code = 0;
-        auto next_ptr = next_utf8_unsafe(path_end_ptr, &code);
-        if (!is_url_path_symbol(code)) {
-          break;
-        }
-        path_end_ptr = next_ptr;
-      }
-      while (path_end_ptr > url_end_ptr + 1 && bad_path_end_chars.find(path_end_ptr[-1]) < bad_path_end_chars.size()) {
-        path_end_ptr--;
-      }
-      if (url_end_ptr[0] == '/' || path_end_ptr > url_end_ptr + 1) {
-        url_end_ptr = path_end_ptr;
-      }
-    }
-    while (url_end_ptr > begin + dot_pos + 1 && url_end_ptr[-1] == '.') {
-      url_end_ptr--;
-    }
-    // LOG(ERROR) << "Domain_port_path: " << Slice(domain_begin_ptr, url_end_ptr);
-
-    bool is_bad = false;
-    const unsigned char *url_begin_ptr = domain_begin_ptr;
-    if (url_begin_ptr != begin && url_begin_ptr[-1] == '@') {
-      if (last_at_ptr != nullptr) {
-        is_bad = true;
-      }
-      auto user_data_begin_ptr = url_begin_ptr - 1;
-      while (user_data_begin_ptr != begin) {
-        user_data_begin_ptr = prev_utf8_unsafe(user_data_begin_ptr);
-        uint32 code = 0;
-        auto next_ptr = next_utf8_unsafe(user_data_begin_ptr, &code);
-        if (!is_user_data_symbol(code)) {
-          user_data_begin_ptr = next_ptr;
-          break;
-        }
-      }
-      if (user_data_begin_ptr == url_begin_ptr - 1) {
-        is_bad = true;
-      }
-      url_begin_ptr = user_data_begin_ptr;
-    }
-    // LOG(ERROR) << "User_data_port_path: " << Slice(url_begin_ptr, url_end_ptr);
-
-    if (url_begin_ptr != begin) {
-      Slice prefix(begin, url_begin_ptr);
-      if (prefix.size() >= 6 && ends_with(prefix, "://")) {
-        auto protocol_begin_ptr = url_begin_ptr - 3;
-        while (protocol_begin_ptr != begin) {
-          protocol_begin_ptr = prev_utf8_unsafe(protocol_begin_ptr);
-          uint32 code = 0;
-          auto next_ptr = next_utf8_unsafe(protocol_begin_ptr, &code);
-          if (!is_protocol_symbol(code)) {
-            protocol_begin_ptr = next_ptr;
-            break;
-          }
-        }
-        auto protocol = to_lower(Slice(protocol_begin_ptr, url_begin_ptr - 3));
-        if (ends_with(protocol, "http") && protocol != "shttp") {
-          url_begin_ptr = url_begin_ptr - 7;
-        } else if (ends_with(protocol, "https")) {
-          url_begin_ptr = url_begin_ptr - 8;
-        } else if (ends_with(protocol, "ftp") && protocol != "tftp" && protocol != "sftp") {
-          url_begin_ptr = url_begin_ptr - 6;
-        } else if (ends_with(protocol, "tonsite")) {
-          url_begin_ptr = url_begin_ptr - 10;
-        } else {
-          is_bad = true;
-        }
-      } else {
-        auto prefix_end = prefix.uend();
-        auto prefix_back = prev_utf8_unsafe(prefix_end);
-        uint32 code = 0;
-        next_utf8_unsafe(prefix_back, &code);
-        if (is_word_character(code) || code == '/' || code == '#' || code == '@') {
-          is_bad = true;
-        }
-      }
-    }
-    // LOG(ERROR) << "Full: " << Slice(url_begin_ptr, url_end_ptr) << " " << is_bad;
-
-    if (!is_bad) {
-      if (url_end_ptr > begin + dot_pos + 1) {
-        result.emplace_back(url_begin_ptr, url_end_ptr);
-      }
-      while (url_end_ptr != end && url_end_ptr[0] == '.') {
-        url_end_ptr++;
-      }
-    } else {
-      while (url_end_ptr[-1] != '.') {
-        url_end_ptr--;
-      }
-    }
-
-    if (url_end_ptr <= begin + dot_pos) {
-      url_end_ptr = begin + dot_pos + 1;
-    }
-    str = str.substr(url_end_ptr - begin);
-    begin = url_end_ptr;
-  }
-
-  return result;
-}
-
-static bool is_valid_bank_card(Slice str) {
-  const size_t MIN_CARD_LENGTH = 13;
-  const size_t MAX_CARD_LENGTH = 19;
-  char digits[MAX_CARD_LENGTH];
-  size_t digit_count = 0;
-  for (auto c : str) {
-    if (is_digit(c)) {
-      CHECK(digit_count < MAX_CARD_LENGTH);
-      digits[digit_count++] = c;
-    }
-  }
-  CHECK(digit_count >= MIN_CARD_LENGTH);
-
-  // Luhn algorithm
-  int32 sum = 0;
-  for (size_t i = digit_count; i > 0; i--) {
-    int32 digit = digits[i - 1] - '0';
-    if ((digit_count - i) % 2 == 0) {
-      sum += digit;
-    } else {
-      sum += (digit < 5 ? 2 * digit : 2 * digit - 9);
-    }
-  }
-  if (sum % 10 != 0) {
-    return false;
-  }
-
-  int32 prefix1 = (digits[0] - '0');
-  int32 prefix2 = prefix1 * 10 + (digits[1] - '0');
-  int32 prefix3 = prefix2 * 10 + (digits[2] - '0');
-  int32 prefix4 = prefix3 * 10 + (digits[3] - '0');
-  if (prefix1 == 4) {
-    // Visa
-    return digit_count == 13 || digit_count == 16 || digit_count == 18 || digit_count == 19;
-  }
-  if ((51 <= prefix2 && prefix2 <= 55) || (2221 <= prefix4 && prefix4 <= 2720)) {
-    // mastercard
-    return digit_count == 16;
-  }
-  if (prefix2 == 34 || prefix2 == 37) {
-    // American Express
-    return digit_count == 15;
-  }
-  if (prefix2 == 62 || prefix2 == 81) {
-    // UnionPay
-    return digit_count >= 16;
-  }
-  if (2200 <= prefix4 && prefix4 <= 2204) {
-    // MIR
-    return digit_count == 16;
-  }
-  return true;  // skip length check
-}
-
-bool is_email_address(Slice str) {
-  // /^([a-z0-9_-]{0,26}[.+]){0,10}[a-z0-9_-]{1,35}@(([a-z0-9][a-z0-9_-]{0,28})?[a-z0-9][.]){1,6}[a-z]{2,8}$/i
-  Slice userdata;
-  Slice domain;
-  std::tie(userdata, domain) = split(str, '@');
-  if (domain.empty()) {
-    return false;
-  }
-
-  size_t prev = 0;
-  size_t userdata_part_count = 0;
-  for (size_t i = 0; i < userdata.size(); i++) {
-    if (userdata[i] == '.' || userdata[i] == '+') {
-      if (i - prev >= 27) {
-        return false;
-      }
-      userdata_part_count++;
-      prev = i + 1;
-    } else if (!is_alpha_digit_or_underscore_or_minus(userdata[i])) {
-      return false;
-    }
-  }
-  userdata_part_count++;
-  if (userdata_part_count >= 12) {
-    return false;
-  }
-  auto last_part_length = userdata.size() - prev;
-  if (last_part_length == 0 || last_part_length >= 36) {
-    return false;
-  }
-
-  vector<Slice> domain_parts = full_split(domain, '.');
-  if (domain_parts.size() <= 1 || domain_parts.size() > 7) {
-    return false;
-  }
-  if (domain_parts.back().size() <= 1 || domain_parts.back().size() >= 9) {
-    return false;
-  }
-  for (auto c : domain_parts.back()) {
-    if (!is_alpha(c)) {
-      return false;
-    }
-  }
-  domain_parts.pop_back();
-  for (auto &part : domain_parts) {
-    if (part.empty() || part.size() >= 31) {
-      return false;
-    }
-    for (auto c : part) {
-      if (!is_alpha_digit_or_underscore_or_minus(c)) {
-        return false;
-      }
-    }
-    if (!is_alpha_digit(part[0])) {
-      return false;
-    }
-    if (!is_alpha_digit(part.back())) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-static bool is_common_tld(Slice str) {
-  static const FlatHashSet<Slice, SliceHash> tlds(
-      {"aaa", "aarp", "abb", "abbott", "abbvie", "abc", "able", "abogado", "abudhabi", "ac", "academy", "accenture",
-       "accountant", "accountants", "aco", "actor", "ad", "ads", "adult", "ae", "aeg", "aero", "aetna", "af", "afl",
-       "africa", "ag", "agakhan", "agency", "ai", "aig", "airbus", "airforce", "airtel", "akdn", "al", "alibaba",
-       "alipay", "allfinanz", "allstate", "ally", "alsace", "alstom", "am", "amazon", "americanexpress",
-       "americanfamily", "amex", "amfam", "amica", "amsterdam", "analytics", "android", "anquan", "anz", "ao", "aol",
-       "apartments", "app", "apple", "aq", "aquarelle", "ar", "arab", "aramco", "archi", "army", "arpa", "art", "arte",
-       "as", "asda", "asia", "associates", "at", "athleta", "attorney", "au", "auction", "audi", "audible", "audio",
-       "auspost", "author", "auto", "autos", "aw", "aws", "ax", "axa", "az", "azure", "ba", "baby", "baidu", "banamex",
-       "band", "bank", "bar", "barcelona", "barclaycard", "barclays", "barefoot", "bargains", "baseball", "basketball",
-       "bauhaus", "bayern", "bb", "bbc", "bbt", "bbva", "bcg", "bcn", "bd", "be", "beats", "beauty", "beer", "bentley",
-       "berlin", "best", "bestbuy", "bet", "bf", "bg", "bh", "bharti", "bi", "bible", "bid", "bike", "bing", "bingo",
-       "bio", "biz", "bj", "black", "blackfriday", "blockbuster", "blog", "bloomberg", "blue", "bm", "bms", "bmw", "bn",
-       "bnpparibas", "bo", "boats", "boehringer", "bofa", "bom", "bond", "boo", "book", "booking", "bosch", "bostik",
-       "boston", "bot", "boutique", "box", "br", "bradesco", "bridgestone", "broadway", "broker", "brother", "brussels",
-       "bs", "bt", "build", "builders", "business", "buy", "buzz", "bv", "bw", "by", "bz", "bzh", "ca", "cab", "cafe",
-       "cal", "call", "calvinklein", "cam", "camera", "camp", "canon", "capetown", "capital", "capitalone", "car",
-       "caravan", "cards", "care", "career", "careers", "cars", "casa", "case", "cash", "casino", "cat", "catering",
-       "catholic", "cba", "cbn", "cbre", "cc", "cd", "center", "ceo", "cern", "cf", "cfa", "cfd", "cg", "ch", "chanel",
-       "channel", "charity", "chase", "chat", "cheap", "chintai", "christmas", "chrome", "church", "ci", "cipriani",
-       "circle", "cisco", "citadel", "citi", "citic", "city", "ck", "cl", "claims", "cleaning", "click", "clinic",
-       "clinique", "clothing", "cloud", "club", "clubmed", "cm", "cn", "co", "coach", "codes", "coffee", "college",
-       "cologne", "com", "commbank", "community", "company", "compare", "computer", "comsec", "condos", "construction",
-       "consulting", "contact", "contractors", "cooking", "cool", "coop", "corsica", "country", "coupon", "coupons",
-       "courses", "cpa", "cr", "credit", "creditcard", "creditunion", "cricket", "crown", "crs", "cruise", "cruises",
-       "cu", "cuisinella", "cv", "cw", "cx", "cy", "cymru", "cyou", "cz", "dabur", "dad", "dance", "data", "date",
-       "dating", "datsun", "day", "dclk", "dds", "de", "deal", "dealer", "deals", "degree", "delivery", "dell",
-       "deloitte", "delta", "democrat", "dental", "dentist", "desi", "design", "dev", "dhl", "diamonds", "diet",
-       "digital", "direct", "directory", "discount", "discover", "dish", "diy", "dj", "dk", "dm", "dnp", "do", "docs",
-       "doctor", "dog", "domains", "dot", "download", "drive", "dtv", "dubai", "dunlop", "dupont", "durban", "dvag",
-       "dvr", "dz", "earth", "eat", "ec", "eco", "edeka", "edu", "education", "ee", "eg", "email", "emerck", "energy",
-       "engineer", "engineering", "enterprises", "epson", "equipment", "er", "ericsson", "erni", "es", "esq", "estate",
-       "et", "eu", "eurovision", "eus", "events", "exchange", "expert", "exposed", "express", "extraspace", "fage",
-       "fail", "fairwinds", "faith", "family", "fan", "fans", "farm", "farmers", "fashion", "fast", "fedex", "feedback",
-       "ferrari", "ferrero", "fi", "fidelity", "fido", "film", "final", "finance", "financial", "fire", "firestone",
-       "firmdale", "fish", "fishing", "fit", "fitness", "fj", "fk", "flickr", "flights", "flir", "florist", "flowers",
-       "fly", "fm", "fo", "foo", "food", "football", "ford", "forex", "forsale", "forum", "foundation", "fox", "fr",
-       "free", "fresenius", "frl", "frogans", "frontier", "ftr", "fujitsu", "fun", "fund", "furniture", "futbol", "fyi",
-       "ga", "gal", "gallery", "gallo", "gallup", "game", "games", "gap", "garden", "gay", "gb", "gbiz", "gd", "gdn",
-       "ge", "gea", "gent", "genting", "george", "gf", "gg", "ggee", "gh", "gi", "gift", "gifts", "gives", "giving",
-       "gl", "glass", "gle", "global", "globo", "gm", "gmail", "gmbh", "gmo", "gmx", "gn", "godaddy", "gold",
-       "goldpoint", "golf", "goo", "goodyear", "goog", "google", "gop", "got", "gov", "gp", "gq", "gr", "grainger",
-       "graphics", "gratis", "green", "gripe", "grocery", "group", "gs", "gt", "gu", "gucci", "guge", "guide",
-       "guitars", "guru", "gw", "gy", "hair", "hamburg", "hangout", "haus", "hbo", "hdfc", "hdfcbank", "health",
-       "healthcare", "help", "helsinki", "here", "hermes", "hiphop", "hisamitsu", "hitachi", "hiv", "hk", "hkt", "hm",
-       "hn", "hockey", "holdings", "holiday", "homedepot", "homegoods", "homes", "homesense", "honda", "horse",
-       "hospital", "host", "hosting", "hot", "hotels", "hotmail", "house", "how", "hr", "hsbc", "ht", "hu", "hughes",
-       "hyatt", "hyundai", "ibm", "icbc", "ice", "icu", "id", "ie", "ieee", "ifm", "ikano", "il", "im", "imamat",
-       "imdb", "immo", "immobilien", "in", "inc", "industries", "infiniti", "info", "ing", "ink", "institute",
-       "insurance", "insure", "int", "international", "intuit", "investments", "io", "ipiranga", "iq", "ir", "irish",
-       "is", "ismaili", "ist", "istanbul", "it", "itau", "itv", "jaguar", "java", "jcb", "je", "jeep", "jetzt",
-       "jewelry", "jio", "jll", "jm", "jmp", "jnj", "jo", "jobs", "joburg", "jot", "joy", "jp", "jpmorgan", "jprs",
-       "juegos", "juniper", "kaufen", "kddi", "ke", "kerryhotels", "kerrylogistics", "kerryproperties", "kfh", "kg",
-       "kh", "ki", "kia", "kids", "kim", "kindle", "kitchen", "kiwi", "km", "kn", "koeln", "komatsu", "kosher", "kp",
-       "kpmg", "kpn", "kr", "krd", "kred", "kuokgroup", "kw", "ky", "kyoto", "kz", "la", "lacaixa", "lamborghini",
-       "lamer", "lancaster", "land", "landrover", "lanxess", "lasalle", "lat", "latino", "latrobe", "law", "lawyer",
-       "lb", "lc", "lds", "lease", "leclerc", "lefrak", "legal", "lego", "lexus", "lgbt", "li", "lidl", "life",
-       "lifeinsurance", "lifestyle", "lighting", "like", "lilly", "limited", "limo", "lincoln", "link", "lipsy", "live",
-       "living", "lk", "llc", "llp", "loan", "loans", "locker", "locus", "lol", "london", "lotte", "lotto", "love",
-       "lpl", "lplfinancial", "lr", "ls", "lt", "ltd", "ltda", "lu", "lundbeck", "luxe", "luxury", "lv", "ly", "ma",
-       "madrid", "maif", "maison", "makeup", "man", "management", "mango", "map", "market", "marketing", "markets",
-       "marriott", "marshalls", "mattel", "mba", "mc", "mckinsey", "md", "me", "med", "media", "meet", "melbourne",
-       "meme", "memorial", "men", "menu", "merckmsd", "mg", "mh", "miami", "microsoft", "mil", "mini", "mint", "mit",
-       "mitsubishi", "mk", "ml", "mlb", "mls", "mm", "mma", "mn", "mo", "mobi", "mobile", "moda", "moe", "moi", "mom",
-       "monash", "money", "monster", "mormon", "mortgage", "moscow", "moto", "motorcycles", "mov", "movie", "mp", "mq",
-       "mr", "ms", "msd", "mt", "mtn", "mtr", "mu", "museum", "music", "mv", "mw", "mx", "my", "mz", "na", "nab",
-       "nagoya", "name", "navy", "nba", "nc", "ne", "nec", "net", "netbank", "netflix", "network", "neustar", "new",
-       "news", "next", "nextdirect", "nexus", "nf", "nfl", "ng", "ngo", "nhk", "ni", "nico", "nike", "nikon", "ninja",
-       "nissan", "nissay", "nl", "no", "nokia", "norton", "now", "nowruz", "nowtv", "np", "nr", "nra", "nrw", "ntt",
-       "nu", "nyc", "nz", "obi", "observer", "office", "okinawa", "olayan", "olayangroup", "ollo", "om", "omega", "one",
-       "ong", "onion", "onl", "online", "ooo", "open", "oracle", "orange", "org", "organic", "origins", "osaka",
-       "otsuka", "ott", "ovh", "pa", "page", "panasonic", "paris", "pars", "partners", "parts", "party", "pay", "pccw",
-       "pe", "pet", "pf", "pfizer", "pg", "ph", "pharmacy", "phd", "philips", "phone", "photo", "photography", "photos",
-       "physio", "pics", "pictet", "pictures", "pid", "pin", "ping", "pink", "pioneer", "pizza", "pk", "pl", "place",
-       "play", "playstation", "plumbing", "plus", "pm", "pn", "pnc", "pohl", "poker", "politie", "porn", "post", "pr",
-       "pramerica", "praxi", "press", "prime", "pro", "prod", "productions", "prof", "progressive", "promo",
-       "properties", "property", "protection", "pru", "prudential", "ps", "pt", "pub", "pw", "pwc", "py", "qa", "qpon",
-       "quebec", "quest", "racing", "radio", "re", "read", "realestate", "realtor", "realty", "recipes", "red",
-       "redstone", "redumbrella", "rehab", "reise", "reisen", "reit", "reliance", "ren", "rent", "rentals", "repair",
-       "report", "republican", "rest", "restaurant", "review", "reviews", "rexroth", "rich", "richardli", "ricoh",
-       "ril", "rio", "rip", "ro", "rocks", "rodeo", "rogers", "room", "rs", "rsvp", "ru", "rugby", "ruhr", "run", "rw",
-       "rwe", "ryukyu", "sa", "saarland", "safe", "safety", "sakura", "sale", "salon", "samsclub", "samsung", "sandvik",
-       "sandvikcoromant", "sanofi", "sap", "sarl", "sas", "save", "saxo", "sb", "sbi", "sbs", "sc", "scb", "schaeffler",
-       "schmidt", "scholarships", "school", "schule", "schwarz", "science", "scot", "sd", "se", "search", "seat",
-       "secure", "security", "seek", "select", "sener", "services", "seven", "sew", "sex", "sexy", "sfr", "sg", "sh",
-       "shangrila", "sharp", "shell", "shia", "shiksha", "shoes", "shop", "shopping", "shouji", "show", "si", "silk",
-       "sina", "singles", "site", "sj", "sk", "ski", "skin", "sky", "skype", "sl", "sling", "sm", "smart", "smile",
-       "sn", "sncf", "so", "soccer", "social", "softbank", "software", "sohu", "solar", "solutions", "song", "sony",
-       "soy", "spa", "space", "sport", "spot", "sr", "srl", "ss", "st", "stada", "staples", "star", "statebank",
-       "statefarm", "stc", "stcgroup", "stockholm", "storage", "store", "stream", "studio", "study", "style", "su",
-       "sucks", "supplies", "supply", "support", "surf", "surgery", "suzuki", "sv", "swatch", "swiss", "sx", "sy",
-       "sydney", "systems", "sz", "tab", "taipei", "talk", "taobao", "target", "tatamotors", "tatar", "tattoo", "tax",
-       "taxi", "tc", "tci", "td", "tdk", "team", "tech", "technology", "tel", "temasek", "tennis", "teva", "tf", "tg",
-       "th", "thd", "theater", "theatre", "tiaa", "tickets", "tienda", "tips", "tires", "tirol", "tj", "tjmaxx", "tjx",
-       "tk", "tkmaxx", "tl", "tm", "tmall", "tn", "to", "today", "tokyo", "ton", "tools", "top", "toray", "toshiba",
-       "total", "tours", "town", "toyota", "toys", "tr", "trade", "trading", "training", "travel", "travelers",
-       "travelersinsurance", "trust", "trv", "tt", "tube", "tui", "tunes", "tushu", "tv", "tvs", "tw", "tz", "ua",
-       "ubank", "ubs", "ug", "uk", "unicom", "university", "uno", "uol", "ups", "us", "uy", "uz", "va", "vacations",
-       "vana", "vanguard", "vc", "ve", "vegas", "ventures", "verisign", "vermögensberater", "vermögensberatung",
-       "versicherung", "vet", "vg", "vi", "viajes", "video", "vig", "viking", "villas", "vin", "vip", "virgin", "visa",
-       "vision", "viva", "vivo", "vlaanderen", "vn", "vodka", "volvo", "vote", "voting", "voto", "voyage", "vu",
-       "wales", "walmart", "walter", "wang", "wanggou", "watch", "watches", "weather", "weatherchannel", "webcam",
-       "weber", "website", "wed", "wedding", "weibo", "weir", "wf", "whoswho", "wien", "wiki", "williamhill", "win",
-       "windows", "wine", "winners", "wme", "wolterskluwer", "woodside", "work", "works", "world", "wow", "ws", "wtc",
-       "wtf", "xbox", "xerox", "xihuan", "xin", "ελ", "ευ", "бг", "бел", "дети", "ею", "католик", "ком", "мкд", "мон",
-       "москва", "онлайн", "орг", "рус", "рф", "сайт", "срб", "укр", "қаз", "հայ", "ישראל", "קום", "ابوظبي", "ارامكو",
-       "الاردن", "البحرين", "الجزائر", "السعودية", "العليان", "المغرب", "امارات", "ایران", "بارت", "بازار", "بيتك",
-       "بھارت", "تونس", "سودان", "سورية", "شبكة", "عراق", "عرب", "عمان", "فلسطين", "قطر", "كاثوليك", "كوم", "مصر",
-       "مليسيا", "موريتانيا", "موقع", "همراه", "پاکستان", "ڀارت", "कॉम", "नेट", "भारत", "भारतम्", "भारोत", "संगठन",
-       "বাংলা", "ভারত", "ভাৰত", "ਭਾਰਤ", "ભારત", "ଭାରତ", "இந்தியா", "இலங்கை", "சிங்கப்பூர்", "భారత్", "ಭಾರತ", "ഭാരതം", "ලංකා",
-       "คอม", "ไทย", "ລາວ", "გე", "みんな", "アマゾン", "クラウド", "グーグル", "コム", "ストア", "セール",
-       "ファッション", "ポイント", "世界", "中信", "中国", "中國", "中文网", "亚马逊", "企业", "佛山", "信息", "健康",
-       "八卦", "公司", "公益", "台湾", "台灣", "商城", "商店", "商标", "嘉里", "嘉里大酒店", "在线", "大拿", "天主教",
-       "娱乐", "家電", "广东", "微博", "慈善", "我爱你", "手机", "招聘", "政务", "政府", "新加坡", "新闻", "时尚",
-       "書籍", "机构", "淡马锡", "游戏", "澳門", "点看", "移动", "组织机构", "网址", "网店", "网站", "网络", "联通",
-       "谷歌", "购物", "通販", "集团", "電訊盈科", "飞利浦", "食品", "餐厅", "香格里拉", "香港", "닷넷", "닷컴", "삼성",
-       "한국", "xxx", "xyz", "yachts", "yahoo", "yamaxun", "yandex", "ye", "yodobashi", "yoga", "yokohama", "you",
-       "youtube", "yt", "yun", "za", "zappos", "zara", "zero", "zip", "zm", "zone", "zuerich",
-       // comment for clang-format to prevent it from placing all strings on separate lines
-       "zw"});
-  bool is_lower = true;
-  for (auto c : str) {
-    if (static_cast<uint32>(c - 'a') > 'z' - 'a') {
-      is_lower = false;
-      break;
-    }
-  }
-  if (is_lower) {
-    // fast path
-    return tlds.count(str) > 0;
-  }
-  string str_lower = utf8_to_lower(str);
-  if (str_lower != str && utf8_substr(Slice(str_lower), 1) == utf8_substr(str, 1)) {
-    return false;
-  }
-  return tlds.count(str_lower) > 0;
-}
-
-static Slice fix_url(Slice str) {
-  auto full_url = str;
-
-  bool has_protocol = false;
-  auto str_begin = to_lower(str.substr(0, 10));
-  if (begins_with(str_begin, "http://") || begins_with(str_begin, "https://") || begins_with(str_begin, "ftp://") ||
-      begins_with(str_begin, "tonsite://")) {
-    auto pos = str.find(':');
-    str = str.substr(pos + 3);
-    has_protocol = true;
-  }
-  auto domain_end = std::min({str.size(), str.find('/'), str.find('?'), str.find('#')});  // TODO server: str.find('#')
-  auto domain = str.substr(0, domain_end);
-  auto path = str.substr(domain_end);
-
-  auto at_pos = domain.find('@');
-  if (at_pos < domain.size()) {
-    domain.remove_prefix(at_pos + 1);
-  }
-  domain.truncate(domain.rfind(':'));
-
-  if (domain.size() == 12 && (domain[0] == 't' || domain[0] == 'T')) {
-    string domain_lower = domain.str();
-    to_lower_inplace(domain_lower);
-    if (domain_lower == "teiegram.org") {
-      return Slice();
-    }
-  }
-
-  int32 balance[3] = {0, 0, 0};
-  size_t path_pos;
-  for (path_pos = 0; path_pos < path.size(); path_pos++) {
-    switch (path[path_pos]) {
-      case '(':
-        balance[0]++;
-        break;
-      case '[':
-        balance[1]++;
-        break;
-      case '{':
-        balance[2]++;
-        break;
-      case ')':
-        balance[0]--;
-        break;
-      case ']':
-        balance[1]--;
-        break;
-      case '}':
-        balance[2]--;
-        break;
-    }
-    if (balance[0] < 0 || balance[1] < 0 || balance[2] < 0) {
-      break;
-    }
-  }
-  Slice bad_path_end_chars(".:;,('?!`");
-  while (path_pos > 0 && bad_path_end_chars.find(path[path_pos - 1]) < bad_path_end_chars.size()) {
-    path_pos--;
-  }
-  full_url.remove_suffix(path.size() - path_pos);
-
-  size_t prev = 0;
-  size_t domain_part_count = 0;
-  bool has_non_digit = false;
-  bool is_ipv4 = true;
-  for (size_t i = 0; i <= domain.size(); i++) {
-    if (i == domain.size() || domain[i] == '.') {
-      auto part_size = i - prev;
-      if (part_size == 0 || part_size >= 64 || domain[i - 1] == '-') {
-        return Slice();
-      }
-      if (is_ipv4) {
-        if (part_size > 3) {
-          is_ipv4 = false;
-        }
-        if (part_size == 3 &&
-            (domain[prev] >= '3' || (domain[prev] == '2' && (domain[prev + 1] >= '6' ||
-                                                             (domain[prev + 1] == '5' && domain[prev + 2] >= '6'))))) {
-          is_ipv4 = false;
-        }
-        if (domain[prev] == '0' && part_size >= 2) {
-          is_ipv4 = false;
-        }
-      }
-
-      domain_part_count++;
-      if (i != domain.size()) {
-        prev = i + 1;
-      }
-    } else if (!is_digit(domain[i])) {
-      is_ipv4 = false;
-      has_non_digit = true;
-    }
-  }
-  if (domain_part_count == 1) {
-    return Slice();
-  }
-
-  if (is_ipv4 && domain_part_count == 4) {
-    return full_url;
-  }
-
-  if (!has_non_digit) {
-    return Slice();
-  }
-
-  auto tld = domain.substr(prev);
-  if (utf8_length(tld) <= 1) {
-    return Slice();
-  }
-
-  if (begins_with(tld, "xn--")) {
-    if (tld.size() <= 5) {
-      return Slice();
-    }
-    for (auto c : tld.substr(4)) {
-      if (!is_alpha_digit(c)) {
-        return Slice();
-      }
-    }
-  } else {
-    if (tld.find('_') < tld.size()) {
-      return Slice();
-    }
-    if (tld.find('-') < tld.size()) {
-      return Slice();
-    }
-
-    if (!has_protocol && !is_common_tld(tld)) {
-      return Slice();
-    }
-  }
-
-  CHECK(prev > 0);
-  prev--;
-  while (prev-- > 0) {
-    if (domain[prev] == '_') {
-      return Slice();
-    } else if (domain[prev] == '.') {
-      break;
-    }
-  }
-
-  return full_url;
-}
-
-const FlatHashSet<Slice, SliceHash> &get_valid_short_usernames() {
-  static const FlatHashSet<Slice, SliceHash> valid_usernames{"gif", "vid", "pic"};
-  return valid_usernames;
-}
-
-vector<Slice> find_mentions(Slice str) {
-  auto mentions = match_mentions(str);
-  td::remove_if(mentions, [](Slice mention) {
-    mention.remove_prefix(1);
-    if (mention.size() >= 4) {
-      return false;
-    }
-    auto lowered_mention = to_lower(mention);
-    return get_valid_short_usernames().count(lowered_mention) == 0;
-  });
-  return mentions;
-}
-
-vector<Slice> find_bot_commands(Slice str) {
-  return match_bot_commands(str);
-}
-
-vector<Slice> find_hashtags(Slice str) {
-  return match_hashtags(str);
-}
-
-vector<Slice> find_cashtags(Slice str) {
-  return match_cashtags(str);
-}
-
-vector<Slice> find_bank_card_numbers(Slice str) {
-  vector<Slice> result;
-  for (auto bank_card : match_bank_card_numbers(str)) {
-    if (is_valid_bank_card(bank_card)) {
-      result.emplace_back(bank_card);
-    }
-  }
-  return result;
-}
-
-vector<Slice> find_tg_urls(Slice str) {
-  return match_tg_urls(str);
-}
-
-vector<std::pair<Slice, bool>> find_urls(Slice str) {
-  vector<std::pair<Slice, bool>> result;
-  for (auto url : match_urls(str)) {
-    if (is_email_address(url)) {
-      result.emplace_back(url, true);
-    } else if (begins_with(url, "mailto:") && is_email_address(url.substr(7))) {
-      result.emplace_back(url.substr(7), true);
-    } else {
-      url = fix_url(url);
-      if (!url.empty()) {
-        result.emplace_back(url, false);
-      }
-    }
-  }
-  return result;
-}
-
-vector<std::pair<Slice, int32>> find_media_timestamps(Slice str) {
-  vector<std::pair<Slice, int32>> result;
-  for (auto media_timestamp : match_media_timestamps(str)) {
-    vector<Slice> parts = full_split(media_timestamp, ':');
-    CHECK(parts.size() >= 2);
-    if (parts.size() > 3 || parts.back().size() != 2) {
-      continue;
-    }
-    auto seconds = to_integer<int32>(parts.back());
-    if (seconds >= 60) {
-      continue;
-    }
-    if (parts.size() == 2) {
-      if (parts[0].size() > 4 || parts[0].empty()) {
-        continue;
-      }
-
-      auto minutes = to_integer<int32>(parts[0]);
-      result.emplace_back(media_timestamp, minutes * 60 + seconds);
-      continue;
-    } else {
-      if (parts[0].size() > 2 || parts[1].size() > 2 || parts[0].empty() || parts[1].empty()) {
-        continue;
-      }
-
-      auto minutes = to_integer<int32>(parts[1]);
-      if (minutes >= 60) {
-        continue;
-      }
-      auto hours = to_integer<int32>(parts[0]);
-      result.emplace_back(media_timestamp, hours * 3600 + minutes * 60 + seconds);
-    }
-  }
-  return result;
-}
-
-void remove_empty_entities(vector<MessageEntity> &entities) {
-  td::remove_if(entities, [](const auto &entity) {
-    if (entity.length <= 0) {
-      return true;
-    }
-    switch (entity.type) {
-      case MessageEntity::Type::TextUrl:
-        return entity.argument.empty();
-      case MessageEntity::Type::MentionName:
-        return !entity.user_id.is_valid();
-      case MessageEntity::Type::CustomEmoji:
-        return !entity.custom_emoji_id.is_valid();
-      default:
-        return false;
-    }
-  });
-}
-
-static int32 text_length(Slice text) {
-  return narrow_cast<int32>(utf8_utf16_length(text));
-}
-
-static void sort_entities(vector<MessageEntity> &entities) {
-  if (std::is_sorted(entities.begin(), entities.end())) {
-    return;
-  }
-
-  std::sort(entities.begin(), entities.end());
-}
-
-#define check_is_sorted(entities) check_is_sorted_impl((entities), __LINE__)
-static void check_is_sorted_impl(const vector<MessageEntity> &entities, int line) {
-  LOG_CHECK(std::is_sorted(entities.begin(), entities.end())) << line << " " << entities;
-}
-
-#define check_non_intersecting(entities) check_non_intersecting_impl((entities), __LINE__)
-static void check_non_intersecting_impl(const vector<MessageEntity> &entities, int line) {
-  for (size_t i = 0; i + 1 < entities.size(); i++) {
-    LOG_CHECK(entities[i].offset + entities[i].length <= entities[i + 1].offset) << line << " " << entities;
-  }
-}
-
-static constexpr int32 get_entity_type_mask(MessageEntity::Type type) {
-  return 1 << static_cast<int32>(type);
-}
-
-static constexpr int32 get_splittable_entities_mask() {
-  return get_entity_type_mask(MessageEntity::Type::Bold) | get_entity_type_mask(MessageEntity::Type::Italic) |
-         get_entity_type_mask(MessageEntity::Type::Underline) |
-         get_entity_type_mask(MessageEntity::Type::Strikethrough) | get_entity_type_mask(MessageEntity::Type::Spoiler);
-}
-
-static constexpr int32 get_blockquote_entities_mask() {
-  return get_entity_type_mask(MessageEntity::Type::BlockQuote) |
-         get_entity_type_mask(MessageEntity::Type::ExpandableBlockQuote);
-}
-
-static constexpr int32 get_continuous_entities_mask() {
-  return get_entity_type_mask(MessageEntity::Type::Mention) | get_entity_type_mask(MessageEntity::Type::Hashtag) |
-         get_entity_type_mask(MessageEntity::Type::BotCommand) | get_entity_type_mask(MessageEntity::Type::Url) |
-         get_entity_type_mask(MessageEntity::Type::EmailAddress) | get_entity_type_mask(MessageEntity::Type::TextUrl) |
-         get_entity_type_mask(MessageEntity::Type::MentionName) | get_entity_type_mask(MessageEntity::Type::Cashtag) |
-         get_entity_type_mask(MessageEntity::Type::PhoneNumber) |
-         get_entity_type_mask(MessageEntity::Type::BankCardNumber) |
-         get_entity_type_mask(MessageEntity::Type::MediaTimestamp) |
-         get_entity_type_mask(MessageEntity::Type::CustomEmoji);
-}
-
-static constexpr int32 get_pre_entities_mask() {
-  return get_entity_type_mask(MessageEntity::Type::Pre) | get_entity_type_mask(MessageEntity::Type::Code) |
-         get_entity_type_mask(MessageEntity::Type::PreCode);
-}
-
-static constexpr int32 get_user_entities_mask() {
-  return get_splittable_entities_mask() | get_blockquote_entities_mask() |
-         get_entity_type_mask(MessageEntity::Type::TextUrl) | get_entity_type_mask(MessageEntity::Type::MentionName) |
-         get_entity_type_mask(MessageEntity::Type::CustomEmoji) | get_pre_entities_mask();
-}
-
-static int32 is_splittable_entity(MessageEntity::Type type) {
-  return (get_entity_type_mask(type) & get_splittable_entities_mask()) != 0;
-}
-
-static int32 is_blockquote_entity(MessageEntity::Type type) {
-  return (get_entity_type_mask(type) & get_blockquote_entities_mask()) != 0;
-}
-
-static int32 is_continuous_entity(MessageEntity::Type type) {
-  return (get_entity_type_mask(type) & get_continuous_entities_mask()) != 0;
-}
-
-static int32 is_pre_entity(MessageEntity::Type type) {
-  return (get_entity_type_mask(type) & get_pre_entities_mask()) != 0;
-}
-
-static int32 is_user_entity(MessageEntity::Type type) {
-  return (get_entity_type_mask(type) & get_user_entities_mask()) != 0;
-}
-
-static constexpr size_t SPLITTABLE_ENTITY_TYPE_COUNT = 5;
-
-static size_t get_splittable_entity_type_index(MessageEntity::Type type) {
-  if (static_cast<int32>(type) <= static_cast<int32>(MessageEntity::Type::Bold) + 1) {
-    // Bold or Italic
-    return static_cast<int32>(type) - static_cast<int32>(MessageEntity::Type::Bold);
-  } else if (static_cast<int32>(type) <= static_cast<int32>(MessageEntity::Type::Underline) + 1) {
-    // Underline or Strikethrough
-    return static_cast<int32>(type) - static_cast<int32>(MessageEntity::Type::Underline) + 2;
-  } else {
-    CHECK(type == MessageEntity::Type::Spoiler);
-    return 4;
-  }
-}
-
-static bool are_entities_valid(const vector<MessageEntity> &entities) {
-  if (entities.empty()) {
-    return true;
-  }
-  check_is_sorted(entities);
-
-  int32 end_pos[SPLITTABLE_ENTITY_TYPE_COUNT];
-  std::fill_n(end_pos, SPLITTABLE_ENTITY_TYPE_COUNT, -1);
-  vector<const MessageEntity *> nested_entities_stack;
-  int32 nested_entity_type_mask = 0;
-  for (auto &entity : entities) {
-    while (!nested_entities_stack.empty() &&
-           entity.offset >= nested_entities_stack.back()->offset + nested_entities_stack.back()->length) {
-      // remove non-intersecting entities from the stack
-      nested_entity_type_mask -= get_entity_type_mask(nested_entities_stack.back()->type);
-      nested_entities_stack.pop_back();
-    }
-
-    if (!nested_entities_stack.empty()) {
-      if (entity.offset + entity.length > nested_entities_stack.back()->offset + nested_entities_stack.back()->length) {
-        // entity intersects some previous entity
-        return false;
-      }
-      if ((nested_entity_type_mask & get_entity_type_mask(entity.type)) != 0) {
-        // entity has the same type as one of the previous nested
-        return false;
-      }
-      auto parent_type = nested_entities_stack.back()->type;
-      if (is_pre_entity(parent_type)) {
-        // Pre and Code can't contain nested entities
-        return false;
-      }
-      // parents are not pre after this point
-      if (is_pre_entity(entity.type) && (nested_entity_type_mask & ~get_blockquote_entities_mask()) != 0) {
-        // Pre and Code can't be part of other entities, except blockquote
-        return false;
-      }
-      if ((is_continuous_entity(entity.type) || is_blockquote_entity(entity.type)) &&
-          (nested_entity_type_mask & get_continuous_entities_mask()) != 0) {
-        // continuous and blockquote can't be part of other continuous entity
-        return false;
-      }
-      if (is_blockquote_entity(entity.type) && (nested_entity_type_mask & get_blockquote_entities_mask()) != 0) {
-        // blockquote entities can't be nested
-        return false;
-      }
-      if ((nested_entity_type_mask & get_splittable_entities_mask()) != 0) {
-        // the previous nested entity may be needed to split for consistency
-        // alternatively, better entity merging needs to be implemented
-        return false;
-      }
-    }
-
-    if (is_splittable_entity(entity.type)) {
-      auto index = get_splittable_entity_type_index(entity.type);
-      if (end_pos[index] >= entity.offset) {
-        // the entities can be merged
-        return false;
-      }
-      end_pos[index] = entity.offset + entity.length;
-    }
-    nested_entities_stack.push_back(&entity);
-    nested_entity_type_mask += get_entity_type_mask(entity.type);
-  }
-  return true;
-}
-
-// removes all intersecting entities, including nested
-static void remove_intersecting_entities(vector<MessageEntity> &entities) {
-  check_is_sorted(entities);
-  int32 last_entity_end = 0;
-  size_t left_entities = 0;
-  for (size_t i = 0; i < entities.size(); i++) {
-    CHECK(entities[i].length > 0);
-    if (entities[i].offset >= last_entity_end) {
-      last_entity_end = entities[i].offset + entities[i].length;
-      if (i != left_entities) {
-        entities[left_entities] = std::move(entities[i]);
-      }
-      left_entities++;
-    }
-  }
-  entities.erase(entities.begin() + left_entities, entities.end());
-}
-
-// continuous_entities and blockquote_entities must be pre-sorted and non-overlapping
-static void remove_entities_intersecting_blockquote(vector<MessageEntity> &entities,
-                                                    const vector<MessageEntity> &blockquote_entities) {
-  check_non_intersecting(entities);
-  check_non_intersecting(blockquote_entities);
-  if (blockquote_entities.empty()) {
-    // fast path
-    return;
-  }
-
-  auto blockquote_it = blockquote_entities.begin();
-  size_t left_entities = 0;
-  for (size_t i = 0; i < entities.size(); i++) {
-    while (blockquote_it != blockquote_entities.end() &&
-           (!is_blockquote_entity(blockquote_it->type) ||
-            blockquote_it->offset + blockquote_it->length <= entities[i].offset)) {
-      ++blockquote_it;
-    }
-    if (blockquote_it != blockquote_entities.end() &&
-        (blockquote_it->offset + blockquote_it->length < entities[i].offset + entities[i].length ||
-         (entities[i].offset < blockquote_it->offset &&
-          blockquote_it->offset < entities[i].offset + entities[i].length))) {
-      continue;
-    }
-    if (i != left_entities) {
-      entities[left_entities] = std::move(entities[i]);
-    }
-    left_entities++;
-  }
-  entities.erase(entities.begin() + left_entities, entities.end());
-}
-
-// keeps only non-intersecting entities
-// fixes entity offsets from UTF-8 to UTF-16 offsets
-static void fix_entity_offsets(Slice text, vector<MessageEntity> &entities) {
-  if (entities.empty()) {
-    return;
-  }
-
-  sort_entities(entities);
-
-  remove_intersecting_entities(entities);
-
-  const unsigned char *begin = text.ubegin();
-  const unsigned char *ptr = begin;
-  const unsigned char *end = text.uend();
-
-  int32 utf16_pos = 0;
-  for (auto &entity : entities) {
-    int cnt = 2;
-    auto entity_begin = entity.offset;
-    auto entity_end = entity.offset + entity.length;
-
-    auto pos = static_cast<int32>(ptr - begin);
-    if (entity_begin == pos) {
-      cnt--;
-      entity.offset = utf16_pos;
-    }
-
-    uint32 skipped_code = 0;
-    while (ptr != end && cnt > 0) {
-      unsigned char c = ptr[0];
-      utf16_pos += 1 + (c >= 0xf0);
-      ptr = next_utf8_unsafe(ptr, &skipped_code);
-
-      pos = static_cast<int32>(ptr - begin);
-      if (entity_begin == pos) {
-        cnt--;
-        entity.offset = utf16_pos;
-      } else if (entity_end == pos) {
-        cnt--;
-        entity.length = utf16_pos - entity.offset;
-      }
-    }
-    CHECK(cnt == 0);
-  }
-}
-
-vector<MessageEntity> find_entities(Slice text, bool skip_bot_commands, bool skip_media_timestamps) {
-  vector<MessageEntity> entities;
-
-  auto add_entities = [&entities, &text](MessageEntity::Type type, vector<Slice> (*find_entities_f)(Slice)) mutable {
-    auto new_entities = find_entities_f(text);
-    for (auto &entity : new_entities) {
-      auto offset = narrow_cast<int32>(entity.begin() - text.begin());
-      auto length = narrow_cast<int32>(entity.size());
-      entities.emplace_back(type, offset, length);
-    }
-  };
-  add_entities(MessageEntity::Type::Mention, find_mentions);
-  if (!skip_bot_commands) {
-    add_entities(MessageEntity::Type::BotCommand, find_bot_commands);
-  }
-  add_entities(MessageEntity::Type::Hashtag, find_hashtags);
-  add_entities(MessageEntity::Type::Cashtag, find_cashtags);
-  // TODO find_phone_numbers
-  add_entities(MessageEntity::Type::BankCardNumber, find_bank_card_numbers);
-  add_entities(MessageEntity::Type::Url, find_tg_urls);
-  auto urls = find_urls(text);
-  for (auto &url : urls) {
-    auto type = url.second ? MessageEntity::Type::EmailAddress : MessageEntity::Type::Url;
-    auto offset = narrow_cast<int32>(url.first.begin() - text.begin());
-    auto length = narrow_cast<int32>(url.first.size());
-    entities.emplace_back(type, offset, length);
-  }
-  if (!skip_media_timestamps) {
-    auto media_timestamps = find_media_timestamps(text);
-    for (auto &entity : media_timestamps) {
-      auto offset = narrow_cast<int32>(entity.first.begin() - text.begin());
-      auto length = narrow_cast<int32>(entity.first.size());
-      entities.emplace_back(MessageEntity::Type::MediaTimestamp, offset, length, entity.second);
-    }
-  }
-
-  fix_entity_offsets(text, entities);
-
-  return entities;
-}
-
-static vector<MessageEntity> find_media_timestamp_entities(Slice text) {
-  vector<MessageEntity> entities;
-
-  auto media_timestamps = find_media_timestamps(text);
-  for (auto &entity : media_timestamps) {
-    auto offset = narrow_cast<int32>(entity.first.begin() - text.begin());
-    auto length = narrow_cast<int32>(entity.first.size());
-    entities.emplace_back(MessageEntity::Type::MediaTimestamp, offset, length, entity.second);
-  }
-
-  fix_entity_offsets(text, entities);
-
-  return entities;
-}
-
-static vector<MessageEntity> merge_entities(vector<MessageEntity> old_entities, vector<MessageEntity> new_entities) {
-  if (new_entities.empty()) {
-    return old_entities;
-  }
-  if (old_entities.empty()) {
-    return new_entities;
-  }
-
-  vector<MessageEntity> result;
-  result.reserve(old_entities.size() + new_entities.size());
-
-  auto new_it = new_entities.begin();
-  auto new_end = new_entities.end();
-  for (auto &old_entity : old_entities) {
-    while (new_it != new_end && new_it->offset + new_it->length <= old_entity.offset) {
-      result.push_back(std::move(*new_it));
-      ++new_it;
-    }
-    auto old_entity_end = old_entity.offset + old_entity.length;
-    result.push_back(std::move(old_entity));
-    while (new_it != new_end && new_it->offset < old_entity_end) {
-      ++new_it;
-    }
-  }
-  while (new_it != new_end) {
-    result.push_back(std::move(*new_it));
-    ++new_it;
-  }
-
-  return result;
-}
-
-static bool is_plain_domain(Slice url) {
-  return url.find('/') >= url.size() && url.find('?') >= url.size() && url.find('#') >= url.size();
-}
-
-Slice get_first_url(const FormattedText &text) {
-  for (auto &entity : text.entities) {
-    switch (entity.type) {
-      case MessageEntity::Type::Mention:
-        break;
-      case MessageEntity::Type::Hashtag:
-        break;
-      case MessageEntity::Type::BotCommand:
-        break;
-      case MessageEntity::Type::Url: {
-        if (entity.length <= 4) {
-          continue;
-        }
-        auto url = utf8_utf16_substr(text.text, entity.offset, entity.length);
-        string scheme = to_lower(url.substr(0, 8));
-        if (scheme == "ton:" || begins_with(scheme, "tg:") || scheme == "ftp:" || scheme == "tonsite:" ||
-            is_plain_domain(url)) {
-          continue;
-        }
-        return url;
-      }
-      case MessageEntity::Type::EmailAddress:
-        break;
-      case MessageEntity::Type::Bold:
-        break;
-      case MessageEntity::Type::Italic:
-        break;
-      case MessageEntity::Type::Underline:
-        break;
-      case MessageEntity::Type::Strikethrough:
-        break;
-      case MessageEntity::Type::BlockQuote:
-        break;
-      case MessageEntity::Type::Code:
-        break;
-      case MessageEntity::Type::Pre:
-        break;
-      case MessageEntity::Type::PreCode:
-        break;
-      case MessageEntity::Type::TextUrl: {
-        Slice url = entity.argument;
-        string scheme = to_lower(url.substr(0, 8));
-        if (scheme == "ton:" || begins_with(scheme, "tg:") || scheme == "ftp:" || scheme == "tonsite:") {
-          continue;
-        }
-        return url;
-      }
-      case MessageEntity::Type::MentionName:
-        break;
-      case MessageEntity::Type::Cashtag:
-        break;
-      case MessageEntity::Type::PhoneNumber:
-        break;
-      case MessageEntity::Type::BankCardNumber:
-        break;
-      case MessageEntity::Type::MediaTimestamp:
-        break;
-      case MessageEntity::Type::Spoiler:
-        break;
-      case MessageEntity::Type::CustomEmoji:
-        break;
-      case MessageEntity::Type::ExpandableBlockQuote:
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  return Slice();
-}
-
-bool is_visible_url(const FormattedText &text, const string &url) {
-  if (url.empty()) {
-    return false;
-  }
-
-  auto url_size = static_cast<int32>(utf8_utf16_length(url));
-  auto cur_offset = 0;
-  Slice left_text = text.text;
-  for (auto &entity : text.entities) {
-    if (entity.type == MessageEntity::Type::Url && url_size == entity.length) {
-      CHECK(entity.offset >= cur_offset);
-      left_text = utf8_utf16_substr(left_text, entity.offset - cur_offset);
-      cur_offset = entity.offset;
-      if (begins_with(left_text, url)) {
-        return true;
-      }
-    }
-  }
-
-  return false;
-}
-
-Result<vector<MessageEntity>> parse_markdown(string &text) {
-  size_t result_size = 0;
-  vector<MessageEntity> entities;
-  size_t size = text.size();
-  int32 utf16_offset = 0;
-  for (size_t i = 0; i < size; i++) {
-    auto c = static_cast<unsigned char>(text[i]);
-    if (c == '\\' && (text[i + 1] == '_' || text[i + 1] == '*' || text[i + 1] == '`' || text[i + 1] == '[')) {
-      i++;
-      text[result_size++] = text[i];
-      utf16_offset++;
-      continue;
-    }
-    if (c != '_' && c != '*' && c != '`' && c != '[') {
-      if (is_utf8_character_first_code_unit(c)) {
-        utf16_offset += 1 + (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-      }
-      text[result_size++] = text[i];
-      continue;
-    }
-
-    // we are at begin of the entity
-    size_t begin_pos = i;
-    char end_character = text[i];
-    bool is_pre = false;
-    if (c == '[') {
-      end_character = ']';
-    }
-
-    i++;
-
-    string language;
-    if (c == '`' && text[i] == '`' && text[i + 1] == '`') {
-      i += 2;
-      is_pre = true;
-      size_t language_end = i;
-      while (!is_space(text[language_end]) && text[language_end] != '`') {
-        language_end++;
-      }
-      if (i != language_end && language_end < size && text[language_end] != '`') {
-        language.assign(text, i, language_end - i);
-        i = language_end;
-      }
-      // skip one new line in the beginning of the text
-      if (text[i] == '\n' || text[i] == '\r') {
-        if ((text[i + 1] == '\n' || text[i + 1] == '\r') && text[i] != text[i + 1]) {
-          i += 2;
-        } else {
-          i++;
-        }
-      }
-    }
-
-    int32 entity_offset = utf16_offset;
-    while (i < size && (text[i] != end_character || (is_pre && !(text[i + 1] == '`' && text[i + 2] == '`')))) {
-      auto cur_ch = static_cast<unsigned char>(text[i]);
-      if (is_utf8_character_first_code_unit(cur_ch)) {
-        utf16_offset += 1 + (cur_ch >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-      }
-      text[result_size++] = text[i++];
-    }
-    if (i == size) {
-      return Status::Error(400, PSLICE() << "Can't find end of the entity starting at byte offset " << begin_pos);
-    }
-
-    if (entity_offset != utf16_offset) {
-      auto entity_length = utf16_offset - entity_offset;
-      switch (c) {
-        case '_':
-          entities.emplace_back(MessageEntity::Type::Italic, entity_offset, entity_length);
-          break;
-        case '*':
-          entities.emplace_back(MessageEntity::Type::Bold, entity_offset, entity_length);
-          break;
-        case '[': {
-          string url;
-          if (text[i + 1] != '(') {
-            // use text as a URL
-            url.assign(text, begin_pos + 1, i - begin_pos - 1);
-          } else {
-            i += 2;
-            while (i < size && text[i] != ')') {
-              url.push_back(text[i++]);
-            }
-          }
-          auto user_id = LinkManager::get_link_user_id(url);
-          if (user_id.is_valid()) {
-            entities.emplace_back(entity_offset, entity_length, user_id);
-          } else {
-            url = LinkManager::get_checked_link(url);
-            if (!url.empty()) {
-              entities.emplace_back(MessageEntity::Type::TextUrl, entity_offset, entity_length, std::move(url));
-            }
-          }
-          break;
-        }
-        case '`':
-          if (is_pre) {
-            if (language.empty()) {
-              entities.emplace_back(MessageEntity::Type::Pre, entity_offset, entity_length);
-            } else {
-              entities.emplace_back(MessageEntity::Type::PreCode, entity_offset, entity_length, language);
-            }
-          } else {
-            entities.emplace_back(MessageEntity::Type::Code, entity_offset, entity_length);
-          }
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-    if (is_pre) {
-      i += 2;
-    }
-  }
-  text.resize(result_size);
-  return std::move(entities);
-}
-
-Result<vector<MessageEntity>> parse_markdown_v2(string &text) {
-  size_t result_size = 0;
-  vector<MessageEntity> entities;
-  int32 utf16_offset = 0;
-
-  struct EntityInfo {
-    MessageEntity::Type type;
-    string argument;
-    int32 entity_offset;
-    size_t entity_byte_offset;
-    size_t entity_begin_pos;
-
-    EntityInfo(MessageEntity::Type type, string argument, int32 entity_offset, size_t entity_byte_offset,
-               size_t entity_begin_pos)
-        : type(type)
-        , argument(std::move(argument))
-        , entity_offset(entity_offset)
-        , entity_byte_offset(entity_byte_offset)
-        , entity_begin_pos(entity_begin_pos) {
-    }
-  };
-  vector<EntityInfo> nested_entities;
-
-  bool have_blockquote = false;
-  bool can_start_blockquote = true;
-  for (size_t i = 0; i < text.size(); i++) {
-    auto c = static_cast<unsigned char>(text[i]);
-    if (c == '\\' && text[i + 1] > 0 && text[i + 1] <= 126) {
-      i++;
-      utf16_offset += 1;
-      text[result_size++] = text[i];
-      if (text[i] != '\r') {
-        can_start_blockquote = (text[i] == '\n');
-      }
-      continue;
-    }
-
-    Slice reserved_characters("_*[]()~`>#+-=|{}.!\n");
-    if (!nested_entities.empty()) {
-      switch (nested_entities.back().type) {
-        case MessageEntity::Type::Code:
-        case MessageEntity::Type::Pre:
-        case MessageEntity::Type::PreCode:
-          reserved_characters = Slice("`");
-          break;
-        default:
-          break;
-      }
-    }
-
-    if (reserved_characters.find(text[i]) == Slice::npos) {
-      if (is_utf8_character_first_code_unit(c)) {
-        utf16_offset += 1 + (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-        if (c != '\r') {
-          can_start_blockquote = false;
-        }
-      }
-      text[result_size++] = text[i];
-      continue;
-    }
-
-    bool is_end_of_an_entity = [&] {
-      if (nested_entities.empty()) {
-        return false;
-      }
-      if (have_blockquote && c == '\n' && (i + 1 == text.size() || text[i + 1] != '>')) {
-        return true;
-      }
-      switch (nested_entities.back().type) {
-        case MessageEntity::Type::Bold:
-          return c == '*';
-        case MessageEntity::Type::Italic:
-          return c == '_' && text[i + 1] != '_';
-        case MessageEntity::Type::Code:
-          return c == '`';
-        case MessageEntity::Type::Pre:
-        case MessageEntity::Type::PreCode:
-          return c == '`' && text[i + 1] == '`' && text[i + 2] == '`';
-        case MessageEntity::Type::TextUrl:
-          return c == ']';
-        case MessageEntity::Type::Underline:
-          return c == '_' && text[i + 1] == '_';
-        case MessageEntity::Type::Strikethrough:
-          return c == '~';
-        case MessageEntity::Type::Spoiler:
-          return c == '|' && text[i + 1] == '|';
-        case MessageEntity::Type::CustomEmoji:
-          return c == ']';
-        case MessageEntity::Type::BlockQuote:
-          return false;
-        default:
-          UNREACHABLE();
-          return false;
-      }
-    }();
-    if (!is_end_of_an_entity) {
-      // begin of an entity
-      MessageEntity::Type type;
-      string argument;
-      auto entity_byte_offset = i;
-      switch (c) {
-        case '_':
-          if (text[i + 1] == '_') {
-            type = MessageEntity::Type::Underline;
-            i++;
-          } else {
-            type = MessageEntity::Type::Italic;
-          }
-          break;
-        case '*':
-          type = MessageEntity::Type::Bold;
-          break;
-        case '~':
-          type = MessageEntity::Type::Strikethrough;
-          break;
-        case '|':
-          if (text[i + 1] == '|') {
-            i++;
-            type = MessageEntity::Type::Spoiler;
-          } else {
-            return Status::Error(400, PSLICE() << "Character '" << text[i]
-                                               << "' is reserved and must be escaped with the preceding '\\'");
-          }
-          break;
-        case '[':
-          type = MessageEntity::Type::TextUrl;
-          break;
-        case '`':
-          if (text[i + 1] == '`' && text[i + 2] == '`') {
-            i += 3;
-            type = MessageEntity::Type::Pre;
-            size_t language_end = i;
-            while (!is_space(text[language_end]) && text[language_end] != '`') {
-              language_end++;
-            }
-            if (i != language_end && language_end < text.size() && text[language_end] != '`') {
-              type = MessageEntity::Type::PreCode;
-              argument = text.substr(i, language_end - i);
-              i = language_end;
-            }
-            // skip one new line in the beginning of the text
-            if (text[i] == '\n' || text[i] == '\r') {
-              if ((text[i + 1] == '\n' || text[i + 1] == '\r') && text[i] != text[i + 1]) {
-                i += 2;
-              } else {
-                i++;
-              }
-            }
-
-            i--;
-          } else {
-            type = MessageEntity::Type::Code;
-          }
-          break;
-        case '!':
-          if (text[i + 1] == '[') {
-            i++;
-            type = MessageEntity::Type::CustomEmoji;
-          } else {
-            return Status::Error(400, PSLICE() << "Character '" << text[i]
-                                               << "' is reserved and must be escaped with the preceding '\\'");
-          }
-          break;
-        case '\n':
-          utf16_offset += 1;
-          text[result_size++] = '\n';
-          can_start_blockquote = true;
-          type = MessageEntity::Type::Size;
-          break;
-        case '>':
-          if (can_start_blockquote) {
-            if (have_blockquote) {
-              type = MessageEntity::Type::Size;
-            } else {
-              type = MessageEntity::Type::BlockQuote;
-              have_blockquote = true;
-            }
-          } else {
-            return Status::Error(400, PSLICE() << "Character '" << text[i]
-                                               << "' is reserved and must be escaped with the preceding '\\'");
-          }
-          break;
-        default:
-          return Status::Error(
-              400, PSLICE() << "Character '" << text[i] << "' is reserved and must be escaped with the preceding '\\'");
-      }
-      if (type == MessageEntity::Type::Size) {
-        continue;
-      }
-      nested_entities.emplace_back(type, std::move(argument), utf16_offset, entity_byte_offset, result_size);
-    } else {
-      // end of an entity
-      auto type = nested_entities.back().type;
-      if (c == '\n' && type != MessageEntity::Type::BlockQuote) {
-        if (type != MessageEntity::Type::Spoiler || !(nested_entities.back().entity_byte_offset == i - 2 ||
-                                                      (nested_entities.back().entity_byte_offset == i - 3 &&
-                                                       result_size != 0 && text[result_size - 1] == '\r'))) {
-          return Status::Error(400, PSLICE() << "Can't find end of " << nested_entities.back().type
-                                             << " entity at byte offset " << nested_entities.back().entity_byte_offset);
-        }
-        nested_entities.pop_back();
-        CHECK(!nested_entities.empty());
-        type = nested_entities.back().type;
-        if (type != MessageEntity::Type::BlockQuote) {
-          CHECK(type != MessageEntity::Type::Spoiler);
-          return Status::Error(400, PSLICE() << "Can't find end of " << nested_entities.back().type
-                                             << " entity at byte offset " << nested_entities.back().entity_byte_offset);
-        }
-        type = MessageEntity::Type::ExpandableBlockQuote;
-      }
-      auto argument = std::move(nested_entities.back().argument);
-      UserId user_id;
-      CustomEmojiId custom_emoji_id;
-      bool skip_entity = utf16_offset == nested_entities.back().entity_offset;
-      switch (type) {
-        case MessageEntity::Type::Bold:
-        case MessageEntity::Type::Italic:
-        case MessageEntity::Type::Code:
-        case MessageEntity::Type::Strikethrough:
-          break;
-        case MessageEntity::Type::Underline:
-        case MessageEntity::Type::Spoiler:
-          i++;
-          break;
-        case MessageEntity::Type::Pre:
-        case MessageEntity::Type::PreCode:
-          i += 2;
-          break;
-        case MessageEntity::Type::TextUrl: {
-          string url;
-          if (text[i + 1] != '(') {
-            // use text as a URL
-            url = text.substr(nested_entities.back().entity_begin_pos,
-                              result_size - nested_entities.back().entity_begin_pos);
-          } else {
-            i += 2;
-            auto url_begin_pos = i;
-            while (i < text.size() && text[i] != ')') {
-              if (text[i] == '\\' && text[i + 1] > 0 && text[i + 1] <= 126) {
-                url += text[i + 1];
-                i += 2;
-                continue;
-              }
-              url += text[i++];
-            }
-            if (text[i] != ')') {
-              return Status::Error(400, PSLICE() << "Can't find end of a URL at byte offset " << url_begin_pos);
-            }
-          }
-          user_id = LinkManager::get_link_user_id(url);
-          if (!user_id.is_valid()) {
-            url = LinkManager::get_checked_link(url);
-            if (url.empty()) {
-              skip_entity = true;
-            } else {
-              argument = std::move(url);
-            }
-          }
-          break;
-        }
-        case MessageEntity::Type::CustomEmoji: {
-          if (text[i + 1] != '(') {
-            return Status::Error(400, "Custom emoji entity must contain a tg://emoji URL");
-          }
-          i += 2;
-          string url;
-          auto url_begin_pos = i;
-          while (i < text.size() && text[i] != ')') {
-            if (text[i] == '\\' && text[i + 1] > 0 && text[i + 1] <= 126) {
-              url += text[i + 1];
-              i += 2;
-              continue;
-            }
-            url += text[i++];
-          }
-          if (text[i] != ')') {
-            return Status::Error(400, PSLICE()
-                                          << "Can't find end of a custom emoji URL at byte offset " << url_begin_pos);
-          }
-          TRY_RESULT_ASSIGN(custom_emoji_id, LinkManager::get_link_custom_emoji_id(url));
-          break;
-        }
-        case MessageEntity::Type::BlockQuote:
-        case MessageEntity::Type::ExpandableBlockQuote:
-          CHECK(have_blockquote);
-          have_blockquote = false;
-          text[result_size++] = text[i];
-          can_start_blockquote = true;
-          utf16_offset += 1;
-          skip_entity = false;
-          break;
-        default:
-          UNREACHABLE();
-          return false;
-      }
-
-      if (!skip_entity) {
-        auto entity_offset = nested_entities.back().entity_offset;
-        auto entity_length = utf16_offset - entity_offset;
-        if (user_id.is_valid()) {
-          entities.emplace_back(entity_offset, entity_length, user_id);
-        } else if (custom_emoji_id.is_valid()) {
-          entities.emplace_back(type, entity_offset, entity_length, custom_emoji_id);
-        } else {
-          entities.emplace_back(type, entity_offset, entity_length, std::move(argument));
-        }
-      }
-      nested_entities.pop_back();
-    }
-  }
-  if (have_blockquote) {
-    CHECK(!nested_entities.empty());
-    auto type = MessageEntity::Type::BlockQuote;
-    if (nested_entities.back().type == MessageEntity::Type::Spoiler &&
-        nested_entities.back().entity_byte_offset == text.size() - 2) {
-      nested_entities.pop_back();
-      CHECK(!nested_entities.empty());
-      type = MessageEntity::Type::ExpandableBlockQuote;
-    }
-    if (nested_entities.back().type == MessageEntity::Type::BlockQuote) {
-      have_blockquote = false;
-      auto entity_offset = nested_entities.back().entity_offset;
-      auto entity_length = utf16_offset - entity_offset;
-      if (entity_length != 0) {
-        entities.emplace_back(type, entity_offset, entity_length);
-      }
-      nested_entities.pop_back();
-    }
-  }
-  if (!nested_entities.empty()) {
-    return Status::Error(400, PSLICE() << "Can't find end of " << nested_entities.back().type
-                                       << " entity at byte offset " << nested_entities.back().entity_byte_offset);
-  }
-
-  sort_entities(entities);
-
-  text.resize(result_size);
-  return std::move(entities);
-}
-
-static vector<Slice> find_text_url_entities_v3(Slice text) {
-  vector<Slice> result;
-  size_t size = text.size();
-  for (size_t i = 0; i < size; i++) {
-    if (text[i] != '[') {
-      continue;
-    }
-
-    auto text_begin = i;
-    auto text_end = text_begin + 1;
-    while (text_end < size && text[text_end] != ']') {
-      text_end++;
-    }
-
-    i = text_end;  // prevent quadratic asymptotic
-
-    if (text_end == size || text_end == text_begin + 1) {
-      continue;
-    }
-
-    auto url_begin = text_end + 1;
-    if (url_begin == size || text[url_begin] != '(') {
-      continue;
-    }
-
-    size_t url_end = url_begin + 1;
-    while (url_end < size && text[url_end] != ')') {
-      url_end++;
-    }
-
-    i = url_end;  // prevent quadratic asymptotic, disallows [a](b[c](t.me)
-
-    if (url_end < size) {
-      Slice url = text.substr(url_begin + 1, url_end - url_begin - 1);
-      if (!LinkManager::get_checked_link(url).empty()) {
-        result.push_back(text.substr(text_begin, text_end - text_begin + 1));
-        result.push_back(text.substr(url_begin, url_end - url_begin + 1));
-      }
-    }
-  }
-  return result;
-}
-
-// entities must be valid for the text
-static FormattedText parse_text_url_entities_v3(Slice text, const vector<MessageEntity> &entities) {
-  // continuous entities can't intersect TextUrl entities,
-  // so try to find new TextUrl entities only between the predetermined continuous entities
-
-  Slice debug_initial_text = text;
-
-  FormattedText result;
-  int32 result_text_utf16_length = 0;
-  vector<MessageEntity> part_entities;
-  vector<MessageEntity> part_splittable_entities[SPLITTABLE_ENTITY_TYPE_COUNT];
-  int32 part_begin = 0;
-  int32 max_end = 0;
-  int32 skipped_length = 0;
-  auto add_part = [&](int32 part_end) {
-    // we have [part_begin, max_end) kept part and [max_end, part_end) part to parse text_url entities
-
-    if (max_end != part_begin) {
-      // add all entities from the kept part
-      auto kept_part_text = utf8_utf16_substr(text, 0, max_end - part_begin);
-      text = text.substr(kept_part_text.size());
-
-      result.text.append(kept_part_text.begin(), kept_part_text.size());
-      append(result.entities, std::move(part_entities));
-      part_entities.clear();
-      result_text_utf16_length += max_end - part_begin;
-    }
-
-    size_t splittable_entity_pos[SPLITTABLE_ENTITY_TYPE_COUNT] = {};
-    for (const auto &splittable_entities : part_splittable_entities) {
-      check_non_intersecting(splittable_entities);
-    }
-    if (part_end != max_end) {
-      // try to find text_url entities in the left part
-      auto parsed_part_text = utf8_utf16_substr(text, 0, part_end - max_end);
-      text = text.substr(parsed_part_text.size());
-
-      vector<Slice> text_urls = find_text_url_entities_v3(parsed_part_text);
-
-      int32 text_utf16_offset = max_end;
-      size_t prev_pos = 0;
-      for (size_t i = 0; i < text_urls.size(); i += 2) {
-        auto text_begin_pos = static_cast<size_t>(text_urls[i].begin() - parsed_part_text.begin());
-        auto text_end_pos = text_begin_pos + text_urls[i].size() - 1;
-        auto url_begin_pos = static_cast<size_t>(text_urls[i + 1].begin() - parsed_part_text.begin());
-        auto url_end_pos = url_begin_pos + text_urls[i + 1].size() - 1;
-        CHECK(parsed_part_text[text_begin_pos] == '[');
-        CHECK(parsed_part_text[text_end_pos] == ']');
-        CHECK(url_begin_pos == text_end_pos + 1);
-        CHECK(parsed_part_text[url_begin_pos] == '(');
-        CHECK(parsed_part_text[url_end_pos] == ')');
-
-        Slice before_text_url = parsed_part_text.substr(prev_pos, text_begin_pos - prev_pos);
-        auto before_text_url_utf16_length = text_length(before_text_url);
-        result_text_utf16_length += before_text_url_utf16_length;
-        result.text.append(before_text_url.begin(), before_text_url.size());
-        text_utf16_offset += before_text_url_utf16_length;
-
-        Slice text_url = parsed_part_text.substr(text_begin_pos + 1, text_end_pos - text_begin_pos - 1);
-        auto text_url_utf16_length = text_length(text_url);
-        Slice url = parsed_part_text.substr(url_begin_pos + 1, url_end_pos - url_begin_pos - 1);
-        auto url_utf16_length = text_length(url);
-        result.entities.emplace_back(MessageEntity::Type::TextUrl, result_text_utf16_length, text_url_utf16_length,
-                                     LinkManager::get_checked_link(url));
-        result.text.append(text_url.begin(), text_url.size());
-        result_text_utf16_length += text_url_utf16_length;
-
-        auto initial_utf16_length = 1 + text_url_utf16_length + 1 + 1 + url_utf16_length + 1;
-
-        // adjust splittable entities, removing deleted parts from them
-        // in the segment [text_utf16_offset, text_utf16_offset + initial_utf16_length)
-        // the first character and the last (url_utf16_length + 3) characters are deleted
-        for (size_t index = 0; index < SPLITTABLE_ENTITY_TYPE_COUNT; index++) {
-          auto &pos = splittable_entity_pos[index];
-          auto &splittable_entities = part_splittable_entities[index];
-          while (pos < splittable_entities.size() &&
-                 splittable_entities[pos].offset < text_utf16_offset + initial_utf16_length) {
-            auto offset = splittable_entities[pos].offset;
-            auto length = splittable_entities[pos].length;
-            if (offset + length > text_utf16_offset + 1 + text_url_utf16_length) {
-              // ends after last removed part; truncate length
-              length = text_utf16_offset + 1 + text_url_utf16_length - offset;
-            }
-            if (offset >= text_utf16_offset + 1) {
-              offset--;
-            } else if (offset + length >= text_utf16_offset + 1) {
-              length--;
-            }
-            if (length > 0) {
-              CHECK(offset >= skipped_length);
-              CHECK(offset - skipped_length + length <= result_text_utf16_length);
-              if (offset < text_utf16_offset && offset + length > text_utf16_offset) {
-                // entity intersects start on the new text_url entity; split it
-                result.entities.emplace_back(splittable_entities[pos].type, offset - skipped_length,
-                                             text_utf16_offset - offset);
-                length -= text_utf16_offset - offset;
-                offset = text_utf16_offset;
-              }
-              result.entities.emplace_back(splittable_entities[pos].type, offset - skipped_length, length);
-            }
-            if (splittable_entities[pos].offset + splittable_entities[pos].length >
-                text_utf16_offset + initial_utf16_length) {
-              // begins before end of the segment, but ends after it
-              // need to keep the entity for future segments, so split the entity
-              splittable_entities[pos].length = splittable_entities[pos].offset + splittable_entities[pos].length -
-                                                (text_utf16_offset + initial_utf16_length);
-              splittable_entities[pos].offset = text_utf16_offset + initial_utf16_length;
-            } else {
-              pos++;
-            }
-          }
-        }
-        text_utf16_offset += initial_utf16_length;
-
-        skipped_length += 2 + 2 + url_utf16_length;
-        prev_pos = url_end_pos + 1;
-      }
-
-      result.text.append(parsed_part_text.begin() + prev_pos, parsed_part_text.size() - prev_pos);
-      result_text_utf16_length += part_end - text_utf16_offset;
-    }
-
-    // now add all left splittable entities from [part_begin, part_end)
-    for (size_t index = 0; index < SPLITTABLE_ENTITY_TYPE_COUNT; index++) {
-      auto &pos = splittable_entity_pos[index];
-      auto &splittable_entities = part_splittable_entities[index];
-      while (pos < splittable_entities.size() && splittable_entities[pos].offset < part_end) {
-        if (splittable_entities[pos].offset + splittable_entities[pos].length > part_end) {
-          // begins before end of the segment, but ends after it
-          // need to keep the entity for future segments, so split the entity
-          // entities don't intersect each other, so there can be at most one such entity
-          result.entities.emplace_back(splittable_entities[pos].type, splittable_entities[pos].offset - skipped_length,
-                                       part_end - splittable_entities[pos].offset);
-
-          splittable_entities[pos].length =
-              splittable_entities[pos].offset + splittable_entities[pos].length - part_end;
-          splittable_entities[pos].offset = part_end;
-        } else {
-          result.entities.emplace_back(splittable_entities[pos].type, splittable_entities[pos].offset - skipped_length,
-                                       splittable_entities[pos].length);
-          pos++;
-        }
-      }
-      if (pos == splittable_entities.size()) {
-        splittable_entities.clear();
-      } else {
-        CHECK(pos == splittable_entities.size() - 1);
-        LOG_CHECK(!text.empty()) << '"' << debug_initial_text << "\" " << entities;
-        splittable_entities[0] = std::move(splittable_entities.back());
-        splittable_entities.resize(1);
-      }
-    }
-
-    part_begin = part_end;
-  };
-
-  for (const auto &entity : entities) {
-    if (is_splittable_entity(entity.type)) {
-      auto index = get_splittable_entity_type_index(entity.type);
-      part_splittable_entities[index].push_back(entity);
-      continue;
-    }
-    CHECK(is_continuous_entity(entity.type));
-
-    if (entity.offset > max_end) {
-      // found a gap from max_end to entity.offset between predetermined entities
-      add_part(entity.offset);
-    } else {
-      CHECK(entity.offset == max_end);
-    }
-
-    max_end = entity.offset + entity.length;
-    part_entities.push_back(entity);
-    part_entities.back().offset -= skipped_length;
-  }
-  add_part(part_begin + text_length(text));
-
-  return result;
-}
-
-static vector<MessageEntity> find_splittable_entities_v3(Slice text, const vector<MessageEntity> &entities) {
-  FlatHashSet<int32, Hash<int32>> unallowed_boundaries;
-  for (auto &entity : entities) {
-    unallowed_boundaries.insert(entity.offset + 1);
-    unallowed_boundaries.insert(entity.offset + entity.length + 1);
-    if (entity.type == MessageEntity::Type::Mention || entity.type == MessageEntity::Type::Hashtag ||
-        entity.type == MessageEntity::Type::BotCommand || entity.type == MessageEntity::Type::Cashtag ||
-        entity.type == MessageEntity::Type::PhoneNumber || entity.type == MessageEntity::Type::BankCardNumber) {
-      for (int32 i = 1; i < entity.length; i++) {
-        unallowed_boundaries.insert(entity.offset + i + 1);
-      }
-    }
-  }
-
-  auto found_entities = find_entities(text, false, true);
-  td::remove_if(found_entities, [](const auto &entity) {
-    return entity.type == MessageEntity::Type::EmailAddress || entity.type == MessageEntity::Type::Url;
-  });
-  for (auto &entity : found_entities) {
-    for (int32 i = 0; i <= entity.length; i++) {
-      unallowed_boundaries.insert(entity.offset + i + 1);
-    }
-  }
-
-  vector<MessageEntity> result;
-  int32 splittable_entity_offset[SPLITTABLE_ENTITY_TYPE_COUNT] = {};
-  int32 utf16_offset = 0;
-  for (size_t i = 0; i + 1 < text.size(); i++) {
-    auto c = static_cast<unsigned char>(text[i]);
-    if (is_utf8_character_first_code_unit(c)) {
-      utf16_offset += 1 + (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-    }
-    if ((c == '_' || c == '*' || c == '~' || c == '|') && text[i] == text[i + 1] &&
-        unallowed_boundaries.count(utf16_offset + 1) == 0) {
-      auto j = i + 2;
-      while (j != text.size() && text[j] == text[i] &&
-             unallowed_boundaries.count(utf16_offset + static_cast<int32>(j - i)) == 0) {
-        j++;
-      }
-      if (j == i + 2) {
-        auto type = [c] {
-          switch (c) {
-            case '_':
-              return MessageEntity::Type::Italic;
-            case '*':
-              return MessageEntity::Type::Bold;
-            case '~':
-              return MessageEntity::Type::Strikethrough;
-            case '|':
-              return MessageEntity::Type::Spoiler;
-            default:
-              UNREACHABLE();
-              return MessageEntity::Type::Size;
-          }
-        }();
-        auto index = get_splittable_entity_type_index(type);
-        if (splittable_entity_offset[index] != 0) {
-          auto length = utf16_offset - splittable_entity_offset[index] - 1;
-          if (length > 0) {
-            result.emplace_back(type, splittable_entity_offset[index], length);
-          }
-          splittable_entity_offset[index] = 0;
-        } else {
-          splittable_entity_offset[index] = utf16_offset + 1;
-        }
-      }
-      utf16_offset += narrow_cast<int32>(j - i - 1);
-      i = j - 1;
-    }
-  }
-  return result;
-}
-
-// entities must be valid and can contain only splittable and continuous entities
-// __italic__ ~~strikethrough~~ **bold** ||spoiler|| and [text_url](telegram.org) entities are left to be parsed
-static FormattedText parse_markdown_v3_without_pre(Slice text, vector<MessageEntity> entities) {
-  check_is_sorted(entities);
-
-  FormattedText parsed_text_url_text;
-  if (text.find('[') != string::npos) {
-    parsed_text_url_text = parse_text_url_entities_v3(text, entities);
-    text = parsed_text_url_text.text;
-    entities = std::move(parsed_text_url_text.entities);
-  }
-  // splittable entities are sorted only within a fixed type now
-
-  bool have_splittable_entities = false;
-  for (size_t i = 0; i + 1 < text.size(); i++) {
-    if ((text[i] == '_' || text[i] == '*' || text[i] == '~' || text[i] == '|') && text[i] == text[i + 1]) {
-      have_splittable_entities = true;
-      break;
-    }
-  }
-  if (!have_splittable_entities) {
-    // fast path
-    sort_entities(entities);
-    return {text.str(), std::move(entities)};
-  }
-
-  auto found_splittable_entities = find_splittable_entities_v3(text, entities);
-  vector<int32> removed_pos;
-  for (auto &entity : found_splittable_entities) {
-    removed_pos.push_back(entity.offset - 1);
-    removed_pos.push_back(entity.offset + entity.length + 1);
-  }
-  std::sort(removed_pos.begin(), removed_pos.end());
-
-  string new_text;
-  CHECK(text.size() >= 2 * removed_pos.size());
-  new_text.reserve(text.size() - 2 * removed_pos.size());
-  size_t j = 0;
-  int32 utf16_offset = 0;
-  for (size_t i = 0; i < text.size(); i++) {
-    auto c = static_cast<unsigned char>(text[i]);
-    if (is_utf8_character_first_code_unit(c)) {
-      utf16_offset += 1 + (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-    }
-    if (j < removed_pos.size() && utf16_offset == removed_pos[j]) {
-      i++;
-      utf16_offset++;
-      CHECK(j + 1 == removed_pos.size() || removed_pos[j + 1] >= removed_pos[j] + 2);
-      j++;
-    } else {
-      new_text += text[i];
-    }
-  }
-  CHECK(j == removed_pos.size());
-  combine(entities, std::move(found_splittable_entities));
-  for (auto &entity : entities) {
-    auto removed_before_begin = narrow_cast<int32>(
-        std::upper_bound(removed_pos.begin(), removed_pos.end(), entity.offset) - removed_pos.begin());
-    auto removed_before_end = narrow_cast<int32>(
-        std::upper_bound(removed_pos.begin(), removed_pos.end(), entity.offset + entity.length) - removed_pos.begin());
-    entity.length -= 2 * (removed_before_end - removed_before_begin);
-    entity.offset -= 2 * removed_before_begin;
-    CHECK(entity.offset >= 0);
-    CHECK(entity.length >= 0);
-    CHECK(entity.offset + entity.length <= utf16_offset);
-  }
-
-  remove_empty_entities(entities);
-
-  sort_entities(entities);
-  return {std::move(new_text), std::move(entities)};
-}
-
-static FormattedText parse_pre_entities_v3(Slice text) {
-  string result;
-  vector<MessageEntity> entities;
-  size_t size = text.size();
-  int32 utf16_offset = 0;
-  for (size_t i = 0; i < size; i++) {
-    auto c = static_cast<unsigned char>(text[i]);
-    if (c != '`') {
-      if (is_utf8_character_first_code_unit(c)) {
-        utf16_offset += 1 + (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-      }
-      result.push_back(text[i]);
-      continue;
-    }
-
-    size_t j = i + 1;
-    while (j < size && text[j] == '`') {
-      j++;
-    }
-
-    if (j - i == 1 || j - i == 3) {
-      // trying to find end of the entity
-      int32 entity_length = 0;
-      bool is_found = false;
-      for (size_t end_tag_begin = j; end_tag_begin < size; end_tag_begin++) {
-        auto cur_c = static_cast<unsigned char>(text[end_tag_begin]);
-        if (cur_c == '`') {
-          // possible end tag
-          size_t end_tag_end = end_tag_begin + 1;
-          while (end_tag_end < size && text[end_tag_end] == '`') {
-            end_tag_end++;
-          }
-          if (end_tag_end - end_tag_begin == j - i) {
-            // end tag found
-            CHECK(entity_length > 0);
-            auto entity_begin = j;
-            string language_code;
-            if (j - i == 3) {
-              size_t language_code_end = j;
-              while (language_code_end < end_tag_begin - 1 && 33 <= text[language_code_end] &&
-                     text[language_code_end] <= 126) {
-                language_code_end++;
-              }
-              if (language_code_end < end_tag_begin - 1 && text[language_code_end] == '\n') {
-                language_code = text.substr(entity_begin, language_code_end - entity_begin).str();
-                entity_begin = language_code_end + 1;
-                entity_length -= static_cast<int32>(entity_begin - j);
-                CHECK(entity_length > 0);
-              }
-            }
-            if (!language_code.empty()) {
-              entities.emplace_back(MessageEntity::Type::PreCode, utf16_offset, entity_length,
-                                    std::move(language_code));
-            } else {
-              entities.emplace_back(j - i == 3 ? MessageEntity::Type::Pre : MessageEntity::Type::Code, utf16_offset,
-                                    entity_length);
-            }
-            result.append(text.begin() + entity_begin, end_tag_begin - entity_begin);
-            utf16_offset += entity_length;
-            i = end_tag_end - 1;
-            is_found = true;
-            break;
-          } else {
-            // not an end tag, skip
-            entity_length += narrow_cast<int32>(end_tag_end - end_tag_begin);
-            end_tag_begin = end_tag_end - 1;
-          }
-        } else if (is_utf8_character_first_code_unit(cur_c)) {
-          entity_length += 1 + (cur_c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-        }
-      }
-      if (is_found) {
-        continue;
-      }
-    }
-
-    result.append(text.begin() + i, j - i);
-    utf16_offset += narrow_cast<int32>(j - i);
-    i = j - 1;
-  }
-  return {std::move(result), std::move(entities)};
-}
-
-// entities must be valid for the text
-static FormattedText parse_pre_entities_v3(Slice text, vector<MessageEntity> entities) {
-  // nothing can intersect pre entities, so ignore all '`' inside the predetermined entities
-  // and try to find new pre entities only between the predetermined entities
-
-  FormattedText result;
-  int32 result_text_utf16_length = 0;
-  int32 part_begin = 0;
-  int32 max_end = 0;
-  int32 skipped_length = 0;
-
-  auto add_part = [&](int32 part_end) {
-    // we have [part_begin, max_end) kept part and [max_end, part_end) part to parse pre entities
-    CHECK(part_begin == result_text_utf16_length + skipped_length);
-
-    if (max_end != part_begin) {
-      // add the kept part
-      auto kept_part_text = utf8_utf16_substr(text, 0, max_end - part_begin);
-      text = text.substr(kept_part_text.size());
-
-      result.text.append(kept_part_text.begin(), kept_part_text.size());
-      result_text_utf16_length += max_end - part_begin;
-    }
-
-    if (part_end != max_end) {
-      // try to find pre entities in the left part
-      auto parsed_part_text = utf8_utf16_substr(text, 0, part_end - max_end);
-      text = text.substr(parsed_part_text.size());
-
-      if (parsed_part_text.find('`') == string::npos) {
-        // fast path, no pre entities; just append the text
-        result.text.append(parsed_part_text.begin(), parsed_part_text.size());
-        result_text_utf16_length += part_end - max_end;
-      } else {
-        FormattedText parsed_text = parse_pre_entities_v3(parsed_part_text);
-        auto new_skipped_length = static_cast<int32>(parsed_part_text.size() - parsed_text.text.size());
-        CHECK(new_skipped_length < part_end - max_end);
-        result.text += parsed_text.text;
-        for (auto &entity : parsed_text.entities) {
-          entity.offset += result_text_utf16_length;
-        }
-        append(result.entities, std::move(parsed_text.entities));
-        result_text_utf16_length += part_end - max_end - new_skipped_length;
-        skipped_length += new_skipped_length;
-      }
-    }
-
-    part_begin = part_end;
-  };
-
-  for (auto &entity : entities) {
-    if (entity.offset > max_end) {
-      // found a gap from max_end to entity.offset between predetermined entities
-      add_part(entity.offset);
-    }
-
-    max_end = td::max(max_end, entity.offset + entity.length);
-    result.entities.push_back(std::move(entity));
-    result.entities.back().offset -= skipped_length;
-  }
-  add_part(part_begin + text_length(text));
-
-  return result;
-}
-
-// entities must be valid and can contain only splittable, continuous and pre entities
-static FormattedText parse_markdown_v3_without_blockquote(FormattedText text) {
-  if (text.text.find('`') != string::npos) {
-    text = parse_pre_entities_v3(text.text, std::move(text.entities));
-    check_is_sorted(text.entities);
-  }
-
-  bool have_pre = false;
-  for (auto &entity : text.entities) {
-    if (is_pre_entity(entity.type)) {
-      have_pre = true;
-      break;
-    }
-  }
-  if (!have_pre) {
-    // fast path
-    return parse_markdown_v3_without_pre(text.text, std::move(text.entities));
-  }
-
-  FormattedText result;
-  int32 result_text_utf16_length = 0;
-  vector<MessageEntity> part_entities;
-  int32 part_begin = 0;
-  int32 max_end = 0;
-  Slice left_text = text.text;
-
-  auto add_part = [&](int32 part_end) {
-    auto part_text = utf8_utf16_substr(left_text, 0, part_end - part_begin);
-    left_text = left_text.substr(part_text.size());
-
-    FormattedText part = parse_markdown_v3_without_pre(part_text, std::move(part_entities));
-    part_entities.clear();
-
-    result.text += part.text;
-    for (auto &entity : part.entities) {
-      entity.offset += result_text_utf16_length;
-    }
-    append(result.entities, std::move(part.entities));
-    result_text_utf16_length += text_length(part.text);
-    part_begin = part_end;
-  };
-
-  for (size_t i = 0; i < text.entities.size(); i++) {
-    auto &entity = text.entities[i];
-    CHECK(is_splittable_entity(entity.type) || is_pre_entity(entity.type) || is_continuous_entity(entity.type));
-    if (is_pre_entity(entity.type)) {
-      CHECK(entity.offset >= max_end);
-      CHECK(i + 1 == text.entities.size() || text.entities[i + 1].offset >= entity.offset + entity.length);
-
-      add_part(entity.offset);
-
-      auto part_text = utf8_utf16_substr(left_text, 0, entity.length);
-      left_text = left_text.substr(part_text.size());
-
-      result.text.append(part_text.begin(), part_text.size());
-      result.entities.push_back(entity);
-      result.entities.back().offset = result_text_utf16_length;
-      result_text_utf16_length += entity.length;
-      part_begin = entity.offset + entity.length;
-    } else {
-      CHECK(entity.offset >= part_begin);
-      part_entities.push_back(entity);
-      part_entities.back().offset -= part_begin;
-    }
-
-    max_end = td::max(max_end, entity.offset + entity.length);
-  }
-  add_part(part_begin + text_length(left_text));
-
-  return result;
-}
-
-// text entities must be valid
-// returned entities must be resplit and fixed
-FormattedText parse_markdown_v3(FormattedText text) {
-  bool have_blockquote = false;
-  for (auto &entity : text.entities) {
-    if (is_blockquote_entity(entity.type)) {
-      have_blockquote = true;
-      break;
-    }
-  }
-  if (!have_blockquote) {
-    // fast path
-    return parse_markdown_v3_without_blockquote(std::move(text));
-  }
-
-  FormattedText result;
-  int32 result_text_utf16_length = 0;
-  vector<MessageEntity> part_entities;
-  int32 part_begin = 0;
-  int32 max_end = 0;
-  Slice left_text = text.text;
-
-  auto add_part = [&](int32 part_end) {
-    auto part_text = utf8_utf16_substr(left_text, 0, part_end - part_begin);
-    left_text = left_text.substr(part_text.size());
-
-    FormattedText part = parse_markdown_v3_without_blockquote({part_text.str(), std::move(part_entities)});
-    part_entities.clear();
-
-    result.text += part.text;
-    for (auto &entity : part.entities) {
-      entity.offset += result_text_utf16_length;
-    }
-    append(result.entities, std::move(part.entities));
-    result_text_utf16_length += text_length(part.text);
-    part_begin = part_end;
-  };
-
-  for (size_t i = 0; i < text.entities.size(); i++) {
-    auto &entity = text.entities[i];
-    CHECK(is_splittable_entity(entity.type) || is_pre_entity(entity.type) || is_continuous_entity(entity.type) ||
-          is_blockquote_entity(entity.type));
-    if (is_blockquote_entity(entity.type)) {
-      CHECK(entity.offset >= max_end);
-
-      add_part(entity.offset);
-
-      auto offset = result_text_utf16_length;
-      result.entities.push_back(entity);
-      result.entities.back().offset = offset;
-      auto index = result.entities.size() - 1;
-
-      while (i + 1 < text.entities.size() &&
-             text.entities[i + 1].offset + text.entities[i + 1].length <= entity.offset + entity.length) {
-        i++;
-        auto &next_entity = text.entities[i];
-        CHECK(is_splittable_entity(next_entity.type) || is_pre_entity(next_entity.type) ||
-              is_continuous_entity(next_entity.type));
-        CHECK(next_entity.offset >= part_begin);
-        part_entities.push_back(next_entity);
-        part_entities.back().offset -= part_begin;
-      }
-      CHECK(i + 1 == text.entities.size() || text.entities[i + 1].offset >= entity.offset + entity.length);
-      add_part(entity.offset + entity.length);
-
-      result.entities[index].length = result_text_utf16_length - offset;
-    } else {
-      CHECK(entity.offset >= part_begin);
-      part_entities.push_back(entity);
-      part_entities.back().offset -= part_begin;
-    }
-
-    max_end = td::max(max_end, entity.offset + entity.length);
-  }
-  add_part(part_begin + text_length(left_text));
-
-  return result;
-}
-
-// text entities must be valid
-FormattedText get_markdown_v3(FormattedText text) {
-  if (text.entities.empty()) {
-    return text;
-  }
-
-  check_is_sorted(text.entities);
-  for (auto &entity : text.entities) {
-    if (!is_user_entity(entity.type)) {
-      return text;
-    }
-  }
-
-  FormattedText result;
-  struct EntityInfo {
-    const MessageEntity *entity;
-    int32 utf16_added_before;
-
-    EntityInfo(MessageEntity *entity, int32 utf16_added_before)
-        : entity(entity), utf16_added_before(utf16_added_before) {
-    }
-  };
-  vector<EntityInfo> nested_entities_stack;
-  size_t current_entity = 0;
-
-  int32 utf16_offset = 0;
-  int32 utf16_added = 0;
-
-  auto is_valid_language_code = [](Slice code) {
-    for (auto c : code) {
-      if (c < 33 || c > 126) {
-        return false;
-      }
-    }
-    return true;
-  };
-  for (size_t pos = 0; pos <= text.text.size(); pos++) {
-    auto c = static_cast<unsigned char>(text.text[pos]);
-    if (is_utf8_character_first_code_unit(c)) {
-      while (!nested_entities_stack.empty()) {
-        const auto *entity = nested_entities_stack.back().entity;
-        auto entity_end = entity->offset + entity->length;
-        if (utf16_offset < entity_end) {
-          break;
-        }
-
-        CHECK(utf16_offset == entity_end);
-
-        bool need_entity = false;
-        switch (entity->type) {
-          case MessageEntity::Type::Italic:
-            result.text += "__";
-            utf16_added += 2;
-            break;
-          case MessageEntity::Type::Bold:
-            result.text += "**";
-            utf16_added += 2;
-            break;
-          case MessageEntity::Type::Strikethrough:
-            result.text += "~~";
-            utf16_added += 2;
-            break;
-          case MessageEntity::Type::Spoiler:
-            result.text += "||";
-            utf16_added += 2;
-            break;
-          case MessageEntity::Type::TextUrl:
-            result.text += "](";
-            result.text += entity->argument;
-            result.text += ')';
-            utf16_added += narrow_cast<int32>(3 + entity->argument.size());
-            break;
-          case MessageEntity::Type::Code:
-            result.text += '`';
-            utf16_added++;
-            break;
-          case MessageEntity::Type::Pre:
-            result.text += "```";
-            utf16_added += 3;
-            break;
-          case MessageEntity::Type::PreCode:
-            if (is_valid_language_code(entity->argument)) {
-              result.text += "```";
-              utf16_added += 3;
-            } else {
-              need_entity = true;
-            }
-            break;
-          default:
-            need_entity = true;
-            break;
-        }
-        if (need_entity) {
-          result.entities.push_back(*entity);
-          result.entities.back().offset += nested_entities_stack.back().utf16_added_before;
-          result.entities.back().length += utf16_added - nested_entities_stack.back().utf16_added_before;
-        }
-        nested_entities_stack.pop_back();
-      }
-
-      while (current_entity < text.entities.size() && utf16_offset >= text.entities[current_entity].offset) {
-        CHECK(utf16_offset == text.entities[current_entity].offset);
-        switch (text.entities[current_entity].type) {
-          case MessageEntity::Type::Italic:
-            result.text += "__";
-            utf16_added += 2;
-            break;
-          case MessageEntity::Type::Bold:
-            result.text += "**";
-            utf16_added += 2;
-            break;
-          case MessageEntity::Type::Strikethrough:
-            result.text += "~~";
-            utf16_added += 2;
-            break;
-          case MessageEntity::Type::Spoiler:
-            result.text += "||";
-            utf16_added += 2;
-            break;
-          case MessageEntity::Type::TextUrl:
-            result.text += '[';
-            utf16_added++;
-            break;
-          case MessageEntity::Type::Code:
-            result.text += '`';
-            utf16_added++;
-            break;
-          case MessageEntity::Type::Pre:
-            result.text += "```";
-            utf16_added += 3;
-            if (c != '\n') {
-              result.text += "\n";
-              utf16_added++;
-            }
-            break;
-          case MessageEntity::Type::PreCode:
-            if (is_valid_language_code(text.entities[current_entity].argument)) {
-              result.text += "```";
-              utf16_added += 3;
-              if (!text.entities[current_entity].argument.empty()) {
-                result.text += text.entities[current_entity].argument;
-                utf16_added += static_cast<int32>(text.entities[current_entity].argument.size());
-              }
-              if (c != '\n') {
-                result.text += "\n";
-                utf16_added++;
-              }
-            }
-            break;
-          default:
-            // keep as is
-            break;
-        }
-        nested_entities_stack.emplace_back(&text.entities[current_entity++], utf16_added);
-      }
-      utf16_offset += 1 + (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-    }
-    if (pos == text.text.size()) {
-      break;
-    }
-
-    result.text.push_back(text.text[pos]);
-  }
-
-  sort_entities(result.entities);
-  if (parse_markdown_v3(result) != text) {
-    return text;
-  }
-  return result;
-}
-
-static uint32 decode_html_entity(CSlice text, size_t &pos) {
-  CHECK(text[pos] == '&');
-  size_t end_pos = pos + 1;
-  uint32 res = 0;
-  if (text[pos + 1] == '#') {
-    // numeric character reference
-    end_pos++;
-    if (text[pos + 2] == 'x') {
-      // hexadecimal numeric character reference
-      end_pos++;
-      while (is_hex_digit(text[end_pos])) {
-        res = res * 16 + hex_to_int(text[end_pos++]);
-      }
-    } else {
-      // decimal numeric character reference
-      while (is_digit(text[end_pos])) {
-        res = res * 10 + text[end_pos++] - '0';
-      }
-    }
-    if (res == 0 || res >= 0x10ffff || end_pos - pos >= 10) {
-      return 0;
-    }
-  } else {
-    while (is_alpha(text[end_pos])) {
-      end_pos++;
-    }
-    Slice entity = text.substr(pos + 1, end_pos - pos - 1);
-    if (entity == Slice("lt")) {
-      res = static_cast<uint32>('<');
-    } else if (entity == Slice("gt")) {
-      res = static_cast<uint32>('>');
-    } else if (entity == Slice("amp")) {
-      res = static_cast<uint32>('&');
-    } else if (entity == Slice("quot")) {
-      res = static_cast<uint32>('"');
-    } else {
-      // unsupported literal entity
-      return 0;
-    }
-  }
-
-  if (text[end_pos] == ';') {
-    pos = end_pos + 1;
-  } else {
-    pos = end_pos;
-  }
-  return res;
-}
-
-Result<vector<MessageEntity>> parse_html(string &str) {
-  auto str_size = str.size();
-  const char *text = str.c_str();
-  auto result_end = MutableSlice(str).ubegin();
-  const unsigned char *result_begin = result_end;
-
-  vector<MessageEntity> entities;
-  int32 utf16_offset = 0;
-  bool need_recheck_utf8 = false;
-
-  struct EntityInfo {
-    string tag_name;
-    string argument;
-    int32 entity_offset;
-    size_t entity_begin_pos;
-
-    EntityInfo(string &&tag_name, string &&argument, int32 entity_offset, size_t entity_begin_pos)
-        : tag_name(std::move(tag_name))
-        , argument(std::move(argument))
-        , entity_offset(entity_offset)
-        , entity_begin_pos(entity_begin_pos) {
-    }
-  };
-  vector<EntityInfo> nested_entities;
-
-  for (size_t i = 0; i < str_size; i++) {
-    auto c = static_cast<unsigned char>(text[i]);
-    if (c == '&') {
-      auto code = decode_html_entity(str, i);
-      if (code != 0) {
-        i--;  // i will be incremented in for
-        utf16_offset += 1 + (code > 0xffff);
-        if (code >= 0xd800 && code <= 0xdfff) {
-          // half of a surrogate pair
-          need_recheck_utf8 = true;
-        }
-        result_end = append_utf8_character_unsafe(result_end, code);
-        CHECK(result_end <= result_begin + i);
-        continue;
-      }
-    }
-    if (c != '<') {
-      if (is_utf8_character_first_code_unit(c)) {
-        utf16_offset += 1 + (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-      }
-      *result_end++ = c;
-      continue;
-    }
-
-    auto begin_pos = i++;
-    if (text[i] != '/') {
-      // begin of an entity
-      while (!is_space(text[i]) && text[i] != '>') {
-        i++;
-      }
-      if (text[i] == 0) {
-        return Status::Error(400, PSLICE() << "Unclosed start tag at byte offset " << begin_pos);
-      }
-
-      string tag_name = to_lower(Slice(text + begin_pos + 1, i - begin_pos - 1));
-      if (tag_name != "a" && tag_name != "b" && tag_name != "strong" && tag_name != "i" && tag_name != "em" &&
-          tag_name != "s" && tag_name != "strike" && tag_name != "del" && tag_name != "u" && tag_name != "ins" &&
-          tag_name != "tg-spoiler" && tag_name != "tg-emoji" && tag_name != "span" && tag_name != "pre" &&
-          tag_name != "code" && tag_name != "blockquote") {
-        return Status::Error(400, PSLICE()
-                                      << "Unsupported start tag \"" << tag_name << "\" at byte offset " << begin_pos);
-      }
-
-      string argument;
-      while (text[i] != '>') {
-        while (text[i] != 0 && is_space(text[i])) {
-          i++;
-        }
-        if (text[i] == '>') {
-          break;
-        }
-        auto attribute_begin_pos = i;
-        while (!is_space(text[i]) && text[i] != '=' && text[i] != '>' && text[i] != '/' && text[i] != '"' &&
-               text[i] != '\'') {
-          i++;
-        }
-        Slice attribute_name(text + attribute_begin_pos, i - attribute_begin_pos);
-        if (attribute_name.empty()) {
-          return Status::Error(
-              400, PSLICE() << "Empty attribute name in the tag \"" << tag_name << "\" at byte offset " << begin_pos);
-        }
-        while (text[i] != 0 && is_space(text[i])) {
-          i++;
-        }
-        if (text[i] != '=') {
-          if (text[i] == 0) {
-            return Status::Error(400, PSLICE()
-                                          << "Unclosed start tag \"" << tag_name << "\" at byte offset " << begin_pos);
-          }
-          if (tag_name == "blockquote" && attribute_name == Slice("expandable")) {
-            argument = "1";
-          }
-          continue;
-        }
-        i++;
-        while (text[i] != 0 && is_space(text[i])) {
-          i++;
-        }
-        if (text[i] == 0) {
-          return Status::Error(400, PSLICE()
-                                        << "Unclosed start tag \"" << tag_name << "\" at byte offset " << begin_pos);
-        }
-
-        string attribute_value;
-        if (text[i] != '\'' && text[i] != '"') {
-          // A name token (a sequence of letters, digits, periods, or hyphens). Name tokens are not case sensitive.
-          auto token_begin_pos = i;
-          while (is_alnum(text[i]) || text[i] == '.' || text[i] == '-') {
-            i++;
-          }
-          attribute_value = to_lower(Slice(text + token_begin_pos, i - token_begin_pos));
-
-          if (!is_space(text[i]) && text[i] != '>') {
-            return Status::Error(400, PSLICE() << "Unexpected end of name token at byte offset " << token_begin_pos);
-          }
-        } else {
-          // A string literal
-          char end_character = text[i++];
-          char *attribute_end = &str[i];
-          const char *attribute_begin = attribute_end;
-          while (text[i] != end_character && text[i] != 0) {
-            if (text[i] == '&') {
-              auto code = decode_html_entity(str, i);
-              if (code != 0) {
-                attribute_end = reinterpret_cast<char *>(
-                    append_utf8_character_unsafe(reinterpret_cast<unsigned char *>(attribute_end), code));
-                continue;
-              }
-            }
-            *attribute_end++ = text[i++];
-          }
-          if (text[i] == end_character) {
-            i++;
-          }
-          attribute_value.assign(attribute_begin, static_cast<size_t>(attribute_end - attribute_begin));
-        }
-        if (text[i] == 0) {
-          return Status::Error(400, PSLICE() << "Unclosed start tag at byte offset " << begin_pos);
-        }
-
-        if (tag_name == "a" && attribute_name == Slice("href")) {
-          argument = std::move(attribute_value);
-        } else if (tag_name == "code" && attribute_name == Slice("class") &&
-                   begins_with(attribute_value, "language-")) {
-          argument = attribute_value.substr(9);
-        } else if (tag_name == "span" && attribute_name == Slice("class") && begins_with(attribute_value, "tg-")) {
-          argument = attribute_value.substr(3);
-        } else if (tag_name == "tg-emoji" && attribute_name == Slice("emoji-id")) {
-          argument = std::move(attribute_value);
-        } else if (tag_name == "blockquote" && attribute_name == Slice("expandable")) {
-          argument = "1";
-        }
-      }
-
-      if (tag_name == "span" && argument != "spoiler") {
-        return Status::Error(400, PSLICE()
-                                      << "Tag \"span\" must have class \"tg-spoiler\" at byte offset " << begin_pos);
-      }
-
-      nested_entities.emplace_back(std::move(tag_name), std::move(argument), utf16_offset, result_end - result_begin);
-    } else {
-      // end of an entity
-      if (nested_entities.empty()) {
-        return Status::Error(400, PSLICE() << "Unexpected end tag at byte offset " << begin_pos);
-      }
-
-      while (!is_space(text[i]) && text[i] != '>') {
-        i++;
-      }
-      string end_tag_name = to_lower(Slice(text + begin_pos + 2, i - begin_pos - 2));
-      while (is_space(text[i]) && text[i] != 0) {
-        i++;
-      }
-      if (text[i] != '>') {
-        return Status::Error(400, PSLICE() << "Unclosed end tag at byte offset " << begin_pos);
-      }
-
-      const string &tag_name = nested_entities.back().tag_name;
-      if (!end_tag_name.empty() && end_tag_name != tag_name) {
-        return Status::Error(400, PSLICE() << "Unmatched end tag at byte offset " << begin_pos << ", expected \"</"
-                                           << tag_name << ">\", found \"</" << end_tag_name << ">\"");
-      }
-
-      if (utf16_offset > nested_entities.back().entity_offset) {
-        auto entity_offset = nested_entities.back().entity_offset;
-        auto entity_length = utf16_offset - entity_offset;
-        if (tag_name == "i" || tag_name == "em") {
-          entities.emplace_back(MessageEntity::Type::Italic, entity_offset, entity_length);
-        } else if (tag_name == "b" || tag_name == "strong") {
-          entities.emplace_back(MessageEntity::Type::Bold, entity_offset, entity_length);
-        } else if (tag_name == "s" || tag_name == "strike" || tag_name == "del") {
-          entities.emplace_back(MessageEntity::Type::Strikethrough, entity_offset, entity_length);
-        } else if (tag_name == "u" || tag_name == "ins") {
-          entities.emplace_back(MessageEntity::Type::Underline, entity_offset, entity_length);
-        } else if (tag_name == "tg-spoiler" || (tag_name == "span" && nested_entities.back().argument == "spoiler")) {
-          entities.emplace_back(MessageEntity::Type::Spoiler, entity_offset, entity_length);
-        } else if (tag_name == "tg-emoji") {
-          auto r_document_id = to_integer_safe<int64>(nested_entities.back().argument);
-          if (r_document_id.is_error() || r_document_id.ok() == 0) {
-            return Status::Error(400, "Invalid custom emoji identifier specified");
-          }
-          entities.emplace_back(MessageEntity::Type::CustomEmoji, entity_offset, entity_length,
-                                CustomEmojiId(r_document_id.ok()));
-        } else if (tag_name == "a") {
-          auto url = std::move(nested_entities.back().argument);
-          if (url.empty()) {
-            url = Slice(result_begin + nested_entities.back().entity_begin_pos, result_end).str();
-          }
-          auto user_id = LinkManager::get_link_user_id(url);
-          if (user_id.is_valid()) {
-            entities.emplace_back(entity_offset, entity_length, user_id);
-          } else {
-            url = LinkManager::get_checked_link(url);
-            if (!url.empty()) {
-              entities.emplace_back(MessageEntity::Type::TextUrl, entity_offset, entity_length, std::move(url));
-            }
-          }
-        } else if (tag_name == "pre") {
-          if (!entities.empty() && entities.back().type == MessageEntity::Type::Code &&
-              entities.back().offset == entity_offset && entities.back().length == entity_length &&
-              !entities.back().argument.empty()) {
-            entities.back().type = MessageEntity::Type::PreCode;
-          } else {
-            entities.emplace_back(MessageEntity::Type::Pre, entity_offset, entity_length);
-          }
-        } else if (tag_name == "code") {
-          if (!entities.empty() && entities.back().type == MessageEntity::Type::Pre &&
-              entities.back().offset == entity_offset && entities.back().length == entity_length &&
-              !nested_entities.back().argument.empty()) {
-            entities.back().type = MessageEntity::Type::PreCode;
-            entities.back().argument = std::move(nested_entities.back().argument);
-          } else {
-            entities.emplace_back(MessageEntity::Type::Code, entity_offset, entity_length,
-                                  nested_entities.back().argument);
-          }
-        } else if (tag_name == "blockquote") {
-          if (!nested_entities.back().argument.empty()) {
-            entities.emplace_back(MessageEntity::Type::ExpandableBlockQuote, entity_offset, entity_length);
-          } else {
-            entities.emplace_back(MessageEntity::Type::BlockQuote, entity_offset, entity_length);
-          }
-        } else {
-          UNREACHABLE();
-        }
-      }
-      nested_entities.pop_back();
-    }
-  }
-  if (!nested_entities.empty()) {
-    return Status::Error(
-        400, PSLICE() << "Can't find end tag corresponding to start tag \"" << nested_entities.back().tag_name << '"');
-  }
-
-  for (auto &entity : entities) {
-    if (entity.type == MessageEntity::Type::Code && !entity.argument.empty()) {
-      entity.argument.clear();
-    }
-  }
-
-  sort_entities(entities);
-
-  str.resize(static_cast<size_t>(result_end - result_begin));
-  if (need_recheck_utf8 && !check_utf8(str)) {
-    return Status::Error(400,
-                         "Text contains invalid Unicode characters after decoding HTML entities, check for unmatched "
-                         "surrogate code units");
-  }
-  return std::move(entities);
-}
-
-vector<tl_object_ptr<secret_api::MessageEntity>> get_input_secret_message_entities(
-    const vector<MessageEntity> &entities, int32 layer) {
-  vector<tl_object_ptr<secret_api::MessageEntity>> result;
-  for (auto &entity : entities) {
-    switch (entity.type) {
-      case MessageEntity::Type::Mention:
-        result.push_back(make_tl_object<secret_api::messageEntityMention>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Hashtag:
-        result.push_back(make_tl_object<secret_api::messageEntityHashtag>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Cashtag:
-        break;
-      case MessageEntity::Type::BotCommand:
-        break;
-      case MessageEntity::Type::PhoneNumber:
-        break;
-      case MessageEntity::Type::BankCardNumber:
-        break;
-      case MessageEntity::Type::Url:
-        result.push_back(make_tl_object<secret_api::messageEntityUrl>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::EmailAddress:
-        result.push_back(make_tl_object<secret_api::messageEntityEmail>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Bold:
-        result.push_back(make_tl_object<secret_api::messageEntityBold>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Italic:
-        result.push_back(make_tl_object<secret_api::messageEntityItalic>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Underline:
-        if (layer >= static_cast<int32>(SecretChatLayer::NewEntities)) {
-          result.push_back(make_tl_object<secret_api::messageEntityUnderline>(entity.offset, entity.length));
-        }
-        break;
-      case MessageEntity::Type::Strikethrough:
-        if (layer >= static_cast<int32>(SecretChatLayer::NewEntities)) {
-          result.push_back(make_tl_object<secret_api::messageEntityStrike>(entity.offset, entity.length));
-        }
-        break;
-      case MessageEntity::Type::BlockQuote:
-        if (layer >= static_cast<int32>(SecretChatLayer::NewEntities)) {
-          // result.push_back(make_tl_object<secret_api::messageEntityBlockquote>(0, false, entity.offset, entity.length));
-        }
-        break;
-      case MessageEntity::Type::Code:
-        result.push_back(make_tl_object<secret_api::messageEntityCode>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Pre:
-        result.push_back(make_tl_object<secret_api::messageEntityPre>(entity.offset, entity.length, string()));
-        break;
-      case MessageEntity::Type::PreCode:
-        result.push_back(make_tl_object<secret_api::messageEntityPre>(entity.offset, entity.length, entity.argument));
-        break;
-      case MessageEntity::Type::TextUrl:
-        result.push_back(
-            make_tl_object<secret_api::messageEntityTextUrl>(entity.offset, entity.length, entity.argument));
-        break;
-      case MessageEntity::Type::MentionName:
-        break;
-      case MessageEntity::Type::MediaTimestamp:
-        break;
-      case MessageEntity::Type::Spoiler:
-        if (layer >= static_cast<int32>(SecretChatLayer::SpoilerAndCustomEmojiEntities)) {
-          result.push_back(make_tl_object<secret_api::messageEntitySpoiler>(entity.offset, entity.length));
-        }
-        break;
-      case MessageEntity::Type::CustomEmoji:
-        if (layer >= static_cast<int32>(SecretChatLayer::SpoilerAndCustomEmojiEntities)) {
-          result.push_back(make_tl_object<secret_api::messageEntityCustomEmoji>(entity.offset, entity.length,
-                                                                                entity.custom_emoji_id.get()));
-        }
-        break;
-      case MessageEntity::Type::ExpandableBlockQuote:
-        if (layer >= static_cast<int32>(SecretChatLayer::NewEntities)) {
-          // result.push_back(make_tl_object<secret_api::messageEntityBlockquote>(0, true, entity.offset,
-          //     entity.length));
-        }
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  return result;
-}
-
-Result<vector<MessageEntity>> get_message_entities(const UserManager *user_manager,
-                                                   vector<tl_object_ptr<td_api::textEntity>> &&input_entities,
-                                                   bool allow_all) {
-  vector<MessageEntity> entities;
-  entities.reserve(input_entities.size());
-  for (auto &input_entity : input_entities) {
-    if (input_entity == nullptr || input_entity->type_ == nullptr) {
-      continue;
-    }
-
-    auto offset = input_entity->offset_;
-    auto length = input_entity->length_;
-    switch (input_entity->type_->get_id()) {
-      case td_api::textEntityTypeMention::ID:
-        entities.emplace_back(MessageEntity::Type::Mention, offset, length);
-        break;
-      case td_api::textEntityTypeHashtag::ID:
-        entities.emplace_back(MessageEntity::Type::Hashtag, offset, length);
-        break;
-      case td_api::textEntityTypeBotCommand::ID:
-        entities.emplace_back(MessageEntity::Type::BotCommand, offset, length);
-        break;
-      case td_api::textEntityTypeUrl::ID:
-        entities.emplace_back(MessageEntity::Type::Url, offset, length);
-        break;
-      case td_api::textEntityTypeEmailAddress::ID:
-        entities.emplace_back(MessageEntity::Type::EmailAddress, offset, length);
-        break;
-      case td_api::textEntityTypeCashtag::ID:
-        entities.emplace_back(MessageEntity::Type::Cashtag, offset, length);
-        break;
-      case td_api::textEntityTypePhoneNumber::ID:
-        entities.emplace_back(MessageEntity::Type::PhoneNumber, offset, length);
-        break;
-      case td_api::textEntityTypeBankCardNumber::ID:
-        entities.emplace_back(MessageEntity::Type::BankCardNumber, offset, length);
-        break;
-      case td_api::textEntityTypeBold::ID:
-        entities.emplace_back(MessageEntity::Type::Bold, offset, length);
-        break;
-      case td_api::textEntityTypeItalic::ID:
-        entities.emplace_back(MessageEntity::Type::Italic, offset, length);
-        break;
-      case td_api::textEntityTypeUnderline::ID:
-        entities.emplace_back(MessageEntity::Type::Underline, offset, length);
-        break;
-      case td_api::textEntityTypeStrikethrough::ID:
-        entities.emplace_back(MessageEntity::Type::Strikethrough, offset, length);
-        break;
-      case td_api::textEntityTypeBlockQuote::ID:
-        entities.emplace_back(MessageEntity::Type::BlockQuote, offset, length);
-        break;
-      case td_api::textEntityTypeCode::ID:
-        entities.emplace_back(MessageEntity::Type::Code, offset, length);
-        break;
-      case td_api::textEntityTypePre::ID:
-        entities.emplace_back(MessageEntity::Type::Pre, offset, length);
-        break;
-      case td_api::textEntityTypePreCode::ID: {
-        auto entity = static_cast<td_api::textEntityTypePreCode *>(input_entity->type_.get());
-        if (!clean_input_string(entity->language_)) {
-          return Status::Error(400, "MessageEntityPreCode.language must be encoded in UTF-8");
-        }
-        entities.emplace_back(MessageEntity::Type::PreCode, offset, length, entity->language_);
-        break;
-      }
-      case td_api::textEntityTypeTextUrl::ID: {
-        auto entity = static_cast<td_api::textEntityTypeTextUrl *>(input_entity->type_.get());
-        if (!clean_input_string(entity->url_)) {
-          return Status::Error(400, "MessageEntityTextUrl.url must be encoded in UTF-8");
-        }
-        auto user_id = LinkManager::get_link_user_id(entity->url_);
-        if (user_id.is_valid()) {
-          if (user_manager != nullptr) {
-            TRY_STATUS(user_manager->get_input_user(user_id));
-          }
-          entities.emplace_back(offset, length, user_id);
-          break;
-        }
-        auto r_url = LinkManager::check_link(entity->url_);
-        if (r_url.is_error()) {
-          return Status::Error(400, PSTRING() << "Entity " << r_url.error().message());
-        }
-        entities.emplace_back(MessageEntity::Type::TextUrl, offset, length, r_url.move_as_ok());
-        break;
-      }
-      case td_api::textEntityTypeMentionName::ID: {
-        auto entity = static_cast<const td_api::textEntityTypeMentionName *>(input_entity->type_.get());
-        UserId user_id(entity->user_id_);
-        if (user_manager != nullptr) {
-          TRY_STATUS(user_manager->get_input_user(user_id));
-        }
-        entities.emplace_back(offset, length, user_id);
-        break;
-      }
-      case td_api::textEntityTypeMediaTimestamp::ID: {
-        auto entity = static_cast<const td_api::textEntityTypeMediaTimestamp *>(input_entity->type_.get());
-        if (entity->media_timestamp_ < 0) {
-          return Status::Error(400, "Invalid media timestamp specified");
-        }
-        entities.emplace_back(MessageEntity::Type::MediaTimestamp, offset, length, entity->media_timestamp_);
-        break;
-      }
-      case td_api::textEntityTypeSpoiler::ID:
-        entities.emplace_back(MessageEntity::Type::Spoiler, offset, length);
-        break;
-      case td_api::textEntityTypeCustomEmoji::ID: {
-        auto entity = static_cast<const td_api::textEntityTypeCustomEmoji *>(input_entity->type_.get());
-        CustomEmojiId custom_emoji_id(entity->custom_emoji_id_);
-        if (!custom_emoji_id.is_valid()) {
-          return Status::Error(400, "Invalid custom emoji identifier specified");
-        }
-        entities.emplace_back(MessageEntity::Type::CustomEmoji, offset, length, custom_emoji_id);
-        break;
-      }
-      case td_api::textEntityTypeExpandableBlockQuote::ID:
-        entities.emplace_back(MessageEntity::Type::ExpandableBlockQuote, offset, length);
-        break;
-      default:
-        UNREACHABLE();
-    }
-    CHECK(!entities.empty());
-    if (!allow_all && !is_user_entity(entities.back().type)) {
-      entities.pop_back();
-    }
-  }
-  return std::move(entities);
-}
-
-vector<MessageEntity> get_message_entities(const UserManager *user_manager,
-                                           vector<tl_object_ptr<telegram_api::MessageEntity>> &&server_entities,
-                                           const char *source) {
-  vector<MessageEntity> entities;
-  entities.reserve(server_entities.size());
-  for (auto &server_entity : server_entities) {
-    switch (server_entity->get_id()) {
-      case telegram_api::messageEntityUnknown::ID:
-        break;
-      case telegram_api::messageEntityMention::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityMention *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Mention, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityHashtag::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityHashtag *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Hashtag, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityCashtag::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityCashtag *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Cashtag, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityPhone::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityPhone *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::PhoneNumber, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityBotCommand::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityBotCommand *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::BotCommand, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityBankCard::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityBankCard *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::BankCardNumber, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityUrl::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityUrl *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Url, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityEmail::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityEmail *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::EmailAddress, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityBold::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityBold *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Bold, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityItalic::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityItalic *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Italic, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityUnderline::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityUnderline *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Underline, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityStrike::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityStrike *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Strikethrough, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntitySpoiler::ID: {
-        auto entity = static_cast<const telegram_api::messageEntitySpoiler *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Spoiler, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityBlockquote::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityBlockquote *>(server_entity.get());
-        auto type = entity->collapsed_ ? MessageEntity::Type::ExpandableBlockQuote : MessageEntity::Type::BlockQuote;
-        entities.emplace_back(type, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityCode::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityCode *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::Code, entity->offset_, entity->length_);
-        break;
-      }
-      case telegram_api::messageEntityPre::ID: {
-        auto entity = static_cast<telegram_api::messageEntityPre *>(server_entity.get());
-        if (entity->language_.empty()) {
-          entities.emplace_back(MessageEntity::Type::Pre, entity->offset_, entity->length_);
-        } else {
-          entities.emplace_back(MessageEntity::Type::PreCode, entity->offset_, entity->length_,
-                                std::move(entity->language_));
-        }
-        break;
-      }
-      case telegram_api::messageEntityTextUrl::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityTextUrl *>(server_entity.get());
-        auto r_url = LinkManager::check_link(entity->url_);
-        if (r_url.is_error()) {
-          LOG(ERROR) << "Entity " << r_url.error().message() << " from " << source;
-          continue;
-        }
-        entities.emplace_back(MessageEntity::Type::TextUrl, entity->offset_, entity->length_, r_url.move_as_ok());
-        break;
-      }
-      case telegram_api::messageEntityMentionName::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityMentionName *>(server_entity.get());
-        UserId user_id(entity->user_id_);
-        if (!user_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid " << user_id << " in MentionName from " << source;
-          continue;
-        }
-        if (user_manager == nullptr) {
-          LOG(ERROR) << "Receive unknown " << user_id << " in MentionName from " << source;
-          continue;
-        }
-        if (!user_manager->have_min_user(user_id)) {
-          LOG(ERROR) << "Receive wrong " << user_id << " from " << source;
-          continue;
-        }
-        entities.emplace_back(entity->offset_, entity->length_, user_id);
-        break;
-      }
-      case telegram_api::messageEntityCustomEmoji::ID: {
-        auto entity = static_cast<const telegram_api::messageEntityCustomEmoji *>(server_entity.get());
-        entities.emplace_back(MessageEntity::Type::CustomEmoji, entity->offset_, entity->length_,
-                              CustomEmojiId(entity->document_id_));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-  return entities;
-}
-
-vector<MessageEntity> get_message_entities(Td *td, vector<tl_object_ptr<secret_api::MessageEntity>> &&secret_entities,
-                                           bool is_premium, MultiPromiseActor &load_data_multipromise) {
-  constexpr size_t MAX_SECRET_CHAT_ENTITIES = 1000;
-  constexpr size_t MAX_CUSTOM_EMOJI_ENTITIES = 100;
-  vector<MessageEntity> entities;
-  entities.reserve(secret_entities.size());
-  vector<CustomEmojiId> custom_emoji_ids;
-  for (auto &secret_entity : secret_entities) {
-    switch (secret_entity->get_id()) {
-      case secret_api::messageEntityUnknown::ID:
-        break;
-      case secret_api::messageEntityMention::ID:
-        // skip, will find it ourselves
-        break;
-      case secret_api::messageEntityHashtag::ID:
-        // skip, will find it ourselves
-        break;
-      case secret_api::messageEntityCashtag::ID:
-        // skip, will find it ourselves
-        break;
-      case secret_api::messageEntityPhone::ID:
-        // skip, will find it ourselves
-        break;
-      case secret_api::messageEntityBotCommand::ID:
-        // skip all bot commands in secret chats
-        break;
-      case secret_api::messageEntityBankCard::ID:
-        // skip, will find it ourselves
-        break;
-      case secret_api::messageEntityUrl::ID: {
-        auto entity = static_cast<const secret_api::messageEntityUrl *>(secret_entity.get());
-        // TODO skip URL when find_urls will be better
-        entities.emplace_back(MessageEntity::Type::Url, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityEmail::ID: {
-        auto entity = static_cast<const secret_api::messageEntityEmail *>(secret_entity.get());
-        // TODO skip emails when find_urls will be better
-        entities.emplace_back(MessageEntity::Type::EmailAddress, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityBold::ID: {
-        auto entity = static_cast<const secret_api::messageEntityBold *>(secret_entity.get());
-        entities.emplace_back(MessageEntity::Type::Bold, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityItalic::ID: {
-        auto entity = static_cast<const secret_api::messageEntityItalic *>(secret_entity.get());
-        entities.emplace_back(MessageEntity::Type::Italic, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityUnderline::ID: {
-        auto entity = static_cast<const secret_api::messageEntityUnderline *>(secret_entity.get());
-        entities.emplace_back(MessageEntity::Type::Underline, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityStrike::ID: {
-        auto entity = static_cast<const secret_api::messageEntityStrike *>(secret_entity.get());
-        entities.emplace_back(MessageEntity::Type::Strikethrough, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityBlockquote::ID: {
-        auto entity = static_cast<const secret_api::messageEntityBlockquote *>(secret_entity.get());
-        entities.emplace_back(MessageEntity::Type::BlockQuote, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityCode::ID: {
-        auto entity = static_cast<const secret_api::messageEntityCode *>(secret_entity.get());
-        entities.emplace_back(MessageEntity::Type::Code, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityPre::ID: {
-        auto entity = static_cast<secret_api::messageEntityPre *>(secret_entity.get());
-        if (!clean_input_string(entity->language_)) {
-          LOG(WARNING) << "Wrong language in entity: \"" << entity->language_ << '"';
-          entity->language_.clear();
-        }
-        if (entity->language_.empty()) {
-          entities.emplace_back(MessageEntity::Type::Pre, entity->offset_, entity->length_);
-        } else {
-          entities.emplace_back(MessageEntity::Type::PreCode, entity->offset_, entity->length_,
-                                std::move(entity->language_));
-        }
-        break;
-      }
-      case secret_api::messageEntityTextUrl::ID: {
-        auto entity = static_cast<secret_api::messageEntityTextUrl *>(secret_entity.get());
-        if (!clean_input_string(entity->url_)) {
-          LOG(WARNING) << "Wrong URL entity: \"" << entity->url_ << '"';
-          continue;
-        }
-        auto r_url = LinkManager::check_link(entity->url_);
-        if (r_url.is_error()) {
-          LOG(WARNING) << "Entity " << r_url.error().message();
-          continue;
-        }
-        entities.emplace_back(MessageEntity::Type::TextUrl, entity->offset_, entity->length_, r_url.move_as_ok());
-        break;
-      }
-      case secret_api::messageEntityMentionName::ID:
-        // skip all name mentions in secret chats
-        break;
-      case secret_api::messageEntitySpoiler::ID: {
-        auto entity = static_cast<const secret_api::messageEntitySpoiler *>(secret_entity.get());
-        entities.emplace_back(MessageEntity::Type::Spoiler, entity->offset_, entity->length_);
-        break;
-      }
-      case secret_api::messageEntityCustomEmoji::ID: {
-        auto entity = static_cast<const secret_api::messageEntityCustomEmoji *>(secret_entity.get());
-        CustomEmojiId custom_emoji_id(entity->document_id_);
-        if (is_premium || !td->stickers_manager_->is_premium_custom_emoji(custom_emoji_id, false)) {
-          if (custom_emoji_ids.size() < MAX_CUSTOM_EMOJI_ENTITIES) {
-            entities.emplace_back(MessageEntity::Type::CustomEmoji, entity->offset_, entity->length_, custom_emoji_id);
-            custom_emoji_ids.push_back(custom_emoji_id);
-          }
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    if (entities.size() >= MAX_SECRET_CHAT_ENTITIES) {
-      break;
-    }
-  }
-
-  if (!custom_emoji_ids.empty() && !is_premium) {
-    // preload custom emoji to check that they aren't premium
-    td->stickers_manager_->get_custom_emoji_stickers(
-        std::move(custom_emoji_ids), true,
-        PromiseCreator::lambda(
-            [promise = load_data_multipromise.get_promise()](td_api::object_ptr<td_api::stickers> result) mutable {
-              promise.set_value(Unit());
-            }));
-  }
-
-  return entities;
-}
-
-telegram_api::object_ptr<telegram_api::textWithEntities> get_input_text_with_entities(const UserManager *user_manager,
-                                                                                      const FormattedText &text,
-                                                                                      const char *source) {
-  return telegram_api::make_object<telegram_api::textWithEntities>(
-      text.text, get_input_message_entities(user_manager, text.entities, source));
-}
-
-FormattedText get_formatted_text(const UserManager *user_manager, string &&text,
-                                 vector<telegram_api::object_ptr<telegram_api::MessageEntity>> &&server_entities,
-                                 bool skip_media_timestamps, bool skip_trim, const char *source) {
-  auto entities = get_message_entities(user_manager, std::move(server_entities), source);
-  auto status = fix_formatted_text(text, entities, true, true, true, skip_media_timestamps, skip_trim);
-  if (status.is_error()) {
-    LOG(ERROR) << "Receive error " << status << " from " << source << " while parsing \"" << text << "\"("
-               << hex_encode(text) << ')';
-    if (!clean_input_string(text)) {
-      text.clear();
-    }
-    entities = find_entities(text, true, skip_media_timestamps);
-  }
-  return {std::move(text), std::move(entities)};
-}
-
-FormattedText get_formatted_text(const UserManager *user_manager,
-                                 telegram_api::object_ptr<telegram_api::textWithEntities> text_with_entities,
-                                 bool skip_media_timestamps, bool skip_trim, const char *source) {
-  if (text_with_entities == nullptr) {
-    return FormattedText();
-  }
-  return get_formatted_text(user_manager, std::move(text_with_entities->text_),
-                            std::move(text_with_entities->entities_), skip_media_timestamps, skip_trim, source);
-}
-
-// like clean_input_string but also fixes entities
-// entities must be sorted, can be nested, but must not intersect each other
-static Result<string> clean_input_string_with_entities(const string &text, vector<MessageEntity> &entities) {
-  check_is_sorted(entities);
-
-  struct EntityInfo {
-    MessageEntity *entity;
-    int32 utf16_skipped_before;
-
-    EntityInfo(MessageEntity *entity, int32 utf16_skipped_before)
-        : entity(entity), utf16_skipped_before(utf16_skipped_before) {
-    }
-  };
-  vector<EntityInfo> nested_entities_stack;
-  size_t current_entity = 0;
-
-  int32 utf16_offset = 0;
-  int32 utf16_skipped = 0;
-
-  size_t text_size = text.size();
-
-  string result;
-  result.reserve(text_size);
-  for (size_t pos = 0; pos <= text_size; pos++) {
-    auto c = static_cast<unsigned char>(text[pos]);
-    bool is_utf8_character_begin = is_utf8_character_first_code_unit(c);
-    if (is_utf8_character_begin) {
-      while (!nested_entities_stack.empty()) {
-        auto *entity = nested_entities_stack.back().entity;
-        auto entity_end = entity->offset + entity->length;
-        if (utf16_offset < entity_end) {
-          break;
-        }
-
-        if (utf16_offset != entity_end) {
-          CHECK(utf16_offset == entity_end + 1);
-          return Status::Error(400, PSLICE() << "Entity beginning at UTF-16 offset " << entity->offset
-                                             << " ends in a middle of a UTF-16 symbol at byte offset " << pos);
-        }
-
-        auto skipped_before_current_entity = nested_entities_stack.back().utf16_skipped_before;
-        entity->offset -= skipped_before_current_entity;
-        entity->length -= utf16_skipped - skipped_before_current_entity;
-        nested_entities_stack.pop_back();
-      }
-      while (current_entity < entities.size() && utf16_offset >= entities[current_entity].offset) {
-        if (utf16_offset != entities[current_entity].offset) {
-          CHECK(utf16_offset == entities[current_entity].offset + 1);
-          return Status::Error(400, PSLICE() << "Entity begins in a middle of a UTF-16 symbol at byte offset " << pos);
-        }
-        nested_entities_stack.emplace_back(&entities[current_entity++], utf16_skipped);
-      }
-    }
-    if (pos == text_size) {
-      break;
-    }
-
-    switch (c) {
-      // remove control characters
-      case 0:
-      case 1:
-      case 2:
-      case 3:
-      case 4:
-      case 5:
-      case 6:
-      case 7:
-      case 8:
-      case 9:
-      // allow '\n'
-      case 11:
-      case 12:
-      // ignore '\r'
-      case 14:
-      case 15:
-      case 16:
-      case 17:
-      case 18:
-      case 19:
-      case 20:
-      case 21:
-      case 22:
-      case 23:
-      case 24:
-      case 25:
-      case 26:
-      case 27:
-      case 28:
-      case 29:
-      case 30:
-      case 31:
-      case 32:
-        result.push_back(' ');
-        utf16_offset++;
-        break;
-      case '\r':
-        // skip
-        utf16_offset++;
-        utf16_skipped++;
-        break;
-      default:
-        if (is_utf8_character_begin) {
-          utf16_offset += 1 + (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-        }
-        if (c == 0xe2 && pos + 2 < text_size) {
-          auto next = static_cast<unsigned char>(text[pos + 1]);
-          if (next == 0x80) {
-            next = static_cast<unsigned char>(text[pos + 2]);
-            if (0xa8 <= next && next <= 0xae) {
-              pos += 2;
-              utf16_skipped++;
-              break;
-            }
-          }
-        }
-        if (c == 0xcc && pos + 1 < text_size) {
-          auto next = static_cast<unsigned char>(text[pos + 1]);
-          // remove vertical lines
-          if (next == 0xb3 || next == 0xbf || next == 0x8a) {
-            pos++;
-            utf16_skipped++;
-            break;
-          }
-        }
-
-        result.push_back(text[pos]);
-        break;
-    }
-  }
-
-  if (current_entity != entities.size()) {
-    return Status::Error(400, PSLICE() << "Entity begins after the end of the text at UTF-16 offset "
-                                       << entities[current_entity].offset);
-  }
-  if (!nested_entities_stack.empty()) {
-    auto *entity = nested_entities_stack.back().entity;
-    return Status::Error(400, PSLICE() << "Entity beginning at UTF-16 offset " << entity->offset
-                                       << " ends after the end of the text at UTF-16 offset "
-                                       << entity->offset + entity->length);
-  }
-
-  replace_offending_characters(result);
-  return result;
-}
-
-// removes empty entities
-// entities must be sorted by offset and length, but not necessary by type
-// returns {last_non_whitespace_pos, last_non_whitespace_utf16_offset}
-static std::pair<size_t, int32> remove_invalid_entities(const string &text, vector<MessageEntity> &entities) {
-  if (entities.empty()) {
-    // fast path
-    for (size_t pos = 0; pos < text.size(); pos++) {
-      auto back_pos = text.size() - pos - 1;
-      auto c = text[back_pos];
-      if (c != '\n' && c != ' ') {
-        return {back_pos, 0 /*unused*/};
-      }
-    }
-
-    return {text.size(), -1};
-  }
-
-  // check_is_sorted(entities);
-
-  size_t last_non_whitespace_pos = text.size();
-
-  int32 utf16_offset = 0;
-  int32 last_non_whitespace_utf16_offset = -1;
-
-  remove_empty_entities(entities);
-
-  for (size_t pos = 0; pos < text.size(); pos++) {
-    auto c = static_cast<unsigned char>(text[pos]);
-    switch (c) {
-      case '\n':
-      case 32:
-        break;
-      default:
-        while (!is_utf8_character_first_code_unit(static_cast<unsigned char>(text[pos + 1]))) {
-          pos++;
-        }
-        utf16_offset += (c >= 0xf0);  // >= 4 bytes in symbol => surrogate pair
-        last_non_whitespace_pos = pos;
-        last_non_whitespace_utf16_offset = utf16_offset;
-        break;
-    }
-
-    utf16_offset++;
-  }
-  return {last_non_whitespace_pos, last_non_whitespace_utf16_offset};
-}
-
-// entities must contain only splittable entities
-static void split_entities(vector<MessageEntity> &entities, const vector<MessageEntity> &other_entities) {
-  check_is_sorted(entities);
-  check_is_sorted(other_entities);
-
-  int32 begin_pos[SPLITTABLE_ENTITY_TYPE_COUNT] = {};
-  int32 end_pos[SPLITTABLE_ENTITY_TYPE_COUNT] = {};
-  auto it = entities.begin();
-  vector<MessageEntity> result;
-  auto add_entities = [&](int32 end_offset) {
-    auto flush_entities = [&](int32 offset) {
-      for (auto type : {MessageEntity::Type::Bold, MessageEntity::Type::Italic, MessageEntity::Type::Underline,
-                        MessageEntity::Type::Strikethrough, MessageEntity::Type::Spoiler}) {
-        auto index = get_splittable_entity_type_index(type);
-        if (end_pos[index] != 0 && begin_pos[index] < offset) {
-          if (end_pos[index] <= offset) {
-            result.emplace_back(type, begin_pos[index], end_pos[index] - begin_pos[index]);
-            begin_pos[index] = 0;
-            end_pos[index] = 0;
-          } else {
-            result.emplace_back(type, begin_pos[index], offset - begin_pos[index]);
-            begin_pos[index] = offset;
-          }
-        }
-      }
-    };
-
-    while (it != entities.end()) {
-      if (it->offset >= end_offset) {
-        break;
-      }
-      CHECK(is_splittable_entity(it->type));
-      auto index = get_splittable_entity_type_index(it->type);
-      if (it->offset <= end_pos[index] && end_pos[index] != 0) {
-        if (it->offset + it->length > end_pos[index]) {
-          end_pos[index] = it->offset + it->length;
-        }
-      } else {
-        flush_entities(it->offset);
-        begin_pos[index] = it->offset;
-        end_pos[index] = it->offset + it->length;
-      }
-      ++it;
-    }
-    flush_entities(end_offset);
-  };
-
-  vector<const MessageEntity *> nested_entities_stack;
-  auto add_offset = [&](int32 offset) {
-    while (!nested_entities_stack.empty() &&
-           offset >= nested_entities_stack.back()->offset + nested_entities_stack.back()->length) {
-      // remove non-intersecting entities from the stack
-      auto old_size = result.size();
-      add_entities(nested_entities_stack.back()->offset + nested_entities_stack.back()->length);
-      if (is_pre_entity(nested_entities_stack.back()->type)) {
-        result.resize(old_size);
-      }
-      nested_entities_stack.pop_back();
-    }
-
-    add_entities(offset);
-  };
-  for (auto &other_entity : other_entities) {
-    add_offset(other_entity.offset);
-    nested_entities_stack.push_back(&other_entity);
-  }
-  add_offset(std::numeric_limits<int32>::max());
-
-  entities = std::move(result);
-
-  // entities are sorted only by offset now, re-sort if needed
-  sort_entities(entities);
-}
-
-static vector<MessageEntity> resplit_entities(vector<MessageEntity> &&splittable_entities,
-                                              vector<MessageEntity> &&entities) {
-  if (!splittable_entities.empty()) {
-    split_entities(splittable_entities, entities);  // can merge some entities
-
-    if (entities.empty()) {
-      return std::move(splittable_entities);
-    }
-
-    combine(entities, std::move(splittable_entities));
-    sort_entities(entities);
-  }
-  return std::move(entities);
-}
-
-void fix_entities(vector<MessageEntity> &entities) {
-  sort_entities(entities);
-
-  if (are_entities_valid(entities)) {
-    // fast path
-    return;
-  }
-
-  vector<MessageEntity> continuous_entities;
-  vector<MessageEntity> blockquote_entities;
-  vector<MessageEntity> splittable_entities;
-  for (auto &entity : entities) {
-    if (is_splittable_entity(entity.type)) {
-      splittable_entities.push_back(std::move(entity));
-    } else if (is_blockquote_entity(entity.type)) {
-      blockquote_entities.push_back(std::move(entity));
-    } else {
-      continuous_entities.push_back(std::move(entity));
-    }
-  }
-  remove_intersecting_entities(continuous_entities);  // continuous entities can't intersect each other
-
-  if (!blockquote_entities.empty()) {
-    remove_intersecting_entities(blockquote_entities);  // blockquote entities can't intersect each other
-
-    // blockquote entities can contain continuous entities, but can't intersect them in the other ways
-    remove_entities_intersecting_blockquote(continuous_entities, blockquote_entities);
-
-    combine(continuous_entities, std::move(blockquote_entities));
-    sort_entities(continuous_entities);
-  }
-
-  // must be called once to not merge some adjacent entities
-  entities = resplit_entities(std::move(splittable_entities), std::move(continuous_entities));
-  check_is_sorted(entities);
-}
-
-static void merge_new_entities(vector<MessageEntity> &entities, vector<MessageEntity> new_entities) {
-  check_is_sorted(entities);
-  if (new_entities.empty()) {
-    // fast path
-    return;
-  }
-
-  check_non_intersecting(new_entities);
-
-  vector<MessageEntity> continuous_entities;
-  vector<MessageEntity> blockquote_entities;
-  vector<MessageEntity> splittable_entities;
-  for (auto &entity : entities) {
-    if (is_splittable_entity(entity.type)) {
-      splittable_entities.push_back(std::move(entity));
-    } else if (is_blockquote_entity(entity.type)) {
-      blockquote_entities.push_back(std::move(entity));
-    } else {
-      continuous_entities.push_back(std::move(entity));
-    }
-  }
-
-  remove_entities_intersecting_blockquote(new_entities, blockquote_entities);
-
-  // merge before combining with blockquote entities
-  continuous_entities = merge_entities(std::move(continuous_entities), std::move(new_entities));
-
-  if (!blockquote_entities.empty()) {
-    combine(continuous_entities, std::move(blockquote_entities));
-    sort_entities(continuous_entities);
-  }
-
-  // must be called once to not merge some adjacent entities
-  entities = resplit_entities(std::move(splittable_entities), std::move(continuous_entities));
-  check_is_sorted(entities);
-}
-
-Status fix_formatted_text(string &text, vector<MessageEntity> &entities, bool allow_empty, bool skip_new_entities,
-                          bool skip_bot_commands, bool skip_media_timestamps, bool skip_trim, int32 *ltrim_count) {
-  string result;
-  if (entities.empty()) {
-    // fast path
-    if (!clean_input_string(text)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-    result = std::move(text);
-  } else {
-    if (!check_utf8(text)) {
-      return Status::Error(400, "Strings must be encoded in UTF-8");
-    }
-
-    for (auto &entity : entities) {
-      if (entity.offset < 0 || entity.offset > 1000000) {
-        return Status::Error(400, PSLICE() << "Receive an entity with incorrect offset " << entity.offset);
-      }
-      if (entity.length < 0 || entity.length > 1000000) {
-        return Status::Error(400, PSLICE() << "Receive an entity with incorrect length " << entity.length);
-      }
-    }
-    remove_empty_entities(entities);
-
-    fix_entities(entities);
-
-    TRY_RESULT_ASSIGN(result, clean_input_string_with_entities(text, entities));
-  }
-
-  // now entities are still sorted by offset and length, but not type,
-  // because some characters could be deleted and after that some entities begin to share a common end
-
-  size_t last_non_whitespace_pos;
-  int32 last_non_whitespace_utf16_offset;
-  std::tie(last_non_whitespace_pos, last_non_whitespace_utf16_offset) = remove_invalid_entities(result, entities);
-  if (last_non_whitespace_utf16_offset == -1) {
-    if (allow_empty) {
-      text.clear();
-      entities.clear();
-      return Status::OK();
-    }
-    return Status::Error(400, "Text must be non-empty");
-  }
-
-  // re-fix entities if needed after removal of some characters
-  // the sort order can be incorrect by type
-  // some splittable entities may be needed to be concatenated
-  fix_entities(entities);
-
-  if (ltrim_count != nullptr) {
-    *ltrim_count = 0;
-  }
-  if (skip_trim) {
-    text = std::move(result);
-  } else {
-    // rtrim
-    CHECK(last_non_whitespace_pos < result.size());
-    result.resize(last_non_whitespace_pos + 1);
-    while (!entities.empty() && entities.back().offset > last_non_whitespace_utf16_offset) {
-      entities.pop_back();
-    }
-    bool need_sort = false;
-    for (auto &entity : entities) {
-      if (entity.offset + entity.length > last_non_whitespace_utf16_offset + 1) {
-        entity.length = last_non_whitespace_utf16_offset + 1 - entity.offset;
-        need_sort = true;
-        CHECK(entity.length > 0);
-      }
-    }
-    if (need_sort) {
-      sort_entities(entities);
-    }
-
-    // ltrim
-    size_t first_non_whitespaces_pos = 0;
-    size_t first_entity_begin_pos = entities.empty() ? result.size() : entities[0].offset;
-    while (first_non_whitespaces_pos < first_entity_begin_pos &&
-           (result[first_non_whitespaces_pos] == ' ' || result[first_non_whitespaces_pos] == '\n')) {
-      first_non_whitespaces_pos++;
-    }
-    if (first_non_whitespaces_pos > 0) {
-      auto offset = narrow_cast<int32>(first_non_whitespaces_pos);
-      if (ltrim_count != nullptr) {
-        *ltrim_count = offset;
-      }
-      text = result.substr(first_non_whitespaces_pos);
-      for (auto &entity : entities) {
-        entity.offset -= offset;
-        CHECK(entity.offset >= 0);
-      }
-    } else {
-      text = std::move(result);
-    }
-  }
-  LOG_CHECK(check_utf8(text)) << text;
-
-  if (is_empty_string(text)) {
-    if (!allow_empty) {
-      return Status::Error(400, "Text must be non-empty");
-    }
-    text.clear();
-    entities.clear();
-  }
-
-  constexpr size_t LENGTH_LIMIT = 35000;  // server side limit
-  if (text.size() > LENGTH_LIMIT) {
-    size_t new_size = LENGTH_LIMIT;
-    while (!is_utf8_character_first_code_unit(text[new_size])) {
-      new_size--;
-    }
-    text.resize(new_size);
-
-    td::remove_if(entities, [text_utf16_length = text_length(text)](const auto &entity) {
-      return entity.offset + entity.length > text_utf16_length;
-    });
-  }
-
-  if (!skip_new_entities) {
-    merge_new_entities(entities, find_entities(text, skip_bot_commands, skip_media_timestamps));
-  } else if (!skip_media_timestamps) {
-    merge_new_entities(entities, find_media_timestamp_entities(text));
-  }
-
-  return Status::OK();
-}
-
-FormattedText get_message_text(const UserManager *user_manager, string message_text,
-                               vector<tl_object_ptr<telegram_api::MessageEntity>> &&server_entities,
-                               bool skip_new_entities, bool skip_media_timestamps, int32 send_date, bool from_album,
-                               const char *source) {
-  auto entities = get_message_entities(user_manager, std::move(server_entities), source);
-  auto debug_message_text = message_text;
-  auto debug_entities = entities;
-  auto status = fix_formatted_text(message_text, entities, true, skip_new_entities, true, skip_media_timestamps, false);
-  if (status.is_error()) {
-    // message entities in media albums can be wrong because of a long time ago fixed server-side bug
-    if (!from_album && (send_date == 0 || send_date > 1600340000)) {  // approximate fix date
-      LOG(ERROR) << "Receive error " << status << " while parsing message text from " << source << " sent at "
-                 << send_date << " with content \"" << debug_message_text << "\" -> \"" << message_text
-                 << "\" with entities " << debug_entities << " -> " << entities;
-    }
-    if (!clean_input_string(message_text)) {
-      message_text.clear();
-    }
-    entities = find_entities(message_text, false, skip_media_timestamps);
-  }
-  return FormattedText{std::move(message_text), std::move(entities)};
-}
-
-void truncate_formatted_text(FormattedText &text, size_t length) {
-  auto result_size = utf8_truncate(Slice(text.text), length).size();
-  if (result_size == text.text.size()) {
-    return;
-  }
-  text.text.resize(result_size);
-  auto utf16_length = narrow_cast<int32>(utf8_utf16_length(text.text));
-  for (auto &entity : text.entities) {
-    if (entity.offset + entity.length > utf16_length) {
-      if (entity.offset >= utf16_length || is_continuous_entity(entity.type)) {
-        entity.length = 0;
-        continue;
-      }
-      entity.length = utf16_length - entity.offset;  // truncate the entity
-    }
-  }
-  remove_empty_entities(text.entities);
-}
-
-Result<FormattedText> get_formatted_text(const Td *td, DialogId dialog_id,
-                                         td_api::object_ptr<td_api::formattedText> &&text, bool is_bot,
-                                         bool allow_empty, bool skip_media_timestamps, bool skip_trim,
-                                         int32 *ltrim_count) {
-  if (text == nullptr) {
-    if (allow_empty) {
-      return FormattedText();
-    }
-
-    return Status::Error(400, "Text must be non-empty");
-  }
-
-  TRY_RESULT(entities, get_message_entities(td->user_manager_.get(), std::move(text->entities_)));
-  auto need_skip_bot_commands = need_always_skip_bot_commands(td->user_manager_.get(), dialog_id, is_bot);
-  bool parse_markdown = td->option_manager_->get_option_boolean("always_parse_markdown");
-  bool skip_new_entities = is_bot && td->option_manager_->get_option_integer("session_count") > 1;
-  TRY_STATUS(fix_formatted_text(text->text_, entities, allow_empty, skip_new_entities || parse_markdown,
-                                skip_new_entities || need_skip_bot_commands,
-                                is_bot || skip_media_timestamps || parse_markdown, skip_trim, ltrim_count));
-
-  FormattedText result{std::move(text->text_), std::move(entities)};
-  if (parse_markdown) {
-    result = parse_markdown_v3(std::move(result));
-    fix_formatted_text(result.text, result.entities, allow_empty, false, need_skip_bot_commands,
-                       is_bot || skip_media_timestamps, skip_trim, nullptr)
-        .ensure();
-  }
-  remove_unallowed_entities(td, result, dialog_id);
-  return std::move(result);
-}
-
-void add_formatted_text_dependencies(Dependencies &dependencies, const FormattedText *text) {
-  if (text == nullptr) {
-    return;
-  }
-  for (auto &entity : text->entities) {
-    dependencies.add(entity.user_id);
-  }
-}
-
-bool has_media_timestamps(const FormattedText *text, int32 min_media_timestamp, int32 max_media_timestamp) {
-  if (text == nullptr) {
-    return false;
-  }
-  for (auto &entity : text->entities) {
-    if (entity.type == MessageEntity::Type::MediaTimestamp && min_media_timestamp <= entity.media_timestamp &&
-        entity.media_timestamp <= max_media_timestamp) {
-      return true;
-    }
-  }
-  return false;
-}
-
-bool has_bot_commands(const FormattedText *text) {
-  if (text == nullptr) {
-    return false;
-  }
-  for (auto &entity : text->entities) {
-    if (entity.type == MessageEntity::Type::BotCommand) {
-      return true;
-    }
-  }
-  return false;
-}
-
-bool need_always_skip_bot_commands(const UserManager *user_manager, DialogId dialog_id, bool is_bot) {
-  if (!dialog_id.is_valid()) {
-    return true;
-  }
-  if (is_bot) {
-    return false;
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      auto user_id = dialog_id.get_user_id();
-      return user_id == UserManager::get_replies_bot_user_id() ||
-             user_id == UserManager::get_verification_codes_bot_user_id() || !user_manager->is_user_bot(user_id);
-    }
-    case DialogType::SecretChat: {
-      auto user_id = user_manager->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      return !user_id.is_valid() || !user_manager->is_user_bot(user_id);
-    }
-    case DialogType::Chat:
-    case DialogType::Channel:
-    case DialogType::None:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-vector<tl_object_ptr<telegram_api::MessageEntity>> get_input_message_entities(const UserManager *user_manager,
-                                                                              const vector<MessageEntity> &entities,
-                                                                              const char *source) {
-  vector<tl_object_ptr<telegram_api::MessageEntity>> result;
-  vector<MessageEntity> splittable_entities;
-  constexpr size_t MAX_USER_ENTITY_COUNT = 100;  // server-side limit
-  size_t user_entity_count = 0;
-  for (auto &entity : entities) {
-    if (!is_user_entity(entity.type)) {
-      continue;
-    }
-    if (is_splittable_entity(entity.type)) {
-      splittable_entities.push_back(entity);
-      continue;
-    }
-    if (entity.type == MessageEntity::Type::CustomEmoji) {
-      result.push_back(make_tl_object<telegram_api::messageEntityCustomEmoji>(entity.offset, entity.length,
-                                                                              entity.custom_emoji_id.get()));
-      continue;
-    }
-    if (user_entity_count >= MAX_USER_ENTITY_COUNT) {
-      continue;
-    }
-    user_entity_count++;
-    switch (entity.type) {
-      case MessageEntity::Type::BlockQuote:
-        result.push_back(make_tl_object<telegram_api::messageEntityBlockquote>(0, false, entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Code:
-        result.push_back(make_tl_object<telegram_api::messageEntityCode>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Pre:
-        result.push_back(make_tl_object<telegram_api::messageEntityPre>(entity.offset, entity.length, string()));
-        break;
-      case MessageEntity::Type::PreCode:
-        result.push_back(make_tl_object<telegram_api::messageEntityPre>(entity.offset, entity.length, entity.argument));
-        break;
-      case MessageEntity::Type::TextUrl:
-        result.push_back(
-            make_tl_object<telegram_api::messageEntityTextUrl>(entity.offset, entity.length, entity.argument));
-        break;
-      case MessageEntity::Type::MentionName: {
-        CHECK(user_manager != nullptr);
-        auto input_user = user_manager->get_input_user_force(entity.user_id);
-        result.push_back(make_tl_object<telegram_api::inputMessageEntityMentionName>(entity.offset, entity.length,
-                                                                                     std::move(input_user)));
-        break;
-      }
-      case MessageEntity::Type::ExpandableBlockQuote:
-        result.push_back(make_tl_object<telegram_api::messageEntityBlockquote>(0, true, entity.offset, entity.length));
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-  split_entities(splittable_entities, vector<MessageEntity>());
-  for (auto &entity : splittable_entities) {
-    if (user_entity_count >= MAX_USER_ENTITY_COUNT) {
-      break;
-    }
-    user_entity_count++;
-
-    switch (entity.type) {
-      case MessageEntity::Type::Bold:
-        result.push_back(make_tl_object<telegram_api::messageEntityBold>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Italic:
-        result.push_back(make_tl_object<telegram_api::messageEntityItalic>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Underline:
-        result.push_back(make_tl_object<telegram_api::messageEntityUnderline>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Strikethrough:
-        result.push_back(make_tl_object<telegram_api::messageEntityStrike>(entity.offset, entity.length));
-        break;
-      case MessageEntity::Type::Spoiler:
-        result.push_back(make_tl_object<telegram_api::messageEntitySpoiler>(entity.offset, entity.length));
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  return result;
-}
-
-vector<tl_object_ptr<telegram_api::MessageEntity>> get_input_message_entities(const UserManager *user_manager,
-                                                                              const FormattedText *text,
-                                                                              const char *source) {
-  if (text != nullptr && !text->entities.empty()) {
-    return get_input_message_entities(user_manager, text->entities, source);
-  }
-  return {};
-}
-
-void keep_only_custom_emoji(FormattedText &text) {
-  td::remove_if(text.entities,
-                [&](const MessageEntity &entity) { return entity.type != MessageEntity::Type::CustomEmoji; });
-}
-
-void remove_premium_custom_emoji_entities(const Td *td, vector<MessageEntity> &entities, bool remove_unknown) {
-  td::remove_if(entities, [&](const MessageEntity &entity) {
-    return entity.type == MessageEntity::Type::CustomEmoji &&
-           td->stickers_manager_->is_premium_custom_emoji(entity.custom_emoji_id, remove_unknown);
-  });
-}
-
-void remove_unallowed_entities(const Td *td, FormattedText &text, DialogId dialog_id) {
-  if (text.entities.empty()) {
-    return;
-  }
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    auto layer = td->user_manager_->get_secret_chat_layer(dialog_id.get_secret_chat_id());
-    td::remove_if(text.entities, [layer](const MessageEntity &entity) {
-      if (layer < static_cast<int32>(SecretChatLayer::NewEntities) &&
-          (entity.type == MessageEntity::Type::Underline || entity.type == MessageEntity::Type::Strikethrough ||
-           entity.type == MessageEntity::Type::BlockQuote ||
-           entity.type == MessageEntity::Type::ExpandableBlockQuote)) {
-        return true;
-      }
-      if (layer < static_cast<int32>(SecretChatLayer::SpoilerAndCustomEmojiEntities) &&
-          (entity.type == MessageEntity::Type::Spoiler || entity.type == MessageEntity::Type::CustomEmoji)) {
-        return true;
-      }
-      return false;
-    });
-
-    if (layer < static_cast<int32>(SecretChatLayer::NewEntities)) {
-      sort_entities(text.entities);
-      remove_intersecting_entities(text.entities);
-    }
-  }
-  if (!td->dialog_manager_->can_use_premium_custom_emoji_in_dialog(dialog_id)) {
-    remove_premium_custom_emoji_entities(td, text.entities, true);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageEntity.h b/third-party/td/td/td/telegram/MessageEntity.h
deleted file mode 100644
index 58a3c82f64..0000000000
--- a/third-party/td/td/td/telegram/MessageEntity.h
+++ /dev/null
@@ -1,258 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class Dependencies;
-class MultiPromiseActor;
-class Td;
-class UserManager;
-
-class MessageEntity {
- public:
-  enum class Type : int32 {
-    Mention,
-    Hashtag,
-    BotCommand,
-    Url,
-    EmailAddress,
-    Bold,
-    Italic,
-    Code,
-    Pre,
-    PreCode,
-    TextUrl,
-    MentionName,
-    Cashtag,
-    PhoneNumber,
-    Underline,
-    Strikethrough,
-    BlockQuote,
-    BankCardNumber,
-    MediaTimestamp,
-    Spoiler,
-    CustomEmoji,
-    ExpandableBlockQuote,
-    Size
-  };
-  Type type = Type::Size;
-  int32 offset = -1;
-  int32 length = -1;
-  int32 media_timestamp = -1;
-  string argument;
-  UserId user_id;
-  CustomEmojiId custom_emoji_id;
-
-  MessageEntity() = default;
-
-  MessageEntity(Type type, int32 offset, int32 length, string argument = "")
-      : type(type), offset(offset), length(length), argument(std::move(argument)) {
-  }
-  MessageEntity(int32 offset, int32 length, UserId user_id)
-      : type(Type::MentionName), offset(offset), length(length), user_id(user_id) {
-  }
-  MessageEntity(Type type, int32 offset, int32 length, int32 media_timestamp)
-      : type(type), offset(offset), length(length), media_timestamp(media_timestamp) {
-    CHECK(type == Type::MediaTimestamp);
-  }
-  MessageEntity(Type type, int32 offset, int32 length, CustomEmojiId custom_emoji_id)
-      : type(type), offset(offset), length(length), custom_emoji_id(custom_emoji_id) {
-    CHECK(type == Type::CustomEmoji);
-  }
-
-  tl_object_ptr<td_api::textEntity> get_text_entity_object(const UserManager *user_manager) const;
-
-  bool operator==(const MessageEntity &other) const {
-    return offset == other.offset && length == other.length && type == other.type &&
-           media_timestamp == other.media_timestamp && argument == other.argument && user_id == other.user_id &&
-           custom_emoji_id == other.custom_emoji_id;
-  }
-
-  bool operator<(const MessageEntity &other) const {
-    if (offset != other.offset) {
-      return offset < other.offset;
-    }
-    if (length != other.length) {
-      return length > other.length;
-    }
-    auto priority = get_type_priority(type);
-    auto other_priority = get_type_priority(other.type);
-    return priority < other_priority;
-  }
-
-  bool operator!=(const MessageEntity &rhs) const {
-    return !(*this == rhs);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  tl_object_ptr<td_api::TextEntityType> get_text_entity_type_object(const UserManager *user_manager) const;
-
-  static int get_type_priority(Type type);
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageEntity::Type &message_entity_type);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageEntity &message_entity);
-
-struct FormattedText {
-  string text;
-  vector<MessageEntity> entities;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-struct FormattedTextHash {
-  uint32 operator()(const FormattedText &formatted_text) const {
-    auto hash = Hash<string>()(formatted_text.text);
-    for (auto &entity : formatted_text.entities) {
-      hash = combine_hashes(hash, Hash<int32>()(static_cast<int32>(entity.type)));
-      hash = combine_hashes(hash, Hash<int32>()(entity.length));
-      hash = combine_hashes(hash, Hash<int32>()(entity.offset));
-    }
-    return hash;
-  }
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const FormattedText &text);
-
-inline bool operator==(const FormattedText &lhs, const FormattedText &rhs) {
-  return lhs.text == rhs.text && lhs.entities == rhs.entities;
-}
-
-inline bool operator!=(const FormattedText &lhs, const FormattedText &rhs) {
-  return !(lhs == rhs);
-}
-
-const FlatHashSet<Slice, SliceHash> &get_valid_short_usernames();
-
-Result<vector<MessageEntity>> get_message_entities(const UserManager *user_manager,
-                                                   vector<tl_object_ptr<td_api::textEntity>> &&input_entities,
-                                                   bool allow_all = false);
-
-vector<tl_object_ptr<td_api::textEntity>> get_text_entities_object(const UserManager *user_manager,
-                                                                   const vector<MessageEntity> &entities,
-                                                                   bool skip_bot_commands, int32 max_media_timestamp);
-
-td_api::object_ptr<td_api::formattedText> get_formatted_text_object(const UserManager *user_manager,
-                                                                    const FormattedText &text, bool skip_bot_commands,
-                                                                    int32 max_media_timestamp);
-
-void keep_only_custom_emoji(FormattedText &text);
-
-void remove_premium_custom_emoji_entities(const Td *td, vector<MessageEntity> &entities, bool remove_unknown);
-
-void remove_unallowed_entities(const Td *td, FormattedText &text, DialogId dialog_id);
-
-vector<MessageEntity> find_entities(Slice text, bool skip_bot_commands, bool skip_media_timestamps);
-
-vector<Slice> find_mentions(Slice str);
-vector<Slice> find_bot_commands(Slice str);
-vector<Slice> find_hashtags(Slice str);
-vector<Slice> find_cashtags(Slice str);
-vector<Slice> find_bank_card_numbers(Slice str);
-vector<Slice> find_tg_urls(Slice str);
-bool is_email_address(Slice str);
-vector<std::pair<Slice, bool>> find_urls(Slice str);               // slice + is_email_address
-vector<std::pair<Slice, int32>> find_media_timestamps(Slice str);  // slice + media_timestamp
-
-void remove_empty_entities(vector<MessageEntity> &entities);
-
-Slice get_first_url(const FormattedText &text);
-
-bool is_visible_url(const FormattedText &text, const string &url);
-
-Result<vector<MessageEntity>> parse_markdown(string &text);
-
-Result<vector<MessageEntity>> parse_markdown_v2(string &text);
-
-FormattedText parse_markdown_v3(FormattedText text);
-
-FormattedText get_markdown_v3(FormattedText text);
-
-Result<vector<MessageEntity>> parse_html(string &str);
-
-vector<tl_object_ptr<telegram_api::MessageEntity>> get_input_message_entities(const UserManager *user_manager,
-                                                                              const vector<MessageEntity> &entities,
-                                                                              const char *source);
-
-vector<tl_object_ptr<telegram_api::MessageEntity>> get_input_message_entities(const UserManager *user_manager,
-                                                                              const FormattedText *text,
-                                                                              const char *source);
-
-vector<tl_object_ptr<secret_api::MessageEntity>> get_input_secret_message_entities(
-    const vector<MessageEntity> &entities, int32 layer);
-
-vector<MessageEntity> get_message_entities(Td *td, vector<tl_object_ptr<secret_api::MessageEntity>> &&secret_entities,
-                                           bool is_premium, MultiPromiseActor &load_data_multipromise);
-
-telegram_api::object_ptr<telegram_api::textWithEntities> get_input_text_with_entities(const UserManager *user_manager,
-                                                                                      const FormattedText &text,
-                                                                                      const char *source);
-
-FormattedText get_formatted_text(const UserManager *user_manager, string &&text,
-                                 vector<telegram_api::object_ptr<telegram_api::MessageEntity>> &&server_entities,
-                                 bool skip_media_timestamps, bool skip_trim, const char *source);
-
-FormattedText get_formatted_text(const UserManager *user_manager,
-                                 telegram_api::object_ptr<telegram_api::textWithEntities> text_with_entities,
-                                 bool skip_media_timestamps, bool skip_trim, const char *source);
-
-void fix_entities(vector<MessageEntity> &entities);
-
-// like clean_input_string but also validates entities
-Status fix_formatted_text(string &text, vector<MessageEntity> &entities, bool allow_empty, bool skip_new_entities,
-                          bool skip_bot_commands, bool skip_media_timestamps, bool skip_trim,
-                          int32 *ltrim_count = nullptr) TD_WARN_UNUSED_RESULT;
-
-FormattedText get_message_text(const UserManager *user_manager, string message_text,
-                               vector<tl_object_ptr<telegram_api::MessageEntity>> &&server_entities,
-                               bool skip_new_entities, bool skip_media_timestamps, int32 send_date, bool from_album,
-                               const char *source);
-
-void truncate_formatted_text(FormattedText &text, size_t length);
-
-Result<FormattedText> get_formatted_text(const Td *td, DialogId dialog_id,
-                                         td_api::object_ptr<td_api::formattedText> &&text, bool is_bot,
-                                         bool allow_empty, bool skip_media_timestamps, bool skip_trim,
-                                         int32 *ltrim_count = nullptr);
-
-void add_formatted_text_dependencies(Dependencies &dependencies, const FormattedText *text);
-
-bool has_media_timestamps(const FormattedText *text, int32 min_media_timestamp, int32 max_media_timestamp);
-
-bool has_bot_commands(const FormattedText *text);
-
-bool need_always_skip_bot_commands(const UserManager *user_manager, DialogId dialog_id, bool is_bot);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageEntity.hpp b/third-party/td/td/td/telegram/MessageEntity.hpp
deleted file mode 100644
index 175ab99f74..0000000000
--- a/third-party/td/td/td/telegram/MessageEntity.hpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MessageEntity::store(StorerT &storer) const {
-  using td::store;
-  store(type, storer);
-  store(offset, storer);
-  store(length, storer);
-  if (type == Type::PreCode || type == Type::TextUrl) {
-    store(argument, storer);
-  }
-  if (type == Type::MentionName) {
-    store(user_id, storer);
-  }
-  if (type == Type::MediaTimestamp) {
-    store(media_timestamp, storer);
-  }
-  if (type == Type::CustomEmoji) {
-    store(custom_emoji_id, storer);
-  }
-}
-
-template <class ParserT>
-void MessageEntity::parse(ParserT &parser) {
-  using td::parse;
-  parse(type, parser);
-  parse(offset, parser);
-  parse(length, parser);
-  if (type == Type::PreCode || type == Type::TextUrl) {
-    parse(argument, parser);
-  }
-  if (type == Type::MentionName) {
-    parse(user_id, parser);
-  }
-  if (type == Type::MediaTimestamp) {
-    parse(media_timestamp, parser);
-  }
-  if (type == Type::CustomEmoji) {
-    parse(custom_emoji_id, parser);
-  }
-}
-
-template <class StorerT>
-void FormattedText::store(StorerT &storer) const {
-  td::store(text, storer);
-  td::store(entities, storer);
-}
-
-template <class ParserT>
-void FormattedText::parse(ParserT &parser) {
-  td::parse(text, parser);
-  td::parse(entities, parser);
-  remove_empty_entities(entities);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageExtendedMedia.cpp b/third-party/td/td/td/telegram/MessageExtendedMedia.cpp
deleted file mode 100644
index 4d93b0b28f..0000000000
--- a/third-party/td/td/td/telegram/MessageExtendedMedia.cpp
+++ /dev/null
@@ -1,459 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageExtendedMedia.h"
-
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/VideosManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/MimeType.h"
-#include "td/utils/PathView.h"
-
-namespace td {
-
-MessageExtendedMedia::MessageExtendedMedia(
-    Td *td, telegram_api::object_ptr<telegram_api::MessageExtendedMedia> &&extended_media, DialogId owner_dialog_id) {
-  if (extended_media == nullptr) {
-    return;
-  }
-
-  switch (extended_media->get_id()) {
-    case telegram_api::messageExtendedMediaPreview::ID: {
-      auto media = move_tl_object_as<telegram_api::messageExtendedMediaPreview>(extended_media);
-      type_ = Type::Preview;
-      duration_ = media->video_duration_;
-      dimensions_ = get_dimensions(media->w_, media->h_, "MessageExtendedMedia");
-      if (media->thumb_ != nullptr) {
-        if (media->thumb_->get_id() == telegram_api::photoStrippedSize::ID) {
-          auto thumbnail = move_tl_object_as<telegram_api::photoStrippedSize>(media->thumb_);
-          minithumbnail_ = thumbnail->bytes_.as_slice().str();
-        } else {
-          LOG(ERROR) << "Receive " << to_string(media->thumb_);
-        }
-      }
-      break;
-    }
-    case telegram_api::messageExtendedMedia::ID: {
-      auto media = move_tl_object_as<telegram_api::messageExtendedMedia>(extended_media);
-      init_from_media(td, std::move(media->media_), owner_dialog_id);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-MessageExtendedMedia::MessageExtendedMedia(Td *td, telegram_api::object_ptr<telegram_api::MessageMedia> &&media,
-                                           DialogId owner_dialog_id) {
-  init_from_media(td, std::move(media), owner_dialog_id);
-}
-
-void MessageExtendedMedia::init_from_media(Td *td, telegram_api::object_ptr<telegram_api::MessageMedia> &&media,
-                                           DialogId owner_dialog_id) {
-  type_ = Type::Unsupported;
-  switch (media->get_id()) {
-    case telegram_api::messageMediaPhoto::ID: {
-      auto photo = telegram_api::move_object_as<telegram_api::messageMediaPhoto>(media);
-      if (photo->photo_ == nullptr) {
-        break;
-      }
-
-      photo_ = get_photo(td, std::move(photo->photo_), owner_dialog_id);
-      if (photo_.is_empty()) {
-        break;
-      }
-      type_ = Type::Photo;
-      break;
-    }
-    case telegram_api::messageMediaDocument::ID: {
-      auto document = telegram_api::move_object_as<telegram_api::messageMediaDocument>(media);
-      if (document->document_ == nullptr) {
-        break;
-      }
-
-      auto document_ptr = std::move(document->document_);
-      int32 document_id = document_ptr->get_id();
-      if (document_id == telegram_api::documentEmpty::ID) {
-        break;
-      }
-      CHECK(document_id == telegram_api::document::ID);
-
-      auto parsed_document = td->documents_manager_->on_get_document(
-          telegram_api::move_object_as<telegram_api::document>(document_ptr), owner_dialog_id, false);
-      if (parsed_document.empty() || parsed_document.type != Document::Type::Video) {
-        break;
-      }
-      CHECK(parsed_document.file_id.is_valid());
-      video_file_id_ = parsed_document.file_id;
-      start_timestamp_ = document->video_timestamp_;
-      type_ = Type::Video;
-
-      if (document->video_cover_ != nullptr) {
-        photo_ = get_photo(td, std::move(document->video_cover_), owner_dialog_id);
-      }
-      break;
-    }
-    default:
-      break;
-  }
-  if (type_ == Type::Unsupported) {
-    unsupported_version_ = CURRENT_VERSION;
-  }
-}
-
-Result<MessageExtendedMedia> MessageExtendedMedia::get_message_extended_media(
-    Td *td, td_api::object_ptr<td_api::inputPaidMedia> &&paid_media, DialogId owner_dialog_id) {
-  if (paid_media == nullptr) {
-    return MessageExtendedMedia();
-  }
-  if (!owner_dialog_id.is_valid()) {
-    return Status::Error(400, "Extended media can't be added to the invoice");
-  }
-  if (paid_media->type_ == nullptr) {
-    return Status::Error(400, "Paid media type must be non-empty");
-  }
-
-  MessageExtendedMedia result;
-
-  auto file_type = FileType::None;
-  switch (paid_media->type_->get_id()) {
-    case td_api::inputPaidMediaTypePhoto::ID:
-      file_type = FileType::Photo;
-      result.type_ = Type::Photo;
-      break;
-    case td_api::inputPaidMediaTypeVideo::ID:
-      file_type = FileType::Video;
-      result.type_ = Type::Video;
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  TRY_RESULT(file_id, td->file_manager_->get_input_file_id(file_type, std::move(paid_media->media_), owner_dialog_id,
-                                                           false, false));
-  CHECK(file_id.is_valid());
-
-  auto sticker_file_ids = td->stickers_manager_->get_attached_sticker_file_ids(paid_media->added_sticker_file_ids_);
-  auto thumbnail =
-      get_input_thumbnail_photo_size(td->file_manager_.get(), paid_media->thumbnail_.get(), owner_dialog_id, false);
-
-  switch (result.type_) {
-    case Type::Photo: {
-      TRY_RESULT(photo, create_photo(td->file_manager_.get(), file_id, std::move(thumbnail), paid_media->width_,
-                                     paid_media->height_, std::move(sticker_file_ids)));
-      result.photo_ = std::move(photo);
-      break;
-    }
-    case Type::Video: {
-      auto type = static_cast<td_api::inputPaidMediaTypeVideo *>(paid_media->type_.get());
-
-      TRY_RESULT(cover_file_id, td->file_manager_->get_input_file_id(FileType::Photo, type->cover_, owner_dialog_id,
-                                                                     true, false, false));
-      Photo cover;
-      if (cover_file_id.is_valid()) {
-        TRY_RESULT_ASSIGN(cover, create_photo(td->file_manager_.get(), cover_file_id, PhotoSize(), paid_media->width_,
-                                              paid_media->height_, vector<FileId>()));
-      }
-
-      FileView file_view = td->file_manager_->get_file_view(file_id);
-      auto suggested_path = file_view.suggested_path();
-      const PathView path_view(suggested_path);
-      string file_name = path_view.file_name().str();
-      string mime_type = MimeType::from_extension(path_view.extension());
-
-      bool has_stickers = !sticker_file_ids.empty();
-      td->videos_manager_->create_video(file_id, string(), std::move(thumbnail), AnimationSize(), has_stickers,
-                                        std::move(sticker_file_ids), std::move(file_name), std::move(mime_type),
-                                        type->duration_, type->duration_,
-                                        get_dimensions(paid_media->width_, paid_media->height_, nullptr),
-                                        type->supports_streaming_, false, 0, 0.0, string(), false);
-      result.video_file_id_ = file_id;
-      result.photo_ = std::move(cover);
-      result.start_timestamp_ = max(0, type->start_timestamp_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return result;
-}
-
-void MessageExtendedMedia::update_from(const MessageExtendedMedia &old_extended_media) {
-  if (!is_media() && old_extended_media.is_media()) {
-    *this = old_extended_media;
-  }
-}
-
-bool MessageExtendedMedia::update_to(Td *td,
-                                     telegram_api::object_ptr<telegram_api::MessageExtendedMedia> extended_media_ptr,
-                                     DialogId owner_dialog_id) {
-  MessageExtendedMedia new_extended_media(td, std::move(extended_media_ptr), owner_dialog_id);
-  if (!new_extended_media.is_media() && is_media()) {
-    return false;
-  }
-  if (*this != new_extended_media || is_equal_but_different(new_extended_media)) {
-    *this = std::move(new_extended_media);
-    return true;
-  }
-  return false;
-}
-
-td_api::object_ptr<td_api::PaidMedia> MessageExtendedMedia::get_paid_media_object(Td *td) const {
-  if (type_ == Type::Empty) {
-    return nullptr;
-  }
-
-  switch (type_) {
-    case Type::Unsupported:
-      return td_api::make_object<td_api::paidMediaUnsupported>();
-    case Type::Preview:
-      return td_api::make_object<td_api::paidMediaPreview>(dimensions_.width, dimensions_.height, duration_,
-                                                           get_minithumbnail_object(minithumbnail_));
-    case Type::Photo: {
-      auto photo = get_photo_object(td->file_manager_.get(), photo_);
-      CHECK(photo != nullptr);
-      return td_api::make_object<td_api::paidMediaPhoto>(std::move(photo));
-    }
-    case Type::Video:
-      return td_api::make_object<td_api::paidMediaVideo>(td->videos_manager_->get_video_object(video_file_id_),
-                                                         get_photo_object(td->file_manager_.get(), photo_),
-                                                         max(0, start_timestamp_));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-void MessageExtendedMedia::append_file_ids(const Td *td, vector<FileId> &file_ids) const {
-  switch (type_) {
-    case Type::Empty:
-    case Type::Unsupported:
-    case Type::Preview:
-      break;
-    case Type::Photo:
-      append(file_ids, photo_get_file_ids(photo_));
-      break;
-    case Type::Video:
-      Document(Document::Type::Video, video_file_id_).append_file_ids(td, file_ids);
-      if (!photo_.is_empty()) {
-        append(file_ids, photo_get_file_ids(photo_));
-      }
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-void MessageExtendedMedia::delete_thumbnail(Td *td) {
-  switch (type_) {
-    case Type::Empty:
-    case Type::Unsupported:
-    case Type::Preview:
-      break;
-    case Type::Photo:
-      photo_delete_thumbnail(photo_);
-      break;
-    case Type::Video:
-      td->videos_manager_->delete_video_thumbnail(video_file_id_);
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-unique_ptr<MessageContent> MessageExtendedMedia::get_message_content() const {
-  switch (type_) {
-    case Type::Photo:
-      return create_photo_message_content(photo_);
-    case Type::Video:
-      return create_video_message_content(video_file_id_, photo_, start_timestamp_);
-    case Type::Empty:
-    case Type::Unsupported:
-    case Type::Preview:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-int32 MessageExtendedMedia::get_duration(const Td *td) const {
-  if (!has_media_timestamp()) {
-    return -1;
-  }
-  return td->videos_manager_->get_video_duration(video_file_id_);
-}
-
-FileId MessageExtendedMedia::get_any_file_id() const {
-  switch (type_) {
-    case Type::Empty:
-    case Type::Unsupported:
-    case Type::Preview:
-      break;
-    case Type::Photo:
-      return get_photo_any_file_id(photo_);
-    case Type::Video:
-      return video_file_id_;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return FileId();
-}
-
-FileId MessageExtendedMedia::get_thumbnail_file_id(const Td *td) const {
-  switch (type_) {
-    case Type::Empty:
-    case Type::Unsupported:
-    case Type::Preview:
-      break;
-    case Type::Photo:
-      return get_photo_thumbnail_file_id(photo_);
-    case Type::Video:
-      return td->videos_manager_->get_video_thumbnail_file_id(video_file_id_);
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return FileId();
-}
-
-FileId MessageExtendedMedia::get_cover_any_file_id() const {
-  switch (type_) {
-    case Type::Empty:
-    case Type::Unsupported:
-    case Type::Preview:
-    case Type::Photo:
-      break;
-    case Type::Video:
-      return get_photo_any_file_id(photo_);
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return FileId();
-}
-
-void MessageExtendedMedia::update_file_id_remote(FileId file_id) {
-  if (file_id.get_remote() == 0 || type_ != Type::Video) {
-    return;
-  }
-  if (video_file_id_ == file_id && video_file_id_.get_remote() == 0) {
-    video_file_id_ = file_id;
-  }
-}
-
-const Photo *MessageExtendedMedia::get_video_cover() const {
-  switch (type_) {
-    case Type::Empty:
-    case Type::Unsupported:
-    case Type::Preview:
-    case Type::Photo:
-      break;
-    case Type::Video:
-      return &photo_;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return nullptr;
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> MessageExtendedMedia::get_input_media(
-    Td *td, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) const {
-  switch (type_) {
-    case Type::Empty:
-    case Type::Unsupported:
-    case Type::Preview:
-      break;
-    case Type::Photo:
-      return photo_get_input_media(td->file_manager_.get(), photo_, std::move(input_file), 0, false);
-    case Type::Video:
-      return td->videos_manager_->get_input_media(video_file_id_, std::move(input_file), std::move(input_thumbnail),
-                                                  photo_, start_timestamp_, 0, false);
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return nullptr;
-}
-
-void MessageExtendedMedia::merge_files(Td *td, MessageExtendedMedia &other, DialogId dialog_id, bool need_merge_files,
-                                       bool &is_content_changed, bool &need_update) const {
-  if (!has_input_media() || !other.has_input_media()) {
-    return;
-  }
-  if (type_ != other.type_) {
-    LOG(ERROR) << "Type of paid media has changed";
-    return;
-  }
-  switch (type_) {
-    case Type::Photo:
-      merge_photos(td, &photo_, &other.photo_, dialog_id, need_merge_files, is_content_changed, need_update);
-      break;
-    case Type::Video:
-      if (video_file_id_ != other.video_file_id_ && need_merge_files) {
-        td->videos_manager_->merge_videos(other.video_file_id_, video_file_id_);
-      }
-      break;
-    case Type::Empty:
-    case Type::Preview:
-    case Type::Unsupported:
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-bool MessageExtendedMedia::is_equal_but_different(const MessageExtendedMedia &other) const {
-  return type_ == Type::Unsupported && other.type_ == Type::Unsupported &&
-         unsupported_version_ != other.unsupported_version_;
-}
-
-bool operator==(const MessageExtendedMedia &lhs, const MessageExtendedMedia &rhs) {
-  if (lhs.type_ != rhs.type_) {
-    return false;
-  }
-  switch (lhs.type_) {
-    case MessageExtendedMedia::Type::Empty:
-      return true;
-    case MessageExtendedMedia::Type::Unsupported:
-      // don't compare unsupported_version_
-      return true;
-    case MessageExtendedMedia::Type::Preview:
-      return lhs.duration_ == rhs.duration_ && lhs.dimensions_ == rhs.dimensions_ &&
-             lhs.minithumbnail_ == rhs.minithumbnail_;
-    case MessageExtendedMedia::Type::Photo:
-      return lhs.photo_ == rhs.photo_;
-    case MessageExtendedMedia::Type::Video:
-      return lhs.video_file_id_ == rhs.video_file_id_ && lhs.photo_ == rhs.photo_ &&
-             lhs.start_timestamp_ == rhs.start_timestamp_;
-    default:
-      UNREACHABLE();
-      return true;
-  }
-}
-
-bool operator!=(const MessageExtendedMedia &lhs, const MessageExtendedMedia &rhs) {
-  return !(lhs == rhs);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageExtendedMedia.h b/third-party/td/td/td/telegram/MessageExtendedMedia.h
deleted file mode 100644
index c90649fb16..0000000000
--- a/third-party/td/td/td/telegram/MessageExtendedMedia.h
+++ /dev/null
@@ -1,134 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class MessageContent;
-
-class Td;
-
-class MessageExtendedMedia {
-  enum class Type : int32 { Empty, Unsupported, Preview, Photo, Video };
-  Type type_ = Type::Empty;
-
-  static constexpr int32 CURRENT_VERSION = 1;
-
-  // for Unsupported
-  int32 unsupported_version_ = 0;
-
-  // for Preview
-  int32 duration_ = 0;
-  Dimensions dimensions_;
-  string minithumbnail_;
-
-  // for Photo and Video cover
-  Photo photo_;
-
-  // for Video
-  FileId video_file_id_;
-  int32 start_timestamp_ = 0;
-
-  friend bool operator==(const MessageExtendedMedia &lhs, const MessageExtendedMedia &rhs);
-
-  void init_from_media(Td *td, telegram_api::object_ptr<telegram_api::MessageMedia> &&media, DialogId owner_dialog_id);
-
-  bool is_media() const {
-    return type_ != Type::Empty && type_ != Type::Preview;
-  }
-
- public:
-  MessageExtendedMedia() = default;
-
-  MessageExtendedMedia(Td *td, telegram_api::object_ptr<telegram_api::MessageExtendedMedia> &&extended_media,
-                       DialogId owner_dialog_id);
-
-  MessageExtendedMedia(Td *td, telegram_api::object_ptr<telegram_api::MessageMedia> &&media, DialogId owner_dialog_id);
-
-  static Result<MessageExtendedMedia> get_message_extended_media(
-      Td *td, td_api::object_ptr<td_api::inputPaidMedia> &&paid_media, DialogId owner_dialog_id);
-
-  bool is_empty() const {
-    return type_ == Type::Empty;
-  }
-
-  bool has_input_media() const {
-    return type_ == Type::Photo || type_ == Type::Video;
-  }
-
-  void update_from(const MessageExtendedMedia &old_extended_media);
-
-  bool update_to(Td *td, telegram_api::object_ptr<telegram_api::MessageExtendedMedia> extended_media_ptr,
-                 DialogId owner_dialog_id);
-
-  td_api::object_ptr<td_api::PaidMedia> get_paid_media_object(Td *td) const;
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const;
-
-  void delete_thumbnail(Td *td);
-
-  bool is_unsupported() const {
-    return type_ == Type::Unsupported;
-  }
-
-  bool need_reget() const {
-    return type_ == Type::Unsupported && unsupported_version_ < CURRENT_VERSION;
-  }
-
-  bool need_poll() const {
-    return type_ == Type::Preview;
-  }
-
-  bool has_media_timestamp() const {
-    return type_ == Type::Video;
-  }
-
-  bool is_equal_but_different(const MessageExtendedMedia &other) const;
-
-  unique_ptr<MessageContent> get_message_content() const;
-
-  int32 get_duration(const Td *td) const;
-
-  FileId get_any_file_id() const;
-
-  FileId get_thumbnail_file_id(const Td *td) const;
-
-  FileId get_cover_any_file_id() const;
-
-  void update_file_id_remote(FileId file_id);
-
-  const Photo *get_video_cover() const;
-
-  telegram_api::object_ptr<telegram_api::InputMedia> get_input_media(
-      Td *td, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) const;
-
-  void merge_files(Td *td, MessageExtendedMedia &other, DialogId dialog_id, bool need_merge_files,
-                   bool &is_content_changed, bool &need_update) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const MessageExtendedMedia &lhs, const MessageExtendedMedia &rhs);
-
-bool operator!=(const MessageExtendedMedia &lhs, const MessageExtendedMedia &rhs);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageExtendedMedia.hpp b/third-party/td/td/td/telegram/MessageExtendedMedia.hpp
deleted file mode 100644
index 542d0fd0ac..0000000000
--- a/third-party/td/td/td/telegram/MessageExtendedMedia.hpp
+++ /dev/null
@@ -1,132 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageExtendedMedia.h"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/Td.h"
-#include "td/telegram/VideosManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MessageExtendedMedia::store(StorerT &storer) const {
-  bool has_unsupported_version = unsupported_version_ != 0;
-  bool has_duration = duration_ != 0;
-  bool has_dimensions = dimensions_.width != 0 || dimensions_.height != 0;
-  bool has_minithumbnail = !minithumbnail_.empty();
-  bool has_photo = !photo_.is_empty();
-  bool has_video = video_file_id_.is_valid();
-  bool has_start_timestamp = start_timestamp_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(false);  // has_caption
-  STORE_FLAG(has_unsupported_version);
-  STORE_FLAG(has_duration);
-  STORE_FLAG(has_dimensions);
-  STORE_FLAG(has_minithumbnail);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(has_video);
-  STORE_FLAG(has_start_timestamp);
-  END_STORE_FLAGS();
-  td::store(type_, storer);
-  if (has_unsupported_version) {
-    td::store(unsupported_version_, storer);
-  }
-  if (has_duration) {
-    td::store(duration_, storer);
-  }
-  if (has_dimensions) {
-    td::store(dimensions_, storer);
-  }
-  if (has_minithumbnail) {
-    td::store(minithumbnail_, storer);
-  }
-  if (has_photo) {
-    td::store(photo_, storer);
-  }
-  if (has_video) {
-    Td *td = storer.context()->td().get_actor_unsafe();
-    td->videos_manager_->store_video(video_file_id_, storer);
-  }
-  if (has_start_timestamp) {
-    td::store(start_timestamp_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageExtendedMedia::parse(ParserT &parser) {
-  bool has_caption;
-  bool has_unsupported_version;
-  bool has_duration;
-  bool has_dimensions;
-  bool has_minithumbnail;
-  bool has_photo;
-  bool has_video;
-  bool has_start_timestamp;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_caption);
-  PARSE_FLAG(has_unsupported_version);
-  PARSE_FLAG(has_duration);
-  PARSE_FLAG(has_dimensions);
-  PARSE_FLAG(has_minithumbnail);
-  PARSE_FLAG(has_photo);
-  PARSE_FLAG(has_video);
-  PARSE_FLAG(has_start_timestamp);
-  END_PARSE_FLAGS();
-  td::parse(type_, parser);
-  if (has_caption) {
-    FormattedText caption;
-    td::parse(caption, parser);
-  }
-  if (has_unsupported_version) {
-    td::parse(unsupported_version_, parser);
-  }
-  if (has_duration) {
-    td::parse(duration_, parser);
-  }
-  if (has_dimensions) {
-    td::parse(dimensions_, parser);
-  }
-  if (has_minithumbnail) {
-    td::parse(minithumbnail_, parser);
-  }
-  bool is_bad = false;
-  if (has_photo) {
-    td::parse(photo_, parser);
-    is_bad = photo_.is_bad();
-  } else if (type_ == Type::Photo) {
-    is_bad = true;
-  }
-  if (has_video) {
-    Td *td = parser.context()->td().get_actor_unsafe();
-    video_file_id_ = td->videos_manager_->parse_video(parser);
-    is_bad = !video_file_id_.is_valid();
-    if (type_ != Type::Video) {
-      is_bad = true;
-    }
-  } else if (type_ == Type::Video) {
-    is_bad = true;
-  }
-  if (has_start_timestamp) {
-    td::parse(start_timestamp_, parser);
-  }
-
-  if (is_bad || has_caption) {
-    if (is_bad) {
-      LOG(ERROR) << "Failed to parse MessageExtendedMedia";
-    }
-    photo_ = Photo();
-    video_file_id_ = FileId();
-    type_ = Type::Unsupported;
-    unsupported_version_ = 0;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageForwardInfo.cpp b/third-party/td/td/td/telegram/MessageForwardInfo.cpp
deleted file mode 100644
index e1d2e16976..0000000000
--- a/third-party/td/td/td/telegram/MessageForwardInfo.cpp
+++ /dev/null
@@ -1,266 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageForwardInfo.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-bool LastForwardedMessageInfo::is_empty() const {
-  return *this == LastForwardedMessageInfo();
-}
-
-void LastForwardedMessageInfo::validate() {
-  if (dialog_id_.is_valid() != message_id_.is_valid() ||
-      (sender_dialog_id_ != DialogId() && !sender_dialog_id_.is_valid()) ||
-      ((sender_dialog_id_ != DialogId() || !sender_name_.empty()) && date_ <= 0)) {
-    *this = {};
-  }
-}
-
-void LastForwardedMessageInfo::hide_sender_if_needed(Td *td) {
-  if (sender_name_.empty() && sender_dialog_id_.get_type() == DialogType::User) {
-    auto private_forward_name = td->user_manager_->get_user_private_forward_name(sender_dialog_id_.get_user_id());
-    if (!private_forward_name.empty()) {
-      dialog_id_ = DialogId();
-      message_id_ = MessageId();
-      sender_dialog_id_ = DialogId();
-      sender_name_ = std::move(private_forward_name);
-    }
-  }
-}
-
-void LastForwardedMessageInfo::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add_dialog_and_dependencies(dialog_id_);
-  dependencies.add_message_sender_dependencies(sender_dialog_id_);
-}
-
-void LastForwardedMessageInfo::add_min_user_ids(vector<UserId> &user_ids) const {
-  if (dialog_id_.get_type() == DialogType::User) {
-    user_ids.push_back(dialog_id_.get_user_id());
-  }
-  if (sender_dialog_id_.get_type() == DialogType::User) {
-    user_ids.push_back(sender_dialog_id_.get_user_id());
-  }
-}
-
-void LastForwardedMessageInfo::add_min_channel_ids(vector<ChannelId> &channel_ids) const {
-  if (dialog_id_.get_type() == DialogType::Channel) {
-    channel_ids.push_back(dialog_id_.get_channel_id());
-  }
-  if (sender_dialog_id_.get_type() == DialogType::Channel) {
-    channel_ids.push_back(sender_dialog_id_.get_channel_id());
-  }
-}
-
-td_api::object_ptr<td_api::forwardSource> LastForwardedMessageInfo::get_forward_source_object(
-    Td *td, bool for_saved_messages, const MessageOrigin &origin, int32 origin_date) const {
-  if (is_empty() && (origin.is_empty() || !for_saved_messages)) {
-    return nullptr;
-  }
-  td_api::object_ptr<td_api::MessageSender> sender_id;
-  if (date_ == 0 && for_saved_messages) {
-    auto sender_dialog_id = origin.get_sender();
-    if (sender_dialog_id.is_valid()) {
-      sender_id = get_message_sender_object_const(td, sender_dialog_id, "origin.forwardSource.sender_id");
-    }
-    return td_api::make_object<td_api::forwardSource>(
-        td->dialog_manager_->get_chat_id_object(dialog_id_, "forwardSource.chat_id"), message_id_.get(),
-        std::move(sender_id), origin.get_sender_name(), origin_date,
-        is_outgoing_ || sender_dialog_id == td->dialog_manager_->get_my_dialog_id());
-  }
-
-  if (sender_dialog_id_ != DialogId()) {
-    sender_id = get_message_sender_object_const(td, sender_dialog_id_, "forwardSource.sender_id");
-  }
-  return td_api::make_object<td_api::forwardSource>(
-      td->dialog_manager_->get_chat_id_object(dialog_id_, "forwardSource.chat_id"), message_id_.get(),
-      std::move(sender_id), sender_name_, date_,
-      is_outgoing_ || sender_dialog_id_ == td->dialog_manager_->get_my_dialog_id());
-}
-
-bool operator==(const LastForwardedMessageInfo &lhs, const LastForwardedMessageInfo &rhs) {
-  return lhs.dialog_id_ == rhs.dialog_id_ && lhs.message_id_ == rhs.message_id_ &&
-         lhs.sender_dialog_id_ == rhs.sender_dialog_id_ && lhs.sender_name_ == rhs.sender_name_ &&
-         lhs.date_ == rhs.date_ && lhs.is_outgoing_ == rhs.is_outgoing_;
-}
-
-bool operator!=(const LastForwardedMessageInfo &lhs, const LastForwardedMessageInfo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const LastForwardedMessageInfo &last_message_info) {
-  if (!last_message_info.is_empty()) {
-    string_builder << "last";
-    if (last_message_info.dialog_id_ != DialogId()) {
-      string_builder << " forwarded from "
-                     << MessageFullId(last_message_info.dialog_id_, last_message_info.message_id_);
-    }
-    if (last_message_info.sender_dialog_id_ != DialogId() || !last_message_info.sender_name_.empty() ||
-        last_message_info.is_outgoing_) {
-      string_builder << " sent by";
-      if (last_message_info.sender_dialog_id_.is_valid()) {
-        string_builder << ' ' << last_message_info.sender_dialog_id_;
-      }
-      if (!last_message_info.sender_name_.empty()) {
-        if (last_message_info.sender_dialog_id_.is_valid()) {
-          string_builder << '/';
-        } else {
-          string_builder << ' ';
-        }
-        string_builder << '"' << last_message_info.sender_name_ << '"';
-      }
-      string_builder << (last_message_info.is_outgoing_ ? " (me)" : " (not me)");
-    }
-    if (last_message_info.date_ != 0) {
-      string_builder << " at " << last_message_info.date_;
-    }
-  }
-  return string_builder;
-}
-
-unique_ptr<MessageForwardInfo> MessageForwardInfo::get_message_forward_info(
-    Td *td, telegram_api::object_ptr<telegram_api::messageFwdHeader> &&forward_header) {
-  if (forward_header == nullptr) {
-    return nullptr;
-  }
-  auto date = forward_header->date_;
-  if (date <= 0) {
-    LOG(ERROR) << "Wrong date in message forward header: " << oneline(to_string(forward_header));
-    return nullptr;
-  }
-
-  LastForwardedMessageInfo last_message_info;
-  if (forward_header->saved_from_peer_ != nullptr || forward_header->saved_from_id_ != nullptr ||
-      !forward_header->saved_from_name_.empty()) {
-    DialogId from_dialog_id;
-    if (forward_header->saved_from_peer_ != nullptr) {
-      from_dialog_id = DialogId(forward_header->saved_from_peer_);
-    }
-    DialogId sender_dialog_id;
-    if (forward_header->saved_from_id_ != nullptr) {
-      sender_dialog_id = DialogId(forward_header->saved_from_id_);
-    }
-    last_message_info = LastForwardedMessageInfo(
-        from_dialog_id, MessageId(ServerMessageId(forward_header->saved_from_msg_id_)), sender_dialog_id,
-        forward_header->saved_from_name_, forward_header->saved_date_,
-        forward_header->saved_out_ || sender_dialog_id == td->dialog_manager_->get_my_dialog_id());
-    last_message_info.validate();
-    if (last_message_info.is_empty()) {
-      LOG(ERROR) << "Receive wrong last message in message forward header: " << oneline(to_string(forward_header));
-    } else {
-      Dependencies dependencies;
-      last_message_info.add_dependencies(dependencies);
-      for (auto dialog_id : dependencies.get_dialog_ids()) {
-        td->dialog_manager_->force_create_dialog(dialog_id, "get_message_forward_info", true);
-      }
-    }
-  }
-  bool is_imported = forward_header->imported_;
-  auto psa_type = std::move(forward_header->psa_type_);
-  auto r_origin = MessageOrigin::get_message_origin(td, std::move(forward_header));
-  if (r_origin.is_error()) {
-    return nullptr;
-  }
-
-  return td::make_unique<MessageForwardInfo>(r_origin.move_as_ok(), date, std::move(last_message_info),
-                                             std::move(psa_type), is_imported);
-}
-
-unique_ptr<MessageForwardInfo> MessageForwardInfo::copy_message_forward_info(
-    Td *td, const MessageForwardInfo &forward_info, LastForwardedMessageInfo &&last_message_info) {
-  last_message_info.validate();
-  last_message_info.hide_sender_if_needed(td);
-
-  auto result = make_unique<MessageForwardInfo>(forward_info);
-  result->last_message_info_ = std::move(last_message_info);
-  result->origin_.hide_sender_if_needed(td);
-  return result;
-}
-
-td_api::object_ptr<td_api::messageForwardInfo> MessageForwardInfo::get_message_forward_info_object(
-    Td *td, bool for_saved_messages) const {
-  if (is_imported_) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::messageForwardInfo>(
-      origin_.get_message_origin_object(td), date_,
-      last_message_info_.get_forward_source_object(td, for_saved_messages, origin_, date_), psa_type_);
-}
-
-td_api::object_ptr<td_api::messageImportInfo> MessageForwardInfo::get_message_import_info_object() const {
-  if (!is_imported_) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::messageImportInfo>(origin_.get_sender_name(), date_);
-}
-
-void MessageForwardInfo::add_dependencies(Dependencies &dependencies) const {
-  origin_.add_dependencies(dependencies);
-  last_message_info_.add_dependencies(dependencies);
-}
-
-void MessageForwardInfo::add_min_user_ids(vector<UserId> &user_ids) const {
-  origin_.add_user_ids(user_ids);
-  last_message_info_.add_min_user_ids(user_ids);
-}
-
-void MessageForwardInfo::add_min_channel_ids(vector<ChannelId> &channel_ids) const {
-  origin_.add_channel_ids(channel_ids);
-  last_message_info_.add_min_channel_ids(channel_ids);
-}
-
-bool MessageForwardInfo::need_change_warning(const MessageForwardInfo *lhs, const MessageForwardInfo *rhs,
-                                             MessageId message_id) {
-  // it should be already checked that *lhs != *rhs
-  if (lhs == nullptr || rhs == nullptr || lhs->is_imported_ || rhs->is_imported_) {
-    return true;
-  }
-  if (!message_id.is_scheduled() && !message_id.is_yet_unsent()) {
-    return true;
-  }
-  // yet unsent or scheduled messages can change sender name or author signature when being sent
-  return !lhs->origin_.has_sender_signature() && !rhs->origin_.has_sender_signature() &&
-         !lhs->last_message_info_.has_sender_name() && !rhs->last_message_info_.has_sender_name();
-}
-
-bool operator==(const MessageForwardInfo &lhs, const MessageForwardInfo &rhs) {
-  return lhs.origin_ == rhs.origin_ && lhs.date_ == rhs.date_ && lhs.last_message_info_ == rhs.last_message_info_ &&
-         lhs.psa_type_ == rhs.psa_type_ && lhs.is_imported_ == rhs.is_imported_;
-}
-
-bool operator!=(const MessageForwardInfo &lhs, const MessageForwardInfo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageForwardInfo &forward_info) {
-  string_builder << "MessageForwardInfo[" << (forward_info.is_imported_ ? "imported " : "") << forward_info.origin_;
-  if (!forward_info.psa_type_.empty()) {
-    string_builder << ", psa_type " << forward_info.psa_type_;
-  }
-  if (!forward_info.last_message_info_.is_empty()) {
-    string_builder << ", " << forward_info.last_message_info_;
-  }
-  return string_builder << " at " << forward_info.date_ << ']';
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<MessageForwardInfo> &forward_info) {
-  if (forward_info == nullptr) {
-    return string_builder << "[null]";
-  }
-  return string_builder << *forward_info;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageForwardInfo.h b/third-party/td/td/td/telegram/MessageForwardInfo.h
deleted file mode 100644
index 19dd2ee8be..0000000000
--- a/third-party/td/td/td/telegram/MessageForwardInfo.h
+++ /dev/null
@@ -1,175 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageOrigin.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class LastForwardedMessageInfo {
-  DialogId dialog_id_;
-  MessageId message_id_;
-  DialogId sender_dialog_id_;
-  string sender_name_;
-  int32 date_ = 0;
-  bool is_outgoing_ = false;
-
-  friend bool operator==(const LastForwardedMessageInfo &lhs, const LastForwardedMessageInfo &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const LastForwardedMessageInfo &last_message_info);
-
- public:
-  LastForwardedMessageInfo() = default;
-
-  LastForwardedMessageInfo(DialogId dialog_id, MessageId message_id, DialogId sender_dialog_id, string sender_name,
-                           int32 date, bool is_outgoing)
-      : dialog_id_(dialog_id)
-      , message_id_(message_id)
-      , sender_dialog_id_(sender_dialog_id)
-      , sender_name_(std::move(sender_name))
-      , date_(date)
-      , is_outgoing_(is_outgoing) {
-  }
-
-  bool is_empty() const;
-
-  void validate();
-
-  void hide_sender_if_needed(Td *td);
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  void add_min_user_ids(vector<UserId> &user_ids) const;
-
-  void add_min_channel_ids(vector<ChannelId> &channel_ids) const;
-
-  td_api::object_ptr<td_api::forwardSource> get_forward_source_object(Td *td, bool for_saved_messages,
-                                                                      const MessageOrigin &origin,
-                                                                      int32 origin_date) const;
-
-  DialogId get_dialog_id() const {
-    return dialog_id_;
-  }
-
-  MessageFullId get_message_full_id() const {
-    return {dialog_id_, message_id_};
-  }
-
-  bool has_sender_name() const {
-    return !sender_name_.empty();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-class MessageForwardInfo {
-  MessageOrigin origin_;
-  int32 date_ = 0;
-  LastForwardedMessageInfo last_message_info_;
-  string psa_type_;
-  bool is_imported_ = false;
-
-  friend bool operator==(const MessageForwardInfo &lhs, const MessageForwardInfo &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageForwardInfo &forward_info);
-
- public:
-  MessageForwardInfo() = default;
-
-  MessageForwardInfo(MessageOrigin &&origin, int32 date, LastForwardedMessageInfo &&last_message_info,
-                     string &&psa_type, bool is_imported)
-      : origin_(std::move(origin))
-      , date_(date)
-      , last_message_info_(std::move(last_message_info))
-      , psa_type_(std::move(psa_type))
-      , is_imported_(is_imported) {
-    last_message_info_.validate();
-  }
-
-  static unique_ptr<MessageForwardInfo> get_message_forward_info(
-      Td *td, telegram_api::object_ptr<telegram_api::messageFwdHeader> &&forward_header);
-
-  static unique_ptr<MessageForwardInfo> copy_message_forward_info(Td *td, const MessageForwardInfo &forward_info,
-                                                                  LastForwardedMessageInfo &&last_message_info);
-
-  td_api::object_ptr<td_api::messageForwardInfo> get_message_forward_info_object(Td *td, bool for_saved_messages) const;
-
-  td_api::object_ptr<td_api::messageImportInfo> get_message_import_info_object() const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  void add_min_user_ids(vector<UserId> &user_ids) const;
-
-  void add_min_channel_ids(vector<ChannelId> &channel_ids) const;
-
-  static bool need_change_warning(const MessageForwardInfo *lhs, const MessageForwardInfo *rhs, MessageId message_id);
-
-  int32 get_origin_date() const {
-    return date_;
-  }
-
-  bool is_imported() const {
-    return is_imported_;
-  }
-
-  const MessageOrigin &get_origin() const {
-    return origin_;
-  }
-
-  MessageFullId get_origin_message_full_id() const {
-    return origin_.get_message_full_id();
-  }
-
-  DialogId get_last_dialog_id() const {
-    return last_message_info_.get_dialog_id();
-  }
-
-  MessageFullId get_last_message_full_id() const {
-    return last_message_info_.get_message_full_id();
-  }
-
-  bool has_last_sender_name() const {
-    return last_message_info_.has_sender_name();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const LastForwardedMessageInfo &lhs, const LastForwardedMessageInfo &rhs);
-
-bool operator!=(const LastForwardedMessageInfo &lhs, const LastForwardedMessageInfo &rhs);
-
-bool operator==(const MessageForwardInfo &lhs, const MessageForwardInfo &rhs);
-
-bool operator!=(const MessageForwardInfo &lhs, const MessageForwardInfo &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageForwardInfo &forward_info);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<MessageForwardInfo> &forward_info);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageForwardInfo.hpp b/third-party/td/td/td/telegram/MessageForwardInfo.hpp
deleted file mode 100644
index 02e418ec86..0000000000
--- a/third-party/td/td/td/telegram/MessageForwardInfo.hpp
+++ /dev/null
@@ -1,105 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageForwardInfo.h"
-#include "td/telegram/MessageOrigin.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void LastForwardedMessageInfo::store(StorerT &storer) const {
-  bool has_sender_dialog_id = sender_dialog_id_.is_valid();
-  bool has_sender_name = !sender_name_.empty();
-  bool has_date = date_ > 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_sender_dialog_id);
-  STORE_FLAG(has_sender_name);
-  STORE_FLAG(has_date);
-  STORE_FLAG(is_outgoing_);
-  END_STORE_FLAGS();
-  td::store(dialog_id_, storer);
-  td::store(message_id_, storer);
-  if (has_sender_dialog_id) {
-    td::store(sender_dialog_id_, storer);
-  }
-  if (has_sender_name) {
-    td::store(sender_name_, storer);
-  }
-  if (has_date) {
-    td::store(date_, storer);
-  }
-}
-
-template <class ParserT>
-void LastForwardedMessageInfo::parse(ParserT &parser) {
-  bool has_sender_dialog_id;
-  bool has_sender_name;
-  bool has_date;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_sender_dialog_id);
-  PARSE_FLAG(has_sender_name);
-  PARSE_FLAG(has_date);
-  PARSE_FLAG(is_outgoing_);
-  END_PARSE_FLAGS();
-  td::parse(dialog_id_, parser);
-  td::parse(message_id_, parser);
-  if (has_sender_dialog_id) {
-    td::parse(sender_dialog_id_, parser);
-  }
-  if (has_sender_name) {
-    td::parse(sender_name_, parser);
-  }
-  if (has_date) {
-    td::parse(date_, parser);
-  }
-
-  validate();
-}
-
-template <class StorerT>
-void MessageForwardInfo::store(StorerT &storer) const {
-  bool has_last_message_info = !last_message_info_.is_empty();
-  bool has_psa_type = !psa_type_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_imported_);
-  STORE_FLAG(has_last_message_info);
-  STORE_FLAG(has_psa_type);
-  END_STORE_FLAGS();
-  td::store(origin_, storer);
-  td::store(date_, storer);
-  if (has_last_message_info) {
-    td::store(last_message_info_, storer);
-  }
-  if (has_psa_type) {
-    td::store(psa_type_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageForwardInfo::parse(ParserT &parser) {
-  bool has_last_message_info;
-  bool has_psa_type;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_imported_);
-  PARSE_FLAG(has_last_message_info);
-  PARSE_FLAG(has_psa_type);
-  END_PARSE_FLAGS();
-  td::parse(origin_, parser);
-  td::parse(date_, parser);
-  if (has_last_message_info) {
-    td::parse(last_message_info_, parser);
-  }
-  if (has_psa_type) {
-    td::parse(psa_type_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageFullId.h b/third-party/td/td/td/telegram/MessageFullId.h
deleted file mode 100644
index 4b79d1e96b..0000000000
--- a/third-party/td/td/td/telegram/MessageFullId.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct MessageFullId {
- private:
-  DialogId dialog_id;
-  MessageId message_id;
-
- public:
-  MessageFullId() : dialog_id(), message_id() {
-  }
-
-  MessageFullId(DialogId dialog_id, MessageId message_id) : dialog_id(dialog_id), message_id(message_id) {
-  }
-
-  bool operator==(const MessageFullId &other) const {
-    return dialog_id == other.dialog_id && message_id == other.message_id;
-  }
-
-  bool operator!=(const MessageFullId &other) const {
-    return !(*this == other);
-  }
-
-  DialogId get_dialog_id() const {
-    return dialog_id;
-  }
-
-  MessageId get_message_id() const {
-    return message_id;
-  }
-
-  static MessageFullId get_message_full_id(const tl_object_ptr<telegram_api::Message> &message_ptr, bool is_scheduled) {
-    return get_message_full_id(message_ptr.get(), is_scheduled);
-  }
-
-  static MessageFullId get_message_full_id(const telegram_api::Message *message_ptr, bool is_scheduled) {
-    return {DialogId::get_message_dialog_id(message_ptr), MessageId::get_message_id(message_ptr, is_scheduled)};
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    dialog_id.store(storer);
-    message_id.store(storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    dialog_id.parse(parser);
-    message_id.parse(parser);
-  }
-};
-
-struct MessageFullIdHash {
-  uint32 operator()(MessageFullId message_full_id) const {
-    return combine_hashes(DialogIdHash()(message_full_id.get_dialog_id()),
-                          MessageIdHash()(message_full_id.get_message_id()));
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, MessageFullId message_full_id) {
-  return string_builder << message_full_id.get_message_id() << " in " << message_full_id.get_dialog_id();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageId.cpp b/third-party/td/td/td/telegram/MessageId.cpp
deleted file mode 100644
index e8a1bd94f7..0000000000
--- a/third-party/td/td/td/telegram/MessageId.cpp
+++ /dev/null
@@ -1,217 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageId.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-MessageId::MessageId(ScheduledServerMessageId server_message_id, int32 send_date, bool force) {
-  if (send_date <= (1 << 30)) {
-    LOG(ERROR) << "Scheduled message send date " << send_date << " is in the past";
-    return;
-  }
-  if (!server_message_id.is_valid() && !force) {
-    LOG(ERROR) << "Scheduled message ID " << server_message_id.get() << " is invalid";
-    return;
-  }
-  id = (static_cast<int64>(send_date - (1 << 30)) << 21) | (static_cast<int64>(server_message_id.get()) << 3) |
-       SCHEDULED_MASK;
-}
-
-MessageId MessageId::get_message_id(const telegram_api::Message *message_ptr, bool is_scheduled) {
-  CHECK(message_ptr != nullptr);
-  switch (message_ptr->get_id()) {
-    case telegram_api::messageEmpty::ID: {
-      auto message = static_cast<const telegram_api::messageEmpty *>(message_ptr);
-      return is_scheduled ? MessageId() : MessageId(ServerMessageId(message->id_));
-    }
-    case telegram_api::message::ID: {
-      auto message = static_cast<const telegram_api::message *>(message_ptr);
-      return is_scheduled ? MessageId(ScheduledServerMessageId(message->id_), message->date_)
-                          : MessageId(ServerMessageId(message->id_));
-    }
-    case telegram_api::messageService::ID: {
-      auto message = static_cast<const telegram_api::messageService *>(message_ptr);
-      return is_scheduled ? MessageId(ScheduledServerMessageId(message->id_), message->date_)
-                          : MessageId(ServerMessageId(message->id_));
-    }
-    default:
-      UNREACHABLE();
-      return MessageId();
-  }
-}
-
-MessageId MessageId::get_message_id(const tl_object_ptr<telegram_api::Message> &message_ptr, bool is_scheduled) {
-  return get_message_id(message_ptr.get(), is_scheduled);
-}
-
-MessageId MessageId::get_max_message_id(const vector<telegram_api::object_ptr<telegram_api::Message>> &messages) {
-  MessageId max_message_id;
-  for (auto &message : messages) {
-    auto message_id = get_message_id(message, false);
-    if (message_id > max_message_id) {
-      max_message_id = message_id;
-    }
-  }
-  return max_message_id;
-}
-
-vector<MessageId> MessageId::get_message_ids(const vector<int64> &input_message_ids) {
-  return transform(input_message_ids, [](int64 input_message_id) { return MessageId(input_message_id); });
-}
-
-vector<int32> MessageId::get_server_message_ids(const vector<MessageId> &message_ids) {
-  return transform(message_ids, [](MessageId message_id) { return message_id.get_server_message_id().get(); });
-}
-
-vector<int32> MessageId::get_scheduled_server_message_ids(const vector<MessageId> &message_ids) {
-  return transform(message_ids,
-                   [](MessageId message_id) { return message_id.get_scheduled_server_message_id().get(); });
-}
-
-bool MessageId::is_valid() const {
-  if (id <= 0 || id > max().get()) {
-    return false;
-  }
-  if ((id & FULL_TYPE_MASK) == 0) {
-    return true;
-  }
-  int32 type = (id & TYPE_MASK);
-  return type == TYPE_YET_UNSENT || type == TYPE_LOCAL;
-}
-
-bool MessageId::is_valid_scheduled() const {
-  if (id <= 0 || id > (static_cast<int64>(1) << 51)) {
-    return false;
-  }
-  int32 type = (id & TYPE_MASK);
-  return type == SCHEDULED_MASK || type == (SCHEDULED_MASK | TYPE_YET_UNSENT) || type == (SCHEDULED_MASK | TYPE_LOCAL);
-}
-
-bool MessageId::is_valid_sponsored() const {
-  if (id <= max().get() || id > (static_cast<int64>(1) << 51)) {
-    return false;
-  }
-  int32 type = (id & TYPE_MASK);
-  return type == TYPE_LOCAL;
-}
-
-MessageType MessageId::get_type() const {
-  if (id <= 0 || id > (static_cast<int64>(1) << 51)) {
-    return MessageType::None;
-  }
-
-  if (is_scheduled()) {
-    switch (id & TYPE_MASK) {
-      case SCHEDULED_MASK | TYPE_YET_UNSENT:
-        return MessageType::YetUnsent;
-      case SCHEDULED_MASK | TYPE_LOCAL:
-        return MessageType::Local;
-      case SCHEDULED_MASK:
-        return MessageType::Server;
-      default:
-        return MessageType::None;
-    }
-  }
-
-  if ((id & FULL_TYPE_MASK) == 0) {
-    return MessageType::Server;
-  }
-  switch (id & TYPE_MASK) {
-    case TYPE_YET_UNSENT:
-      return MessageType::YetUnsent;
-    case TYPE_LOCAL:
-      return MessageType::Local;
-    default:
-      return MessageType::None;
-  }
-}
-
-ServerMessageId MessageId::get_server_message_id_force() const {
-  CHECK(!is_scheduled());
-  return ServerMessageId(narrow_cast<int32>(id >> SERVER_ID_SHIFT));
-}
-
-MessageId MessageId::get_next_message_id(MessageType type) const {
-  if (is_scheduled()) {
-    CHECK(is_valid_scheduled());
-    auto current_type = get_type();
-    if (static_cast<int32>(current_type) < static_cast<int32>(type)) {
-      return MessageId(id - static_cast<int32>(current_type) + static_cast<int32>(type));
-    }
-    int64 base_id = (id & ~TYPE_MASK) + TYPE_MASK + 1 + SCHEDULED_MASK;
-    switch (type) {
-      case MessageType::Server:
-        return MessageId(base_id);
-      case MessageType::YetUnsent:
-        return MessageId(base_id + TYPE_YET_UNSENT);
-      case MessageType::Local:
-        return MessageId(base_id + TYPE_LOCAL);
-      case MessageType::None:
-      default:
-        UNREACHABLE();
-        return MessageId();
-    }
-  }
-
-  switch (type) {
-    case MessageType::Server:
-      if (is_server()) {
-        return MessageId(ServerMessageId(get_server_message_id().get() + 1));
-      }
-      return get_next_server_message_id();
-    case MessageType::YetUnsent:
-      return MessageId(((id + TYPE_MASK + 1 - TYPE_YET_UNSENT) & ~TYPE_MASK) + TYPE_YET_UNSENT);
-    case MessageType::Local:
-      return MessageId(((id + TYPE_MASK + 1 - TYPE_LOCAL) & ~TYPE_MASK) + TYPE_LOCAL);
-    case MessageType::None:
-    default:
-      UNREACHABLE();
-      return MessageId();
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, MessageId message_id) {
-  if (message_id.is_scheduled()) {
-    string_builder << "scheduled ";
-
-    if (!message_id.is_valid_scheduled()) {
-      return string_builder << "invalid message " << message_id.get();
-    }
-    if (message_id.is_scheduled_server()) {
-      return string_builder << "server message " << message_id.get_scheduled_server_message_id_force().get();
-    }
-    if (message_id.is_local()) {
-      return string_builder << "local message " << message_id.get_scheduled_server_message_id_force().get();
-    }
-    if (message_id.is_yet_unsent()) {
-      return string_builder << "yet unsent message " << message_id.get_scheduled_server_message_id_force().get();
-    }
-    return string_builder << "bugged message " << message_id.get();
-  }
-
-  if (!message_id.is_valid()) {
-    return string_builder << "invalid message " << message_id.get();
-  }
-  if (message_id.is_server()) {
-    return string_builder << "server message " << message_id.get_server_message_id_force().get();
-  }
-  if (message_id.is_local()) {
-    return string_builder << "local message " << message_id.get_server_message_id_force().get() << '.'
-                          << (message_id.get() & MessageId::FULL_TYPE_MASK);
-  }
-  if (message_id.is_yet_unsent()) {
-    return string_builder << "yet unsent message " << message_id.get_server_message_id_force().get() << '.'
-                          << (message_id.get() & MessageId::FULL_TYPE_MASK);
-  }
-  return string_builder << "bugged message " << message_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageId.h b/third-party/td/td/td/telegram/MessageId.h
deleted file mode 100644
index c832e9738e..0000000000
--- a/third-party/td/td/td/telegram/MessageId.h
+++ /dev/null
@@ -1,203 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ScheduledServerMessageId.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <limits>
-#include <type_traits>
-
-namespace td {
-
-enum class MessageType : int32 { None, Server, YetUnsent, Local };
-
-class MessageId {
-  int64 id = 0;
-
-  static constexpr int32 SERVER_ID_SHIFT = 20;
-  static constexpr int32 SHORT_TYPE_MASK = (1 << 2) - 1;
-  static constexpr int32 TYPE_MASK = (1 << 3) - 1;
-  static constexpr int32 FULL_TYPE_MASK = (1 << SERVER_ID_SHIFT) - 1;
-  static constexpr int32 SCHEDULED_MASK = 4;
-  static constexpr int32 TYPE_YET_UNSENT = 1;
-  static constexpr int32 TYPE_LOCAL = 2;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, MessageId message_id);
-
-  // ordinary message ID layout
-  // |-------31--------|---17---|1|--2-|
-  // |server_message_id|local_id|0|type|
-
-  // scheduled message ID layout
-  // |-------30-------|----18---|1|--2-|
-  // |send_date-2**30 |server_id|1|type|
-
-  // sponsored message ID layout
-  // |-------31--------|---17---|1|-2|
-  // |11111111111111111|local_id|0|10|
-
-  ServerMessageId get_server_message_id_force() const;
-
-  ScheduledServerMessageId get_scheduled_server_message_id_force() const {
-    CHECK(is_scheduled());
-    return ScheduledServerMessageId(static_cast<int32>((id >> 3) & ((1 << 18) - 1)));
-  }
-
- public:
-  MessageId() = default;
-
-  explicit MessageId(ServerMessageId server_message_id)
-      : id(static_cast<int64>(server_message_id.get()) << SERVER_ID_SHIFT) {
-  }
-
-  MessageId(ScheduledServerMessageId server_message_id, int32 send_date, bool force = false);
-
-  explicit constexpr MessageId(int64 message_id) : id(message_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  MessageId(T message_id) = delete;
-
-  static constexpr MessageId min() {
-    return MessageId(static_cast<int64>(MessageId::TYPE_YET_UNSENT));
-  }
-  static constexpr MessageId max() {
-    return MessageId(static_cast<int64>(std::numeric_limits<int32>::max()) << SERVER_ID_SHIFT);
-  }
-
-  static MessageId get_message_id(const telegram_api::Message *message_ptr, bool is_scheduled);
-
-  static MessageId get_message_id(const tl_object_ptr<telegram_api::Message> &message_ptr, bool is_scheduled);
-
-  static MessageId get_max_message_id(const vector<telegram_api::object_ptr<telegram_api::Message>> &messages);
-
-  static vector<MessageId> get_message_ids(const vector<int64> &input_message_ids);
-
-  static vector<int32> get_server_message_ids(const vector<MessageId> &message_ids);
-
-  static vector<int32> get_scheduled_server_message_ids(const vector<MessageId> &message_ids);
-
-  bool is_valid() const;
-
-  bool is_valid_scheduled() const;
-
-  bool is_valid_sponsored() const;
-
-  int64 get() const {
-    return id;
-  }
-
-  MessageType get_type() const;
-
-  bool is_scheduled() const {
-    return (id & SCHEDULED_MASK) != 0;
-  }
-
-  bool is_yet_unsent() const {
-    CHECK(is_valid() || is_scheduled());
-    return (id & SHORT_TYPE_MASK) == TYPE_YET_UNSENT;
-  }
-
-  bool is_local() const {
-    CHECK(is_valid() || is_scheduled());
-    return (id & SHORT_TYPE_MASK) == TYPE_LOCAL;
-  }
-
-  bool is_server() const {
-    CHECK(is_valid());
-    return (id & FULL_TYPE_MASK) == 0;
-  }
-
-  bool is_scheduled_server() const {
-    CHECK(is_valid_scheduled());
-    return (id & SHORT_TYPE_MASK) == 0;
-  }
-
-  bool is_any_server() const {
-    return is_scheduled() ? is_scheduled_server() : is_server();
-  }
-
-  ServerMessageId get_server_message_id() const {
-    CHECK(id == 0 || is_server());
-    return get_server_message_id_force();
-  }
-
-  // returns greatest server message identifier not bigger than this message identifier
-  MessageId get_prev_server_message_id() const {
-    CHECK(!is_scheduled());
-    return MessageId(id & ~FULL_TYPE_MASK);
-  }
-
-  // returns smallest server message identifier not less than this message identifier
-  MessageId get_next_server_message_id() const {
-    CHECK(!is_scheduled());
-    return MessageId((id + FULL_TYPE_MASK) & ~FULL_TYPE_MASK);
-  }
-
-  MessageId get_next_message_id(MessageType type) const;
-
-  ScheduledServerMessageId get_scheduled_server_message_id() const {
-    CHECK(is_scheduled_server());
-    return get_scheduled_server_message_id_force();
-  }
-
-  int32 get_scheduled_message_date() const {
-    CHECK(is_valid_scheduled());
-    return static_cast<int32>(id >> 21) + (1 << 30);
-  }
-
-  bool operator==(const MessageId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const MessageId &other) const {
-    return id != other.id;
-  }
-
-  friend bool operator<(const MessageId &lhs, const MessageId &rhs) {
-    CHECK(lhs.is_scheduled() == rhs.is_scheduled());
-    return lhs.id < rhs.id;
-  }
-
-  friend bool operator>(const MessageId &lhs, const MessageId &rhs) {
-    CHECK(lhs.is_scheduled() == rhs.is_scheduled());
-    return lhs.id > rhs.id;
-  }
-
-  friend bool operator<=(const MessageId &lhs, const MessageId &rhs) {
-    CHECK(lhs.is_scheduled() == rhs.is_scheduled());
-    return lhs.id <= rhs.id;
-  }
-
-  friend bool operator>=(const MessageId &lhs, const MessageId &rhs) {
-    CHECK(lhs.is_scheduled() == rhs.is_scheduled());
-    return lhs.id >= rhs.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_long();
-  }
-};
-
-struct MessageIdHash {
-  uint32 operator()(MessageId message_id) const {
-    return Hash<int64>()(message_id.get());
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageImportManager.cpp b/third-party/td/td/td/telegram/MessageImportManager.cpp
deleted file mode 100644
index 0bce37c9b1..0000000000
--- a/third-party/td/td/td/telegram/MessageImportManager.cpp
+++ /dev/null
@@ -1,551 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageImportManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/Random.h"
-
-namespace td {
-
-class CheckHistoryImportQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::MessageFileType>> promise_;
-
- public:
-  explicit CheckHistoryImportQuery(Promise<td_api::object_ptr<td_api::MessageFileType>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &message_file_head) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_checkHistoryImport(message_file_head)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_checkHistoryImport>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CheckHistoryImportQuery: " << to_string(ptr);
-    auto file_type = [&]() -> td_api::object_ptr<td_api::MessageFileType> {
-      if (ptr->pm_) {
-        return td_api::make_object<td_api::messageFileTypePrivate>(ptr->title_);
-      } else if (ptr->group_) {
-        return td_api::make_object<td_api::messageFileTypeGroup>(ptr->title_);
-      } else {
-        return td_api::make_object<td_api::messageFileTypeUnknown>();
-      }
-    }();
-    promise_.set_value(std::move(file_type));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CheckHistoryImportPeerQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit CheckHistoryImportPeerQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::messages_checkHistoryImportPeer(std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_checkHistoryImportPeer>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CheckHistoryImportPeerQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr->confirm_text_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "CheckHistoryImportPeerQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class InitHistoryImportQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  FileUploadId file_upload_id_;
-  DialogId dialog_id_;
-  vector<FileUploadId> attached_file_upload_ids_;
-
- public:
-  explicit InitHistoryImportQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, FileUploadId file_upload_id,
-            telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-            vector<FileUploadId> attached_file_upload_ids) {
-    CHECK(input_file != nullptr);
-    file_upload_id_ = file_upload_id;
-    dialog_id_ = dialog_id;
-    attached_file_upload_ids_ = std::move(attached_file_upload_ids);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::messages_initHistoryImport(
-        std::move(input_peer), std::move(input_file), narrow_cast<int32>(attached_file_upload_ids_.size()))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_initHistoryImport>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    td_->message_import_manager_->start_import_messages(dialog_id_, ptr->id_, std::move(attached_file_upload_ids_),
-                                                        std::move(promise_));
-
-    td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-  }
-
-  void on_error(Status status) final {
-    if (FileReferenceManager::is_file_reference_error(status)) {
-      LOG(ERROR) << "Receive file reference error " << status;
-    }
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      // TODO reupload the file
-    }
-
-    td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "InitHistoryImportQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UploadImportedMediaQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  int64 import_id_;
-  FileUploadId file_upload_id_;
-
- public:
-  explicit UploadImportedMediaQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int64 import_id, const string &file_name, FileUploadId file_upload_id,
-            tl_object_ptr<telegram_api::InputMedia> &&input_media) {
-    CHECK(input_media != nullptr);
-    dialog_id_ = dialog_id;
-    import_id_ = import_id;
-    file_upload_id_ = file_upload_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_uploadImportedMedia(
-        std::move(input_peer), import_id, file_name, std::move(input_media))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_uploadImportedMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    // ignore response
-
-    promise_.set_value(Unit());
-
-    td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-  }
-
-  void on_error(Status status) final {
-    if (FileReferenceManager::is_file_reference_error(status)) {
-      LOG(ERROR) << "Receive file reference error " << status;
-    }
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      // TODO reupload the file
-    }
-
-    td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "UploadImportedMediaQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class StartImportHistoryQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit StartImportHistoryQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int64 import_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_startHistoryImport(std::move(input_peer), import_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_startHistoryImport>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!result_ptr.ok()) {
-      return on_error(Status::Error(500, "Import history returned false"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "StartImportHistoryQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class MessageImportManager::UploadImportedMessagesCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->message_import_manager(), &MessageImportManager::on_upload_imported_messages,
-                       file_upload_id, std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->message_import_manager(), &MessageImportManager::on_upload_imported_messages_error,
-                       file_upload_id, std::move(error));
-  }
-};
-
-class MessageImportManager::UploadImportedMessageAttachmentCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->message_import_manager(), &MessageImportManager::on_upload_imported_message_attachment,
-                       file_upload_id, std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->message_import_manager(),
-                       &MessageImportManager::on_upload_imported_message_attachment_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-MessageImportManager::MessageImportManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_imported_messages_callback_ = std::make_shared<UploadImportedMessagesCallback>();
-  upload_imported_message_attachment_callback_ = std::make_shared<UploadImportedMessageAttachmentCallback>();
-}
-
-void MessageImportManager::tear_down() {
-  parent_.reset();
-}
-
-void MessageImportManager::get_message_file_type(const string &message_file_head,
-                                                 Promise<td_api::object_ptr<td_api::MessageFileType>> &&promise) {
-  td_->create_handler<CheckHistoryImportQuery>(std::move(promise))->send(message_file_head);
-}
-
-Status MessageImportManager::can_import_messages(DialogId dialog_id) {
-  TRY_STATUS(td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write, "can_import_messages"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (!td_->user_manager_->is_user_contact(dialog_id.get_user_id(), true)) {
-        return Status::Error(400, "User must be a mutual contact");
-      }
-      break;
-    case DialogType::Chat:
-      return Status::Error(400, "Basic groups must be upgraded to supergroups first");
-    case DialogType::Channel:
-      if (td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-        return Status::Error(400, "Can't import messages to channels");
-      }
-      if (!td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id()).can_change_info_and_settings()) {
-        return Status::Error(400, "Not enough rights to import messages");
-      }
-      break;
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  return Status::OK();
-}
-
-void MessageImportManager::get_message_import_confirmation_text(DialogId dialog_id, Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_import_messages(dialog_id));
-
-  td_->create_handler<CheckHistoryImportPeerQuery>(std::move(promise))->send(dialog_id);
-}
-
-void MessageImportManager::import_messages(DialogId dialog_id,
-                                           const td_api::object_ptr<td_api::InputFile> &message_file,
-                                           const vector<td_api::object_ptr<td_api::InputFile>> &attached_files,
-                                           Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_import_messages(dialog_id));
-
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(FileType::Document, message_file, dialog_id, false, false));
-
-  vector<FileUploadId> attached_file_upload_ids;
-  attached_file_upload_ids.reserve(attached_files.size());
-  for (auto &attached_file : attached_files) {
-    auto file_type = td_->file_manager_->guess_file_type(attached_file);
-    if (file_type != FileType::Animation && file_type != FileType::Audio && file_type != FileType::Document &&
-        file_type != FileType::Photo && file_type != FileType::Sticker && file_type != FileType::Video &&
-        file_type != FileType::VoiceNote) {
-      LOG(INFO) << "Skip attached file of type " << file_type;
-      continue;
-    }
-    TRY_RESULT_PROMISE(promise, attached_file_id,
-                       td_->file_manager_->get_input_file_id(file_type, attached_file, dialog_id, false, false));
-    attached_file_upload_ids.emplace_back(attached_file_id, FileManager::get_internal_upload_id());
-  }
-
-  upload_imported_messages(dialog_id, {file_id, FileManager::get_internal_upload_id()},
-                           std::move(attached_file_upload_ids), false, std::move(promise));
-}
-
-void MessageImportManager::upload_imported_messages(DialogId dialog_id, FileUploadId file_upload_id,
-                                                    vector<FileUploadId> attached_file_upload_ids, bool is_reupload,
-                                                    Promise<Unit> &&promise, vector<int> bad_parts) {
-  CHECK(file_upload_id.is_valid());
-  LOG(INFO) << "Ask to upload imported messages " << file_upload_id;
-  auto info = td::make_unique<UploadedImportedMessagesInfo>(dialog_id, std::move(attached_file_upload_ids), is_reupload,
-                                                            std::move(promise));
-  bool is_inserted = being_uploaded_imported_messages_.emplace(file_upload_id, std::move(info)).second;
-  CHECK(is_inserted);
-  // TODO use force_reupload if is_reupload
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_imported_messages_callback_, 1, 0,
-                                    false, true);
-}
-
-void MessageImportManager::on_upload_imported_messages(FileUploadId file_upload_id,
-                                                       telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Imported messages " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_imported_messages_.find(file_upload_id);
-  CHECK(it != being_uploaded_imported_messages_.end());
-  CHECK(it->second != nullptr);
-  DialogId dialog_id = it->second->dialog_id;
-  auto attached_file_upload_ids = std::move(it->second->attached_file_upload_ids);
-  bool is_reupload = it->second->is_reupload;
-  Promise<Unit> promise = std::move(it->second->promise);
-  being_uploaded_imported_messages_.erase(it);
-
-  auto status = td_->dialog_manager_->check_dialog_access_in_memory(dialog_id, false, AccessRights::Write);
-  if (status.is_error()) {
-    td_->file_manager_->cancel_upload(file_upload_id);
-    return promise.set_error(std::move(status));
-  }
-
-  FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  CHECK(!file_view.is_encrypted());
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (input_file == nullptr && main_remote_location != nullptr) {
-    if (main_remote_location->is_web()) {
-      return promise.set_error(Status::Error(400, "Can't use web file"));
-    }
-    if (is_reupload) {
-      return promise.set_error(Status::Error(400, "Failed to reupload the file"));
-    }
-
-    CHECK(file_view.get_type() == FileType::Document);
-    // delete file reference and forcely reupload the file
-    auto file_reference = FileManager::extract_file_reference(main_remote_location->as_input_document());
-    td_->file_manager_->delete_file_reference(file_upload_id.get_file_id(), file_reference);
-    upload_imported_messages(dialog_id, file_upload_id, std::move(attached_file_upload_ids), true, std::move(promise),
-                             {-1});
-    return;
-  }
-  CHECK(input_file != nullptr);
-
-  td_->create_handler<InitHistoryImportQuery>(std::move(promise))
-      ->send(dialog_id, file_upload_id, std::move(input_file), std::move(attached_file_upload_ids));
-}
-
-void MessageImportManager::on_upload_imported_messages_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(INFO) << "Imported messages " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_imported_messages_.find(file_upload_id);
-  CHECK(it != being_uploaded_imported_messages_.end());
-  Promise<Unit> promise = std::move(it->second->promise);
-  being_uploaded_imported_messages_.erase(it);
-
-  promise.set_error(std::move(status));
-}
-
-void MessageImportManager::start_import_messages(DialogId dialog_id, int64 import_id,
-                                                 vector<FileUploadId> &&attached_file_upload_ids,
-                                                 Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_STATUS_PROMISE(promise,
-                     td_->dialog_manager_->check_dialog_access_in_memory(dialog_id, false, AccessRights::Write));
-
-  auto pending_message_import = make_unique<PendingMessageImport>();
-  pending_message_import->dialog_id = dialog_id;
-  pending_message_import->import_id = import_id;
-  pending_message_import->promise = std::move(promise);
-
-  auto &multipromise = pending_message_import->upload_files_multipromise;
-
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || pending_message_imports_.count(random_id) > 0);
-  pending_message_imports_[random_id] = std::move(pending_message_import);
-
-  multipromise.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), random_id](Result<Unit> result) {
-    send_closure_later(actor_id, &MessageImportManager::on_imported_message_attachments_uploaded, random_id,
-                       std::move(result));
-  }));
-  auto lock_promise = multipromise.get_promise();
-
-  for (auto attached_file_upload_id : attached_file_upload_ids) {
-    upload_imported_message_attachment(dialog_id, import_id, attached_file_upload_id, false,
-                                       multipromise.get_promise());
-  }
-
-  lock_promise.set_value(Unit());
-}
-
-void MessageImportManager::upload_imported_message_attachment(DialogId dialog_id, int64 import_id,
-                                                              FileUploadId file_upload_id, bool is_reupload,
-                                                              Promise<Unit> &&promise, vector<int> bad_parts) {
-  CHECK(file_upload_id.is_valid());
-  LOG(INFO) << "Ask to upload imported message attached " << file_upload_id;
-  auto info =
-      td::make_unique<UploadedImportedMessageAttachmentInfo>(dialog_id, import_id, is_reupload, std::move(promise));
-  bool is_inserted = being_uploaded_imported_message_attachments_.emplace(file_upload_id, std::move(info)).second;
-  CHECK(is_inserted);
-  // TODO use force_reupload if is_reupload
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_imported_message_attachment_callback_,
-                                    1, 0, false, true);
-}
-
-void MessageImportManager::on_upload_imported_message_attachment(
-    FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Imported message attachment " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_imported_message_attachments_.find(file_upload_id);
-  CHECK(it != being_uploaded_imported_message_attachments_.end());
-  CHECK(it->second != nullptr);
-  DialogId dialog_id = it->second->dialog_id;
-  int64 import_id = it->second->import_id;
-  bool is_reupload = it->second->is_reupload;
-  Promise<Unit> promise = std::move(it->second->promise);
-  being_uploaded_imported_message_attachments_.erase(it);
-
-  FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  CHECK(!file_view.is_encrypted());
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (input_file == nullptr && main_remote_location != nullptr) {
-    if (main_remote_location->is_web()) {
-      return promise.set_error(Status::Error(400, "Can't use web file"));
-    }
-    if (is_reupload) {
-      return promise.set_error(Status::Error(400, "Failed to reupload the file"));
-    }
-
-    // delete file reference and forcely reupload the file
-    auto file_reference = file_view.get_type() == FileType::Photo
-                              ? FileManager::extract_file_reference(main_remote_location->as_input_photo())
-                              : FileManager::extract_file_reference(main_remote_location->as_input_document());
-    td_->file_manager_->delete_file_reference(file_upload_id.get_file_id(), file_reference);
-    upload_imported_message_attachment(dialog_id, import_id, file_upload_id, true, std::move(promise), {-1});
-    return;
-  }
-  CHECK(input_file != nullptr);
-
-  auto suggested_path = file_view.suggested_path();
-  const PathView path_view(suggested_path);
-  td_->create_handler<UploadImportedMediaQuery>(std::move(promise))
-      ->send(dialog_id, import_id, path_view.file_name().str(), file_upload_id,
-             get_message_content_fake_input_media(td_, std::move(input_file), file_upload_id.get_file_id()));
-}
-
-void MessageImportManager::on_upload_imported_message_attachment_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(INFO) << "Imported message attachment " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_imported_message_attachments_.find(file_upload_id);
-  CHECK(it != being_uploaded_imported_message_attachments_.end());
-  Promise<Unit> promise = std::move(it->second->promise);
-  being_uploaded_imported_message_attachments_.erase(it);
-
-  promise.set_error(std::move(status));
-}
-
-void MessageImportManager::on_imported_message_attachments_uploaded(int64 random_id, Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto it = pending_message_imports_.find(random_id);
-  CHECK(it != pending_message_imports_.end());
-
-  auto pending_message_import = std::move(it->second);
-  CHECK(pending_message_import != nullptr);
-
-  pending_message_imports_.erase(it);
-
-  if (result.is_error()) {
-    pending_message_import->promise.set_error(result.move_as_error());
-    return;
-  }
-
-  CHECK(pending_message_import->upload_files_multipromise.promise_count() == 0);
-
-  auto promise = std::move(pending_message_import->promise);
-  auto dialog_id = pending_message_import->dialog_id;
-
-  TRY_STATUS_PROMISE(promise,
-                     td_->dialog_manager_->check_dialog_access_in_memory(dialog_id, false, AccessRights::Write));
-
-  td_->create_handler<StartImportHistoryQuery>(std::move(promise))->send(dialog_id, pending_message_import->import_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageImportManager.h b/third-party/td/td/td/telegram/MessageImportManager.h
deleted file mode 100644
index 6bc7f0a1ba..0000000000
--- a/third-party/td/td/td/telegram/MessageImportManager.h
+++ /dev/null
@@ -1,116 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-namespace td {
-
-class Td;
-
-class MessageImportManager final : public Actor {
- public:
-  MessageImportManager(Td *td, ActorShared<> parent);
-
-  void get_message_file_type(const string &message_file_head,
-                             Promise<td_api::object_ptr<td_api::MessageFileType>> &&promise);
-
-  void get_message_import_confirmation_text(DialogId dialog_id, Promise<string> &&promise);
-
-  void import_messages(DialogId dialog_id, const td_api::object_ptr<td_api::InputFile> &message_file,
-                       const vector<td_api::object_ptr<td_api::InputFile>> &attached_files, Promise<Unit> &&promise);
-
-  void start_import_messages(DialogId dialog_id, int64 import_id, vector<FileUploadId> &&attached_file_upload_ids,
-                             Promise<Unit> &&promise);
-
- private:
-  void tear_down() final;
-
-  Status can_import_messages(DialogId dialog_id);
-
-  void upload_imported_messages(DialogId dialog_id, FileUploadId file_upload_id,
-                                vector<FileUploadId> attached_file_upload_ids, bool is_reupload,
-                                Promise<Unit> &&promise, vector<int> bad_parts = {});
-
-  void on_upload_imported_messages(FileUploadId file_upload_id,
-                                   telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_imported_messages_error(FileUploadId file_upload_id, Status status);
-
-  void upload_imported_message_attachment(DialogId dialog_id, int64 import_id, FileUploadId file_upload_id,
-                                          bool is_reupload, Promise<Unit> &&promise, vector<int> bad_parts = {});
-
-  void on_upload_imported_message_attachment(FileUploadId file_upload_id,
-                                             telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_imported_message_attachment_error(FileUploadId file_upload_id, Status status);
-
-  void on_imported_message_attachments_uploaded(int64 random_id, Result<Unit> &&result);
-
-  class UploadImportedMessagesCallback;
-  class UploadImportedMessageAttachmentCallback;
-
-  std::shared_ptr<UploadImportedMessagesCallback> upload_imported_messages_callback_;
-  std::shared_ptr<UploadImportedMessageAttachmentCallback> upload_imported_message_attachment_callback_;
-
-  struct UploadedImportedMessagesInfo {
-    DialogId dialog_id;
-    vector<FileUploadId> attached_file_upload_ids;
-    bool is_reupload;
-    Promise<Unit> promise;
-
-    UploadedImportedMessagesInfo(DialogId dialog_id, vector<FileUploadId> &&attached_file_upload_ids, bool is_reupload,
-                                 Promise<Unit> &&promise)
-        : dialog_id(dialog_id)
-        , attached_file_upload_ids(std::move(attached_file_upload_ids))
-        , is_reupload(is_reupload)
-        , promise(std::move(promise)) {
-    }
-  };
-  FlatHashMap<FileUploadId, unique_ptr<UploadedImportedMessagesInfo>, FileUploadIdHash>
-      being_uploaded_imported_messages_;
-
-  struct UploadedImportedMessageAttachmentInfo {
-    DialogId dialog_id;
-    int64 import_id;
-    bool is_reupload;
-    Promise<Unit> promise;
-
-    UploadedImportedMessageAttachmentInfo(DialogId dialog_id, int64 import_id, bool is_reupload,
-                                          Promise<Unit> &&promise)
-        : dialog_id(dialog_id), import_id(import_id), is_reupload(is_reupload), promise(std::move(promise)) {
-    }
-  };
-  FlatHashMap<FileUploadId, unique_ptr<UploadedImportedMessageAttachmentInfo>, FileUploadIdHash>
-      being_uploaded_imported_message_attachments_;
-
-  struct PendingMessageImport {
-    MultiPromiseActor upload_files_multipromise{"UploadAttachedFilesMultiPromiseActor"};
-    DialogId dialog_id;
-    int64 import_id = 0;
-    Promise<Unit> promise;
-  };
-  FlatHashMap<int64, unique_ptr<PendingMessageImport>> pending_message_imports_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageInputReplyTo.cpp b/third-party/td/td/td/telegram/MessageInputReplyTo.cpp
deleted file mode 100644
index 9e1c6f96e6..0000000000
--- a/third-party/td/td/td/telegram/MessageInputReplyTo.cpp
+++ /dev/null
@@ -1,174 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageInputReplyTo.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/InputDialogId.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-MessageInputReplyTo::~MessageInputReplyTo() = default;
-
-MessageInputReplyTo::MessageInputReplyTo(Td *td,
-                                         telegram_api::object_ptr<telegram_api::InputReplyTo> &&input_reply_to) {
-  if (input_reply_to == nullptr) {
-    return;
-  }
-  switch (input_reply_to->get_id()) {
-    case telegram_api::inputReplyToStory::ID: {
-      auto reply_to = telegram_api::move_object_as<telegram_api::inputReplyToStory>(input_reply_to);
-      auto dialog_id = InputDialogId(reply_to->peer_).get_dialog_id();
-      auto story_id = StoryId(reply_to->story_id_);
-      if (dialog_id.is_valid() && story_id.is_valid()) {
-        td->dialog_manager_->force_create_dialog(dialog_id, "MessageInputReplyTo", true);
-        story_full_id_ = {dialog_id, story_id};
-      }
-      break;
-    }
-    case telegram_api::inputReplyToMessage::ID: {
-      auto reply_to = telegram_api::move_object_as<telegram_api::inputReplyToMessage>(input_reply_to);
-      MessageId message_id(ServerMessageId(reply_to->reply_to_msg_id_));
-      if (!message_id.is_valid() && !message_id_.is_valid_scheduled()) {
-        return;
-      }
-      DialogId dialog_id;
-      if (reply_to->reply_to_peer_id_ != nullptr) {
-        dialog_id = InputDialogId(reply_to->reply_to_peer_id_).get_dialog_id();
-        if (!dialog_id.is_valid() || !td->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-          return;
-        }
-        td->dialog_manager_->force_create_dialog(dialog_id, "inputReplyToMessage");
-      }
-      message_id_ = message_id;
-      dialog_id_ = dialog_id;
-
-      quote_ = MessageQuote(td, reply_to);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void MessageInputReplyTo::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add_dialog_and_dependencies(dialog_id_);
-  quote_.add_dependencies(dependencies);
-  dependencies.add_dialog_and_dependencies(story_full_id_.get_dialog_id());  // just in case
-}
-
-telegram_api::object_ptr<telegram_api::InputReplyTo> MessageInputReplyTo::get_input_reply_to(
-    Td *td, MessageId top_thread_message_id) const {
-  if (story_full_id_.is_valid()) {
-    auto dialog_id = story_full_id_.get_dialog_id();
-    auto input_peer = td->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Failed to get input peer for " << story_full_id_;
-      return nullptr;
-    }
-    return telegram_api::make_object<telegram_api::inputReplyToStory>(std::move(input_peer),
-                                                                      story_full_id_.get_story_id().get());
-  }
-  auto reply_to_message_id = message_id_;
-  if (reply_to_message_id == MessageId()) {
-    if (top_thread_message_id == MessageId()) {
-      return nullptr;
-    }
-    reply_to_message_id = top_thread_message_id;
-  }
-  CHECK(reply_to_message_id.is_server());
-  int32 flags = 0;
-  if (top_thread_message_id != MessageId()) {
-    CHECK(top_thread_message_id.is_server());
-    flags |= telegram_api::inputReplyToMessage::TOP_MSG_ID_MASK;
-  }
-  telegram_api::object_ptr<telegram_api::InputPeer> input_peer;
-  if (dialog_id_ != DialogId()) {
-    input_peer = td->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Failed to get input peer for " << dialog_id_;
-      return nullptr;
-    }
-    flags |= telegram_api::inputReplyToMessage::REPLY_TO_PEER_ID_MASK;
-  }
-  auto result = telegram_api::make_object<telegram_api::inputReplyToMessage>(
-      flags, reply_to_message_id.get_server_message_id().get(), top_thread_message_id.get_server_message_id().get(),
-      std::move(input_peer), string(), Auto(), 0);
-  quote_.update_input_reply_to_message(td, result.get());
-  return std::move(result);
-}
-
-// only for draft messages
-td_api::object_ptr<td_api::InputMessageReplyTo> MessageInputReplyTo::get_input_message_reply_to_object(Td *td) const {
-  if (story_full_id_.is_valid()) {
-    return td_api::make_object<td_api::inputMessageReplyToStory>(
-        td->dialog_manager_->get_chat_id_object(story_full_id_.get_dialog_id(), "inputMessageReplyToStory"),
-        story_full_id_.get_story_id().get());
-  }
-  if (!message_id_.is_valid() && !message_id_.is_valid_scheduled()) {
-    return nullptr;
-  }
-  if (dialog_id_ != DialogId()) {
-    return td_api::make_object<td_api::inputMessageReplyToExternalMessage>(
-        td->dialog_manager_->get_chat_id_object(dialog_id_, "inputMessageReplyToExternalMessage"), message_id_.get(),
-        quote_.get_input_text_quote_object(td->user_manager_.get()));
-  }
-  return td_api::make_object<td_api::inputMessageReplyToMessage>(
-      message_id_.get(), quote_.get_input_text_quote_object(td->user_manager_.get()));
-}
-
-MessageId MessageInputReplyTo::get_same_chat_reply_to_message_id() const {
-  return dialog_id_ == DialogId() && (message_id_.is_valid() || message_id_.is_valid_scheduled()) ? message_id_
-                                                                                                  : MessageId();
-}
-
-MessageFullId MessageInputReplyTo::get_reply_message_full_id(DialogId owner_dialog_id) const {
-  if (!message_id_.is_valid() && !message_id_.is_valid_scheduled()) {
-    return {};
-  }
-  return {dialog_id_ != DialogId() ? dialog_id_ : owner_dialog_id, message_id_};
-}
-
-bool operator==(const MessageInputReplyTo &lhs, const MessageInputReplyTo &rhs) {
-  return lhs.message_id_ == rhs.message_id_ && lhs.dialog_id_ == rhs.dialog_id_ &&
-         lhs.story_full_id_ == rhs.story_full_id_ && lhs.quote_ == rhs.quote_;
-}
-
-bool operator!=(const MessageInputReplyTo &lhs, const MessageInputReplyTo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageInputReplyTo &input_reply_to) {
-  if (input_reply_to.message_id_.is_valid() || input_reply_to.message_id_.is_valid_scheduled()) {
-    string_builder << input_reply_to.message_id_;
-    if (input_reply_to.dialog_id_ != DialogId()) {
-      string_builder << " in " << input_reply_to.dialog_id_;
-    }
-    return string_builder << input_reply_to.quote_;
-  }
-  if (input_reply_to.story_full_id_.is_valid()) {
-    return string_builder << input_reply_to.story_full_id_;
-  }
-  return string_builder << "nothing";
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageInputReplyTo *input_reply_to_ptr) {
-  if (input_reply_to_ptr == nullptr) {
-    return string_builder << "nothing";
-  }
-  return string_builder << *input_reply_to_ptr;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageInputReplyTo.h b/third-party/td/td/td/telegram/MessageInputReplyTo.h
deleted file mode 100644
index b96a10c2d1..0000000000
--- a/third-party/td/td/td/telegram/MessageInputReplyTo.h
+++ /dev/null
@@ -1,114 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-
-class Td;
-
-class MessageInputReplyTo {
-  MessageId message_id_;
-  DialogId dialog_id_;
-  MessageQuote quote_;
-  // or
-  StoryFullId story_full_id_;
-
-  friend bool operator==(const MessageInputReplyTo &lhs, const MessageInputReplyTo &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageInputReplyTo &input_reply_to);
-
-  friend class RepliedMessageInfo;
-
- public:
-  MessageInputReplyTo() = default;
-  MessageInputReplyTo(const MessageInputReplyTo &) = delete;
-  MessageInputReplyTo &operator=(const MessageInputReplyTo &) = delete;
-  MessageInputReplyTo(MessageInputReplyTo &&) = default;
-  MessageInputReplyTo &operator=(MessageInputReplyTo &&) = default;
-  ~MessageInputReplyTo();
-
-  MessageInputReplyTo(MessageId message_id, DialogId dialog_id, MessageQuote quote)
-      : message_id_(message_id), dialog_id_(dialog_id), quote_(std::move(quote)) {
-  }
-
-  explicit MessageInputReplyTo(StoryFullId story_full_id) : story_full_id_(story_full_id) {
-  }
-
-  MessageInputReplyTo(Td *td, telegram_api::object_ptr<telegram_api::InputReplyTo> &&input_reply_to);
-
-  bool is_empty() const {
-    return !message_id_.is_valid() && !message_id_.is_valid_scheduled() && !story_full_id_.is_valid();
-  }
-
-  bool is_valid() const {
-    return !is_empty();
-  }
-
-  bool has_quote() const {
-    return !quote_.is_empty();
-  }
-
-  void set_quote(MessageQuote quote) {
-    quote_ = std::move(quote);
-  }
-
-  StoryFullId get_story_full_id() const {
-    return story_full_id_;
-  }
-
-  MessageInputReplyTo clone() const {
-    if (story_full_id_.is_valid()) {
-      return MessageInputReplyTo(story_full_id_);
-    }
-    return MessageInputReplyTo(message_id_, dialog_id_, quote_.clone());
-  }
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  telegram_api::object_ptr<telegram_api::InputReplyTo> get_input_reply_to(Td *td,
-                                                                          MessageId top_thread_message_id) const;
-
-  td_api::object_ptr<td_api::InputMessageReplyTo> get_input_message_reply_to_object(Td *td) const;
-
-  void set_message_id(MessageId new_message_id) {
-    CHECK(message_id_.is_valid() || message_id_.is_valid_scheduled());
-    message_id_ = new_message_id;
-  }
-
-  MessageId get_same_chat_reply_to_message_id() const;
-
-  MessageFullId get_reply_message_full_id(DialogId owner_dialog_id) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const MessageInputReplyTo &lhs, const MessageInputReplyTo &rhs);
-
-bool operator!=(const MessageInputReplyTo &lhs, const MessageInputReplyTo &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageInputReplyTo &input_reply_to);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageInputReplyTo *input_reply_to_ptr);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageInputReplyTo.hpp b/third-party/td/td/td/telegram/MessageInputReplyTo.hpp
deleted file mode 100644
index 5930e14bcf..0000000000
--- a/third-party/td/td/td/telegram/MessageInputReplyTo.hpp
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageInputReplyTo.h"
-
-#include "td/telegram/MessageOrigin.hpp"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/MessageQuote.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MessageInputReplyTo::store(StorerT &storer) const {
-  bool has_message_id = message_id_.is_valid();
-  bool has_story_full_id = story_full_id_.is_valid();
-  bool has_dialog_id = dialog_id_.is_valid();
-  bool has_quote = !quote_.is_empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_message_id);
-  STORE_FLAG(has_story_full_id);
-  STORE_FLAG(false);
-  STORE_FLAG(has_dialog_id);
-  STORE_FLAG(false);
-  STORE_FLAG(has_quote);
-  END_STORE_FLAGS();
-  if (has_message_id) {
-    td::store(message_id_, storer);
-  }
-  if (has_story_full_id) {
-    td::store(story_full_id_, storer);
-  }
-  if (has_dialog_id) {
-    td::store(dialog_id_, storer);
-  }
-  if (has_quote) {
-    td::store(quote_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageInputReplyTo::parse(ParserT &parser) {
-  bool has_message_id;
-  bool has_story_full_id;
-  bool has_quote_legacy;
-  bool has_dialog_id;
-  bool has_quote_position_legacy;
-  bool has_quote;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_message_id);
-  PARSE_FLAG(has_story_full_id);
-  PARSE_FLAG(has_quote_legacy);
-  PARSE_FLAG(has_dialog_id);
-  PARSE_FLAG(has_quote_position_legacy);
-  PARSE_FLAG(has_quote);
-  END_PARSE_FLAGS();
-  if (has_message_id) {
-    td::parse(message_id_, parser);
-  }
-  if (has_story_full_id) {
-    td::parse(story_full_id_, parser);
-  }
-  FormattedText quote_legacy;
-  if (has_quote_legacy) {
-    td::parse(quote_legacy, parser);
-  }
-  if (has_dialog_id) {
-    td::parse(dialog_id_, parser);
-  }
-  int32 quote_position_legacy = 0;
-  if (has_quote_position_legacy) {
-    td::parse(quote_position_legacy, parser);
-  }
-  if (has_quote) {
-    td::parse(quote_, parser);
-  } else if (has_quote_legacy) {
-    quote_ = MessageQuote(std::move(quote_legacy), quote_position_legacy);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageLinkInfo.h b/third-party/td/td/td/telegram/MessageLinkInfo.h
deleted file mode 100644
index 215165bacd..0000000000
--- a/third-party/td/td/td/telegram/MessageLinkInfo.h
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct MessageLinkInfo {
-  string username;
-  // or
-  ChannelId channel_id;
-
-  MessageId message_id;
-  bool is_single = false;
-  int32 media_timestamp = 0;
-
-  MessageId top_thread_message_id;
-
-  DialogId comment_dialog_id;
-  MessageId comment_message_id;
-  bool for_comment = false;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageOrigin.cpp b/third-party/td/td/td/telegram/MessageOrigin.cpp
deleted file mode 100644
index 14c4d33912..0000000000
--- a/third-party/td/td/td/telegram/MessageOrigin.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageOrigin.h"
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-Result<MessageOrigin> MessageOrigin::get_message_origin(
-    Td *td, telegram_api::object_ptr<telegram_api::messageFwdHeader> &&forward_header) {
-  CHECK(forward_header != nullptr);
-  DialogId sender_dialog_id;
-  if (forward_header->from_id_ != nullptr) {
-    sender_dialog_id = DialogId(forward_header->from_id_);
-    if (!sender_dialog_id.is_valid()) {
-      LOG(ERROR) << "Receive invalid sender identifier in message forward header: "
-                 << oneline(to_string(forward_header));
-      sender_dialog_id = DialogId();
-    }
-  }
-
-  MessageId message_id;
-  if (forward_header->channel_post_ != 0) {
-    message_id = MessageId(ServerMessageId(forward_header->channel_post_));
-    if (!message_id.is_valid()) {
-      LOG(ERROR) << "Receive " << message_id << " in message forward header: " << oneline(to_string(forward_header));
-      message_id = MessageId();
-    }
-  }
-
-  string author_signature = std::move(forward_header->post_author_);
-  string sender_name = std::move(forward_header->from_name_);
-
-  UserId sender_user_id;
-  if (sender_dialog_id.get_type() == DialogType::User) {
-    sender_user_id = sender_dialog_id.get_user_id();
-    sender_dialog_id = DialogId();
-  }
-  if (!sender_dialog_id.is_valid()) {
-    if (sender_user_id.is_valid()) {
-      if (message_id.is_valid()) {
-        LOG(ERROR) << "Receive non-empty message identifier in message forward header: "
-                   << oneline(to_string(forward_header));
-        message_id = MessageId();
-      }
-    } else if (sender_name.empty()) {
-      LOG(ERROR) << "Receive wrong message forward header: " << oneline(to_string(forward_header));
-      return Status::Error("Receive empty forward header");
-    }
-  } else if (sender_dialog_id.get_type() != DialogType::Channel) {
-    LOG(ERROR) << "Receive wrong message forward header with non-channel sender: "
-               << oneline(to_string(forward_header));
-    return Status::Error("Forward from a non-channel");
-  } else {
-    auto channel_id = sender_dialog_id.get_channel_id();
-    if (!td->chat_manager_->have_channel(channel_id)) {
-      LOG(ERROR) << "Receive forward from " << (td->chat_manager_->have_min_channel(channel_id) ? "min" : "unknown")
-                 << ' ' << channel_id;
-    }
-    td->dialog_manager_->force_create_dialog(sender_dialog_id, "get_message_origin", true);
-    CHECK(!sender_user_id.is_valid());
-  }
-
-  return MessageOrigin{sender_user_id, sender_dialog_id, message_id, std::move(author_signature),
-                       std::move(sender_name)};
-}
-
-td_api::object_ptr<td_api::MessageOrigin> MessageOrigin::get_message_origin_object(const Td *td) const {
-  if (is_sender_hidden()) {
-    return td_api::make_object<td_api::messageOriginHiddenUser>(sender_name_.empty() ? author_signature_
-                                                                                     : sender_name_);
-  }
-  if (message_id_.is_valid()) {
-    return td_api::make_object<td_api::messageOriginChannel>(
-        td->dialog_manager_->get_chat_id_object(sender_dialog_id_, "messageOriginChannel"), message_id_.get(),
-        author_signature_);
-  }
-  if (sender_dialog_id_.is_valid()) {
-    return td_api::make_object<td_api::messageOriginChat>(
-        td->dialog_manager_->get_chat_id_object(sender_dialog_id_, "messageOriginChat"),
-        sender_name_.empty() ? author_signature_ : sender_name_);
-  }
-  return td_api::make_object<td_api::messageOriginUser>(
-      td->user_manager_->get_user_id_object(sender_user_id_, "messageOriginUser"));
-}
-
-bool MessageOrigin::is_sender_hidden() const {
-  if (!sender_name_.empty()) {
-    return true;
-  }
-  DialogId hidden_sender_dialog_id(ChannelId(static_cast<int64>(G()->is_test_dc() ? 10460537 : 1228946795)));
-  return sender_dialog_id_ == hidden_sender_dialog_id && !author_signature_.empty() && !message_id_.is_valid();
-}
-
-MessageFullId MessageOrigin::get_message_full_id() const {
-  if (!message_id_.is_valid() || !sender_dialog_id_.is_valid() || is_sender_hidden()) {
-    return MessageFullId();
-  }
-  return {sender_dialog_id_, message_id_};
-}
-
-DialogId MessageOrigin::get_sender() const {
-  if (is_sender_hidden()) {
-    return DialogId();
-  }
-  return message_id_.is_valid() || sender_dialog_id_.is_valid() ? sender_dialog_id_ : DialogId(sender_user_id_);
-}
-
-void MessageOrigin::hide_sender_if_needed(Td *td) {
-  if (!is_sender_hidden() && !message_id_.is_valid() && !sender_dialog_id_.is_valid()) {
-    auto private_forward_name = td->user_manager_->get_user_private_forward_name(sender_user_id_);
-    if (!private_forward_name.empty()) {
-      sender_user_id_ = UserId();
-      sender_name_ = std::move(private_forward_name);
-    }
-  }
-}
-
-void MessageOrigin::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add(sender_user_id_);
-  dependencies.add_dialog_and_dependencies(sender_dialog_id_);
-}
-
-void MessageOrigin::add_user_ids(vector<UserId> &user_ids) const {
-  if (sender_user_id_.is_valid()) {
-    user_ids.push_back(sender_user_id_);
-  }
-}
-
-void MessageOrigin::add_channel_ids(vector<ChannelId> &channel_ids) const {
-  if (sender_dialog_id_.get_type() == DialogType::Channel) {
-    channel_ids.push_back(sender_dialog_id_.get_channel_id());
-  }
-}
-
-bool operator==(const MessageOrigin &lhs, const MessageOrigin &rhs) {
-  return lhs.sender_user_id_ == rhs.sender_user_id_ && lhs.sender_dialog_id_ == rhs.sender_dialog_id_ &&
-         lhs.message_id_ == rhs.message_id_ && lhs.author_signature_ == rhs.author_signature_ &&
-         lhs.sender_name_ == rhs.sender_name_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageOrigin &origin) {
-  string_builder << "sender " << origin.sender_user_id_;
-  if (!origin.author_signature_.empty() || !origin.sender_name_.empty()) {
-    string_builder << '(' << origin.author_signature_ << '/' << origin.sender_name_ << ')';
-  }
-  if (origin.sender_dialog_id_.is_valid()) {
-    string_builder << ", source ";
-    if (origin.message_id_.is_valid()) {
-      string_builder << MessageFullId(origin.sender_dialog_id_, origin.message_id_);
-    } else {
-      string_builder << origin.sender_dialog_id_;
-    }
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageOrigin.h b/third-party/td/td/td/telegram/MessageOrigin.h
deleted file mode 100644
index bdd5d15552..0000000000
--- a/third-party/td/td/td/telegram/MessageOrigin.h
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-
-class Td;
-
-class MessageOrigin {
-  UserId sender_user_id_;
-  DialogId sender_dialog_id_;
-  MessageId message_id_;
-  string author_signature_;
-  string sender_name_;
-
- public:
-  MessageOrigin() = default;
-
-  MessageOrigin(UserId sender_user_id, DialogId sender_dialog_id, MessageId message_id, string &&author_signature,
-                string &&sender_name)
-      : sender_user_id_(sender_user_id)
-      , sender_dialog_id_(sender_dialog_id)
-      , message_id_(message_id)
-      , author_signature_(std::move(author_signature))
-      , sender_name_(std::move(sender_name)) {
-  }
-
-  static Result<MessageOrigin> get_message_origin(
-      Td *td, telegram_api::object_ptr<telegram_api::messageFwdHeader> &&forward_header);
-
-  bool is_empty() const {
-    return !sender_user_id_.is_valid() && !sender_dialog_id_.is_valid() && !message_id_.is_valid() &&
-           author_signature_.empty() && sender_name_.empty();
-  }
-
-  td_api::object_ptr<td_api::MessageOrigin> get_message_origin_object(const Td *td) const;
-
-  bool is_sender_hidden() const;
-
-  MessageFullId get_message_full_id() const;
-
-  const string &get_sender_name() const {
-    return sender_name_;
-  }
-
-  bool is_channel_post() const {
-    return message_id_.is_valid();
-  }
-
-  bool has_sender_signature() const {
-    return !author_signature_.empty() || !sender_name_.empty();
-  }
-
-  DialogId get_sender() const;
-
-  void hide_sender_if_needed(Td *td);
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  void add_user_ids(vector<UserId> &user_ids) const;
-
-  void add_channel_ids(vector<ChannelId> &channel_ids) const;
-
-  friend bool operator==(const MessageOrigin &lhs, const MessageOrigin &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageOrigin &origin);
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const MessageOrigin &lhs, const MessageOrigin &rhs);
-
-inline bool operator!=(const MessageOrigin &lhs, const MessageOrigin &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageOrigin &origin);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageOrigin.hpp b/third-party/td/td/td/telegram/MessageOrigin.hpp
deleted file mode 100644
index 1d96d159d3..0000000000
--- a/third-party/td/td/td/telegram/MessageOrigin.hpp
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageOrigin.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MessageOrigin::store(StorerT &storer) const {
-  bool has_sender_user_id = sender_user_id_.is_valid();
-  bool has_sender_dialog_id = sender_dialog_id_.is_valid();
-  bool has_message_id = message_id_.is_valid();
-  bool has_author_signature = !author_signature_.empty();
-  bool has_sender_name = !sender_name_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_sender_user_id);
-  STORE_FLAG(has_sender_dialog_id);
-  STORE_FLAG(has_message_id);
-  STORE_FLAG(has_author_signature);
-  STORE_FLAG(has_sender_name);
-  END_STORE_FLAGS();
-  if (has_sender_user_id) {
-    td::store(sender_user_id_, storer);
-  }
-  if (has_sender_dialog_id) {
-    td::store(sender_dialog_id_, storer);
-  }
-  if (has_message_id) {
-    td::store(message_id_, storer);
-  }
-  if (has_author_signature) {
-    td::store(author_signature_, storer);
-  }
-  if (has_sender_name) {
-    td::store(sender_name_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageOrigin::parse(ParserT &parser) {
-  bool has_sender_user_id;
-  bool has_sender_dialog_id;
-  bool has_message_id;
-  bool has_author_signature;
-  bool has_sender_name;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_sender_user_id);
-  PARSE_FLAG(has_sender_dialog_id);
-  PARSE_FLAG(has_message_id);
-  PARSE_FLAG(has_author_signature);
-  PARSE_FLAG(has_sender_name);
-  END_PARSE_FLAGS();
-  if (has_sender_user_id) {
-    td::parse(sender_user_id_, parser);
-  }
-  if (has_sender_dialog_id) {
-    td::parse(sender_dialog_id_, parser);
-    CHECK(sender_dialog_id_.get_type() == DialogType::Channel);
-  }
-  if (has_message_id) {
-    td::parse(message_id_, parser);
-  }
-  if (has_author_signature) {
-    td::parse(author_signature_, parser);
-  }
-  if (has_sender_name) {
-    td::parse(sender_name_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageQueryManager.cpp b/third-party/td/td/td/telegram/MessageQueryManager.cpp
deleted file mode 100644
index 979ed45b57..0000000000
--- a/third-party/td/td/td/telegram/MessageQueryManager.cpp
+++ /dev/null
@@ -1,3163 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageQueryManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/FactCheck.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/HashtagHints.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageReaction.h"
-#include "td/telegram/MessageSearchOffset.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesInfo.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/PublicDialogType.h"
-#include "td/telegram/SecretChatsManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Version.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-
-#include "td/actor/MultiPromise.h"
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-#include <limits>
-#include <map>
-#include <type_traits>
-
-namespace td {
-
-class UploadCoverQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BusinessConnectionId business_connection_id_;
-  DialogId dialog_id_;
-  Photo photo_;
-  FileUploadId file_upload_id_;
-  bool was_uploaded_ = false;
-
- public:
-  explicit UploadCoverQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, DialogId dialog_id, Photo &&photo, FileUploadId file_upload_id,
-            telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-    CHECK(input_media != nullptr);
-    business_connection_id_ = business_connection_id;
-    dialog_id_ = dialog_id;
-    photo_ = std::move(photo);
-    file_upload_id_ = file_upload_id;
-    was_uploaded_ = FileManager::extract_was_uploaded(input_media);
-
-    if (was_uploaded_ && false) {
-      return on_error(Status::Error(400, "FILE_PART_1_MISSING"));
-    }
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(
-        dialog_id, business_connection_id_.is_valid() ? AccessRights::Know : AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no access to the chat"));
-    }
-
-    int32 flags = 0;
-    if (business_connection_id_.is_valid()) {
-      flags |= telegram_api::messages_uploadMedia::BUSINESS_CONNECTION_ID_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_uploadMedia(
-        flags, business_connection_id_.get(), std::move(input_peer), std::move(input_media))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_uploadMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UploadCoverQuery: " << to_string(ptr);
-    td_->message_query_manager_->complete_upload_message_cover(business_connection_id_, dialog_id_, std::move(photo_),
-                                                               file_upload_id_, std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for UploadCoverQuery: " << status;
-
-    if (was_uploaded_) {
-      auto bad_parts = FileManager::get_missing_file_parts(status);
-      if (!bad_parts.empty()) {
-        td_->message_query_manager_->upload_message_cover(business_connection_id_, dialog_id_, std::move(photo_),
-                                                          file_upload_id_, std::move(promise_), std::move(bad_parts));
-        return;
-      } else {
-        td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id_, status);
-      }
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReportMessageDeliveryQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-
- public:
-  void send(MessageFullId message_full_id, bool from_push) {
-    dialog_id_ = message_full_id.get_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(message_full_id.get_dialog_id(), AccessRights::Read);
-    if (input_peer == nullptr) {
-      return;
-    }
-    int32 flags = 0;
-    if (from_push) {
-      flags |= telegram_api::messages_reportMessagesDelivery::PUSH_MASK;
-    }
-    auto message_id = message_full_id.get_message_id();
-    CHECK(message_id.is_valid());
-    CHECK(message_id.is_server());
-    send_query(G()->net_query_creator().create(telegram_api::messages_reportMessagesDelivery(
-        flags, false /*ignored*/, std::move(input_peer), {message_id.get_server_message_id().get()})));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_reportMessagesDelivery>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    // ok
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReportMessageDeliveryQuery");
-  }
-};
-
-class GetExtendedMediaQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  vector<MessageId> message_ids_;
-
- public:
-  void send(DialogId dialog_id, vector<MessageId> &&message_ids) {
-    dialog_id_ = dialog_id;
-    message_ids_ = std::move(message_ids);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_getExtendedMedia(
-        std::move(input_peer), MessageId::get_server_message_ids(message_ids_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getExtendedMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetExtendedMediaQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-    td_->message_query_manager_->finish_get_message_extended_media(dialog_id_, message_ids_);
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetExtendedMediaQuery");
-    td_->message_query_manager_->finish_get_message_extended_media(dialog_id_, message_ids_);
-  }
-};
-
-class GetFactCheckQuery final : public Td::ResultHandler {
-  Promise<vector<telegram_api::object_ptr<telegram_api::factCheck>>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetFactCheckQuery(Promise<vector<telegram_api::object_ptr<telegram_api::factCheck>>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const vector<MessageId> &message_ids) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getFactCheck(std::move(input_peer), MessageId::get_server_message_ids(message_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getFactCheck>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetFactCheckQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetFactCheckQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditMessageFactCheckQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit EditMessageFactCheckQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id, const FormattedText &text) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    CHECK(message_id.is_valid());
-    CHECK(message_id.is_server());
-    auto server_message_id = message_id.get_server_message_id().get();
-    if (text.text.empty()) {
-      send_query(G()->net_query_creator().create(
-          telegram_api::messages_deleteFactCheck(std::move(input_peer), server_message_id)));
-    } else {
-      send_query(G()->net_query_creator().create(telegram_api::messages_editFactCheck(
-          std::move(input_peer), server_message_id,
-          get_input_text_with_entities(td_->user_manager_.get(), text, "messages_editFactCheck"))));
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_deleteFactCheck::ReturnType,
-                               telegram_api::messages_editFactCheck::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_editFactCheck>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditMessageFactCheckQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditMessageFactCheckQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SearchMessagesGlobalQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundMessages>> promise_;
-  string query_;
-  int32 offset_date_;
-  DialogId offset_dialog_id_;
-  MessageId offset_message_id_;
-  int32 limit_;
-  MessageSearchFilter filter_;
-  int32 min_date_;
-  int32 max_date_;
-
- public:
-  explicit SearchMessagesGlobalQuery(Promise<td_api::object_ptr<td_api::foundMessages>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(FolderId folder_id, bool ignore_folder_id, const string &query, int32 offset_date,
-            DialogId offset_dialog_id, MessageId offset_message_id, int32 limit, MessageSearchFilter filter,
-            const td_api::object_ptr<td_api::SearchMessagesChatTypeFilter> &dialog_type_filter, int32 min_date,
-            int32 max_date) {
-    query_ = query;
-    offset_date_ = offset_date;
-    offset_dialog_id_ = offset_dialog_id;
-    offset_message_id_ = offset_message_id;
-    limit_ = limit;
-    filter_ = filter;
-    min_date_ = min_date;
-    max_date_ = max_date;
-
-    auto input_peer = DialogManager::get_input_peer_force(offset_dialog_id);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = 0;
-    if (!ignore_folder_id) {
-      flags |= telegram_api::messages_searchGlobal::FOLDER_ID_MASK;
-    }
-    if (dialog_type_filter != nullptr) {
-      switch (dialog_type_filter->get_id()) {
-        case td_api::searchMessagesChatTypeFilterPrivate::ID:
-          flags |= telegram_api::messages_searchGlobal::USERS_ONLY_MASK;
-          break;
-        case td_api::searchMessagesChatTypeFilterGroup::ID:
-          flags |= telegram_api::messages_searchGlobal::GROUPS_ONLY_MASK;
-          break;
-        case td_api::searchMessagesChatTypeFilterChannel::ID:
-          flags |= telegram_api::messages_searchGlobal::BROADCASTS_ONLY_MASK;
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_searchGlobal(
-        flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, folder_id.get(), query,
-        get_input_messages_filter(filter), min_date_, max_date_, offset_date_, std::move(input_peer),
-        offset_message_id.get_server_message_id().get(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_searchGlobal>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, DialogId(), result_ptr.move_as_ok(), "SearchMessagesGlobalQuery");
-    td_->messages_manager_->get_channel_differences_if_needed(
-        std::move(info),
-        PromiseCreator::lambda([actor_id = td_->message_query_manager_actor_.get(), query = std::move(query_),
-                                offset_date = offset_date_, offset_dialog_id = offset_dialog_id_,
-                                offset_message_id = offset_message_id_, limit = limit_, filter = std::move(filter_),
-                                min_date = min_date_, max_date = max_date_,
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &MessageQueryManager::on_get_messages_search_result, query, offset_date,
-                         offset_dialog_id, offset_message_id, limit, filter, min_date, max_date, info.total_count,
-                         std::move(info.messages), info.next_rate, std::move(promise));
-          }
-        }),
-        "SearchMessagesGlobalQuery");
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "SEARCH_QUERY_EMPTY") {
-      return promise_.set_value(td_->messages_manager_->get_found_messages_object({}, "SearchMessagesGlobalQuery"));
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SearchSentMediaQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundMessages>> promise_;
-
- public:
-  explicit SearchSentMediaQuery(Promise<td_api::object_ptr<td_api::foundMessages>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &query, int32 limit) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_searchSentMedia(
-        query, telegram_api::make_object<telegram_api::inputMessagesFilterDocument>(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_searchSentMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, DialogId(), result_ptr.move_as_ok(), "SearchSentMediaQuery");
-    td_->messages_manager_->get_channel_differences_if_needed(
-        std::move(info),
-        PromiseCreator::lambda([actor_id = td_->message_query_manager_actor_.get(),
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &MessageQueryManager::on_get_outgoing_document_messages, std::move(info.messages),
-                         std::move(promise));
-          }
-        }),
-        "SearchSentMediaQuery");
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SearchPostsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundMessages>> promise_;
-  string hashtag_;
-  MessageSearchOffset offset_;
-  int32 limit_;
-
- public:
-  explicit SearchPostsQuery(Promise<td_api::object_ptr<td_api::foundMessages>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &hashtag, MessageSearchOffset offset, int32 limit) {
-    hashtag_ = hashtag;
-    offset_ = offset;
-    limit_ = limit;
-
-    auto input_peer = DialogManager::get_input_peer_force(offset.dialog_id_);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(telegram_api::channels_searchPosts(
-        hashtag, offset.date_, std::move(input_peer), offset.message_id_.get_server_message_id().get(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_searchPosts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, DialogId(), result_ptr.move_as_ok(), "SearchPostsQuery");
-    td_->messages_manager_->get_channel_differences_if_needed(
-        std::move(info),
-        PromiseCreator::lambda([actor_id = td_->message_query_manager_actor_.get(), hashtag = std::move(hashtag_),
-                                offset = offset_, limit = limit_,
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &MessageQueryManager::on_get_hashtag_search_result, hashtag, offset, limit,
-                         info.total_count, std::move(info.messages), info.next_rate, std::move(promise));
-          }
-        }),
-        "SearchPostsQuery");
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "SEARCH_QUERY_EMPTY") {
-      return promise_.set_value(td_->messages_manager_->get_found_messages_object({}, "SearchPostsQuery"));
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetRecentLocationsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::messages>> promise_;
-  DialogId dialog_id_;
-  int32 limit_;
-
- public:
-  explicit GetRecentLocationsQuery(Promise<td_api::object_ptr<td_api::messages>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int32 limit) {
-    dialog_id_ = dialog_id;
-    limit_ = limit;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getRecentLocations(std::move(input_peer), limit, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getRecentLocations>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, dialog_id_, result_ptr.move_as_ok(), "GetRecentLocationsQuery");
-    td_->messages_manager_->get_channel_difference_if_needed(
-        dialog_id_, std::move(info),
-        PromiseCreator::lambda([actor_id = td_->message_query_manager_actor_.get(), dialog_id = dialog_id_,
-                                limit = limit_, promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &MessageQueryManager::on_get_recent_locations, dialog_id, limit, info.total_count,
-                         std::move(info.messages), std::move(promise));
-          }
-        }),
-        "GetRecentLocationsQuery");
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetRecentLocationsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetMessagePositionQuery final : public Td::ResultHandler {
-  Promise<int32> promise_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-  MessageId top_thread_message_id_;
-  SavedMessagesTopicId saved_messages_topic_id_;
-  MessageSearchFilter filter_;
-
- public:
-  explicit GetMessagePositionQuery(Promise<int32> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id, MessageSearchFilter filter, MessageId top_thread_message_id,
-            SavedMessagesTopicId saved_messages_topic_id) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    dialog_id_ = dialog_id;
-    message_id_ = message_id;
-    top_thread_message_id_ = top_thread_message_id;
-    saved_messages_topic_id_ = saved_messages_topic_id;
-    filter_ = filter;
-
-    if (filter == MessageSearchFilter::Empty && !top_thread_message_id.is_valid()) {
-      if (saved_messages_topic_id.is_valid()) {
-        send_query(G()->net_query_creator().create(telegram_api::messages_getSavedHistory(
-            saved_messages_topic_id.get_input_peer(td_), message_id.get_server_message_id().get(), 0, -1, 1, 0, 0, 0)));
-      } else {
-        send_query(G()->net_query_creator().create(telegram_api::messages_getHistory(
-            std::move(input_peer), message_id.get_server_message_id().get(), 0, -1, 1, 0, 0, 0)));
-      }
-    } else {
-      int32 flags = 0;
-      tl_object_ptr<telegram_api::InputPeer> saved_input_peer;
-      if (saved_messages_topic_id.is_valid()) {
-        flags |= telegram_api::messages_search::SAVED_PEER_ID_MASK;
-        saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-        CHECK(saved_input_peer != nullptr);
-      }
-      if (top_thread_message_id.is_valid()) {
-        flags |= telegram_api::messages_search::TOP_MSG_ID_MASK;
-      }
-      send_query(G()->net_query_creator().create(telegram_api::messages_search(
-          flags, std::move(input_peer), string(), nullptr, std::move(saved_input_peer), Auto(),
-          top_thread_message_id.get_server_message_id().get(), get_input_messages_filter(filter), 0,
-          std::numeric_limits<int32>::max(), message_id.get_server_message_id().get(), -1, 1,
-          std::numeric_limits<int32>::max(), 0, 0)));
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_search>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto messages_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetMessagePositionQuery: " << to_string(messages_ptr);
-    switch (messages_ptr->get_id()) {
-      case telegram_api::messages_messages::ID: {
-        auto messages = telegram_api::move_object_as<telegram_api::messages_messages>(messages_ptr);
-        if (messages->messages_.size() != 1 ||
-            MessageId::get_message_id(messages->messages_[0], false) != message_id_) {
-          return promise_.set_error(Status::Error(400, "Message not found by the filter"));
-        }
-        return promise_.set_value(narrow_cast<int32>(messages->messages_.size()));
-      }
-      case telegram_api::messages_messagesSlice::ID: {
-        auto messages = telegram_api::move_object_as<telegram_api::messages_messagesSlice>(messages_ptr);
-        if (messages->messages_.size() != 1 ||
-            MessageId::get_message_id(messages->messages_[0], false) != message_id_) {
-          return promise_.set_error(Status::Error(400, "Message not found by the filter"));
-        }
-        if (messages->offset_id_offset_ <= 0) {
-          LOG(ERROR) << "Failed to receive position for " << message_id_ << " in thread of " << top_thread_message_id_
-                     << " and in " << saved_messages_topic_id_ << " in " << dialog_id_ << " by " << filter_;
-          return promise_.set_error(Status::Error(400, "Message position is unknown"));
-        }
-        return promise_.set_value(std::move(messages->offset_id_offset_));
-      }
-      case telegram_api::messages_channelMessages::ID: {
-        auto messages = telegram_api::move_object_as<telegram_api::messages_channelMessages>(messages_ptr);
-        if (messages->messages_.size() != 1 ||
-            MessageId::get_message_id(messages->messages_[0], false) != message_id_) {
-          return promise_.set_error(Status::Error(400, "Message not found by the filter"));
-        }
-        if (messages->offset_id_offset_ <= 0) {
-          LOG(ERROR) << "Failed to receive position for " << message_id_ << " in " << dialog_id_ << " by " << filter_;
-          return promise_.set_error(Status::Error(500, "Message position is unknown"));
-        }
-        return promise_.set_value(std::move(messages->offset_id_offset_));
-      }
-      case telegram_api::messages_messagesNotModified::ID:
-        LOG(ERROR) << "Server returned messagesNotModified in response to GetMessagePositionQuery";
-        return promise_.set_error(Status::Error(500, "Receive invalid response"));
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetMessagePositionQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetOutboxReadDateQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::MessageReadDate>> promise_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-
- public:
-  explicit GetOutboxReadDateQuery(Promise<td_api::object_ptr<td_api::MessageReadDate>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id) {
-    dialog_id_ = dialog_id;
-    message_id_ = message_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getOutboxReadDate(std::move(input_peer), message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getOutboxReadDate>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    promise_.set_value(td_api::make_object<td_api::messageReadDateRead>(ptr->date_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USER_PRIVACY_RESTRICTED") {
-      return promise_.set_value(td_api::make_object<td_api::messageReadDateUserPrivacyRestricted>());
-    }
-    if (status.message() == "YOUR_PRIVACY_RESTRICTED") {
-      return promise_.set_value(td_api::make_object<td_api::messageReadDateMyPrivacyRestricted>());
-    }
-    if (status.message() == "MESSAGE_TOO_OLD") {
-      return promise_.set_value(td_api::make_object<td_api::messageReadDateTooOld>());
-    }
-
-    td_->messages_manager_->on_get_message_error(dialog_id_, message_id_, status, "GetOutboxReadDateQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetMessageReadParticipantsQuery final : public Td::ResultHandler {
-  Promise<MessageViewers> promise_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-
- public:
-  explicit GetMessageReadParticipantsQuery(Promise<MessageViewers> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id) {
-    dialog_id_ = dialog_id;
-    message_id_ = message_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::messages_getMessageReadParticipants(
-        std::move(input_peer), message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getMessageReadParticipants>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(MessageViewers(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->messages_manager_->on_get_message_error(dialog_id_, message_id_, status, "GetMessageReadParticipantsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetMessagesViewsQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  vector<MessageId> message_ids_;
-
- public:
-  void send(DialogId dialog_id, vector<MessageId> &&message_ids, bool increment_view_counter) {
-    dialog_id_ = dialog_id;
-    message_ids_ = std::move(message_ids);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_getMessagesViews(
-        std::move(input_peer), MessageId::get_server_message_ids(message_ids_), increment_view_counter)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getMessagesViews>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    auto interaction_infos = std::move(result->views_);
-    if (message_ids_.size() != interaction_infos.size()) {
-      return on_error(Status::Error(500, "Wrong number of message views returned"));
-    }
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetMessagesViewsQuery");
-    td_->chat_manager_->on_get_chats(std::move(result->chats_), "GetMessagesViewsQuery");
-    for (size_t i = 0; i < message_ids_.size(); i++) {
-      MessageFullId message_full_id{dialog_id_, message_ids_[i]};
-      auto *info = interaction_infos[i].get();
-      td_->messages_manager_->on_update_message_interaction_info(message_full_id, info->views_, info->forwards_, true,
-                                                                 std::move(info->replies_));
-    }
-    td_->message_query_manager_->finish_get_message_views(dialog_id_, message_ids_);
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetMessagesViewsQuery")) {
-      LOG(ERROR) << "Receive error for GetMessagesViewsQuery: " << status;
-    }
-    td_->message_query_manager_->finish_get_message_views(dialog_id_, message_ids_);
-  }
-};
-
-class GetMessagesReactionsQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  vector<MessageId> message_ids_;
-
- public:
-  void send(DialogId dialog_id, vector<MessageId> &&message_ids) {
-    dialog_id_ = dialog_id;
-    message_ids_ = std::move(message_ids);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getMessagesReactions(
-                                            std::move(input_peer), MessageId::get_server_message_ids(message_ids_)),
-                                        {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getMessagesReactions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetMessagesReactionsQuery: " << to_string(ptr);
-    if (ptr->get_id() == telegram_api::updates::ID) {
-      auto &updates = static_cast<telegram_api::updates *>(ptr.get())->updates_;
-      FlatHashSet<MessageId, MessageIdHash> skipped_message_ids;
-      for (auto message_id : message_ids_) {
-        skipped_message_ids.insert(message_id);
-      }
-      for (const auto &update : updates) {
-        if (update->get_id() == telegram_api::updateMessageReactions::ID) {
-          auto update_message_reactions = static_cast<const telegram_api::updateMessageReactions *>(update.get());
-          if (DialogId(update_message_reactions->peer_) == dialog_id_) {
-            skipped_message_ids.erase(MessageId(ServerMessageId(update_message_reactions->msg_id_)));
-          }
-        }
-      }
-      for (auto message_id : skipped_message_ids) {
-        td_->messages_manager_->update_message_reactions({dialog_id_, message_id}, nullptr);
-      }
-    }
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-    td_->message_query_manager_->try_reload_message_reactions(dialog_id_, true);
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetMessagesReactionsQuery");
-    td_->message_query_manager_->try_reload_message_reactions(dialog_id_, true);
-  }
-};
-
-class GetDiscussionMessageQuery final : public Td::ResultHandler {
-  Promise<MessageThreadInfo> promise_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-  DialogId expected_dialog_id_;
-  MessageId expected_message_id_;
-
- public:
-  explicit GetDiscussionMessageQuery(Promise<MessageThreadInfo> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id, DialogId expected_dialog_id, MessageId expected_message_id) {
-    dialog_id_ = dialog_id;
-    message_id_ = message_id;
-    expected_dialog_id_ = expected_dialog_id;
-    expected_message_id_ = expected_message_id;
-    CHECK(expected_dialog_id_.is_valid());
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getDiscussionMessage(std::move(input_peer), message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getDiscussionMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->message_query_manager_->process_discussion_message(result_ptr.move_as_ok(), dialog_id_, message_id_,
-                                                            expected_dialog_id_, expected_message_id_,
-                                                            std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->messages_manager_->on_get_message_error(dialog_id_, message_id_, status, "GetDiscussionMessageQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BlockFromRepliesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit BlockFromRepliesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(MessageId message_id, bool need_delete_message, bool need_delete_all_messages, bool report_spam) {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_blockFromReplies(
-        0, need_delete_message, need_delete_all_messages, report_spam, message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_blockFromReplies>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for BlockFromRepliesQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeletePhoneCallHistoryQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-
- public:
-  explicit DeletePhoneCallHistoryQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool revoke) {
-    int32 flags = 0;
-    if (revoke) {
-      flags |= telegram_api::messages_deletePhoneCallHistory::REVOKE_MASK;
-    }
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_deletePhoneCallHistory(flags, false /*ignored*/)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deletePhoneCallHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto affected_messages = result_ptr.move_as_ok();
-    if (!affected_messages->messages_.empty()) {
-      td_->messages_manager_->process_pts_update(
-          make_tl_object<telegram_api::updateDeleteMessages>(std::move(affected_messages->messages_), 0, 0));
-    }
-    promise_.set_value(AffectedHistory(std::move(affected_messages)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteParticipantHistoryQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-  ChannelId channel_id_;
-  DialogId sender_dialog_id_;
-
- public:
-  explicit DeleteParticipantHistoryQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, DialogId sender_dialog_id) {
-    channel_id_ = channel_id;
-    sender_dialog_id_ = sender_dialog_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return promise_.set_error(Status::Error(400, "Chat is not accessible"));
-    }
-    auto input_peer = td_->dialog_manager_->get_input_peer(sender_dialog_id, AccessRights::Know);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Message sender is not accessible"));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_deleteParticipantHistory(std::move(input_channel), std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_deleteParticipantHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    if (sender_dialog_id_.get_type() != DialogType::Channel) {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "DeleteParticipantHistoryQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteHistoryQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit DeleteHistoryQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId max_message_id, bool remove_from_dialog_list, bool revoke) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Chat is not accessible"));
-    }
-
-    int32 flags = 0;
-    if (!remove_from_dialog_list) {
-      flags |= telegram_api::messages_deleteHistory::JUST_CLEAR_MASK;
-    }
-    if (revoke) {
-      flags |= telegram_api::messages_deleteHistory::REVOKE_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_deleteHistory(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-                                             max_message_id.get_server_message_id().get(), 0, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "DeleteHistoryQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteChannelHistoryQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  MessageId max_message_id_;
-  bool allow_error_;
-
- public:
-  explicit DeleteChannelHistoryQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, MessageId max_message_id, bool allow_error, bool revoke) {
-    channel_id_ = channel_id;
-    max_message_id_ = max_message_id;
-    allow_error_ = allow_error;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::channels_deleteHistory(
-        0, revoke, std::move(input_channel), max_message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_deleteHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteChannelHistoryQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->chat_manager_->on_get_channel_error(channel_id_, status, "DeleteChannelHistoryQuery")) {
-      LOG(ERROR) << "Receive error for DeleteChannelHistoryQuery: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteMessagesByDateQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit DeleteMessagesByDateQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int32 min_date, int32 max_date, bool revoke) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Chat is not accessible"));
-    }
-
-    int32 flags = telegram_api::messages_deleteHistory::JUST_CLEAR_MASK |
-                  telegram_api::messages_deleteHistory::MIN_DATE_MASK |
-                  telegram_api::messages_deleteHistory::MAX_DATE_MASK;
-    if (revoke) {
-      flags |= telegram_api::messages_deleteHistory::REVOKE_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_deleteHistory(
-        flags, false /*ignored*/, false /*ignored*/, std::move(input_peer), 0, min_date, max_date)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "DeleteMessagesByDateQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  vector<int32> server_message_ids_;
-
- public:
-  explicit DeleteMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, vector<int32> &&server_message_ids, bool revoke) {
-    dialog_id_ = dialog_id;
-    server_message_ids_ = server_message_ids;
-
-    int32 flags = 0;
-    if (revoke) {
-      flags |= telegram_api::messages_deleteMessages::REVOKE_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_deleteMessages(flags, false /*ignored*/, std::move(server_message_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto affected_messages = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteMessagesQuery: " << to_string(affected_messages);
-    td_->updates_manager_->add_pending_pts_update(make_tl_object<dummyUpdate>(), affected_messages->pts_,
-                                                  affected_messages->pts_count_, Time::now(), std::move(promise_),
-                                                  "delete messages query");
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      // MESSAGE_DELETE_FORBIDDEN can be returned in group chats when administrator rights were removed
-      // MESSAGE_DELETE_FORBIDDEN can be returned in private chats for bots when revoke time limit exceeded
-      if (status.message() != "MESSAGE_DELETE_FORBIDDEN" ||
-          (dialog_id_.get_type() == DialogType::User && !td_->auth_manager_->is_bot())) {
-        LOG(ERROR) << "Receive error for delete messages: " << status;
-      }
-    }
-    td_->messages_manager_->on_failed_message_deletion(dialog_id_, server_message_ids_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteChannelMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  vector<int32> server_message_ids_;
-
- public:
-  explicit DeleteChannelMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, vector<int32> &&server_message_ids) {
-    channel_id_ = channel_id;
-    server_message_ids_ = server_message_ids;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_deleteMessages(std::move(input_channel), std::move(server_message_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_deleteMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto affected_messages = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteChannelMessagesQuery: " << to_string(affected_messages);
-    td_->messages_manager_->add_pending_channel_update(DialogId(channel_id_), make_tl_object<dummyUpdate>(),
-                                                       affected_messages->pts_, affected_messages->pts_count_,
-                                                       std::move(promise_), "DeleteChannelMessagesQuery");
-  }
-
-  void on_error(Status status) final {
-    if (!td_->chat_manager_->on_get_channel_error(channel_id_, status, "DeleteChannelMessagesQuery")) {
-      if (status.message() != "MESSAGE_DELETE_FORBIDDEN") {
-        LOG(ERROR) << "Receive error for delete channel messages: " << status;
-      }
-    }
-    td_->messages_manager_->on_failed_message_deletion(DialogId(channel_id_), server_message_ids_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteScheduledMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  vector<MessageId> message_ids_;
-
- public:
-  explicit DeleteScheduledMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, vector<MessageId> &&message_ids) {
-    dialog_id_ = dialog_id;
-    message_ids_ = std::move(message_ids);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_deleteScheduledMessages(
-        std::move(input_peer), MessageId::get_scheduled_server_message_ids(message_ids_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteScheduledMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteScheduledMessagesQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "DeleteScheduledMessagesQuery")) {
-      LOG(ERROR) << "Receive error for delete scheduled messages: " << status;
-    }
-    td_->messages_manager_->on_failed_scheduled_message_deletion(dialog_id_, message_ids_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteTopicHistoryQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-  ChannelId channel_id_;
-  MessageId top_thread_message_id_;
-
- public:
-  explicit DeleteTopicHistoryQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId top_thread_message_id) {
-    CHECK(dialog_id.get_type() == DialogType::Channel);
-    channel_id_ = dialog_id.get_channel_id();
-    top_thread_message_id_ = top_thread_message_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id_);
-    if (input_channel == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::channels_deleteTopicHistory(
-        std::move(input_channel), top_thread_message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_deleteTopicHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->messages_manager_->on_get_message_error(DialogId(channel_id_), top_thread_message_id_, status,
-                                                 "DeleteTopicHistoryQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadMentionsQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReadMentionsQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId top_thread_message_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Chat is not accessible"));
-    }
-
-    int32 flags = 0;
-    if (top_thread_message_id.is_valid()) {
-      flags |= telegram_api::messages_readMentions::TOP_MSG_ID_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_readMentions(flags, std::move(input_peer),
-                                            top_thread_message_id.get_server_message_id().get()),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_readMentions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReadMentionsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadReactionsQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReadReactionsQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId top_thread_message_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Chat is not accessible"));
-    }
-
-    int32 flags = 0;
-    if (top_thread_message_id.is_valid()) {
-      flags |= telegram_api::messages_readReactions::TOP_MSG_ID_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_readReactions(flags, std::move(input_peer),
-                                             top_thread_message_id.get_server_message_id().get()),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_readReactions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReadReactionsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadMessagesContentsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ReadMessagesContentsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<MessageId> &&message_ids) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_readMessageContents(MessageId::get_server_message_ids(message_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_readMessageContents>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto affected_messages = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ReadMessagesContentsQuery: " << to_string(affected_messages);
-
-    if (affected_messages->pts_count_ > 0) {
-      td_->updates_manager_->add_pending_pts_update(make_tl_object<dummyUpdate>(), affected_messages->pts_,
-                                                    affected_messages->pts_count_, Time::now(), Promise<Unit>(),
-                                                    "read messages content query");
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for read message contents: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadChannelMessagesContentsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ReadChannelMessagesContentsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, vector<MessageId> &&message_ids) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      LOG(ERROR) << "Have no input channel for " << channel_id;
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::channels_readMessageContents(
-                                            std::move(input_channel), MessageId::get_server_message_ids(message_ids)),
-                                        {{channel_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_readMessageContents>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG_IF(ERROR, !result) << "Read channel messages contents failed";
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->chat_manager_->on_get_channel_error(channel_id_, status, "ReadChannelMessagesContentsQuery")) {
-      LOG(ERROR) << "Receive error for read messages contents in " << channel_id_ << ": " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UnpinAllMessagesQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-  DialogId dialog_id_;
-  MessageId top_thread_message_id_;
-
- public:
-  explicit UnpinAllMessagesQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId top_thread_message_id) {
-    dialog_id_ = dialog_id;
-    top_thread_message_id_ = top_thread_message_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Can't unpin all messages in " << dialog_id_;
-      return on_error(Status::Error(400, "Can't unpin all messages"));
-    }
-
-    int32 flags = 0;
-    if (top_thread_message_id.is_valid()) {
-      flags |= telegram_api::messages_unpinAllMessages::TOP_MSG_ID_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_unpinAllMessages(
-        flags, std::move(input_peer), top_thread_message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_unpinAllMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->messages_manager_->on_get_message_error(dialog_id_, top_thread_message_id_, status, "UnpinAllMessagesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class MessageQueryManager::UploadCoverCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->message_query_manager(), &MessageQueryManager::on_upload_cover, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->message_query_manager(), &MessageQueryManager::on_upload_cover_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-MessageQueryManager::MessageQueryManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_cover_callback_ = std::make_shared<UploadCoverCallback>();
-}
-
-void MessageQueryManager::tear_down() {
-  parent_.reset();
-}
-
-void MessageQueryManager::run_affected_history_query_until_complete(DialogId dialog_id, AffectedHistoryQuery query,
-                                                                    bool get_affected_messages,
-                                                                    Promise<Unit> &&promise) {
-  CHECK(!G()->close_flag());
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, query, get_affected_messages,
-                                               promise = std::move(promise)](Result<AffectedHistory> &&result) mutable {
-    if (result.is_error()) {
-      return promise.set_error(result.move_as_error());
-    }
-
-    send_closure(actor_id, &MessageQueryManager::on_get_affected_history, dialog_id, query, get_affected_messages,
-                 result.move_as_ok(), std::move(promise));
-  });
-  query(dialog_id, std::move(query_promise));
-}
-
-void MessageQueryManager::on_get_affected_history(DialogId dialog_id, AffectedHistoryQuery query,
-                                                  bool get_affected_messages, AffectedHistory affected_history,
-                                                  Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  LOG(INFO) << "Receive " << (affected_history.is_final_ ? "final " : "partial ")
-            << "affected history with PTS = " << affected_history.pts_
-            << " and pts_count = " << affected_history.pts_count_;
-
-  if (affected_history.pts_count_ > 0) {
-    if (get_affected_messages) {
-      affected_history.pts_count_ = 0;
-    }
-    auto update_promise = affected_history.is_final_ ? std::move(promise) : Promise<Unit>();
-    if (dialog_id.get_type() == DialogType::Channel) {
-      td_->messages_manager_->add_pending_channel_update(dialog_id, telegram_api::make_object<dummyUpdate>(),
-                                                         affected_history.pts_, affected_history.pts_count_,
-                                                         std::move(update_promise), "on_get_affected_history");
-    } else {
-      td_->updates_manager_->add_pending_pts_update(
-          telegram_api::make_object<dummyUpdate>(), affected_history.pts_, affected_history.pts_count_,
-          Time::now() - (get_affected_messages ? 10.0 : 0.0), std::move(update_promise), "on_get_affected_history");
-    }
-  } else if (affected_history.is_final_) {
-    promise.set_value(Unit());
-  }
-
-  if (!affected_history.is_final_) {
-    run_affected_history_query_until_complete(dialog_id, std::move(query), get_affected_messages, std::move(promise));
-  }
-}
-
-void MessageQueryManager::upload_message_covers(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                                vector<const Photo *> covers, Promise<Unit> &&promise) {
-  CHECK(!covers.empty());
-  MultiPromiseActorSafe mpas{"UploadMessageCoversMultiPromiseActor"};
-  mpas.add_promise(std::move(promise));
-  auto lock = mpas.get_promise();
-  for (const Photo *cover : covers) {
-    CHECK(cover != nullptr);
-    auto file_upload_id = FileUploadId(get_photo_any_file_id(*cover), FileManager::get_internal_upload_id());
-    upload_message_cover(business_connection_id, dialog_id, *cover, file_upload_id, mpas.get_promise());
-  }
-  lock.set_value(Unit());
-}
-
-void MessageQueryManager::upload_message_cover(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                               Photo photo, FileUploadId file_upload_id, Promise<Unit> &&promise,
-                                               vector<int> bad_parts) {
-  BeingUploadedCover cover;
-  cover.business_connection_id_ = business_connection_id;
-  cover.dialog_id_ = dialog_id;
-  cover.photo_ = std::move(photo);
-  cover.promise_ = std::move(promise);
-
-  auto input_media = photo_get_cover_input_media(td_->file_manager_.get(), cover.photo_,
-                                                 td_->auth_manager_->is_bot() && bad_parts.empty(), true);
-  if (input_media != nullptr && bad_parts.empty()) {
-    return do_upload_cover(file_upload_id, std::move(cover));
-  }
-
-  LOG(INFO) << "Ask to upload cover " << file_upload_id << " with bad parts " << bad_parts;
-  CHECK(file_upload_id.is_valid());
-  bool is_inserted = being_uploaded_covers_.emplace(file_upload_id, std::move(cover)).second;
-  CHECK(is_inserted);
-  // need to call resume_upload synchronously to make upload process consistent with being_uploaded_covers_
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_cover_callback_, 1, 0);
-}
-
-void MessageQueryManager::on_upload_cover(FileUploadId file_upload_id,
-                                          telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Cover " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_covers_.find(file_upload_id);
-  CHECK(it != being_uploaded_covers_.end());
-  auto cover = std::move(it->second);
-  being_uploaded_covers_.erase(it);
-
-  cover.input_file_ = std::move(input_file);
-  do_upload_cover(file_upload_id, std::move(cover));
-}
-
-void MessageQueryManager::on_upload_cover_error(FileUploadId file_upload_id, Status status) {
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_covers_.find(file_upload_id);
-  CHECK(it != being_uploaded_covers_.end());
-  auto cover = std::move(it->second);
-  being_uploaded_covers_.erase(it);
-
-  cover.promise_.set_error(std::move(status));
-}
-
-void MessageQueryManager::do_upload_cover(FileUploadId file_upload_id, BeingUploadedCover &&being_uploaded_cover) {
-  auto input_file = std::move(being_uploaded_cover.input_file_);
-  bool have_input_file = input_file != nullptr;
-  LOG(INFO) << "Do upload cover " << file_upload_id << ", have_input_file = " << have_input_file;
-
-  auto input_media =
-      photo_get_input_media(td_->file_manager_.get(), being_uploaded_cover.photo_, std::move(input_file), 0, false);
-  CHECK(input_media != nullptr);
-  if (is_uploaded_input_media(input_media)) {
-    return being_uploaded_cover.promise_.set_value(Unit());
-  } else {
-    td_->create_handler<UploadCoverQuery>(std::move(being_uploaded_cover.promise_))
-        ->send(being_uploaded_cover.business_connection_id_, being_uploaded_cover.dialog_id_,
-               std::move(being_uploaded_cover.photo_), file_upload_id, std::move(input_media));
-  }
-}
-
-void MessageQueryManager::complete_upload_message_cover(
-    BusinessConnectionId business_connection_id, DialogId dialog_id, Photo photo, FileUploadId file_upload_id,
-    telegram_api::object_ptr<telegram_api::MessageMedia> &&media_ptr, Promise<Unit> &&promise) {
-  send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-
-  if (media_ptr->get_id() != telegram_api::messageMediaPhoto::ID) {
-    return promise.set_error(Status::Error(500, "Receive invalid response"));
-  }
-  auto media = telegram_api::move_object_as<telegram_api::messageMediaPhoto>(media_ptr);
-  if (media->photo_ == nullptr || (media->flags_ & telegram_api::messageMediaPhoto::TTL_SECONDS_MASK) != 0) {
-    return promise.set_error(Status::Error(500, "Receive invalid response without photo"));
-  }
-  auto new_photo = get_photo(td_, std::move(media->photo_), dialog_id, FileType::Photo);
-  if (new_photo.is_empty()) {
-    return promise.set_error(Status::Error(500, "Receive invalid photo in response"));
-  }
-  bool is_content_changed = false;
-  bool need_update = false;
-  merge_photos(td_, &photo, &new_photo, dialog_id, true, is_content_changed, need_update);
-
-  auto input_media = photo_get_cover_input_media(td_->file_manager_.get(), photo, true, true);
-  if (input_media == nullptr) {
-    return promise.set_error(Status::Error(500, "Failed to upload file"));
-  }
-  promise.set_value(Unit());
-}
-
-void MessageQueryManager::report_message_delivery(MessageFullId message_full_id, int32 until_date, bool from_push) {
-  if (G()->unix_time() > until_date) {
-    return;
-  }
-  td_->create_handler<ReportMessageDeliveryQuery>()->send(message_full_id, from_push);
-}
-
-void MessageQueryManager::reload_message_extended_media(DialogId dialog_id, vector<MessageId> message_ids) {
-  CHECK(dialog_id.get_type() != DialogType::SecretChat);
-  td::remove_if(message_ids, [&](MessageId message_id) {
-    return !being_reloaded_fact_checks_.insert({dialog_id, message_id}).second;
-  });
-  if (message_ids.empty()) {
-    return;
-  }
-  td_->create_handler<GetExtendedMediaQuery>()->send(dialog_id, std::move(message_ids));
-}
-
-void MessageQueryManager::finish_get_message_extended_media(DialogId dialog_id, const vector<MessageId> &message_ids) {
-  for (auto message_id : message_ids) {
-    being_reloaded_extended_media_message_full_ids_.erase({dialog_id, message_id});
-  }
-}
-
-void MessageQueryManager::reload_message_fact_checks(DialogId dialog_id, vector<MessageId> message_ids) {
-  CHECK(dialog_id.get_type() != DialogType::SecretChat);
-  td::remove_if(message_ids, [&](MessageId message_id) {
-    return !being_reloaded_fact_checks_.insert({dialog_id, message_id}).second;
-  });
-  if (message_ids.empty()) {
-    return;
-  }
-
-  auto promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, message_ids](
-                                 Result<vector<telegram_api::object_ptr<telegram_api::factCheck>>> r_fact_checks) {
-        send_closure(actor_id, &MessageQueryManager::on_reload_message_fact_checks, dialog_id, message_ids,
-                     std::move(r_fact_checks));
-      });
-  td_->create_handler<GetFactCheckQuery>(std::move(promise))->send(dialog_id, message_ids);
-}
-
-void MessageQueryManager::on_reload_message_fact_checks(
-    DialogId dialog_id, const vector<MessageId> &message_ids,
-    Result<vector<telegram_api::object_ptr<telegram_api::factCheck>>> r_fact_checks) {
-  G()->ignore_result_if_closing(r_fact_checks);
-  for (auto message_id : message_ids) {
-    auto erased_count = being_reloaded_fact_checks_.erase({dialog_id, message_id});
-    CHECK(erased_count > 0);
-  }
-  if (r_fact_checks.is_error() || !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return;
-  }
-  auto fact_checks = r_fact_checks.move_as_ok();
-  if (fact_checks.size() != message_ids.size()) {
-    LOG(ERROR) << "Receive " << fact_checks.size() << " fact checks instead of " << message_ids.size();
-    return;
-  }
-  for (size_t i = 0; i < message_ids.size(); i++) {
-    td_->messages_manager_->on_update_message_fact_check(
-        {dialog_id, message_ids[i]},
-        FactCheck::get_fact_check(td_->user_manager_.get(), std::move(fact_checks[i]), false));
-  }
-}
-
-void MessageQueryManager::set_message_fact_check(MessageFullId message_full_id, const FormattedText &fact_check_text,
-                                                 Promise<Unit> &&promise) {
-  td_->create_handler<EditMessageFactCheckQuery>(std::move(promise))
-      ->send(message_full_id.get_dialog_id(), message_full_id.get_message_id(), fact_check_text);
-}
-
-void MessageQueryManager::search_messages(DialogListId dialog_list_id, bool ignore_folder_id, const string &query,
-                                          const string &offset_str, int32 limit, MessageSearchFilter filter,
-                                          td_api::object_ptr<td_api::SearchMessagesChatTypeFilter> &&dialog_type_filter,
-                                          int32 min_date, int32 max_date,
-                                          Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  if (!dialog_list_id.is_folder()) {
-    return promise.set_error(Status::Error(400, "Wrong chat list specified"));
-  }
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_MESSAGES) {
-    limit = MAX_SEARCH_MESSAGES;
-  }
-
-  TRY_RESULT_PROMISE(promise, offset, MessageSearchOffset::from_string(offset_str));
-
-  CHECK(filter != MessageSearchFilter::Call && filter != MessageSearchFilter::MissedCall);
-  if (filter == MessageSearchFilter::Mention || filter == MessageSearchFilter::UnreadMention ||
-      filter == MessageSearchFilter::UnreadReaction || filter == MessageSearchFilter::FailedToSend ||
-      filter == MessageSearchFilter::Pinned) {
-    return promise.set_error(Status::Error(400, "The filter is not supported"));
-  }
-
-  if (query.empty() && filter == MessageSearchFilter::Empty) {
-    return promise.set_value(td_->messages_manager_->get_found_messages_object({}, "search_messages"));
-  }
-
-  td_->create_handler<SearchMessagesGlobalQuery>(std::move(promise))
-      ->send(dialog_list_id.get_folder_id(), ignore_folder_id, query, offset.date_, offset.dialog_id_,
-             offset.message_id_, limit, filter, dialog_type_filter, min_date, max_date);
-}
-
-void MessageQueryManager::on_get_messages_search_result(
-    const string &query, int32 offset_date, DialogId offset_dialog_id, MessageId offset_message_id, int32 limit,
-    MessageSearchFilter filter, int32 min_date, int32 max_date, int32 total_count,
-    vector<telegram_api::object_ptr<telegram_api::Message>> &&messages, int32 next_rate,
-    Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Receive " << messages.size() << " found messages";
-
-  MessagesManager::FoundMessages found_messages;
-  auto &result = found_messages.message_full_ids;
-  MessageSearchOffset next_offset;
-  for (auto &message : messages) {
-    next_offset.update_from_message(message);
-
-    bool is_channel_message = DialogId::get_message_dialog_id(message).get_type() == DialogType::Channel;
-    auto new_message_full_id =
-        td_->messages_manager_->on_get_message(std::move(message), false, is_channel_message, false, "search messages");
-    if (new_message_full_id != MessageFullId()) {
-      result.push_back(new_message_full_id);
-    } else {
-      total_count--;
-    }
-  }
-  if (total_count < static_cast<int32>(result.size())) {
-    LOG(ERROR) << "Receive " << result.size() << " valid messages out of " << total_count << " in " << messages.size()
-               << " messages";
-    total_count = static_cast<int32>(result.size());
-  }
-  found_messages.total_count = total_count;
-  if (!result.empty()) {
-    if (next_rate > 0) {
-      next_offset.date_ = next_rate;
-    }
-    found_messages.next_offset = next_offset.to_string();
-  }
-  promise.set_value(td_->messages_manager_->get_found_messages_object(found_messages, "on_get_messages_search_result"));
-}
-
-void MessageQueryManager::search_outgoing_document_messages(
-    const string &query, int32 limit, Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_MESSAGES) {
-    limit = MAX_SEARCH_MESSAGES;
-  }
-
-  td_->create_handler<SearchSentMediaQuery>(std::move(promise))->send(query, limit);
-}
-
-void MessageQueryManager::on_get_outgoing_document_messages(
-    vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-    Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  MessagesManager::FoundMessages found_messages;
-  for (auto &message : messages) {
-    auto dialog_id = DialogId::get_message_dialog_id(message);
-    auto message_full_id =
-        td_->messages_manager_->on_get_message(std::move(message), false, dialog_id.get_type() == DialogType::Channel,
-                                               false, "on_get_outgoing_document_messages");
-    if (message_full_id != MessageFullId()) {
-      CHECK(dialog_id == message_full_id.get_dialog_id());
-      found_messages.message_full_ids.push_back(message_full_id);
-    }
-  }
-  auto result = td_->messages_manager_->get_found_messages_object(found_messages, "on_get_outgoing_document_messages");
-  td::remove_if(result->messages_,
-                [](const auto &message) { return message->content_->get_id() != td_api::messageDocument::ID; });
-  result->total_count_ = narrow_cast<int32>(result->messages_.size());
-  promise.set_value(std::move(result));
-}
-
-void MessageQueryManager::search_hashtag_posts(string hashtag, string offset_str, int32 limit,
-                                               Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_MESSAGES) {
-    limit = MAX_SEARCH_MESSAGES;
-  }
-
-  TRY_RESULT_PROMISE(promise, offset, MessageSearchOffset::from_string(offset_str));
-
-  bool is_cashtag = false;
-  if (hashtag[0] == '#' || hashtag[0] == '$') {
-    is_cashtag = (hashtag[0] == '$');
-    hashtag = hashtag.substr(1);
-  }
-  if (hashtag.empty()) {
-    return promise.set_value(td_->messages_manager_->get_found_messages_object({}, "search_hashtag_posts"));
-  }
-  send_closure(is_cashtag ? td_->cashtag_search_hints_ : td_->hashtag_search_hints_, &HashtagHints::hashtag_used,
-               hashtag);
-
-  td_->create_handler<SearchPostsQuery>(std::move(promise))
-      ->send(PSTRING() << (is_cashtag ? '$' : '#') << hashtag, offset, limit);
-}
-
-void MessageQueryManager::on_get_hashtag_search_result(
-    const string &hashtag, const MessageSearchOffset &old_offset, int32 limit, int32 total_count,
-    vector<telegram_api::object_ptr<telegram_api::Message>> &&messages, int32 next_rate,
-    Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  MessagesManager::FoundMessages found_messages;
-  auto &result = found_messages.message_full_ids;
-  MessageSearchOffset next_offset;
-  for (auto &message : messages) {
-    next_offset.update_from_message(message);
-
-    auto new_message_full_id =
-        td_->messages_manager_->on_get_message(std::move(message), false, true, false, "search hashtag");
-    if (new_message_full_id != MessageFullId()) {
-      result.push_back(new_message_full_id);
-    } else {
-      total_count--;
-    }
-  }
-  if (total_count < static_cast<int32>(result.size())) {
-    LOG(ERROR) << "Receive " << result.size() << " valid messages out of " << total_count << " in " << messages.size()
-               << " messages";
-    total_count = static_cast<int32>(result.size());
-  }
-  found_messages.total_count = total_count;
-  if (!result.empty()) {
-    if (next_rate > 0) {
-      next_offset.date_ = next_rate;
-    }
-    found_messages.next_offset = next_offset.to_string();
-  }
-  promise.set_value(td_->messages_manager_->get_found_messages_object(found_messages, "on_get_hashtag_search_result"));
-}
-
-void MessageQueryManager::search_dialog_recent_location_messages(
-    DialogId dialog_id, int32 limit, Promise<td_api::object_ptr<td_api::messages>> &&promise) {
-  LOG(INFO) << "Search recent location messages in " << dialog_id << " with limit " << limit;
-
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_MESSAGES) {
-    limit = MAX_SEARCH_MESSAGES;
-  }
-
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, true, AccessRights::Read,
-                                                                        "search_dialog_recent_location_messages"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      return td_->create_handler<GetRecentLocationsQuery>(std::move(promise))->send(dialog_id, limit);
-    case DialogType::SecretChat:
-      return promise.set_value(td_->messages_manager_->get_messages_object(0, dialog_id, {}, false,
-                                                                           "search_dialog_recent_location_messages"));
-    default:
-      UNREACHABLE();
-      promise.set_error(Status::Error(500, "Message search is not supported"));
-  }
-}
-
-void MessageQueryManager::on_get_recent_locations(DialogId dialog_id, int32 limit, int32 total_count,
-                                                  vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-                                                  Promise<td_api::object_ptr<td_api::messages>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Receive " << messages.size() << " recent locations in " << dialog_id;
-  vector<MessageId> message_ids;
-  for (auto &message : messages) {
-    auto new_message_full_id = td_->messages_manager_->on_get_message(
-        std::move(message), false, dialog_id.get_type() == DialogType::Channel, false, "on_get_recent_locations");
-    if (new_message_full_id != MessageFullId()) {
-      if (new_message_full_id.get_dialog_id() != dialog_id) {
-        LOG(ERROR) << "Receive " << new_message_full_id << " instead of a message in " << dialog_id;
-        total_count--;
-        continue;
-      }
-
-      message_ids.push_back(new_message_full_id.get_message_id());
-    } else {
-      total_count--;
-    }
-  }
-  if (total_count < static_cast<int32>(message_ids.size())) {
-    LOG(ERROR) << "Receive " << message_ids.size() << " valid messages out of " << total_count << " in "
-               << messages.size() << " messages";
-    total_count = static_cast<int32>(message_ids.size());
-  }
-  auto result =
-      td_->messages_manager_->get_messages_object(total_count, dialog_id, message_ids, true, "on_get_recent_locations");
-  td::remove_if(result->messages_, [&](const auto &message) {
-    if (message->content_->get_id() != td_api::messageLocation::ID ||
-        static_cast<const td_api::messageLocation *>(message->content_.get())->live_period_ <= 0) {
-      result->total_count_--;
-      return true;
-    }
-    return false;
-  });
-
-  promise.set_value(std::move(result));
-}
-
-void MessageQueryManager::get_dialog_message_position_from_server(DialogId dialog_id, MessageId message_id,
-                                                                  MessageSearchFilter filter,
-                                                                  MessageId top_thread_message_id,
-                                                                  SavedMessagesTopicId saved_messages_topic_id,
-                                                                  Promise<int32> &&promise) {
-  if (filter == MessageSearchFilter::UnreadMention || filter == MessageSearchFilter::UnreadReaction ||
-      filter == MessageSearchFilter::FailedToSend) {
-    return promise.set_error(Status::Error(400, "The filter is not supported"));
-  }
-
-  td_->create_handler<GetMessagePositionQuery>(std::move(promise))
-      ->send(dialog_id, message_id, filter, top_thread_message_id, saved_messages_topic_id);
-}
-
-void MessageQueryManager::get_message_read_date_from_server(
-    MessageFullId message_full_id, Promise<td_api::object_ptr<td_api::MessageReadDate>> &&promise) {
-  td_->create_handler<GetOutboxReadDateQuery>(std::move(promise))
-      ->send(message_full_id.get_dialog_id(), message_full_id.get_message_id());
-}
-
-void MessageQueryManager::get_message_viewers(MessageFullId message_full_id,
-                                              Promise<td_api::object_ptr<td_api::messageViewers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->messages_manager_->can_get_message_viewers(message_full_id));
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id = message_full_id.get_dialog_id(),
-                                               promise = std::move(promise)](Result<MessageViewers> result) mutable {
-    if (result.is_error()) {
-      return promise.set_error(result.move_as_error());
-    }
-    send_closure(actor_id, &MessageQueryManager::on_get_message_viewers, dialog_id, result.move_as_ok(), false,
-                 std::move(promise));
-  });
-
-  td_->create_handler<GetMessageReadParticipantsQuery>(std::move(query_promise))
-      ->send(message_full_id.get_dialog_id(), message_full_id.get_message_id());
-}
-
-void MessageQueryManager::on_get_message_viewers(DialogId dialog_id, MessageViewers message_viewers, bool is_recursive,
-                                                 Promise<td_api::object_ptr<td_api::messageViewers>> &&promise) {
-  if (!is_recursive) {
-    bool need_participant_list = false;
-    for (auto user_id : message_viewers.get_user_ids()) {
-      if (!td_->user_manager_->have_user_force(user_id, "on_get_message_viewers")) {
-        need_participant_list = true;
-      }
-    }
-    if (need_participant_list) {
-      auto query_promise =
-          PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, message_viewers = std::move(message_viewers),
-                                  promise = std::move(promise)](Unit result) mutable {
-            send_closure(actor_id, &MessageQueryManager::on_get_message_viewers, dialog_id, std::move(message_viewers),
-                         true, std::move(promise));
-          });
-
-      switch (dialog_id.get_type()) {
-        case DialogType::Chat:
-          return td_->chat_manager_->reload_chat_full(dialog_id.get_chat_id(), std::move(query_promise),
-                                                      "on_get_message_viewers");
-        case DialogType::Channel:
-          return td_->dialog_participant_manager_->get_channel_participants(
-              dialog_id.get_channel_id(), td_api::make_object<td_api::supergroupMembersFilterRecent>(), string(), 0,
-              200, 200, PromiseCreator::lambda([query_promise = std::move(query_promise)](DialogParticipants) mutable {
-                query_promise.set_value(Unit());
-              }));
-        default:
-          UNREACHABLE();
-          return;
-      }
-    }
-  }
-  promise.set_value(message_viewers.get_message_viewers_object(td_->user_manager_.get()));
-}
-
-void MessageQueryManager::view_messages(DialogId dialog_id, const vector<MessageId> &message_ids,
-                                        bool increment_view_counter) {
-  const size_t MAX_MESSAGE_VIEWS = 100;  // server-side limit
-  vector<MessageId> viewed_message_ids;
-  viewed_message_ids.reserve(min(message_ids.size(), MAX_MESSAGE_VIEWS));
-  for (auto message_id : message_ids) {
-    MessageFullId message_full_id{dialog_id, message_id};
-    if (!being_reloaded_views_message_full_ids_.insert(message_full_id).second) {
-      if (!increment_view_counter || !need_view_counter_increment_message_full_ids_.insert(message_full_id).second) {
-        continue;
-      }
-    } else if (increment_view_counter) {
-      need_view_counter_increment_message_full_ids_.insert(message_full_id);
-    }
-    viewed_message_ids.push_back(message_id);
-    if (viewed_message_ids.size() >= MAX_MESSAGE_VIEWS) {
-      td_->create_handler<GetMessagesViewsQuery>()->send(dialog_id, std::move(viewed_message_ids),
-                                                         increment_view_counter);
-      viewed_message_ids.clear();
-    }
-  }
-  if (!viewed_message_ids.empty()) {
-    td_->create_handler<GetMessagesViewsQuery>()->send(dialog_id, std::move(viewed_message_ids),
-                                                       increment_view_counter);
-  }
-}
-
-void MessageQueryManager::finish_get_message_views(DialogId dialog_id, const vector<MessageId> &message_ids) {
-  for (auto message_id : message_ids) {
-    MessageFullId message_full_id{dialog_id, message_id};
-    being_reloaded_views_message_full_ids_.erase(message_full_id);
-    need_view_counter_increment_message_full_ids_.erase(message_full_id);
-  }
-}
-
-void MessageQueryManager::queue_message_reactions_reload(MessageFullId message_full_id) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  CHECK(dialog_id.is_valid());
-  auto message_id = message_full_id.get_message_id();
-  CHECK(message_id.is_valid());
-  being_reloaded_reactions_[dialog_id].message_ids.insert(message_id);
-  try_reload_message_reactions(dialog_id, false);
-}
-
-void MessageQueryManager::queue_message_reactions_reload(DialogId dialog_id, const vector<MessageId> &message_ids) {
-  LOG(INFO) << "Queue reload of reactions in " << message_ids << " in " << dialog_id;
-  auto &message_ids_to_reload = being_reloaded_reactions_[dialog_id].message_ids;
-  for (auto &message_id : message_ids) {
-    CHECK(message_id.is_valid());
-    message_ids_to_reload.insert(message_id);
-  }
-  try_reload_message_reactions(dialog_id, false);
-}
-
-void MessageQueryManager::try_reload_message_reactions(DialogId dialog_id, bool is_finished) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto it = being_reloaded_reactions_.find(dialog_id);
-  if (it == being_reloaded_reactions_.end()) {
-    return;
-  }
-  if (is_finished) {
-    CHECK(it->second.is_request_sent);
-    it->second.is_request_sent = false;
-
-    if (it->second.message_ids.empty()) {
-      being_reloaded_reactions_.erase(it);
-      return;
-    }
-  } else if (it->second.is_request_sent) {
-    return;
-  }
-
-  CHECK(!it->second.message_ids.empty());
-  CHECK(!it->second.is_request_sent);
-
-  it->second.is_request_sent = true;
-
-  static constexpr size_t MAX_MESSAGE_IDS = 100;  // server-side limit
-  vector<MessageId> message_ids;
-  for (auto message_id_it = it->second.message_ids.begin();
-       message_id_it != it->second.message_ids.end() && message_ids.size() < MAX_MESSAGE_IDS; ++message_id_it) {
-    auto message_id = *message_id_it;
-    if (!has_message_pending_read_reactions({dialog_id, message_id})) {
-      message_ids.push_back(message_id);
-    }
-  }
-  for (auto message_id : message_ids) {
-    it->second.message_ids.erase(message_id);
-  }
-
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read) || message_ids.empty()) {
-    create_actor<SleepActor>("RetryReloadMessageReactionsActor", 0.2,
-                             PromiseCreator::lambda([actor_id = actor_id(this), dialog_id](Unit) mutable {
-                               send_closure(actor_id, &MessageQueryManager::try_reload_message_reactions, dialog_id,
-                                            true);
-                             }))
-        .release();
-    return;
-  }
-
-  for (const auto &message_id : message_ids) {
-    CHECK(message_id.is_valid());
-    CHECK(message_id.is_server());
-  }
-
-  td_->create_handler<GetMessagesReactionsQuery>()->send(dialog_id, std::move(message_ids));
-}
-
-void MessageQueryManager::get_paid_message_reaction_senders(
-    DialogId dialog_id, Promise<td_api::object_ptr<td_api::messageSenders>> &&promise, bool is_recursive) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "get_paid_message_reaction_senders"));
-  if (!td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return promise.set_value(td_api::make_object<td_api::messageSenders>());
-  }
-  if (!td_->user_manager_->have_user(td_->user_manager_->get_my_id())) {
-    auto new_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), dialog_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure_later(actor_id, &MessageQueryManager::get_paid_message_reaction_senders, dialog_id,
-                               std::move(promise), false);
-          }
-        });
-    td_->user_manager_->get_me(std::move(new_promise));
-    return;
-  }
-  if (td_->chat_manager_->are_created_public_broadcasts_inited()) {
-    auto senders = td_api::make_object<td_api::messageSenders>();
-    const auto &created_public_broadcasts = td_->chat_manager_->get_created_public_broadcasts();
-    auto add_sender = [&senders, td = td_](DialogId dialog_id) {
-      senders->senders_.push_back(get_message_sender_object(td, dialog_id, "add_sender"));
-      senders->total_count_++;
-    };
-    add_sender(td_->dialog_manager_->get_my_dialog_id());
-
-    std::multimap<int64, ChannelId> sorted_channel_ids;
-    for (auto channel_id : created_public_broadcasts) {
-      int64 score = td_->chat_manager_->get_channel_participant_count(channel_id);
-      sorted_channel_ids.emplace(-score, channel_id);
-    };
-    for (auto &channel_id : sorted_channel_ids) {
-      add_sender(DialogId(channel_id.second));
-    }
-    return promise.set_value(std::move(senders));
-  }
-
-  CHECK(!is_recursive);
-  auto new_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, promise = std::move(promise)](
-                                                Result<td_api::object_ptr<td_api::chats>> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      send_closure_later(actor_id, &MessageQueryManager::get_paid_message_reaction_senders, dialog_id,
-                         std::move(promise), true);
-    }
-  });
-  td_->chat_manager_->get_created_public_dialogs(PublicDialogType::ForPersonalDialog, std::move(new_promise), true);
-}
-
-void MessageQueryManager::get_discussion_message(DialogId dialog_id, MessageId message_id, DialogId expected_dialog_id,
-                                                 MessageId expected_message_id, Promise<MessageThreadInfo> &&promise) {
-  td_->create_handler<GetDiscussionMessageQuery>(std::move(promise))
-      ->send(dialog_id, message_id, expected_dialog_id, expected_message_id);
-}
-
-void MessageQueryManager::process_discussion_message(
-    telegram_api::object_ptr<telegram_api::messages_discussionMessage> &&result, DialogId dialog_id,
-    MessageId message_id, DialogId expected_dialog_id, MessageId expected_message_id,
-    Promise<MessageThreadInfo> promise) {
-  LOG(INFO) << "Receive discussion message for " << message_id << " in " << dialog_id << " with expected "
-            << expected_message_id << " in " << expected_dialog_id << ": " << to_string(result);
-  td_->user_manager_->on_get_users(std::move(result->users_), "process_discussion_message");
-  td_->chat_manager_->on_get_chats(std::move(result->chats_), "process_discussion_message");
-
-  for (auto &message : result->messages_) {
-    auto message_dialog_id = DialogId::get_message_dialog_id(message);
-    if (message_dialog_id != expected_dialog_id) {
-      return promise.set_error(Status::Error(500, "Expected messages in a different chat"));
-    }
-  }
-
-  for (auto &message : result->messages_) {
-    if (td_->messages_manager_->need_channel_difference_to_add_message(expected_dialog_id, message)) {
-      auto max_message_id = MessageId::get_max_message_id(result->messages_);
-      return td_->messages_manager_->run_after_channel_difference(
-          expected_dialog_id, max_message_id,
-          PromiseCreator::lambda([actor_id = actor_id(this), result = std::move(result), dialog_id, message_id,
-                                  expected_dialog_id, expected_message_id,
-                                  promise = std::move(promise)](Unit ignored) mutable {
-            send_closure(actor_id, &MessageQueryManager::process_discussion_message_impl, std::move(result), dialog_id,
-                         message_id, expected_dialog_id, expected_message_id, std::move(promise));
-          }),
-          "process_discussion_message");
-    }
-  }
-
-  process_discussion_message_impl(std::move(result), dialog_id, message_id, expected_dialog_id, expected_message_id,
-                                  std::move(promise));
-}
-
-void MessageQueryManager::process_discussion_message_impl(
-    telegram_api::object_ptr<telegram_api::messages_discussionMessage> &&result, DialogId dialog_id,
-    MessageId message_id, DialogId expected_dialog_id, MessageId expected_message_id,
-    Promise<MessageThreadInfo> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  MessageThreadInfo message_thread_info;
-  message_thread_info.dialog_id = expected_dialog_id;
-  message_thread_info.unread_message_count = max(0, result->unread_count_);
-  MessageId top_message_id;
-  for (auto &message : result->messages_) {
-    auto message_full_id = td_->messages_manager_->on_get_message(std::move(message), false, true, false,
-                                                                  "process_discussion_message_impl");
-    if (message_full_id.get_message_id().is_valid()) {
-      CHECK(message_full_id.get_dialog_id() == expected_dialog_id);
-      message_thread_info.message_ids.push_back(message_full_id.get_message_id());
-      if (message_full_id.get_message_id() == expected_message_id) {
-        top_message_id = expected_message_id;
-      }
-    }
-  }
-  if (!message_thread_info.message_ids.empty() && !top_message_id.is_valid()) {
-    top_message_id = message_thread_info.message_ids.back();
-  }
-  auto max_message_id = MessageId(ServerMessageId(result->max_id_));
-  auto last_read_inbox_message_id = MessageId(ServerMessageId(result->read_inbox_max_id_));
-  auto last_read_outbox_message_id = MessageId(ServerMessageId(result->read_outbox_max_id_));
-  if (top_message_id.is_valid()) {
-    td_->messages_manager_->on_update_read_message_comments(expected_dialog_id, top_message_id, max_message_id,
-                                                            last_read_inbox_message_id, last_read_outbox_message_id,
-                                                            message_thread_info.unread_message_count);
-  }
-  if (expected_dialog_id != dialog_id) {
-    td_->messages_manager_->on_update_read_message_comments(dialog_id, message_id, max_message_id,
-                                                            last_read_inbox_message_id, last_read_outbox_message_id,
-                                                            message_thread_info.unread_message_count);
-  }
-  promise.set_value(std::move(message_thread_info));
-}
-
-class MessageQueryManager::BlockMessageSenderFromRepliesOnServerLogEvent {
- public:
-  MessageId message_id_;
-  bool delete_message_;
-  bool delete_all_messages_;
-  bool report_spam_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(delete_message_);
-    STORE_FLAG(delete_all_messages_);
-    STORE_FLAG(report_spam_);
-    END_STORE_FLAGS();
-
-    td::store(message_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(delete_message_);
-    PARSE_FLAG(delete_all_messages_);
-    PARSE_FLAG(report_spam_);
-    END_PARSE_FLAGS();
-
-    td::parse(message_id_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_block_message_sender_from_replies_on_server_log_event(MessageId message_id,
-                                                                                       bool need_delete_message,
-                                                                                       bool need_delete_all_messages,
-                                                                                       bool report_spam) {
-  BlockMessageSenderFromRepliesOnServerLogEvent log_event{message_id, need_delete_message, need_delete_all_messages,
-                                                          report_spam};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::BlockMessageSenderFromRepliesOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::block_message_sender_from_replies_on_server(MessageId message_id, bool need_delete_message,
-                                                                      bool need_delete_all_messages, bool report_spam,
-                                                                      uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    log_event_id = save_block_message_sender_from_replies_on_server_log_event(message_id, need_delete_message,
-                                                                              need_delete_all_messages, report_spam);
-  }
-
-  td_->create_handler<BlockFromRepliesQuery>(get_erase_log_event_promise(log_event_id, std::move(promise)))
-      ->send(message_id, need_delete_message, need_delete_all_messages, report_spam);
-}
-
-class MessageQueryManager::DeleteAllCallMessagesOnServerLogEvent {
- public:
-  bool revoke_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(revoke_);
-    END_STORE_FLAGS();
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(revoke_);
-    END_PARSE_FLAGS();
-  }
-};
-
-uint64 MessageQueryManager::save_delete_all_call_messages_on_server_log_event(bool revoke) {
-  DeleteAllCallMessagesOnServerLogEvent log_event{revoke};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteAllCallMessagesOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::delete_all_call_messages_on_server(bool revoke, uint64 log_event_id,
-                                                             Promise<Unit> &&promise) {
-  if (log_event_id == 0) {
-    log_event_id = save_delete_all_call_messages_on_server_log_event(revoke);
-  }
-
-  AffectedHistoryQuery query = [td = td_, revoke](DialogId /*dialog_id*/, Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<DeletePhoneCallHistoryQuery>(std::move(query_promise))->send(revoke);
-  };
-  run_affected_history_query_until_complete(DialogId(), std::move(query), false,
-                                            get_erase_log_event_promise(log_event_id, std::move(promise)));
-}
-
-class MessageQueryManager::DeleteAllChannelMessagesFromSenderOnServerLogEvent {
- public:
-  ChannelId channel_id_;
-  DialogId sender_dialog_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(channel_id_, storer);
-    td::store(sender_dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(channel_id_, parser);
-    if (parser.version() >= static_cast<int32>(Version::AddKeyboardButtonFlags)) {
-      td::parse(sender_dialog_id_, parser);
-    } else {
-      UserId user_id;
-      td::parse(user_id, parser);
-      sender_dialog_id_ = DialogId(user_id);
-    }
-  }
-};
-
-uint64 MessageQueryManager::save_delete_all_channel_messages_by_sender_on_server_log_event(ChannelId channel_id,
-                                                                                           DialogId sender_dialog_id) {
-  DeleteAllChannelMessagesFromSenderOnServerLogEvent log_event{channel_id, sender_dialog_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteAllChannelMessagesFromSenderOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::delete_all_channel_messages_by_sender_on_server(ChannelId channel_id,
-                                                                          DialogId sender_dialog_id,
-                                                                          uint64 log_event_id,
-                                                                          Promise<Unit> &&promise) {
-  if (log_event_id == 0 && G()->use_chat_info_database()) {
-    log_event_id = save_delete_all_channel_messages_by_sender_on_server_log_event(channel_id, sender_dialog_id);
-  }
-
-  AffectedHistoryQuery query = [td = td_, sender_dialog_id](DialogId dialog_id,
-                                                            Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<DeleteParticipantHistoryQuery>(std::move(query_promise))
-        ->send(dialog_id.get_channel_id(), sender_dialog_id);
-  };
-  run_affected_history_query_until_complete(DialogId(channel_id), std::move(query),
-                                            sender_dialog_id.get_type() != DialogType::User,
-                                            get_erase_log_event_promise(log_event_id, std::move(promise)));
-}
-
-class MessageQueryManager::DeleteDialogHistoryOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  MessageId max_message_id_;
-  bool remove_from_dialog_list_;
-  bool revoke_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(remove_from_dialog_list_);
-    STORE_FLAG(revoke_);
-    END_STORE_FLAGS();
-
-    td::store(dialog_id_, storer);
-    td::store(max_message_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(remove_from_dialog_list_);
-    PARSE_FLAG(revoke_);
-    END_PARSE_FLAGS();
-
-    td::parse(dialog_id_, parser);
-    td::parse(max_message_id_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_delete_dialog_history_on_server_log_event(DialogId dialog_id, MessageId max_message_id,
-                                                                           bool remove_from_dialog_list, bool revoke) {
-  DeleteDialogHistoryOnServerLogEvent log_event{dialog_id, max_message_id, remove_from_dialog_list, revoke};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteDialogHistoryOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::delete_dialog_history_on_server(DialogId dialog_id, MessageId max_message_id,
-                                                          bool remove_from_dialog_list, bool revoke, bool allow_error,
-                                                          uint64 log_event_id, Promise<Unit> &&promise) {
-  LOG(INFO) << "Delete history in " << dialog_id << " up to " << max_message_id << " from server";
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id =
-        save_delete_dialog_history_on_server_log_event(dialog_id, max_message_id, remove_from_dialog_list, revoke);
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat: {
-      AffectedHistoryQuery query = [td = td_, max_message_id, remove_from_dialog_list, revoke](
-                                       DialogId dialog_id, Promise<AffectedHistory> &&query_promise) {
-        td->create_handler<DeleteHistoryQuery>(std::move(query_promise))
-            ->send(dialog_id, max_message_id, remove_from_dialog_list, revoke);
-      };
-      run_affected_history_query_until_complete(dialog_id, std::move(query), false, std::move(promise));
-      break;
-    }
-    case DialogType::Channel:
-      td_->create_handler<DeleteChannelHistoryQuery>(std::move(promise))
-          ->send(dialog_id.get_channel_id(), max_message_id, allow_error, revoke);
-      break;
-    case DialogType::SecretChat:
-      send_closure(G()->secret_chats_manager(), &SecretChatsManager::delete_all_messages,
-                   dialog_id.get_secret_chat_id(), std::move(promise));
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-class MessageQueryManager::DeleteDialogMessagesByDateOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  int32 min_date_;
-  int32 max_date_;
-  bool revoke_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(revoke_);
-    END_STORE_FLAGS();
-    td::store(dialog_id_, storer);
-    td::store(min_date_, storer);
-    td::store(max_date_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(revoke_);
-    END_PARSE_FLAGS();
-    td::parse(dialog_id_, parser);
-    td::parse(min_date_, parser);
-    td::parse(max_date_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_delete_dialog_messages_by_date_on_server_log_event(DialogId dialog_id, int32 min_date,
-                                                                                    int32 max_date, bool revoke) {
-  DeleteDialogMessagesByDateOnServerLogEvent log_event{dialog_id, min_date, max_date, revoke};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteDialogMessagesByDateOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::delete_dialog_messages_by_date_on_server(DialogId dialog_id, int32 min_date, int32 max_date,
-                                                                   bool revoke, uint64 log_event_id,
-                                                                   Promise<Unit> &&promise) {
-  if (log_event_id == 0 && G()->use_chat_info_database()) {
-    log_event_id = save_delete_dialog_messages_by_date_on_server_log_event(dialog_id, min_date, max_date, revoke);
-  }
-
-  AffectedHistoryQuery query = [td = td_, min_date, max_date, revoke](DialogId dialog_id,
-                                                                      Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<DeleteMessagesByDateQuery>(std::move(query_promise))
-        ->send(dialog_id, min_date, max_date, revoke);
-  };
-  run_affected_history_query_until_complete(dialog_id, std::move(query), true,
-                                            get_erase_log_event_promise(log_event_id, std::move(promise)));
-}
-
-class MessageQueryManager::DeleteMessagesOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  vector<MessageId> message_ids_;
-  bool revoke_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(revoke_);
-    END_STORE_FLAGS();
-
-    td::store(dialog_id_, storer);
-    td::store(message_ids_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(revoke_);
-    END_PARSE_FLAGS();
-
-    td::parse(dialog_id_, parser);
-    td::parse(message_ids_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_delete_messages_on_server_log_event(DialogId dialog_id,
-                                                                     const vector<MessageId> &message_ids,
-                                                                     bool revoke) {
-  DeleteMessagesOnServerLogEvent log_event{dialog_id, message_ids, revoke};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteMessagesOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::erase_delete_messages_log_event(uint64 log_event_id) {
-  if (!G()->close_flag()) {
-    binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-  }
-}
-
-void MessageQueryManager::delete_messages_on_server(DialogId dialog_id, vector<MessageId> message_ids, bool revoke,
-                                                    uint64 log_event_id, Promise<Unit> &&promise) {
-  if (message_ids.empty()) {
-    return promise.set_value(Unit());
-  }
-  LOG(INFO) << (revoke ? "Revoke " : "Delete ") << message_ids << " in " << dialog_id << " from server";
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_delete_messages_on_server_log_event(dialog_id, message_ids, revoke);
-  }
-
-  MultiPromiseActorSafe mpas{"DeleteMessagesOnServerMultiPromiseActor"};
-  mpas.add_promise(std::move(promise));
-  if (log_event_id != 0) {
-    mpas.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), log_event_id](Unit) {
-      send_closure(actor_id, &MessageQueryManager::erase_delete_messages_log_event, log_event_id);
-    }));
-  }
-  auto lock = mpas.get_promise();
-  auto dialog_type = dialog_id.get_type();
-  switch (dialog_type) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel: {
-      auto server_message_ids = MessageId::get_server_message_ids(message_ids);
-      const size_t MAX_SLICE_SIZE = 100;  // server-side limit
-      for (auto &slice_server_message_ids : vector_split(std::move(server_message_ids), MAX_SLICE_SIZE)) {
-        if (dialog_type != DialogType::Channel) {
-          td_->create_handler<DeleteMessagesQuery>(mpas.get_promise())
-              ->send(dialog_id, std::move(slice_server_message_ids), revoke);
-        } else {
-          td_->create_handler<DeleteChannelMessagesQuery>(mpas.get_promise())
-              ->send(dialog_id.get_channel_id(), std::move(slice_server_message_ids));
-        }
-      }
-      break;
-    }
-    case DialogType::SecretChat: {
-      vector<int64> random_ids;
-      for (auto &message_id : message_ids) {
-        auto random_id = td_->messages_manager_->get_message_random_id({dialog_id, message_id});
-        if (random_id != 0) {
-          random_ids.push_back(random_id);
-        }
-      }
-      if (!random_ids.empty()) {
-        send_closure(G()->secret_chats_manager(), &SecretChatsManager::delete_messages, dialog_id.get_secret_chat_id(),
-                     std::move(random_ids), mpas.get_promise());
-      }
-      break;
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  lock.set_value(Unit());
-}
-
-class MessageQueryManager::DeleteScheduledMessagesOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  vector<MessageId> message_ids_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(message_ids_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-    td::parse(message_ids_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_delete_scheduled_messages_on_server_log_event(DialogId dialog_id,
-                                                                               const vector<MessageId> &message_ids) {
-  DeleteScheduledMessagesOnServerLogEvent log_event{dialog_id, message_ids};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteScheduledMessagesOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::delete_scheduled_messages_on_server(DialogId dialog_id, vector<MessageId> message_ids,
-                                                              uint64 log_event_id, Promise<Unit> &&promise) {
-  if (message_ids.empty()) {
-    return promise.set_value(Unit());
-  }
-  LOG(INFO) << "Delete " << message_ids << " in " << dialog_id << " from server";
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_delete_scheduled_messages_on_server_log_event(dialog_id, message_ids);
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  td_->create_handler<DeleteScheduledMessagesQuery>(std::move(promise))->send(dialog_id, std::move(message_ids));
-}
-
-class MessageQueryManager::DeleteTopicHistoryOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  MessageId top_thread_message_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    END_STORE_FLAGS();
-    td::store(dialog_id_, storer);
-    td::store(top_thread_message_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    END_PARSE_FLAGS();
-    td::parse(dialog_id_, parser);
-    td::parse(top_thread_message_id_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_delete_topic_history_on_server_log_event(DialogId dialog_id,
-                                                                          MessageId top_thread_message_id) {
-  DeleteTopicHistoryOnServerLogEvent log_event{dialog_id, top_thread_message_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteTopicHistoryOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::delete_topic_history_on_server(DialogId dialog_id, MessageId top_thread_message_id,
-                                                         uint64 log_event_id, Promise<Unit> &&promise) {
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_delete_topic_history_on_server_log_event(dialog_id, top_thread_message_id);
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  AffectedHistoryQuery query = [td = td_, top_thread_message_id](DialogId dialog_id,
-                                                                 Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<DeleteTopicHistoryQuery>(std::move(query_promise))->send(dialog_id, top_thread_message_id);
-  };
-  run_affected_history_query_until_complete(dialog_id, std::move(query), true, std::move(promise));
-}
-
-void MessageQueryManager::read_all_topic_mentions_on_server(DialogId dialog_id, MessageId top_thread_message_id,
-                                                            uint64 log_event_id, Promise<Unit> &&promise) {
-  AffectedHistoryQuery query = [td = td_, top_thread_message_id](DialogId dialog_id,
-                                                                 Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<ReadMentionsQuery>(std::move(query_promise))->send(dialog_id, top_thread_message_id);
-  };
-  run_affected_history_query_until_complete(dialog_id, std::move(query), true, std::move(promise));
-}
-
-class MessageQueryManager::ReadAllDialogMentionsOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_read_all_dialog_mentions_on_server_log_event(DialogId dialog_id) {
-  ReadAllDialogMentionsOnServerLogEvent log_event{dialog_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ReadAllDialogMentionsOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::read_all_dialog_mentions_on_server(DialogId dialog_id, uint64 log_event_id,
-                                                             Promise<Unit> &&promise) {
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_read_all_dialog_mentions_on_server_log_event(dialog_id);
-  }
-
-  AffectedHistoryQuery query = [td = td_](DialogId dialog_id, Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<ReadMentionsQuery>(std::move(query_promise))->send(dialog_id, MessageId());
-  };
-  run_affected_history_query_until_complete(dialog_id, std::move(query), false,
-                                            get_erase_log_event_promise(log_event_id, std::move(promise)));
-}
-
-void MessageQueryManager::read_all_topic_reactions_on_server(DialogId dialog_id, MessageId top_thread_message_id,
-                                                             uint64 log_event_id, Promise<Unit> &&promise) {
-  AffectedHistoryQuery query = [td = td_, top_thread_message_id](DialogId dialog_id,
-                                                                 Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<ReadReactionsQuery>(std::move(query_promise))->send(dialog_id, top_thread_message_id);
-  };
-  run_affected_history_query_until_complete(dialog_id, std::move(query), true, std::move(promise));
-}
-
-class MessageQueryManager::ReadAllDialogReactionsOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_read_all_dialog_reactions_on_server_log_event(DialogId dialog_id) {
-  ReadAllDialogReactionsOnServerLogEvent log_event{dialog_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ReadAllDialogReactionsOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::read_all_dialog_reactions_on_server(DialogId dialog_id, uint64 log_event_id,
-                                                              Promise<Unit> &&promise) {
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_read_all_dialog_reactions_on_server_log_event(dialog_id);
-  }
-
-  AffectedHistoryQuery query = [td = td_](DialogId dialog_id, Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<ReadReactionsQuery>(std::move(query_promise))->send(dialog_id, MessageId());
-  };
-  run_affected_history_query_until_complete(dialog_id, std::move(query), false,
-                                            get_erase_log_event_promise(log_event_id, std::move(promise)));
-}
-
-void MessageQueryManager::unpin_all_topic_messages_on_server(DialogId dialog_id, MessageId top_thread_message_id,
-                                                             uint64 log_event_id, Promise<Unit> &&promise) {
-  AffectedHistoryQuery query = [td = td_, top_thread_message_id](DialogId dialog_id,
-                                                                 Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<UnpinAllMessagesQuery>(std::move(query_promise))->send(dialog_id, top_thread_message_id);
-  };
-  run_affected_history_query_until_complete(dialog_id, std::move(query), true, std::move(promise));
-}
-
-class MessageQueryManager::ReadMessageContentsOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  vector<MessageId> message_ids_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(message_ids_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-    td::parse(message_ids_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_read_message_contents_on_server_log_event(DialogId dialog_id,
-                                                                           const vector<MessageId> &message_ids) {
-  ReadMessageContentsOnServerLogEvent log_event{dialog_id, message_ids};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ReadMessageContentsOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::read_message_contents_on_server(DialogId dialog_id, vector<MessageId> message_ids,
-                                                          uint64 log_event_id, Promise<Unit> &&promise,
-                                                          bool skip_log_event) {
-  CHECK(!message_ids.empty());
-
-  LOG(INFO) << "Read contents of " << message_ids << " in " << dialog_id << " on server";
-
-  if (log_event_id == 0 && G()->use_message_database() && !skip_log_event) {
-    log_event_id = save_read_message_contents_on_server_log_event(dialog_id, message_ids);
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-      td_->create_handler<ReadMessagesContentsQuery>(std::move(promise))->send(std::move(message_ids));
-      break;
-    case DialogType::Channel:
-      td_->create_handler<ReadChannelMessagesContentsQuery>(std::move(promise))
-          ->send(dialog_id.get_channel_id(), std::move(message_ids));
-      break;
-    case DialogType::SecretChat: {
-      CHECK(message_ids.size() == 1);
-      auto random_id = td_->messages_manager_->get_message_random_id({dialog_id, message_ids[0]});
-      if (random_id != 0) {
-        send_closure(G()->secret_chats_manager(), &SecretChatsManager::send_open_message,
-                     dialog_id.get_secret_chat_id(), random_id, std::move(promise));
-      } else {
-        promise.set_error(Status::Error(400, "Message not found"));
-      }
-      break;
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-bool MessageQueryManager::has_message_pending_read_reactions(MessageFullId message_full_id) const {
-  return pending_read_reactions_.count(message_full_id) > 0;
-}
-
-void MessageQueryManager::read_message_reactions_on_server(DialogId dialog_id, vector<MessageId> message_ids) {
-  for (auto message_id : message_ids) {
-    pending_read_reactions_[{dialog_id, message_id}]++;
-  }
-  auto promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, message_ids](Result<Unit> &&result) mutable {
-        send_closure(actor_id, &MessageQueryManager::on_read_message_reactions, dialog_id, std::move(message_ids),
-                     std::move(result));
-      });
-  read_message_contents_on_server(dialog_id, std::move(message_ids), 0, std::move(promise));
-}
-
-void MessageQueryManager::on_read_message_reactions(DialogId dialog_id, vector<MessageId> &&message_ids,
-                                                    Result<Unit> &&result) {
-  for (auto message_id : message_ids) {
-    MessageFullId message_full_id{dialog_id, message_id};
-    auto it = pending_read_reactions_.find(message_full_id);
-    CHECK(it != pending_read_reactions_.end());
-    if (--it->second == 0) {
-      pending_read_reactions_.erase(it);
-    }
-
-    if (!td_->messages_manager_->have_message_force(message_full_id, "on_read_message_reactions")) {
-      continue;
-    }
-
-    if (result.is_error()) {
-      queue_message_reactions_reload(message_full_id);
-    }
-  }
-}
-
-class MessageQueryManager::UnpinAllDialogMessagesOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-  }
-};
-
-uint64 MessageQueryManager::save_unpin_all_dialog_messages_on_server_log_event(DialogId dialog_id) {
-  UnpinAllDialogMessagesOnServerLogEvent log_event{dialog_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::UnpinAllDialogMessagesOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void MessageQueryManager::unpin_all_dialog_messages_on_server(DialogId dialog_id, uint64 log_event_id,
-                                                              Promise<Unit> &&promise) {
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_unpin_all_dialog_messages_on_server_log_event(dialog_id);
-  }
-
-  AffectedHistoryQuery query = [td = td_](DialogId dialog_id, Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<UnpinAllMessagesQuery>(std::move(query_promise))->send(dialog_id, MessageId());
-  };
-  run_affected_history_query_until_complete(dialog_id, std::move(query), true,
-                                            get_erase_log_event_promise(log_event_id, std::move(promise)));
-}
-
-void MessageQueryManager::on_binlog_events(vector<BinlogEvent> &&events) {
-  if (G()->close_flag()) {
-    return;
-  }
-  bool have_old_message_database = G()->use_message_database() && !G()->td_db()->was_dialog_db_created();
-  for (auto &event : events) {
-    CHECK(event.id_ != 0);
-    switch (event.type_) {
-      case LogEvent::HandlerType::BlockMessageSenderFromRepliesOnServer: {
-        BlockMessageSenderFromRepliesOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        block_message_sender_from_replies_on_server(log_event.message_id_, log_event.delete_message_,
-                                                    log_event.delete_all_messages_, log_event.report_spam_, event.id_,
-                                                    Auto());
-        break;
-      }
-      case LogEvent::HandlerType::DeleteAllCallMessagesOnServer: {
-        DeleteAllCallMessagesOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        delete_all_call_messages_on_server(log_event.revoke_, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::DeleteAllChannelMessagesFromSenderOnServer: {
-        if (!G()->use_chat_info_database()) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        DeleteAllChannelMessagesFromSenderOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto channel_id = log_event.channel_id_;
-        auto sender_dialog_id = log_event.sender_dialog_id_;
-        Dependencies dependencies;
-        dependencies.add(channel_id);
-        dependencies.add_dialog_dependencies(sender_dialog_id);
-        if (!dependencies.resolve_force(td_, "DeleteAllChannelMessagesFromSenderOnServer") ||
-            !td_->dialog_manager_->have_input_peer(sender_dialog_id, false, AccessRights::Know)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        delete_all_channel_messages_by_sender_on_server(channel_id, sender_dialog_id, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::DeleteDialogHistoryOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        DeleteDialogHistoryOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(dialog_id, "DeleteDialogHistoryOnServerLogEvent") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        delete_dialog_history_on_server(dialog_id, log_event.max_message_id_, log_event.remove_from_dialog_list_,
-                                        log_event.revoke_, true, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::DeleteDialogMessagesByDateOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        DeleteDialogMessagesByDateOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(dialog_id, "DeleteDialogMessagesByDateOnServerLogEvent") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        delete_dialog_messages_by_date_on_server(dialog_id, log_event.min_date_, log_event.max_date_, log_event.revoke_,
-                                                 event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::DeleteMessagesOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        DeleteMessagesOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(dialog_id, "DeleteMessagesOnServerLogEvent") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        td_->messages_manager_->on_messages_deleted(dialog_id, log_event.message_ids_);
-
-        delete_messages_on_server(dialog_id, std::move(log_event.message_ids_), log_event.revoke_, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::DeleteScheduledMessagesOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        DeleteScheduledMessagesOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(dialog_id, "DeleteScheduledMessagesOnServerLogEvent") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        td_->messages_manager_->on_scheduled_messages_deleted(dialog_id, log_event.message_ids_);
-
-        delete_scheduled_messages_on_server(dialog_id, std::move(log_event.message_ids_), event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::DeleteTopicHistoryOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        DeleteTopicHistoryOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(dialog_id, "DeleteTopicHistoryOnServerLogEvent") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        delete_topic_history_on_server(dialog_id, log_event.top_thread_message_id_, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::ReadAllDialogMentionsOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ReadAllDialogMentionsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(dialog_id, "ReadAllDialogMentionsOnServerLogEvent") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        read_all_dialog_mentions_on_server(dialog_id, event.id_, Promise<Unit>());
-        break;
-      }
-      case LogEvent::HandlerType::ReadAllDialogReactionsOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ReadAllDialogReactionsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(dialog_id, "ReadAllDialogReactionsOnServerLogEvent") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        read_all_dialog_reactions_on_server(dialog_id, event.id_, Promise<Unit>());
-        break;
-      }
-      case LogEvent::HandlerType::ReadMessageContentsOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ReadMessageContentsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(dialog_id, "ReadMessageContentsOnServerLogEvent") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        read_message_contents_on_server(dialog_id, std::move(log_event.message_ids_), event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::UnpinAllDialogMessagesOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        UnpinAllDialogMessagesOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        unpin_all_dialog_messages_on_server(log_event.dialog_id_, event.id_, Auto());
-        break;
-      }
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageQueryManager.h b/third-party/td/td/td/telegram/MessageQueryManager.h
deleted file mode 100644
index 3145d2b674..0000000000
--- a/third-party/td/td/td/telegram/MessageQueryManager.h
+++ /dev/null
@@ -1,292 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AffectedHistory.h"
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogListId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageSearchFilter.h"
-#include "td/telegram/MessageThreadInfo.h"
-#include "td/telegram/MessageViewer.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/SavedMessagesTopicId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <functional>
-#include <memory>
-
-namespace td {
-
-struct BinlogEvent;
-struct FormattedText;
-struct MessageSearchOffset;
-class Td;
-
-class MessageQueryManager final : public Actor {
- public:
-  MessageQueryManager(Td *td, ActorShared<> parent);
-
-  using AffectedHistoryQuery = std::function<void(DialogId, Promise<AffectedHistory>)>;
-
-  void run_affected_history_query_until_complete(DialogId dialog_id, AffectedHistoryQuery query,
-                                                 bool get_affected_messages, Promise<Unit> &&promise);
-
-  void upload_message_covers(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                             vector<const Photo *> covers, Promise<Unit> &&promise);
-
-  void upload_message_cover(BusinessConnectionId business_connection_id, DialogId dialog_id, Photo photo,
-                            FileUploadId file_upload_id, Promise<Unit> &&promise, vector<int> bad_parts = {});
-
-  void complete_upload_message_cover(BusinessConnectionId business_connection_id, DialogId dialog_id, Photo photo,
-                                     FileUploadId file_upload_id,
-                                     telegram_api::object_ptr<telegram_api::MessageMedia> &&media_ptr,
-                                     Promise<Unit> &&promise);
-
-  void report_message_delivery(MessageFullId message_full_id, int32 until_date, bool from_push);
-
-  void reload_message_extended_media(DialogId dialog_id, vector<MessageId> message_ids);
-
-  void finish_get_message_extended_media(DialogId dialog_id, const vector<MessageId> &message_ids);
-
-  void reload_message_fact_checks(DialogId dialog_id, vector<MessageId> message_ids);
-
-  void set_message_fact_check(MessageFullId message_full_id, const FormattedText &fact_check_text,
-                              Promise<Unit> &&promise);
-
-  void search_messages(DialogListId dialog_list_id, bool ignore_folder_id, const string &query,
-                       const string &offset_str, int32 limit, MessageSearchFilter filter,
-                       td_api::object_ptr<td_api::SearchMessagesChatTypeFilter> &&dialog_type_filter, int32 min_date,
-                       int32 max_date, Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void on_get_messages_search_result(const string &query, int32 offset_date, DialogId offset_dialog_id,
-                                     MessageId offset_message_id, int32 limit, MessageSearchFilter filter,
-                                     int32 min_date, int32 max_date, int32 total_count,
-                                     vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-                                     int32 next_rate, Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void search_outgoing_document_messages(const string &query, int32 limit,
-                                         Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void on_get_outgoing_document_messages(vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-                                         Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void search_hashtag_posts(string hashtag, string offset_str, int32 limit,
-                            Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void on_get_hashtag_search_result(const string &hashtag, const MessageSearchOffset &old_offset, int32 limit,
-                                    int32 total_count,
-                                    vector<telegram_api::object_ptr<telegram_api::Message>> &&messages, int32 next_rate,
-                                    Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void search_dialog_recent_location_messages(DialogId dialog_id, int32 limit,
-                                              Promise<td_api::object_ptr<td_api::messages>> &&promise);
-
-  void on_get_recent_locations(DialogId dialog_id, int32 limit, int32 total_count,
-                               vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-                               Promise<td_api::object_ptr<td_api::messages>> &&promise);
-
-  void get_dialog_message_position_from_server(DialogId dialog_id, MessageId message_id, MessageSearchFilter filter,
-                                               MessageId top_thread_message_id,
-                                               SavedMessagesTopicId saved_messages_topic_id, Promise<int32> &&promise);
-
-  void get_message_read_date_from_server(MessageFullId message_full_id,
-                                         Promise<td_api::object_ptr<td_api::MessageReadDate>> &&promise);
-
-  void get_message_viewers(MessageFullId message_full_id,
-                           Promise<td_api::object_ptr<td_api::messageViewers>> &&promise);
-
-  void view_messages(DialogId dialog_id, const vector<MessageId> &message_ids, bool increment_view_counter);
-
-  void finish_get_message_views(DialogId dialog_id, const vector<MessageId> &message_ids);
-
-  void queue_message_reactions_reload(MessageFullId message_full_id);
-
-  void queue_message_reactions_reload(DialogId dialog_id, const vector<MessageId> &message_ids);
-
-  void try_reload_message_reactions(DialogId dialog_id, bool is_finished);
-
-  bool has_message_pending_read_reactions(MessageFullId message_full_id) const;
-
-  void get_paid_message_reaction_senders(DialogId dialog_id,
-                                         Promise<td_api::object_ptr<td_api::messageSenders>> &&promise,
-                                         bool is_recursive = false);
-
-  void get_discussion_message(DialogId dialog_id, MessageId message_id, DialogId expected_dialog_id,
-                              MessageId expected_message_id, Promise<MessageThreadInfo> &&promise);
-
-  void process_discussion_message(telegram_api::object_ptr<telegram_api::messages_discussionMessage> &&result,
-                                  DialogId dialog_id, MessageId message_id, DialogId expected_dialog_id,
-                                  MessageId expected_message_id, Promise<MessageThreadInfo> promise);
-
-  void block_message_sender_from_replies_on_server(MessageId message_id, bool need_delete_message,
-                                                   bool need_delete_all_messages, bool report_spam, uint64 log_event_id,
-                                                   Promise<Unit> &&promise);
-
-  void delete_all_call_messages_on_server(bool revoke, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void delete_all_channel_messages_by_sender_on_server(ChannelId channel_id, DialogId sender_dialog_id,
-                                                       uint64 log_event_id, Promise<Unit> &&promise);
-
-  void delete_dialog_history_on_server(DialogId dialog_id, MessageId max_message_id, bool remove_from_dialog_list,
-                                       bool revoke, bool allow_error, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void delete_dialog_messages_by_date_on_server(DialogId dialog_id, int32 min_date, int32 max_date, bool revoke,
-                                                uint64 log_event_id, Promise<Unit> &&promise);
-
-  void delete_messages_on_server(DialogId dialog_id, vector<MessageId> message_ids, bool revoke, uint64 log_event_id,
-                                 Promise<Unit> &&promise);
-
-  void delete_scheduled_messages_on_server(DialogId dialog_id, vector<MessageId> message_ids, uint64 log_event_id,
-                                           Promise<Unit> &&promise);
-
-  void delete_topic_history_on_server(DialogId dialog_id, MessageId top_thread_message_id, uint64 log_event_id,
-                                      Promise<Unit> &&promise);
-
-  void read_all_dialog_mentions_on_server(DialogId dialog_id, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void read_all_dialog_reactions_on_server(DialogId dialog_id, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void read_all_topic_mentions_on_server(DialogId dialog_id, MessageId top_thread_message_id, uint64 log_event_id,
-                                         Promise<Unit> &&promise);
-
-  void read_all_topic_reactions_on_server(DialogId dialog_id, MessageId top_thread_message_id, uint64 log_event_id,
-                                          Promise<Unit> &&promise);
-
-  void read_message_contents_on_server(DialogId dialog_id, vector<MessageId> message_ids, uint64 log_event_id,
-                                       Promise<Unit> &&promise, bool skip_log_event = false);
-
-  void read_message_reactions_on_server(DialogId dialog_id, vector<MessageId> message_ids);
-
-  void unpin_all_dialog_messages_on_server(DialogId dialog_id, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void unpin_all_topic_messages_on_server(DialogId dialog_id, MessageId top_thread_message_id, uint64 log_event_id,
-                                          Promise<Unit> &&promise);
-
-  void on_binlog_events(vector<BinlogEvent> &&events);
-
- private:
-  class BlockMessageSenderFromRepliesOnServerLogEvent;
-  class DeleteAllCallMessagesOnServerLogEvent;
-  class DeleteAllChannelMessagesFromSenderOnServerLogEvent;
-  class DeleteDialogHistoryOnServerLogEvent;
-  class DeleteDialogMessagesByDateOnServerLogEvent;
-  class DeleteMessagesOnServerLogEvent;
-  class DeleteScheduledMessagesOnServerLogEvent;
-  class DeleteTopicHistoryOnServerLogEvent;
-  class ReadAllDialogMentionsOnServerLogEvent;
-  class ReadAllDialogReactionsOnServerLogEvent;
-  class ReadMessageContentsOnServerLogEvent;
-  class UnpinAllDialogMessagesOnServerLogEvent;
-
-  class UploadCoverCallback;
-
-  static constexpr int32 MAX_SEARCH_MESSAGES = 100;  // server-side limit
-
-  struct BeingUploadedCover {
-    BusinessConnectionId business_connection_id_;
-    DialogId dialog_id_;
-    Photo photo_;
-    telegram_api::object_ptr<telegram_api::InputFile> input_file_;
-    Promise<Unit> promise_;
-  };
-
-  void tear_down() final;
-
-  void on_get_affected_history(DialogId dialog_id, AffectedHistoryQuery query, bool get_affected_messages,
-                               AffectedHistory affected_history, Promise<Unit> &&promise);
-
-  void on_upload_cover(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_cover_error(FileUploadId file_upload_id, Status status);
-
-  void do_upload_cover(FileUploadId file_upload_id, BeingUploadedCover &&being_uploaded_cover);
-
-  void on_reload_message_fact_checks(DialogId dialog_id, const vector<MessageId> &message_ids,
-                                     Result<vector<telegram_api::object_ptr<telegram_api::factCheck>>> r_fact_checks);
-
-  void on_get_message_viewers(DialogId dialog_id, MessageViewers message_viewers, bool is_recursive,
-                              Promise<td_api::object_ptr<td_api::messageViewers>> &&promise);
-
-  void on_read_message_reactions(DialogId dialog_id, vector<MessageId> &&message_ids, Result<Unit> &&result);
-
-  void process_discussion_message_impl(telegram_api::object_ptr<telegram_api::messages_discussionMessage> &&result,
-                                       DialogId dialog_id, MessageId message_id, DialogId expected_dialog_id,
-                                       MessageId expected_message_id, Promise<MessageThreadInfo> promise);
-
-  void erase_delete_messages_log_event(uint64 log_event_id);
-
-  static uint64 save_block_message_sender_from_replies_on_server_log_event(MessageId message_id,
-                                                                           bool need_delete_message,
-                                                                           bool need_delete_all_messages,
-                                                                           bool report_spam);
-
-  static uint64 save_delete_all_call_messages_on_server_log_event(bool revoke);
-
-  static uint64 save_delete_all_channel_messages_by_sender_on_server_log_event(ChannelId channel_id,
-                                                                               DialogId sender_dialog_id);
-
-  static uint64 save_delete_dialog_history_on_server_log_event(DialogId dialog_id, MessageId max_message_id,
-                                                               bool remove_from_dialog_list, bool revoke);
-
-  static uint64 save_delete_dialog_messages_by_date_on_server_log_event(DialogId dialog_id, int32 min_date,
-                                                                        int32 max_date, bool revoke);
-
-  static uint64 save_delete_messages_on_server_log_event(DialogId dialog_id, const vector<MessageId> &message_ids,
-                                                         bool revoke);
-
-  static uint64 save_delete_scheduled_messages_on_server_log_event(DialogId dialog_id,
-                                                                   const vector<MessageId> &message_ids);
-
-  static uint64 save_delete_topic_history_on_server_log_event(DialogId dialog_id, MessageId top_thread_message_id);
-
-  static uint64 save_read_all_dialog_mentions_on_server_log_event(DialogId dialog_id);
-
-  static uint64 save_read_all_dialog_reactions_on_server_log_event(DialogId dialog_id);
-
-  static uint64 save_read_message_contents_on_server_log_event(DialogId dialog_id,
-                                                               const vector<MessageId> &message_ids);
-
-  static uint64 save_unpin_all_dialog_messages_on_server_log_event(DialogId dialog_id);
-
-  FlatHashMap<FileUploadId, BeingUploadedCover, FileUploadIdHash> being_uploaded_covers_;
-
-  FlatHashSet<MessageFullId, MessageFullIdHash> being_reloaded_extended_media_message_full_ids_;
-
-  FlatHashSet<MessageFullId, MessageFullIdHash> being_reloaded_fact_checks_;
-
-  FlatHashSet<MessageFullId, MessageFullIdHash> need_view_counter_increment_message_full_ids_;
-  FlatHashSet<MessageFullId, MessageFullIdHash> being_reloaded_views_message_full_ids_;
-
-  struct ReactionsToReload {
-    FlatHashSet<MessageId, MessageIdHash> message_ids;
-    bool is_request_sent = false;
-  };
-  FlatHashMap<DialogId, ReactionsToReload, DialogIdHash> being_reloaded_reactions_;
-
-  FlatHashMap<MessageFullId, int32, MessageFullIdHash> pending_read_reactions_;
-
-  std::shared_ptr<UploadCoverCallback> upload_cover_callback_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageQuote.cpp b/third-party/td/td/td/telegram/MessageQuote.cpp
deleted file mode 100644
index 9a51474d86..0000000000
--- a/third-party/td/td/td/telegram/MessageQuote.cpp
+++ /dev/null
@@ -1,238 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageQuote.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-MessageQuote::~MessageQuote() = default;
-
-MessageQuote::MessageQuote(Td *td,
-                           telegram_api::object_ptr<telegram_api::inputReplyToMessage> &input_reply_to_message) {
-  CHECK(input_reply_to_message != nullptr);
-  if (input_reply_to_message->quote_text_.empty()) {
-    return;
-  }
-  text_ = get_formatted_text(td->user_manager_.get(), std::move(input_reply_to_message->quote_text_),
-                             std::move(input_reply_to_message->quote_entities_), true, false, "inputReplyToMessage");
-  remove_unallowed_quote_entities(text_);
-  position_ = max(0, input_reply_to_message->quote_offset_);
-}
-
-MessageQuote::MessageQuote(Td *td, telegram_api::object_ptr<telegram_api::messageReplyHeader> &reply_header) {
-  CHECK(reply_header != nullptr);
-  if (reply_header->quote_text_.empty()) {
-    return;
-  }
-  text_ = get_formatted_text(td->user_manager_.get(), std::move(reply_header->quote_text_),
-                             std::move(reply_header->quote_entities_), true, false, "messageReplyHeader");
-  remove_unallowed_quote_entities(text_);
-  position_ = max(0, reply_header->quote_offset_);
-  is_manual_ = reply_header->quote_;
-}
-
-MessageQuote::MessageQuote(Td *td, td_api::object_ptr<td_api::inputTextQuote> quote) {
-  if (quote == nullptr) {
-    return;
-  }
-  int32 ltrim_count = 0;
-  auto r_text = get_formatted_text(td, td->dialog_manager_->get_my_dialog_id(), std::move(quote->text_),
-                                   td->auth_manager_->is_bot(), true, true, false, &ltrim_count);
-  if (!r_text.is_ok() || r_text.ok().text.empty()) {
-    return;
-  }
-  text_ = r_text.move_as_ok();
-  position_ = quote->position_;
-  if (0 <= position_ && position_ <= 1000000) {  // some unreasonably big bound
-    position_ += ltrim_count;
-  } else {
-    position_ = 0;
-  }
-}
-
-MessageQuote MessageQuote::clone(bool ignore_is_manual) const {
-  return {FormattedText(text_), position_, ignore_is_manual ? true : is_manual_};
-}
-
-MessageQuote MessageQuote::create_automatic_quote(Td *td, FormattedText &&text) {
-  truncate_formatted_text(
-      text, static_cast<size_t>(td->option_manager_->get_option_integer("message_reply_quote_length_max")));
-  return MessageQuote(std::move(text), 0, false);
-}
-
-int MessageQuote::need_quote_changed_warning(const MessageQuote &old_quote, const MessageQuote &new_quote) {
-  if (old_quote.position_ != new_quote.position_ &&
-      max(old_quote.position_, new_quote.position_) <
-          static_cast<int32>(min(old_quote.text_.text.size(), new_quote.text_.text.size()))) {
-    // quote position can't change
-    return 1;
-  }
-  if (old_quote.is_manual_ != new_quote.is_manual_) {
-    // quote manual property can't change
-    return 1;
-  }
-  if (old_quote.text_ != new_quote.text_) {
-    if (old_quote.is_manual_) {
-      return 1;
-    }
-    // automatic quote can change if the original message was edited
-    return -1;
-  }
-  return 0;
-}
-
-void MessageQuote::add_dependencies(Dependencies &dependencies) const {
-  add_formatted_text_dependencies(dependencies, &text_);  // just in case
-}
-
-void MessageQuote::update_input_reply_to_message(Td *td,
-                                                 telegram_api::inputReplyToMessage *input_reply_to_message) const {
-  CHECK(input_reply_to_message != nullptr);
-  if (is_empty()) {
-    return;
-  }
-  CHECK(is_manual_);
-  input_reply_to_message->flags_ |= telegram_api::inputReplyToMessage::QUOTE_TEXT_MASK;
-  input_reply_to_message->quote_text_ = text_.text;
-  input_reply_to_message->quote_entities_ =
-      get_input_message_entities(td->user_manager_.get(), text_.entities, "update_input_reply_to_message");
-  if (!input_reply_to_message->quote_entities_.empty()) {
-    input_reply_to_message->flags_ |= telegram_api::inputReplyToMessage::QUOTE_ENTITIES_MASK;
-  }
-  if (position_ != 0) {
-    input_reply_to_message->flags_ |= telegram_api::inputReplyToMessage::QUOTE_OFFSET_MASK;
-    input_reply_to_message->quote_offset_ = position_;
-  }
-}
-
-// only for draft messages
-td_api::object_ptr<td_api::inputTextQuote> MessageQuote::get_input_text_quote_object(
-    const UserManager *user_manager) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  CHECK(is_manual_);
-  return td_api::make_object<td_api::inputTextQuote>(get_formatted_text_object(user_manager, text_, true, -1),
-                                                     position_);
-}
-
-td_api::object_ptr<td_api::textQuote> MessageQuote::get_text_quote_object(const UserManager *user_manager) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::textQuote>(get_formatted_text_object(user_manager, text_, true, -1), position_,
-                                                is_manual_);
-}
-
-bool operator==(const MessageQuote &lhs, const MessageQuote &rhs) {
-  return lhs.text_ == rhs.text_ && lhs.position_ == rhs.position_ && lhs.is_manual_ == rhs.is_manual_;
-}
-
-bool operator!=(const MessageQuote &lhs, const MessageQuote &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageQuote &quote) {
-  if (!quote.is_empty()) {
-    string_builder << " with " << quote.text_.text.size() << (!quote.is_manual_ ? " automatically" : "")
-                   << " quoted bytes";
-    if (quote.position_ != 0) {
-      string_builder << " at position " << quote.position_;
-    }
-  }
-  return string_builder;
-}
-
-void MessageQuote::remove_unallowed_quote_entities(FormattedText &text) {
-  auto is_allowed_quote_entity = [](const MessageEntity &entity) {
-    switch (entity.type) {
-      case MessageEntity::Type::Bold:
-      case MessageEntity::Type::Italic:
-      case MessageEntity::Type::Underline:
-      case MessageEntity::Type::Strikethrough:
-      case MessageEntity::Type::Spoiler:
-      case MessageEntity::Type::CustomEmoji:
-        return true;
-      default:
-        return false;
-    }
-  };
-
-  td::remove_if(text.entities, [&](const auto &entity) { return !is_allowed_quote_entity(entity); });
-}
-
-int32 MessageQuote::search_quote(FormattedText &&text, FormattedText &&quote, int32 quote_position) {
-  auto process_quote_entities = [](FormattedText &text, int32 length) {
-    remove_unallowed_quote_entities(text);
-    td::remove_if(text.entities, [length](const MessageEntity &entity) {
-      if (entity.offset < 0 || entity.offset >= length) {
-        return true;
-      }
-      if (entity.length <= 0 || entity.length > length - entity.offset) {
-        return true;
-      }
-      return false;
-    });
-    remove_empty_entities(text.entities);
-    fix_entities(text.entities);
-    remove_empty_entities(text.entities);
-  };
-  auto length = narrow_cast<int32>(utf8_utf16_length(text.text));
-  auto quote_length = narrow_cast<int32>(utf8_utf16_length(quote.text));
-  if (quote_length == 0 || quote_length > length) {
-    return -1;
-  }
-  process_quote_entities(text, length);
-  process_quote_entities(quote, quote_length);
-
-  quote_position = clamp(quote_position, 0, length - 1);
-  vector<size_t> byte_positions;
-  byte_positions.reserve(length);
-  for (size_t i = 0; i < text.text.size(); i++) {
-    auto c = static_cast<unsigned char>(text.text[i]);
-    if (is_utf8_character_first_code_unit(c)) {
-      byte_positions.push_back(i);
-      if (c >= 0xf0) {  // >= 4 bytes in symbol => surrogate pair
-        byte_positions.push_back(string::npos);
-      }
-    }
-  }
-  CHECK(byte_positions.size() == static_cast<size_t>(length));
-  auto check_position = [&text, &quote, &byte_positions, length, quote_length](int32 position) {
-    if (position < 0 || position > length - quote_length) {
-      return false;
-    }
-    auto byte_position = byte_positions[position];
-    if (byte_position == string::npos || text.text[byte_position] != quote.text[0] ||
-        Slice(text.text).substr(byte_position, quote.text.size()) != quote.text) {
-      return false;
-    }
-    return true;
-  };
-  for (int32 i = 0; quote_position - i >= 0 || quote_position + i + 1 <= length - quote_length; i++) {
-    if (check_position(quote_position - i)) {
-      return quote_position - i;
-    }
-    if (check_position(quote_position + i + 1)) {
-      return quote_position + i + 1;
-    }
-  }
-  return -1;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageQuote.h b/third-party/td/td/td/telegram/MessageQuote.h
deleted file mode 100644
index dad9e78ab0..0000000000
--- a/third-party/td/td/td/telegram/MessageQuote.h
+++ /dev/null
@@ -1,85 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-
-class Td;
-
-class MessageQuote {
-  FormattedText text_;
-  int32 position_ = 0;
-  bool is_manual_ = true;
-
-  friend bool operator==(const MessageQuote &lhs, const MessageQuote &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageQuote &quote);
-
- public:
-  MessageQuote() = default;
-  MessageQuote(const MessageQuote &) = delete;
-  MessageQuote &operator=(const MessageQuote &) = delete;
-  MessageQuote(MessageQuote &&) = default;
-  MessageQuote &operator=(MessageQuote &&) = default;
-  ~MessageQuote();
-
-  MessageQuote(FormattedText &&text, int32 position, bool is_manual = true)
-      : text_(std::move(text)), position_(max(0, position)), is_manual_(is_manual) {
-    remove_unallowed_quote_entities(text_);
-  }
-
-  MessageQuote(Td *td, telegram_api::object_ptr<telegram_api::inputReplyToMessage> &input_reply_to_message);
-
-  MessageQuote(Td *td, telegram_api::object_ptr<telegram_api::messageReplyHeader> &reply_header);
-
-  MessageQuote(Td *td, td_api::object_ptr<td_api::inputTextQuote> quote);
-
-  static MessageQuote create_automatic_quote(Td *td, FormattedText &&text);
-
-  static int need_quote_changed_warning(const MessageQuote &old_quote, const MessageQuote &new_quote);
-
-  static int32 search_quote(FormattedText &&text, FormattedText &&quote, int32 quote_position);
-
-  bool is_empty() const {
-    return text_.text.empty();
-  }
-
-  MessageQuote clone(bool ignore_is_manual = false) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  void update_input_reply_to_message(Td *td, telegram_api::inputReplyToMessage *input_reply_to_message) const;
-
-  td_api::object_ptr<td_api::inputTextQuote> get_input_text_quote_object(const UserManager *user_manager) const;
-
-  td_api::object_ptr<td_api::textQuote> get_text_quote_object(const UserManager *user_manager) const;
-
-  static void remove_unallowed_quote_entities(FormattedText &text);
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const MessageQuote &lhs, const MessageQuote &rhs);
-
-bool operator!=(const MessageQuote &lhs, const MessageQuote &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageQuote &quote);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageQuote.hpp b/third-party/td/td/td/telegram/MessageQuote.hpp
deleted file mode 100644
index 9ca5ceffa2..0000000000
--- a/third-party/td/td/td/telegram/MessageQuote.hpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageQuote.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MessageQuote::store(StorerT &storer) const {
-  bool has_text = !text_.text.empty();
-  bool has_position = position_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_text);
-  STORE_FLAG(has_position);
-  STORE_FLAG(is_manual_);
-  END_STORE_FLAGS();
-  if (has_text) {
-    td::store(text_, storer);
-  }
-  if (has_position) {
-    td::store(position_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageQuote::parse(ParserT &parser) {
-  bool has_text;
-  bool has_position;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_text);
-  PARSE_FLAG(has_position);
-  PARSE_FLAG(is_manual_);
-  END_PARSE_FLAGS();
-  if (has_text) {
-    td::parse(text_, parser);
-    remove_unallowed_quote_entities(text_);
-  }
-  if (has_position) {
-    td::parse(position_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReaction.cpp b/third-party/td/td/td/telegram/MessageReaction.cpp
deleted file mode 100644
index 48e6428d1a..0000000000
--- a/third-party/td/td/td/telegram/MessageReaction.cpp
+++ /dev/null
@@ -1,1231 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageReaction.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/ReactionManager.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <algorithm>
-#include <limits>
-#include <utility>
-
-namespace td {
-
-static size_t get_max_reaction_count() {
-  bool is_premium = G()->get_option_boolean("is_premium");
-  auto option_key = is_premium ? Slice("reactions_user_max_premium") : Slice("reactions_user_max_default");
-  return static_cast<size_t>(
-      max(static_cast<int32>(1), static_cast<int32>(G()->get_option_integer(option_key, is_premium ? 3 : 1))));
-}
-
-class SendReactionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SendReactionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(MessageFullId message_full_id, vector<ReactionType> reaction_types, bool is_big, bool add_to_recent) {
-    dialog_id_ = message_full_id.get_dialog_id();
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-    if (!reaction_types.empty()) {
-      flags |= telegram_api::messages_sendReaction::REACTION_MASK;
-
-      if (is_big) {
-        flags |= telegram_api::messages_sendReaction::BIG_MASK;
-      }
-
-      if (add_to_recent) {
-        flags |= telegram_api::messages_sendReaction::ADD_TO_RECENT_MASK;
-      }
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendReaction(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-                                            message_full_id.get_message_id().get_server_message_id().get(),
-                                            ReactionType::get_input_reactions(reaction_types)),
-        {{dialog_id_}, {message_full_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendReaction>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendReactionQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "MESSAGE_NOT_MODIFIED") {
-      return promise_.set_value(Unit());
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendReactionQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendPaidReactionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  int64 star_count_;
-
- public:
-  explicit SendPaidReactionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(MessageFullId message_full_id, int32 star_count, bool use_default_paid_reaction_type,
-            PaidReactionType paid_reaction_type, int64 random_id) {
-    dialog_id_ = message_full_id.get_dialog_id();
-    star_count_ = star_count;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::PaidReactionPrivacy> privacy;
-    if (!use_default_paid_reaction_type) {
-      flags |= telegram_api::messages_sendPaidReaction::PRIVATE_MASK;
-      privacy = paid_reaction_type.get_input_paid_reaction_privacy(td_);
-      CHECK(privacy != nullptr);
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendPaidReaction(flags, std::move(input_peer),
-                                                message_full_id.get_message_id().get_server_message_id().get(),
-                                                star_count, random_id, std::move(privacy)),
-        {{dialog_id_}, {message_full_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendPaidReaction>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendPaidReactionQuery: " << to_string(ptr);
-    td_->star_manager_->add_pending_owned_star_count(star_count_, true);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "MESSAGE_NOT_MODIFIED") {
-      td_->star_manager_->add_pending_owned_star_count(star_count_, true);
-      return promise_.set_value(Unit());
-    }
-    td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendPaidReactionQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class TogglePaidReactionPrivacyQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit TogglePaidReactionPrivacyQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(MessageFullId message_full_id, PaidReactionType paid_reaction_type) {
-    dialog_id_ = message_full_id.get_dialog_id();
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_togglePaidReactionPrivacy(std::move(input_peer),
-                                                         message_full_id.get_message_id().get_server_message_id().get(),
-                                                         paid_reaction_type.get_input_paid_reaction_privacy(td_)),
-        {{dialog_id_}, {message_full_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_togglePaidReactionPrivacy>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "TogglePaidReactionPrivacyQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPaidReactionPrivacyQuery final : public Td::ResultHandler {
- public:
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getPaidReactionPrivacy()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPaidReactionPrivacy>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPaidReactionPrivacyQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive " << status;
-    }
-  }
-};
-
-class GetMessageReactionsListQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::addedReactions>> promise_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-  ReactionType reaction_type_;
-  string offset_;
-
- public:
-  explicit GetMessageReactionsListQuery(Promise<td_api::object_ptr<td_api::addedReactions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(MessageFullId message_full_id, ReactionType reaction_type, string offset, int32 limit) {
-    dialog_id_ = message_full_id.get_dialog_id();
-    message_id_ = message_full_id.get_message_id();
-    reaction_type_ = std::move(reaction_type);
-    offset_ = std::move(offset);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-    if (!reaction_type_.is_empty()) {
-      flags |= telegram_api::messages_getMessageReactionsList::REACTION_MASK;
-    }
-    if (!offset_.empty()) {
-      flags |= telegram_api::messages_getMessageReactionsList::OFFSET_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getMessageReactionsList(flags, std::move(input_peer),
-                                                       message_id_.get_server_message_id().get(),
-                                                       reaction_type_.get_input_reaction(), offset_, limit),
-        {{message_full_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getMessageReactionsList>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetMessageReactionsListQuery: " << to_string(ptr);
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetMessageReactionsListQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetMessageReactionsListQuery");
-
-    int32 total_count = ptr->count_;
-    auto received_reaction_count = static_cast<int32>(ptr->reactions_.size());
-    if (total_count < received_reaction_count) {
-      LOG(ERROR) << "Receive invalid total_count in " << to_string(ptr);
-      total_count = received_reaction_count;
-    }
-
-    vector<td_api::object_ptr<td_api::addedReaction>> reactions;
-    FlatHashMap<ReactionType, vector<DialogId>, ReactionTypeHash> recent_reaction_types;
-    for (const auto &reaction : ptr->reactions_) {
-      DialogId dialog_id(reaction->peer_id_);
-      auto reaction_type = ReactionType(reaction->reaction_);
-      if (!dialog_id.is_valid() ||
-          (reaction_type_.is_empty() ? reaction_type.is_empty() : reaction_type_ != reaction_type)) {
-        LOG(ERROR) << "Receive unexpected " << to_string(reaction);
-        continue;
-      }
-
-      if (offset_.empty()) {
-        recent_reaction_types[reaction_type].push_back(dialog_id);
-      }
-
-      auto message_sender = get_min_message_sender_object(td_, dialog_id, "GetMessageReactionsListQuery");
-      if (message_sender != nullptr) {
-        reactions.push_back(td_api::make_object<td_api::addedReaction>(
-            reaction_type.get_reaction_type_object(), std::move(message_sender), reaction->my_, reaction->date_));
-      }
-    }
-
-    if (offset_.empty()) {
-      td_->messages_manager_->on_get_message_reaction_list({dialog_id_, message_id_}, reaction_type_,
-                                                           std::move(recent_reaction_types), total_count);
-    }
-
-    promise_.set_value(
-        td_api::make_object<td_api::addedReactions>(total_count, std::move(reactions), ptr->next_offset_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetMessageReactionsListQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReportReactionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReportReactionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id, DialogId chooser_dialog_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    auto chooser_input_peer = td_->dialog_manager_->get_input_peer(chooser_dialog_id, AccessRights::Know);
-    if (chooser_input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Reaction sender is not accessible"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_reportReaction(
-        std::move(input_peer), message_id.get_server_message_id().get(), std::move(chooser_input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_reportReaction>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReportReactionQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-MessageReaction::MessageReaction(ReactionType reaction_type, int32 choose_count, bool is_chosen,
-                                 DialogId my_recent_chooser_dialog_id, vector<DialogId> &&recent_chooser_dialog_ids,
-                                 vector<std::pair<ChannelId, MinChannel>> &&recent_chooser_min_channels)
-    : reaction_type_(std::move(reaction_type))
-    , choose_count_(choose_count)
-    , is_chosen_(is_chosen)
-    , my_recent_chooser_dialog_id_(my_recent_chooser_dialog_id)
-    , recent_chooser_dialog_ids_(std::move(recent_chooser_dialog_ids))
-    , recent_chooser_min_channels_(std::move(recent_chooser_min_channels)) {
-  if (my_recent_chooser_dialog_id_.is_valid()) {
-    CHECK(td::contains(recent_chooser_dialog_ids_, my_recent_chooser_dialog_id_));
-  }
-  fix_choose_count();
-}
-
-void MessageReaction::add_my_recent_chooser_dialog_id(DialogId dialog_id) {
-  CHECK(!my_recent_chooser_dialog_id_.is_valid());
-  my_recent_chooser_dialog_id_ = dialog_id;
-  add_to_top(recent_chooser_dialog_ids_, MAX_RECENT_CHOOSERS + 1, dialog_id);
-  fix_choose_count();
-}
-
-bool MessageReaction::remove_my_recent_chooser_dialog_id() {
-  if (my_recent_chooser_dialog_id_.is_valid()) {
-    bool is_removed = td::remove(recent_chooser_dialog_ids_, my_recent_chooser_dialog_id_);
-    CHECK(is_removed);
-    my_recent_chooser_dialog_id_ = DialogId();
-    return true;
-  }
-  return false;
-}
-
-void MessageReaction::update_from(const MessageReaction &old_reaction) {
-  CHECK(old_reaction.is_chosen());
-  is_chosen_ = true;
-
-  auto my_dialog_id = old_reaction.get_my_recent_chooser_dialog_id();
-  if (my_dialog_id.is_valid() && td::contains(recent_chooser_dialog_ids_, my_dialog_id)) {
-    my_recent_chooser_dialog_id_ = my_dialog_id;
-  }
-}
-
-void MessageReaction::update_recent_chooser_dialog_ids(const MessageReaction &old_reaction) {
-  if (recent_chooser_dialog_ids_.size() != MAX_RECENT_CHOOSERS) {
-    return;
-  }
-  CHECK(is_chosen_ && old_reaction.is_chosen_);
-  CHECK(reaction_type_ == old_reaction.reaction_type_);
-  CHECK(old_reaction.recent_chooser_dialog_ids_.size() == MAX_RECENT_CHOOSERS + 1);
-  for (size_t i = 0; i < MAX_RECENT_CHOOSERS; i++) {
-    if (recent_chooser_dialog_ids_[i] != old_reaction.recent_chooser_dialog_ids_[i]) {
-      return;
-    }
-  }
-  my_recent_chooser_dialog_id_ = old_reaction.my_recent_chooser_dialog_id_;
-  recent_chooser_dialog_ids_ = old_reaction.recent_chooser_dialog_ids_;
-  recent_chooser_min_channels_ = old_reaction.recent_chooser_min_channels_;
-  fix_choose_count();
-}
-
-void MessageReaction::set_as_chosen(DialogId my_dialog_id, bool have_recent_choosers) {
-  CHECK(!is_chosen_);
-
-  is_chosen_ = true;
-  choose_count_++;
-  if (have_recent_choosers) {
-    remove_my_recent_chooser_dialog_id();
-    add_my_recent_chooser_dialog_id(my_dialog_id);
-  }
-}
-
-void MessageReaction::unset_as_chosen() {
-  CHECK(is_chosen_);
-
-  is_chosen_ = false;
-  choose_count_--;
-  remove_my_recent_chooser_dialog_id();
-  fix_choose_count();
-}
-
-void MessageReaction::add_paid_reaction(int32 star_count) {
-  is_chosen_ = true;
-  CHECK(star_count <= std::numeric_limits<int32>::max() - choose_count_);
-  choose_count_ += star_count;
-}
-
-void MessageReaction::fix_choose_count() {
-  choose_count_ = max(choose_count_, narrow_cast<int32>(recent_chooser_dialog_ids_.size()));
-}
-
-void MessageReaction::set_my_recent_chooser_dialog_id(DialogId my_dialog_id) {
-  if (!my_recent_chooser_dialog_id_.is_valid() || my_recent_chooser_dialog_id_ == my_dialog_id) {
-    return;
-  }
-  td::remove(recent_chooser_dialog_ids_, my_dialog_id);
-  for (auto &dialog_id : recent_chooser_dialog_ids_) {
-    if (dialog_id == my_recent_chooser_dialog_id_) {
-      dialog_id = my_dialog_id;
-    }
-  }
-  CHECK(td::contains(recent_chooser_dialog_ids_, my_dialog_id));
-  my_recent_chooser_dialog_id_ = my_dialog_id;
-}
-
-td_api::object_ptr<td_api::messageReaction> MessageReaction::get_message_reaction_object(Td *td, UserId my_user_id,
-                                                                                         UserId peer_user_id) const {
-  CHECK(!is_empty());
-
-  td_api::object_ptr<td_api::MessageSender> used_sender;
-  vector<td_api::object_ptr<td_api::MessageSender>> recent_choosers;
-  if (my_user_id.is_valid()) {
-    CHECK(peer_user_id.is_valid());
-    if (is_chosen()) {
-      auto recent_chooser = get_min_message_sender_object(td, DialogId(my_user_id), "get_message_reaction_object");
-      if (recent_chooser != nullptr) {
-        used_sender = get_min_message_sender_object(td, DialogId(my_user_id), "get_message_reaction_object");
-        recent_choosers.push_back(std::move(recent_chooser));
-      }
-    }
-    if (choose_count_ >= (is_chosen() ? 2 : 1)) {
-      auto recent_chooser = get_min_message_sender_object(td, DialogId(peer_user_id), "get_message_reaction_object");
-      if (recent_chooser != nullptr) {
-        recent_choosers.push_back(std::move(recent_chooser));
-      }
-    }
-  } else {
-    for (auto dialog_id : recent_chooser_dialog_ids_) {
-      auto recent_chooser = get_min_message_sender_object(td, dialog_id, "get_message_reaction_object");
-      if (recent_chooser != nullptr) {
-        if (is_chosen() && dialog_id == my_recent_chooser_dialog_id_) {
-          used_sender = get_min_message_sender_object(td, dialog_id, "get_message_reaction_object");
-        }
-        recent_choosers.push_back(std::move(recent_chooser));
-        if (recent_choosers.size() == MAX_RECENT_CHOOSERS) {
-          break;
-        }
-      }
-    }
-  }
-  return td_api::make_object<td_api::messageReaction>(reaction_type_.get_reaction_type_object(), choose_count_,
-                                                      is_chosen_, std::move(used_sender), std::move(recent_choosers));
-}
-
-bool operator==(const MessageReaction &lhs, const MessageReaction &rhs) {
-  return lhs.reaction_type_ == rhs.reaction_type_ && lhs.choose_count_ == rhs.choose_count_ &&
-         lhs.is_chosen_ == rhs.is_chosen_ && lhs.my_recent_chooser_dialog_id_ == rhs.my_recent_chooser_dialog_id_ &&
-         lhs.recent_chooser_dialog_ids_ == rhs.recent_chooser_dialog_ids_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageReaction &reaction) {
-  string_builder << '[' << reaction.reaction_type_ << (reaction.is_chosen_ ? " X " : " x ") << reaction.choose_count_;
-  if (!reaction.recent_chooser_dialog_ids_.empty()) {
-    string_builder << " by " << reaction.recent_chooser_dialog_ids_;
-    if (reaction.my_recent_chooser_dialog_id_.is_valid()) {
-      string_builder << " and my " << reaction.my_recent_chooser_dialog_id_;
-    }
-  }
-  return string_builder << ']';
-}
-
-td_api::object_ptr<td_api::unreadReaction> UnreadMessageReaction::get_unread_reaction_object(Td *td) const {
-  auto sender_id = get_min_message_sender_object(td, sender_dialog_id_, "get_unread_reaction_object");
-  if (sender_id == nullptr) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::unreadReaction>(reaction_type_.get_reaction_type_object(), std::move(sender_id),
-                                                     is_big_);
-}
-
-bool operator==(const UnreadMessageReaction &lhs, const UnreadMessageReaction &rhs) {
-  return lhs.reaction_type_ == rhs.reaction_type_ && lhs.sender_dialog_id_ == rhs.sender_dialog_id_ &&
-         lhs.is_big_ == rhs.is_big_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const UnreadMessageReaction &unread_reaction) {
-  return string_builder << '[' << unread_reaction.reaction_type_ << (unread_reaction.is_big_ ? " BY " : " by ")
-                        << unread_reaction.sender_dialog_id_ << ']';
-}
-
-bool MessageReactions::are_empty() const {
-  return reactions_.empty() && pending_paid_reactions_ == 0;
-}
-
-unique_ptr<MessageReactions> MessageReactions::get_message_reactions(
-    Td *td, telegram_api::object_ptr<telegram_api::messageReactions> &&reactions, bool is_bot) {
-  if (reactions == nullptr || is_bot) {
-    return nullptr;
-  }
-
-  auto result = make_unique<MessageReactions>();
-  result->can_get_added_reactions_ = reactions->can_see_list_;
-  result->is_min_ = reactions->min_;
-  result->are_tags_ = reactions->reactions_as_tags_;
-
-  DialogId my_dialog_id;
-  for (auto &peer_reaction : reactions->recent_reactions_) {
-    if (peer_reaction->my_) {
-      DialogId dialog_id(peer_reaction->peer_id_);
-      if (!dialog_id.is_valid()) {
-        continue;
-      }
-      if (my_dialog_id.is_valid() && dialog_id != my_dialog_id) {
-        LOG(ERROR) << "Receive my reactions with " << dialog_id << " and " << my_dialog_id;
-      }
-      my_dialog_id = dialog_id;
-    }
-  }
-
-  FlatHashSet<ReactionType, ReactionTypeHash> reaction_types;
-  vector<std::pair<int32, ReactionType>> chosen_reaction_order;
-  for (auto &reaction_count : reactions->results_) {
-    auto reaction_type = ReactionType(reaction_count->reaction_);
-    if (reaction_count->count_ <= 0 || reaction_count->count_ >= MessageReaction::MAX_CHOOSE_COUNT ||
-        reaction_type.is_empty()) {
-      LOG(ERROR) << "Receive " << reaction_type << " with invalid count " << reaction_count->count_;
-      continue;
-    }
-
-    if (!reaction_types.insert(reaction_type).second) {
-      LOG(ERROR) << "Receive duplicate " << reaction_type;
-      continue;
-    }
-
-    FlatHashSet<DialogId, DialogIdHash> recent_choosers;
-    DialogId my_recent_chooser_dialog_id;
-    vector<DialogId> recent_chooser_dialog_ids;
-    vector<std::pair<ChannelId, MinChannel>> recent_chooser_min_channels;
-    for (auto &peer_reaction : reactions->recent_reactions_) {
-      auto peer_reaction_type = ReactionType(peer_reaction->reaction_);
-      if (peer_reaction_type == reaction_type) {
-        DialogId dialog_id(peer_reaction->peer_id_);
-        if (!dialog_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid " << dialog_id << " as a recent chooser for " << reaction_type;
-          continue;
-        }
-        if (!recent_choosers.insert(dialog_id).second) {
-          LOG(ERROR) << "Receive duplicate " << dialog_id << " as a recent chooser for " << reaction_type;
-          continue;
-        }
-        if (!td->dialog_manager_->have_dialog_info(dialog_id)) {
-          auto dialog_type = dialog_id.get_type();
-          if (dialog_type == DialogType::User) {
-            auto user_id = dialog_id.get_user_id();
-            if (!td->user_manager_->have_min_user(user_id)) {
-              LOG(ERROR) << "Receive unknown " << user_id;
-              continue;
-            }
-          } else if (dialog_type == DialogType::Channel) {
-            auto channel_id = dialog_id.get_channel_id();
-            auto min_channel = td->chat_manager_->get_min_channel(channel_id);
-            if (min_channel == nullptr) {
-              LOG(ERROR) << "Receive unknown reacted " << channel_id;
-              continue;
-            }
-            recent_chooser_min_channels.emplace_back(channel_id, *min_channel);
-          } else {
-            LOG(ERROR) << "Receive unknown reacted " << dialog_id;
-            continue;
-          }
-        }
-
-        recent_chooser_dialog_ids.push_back(dialog_id);
-        if (dialog_id == my_dialog_id) {
-          my_recent_chooser_dialog_id = dialog_id;
-        }
-        if (peer_reaction->unread_) {
-          result->unread_reactions_.emplace_back(std::move(peer_reaction_type), dialog_id, peer_reaction->big_);
-        }
-        if (recent_chooser_dialog_ids.size() == MessageReaction::MAX_RECENT_CHOOSERS) {
-          break;
-        }
-      }
-    }
-
-    bool is_chosen = (reaction_count->flags_ & telegram_api::reactionCount::CHOSEN_ORDER_MASK) != 0;
-    if (is_chosen) {
-      if (reaction_type == ReactionType::paid()) {
-        LOG_IF(ERROR, reaction_count->chosen_order_ != -1)
-            << "Receive paid reaction with order " << reaction_count->chosen_order_;
-      } else {
-        chosen_reaction_order.emplace_back(reaction_count->chosen_order_, reaction_type);
-      }
-    }
-    result->reactions_.push_back({std::move(reaction_type), reaction_count->count_, is_chosen,
-                                  my_recent_chooser_dialog_id, std::move(recent_chooser_dialog_ids),
-                                  std::move(recent_chooser_min_channels)});
-  }
-  if (chosen_reaction_order.size() > 1) {
-    std::sort(chosen_reaction_order.begin(), chosen_reaction_order.end());
-    result->chosen_reaction_order_ =
-        transform(chosen_reaction_order, [](const std::pair<int32, ReactionType> &order) { return order.second; });
-  }
-  bool was_me = false;
-  for (auto &top_reactor : reactions->top_reactors_) {
-    MessageReactor reactor(td, std::move(top_reactor));
-    if (!reactor.is_valid() || (reactions->min_ && reactor.is_me())) {
-      LOG(ERROR) << "Receive " << reactor;
-      continue;
-    }
-    if (reactor.is_me()) {
-      if (was_me) {
-        LOG(ERROR) << "Receive duplicate " << reactor;
-        continue;
-      }
-      was_me = true;
-    }
-    result->top_reactors_.push_back(std::move(reactor));
-  }
-  MessageReactor::fix_message_reactors(result->top_reactors_, true);
-  return result;
-}
-
-MessageReaction *MessageReactions::get_reaction(const ReactionType &reaction_type) {
-  for (auto &added_reaction : reactions_) {
-    if (added_reaction.get_reaction_type() == reaction_type) {
-      return &added_reaction;
-    }
-  }
-  return nullptr;
-}
-
-const MessageReaction *MessageReactions::get_reaction(const ReactionType &reaction_type) const {
-  for (const auto &added_reaction : reactions_) {
-    if (added_reaction.get_reaction_type() == reaction_type) {
-      return &added_reaction;
-    }
-  }
-  return nullptr;
-}
-
-void MessageReactions::update_from(const MessageReactions &old_reactions, DialogId my_dialog_id) {
-  if (is_min_ && !old_reactions.is_min_) {
-    // chosen reactions were known, keep them
-    is_min_ = false;
-    chosen_reaction_order_ = old_reactions.chosen_reaction_order_;
-    for (const auto &old_reaction : old_reactions.reactions_) {
-      if (old_reaction.is_chosen()) {
-        auto *reaction = get_reaction(old_reaction.get_reaction_type());
-        if (reaction != nullptr) {
-          reaction->update_from(old_reaction);
-        }
-      } else {
-        td::remove(chosen_reaction_order_, old_reaction.get_reaction_type());
-      }
-    }
-    unread_reactions_ = old_reactions.unread_reactions_;
-    if (chosen_reaction_order_.size() == 1) {
-      reset_to_empty(chosen_reaction_order_);
-    }
-
-    bool was_me = false;
-    for (auto &reactor : top_reactors_) {
-      if (reactor.fix_is_me(my_dialog_id)) {
-        was_me = true;
-        break;
-      }
-    }
-    if (!was_me) {
-      for (auto &reactor : old_reactions.top_reactors_) {
-        if (reactor.is_me()) {
-          // self paid reaction was known, keep it
-          top_reactors_.push_back(reactor);
-          MessageReactor::fix_message_reactors(top_reactors_, false);
-        }
-      }
-    }
-  }
-  for (const auto &old_reaction : old_reactions.reactions_) {
-    if (old_reaction.is_chosen() &&
-        old_reaction.get_recent_chooser_dialog_ids().size() == MessageReaction::MAX_RECENT_CHOOSERS + 1) {
-      auto *reaction = get_reaction(old_reaction.get_reaction_type());
-      if (reaction != nullptr && reaction->is_chosen()) {
-        reaction->update_recent_chooser_dialog_ids(old_reaction);
-      }
-    }
-  }
-  pending_paid_reactions_ = old_reactions.pending_paid_reactions_;
-  pending_use_default_paid_reaction_type_ = old_reactions.pending_use_default_paid_reaction_type_;
-  pending_paid_reaction_type_ = old_reactions.pending_paid_reaction_type_;
-}
-
-bool MessageReactions::add_my_reaction(const ReactionType &reaction_type, bool is_big, DialogId my_dialog_id,
-                                       bool have_recent_choosers, bool is_tag) {
-  vector<ReactionType> new_chosen_reaction_order = get_chosen_reaction_types();
-
-  auto added_reaction = get_reaction(reaction_type);
-  if (added_reaction == nullptr) {
-    vector<DialogId> recent_chooser_dialog_ids;
-    DialogId my_recent_chooser_dialog_id;
-    if (have_recent_choosers) {
-      recent_chooser_dialog_ids.push_back(my_dialog_id);
-      my_recent_chooser_dialog_id = my_dialog_id;
-    }
-    reactions_.push_back(
-        {reaction_type, 1, true, my_recent_chooser_dialog_id, std::move(recent_chooser_dialog_ids), Auto()});
-    new_chosen_reaction_order.emplace_back(reaction_type);
-  } else if (!added_reaction->is_chosen()) {
-    added_reaction->set_as_chosen(my_dialog_id, have_recent_choosers);
-    new_chosen_reaction_order.emplace_back(reaction_type);
-  } else if (!is_big) {
-    return false;
-  }
-  if (!is_tag) {
-    CHECK(!are_tags_);
-  } else {
-    are_tags_ = true;
-  }
-
-  auto max_reaction_count = get_max_reaction_count();
-  while (new_chosen_reaction_order.size() > max_reaction_count) {
-    auto index = new_chosen_reaction_order[0] == reaction_type ? 1 : 0;
-    CHECK(static_cast<size_t>(index) < new_chosen_reaction_order.size());
-    bool is_removed = do_remove_my_reaction(new_chosen_reaction_order[index]);
-    CHECK(is_removed);
-    new_chosen_reaction_order.erase(new_chosen_reaction_order.begin() + index);
-  }
-
-  if (new_chosen_reaction_order.size() == 1) {
-    new_chosen_reaction_order.clear();
-  }
-  chosen_reaction_order_ = std::move(new_chosen_reaction_order);
-
-  for (auto &message_reaction : reactions_) {
-    message_reaction.set_my_recent_chooser_dialog_id(my_dialog_id);
-  }
-
-  return true;
-}
-
-bool MessageReactions::remove_my_reaction(const ReactionType &reaction_type, DialogId my_dialog_id) {
-  if (do_remove_my_reaction(reaction_type)) {
-    if (!chosen_reaction_order_.empty()) {
-      bool is_removed = td::remove(chosen_reaction_order_, reaction_type);
-      CHECK(is_removed);
-
-      // if the user isn't a Premium user, then max_reaction_count could be reduced from 3 to 1
-      auto max_reaction_count = get_max_reaction_count();
-      while (chosen_reaction_order_.size() > max_reaction_count) {
-        is_removed = do_remove_my_reaction(chosen_reaction_order_[0]);
-        CHECK(is_removed);
-        chosen_reaction_order_.erase(chosen_reaction_order_.begin());
-      }
-
-      if (chosen_reaction_order_.size() <= 1) {
-        reset_to_empty(chosen_reaction_order_);
-      }
-    }
-
-    for (auto &message_reaction : reactions_) {
-      message_reaction.set_my_recent_chooser_dialog_id(my_dialog_id);
-    }
-
-    return true;
-  }
-  return false;
-}
-
-bool MessageReactions::do_remove_my_reaction(const ReactionType &reaction_type) {
-  for (auto it = reactions_.begin(); it != reactions_.end(); ++it) {
-    auto &message_reaction = *it;
-    if (message_reaction.get_reaction_type() == reaction_type) {
-      if (message_reaction.is_chosen()) {
-        message_reaction.unset_as_chosen();
-        if (message_reaction.is_empty()) {
-          it = reactions_.erase(it);
-        }
-        return true;
-      }
-      break;
-    }
-  }
-  return false;
-}
-
-void MessageReactions::add_my_paid_reaction(Td *td, int32 star_count,
-                                            const td_api::object_ptr<td_api::PaidReactionType> &type) {
-  if (pending_paid_reactions_ > 1000000000 || star_count > 1000000000) {
-    LOG(ERROR) << "Pending paid reactions overflown";
-    return;
-  }
-  bool use_default_paid_reaction_type = type == nullptr;
-  PaidReactionType paid_reaction_type(td, type);
-  td->star_manager_->add_pending_owned_star_count(-star_count, false);
-  if (use_default_paid_reaction_type) {
-    if (pending_paid_reactions_ == 0) {
-      pending_use_default_paid_reaction_type_ = true;
-    }
-    if (pending_use_default_paid_reaction_type_) {
-      bool was_me = false;
-      for (auto &reactor : top_reactors_) {
-        if (reactor.is_me()) {
-          was_me = true;
-          pending_paid_reaction_type_ = reactor.get_paid_reaction_type(td->dialog_manager_->get_my_dialog_id());
-        }
-      }
-      if (!was_me) {
-        pending_paid_reaction_type_ = td->reaction_manager_->get_default_paid_reaction_type();
-      }
-    }
-  } else {
-    td->reaction_manager_->on_update_default_paid_reaction_type(paid_reaction_type);
-
-    pending_use_default_paid_reaction_type_ = false;
-    pending_paid_reaction_type_ = paid_reaction_type;
-  }
-  pending_paid_reactions_ += star_count;
-}
-
-bool MessageReactions::has_pending_paid_reactions() const {
-  return pending_paid_reactions_ != 0;
-}
-
-void MessageReactions::drop_pending_paid_reactions(Td *td) {
-  CHECK(has_pending_paid_reactions());
-  td->star_manager_->add_pending_owned_star_count(pending_paid_reactions_, false);
-  pending_paid_reactions_ = 0;
-  pending_use_default_paid_reaction_type_ = false;
-  pending_paid_reaction_type_ = {};
-}
-
-void MessageReactions::sort_reactions(const FlatHashMap<ReactionType, size_t, ReactionTypeHash> &active_reaction_pos) {
-  std::sort(reactions_.begin(), reactions_.end(),
-            [&active_reaction_pos](const MessageReaction &lhs, const MessageReaction &rhs) {
-              if (lhs.get_reaction_type().is_paid_reaction() != rhs.get_reaction_type().is_paid_reaction()) {
-                return lhs.get_reaction_type().is_paid_reaction();
-              }
-              if (lhs.get_choose_count() != rhs.get_choose_count()) {
-                return lhs.get_choose_count() > rhs.get_choose_count();
-              }
-              auto lhs_it = active_reaction_pos.find(lhs.get_reaction_type());
-              auto lhs_pos = lhs_it != active_reaction_pos.end() ? lhs_it->second : active_reaction_pos.size();
-              auto rhs_it = active_reaction_pos.find(rhs.get_reaction_type());
-              auto rhs_pos = rhs_it != active_reaction_pos.end() ? rhs_it->second : active_reaction_pos.size();
-              if (lhs_pos != rhs_pos) {
-                return lhs_pos < rhs_pos;
-              }
-
-              return lhs.get_reaction_type() < rhs.get_reaction_type();
-            });
-}
-
-void MessageReactions::fix_chosen_reaction() {
-  DialogId my_dialog_id;
-  for (auto &reaction : reactions_) {
-    if (!reaction.is_chosen() && reaction.get_my_recent_chooser_dialog_id().is_valid()) {
-      my_dialog_id = reaction.get_my_recent_chooser_dialog_id();
-      LOG(WARNING) << "Fix recent chosen reaction in " << *this;
-      reaction.remove_my_recent_chooser_dialog_id();
-    }
-  }
-  if (!my_dialog_id.is_valid()) {
-    return;
-  }
-  for (auto &reaction : reactions_) {
-    if (!reaction.get_reaction_type().is_paid_reaction() && reaction.is_chosen() &&
-        !reaction.get_my_recent_chooser_dialog_id().is_valid()) {
-      reaction.add_my_recent_chooser_dialog_id(my_dialog_id);
-    }
-  }
-}
-
-void MessageReactions::fix_my_recent_chooser_dialog_id(DialogId my_dialog_id) {
-  for (auto &reaction : reactions_) {
-    if (!reaction.get_reaction_type().is_paid_reaction() && reaction.is_chosen() &&
-        !reaction.get_my_recent_chooser_dialog_id().is_valid() &&
-        td::contains(reaction.get_recent_chooser_dialog_ids(), my_dialog_id)) {
-      reaction.my_recent_chooser_dialog_id_ = my_dialog_id;
-    }
-  }
-}
-
-vector<ReactionType> MessageReactions::get_chosen_reaction_types() const {
-  if (!chosen_reaction_order_.empty()) {
-    return chosen_reaction_order_;
-  }
-
-  vector<ReactionType> reaction_order;
-  for (const auto &reaction : reactions_) {
-    if (!reaction.get_reaction_type().is_paid_reaction() && reaction.is_chosen()) {
-      reaction_order.push_back(reaction.get_reaction_type());
-    }
-  }
-  return reaction_order;
-}
-
-bool MessageReactions::are_consistent_with_list(
-    const ReactionType &reaction_type, FlatHashMap<ReactionType, vector<DialogId>, ReactionTypeHash> reaction_types,
-    int32 total_count) const {
-  auto are_consistent = [](const vector<DialogId> &lhs, const vector<DialogId> &rhs) {
-    size_t i = 0;
-    size_t max_i = td::min(lhs.size(), rhs.size());
-    while (i < max_i && lhs[i] == rhs[i]) {
-      i++;
-    }
-    return i == max_i;
-  };
-
-  if (reaction_type.is_empty()) {
-    // received list and total_count for all reactions
-    int32 old_total_count = 0;
-    for (const auto &message_reaction : reactions_) {
-      CHECK(!message_reaction.get_reaction_type().is_empty());
-      if (!are_consistent(reaction_types[message_reaction.get_reaction_type()],
-                          message_reaction.get_recent_chooser_dialog_ids())) {
-        return false;
-      }
-      old_total_count += message_reaction.get_choose_count();
-      reaction_types.erase(message_reaction.get_reaction_type());
-    }
-    return old_total_count == total_count && reaction_types.empty();
-  }
-
-  // received list and total_count for a single reaction
-  const auto *message_reaction = get_reaction(reaction_type);
-  if (message_reaction == nullptr) {
-    return reaction_types.count(reaction_type) == 0 && total_count == 0;
-  } else {
-    return are_consistent(reaction_types[reaction_type], message_reaction->get_recent_chooser_dialog_ids()) &&
-           message_reaction->get_choose_count() == total_count;
-  }
-}
-
-vector<MessageReactor> MessageReactions::apply_reactor_pending_paid_reactions(DialogId my_dialog_id) const {
-  vector<MessageReactor> top_reactors;
-  bool was_me = false;
-  auto reactor_dialog_id = pending_paid_reaction_type_.get_dialog_id(my_dialog_id);
-  for (auto &reactor : top_reactors_) {
-    top_reactors.push_back(reactor);
-    if (reactor.is_me()) {
-      was_me = true;
-      top_reactors.back().add_count(pending_paid_reactions_, reactor_dialog_id, my_dialog_id);
-    }
-  }
-  if (!was_me) {
-    if (reactor_dialog_id == DialogId()) {
-      // anonymous reaction
-      top_reactors.emplace_back(my_dialog_id, pending_paid_reactions_, true);
-    } else {
-      top_reactors.emplace_back(reactor_dialog_id, pending_paid_reactions_, false);
-    }
-  }
-  MessageReactor::fix_message_reactors(top_reactors, false);
-  return top_reactors;
-}
-
-td_api::object_ptr<td_api::messageReactions> MessageReactions::get_message_reactions_object(Td *td, UserId my_user_id,
-                                                                                            UserId peer_user_id) const {
-  auto reactions = transform(reactions_, [td, my_user_id, peer_user_id](const MessageReaction &reaction) {
-    return reaction.get_message_reaction_object(td, my_user_id, peer_user_id);
-  });
-  auto reactors =
-      transform(top_reactors_, [td](const MessageReactor &reactor) { return reactor.get_paid_reactor_object(td); });
-  if (pending_paid_reactions_ > 0) {
-    if (reactions_.empty() || !reactions_[0].reaction_type_.is_paid_reaction()) {
-      reactions.insert(reactions.begin(),
-                       MessageReaction(ReactionType::paid(), pending_paid_reactions_, true, DialogId(), Auto(), Auto())
-                           .get_message_reaction_object(td, my_user_id, peer_user_id));
-    } else {
-      reactions[0]->total_count_ += pending_paid_reactions_;
-      reactions[0]->is_chosen_ = true;
-    }
-
-    // my_user_id == UserId()
-    auto top_reactors = apply_reactor_pending_paid_reactions(td->dialog_manager_->get_my_dialog_id());
-    reactors =
-        transform(top_reactors, [td](const MessageReactor &reactor) { return reactor.get_paid_reactor_object(td); });
-  }
-  return td_api::make_object<td_api::messageReactions>(std::move(reactions), are_tags_, std::move(reactors),
-                                                       can_get_added_reactions_);
-}
-
-int32 MessageReactions::get_non_paid_reaction_count() const {
-  int32 result = 0;
-  for (const auto &reaction : reactions_) {
-    if (!reaction.reaction_type_.is_paid_reaction()) {
-      result++;
-    }
-  }
-  return result;
-}
-
-void MessageReactions::add_min_channels(Td *td) const {
-  for (const auto &reaction : reactions_) {
-    for (const auto &recent_chooser_min_channel : reaction.get_recent_chooser_min_channels()) {
-      LOG(INFO) << "Add min reacted " << recent_chooser_min_channel.first;
-      td->chat_manager_->add_min_channel(recent_chooser_min_channel.first, recent_chooser_min_channel.second);
-    }
-  }
-  for (const auto &reactor : top_reactors_) {
-    reactor.add_min_channel(td);
-  }
-}
-
-void MessageReactions::add_dependencies(Dependencies &dependencies) const {
-  for (const auto &reaction : reactions_) {
-    const auto &dialog_ids = reaction.get_recent_chooser_dialog_ids();
-    for (auto dialog_id : dialog_ids) {
-      dependencies.add_message_sender_dependencies(dialog_id);
-    }
-  }
-  for (const auto &reactor : top_reactors_) {
-    reactor.add_dependencies(dependencies);
-  }
-}
-
-bool MessageReactions::need_update_message_reactions(const MessageReactions *old_reactions,
-                                                     const MessageReactions *new_reactions) {
-  if (old_reactions == nullptr) {
-    // add reactions
-    return new_reactions != nullptr;
-  }
-  if (new_reactions == nullptr) {
-    // remove reactions when they are disabled
-    return true;
-  }
-
-  // unread_reactions_ and chosen_reaction_order_ are updated independently; compare all other fields
-  return old_reactions->reactions_ != new_reactions->reactions_ || old_reactions->is_min_ != new_reactions->is_min_ ||
-         old_reactions->can_get_added_reactions_ != new_reactions->can_get_added_reactions_ ||
-         old_reactions->need_polling_ != new_reactions->need_polling_ ||
-         old_reactions->are_tags_ != new_reactions->are_tags_ ||
-         old_reactions->top_reactors_ != new_reactions->top_reactors_;
-}
-
-bool MessageReactions::need_update_unread_reactions(const MessageReactions *old_reactions,
-                                                    const MessageReactions *new_reactions) {
-  if (old_reactions == nullptr || old_reactions->unread_reactions_.empty()) {
-    return !(new_reactions == nullptr || new_reactions->unread_reactions_.empty());
-  }
-  return new_reactions == nullptr || old_reactions->unread_reactions_ != new_reactions->unread_reactions_;
-}
-
-void MessageReactions::send_paid_message_reaction(Td *td, MessageFullId message_full_id, int64 random_id,
-                                                  Promise<Unit> &&promise) {
-  CHECK(has_pending_paid_reactions());
-  auto star_count = pending_paid_reactions_;
-  auto use_default_paid_reaction_type = pending_use_default_paid_reaction_type_;
-  auto paid_reaction_type = pending_paid_reaction_type_;
-  top_reactors_ = apply_reactor_pending_paid_reactions(td->dialog_manager_->get_my_dialog_id());
-  if (reactions_.empty() || !reactions_[0].reaction_type_.is_paid_reaction()) {
-    reactions_.insert(reactions_.begin(),
-                      MessageReaction(ReactionType::paid(), star_count, true, DialogId(), Auto(), Auto()));
-  } else {
-    reactions_[0].add_paid_reaction(star_count);
-  }
-  pending_paid_reactions_ = 0;
-  pending_use_default_paid_reaction_type_ = false;
-  pending_paid_reaction_type_ = {};
-
-  td->create_handler<SendPaidReactionQuery>(std::move(promise))
-      ->send(message_full_id, star_count, use_default_paid_reaction_type, paid_reaction_type, random_id);
-}
-
-bool MessageReactions::set_paid_message_reaction_type(Td *td, MessageFullId message_full_id,
-                                                      const td_api::object_ptr<td_api::PaidReactionType> &type,
-                                                      Promise<Unit> &&promise) {
-  auto paid_reaction_type = PaidReactionType(td, type);
-  if (pending_paid_reactions_ != 0) {
-    pending_use_default_paid_reaction_type_ = false;
-    pending_paid_reaction_type_ = paid_reaction_type;
-  }
-  for (auto &top_reactor : top_reactors_) {
-    if (top_reactor.is_me()) {
-      auto my_dialog_id = td->dialog_manager_->get_my_dialog_id();
-      top_reactor.add_count(0, paid_reaction_type.get_dialog_id(my_dialog_id), my_dialog_id);
-      td->reaction_manager_->on_update_default_paid_reaction_type(paid_reaction_type);
-      td->create_handler<TogglePaidReactionPrivacyQuery>(std::move(promise))->send(message_full_id, paid_reaction_type);
-      return true;
-    }
-  }
-  if (pending_paid_reactions_ != 0) {
-    td->reaction_manager_->on_update_default_paid_reaction_type(paid_reaction_type);
-    promise.set_value(Unit());
-    return true;
-  }
-  promise.set_error(Status::Error(400, "Message has no paid reaction"));
-  return false;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageReactions &reactions) {
-  if (reactions.are_tags_) {
-    return string_builder << "MessageTags{" << reactions.reactions_ << '}';
-  }
-  return string_builder << (reactions.is_min_ ? "Min" : "") << "MessageReactions{" << reactions.reactions_
-                        << " with unread " << reactions.unread_reactions_ << ", reaction order "
-                        << reactions.chosen_reaction_order_
-                        << " and can_get_added_reactions = " << reactions.can_get_added_reactions_
-                        << " with paid reactions by " << reactions.top_reactors_ << " and "
-                        << reactions.pending_paid_reactions_ << " pending " << reactions.pending_paid_reaction_type_
-                        << '}';
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<MessageReactions> &reactions) {
-  if (reactions == nullptr) {
-    return string_builder << "null";
-  }
-  return string_builder << *reactions;
-}
-
-void send_message_reaction(Td *td, MessageFullId message_full_id, vector<ReactionType> reaction_types, bool is_big,
-                           bool add_to_recent, Promise<Unit> &&promise) {
-  td->create_handler<SendReactionQuery>(std::move(promise))
-      ->send(message_full_id, std::move(reaction_types), is_big, add_to_recent);
-}
-
-void set_message_reactions(Td *td, MessageFullId message_full_id, vector<ReactionType> reaction_types, bool is_big,
-                           Promise<Unit> &&promise) {
-  if (!td->messages_manager_->have_message_force(message_full_id, "set_message_reactions")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  for (const auto &reaction_type : reaction_types) {
-    if (reaction_type.is_empty() || reaction_type.is_paid_reaction()) {
-      return promise.set_error(Status::Error(400, "Invalid reaction type specified"));
-    }
-  }
-  send_message_reaction(td, message_full_id, std::move(reaction_types), is_big, false, std::move(promise));
-}
-
-void reload_paid_reaction_privacy(Td *td) {
-  td->create_handler<GetPaidReactionPrivacyQuery>()->send();
-}
-
-void get_message_added_reactions(Td *td, MessageFullId message_full_id, ReactionType reaction_type, string offset,
-                                 int32 limit, Promise<td_api::object_ptr<td_api::addedReactions>> &&promise) {
-  if (!td->messages_manager_->have_message_force(message_full_id, "get_message_added_reactions")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (reaction_type.is_paid_reaction()) {
-    return promise.set_error(Status::Error(400, "Can't use the method for paid reaction"));
-  }
-
-  auto message_id = message_full_id.get_message_id();
-  if (message_full_id.get_dialog_id().get_type() == DialogType::SecretChat || !message_id.is_valid() ||
-      !message_id.is_server()) {
-    return promise.set_value(td_api::make_object<td_api::addedReactions>(0, Auto(), string()));
-  }
-
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  static constexpr int32 MAX_GET_ADDED_REACTIONS = 100;  // server side limit
-  if (limit > MAX_GET_ADDED_REACTIONS) {
-    limit = MAX_GET_ADDED_REACTIONS;
-  }
-
-  td->create_handler<GetMessageReactionsListQuery>(std::move(promise))
-      ->send(message_full_id, std::move(reaction_type), std::move(offset), limit);
-}
-
-void report_message_reactions(Td *td, MessageFullId message_full_id, DialogId chooser_dialog_id,
-                              Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_STATUS_PROMISE(promise, td->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                       "report_message_reactions"));
-
-  if (!td->messages_manager_->have_message_force(message_full_id, "report_message_reactions")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  auto message_id = message_full_id.get_message_id();
-  if (message_id.is_valid_scheduled()) {
-    return promise.set_error(Status::Error(400, "Can't report reactions on scheduled messages"));
-  }
-  if (!message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Message reactions can't be reported"));
-  }
-
-  if (!td->dialog_manager_->have_input_peer(chooser_dialog_id, false, AccessRights::Know)) {
-    return promise.set_error(Status::Error(400, "Reaction sender not found"));
-  }
-
-  td->create_handler<ReportReactionQuery>(std::move(promise))->send(dialog_id, message_id, chooser_dialog_id);
-}
-
-vector<ReactionType> get_chosen_tags(const unique_ptr<MessageReactions> &message_reactions) {
-  if (message_reactions == nullptr || !message_reactions->are_tags_) {
-    return {};
-  }
-  return message_reactions->get_chosen_reaction_types();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReaction.h b/third-party/td/td/td/telegram/MessageReaction.h
deleted file mode 100644
index fdf5dfb156..0000000000
--- a/third-party/td/td/td/telegram/MessageReaction.h
+++ /dev/null
@@ -1,257 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageReactor.h"
-#include "td/telegram/MinChannel.h"
-#include "td/telegram/PaidReactionType.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class Dependencies;
-
-class Td;
-
-class MessageReaction {
-  static constexpr int32 MAX_CHOOSE_COUNT = 2147483640;
-
-  static constexpr size_t MAX_RECENT_CHOOSERS = 3;
-
-  ReactionType reaction_type_;
-  int32 choose_count_ = 0;
-  bool is_chosen_ = false;
-  DialogId my_recent_chooser_dialog_id_;
-  vector<DialogId> recent_chooser_dialog_ids_;
-  vector<std::pair<ChannelId, MinChannel>> recent_chooser_min_channels_;
-
-  friend bool operator==(const MessageReaction &lhs, const MessageReaction &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageReaction &message_reaction);
-
-  friend struct MessageReactions;
-
-  MessageReaction(ReactionType reaction_type, int32 choose_count, bool is_chosen, DialogId my_recent_chooser_dialog_id,
-                  vector<DialogId> &&recent_chooser_dialog_ids,
-                  vector<std::pair<ChannelId, MinChannel>> &&recent_chooser_min_channels);
-
-  bool is_empty() const {
-    return choose_count_ <= 0;
-  }
-
-  bool is_chosen() const {
-    return is_chosen_;
-  }
-
-  void set_as_chosen(DialogId my_dialog_id, bool have_recent_choosers);
-
-  void unset_as_chosen();
-
-  void add_paid_reaction(int32 star_count);
-
-  void add_my_recent_chooser_dialog_id(DialogId dialog_id);
-
-  bool remove_my_recent_chooser_dialog_id();
-
-  void update_from(const MessageReaction &old_reaction);
-
-  void update_recent_chooser_dialog_ids(const MessageReaction &old_reaction);
-
-  int32 get_choose_count() const {
-    return choose_count_;
-  }
-
-  void fix_choose_count();
-
-  void set_my_recent_chooser_dialog_id(DialogId my_dialog_id);
-
-  DialogId get_my_recent_chooser_dialog_id() const {
-    return my_recent_chooser_dialog_id_;
-  }
-
-  const vector<DialogId> &get_recent_chooser_dialog_ids() const {
-    return recent_chooser_dialog_ids_;
-  }
-
-  const vector<std::pair<ChannelId, MinChannel>> &get_recent_chooser_min_channels() const {
-    return recent_chooser_min_channels_;
-  }
-
-  td_api::object_ptr<td_api::messageReaction> get_message_reaction_object(Td *td, UserId my_user_id,
-                                                                          UserId peer_user_id) const;
-
- public:
-  MessageReaction() = default;
-
-  const ReactionType &get_reaction_type() const {
-    return reaction_type_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const MessageReaction &lhs, const MessageReaction &rhs);
-
-inline bool operator!=(const MessageReaction &lhs, const MessageReaction &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageReaction &reaction);
-
-class UnreadMessageReaction {
-  ReactionType reaction_type_;
-  DialogId sender_dialog_id_;
-  bool is_big_ = false;
-
-  friend bool operator==(const UnreadMessageReaction &lhs, const UnreadMessageReaction &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const UnreadMessageReaction &message_reaction);
-
- public:
-  UnreadMessageReaction() = default;
-
-  UnreadMessageReaction(ReactionType reaction_type, DialogId sender_dialog_id, bool is_big)
-      : reaction_type_(std::move(reaction_type)), sender_dialog_id_(sender_dialog_id), is_big_(is_big) {
-  }
-
-  td_api::object_ptr<td_api::unreadReaction> get_unread_reaction_object(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const UnreadMessageReaction &lhs, const UnreadMessageReaction &rhs);
-
-inline bool operator!=(const UnreadMessageReaction &lhs, const UnreadMessageReaction &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const UnreadMessageReaction &unread_reaction);
-
-struct MessageReactions {
-  vector<MessageReaction> reactions_;
-  vector<UnreadMessageReaction> unread_reactions_;
-  vector<ReactionType> chosen_reaction_order_;
-  vector<MessageReactor> top_reactors_;
-  int32 pending_paid_reactions_ = 0;
-  PaidReactionType pending_paid_reaction_type_;
-  bool pending_use_default_paid_reaction_type_ = false;
-  bool is_min_ = false;
-  bool need_polling_ = true;
-  bool can_get_added_reactions_ = false;
-  bool are_tags_ = false;
-
-  MessageReactions() = default;
-
-  bool are_empty() const;
-
-  static unique_ptr<MessageReactions> get_message_reactions(
-      Td *td, telegram_api::object_ptr<telegram_api::messageReactions> &&reactions, bool is_bot);
-
-  MessageReaction *get_reaction(const ReactionType &reaction_type);
-
-  const MessageReaction *get_reaction(const ReactionType &reaction_type) const;
-
-  void update_from(const MessageReactions &old_reactions, DialogId my_dialog_id);
-
-  bool add_my_reaction(const ReactionType &reaction_type, bool is_big, DialogId my_dialog_id, bool have_recent_choosers,
-                       bool is_tag);
-
-  bool remove_my_reaction(const ReactionType &reaction_type, DialogId my_dialog_id);
-
-  void add_my_paid_reaction(Td *td, int32 star_count, const td_api::object_ptr<td_api::PaidReactionType> &type);
-
-  bool has_pending_paid_reactions() const;
-
-  void drop_pending_paid_reactions(Td *td);
-
-  void sort_reactions(const FlatHashMap<ReactionType, size_t, ReactionTypeHash> &active_reaction_pos);
-
-  void fix_chosen_reaction();
-
-  void fix_my_recent_chooser_dialog_id(DialogId my_dialog_id);
-
-  vector<ReactionType> get_chosen_reaction_types() const;
-
-  bool are_consistent_with_list(const ReactionType &reaction_type,
-                                FlatHashMap<ReactionType, vector<DialogId>, ReactionTypeHash> reaction_types,
-                                int32 total_count) const;
-
-  td_api::object_ptr<td_api::messageReactions> get_message_reactions_object(Td *td, UserId my_user_id,
-                                                                            UserId peer_user_id) const;
-
-  int32 get_non_paid_reaction_count() const;
-
-  void add_min_channels(Td *td) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  static bool need_update_message_reactions(const MessageReactions *old_reactions,
-                                            const MessageReactions *new_reactions);
-
-  static bool need_update_unread_reactions(const MessageReactions *old_reactions,
-                                           const MessageReactions *new_reactions);
-
-  void send_paid_message_reaction(Td *td, MessageFullId message_full_id, int64 random_id, Promise<Unit> &&promise);
-
-  bool set_paid_message_reaction_type(Td *td, MessageFullId message_full_id,
-                                      const td_api::object_ptr<td_api::PaidReactionType> &type,
-                                      Promise<Unit> &&promise);
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  bool do_remove_my_reaction(const ReactionType &reaction_type);
-
-  vector<MessageReactor> apply_reactor_pending_paid_reactions(DialogId my_dialog_id) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageReactions &reactions);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<MessageReactions> &reactions);
-
-void send_message_reaction(Td *td, MessageFullId message_full_id, vector<ReactionType> reaction_types, bool is_big,
-                           bool add_to_recent, Promise<Unit> &&promise);
-
-void set_message_reactions(Td *td, MessageFullId message_full_id, vector<ReactionType> reaction_types, bool is_big,
-                           Promise<Unit> &&promise);
-
-void reload_paid_reaction_privacy(Td *td);
-
-void get_message_added_reactions(Td *td, MessageFullId message_full_id, ReactionType reaction_type, string offset,
-                                 int32 limit, Promise<td_api::object_ptr<td_api::addedReactions>> &&promise);
-
-void report_message_reactions(Td *td, MessageFullId message_full_id, DialogId chooser_dialog_id,
-                              Promise<Unit> &&promise);
-
-vector<ReactionType> get_chosen_tags(const unique_ptr<MessageReactions> &message_reactions);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReaction.hpp b/third-party/td/td/td/telegram/MessageReaction.hpp
deleted file mode 100644
index b2ed67b59b..0000000000
--- a/third-party/td/td/td/telegram/MessageReaction.hpp
+++ /dev/null
@@ -1,160 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageReaction.h"
-
-#include "td/telegram/MessageReactor.hpp"
-#include "td/telegram/MinChannel.hpp"
-#include "td/telegram/ReactionType.hpp"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MessageReaction::store(StorerT &storer) const {
-  CHECK(!is_empty());
-  bool has_recent_chooser_dialog_ids = !recent_chooser_dialog_ids_.empty();
-  bool has_recent_chooser_min_channels = !recent_chooser_min_channels_.empty();
-  bool has_my_recent_chooser_dialog_id = my_recent_chooser_dialog_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_chosen_);
-  STORE_FLAG(has_recent_chooser_dialog_ids);
-  STORE_FLAG(has_recent_chooser_min_channels);
-  STORE_FLAG(has_my_recent_chooser_dialog_id);
-  END_STORE_FLAGS();
-  td::store(reaction_type_, storer);
-  td::store(choose_count_, storer);
-  if (has_recent_chooser_dialog_ids) {
-    td::store(recent_chooser_dialog_ids_, storer);
-  }
-  if (has_recent_chooser_min_channels) {
-    td::store(recent_chooser_min_channels_, storer);
-  }
-  if (has_my_recent_chooser_dialog_id) {
-    td::store(my_recent_chooser_dialog_id_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageReaction::parse(ParserT &parser) {
-  bool has_recent_chooser_dialog_ids;
-  bool has_recent_chooser_min_channels;
-  bool has_my_recent_chooser_dialog_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_chosen_);
-  PARSE_FLAG(has_recent_chooser_dialog_ids);
-  PARSE_FLAG(has_recent_chooser_min_channels);
-  PARSE_FLAG(has_my_recent_chooser_dialog_id);
-  END_PARSE_FLAGS();
-  td::parse(reaction_type_, parser);
-  td::parse(choose_count_, parser);
-  if (has_recent_chooser_dialog_ids) {
-    td::parse(recent_chooser_dialog_ids_, parser);
-  }
-  if (has_recent_chooser_min_channels) {
-    td::parse(recent_chooser_min_channels_, parser);
-  }
-  if (has_my_recent_chooser_dialog_id) {
-    td::parse(my_recent_chooser_dialog_id_, parser);
-    if (!my_recent_chooser_dialog_id_.is_valid() ||
-        !td::contains(recent_chooser_dialog_ids_, my_recent_chooser_dialog_id_)) {
-      return parser.set_error("Invalid recent reaction chooser");
-    }
-  }
-  fix_choose_count();
-
-  if (is_empty() || reaction_type_.is_empty()) {
-    parser.set_error("Invalid message reaction");
-  }
-}
-
-template <class StorerT>
-void UnreadMessageReaction::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_big_);
-  END_STORE_FLAGS();
-  td::store(reaction_type_, storer);
-  td::store(sender_dialog_id_, storer);
-}
-
-template <class ParserT>
-void UnreadMessageReaction::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_big_);
-  END_PARSE_FLAGS();
-  td::parse(reaction_type_, parser);
-  td::parse(sender_dialog_id_, parser);
-  if (reaction_type_.is_empty()) {
-    parser.set_error("Invalid unread message reaction");
-  }
-}
-
-template <class StorerT>
-void MessageReactions::store(StorerT &storer) const {
-  bool has_reactions = !reactions_.empty();
-  bool has_unread_reactions = !unread_reactions_.empty();
-  bool has_chosen_reaction_order = !chosen_reaction_order_.empty();
-  bool has_top_reactors = !top_reactors_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_min_);
-  STORE_FLAG(need_polling_);
-  STORE_FLAG(can_get_added_reactions_);
-  STORE_FLAG(has_unread_reactions);
-  STORE_FLAG(has_reactions);
-  STORE_FLAG(has_chosen_reaction_order);
-  STORE_FLAG(are_tags_);
-  STORE_FLAG(has_top_reactors);
-  END_STORE_FLAGS();
-  if (has_reactions) {
-    td::store(reactions_, storer);
-  }
-  if (has_unread_reactions) {
-    td::store(unread_reactions_, storer);
-  }
-  if (has_chosen_reaction_order) {
-    td::store(chosen_reaction_order_, storer);
-  }
-  if (has_top_reactors) {
-    td::store(top_reactors_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageReactions::parse(ParserT &parser) {
-  bool has_reactions;
-  bool has_unread_reactions;
-  bool has_chosen_reaction_order;
-  bool has_top_reactors;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_min_);
-  PARSE_FLAG(need_polling_);
-  PARSE_FLAG(can_get_added_reactions_);
-  PARSE_FLAG(has_unread_reactions);
-  PARSE_FLAG(has_reactions);
-  PARSE_FLAG(has_chosen_reaction_order);
-  PARSE_FLAG(are_tags_);
-  PARSE_FLAG(has_top_reactors);
-  END_PARSE_FLAGS();
-  if (has_reactions) {
-    td::parse(reactions_, parser);
-  }
-  if (has_unread_reactions) {
-    td::parse(unread_reactions_, parser);
-  }
-  if (has_chosen_reaction_order) {
-    td::parse(chosen_reaction_order_, parser);
-  }
-  if (has_top_reactors) {
-    td::parse(top_reactors_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReactor.cpp b/third-party/td/td/td/telegram/MessageReactor.cpp
deleted file mode 100644
index 14224a629c..0000000000
--- a/third-party/td/td/td/telegram/MessageReactor.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageReactor.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-#include <algorithm>
-
-namespace td {
-
-MessageReactor::MessageReactor(Td *td, telegram_api::object_ptr<telegram_api::messageReactor> &&reactor)
-    : dialog_id_(reactor->peer_id_ == nullptr ? DialogId() : DialogId(reactor->peer_id_))
-    , count_(reactor->count_)
-    , is_top_(reactor->top_)
-    , is_me_(reactor->my_)
-    , is_anonymous_(reactor->anonymous_) {
-  if (dialog_id_.get_type() == DialogType::Channel && !td->dialog_manager_->have_dialog_info(dialog_id_)) {
-    auto channel_id = dialog_id_.get_channel_id();
-    auto min_channel = td->chat_manager_->get_min_channel(channel_id);
-    if (min_channel == nullptr) {
-      LOG(ERROR) << "Receive unknown reacted " << channel_id;
-    } else {
-      min_channel_ = make_unique<MinChannel>(*min_channel);
-    }
-  }
-}
-
-td_api::object_ptr<td_api::paidReactor> MessageReactor::get_paid_reactor_object(Td *td) const {
-  return td_api::make_object<td_api::paidReactor>(
-      dialog_id_ == DialogId() ? nullptr : get_message_sender_object(td, dialog_id_, "paidReactor"), count_, is_top_,
-      is_me_, is_anonymous_);
-}
-
-void MessageReactor::add_min_channel(Td *td) const {
-  if (min_channel_ != nullptr && dialog_id_.get_type() == DialogType::Channel) {
-    td->chat_manager_->add_min_channel(dialog_id_.get_channel_id(), *min_channel_);
-  }
-}
-
-void MessageReactor::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add_message_sender_dependencies(dialog_id_);
-}
-
-PaidReactionType MessageReactor::get_paid_reaction_type(DialogId my_dialog_id) const {
-  if (is_anonymous_ || !dialog_id_.is_valid()) {
-    return PaidReactionType::legacy(true);
-  }
-  if (dialog_id_ == my_dialog_id) {
-    return PaidReactionType::legacy(false);
-  }
-  return PaidReactionType::dialog(dialog_id_);
-}
-
-bool MessageReactor::fix_is_me(DialogId my_dialog_id) {
-  if (dialog_id_ == my_dialog_id) {
-    is_me_ = true;
-    return true;
-  }
-  return false;
-}
-
-void MessageReactor::fix_message_reactors(vector<MessageReactor> &reactors, bool need_warning) {
-  size_t TOP_REACTOR_COUNT = 3u;
-  if (reactors.size() > TOP_REACTOR_COUNT + 1) {
-    LOG(ERROR) << "Have too many " << reactors;
-    reactors.resize(TOP_REACTOR_COUNT + 1);
-  }
-  if (reactors.size() > TOP_REACTOR_COUNT && !reactors[TOP_REACTOR_COUNT].is_me()) {
-    LOG(ERROR) << "Receive unexpected " << reactors;
-    reactors.resize(TOP_REACTOR_COUNT);
-  }
-  if (need_warning) {
-    for (size_t i = 0; i < reactors.size(); i++) {
-      if (reactors[i].is_top_ != (i < TOP_REACTOR_COUNT)) {
-        LOG(ERROR) << "Receive incorrect top " << reactors;
-        break;
-      }
-    }
-    for (size_t i = 0; i + 1 < reactors.size(); i++) {
-      if (reactors[i].count_ < reactors[i + 1].count_) {
-        LOG(ERROR) << "Receive unordered " << reactors;
-        break;
-      }
-    }
-  }
-  bool was_me = false;
-  for (const auto &reactor : reactors) {
-    CHECK(reactor.is_valid());
-    if (reactor.is_me()) {
-      CHECK(!was_me);
-      was_me = true;
-    }
-  }
-  std::sort(reactors.begin(), reactors.end());
-  if (reactors.size() > TOP_REACTOR_COUNT && !reactors[TOP_REACTOR_COUNT].is_me()) {
-    reactors.resize(TOP_REACTOR_COUNT);
-  }
-  for (size_t i = 0; i < reactors.size(); i++) {
-    reactors[i].is_top_ = (i < TOP_REACTOR_COUNT);
-  }
-}
-
-bool operator<(const MessageReactor &lhs, const MessageReactor &rhs) {
-  if (lhs.count_ != rhs.count_) {
-    return lhs.count_ > rhs.count_;
-  }
-  return lhs.dialog_id_.get() < rhs.dialog_id_.get();
-}
-
-bool operator==(const MessageReactor &lhs, const MessageReactor &rhs) {
-  return lhs.dialog_id_ == rhs.dialog_id_ && lhs.count_ == rhs.count_ && lhs.is_top_ == rhs.is_top_ &&
-         lhs.is_me_ == rhs.is_me_ && lhs.is_anonymous_ == rhs.is_anonymous_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageReactor &reactor) {
-  return string_builder << "PaidReactor[" << reactor.dialog_id_ << " - " << reactor.count_
-                        << (reactor.is_me_ ? " by me" : "") << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReactor.h b/third-party/td/td/td/telegram/MessageReactor.h
deleted file mode 100644
index 9dd5d9cb7e..0000000000
--- a/third-party/td/td/td/telegram/MessageReactor.h
+++ /dev/null
@@ -1,100 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MinChannel.h"
-#include "td/telegram/PaidReactionType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/unique_value_ptr.h"
-
-namespace td {
-
-class Dependencies;
-
-class Td;
-
-class MessageReactor {
-  DialogId dialog_id_;  // self for anonymous reactions by the current user
-  unique_value_ptr<MinChannel> min_channel_;
-  int32 count_ = 0;
-  bool is_top_ = false;
-  bool is_me_ = false;
-  bool is_anonymous_ = false;
-
-  friend bool operator<(const MessageReactor &lhs, const MessageReactor &rhs);
-
-  friend bool operator==(const MessageReactor &lhs, const MessageReactor &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageReactor &reactor);
-
- public:
-  MessageReactor() = default;
-
-  MessageReactor(Td *td, telegram_api::object_ptr<telegram_api::messageReactor> &&reactor);
-
-  MessageReactor(DialogId dialog_id, int32 count, bool is_anonymous)
-      : dialog_id_(dialog_id), count_(count), is_me_(true), is_anonymous_(is_anonymous) {
-  }
-
-  bool is_valid() const {
-    return count_ > 0 && (is_me_ ? dialog_id_.is_valid() : (dialog_id_.is_valid() || is_anonymous_) && is_top_);
-  }
-
-  bool is_me() const {
-    return is_me_;
-  }
-
-  bool is_anonymous() const {
-    return is_anonymous_;
-  }
-
-  PaidReactionType get_paid_reaction_type(DialogId my_dialog_id) const;
-
-  bool fix_is_me(DialogId my_dialog_id);
-
-  void add_count(int32 count, DialogId reactor_dialog_id, DialogId my_dialog_id) {
-    count_ += count;
-    if (reactor_dialog_id == DialogId()) {
-      dialog_id_ = my_dialog_id;
-      is_anonymous_ = true;
-    } else {
-      dialog_id_ = reactor_dialog_id;
-      is_anonymous_ = false;
-    }
-  }
-
-  td_api::object_ptr<td_api::paidReactor> get_paid_reactor_object(Td *td) const;
-
-  void add_min_channel(Td *td) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  static void fix_message_reactors(vector<MessageReactor> &reactors, bool need_warning);
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator<(const MessageReactor &lhs, const MessageReactor &rhs);
-
-bool operator==(const MessageReactor &lhs, const MessageReactor &rhs);
-
-inline bool operator!=(const MessageReactor &lhs, const MessageReactor &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageReactor &reactor);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReactor.hpp b/third-party/td/td/td/telegram/MessageReactor.hpp
deleted file mode 100644
index baef55924e..0000000000
--- a/third-party/td/td/td/telegram/MessageReactor.hpp
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageReactor.h"
-#include "td/telegram/MinChannel.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MessageReactor::store(StorerT &storer) const {
-  bool has_dialog_id = dialog_id_.is_valid();
-  bool has_min_channel = min_channel_ != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_top_);
-  STORE_FLAG(is_me_);
-  STORE_FLAG(is_anonymous_);
-  STORE_FLAG(has_dialog_id);
-  STORE_FLAG(has_min_channel);
-  END_STORE_FLAGS();
-  if (has_dialog_id) {
-    td::store(dialog_id_, storer);
-  }
-  td::store(count_, storer);
-  if (has_min_channel) {
-    td::store(min_channel_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageReactor::parse(ParserT &parser) {
-  bool has_dialog_id;
-  bool has_min_channel;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_top_);
-  PARSE_FLAG(is_me_);
-  PARSE_FLAG(is_anonymous_);
-  PARSE_FLAG(has_dialog_id);
-  PARSE_FLAG(has_min_channel);
-  END_PARSE_FLAGS();
-  if (has_dialog_id) {
-    td::parse(dialog_id_, parser);
-  }
-  td::parse(count_, parser);
-  if (has_min_channel) {
-    td::parse(min_channel_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReplyHeader.cpp b/third-party/td/td/td/telegram/MessageReplyHeader.cpp
deleted file mode 100644
index a18da56cf7..0000000000
--- a/third-party/td/td/td/telegram/MessageReplyHeader.cpp
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageReplyHeader.h"
-
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StoryId.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-MessageReplyHeader::MessageReplyHeader(Td *td, tl_object_ptr<telegram_api::MessageReplyHeader> &&reply_header_ptr,
-                                       DialogId dialog_id, MessageId message_id, int32 date, bool can_have_thread) {
-  if (reply_header_ptr == nullptr) {
-    return;
-  }
-  if (reply_header_ptr->get_id() == telegram_api::messageReplyStoryHeader::ID) {
-    auto reply_header = telegram_api::move_object_as<telegram_api::messageReplyStoryHeader>(reply_header_ptr);
-    DialogId story_dialog_id(reply_header->peer_);
-    StoryId story_id(reply_header->story_id_);
-    if (!story_dialog_id.is_valid() || !story_id.is_server()) {
-      LOG(ERROR) << "Receive " << to_string(reply_header);
-    } else {
-      story_full_id_ = {story_dialog_id, story_id};
-    }
-    return;
-  }
-  CHECK(reply_header_ptr->get_id() == telegram_api::messageReplyHeader::ID);
-  auto reply_header = telegram_api::move_object_as<telegram_api::messageReplyHeader>(reply_header_ptr);
-
-  if (!message_id.is_scheduled() && can_have_thread) {
-    if ((reply_header->flags_ & telegram_api::messageReplyHeader::REPLY_TO_TOP_ID_MASK) != 0) {
-      top_thread_message_id_ = MessageId(ServerMessageId(reply_header->reply_to_top_id_));
-      if (!top_thread_message_id_.is_valid()) {
-        LOG(ERROR) << "Receive " << to_string(reply_header);
-        top_thread_message_id_ = MessageId();
-      }
-    }
-    is_topic_message_ = reply_header->forum_topic_;
-  }
-
-  replied_message_info_ = RepliedMessageInfo(td, std::move(reply_header), dialog_id, message_id, date);
-
-  if (!message_id.is_scheduled() && can_have_thread) {
-    if (!top_thread_message_id_.is_valid()) {
-      auto same_chat_reply_to_message_id = replied_message_info_.get_same_chat_reply_to_message_id(false);
-      if (same_chat_reply_to_message_id.is_valid()) {
-        CHECK(same_chat_reply_to_message_id.is_server());
-        top_thread_message_id_ = same_chat_reply_to_message_id;
-      } else {
-        is_topic_message_ = false;
-      }
-    }
-    if (top_thread_message_id_ >= message_id) {
-      LOG(ERROR) << "Receive top thread " << top_thread_message_id_ << " in " << message_id << " in " << dialog_id;
-      top_thread_message_id_ = MessageId();
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReplyHeader.h b/third-party/td/td/td/telegram/MessageReplyHeader.h
deleted file mode 100644
index 58e2f9dcb4..0000000000
--- a/third-party/td/td/td/telegram/MessageReplyHeader.h
+++ /dev/null
@@ -1,37 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/RepliedMessageInfo.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Td;
-
-struct MessageReplyHeader {
-  RepliedMessageInfo replied_message_info_;
-
-  MessageId top_thread_message_id_;
-  bool is_topic_message_ = false;
-
-  // or
-
-  StoryFullId story_full_id_;
-
-  MessageReplyHeader() = default;
-
-  MessageReplyHeader(Td *td, tl_object_ptr<telegram_api::MessageReplyHeader> &&reply_header_ptr, DialogId dialog_id,
-                     MessageId message_id, int32 date, bool can_have_thread);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReplyInfo.cpp b/third-party/td/td/td/telegram/MessageReplyInfo.cpp
deleted file mode 100644
index a550069bc6..0000000000
--- a/third-party/td/td/td/telegram/MessageReplyInfo.cpp
+++ /dev/null
@@ -1,235 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageReplyInfo.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-MessageReplyInfo::MessageReplyInfo(Td *td, tl_object_ptr<telegram_api::messageReplies> &&reply_info, bool is_bot) {
-  if (reply_info == nullptr) {
-    return;
-  }
-  if (reply_info->replies_ < 0) {
-    LOG(ERROR) << "Receive wrong " << to_string(reply_info);
-    return;
-  }
-  if (is_bot || reply_info->channel_id_ == 777) {
-    is_dropped_ = true;
-    return;
-  }
-  reply_count_ = reply_info->replies_;
-  pts_ = reply_info->replies_pts_;
-
-  is_comment_ = reply_info->comments_;
-
-  if (is_comment_) {
-    channel_id_ = ChannelId(reply_info->channel_id_);
-    if (!channel_id_.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << channel_id_;
-      channel_id_ = ChannelId();
-      is_comment_ = false;
-    }
-  }
-
-  if (is_comment_) {
-    for (const auto &peer : reply_info->recent_repliers_) {
-      DialogId dialog_id(peer);
-      if (!dialog_id.is_valid()) {
-        LOG(ERROR) << "Receive " << dialog_id << " as a recent replier";
-        continue;
-      }
-      if (td::contains(recent_replier_dialog_ids_, dialog_id)) {
-        LOG(ERROR) << "Receive duplicate " << dialog_id << " as a recent replier";
-        continue;
-      }
-      if (!td->dialog_manager_->have_dialog_info(dialog_id)) {
-        auto dialog_type = dialog_id.get_type();
-        if (dialog_type == DialogType::User) {
-          auto replier_user_id = dialog_id.get_user_id();
-          if (!td->user_manager_->have_min_user(replier_user_id)) {
-            LOG(ERROR) << "Receive unknown replied " << replier_user_id;
-            continue;
-          }
-        } else if (dialog_type == DialogType::Channel) {
-          auto replier_channel_id = dialog_id.get_channel_id();
-          auto min_channel = td->chat_manager_->get_min_channel(replier_channel_id);
-          if (min_channel == nullptr) {
-            LOG(ERROR) << "Receive unknown replied " << replier_channel_id;
-            continue;
-          }
-          replier_min_channels_.emplace_back(replier_channel_id, *min_channel);
-        } else {
-          LOG(ERROR) << "Receive unknown replied " << dialog_id;
-          continue;
-        }
-      }
-      recent_replier_dialog_ids_.push_back(dialog_id);
-      if (recent_replier_dialog_ids_.size() == MAX_RECENT_REPLIERS) {
-        break;
-      }
-    }
-  }
-  if ((reply_info->flags_ & telegram_api::messageReplies::MAX_ID_MASK) != 0 &&
-      ServerMessageId(reply_info->max_id_).is_valid()) {
-    max_message_id_ = MessageId(ServerMessageId(reply_info->max_id_));
-  }
-  if ((reply_info->flags_ & telegram_api::messageReplies::READ_MAX_ID_MASK) != 0 &&
-      ServerMessageId(reply_info->read_max_id_).is_valid()) {
-    last_read_inbox_message_id_ = MessageId(ServerMessageId(reply_info->read_max_id_));
-  }
-  if (last_read_inbox_message_id_ > max_message_id_) {  // possible if last thread message was deleted after it was read
-    max_message_id_ = last_read_inbox_message_id_;
-  }
-  LOG(DEBUG) << "Parsed " << oneline(to_string(reply_info)) << " to " << *this;
-}
-
-bool MessageReplyInfo::need_update_to(const MessageReplyInfo &other) const {
-  if (other.is_empty() && !is_empty()) {
-    // ignore updates to empty reply info, because we will hide the info ourselves
-    // return true;
-  }
-  if (other.is_comment_ != is_comment_ && !other.was_dropped()) {
-    LOG(ERROR) << "Reply info has changed from " << *this << " to " << other;
-    return true;
-  }
-  if (other.pts_ < pts_ && !other.was_dropped()) {
-    return false;
-  }
-  return reply_count_ != other.reply_count_ || recent_replier_dialog_ids_ != other.recent_replier_dialog_ids_ ||
-         replier_min_channels_.size() != other.replier_min_channels_.size() || is_comment_ != other.is_comment_ ||
-         channel_id_ != other.channel_id_;
-}
-
-bool MessageReplyInfo::update_max_message_ids(const MessageReplyInfo &other) {
-  return update_max_message_ids(other.max_message_id_, other.last_read_inbox_message_id_,
-                                other.last_read_outbox_message_id_);
-}
-
-bool MessageReplyInfo::update_max_message_ids(MessageId other_max_message_id,
-                                              MessageId other_last_read_inbox_message_id,
-                                              MessageId other_last_read_outbox_message_id) {
-  bool result = false;
-  if (other_last_read_inbox_message_id > last_read_inbox_message_id_) {
-    last_read_inbox_message_id_ = other_last_read_inbox_message_id;
-    result = true;
-  }
-  if (other_last_read_outbox_message_id > last_read_outbox_message_id_) {
-    last_read_outbox_message_id_ = other_last_read_outbox_message_id;
-    result = true;
-  }
-  if (other_max_message_id.is_valid() ||
-      (!other_last_read_inbox_message_id.is_valid() && !other_last_read_outbox_message_id.is_valid())) {
-    if (other_max_message_id < last_read_inbox_message_id_) {
-      other_max_message_id = last_read_inbox_message_id_;
-    }
-    if (other_max_message_id < last_read_outbox_message_id_) {
-      other_max_message_id = last_read_outbox_message_id_;
-    }
-    if (other_max_message_id != max_message_id_) {
-      max_message_id_ = other_max_message_id;
-      result = true;
-    }
-  }
-  return result;
-}
-
-bool MessageReplyInfo::add_reply(DialogId replier_dialog_id, MessageId reply_message_id, int diff) {
-  CHECK(!is_empty());
-  CHECK(diff == +1 || diff == -1);
-
-  if (diff == -1 && reply_count_ == 0) {
-    return false;
-  }
-
-  reply_count_ += diff;
-  if (is_comment_ && replier_dialog_id.is_valid()) {
-    if (replier_dialog_id.get_type() == DialogType::Channel) {
-      // the replier_dialog_id is never min, because it is the sender of a message
-      for (auto it = replier_min_channels_.begin(); it != replier_min_channels_.end(); ++it) {
-        if (it->first == replier_dialog_id.get_channel_id()) {
-          replier_min_channels_.erase(it);
-          break;
-        }
-      }
-    }
-
-    if (diff > 0) {
-      add_to_top(recent_replier_dialog_ids_, MAX_RECENT_REPLIERS, replier_dialog_id);
-    } else {
-      td::remove(recent_replier_dialog_ids_, replier_dialog_id);
-      auto max_repliers = static_cast<size_t>(reply_count_);
-      if (recent_replier_dialog_ids_.size() > max_repliers) {
-        recent_replier_dialog_ids_.resize(max_repliers);
-      }
-    }
-  }
-
-  if (diff > 0 && reply_message_id > max_message_id_) {
-    max_message_id_ = reply_message_id;
-  }
-  return true;
-}
-
-bool MessageReplyInfo::need_reget(const Td *td) const {
-  for (auto &dialog_id : recent_replier_dialog_ids_) {
-    if (dialog_id.get_type() != DialogType::User && !td->dialog_manager_->have_dialog_info(dialog_id)) {
-      if (dialog_id.get_type() == DialogType::Channel &&
-          td->chat_manager_->have_min_channel(dialog_id.get_channel_id())) {
-        return false;
-      }
-      LOG(INFO) << "Reget a message because of replied " << dialog_id;
-      return true;
-    }
-  }
-  return false;
-}
-
-td_api::object_ptr<td_api::messageReplyInfo> MessageReplyInfo::get_message_reply_info_object(
-    Td *td, MessageId dialog_last_read_inbox_message_id) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-
-  vector<td_api::object_ptr<td_api::MessageSender>> recent_repliers;
-  for (auto dialog_id : recent_replier_dialog_ids_) {
-    auto recent_replier = get_min_message_sender_object(td, dialog_id, "get_message_reply_info_object");
-    if (recent_replier != nullptr) {
-      recent_repliers.push_back(std::move(recent_replier));
-    }
-  }
-  auto last_read_inbox_message_id = last_read_inbox_message_id_;
-  if (last_read_inbox_message_id.is_valid() && last_read_inbox_message_id < dialog_last_read_inbox_message_id) {
-    last_read_inbox_message_id = min(dialog_last_read_inbox_message_id, max_message_id_);
-  }
-  return td_api::make_object<td_api::messageReplyInfo>(reply_count_, std::move(recent_repliers),
-                                                       last_read_inbox_message_id.get(),
-                                                       last_read_outbox_message_id_.get(), max_message_id_.get());
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageReplyInfo &reply_info) {
-  if (reply_info.is_comment_) {
-    return string_builder << reply_info.reply_count_ << " comments in " << reply_info.channel_id_ << " by "
-                          << reply_info.recent_replier_dialog_ids_ << " read up to "
-                          << reply_info.last_read_inbox_message_id_ << '/' << reply_info.last_read_outbox_message_id_
-                          << " with PTS " << reply_info.pts_;
-  } else {
-    return string_builder << reply_info.reply_count_ << " replies read up to " << reply_info.last_read_inbox_message_id_
-                          << "/" << reply_info.last_read_outbox_message_id_ << " with PTS " << reply_info.pts_;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReplyInfo.h b/third-party/td/td/td/telegram/MessageReplyInfo.h
deleted file mode 100644
index 7074428b42..0000000000
--- a/third-party/td/td/td/telegram/MessageReplyInfo.h
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MinChannel.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class Td;
-
-struct MessageReplyInfo {
-  int32 reply_count_ = -1;
-  int32 pts_ = -1;
-  vector<DialogId> recent_replier_dialog_ids_;                     // comments only
-  vector<std::pair<ChannelId, MinChannel>> replier_min_channels_;  // comments only
-  ChannelId channel_id_;                                           // comments only
-  MessageId max_message_id_;
-  MessageId last_read_inbox_message_id_;
-  MessageId last_read_outbox_message_id_;
-  bool is_comment_ = false;
-  bool is_dropped_ = false;
-
-  static constexpr size_t MAX_RECENT_REPLIERS = 3;
-
-  MessageReplyInfo() = default;
-
-  MessageReplyInfo(Td *td, tl_object_ptr<telegram_api::messageReplies> &&reply_info, bool is_bot);
-
-  bool is_empty() const {
-    return reply_count_ < 0;
-  }
-
-  bool was_dropped() const {
-    return is_dropped_;
-  }
-
-  bool need_update_to(const MessageReplyInfo &other) const;
-
-  bool update_max_message_ids(MessageId other_max_message_id, MessageId other_last_read_inbox_message_id,
-                              MessageId other_last_read_outbox_message_id);
-
-  bool update_max_message_ids(const MessageReplyInfo &other);
-
-  bool add_reply(DialogId replier_dialog_id, MessageId reply_message_id, int diff);
-
-  bool need_reget(const Td *td) const;
-
-  td_api::object_ptr<td_api::messageReplyInfo> get_message_reply_info_object(
-      Td *td, MessageId dialog_last_read_inbox_message_id) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageReplyInfo &reply_info);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageReplyInfo.hpp b/third-party/td/td/td/telegram/MessageReplyInfo.hpp
deleted file mode 100644
index 22256293bf..0000000000
--- a/third-party/td/td/td/telegram/MessageReplyInfo.hpp
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageReplyInfo.h"
-#include "td/telegram/MinChannel.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void MessageReplyInfo::store(StorerT &storer) const {
-  CHECK(!is_empty());
-  bool has_recent_replier_dialog_ids = !recent_replier_dialog_ids_.empty();
-  bool has_channel_id = channel_id_.is_valid();
-  bool has_max_message_id = max_message_id_.is_valid();
-  bool has_last_read_inbox_message_id = last_read_inbox_message_id_.is_valid();
-  bool has_last_read_outbox_message_id = last_read_outbox_message_id_.is_valid();
-  bool has_replier_min_channels = !replier_min_channels_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_comment_);
-  STORE_FLAG(has_recent_replier_dialog_ids);
-  STORE_FLAG(has_channel_id);
-  STORE_FLAG(has_max_message_id);
-  STORE_FLAG(has_last_read_inbox_message_id);
-  STORE_FLAG(has_last_read_outbox_message_id);
-  STORE_FLAG(has_replier_min_channels);
-  END_STORE_FLAGS();
-  td::store(reply_count_, storer);
-  td::store(pts_, storer);
-  if (has_recent_replier_dialog_ids) {
-    td::store(recent_replier_dialog_ids_, storer);
-  }
-  if (has_channel_id) {
-    td::store(channel_id_, storer);
-  }
-  if (has_max_message_id) {
-    td::store(max_message_id_, storer);
-  }
-  if (has_last_read_inbox_message_id) {
-    td::store(last_read_inbox_message_id_, storer);
-  }
-  if (has_last_read_outbox_message_id) {
-    td::store(last_read_outbox_message_id_, storer);
-  }
-  if (has_replier_min_channels) {
-    td::store(replier_min_channels_, storer);
-  }
-}
-
-template <class ParserT>
-void MessageReplyInfo::parse(ParserT &parser) {
-  bool has_recent_replier_dialog_ids;
-  bool has_channel_id;
-  bool has_max_message_id;
-  bool has_last_read_inbox_message_id;
-  bool has_last_read_outbox_message_id;
-  bool has_replier_min_channels;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_comment_);
-  PARSE_FLAG(has_recent_replier_dialog_ids);
-  PARSE_FLAG(has_channel_id);
-  PARSE_FLAG(has_max_message_id);
-  PARSE_FLAG(has_last_read_inbox_message_id);
-  PARSE_FLAG(has_last_read_outbox_message_id);
-  PARSE_FLAG(has_replier_min_channels);
-  END_PARSE_FLAGS();
-  td::parse(reply_count_, parser);
-  td::parse(pts_, parser);
-  if (has_recent_replier_dialog_ids) {
-    td::parse(recent_replier_dialog_ids_, parser);
-  }
-  if (has_channel_id) {
-    td::parse(channel_id_, parser);
-  }
-  if (has_max_message_id) {
-    td::parse(max_message_id_, parser);
-  }
-  if (has_last_read_inbox_message_id) {
-    td::parse(last_read_inbox_message_id_, parser);
-  }
-  if (has_last_read_outbox_message_id) {
-    td::parse(last_read_outbox_message_id_, parser);
-  }
-  if (has_replier_min_channels) {
-    td::parse(replier_min_channels_, parser);
-  }
-
-  if (channel_id_.get() == 777) {
-    *this = MessageReplyInfo();
-    is_dropped_ = true;
-  }
-  if (recent_replier_dialog_ids_.size() > MAX_RECENT_REPLIERS) {
-    recent_replier_dialog_ids_.resize(MAX_RECENT_REPLIERS);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSearchFilter.cpp b/third-party/td/td/td/telegram/MessageSearchFilter.cpp
deleted file mode 100644
index 382305c2c1..0000000000
--- a/third-party/td/td/td/telegram/MessageSearchFilter.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageSearchFilter.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-tl_object_ptr<telegram_api::MessagesFilter> get_input_messages_filter(MessageSearchFilter filter) {
-  switch (filter) {
-    case MessageSearchFilter::Empty:
-      return make_tl_object<telegram_api::inputMessagesFilterEmpty>();
-    case MessageSearchFilter::Animation:
-      return make_tl_object<telegram_api::inputMessagesFilterGif>();
-    case MessageSearchFilter::Audio:
-      return make_tl_object<telegram_api::inputMessagesFilterMusic>();
-    case MessageSearchFilter::Document:
-      return make_tl_object<telegram_api::inputMessagesFilterDocument>();
-    case MessageSearchFilter::Photo:
-      return make_tl_object<telegram_api::inputMessagesFilterPhotos>();
-    case MessageSearchFilter::Video:
-      return make_tl_object<telegram_api::inputMessagesFilterVideo>();
-    case MessageSearchFilter::VoiceNote:
-      return make_tl_object<telegram_api::inputMessagesFilterVoice>();
-    case MessageSearchFilter::PhotoAndVideo:
-      return make_tl_object<telegram_api::inputMessagesFilterPhotoVideo>();
-    case MessageSearchFilter::Url:
-      return make_tl_object<telegram_api::inputMessagesFilterUrl>();
-    case MessageSearchFilter::ChatPhoto:
-      return make_tl_object<telegram_api::inputMessagesFilterChatPhotos>();
-    case MessageSearchFilter::Call:
-      return make_tl_object<telegram_api::inputMessagesFilterPhoneCalls>(0, false);
-    case MessageSearchFilter::MissedCall:
-      return make_tl_object<telegram_api::inputMessagesFilterPhoneCalls>(0, true);
-    case MessageSearchFilter::VideoNote:
-      return make_tl_object<telegram_api::inputMessagesFilterRoundVideo>();
-    case MessageSearchFilter::VoiceAndVideoNote:
-      return make_tl_object<telegram_api::inputMessagesFilterRoundVoice>();
-    case MessageSearchFilter::Mention:
-      return make_tl_object<telegram_api::inputMessagesFilterMyMentions>();
-    case MessageSearchFilter::Pinned:
-      return make_tl_object<telegram_api::inputMessagesFilterPinned>();
-    case MessageSearchFilter::UnreadMention:
-    case MessageSearchFilter::FailedToSend:
-    case MessageSearchFilter::UnreadReaction:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-MessageSearchFilter get_message_search_filter(const tl_object_ptr<td_api::SearchMessagesFilter> &filter) {
-  if (filter == nullptr) {
-    return MessageSearchFilter::Empty;
-  }
-  switch (filter->get_id()) {
-    case td_api::searchMessagesFilterEmpty::ID:
-      return MessageSearchFilter::Empty;
-    case td_api::searchMessagesFilterAnimation::ID:
-      return MessageSearchFilter::Animation;
-    case td_api::searchMessagesFilterAudio::ID:
-      return MessageSearchFilter::Audio;
-    case td_api::searchMessagesFilterDocument::ID:
-      return MessageSearchFilter::Document;
-    case td_api::searchMessagesFilterPhoto::ID:
-      return MessageSearchFilter::Photo;
-    case td_api::searchMessagesFilterVideo::ID:
-      return MessageSearchFilter::Video;
-    case td_api::searchMessagesFilterVoiceNote::ID:
-      return MessageSearchFilter::VoiceNote;
-    case td_api::searchMessagesFilterPhotoAndVideo::ID:
-      return MessageSearchFilter::PhotoAndVideo;
-    case td_api::searchMessagesFilterUrl::ID:
-      return MessageSearchFilter::Url;
-    case td_api::searchMessagesFilterChatPhoto::ID:
-      return MessageSearchFilter::ChatPhoto;
-    case td_api::searchMessagesFilterVideoNote::ID:
-      return MessageSearchFilter::VideoNote;
-    case td_api::searchMessagesFilterVoiceAndVideoNote::ID:
-      return MessageSearchFilter::VoiceAndVideoNote;
-    case td_api::searchMessagesFilterMention::ID:
-      return MessageSearchFilter::Mention;
-    case td_api::searchMessagesFilterUnreadMention::ID:
-      return MessageSearchFilter::UnreadMention;
-    case td_api::searchMessagesFilterFailedToSend::ID:
-      return MessageSearchFilter::FailedToSend;
-    case td_api::searchMessagesFilterPinned::ID:
-      return MessageSearchFilter::Pinned;
-    case td_api::searchMessagesFilterUnreadReaction::ID:
-      return MessageSearchFilter::UnreadReaction;
-    default:
-      UNREACHABLE();
-      return MessageSearchFilter::Empty;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, MessageSearchFilter filter) {
-  switch (filter) {
-    case MessageSearchFilter::Empty:
-      return string_builder << "Empty";
-    case MessageSearchFilter::Animation:
-      return string_builder << "Animation";
-    case MessageSearchFilter::Audio:
-      return string_builder << "Audio";
-    case MessageSearchFilter::Document:
-      return string_builder << "Document";
-    case MessageSearchFilter::Photo:
-      return string_builder << "Photo";
-    case MessageSearchFilter::Video:
-      return string_builder << "Video";
-    case MessageSearchFilter::VoiceNote:
-      return string_builder << "VoiceNote";
-    case MessageSearchFilter::PhotoAndVideo:
-      return string_builder << "PhotoAndVideo";
-    case MessageSearchFilter::Url:
-      return string_builder << "Url";
-    case MessageSearchFilter::ChatPhoto:
-      return string_builder << "ChatPhoto";
-    case MessageSearchFilter::Call:
-      return string_builder << "Call";
-    case MessageSearchFilter::MissedCall:
-      return string_builder << "MissedCall";
-    case MessageSearchFilter::VideoNote:
-      return string_builder << "VideoNote";
-    case MessageSearchFilter::VoiceAndVideoNote:
-      return string_builder << "VoiceAndVideoNote";
-    case MessageSearchFilter::Mention:
-      return string_builder << "Mention";
-    case MessageSearchFilter::UnreadMention:
-      return string_builder << "UnreadMention";
-    case MessageSearchFilter::FailedToSend:
-      return string_builder << "FailedToSend";
-    case MessageSearchFilter::Pinned:
-      return string_builder << "Pinned";
-    case MessageSearchFilter::UnreadReaction:
-      return string_builder << "UnreadReaction";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSearchFilter.h b/third-party/td/td/td/telegram/MessageSearchFilter.h
deleted file mode 100644
index 4ab10fdbc5..0000000000
--- a/third-party/td/td/td/telegram/MessageSearchFilter.h
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-// append only before Size
-enum class MessageSearchFilter : int32 {
-  Empty,
-  Animation,
-  Audio,
-  Document,
-  Photo,
-  Video,
-  VoiceNote,
-  PhotoAndVideo,
-  Url,
-  ChatPhoto,
-  Call,
-  MissedCall,
-  VideoNote,
-  VoiceAndVideoNote,
-  Mention,
-  UnreadMention,
-  FailedToSend,
-  Pinned,
-  UnreadReaction,
-  Size
-};
-
-inline constexpr size_t message_search_filter_count() {
-  return static_cast<int32>(MessageSearchFilter::Size) - 1;
-}
-
-inline int32 message_search_filter_index(MessageSearchFilter filter) {
-  CHECK(filter != MessageSearchFilter::Empty);
-  return static_cast<int32>(filter) - 1;
-}
-
-inline int32 message_search_filter_index_mask(MessageSearchFilter filter) {
-  if (filter == MessageSearchFilter::Empty) {
-    return 0;
-  }
-  return 1 << message_search_filter_index(filter);
-}
-
-inline int32 call_message_search_filter_index(MessageSearchFilter filter) {
-  CHECK(filter == MessageSearchFilter::Call || filter == MessageSearchFilter::MissedCall);
-  return static_cast<int32>(filter) - static_cast<int32>(MessageSearchFilter::Call);
-}
-
-tl_object_ptr<telegram_api::MessagesFilter> get_input_messages_filter(MessageSearchFilter filter);
-
-MessageSearchFilter get_message_search_filter(const tl_object_ptr<td_api::SearchMessagesFilter> &filter);
-
-StringBuilder &operator<<(StringBuilder &string_builder, MessageSearchFilter filter);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSearchOffset.cpp b/third-party/td/td/td/telegram/MessageSearchOffset.cpp
deleted file mode 100644
index c276e94a47..0000000000
--- a/third-party/td/td/td/telegram/MessageSearchOffset.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageSearchOffset.h"
-
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/ServerMessageId.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-
-#include <limits>
-
-namespace td {
-
-void MessageSearchOffset::update_from_message(const telegram_api::object_ptr<telegram_api::Message> &message) {
-  auto message_date = MessagesManager::get_message_date(message);
-  auto message_id = MessageId::get_message_id(message, false);
-  auto dialog_id = DialogId::get_message_dialog_id(message);
-  if (message_date > 0 && message_id.is_valid() && dialog_id.is_valid()) {
-    date_ = message_date;
-    message_id_ = message_id;
-    dialog_id_ = dialog_id;
-  }
-}
-
-string MessageSearchOffset::to_string() const {
-  return PSTRING() << date_ << ',' << dialog_id_.get() << ',' << message_id_.get_server_message_id().get();
-}
-
-Result<MessageSearchOffset> MessageSearchOffset::from_string(const string &offset) {
-  MessageSearchOffset result;
-  result.date_ = std::numeric_limits<int32>::max();
-  bool is_offset_valid = [&] {
-    if (offset.empty()) {
-      return true;
-    }
-
-    auto parts = full_split(offset, ',');
-    if (parts.size() != 3) {
-      return false;
-    }
-    auto r_offset_date = to_integer_safe<int32>(parts[0]);
-    auto r_offset_dialog_id = to_integer_safe<int64>(parts[1]);
-    auto r_offset_message_id = to_integer_safe<int32>(parts[2]);
-    if (r_offset_date.is_error() || r_offset_message_id.is_error() || r_offset_dialog_id.is_error()) {
-      return false;
-    }
-    result.date_ = r_offset_date.ok();
-    result.message_id_ = MessageId(ServerMessageId(r_offset_message_id.ok()));
-    result.dialog_id_ = DialogId(r_offset_dialog_id.ok());
-    if (result.date_ <= 0 || !result.message_id_.is_valid() || !result.dialog_id_.is_valid() ||
-        DialogManager::get_input_peer_force(result.dialog_id_)->get_id() == telegram_api::inputPeerEmpty::ID) {
-      return false;
-    }
-    return true;
-  }();
-  if (!is_offset_valid) {
-    return Status::Error(400, "Invalid offset specified");
-  }
-  return std::move(result);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSearchOffset.h b/third-party/td/td/td/telegram/MessageSearchOffset.h
deleted file mode 100644
index 8889ed51aa..0000000000
--- a/third-party/td/td/td/telegram/MessageSearchOffset.h
+++ /dev/null
@@ -1,30 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-struct MessageSearchOffset {
-  int32 date_ = 0;
-  MessageId message_id_;
-  DialogId dialog_id_;
-
-  void update_from_message(const telegram_api::object_ptr<telegram_api::Message> &message);
-
-  string to_string() const;
-
-  static Result<MessageSearchOffset> from_string(const string &offset);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSelfDestructType.cpp b/third-party/td/td/td/telegram/MessageSelfDestructType.cpp
deleted file mode 100644
index 5a5c5ca66e..0000000000
--- a/third-party/td/td/td/telegram/MessageSelfDestructType.cpp
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageSelfDestructType.h"
-
-namespace td {
-
-bool MessageSelfDestructType::is_valid() const {
-  return ttl_ > 0;
-}
-
-bool MessageSelfDestructType::is_empty() const {
-  return ttl_ == 0;
-}
-
-bool MessageSelfDestructType::is_immediate() const {
-  return ttl_ == 0x7FFFFFFF;
-}
-
-bool MessageSelfDestructType::is_secret_message_content(MessageContentType content_type) {
-  if (ttl_ <= 0 || ttl_ > 60) {
-    return is_immediate();
-  }
-  return can_be_secret_message_content(content_type);
-}
-
-void MessageSelfDestructType::ensure_at_least(int32 ttl) {
-  if (is_immediate() || ttl_ >= ttl || ttl_ <= 0 || ttl <= 0) {
-    return;
-  }
-  ttl_ = ttl;
-}
-
-Result<MessageSelfDestructType> MessageSelfDestructType::get_message_self_destruct_type(
-    td_api::object_ptr<td_api::MessageSelfDestructType> &&self_destruct_type) {
-  if (self_destruct_type == nullptr) {
-    return MessageSelfDestructType();
-  }
-  switch (self_destruct_type->get_id()) {
-    case td_api::messageSelfDestructTypeTimer::ID: {
-      auto ttl =
-          static_cast<const td_api::messageSelfDestructTypeTimer *>(self_destruct_type.get())->self_destruct_time_;
-
-      static constexpr int32 MAX_PRIVATE_MESSAGE_TTL = 60;  // server side limit
-      if (ttl <= 0 || ttl > MAX_PRIVATE_MESSAGE_TTL) {
-        return Status::Error(400, "Invalid message content self-destruct time specified");
-      }
-      return MessageSelfDestructType(ttl, true);
-    }
-    case td_api::messageSelfDestructTypeImmediately::ID:
-      return MessageSelfDestructType(0x7FFFFFFF, true);
-    default:
-      UNREACHABLE();
-      return MessageSelfDestructType();
-  }
-}
-
-td_api::object_ptr<td_api::MessageSelfDestructType> MessageSelfDestructType::get_message_self_destruct_type_object()
-    const {
-  if (is_immediate()) {
-    return td_api::make_object<td_api::messageSelfDestructTypeImmediately>();
-  }
-  if (!is_empty()) {
-    return td_api::make_object<td_api::messageSelfDestructTypeTimer>(ttl_);
-  }
-  return nullptr;
-}
-
-int32 MessageSelfDestructType::get_input_ttl() const {
-  return ttl_;
-}
-
-bool operator==(const MessageSelfDestructType &lhs, const MessageSelfDestructType &rhs) {
-  return lhs.ttl_ == rhs.ttl_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageSelfDestructType &message_ttl) {
-  if (message_ttl.is_empty()) {
-    return string_builder << "non-self-destruct";
-  }
-  if (message_ttl.is_immediate()) {
-    return string_builder << "self-destruct immediately";
-  }
-  return string_builder << "self-destruct at " << message_ttl.get_input_ttl();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSelfDestructType.h b/third-party/td/td/td/telegram/MessageSelfDestructType.h
deleted file mode 100644
index 66b04fbe20..0000000000
--- a/third-party/td/td/td/telegram/MessageSelfDestructType.h
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <type_traits>
-
-namespace td {
-
-class MessageSelfDestructType {
-  int32 ttl_ = 0;
-
-  friend bool operator==(const MessageSelfDestructType &lhs, const MessageSelfDestructType &rhs);
-
- public:
-  MessageSelfDestructType() = default;
-
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  MessageSelfDestructType(T ttl) = delete;
-
-  MessageSelfDestructType(int32 ttl, bool allow_immediate) : ttl_(ttl) {
-    if (!allow_immediate && is_immediate()) {
-      ttl_ = 0x7FFFFFFE;
-    }
-  }
-
-  bool is_valid() const;
-
-  bool is_empty() const;
-
-  bool is_immediate() const;
-
-  bool is_secret_message_content(MessageContentType content_type);
-
-  void ensure_at_least(int32 ttl);
-
-  static Result<MessageSelfDestructType> get_message_self_destruct_type(
-      td_api::object_ptr<td_api::MessageSelfDestructType> &&self_destruct_type);
-
-  td_api::object_ptr<td_api::MessageSelfDestructType> get_message_self_destruct_type_object() const;
-
-  int32 get_input_ttl() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(ttl_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(ttl_, parser);
-  }
-};
-
-bool operator==(const MessageSelfDestructType &lhs, const MessageSelfDestructType &rhs);
-
-inline bool operator!=(const MessageSelfDestructType &lhs, const MessageSelfDestructType &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageSelfDestructType &message_self_destruct_type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSender.cpp b/third-party/td/td/td/telegram/MessageSender.cpp
deleted file mode 100644
index 0281bf7822..0000000000
--- a/third-party/td/td/td/telegram/MessageSender.cpp
+++ /dev/null
@@ -1,173 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageSender.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-td_api::object_ptr<td_api::MessageSender> get_message_sender_object_const(Td *td, UserId user_id, DialogId dialog_id,
-                                                                          const char *source) {
-  if (dialog_id.is_valid() && td->messages_manager_->have_dialog(dialog_id)) {
-    return td_api::make_object<td_api::messageSenderChat>(
-        td->dialog_manager_->get_chat_id_object(dialog_id, "get_message_sender_object_const"));
-  }
-  if (!user_id.is_valid()) {
-    // can happen only if the server sends a message with wrong sender
-    LOG(ERROR) << "Receive message with wrong sender " << user_id << '/' << dialog_id << " from " << source;
-    user_id = td->user_manager_->add_service_notifications_user();
-  }
-  return td_api::make_object<td_api::messageSenderUser>(td->user_manager_->get_user_id_object(user_id, source));
-}
-
-td_api::object_ptr<td_api::MessageSender> get_message_sender_object_const(Td *td, DialogId dialog_id,
-                                                                          const char *source) {
-  if (dialog_id.get_type() == DialogType::User) {
-    return get_message_sender_object_const(td, dialog_id.get_user_id(), DialogId(), source);
-  }
-  return get_message_sender_object_const(td, UserId(), dialog_id, source);
-}
-
-td_api::object_ptr<td_api::MessageSender> get_message_sender_object(Td *td, UserId user_id, DialogId dialog_id,
-                                                                    const char *source) {
-  if (dialog_id.is_valid() && !td->messages_manager_->have_dialog(dialog_id)) {
-    td->dialog_manager_->force_create_dialog(dialog_id, source, true);
-  }
-  if (!user_id.is_valid() && td->auth_manager_->is_bot()) {
-    td->user_manager_->add_anonymous_bot_user();
-    td->user_manager_->add_channel_bot_user();
-    td->user_manager_->add_service_notifications_user();
-  }
-  return get_message_sender_object_const(td, user_id, dialog_id, source);
-}
-
-td_api::object_ptr<td_api::MessageSender> get_message_sender_object(Td *td, DialogId dialog_id, const char *source) {
-  if (dialog_id.get_type() == DialogType::User) {
-    return get_message_sender_object(td, dialog_id.get_user_id(), DialogId(), source);
-  }
-  return get_message_sender_object(td, UserId(), dialog_id, source);
-}
-
-td_api::object_ptr<td_api::MessageSender> get_min_message_sender_object(Td *td, DialogId dialog_id,
-                                                                        const char *source) {
-  auto dialog_type = dialog_id.get_type();
-  if (dialog_type == DialogType::User) {
-    auto user_id = dialog_id.get_user_id();
-    if (td->user_manager_->have_min_user(user_id)) {
-      return td_api::make_object<td_api::messageSenderUser>(td->user_manager_->get_user_id_object(user_id, source));
-    }
-  } else {
-    if (!td->messages_manager_->have_dialog(dialog_id) &&
-        (td->dialog_manager_->have_dialog_info(dialog_id) ||
-         (dialog_type == DialogType::Channel && td->chat_manager_->have_min_channel(dialog_id.get_channel_id())))) {
-      LOG(INFO) << "Force creation of " << dialog_id;
-      td->dialog_manager_->force_create_dialog(dialog_id, source, true);
-    }
-    if (td->messages_manager_->have_dialog(dialog_id)) {
-      return td_api::make_object<td_api::messageSenderChat>(
-          td->dialog_manager_->get_chat_id_object(dialog_id, "get_min_message_sender_object"));
-    }
-  }
-  LOG(ERROR) << "Can't return unknown " << dialog_id << " from " << source;
-  return nullptr;
-}
-
-vector<DialogId> get_message_sender_dialog_ids(Td *td,
-                                               const vector<telegram_api::object_ptr<telegram_api::Peer>> &peers) {
-  vector<DialogId> message_sender_dialog_ids;
-  message_sender_dialog_ids.reserve(peers.size());
-  for (auto &peer : peers) {
-    DialogId dialog_id(peer);
-    if (!dialog_id.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << dialog_id << " as message sender";
-      continue;
-    }
-    if (dialog_id.get_type() == DialogType::User) {
-      if (!td->user_manager_->have_user(dialog_id.get_user_id())) {
-        LOG(ERROR) << "Receive unknown " << dialog_id.get_user_id();
-        continue;
-      }
-    } else {
-      if (!td->dialog_manager_->have_dialog_info(dialog_id)) {
-        continue;
-      }
-      td->dialog_manager_->force_create_dialog(dialog_id, "get_message_sender_dialog_ids");
-      if (!td->messages_manager_->have_dialog(dialog_id)) {
-        continue;
-      }
-    }
-    message_sender_dialog_ids.push_back(dialog_id);
-  }
-  return message_sender_dialog_ids;
-}
-
-td_api::object_ptr<td_api::messageSenders> convert_message_senders_object(
-    Td *td, const vector<telegram_api::object_ptr<telegram_api::Peer>> &peers) {
-  auto dialog_ids = get_message_sender_dialog_ids(td, peers);
-  auto message_senders = transform(dialog_ids, [td](DialogId dialog_id) {
-    return get_message_sender_object(td, dialog_id, "convert_message_senders_object");
-  });
-  return td_api::make_object<td_api::messageSenders>(narrow_cast<int32>(dialog_ids.size()), std::move(message_senders));
-}
-
-Result<DialogId> get_message_sender_dialog_id(Td *td,
-                                              const td_api::object_ptr<td_api::MessageSender> &message_sender_id,
-                                              bool check_access, bool allow_empty) {
-  if (message_sender_id == nullptr) {
-    if (allow_empty) {
-      return DialogId();
-    }
-    return Status::Error(400, "Message sender must be non-empty");
-  }
-  switch (message_sender_id->get_id()) {
-    case td_api::messageSenderUser::ID: {
-      auto user_id = UserId(static_cast<const td_api::messageSenderUser *>(message_sender_id.get())->user_id_);
-      if (!user_id.is_valid()) {
-        if (allow_empty && user_id == UserId()) {
-          return DialogId();
-        }
-        return Status::Error(400, "Invalid user identifier specified");
-      }
-      bool know_user = td->user_manager_->have_user_force(user_id, "get_message_sender_dialog_id");
-      if (check_access && !know_user) {
-        return Status::Error(400, "Unknown user identifier specified");
-      }
-      return DialogId(user_id);
-    }
-    case td_api::messageSenderChat::ID: {
-      auto dialog_id = DialogId(static_cast<const td_api::messageSenderChat *>(message_sender_id.get())->chat_id_);
-      if (!dialog_id.is_valid()) {
-        if (allow_empty && dialog_id == DialogId()) {
-          return DialogId();
-        }
-        return Status::Error(400, "Invalid chat identifier specified");
-      }
-      bool know_dialog =
-          dialog_id.get_type() == DialogType::User
-              ? td->user_manager_->have_user_force(dialog_id.get_user_id(), "get_message_sender_dialog_id 2")
-              : td->dialog_manager_->have_dialog_force(dialog_id, "get_message_sender_dialog_id");
-      if (check_access && !know_dialog) {
-        return Status::Error(400, "Unknown chat identifier specified");
-      }
-      return dialog_id;
-    }
-    default:
-      UNREACHABLE();
-      return DialogId();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSender.h b/third-party/td/td/td/telegram/MessageSender.h
deleted file mode 100644
index 9f0516f407..0000000000
--- a/third-party/td/td/td/telegram/MessageSender.h
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-td_api::object_ptr<td_api::MessageSender> get_message_sender_object_const(Td *td, UserId user_id, DialogId dialog_id,
-                                                                          const char *source);
-
-td_api::object_ptr<td_api::MessageSender> get_message_sender_object_const(Td *td, DialogId dialog_id,
-                                                                          const char *source);
-
-td_api::object_ptr<td_api::MessageSender> get_message_sender_object(Td *td, UserId user_id, DialogId dialog_id,
-                                                                    const char *source);
-
-td_api::object_ptr<td_api::MessageSender> get_message_sender_object(Td *td, DialogId dialog_id, const char *source);
-
-td_api::object_ptr<td_api::MessageSender> get_min_message_sender_object(Td *td, DialogId dialog_id, const char *source);
-
-vector<DialogId> get_message_sender_dialog_ids(Td *td,
-                                               const vector<telegram_api::object_ptr<telegram_api::Peer>> &peers);
-
-td_api::object_ptr<td_api::messageSenders> convert_message_senders_object(
-    Td *td, const vector<telegram_api::object_ptr<telegram_api::Peer>> &peers);
-
-Result<DialogId> get_message_sender_dialog_id(Td *td,
-                                              const td_api::object_ptr<td_api::MessageSender> &message_sender_id,
-                                              bool check_access, bool allow_empty);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSource.cpp b/third-party/td/td/td/telegram/MessageSource.cpp
deleted file mode 100644
index a115a88e9a..0000000000
--- a/third-party/td/td/td/telegram/MessageSource.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageSource.h"
-
-namespace td {
-
-StringBuilder &operator<<(StringBuilder &string_builder, MessageSource source) {
-  switch (source) {
-    case MessageSource::Auto:
-      return string_builder << "Auto";
-    case MessageSource::DialogHistory:
-      return string_builder << "ChatHistory";
-    case MessageSource::MessageThreadHistory:
-      return string_builder << "MessageThreadHistory";
-    case MessageSource::ForumTopicHistory:
-      return string_builder << "ForumTopicHistory";
-    case MessageSource::HistoryPreview:
-      return string_builder << "HistoryPreview";
-    case MessageSource::DialogList:
-      return string_builder << "DialogList";
-    case MessageSource::Search:
-      return string_builder << "Search";
-    case MessageSource::DialogEventLog:
-      return string_builder << "DialogEventLog";
-    case MessageSource::Notification:
-      return string_builder << "Notification";
-    case MessageSource::Screenshot:
-      return string_builder << "Screenshot";
-    case MessageSource::Other:
-      return string_builder << "Other";
-    default:
-      UNREACHABLE();
-  }
-}
-
-MessageSource get_message_source(const td_api::object_ptr<td_api::MessageSource> &source) {
-  if (source == nullptr) {
-    return MessageSource::Auto;
-  }
-  switch (source->get_id()) {
-    case td_api::messageSourceChatHistory::ID:
-      return MessageSource::DialogHistory;
-    case td_api::messageSourceMessageThreadHistory::ID:
-      return MessageSource::MessageThreadHistory;
-    case td_api::messageSourceForumTopicHistory::ID:
-      return MessageSource::ForumTopicHistory;
-    case td_api::messageSourceHistoryPreview::ID:
-      return MessageSource::HistoryPreview;
-    case td_api::messageSourceChatList::ID:
-      return MessageSource::DialogList;
-    case td_api::messageSourceSearch::ID:
-      return MessageSource::Search;
-    case td_api::messageSourceChatEventLog::ID:
-      return MessageSource::DialogEventLog;
-    case td_api::messageSourceNotification::ID:
-      return MessageSource::Notification;
-    case td_api::messageSourceScreenshot::ID:
-      return MessageSource::Screenshot;
-    case td_api::messageSourceOther::ID:
-      return MessageSource::Other;
-    default:
-      UNREACHABLE();
-      return MessageSource::Other;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageSource.h b/third-party/td/td/td/telegram/MessageSource.h
deleted file mode 100644
index a9f5a50fd6..0000000000
--- a/third-party/td/td/td/telegram/MessageSource.h
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class MessageSource : int32 {
-  Auto,
-  DialogHistory,
-  MessageThreadHistory,
-  ForumTopicHistory,
-  HistoryPreview,
-  DialogList,
-  Search,
-  DialogEventLog,
-  Notification,
-  Screenshot,
-  Other
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, MessageSource source);
-
-MessageSource get_message_source(const td_api::object_ptr<td_api::MessageSource> &source);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageThreadDb.cpp b/third-party/td/td/td/telegram/MessageThreadDb.cpp
deleted file mode 100644
index 66a1a7ede2..0000000000
--- a/third-party/td/td/td/telegram/MessageThreadDb.cpp
+++ /dev/null
@@ -1,343 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageThreadDb.h"
-
-#include "td/telegram/Version.h"
-
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteStatement.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/SchedulerLocalStorage.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Time.h"
-
-namespace td {
-// NB: must happen inside a transaction
-Status init_message_thread_db(SqliteDb &db, int32 version) {
-  LOG(INFO) << "Init message thread database " << tag("version", version);
-
-  // Check if database exists
-  TRY_RESULT(has_table, db.has_table("threads"));
-  if (!has_table) {
-    version = 0;
-  }
-
-  if (version > current_db_version()) {
-    TRY_STATUS(drop_message_thread_db(db, version));
-    version = 0;
-  }
-
-  if (version == 0) {
-    LOG(INFO) << "Create new message thread database";
-    TRY_STATUS(
-        db.exec("CREATE TABLE IF NOT EXISTS threads (dialog_id INT8, thread_id INT8, thread_order INT8, data BLOB, "
-                "PRIMARY KEY (dialog_id, thread_id))"));
-    TRY_STATUS(
-        db.exec("CREATE INDEX IF NOT EXISTS dialog_threads_by_thread_order ON threads (dialog_id, thread_order)"));
-    version = current_db_version();
-  }
-
-  return Status::OK();
-}
-
-// NB: must happen inside a transaction
-Status drop_message_thread_db(SqliteDb &db, int version) {
-  if (version > current_db_version()) {
-    LOG(WARNING) << "Drop message_thread_db " << tag("version", version)
-                 << tag("current_db_version", current_db_version());
-  }
-  return db.exec("DROP TABLE IF EXISTS threads");
-}
-
-class MessageThreadDbImpl final : public MessageThreadDbSyncInterface {
- public:
-  explicit MessageThreadDbImpl(SqliteDb db) : db_(std::move(db)) {
-    init().ensure();
-  }
-
-  Status init() {
-    TRY_RESULT_ASSIGN(add_thread_stmt_, db_.get_statement("INSERT OR REPLACE INTO threads VALUES(?1, ?2, ?3, ?4)"));
-    TRY_RESULT_ASSIGN(delete_thread_stmt_,
-                      db_.get_statement("DELETE FROM threads WHERE dialog_id = ?1 AND thread_id = ?2"));
-    TRY_RESULT_ASSIGN(delete_all_dialog_threads_stmt_, db_.get_statement("DELETE FROM threads WHERE dialog_id = ?1"));
-    TRY_RESULT_ASSIGN(get_thread_stmt_,
-                      db_.get_statement("SELECT data FROM threads WHERE dialog_id = ?1 AND thread_id = ?2"));
-    TRY_RESULT_ASSIGN(get_threads_stmt_,
-                      db_.get_statement("SELECT data, dialog_id, thread_id, thread_order FROM threads WHERE dialog_id "
-                                        "= ?1 AND thread_order < ?2 ORDER BY thread_order DESC LIMIT ?3"));
-
-    // LOG(ERROR) << delete_thread_stmt_.explain().ok();
-    // LOG(ERROR) << delete_all_dialog_threads_stmt_.explain().ok();
-    // LOG(ERROR) << get_thread_stmt_.explain().ok();
-    // LOG(ERROR) << get_threads_stmt_.explain().ok();
-    // LOG(FATAL) << "EXPLAINED";
-
-    return Status::OK();
-  }
-
-  void add_message_thread(DialogId dialog_id, MessageId top_thread_message_id, int64 order, BufferSlice data) final {
-    SCOPE_EXIT {
-      add_thread_stmt_.reset();
-    };
-    add_thread_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    add_thread_stmt_.bind_int64(2, top_thread_message_id.get()).ensure();
-    add_thread_stmt_.bind_int64(3, order).ensure();
-    add_thread_stmt_.bind_blob(4, data.as_slice()).ensure();
-    add_thread_stmt_.step().ensure();
-  }
-
-  void delete_message_thread(DialogId dialog_id, MessageId top_thread_message_id) final {
-    SCOPE_EXIT {
-      delete_thread_stmt_.reset();
-    };
-    delete_thread_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    delete_thread_stmt_.bind_int64(2, top_thread_message_id.get()).ensure();
-    delete_thread_stmt_.step().ensure();
-  }
-
-  void delete_all_dialog_message_threads(DialogId dialog_id) final {
-    SCOPE_EXIT {
-      delete_all_dialog_threads_stmt_.reset();
-    };
-    delete_all_dialog_threads_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    delete_all_dialog_threads_stmt_.step().ensure();
-  }
-
-  BufferSlice get_message_thread(DialogId dialog_id, MessageId top_thread_message_id) final {
-    SCOPE_EXIT {
-      get_thread_stmt_.reset();
-    };
-
-    get_thread_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    get_thread_stmt_.bind_int64(2, top_thread_message_id.get()).ensure();
-    get_thread_stmt_.step().ensure();
-    if (!get_thread_stmt_.has_row()) {
-      return BufferSlice();
-    }
-    return BufferSlice(get_thread_stmt_.view_blob(0));
-  }
-
-  MessageThreadDbMessageThreads get_message_threads(DialogId dialog_id, int64 offset_order, int32 limit) final {
-    SCOPE_EXIT {
-      get_threads_stmt_.reset();
-    };
-
-    get_threads_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    get_threads_stmt_.bind_int64(2, offset_order).ensure();
-    get_threads_stmt_.bind_int32(3, limit).ensure();
-
-    MessageThreadDbMessageThreads result;
-    result.next_order = offset_order;
-    get_threads_stmt_.step().ensure();
-    while (get_threads_stmt_.has_row()) {
-      BufferSlice data(get_threads_stmt_.view_blob(0));
-      result.next_order = get_threads_stmt_.view_int64(3);
-      LOG(INFO) << "Load thread of " << MessageId(get_threads_stmt_.view_int64(2)) << " in "
-                << DialogId(get_threads_stmt_.view_int64(1)) << " with order " << result.next_order;
-      result.message_threads.emplace_back(std::move(data));
-      get_threads_stmt_.step().ensure();
-    }
-    return result;
-  }
-
-  Status begin_write_transaction() final {
-    return db_.begin_write_transaction();
-  }
-
-  Status commit_transaction() final {
-    return db_.commit_transaction();
-  }
-
- private:
-  SqliteDb db_;
-
-  SqliteStatement add_thread_stmt_;
-  SqliteStatement delete_thread_stmt_;
-  SqliteStatement delete_all_dialog_threads_stmt_;
-  SqliteStatement get_thread_stmt_;
-  SqliteStatement get_threads_stmt_;
-};
-
-std::shared_ptr<MessageThreadDbSyncSafeInterface> create_message_thread_db_sync(
-    std::shared_ptr<SqliteConnectionSafe> sqlite_connection) {
-  class MessageThreadDbSyncSafe final : public MessageThreadDbSyncSafeInterface {
-   public:
-    explicit MessageThreadDbSyncSafe(std::shared_ptr<SqliteConnectionSafe> sqlite_connection)
-        : lsls_db_([safe_connection = std::move(sqlite_connection)] {
-          return make_unique<MessageThreadDbImpl>(safe_connection->get().clone());
-        }) {
-    }
-    MessageThreadDbSyncInterface &get() final {
-      return *lsls_db_.get();
-    }
-
-   private:
-    LazySchedulerLocalStorage<unique_ptr<MessageThreadDbSyncInterface>> lsls_db_;
-  };
-  return std::make_shared<MessageThreadDbSyncSafe>(std::move(sqlite_connection));
-}
-
-class MessageThreadDbAsync final : public MessageThreadDbAsyncInterface {
- public:
-  MessageThreadDbAsync(std::shared_ptr<MessageThreadDbSyncSafeInterface> sync_db, int32 scheduler_id) {
-    impl_ = create_actor_on_scheduler<Impl>("MessageThreadDbActor", scheduler_id, std::move(sync_db));
-  }
-
-  void add_message_thread(DialogId dialog_id, MessageId top_thread_message_id, int64 order, BufferSlice data,
-                          Promise<Unit> promise) final {
-    send_closure(impl_, &Impl::add_message_thread, dialog_id, top_thread_message_id, order, std::move(data),
-                 std::move(promise));
-  }
-
-  void delete_message_thread(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> promise) final {
-    send_closure(impl_, &Impl::delete_message_thread, dialog_id, top_thread_message_id, std::move(promise));
-  }
-
-  void delete_all_dialog_message_threads(DialogId dialog_id, Promise<Unit> promise) final {
-    send_closure(impl_, &Impl::delete_all_dialog_message_threads, dialog_id, std::move(promise));
-  }
-
-  void get_message_thread(DialogId dialog_id, MessageId top_thread_message_id, Promise<BufferSlice> promise) final {
-    send_closure_later(impl_, &Impl::get_message_thread, dialog_id, top_thread_message_id, std::move(promise));
-  }
-
-  void get_message_threads(DialogId dialog_id, int64 offset_order, int32 limit,
-                           Promise<MessageThreadDbMessageThreads> promise) final {
-    send_closure_later(impl_, &Impl::get_message_threads, dialog_id, offset_order, limit, std::move(promise));
-  }
-
-  void close(Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::close, std::move(promise));
-  }
-
-  void force_flush() final {
-    send_closure_later(impl_, &Impl::force_flush);
-  }
-
- private:
-  class Impl final : public Actor {
-   public:
-    explicit Impl(std::shared_ptr<MessageThreadDbSyncSafeInterface> sync_db_safe)
-        : sync_db_safe_(std::move(sync_db_safe)) {
-    }
-
-    void add_message_thread(DialogId dialog_id, MessageId top_thread_message_id, int64 order, BufferSlice data,
-                            Promise<Unit> promise) {
-      add_write_query([this, dialog_id, top_thread_message_id, order, data = std::move(data),
-                       promise = std::move(promise)](Unit) mutable {
-        sync_db_->add_message_thread(dialog_id, top_thread_message_id, order, std::move(data));
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void delete_message_thread(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> promise) {
-      add_write_query([this, dialog_id, top_thread_message_id, promise = std::move(promise)](Unit) mutable {
-        sync_db_->delete_message_thread(dialog_id, top_thread_message_id);
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void delete_all_dialog_message_threads(DialogId dialog_id, Promise<Unit> promise) {
-      add_write_query([this, dialog_id, promise = std::move(promise)](Unit) mutable {
-        sync_db_->delete_all_dialog_message_threads(dialog_id);
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void on_write_result(Promise<Unit> &&promise) {
-      // We are inside a transaction and don't know how to handle errors
-      finished_writes_.push_back(std::move(promise));
-    }
-
-    void get_message_thread(DialogId dialog_id, MessageId top_thread_message_id, Promise<BufferSlice> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_message_thread(dialog_id, top_thread_message_id));
-    }
-
-    void get_message_threads(DialogId dialog_id, int64 offset_order, int32 limit,
-                             Promise<MessageThreadDbMessageThreads> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_message_threads(dialog_id, offset_order, limit));
-    }
-
-    void close(Promise<> promise) {
-      do_flush();
-      sync_db_safe_.reset();
-      sync_db_ = nullptr;
-      promise.set_value(Unit());
-      stop();
-    }
-
-    void force_flush() {
-      do_flush();
-      LOG(INFO) << "MessageThreadDb flushed";
-    }
-
-   private:
-    std::shared_ptr<MessageThreadDbSyncSafeInterface> sync_db_safe_;
-    MessageThreadDbSyncInterface *sync_db_ = nullptr;
-
-    static constexpr size_t MAX_PENDING_QUERIES_COUNT{50};
-    static constexpr double MAX_PENDING_QUERIES_DELAY{0.01};
-
-    //NB: order is important, destructor of pending_writes_ will change finished_writes_
-    vector<Promise<Unit>> finished_writes_;
-    vector<Promise<Unit>> pending_writes_;  // TODO use Action
-    double wakeup_at_ = 0;
-
-    template <class F>
-    void add_write_query(F &&f) {
-      pending_writes_.push_back(PromiseCreator::lambda(std::forward<F>(f)));
-      if (pending_writes_.size() > MAX_PENDING_QUERIES_COUNT) {
-        do_flush();
-        wakeup_at_ = 0;
-      } else if (wakeup_at_ == 0) {
-        wakeup_at_ = Time::now_cached() + MAX_PENDING_QUERIES_DELAY;
-      }
-      if (wakeup_at_ != 0) {
-        set_timeout_at(wakeup_at_);
-      }
-    }
-
-    void add_read_query() {
-      do_flush();
-    }
-
-    void do_flush() {
-      if (pending_writes_.empty()) {
-        return;
-      }
-      sync_db_->begin_write_transaction().ensure();
-      set_promises(pending_writes_);
-      sync_db_->commit_transaction().ensure();
-      set_promises(finished_writes_);
-      cancel_timeout();
-    }
-
-    void timeout_expired() final {
-      do_flush();
-    }
-
-    void start_up() final {
-      sync_db_ = &sync_db_safe_->get();
-    }
-  };
-  ActorOwn<Impl> impl_;
-};
-
-std::shared_ptr<MessageThreadDbAsyncInterface> create_message_thread_db_async(
-    std::shared_ptr<MessageThreadDbSyncSafeInterface> sync_db, int32 scheduler_id) {
-  return std::make_shared<MessageThreadDbAsync>(std::move(sync_db), scheduler_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageThreadDb.h b/third-party/td/td/td/telegram/MessageThreadDb.h
deleted file mode 100644
index c651f38428..0000000000
--- a/third-party/td/td/td/telegram/MessageThreadDb.h
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class SqliteConnectionSafe;
-class SqliteDb;
-
-struct MessageThreadDbMessageThreads {
-  vector<BufferSlice> message_threads;
-  int64 next_order = 0;
-};
-
-class MessageThreadDbSyncInterface {
- public:
-  MessageThreadDbSyncInterface() = default;
-  MessageThreadDbSyncInterface(const MessageThreadDbSyncInterface &) = delete;
-  MessageThreadDbSyncInterface &operator=(const MessageThreadDbSyncInterface &) = delete;
-  virtual ~MessageThreadDbSyncInterface() = default;
-
-  virtual void add_message_thread(DialogId dialog_id, MessageId top_thread_message_id, int64 order,
-                                  BufferSlice data) = 0;
-
-  virtual void delete_message_thread(DialogId dialog_id, MessageId top_thread_message_id) = 0;
-
-  virtual void delete_all_dialog_message_threads(DialogId dialog_id) = 0;
-
-  virtual BufferSlice get_message_thread(DialogId dialog_id, MessageId top_thread_message_id) = 0;
-
-  virtual MessageThreadDbMessageThreads get_message_threads(DialogId dialog_id, int64 offset_order, int32 limit) = 0;
-
-  virtual Status begin_write_transaction() = 0;
-
-  virtual Status commit_transaction() = 0;
-};
-
-class MessageThreadDbSyncSafeInterface {
- public:
-  MessageThreadDbSyncSafeInterface() = default;
-  MessageThreadDbSyncSafeInterface(const MessageThreadDbSyncSafeInterface &) = delete;
-  MessageThreadDbSyncSafeInterface &operator=(const MessageThreadDbSyncSafeInterface &) = delete;
-  virtual ~MessageThreadDbSyncSafeInterface() = default;
-
-  virtual MessageThreadDbSyncInterface &get() = 0;
-};
-
-class MessageThreadDbAsyncInterface {
- public:
-  MessageThreadDbAsyncInterface() = default;
-  MessageThreadDbAsyncInterface(const MessageThreadDbAsyncInterface &) = delete;
-  MessageThreadDbAsyncInterface &operator=(const MessageThreadDbAsyncInterface &) = delete;
-  virtual ~MessageThreadDbAsyncInterface() = default;
-
-  virtual void add_message_thread(DialogId dialog_id, MessageId top_thread_message_id, int64 order, BufferSlice data,
-                                  Promise<Unit> promise) = 0;
-
-  virtual void delete_message_thread(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> promise) = 0;
-
-  virtual void delete_all_dialog_message_threads(DialogId dialog_id, Promise<Unit> promise) = 0;
-
-  virtual void get_message_thread(DialogId dialog_id, MessageId top_thread_message_id,
-                                  Promise<BufferSlice> promise) = 0;
-
-  virtual void get_message_threads(DialogId dialog_id, int64 offset_order, int32 limit,
-                                   Promise<MessageThreadDbMessageThreads> promise) = 0;
-
-  virtual void close(Promise<Unit> promise) = 0;
-
-  virtual void force_flush() = 0;
-};
-
-Status init_message_thread_db(SqliteDb &db, int version) TD_WARN_UNUSED_RESULT;
-
-Status drop_message_thread_db(SqliteDb &db, int version) TD_WARN_UNUSED_RESULT;
-
-std::shared_ptr<MessageThreadDbSyncSafeInterface> create_message_thread_db_sync(
-    std::shared_ptr<SqliteConnectionSafe> sqlite_connection);
-
-std::shared_ptr<MessageThreadDbAsyncInterface> create_message_thread_db_async(
-    std::shared_ptr<MessageThreadDbSyncSafeInterface> sync_db, int32 scheduler_id = -1);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageThreadInfo.h b/third-party/td/td/td/telegram/MessageThreadInfo.h
deleted file mode 100644
index 9c5a44c5a4..0000000000
--- a/third-party/td/td/td/telegram/MessageThreadInfo.h
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct MessageThreadInfo {
-  DialogId dialog_id;
-  vector<MessageId> message_ids;
-  int32 unread_message_count = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageTtl.cpp b/third-party/td/td/td/telegram/MessageTtl.cpp
deleted file mode 100644
index c9f9a941c8..0000000000
--- a/third-party/td/td/td/telegram/MessageTtl.cpp
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageTtl.h"
-
-namespace td {
-
-bool MessageTtl::is_empty() const {
-  return period_ == 0;
-}
-
-int32 MessageTtl::get_message_auto_delete_time_object() const {
-  return period_;
-}
-
-int32 MessageTtl::get_input_ttl_period() const {
-  return period_;
-}
-
-bool operator==(const MessageTtl &lhs, const MessageTtl &rhs) {
-  return lhs.period_ == rhs.period_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageTtl &message_ttl) {
-  return string_builder << "MessageTtl[" << message_ttl.period_ << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageTtl.h b/third-party/td/td/td/telegram/MessageTtl.h
deleted file mode 100644
index 802cbf6171..0000000000
--- a/third-party/td/td/td/telegram/MessageTtl.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <type_traits>
-
-namespace td {
-
-class MessageTtl {
-  int32 period_ = 0;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageTtl &message_ttl);
-
-  friend bool operator==(const MessageTtl &lhs, const MessageTtl &rhs);
-
- public:
-  MessageTtl() = default;
-
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  MessageTtl(T period) = delete;
-
-  explicit MessageTtl(int32 period) : period_(period) {
-  }
-
-  bool is_empty() const;
-
-  int32 get_message_auto_delete_time_object() const;
-
-  int32 get_input_ttl_period() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(period_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(period_, parser);
-  }
-};
-
-bool operator==(const MessageTtl &lhs, const MessageTtl &rhs);
-
-inline bool operator!=(const MessageTtl &lhs, const MessageTtl &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageTtl &message_ttl);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageViewer.cpp b/third-party/td/td/td/telegram/MessageViewer.cpp
deleted file mode 100644
index 263c6e8b94..0000000000
--- a/third-party/td/td/td/telegram/MessageViewer.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageViewer.h"
-
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-MessageViewer::MessageViewer(telegram_api::object_ptr<telegram_api::readParticipantDate> &&read_date)
-    : MessageViewer(UserId(read_date->user_id_), read_date->date_) {
-}
-
-td_api::object_ptr<td_api::messageViewer> MessageViewer::get_message_viewer_object(UserManager *user_manager) const {
-  return td_api::make_object<td_api::messageViewer>(
-      user_manager->get_user_id_object(user_id_, "get_message_viewer_object"), date_);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageViewer &viewer) {
-  return string_builder << '[' << viewer.user_id_ << " at " << viewer.date_ << ']';
-}
-
-MessageViewers::MessageViewers(vector<telegram_api::object_ptr<telegram_api::readParticipantDate>> &&read_dates) {
-  for (auto &read_date : read_dates) {
-    message_viewers_.emplace_back(std::move(read_date));
-    auto user_id = message_viewers_.back().get_user_id();
-    if (!user_id.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << user_id << " as a viewer of a message";
-      message_viewers_.pop_back();
-    }
-  }
-}
-
-vector<UserId> MessageViewers::get_user_ids() const {
-  return transform(message_viewers_, [](auto &viewer) { return viewer.get_user_id(); });
-}
-
-td_api::object_ptr<td_api::messageViewers> MessageViewers::get_message_viewers_object(UserManager *user_manager) const {
-  return td_api::make_object<td_api::messageViewers>(
-      transform(message_viewers_, [user_manager](const MessageViewer &message_viewer) {
-        return message_viewer.get_message_viewer_object(user_manager);
-      }));
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageViewers &viewers) {
-  return string_builder << viewers.message_viewers_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessageViewer.h b/third-party/td/td/td/telegram/MessageViewer.h
deleted file mode 100644
index 653b8bcd6b..0000000000
--- a/third-party/td/td/td/telegram/MessageViewer.h
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class UserManager;
-
-class MessageViewer {
-  UserId user_id_;
-  int32 date_ = 0;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageViewer &viewer);
-
- public:
-  explicit MessageViewer(telegram_api::object_ptr<telegram_api::readParticipantDate> &&read_date);
-
-  MessageViewer(UserId user_id, int32 date) : user_id_(user_id), date_(td::max(date, static_cast<int32>(0))) {
-  }
-
-  UserId get_user_id() const {
-    return user_id_;
-  }
-
-  bool is_empty() const {
-    return user_id_ == UserId() && date_ == 0;
-  }
-
-  td_api::object_ptr<td_api::messageViewer> get_message_viewer_object(UserManager *user_manager) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageViewer &viewer);
-
-class MessageViewers {
-  vector<MessageViewer> message_viewers_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MessageViewers &viewers);
-
- public:
-  MessageViewers() = default;
-
-  explicit MessageViewers(vector<telegram_api::object_ptr<telegram_api::readParticipantDate>> &&read_dates);
-
-  vector<UserId> get_user_ids() const;
-
-  td_api::object_ptr<td_api::messageViewers> get_message_viewers_object(UserManager *user_manager) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MessageViewers &viewers);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessagesInfo.cpp b/third-party/td/td/td/telegram/MessagesInfo.cpp
deleted file mode 100644
index ae1bac06f2..0000000000
--- a/third-party/td/td/td/telegram/MessagesInfo.cpp
+++ /dev/null
@@ -1,78 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessagesInfo.h"
-
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ForumTopicManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-MessagesInfo get_messages_info(Td *td, DialogId dialog_id,
-                               telegram_api::object_ptr<telegram_api::messages_Messages> &&messages_ptr,
-                               const char *source) {
-  CHECK(messages_ptr != nullptr);
-  LOG(DEBUG) << "Receive result for " << source << ": " << to_string(messages_ptr);
-
-  vector<tl_object_ptr<telegram_api::User>> users;
-  vector<tl_object_ptr<telegram_api::Chat>> chats;
-  vector<tl_object_ptr<telegram_api::ForumTopic>> topics;
-  MessagesInfo result;
-  switch (messages_ptr->get_id()) {
-    case telegram_api::messages_messages::ID: {
-      auto messages = move_tl_object_as<telegram_api::messages_messages>(messages_ptr);
-
-      users = std::move(messages->users_);
-      chats = std::move(messages->chats_);
-      result.total_count = narrow_cast<int32>(messages->messages_.size());
-      result.messages = std::move(messages->messages_);
-      break;
-    }
-    case telegram_api::messages_messagesSlice::ID: {
-      auto messages = move_tl_object_as<telegram_api::messages_messagesSlice>(messages_ptr);
-
-      users = std::move(messages->users_);
-      chats = std::move(messages->chats_);
-      result.total_count = messages->count_;
-      result.messages = std::move(messages->messages_);
-      result.next_rate = messages->next_rate_;
-      // inexact:flags.1?true offset_id_offset:flags.2?int
-      break;
-    }
-    case telegram_api::messages_channelMessages::ID: {
-      auto messages = move_tl_object_as<telegram_api::messages_channelMessages>(messages_ptr);
-
-      users = std::move(messages->users_);
-      chats = std::move(messages->chats_);
-      topics = std::move(messages->topics_);
-      result.total_count = messages->count_;
-      result.messages = std::move(messages->messages_);
-      result.is_channel_messages = true;
-      // inexact:flags.1?true pts:int offset_id_offset:flags.2?int
-      break;
-    }
-    case telegram_api::messages_messagesNotModified::ID:
-      LOG(ERROR) << "Server returned messagesNotModified in response to " << source;
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  td->user_manager_->on_get_users(std::move(users), source);
-  td->chat_manager_->on_get_chats(std::move(chats), source);
-  td->forum_topic_manager_->on_get_forum_topic_infos(dialog_id, std::move(topics), source);
-
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessagesInfo.h b/third-party/td/td/td/telegram/MessagesInfo.h
deleted file mode 100644
index 7fe6e7fa67..0000000000
--- a/third-party/td/td/td/telegram/MessagesInfo.h
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Td;
-
-struct MessagesInfo {
-  vector<telegram_api::object_ptr<telegram_api::Message>> messages;
-  int32 total_count = 0;
-  int32 next_rate = -1;
-  bool is_channel_messages = false;
-};
-
-MessagesInfo get_messages_info(Td *td, DialogId dialog_id,
-                               telegram_api::object_ptr<telegram_api::messages_Messages> &&messages_ptr,
-                               const char *source);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessagesManager.cpp b/third-party/td/td/td/telegram/MessagesManager.cpp
deleted file mode 100644
index a626b9e3e4..0000000000
--- a/third-party/td/td/td/telegram/MessagesManager.cpp
+++ /dev/null
@@ -1,35321 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessagesManager.h"
-
-#include "td/telegram/AccountManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BackgroundInfo.hpp"
-#include "td/telegram/BlockListId.h"
-#include "td/telegram/BusinessBotManageBar.h"
-#include "td/telegram/BusinessConnectionManager.h"
-#include "td/telegram/ChainId.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ChatReactions.hpp"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogAction.h"
-#include "td/telegram/DialogActionBar.h"
-#include "td/telegram/DialogActionManager.h"
-#include "td/telegram/DialogDb.h"
-#include "td/telegram/DialogFilter.h"
-#include "td/telegram/DialogFilterManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogNotificationSettings.hpp"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/DownloadManager.h"
-#include "td/telegram/DraftMessage.h"
-#include "td/telegram/DraftMessage.hpp"
-#include "td/telegram/EmojiStatus.h"
-#include "td/telegram/FactCheck.h"
-#include "td/telegram/FactCheck.hpp"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/ForumTopicManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/InlineQueriesManager.h"
-#include "td/telegram/InputDialogId.h"
-#include "td/telegram/InputMessageText.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageDb.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageEntity.hpp"
-#include "td/telegram/MessageForwardInfo.h"
-#include "td/telegram/MessageForwardInfo.hpp"
-#include "td/telegram/MessageOrigin.hpp"
-#include "td/telegram/MessageQueryManager.h"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/MessageReaction.h"
-#include "td/telegram/MessageReaction.hpp"
-#include "td/telegram/MessageReplyInfo.hpp"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/MissingInvitee.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/NotificationGroupInfo.hpp"
-#include "td/telegram/NotificationGroupType.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/NotificationObjectId.h"
-#include "td/telegram/NotificationSettingsManager.h"
-#include "td/telegram/NotificationSound.h"
-#include "td/telegram/NotificationType.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/PollId.h"
-#include "td/telegram/PromoDataManager.h"
-#include "td/telegram/PublicDialogType.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/ReactionManager.h"
-#include "td/telegram/RepliedMessageInfo.hpp"
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/ReplyMarkup.hpp"
-#include "td/telegram/SavedMessagesManager.h"
-#include "td/telegram/SecretChatsManager.h"
-#include "td/telegram/SponsoredMessageManager.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TopDialogCategory.h"
-#include "td/telegram/TopDialogManager.h"
-#include "td/telegram/TranslationManager.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Usernames.h"
-#include "td/telegram/Version.h"
-#include "td/telegram/WebPageId.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-#include <limits>
-#include <tuple>
-#include <type_traits>
-#include <unordered_set>
-#include <utility>
-
-namespace td {
-
-class GetDialogQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-
- public:
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getPeerDialogs(
-            td_->dialog_manager_->get_input_dialog_peers({dialog_id}, AccessRights::Read)),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPeerDialogs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetDialogQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetDialogQuery");
-    td_->chat_manager_->on_get_chats(std::move(result->chats_), "GetDialogQuery");
-    td_->messages_manager_->on_get_dialogs(FolderId(), std::move(result->dialogs_), -1, std::move(result->messages_),
-                                           PromiseCreator::lambda([actor_id = td_->messages_manager_actor_.get(),
-                                                                   dialog_id = dialog_id_](Result<> result) {
-                                             send_closure(actor_id, &MessagesManager::on_get_dialog_query_finished,
-                                                          dialog_id,
-                                                          result.is_error() ? result.move_as_error() : Status::OK());
-                                           }));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetDialogQuery");
-    td_->messages_manager_->on_get_dialog_query_finished(dialog_id_, std::move(status));
-  }
-};
-
-class GetPinnedDialogsQuery final : public Td::ResultHandler {
-  FolderId folder_id_;
-  Promise<Unit> promise_;
-
- public:
-  explicit GetPinnedDialogsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  NetQueryRef send(FolderId folder_id) {
-    folder_id_ = folder_id;
-    auto query =
-        G()->net_query_creator().create(telegram_api::messages_getPinnedDialogs(folder_id.get()), {{folder_id}});
-    auto result = query.get_weak();
-    send_query(std::move(query));
-    return result;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPinnedDialogs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive pinned chats in " << folder_id_ << ": " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetPinnedDialogsQuery");
-    td_->chat_manager_->on_get_chats(std::move(result->chats_), "GetPinnedDialogsQuery");
-    td_->messages_manager_->on_get_dialogs(folder_id_, std::move(result->dialogs_), -2, std::move(result->messages_),
-                                           std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<tl_object_ptr<telegram_api::InputMessage>> &&message_ids) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getMessages(std::move(message_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, DialogId(), result_ptr.move_as_ok(), "GetMessagesQuery");
-    LOG_IF(ERROR, info.is_channel_messages) << "Receive channel messages in GetMessagesQuery";
-    td_->messages_manager_->on_get_messages(std::move(info.messages), info.is_channel_messages, false,
-                                            std::move(promise_), "GetMessagesQuery");
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "MESSAGE_IDS_EMPTY") {
-      promise_.set_value(Unit());
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChannelMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  MessageId last_new_message_id_;
-  bool can_be_inaccessible_ = false;
-
- public:
-  explicit GetChannelMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, tl_object_ptr<telegram_api::InputChannel> input_channel,
-            vector<tl_object_ptr<telegram_api::InputMessage>> &&message_ids, MessageId last_new_message_id) {
-    channel_id_ = channel_id;
-    last_new_message_id_ = last_new_message_id;
-    can_be_inaccessible_ = message_ids.size() == 1 && message_ids[0]->get_id() != telegram_api::inputMessageID::ID;
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_getMessages(std::move(input_channel), std::move(message_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_getMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, DialogId(channel_id_), result_ptr.move_as_ok(), "GetChannelMessagesQuery");
-    LOG_IF(ERROR, !info.is_channel_messages) << "Receive ordinary messages in GetChannelMessagesQuery";
-    // messages with invalid big identifiers can be received as messageEmpty
-    // bots can receive messageEmpty because of their privacy mode
-    if (last_new_message_id_.is_valid() && !td_->auth_manager_->is_bot()) {
-      vector<MessageId> empty_message_ids;
-      for (auto &message : info.messages) {
-        if (message->get_id() == telegram_api::messageEmpty::ID) {
-          auto message_id = MessageId::get_message_id(message, false);
-          if (message_id.is_valid() && message_id <= last_new_message_id_) {
-            empty_message_ids.push_back(message_id);
-          }
-        }
-      }
-      td_->messages_manager_->on_get_empty_messages(DialogId(channel_id_), empty_message_ids);
-    }
-    const char *source = can_be_inaccessible_ ? "GetRepliedChannelMessageQuery" : "GetChannelMessagesQuery";
-    td_->messages_manager_->get_channel_difference_if_needed(
-        DialogId(channel_id_), std::move(info),
-        PromiseCreator::lambda([actor_id = td_->messages_manager_actor_.get(), source,
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &MessagesManager::on_get_messages, std::move(info.messages),
-                         info.is_channel_messages, false, std::move(promise), source);
-          }
-        }),
-        source);
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "MESSAGE_IDS_EMPTY") {
-      promise_.set_value(Unit());
-      return;
-    }
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetChannelMessagesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetScheduledMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetScheduledMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, tl_object_ptr<telegram_api::InputPeer> &&input_peer, vector<int32> &&message_ids) {
-    dialog_id_ = dialog_id;
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getScheduledMessages(std::move(input_peer), std::move(message_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getScheduledMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, dialog_id_, result_ptr.move_as_ok(), "GetScheduledMessagesQuery");
-    LOG_IF(ERROR, info.is_channel_messages != (dialog_id_.get_type() == DialogType::Channel))
-        << "Receive wrong messages constructor in GetScheduledMessagesQuery";
-    td_->messages_manager_->on_get_messages(std::move(info.messages), info.is_channel_messages, true,
-                                            std::move(promise_), "GetScheduledMessagesQuery");
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "MESSAGE_IDS_EMPTY") {
-      promise_.set_value(Unit());
-      return;
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetScheduledMessagesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateDialogPinnedMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BusinessConnectionId business_connection_id_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-
- public:
-  explicit UpdateDialogPinnedMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id, bool is_unpin,
-            bool disable_notification, bool only_for_self) {
-    business_connection_id_ = business_connection_id;
-    dialog_id_ = dialog_id;
-    message_id_ = message_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(
-        dialog_id, business_connection_id_.is_valid() ? AccessRights::Know : AccessRights::Write);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Can't update pinned message in " << dialog_id;
-      return on_error(Status::Error(400, "Can't update pinned message"));
-    }
-
-    int32 flags = 0;
-    if (disable_notification) {
-      flags |= telegram_api::messages_updatePinnedMessage::SILENT_MASK;
-    }
-    if (is_unpin) {
-      flags |= telegram_api::messages_updatePinnedMessage::UNPIN_MASK;
-    }
-    if (only_for_self) {
-      flags |= telegram_api::messages_updatePinnedMessage::PM_ONESIDE_MASK;
-    }
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::messages_updatePinnedMessage(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                                   std::move(input_peer), message_id.get_server_message_id().get()),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_updatePinnedMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UpdateDialogPinnedMessageQuery: " << to_string(ptr);
-    if (!business_connection_id_.is_empty()) {
-      promise_.set_value(Unit());
-    } else {
-      td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-    }
-  }
-
-  void on_error(Status status) final {
-    if (business_connection_id_.is_empty()) {
-      td_->messages_manager_->on_get_message_error(dialog_id_, message_id_, status, "UpdateDialogPinnedMessageQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ExportChannelMessageLinkQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-  MessageId message_id_;
-  bool for_group_ = false;
-  bool ignore_result_ = false;
-
- public:
-  explicit ExportChannelMessageLinkQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, MessageId message_id, bool for_group, bool ignore_result) {
-    channel_id_ = channel_id;
-    message_id_ = message_id;
-    for_group_ = for_group;
-    ignore_result_ = ignore_result;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    bool for_thread = false;
-    send_query(G()->net_query_creator().create(telegram_api::channels_exportMessageLink(
-        0, for_group, for_thread, std::move(input_channel), message_id.get_server_message_id().get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_exportMessageLink>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ExportChannelMessageLinkQuery: " << to_string(ptr);
-    if (!ignore_result_) {
-      td_->messages_manager_->on_get_public_message_link({DialogId(channel_id_), message_id_}, for_group_,
-                                                         std::move(ptr->link_), std::move(ptr->html_));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!ignore_result_) {
-      td_->messages_manager_->on_get_message_error(DialogId(channel_id_), message_id_, status,
-                                                   "ExportChannelMessageLinkQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetDialogListQuery final : public Td::ResultHandler {
-  FolderId folder_id_;
-  Promise<Unit> promise_;
-
- public:
-  explicit GetDialogListQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(FolderId folder_id, int32 offset_date, ServerMessageId offset_message_id, DialogId offset_dialog_id,
-            int32 limit) {
-    folder_id_ = folder_id;
-    auto input_peer = DialogManager::get_input_peer_force(offset_dialog_id);
-    CHECK(input_peer != nullptr);
-
-    int32 flags =
-        telegram_api::messages_getDialogs::EXCLUDE_PINNED_MASK | telegram_api::messages_getDialogs::FOLDER_ID_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getDialogs(flags, false /*ignored*/, folder_id.get(), offset_date,
-                                          offset_message_id.get(), std::move(input_peer), limit, 0),
-        {{folder_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getDialogs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive chats from chat list of " << folder_id_ << ": " << to_string(ptr);
-    switch (ptr->get_id()) {
-      case telegram_api::messages_dialogs::ID: {
-        auto dialogs = move_tl_object_as<telegram_api::messages_dialogs>(ptr);
-        td_->user_manager_->on_get_users(std::move(dialogs->users_), "GetDialogListQuery");
-        td_->chat_manager_->on_get_chats(std::move(dialogs->chats_), "GetDialogListQuery");
-        td_->messages_manager_->on_get_dialogs(folder_id_, std::move(dialogs->dialogs_),
-                                               narrow_cast<int32>(dialogs->dialogs_.size()),
-                                               std::move(dialogs->messages_), std::move(promise_));
-        break;
-      }
-      case telegram_api::messages_dialogsSlice::ID: {
-        auto dialogs = move_tl_object_as<telegram_api::messages_dialogsSlice>(ptr);
-        td_->user_manager_->on_get_users(std::move(dialogs->users_), "GetDialogListQuery slice");
-        td_->chat_manager_->on_get_chats(std::move(dialogs->chats_), "GetDialogListQuery slice");
-        td_->messages_manager_->on_get_dialogs(folder_id_, std::move(dialogs->dialogs_), max(dialogs->count_, 0),
-                                               std::move(dialogs->messages_), std::move(promise_));
-        break;
-      }
-      case telegram_api::messages_dialogsNotModified::ID:
-        LOG(ERROR) << "Receive " << to_string(ptr);
-        return on_error(Status::Error(500, "Receive wrong server response messages.dialogsNotModified"));
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetDialogMessageByDateQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::message>> promise_;
-  DialogId dialog_id_;
-  int32 date_;
-
- public:
-  explicit GetDialogMessageByDateQuery(Promise<td_api::object_ptr<td_api::message>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int32 date) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    dialog_id_ = dialog_id;
-    date_ = date;
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getHistory(std::move(input_peer), 0, date, -3, 5, 0, 0, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, dialog_id_, result_ptr.move_as_ok(), "GetDialogMessageByDateQuery");
-    td_->messages_manager_->get_channel_difference_if_needed(
-        dialog_id_, std::move(info),
-        PromiseCreator::lambda([actor_id = td_->messages_manager_actor_.get(), dialog_id = dialog_id_, date = date_,
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &MessagesManager::on_get_dialog_message_by_date, dialog_id, date,
-                         std::move(info.messages), std::move(promise));
-          }
-        }),
-        "GetDialogMessageByDateQuery");
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetDialogMessageByDateQuery")) {
-      LOG(ERROR) << "Receive error for GetDialogMessageByDateQuery in " << dialog_id_ << ": " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetHistoryQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  MessageId from_message_id_;
-  MessageId old_last_new_message_id_;
-  int32 offset_;
-  int32 limit_;
-  bool from_the_end_;
-
- public:
-  explicit GetHistoryQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId from_message_id, MessageId old_last_new_message_id, int32 offset,
-            int32 limit) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Can't access the chat"));
-    }
-    CHECK(offset < 0);
-
-    dialog_id_ = dialog_id;
-    from_message_id_ = from_message_id;
-    old_last_new_message_id_ = old_last_new_message_id;
-    offset_ = offset;
-    limit_ = limit;
-    from_the_end_ = false;
-    send_query(G()->net_query_creator().create(telegram_api::messages_getHistory(
-        std::move(input_peer), from_message_id.get_server_message_id().get(), 0, offset, limit, 0, 0, 0)));
-  }
-
-  void send_get_from_the_end(DialogId dialog_id, MessageId old_last_new_message_id, int32 limit) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    dialog_id_ = dialog_id;
-    old_last_new_message_id_ = old_last_new_message_id;
-    offset_ = 0;
-    limit_ = limit;
-    from_the_end_ = true;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getHistory(std::move(input_peer), 0, 0, 0, limit, 0, 0, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, dialog_id_, result_ptr.move_as_ok(), "GetHistoryQuery");
-    td_->messages_manager_->get_channel_difference_if_needed(
-        dialog_id_, std::move(info),
-        PromiseCreator::lambda([actor_id = td_->messages_manager_actor_.get(), dialog_id = dialog_id_,
-                                from_message_id = from_message_id_, old_last_new_message_id = old_last_new_message_id_,
-                                offset = offset_, limit = limit_, from_the_end = from_the_end_,
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            // TODO use info.total_count, info.pts
-            send_closure(actor_id, &MessagesManager::on_get_history, dialog_id, from_message_id,
-                         old_last_new_message_id, offset, limit, from_the_end, std::move(info.messages),
-                         std::move(promise));
-          }
-        }),
-        "GetHistoryQuery");
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetHistoryQuery")) {
-      LOG(ERROR) << "Receive error for GetHistoryQuery in " << dialog_id_ << ": " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadHistoryQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReadHistoryQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId max_message_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_readHistory(std::move(input_peer), max_message_id.get_server_message_id().get()),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_readHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto affected_messages = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ReadHistoryQuery: " << to_string(affected_messages);
-
-    if (affected_messages->pts_count_ > 0) {
-      td_->updates_manager_->add_pending_pts_update(make_tl_object<dummyUpdate>(), affected_messages->pts_,
-                                                    affected_messages->pts_count_, Time::now(), Promise<Unit>(),
-                                                    "read history query");
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReadHistoryQuery")) {
-      LOG(ERROR) << "Receive error for ReadHistoryQuery: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadChannelHistoryQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit ReadChannelHistoryQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, MessageId max_message_id) {
-    channel_id_ = channel_id;
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::channels_readHistory(std::move(input_channel), max_message_id.get_server_message_id().get()),
-        {{DialogId(channel_id)}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::channels_readHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->chat_manager_->on_get_channel_error(channel_id_, status, "ReadChannelHistoryQuery")) {
-      LOG(ERROR) << "Receive error for ReadChannelHistoryQuery: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadDiscussionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReadDiscussionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId top_thread_message_id, MessageId max_message_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_readDiscussion(std::move(input_peer),
-                                              top_thread_message_id.get_server_message_id().get(),
-                                              max_message_id.get_server_message_id().get()),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_readDiscussion>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReadDiscussionQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSearchResultCalendarQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::messageCalendar>> promise_;
-  DialogId dialog_id_;
-  SavedMessagesTopicId saved_messages_topic_id_;
-  MessageId from_message_id_;
-  MessageSearchFilter filter_;
-
- public:
-  explicit GetSearchResultCalendarQuery(Promise<td_api::object_ptr<td_api::messageCalendar>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, MessageId from_message_id,
-            MessageSearchFilter filter) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    dialog_id_ = dialog_id;
-    saved_messages_topic_id_ = saved_messages_topic_id;
-    from_message_id_ = from_message_id;
-    filter_ = filter;
-
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::InputPeer> saved_input_peer;
-    if (saved_messages_topic_id.is_valid()) {
-      flags |= telegram_api::messages_getSearchResultsCalendar::SAVED_PEER_ID_MASK;
-      saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-      CHECK(saved_input_peer != nullptr);
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_getSearchResultsCalendar(
-        flags, std::move(input_peer), std::move(saved_input_peer), get_input_messages_filter(filter),
-        from_message_id.get_server_message_id().get(), 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSearchResultsCalendar>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetSearchResultCalendarQuery: " << to_string(result);
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetSearchResultCalendarQuery");
-    td_->chat_manager_->on_get_chats(std::move(result->chats_), "GetSearchResultCalendarQuery");
-
-    // unused: inexact:flags.0?true min_date:int min_msg_id:int offset_id_offset:flags.1?int
-
-    MessagesInfo info;
-    info.messages = std::move(result->messages_);
-    info.total_count = result->count_;
-    info.is_channel_messages = dialog_id_.get_type() == DialogType::Channel;
-
-    td_->messages_manager_->get_channel_difference_if_needed(
-        dialog_id_, std::move(info),
-        PromiseCreator::lambda([actor_id = td_->messages_manager_actor_.get(), dialog_id = dialog_id_,
-                                saved_messages_topic_id = saved_messages_topic_id_, from_message_id = from_message_id_,
-                                filter = filter_, periods = std::move(result->periods_),
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &MessagesManager::on_get_message_search_result_calendar, dialog_id,
-                         saved_messages_topic_id, from_message_id, filter, info.total_count, std::move(info.messages),
-                         std::move(periods), std::move(promise));
-          }
-        }),
-        "GetSearchResultCalendarQuery");
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetSearchResultCalendarQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SearchMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  SavedMessagesTopicId saved_messages_topic_id_;
-  string query_;
-  DialogId sender_dialog_id_;
-  MessageId from_message_id_;
-  int32 offset_;
-  int32 limit_;
-  MessageSearchFilter filter_;
-  MessageId top_thread_message_id_;
-  ReactionType tag_;
-  int64 random_id_;
-  bool handle_errors_ = true;
-
- public:
-  explicit SearchMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, const string &query,
-            DialogId sender_dialog_id, MessageId from_message_id, int32 offset, int32 limit, MessageSearchFilter filter,
-            MessageId top_thread_message_id, const ReactionType &tag, int64 random_id) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    dialog_id_ = dialog_id;
-    saved_messages_topic_id_ = saved_messages_topic_id;
-    query_ = query;
-    sender_dialog_id_ = sender_dialog_id;
-    from_message_id_ = from_message_id;
-    offset_ = offset;
-    limit_ = limit;
-    filter_ = filter;
-    top_thread_message_id_ = top_thread_message_id;
-    tag_ = tag;
-    random_id_ = random_id;
-
-    auto top_msg_id = top_thread_message_id.get_server_message_id().get();
-    auto offset_id = from_message_id.get_server_message_id().get();
-    if (filter == MessageSearchFilter::UnreadMention) {
-      CHECK(!saved_messages_topic_id.is_valid());
-      CHECK(tag_.is_empty());
-      int32 flags = 0;
-      if (top_thread_message_id.is_valid()) {
-        flags |= telegram_api::messages_getUnreadMentions::TOP_MSG_ID_MASK;
-      }
-      send_query(G()->net_query_creator().create(telegram_api::messages_getUnreadMentions(
-          flags, std::move(input_peer), top_msg_id, offset_id, offset, limit, std::numeric_limits<int32>::max(), 0)));
-    } else if (filter == MessageSearchFilter::UnreadReaction) {
-      CHECK(!saved_messages_topic_id.is_valid());
-      CHECK(tag_.is_empty());
-      int32 flags = 0;
-      if (top_thread_message_id.is_valid()) {
-        flags |= telegram_api::messages_getUnreadReactions::TOP_MSG_ID_MASK;
-      }
-      send_query(G()->net_query_creator().create(telegram_api::messages_getUnreadReactions(
-          flags, std::move(input_peer), top_msg_id, offset_id, offset, limit, std::numeric_limits<int32>::max(), 0)));
-    } else if (top_thread_message_id.is_valid() && query.empty() && !sender_dialog_id.is_valid() &&
-               filter == MessageSearchFilter::Empty) {
-      CHECK(!saved_messages_topic_id.is_valid());
-      CHECK(tag_.is_empty());
-      handle_errors_ = dialog_id.get_type() != DialogType::Channel ||
-                       !td_->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id());
-      send_query(G()->net_query_creator().create(telegram_api::messages_getReplies(
-          std::move(input_peer), top_msg_id, offset_id, 0, offset, limit, std::numeric_limits<int32>::max(), 0, 0)));
-    } else {
-      int32 flags = 0;
-      tl_object_ptr<telegram_api::InputPeer> sender_input_peer;
-      if (sender_dialog_id.is_valid()) {
-        flags |= telegram_api::messages_search::FROM_ID_MASK;
-        sender_input_peer = td_->dialog_manager_->get_input_peer(sender_dialog_id, AccessRights::Know);
-        CHECK(sender_input_peer != nullptr);
-      }
-      tl_object_ptr<telegram_api::InputPeer> saved_input_peer;
-      if (saved_messages_topic_id.is_valid()) {
-        flags |= telegram_api::messages_search::SAVED_PEER_ID_MASK;
-        saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-        CHECK(saved_input_peer != nullptr);
-      }
-      vector<telegram_api::object_ptr<telegram_api::Reaction>> saved_reactions;
-      if (!tag.is_empty()) {
-        flags |= telegram_api::messages_search::SAVED_REACTION_MASK;
-        saved_reactions.push_back(tag.get_input_reaction());
-      }
-      if (top_thread_message_id.is_valid()) {
-        flags |= telegram_api::messages_search::TOP_MSG_ID_MASK;
-      }
-
-      send_query(G()->net_query_creator().create(telegram_api::messages_search(
-          flags, std::move(input_peer), query, std::move(sender_input_peer), std::move(saved_input_peer),
-          std::move(saved_reactions), top_msg_id, get_input_messages_filter(filter), 0,
-          std::numeric_limits<int32>::max(), offset_id, offset, limit, std::numeric_limits<int32>::max(), 0, 0)));
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_getUnreadMentions::ReturnType,
-                               telegram_api::messages_search::ReturnType>::value,
-                  "");
-    static_assert(std::is_same<telegram_api::messages_getUnreadReactions::ReturnType,
-                               telegram_api::messages_search::ReturnType>::value,
-                  "");
-    static_assert(
-        std::is_same<telegram_api::messages_getReplies::ReturnType, telegram_api::messages_search::ReturnType>::value,
-        "");
-    auto result_ptr = fetch_result<telegram_api::messages_search>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, dialog_id_, result_ptr.move_as_ok(), "SearchMessagesQuery");
-    td_->messages_manager_->get_channel_difference_if_needed(
-        dialog_id_, std::move(info),
-        PromiseCreator::lambda(
-            [actor_id = td_->messages_manager_actor_.get(), dialog_id = dialog_id_,
-             saved_messages_topic_id = saved_messages_topic_id_, query = std::move(query_),
-             sender_dialog_id = sender_dialog_id_, from_message_id = from_message_id_, offset = offset_, limit = limit_,
-             filter = filter_, top_thread_message_id = top_thread_message_id_, tag = std::move(tag_),
-             random_id = random_id_, promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-              if (result.is_error()) {
-                promise.set_error(result.move_as_error());
-              } else {
-                auto info = result.move_as_ok();
-                send_closure(actor_id, &MessagesManager::on_get_dialog_messages_search_result, dialog_id,
-                             saved_messages_topic_id, query, sender_dialog_id, from_message_id, offset, limit, filter,
-                             top_thread_message_id, tag, random_id, info.total_count, std::move(info.messages),
-                             std::move(promise));
-              }
-            }),
-        "SearchMessagesQuery");
-  }
-
-  void on_error(Status status) final {
-    if (handle_errors_) {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SearchMessagesQuery");
-    }
-    td_->messages_manager_->on_failed_dialog_messages_search(dialog_id_, random_id_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SearchCallMessagesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundMessages>> promise_;
-  MessageId from_message_id_;
-  int32 limit_;
-  MessageSearchFilter filter_;
-
- public:
-  explicit SearchCallMessagesQuery(Promise<td_api::object_ptr<td_api::foundMessages>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(MessageId from_message_id, int32 limit, MessageSearchFilter filter) {
-    from_message_id_ = from_message_id;
-    limit_ = limit;
-    filter_ = filter;
-
-    auto offset_id = from_message_id.get_server_message_id().get();
-    send_query(G()->net_query_creator().create(telegram_api::messages_search(
-        0, telegram_api::make_object<telegram_api::inputPeerEmpty>(), string(), nullptr, nullptr,
-        vector<telegram_api::object_ptr<telegram_api::Reaction>>(), 0, get_input_messages_filter(filter), 0,
-        std::numeric_limits<int32>::max(), offset_id, 0, limit, std::numeric_limits<int32>::max(), 0, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_search>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto info = get_messages_info(td_, DialogId(), result_ptr.move_as_ok(), "SearchCallMessagesQuery");
-    td_->messages_manager_->get_channel_differences_if_needed(
-        std::move(info),
-        PromiseCreator::lambda([actor_id = td_->messages_manager_actor_.get(), from_message_id = from_message_id_,
-                                limit = limit_, filter = filter_,
-                                promise = std::move(promise_)](Result<MessagesInfo> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            auto info = result.move_as_ok();
-            send_closure(actor_id, &MessagesManager::on_get_call_messages, from_message_id, limit, filter,
-                         info.total_count, std::move(info.messages), std::move(promise));
-          }
-        }),
-        "SearchCallMessagesQuery");
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSearchResultPositionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::messagePositions>> promise_;
-  DialogId dialog_id_;
-  SavedMessagesTopicId saved_messages_topic_id_;
-  MessageSearchFilter filter_;
-
- public:
-  explicit GetSearchResultPositionsQuery(Promise<td_api::object_ptr<td_api::messagePositions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, MessageSearchFilter filter,
-            MessageId from_message_id, int32 limit) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Can't access the chat"));
-    }
-    dialog_id_ = dialog_id;
-    saved_messages_topic_id_ = saved_messages_topic_id;
-    filter_ = filter;
-
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::InputPeer> saved_input_peer;
-    if (saved_messages_topic_id.is_valid()) {
-      flags |= telegram_api::messages_getSearchResultsPositions::SAVED_PEER_ID_MASK;
-      saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-      CHECK(saved_input_peer != nullptr);
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_getSearchResultsPositions(
-        flags, std::move(input_peer), std::move(saved_input_peer), get_input_messages_filter(filter),
-        from_message_id.get_server_message_id().get(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSearchResultsPositions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->messages_manager_->on_get_dialog_sparse_message_positions(dialog_id_, saved_messages_topic_id_, filter_,
-                                                                   result_ptr.move_as_ok(), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetSearchResultPositionsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSearchCountersQuery final : public Td::ResultHandler {
-  Promise<int32> promise_;
-  DialogId dialog_id_;
-  SavedMessagesTopicId saved_messages_topic_id_;
-  MessageSearchFilter filter_;
-
- public:
-  explicit GetSearchCountersQuery(Promise<int32> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, MessageSearchFilter filter) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    dialog_id_ = dialog_id;
-    saved_messages_topic_id_ = saved_messages_topic_id;
-    filter_ = filter;
-
-    CHECK(filter != MessageSearchFilter::Empty);
-    CHECK(filter != MessageSearchFilter::UnreadMention);
-    CHECK(filter != MessageSearchFilter::FailedToSend);
-    CHECK(filter != MessageSearchFilter::UnreadReaction);
-    vector<telegram_api::object_ptr<telegram_api::MessagesFilter>> filters;
-    filters.push_back(get_input_messages_filter(filter));
-
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::InputPeer> saved_input_peer;
-    if (saved_messages_topic_id.is_valid()) {
-      flags |= telegram_api::messages_getSearchCounters::SAVED_PEER_ID_MASK;
-      saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-      CHECK(saved_input_peer != nullptr);
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_getSearchCounters(
-        flags, std::move(input_peer), std::move(saved_input_peer), 0, std::move(filters))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSearchCounters>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    if (result.size() != 1 || result[0]->filter_->get_id() != get_input_messages_filter(filter_)->get_id()) {
-      LOG(ERROR) << "Receive unexpected response for get message count in " << dialog_id_ << " with filter " << filter_
-                 << ": " << to_string(result);
-      return on_error(Status::Error(500, "Receive wrong response"));
-    }
-
-    td_->messages_manager_->on_get_dialog_message_count(dialog_id_, saved_messages_topic_id_, filter_,
-                                                        result[0]->count_, std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetSearchCountersQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetAllScheduledMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  uint32 generation_;
-
- public:
-  explicit GetAllScheduledMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int64 hash, uint32 generation) {
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    dialog_id_ = dialog_id;
-    generation_ = generation;
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getScheduledHistory(std::move(input_peer), hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getScheduledHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (result_ptr.ok()->get_id() == telegram_api::messages_messagesNotModified::ID) {
-      td_->messages_manager_->on_get_scheduled_server_messages(dialog_id_, generation_, Auto(), true);
-    } else {
-      auto info = get_messages_info(td_, dialog_id_, result_ptr.move_as_ok(), "GetAllScheduledMessagesQuery");
-      td_->messages_manager_->on_get_scheduled_server_messages(dialog_id_, generation_, std::move(info.messages),
-                                                               false);
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetAllScheduledMessagesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendMessageQuery final : public Td::ResultHandler {
-  int64 random_id_;
-  DialogId dialog_id_;
-
- public:
-  void send(int32 flags, DialogId dialog_id, tl_object_ptr<telegram_api::InputPeer> as_input_peer,
-            const MessageInputReplyTo &input_reply_to, MessageId top_thread_message_id, int32 schedule_date,
-            MessageEffectId effect_id, int64 paid_message_star_count,
-            tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup,
-            vector<tl_object_ptr<telegram_api::MessageEntity>> &&entities, const string &text, bool is_copy,
-            int64 random_id, NetQueryRef *send_query_ref) {
-    random_id_ = random_id;
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no write access to the chat"));
-    }
-
-    auto reply_to = input_reply_to.get_input_reply_to(td_, top_thread_message_id);
-
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMessage::REPLY_TO_MASK;
-    }
-    if (!entities.empty()) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_ENTITIES;
-    }
-    if (as_input_peer != nullptr) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_SEND_AS;
-    }
-    if (false) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_SCHEDULE_DATE;
-      schedule_date = G()->unix_time() + 35;
-    }
-
-    auto query = G()->net_query_creator().create(
-        telegram_api::messages_sendMessage(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                           false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                           false /*ignored*/, std::move(input_peer), std::move(reply_to), text,
-                                           random_id, std::move(reply_markup), std::move(entities), schedule_date,
-                                           std::move(as_input_peer), nullptr, effect_id.get(), paid_message_star_count),
-        {{dialog_id, MessageContentType::Text},
-         {dialog_id, is_copy ? MessageContentType::Photo : MessageContentType::Text}});
-    if (td_->option_manager_->get_option_boolean("use_quick_ack")) {
-      query->quick_ack_promise_ = PromiseCreator::lambda([random_id](Result<Unit> result) {
-        if (result.is_ok()) {
-          send_closure(G()->messages_manager(), &MessagesManager::on_send_message_get_quick_ack, random_id);
-        }
-      });
-    }
-    *send_query_ref = query.get_weak();
-    send_query(std::move(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendMessageQuery for " << random_id_ << ": " << to_string(ptr);
-
-    auto constructor_id = ptr->get_id();
-    if (constructor_id != telegram_api::updateShortSentMessage::ID) {
-      td_->messages_manager_->check_send_message_result(random_id_, dialog_id_, ptr.get(), "SendMessage");
-      return td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-    }
-    auto sent_message = move_tl_object_as<telegram_api::updateShortSentMessage>(ptr);
-    td_->messages_manager_->on_update_sent_text_message(random_id_, std::move(sent_message->media_),
-                                                        std::move(sent_message->entities_));
-
-    auto message_id = MessageId(ServerMessageId(sent_message->id_));
-    auto ttl_period = sent_message->ttl_period_;
-    auto update = make_tl_object<updateSentMessage>(random_id_, message_id, sent_message->date_, ttl_period);
-    if (dialog_id_.get_type() == DialogType::Channel) {
-      td_->messages_manager_->add_pending_channel_update(dialog_id_, std::move(update), sent_message->pts_,
-                                                         sent_message->pts_count_, Promise<Unit>(),
-                                                         "send message actor");
-      return;
-    }
-
-    td_->updates_manager_->add_pending_pts_update(std::move(update), sent_message->pts_, sent_message->pts_count_,
-                                                  Time::now(), Promise<Unit>(), "send message actor");
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendMessage: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendMessageQuery");
-    td_->messages_manager_->on_send_message_fail(random_id_, std::move(status));
-  }
-};
-
-class StartBotQuery final : public Td::ResultHandler {
-  int64 random_id_;
-  DialogId dialog_id_;
-
- public:
-  NetQueryRef send(tl_object_ptr<telegram_api::InputUser> bot_input_user, DialogId dialog_id,
-                   tl_object_ptr<telegram_api::InputPeer> input_peer, const string &parameter, int64 random_id) {
-    CHECK(bot_input_user != nullptr);
-    CHECK(input_peer != nullptr);
-    random_id_ = random_id;
-    dialog_id_ = dialog_id;
-
-    auto query = G()->net_query_creator().create(
-        telegram_api::messages_startBot(std::move(bot_input_user), std::move(input_peer), random_id, parameter),
-        {{dialog_id, MessageContentType::Text}, {dialog_id, MessageContentType::Photo}});
-    if (td_->option_manager_->get_option_boolean("use_quick_ack")) {
-      query->quick_ack_promise_ = PromiseCreator::lambda([random_id](Result<Unit> result) {
-        if (result.is_ok()) {
-          send_closure(G()->messages_manager(), &MessagesManager::on_send_message_get_quick_ack, random_id);
-        }
-      });
-    }
-    auto send_query_ref = query.get_weak();
-    send_query(std::move(query));
-    return send_query_ref;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_startBot>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for StartBotQuery for " << random_id_ << ": " << to_string(ptr);
-    // Result may contain messageActionChatAddUser
-    // td_->messages_manager_->check_send_message_result(random_id_, dialog_id_, ptr.get(), "StartBot");
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for StartBotQuery: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, message should be re-sent after restart
-      return;
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "StartBotQuery");
-    td_->messages_manager_->on_send_message_fail(random_id_, std::move(status));
-  }
-};
-
-class SendInlineBotResultQuery final : public Td::ResultHandler {
-  int64 random_id_;
-  DialogId dialog_id_;
-
- public:
-  NetQueryRef send(int32 flags, DialogId dialog_id, tl_object_ptr<telegram_api::InputPeer> as_input_peer,
-                   const MessageInputReplyTo &input_reply_to, MessageId top_thread_message_id, int32 schedule_date,
-                   int64 paid_message_star_count, int64 random_id, int64 query_id, const string &result_id) {
-    random_id_ = random_id;
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    auto reply_to = input_reply_to.get_input_reply_to(td_, top_thread_message_id);
-
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendInlineBotResult::REPLY_TO_MASK;
-    }
-    if (as_input_peer != nullptr) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_SEND_AS;
-    }
-
-    auto query = G()->net_query_creator().create(
-        telegram_api::messages_sendInlineBotResult(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                                   false /*ignored*/, std::move(input_peer), std::move(reply_to),
-                                                   random_id, query_id, result_id, schedule_date,
-                                                   std::move(as_input_peer), nullptr, paid_message_star_count),
-        {{dialog_id, MessageContentType::Text}, {dialog_id, MessageContentType::Photo}});
-    auto send_query_ref = query.get_weak();
-    send_query(std::move(query));
-    return send_query_ref;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendInlineBotResult>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendInlineBotResultQuery for " << random_id_ << ": " << to_string(ptr);
-    td_->messages_manager_->check_send_message_result(random_id_, dialog_id_, ptr.get(), "SendInlineBotResult");
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendInlineBotResultQuery: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendInlineBotResultQuery");
-    td_->messages_manager_->on_send_message_fail(random_id_, std::move(status));
-  }
-};
-
-class SendMultiMediaQuery final : public Td::ResultHandler {
-  vector<FileUploadId> file_upload_ids_;
-  vector<string> file_references_;
-  vector<FileId> cover_file_ids_;
-  vector<string> cover_file_references_;
-  vector<int64> random_ids_;
-  DialogId dialog_id_;
-
- public:
-  void send(int32 flags, DialogId dialog_id, tl_object_ptr<telegram_api::InputPeer> as_input_peer,
-            const MessageInputReplyTo &input_reply_to, MessageId top_thread_message_id, int32 schedule_date,
-            MessageEffectId effect_id, vector<FileUploadId> file_upload_ids, vector<FileId> cover_file_ids,
-            vector<tl_object_ptr<telegram_api::inputSingleMedia>> &&input_single_media, bool is_copy,
-            int64 paid_message_star_count) {
-    for (auto &single_media : input_single_media) {
-      random_ids_.push_back(single_media->random_id_);
-      CHECK(!FileManager::extract_was_uploaded(single_media->media_));
-      file_references_.push_back(FileManager::extract_file_reference(single_media->media_));
-      cover_file_references_.push_back(FileManager::extract_cover_file_reference(single_media->media_));
-    }
-    dialog_id_ = dialog_id;
-    file_upload_ids_ = std::move(file_upload_ids);
-    cover_file_ids_ = std::move(cover_file_ids);
-    CHECK(file_upload_ids_.size() == random_ids_.size());
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no write access to the chat"));
-    }
-
-    auto reply_to = input_reply_to.get_input_reply_to(td_, top_thread_message_id);
-
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMultiMedia::REPLY_TO_MASK;
-    }
-    if (as_input_peer != nullptr) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_SEND_AS;
-    }
-
-    // no quick ack, because file reference errors are very likely to happen
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendMultiMedia(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                              false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                              false /*ignored*/, std::move(input_peer), std::move(reply_to),
-                                              std::move(input_single_media), schedule_date, std::move(as_input_peer),
-                                              nullptr, effect_id.get(), paid_message_star_count),
-        {{dialog_id, is_copy ? MessageContentType::Text : MessageContentType::Photo},
-         {dialog_id, MessageContentType::Photo}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMultiMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendMultiMedia for " << random_ids_ << ": " << to_string(ptr);
-
-    auto sent_random_ids = UpdatesManager::get_sent_messages_random_ids(ptr.get());
-    bool is_result_wrong = false;
-    auto sent_random_ids_size = sent_random_ids.size();
-    for (auto &random_id : random_ids_) {
-      auto it = sent_random_ids.find(random_id);
-      if (it == sent_random_ids.end()) {
-        if (random_ids_.size() == 1) {
-          is_result_wrong = true;
-        }
-        td_->messages_manager_->on_send_message_fail(random_id, Status::Error(400, "Message was not sent"));
-      } else {
-        sent_random_ids.erase(it);
-      }
-    }
-    if (!sent_random_ids.empty()) {
-      is_result_wrong = true;
-    }
-    if (!is_result_wrong) {
-      auto sent_messages = UpdatesManager::get_new_messages(ptr.get());
-      if (sent_random_ids_size != sent_messages.size()) {
-        is_result_wrong = true;
-      }
-      for (auto &sent_message : sent_messages) {
-        if (DialogId::get_message_dialog_id(sent_message.first) != dialog_id_) {
-          is_result_wrong = true;
-        }
-      }
-    }
-    if (is_result_wrong) {
-      LOG(ERROR) << "Receive wrong result for SendMultiMediaQuery with random_ids " << random_ids_ << " to "
-                 << dialog_id_ << ": " << oneline(to_string(ptr));
-      td_->updates_manager_->schedule_get_difference("Wrong sendMultiMedia result");
-    }
-
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-  }
-
-  void on_error(Status status) final {
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    LOG(INFO) << "Receive error for SendMultiMedia: " << status;
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      auto source = FileReferenceManager::get_file_reference_error_source(status);
-      auto pos = source.pos_;
-      if (source.is_cover_) {
-        if (1 <= pos && pos <= cover_file_ids_.size() && cover_file_ids_[pos - 1].is_valid()) {
-          VLOG(file_references) << "Receive " << status << " for cover " << cover_file_ids_[pos - 1];
-          td_->file_manager_->delete_file_reference(cover_file_ids_[pos - 1], cover_file_references_[pos - 1]);
-          td_->messages_manager_->on_send_media_group_file_reference_error(dialog_id_, std::move(random_ids_));
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error " << status << ", but cover_file_ids = " << cover_file_ids_
-                     << ", message_count = " << cover_file_ids_.size();
-        }
-      } else {
-        if (1 <= pos && pos <= file_upload_ids_.size() && file_upload_ids_[pos - 1].is_valid()) {
-          VLOG(file_references) << "Receive " << status << " for " << file_upload_ids_[pos - 1];
-          td_->file_manager_->delete_file_reference(file_upload_ids_[pos - 1].get_file_id(), file_references_[pos - 1]);
-          td_->messages_manager_->on_send_media_group_file_reference_error(dialog_id_, std::move(random_ids_));
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error " << status << ", but file_upload_ids = " << file_upload_ids_
-                     << ", message_count = " << file_upload_ids_.size();
-        }
-      }
-    }
-    auto star_count = MessagesManager::get_required_paid_message_star_count(status.code(), status.message());
-    if (star_count > 0) {
-      status = Status::Error(status.code(), PSLICE() << "ALLOW_PAYMENT_REQUIRED_" << (star_count / random_ids_.size()));
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendMultiMediaQuery");
-    for (auto &random_id : random_ids_) {
-      td_->messages_manager_->on_send_message_fail(random_id, status.clone());
-    }
-  }
-};
-
-class SendMediaQuery final : public Td::ResultHandler {
-  int64 random_id_ = 0;
-  vector<FileUploadId> file_upload_ids_;
-  vector<FileUploadId> thumbnail_file_upload_ids_;
-  vector<FileId> cover_file_ids_;
-  vector<string> cover_file_references_;
-  DialogId dialog_id_;
-  vector<string> file_references_;
-  bool was_uploaded_ = false;
-  bool was_thumbnail_uploaded_ = false;
-
- public:
-  void send(vector<FileUploadId> file_upload_ids, vector<FileUploadId> thumbnail_file_upload_ids,
-            vector<FileId> cover_file_ids, int32 flags, DialogId dialog_id,
-            tl_object_ptr<telegram_api::InputPeer> as_input_peer, const MessageInputReplyTo &input_reply_to,
-            MessageId top_thread_message_id, int32 schedule_date, MessageEffectId effect_id,
-            int64 paid_message_star_count, tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup,
-            vector<tl_object_ptr<telegram_api::MessageEntity>> &&entities, const string &text,
-            tl_object_ptr<telegram_api::InputMedia> &&input_media, MessageContentType content_type, bool is_copy,
-            int64 random_id, NetQueryRef *send_query_ref) {
-    random_id_ = random_id;
-    file_upload_ids_ = std::move(file_upload_ids);
-    thumbnail_file_upload_ids_ = std::move(thumbnail_file_upload_ids);
-    cover_file_ids_ = std::move(cover_file_ids);
-    dialog_id_ = dialog_id;
-    file_references_ = FileManager::extract_file_references(input_media);
-    cover_file_references_ = FileManager::extract_cover_file_references(input_media);
-    was_uploaded_ = FileManager::extract_was_uploaded(input_media);
-    was_thumbnail_uploaded_ = FileManager::extract_was_thumbnail_uploaded(input_media);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no write access to the chat"));
-    }
-
-    auto reply_to = input_reply_to.get_input_reply_to(td_, top_thread_message_id);
-
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMedia::REPLY_TO_MASK;
-    }
-    if (!entities.empty()) {
-      flags |= telegram_api::messages_sendMedia::ENTITIES_MASK;
-    }
-    if (as_input_peer != nullptr) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_SEND_AS;
-    }
-
-    auto query = G()->net_query_creator().create(
-        telegram_api::messages_sendMedia(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                         false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                         std::move(input_peer), std::move(reply_to), std::move(input_media), text,
-                                         random_id, std::move(reply_markup), std::move(entities), schedule_date,
-                                         std::move(as_input_peer), nullptr, effect_id.get(), paid_message_star_count),
-        {{dialog_id, content_type}, {dialog_id, is_copy ? MessageContentType::Text : content_type}});
-    if (td_->option_manager_->get_option_boolean("use_quick_ack") && was_uploaded_) {
-      query->quick_ack_promise_ = PromiseCreator::lambda([random_id](Result<Unit> result) {
-        if (result.is_ok()) {
-          send_closure(G()->messages_manager(), &MessagesManager::on_send_message_get_quick_ack, random_id);
-        }
-      });
-    }
-    *send_query_ref = query.get_weak();
-    send_query(std::move(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendMediaQuery for " << random_id_ << ": " << to_string(ptr);
-    td_->messages_manager_->check_send_message_result(random_id_, dialog_id_, ptr.get(), "SendMedia");
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-
-    if (was_thumbnail_uploaded_) {
-      CHECK(thumbnail_file_upload_ids_.size() == 1u);
-      CHECK(thumbnail_file_upload_ids_[0].is_valid());
-      // always delete partial remote location for the thumbnail, because it can't be reused anyway
-      td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_ids_[0]);
-    }
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendMedia: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      auto source = FileReferenceManager::get_file_reference_error_source(status);
-      auto pos = source.pos_;
-      if (pos > 0) {
-        pos--;
-      }
-      if (source.is_cover_) {
-        if (pos < cover_file_ids_.size() && pos < cover_file_references_.size()) {
-          VLOG(file_references) << "Receive " << status << " for cover " << cover_file_ids_[pos];
-          td_->file_manager_->delete_file_reference(cover_file_ids_[pos], cover_file_references_[pos]);
-          td_->messages_manager_->on_send_message_file_error(random_id_, pos, {-1});
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error " << pos << ", but cover_file_ids = " << cover_file_ids_
-                     << ", file_references = " << cover_file_references_;
-        }
-      } else {
-        if (pos < file_upload_ids_.size() && pos < file_references_.size() && !was_uploaded_) {
-          VLOG(file_references) << "Receive " << status << " for " << file_upload_ids_[pos];
-          td_->file_manager_->delete_file_reference(file_upload_ids_[pos].get_file_id(), file_references_[pos]);
-          td_->messages_manager_->on_send_message_file_error(random_id_, pos, {-1});
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error " << pos << ", but file_upload_ids = " << file_upload_ids_
-                     << ", was_uploaded = " << was_uploaded_ << ", file_references = " << file_references_;
-        }
-      }
-    }
-    if (was_uploaded_) {
-      if (was_thumbnail_uploaded_) {
-        CHECK(thumbnail_file_upload_ids_.size() == 1u);
-        CHECK(thumbnail_file_upload_ids_[0].is_valid());
-        // always delete partial remote location for the thumbnail, because it can't be reused anyway
-        td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_ids_[0]);
-      }
-
-      CHECK(file_upload_ids_.size() == 1u);
-      CHECK(file_upload_ids_[0].is_valid());
-      auto bad_parts = FileManager::get_missing_file_parts(status);
-      if (!bad_parts.empty()) {
-        return td_->messages_manager_->on_send_message_file_error(random_id_, 0, std::move(bad_parts));
-      } else {
-        td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_ids_[0], status);
-      }
-    }
-
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendMediaQuery");
-    td_->messages_manager_->on_send_message_fail(random_id_, std::move(status));
-  }
-};
-
-class UploadMediaQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  MessageId message_id_;
-  int32 media_pos_ = -1;
-  FileUploadId file_upload_id_;
-  FileUploadId thumbnail_file_upload_id_;
-  FileId cover_file_id_;
-  string file_reference_;
-  string cover_file_reference_;
-  bool was_uploaded_ = false;
-  bool was_thumbnail_uploaded_ = false;
-
- public:
-  void send(DialogId dialog_id, MessageId message_id, int32 media_pos, FileUploadId file_upload_id,
-            FileUploadId thumbnail_file_upload_id, FileId cover_file_id,
-            telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-    CHECK(input_media != nullptr);
-    dialog_id_ = dialog_id;
-    message_id_ = message_id;
-    media_pos_ = media_pos;
-    file_upload_id_ = file_upload_id;
-    thumbnail_file_upload_id_ = thumbnail_file_upload_id;
-    cover_file_id_ = cover_file_id;
-    file_reference_ = FileManager::extract_file_reference(input_media);
-    cover_file_reference_ = FileManager::extract_cover_file_reference(input_media);
-    was_uploaded_ = FileManager::extract_was_uploaded(input_media);
-    was_thumbnail_uploaded_ = FileManager::extract_was_thumbnail_uploaded(input_media);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no write access to the chat"));
-    }
-
-    int32 flags = 0;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_uploadMedia(flags, string(), std::move(input_peer), std::move(input_media))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_uploadMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (was_thumbnail_uploaded_) {
-      CHECK(thumbnail_file_upload_id_.is_valid());
-      // always delete partial remote location for the thumbnail, because it can't be reused anyway
-      td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id_);
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UploadMediaQuery for " << message_id_ << " in " << dialog_id_ << ": "
-              << to_string(ptr);
-    td_->messages_manager_->on_upload_message_media_success(dialog_id_, message_id_, media_pos_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for UploadMediaQuery for " << message_id_ << " in " << dialog_id_ << ": " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "UploadMediaQuery");
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      auto source = FileReferenceManager::get_file_reference_error_source(status);
-      if (source.is_cover_ && source.pos_ <= 1 && cover_file_id_.is_valid()) {
-        VLOG(file_references) << "Receive " << status << " for cover " << cover_file_id_;
-        td_->file_manager_->delete_file_reference(cover_file_id_, cover_file_reference_);
-        td_->messages_manager_->on_upload_message_media_file_parts_missing(dialog_id_, message_id_, media_pos_, {-1});
-        return;
-      } else {
-        LOG(ERROR) << "Receive file reference error for UploadMediaQuery";
-      }
-    }
-    if (was_uploaded_) {
-      if (was_thumbnail_uploaded_) {
-        CHECK(thumbnail_file_upload_id_.is_valid());
-        // always delete partial remote location for the thumbnail, because it can't be reused anyway
-        td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id_);
-      }
-
-      CHECK(file_upload_id_.is_valid());
-      auto bad_parts = FileManager::get_missing_file_parts(status);
-      if (!bad_parts.empty()) {
-        td_->messages_manager_->on_upload_message_media_file_parts_missing(dialog_id_, message_id_, media_pos_,
-                                                                           std::move(bad_parts));
-        return;
-      } else {
-        td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id_, status);
-      }
-    }
-    td_->messages_manager_->on_upload_message_media_fail(dialog_id_, message_id_, media_pos_, std::move(status));
-  }
-};
-
-class SendScheduledMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SendScheduledMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId message_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Edit);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 server_message_id = message_id.get_scheduled_server_message_id().get();
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendScheduledMessages(std::move(input_peer), {server_message_id}),
-        {{dialog_id, MessageContentType::Text}, {dialog_id, MessageContentType::Photo}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendScheduledMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendScheduledMessageQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendScheduledMessageQuery: " << status;
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendScheduledMessageQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditMessageQuery final : public Td::ResultHandler {
-  Promise<int32> promise_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-  bool is_media_;
-
- public:
-  explicit EditMessageQuery(Promise<Unit> &&promise) {
-    promise_ = PromiseCreator::lambda([promise = std::move(promise)](Result<int32> result) mutable {
-      if (result.is_error()) {
-        promise.set_error(result.move_as_error());
-      } else {
-        promise.set_value(Unit());
-      }
-    });
-  }
-  explicit EditMessageQuery(Promise<int32> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 flags, DialogId dialog_id, MessageId message_id, const string &text,
-            vector<tl_object_ptr<telegram_api::MessageEntity>> &&entities,
-            tl_object_ptr<telegram_api::InputMedia> &&input_media, bool invert_media,
-            tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup, int32 schedule_date, bool is_media = false) {
-    dialog_id_ = dialog_id;
-    message_id_ = message_id;
-    is_media_ = is_media;
-
-    if (input_media != nullptr && false) {
-      return on_error(Status::Error(400, "FILE_PART_1_MISSING"));
-    }
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Edit);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    if (reply_markup != nullptr) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_REPLY_MARKUP;
-    }
-    if (!entities.empty()) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_ENTITIES;
-    }
-    if (!text.empty()) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_MESSAGE;
-    }
-    if (input_media != nullptr) {
-      flags |= telegram_api::messages_editMessage::MEDIA_MASK;
-    }
-    if (invert_media) {
-      flags |= telegram_api::messages_editMessage::INVERT_MEDIA_MASK;
-    }
-    if (schedule_date != 0) {
-      flags |= telegram_api::messages_editMessage::SCHEDULE_DATE_MASK;
-    }
-
-    int32 server_message_id = schedule_date != 0 ? message_id.get_scheduled_server_message_id().get()
-                                                 : message_id.get_server_message_id().get();
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_editMessage(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-                                           server_message_id, text, std::move(input_media), std::move(reply_markup),
-                                           std::move(entities), schedule_date, 0),
-        {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditMessageQuery: " << to_string(ptr);
-    auto pts = td_->updates_manager_->get_update_edit_message_pts(ptr.get(), {dialog_id_, message_id_});
-    auto promise = PromiseCreator::lambda(
-        [promise = std::move(promise_), pts](Result<Unit> result) mutable { promise.set_value(std::move(pts)); });
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && status.message() == "MESSAGE_NOT_MODIFIED") {
-      return promise_.set_value(0);
-    }
-    if (!is_media_) {
-      if (status.code() != 403 && !(status.code() == 500 && G()->close_flag())) {
-        LOG(WARNING) << "Failed to edit " << MessageFullId{dialog_id_, message_id_} << " with the error "
-                     << status.message();
-      } else {
-        LOG(INFO) << "Receive error for EditMessageQuery: " << status;
-      }
-    }
-    td_->messages_manager_->on_get_message_error(dialog_id_, message_id_, status, "EditMessageQuery");
-    // promise checks for file reference and upload errors if media was edited
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ForwardMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  vector<int64> random_ids_;
-  DialogId from_dialog_id_;
-  DialogId to_dialog_id_;
-  MessageId message_id_;
-
- public:
-  explicit ForwardMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 flags, DialogId to_dialog_id, MessageId top_thread_message_id, DialogId from_dialog_id,
-            tl_object_ptr<telegram_api::InputPeer> as_input_peer, const vector<MessageId> &message_ids,
-            vector<int64> &&random_ids, int32 schedule_date, int32 new_video_start_timestamp,
-            int64 paid_message_star_count) {
-    random_ids_ = random_ids;
-    from_dialog_id_ = from_dialog_id;
-    to_dialog_id_ = to_dialog_id;
-    if (message_ids.size() == 1) {
-      message_id_ = message_ids[0];
-    }
-
-    auto to_input_peer = td_->dialog_manager_->get_input_peer(to_dialog_id, AccessRights::Write);
-    if (to_input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no write access to the chat"));
-    }
-
-    auto from_input_peer = td_->dialog_manager_->get_input_peer(from_dialog_id, AccessRights::Read);
-    if (from_input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat to forward messages from"));
-    }
-
-    if (as_input_peer != nullptr) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_HAS_SEND_AS;
-    }
-    if (top_thread_message_id.is_valid()) {
-      flags |= MessagesManager::SEND_MESSAGE_FLAG_IS_FROM_THREAD;
-    }
-    if (new_video_start_timestamp >= 0) {
-      flags |= telegram_api::messages_forwardMessages::VIDEO_TIMESTAMP_MASK;
-    }
-
-    auto query = G()->net_query_creator().create(
-        telegram_api::messages_forwardMessages(
-            flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-            false /*ignored*/, false /*ignored*/, std::move(from_input_peer),
-            MessageId::get_server_message_ids(message_ids), std::move(random_ids), std::move(to_input_peer),
-            top_thread_message_id.get_server_message_id().get(), schedule_date, std::move(as_input_peer), nullptr,
-            new_video_start_timestamp, paid_message_star_count),
-        {{to_dialog_id, MessageContentType::Text}, {to_dialog_id, MessageContentType::Photo}});
-    if (td_->option_manager_->get_option_boolean("use_quick_ack")) {
-      query->quick_ack_promise_ = PromiseCreator::lambda([random_ids = random_ids_](Result<Unit> result) {
-        if (result.is_ok()) {
-          for (auto random_id : random_ids) {
-            send_closure(G()->messages_manager(), &MessagesManager::on_send_message_get_quick_ack, random_id);
-          }
-        }
-      });
-    }
-    send_query(std::move(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_forwardMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ForwardMessagesQuery for " << random_ids_ << ": " << to_string(ptr);
-    auto sent_random_ids = UpdatesManager::get_sent_messages_random_ids(ptr.get());
-    bool is_result_wrong = false;
-    auto sent_random_ids_size = sent_random_ids.size();
-    for (auto &random_id : random_ids_) {
-      auto it = sent_random_ids.find(random_id);
-      if (it == sent_random_ids.end()) {
-        if (random_ids_.size() == 1) {
-          is_result_wrong = true;
-        }
-        td_->messages_manager_->on_send_message_fail(random_id, Status::Error(400, "Message was not forwarded"));
-      } else {
-        sent_random_ids.erase(it);
-      }
-    }
-    if (!sent_random_ids.empty()) {
-      is_result_wrong = true;
-    }
-    if (!is_result_wrong) {
-      auto sent_messages = UpdatesManager::get_new_messages(ptr.get());
-      if (sent_random_ids_size != sent_messages.size()) {
-        is_result_wrong = true;
-      }
-      for (auto &sent_message : sent_messages) {
-        if (DialogId::get_message_dialog_id(sent_message.first) != to_dialog_id_) {
-          is_result_wrong = true;
-        }
-      }
-    }
-    if (is_result_wrong) {
-      LOG(ERROR) << "Receive wrong result for forwarding messages with random_ids " << random_ids_ << " to "
-                 << to_dialog_id_ << ": " << oneline(to_string(ptr));
-      td_->updates_manager_->schedule_get_difference("Wrong forwardMessages result");
-    }
-
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for forward messages: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, messages will be re-sent after restart
-      return;
-    }
-    // no on_get_dialog_error call, because two dialogs are involved
-    if (status.code() == 400 && status.message() == CSlice("CHAT_FORWARDS_RESTRICTED")) {
-      td_->dialog_manager_->reload_dialog_info(from_dialog_id_, Promise<Unit>());
-    }
-    if (status.code() == 400 && status.message() == CSlice("SEND_AS_PEER_INVALID")) {
-      td_->dialog_manager_->reload_dialog_info_full(to_dialog_id_, "SEND_AS_PEER_INVALID");
-    }
-    if (message_id_.is_valid() && status.message() == CSlice("MESSAGE_ID_INVALID")) {
-      td_->messages_manager_->get_message_from_server({from_dialog_id_, message_id_}, Promise<Unit>(),
-                                                      "ForwardMessagesQuery");
-    }
-    auto star_count = MessagesManager::get_required_paid_message_star_count(status.code(), status.message());
-    if (star_count > 0) {
-      status = Status::Error(status.code(), PSLICE() << "ALLOW_PAYMENT_REQUIRED_" << (star_count / random_ids_.size()));
-    }
-    for (auto &random_id : random_ids_) {
-      td_->messages_manager_->on_send_message_fail(random_id, status.clone());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendQuickReplyMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  vector<int64> random_ids_;
-  DialogId dialog_id_;
-  QuickReplyShortcutId shortcut_id_;
-
- public:
-  explicit SendQuickReplyMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, QuickReplyShortcutId shortcut_id, const vector<MessageId> &message_ids,
-            vector<int64> &&random_ids) {
-    random_ids_ = random_ids;
-    dialog_id_ = dialog_id;
-    shortcut_id_ = shortcut_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no write access to the chat"));
-    }
-
-    auto query = G()->net_query_creator().create(
-        telegram_api::messages_sendQuickReplyMessages(std::move(input_peer), shortcut_id.get(),
-                                                      MessageId::get_server_message_ids(message_ids),
-                                                      std::move(random_ids)),
-        {{dialog_id, MessageContentType::Text}, {dialog_id, MessageContentType::Photo}});
-    if (td_->option_manager_->get_option_boolean("use_quick_ack")) {
-      query->quick_ack_promise_ = PromiseCreator::lambda([random_ids = random_ids_](Result<Unit> result) {
-        if (result.is_ok()) {
-          for (auto random_id : random_ids) {
-            send_closure(G()->messages_manager(), &MessagesManager::on_send_message_get_quick_ack, random_id);
-          }
-        }
-      });
-    }
-    send_query(std::move(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendQuickReplyMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendQuickReplyMessagesQuery for " << random_ids_ << ": " << to_string(ptr);
-    auto sent_messages = UpdatesManager::get_new_messages(ptr.get());
-    auto sent_random_ids = UpdatesManager::get_sent_messages_random_ids(ptr.get());
-    bool is_result_wrong = false;
-    if (random_ids_.size() != sent_messages.size() || random_ids_.size() != sent_random_ids.size()) {
-      is_result_wrong = true;
-    }
-    for (auto &random_id : random_ids_) {
-      auto it = sent_random_ids.find(random_id);
-      if (it == sent_random_ids.end()) {
-        is_result_wrong = true;
-      }
-    }
-    for (auto &sent_message : sent_messages) {
-      if (DialogId::get_message_dialog_id(sent_message.first) != dialog_id_) {
-        is_result_wrong = true;
-      }
-    }
-    if (is_result_wrong) {
-      LOG(ERROR) << "Receive wrong result for sending quick reply messages with random_ids " << random_ids_ << " to "
-                 << dialog_id_ << ": " << oneline(to_string(ptr));
-      td_->updates_manager_->schedule_get_difference("Wrong sendQuickReplyMessages result");
-      for (auto &random_id : random_ids_) {
-        td_->messages_manager_->on_send_message_fail(random_id, Status::Error(500, "Receive invalid response"));
-      }
-    }
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendQuickReplyMessagesQuery: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, messages will be re-sent after restart
-      return;
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendQuickReplyMessagesQuery");
-    if (status.code() == 400 && status.message() == CSlice("MESSAGE_IDS_MISMATCH")) {
-      td_->quick_reply_manager_->reload_quick_reply_messages(shortcut_id_, Auto());
-    }
-    for (auto &random_id : random_ids_) {
-      td_->messages_manager_->on_send_message_fail(random_id, status.clone());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendScreenshotNotificationQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int64 random_id_;
-  DialogId dialog_id_;
-
- public:
-  explicit SendScreenshotNotificationQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int64 random_id) {
-    random_id_ = random_id;
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendScreenshotNotification(
-            std::move(input_peer),
-            telegram_api::make_object<telegram_api::inputReplyToMessage>(0, 0, 0, nullptr, string(), Auto(), 0),
-            random_id),
-        {{dialog_id, MessageContentType::Text}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendScreenshotNotification>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendScreenshotNotificationQuery for " << random_id_ << ": " << to_string(ptr);
-    td_->messages_manager_->check_send_message_result(random_id_, dialog_id_, ptr.get(),
-                                                      "SendScreenshotNotificationQuery");
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendScreenshotNotificationQuery: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, messages will be re-sent after restart
-      return;
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendScreenshotNotificationQuery");
-    td_->messages_manager_->on_send_message_fail(random_id_, status.clone());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendBotRequestedPeerQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SendBotRequestedPeerQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(MessageFullId message_full_id, int32 button_id, vector<DialogId> &&requested_dialog_ids) {
-    auto dialog_id = message_full_id.get_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    vector<telegram_api::object_ptr<telegram_api::InputPeer>> requested_peers;
-    for (auto requested_dialog_id : requested_dialog_ids) {
-      auto requested_peer = td_->dialog_manager_->get_input_peer(requested_dialog_id, AccessRights::Read);
-      if (requested_peer == nullptr) {
-        return on_error(Status::Error(400, "Can't access the chosen chat"));
-      }
-      requested_peers.push_back(std::move(requested_peer));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendBotRequestedPeer(std::move(input_peer),
-                                                    message_full_id.get_message_id().get_server_message_id().get(),
-                                                    button_id, std::move(requested_peers)),
-        {{dialog_id, MessageContentType::Text}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendBotRequestedPeer>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendBotRequestedPeerQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChannelDifferenceQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  int32 pts_;
-  int32 limit_;
-
- public:
-  void send(DialogId dialog_id, tl_object_ptr<telegram_api::InputChannel> &&input_channel, int32 pts, int32 limit,
-            bool force) {
-    CHECK(pts >= 0);
-    dialog_id_ = dialog_id;
-    pts_ = pts;
-    limit_ = limit;
-    CHECK(input_channel != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::updates_getChannelDifference(
-        0, force, std::move(input_channel), make_tl_object<telegram_api::channelMessagesFilterEmpty>(), pts, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::updates_getChannelDifference>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->messages_manager_->on_get_channel_difference(dialog_id_, pts_, limit_, result_ptr.move_as_ok(), Status::OK());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetChannelDifferenceQuery") &&
-        status.message() != "PERSISTENT_TIMESTAMP_INVALID") {
-      LOG(ERROR) << "Receive error for GetChannelDifferenceQuery for " << dialog_id_ << " with PTS " << pts_
-                 << " and limit " << limit_ << ": " << status;
-    }
-    td_->messages_manager_->on_get_channel_difference(dialog_id_, pts_, limit_, nullptr, std::move(status));
-  }
-};
-
-class MessagesManager::UploadMediaCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_upload_media, file_upload_id,
-                       std::move(input_file), nullptr);
-  }
-
-  void on_upload_encrypted_ok(FileUploadId file_upload_id,
-                              telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file) final {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_upload_media, file_upload_id, nullptr,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_upload_media_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-class MessagesManager::UploadThumbnailCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_upload_thumbnail, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->messages_manager(), &MessagesManager::on_upload_thumbnail, file_upload_id, nullptr);
-  }
-};
-
-template <class StorerT>
-void MessagesManager::Message::store(StorerT &storer) const {
-  using td::store;
-  bool has_sender = sender_user_id.is_valid();
-  bool has_edit_date = edit_date > 0;
-  bool has_random_id = random_id != 0;
-  bool is_reply_to_random_id = reply_to_random_id != 0;
-  bool is_via_bot = via_bot_user_id.is_valid();
-  bool has_view_count = view_count > 0;
-  bool has_reply_markup = reply_markup != nullptr;
-  bool has_ttl = ttl.is_valid();
-  bool has_author_signature = !author_signature.empty();
-  bool has_media_album_id = media_album_id != 0;
-  bool has_send_date = message_id.is_yet_unsent() && send_date != 0;
-  bool has_flags2 = true;
-  bool has_notification_id = notification_id.is_valid();
-  bool has_send_error_code = send_error_code != 0;
-  bool has_real_forward_from = real_forward_from_dialog_id.is_valid() && real_forward_from_message_id.is_valid();
-  bool has_legacy_layer = legacy_layer != 0;
-  bool has_restriction_reasons = !restriction_reasons.empty();
-  bool has_forward_count = forward_count > 0;
-  bool has_reply_info = !reply_info.is_empty();
-  bool has_sender_dialog_id = sender_dialog_id.is_valid();
-  bool has_top_thread_message_id = top_thread_message_id.is_valid();
-  bool has_thread_draft_message = thread_draft_message != nullptr;
-  bool has_local_thread_message_ids = !local_thread_message_ids.empty();
-  bool has_linked_top_thread_message_id = linked_top_thread_message_id.is_valid();
-  bool has_interaction_info_update_date = interaction_info_update_date != 0;
-  bool has_send_emoji = !send_emoji.empty();
-  bool has_ttl_period = ttl_period != 0;
-  bool has_max_reply_media_timestamp = max_reply_media_timestamp >= 0;
-  bool are_message_media_timestamp_entities_found = true;
-  bool has_flags3 = true;
-  bool has_reactions = reactions != nullptr;
-  bool has_available_reactions_generation = available_reactions_generation != 0;
-  bool has_history_generation = history_generation != 0;
-  bool is_reply_to_story = reply_to_story_full_id != StoryFullId();
-  bool has_input_reply_to = !message_id.is_any_server() && input_reply_to.is_valid();
-  bool has_replied_message_info = !replied_message_info.is_empty();
-  bool has_forward_info = forward_info != nullptr;
-  bool has_saved_messages_topic_id = saved_messages_topic_id.is_valid();
-  bool has_initial_top_thread_message_id = !message_id.is_any_server() && initial_top_thread_message_id.is_valid();
-  bool has_sender_boost_count = sender_boost_count != 0;
-  bool has_via_business_bot_user_id = via_business_bot_user_id.is_valid();
-  bool has_effect_id = effect_id.is_valid();
-  bool has_fact_check = fact_check != nullptr;
-  bool has_initial_sender_dialog_id = !message_id.is_any_server() && initial_sender_dialog_id.is_valid();
-  bool has_reactions_are_possible = true;
-  bool has_new_video_start_timestamp = new_video_start_timestamp >= 0;
-  bool has_paid_message_star_count = paid_message_star_count > 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_channel_post);
-  STORE_FLAG(is_outgoing);
-  STORE_FLAG(is_failed_to_send);
-  STORE_FLAG(disable_notification);
-  STORE_FLAG(contains_mention);
-  STORE_FLAG(from_background);
-  STORE_FLAG(disable_web_page_preview);
-  STORE_FLAG(clear_draft);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(has_sender);
-  STORE_FLAG(has_edit_date);
-  STORE_FLAG(has_random_id);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(is_reply_to_random_id);
-  STORE_FLAG(is_via_bot);
-  STORE_FLAG(has_view_count);
-  STORE_FLAG(has_reply_markup);
-  STORE_FLAG(has_ttl);
-  STORE_FLAG(has_author_signature);
-  STORE_FLAG(false);
-  STORE_FLAG(had_reply_markup);
-  STORE_FLAG(contains_unread_mention);
-  STORE_FLAG(has_media_album_id);
-  STORE_FLAG(false);
-  STORE_FLAG(in_game_share);
-  STORE_FLAG(is_content_secret);
-  STORE_FLAG(has_send_date);
-  STORE_FLAG(has_flags2);
-  END_STORE_FLAGS();
-  if (has_flags2) {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_notification_id);
-    STORE_FLAG(is_mention_notification_disabled);
-    STORE_FLAG(had_forward_info);
-    STORE_FLAG(false);
-    STORE_FLAG(has_send_error_code);
-    STORE_FLAG(hide_via_bot);
-    STORE_FLAG(is_bot_start_message);
-    STORE_FLAG(has_real_forward_from);
-    STORE_FLAG(has_legacy_layer);
-    STORE_FLAG(hide_edit_date);
-    STORE_FLAG(has_restriction_reasons);
-    STORE_FLAG(is_from_scheduled);
-    STORE_FLAG(is_copy);
-    STORE_FLAG(false);
-    STORE_FLAG(has_forward_count);
-    STORE_FLAG(has_reply_info);
-    STORE_FLAG(has_sender_dialog_id);
-    STORE_FLAG(false);
-    STORE_FLAG(has_top_thread_message_id);
-    STORE_FLAG(has_thread_draft_message);
-    STORE_FLAG(has_local_thread_message_ids);
-    STORE_FLAG(has_linked_top_thread_message_id);
-    STORE_FLAG(is_pinned);
-    STORE_FLAG(has_interaction_info_update_date);
-    STORE_FLAG(has_send_emoji);
-    STORE_FLAG(false);
-    STORE_FLAG(has_ttl_period);
-    STORE_FLAG(has_max_reply_media_timestamp);
-    STORE_FLAG(are_message_media_timestamp_entities_found);
-    STORE_FLAG(has_flags3);
-    END_STORE_FLAGS();
-  }
-  if (has_flags3) {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(noforwards);
-    STORE_FLAG(has_explicit_sender);
-    STORE_FLAG(has_reactions);
-    STORE_FLAG(has_available_reactions_generation);
-    STORE_FLAG(update_stickersets_order);
-    STORE_FLAG(is_topic_message);  // 5
-    STORE_FLAG(has_history_generation);
-    STORE_FLAG(is_reply_to_story);
-    STORE_FLAG(false);
-    STORE_FLAG(invert_media);
-    STORE_FLAG(has_input_reply_to);  // 10
-    STORE_FLAG(has_replied_message_info);
-    STORE_FLAG(has_forward_info);
-    STORE_FLAG(has_saved_messages_topic_id);
-    STORE_FLAG(has_initial_top_thread_message_id);
-    STORE_FLAG(has_sender_boost_count);  // 15
-    STORE_FLAG(has_via_business_bot_user_id);
-    STORE_FLAG(is_from_offline);
-    STORE_FLAG(has_effect_id);
-    STORE_FLAG(has_fact_check);
-    STORE_FLAG(has_initial_sender_dialog_id);  // 20
-    STORE_FLAG(allow_paid);
-    STORE_FLAG(video_processing_pending);
-    STORE_FLAG(has_reactions_are_possible);
-    STORE_FLAG(reactions_are_possible);
-    STORE_FLAG(has_new_video_start_timestamp);  // 25
-    STORE_FLAG(has_paid_message_star_count);
-    END_STORE_FLAGS();
-  }
-
-  store(message_id, storer);
-  if (has_sender) {
-    store(sender_user_id, storer);
-  }
-  store(date, storer);
-  if (has_edit_date) {
-    store(edit_date, storer);
-  }
-  if (has_send_date) {
-    store(send_date, storer);
-  }
-  if (has_random_id) {
-    store(random_id, storer);
-  }
-  if (has_forward_info) {
-    store(forward_info, storer);
-  }
-  if (has_real_forward_from) {
-    store(real_forward_from_dialog_id, storer);
-    store(real_forward_from_message_id, storer);
-  }
-  if (is_reply_to_random_id) {
-    store(reply_to_random_id, storer);
-  }
-  if (is_via_bot) {
-    store(via_bot_user_id, storer);
-  }
-  if (has_view_count) {
-    store(view_count, storer);
-  }
-  if (has_forward_count) {
-    store(forward_count, storer);
-  }
-  if (has_reply_info) {
-    store(reply_info, storer);
-  }
-  if (has_ttl) {
-    store(ttl, storer);
-    store_time(ttl_expires_at, storer);
-  }
-  if (has_send_error_code) {
-    store(send_error_code, storer);
-    store(send_error_message, storer);
-    if (send_error_code == 429) {
-      store_time(try_resend_at, storer);
-    }
-  }
-  if (has_author_signature) {
-    store(author_signature, storer);
-  }
-  if (has_media_album_id) {
-    store(media_album_id, storer);
-  }
-  if (has_notification_id) {
-    store(notification_id, storer);
-  }
-  if (has_legacy_layer) {
-    store(legacy_layer, storer);
-  }
-  if (has_restriction_reasons) {
-    store(restriction_reasons, storer);
-  }
-  if (has_sender_dialog_id) {
-    store(sender_dialog_id, storer);
-  }
-  if (has_top_thread_message_id) {
-    store(top_thread_message_id, storer);
-  }
-  if (has_thread_draft_message) {
-    store(thread_draft_message, storer);
-  }
-  if (has_local_thread_message_ids) {
-    store(local_thread_message_ids, storer);
-  }
-  if (has_linked_top_thread_message_id) {
-    store(linked_top_thread_message_id, storer);
-  }
-  if (has_interaction_info_update_date) {
-    store(interaction_info_update_date, storer);
-  }
-  if (has_send_emoji) {
-    store(send_emoji, storer);
-  }
-  store_message_content(content.get(), storer);
-  if (has_reply_markup) {
-    store(reply_markup, storer);
-  }
-  if (has_ttl_period) {
-    store(ttl_period, storer);
-  }
-  if (has_max_reply_media_timestamp) {
-    store(max_reply_media_timestamp, storer);
-  }
-  if (has_reactions) {
-    store(reactions, storer);
-  }
-  if (has_available_reactions_generation) {
-    store(available_reactions_generation, storer);
-  }
-  if (has_history_generation) {
-    store(history_generation, storer);
-  }
-  if (is_reply_to_story) {
-    store(reply_to_story_full_id, storer);
-  }
-  if (has_input_reply_to) {
-    store(input_reply_to, storer);
-  }
-  if (has_replied_message_info) {
-    store(replied_message_info, storer);
-  }
-  if (has_saved_messages_topic_id) {
-    store(saved_messages_topic_id, storer);
-  }
-  if (has_initial_top_thread_message_id) {
-    store(initial_top_thread_message_id, storer);
-  }
-  if (has_sender_boost_count) {
-    store(sender_boost_count, storer);
-  }
-  if (has_via_business_bot_user_id) {
-    store(via_business_bot_user_id, storer);
-  }
-  if (has_effect_id) {
-    store(effect_id, storer);
-  }
-  if (has_fact_check) {
-    store(fact_check, storer);
-  }
-  if (has_initial_sender_dialog_id) {
-    store(initial_sender_dialog_id, storer);
-  }
-  if (has_new_video_start_timestamp) {
-    store(new_video_start_timestamp, storer);
-  }
-  if (has_paid_message_star_count) {
-    store(paid_message_star_count, storer);
-  }
-}
-
-// do not forget to resolve message dependencies
-template <class ParserT>
-void MessagesManager::Message::parse(ParserT &parser) {
-  using td::parse;
-  bool legacy_have_previous;
-  bool legacy_have_next;
-  bool has_sender;
-  bool has_edit_date;
-  bool has_random_id;
-  bool legacy_is_forwarded;
-  bool legacy_is_reply;
-  bool is_reply_to_random_id;
-  bool is_via_bot;
-  bool has_view_count;
-  bool has_reply_markup;
-  bool has_ttl;
-  bool has_author_signature;
-  bool legacy_has_forward_author_signature;
-  bool has_media_album_id;
-  bool legacy_has_forward_from;
-  bool has_send_date;
-  bool has_flags2;
-  bool has_notification_id = false;
-  bool legacy_has_forward_sender_name = false;
-  bool has_send_error_code = false;
-  bool has_real_forward_from = false;
-  bool has_legacy_layer = false;
-  bool has_restriction_reasons = false;
-  bool legacy_has_forward_psa_type = false;
-  bool has_forward_count = false;
-  bool has_reply_info = false;
-  bool has_sender_dialog_id = false;
-  bool legacy_has_reply_in_dialog_id = false;
-  bool has_top_thread_message_id = false;
-  bool has_thread_draft_message = false;
-  bool has_local_thread_message_ids = false;
-  bool has_linked_top_thread_message_id = false;
-  bool has_interaction_info_update_date = false;
-  bool has_send_emoji = false;
-  bool legacy_is_imported = false;
-  bool has_ttl_period = false;
-  bool has_max_reply_media_timestamp = false;
-  bool has_flags3 = false;
-  bool has_reactions = false;
-  bool has_available_reactions_generation = false;
-  bool has_history_generation = false;
-  bool is_reply_to_story = false;
-  bool legacy_has_forward_origin = false;
-  bool has_input_reply_to = false;
-  bool has_replied_message_info = false;
-  bool has_forward_info = false;
-  bool has_saved_messages_topic_id = false;
-  bool has_initial_top_thread_message_id = false;
-  bool has_sender_boost_count = false;
-  bool has_via_business_bot_user_id = false;
-  bool has_effect_id = false;
-  bool has_fact_check = false;
-  bool has_initial_sender_dialog_id = false;
-  bool has_reactions_are_possible = false;
-  bool has_new_video_start_timestamp = false;
-  bool has_paid_message_star_count = false;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_channel_post);
-  PARSE_FLAG(is_outgoing);
-  PARSE_FLAG(is_failed_to_send);
-  PARSE_FLAG(disable_notification);
-  PARSE_FLAG(contains_mention);
-  PARSE_FLAG(from_background);
-  PARSE_FLAG(disable_web_page_preview);
-  PARSE_FLAG(clear_draft);
-  PARSE_FLAG(legacy_have_previous);
-  PARSE_FLAG(legacy_have_next);
-  PARSE_FLAG(has_sender);
-  PARSE_FLAG(has_edit_date);
-  PARSE_FLAG(has_random_id);
-  PARSE_FLAG(legacy_is_forwarded);
-  PARSE_FLAG(legacy_is_reply);
-  PARSE_FLAG(is_reply_to_random_id);
-  PARSE_FLAG(is_via_bot);
-  PARSE_FLAG(has_view_count);
-  PARSE_FLAG(has_reply_markup);
-  PARSE_FLAG(has_ttl);
-  PARSE_FLAG(has_author_signature);
-  PARSE_FLAG(legacy_has_forward_author_signature);
-  PARSE_FLAG(had_reply_markup);
-  PARSE_FLAG(contains_unread_mention);
-  PARSE_FLAG(has_media_album_id);
-  PARSE_FLAG(legacy_has_forward_from);
-  PARSE_FLAG(in_game_share);
-  PARSE_FLAG(is_content_secret);
-  PARSE_FLAG(has_send_date);
-  PARSE_FLAG(has_flags2);
-  END_PARSE_FLAGS();
-  if (has_flags2) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_notification_id);
-    PARSE_FLAG(is_mention_notification_disabled);
-    PARSE_FLAG(had_forward_info);
-    PARSE_FLAG(legacy_has_forward_sender_name);
-    PARSE_FLAG(has_send_error_code);
-    PARSE_FLAG(hide_via_bot);
-    PARSE_FLAG(is_bot_start_message);
-    PARSE_FLAG(has_real_forward_from);
-    PARSE_FLAG(has_legacy_layer);
-    PARSE_FLAG(hide_edit_date);
-    PARSE_FLAG(has_restriction_reasons);
-    PARSE_FLAG(is_from_scheduled);
-    PARSE_FLAG(is_copy);
-    PARSE_FLAG(legacy_has_forward_psa_type);
-    PARSE_FLAG(has_forward_count);
-    PARSE_FLAG(has_reply_info);
-    PARSE_FLAG(has_sender_dialog_id);
-    PARSE_FLAG(legacy_has_reply_in_dialog_id);
-    PARSE_FLAG(has_top_thread_message_id);
-    PARSE_FLAG(has_thread_draft_message);
-    PARSE_FLAG(has_local_thread_message_ids);
-    PARSE_FLAG(has_linked_top_thread_message_id);
-    PARSE_FLAG(is_pinned);
-    PARSE_FLAG(has_interaction_info_update_date);
-    PARSE_FLAG(has_send_emoji);
-    PARSE_FLAG(legacy_is_imported);
-    PARSE_FLAG(has_ttl_period);
-    PARSE_FLAG(has_max_reply_media_timestamp);
-    PARSE_FLAG(are_media_timestamp_entities_found);
-    PARSE_FLAG(has_flags3);
-    END_PARSE_FLAGS();
-  }
-  if (has_flags3) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(noforwards);
-    PARSE_FLAG(has_explicit_sender);
-    PARSE_FLAG(has_reactions);
-    PARSE_FLAG(has_available_reactions_generation);
-    PARSE_FLAG(update_stickersets_order);
-    PARSE_FLAG(is_topic_message);
-    PARSE_FLAG(has_history_generation);
-    PARSE_FLAG(is_reply_to_story);
-    PARSE_FLAG(legacy_has_forward_origin);
-    PARSE_FLAG(invert_media);
-    PARSE_FLAG(has_input_reply_to);
-    PARSE_FLAG(has_replied_message_info);
-    PARSE_FLAG(has_forward_info);
-    PARSE_FLAG(has_saved_messages_topic_id);
-    PARSE_FLAG(has_initial_top_thread_message_id);
-    PARSE_FLAG(has_sender_boost_count);
-    PARSE_FLAG(has_via_business_bot_user_id);
-    PARSE_FLAG(is_from_offline);
-    PARSE_FLAG(has_effect_id);
-    PARSE_FLAG(has_fact_check);
-    PARSE_FLAG(has_initial_sender_dialog_id);
-    PARSE_FLAG(allow_paid);
-    PARSE_FLAG(video_processing_pending);
-    PARSE_FLAG(has_reactions_are_possible);
-    PARSE_FLAG(reactions_are_possible);
-    PARSE_FLAG(has_new_video_start_timestamp);
-    PARSE_FLAG(has_paid_message_star_count);
-    END_PARSE_FLAGS();
-  }
-
-  parse(message_id, parser);
-  if (!message_id.is_valid() && !message_id.is_valid_scheduled()) {
-    return parser.set_error("Invalid message identifier");
-  }
-  if (has_sender) {
-    parse(sender_user_id, parser);
-  }
-  parse(date, parser);
-  if (has_edit_date) {
-    parse(edit_date, parser);
-  }
-  if (has_send_date) {
-    if (!message_id.is_yet_unsent()) {
-      return parser.set_error("Unexpected send date");
-    }
-    parse(send_date, parser);
-  } else if (message_id.is_valid() && message_id.is_yet_unsent()) {
-    send_date = date;  // for backward compatibility
-  }
-  if (has_random_id) {
-    parse(random_id, parser);
-  }
-  if (has_forward_info) {
-    parse(forward_info, parser);
-  } else if (legacy_is_forwarded) {
-    MessageOrigin forward_origin;
-    int32 forward_date;
-    if (legacy_has_forward_origin) {
-      parse(forward_origin, parser);
-      parse(forward_date, parser);
-    } else {
-      UserId forward_sender_user_id;
-      DialogId forward_sender_dialog_id;
-      MessageId forward_message_id;
-      string forward_author_signature;
-      string forward_sender_name;
-      parse(forward_sender_user_id, parser);
-      parse(forward_date, parser);
-      parse(forward_sender_dialog_id, parser);
-      parse(forward_message_id, parser);
-      if (legacy_has_forward_author_signature) {
-        parse(forward_author_signature, parser);
-      }
-      if (legacy_has_forward_sender_name) {
-        parse(forward_sender_name, parser);
-      }
-      forward_origin = MessageOrigin(forward_sender_user_id, forward_sender_dialog_id, forward_message_id,
-                                     std::move(forward_author_signature), std::move(forward_sender_name));
-    }
-    LastForwardedMessageInfo last_message_info;
-    if (legacy_has_forward_from) {
-      DialogId forward_from_dialog_id;
-      MessageId forward_from_message_id;
-      parse(forward_from_dialog_id, parser);
-      parse(forward_from_message_id, parser);
-      last_message_info =
-          LastForwardedMessageInfo(forward_from_dialog_id, forward_from_message_id, DialogId(), string(), 0, false);
-    }
-    string psa_type;
-    if (legacy_has_forward_psa_type) {
-      parse(psa_type, parser);
-    }
-    forward_info = td::make_unique<MessageForwardInfo>(
-        std::move(forward_origin), forward_date, std::move(last_message_info), std::move(psa_type), legacy_is_imported);
-  }
-  if (has_real_forward_from) {
-    parse(real_forward_from_dialog_id, parser);
-    parse(real_forward_from_message_id, parser);
-  }
-  MessageId legacy_reply_to_message_id;
-  if (legacy_is_reply) {
-    parse(legacy_reply_to_message_id, parser);
-  }
-  if (is_reply_to_random_id) {
-    parse(reply_to_random_id, parser);
-  }
-  if (is_via_bot) {
-    parse(via_bot_user_id, parser);
-  }
-  if (has_view_count) {
-    parse(view_count, parser);
-  }
-  if (has_forward_count) {
-    parse(forward_count, parser);
-  }
-  if (has_reply_info) {
-    parse(reply_info, parser);
-  }
-  if (has_ttl) {
-    parse(ttl, parser);
-    parse_time(ttl_expires_at, parser);
-  }
-  if (has_send_error_code) {
-    parse(send_error_code, parser);
-    parse(send_error_message, parser);
-    if (send_error_code == 429) {
-      parse_time(try_resend_at, parser);
-    }
-  }
-  if (has_author_signature) {
-    parse(author_signature, parser);
-  }
-  if (has_media_album_id) {
-    parse(media_album_id, parser);
-  }
-  if (has_notification_id) {
-    parse(notification_id, parser);
-  }
-  if (has_legacy_layer) {
-    parse(legacy_layer, parser);
-  }
-  if (has_restriction_reasons) {
-    parse(restriction_reasons, parser);
-  }
-  if (has_sender_dialog_id) {
-    parse(sender_dialog_id, parser);
-  }
-  DialogId legacy_reply_in_dialog_id;
-  if (legacy_has_reply_in_dialog_id) {
-    parse(legacy_reply_in_dialog_id, parser);
-  }
-  if (has_top_thread_message_id) {
-    parse(top_thread_message_id, parser);
-  }
-  if (has_thread_draft_message) {
-    parse(thread_draft_message, parser);
-  }
-  if (has_local_thread_message_ids) {
-    parse(local_thread_message_ids, parser);
-  }
-  if (has_linked_top_thread_message_id) {
-    parse(linked_top_thread_message_id, parser);
-  }
-  if (has_interaction_info_update_date) {
-    parse(interaction_info_update_date, parser);
-  }
-  if (has_send_emoji) {
-    parse(send_emoji, parser);
-  }
-  parse_message_content(content, parser);
-  if (has_reply_markup) {
-    parse(reply_markup, parser);
-  }
-  if (has_ttl_period) {
-    parse(ttl_period, parser);
-  }
-  if (has_max_reply_media_timestamp) {
-    parse(max_reply_media_timestamp, parser);
-  }
-  if (has_reactions) {
-    parse(reactions, parser);
-  }
-  if (has_available_reactions_generation) {
-    parse(available_reactions_generation, parser);
-  }
-  if (has_history_generation) {
-    parse(history_generation, parser);
-  }
-  if (is_reply_to_story) {
-    parse(reply_to_story_full_id, parser);
-  }
-  if (has_input_reply_to) {
-    parse(input_reply_to, parser);
-  } else if (!message_id.is_any_server()) {
-    if (reply_to_story_full_id.is_valid()) {
-      input_reply_to = MessageInputReplyTo(reply_to_story_full_id);
-    } else if (legacy_reply_to_message_id.is_valid()) {
-      input_reply_to = MessageInputReplyTo{legacy_reply_to_message_id, DialogId(), MessageQuote()};
-    }
-  }
-  if (has_replied_message_info) {
-    parse(replied_message_info, parser);
-  } else {
-    replied_message_info = RepliedMessageInfo::legacy(legacy_reply_to_message_id, legacy_reply_in_dialog_id);
-  }
-  if (has_saved_messages_topic_id) {
-    parse(saved_messages_topic_id, parser);
-  }
-  if (has_initial_top_thread_message_id) {
-    parse(initial_top_thread_message_id, parser);
-  }
-  if (has_sender_boost_count) {
-    parse(sender_boost_count, parser);
-  }
-  if (has_via_business_bot_user_id) {
-    parse(via_business_bot_user_id, parser);
-  }
-  if (has_effect_id) {
-    parse(effect_id, parser);
-  }
-  if (has_fact_check) {
-    parse(fact_check, parser);
-  }
-  if (has_initial_sender_dialog_id) {
-    parse(initial_sender_dialog_id, parser);
-  }
-  if (has_new_video_start_timestamp) {
-    parse(new_video_start_timestamp, parser);
-  } else {
-    new_video_start_timestamp = -1;
-  }
-  if (has_paid_message_star_count) {
-    parse(paid_message_star_count, parser);
-  }
-
-  CHECK(content != nullptr);
-  is_content_secret |= ttl.is_secret_message_content(content->get_type());  // repair is_content_secret for old messages
-  if (hide_edit_date && content->get_type() == MessageContentType::LiveLocation) {
-    hide_edit_date = false;
-  }
-  if (!has_reactions_are_possible) {
-    reactions_are_possible = get_default_service_message_content_reactions_are_possible(content->get_type());
-  }
-}
-
-template <class StorerT>
-void MessagesManager::Dialog::store(StorerT &storer) const {
-  using td::store;
-  const Message *last_database_message = nullptr;
-  if (last_database_message_id.is_valid()) {
-    last_database_message = get_message(this, last_database_message_id);
-  }
-
-  auto dialog_type = dialog_id.get_type();
-  bool has_draft_message = draft_message != nullptr;
-  bool has_last_database_message = last_database_message != nullptr;
-  bool has_first_database_message_id = first_database_message_id.is_valid();
-  bool has_first_database_message_id_by_index = true;
-  bool has_message_count_by_index = true;
-  bool has_client_data = !client_data.empty();
-  bool has_last_read_all_mentions_message_id = last_read_all_mentions_message_id.is_valid();
-  bool has_max_unavailable_message_id = max_unavailable_message_id.is_valid();
-  bool has_local_unread_count = local_unread_count != 0;
-  bool has_deleted_last_message = delete_last_message_date > 0;
-  bool has_last_clear_history_message_id = last_clear_history_message_id.is_valid();
-  bool has_last_database_message_id = !has_last_database_message && last_database_message_id.is_valid();
-  bool has_message_notification_group =
-      notification_info != nullptr && notification_info->message_notification_group_.is_active();
-  bool has_mention_notification_group =
-      notification_info != nullptr && notification_info->mention_notification_group_.is_active();
-  bool has_new_secret_chat_notification_id =
-      notification_info != nullptr && notification_info->new_secret_chat_notification_id_.is_valid();
-  bool has_pinned_message_notification =
-      notification_info != nullptr && notification_info->pinned_message_notification_message_id_.is_valid();
-  bool has_last_pinned_message_id = last_pinned_message_id.is_valid();
-  bool has_flags2 = true;
-  bool has_max_push_notification_message_id =
-      notification_info != nullptr && notification_info->max_push_notification_message_id_.is_valid() &&
-      notification_info->max_push_notification_message_id_ > last_new_message_id;
-  bool has_folder_id = folder_id != FolderId();
-  bool has_pending_read_channel_inbox = pending_read_channel_inbox_pts != 0;
-  bool has_last_yet_unsent_message = last_message_id.is_valid() && last_message_id.is_yet_unsent();
-  bool has_active_group_call_id = active_group_call_id.is_valid();
-  bool has_message_ttl = !message_ttl.is_empty();
-  bool has_default_join_group_call_as_dialog_id = default_join_group_call_as_dialog_id.is_valid();
-  bool store_has_bots = dialog_type == DialogType::Chat || dialog_type == DialogType::Channel;
-  bool has_theme_name = !theme_name.empty();
-  bool has_flags3 = true;
-  bool has_pending_join_requests = pending_join_request_count != 0;
-  bool has_action_bar = action_bar != nullptr;
-  bool has_default_send_message_as_dialog_id = default_send_message_as_dialog_id.is_valid();
-  bool has_legacy_available_reactions = false;
-  bool has_available_reactions_generation = available_reactions_generation != 0;
-  bool has_have_full_history_source = have_full_history && have_full_history_source != 0;
-  bool has_available_reactions = !available_reactions.empty();
-  bool has_history_generation = history_generation != 0;
-  bool has_background = background_info.is_valid();
-  bool has_business_bot_manage_bar = business_bot_manage_bar != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_draft_message);
-  STORE_FLAG(has_last_database_message);
-  STORE_FLAG(false);  // legacy_know_can_report_spam
-  STORE_FLAG(false);  // action_bar->can_report_spam
-  STORE_FLAG(has_first_database_message_id);
-  STORE_FLAG(false);  // legacy_is_pinned
-  STORE_FLAG(has_first_database_message_id_by_index);
-  STORE_FLAG(has_message_count_by_index);
-  STORE_FLAG(has_client_data);
-  STORE_FLAG(need_restore_reply_markup);
-  STORE_FLAG(have_full_history);
-  STORE_FLAG(has_last_read_all_mentions_message_id);
-  STORE_FLAG(has_max_unavailable_message_id);
-  STORE_FLAG(is_last_read_inbox_message_id_inited);
-  STORE_FLAG(is_last_read_outbox_message_id_inited);
-  STORE_FLAG(has_local_unread_count);
-  STORE_FLAG(has_deleted_last_message);
-  STORE_FLAG(has_last_clear_history_message_id);
-  STORE_FLAG(is_last_message_deleted_locally);
-  STORE_FLAG(has_contact_registered_message);
-  STORE_FLAG(has_last_database_message_id);
-  STORE_FLAG(need_repair_server_unread_count);
-  STORE_FLAG(is_marked_as_unread);
-  STORE_FLAG(has_message_notification_group);
-  STORE_FLAG(has_mention_notification_group);
-  STORE_FLAG(has_new_secret_chat_notification_id);
-  STORE_FLAG(has_pinned_message_notification);
-  STORE_FLAG(has_last_pinned_message_id);
-  STORE_FLAG(is_last_pinned_message_id_inited);
-  STORE_FLAG(has_flags2);
-  END_STORE_FLAGS();
-
-  store(dialog_id, storer);  // must be stored at offset 4
-
-  if (has_flags2) {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_max_push_notification_message_id);
-    STORE_FLAG(has_folder_id);
-    STORE_FLAG(is_folder_id_inited);
-    STORE_FLAG(has_pending_read_channel_inbox);
-    STORE_FLAG(know_action_bar);
-    STORE_FLAG(false);  // action_bar->can_add_contact
-    STORE_FLAG(false);  // action_bar->can_block_user
-    STORE_FLAG(false);  // action_bar->can_share_phone_number
-    STORE_FLAG(false);  // action_bar->can_report_location
-    STORE_FLAG(has_scheduled_server_messages);
-    STORE_FLAG(has_scheduled_database_messages);
-    STORE_FLAG(need_repair_channel_server_unread_count);
-    STORE_FLAG(false);  // action_bar->can_unarchive
-    STORE_FLAG(false);  // action_bar_has_distance
-    STORE_FLAG(has_outgoing_messages);
-    STORE_FLAG(has_last_yet_unsent_message);
-    STORE_FLAG(is_blocked);
-    STORE_FLAG(is_is_blocked_inited);
-    STORE_FLAG(has_active_group_call);
-    STORE_FLAG(is_group_call_empty);
-    STORE_FLAG(has_active_group_call_id);
-    STORE_FLAG(false);  // action_bar->can_invite_members
-    STORE_FLAG(has_message_ttl);
-    STORE_FLAG(is_message_ttl_inited);
-    STORE_FLAG(has_default_join_group_call_as_dialog_id);
-    STORE_FLAG(store_has_bots ? has_bots : false);
-    STORE_FLAG(store_has_bots ? is_has_bots_inited : false);
-    STORE_FLAG(is_theme_name_inited);
-    STORE_FLAG(has_theme_name);
-    STORE_FLAG(has_flags3);
-    END_STORE_FLAGS();
-  }
-  if (has_flags3) {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_pending_join_requests);
-    STORE_FLAG(need_repair_action_bar);
-    STORE_FLAG(has_action_bar);
-    STORE_FLAG(has_default_send_message_as_dialog_id);
-    STORE_FLAG(need_drop_default_send_message_as_dialog_id);
-    STORE_FLAG(has_legacy_available_reactions);
-    STORE_FLAG(is_available_reactions_inited);
-    STORE_FLAG(has_available_reactions_generation);
-    STORE_FLAG(has_have_full_history_source);
-    STORE_FLAG(has_available_reactions);
-    STORE_FLAG(has_history_generation);
-    STORE_FLAG(need_repair_unread_reaction_count);
-    STORE_FLAG(is_translatable);
-    STORE_FLAG(need_repair_unread_mention_count);
-    STORE_FLAG(is_background_inited);
-    STORE_FLAG(has_background);
-    STORE_FLAG(is_blocked_for_stories);
-    STORE_FLAG(is_is_blocked_for_stories_inited);
-    STORE_FLAG(view_as_messages);
-    STORE_FLAG(is_view_as_messages_inited);
-    STORE_FLAG(is_forum);
-    STORE_FLAG(is_saved_messages_view_as_messages_inited);
-    STORE_FLAG(has_business_bot_manage_bar);
-    END_STORE_FLAGS();
-  }
-
-  store(last_new_message_id, storer);
-  store(server_unread_count, storer);
-  if (has_local_unread_count) {
-    store(local_unread_count, storer);
-  }
-  store(last_read_inbox_message_id, storer);
-  store(last_read_outbox_message_id, storer);
-  store(reply_markup_message_id, storer);
-  store(notification_settings, storer);
-  if (has_draft_message) {
-    store(draft_message, storer);
-  }
-  store(last_clear_history_date, storer);
-  store(order, storer);
-  if (has_last_database_message) {
-    store(*last_database_message, storer);
-  }
-  if (has_first_database_message_id) {
-    store(first_database_message_id, storer);
-  }
-  if (has_deleted_last_message) {
-    store(delete_last_message_date, storer);
-    store(deleted_last_message_id, storer);
-  }
-  if (has_last_clear_history_message_id) {
-    store(last_clear_history_message_id, storer);
-  }
-
-  if (has_first_database_message_id_by_index) {
-    store(static_cast<int32>(first_database_message_id_by_index.size()), storer);
-    for (auto first_message_id : first_database_message_id_by_index) {
-      store(first_message_id, storer);
-    }
-  }
-  if (has_message_count_by_index) {
-    store(static_cast<int32>(message_count_by_index.size()), storer);
-    for (auto message_count : message_count_by_index) {
-      store(message_count, storer);
-    }
-  }
-  if (has_client_data) {
-    store(client_data, storer);
-  }
-  if (has_last_read_all_mentions_message_id) {
-    store(last_read_all_mentions_message_id, storer);
-  }
-  if (has_max_unavailable_message_id) {
-    store(max_unavailable_message_id, storer);
-  }
-  if (has_last_database_message_id) {
-    store(last_database_message_id, storer);
-  }
-  if (has_message_notification_group) {
-    store(notification_info->message_notification_group_, storer);
-  }
-  if (has_mention_notification_group) {
-    store(notification_info->mention_notification_group_, storer);
-  }
-  if (has_new_secret_chat_notification_id) {
-    store(notification_info->new_secret_chat_notification_id_, storer);
-  }
-  if (has_pinned_message_notification) {
-    store(notification_info->pinned_message_notification_message_id_, storer);
-  }
-  if (has_last_pinned_message_id) {
-    store(last_pinned_message_id, storer);
-  }
-  if (has_max_push_notification_message_id) {
-    store(notification_info->max_push_notification_message_id_, storer);
-  }
-  if (has_folder_id) {
-    store(folder_id, storer);
-  }
-  if (has_pending_read_channel_inbox) {
-    store(pending_read_channel_inbox_pts, storer);
-    store(pending_read_channel_inbox_max_message_id, storer);
-    store(pending_read_channel_inbox_server_unread_count, storer);
-  }
-  if (has_active_group_call_id) {
-    store(active_group_call_id, storer);
-  }
-  if (has_message_ttl) {
-    store(message_ttl, storer);
-  }
-  if (has_default_join_group_call_as_dialog_id) {
-    store(default_join_group_call_as_dialog_id, storer);
-  }
-  if (has_theme_name) {
-    store(theme_name, storer);
-  }
-  if (has_pending_join_requests) {
-    store(pending_join_request_count, storer);
-    store(pending_join_request_user_ids, storer);
-  }
-  if (has_action_bar) {
-    store(action_bar, storer);
-  }
-  if (has_default_send_message_as_dialog_id) {
-    store(default_send_message_as_dialog_id, storer);
-  }
-  if (has_available_reactions) {
-    store(available_reactions, storer);
-  }
-  if (has_available_reactions_generation) {
-    store(available_reactions_generation, storer);
-  }
-  if (has_have_full_history_source) {
-    store(have_full_history_source, storer);
-  }
-  if (has_history_generation) {
-    store(history_generation, storer);
-  }
-  if (has_background) {
-    store(background_info, storer);
-  }
-  if (has_business_bot_manage_bar) {
-    store(business_bot_manage_bar, storer);
-  }
-}
-
-// do not forget to resolve dialog dependencies including dependencies of last_message
-template <class ParserT>
-void MessagesManager::Dialog::parse(ParserT &parser) {
-  using td::parse;
-  bool has_draft_message;
-  bool has_last_database_message;
-  bool legacy_know_can_report_spam;
-  bool has_first_database_message_id;
-  bool legacy_is_pinned;
-  bool has_first_database_message_id_by_index;
-  bool has_message_count_by_index;
-  bool has_client_data;
-  bool has_last_read_all_mentions_message_id;
-  bool has_max_unavailable_message_id;
-  bool has_local_unread_count;
-  bool has_deleted_last_message;
-  bool has_last_clear_history_message_id;
-  bool has_last_database_message_id;
-  bool has_message_notification_group;
-  bool has_mention_notification_group;
-  bool has_new_secret_chat_notification_id;
-  bool has_pinned_message_notification;
-  bool has_last_pinned_message_id;
-  bool has_flags2;
-  bool has_max_push_notification_message_id = false;
-  bool has_folder_id = false;
-  bool has_pending_read_channel_inbox = false;
-  bool has_active_group_call_id = false;
-  bool has_message_ttl = false;
-  bool has_default_join_group_call_as_dialog_id = false;
-  bool has_theme_name = false;
-  bool has_flags3 = false;
-  bool has_pending_join_requests = false;
-  bool action_bar_can_report_spam = false;
-  bool action_bar_can_add_contact = false;
-  bool action_bar_can_block_user = false;
-  bool action_bar_can_share_phone_number = false;
-  bool action_bar_can_report_location = false;
-  bool action_bar_can_unarchive = false;
-  bool action_bar_has_distance = false;
-  bool action_bar_can_invite_members = false;
-  bool has_action_bar = false;
-  bool has_default_send_message_as_dialog_id = false;
-  bool has_legacy_available_reactions = false;
-  bool has_available_reactions_generation = false;
-  bool has_have_full_history_source = false;
-  bool has_available_reactions = false;
-  bool has_history_generation = false;
-  bool has_background = false;
-  bool has_business_bot_manage_bar = false;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_draft_message);
-  PARSE_FLAG(has_last_database_message);
-  PARSE_FLAG(legacy_know_can_report_spam);
-  PARSE_FLAG(action_bar_can_report_spam);
-  PARSE_FLAG(has_first_database_message_id);
-  PARSE_FLAG(legacy_is_pinned);
-  PARSE_FLAG(has_first_database_message_id_by_index);
-  PARSE_FLAG(has_message_count_by_index);
-  PARSE_FLAG(has_client_data);
-  PARSE_FLAG(need_restore_reply_markup);
-  PARSE_FLAG(have_full_history);
-  PARSE_FLAG(has_last_read_all_mentions_message_id);
-  PARSE_FLAG(has_max_unavailable_message_id);
-  PARSE_FLAG(is_last_read_inbox_message_id_inited);
-  PARSE_FLAG(is_last_read_outbox_message_id_inited);
-  PARSE_FLAG(has_local_unread_count);
-  PARSE_FLAG(has_deleted_last_message);
-  PARSE_FLAG(has_last_clear_history_message_id);
-  PARSE_FLAG(is_last_message_deleted_locally);
-  PARSE_FLAG(has_contact_registered_message);
-  PARSE_FLAG(has_last_database_message_id);
-  PARSE_FLAG(need_repair_server_unread_count);
-  PARSE_FLAG(is_marked_as_unread);
-  PARSE_FLAG(has_message_notification_group);
-  PARSE_FLAG(has_mention_notification_group);
-  PARSE_FLAG(has_new_secret_chat_notification_id);
-  PARSE_FLAG(has_pinned_message_notification);
-  PARSE_FLAG(has_last_pinned_message_id);
-  PARSE_FLAG(is_last_pinned_message_id_inited);
-  PARSE_FLAG(has_flags2);
-  END_PARSE_FLAGS();
-
-  parse(dialog_id, parser);  // must be stored at offset 4
-
-  if (has_flags2) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_max_push_notification_message_id);
-    PARSE_FLAG(has_folder_id);
-    PARSE_FLAG(is_folder_id_inited);
-    PARSE_FLAG(has_pending_read_channel_inbox);
-    PARSE_FLAG(know_action_bar);
-    PARSE_FLAG(action_bar_can_add_contact);
-    PARSE_FLAG(action_bar_can_block_user);
-    PARSE_FLAG(action_bar_can_share_phone_number);
-    PARSE_FLAG(action_bar_can_report_location);
-    PARSE_FLAG(has_scheduled_server_messages);
-    PARSE_FLAG(has_scheduled_database_messages);
-    PARSE_FLAG(need_repair_channel_server_unread_count);
-    PARSE_FLAG(action_bar_can_unarchive);
-    PARSE_FLAG(action_bar_has_distance);
-    PARSE_FLAG(has_outgoing_messages);
-    PARSE_FLAG(had_last_yet_unsent_message);
-    PARSE_FLAG(is_blocked);
-    PARSE_FLAG(is_is_blocked_inited);
-    PARSE_FLAG(has_active_group_call);
-    PARSE_FLAG(is_group_call_empty);
-    PARSE_FLAG(has_active_group_call_id);
-    PARSE_FLAG(action_bar_can_invite_members);
-    PARSE_FLAG(has_message_ttl);
-    PARSE_FLAG(is_message_ttl_inited);
-    PARSE_FLAG(has_default_join_group_call_as_dialog_id);
-    PARSE_FLAG(has_bots);
-    PARSE_FLAG(is_has_bots_inited);
-    PARSE_FLAG(is_theme_name_inited);
-    PARSE_FLAG(has_theme_name);
-    PARSE_FLAG(has_flags3);
-    END_PARSE_FLAGS();
-  } else {
-    is_folder_id_inited = false;
-    has_scheduled_server_messages = false;
-    has_scheduled_database_messages = false;
-    need_repair_channel_server_unread_count = false;
-    has_outgoing_messages = false;
-    had_last_yet_unsent_message = false;
-    is_blocked = false;
-    is_is_blocked_inited = false;
-    has_active_group_call = false;
-    is_group_call_empty = false;
-    is_message_ttl_inited = false;
-    has_bots = false;
-    is_has_bots_inited = false;
-    is_theme_name_inited = false;
-  }
-  if (has_flags3) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_pending_join_requests);
-    PARSE_FLAG(need_repair_action_bar);
-    PARSE_FLAG(has_action_bar);
-    PARSE_FLAG(has_default_send_message_as_dialog_id);
-    PARSE_FLAG(need_drop_default_send_message_as_dialog_id);
-    PARSE_FLAG(has_legacy_available_reactions);
-    PARSE_FLAG(is_available_reactions_inited);
-    PARSE_FLAG(has_available_reactions_generation);
-    PARSE_FLAG(has_have_full_history_source);
-    PARSE_FLAG(has_available_reactions);
-    PARSE_FLAG(has_history_generation);
-    PARSE_FLAG(need_repair_unread_reaction_count);
-    PARSE_FLAG(is_translatable);
-    PARSE_FLAG(need_repair_unread_mention_count);
-    PARSE_FLAG(is_background_inited);
-    PARSE_FLAG(has_background);
-    PARSE_FLAG(is_blocked_for_stories);
-    PARSE_FLAG(is_is_blocked_for_stories_inited);
-    PARSE_FLAG(view_as_messages);
-    PARSE_FLAG(is_view_as_messages_inited);
-    PARSE_FLAG(is_forum);
-    PARSE_FLAG(is_saved_messages_view_as_messages_inited);
-    PARSE_FLAG(has_business_bot_manage_bar);
-    END_PARSE_FLAGS();
-  } else {
-    need_repair_action_bar = false;
-    is_available_reactions_inited = false;
-    is_background_inited = false;
-    is_blocked_for_stories = false;
-    is_is_blocked_for_stories_inited = false;
-    view_as_messages = false;
-    is_view_as_messages_inited = false;
-    is_forum = false;
-    is_saved_messages_view_as_messages_inited = false;
-  }
-
-  parse(last_new_message_id, parser);
-  parse(server_unread_count, parser);
-  if (has_local_unread_count) {
-    parse(local_unread_count, parser);
-  }
-  parse(last_read_inbox_message_id, parser);
-  if (last_read_inbox_message_id.is_valid()) {
-    is_last_read_inbox_message_id_inited = true;
-  }
-  parse(last_read_outbox_message_id, parser);
-  if (last_read_outbox_message_id.is_valid()) {
-    is_last_read_outbox_message_id_inited = true;
-  }
-  parse(reply_markup_message_id, parser);
-  parse(notification_settings, parser);
-  if (has_draft_message) {
-    parse(draft_message, parser);
-  }
-  parse(last_clear_history_date, parser);
-  parse(order, parser);
-  if (has_last_database_message) {
-    unique_ptr<Message> last_database_message;
-    parse(last_database_message, parser);
-    auto loaded_last_database_message_id = last_database_message->message_id;
-    if (loaded_last_database_message_id.is_valid()) {
-      messages.set(loaded_last_database_message_id, std::move(last_database_message));
-    }
-  }
-  if (has_first_database_message_id) {
-    parse(first_database_message_id, parser);
-  }
-  if (legacy_is_pinned) {
-    int64 legacy_pinned_order;
-    parse(legacy_pinned_order, parser);
-  }
-  if (has_deleted_last_message) {
-    parse(delete_last_message_date, parser);
-    parse(deleted_last_message_id, parser);
-  }
-  if (has_last_clear_history_message_id) {
-    parse(last_clear_history_message_id, parser);
-  }
-
-  if (has_first_database_message_id_by_index) {
-    int32 size;
-    parse(size, parser);
-    if (static_cast<size_t>(size) > first_database_message_id_by_index.size()) {
-      // the log event is broken
-      return parser.set_error("Wrong first_database_message_id_by_index table size");
-    }
-    for (int32 i = 0; i < size; i++) {
-      parse(first_database_message_id_by_index[i], parser);
-    }
-  }
-  if (has_message_count_by_index) {
-    int32 size;
-    parse(size, parser);
-    if (static_cast<size_t>(size) > message_count_by_index.size()) {
-      // the log event is broken
-      return parser.set_error("Wrong message_count_by_index table size");
-    }
-    for (int32 i = 0; i < size; i++) {
-      parse(message_count_by_index[i], parser);
-    }
-  }
-  unread_mention_count = message_count_by_index[message_search_filter_index(MessageSearchFilter::UnreadMention)];
-  LOG(INFO) << "Set unread mention message count in " << dialog_id << " to " << unread_mention_count;
-  if (unread_mention_count < 0) {
-    unread_mention_count = 0;
-  }
-  unread_reaction_count = message_count_by_index[message_search_filter_index(MessageSearchFilter::UnreadReaction)];
-  LOG(INFO) << "Set unread reaction count in " << dialog_id << " to " << unread_reaction_count;
-  if (unread_reaction_count < 0) {
-    unread_reaction_count = 0;
-  }
-  if (has_client_data) {
-    parse(client_data, parser);
-  }
-  if (has_last_read_all_mentions_message_id) {
-    parse(last_read_all_mentions_message_id, parser);
-  }
-  if (has_max_unavailable_message_id) {
-    parse(max_unavailable_message_id, parser);
-  }
-  if (has_last_database_message_id) {
-    parse(last_database_message_id, parser);
-  }
-  if (has_message_notification_group) {
-    parse(add_dialog_notification_info(this)->message_notification_group_, parser);
-  }
-  if (has_mention_notification_group) {
-    parse(add_dialog_notification_info(this)->mention_notification_group_, parser);
-  }
-  if (has_new_secret_chat_notification_id) {
-    parse(add_dialog_notification_info(this)->new_secret_chat_notification_id_, parser);
-  }
-  if (has_pinned_message_notification) {
-    parse(add_dialog_notification_info(this)->pinned_message_notification_message_id_, parser);
-  }
-  if (has_last_pinned_message_id) {
-    parse(last_pinned_message_id, parser);
-  }
-  if (has_max_push_notification_message_id) {
-    parse(add_dialog_notification_info(this)->max_push_notification_message_id_, parser);
-  }
-  if (has_folder_id) {
-    parse(folder_id, parser);
-  }
-  if (has_pending_read_channel_inbox) {
-    parse(pending_read_channel_inbox_pts, parser);
-    parse(pending_read_channel_inbox_max_message_id, parser);
-    parse(pending_read_channel_inbox_server_unread_count, parser);
-  }
-  int32 action_bar_distance = -1;
-  if (action_bar_has_distance) {
-    parse(action_bar_distance, parser);
-  }
-  if (has_active_group_call_id) {
-    parse(active_group_call_id, parser);
-  }
-  if (has_message_ttl) {
-    parse(message_ttl, parser);
-  }
-  if (has_default_join_group_call_as_dialog_id) {
-    parse(default_join_group_call_as_dialog_id, parser);
-  }
-  if (has_theme_name) {
-    parse(theme_name, parser);
-  }
-  if (has_pending_join_requests) {
-    parse(pending_join_request_count, parser);
-    parse(pending_join_request_user_ids, parser);
-  }
-  if (has_action_bar) {
-    parse(action_bar, parser);
-  }
-  if (has_default_send_message_as_dialog_id) {
-    parse(default_send_message_as_dialog_id, parser);
-  }
-  if (has_available_reactions) {
-    parse(available_reactions, parser);
-  } else if (has_legacy_available_reactions) {
-    vector<ReactionType> legacy_available_reaction_types;
-    parse(legacy_available_reaction_types, parser);
-    available_reactions = ChatReactions::legacy(std::move(legacy_available_reaction_types));
-  }
-  if (has_available_reactions_generation) {
-    parse(available_reactions_generation, parser);
-  }
-  if (has_have_full_history_source) {
-    parse(have_full_history_source, parser);
-  }
-  if (has_history_generation) {
-    parse(history_generation, parser);
-  }
-  if (has_background) {
-    parse(background_info, parser);
-  }
-  if (has_business_bot_manage_bar) {
-    parse(business_bot_manage_bar, parser);
-  }
-
-  (void)legacy_know_can_report_spam;
-  if (know_action_bar && !has_action_bar) {
-    action_bar = DialogActionBar::create_legacy(
-        action_bar_can_report_spam, action_bar_can_add_contact, action_bar_can_block_user,
-        action_bar_can_share_phone_number, action_bar_can_report_location, action_bar_can_unarchive,
-        has_outgoing_messages ? -1 : action_bar_distance, action_bar_can_invite_members);
-  }
-}
-
-template <class StorerT>
-void MessagesManager::CallsDbState::store(StorerT &storer) const {
-  using td::store;
-  store(static_cast<int32>(first_calls_database_message_id_by_index.size()), storer);
-  for (auto first_message_id : first_calls_database_message_id_by_index) {
-    store(first_message_id, storer);
-  }
-  store(static_cast<int32>(message_count_by_index.size()), storer);
-  for (auto message_count : message_count_by_index) {
-    store(message_count, storer);
-  }
-}
-
-template <class ParserT>
-void MessagesManager::CallsDbState::parse(ParserT &parser) {
-  using td::parse;
-  int32 size;
-  parse(size, parser);
-  if (static_cast<size_t>(size) > first_calls_database_message_id_by_index.size()) {
-    return parser.set_error("Wrong first_calls_database_message_id_by_index table size");
-  }
-  for (int32 i = 0; i < size; i++) {
-    parse(first_calls_database_message_id_by_index[i], parser);
-  }
-  parse(size, parser);
-  if (static_cast<size_t>(size) > message_count_by_index.size()) {
-    return parser.set_error("Wrong message_count_by_index table size");
-  }
-  for (int32 i = 0; i < size; i++) {
-    parse(message_count_by_index[i], parser);
-  }
-}
-
-void MessagesManager::load_calls_db_state() {
-  if (!G()->use_message_database()) {
-    return;
-  }
-  std::fill(calls_db_state_.message_count_by_index.begin(), calls_db_state_.message_count_by_index.end(), -1);
-  auto value = G()->td_db()->get_sqlite_sync_pmc()->get("calls_db_state");
-  if (value.empty()) {
-    return;
-  }
-  log_event_parse(calls_db_state_, value).ensure();
-  LOG(INFO) << "Save calls database state " << calls_db_state_.first_calls_database_message_id_by_index[0] << " ("
-            << calls_db_state_.message_count_by_index[0] << ") "
-            << calls_db_state_.first_calls_database_message_id_by_index[1] << " ("
-            << calls_db_state_.message_count_by_index[1] << ")";
-}
-
-void MessagesManager::save_calls_db_state() {
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  LOG(INFO) << "Save calls database state " << calls_db_state_.first_calls_database_message_id_by_index[0] << " ("
-            << calls_db_state_.message_count_by_index[0] << ") "
-            << calls_db_state_.first_calls_database_message_id_by_index[1] << " ("
-            << calls_db_state_.message_count_by_index[1] << ")";
-  G()->td_db()->get_sqlite_pmc()->set("calls_db_state", log_event_store(calls_db_state_).as_slice().str(), Auto());
-}
-
-MessagesManager::Message::~Message() = default;
-
-MessagesManager::MessagesManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_media_callback_ = std::make_shared<UploadMediaCallback>();
-  upload_thumbnail_callback_ = std::make_shared<UploadThumbnailCallback>();
-
-  channel_get_difference_timeout_.set_callback(on_channel_get_difference_timeout_callback);
-  channel_get_difference_timeout_.set_callback_data(static_cast<void *>(this));
-
-  channel_get_difference_retry_timeout_.set_callback(on_channel_get_difference_timeout_callback);
-  channel_get_difference_retry_timeout_.set_callback_data(static_cast<void *>(this));
-
-  pending_message_views_timeout_.set_callback(on_pending_message_views_timeout_callback);
-  pending_message_views_timeout_.set_callback_data(static_cast<void *>(this));
-
-  pending_message_live_location_view_timeout_.set_callback(on_pending_message_live_location_view_timeout_callback);
-  pending_message_live_location_view_timeout_.set_callback_data(static_cast<void *>(this));
-
-  pending_draft_message_timeout_.set_callback(on_pending_draft_message_timeout_callback);
-  pending_draft_message_timeout_.set_callback_data(static_cast<void *>(this));
-
-  pending_read_history_timeout_.set_callback(on_pending_read_history_timeout_callback);
-  pending_read_history_timeout_.set_callback_data(static_cast<void *>(this));
-
-  pending_updated_dialog_timeout_.set_callback(on_pending_updated_dialog_timeout_callback);
-  pending_updated_dialog_timeout_.set_callback_data(static_cast<void *>(this));
-
-  pending_unload_dialog_timeout_.set_callback(on_pending_unload_dialog_timeout_callback);
-  pending_unload_dialog_timeout_.set_callback_data(static_cast<void *>(this));
-
-  dialog_unmute_timeout_.set_callback(on_dialog_unmute_timeout_callback);
-  dialog_unmute_timeout_.set_callback_data(static_cast<void *>(this));
-
-  pending_send_dialog_action_timeout_.set_callback(on_pending_send_dialog_action_timeout_callback);
-  pending_send_dialog_action_timeout_.set_callback_data(static_cast<void *>(this));
-
-  preload_folder_dialog_list_timeout_.set_callback(on_preload_folder_dialog_list_timeout_callback);
-  preload_folder_dialog_list_timeout_.set_callback_data(static_cast<void *>(this));
-
-  update_viewed_messages_timeout_.set_callback(on_update_viewed_messages_timeout_callback);
-  update_viewed_messages_timeout_.set_callback_data(static_cast<void *>(this));
-
-  send_update_chat_read_inbox_timeout_.set_callback(on_send_update_chat_read_inbox_timeout_callback);
-  send_update_chat_read_inbox_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-MessagesManager::~MessagesManager() {
-  Scheduler::instance()->destroy_on_scheduler(
-      G()->get_gc_scheduler_id(), ttl_nodes_, ttl_heap_, being_sent_messages_, update_message_ids_,
-      update_scheduled_message_ids_, message_id_to_dialog_id_, last_clear_history_message_id_to_dialog_id_, dialogs_,
-      postponed_chat_read_inbox_updates_, message_embedding_codes_[0], message_embedding_codes_[1],
-      message_to_replied_media_timestamp_messages_, story_to_replied_media_timestamp_messages_,
-      notification_group_id_to_dialog_id_, pending_get_channel_differences_, active_get_channel_differences_,
-      get_channel_difference_to_log_event_id_, channel_get_difference_retry_timeouts_, is_channel_difference_finished_,
-      expected_channel_pts_, expected_channel_max_message_id_, dialog_bot_command_message_ids_,
-      message_full_id_to_file_source_id_, last_outgoing_forwarded_message_date_, dialog_viewed_messages_,
-      previous_repaired_read_inbox_max_message_id_, failed_to_load_dialogs_);
-}
-
-MessagesManager::AddDialogData::AddDialogData(int32 dependent_dialog_count, unique_ptr<Message> &&last_message,
-                                              unique_ptr<DraftMessage> &&draft_message)
-    : dependent_dialog_count_(dependent_dialog_count)
-    , last_message_(std::move(last_message))
-    , draft_message_(std::move(draft_message)) {
-}
-
-void MessagesManager::on_channel_get_difference_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::on_channel_get_difference_timeout,
-                     DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_pending_message_views_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::on_pending_message_views_timeout,
-                     DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_pending_message_live_location_view_timeout_callback(void *messages_manager_ptr,
-                                                                             int64 task_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager),
-                     &MessagesManager::view_message_live_location_on_server, task_id);
-}
-
-void MessagesManager::on_pending_draft_message_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager),
-                     &MessagesManager::save_dialog_draft_message_on_server, DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_pending_read_history_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::do_read_history_on_server,
-                     DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_pending_updated_dialog_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  // no check for G()->close_flag() to save dialogs even while closing
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  // TODO it is unsafe to save dialog to database before binlog is flushed
-
-  // no send_closure_later, because messages_manager can be not an actor while closing
-  messages_manager->save_dialog_to_database(DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_pending_unload_dialog_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::unload_dialog,
-                     DialogId(dialog_id_int), -1);
-}
-
-void MessagesManager::on_dialog_unmute_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::on_dialog_unmute,
-                     DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_pending_send_dialog_action_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::on_send_dialog_action_timeout,
-                     DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_preload_folder_dialog_list_timeout_callback(void *messages_manager_ptr, int64 folder_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::preload_folder_dialog_list,
-                     FolderId(narrow_cast<int32>(folder_id_int)));
-}
-
-void MessagesManager::on_update_viewed_messages_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::on_update_viewed_messages_timeout,
-                     DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_send_update_chat_read_inbox_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager),
-                     &MessagesManager::on_send_update_chat_read_inbox_timeout, DialogId(dialog_id_int));
-}
-
-void MessagesManager::on_live_location_expire_timeout_callback(void *messages_manager_ptr) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager), &MessagesManager::on_live_location_expire_timeout);
-}
-
-void MessagesManager::on_live_location_expire_timeout() {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  vector<MessageFullId> to_delete_message_full_ids;
-  for (const auto &message_full_id : active_live_location_message_full_ids_) {
-    auto m = get_message(message_full_id);
-    CHECK(m != nullptr);
-    auto live_period = get_message_content_live_location_period(m->content.get());
-    if (live_period <= G()->unix_time() - m->date) {
-      to_delete_message_full_ids.push_back(message_full_id);
-    }
-  }
-  if (to_delete_message_full_ids.empty()) {
-    LOG(INFO) << "Have no messages to delete";
-    schedule_active_live_location_expiration();
-  } else {
-    for (auto message_full_id : to_delete_message_full_ids) {
-      bool is_deleted = delete_active_live_location(message_full_id);
-      CHECK(is_deleted);
-    }
-    send_update_active_live_location_messages();
-    save_active_live_locations();
-  }
-}
-
-BufferSlice MessagesManager::get_dialog_database_value(const Dialog *d) {
-  // can't use log_event_store, because it tries to parse stored Dialog
-  LogEventStorerCalcLength storer_calc_length;
-  store(*d, storer_calc_length);
-
-  BufferSlice value_buffer{storer_calc_length.get_length()};
-  auto value = value_buffer.as_mutable_slice();
-
-  LogEventStorerUnsafe storer_unsafe(value.ubegin());
-  store(*d, storer_unsafe);
-  return value_buffer;
-}
-
-void MessagesManager::save_dialog_to_database(DialogId dialog_id) {
-  CHECK(G()->use_message_database());
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  LOG(INFO) << "Save " << dialog_id << " to database";
-  vector<NotificationGroupKey> changed_group_keys;
-  if (d->notification_info != nullptr) {
-    d->notification_info->message_notification_group_.add_group_key_if_changed(changed_group_keys, dialog_id);
-    d->notification_info->mention_notification_group_.add_group_key_if_changed(changed_group_keys, dialog_id);
-  }
-  bool can_reuse_notification_group = false;
-  for (auto &group_key : changed_group_keys) {
-    if (group_key.dialog_id == DialogId()) {
-      can_reuse_notification_group = true;
-    }
-  }
-  G()->td_db()->get_dialog_db_async()->add_dialog(
-      dialog_id, d->folder_id, d->order, get_dialog_database_value(d), std::move(changed_group_keys),
-      PromiseCreator::lambda([dialog_id, can_reuse_notification_group](Result<> result) {
-        send_closure(G()->messages_manager(), &MessagesManager::on_save_dialog_to_database, dialog_id,
-                     can_reuse_notification_group, result.is_ok());
-      }));
-}
-
-void MessagesManager::on_save_dialog_to_database(DialogId dialog_id, bool can_reuse_notification_group, bool success) {
-  LOG(INFO) << "Successfully saved " << dialog_id << " to database";
-
-  if (success && can_reuse_notification_group && !G()->close_flag()) {
-    auto d = get_dialog(dialog_id);
-    CHECK(d != nullptr);
-    if (d->notification_info != nullptr) {
-      try_reuse_notification_group(d->notification_info->message_notification_group_);
-      try_reuse_notification_group(d->notification_info->mention_notification_group_);
-    }
-  }
-
-  // TODO erase some events from binlog
-}
-
-void MessagesManager::try_reuse_notification_group(NotificationGroupInfo &group_info) {
-  auto group_id = group_info.get_reused_group_id();
-  if (group_id.is_valid()) {
-    send_closure_later(G()->notification_manager(), &NotificationManager::try_reuse_notification_group_id, group_id);
-    notification_group_id_to_dialog_id_.erase(group_id);
-  }
-}
-
-void MessagesManager::invalidate_message_indexes(Dialog *d) {
-  CHECK(d != nullptr);
-  bool is_secret = d->dialog_id.get_type() == DialogType::SecretChat;
-  for (size_t i = 0; i < d->message_count_by_index.size(); i++) {
-    if (is_secret || i == static_cast<size_t>(message_search_filter_index(MessageSearchFilter::FailedToSend))) {
-      // always know all messages
-      d->first_database_message_id_by_index[i] = MessageId::min();
-      // keep the count
-    } else {
-      // some messages are unknown; drop first_database_message_id and count
-      d->first_database_message_id_by_index[i] = MessageId();
-      d->message_count_by_index[i] = -1;
-    }
-  }
-}
-
-void MessagesManager::update_message_count_by_index(Dialog *d, int diff, const Message *m) {
-  auto index_mask = get_message_index_mask(d->dialog_id, m);
-  index_mask &= ~message_search_filter_index_mask(
-      MessageSearchFilter::UnreadMention);  // unread mention count has been already manually updated
-  index_mask &= ~message_search_filter_index_mask(
-      MessageSearchFilter::UnreadReaction);  // unread reaction count has been already manually updated
-
-  update_message_count_by_index(d, diff, index_mask);
-}
-
-void MessagesManager::update_message_count_by_index(Dialog *d, int diff, int32 index_mask) {
-  if (index_mask == 0) {
-    return;
-  }
-
-  LOG(INFO) << "Update message count by " << diff << " in index mask " << index_mask;
-  int i = 0;
-  for (auto &message_count : d->message_count_by_index) {
-    if (((index_mask >> i) & 1) != 0 && message_count != -1) {
-      message_count += diff;
-      if (message_count < 0) {
-        if (d->dialog_id.get_type() == DialogType::SecretChat ||
-            i == message_search_filter_index(MessageSearchFilter::FailedToSend)) {
-          message_count = 0;
-        } else {
-          message_count = -1;
-        }
-      }
-      on_dialog_updated(d->dialog_id, "update_message_count_by_index");
-    }
-    i++;
-  }
-
-  i = static_cast<int>(MessageSearchFilter::Call) - 1;
-  for (auto &message_count : calls_db_state_.message_count_by_index) {
-    if (((index_mask >> i) & 1) != 0 && message_count != -1) {
-      message_count += diff;
-      if (message_count < 0) {
-        if (d->dialog_id.get_type() == DialogType::SecretChat) {
-          message_count = 0;
-        } else {
-          message_count = -1;
-        }
-      }
-      save_calls_db_state();
-    }
-    i++;
-  }
-}
-
-int32 MessagesManager::get_message_index_mask(DialogId dialog_id, const Message *m) const {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || m->message_id.is_scheduled() || m->message_id.is_yet_unsent()) {
-    return 0;
-  }
-  if (m->is_failed_to_send) {
-    return message_search_filter_index_mask(MessageSearchFilter::FailedToSend);
-  }
-  bool is_secret = dialog_id.get_type() == DialogType::SecretChat;
-  if (!m->message_id.is_server() && !is_secret) {
-    return 0;
-  }
-
-  int32 index_mask = 0;
-  if (m->is_pinned) {
-    index_mask |= message_search_filter_index_mask(MessageSearchFilter::Pinned);
-  }
-  // retain second condition just in case
-  if (m->is_content_secret || (!m->ttl.is_empty() && !is_secret)) {
-    return index_mask;
-  }
-  index_mask |= get_message_content_index_mask(m->content.get(), td_, m->is_outgoing);
-  if (m->contains_mention) {
-    index_mask |= message_search_filter_index_mask(MessageSearchFilter::Mention);
-    if (m->contains_unread_mention) {
-      index_mask |= message_search_filter_index_mask(MessageSearchFilter::UnreadMention);
-    }
-  }
-  if (has_unread_message_reactions(dialog_id, m)) {
-    index_mask |= message_search_filter_index_mask(MessageSearchFilter::UnreadReaction);
-  }
-  LOG(INFO) << "Have index mask " << index_mask << " for " << m->message_id << " in " << dialog_id;
-  return index_mask;
-}
-
-void MessagesManager::update_reply_count_by_message(Dialog *d, int diff, const Message *m) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || !m->top_thread_message_id.is_valid() ||
-      m->top_thread_message_id == m->message_id || !m->message_id.is_valid() || !m->message_id.is_server()) {
-    return;
-  }
-
-  update_message_reply_count(d, m->top_thread_message_id, get_message_sender(m), m->message_id,
-                             diff < 0 ? G()->unix_time() : m->date, diff);
-}
-
-void MessagesManager::update_message_reply_count(Dialog *d, MessageId message_id, DialogId replier_dialog_id,
-                                                 MessageId reply_message_id, int32 update_date, int diff,
-                                                 bool is_recursive) {
-  if (d == nullptr) {
-    return;
-  }
-
-  Message *m = get_message(d, message_id);
-  if (m == nullptr || !is_active_message_reply_info(d->dialog_id, m->reply_info)) {
-    return;
-  }
-  LOG(INFO) << "Update reply count to " << message_id << " in " << d->dialog_id << " by " << diff << " from "
-            << reply_message_id << " sent by " << replier_dialog_id;
-  if (m->interaction_info_update_date < update_date &&
-      m->reply_info.add_reply(replier_dialog_id, reply_message_id, diff)) {
-    on_message_reply_info_changed(d->dialog_id, m);
-    on_message_changed(d, m, true, "update_message_reply_count_by_message");
-  }
-
-  if (!is_recursive && is_discussion_message(d->dialog_id, m)) {
-    auto linked_message_full_id = m->forward_info->get_last_message_full_id();
-    update_message_reply_count(get_dialog(linked_message_full_id.get_dialog_id()),
-                               linked_message_full_id.get_message_id(), replier_dialog_id, reply_message_id,
-                               update_date, diff, true);
-  }
-}
-
-bool MessagesManager::have_dialog_scheduled_messages_in_memory(const Dialog *d) {
-  return d->scheduled_messages != nullptr && !d->scheduled_messages->scheduled_messages_.empty();
-}
-
-bool MessagesManager::is_allowed_useless_update(const tl_object_ptr<telegram_api::Update> &update) {
-  auto constructor_id = update->get_id();
-  if (constructor_id == dummyUpdate::ID) {
-    // allow dummyUpdate just in case
-    return true;
-  }
-  if (constructor_id == telegram_api::updateNewMessage::ID ||
-      constructor_id == telegram_api::updateNewChannelMessage::ID) {
-    // new outgoing messages are received again if random_id coincide
-    return true;
-  }
-
-  return false;
-}
-
-void MessagesManager::skip_old_pending_pts_update(tl_object_ptr<telegram_api::Update> &&update, int32 new_pts,
-                                                  int32 old_pts, int32 pts_count, const char *source) {
-  LOG(DEBUG) << "Skip old update with PTS = " << new_pts << ", current PTS = " << old_pts;
-  if (update->get_id() == telegram_api::updateNewMessage::ID) {
-    auto update_new_message = static_cast<telegram_api::updateNewMessage *>(update.get());
-    auto message_full_id = MessageFullId::get_message_full_id(update_new_message->message_, false);
-    if (update_message_ids_.count(message_full_id) > 0) {
-      // apply the sent message anyway, even it could have been deleted or edited already
-
-      CHECK(message_full_id.get_dialog_id().get_type() == DialogType::User ||
-            message_full_id.get_dialog_id().get_type() == DialogType::Chat);  // checked in check_pts_update
-      delete_messages_from_updates({message_full_id.get_message_id()}, false);
-
-      auto added_message_full_id = on_get_message(std::move(update_new_message->message_), true, false, false,
-                                                  "updateNewMessage with an awaited message");
-      if (added_message_full_id != message_full_id) {
-        LOG(ERROR) << "Failed to add an awaited " << message_full_id << " from " << source;
-      }
-      return;
-    }
-  }
-  if (update->get_id() == updateSentMessage::ID) {
-    auto update_sent_message = static_cast<updateSentMessage *>(update.get());
-    if (being_sent_messages_.count(update_sent_message->random_id_) > 0) {
-      // apply the sent message anyway, even it could have been deleted or edited already
-      delete_messages_from_updates({update_sent_message->message_id_}, false);
-      on_send_message_success(update_sent_message->random_id_, update_sent_message->message_id_,
-                              update_sent_message->date_, update_sent_message->ttl_period_, FileId(),
-                              "process old updateSentMessage");
-      return;
-    }
-    return;
-  }
-
-  // very old or useless update
-  LOG_IF(WARNING, new_pts == old_pts && pts_count == 0 && !is_allowed_useless_update(update))
-      << "Receive useless update " << oneline(to_string(update)) << " from " << source;
-}
-
-MessagesManager::Dialog *MessagesManager::get_service_notifications_dialog() {
-  UserId service_notifications_user_id = td_->user_manager_->add_service_notifications_user();
-  DialogId service_notifications_dialog_id(service_notifications_user_id);
-  force_create_dialog(service_notifications_dialog_id, "get_service_notifications_dialog");
-  return get_dialog(service_notifications_dialog_id);
-}
-
-void MessagesManager::extract_authentication_codes(DialogId dialog_id, const Message *m,
-                                                   vector<string> &authentication_codes) {
-  CHECK(m != nullptr);
-  if (dialog_id != DialogId(UserManager::get_service_notifications_user_id()) || !m->message_id.is_valid() ||
-      !m->message_id.is_server() || m->content->get_type() != MessageContentType::Text || m->is_outgoing) {
-    return;
-  }
-  auto *formatted_text = get_message_content_text(m->content.get());
-  CHECK(formatted_text != nullptr);
-  const string &text = formatted_text->text;
-  for (size_t i = 0; i < text.size(); i++) {
-    if (is_digit(text[i])) {
-      string code;
-      do {
-        if (is_digit(text[i])) {
-          code += text[i++];
-          continue;
-        }
-        if (text[i] == '-') {
-          i++;
-          continue;
-        }
-        break;
-      } while (true);
-      if (5 <= code.size() && code.size() <= 7) {
-        authentication_codes.push_back(code);
-      }
-    }
-  }
-}
-
-void MessagesManager::save_auth_notification_ids() {
-  auto min_date = G()->unix_time() - AUTH_NOTIFICATION_ID_CACHE_TIME;
-  vector<string> stored_ids;
-  for (const auto &it : auth_notification_id_date_) {
-    auto date = it.second;
-    if (date < min_date) {
-      continue;
-    }
-    stored_ids.push_back(it.first);
-    stored_ids.push_back(to_string(date));
-  }
-
-  if (stored_ids.empty()) {
-    G()->td_db()->get_binlog_pmc()->erase("auth_notification_ids");
-    return;
-  }
-
-  G()->td_db()->get_binlog_pmc()->set("auth_notification_ids", implode(stored_ids, ','));
-}
-
-void MessagesManager::on_update_service_notification(tl_object_ptr<telegram_api::updateServiceNotification> &&update,
-                                                     bool skip_new_entities, Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  bool has_date = update->inbox_date_ != 0;
-  auto date = has_date ? update->inbox_date_ : G()->unix_time();
-  if (date <= 0) {
-    LOG(ERROR) << "Receive message date " << date << " in " << to_string(update);
-    return;
-  }
-  bool is_auth_notification = update->type_.size() >= 5 && begins_with(update->type_, "auth");
-  if (is_auth_notification) {
-    auto &old_date = auth_notification_id_date_[update->type_.substr(4)];
-    if (date <= old_date) {
-      LOG(INFO) << "Skip already applied " << to_string(update);
-      return;
-    }
-    old_date = date;
-
-    if (auth_notification_id_date_.size() > MAX_SAVED_AUTH_NOTIFICATION_IDS) {
-      auto min_date = date + 1;
-      const string *min_key = nullptr;
-      for (const auto &it : auth_notification_id_date_) {
-        if (it.second < min_date) {
-          min_date = it.second;
-          min_key = &it.first;
-        }
-      }
-      CHECK(min_key != nullptr);
-      auth_notification_id_date_.erase(*min_key);
-    }
-  }
-
-  bool is_authorized = td_->auth_manager_->is_authorized();
-  bool is_user = is_authorized && !td_->auth_manager_->is_bot();
-  auto user_manager = is_authorized ? td_->user_manager_.get() : nullptr;
-  auto message_text = get_message_text(user_manager, std::move(update->message_), std::move(update->entities_),
-                                       skip_new_entities, !is_user, date, false, "on_update_service_notification");
-  DialogId owner_dialog_id = is_user ? get_service_notifications_dialog()->dialog_id : DialogId();
-  MessageSelfDestructType ttl;
-  bool disable_web_page_preview = false;
-  auto content = get_message_content(td_, std::move(message_text), std::move(update->media_), owner_dialog_id, date,
-                                     false, UserId(), &ttl, &disable_web_page_preview, "updateServiceNotification");
-  bool is_content_secret = ttl.is_secret_message_content(content->get_type());
-
-  if (update->popup_) {
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateServiceNotification>(
-                     update->type_,
-                     get_message_content_object(content.get(), td_, owner_dialog_id, MessageId(ServerMessageId(1)),
-                                                false, owner_dialog_id, date, is_content_secret, true, -1,
-                                                update->invert_media_, disable_web_page_preview)));
-  }
-  if (has_date && is_user) {
-    Dialog *d = get_service_notifications_dialog();
-    CHECK(d != nullptr);
-    auto dialog_id = d->dialog_id;
-    CHECK(dialog_id.get_type() == DialogType::User);
-
-    auto new_message = make_unique<Message>();
-    new_message->message_id = get_next_local_message_id(d);
-    new_message->sender_user_id = dialog_id.get_user_id();
-    new_message->date = date;
-    new_message->ttl = ttl;
-    new_message->disable_web_page_preview = disable_web_page_preview;
-    new_message->is_content_secret = is_content_secret;
-    new_message->invert_media = update->invert_media_;
-    new_message->content = std::move(content);
-
-    bool need_update = true;
-    bool need_update_dialog_pos = false;
-
-    Dependencies dependencies;
-    add_message_dependencies(dependencies, new_message.get());
-    for (auto dependent_dialog_id : dependencies.get_dialog_ids()) {
-      force_create_dialog(dependent_dialog_id, "on_update_service_notification", true);
-    }
-
-    const Message *m = add_message_to_dialog(d, std::move(new_message), false, true, &need_update,
-                                             &need_update_dialog_pos, "on_update_service_notification");
-    if (m != nullptr && need_update) {
-      send_update_new_message(d, m);
-    }
-    register_new_local_message_id(d, m);
-
-    if (need_update_dialog_pos) {
-      send_update_chat_last_message(d, "on_update_service_notification");
-    }
-  }
-  promise.set_value(Unit());
-
-  if (is_auth_notification) {
-    save_auth_notification_ids();
-  }
-}
-
-void MessagesManager::on_update_read_channel_inbox(tl_object_ptr<telegram_api::updateReadChannelInbox> &&update) {
-  ChannelId channel_id(update->channel_id_);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id << " in updateReadChannelInbox";
-    return;
-  }
-  on_update_dialog_folder_id(DialogId(channel_id), FolderId(update->folder_id_));
-  on_read_channel_inbox(channel_id, MessageId(ServerMessageId(update->max_id_)), update->still_unread_count_,
-                        update->pts_, "updateReadChannelInbox");
-}
-
-void MessagesManager::on_update_read_channel_outbox(tl_object_ptr<telegram_api::updateReadChannelOutbox> &&update) {
-  ChannelId channel_id(update->channel_id_);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id << " in updateReadChannelOutbox";
-    return;
-  }
-
-  DialogId dialog_id = DialogId(channel_id);
-  read_history_outbox(dialog_id, MessageId(ServerMessageId(update->max_id_)));
-}
-
-void MessagesManager::on_update_read_channel_messages_contents(
-    tl_object_ptr<telegram_api::updateChannelReadMessagesContents> &&update) {
-  ChannelId channel_id(update->channel_id_);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id << " in updateChannelReadMessagesContents";
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  DialogId dialog_id = DialogId(channel_id);
-
-  Dialog *d = get_dialog_force(dialog_id, "on_update_read_channel_messages_contents");
-  if (d == nullptr) {
-    LOG(INFO) << "Receive read channel messages contents update in unknown " << dialog_id;
-    return;
-  }
-
-  if (update->top_msg_id_ > 0) {
-    // TODO
-    return;
-  }
-
-  for (auto &server_message_id : update->messages_) {
-    read_channel_message_content_from_updates(d, MessageId(ServerMessageId(server_message_id)));
-  }
-}
-
-void MessagesManager::on_update_read_message_comments(DialogId dialog_id, MessageId message_id,
-                                                      MessageId max_message_id, MessageId last_read_inbox_message_id,
-                                                      MessageId last_read_outbox_message_id, int32 unread_count) {
-  Dialog *d = get_dialog_force(dialog_id, "on_update_read_message_comments");
-  if (d == nullptr) {
-    LOG(INFO) << "Ignore update of read message comments in unknown " << dialog_id << " in updateReadDiscussion";
-    return;
-  }
-
-  auto m = get_message_force(d, message_id, "on_update_read_message_comments");
-  if (m == nullptr || !m->message_id.is_server() || m->top_thread_message_id != m->message_id) {
-    return;
-  }
-  if (m->is_topic_message) {
-    td_->forum_topic_manager_->on_update_forum_topic_unread(
-        dialog_id, message_id, max_message_id, last_read_inbox_message_id, last_read_outbox_message_id, unread_count);
-  }
-  if (!is_active_message_reply_info(dialog_id, m->reply_info)) {
-    return;
-  }
-  if (m->reply_info.update_max_message_ids(max_message_id, last_read_inbox_message_id, last_read_outbox_message_id)) {
-    on_message_reply_info_changed(dialog_id, m);
-    on_message_changed(d, m, true, "on_update_read_message_comments");
-  }
-}
-
-void MessagesManager::on_update_channel_too_long(tl_object_ptr<telegram_api::updateChannelTooLong> &&update,
-                                                 bool force_apply) {
-  ChannelId channel_id(update->channel_id_);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id << " in updateChannelTooLong";
-    return;
-  }
-  if (!td_->chat_manager_->have_channel_force(channel_id, "on_update_channel_too_long")) {
-    LOG(INFO) << "Skip updateChannelTooLong about unknown " << channel_id;
-    return;
-  }
-
-  DialogId dialog_id = DialogId(channel_id);
-  auto d = get_dialog_force(dialog_id, "on_update_channel_too_long 4");
-  if (d == nullptr) {
-    auto pts = load_channel_pts(dialog_id);
-    if (pts > 0) {
-      d = add_dialog(dialog_id, "on_update_channel_too_long 5");
-      CHECK(d != nullptr);
-      CHECK(d->pts == pts);
-      update_dialog_pos(d, "on_update_channel_too_long 6");
-    }
-  }
-
-  if (d != nullptr) {
-    if (update->pts_ == 0 || update->pts_ > d->pts) {
-      get_channel_difference(dialog_id, d->pts, update->pts_, MessageId(), true, "on_update_channel_too_long 1");
-    }
-  } else {
-    if (force_apply) {
-      get_channel_difference(dialog_id, -1, update->pts_, MessageId(), true, "on_update_channel_too_long 2");
-    } else {
-      td_->updates_manager_->schedule_get_difference("on_update_channel_too_long 3");
-    }
-  }
-}
-
-void MessagesManager::on_update_message_view_count(MessageFullId message_full_id, int32 view_count) {
-  if (view_count < 0) {
-    LOG(ERROR) << "Receive " << view_count << " views in updateChannelMessageViews for " << message_full_id;
-    return;
-  }
-  update_message_interaction_info(message_full_id, view_count, -1, false, nullptr, false, nullptr);
-}
-
-void MessagesManager::on_update_message_forward_count(MessageFullId message_full_id, int32 forward_count) {
-  if (forward_count < 0) {
-    LOG(ERROR) << "Receive " << forward_count << " forwards in updateChannelMessageForwards for " << message_full_id;
-    return;
-  }
-  update_message_interaction_info(message_full_id, -1, forward_count, false, nullptr, false, nullptr);
-}
-
-void MessagesManager::on_update_message_reactions(MessageFullId message_full_id,
-                                                  tl_object_ptr<telegram_api::messageReactions> &&reactions,
-                                                  Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto new_reactions = MessageReactions::get_message_reactions(td_, std::move(reactions), td_->auth_manager_->is_bot());
-  if (!have_message_force(message_full_id, "on_update_message_reactions")) {
-    auto dialog_id = message_full_id.get_dialog_id();
-    if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-      LOG(INFO) << "Ignore updateMessageReaction in inaccessible " << message_full_id;
-      promise.set_value(Unit());
-      return;
-    }
-    Dialog *d = get_dialog(dialog_id);
-    if (d == nullptr) {
-      LOG(INFO) << "Ignore updateMessageReaction in unknown " << dialog_id;
-      promise.set_value(Unit());
-      return;
-    }
-
-    // there is no message, so the update can be ignored
-    if ((new_reactions != nullptr && !new_reactions->unread_reactions_.empty()) || d->unread_reaction_count > 0) {
-      // but if there are unread reactions or the chat has unread reactions,
-      // then number of unread reactions could have been changed, so reload the number of unread reactions
-      repair_dialog_unread_reaction_count(d, std::move(promise), "on_update_message_reactions");
-    } else {
-      promise.set_value(Unit());
-    }
-    return;
-  }
-
-  update_message_interaction_info(message_full_id, -1, -1, false, nullptr, true, std::move(new_reactions));
-  promise.set_value(Unit());
-}
-
-void MessagesManager::update_message_reactions(MessageFullId message_full_id,
-                                               unique_ptr<MessageReactions> &&reactions) {
-  update_message_interaction_info(message_full_id, -1, -1, false, nullptr, true, std::move(reactions));
-}
-
-void MessagesManager::on_get_message_reaction_list(
-    MessageFullId message_full_id, const ReactionType &reaction_type,
-    FlatHashMap<ReactionType, vector<DialogId>, ReactionTypeHash> reaction_types, int32 total_count) {
-  const Message *m = get_message_force(message_full_id, "on_get_message_reaction_list");
-  if (m == nullptr || m->reactions == nullptr) {
-    return;
-  }
-
-  // it's impossible to use received reactions to update message reactions, because there is no way to find,
-  // which reactions are chosen by the current user, so just reload message reactions for consistency
-  if (m->reactions->are_consistent_with_list(reaction_type, std::move(reaction_types), total_count)) {
-    return;
-  }
-
-  LOG(INFO) << "Need reload reactions in " << message_full_id << " for consistency";
-
-  auto it = pending_reactions_.find(message_full_id);
-  if (it != pending_reactions_.end()) {
-    it->second.was_updated = true;
-  } else {
-    td_->message_query_manager_->queue_message_reactions_reload(message_full_id);
-  }
-}
-
-void MessagesManager::on_update_message_interaction_info(MessageFullId message_full_id, int32 view_count,
-                                                         int32 forward_count, bool has_reply_info,
-                                                         tl_object_ptr<telegram_api::messageReplies> &&reply_info) {
-  if (view_count < 0 || forward_count < 0) {
-    LOG(ERROR) << "Receive " << view_count << "/" << forward_count << " interaction counters for " << message_full_id;
-    return;
-  }
-  update_message_interaction_info(message_full_id, view_count, forward_count, has_reply_info, std::move(reply_info),
-                                  false, nullptr);
-}
-
-void MessagesManager::on_pending_message_views_timeout(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto it = pending_message_views_.find(dialog_id);
-  if (it == pending_message_views_.end()) {
-    return;
-  }
-  vector<MessageId> message_ids;
-  for (auto message_id : it->second.message_ids_) {
-    message_ids.push_back(message_id);
-  }
-  td_->message_query_manager_->view_messages(dialog_id, message_ids, it->second.increment_view_counter_);
-  pending_message_views_.erase(it);
-}
-
-void MessagesManager::update_message_interaction_info(MessageFullId message_full_id, int32 view_count,
-                                                      int32 forward_count, bool has_reply_info,
-                                                      tl_object_ptr<telegram_api::messageReplies> &&reply_info,
-                                                      bool has_reactions, unique_ptr<MessageReactions> &&reactions) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog_force(dialog_id, "update_message_interaction_info");
-  if (d == nullptr) {
-    return;
-  }
-  auto message_id = message_full_id.get_message_id();
-  Message *m = get_message_force(d, message_id, "update_message_interaction_info");
-  if (m == nullptr) {
-    LOG(INFO) << "Ignore message interaction info about unknown " << message_full_id;
-    if (!message_id.is_scheduled() && d->last_new_message_id.is_valid() && message_id > d->last_new_message_id &&
-        dialog_id.get_type() == DialogType::Channel) {
-      get_channel_difference(dialog_id, d->pts, 0, message_id, true, "update_message_interaction_info");
-    }
-    return;
-  }
-
-  if (view_count < 0) {
-    view_count = m->view_count;
-  }
-  if (forward_count < 0) {
-    forward_count = m->forward_count;
-  }
-  bool is_empty_reply_info = reply_info == nullptr;
-  MessageReplyInfo new_reply_info(td_, std::move(reply_info), td_->auth_manager_->is_bot());
-  if (new_reply_info.is_empty() && !is_empty_reply_info) {
-    has_reply_info = false;
-  }
-
-  if (update_message_interaction_info(d, m, view_count, forward_count, has_reply_info, std::move(new_reply_info),
-                                      has_reactions, std::move(reactions), "update_message_interaction_info")) {
-    on_message_changed(d, m, true, "update_message_interaction_info");
-  }
-}
-
-bool MessagesManager::is_thread_message(DialogId dialog_id, const Message *m) const {
-  CHECK(m != nullptr);
-  return is_thread_message(dialog_id, m->message_id, m->reply_info, m->content->get_type());
-}
-
-bool MessagesManager::is_thread_message(DialogId dialog_id, MessageId message_id, const MessageReplyInfo &reply_info,
-                                        MessageContentType content_type) const {
-  if (dialog_id.get_type() != DialogType::Channel || td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return false;
-  }
-  if (!message_id.is_valid() || !message_id.is_server()) {
-    return false;
-  }
-  return !reply_info.is_empty() || reply_info.was_dropped() || content_type == MessageContentType::TopicCreate;
-}
-
-bool MessagesManager::is_active_message_reply_info(DialogId dialog_id, const MessageReplyInfo &reply_info) const {
-  if (reply_info.is_empty()) {
-    return false;
-  }
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return false;
-  }
-
-  if (!reply_info.is_comment_) {
-    return true;
-  }
-  if (!td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return true;
-  }
-
-  auto channel_id = dialog_id.get_channel_id();
-  if (!td_->chat_manager_->get_channel_has_linked_channel(channel_id)) {
-    return false;
-  }
-
-  auto linked_channel_id =
-      td_->chat_manager_->get_channel_linked_channel_id(channel_id, "is_active_message_reply_info");
-  if (!linked_channel_id.is_valid()) {
-    // keep the comment button while linked channel is unknown
-    send_closure_later(G()->chat_manager(), &ChatManager::load_channel_full, channel_id, false, Promise<Unit>(),
-                       "is_active_message_reply_info");
-    return true;
-  }
-
-  if (linked_channel_id != reply_info.channel_id_) {
-    return false;
-  }
-
-  return true;
-}
-
-bool MessagesManager::is_visible_message_reply_info(DialogId dialog_id, const Message *m) const {
-  CHECK(m != nullptr);
-  if (!m->message_id.is_valid()) {
-    return false;
-  }
-  bool is_broadcast = td_->dialog_manager_->is_broadcast_channel(dialog_id);
-  if (!m->message_id.is_server() && !(is_broadcast && m->message_id.is_yet_unsent())) {
-    return false;
-  }
-  if (is_broadcast && (m->had_reply_markup || m->reply_markup != nullptr)) {
-    return false;
-  }
-  if (!is_active_message_reply_info(dialog_id, m->reply_info)) {
-    return false;
-  }
-  if (m->reply_info.is_comment_ && is_broadcast &&
-      td_->chat_manager_->have_channel_force(m->reply_info.channel_id_, "is_visible_message_reply_info") &&
-      !td_->chat_manager_->have_input_peer_channel(m->reply_info.channel_id_, AccessRights::Read)) {
-    // keep the comment button while have no information about the linked channel
-    return false;
-  }
-  return true;
-}
-
-bool MessagesManager::is_visible_message_reactions(DialogId dialog_id, const Message *m) const {
-  if (m == nullptr) {
-    return false;
-  }
-
-  const Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (get_message_active_reactions(d, m).empty()) {
-    return false;
-  }
-  if (m->available_reactions_generation != d->available_reactions_generation) {
-    return false;
-  }
-  return true;
-}
-
-bool MessagesManager::has_unread_message_reactions(DialogId dialog_id, const Message *m) const {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-  CHECK(m != nullptr);
-  return m->reactions != nullptr && !m->reactions->unread_reactions_.empty() &&
-         is_visible_message_reactions(dialog_id, m);
-}
-
-void MessagesManager::on_message_reply_info_changed(DialogId dialog_id, const Message *m) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (is_visible_message_reply_info(dialog_id, m)) {
-    send_update_message_interaction_info(dialog_id, m);
-  }
-}
-
-td_api::object_ptr<td_api::messageInteractionInfo> MessagesManager::get_message_interaction_info_object(
-    DialogId dialog_id, const Message *m) const {
-  bool is_visible_reply_info = is_visible_message_reply_info(dialog_id, m);
-  bool has_reactions =
-      m->reactions != nullptr && !m->reactions->are_empty() && is_visible_message_reactions(dialog_id, m);
-  if (m->view_count == 0 && m->forward_count == 0 && !is_visible_reply_info && !has_reactions) {
-    return nullptr;
-  }
-  if (m->message_id.is_scheduled() &&
-      (m->forward_info == nullptr || td_->dialog_manager_->is_broadcast_channel(dialog_id))) {
-    return nullptr;
-  }
-  if (m->message_id.is_local() && m->forward_info == nullptr) {
-    return nullptr;
-  }
-
-  td_api::object_ptr<td_api::messageReplyInfo> reply_info;
-  if (is_visible_reply_info) {
-    auto expected_dialog_id = m->reply_info.is_comment_ ? DialogId(m->reply_info.channel_id_) : dialog_id;
-    const Dialog *d = get_dialog(expected_dialog_id);
-    reply_info =
-        m->reply_info.get_message_reply_info_object(td_, d != nullptr ? d->last_read_inbox_message_id : MessageId());
-    CHECK(reply_info != nullptr);
-  }
-
-  td_api::object_ptr<td_api::messageReactions> reactions;
-  if (has_reactions) {
-    UserId my_user_id;
-    UserId peer_user_id;
-    if (dialog_id.get_type() == DialogType::User) {
-      my_user_id = td_->user_manager_->get_my_id();
-      peer_user_id = dialog_id.get_user_id();
-    }
-    reactions = m->reactions->get_message_reactions_object(td_, my_user_id, peer_user_id);
-  }
-
-  return td_api::make_object<td_api::messageInteractionInfo>(m->view_count, m->forward_count, std::move(reply_info),
-                                                             std::move(reactions));
-}
-
-td_api::object_ptr<td_api::factCheck> MessagesManager::get_message_fact_check_object(const Message *m) const {
-  if (m->fact_check == nullptr) {
-    return nullptr;
-  }
-  return m->fact_check->get_fact_check_object(td_->user_manager_.get());
-}
-
-vector<td_api::object_ptr<td_api::unreadReaction>> MessagesManager::get_unread_reactions_object(
-    DialogId dialog_id, const Message *m) const {
-  if (!has_unread_message_reactions(dialog_id, m)) {
-    return {};
-  }
-
-  vector<td_api::object_ptr<td_api::unreadReaction>> unread_reactions;
-  for (const auto &unread_reaction : m->reactions->unread_reactions_) {
-    auto unread_reaction_object = unread_reaction.get_unread_reaction_object(td_);
-    if (unread_reaction_object != nullptr) {
-      unread_reactions.push_back(std::move(unread_reaction_object));
-    }
-  }
-  return unread_reactions;
-}
-
-void MessagesManager::on_update_message_fact_check(MessageFullId message_full_id, unique_ptr<FactCheck> &&fact_check) {
-  auto *d = get_dialog_force(message_full_id.get_dialog_id(), "on_update_message_fact_check");
-  if (d == nullptr) {
-    return;
-  }
-  auto *m = get_message_force(d, message_full_id.get_message_id(), "on_update_message_fact_check");
-  if (m == nullptr) {
-    return;
-  }
-  update_message_fact_check(d, m, std::move(fact_check), true);
-}
-
-bool MessagesManager::update_message_fact_check(const Dialog *d, Message *m, unique_ptr<FactCheck> &&fact_check,
-                                                bool need_save) {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || !m->message_id.is_valid() || !m->message_id.is_server()) {
-    return false;
-  }
-  if (fact_check != nullptr && m->fact_check != nullptr) {
-    fact_check->update_from(*m->fact_check);
-  }
-  bool need_update = false;
-  if (fact_check != m->fact_check) {
-    if ((fact_check != nullptr && !fact_check->need_check()) ||
-        (m->fact_check != nullptr && !m->fact_check->need_check())) {
-      need_update = true;
-    }
-    m->fact_check = std::move(fact_check);
-    if (need_save) {
-      on_message_changed(d, m, false, "update_message_fact_check");
-    }
-  }
-  if (need_update) {
-    send_update_message_fact_check(d->dialog_id, m);
-  }
-  return need_update;
-}
-
-bool MessagesManager::update_message_interaction_info(Dialog *d, Message *m, int32 view_count, int32 forward_count,
-                                                      bool has_reply_info, MessageReplyInfo &&reply_info,
-                                                      bool has_reactions, unique_ptr<MessageReactions> &&reactions,
-                                                      const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  auto dialog_id = d->dialog_id;
-  m->interaction_info_update_date = G()->unix_time();  // doesn't force message saving
-  if (m->message_id.is_valid_scheduled()) {
-    has_reply_info = false;
-    has_reactions = false;
-  }
-  bool need_update_reply_info = has_reply_info && m->reply_info.need_update_to(reply_info);
-  if (has_reply_info && m->reply_info.channel_id_ == reply_info.channel_id_) {
-    if (need_update_reply_info) {
-      reply_info.update_max_message_ids(m->reply_info);
-    } else {
-      if (m->reply_info.update_max_message_ids(reply_info) && view_count <= m->view_count &&
-          forward_count <= m->forward_count) {
-        on_message_reply_info_changed(dialog_id, m);
-        on_message_changed(d, m, true, "update_message_interaction_info");
-      }
-    }
-  }
-  MessageFullId message_full_id{dialog_id, m->message_id};
-  if (has_reactions) {
-    auto it = pending_reactions_.find(message_full_id);
-    if (it != pending_reactions_.end()) {
-      LOG(INFO) << "Ignore reactions for " << message_full_id << ", because they are being changed";
-      has_reactions = false;
-      it->second.was_updated = true;
-    }
-    if (has_reactions && td_->message_query_manager_->has_message_pending_read_reactions(message_full_id)) {
-      LOG(INFO) << "Ignore reactions for " << message_full_id << ", because they are being read";
-      has_reactions = false;
-    }
-  }
-  if (has_reactions && reactions != nullptr) {
-    if (m->reactions != nullptr) {
-      reactions->update_from(*m->reactions, td_->dialog_manager_->get_my_dialog_id());
-    }
-    reactions->sort_reactions(active_reaction_pos_);
-    reactions->fix_chosen_reaction();
-    reactions->fix_my_recent_chooser_dialog_id(td_->dialog_manager_->get_my_dialog_id());
-  }
-  bool need_update_reactions =
-      has_reactions && MessageReactions::need_update_message_reactions(m->reactions.get(), reactions.get());
-  bool need_update_unread_reactions =
-      has_reactions && MessageReactions::need_update_unread_reactions(m->reactions.get(), reactions.get());
-  bool need_update_chosen_reaction_order = has_reactions && reactions != nullptr && m->reactions != nullptr &&
-                                           m->reactions->chosen_reaction_order_ != reactions->chosen_reaction_order_;
-  if (view_count > m->view_count || forward_count > m->forward_count || need_update_reply_info ||
-      need_update_reactions || need_update_unread_reactions || need_update_chosen_reaction_order) {
-    LOG(DEBUG) << "Update interaction info of " << message_full_id << " from " << m->view_count << '/'
-               << m->forward_count << '/' << m->reply_info << '/' << m->reactions << " to " << view_count << '/'
-               << forward_count << '/' << reply_info << '/' << reactions
-               << ", need_update_reply_info = " << need_update_reply_info
-               << ", need_update_reactions = " << need_update_reactions
-               << ", need_update_unread_reactions = " << need_update_unread_reactions
-               << ", need_update_chosen_reaction_order = " << need_update_chosen_reaction_order;
-    bool need_update = false;
-    if (view_count > m->view_count) {
-      m->view_count = view_count;
-      need_update = true;
-    }
-    if (forward_count > m->forward_count) {
-      m->forward_count = forward_count;
-      need_update = true;
-    }
-    if (need_update_reply_info) {
-      if (m->reply_info.channel_id_ != reply_info.channel_id_) {
-        if (m->reply_info.channel_id_.is_valid() && reply_info.channel_id_.is_valid() && m->message_id.is_server()) {
-          LOG(ERROR) << "Reply info of " << message_full_id << " changed from " << m->reply_info << " to " << reply_info
-                     << " from " << source;
-        }
-      }
-      m->reply_info = std::move(reply_info);
-      if (!m->top_thread_message_id.is_valid() && is_thread_message(dialog_id, m)) {
-        m->top_thread_message_id = m->message_id;
-      }
-      need_update |= is_visible_message_reply_info(dialog_id, m);
-    }
-    int32 new_dialog_unread_reaction_count = -1;
-    if (need_update_reactions || need_update_unread_reactions) {
-      CHECK(m->message_id.is_valid());
-
-      auto old_chosen_tags = get_chosen_tags(m->reactions);
-      int32 unread_reaction_diff = 0;
-      unread_reaction_diff -= (has_unread_message_reactions(dialog_id, m) ? 1 : 0);
-      m->reactions = std::move(reactions);
-      m->available_reactions_generation = d->available_reactions_generation;
-      unread_reaction_diff += (has_unread_message_reactions(dialog_id, m) ? 1 : 0);
-      auto new_chosen_tags = get_chosen_tags(m->reactions);
-
-      td_->reaction_manager_->update_saved_messages_tags(m->saved_messages_topic_id, old_chosen_tags, new_chosen_tags);
-
-      if (is_visible_message_reactions(dialog_id, m)) {
-        need_update |= need_update_reactions;
-        if (need_update_unread_reactions) {
-          if (unread_reaction_diff != 0) {
-            // remove_message_notification_id(d, m, true, true);
-
-            if (d->unread_reaction_count + unread_reaction_diff < 0) {
-              if (is_dialog_inited(d)) {
-                LOG(ERROR) << "Unread reaction count of " << dialog_id << " became negative from " << source;
-              }
-            } else {
-              set_dialog_unread_reaction_count(d, d->unread_reaction_count + unread_reaction_diff);
-              on_dialog_updated(dialog_id, "update_message_interaction_info");
-            }
-          }
-
-          if (unread_reaction_diff < 0) {
-            send_update_message_unread_reactions(dialog_id, m, d->unread_reaction_count);
-          } else {
-            new_dialog_unread_reaction_count = d->unread_reaction_count;
-          }
-        }
-      }
-    } else if (has_reactions) {
-      bool is_changed = false;
-      if (m->available_reactions_generation != d->available_reactions_generation) {
-        m->available_reactions_generation = d->available_reactions_generation;
-        is_changed = true;
-      }
-      if (need_update_chosen_reaction_order) {
-        m->reactions->chosen_reaction_order_ = std::move(reactions->chosen_reaction_order_);
-        is_changed = true;
-      }
-      if (is_changed) {
-        on_message_changed(d, m, false, "update_message_interaction_info");
-      }
-    }
-    if (need_update) {
-      send_update_message_interaction_info(dialog_id, m);
-    }
-    if (new_dialog_unread_reaction_count >= 0) {
-      send_update_message_unread_reactions(dialog_id, m, new_dialog_unread_reaction_count);
-    }
-    return true;
-  } else if (has_reactions && m->available_reactions_generation != d->available_reactions_generation) {
-    m->available_reactions_generation = d->available_reactions_generation;
-    on_message_changed(d, m, false, "update_message_interaction_info");
-  }
-  return false;
-}
-
-void MessagesManager::on_update_live_location_viewed(MessageFullId message_full_id) {
-  LOG(DEBUG) << "Live location was viewed in " << message_full_id;
-  if (!are_active_live_location_messages_loaded_) {
-    load_active_live_location_messages(
-        PromiseCreator::lambda([actor_id = actor_id(this), message_full_id](Unit result) {
-          send_closure(actor_id, &MessagesManager::on_update_live_location_viewed, message_full_id);
-        }));
-    return;
-  }
-
-  if (!td::contains(active_live_location_message_full_ids_, message_full_id)) {
-    LOG(DEBUG) << "Can't find " << message_full_id;
-    return;
-  }
-
-  send_update_message_live_location_viewed(message_full_id);
-}
-
-void MessagesManager::on_update_some_live_location_viewed(Promise<Unit> &&promise) {
-  LOG(DEBUG) << "Some live location was viewed";
-  if (!are_active_live_location_messages_loaded_) {
-    load_active_live_location_messages(
-        PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](Unit result) mutable {
-          send_closure(actor_id, &MessagesManager::on_update_some_live_location_viewed, std::move(promise));
-        }));
-    return;
-  }
-
-  // update all live locations, because it is unknown, which exactly was viewed
-  for (const auto &message_full_id : active_live_location_message_full_ids_) {
-    send_update_message_live_location_viewed(message_full_id);
-  }
-
-  promise.set_value(Unit());
-}
-
-void MessagesManager::on_update_message_extended_media(
-    MessageFullId message_full_id,
-    vector<telegram_api::object_ptr<telegram_api::MessageExtendedMedia>> extended_media) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog_force(dialog_id, "on_update_message_extended_media 1");
-  if (d == nullptr) {
-    LOG(INFO) << "Ignore update of message extended media in unknown " << dialog_id;
-    return;
-  }
-
-  auto m = get_message_force(d, message_full_id.get_message_id(), "on_update_message_extended_media 2");
-  if (m == nullptr) {
-    LOG(INFO) << "Ignore update of message extended media in unknown " << message_full_id;
-    return;
-  }
-
-  if (update_message_content_extended_media(m->content.get(), std::move(extended_media), dialog_id, td_)) {
-    send_update_message_content(d, m, true, "on_update_message_extended_media 3");
-    on_message_changed(d, m, true, "on_update_message_extended_media 4");
-    on_message_notification_changed(d, m, "on_update_message_extended_media 5");  // usually a no-op
-  }
-}
-
-bool MessagesManager::need_skip_bot_commands(DialogId dialog_id, const Message *m) const {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  if (m != nullptr && m->message_id.is_scheduled()) {
-    return true;
-  }
-
-  auto d = get_dialog(dialog_id);
-  return (d != nullptr && d->is_has_bots_inited && !d->has_bots) ||
-         td_->dialog_manager_->is_broadcast_channel(dialog_id);
-}
-
-void MessagesManager::on_external_update_message_content(MessageFullId message_full_id, const char *source,
-                                                         bool expect_no_message) {
-  Dialog *d = get_dialog(message_full_id.get_dialog_id());
-  CHECK(d != nullptr);
-  Message *m = get_message(d, message_full_id.get_message_id());
-  if (expect_no_message && m == nullptr) {
-    return;
-  }
-  CHECK(m != nullptr);
-  send_update_message_content(d, m, true, source);
-  // must not call on_message_changed, because the message itself wasn't changed
-  send_update_last_message_if_needed(d, m, source);
-  on_message_notification_changed(d, m, source);
-}
-
-void MessagesManager::on_update_message_content(MessageFullId message_full_id) {
-  Dialog *d = get_dialog(message_full_id.get_dialog_id());
-  CHECK(d != nullptr);
-  Message *m = get_message(d, message_full_id.get_message_id());
-  CHECK(m != nullptr);
-  send_update_message_content(d, m, true, "on_update_message_content 1");
-  on_message_changed(d, m, true, "on_update_message_content 2");
-  on_message_notification_changed(d, m, "on_update_message_content 3");
-}
-
-bool MessagesManager::update_message_contains_unread_mention(Dialog *d, Message *m, bool contains_unread_mention,
-                                                             const char *source) {
-  LOG_CHECK(m != nullptr) << source;
-  CHECK(!m->message_id.is_scheduled());
-  if (!contains_unread_mention && m->contains_unread_mention) {
-    remove_message_notification_id(d, m, true, true);  // must be called before contains_unread_mention is updated
-
-    m->contains_unread_mention = false;
-    if (d->unread_mention_count == 0) {
-      if (is_dialog_inited(d)) {
-        LOG(ERROR) << "Unread mention count of " << d->dialog_id << " became negative from " << source;
-      }
-    } else {
-      set_dialog_unread_mention_count(d, d->unread_mention_count - 1);
-      on_dialog_updated(d->dialog_id, "update_message_contains_unread_mention");
-    }
-    LOG(INFO) << "Update unread mention message count in " << d->dialog_id << " to " << d->unread_mention_count
-              << " by reading " << m->message_id << " from " << source;
-
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateMessageMentionRead>(
-                     get_chat_id_object(d->dialog_id, "updateMessageMentionRead"), m->message_id.get(),
-                     d->unread_mention_count));
-    return true;
-  }
-  return false;
-}
-
-bool MessagesManager::remove_message_unread_reactions(Dialog *d, Message *m, const char *source) {
-  CHECK(m != nullptr);
-  CHECK(!m->message_id.is_scheduled());
-  if (!has_unread_message_reactions(d->dialog_id, m)) {
-    return false;
-  }
-  // remove_message_notification_id(d, m, true, true);
-
-  m->reactions->unread_reactions_.clear();
-  if (d->unread_reaction_count == 0) {
-    if (is_dialog_inited(d)) {
-      LOG(ERROR) << "Unread reaction count of " << d->dialog_id << " became negative from " << source;
-    }
-  } else {
-    set_dialog_unread_reaction_count(d, d->unread_reaction_count - 1);
-    on_dialog_updated(d->dialog_id, "remove_message_unread_reactions");
-  }
-  LOG(INFO) << "Update unread reaction count in " << d->dialog_id << " to " << d->unread_reaction_count
-            << " by reading " << m->message_id << " from " << source;
-
-  send_update_message_unread_reactions(d->dialog_id, m, d->unread_reaction_count);
-
-  return true;
-}
-
-void MessagesManager::on_read_channel_inbox(ChannelId channel_id, MessageId max_message_id, int32 server_unread_count,
-                                            int32 pts, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(!max_message_id.is_scheduled());
-  if (!max_message_id.is_valid() && server_unread_count <= 0) {
-    return;
-  }
-
-  DialogId dialog_id(channel_id);
-  Dialog *d = get_dialog_force(dialog_id, source);
-  if (d == nullptr) {
-    LOG(INFO) << "Receive read inbox in unknown " << dialog_id << " from " << source;
-    return;
-  }
-
-  /*
-  // dropping unread count can make things worse, so don't drop it
-  if (server_unread_count > 0 && G()->use_message_database() && d->is_last_read_inbox_message_id_inited) {
-    server_unread_count = -1;
-  }
-  */
-
-  if (d->pts == pts) {
-    read_history_inbox(d, max_message_id, server_unread_count, source);
-  } else if (d->pts > pts) {
-    // outdated update, need to repair server_unread_count from the server
-    repair_channel_server_unread_count(d);
-  } else {
-    // update from the future, keep it until it can be applied
-    if (pts >= d->pending_read_channel_inbox_pts) {
-      if (d->pending_read_channel_inbox_pts == 0) {
-        schedule_get_channel_difference(dialog_id, pts, MessageId(), 0.001, "on_read_channel_inbox");
-      }
-      d->pending_read_channel_inbox_pts = pts;
-      d->pending_read_channel_inbox_max_message_id = max_message_id;
-      d->pending_read_channel_inbox_server_unread_count = server_unread_count;
-      on_dialog_updated(dialog_id, "on_read_channel_inbox");
-    }
-  }
-}
-
-void MessagesManager::on_update_channel_max_unavailable_message_id(ChannelId channel_id,
-                                                                   MessageId max_unavailable_message_id,
-                                                                   const char *source) {
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive max_unavailable_message_id in invalid " << channel_id << " from " << source;
-    return;
-  }
-
-  DialogId dialog_id(channel_id);
-  CHECK(!max_unavailable_message_id.is_scheduled());
-  if (!max_unavailable_message_id.is_valid() && max_unavailable_message_id != MessageId()) {
-    LOG(ERROR) << "Receive wrong max_unavailable_message_id: " << max_unavailable_message_id << " from " << source;
-    max_unavailable_message_id = MessageId();
-  }
-  set_dialog_max_unavailable_message_id(dialog_id, max_unavailable_message_id, true, source);
-}
-
-void MessagesManager::on_update_delete_scheduled_messages(DialogId dialog_id,
-                                                          vector<ScheduledServerMessageId> &&server_message_ids) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive deleted scheduled messages in invalid " << dialog_id;
-    return;
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "on_update_delete_scheduled_messages");
-  if (d == nullptr) {
-    LOG(INFO) << "Skip updateDeleteScheduledMessages in unknown " << dialog_id;
-    return;
-  }
-
-  vector<int64> deleted_message_ids;
-  for (auto server_message_id : server_message_ids) {
-    if (!server_message_id.is_valid()) {
-      LOG(ERROR) << "Incoming update tries to delete scheduled message " << server_message_id.get();
-      continue;
-    }
-
-    auto message = do_delete_scheduled_message(d, MessageId(server_message_id, std::numeric_limits<int32>::max()), true,
-                                               "on_update_delete_scheduled_messages");
-    if (message != nullptr) {
-      deleted_message_ids.push_back(message->message_id.get());
-    }
-  }
-
-  send_update_delete_messages(dialog_id, std::move(deleted_message_ids), true);
-
-  send_update_chat_has_scheduled_messages(d, true);
-}
-
-void MessagesManager::on_dialog_speaking_action(DialogId dialog_id, DialogId speaking_dialog_id, int32 date) {
-  const Dialog *d = get_dialog_force(dialog_id, "on_dialog_speaking_action");
-  if (d != nullptr && d->active_group_call_id.is_valid()) {
-    auto group_call_id = td_->group_call_manager_->get_group_call_id(d->active_group_call_id, dialog_id);
-    td_->group_call_manager_->on_user_speaking_in_group_call(group_call_id, speaking_dialog_id, false, date);
-  }
-}
-
-void MessagesManager::on_message_animated_emoji_clicked(MessageFullId message_full_id, string &&emoji, string &&data) {
-  const auto *m = get_message_force(message_full_id, "on_message_animated_emoji_clicked");
-  if (m != nullptr) {
-    on_message_content_animated_emoji_clicked(m->content.get(), message_full_id, td_, std::move(emoji),
-                                              std::move(data));
-  }
-}
-
-void MessagesManager::cancel_dialog_action(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || m->forward_info != nullptr || m->had_forward_info ||
-      m->via_bot_user_id.is_valid() || m->hide_via_bot || m->is_channel_post || m->message_id.is_scheduled()) {
-    return;
-  }
-
-  td_->dialog_action_manager_->on_dialog_action(dialog_id, MessageId() /*ignored*/, get_message_sender(m),
-                                                DialogAction(), m->date, m->content->get_type());
-}
-
-void MessagesManager::add_postponed_channel_update(DialogId dialog_id, tl_object_ptr<telegram_api::Update> &&update,
-                                                   int32 new_pts, int32 pts_count, Promise<Unit> &&promise) {
-  postponed_channel_updates_[dialog_id].emplace(
-      new_pts, PendingPtsUpdate(std::move(update), new_pts, pts_count, std::move(promise)));
-}
-
-void MessagesManager::add_pending_channel_update(DialogId dialog_id, tl_object_ptr<telegram_api::Update> &&update,
-                                                 int32 new_pts, int32 pts_count, Promise<Unit> &&promise,
-                                                 const char *source, bool is_postponed_update) {
-  CHECK(update != nullptr);
-  if (dialog_id.get_type() != DialogType::Channel) {
-    LOG(ERROR) << "Receive channel update in invalid " << dialog_id << " from " << source << ": "
-               << oneline(to_string(update));
-    promise.set_value(Unit());
-    return;
-  }
-  if (pts_count < 0 || new_pts <= pts_count) {
-    LOG(ERROR) << "Receive channel update from " << source << " with wrong PTS = " << new_pts
-               << " or pts_count = " << pts_count << ": " << oneline(to_string(update));
-    promise.set_value(Unit());
-    return;
-  }
-
-  auto channel_id = dialog_id.get_channel_id();
-  if (!td_->chat_manager_->have_channel(channel_id) && td_->chat_manager_->have_min_channel(channel_id)) {
-    td_->updates_manager_->schedule_get_difference("add_pending_channel_update 1");
-    promise.set_value(Unit());
-    return;
-  }
-
-  // TODO need to save all updates that can change result of running queries not associated with PTS (for example
-  // getHistory) and apply them to result of these queries
-
-  Dialog *d = get_dialog_force(dialog_id, "add_pending_channel_update 2");
-  if (d == nullptr) {
-    auto pts = load_channel_pts(dialog_id);
-    if (pts > 0) {
-      if (!td_->chat_manager_->have_channel(channel_id)) {
-        // do not create dialog if there is no info about the channel
-        LOG(INFO) << "There is no info about " << channel_id << ", so ignore " << oneline(to_string(update));
-        promise.set_value(Unit());
-        return;
-      }
-
-      d = add_dialog(dialog_id, "add_pending_channel_update 4");
-      CHECK(d != nullptr);
-      CHECK(d->pts == pts);
-      update_dialog_pos(d, "add_pending_channel_update 5");
-    }
-  }
-  if (d == nullptr) {
-    // if there is no dialog, it can be created by the update
-    LOG(INFO) << "Receive from " << source << " pending update about unknown " << dialog_id << ": "
-              << to_string(update);
-    if (running_get_channel_difference(dialog_id)) {
-      add_postponed_channel_update(dialog_id, std::move(update), new_pts, pts_count, std::move(promise));
-      return;
-    }
-  } else {
-    int32 old_pts = d->pts;
-    if (new_pts <= old_pts) {  // very old or useless update
-      if (update->get_id() == telegram_api::updateNewChannelMessage::ID) {
-        auto update_new_channel_message = static_cast<telegram_api::updateNewChannelMessage *>(update.get());
-        auto message_id = MessageId::get_message_id(update_new_channel_message->message_, false);
-        MessageFullId message_full_id(dialog_id, message_id);
-        if (update_message_ids_.count(message_full_id) > 0) {
-          // apply sent channel message
-          auto added_message_full_id = on_get_message(std::move(update_new_channel_message->message_), true, true,
-                                                      false, "updateNewChannelMessage with an awaited message");
-          if (added_message_full_id != message_full_id) {
-            LOG(ERROR) << "Failed to add an awaited " << message_full_id << " from " << source;
-          }
-          promise.set_value(Unit());
-          return;
-        }
-      }
-      if (update->get_id() == updateSentMessage::ID) {
-        auto update_sent_message = static_cast<updateSentMessage *>(update.get());
-        if (being_sent_messages_.count(update_sent_message->random_id_) > 0) {
-          // apply sent channel message
-          on_send_message_success(update_sent_message->random_id_, update_sent_message->message_id_,
-                                  update_sent_message->date_, update_sent_message->ttl_period_, FileId(),
-                                  "process old updateSentChannelMessage");
-          promise.set_value(Unit());
-          return;
-        }
-      }
-
-      LOG_IF(WARNING, new_pts == old_pts && pts_count == 0 && !is_allowed_useless_update(update))
-          << "Receive from " << source << " useless channel update " << oneline(to_string(update));
-      LOG(INFO) << "Skip already applied channel update with PTS " << new_pts << " from " << source;
-      Scheduler::instance()->destroy_on_scheduler_unique_ptr(G()->get_gc_scheduler_id(), update);
-      promise.set_value(Unit());
-      return;
-    }
-
-    LOG(INFO) << "Receive from " << source << " pending " << to_string(update);
-    if (running_get_channel_difference(dialog_id)) {
-      LOG(INFO) << "Postpone channel update, because getChannelDifference is run";
-      add_postponed_channel_update(dialog_id, std::move(update), new_pts, pts_count, std::move(promise));
-      return;
-    }
-
-    if (old_pts == 0) {
-      old_pts = new_pts - pts_count;
-      LOG(INFO) << "Receive first update in " << dialog_id << " with PTS = " << new_pts << " from " << source;
-    } else if (old_pts != new_pts - pts_count) {
-      LOG(INFO) << "Found a gap in the " << dialog_id << " with PTS = " << old_pts << ". new_pts = " << new_pts
-                << ", pts_count = " << pts_count << " in update from " << source;
-      if (d->was_opened || td_->chat_manager_->get_channel_status(channel_id).is_member() || is_dialog_sponsored(d)) {
-        add_postponed_channel_update(dialog_id, std::move(update), new_pts, pts_count, std::move(promise));
-        get_channel_difference(dialog_id, old_pts, new_pts, MessageId(), true,
-                               "add_pending_channel_update PTS mismatch");
-      } else {
-        promise.set_value(Unit());
-      }
-      return;
-    }
-    CHECK(old_pts + pts_count == new_pts);  // the update can be applied
-  }
-
-  if (d == nullptr || pts_count > 0) {
-    if (!process_channel_update(std::move(update)) &&
-        channel_get_difference_retry_timeout_.has_timeout(dialog_id.get())) {
-      promise.set_value(Unit());
-      return;
-    }
-    LOG_CHECK(!running_get_channel_difference(dialog_id)) << '"' << active_get_channel_differences_[dialog_id] << '"';
-  } else {
-    LOG_IF(INFO, update->get_id() != dummyUpdate::ID)
-        << "Skip useless channel update from " << source << ": " << to_string(update);
-  }
-
-  if (d == nullptr) {
-    d = get_dialog(dialog_id);
-    if (d == nullptr) {
-      LOG(INFO) << "Update didn't created " << dialog_id;
-      promise.set_value(Unit());
-      return;
-    }
-  }
-
-  CHECK(new_pts > d->pts);
-  set_channel_pts(d, new_pts, source);
-  promise.set_value(Unit());
-}
-
-bool MessagesManager::is_old_channel_update(DialogId dialog_id, int32 new_pts) {
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-
-  const Dialog *d = get_dialog_force(dialog_id, "is_old_channel_update");
-  return new_pts <= (d == nullptr ? load_channel_pts(dialog_id) : d->pts);
-}
-
-void MessagesManager::process_pts_update(tl_object_ptr<telegram_api::Update> &&update_ptr) {
-  switch (update_ptr->get_id()) {
-    case dummyUpdate::ID:
-      LOG(INFO) << "Process dummyUpdate";
-      break;
-    case telegram_api::updateNewMessage::ID: {
-      auto update = move_tl_object_as<telegram_api::updateNewMessage>(update_ptr);
-      LOG(INFO) << "Process updateNewMessage";
-      on_get_message(std::move(update->message_), true, false, false, "updateNewMessage");
-      break;
-    }
-    case updateSentMessage::ID: {
-      auto update = move_tl_object_as<updateSentMessage>(update_ptr);
-      LOG(INFO) << "Process updateSentMessage " << update->random_id_;
-      on_send_message_success(update->random_id_, update->message_id_, update->date_, update->ttl_period_, FileId(),
-                              "process updateSentMessage");
-      break;
-    }
-    case telegram_api::updateReadMessagesContents::ID: {
-      auto update = move_tl_object_as<telegram_api::updateReadMessagesContents>(update_ptr);
-      LOG(INFO) << "Process updateReadMessageContents";
-      for (auto &message_id : update->messages_) {
-        read_message_content_from_updates(MessageId(ServerMessageId(message_id)), update->date_);
-      }
-      break;
-    }
-    case telegram_api::updateEditMessage::ID: {
-      auto update = move_tl_object_as<telegram_api::updateEditMessage>(update_ptr);
-      LOG(INFO) << "Process updateEditMessage";
-      bool had_message =
-          have_message_force(MessageFullId::get_message_full_id(update->message_, false), "updateEditMessage");
-      auto message_full_id = on_get_message(std::move(update->message_), false, false, false, "updateEditMessage");
-      on_message_edited(message_full_id, update->pts_, had_message);
-      break;
-    }
-    case telegram_api::updateDeleteMessages::ID: {
-      auto update = move_tl_object_as<telegram_api::updateDeleteMessages>(update_ptr);
-      LOG(INFO) << "Process updateDeleteMessages";
-      vector<MessageId> message_ids;
-      for (auto message : update->messages_) {
-        message_ids.push_back(MessageId(ServerMessageId(message)));
-      }
-      delete_messages_from_updates(message_ids, true);
-      break;
-    }
-    case telegram_api::updateReadHistoryInbox::ID: {
-      auto update = move_tl_object_as<telegram_api::updateReadHistoryInbox>(update_ptr);
-      LOG(INFO) << "Process updateReadHistoryInbox";
-      DialogId dialog_id(update->peer_);
-      on_update_dialog_folder_id(dialog_id, FolderId(update->folder_id_));
-      read_history_inbox(dialog_id, MessageId(ServerMessageId(update->max_id_)), -1 /*update->still_unread_count*/,
-                         "updateReadHistoryInbox");
-      break;
-    }
-    case telegram_api::updateReadHistoryOutbox::ID: {
-      auto update = move_tl_object_as<telegram_api::updateReadHistoryOutbox>(update_ptr);
-      LOG(INFO) << "Process updateReadHistoryOutbox";
-      read_history_outbox(DialogId(update->peer_), MessageId(ServerMessageId(update->max_id_)));
-      break;
-    }
-    case telegram_api::updatePinnedMessages::ID: {
-      auto update = move_tl_object_as<telegram_api::updatePinnedMessages>(update_ptr);
-      LOG(INFO) << "Process updatePinnedMessages";
-      vector<MessageId> message_ids;
-      for (auto message : update->messages_) {
-        message_ids.push_back(MessageId(ServerMessageId(message)));
-      }
-      update_dialog_pinned_messages_from_updates(DialogId(update->peer_), message_ids, update->pinned_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  update_ptr = nullptr;
-  CHECK(!td_->updates_manager_->running_get_difference());
-}
-
-bool MessagesManager::process_channel_update(tl_object_ptr<telegram_api::Update> &&update_ptr) {
-  switch (update_ptr->get_id()) {
-    case dummyUpdate::ID:
-      LOG(INFO) << "Process dummyUpdate";
-      break;
-    case updateSentMessage::ID: {
-      auto update = move_tl_object_as<updateSentMessage>(update_ptr);
-      LOG(INFO) << "Process updateSentMessage " << update->random_id_;
-      on_send_message_success(update->random_id_, update->message_id_, update->date_, update->ttl_period_, FileId(),
-                              "process updateSentChannelMessage");
-      break;
-    }
-    case telegram_api::updateNewChannelMessage::ID: {
-      auto update = move_tl_object_as<telegram_api::updateNewChannelMessage>(update_ptr);
-      LOG(INFO) << "Process updateNewChannelMessage";
-      on_get_message(std::move(update->message_), true, true, false, "updateNewChannelMessage");
-      break;
-    }
-    case telegram_api::updateDeleteChannelMessages::ID: {
-      auto update = move_tl_object_as<telegram_api::updateDeleteChannelMessages>(update_ptr);
-      LOG(INFO) << "Process updateDeleteChannelMessages";
-      ChannelId channel_id(update->channel_id_);
-      if (!channel_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << channel_id;
-        break;
-      }
-
-      vector<MessageId> message_ids;
-      for (auto &message : update->messages_) {
-        auto message_id = MessageId(ServerMessageId(message));
-        if (message_id.is_valid()) {
-          message_ids.push_back(message_id);
-        } else {
-          LOG(ERROR) << "Receive updateDeleteChannelMessages with message " << message << " in " << channel_id;
-        }
-      }
-
-      delete_dialog_messages(DialogId(channel_id), message_ids, true, "updateDeleteChannelMessages");
-      break;
-    }
-    case telegram_api::updateEditChannelMessage::ID: {
-      auto update = move_tl_object_as<telegram_api::updateEditChannelMessage>(update_ptr);
-      LOG(INFO) << "Process updateEditChannelMessage";
-      bool had_message =
-          have_message_force(MessageFullId::get_message_full_id(update->message_, false), "updateEditChannelMessage");
-      auto message_full_id =
-          on_get_message(std::move(update->message_), false, true, false, "updateEditChannelMessage");
-      if (message_full_id == MessageFullId()) {
-        return false;
-      }
-      on_message_edited(message_full_id, update->pts_, had_message);
-      break;
-    }
-    case telegram_api::updatePinnedChannelMessages::ID: {
-      auto update = move_tl_object_as<telegram_api::updatePinnedChannelMessages>(update_ptr);
-      LOG(INFO) << "Process updatePinnedChannelMessages";
-      ChannelId channel_id(update->channel_id_);
-      if (!channel_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << channel_id;
-        break;
-      }
-
-      vector<MessageId> message_ids;
-      for (auto &message : update->messages_) {
-        message_ids.push_back(MessageId(ServerMessageId(message)));
-      }
-
-      update_dialog_pinned_messages_from_updates(DialogId(channel_id), message_ids, update->pinned_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return true;
-}
-
-void MessagesManager::on_message_edited(MessageFullId message_full_id, int32 pts, bool had_message) {
-  if (message_full_id == MessageFullId()) {
-    return;
-  }
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog(dialog_id);
-  Message *m = get_message(d, message_full_id.get_message_id());
-  CHECK(m != nullptr);
-  m->last_edit_pts = pts;
-  d->last_edited_message_id = m->message_id;
-  if (td_->auth_manager_->is_bot()) {
-    send_update_message_edited(dialog_id, m);
-  }
-  update_used_hashtags(dialog_id, m);
-
-  if (!had_message &&
-      ((m->reactions != nullptr && !m->reactions->unread_reactions_.empty()) || d->unread_reaction_count > 0)) {
-    // if new message with unread reactions was added or the chat has unread reactions,
-    // then number of unread reactions could have been changed, so reload the number of unread reactions
-    repair_dialog_unread_reaction_count(d, Promise<Unit>(), "on_message_edited");
-  }
-}
-
-bool MessagesManager::update_dialog_notification_settings(DialogId dialog_id,
-                                                          DialogNotificationSettings *current_settings,
-                                                          DialogNotificationSettings &&new_settings) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return false;
-  }
-
-  auto need_update = need_update_dialog_notification_settings(current_settings, new_settings);
-  if (need_update.are_changed) {
-    Dialog *d = get_dialog(dialog_id);
-    LOG_CHECK(d != nullptr) << "Wrong " << dialog_id << " in update_dialog_notification_settings";
-    bool was_dialog_mentions_disabled = is_dialog_mention_notifications_disabled(d);
-
-    VLOG(notifications) << "Update notification settings in " << dialog_id << " from " << *current_settings << " to "
-                        << new_settings;
-
-    update_dialog_unmute_timeout(d, current_settings->use_default_mute_until, current_settings->mute_until,
-                                 new_settings.use_default_mute_until, new_settings.mute_until);
-
-    *current_settings = std::move(new_settings);
-    on_dialog_updated(dialog_id, "update_dialog_notification_settings");
-
-    if (is_dialog_muted(d)) {
-      // no check for was_muted to clean pending message notifications in chats with unsynchronized settings
-      remove_all_dialog_notifications(d, false, "update_dialog_notification_settings 2");
-    }
-    if (is_dialog_pinned_message_notifications_disabled(d) && d->notification_info != nullptr &&
-        d->notification_info->mention_notification_group_.is_valid() &&
-        d->notification_info->pinned_message_notification_message_id_.is_valid()) {
-      remove_dialog_pinned_message_notification(d, "update_dialog_notification_settings 3");
-    }
-    if (was_dialog_mentions_disabled != is_dialog_mention_notifications_disabled(d)) {
-      if (was_dialog_mentions_disabled) {
-        update_dialog_mention_notification_count(d);
-      } else {
-        remove_dialog_mention_notifications(d);
-      }
-    }
-
-    if (need_update.need_update_server || need_update.need_update_local) {
-      send_closure(G()->td(), &Td::send_update,
-                   td_api::make_object<td_api::updateChatNotificationSettings>(
-                       get_chat_id_object(dialog_id, "updateChatNotificationSettings"),
-                       get_chat_notification_settings_object(current_settings)));
-    }
-  }
-  return need_update.need_update_server;
-}
-
-void MessagesManager::schedule_dialog_unmute(DialogId dialog_id, bool use_default, int32 mute_until, int32 unix_time) {
-  if (!use_default && mute_until >= unix_time && mute_until < unix_time + 366 * 86400) {
-    dialog_unmute_timeout_.set_timeout_in(dialog_id.get(), mute_until - unix_time + 1);
-  } else {
-    dialog_unmute_timeout_.cancel_timeout(dialog_id.get());
-  }
-}
-
-void MessagesManager::update_dialog_unmute_timeout(Dialog *d, bool &old_use_default, int32 &old_mute_until,
-                                                   bool new_use_default, int32 new_mute_until) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  if (old_use_default == new_use_default && old_mute_until == new_mute_until) {
-    return;
-  }
-  CHECK(d != nullptr);
-  CHECK(old_mute_until >= 0);
-
-  schedule_dialog_unmute(d->dialog_id, new_use_default, new_mute_until, G()->unix_time());
-
-  auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(d->dialog_id);
-  auto scope_mute_until = td_->notification_settings_manager_->get_scope_mute_until(scope);
-  bool was_muted = (old_use_default ? scope_mute_until : old_mute_until) != 0;
-  bool is_muted = (new_use_default ? scope_mute_until : new_mute_until) != 0;
-  if (was_muted != is_muted && need_unread_counter(d->order)) {
-    auto unread_count = d->server_unread_count + d->local_unread_count;
-    if (unread_count != 0 || d->is_marked_as_unread) {
-      for (auto &list : get_dialog_lists(d)) {
-        if (unread_count != 0 && list.is_message_unread_count_inited_) {
-          int32 delta = was_muted ? -unread_count : unread_count;
-          list.unread_message_muted_count_ += delta;
-          send_update_unread_message_count(list, d->dialog_id, true, "update_dialog_unmute_timeout");
-        }
-        if (list.is_dialog_unread_count_inited_) {
-          int32 delta = was_muted ? -1 : 1;
-          list.unread_dialog_muted_count_ += delta;
-          if (unread_count == 0 && d->is_marked_as_unread) {
-            list.unread_dialog_muted_marked_count_ += delta;
-          }
-          send_update_unread_chat_count(list, d->dialog_id, true, "update_dialog_unmute_timeout");
-        }
-      }
-    }
-  }
-
-  old_use_default = new_use_default;
-  old_mute_until = new_mute_until;
-
-  if (was_muted != is_muted && td_->dialog_filter_manager_->have_dialog_filters()) {
-    update_dialog_lists(d, get_dialog_positions(d), true, false, "update_dialog_unmute_timeout");
-  }
-}
-
-void MessagesManager::on_update_notification_scope_is_muted(NotificationSettingsScope scope, bool is_muted) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-  if (G()->use_message_database()) {
-    std::unordered_map<DialogListId, int32, DialogListIdHash> delta;
-    std::unordered_map<DialogListId, int32, DialogListIdHash> total_count;
-    std::unordered_map<DialogListId, int32, DialogListIdHash> marked_count;
-    std::unordered_set<DialogListId, DialogListIdHash> dialog_list_ids;
-    dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-      Dialog *d = dialog.get();
-      if (need_unread_counter(d->order) && d->notification_settings.use_default_mute_until &&
-          td_->dialog_manager_->get_dialog_notification_setting_scope(d->dialog_id) == scope) {
-        int32 unread_count = d->server_unread_count + d->local_unread_count;
-        if (unread_count != 0) {
-          for (auto dialog_list_id : get_dialog_list_ids(d)) {
-            delta[dialog_list_id] += unread_count;
-            total_count[dialog_list_id]++;
-            dialog_list_ids.insert(dialog_list_id);
-          }
-        } else if (d->is_marked_as_unread) {
-          for (auto dialog_list_id : get_dialog_list_ids(d)) {
-            total_count[dialog_list_id]++;
-            marked_count[dialog_list_id]++;
-            dialog_list_ids.insert(dialog_list_id);
-          }
-        }
-      }
-    });
-    for (auto dialog_list_id : dialog_list_ids) {
-      auto *list = get_dialog_list(dialog_list_id);
-      CHECK(list != nullptr);
-      if (delta[dialog_list_id] != 0 && list->is_message_unread_count_inited_) {
-        if (is_muted) {
-          list->unread_message_muted_count_ += delta[dialog_list_id];
-        } else {
-          list->unread_message_muted_count_ -= delta[dialog_list_id];
-        }
-        send_update_unread_message_count(*list, DialogId(), true, "on_update_notification_scope_is_muted");
-      }
-      if (total_count[dialog_list_id] != 0 && list->is_dialog_unread_count_inited_) {
-        if (is_muted) {
-          list->unread_dialog_muted_count_ += total_count[dialog_list_id];
-          list->unread_dialog_muted_marked_count_ += marked_count[dialog_list_id];
-        } else {
-          list->unread_dialog_muted_count_ -= total_count[dialog_list_id];
-          list->unread_dialog_muted_marked_count_ -= marked_count[dialog_list_id];
-        }
-        send_update_unread_chat_count(*list, DialogId(), true, "on_update_notification_scope_is_muted");
-      }
-    }
-  }
-
-  if (td_->dialog_filter_manager_->have_dialog_filters()) {
-    dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-      Dialog *d = dialog.get();
-      if (need_unread_counter(d->order) && d->notification_settings.use_default_mute_until &&
-          td_->dialog_manager_->get_dialog_notification_setting_scope(d->dialog_id) == scope) {
-        update_dialog_lists(d, get_dialog_positions(d), true, false, "on_update_notification_scope_is_muted");
-      }
-    });
-  }
-
-  if (is_muted) {
-    dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-      Dialog *d = dialog.get();
-      if (need_unread_counter(d->order) && d->notification_settings.use_default_mute_until &&
-          td_->dialog_manager_->get_dialog_notification_setting_scope(d->dialog_id) == scope) {
-        remove_all_dialog_notifications(d, false, "on_update_notification_scope_is_muted");
-      }
-    });
-  }
-}
-
-void MessagesManager::on_dialog_unmute(DialogId dialog_id) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  if (d->notification_settings.use_default_mute_until) {
-    return;
-  }
-  if (d->notification_settings.mute_until == 0) {
-    return;
-  }
-
-  auto unix_time = G()->unix_time();
-  if (d->notification_settings.mute_until > unix_time) {
-    LOG(INFO) << "Failed to unmute " << dialog_id << " in " << unix_time << ", will be unmuted in "
-              << d->notification_settings.mute_until;
-    schedule_dialog_unmute(dialog_id, false, d->notification_settings.mute_until, unix_time);
-    return;
-  }
-
-  LOG(INFO) << "Unmute " << dialog_id;
-  update_dialog_unmute_timeout(d, d->notification_settings.use_default_mute_until, d->notification_settings.mute_until,
-                               false, 0);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatNotificationSettings>(
-                   get_chat_id_object(dialog_id, "updateChatNotificationSettings 2"),
-                   get_chat_notification_settings_object(&d->notification_settings)));
-  on_dialog_updated(dialog_id, "on_dialog_unmute");
-}
-
-void MessagesManager::on_update_dialog_notify_settings(
-    DialogId dialog_id, tl_object_ptr<telegram_api::peerNotifySettings> &&peer_notify_settings, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  VLOG(notifications) << "Receive notification settings for " << dialog_id << " from " << source << ": "
-                      << to_string(peer_notify_settings);
-
-  DialogNotificationSettings *current_settings = get_dialog_notification_settings(dialog_id, true);
-  if (current_settings == nullptr) {
-    return;
-  }
-
-  DialogNotificationSettings notification_settings =
-      ::td::get_dialog_notification_settings(std::move(peer_notify_settings), current_settings);
-  if (!notification_settings.is_synchronized) {
-    return;
-  }
-
-  update_dialog_notification_settings(dialog_id, current_settings, std::move(notification_settings));
-}
-
-void MessagesManager::on_update_dialog_available_reactions(
-    DialogId dialog_id, telegram_api::object_ptr<telegram_api::ChatReactions> &&available_reactions,
-    int32 reactions_limit, bool paid_reactions_available) {
-  Dialog *d = get_dialog_force(dialog_id, "on_update_dialog_available_reactions");
-  if (d == nullptr) {
-    return;
-  }
-
-  set_dialog_available_reactions(
-      d, ChatReactions(std::move(available_reactions), reactions_limit, paid_reactions_available));
-}
-
-void MessagesManager::set_dialog_available_reactions(Dialog *d, ChatReactions &&available_reactions) {
-  CHECK(d != nullptr);
-  switch (d->dialog_id.get_type()) {
-    case DialogType::Chat:
-    case DialogType::Channel:
-      // ok
-      break;
-    case DialogType::User:
-    case DialogType::SecretChat:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  if (td_->dialog_manager_->is_broadcast_channel(d->dialog_id)) {
-    available_reactions.fix_broadcast_reactions(active_reaction_types_);
-  }
-  if (d->available_reactions == available_reactions) {
-    if (!d->is_available_reactions_inited) {
-      d->is_available_reactions_inited = true;
-      on_dialog_updated(d->dialog_id, "set_dialog_available_reactions");
-    }
-    return;
-  }
-
-  LOG(INFO) << "Update available reactions in " << d->dialog_id << " to " << available_reactions;
-
-  auto old_active_reactions = get_active_reactions(d->available_reactions);
-  auto new_active_reactions = get_active_reactions(available_reactions);
-  bool need_update = old_active_reactions != new_active_reactions;
-  bool need_update_message_reactions_visibility =
-      old_active_reactions.empty() != new_active_reactions.empty() && !td_->auth_manager_->is_bot();
-
-  d->available_reactions = std::move(available_reactions);
-  d->is_available_reactions_inited = true;
-  if (need_update_message_reactions_visibility) {
-    if (!old_active_reactions.empty()) {
-      hide_dialog_message_reactions(d);
-    }
-
-    set_dialog_next_available_reactions_generation(d, d->available_reactions_generation);
-  }
-  on_dialog_updated(d->dialog_id, "set_dialog_available_reactions");
-
-  if (need_update) {
-    send_update_chat_available_reactions(d);
-  }
-}
-
-void MessagesManager::set_dialog_next_available_reactions_generation(Dialog *d, uint32 generation) {
-  CHECK(d != nullptr);
-  switch (d->dialog_id.get_type()) {
-    case DialogType::Chat:
-    case DialogType::Channel:
-      // ok
-      break;
-    case DialogType::User:
-    case DialogType::SecretChat:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  if (get_active_reactions(d->available_reactions).empty()) {
-    // 0 -> 1
-    // 1 -> 3
-    generation = generation + (generation & 1) + 1;
-  } else {
-    // 0 -> 2
-    // 1 -> 2
-    generation = generation - (generation & 1) + 2;
-  }
-  LOG(INFO) << "Change available reactions generation from " << d->available_reactions_generation << " to "
-            << generation << " in " << d->dialog_id;
-  d->available_reactions_generation = generation;
-}
-
-void MessagesManager::hide_dialog_message_reactions(Dialog *d) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto dialog_type = d->dialog_id.get_type();
-  CHECK(dialog_type == DialogType::Chat || dialog_type == DialogType::Channel);
-  auto message_ids =
-      find_dialog_messages(d, [](const Message *m) { return m->reactions != nullptr && !m->reactions->are_empty(); });
-  for (auto message_id : message_ids) {
-    Message *m = get_message(d, message_id);
-    CHECK(m != nullptr);
-    CHECK(m->reactions != nullptr);
-    bool need_update_unread_reactions = !m->reactions->unread_reactions_.empty();
-    m->reactions = nullptr;
-    // don't resave all messages to the database
-    if (need_update_unread_reactions) {
-      send_update_message_unread_reactions(d->dialog_id, m, d->unread_reaction_count);
-    }
-    send_update_message_interaction_info(d->dialog_id, m);
-  }
-  if (d->unread_reaction_count != 0) {
-    set_dialog_unread_reaction_count(d, 0);
-  }
-}
-
-void MessagesManager::set_active_reactions(vector<ReactionType> active_reaction_types) {
-  if (active_reaction_types == active_reaction_types_) {
-    return;
-  }
-
-  LOG(INFO) << "Set active reactions to " << active_reaction_types;
-  bool is_changed = active_reaction_types != active_reaction_types_;
-  active_reaction_types_ = std::move(active_reaction_types);
-
-  auto old_active_reaction_pos_ = std::move(active_reaction_pos_);
-  active_reaction_pos_.clear();
-  for (size_t i = 0; i < active_reaction_types_.size(); i++) {
-    CHECK(!active_reaction_types_[i].is_empty());
-    active_reaction_pos_[active_reaction_types_[i]] = i;
-  }
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-    Dialog *d = dialog.get();
-    switch (dialog_id.get_type()) {
-      case DialogType::User:
-        if (is_changed) {
-          send_update_chat_available_reactions(d);
-        }
-        break;
-      case DialogType::Chat:
-      case DialogType::Channel: {
-        auto old_reactions = d->available_reactions.get_active_reactions(old_active_reaction_pos_);
-        auto new_reactions = d->available_reactions.get_active_reactions(active_reaction_pos_);
-        if (old_reactions != new_reactions) {
-          if (old_reactions.empty() != new_reactions.empty()) {
-            if (!old_reactions.empty()) {
-              hide_dialog_message_reactions(d);
-            }
-            set_dialog_next_available_reactions_generation(d, d->available_reactions_generation);
-            on_dialog_updated(d->dialog_id, "set_active_reactions");
-          }
-          send_update_chat_available_reactions(d);
-        }
-        break;
-      }
-      case DialogType::SecretChat:
-        break;
-      default:
-        UNREACHABLE();
-        break;
-    }
-  });
-}
-
-ChatReactions MessagesManager::get_active_reactions(const ChatReactions &available_reactions) const {
-  if (td_->auth_manager_->is_bot()) {
-    return available_reactions;
-  }
-  return available_reactions.get_active_reactions(active_reaction_pos_);
-}
-
-ChatReactions MessagesManager::get_dialog_active_reactions(const Dialog *d) const {
-  CHECK(d != nullptr);
-  switch (d->dialog_id.get_type()) {
-    case DialogType::User:
-      return ChatReactions(true, true);
-    case DialogType::Chat:
-    case DialogType::Channel:
-      return get_active_reactions(d->available_reactions);
-    case DialogType::SecretChat:
-      return {};
-    default:
-      UNREACHABLE();
-      return {};
-  }
-}
-
-// affects all users
-ChatReactions MessagesManager::get_message_active_reactions(const Dialog *d, const Message *m) const {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  if (!m->message_id.is_valid() || !m->message_id.is_server()) {
-    return ChatReactions();
-  }
-  if (!m->reactions_are_possible && is_service_message_content(m->content->get_type())) {
-    return ChatReactions();
-  }
-  auto dialog_id = d->dialog_id;
-  if (is_discussion_message(dialog_id, m)) {
-    auto linked_dialog_id = m->forward_info->get_last_dialog_id();
-    d = get_dialog(linked_dialog_id);
-    if (d == nullptr) {
-      LOG(ERROR) << "Failed to find linked " << linked_dialog_id << " to determine correct active reactions";
-      return ChatReactions();
-    }
-  }
-  return get_dialog_active_reactions(d);
-}
-
-bool MessagesManager::need_poll_dialog_message_reactions(const Dialog *d) {
-  CHECK(d != nullptr);
-  switch (d->dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::SecretChat:
-      return false;
-    case DialogType::Chat:
-    case DialogType::Channel:
-      return (d->available_reactions_generation & 1) == 0;
-    default:
-      UNREACHABLE();
-      return {};
-  }
-}
-
-bool MessagesManager::need_poll_message_reactions(const Dialog *d, const Message *m) {
-  CHECK(m != nullptr);
-  if (!m->message_id.is_valid() || !m->message_id.is_server()) {
-    return false;
-  }
-  if (!need_poll_dialog_message_reactions(d)) {
-    return false;
-  }
-  if (m->reactions != nullptr) {
-    return true;
-  }
-  if (m->available_reactions_generation == d->available_reactions_generation) {
-    return false;
-  }
-  if (is_service_message_content(m->content->get_type()) && !m->reactions_are_possible) {
-    return false;
-  }
-  return true;
-}
-
-bool MessagesManager::update_dialog_silent_send_message(Dialog *d, bool silent_send_message) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return false;
-  }
-
-  CHECK(d != nullptr);
-  LOG_IF(WARNING, !d->notification_settings.is_synchronized)
-      << "Have unknown notification settings in " << d->dialog_id;
-  if (d->notification_settings.silent_send_message == silent_send_message) {
-    return false;
-  }
-
-  LOG(INFO) << "Update silent send message in " << d->dialog_id << " to " << silent_send_message;
-  d->notification_settings.silent_send_message = silent_send_message;
-
-  on_dialog_updated(d->dialog_id, "update_dialog_silent_send_message");
-
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatDefaultDisableNotification>(
-                   get_chat_id_object(d->dialog_id, "updateChatDefaultDisableNotification"), silent_send_message));
-  return true;
-}
-
-void MessagesManager::reget_dialog_action_bar(DialogId dialog_id, const char *source, bool is_repair) {
-  if (G()->close_flag() || !dialog_id.is_valid() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, source);
-  if (d == nullptr) {
-    return;
-  }
-
-  if (is_repair && !d->need_repair_action_bar) {
-    d->need_repair_action_bar = true;
-    on_dialog_updated(dialog_id, source);
-  }
-
-  LOG(INFO) << "Reget action bar in " << dialog_id << " from " << source;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      td_->user_manager_->reload_user_full(dialog_id.get_user_id(), Auto(), source);
-      return;
-    case DialogType::Chat:
-    case DialogType::Channel:
-      return td_->dialog_manager_->reget_peer_settings(dialog_id);
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void MessagesManager::repair_dialog_action_bar(Dialog *d, const char *source) {
-  CHECK(d != nullptr);
-  auto dialog_id = d->dialog_id;
-  d->need_repair_action_bar = true;
-  if (td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    create_actor<SleepActor>(
-        "RepairChatActionBarActor", 1.0, PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, source](Unit) {
-          send_closure(actor_id, &MessagesManager::reget_dialog_action_bar, dialog_id, source, true);
-        }))
-        .release();
-  }
-  // there is no need to change action bar
-  on_dialog_updated(dialog_id, source);
-}
-
-void MessagesManager::hide_dialog_action_bar(DialogId dialog_id) {
-  Dialog *d = get_dialog_force(dialog_id, "hide_dialog_action_bar");
-  if (d == nullptr) {
-    return;
-  }
-  hide_dialog_action_bar(d);
-}
-
-void MessagesManager::hide_dialog_action_bar(Dialog *d) {
-  CHECK(d->dialog_id.get_type() != DialogType::SecretChat);
-  if (!d->know_action_bar) {
-    return;
-  }
-  if (d->need_repair_action_bar) {
-    d->need_repair_action_bar = false;
-    on_dialog_updated(d->dialog_id, "hide_dialog_action_bar");
-  }
-  if (d->action_bar == nullptr) {
-    return;
-  }
-
-  d->action_bar = nullptr;
-  send_update_chat_action_bar(d);
-}
-
-void MessagesManager::remove_dialog_action_bar(DialogId dialog_id, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "remove_dialog_action_bar"));
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    dialog_id = DialogId(td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id()));
-    TRY_RESULT_PROMISE_ASSIGN(promise, d,
-                              check_dialog_access(dialog_id, false, AccessRights::Read, "remove_dialog_action_bar 2"));
-  }
-
-  if (!d->know_action_bar) {
-    return promise.set_error(Status::Error(400, "Can't update chat action bar"));
-  }
-  if (d->need_repair_action_bar) {
-    d->need_repair_action_bar = false;
-    on_dialog_updated(dialog_id, "remove_dialog_action_bar");
-  }
-  if (d->action_bar == nullptr) {
-    return promise.set_value(Unit());
-  }
-
-  d->action_bar = nullptr;
-  send_update_chat_action_bar(d);
-
-  td_->dialog_manager_->toggle_dialog_report_spam_state_on_server(dialog_id, false, 0, std::move(promise));
-}
-
-void MessagesManager::hide_all_business_bot_manager_bars() {
-  dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-    Dialog *d = dialog.get();
-    if (d->business_bot_manage_bar != nullptr) {
-      d->business_bot_manage_bar = nullptr;
-      send_update_chat_business_bot_manage_bar(d);
-    }
-  });
-}
-
-void MessagesManager::repair_dialog_active_group_call_id(DialogId dialog_id) {
-  if (td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    LOG(INFO) << "Repair active voice chat ID in " << dialog_id;
-    create_actor<SleepActor>(
-        "RepairChatActiveVoiceChatId", 1.0, PromiseCreator::lambda([actor_id = actor_id(this), dialog_id](Unit) {
-          send_closure(actor_id, &MessagesManager::do_repair_dialog_active_group_call_id, dialog_id);
-        }))
-        .release();
-  }
-}
-
-void MessagesManager::do_repair_dialog_active_group_call_id(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  bool need_repair_active_group_call_id = d->has_active_group_call && !d->active_group_call_id.is_valid();
-  bool need_repair_expected_group_call_id =
-      d->has_expected_active_group_call_id && d->active_group_call_id != d->expected_active_group_call_id;
-  d->has_expected_active_group_call_id = false;
-  if (!need_repair_active_group_call_id && !need_repair_expected_group_call_id) {
-    return;
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return;
-  }
-
-  td_->dialog_manager_->reload_dialog_info_full(dialog_id, "do_repair_dialog_active_group_call_id");
-}
-
-void MessagesManager::on_get_peer_settings(DialogId dialog_id,
-                                           tl_object_ptr<telegram_api::peerSettings> &&peer_settings,
-                                           bool ignore_privacy_exception) {
-  CHECK(peer_settings != nullptr);
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (dialog_id.get_type() == DialogType::User && !ignore_privacy_exception) {
-    auto user_id = dialog_id.get_user_id();
-    td_->user_manager_->on_update_user_need_phone_number_privacy_exception(user_id,
-                                                                           peer_settings->need_contacts_exception_);
-    td_->user_manager_->on_update_user_charge_paid_message_stars(
-        user_id, StarManager::get_star_count(peer_settings->charge_paid_message_stars_));
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "on_get_peer_settings");
-  if (d == nullptr) {
-    return;
-  }
-
-  auto business_bot_manage_bar = BusinessBotManageBar::create(
-      peer_settings->business_bot_paused_, peer_settings->business_bot_can_reply_,
-      UserId(peer_settings->business_bot_id_), std::move(peer_settings->business_bot_manage_url_));
-  fix_dialog_business_bot_manage_bar(dialog_id, business_bot_manage_bar.get());
-  if (d->business_bot_manage_bar != business_bot_manage_bar) {
-    d->business_bot_manage_bar = std::move(business_bot_manage_bar);
-    send_update_chat_business_bot_manage_bar(d);
-  }
-
-  auto action_bar = DialogActionBar::create(std::move(peer_settings));
-  fix_dialog_action_bar(d, action_bar.get());
-
-  if (d->action_bar == action_bar) {
-    if (!d->know_action_bar || d->need_repair_action_bar) {
-      d->know_action_bar = true;
-      d->need_repair_action_bar = false;
-      on_dialog_updated(d->dialog_id, "on_get_peer_settings");
-    }
-    return;
-  }
-
-  d->know_action_bar = true;
-  d->need_repair_action_bar = false;
-  d->action_bar = std::move(action_bar);
-
-  send_update_chat_action_bar(d);
-}
-
-void MessagesManager::fix_dialog_action_bar(const Dialog *d, DialogActionBar *action_bar) {
-  if (action_bar == nullptr) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  action_bar->fix(td_, d->dialog_id, d->is_blocked, d->has_outgoing_messages, d->folder_id);
-}
-
-void MessagesManager::fix_dialog_business_bot_manage_bar(DialogId dialog_id,
-                                                         BusinessBotManageBar *business_bot_manage_bar) {
-  if (business_bot_manage_bar != nullptr) {
-    business_bot_manage_bar->fix(dialog_id);
-  }
-}
-
-Result<string> MessagesManager::get_login_button_url(MessageFullId message_full_id, int64 button_id) {
-  TRY_RESULT(d,
-             check_dialog_access(message_full_id.get_dialog_id(), false, AccessRights::Read, "get_login_button_url"));
-
-  auto m = get_message_force(d, message_full_id.get_message_id(), "get_login_button_url");
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-  if (m->reply_markup == nullptr || m->reply_markup->type != ReplyMarkup::Type::InlineKeyboard) {
-    return Status::Error(400, "Message has no inline keyboard");
-  }
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Can't use login buttons from scheduled messages");
-  }
-  if (!m->message_id.is_server()) {
-    // it shouldn't have UrlAuth buttons anyway
-    return Status::Error(400, "Message is not server");
-  }
-  if (button_id < std::numeric_limits<int32>::min() || button_id > std::numeric_limits<int32>::max()) {
-    return Status::Error(400, "Invalid button identifier specified");
-  }
-
-  for (auto &row : m->reply_markup->inline_keyboard) {
-    for (auto &button : row) {
-      if (button.type == InlineKeyboardButton::Type::UrlAuth && button.id == button_id) {
-        return button.data;
-      }
-    }
-  }
-
-  return Status::Error(400, "Button not found");
-}
-
-void MessagesManager::load_secret_thumbnail(FileUploadId thumbnail_file_upload_id) {
-  class Callback final : public FileManager::DownloadCallback {
-   public:
-    explicit Callback(Promise<Unit> download_promise) : download_promise_(std::move(download_promise)) {
-    }
-
-    void on_download_ok(FileId file_id) final {
-      download_promise_.set_value(Unit());
-    }
-    void on_download_error(FileId file_id, Status error) final {
-      download_promise_.set_error(std::move(error));
-    }
-
-   private:
-    Promise<Unit> download_promise_;
-  };
-
-  auto thumbnail_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), thumbnail_file_upload_id](Result<BufferSlice> r_thumbnail) {
-        BufferSlice thumbnail_slice;
-        if (r_thumbnail.is_ok()) {
-          thumbnail_slice = r_thumbnail.move_as_ok();
-        }
-        send_closure(actor_id, &MessagesManager::on_load_secret_thumbnail, thumbnail_file_upload_id,
-                     std::move(thumbnail_slice));
-      });
-
-  auto thumbnail_file_id = thumbnail_file_upload_id.get_file_id();
-  auto download_promise = PromiseCreator::lambda(
-      [thumbnail_file_id, thumbnail_promise = std::move(thumbnail_promise)](Result<Unit> r_download) mutable {
-        if (r_download.is_error()) {
-          thumbnail_promise.set_error(r_download.move_as_error());
-          return;
-        }
-        send_closure(G()->file_manager(), &FileManager::get_content, thumbnail_file_id, std::move(thumbnail_promise));
-      });
-
-  auto internal_download_id = FileManager::get_internal_download_id();
-  send_closure(G()->file_manager(), &FileManager::download, thumbnail_file_id, internal_download_id,
-               std::make_shared<Callback>(std::move(download_promise)), 1, -1, -1,
-               Promise<td_api::object_ptr<td_api::file>>());
-}
-
-void MessagesManager::on_upload_media(FileUploadId file_upload_id,
-                                      telegram_api::object_ptr<telegram_api::InputFile> input_file,
-                                      telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_encrypted_file) {
-  LOG(INFO) << "Message " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  if (it == being_uploaded_files_.end()) {
-    // callback may be called just before the file upload was canceled
-    return;
-  }
-
-  auto message_full_id = it->second.message_full_id;
-  auto media_pos = it->second.media_pos;
-  auto edit_generation = it->second.edit_generation;
-
-  being_uploaded_files_.erase(it);
-
-  const Message *m = get_message(message_full_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel, do not need to send or edit it
-    // file upload should be already canceled in cancel_send_message_query
-    LOG(INFO) << "Message with a media has already been deleted";
-    return;
-  }
-
-  bool is_edit = m->message_id.is_any_server();
-  auto dialog_id = message_full_id.get_dialog_id();
-  auto can_send_status = can_send_message(dialog_id);
-  if (!is_edit && can_send_status.is_error()) {
-    // user has left the chat during upload of the file or lost their privileges
-    LOG(INFO) << "Can't send a message to " << dialog_id << ": " << can_send_status;
-
-    fail_send_message(message_full_id, std::move(can_send_status));
-    return;
-  }
-  if (is_edit && m->edit_generation != edit_generation) {
-    cancel_upload_file(file_upload_id, "on_upload_media");
-    return;
-  }
-
-  auto thumbnail_file_upload_id = get_message_send_thumbnail_file_upload_id(dialog_id, m, media_pos);
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      if (input_file != nullptr && thumbnail_file_upload_id.is_valid()) {
-        // TODO: download thumbnail if needed (like in secret chats)
-        LOG(INFO) << "Ask to upload thumbnail " << thumbnail_file_upload_id;
-        bool is_inserted = being_uploaded_thumbnails_
-                               .emplace(thumbnail_file_upload_id,
-                                        UploadedThumbnailInfo{message_full_id, file_upload_id, std::move(input_file),
-                                                              media_pos, m->edit_generation})
-                               .second;
-        CHECK(is_inserted);
-        td_->file_manager_->upload(thumbnail_file_upload_id, upload_thumbnail_callback_, 32, m->message_id.get());
-      } else {
-        do_send_media(dialog_id, m, media_pos, std::move(input_file), nullptr);
-      }
-      break;
-    case DialogType::SecretChat:
-      CHECK(media_pos == -1);
-      if (thumbnail_file_upload_id.is_valid()) {
-        LOG(INFO) << "Ask to load thumbnail " << thumbnail_file_upload_id;
-        bool is_inserted = being_loaded_secret_thumbnails_
-                               .emplace(thumbnail_file_upload_id,
-                                        UploadedSecretThumbnailInfo{message_full_id, std::move(input_encrypted_file)})
-                               .second;
-        CHECK(is_inserted);
-
-        load_secret_thumbnail(thumbnail_file_upload_id);
-      } else {
-        do_send_secret_media(dialog_id, m, std::move(input_encrypted_file), BufferSlice());
-      }
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-void MessagesManager::do_send_media(DialogId dialog_id, const Message *m, int32 media_pos,
-                                    telegram_api::object_ptr<telegram_api::InputFile> input_file,
-                                    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) {
-  CHECK(m != nullptr);
-
-  bool have_input_file = input_file != nullptr;
-  bool have_input_thumbnail = input_thumbnail != nullptr;
-  LOG(INFO) << "Do send media " << MessageFullId{dialog_id, m->message_id} << ", have_input_file = " << have_input_file
-            << ", have_input_thumbnail = " << have_input_thumbnail << ", self-destruct time = " << m->ttl
-            << ", media_pos = " << media_pos;
-
-  const MessageContent *content = nullptr;
-  if (m->message_id.is_any_server()) {
-    CHECK(media_pos == -1);
-    content = get_edited_message_content({dialog_id, m->message_id});
-    if (content == nullptr) {
-      LOG(ERROR) << "Message has no edited content";
-      return;
-    }
-  } else {
-    content = m->content.get();
-  }
-
-  auto file_upload_id = get_message_send_file_upload_id(dialog_id, m, media_pos);
-  auto thumbnail_file_upload_id = get_message_send_thumbnail_file_upload_id(dialog_id, m, media_pos);
-  auto input_media =
-      get_message_content_input_media(content, media_pos, td_, std::move(input_file), std::move(input_thumbnail),
-                                      file_upload_id, thumbnail_file_upload_id, m->ttl, m->send_emoji, true);
-  LOG_CHECK(input_media != nullptr) << to_string(get_message_object(dialog_id, m, "do_send_media")) << ' ' << media_pos
-                                    << ' ' << have_input_file << ' ' << have_input_thumbnail << ' ' << file_upload_id
-                                    << ' ' << thumbnail_file_upload_id << ' ' << m->ttl;
-
-  on_message_media_uploaded(dialog_id, m, media_pos, std::move(input_media));
-}
-
-void MessagesManager::do_send_secret_media(
-    DialogId dialog_id, const Message *m,
-    telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_encrypted_file, BufferSlice thumbnail) {
-  CHECK(dialog_id.get_type() == DialogType::SecretChat);
-  CHECK(m != nullptr);
-  CHECK(m->message_id.is_valid());
-  CHECK(m->message_id.is_yet_unsent());
-
-  LOG(INFO) << "Do send secret media " << MessageFullId{dialog_id, m->message_id};
-
-  auto layer = td_->user_manager_->get_secret_chat_layer(dialog_id.get_secret_chat_id());
-  on_secret_message_media_uploaded(
-      dialog_id, m,
-      get_message_content_secret_input_media(m->content.get(), td_, std::move(input_encrypted_file),
-                                             std::move(thumbnail), layer));
-}
-
-void MessagesManager::on_upload_media_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(WARNING) << "Message " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  if (it == being_uploaded_files_.end()) {
-    // callback may be called just before the file upload was canceled
-    return;
-  }
-
-  auto message_full_id = it->second.message_full_id;
-  auto edit_generation = it->second.edit_generation;
-
-  being_uploaded_files_.erase(it);
-
-  bool is_edit = message_full_id.get_message_id().is_any_server();
-  if (is_edit) {
-    const auto *m = get_message(message_full_id);
-    if (m == nullptr || m->edit_generation != edit_generation) {
-      cancel_upload_file(file_upload_id, "on_upload_media_error");
-      return;
-    }
-    fail_edit_message_media(message_full_id, std::move(status));
-  } else {
-    fail_send_message(message_full_id, std::move(status));
-  }
-}
-
-void MessagesManager::on_load_secret_thumbnail(FileUploadId thumbnail_file_upload_id, BufferSlice thumbnail) {
-  if (G()->close_flag()) {
-    // do not send secret media if closing, thumbnail may be wrong
-    return;
-  }
-
-  LOG(INFO) << "SecretThumbnail " << thumbnail_file_upload_id << " has been loaded with size " << thumbnail.size();
-
-  auto it = being_loaded_secret_thumbnails_.find(thumbnail_file_upload_id);
-  if (it == being_loaded_secret_thumbnails_.end()) {
-    // just in case, as in on_upload_thumbnail
-    return;
-  }
-
-  auto message_full_id = it->second.message_full_id;
-  auto input_file = std::move(it->second.input_file);
-
-  being_loaded_secret_thumbnails_.erase(it);
-
-  Message *m = get_message(message_full_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user, do not need to send it
-    // file upload should be already canceled in cancel_send_message_query
-    LOG(INFO) << "Message with a media has already been deleted";
-    return;
-  }
-  CHECK(m->message_id.is_yet_unsent());
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  if (thumbnail.empty()) {
-    delete_message_content_thumbnail(m->content.get(), td_);
-    delete_message_send_thumbnail_file_upload_id(dialog_id, m, -1);
-  }
-
-  auto can_send_status = can_send_message(dialog_id);
-  if (can_send_status.is_error()) {
-    // secret chat was closed during load of the file
-    LOG(INFO) << "Can't send a message to " << dialog_id << ": " << can_send_status;
-
-    fail_send_message(message_full_id, std::move(can_send_status));
-    return;
-  }
-
-  do_send_secret_media(dialog_id, m, std::move(input_file), std::move(thumbnail));
-}
-
-void MessagesManager::on_upload_thumbnail(FileUploadId thumbnail_file_upload_id,
-                                          telegram_api::object_ptr<telegram_api::InputFile> thumbnail_input_file) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(INFO) << "Thumbnail " << thumbnail_file_upload_id << " has been uploaded as " << to_string(thumbnail_input_file);
-
-  auto it = being_uploaded_thumbnails_.find(thumbnail_file_upload_id);
-  if (it == being_uploaded_thumbnails_.end()) {
-    // callback may be called just before the thumbnail upload was canceled
-    return;
-  }
-
-  auto message_full_id = it->second.message_full_id;
-  auto file_upload_id = it->second.file_upload_id;
-  auto input_file = std::move(it->second.input_file);
-  auto media_pos = it->second.media_pos;
-  auto edit_generation = it->second.edit_generation;
-
-  being_uploaded_thumbnails_.erase(it);
-
-  Message *m = get_message(message_full_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel, do not need to send or edit it
-    // thumbnail file upload should be already canceled in cancel_send_message_query
-    LOG(INFO) << "Message with a media has already been deleted";
-    return;
-  }
-
-  bool is_edit = m->message_id.is_any_server();
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  if (thumbnail_input_file == nullptr) {
-    delete_message_content_thumbnail(is_edit ? get_edited_message_content(message_full_id) : m->content.get(), td_,
-                                     media_pos);
-    delete_message_send_thumbnail_file_upload_id(dialog_id, m, media_pos);
-  }
-
-  auto can_send_status = can_send_message(dialog_id);
-  if (!is_edit && can_send_status.is_error()) {
-    // user has left the chat during upload of the thumbnail or lost their privileges
-    LOG(INFO) << "Can't send a message to " << dialog_id << ": " << can_send_status;
-
-    fail_send_message(message_full_id, std::move(can_send_status));
-    return;
-  }
-  if (is_edit && m->edit_generation != edit_generation) {
-    cancel_upload_file(file_upload_id, "on_upload_thumbnail");
-    cancel_upload_file(thumbnail_file_upload_id, "on_upload_thumbnail");
-    return;
-  }
-
-  do_send_media(dialog_id, m, media_pos, std::move(input_file), std::move(thumbnail_input_file));
-}
-
-void MessagesManager::before_get_difference() {
-  running_get_difference_ = true;
-
-  // scheduled messages are not returned in getDifference, so we must always reget them after it
-  scheduled_messages_sync_generation_++;
-}
-
-void MessagesManager::after_get_difference() {
-  CHECK(!td_->updates_manager_->running_get_difference());
-
-  running_get_difference_ = false;
-
-  if (!pending_on_get_dialogs_.empty()) {
-    LOG(INFO) << "Apply postponed results of getDialogs";
-    for (auto &res : pending_on_get_dialogs_) {
-      on_get_dialogs(res.folder_id, std::move(res.dialogs), res.total_count, std::move(res.messages),
-                     std::move(res.promise));
-    }
-    pending_on_get_dialogs_.clear();
-  }
-
-  if (!postponed_chat_read_inbox_updates_.empty()) {
-    LOG(INFO) << "Send postponed chat read inbox updates";
-    auto dialog_ids = std::move(postponed_chat_read_inbox_updates_);
-    for (auto dialog_id : dialog_ids) {
-      send_update_chat_read_inbox(get_dialog(dialog_id), false, "after_get_difference");
-    }
-  }
-  while (!postponed_unread_message_count_updates_.empty()) {
-    auto *list = get_dialog_list(*postponed_unread_message_count_updates_.begin());
-    CHECK(list != nullptr);
-    send_update_unread_message_count(*list, DialogId(), true, "after_get_difference");
-  }
-  while (!postponed_unread_chat_count_updates_.empty()) {
-    auto *list = get_dialog_list(*postponed_unread_chat_count_updates_.begin());
-    CHECK(list != nullptr);
-    send_update_unread_chat_count(*list, DialogId(), true, "after_get_difference");
-  }
-
-  vector<MessageFullId> update_message_ids_to_delete;
-  for (auto &it : update_message_ids_) {
-    // there can be unhandled updateMessageID updates after getDifference even for ordinary chats,
-    // because despite updates coming during getDifference have already been applied,
-    // some of them could be postponed because of PTS gap
-    auto message_full_id = it.first;
-    auto dialog_id = message_full_id.get_dialog_id();
-    auto message_id = message_full_id.get_message_id();
-    auto old_message_id = it.second;
-    CHECK(message_id.is_valid());
-    CHECK(message_id.is_server());
-    switch (dialog_id.get_type()) {
-      case DialogType::Channel:
-        // get channel difference may prevent updates from being applied
-        if (running_get_channel_difference(dialog_id)) {
-          break;
-        }
-      // fallthrough
-      case DialogType::User:
-      case DialogType::Chat: {
-        if (!have_message_force({dialog_id, old_message_id}, "after_get_difference")) {
-          // The sent message has already been deleted by the user or sent to inaccessible channel.
-          // The sent message may never be received, but we will need updateMessageID in case the message is received
-          // to delete it from the server and not add to the chat.
-          // But if the chat is inaccessible or the message is in an inaccessible chat part, then we will not be able to
-          // add the message or delete it from the server. In this case we forget updateMessageID for such messages in
-          // order to not check them over and over.
-          const Dialog *d = get_dialog(dialog_id);
-          if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read) ||
-              (d != nullptr &&
-               message_id <= td::max(d->last_clear_history_message_id, d->max_unavailable_message_id))) {
-            update_message_ids_to_delete.push_back(message_full_id);
-          }
-          break;
-        }
-
-        const Dialog *d = get_dialog(dialog_id);
-        CHECK(d != nullptr);
-        if (message_id <= d->last_new_message_id || td_->auth_manager_->is_bot()) {
-          messages_to_restore_.emplace(message_full_id, old_message_id);
-        } else if (dialog_id.get_type() == DialogType::Channel) {
-          schedule_get_channel_difference(dialog_id, 0, message_id, 0.001, "after_get_difference");
-        }
-        break;
-      }
-      case DialogType::SecretChat:
-        break;
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-  for (const auto &message_full_id : update_message_ids_to_delete) {
-    update_message_ids_.erase(message_full_id);
-  }
-
-  if (!messages_to_restore_.empty()) {
-    schedule_restore_missing_messages_after_get_difference();
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    td_->dialog_manager_->load_dialog_marks_as_unread();
-
-    auto dialog_list_id = DialogListId(FolderId::archive());
-    auto *list = get_dialog_list(dialog_list_id);
-    CHECK(list != nullptr);
-    if (!list->is_dialog_unread_count_inited_) {
-      int32 limit = list->are_pinned_dialogs_inited_ ? static_cast<int32>(list->pinned_dialogs_.size())
-                                                     : get_pinned_dialogs_limit(dialog_list_id);
-      LOG(INFO) << "Loading chat list in " << dialog_list_id << " to init total unread count";
-      get_dialogs_from_list(dialog_list_id, limit + 2, Auto());
-    }
-  }
-}
-
-void MessagesManager::schedule_restore_missing_messages_after_get_difference() {
-  if (!restore_missing_messages_timeout_.has_timeout()) {
-    restore_missing_messages_timeout_.set_callback(std::move(on_restore_missing_messages_timeout_callback));
-    restore_missing_messages_timeout_.set_callback_data(static_cast<void *>(this));
-    restore_missing_messages_timeout_.set_timeout_in(1.0);
-  }
-}
-
-void MessagesManager::on_restore_missing_messages_timeout_callback(void *messages_manager_ptr) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto messages_manager = static_cast<MessagesManager *>(messages_manager_ptr);
-  send_closure_later(messages_manager->actor_id(messages_manager),
-                     &MessagesManager::restore_missing_messages_after_get_difference);
-}
-
-void MessagesManager::restore_missing_messages_after_get_difference() {
-  if (running_get_difference_) {
-    // the restore will be scheduled again after get difference is finished
-    return;
-  }
-  vector<MessageFullId> restored_message_full_ids;
-  vector<std::pair<MessageFullId, MessageId>> missing_messages;
-  size_t MAX_RESTORED_MESSAGES = 10u;
-  for (const auto &pair : messages_to_restore_) {
-    auto message_full_id = pair.first;
-    restored_message_full_ids.push_back(message_full_id);
-    if (update_message_ids_.count(message_full_id) != 0) {
-      missing_messages.emplace_back(pair.first, pair.second);
-      if (missing_messages.size() >= MAX_RESTORED_MESSAGES) {
-        break;
-      }
-    }
-  }
-  for (auto message_full_id : restored_message_full_ids) {
-    messages_to_restore_.erase(message_full_id);
-  }
-  if (missing_messages.empty()) {
-    CHECK(messages_to_restore_.empty());
-    return;
-  }
-  if (!messages_to_restore_.empty()) {
-    LOG(WARNING) << "Postpone restore of " << messages_to_restore_.size() << " messages";
-    schedule_restore_missing_messages_after_get_difference();
-  }
-  bool need_warning = messages_to_restore_.size() > td_->updates_manager_->get_pending_pts_update_count();
-  for (const auto &pair : missing_messages) {
-    auto message_full_id = pair.first;
-    auto old_message_id = pair.second;
-    if (need_warning || message_full_id.get_dialog_id().get_type() == DialogType::Channel) {
-      LOG(WARNING) << "Receive updateMessageID from " << old_message_id << " to " << message_full_id
-                   << " but didn't receive the corresponding message";
-    }
-    get_message_from_server(
-        message_full_id,
-        PromiseCreator::lambda([actor_id = actor_id(this), message_full_id, old_message_id](Result<Unit> result) {
-          send_closure(actor_id, &MessagesManager::on_restore_missing_message_after_get_difference, message_full_id,
-                       old_message_id, std::move(result));
-        }),
-        "get missing");
-  }
-}
-
-void MessagesManager::on_restore_missing_message_after_get_difference(MessageFullId message_full_id,
-                                                                      MessageId old_message_id, Result<Unit> result) {
-  if (result.is_error()) {
-    LOG(WARNING) << "Failed to get missing " << message_full_id << " for " << old_message_id << ": " << result.error();
-  } else {
-    LOG(WARNING) << "Successfully get missing " << message_full_id << " for " << old_message_id;
-
-    if (update_message_ids_.count(message_full_id) > 0) {
-      LOG(ERROR) << "Receive messageEmpty instead of missing " << message_full_id << " for " << old_message_id;
-
-      delete_dialog_messages(message_full_id.get_dialog_id(), {old_message_id}, false,
-                             "on_restore_missing_message_after_get_difference");
-
-      update_message_ids_.erase(message_full_id);
-    }
-  }
-}
-
-void MessagesManager::on_get_empty_messages(DialogId dialog_id, const vector<MessageId> &empty_message_ids) {
-  if (!empty_message_ids.empty()) {
-    delete_dialog_messages(dialog_id, empty_message_ids, false, "on_get_empty_messages");
-  }
-}
-
-void MessagesManager::get_channel_difference_if_needed(DialogId dialog_id, MessageId message_id, const char *source) {
-  if (!need_channel_difference_to_add_message(dialog_id, message_id)) {
-    return;
-  }
-  const Dialog *d = get_dialog(dialog_id);
-  get_channel_difference(dialog_id, d == nullptr ? load_channel_pts(dialog_id) : d->pts, 0, message_id, true, source);
-}
-
-void MessagesManager::get_channel_difference_if_needed(DialogId dialog_id, MessagesInfo &&messages_info,
-                                                       Promise<MessagesInfo> &&promise, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_value(std::move(messages_info));
-  }
-  if (!dialog_id.is_valid()) {
-    return get_channel_differences_if_needed(std::move(messages_info), std::move(promise), source);
-  }
-  for (auto &message : messages_info.messages) {
-    if (need_channel_difference_to_add_message(dialog_id, message)) {
-      auto max_message_id = MessageId::get_max_message_id(messages_info.messages);
-      return run_after_channel_difference(
-          dialog_id, max_message_id,
-          PromiseCreator::lambda([messages_info = std::move(messages_info), promise = std::move(promise)](
-                                     Unit ignored) mutable { promise.set_value(std::move(messages_info)); }),
-          source);
-    }
-  }
-  promise.set_value(std::move(messages_info));
-}
-
-void MessagesManager::get_channel_differences_if_needed(MessagesInfo &&messages_info, Promise<MessagesInfo> &&promise,
-                                                        const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_value(std::move(messages_info));
-  }
-  MultiPromiseActorSafe mpas{"GetChannelDifferencesIfNeededMultiPromiseActor"};
-  mpas.add_promise(Promise<Unit>());
-  mpas.set_ignore_errors(true);
-  auto lock = mpas.get_promise();
-  for (auto &message : messages_info.messages) {
-    if (message == nullptr) {
-      continue;
-    }
-
-    auto dialog_id = DialogId::get_message_dialog_id(message);
-    if (need_channel_difference_to_add_message(dialog_id, message)) {
-      run_after_channel_difference(dialog_id, MessageId::get_message_id(message, false), mpas.get_promise(), source);
-    }
-  }
-  // must be added after messages_info is checked
-  mpas.add_promise(PromiseCreator::lambda([messages_info = std::move(messages_info), promise = std::move(promise)](
-                                              Unit ignored) mutable { promise.set_value(std::move(messages_info)); }));
-  lock.set_value(Unit());
-}
-
-void MessagesManager::get_channel_differences_if_needed(
-    const vector<const telegram_api::object_ptr<telegram_api::Message> *> &messages, Promise<Unit> &&promise,
-    const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_value(Unit());
-  }
-  MultiPromiseActorSafe mpas{"GetChannelDifferencesIfNeededGenericMultiPromiseActor"};
-  mpas.add_promise(std::move(promise));
-  mpas.set_ignore_errors(true);
-  auto lock = mpas.get_promise();
-  for (const auto &message : messages) {
-    if (message == nullptr) {
-      continue;
-    }
-    auto dialog_id = DialogId::get_message_dialog_id(*message);
-    if (need_channel_difference_to_add_message(dialog_id, *message)) {
-      run_after_channel_difference(dialog_id, MessageId::get_message_id(*message, false), mpas.get_promise(), source);
-    }
-  }
-  lock.set_value(Unit());
-}
-
-void MessagesManager::on_get_messages(vector<tl_object_ptr<telegram_api::Message>> &&messages, bool is_channel_message,
-                                      bool is_scheduled, Promise<Unit> &&promise, const char *source) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  for (auto &message : messages) {
-    LOG(INFO) << "Receive " << to_string(message);
-    on_get_message(std::move(message), false, is_channel_message, is_scheduled, source);
-  }
-  promise.set_value(Unit());
-}
-
-bool MessagesManager::delete_newer_server_messages_at_the_end(Dialog *d, MessageId max_message_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(!max_message_id.is_scheduled());
-  auto message_ids = d->ordered_messages.find_newer_messages(max_message_id);
-  if (message_ids.empty()) {
-    return false;
-  }
-
-  vector<MessageId> server_message_ids;
-  vector<MessageId> kept_message_ids;
-  for (auto message_id : message_ids) {
-    CHECK(message_id > max_message_id);
-    if (message_id.is_server()) {
-      server_message_ids.push_back(message_id);
-    } else {
-      kept_message_ids.push_back(message_id);
-    }
-  }
-
-  delete_dialog_messages(d, server_message_ids, false, "delete_newer_server_messages_at_the_end");
-
-  // connect all messages with ID > max_message_id
-  for (size_t i = 0; i + 1 < kept_message_ids.size(); i++) {
-    d->ordered_messages.attach_message_to_next(kept_message_ids[i], "delete_newer_server_messages_at_the_end");
-  }
-
-  return !kept_message_ids.empty();
-}
-
-void MessagesManager::on_get_history(DialogId dialog_id, MessageId from_message_id, MessageId old_last_new_message_id,
-                                     int32 offset, int32 limit, bool from_the_end,
-                                     vector<tl_object_ptr<telegram_api::Message>> &&messages, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Receive " << messages.size() << " history messages " << (from_the_end ? "from the end " : "") << "in "
-            << dialog_id << " from " << from_message_id << " with offset " << offset << " and limit " << limit;
-  CHECK(-limit < offset && offset <= 0);
-  CHECK(offset < 0 || from_the_end);
-  if (from_the_end) {
-    CHECK(from_message_id == MessageId());
-  } else {
-    CHECK(!from_message_id.is_scheduled());
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  MessageId last_received_message_id = messages.empty() ? MessageId() : MessageId::get_message_id(messages[0], false);
-  if (old_last_new_message_id < d->last_new_message_id && (from_the_end || old_last_new_message_id < from_message_id) &&
-      last_received_message_id < d->last_new_message_id) {
-    // new server messages were added to the dialog since the request was sent, but weren't received
-    // they should have been received, so we must repeat the request to get them
-    get_history_impl(d, from_message_id, offset, limit, false, false, std::move(promise), "on_get_history");
-    return;
-  }
-
-  // the server can return less messages than requested if some of messages are deleted during request
-  // but if it happens, it is likely that there are no more messages on the server
-  bool have_full_history = from_the_end && narrow_cast<int32>(messages.size()) < limit && messages.size() <= 1;
-
-  if (messages.empty()) {
-    if (have_full_history) {
-      d->have_full_history = true;
-      d->have_full_history_source = 1;
-      on_dialog_updated(dialog_id, "set have_full_history");
-    }
-
-    if (from_the_end && d->have_full_history && d->ordered_messages.empty()) {
-      if (!d->last_database_message_id.is_valid()) {
-        set_dialog_is_empty(d, "on_get_history empty");
-      } else {
-        LOG(INFO) << "Skip marking " << dialog_id << " as empty, because it probably has messages from "
-                  << d->first_database_message_id << " to " << d->last_database_message_id << " in the database";
-      }
-    }
-
-    // be aware that in some cases an empty answer may be returned, because of the race of getHistory and deleteMessages
-    // and not because there are no more messages
-    promise.set_value(Unit());
-    return;
-  }
-
-  if (messages.size() > 1) {
-    // check that messages are received in decreasing message_id order
-    MessageId cur_message_id = MessageId::max();
-    for (const auto &message : messages) {
-      MessageId message_id = MessageId::get_message_id(message, false);
-      if (message_id >= cur_message_id) {
-        string error = PSTRING() << "Receive messages in the wrong order in history of " << dialog_id << " from "
-                                 << from_message_id << " with offset " << offset << ", limit " << limit
-                                 << ", from_the_end = " << from_the_end << ": ";
-        for (const auto &debug_message : messages) {
-          error += to_string(debug_message);
-        }
-        LOG(ERROR) << error;
-        promise.set_value(Unit());
-        return;
-      }
-      cur_message_id = message_id;
-    }
-  }
-
-  // be aware that returned messages are guaranteed to be consecutive messages, but if !from_the_end they
-  // may be older (if some messages were deleted) or newer (if some messages were added) than an expected answer
-  // be aware that any subset of the returned messages may be already deleted and returned as MessageEmpty
-  bool is_channel_message = dialog_id.get_type() == DialogType::Channel;
-  MessageId first_added_message_id;
-  MessageId last_added_message_id;
-  bool have_next = false;
-
-  if (narrow_cast<int32>(messages.size()) < limit + offset && messages.size() <= 1) {
-    MessageId first_received_message_id = MessageId::get_message_id(messages.back(), false);
-    if (first_received_message_id >= from_message_id && d->first_database_message_id.is_valid() &&
-        first_received_message_id >= d->first_database_message_id) {
-      // it is likely that there are no more history messages on the server
-      have_full_history = true;
-    }
-  }
-
-  if (d->last_new_message_id.is_valid()) {
-    // remove too new messages from response
-    while (!messages.empty()) {
-      if (DialogId::get_message_dialog_id(messages[0]) == dialog_id &&
-          MessageId::get_message_id(messages[0], false) <= d->last_new_message_id) {
-        // the message is old enough
-        break;
-      }
-
-      LOG(INFO) << "Ignore too new " << MessageId::get_message_id(messages[0], false);
-      messages.erase(messages.begin());
-      if (messages.empty()) {
-        // received no suitable messages; try again
-        return promise.set_value(Unit());
-      } else {
-        last_received_message_id = MessageId::get_message_id(messages[0], false);
-      }
-    }
-  }
-
-  bool prev_have_full_history = d->have_full_history;
-  MessageId prev_last_new_message_id = d->last_new_message_id;
-  MessageId prev_first_database_message_id = d->first_database_message_id;
-  MessageId prev_last_database_message_id = d->last_database_message_id;
-  MessageId prev_last_message_id = d->last_message_id;
-  if (from_the_end) {
-    // delete all server messages with ID > last_received_message_id
-    // there were no new messages received after the getHistory request was sent, so they are already deleted message
-    if (last_received_message_id.is_valid() && delete_newer_server_messages_at_the_end(d, last_received_message_id)) {
-      have_next = true;
-    }
-  }
-
-  for (auto &message : messages) {
-    auto expected_message_id = MessageId::get_message_id(message, false);
-    if (!have_next && from_the_end && expected_message_id < d->last_message_id) {
-      // last message in the dialog should be attached to the next message if there is some
-      have_next = true;
-    }
-
-    auto message_dialog_id = DialogId::get_message_dialog_id(message);
-    if (message_dialog_id != dialog_id) {
-      LOG(ERROR) << "Receive " << expected_message_id << " in wrong " << message_dialog_id << " instead of "
-                 << dialog_id << ": " << oneline(to_string(message));
-      continue;
-    }
-
-    auto message_full_id = on_get_message(std::move(message), false, is_channel_message, false, "get history");
-    auto message_id = message_full_id.get_message_id();
-    if (message_id.is_valid()) {
-      CHECK(message_id == expected_message_id);
-      if (have_next) {
-        d->ordered_messages.attach_message_to_next(message_id, "on_get_history");
-      }
-      if (!last_added_message_id.is_valid()) {
-        last_added_message_id = message_id;
-      }
-
-      if (!have_next) {
-        have_next = true;
-      } else if (first_added_message_id.is_valid()) {
-        d->ordered_messages.attach_message_to_previous(first_added_message_id, "on_get_history");
-      }
-      first_added_message_id = message_id;
-    }
-  }
-
-  if (from_the_end && last_added_message_id.is_valid() && last_added_message_id != last_received_message_id) {
-    CHECK(last_added_message_id < last_received_message_id);
-    delete_newer_server_messages_at_the_end(d, last_added_message_id);
-  }
-
-  if (have_full_history) {
-    d->have_full_history = true;
-    d->have_full_history_source = 2;
-    on_dialog_updated(dialog_id, "set have_full_history 2");
-  }
-
-  if (from_the_end && !d->last_new_message_id.is_valid()) {
-    set_dialog_last_new_message_id(
-        d, last_added_message_id.is_valid() ? last_added_message_id : last_received_message_id, "on_get_history");
-  }
-  bool intersect_last_database_message_ids =
-      last_added_message_id >= d->first_database_message_id && d->last_database_message_id >= first_added_message_id;
-  bool need_update_database_message_ids =
-      last_added_message_id.is_valid() && (from_the_end || intersect_last_database_message_ids);
-  if (from_the_end && last_added_message_id.is_valid() && last_added_message_id > d->last_message_id) {
-    CHECK(d->last_new_message_id.is_valid());
-    set_dialog_last_message_id(d, last_added_message_id, "on_get_history");
-    send_update_chat_last_message(d, "on_get_history");
-  }
-
-  if (need_update_database_message_ids) {
-    if (from_the_end && !intersect_last_database_message_ids && d->last_database_message_id.is_valid()) {
-      if (d->last_database_message_id < first_added_message_id || last_added_message_id == d->last_message_id) {
-        set_dialog_first_database_message_id(d, MessageId(), "on_get_history 1");
-        set_dialog_last_database_message_id(d, MessageId(), "on_get_history 1");
-      } else {
-        auto min_message_id = td::min(d->first_database_message_id, d->last_message_id);
-        LOG_CHECK(last_added_message_id < min_message_id)
-            << need_update_database_message_ids << ' ' << first_added_message_id << ' ' << last_added_message_id << ' '
-            << d->first_database_message_id << ' ' << d->last_database_message_id << ' ' << d->last_new_message_id
-            << ' ' << d->last_message_id << ' ' << prev_first_database_message_id << ' '
-            << prev_last_database_message_id << ' ' << prev_last_new_message_id << ' ' << prev_last_message_id;
-        if (min_message_id <= last_added_message_id.get_next_message_id(MessageType::Server)) {
-          // connect local messages with last received server message
-          set_dialog_first_database_message_id(d, last_added_message_id, "on_get_history 2");
-        } else {
-          LOG(WARNING) << "Have last " << d->last_message_id << " and first database " << d->first_database_message_id
-                       << " in " << dialog_id << ", but received history from the end only up to "
-                       << last_added_message_id;
-          // can't connect messages, because there can be unknown server messages after last_added_message_id
-        }
-      }
-    }
-    if (!d->last_database_message_id.is_valid()) {
-      CHECK(d->last_message_id.is_valid());
-      auto it = d->ordered_messages.get_const_iterator(d->last_message_id);
-      MessageId new_first_database_message_id;
-      while (*it != nullptr) {
-        auto message_id = (*it)->get_message_id();
-        if (message_id.is_server() || message_id.is_local()) {
-          if (!d->last_database_message_id.is_valid()) {
-            set_dialog_last_database_message_id(d, message_id, "on_get_history");
-          }
-          new_first_database_message_id = message_id;
-          try_restore_dialog_reply_markup(d, get_message(d, message_id));
-        }
-        --it;
-      }
-      if (new_first_database_message_id.is_valid()) {
-        set_dialog_first_database_message_id(d, new_first_database_message_id, "on_get_history");
-      }
-    } else {
-      LOG_CHECK(d->last_new_message_id.is_valid())
-          << dialog_id << " " << from_the_end << " " << d->first_database_message_id << " "
-          << d->last_database_message_id << " " << first_added_message_id << " " << last_added_message_id << " "
-          << d->last_message_id << " " << d->last_new_message_id << " " << d->have_full_history << " "
-          << prev_last_new_message_id << " " << prev_first_database_message_id << " " << prev_last_database_message_id
-          << " " << prev_last_message_id << " " << prev_have_full_history << " " << d->debug_last_new_message_id << " "
-          << d->debug_first_database_message_id << " " << d->debug_last_database_message_id << " " << from_message_id
-          << " " << offset << " " << limit << " " << messages.size() << " " << last_received_message_id << " "
-          << d->debug_set_dialog_last_database_message_id;
-      CHECK(d->first_database_message_id.is_valid());
-      {
-        auto it = d->ordered_messages.get_const_iterator(d->first_database_message_id);
-        if (*it != nullptr && ((*it)->get_message_id() == d->first_database_message_id || (*it)->have_next())) {
-          MessageId new_first_database_message_id = d->first_database_message_id;
-          while (*it != nullptr) {
-            auto message_id = (*it)->get_message_id();
-            if ((message_id.is_server() || message_id.is_local()) && message_id < new_first_database_message_id) {
-              new_first_database_message_id = message_id;
-              try_restore_dialog_reply_markup(d, get_message(d, message_id));
-            }
-            --it;
-          }
-          if (new_first_database_message_id != d->first_database_message_id) {
-            set_dialog_first_database_message_id(d, new_first_database_message_id, "on_get_history 2");
-          }
-        }
-      }
-      {
-        auto it = d->ordered_messages.get_const_iterator(d->last_database_message_id);
-        if (*it != nullptr && ((*it)->get_message_id() == d->last_database_message_id || (*it)->have_next())) {
-          MessageId new_last_database_message_id = d->last_database_message_id;
-          while (*it != nullptr) {
-            auto message_id = (*it)->get_message_id();
-            if ((message_id.is_server() || message_id.is_local()) && message_id > new_last_database_message_id) {
-              new_last_database_message_id = message_id;
-            }
-            ++it;
-          }
-          if (new_last_database_message_id != d->last_database_message_id) {
-            set_dialog_last_database_message_id(d, new_last_database_message_id, "on_get_history 2");
-          }
-        }
-      }
-    }
-    LOG_CHECK(d->first_database_message_id.is_valid())
-        << dialog_id << " " << from_the_end << " " << d->first_database_message_id << " " << d->last_database_message_id
-        << " " << first_added_message_id << " " << last_added_message_id << " " << d->last_message_id << " "
-        << d->last_new_message_id << " " << d->have_full_history << " " << prev_last_new_message_id << " "
-        << prev_first_database_message_id << " " << prev_last_database_message_id << " " << prev_last_message_id << " "
-        << prev_have_full_history << " " << d->debug_last_new_message_id << " " << d->debug_first_database_message_id
-        << " " << d->debug_last_database_message_id << " " << from_message_id << " " << offset << " " << limit << " "
-        << messages.size() << " " << last_received_message_id << " " << d->debug_set_dialog_last_database_message_id;
-    CHECK(d->last_database_message_id.is_valid());
-
-    for (auto &first_message_id : d->first_database_message_id_by_index) {
-      if (first_added_message_id < first_message_id && first_message_id <= last_added_message_id) {
-        first_message_id = first_added_message_id;
-      }
-    }
-  }
-  promise.set_value(Unit());
-}
-
-void MessagesManager::on_get_message_search_result_calendar(
-    DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, MessageId from_message_id,
-    MessageSearchFilter filter, int32 total_count, vector<tl_object_ptr<telegram_api::Message>> &&messages,
-    vector<tl_object_ptr<telegram_api::searchResultsCalendarPeriod>> &&periods,
-    Promise<td_api::object_ptr<td_api::messageCalendar>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  int32 received_message_count = 0;
-  for (auto &message : messages) {
-    auto new_message_full_id = on_get_message(std::move(message), false, dialog_id.get_type() == DialogType::Channel,
-                                              false, "on_get_message_search_result_calendar");
-    if (new_message_full_id == MessageFullId()) {
-      total_count--;
-      continue;
-    }
-
-    if (new_message_full_id.get_dialog_id() != dialog_id) {
-      LOG(ERROR) << "Receive " << new_message_full_id << " instead of a message in " << dialog_id;
-      total_count--;
-      continue;
-    }
-
-    received_message_count++;
-  }
-  if (total_count < received_message_count) {
-    LOG(ERROR) << "Receive " << received_message_count << " valid messages out of " << total_count << " in "
-               << messages.size() << " messages";
-    total_count = received_message_count;
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (!saved_messages_topic_id.is_valid()) {
-    auto &old_message_count = d->message_count_by_index[message_search_filter_index(filter)];
-    if (old_message_count != total_count) {
-      old_message_count = total_count;
-      on_dialog_updated(dialog_id, "on_get_message_search_result_calendar");
-    }
-  }
-
-  vector<td_api::object_ptr<td_api::messageCalendarDay>> days;
-  for (auto &period : periods) {
-    auto message_id = MessageId(ServerMessageId(period->min_msg_id_));
-    const auto *m = get_message(d, message_id);
-    if (m == nullptr) {
-      LOG(ERROR) << "Failed to find " << message_id;
-      continue;
-    }
-    if (period->count_ <= 0) {
-      LOG(ERROR) << "Receive " << to_string(period);
-      continue;
-    }
-    days.push_back(td_api::make_object<td_api::messageCalendarDay>(
-        period->count_, get_message_object(dialog_id, m, "on_get_message_search_result_calendar")));
-  }
-  promise.set_value(td_api::make_object<td_api::messageCalendar>(total_count, std::move(days)));
-}
-
-void MessagesManager::on_get_call_messages(MessageId from_message_id, int32 limit, MessageSearchFilter filter,
-                                           int32 total_count,
-                                           vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-                                           Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Receive " << messages.size() << " found call messages";
-  MessageId first_added_message_id;
-  if (messages.empty()) {
-    // messages may be empty because there are no more messages or they can't be found due to global limit
-    // anyway pretend that there are no more messages
-    first_added_message_id = MessageId::min();
-  }
-
-  FoundMessages found_messages;
-  auto &result = found_messages.message_full_ids;
-  int32 added_message_count = 0;
-  MessageId next_offset_message_id;
-  for (auto &message : messages) {
-    auto message_id = MessageId::get_message_id(message, false);
-    if (message_id.is_valid() && (!next_offset_message_id.is_valid() || message_id < next_offset_message_id)) {
-      next_offset_message_id = message_id;
-    }
-    auto new_message_full_id = on_get_message(std::move(message), false, false, false, "on_get_call_messages");
-    if (new_message_full_id == MessageFullId()) {
-      continue;
-    }
-
-    result.push_back(new_message_full_id);
-    added_message_count++;
-
-    CHECK(message_id == new_message_full_id.get_message_id());
-    CHECK(message_id.is_valid());
-    if (message_id < first_added_message_id || !first_added_message_id.is_valid()) {
-      first_added_message_id = message_id;
-    }
-  }
-  if (total_count < added_message_count) {
-    LOG(ERROR) << "Receive total_count = " << total_count << ", but added " << added_message_count
-               << " messages out of " << messages.size();
-    total_count = added_message_count;
-  }
-  if (G()->use_message_database()) {
-    bool update_state = false;
-
-    auto &old_message_count = calls_db_state_.message_count_by_index[call_message_search_filter_index(filter)];
-    if (old_message_count != total_count) {
-      LOG(INFO) << "Update calls database message count to " << total_count;
-      old_message_count = total_count;
-      update_state = true;
-    }
-
-    auto &old_first_db_message_id =
-        calls_db_state_.first_calls_database_message_id_by_index[call_message_search_filter_index(filter)];
-    bool from_the_end = !from_message_id.is_valid() || from_message_id >= MessageId::max();
-    LOG(INFO) << "Have from_the_end = " << from_the_end << ", old_first_db_message_id = " << old_first_db_message_id
-              << ", first_added_message_id = " << first_added_message_id << ", from_message_id = " << from_message_id;
-    if ((from_the_end || (old_first_db_message_id.is_valid() && old_first_db_message_id <= from_message_id)) &&
-        (!old_first_db_message_id.is_valid() || first_added_message_id < old_first_db_message_id)) {
-      LOG(INFO) << "Update calls database first message to " << first_added_message_id;
-      old_first_db_message_id = first_added_message_id;
-      update_state = true;
-    }
-    if (update_state) {
-      save_calls_db_state();
-    }
-  }
-  found_messages.total_count = total_count;
-  if (next_offset_message_id.is_valid()) {
-    found_messages.next_offset = PSTRING() << next_offset_message_id.get_server_message_id().get();
-  }
-  promise.set_value(get_found_messages_object(found_messages, "on_get_call_messages"));
-}
-
-void MessagesManager::on_get_dialog_messages_search_result(
-    DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, const string &query, DialogId sender_dialog_id,
-    MessageId from_message_id, int32 offset, int32 limit, MessageSearchFilter filter, MessageId top_thread_message_id,
-    const ReactionType &tag, int64 random_id, int32 total_count,
-    vector<tl_object_ptr<telegram_api::Message>> &&messages, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Receive " << messages.size() << " found messages in " << dialog_id;
-
-  auto it = found_dialog_messages_.find(random_id);
-  CHECK(it != found_dialog_messages_.end());
-
-  auto &result = it->second.message_ids;
-  CHECK(result.empty());
-  MessageId first_added_message_id;
-  if (messages.empty()) {
-    // messages may be empty because there are no more messages or they can't be found due to global limit
-    // anyway pretend that there are no more messages
-    first_added_message_id = MessageId::min();
-  }
-  bool can_be_in_different_dialog =
-      top_thread_message_id.is_valid() && td_->dialog_manager_->is_broadcast_channel(dialog_id);
-  DialogId real_dialog_id;
-  MessageId next_from_message_id;
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  for (auto &message : messages) {
-    auto message_id = MessageId::get_message_id(message, false);
-    if (message_id.is_valid() && (!next_from_message_id.is_valid() || message_id < next_from_message_id)) {
-      next_from_message_id = message_id;
-    }
-    auto new_message_full_id = on_get_message(std::move(message), false, dialog_id.get_type() == DialogType::Channel,
-                                              false, "on_get_dialog_messages_search_result");
-    if (new_message_full_id == MessageFullId()) {
-      total_count--;
-      continue;
-    }
-
-    if (new_message_full_id.get_dialog_id() != dialog_id) {
-      if (!can_be_in_different_dialog) {
-        LOG(ERROR) << "Receive " << new_message_full_id << " instead of a message in " << dialog_id;
-        total_count--;
-        continue;
-      } else {
-        if (!real_dialog_id.is_valid()) {
-          real_dialog_id = new_message_full_id.get_dialog_id();
-          found_dialog_messages_dialog_id_[random_id] = real_dialog_id;
-        } else if (new_message_full_id.get_dialog_id() != real_dialog_id) {
-          LOG(ERROR) << "Receive " << new_message_full_id << " instead of a message in " << real_dialog_id << " or "
-                     << dialog_id;
-          total_count--;
-          continue;
-        }
-      }
-    }
-
-    CHECK(message_id == new_message_full_id.get_message_id());
-    if (filter == MessageSearchFilter::UnreadMention && message_id <= d->last_read_all_mentions_message_id &&
-        !real_dialog_id.is_valid()) {
-      total_count--;
-      continue;
-    }
-
-    if (filter != MessageSearchFilter::Empty) {
-      const Message *m = get_message(new_message_full_id);
-      CHECK(m != nullptr);
-      auto index_mask = get_message_index_mask(new_message_full_id.get_dialog_id(), m);
-      if ((message_search_filter_index_mask(filter) & index_mask) == 0) {
-        LOG(INFO) << "Skip " << new_message_full_id << " of unexpected type";
-        total_count--;
-        continue;
-      }
-    }
-
-    // TODO check that messages are returned in decreasing message_id order
-    if (message_id < first_added_message_id || !first_added_message_id.is_valid()) {
-      first_added_message_id = message_id;
-    }
-    result.push_back(message_id);
-  }
-  if (total_count < static_cast<int32>(result.size())) {
-    LOG(ERROR) << "Receive " << result.size() << " valid messages out of " << total_count << " in " << messages.size()
-               << " messages";
-    total_count = static_cast<int32>(result.size());
-  }
-  if (query.empty() && !sender_dialog_id.is_valid() && filter != MessageSearchFilter::Empty &&
-      !top_thread_message_id.is_valid() && !saved_messages_topic_id.is_valid() && tag.is_empty()) {
-    bool from_the_end = !from_message_id.is_valid() ||
-                        (d->last_message_id != MessageId() && from_message_id > d->last_message_id) ||
-                        from_message_id >= MessageId::max();
-    bool update_dialog = false;
-
-    auto &old_message_count = d->message_count_by_index[message_search_filter_index(filter)];
-    if (old_message_count != total_count) {
-      old_message_count = total_count;
-      if (filter == MessageSearchFilter::UnreadMention) {
-        d->unread_mention_count = old_message_count;
-        update_dialog_mention_notification_count(d);
-        send_update_chat_unread_mention_count(d);
-      }
-      if (filter == MessageSearchFilter::UnreadReaction) {
-        d->unread_reaction_count = old_message_count;
-        // update_dialog_mention_notification_count(d);
-        send_update_chat_unread_reaction_count(d, "on_get_dialog_messages_search_result");
-      }
-      update_dialog = true;
-    }
-
-    auto &old_first_database_message_id = d->first_database_message_id_by_index[message_search_filter_index(filter)];
-    if ((from_the_end ||
-         (old_first_database_message_id.is_valid() && old_first_database_message_id <= from_message_id)) &&
-        (!old_first_database_message_id.is_valid() || first_added_message_id < old_first_database_message_id)) {
-      old_first_database_message_id = first_added_message_id;
-      update_dialog = true;
-    }
-    if (update_dialog) {
-      on_dialog_updated(dialog_id, "search results");
-    }
-
-    if (from_the_end && filter == MessageSearchFilter::Pinned) {
-      set_dialog_last_pinned_message_id(d, result.empty() ? MessageId() : result[0]);
-    }
-  }
-
-  it->second.total_count = total_count;
-  it->second.next_from_message_id = next_from_message_id;
-  promise.set_value(Unit());
-}
-
-void MessagesManager::on_failed_dialog_messages_search(DialogId dialog_id, int64 random_id) {
-  auto it = found_dialog_messages_.find(random_id);
-  CHECK(it != found_dialog_messages_.end());
-  found_dialog_messages_.erase(it);
-}
-
-void MessagesManager::on_get_dialog_message_count(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                                  MessageSearchFilter filter, int32 total_count,
-                                                  Promise<int32> &&promise) {
-  LOG(INFO) << "Receive " << total_count << " message count in " << dialog_id << " with filter " << filter;
-  if (total_count < 0) {
-    LOG(ERROR) << "Receive total message count = " << total_count << " in " << dialog_id << " with "
-               << saved_messages_topic_id << " and filter " << filter;
-    total_count = 0;
-  }
-
-  if (saved_messages_topic_id.is_valid()) {
-    return promise.set_value(std::move(total_count));
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  CHECK(filter != MessageSearchFilter::Empty);
-  CHECK(filter != MessageSearchFilter::UnreadMention);
-  CHECK(filter != MessageSearchFilter::UnreadReaction);
-  CHECK(filter != MessageSearchFilter::FailedToSend);
-
-  auto &old_message_count = d->message_count_by_index[message_search_filter_index(filter)];
-  if (old_message_count != total_count) {
-    old_message_count = total_count;
-    on_dialog_updated(dialog_id, "on_get_dialog_message_count");
-  }
-
-  if (total_count == 0) {
-    auto &old_first_database_message_id = d->first_database_message_id_by_index[message_search_filter_index(filter)];
-    if (old_first_database_message_id != MessageId::min()) {
-      old_first_database_message_id = MessageId::min();
-      on_dialog_updated(dialog_id, "on_get_dialog_message_count");
-    }
-    if (filter == MessageSearchFilter::Pinned) {
-      set_dialog_last_pinned_message_id(d, MessageId());
-    }
-  }
-  promise.set_value(std::move(total_count));
-}
-
-void MessagesManager::on_get_scheduled_server_messages(DialogId dialog_id, uint32 generation,
-                                                       vector<tl_object_ptr<telegram_api::Message>> &&messages,
-                                                       bool is_not_modified) {
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (generation < d->scheduled_messages_sync_generation) {
-    LOG(INFO) << "Ignore scheduled messages with old generation " << generation << " instead of "
-              << d->scheduled_messages_sync_generation << " in " << dialog_id;
-    return;
-  }
-  d->scheduled_messages_sync_generation = generation;
-
-  if (is_not_modified) {
-    LOG(INFO) << "Scheduled messages are not modified in " << dialog_id;
-    return;
-  }
-
-  vector<MessageId> old_message_ids;
-  if (d->scheduled_messages != nullptr) {
-    for (const auto &it : d->scheduled_messages->scheduled_messages_) {
-      old_message_ids.push_back(it.first);
-    };
-  }
-  FlatHashMap<ScheduledServerMessageId, MessageId, ScheduledServerMessageIdHash> old_server_message_ids;
-  for (auto &message_id : old_message_ids) {
-    if (message_id.is_scheduled_server()) {
-      old_server_message_ids[message_id.get_scheduled_server_message_id()] = message_id;
-    }
-  }
-
-  bool is_channel_message = dialog_id.get_type() == DialogType::Channel;
-  bool has_scheduled_server_messages = false;
-  for (auto &message : messages) {
-    auto message_dialog_id = DialogId::get_message_dialog_id(message);
-    if (message_dialog_id != dialog_id) {
-      // server can send messageEmpty for deleted scheduled messages
-      auto message_id = MessageId::get_message_id(message, true);
-      if (message_id.is_valid() || message_dialog_id.is_valid()) {
-        LOG(ERROR) << "Receive " << message_id << " in wrong " << message_dialog_id << " instead of " << dialog_id
-                   << ": " << oneline(to_string(message));
-      }
-      continue;
-    }
-
-    auto message_full_id = on_get_message(std::move(message), d->sent_scheduled_messages, is_channel_message, true,
-                                          "on_get_scheduled_server_messages");
-    auto message_id = message_full_id.get_message_id();
-    if (message_id.is_valid_scheduled()) {
-      CHECK(message_id.is_scheduled_server());
-      old_server_message_ids.erase(message_id.get_scheduled_server_message_id());
-      has_scheduled_server_messages = true;
-    }
-  }
-  on_update_dialog_has_scheduled_server_messages(dialog_id, has_scheduled_server_messages);
-
-  for (const auto &it : old_server_message_ids) {
-    auto message_id = it.second;
-    auto message = do_delete_scheduled_message(d, message_id, true, "on_get_scheduled_server_messages");
-    CHECK(message != nullptr);
-    send_update_delete_messages(dialog_id, {message->message_id.get()}, true);
-  }
-
-  send_update_chat_has_scheduled_messages(d, false);
-}
-
-void MessagesManager::delete_messages_from_updates(const vector<MessageId> &message_ids, bool is_permanent) {
-  FlatHashMap<DialogId, vector<int64>, DialogIdHash> deleted_message_ids;
-  FlatHashMap<DialogId, bool, DialogIdHash> need_update_dialog_pos;
-  vector<unique_ptr<Message>> deleted_messages;
-  for (auto message_id : message_ids) {
-    if (!message_id.is_valid() || !message_id.is_server()) {
-      LOG(ERROR) << "Incoming update tries to delete " << message_id;
-      continue;
-    }
-
-    Dialog *d = get_dialog_by_message_id(message_id);
-    if (d != nullptr) {
-      auto message = delete_message(d, message_id, is_permanent, &need_update_dialog_pos[d->dialog_id],
-                                    "delete_messages_from_updates");
-      CHECK(message != nullptr);
-      LOG_CHECK(message->message_id == message_id) << message_id << " " << message->message_id << " " << d->dialog_id;
-      deleted_message_ids[d->dialog_id].push_back(message->message_id.get());
-      deleted_messages.push_back(std::move(message));
-    }
-    if (last_clear_history_message_id_to_dialog_id_.count(message_id)) {
-      d = get_dialog(last_clear_history_message_id_to_dialog_id_[message_id]);
-      CHECK(d != nullptr);
-      auto message = delete_message(d, message_id, is_permanent, &need_update_dialog_pos[d->dialog_id],
-                                    "delete_messages_from_updates");
-      CHECK(message == nullptr);
-    }
-  }
-  if (deleted_messages.size() >= MIN_DELETED_ASYNCHRONOUSLY_MESSAGES) {
-    Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), deleted_messages);
-  }
-  for (auto &it : need_update_dialog_pos) {
-    if (it.second) {
-      auto dialog_id = it.first;
-      Dialog *d = get_dialog(dialog_id);
-      CHECK(d != nullptr);
-      send_update_chat_last_message(d, "delete_messages_from_updates");
-    }
-  }
-  for (auto &it : deleted_message_ids) {
-    auto dialog_id = it.first;
-    send_update_delete_messages(dialog_id, std::move(it.second), is_permanent);
-  }
-}
-
-void MessagesManager::delete_dialog_messages(DialogId dialog_id, const vector<MessageId> &message_ids,
-                                             bool force_update_for_not_found_messages, const char *source) {
-  Dialog *d = get_dialog_force(dialog_id, "delete_dialog_messages");
-  if (d == nullptr) {
-    LOG(INFO) << "Ignore deleteChannelMessages for unknown " << dialog_id << " from " << source;
-    CHECK(dialog_id.get_type() == DialogType::Channel);
-    return;
-  }
-
-  delete_dialog_messages(d, message_ids, force_update_for_not_found_messages, source);
-}
-
-void MessagesManager::delete_dialog_messages(Dialog *d, const vector<MessageId> &message_ids,
-                                             bool force_update_for_not_found_messages, const char *source) {
-  vector<unique_ptr<Message>> deleted_messages;
-  vector<int64> deleted_message_ids;
-  bool need_update_dialog_pos = false;
-  bool need_update_chat_has_scheduled_messages = false;
-  for (auto message_id : message_ids) {
-    CHECK(message_id.is_valid() || message_id.is_valid_scheduled());
-
-    bool force_update = force_update_for_not_found_messages && !is_deleted_message(d, message_id);
-    auto message = delete_message(d, message_id, true, &need_update_dialog_pos, source);
-    if (message == nullptr) {
-      if (force_update) {
-        deleted_message_ids.push_back(message_id.get());
-      }
-    } else {
-      need_update_chat_has_scheduled_messages |= message->message_id.is_scheduled();
-      deleted_message_ids.push_back(message->message_id.get());
-      deleted_messages.push_back(std::move(message));
-    }
-  }
-  if (deleted_messages.size() >= MIN_DELETED_ASYNCHRONOUSLY_MESSAGES) {
-    Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), deleted_messages);
-  }
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, source);
-  }
-  send_update_delete_messages(d->dialog_id, std::move(deleted_message_ids), true);
-
-  if (need_update_chat_has_scheduled_messages) {
-    send_update_chat_has_scheduled_messages(d, true);
-  }
-}
-
-void MessagesManager::update_dialog_pinned_messages_from_updates(DialogId dialog_id,
-                                                                 const vector<MessageId> &message_ids, bool is_pin) {
-  Dialog *d = get_dialog_force(dialog_id, "update_dialog_pinned_messages_from_updates");
-  if (d == nullptr) {
-    LOG(INFO) << "Ignore updatePinnedMessages for unknown " << dialog_id;
-    return;
-  }
-
-  for (auto message_id : message_ids) {
-    if (!message_id.is_valid() || (!message_id.is_server() && dialog_id.get_type() != DialogType::SecretChat)) {
-      LOG(ERROR) << "Incoming update tries to pin/unpin " << message_id << " in " << dialog_id;
-      continue;
-    }
-
-    Message *m = get_message_force(d, message_id, "update_dialog_pinned_messages_from_updates");
-    if (m != nullptr && update_message_is_pinned(d, m, is_pin, "update_dialog_pinned_messages_from_updates")) {
-      on_message_changed(d, m, true, "update_dialog_pinned_messages_from_updates");
-    }
-  }
-}
-
-bool MessagesManager::update_message_is_pinned(Dialog *d, Message *m, bool is_pinned, const char *source) {
-  CHECK(m != nullptr);
-  CHECK(!m->message_id.is_scheduled());
-  if (m->is_pinned == is_pinned) {
-    return false;
-  }
-
-  LOG(INFO) << "Update message is_pinned of " << m->message_id << " in " << d->dialog_id << " to " << is_pinned
-            << " from " << source;
-  auto old_index_mask = get_message_index_mask(d->dialog_id, m);
-  m->is_pinned = is_pinned;
-  auto new_index_mask = get_message_index_mask(d->dialog_id, m);
-  update_message_count_by_index(d, -1, old_index_mask & ~new_index_mask);
-  update_message_count_by_index(d, +1, new_index_mask & ~old_index_mask);
-
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageIsPinned>(
-                   get_chat_id_object(d->dialog_id, "updateMessageIsPinned"), m->message_id.get(), is_pinned));
-  if (is_pinned) {
-    if (d->is_last_pinned_message_id_inited && m->message_id > d->last_pinned_message_id) {
-      set_dialog_last_pinned_message_id(d, m->message_id);
-    }
-  } else {
-    if (d->is_last_pinned_message_id_inited && m->message_id == d->last_pinned_message_id) {
-      if (!td_->auth_manager_->is_bot() &&
-          d->message_count_by_index[message_search_filter_index(MessageSearchFilter::Pinned)] == 0) {
-        set_dialog_last_pinned_message_id(d, MessageId());
-      } else {
-        drop_dialog_last_pinned_message_id(d);
-      }
-    }
-  }
-  return true;
-}
-
-string MessagesManager::get_message_search_text(const Message *m) const {
-  if (m->is_content_secret) {
-    return string();
-  }
-  return get_message_content_search_text(td_, m->content.get());
-}
-
-bool MessagesManager::can_forward_message(DialogId from_dialog_id, const Message *m) {
-  if (m == nullptr) {
-    return false;
-  }
-  if (!m->ttl.is_empty()) {
-    return false;
-  }
-  if (m->message_id.is_scheduled()) {
-    return false;
-  }
-  switch (from_dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      // ok
-      break;
-    case DialogType::SecretChat:
-      return false;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-
-  return can_forward_message_content(m->content.get());
-}
-
-bool MessagesManager::can_save_message(DialogId dialog_id, const Message *m) const {
-  if (m == nullptr || m->noforwards || m->is_content_secret) {
-    return false;
-  }
-  return !td_->dialog_manager_->get_dialog_has_protected_content(dialog_id);
-}
-
-bool MessagesManager::can_share_message_in_story(MessageFullId message_full_id) {
-  return can_share_message_in_story(message_full_id.get_dialog_id(),
-                                    get_message_force(message_full_id, "can_share_message_in_story"));
-}
-
-bool MessagesManager::can_share_message_in_story(DialogId dialog_id, const Message *m) const {
-  return dialog_id.get_type() == DialogType::Channel && m != nullptr && m->message_id.is_valid() &&
-         m->message_id.is_server();
-}
-
-bool MessagesManager::can_get_message_statistics(MessageFullId message_full_id) {
-  return can_get_message_statistics(message_full_id.get_dialog_id(),
-                                    get_message_force(message_full_id, "can_get_message_statistics"));
-}
-
-bool MessagesManager::can_get_message_statistics(DialogId dialog_id, const Message *m) const {
-  if (td_->auth_manager_->is_bot() || dialog_id.get_type() != DialogType::Channel) {
-    return false;
-  }
-  if (m == nullptr || m->message_id.is_scheduled() || !m->message_id.is_server() || m->view_count == 0 ||
-      m->had_forward_info || (m->forward_info != nullptr && m->forward_info->get_origin().is_channel_post())) {
-    return false;
-  }
-  return td_->chat_manager_->can_get_channel_message_statistics(dialog_id.get_channel_id());
-}
-
-bool MessagesManager::can_delete_channel_message(const DialogParticipantStatus &status, const Message *m, bool is_bot) {
-  if (m == nullptr) {
-    return true;
-  }
-  if (m->message_id.is_local() || m->message_id.is_yet_unsent()) {
-    return true;
-  }
-  if (m->message_id.is_scheduled()) {
-    if (m->is_channel_post) {
-      return status.can_post_messages();
-    }
-    return true;
-  }
-
-  if (is_bot && G()->unix_time() >= m->date + 2 * 86400) {
-    // bots can't delete messages older than 2 days
-    return false;
-  }
-
-  CHECK(m->message_id.is_server());
-  if (m->message_id.get_server_message_id().get() == 1) {
-    return false;
-  }
-  auto content_type = m->content->get_type();
-  if (content_type == MessageContentType::ChannelMigrateFrom || content_type == MessageContentType::ChannelCreate ||
-      content_type == MessageContentType::TopicCreate) {
-    return false;
-  }
-
-  if (status.can_delete_messages()) {
-    return true;
-  }
-
-  if (!m->is_outgoing) {
-    return false;
-  }
-
-  if (m->is_channel_post || is_service_message_content(content_type)) {
-    return status.can_post_messages();
-  }
-
-  return true;
-}
-
-bool MessagesManager::can_delete_message(DialogId dialog_id, const Message *m) const {
-  if (m == nullptr) {
-    return true;
-  }
-  if (m->message_id.is_local() || m->message_id.is_yet_unsent()) {
-    return true;
-  }
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return true;
-    case DialogType::Chat:
-      return true;
-    case DialogType::Channel: {
-      auto dialog_status = td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id());
-      return can_delete_channel_message(dialog_status, m, td_->auth_manager_->is_bot());
-    }
-    case DialogType::SecretChat:
-      return true;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool MessagesManager::can_revoke_message(DialogId dialog_id, const Message *m) const {
-  if (m == nullptr) {
-    return true;
-  }
-  if (m->message_id.is_local()) {
-    return false;
-  }
-  if (dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    return false;
-  }
-  if (m->message_id.is_scheduled()) {
-    return false;
-  }
-  if (m->message_id.is_yet_unsent()) {
-    return true;
-  }
-  CHECK(m->message_id.is_server());
-
-  const int32 DEFAULT_REVOKE_TIME_LIMIT = td_->auth_manager_->is_bot() ? 2 * 86400 : std::numeric_limits<int32>::max();
-  auto content_type = m->content->get_type();
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      bool can_revoke_incoming = td_->option_manager_->get_option_boolean("revoke_pm_inbox", true);
-      int64 revoke_time_limit =
-          td_->option_manager_->get_option_integer("revoke_pm_time_limit", DEFAULT_REVOKE_TIME_LIMIT);
-
-      if (G()->unix_time() - m->date < 86400 && content_type == MessageContentType::Dice) {
-        return false;
-      }
-      return ((m->is_outgoing && !is_service_message_content(content_type)) ||
-              (can_revoke_incoming && content_type != MessageContentType::ScreenshotTaken)) &&
-             G()->unix_time() - m->date <= revoke_time_limit;
-    }
-    case DialogType::Chat: {
-      bool is_appointed_administrator = td_->chat_manager_->is_appointed_chat_administrator(dialog_id.get_chat_id());
-      int64 revoke_time_limit =
-          td_->option_manager_->get_option_integer("revoke_time_limit", DEFAULT_REVOKE_TIME_LIMIT);
-
-      return ((m->is_outgoing && !is_service_message_content(content_type)) || is_appointed_administrator) &&
-             G()->unix_time() - m->date <= revoke_time_limit;
-    }
-    case DialogType::Channel:
-      return true;  // any server message that can be deleted will be deleted for all participants
-    case DialogType::SecretChat:
-      // all non-service messages will be deleted for everyone if secret chat is active
-      return td_->user_manager_->get_secret_chat_state(dialog_id.get_secret_chat_id()) == SecretChatState::Active &&
-             !is_service_message_content(content_type);
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-void MessagesManager::delete_messages(DialogId dialog_id, const vector<MessageId> &input_message_ids, bool revoke,
-                                      Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "delete_messages"));
-
-  if (input_message_ids.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  auto dialog_type = dialog_id.get_type();
-  bool is_secret = dialog_type == DialogType::SecretChat;
-
-  vector<MessageId> message_ids;
-  message_ids.reserve(input_message_ids.size());
-  vector<MessageId> deleted_server_message_ids;
-
-  vector<MessageId> deleted_scheduled_server_message_ids;
-  for (auto message_id : input_message_ids) {
-    if (!message_id.is_valid() && !message_id.is_valid_scheduled()) {
-      return promise.set_error(Status::Error(400, "Invalid message identifier"));
-    }
-
-    message_id = get_persistent_message_id(d, message_id);
-    message_ids.push_back(message_id);
-    auto m = get_message_force(d, message_id, "delete_messages");
-    if (m != nullptr) {
-      if (m->message_id.is_scheduled()) {
-        if (m->message_id.is_scheduled_server()) {
-          deleted_scheduled_server_message_ids.push_back(m->message_id);
-        }
-      } else {
-        if (m->message_id.is_server() || is_secret) {
-          deleted_server_message_ids.push_back(m->message_id);
-        }
-      }
-    }
-  }
-
-  bool is_bot = td_->auth_manager_->is_bot();
-  for (auto message_id : message_ids) {
-    auto m = get_message(d, message_id);
-    if (!can_delete_message(dialog_id, m)) {
-      return promise.set_error(Status::Error(400, "Message can't be deleted"));
-    }
-    if (is_bot && !message_id.is_scheduled() && message_id.is_server() && !can_revoke_message(dialog_id, m)) {
-      return promise.set_error(Status::Error(400, "Message can't be deleted for everyone"));
-    }
-  }
-
-  MultiPromiseActorSafe mpas{"DeleteMessagesMultiPromiseActor"};
-  mpas.add_promise(std::move(promise));
-
-  auto lock = mpas.get_promise();
-  td_->message_query_manager_->delete_messages_on_server(dialog_id, std::move(deleted_server_message_ids), revoke, 0,
-                                                         mpas.get_promise());
-  td_->message_query_manager_->delete_scheduled_messages_on_server(
-      dialog_id, std::move(deleted_scheduled_server_message_ids), 0, mpas.get_promise());
-  lock.set_value(Unit());
-
-  delete_dialog_messages(d, message_ids, false, DELETE_MESSAGE_USER_REQUEST_SOURCE);
-}
-
-void MessagesManager::delete_sent_message_on_server(DialogId dialog_id, MessageId message_id,
-                                                    MessageId old_message_id) {
-  // this would be a no-op, because replies have already been removed in cancel_send_message_query
-  // update_reply_to_message_id(dialog_id, old_message_id, message_id, false, "delete_sent_message_on_server");
-
-  // being sent message was deleted by the user or is in an inaccessible channel
-  // don't need to send an update to the user, because the message has already been deleted
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    LOG(INFO) << "Ignore sent " << message_id << " in inaccessible " << dialog_id;
-    return;
-  }
-
-  LOG(INFO) << "Delete already deleted sent " << message_id << " in " << dialog_id << " from server";
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (get_message_force(d, message_id, "delete_sent_message_on_server") != nullptr) {
-    delete_messages(dialog_id, {message_id}, true, Auto());
-  } else {
-    if (message_id.is_valid()) {
-      CHECK(message_id.is_server());
-      td_->message_query_manager_->delete_messages_on_server(dialog_id, {message_id}, true, 0, Auto());
-    } else {
-      CHECK(message_id.is_scheduled_server());
-      td_->message_query_manager_->delete_scheduled_messages_on_server(dialog_id, {message_id}, 0, Auto());
-    }
-
-    bool need_update_dialog_pos = false;
-    auto message = delete_message(d, message_id, true, &need_update_dialog_pos, "delete_sent_message_on_server");
-    CHECK(message == nullptr);
-    if (need_update_dialog_pos) {  // last_clear_history_message_id might be removed
-      update_dialog_pos(d, "delete_sent_message_on_server");
-    }
-  }
-}
-
-void MessagesManager::on_messages_deleted(DialogId dialog_id, const vector<MessageId> &message_ids) {
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  for (auto &message_id : message_ids) {
-    CHECK(message_id.is_valid());
-    d->deleted_message_ids.insert(message_id);
-  }
-}
-
-void MessagesManager::on_failed_message_deletion(DialogId dialog_id, const vector<int32> &server_message_ids) {
-  if (G()->close_flag()) {
-    return;
-  }
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  vector<MessageFullId> message_full_ids;
-  for (auto &server_message_id : server_message_ids) {
-    auto message_id = MessageId(ServerMessageId(server_message_id));
-    d->deleted_message_ids.erase(message_id);
-    message_full_ids.emplace_back(dialog_id, message_id);
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return;
-  }
-  get_messages_from_server(std::move(message_full_ids), Promise<Unit>(), "on_failed_message_deletion");
-}
-
-void MessagesManager::on_scheduled_messages_deleted(DialogId dialog_id, const vector<MessageId> &message_ids) {
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  auto *scheduled_messages = add_dialog_scheduled_messages(d);
-  for (auto &message_id : message_ids) {
-    CHECK(message_id.is_scheduled_server());
-    scheduled_messages->deleted_scheduled_server_message_ids_.insert(message_id.get_scheduled_server_message_id());
-  }
-}
-
-void MessagesManager::on_failed_scheduled_message_deletion(DialogId dialog_id, const vector<MessageId> &message_ids) {
-  if (G()->close_flag()) {
-    return;
-  }
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (d->scheduled_messages != nullptr) {
-    for (auto &message_id : message_ids) {
-      d->scheduled_messages->deleted_scheduled_server_message_ids_.erase(message_id.get_scheduled_server_message_id());
-    }
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return;
-  }
-  if (td_->dialog_manager_->is_broadcast_channel(dialog_id) &&
-      !td_->chat_manager_->get_channel_status(dialog_id.get_channel_id()).can_post_messages()) {
-    return;
-  }
-  load_dialog_scheduled_messages(dialog_id, false, 0, Promise<Unit>());
-}
-
-MessagesManager::CanDeleteDialog MessagesManager::can_delete_dialog(const Dialog *d) const {
-  if (is_dialog_sponsored(d)) {
-    auto chat_source = sponsored_dialog_source_.get_chat_source_object();
-    if (chat_source != nullptr) {
-      switch (chat_source->get_id()) {
-        case td_api::chatSourcePublicServiceAnnouncement::ID:
-          // can delete for self (but only while removing from dialog list)
-          return {true, false};
-        default:
-          return {false, false};
-      }
-    }
-  }
-  if (td_->auth_manager_->is_bot() || !td_->dialog_manager_->have_input_peer(d->dialog_id, true, AccessRights::Read)) {
-    return {false, false};
-  }
-
-  switch (d->dialog_id.get_type()) {
-    case DialogType::User:
-      if (d->dialog_id == td_->dialog_manager_->get_my_dialog_id() ||
-          td_->user_manager_->is_user_deleted(d->dialog_id.get_user_id()) ||
-          td_->user_manager_->is_user_bot(d->dialog_id.get_user_id())) {
-        return {true, false};
-      }
-      return {true, td_->option_manager_->get_option_boolean("revoke_pm_inbox", true)};
-    case DialogType::Chat:
-      // chats can be deleted only for self and can be deleted for everyone by their creator
-      return {true, td_->chat_manager_->get_chat_status(d->dialog_id.get_chat_id()).is_creator()};
-    case DialogType::Channel: {
-      // private non-forum joined supergroups can be deleted for self
-      auto channel_id = d->dialog_id.get_channel_id();
-      return {!td_->chat_manager_->is_broadcast_channel(channel_id) &&
-                  !td_->chat_manager_->is_channel_public(channel_id) &&
-                  !td_->chat_manager_->is_forum_channel(channel_id) &&
-                  td_->chat_manager_->get_channel_status(channel_id).is_member(),
-              td_->chat_manager_->get_channel_can_be_deleted(channel_id)};
-    }
-    case DialogType::SecretChat:
-      if (td_->user_manager_->get_secret_chat_state(d->dialog_id.get_secret_chat_id()) == SecretChatState::Closed) {
-        // in a closed secret chats there is no way to delete messages for both users
-        return {true, false};
-      }
-      // active secret chats can be deleted only for both users
-      return {false, true};
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return {false, false};
-  }
-}
-
-void MessagesManager::delete_dialog_history(DialogId dialog_id, bool remove_from_dialog_list, bool revoke,
-                                            Promise<Unit> &&promise) {
-  LOG(INFO) << "Receive deleteChatHistory request to delete all messages in " << dialog_id
-            << ", remove_from_chat_list is " << remove_from_dialog_list << ", revoke is " << revoke;
-
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "delete_dialog_history"));
-
-  if (is_dialog_sponsored(d)) {
-    auto chat_source = sponsored_dialog_source_.get_chat_source_object();
-    if (chat_source == nullptr || chat_source->get_id() != td_api::chatSourcePublicServiceAnnouncement::ID) {
-      return promise.set_error(Status::Error(400, "Can't delete the chat"));
-    }
-    if (!remove_from_dialog_list) {
-      return promise.set_error(Status::Error(400, "Can't delete chat history without removing the chat"));
-    }
-
-    removed_sponsored_dialog_id_ = dialog_id;
-
-    td_->promo_data_manager_->hide_promo_data(dialog_id);
-
-    promise.set_value(Unit());
-    return;
-  }
-
-  auto can_delete = can_delete_dialog(d);
-  if (revoke) {
-    if (!can_delete.for_all_users_) {
-      if (!can_delete.for_self_) {
-        return promise.set_error(Status::Error(400, "Chat history can't be deleted"));
-      }
-
-      LOG(INFO) << "Can't delete history of " << dialog_id << " for everyone; delete it only for self";
-      revoke = false;
-    }
-  } else {
-    if (!can_delete.for_self_) {
-      return promise.set_error(
-          Status::Error(400, PSLICE() << "Can't delete history of " << dialog_id << " only for self"));
-    }
-  }
-
-  auto last_new_message_id = d->last_new_message_id;
-  if (dialog_id.get_type() != DialogType::SecretChat && last_new_message_id == MessageId()) {
-    // TODO get dialog from the server and delete history from last message identifier
-  }
-
-  bool allow_error = d->messages.empty();
-  auto old_order = d->order;
-
-  delete_all_dialog_messages(d, remove_from_dialog_list, true);
-
-  if (last_new_message_id.is_valid() && last_new_message_id == d->max_unavailable_message_id && !revoke &&
-      !(old_order != DEFAULT_ORDER && remove_from_dialog_list)) {
-    // history has already been cleared, nothing to do
-    promise.set_value(Unit());
-    return;
-  }
-
-  set_dialog_max_unavailable_message_id(dialog_id, last_new_message_id, false, "delete_dialog_history");
-
-  td_->message_query_manager_->delete_dialog_history_on_server(dialog_id, last_new_message_id, remove_from_dialog_list,
-                                                               revoke, allow_error, 0, std::move(promise));
-}
-
-void MessagesManager::delete_topic_history(DialogId dialog_id, MessageId top_thread_message_id,
-                                           Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "delete_topic_history"));
-
-  // auto old_order = d->order;
-  // delete_all_dialog_topic_messages(d, top_thread_message_id);
-
-  td_->message_query_manager_->delete_topic_history_on_server(dialog_id, top_thread_message_id, 0, std::move(promise));
-}
-
-void MessagesManager::delete_all_call_messages(bool revoke, Promise<Unit> &&promise) {
-  td_->message_query_manager_->delete_all_call_messages_on_server(revoke, 0, std::move(promise));
-}
-
-vector<MessageId> MessagesManager::find_dialog_messages(const Dialog *d,
-                                                        const std::function<bool(const Message *)> &condition) {
-  vector<MessageId> message_ids;
-  d->messages.foreach([&](const MessageId &message_id, const unique_ptr<Message> &message) {
-    CHECK(message_id == message->message_id);
-    if (condition(message.get())) {
-      message_ids.push_back(message_id);
-    }
-  });
-  return message_ids;
-}
-
-vector<MessageId> MessagesManager::find_unloadable_messages(const Dialog *d, int32 unload_before_date,
-                                                            bool &has_left_to_unload_messages) const {
-  vector<MessageId> message_ids;
-  for (auto it = d->message_lru_list.next; it != &d->message_lru_list; it = it->next) {
-    if (message_ids.size() >= MAX_UNLOADED_MESSAGES) {
-      has_left_to_unload_messages = true;
-      break;
-    }
-    const auto *m = static_cast<const Message *>(it);
-    if (can_unload_message(d, m)) {
-      if (m->last_access_date <= unload_before_date) {
-        message_ids.push_back(m->message_id);
-      } else {
-        has_left_to_unload_messages = true;
-      }
-    }
-    if (has_left_to_unload_messages && m->date > unload_before_date) {
-      // we aren't interested in unloading too new messages
-      break;
-    }
-  }
-  return message_ids;
-}
-
-void MessagesManager::delete_dialog_messages_by_sender(DialogId dialog_id, DialogId sender_dialog_id,
-                                                       Promise<Unit> &&promise) {
-  bool is_bot = td_->auth_manager_->is_bot();
-  CHECK(!is_bot);
-
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Write, "delete_dialog_messages_by_sender"));
-
-  if (!td_->dialog_manager_->have_input_peer(sender_dialog_id, false, AccessRights::Know)) {
-    return promise.set_error(Status::Error(400, "Message sender not found"));
-  }
-
-  ChannelId channel_id;
-  DialogParticipantStatus channel_status = DialogParticipantStatus::Left();
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-      return promise.set_error(
-          Status::Error(400, "All messages from a sender can be deleted only in supergroup chats"));
-    case DialogType::Channel: {
-      channel_id = dialog_id.get_channel_id();
-      if (!td_->chat_manager_->is_megagroup_channel(channel_id)) {
-        return promise.set_error(Status::Error(400, "The method is available only in supergroup chats"));
-      }
-      channel_status = td_->chat_manager_->get_channel_permissions(channel_id);
-      if (!channel_status.can_delete_messages()) {
-        return promise.set_error(Status::Error(400, "Need delete messages administrator right in the supergroup chat"));
-      }
-      channel_id = dialog_id.get_channel_id();
-      break;
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  CHECK(channel_id.is_valid());
-
-  if (sender_dialog_id.get_type() == DialogType::SecretChat) {
-    return promise.set_value(Unit());
-  }
-
-  if (G()->use_message_database()) {
-    LOG(INFO) << "Delete all messages from " << sender_dialog_id << " in " << dialog_id << " from database";
-    G()->td_db()->get_message_db_async()->delete_dialog_messages_by_sender(dialog_id, sender_dialog_id,
-                                                                           Auto());  // TODO Promise
-  }
-
-  vector<MessageId> message_ids = find_dialog_messages(d, [sender_dialog_id, channel_status, is_bot](const Message *m) {
-    return sender_dialog_id == get_message_sender(m) && can_delete_channel_message(channel_status, m, is_bot);
-  });
-
-  delete_dialog_messages(d, message_ids, false, DELETE_MESSAGE_USER_REQUEST_SOURCE);
-
-  td_->message_query_manager_->delete_all_channel_messages_by_sender_on_server(channel_id, sender_dialog_id, 0,
-                                                                               std::move(promise));
-}
-
-Status MessagesManager::fix_delete_message_min_max_dates(int32 &min_date, int32 &max_date) {
-  if (min_date > max_date) {
-    return Status::Error(400, "Wrong date interval specified");
-  }
-
-  const int32 telegram_launch_date = 1376438400;
-  if (max_date < telegram_launch_date) {
-    max_date = 0;
-    min_date = 0;
-    return Status::OK();
-  }
-  if (min_date < telegram_launch_date) {
-    min_date = telegram_launch_date;
-  }
-
-  auto current_date = max(G()->unix_time(), 1635000000);
-  if (min_date >= current_date - 30) {
-    max_date = 0;
-    min_date = 0;
-    return Status::OK();
-  }
-  if (max_date >= current_date - 30) {
-    max_date = current_date - 31;
-  }
-  CHECK(min_date <= max_date);
-  return Status::OK();
-}
-
-void MessagesManager::delete_dialog_messages_by_date(DialogId dialog_id, int32 min_date, int32 max_date, bool revoke,
-                                                     Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, false, AccessRights::Read, "delete_dialog_messages_by_date"));
-  TRY_STATUS_PROMISE(promise, fix_delete_message_min_max_dates(min_date, max_date));
-  if (max_date == 0) {
-    return promise.set_value(Unit());
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      break;
-    case DialogType::Chat:
-      if (revoke) {
-        return promise.set_error(Status::Error(400, "Bulk message revocation is unsupported in basic group chats"));
-      }
-      break;
-    case DialogType::Channel:
-      return promise.set_error(Status::Error(400, "Bulk message deletion is unsupported in supergroup chats"));
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  // TODO delete in database by dates
-
-  auto message_ids = d->ordered_messages.find_messages_by_date(min_date, max_date, get_get_message_date(d));
-
-  delete_dialog_messages(d, message_ids, false, DELETE_MESSAGE_USER_REQUEST_SOURCE);
-
-  td_->message_query_manager_->delete_dialog_messages_by_date_on_server(dialog_id, min_date, max_date, revoke, 0,
-                                                                        std::move(promise));
-}
-
-int32 MessagesManager::get_unload_dialog_delay() const {
-  constexpr int32 DIALOG_UNLOAD_DELAY = 60;        // seconds
-  constexpr int32 DIALOG_UNLOAD_BOT_DELAY = 1800;  // seconds
-
-  CHECK(is_message_unload_enabled());
-  auto default_unload_delay = td_->auth_manager_->is_bot() ? DIALOG_UNLOAD_BOT_DELAY : DIALOG_UNLOAD_DELAY;
-  return narrow_cast<int32>(td_->option_manager_->get_option_integer("message_unload_delay", default_unload_delay));
-}
-
-double MessagesManager::get_next_unload_dialog_delay(Dialog *d) const {
-  if (d->unload_dialog_delay_seed == 0) {
-    d->unload_dialog_delay_seed = Random::fast(1, 1000000000);
-  }
-  auto delay = get_unload_dialog_delay() / 4;
-  return delay + delay * 1e-9 * d->unload_dialog_delay_seed;
-}
-
-void MessagesManager::unload_dialog(DialogId dialog_id, int32 delay) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (delay < 0) {
-    delay = get_unload_dialog_delay() - 2;
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  if (!d->has_unload_timeout) {
-    LOG(INFO) << "Don't need to unload " << dialog_id;
-    // possible right after the dialog was opened
-    return;
-  }
-
-  if (!is_message_unload_enabled()) {
-    // just in case
-    LOG(INFO) << "Message unload is disabled in " << dialog_id;
-    d->has_unload_timeout = false;
-    return;
-  }
-
-  bool has_left_to_unload_messages = false;
-  auto to_unload_message_ids = find_unloadable_messages(d, G()->unix_time() - delay, has_left_to_unload_messages);
-
-  vector<int64> unloaded_message_ids;
-  vector<unique_ptr<Message>> unloaded_messages;
-  for (auto message_id : to_unload_message_ids) {
-    auto message = unload_message(d, message_id);
-    CHECK(message != nullptr);
-    if (message->is_update_sent) {
-      unloaded_message_ids.push_back(message->message_id.get());
-    }
-    unloaded_messages.push_back(std::move(message));
-  }
-  if (unloaded_messages.size() >= MIN_DELETED_ASYNCHRONOUSLY_MESSAGES) {
-    Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), unloaded_messages);
-  }
-
-  if (!to_unload_message_ids.empty() && !G()->use_message_database() && !d->is_empty) {
-    d->have_full_history = false;
-    d->have_full_history_source = 0;
-  }
-
-  if (!unloaded_message_ids.empty()) {
-    send_closure_later(
-        G()->td(), &Td::send_update,
-        td_api::make_object<td_api::updateDeleteMessages>(get_chat_id_object(dialog_id, "updateDeleteMessages"),
-                                                          std::move(unloaded_message_ids), false, true));
-  }
-
-  if (has_left_to_unload_messages) {
-    LOG(DEBUG) << "Need to unload more messages in " << dialog_id;
-    pending_unload_dialog_timeout_.add_timeout_in(
-        d->dialog_id.get(),
-        to_unload_message_ids.size() >= MAX_UNLOADED_MESSAGES ? 1.0 : get_next_unload_dialog_delay(d));
-  } else {
-    d->has_unload_timeout = false;
-  }
-}
-
-void MessagesManager::clear_dialog_message_list(Dialog *d, bool remove_from_dialog_list, int32 last_message_date) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (d->server_unread_count + d->local_unread_count > 0) {
-    MessageId max_message_id =
-        d->last_database_message_id.is_valid() ? d->last_database_message_id : d->last_new_message_id;
-    if (max_message_id.is_valid()) {
-      read_history_inbox(d, max_message_id, -1, "delete_all_dialog_messages 1");
-    }
-    if (d->server_unread_count != 0 || d->local_unread_count != 0) {
-      set_dialog_last_read_inbox_message_id(d, MessageId::min(), 0, 0, true, "delete_all_dialog_messages 2");
-    }
-  }
-
-  if (d->unread_mention_count > 0) {
-    set_dialog_unread_mention_count(d, 0);
-    send_update_chat_unread_mention_count(d);
-  }
-  if (d->unread_reaction_count > 0) {
-    set_dialog_unread_reaction_count(d, 0);
-    send_update_chat_unread_reaction_count(d, "delete_all_dialog_messages");
-  }
-
-  bool has_last_message_id = d->last_message_id != MessageId();
-  MessageId last_clear_history_message_id;
-  if (!remove_from_dialog_list) {
-    if (has_last_message_id) {
-      last_clear_history_message_id = d->last_message_id;
-    } else {
-      last_message_date = d->last_clear_history_date;
-      last_clear_history_message_id = d->last_clear_history_message_id;
-    }
-  }
-
-  if (d->reply_markup_message_id != MessageId()) {
-    set_dialog_reply_markup(d, MessageId());
-  }
-
-  set_dialog_first_database_message_id(d, MessageId(), "delete_all_dialog_messages 4");
-  set_dialog_last_database_message_id(d, MessageId(), "delete_all_dialog_messages 5");
-  set_dialog_last_clear_history_date(d, last_message_date, last_clear_history_message_id,
-                                     "delete_all_dialog_messages 6");
-  d->last_read_all_mentions_message_id = MessageId();  // it is not needed anymore
-  std::fill(d->message_count_by_index.begin(), d->message_count_by_index.end(), 0);
-
-  if (has_last_message_id) {
-    set_dialog_last_message_id(d, MessageId(), "delete_all_dialog_messages 7");
-    send_update_chat_last_message(d, "delete_all_dialog_messages 8");
-  }
-  if (remove_from_dialog_list) {
-    set_dialog_order(d, DEFAULT_ORDER, true, false, "delete_all_dialog_messages 9");
-  } else {
-    update_dialog_pos(d, "delete_all_dialog_messages 10");
-  }
-}
-
-void MessagesManager::delete_all_dialog_messages(Dialog *d, bool remove_from_dialog_list, bool is_permanently_deleted) {
-  CHECK(d != nullptr);
-  LOG(INFO) << "Delete all messages in " << d->dialog_id
-            << " with remove_from_dialog_list = " << remove_from_dialog_list
-            << " and is_permanently_deleted = " << is_permanently_deleted;
-  if (!td_->auth_manager_->is_bot()) {
-    int32 last_message_date = 0;
-    if (!remove_from_dialog_list && d->last_message_id.is_valid()) {
-      auto m = get_message(d, d->last_message_id);
-      CHECK(m != nullptr);
-      last_message_date = m->date;
-    }
-    clear_dialog_message_list(d, remove_from_dialog_list, last_message_date);
-  }
-
-  bool was_live_location_deleted = false;
-  vector<int64> deleted_message_ids;
-  d->messages.foreach([&](const MessageId &message_id, unique_ptr<Message> &message) {
-    CHECK(message_id == message->message_id);
-    Message *m = message.get();
-
-    static_cast<ListNode *>(m)->remove();
-
-    LOG(INFO) << "Delete " << message_id;
-    deleted_message_ids.push_back(message_id.get());
-
-    if (delete_active_live_location({d->dialog_id, m->message_id})) {
-      was_live_location_deleted = true;
-    }
-    remove_message_file_sources(d->dialog_id, m, "do_delete_all_dialog_messages");
-
-    on_message_deleted(d, m, is_permanently_deleted, "do_delete_all_dialog_messages");
-
-    if (is_permanently_deleted) {
-      d->deleted_message_ids.insert(m->message_id);
-    }
-  });
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), d->messages, d->ordered_messages);
-
-  if (was_live_location_deleted) {
-    send_update_active_live_location_messages();
-    save_active_live_locations();
-  }
-
-  delete_all_dialog_messages_from_database(d, MessageId::max(), "delete_all_dialog_messages 3");
-
-  if (d->notification_info != nullptr) {
-    // they aren't needed anymore
-    delete_all_dialog_notifications(d, MessageId::max(), "delete_all_dialog_messages 4");
-
-    d->notification_info->message_notification_group_.drop_max_removed_notification_id();
-    d->notification_info->mention_notification_group_.drop_max_removed_notification_id();
-    d->notification_info->notification_id_to_message_id_.clear();
-  }
-
-  on_dialog_updated(d->dialog_id, "delete_all_dialog_messages 11");
-
-  send_update_delete_messages(d->dialog_id, std::move(deleted_message_ids), is_permanently_deleted);
-}
-
-void MessagesManager::on_dialog_deleted(DialogId dialog_id, Promise<Unit> &&promise) {
-  LOG(INFO) << "Delete " << dialog_id;
-  Dialog *d = get_dialog_force(dialog_id, "on_dialog_deleted");
-  if (d == nullptr) {
-    return promise.set_value(Unit());
-  }
-
-  delete_all_dialog_messages(d, true, false);
-  if (dialog_id.get_type() != DialogType::SecretChat) {
-    d->have_full_history = false;
-    d->have_full_history_source = 0;
-    d->is_empty = false;
-    d->need_restore_reply_markup = true;
-    on_dialog_updated(dialog_id, "on_dialog_deleted");
-  }
-  td_->dialog_manager_->on_dialog_deleted(dialog_id);
-  if (dialog_id.get_type() == DialogType::Channel) {
-    G()->td_db()->get_binlog_pmc()->erase(get_channel_pts_key(dialog_id));
-  }
-
-  close_dialog(d);
-
-  td_->forum_topic_manager_->delete_all_dialog_topics(dialog_id);
-
-  promise.set_value(Unit());
-}
-
-void MessagesManager::on_update_dialog_group_call_rights(DialogId dialog_id) {
-  auto d = get_dialog(dialog_id);
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  if (d->active_group_call_id.is_valid()) {
-    td_->group_call_manager_->on_update_group_call_rights(d->active_group_call_id);
-  }
-}
-
-void MessagesManager::read_all_dialog_mentions(DialogId dialog_id, MessageId top_thread_message_id,
-                                               Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "read_all_dialog_mentions"));
-  TRY_STATUS_PROMISE(promise, can_use_top_thread_message_id(d, top_thread_message_id, MessageInputReplyTo()));
-
-  if (top_thread_message_id.is_valid()) {
-    LOG(INFO) << "Receive readAllChatMentions request in thread of " << top_thread_message_id << " in " << dialog_id;
-    return td_->message_query_manager_->read_all_topic_mentions_on_server(dialog_id, top_thread_message_id, 0,
-                                                                          std::move(promise));
-  } else {
-    LOG(INFO) << "Receive readAllChatMentions request in " << dialog_id << " with " << d->unread_mention_count
-              << " unread mentions";
-  }
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    CHECK(d->unread_mention_count == 0);
-    return promise.set_value(Unit());
-  }
-
-  if (d->last_new_message_id > d->last_read_all_mentions_message_id) {
-    d->last_read_all_mentions_message_id = d->last_new_message_id;
-    on_dialog_updated(dialog_id, "read_all_dialog_mentions");
-  }
-
-  auto message_ids = find_dialog_messages(d, [](const Message *m) { return m->contains_unread_mention; });
-
-  LOG(INFO) << "Found " << message_ids.size() << " messages with unread mentions in memory";
-  bool is_update_sent = false;
-  for (auto message_id : message_ids) {
-    auto m = get_message(d, message_id);
-    CHECK(m != nullptr);
-    CHECK(m->contains_unread_mention);
-    CHECK(m->message_id == message_id);
-    CHECK(m->message_id.is_valid());
-    remove_message_notification_id(d, m, true, false);  // must be called before contains_unread_mention is updated
-    m->contains_unread_mention = false;
-
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateMessageMentionRead>(
-                     get_chat_id_object(dialog_id, "updateMessageMentionRead"), m->message_id.get(), 0));
-    is_update_sent = true;
-    on_message_changed(d, m, true, "read_all_dialog_mentions");
-  }
-
-  if (d->unread_mention_count != 0) {
-    set_dialog_unread_mention_count(d, 0);
-    if (!is_update_sent) {
-      send_update_chat_unread_mention_count(d);
-    } else {
-      LOG(INFO) << "Update unread mention message count in " << dialog_id << " to " << d->unread_mention_count;
-      on_dialog_updated(dialog_id, "read_all_dialog_mentions");
-    }
-  }
-  remove_message_dialog_notifications(d, MessageId::max(), true, "read_all_dialog_mentions");
-
-  td_->message_query_manager_->read_all_dialog_mentions_on_server(dialog_id, 0, std::move(promise));
-}
-
-void MessagesManager::read_all_dialog_reactions(DialogId dialog_id, MessageId top_thread_message_id,
-                                                Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "read_all_dialog_reactions"));
-  TRY_STATUS_PROMISE(promise, can_use_top_thread_message_id(d, top_thread_message_id, MessageInputReplyTo()));
-
-  if (top_thread_message_id.is_valid()) {
-    LOG(INFO) << "Receive readAllChatReactions request in thread of " << top_thread_message_id << " in " << dialog_id;
-    return td_->message_query_manager_->read_all_topic_reactions_on_server(dialog_id, top_thread_message_id, 0,
-                                                                           std::move(promise));
-  } else {
-    LOG(INFO) << "Receive readAllChatReactions request in " << dialog_id << " with " << d->unread_reaction_count
-              << " unread reactions";
-  }
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    CHECK(d->unread_reaction_count == 0);
-    return promise.set_value(Unit());
-  }
-
-  auto message_ids = find_dialog_messages(
-      d, [this, dialog_id](const Message *m) { return has_unread_message_reactions(dialog_id, m); });
-
-  LOG(INFO) << "Found " << message_ids.size() << " messages with unread reactions in memory";
-  bool is_update_sent = false;
-  for (auto message_id : message_ids) {
-    auto m = get_message(d, message_id);
-    CHECK(m != nullptr);
-    CHECK(has_unread_message_reactions(dialog_id, m));
-    CHECK(m->message_id == message_id);
-    CHECK(m->message_id.is_valid());
-    // remove_message_notification_id(d, m, true, false);  // must be called before unread_reactions are cleared
-    m->reactions->unread_reactions_.clear();
-
-    send_update_message_unread_reactions(dialog_id, m, 0);
-    is_update_sent = true;
-    on_message_changed(d, m, true, "read_all_dialog_reactions");
-  }
-
-  if (d->unread_reaction_count != 0) {
-    set_dialog_unread_reaction_count(d, 0);
-    if (!is_update_sent) {
-      send_update_chat_unread_reaction_count(d, "read_all_dialog_reactions");
-    } else {
-      LOG(INFO) << "Update unread reaction message count in " << dialog_id << " to " << d->unread_reaction_count;
-      on_dialog_updated(dialog_id, "read_all_dialog_reactions");
-    }
-  }
-  // remove_message_dialog_notifications(d, MessageId::max(), true, "read_all_dialog_reactions");
-
-  td_->message_query_manager_->read_all_dialog_reactions_on_server(dialog_id, 0, std::move(promise));
-}
-
-void MessagesManager::read_message_content_from_updates(MessageId message_id, int32 read_date) {
-  if (!message_id.is_valid() || !message_id.is_server()) {
-    LOG(ERROR) << "Incoming update tries to read content of " << message_id;
-    return;
-  }
-
-  Dialog *d = get_dialog_by_message_id(message_id);
-  if (d != nullptr) {
-    Message *m = get_message(d, message_id);
-    CHECK(m != nullptr);
-    read_message_content(d, m, false, read_date, "read_message_content_from_updates");
-  }
-}
-
-void MessagesManager::read_channel_message_content_from_updates(Dialog *d, MessageId message_id) {
-  CHECK(d != nullptr);
-  if (!message_id.is_valid() || !message_id.is_server()) {
-    LOG(ERROR) << "Incoming update tries to read content of " << message_id << " in " << d->dialog_id;
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  Message *m = get_message_force(d, message_id, "read_channel_message_content_from_updates");
-  if (m != nullptr) {
-    read_message_content(d, m, false, 0, "read_channel_message_content_from_updates");
-  } else {
-    if (!td_->dialog_manager_->have_input_peer(d->dialog_id, false, AccessRights::Read)) {
-      LOG(INFO) << "Ignore updateChannelReadMessagesContents in inaccessible " << d->dialog_id;
-      if (d->unread_mention_count != 0) {
-        set_dialog_unread_mention_count(d, 0);
-      }
-      return;
-    }
-    if (message_id > d->last_new_message_id && d->last_new_message_id.is_valid()) {
-      get_channel_difference(d->dialog_id, d->pts, 0, message_id, true, "read_channel_message_content_from_updates");
-    } else {
-      // there is no message, so the update can be ignored
-      if (d->unread_mention_count > 0) {
-        // but if the chat has unread mentions, then number of unread mentions could have been changed
-        repair_dialog_unread_mention_count(d, "read_channel_message_content_from_updates");
-      }
-    }
-  }
-}
-
-bool MessagesManager::read_message_content(Dialog *d, Message *m, bool is_local_read, int32 read_date,
-                                           const char *source) {
-  LOG_CHECK(m != nullptr) << source;
-  CHECK(!m->message_id.is_scheduled());
-  bool is_mention_read = update_message_contains_unread_mention(d, m, false, "read_message_content");
-  bool is_content_read = update_opened_message_content(m->content.get());
-  if (ttl_on_open(d, m, Time::now(), is_local_read, read_date)) {
-    is_content_read = true;
-  }
-
-  LOG(INFO) << "Read message content of " << m->message_id << " in " << d->dialog_id
-            << ": is_mention_read = " << is_mention_read << ", is_content_read = " << is_content_read;
-  if (is_mention_read || is_content_read) {
-    on_message_changed(d, m, true, "read_message_content");
-    if (is_content_read) {
-      send_closure(G()->td(), &Td::send_update,
-                   td_api::make_object<td_api::updateMessageContentOpened>(
-                       get_chat_id_object(d->dialog_id, "updateMessageContentOpened"), m->message_id.get()));
-    }
-    return true;
-  }
-  return false;
-}
-
-bool MessagesManager::has_incoming_notification(DialogId dialog_id, const Message *m) const {
-  CHECK(m != nullptr);
-  if (m->is_from_scheduled) {
-    return true;
-  }
-  return !m->message_id.is_scheduled() && !m->is_outgoing && dialog_id != td_->dialog_manager_->get_my_dialog_id();
-}
-
-int32 MessagesManager::calc_new_unread_count_from_last_unread(Dialog *d, MessageId max_message_id,
-                                                              MessageType type) const {
-  CHECK(!max_message_id.is_scheduled());
-  auto it = d->ordered_messages.get_const_iterator(max_message_id);
-  if (*it == nullptr || (*it)->get_message_id() != max_message_id) {
-    return -1;
-  }
-
-  int32 unread_count = type == MessageType::Server ? d->server_unread_count : d->local_unread_count;
-  while (*it != nullptr && (*it)->get_message_id() > d->last_read_inbox_message_id) {
-    auto message_id = (*it)->get_message_id();
-    if (message_id.get_type() == type && has_incoming_notification(d->dialog_id, get_message(d, message_id))) {
-      unread_count--;
-    }
-    --it;
-  }
-  if (*it == nullptr || (*it)->get_message_id() != d->last_read_inbox_message_id) {
-    return -1;
-  }
-
-  LOG(INFO) << "Found " << unread_count << " unread messages in " << d->dialog_id << " from last unread message";
-  return unread_count;
-}
-
-int32 MessagesManager::calc_new_unread_count_from_the_end(Dialog *d, MessageId max_message_id, MessageType type,
-                                                          int32 hint_unread_count) const {
-  CHECK(!max_message_id.is_scheduled());
-  int32 unread_count = 0;
-  auto it = d->ordered_messages.get_const_iterator(MessageId::max());
-  while (*it != nullptr && (*it)->get_message_id() > max_message_id) {
-    auto message_id = (*it)->get_message_id();
-    if (message_id.get_type() == type && has_incoming_notification(d->dialog_id, get_message(d, message_id))) {
-      unread_count++;
-    }
-    --it;
-  }
-
-  bool is_count_exact = d->last_message_id.is_valid() && *it != nullptr;
-  if (hint_unread_count >= 0) {
-    if (is_count_exact) {
-      if (hint_unread_count == unread_count) {
-        return hint_unread_count;
-      }
-    } else {
-      if (hint_unread_count >= unread_count) {
-        return hint_unread_count;
-      }
-    }
-
-    // hint_unread_count is definitely wrong, ignore it
-
-    if (need_unread_counter(d->order)) {
-      LOG(ERROR) << "Receive hint_unread_count = " << hint_unread_count << ", but found " << unread_count
-                 << " unread messages in " << d->dialog_id;
-    }
-  }
-
-  if (!is_count_exact) {
-    // unread count is likely to be calculated wrong, so ignore it
-    return -1;
-  }
-
-  LOG(INFO) << "Found " << unread_count << " unread messages in " << d->dialog_id << " from the end";
-  return unread_count;
-}
-
-int32 MessagesManager::calc_new_unread_count(Dialog *d, MessageId max_message_id, MessageType type,
-                                             int32 hint_unread_count) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(!max_message_id.is_scheduled());
-  if (d->is_empty) {
-    return 0;
-  }
-
-  if (!d->last_read_inbox_message_id.is_valid()) {
-    return calc_new_unread_count_from_the_end(d, max_message_id, type, hint_unread_count);
-  }
-
-  if (!d->last_message_id.is_valid() ||
-      (d->last_message_id.get() - max_message_id.get() > max_message_id.get() - d->last_read_inbox_message_id.get())) {
-    int32 unread_count = calc_new_unread_count_from_last_unread(d, max_message_id, type);
-    return unread_count >= 0 ? unread_count
-                             : calc_new_unread_count_from_the_end(d, max_message_id, type, hint_unread_count);
-  } else {
-    int32 unread_count = calc_new_unread_count_from_the_end(d, max_message_id, type, hint_unread_count);
-    return unread_count >= 0 ? unread_count : calc_new_unread_count_from_last_unread(d, max_message_id, type);
-  }
-}
-
-void MessagesManager::repair_server_unread_count(DialogId dialog_id, int32 unread_count, const char *source) {
-  if (td_->auth_manager_->is_bot() || !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return;
-  }
-  if (pending_read_history_timeout_.has_timeout(dialog_id.get())) {
-    return;  // postpone until read history request is sent
-  }
-
-  LOG(INFO) << "Repair server unread count in " << dialog_id << " from " << unread_count << " from " << source;
-  create_actor<SleepActor>("RepairServerUnreadCountSleepActor", 0.2,
-                           PromiseCreator::lambda([actor_id = actor_id(this), dialog_id](Unit) {
-                             send_closure(actor_id, &MessagesManager::send_get_dialog_query, dialog_id, Promise<Unit>(),
-                                          0, "repair_server_unread_count");
-                           }))
-      .release();
-}
-
-void MessagesManager::repair_channel_server_unread_count(Dialog *d) {
-  CHECK(d != nullptr);
-  CHECK(d->dialog_id.get_type() == DialogType::Channel);
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (d->last_read_inbox_message_id >= d->last_new_message_id) {
-    // all messages are already read
-    return;
-  }
-  if (!need_unread_counter(d->order)) {
-    // there are no unread counters in left channels
-    return;
-  }
-  if (!d->need_repair_channel_server_unread_count) {
-    d->need_repair_channel_server_unread_count = true;
-    on_dialog_updated(d->dialog_id, "repair_channel_server_unread_count");
-  }
-
-  LOG(INFO) << "Reload ChannelFull for " << d->dialog_id << " to repair unread message counts";
-  td_->dialog_manager_->get_dialog_info_full(d->dialog_id, Auto(), "repair_channel_server_unread_count");
-}
-
-void MessagesManager::repair_dialog_unread_reaction_count(Dialog *d, Promise<Unit> &&promise, const char *source) {
-  CHECK(d != nullptr);
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (!d->need_repair_unread_reaction_count) {
-    d->need_repair_unread_reaction_count = true;
-    on_dialog_updated(d->dialog_id, "repair_dialog_unread_reaction_count");
-  }
-
-  send_get_dialog_query(d->dialog_id, std::move(promise), 0, source);
-}
-
-void MessagesManager::repair_dialog_unread_mention_count(Dialog *d, const char *source) {
-  CHECK(d != nullptr);
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (!d->need_repair_unread_mention_count) {
-    d->need_repair_unread_mention_count = true;
-    on_dialog_updated(d->dialog_id, "repair_dialog_unread_mention_count");
-  }
-
-  send_get_dialog_query(d->dialog_id, Promise<Unit>(), 0, source);
-}
-
-void MessagesManager::read_history_inbox(DialogId dialog_id, MessageId max_message_id, int32 unread_count,
-                                         const char *source) {
-  CHECK(!max_message_id.is_scheduled());
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "read_history_inbox");
-  if (d != nullptr) {
-    read_history_inbox(d, max_message_id, unread_count, source);
-  } else {
-    LOG(INFO) << "Receive read inbox about unknown " << dialog_id << " from " << source;
-  }
-}
-
-void MessagesManager::read_history_inbox(Dialog *d, MessageId max_message_id, int32 unread_count, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto dialog_id = d->dialog_id;
-  if (d->need_repair_channel_server_unread_count) {
-    d->need_repair_channel_server_unread_count = false;
-    on_dialog_updated(dialog_id, "read_history_inbox");
-  }
-
-  // there can be updateReadHistoryInbox up to message 0, if messages where read and then all messages where deleted
-  if (!max_message_id.is_valid() && max_message_id != MessageId()) {
-    LOG(ERROR) << "Receive read inbox update in " << dialog_id << " up to " << max_message_id << " from " << source;
-    return;
-  }
-  if (d->is_last_read_inbox_message_id_inited && max_message_id <= d->last_read_inbox_message_id) {
-    LOG(INFO) << "Receive read inbox update in " << dialog_id << " up to " << max_message_id << " from " << source
-              << ", but all messages have already been read up to " << d->last_read_inbox_message_id;
-    if (max_message_id == d->last_read_inbox_message_id && unread_count >= 0 &&
-        unread_count != d->server_unread_count) {
-      set_dialog_last_read_inbox_message_id(d, MessageId::min(), unread_count, d->local_unread_count, true, source);
-    }
-    return;
-  }
-
-  if (max_message_id != MessageId() && max_message_id.is_yet_unsent()) {
-    LOG(ERROR) << "Tried to update last read inbox message in " << dialog_id << " with " << max_message_id << " from "
-               << source;
-    return;
-  }
-
-  if (max_message_id != MessageId() && unread_count > 0 && max_message_id >= d->last_new_message_id &&
-      max_message_id >= d->last_message_id && max_message_id >= d->last_database_message_id) {
-    if (d->last_new_message_id.is_valid()) {
-      LOG(ERROR) << "Have unknown " << unread_count << " unread messages up to " << max_message_id << " in "
-                 << dialog_id << " with last_new_message_id = " << d->last_new_message_id
-                 << ", last_message_id = " << d->last_message_id
-                 << ", last_database_message_id = " << d->last_database_message_id << ", and " << d->server_unread_count
-                 << " unread messages up to " << d->last_read_inbox_message_id << " from " << source;
-      unread_count = d->server_unread_count;
-    } else {
-      unread_count = 0;
-    }
-  }
-
-  LOG_IF(INFO, d->last_new_message_id.is_valid() && max_message_id > d->last_new_message_id &&
-                   (d->notification_info != nullptr &&
-                    max_message_id > d->notification_info->max_push_notification_message_id_) &&
-                   max_message_id.is_server() && dialog_id.get_type() != DialogType::Channel &&
-                   !running_get_difference_)
-      << "Receive read inbox update up to unknown " << max_message_id << " in " << dialog_id << " from " << source
-      << ". Last new is " << d->last_new_message_id << ", unread_count = " << unread_count
-      << ". Possible only for deleted incoming message";
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    ttl_read_history(d, false, max_message_id, d->last_read_inbox_message_id, Time::now());
-  }
-
-  if (max_message_id > d->last_new_message_id && dialog_id.get_type() == DialogType::Channel) {
-    schedule_get_channel_difference(dialog_id, 0, max_message_id, 0.001, "read_history_inbox");
-  }
-
-  int32 server_unread_count = calc_new_unread_count(d, max_message_id, MessageType::Server, unread_count);
-  int32 local_unread_count =
-      d->local_unread_count == 0 ? 0 : calc_new_unread_count(d, max_message_id, MessageType::Local, -1);
-
-  if (server_unread_count < 0) {
-    server_unread_count = unread_count >= 0 ? unread_count : d->server_unread_count;
-    if (td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read) && need_unread_counter(d->order)) {
-      d->need_repair_server_unread_count = true;
-      on_dialog_updated(dialog_id, "read_history_inbox");
-      repair_server_unread_count(dialog_id, server_unread_count, "read_history_inbox");
-    }
-  }
-  if (local_unread_count < 0) {
-    // TODO repair local unread count
-    local_unread_count = d->local_unread_count;
-  }
-
-  set_dialog_last_read_inbox_message_id(d, max_message_id, server_unread_count, local_unread_count, true, source);
-
-  if (d->is_marked_as_unread && max_message_id != MessageId()) {
-    set_dialog_is_marked_as_unread(d, false);
-  }
-}
-
-void MessagesManager::read_history_outbox(DialogId dialog_id, MessageId max_message_id, int32 read_date) {
-  CHECK(!max_message_id.is_scheduled());
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "read_history_outbox");
-  if (d != nullptr) {
-    read_history_outbox(d, max_message_id, read_date);
-  } else {
-    LOG(INFO) << "Receive read outbox update about unknown " << dialog_id;
-  }
-}
-
-void MessagesManager::read_history_outbox(Dialog *d, MessageId max_message_id, int32 read_date) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto dialog_id = d->dialog_id;
-  if (!max_message_id.is_valid()) {
-    LOG(ERROR) << "Receive read outbox update in " << dialog_id << " with " << max_message_id;
-    return;
-  }
-  if (max_message_id <= d->last_read_outbox_message_id) {
-    LOG(INFO) << "Receive read outbox update up to " << max_message_id
-              << ", but all messages have already been read up to " << d->last_read_outbox_message_id;
-    return;
-  }
-
-  if (max_message_id.is_yet_unsent()) {
-    LOG(ERROR) << "Tried to update last read outbox message with " << max_message_id << " in " << dialog_id;
-    return;
-  }
-
-  // it is impossible for just sent outgoing messages because updates are ordered by PTS
-  if (d->last_new_message_id.is_valid() && max_message_id > d->last_new_message_id &&
-      dialog_id.get_type() != DialogType::Channel) {
-    LOG(INFO) << "Receive read outbox update about unknown " << max_message_id << " in " << dialog_id
-              << " with last new " << d->last_new_message_id << ". Possible only for deleted outgoing message";
-  }
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    double server_time = G()->server_time();
-    double read_time = Time::now();
-    if (read_date <= 0) {
-      LOG(ERROR) << "Receive wrong read date " << read_date << " in " << dialog_id;
-    } else if (read_date < server_time) {
-      read_time -= (server_time - read_date);
-    }
-    ttl_read_history(d, true, max_message_id, d->last_read_outbox_message_id, read_time);
-  }
-
-  set_dialog_last_read_outbox_message_id(d, max_message_id);
-}
-
-bool MessagesManager::need_unread_counter(int64 dialog_order) {
-  return dialog_order != DEFAULT_ORDER;
-}
-
-int32 MessagesManager::get_dialog_total_count(const DialogList &list) const {
-  int32 sponsored_dialog_count = 0;
-  if (sponsored_dialog_id_.is_valid() && list.dialog_list_id == DialogListId(FolderId::main())) {
-    auto d = get_dialog(sponsored_dialog_id_);
-    CHECK(d != nullptr);
-    if (is_dialog_sponsored(d)) {
-      sponsored_dialog_count = 1;
-    }
-  }
-  if (list.server_dialog_total_count_ != -1 && list.secret_chat_total_count_ != -1) {
-    return std::max(list.server_dialog_total_count_ + list.secret_chat_total_count_,
-                    list.in_memory_dialog_total_count_) +
-           sponsored_dialog_count;
-  }
-  if (list.list_last_dialog_date_ == MAX_DIALOG_DATE) {
-    return list.in_memory_dialog_total_count_ + sponsored_dialog_count;
-  }
-  return list.in_memory_dialog_total_count_ + sponsored_dialog_count + 1;
-}
-
-void MessagesManager::repair_server_dialog_total_count(DialogListId dialog_list_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (!dialog_list_id.is_folder()) {
-    // can repair total count only in folders
-    return;
-  }
-
-  LOG(INFO) << "Repair total chat count in " << dialog_list_id;
-  td_->create_handler<GetDialogListQuery>(Promise<Unit>())
-      ->send(dialog_list_id.get_folder_id(), 2147483647, ServerMessageId(), DialogId(), 1);
-}
-
-void MessagesManager::repair_secret_chat_total_count(DialogListId dialog_list_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (G()->use_message_database() && dialog_list_id.is_folder()) {
-    // race-prone
-    G()->td_db()->get_dialog_db_async()->get_secret_chat_count(
-        dialog_list_id.get_folder_id(),
-        PromiseCreator::lambda([actor_id = actor_id(this), dialog_list_id](Result<int32> result) {
-          if (result.is_error()) {
-            return;
-          }
-          send_closure(actor_id, &MessagesManager::on_get_secret_chat_total_count, dialog_list_id, result.move_as_ok());
-        }));
-  } else {
-    int32 total_count = 0;
-    auto *list = get_dialog_list(dialog_list_id);
-    CHECK(list != nullptr);
-    for (auto &folder_id : get_dialog_list_folder_ids(*list)) {
-      const auto *folder_list = get_dialog_list(DialogListId(folder_id));
-      CHECK(folder_list != nullptr);
-      if (folder_list->need_unread_count_recalc_) {
-        // can't repair total secret chat count yet
-        return;
-      }
-
-      const auto *folder = get_dialog_folder(folder_id);
-      CHECK(folder != nullptr);
-      for (const auto &dialog_date : folder->ordered_dialogs_) {
-        auto dialog_id = dialog_date.get_dialog_id();
-        if (dialog_id.get_type() == DialogType::SecretChat && dialog_date.get_order() != DEFAULT_ORDER) {
-          total_count++;
-        }
-      }
-    }
-    on_get_secret_chat_total_count(dialog_list_id, total_count);
-  }
-}
-
-void MessagesManager::on_get_secret_chat_total_count(DialogListId dialog_list_id, int32 total_count) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(!td_->auth_manager_->is_bot());
-  auto *list = get_dialog_list(dialog_list_id);
-  if (list == nullptr) {
-    // just in case
-    return;
-  }
-  CHECK(total_count >= 0);
-  if (list->secret_chat_total_count_ != total_count) {
-    auto old_dialog_total_count = get_dialog_total_count(*list);
-    list->secret_chat_total_count_ = total_count;
-    if (list->is_dialog_unread_count_inited_) {
-      if (old_dialog_total_count != get_dialog_total_count(*list)) {
-        send_update_unread_chat_count(*list, DialogId(), true, "on_get_secret_chat_total_count");
-      } else {
-        save_unread_chat_count(*list);
-      }
-    }
-  }
-}
-
-void MessagesManager::recalc_unread_count(DialogListId dialog_list_id, int32 old_dialog_total_count, bool force) {
-  if (G()->close_flag() || td_->auth_manager_->is_bot() || !G()->use_message_database()) {
-    return;
-  }
-
-  auto *list_ptr = get_dialog_list(dialog_list_id);
-  CHECK(list_ptr != nullptr);
-  auto &list = *list_ptr;
-  if (!list.need_unread_count_recalc_ && !force) {
-    return;
-  }
-  LOG(INFO) << "Recalculate unread counts in " << dialog_list_id;
-  list.need_unread_count_recalc_ = false;
-  list.is_message_unread_count_inited_ = true;
-  list.is_dialog_unread_count_inited_ = true;
-
-  int32 message_total_count = 0;
-  int32 message_muted_count = 0;
-  int32 dialog_total_count = 0;
-  int32 dialog_muted_count = 0;
-  int32 dialog_marked_count = 0;
-  int32 dialog_muted_marked_count = 0;
-  int32 server_dialog_total_count = 0;
-  int32 secret_chat_total_count = 0;
-  for (auto folder_id : get_dialog_list_folder_ids(list)) {
-    const auto &folder = *get_dialog_folder(folder_id);
-    for (const auto &dialog_date : folder.ordered_dialogs_) {
-      if (dialog_date.get_order() == DEFAULT_ORDER) {
-        break;
-      }
-
-      auto dialog_id = dialog_date.get_dialog_id();
-      Dialog *d = get_dialog(dialog_id);
-      CHECK(d != nullptr);
-      if (!is_dialog_in_list(d, dialog_list_id)) {
-        continue;
-      }
-
-      int unread_count = d->server_unread_count + d->local_unread_count;
-      if (need_unread_counter(d->order) && (unread_count > 0 || d->is_marked_as_unread)) {
-        message_total_count += unread_count;
-        dialog_total_count++;
-        if (unread_count == 0 && d->is_marked_as_unread) {
-          dialog_marked_count++;
-        }
-
-        LOG(DEBUG) << "Have " << unread_count << " messages in " << dialog_id;
-        if (is_dialog_muted(d)) {
-          message_muted_count += unread_count;
-          dialog_muted_count++;
-          if (unread_count == 0 && d->is_marked_as_unread) {
-            dialog_muted_marked_count++;
-          }
-        }
-      }
-      if (d->order != DEFAULT_ORDER) {  // must not count sponsored dialog, which is added independently
-        if (dialog_id.get_type() == DialogType::SecretChat) {
-          secret_chat_total_count++;
-        } else {
-          server_dialog_total_count++;
-        }
-      }
-    }
-  }
-
-  if (list.unread_message_total_count_ != message_total_count ||
-      list.unread_message_muted_count_ != message_muted_count) {
-    list.unread_message_total_count_ = message_total_count;
-    list.unread_message_muted_count_ = message_muted_count;
-    send_update_unread_message_count(list, DialogId(), true, "recalc_unread_count");
-  }
-
-  if (old_dialog_total_count == -1) {
-    old_dialog_total_count = get_dialog_total_count(list);
-  }
-  bool need_save = false;
-  if (list.list_last_dialog_date_ == MAX_DIALOG_DATE) {
-    if (server_dialog_total_count != list.server_dialog_total_count_ ||
-        secret_chat_total_count != list.secret_chat_total_count_) {
-      list.server_dialog_total_count_ = server_dialog_total_count;
-      list.secret_chat_total_count_ = secret_chat_total_count;
-      need_save = true;
-    }
-  } else {
-    if (list.server_dialog_total_count_ == -1) {
-      // recalc_unread_count is called only after getDialogs request; it is unneeded to call getDialogs again
-      repair_server_dialog_total_count(dialog_list_id);
-    }
-
-    if (list.secret_chat_total_count_ == -1) {
-      repair_secret_chat_total_count(dialog_list_id);
-    }
-  }
-  if (list.unread_dialog_total_count_ != dialog_total_count || list.unread_dialog_muted_count_ != dialog_muted_count ||
-      list.unread_dialog_marked_count_ != dialog_marked_count ||
-      list.unread_dialog_muted_marked_count_ != dialog_muted_marked_count ||
-      old_dialog_total_count != get_dialog_total_count(list)) {
-    list.unread_dialog_total_count_ = dialog_total_count;
-    list.unread_dialog_muted_count_ = dialog_muted_count;
-    list.unread_dialog_marked_count_ = dialog_marked_count;
-    list.unread_dialog_muted_marked_count_ = dialog_muted_marked_count;
-    send_update_unread_chat_count(list, DialogId(), true, "recalc_unread_count");
-  } else if (need_save) {
-    save_unread_chat_count(list);
-  }
-}
-
-void MessagesManager::set_dialog_last_read_inbox_message_id(Dialog *d, MessageId message_id, int32 server_unread_count,
-                                                            int32 local_unread_count, bool force_update,
-                                                            const char *source) {
-  CHECK(!message_id.is_scheduled());
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG(INFO) << "Update last read inbox message in " << d->dialog_id << " from " << d->last_read_inbox_message_id
-            << " to " << message_id << " and update unread message count from " << d->server_unread_count << " + "
-            << d->local_unread_count << " to " << server_unread_count << " + " << local_unread_count << " from "
-            << source;
-  if (message_id != MessageId::min()) {
-    d->last_read_inbox_message_id = message_id;
-    d->is_last_read_inbox_message_id_inited = true;
-  }
-  int32 old_unread_count = d->server_unread_count + d->local_unread_count;
-  d->server_unread_count = server_unread_count;
-  d->local_unread_count = local_unread_count;
-
-  if (need_unread_counter(d->order)) {
-    const int32 new_unread_count = d->server_unread_count + d->local_unread_count;
-    for (auto &list : get_dialog_lists(d)) {
-      int32 delta = new_unread_count - old_unread_count;
-      if (delta != 0 && list.is_message_unread_count_inited_) {
-        list.unread_message_total_count_ += delta;
-        if (is_dialog_muted(d)) {
-          list.unread_message_muted_count_ += delta;
-        }
-        send_update_unread_message_count(list, d->dialog_id, force_update, source);
-      }
-      delta = static_cast<int32>(new_unread_count != 0) - static_cast<int32>(old_unread_count != 0);
-      if (delta != 0 && list.is_dialog_unread_count_inited_) {
-        if (d->is_marked_as_unread) {
-          list.unread_dialog_marked_count_ -= delta;
-        } else {
-          list.unread_dialog_total_count_ += delta;
-        }
-        if (is_dialog_muted(d)) {
-          if (d->is_marked_as_unread) {
-            list.unread_dialog_muted_marked_count_ -= delta;
-          } else {
-            list.unread_dialog_muted_count_ += delta;
-          }
-        }
-        send_update_unread_chat_count(list, d->dialog_id, force_update, source);
-      }
-    }
-
-    bool was_unread = old_unread_count != 0 || d->is_marked_as_unread;
-    bool is_unread = new_unread_count != 0 || d->is_marked_as_unread;
-    if (td_->dialog_filter_manager_->have_dialog_filters() && was_unread != is_unread) {
-      update_dialog_lists(d, get_dialog_positions(d), true, false, "set_dialog_last_read_inbox_message_id");
-    }
-  }
-
-  if (message_id != MessageId::min() && d->last_read_inbox_message_id.is_valid() &&
-      (d->order != DEFAULT_ORDER || is_dialog_sponsored(d))) {
-    VLOG(notifications) << "Remove some notifications in " << d->dialog_id
-                        << " after updating last read inbox message to " << message_id
-                        << " and unread message count to " << server_unread_count << " + " << local_unread_count
-                        << " from " << source;
-    if (d->notification_info != nullptr && d->notification_info->message_notification_group_.is_valid()) {
-      auto total_count = get_dialog_pending_notification_count(d, false);
-      if (total_count == 0) {
-        set_dialog_last_notification(d->dialog_id, d->notification_info->message_notification_group_, 0,
-                                     NotificationId(), source);
-      }
-      if (!d->notification_info->pending_new_message_notifications_.empty()) {
-        for (auto &it : d->notification_info->pending_new_message_notifications_) {
-          if (it.second <= message_id) {
-            it.first = DialogId();
-          }
-        }
-        flush_pending_new_message_notifications(d->dialog_id, false, DialogId(UserId(static_cast<int64>(1))));
-      }
-      total_count -= static_cast<int32>(d->notification_info->pending_new_message_notifications_.size());
-      if (total_count < 0) {
-        LOG(ERROR) << "Total message notification count is " << total_count << " in " << d->dialog_id
-                   << " with old unread_count = " << old_unread_count << " and "
-                   << d->notification_info->pending_new_message_notifications_
-                   << " pending new message notifications after reading history up to " << message_id;
-        total_count = 0;
-      }
-      send_closure_later(G()->notification_manager(), &NotificationManager::remove_notification_group,
-                         d->notification_info->message_notification_group_.get_group_id(), NotificationId(),
-                         d->last_read_inbox_message_id, total_count, Slice(source) == Slice("read_dialog_inbox"),
-                         Promise<Unit>());
-    }
-
-    if (d->notification_info != nullptr && d->notification_info->mention_notification_group_.is_valid() &&
-        d->notification_info->pinned_message_notification_message_id_.is_valid() &&
-        d->notification_info->pinned_message_notification_message_id_ <= d->last_read_inbox_message_id) {
-      // remove pinned message notification when it is read
-      remove_dialog_pinned_message_notification(d, source);
-    }
-  }
-
-  on_dialog_updated(d->dialog_id, source);
-  send_update_chat_read_inbox(d, force_update, source);
-}
-
-void MessagesManager::set_dialog_last_read_outbox_message_id(Dialog *d, MessageId message_id) {
-  CHECK(!message_id.is_scheduled());
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG(INFO) << "Update last read outbox message in " << d->dialog_id << " from " << d->last_read_outbox_message_id
-            << " to " << message_id;
-  d->last_read_outbox_message_id = message_id;
-  d->is_last_read_outbox_message_id_inited = true;
-  send_update_chat_read_outbox(d);
-}
-
-void MessagesManager::set_dialog_max_unavailable_message_id(DialogId dialog_id, MessageId max_unavailable_message_id,
-                                                            bool from_update, const char *source) {
-  CHECK(!max_unavailable_message_id.is_scheduled());
-
-  Dialog *d = get_dialog_force(dialog_id, source);
-  if (d != nullptr) {
-    if (d->last_new_message_id.is_valid() && max_unavailable_message_id > d->last_new_message_id && from_update) {
-      // possible if the last unavailable message has already been deleted
-      LOG(INFO) << "Tried to set " << dialog_id << " max unavailable message to " << max_unavailable_message_id
-                << " from " << source << ", but last new message is " << d->last_new_message_id;
-      max_unavailable_message_id = d->last_new_message_id;
-    }
-
-    if (d->max_unavailable_message_id == max_unavailable_message_id) {
-      return;
-    }
-
-    if (max_unavailable_message_id.is_valid() && max_unavailable_message_id.is_yet_unsent()) {
-      LOG(ERROR) << "Tried to update " << dialog_id << " max unavailable message with " << max_unavailable_message_id
-                 << " from " << source;
-      return;
-    }
-    LOG(INFO) << "Set max unavailable message to " << max_unavailable_message_id << " in " << dialog_id << " from "
-              << source;
-
-    on_dialog_updated(dialog_id, "set_dialog_max_unavailable_message_id");
-
-    if (d->max_unavailable_message_id > max_unavailable_message_id) {
-      d->max_unavailable_message_id = max_unavailable_message_id;
-      return;
-    }
-
-    d->max_unavailable_message_id = max_unavailable_message_id;
-
-    auto message_ids = d->ordered_messages.find_older_messages(max_unavailable_message_id);
-
-    vector<int64> deleted_message_ids;
-    bool need_update_dialog_pos = false;
-    for (auto message_id : message_ids) {
-      if (message_id.is_yet_unsent()) {
-        continue;
-      }
-
-      auto m = get_message(d, message_id);
-      CHECK(m != nullptr);
-      CHECK(m->message_id <= max_unavailable_message_id);
-      CHECK(m->message_id == message_id);
-      auto message =
-          delete_message(d, message_id, !from_update, &need_update_dialog_pos, "set_dialog_max_unavailable_message_id");
-      CHECK(message.get() == m);
-      deleted_message_ids.push_back(m->message_id.get());
-    }
-
-    if (need_update_dialog_pos) {
-      send_update_chat_last_message(d, "set_dialog_max_unavailable_message_id");
-    }
-
-    send_update_delete_messages(dialog_id, std::move(deleted_message_ids), !from_update);
-
-    if (d->server_unread_count + d->local_unread_count > 0) {
-      read_history_inbox(d, max_unavailable_message_id, -1, "set_dialog_max_unavailable_message_id");
-    }
-  } else {
-    LOG(INFO) << "Receive max unavailable message in unknown " << dialog_id << " from " << source;
-  }
-}
-
-void MessagesManager::on_update_viewed_messages_timeout(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Expired timeout for updating of recently viewed messages in " << dialog_id;
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (d->open_count == 0) {
-    return;
-  }
-
-  auto it = dialog_viewed_messages_.find(dialog_id);
-  if (it == dialog_viewed_messages_.end() || !td_->online_manager_->is_online()) {
-    return;
-  }
-
-  vector<MessageId> viewed_message_ids;
-  for (const auto &message_it : it->second->message_id_to_view_id) {
-    viewed_message_ids.push_back(message_it.first);
-  }
-  process_viewed_message(d, viewed_message_ids, false);
-}
-
-void MessagesManager::process_viewed_message(Dialog *d, const vector<MessageId> &viewed_message_ids, bool is_first) {
-  auto dialog_id = d->dialog_id;
-  vector<MessageId> reaction_message_ids;
-  vector<MessageId> views_message_ids;
-  vector<MessageId> extended_media_message_ids;
-  int32 newest_message_date = 0;
-  for (auto message_id : viewed_message_ids) {
-    Message *m = get_message_force(d, message_id, "on_update_viewed_messages_timeout");
-    CHECK(m != nullptr);
-    CHECK(m->message_id.is_valid());
-    CHECK(m->message_id.is_server());
-    if (need_poll_message_reactions(d, m)) {
-      reaction_message_ids.push_back(m->message_id);
-    }
-    if (!is_first && m->view_count > 0) {
-      views_message_ids.push_back(m->message_id);
-    }
-    if (need_poll_message_content_extended_media(m->content.get())) {
-      extended_media_message_ids.push_back(m->message_id);
-    }
-    if (m->date > newest_message_date) {
-      newest_message_date = m->date;
-    }
-  }
-
-  if (!reaction_message_ids.empty()) {
-    td_->message_query_manager_->queue_message_reactions_reload(dialog_id, reaction_message_ids);
-  }
-  if (!views_message_ids.empty()) {
-    td_->message_query_manager_->view_messages(dialog_id, views_message_ids, false);
-  }
-  if (!extended_media_message_ids.empty()) {
-    td_->message_query_manager_->reload_message_extended_media(dialog_id, std::move(extended_media_message_ids));
-  }
-  if (td_->online_manager_->is_online()) {
-    int divisor = 5 - min(max(G()->unix_time() - newest_message_date, 0) / UPDATE_VIEWED_MESSAGES_PERIOD, 4);
-    update_viewed_messages_timeout_.add_timeout_in(dialog_id.get(), UPDATE_VIEWED_MESSAGES_PERIOD / divisor);
-  }
-}
-
-void MessagesManager::on_send_update_chat_read_inbox_timeout(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  if (postponed_chat_read_inbox_updates_.erase(dialog_id) > 0) {
-    send_update_chat_read_inbox(get_dialog(dialog_id), true, "on_send_update_chat_read_inbox_timeout");
-  }
-}
-
-int32 MessagesManager::get_message_date(const tl_object_ptr<telegram_api::Message> &message_ptr) {
-  switch (message_ptr->get_id()) {
-    case telegram_api::messageEmpty::ID:
-      return 0;
-    case telegram_api::message::ID: {
-      auto message = static_cast<const telegram_api::message *>(message_ptr.get());
-      return message->date_;
-    }
-    case telegram_api::messageService::ID: {
-      auto message = static_cast<const telegram_api::messageService *>(message_ptr.get());
-      return message->date_;
-    }
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-vector<UserId> MessagesManager::get_message_user_ids(const Message *m) const {
-  vector<UserId> user_ids;
-  if (m->sender_user_id.is_valid()) {
-    user_ids.push_back(m->sender_user_id);
-  }
-  if (m->via_bot_user_id.is_valid()) {
-    user_ids.push_back(m->via_bot_user_id);
-  }
-  if (m->via_business_bot_user_id.is_valid()) {
-    user_ids.push_back(m->via_business_bot_user_id);
-  }
-  if (m->forward_info != nullptr) {
-    m->forward_info->add_min_user_ids(user_ids);
-  }
-  append(user_ids, get_message_content_min_user_ids(td_, m->content.get()));
-  if (!m->replied_message_info.is_empty()) {
-    append(user_ids, m->replied_message_info.get_min_user_ids(td_));
-  }
-  return user_ids;
-}
-
-vector<ChannelId> MessagesManager::get_message_channel_ids(const Message *m) const {
-  vector<ChannelId> channel_ids;
-  if (m->sender_dialog_id.get_type() == DialogType::Channel) {
-    channel_ids.push_back(m->sender_dialog_id.get_channel_id());
-  }
-  if (m->forward_info != nullptr) {
-    m->forward_info->add_min_channel_ids(channel_ids);
-  }
-  append(channel_ids, get_message_content_min_channel_ids(td_, m->content.get()));
-  if (!m->replied_message_info.is_empty()) {
-    append(channel_ids, m->replied_message_info.get_min_channel_ids(td_));
-  }
-  return channel_ids;
-}
-
-void MessagesManager::ttl_read_history(Dialog *d, bool is_outgoing, MessageId from_message_id,
-                                       MessageId till_message_id, double view_date) {
-  CHECK(!from_message_id.is_scheduled());
-  CHECK(!till_message_id.is_scheduled());
-
-  // TODO: protect with log event
-  suffix_load_till_message_id(d, till_message_id,
-                              PromiseCreator::lambda([actor_id = actor_id(this), dialog_id = d->dialog_id, is_outgoing,
-                                                      from_message_id, till_message_id, view_date](Result<Unit>) {
-                                send_closure(actor_id, &MessagesManager::ttl_read_history_impl, dialog_id, is_outgoing,
-                                             from_message_id, till_message_id, view_date);
-                              }));
-}
-
-void MessagesManager::ttl_read_history_impl(DialogId dialog_id, bool is_outgoing, MessageId from_message_id,
-                                            MessageId till_message_id, double view_date) {
-  CHECK(dialog_id.get_type() == DialogType::SecretChat);
-  CHECK(!from_message_id.is_scheduled());
-  CHECK(!till_message_id.is_scheduled());
-
-  auto *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  auto now = Time::now();
-  for (auto it = d->ordered_messages.get_const_iterator(from_message_id);
-       *it && (*it)->get_message_id() >= till_message_id; --it) {
-    auto *m = get_message(d, (*it)->get_message_id());
-    CHECK(m != nullptr);
-    if (m->is_outgoing == is_outgoing) {
-      ttl_on_view(d, m, view_date, now);
-    }
-  }
-}
-
-void MessagesManager::ttl_on_view(const Dialog *d, Message *m, double view_date, double now) {
-  if (!m->ttl.is_empty() && m->ttl_expires_at == 0 && !m->message_id.is_scheduled() && !m->message_id.is_yet_unsent() &&
-      !m->is_failed_to_send && !m->is_content_secret) {
-    m->ttl_expires_at = m->ttl.get_input_ttl() + view_date;
-    ttl_register_message(d->dialog_id, m, now);
-    on_message_changed(d, m, true, "ttl_on_view");
-  }
-}
-
-bool MessagesManager::ttl_on_open(Dialog *d, Message *m, double now, bool is_local_read, int32 read_date) {
-  CHECK(!m->message_id.is_scheduled());
-  if (!m->ttl.is_empty() && m->ttl_expires_at == 0) {
-    int32 passed_after_read_time = 0;
-    auto can_destroy_immediately = [&] {
-      if (m->ttl.is_immediate()) {
-        return true;
-      }
-      if (is_local_read) {
-        return false;
-      }
-      if (read_date <= 0) {
-        return d->dialog_id.get_type() != DialogType::SecretChat;
-      }
-      passed_after_read_time = max(G()->unix_time() - read_date, 0);
-      if (m->ttl.get_input_ttl() <= passed_after_read_time) {
-        return true;
-      }
-      return false;
-    }();
-    if (can_destroy_immediately) {
-      on_message_ttl_expired(d, m);
-    } else {
-      m->ttl_expires_at = m->ttl.get_input_ttl() + now - passed_after_read_time;
-      ttl_register_message(d->dialog_id, m, now);
-    }
-    return true;
-  }
-  return false;
-}
-
-void MessagesManager::ttl_register_message(DialogId dialog_id, const Message *m, double now) {
-  CHECK(m != nullptr);
-  CHECK(m->ttl_expires_at != 0);
-  CHECK(!m->message_id.is_scheduled());
-
-  auto it_flag = ttl_nodes_.emplace(dialog_id, m->message_id, false);
-  CHECK(it_flag.second);
-  auto it = it_flag.first;
-
-  ttl_heap_.insert(m->ttl_expires_at, it->as_heap_node());
-  ttl_update_timeout(now);
-}
-
-void MessagesManager::ttl_period_register_message(DialogId dialog_id, const Message *m, double server_time) {
-  CHECK(m != nullptr);
-  CHECK(m->ttl_period != 0);
-  CHECK(!m->message_id.is_scheduled());
-
-  auto it_flag = ttl_nodes_.emplace(dialog_id, m->message_id, true);
-  CHECK(it_flag.second);
-  auto it = it_flag.first;
-
-  auto now = Time::now();
-  ttl_heap_.insert(now + (m->date + m->ttl_period - server_time), it->as_heap_node());
-  ttl_update_timeout(now);
-}
-
-void MessagesManager::ttl_unregister_message(DialogId dialog_id, const Message *m, const char *source) {
-  if (m->ttl_expires_at == 0) {
-    return;
-  }
-  CHECK(!m->message_id.is_scheduled());
-
-  auto it = ttl_nodes_.find(TtlNode(dialog_id, m->message_id, false));
-
-  // expect m->ttl.is_empty(), but m->ttl_expires_at > 0 from binlog
-  CHECK(it != ttl_nodes_.end());
-
-  auto *heap_node = it->as_heap_node();
-  if (heap_node->in_heap()) {
-    ttl_heap_.erase(heap_node);
-  }
-  ttl_nodes_.erase(it);
-  ttl_update_timeout(Time::now());
-}
-
-void MessagesManager::ttl_period_unregister_message(DialogId dialog_id, const Message *m) {
-  if (m->ttl_period == 0) {
-    return;
-  }
-  CHECK(!m->message_id.is_scheduled());
-
-  auto it = ttl_nodes_.find(TtlNode(dialog_id, m->message_id, true));
-
-  CHECK(it != ttl_nodes_.end());
-
-  auto *heap_node = it->as_heap_node();
-  if (heap_node->in_heap()) {
-    ttl_heap_.erase(heap_node);
-  }
-  ttl_nodes_.erase(it);
-  ttl_update_timeout(Time::now());
-}
-
-void MessagesManager::ttl_loop(double now) {
-  FlatHashMap<DialogId, std::vector<MessageId>, DialogIdHash> to_delete;
-  while (!ttl_heap_.empty() && ttl_heap_.top_key() < now) {
-    TtlNode *ttl_node = TtlNode::from_heap_node(ttl_heap_.pop());
-    auto message_full_id = ttl_node->message_full_id_;
-    auto dialog_id = message_full_id.get_dialog_id();
-    CHECK(dialog_id.is_valid());
-    if (dialog_id.get_type() == DialogType::SecretChat || ttl_node->by_ttl_period_) {
-      to_delete[dialog_id].push_back(message_full_id.get_message_id());
-    } else {
-      auto d = get_dialog(dialog_id);
-      CHECK(d != nullptr);
-      auto m = get_message(d, message_full_id.get_message_id());
-      CHECK(m != nullptr);
-      on_message_ttl_expired(d, m);
-      on_message_changed(d, m, true, "ttl_loop");
-    }
-  }
-  for (auto &it : to_delete) {
-    delete_dialog_messages(it.first, it.second, false, "ttl_loop");
-  }
-  ttl_update_timeout(now);
-}
-
-void MessagesManager::ttl_update_timeout(double now) {
-  if (ttl_heap_.empty()) {
-    if (!ttl_slot_.empty()) {
-      ttl_slot_.cancel_timeout();
-    }
-    return;
-  }
-  ttl_slot_.set_event(EventCreator::yield(actor_id()));
-  ttl_slot_.set_timeout_in(ttl_heap_.top_key() - now);
-}
-
-void MessagesManager::on_message_ttl_expired(Dialog *d, Message *m) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  CHECK(m->ttl.is_valid());
-  CHECK(d->dialog_id.get_type() != DialogType::SecretChat);
-  ttl_unregister_message(d->dialog_id, m, "on_message_ttl_expired");
-  unregister_message_content(td_, m->content.get(), {d->dialog_id, m->message_id}, "on_message_ttl_expired");
-  remove_message_file_sources(d->dialog_id, m, "on_message_ttl_expired");
-  on_message_ttl_expired_impl(d, m, true);
-  register_message_content(td_, m->content.get(), {d->dialog_id, m->message_id}, "on_message_ttl_expired");
-  send_update_message_content(d, m, true, "on_message_ttl_expired");
-  // the caller must call on_message_changed
-}
-
-void MessagesManager::on_message_ttl_expired_impl(Dialog *d, Message *m, bool is_message_in_dialog) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  CHECK(m->message_id.is_valid());
-  CHECK(!m->message_id.is_yet_unsent());
-  CHECK(m->ttl.is_valid());
-  CHECK(d->dialog_id.get_type() != DialogType::SecretChat);
-  delete_message_files(d->dialog_id, m);
-  update_expired_message_content(m->content);
-  m->ttl = {};
-  m->ttl_expires_at = 0;
-  if (m->reply_markup != nullptr) {
-    if (m->reply_markup->type != ReplyMarkup::Type::InlineKeyboard) {
-      if (d->reply_markup_message_id == m->message_id) {
-        set_dialog_reply_markup(d, MessageId());
-      }
-      m->had_reply_markup = true;
-    }
-    m->reply_markup = nullptr;
-  }
-  remove_message_notification_id(d, m, true, true);
-  update_message_contains_unread_mention(d, m, false, "on_message_ttl_expired_impl");
-  remove_message_unread_reactions(d, m, "on_message_ttl_expired_impl");
-  set_message_reply(d, m, MessageInputReplyTo(), is_message_in_dialog);
-  m->noforwards = false;
-  m->contains_mention = false;
-  m->linked_top_thread_message_id = MessageId();
-  m->is_content_secret = false;
-  m->invert_media = false;
-}
-
-void MessagesManager::loop() {
-  auto token = get_link_token();
-  if (token == YieldType::TtlDb) {
-    ttl_db_loop();
-  } else {
-    ttl_loop(Time::now());
-  }
-}
-
-void MessagesManager::tear_down() {
-  parent_.reset();
-
-  LOG(DEBUG) << "Have " << dialogs_.calc_size() << " chats with " << added_message_count_ << " messages to free";
-}
-
-void MessagesManager::hangup() {
-  postponed_channel_updates_.clear();
-
-  if (!G()->use_message_database()) {
-    while (!being_uploaded_files_.empty()) {
-      auto it = being_uploaded_files_.begin();
-      auto message_full_id = it->second.message_full_id;
-      being_uploaded_files_.erase(it);
-      if (message_full_id.get_message_id().is_yet_unsent()) {
-        fail_send_message(message_full_id, Global::request_aborted_error());
-      }
-    }
-    while (!being_uploaded_thumbnails_.empty()) {
-      auto it = being_uploaded_thumbnails_.begin();
-      auto message_full_id = it->second.message_full_id;
-      being_uploaded_thumbnails_.erase(it);
-      if (message_full_id.get_message_id().is_yet_unsent()) {
-        fail_send_message(message_full_id, Global::request_aborted_error());
-      }
-    }
-    while (!being_loaded_secret_thumbnails_.empty()) {
-      auto it = being_loaded_secret_thumbnails_.begin();
-      auto message_full_id = it->second.message_full_id;
-      being_loaded_secret_thumbnails_.erase(it);
-      if (message_full_id.get_message_id().is_yet_unsent()) {
-        fail_send_message(message_full_id, Global::request_aborted_error());
-      }
-    }
-    while (!yet_unsent_media_queues_.empty()) {
-      auto it = yet_unsent_media_queues_.begin();
-      auto queue = std::move(it->second);
-      yet_unsent_media_queues_.erase(it);
-      for (auto &promise_it : queue.queue_) {
-        auto message_id = promise_it.first;
-        if (message_id.is_yet_unsent()) {
-          fail_send_message({queue.dialog_id_, message_id}, Global::request_aborted_error());
-        }
-      }
-    }
-    while (!being_sent_messages_.empty()) {
-      on_send_message_fail(being_sent_messages_.begin()->first, Global::request_aborted_error());
-    }
-    while (!update_message_ids_.empty()) {
-      auto it = update_message_ids_.begin();
-      auto message_full_id = MessageFullId(it->first.get_dialog_id(), it->second);
-      update_message_ids_.erase(it);
-
-      // the message was sent successfully, but can't be added yet
-      fail_send_message(message_full_id, Global::request_aborted_error());
-    }
-    while (!update_scheduled_message_ids_.empty()) {
-      auto it = update_scheduled_message_ids_.begin();
-      auto dialog_id = it->first;
-      auto message_ids = std::move(it->second);
-      update_scheduled_message_ids_.erase(it);
-      for (auto &message_id_it : message_ids) {
-        // the message was sent successfully, but can't be added yet
-        fail_send_message({dialog_id, message_id_it.second}, Global::request_aborted_error());
-      }
-    }
-  }
-
-  fail_promises(load_active_live_location_messages_queries_, Global::request_aborted_error());
-  fail_promise_map(get_dialog_queries_, Global::request_aborted_error());
-  fail_promise_map(load_scheduled_messages_from_database_queries_, Global::request_aborted_error());
-  fail_promise_map(run_after_get_channel_difference_, Global::request_aborted_error());
-  fail_promise_map(get_history_queries_, Global::request_aborted_error());
-  while (!pending_channel_on_get_dialogs_.empty()) {
-    auto it = pending_channel_on_get_dialogs_.begin();
-    auto queries = std::move(it->second);
-    pending_channel_on_get_dialogs_.erase(it);
-    for (auto &query : queries) {
-      query.promise.set_error(Global::request_aborted_error());
-    }
-  }
-  while (!get_dialogs_tasks_.empty()) {
-    auto it = get_dialogs_tasks_.begin();
-    auto promise = std::move(it->second.promise);
-    get_dialogs_tasks_.erase(it);
-    promise.set_error(Global::request_aborted_error());
-  }
-
-  stop();
-}
-
-void MessagesManager::start_up() {
-  init();
-}
-
-void MessagesManager::create_folders(int source) {
-  LOG(INFO) << "Create folders";
-  create_folders_source_ = source;
-  dialog_folders_[FolderId::main()].folder_id = FolderId::main();
-  dialog_folders_[FolderId::archive()].folder_id = FolderId::archive();
-
-  add_dialog_list(DialogListId(FolderId::main()));
-  add_dialog_list(DialogListId(FolderId::archive()));
-  create_folders_source_ = source + 1;
-}
-
-void MessagesManager::init() {
-  if (is_inited_) {
-    return;
-  }
-  is_inited_ = true;
-
-  td_->notification_settings_manager_->init();  // load scope notification settings
-  td_->reaction_manager_->init();               // load active reactions
-
-  start_time_ = Time::now();
-  last_channel_pts_jump_warning_time_ = start_time_ - 3600;
-
-  bool was_authorized_user = td_->auth_manager_->was_authorized() && !td_->auth_manager_->is_bot();
-  if (was_authorized_user) {
-    create_folders(10);  // ensure that Main and Archive dialog lists are created
-  }
-  authorization_date_ = td_->option_manager_->get_option_integer("authorization_date");
-
-  td_->dialog_filter_manager_->init();  // load dialog filters
-
-  if (G()->use_message_database() && was_authorized_user) {
-    // erase old keys
-    G()->td_db()->get_binlog_pmc()->erase("last_server_dialog_date");
-    G()->td_db()->get_binlog_pmc()->erase("unread_message_count");
-    G()->td_db()->get_binlog_pmc()->erase("unread_dialog_count");
-
-    auto last_database_server_dialog_dates = G()->td_db()->get_binlog_pmc()->prefix_get("last_server_dialog_date");
-    for (auto &it : last_database_server_dialog_dates) {
-      auto r_folder_id = to_integer_safe<int32>(it.first);
-      if (r_folder_id.is_error()) {
-        LOG(ERROR) << "Can't parse folder ID from " << it.first;
-        continue;
-      }
-
-      string order_str;
-      string dialog_id_str;
-      std::tie(order_str, dialog_id_str) = split(it.second);
-
-      auto r_order = to_integer_safe<int64>(order_str);
-      auto r_dialog_id = to_integer_safe<int64>(dialog_id_str);
-      if (r_order.is_error() || r_dialog_id.is_error()) {
-        LOG(ERROR) << "Can't parse " << it.second;
-      } else {
-        FolderId folder_id(r_folder_id.ok());
-        auto *folder = get_dialog_folder(folder_id);
-        CHECK(folder != nullptr);
-        DialogDate dialog_date(r_order.ok(), DialogId(r_dialog_id.ok()));
-        if (dialog_date.get_date() == 0 && dialog_date != MAX_DIALOG_DATE) {
-          LOG(ERROR) << "Ignore incorrect last database server dialog date " << dialog_date << " in " << folder_id;
-        } else {
-          if (folder->last_database_server_dialog_date_ < dialog_date) {
-            folder->last_database_server_dialog_date_ = dialog_date;
-          }
-          LOG(INFO) << "Loaded last_database_server_dialog_date_ " << folder->last_database_server_dialog_date_
-                    << " in " << folder_id;
-        }
-      }
-    }
-
-    auto sponsored_dialog_id_string = G()->td_db()->get_binlog_pmc()->get("sponsored_dialog_id");
-    if (!sponsored_dialog_id_string.empty()) {
-      auto dialog_id_source = split(Slice(sponsored_dialog_id_string));
-      auto r_dialog_id = to_integer_safe<int64>(dialog_id_source.first);
-      auto r_source = DialogSource::unserialize(dialog_id_source.second);
-      if (r_dialog_id.is_error() || r_source.is_error()) {
-        LOG(ERROR) << "Can't parse " << sponsored_dialog_id_string;
-      } else {
-        DialogId dialog_id(r_dialog_id.ok());
-
-        const Dialog *d = get_dialog_force(dialog_id, "init");
-        if (d != nullptr) {
-          LOG(INFO) << "Loaded sponsored " << dialog_id;
-          add_sponsored_dialog(d, r_source.move_as_ok());
-        } else {
-          LOG(ERROR) << "Can't load " << dialog_id;
-        }
-      }
-    }
-
-    auto pinned_dialog_ids = G()->td_db()->get_binlog_pmc()->prefix_get("pinned_dialog_ids");
-    for (auto &it : pinned_dialog_ids) {
-      auto r_folder_id = to_integer_safe<int32>(it.first);
-      if (r_folder_id.is_error()) {
-        LOG(ERROR) << "Can't parse folder ID from " << it.first;
-        continue;
-      }
-      FolderId folder_id(r_folder_id.ok());
-
-      auto r_dialog_ids = transform(full_split(Slice(it.second), ','), [](Slice str) -> Result<DialogId> {
-        TRY_RESULT(dialog_id_int, to_integer_safe<int64>(str));
-        DialogId dialog_id(dialog_id_int);
-        if (!dialog_id.is_valid()) {
-          return Status::Error("Have invalid dialog ID");
-        }
-        return dialog_id;
-      });
-      if (any_of(r_dialog_ids, [](const auto &r_dialog_id) { return r_dialog_id.is_error(); })) {
-        LOG(ERROR) << "Can't parse " << it.second;
-        reload_pinned_dialogs(DialogListId(folder_id), Auto());
-      } else {
-        auto *list = get_dialog_list(DialogListId(folder_id));
-        CHECK(list != nullptr);
-        CHECK(list->pinned_dialogs_.empty());
-        for (auto &r_dialog_id : reversed(r_dialog_ids)) {
-          auto dialog_id = r_dialog_id.move_as_ok();
-          if (!dialog_id.is_valid()) {
-            LOG(ERROR) << "Loaded " << dialog_id << " as a pinned dialog";
-            continue;
-          }
-          auto order = get_next_pinned_dialog_order();
-          list->pinned_dialogs_.emplace_back(order, dialog_id);
-          list->pinned_dialog_id_orders_.emplace(dialog_id, order);
-        }
-        std::reverse(list->pinned_dialogs_.begin(), list->pinned_dialogs_.end());
-        list->are_pinned_dialogs_inited_ = true;
-        update_list_last_pinned_dialog_date(*list);
-
-        LOG(INFO) << "Loaded pinned chats " << list->pinned_dialogs_ << " in " << folder_id;
-      }
-    }
-
-    auto unread_message_counts = G()->td_db()->get_binlog_pmc()->prefix_get("unread_message_count");
-    for (auto &it : unread_message_counts) {
-      auto r_dialog_list_id = to_integer_safe<int64>(it.first);
-      if (r_dialog_list_id.is_error()) {
-        LOG(ERROR) << "Can't parse dialog list ID from " << it.first;
-        continue;
-      }
-      string total_count;
-      string muted_count;
-      std::tie(total_count, muted_count) = split(it.second);
-
-      auto r_total_count = to_integer_safe<int32>(total_count);
-      auto r_muted_count = to_integer_safe<int32>(muted_count);
-      if (r_total_count.is_error() || r_muted_count.is_error()) {
-        LOG(ERROR) << "Can't parse " << it.second;
-      } else {
-        DialogListId dialog_list_id(r_dialog_list_id.ok());
-        auto *list = get_dialog_list(dialog_list_id);
-        if (list != nullptr) {
-          list->unread_message_total_count_ = r_total_count.ok();
-          list->unread_message_muted_count_ = r_muted_count.ok();
-          list->is_message_unread_count_inited_ = true;
-          send_update_unread_message_count(*list, DialogId(), true, "load unread_message_count", true);
-        } else {
-          G()->td_db()->get_binlog_pmc()->erase("unread_message_count" + it.first);
-        }
-      }
-    }
-
-    auto unread_dialog_counts = G()->td_db()->get_binlog_pmc()->prefix_get("unread_dialog_count");
-    for (auto &it : unread_dialog_counts) {
-      auto r_dialog_list_id = to_integer_safe<int64>(it.first);
-      if (r_dialog_list_id.is_error()) {
-        LOG(ERROR) << "Can't parse dialog list ID from " << it.first;
-        continue;
-      }
-
-      auto counts = transform(full_split(Slice(it.second)), [](Slice str) { return to_integer_safe<int32>(str); });
-      if ((counts.size() != 4 && counts.size() != 6) || any_of(counts, [](const auto &c) { return c.is_error(); })) {
-        LOG(ERROR) << "Can't parse " << it.second;
-      } else {
-        DialogListId dialog_list_id(r_dialog_list_id.ok());
-        auto *list = get_dialog_list(dialog_list_id);
-        if (list != nullptr) {
-          list->unread_dialog_total_count_ = counts[0].ok();
-          list->unread_dialog_muted_count_ = counts[1].ok();
-          list->unread_dialog_marked_count_ = counts[2].ok();
-          list->unread_dialog_muted_marked_count_ = counts[3].ok();
-          if (counts.size() == 6) {
-            list->server_dialog_total_count_ = counts[4].ok();
-            list->secret_chat_total_count_ = counts[5].ok();
-          }
-          if (list->server_dialog_total_count_ == -1) {
-            repair_server_dialog_total_count(dialog_list_id);
-          }
-          if (list->secret_chat_total_count_ == -1) {
-            repair_secret_chat_total_count(dialog_list_id);
-          }
-          list->is_dialog_unread_count_inited_ = true;
-          send_update_unread_chat_count(*list, DialogId(), true, "load unread_dialog_count", true);
-        } else {
-          G()->td_db()->get_binlog_pmc()->erase("unread_dialog_count" + it.first);
-        }
-      }
-    }
-
-    load_active_live_location_messages(Promise<Unit>());
-  } else if (!td_->auth_manager_->is_bot()) {
-    G()->td_db()->get_binlog_pmc()->erase_by_prefix("pinned_dialog_ids");
-    G()->td_db()->get_binlog_pmc()->erase_by_prefix("last_server_dialog_date");
-    G()->td_db()->get_binlog_pmc()->erase_by_prefix("unread_message_count");
-    G()->td_db()->get_binlog_pmc()->erase_by_prefix("unread_dialog_count");
-    G()->td_db()->get_binlog_pmc()->erase("sponsored_dialog_id");
-    G()->td_db()->get_binlog_pmc()->erase("fetched_marks_as_unread");
-  }
-  G()->td_db()->get_binlog_pmc()->erase("dialog_pinned_current_order");
-
-  if (G()->use_message_database()) {
-    ttl_db_loop();
-  }
-
-  load_calls_db_state();
-
-  auto auth_notification_ids_string = G()->td_db()->get_binlog_pmc()->get("auth_notification_ids");
-  if (!auth_notification_ids_string.empty()) {
-    VLOG(notifications) << "Loaded auth_notification_ids = " << auth_notification_ids_string;
-    auto stored_ids = full_split(auth_notification_ids_string, ',');
-    CHECK(stored_ids.size() % 2 == 0);
-    bool is_changed = false;
-    auto min_date = G()->unix_time() - AUTH_NOTIFICATION_ID_CACHE_TIME;
-    for (size_t i = 0; i < stored_ids.size(); i += 2) {
-      auto date = to_integer_safe<int32>(stored_ids[i + 1]).ok();
-      if (date < min_date || stored_ids[i].empty()) {
-        is_changed = true;
-        continue;
-      }
-      if (auth_notification_id_date_.size() == MAX_SAVED_AUTH_NOTIFICATION_IDS) {
-        is_changed = true;
-        break;
-      }
-      auth_notification_id_date_.emplace(std::move(stored_ids[i]), date);
-    }
-    if (is_changed) {
-      save_auth_notification_ids();
-    }
-  }
-}
-
-void MessagesManager::on_authorization_success() {
-  CHECK(td_->auth_manager_->is_authorized());
-  authorization_date_ = td_->option_manager_->get_option_integer("authorization_date");
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  create_folders(20);
-}
-
-void MessagesManager::ttl_db_loop() {
-  if (ttl_db_has_query_) {
-    return;
-  }
-
-  auto now = Time::now();
-  if (now < ttl_db_next_request_time_) {
-    ttl_db_slot_.set_event(EventCreator::yield(actor_shared(this, YieldType::TtlDb)));
-    auto wakeup_in = ttl_db_next_request_time_ - now;
-    ttl_db_slot_.set_timeout_in(wakeup_in);
-    LOG(INFO) << "Set ttl_db timeout in " << wakeup_in;
-    return;
-  }
-
-  ttl_db_has_query_ = true;
-  LOG(INFO) << "Send ttl_db query with limit " << ttl_db_next_limit_;
-  G()->td_db()->get_message_db_async()->get_expiring_messages(
-      G()->unix_time() - 1, ttl_db_next_limit_,
-      PromiseCreator::lambda([actor_id = actor_id(this)](Result<std::vector<MessageDbMessage>> result) {
-        send_closure(actor_id, &MessagesManager::ttl_db_on_result, std::move(result), false);
-      }));
-}
-
-void MessagesManager::ttl_db_on_result(Result<std::vector<MessageDbMessage>> r_result, bool dummy) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(r_result.is_ok());
-  auto result = r_result.move_as_ok();
-  ttl_db_has_query_ = false;
-
-  int32 next_request_delay;
-  if (result.size() == static_cast<size_t>(ttl_db_next_limit_)) {
-    CHECK(ttl_db_next_limit_ < (1 << 30));
-    ttl_db_next_limit_ *= 2;
-    next_request_delay = 1;
-  } else {
-    ttl_db_next_limit_ = DEFAULT_LOADED_EXPIRED_MESSAGES;
-    next_request_delay = Random::fast(3000, 4200);
-  }
-  ttl_db_next_request_time_ = Time::now() + next_request_delay;
-
-  LOG(INFO) << "Receive " << result.size() << " expired messages from ttl_db with next request in "
-            << next_request_delay << " seconds";
-  for (auto &dialog_message : result) {
-    on_get_message_from_database(dialog_message, false, "ttl_db_on_result");
-  }
-  ttl_db_loop();
-}
-
-void MessagesManager::on_send_secret_message_error(int64 random_id, Status error, Promise<Unit> promise) {
-  promise.set_value(Unit());  // TODO: set after error is saved
-
-  auto it = being_sent_messages_.find(random_id);
-  if (it != being_sent_messages_.end()) {
-    auto message_full_id = it->second;
-    auto *m = get_message(message_full_id);
-    if (m != nullptr) {
-      auto file_upload_id = get_message_send_file_upload_id(message_full_id.get_dialog_id(), m, -1);
-      if (file_upload_id.is_valid()) {
-        if (G()->close_flag() && G()->use_message_database()) {
-          // do not send error, message will be re-sent after restart
-          return;
-        }
-        auto bad_parts = FileManager::get_missing_file_parts(error);
-        if (!bad_parts.empty()) {
-          return on_send_message_file_error(random_id, 0, std::move(bad_parts));
-        }
-
-        td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id, error);
-      }
-    }
-  }
-
-  on_send_message_fail(random_id, std::move(error));
-}
-
-void MessagesManager::on_send_secret_message_success(int64 random_id, MessageId message_id, int32 date,
-                                                     unique_ptr<EncryptedFile> file, Promise<Unit> promise) {
-  promise.set_value(Unit());  // TODO: set after message is saved
-
-  FileId new_file_id;
-  if (file != nullptr) {
-    if (!DcId::is_valid(file->dc_id_)) {
-      LOG(ERROR) << "Wrong dc_id = " << file->dc_id_ << " in file " << *file;
-    } else {
-      DialogId owner_dialog_id;
-      auto it = being_sent_messages_.find(random_id);
-      if (it != being_sent_messages_.end()) {
-        owner_dialog_id = it->second.get_dialog_id();
-      }
-
-      new_file_id = td_->file_manager_->register_remote(
-          FullRemoteFileLocation(FileType::Encrypted, file->id_, file->access_hash_, DcId::internal(file->dc_id_), ""),
-          FileLocationSource::FromServer, owner_dialog_id, 0, file->size_, to_string(static_cast<uint64>(file->id_)));
-    }
-  }
-
-  on_send_message_success(random_id, message_id, date, 0, new_file_id, "on_send_secret_message_success");
-}
-
-void MessagesManager::delete_secret_messages(SecretChatId secret_chat_id, std::vector<int64> random_ids,
-                                             Promise<Unit> promise) {
-  LOG(DEBUG) << "On delete messages in " << secret_chat_id << " with random_ids " << random_ids;
-  CHECK(secret_chat_id.is_valid());
-
-  DialogId dialog_id(secret_chat_id);
-  if (!have_dialog_force(dialog_id, "delete_secret_messages")) {
-    LOG(ERROR) << "Ignore delete secret messages in unknown " << dialog_id;
-    promise.set_value(Unit());
-    return;
-  }
-
-  auto pending_secret_message = make_unique<PendingSecretMessage>();
-  pending_secret_message->success_promise = std::move(promise);
-  pending_secret_message->type = PendingSecretMessage::Type::DeleteMessages;
-  pending_secret_message->dialog_id = dialog_id;
-  pending_secret_message->random_ids = std::move(random_ids);
-
-  add_secret_message(std::move(pending_secret_message));
-}
-
-void MessagesManager::finish_delete_secret_messages(DialogId dialog_id, std::vector<int64> random_ids,
-                                                    Promise<Unit> promise) {
-  LOG(INFO) << "Delete messages with random_ids " << random_ids << " in " << dialog_id;
-  promise.set_value(Unit());  // TODO: set after event is saved
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  vector<MessageId> to_delete_message_ids;
-  for (auto &random_id : random_ids) {
-    auto message_id = get_message_id_by_random_id(d, random_id, "finish_delete_secret_messages");
-    if (!message_id.is_valid()) {
-      LOG(INFO) << "Can't find message with random_id " << random_id;
-      continue;
-    }
-    const Message *m = get_message(d, message_id);
-    CHECK(m != nullptr);
-    if (!is_service_message_content(m->content->get_type())) {
-      to_delete_message_ids.push_back(message_id);
-    } else {
-      LOG(INFO) << "Skip deletion of service " << message_id;
-    }
-  }
-  delete_dialog_messages(d, to_delete_message_ids, true, "finish_delete_secret_messages");
-}
-
-void MessagesManager::delete_secret_chat_history(SecretChatId secret_chat_id, bool remove_from_dialog_list,
-                                                 MessageId last_message_id, Promise<Unit> promise) {
-  LOG(DEBUG) << "Delete history in " << secret_chat_id << " up to " << last_message_id;
-  CHECK(secret_chat_id.is_valid());
-  CHECK(!last_message_id.is_scheduled());
-
-  DialogId dialog_id(secret_chat_id);
-  if (!have_dialog_force(dialog_id, "delete_secret_chat_history")) {
-    LOG(ERROR) << "Ignore delete history in unknown " << dialog_id;
-    promise.set_value(Unit());
-    return;
-  }
-
-  auto pending_secret_message = make_unique<PendingSecretMessage>();
-  pending_secret_message->success_promise = std::move(promise);
-  pending_secret_message->type = PendingSecretMessage::Type::DeleteHistory;
-  pending_secret_message->dialog_id = dialog_id;
-  pending_secret_message->last_message_id = last_message_id;
-  pending_secret_message->remove_from_dialog_list = remove_from_dialog_list;
-
-  add_secret_message(std::move(pending_secret_message));
-}
-
-void MessagesManager::finish_delete_secret_chat_history(DialogId dialog_id, bool remove_from_dialog_list,
-                                                        MessageId last_message_id, Promise<Unit> promise) {
-  LOG(DEBUG) << "Delete history in " << dialog_id << " up to " << last_message_id;
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  // TODO: probably last_message_id is not needed
-  delete_all_dialog_messages(d, remove_from_dialog_list, true);
-  promise.set_value(Unit());  // TODO: set after event is saved
-}
-
-void MessagesManager::read_secret_chat_outbox(SecretChatId secret_chat_id, int32 up_to_date, int32 read_date) {
-  if (!secret_chat_id.is_valid()) {
-    LOG(ERROR) << "Receive read secret chat outbox in the invalid " << secret_chat_id;
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  auto dialog_id = DialogId(secret_chat_id);
-  Dialog *d = get_dialog_force(dialog_id, "read_secret_chat_outbox");
-  if (d == nullptr) {
-    return;
-  }
-
-  if (read_date > 0) {
-    auto user_id = td_->user_manager_->get_secret_chat_user_id(secret_chat_id);
-    if (user_id.is_valid()) {
-      td_->user_manager_->on_update_user_local_was_online(user_id, read_date);
-    }
-  }
-
-  // TODO: protect with log event
-  suffix_load_till_date(
-      d, up_to_date,
-      PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, up_to_date, read_date](Result<Unit> result) {
-        send_closure(actor_id, &MessagesManager::read_secret_chat_outbox_inner, dialog_id, up_to_date, read_date);
-      }));
-}
-
-void MessagesManager::read_secret_chat_outbox_inner(DialogId dialog_id, int32 up_to_date, int32 read_date) {
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  auto end = d->ordered_messages.get_const_iterator(MessageId::max());
-  while (*end &&
-         (get_message(d, (*end)->get_message_id())->date > up_to_date || (*end)->get_message_id().is_yet_unsent())) {
-    --end;
-  }
-  if (!*end) {
-    LOG(INFO) << "Ignore read_secret_chat_outbox in " << dialog_id << " at " << up_to_date
-              << ": no messages with such date are known";
-    return;
-  }
-  auto max_message_id = (*end)->get_message_id();
-  read_history_outbox(d, max_message_id, read_date);
-}
-
-void MessagesManager::open_secret_message(SecretChatId secret_chat_id, int64 random_id, Promise<Unit> promise) {
-  promise.set_value(Unit());  // TODO: set after event is saved
-  DialogId dialog_id(secret_chat_id);
-  Dialog *d = get_dialog_force(dialog_id, "open_secret_message");
-  if (d == nullptr) {
-    LOG(ERROR) << "Ignore opening secret chat message in unknown " << dialog_id;
-    return;
-  }
-
-  auto message_id = get_message_id_by_random_id(d, random_id, "open_secret_message");
-  if (!message_id.is_valid()) {
-    return;
-  }
-  Message *m = get_message(d, message_id);
-  CHECK(m != nullptr);
-  if (m->message_id.is_yet_unsent() || m->is_failed_to_send || !m->is_outgoing) {
-    LOG(ERROR) << "Peer has opened wrong " << message_id << " in " << dialog_id;
-    return;
-  }
-
-  read_message_content(d, m, false, 0, "open_secret_message");
-}
-
-void MessagesManager::on_update_secret_chat_state(SecretChatId secret_chat_id, SecretChatState state) {
-  on_dialog_access_updated(DialogId(secret_chat_id));
-  if (state == SecretChatState::Closed && !td_->auth_manager_->is_bot()) {
-    DialogId dialog_id(secret_chat_id);
-    Dialog *d = get_dialog_force(dialog_id, "on_update_secret_chat_state");
-    if (d != nullptr && d->notification_info != nullptr) {
-      if (d->notification_info->new_secret_chat_notification_id_.is_valid()) {
-        remove_new_secret_chat_notification(d, true);
-      }
-      if (d->notification_info->message_notification_group_.is_valid() &&
-          get_dialog_pending_notification_count(d, false) == 0 &&
-          !d->notification_info->message_notification_group_.get_last_notification_id().is_valid()) {
-        d->notification_info->message_notification_group_.try_reuse();
-        on_dialog_updated(d->dialog_id, "on_update_secret_chat_state");
-      }
-      CHECK(!d->notification_info->mention_notification_group_
-                 .is_valid());  // there can't be unread mentions in secret chats
-    }
-  }
-}
-
-void MessagesManager::on_get_secret_message(SecretChatId secret_chat_id, UserId user_id, MessageId message_id,
-                                            int32 date, unique_ptr<EncryptedFile> file,
-                                            tl_object_ptr<secret_api::decryptedMessage> message,
-                                            Promise<Unit> promise) {
-  LOG(DEBUG) << "On get " << to_string(message);
-  CHECK(message != nullptr);
-  CHECK(secret_chat_id.is_valid());
-  CHECK(user_id.is_valid());
-  CHECK(message_id.is_valid());
-  CHECK(date > 0);
-
-  if (message->random_id_ == 0) {
-    LOG(ERROR) << "Ignore secret message with random_id == 0";
-    promise.set_error(Status::Error(400, "Invalid random_id"));
-    return;
-  }
-
-  auto pending_secret_message = make_unique<PendingSecretMessage>();
-  pending_secret_message->success_promise = std::move(promise);
-  MessageInfo &message_info = pending_secret_message->message_info;
-  message_info.dialog_id = DialogId(secret_chat_id);
-  message_info.message_id = message_id;
-  message_info.sender_user_id = user_id;
-  message_info.date = date;
-  message_info.random_id = message->random_id_;
-  message_info.ttl = MessageSelfDestructType(message->ttl_, false);
-  message_info.has_unread_content = true;
-  message_info.is_silent = message->silent_;
-  message_info.media_album_id = message->grouped_id_;
-
-  Dialog *d = get_dialog_force(message_info.dialog_id, "on_get_secret_message");
-  if (d == nullptr && td_->dialog_manager_->have_dialog_info_force(message_info.dialog_id, "on_get_secret_message")) {
-    force_create_dialog(message_info.dialog_id, "on_get_secret_message", true, true);
-    d = get_dialog(message_info.dialog_id);
-  }
-  if (d == nullptr) {
-    LOG(ERROR) << "Ignore secret message in unknown " << message_info.dialog_id;
-    pending_secret_message->success_promise.set_error(Status::Error(500, "Chat not found"));
-    return;
-  }
-
-  pending_secret_message_ids_[message_info.dialog_id][message_info.random_id] = message_id;
-
-  pending_secret_message->load_data_multipromise.add_promise(Auto());
-  auto lock_promise = pending_secret_message->load_data_multipromise.get_promise();
-
-  if (message->reply_to_random_id_ != 0) {
-    auto reply_to_message_id = get_message_id_by_random_id(d, message->reply_to_random_id_, "on_get_secret_message");
-    if (!reply_to_message_id.is_valid()) {
-      auto dialog_it = pending_secret_message_ids_.find(message_info.dialog_id);
-      if (dialog_it != pending_secret_message_ids_.end()) {
-        auto message_it = dialog_it->second.find(message->reply_to_random_id_);
-        if (message_it != dialog_it->second.end()) {
-          reply_to_message_id = message_it->second;
-        }
-      }
-    }
-    message_info.reply_header.replied_message_info_ = RepliedMessageInfo::legacy(reply_to_message_id);
-  }
-
-  if (!clean_input_string(message->via_bot_name_)) {
-    LOG(WARNING) << "Receive invalid bot username " << message->via_bot_name_;
-    message->via_bot_name_.clear();
-  }
-  if (!message->via_bot_name_.empty()) {
-    auto request_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), via_bot_username = message->via_bot_name_, message_info_ptr = &message_info,
-         promise = pending_secret_message->load_data_multipromise.get_promise()](Unit) mutable {
-          send_closure(actor_id, &MessagesManager::on_resolve_secret_chat_message_via_bot_username, via_bot_username,
-                       message_info_ptr, std::move(promise));
-        });
-    td_->dialog_manager_->search_public_dialog(message->via_bot_name_, false, std::move(request_promise));
-  }
-
-  message_info.content = get_secret_message_content(
-      td_, std::move(message->message_), std::move(file), std::move(message->media_), std::move(message->entities_),
-      message_info.dialog_id, pending_secret_message->load_data_multipromise,
-      td_->user_manager_->is_user_premium(user_id));
-
-  add_secret_message(std::move(pending_secret_message), std::move(lock_promise));
-}
-
-void MessagesManager::on_resolve_secret_chat_message_via_bot_username(const string &via_bot_username,
-                                                                      MessageInfo *message_info_ptr,
-                                                                      Promise<Unit> &&promise) {
-  if (!G()->close_flag()) {
-    auto dialog_id = td_->dialog_manager_->get_resolved_dialog_by_username(via_bot_username);
-    if (dialog_id.get_type() == DialogType::User) {
-      auto user_id = dialog_id.get_user_id();
-      auto r_bot_data = td_->user_manager_->get_bot_data(user_id);
-      if (r_bot_data.is_ok() && r_bot_data.ok().is_inline) {
-        message_info_ptr->via_bot_user_id = user_id;
-      }
-    }
-  }
-  promise.set_value(Unit());
-}
-
-void MessagesManager::on_secret_chat_screenshot_taken(SecretChatId secret_chat_id, UserId user_id, MessageId message_id,
-                                                      int32 date, int64 random_id, Promise<Unit> promise) {
-  LOG(DEBUG) << "On screenshot taken in " << secret_chat_id;
-  CHECK(secret_chat_id.is_valid());
-  CHECK(user_id.is_valid());
-  CHECK(message_id.is_valid());
-  CHECK(date > 0);
-
-  auto pending_secret_message = make_unique<PendingSecretMessage>();
-  pending_secret_message->success_promise = std::move(promise);
-  MessageInfo &message_info = pending_secret_message->message_info;
-  message_info.dialog_id = DialogId(secret_chat_id);
-  message_info.message_id = message_id;
-  message_info.sender_user_id = user_id;
-  message_info.date = date;
-  message_info.random_id = random_id;
-  message_info.content = create_screenshot_taken_message_content();
-
-  Dialog *d = get_dialog_force(message_info.dialog_id, "on_secret_chat_screenshot_taken");
-  if (d == nullptr &&
-      td_->dialog_manager_->have_dialog_info_force(message_info.dialog_id, "on_secret_chat_screenshot_taken")) {
-    force_create_dialog(message_info.dialog_id, "on_secret_chat_screenshot_taken", true, true);
-    d = get_dialog(message_info.dialog_id);
-  }
-  if (d == nullptr) {
-    LOG(ERROR) << "Ignore secret message in unknown " << message_info.dialog_id;
-    pending_secret_message->success_promise.set_error(Status::Error(500, "Chat not found"));
-    return;
-  }
-
-  add_secret_message(std::move(pending_secret_message));
-}
-
-void MessagesManager::on_secret_chat_ttl_changed(SecretChatId secret_chat_id, UserId user_id, MessageId message_id,
-                                                 int32 date, int32 ttl, int64 random_id, Promise<Unit> promise) {
-  LOG(DEBUG) << "On self-destruct timer set in " << secret_chat_id << " to " << ttl;
-  CHECK(secret_chat_id.is_valid());
-  CHECK(user_id.is_valid());
-  CHECK(message_id.is_valid());
-  CHECK(date > 0);
-  if (ttl < 0) {
-    LOG(WARNING) << "Receive wrong self-destruct time = " << ttl;
-    promise.set_value(Unit());
-    return;
-  }
-
-  auto pending_secret_message = make_unique<PendingSecretMessage>();
-  pending_secret_message->success_promise = std::move(promise);
-  MessageInfo &message_info = pending_secret_message->message_info;
-  message_info.dialog_id = DialogId(secret_chat_id);
-  message_info.message_id = message_id;
-  message_info.sender_user_id = user_id;
-  message_info.date = date;
-  message_info.random_id = random_id;
-  message_info.content = create_chat_set_ttl_message_content(ttl, UserId());
-
-  Dialog *d = get_dialog_force(message_info.dialog_id, "on_secret_chat_ttl_changed");
-  if (d == nullptr &&
-      td_->dialog_manager_->have_dialog_info_force(message_info.dialog_id, "on_secret_chat_ttl_changed")) {
-    force_create_dialog(message_info.dialog_id, "on_secret_chat_ttl_changed", true, true);
-    d = get_dialog(message_info.dialog_id);
-  }
-  if (d == nullptr) {
-    LOG(ERROR) << "Ignore secret message in unknown " << message_info.dialog_id;
-    pending_secret_message->success_promise.set_error(Status::Error(500, "Chat not found"));
-    return;
-  }
-
-  add_secret_message(std::move(pending_secret_message));
-}
-
-void MessagesManager::add_secret_message(unique_ptr<PendingSecretMessage> pending_secret_message,
-                                         Promise<Unit> lock_promise) {
-  auto &multipromise = pending_secret_message->load_data_multipromise;
-  multipromise.set_ignore_errors(true);
-  int64 token = pending_secret_messages_.add(std::move(pending_secret_message));
-
-  multipromise.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), token](Result<Unit> result) {
-    if (result.is_ok()) {
-      send_closure(actor_id, &MessagesManager::on_add_secret_message_ready, token);
-    }
-  }));
-
-  if (!lock_promise) {
-    lock_promise = multipromise.get_promise();
-  }
-  lock_promise.set_value(Unit());
-}
-
-void MessagesManager::on_add_secret_message_ready(int64 token) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  pending_secret_messages_.finish(
-      token, [actor_id = actor_id(this)](unique_ptr<PendingSecretMessage> pending_secret_message) {
-        send_closure_later(actor_id, &MessagesManager::finish_add_secret_message, std::move(pending_secret_message));
-      });
-}
-
-void MessagesManager::finish_add_secret_message(unique_ptr<PendingSecretMessage> pending_secret_message) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  if (pending_secret_message->type == PendingSecretMessage::Type::DeleteMessages) {
-    return finish_delete_secret_messages(pending_secret_message->dialog_id,
-                                         std::move(pending_secret_message->random_ids),
-                                         std::move(pending_secret_message->success_promise));
-  }
-  if (pending_secret_message->type == PendingSecretMessage::Type::DeleteHistory) {
-    return finish_delete_secret_chat_history(
-        pending_secret_message->dialog_id, pending_secret_message->remove_from_dialog_list,
-        pending_secret_message->last_message_id, std::move(pending_secret_message->success_promise));
-  }
-
-  auto d = get_dialog(pending_secret_message->message_info.dialog_id);
-  CHECK(d != nullptr);
-  auto random_id = pending_secret_message->message_info.random_id;
-  auto message_id = get_message_id_by_random_id(d, random_id, "finish_add_secret_message");
-  if (message_id.is_valid()) {
-    if (message_id != pending_secret_message->message_info.message_id) {
-      LOG(WARNING) << "Ignore duplicate " << pending_secret_message->message_info.message_id
-                   << " received earlier with " << message_id << " and random_id " << random_id;
-    }
-  } else {
-    if (!td_->user_manager_->is_user_premium(pending_secret_message->message_info.sender_user_id)) {
-      auto message_text = get_message_content_text_mutable(pending_secret_message->message_info.content.get());
-      if (message_text != nullptr) {
-        remove_premium_custom_emoji_entities(td_, message_text->entities, true);
-      }
-    }
-
-    on_get_message(std::move(pending_secret_message->message_info), true, false, "finish add secret message");
-  }
-  auto dialog_it = pending_secret_message_ids_.find(d->dialog_id);
-  if (dialog_it != pending_secret_message_ids_.end()) {
-    auto message_it = dialog_it->second.find(random_id);
-    if (message_it != dialog_it->second.end() && message_it->second == message_id) {
-      dialog_it->second.erase(message_it);
-      if (dialog_it->second.empty()) {
-        pending_secret_message_ids_.erase(dialog_it);
-      }
-    }
-  }
-
-  pending_secret_message->success_promise.set_value(Unit());  // TODO: set after message is saved
-}
-
-MessagesManager::MessageInfo MessagesManager::parse_telegram_api_message(
-    Td *td, tl_object_ptr<telegram_api::Message> message_ptr, bool is_scheduled, bool is_business_message,
-    const char *source) {
-  LOG(DEBUG) << "Receive from " << source << " " << to_string(message_ptr);
-  LOG_CHECK(message_ptr != nullptr) << source;
-
-  auto is_bot = td->auth_manager_->is_bot();
-  MessageInfo message_info;
-  message_info.message_id = MessageId::get_message_id(message_ptr, is_scheduled);
-  switch (message_ptr->get_id()) {
-    case telegram_api::messageEmpty::ID:
-      message_info.message_id = MessageId();
-      break;
-    case telegram_api::message::ID: {
-      auto message = move_tl_object_as<telegram_api::message>(message_ptr);
-      if (message->quick_reply_shortcut_id_ != 0) {
-        LOG(ERROR) << "Receive shortcut " << message->quick_reply_shortcut_id_ << " from " << source;
-        message_info.message_id = MessageId();
-        break;
-      }
-
-      message_info.dialog_id = DialogId(message->peer_id_);
-      if (message->from_id_ != nullptr) {
-        message_info.sender_dialog_id = DialogId(message->from_id_);
-      } else {
-        message_info.sender_dialog_id = message_info.dialog_id;
-      }
-      message_info.date = message->date_;
-      message_info.forward_header = std::move(message->fwd_from_);
-      bool can_have_thread = message_info.dialog_id.get_type() == DialogType::Channel &&
-                             !td->dialog_manager_->is_broadcast_channel(message_info.dialog_id);
-      message_info.reply_header = MessageReplyHeader(td, std::move(message->reply_to_), message_info.dialog_id,
-                                                     message_info.message_id, message_info.date, can_have_thread);
-      message_info.via_bot_user_id = UserId(message->via_bot_id_);
-      if (message_info.via_bot_user_id != UserId() && !message_info.via_bot_user_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << message_info.via_bot_user_id << " from " << source;
-        message_info.via_bot_user_id = UserId();
-      }
-      message_info.via_business_bot_user_id = UserId(message->via_business_bot_id_);
-      if (message_info.via_business_bot_user_id != UserId() && !message_info.via_business_bot_user_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << message_info.via_business_bot_user_id << " from " << source;
-        message_info.via_business_bot_user_id = UserId();
-      }
-      message_info.view_count = message->views_;
-      message_info.forward_count = message->forwards_;
-      message_info.reply_info = std::move(message->replies_);
-      message_info.reactions = std::move(message->reactions_);
-      message_info.fact_check = std::move(message->factcheck_);
-      message_info.edit_date = message->edit_date_;
-      message_info.media_album_id = message->grouped_id_;
-      message_info.ttl_period = message->ttl_period_;
-      message_info.is_outgoing = message->out_;
-      message_info.is_silent = message->silent_;
-      message_info.is_channel_post = message->post_;
-      message_info.is_legacy = message->legacy_;
-      message_info.hide_edit_date = message->edit_hide_;
-      message_info.is_from_scheduled = message->from_scheduled_;
-      message_info.is_from_offline = message->offline_;
-      message_info.is_pinned = message->pinned_;
-      message_info.noforwards = message->noforwards_;
-      message_info.has_mention = message->mentioned_;
-      message_info.has_unread_content = message->media_unread_;
-      message_info.invert_media = message->invert_media_;
-      message_info.video_processing_pending = message->video_processing_pending_;
-      message_info.effect_id = MessageEffectId(message->effect_);
-
-      bool is_content_read = true;
-      if (!is_bot) {
-        if (is_scheduled) {
-          is_content_read = false;
-        } else if (td->messages_manager_->is_message_auto_read(message_info.dialog_id, message_info.is_outgoing)) {
-          is_content_read = true;
-        } else {
-          is_content_read = !message_info.has_unread_content;
-        }
-      }
-      auto new_source = PSTRING() << MessageFullId(message_info.dialog_id, message_info.message_id) << " sent by "
-                                  << message_info.sender_dialog_id << " from " << source;
-      message_info.content = get_message_content(
-          td,
-          get_message_text(td->user_manager_.get(), std::move(message->message_), std::move(message->entities_), true,
-                           is_bot, message_info.forward_header ? message_info.forward_header->date_ : message_info.date,
-                           message_info.media_album_id != 0, new_source.c_str()),
-          std::move(message->media_), message_info.dialog_id, message_info.date, is_content_read,
-          message_info.via_bot_user_id, &message_info.ttl, &message_info.disable_web_page_preview, new_source.c_str());
-      message_info.reply_markup = std::move(message->reply_markup_);
-      message_info.restriction_reasons = get_restriction_reasons(std::move(message->restriction_reason_));
-      message_info.author_signature = std::move(message->post_author_);
-      message_info.sender_boost_count = message->from_boosts_applied_;
-      message_info.paid_message_star_count = StarManager::get_star_count(message->paid_message_stars_);
-      if (!is_bot && message->saved_peer_id_ != nullptr) {
-        message_info.saved_messages_topic_id = SavedMessagesTopicId(DialogId(message->saved_peer_id_));
-      }
-      // update QuickReplyManager::create_message
-      break;
-    }
-    case telegram_api::messageService::ID: {
-      auto message = move_tl_object_as<telegram_api::messageService>(message_ptr);
-
-      message_info.dialog_id = DialogId(message->peer_id_);
-      if (message->from_id_ != nullptr) {
-        message_info.sender_dialog_id = DialogId(message->from_id_);
-      } else {
-        message_info.sender_dialog_id = message_info.dialog_id;
-      }
-      message_info.date = message->date_;
-      message_info.reactions = std::move(message->reactions_);
-      message_info.ttl_period = message->ttl_period_;
-      message_info.is_outgoing = message->out_;
-      message_info.is_silent = message->silent_;
-      message_info.is_channel_post = message->post_;
-      message_info.is_legacy = message->legacy_;
-      message_info.has_mention = message->mentioned_;
-      message_info.has_unread_content = message->media_unread_;
-      message_info.reactions_are_possible = message->reactions_are_possible_;
-      bool can_have_thread = message_info.dialog_id.get_type() == DialogType::Channel &&
-                             !td->dialog_manager_->is_broadcast_channel(message_info.dialog_id);
-      message_info.reply_header = MessageReplyHeader(td, std::move(message->reply_to_), message_info.dialog_id,
-                                                     message_info.message_id, message_info.date, can_have_thread);
-      message_info.content =
-          get_action_message_content(td, std::move(message->action_), message_info.dialog_id, message_info.date,
-                                     message_info.reply_header.replied_message_info_, is_business_message);
-      message_info.reply_header.replied_message_info_ = RepliedMessageInfo();
-      message_info.reply_header.story_full_id_ = StoryFullId();
-      if (!is_bot && message_info.dialog_id == td->dialog_manager_->get_my_dialog_id()) {
-        message_info.saved_messages_topic_id = SavedMessagesTopicId(message_info.dialog_id);
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-  if (message_info.sender_dialog_id.get_type() == DialogType::User) {
-    message_info.sender_user_id = message_info.sender_dialog_id.get_user_id();
-    message_info.sender_dialog_id = DialogId();
-  }
-  return message_info;
-}
-
-std::pair<DialogId, unique_ptr<MessagesManager::Message>> MessagesManager::create_message(
-    Td *td, MessageInfo &&message_info, bool is_channel_message, bool is_business_message, const char *source) {
-  DialogId dialog_id = message_info.dialog_id;
-  MessageId message_id = message_info.message_id;
-  if ((!message_id.is_valid() && !message_id.is_valid_scheduled()) || !dialog_id.is_valid()) {
-    if (message_id != MessageId() || dialog_id != DialogId()) {
-      LOG(ERROR) << "Receive " << message_id << " in " << dialog_id;
-    }
-    return {DialogId(), nullptr};
-  }
-  if (message_id.is_yet_unsent() || message_id.is_local()) {
-    LOG(ERROR) << "Receive " << message_id;
-    return {DialogId(), nullptr};
-  }
-
-  CHECK(message_info.content != nullptr);
-
-  auto is_bot = td->auth_manager_->is_bot();
-  auto dialog_type = dialog_id.get_type();
-  UserId sender_user_id = message_info.sender_user_id;
-  DialogId sender_dialog_id = message_info.sender_dialog_id;
-  if (!sender_user_id.is_valid()) {
-    if (sender_user_id != UserId()) {
-      LOG(ERROR) << "Receive invalid " << sender_user_id;
-      sender_user_id = UserId();
-    }
-    if (!td->dialog_manager_->is_broadcast_channel(dialog_id) && is_bot) {
-      if (dialog_id == sender_dialog_id) {
-        td->user_manager_->add_anonymous_bot_user();
-      } else {
-        td->user_manager_->add_service_notifications_user();
-        td->user_manager_->add_channel_bot_user();
-      }
-    }
-  }
-  if (sender_dialog_id.is_valid()) {
-    if (dialog_type == DialogType::User || dialog_type == DialogType::SecretChat) {
-      LOG(ERROR) << "Receive " << message_id << " sent by " << sender_dialog_id << " in " << dialog_id;
-      return {DialogId(), nullptr};
-    }
-  } else if (sender_dialog_id != DialogId()) {
-    LOG(ERROR) << "Receive invalid " << sender_dialog_id;
-    sender_dialog_id = DialogId();
-  }
-  if (message_id.is_scheduled()) {
-    is_channel_message = (dialog_type == DialogType::Channel);
-  }
-
-  LOG_IF(ERROR, is_channel_message != (dialog_type == DialogType::Channel))
-      << "Receive wrong is_channel_message for " << message_id << " in " << dialog_id;
-
-  bool is_channel_post = message_info.is_channel_post;
-  if (is_channel_post && !td->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    LOG(ERROR) << "Receive is_channel_post for " << message_id << " in " << dialog_id;
-    is_channel_post = false;
-  }
-
-  UserId my_id = td->user_manager_->get_my_id();
-  DialogId my_dialog_id = DialogId(my_id);
-  if (dialog_id == my_dialog_id && (sender_user_id != my_id || sender_dialog_id.is_valid())) {
-    LOG(ERROR) << "Receive " << sender_user_id << "/" << sender_dialog_id << " as a sender of " << message_id
-               << " instead of self";
-    sender_user_id = my_id;
-    sender_dialog_id = DialogId();
-  }
-
-  bool is_outgoing = message_info.is_outgoing;
-  bool supposed_to_be_outgoing = sender_user_id == my_id && !(dialog_id == my_dialog_id && !message_id.is_scheduled());
-  if (sender_user_id.is_valid() && supposed_to_be_outgoing != is_outgoing && !is_business_message) {
-    LOG(ERROR) << "Receive wrong out flag for " << message_id << " in " << dialog_id << ": me is " << my_id
-               << ", but message is from " << sender_user_id;
-    is_outgoing = supposed_to_be_outgoing;
-
-    /*
-    // it is useless to call getChannelDifference, because the channel PTS will be increased already
-    if (dialog_type == DialogType::Channel && !running_get_difference_ && !running_get_channel_difference(dialog_id) &&
-        !message_id.is_scheduled() && get_channel_difference_to_log_event_id_.count(dialog_id) == 0) {
-      // it is safer to completely ignore the message and re-get it through getChannelDifference
-      Dialog *d = get_dialog(dialog_id);
-      if (d != nullptr) {
-        schedule_get_channel_difference(dialog_id, 0, message_id, 0.001, source);
-        return {DialogId(), nullptr};
-      }
-    }
-    */
-  }
-
-  int32 date = message_info.date;
-  if (date <= 0) {
-    LOG(ERROR) << "Wrong date = " << date << " received in " << message_id << " in " << dialog_id;
-    date = 1;
-  }
-
-  MessageId top_thread_message_id = message_info.reply_header.top_thread_message_id_;
-  bool is_topic_message = message_info.reply_header.is_topic_message_;
-  auto reply_to_story_full_id = message_info.reply_header.story_full_id_;
-  if (reply_to_story_full_id != StoryFullId()) {
-    auto story_dialog_id = reply_to_story_full_id.get_dialog_id();
-    if (story_dialog_id != my_dialog_id && story_dialog_id != dialog_id &&
-        story_dialog_id != DialogId(sender_user_id) && !is_business_message) {
-      LOG(ERROR) << "Receive reply to " << reply_to_story_full_id << " in " << dialog_id;
-      reply_to_story_full_id = {};
-    }
-  }
-
-  UserId via_bot_user_id = message_info.via_bot_user_id;
-  if (!via_bot_user_id.is_valid()) {
-    via_bot_user_id = UserId();
-  }
-
-  int32 edit_date = message_info.edit_date;
-  if (edit_date < 0) {
-    LOG(ERROR) << "Wrong edit_date = " << edit_date << " received in " << message_id << " in " << dialog_id;
-    edit_date = 0;
-  }
-
-  auto content_type = message_info.content->get_type();
-  if (content_type == MessageContentType::Sticker &&
-      get_message_content_sticker_type(td, message_info.content.get()) == StickerType::CustomEmoji) {
-    LOG(INFO) << "Replace emoji sticker with an empty message";
-    message_info.content =
-        create_text_message_content("Invalid sticker", {}, WebPageId(), false, false, false, string());
-    message_info.invert_media = false;
-    content_type = message_info.content->get_type();
-  }
-
-  bool hide_edit_date = message_info.hide_edit_date;
-  if (hide_edit_date && is_bot) {
-    hide_edit_date = false;
-  }
-  if (hide_edit_date && content_type == MessageContentType::LiveLocation) {
-    hide_edit_date = false;
-  }
-
-  int32 ttl_period = message_info.ttl_period;
-  if (ttl_period < 0 || (message_id.is_scheduled() && ttl_period != 0)) {
-    LOG(ERROR) << "Wrong auto-delete time " << ttl_period << " received in " << message_id << " in " << dialog_id;
-    ttl_period = 0;
-  }
-
-  auto ttl = message_info.ttl;
-  bool is_content_secret = ttl.is_secret_message_content(content_type);  // must be calculated before TTL is adjusted
-  if (!ttl.is_empty()) {
-    if (!ttl.is_valid() || message_id.is_scheduled()) {
-      LOG(ERROR) << "Wrong " << ttl << " received in " << message_id << " in " << dialog_id;
-      ttl = {};
-    } else {
-      ttl.ensure_at_least(get_message_content_duration(message_info.content.get(), td) + 1);
-    }
-  }
-
-  if (message_id.is_scheduled()) {
-    if (message_info.reply_info != nullptr) {
-      LOG(ERROR) << "Receive " << message_id << " in " << dialog_id << " with " << to_string(message_info.reply_info);
-      message_info.reply_info = nullptr;
-    }
-    if (message_info.reactions != nullptr) {
-      LOG(ERROR) << "Receive " << message_id << " in " << dialog_id << " with " << to_string(message_info.reactions);
-      message_info.reactions = nullptr;
-    }
-    if (message_info.fact_check != nullptr) {
-      LOG(ERROR) << "Receive " << message_id << " in " << dialog_id << " with " << to_string(message_info.fact_check);
-      message_info.fact_check = nullptr;
-    }
-  }
-  int32 view_count = message_info.view_count;
-  if (view_count < 0) {
-    LOG(ERROR) << "Wrong view_count = " << view_count << " received in " << message_id << " in " << dialog_id;
-    view_count = 0;
-  }
-  int32 forward_count = message_info.forward_count;
-  if (forward_count < 0) {
-    LOG(ERROR) << "Wrong forward_count = " << forward_count << " received in " << message_id << " in " << dialog_id;
-    forward_count = 0;
-  }
-  MessageReplyInfo reply_info(td, std::move(message_info.reply_info), is_bot);
-  if (!top_thread_message_id.is_valid() &&
-      td->messages_manager_->is_thread_message(dialog_id, message_id, reply_info, content_type)) {
-    top_thread_message_id = message_id;
-    is_topic_message = (content_type == MessageContentType::TopicCreate);
-  }
-  if (top_thread_message_id.is_valid() && dialog_type != DialogType::Channel) {
-    // just in case
-    top_thread_message_id = MessageId();
-  }
-  if (!top_thread_message_id.is_valid()) {
-    // just in case
-    is_topic_message = false;
-  }
-  auto reactions = MessageReactions::get_message_reactions(td, std::move(message_info.reactions), is_bot);
-  if (reactions != nullptr) {
-    reactions->sort_reactions(td->messages_manager_->active_reaction_pos_);
-    reactions->fix_chosen_reaction();
-    reactions->fix_my_recent_chooser_dialog_id(my_dialog_id);
-  }
-  auto fact_check = FactCheck::get_fact_check(td->user_manager_.get(), std::move(message_info.fact_check), is_bot);
-
-  bool has_forward_info = message_info.forward_header != nullptr;
-  bool noforwards = message_info.noforwards;
-  bool is_expired = is_expired_message_content(content_type);
-  if (is_expired) {
-    CHECK(ttl.is_empty());  // self-destruct time is ignored/set to 0 if the message has already been expired
-    message_info.reply_header.replied_message_info_ = {};
-    reply_to_story_full_id = StoryFullId();
-    noforwards = false;
-    is_content_secret = false;
-    message_info.invert_media = false;
-  }
-
-  bool is_pinned = message_info.is_pinned;
-  if (is_pinned && message_id.is_scheduled()) {
-    LOG(ERROR) << "Receive pinned " << message_id << " in " << dialog_id;
-    is_pinned = false;
-  }
-
-  bool has_mention =
-      message_info.has_mention || (content_type == MessageContentType::PinMessage &&
-                                   td->option_manager_->get_option_boolean("process_pinned_messages_as_mentions"));
-
-  LOG(INFO) << "Receive " << message_id << " in " << dialog_id << " from " << sender_user_id << "/" << sender_dialog_id;
-
-  auto message = make_unique<Message>();
-  message->message_id = message_id;
-  message->sender_user_id = sender_user_id;
-  message->sender_dialog_id = sender_dialog_id;
-  message->date = date;
-  message->ttl_period = ttl_period;
-  message->ttl = ttl;
-  message->disable_web_page_preview = message_info.disable_web_page_preview;
-  message->edit_date = edit_date;
-  message->random_id = message_info.random_id;
-  message->forward_info = MessageForwardInfo::get_message_forward_info(td, std::move(message_info.forward_header));
-  message->replied_message_info = std::move(message_info.reply_header.replied_message_info_);
-  message->top_thread_message_id = top_thread_message_id;
-  message->is_topic_message = is_topic_message;
-  message->via_bot_user_id = via_bot_user_id;
-  message->via_business_bot_user_id = message_info.via_business_bot_user_id;
-  message->reply_to_story_full_id = reply_to_story_full_id;
-  message->restriction_reasons = std::move(message_info.restriction_reasons);
-  message->author_signature = std::move(message_info.author_signature);
-  message->sender_boost_count = message_info.sender_boost_count;
-  message->paid_message_star_count = message_info.paid_message_star_count;
-  message->saved_messages_topic_id = message_info.saved_messages_topic_id;
-  message->is_outgoing = is_outgoing;
-  message->is_channel_post = is_channel_post;
-  message->contains_mention = !is_outgoing && dialog_type != DialogType::User && !is_expired && has_mention && !is_bot;
-  message->contains_unread_mention =
-      !message_id.is_scheduled() && message_id.is_server() && message->contains_mention &&
-      message_info.has_unread_content &&
-      (dialog_type == DialogType::Chat ||
-       (dialog_type == DialogType::Channel && !td->dialog_manager_->is_broadcast_channel(dialog_id)));
-  message->disable_notification = message_info.is_silent;
-  message->is_content_secret = is_content_secret;
-  message->hide_edit_date = hide_edit_date;
-  message->is_from_scheduled = message_info.is_from_scheduled;
-  message->is_from_offline = message_info.is_from_offline;
-  message->is_pinned = is_pinned;
-  message->noforwards = noforwards;
-  message->video_processing_pending = message_info.video_processing_pending;
-  message->reactions_are_possible = message_info.reactions_are_possible;
-  message->interaction_info_update_date = G()->unix_time();
-  message->view_count = view_count;
-  message->forward_count = forward_count;
-  message->reply_info = std::move(reply_info);
-  message->reactions = std::move(reactions);
-  message->fact_check = std::move(fact_check);
-  message->effect_id = message_info.effect_id;
-  message->legacy_layer = (message_info.is_legacy ? MTPROTO_LAYER : 0);
-  message->invert_media = message_info.invert_media;
-  message->content = std::move(message_info.content);
-  message->reply_markup = get_reply_markup(std::move(message_info.reply_markup), is_bot, false,
-                                           message->contains_mention || dialog_type == DialogType::User);
-  if (message->reply_markup != nullptr && is_expired) {
-    // just in case
-    if (message->reply_markup->type != ReplyMarkup::Type::InlineKeyboard) {
-      message->had_reply_markup = true;
-    }
-    message->reply_markup = nullptr;
-  }
-
-  if (message_info.media_album_id != 0) {
-    if (!is_allowed_media_group_content(content_type)) {
-      if (content_type != MessageContentType::Unsupported) {
-        LOG(ERROR) << "Receive media group identifier " << message_info.media_album_id << " in " << message_id
-                   << " from " << dialog_id << " with content "
-                   << oneline(to_string(
-                          td->messages_manager_->get_message_message_content_object(dialog_id, message.get())));
-      }
-    } else {
-      message->media_album_id = message_info.media_album_id;
-    }
-  }
-
-  if (message->forward_info == nullptr && has_forward_info) {
-    message->had_forward_info = true;
-  }
-
-  if (dialog_id == my_dialog_id) {
-    if (!message->saved_messages_topic_id.is_valid()) {
-      LOG(ERROR) << "Receive no Saved Messages topic for " << message_id << " in " << dialog_id;
-      message->saved_messages_topic_id = SavedMessagesTopicId(my_dialog_id, message->forward_info.get(), DialogId());
-    }
-  } else {
-    if (message->saved_messages_topic_id.is_valid()) {
-      LOG(ERROR) << "Receive Saved Messages " << message_info.saved_messages_topic_id << " for " << message_id << " in "
-                 << dialog_id;
-      message->saved_messages_topic_id = SavedMessagesTopicId();
-    }
-  }
-
-  Dependencies dependencies;
-  td->messages_manager_->add_message_dependencies(dependencies, message.get());
-  for (auto dependent_dialog_id : dependencies.get_dialog_ids()) {
-    if (dependent_dialog_id != dialog_id) {
-      td->dialog_manager_->force_create_dialog(dependent_dialog_id, source, true);
-    }
-  }
-
-  return {dialog_id, std::move(message)};
-}
-
-MessageId MessagesManager::find_old_message_id(DialogId dialog_id, MessageId message_id) const {
-  if (message_id.is_scheduled()) {
-    CHECK(message_id.is_scheduled_server());
-    auto dialog_it = update_scheduled_message_ids_.find(dialog_id);
-    if (dialog_it != update_scheduled_message_ids_.end()) {
-      auto it = dialog_it->second.find(message_id.get_scheduled_server_message_id());
-      if (it != dialog_it->second.end()) {
-        return it->second;
-      }
-    }
-  } else {
-    CHECK(message_id.is_server());
-    auto it = update_message_ids_.find(MessageFullId(dialog_id, message_id));
-    if (it != update_message_ids_.end()) {
-      return it->second;
-    }
-  }
-  return MessageId();
-}
-
-void MessagesManager::delete_update_message_id(DialogId dialog_id, MessageId message_id) {
-  if (message_id.is_scheduled()) {
-    CHECK(message_id.is_scheduled_server());
-    auto dialog_it = update_scheduled_message_ids_.find(dialog_id);
-    CHECK(dialog_it != update_scheduled_message_ids_.end());
-    auto erased_count = dialog_it->second.erase(message_id.get_scheduled_server_message_id());
-    CHECK(erased_count > 0);
-    if (dialog_it->second.empty()) {
-      update_scheduled_message_ids_.erase(dialog_it);
-    }
-  } else {
-    CHECK(message_id.is_server());
-    auto erased_count = update_message_ids_.erase(MessageFullId(dialog_id, message_id));
-    CHECK(erased_count > 0);
-  }
-}
-
-MessageFullId MessagesManager::on_get_message(tl_object_ptr<telegram_api::Message> message_ptr, bool from_update,
-                                              bool is_channel_message, bool is_scheduled, const char *source) {
-  return on_get_message(parse_telegram_api_message(td_, std::move(message_ptr), is_scheduled, false, source),
-                        from_update, is_channel_message, source);
-}
-
-MessageFullId MessagesManager::on_get_message(MessageInfo &&message_info, const bool from_update,
-                                              const bool is_channel_message, const char *source) {
-  DialogId dialog_id;
-  unique_ptr<Message> new_message;
-  auto report_delivery_until_date = message_info.report_delivery_until_date;
-  std::tie(dialog_id, new_message) = create_message(td_, std::move(message_info), is_channel_message, false, source);
-  if (new_message == nullptr) {
-    return MessageFullId();
-  }
-  MessageId message_id = new_message->message_id;
-  if (report_delivery_until_date != 0 && message_id.is_valid() && message_id.is_server()) {
-    td_->message_query_manager_->report_message_delivery({dialog_id, message_id}, report_delivery_until_date, false);
-  }
-
-  bool need_update = from_update;
-  bool need_update_dialog_pos = false;
-
-  Dialog *d = get_dialog_force(dialog_id, source);
-
-  MessageId old_message_id = find_old_message_id(dialog_id, message_id);
-  bool is_sent_message = false;
-  if (old_message_id.is_valid() || old_message_id.is_valid_scheduled()) {
-    CHECK(d != nullptr);
-
-    if (!from_update && !message_id.is_scheduled()) {
-      if (message_id <= d->last_new_message_id || td_->auth_manager_->is_bot()) {
-        if (get_message_force(d, message_id, "receive missed unsent message not from update") != nullptr) {
-          LOG(ERROR) << "New " << old_message_id << "/" << message_id << " in " << dialog_id << " from " << source
-                     << " has identifier less than last_new_message_id = " << d->last_new_message_id;
-          return MessageFullId();
-        }
-        // if there is no message yet, then it is likely was missed because of a server bug and is being repaired via
-        // get_message_from_server from after_get_difference
-        LOG(INFO) << "Receive " << old_message_id << "/" << message_id << " in " << dialog_id << " from " << source
-                  << " with identifier less than last_new_message_id = " << d->last_new_message_id
-                  << " and trying to add it anyway";
-      } else {
-        LOG(INFO) << "Ignore " << old_message_id << "/" << message_id << " received not through update from " << source
-                  << ": " << oneline(to_string(get_message_object(dialog_id, new_message.get(), "on_get_message")));
-        if (dialog_id.get_type() == DialogType::Channel &&
-            td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-          schedule_get_channel_difference(dialog_id, 0, message_id, 0.001, "on_get_message");
-        }
-        return MessageFullId();
-      }
-    }
-
-    delete_update_message_id(dialog_id, message_id);
-
-    if (!new_message->is_outgoing && dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-      // sent message is not from me
-      LOG(ERROR) << "Sent in " << dialog_id << " " << message_id << " is sent by " << new_message->sender_user_id << "/"
-                 << new_message->sender_dialog_id;
-      return MessageFullId();
-    }
-
-    // must be called before delete_message
-    update_reply_to_message_id(dialog_id, old_message_id, message_id, true, "on_get_message");
-
-    being_readded_message_id_ = {dialog_id, old_message_id};
-    auto old_message = delete_message(d, old_message_id, false, &need_update_dialog_pos, "add sent message");
-    if (old_message == nullptr) {
-      delete_sent_message_on_server(dialog_id, message_id, old_message_id);
-      being_readded_message_id_ = MessageFullId();
-      return MessageFullId();
-    }
-    old_message_id = old_message->message_id;
-
-    need_update = false;
-
-    new_message->message_id = old_message_id;
-    update_message(d, old_message.get(), std::move(new_message), false);
-    new_message = std::move(old_message);
-
-    auto reply_message_full_id = new_message->replied_message_info.get_reply_message_full_id(dialog_id, false);
-    auto reply_message_id = reply_message_full_id.get_message_id();
-    if (reply_message_id.is_valid() && reply_message_id.is_yet_unsent()) {
-      set_message_reply(d, new_message.get(), MessageInputReplyTo(), false);
-    }
-
-    new_message->message_id = message_id;
-    send_update_message_send_succeeded(d, old_message_id, new_message.get(), &need_update_dialog_pos);
-
-    if (!message_id.is_scheduled()) {
-      is_sent_message = true;
-    }
-  }
-  if (d == nullptr) {
-    d = add_dialog_for_new_message(dialog_id, from_update, &need_update_dialog_pos, source);
-  }
-
-  const Message *m = add_message_to_dialog(d, std::move(new_message), false, from_update, &need_update,
-                                           &need_update_dialog_pos, source);
-  being_readded_message_id_ = MessageFullId();
-  if (m == nullptr) {
-    if (need_update_dialog_pos) {
-      send_update_chat_last_message(d, "on_get_message");
-    }
-    if (old_message_id.is_valid() || old_message_id.is_valid_scheduled()) {
-      if (!old_message_id.is_valid() || !message_id.is_valid() || old_message_id <= message_id) {
-        LOG(ERROR) << "Failed to add just sent " << old_message_id << " to " << dialog_id << " as " << message_id
-                   << " from " << source << ": " << debug_add_message_to_dialog_fail_reason_;
-      }
-      send_update_delete_messages(dialog_id, {message_id.get()}, true);
-    }
-
-    return MessageFullId();
-  }
-
-  if (need_update) {
-    send_update_new_message(d, m);
-  }
-  if (!td_->auth_manager_->is_bot() && !message_id.is_scheduled() &&
-      published_video_message_full_ids_.erase({dialog_id, message_id}) != 0) {
-    send_update_video_published({dialog_id, message_id});
-  }
-
-  if (is_sent_message) {
-    if (try_add_active_live_location(dialog_id, m)) {
-      send_update_active_live_location_messages();
-    }
-
-    // add_message_to_dialog will not update counts, because need_update == false
-    update_message_count_by_index(d, +1, m);
-  }
-
-  if (is_sent_message || (need_update && !message_id.is_scheduled())) {
-    update_reply_count_by_message(d, +1, m);
-    update_forward_count(dialog_id, m);
-  }
-
-  if (dialog_id.get_type() == DialogType::Channel &&
-      !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    auto message = delete_message(d, message_id, false, &need_update_dialog_pos, "get a message in inaccessible chat");
-    CHECK(message.get() == m);
-    send_update_delete_messages(dialog_id, {m->message_id.get()}, false);
-    // don't need to update chat position
-    return MessageFullId();
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    if (m->message_id.is_scheduled()) {
-      send_update_chat_has_scheduled_messages(d, false);
-    }
-
-    if (need_update_dialog_pos) {
-      send_update_chat_last_message(d, "on_get_message");
-    }
-
-    // set dialog reply markup only after updateNewMessage and updateChatLastMessage are sent
-    if (need_update && m->reply_markup != nullptr && !m->message_id.is_scheduled() &&
-        m->reply_markup->type != ReplyMarkup::Type::InlineKeyboard && m->reply_markup->is_personal) {
-      set_dialog_reply_markup(d, message_id);
-    }
-
-    if (from_update) {
-      auto it = pending_created_dialogs_.find(dialog_id);
-      if (it != pending_created_dialogs_.end()) {
-        auto pending_created_dialog = std::move(it->second);
-        pending_created_dialogs_.erase(it);
-
-        if (pending_created_dialog.chat_promise_) {
-          pending_created_dialog.chat_promise_.set_value(td_api::make_object<td_api::createdBasicGroupChat>(
-              get_chat_id_object(dialog_id, "on_get_message"),
-              std::move(pending_created_dialog.failed_to_add_members_)));
-        } else {
-          pending_created_dialog.channel_promise_.set_value(get_chat_object(d, "on_get_message"));
-        }
-      }
-    }
-  }
-
-  return MessageFullId(dialog_id, message_id);
-}
-
-void MessagesManager::set_dialog_last_message_id(Dialog *d, MessageId last_message_id, const char *source,
-                                                 const Message *m) {
-  CHECK(!last_message_id.is_scheduled());
-  CHECK(!td_->auth_manager_->is_bot());
-
-  LOG(INFO) << "Set " << d->dialog_id << " last message to " << last_message_id << " from " << source;
-  d->last_message_id = last_message_id;
-
-  if (m != nullptr) {
-    d->last_media_album_id = m->media_album_id;
-  } else if (!last_message_id.is_valid()) {
-    d->last_media_album_id = 0;
-  } else {
-    m = get_message(d, last_message_id);
-    if (m == nullptr) {
-      LOG(ERROR) << "Failed to find last " << last_message_id << " in " << d->dialog_id;
-      d->last_media_album_id = 0;
-    } else {
-      d->last_media_album_id = m->media_album_id;
-    }
-  }
-  if (!last_message_id.is_valid()) {
-    auto it = dialog_suffix_load_queries_.find(d->dialog_id);
-    if (it != dialog_suffix_load_queries_.end()) {
-      it->second->suffix_load_first_message_id_ = MessageId();
-      it->second->suffix_load_done_ = false;
-    }
-  }
-  if (last_message_id.is_valid() && d->delete_last_message_date != 0) {
-    d->delete_last_message_date = 0;
-    d->deleted_last_message_id = MessageId();
-    d->is_last_message_deleted_locally = false;
-    on_dialog_updated(d->dialog_id, "update_delete_last_message_date");
-  }
-  d->pending_order = DEFAULT_ORDER;
-}
-
-void MessagesManager::set_dialog_first_database_message_id(Dialog *d, MessageId first_database_message_id,
-                                                           const char *source) {
-  CHECK(!first_database_message_id.is_scheduled());
-  CHECK(!td_->auth_manager_->is_bot());
-  if (first_database_message_id == d->first_database_message_id) {
-    return;
-  }
-
-  LOG(INFO) << "Set " << d->dialog_id << " first database message to " << first_database_message_id << " from "
-            << source;
-  d->first_database_message_id = first_database_message_id;
-  on_dialog_updated(d->dialog_id, "set_dialog_first_database_message_id");
-}
-
-void MessagesManager::set_dialog_last_database_message_id(Dialog *d, MessageId last_database_message_id,
-                                                          const char *source, bool is_loaded_from_database) {
-  CHECK(!last_database_message_id.is_scheduled());
-  CHECK(!td_->auth_manager_->is_bot());
-  if (last_database_message_id == d->last_database_message_id) {
-    return;
-  }
-
-  LOG(INFO) << "Set " << d->dialog_id << " last database message to " << last_database_message_id << " from " << source;
-  d->debug_set_dialog_last_database_message_id = source;
-  d->last_database_message_id = last_database_message_id;
-  if (!is_loaded_from_database) {
-    on_dialog_updated(d->dialog_id, "set_dialog_last_database_message_id");
-  }
-}
-
-void MessagesManager::remove_dialog_newer_messages(Dialog *d, MessageId from_message_id, const char *source) {
-  LOG(INFO) << "Remove messages in " << d->dialog_id << " newer than " << from_message_id << " from " << source;
-  CHECK(!d->last_new_message_id.is_valid());
-  CHECK(!td_->auth_manager_->is_bot());
-
-  // the function is called to handle channel gaps, and hence must always delete all database messages,
-  // even first_database_message_id and last_database_message_id are empty
-  delete_all_dialog_messages_from_database(d, MessageId::max(), "remove_dialog_newer_messages");
-  set_dialog_first_database_message_id(d, MessageId(), "remove_dialog_newer_messages");
-  set_dialog_last_database_message_id(d, MessageId(), source);
-  if (d->dialog_id.get_type() != DialogType::SecretChat && !d->is_empty) {
-    d->have_full_history = false;
-    d->have_full_history_source = 0;
-  }
-  invalidate_message_indexes(d);
-
-  auto to_delete_message_ids = d->ordered_messages.find_newer_messages(from_message_id);
-  td::remove_if(to_delete_message_ids, [](MessageId message_id) { return message_id.is_yet_unsent(); });
-  if (!to_delete_message_ids.empty()) {
-    LOG(INFO) << "Delete " << to_delete_message_ids << " newer than " << from_message_id << " in " << d->dialog_id
-              << " from " << source;
-
-    vector<int64> deleted_message_ids;
-    bool need_update_dialog_pos = false;
-    for (auto message_id : to_delete_message_ids) {
-      auto message = delete_message(d, message_id, false, &need_update_dialog_pos, "remove_dialog_newer_messages");
-      if (message != nullptr) {
-        deleted_message_ids.push_back(message->message_id.get());
-      }
-    }
-    if (need_update_dialog_pos) {
-      send_update_chat_last_message(d, "remove_dialog_newer_messages");
-    }
-    send_update_delete_messages(d->dialog_id, std::move(deleted_message_ids), false);
-  }
-}
-
-void MessagesManager::set_dialog_last_new_message_id(Dialog *d, MessageId last_new_message_id, const char *source) {
-  CHECK(!last_new_message_id.is_scheduled());
-  CHECK(!td_->auth_manager_->is_bot());
-
-  LOG_CHECK(last_new_message_id > d->last_new_message_id)
-      << last_new_message_id << " " << d->last_new_message_id << " " << source;
-  CHECK(d->dialog_id.get_type() == DialogType::SecretChat || last_new_message_id.is_server());
-  if (!d->last_new_message_id.is_valid()) {
-    remove_dialog_newer_messages(d, last_new_message_id, source);
-
-    auto last_new_message = get_message(d, last_new_message_id);
-    if (last_new_message != nullptr) {
-      add_message_to_database(d, last_new_message, source);
-      set_dialog_first_database_message_id(d, last_new_message_id, source);
-      set_dialog_last_database_message_id(d, last_new_message_id, source);
-      try_restore_dialog_reply_markup(d, last_new_message);
-    }
-  }
-
-  LOG(INFO) << "Set " << d->dialog_id << " last new message to " << last_new_message_id << " from " << source;
-  d->last_new_message_id = last_new_message_id;
-  on_dialog_updated(d->dialog_id, source);
-}
-
-void MessagesManager::set_dialog_last_clear_history_date(Dialog *d, int32 date, MessageId last_clear_history_message_id,
-                                                         const char *source, bool is_loaded_from_database) {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(!last_clear_history_message_id.is_scheduled());
-
-  if (d->last_clear_history_message_id == last_clear_history_message_id && d->last_clear_history_date == date) {
-    return;
-  }
-
-  LOG(INFO) << "Set " << d->dialog_id << " last clear history date to " << date << " of "
-            << last_clear_history_message_id << " from " << source;
-  if (d->last_clear_history_message_id.is_valid()) {
-    switch (d->dialog_id.get_type()) {
-      case DialogType::User:
-      case DialogType::Chat:
-        last_clear_history_message_id_to_dialog_id_.erase(d->last_clear_history_message_id);
-        break;
-      case DialogType::Channel:
-      case DialogType::SecretChat:
-        // nothing to do
-        break;
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  d->last_clear_history_date = date;
-  d->last_clear_history_message_id = last_clear_history_message_id;
-  if (!is_loaded_from_database) {
-    on_dialog_updated(d->dialog_id, "set_dialog_last_clear_history_date");
-  }
-
-  if (d->last_clear_history_message_id.is_valid()) {
-    switch (d->dialog_id.get_type()) {
-      case DialogType::User:
-      case DialogType::Chat:
-        last_clear_history_message_id_to_dialog_id_[d->last_clear_history_message_id] = d->dialog_id;
-        break;
-      case DialogType::Channel:
-      case DialogType::SecretChat:
-        // nothing to do
-        break;
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-    }
-  }
-}
-
-void MessagesManager::set_dialog_unread_mention_count(Dialog *d, int32 unread_mention_count) {
-  CHECK(d->unread_mention_count != unread_mention_count);
-  CHECK(unread_mention_count >= 0);
-
-  d->unread_mention_count = unread_mention_count;
-  d->message_count_by_index[message_search_filter_index(MessageSearchFilter::UnreadMention)] = unread_mention_count;
-}
-
-void MessagesManager::set_dialog_unread_reaction_count(Dialog *d, int32 unread_reaction_count) {
-  CHECK(d->unread_reaction_count != unread_reaction_count);
-  CHECK(unread_reaction_count >= 0);
-
-  d->unread_reaction_count = unread_reaction_count;
-  d->message_count_by_index[message_search_filter_index(MessageSearchFilter::UnreadReaction)] = unread_reaction_count;
-}
-
-void MessagesManager::set_dialog_is_empty(Dialog *d, const char *source) {
-  CHECK(!td_->auth_manager_->is_bot());
-  LOG(INFO) << "Set " << d->dialog_id << " is_empty to true from " << source;
-  CHECK(d->have_full_history);
-  if (!d->is_empty && d->order != DEFAULT_ORDER) {
-    td_->dialog_manager_->reload_dialog_info_full(d->dialog_id, "set_dialog_is_empty");
-  }
-  d->is_empty = true;
-
-  if (d->server_unread_count + d->local_unread_count > 0) {
-    MessageId max_message_id =
-        d->last_database_message_id.is_valid() ? d->last_database_message_id : d->last_new_message_id;
-    if (max_message_id.is_valid()) {
-      read_history_inbox(d, max_message_id, -1, "set_dialog_is_empty");
-    }
-    if (d->server_unread_count != 0 || d->local_unread_count != 0) {
-      set_dialog_last_read_inbox_message_id(d, MessageId::min(), 0, 0, true, "set_dialog_is_empty");
-    }
-  }
-  if (d->unread_mention_count > 0) {
-    set_dialog_unread_mention_count(d, 0);
-    send_update_chat_unread_mention_count(d);
-  }
-  if (d->unread_reaction_count > 0) {
-    set_dialog_unread_reaction_count(d, 0);
-    send_update_chat_unread_reaction_count(d, "set_dialog_is_empty");
-  }
-  if (d->reply_markup_message_id != MessageId()) {
-    set_dialog_reply_markup(d, MessageId());
-  }
-  std::fill(d->message_count_by_index.begin(), d->message_count_by_index.end(), 0);
-  if (d->notification_info != nullptr) {
-    d->notification_info->notification_id_to_message_id_.clear();
-  }
-
-  if (d->delete_last_message_date != 0) {
-    if (d->is_last_message_deleted_locally && d->last_clear_history_date == 0) {
-      set_dialog_last_clear_history_date(d, d->delete_last_message_date, d->deleted_last_message_id,
-                                         "set_dialog_is_empty");
-    }
-    d->delete_last_message_date = 0;
-    d->deleted_last_message_id = MessageId();
-    d->is_last_message_deleted_locally = false;
-
-    on_dialog_updated(d->dialog_id, "set_dialog_is_empty");
-  }
-  d->pending_order = DEFAULT_ORDER;
-  if (d->last_database_message_id.is_valid()) {
-    set_dialog_first_database_message_id(d, MessageId(), "set_dialog_is_empty");
-    set_dialog_last_database_message_id(d, MessageId(), "set_dialog_is_empty");
-  }
-
-  update_dialog_pos(d, source);
-}
-
-bool MessagesManager::is_dialog_pinned(DialogListId dialog_list_id, DialogId dialog_id) const {
-  if (get_dialog_pinned_order(dialog_list_id, dialog_id) != DEFAULT_ORDER) {
-    return true;
-  }
-  if (dialog_list_id.is_filter()) {
-    return td_->dialog_filter_manager_->is_dialog_pinned(dialog_list_id.get_filter_id(), dialog_id);
-  }
-  return false;
-}
-
-int64 MessagesManager::get_dialog_pinned_order(DialogListId dialog_list_id, DialogId dialog_id) const {
-  return get_dialog_pinned_order(get_dialog_list(dialog_list_id), dialog_id);
-}
-
-int64 MessagesManager::get_dialog_pinned_order(const DialogList *list, DialogId dialog_id) {
-  if (list != nullptr && !list->pinned_dialog_id_orders_.empty()) {
-    auto it = list->pinned_dialog_id_orders_.find(dialog_id);
-    if (it != list->pinned_dialog_id_orders_.end()) {
-      return it->second;
-    }
-  }
-  return DEFAULT_ORDER;
-}
-
-bool MessagesManager::set_dialog_is_pinned(DialogId dialog_id, bool is_pinned) {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  return set_dialog_is_pinned(DialogListId(d->folder_id), d, is_pinned);
-}
-
-// only removes the Dialog from the dialog list, but changes nothing in the corresponding DialogFilter
-bool MessagesManager::set_dialog_is_pinned(DialogListId dialog_list_id, Dialog *d, bool is_pinned,
-                                           bool need_update_dialog_lists) {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  CHECK(d != nullptr);
-  if (d->order == DEFAULT_ORDER && is_pinned) {
-    // the chat can't be pinned
-    return false;
-  }
-
-  auto positions = get_dialog_positions(d);
-  auto *list = get_dialog_list(dialog_list_id);
-  if (list == nullptr) {
-    return false;
-  }
-  if (!list->are_pinned_dialogs_inited_) {
-    return false;
-  }
-  auto dialog_id = d->dialog_id;
-  auto is_changed_dialog = [dialog_id](const DialogDate &dialog_date) {
-    return dialog_date.get_dialog_id() == dialog_id;
-  };
-  if (is_pinned) {
-    if (!list->pinned_dialogs_.empty() && is_changed_dialog(list->pinned_dialogs_[0])) {
-      return false;
-    }
-    auto order = get_next_pinned_dialog_order();
-    DialogDate dialog_date(order, dialog_id);
-    add_to_top_if(list->pinned_dialogs_, list->pinned_dialogs_.size() + 1, dialog_date, is_changed_dialog);
-    auto it = list->pinned_dialog_id_orders_.find(dialog_id);
-    if (it != list->pinned_dialog_id_orders_.end()) {
-      CHECK(list->pinned_dialogs_[0] != dialog_date);
-      list->pinned_dialogs_[0] = dialog_date;
-      it->second = order;
-    } else {
-      CHECK(list->pinned_dialogs_[0] == dialog_date);
-      list->pinned_dialog_id_orders_.emplace(dialog_id, order);
-    }
-  } else {
-    if (!td::remove_if(list->pinned_dialogs_, is_changed_dialog)) {
-      return false;
-    }
-    list->pinned_dialog_id_orders_.erase(dialog_id);
-  }
-
-  LOG(INFO) << "Set " << d->dialog_id << " is pinned in " << dialog_list_id << " to " << is_pinned;
-
-  save_pinned_folder_dialog_ids(*list);
-
-  if (need_update_dialog_lists) {
-    update_dialog_lists(d, std::move(positions), true, false, "set_dialog_is_pinned");
-  }
-  return true;
-}
-
-void MessagesManager::save_pinned_folder_dialog_ids(const DialogList &list) const {
-  if (!list.dialog_list_id.is_folder() || !G()->use_message_database()) {
-    return;
-  }
-  G()->td_db()->get_binlog_pmc()->set(
-      PSTRING() << "pinned_dialog_ids" << list.dialog_list_id.get_folder_id().get(),
-      implode(transform(list.pinned_dialogs_,
-                        [](auto &pinned_dialog) { return PSTRING() << pinned_dialog.get_dialog_id().get(); }),
-              ','));
-}
-
-void MessagesManager::set_dialog_reply_markup(Dialog *d, MessageId message_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(!message_id.is_scheduled());
-
-  if (d->reply_markup_message_id != message_id) {
-    on_dialog_updated(d->dialog_id, "set_dialog_reply_markup");
-  }
-
-  d->need_restore_reply_markup = false;
-
-  if (d->reply_markup_message_id.is_valid() || message_id.is_valid()) {
-    LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in set_dialog_reply_markup";
-    d->reply_markup_message_id = message_id;
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatReplyMarkup>(
-                     get_chat_id_object(d->dialog_id, "updateChatReplyMarkup"), message_id.get()));
-  }
-}
-
-void MessagesManager::try_restore_dialog_reply_markup(Dialog *d, const Message *m) {
-  if (!d->need_restore_reply_markup || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(!m->message_id.is_scheduled());
-  if (m->had_reply_markup) {
-    LOG(INFO) << "Restore deleted reply markup in " << d->dialog_id;
-    set_dialog_reply_markup(d, MessageId());
-  } else if (m->reply_markup != nullptr && m->reply_markup->type != ReplyMarkup::Type::InlineKeyboard &&
-             m->reply_markup->is_personal) {
-    LOG(INFO) << "Restore reply markup in " << d->dialog_id << " to " << m->message_id;
-    set_dialog_reply_markup(d, m->message_id);
-  }
-}
-
-void MessagesManager::set_dialog_pinned_message_notification(Dialog *d, MessageId message_id, const char *source) {
-  CHECK(d != nullptr);
-  CHECK(!message_id.is_scheduled());
-  if (d->notification_info == nullptr && message_id == MessageId()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  auto notification_info = add_dialog_notification_info(d);
-  auto old_message_id = notification_info->pinned_message_notification_message_id_;
-  if (old_message_id == message_id) {
-    return;
-  }
-  VLOG(notifications) << "Change pinned message notification in " << d->dialog_id << " from " << old_message_id
-                      << " to " << message_id;
-  if (old_message_id.is_valid()) {
-    auto m = get_message_force(d, old_message_id, source);
-    if (m != nullptr && m->notification_id.is_valid() && is_message_notification_active(d, m)) {
-      // Can't remove pinned_message_notification_message_id before the call,
-      // because the notification needs to be still active inside remove_message_notification_id
-      remove_message_notification_id(d, m, true, false, true);
-      on_message_changed(d, m, false, source);
-    } else {
-      send_closure_later(G()->notification_manager(), &NotificationManager::remove_temporary_notification_by_object_id,
-                         notification_info->mention_notification_group_.get_group_id(), old_message_id, false, source);
-    }
-  }
-  notification_info->pinned_message_notification_message_id_ = message_id;
-  on_dialog_updated(d->dialog_id, source);
-}
-
-void MessagesManager::remove_dialog_pinned_message_notification(Dialog *d, const char *source) {
-  set_dialog_pinned_message_notification(d, MessageId(), source);
-}
-
-void MessagesManager::remove_scope_pinned_message_notifications(NotificationSettingsScope scope) {
-  VLOG(notifications) << "Remove pinned message notifications in " << scope;
-  dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-    Dialog *d = dialog.get();
-    if (d->notification_settings.use_default_disable_pinned_message_notifications && d->notification_info != nullptr &&
-        d->notification_info->mention_notification_group_.is_valid() &&
-        d->notification_info->pinned_message_notification_message_id_.is_valid() &&
-        td_->dialog_manager_->get_dialog_notification_setting_scope(dialog_id) == scope) {
-      remove_dialog_pinned_message_notification(d, "remove_scope_pinned_message_notifications");
-    }
-  });
-}
-
-void MessagesManager::on_update_scope_mention_notifications(NotificationSettingsScope scope,
-                                                            bool disable_mention_notifications) {
-  VLOG(notifications) << "Remove mention notifications in " << scope;
-  dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-    Dialog *d = dialog.get();
-    if (d->notification_settings.use_default_disable_mention_notifications &&
-        td_->dialog_manager_->get_dialog_notification_setting_scope(dialog_id) == scope) {
-      if (!disable_mention_notifications) {
-        update_dialog_mention_notification_count(d);
-      } else {
-        remove_dialog_mention_notifications(d);
-      }
-    }
-  });
-}
-
-void MessagesManager::remove_dialog_mention_notifications(Dialog *d) {
-  if (d->notification_info == nullptr || !d->notification_info->mention_notification_group_.is_valid() ||
-      d->unread_mention_count == 0) {
-    return;
-  }
-  CHECK(!d->being_added_message_id.is_valid());
-
-  VLOG(notifications) << "Remove mention notifications in " << d->dialog_id;
-
-  auto message_ids = find_dialog_messages(d, [](const Message *m) { return m->contains_unread_mention; });
-  VLOG(notifications) << "Found unread mentions in " << message_ids;
-  FlatHashSet<NotificationId, NotificationIdHash> removed_notification_ids_set;
-  for (auto &message_id : message_ids) {
-    auto m = get_message(d, message_id);
-    CHECK(m != nullptr);
-    CHECK(m->message_id.is_valid());
-    if (m->notification_id.is_valid() && is_message_notification_active(d, m) &&
-        is_from_mention_notification_group(m)) {
-      removed_notification_ids_set.insert(m->notification_id);
-    }
-  }
-
-  auto notification_group_id = d->notification_info->mention_notification_group_.get_group_id();
-  CHECK(notification_group_id.is_valid());
-  message_ids = td_->notification_manager_->get_notification_group_message_ids(notification_group_id);
-  VLOG(notifications) << "Found active mention notifications in " << message_ids;
-  for (auto &message_id : message_ids) {
-    CHECK(!message_id.is_scheduled());
-    if (message_id != d->notification_info->pinned_message_notification_message_id_) {
-      auto m = get_message_force(d, message_id, "remove_dialog_mention_notifications");
-      if (m != nullptr && m->notification_id.is_valid()) {
-        CHECK(is_from_mention_notification_group(m));
-        if (is_message_notification_active(d, m)) {
-          removed_notification_ids_set.insert(m->notification_id);
-        }
-      }
-    }
-  }
-
-  vector<NotificationId> removed_notification_ids;
-  for (auto notification_id : removed_notification_ids_set) {
-    removed_notification_ids.push_back(notification_id);
-  }
-  for (size_t i = 0; i < removed_notification_ids.size(); i++) {
-    send_closure_later(G()->notification_manager(), &NotificationManager::remove_notification, notification_group_id,
-                       removed_notification_ids[i], false, i + 1 == removed_notification_ids.size(), Promise<Unit>(),
-                       "remove_dialog_mention_notifications");
-  }
-}
-
-void MessagesManager::set_dialog_last_notification(DialogId dialog_id, NotificationGroupInfo &group_info,
-                                                   int32 last_notification_date, NotificationId last_notification_id,
-                                                   const char *source) {
-  if (group_info.set_last_notification(last_notification_date, last_notification_id, source)) {
-    on_dialog_updated(dialog_id, "set_dialog_last_notification");
-  }
-}
-
-void MessagesManager::set_dialog_last_notification_checked(DialogId dialog_id, NotificationGroupInfo &group_info,
-                                                           int32 last_notification_date,
-                                                           NotificationId last_notification_id, const char *source) {
-  bool is_changed = group_info.set_last_notification(last_notification_date, last_notification_id, source);
-  CHECK(is_changed);
-  on_dialog_updated(dialog_id, "set_dialog_last_notification_checked");
-}
-
-void MessagesManager::on_update_sent_text_message(int64 random_id,
-                                                  tl_object_ptr<telegram_api::MessageMedia> message_media,
-                                                  vector<tl_object_ptr<telegram_api::MessageEntity>> &&entities) {
-  int32 message_media_id = message_media == nullptr ? telegram_api::messageMediaEmpty::ID : message_media->get_id();
-  LOG_IF(ERROR, message_media_id != telegram_api::messageMediaWebPage::ID &&
-                    message_media_id != telegram_api::messageMediaEmpty::ID)
-      << "Receive non web-page media for text message: " << oneline(to_string(message_media));
-
-  auto it = being_sent_messages_.find(random_id);
-  if (it == being_sent_messages_.end()) {
-    // result of sending message has already been received through getDifference
-    return;
-  }
-
-  auto message_full_id = it->second;
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog(dialog_id);
-  auto m = get_message_force(d, message_full_id.get_message_id(), "on_update_sent_text_message");
-  if (m == nullptr) {
-    // message has already been deleted
-    return;
-  }
-  CHECK(m->message_id.is_yet_unsent());
-  message_full_id = MessageFullId(dialog_id, m->message_id);
-
-  if (m->content->get_type() != MessageContentType::Text) {
-    LOG(ERROR) << "Text message content has been already changed to " << m->content->get_type();
-    return;
-  }
-
-  const FormattedText *old_message_text = get_message_content_text(m->content.get());
-  CHECK(old_message_text != nullptr);
-  FormattedText new_message_text = get_message_text(
-      td_->user_manager_.get(), old_message_text->text, std::move(entities), true, td_->auth_manager_->is_bot(),
-      get_message_original_date(m), m->media_album_id != 0, "on_update_sent_text_message");
-  auto new_content = get_message_content(td_, std::move(new_message_text), std::move(message_media), dialog_id, m->date,
-                                         true /*likely ignored*/, UserId() /*likely ignored*/, nullptr /*ignored*/,
-                                         nullptr, "on_update_sent_text_message");
-  if (new_content->get_type() != MessageContentType::Text) {
-    LOG(ERROR) << "Text message content has changed to " << new_content->get_type();
-    return;
-  }
-
-  bool need_update = false;
-  bool is_content_changed = false;
-  merge_message_contents(td_, m->content.get(), new_content.get(), need_message_changed_warning(m), dialog_id, false,
-                         is_content_changed, need_update);
-  compare_message_contents(td_, m->content.get(), new_content.get(), is_content_changed, need_update);
-
-  if (is_content_changed || need_update) {
-    reregister_message_content(td_, m->content.get(), new_content.get(), message_full_id,
-                               "on_update_sent_text_message");
-    m->content = std::move(new_content);
-    m->is_content_secret = m->ttl.is_secret_message_content(MessageContentType::Text);
-
-    if (need_update) {
-      send_update_message_content(d, m, true, "on_update_sent_text_message");
-    }
-    on_message_changed(d, m, need_update, "on_update_sent_text_message");
-  }
-}
-
-void MessagesManager::delete_pending_message_web_page(MessageFullId message_full_id) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  Message *m = get_message(d, message_full_id.get_message_id());
-  CHECK(m != nullptr);
-
-  MessageContent *content = m->content.get();
-  CHECK(has_message_content_web_page(content));
-  unregister_message_content(td_, content, message_full_id, "delete_pending_message_web_page");
-  remove_message_content_web_page(content);
-  register_message_content(td_, content, message_full_id, "delete_pending_message_web_page");
-
-  // don't need to send an updateMessageContent, because the web page was pending
-
-  on_message_changed(d, m, false, "delete_pending_message_web_page");
-}
-
-void MessagesManager::on_get_dialogs(FolderId folder_id, vector<tl_object_ptr<telegram_api::Dialog>> &&dialog_folders,
-                                     int32 total_count, vector<tl_object_ptr<telegram_api::Message>> &&messages,
-                                     Promise<Unit> &&promise) {
-  if (td_->updates_manager_->running_get_difference()) {
-    LOG(INFO) << "Postpone result of getDialogs";
-    pending_on_get_dialogs_.push_back(PendingOnGetDialogs{folder_id, std::move(dialog_folders), total_count,
-                                                          std::move(messages), std::move(promise)});
-    return;
-  }
-  bool from_dialog_list = total_count >= 0;
-  bool from_get_dialog = total_count == -1;
-  bool from_pinned_dialog_list = total_count == -2;
-
-  if (from_get_dialog && dialog_folders.size() == 1 && dialog_folders[0]->get_id() == telegram_api::dialog::ID) {
-    DialogId dialog_id(static_cast<const telegram_api::dialog *>(dialog_folders[0].get())->peer_);
-    if (dialog_id.is_valid() && running_get_channel_difference(dialog_id)) {
-      LOG(INFO) << "Postpone result of channels getDialogs for " << dialog_id;
-      pending_channel_on_get_dialogs_[dialog_id].push_back(PendingOnGetDialogs{
-          folder_id, std::move(dialog_folders), total_count, std::move(messages), std::move(promise)});
-      return;
-    }
-  }
-
-  vector<telegram_api::object_ptr<telegram_api::dialog>> dialogs;
-  for (auto &dialog_folder : dialog_folders) {
-    switch (dialog_folder->get_id()) {
-      case telegram_api::dialog::ID:
-        dialogs.push_back(telegram_api::move_object_as<telegram_api::dialog>(dialog_folder));
-        break;
-      case telegram_api::dialogFolder::ID: {
-        auto folder = telegram_api::move_object_as<telegram_api::dialogFolder>(dialog_folder);
-        if (from_pinned_dialog_list) {
-          // TODO update unread_muted_peers_count:int unread_unmuted_peers_count:int
-          // unread_muted_messages_count:int unread_unmuted_messages_count:int
-          FolderId folder_folder_id(folder->folder_->id_);
-          if (folder_folder_id == FolderId::archive()) {
-            // archive is expected in pinned dialogs list
-            break;
-          }
-        }
-        LOG(ERROR) << "Receive unexpected " << to_string(folder);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  const char *source = nullptr;
-  if (from_get_dialog) {
-    LOG(INFO) << "Process " << dialogs.size() << " chats";
-    source = "get chat";
-  } else if (from_pinned_dialog_list) {
-    LOG(INFO) << "Process " << dialogs.size() << " pinned chats in " << folder_id;
-    source = "get pinned chats";
-  } else {
-    LOG(INFO) << "Process " << dialogs.size() << " chats out of " << total_count << " in " << folder_id;
-    source = "get chat list";
-  }
-  FlatHashMap<MessageFullId, DialogDate, MessageFullIdHash> message_full_id_to_dialog_date;
-  FlatHashMap<MessageFullId, tl_object_ptr<telegram_api::Message>, MessageFullIdHash> message_full_id_to_message;
-  for (auto &message : messages) {
-    auto message_full_id = MessageFullId::get_message_full_id(message, false);
-    if (!message_full_id.get_message_id().is_valid()) {  // must not check dialog_id because of messageEmpty
-      continue;
-    }
-    if (from_dialog_list) {
-      auto message_date = get_message_date(message);
-      int64 order = get_dialog_order(message_full_id.get_message_id(), message_date);
-      message_full_id_to_dialog_date.emplace(message_full_id, DialogDate(order, message_full_id.get_dialog_id()));
-    }
-    message_full_id_to_message[message_full_id] = std::move(message);
-  }
-
-  DialogDate max_dialog_date = MIN_DIALOG_DATE;
-  for (auto &dialog : dialogs) {
-    //    LOG(INFO) << to_string(dialog);
-    DialogId dialog_id(dialog->peer_);
-    bool has_pts = dialog->pts_ > 0;
-
-    if (!dialog_id.is_valid()) {
-      LOG(ERROR) << "Receive wrong " << dialog_id;
-      return promise.set_error(Status::Error(500, "Wrong query result returned: receive wrong chat identifier"));
-    }
-    switch (dialog_id.get_type()) {
-      case DialogType::User:
-      case DialogType::Chat:
-        if (has_pts) {
-          LOG(ERROR) << "Receive user or group " << dialog_id << " with PTS";
-          return promise.set_error(
-              Status::Error(500, "Wrong query result returned: receive user or basic group chat with PTS"));
-        }
-        break;
-      case DialogType::Channel:
-        if (!has_pts) {
-          LOG(ERROR) << "Receive channel " << dialog_id << " without PTS";
-          return promise.set_error(
-              Status::Error(500, "Wrong query result returned: receive supergroup chat without PTS"));
-        }
-        break;
-      case DialogType::SecretChat:
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-        return promise.set_error(Status::Error(500, "UNREACHABLE"));
-    }
-
-    if (from_dialog_list) {
-      MessageId last_message_id(ServerMessageId(dialog->top_message_));
-      if (last_message_id.is_valid()) {
-        MessageFullId message_full_id(dialog_id, last_message_id);
-        auto it = message_full_id_to_dialog_date.find(message_full_id);
-        if (it == message_full_id_to_dialog_date.end() && dialog_id.get_type() != DialogType::Channel) {
-          it = message_full_id_to_dialog_date.find({DialogId(), last_message_id});
-        }
-        if (it == message_full_id_to_dialog_date.end()) {
-          LOG(ERROR) << "Last " << last_message_id << " in " << dialog_id << " not found";
-          return promise.set_error(Status::Error(500, "Wrong query result returned: last message not found"));
-        }
-        FolderId dialog_folder_id(dialog->folder_id_);
-        if (dialog_folder_id != folder_id) {
-          LOG(ERROR) << "Receive " << dialog_id << " in " << dialog_folder_id << " instead of " << folder_id;
-          continue;
-        }
-
-        DialogDate dialog_date = it->second;
-        if (dialog_date.get_date() > 0 && dialog_date.get_dialog_id() == dialog_id && max_dialog_date < dialog_date) {
-          max_dialog_date = dialog_date;
-        }
-      } else {
-        LOG(ERROR) << "Receive " << last_message_id << " as last chat message";
-        continue;
-      }
-    }
-  }
-
-  if (from_dialog_list && total_count < narrow_cast<int32>(dialogs.size())) {
-    LOG(ERROR) << "Receive chat total_count = " << total_count << ", but " << dialogs.size() << " chats";
-    total_count = narrow_cast<int32>(dialogs.size());
-  }
-
-  vector<DialogId> added_dialog_ids;
-  for (auto &dialog : dialogs) {
-    MessageId last_message_id(ServerMessageId(dialog->top_message_));
-    if (!last_message_id.is_valid() && from_dialog_list) {
-      // skip dialogs without messages
-      total_count--;
-      continue;
-    }
-
-    DialogId dialog_id(dialog->peer_);
-    if (td::contains(added_dialog_ids, dialog_id)) {
-      LOG(ERROR) << "Receive " << dialog_id << " twice in result of getChats with total_count = " << total_count;
-      continue;
-    }
-    added_dialog_ids.push_back(dialog_id);
-    Dialog *d = get_dialog_force(dialog_id, source);
-    bool need_update_dialog_pos = false;
-    CHECK(!being_added_dialog_id_.is_valid());
-    being_added_dialog_id_ = dialog_id;
-    if (d == nullptr) {
-      d = add_dialog(dialog_id, source);
-      need_update_dialog_pos = true;
-    } else {
-      LOG(INFO) << "Receive already created " << dialog_id;
-      CHECK(d->dialog_id == dialog_id);
-    }
-    bool is_new = d->last_new_message_id == MessageId();
-    auto positions = get_dialog_positions(d);
-
-    set_dialog_folder_id(d, FolderId(dialog->folder_id_));
-    if (dialog_id.get_type() == DialogType::Channel) {
-      set_dialog_view_as_messages(d, dialog->view_forum_as_messages_, "on_get_dialogs");
-    }
-
-    on_update_dialog_notify_settings(dialog_id, std::move(dialog->notify_settings_), source);
-    if (!d->notification_settings.is_synchronized && !td_->auth_manager_->is_bot()) {
-      LOG(ERROR) << "Failed to synchronize settings in " << dialog_id;
-      d->notification_settings.is_synchronized = true;
-      on_dialog_updated(dialog_id, "set notification_settings.is_synchronized");
-    }
-
-    if (dialog->unread_count_ < 0) {
-      LOG(ERROR) << "Receive " << dialog->unread_count_ << " as number of unread messages in " << dialog_id;
-      dialog->unread_count_ = 0;
-    }
-    MessageId read_inbox_max_message_id = MessageId(ServerMessageId(dialog->read_inbox_max_id_));
-    if (!read_inbox_max_message_id.is_valid() && read_inbox_max_message_id != MessageId()) {
-      LOG(ERROR) << "Receive " << read_inbox_max_message_id << " as last read inbox message in " << dialog_id;
-      read_inbox_max_message_id = MessageId();
-    }
-    MessageId read_outbox_max_message_id = MessageId(ServerMessageId(dialog->read_outbox_max_id_));
-    if (!read_outbox_max_message_id.is_valid() && read_outbox_max_message_id != MessageId()) {
-      LOG(ERROR) << "Receive " << read_outbox_max_message_id << " as last read outbox message in " << dialog_id;
-      read_outbox_max_message_id = MessageId();
-    }
-    if (dialog->unread_mentions_count_ < 0) {
-      LOG(ERROR) << "Receive " << dialog->unread_mentions_count_ << " as number of unread mention messages in "
-                 << dialog_id;
-      dialog->unread_mentions_count_ = 0;
-    }
-    if (dialog->unread_reactions_count_ < 0) {
-      LOG(ERROR) << "Receive " << dialog->unread_reactions_count_ << " as number of messages with unread reactions in "
-                 << dialog_id;
-      dialog->unread_reactions_count_ = 0;
-    }
-    if (dialog->ttl_period_ < 0) {
-      LOG(ERROR) << "Receive " << dialog->ttl_period_ << " as message auto-delete time in " << dialog_id;
-      dialog->ttl_period_ = 0;
-    }
-    if (!td_->auth_manager_->is_bot()) {
-      const char *reload_source = nullptr;
-      if (!d->is_is_blocked_for_stories_inited) {
-        reload_source = "on_get_dialogs init is_blocked_for_stories";
-      } else if (!d->is_has_bots_inited) {
-        reload_source = "on_get_dialogs init has_bots";
-      } else if (!d->is_background_inited) {
-        reload_source = "on_get_dialogs init background";
-      } else if (!d->is_theme_name_inited) {
-        reload_source = "on_get_dialogs init theme_name";
-      } else if (!d->is_available_reactions_inited) {
-        reload_source = "on_get_dialogs init available_reactions";
-      } else if (!d->is_last_pinned_message_id_inited) {
-        get_dialog_pinned_message(dialog_id, Auto());
-      }
-      if (reload_source != nullptr) {
-        // asynchronously get dialog info from the server
-        // TODO add is_blocked/is_blocked_for_stories/has_bots/background/theme_name/available_reactions
-        // to telegram_api::dialog
-        td_->dialog_manager_->reload_dialog_info_full(dialog_id, reload_source);
-      }
-    }
-
-    need_update_dialog_pos |=
-        update_dialog_draft_message(d, get_draft_message(td_, std::move(dialog->draft_)), true, false);
-    if (is_new) {
-      bool has_pts = dialog->pts_ > 0;
-      if (last_message_id.is_valid() && !td_->auth_manager_->is_bot()) {
-        MessageFullId message_full_id(dialog_id, last_message_id);
-        auto it = message_full_id_to_message.find(message_full_id);
-        if (it == message_full_id_to_message.end() && dialog_id.get_type() != DialogType::Channel) {
-          it = message_full_id_to_message.find({DialogId(), last_message_id});
-        }
-        if (it == message_full_id_to_message.end()) {
-          LOG(ERROR) << "Last " << message_full_id << " not found";
-        } else if (!has_pts || d->pts == 0 || dialog->pts_ <= d->pts || d->is_channel_difference_finished) {
-          auto added_message_full_id = on_get_message(std::move(it->second), false, has_pts, false, source);
-          message_full_id_to_message.erase(it);
-          CHECK(d->last_new_message_id == MessageId());
-          set_dialog_last_new_message_id(d, last_message_id, source);
-          if (d->last_new_message_id > d->last_message_id && added_message_full_id.get_message_id().is_valid()) {
-            CHECK(added_message_full_id.get_message_id() == d->last_new_message_id);
-            set_dialog_last_message_id(d, d->last_new_message_id, source);
-            send_update_chat_last_message(d, source);
-          }
-        } else if (dialog_id.get_type() == DialogType::Channel) {
-          get_channel_difference(dialog_id, d->pts, dialog->pts_, last_message_id, true, source);
-        }
-      }
-
-      if (has_pts && !running_get_channel_difference(dialog_id)) {
-        set_channel_pts(d, dialog->pts_, source);
-      }
-    }
-    bool is_marked_as_unread = dialog->unread_mark_;
-    if (is_marked_as_unread != d->is_marked_as_unread) {
-      set_dialog_is_marked_as_unread(d, is_marked_as_unread);
-    }
-
-    if (need_update_dialog_pos) {
-      update_dialog_pos(d, source);
-    }
-
-    if (!td_->auth_manager_->is_bot() && !from_pinned_dialog_list) {
-      // set is_pinned only after updating chat position to ensure that order is initialized
-      bool is_pinned = dialog->pinned_;
-      bool was_pinned = is_dialog_pinned(DialogListId(d->folder_id), dialog_id);
-      if (is_pinned != was_pinned) {
-        set_dialog_is_pinned(DialogListId(d->folder_id), d, is_pinned);
-      }
-    }
-
-    if (!G()->use_message_database() || is_new || !d->is_last_read_inbox_message_id_inited ||
-        d->need_repair_server_unread_count) {
-      if (d->last_read_inbox_message_id.is_valid() && !d->last_read_inbox_message_id.is_server() &&
-          read_inbox_max_message_id == d->last_read_inbox_message_id.get_prev_server_message_id()) {
-        read_inbox_max_message_id = d->last_read_inbox_message_id;
-      }
-      if (d->need_repair_server_unread_count &&
-          (d->last_read_inbox_message_id <= read_inbox_max_message_id || !need_unread_counter(d->order) ||
-           !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read))) {
-        LOG(INFO) << "Repaired server unread count in " << dialog_id << " from " << d->last_read_inbox_message_id << "/"
-                  << d->server_unread_count << " to " << read_inbox_max_message_id << "/" << dialog->unread_count_;
-        d->need_repair_server_unread_count = false;
-        on_dialog_updated(dialog_id, "repaired dialog server unread count");
-      }
-      if (d->need_repair_server_unread_count) {
-        auto &previous_message_id = previous_repaired_read_inbox_max_message_id_[dialog_id];
-        if (previous_message_id >= read_inbox_max_message_id) {
-          // protect from sending the request in a loop
-          if (d->server_unread_count != 0) {
-            LOG(ERROR) << "Failed to repair server unread count in " << dialog_id
-                       << ", because receive read_inbox_max_message_id = " << read_inbox_max_message_id << " after "
-                       << previous_message_id << ", but messages are read up to " << d->last_read_inbox_message_id;
-          } else {
-            LOG(INFO) << "Failed to repair server unread count in " << dialog_id
-                      << ", because receive read_inbox_max_message_id = " << read_inbox_max_message_id
-                      << ", but messages are read up to " << d->last_read_inbox_message_id
-                      << ". Likely all messages after " << read_inbox_max_message_id << " are outgoing";
-          }
-          d->need_repair_server_unread_count = false;
-          on_dialog_updated(dialog_id, "failed to repair dialog server unread count");
-        } else {
-          LOG(INFO) << "Have last_read_inbox_message_id = " << d->last_read_inbox_message_id << ", but received only "
-                    << read_inbox_max_message_id << " from the server, trying to repair server unread count again";
-          previous_message_id = read_inbox_max_message_id;
-          repair_server_unread_count(dialog_id, d->server_unread_count, source);
-        }
-      }
-      if (!d->need_repair_server_unread_count) {
-        previous_repaired_read_inbox_max_message_id_.erase(dialog_id);
-      }
-      if ((d->server_unread_count != dialog->unread_count_ &&
-           d->last_read_inbox_message_id == read_inbox_max_message_id) ||
-          d->last_read_inbox_message_id < read_inbox_max_message_id) {
-        set_dialog_last_read_inbox_message_id(d, read_inbox_max_message_id, dialog->unread_count_,
-                                              d->local_unread_count, true, source);
-      }
-      if (!d->is_last_read_inbox_message_id_inited) {
-        d->is_last_read_inbox_message_id_inited = true;
-        on_dialog_updated(dialog_id, "set is_last_read_inbox_message_id_inited");
-      }
-    }
-
-    if (!G()->use_message_database() || is_new || !d->is_last_read_outbox_message_id_inited) {
-      if (d->last_read_outbox_message_id < read_outbox_max_message_id) {
-        set_dialog_last_read_outbox_message_id(d, read_outbox_max_message_id);
-      }
-      if (!d->is_last_read_outbox_message_id_inited) {
-        d->is_last_read_outbox_message_id_inited = true;
-        on_dialog_updated(dialog_id, "set is_last_read_outbox_message_id_inited");
-      }
-    }
-
-    if (!G()->use_message_database() || is_new || d->need_repair_unread_mention_count) {
-      if (d->need_repair_unread_mention_count) {
-        if (d->unread_mention_count != dialog->unread_mentions_count_) {
-          LOG(INFO) << "Repaired unread mention count in " << dialog_id << " from " << d->unread_mention_count << " to "
-                    << dialog->unread_mentions_count_;
-        }
-        d->need_repair_unread_mention_count = false;
-        on_dialog_updated(dialog_id, "repaired dialog unread mention count");
-      }
-      if (d->unread_mention_count != dialog->unread_mentions_count_ && !td_->auth_manager_->is_bot()) {
-        set_dialog_unread_mention_count(d, dialog->unread_mentions_count_);
-        update_dialog_mention_notification_count(d);
-        send_update_chat_unread_mention_count(d);
-      }
-    }
-    if (!G()->use_message_database() || is_new || d->need_repair_unread_reaction_count) {
-      if (d->need_repair_unread_reaction_count) {
-        if (d->unread_reaction_count != dialog->unread_reactions_count_) {
-          LOG(INFO) << "Repaired unread reaction count in " << dialog_id << " from " << d->unread_reaction_count
-                    << " to " << dialog->unread_reactions_count_;
-        }
-        d->need_repair_unread_reaction_count = false;
-        on_dialog_updated(dialog_id, "repaired dialog unread reaction count");
-      }
-      if (d->unread_reaction_count != dialog->unread_reactions_count_ && !td_->auth_manager_->is_bot()) {
-        set_dialog_unread_reaction_count(d, dialog->unread_reactions_count_);
-        // update_dialog_reaction_notification_count(d);
-        send_update_chat_unread_reaction_count(d, source);
-      }
-    }
-
-    set_dialog_message_ttl(d, MessageTtl(dialog->ttl_period_));
-
-    being_added_dialog_id_ = DialogId();
-
-    update_dialog_lists(d, std::move(positions), true, false, source);
-
-    if ((from_dialog_list || from_pinned_dialog_list) && d->order == DEFAULT_ORDER) {
-      load_last_dialog_message(d, "on_get_dialog");
-    }
-  }
-
-  if (from_dialog_list) {
-    CHECK(!td_->auth_manager_->is_bot());
-    CHECK(total_count >= 0);
-
-    auto &folder_list = add_dialog_list(DialogListId(folder_id));
-    if (folder_list.server_dialog_total_count_ != total_count) {
-      auto old_dialog_total_count = get_dialog_total_count(folder_list);
-      folder_list.server_dialog_total_count_ = total_count;
-      if (folder_list.is_dialog_unread_count_inited_) {
-        if (old_dialog_total_count != get_dialog_total_count(folder_list)) {
-          send_update_unread_chat_count(folder_list, DialogId(), true, source);
-        } else {
-          save_unread_chat_count(folder_list);
-        }
-      }
-    }
-
-    auto *folder = get_dialog_folder(folder_id);
-    CHECK(folder != nullptr);
-    if (dialogs.empty()) {
-      // if there are no more dialogs on the server
-      max_dialog_date = MAX_DIALOG_DATE;
-    }
-    if (folder->last_server_dialog_date_ < max_dialog_date) {
-      folder->last_server_dialog_date_ = max_dialog_date;
-      update_last_dialog_date(folder_id);
-    } else if (promise) {
-      LOG(ERROR) << "Last server dialog date didn't increased from " << folder->last_server_dialog_date_ << " to "
-                 << max_dialog_date << " after receiving " << dialogs.size() << " chats " << added_dialog_ids
-                 << " from " << total_count << " in " << folder_id
-                 << ". last_dialog_date = " << folder->folder_last_dialog_date_
-                 << ", last_loaded_database_dialog_date = " << folder->last_loaded_database_dialog_date_;
-    }
-  }
-  if (from_pinned_dialog_list) {
-    CHECK(!td_->auth_manager_->is_bot());
-    auto *folder_list = get_dialog_list(DialogListId(folder_id));
-    CHECK(folder_list != nullptr);
-    auto pinned_dialog_ids = DialogId::remove_secret_chat_dialog_ids(get_pinned_dialog_ids(DialogListId(folder_id)));
-    bool are_pinned_dialogs_saved = folder_list->are_pinned_dialogs_inited_;
-    folder_list->are_pinned_dialogs_inited_ = true;
-    if (pinned_dialog_ids != added_dialog_ids) {
-      if (set_folder_pinned_dialogs(folder_id, std::move(pinned_dialog_ids), std::move(added_dialog_ids))) {
-        are_pinned_dialogs_saved = true;
-      }
-    } else {
-      LOG(INFO) << "Pinned chats are not changed";
-    }
-    update_list_last_pinned_dialog_date(*folder_list);
-
-    if (!are_pinned_dialogs_saved && G()->use_message_database()) {
-      LOG(INFO) << "Save empty pinned chat list in " << folder_id;
-      G()->td_db()->get_binlog_pmc()->set(PSTRING() << "pinned_dialog_ids" << folder_id.get(), "");
-    }
-  }
-  promise.set_value(Unit());
-}
-
-bool MessagesManager::is_message_unload_enabled() const {
-  return G()->use_message_database() || td_->auth_manager_->is_bot();
-}
-
-bool MessagesManager::can_unload_message(const Dialog *d, const Message *m) const {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  CHECK(m->message_id.is_valid());
-  MessageFullId message_full_id{d->dialog_id, m->message_id};
-  if (td_->auth_manager_->is_bot() && !G()->use_message_database()) {
-    return !m->message_id.is_yet_unsent() && replied_by_yet_unsent_messages_.count(message_full_id) == 0 &&
-           get_edited_message_content(message_full_id) == nullptr && m->message_id != d->last_pinned_message_id &&
-           m->message_id != d->last_edited_message_id;
-  }
-  // don't want to unload messages from opened dialogs
-  // don't want to unload messages to which there are replies in yet unsent messages
-  // don't want to unload message with active reply markup
-  // don't want to unload the newest pinned message
-  // don't want to unload last edited message, because server can send updateEditChannelMessage again
-  // don't want to unload messages from the last album
-  // can't unload from memory last dialog, last database messages, yet unsent messages, being edited media messages and active live locations
-  // can't unload messages in dialog with active suffix load query
-  {
-    auto it = dialog_suffix_load_queries_.find(d->dialog_id);
-    if (it != dialog_suffix_load_queries_.end() && !it->second->suffix_load_queries_.empty()) {
-      return false;
-    }
-  }
-  return d->open_count == 0 && m->message_id != d->last_message_id && m->message_id != d->last_database_message_id &&
-         !m->message_id.is_yet_unsent() && active_live_location_message_full_ids_.count(message_full_id) == 0 &&
-         replied_by_yet_unsent_messages_.count(message_full_id) == 0 &&
-         get_edited_message_content(message_full_id) == nullptr && m->message_id != d->reply_markup_message_id &&
-         m->message_id != d->last_pinned_message_id && m->message_id != d->last_edited_message_id &&
-         (m->media_album_id != d->last_media_album_id || m->media_album_id == 0);
-}
-
-unique_ptr<MessagesManager::Message> MessagesManager::unload_message(Dialog *d, MessageId message_id) {
-  CHECK(d != nullptr);
-  CHECK(message_id.is_valid());
-  bool need_update_dialog_pos = false;
-  auto message = do_delete_message(d, message_id, false, true, &need_update_dialog_pos, "unload_message");
-  CHECK(!need_update_dialog_pos);
-  return message;
-}
-
-unique_ptr<MessagesManager::Message> MessagesManager::delete_message(Dialog *d, MessageId message_id,
-                                                                     bool is_permanently_deleted,
-                                                                     bool *need_update_dialog_pos, const char *source) {
-  return do_delete_message(d, message_id, is_permanently_deleted, false, need_update_dialog_pos, source);
-}
-
-void MessagesManager::add_random_id_to_message_id_correspondence(Dialog *d, int64 random_id, MessageId message_id) {
-  CHECK(d != nullptr);
-  CHECK(d->dialog_id.get_type() == DialogType::SecretChat || message_id.is_yet_unsent());
-  auto it = d->random_id_to_message_id.find(random_id);
-  if (it == d->random_id_to_message_id.end() || it->second.get() < message_id.get()) {
-    if (random_id != 0) {
-      d->random_id_to_message_id[random_id] = message_id;
-    }
-  }
-}
-
-void MessagesManager::delete_random_id_to_message_id_correspondence(Dialog *d, int64 random_id, MessageId message_id) {
-  CHECK(d != nullptr);
-  CHECK(d->dialog_id.get_type() == DialogType::SecretChat || message_id.is_yet_unsent());
-  auto it = d->random_id_to_message_id.find(random_id);
-  if (it != d->random_id_to_message_id.end() && it->second == message_id) {
-    d->random_id_to_message_id.erase(it);
-  }
-}
-
-void MessagesManager::add_notification_id_to_message_id_correspondence(NotificationInfo *notification_info,
-                                                                       NotificationId notification_id,
-                                                                       MessageId message_id) {
-  CHECK(notification_info != nullptr);
-  CHECK(notification_id.is_valid());
-  CHECK(message_id.is_valid());
-  auto it = notification_info->notification_id_to_message_id_.find(notification_id);
-  if (it == notification_info->notification_id_to_message_id_.end()) {
-    VLOG(notifications) << "Add correspondence from " << notification_id << " to " << message_id;
-    notification_info->notification_id_to_message_id_.emplace(notification_id, message_id);
-  } else if (it->second != message_id) {
-    LOG(ERROR) << "Have the same " << notification_id << " for " << message_id << " and " << it->second;
-    if (it->second < message_id) {
-      it->second = message_id;
-    }
-  }
-}
-
-void MessagesManager::delete_notification_id_to_message_id_correspondence(NotificationInfo *notification_info,
-                                                                          NotificationId notification_id,
-                                                                          MessageId message_id) {
-  CHECK(notification_info != nullptr);
-  CHECK(notification_id.is_valid());
-  CHECK(message_id.is_valid());
-  auto it = notification_info->notification_id_to_message_id_.find(notification_id);
-  if (it != notification_info->notification_id_to_message_id_.end() && it->second == message_id) {
-    VLOG(notifications) << "Delete correspondence from " << notification_id << " to " << message_id;
-    notification_info->notification_id_to_message_id_.erase(it);
-  } else {
-    LOG(ERROR) << "Can't find " << notification_id << " from " << message_id;
-  }
-}
-
-bool MessagesManager::is_notification_info_group_id(const NotificationInfo *notification_info,
-                                                    NotificationGroupId group_id) {
-  if (!group_id.is_valid() || notification_info == nullptr) {
-    return false;
-  }
-  return notification_info->message_notification_group_.has_group_id(group_id) ||
-         notification_info->mention_notification_group_.has_group_id(group_id);
-}
-
-bool MessagesManager::is_dialog_notification_group_id(const Dialog *d, NotificationGroupId group_id) {
-  if (d == nullptr) {
-    return false;
-  }
-  return is_notification_info_group_id(d->notification_info.get(), group_id);
-}
-
-void MessagesManager::remove_message_notification_id(Dialog *d, Message *m, bool is_permanent, bool force_update,
-                                                     bool ignore_pinned_message_notification_removal) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  CHECK(m->message_id.is_valid());
-  if (!m->notification_id.is_valid()) {
-    return;
-  }
-
-  auto from_mentions = is_from_mention_notification_group(m);
-  auto &group_info = get_notification_group_info(d, m);
-  if (!group_info.is_valid()) {
-    return;
-  }
-
-  bool had_active_notification = is_message_notification_active(d, m);
-
-  auto notification_id = m->notification_id;
-  VLOG(notifications) << "Remove " << notification_id << " from " << m->message_id << " in "
-                      << group_info.get_group_id() << '/' << d->dialog_id
-                      << " from database, was_active = " << had_active_notification
-                      << ", is_permanent = " << is_permanent;
-  delete_notification_id_to_message_id_correspondence(d->notification_info.get(), notification_id, m->message_id);
-  m->removed_notification_id = m->notification_id;
-  m->notification_id = NotificationId();
-  if (d->notification_info->pinned_message_notification_message_id_ == m->message_id && is_permanent &&
-      !ignore_pinned_message_notification_removal) {
-    remove_dialog_pinned_message_notification(
-        d, "remove_message_notification_id");  // must be called after notification_id is removed
-  }
-  if (group_info.get_last_notification_id() == notification_id) {
-    // last notification is deleted, need to find new last notification
-    fix_dialog_last_notification_id(d, from_mentions, m->message_id);
-  }
-
-  if (is_permanent) {
-    if (had_active_notification) {
-      send_closure_later(G()->notification_manager(), &NotificationManager::remove_notification,
-                         group_info.get_group_id(), notification_id, is_permanent, force_update, Promise<Unit>(),
-                         "remove_message_notification_id");
-    }
-
-    // on_message_changed will be called by the caller
-    // don't need to call there to not save twice/or to save just deleted message
-  } else {
-    on_message_changed(d, m, false, "remove_message_notification_id");
-  }
-}
-
-void MessagesManager::remove_new_secret_chat_notification(Dialog *d, bool is_permanent) {
-  CHECK(d != nullptr);
-  CHECK(d->notification_info != nullptr);
-  auto notification_id = d->notification_info->new_secret_chat_notification_id_;
-  CHECK(notification_id.is_valid());
-  VLOG(notifications) << "Remove " << notification_id << " about new secret " << d->dialog_id << " from "
-                      << d->notification_info->message_notification_group_.get_group_id();
-  d->notification_info->new_secret_chat_notification_id_ = NotificationId();
-  set_dialog_last_notification_checked(d->dialog_id, d->notification_info->message_notification_group_, 0,
-                                       NotificationId(), "remove_new_secret_chat_notification");
-  if (is_permanent) {
-    CHECK(d->notification_info->message_notification_group_.is_valid());
-    send_closure_later(G()->notification_manager(), &NotificationManager::remove_notification,
-                       d->notification_info->message_notification_group_.get_group_id(), notification_id, true, true,
-                       Promise<Unit>(), "remove_new_secret_chat_notification");
-  }
-}
-
-void MessagesManager::fix_dialog_last_notification_id(Dialog *d, bool from_mentions, MessageId message_id) {
-  CHECK(d != nullptr);
-  CHECK(!message_id.is_scheduled());
-  if (d->notification_info == nullptr) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  auto &group_info = get_notification_group_info(d, from_mentions);
-  CHECK(group_info.is_valid());
-  auto it = d->ordered_messages.get_const_iterator(message_id);
-  VLOG(notifications) << "Trying to fix last notification identifier in " << group_info.get_group_id() << " from "
-                      << d->dialog_id << " from " << message_id << '/' << group_info.get_last_notification_id();
-  if (*it != nullptr && ((*it)->get_message_id() == message_id || (*it)->have_next())) {
-    while (*it != nullptr) {
-      const Message *m = get_message(d, (*it)->get_message_id());
-      if (is_from_mention_notification_group(m) == from_mentions && m->notification_id.is_valid() &&
-          is_message_notification_active(d, m) && m->message_id != message_id) {
-        set_dialog_last_notification(d->dialog_id, group_info, m->date, m->notification_id,
-                                     "fix_dialog_last_notification_id");
-        return;
-      }
-      --it;
-    }
-  }
-  if (G()->use_message_database()) {
-    get_message_notifications_from_database(
-        d->dialog_id, group_info.get_group_id(), group_info.get_last_notification_id(), message_id, 1,
-        PromiseCreator::lambda(
-            [actor_id = actor_id(this), dialog_id = d->dialog_id, from_mentions,
-             prev_last_notification_id = group_info.get_last_notification_id()](Result<vector<Notification>> result) {
-              send_closure(actor_id, &MessagesManager::do_fix_dialog_last_notification_id, dialog_id, from_mentions,
-                           prev_last_notification_id, std::move(result));
-            }));
-  }
-}
-
-void MessagesManager::do_fix_dialog_last_notification_id(DialogId dialog_id, bool from_mentions,
-                                                         NotificationId prev_last_notification_id,
-                                                         Result<vector<Notification>> result) {
-  if (result.is_error()) {
-    return;
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (d->notification_info == nullptr) {
-    return;
-  }
-  auto &group_info = get_notification_group_info(d, from_mentions);
-  if (!group_info.is_valid()) {
-    return;
-  }
-  VLOG(notifications) << "Receive " << result.ok().size() << " message notifications in " << group_info.get_group_id()
-                      << '/' << dialog_id << " from " << prev_last_notification_id;
-  if (group_info.get_last_notification_id() != prev_last_notification_id) {
-    // last_notification_id was changed
-    return;
-  }
-
-  auto notifications = result.move_as_ok();
-  CHECK(notifications.size() <= 1);
-
-  int32 last_notification_date = 0;
-  NotificationId last_notification_id;
-  if (!notifications.empty()) {
-    last_notification_date = notifications[0].date;
-    last_notification_id = notifications[0].notification_id;
-  }
-
-  set_dialog_last_notification(dialog_id, group_info, last_notification_date, last_notification_id,
-                               "do_fix_dialog_last_notification_id");
-}
-
-// DO NOT FORGET TO ADD ALL CHANGES OF THIS FUNCTION AS WELL TO delete_all_dialog_messages
-unique_ptr<MessagesManager::Message> MessagesManager::do_delete_message(Dialog *d, MessageId message_id,
-                                                                        bool is_permanently_deleted,
-                                                                        bool only_from_memory,
-                                                                        bool *need_update_dialog_pos,
-                                                                        const char *source) {
-  CHECK(d != nullptr);
-  if (!message_id.is_valid()) {
-    if (message_id.is_valid_scheduled()) {
-      return do_delete_scheduled_message(d, message_id, is_permanently_deleted, source);
-    }
-
-    LOG(ERROR) << "Trying to delete " << message_id << " in " << d->dialog_id << " from " << source;
-    return nullptr;
-  }
-
-  MessageFullId message_full_id(d->dialog_id, message_id);
-  const Message *m = get_message(d, message_id);
-  if (m == nullptr) {
-    if (only_from_memory) {
-      return nullptr;
-    }
-
-    LOG(INFO) << message_id << " is not found in " << d->dialog_id << " to be deleted from " << source;
-    m = get_message_force(d, message_id, "do_delete_message");
-    if (m == nullptr) {
-      // currently there may be a race between add_message_to_database and get_message_force,
-      // so delete a message from database just in case
-      delete_message_from_database(d, message_id, nullptr, is_permanently_deleted, source);
-
-      if (is_permanently_deleted && d->last_clear_history_message_id == message_id) {
-        set_dialog_last_clear_history_date(d, 0, MessageId(), "do_delete_message");
-        *need_update_dialog_pos = true;
-      }
-
-      /*
-      can't do this because the message may be never received in the dialog, unread count will became negative
-      // if last_read_inbox_message_id is not known, we can't be sure whether unread_count should be decreased or not
-      if (message_id.is_valid() && !message_id.is_yet_unsent() && d->is_last_read_inbox_message_id_inited &&
-          message_id > d->last_read_inbox_message_id && !td_->auth_manager_->is_bot()) {
-        int32 server_unread_count = d->server_unread_count;
-        int32 local_unread_count = d->local_unread_count;
-        int32 &unread_count = message_id.is_server() ? server_unread_count : local_unread_count;
-        if (unread_count == 0) {
-          LOG(ERROR) << "Unread count became negative in " << d->dialog_id << " after deletion of " << message_id
-                     << ". Last read is " << d->last_read_inbox_message_id;
-        } else {
-          unread_count--;
-          set_dialog_last_read_inbox_message_id(d, MessageId::min(), server_unread_count, local_unread_count, false,
-                                                source);
-        }
-      }
-      */
-      return nullptr;
-    }
-  }
-
-  if (only_from_memory && !can_unload_message(d, m)) {
-    return nullptr;
-  }
-
-  LOG_CHECK(!d->being_deleted_message_id.is_valid())
-      << d->being_deleted_message_id << " " << message_id << " " << source;
-  d->being_deleted_message_id = message_id;
-
-  bool need_get_history = false;
-  if (!only_from_memory) {
-    LOG(INFO) << "Deleting " << message_full_id << " from " << source;
-
-    delete_message_from_database(d, message_id, m, is_permanently_deleted, source);
-
-    if (delete_active_live_location({d->dialog_id, m->message_id})) {
-      send_update_active_live_location_messages();
-      save_active_live_locations();
-    }
-    remove_message_file_sources(d->dialog_id, m, "do_delete_message");
-
-    if (message_id == d->last_message_id) {
-      auto it = d->ordered_messages.get_const_iterator(message_id);
-      CHECK(*it != nullptr);
-      CHECK((*it)->get_message_id() == message_id);
-      --it;
-      if (*it != nullptr) {
-        set_dialog_last_message_id(d, (*it)->get_message_id(), "do_delete_message");
-      } else {
-        need_get_history = true;
-        set_dialog_last_message_id(d, MessageId(), "do_delete_message");
-        d->delete_last_message_date = m->date;
-        d->deleted_last_message_id = message_id;
-        d->is_last_message_deleted_locally = Slice(source) == Slice(DELETE_MESSAGE_USER_REQUEST_SOURCE);
-        on_dialog_updated(d->dialog_id, "do delete last message");
-      }
-      *need_update_dialog_pos = true;
-    }
-
-    if (message_id == d->last_database_message_id) {
-      auto it = d->ordered_messages.get_const_iterator(message_id);
-      CHECK(*it != nullptr);
-      CHECK((*it)->get_message_id() == message_id);
-      do {
-        --it;
-      } while (*it != nullptr && (*it)->get_message_id().is_yet_unsent());
-
-      if (*it != nullptr) {
-        if ((*it)->get_message_id() < d->first_database_message_id && d->dialog_id.get_type() == DialogType::Channel) {
-          // possible if messages were deleted from database, but not from memory after updateChannelTooLong
-          set_dialog_last_database_message_id(d, MessageId(), "do_delete_message 1");
-        } else {
-          set_dialog_last_database_message_id(d, (*it)->get_message_id(), "do_delete_message 2");
-          if (d->last_database_message_id < d->first_database_message_id) {
-            LOG(ERROR) << "Last database " << d->last_database_message_id << " became less than first database "
-                       << d->first_database_message_id << " after deletion of " << message_full_id;
-            set_dialog_first_database_message_id(d, d->last_database_message_id, "do_delete_message 2");
-          }
-        }
-      } else {
-        if (d->first_database_message_id == d->last_database_message_id) {
-          // database definitely has no more messages
-          set_dialog_last_database_message_id(d, MessageId(), "do_delete_message 3");
-        } else {
-          LOG(INFO) << "Need to get history to repair last_database_message_id in " << d->dialog_id;
-          need_get_history = true;
-        }
-      }
-    }
-    if (d->last_database_message_id.is_valid()) {
-      CHECK(d->first_database_message_id.is_valid());
-    } else if (d->first_database_message_id.is_valid()) {
-      set_dialog_first_database_message_id(d, MessageId(), "do_delete_message");
-    }
-
-    auto suffix_load_queries_it = dialog_suffix_load_queries_.find(d->dialog_id);
-    if (suffix_load_queries_it != dialog_suffix_load_queries_.end() &&
-        message_id == suffix_load_queries_it->second->suffix_load_first_message_id_) {
-      auto it = d->ordered_messages.get_const_iterator(message_id);
-      CHECK(*it != nullptr);
-      CHECK((*it)->get_message_id() == message_id);
-      --it;
-      if (*it != nullptr) {
-        suffix_load_queries_it->second->suffix_load_first_message_id_ = (*it)->get_message_id();
-      } else {
-        suffix_load_queries_it->second->suffix_load_first_message_id_ = MessageId();
-        suffix_load_queries_it->second->suffix_load_done_ = false;
-      }
-    }
-  } else {
-    auto suffix_load_queries_it = dialog_suffix_load_queries_.find(d->dialog_id);
-    if (suffix_load_queries_it != dialog_suffix_load_queries_.end() &&
-        message_id >= suffix_load_queries_it->second->suffix_load_first_message_id_) {
-      suffix_load_queries_it->second->suffix_load_first_message_id_ = MessageId();
-      suffix_load_queries_it->second->suffix_load_done_ = false;
-    }
-  }
-
-  auto result = std::move(d->messages[message_id]);
-  CHECK(m == result.get());
-  d->messages.erase(message_id);
-
-  static_cast<ListNode *>(result.get())->remove();
-
-  if (!td_->auth_manager_->is_bot()) {
-    d->ordered_messages.erase(message_id, only_from_memory);
-  }
-
-  d->being_deleted_message_id = MessageId();
-
-  if (need_get_history) {
-    send_closure_later(actor_id(this), &MessagesManager::load_last_dialog_message_later, d->dialog_id);
-  }
-
-  on_message_deleted(d, result.get(), is_permanently_deleted, source);
-
-  return result;
-}
-
-void MessagesManager::on_message_deleted_from_database(Dialog *d, const Message *m, const char *source) {
-  CHECK(d != nullptr);
-  if (m == nullptr || m->message_id.is_scheduled() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto message_id = m->message_id;
-  if (d->reply_markup_message_id == message_id) {
-    set_dialog_reply_markup(d, MessageId());
-  }
-  // if last_read_inbox_message_id is not known, we can't be sure whether unread_count should be decreased or not
-  if (has_incoming_notification(d->dialog_id, m) && message_id > d->last_read_inbox_message_id &&
-      d->is_last_read_inbox_message_id_inited) {
-    int32 server_unread_count = d->server_unread_count;
-    int32 local_unread_count = d->local_unread_count;
-    int32 &unread_count = message_id.is_server() ? server_unread_count : local_unread_count;
-    if (unread_count == 0) {
-      if (need_unread_counter(d->order)) {
-        LOG(ERROR) << "Unread count became negative in " << d->dialog_id << " after deletion of " << message_id
-                   << ". Last read is " << d->last_read_inbox_message_id;
-      }
-    } else {
-      unread_count--;
-      set_dialog_last_read_inbox_message_id(d, MessageId::min(), server_unread_count, local_unread_count, false,
-                                            source);
-    }
-  }
-  if (m->contains_unread_mention) {
-    if (d->unread_mention_count == 0) {
-      if (is_dialog_inited(d)) {
-        LOG(ERROR) << "Unread mention count became negative in " << d->dialog_id << " after deletion of " << message_id;
-      }
-    } else {
-      set_dialog_unread_mention_count(d, d->unread_mention_count - 1);
-      send_update_chat_unread_mention_count(d);
-    }
-  }
-  if (has_unread_message_reactions(d->dialog_id, m)) {
-    if (d->unread_reaction_count == 0) {
-      if (is_dialog_inited(d)) {
-        LOG(ERROR) << "Unread reaction count became negative in " << d->dialog_id << " after deletion of "
-                   << message_id;
-      }
-    } else {
-      set_dialog_unread_reaction_count(d, d->unread_reaction_count - 1);
-      send_update_chat_unread_reaction_count(d, source);
-    }
-  }
-
-  update_message_count_by_index(d, -1, m);
-  update_reply_count_by_message(d, -1, m);
-
-  td_->reaction_manager_->update_saved_messages_tags(m->saved_messages_topic_id, get_chosen_tags(m->reactions), {});
-}
-
-void MessagesManager::on_message_deleted(Dialog *d, Message *m, bool is_permanently_deleted, const char *source) {
-  // also called for unloaded messages, but not for scheduled messages
-  CHECK(m->message_id.is_valid());
-
-  if (m->message_id.is_yet_unsent() && !m->message_id.is_scheduled() && m->top_thread_message_id.is_valid() &&
-      !td_->auth_manager_->is_bot()) {
-    auto it = yet_unsent_thread_message_ids_.find({d->dialog_id, m->top_thread_message_id});
-    CHECK(it != yet_unsent_thread_message_ids_.end());
-    auto is_deleted = it->second.erase(m->message_id) > 0;
-    CHECK(is_deleted);
-    if (it->second.empty()) {
-      yet_unsent_thread_message_ids_.erase(it);
-    }
-  }
-  if (d->open_count > 0) {
-    auto it = dialog_viewed_messages_.find(d->dialog_id);
-    if (it != dialog_viewed_messages_.end()) {
-      auto &info = it->second;
-      CHECK(info != nullptr);
-      auto message_it = info->message_id_to_view_id.find(m->message_id);
-      if (message_it != info->message_id_to_view_id.end()) {
-        info->recently_viewed_messages.erase(message_it->second);
-        info->message_id_to_view_id.erase(message_it);
-      }
-    }
-  }
-
-  cancel_send_deleted_message(d->dialog_id, m, is_permanently_deleted);
-
-  auto dialog_type = d->dialog_id.get_type();
-  switch (dialog_type) {
-    case DialogType::User:
-    case DialogType::Chat:
-      if (m->message_id.is_server()) {
-        message_id_to_dialog_id_.erase(m->message_id);
-      }
-      break;
-    case DialogType::Channel:
-      if (m->message_id.is_server() && !td_->auth_manager_->is_bot()) {
-        td_->user_manager_->unregister_message_users({d->dialog_id, m->message_id}, get_message_user_ids(m));
-        td_->chat_manager_->unregister_message_channels({d->dialog_id, m->message_id}, get_message_channel_ids(m));
-      }
-      break;
-    case DialogType::SecretChat:
-      // nothing to do
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  ttl_unregister_message(d->dialog_id, m, source);
-  ttl_period_unregister_message(d->dialog_id, m);
-  delete_bot_command_message_id(d->dialog_id, m->message_id);
-  unregister_message_content(td_, m->content.get(), {d->dialog_id, m->message_id}, "on_message_deleted");
-  unregister_message_reply(d->dialog_id, m);
-  if (m->notification_id.is_valid()) {
-    delete_notification_id_to_message_id_correspondence(d->notification_info.get(), m->notification_id, m->message_id);
-  }
-  if (m->message_id.is_yet_unsent() || dialog_type == DialogType::SecretChat) {
-    delete_random_id_to_message_id_correspondence(d, m->random_id, m->message_id);
-  }
-  if (m->is_topic_message) {
-    td_->forum_topic_manager_->on_topic_message_count_changed(d->dialog_id, m->top_thread_message_id, -1);
-  }
-  if (is_permanently_deleted && !td_->auth_manager_->is_bot() && m->saved_messages_topic_id.is_valid()) {
-    CHECK(d->dialog_id == td_->dialog_manager_->get_my_dialog_id());
-    td_->saved_messages_manager_->on_topic_message_deleted(m->saved_messages_topic_id, m->message_id);
-  }
-
-  added_message_count_--;
-}
-
-bool MessagesManager::is_deleted_message(const Dialog *d, MessageId message_id) {
-  if (message_id.is_scheduled() && message_id.is_valid_scheduled() && message_id.is_scheduled_server()) {
-    return d->scheduled_messages != nullptr && d->scheduled_messages->deleted_scheduled_server_message_ids_.count(
-                                                   message_id.get_scheduled_server_message_id()) > 0;
-  } else {
-    return d->deleted_message_ids.count(message_id) > 0;
-  }
-}
-
-unique_ptr<MessagesManager::Message> MessagesManager::do_delete_scheduled_message(Dialog *d, MessageId message_id,
-                                                                                  bool is_permanently_deleted,
-                                                                                  const char *source) {
-  CHECK(d != nullptr);
-  LOG_CHECK(message_id.is_valid_scheduled()) << d->dialog_id << ' ' << message_id << ' ' << source;
-
-  if (d->scheduled_messages == nullptr) {
-    auto message = get_message_force(d, message_id, "do_delete_scheduled_message");
-    if (message == nullptr) {
-      // currently there may be a race between add_message_to_database and get_message_force,
-      // so delete a message from database just in case
-      delete_message_from_database(d, message_id, nullptr, is_permanently_deleted, source);
-      return nullptr;
-    }
-    CHECK(d->scheduled_messages != nullptr);
-  }
-  auto it = d->scheduled_messages->scheduled_messages_.find(message_id);
-  if (it == d->scheduled_messages->scheduled_messages_.end()) {
-    LOG(INFO) << message_id << " is not found in " << d->dialog_id << " to be deleted from " << source;
-    auto message = get_message_force(d, message_id, "do_delete_scheduled_message");
-    if (message == nullptr) {
-      // currently there may be a race between add_message_to_database and get_message_force,
-      // so delete a message from database just in case
-      delete_message_from_database(d, message_id, nullptr, is_permanently_deleted, source);
-      return nullptr;
-    }
-
-    message_id = message->message_id;
-    it = d->scheduled_messages->scheduled_messages_.find(message_id);
-    CHECK(it != d->scheduled_messages->scheduled_messages_.end());
-  }
-
-  const Message *m = it->second.get();
-  CHECK(m->message_id == message_id);
-
-  LOG(INFO) << "Deleting " << MessageFullId{d->dialog_id, message_id} << " from " << source;
-
-  delete_message_from_database(d, message_id, m, is_permanently_deleted, source);
-
-  remove_message_file_sources(d->dialog_id, m, "do_delete_scheduled_message");
-
-  it = d->scheduled_messages->scheduled_messages_.find(message_id);
-  auto result = std::move(it->second);
-  d->scheduled_messages->scheduled_messages_.erase(it);
-  CHECK(m == result.get());
-
-  if (message_id.is_scheduled_server()) {
-    size_t erased_count =
-        d->scheduled_messages->scheduled_message_date_.erase(message_id.get_scheduled_server_message_id());
-    CHECK(erased_count != 0);
-  }
-
-  cancel_send_deleted_message(d->dialog_id, result.get(), is_permanently_deleted);
-
-  unregister_message_content(td_, m->content.get(), {d->dialog_id, message_id}, "do_delete_scheduled_message");
-  unregister_message_reply(d->dialog_id, m);
-  if (message_id.is_yet_unsent()) {
-    delete_random_id_to_message_id_correspondence(d, m->random_id, m->message_id);
-  }
-  if (m->is_topic_message) {
-    td_->forum_topic_manager_->on_topic_message_count_changed(d->dialog_id, m->top_thread_message_id, -1);
-  }
-
-  return result;
-}
-
-bool MessagesManager::have_dialog(DialogId dialog_id) const {
-  return dialogs_.count(dialog_id) > 0;
-}
-
-void MessagesManager::load_dialogs(vector<DialogId> dialog_ids, Promise<vector<DialogId>> &&promise) {
-  LOG(INFO) << "Load chats " << dialog_ids;
-
-  Dependencies dependencies;
-  for (auto dialog_id : dialog_ids) {
-    if (!have_dialog(dialog_id)) {
-      dependencies.add_dialog_dependencies(dialog_id);
-    }
-  }
-  dependencies.resolve_force(td_, "load_dialogs", true);
-
-  td::remove_if(dialog_ids, [this](DialogId dialog_id) { return !td_->dialog_manager_->have_dialog_info(dialog_id); });
-
-  for (auto dialog_id : dialog_ids) {
-    force_create_dialog(dialog_id, "load_dialogs");
-  }
-
-  LOG(INFO) << "Loaded chats " << dialog_ids;
-  promise.set_value(std::move(dialog_ids));
-}
-
-bool MessagesManager::load_dialog(DialogId dialog_id, int left_tries, Promise<Unit> &&promise) {
-  if (!dialog_id.is_valid()) {
-    promise.set_error(Status::Error(400, "Invalid chat identifier specified"));
-    return false;
-  }
-
-  bool need_load = !have_dialog_force(dialog_id, "load_dialog");
-  if (!need_load && td_->auth_manager_->is_bot() && dialog_id.get_type() == DialogType::User &&
-      !td_->user_manager_->have_user(dialog_id.get_user_id())) {
-    need_load = true;
-  }
-  if (need_load) {
-    if (G()->use_message_database()) {
-      //      TODO load dialog from database, DialogLoader
-      //      send_closure_later(actor_id(this), &MessagesManager::load_dialog_from_database, dialog_id,
-      //      std::move(promise));
-      //      return false;
-    }
-    if (td_->auth_manager_->is_bot()) {
-      switch (dialog_id.get_type()) {
-        case DialogType::User: {
-          auto user_id = dialog_id.get_user_id();
-          auto have_user = td_->user_manager_->get_user(user_id, left_tries, std::move(promise));
-          if (!have_user) {
-            return false;
-          }
-          break;
-        }
-        case DialogType::Chat: {
-          auto have_chat = td_->chat_manager_->get_chat(dialog_id.get_chat_id(), left_tries, std::move(promise));
-          if (!have_chat) {
-            return false;
-          }
-          break;
-        }
-        case DialogType::Channel: {
-          auto have_channel =
-              td_->chat_manager_->get_channel(dialog_id.get_channel_id(), left_tries, std::move(promise));
-          if (!have_channel) {
-            return false;
-          }
-          break;
-        }
-        case DialogType::SecretChat:
-          promise.set_error(Status::Error(400, "Chat not found"));
-          return false;
-        case DialogType::None:
-        default:
-          UNREACHABLE();
-      }
-      if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-        return false;
-      }
-
-      add_dialog(dialog_id, "load_dialog");
-      return true;
-    }
-
-    promise.set_error(Status::Error(400, "Chat not found"));
-    return false;
-  }
-
-  promise.set_value(Unit());
-  return true;
-}
-
-Result<DialogDate> MessagesManager::get_dialog_list_last_date(DialogListId dialog_list_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  auto *list_ptr = get_dialog_list(dialog_list_id);
-  if (list_ptr == nullptr) {
-    return Status::Error(400, "Chat list not found");
-  }
-  return list_ptr->list_last_dialog_date_;
-}
-
-vector<DialogId> MessagesManager::get_dialogs(DialogListId dialog_list_id, DialogDate offset, int32 limit,
-                                              bool exact_limit, bool force, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  auto *list_ptr = get_dialog_list(dialog_list_id);
-  if (list_ptr == nullptr) {
-    promise.set_error(Status::Error(400, "Chat list not found"));
-    return {};
-  }
-  auto &list = *list_ptr;
-
-  LOG(INFO) << "Get chats in " << dialog_list_id << " with offset " << offset << " and limit " << limit
-            << ". last_dialog_date = " << list.list_last_dialog_date_
-            << ", last_pinned_dialog_date_ = " << list.last_pinned_dialog_date_
-            << ", are_pinned_dialogs_inited_ = " << list.are_pinned_dialogs_inited_;
-
-  if (limit <= 0) {
-    promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-    return {};
-  }
-
-  vector<DialogId> result;
-  if (dialog_list_id == DialogListId(FolderId::main()) && sponsored_dialog_id_.is_valid()) {
-    auto d = get_dialog(sponsored_dialog_id_);
-    CHECK(d != nullptr);
-    if (is_dialog_sponsored(d)) {
-      DialogDate date(get_dialog_private_order(&list, d), d->dialog_id);
-      if (offset < date) {
-        result.push_back(sponsored_dialog_id_);
-        offset = date;
-        limit--;
-      }
-    }
-  }
-
-  if (!list.are_pinned_dialogs_inited_) {
-    if (limit == 0 || force) {
-      promise.set_value(Unit());
-      return result;
-    } else {
-      if (dialog_list_id.is_folder()) {
-        auto &folder = *get_dialog_folder(dialog_list_id.get_folder_id());
-        if (folder.last_loaded_database_dialog_date_ == folder.last_database_server_dialog_date_ &&
-            folder.folder_last_dialog_date_ != MAX_DIALOG_DATE) {
-          load_dialog_list(list, limit, std::move(promise));
-          return {};
-        }
-      }
-      reload_pinned_dialogs(dialog_list_id, std::move(promise));
-      return {};
-    }
-  }
-  if (dialog_list_id.is_filter()) {
-    auto dialog_filter_id = dialog_list_id.get_filter_id();
-    vector<InputDialogId> input_dialog_ids;
-    for (const auto &input_dialog_id : td_->dialog_filter_manager_->get_pinned_input_dialog_ids(dialog_filter_id)) {
-      auto dialog_id = input_dialog_id.get_dialog_id();
-      if (!have_dialog_force(dialog_id, "get_dialogs")) {
-        if (dialog_id.get_type() == DialogType::SecretChat) {
-          if (td_->dialog_manager_->have_dialog_info_force(dialog_id, "get_dialogs")) {
-            force_create_dialog(dialog_id, "get_dialogs");
-          }
-        } else {
-          input_dialog_ids.push_back(input_dialog_id);
-        }
-      }
-    }
-
-    if (!input_dialog_ids.empty()) {
-      if (limit == 0 || force) {
-        promise.set_value(Unit());
-        return result;
-      } else {
-        td_->dialog_filter_manager_->load_dialog_filter_dialogs(dialog_filter_id, std::move(input_dialog_ids),
-                                                                std::move(promise));
-        return {};
-      }
-    }
-  }
-
-  if (!list.pinned_dialogs_.empty() && offset < list.pinned_dialogs_.back() && limit > 0) {
-    bool need_reload_pinned_dialogs = false;
-    bool need_remove_unknown_secret_chats = false;
-    for (auto &pinned_dialog : list.pinned_dialogs_) {
-      if (offset < pinned_dialog) {
-        auto dialog_id = pinned_dialog.get_dialog_id();
-        auto d = get_dialog_force(dialog_id, "get_dialogs");
-        if (d == nullptr) {
-          LOG(ERROR) << "Failed to load pinned " << dialog_id << " from " << dialog_list_id;
-          if (dialog_id.get_type() != DialogType::SecretChat) {
-            need_reload_pinned_dialogs = true;
-          } else {
-            need_remove_unknown_secret_chats = true;
-          }
-          continue;
-        }
-        if (d->order == DEFAULT_ORDER) {
-          LOG(INFO) << "Loaded pinned " << dialog_id << " with default order in " << dialog_list_id;
-          continue;
-        }
-        result.push_back(dialog_id);
-        offset = pinned_dialog;
-        limit--;
-        if (limit == 0) {
-          break;
-        }
-      }
-    }
-    if (need_reload_pinned_dialogs) {
-      reload_pinned_dialogs(dialog_list_id, Auto());
-    }
-    if (need_remove_unknown_secret_chats) {
-      td::remove_if(list.pinned_dialogs_, [this, &list](const DialogDate &dialog_date) {
-        auto dialog_id = dialog_date.get_dialog_id();
-        if (dialog_id.get_type() == DialogType::SecretChat && !have_dialog_force(dialog_id, "get_dialogs 2")) {
-          list.pinned_dialog_id_orders_.erase(dialog_id);
-          return true;
-        }
-        return false;
-      });
-      save_pinned_folder_dialog_ids(list);
-    }
-  }
-  update_list_last_pinned_dialog_date(list);
-
-  vector<const DialogFolder *> folders;
-  vector<std::set<DialogDate>::const_iterator> folder_iterators;
-  for (auto folder_id : get_dialog_list_folder_ids(list)) {
-    folders.push_back(get_dialog_folder(folder_id));
-    folder_iterators.push_back(folders.back()->ordered_dialogs_.upper_bound(offset));
-  }
-  while (limit > 0) {
-    size_t best_pos = 0;
-    DialogDate best_dialog_date = MAX_DIALOG_DATE;
-    for (size_t i = 0; i < folders.size(); i++) {
-      while (folder_iterators[i] != folders[i]->ordered_dialogs_.end() &&
-             *folder_iterators[i] <= list.list_last_dialog_date_ &&
-             (!is_dialog_in_list(get_dialog(folder_iterators[i]->get_dialog_id()), dialog_list_id) ||
-              get_dialog_pinned_order(&list, folder_iterators[i]->get_dialog_id()) != DEFAULT_ORDER)) {
-        ++folder_iterators[i];
-      }
-      if (folder_iterators[i] != folders[i]->ordered_dialogs_.end() &&
-          *folder_iterators[i] <= list.list_last_dialog_date_ && *folder_iterators[i] < best_dialog_date) {
-        best_pos = i;
-        best_dialog_date = *folder_iterators[i];
-      }
-    }
-    if (best_dialog_date == MAX_DIALOG_DATE || best_dialog_date.get_order() == DEFAULT_ORDER) {
-      break;
-    }
-
-    limit--;
-    result.push_back(folder_iterators[best_pos]->get_dialog_id());
-    ++folder_iterators[best_pos];
-  }
-
-  if ((!result.empty() && (!exact_limit || limit == 0)) || force || list.list_last_dialog_date_ == MAX_DIALOG_DATE) {
-    if (limit > 0 && list.list_last_dialog_date_ != MAX_DIALOG_DATE) {
-      LOG(INFO) << "Preload next " << limit << " chats in " << dialog_list_id;
-      load_dialog_list(list, limit, Promise<Unit>());
-    }
-
-    promise.set_value(Unit());
-    return result;
-  } else {
-    if (!result.empty()) {
-      LOG(INFO) << "Have only " << result.size() << " chats, but " << limit << " chats more are needed";
-    }
-    load_dialog_list(list, limit, std::move(promise));
-    return {};
-  }
-}
-
-void MessagesManager::load_dialog_list(DialogList &list, int32 limit, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (limit > MAX_GET_DIALOGS + 2) {
-    limit = MAX_GET_DIALOGS + 2;
-  }
-  bool is_request_sent = false;
-  for (auto folder_id : get_dialog_list_folder_ids(list)) {
-    const auto &folder = *get_dialog_folder(folder_id);
-    if (folder.folder_last_dialog_date_ != MAX_DIALOG_DATE) {
-      load_folder_dialog_list(folder_id, limit, false);
-      is_request_sent = true;
-    }
-  }
-  if (is_request_sent) {
-    LOG(INFO) << "Wait for loading of " << limit << " chats in " << list.dialog_list_id;
-    list.load_list_queries_.push_back(std::move(promise));
-  } else {
-    LOG(ERROR) << "There is nothing to load for " << list.dialog_list_id << " with folders "
-               << get_dialog_list_folder_ids(list);
-    promise.set_error(Status::Error(404, "Not Found"));
-  }
-}
-
-void MessagesManager::load_folder_dialog_list(FolderId folder_id, int32 limit, bool only_local) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(!td_->auth_manager_->is_bot());
-  auto &folder = *get_dialog_folder(folder_id);
-  if (folder.folder_last_dialog_date_ == MAX_DIALOG_DATE) {
-    return;
-  }
-
-  bool use_database = G()->use_message_database() &&
-                      folder.last_loaded_database_dialog_date_ < folder.last_database_server_dialog_date_;
-  if (only_local && !use_database) {
-    return;
-  }
-
-  auto &multipromise = folder.load_folder_dialog_list_multipromise_;
-  if (multipromise.promise_count() != 0) {
-    // queries have already been sent, just wait for the result
-    LOG(INFO) << "Skip loading of dialog list in " << folder_id << " with limit " << limit
-              << ", because it is already being loaded";
-    if (use_database && folder.load_dialog_list_limit_max_ != 0) {
-      folder.load_dialog_list_limit_max_ = max(folder.load_dialog_list_limit_max_, limit);
-    }
-    return;
-  }
-  LOG(INFO) << "Load chat list in " << folder_id << " with limit " << limit;
-  multipromise.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), folder_id](Result<Unit> result) {
-    send_closure_later(actor_id, &MessagesManager::on_load_folder_dialog_list, folder_id, std::move(result));
-  }));
-
-  bool is_query_sent = false;
-  if (use_database) {
-    load_folder_dialog_list_from_database(folder_id, limit, multipromise.get_promise());
-    is_query_sent = true;
-  } else {
-    LOG(INFO) << "Get chats from " << folder.last_server_dialog_date_;
-    multipromise.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), folder_id](Result<Unit> result) {
-      if (result.is_ok()) {
-        send_closure(actor_id, &MessagesManager::recalc_unread_count, DialogListId(folder_id), -1, true);
-      }
-    }));
-    auto lock = multipromise.get_promise();
-    reload_pinned_dialogs(DialogListId(folder_id), multipromise.get_promise());
-    if (folder.folder_last_dialog_date_ == folder.last_server_dialog_date_) {
-      td_->create_handler<GetDialogListQuery>(multipromise.get_promise())
-          ->send(folder_id, folder.last_server_dialog_date_.get_date(),
-                 folder.last_server_dialog_date_.get_message_id().get_next_server_message_id().get_server_message_id(),
-                 folder.last_server_dialog_date_.get_dialog_id(), int32{MAX_GET_DIALOGS});
-      is_query_sent = true;
-    }
-    if (folder_id == FolderId::main() && folder.last_server_dialog_date_ == MIN_DIALOG_DATE) {
-      // do not pass promise to not wait for drafts before showing the chat list
-      load_all_draft_messages(td_);
-    }
-    lock.set_value(Unit());
-  }
-  CHECK(is_query_sent);
-}
-
-void MessagesManager::on_load_folder_dialog_list(FolderId folder_id, Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-
-  const auto &folder = *get_dialog_folder(folder_id);
-  if (result.is_ok()) {
-    LOG(INFO) << "Successfully loaded chats in " << folder_id;
-    if (folder.last_server_dialog_date_ == MAX_DIALOG_DATE) {
-      return;
-    }
-
-    bool need_new_get_dialog_list = false;
-    for (const auto &list_it : dialog_lists_) {
-      auto &list = list_it.second;
-      if (!list.load_list_queries_.empty() && has_dialogs_from_folder(list, folder)) {
-        LOG(INFO) << "Need to load more chats in " << folder_id << " for " << list_it.first;
-        need_new_get_dialog_list = true;
-      }
-    }
-    if (need_new_get_dialog_list) {
-      load_folder_dialog_list(folder_id, int32{MAX_GET_DIALOGS}, false);
-    }
-    return;
-  }
-
-  LOG(WARNING) << "Failed to load chats in " << folder_id << ": " << result.error();
-  vector<Promise<Unit>> promises;
-  for (auto &list_it : dialog_lists_) {
-    auto &list = list_it.second;
-    if (!list.load_list_queries_.empty() && has_dialogs_from_folder(list, folder)) {
-      append(promises, std::move(list.load_list_queries_));
-      list.load_list_queries_.clear();
-    }
-  }
-
-  fail_promises(promises, result.move_as_error());
-}
-
-void MessagesManager::load_folder_dialog_list_from_database(FolderId folder_id, int32 limit, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto &folder = *get_dialog_folder(folder_id);
-  LOG(INFO) << "Load " << limit << " chats in " << folder_id << " from database from "
-            << folder.last_loaded_database_dialog_date_
-            << ", last database server dialog date = " << folder.last_database_server_dialog_date_;
-
-  CHECK(folder.load_dialog_list_limit_max_ == 0);
-  folder.load_dialog_list_limit_max_ = limit;
-  G()->td_db()->get_dialog_db_async()->get_dialogs(
-      folder_id, folder.last_loaded_database_dialog_date_.get_order(),
-      folder.last_loaded_database_dialog_date_.get_dialog_id(), limit,
-      PromiseCreator::lambda([actor_id = actor_id(this), folder_id, limit,
-                              promise = std::move(promise)](DialogDbGetDialogsResult result) mutable {
-        send_closure(actor_id, &MessagesManager::on_get_dialogs_from_database, folder_id, limit, std::move(result),
-                     std::move(promise));
-      }));
-}
-
-void MessagesManager::on_get_dialogs_from_database(FolderId folder_id, int32 limit, DialogDbGetDialogsResult &&dialogs,
-                                                   Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(!td_->auth_manager_->is_bot());
-  auto &folder = *get_dialog_folder(folder_id);
-  LOG(INFO) << "Receive " << dialogs.dialogs.size() << " from expected " << limit << " chats in " << folder_id
-            << " in from database with next order " << dialogs.next_order << " and next " << dialogs.next_dialog_id;
-  int32 new_get_dialogs_limit = 0;
-  int32 have_more_dialogs_in_database = (limit == static_cast<int32>(dialogs.dialogs.size()));
-  if (have_more_dialogs_in_database && limit < folder.load_dialog_list_limit_max_) {
-    new_get_dialogs_limit = folder.load_dialog_list_limit_max_ - limit;
-  }
-  folder.load_dialog_list_limit_max_ = 0;
-
-  size_t dialogs_skipped = 0;
-  for (auto &dialog : dialogs.dialogs) {
-    Dialog *d = on_load_dialog_from_database(DialogId(), std::move(dialog), "on_get_dialogs_from_database");
-    if (d == nullptr) {
-      dialogs_skipped++;
-      continue;
-    }
-    if (d->folder_id != folder_id) {
-      LOG(INFO) << "Skip " << d->dialog_id << " received from database, because it is in " << d->folder_id
-                << " instead of " << folder_id;
-      dialogs_skipped++;
-      continue;
-    }
-
-    LOG(INFO) << "Loaded from database " << d->dialog_id << " with order " << d->order;
-  }
-
-  DialogDate max_dialog_date(dialogs.next_order, dialogs.next_dialog_id);
-  if (!have_more_dialogs_in_database) {
-    folder.last_loaded_database_dialog_date_ = MAX_DIALOG_DATE;
-    LOG(INFO) << "Set last loaded database dialog date to " << folder.last_loaded_database_dialog_date_;
-    folder.last_server_dialog_date_ = max(folder.last_server_dialog_date_, folder.last_database_server_dialog_date_);
-    LOG(INFO) << "Set last server dialog date to " << folder.last_server_dialog_date_;
-    update_last_dialog_date(folder_id);
-  } else if (folder.last_loaded_database_dialog_date_ < max_dialog_date) {
-    folder.last_loaded_database_dialog_date_ = min(max_dialog_date, folder.last_database_server_dialog_date_);
-    LOG(INFO) << "Set last loaded database dialog date to " << folder.last_loaded_database_dialog_date_;
-    folder.last_server_dialog_date_ = max(folder.last_server_dialog_date_, folder.last_loaded_database_dialog_date_);
-    LOG(INFO) << "Set last server dialog date to " << folder.last_server_dialog_date_;
-    update_last_dialog_date(folder_id);
-
-    for (const auto &list_it : dialog_lists_) {
-      auto &list = list_it.second;
-      if (!list.load_list_queries_.empty() && has_dialogs_from_folder(list, folder) && new_get_dialogs_limit < limit) {
-        new_get_dialogs_limit = limit;
-      }
-    }
-  } else {
-    LOG(ERROR) << "Last loaded database dialog date didn't increased, skipped " << dialogs_skipped << " chats out of "
-               << dialogs.dialogs.size();
-  }
-
-  if (!(folder.last_loaded_database_dialog_date_ < folder.last_database_server_dialog_date_)) {
-    // have_more_dialogs_in_database = false;
-    new_get_dialogs_limit = 0;
-  }
-
-  if (new_get_dialogs_limit == 0) {
-    preload_folder_dialog_list_timeout_.add_timeout_in(folder_id.get(), 0.2);
-    promise.set_value(Unit());
-  } else {
-    load_folder_dialog_list_from_database(folder_id, new_get_dialogs_limit, std::move(promise));
-  }
-}
-
-void MessagesManager::preload_folder_dialog_list(FolderId folder_id) {
-  if (G()->close_flag()) {
-    LOG(INFO) << "Skip chat list preload in " << folder_id << " because of closing";
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-
-  auto &folder = *get_dialog_folder(folder_id);
-  CHECK(G()->use_message_database());
-  if (folder.load_folder_dialog_list_multipromise_.promise_count() != 0) {
-    LOG(INFO) << "Skip chat list preload in " << folder_id << ", because there is a pending load chat list request";
-    return;
-  }
-
-  if (folder.last_loaded_database_dialog_date_ < folder.last_database_server_dialog_date_) {
-    // if there are some dialogs in database, preload some of them
-    load_folder_dialog_list(folder_id, 20, true);
-  } else if (folder.folder_last_dialog_date_ != MAX_DIALOG_DATE) {
-    // otherwise load more dialogs from the server
-    load_folder_dialog_list(folder_id, MAX_GET_DIALOGS, false);
-  } else {
-    recalc_unread_count(DialogListId(folder_id), -1, false);
-  }
-}
-
-void MessagesManager::get_dialogs_from_list(DialogListId dialog_list_id, int32 limit,
-                                            Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  auto *list = get_dialog_list(dialog_list_id);
-  if (list == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat list not found"));
-  }
-
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-
-  auto task_id = ++current_get_dialogs_task_id_;
-  auto &task = get_dialogs_tasks_[task_id];
-  task.dialog_list_id = dialog_list_id;
-  task.dialog_list_unique_id = list->unique_id_;
-  task.retry_count = 5;
-  task.limit = limit;
-  task.promise = std::move(promise);
-  get_dialogs_from_list_impl(task_id);
-}
-
-void MessagesManager::get_dialogs_from_list_impl(int64 task_id) {
-  auto task_it = get_dialogs_tasks_.find(task_id);
-  CHECK(task_it != get_dialogs_tasks_.end());
-  auto &task = task_it->second;
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), task_id](Result<Unit> &&result) {
-    // on_get_dialogs_from_list can delete get_dialogs_tasks_[task_id], so it must be called later
-    send_closure_later(actor_id, &MessagesManager::on_get_dialogs_from_list, task_id, std::move(result));
-  });
-  auto dialog_ids = get_dialogs(task.dialog_list_id, MIN_DIALOG_DATE, task.limit, true, false, std::move(promise));
-  auto &list = *get_dialog_list(task.dialog_list_id);
-  auto total_count = get_dialog_total_count(list);
-  LOG(INFO) << "Receive " << dialog_ids.size() << " chats instead of " << task.limit << " out of " << total_count
-            << " in " << task.dialog_list_id;
-  CHECK(dialog_ids.size() <= static_cast<size_t>(total_count));
-  CHECK(dialog_ids.size() <= static_cast<size_t>(task.limit));
-  if (dialog_ids.size() == static_cast<size_t>(min(total_count, task.limit)) ||
-      list.list_last_dialog_date_ == MAX_DIALOG_DATE || task.retry_count == 0) {
-    auto task_promise = std::move(task.promise);
-    get_dialogs_tasks_.erase(task_it);
-    if (!task_promise) {
-      dialog_ids.clear();
-    }
-    return task_promise.set_value(
-        td_->dialog_manager_->get_chats_object(total_count, dialog_ids, "get_dialogs_from_list_impl"));
-  }
-  // nor the limit, nor the end of the list were reached; wait for the promise
-}
-
-void MessagesManager::on_get_dialogs_from_list(int64 task_id, Result<Unit> &&result) {
-  auto task_it = get_dialogs_tasks_.find(task_id);
-  if (task_it == get_dialogs_tasks_.end()) {
-    LOG(INFO) << "Chat list load task " << task_id << " has already been completed";
-    return;
-  }
-  auto &task = task_it->second;
-  auto list_ptr = get_dialog_list(task.dialog_list_id);
-  if (result.is_ok() && (list_ptr == nullptr || list_ptr->unique_id_ != task.dialog_list_unique_id)) {
-    CHECK(!task.dialog_list_id.is_folder());
-    result = Status::Error(400, "Chat list not found");
-  }
-  if (result.is_error()) {
-    LOG(INFO) << "Chat list load task " << task_id << " failed with the error " << result.error();
-    auto task_promise = std::move(task.promise);
-    get_dialogs_tasks_.erase(task_it);
-    return task_promise.set_error(result.move_as_error());
-  }
-
-  CHECK(list_ptr != nullptr);
-  auto &list = *list_ptr;
-  if (task.last_dialog_date == list.list_last_dialog_date_) {
-    // no new chats were loaded
-    task.retry_count--;
-  } else {
-    CHECK(task.last_dialog_date < list.list_last_dialog_date_);
-    task.last_dialog_date = list.list_last_dialog_date_;
-    task.retry_count = 5;
-  }
-  get_dialogs_from_list_impl(task_id);
-}
-
-void MessagesManager::mark_dialog_as_read(Dialog *d) {
-  if (td_->dialog_manager_->is_forum_channel(d->dialog_id)) {
-    // TODO read forum topics
-  }
-  if (d->server_unread_count + d->local_unread_count > 0 && d->last_message_id.is_valid()) {
-    auto it = d->ordered_messages.get_const_iterator(d->last_message_id);
-    while (*it != nullptr) {
-      auto message_id = (*it)->get_message_id();
-      if (message_id.is_server() || message_id.is_local()) {
-        read_dialog_inbox(d, message_id);
-        break;
-      }
-      --it;
-    }
-    if (*it == nullptr) {
-      // if can't find the last message, then d->last_new_message_id is the best guess
-      read_dialog_inbox(d, d->last_new_message_id);
-    }
-  }
-  if (d->is_marked_as_unread) {
-    set_dialog_is_marked_as_unread(d, false);
-  }
-}
-
-void MessagesManager::read_all_dialogs_from_list(DialogListId dialog_list_id, Promise<Unit> &&promise,
-                                                 bool is_recursive) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (get_dialog_list(dialog_list_id) == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat list not found"));
-  }
-
-  dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-    Dialog *d = dialog.get();
-    if (is_dialog_in_list(d, dialog_list_id)) {
-      mark_dialog_as_read(d);
-    }
-  });
-
-  if (is_recursive) {
-    return promise.set_value(Unit());
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_list_id, promise = std::move(promise)](
-                                                  Result<td_api::object_ptr<td_api::chats>> &&) mutable {
-    // it is expected that loading of so many chats will fail, so just ignore the error and result itself
-    send_closure(actor_id, &MessagesManager::read_all_dialogs_from_list, dialog_list_id, std::move(promise), true);
-  });
-  get_dialogs_from_list(dialog_list_id, 10000, std::move(query_promise));
-}
-
-vector<DialogId> MessagesManager::get_pinned_dialog_ids(DialogListId dialog_list_id) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (dialog_list_id.is_filter()) {
-    return td_->dialog_filter_manager_->get_pinned_dialog_ids(dialog_list_id.get_filter_id());
-  }
-
-  auto *list = get_dialog_list(dialog_list_id);
-  if (list == nullptr || !list->are_pinned_dialogs_inited_) {
-    return {};
-  }
-  return transform(list->pinned_dialogs_, [](auto &pinned_dialog) { return pinned_dialog.get_dialog_id(); });
-}
-
-void MessagesManager::reload_pinned_dialogs(DialogListId dialog_list_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(!td_->auth_manager_->is_bot());
-
-  if (dialog_list_id.is_folder()) {
-    td_->create_handler<GetPinnedDialogsQuery>(std::move(promise))->send(dialog_list_id.get_folder_id());
-  } else if (dialog_list_id.is_filter()) {
-    td_->dialog_filter_manager_->schedule_reload_dialog_filters(std::move(promise));
-  }
-}
-
-std::pair<int32, vector<DialogId>> MessagesManager::search_dialogs(const string &query, int32 limit,
-                                                                   Promise<Unit> &&promise) {
-  LOG(INFO) << "Search chats with query \"" << query << "\" and limit " << limit;
-  CHECK(!td_->auth_manager_->is_bot());
-
-  if (limit < 0) {
-    promise.set_error(Status::Error(400, "Limit must be non-negative"));
-    return {};
-  }
-  if (query.empty()) {
-    return td_->dialog_manager_->search_recently_found_dialogs(string(), limit, std::move(promise));
-  }
-
-  auto result = dialogs_hints_.search(query, limit);
-  vector<DialogId> dialog_ids;
-  dialog_ids.reserve(result.second.size());
-  for (auto key : result.second) {
-    dialog_ids.push_back(DialogId(-key));
-  }
-
-  promise.set_value(Unit());
-  return {narrow_cast<int32>(result.first), std::move(dialog_ids)};
-}
-
-vector<DialogId> MessagesManager::sort_dialogs_by_order(const vector<DialogId> &dialog_ids, int32 limit) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto fake_order = static_cast<int64>(dialog_ids.size()) + 1;
-  auto dialog_dates = transform(dialog_ids, [this, &fake_order](DialogId dialog_id) {
-    const Dialog *d = get_dialog(dialog_id);
-    CHECK(d != nullptr);
-    auto order = get_dialog_base_order(d);
-    if (is_dialog_inited(d) || order != DEFAULT_ORDER) {
-      return DialogDate(order, dialog_id);
-    }
-    // if the dialog is not inited yet, we need to assume that server knows better and the dialog needs to be returned
-    return DialogDate(fake_order--, dialog_id);
-  });
-  if (static_cast<size_t>(limit) >= dialog_dates.size()) {
-    std::sort(dialog_dates.begin(), dialog_dates.end());
-  } else {
-    std::partial_sort(dialog_dates.begin(), dialog_dates.begin() + limit, dialog_dates.end());
-    dialog_dates.resize(limit, MAX_DIALOG_DATE);
-  }
-  while (!dialog_dates.empty() && dialog_dates.back().get_order() == DEFAULT_ORDER) {
-    dialog_dates.pop_back();
-  }
-  return transform(dialog_dates, [](auto dialog_date) { return dialog_date.get_dialog_id(); });
-}
-
-void MessagesManager::block_message_sender_from_replies(MessageId message_id, bool need_delete_message,
-                                                        bool need_delete_all_messages, bool report_spam,
-                                                        Promise<Unit> &&promise) {
-  auto dialog_id = DialogId(UserManager::get_replies_bot_user_id());
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, false, AccessRights::Read, "block_message_sender_from_replies"));
-
-  auto *m = get_message_force(d, message_id, "block_message_sender_from_replies");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (m->is_outgoing || m->message_id.is_scheduled() || !m->message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Wrong message specified"));
-  }
-
-  DialogId sender_dialog_id;
-  if (m->forward_info != nullptr) {
-    sender_dialog_id = m->forward_info->get_origin().get_sender();
-  }
-  vector<MessageId> message_ids;
-  if (need_delete_all_messages && sender_dialog_id.is_valid()) {
-    message_ids = find_dialog_messages(d, [sender_dialog_id](const Message *m) {
-      return !m->is_outgoing && m->forward_info != nullptr &&
-             m->forward_info->get_origin().get_sender() == sender_dialog_id;
-    });
-    CHECK(td::contains(message_ids, message_id));
-  } else if (need_delete_message) {
-    message_ids.push_back(message_id);
-  }
-
-  delete_dialog_messages(d, message_ids, false, DELETE_MESSAGE_USER_REQUEST_SOURCE);
-
-  td_->message_query_manager_->block_message_sender_from_replies_on_server(
-      message_id, need_delete_message, need_delete_all_messages, report_spam, 0, std::move(promise));
-}
-
-bool MessagesManager::is_dialog_blocked(DialogId dialog_id) const {
-  const Dialog *d = get_dialog(dialog_id);
-  return d != nullptr && d->is_blocked;
-}
-
-void MessagesManager::add_edited_message(DialogId dialog_id, MessageId message_id,
-                                         unique_ptr<EditedMessage> edited_message) {
-  if (message_id.is_scheduled()) {
-    edited_scheduled_messages_[dialog_id][message_id.get_scheduled_server_message_id()] = std::move(edited_message);
-  } else {
-    edited_messages_[{dialog_id, message_id}] = std::move(edited_message);
-  }
-}
-
-MessagesManager::EditedMessage *MessagesManager::get_edited_message(DialogId dialog_id, MessageId message_id) {
-  return const_cast<EditedMessage *>(
-      static_cast<const MessagesManager *>(this)->get_edited_message(dialog_id, message_id));
-}
-
-const MessagesManager::EditedMessage *MessagesManager::get_edited_message(DialogId dialog_id,
-                                                                          MessageId message_id) const {
-  if (message_id.is_scheduled()) {
-    if (!message_id.is_scheduled_server()) {
-      return nullptr;
-    }
-    auto it = edited_scheduled_messages_.find(dialog_id);
-    if (it == edited_scheduled_messages_.end()) {
-      return nullptr;
-    }
-    auto message_it = it->second.find(message_id.get_scheduled_server_message_id());
-    if (message_it == it->second.end()) {
-      return nullptr;
-    }
-    return message_it->second.get();
-  } else {
-    auto message_it = edited_messages_.find({dialog_id, message_id});
-    if (message_it == edited_messages_.end()) {
-      return nullptr;
-    }
-    return message_it->second.get();
-  }
-}
-
-MessageContent *MessagesManager::get_edited_message_content(MessageFullId message_full_id) {
-  auto edited_message = get_edited_message(message_full_id.get_dialog_id(), message_full_id.get_message_id());
-  if (edited_message == nullptr) {
-    return nullptr;
-  }
-  return edited_message->content_.get();
-}
-
-const MessageContent *MessagesManager::get_edited_message_content(MessageFullId message_full_id) const {
-  auto edited_message = get_edited_message(message_full_id.get_dialog_id(), message_full_id.get_message_id());
-  if (edited_message == nullptr) {
-    return nullptr;
-  }
-  return edited_message->content_.get();
-}
-
-void MessagesManager::delete_edited_message(DialogId dialog_id, MessageId message_id) {
-  if (message_id.is_scheduled()) {
-    auto it = edited_scheduled_messages_.find(dialog_id);
-    CHECK(it != edited_scheduled_messages_.end());
-    it->second.erase(message_id.get_scheduled_server_message_id());
-  } else {
-    edited_messages_.erase({dialog_id, message_id});
-  }
-}
-
-DialogId MessagesManager::get_dialog_message_sender(MessageFullId message_full_id) {
-  const auto *m = get_message_force(message_full_id, "get_dialog_message_sender");
-  if (m == nullptr) {
-    return DialogId();
-  }
-  return get_message_sender(m);
-}
-
-bool MessagesManager::have_message_force(MessageFullId message_full_id, const char *source) {
-  return get_message_force(message_full_id, source) != nullptr;
-}
-
-bool MessagesManager::have_message_force(Dialog *d, MessageId message_id, const char *source) {
-  return get_message_force(d, message_id, source) != nullptr;
-}
-
-MessagesManager::Message *MessagesManager::get_message(MessageFullId message_full_id) {
-  Dialog *d = get_dialog(message_full_id.get_dialog_id());
-  if (d == nullptr) {
-    return nullptr;
-  }
-
-  return get_message(d, message_full_id.get_message_id());
-}
-
-const MessagesManager::Message *MessagesManager::get_message(MessageFullId message_full_id) const {
-  const Dialog *d = get_dialog(message_full_id.get_dialog_id());
-  if (d == nullptr) {
-    return nullptr;
-  }
-
-  return get_message(d, message_full_id.get_message_id());
-}
-
-MessagesManager::Message *MessagesManager::get_message_force(MessageFullId message_full_id, const char *source) {
-  Dialog *d = get_dialog_force(message_full_id.get_dialog_id(), source);
-  if (d == nullptr) {
-    return nullptr;
-  }
-
-  return get_message_force(d, message_full_id.get_message_id(), source);
-}
-
-MessageFullId MessagesManager::get_replied_message_id(DialogId dialog_id, const Message *m) {
-  if (m->reply_to_story_full_id.is_valid()) {
-    return {};
-  }
-  auto message_full_id = get_message_content_replied_message_id(dialog_id, m->content.get());
-  if (message_full_id.get_message_id().is_valid()) {
-    CHECK(m->replied_message_info.is_empty());
-    return message_full_id;
-  }
-  auto reply_message_full_id = m->replied_message_info.get_reply_message_full_id(dialog_id, true);
-  if (reply_message_full_id.get_message_id() != MessageId()) {
-    return reply_message_full_id;
-  }
-  if (m->top_thread_message_id.is_valid() && m->top_thread_message_id != m->message_id) {
-    return {dialog_id, m->top_thread_message_id};
-  }
-  return {};
-}
-
-void MessagesManager::get_message_force_from_server(Dialog *d, MessageId message_id, Promise<Unit> &&promise,
-                                                    tl_object_ptr<telegram_api::InputMessage> input_message) {
-  LOG(INFO) << "Get " << message_id << " in " << d->dialog_id << " using " << to_string(input_message);
-  auto dialog_type = d->dialog_id.get_type();
-  auto m = get_message_force(d, message_id, "get_message_force_from_server");
-  if (m == nullptr && !is_deleted_message(d, message_id) && dialog_type != DialogType::SecretChat) {
-    if (message_id.is_valid() && message_id.is_server()) {
-      if (d->last_new_message_id != MessageId() && message_id > d->last_new_message_id &&
-          dialog_type != DialogType::Channel && !td_->auth_manager_->is_bot()) {
-        // message will not be added to the dialog anyway
-        return promise.set_value(Unit());
-      }
-
-      return get_message_from_server({d->dialog_id, message_id}, std::move(promise), "get_message_force_from_server",
-                                     std::move(input_message));
-    }
-    if (message_id.is_valid_scheduled() && message_id.is_scheduled_server() && input_message == nullptr) {
-      return get_message_from_server({d->dialog_id, message_id}, std::move(promise), "get_message_force_from_server");
-    }
-  }
-
-  promise.set_value(Unit());
-}
-
-void MessagesManager::get_message(MessageFullId message_full_id, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(message_full_id.get_dialog_id(), true, AccessRights::Read, "get_message"));
-  get_message_force_from_server(d, message_full_id.get_message_id(), std::move(promise));
-}
-
-MessageFullId MessagesManager::get_replied_message(DialogId dialog_id, MessageId message_id, bool force,
-                                                   Promise<Unit> &&promise) {
-  Dialog *d = get_dialog_force(dialog_id, "get_replied_message");
-  if (d == nullptr) {
-    promise.set_error(Status::Error(400, "Chat not found"));
-    return MessageFullId();
-  }
-
-  message_id = get_persistent_message_id(d, message_id);
-  auto m = get_message_force(d, message_id, "get_replied_message");
-  if (m == nullptr) {
-    if (force) {
-      promise.set_value(Unit());
-    } else {
-      get_message_force_from_server(d, message_id, std::move(promise));
-    }
-    return MessageFullId();
-  }
-
-  tl_object_ptr<telegram_api::InputMessage> input_message;
-  auto replied_message_id = get_replied_message_id(dialog_id, m);
-  if (replied_message_id.get_dialog_id() != dialog_id) {
-    dialog_id = replied_message_id.get_dialog_id();
-    if (!td_->dialog_manager_->have_dialog_info_force(dialog_id, "get_replied_message")) {
-      promise.set_value(Unit());
-      return {};
-    }
-    if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-      promise.set_value(Unit());
-      return {};
-    }
-
-    force_create_dialog(dialog_id, "get_replied_message");
-    d = get_dialog_force(dialog_id, "get_replied_message");
-    if (d == nullptr) {
-      promise.set_error(Status::Error(500, "Chat with replied message not found"));
-      return {};
-    }
-  } else if (m->message_id.is_valid() && m->message_id.is_server()) {
-    input_message = make_tl_object<telegram_api::inputMessageReplyTo>(m->message_id.get_server_message_id().get());
-  }
-  get_message_force_from_server(d, replied_message_id.get_message_id(), std::move(promise), std::move(input_message));
-
-  return replied_message_id;
-}
-
-Result<MessageFullId> MessagesManager::get_top_thread_message_full_id(DialogId dialog_id, const Message *m,
-                                                                      bool allow_non_root) const {
-  CHECK(m != nullptr);
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Message is scheduled");
-  }
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return Status::Error(400, "Chat can't have message threads");
-  }
-  if (!m->reply_info.is_empty() && m->reply_info.is_comment_) {
-    if (!is_visible_message_reply_info(dialog_id, m)) {
-      return Status::Error(400, "Message has no comments");
-    }
-    if (m->message_id.is_yet_unsent()) {
-      return Status::Error(400, "Message is not sent yet");
-    }
-    return MessageFullId{DialogId(m->reply_info.channel_id_), m->linked_top_thread_message_id};
-  } else {
-    if (!m->top_thread_message_id.is_valid()) {
-      return Status::Error(400, "Message has no thread");
-    }
-    if (!allow_non_root && m->top_thread_message_id != m->message_id &&
-        !td_->chat_manager_->get_channel_has_linked_channel(dialog_id.get_channel_id())) {
-      return Status::Error(400, "Root message must be used to get the message thread");
-    }
-    return MessageFullId{dialog_id, m->top_thread_message_id};
-  }
-}
-
-void MessagesManager::get_message_thread(DialogId dialog_id, MessageId message_id,
-                                         Promise<MessageThreadInfo> &&promise) {
-  LOG(INFO) << "Get message thread from " << message_id << " in " << dialog_id;
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, false, AccessRights::Read, "get_message_thread"));
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return promise.set_error(Status::Error(400, "Chat is not a supergroup or a channel"));
-  }
-  if (message_id.is_scheduled()) {
-    return promise.set_error(Status::Error(400, "Scheduled messages can't have message threads"));
-  }
-
-  MessageFullId top_thread_message_full_id;
-  if (message_id == MessageId(ServerMessageId(1)) && td_->dialog_manager_->is_forum_channel(dialog_id)) {
-    top_thread_message_full_id = MessageFullId{dialog_id, message_id};
-  } else {
-    message_id = get_persistent_message_id(d, message_id);
-    auto m = get_message_force(d, message_id, "get_message_thread");
-    if (m == nullptr) {
-      return promise.set_error(Status::Error(400, "Message not found"));
-    }
-
-    TRY_RESULT_PROMISE_ASSIGN(promise, top_thread_message_full_id, get_top_thread_message_full_id(dialog_id, m, true));
-    if ((m->reply_info.is_empty() || !m->reply_info.is_comment_) &&
-        top_thread_message_full_id.get_message_id() != m->message_id) {
-      CHECK(dialog_id == top_thread_message_full_id.get_dialog_id());
-      // get information about the thread from the top message
-      message_id = top_thread_message_full_id.get_message_id();
-      CHECK(message_id.is_valid());
-    }
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, message_id,
-                                               promise = std::move(promise)](Result<MessageThreadInfo> result) mutable {
-    if (result.is_error()) {
-      return promise.set_error(result.move_as_error());
-    }
-    send_closure(actor_id, &MessagesManager::on_get_discussion_message, dialog_id, message_id, result.move_as_ok(),
-                 std::move(promise));
-  });
-
-  td_->message_query_manager_->get_discussion_message(dialog_id, message_id, top_thread_message_full_id.get_dialog_id(),
-                                                      top_thread_message_full_id.get_message_id(),
-                                                      std::move(query_promise));
-}
-
-void MessagesManager::on_get_discussion_message(DialogId dialog_id, MessageId message_id,
-                                                MessageThreadInfo &&message_thread_info,
-                                                Promise<MessageThreadInfo> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  Dialog *d = get_dialog_force(dialog_id, "on_get_discussion_message");
-  CHECK(d != nullptr);
-
-  CHECK(message_id.is_valid());
-  auto m = get_message_force(d, message_id, "on_get_discussion_message");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (message_thread_info.message_ids.empty()) {
-    if (message_thread_info.dialog_id != dialog_id &&
-        !td_->dialog_manager_->have_input_peer(message_thread_info.dialog_id, false, AccessRights::Read)) {
-      return promise.set_error(Status::Error(400, "Can't access message comments"));
-    }
-    return promise.set_error(Status::Error(400, "Message has no thread"));
-  }
-
-  DialogId expected_dialog_id;
-  if (m->reply_info.is_comment_) {
-    if (!is_active_message_reply_info(dialog_id, m->reply_info)) {
-      return promise.set_error(Status::Error(400, "Message has no comments"));
-    }
-    expected_dialog_id = DialogId(m->reply_info.channel_id_);
-  } else if (message_id == MessageId(ServerMessageId(1)) && td_->dialog_manager_->is_forum_channel(dialog_id)) {
-    // General forum topic
-    expected_dialog_id = dialog_id;
-  } else {
-    if (!m->top_thread_message_id.is_valid()) {
-      return promise.set_error(Status::Error(400, "Message has no thread"));
-    }
-    expected_dialog_id = dialog_id;
-  }
-
-  if (expected_dialog_id != dialog_id && m->reply_info.is_comment_ &&
-      m->linked_top_thread_message_id != message_thread_info.message_ids.back()) {
-    auto linked_d = get_dialog_force(expected_dialog_id, "on_get_discussion_message 2");
-    CHECK(linked_d != nullptr);
-    td::remove_if(message_thread_info.message_ids, [&](MessageId linked_message_id) {
-      return !have_message_force(linked_d, linked_message_id, "on_get_discussion_message 4");
-    });
-    if (message_thread_info.message_ids.empty()) {
-      return promise.set_error(Status::Error(400, "Message has no thread"));
-    }
-    auto linked_message_id = message_thread_info.message_ids.back();
-    Message *linked_m = get_message_force(linked_d, linked_message_id, "on_get_discussion_message 3");
-    CHECK(linked_m != nullptr && linked_m->message_id.is_server());
-    if (linked_m->top_thread_message_id == linked_m->message_id &&
-        is_active_message_reply_info(expected_dialog_id, linked_m->reply_info)) {
-      if (m->linked_top_thread_message_id.is_valid()) {
-        LOG(ERROR) << "Comment message identifier for " << message_id << " in " << dialog_id << " changed from "
-                   << m->linked_top_thread_message_id << " to " << linked_message_id;
-      }
-      m->linked_top_thread_message_id = linked_message_id;
-      on_dialog_updated(dialog_id, "on_get_discussion_message");
-    }
-  }
-  promise.set_value(std::move(message_thread_info));
-}
-
-td_api::object_ptr<td_api::messageThreadInfo> MessagesManager::get_message_thread_info_object(
-    const MessageThreadInfo &info) {
-  if (info.message_ids.empty()) {
-    return nullptr;
-  }
-
-  Dialog *d = get_dialog(info.dialog_id);
-  CHECK(d != nullptr);
-  td_api::object_ptr<td_api::messageReplyInfo> reply_info;
-  vector<td_api::object_ptr<td_api::message>> messages;
-  messages.reserve(info.message_ids.size());
-  bool is_forum_topic = false;
-  for (auto message_id : info.message_ids) {
-    const Message *m = get_message_force(d, message_id, "get_message_thread_info_object");
-    auto message = get_message_object(d->dialog_id, m, "get_message_thread_info_object");
-    if (message != nullptr) {
-      if (message->interaction_info_ != nullptr && message->interaction_info_->reply_info_ != nullptr) {
-        reply_info = m->reply_info.get_message_reply_info_object(td_, d->last_read_inbox_message_id);
-        CHECK(reply_info != nullptr);
-      }
-      is_forum_topic = message->is_topic_message_;
-      messages.push_back(std::move(message));
-    }
-  }
-  if (messages.size() != 1) {
-    is_forum_topic = false;
-  } else if (info.message_ids[0] == MessageId(ServerMessageId(1)) &&
-             td_->dialog_manager_->is_forum_channel(info.dialog_id)) {
-    // General forum topic
-    is_forum_topic = true;
-  }
-  if (reply_info == nullptr && !is_forum_topic) {
-    return nullptr;
-  }
-
-  MessageId top_thread_message_id;
-  td_api::object_ptr<td_api::draftMessage> draft_message;
-  if (!info.message_ids.empty()) {
-    top_thread_message_id = info.message_ids.back();
-    if (can_send_message(d->dialog_id).is_ok()) {
-      const Message *m = get_message_force(d, top_thread_message_id, "get_message_thread_info_object 2");
-      if (m != nullptr && !m->reply_info.is_comment_ && is_active_message_reply_info(d->dialog_id, m->reply_info)) {
-        draft_message = get_draft_message_object(td_, m->thread_draft_message);
-      }
-    }
-  }
-  return td_api::make_object<td_api::messageThreadInfo>(
-      get_chat_id_object(d->dialog_id, "messageThreadInfo"), top_thread_message_id.get(), std::move(reply_info),
-      info.unread_message_count, std::move(messages), std::move(draft_message));
-}
-
-Status MessagesManager::can_get_message_read_date(DialogId dialog_id, const Message *m) const {
-  if (td_->auth_manager_->is_bot()) {
-    return Status::Error(400, "User is bot");
-  }
-  CHECK(m != nullptr);
-  if (!m->is_outgoing) {
-    return Status::Error(400, "Can't get read date of incoming messages");
-  }
-  if (G()->unix_time() - m->date > td_->option_manager_->get_option_integer("pm_read_date_expire_period")) {
-    return Status::Error(400, "Message is too old");
-  }
-
-  if (dialog_id.get_type() != DialogType::User) {
-    return Status::Error(400, "Read date can be received only in private chats");
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return Status::Error(400, "Can't access the chat");
-  }
-  auto user_id = dialog_id.get_user_id();
-  if (td_->user_manager_->is_user_bot(user_id)) {
-    return Status::Error(400, "The user is a bot");
-  }
-  if (td_->user_manager_->is_user_support(user_id)) {
-    return Status::Error(400, "The user is a Telegram support account");
-  }
-
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Scheduled messages can't be read");
-  }
-  if (m->message_id.is_yet_unsent()) {
-    return Status::Error(400, "Yet unsent messages can't be read");
-  }
-  if (m->message_id.is_local()) {
-    return Status::Error(400, "Local messages can't be read");
-  }
-  CHECK(m->message_id.is_server());
-
-  return Status::OK();
-}
-
-void MessagesManager::get_message_read_date(MessageFullId message_full_id,
-                                            Promise<td_api::object_ptr<td_api::MessageReadDate>> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "get_message_read_date"));
-
-  auto m = get_message_force(d, message_full_id.get_message_id(), "get_message_read_date");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  TRY_STATUS_PROMISE(promise, can_get_message_read_date(dialog_id, m));
-
-  if (d->last_read_outbox_message_id < m->message_id) {
-    return promise.set_value(td_api::make_object<td_api::messageReadDateUnread>());
-  }
-  if (td_->user_manager_->get_user_read_dates_private(dialog_id.get_user_id())) {
-    return promise.set_value(td_api::make_object<td_api::messageReadDateUserPrivacyRestricted>());
-  }
-
-  td_->message_query_manager_->get_message_read_date_from_server(message_full_id, std::move(promise));
-}
-
-Status MessagesManager::can_get_message_viewers(MessageFullId message_full_id) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog_force(dialog_id, "can_get_message_viewers");
-  if (d == nullptr) {
-    return Status::Error(400, "Chat not found");
-  }
-
-  auto m = get_message_force(d, message_full_id.get_message_id(), "can_get_message_viewers");
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-
-  return can_get_message_viewers(dialog_id, m);
-}
-
-Status MessagesManager::can_get_message_viewers(DialogId dialog_id, const Message *m) const {
-  if (td_->auth_manager_->is_bot()) {
-    return Status::Error(400, "User is bot");
-  }
-  CHECK(m != nullptr);
-  if (!m->is_outgoing) {
-    return Status::Error(400, "Can't get viewers of incoming messages");
-  }
-  if (G()->unix_time() - m->date >
-      td_->option_manager_->get_option_integer("chat_read_mark_expire_period", 7 * 86400)) {
-    return Status::Error(400, "Message is too old");
-  }
-
-  int32 participant_count = 0;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return Status::Error(400, "Can't get message viewers in private chats");
-    case DialogType::Chat:
-      if (!td_->chat_manager_->get_chat_is_active(dialog_id.get_chat_id())) {
-        return Status::Error(400, "Chat is deactivated");
-      }
-      participant_count = td_->chat_manager_->get_chat_participant_count(dialog_id.get_chat_id());
-      break;
-    case DialogType::Channel:
-      if (td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-        return Status::Error(400, "Can't get message viewers in channel chats");
-      }
-      if (td_->chat_manager_->get_channel_effective_has_hidden_participants(dialog_id.get_channel_id(),
-                                                                            "can_get_message_viewers")) {
-        return Status::Error(400, "Participant list is hidden in the chat");
-      }
-      participant_count = td_->chat_manager_->get_channel_participant_count(dialog_id.get_channel_id());
-      break;
-    case DialogType::SecretChat:
-      return Status::Error(400, "Can't get message viewers in secret chats");
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return Status::OK();
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return Status::Error(400, "Can't access the chat");
-  }
-  if (participant_count == 0) {
-    return Status::Error(400, "Chat is empty or have unknown number of members");
-  }
-  if (participant_count > td_->option_manager_->get_option_integer("chat_read_mark_size_threshold", 100)) {
-    return Status::Error(400, "Chat is too big");
-  }
-
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Scheduled messages can't have viewers");
-  }
-  if (m->message_id.is_yet_unsent()) {
-    return Status::Error(400, "Yet unsent messages can't have viewers");
-  }
-  if (m->message_id.is_local()) {
-    return Status::Error(400, "Local messages can't have viewers");
-  }
-  CHECK(m->message_id.is_server());
-
-  if (m->content->get_type() == MessageContentType::Poll &&
-      get_message_content_poll_is_anonymous(td_, m->content.get())) {
-    return Status::Error(400, "Anonymous poll viewers are unavailable");
-  }
-
-  return Status::OK();
-}
-
-void MessagesManager::translate_message_text(MessageFullId message_full_id, const string &to_language_code,
-                                             Promise<td_api::object_ptr<td_api::formattedText>> &&promise) {
-  auto m = get_message_force(message_full_id, "translate_message_text");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  auto text = get_message_content_text(m->content.get());
-  if (text == nullptr || text->text.empty()) {
-    return promise.set_value(td_api::make_object<td_api::formattedText>());
-  }
-
-  auto skip_bot_commands = need_skip_bot_commands(message_full_id.get_dialog_id(), m);
-  auto max_media_timestamp = get_message_max_media_timestamp(m);
-  td_->translation_manager_->translate_text(*text, skip_bot_commands, max_media_timestamp, to_language_code,
-                                            std::move(promise));
-}
-
-void MessagesManager::reload_dialog_notification_settings(DialogId dialog_id, Promise<Unit> &&promise,
-                                                          const char *source) {
-  LOG(INFO) << "Reload notification settings for " << dialog_id << " from " << source;
-  const Dialog *d = get_dialog(dialog_id);
-  if (d != nullptr) {
-    td_->notification_settings_manager_->send_get_dialog_notification_settings_query(dialog_id, MessageId(),
-                                                                                     std::move(promise));
-  } else {
-    send_get_dialog_query(dialog_id, std::move(promise), 0, source);
-  }
-}
-
-MessageId MessagesManager::get_dialog_pinned_message(DialogId dialog_id, Promise<Unit> &&promise) {
-  Dialog *d = get_dialog_force(dialog_id, "get_dialog_pinned_message");
-  if (d == nullptr) {
-    promise.set_error(Status::Error(400, "Chat not found"));
-    return MessageId();
-  }
-
-  LOG(INFO) << "Get pinned message in " << dialog_id << " with "
-            << (d->is_last_pinned_message_id_inited ? "inited" : "unknown") << " pinned " << d->last_pinned_message_id;
-
-  if (!d->is_last_pinned_message_id_inited) {
-    // must call get_dialog_info_full as expected in fix_new_dialog
-    td_->dialog_manager_->get_dialog_info_full(dialog_id, std::move(promise), "get_dialog_pinned_message 1");
-    return MessageId();
-  }
-
-  td_->dialog_manager_->get_dialog_info_full(dialog_id, Auto(), "get_dialog_pinned_message 2");
-
-  if (d->last_pinned_message_id.is_valid()) {
-    tl_object_ptr<telegram_api::InputMessage> input_message;
-    if (dialog_id.get_type() == DialogType::Channel) {
-      input_message = make_tl_object<telegram_api::inputMessagePinned>();
-    }
-    get_message_force_from_server(d, d->last_pinned_message_id, std::move(promise), std::move(input_message));
-  } else {
-    promise.set_value(Unit());
-  }
-
-  return d->last_pinned_message_id;
-}
-
-void MessagesManager::get_callback_query_message(DialogId dialog_id, MessageId message_id, int64 callback_query_id,
-                                                 Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Read, "get_callback_query_message"));
-  if (!message_id.is_valid() || !message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Invalid message identifier specified"));
-  }
-
-  LOG(INFO) << "Get callback query " << message_id << " in " << dialog_id << " for query " << callback_query_id;
-
-  auto input_message = make_tl_object<telegram_api::inputMessageCallbackQuery>(message_id.get_server_message_id().get(),
-                                                                               callback_query_id);
-  get_message_force_from_server(d, message_id, std::move(promise), std::move(input_message));
-}
-
-void MessagesManager::get_messages(DialogId dialog_id, const vector<MessageId> &message_ids, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "get_messages"));
-
-  bool is_secret = dialog_id.get_type() == DialogType::SecretChat;
-  vector<MessageFullId> missed_message_ids;
-  for (auto message_id : message_ids) {
-    if (!message_id.is_valid() && !message_id.is_valid_scheduled()) {
-      return promise.set_error(Status::Error(400, "Invalid message identifier"));
-    }
-
-    auto *m = get_message_force(d, message_id, "get_messages");
-    if (m == nullptr && message_id.is_any_server() && !is_secret) {
-      missed_message_ids.emplace_back(dialog_id, message_id);
-      continue;
-    }
-  }
-
-  if (!missed_message_ids.empty()) {
-    return get_messages_from_server(std::move(missed_message_ids), std::move(promise), "get_messages");
-  }
-
-  promise.set_value(Unit());
-}
-
-void MessagesManager::get_message_from_server(MessageFullId message_full_id, Promise<Unit> &&promise,
-                                              const char *source,
-                                              tl_object_ptr<telegram_api::InputMessage> input_message) {
-  get_messages_from_server({message_full_id}, std::move(promise), source, std::move(input_message));
-}
-
-void MessagesManager::get_messages_from_server(vector<MessageFullId> &&message_ids, Promise<Unit> &&promise,
-                                               const char *source,
-                                               tl_object_ptr<telegram_api::InputMessage> input_message) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (message_ids.empty()) {
-    LOG(ERROR) << "Empty message_ids from " << source;
-    return promise.set_error(Status::Error(500, "There are no messages specified to fetch"));
-  }
-
-  if (input_message != nullptr) {
-    CHECK(message_ids.size() == 1);
-  }
-
-  vector<tl_object_ptr<telegram_api::InputMessage>> ordinary_message_ids;
-  FlatHashMap<ChannelId, vector<tl_object_ptr<telegram_api::InputMessage>>, ChannelIdHash> channel_message_ids;
-  FlatHashMap<DialogId, vector<int32>, DialogIdHash> scheduled_message_ids;
-  for (auto &message_full_id : message_ids) {
-    auto dialog_id = message_full_id.get_dialog_id();
-    auto message_id = message_full_id.get_message_id();
-    if (!message_id.is_valid() || !message_id.is_server()) {
-      if (message_id.is_valid_scheduled() && message_id.is_scheduled_server() && dialog_id.is_valid()) {
-        scheduled_message_ids[dialog_id].push_back(message_id.get_scheduled_server_message_id().get());
-      }
-      continue;
-    }
-
-    if (input_message == nullptr) {
-      input_message = make_tl_object<telegram_api::inputMessageID>(message_id.get_server_message_id().get());
-    }
-
-    switch (dialog_id.get_type()) {
-      case DialogType::User:
-      case DialogType::Chat:
-        ordinary_message_ids.push_back(std::move(input_message));
-        break;
-      case DialogType::Channel:
-        channel_message_ids[dialog_id.get_channel_id()].push_back(std::move(input_message));
-        break;
-      case DialogType::SecretChat:
-        LOG(ERROR) << "Can't get " << message_full_id << " from server from " << source;
-        break;
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-
-  MultiPromiseActorSafe mpas{"GetMessagesOnServerMultiPromiseActor"};
-  mpas.add_promise(std::move(promise));
-  auto lock = mpas.get_promise();
-
-  const size_t MAX_SLICE_SIZE = 200;  // server-side limit
-  for (auto &slice_ordinary_message_ids : vector_split(std::move(ordinary_message_ids), MAX_SLICE_SIZE)) {
-    td_->create_handler<GetMessagesQuery>(mpas.get_promise())->send(std::move(slice_ordinary_message_ids));
-  }
-
-  for (auto &it : scheduled_message_ids) {
-    auto dialog_id = it.first;
-    have_dialog_force(dialog_id, "get_messages_from_server");
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      LOG(ERROR) << "Can't find info about " << dialog_id << " to get a message from it from " << source;
-      mpas.get_promise().set_error(Status::Error(400, "Can't access the chat"));
-      continue;
-    }
-    td_->create_handler<GetScheduledMessagesQuery>(mpas.get_promise())
-        ->send(dialog_id, std::move(input_peer), std::move(it.second));
-  }
-
-  for (auto &it : channel_message_ids) {
-    td_->chat_manager_->have_channel_force(it.first, "get_messages_from_server");
-    auto input_channel = td_->chat_manager_->get_input_channel(it.first);
-    if (input_channel == nullptr) {
-      LOG(ERROR) << "Can't find info about " << it.first << " to get a message from it from " << source;
-      mpas.get_promise().set_error(Status::Error(400, "Can't access the chat"));
-      continue;
-    }
-    const auto *d = get_dialog_force(DialogId(it.first));
-    for (auto &slice_message_ids : vector_split(std::move(it.second), MAX_SLICE_SIZE)) {
-      if (input_channel == nullptr) {
-        input_channel = td_->chat_manager_->get_input_channel(it.first);
-        CHECK(input_channel != nullptr);
-      }
-      td_->create_handler<GetChannelMessagesQuery>(mpas.get_promise())
-          ->send(it.first, std::move(input_channel), std::move(slice_message_ids),
-                 d == nullptr ? MessageId() : d->last_new_message_id);
-    }
-  }
-  lock.set_value(Unit());
-}
-
-void MessagesManager::get_message_properties(DialogId dialog_id, MessageId message_id,
-                                             Promise<td_api::object_ptr<td_api::messageProperties>> &&promise) {
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "get_message_properties"));
-  const Message *m = get_message_force(d, message_id, "get_message_properties");
-  if (m == nullptr) {
-    if (message_id.is_valid_sponsored()) {
-      return promise.set_value(td_api::make_object<td_api::messageProperties>());
-    }
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  bool can_delete = can_delete_message(dialog_id, m);
-  bool is_scheduled = m->message_id.is_scheduled();
-  bool is_from_saved_messages = (dialog_id == td_->dialog_manager_->get_my_dialog_id());
-  bool can_delete_for_self = false;
-  bool can_delete_for_all_users = can_delete && can_revoke_message(dialog_id, m);
-  auto dialog_type = dialog_id.get_type();
-  if (can_delete) {
-    switch (dialog_type) {
-      case DialogType::User:
-      case DialogType::Chat:
-        // TODO allow to delete yet unsent message just for self
-        can_delete_for_self = !m->message_id.is_yet_unsent() || is_from_saved_messages;
-        break;
-      case DialogType::Channel:
-      case DialogType::SecretChat:
-        can_delete_for_self = !can_delete_for_all_users;
-        break;
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-    }
-  }
-  if (is_scheduled) {
-    can_delete_for_self = is_from_saved_messages;
-    can_delete_for_all_users = !can_delete_for_self;
-  }
-
-  auto is_bot = td_->auth_manager_->is_bot();
-  auto can_be_saved = can_save_message(dialog_id, m);
-  auto can_be_edited = can_edit_message(dialog_id, m, false, is_bot);
-  auto can_be_forwarded = can_be_saved && can_forward_message(dialog_id, m);
-  auto can_be_copied_to_secret_chat =
-      can_be_forwarded && can_send_message_content_to_secret_chat(m->content->get_type());
-  auto can_be_paid = get_invoice_message_info({dialog_id, m->message_id}).is_ok();
-  auto can_be_pinned = can_pin_message(dialog_id, m).is_ok();
-  auto can_be_replied =
-      message_id.is_valid() && !(message_id == MessageId(ServerMessageId(1)) && dialog_type == DialogType::Channel) &&
-      !m->message_id.is_yet_unsent() && (!m->message_id.is_local() || dialog_type == DialogType::SecretChat) &&
-      (dialog_type != DialogType::Chat || td_->chat_manager_->get_chat_is_active(dialog_id.get_chat_id())) &&
-      can_send_message(dialog_id).is_ok();
-  auto can_be_replied_in_another_chat = can_be_forwarded && m->message_id.is_server();
-  auto can_be_shared_in_story = can_share_message_in_story(dialog_id, m);
-  auto can_edit_media = can_edit_message_media(dialog_id, m, false);
-  auto can_edit_scheduling_state = can_edit_message_scheduling_state(m);
-  auto can_get_statistics = can_get_message_statistics(dialog_id, m);
-  auto can_get_message_thread = get_top_thread_message_full_id(dialog_id, m, false).is_ok();
-  auto can_get_read_date = can_get_message_read_date(dialog_id, m).is_ok();
-  auto can_get_viewers = can_get_message_viewers(dialog_id, m).is_ok();
-  auto can_get_media_timestamp_links = can_get_media_timestamp_link(dialog_id, m).is_ok();
-  auto can_get_link = can_get_media_timestamp_links && dialog_type == DialogType::Channel;
-  auto can_get_embedding_code = can_get_message_embedding_code(dialog_id, m).is_ok();
-  auto can_recognize_speech = can_recognize_message_speech(dialog_id, m);
-  auto can_report_chat =
-      td_->dialog_manager_->can_report_dialog(dialog_id) && can_report_message(m->message_id).is_ok();
-  auto can_report_reactions = can_report_message_reactions(dialog_id, m);
-  auto can_report_supergroup_spam =
-      dialog_id.get_type() == DialogType::Channel &&
-      td_->chat_manager_->is_megagroup_channel(dialog_id.get_channel_id()) &&
-      td_->chat_manager_->get_channel_status(dialog_id.get_channel_id()).is_administrator() &&
-      can_report_message(m->message_id).is_ok();
-  auto can_set_fact_check = can_set_message_fact_check(dialog_id, m);
-  auto need_show_statistics = can_get_statistics && (m->view_count >= 100 || m->forward_count > 0);
-  promise.set_value(td_api::make_object<td_api::messageProperties>(
-      can_be_copied_to_secret_chat, can_delete_for_self, can_delete_for_all_users, can_be_edited, can_be_forwarded,
-      can_be_paid, can_be_pinned, can_be_replied, can_be_replied_in_another_chat, can_be_saved, can_be_shared_in_story,
-      can_edit_media, can_edit_scheduling_state, can_get_embedding_code, can_get_link, can_get_media_timestamp_links,
-      can_get_message_thread, can_get_read_date, can_get_statistics, can_get_viewers, can_recognize_speech,
-      can_report_chat, can_report_reactions, can_report_supergroup_spam, can_set_fact_check, need_show_statistics));
-}
-
-bool MessagesManager::is_message_edited_recently(MessageFullId message_full_id, int32 seconds) {
-  if (seconds < 0) {
-    return false;
-  }
-  if (!message_full_id.get_message_id().is_valid()) {
-    return false;
-  }
-
-  auto m = get_message_force(message_full_id, "is_message_edited_recently");
-  if (m == nullptr) {
-    return true;
-  }
-
-  return m->edit_date >= G()->unix_time() - seconds;
-}
-
-MessagesManager::ReportDialogFromActionBar MessagesManager::report_dialog_from_action_bar(
-    DialogId dialog_id, Promise<td_api::object_ptr<td_api::ReportChatResult>> &promise) {
-  ReportDialogFromActionBar result;
-  Dialog *d = nullptr;
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    auto user_dialog_id = DialogId(td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id()));
-    d = get_dialog_force(user_dialog_id, "report_dialog_from_action_bar");
-    if (d == nullptr) {
-      promise.set_error(Status::Error(400, "Chat with the user not found"));
-      result.is_reported_ = true;
-      return result;
-    }
-  } else {
-    d = get_dialog(dialog_id);
-    CHECK(d != nullptr);
-  }
-  result.know_action_bar_ = d->know_action_bar;
-
-  if (d->know_action_bar && d->action_bar != nullptr && d->action_bar->can_report_spam()) {
-    result.is_reported_ = true;
-    hide_dialog_action_bar(d);
-    auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<Unit> result) mutable {
-      if (result.is_error()) {
-        return promise.set_error(result.move_as_error());
-      }
-      promise.set_value(td_api::make_object<td_api::reportChatResultOk>());
-    });
-    td_->dialog_manager_->toggle_dialog_report_spam_state_on_server(dialog_id, true, 0, std::move(query_promise));
-  }
-  return result;
-}
-
-Status MessagesManager::can_get_media_timestamp_link(DialogId dialog_id, const Message *m) {
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-
-  if (dialog_id.get_type() != DialogType::Channel) {
-    if (!can_message_content_have_media_timestamp(m->content.get()) || m->forward_info == nullptr ||
-        m->forward_info->is_imported()) {
-      return Status::Error(400, "Message links are available only for messages in supergroups and channel chats");
-    }
-    auto origin_message_full_id = m->forward_info->get_origin_message_full_id();
-    auto origin_message_id = origin_message_full_id.get_message_id();
-    if (!origin_message_id.is_valid() || !origin_message_id.is_server()) {
-      return Status::Error(400, "Message links are available only for messages in supergroups and channel chats");
-    }
-    return Status::OK();
-  }
-
-  if (m->message_id.is_yet_unsent()) {
-    return Status::Error(400, "Message is not sent yet");
-  }
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Message is scheduled");
-  }
-  if (!m->message_id.is_server()) {
-    return Status::Error(400, "Message is local");
-  }
-  return Status::OK();
-}
-
-Status MessagesManager::can_report_message(MessageId message_id) {
-  if (message_id.is_valid_scheduled()) {
-    return Status::Error(400, "Can't report scheduled messages");
-  }
-  if (message_id.is_valid_sponsored()) {
-    return Status::Error(400, "Can't report sponsored messages");
-  }
-  if (!message_id.is_valid()) {
-    return Status::Error(400, "Message not found");
-  }
-  if (!message_id.is_server()) {
-    return Status::Error(400, "Message can't be reported");
-  }
-  return Status::OK();
-}
-
-bool MessagesManager::can_report_message_reactions(DialogId dialog_id, const Message *m) const {
-  CHECK(m != nullptr);
-  if (dialog_id.get_type() != DialogType::Channel || td_->dialog_manager_->is_broadcast_channel(dialog_id) ||
-      !td_->chat_manager_->is_channel_public(dialog_id.get_channel_id())) {
-    return false;
-  }
-  if (m->message_id.is_scheduled() || !m->message_id.is_server()) {
-    return false;
-  }
-  if (is_discussion_message(dialog_id, m)) {
-    return false;
-  }
-
-  return true;
-}
-
-bool MessagesManager::can_recognize_message_speech(DialogId dialog_id, const Message *m) const {
-  if (td_->auth_manager_->is_bot() || m == nullptr || !m->message_id.is_valid() || !m->message_id.is_server() ||
-      dialog_id.get_type() == DialogType::SecretChat) {
-    return false;
-  }
-  auto content_type = m->content->get_type();
-  if (content_type != MessageContentType::VideoNote && content_type != MessageContentType::VoiceNote) {
-    return false;
-  }
-  return true;
-}
-
-bool MessagesManager::can_set_message_fact_check(DialogId dialog_id, const Message *m) const {
-  if (!td_->option_manager_->get_option_boolean("can_edit_fact_check")) {
-    return false;
-  }
-  if (td_->auth_manager_->is_bot() || m == nullptr || !m->message_id.is_valid() || !m->message_id.is_server() ||
-      !td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return false;
-  }
-  auto content_type = m->content->get_type();
-  switch (content_type) {
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::Photo:
-    case MessageContentType::Text:
-    case MessageContentType::Video:
-      // ok
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-
-Result<std::pair<string, bool>> MessagesManager::get_message_link(MessageFullId message_full_id, int32 media_timestamp,
-                                                                  bool for_group, bool in_message_thread) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "get_message_link"));
-
-  auto *m = get_message_force(d, message_full_id.get_message_id(), "get_message_link");
-  TRY_STATUS(can_get_media_timestamp_link(dialog_id, m));
-
-  auto message_id = m->message_id;
-  if (dialog_id.get_type() != DialogType::Channel) {
-    if (media_timestamp == 0) {
-      return Status::Error(400, "Message can't have link");
-    }
-    CHECK(m->forward_info != nullptr);
-
-    auto origin_message_full_id = m->forward_info->get_origin_message_full_id();
-    dialog_id = origin_message_full_id.get_dialog_id();
-    message_id = origin_message_full_id.get_message_id();
-    CHECK(dialog_id.get_type() == DialogType::Channel);
-    for_group = false;
-    in_message_thread = false;
-    auto channel_message = get_message(origin_message_full_id);
-    if (channel_message != nullptr && channel_message->media_album_id == 0) {
-      for_group = true;  // default is true
-    }
-  } else {
-    if (m->media_album_id == 0) {
-      for_group = true;  // default is true
-    }
-  }
-  if (media_timestamp <= 0 || !can_message_content_have_media_timestamp(m->content.get())) {
-    media_timestamp = 0;
-  }
-  if (media_timestamp != 0) {
-    for_group = false;
-    auto duration = get_message_content_media_duration(m->content.get(), td_);
-    if (duration != 0 && media_timestamp > duration) {
-      media_timestamp = 0;
-    }
-  }
-
-  bool is_forum = td_->dialog_manager_->is_forum_channel(dialog_id);
-  if (in_message_thread && !is_forum &&
-      (!m->top_thread_message_id.is_valid() || !m->top_thread_message_id.is_server() ||
-       is_deleted_message(d, m->top_thread_message_id) || td_->dialog_manager_->is_broadcast_channel(dialog_id))) {
-    in_message_thread = false;
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    td_->create_handler<ExportChannelMessageLinkQuery>(Promise<Unit>())
-        ->send(dialog_id.get_channel_id(), message_id, for_group, true);
-  }
-
-  SliceBuilder sb;
-  sb << LinkManager::get_t_me_url();
-
-  auto add_media_timestamp = [&] {
-    if (media_timestamp < 60) {
-      sb << media_timestamp;
-    } else if (media_timestamp < 3600) {
-      sb << media_timestamp / 60 << 'm' << media_timestamp % 60 << 's';
-    } else {
-      sb << media_timestamp / 3600 << 'h' << media_timestamp / 60 % 60 << 'm' << media_timestamp % 60 << 's';
-    }
-  };
-
-  if (in_message_thread && !is_forum) {
-    // try to generate a comment link
-    CHECK(dialog_id == d->dialog_id);
-    auto *top_m = get_message_force(d, m->top_thread_message_id, "get_public_message_link");
-    if (is_discussion_message(dialog_id, top_m) && is_active_message_reply_info(dialog_id, top_m->reply_info)) {
-      auto linked_message_full_id = top_m->forward_info->get_last_message_full_id();
-      auto linked_dialog_id = linked_message_full_id.get_dialog_id();
-      auto linked_message_id = linked_message_full_id.get_message_id();
-      auto linked_d = get_dialog(linked_dialog_id);
-      CHECK(linked_d != nullptr);
-      CHECK(linked_dialog_id.get_type() == DialogType::Channel);
-      auto *linked_m = get_message_force(linked_d, linked_message_id, "get_public_message_link");
-      auto channel_username = td_->chat_manager_->get_channel_first_username(linked_dialog_id.get_channel_id());
-      if (linked_m != nullptr && is_active_message_reply_info(linked_dialog_id, linked_m->reply_info) &&
-          linked_message_id.is_server() &&
-          td_->dialog_manager_->have_input_peer(linked_dialog_id, false, AccessRights::Read) &&
-          !channel_username.empty()) {
-        sb << channel_username << '/' << linked_message_id.get_server_message_id().get()
-           << "?comment=" << message_id.get_server_message_id().get();
-        if (!for_group) {
-          sb << "&single";
-        }
-        if (media_timestamp > 0) {
-          sb << "&t=";
-          add_media_timestamp();
-        }
-        return std::make_pair(sb.as_cslice().str(), true);
-      }
-    }
-  }
-
-  auto dialog_username = td_->chat_manager_->get_channel_first_username(dialog_id.get_channel_id());
-  bool is_public = !dialog_username.empty();
-  if (is_public) {
-    sb << dialog_username;
-  } else {
-    sb << "c/" << dialog_id.get_channel_id().get();
-  }
-  if (in_message_thread && is_forum) {
-    auto top_thread_message_id = m->is_topic_message ? m->top_thread_message_id : MessageId(ServerMessageId(1));
-    if (top_thread_message_id != message_id) {
-      sb << '/' << top_thread_message_id.get_server_message_id().get();
-    }
-    in_message_thread = false;
-  }
-  sb << '/' << message_id.get_server_message_id().get();
-
-  char separator = '?';
-  if (in_message_thread) {
-    sb << separator << "thread=" << m->top_thread_message_id.get_server_message_id().get();
-    separator = '&';
-  }
-  if (!for_group) {
-    sb << separator << "single";
-    separator = '&';
-  }
-  if (media_timestamp > 0) {
-    sb << separator << "t=";
-    add_media_timestamp();
-    separator = '&';
-  }
-  CHECK(separator == '?' || separator == '&');
-
-  return std::make_pair(sb.as_cslice().str(), is_public);
-}
-
-Status MessagesManager::can_get_message_embedding_code(DialogId dialog_id, const Message *m) const {
-  if (dialog_id.get_type() != DialogType::Channel ||
-      td_->chat_manager_->get_channel_first_username(dialog_id.get_channel_id()).empty()) {
-    return Status::Error(
-        400, "Message embedding code is available only for messages in public supergroups and channel chats");
-  }
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-  if (m->message_id.is_yet_unsent()) {
-    return Status::Error(400, "Message is not sent yet");
-  }
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Message is scheduled");
-  }
-  if (!m->message_id.is_server()) {
-    return Status::Error(400, "Message is local");
-  }
-  return Status::OK();
-}
-
-string MessagesManager::get_message_embedding_code(MessageFullId message_full_id, bool for_group,
-                                                   Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  auto r_d = check_dialog_access(dialog_id, false, AccessRights::Read, "get_message_embedding_code");
-  if (r_d.is_error()) {
-    promise.set_error(r_d.move_as_error());
-    return {};
-  }
-  auto d = r_d.move_as_ok();
-  auto *m = get_message_force(d, message_full_id.get_message_id(), "get_message_embedding_code");
-  auto status = can_get_message_embedding_code(dialog_id, m);
-  if (status.is_error()) {
-    promise.set_error(std::move(status));
-    return {};
-  }
-
-  if (m->media_album_id == 0) {
-    for_group = true;  // default is true
-  }
-
-  auto &links = message_embedding_codes_[for_group][dialog_id].embedding_codes_;
-  auto it = links.find(m->message_id);
-  if (it == links.end()) {
-    td_->create_handler<ExportChannelMessageLinkQuery>(std::move(promise))
-        ->send(dialog_id.get_channel_id(), m->message_id, for_group, false);
-    return {};
-  }
-
-  promise.set_value(Unit());
-  return it->second;
-}
-
-void MessagesManager::on_get_public_message_link(MessageFullId message_full_id, bool for_group, string url,
-                                                 string html) {
-  LOG_IF(ERROR, url.empty() && html.empty()) << "Receive empty public link for " << message_full_id;
-  auto dialog_id = message_full_id.get_dialog_id();
-  auto message_id = message_full_id.get_message_id();
-  message_embedding_codes_[for_group][dialog_id].embedding_codes_[message_id] = std::move(html);
-}
-
-void MessagesManager::get_message_link_info(Slice url, Promise<MessageLinkInfo> &&promise) {
-  auto r_message_link_info = LinkManager::get_message_link_info(url);
-  if (r_message_link_info.is_error()) {
-    return promise.set_error(Status::Error(400, r_message_link_info.error().message()));
-  }
-
-  auto info = r_message_link_info.move_as_ok();
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), info, promise = std::move(promise)](Result<DialogId> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_value(std::move(info));
-        }
-        send_closure(actor_id, &MessagesManager::on_get_message_link_dialog, std::move(info), result.ok(),
-                     std::move(promise));
-      });
-  td_->dialog_manager_->resolve_dialog(info.username, info.channel_id, std::move(query_promise));
-}
-
-void MessagesManager::on_get_message_link_dialog(MessageLinkInfo &&info, DialogId dialog_id,
-                                                 Promise<MessageLinkInfo> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  Dialog *d = get_dialog_force(dialog_id, "on_get_message_link_dialog");
-  CHECK(d != nullptr);
-  get_message_force_from_server(d, info.message_id,
-                                PromiseCreator::lambda([actor_id = actor_id(this), info = std::move(info), dialog_id,
-                                                        promise = std::move(promise)](Result<Unit> &&result) mutable {
-                                  if (result.is_error()) {
-                                    return promise.set_value(std::move(info));
-                                  }
-                                  send_closure(actor_id, &MessagesManager::on_get_message_link_message, std::move(info),
-                                               dialog_id, std::move(promise));
-                                }));
-}
-
-void MessagesManager::on_get_message_link_message(MessageLinkInfo &&info, DialogId dialog_id,
-                                                  Promise<MessageLinkInfo> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto message_id = info.message_id;
-  Message *m = get_message_force({dialog_id, message_id}, "on_get_message_link_message");
-  if (info.comment_message_id == MessageId() || m == nullptr ||
-      !td_->dialog_manager_->is_broadcast_channel(dialog_id) || !m->reply_info.is_comment_ ||
-      !is_active_message_reply_info(dialog_id, m->reply_info)) {
-    return promise.set_value(std::move(info));
-  }
-
-  if (td_->chat_manager_->have_channel_force(m->reply_info.channel_id_, "on_get_message_link_message")) {
-    force_create_dialog(DialogId(m->reply_info.channel_id_), "on_get_message_link_message");
-    on_get_message_link_discussion_message(std::move(info), DialogId(m->reply_info.channel_id_), std::move(promise));
-    return;
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), info = std::move(info),
-                                               promise = std::move(promise)](Result<MessageThreadInfo> result) mutable {
-    if (result.is_error() || result.ok().message_ids.empty()) {
-      return promise.set_value(std::move(info));
-    }
-    send_closure(actor_id, &MessagesManager::on_get_message_link_discussion_message, std::move(info),
-                 result.ok().dialog_id, std::move(promise));
-  });
-
-  td_->message_query_manager_->get_discussion_message(dialog_id, message_id, DialogId(m->reply_info.channel_id_),
-                                                      MessageId(), std::move(query_promise));
-}
-
-void MessagesManager::on_get_message_link_discussion_message(MessageLinkInfo &&info, DialogId comment_dialog_id,
-                                                             Promise<MessageLinkInfo> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  CHECK(comment_dialog_id.is_valid());
-  info.comment_dialog_id = comment_dialog_id;
-
-  Dialog *d = get_dialog_force(comment_dialog_id, "on_get_message_link_discussion_message");
-  if (d == nullptr) {
-    return promise.set_error(Status::Error(500, "Chat not found"));
-  }
-
-  auto comment_message_id = info.comment_message_id;
-  get_message_force_from_server(
-      d, comment_message_id,
-      PromiseCreator::lambda([info = std::move(info), promise = std::move(promise)](Result<Unit> &&result) mutable {
-        return promise.set_value(std::move(info));
-      }));
-}
-
-td_api::object_ptr<td_api::messageLinkInfo> MessagesManager::get_message_link_info_object(
-    const MessageLinkInfo &info) const {
-  CHECK(info.username.empty() == info.channel_id.is_valid());
-
-  bool is_public = !info.username.empty();
-  DialogId dialog_id = info.comment_dialog_id.is_valid()
-                           ? info.comment_dialog_id
-                           : (is_public ? td_->dialog_manager_->get_resolved_dialog_by_username(info.username)
-                                        : DialogId(info.channel_id));
-  MessageId top_thread_message_id;
-  MessageId message_id = info.comment_dialog_id.is_valid() ? info.comment_message_id : info.message_id;
-  td_api::object_ptr<td_api::message> message;
-  int32 media_timestamp = 0;
-  bool for_album = false;
-
-  const Dialog *d = get_dialog(dialog_id);
-  if (d == nullptr) {
-    dialog_id = DialogId();
-    top_thread_message_id = MessageId();
-  } else {
-    const Message *m = get_message(d, message_id);
-    if (m != nullptr) {
-      message = get_message_object(dialog_id, m, "get_message_link_info_object");
-      for_album = !info.is_single && m->media_album_id != 0;
-      if (info.comment_dialog_id.is_valid() || info.for_comment || m->is_topic_message) {
-        top_thread_message_id = m->top_thread_message_id;
-      } else if (td_->dialog_manager_->is_forum_channel(dialog_id) &&
-                 info.top_thread_message_id == MessageId(ServerMessageId(1))) {
-        // General topic
-        top_thread_message_id = info.top_thread_message_id;
-      } else {
-        top_thread_message_id = MessageId();
-      }
-      if (can_message_content_have_media_timestamp(m->content.get())) {
-        auto duration = get_message_content_media_duration(m->content.get(), td_);
-        if (duration == 0 || info.media_timestamp <= duration) {
-          media_timestamp = info.media_timestamp;
-        }
-      }
-      if (m->content->get_type() == MessageContentType::TopicCreate && top_thread_message_id.is_valid()) {
-        message = nullptr;
-        CHECK(!for_album);
-        CHECK(media_timestamp == 0);
-      }
-    } else if (!info.comment_dialog_id.is_valid() && dialog_id.get_type() == DialogType::Channel &&
-               !td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-      top_thread_message_id = info.top_thread_message_id;
-    }
-  }
-
-  return td_api::make_object<td_api::messageLinkInfo>(is_public, get_chat_id_object(dialog_id, "messageLinkInfo"),
-                                                      top_thread_message_id.get(), std::move(message), media_timestamp,
-                                                      for_album);
-}
-
-Status MessagesManager::can_add_dialog_to_filter(DialogId dialog_id) {
-  if (!dialog_id.is_valid()) {
-    return Status::Error(400, "Invalid chat identifier specified");
-  }
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "can_add_dialog_to_filter"));
-  if (d->order == DEFAULT_ORDER) {
-    return Status::Error(400, "Chat is not in the chat list");
-  }
-  return Status::OK();
-}
-
-Status MessagesManager::delete_dialog_reply_markup(DialogId dialog_id, MessageId message_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return Status::Error(400, "Bots can't delete chat reply markup");
-  }
-  if (message_id.is_scheduled()) {
-    return Status::Error(400, "Wrong message identifier specified");
-  }
-  if (!message_id.is_valid()) {
-    return Status::Error(400, "Invalid message identifier specified");
-  }
-
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "delete_dialog_reply_markup"));
-  if (d->reply_markup_message_id != message_id) {
-    return Status::OK();
-  }
-
-  Message *m = get_message_force(d, message_id, "delete_dialog_reply_markup");
-  CHECK(m != nullptr);
-  CHECK(m->reply_markup != nullptr);
-
-  if (m->reply_markup->type == ReplyMarkup::Type::ForceReply) {
-    set_dialog_reply_markup(d, MessageId());
-  } else if (m->reply_markup->type == ReplyMarkup::Type::ShowKeyboard) {
-    if (!m->reply_markup->is_one_time_keyboard) {
-      return Status::Error(400, "Do not need to delete non one-time keyboard");
-    }
-    if (m->reply_markup->is_personal) {
-      m->reply_markup->is_personal = false;
-      set_dialog_reply_markup(d, message_id);
-
-      on_message_changed(d, m, true, "delete_dialog_reply_markup");
-    }
-  } else {
-    // non-bots can't have messages with RemoveKeyboard
-    UNREACHABLE();
-  }
-  return Status::OK();
-}
-
-class MessagesManager::SaveDialogDraftMessageOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-  }
-};
-
-Status MessagesManager::set_dialog_draft_message(DialogId dialog_id, MessageId top_thread_message_id,
-                                                 tl_object_ptr<td_api::draftMessage> &&draft_message) {
-  if (td_->auth_manager_->is_bot()) {
-    return Status::Error(400, "Bots can't change chat draft message");
-  }
-
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Write, "set_dialog_draft_message"));
-  TRY_STATUS(can_send_message(dialog_id));
-
-  TRY_STATUS(can_use_top_thread_message_id(d, top_thread_message_id, MessageInputReplyTo()));
-
-  TRY_RESULT(new_draft_message,
-             DraftMessage::get_draft_message(td_, dialog_id, top_thread_message_id, std::move(draft_message)));
-
-  if (top_thread_message_id != MessageId()) {
-    CHECK(top_thread_message_id.is_valid());
-    CHECK(top_thread_message_id.is_server());
-    auto m = get_message_force(d, top_thread_message_id, "set_dialog_draft_message");
-    if (m == nullptr || m->reply_info.is_comment_ || !is_active_message_reply_info(dialog_id, m->reply_info)) {
-      return Status::OK();
-    }
-
-    if (need_update_draft_message(m->thread_draft_message, new_draft_message, false)) {
-      m->thread_draft_message = std::move(new_draft_message);
-      on_message_changed(d, m, false, "set_dialog_draft_message");
-    }
-
-    return Status::OK();
-  }
-
-  if (update_dialog_draft_message(d, std::move(new_draft_message), false, true)) {
-    if (dialog_id.get_type() != DialogType::SecretChat && !is_local_draft_message(d->draft_message)) {
-      if (G()->use_message_database()) {
-        SaveDialogDraftMessageOnServerLogEvent log_event;
-        log_event.dialog_id_ = dialog_id;
-        add_log_event(d->save_draft_message_log_event_id, get_log_event_storer(log_event),
-                      LogEvent::HandlerType::SaveDialogDraftMessageOnServer, "draft");
-      }
-
-      pending_draft_message_timeout_.set_timeout_in(dialog_id.get(), d->open_count > 0 ? MIN_SAVE_DRAFT_DELAY : 0);
-    }
-  }
-  return Status::OK();
-}
-
-void MessagesManager::save_dialog_draft_message_on_server(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  Promise<Unit> promise;
-  if (d->save_draft_message_log_event_id.log_event_id != 0) {
-    d->save_draft_message_log_event_id.generation++;
-    promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id,
-                                      generation = d->save_draft_message_log_event_id.generation](Result<Unit> result) {
-      if (!G()->close_flag()) {
-        send_closure(actor_id, &MessagesManager::on_saved_dialog_draft_message, dialog_id, generation);
-      }
-    });
-  }
-
-  save_draft_message(td_, dialog_id, d->draft_message, std::move(promise));
-}
-
-void MessagesManager::on_saved_dialog_draft_message(DialogId dialog_id, uint64 generation) {
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  delete_log_event(d->save_draft_message_log_event_id, generation, "draft");
-}
-
-void MessagesManager::clear_all_draft_messages(bool exclude_secret_chats, Promise<Unit> &&promise) {
-  if (!exclude_secret_chats) {
-    dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-      Dialog *d = dialog.get();
-      if (dialog_id.get_type() == DialogType::SecretChat) {
-        update_dialog_draft_message(d, nullptr, false, true);
-      }
-    });
-  }
-  ::td::clear_all_draft_messages(td_, std::move(promise));
-}
-
-int32 MessagesManager::get_pinned_dialogs_limit(DialogListId dialog_list_id) const {
-  if (dialog_list_id.is_filter()) {
-    return DialogFilter::get_max_filter_dialogs();
-  }
-
-  Slice key{"pinned_chat_count_max"};
-  int32 default_limit = 5;
-  if (!dialog_list_id.is_folder() || dialog_list_id.get_folder_id() != FolderId::main()) {
-    key = Slice("pinned_archived_chat_count_max");
-    default_limit = 100;
-  }
-  int32 limit = clamp(narrow_cast<int32>(td_->option_manager_->get_option_integer(key)), 0, 1000);
-  if (limit <= 0) {
-    if (td_->option_manager_->get_option_boolean("is_premium")) {
-      default_limit *= 2;
-    }
-    return default_limit;
-  }
-  return limit;
-}
-
-Status MessagesManager::toggle_dialog_is_pinned(DialogListId dialog_list_id, DialogId dialog_id, bool is_pinned) {
-  if (td_->auth_manager_->is_bot()) {
-    return Status::Error(400, "Bots can't change chat pin state");
-  }
-
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "toggle_dialog_is_pinned"));
-  if (d->order == DEFAULT_ORDER && is_pinned) {
-    return Status::Error(400, "The chat can't be pinned");
-  }
-
-  auto *list = get_dialog_list(dialog_list_id);
-  if (list == nullptr) {
-    return Status::Error(400, "Chat list not found");
-  }
-  if (!list->are_pinned_dialogs_inited_) {
-    return Status::Error(400, "Pinned chats must be loaded first");
-  }
-
-  bool was_pinned = is_dialog_pinned(dialog_list_id, dialog_id);
-  if (is_pinned == was_pinned) {
-    return Status::OK();
-  }
-
-  if (dialog_list_id.is_filter()) {
-    return td_->dialog_filter_manager_->set_dialog_is_pinned(
-        dialog_list_id.get_filter_id(), td_->dialog_manager_->get_input_dialog_id(dialog_id), is_pinned);
-  }
-
-  CHECK(dialog_list_id.is_folder());
-  auto folder_id = dialog_list_id.get_folder_id();
-  if (is_pinned) {
-    if (d->folder_id != folder_id) {
-      return Status::Error(400, "Chat not in the list");
-    }
-
-    auto pinned_dialog_ids = get_pinned_dialog_ids(dialog_list_id);
-    auto pinned_dialog_count = pinned_dialog_ids.size();
-    auto secret_pinned_dialog_count =
-        std::count_if(pinned_dialog_ids.begin(), pinned_dialog_ids.end(),
-                      [](DialogId dialog_id) { return dialog_id.get_type() == DialogType::SecretChat; });
-    size_t dialog_count = dialog_id.get_type() == DialogType::SecretChat
-                              ? secret_pinned_dialog_count
-                              : pinned_dialog_count - secret_pinned_dialog_count;
-
-    if (dialog_count >= static_cast<size_t>(get_pinned_dialogs_limit(dialog_list_id))) {
-      return Status::Error(400, "The maximum number of pinned chats exceeded");
-    }
-  }
-
-  if (set_dialog_is_pinned(dialog_list_id, d, is_pinned)) {
-    td_->dialog_manager_->toggle_dialog_is_pinned_on_server(dialog_id, is_pinned, 0);
-  }
-  return Status::OK();
-}
-
-bool MessagesManager::set_folder_pinned_dialogs(FolderId folder_id, vector<DialogId> old_dialog_ids,
-                                                vector<DialogId> new_dialog_ids) {
-  LOG(INFO) << "Reorder pinned chats in " << folder_id << " from " << old_dialog_ids << " to " << new_dialog_ids;
-
-  std::reverse(old_dialog_ids.begin(), old_dialog_ids.end());
-  std::reverse(new_dialog_ids.begin(), new_dialog_ids.end());
-
-  FlatHashSet<DialogId, DialogIdHash> all_old_pinned_dialog_ids;
-  for (auto dialog_id : old_dialog_ids) {
-    CHECK(dialog_id.is_valid());
-    all_old_pinned_dialog_ids.insert(dialog_id);
-  }
-
-  bool are_pinned_dialogs_saved = false;
-  auto old_it = old_dialog_ids.begin();
-  for (auto dialog_id : new_dialog_ids) {
-    all_old_pinned_dialog_ids.erase(dialog_id);
-    while (old_it < old_dialog_ids.end()) {
-      if (*old_it == dialog_id) {
-        break;
-      }
-      ++old_it;
-    }
-    if (old_it < old_dialog_ids.end()) {
-      // leave dialog where it is
-      ++old_it;
-      continue;
-    }
-    if (set_dialog_is_pinned(dialog_id, true)) {
-      are_pinned_dialogs_saved = true;
-    }
-  }
-  for (auto dialog_id : all_old_pinned_dialog_ids) {
-    Dialog *d = get_dialog_force(dialog_id, "set_folder_pinned_dialogs 1");
-    if (d == nullptr) {
-      LOG(ERROR) << "Failed to find " << dialog_id << " to unpin in " << folder_id;
-      force_create_dialog(dialog_id, "set_folder_pinned_dialogs 2", true);
-      d = get_dialog_force(dialog_id, "set_folder_pinned_dialogs 3");
-    }
-    if (d != nullptr && set_dialog_is_pinned(DialogListId(folder_id), d, false)) {
-      are_pinned_dialogs_saved = true;
-    }
-  }
-  return are_pinned_dialogs_saved;
-}
-
-Status MessagesManager::set_pinned_dialogs(DialogListId dialog_list_id, vector<DialogId> dialog_ids) {
-  if (td_->auth_manager_->is_bot()) {
-    return Status::Error(400, "Bots can't reorder pinned chats");
-  }
-
-  int32 dialog_count = 0;
-  int32 secret_dialog_count = 0;
-  auto dialog_count_limit = get_pinned_dialogs_limit(dialog_list_id);
-  FlatHashSet<DialogId, DialogIdHash> new_pinned_dialog_ids;
-  for (auto dialog_id : dialog_ids) {
-    TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "set_pinned_dialogs"));
-    if (d->order == DEFAULT_ORDER) {
-      return Status::Error(400, "The chat can't be pinned");
-    }
-    if (dialog_list_id.is_folder() && d->folder_id != dialog_list_id.get_folder_id()) {
-      return Status::Error(400, "Chat not in the list");
-    }
-    if (dialog_id.get_type() == DialogType::SecretChat) {
-      secret_dialog_count++;
-    } else {
-      dialog_count++;
-    }
-
-    if (dialog_count > dialog_count_limit || secret_dialog_count > dialog_count_limit) {
-      return Status::Error(400, "The maximum number of pinned chats exceeded");
-    }
-
-    new_pinned_dialog_ids.insert(dialog_id);
-  }
-  if (new_pinned_dialog_ids.size() != dialog_ids.size()) {
-    return Status::Error(400, "Duplicate chats in the list of pinned chats");
-  }
-
-  auto *list = get_dialog_list(dialog_list_id);
-  if (list == nullptr) {
-    return Status::Error(400, "Chat list not found");
-  }
-  if (!list->are_pinned_dialogs_inited_) {
-    return Status::Error(400, "Pinned chats must be loaded first");
-  }
-
-  auto pinned_dialog_ids = get_pinned_dialog_ids(dialog_list_id);
-  if (pinned_dialog_ids == dialog_ids) {
-    return Status::OK();
-  }
-
-  auto server_old_dialog_ids = DialogId::remove_secret_chat_dialog_ids(pinned_dialog_ids);
-  auto server_new_dialog_ids = DialogId::remove_secret_chat_dialog_ids(dialog_ids);
-
-  if (dialog_list_id.is_filter()) {
-    return td_->dialog_filter_manager_->set_pinned_dialog_ids(
-        dialog_list_id.get_filter_id(),
-        transform(dialog_ids,
-                  [this](DialogId dialog_id) { return td_->dialog_manager_->get_input_dialog_id(dialog_id); }),
-        server_old_dialog_ids != server_new_dialog_ids);
-  }
-
-  auto folder_id = dialog_list_id.get_folder_id();
-  set_folder_pinned_dialogs(folder_id, std::move(pinned_dialog_ids), std::move(dialog_ids));
-
-  if (server_old_dialog_ids != server_new_dialog_ids) {
-    td_->dialog_manager_->reorder_pinned_dialogs_on_server(folder_id, server_new_dialog_ids, 0);
-  }
-  return Status::OK();
-}
-
-Status MessagesManager::toggle_dialog_view_as_messages(DialogId dialog_id, bool view_as_messages) {
-  TRY_RESULT(d, check_dialog_access(dialog_id, false, AccessRights::Read, "toggle_dialog_view_as_messages"));
-  bool is_saved_messages = dialog_id == td_->dialog_manager_->get_my_dialog_id();
-  if (!is_saved_messages && !td_->dialog_manager_->is_forum_channel(dialog_id)) {
-    return Status::Error(400, "The method is available only in forum channels");
-  }
-
-  if (view_as_messages == d->view_as_messages) {
-    return Status::OK();
-  }
-
-  set_dialog_view_as_messages(d, view_as_messages, "toggle_dialog_view_as_messages");
-
-  if (!is_saved_messages) {
-    td_->dialog_manager_->toggle_dialog_view_as_messages_on_server(dialog_id, view_as_messages, 0);
-  }
-  return Status::OK();
-}
-
-Status MessagesManager::toggle_dialog_is_marked_as_unread(DialogId dialog_id, bool is_marked_as_unread) {
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "toggle_dialog_is_marked_as_unread"));
-  if (is_marked_as_unread == d->is_marked_as_unread) {
-    return Status::OK();
-  }
-
-  set_dialog_is_marked_as_unread(d, is_marked_as_unread);
-
-  td_->dialog_manager_->toggle_dialog_is_marked_as_unread_on_server(dialog_id, is_marked_as_unread, 0);
-  return Status::OK();
-}
-
-Status MessagesManager::toggle_dialog_is_translatable(DialogId dialog_id, bool is_translatable) {
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "toggle_dialog_is_translatable"));
-  if (is_translatable == d->is_translatable) {
-    return Status::OK();
-  }
-
-  set_dialog_is_translatable(d, is_translatable);
-
-  td_->dialog_manager_->toggle_dialog_is_translatable_on_server(dialog_id, is_translatable, 0);
-  return Status::OK();
-}
-
-Status MessagesManager::set_message_sender_block_list(const td_api::object_ptr<td_api::MessageSender> &sender,
-                                                      const td_api::object_ptr<td_api::BlockList> &block_list) {
-  TRY_RESULT(dialog_id, get_message_sender_dialog_id(td_, sender, true, false));
-  BlockListId block_list_id(block_list);
-  bool is_blocked = block_list_id == BlockListId::main();
-  bool is_blocked_for_stories = block_list_id == BlockListId::stories();
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-        return Status::Error(
-            400, is_blocked || is_blocked_for_stories ? Slice("Can't block self") : Slice("Can't unblock self"));
-      }
-      break;
-    case DialogType::Chat:
-      return Status::Error(400, "Basic group chats can't be blocked");
-    case DialogType::Channel:
-      // ok
-      break;
-    case DialogType::SecretChat: {
-      auto user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      if (!user_id.is_valid() || !td_->user_manager_->have_user_force(user_id, "set_message_sender_block_list")) {
-        return Status::Error(400, "The secret chat can't be blocked");
-      }
-      dialog_id = DialogId(user_id);
-      break;
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "set_message_sender_block_list");
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Know)) {
-    return Status::Error(400, "Message sender isn't accessible");
-  }
-  if (d != nullptr) {
-    if (is_blocked == d->is_blocked && is_blocked_for_stories == d->is_blocked_for_stories) {
-      return Status::OK();
-    }
-    set_dialog_is_blocked(d, is_blocked, is_blocked_for_stories);
-  } else {
-    CHECK(dialog_id.get_type() == DialogType::User);
-    td_->user_manager_->on_update_user_is_blocked(dialog_id.get_user_id(), is_blocked, is_blocked_for_stories);
-  }
-
-  td_->dialog_manager_->toggle_dialog_is_blocked_on_server(dialog_id, is_blocked, is_blocked_for_stories, 0);
-  return Status::OK();
-}
-
-Status MessagesManager::toggle_dialog_silent_send_message(DialogId dialog_id, bool silent_send_message) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "toggle_dialog_silent_send_message"));
-
-  if (update_dialog_silent_send_message(d, silent_send_message)) {
-    update_dialog_notification_settings_on_server(dialog_id, false);
-  }
-
-  return Status::OK();
-}
-
-class MessagesManager::UpdateDialogNotificationSettingsOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-  }
-};
-
-void MessagesManager::update_dialog_notification_settings_on_server(DialogId dialog_id, bool from_binlog) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  if (!from_binlog && td_->notification_settings_manager_->get_input_notify_peer(dialog_id, MessageId()) == nullptr) {
-    // don't even create new binlog events
-    return;
-  }
-
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  if (!from_binlog && G()->use_message_database()) {
-    UpdateDialogNotificationSettingsOnServerLogEvent log_event;
-    log_event.dialog_id_ = dialog_id;
-    add_log_event(d->save_notification_settings_log_event_id, get_log_event_storer(log_event),
-                  LogEvent::HandlerType::UpdateDialogNotificationSettingsOnServer, "notification settings");
-  }
-
-  Promise<Unit> promise;
-  if (d->save_notification_settings_log_event_id.log_event_id != 0) {
-    d->save_notification_settings_log_event_id.generation++;
-    promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), dialog_id,
-         generation = d->save_notification_settings_log_event_id.generation](Result<Unit> result) {
-          if (!G()->close_flag()) {
-            send_closure(actor_id, &MessagesManager::on_updated_dialog_notification_settings, dialog_id, generation);
-          }
-        });
-  }
-
-  send_update_dialog_notification_settings_query(d, std::move(promise));
-}
-
-void MessagesManager::send_update_dialog_notification_settings_query(const Dialog *d, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(d != nullptr);
-  // TODO do not send two queries simultaneously or use InvokeAfter
-  td_->notification_settings_manager_->update_dialog_notify_settings(d->dialog_id, MessageId(),
-                                                                     d->notification_settings, std::move(promise));
-}
-
-void MessagesManager::on_updated_dialog_notification_settings(DialogId dialog_id, uint64 generation) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  delete_log_event(d->save_notification_settings_log_event_id, generation, "notification settings");
-}
-
-Status MessagesManager::set_dialog_client_data(DialogId dialog_id, string &&client_data) {
-  Dialog *d = get_dialog_force(dialog_id, "set_dialog_client_data");
-  if (d == nullptr) {
-    return Status::Error(400, "Chat not found");
-  }
-
-  d->client_data = std::move(client_data);
-  on_dialog_updated(d->dialog_id, "set_dialog_client_data");
-  return Status::OK();
-}
-
-bool MessagesManager::is_dialog_inited(const Dialog *d) {
-  return d != nullptr && d->notification_settings.is_synchronized && d->is_last_read_inbox_message_id_inited &&
-         d->is_last_read_outbox_message_id_inited;
-}
-
-int32 MessagesManager::get_dialog_mute_until(const Dialog *d) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(d != nullptr);
-  if (d->notification_settings.use_default_mute_until) {
-    auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(d->dialog_id);
-    return td_->notification_settings_manager_->get_scope_mute_until(scope);
-  } else {
-    return d->notification_settings.mute_until;
-  }
-}
-
-bool MessagesManager::is_dialog_muted(const Dialog *d) const {
-  return get_dialog_mute_until(d) != 0;
-}
-
-bool MessagesManager::is_dialog_pinned_message_notifications_disabled(const Dialog *d) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(d != nullptr);
-  if (d->notification_settings.use_default_disable_pinned_message_notifications) {
-    auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(d->dialog_id);
-    return td_->notification_settings_manager_->get_scope_disable_pinned_message_notifications(scope);
-  }
-
-  return d->notification_settings.disable_pinned_message_notifications;
-}
-
-bool MessagesManager::is_dialog_mention_notifications_disabled(const Dialog *d) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(d != nullptr);
-  if (d->notification_settings.use_default_disable_mention_notifications) {
-    auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(d->dialog_id);
-    return td_->notification_settings_manager_->get_scope_disable_mention_notifications(scope);
-  }
-
-  return d->notification_settings.disable_mention_notifications;
-}
-
-void MessagesManager::create_dialog(DialogId dialog_id, bool force, Promise<Unit> &&promise) {
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    if (!td_->dialog_manager_->have_dialog_info_force(dialog_id, "create dialog")) {
-      return promise.set_error(Status::Error(400, "Chat info not found"));
-    }
-    if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-      return promise.set_error(Status::Error(400, "Can't access the chat"));
-    }
-  }
-
-  if (force || td_->auth_manager_->is_bot() || dialog_id.get_type() == DialogType::SecretChat) {
-    force_create_dialog(dialog_id, "create dialog");
-  } else {
-    const Dialog *d = get_dialog_force(dialog_id, "create_dialog");
-    if (!is_dialog_inited(d)) {
-      return send_get_dialog_query(dialog_id, std::move(promise), 0, "create_dialog");
-    }
-  }
-
-  promise.set_value(Unit());
-}
-
-bool MessagesManager::is_dialog_opened(DialogId dialog_id) const {
-  const Dialog *d = get_dialog(dialog_id);
-  return d != nullptr && d->open_count > 0;
-}
-
-Status MessagesManager::open_dialog(DialogId dialog_id) {
-  Dialog *d = get_dialog_force(dialog_id, "open_dialog");
-  if (d == nullptr) {
-    return Status::Error(400, "Chat not found");
-  }
-
-  open_dialog(d);
-  return Status::OK();
-}
-
-Status MessagesManager::close_dialog(DialogId dialog_id) {
-  Dialog *d = get_dialog_force(dialog_id, "close_dialog");
-  if (d == nullptr) {
-    return Status::Error(400, "Chat not found");
-  }
-
-  close_dialog(d);
-  return Status::OK();
-}
-
-Status MessagesManager::view_messages(DialogId dialog_id, vector<MessageId> message_ids, MessageSource source,
-                                      bool force_read) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "view_messages"));
-
-  if (source == MessageSource::Auto) {
-    if (d->open_count > 0) {
-      source = MessageSource::DialogHistory;
-    } else {
-      source = MessageSource::Other;
-    }
-  }
-  bool is_dialog_history = source == MessageSource::DialogHistory || source == MessageSource::MessageThreadHistory ||
-                           source == MessageSource::ForumTopicHistory;
-  bool need_read = force_read || is_dialog_history;
-  bool need_update_view_count = is_dialog_history || source == MessageSource::HistoryPreview ||
-                                source == MessageSource::DialogList || source == MessageSource::Other;
-  bool need_mark_download_as_viewed = is_dialog_history || source == MessageSource::HistoryPreview ||
-                                      source == MessageSource::Search || source == MessageSource::Other;
-  bool need_invalidate_authentication_code =
-      dialog_id == DialogId(UserManager::get_service_notifications_user_id()) && source == MessageSource::Screenshot;
-  auto dialog_type = dialog_id.get_type();
-  bool need_screenshot_notification = source == MessageSource::Screenshot &&
-                                      (dialog_type == DialogType::User || dialog_type == DialogType::SecretChat) &&
-                                      can_send_message(dialog_id).is_ok();
-
-  if (source == MessageSource::DialogList && dialog_type == DialogType::User) {
-    td_->story_manager_->on_view_dialog_active_stories({dialog_id});
-  }
-
-  // keep only valid message identifiers
-  size_t pos = 0;
-  for (auto message_id : message_ids) {
-    if (!message_id.is_valid()) {
-      if (message_id.is_valid_scheduled()) {
-        // nothing to do for scheduled messages
-        continue;
-      }
-      if (message_id.is_valid_sponsored()) {
-        if (is_dialog_history) {
-          td_->sponsored_message_manager_->view_sponsored_message(dialog_id, message_id);
-          continue;
-        } else if (source == MessageSource::HistoryPreview || source == MessageSource::Other) {
-          continue;
-        } else {
-          return Status::Error(400, "Can't view the message from the specified source");
-        }
-      }
-      return Status::Error(400, "Invalid message identifier");
-    }
-    message_ids[pos++] = message_id;
-  }
-  message_ids.resize(pos);
-  if (message_ids.empty()) {
-    // nothing to do
-    return Status::OK();
-  }
-
-  if (source == MessageSource::DialogEventLog) {
-    // nothing more to do
-    return Status::OK();
-  }
-
-  for (auto message_id : message_ids) {
-    auto *m = get_message_force(d, message_id, "view_messages 20");
-    if (m != nullptr) {
-      auto file_ids = get_message_file_ids(m);
-      for (auto file_id : file_ids) {
-        td_->file_manager_->check_local_location_async(file_id, true);
-      }
-    }
-  }
-
-  // get information about thread of the messages
-  MessageId top_thread_message_id;
-  if (source == MessageSource::MessageThreadHistory) {
-    if (dialog_type != DialogType::Channel || td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-      return Status::Error(400, "There are no message threads in the chat");
-    }
-
-    std::sort(message_ids.begin(), message_ids.end());
-
-    vector<MessageId> top_thread_message_ids;
-    vector<int64> media_album_ids;
-    for (auto message_id : message_ids) {
-      auto *m = get_message_force(d, message_id, "view_messages 1");
-      if (m != nullptr) {
-        top_thread_message_ids.push_back(m->top_thread_message_id);
-        media_album_ids.push_back(m->media_album_id);
-      }
-    }
-
-    if (!top_thread_message_ids.empty()) {
-      // first we expect a root album, then messages from the thread
-      // the root album can have all messages from their own threads,
-      // or all messages except the first one without thread for automatic forwards
-      size_t thread_start = 0;
-      if (media_album_ids[0] != 0) {
-        thread_start++;
-        while (thread_start < media_album_ids.size() && media_album_ids[thread_start] == media_album_ids[0]) {
-          thread_start++;
-        }
-      }
-      if (thread_start < media_album_ids.size()) {
-        top_thread_message_id = top_thread_message_ids[thread_start];
-        for (size_t i = thread_start; i < top_thread_message_ids.size(); i++) {
-          if (!top_thread_message_ids[i].is_valid()) {
-            return Status::Error(400, "Messages must be from a message thread");
-          }
-          if (top_thread_message_ids[i] != top_thread_message_id) {
-            return Status::Error(400, "All messages must be from the same message thread");
-          }
-        }
-        // do not check album messages to belong to the thread top_thread_message_id
-      } else {
-        // all messages are from the same album; thread of the first message is always the best guess
-        top_thread_message_id = top_thread_message_ids[0];
-      }
-    }
-  }
-
-  MessageId max_thread_message_id;
-  if (top_thread_message_id.is_valid()) {
-    const auto *top_m = get_message_force(d, top_thread_message_id, "view_messages 2");
-    if (top_m != nullptr && !top_m->reply_info.is_comment_) {
-      max_thread_message_id = top_m->reply_info.max_message_id_;
-    }
-  }
-
-  // get forum topic identifier for the messages
-  MessageId forum_topic_id;
-  if (source == MessageSource::ForumTopicHistory) {
-    if (!td_->dialog_manager_->is_forum_channel(dialog_id)) {
-      return Status::Error(400, "Chat has no topics");
-    }
-
-    for (auto message_id : message_ids) {
-      auto *m = get_message_force(d, message_id, "view_messages 3");
-      if (m != nullptr) {
-        auto message_forum_topic_id = m->is_topic_message ? m->top_thread_message_id : MessageId(ServerMessageId(1));
-        if (forum_topic_id.is_valid()) {
-          if (message_forum_topic_id != forum_topic_id) {
-            return Status::Error(400, "All messages must be from the same forum topic");
-          }
-        } else {
-          forum_topic_id = message_forum_topic_id;
-        }
-      }
-    }
-  }
-
-  MessageId max_message_id;  // max server or local viewed message_id
-  vector<MessageId> read_content_message_ids;
-  vector<MessageId> read_reaction_message_ids;
-  vector<MessageId> new_viewed_message_ids;
-  vector<MessageId> viewed_fact_check_message_ids;
-  vector<string> authentication_codes;
-  vector<MessageId> screenshotted_secret_message_ids;
-  for (auto message_id : message_ids) {
-    auto *m = get_message_force(d, message_id, "view_messages 4");
-    if (m != nullptr) {
-      if (m->message_id.is_server() && m->view_count > 0 && need_update_view_count) {
-        pending_message_views_[dialog_id].message_ids_.insert(m->message_id);
-      }
-
-      if (!m->message_id.is_yet_unsent() && m->message_id > max_message_id) {
-        max_message_id = m->message_id;
-      }
-
-      auto message_content_type = m->content->get_type();
-      if (message_content_type == MessageContentType::LiveLocation) {
-        on_message_live_location_viewed(d, m);
-      }
-
-      if (need_read && message_content_type != MessageContentType::VoiceNote &&
-          message_content_type != MessageContentType::VideoNote &&
-          update_message_contains_unread_mention(d, m, false, "view_messages 5")) {
-        CHECK(m->message_id.is_server());
-        read_content_message_ids.push_back(m->message_id);
-        on_message_changed(d, m, true, "view_messages 6");
-      }
-
-      if (need_read && remove_message_unread_reactions(d, m, "view_messages 7")) {
-        CHECK(m->message_id.is_server());
-        read_reaction_message_ids.push_back(m->message_id);
-        on_message_changed(d, m, true, "view_messages 8");
-      }
-
-      auto file_source_id = message_full_id_to_file_source_id_.get({dialog_id, m->message_id});
-      if (file_source_id.is_valid() && need_mark_download_as_viewed) {
-        LOG(INFO) << "Have " << file_source_id << " for " << m->message_id;
-        CHECK(file_source_id.is_valid());
-        for (auto file_id : get_message_file_ids(m)) {
-          auto file_view = td_->file_manager_->get_file_view(file_id);
-          CHECK(!file_view.empty());
-          send_closure(td_->download_manager_actor_, &DownloadManager::update_file_viewed, file_view.get_main_file_id(),
-                       file_source_id);
-        }
-      }
-
-      auto story_full_id = get_message_content_story_full_id(td_, m->content.get());
-      if (story_full_id.is_valid()) {
-        td_->story_manager_->view_story_message(story_full_id);
-      }
-
-      if (m->message_id.is_server() && d->open_count > 0) {
-        auto &info = dialog_viewed_messages_[dialog_id];
-        if (info == nullptr) {
-          info = make_unique<ViewedMessagesInfo>();
-        }
-        auto &view_id = info->message_id_to_view_id[message_id];
-        if (view_id == 0) {
-          new_viewed_message_ids.push_back(message_id);
-        } else {
-          info->recently_viewed_messages.erase(view_id);
-        }
-        view_id = ++info->current_view_id;
-        info->recently_viewed_messages[view_id] = message_id;
-      }
-
-      if (m->message_id.is_server() && m->fact_check != nullptr && m->fact_check->need_check()) {
-        CHECK(message_id.is_server());
-        viewed_fact_check_message_ids.push_back(message_id);
-      }
-
-      if (need_invalidate_authentication_code) {
-        extract_authentication_codes(dialog_id, m, authentication_codes);
-      }
-      if (need_screenshot_notification && !m->is_outgoing) {
-        if ((dialog_type == DialogType::User && m->is_content_secret) || dialog_type == DialogType::SecretChat) {
-          screenshotted_secret_message_ids.push_back(m->message_id);
-        }
-      }
-    } else if (!message_id.is_yet_unsent() && message_id > max_message_id) {
-      if ((d->notification_info != nullptr && message_id <= d->notification_info->max_push_notification_message_id_) ||
-          message_id <= d->last_new_message_id || message_id <= max_thread_message_id) {
-        max_message_id = message_id;
-      }
-    }
-  }
-  if (pending_message_views_.count(dialog_id) != 0) {
-    pending_message_views_timeout_.add_timeout_in(dialog_id.get(), MAX_MESSAGE_VIEW_DELAY);
-    if (is_dialog_history) {
-      pending_message_views_[dialog_id].increment_view_counter_ = true;
-    }
-  }
-  if (!read_content_message_ids.empty()) {
-    td_->message_query_manager_->read_message_contents_on_server(dialog_id, std::move(read_content_message_ids), 0,
-                                                                 Auto());
-  }
-  if (!read_reaction_message_ids.empty()) {
-    td_->message_query_manager_->read_message_reactions_on_server(dialog_id, std::move(read_reaction_message_ids));
-  }
-  if (!new_viewed_message_ids.empty()) {
-    LOG(INFO) << "Have new viewed " << new_viewed_message_ids;
-    auto &info = dialog_viewed_messages_[dialog_id];
-    CHECK(info != nullptr);
-    CHECK(info->message_id_to_view_id.size() == info->recently_viewed_messages.size());
-    constexpr size_t MAX_RECENTLY_VIEWED_MESSAGES = 25;
-    while (info->recently_viewed_messages.size() > MAX_RECENTLY_VIEWED_MESSAGES) {
-      auto it = info->recently_viewed_messages.begin();
-      info->message_id_to_view_id.erase(it->second);
-      info->recently_viewed_messages.erase(it);
-    }
-    process_viewed_message(d, new_viewed_message_ids, true);
-  }
-  if (!viewed_fact_check_message_ids.empty()) {
-    td_->message_query_manager_->reload_message_fact_checks(dialog_id, std::move(viewed_fact_check_message_ids));
-  }
-  if (td_->online_manager_->is_online() && dialog_viewed_messages_.count(dialog_id) != 0) {
-    update_viewed_messages_timeout_.add_timeout_in(dialog_id.get(), UPDATE_VIEWED_MESSAGES_PERIOD);
-  }
-  if (!authentication_codes.empty()) {
-    td_->account_manager_->invalidate_authentication_codes(std::move(authentication_codes));
-  }
-  if (!screenshotted_secret_message_ids.empty()) {
-    send_screenshot_taken_notification_message(d);
-  }
-
-  if (!need_read) {
-    return Status::OK();
-  }
-
-  if (source == MessageSource::MessageThreadHistory) {
-    if (!top_thread_message_id.is_valid() || !max_message_id.is_valid()) {
-      return Status::OK();
-    }
-    MessageId prev_last_read_inbox_message_id;
-    max_thread_message_id = MessageId();
-    Message *top_m = get_message_force(d, top_thread_message_id, "view_messages 9");
-    if (top_m != nullptr && is_active_message_reply_info(dialog_id, top_m->reply_info)) {
-      prev_last_read_inbox_message_id = top_m->reply_info.last_read_inbox_message_id_;
-      if (top_m->reply_info.update_max_message_ids(MessageId(), max_message_id, MessageId())) {
-        on_message_reply_info_changed(dialog_id, top_m);
-        on_message_changed(d, top_m, true, "view_messages 10");
-      }
-      max_thread_message_id = top_m->reply_info.max_message_id_;
-
-      if (is_discussion_message(dialog_id, top_m)) {
-        auto linked_message_full_id = top_m->forward_info->get_last_message_full_id();
-        auto linked_dialog_id = linked_message_full_id.get_dialog_id();
-        auto linked_d = get_dialog(linked_dialog_id);
-        CHECK(linked_d != nullptr);
-        CHECK(linked_dialog_id.get_type() == DialogType::Channel);
-        auto *linked_m = get_message_force(linked_d, linked_message_full_id.get_message_id(), "view_messages 11");
-        if (linked_m != nullptr && is_active_message_reply_info(linked_dialog_id, linked_m->reply_info)) {
-          if (linked_m->reply_info.last_read_inbox_message_id_ < prev_last_read_inbox_message_id) {
-            prev_last_read_inbox_message_id = linked_m->reply_info.last_read_inbox_message_id_;
-          }
-          if (linked_m->reply_info.update_max_message_ids(MessageId(), max_message_id, MessageId())) {
-            on_message_reply_info_changed(linked_dialog_id, linked_m);
-            on_message_changed(linked_d, linked_m, true, "view_messages 12");
-          }
-          if (linked_m->reply_info.max_message_id_ > max_thread_message_id) {
-            max_thread_message_id = linked_m->reply_info.max_message_id_;
-          }
-        }
-      }
-    }
-
-    if (max_message_id.get_prev_server_message_id().get() >
-        prev_last_read_inbox_message_id.get_prev_server_message_id().get()) {
-      read_message_thread_history_on_server(d, top_thread_message_id, max_message_id.get_prev_server_message_id(),
-                                            max_thread_message_id.get_prev_server_message_id());
-    }
-
-    return Status::OK();
-  }
-  if (source == MessageSource::ForumTopicHistory) {
-    if (!forum_topic_id.is_valid() || !max_message_id.is_valid()) {
-      return Status::OK();
-    }
-
-    td_->forum_topic_manager_->read_forum_topic_messages(dialog_id, forum_topic_id, max_message_id);
-    return Status::OK();
-  }
-
-  CHECK(source == MessageSource::DialogHistory || force_read);
-  read_dialog_inbox(d, max_message_id);
-  if (d->is_marked_as_unread) {
-    set_dialog_is_marked_as_unread(d, false);
-  }
-  return Status::OK();
-}
-
-void MessagesManager::read_dialog_inbox(Dialog *d, MessageId max_message_id) {
-  if (max_message_id == MessageId()) {
-    return;
-  }
-  CHECK(d != nullptr);
-  CHECK(max_message_id.is_valid());
-  CHECK(max_message_id.is_server() || max_message_id.is_local());
-  if (max_message_id <= d->last_read_inbox_message_id) {
-    return;
-  }
-
-  const MessageId last_read_message_id = max_message_id;
-  const MessageId prev_last_read_inbox_message_id = d->last_read_inbox_message_id;
-  MessageId read_history_on_server_message_id;
-  if (d->dialog_id.get_type() != DialogType::SecretChat) {
-    if (last_read_message_id.get_prev_server_message_id().get() >
-        prev_last_read_inbox_message_id.get_prev_server_message_id().get()) {
-      read_history_on_server_message_id = last_read_message_id.get_prev_server_message_id();
-    }
-  } else {
-    if (last_read_message_id > prev_last_read_inbox_message_id) {
-      read_history_on_server_message_id = last_read_message_id;
-    }
-  }
-
-  if (read_history_on_server_message_id.is_valid()) {
-    // add dummy timeout to not try to repair unread_count in read_history_inbox before server request succeeds
-    // the timeout will be overwritten in the read_history_on_server call
-    pending_read_history_timeout_.add_timeout_in(d->dialog_id.get(), 0);
-  }
-  read_history_inbox(d, last_read_message_id, -1, "read_dialog_inbox");
-  if (read_history_on_server_message_id.is_valid()) {
-    // call read_history_on_server after read_history_inbox to not have delay before request if all messages are read
-    read_history_on_server(d, read_history_on_server_message_id);
-  }
-}
-
-Status MessagesManager::open_message_content(MessageFullId message_full_id) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "open_message_content"));
-  auto *m = get_message_force(d, message_full_id.get_message_id(), "open_message_content");
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-
-  if (m->message_id.is_scheduled() || m->message_id.is_yet_unsent() || m->is_outgoing) {
-    return Status::OK();
-  }
-
-  if (read_message_content(d, m, true, 0, "open_message_content") &&
-      (m->message_id.is_server() || dialog_id.get_type() == DialogType::SecretChat)) {
-    td_->message_query_manager_->read_message_contents_on_server(dialog_id, {m->message_id}, 0, Auto());
-  }
-
-  if (m->content->get_type() == MessageContentType::LiveLocation) {
-    on_message_live_location_viewed(d, m);
-  }
-
-  auto file_ids = get_message_file_ids(m);
-  for (auto file_id : file_ids) {
-    td_->file_manager_->check_local_location_async(file_id, true);
-  }
-
-  return Status::OK();
-}
-
-void MessagesManager::click_animated_emoji_message(MessageFullId message_full_id,
-                                                   Promise<td_api::object_ptr<td_api::sticker>> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Read, "click_animated_emoji_message"));
-
-  auto message_id = get_persistent_message_id(d, message_full_id.get_message_id());
-  auto *m = get_message_force(d, message_id, "click_animated_emoji_message");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  if (m->message_id.is_scheduled() || dialog_id.get_type() != DialogType::User || !m->message_id.is_server()) {
-    return promise.set_value(nullptr);
-  }
-
-  get_message_content_animated_emoji_click_sticker(m->content.get(), message_full_id, td_, std::move(promise));
-}
-
-void MessagesManager::open_dialog(Dialog *d) {
-  CHECK(!td_->auth_manager_->is_bot());
-  DialogId dialog_id = d->dialog_id;
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    return;
-  }
-  td_->dialog_manager_->on_dialog_opened(dialog_id);
-  if (d->open_count == std::numeric_limits<uint32>::max()) {
-    return;
-  }
-  d->open_count++;
-  if (d->open_count != 1) {
-    return;
-  }
-  d->was_opened = true;
-
-  auto min_message_id = MessageId(ServerMessageId(1));
-  if (d->last_message_id == MessageId() && d->last_read_outbox_message_id < min_message_id) {
-    auto it = d->ordered_messages.get_const_iterator(MessageId::max());
-    if (*it != nullptr && (*it)->get_message_id() < min_message_id) {
-      read_history_inbox(d, (*it)->get_message_id(), -1, "open_dialog");
-    }
-  }
-
-  if (d->has_unload_timeout) {
-    LOG(INFO) << "Cancel unload timeout for " << dialog_id;
-    pending_unload_dialog_timeout_.cancel_timeout(dialog_id.get());
-    d->has_unload_timeout = false;
-  }
-
-  if (d->notification_info != nullptr && d->notification_info->new_secret_chat_notification_id_.is_valid()) {
-    remove_new_secret_chat_notification(d, true);
-  }
-
-  get_dialog_pinned_message(dialog_id, Auto());
-
-  if (d->active_group_call_id.is_valid()) {
-    td_->group_call_manager_->reload_group_call(d->active_group_call_id, Auto());
-  }
-  if (d->need_drop_default_send_message_as_dialog_id) {
-    CHECK(d->default_send_message_as_dialog_id.is_valid());
-    d->need_drop_default_send_message_as_dialog_id = false;
-    d->default_send_message_as_dialog_id = DialogId();
-    LOG(INFO) << "Set message sender in " << d->dialog_id << " to " << d->default_send_message_as_dialog_id;
-    on_dialog_updated(dialog_id, "open_dialog");
-    send_update_chat_message_sender(d);
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      td_->story_manager_->on_view_dialog_active_stories({dialog_id});
-      break;
-    case DialogType::Chat:
-      td_->chat_manager_->repair_chat_participants(dialog_id.get_chat_id());
-      reget_dialog_action_bar(dialog_id, "open_dialog", false);
-      break;
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      if (!td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-        auto participant_count = td_->chat_manager_->get_channel_participant_count(channel_id);
-        auto has_hidden_participants = td_->chat_manager_->get_channel_effective_has_hidden_participants(
-            dialog_id.get_channel_id(), "open_dialog");
-        if (participant_count < 195 && !has_hidden_participants) {  // include unknown participant_count
-          td_->dialog_participant_manager_->get_channel_participants(
-              channel_id, td_api::make_object<td_api::supergroupMembersFilterRecent>(), string(), 0, 200, 200, Auto());
-        }
-      } else {
-        td_->story_manager_->on_view_dialog_active_stories({dialog_id});
-      }
-      get_channel_difference(dialog_id, d->pts, 0, MessageId(), true, "open_dialog");
-      reget_dialog_action_bar(dialog_id, "open_dialog", false);
-
-      if (td_->chat_manager_->get_channel_has_linked_channel(channel_id)) {
-        auto linked_channel_id = td_->chat_manager_->get_channel_linked_channel_id(channel_id, "open_dialog");
-        if (!linked_channel_id.is_valid()) {
-          // load linked_channel_id
-          send_closure_later(G()->chat_manager(), &ChatManager::load_channel_full, channel_id, false, Promise<Unit>(),
-                             "open_dialog");
-        } else {
-          td_->dialog_manager_->get_dialog_info_full(DialogId(linked_channel_id), Auto(), "open_dialog");
-        }
-      }
-      break;
-    }
-    case DialogType::SecretChat: {
-      // to repair dialog action bar
-      auto user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      if (user_id.is_valid()) {
-        td_->user_manager_->reload_user_full(user_id, Promise<Unit>(), "open_dialog");
-      }
-      break;
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    td_->dialog_participant_manager_->on_dialog_opened(dialog_id);
-
-    if (d->has_scheduled_database_messages && !d->is_has_scheduled_database_messages_checked) {
-      CHECK(G()->use_message_database());
-
-      LOG(INFO) << "Send check has_scheduled_database_messages request";
-      d->is_has_scheduled_database_messages_checked = true;
-      G()->td_db()->get_message_db_async()->get_scheduled_messages(
-          dialog_id, 1,
-          PromiseCreator::lambda([actor_id = actor_id(this), dialog_id](vector<MessageDbDialogMessage> messages) {
-            if (messages.empty()) {
-              send_closure(actor_id, &MessagesManager::set_dialog_has_scheduled_database_messages, dialog_id, false);
-            }
-          }));
-    }
-  }
-}
-
-void MessagesManager::close_dialog(Dialog *d) {
-  if (d->open_count == 0) {
-    return;
-  }
-  d->open_count--;
-  if (d->open_count > 0) {
-    return;
-  }
-
-  auto dialog_id = d->dialog_id;
-  if (td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Write)) {
-    if (pending_draft_message_timeout_.has_timeout(dialog_id.get())) {
-      pending_draft_message_timeout_.set_timeout_in(dialog_id.get(), 0.0);
-    }
-  } else {
-    pending_draft_message_timeout_.cancel_timeout(dialog_id.get());
-  }
-
-  if (td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    if (pending_message_views_timeout_.has_timeout(dialog_id.get())) {
-      pending_message_views_timeout_.set_timeout_in(dialog_id.get(), 0.0);
-    }
-    if (pending_read_history_timeout_.has_timeout(dialog_id.get())) {
-      pending_read_history_timeout_.set_timeout_in(dialog_id.get(), 0.0);
-    }
-  } else {
-    pending_message_views_timeout_.cancel_timeout(dialog_id.get());
-    pending_message_views_.erase(dialog_id);
-    pending_read_history_timeout_.cancel_timeout(dialog_id.get());
-  }
-
-  if (is_message_unload_enabled()) {
-    CHECK(!d->has_unload_timeout);
-    pending_unload_dialog_timeout_.set_timeout_in(dialog_id.get(), get_next_unload_dialog_delay(d));
-    d->has_unload_timeout = true;
-
-    if (d->need_unload_on_close) {
-      unload_dialog(dialog_id, 0);
-      d->need_unload_on_close = false;
-    }
-  }
-
-  dialog_viewed_messages_.erase(dialog_id);
-  update_viewed_messages_timeout_.cancel_timeout(dialog_id.get());
-
-  auto live_locations_it = pending_viewed_live_locations_.find(dialog_id);
-  if (live_locations_it != pending_viewed_live_locations_.end()) {
-    for (auto &it : live_locations_it->second) {
-      auto live_location_task_id = it.second;
-      auto erased_count = viewed_live_location_tasks_.erase(live_location_task_id);
-      CHECK(erased_count > 0);
-    }
-    pending_viewed_live_locations_.erase(live_locations_it);
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      break;
-    case DialogType::Chat:
-      break;
-    case DialogType::Channel:
-      channel_get_difference_timeout_.cancel_timeout(dialog_id.get());
-      break;
-    case DialogType::SecretChat:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    if (postponed_chat_read_inbox_updates_.erase(dialog_id) > 0) {
-      send_update_chat_read_inbox(d, false, "close_dialog 2");
-    }
-
-    td_->dialog_participant_manager_->on_dialog_closed(dialog_id);
-  }
-}
-
-int64 MessagesManager::get_chat_id_object(DialogId dialog_id, const char *source) const {
-  const Dialog *d = get_dialog(dialog_id);
-  if (d == nullptr) {
-    if (dialog_id != DialogId()) {
-      LOG(ERROR) << "Can't find " << dialog_id << ", needed from " << source;
-    }
-  } else if (!d->is_update_new_chat_sent && !d->is_update_new_chat_being_sent) {
-    LOG(ERROR) << "Didn't send updateNewChat for " << dialog_id << ", needed from " << source;
-  }
-  return dialog_id.get();
-}
-
-td_api::object_ptr<td_api::ChatActionBar> MessagesManager::get_chat_action_bar_object(const Dialog *d) const {
-  CHECK(d != nullptr);
-  auto dialog_type = d->dialog_id.get_type();
-  if (dialog_type == DialogType::SecretChat) {
-    auto user_id = td_->user_manager_->get_secret_chat_user_id(d->dialog_id.get_secret_chat_id());
-    if (!user_id.is_valid()) {
-      return nullptr;
-    }
-    const Dialog *user_d = get_dialog(DialogId(user_id));
-    if (user_d == nullptr || user_d->action_bar == nullptr) {
-      return nullptr;
-    }
-    return user_d->action_bar->get_chat_action_bar_object(DialogType::User, d->folder_id != FolderId::archive());
-  }
-
-  if (d->action_bar == nullptr) {
-    return nullptr;
-  }
-  return d->action_bar->get_chat_action_bar_object(dialog_type, false);
-}
-
-td_api::object_ptr<td_api::businessBotManageBar> MessagesManager::get_business_bot_manage_bar_object(
-    const Dialog *d) const {
-  CHECK(d != nullptr);
-  if (d->business_bot_manage_bar == nullptr) {
-    return nullptr;
-  }
-  return d->business_bot_manage_bar->get_business_bot_manage_bar_object(td_);
-}
-
-td_api::object_ptr<td_api::chatBackground> MessagesManager::get_chat_background_object(const Dialog *d) const {
-  CHECK(d != nullptr);
-  if (d->dialog_id.get_type() == DialogType::SecretChat) {
-    auto user_id = td_->user_manager_->get_secret_chat_user_id(d->dialog_id.get_secret_chat_id());
-    if (!user_id.is_valid()) {
-      return nullptr;
-    }
-    d = get_dialog(DialogId(user_id));
-    if (d == nullptr) {
-      return nullptr;
-    }
-  }
-  return d->background_info.get_chat_background_object(td_);
-}
-
-string MessagesManager::get_dialog_theme_name(const Dialog *d) const {
-  CHECK(d != nullptr);
-  if (d->dialog_id.get_type() == DialogType::SecretChat) {
-    auto user_id = td_->user_manager_->get_secret_chat_user_id(d->dialog_id.get_secret_chat_id());
-    if (!user_id.is_valid()) {
-      return string();
-    }
-    d = get_dialog(DialogId(user_id));
-    if (d == nullptr) {
-      return string();
-    }
-  }
-  return d->theme_name;
-}
-
-td_api::object_ptr<td_api::chatJoinRequestsInfo> MessagesManager::get_chat_join_requests_info_object(
-    const Dialog *d) const {
-  if (d->pending_join_request_count == 0) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::chatJoinRequestsInfo>(
-      d->pending_join_request_count,
-      td_->user_manager_->get_user_ids_object(d->pending_join_request_user_ids, "get_chat_join_requests_info_object"));
-}
-
-td_api::object_ptr<td_api::videoChat> MessagesManager::get_video_chat_object(const Dialog *d) const {
-  auto active_group_call_id = td_->group_call_manager_->get_group_call_id(d->active_group_call_id, d->dialog_id);
-  auto default_participant_alias =
-      d->default_join_group_call_as_dialog_id.is_valid()
-          ? get_message_sender_object_const(td_, d->default_join_group_call_as_dialog_id, "get_video_chat_object")
-          : nullptr;
-  return make_tl_object<td_api::videoChat>(active_group_call_id.get(),
-                                           active_group_call_id.is_valid() ? !d->is_group_call_empty : false,
-                                           std::move(default_participant_alias));
-}
-
-td_api::object_ptr<td_api::MessageSender> MessagesManager::get_default_message_sender_object(const Dialog *d) const {
-  auto as_dialog_id = d->default_send_message_as_dialog_id;
-  return as_dialog_id.is_valid()
-             ? get_message_sender_object_const(td_, as_dialog_id, "get_default_message_sender_object")
-             : nullptr;
-}
-
-td_api::object_ptr<td_api::chat> MessagesManager::get_chat_object(const Dialog *d, const char *source) const {
-  CHECK(d != nullptr);
-
-  bool is_premium = td_->option_manager_->get_option_boolean("is_premium");
-  auto chat_source = is_dialog_sponsored(d) ? sponsored_dialog_source_.get_chat_source_object() : nullptr;
-  auto can_delete = can_delete_dialog(d);
-  auto draft_message = !need_hide_dialog_draft_message(d) ? get_draft_message_object(td_, d->draft_message) : nullptr;
-  auto available_reactions = get_dialog_active_reactions(d).get_chat_available_reactions_object(td_);
-  auto is_translatable = d->is_translatable && is_premium;
-  auto block_list_id = BlockListId(d->is_blocked, d->is_blocked_for_stories);
-  auto chat_lists = transform(get_dialog_list_ids(d),
-                              [](DialogListId dialog_list_id) { return dialog_list_id.get_chat_list_object(); });
-  return make_tl_object<td_api::chat>(
-      d->dialog_id.get(), td_->dialog_manager_->get_chat_type_object(d->dialog_id, source),
-      td_->dialog_manager_->get_dialog_title(d->dialog_id),
-      get_chat_photo_info_object(td_->file_manager_.get(), td_->dialog_manager_->get_dialog_photo(d->dialog_id)),
-      td_->dialog_manager_->get_dialog_accent_color_id_object(d->dialog_id),
-      td_->dialog_manager_->get_dialog_background_custom_emoji_id(d->dialog_id).get(),
-      td_->dialog_manager_->get_dialog_profile_accent_color_id_object(d->dialog_id),
-      td_->dialog_manager_->get_dialog_profile_background_custom_emoji_id(d->dialog_id).get(),
-      td_->dialog_manager_->get_dialog_default_permissions(d->dialog_id).get_chat_permissions_object(),
-      get_message_object(d, d->last_message_id, source), get_chat_positions_object(d), std::move(chat_lists),
-      get_default_message_sender_object(d), block_list_id.get_block_list_object(),
-      td_->dialog_manager_->get_dialog_has_protected_content(d->dialog_id), is_translatable, d->is_marked_as_unread,
-      get_dialog_view_as_topics(d), get_dialog_has_scheduled_messages(d), can_delete.for_self_,
-      can_delete.for_all_users_, td_->dialog_manager_->can_report_dialog(d->dialog_id),
-      d->notification_settings.silent_send_message, d->server_unread_count + d->local_unread_count,
-      d->last_read_inbox_message_id.get(), d->last_read_outbox_message_id.get(), d->unread_mention_count,
-      d->unread_reaction_count, get_chat_notification_settings_object(&d->notification_settings),
-      std::move(available_reactions), d->message_ttl.get_message_auto_delete_time_object(),
-      td_->dialog_manager_->get_dialog_emoji_status_object(d->dialog_id), get_chat_background_object(d),
-      get_dialog_theme_name(d), get_chat_action_bar_object(d), get_business_bot_manage_bar_object(d),
-      get_video_chat_object(d), get_chat_join_requests_info_object(d), d->reply_markup_message_id.get(),
-      std::move(draft_message), d->client_data);
-}
-
-td_api::object_ptr<td_api::chat> MessagesManager::get_chat_object(DialogId dialog_id, const char *source) {
-  const Dialog *d = get_dialog(dialog_id);
-  if (postponed_chat_read_inbox_updates_.erase(dialog_id) > 0) {
-    send_update_chat_read_inbox(d, true, source);
-  }
-  return get_chat_object(d, source);
-}
-
-td_api::object_ptr<td_api::draftMessage> MessagesManager::get_my_dialog_draft_message_object() const {
-  const Dialog *d = get_dialog(td_->dialog_manager_->get_my_dialog_id());
-  if (d == nullptr) {
-    return nullptr;
-  }
-  return get_draft_message_object(td_, d->draft_message);
-}
-
-std::pair<bool, int32> MessagesManager::get_dialog_mute_until(DialogId dialog_id, const Dialog *d) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (d == nullptr || !d->notification_settings.is_synchronized) {
-    auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(dialog_id);
-    return {false, td_->notification_settings_manager_->get_scope_mute_until(scope)};
-  }
-
-  return {d->notification_settings.is_use_default_fixed, get_dialog_mute_until(d)};
-}
-
-int64 MessagesManager::get_dialog_notification_ringtone_id(DialogId dialog_id, const Dialog *d) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (d == nullptr || !d->notification_settings.is_synchronized ||
-      is_notification_sound_default(d->notification_settings.sound)) {
-    auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(dialog_id);
-    return get_notification_sound_ringtone_id(td_->notification_settings_manager_->get_scope_notification_sound(scope));
-  }
-
-  return get_notification_sound_ringtone_id(d->notification_settings.sound);
-}
-
-StoryNotificationSettings MessagesManager::get_story_notification_settings(DialogId dialog_id) {
-  bool need_dialog_settings = false;
-  bool need_top_dialogs = false;
-  bool are_muted = false;
-  bool hide_sender = false;
-  int64 ringtone_id = 0;
-
-  const Dialog *d = get_dialog_force(dialog_id, "get_story_notification_settings");
-  if (d == nullptr || !d->notification_settings.is_synchronized) {
-    need_dialog_settings = true;
-  }
-  auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(dialog_id);
-  if (need_dialog_settings || d->notification_settings.use_default_mute_stories) {
-    bool use_default;
-    std::tie(use_default, are_muted) = td_->notification_settings_manager_->get_scope_mute_stories(scope);
-    if (use_default) {
-      auto is_top_dialog = td_->top_dialog_manager_->is_top_dialog(TopDialogCategory::Correspondent, 5, dialog_id);
-      if (is_top_dialog == -1) {
-        need_top_dialogs = true;
-      } else {
-        are_muted = is_top_dialog != 0;
-      }
-    }
-  } else {
-    are_muted = d->notification_settings.mute_stories;
-  }
-  if (need_dialog_settings || d->notification_settings.use_default_hide_story_sender) {
-    hide_sender = td_->notification_settings_manager_->get_scope_hide_story_sender(scope);
-  } else {
-    hide_sender = d->notification_settings.hide_story_sender;
-  }
-  if (need_dialog_settings || is_notification_sound_default(d->notification_settings.story_sound)) {
-    ringtone_id = get_notification_sound_ringtone_id(
-        td_->notification_settings_manager_->get_scope_story_notification_sound(scope));
-  } else {
-    ringtone_id = get_notification_sound_ringtone_id(d->notification_settings.story_sound);
-  }
-
-  return {need_dialog_settings, need_top_dialogs, are_muted, hide_sender, ringtone_id};
-}
-
-vector<DialogId> MessagesManager::get_dialog_notification_settings_exceptions(NotificationSettingsScope scope,
-                                                                              bool filter_scope, bool compare_sound,
-                                                                              bool force, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  bool have_all_dialogs = true;
-  for (const auto &list : dialog_folders_) {
-    if (list.second.folder_last_dialog_date_ != MAX_DIALOG_DATE) {
-      have_all_dialogs = false;
-    }
-  }
-
-  if (have_all_dialogs || force) {
-    vector<DialogDate> ordered_dialogs;
-    auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-    for (const auto &list : dialog_folders_) {
-      for (const auto &dialog_date : list.second.ordered_dialogs_) {
-        auto dialog_id = dialog_date.get_dialog_id();
-        if (filter_scope && td_->dialog_manager_->get_dialog_notification_setting_scope(dialog_id) != scope) {
-          continue;
-        }
-        if (dialog_id == my_dialog_id) {
-          continue;
-        }
-
-        const Dialog *d = get_dialog(dialog_id);
-        CHECK(d != nullptr);
-        LOG_CHECK(d->folder_id == list.first)
-            << list.first << ' ' << dialog_id << ' ' << d->folder_id << ' ' << d->order;
-        if (d->order == DEFAULT_ORDER) {
-          break;
-        }
-        if (are_default_dialog_notification_settings(d->notification_settings, compare_sound)) {
-          continue;
-        }
-        if (is_dialog_message_notification_disabled(dialog_id, std::numeric_limits<int32>::max())) {
-          continue;
-        }
-        ordered_dialogs.push_back(DialogDate(get_dialog_base_order(d), dialog_id));
-      }
-    }
-    std::sort(ordered_dialogs.begin(), ordered_dialogs.end());
-
-    vector<DialogId> result;
-    for (auto &dialog_date : ordered_dialogs) {
-      CHECK(result.empty() || result.back() != dialog_date.get_dialog_id());
-      result.push_back(dialog_date.get_dialog_id());
-    }
-    promise.set_value(Unit());
-    return result;
-  }
-
-  for (const auto &folder : dialog_folders_) {
-    load_folder_dialog_list(folder.first, MAX_GET_DIALOGS, true);
-  }
-
-  td_->notification_settings_manager_->get_notify_settings_exceptions(scope, filter_scope, compare_sound,
-                                                                      std::move(promise));
-  return {};
-}
-
-DialogNotificationSettings *MessagesManager::get_dialog_notification_settings(DialogId dialog_id, bool force) {
-  Dialog *d = get_dialog_force(dialog_id, "get_dialog_notification_settings");
-  if (d == nullptr) {
-    return nullptr;
-  }
-  if (!force && !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    return nullptr;
-  }
-  return &d->notification_settings;
-}
-
-Status MessagesManager::set_dialog_notification_settings(
-    DialogId dialog_id, tl_object_ptr<td_api::chatNotificationSettings> &&notification_settings) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto current_settings = get_dialog_notification_settings(dialog_id, false);
-  if (current_settings == nullptr) {
-    return Status::Error(400, "Wrong chat identifier specified");
-  }
-  if (dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    return Status::Error(400, "Notification settings of the Saved Messages chat can't be changed");
-  }
-
-  TRY_RESULT(new_settings, ::td::get_dialog_notification_settings(std::move(notification_settings), current_settings));
-  if (update_dialog_notification_settings(dialog_id, current_settings, std::move(new_settings))) {
-    update_dialog_notification_settings_on_server(dialog_id, false);
-  }
-  return Status::OK();
-}
-
-void MessagesManager::reset_all_dialog_notification_settings() {
-  dialogs_.foreach([&](const DialogId &dialog_id, unique_ptr<Dialog> &dialog) {
-    DialogNotificationSettings new_dialog_settings;
-    new_dialog_settings.is_synchronized = true;
-    Dialog *d = dialog.get();
-    update_dialog_notification_settings(dialog_id, &d->notification_settings, std::move(new_dialog_settings));
-  });
-}
-
-tl_object_ptr<td_api::messages> MessagesManager::get_dialog_history(DialogId dialog_id, MessageId from_message_id,
-                                                                    int32 offset, int32 limit, int left_tries,
-                                                                    bool only_local, Promise<Unit> &&promise) {
-  if (limit <= 0) {
-    promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-    return nullptr;
-  }
-  if (limit > MAX_GET_HISTORY) {
-    limit = MAX_GET_HISTORY;
-  }
-  if (offset > 0) {
-    promise.set_error(Status::Error(400, "Parameter offset must be non-positive"));
-    return nullptr;
-  }
-  if (offset <= -MAX_GET_HISTORY) {
-    promise.set_error(Status::Error(400, "Parameter offset must be greater than -100"));
-    return nullptr;
-  }
-  if (offset < -limit) {
-    promise.set_error(Status::Error(400, "Parameter offset must be greater than or equal to -limit"));
-    return nullptr;
-  }
-
-  const Dialog *d = get_dialog_force(dialog_id, "get_dialog_history");
-  if (d == nullptr) {
-    promise.set_error(Status::Error(400, "Chat not found"));
-    return nullptr;
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return nullptr;
-  }
-
-  if (from_message_id == MessageId() || from_message_id.get() > MessageId::max().get()) {
-    from_message_id = MessageId::max();
-  }
-  if (!from_message_id.is_valid()) {
-    promise.set_error(Status::Error(400, "Invalid value of parameter from_message_id specified"));
-    return nullptr;
-  }
-
-  LOG(INFO) << "Get " << (only_local ? "local " : "") << "history in " << dialog_id << " from " << from_message_id
-            << " with offset " << offset << " and limit " << limit << ", " << left_tries
-            << " tries left, is_empty = " << d->is_empty << ", have_full_history = " << d->have_full_history
-            << ", have_full_history_source = " << d->have_full_history_source;
-
-  auto message_ids = d->ordered_messages.get_history(d->last_message_id, from_message_id, offset, limit,
-                                                     left_tries == 0 && !only_local);
-  if (!message_ids.empty()) {
-    // maybe need some messages
-    CHECK(offset == 0);
-    preload_newer_messages(d, message_ids[0]);
-    preload_older_messages(d, message_ids.back());
-  } else if (limit > 0 && left_tries != 0 && !(d->is_empty && d->have_full_history && left_tries < 3)) {
-    // there can be more messages in the database or on the server, need to load them
-    send_closure_later(actor_id(this), &MessagesManager::load_messages, dialog_id, from_message_id, offset, limit,
-                       left_tries, only_local, std::move(promise));
-    return nullptr;
-  }
-
-  LOG(INFO) << "Return " << message_ids << " in result to getChatHistory";
-  promise.set_value(Unit());  // can return some messages
-  return get_messages_object(-1, dialog_id, message_ids, true,
-                             "get_dialog_history");  // TODO return real total_count of messages in the dialog
-}
-
-class MessagesManager::ReadHistoryOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  MessageId max_message_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(max_message_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-    td::parse(max_message_id_, parser);
-  }
-};
-
-class MessagesManager::ReadHistoryInSecretChatLogEvent {
- public:
-  DialogId dialog_id_;
-  int32 max_date_ = 0;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(max_date_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-    td::parse(max_date_, parser);
-  }
-};
-
-class MessagesManager::ReadMessageThreadHistoryOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  MessageId top_thread_message_id_;
-  MessageId max_message_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(top_thread_message_id_, storer);
-    td::store(max_message_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-    td::parse(top_thread_message_id_, parser);
-    td::parse(max_message_id_, parser);
-  }
-};
-
-void MessagesManager::read_history_on_server(Dialog *d, MessageId max_message_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  CHECK(!max_message_id.is_scheduled());
-
-  auto dialog_id = d->dialog_id;
-  bool is_secret = dialog_id.get_type() == DialogType::SecretChat;
-  bool need_delay = d->open_count > 0 && !is_secret &&
-                    (d->server_unread_count > 0 || (!need_unread_counter(d->order) && d->last_message_id.is_valid() &&
-                                                    max_message_id < d->last_message_id));
-  LOG(INFO) << "Read history in " << dialog_id << " on server up to " << max_message_id << " with"
-            << (need_delay ? "" : "out") << " delay";
-
-  if (is_secret) {
-    auto *m = get_message_force(d, max_message_id, "read_history_on_server");
-    if (m == nullptr) {
-      LOG(ERROR) << "Failed to read history in " << dialog_id << " up to " << max_message_id;
-      return;
-    }
-
-    ReadHistoryInSecretChatLogEvent log_event;
-    log_event.dialog_id_ = dialog_id;
-    log_event.max_date_ = m->date;
-    add_log_event(read_history_log_event_ids_[dialog_id][0], get_log_event_storer(log_event),
-                  LogEvent::HandlerType::ReadHistoryInSecretChat, "read history");
-
-    d->last_read_inbox_message_date = m->date;
-  } else if (G()->use_message_database()) {
-    ReadHistoryOnServerLogEvent log_event;
-    log_event.dialog_id_ = dialog_id;
-    log_event.max_message_id_ = max_message_id;
-    add_log_event(read_history_log_event_ids_[dialog_id][0], get_log_event_storer(log_event),
-                  LogEvent::HandlerType::ReadHistoryOnServer, "read history");
-  }
-
-  updated_read_history_message_ids_[dialog_id].insert(MessageId());
-
-  pending_read_history_timeout_.set_timeout_in(dialog_id.get(), need_delay ? MIN_READ_HISTORY_DELAY : 0);
-}
-
-void MessagesManager::read_message_thread_history_on_server(Dialog *d, MessageId top_thread_message_id,
-                                                            MessageId max_message_id, MessageId last_message_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  CHECK(top_thread_message_id.is_valid());
-  CHECK(top_thread_message_id.is_server());
-  CHECK(max_message_id.is_server());
-
-  auto dialog_id = d->dialog_id;
-  LOG(INFO) << "Read history in thread of " << top_thread_message_id << " in " << dialog_id << " on server up to "
-            << max_message_id;
-
-  if (G()->use_message_database()) {
-    ReadMessageThreadHistoryOnServerLogEvent log_event;
-    log_event.dialog_id_ = dialog_id;
-    log_event.top_thread_message_id_ = top_thread_message_id;
-    log_event.max_message_id_ = max_message_id;
-    add_log_event(read_history_log_event_ids_[dialog_id][top_thread_message_id.get()], get_log_event_storer(log_event),
-                  LogEvent::HandlerType::ReadMessageThreadHistoryOnServer, "read history");
-  }
-
-  updated_read_history_message_ids_[dialog_id].insert(top_thread_message_id);
-
-  bool need_delay = d->open_count > 0 && last_message_id.is_valid() && max_message_id < last_message_id;
-  pending_read_history_timeout_.set_timeout_in(dialog_id.get(), need_delay ? MIN_READ_HISTORY_DELAY : 0);
-}
-
-void MessagesManager::do_read_history_on_server(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  auto it = updated_read_history_message_ids_.find(dialog_id);
-  if (it != updated_read_history_message_ids_.end()) {
-    auto top_thread_message_ids = std::move(it->second);
-    updated_read_history_message_ids_.erase(it);
-    for (auto top_thread_message_id : top_thread_message_ids) {
-      if (!top_thread_message_id.is_valid()) {
-        read_history_on_server_impl(d, MessageId());
-      } else {
-        read_message_thread_history_on_server_impl(d, top_thread_message_id, MessageId());
-      }
-    }
-  }
-}
-
-void MessagesManager::read_history_on_server_impl(Dialog *d, MessageId max_message_id) {
-  CHECK(d != nullptr);
-  CHECK(max_message_id == MessageId() || max_message_id.is_valid());
-  auto dialog_id = d->dialog_id;
-
-  {
-    auto message_id = d->last_read_inbox_message_id;
-    if (dialog_id.get_type() != DialogType::SecretChat) {
-      message_id = message_id.get_prev_server_message_id();
-    }
-    if (message_id > max_message_id) {
-      max_message_id = message_id;
-    }
-  }
-
-  Promise<Unit> promise;
-  auto &log_event_id = read_history_log_event_ids_[dialog_id][0];
-  if (log_event_id.log_event_id != 0) {
-    log_event_id.generation++;
-    promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), dialog_id, generation = log_event_id.generation](Result<Unit> result) {
-          if (!G()->close_flag()) {
-            send_closure(actor_id, &MessagesManager::on_read_history_finished, dialog_id, MessageId(), generation);
-          }
-        });
-  }
-  if (d->need_repair_server_unread_count && need_unread_counter(d->order)) {
-    repair_server_unread_count(dialog_id, d->server_unread_count, "read_history_on_server_impl");
-  }
-
-  if (!max_message_id.is_valid() || !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    return promise.set_value(Unit());
-  }
-
-  LOG(INFO) << "Send read history request in " << dialog_id << " up to " << max_message_id;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-      td_->create_handler<ReadHistoryQuery>(std::move(promise))->send(dialog_id, max_message_id);
-      break;
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      td_->create_handler<ReadChannelHistoryQuery>(std::move(promise))->send(channel_id, max_message_id);
-      break;
-    }
-    case DialogType::SecretChat: {
-      auto secret_chat_id = dialog_id.get_secret_chat_id();
-      auto date = d->last_read_inbox_message_date;
-      auto *m = get_message_force(d, max_message_id, "read_history_on_server_impl");
-      if (m != nullptr && m->date > date) {
-        date = m->date;
-      }
-      if (date == 0) {
-        LOG(ERROR) << "Don't know last read inbox message date in " << dialog_id;
-        return promise.set_value(Unit());
-      }
-      send_closure(G()->secret_chats_manager(), &SecretChatsManager::send_read_history, secret_chat_id, date,
-                   std::move(promise));
-      break;
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void MessagesManager::read_message_thread_history_on_server_impl(Dialog *d, MessageId top_thread_message_id,
-                                                                 MessageId max_message_id) {
-  CHECK(d != nullptr);
-  CHECK(max_message_id == MessageId() || max_message_id.is_valid());
-  auto dialog_id = d->dialog_id;
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-
-  const Message *m = get_message_force(d, top_thread_message_id, "read_message_thread_history_on_server_impl");
-  if (m != nullptr) {
-    auto message_id = m->reply_info.last_read_inbox_message_id_.get_prev_server_message_id();
-    if (message_id > max_message_id) {
-      max_message_id = message_id;
-    }
-  }
-
-  Promise<Unit> promise;
-  auto &log_event_id = read_history_log_event_ids_[dialog_id][top_thread_message_id.get()];
-  if (log_event_id.log_event_id != 0) {
-    log_event_id.generation++;
-    promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, top_thread_message_id,
-                                      generation = log_event_id.generation](Result<Unit> result) {
-      if (!G()->close_flag()) {
-        send_closure(actor_id, &MessagesManager::on_read_history_finished, dialog_id, top_thread_message_id,
-                     generation);
-      }
-    });
-  }
-
-  if (!max_message_id.is_valid() || !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return promise.set_value(Unit());
-  }
-
-  LOG(INFO) << "Send read history request in thread of " << top_thread_message_id << " in " << dialog_id << " up to "
-            << max_message_id;
-  td_->create_handler<ReadDiscussionQuery>(std::move(promise))->send(dialog_id, top_thread_message_id, max_message_id);
-}
-
-void MessagesManager::on_read_history_finished(DialogId dialog_id, MessageId top_thread_message_id, uint64 generation) {
-  auto dialog_it = read_history_log_event_ids_.find(dialog_id);
-  if (dialog_it == read_history_log_event_ids_.end()) {
-    return;
-  }
-  auto it = dialog_it->second.find(top_thread_message_id.get());
-  if (it == dialog_it->second.end()) {
-    return;
-  }
-  delete_log_event(it->second, generation, "read history");
-  if (it->second.log_event_id == 0) {
-    dialog_it->second.erase(it);
-    if (dialog_it->second.empty()) {
-      read_history_log_event_ids_.erase(dialog_it);
-    }
-  }
-}
-
-template <class T, class It>
-vector<MessageId> MessagesManager::get_message_history_slice(const T &begin, It it, const T &end,
-                                                             MessageId from_message_id, int32 offset, int32 limit) {
-  int32 left_offset = -offset;
-  int32 left_limit = limit + offset;
-  while (left_offset > 0 && it != end) {
-    ++it;
-    left_offset--;
-    left_limit++;
-  }
-
-  vector<MessageId> message_ids;
-  while (left_limit > 0 && it != begin) {
-    --it;
-    left_limit--;
-    message_ids.push_back(*it);
-  }
-  return message_ids;
-}
-
-std::pair<DialogId, vector<MessageId>> MessagesManager::get_message_thread_history(
-    DialogId dialog_id, MessageId message_id, MessageId from_message_id, int32 offset, int32 limit, int64 &random_id,
-    Promise<Unit> &&promise) {
-  if (limit <= 0) {
-    promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-    return {};
-  }
-  if (limit > MAX_GET_HISTORY) {
-    limit = MAX_GET_HISTORY;
-  }
-  if (offset > 0) {
-    promise.set_error(Status::Error(400, "Parameter offset must be non-positive"));
-    return {};
-  }
-  if (offset <= -MAX_GET_HISTORY) {
-    promise.set_error(Status::Error(400, "Parameter offset must be greater than -100"));
-    return {};
-  }
-  if (offset < -limit) {
-    promise.set_error(Status::Error(400, "Parameter offset must be greater than or equal to -limit"));
-    return {};
-  }
-  bool is_limit_increased = false;
-  if (limit == -offset) {
-    limit++;
-    is_limit_increased = true;
-  }
-  CHECK(0 < limit && limit <= MAX_GET_HISTORY);
-  CHECK(-limit < offset && offset <= 0);
-
-  Dialog *d = get_dialog_force(dialog_id, "get_message_thread_history");
-  if (d == nullptr) {
-    promise.set_error(Status::Error(400, "Chat not found"));
-    return {};
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return {};
-  }
-  if (dialog_id.get_type() != DialogType::Channel) {
-    promise.set_error(Status::Error(400, "Can't get message thread history in the chat"));
-    return {};
-  }
-
-  if (from_message_id == MessageId() || from_message_id.get() > MessageId::max().get()) {
-    from_message_id = MessageId::max();
-  }
-  if (!from_message_id.is_valid()) {
-    promise.set_error(Status::Error(400, "Parameter from_message_id must be identifier of a chat message or 0"));
-    return {};
-  }
-
-  MessageFullId top_thread_message_full_id;
-  if (message_id == MessageId(ServerMessageId(1)) && td_->dialog_manager_->is_forum_channel(dialog_id)) {
-    top_thread_message_full_id = MessageFullId{dialog_id, message_id};
-  } else {
-    message_id = get_persistent_message_id(d, message_id);
-    Message *m = get_message_force(d, message_id, "get_message_thread_history 1");
-    if (m == nullptr) {
-      promise.set_error(Status::Error(400, "Message not found"));
-      return {};
-    }
-
-    auto r_top_thread_message_full_id = get_top_thread_message_full_id(dialog_id, m, true);
-    if (r_top_thread_message_full_id.is_error()) {
-      promise.set_error(r_top_thread_message_full_id.move_as_error());
-      return {};
-    }
-    top_thread_message_full_id = r_top_thread_message_full_id.move_as_ok();
-    if ((m->reply_info.is_empty() || !m->reply_info.is_comment_) &&
-        top_thread_message_full_id.get_message_id() != m->message_id) {
-      CHECK(dialog_id == top_thread_message_full_id.get_dialog_id());
-      // get information about the thread from the top message
-      message_id = top_thread_message_full_id.get_message_id();
-      CHECK(message_id.is_valid());
-    }
-
-    if (!top_thread_message_full_id.get_message_id().is_valid()) {
-      CHECK(m->reply_info.is_comment_);
-      get_message_thread(
-          dialog_id, message_id,
-          PromiseCreator::lambda([promise = std::move(promise)](Result<MessageThreadInfo> &&result) mutable {
-            if (result.is_error()) {
-              promise.set_error(result.move_as_error());
-            } else {
-              promise.set_value(Unit());
-            }
-          }));
-      return {};
-    }
-  }
-
-  if (random_id != 0) {
-    // request has already been sent before
-    auto it = found_dialog_messages_.find(random_id);
-    CHECK(it != found_dialog_messages_.end());
-    auto result = std::move(it->second.message_ids);
-    found_dialog_messages_.erase(it);
-
-    auto dialog_id_it = found_dialog_messages_dialog_id_.find(random_id);
-    if (dialog_id_it != found_dialog_messages_dialog_id_.end()) {
-      dialog_id = dialog_id_it->second;
-      found_dialog_messages_dialog_id_.erase(dialog_id_it);
-
-      d = get_dialog(dialog_id);
-      CHECK(d != nullptr);
-    }
-    if (dialog_id != top_thread_message_full_id.get_dialog_id()) {
-      promise.set_error(Status::Error(500, "Receive messages in an unexpected chat"));
-      return {};
-    }
-
-    auto yet_unsent_it = yet_unsent_thread_message_ids_.find(top_thread_message_full_id);
-    if (yet_unsent_it != yet_unsent_thread_message_ids_.end()) {
-      const std::set<MessageId> &message_ids = yet_unsent_it->second;
-      auto merge_message_ids = get_message_history_slice(message_ids.begin(), message_ids.lower_bound(from_message_id),
-                                                         message_ids.end(), from_message_id, offset, limit);
-      vector<MessageId> new_result(result.size() + merge_message_ids.size());
-      std::merge(result.begin(), result.end(), merge_message_ids.begin(), merge_message_ids.end(), new_result.begin(),
-                 std::greater<>());
-      result = std::move(new_result);
-    }
-
-    Message *top_m = get_message_force(d, top_thread_message_full_id.get_message_id(), "get_message_thread_history 2");
-    if (top_m != nullptr && !top_m->local_thread_message_ids.empty()) {
-      vector<MessageId> &message_ids = top_m->local_thread_message_ids;
-      vector<MessageId> merge_message_ids;
-      while (true) {
-        merge_message_ids = get_message_history_slice(
-            message_ids.begin(), std::lower_bound(message_ids.begin(), message_ids.end(), from_message_id),
-            message_ids.end(), from_message_id, offset, limit);
-        bool found_deleted = false;
-        for (auto local_message_id : merge_message_ids) {
-          Message *local_m = get_message_force(d, local_message_id, "get_message_thread_history 3");
-          if (local_m == nullptr) {
-            auto local_it = std::lower_bound(message_ids.begin(), message_ids.end(), local_message_id);
-            CHECK(local_it != message_ids.end() && *local_it == local_message_id);
-            message_ids.erase(local_it);
-            found_deleted = true;
-          }
-        }
-        if (!found_deleted) {
-          break;
-        }
-        on_message_changed(d, top_m, false, "get_message_thread_history");
-      }
-      vector<MessageId> new_result(result.size() + merge_message_ids.size());
-      std::merge(result.begin(), result.end(), merge_message_ids.begin(), merge_message_ids.end(), new_result.begin(),
-                 std::greater<>());
-      result = std::move(new_result);
-    }
-
-    if (is_limit_increased) {
-      limit--;
-    }
-
-    std::reverse(result.begin(), result.end());
-    result = get_message_history_slice(result.begin(), std::lower_bound(result.begin(), result.end(), from_message_id),
-                                       result.end(), from_message_id, offset, limit);
-
-    LOG(INFO) << "Return " << result.size() << " messages in result to getMessageThreadHistory";
-
-    promise.set_value(Unit());
-    return {dialog_id, std::move(result)};
-  }
-
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || found_dialog_messages_.count(random_id) > 0);
-  found_dialog_messages_[random_id];  // reserve place for result
-
-  td_->create_handler<SearchMessagesQuery>(std::move(promise))
-      ->send(dialog_id, SavedMessagesTopicId(), string(), DialogId(), from_message_id.get_next_server_message_id(),
-             offset, limit, MessageSearchFilter::Empty, message_id, ReactionType(), random_id);
-  return {};
-}
-
-void MessagesManager::get_dialog_message_calendar(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                                  MessageId from_message_id, MessageSearchFilter filter,
-                                                  Promise<td_api::object_ptr<td_api::messageCalendar>> &&promise) {
-  LOG(INFO) << "Get message calendar in " << dialog_id << " with " << saved_messages_topic_id << " filtered by "
-            << filter << " from " << from_message_id;
-
-  if (from_message_id.get() > MessageId::max().get()) {
-    from_message_id = MessageId::max();
-  }
-
-  if (!from_message_id.is_valid() && from_message_id != MessageId()) {
-    return promise.set_error(Status::Error(400, "Parameter from_message_id must be identifier of a chat message or 0"));
-  }
-  from_message_id = from_message_id.get_next_server_message_id();
-
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Read, "get_dialog_message_calendar"));
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_in(td_, dialog_id));
-
-  CHECK(filter != MessageSearchFilter::Call && filter != MessageSearchFilter::MissedCall);
-  if (filter == MessageSearchFilter::Empty || filter == MessageSearchFilter::Mention ||
-      filter == MessageSearchFilter::UnreadMention || filter == MessageSearchFilter::UnreadReaction) {
-    if (filter != MessageSearchFilter::Empty && saved_messages_topic_id.is_valid()) {
-      return promise.set_value(td_api::make_object<td_api::messageCalendar>());
-    }
-    return promise.set_error(Status::Error(400, "The filter is not supported"));
-  }
-
-  // Trying to use database
-  if (G()->use_message_database() && !saved_messages_topic_id.is_valid()) {
-    MessageId first_db_message_id = get_first_database_message_id_by_index(d, filter);
-    int32 message_count = d->message_count_by_index[message_search_filter_index(filter)];
-    auto fixed_from_message_id = from_message_id;
-    if (fixed_from_message_id == MessageId()) {
-      fixed_from_message_id = MessageId::max();
-    }
-    LOG(INFO) << "Get message calendar in " << dialog_id << " from " << fixed_from_message_id << ", have up to "
-              << first_db_message_id << ", message_count = " << message_count;
-    if (first_db_message_id < fixed_from_message_id && message_count != -1) {
-      LOG(INFO) << "Get message calendar from database in " << dialog_id << " from " << fixed_from_message_id;
-      auto new_promise =
-          PromiseCreator::lambda([dialog_id, fixed_from_message_id, first_db_message_id, filter,
-                                  promise = std::move(promise)](Result<MessageDbCalendar> r_calendar) mutable {
-            send_closure(G()->messages_manager(), &MessagesManager::on_get_message_calendar_from_database, dialog_id,
-                         fixed_from_message_id, first_db_message_id, filter, std::move(r_calendar), std::move(promise));
-          });
-      MessageDbDialogCalendarQuery db_query;
-      db_query.dialog_id = dialog_id;
-      db_query.filter = filter;
-      db_query.from_message_id = fixed_from_message_id;
-      db_query.tz_offset = static_cast<int32>(td_->option_manager_->get_option_integer("utc_time_offset"));
-      G()->td_db()->get_message_db_async()->get_dialog_message_calendar(db_query, std::move(new_promise));
-      return;
-    }
-  }
-  if (filter == MessageSearchFilter::FailedToSend) {
-    return promise.set_value(td_api::make_object<td_api::messageCalendar>());
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      return get_message_calendar_from_server(dialog_id, saved_messages_topic_id, from_message_id, filter,
-                                              std::move(promise));
-    case DialogType::SecretChat:
-      return promise.set_value(td_api::make_object<td_api::messageCalendar>());
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return promise.set_error(Status::Error(500, "Message search is not supported"));
-  }
-}
-
-void MessagesManager::get_message_calendar_from_server(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                                       MessageId from_message_id, MessageSearchFilter filter,
-                                                       Promise<td_api::object_ptr<td_api::messageCalendar>> &&promise) {
-  td_->create_handler<GetSearchResultCalendarQuery>(std::move(promise))
-      ->send(dialog_id, saved_messages_topic_id, from_message_id, filter);
-}
-
-void MessagesManager::on_get_message_calendar_from_database(
-    DialogId dialog_id, MessageId from_message_id, MessageId first_db_message_id, MessageSearchFilter filter,
-    Result<MessageDbCalendar> r_calendar, Promise<td_api::object_ptr<td_api::messageCalendar>> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (r_calendar.is_error()) {
-    LOG(ERROR) << "Failed to get message calendar from the database: " << r_calendar.error();
-    if (first_db_message_id != MessageId::min() && dialog_id.get_type() != DialogType::SecretChat &&
-        filter != MessageSearchFilter::FailedToSend) {
-      return get_message_calendar_from_server(dialog_id, SavedMessagesTopicId(), from_message_id, filter,
-                                              std::move(promise));
-    }
-    return promise.set_value(td_api::make_object<td_api::messageCalendar>());
-  }
-  CHECK(!from_message_id.is_scheduled());
-  CHECK(!first_db_message_id.is_scheduled());
-
-  auto calendar = r_calendar.move_as_ok();
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  vector<std::pair<MessageId, int32>> periods;
-  periods.reserve(calendar.messages.size());
-  for (size_t i = 0; i < calendar.messages.size(); i++) {
-    auto m = on_get_message_from_database(d, calendar.messages[i], false, "on_get_message_calendar_from_database");
-    if (m != nullptr && first_db_message_id <= m->message_id) {
-      CHECK(!m->message_id.is_scheduled());
-      periods.emplace_back(m->message_id, calendar.total_counts[i]);
-    }
-  }
-
-  if (periods.empty() && first_db_message_id != MessageId::min() && dialog_id.get_type() != DialogType::SecretChat) {
-    LOG(INFO) << "No messages found in database";
-    return get_message_calendar_from_server(dialog_id, SavedMessagesTopicId(), from_message_id, filter,
-                                            std::move(promise));
-  } else {
-    auto total_count = d->message_count_by_index[message_search_filter_index(filter)];
-    vector<td_api::object_ptr<td_api::messageCalendarDay>> days;
-    for (auto &period : periods) {
-      const auto *m = get_message(d, period.first);
-      CHECK(m != nullptr);
-      days.push_back(td_api::make_object<td_api::messageCalendarDay>(
-          period.second, get_message_object(dialog_id, m, "on_get_message_calendar_from_database")));
-    }
-    return promise.set_value(td_api::make_object<td_api::messageCalendar>(total_count, std::move(days)));
-  }
-}
-
-MessagesManager::FoundDialogMessages MessagesManager::search_dialog_messages(
-    DialogId dialog_id, const string &query, const td_api::object_ptr<td_api::MessageSender> &sender,
-    MessageId from_message_id, int32 offset, int32 limit, MessageSearchFilter filter, MessageId top_thread_message_id,
-    SavedMessagesTopicId saved_messages_topic_id, const ReactionType &tag, int64 &random_id, bool use_db,
-    Promise<Unit> &&promise) {
-  if (random_id != 0) {
-    // request has already been sent before
-    auto it = found_dialog_messages_.find(random_id);
-    if (it != found_dialog_messages_.end()) {
-      CHECK(found_dialog_messages_dialog_id_.count(random_id) == 0);
-      auto result = std::move(it->second);
-      found_dialog_messages_.erase(it);
-      promise.set_value(Unit());
-      return result;
-    }
-    random_id = 0;
-  }
-  LOG(INFO) << "Search messages with query \"" << query << "\" in " << dialog_id << " sent by "
-            << oneline(to_string(sender)) << " in thread of " << top_thread_message_id << " and in "
-            << saved_messages_topic_id << " filtered by " << filter << " from " << from_message_id << " with offset "
-            << offset << " and limit " << limit;
-
-  FoundDialogMessages result;
-  if (limit <= 0) {
-    promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-    return result;
-  }
-  if (limit > MAX_SEARCH_MESSAGES) {
-    limit = MAX_SEARCH_MESSAGES;
-  }
-  if (limit <= -offset) {
-    promise.set_error(Status::Error(400, "Parameter limit must be greater than -offset"));
-    return result;
-  }
-  if (offset > 0) {
-    promise.set_error(Status::Error(400, "Parameter offset must be non-positive"));
-    return result;
-  }
-
-  if (from_message_id.get() > MessageId::max().get()) {
-    from_message_id = MessageId::max();
-  }
-
-  if (!from_message_id.is_valid() && from_message_id != MessageId()) {
-    promise.set_error(Status::Error(400, "Parameter from_message_id must be identifier of a chat message or 0"));
-    return result;
-  }
-  from_message_id = from_message_id.get_next_server_message_id();
-
-  const Dialog *d = get_dialog_force(dialog_id, "search_dialog_messages");
-  if (d == nullptr) {
-    promise.set_error(Status::Error(400, "Chat not found"));
-    return result;
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return result;
-  }
-
-  auto r_sender_dialog_id = get_message_sender_dialog_id(td_, sender, true, true);
-  if (r_sender_dialog_id.is_error()) {
-    promise.set_error(r_sender_dialog_id.move_as_error());
-    return result;
-  }
-  auto sender_dialog_id = r_sender_dialog_id.move_as_ok();
-  if (sender_dialog_id != DialogId() &&
-      !td_->dialog_manager_->have_input_peer(sender_dialog_id, false, AccessRights::Know)) {
-    promise.set_error(Status::Error(400, "Invalid message sender specified"));
-    return result;
-  }
-  if (sender_dialog_id == dialog_id && td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    sender_dialog_id = DialogId();
-  }
-
-  if (filter == MessageSearchFilter::FailedToSend && sender_dialog_id.is_valid()) {
-    if (sender_dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-      promise.set_value(Unit());
-      return result;
-    }
-    sender_dialog_id = DialogId();
-  }
-
-  if (top_thread_message_id != MessageId()) {
-    if (!top_thread_message_id.is_valid() || !top_thread_message_id.is_server()) {
-      promise.set_error(Status::Error(400, "Invalid message thread specified"));
-      return result;
-    }
-    if (dialog_id.get_type() != DialogType::Channel || td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-      promise.set_error(Status::Error(400, "Can't filter by message thread in the chat"));
-      return result;
-    }
-  }
-  {
-    auto status = saved_messages_topic_id.is_valid_in(td_, dialog_id);
-    if (status.is_error()) {
-      promise.set_error(std::move(status));
-      return result;
-    }
-  }
-
-  if (sender_dialog_id.get_type() == DialogType::SecretChat) {
-    promise.set_value(Unit());
-    return result;
-  }
-
-  if (filter == MessageSearchFilter::UnreadMention || filter == MessageSearchFilter::UnreadReaction) {
-    if (!query.empty()) {
-      promise.set_error(Status::Error(400, "Non-empty query is unsupported with the specified filter"));
-      return result;
-    }
-    if (sender_dialog_id.is_valid()) {
-      promise.set_error(Status::Error(400, "Filtering by sender is unsupported with the specified filter"));
-      return result;
-    }
-    if (saved_messages_topic_id.is_valid()) {
-      promise.set_value(Unit());
-      return result;
-    }
-  }
-
-  if (tag.is_paid_reaction()) {
-    promise.set_value(Unit());
-    return result;
-  }
-
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || found_dialog_messages_.count(random_id) > 0);
-  found_dialog_messages_[random_id];  // reserve place for result
-
-  // Trying to use database
-  if (use_db && query.empty() && G()->use_message_database() && filter != MessageSearchFilter::Empty &&
-      !sender_dialog_id.is_valid() && top_thread_message_id == MessageId() &&
-      saved_messages_topic_id == SavedMessagesTopicId() && tag.is_empty()) {
-    MessageId first_db_message_id = get_first_database_message_id_by_index(d, filter);
-    int32 message_count = d->message_count_by_index[message_search_filter_index(filter)];
-    auto fixed_from_message_id = from_message_id;
-    if (fixed_from_message_id == MessageId()) {
-      fixed_from_message_id = MessageId::max();
-    }
-    LOG(INFO) << "Search messages in " << dialog_id << " from " << fixed_from_message_id << ", have up to "
-              << first_db_message_id << ", message_count = " << message_count;
-    if ((first_db_message_id < fixed_from_message_id || (first_db_message_id == fixed_from_message_id && offset < 0)) &&
-        message_count != -1) {
-      LOG(INFO) << "Search messages in database in " << dialog_id << " from " << fixed_from_message_id
-                << " and with limit " << limit;
-      auto new_promise = PromiseCreator::lambda(
-          [random_id, dialog_id, fixed_from_message_id, first_db_message_id, filter, offset, limit,
-           promise = std::move(promise)](Result<vector<MessageDbDialogMessage>> r_messages) mutable {
-            send_closure(G()->messages_manager(), &MessagesManager::on_search_dialog_message_db_result, random_id,
-                         dialog_id, fixed_from_message_id, first_db_message_id, filter, offset, limit,
-                         std::move(r_messages), std::move(promise));
-          });
-      MessageDbMessagesQuery db_query;
-      db_query.dialog_id = dialog_id;
-      db_query.filter = filter;
-      db_query.from_message_id = fixed_from_message_id;
-      db_query.offset = offset;
-      db_query.limit = limit;
-      G()->td_db()->get_message_db_async()->get_messages(db_query, std::move(new_promise));
-      return result;
-    }
-  }
-  if (filter == MessageSearchFilter::FailedToSend) {
-    found_dialog_messages_.erase(random_id);
-    promise.set_value(Unit());
-    return result;
-  }
-
-  LOG(DEBUG) << "Search messages on server in " << dialog_id << " with query \"" << query << "\" from "
-             << sender_dialog_id << " in thread of " << top_thread_message_id << " from " << from_message_id
-             << " and with limit " << limit;
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      td_->create_handler<SearchMessagesQuery>(std::move(promise))
-          ->send(dialog_id, saved_messages_topic_id, query, sender_dialog_id, from_message_id, offset, limit, filter,
-                 top_thread_message_id, tag, random_id);
-      break;
-    case DialogType::SecretChat:
-      if (filter == MessageSearchFilter::UnreadMention || filter == MessageSearchFilter::Pinned ||
-          filter == MessageSearchFilter::UnreadReaction) {
-        promise.set_value(Unit());
-      } else {
-        promise.set_error(Status::Error(500, "Message search is not supported in secret chats"));
-      }
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      promise.set_error(Status::Error(500, "Message search is not supported"));
-  }
-  return result;
-}
-
-void MessagesManager::search_call_messages(const string &offset, int32 limit, bool only_missed,
-                                           Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_MESSAGES) {
-    limit = MAX_SEARCH_MESSAGES;
-  }
-
-  MessageId offset_message_id;
-  if (!offset.empty()) {
-    auto r_offset_server_message_id = to_integer_safe<int32>(offset);
-    if (r_offset_server_message_id.is_error()) {
-      return promise.set_error(Status::Error(400, "Invalid offset specified"));
-    }
-
-    offset_message_id = MessageId(ServerMessageId(r_offset_server_message_id.ok()));
-  }
-
-  auto filter = only_missed ? MessageSearchFilter::MissedCall : MessageSearchFilter::Call;
-  if (G()->use_message_database()) {
-    // try to use database
-    MessageId first_db_message_id =
-        calls_db_state_.first_calls_database_message_id_by_index[call_message_search_filter_index(filter)];
-    int32 message_count = calls_db_state_.message_count_by_index[call_message_search_filter_index(filter)];
-    auto fixed_from_message_id = offset_message_id;
-    if (fixed_from_message_id == MessageId()) {
-      fixed_from_message_id = MessageId::max();
-    }
-    CHECK(fixed_from_message_id.is_valid() && fixed_from_message_id.is_server());
-    LOG(INFO) << "Search call messages from " << fixed_from_message_id << ", have up to " << first_db_message_id
-              << ", message_count = " << message_count;
-    if (first_db_message_id < fixed_from_message_id && message_count != -1) {
-      LOG(INFO) << "Search messages in database from " << fixed_from_message_id << " and with limit " << limit;
-
-      MessageDbCallsQuery db_query;
-      db_query.filter = filter;
-      db_query.from_unique_message_id = fixed_from_message_id.get_server_message_id().get();
-      db_query.limit = limit;
-      G()->td_db()->get_message_db_async()->get_calls(
-          db_query,
-          PromiseCreator::lambda([first_db_message_id, offset_message_id, limit, filter,
-                                  promise = std::move(promise)](Result<MessageDbCallsResult> calls_result) mutable {
-            send_closure(G()->messages_manager(), &MessagesManager::on_message_db_calls_result, std::move(calls_result),
-                         first_db_message_id, offset_message_id, limit, filter, std::move(promise));
-          }));
-      return;
-    }
-  }
-
-  td_->create_handler<SearchCallMessagesQuery>(std::move(promise))->send(offset_message_id, limit, filter);
-}
-
-void MessagesManager::load_active_live_location_messages(Promise<Unit> &&promise) {
-  if (!G()->use_message_database() || td_->auth_manager_->is_bot()) {
-    are_active_live_location_messages_loaded_ = true;
-  }
-  if (are_active_live_location_messages_loaded_) {
-    return promise.set_value(Unit());
-  }
-  load_active_live_location_messages_queries_.push_back(std::move(promise));
-  if (load_active_live_location_messages_queries_.size() == 1u) {
-    LOG(INFO) << "Trying to load active live location messages from database";
-    G()->td_db()->get_sqlite_pmc()->get(
-        "di_active_live_location_messages", PromiseCreator::lambda([](string value) {
-          send_closure(G()->messages_manager(),
-                       &MessagesManager::on_load_active_live_location_message_full_ids_from_database, std::move(value));
-        }));
-  }
-}
-
-void MessagesManager::on_load_active_live_location_message_full_ids_from_database(string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Active live location messages aren't found in the database";
-    are_active_live_location_messages_loaded_ = true;
-    if (!active_live_location_message_full_ids_.empty()) {
-      save_active_live_locations();
-    }
-    set_promises(load_active_live_location_messages_queries_);
-    return;
-  }
-
-  LOG(INFO) << "Successfully loaded active live location messages list of size " << value.size() << " from database";
-
-  const auto new_message_full_ids = std::move(active_live_location_message_full_ids_);
-  vector<MessageFullId> old_message_full_ids;
-  log_event_parse(old_message_full_ids, value).ensure();
-
-  // TODO asynchronously load messages from database
-  active_live_location_message_full_ids_.clear();
-  for (const auto &message_full_id : old_message_full_ids) {
-    Message *m = get_message_force(message_full_id, "on_load_active_live_location_message_full_ids_from_database");
-    if (m != nullptr) {
-      try_add_active_live_location(message_full_id.get_dialog_id(), m);
-    }
-  }
-
-  for (const auto &message_full_id : new_message_full_ids) {
-    add_active_live_location(message_full_id);
-  }
-
-  are_active_live_location_messages_loaded_ = true;
-  if (new_message_full_ids.size() != active_live_location_message_full_ids_.size()) {
-    send_update_active_live_location_messages();
-  }
-  if (!new_message_full_ids.empty() || old_message_full_ids.size() != active_live_location_message_full_ids_.size()) {
-    save_active_live_locations();
-  }
-  set_promises(load_active_live_location_messages_queries_);
-}
-
-bool MessagesManager::try_add_active_live_location(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-
-  if (td_->auth_manager_->is_bot() || m->content->get_type() != MessageContentType::LiveLocation ||
-      m->message_id.is_scheduled() || m->message_id.is_local() || m->message_id.is_yet_unsent() ||
-      m->via_bot_user_id.is_valid() || m->via_business_bot_user_id.is_valid() || m->forward_info != nullptr) {
-    return false;
-  }
-
-  auto live_period = get_message_content_live_location_period(m->content.get());
-  if (live_period <= G()->unix_time() - m->date + 1) {  // bool is_expired flag?
-    // live location is expired
-    return false;
-  }
-  return add_active_live_location({dialog_id, m->message_id});
-}
-
-bool MessagesManager::add_active_live_location(MessageFullId message_full_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-  CHECK(message_full_id.get_message_id().is_valid());
-  if (!active_live_location_message_full_ids_.insert(message_full_id).second) {
-    return false;
-  }
-
-  if (G()->use_message_database()) {
-    if (are_active_live_location_messages_loaded_) {
-      save_active_live_locations();
-    } else if (load_active_live_location_messages_queries_.empty()) {
-      // load active live locations and save after that
-      load_active_live_location_messages(Auto());
-    }
-  }
-  return true;
-}
-
-bool MessagesManager::delete_active_live_location(MessageFullId message_full_id) {
-  return active_live_location_message_full_ids_.erase(message_full_id) != 0;
-}
-
-void MessagesManager::schedule_active_live_location_expiration() {
-  if (active_live_location_message_full_ids_.empty()) {
-    live_location_expire_timeout_.cancel_timeout();
-  } else {
-    double expires_in = std::numeric_limits<int32>::max();
-    for (auto message_full_id : active_live_location_message_full_ids_) {
-      const auto *m = get_message(message_full_id);
-      CHECK(m != nullptr);
-      double live_period = get_message_content_live_location_period(m->content.get());
-      if (live_period > 2e9) {
-        continue;
-      }
-      expires_in = min(expires_in, live_period + m->date - G()->unix_time());
-    }
-    if (expires_in < 2e9) {
-      LOG(INFO) << "Schedule live location expiration in " << expires_in;
-      live_location_expire_timeout_.set_callback(std::move(on_live_location_expire_timeout_callback));
-      live_location_expire_timeout_.set_callback_data(static_cast<void *>(this));
-      live_location_expire_timeout_.set_timeout_in(expires_in);
-    } else {
-      LOG(INFO) << "Have no active expiring live locations";
-    }
-  }
-}
-
-void MessagesManager::save_active_live_locations() {
-  CHECK(are_active_live_location_messages_loaded_);
-  LOG(INFO) << "Save active live locations of size " << active_live_location_message_full_ids_.size() << " to database";
-  if (G()->use_message_database()) {
-    G()->td_db()->get_sqlite_pmc()->set("di_active_live_location_messages",
-                                        log_event_store(active_live_location_message_full_ids_).as_slice().str(),
-                                        Auto());
-  }
-}
-
-void MessagesManager::on_message_live_location_viewed(Dialog *d, const Message *m) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  CHECK(m->content->get_type() == MessageContentType::LiveLocation);
-  CHECK(!m->message_id.is_scheduled());
-
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  switch (d->dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      // ok
-      break;
-    case DialogType::SecretChat:
-      return;
-    default:
-      UNREACHABLE();
-      return;
-  }
-  if (d->open_count == 0) {
-    return;
-  }
-
-  if (m->is_outgoing || !m->message_id.is_server() || m->via_bot_user_id.is_valid() ||
-      m->via_business_bot_user_id.is_valid() || !m->sender_user_id.is_valid() ||
-      td_->user_manager_->is_user_bot(m->sender_user_id) || m->forward_info != nullptr) {
-    return;
-  }
-
-  auto live_period = get_message_content_live_location_period(m->content.get());
-  if (live_period <= G()->unix_time() - m->date + 1) {
-    // live location is expired
-    return;
-  }
-
-  auto &live_location_task_id = pending_viewed_live_locations_[d->dialog_id][m->message_id];
-  if (live_location_task_id != 0) {
-    return;
-  }
-
-  live_location_task_id = ++viewed_live_location_task_id_;
-  auto &message_full_id = viewed_live_location_tasks_[live_location_task_id];
-  message_full_id = MessageFullId(d->dialog_id, m->message_id);
-  view_message_live_location_on_server_impl(live_location_task_id, message_full_id);
-}
-
-void MessagesManager::view_message_live_location_on_server(int64 task_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto it = viewed_live_location_tasks_.find(task_id);
-  if (it == viewed_live_location_tasks_.end()) {
-    return;
-  }
-
-  auto message_full_id = it->second;
-  Dialog *d = get_dialog(message_full_id.get_dialog_id());
-  const Message *m = get_message_force(d, message_full_id.get_message_id(), "view_message_live_location_on_server");
-  if (m == nullptr || get_message_content_live_location_period(m->content.get()) <= G()->unix_time() - m->date + 1) {
-    // the message was deleted or live location is expired
-    viewed_live_location_tasks_.erase(it);
-    auto live_locations_it = pending_viewed_live_locations_.find(d->dialog_id);
-    CHECK(live_locations_it != pending_viewed_live_locations_.end());
-    auto erased_count = live_locations_it->second.erase(message_full_id.get_message_id());
-    CHECK(erased_count > 0);
-    if (live_locations_it->second.empty()) {
-      pending_viewed_live_locations_.erase(live_locations_it);
-    }
-    return;
-  }
-
-  view_message_live_location_on_server_impl(task_id, message_full_id);
-}
-
-void MessagesManager::view_message_live_location_on_server_impl(int64 task_id, MessageFullId message_full_id) {
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), task_id](Unit result) {
-    send_closure(actor_id, &MessagesManager::on_message_live_location_viewed_on_server, task_id);
-  });
-  td_->message_query_manager_->read_message_contents_on_server(
-      message_full_id.get_dialog_id(), {message_full_id.get_message_id()}, 0, std::move(promise), true);
-}
-
-void MessagesManager::on_message_live_location_viewed_on_server(int64 task_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto it = viewed_live_location_tasks_.find(task_id);
-  if (it == viewed_live_location_tasks_.end()) {
-    return;
-  }
-
-  pending_message_live_location_view_timeout_.add_timeout_in(task_id, LIVE_LOCATION_VIEW_PERIOD);
-}
-
-void MessagesManager::try_add_bot_command_message_id(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || !td_->dialog_manager_->is_group_dialog(dialog_id) ||
-      m->message_id.is_scheduled() || !has_bot_commands(get_message_content_text(m->content.get()))) {
-    return;
-  }
-
-  dialog_bot_command_message_ids_[dialog_id].message_ids.insert(m->message_id);
-}
-
-void MessagesManager::delete_bot_command_message_id(DialogId dialog_id, MessageId message_id) {
-  if (message_id.is_scheduled()) {
-    return;
-  }
-  auto it = dialog_bot_command_message_ids_.find(dialog_id);
-  if (it == dialog_bot_command_message_ids_.end()) {
-    return;
-  }
-  if (it->second.message_ids.erase(message_id) && it->second.message_ids.empty()) {
-    dialog_bot_command_message_ids_.erase(it);
-  }
-}
-
-FileSourceId MessagesManager::get_message_file_source_id(MessageFullId message_full_id, bool force) {
-  if (!force) {
-    if (td_->auth_manager_->is_bot()) {
-      return FileSourceId();
-    }
-
-    auto dialog_id = message_full_id.get_dialog_id();
-    auto message_id = message_full_id.get_message_id();
-    if (!dialog_id.is_valid() || !(message_id.is_valid() || message_id.is_valid_scheduled()) ||
-        dialog_id.get_type() == DialogType::SecretChat || !message_id.is_any_server()) {
-      return FileSourceId();
-    }
-  }
-
-  auto &file_source_id = message_full_id_to_file_source_id_[message_full_id];
-  if (!file_source_id.is_valid()) {
-    file_source_id = td_->file_reference_manager_->create_message_file_source(message_full_id);
-  }
-  return file_source_id;
-}
-
-void MessagesManager::add_message_file_sources(DialogId dialog_id, const Message *m, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (dialog_id.get_type() != DialogType::SecretChat && m->is_content_secret) {
-    // return;
-  }
-
-  auto file_ids = get_message_file_ids(m);
-  if (file_ids.empty()) {
-    return;
-  }
-
-  // do not create file_source_id for messages without file_ids
-  auto file_source_id = get_message_file_source_id(MessageFullId(dialog_id, m->message_id));
-  if (file_source_id.is_valid()) {
-    for (auto file_id : file_ids) {
-      td_->file_manager_->add_file_source(file_id, file_source_id, source);
-    }
-  }
-}
-
-void MessagesManager::remove_message_file_sources(DialogId dialog_id, const Message *m, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto file_ids = get_message_file_ids(m);
-  if (file_ids.empty()) {
-    return;
-  }
-
-  // do not create file_source_id for messages without file_ids
-  auto file_source_id = get_message_file_source_id(MessageFullId(dialog_id, m->message_id));
-  if (file_source_id.is_valid()) {
-    for (auto file_id : file_ids) {
-      auto file_view = td_->file_manager_->get_file_view(file_id);
-      send_closure(td_->download_manager_actor_, &DownloadManager::remove_file, file_view.get_main_file_id(),
-                   file_source_id, false, Promise<Unit>());
-      td_->file_manager_->remove_file_source(file_id, file_source_id, source);
-    }
-  }
-}
-
-void MessagesManager::change_message_files(DialogId dialog_id, const Message *m, const vector<FileId> &old_file_ids,
-                                           const char *source) {
-  if (dialog_id.get_type() != DialogType::SecretChat && m->is_content_secret) {
-    // return;
-  }
-
-  auto new_file_ids = get_message_file_ids(m);
-  if (new_file_ids == old_file_ids) {
-    return;
-  }
-
-  MessageFullId message_full_id{dialog_id, m->message_id};
-  bool need_delete_files = need_delete_message_files(dialog_id, m);
-  auto file_source_id = get_message_file_source_id(message_full_id);
-  for (auto file_id : old_file_ids) {
-    if (!td::contains(new_file_ids, file_id)) {
-      if (need_delete_files && need_delete_file(message_full_id, file_id)) {
-        send_closure(G()->file_manager(), &FileManager::delete_file, file_id, Promise<Unit>(), "change_message_files");
-      }
-      if (file_source_id.is_valid()) {
-        auto file_view = td_->file_manager_->get_file_view(file_id);
-        send_closure(td_->download_manager_actor_, &DownloadManager::remove_file, file_view.get_main_file_id(),
-                     file_source_id, false, Promise<Unit>());
-      }
-    }
-  }
-
-  if (file_source_id.is_valid()) {
-    td_->file_manager_->change_files_source(file_source_id, old_file_ids, new_file_ids, source);
-  }
-}
-
-MessageId MessagesManager::get_first_database_message_id_by_index(const Dialog *d, MessageSearchFilter filter) {
-  CHECK(d != nullptr);
-  auto message_id = filter == MessageSearchFilter::Empty
-                        ? d->first_database_message_id
-                        : d->first_database_message_id_by_index[message_search_filter_index(filter)];
-  CHECK(!message_id.is_scheduled());
-  if (!message_id.is_valid()) {
-    if (d->dialog_id.get_type() == DialogType::SecretChat) {
-      LOG(ERROR) << "Invalid first_database_message_id_by_index in " << d->dialog_id;
-      return MessageId::min();
-    }
-    return MessageId::max();
-  }
-  return message_id;
-}
-
-void MessagesManager::on_search_dialog_message_db_result(int64 random_id, DialogId dialog_id, MessageId from_message_id,
-                                                         MessageId first_db_message_id, MessageSearchFilter filter,
-                                                         int32 offset, int32 limit,
-                                                         Result<vector<MessageDbDialogMessage>> r_messages,
-                                                         Promise<Unit> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (r_messages.is_error()) {
-    LOG(ERROR) << "Failed to get messages from the database: " << r_messages.error();
-    if (first_db_message_id != MessageId::min() && dialog_id.get_type() != DialogType::SecretChat &&
-        filter != MessageSearchFilter::FailedToSend) {
-      found_dialog_messages_.erase(random_id);
-    }
-    return promise.set_value(Unit());
-  }
-  CHECK(!from_message_id.is_scheduled());
-  CHECK(!first_db_message_id.is_scheduled());
-
-  auto messages = r_messages.move_as_ok();
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  auto it = found_dialog_messages_.find(random_id);
-  CHECK(it != found_dialog_messages_.end());
-  auto &res = it->second.message_ids;
-
-  MessageId next_from_message_id;
-  res.reserve(messages.size());
-  for (auto &message : messages) {
-    auto m = on_get_message_from_database(d, message, false, "on_search_dialog_message_db_result");
-    if (m != nullptr && first_db_message_id <= m->message_id) {
-      if (!next_from_message_id.is_valid() || m->message_id < next_from_message_id) {
-        next_from_message_id = m->message_id;
-      }
-      if (filter == MessageSearchFilter::UnreadMention && !m->contains_unread_mention) {
-        // skip already read by d->last_read_all_mentions_message_id mentions
-      } else {
-        CHECK(!m->message_id.is_scheduled());
-        res.push_back(m->message_id);
-      }
-    }
-  }
-
-  auto &message_count = d->message_count_by_index[message_search_filter_index(filter)];
-  auto result_size = narrow_cast<int32>(res.size());
-  bool from_the_end =
-      from_message_id == MessageId::max() || (offset < 0 && (result_size == 0 || res[0] < from_message_id));
-  if ((message_count != -1 && message_count < result_size) ||
-      (message_count > result_size && from_the_end && first_db_message_id == MessageId::min() &&
-       result_size < limit + offset)) {
-    LOG(INFO) << "Fix found message count in " << dialog_id << " from " << message_count << " to " << result_size;
-    message_count = result_size;
-    if (filter == MessageSearchFilter::UnreadMention) {
-      d->unread_mention_count = message_count;
-      update_dialog_mention_notification_count(d);
-      send_update_chat_unread_mention_count(d);
-    }
-    if (filter == MessageSearchFilter::UnreadReaction) {
-      d->unread_reaction_count = message_count;
-      // update_dialog_mention_notification_count(d);
-      send_update_chat_unread_reaction_count(d, "on_search_dialog_message_db_result");
-    }
-    on_dialog_updated(dialog_id, "on_search_dialog_message_db_result");
-  }
-  it->second.total_count = message_count;
-  it->second.next_from_message_id = next_from_message_id;
-  if (res.empty() && first_db_message_id != MessageId::min() && dialog_id.get_type() != DialogType::SecretChat) {
-    LOG(INFO) << "No messages found in database";
-    found_dialog_messages_.erase(it);
-  } else {
-    LOG(INFO) << "Found " << res.size() << " messages out of " << message_count << " in database";
-    if (from_the_end && filter == MessageSearchFilter::Pinned) {
-      set_dialog_last_pinned_message_id(d, res.empty() ? MessageId() : res[0]);
-    }
-  }
-  promise.set_value(Unit());
-}
-
-td_api::object_ptr<td_api::foundChatMessages> MessagesManager::get_found_chat_messages_object(
-    DialogId dialog_id, const FoundDialogMessages &found_dialog_messages, const char *source) {
-  auto *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  vector<tl_object_ptr<td_api::message>> result;
-  result.reserve(found_dialog_messages.message_ids.size());
-  for (const auto &message_id : found_dialog_messages.message_ids) {
-    auto message = get_message_object(d, message_id, source);
-    if (message != nullptr) {
-      result.push_back(std::move(message));
-    }
-  }
-
-  return td_api::make_object<td_api::foundChatMessages>(found_dialog_messages.total_count, std::move(result),
-                                                        found_dialog_messages.next_from_message_id.get());
-}
-
-td_api::object_ptr<td_api::foundMessages> MessagesManager::get_found_messages_object(
-    const FoundMessages &found_messages, const char *source) {
-  vector<tl_object_ptr<td_api::message>> result;
-  result.reserve(found_messages.message_full_ids.size());
-  for (const auto &message_full_id : found_messages.message_full_ids) {
-    auto message = get_message_object(message_full_id, source);
-    if (message != nullptr) {
-      result.push_back(std::move(message));
-    }
-  }
-
-  return td_api::make_object<td_api::foundMessages>(found_messages.total_count, std::move(result),
-                                                    found_messages.next_offset);
-}
-
-void MessagesManager::offline_search_messages(DialogId dialog_id, const string &query, string offset, int32 limit,
-                                              MessageSearchFilter filter,
-                                              Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  if (!G()->use_message_database()) {
-    return promise.set_error(Status::Error(400, "Message database is required to search messages in secret chats"));
-  }
-  if (query.empty()) {
-    return promise.set_value(get_found_messages_object({}, "offline_search_messages"));
-  }
-  if (dialog_id != DialogId() && !have_dialog_force(dialog_id, "offline_search_messages")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_MESSAGES) {
-    limit = MAX_SEARCH_MESSAGES;
-  }
-
-  MessageDbFtsQuery fts_query;
-  fts_query.query = query;
-  fts_query.dialog_id = dialog_id;
-  fts_query.filter = filter;
-  if (!offset.empty()) {
-    auto r_from_search_id = to_integer_safe<int64>(offset);
-    if (r_from_search_id.is_error()) {
-      return promise.set_error(Status::Error(400, "Invalid offset specified"));
-    }
-    fts_query.from_search_id = r_from_search_id.ok();
-  }
-  fts_query.limit = limit;
-
-  G()->td_db()->get_message_db_async()->get_messages_fts(
-      std::move(fts_query), PromiseCreator::lambda([offset = std::move(offset), limit, promise = std::move(promise)](
-                                                       Result<MessageDbFtsResult> fts_result) mutable {
-        send_closure(G()->messages_manager(), &MessagesManager::on_message_db_fts_result, std::move(fts_result),
-                     std::move(offset), limit, std::move(promise));
-      }));
-}
-
-void MessagesManager::on_message_db_fts_result(Result<MessageDbFtsResult> result, string offset, int32 limit,
-                                               Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-  auto fts_result = result.move_as_ok();
-
-  FoundMessages found_messages;
-  found_messages.message_full_ids.reserve(fts_result.messages.size());
-  for (auto &message : fts_result.messages) {
-    auto m = on_get_message_from_database(message, false, "on_message_db_fts_result");
-    if (m != nullptr) {
-      found_messages.message_full_ids.emplace_back(message.dialog_id, m->message_id);
-    }
-  }
-
-  found_messages.next_offset = fts_result.next_search_id <= 1 ? string() : to_string(fts_result.next_search_id);
-  found_messages.total_count = offset.empty() && fts_result.messages.size() < static_cast<size_t>(limit)
-                                   ? static_cast<int32>(fts_result.messages.size())
-                                   : -1;
-
-  promise.set_value(get_found_messages_object(found_messages, "on_message_db_fts_result"));
-}
-
-void MessagesManager::on_message_db_calls_result(Result<MessageDbCallsResult> result, MessageId first_db_message_id,
-                                                 MessageId offset_message_id, int32 limit, MessageSearchFilter filter,
-                                                 Promise<td_api::object_ptr<td_api::foundMessages>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, calls_result, std::move(result));
-
-  FoundMessages found_messages;
-  auto &res = found_messages.message_full_ids;
-
-  CHECK(!first_db_message_id.is_scheduled());
-  res.reserve(calls_result.messages.size());
-  MessageId next_offset_message_id;
-  for (auto &message : calls_result.messages) {
-    auto m = on_get_message_from_database(message, false, "on_message_db_calls_result");
-    if (m != nullptr && first_db_message_id <= m->message_id) {
-      if (!next_offset_message_id.is_valid() || m->message_id < next_offset_message_id) {
-        next_offset_message_id = m->message_id;
-      }
-      res.emplace_back(message.dialog_id, m->message_id);
-    }
-  }
-  found_messages.total_count = calls_db_state_.message_count_by_index[call_message_search_filter_index(filter)];
-  if (next_offset_message_id.is_valid()) {
-    found_messages.next_offset = PSTRING() << next_offset_message_id.get_server_message_id().get();
-  }
-
-  if (res.empty() && first_db_message_id != MessageId::min()) {
-    LOG(INFO) << "No messages found in database";
-    return td_->create_handler<SearchCallMessagesQuery>(std::move(promise))->send(offset_message_id, limit, filter);
-  }
-
-  promise.set_value(get_found_messages_object(found_messages, "on_message_db_calls_result"));
-}
-
-void MessagesManager::get_dialog_message_by_date(DialogId dialog_id, int32 date,
-                                                 Promise<td_api::object_ptr<td_api::message>> &&promise) {
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Read, "get_dialog_message_by_date"));
-
-  if (date <= 0) {
-    date = 1;
-  }
-
-  auto message_id = d->ordered_messages.find_message_by_date(date, get_get_message_date(d));
-  if (message_id.is_valid() &&
-      (message_id == d->last_message_id || (*d->ordered_messages.get_const_iterator(message_id))->have_next())) {
-    return promise.set_value(get_message_object(d, message_id, "get_dialog_message_by_date"));
-  }
-
-  if (G()->use_message_database() && d->last_database_message_id != MessageId()) {
-    CHECK(d->first_database_message_id != MessageId());
-    G()->td_db()->get_message_db_async()->get_dialog_message_by_date(
-        dialog_id, d->first_database_message_id, d->last_database_message_id, date,
-        PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, date,
-                                promise = std::move(promise)](Result<MessageDbDialogMessage> result) mutable {
-          send_closure(actor_id, &MessagesManager::on_get_dialog_message_by_date_from_database, dialog_id, date,
-                       std::move(result), std::move(promise));
-        }));
-  } else {
-    get_dialog_message_by_date_from_server(d, date, false, std::move(promise));
-  }
-}
-
-std::function<int32(MessageId)> MessagesManager::get_get_message_date(const Dialog *d) const {
-  return [d](MessageId message_id) {
-    const auto *m = get_message_static(d, message_id);
-    CHECK(m != nullptr);
-    return m->date;
-  };
-}
-
-void MessagesManager::on_get_dialog_message_by_date_from_database(
-    DialogId dialog_id, int32 date, Result<MessageDbDialogMessage> result,
-    Promise<td_api::object_ptr<td_api::message>> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (result.is_ok()) {
-    Message *m = on_get_message_from_database(d, result.ok(), false, "on_get_dialog_message_by_date_from_database");
-    if (m != nullptr) {
-      auto message_id = d->ordered_messages.find_message_by_date(date, get_get_message_date(d));
-      if (!message_id.is_valid()) {
-        LOG(ERROR) << "Failed to find " << m->message_id << " in " << dialog_id << " by date " << date;
-        message_id = m->message_id;
-      }
-      promise.set_value(get_message_object(d, message_id, "on_get_dialog_message_by_date_from_database"));
-      return;
-    }
-    // TODO if m == nullptr, we need to just adjust it to the next non-nullptr message, not get from server
-  }
-
-  return get_dialog_message_by_date_from_server(d, date, true, std::move(promise));
-}
-
-void MessagesManager::get_dialog_message_by_date_from_server(const Dialog *d, int32 date, bool after_database_search,
-                                                             Promise<td_api::object_ptr<td_api::message>> &&promise) {
-  CHECK(d != nullptr);
-  if (d->have_full_history) {
-    // request can always be done locally/in memory. There is no need to send request to the server
-    if (after_database_search) {
-      return promise.set_value(nullptr);
-    }
-
-    auto message_id = d->ordered_messages.find_message_by_date(date, get_get_message_date(d));
-    if (message_id.is_valid()) {
-      promise.set_value(get_message_object(d, message_id, "get_dialog_message_by_date_from_server"));
-    } else {
-      promise.set_value(nullptr);
-    }
-    return;
-  }
-  CHECK(d->dialog_id.get_type() != DialogType::SecretChat);
-
-  td_->create_handler<GetDialogMessageByDateQuery>(std::move(promise))->send(d->dialog_id, date);
-}
-
-void MessagesManager::on_get_dialog_message_by_date(DialogId dialog_id, int32 date,
-                                                    vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-                                                    Promise<td_api::object_ptr<td_api::message>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  for (auto &message : messages) {
-    auto message_date = get_message_date(message);
-    auto message_dialog_id = DialogId::get_message_dialog_id(message);
-    if (message_dialog_id != dialog_id) {
-      LOG(ERROR) << "Receive message in wrong " << message_dialog_id << " instead of " << dialog_id;
-      continue;
-    }
-    if (message_date != 0 && message_date <= date) {
-      auto result = on_get_message(std::move(message), false, dialog_id.get_type() == DialogType::Channel, false,
-                                   "on_get_dialog_message_by_date_success");
-      if (result != MessageFullId()) {
-        const Dialog *d = get_dialog(dialog_id);
-        CHECK(d != nullptr);
-        auto message_id = d->ordered_messages.find_message_by_date(date, get_get_message_date(d));
-        if (!message_id.is_valid()) {
-          LOG(ERROR) << "Failed to find " << result.get_message_id() << " in " << dialog_id << " by date " << date;
-          message_id = result.get_message_id();
-        }
-        return promise.set_value(get_message_object(d, message_id, "on_get_dialog_message_by_date"));
-      }
-    }
-  }
-  promise.set_value(nullptr);
-}
-
-void MessagesManager::get_dialog_sparse_message_positions(
-    DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, MessageSearchFilter filter,
-    MessageId from_message_id, int32 limit, Promise<td_api::object_ptr<td_api::messagePositions>> &&promise) {
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Read, "get_dialog_sparse_message_positions"));
-  if (limit < 50 || limit > 2000) {  // server-side limits
-    return promise.set_error(Status::Error(400, "Invalid limit specified"));
-  }
-
-  CHECK(filter != MessageSearchFilter::Call && filter != MessageSearchFilter::MissedCall);
-  if (filter == MessageSearchFilter::Empty || filter == MessageSearchFilter::Mention ||
-      filter == MessageSearchFilter::UnreadMention || filter == MessageSearchFilter::UnreadReaction ||
-      filter == MessageSearchFilter::Pinned) {
-    return promise.set_error(Status::Error(400, "The filter is not supported"));
-  }
-
-  if (from_message_id.is_scheduled()) {
-    return promise.set_error(Status::Error(400, "Invalid from_message_id specified"));
-  }
-  if (!from_message_id.is_valid() || from_message_id > d->last_new_message_id) {
-    if (d->last_new_message_id.is_valid()) {
-      from_message_id = d->last_new_message_id.get_next_message_id(MessageType::Server);
-    } else {
-      from_message_id = MessageId::max();
-    }
-  } else {
-    from_message_id = from_message_id.get_next_server_message_id();
-  }
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_in(td_, dialog_id));
-
-  if (filter == MessageSearchFilter::FailedToSend || dialog_id.get_type() == DialogType::SecretChat) {
-    if (saved_messages_topic_id.is_valid()) {
-      return promise.set_value(td_api::make_object<td_api::messagePositions>());
-    }
-    if (!G()->use_message_database()) {
-      return promise.set_error(Status::Error(400, "Unsupported without message database"));
-    }
-
-    LOG(INFO) << "Get sparse message positions from database";
-    auto new_promise =
-        PromiseCreator::lambda([promise = std::move(promise)](Result<MessageDbMessagePositions> result) mutable {
-          TRY_STATUS_PROMISE(promise, G()->close_status());
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-
-          auto positions = result.move_as_ok();
-          promise.set_value(td_api::make_object<td_api::messagePositions>(
-              positions.total_count, transform(positions.positions, [](const MessageDbMessagePosition &position) {
-                return td_api::make_object<td_api::messagePosition>(position.position, position.message_id.get(),
-                                                                    position.date);
-              })));
-        });
-    MessageDbGetDialogSparseMessagePositionsQuery db_query;
-    db_query.dialog_id = dialog_id;
-    db_query.filter = filter;
-    db_query.from_message_id = from_message_id;
-    db_query.limit = limit;
-    G()->td_db()->get_message_db_async()->get_dialog_sparse_message_positions(db_query, std::move(new_promise));
-    return;
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      td_->create_handler<GetSearchResultPositionsQuery>(std::move(promise))
-          ->send(dialog_id, saved_messages_topic_id, filter, from_message_id, limit);
-      break;
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void MessagesManager::on_get_dialog_sparse_message_positions(
-    DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, MessageSearchFilter filter,
-    telegram_api::object_ptr<telegram_api::messages_searchResultsPositions> positions,
-    Promise<td_api::object_ptr<td_api::messagePositions>> &&promise) {
-  auto message_positions = transform(
-      positions->positions_, [](const telegram_api::object_ptr<telegram_api::searchResultPosition> &position) {
-        return td_api::make_object<td_api::messagePosition>(
-            position->offset_, MessageId(ServerMessageId(position->msg_id_)).get(), position->date_);
-      });
-  promise.set_value(td_api::make_object<td_api::messagePositions>(positions->count_, std::move(message_positions)));
-}
-
-void MessagesManager::get_dialog_message_count(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                               MessageSearchFilter filter, bool return_local,
-                                               Promise<int32> &&promise) {
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "get_dialog_message_count"));
-
-  if (filter == MessageSearchFilter::Empty) {
-    return promise.set_error(Status::Error(400, "Can't use searchMessagesFilterEmpty"));
-  }
-
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_in(td_, dialog_id));
-  if (saved_messages_topic_id.is_valid()) {
-    if (filter == MessageSearchFilter::UnreadMention || filter == MessageSearchFilter::UnreadReaction ||
-        filter == MessageSearchFilter::FailedToSend) {
-      return promise.set_value(static_cast<int32>(0));
-    }
-    if (return_local) {
-      return promise.set_value(static_cast<int32>(-1));
-    }
-  } else {
-    auto dialog_type = dialog_id.get_type();
-    int32 message_count = d->message_count_by_index[message_search_filter_index(filter)];
-    if (message_count == -1 && filter == MessageSearchFilter::UnreadMention) {
-      message_count = d->unread_mention_count;
-    }
-    if (message_count == -1 && filter == MessageSearchFilter::UnreadReaction) {
-      message_count = d->unread_reaction_count;
-    }
-    if (message_count != -1 || return_local || dialog_type == DialogType::SecretChat ||
-        filter == MessageSearchFilter::FailedToSend) {
-      return promise.set_value(std::move(message_count));
-    }
-  }
-
-  get_dialog_message_count_from_server(dialog_id, saved_messages_topic_id, filter, std::move(promise));
-}
-
-void MessagesManager::get_dialog_message_count_from_server(DialogId dialog_id,
-                                                           SavedMessagesTopicId saved_messages_topic_id,
-                                                           MessageSearchFilter filter, Promise<int32> &&promise) {
-  LOG(INFO) << "Get number of messages in " << dialog_id << " with " << saved_messages_topic_id << " filtered by "
-            << filter << " from the server";
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-    case DialogType::Channel:
-      td_->create_handler<GetSearchCountersQuery>(std::move(promise))->send(dialog_id, saved_messages_topic_id, filter);
-      break;
-    case DialogType::None:
-    case DialogType::SecretChat:
-    default:
-      UNREACHABLE();
-  }
-}
-
-void MessagesManager::get_dialog_message_position(MessageFullId message_full_id, MessageSearchFilter filter,
-                                                  MessageId top_thread_message_id,
-                                                  SavedMessagesTopicId saved_messages_topic_id,
-                                                  Promise<int32> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, false, AccessRights::Read, "get_dialog_message_position"));
-
-  auto message_id = message_full_id.get_message_id();
-  const Message *m = get_message_force(d, message_id, "get_dialog_message_position");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!m->message_id.is_valid() || !m->message_id.is_server() ||
-      (filter != MessageSearchFilter::Empty &&
-       (get_message_index_mask(d->dialog_id, m) & message_search_filter_index_mask(filter)) == 0)) {
-    return promise.set_error(Status::Error(400, "Message can't be found in the filter"));
-  }
-
-  if (top_thread_message_id != MessageId()) {
-    if (!top_thread_message_id.is_valid() || !top_thread_message_id.is_server()) {
-      return promise.set_error(Status::Error(400, "Invalid message thread identifier specified"));
-    }
-    if (dialog_id.get_type() != DialogType::Channel || td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-      return promise.set_error(Status::Error(400, "Can't filter by message thread identifier in the chat"));
-    }
-    if (m->top_thread_message_id != top_thread_message_id ||
-        (m->message_id == top_thread_message_id && !m->is_topic_message)) {
-      return promise.set_error(Status::Error(400, "Message doesn't belong to the message thread"));
-    }
-  }
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_in(td_, dialog_id));
-
-  td_->message_query_manager_->get_dialog_message_position_from_server(
-      dialog_id, message_id, filter, top_thread_message_id, saved_messages_topic_id, std::move(promise));
-}
-
-void MessagesManager::preload_newer_messages(const Dialog *d, MessageId max_message_id) {
-  CHECK(d != nullptr);
-  CHECK(max_message_id.is_valid());
-  CHECK(!td_->auth_manager_->is_bot());
-
-  auto it = d->ordered_messages.get_const_iterator(max_message_id);
-  int32 limit = MAX_GET_HISTORY * 3 / 10;
-  while (*it != nullptr && limit-- > 0) {
-    ++it;
-    if (*it) {
-      max_message_id = (*it)->get_message_id();
-    }
-  }
-  if (limit > 0 && (d->last_message_id == MessageId() || max_message_id < d->last_message_id)) {
-    // need to preload some new messages
-    LOG(INFO) << "Preloading newer after " << max_message_id;
-    load_messages_impl(d, max_message_id, -MAX_GET_HISTORY + 1, MAX_GET_HISTORY, 3, false, Promise<Unit>());
-  }
-}
-
-void MessagesManager::preload_older_messages(const Dialog *d, MessageId min_message_id) {
-  CHECK(d != nullptr);
-  CHECK(min_message_id.is_valid());
-  CHECK(!td_->auth_manager_->is_bot());
-
-  /*
-    if (d->first_remote_message_id == -1) {
-      // nothing left to preload from server
-      return;
-    }
-  */
-  auto it = d->ordered_messages.get_const_iterator(min_message_id);
-  int32 limit = MAX_GET_HISTORY * 3 / 10 + 1;
-  while (*it != nullptr && limit-- > 0) {
-    min_message_id = (*it)->get_message_id();
-    --it;
-  }
-  if (limit > 0) {
-    // need to preload some old messages
-    LOG(INFO) << "Preloading older before " << min_message_id;
-    load_messages_impl(d, min_message_id, 0, MAX_GET_HISTORY / 2, 3, false, Promise<Unit>());
-  }
-}
-
-unique_ptr<MessagesManager::Message> MessagesManager::parse_message(Dialog *d, MessageId expected_message_id,
-                                                                    const BufferSlice &value, bool is_scheduled) {
-  CHECK(d != nullptr);
-  auto dialog_id = d->dialog_id;
-  auto message = make_unique<Message>();
-  auto *m = message.get();
-
-  auto status = log_event_parse(*m, value.as_slice());
-  bool is_message_id_valid = [&] {
-    if (is_scheduled) {
-      if (!expected_message_id.is_valid_scheduled()) {
-        return false;
-      }
-      if (m->message_id == expected_message_id) {
-        return true;
-      }
-      return m->message_id.is_valid_scheduled() && expected_message_id.is_scheduled_server() &&
-             m->message_id.is_scheduled_server() &&
-             m->message_id.get_scheduled_server_message_id() == expected_message_id.get_scheduled_server_message_id();
-    } else {
-      if (!expected_message_id.is_valid()) {
-        return false;
-      }
-      return m->message_id == expected_message_id;
-    }
-  }();
-  if (status.is_error() || !is_message_id_valid) {
-    // can't happen unless the database is broken, but has been seen in the wild
-    LOG(ERROR) << "Receive invalid message from database: " << expected_message_id << ' ' << m->message_id << ' '
-               << status << ' ' << format::as_hex_dump<4>(value.as_slice());
-    if (!is_scheduled && dialog_id.get_type() != DialogType::SecretChat) {
-      // trying to repair the message
-      if (expected_message_id.is_valid() && expected_message_id.is_server()) {
-        get_message_from_server({dialog_id, expected_message_id}, Auto(), "parse_message");
-      }
-      if (m->message_id.is_valid() && m->message_id.is_server()) {
-        get_message_from_server({dialog_id, m->message_id}, Auto(), "parse_message");
-      }
-    }
-    return nullptr;
-  }
-  if (m->reactions != nullptr) {
-    if (td_->auth_manager_->is_bot() || m->available_reactions_generation < d->available_reactions_generation) {
-      m->reactions = nullptr;
-      m->available_reactions_generation = 0;
-    } else if (m->available_reactions_generation > d->available_reactions_generation &&
-               m->available_reactions_generation - d->available_reactions_generation < 1000000000) {
-      switch (dialog_id.get_type()) {
-        case DialogType::Chat:
-        case DialogType::Channel:
-          LOG(ERROR) << "Fix available_reactions_generation in " << dialog_id << " from "
-                     << d->available_reactions_generation << " to " << m->available_reactions_generation;
-          hide_dialog_message_reactions(d);
-          set_dialog_next_available_reactions_generation(d, m->available_reactions_generation);
-          on_dialog_updated(dialog_id, "parse_message");
-          break;
-        case DialogType::User:
-        case DialogType::SecretChat:
-        default:
-          LOG(ERROR) << "Receive available_reactions_generation = " << m->available_reactions_generation << " in "
-                     << m->message_id << " in " << dialog_id;
-          break;
-      }
-    }
-    if (m->reactions != nullptr) {
-      m->reactions->fix_my_recent_chooser_dialog_id(td_->dialog_manager_->get_my_dialog_id());
-    }
-  }
-  if (m->contains_mention && td_->auth_manager_->is_bot()) {
-    m->contains_mention = false;
-    m->contains_unread_mention = false;
-  }
-  if (m->history_generation > d->history_generation && m->history_generation - d->history_generation < 1000000000) {
-    switch (dialog_id.get_type()) {
-      case DialogType::Channel:
-        LOG(ERROR) << "Fix history_generation in " << dialog_id << " from " << d->history_generation << " to "
-                   << m->history_generation;
-        d->history_generation = m->history_generation + 1;
-        on_dialog_updated(dialog_id, "parse_message");
-        break;
-      case DialogType::Chat:
-      case DialogType::User:
-      case DialogType::SecretChat:
-      default:
-        LOG(ERROR) << "Receive history_generation = " << m->history_generation << " in " << m->message_id << " in "
-                   << dialog_id;
-        break;
-    }
-  }
-  if (m->is_pinned && is_scheduled) {
-    m->is_pinned = false;
-  }
-  if (dialog_id == td_->dialog_manager_->get_my_dialog_id() && !m->saved_messages_topic_id.is_valid()) {
-    m->saved_messages_topic_id = SavedMessagesTopicId(dialog_id, m->forward_info.get(), m->real_forward_from_dialog_id);
-  }
-
-  LOG(INFO) << "Loaded " << m->message_id << " in " << dialog_id << " of size " << value.size() << " from database";
-  return message;
-}
-
-void MessagesManager::on_get_history_from_database(DialogId dialog_id, MessageId from_message_id,
-                                                   MessageId old_last_database_message_id, int32 offset, int32 limit,
-                                                   bool only_local, vector<MessageDbDialogMessage> &&messages,
-                                                   Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  bool from_the_end = from_message_id == MessageId::max();
-  CHECK(-limit < offset && offset <= 0);
-  CHECK(offset < 0 || from_the_end);
-  CHECK(!from_message_id.is_scheduled());
-
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  if (old_last_database_message_id < d->last_database_message_id && old_last_database_message_id < from_message_id) {
-    // new messages where added to the database since the request was sent
-    // they should have been received from the database, so we must repeat the request to get them
-    LOG(INFO) << "Reget chat history from database in " << dialog_id
-              << ", because last database message was changed from " << old_last_database_message_id << " to "
-              << d->last_database_message_id;
-    get_history_impl(d, from_message_id, offset, limit, true, only_local, std::move(promise),
-                     "on_get_history_from_database 20");
-    return;
-  }
-
-  LOG(INFO) << "Receive " << messages.size() << " history messages from database "
-            << (from_the_end ? "from the end " : "") << "in " << dialog_id << " from " << from_message_id
-            << " with offset " << offset << " and limit " << limit << ". First database message is "
-            << d->first_database_message_id << ", last database message is " << d->last_database_message_id
-            << ", have_full_history = " << d->have_full_history
-            << ", have_full_history_source = " << d->have_full_history_source;
-
-  bool had_full_history = d->have_full_history;
-  auto debug_first_database_message_id = d->first_database_message_id;
-  auto debug_last_message_id = d->last_message_id;
-  auto debug_last_new_message_id = d->last_new_message_id;
-
-  bool have_error = false;
-  auto message_ids = on_get_messages_from_database(
-      d, std::move(messages), d->have_full_history ? MessageId::min() : d->first_database_message_id, have_error,
-      "on_get_history_from_database");
-  if (have_error) {
-    // database is broken
-    message_ids.clear();  // ignore received messages just in case
-    if (d->have_full_history) {
-      d->have_full_history = false;
-      d->have_full_history_source = 0;
-      d->is_empty = false;  // just in case
-      on_dialog_updated(dialog_id, "drop have_full_history in on_get_history_from_database");
-    }
-  }
-
-  vector<bool> is_added_to_dialog;
-  for (auto &message_id : message_ids) {
-    Message *m = get_message(d, message_id);
-    is_added_to_dialog.push_back(m != nullptr);
-  }
-
-  bool have_next = false;
-  MessageId first_added_message_id;
-  MessageId last_added_message_id;
-  MessageId next_message_id;
-  auto first_received_message_id = MessageId::max();
-  MessageId last_received_message_id;
-  for (size_t pos = 0; pos < message_ids.size(); pos++) {
-    auto message_id = message_ids[pos];
-    bool is_added = is_added_to_dialog[pos];
-    first_received_message_id = message_id;
-    if (!last_received_message_id.is_valid()) {
-      last_received_message_id = message_id;
-    }
-
-    if (!have_next && (from_the_end || (pos == 0 && offset < -1 && message_id <= from_message_id)) &&
-        message_id < d->last_message_id) {
-      // last message in the dialog must be attached to the next local message
-      have_next = true;
-    }
-
-    if (is_added) {
-      if (have_next) {
-        d->ordered_messages.attach_message_to_next(message_id, "on_get_history_from_database");
-      }
-      first_added_message_id = message_id;
-      if (!last_added_message_id.is_valid()) {
-        last_added_message_id = message_id;
-      }
-      if (next_message_id.is_valid()) {
-        CHECK(message_id < next_message_id);
-        d->ordered_messages.attach_message_to_previous(
-            next_message_id, (PSLICE() << "on_get_history_from_database 1 " << message_id << ' ' << from_message_id
-                                       << ' ' << offset << ' ' << limit << ' ' << d->first_database_message_id << ' '
-                                       << d->have_full_history << ' ' << pos)
-                                 .c_str());
-      }
-
-      have_next = true;
-      next_message_id = message_id;
-    }
-  }
-
-  if (from_the_end && messages.empty() && d->ordered_messages.empty()) {
-    if (d->have_full_history) {
-      set_dialog_is_empty(d, "on_get_history_from_database empty");
-    } else if (d->last_database_message_id.is_valid()) {
-      set_dialog_first_database_message_id(d, MessageId(), "on_get_history_from_database empty");
-      set_dialog_last_database_message_id(d, MessageId(), "on_get_history_from_database empty");
-    }
-  }
-
-  if (from_the_end && !last_added_message_id.is_valid() && d->first_database_message_id.is_valid() &&
-      !d->have_full_history) {
-    if (first_received_message_id <= d->first_database_message_id) {
-      // database definitely has no messages from first_database_message_id to last_database_message_id; drop them
-      set_dialog_first_database_message_id(d, MessageId(), "on_get_history_from_database 8");
-      set_dialog_last_database_message_id(d, MessageId(), "on_get_history_from_database 9");
-    } else {
-      CHECK(first_received_message_id.is_valid());
-      // if a message was received, but wasn't added, then it is likely to be already deleted
-      // if it is less than d->last_database_message_id, then we can adjust d->last_database_message_id and
-      // try again database search without chance to loop
-      if (first_received_message_id < d->last_database_message_id) {
-        set_dialog_last_database_message_id(d, first_received_message_id, "on_get_history_from_database 12");
-
-        get_history_impl(d, MessageId::max(), 0, -1, true, only_local, std::move(promise),
-                         "on_get_history_from_database 21");
-        return;
-      }
-
-      if (limit > 1) {
-        // we expected to have messages [first_database_message_id, last_database_message_id] in the database, but
-        // received messages [first_received_message_id, last_received_message_id], none of which can be added
-        // first_database_message_id and last_database_message_id are very wrong, so it is better to drop them,
-        // pretending that the database has no usable messages
-        if (!is_deleted_message(d, d->first_database_message_id) ||
-            !is_deleted_message(d, d->last_database_message_id)) {
-          if (first_received_message_id == MessageId::max()) {
-            CHECK(last_received_message_id == MessageId());
-            LOG(ERROR) << "Receive no usable messages in " << dialog_id
-                       << " from database from the end, but expected messages from " << d->first_database_message_id
-                       << " up to " << d->last_database_message_id
-                       << ". Have old last_database_message_id = " << old_last_database_message_id << " and "
-                       << messages.size() << " received messages";
-          } else {
-            LOG(ERROR) << "Receive " << messages.size() << " unusable messages [" << first_received_message_id
-                       << " ... " << last_received_message_id << "] in " << dialog_id
-                       << " from database from the end, but expected messages from " << d->first_database_message_id
-                       << " up to " << d->last_database_message_id;
-          }
-        }
-        set_dialog_first_database_message_id(d, MessageId(), "on_get_history_from_database 13");
-        set_dialog_last_database_message_id(d, MessageId(), "on_get_history_from_database 14");
-      }
-    }
-  }
-
-  if (!first_added_message_id.is_valid() && !only_local && dialog_id.get_type() != DialogType::SecretChat) {
-    load_messages_impl(d, from_message_id, offset, limit, 1, false, std::move(promise));
-    return;
-  }
-
-  bool need_update_dialog_pos = false;
-  if (from_the_end && last_added_message_id.is_valid()) {
-    CHECK(next_message_id.is_valid());
-    // CHECK(d->first_database_message_id.is_valid());
-    // CHECK(last_added_message_id >= d->first_database_message_id);
-    if ((had_full_history || d->have_full_history) && !d->last_new_message_id.is_valid() &&
-        (last_added_message_id.is_server() || d->dialog_id.get_type() == DialogType::SecretChat)) {
-      LOG(ERROR) << "Trying to hard fix " << d->dialog_id << " last new message to " << last_added_message_id
-                 << " from on_get_history_from_database 2";
-      d->last_new_message_id = last_added_message_id;
-      on_dialog_updated(d->dialog_id, "on_get_history_from_database 3");
-    }
-    if (last_added_message_id > d->last_message_id && d->last_new_message_id.is_valid()) {
-      set_dialog_last_message_id(d, last_added_message_id, "on_get_history_from_database 4");
-      need_update_dialog_pos = true;
-    }
-    if (last_added_message_id != d->last_database_message_id && d->last_new_message_id.is_valid()) {
-      auto debug_last_database_message_id = d->last_database_message_id;
-      auto debug_set_dialog_last_database_message_id = d->debug_set_dialog_last_database_message_id;
-      if (!d->first_database_message_id.is_valid() && !d->last_database_message_id.is_valid()) {
-        set_dialog_first_database_message_id(d, next_message_id, "on_get_history_from_database 5");
-      }
-      set_dialog_last_database_message_id(d, last_added_message_id, "on_get_history_from_database 5");
-      if (last_added_message_id < d->first_database_message_id || !d->first_database_message_id.is_valid()) {
-        LOG_CHECK(had_full_history || d->have_full_history)
-            << had_full_history << ' ' << d->have_full_history << ' ' << next_message_id << ' ' << last_added_message_id
-            << ' ' << d->first_database_message_id << ' ' << debug_first_database_message_id << ' '
-            << d->last_database_message_id << ' ' << debug_last_database_message_id << ' ' << dialog_id << ' '
-            << d->last_new_message_id << ' ' << debug_last_new_message_id << ' ' << d->last_message_id << ' '
-            << debug_last_message_id << ' ' << debug_set_dialog_last_database_message_id << ' '
-            << d->debug_set_dialog_last_database_message_id << ' ' << first_received_message_id << ' '
-            << last_received_message_id << ' ' << d->debug_first_database_message_id << ' '
-            << d->debug_last_database_message_id << ' ' << d->debug_last_new_message_id << ' '
-            << d->have_full_history_source;
-        CHECK(next_message_id <= d->last_database_message_id);
-        LOG(ERROR) << "Fix first database message in " << dialog_id << " from " << d->first_database_message_id
-                   << " to " << next_message_id;
-        set_dialog_first_database_message_id(d, next_message_id, "on_get_history_from_database 6");
-      }
-    }
-  }
-  if (first_added_message_id.is_valid() && first_added_message_id != d->first_database_message_id &&
-      first_received_message_id < d->first_database_message_id && d->last_new_message_id.is_valid() &&
-      !d->have_full_history) {
-    CHECK(first_added_message_id > d->first_database_message_id);
-    set_dialog_first_database_message_id(d, first_added_message_id, "on_get_history_from_database 10");
-    if (d->last_database_message_id < d->first_database_message_id) {
-      set_dialog_last_database_message_id(d, d->first_database_message_id, "on_get_history_from_database 11");
-    }
-  }
-
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, "on_get_history_from_database 7");
-  }
-
-  promise.set_value(Unit());
-}
-
-void MessagesManager::load_last_dialog_message_later(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  load_last_dialog_message(get_dialog(dialog_id), "load_last_dialog_message");
-}
-
-void MessagesManager::load_last_dialog_message(const Dialog *d, const char *source) {
-  get_history_impl(d, MessageId::max(), 0, -1, true, false, Promise<Unit>(), source);
-}
-
-void MessagesManager::on_get_history_finished(const PendingGetHistoryQuery &query, Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto it = get_history_queries_.find(query);
-  if (it == get_history_queries_.end()) {
-    return;
-  }
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  get_history_queries_.erase(it);
-
-  if (result.is_ok()) {
-    set_promises(promises);
-  } else {
-    fail_promises(promises, result.move_as_error());
-  }
-}
-
-void MessagesManager::get_history_impl(const Dialog *d, MessageId from_message_id, int32 offset, int32 limit,
-                                       bool from_database, bool only_local, Promise<Unit> &&promise,
-                                       const char *source) {
-  CHECK(d != nullptr);
-  bool from_the_end = from_message_id == MessageId() || from_message_id == MessageId::max();
-  if (!from_the_end) {
-    CHECK(from_message_id.is_valid());
-  } else {
-    from_message_id = MessageId::max();
-  }
-
-  auto dialog_id = d->dialog_id;
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    // can't get history in dialogs without read access
-    return promise.set_value(Unit());
-  }
-  if ((!d->first_database_message_id.is_valid() || from_message_id <= d->first_database_message_id) &&
-      !d->have_full_history) {
-    from_database = false;
-  }
-  if (!G()->use_message_database()) {
-    from_database = false;
-  }
-
-  if (from_the_end) {
-    // load only 10 messages when repairing the last message and can't save the result to the database
-    limit = !promise && (from_database || !G()->use_message_database()) ? max(limit, 10) : MAX_GET_HISTORY;
-    offset = 0;
-  } else if (offset >= -1) {
-    // get history before some server or local message
-    limit = clamp(limit + offset + 1, MAX_GET_HISTORY / 2, MAX_GET_HISTORY);
-    offset = -1;
-  } else {
-    // get history around some server or local message
-    int32 messages_to_load = max(MAX_GET_HISTORY, limit);
-    int32 max_add = max(messages_to_load - limit - 2, 0);
-    offset -= max_add;
-    limit = MAX_GET_HISTORY;
-  }
-
-  PendingGetHistoryQuery query;
-  query.dialog_id_ = dialog_id;
-  query.from_message_id_ = from_message_id;
-  query.offset_ = offset;
-  query.limit_ = limit;
-  query.from_database_ = from_database;
-  query.only_local_ = only_local;
-
-  if (from_database) {
-    LOG(INFO) << "Get history in " << dialog_id << " from " << from_message_id << " with offset " << offset
-              << " and limit " << limit << " from database from " << source;
-
-    query.old_last_message_id_ = d->last_database_message_id;
-
-    auto &promises = get_history_queries_[query];
-    promises.push_back(std::move(promise));
-    if (promises.size() != 1) {
-      // query has already been sent, just wait for the result
-      return;
-    }
-
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), query](Result<Unit> &&result) {
-      send_closure(actor_id, &MessagesManager::on_get_history_finished, query, std::move(result));
-    });
-
-    MessageDbMessagesQuery db_query;
-    db_query.dialog_id = dialog_id;
-    db_query.from_message_id = from_message_id;
-    db_query.offset = offset;
-    db_query.limit = limit;
-    G()->td_db()->get_message_db_async()->get_messages(
-        db_query,
-        PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, from_message_id,
-                                old_last_database_message_id = d->last_database_message_id, offset, limit, only_local,
-                                promise = std::move(query_promise)](vector<MessageDbDialogMessage> messages) mutable {
-          send_closure(actor_id, &MessagesManager::on_get_history_from_database, dialog_id, from_message_id,
-                       old_last_database_message_id, offset, limit, only_local, std::move(messages),
-                       std::move(promise));
-        }));
-  } else {
-    if (only_local || dialog_id.get_type() == DialogType::SecretChat ||
-        (from_the_end && d->last_message_id.is_valid())) {
-      // if the last message is known, there are no reasons to get message history from server from the end
-      return promise.set_value(Unit());
-    }
-
-    query.old_last_message_id_ = d->last_new_message_id;
-
-    auto &promises = get_history_queries_[query];
-    promises.push_back(std::move(promise));
-    if (promises.size() != 1) {
-      // query has already been sent, just wait for the result
-      return;
-    }
-
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), query](Result<Unit> &&result) {
-      send_closure(actor_id, &MessagesManager::on_get_history_finished, query, std::move(result));
-    });
-
-    if (from_the_end) {
-      LOG(INFO) << "Get history from the end of " << dialog_id << " from server from " << source;
-      td_->create_handler<GetHistoryQuery>(std::move(query_promise))
-          ->send_get_from_the_end(dialog_id, d->last_new_message_id, limit);
-    } else {
-      LOG(INFO) << "Get history in " << dialog_id << " from " << from_message_id << " with offset " << offset
-                << " and limit " << limit << " from server from " << source;
-      td_->create_handler<GetHistoryQuery>(std::move(query_promise))
-          ->send(dialog_id, from_message_id.get_next_server_message_id(), d->last_new_message_id, offset, limit);
-    }
-  }
-}
-
-void MessagesManager::load_messages(DialogId dialog_id, MessageId from_message_id, int32 offset, int32 limit,
-                                    int left_tries, bool only_local, Promise<Unit> &&promise) {
-  load_messages_impl(get_dialog(dialog_id), from_message_id, offset, limit, left_tries, only_local, std::move(promise));
-}
-
-void MessagesManager::load_messages_impl(const Dialog *d, MessageId from_message_id, int32 offset, int32 limit,
-                                         int left_tries, bool only_local, Promise<Unit> &&promise) {
-  CHECK(d != nullptr);
-  CHECK(offset <= 0);
-  CHECK(left_tries > 0);
-  auto dialog_id = d->dialog_id;
-  LOG(INFO) << "Load " << (only_local ? "local " : "") << "messages in " << dialog_id << " from " << from_message_id
-            << " with offset = " << offset << " and limit = " << limit << ". " << left_tries << " tries left";
-  only_local |= dialog_id.get_type() == DialogType::SecretChat;
-  if (!only_local && d->have_full_history) {
-    LOG(INFO) << "Have full history in " << dialog_id << ", so don't need to get chat history from server";
-    only_local = true;
-  }
-  bool from_database = (left_tries > 2 || only_local) && G()->use_message_database();
-  get_history_impl(d, from_message_id, offset, limit, from_database, only_local, std::move(promise),
-                   "load_messages_impl");
-}
-
-vector<MessageId> MessagesManager::get_dialog_scheduled_messages(DialogId dialog_id, bool force, bool ignore_result,
-                                                                 Promise<Unit> &&promise) {
-  if (G()->close_flag()) {
-    promise.set_error(Global::request_aborted_error());
-    return {};
-  }
-
-  LOG(INFO) << "Get scheduled messages in " << dialog_id;
-  Dialog *d = get_dialog_force(dialog_id, "get_dialog_scheduled_messages");
-  if (d == nullptr) {
-    promise.set_error(Status::Error(400, "Chat not found"));
-    return {};
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return {};
-  }
-  if (td_->dialog_manager_->is_broadcast_channel(dialog_id) &&
-      !td_->chat_manager_->get_channel_status(dialog_id.get_channel_id()).can_post_messages()) {
-    promise.set_error(Status::Error(400, "Not enough rights to get scheduled messages"));
-    return {};
-  }
-  if (d->dialog_id.get_type() == DialogType::SecretChat) {
-    promise.set_value(Unit());
-    return {};
-  }
-
-  if (!d->has_loaded_scheduled_messages_from_database) {
-    load_dialog_scheduled_messages(dialog_id, true, 0, std::move(promise));
-    return {};
-  }
-
-  vector<MessageId> message_ids;
-  if (d->scheduled_messages != nullptr) {
-    for (const auto &it : d->scheduled_messages->scheduled_messages_) {
-      message_ids.push_back(it.first);
-    };
-    std::sort(message_ids.begin(), message_ids.end(), std::greater<>());
-  }
-
-  if (G()->use_message_database()) {
-    bool has_scheduled_database_messages = false;
-    for (auto &message_id : message_ids) {
-      CHECK(message_id.is_valid_scheduled());
-      if (!message_id.is_yet_unsent()) {
-        has_scheduled_database_messages = true;
-        break;
-      }
-    }
-    set_dialog_has_scheduled_database_messages(d->dialog_id, has_scheduled_database_messages);
-  }
-
-  if (d->scheduled_messages_sync_generation != scheduled_messages_sync_generation_) {
-    vector<uint64> numbers;
-    for (auto &message_id : message_ids) {
-      if (!message_id.is_scheduled_server()) {
-        continue;
-      }
-
-      numbers.push_back(message_id.get_scheduled_server_message_id().get());
-      const Message *m = get_message(d, message_id);
-      CHECK(m != nullptr);
-      CHECK(m->message_id.get_scheduled_server_message_id() == message_id.get_scheduled_server_message_id());
-      numbers.push_back(m->edit_date);
-      numbers.push_back(m->date);
-    }
-    auto hash = get_vector_hash(numbers);
-
-    if (!force && (d->has_scheduled_server_messages ||
-                   (d->scheduled_messages_sync_generation == 0 && !G()->use_message_database()))) {
-      load_dialog_scheduled_messages(dialog_id, false, hash, std::move(promise));
-      return {};
-    }
-    load_dialog_scheduled_messages(dialog_id, false, hash, Promise<Unit>());
-  }
-
-  if (!ignore_result) {
-    d->sent_scheduled_messages = true;
-  }
-
-  promise.set_value(Unit());
-  return message_ids;
-}
-
-void MessagesManager::load_dialog_scheduled_messages(DialogId dialog_id, bool from_database, int64 hash,
-                                                     Promise<Unit> &&promise) {
-  CHECK(dialog_id.get_type() != DialogType::SecretChat);
-  if (G()->use_message_database() && from_database) {
-    LOG(INFO) << "Load scheduled messages from database in " << dialog_id;
-    auto &queries = load_scheduled_messages_from_database_queries_[dialog_id];
-    queries.push_back(std::move(promise));
-    if (queries.size() == 1) {
-      G()->td_db()->get_message_db_async()->get_scheduled_messages(
-          dialog_id, 1000,
-          PromiseCreator::lambda([actor_id = actor_id(this), dialog_id](vector<MessageDbDialogMessage> messages) {
-            send_closure(actor_id, &MessagesManager::on_get_scheduled_messages_from_database, dialog_id,
-                         std::move(messages));
-          }));
-    }
-  } else {
-    td_->create_handler<GetAllScheduledMessagesQuery>(std::move(promise))
-        ->send(dialog_id, hash, scheduled_messages_sync_generation_);
-  }
-}
-
-void MessagesManager::on_get_scheduled_messages_from_database(DialogId dialog_id,
-                                                              vector<MessageDbDialogMessage> &&messages) {
-  if (G()->close_flag()) {
-    auto it = load_scheduled_messages_from_database_queries_.find(dialog_id);
-    CHECK(it != load_scheduled_messages_from_database_queries_.end());
-    CHECK(!it->second.empty());
-    auto promises = std::move(it->second);
-    load_scheduled_messages_from_database_queries_.erase(it);
-
-    fail_promises(promises, Global::request_aborted_error());
-    return;
-  }
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  d->has_loaded_scheduled_messages_from_database = true;
-
-  LOG(INFO) << "Receive " << messages.size() << " scheduled messages from database in " << dialog_id;
-
-  Dependencies dependencies;
-  vector<MessageId> added_message_ids;
-  for (auto &message_slice : messages) {
-    auto message = parse_message(d, message_slice.message_id, message_slice.data, true);
-    if (message == nullptr) {
-      continue;
-    }
-
-    if (get_message(d, message->message_id) != nullptr) {
-      continue;
-    }
-
-    bool need_update = false;
-    Message *m = add_scheduled_message_to_dialog(d, std::move(message), true, false, &need_update,
-                                                 "on_get_scheduled_messages_from_database");
-    if (m != nullptr) {
-      add_message_dependencies(dependencies, m);
-      added_message_ids.push_back(m->message_id);
-    }
-  }
-  dependencies.resolve_force(td_, "on_get_scheduled_messages_from_database");
-
-  // for (auto message_id : added_message_ids) {
-  //   send_update_new_message(d, get_message(d, message_id));
-  // }
-  send_update_chat_has_scheduled_messages(d, false);
-
-  auto it = load_scheduled_messages_from_database_queries_.find(dialog_id);
-  CHECK(it != load_scheduled_messages_from_database_queries_.end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  load_scheduled_messages_from_database_queries_.erase(it);
-
-  set_promises(promises);
-}
-
-bool MessagesManager::can_add_message_tag(DialogId dialog_id, const MessageReactions *reactions) const {
-  return dialog_id == td_->dialog_manager_->get_my_dialog_id() &&
-         (reactions == nullptr || reactions->are_empty() || reactions->are_tags_);
-}
-
-Result<td_api::object_ptr<td_api::availableReactions>> MessagesManager::get_message_available_reactions(
-    MessageFullId message_full_id, int32 row_size) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "get_message_available_reactions"));
-
-  const Message *m = get_message_force(d, message_full_id.get_message_id(), "get_message_available_reactions");
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-
-  bool is_tag = can_add_message_tag(dialog_id, m->reactions.get());
-  ReactionUnavailabilityReason unavailability_reason = ReactionUnavailabilityReason::None;
-  auto available_reactions = get_message_available_reactions(d, m, false, &unavailability_reason);
-  return td_->reaction_manager_->get_sorted_available_reactions(
-      std::move(available_reactions), get_message_active_reactions(d, m), row_size, is_tag, unavailability_reason);
-}
-
-ChatReactions MessagesManager::get_message_available_reactions(const Dialog *d, const Message *m,
-                                                               bool disallow_custom_for_non_premium,
-                                                               ReactionUnavailabilityReason *unavailability_reason) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  auto active_reactions = get_message_active_reactions(d, m);
-  if (active_reactions.empty()) {
-    return {};
-  }
-
-  bool can_use_reactions = true;
-  if (d->dialog_id.get_type() == DialogType::Channel) {
-    auto channel_id = d->dialog_id.get_channel_id();
-    if (td_->chat_manager_->is_megagroup_channel(channel_id) &&
-        !td_->chat_manager_->get_channel_status(channel_id).is_member() && can_send_message(d->dialog_id).is_error()) {
-      // can't use reactions if can't send messages to the group without joining
-      if (unavailability_reason != nullptr) {
-        *unavailability_reason = ReactionUnavailabilityReason::Guest;
-      }
-      can_use_reactions = false;
-    } else if (td_->dialog_manager_->is_anonymous_administrator(d->dialog_id, nullptr) &&
-               !td_->dialog_manager_->is_broadcast_channel(d->dialog_id) &&
-               !td_->chat_manager_->get_channel_status(channel_id).is_creator() &&
-               get_my_reaction_dialog_id(d) == d->dialog_id) {
-      // only creator can react as the chat
-      if (unavailability_reason != nullptr) {
-        *unavailability_reason = ReactionUnavailabilityReason::AnonymousAdministrator;
-      }
-      can_use_reactions = false;
-    }
-  }
-
-  int64 reactions_uniq_max = td_->option_manager_->get_option_integer("reactions_uniq_max", 11);
-  if (0 < active_reactions.reactions_limit_ && active_reactions.reactions_limit_ < reactions_uniq_max) {
-    reactions_uniq_max = active_reactions.reactions_limit_;
-  }
-  bool can_add_new_reactions =
-      m->reactions == nullptr || m->reactions->get_non_paid_reaction_count() < reactions_uniq_max;
-
-  if (!can_use_reactions) {
-    active_reactions = ChatReactions();
-  } else if (!can_add_new_reactions) {
-    active_reactions.ignore_non_paid_reaction_types();
-  }
-
-  if (active_reactions.allow_all_regular_) {
-    if (can_add_message_tag(d->dialog_id, m->reactions.get())) {
-      auto default_tag_reactions = td_->reaction_manager_->get_default_tag_reactions();
-      active_reactions.reaction_types_ = default_tag_reactions;
-      if (td_->option_manager_->get_option_boolean("is_premium")) {
-        for (auto &reaction_type : active_reaction_types_) {
-          if (!td::contains(default_tag_reactions, reaction_type)) {
-            active_reactions.reaction_types_.push_back(reaction_type);
-          }
-        }
-      } else {
-        disallow_custom_for_non_premium = true;
-      }
-    } else {
-      active_reactions.reaction_types_ = active_reaction_types_;
-    }
-    active_reactions.allow_all_regular_ = false;
-  }
-  if (can_use_reactions && m->reactions != nullptr) {
-    for (const auto &reaction : m->reactions->reactions_) {
-      // an already used reaction can be added if it is an active reaction
-      const auto &reaction_type = reaction.get_reaction_type();
-      if (reaction_type.is_active_reaction(active_reaction_pos_) &&
-          !td::contains(active_reactions.reaction_types_, reaction_type)) {
-        active_reactions.reaction_types_.push_back(reaction_type);
-      }
-    }
-  }
-  if (disallow_custom_for_non_premium && !td_->option_manager_->get_option_boolean("is_premium")) {
-    active_reactions.allow_all_custom_ = false;
-  }
-  return active_reactions;
-}
-
-DialogId MessagesManager::get_my_reaction_dialog_id(const Dialog *d) const {
-  auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-  if (td_->dialog_manager_->is_broadcast_channel(d->dialog_id)) {
-    return my_dialog_id;
-  }
-  auto reaction_dialog_id =
-      d->default_send_message_as_dialog_id.is_valid() ? d->default_send_message_as_dialog_id : my_dialog_id;
-  if (reaction_dialog_id == my_dialog_id && td_->dialog_manager_->is_anonymous_administrator(d->dialog_id, nullptr)) {
-    // react as the supergroup
-    return d->dialog_id;
-  }
-  return reaction_dialog_id;
-}
-
-void MessagesManager::add_message_reaction(MessageFullId message_full_id, ReactionType reaction_type, bool is_big,
-                                           bool add_to_recent, Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "add_message_reaction"));
-
-  Message *m = get_message_force(d, message_full_id.get_message_id(), "add_message_reaction");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  if (!get_message_available_reactions(d, m, true, nullptr).is_allowed_reaction_type(reaction_type)) {
-    return promise.set_error(Status::Error(400, "The reaction isn't available for the message"));
-  }
-  if (reaction_type.is_paid_reaction()) {
-    return promise.set_error(Status::Error(400, "Use addPendingPaidMessageReaction instead to add the paid reaction"));
-  }
-
-  bool have_recent_choosers =
-      !td_->dialog_manager_->is_broadcast_channel(dialog_id) && !is_discussion_message(dialog_id, m);
-  if (m->reactions == nullptr) {
-    m->reactions = make_unique<MessageReactions>();
-    m->reactions->can_get_added_reactions_ = have_recent_choosers && dialog_id.get_type() != DialogType::User;
-    m->available_reactions_generation = d->available_reactions_generation;
-  }
-
-  LOG(INFO) << "Have message with " << *m->reactions;
-  bool is_tag = can_add_message_tag(dialog_id, m->reactions.get());
-  auto old_chosen_tags = get_chosen_tags(m->reactions);
-  if (!m->reactions->add_my_reaction(reaction_type, is_big, get_my_reaction_dialog_id(d), have_recent_choosers,
-                                     is_tag)) {
-    return promise.set_value(Unit());
-  }
-
-  set_message_reactions(d, m, is_big, add_to_recent, std::move(promise));
-
-  if (is_tag) {
-    td_->reaction_manager_->update_saved_messages_tags(m->saved_messages_topic_id, old_chosen_tags,
-                                                       get_chosen_tags(m->reactions));
-  } else if (add_to_recent) {
-    td_->reaction_manager_->add_recent_reaction(reaction_type);
-  }
-}
-
-void MessagesManager::remove_message_reaction(MessageFullId message_full_id, ReactionType reaction_type,
-                                              Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "remove_message_reaction"));
-
-  Message *m = get_message_force(d, message_full_id.get_message_id(), "remove_message_reaction");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  if (reaction_type.is_empty() || reaction_type.is_paid_reaction()) {
-    return promise.set_error(Status::Error(400, "Invalid reaction specified"));
-  }
-
-  if (m->reactions == nullptr) {
-    return promise.set_value(Unit());
-  }
-
-  LOG(INFO) << "Have message with " << *m->reactions;
-  auto old_chosen_tags = get_chosen_tags(m->reactions);
-  if (!m->reactions->remove_my_reaction(reaction_type, get_my_reaction_dialog_id(d))) {
-    return promise.set_value(Unit());
-  }
-
-  set_message_reactions(d, m, false, false, std::move(promise));
-
-  if (!old_chosen_tags.empty()) {
-    td_->reaction_manager_->update_saved_messages_tags(m->saved_messages_topic_id, old_chosen_tags,
-                                                       get_chosen_tags(m->reactions));
-  }
-}
-
-void MessagesManager::add_paid_message_reaction(MessageFullId message_full_id, int64 star_count,
-                                                const td_api::object_ptr<td_api::PaidReactionType> &type,
-                                                Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "add_paid_message_reaction"));
-
-  Message *m = get_message_force(d, message_full_id.get_message_id(), "add_paid_message_reaction");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!get_message_available_reactions(d, m, true, nullptr).is_allowed_reaction_type(ReactionType::paid()) ||
-      !td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return promise.set_error(Status::Error(400, "The reaction isn't available for the message"));
-  }
-  if (star_count <= 0 || star_count > td_->option_manager_->get_option_integer("paid_reaction_star_count_max")) {
-    return promise.set_error(Status::Error(400, "Invalid number of Telegram Stars specified"));
-  }
-  if (!td_->star_manager_->has_owned_star_count(star_count)) {
-    return promise.set_error(Status::Error(400, "Have not enough Telegram Stars"));
-  }
-
-  if (m->reactions == nullptr) {
-    m->reactions = make_unique<MessageReactions>();
-    m->available_reactions_generation = d->available_reactions_generation;
-  }
-
-  LOG(INFO) << "Have message with " << *m->reactions;
-  m->reactions->add_my_paid_reaction(td_, narrow_cast<int32>(star_count), type);
-  m->reactions->sort_reactions(active_reaction_pos_);
-  LOG(INFO) << "Update message reactions to " << *m->reactions;
-
-  send_update_message_interaction_info(d->dialog_id, m);
-  on_message_changed(d, m, true, "add_paid_message_reaction");
-
-  promise.set_value(Unit());
-}
-
-void MessagesManager::drop_message_pending_paid_reactions(const Dialog *d, Message *m) {
-  m->reactions->drop_pending_paid_reactions(td_);
-  send_update_message_interaction_info(d->dialog_id, m);
-  on_message_changed(d, m, true, "drop_message_pending_paid_reactions");
-}
-
-void MessagesManager::commit_paid_message_reactions(MessageFullId message_full_id, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(
-      promise, d,
-      check_dialog_access(message_full_id.get_dialog_id(), false, AccessRights::Read, "commit_paid_message_reactions"));
-  auto *m = get_message_force(d, message_full_id.get_message_id(), "commit_paid_message_reactions");
-  if (m == nullptr || m->reactions == nullptr || !m->reactions->has_pending_paid_reactions()) {
-    return promise.set_value(Unit());
-  }
-  if (!get_message_available_reactions(d, m, true, nullptr).is_allowed_reaction_type(ReactionType::paid())) {
-    drop_message_pending_paid_reactions(d, m);
-    return promise.set_value(Unit());
-  }
-
-  pending_reactions_[message_full_id].query_count++;
-
-  int64 random_id = (static_cast<int64>(G()->unix_time()) << 32) | static_cast<int64>(Random::secure_uint32());
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), message_full_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        send_closure(actor_id, &MessagesManager::on_set_message_reactions, message_full_id, std::move(result),
-                     std::move(promise));
-      });
-  m->reactions->send_paid_message_reaction(td_, message_full_id, random_id, std::move(query_promise));
-}
-
-void MessagesManager::remove_paid_message_reactions(MessageFullId message_full_id, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(
-      promise, d,
-      check_dialog_access(message_full_id.get_dialog_id(), false, AccessRights::Read, "remove_paid_message_reactions"));
-  auto *m = get_message_force(d, message_full_id.get_message_id(), "remove_paid_message_reactions");
-  if (m != nullptr && m->reactions != nullptr && m->reactions->has_pending_paid_reactions()) {
-    drop_message_pending_paid_reactions(d, m);
-  }
-  promise.set_value(Unit());
-}
-
-void MessagesManager::set_paid_message_reaction_type(MessageFullId message_full_id,
-                                                     const td_api::object_ptr<td_api::PaidReactionType> &type,
-                                                     Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(
-      promise, d,
-      check_dialog_access(dialog_id, true, AccessRights::Read, "toggle_paid_message_reaction_is_anonymous"));
-
-  Message *m = get_message_force(d, message_full_id.get_message_id(), "toggle_paid_message_reaction_is_anonymous");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (m->reactions == nullptr) {
-    return promise.set_error(Status::Error(400, "Message has no paid reactions"));
-  }
-  if (m->reactions->set_paid_message_reaction_type(td_, message_full_id, type, std::move(promise))) {
-    send_update_message_interaction_info(d->dialog_id, m);
-    on_message_changed(d, m, true, "toggle_paid_message_reaction_is_anonymous");
-  }
-}
-
-void MessagesManager::set_message_reactions(Dialog *d, Message *m, bool is_big, bool add_to_recent,
-                                            Promise<Unit> &&promise) {
-  CHECK(m->reactions != nullptr);
-  m->reactions->sort_reactions(active_reaction_pos_);
-
-  LOG(INFO) << "Update message reactions to " << *m->reactions;
-
-  MessageFullId message_full_id{d->dialog_id, m->message_id};
-  pending_reactions_[message_full_id].query_count++;
-
-  send_update_message_interaction_info(d->dialog_id, m);
-  on_message_changed(d, m, true, "set_message_reactions");
-
-  // TODO cancel previous queries, log event
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), message_full_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        send_closure(actor_id, &MessagesManager::on_set_message_reactions, message_full_id, std::move(result),
-                     std::move(promise));
-      });
-  send_message_reaction(td_, message_full_id, m->reactions->get_chosen_reaction_types(), is_big, add_to_recent,
-                        std::move(query_promise));
-}
-
-void MessagesManager::on_set_message_reactions(MessageFullId message_full_id, Result<Unit> result,
-                                               Promise<Unit> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  bool need_reload = result.is_error();
-  auto it = pending_reactions_.find(message_full_id);
-  CHECK(it != pending_reactions_.end());
-  if (--it->second.query_count == 0) {
-    // need_reload |= it->second.was_updated;
-    pending_reactions_.erase(it);
-  }
-
-  if (!have_message_force(message_full_id, "on_set_message_reactions")) {
-    return promise.set_value(Unit());
-  }
-
-  if (need_reload) {
-    td_->message_query_manager_->queue_message_reactions_reload(message_full_id);
-  }
-
-  promise.set_result(std::move(result));
-}
-
-Result<int32> MessagesManager::get_message_schedule_date(
-    td_api::object_ptr<td_api::MessageSchedulingState> &&scheduling_state) {
-  if (scheduling_state == nullptr) {
-    return 0;
-  }
-
-  switch (scheduling_state->get_id()) {
-    case td_api::messageSchedulingStateSendWhenVideoProcessed::ID:
-      return Status::Error(400, "Can't force video processing");
-    case td_api::messageSchedulingStateSendWhenOnline::ID: {
-      auto send_date = SCHEDULE_WHEN_ONLINE_DATE;
-      return send_date;
-    }
-    case td_api::messageSchedulingStateSendAtDate::ID: {
-      auto send_at_date = td_api::move_object_as<td_api::messageSchedulingStateSendAtDate>(scheduling_state);
-      auto send_date = send_at_date->send_date_;
-      if (send_date <= 0) {
-        return Status::Error(400, "Invalid send date specified");
-      }
-      if (send_date <= G()->unix_time() + 10) {
-        return 0;
-      }
-      if (send_date - G()->unix_time() > 367 * 86400) {
-        return Status::Error(400, "Send date is too far in the future");
-      }
-      return send_date;
-    }
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-int64 MessagesManager::get_required_paid_message_star_count(int32 error_code, CSlice error_message) {
-  auto allow_payment_required_prefix = CSlice("ALLOW_PAYMENT_REQUIRED_");
-  if ((error_code == 400 || error_code == 403) && begins_with(error_message, allow_payment_required_prefix)) {
-    return StarManager::get_star_count(to_integer<int64>(error_message.substr(allow_payment_required_prefix.size())));
-  }
-  return 0;
-}
-
-tl_object_ptr<td_api::MessageSendingState> MessagesManager::get_message_sending_state_object(const Message *m) const {
-  CHECK(m != nullptr);
-  if (m->message_id.is_yet_unsent()) {
-    return td_api::make_object<td_api::messageSendingStatePending>(m->sending_id);
-  }
-  if (m->is_failed_to_send) {
-    auto can_retry = can_resend_message(m);
-    auto error_code = m->send_error_code > 0 ? m->send_error_code : 400;
-    auto need_another_sender =
-        can_retry && error_code == 400 && m->send_error_message == CSlice("SEND_AS_PEER_INVALID");
-    auto need_another_reply_quote =
-        can_retry && error_code == 400 && m->send_error_message == CSlice("QUOTE_TEXT_INVALID");
-    auto need_drop_reply =
-        can_retry && error_code == 400 && m->send_error_message == CSlice("REPLY_MESSAGE_ID_INVALID");
-    return td_api::make_object<td_api::messageSendingStateFailed>(
-        td_api::make_object<td_api::error>(error_code, m->send_error_message), can_retry, need_another_sender,
-        need_another_reply_quote, need_drop_reply,
-        get_required_paid_message_star_count(error_code, m->send_error_message),
-        max(m->try_resend_at - Time::now(), 0.0));
-  }
-  return nullptr;
-}
-
-tl_object_ptr<td_api::MessageSchedulingState> MessagesManager::get_message_scheduling_state_object(
-    int32 send_date, bool video_processing_pending) {
-  if (video_processing_pending) {
-    return td_api::make_object<td_api::messageSchedulingStateSendWhenVideoProcessed>(send_date);
-  }
-  if (send_date == SCHEDULE_WHEN_ONLINE_DATE) {
-    return td_api::make_object<td_api::messageSchedulingStateSendWhenOnline>();
-  }
-  return td_api::make_object<td_api::messageSchedulingStateSendAtDate>(send_date);
-}
-
-td_api::object_ptr<td_api::MessageContent> MessagesManager::get_message_message_content_object(DialogId dialog_id,
-                                                                                               const Message *m) const {
-  auto live_location_date = m->is_failed_to_send ? 0 : m->date;
-  return get_message_content_object(
-      m->content.get(), td_, dialog_id, m->message_id, m->is_outgoing,
-      m->sender_dialog_id != DialogId() ? m->sender_dialog_id : DialogId(m->sender_user_id), live_location_date,
-      m->is_content_secret, need_skip_bot_commands(dialog_id, m), get_message_max_media_timestamp(m), m->invert_media,
-      m->disable_web_page_preview);
-}
-
-td_api::object_ptr<td_api::message> MessagesManager::get_dialog_event_log_message_object(
-    DialogId dialog_id, tl_object_ptr<telegram_api::Message> &&message, DialogId &sender_dialog_id) {
-  auto dialog_message = create_message(
-      td_, parse_telegram_api_message(td_, std::move(message), false, false, "get_dialog_event_log_message_object"),
-      dialog_id.get_type() == DialogType::Channel, false, "get_dialog_event_log_message_object");
-  const Message *m = dialog_message.second.get();
-  if (m == nullptr || dialog_message.first != dialog_id) {
-    LOG(ERROR) << "Failed to create event log message in " << dialog_id;
-    return nullptr;
-  }
-  sender_dialog_id = get_message_sender(m);
-
-  auto sender = get_message_sender_object_const(td_, m->sender_user_id, m->sender_dialog_id,
-                                                "get_dialog_event_log_message_object");
-  auto forward_info =
-      m->forward_info == nullptr ? nullptr : m->forward_info->get_message_forward_info_object(td_, false);
-  auto import_info = m->forward_info == nullptr ? nullptr : m->forward_info->get_message_import_info_object();
-  auto interaction_info = get_message_interaction_info_object(dialog_id, m);
-  auto can_be_saved = can_save_message(dialog_id, m);
-  auto via_bot_user_id =
-      td_->user_manager_->get_user_id_object(m->via_bot_user_id, "get_dialog_event_log_message_object via_bot_user_id");
-  auto edit_date = m->hide_edit_date ? 0 : m->edit_date;
-  auto reply_markup = get_reply_markup_object(td_->user_manager_.get(), m->reply_markup);
-  auto content = get_message_content_object(
-      m->content.get(), td_, dialog_id, m->message_id, m->is_outgoing,
-      m->sender_dialog_id != DialogId() ? m->sender_dialog_id : DialogId(m->sender_user_id), 0, false, true,
-      get_message_own_max_media_timestamp(m), m->invert_media, m->disable_web_page_preview);
-  return td_api::make_object<td_api::message>(
-      m->message_id.get(), std::move(sender), get_chat_id_object(dialog_id, "get_dialog_event_log_message_object"),
-      nullptr, nullptr, m->is_outgoing, m->is_pinned, m->is_from_offline, can_be_saved, true, m->is_channel_post,
-      m->is_topic_message, false, m->date, edit_date, std::move(forward_info), std::move(import_info),
-      std::move(interaction_info), Auto(), nullptr, nullptr, 0, 0, nullptr, 0.0, 0.0, via_bot_user_id, 0,
-      m->sender_boost_count, m->paid_message_star_count, m->author_signature, 0, 0,
-      get_restriction_reason_has_sensitive_content(m->restriction_reasons),
-      get_restriction_reason_description(m->restriction_reasons), std::move(content), std::move(reply_markup));
-}
-
-td_api::object_ptr<td_api::businessMessage> MessagesManager::get_business_message_object(
-    telegram_api::object_ptr<telegram_api::Message> &&message,
-    telegram_api::object_ptr<telegram_api::Message> &&reply_to_message) {
-  auto message_object = get_business_message_message_object(std::move(message));
-  if (message_object == nullptr) {
-    LOG(ERROR) << "Failed to create a business message";
-    return nullptr;
-  }
-  return td_api::make_object<td_api::businessMessage>(std::move(message_object),
-                                                      get_business_message_message_object(std::move(reply_to_message)));
-}
-
-td_api::object_ptr<td_api::message> MessagesManager::get_business_message_message_object(
-    telegram_api::object_ptr<telegram_api::Message> &&message) {
-  CHECK(td_->auth_manager_->is_bot());
-  if (message == nullptr) {
-    return nullptr;
-  }
-  auto dialog_message = create_message(
-      td_, parse_telegram_api_message(td_, std::move(message), false, true, "get_business_message_message_object"),
-      false, true, "get_business_message_message_object");
-  const Message *m = dialog_message.second.get();
-  if (m == nullptr) {
-    return nullptr;
-  }
-
-  auto dialog_id = dialog_message.first;
-  if (dialog_id.get_type() != DialogType::User) {
-    LOG(ERROR) << "Receive a business message in " << dialog_id;
-    return nullptr;
-  }
-  force_create_dialog(dialog_id, "get_business_message_message_object chat", true);
-
-  auto sender = get_message_sender_object_const(td_, m->sender_user_id, m->sender_dialog_id,
-                                                "get_business_message_message_object");
-  auto forward_info =
-      m->forward_info == nullptr ? nullptr : m->forward_info->get_message_forward_info_object(td_, false);
-  auto import_info = m->forward_info == nullptr ? nullptr : m->forward_info->get_message_import_info_object();
-  auto can_be_saved = !m->noforwards && !m->is_content_secret;
-  auto via_bot_user_id =
-      td_->user_manager_->get_user_id_object(m->via_bot_user_id, "get_business_message_message_object via_bot_user_id");
-  auto via_business_bot_user_id = td_->user_manager_->get_user_id_object(
-      m->via_business_bot_user_id, "get_business_message_message_object via_business_bot_user_id");
-  auto reply_to = [&]() -> td_api::object_ptr<td_api::MessageReplyTo> {
-    if (!m->replied_message_info.is_empty()) {
-      return m->replied_message_info.get_message_reply_to_message_object(td_, dialog_id, m->message_id);
-    }
-    if (m->reply_to_story_full_id.is_valid()) {
-      return td_api::make_object<td_api::messageReplyToStory>(
-          get_chat_id_object(m->reply_to_story_full_id.get_dialog_id(),
-                             "get_business_message_message_object messageReplyToStory"),
-          m->reply_to_story_full_id.get_story_id().get());
-    }
-    return nullptr;
-  }();
-  auto reply_markup = get_reply_markup_object(td_->user_manager_.get(), m->reply_markup);
-  auto content = get_message_message_content_object(dialog_id, m);
-  auto self_destruct_type = m->ttl.get_message_self_destruct_type_object();
-
-  return td_api::make_object<td_api::message>(
-      m->message_id.get(), std::move(sender), get_chat_id_object(dialog_id, "get_business_message_message_object"),
-      nullptr, nullptr, m->is_outgoing, false, m->is_from_offline, can_be_saved, false, false, false, false, m->date,
-      m->edit_date, std::move(forward_info), std::move(import_info), nullptr, Auto(), nullptr, std::move(reply_to), 0,
-      0, std::move(self_destruct_type), 0.0, 0.0, via_bot_user_id, via_business_bot_user_id, m->sender_boost_count,
-      m->paid_message_star_count, string(), m->media_album_id, m->effect_id.get(),
-      get_restriction_reason_has_sensitive_content(m->restriction_reasons),
-      get_restriction_reason_description(m->restriction_reasons), std::move(content), std::move(reply_markup));
-}
-
-td_api::object_ptr<td_api::message> MessagesManager::get_message_object(Dialog *d, MessageId message_id,
-                                                                        const char *source) {
-  return get_message_object(d->dialog_id, get_message_force(d, message_id, source), source);
-}
-
-td_api::object_ptr<td_api::message> MessagesManager::get_message_object(const Dialog *d, MessageId message_id,
-                                                                        const char *source) const {
-  return get_message_object(d->dialog_id, get_message(d, message_id), source);
-}
-
-td_api::object_ptr<td_api::message> MessagesManager::get_message_object(MessageFullId message_full_id,
-                                                                        const char *source) {
-  return get_message_object(message_full_id.get_dialog_id(), get_message_force(message_full_id, source), source);
-}
-
-td_api::object_ptr<td_api::message> MessagesManager::get_message_object(DialogId dialog_id, const Message *m,
-                                                                        const char *source) const {
-  if (m == nullptr) {
-    return nullptr;
-  }
-  LOG_CHECK(have_dialog(dialog_id)) << source;
-
-  auto is_bot = td_->auth_manager_->is_bot();
-  auto sending_state = get_message_sending_state_object(m);
-  if (sending_state == nullptr || !is_bot) {
-    m->is_update_sent = true;
-  }
-  bool is_scheduled = m->message_id.is_scheduled();
-  bool is_from_saved_messages = (dialog_id == td_->dialog_manager_->get_my_dialog_id());
-  bool is_outgoing = m->is_outgoing;
-  if (is_from_saved_messages) {
-    // in Saved Messages all non-forwarded messages must be outgoing
-    // a forwarded message is outgoing, only if it doesn't have from_dialog_id and its sender isn't hidden
-    // i.e. a message is incoming only if it's a forwarded message with known from_dialog_id or with a hidden sender
-    is_outgoing =
-        is_scheduled || m->forward_info == nullptr ||
-        (!m->forward_info->get_last_dialog_id().is_valid() && !m->forward_info->get_origin().is_sender_hidden());
-  }
-  if (m->is_from_scheduled && is_outgoing && is_bot) {
-    is_outgoing = false;
-  }
-
-  double ttl_expires_in =
-      m->ttl_expires_at != 0 ? clamp(m->ttl_expires_at - Time::now(), 1e-3, m->ttl.get_input_ttl() - 1e-3) : 0.0;
-  double auto_delete_in =
-      m->ttl_period == 0 ? 0.0 : clamp(m->date + m->ttl_period - G()->server_time(), 1e-3, m->ttl_period - 1e-3);
-  auto sender = get_message_sender_object_const(td_, m->sender_user_id, m->sender_dialog_id, source);
-  auto scheduling_state =
-      is_scheduled ? get_message_scheduling_state_object(m->date, m->video_processing_pending) : nullptr;
-  auto forward_info = m->forward_info == nullptr
-                          ? nullptr
-                          : m->forward_info->get_message_forward_info_object(td_, is_from_saved_messages);
-  auto import_info = m->forward_info == nullptr ? nullptr : m->forward_info->get_message_import_info_object();
-  auto interaction_info = is_bot ? nullptr : get_message_interaction_info_object(dialog_id, m);
-  auto unread_reactions = get_unread_reactions_object(dialog_id, m);
-  auto fact_check = get_message_fact_check_object(m);
-  auto can_be_saved = can_save_message(dialog_id, m);
-  auto via_bot_user_id =
-      td_->user_manager_->get_user_id_object(m->via_bot_user_id, "get_message_object via_bot_user_id");
-  auto via_business_bot_user_id = td_->user_manager_->get_user_id_object(m->via_business_bot_user_id,
-                                                                         "get_message_object via_business_bot_user_id");
-  auto reply_to = [&]() -> td_api::object_ptr<td_api::MessageReplyTo> {
-    if (!m->replied_message_info.is_empty()) {
-      if (!is_bot && m->is_topic_message &&
-          m->replied_message_info.get_same_chat_reply_to_message_id(false) == m->top_thread_message_id) {
-        return nullptr;
-      }
-      return m->replied_message_info.get_message_reply_to_message_object(td_, dialog_id, m->message_id);
-    }
-    if (m->reply_to_story_full_id.is_valid()) {
-      return td_api::make_object<td_api::messageReplyToStory>(
-          get_chat_id_object(m->reply_to_story_full_id.get_dialog_id(), "get_message_object messageReplyToStory"),
-          m->reply_to_story_full_id.get_story_id().get());
-    }
-    return nullptr;
-  }();
-  auto top_thread_message_id = m->top_thread_message_id.get();
-  auto date = is_scheduled ? 0 : m->date;
-  auto edit_date = m->hide_edit_date || is_scheduled ? 0 : m->edit_date;
-  auto has_timestamped_media = reply_to == nullptr || m->max_own_media_timestamp >= 0;
-  auto reply_markup = get_reply_markup_object(td_->user_manager_.get(), m->reply_markup);
-  auto content = get_message_message_content_object(dialog_id, m);
-  auto self_destruct_type = m->ttl.get_message_self_destruct_type_object();
-
-  return td_api::make_object<td_api::message>(
-      m->message_id.get(), std::move(sender), get_chat_id_object(dialog_id, "get_message_object"),
-      std::move(sending_state), std::move(scheduling_state), is_outgoing, m->is_pinned, m->is_from_offline,
-      can_be_saved, has_timestamped_media, m->is_channel_post, m->is_topic_message, m->contains_unread_mention, date,
-      edit_date, std::move(forward_info), std::move(import_info), std::move(interaction_info),
-      std::move(unread_reactions), std::move(fact_check), std::move(reply_to), top_thread_message_id,
-      td_->saved_messages_manager_->get_saved_messages_topic_id_object(m->saved_messages_topic_id),
-      std::move(self_destruct_type), ttl_expires_in, auto_delete_in, via_bot_user_id, via_business_bot_user_id,
-      m->sender_boost_count, m->paid_message_star_count, m->author_signature, m->media_album_id, m->effect_id.get(),
-      get_restriction_reason_has_sensitive_content(m->restriction_reasons),
-      get_restriction_reason_description(m->restriction_reasons), std::move(content), std::move(reply_markup));
-}
-
-td_api::object_ptr<td_api::messages> MessagesManager::get_messages_object(int32 total_count, DialogId dialog_id,
-                                                                          const vector<MessageId> &message_ids,
-                                                                          bool skip_not_found, const char *source) {
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  auto message_objects = transform(
-      message_ids, [this, d, source](MessageId message_id) { return get_message_object(d, message_id, source); });
-  return get_messages_object(total_count, std::move(message_objects), skip_not_found);
-}
-
-td_api::object_ptr<td_api::messages> MessagesManager::get_messages_object(int32 total_count,
-                                                                          const vector<MessageFullId> &message_full_ids,
-                                                                          bool skip_not_found, const char *source) {
-  auto message_objects = transform(message_full_ids, [this, source](MessageFullId message_full_id) {
-    return get_message_object(message_full_id, source);
-  });
-  return get_messages_object(total_count, std::move(message_objects), skip_not_found);
-}
-
-td_api::object_ptr<td_api::messages> MessagesManager::get_messages_object(
-    int32 total_count, vector<tl_object_ptr<td_api::message>> &&messages, bool skip_not_found) {
-  auto message_count = narrow_cast<int32>(messages.size());
-  if (total_count < message_count) {
-    if (total_count != -1) {
-      LOG(ERROR) << "Have wrong total_count = " << total_count << ", while having " << message_count << " messages";
-    }
-    total_count = message_count;
-  }
-  if (skip_not_found && td::remove(messages, nullptr)) {
-    total_count -= message_count - static_cast<int32>(messages.size());
-  }
-  return td_api::make_object<td_api::messages>(total_count, std::move(messages));
-}
-
-bool MessagesManager::get_dialog_silent_send_message(DialogId dialog_id) const {
-  auto *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  return d->notification_settings.silent_send_message;
-}
-
-bool MessagesManager::get_dialog_has_last_message(DialogId dialog_id) const {
-  const auto *d = get_dialog(dialog_id);
-  return d != nullptr && d->last_message_id.is_valid();
-}
-
-DialogId MessagesManager::get_dialog_default_send_message_as_dialog_id(DialogId dialog_id) const {
-  auto *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  return d->default_send_message_as_dialog_id;
-}
-
-MessageInputReplyTo MessagesManager::create_message_input_reply_to(
-    DialogId dialog_id, MessageId top_thread_message_id, td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to,
-    bool for_draft) {
-  return create_message_input_reply_to(get_dialog(dialog_id), top_thread_message_id, std::move(reply_to), for_draft);
-}
-
-int64 MessagesManager::generate_new_random_id(const Dialog *d) {
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || being_sent_messages_.count(random_id) > 0 ||
-           d->random_id_to_message_id.count(random_id) > 0);
-  return random_id;
-}
-
-unique_ptr<MessagesManager::Message> MessagesManager::create_message_to_send(
-    Dialog *d, MessageId top_thread_message_id, MessageInputReplyTo &&input_reply_to, const MessageSendOptions &options,
-    unique_ptr<MessageContent> &&content, bool invert_media, bool suppress_reply_info,
-    unique_ptr<MessageForwardInfo> forward_info, DialogId real_forward_from_dialog_id, bool is_copy,
-    DialogId send_as_dialog_id) const {
-  CHECK(d != nullptr);
-  CHECK(content != nullptr);
-
-  bool is_scheduled = options.schedule_date != 0;
-  DialogId dialog_id = d->dialog_id;
-
-  auto dialog_type = dialog_id.get_type();
-  auto my_id = td_->user_manager_->get_my_id();
-
-  int64 reply_to_random_id = 0;
-  bool is_topic_message = false;
-  auto initial_top_thread_message_id = top_thread_message_id;
-  auto same_chat_reply_to_message_id = input_reply_to.get_same_chat_reply_to_message_id();
-  if (same_chat_reply_to_message_id.is_valid() || same_chat_reply_to_message_id.is_valid_scheduled()) {
-    // the message was forcely preloaded in create_message_input_reply_to
-    // it can be missing, only if it is unknown message from a push notification, or an unknown top thread message
-    const Message *reply_m = get_message(d, same_chat_reply_to_message_id);
-    if (reply_m != nullptr && !same_chat_reply_to_message_id.is_scheduled()) {
-      if (reply_m->top_thread_message_id.is_valid()) {
-        top_thread_message_id = reply_m->top_thread_message_id;
-      }
-      is_topic_message = reply_m->is_topic_message;
-    }
-    if (dialog_type == DialogType::SecretChat || same_chat_reply_to_message_id.is_yet_unsent()) {
-      if (reply_m != nullptr) {
-        reply_to_random_id = reply_m->random_id;
-      } else {
-        CHECK(dialog_type == DialogType::SecretChat);
-        CHECK(top_thread_message_id == MessageId());
-        input_reply_to = MessageInputReplyTo();
-      }
-    }
-  }
-  if (top_thread_message_id.is_valid()) {
-    const Message *top_m = get_message(d, top_thread_message_id);
-    if (top_m != nullptr) {
-      is_topic_message = top_m->is_topic_message;
-    }
-  }
-
-  auto message = make_unique<Message>();
-  auto *m = message.get();
-  bool is_channel_post = td_->dialog_manager_->is_broadcast_channel(dialog_id);
-  if (!is_channel_post ||
-      (!is_scheduled && td_->chat_manager_->get_channel_sign_messages(dialog_id.get_channel_id()))) {
-    if (send_as_dialog_id.is_valid()) {
-      // for resend_messages
-      if (send_as_dialog_id.get_type() == DialogType::User) {
-        m->sender_user_id = send_as_dialog_id.get_user_id();
-      } else {
-        m->sender_dialog_id = send_as_dialog_id;
-      }
-      if (dialog_type == DialogType::Channel) {
-        m->has_explicit_sender = true;
-      }
-    } else if (d->default_send_message_as_dialog_id.is_valid()) {
-      if (d->default_send_message_as_dialog_id.get_type() == DialogType::User) {
-        m->sender_user_id = my_id;
-      } else {
-        m->sender_dialog_id = d->default_send_message_as_dialog_id;
-      }
-      m->has_explicit_sender = true;
-    } else {
-      if (!is_channel_post && td_->dialog_manager_->is_anonymous_administrator(dialog_id, &m->author_signature)) {
-        m->sender_dialog_id = dialog_id;
-      } else {
-        m->sender_user_id = my_id;
-      }
-    }
-  } else {
-    m->sender_dialog_id = dialog_id;
-  }
-  if (is_channel_post && !is_scheduled && td_->chat_manager_->get_channel_sign_messages(dialog_id.get_channel_id())) {
-    auto show_message_sender = td_->chat_manager_->get_channel_show_message_sender(dialog_id.get_channel_id());
-    if (m->sender_dialog_id != dialog_id || !m->has_explicit_sender) {
-      m->author_signature = m->sender_dialog_id == dialog_id || m->sender_dialog_id == DialogId()
-                                ? td_->user_manager_->get_user_title(my_id)
-                                : td_->dialog_manager_->get_dialog_title(m->sender_dialog_id);
-    }
-    if (!show_message_sender) {
-      m->initial_sender_dialog_id = get_message_sender(m);
-      m->sender_user_id = UserId();
-      m->sender_dialog_id = dialog_id;
-    }
-  }
-  m->message_id = options.schedule_date != 0 ? get_next_yet_unsent_scheduled_message_id(d, options.schedule_date)
-                                             : get_next_yet_unsent_message_id(d);
-  m->send_date = G()->unix_time();
-  m->date = is_scheduled ? options.schedule_date : m->send_date;
-  m->replied_message_info = RepliedMessageInfo(td_, input_reply_to);
-  m->reply_to_story_full_id = input_reply_to.get_story_full_id();
-  m->input_reply_to = std::move(input_reply_to);
-  m->reply_to_random_id = reply_to_random_id;
-  m->top_thread_message_id = top_thread_message_id;
-  m->initial_top_thread_message_id = initial_top_thread_message_id;
-  m->is_topic_message = is_topic_message;
-  m->is_channel_post = is_channel_post;
-  m->is_outgoing = is_scheduled || dialog_id != DialogId(my_id);
-  m->from_background = options.from_background;
-  m->update_stickersets_order = options.update_stickersets_order;
-  m->noforwards = options.protect_content;
-  m->allow_paid = options.allow_paid;
-  m->paid_message_star_count = options.paid_message_star_count;
-  m->view_count = is_channel_post && !is_scheduled ? 1 : 0;
-  m->forward_count = 0;
-  if ([&] {
-        if (suppress_reply_info) {
-          return false;
-        }
-        if (is_scheduled) {
-          return false;
-        }
-        if (dialog_type != DialogType::Channel) {
-          return false;
-        }
-        if (td_->auth_manager_->is_bot()) {
-          return false;
-        }
-        if (is_channel_post) {
-          return td_->chat_manager_->get_channel_has_linked_channel(dialog_id.get_channel_id());
-        }
-        return !m->input_reply_to.is_valid();
-      }()) {
-    m->reply_info.reply_count_ = 0;
-    if (is_channel_post) {
-      auto linked_channel_id =
-          td_->chat_manager_->get_channel_linked_channel_id(dialog_id.get_channel_id(), "create_message_to_send");
-      if (linked_channel_id.is_valid()) {
-        m->reply_info.is_comment_ = true;
-        m->reply_info.channel_id_ = linked_channel_id;
-      }
-    }
-  }
-  if (m->sender_user_id == my_id && dialog_type == DialogType::Channel && !is_channel_post) {
-    m->sender_boost_count = td_->chat_manager_->get_channel_my_boost_count(dialog_id.get_channel_id());
-  }
-  m->effect_id = MessageEffectId(options.effect_id);
-  m->content = std::move(content);
-  m->invert_media = invert_media;
-  m->forward_info = std::move(forward_info);
-  m->real_forward_from_dialog_id = real_forward_from_dialog_id;
-  m->is_copy = is_copy || m->forward_info != nullptr;
-  m->sending_id = options.sending_id;
-
-  if (td_->auth_manager_->is_bot() || options.disable_notification ||
-      td_->option_manager_->get_option_boolean("ignore_default_disable_notification")) {
-    m->disable_notification = options.disable_notification;
-  } else {
-    m->disable_notification = d->notification_settings.silent_send_message;
-  }
-
-  if (dialog_type == DialogType::SecretChat) {
-    CHECK(!is_scheduled);
-    if (is_service_message_content(m->content->get_type())) {
-      m->ttl = {};
-    } else {
-      m->ttl = MessageSelfDestructType(td_->user_manager_->get_secret_chat_ttl(dialog_id.get_secret_chat_id()), false);
-    }
-    m->is_content_secret = m->ttl.is_secret_message_content(m->content->get_type());
-  }
-  if (dialog_id == DialogId(my_id)) {
-    m->saved_messages_topic_id = SavedMessagesTopicId(dialog_id, m->forward_info.get(), m->real_forward_from_dialog_id);
-  }
-
-  return message;
-}
-
-MessagesManager::Message *MessagesManager::get_message_to_send(
-    Dialog *d, MessageId top_thread_message_id, MessageInputReplyTo &&input_reply_to, const MessageSendOptions &options,
-    unique_ptr<MessageContent> &&content, bool invert_media, bool *need_update_dialog_pos, bool suppress_reply_info,
-    unique_ptr<MessageForwardInfo> forward_info, DialogId real_forward_from_dialog_id, bool is_copy,
-    DialogId send_as_dialog_id) {
-  d->was_opened = true;
-
-  auto message = create_message_to_send(d, top_thread_message_id, std::move(input_reply_to), options,
-                                        std::move(content), invert_media, suppress_reply_info, std::move(forward_info),
-                                        real_forward_from_dialog_id, is_copy, send_as_dialog_id);
-
-  auto message_id = message->message_id;
-  message->random_id = generate_new_random_id(d);
-
-  bool need_update = false;
-  CHECK(td_->dialog_manager_->have_input_peer(d->dialog_id, true, AccessRights::Read));
-  auto result =
-      add_message_to_dialog(d, std::move(message), false, true, &need_update, need_update_dialog_pos, "send message");
-  LOG_CHECK(result != nullptr) << message_id << " " << debug_add_message_to_dialog_fail_reason_;
-  if (result->message_id.is_scheduled()) {
-    send_update_chat_has_scheduled_messages(d, false);
-  }
-  if (options.update_stickersets_order && !td_->auth_manager_->is_bot()) {
-    move_message_content_sticker_set_to_top(td_, result->content.get());
-  }
-  if (result->paid_message_star_count > 0) {
-    td_->star_manager_->add_pending_owned_star_count(-result->paid_message_star_count, false);
-  }
-  return result;
-}
-
-int64 MessagesManager::begin_send_message(DialogId dialog_id, const Message *m) {
-  LOG(INFO) << "Begin to send " << MessageFullId(dialog_id, m->message_id) << " with random_id = " << m->random_id;
-  CHECK(m->random_id != 0);
-  CHECK(m->message_id.is_yet_unsent());
-  bool is_inserted = being_sent_messages_.emplace(m->random_id, MessageFullId(dialog_id, m->message_id)).second;
-  CHECK(is_inserted);
-  return m->random_id;
-}
-
-Status MessagesManager::can_send_message(DialogId dialog_id) const {
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Write)) {
-    return Status::Error(400, "Have no write access to the chat");
-  }
-
-  if (dialog_id.get_type() == DialogType::Channel) {
-    auto channel_id = dialog_id.get_channel_id();
-    auto channel_type = td_->chat_manager_->get_channel_type(channel_id);
-    auto channel_status = td_->chat_manager_->get_channel_permissions(channel_id);
-
-    switch (channel_type) {
-      case ChannelType::Unknown:
-      case ChannelType::Megagroup:
-        break;
-      case ChannelType::Broadcast: {
-        if (!channel_status.can_post_messages()) {
-          return Status::Error(400, "Need administrator rights in the channel chat");
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-  return Status::OK();
-}
-
-MessageId MessagesManager::get_persistent_message_id(const Dialog *d, MessageId message_id) const {
-  if (!message_id.is_valid() && !message_id.is_valid_scheduled()) {
-    return MessageId();
-  }
-  if (message_id.is_yet_unsent()) {
-    // it is possible that user tries to do something with an already sent message by its temporary identifier
-    // we need to use real message in this case and transparently replace message_id
-    auto it = yet_unsent_message_full_id_to_persistent_message_id_.find({d->dialog_id, message_id});
-    if (it != yet_unsent_message_full_id_to_persistent_message_id_.end()) {
-      return it->second;
-    }
-  }
-
-  return message_id;
-}
-
-MessageInputReplyTo MessagesManager::create_message_input_reply_to(
-    Dialog *d, MessageId top_thread_message_id, td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to,
-    bool for_draft) {
-  CHECK(d != nullptr);
-  if (top_thread_message_id.is_valid() &&
-      !have_message_force(d, top_thread_message_id, "create_message_input_reply_to 1")) {
-    LOG(INFO) << "Have reply in the thread of unknown " << top_thread_message_id;
-  }
-  if (reply_to == nullptr) {
-    if (!for_draft && top_thread_message_id.is_valid() && top_thread_message_id.is_server()) {
-      return MessageInputReplyTo{top_thread_message_id, DialogId(), MessageQuote()};
-    }
-    return {};
-  }
-  switch (reply_to->get_id()) {
-    case td_api::inputMessageReplyToStory::ID: {
-      if (for_draft) {
-        return {};
-      }
-      auto reply_to_story = td_api::move_object_as<td_api::inputMessageReplyToStory>(reply_to);
-      auto story_id = StoryId(reply_to_story->story_id_);
-      auto sender_dialog_id = DialogId(reply_to_story->story_sender_chat_id_);
-      if (d->dialog_id != sender_dialog_id || td_->dialog_manager_->is_broadcast_channel(sender_dialog_id)) {
-        LOG(INFO) << "Ignore reply to story from " << sender_dialog_id << " in a wrong " << d->dialog_id;
-        return {};
-      }
-      if (!story_id.is_server()) {
-        LOG(INFO) << "Ignore reply to invalid " << story_id;
-        return {};
-      }
-      return MessageInputReplyTo{StoryFullId(sender_dialog_id, story_id)};
-    }
-    case td_api::inputMessageReplyToMessage::ID: {
-      auto reply_to_message = td_api::move_object_as<td_api::inputMessageReplyToMessage>(reply_to);
-      auto message_id = MessageId(reply_to_message->message_id_);
-      if (!message_id.is_valid()) {
-        if (!for_draft && message_id == MessageId() && top_thread_message_id.is_valid() &&
-            top_thread_message_id.is_server()) {
-          return MessageInputReplyTo{top_thread_message_id, DialogId(), MessageQuote()};
-        }
-        return {};
-      }
-      message_id = get_persistent_message_id(d, message_id);
-      if (message_id == MessageId(ServerMessageId(1)) && d->dialog_id.get_type() == DialogType::Channel) {
-        return {};
-      }
-      const Message *m = get_message_force(d, message_id, "create_message_input_reply_to 2");
-      if (m == nullptr || m->message_id.is_yet_unsent() ||
-          (m->message_id.is_local() && d->dialog_id.get_type() != DialogType::SecretChat)) {
-        if (message_id.is_server() && d->dialog_id.get_type() != DialogType::SecretChat &&
-            message_id > d->last_new_message_id &&
-            (d->notification_info != nullptr &&
-             message_id <= d->notification_info->max_push_notification_message_id_)) {
-          // allow to reply yet unreceived server message in the same chat
-          return MessageInputReplyTo{message_id, DialogId(), MessageQuote{td_, std::move(reply_to_message->quote_)}};
-        }
-        if (!for_draft && top_thread_message_id.is_valid() && top_thread_message_id.is_server()) {
-          return MessageInputReplyTo{top_thread_message_id, DialogId(), MessageQuote()};
-        }
-        LOG(INFO) << "Can't find " << message_id << " in " << d->dialog_id;
-
-        // TODO local replies to local messages can be allowed
-        // TODO replies to yet unsent messages can be allowed with special handling of them on application restart
-        return {};
-      }
-      return MessageInputReplyTo{m->message_id, DialogId(), MessageQuote{td_, std::move(reply_to_message->quote_)}};
-    }
-    case td_api::inputMessageReplyToExternalMessage::ID: {
-      auto reply_to_message = td_api::move_object_as<td_api::inputMessageReplyToExternalMessage>(reply_to);
-      if (d->dialog_id.get_type() == DialogType::SecretChat) {
-        return {};
-      }
-      auto reply_dialog_id = DialogId(reply_to_message->chat_id_);
-      auto *reply_d = get_dialog_force(reply_dialog_id, "create_message_input_reply_to");
-      if (reply_d == nullptr) {
-        return {};
-      }
-      auto message_id = get_persistent_message_id(reply_d, MessageId(reply_to_message->message_id_));
-      if (message_id == MessageId(ServerMessageId(1)) && reply_d->dialog_id.get_type() == DialogType::Channel) {
-        return {};
-      }
-      const Message *m = get_message_force(reply_d, message_id, "create_message_input_reply_to 2");
-      if (!can_forward_message(reply_dialog_id, m) || !m->message_id.is_valid() || !m->message_id.is_server()) {
-        LOG(INFO) << "Can't reply in another chat " << message_id << " in " << reply_d->dialog_id;
-        return {};
-      }
-      return MessageInputReplyTo{m->message_id, reply_dialog_id,
-                                 MessageQuote{td_, std::move(reply_to_message->quote_)}};
-    }
-    default:
-      UNREACHABLE();
-      return {};
-  }
-}
-
-MessagesManager::ForwardedMessageInfo MessagesManager::get_forwarded_message_info(MessageFullId message_full_id) {
-  ForwardedMessageInfo result;
-  auto *m = get_message_force(message_full_id, "get_forwarded_message_info");
-  if (m == nullptr || m->message_id.is_scheduled()) {
-    return result;
-  }
-  auto dialog_id = message_full_id.get_dialog_id();
-  result.origin_date_ = get_message_original_date(m);
-  result.origin_ = get_forwarded_message_origin(dialog_id, m);
-  result.content_ = dup_message_content(td_, td_->dialog_manager_->get_my_dialog_id(), m->content.get(),
-                                        MessageContentDupType::Forward, MessageCopyOptions());
-  return result;
-}
-
-const MessageInputReplyTo *MessagesManager::get_message_input_reply_to(const Message *m) {
-  CHECK(m != nullptr);
-  CHECK(!m->message_id.is_any_server());
-  return &m->input_reply_to;
-}
-
-int64 MessagesManager::get_message_random_id(MessageFullId message_full_id) {
-  Dialog *d = get_dialog_force(message_full_id.get_dialog_id(), "get_message_random_id");
-  if (d == nullptr) {
-    return 0;
-  }
-  return get_message_random_id(d, message_full_id.get_message_id());
-}
-
-int64 MessagesManager::get_message_random_id(Dialog *d, MessageId message_id) {
-  const auto *m = get_message_force(d, message_id, "get_message_random_id");
-  if (m == nullptr) {
-    return 0;
-  }
-  return m->random_id;
-}
-
-vector<FileId> MessagesManager::get_message_file_ids(const Message *m) const {
-  CHECK(m != nullptr);
-  auto file_ids = get_message_content_file_ids(m->content.get(), td_);
-  if (!m->replied_message_info.is_empty()) {
-    append(file_ids, m->replied_message_info.get_file_ids(td_));
-  }
-  return file_ids;
-}
-
-void MessagesManager::cancel_upload_message_content_files(const vector<FileUploadId> &file_upload_ids,
-                                                          const vector<FileUploadId> &thumbnail_file_upload_ids) {
-  // always cancel file upload, it should be a no-op in the worst case
-  for (auto file_upload_id : file_upload_ids) {
-    if (being_uploaded_files_.erase(file_upload_id) || file_upload_id.is_valid()) {
-      cancel_upload_file(file_upload_id, "cancel_upload_message_content_files");
-    }
-  }
-  for (auto file_upload_id : thumbnail_file_upload_ids) {
-    if (being_uploaded_thumbnails_.erase(file_upload_id) || being_loaded_secret_thumbnails_.erase(file_upload_id) ||
-        file_upload_id.is_valid()) {
-      cancel_upload_file(file_upload_id, "cancel_upload_message_content_files");
-    }
-  }
-}
-
-void MessagesManager::cancel_upload_file(FileUploadId file_upload_id, const char *source) {
-  // send the request later so they doesn't interfere with other actions
-  // for example merge, supposed to happen soon, can auto-cancel the upload
-  LOG(INFO) << "Cancel upload of " << file_upload_id << " from " << source;
-  send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-}
-
-void MessagesManager::cancel_send_message_query(DialogId dialog_id, Message *m) {
-  CHECK(m != nullptr);
-  CHECK(m->content != nullptr);
-  CHECK(m->message_id.is_valid() || m->message_id.is_valid_scheduled());
-  CHECK(m->message_id.is_yet_unsent());
-  LOG(INFO) << "Cancel send message query for " << m->message_id;
-
-  cancel_upload_message_content_files(m->file_upload_ids, m->thumbnail_file_upload_ids);
-
-  CHECK(get_edited_message_content({dialog_id, m->message_id}) == nullptr);
-
-  if (!m->send_query_ref.empty()) {
-    LOG(INFO) << "Cancel send query for " << m->message_id;
-    cancel_query(m->send_query_ref);
-    m->send_query_ref = NetQueryRef();
-  }
-
-  if (m->send_message_log_event_id != 0) {
-    LOG(INFO) << "Delete send message log event for " << m->message_id;
-    binlog_erase(G()->td_db()->get_binlog(), m->send_message_log_event_id);
-    m->send_message_log_event_id = 0;
-  }
-
-  update_replied_by_message_count(dialog_id, m, false);
-  {
-    auto it = replied_yet_unsent_messages_.find({dialog_id, m->message_id});
-    if (it != replied_yet_unsent_messages_.end()) {
-      for (auto message_full_id : it->second) {
-        auto reply_d = get_dialog(message_full_id.get_dialog_id());
-        CHECK(reply_d != nullptr);
-        auto replied_m = get_message(reply_d, message_full_id.get_message_id());
-        CHECK(replied_m != nullptr);
-        const auto *input_reply_to = get_message_input_reply_to(replied_m);
-        CHECK(input_reply_to != nullptr);
-        CHECK(input_reply_to->get_reply_message_full_id(reply_d->dialog_id) == MessageFullId(dialog_id, m->message_id));
-        set_message_reply(reply_d, replied_m,
-                          MessageInputReplyTo{replied_m->top_thread_message_id, DialogId(), MessageQuote()}, true);
-      }
-      replied_yet_unsent_messages_.erase(it);
-    }
-  }
-
-  if (m->media_album_id != 0) {
-    send_closure_later(actor_id(this), &MessagesManager::on_upload_message_media_finished, m->media_album_id, dialog_id,
-                       m->message_id, -1, Status::OK());
-  } else if (m->content->get_type() == MessageContentType::PaidMedia) {
-    LOG(INFO) << "Remove paid media group send from " << MessageFullId{dialog_id, m->message_id};
-    pending_paid_media_group_sends_.erase({dialog_id, m->message_id});
-  }
-
-  if (!m->message_id.is_scheduled() && G()->keep_media_order() && !m->is_copy) {
-    auto queue_id = ChainId(dialog_id, m->content->get_type()).get();
-    if (queue_id & 1) {
-      auto queue_it = yet_unsent_media_queues_.find(queue_id);
-      if (queue_it != yet_unsent_media_queues_.end()) {
-        auto &queue = queue_it->second.queue_;
-        LOG(INFO) << "Delete " << m->message_id << " from queue " << queue_id;
-        if (queue.erase(m->message_id) != 0) {
-          if (queue.empty()) {
-            yet_unsent_media_queues_.erase(queue_it);
-          } else {
-            // send later, because delete_all_dialog_messages can be called right now
-            send_closure_later(actor_id(this), &MessagesManager::on_yet_unsent_media_queue_updated, dialog_id);
-          }
-        }
-      }
-    }
-  }
-}
-
-void MessagesManager::cancel_send_deleted_message(DialogId dialog_id, Message *m, bool is_permanently_deleted) {
-  CHECK(m != nullptr);
-  if (m->message_id.is_yet_unsent()) {
-    cancel_send_message_query(dialog_id, m);
-  } else if (is_permanently_deleted || !m->message_id.is_scheduled()) {
-    cancel_edit_message_media(dialog_id, m, "Message was deleted");
-  }
-}
-
-bool MessagesManager::is_message_auto_read(DialogId dialog_id, bool is_outgoing) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      auto user_id = dialog_id.get_user_id();
-      if (user_id == td_->user_manager_->get_my_id()) {
-        return true;
-      }
-      if (is_outgoing && td_->user_manager_->is_user_bot(user_id) && !td_->user_manager_->is_user_support(user_id)) {
-        return true;
-      }
-      return false;
-    }
-    case DialogType::Chat:
-      // TODO auto_read message content and messages sent to group with bots only
-      return false;
-    case DialogType::Channel:
-      return is_outgoing && td_->dialog_manager_->is_broadcast_channel(dialog_id);
-    case DialogType::SecretChat:
-      return false;
-    case DialogType::None:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-void MessagesManager::add_message_dependencies(Dependencies &dependencies, const Message *m) const {
-  auto is_bot = td_->auth_manager_->is_bot();
-  dependencies.add(m->sender_user_id);
-  dependencies.add_dialog_and_dependencies(m->sender_dialog_id);
-  m->saved_messages_topic_id.add_dependencies(dependencies);
-  m->replied_message_info.add_dependencies(dependencies, is_bot);
-  dependencies.add_dialog_and_dependencies(m->reply_to_story_full_id.get_dialog_id());
-  dependencies.add_dialog_and_dependencies(m->real_forward_from_dialog_id);
-  dependencies.add(m->via_bot_user_id);
-  dependencies.add(m->via_business_bot_user_id);
-  if (m->forward_info != nullptr) {
-    m->forward_info->add_dependencies(dependencies);
-  }
-  for (const auto &replier_min_channel : m->reply_info.replier_min_channels_) {
-    LOG(INFO) << "Add min replied " << replier_min_channel.first;
-    td_->chat_manager_->add_min_channel(replier_min_channel.first, replier_min_channel.second);
-  }
-  for (auto recent_replier_dialog_id : m->reply_info.recent_replier_dialog_ids_) {
-    dependencies.add_message_sender_dependencies(recent_replier_dialog_id);
-  }
-  if (m->reactions != nullptr) {
-    m->reactions->add_min_channels(td_);
-    m->reactions->add_dependencies(dependencies);
-  }
-  if (m->fact_check != nullptr) {
-    m->fact_check->add_dependencies(dependencies);
-  }
-  add_message_content_dependencies(dependencies, m->content.get(), is_bot);
-  add_reply_markup_dependencies(dependencies, m->reply_markup.get());
-  add_draft_message_dependencies(dependencies, m->thread_draft_message);
-}
-
-void MessagesManager::get_dialog_send_message_as_dialog_ids(
-    DialogId dialog_id, Promise<td_api::object_ptr<td_api::chatMessageSenders>> &&promise, bool is_recursive) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Read, "get_dialog_send_message_as_dialog_ids"));
-  if (!d->default_send_message_as_dialog_id.is_valid() || can_send_message(dialog_id).is_error()) {
-    return promise.set_value(td_api::make_object<td_api::chatMessageSenders>());
-  }
-  // checked in on_update_dialog_default_send_message_as_dialog_id
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  auto is_broadcast = td_->dialog_manager_->is_broadcast_channel(dialog_id);
-  if (is_broadcast && !td_->chat_manager_->get_channel_sign_messages(dialog_id.get_channel_id())) {
-    return promise.set_value(td_api::make_object<td_api::chatMessageSenders>());
-  }
-  if (!td_->user_manager_->have_user(td_->user_manager_->get_my_id())) {
-    auto new_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), dialog_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure_later(actor_id, &MessagesManager::get_dialog_send_message_as_dialog_ids, dialog_id,
-                               std::move(promise), false);
-          }
-        });
-    td_->user_manager_->get_me(std::move(new_promise));
-    return;
-  }
-
-  if (td_->chat_manager_->are_created_public_broadcasts_inited()) {
-    auto senders = td_api::make_object<td_api::chatMessageSenders>();
-    const auto &created_public_broadcasts = td_->chat_manager_->get_created_public_broadcasts();
-    if (!created_public_broadcasts.empty()) {
-      auto add_sender = [&senders, td = td_](DialogId dialog_id, bool needs_premium) {
-        auto sender = get_message_sender_object(td, dialog_id, "get_dialog_send_message_as_dialog_ids");
-        senders->senders_.push_back(td_api::make_object<td_api::chatMessageSender>(std::move(sender), needs_premium));
-      };
-      if (is_broadcast) {
-        add_sender(td_->dialog_manager_->get_my_dialog_id(), false);
-      }
-      if (td_->dialog_manager_->is_anonymous_administrator(dialog_id, nullptr)) {
-        add_sender(dialog_id, false);
-      } else {
-        add_sender(td_->dialog_manager_->get_my_dialog_id(), false);
-      }
-
-      struct Sender {
-        ChannelId channel_id;
-        bool needs_premium;
-      };
-      std::multimap<int64, Sender> sorted_senders;
-
-      bool is_premium = td_->option_manager_->get_option_boolean("is_premium");
-      auto linked_channel_id = td_->chat_manager_->get_channel_linked_channel_id(
-          dialog_id.get_channel_id(), "get_dialog_send_message_as_dialog_ids");
-      for (auto channel_id : created_public_broadcasts) {
-        if (DialogId(channel_id) == dialog_id) {
-          continue;
-        }
-        int64 score = td_->chat_manager_->get_channel_participant_count(channel_id);
-        bool needs_premium = !is_premium && !is_broadcast && channel_id != linked_channel_id &&
-                             !td_->chat_manager_->get_channel_is_verified(channel_id);
-        if (needs_premium) {
-          score -= static_cast<int64>(1) << 40;
-        }
-        if (channel_id == linked_channel_id) {
-          score += static_cast<int64>(1) << 32;
-        }
-        sorted_senders.emplace(-score, Sender{channel_id, needs_premium});
-      };
-
-      for (auto &sender : sorted_senders) {
-        add_sender(DialogId(sender.second.channel_id), sender.second.needs_premium);
-      }
-    }
-    return promise.set_value(std::move(senders));
-  }
-
-  CHECK(!is_recursive);
-  auto new_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, promise = std::move(promise)](
-                                                Result<td_api::object_ptr<td_api::chats>> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      send_closure_later(actor_id, &MessagesManager::get_dialog_send_message_as_dialog_ids, dialog_id,
-                         std::move(promise), true);
-    }
-  });
-  td_->chat_manager_->get_created_public_dialogs(PublicDialogType::ForPersonalDialog, std::move(new_promise), true);
-}
-
-void MessagesManager::set_dialog_default_send_message_as_dialog_id(DialogId dialog_id,
-                                                                   DialogId message_sender_dialog_id,
-                                                                   Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(
-      promise, d,
-      check_dialog_access(dialog_id, false, AccessRights::Read, "set_dialog_default_send_message_as_dialog_id"));
-  if (!d->default_send_message_as_dialog_id.is_valid() || can_send_message(dialog_id).is_error()) {
-    return promise.set_error(Status::Error(400, "Can't change message sender in the chat"));
-  }
-  // checked in on_update_dialog_default_send_message_as_dialog_id
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-
-  auto is_broadcast = td_->dialog_manager_->is_broadcast_channel(dialog_id);
-  auto is_anonymous = td_->dialog_manager_->is_anonymous_administrator(dialog_id, nullptr);
-  switch (message_sender_dialog_id.get_type()) {
-    case DialogType::User:
-      if (message_sender_dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-        return promise.set_error(Status::Error(400, "Can't send messages as another user"));
-      }
-      if (is_anonymous &&
-          (!is_broadcast || !td_->chat_manager_->get_channel_sign_messages(dialog_id.get_channel_id()))) {
-        return promise.set_error(Status::Error(400, "Can't send messages as self"));
-      }
-      break;
-    case DialogType::Chat:
-    case DialogType::Channel:
-    case DialogType::SecretChat:
-      if (is_anonymous && dialog_id == message_sender_dialog_id) {
-        break;
-      }
-      if (!td_->dialog_manager_->is_broadcast_channel(message_sender_dialog_id) ||
-          td_->chat_manager_->get_channel_first_username(message_sender_dialog_id.get_channel_id()).empty()) {
-        return promise.set_error(Status::Error(400, "Message sender chat must be a public channel"));
-      }
-      break;
-    default:
-      return promise.set_error(Status::Error(400, "Invalid message sender specified"));
-  }
-  if (!td_->dialog_manager_->have_input_peer(message_sender_dialog_id, true, AccessRights::Read)) {
-    return promise.set_error(Status::Error(400, "Can't access specified message sender chat"));
-  }
-
-  td_->dialog_action_manager_->cancel_send_dialog_action_queries(dialog_id);
-
-  on_update_dialog_default_send_message_as_dialog_id(dialog_id, message_sender_dialog_id, true);
-
-  td_->dialog_manager_->set_dialog_default_send_as_on_server(dialog_id, message_sender_dialog_id, std::move(promise));
-}
-
-FileUploadId MessagesManager::get_media_file_upload_id(const vector<FileUploadId> &file_upload_ids, int32 media_pos) {
-  if (file_upload_ids.empty()) {
-    return FileUploadId();
-  }
-  if (media_pos == -1) {
-    CHECK(file_upload_ids.size() == 1u);
-    return file_upload_ids[0];
-  }
-  CHECK(static_cast<size_t>(media_pos) < file_upload_ids.size());
-  return file_upload_ids[media_pos];
-}
-
-FileUploadId MessagesManager::get_message_send_file_upload_id(DialogId dialog_id, const Message *m,
-                                                              int32 media_pos) const {
-  if (m->message_id.is_any_server()) {
-    auto edited_message = get_edited_message(dialog_id, m->message_id);
-    if (edited_message == nullptr) {
-      return {};
-    }
-    return get_media_file_upload_id(edited_message->file_upload_ids_, media_pos);
-  }
-  return get_media_file_upload_id(m->file_upload_ids, media_pos);
-}
-
-FileUploadId MessagesManager::get_message_send_thumbnail_file_upload_id(DialogId dialog_id, const Message *m,
-                                                                        int32 media_pos) const {
-  if (m->message_id.is_any_server()) {
-    auto edited_message = get_edited_message(dialog_id, m->message_id);
-    if (edited_message == nullptr) {
-      return {};
-    }
-    return get_media_file_upload_id(edited_message->thumbnail_file_upload_ids_, media_pos);
-  }
-  return get_media_file_upload_id(m->thumbnail_file_upload_ids, media_pos);
-}
-
-void MessagesManager::delete_message_send_thumbnail_file_upload_id(DialogId dialog_id, Message *m, int32 media_pos) {
-  vector<FileUploadId> *file_upload_ids;
-  if (m->message_id.is_any_server()) {
-    auto edited_message = get_edited_message(dialog_id, m->message_id);
-    if (edited_message == nullptr) {
-      return;
-    }
-    file_upload_ids = &edited_message->thumbnail_file_upload_ids_;
-  } else {
-    file_upload_ids = &m->thumbnail_file_upload_ids;
-  }
-  if (file_upload_ids->size() <= 1u) {
-    file_upload_ids->clear();
-    return;
-  }
-  CHECK(static_cast<size_t>(media_pos) < file_upload_ids->size());
-  (*file_upload_ids)[media_pos] = FileUploadId();
-}
-
-class MessagesManager::SendMessageLogEvent {
- public:
-  DialogId dialog_id;
-  const Message *m_in;
-  unique_ptr<Message> message_out;
-
-  SendMessageLogEvent() : dialog_id(), m_in(nullptr) {
-  }
-
-  SendMessageLogEvent(DialogId dialog_id, const Message *m) : dialog_id(dialog_id), m_in(m) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id, storer);
-    td::store(*m_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id, parser);
-    td::parse(message_out, parser);
-  }
-};
-
-Result<td_api::object_ptr<td_api::message>> MessagesManager::send_message(
-    DialogId dialog_id, const MessageId top_thread_message_id,
-    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, tl_object_ptr<td_api::messageSendOptions> &&options,
-    tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-    tl_object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  if (input_message_content == nullptr) {
-    return Status::Error(400, "Can't send message without content");
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "send_message");
-  if (d == nullptr) {
-    if (td_->auth_manager_->is_bot() && options != nullptr && options->allow_paid_broadcast_ &&
-        dialog_id.get_type() == DialogType::User) {
-      td_->user_manager_->get_user_id_object(dialog_id.get_user_id(), nullptr);
-      force_create_dialog(dialog_id, "send_message");
-      d = get_dialog_force(dialog_id, "send_message");
-    }
-    if (d == nullptr) {
-      return Status::Error(400, "Chat not found");
-    }
-  }
-
-  auto input_reply_to = create_message_input_reply_to(d, top_thread_message_id, std::move(reply_to), false);
-
-  if (input_message_content->get_id() == td_api::inputMessageForwarded::ID) {
-    auto input_message = td_api::move_object_as<td_api::inputMessageForwarded>(input_message_content);
-    TRY_RESULT(copy_options, process_message_copy_options(dialog_id, std::move(input_message->copy_options_)));
-    copy_options.input_reply_to = std::move(input_reply_to);
-    TRY_RESULT_ASSIGN(copy_options.reply_markup, get_dialog_reply_markup(dialog_id, std::move(reply_markup)));
-    return forward_message(
-        dialog_id, top_thread_message_id, DialogId(input_message->from_chat_id_), MessageId(input_message->message_id_),
-        std::move(options), input_message->in_game_share_,
-        input_message->replace_video_start_timestamp_ ? max(0, input_message->new_video_start_timestamp_) : -1,
-        std::move(copy_options));
-  }
-
-  TRY_STATUS(can_send_message(dialog_id));
-  TRY_RESULT(message_reply_markup, get_dialog_reply_markup(dialog_id, std::move(reply_markup)));
-  TRY_RESULT(message_send_options, process_message_send_options(dialog_id, std::move(options), true, true, 1));
-  TRY_RESULT(message_content, process_input_message_content(dialog_id, std::move(input_message_content),
-                                                            !message_send_options.allow_paid));
-  TRY_STATUS(can_use_message_send_options(message_send_options, message_content));
-  TRY_STATUS(can_use_top_thread_message_id(d, top_thread_message_id, input_reply_to));
-
-  // there must be no errors after get_message_to_send call
-
-  auto content = dup_message_content(td_, dialog_id, message_content.content.get(), MessageContentDupType::Send,
-                                     MessageCopyOptions());
-  bool need_update_dialog_pos = false;
-  unique_ptr<Message> message;
-  Message *m;
-  if (message_send_options.only_preview) {
-    message = create_message_to_send(d, top_thread_message_id, std::move(input_reply_to), message_send_options,
-                                     std::move(content), message_content.invert_media, false, nullptr, DialogId(),
-                                     message_content.via_bot_user_id.is_valid(), DialogId());
-    m = message.get();
-  } else {
-    m = get_message_to_send(d, top_thread_message_id, std::move(input_reply_to), message_send_options,
-                            std::move(content), message_content.invert_media, &need_update_dialog_pos, false, nullptr,
-                            DialogId(), message_content.via_bot_user_id.is_valid());
-  }
-  m->reply_markup = std::move(message_reply_markup);
-  m->via_bot_user_id = message_content.via_bot_user_id;
-  m->disable_web_page_preview = message_content.disable_web_page_preview;
-  m->clear_draft = message_content.clear_draft;
-  if (message_content.ttl.is_valid()) {
-    m->ttl = message_content.ttl;
-    m->is_content_secret = m->ttl.is_secret_message_content(m->content->get_type());
-  }
-  m->send_emoji = std::move(message_content.emoji);
-
-  if (message_send_options.only_preview) {
-    return get_message_object(dialog_id, m, "send_message");
-  }
-
-  clear_dialog_draft_by_sent_message(d, m, !need_update_dialog_pos);
-
-  save_send_message_log_event(dialog_id, m);
-  do_send_message(dialog_id, m);
-
-  if (!td_->auth_manager_->is_bot()) {
-    send_update_new_message(d, m);
-    if (need_update_dialog_pos) {
-      send_update_chat_last_message(d, "send_message");
-    }
-  }
-
-  return get_message_object(dialog_id, m, "send_message");
-}
-
-Result<InputMessageContent> MessagesManager::process_input_message_content(
-    DialogId dialog_id, tl_object_ptr<td_api::InputMessageContent> &&input_message_content, bool check_permissions) {
-  CHECK(dialog_id.is_valid());
-  if (input_message_content != nullptr && input_message_content->get_id() == td_api::inputMessageForwarded::ID) {
-    // for sendMessageAlbum/editMessageMedia/addLocalMessage
-    auto input_message = td_api::move_object_as<td_api::inputMessageForwarded>(input_message_content);
-    TRY_RESULT(copy_options, process_message_copy_options(dialog_id, std::move(input_message->copy_options_)));
-    if (!copy_options.send_copy) {
-      return Status::Error(400, "Can't use forwarded message");
-    }
-    if (input_message->replace_video_start_timestamp_) {
-      return Status::Error(400, "Can't replace video start timestamp");
-    }
-
-    DialogId from_dialog_id(input_message->from_chat_id_);
-    Dialog *from_dialog = get_dialog_force(from_dialog_id, "send_message copy");
-    if (from_dialog == nullptr) {
-      return Status::Error(400, "Chat to copy message from not found");
-    }
-    if (!td_->dialog_manager_->have_input_peer(from_dialog_id, false, AccessRights::Read)) {
-      return Status::Error(400, "Can't access the chat to copy message from");
-    }
-    MessageId message_id = get_persistent_message_id(from_dialog, MessageId(input_message->message_id_));
-
-    const Message *copied_message = get_message_force(from_dialog, message_id, "process_input_message_content");
-    if (copied_message == nullptr) {
-      return Status::Error(400, "Can't find message to copy");
-    }
-    if (!can_forward_message(from_dialog_id, copied_message)) {
-      return Status::Error(400, "Can't copy message");
-    }
-    if (!can_save_message(from_dialog_id, copied_message) && !td_->auth_manager_->is_bot()) {
-      return Status::Error(400, "Message copying is restricted");
-    }
-
-    auto new_invert_media =
-        copy_options.replace_caption && is_allowed_invert_caption_message_content(copied_message->content->get_type())
-            ? copy_options.new_invert_media
-            : copied_message->invert_media;
-    unique_ptr<MessageContent> content = dup_message_content(td_, dialog_id, copied_message->content.get(),
-                                                             MessageContentDupType::Copy, std::move(copy_options));
-    if (content == nullptr) {
-      return Status::Error(400, "Can't copy message content");
-    }
-
-    return InputMessageContent(std::move(content), get_message_disable_web_page_preview(copied_message),
-                               new_invert_media, false, MessageSelfDestructType(), UserId(),
-                               copied_message->send_emoji);
-  }
-
-  bool is_premium = td_->option_manager_->get_option_boolean("is_premium");
-  TRY_RESULT(content, get_input_message_content(dialog_id, std::move(input_message_content), td_, is_premium));
-  TRY_STATUS(can_send_message_content(dialog_id, content.content.get(), false, check_permissions, td_));
-  return std::move(content);
-}
-
-Result<MessageCopyOptions> MessagesManager::process_message_copy_options(
-    DialogId dialog_id, tl_object_ptr<td_api::messageCopyOptions> &&options) const {
-  if (options == nullptr || !options->send_copy_) {
-    return MessageCopyOptions();
-  }
-  MessageCopyOptions result;
-  result.send_copy = true;
-  result.replace_caption = options->replace_caption_;
-  if (result.replace_caption) {
-    TRY_RESULT_ASSIGN(result.new_caption, get_formatted_text(td_, dialog_id, std::move(options->new_caption_),
-                                                             td_->auth_manager_->is_bot(), true, false, false));
-    result.new_invert_media = options->new_show_caption_above_media_;
-  }
-  return std::move(result);
-}
-
-Status MessagesManager::check_paid_message_star_count(int64 &paid_message_star_count, int32 message_count) const {
-  if (paid_message_star_count < 0 || paid_message_star_count > 1000000) {
-    return Status::Error(400, "Invalid price for paid message specified");
-  }
-  CHECK(message_count > 0);
-  if (paid_message_star_count % message_count != 0) {
-    return Status::Error(400, "Invalid price for paid messages specified");
-  }
-  if (paid_message_star_count > 0 && !td_->star_manager_->has_owned_star_count(paid_message_star_count)) {
-    return Status::Error(400, "Have not enough Telegram Stars");
-  }
-  paid_message_star_count /= message_count;
-  return Status::OK();
-}
-
-Result<MessagesManager::MessageSendOptions> MessagesManager::process_message_send_options(
-    DialogId dialog_id, tl_object_ptr<td_api::messageSendOptions> &&options, bool allow_update_stickersets_order,
-    bool allow_effect, int32 message_count) const {
-  MessageSendOptions result;
-  if (options == nullptr) {
-    return std::move(result);
-  }
-
-  result.disable_notification = options->disable_notification_;
-  result.from_background = options->from_background_;
-  if (allow_update_stickersets_order) {
-    result.update_stickersets_order = options->update_order_of_installed_sticker_sets_;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    result.protect_content = options->protect_content_;
-    result.allow_paid = options->allow_paid_broadcast_;
-  } else {
-    result.paid_message_star_count = options->paid_message_star_count_;
-    TRY_STATUS(check_paid_message_star_count(result.paid_message_star_count, message_count));
-  }
-  result.only_preview = options->only_preview_;
-  TRY_RESULT_ASSIGN(result.schedule_date, get_message_schedule_date(std::move(options->scheduling_state_)));
-  result.sending_id = options->sending_id_;
-
-  if (result.schedule_date != 0) {
-    auto dialog_type = dialog_id.get_type();
-    if (dialog_type == DialogType::SecretChat) {
-      return Status::Error(400, "Can't schedule messages in secret chats");
-    }
-    if (td_->auth_manager_->is_bot()) {
-      return Status::Error(400, "Bots can't send scheduled messages");
-    }
-
-    if (result.schedule_date == SCHEDULE_WHEN_ONLINE_DATE) {
-      if (dialog_type != DialogType::User) {
-        return Status::Error(400, "Messages can be scheduled till online only in private chats");
-      }
-      if (dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-        return Status::Error(400, "Can't scheduled till online messages in chat with self");
-      }
-    }
-    if (result.paid_message_star_count > 0) {
-      return Status::Error(400, "Can't schedule paid messages");
-    }
-  }
-  if (options->effect_id_ != 0) {
-    auto dialog_type = dialog_id.get_type();
-    if (dialog_type != DialogType::User) {
-      return Status::Error(400, "Can't use message effects in the chat");
-    }
-    if (!allow_effect) {
-      return Status::Error(400, "Can't use message effects in the method");
-    }
-    result.effect_id = MessageEffectId(options->effect_id_);
-  }
-
-  return std::move(result);
-}
-
-Status MessagesManager::can_use_message_send_options(const MessageSendOptions &options,
-                                                     const unique_ptr<MessageContent> &content,
-                                                     MessageSelfDestructType ttl) {
-  if (options.schedule_date != 0) {
-    if (ttl.is_valid()) {
-      return Status::Error(400, "Can't send scheduled self-destructing messages");
-    }
-    if (content->get_type() == MessageContentType::LiveLocation) {
-      return Status::Error(400, "Can't send scheduled live location messages");
-    }
-  }
-
-  return Status::OK();
-}
-
-Status MessagesManager::can_use_message_send_options(const MessageSendOptions &options,
-                                                     const InputMessageContent &content) {
-  return can_use_message_send_options(options, content.content, content.ttl);
-}
-
-Status MessagesManager::can_use_top_thread_message_id(Dialog *d, MessageId top_thread_message_id,
-                                                      const MessageInputReplyTo &input_reply_to) {
-  if (top_thread_message_id == MessageId()) {
-    return Status::OK();
-  }
-
-  if (!top_thread_message_id.is_valid() || !top_thread_message_id.is_server()) {
-    return Status::Error(400, "Invalid message thread identifier specified");
-  }
-  if (d->dialog_id.get_type() != DialogType::Channel || td_->dialog_manager_->is_broadcast_channel(d->dialog_id)) {
-    return Status::Error(400, "Chat doesn't have threads");
-  }
-  if (input_reply_to.get_story_full_id().is_valid()) {
-    return Status::Error(400, "Can't send story replies to the thread");
-  }
-  auto same_chat_reply_to_message_id = input_reply_to.get_same_chat_reply_to_message_id();
-  if (same_chat_reply_to_message_id.is_valid()) {
-    const Message *reply_m = get_message_force(d, same_chat_reply_to_message_id, "can_use_top_thread_message_id 1");
-    if (reply_m != nullptr && top_thread_message_id != reply_m->top_thread_message_id) {
-      if (reply_m->top_thread_message_id.is_valid() || reply_m->media_album_id == 0) {
-        return Status::Error(400, "The message to be replied is not in the specified message thread");
-      }
-
-      // if the message is in an album and not in the thread, it can be in the album of top_thread_message_id
-      const Message *top_m = get_message_force(d, top_thread_message_id, "can_use_top_thread_message_id 2");
-      if (top_m != nullptr &&
-          (top_m->media_album_id != reply_m->media_album_id || top_m->top_thread_message_id != top_m->message_id)) {
-        return Status::Error(400, "The message to be replied is not in the specified message thread root album");
-      }
-    }
-  }
-
-  return Status::OK();
-}
-
-int64 MessagesManager::generate_new_media_album_id() {
-  int64 media_album_id = 0;
-  do {
-    media_album_id = Random::secure_int64();
-  } while (media_album_id >= 0 || pending_message_group_sends_.count(media_album_id) != 0);
-  return media_album_id;
-}
-
-Result<td_api::object_ptr<td_api::messages>> MessagesManager::send_message_group(
-    DialogId dialog_id, const MessageId top_thread_message_id,
-    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, tl_object_ptr<td_api::messageSendOptions> &&options,
-    vector<tl_object_ptr<td_api::InputMessageContent>> &&input_message_contents) {
-  Dialog *d = get_dialog_force(dialog_id, "send_message_group");
-  if (d == nullptr) {
-    if (td_->auth_manager_->is_bot() && options != nullptr && options->allow_paid_broadcast_ &&
-        dialog_id.get_type() == DialogType::User) {
-      td_->user_manager_->get_user_id_object(dialog_id.get_user_id(), nullptr);
-      force_create_dialog(dialog_id, "send_message_group");
-      d = get_dialog_force(dialog_id, "send_message_group");
-    }
-    if (d == nullptr) {
-      return Status::Error(400, "Chat not found");
-    }
-  }
-  if (input_message_contents.empty()) {
-    return Status::Error(400, "There are no messages to send");
-  }
-
-  TRY_STATUS(can_send_message(dialog_id));
-  TRY_RESULT(message_send_options, process_message_send_options(dialog_id, std::move(options), true, true,
-                                                                static_cast<int32>(input_message_contents.size())));
-
-  vector<InputMessageContent> message_contents;
-  for (auto &input_message_content : input_message_contents) {
-    TRY_RESULT(message_content, process_input_message_content(dialog_id, std::move(input_message_content),
-                                                              !message_send_options.allow_paid));
-    TRY_STATUS(can_use_message_send_options(message_send_options, message_content));
-    message_contents.push_back(std::move(message_content));
-  }
-  TRY_STATUS(check_message_group_message_contents(message_contents));
-
-  auto input_reply_to = create_message_input_reply_to(d, top_thread_message_id, std::move(reply_to), false);
-  TRY_STATUS(can_use_top_thread_message_id(d, top_thread_message_id, input_reply_to));
-
-  int64 media_album_id = 0;
-  if (message_contents.size() > 1) {
-    media_album_id = generate_new_media_album_id();
-  }
-
-  // there must be no errors after get_message_to_send calls
-
-  vector<tl_object_ptr<td_api::message>> result;
-  bool need_update_dialog_pos = false;
-  for (size_t i = 0; i < message_contents.size(); i++) {
-    auto &message_content = message_contents[i];
-    unique_ptr<Message> message;
-    Message *m;
-    if (message_send_options.only_preview) {
-      message = create_message_to_send(d, top_thread_message_id, input_reply_to.clone(), message_send_options,
-                                       std::move(message_content.content), message_content.invert_media, i != 0,
-                                       nullptr, DialogId(), false, DialogId());
-      m = message.get();
-    } else {
-      m = get_message_to_send(d, top_thread_message_id, input_reply_to.clone(), message_send_options,
-                              dup_message_content(td_, dialog_id, message_content.content.get(),
-                                                  MessageContentDupType::Send, MessageCopyOptions()),
-                              message_content.invert_media, &need_update_dialog_pos, i != 0);
-    }
-
-    auto ttl = message_content.ttl;
-    if (ttl.is_valid()) {
-      m->ttl = ttl;
-      m->is_content_secret = m->ttl.is_secret_message_content(m->content->get_type());
-    }
-    m->media_album_id = media_album_id;
-
-    result.push_back(get_message_object(dialog_id, m, "send_message_group"));
-
-    if (!message_send_options.only_preview) {
-      save_send_message_log_event(dialog_id, m);
-      do_send_message(dialog_id, m);
-
-      if (!td_->auth_manager_->is_bot()) {
-        send_update_new_message(d, m);
-      }
-    }
-  }
-
-  if (need_update_dialog_pos) {
-    CHECK(!message_send_options.only_preview);
-    send_update_chat_last_message(d, "send_message_group");
-  }
-
-  return get_messages_object(-1, std::move(result), false);
-}
-
-void MessagesManager::save_send_message_log_event(DialogId dialog_id, const Message *m) {
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  CHECK(m != nullptr);
-  LOG(INFO) << "Save " << MessageFullId(dialog_id, m->message_id) << " to binlog";
-  auto log_event = SendMessageLogEvent(dialog_id, m);
-  CHECK(m->send_message_log_event_id == 0);
-  m->send_message_log_event_id =
-      binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SendMessage, get_log_event_storer(log_event));
-}
-
-void MessagesManager::on_cover_upload(DialogId dialog_id, MessageId message_id, uint64 edit_generation, int32 media_pos,
-                                      vector<int> bad_parts, Result<Unit> result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  MessageFullId message_full_id{dialog_id, message_id};
-  const Message *m = get_message(message_full_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel, do not need to send or edit it
-    // file upload should be already canceled in cancel_send_message_query
-    LOG(INFO) << "Message with a cover has already been deleted";
-    return;
-  }
-
-  bool is_edit = m->message_id.is_any_server();
-  auto can_send_status = can_send_message(dialog_id);
-  if (!is_edit && can_send_status.is_error()) {
-    // user has left the chat during upload of the file or lost their privileges
-    LOG(INFO) << "Can't send a message to " << dialog_id << ": " << can_send_status;
-
-    fail_send_message(message_full_id, std::move(can_send_status));
-    return;
-  }
-
-  if (result.is_error()) {
-    if (is_edit) {
-      if (m->edit_generation == edit_generation) {
-        fail_edit_message_media(message_full_id, result.move_as_error());
-      }
-    } else {
-      fail_send_message(message_full_id, result.move_as_error());
-    }
-  } else {
-    do_send_message(dialog_id, m, media_pos, std::move(bad_parts));
-  }
-}
-
-void MessagesManager::do_send_message(DialogId dialog_id, const Message *m, int32 media_pos, vector<int> bad_parts) {
-  bool is_edit = m->message_id.is_any_server();
-  LOG(INFO) << "Do " << (is_edit ? "edit" : "send") << ' ' << MessageFullId(dialog_id, m->message_id);
-  bool is_secret = dialog_id.get_type() == DialogType::SecretChat;
-
-  if (m->media_album_id != 0 && bad_parts.empty() && !is_secret && !is_edit) {
-    auto &request = pending_message_group_sends_[m->media_album_id];
-    if (!td::contains(request.message_ids, m->message_id)) {
-      request.dialog_id = dialog_id;
-      request.message_ids.push_back(m->message_id);
-      request.is_finished.push_back(false);
-      request.results.push_back(Status::OK());
-    }
-  }
-
-  const EditedMessage *edited_message = nullptr;
-  if (is_edit) {
-    edited_message = get_edited_message(dialog_id, m->message_id);
-    CHECK(edited_message != nullptr);
-  }
-
-  auto content = is_edit ? edited_message->content_.get() : m->content.get();
-  CHECK(content != nullptr);
-  auto content_type = content->get_type();
-  if (content_type == MessageContentType::Text) {
-    CHECK(!is_edit);
-    send_closure_later(actor_id(this), &MessagesManager::on_text_message_ready_to_send, dialog_id, m->message_id);
-    return;
-  }
-
-  if (!is_secret) {
-    auto covers = get_message_content_need_to_upload_covers(td_, content);
-    if (!covers.empty()) {
-      return td_->message_query_manager_->upload_message_covers(
-          BusinessConnectionId(), dialog_id, std::move(covers),
-          PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, message_id = m->message_id,
-                                  edit_generation = m->edit_generation, media_pos,
-                                  bad_parts = std::move(bad_parts)](Result<Unit> result) mutable {
-            send_closure(actor_id, &MessagesManager::on_cover_upload, dialog_id, message_id, edit_generation, media_pos,
-                         std::move(bad_parts), std::move(result));
-          }));
-    }
-  }
-
-  if (bad_parts.empty()) {
-    auto file_ids = get_message_content_any_file_ids(content);  // any_file_ids, because it could be a photo sent by ID
-    auto thumbnail_file_ids = get_message_content_thumbnail_file_ids(content, td_);
-    if (file_ids.size() != thumbnail_file_ids.size()) {
-      CHECK(file_ids.size() == 1u);
-      CHECK(thumbnail_file_ids.empty());
-    }
-    if (!is_secret) {
-      for (size_t i = 0; i < thumbnail_file_ids.size(); i++) {
-        FileView file_view = td_->file_manager_->get_file_view(file_ids[i]);
-        if (get_file_type_class(file_view.get_type()) == FileTypeClass::Photo) {
-          thumbnail_file_ids[i] = FileId();
-        }
-      }
-    }
-    auto file_upload_ids = transform(
-        file_ids, [](FileId file_id) { return FileUploadId(file_id, FileManager::get_internal_upload_id()); });
-    auto thumbnail_file_upload_ids = transform(thumbnail_file_ids, [](FileId file_id) {
-      return file_id.is_valid() ? FileUploadId(file_id, FileManager::get_internal_upload_id()) : FileUploadId();
-    });
-    if (is_edit) {
-      edited_message->file_upload_ids_ = std::move(file_upload_ids);
-      edited_message->thumbnail_file_upload_ids_ = std::move(thumbnail_file_upload_ids);
-    } else {
-      m->file_upload_ids = std::move(file_upload_ids);
-      m->thumbnail_file_upload_ids = std::move(thumbnail_file_upload_ids);
-    }
-  }
-  const auto &file_upload_ids = is_edit ? edited_message->file_upload_ids_ : m->file_upload_ids;
-  LOG(DEBUG) << "Need to send files " << file_upload_ids;
-  if (!bad_parts.empty()) {
-    CHECK(file_upload_ids.size() <= 1u || media_pos >= 0);
-  }
-  if (is_secret) {
-    CHECK(file_upload_ids.size() <= 1u);
-    auto file_upload_id = file_upload_ids.empty() ? FileUploadId() : file_upload_ids[0];
-
-    CHECK(!is_edit);
-    auto layer = td_->user_manager_->get_secret_chat_layer(dialog_id.get_secret_chat_id());
-    auto secret_input_media = get_message_content_secret_input_media(content, td_, nullptr, BufferSlice(), layer);
-    if (secret_input_media.empty()) {
-      LOG(INFO) << "Ask to upload encrypted " << file_upload_id;
-      CHECK(file_upload_id.is_valid());
-      FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-      CHECK(file_view.is_encrypted_secret());
-      bool is_inserted = being_uploaded_files_
-                             .emplace(file_upload_id,
-                                      UploadedFileInfo{MessageFullId(dialog_id, m->message_id), -1, m->edit_generation})
-                             .second;
-      CHECK(is_inserted);
-      // need to call resume_upload synchronously to make upload process consistent with being_uploaded_files_
-      td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_media_callback_, 1,
-                                        m->message_id.get());
-    } else {
-      on_secret_message_media_uploaded(dialog_id, m, std::move(secret_input_media));
-    }
-  } else {
-    if (media_pos >= 0) {
-      CHECK(!bad_parts.empty());
-      CHECK(static_cast<size_t>(media_pos) < file_upload_ids.size());
-    }
-    auto input_media = get_message_content_input_media(content, td_, m->ttl, m->send_emoji,
-                                                       td_->auth_manager_->is_bot() && bad_parts.empty());
-    if (input_media == nullptr || media_pos >= 0 || !bad_parts.empty() ||
-        content_type == MessageContentType::PaidMedia) {
-      if (content_type == MessageContentType::Game || content_type == MessageContentType::Poll ||
-          content_type == MessageContentType::Story) {
-        return;
-      }
-      CHECK(!file_upload_ids.empty());
-      if (content_type == MessageContentType::PaidMedia && bad_parts.empty()) {
-        CHECK(!is_secret && !is_edit);
-        CHECK(media_pos == -1);
-        LOG(INFO) << "Add paid media group send for " << MessageFullId{dialog_id, m->message_id};
-        auto &request = pending_paid_media_group_sends_[{dialog_id, m->message_id}];
-        CHECK(request.is_finished.empty());
-        request.is_finished.resize(file_upload_ids.size());
-        request.results.resize(file_upload_ids.size());
-      }
-      for (size_t i = 0; i < file_upload_ids.size(); i++) {
-        if (media_pos >= 0 && static_cast<size_t>(media_pos) != i) {
-          continue;
-        }
-        auto file_upload_id = file_upload_ids[i];
-        CHECK(file_upload_id.is_valid());
-
-        FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-        if (content_type == MessageContentType::PaidMedia && !file_view.has_full_remote_location() &&
-            file_view.has_url()) {
-          do_send_media(dialog_id, m, static_cast<int32>(i), nullptr, nullptr);
-          continue;
-        }
-
-        LOG(INFO) << "Ask to upload " << file_upload_id << " with bad parts " << bad_parts;
-        bool is_inserted =
-            being_uploaded_files_
-                .emplace(file_upload_id,
-                         UploadedFileInfo{MessageFullId(dialog_id, m->message_id),
-                                          content_type == MessageContentType::PaidMedia ? static_cast<int32>(i) : -1,
-                                          m->edit_generation})
-                .second;
-        CHECK(is_inserted);
-        // need to call resume_upload synchronously to make upload process consistent with being_uploaded_files_
-        // and to send is_uploading_active == true in the updates
-        td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_media_callback_, 1,
-                                          m->message_id.get());
-      }
-    } else {
-      on_message_media_uploaded(dialog_id, m, -1, std::move(input_media));
-    }
-  }
-}
-
-void MessagesManager::on_message_media_uploaded(DialogId dialog_id, const Message *m, int32 media_pos,
-                                                telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(m != nullptr);
-  CHECK(input_media != nullptr);
-  auto message_id = m->message_id;
-  if (message_id.is_any_server()) {
-    CHECK(media_pos == -1);
-    const auto *edited_message = get_edited_message(dialog_id, m->message_id);
-    CHECK(edited_message != nullptr);
-    CHECK(edited_message->file_upload_ids_.size() == 1u);
-    auto file_upload_id = get_message_send_file_upload_id(dialog_id, m, media_pos);
-    auto thumbnail_file_upload_id = get_message_send_thumbnail_file_upload_id(dialog_id, m, media_pos);
-    auto cover_file_id = get_message_content_cover_any_file_id(edited_message->content_.get());
-    const FormattedText *caption = get_message_content_caption(edited_message->content_.get());
-    auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), edited_message->reply_markup_);
-    bool was_uploaded = FileManager::extract_was_uploaded(input_media);
-    bool was_thumbnail_uploaded = FileManager::extract_was_thumbnail_uploaded(input_media);
-
-    LOG(INFO) << "Edit media from " << message_id << " in " << dialog_id;
-    auto schedule_date = get_message_schedule_date(m);
-    auto promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), dialog_id, message_id, file_upload_id, thumbnail_file_upload_id, cover_file_id,
-         schedule_date, generation = m->edit_generation, was_uploaded, was_thumbnail_uploaded,
-         file_reference = FileManager::extract_file_reference(input_media),
-         cover_file_reference = FileManager::extract_cover_file_reference(input_media)](Result<int32> result) mutable {
-          send_closure(actor_id, &MessagesManager::on_message_media_edited, dialog_id, message_id, file_upload_id,
-                       thumbnail_file_upload_id, cover_file_id, was_uploaded, was_thumbnail_uploaded,
-                       std::move(file_reference), std::move(cover_file_reference), schedule_date, generation,
-                       std::move(result));
-        });
-    td_->create_handler<EditMessageQuery>(std::move(promise))
-        ->send(1 << 11, dialog_id, message_id, caption == nullptr ? "" : caption->text,
-               get_input_message_entities(td_->user_manager_.get(), caption, "edit_message_media"),
-               std::move(input_media), edited_message->invert_media_, std::move(input_reply_markup), schedule_date,
-               true);
-    return;
-  }
-
-  if (m->media_album_id == 0 && media_pos == -1) {
-    send_closure_later(actor_id(this), &MessagesManager::on_media_message_ready_to_send, dialog_id, message_id,
-                       PromiseCreator::lambda([this, dialog_id,
-                                               input_media = std::move(input_media)](Result<Message *> result) mutable {
-                         if (G()->close_flag() || result.is_error()) {
-                           return;
-                         }
-
-                         auto m = result.move_as_ok();
-                         CHECK(m != nullptr);
-                         CHECK(input_media != nullptr);
-
-                         const FormattedText *caption = get_message_content_caption(m->content.get());
-                         LOG(INFO) << "Send media from " << m->message_id << " in " << dialog_id;
-                         int64 random_id = begin_send_message(dialog_id, m);
-                         td_->create_handler<SendMediaQuery>()->send(
-                             m->file_upload_ids, m->thumbnail_file_upload_ids,
-                             get_message_content_cover_any_file_ids(m->content.get()), get_message_flags(m), dialog_id,
-                             get_send_message_as_input_peer(m), *get_message_input_reply_to(m),
-                             m->initial_top_thread_message_id, get_message_schedule_date(m), m->effect_id,
-                             m->paid_message_star_count,
-                             get_input_reply_markup(td_->user_manager_.get(), m->reply_markup),
-                             get_input_message_entities(td_->user_manager_.get(), caption, "on_message_media_uploaded"),
-                             caption == nullptr ? "" : caption->text, std::move(input_media), m->content->get_type(),
-                             m->is_copy, random_id, &m->send_query_ref);
-                       }));
-  } else {
-    if (!is_uploaded_input_media(input_media)) {
-      auto file_upload_id = get_message_send_file_upload_id(dialog_id, m, media_pos);
-      auto thumbnail_file_upload_id = get_message_send_thumbnail_file_upload_id(dialog_id, m, media_pos);
-      auto cover_file_ids = get_message_content_cover_any_file_ids(m->content.get());
-      FileId cover_file_id;
-      if (!cover_file_ids.empty()) {
-        if (media_pos == -1) {
-          CHECK(cover_file_ids.size() == 1u);
-          cover_file_id = cover_file_ids[0];
-        } else {
-          CHECK(static_cast<size_t>(media_pos) < cover_file_ids.size());
-          cover_file_id = cover_file_ids[media_pos];
-        }
-      }
-      td_->create_handler<UploadMediaQuery>()->send(dialog_id, message_id, media_pos, file_upload_id,
-                                                    thumbnail_file_upload_id, cover_file_id, std::move(input_media));
-    } else {
-      send_closure_later(actor_id(this), &MessagesManager::on_upload_message_media_finished, m->media_album_id,
-                         dialog_id, message_id, media_pos, Status::OK());
-    }
-  }
-}
-
-void MessagesManager::on_secret_message_media_uploaded(DialogId dialog_id, const Message *m,
-                                                       SecretInputMedia &&secret_input_media) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(m != nullptr);
-  CHECK(m->message_id.is_valid());
-  if (secret_input_media.empty()) {
-    // the media can't be sent to the chat
-    LOG(INFO) << "Can't send a media message to " << dialog_id;
-
-    fail_send_message({dialog_id, m->message_id}, Status::Error(400, "The file can't be sent to the secret chat"));
-    return;
-  }
-
-  /*
-  if (m->media_album_id != 0) {
-    switch (secret_input_media->input_file_->get_id()) {
-      case telegram_api::inputEncryptedFileUploaded::ID:
-      case telegram_api::inputEncryptedFileBigUploaded::ID:
-        LOG(INFO) << "Upload media from " << m->message_id << " in " << dialog_id;
-        return td_->create_handler<UploadEncryptedMediaQuery>()->send(dialog_id, m->message_id, std::move(secret_input_media));
-      case telegram_api::inputEncryptedFile::ID:
-        return send_closure_later(actor_id(this), &MessagesManager::on_upload_message_media_finished, m->media_album_id,
-                           dialog_id, m->message_id, -1, Status::OK());
-      default:
-        LOG(ERROR) << "Have wrong secret input media " << to_string(secret_input_media->input_file_);
-        return send_closure_later(actor_id(this), &MessagesManager::on_upload_message_media_finished, m->media_album_id,
-                           dialog_id, m->message_id, -1, Status::Error(400, "Invalid input media"));
-  }
-  */
-  // TODO use file_upload_id, was_uploaded,
-  // invalidate partial remote location for file_upload_id in case of failed upload even message has already been deleted
-  send_closure_later(actor_id(this), &MessagesManager::on_media_message_ready_to_send, dialog_id, m->message_id,
-                     PromiseCreator::lambda([this, dialog_id, secret_input_media = std::move(secret_input_media)](
-                                                Result<Message *> result) mutable {
-                       if (G()->close_flag() || result.is_error()) {
-                         return;
-                       }
-
-                       auto m = result.move_as_ok();
-                       CHECK(m != nullptr);
-                       CHECK(!secret_input_media.empty());
-                       send_secret_message(dialog_id, m, std::move(secret_input_media));
-                     }));
-}
-
-void MessagesManager::send_secret_message(DialogId dialog_id, const Message *m, SecretInputMedia media) {
-  CHECK(dialog_id.get_type() == DialogType::SecretChat);
-  int64 random_id = begin_send_message(dialog_id, m);
-
-  auto text = get_message_content_text(m->content.get());
-  vector<tl_object_ptr<secret_api::MessageEntity>> entities;
-  if (text != nullptr && !text->entities.empty()) {
-    auto layer = td_->user_manager_->get_secret_chat_layer(dialog_id.get_secret_chat_id());
-    entities = get_input_secret_message_entities(text->entities, layer);
-  }
-
-  int32 flags = 0;
-  if (m->reply_to_random_id != 0) {
-    flags |= secret_api::decryptedMessage::REPLY_TO_RANDOM_ID_MASK;
-  }
-  if (m->via_bot_user_id.is_valid()) {
-    flags |= secret_api::decryptedMessage::VIA_BOT_NAME_MASK;
-  }
-  if (!media.empty()) {
-    flags |= secret_api::decryptedMessage::MEDIA_MASK;
-  }
-  if (!entities.empty()) {
-    flags |= secret_api::decryptedMessage::ENTITIES_MASK;
-  }
-  if (m->media_album_id != 0) {
-    CHECK(m->media_album_id < 0);
-    flags |= secret_api::decryptedMessage::GROUPED_ID_MASK;
-  }
-  if (m->disable_notification) {
-    flags |= secret_api::decryptedMessage::SILENT_MASK;
-  }
-
-  send_closure(
-      td_->secret_chats_manager_, &SecretChatsManager::send_message, dialog_id.get_secret_chat_id(),
-      make_tl_object<secret_api::decryptedMessage>(
-          flags, false /*ignored*/, random_id, m->ttl.get_input_ttl(),
-          m->content->get_type() == MessageContentType::Text ? text->text : string(), std::move(media.decrypted_media_),
-          std::move(entities), td_->user_manager_->get_user_first_username(m->via_bot_user_id), m->reply_to_random_id,
-          -m->media_album_id),
-      std::move(media.input_file_), Promise<Unit>());
-}
-
-void MessagesManager::on_upload_message_media_success(DialogId dialog_id, MessageId message_id, int32 media_pos,
-                                                      telegram_api::object_ptr<telegram_api::MessageMedia> &&media) {
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  CHECK(message_id.is_valid() || message_id.is_valid_scheduled());
-  CHECK(message_id.is_yet_unsent());
-  Message *m = get_message(d, message_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel
-    // don't need to send error to the user, because the message has already been deleted
-    // and there is nothing to be deleted from the server
-    LOG(INFO) << "Don't need to send already deleted by the user or sent to an inaccessible chat "
-              << MessageFullId{dialog_id, message_id};
-    return;
-  }
-
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    return;  // the message should be deleted soon
-  }
-
-  auto content = get_uploaded_message_content(td_, m->content.get(), media_pos, std::move(media), dialog_id, m->date,
-                                              "on_upload_message_media_success");
-  bool is_content_changed = false;
-  bool need_update =
-      update_message_content(dialog_id, m, std::move(content), media_pos == -1, true, is_content_changed);
-  if (need_update || media_pos >= 0) {
-    send_update_message_content(d, m, true, "on_upload_message_media_success");
-  }
-  if (is_content_changed || need_update || media_pos >= 0) {
-    on_message_changed(d, m, need_update, "on_upload_message_media_success");
-  }
-  cancel_upload_file(get_message_send_file_upload_id(dialog_id, m, media_pos), "on_upload_message_media_success");
-
-  auto input_media = get_message_content_input_media(m->content.get(), td_, m->ttl, m->send_emoji, true, media_pos);
-  Status result;
-  if (input_media == nullptr) {
-    result = Status::Error(400, "Failed to upload file");
-  }
-
-  send_closure_later(actor_id(this), &MessagesManager::on_upload_message_media_finished, m->media_album_id, dialog_id,
-                     m->message_id, media_pos, std::move(result));
-}
-
-void MessagesManager::on_upload_message_media_file_parts_missing(DialogId dialog_id, MessageId message_id,
-                                                                 int32 media_pos, vector<int> &&bad_parts) {
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  Message *m = get_message(d, message_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel
-    // don't need to send error to the user, because the message has already been deleted
-    // and there is nothing to be deleted from the server
-    LOG(INFO) << "Don't need to send already deleted by the user or sent to an inaccessible chat "
-              << MessageFullId{dialog_id, message_id};
-    return;
-  }
-
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    return;  // the message should be deleted soon
-  }
-
-  CHECK(dialog_id.get_type() != DialogType::SecretChat);
-
-  do_send_message(dialog_id, m, media_pos, std::move(bad_parts));
-}
-
-void MessagesManager::on_upload_message_media_fail(DialogId dialog_id, MessageId message_id, int32 media_pos,
-                                                   Status error) {
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  Message *m = get_message(d, message_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel
-    // don't need to send error to the user, because the message has already been deleted
-    // and there is nothing to be deleted from the server
-    LOG(INFO) << "Don't need to send already deleted by the user or sent to an inaccessible chat "
-              << MessageFullId{dialog_id, message_id};
-    return;
-  }
-
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    return;  // the message should be deleted soon
-  }
-
-  CHECK(dialog_id.get_type() != DialogType::SecretChat);
-
-  send_closure_later(actor_id(this), &MessagesManager::on_upload_message_media_finished, m->media_album_id, dialog_id,
-                     m->message_id, media_pos, std::move(error));
-}
-
-void MessagesManager::on_upload_message_media_finished(int64 media_album_id, DialogId dialog_id, MessageId message_id,
-                                                       int32 media_pos, Status result) {
-  if (media_pos >= 0) {
-    CHECK(media_album_id == 0);
-    LOG(INFO) << "Finished to upload media " << media_pos << " from " << message_id << " in " << dialog_id;
-    auto it = pending_paid_media_group_sends_.find({dialog_id, message_id});
-    if (it == pending_paid_media_group_sends_.end()) {
-      LOG(INFO) << "The message doesn't need to be sent";
-      // the message may be already sent or failed to be sent
-      return;
-    }
-    auto &request = it->second;
-    CHECK(static_cast<size_t>(media_pos) < request.is_finished.size());
-    if (request.is_finished[media_pos]) {
-      LOG(INFO) << "Upload media of " << message_id << " in " << dialog_id << " at pos " << media_pos
-                << " was already finished";
-      return;
-    }
-    LOG(INFO) << "Finish to upload media of " << message_id << " in " << dialog_id << " at pos " << media_pos
-              << " out of " << request.is_finished.size() << " with result " << result
-              << " and previous finished_count = " << request.finished_count;
-
-    request.results[media_pos] = std::move(result);
-    request.is_finished[media_pos] = true;
-    request.finished_count++;
-
-    if (request.finished_count == request.results.size() || request.results[media_pos].is_error()) {
-      on_media_message_ready_to_send(dialog_id, message_id,
-                                     PromiseCreator::lambda([this, dialog_id](Result<Message *> result) mutable {
-                                       if (G()->close_flag() || result.is_error()) {
-                                         return;
-                                       }
-
-                                       auto m = result.move_as_ok();
-                                       CHECK(m != nullptr);
-                                       do_send_paid_media_group(dialog_id, m->message_id);
-                                     }));
-    }
-    return;
-  }
-  CHECK(media_album_id < 0);
-  auto it = pending_message_group_sends_.find(media_album_id);
-  if (it == pending_message_group_sends_.end()) {
-    // the group may be already sent or failed to be sent
-    return;
-  }
-  auto &request = it->second;
-  CHECK(request.dialog_id == dialog_id);
-  auto message_it = std::find(request.message_ids.begin(), request.message_ids.end(), message_id);
-  if (message_it == request.message_ids.end()) {
-    // the message may be already deleted and the album is recreated without it
-    CHECK(message_id.is_yet_unsent());
-    LOG_CHECK(get_message({dialog_id, message_id}) == nullptr)
-        << dialog_id << ' ' << request.message_ids << ' ' << message_id << ' ' << request.finished_count << ' '
-        << request.is_finished << ' ' << request.results;
-    return;
-  }
-  auto pos = static_cast<size_t>(message_it - request.message_ids.begin());
-
-  if (request.is_finished[pos]) {
-    LOG(INFO) << "Upload media of " << message_id << " in " << dialog_id << " from group " << media_album_id
-              << " at pos " << pos << " out of " << request.results.size() << " was already finished";
-    return;
-  }
-  LOG(INFO) << "Finish to upload media of " << message_id << " in " << dialog_id << " from group " << media_album_id
-            << " at pos " << pos << " out of " << request.results.size() << " with result " << result
-            << " and previous finished_count = " << request.finished_count;
-
-  request.results[pos] = std::move(result);
-  request.is_finished[pos] = true;
-  request.finished_count++;
-
-  if (request.finished_count == request.results.size() || request.results[pos].is_error()) {
-    // must use send_closure_later if some messages may be being deleted now
-    // but this function is called only through send_closure_later, so there should be no being deleted messages
-    // we must use synchronous calls to keep the correct message order during copying of multiple messages
-    // but "request" iterator can be invalidated by do_send_message_group, so it must not be used below
-    auto message_ids = request.message_ids;
-    for (auto request_message_id : message_ids) {
-      LOG(INFO) << "Send on_media_message_ready_to_send for " << request_message_id << " in " << dialog_id;
-      auto promise = PromiseCreator::lambda([this, media_album_id](Result<Message *> result) {
-        if (G()->close_flag() || result.is_error()) {
-          return;
-        }
-
-        auto m = result.move_as_ok();
-        CHECK(m != nullptr);
-        CHECK(m->media_album_id == media_album_id);
-        do_send_message_group(media_album_id);
-        // send_closure_later(actor_id, &MessagesManager::do_send_message_group, media_album_id);
-      });
-      // send_closure_later(actor_id(this), &MessagesManager::on_media_message_ready_to_send, dialog_id,
-      //                   request_message_id, std::move(promise));
-      on_media_message_ready_to_send(dialog_id, request_message_id, std::move(promise));
-    }
-  }
-}
-
-void MessagesManager::do_send_message_group(int64 media_album_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(media_album_id < 0);
-  auto it = pending_message_group_sends_.find(media_album_id);
-  if (it == pending_message_group_sends_.end()) {
-    // the group may be already sent or failed to be sent
-    return;
-  }
-
-  auto &request = it->second;
-
-  auto dialog_id = request.dialog_id;
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  LOG(INFO) << "Send message album " << request.message_ids;
-
-  auto default_status = can_send_message(dialog_id);
-  bool success = default_status.is_ok();
-  vector<FileUploadId> file_upload_ids;
-  vector<FileId> cover_file_ids;
-  vector<int64> random_ids;
-  vector<tl_object_ptr<telegram_api::inputSingleMedia>> input_single_media;
-  tl_object_ptr<telegram_api::InputPeer> as_input_peer;
-  const MessageInputReplyTo *input_reply_to = nullptr;
-  MessageId top_thread_message_id;
-  int32 flags = 0;
-  int32 schedule_date = 0;
-  MessageEffectId effect_id;
-  bool is_copy = false;
-  int64 paid_message_star_count = 0;
-  for (size_t i = 0; i < request.message_ids.size(); i++) {
-    auto *m = get_message(d, request.message_ids[i]);
-    if (m == nullptr) {
-      // skip deleted messages
-      random_ids.push_back(0);
-      continue;
-    }
-
-    input_reply_to = get_message_input_reply_to(m);
-    top_thread_message_id = m->initial_top_thread_message_id;
-    flags = get_message_flags(m);
-    schedule_date = get_message_schedule_date(m);
-    effect_id = m->effect_id;
-    is_copy = m->is_copy;
-    paid_message_star_count += m->paid_message_star_count;
-    as_input_peer = get_send_message_as_input_peer(m);
-
-    file_upload_ids.push_back(get_message_send_file_upload_id(dialog_id, m, -1));
-    cover_file_ids.push_back(get_message_content_cover_any_file_id(m->content.get()));
-
-    LOG(INFO) << "Have " << file_upload_ids.back() << " in " << m->message_id << " with result " << request.results[i]
-              << " and is_finished = " << static_cast<bool>(request.is_finished[i]);
-
-    random_ids.push_back(begin_send_message(dialog_id, m));
-
-    if (request.results[i].is_error() || !request.is_finished[i]) {
-      success = false;
-      continue;
-    }
-
-    const FormattedText *caption = get_message_content_caption(m->content.get());
-    auto input_media = get_message_content_input_media(m->content.get(), td_, m->ttl, m->send_emoji, true);
-    if (input_media == nullptr) {
-      // TODO return CHECK
-      auto file_upload_id = get_message_send_file_upload_id(dialog_id, m, -1);
-      auto file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-      const auto *full_remote_location = file_view.get_full_remote_location();
-      bool has_remote = full_remote_location != nullptr;
-      bool is_web = has_remote ? full_remote_location->is_web() : false;
-      LOG(FATAL) << request.dialog_id << " " << request.finished_count << " " << i << " " << request.message_ids << " "
-                 << request.is_finished << " " << request.results << " " << m->ttl << " " << has_remote << " "
-                 << file_view.has_alive_remote_location() << " " << file_view.has_active_upload_remote_location() << " "
-                 << file_view.has_active_download_remote_location() << " " << file_view.is_encrypted() << " " << is_web
-                 << " " << file_view.has_url() << " " << to_string(get_message_message_content_object(dialog_id, m));
-    }
-    auto entities = get_input_message_entities(td_->user_manager_.get(), caption, "do_send_message_group");
-    int32 input_single_media_flags = 0;
-    if (!entities.empty()) {
-      input_single_media_flags |= telegram_api::inputSingleMedia::ENTITIES_MASK;
-    }
-
-    input_single_media.push_back(telegram_api::make_object<telegram_api::inputSingleMedia>(
-        input_single_media_flags, std::move(input_media), random_ids.back(), caption == nullptr ? "" : caption->text,
-        std::move(entities)));
-  }
-
-  if (!success) {
-    if (default_status.is_ok()) {
-      default_status = Status::Error(400, "Group send failed");
-    }
-    for (size_t i = 0; i < random_ids.size(); i++) {
-      if (random_ids[i] != 0) {
-        on_send_message_fail(random_ids[i],
-                             request.results[i].is_error() ? std::move(request.results[i]) : default_status.clone());
-      }
-    }
-    pending_message_group_sends_.erase(it);
-    return;
-  }
-  LOG_CHECK(request.finished_count == request.message_ids.size())
-      << request.finished_count << " " << request.message_ids.size();
-  pending_message_group_sends_.erase(it);
-
-  LOG(INFO) << "Begin to send media group " << media_album_id << " to " << dialog_id;
-
-  if (input_single_media.empty()) {
-    LOG(INFO) << "Media group " << media_album_id << " from " << dialog_id << " is empty";
-  }
-  CHECK(input_reply_to != nullptr);
-  td_->create_handler<SendMultiMediaQuery>()->send(flags, dialog_id, std::move(as_input_peer), *input_reply_to,
-                                                   top_thread_message_id, schedule_date, effect_id,
-                                                   std::move(file_upload_ids), std::move(cover_file_ids),
-                                                   std::move(input_single_media), is_copy, paid_message_star_count);
-}
-
-void MessagesManager::do_send_paid_media_group(DialogId dialog_id, MessageId message_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto it = pending_paid_media_group_sends_.find({dialog_id, message_id});
-  if (it == pending_paid_media_group_sends_.end()) {
-    // the paid media may be already sent or failed to be sent
-    return;
-  }
-
-  auto &request = it->second;
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  auto *m = get_message(d, message_id);
-  CHECK(m != nullptr);
-  CHECK(m->content->get_type() == MessageContentType::PaidMedia);
-
-  auto random_id = begin_send_message(dialog_id, m);
-
-  auto status = can_send_message(dialog_id);
-  bool success = status.is_ok();
-  for (auto &result : request.results) {
-    if (success && result.is_error()) {
-      status = result.clone();
-      success = false;
-    }
-  }
-  for (bool is_finished : request.is_finished) {
-    if (!is_finished) {
-      success = false;
-    }
-  }
-  if (!success) {
-    if (status.is_ok()) {
-      status = Status::Error(400, "Group send failed");
-    }
-    on_send_message_fail(random_id, std::move(status));
-    CHECK(pending_paid_media_group_sends_.count({dialog_id, message_id}) == 0);
-    return;
-  }
-
-  auto input_media = get_message_content_input_media(m->content.get(), td_, m->ttl, m->send_emoji, true);
-  CHECK(input_media != nullptr);
-  pending_paid_media_group_sends_.erase(it);
-
-  LOG(INFO) << "Begin to send paid media group " << message_id << " to " << dialog_id;
-
-  const FormattedText *caption = get_message_content_caption(m->content.get());
-  td_->create_handler<SendMediaQuery>()->send(
-      m->file_upload_ids, m->thumbnail_file_upload_ids, get_message_content_cover_any_file_ids(m->content.get()),
-      get_message_flags(m), dialog_id, get_send_message_as_input_peer(m), *get_message_input_reply_to(m),
-      m->initial_top_thread_message_id, get_message_schedule_date(m), m->effect_id, m->paid_message_star_count,
-      get_input_reply_markup(td_->user_manager_.get(), m->reply_markup),
-      get_input_message_entities(td_->user_manager_.get(), caption, "do_send_paid_media_group"),
-      caption == nullptr ? "" : caption->text, std::move(input_media), m->content->get_type(), m->is_copy, random_id,
-      &m->send_query_ref);
-}
-
-void MessagesManager::on_text_message_ready_to_send(DialogId dialog_id, MessageId message_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Ready to send " << message_id << " to " << dialog_id;
-
-  auto m = get_message({dialog_id, message_id});
-  if (m == nullptr) {
-    return;
-  }
-
-  CHECK(message_id.is_yet_unsent());
-
-  auto content = m->content.get();
-  CHECK(content != nullptr);
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    CHECK(!message_id.is_scheduled());
-    auto layer = td_->user_manager_->get_secret_chat_layer(dialog_id.get_secret_chat_id());
-    send_secret_message(dialog_id, m,
-                        get_message_content_secret_input_media(content, td_, nullptr, BufferSlice(), layer));
-  } else {
-    const FormattedText *message_text = get_message_content_text(content);
-    CHECK(message_text != nullptr);
-    int64 random_id = begin_send_message(dialog_id, m);
-    auto input_media = get_message_content_input_media_web_page(td_, content);
-    if (input_media == nullptr) {
-      td_->create_handler<SendMessageQuery>()->send(
-          get_message_flags(m), dialog_id, get_send_message_as_input_peer(m), *get_message_input_reply_to(m),
-          m->initial_top_thread_message_id, get_message_schedule_date(m), m->effect_id, m->paid_message_star_count,
-          get_input_reply_markup(td_->user_manager_.get(), m->reply_markup),
-          get_input_message_entities(td_->user_manager_.get(), message_text, "on_text_message_ready_to_send"),
-          message_text->text, m->is_copy, random_id, &m->send_query_ref);
-    } else {
-      td_->create_handler<SendMediaQuery>()->send(
-          {}, {}, {}, get_message_flags(m), dialog_id, get_send_message_as_input_peer(m),
-          *get_message_input_reply_to(m), m->initial_top_thread_message_id, get_message_schedule_date(m), m->effect_id,
-          m->paid_message_star_count, get_input_reply_markup(td_->user_manager_.get(), m->reply_markup),
-          get_input_message_entities(td_->user_manager_.get(), message_text, "on_text_message_ready_to_send"),
-          message_text->text, std::move(input_media), MessageContentType::Text, m->is_copy, random_id,
-          &m->send_query_ref);
-    }
-  }
-}
-
-void MessagesManager::on_media_message_ready_to_send(DialogId dialog_id, MessageId message_id,
-                                                     Promise<Message *> &&promise) {
-  LOG(INFO) << "Ready to send " << message_id << " to " << dialog_id;
-  CHECK(promise);
-  if (!G()->keep_media_order() || message_id.is_scheduled()) {
-    auto m = get_message({dialog_id, message_id});
-    if (m != nullptr) {
-      promise.set_value(std::move(m));
-    }
-    return;
-  }
-
-  auto queue_id = ChainId(dialog_id, MessageContentType::Photo).get();
-  CHECK(queue_id & 1);
-  auto &queue = yet_unsent_media_queues_[queue_id];
-  queue.dialog_id_ = dialog_id;
-  auto it = queue.queue_.find(message_id);
-  if (it == queue.queue_.end()) {
-    if (queue.queue_.empty()) {
-      yet_unsent_media_queues_.erase(queue_id);
-    }
-
-    LOG(INFO) << "Can't find " << message_id << " in the queue of " << dialog_id;
-    auto m = get_message({dialog_id, message_id});
-    if (m != nullptr) {
-      promise.set_value(std::move(m));
-    }
-    return;
-  }
-  if (it->second) {
-    return promise.set_error(Status::Error(500, "Duplicate promise"));
-  }
-  it->second = std::move(promise);
-
-  on_yet_unsent_media_queue_updated(dialog_id);
-}
-
-void MessagesManager::on_yet_unsent_media_queue_updated(DialogId dialog_id) {
-  auto queue_id = ChainId(dialog_id, MessageContentType::Photo).get();
-  CHECK(queue_id & 1);
-  while (true) {
-    auto it = yet_unsent_media_queues_.find(queue_id);
-    if (it == yet_unsent_media_queues_.end()) {
-      return;
-    }
-    auto &queue = it->second.queue_;
-    if (queue.empty()) {
-      yet_unsent_media_queues_.erase(it);
-      return;
-    }
-    auto first_it = queue.begin();
-    if (!first_it->second) {
-      return;
-    }
-
-    auto m = get_message({dialog_id, first_it->first});
-    auto promise = std::move(first_it->second);
-    queue.erase(first_it);
-    LOG(INFO) << "Queue for " << dialog_id << " now has size " << queue.size();
-
-    // don't use it/queue/first_it after promise is called
-    if (m != nullptr) {
-      LOG(INFO) << "Can send " << MessageFullId{dialog_id, m->message_id};
-      promise.set_value(std::move(m));
-    } else {
-      promise.set_error(Status::Error(400, "Message not found"));
-    }
-  }
-}
-
-Result<MessageId> MessagesManager::send_bot_start_message(UserId bot_user_id, DialogId dialog_id,
-                                                          const string &parameter) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  TRY_RESULT(bot_data, td_->user_manager_->get_bot_data(bot_user_id));
-  TRY_RESULT(d, check_dialog_access(dialog_id, false, AccessRights::Write, "send_bot_start_message"));
-
-  bool is_chat_with_bot = false;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (dialog_id.get_user_id() != bot_user_id) {
-        return Status::Error(400, "Can't send start message to a private chat other than chat with the bot");
-      }
-      is_chat_with_bot = true;
-      break;
-    case DialogType::Chat: {
-      if (!bot_data.can_join_groups) {
-        return Status::Error(400, "Bot can't join groups");
-      }
-
-      auto chat_id = dialog_id.get_chat_id();
-      auto status = td_->chat_manager_->get_chat_permissions(chat_id);
-      if (!status.can_invite_users()) {
-        return Status::Error(400, "Need administrator rights to invite a bot to the group chat");
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      switch (td_->chat_manager_->get_channel_type(channel_id)) {
-        case ChannelType::Megagroup:
-          if (!bot_data.can_join_groups) {
-            return Status::Error(400, "The bot can't join groups");
-          }
-          break;
-        case ChannelType::Broadcast:
-          return Status::Error(400, "Bots can't be invited to channel chats. Add them as administrators instead");
-        case ChannelType::Unknown:
-        default:
-          UNREACHABLE();
-      }
-      auto status = td_->chat_manager_->get_channel_permissions(channel_id);
-      if (!status.can_invite_users()) {
-        return Status::Error(400, "Need administrator rights to invite a bot to the supergroup chat");
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  string text = "/start";
-  if (!is_chat_with_bot) {
-    text += '@';
-    text += bot_data.username;
-  }
-
-  vector<MessageEntity> text_entities;
-  text_entities.emplace_back(MessageEntity::Type::BotCommand, 0, narrow_cast<int32>(text.size()));
-  bool need_update_dialog_pos = false;
-  Message *m = get_message_to_send(
-      d, MessageId(), MessageInputReplyTo(), MessageSendOptions(),
-      create_text_message_content(text, std::move(text_entities), WebPageId(), false, false, false, string()), false,
-      &need_update_dialog_pos);
-  m->is_bot_start_message = true;
-
-  send_update_new_message(d, m);
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, "send_bot_start_message");
-  }
-
-  if (parameter.empty() && is_chat_with_bot) {
-    save_send_message_log_event(dialog_id, m);
-    do_send_message(dialog_id, m);
-  } else {
-    save_send_bot_start_message_log_event(bot_user_id, dialog_id, parameter, m);
-    send_closure_later(actor_id(this), &MessagesManager::do_send_bot_start_message, bot_user_id, dialog_id,
-                       m->message_id, parameter);
-  }
-  return m->message_id;
-}
-
-class MessagesManager::SendBotStartMessageLogEvent {
- public:
-  UserId bot_user_id;
-  DialogId dialog_id;
-  string parameter;
-  const Message *m_in = nullptr;
-  unique_ptr<Message> message_out;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(bot_user_id, storer);
-    td::store(dialog_id, storer);
-    td::store(parameter, storer);
-    td::store(*m_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(bot_user_id, parser);
-    td::parse(dialog_id, parser);
-    td::parse(parameter, parser);
-    td::parse(message_out, parser);
-  }
-};
-
-void MessagesManager::save_send_bot_start_message_log_event(UserId bot_user_id, DialogId dialog_id,
-                                                            const string &parameter, const Message *m) {
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  CHECK(m != nullptr);
-  LOG(INFO) << "Save " << MessageFullId(dialog_id, m->message_id) << " to binlog";
-  SendBotStartMessageLogEvent log_event;
-  log_event.bot_user_id = bot_user_id;
-  log_event.dialog_id = dialog_id;
-  log_event.parameter = parameter;
-  log_event.m_in = m;
-  CHECK(m->send_message_log_event_id == 0);
-  m->send_message_log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SendBotStartMessage,
-                                            get_log_event_storer(log_event));
-}
-
-void MessagesManager::do_send_bot_start_message(UserId bot_user_id, DialogId dialog_id, MessageId message_id,
-                                                const string &parameter) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Do send bot start " << MessageFullId(dialog_id, message_id) << " to bot " << bot_user_id;
-
-  auto m = get_message({dialog_id, message_id});
-  if (m == nullptr) {
-    return;
-  }
-
-  int64 random_id = begin_send_message(dialog_id, m);
-  telegram_api::object_ptr<telegram_api::InputPeer> input_peer =
-      dialog_id.get_type() == DialogType::User ? make_tl_object<telegram_api::inputPeerEmpty>()
-                                               : td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-  if (input_peer == nullptr) {
-    return on_send_message_fail(random_id, Status::Error(400, "Chat is not accessible"));
-  }
-  auto r_bot_input_user = td_->user_manager_->get_input_user(bot_user_id);
-  if (r_bot_input_user.is_error()) {
-    return on_send_message_fail(random_id, r_bot_input_user.move_as_error());
-  }
-
-  m->send_query_ref = td_->create_handler<StartBotQuery>()->send(r_bot_input_user.move_as_ok(), dialog_id,
-                                                                 std::move(input_peer), parameter, random_id);
-}
-
-Result<td_api::object_ptr<td_api::message>> MessagesManager::send_inline_query_result_message(
-    DialogId dialog_id, const MessageId top_thread_message_id,
-    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, tl_object_ptr<td_api::messageSendOptions> &&options,
-    int64 query_id, const string &result_id, bool hide_via_bot) {
-  Dialog *d = get_dialog_force(dialog_id, "send_inline_query_result_message");
-  if (d == nullptr) {
-    return Status::Error(400, "Chat not found");
-  }
-
-  TRY_STATUS(can_send_message(dialog_id));
-  TRY_RESULT(message_send_options, process_message_send_options(dialog_id, std::move(options), false, false, 1));
-  bool to_secret = false;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-      // ok
-      break;
-    case DialogType::Channel: {
-      auto channel_status = td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id());
-      if (!channel_status.can_use_inline_bots()) {
-        return Status::Error(400, "Can't use inline bots in the chat");
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      to_secret = true;
-      // ok
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  const InlineMessageContent *content = td_->inline_queries_manager_->get_inline_message_content(query_id, result_id);
-  if (content == nullptr) {
-    return Status::Error(400, "Inline query result not found");
-  }
-
-  auto input_reply_to = create_message_input_reply_to(d, top_thread_message_id, std::move(reply_to), false);
-  TRY_STATUS(can_use_message_send_options(message_send_options, content->message_content, MessageSelfDestructType()));
-  TRY_STATUS(can_send_message_content(dialog_id, content->message_content.get(), false, true, td_));
-  TRY_STATUS(can_use_top_thread_message_id(d, top_thread_message_id, input_reply_to));
-
-  auto message_content = dup_message_content(td_, dialog_id, content->message_content.get(),
-                                             MessageContentDupType::SendViaBot, MessageCopyOptions());
-  bool need_update_dialog_pos = false;
-  unique_ptr<Message> message;
-  Message *m;
-  if (message_send_options.only_preview) {
-    message = create_message_to_send(d, top_thread_message_id, std::move(input_reply_to), message_send_options,
-                                     std::move(message_content), content->invert_media, false, nullptr, DialogId(),
-                                     true, DialogId());
-    m = message.get();
-  } else {
-    m = get_message_to_send(d, top_thread_message_id, std::move(input_reply_to), message_send_options,
-                            std::move(message_content), content->invert_media, &need_update_dialog_pos, false, nullptr,
-                            DialogId(), true);
-  }
-
-  m->hide_via_bot = hide_via_bot;
-  if (!hide_via_bot) {
-    m->via_bot_user_id = td_->inline_queries_manager_->get_inline_bot_user_id(query_id);
-  }
-  if (!to_secret) {
-    m->reply_markup = dup_reply_markup(content->message_reply_markup);
-  }
-  m->disable_web_page_preview = content->disable_web_page_preview;
-  m->clear_draft = !hide_via_bot;
-
-  if (message_send_options.only_preview) {
-    return get_message_object(dialog_id, m, "send_inline_query_result_message");
-  }
-
-  clear_dialog_draft_by_sent_message(d, m, !need_update_dialog_pos);
-
-  send_update_new_message(d, m);
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, "send_inline_query_result_message");
-  }
-
-  if (to_secret) {
-    save_send_message_log_event(dialog_id, m);
-    do_send_message(dialog_id, m);
-  } else {
-    save_send_inline_query_result_message_log_event(dialog_id, m, query_id, result_id);
-    send_closure_later(actor_id(this), &MessagesManager::do_send_inline_query_result_message, dialog_id, m->message_id,
-                       query_id, result_id);
-  }
-  return get_message_object(dialog_id, m, "send_inline_query_result_message");
-}
-
-class MessagesManager::SendInlineQueryResultMessageLogEvent {
- public:
-  DialogId dialog_id;
-  int64 query_id;
-  string result_id;
-  const Message *m_in = nullptr;
-  unique_ptr<Message> message_out;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id, storer);
-    td::store(query_id, storer);
-    td::store(result_id, storer);
-    td::store(*m_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id, parser);
-    td::parse(query_id, parser);
-    td::parse(result_id, parser);
-    td::parse(message_out, parser);
-  }
-};
-
-void MessagesManager::save_send_inline_query_result_message_log_event(DialogId dialog_id, const Message *m,
-                                                                      int64 query_id, const string &result_id) {
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  CHECK(m != nullptr);
-  LOG(INFO) << "Save " << MessageFullId(dialog_id, m->message_id) << " to binlog";
-  SendInlineQueryResultMessageLogEvent log_event;
-  log_event.dialog_id = dialog_id;
-  log_event.query_id = query_id;
-  log_event.result_id = result_id;
-  log_event.m_in = m;
-  CHECK(m->send_message_log_event_id == 0);
-  m->send_message_log_event_id = binlog_add(
-      G()->td_db()->get_binlog(), LogEvent::HandlerType::SendInlineQueryResultMessage, get_log_event_storer(log_event));
-}
-
-void MessagesManager::do_send_inline_query_result_message(DialogId dialog_id, MessageId message_id, int64 query_id,
-                                                          const string &result_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Do send inline query result " << MessageFullId(dialog_id, message_id);
-
-  auto m = get_message({dialog_id, message_id});
-  if (m == nullptr) {
-    return;
-  }
-
-  int64 random_id = begin_send_message(dialog_id, m);
-  auto flags = get_message_flags(m);
-  if (!m->via_bot_user_id.is_valid() || m->hide_via_bot) {
-    flags |= telegram_api::messages_sendInlineBotResult::HIDE_VIA_MASK;
-  }
-  m->send_query_ref = td_->create_handler<SendInlineBotResultQuery>()->send(
-      flags, dialog_id, get_send_message_as_input_peer(m), *get_message_input_reply_to(m),
-      m->initial_top_thread_message_id, get_message_schedule_date(m), m->paid_message_star_count, random_id, query_id,
-      result_id);
-}
-
-bool MessagesManager::can_edit_message(DialogId dialog_id, const Message *m, bool is_editing,
-                                       bool only_reply_markup) const {
-  if (m == nullptr) {
-    return false;
-  }
-  if (m->message_id.is_yet_unsent()) {
-    return false;
-  }
-  if (m->message_id.is_local()) {
-    return false;
-  }
-  if (m->forward_info != nullptr || m->had_forward_info) {
-    return false;
-  }
-
-  if (m->had_reply_markup) {
-    return false;
-  }
-  if (m->reply_markup != nullptr && m->reply_markup->type != ReplyMarkup::Type::InlineKeyboard) {
-    return false;
-  }
-
-  auto my_id = td_->user_manager_->get_my_id();
-  bool is_inline_message = m->via_bot_user_id.is_valid();
-  if (is_inline_message && (m->via_bot_user_id != my_id || m->message_id.is_scheduled())) {
-    return false;
-  }
-
-  bool is_bot = td_->auth_manager_->is_bot();
-  auto content_type = m->content->get_type();
-  DialogId my_dialog_id(my_id);
-  bool has_edit_time_limit = !(is_bot && m->is_outgoing) && dialog_id != my_dialog_id &&
-                             content_type != MessageContentType::Poll &&
-                             content_type != MessageContentType::LiveLocation && !m->message_id.is_scheduled();
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (!m->is_outgoing && dialog_id != my_dialog_id && !is_inline_message) {
-        return false;
-      }
-      break;
-    case DialogType::Chat:
-      if (!m->is_outgoing && !is_inline_message) {
-        return false;
-      }
-      break;
-    case DialogType::Channel: {
-      if (is_inline_message) {
-        // outgoing via_bot messages can always be edited
-        break;
-      }
-
-      auto channel_id = dialog_id.get_channel_id();
-      auto channel_status = td_->chat_manager_->get_channel_permissions(channel_id);
-      if (m->is_channel_post) {
-        if (m->message_id.is_scheduled()) {
-          if (!channel_status.can_post_messages()) {
-            return false;
-          }
-        } else {
-          if (!channel_status.can_edit_messages() && !(channel_status.can_post_messages() && m->is_outgoing)) {
-            return false;
-          }
-          if (channel_status.can_edit_messages()) {
-            has_edit_time_limit = false;
-          }
-        }
-        if (is_bot && only_reply_markup) {
-          has_edit_time_limit = false;
-        }
-      } else {
-        if (!m->is_outgoing) {
-          return false;
-        }
-        if (channel_status.can_pin_messages()) {
-          has_edit_time_limit = false;
-        }
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      return false;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-
-  if (has_edit_time_limit) {
-    const int32 DEFAULT_EDIT_TIME_LIMIT = 2 * 86400;
-    int64 edit_time_limit = td_->option_manager_->get_option_integer("edit_time_limit", DEFAULT_EDIT_TIME_LIMIT);
-    if (G()->unix_time() - m->date - (is_editing ? 300 : 0) >= edit_time_limit) {
-      return false;
-    }
-  }
-
-  if (is_editable_message_content(content_type)) {
-    return true;
-  }
-  if (is_bot && only_reply_markup && !is_service_message_content(content_type) &&
-      !is_expired_message_content(content_type)) {
-    return true;
-  }
-  switch (content_type) {
-    case MessageContentType::LiveLocation:
-      // live location can be edited only during the period
-      return G()->unix_time() - m->date < get_message_content_live_location_period(m->content.get());
-    case MessageContentType::Poll:
-      // non-closed non-scheduled polls can be closed
-      return !m->message_id.is_scheduled() && !get_message_content_poll_is_closed(td_, m->content.get());
-    default:
-      return false;
-  }
-}
-
-bool MessagesManager::can_edit_message_media(DialogId dialog_id, const Message *m, bool is_editing) const {
-  if (!can_edit_message(dialog_id, m, is_editing)) {
-    return false;
-  }
-  if (m->video_processing_pending) {
-    return false;
-  }
-  switch (m->content->get_type()) {
-    case MessageContentType::Text:
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::Photo:
-    case MessageContentType::Video:
-      break;
-    default:
-      return false;
-  }
-  if (!m->ttl.is_empty()) {
-    return false;
-  }
-  return true;
-}
-
-bool MessagesManager::can_edit_message_scheduling_state(const Message *m) const {
-  if (!m->message_id.is_valid_scheduled() || !m->message_id.is_scheduled_server()) {
-    return false;
-  }
-  return true;
-}
-
-Status MessagesManager::can_pin_message(DialogId dialog_id, const Message *m) const {
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-  TRY_STATUS(td_->dialog_manager_->can_pin_messages(dialog_id));
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Scheduled message can't be pinned");
-  }
-  if (!m->message_id.is_server()) {
-    return Status::Error(400, "Message can't be pinned");
-  }
-  if (is_service_message_content(m->content->get_type())) {
-    return Status::Error(400, "Service messages can't be pinned");
-  }
-  return Status::OK();
-}
-
-bool MessagesManager::can_resend_message(const Message *m) const {
-  if (m->send_error_code != 429 && m->send_error_message != "Message is too old to be re-sent automatically" &&
-      m->send_error_message != "SCHEDULE_TOO_MUCH" && m->send_error_message != "SEND_AS_PEER_INVALID" &&
-      m->send_error_message != "QUOTE_TEXT_INVALID" && m->send_error_message != "REPLY_MESSAGE_ID_INVALID" &&
-      !begins_with(m->send_error_message, "ALLOW_PAYMENT_REQUIRED_")) {
-    return false;
-  }
-  if (m->is_bot_start_message) {
-    return false;
-  }
-  if (m->forward_info != nullptr || m->real_forward_from_dialog_id.is_valid()) {
-    // TODO implement resending of forwarded messages
-    return false;
-  }
-  auto content_type = m->content->get_type();
-  if (m->via_bot_user_id.is_valid() || m->hide_via_bot) {
-    // via bot message
-    if (!can_message_content_have_input_media(td_, m->content.get(), false)) {
-      return false;
-    }
-
-    // resend via_bot message as an ordinary message if error code is 429
-    // TODO support other error codes
-  }
-
-  if (content_type == MessageContentType::ChatSetTtl || content_type == MessageContentType::ScreenshotTaken) {
-    // TODO implement resending of ChatSetTtl and ScreenshotTaken messages
-    return false;
-  }
-  return true;
-}
-
-bool MessagesManager::is_deleted_secret_chat(DialogId dialog_id) const {
-  return is_deleted_secret_chat(get_dialog(dialog_id));
-}
-
-bool MessagesManager::is_deleted_secret_chat(const Dialog *d) const {
-  if (d == nullptr) {
-    return true;
-  }
-  if (d->dialog_id.get_type() != DialogType::SecretChat) {
-    return false;
-  }
-
-  if (d->order != DEFAULT_ORDER || !d->messages.empty()) {
-    return false;
-  }
-
-  auto state = td_->user_manager_->get_secret_chat_state(d->dialog_id.get_secret_chat_id());
-  if (state != SecretChatState::Closed) {
-    return false;
-  }
-
-  return true;
-}
-
-int32 MessagesManager::get_message_schedule_date(const Message *m) {
-  CHECK(m != nullptr);
-  if (!m->message_id.is_scheduled()) {
-    return 0;
-  }
-  if (m->edited_schedule_date != 0) {
-    return m->edited_schedule_date;
-  }
-  return m->date;
-}
-
-int32 MessagesManager::get_message_original_date(const Message *m) {
-  CHECK(m != nullptr);
-  if (m->forward_info != nullptr) {
-    return m->forward_info->get_origin_date();
-  }
-  return m->date;
-}
-
-DialogId MessagesManager::get_message_original_sender(const Message *m) {
-  CHECK(m != nullptr);
-  if (m->forward_info != nullptr) {
-    if (m->forward_info->is_imported()) {
-      return DialogId();
-    }
-    return m->forward_info->get_origin().get_sender();
-  }
-  return get_message_sender(m);
-}
-
-DialogId MessagesManager::get_message_sender(const Message *m) {
-  CHECK(m != nullptr);
-  return m->sender_dialog_id.is_valid() ? m->sender_dialog_id : DialogId(m->sender_user_id);
-}
-
-void MessagesManager::edit_message_text(MessageFullId message_full_id,
-                                        tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                        tl_object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                        Promise<Unit> &&promise) {
-  if (input_message_content == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't edit message without new content"));
-  }
-  int32 new_message_content_type = input_message_content->get_id();
-  if (new_message_content_type != td_api::inputMessageText::ID) {
-    return promise.set_error(Status::Error(400, "Input message content type must be InputMessageText"));
-  }
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Edit, "edit_message_text"));
-
-  const Message *m = get_message_force(d, message_full_id.get_message_id(), "edit_message_text");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!can_edit_message(dialog_id, m, true)) {
-    return promise.set_error(Status::Error(400, "Message can't be edited"));
-  }
-
-  MessageContentType old_message_content_type = m->content->get_type();
-  if (old_message_content_type != MessageContentType::Text && old_message_content_type != MessageContentType::Game) {
-    return promise.set_error(Status::Error(400, "There is no text in the message to edit"));
-  }
-
-  TRY_RESULT_PROMISE(
-      promise, input_message_text,
-      process_input_message_text(td_, dialog_id, std::move(input_message_content), td_->auth_manager_->is_bot()));
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false,
-                                      has_message_sender_user_id(dialog_id, m)));
-  auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), new_reply_markup);
-  int32 flags = 0;
-  if (input_message_text.disable_web_page_preview) {
-    flags |= SEND_MESSAGE_FLAG_DISABLE_WEB_PAGE_PREVIEW;
-  }
-
-  td_->create_handler<EditMessageQuery>(std::move(promise))
-      ->send(
-          flags, dialog_id, m->message_id, input_message_text.text.text,
-          get_input_message_entities(td_->user_manager_.get(), input_message_text.text.entities, "edit_message_text"),
-          input_message_text.get_input_media_web_page(), input_message_text.show_above_text,
-          std::move(input_reply_markup), get_message_schedule_date(m));
-}
-
-void MessagesManager::edit_message_live_location(MessageFullId message_full_id,
-                                                 tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                                 tl_object_ptr<td_api::location> &&input_location, int32 live_period,
-                                                 int32 heading, int32 proximity_alert_radius, Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Edit, "edit_message_live_location"));
-
-  const Message *m = get_message_force(d, message_full_id.get_message_id(), "edit_message_live_location");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!can_edit_message(dialog_id, m, true)) {
-    return promise.set_error(Status::Error(400, "Message can't be edited"));
-  }
-
-  MessageContentType old_message_content_type = m->content->get_type();
-  if (old_message_content_type != MessageContentType::LiveLocation) {
-    return promise.set_error(Status::Error(400, "There is no live location in the message to edit"));
-  }
-  if (m->message_id.is_scheduled()) {
-    LOG(ERROR) << "Have " << message_full_id << " with live location";
-    return promise.set_error(Status::Error(400, "Can't edit live location in scheduled message"));
-  }
-
-  Location location(input_location);
-  if (location.empty() && input_location != nullptr) {
-    return promise.set_error(Status::Error(400, "Invalid location specified"));
-  }
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false,
-                                      has_message_sender_user_id(dialog_id, m)));
-  auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), new_reply_markup);
-
-  int32 flags = 0;
-  if (live_period != 0) {
-    flags |= telegram_api::inputMediaGeoLive::PERIOD_MASK;
-  }
-  if (heading != 0) {
-    flags |= telegram_api::inputMediaGeoLive::HEADING_MASK;
-  }
-  flags |= telegram_api::inputMediaGeoLive::PROXIMITY_NOTIFICATION_RADIUS_MASK;
-  auto input_media = telegram_api::make_object<telegram_api::inputMediaGeoLive>(
-      flags, location.empty(), location.get_input_geo_point(), heading, live_period, proximity_alert_radius);
-  td_->create_handler<EditMessageQuery>(std::move(promise))
-      ->send(0, dialog_id, m->message_id, string(), vector<tl_object_ptr<telegram_api::MessageEntity>>(),
-             std::move(input_media), false /*ignored*/, std::move(input_reply_markup), get_message_schedule_date(m));
-}
-
-void MessagesManager::cancel_edit_message_media(DialogId dialog_id, Message *m, Slice error_message) {
-  auto *edited_message = get_edited_message(dialog_id, m->message_id);
-  if (edited_message == nullptr) {
-    return;
-  }
-
-  cancel_upload_message_content_files(edited_message->file_upload_ids_, edited_message->thumbnail_file_upload_ids_);
-  auto promise = std::move(edited_message->promise_);
-  delete_edited_message(dialog_id, m->message_id);
-  m->edit_generation = 0;
-  promise.set_error(Status::Error(400, error_message));
-}
-
-void MessagesManager::on_message_media_edited(DialogId dialog_id, MessageId message_id, FileUploadId file_upload_id,
-                                              FileUploadId thumbnail_file_upload_id, FileId cover_file_id,
-                                              bool was_uploaded, bool was_thumbnail_uploaded, string file_reference,
-                                              string cover_file_reference, int32 schedule_date, uint64 generation,
-                                              Result<int32> &&result) {
-  // must not run getDifference
-
-  if (was_thumbnail_uploaded) {
-    CHECK(thumbnail_file_upload_id.is_valid());
-    td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id);
-  }
-
-  CHECK(message_id.is_any_server());
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  auto m = get_message(d, message_id);
-  if (m == nullptr || m->edit_generation != generation) {
-    // message is already deleted or was edited again
-    if (was_uploaded) {
-      cancel_upload_file(file_upload_id, "on_message_media_edited");
-    }
-    return;
-  }
-
-  auto edited_message = get_edited_message(dialog_id, message_id);
-  CHECK(edited_message->content_ != nullptr);
-  if (result.is_ok()) {
-    // message content has already been replaced from updateEdit{Channel,}Message
-    // need only merge files from edited_content with their uploaded counterparts
-    // updateMessageContent was already sent and needs to be sent again,
-    // only if 'i' and 't' sizes from edited_content were added to the photo
-    auto pts = result.ok();
-    LOG(INFO) << "Successfully edited " << message_id << " in " << dialog_id << " with PTS = " << pts
-              << " and last edit PTS = " << m->last_edit_pts;
-    std::swap(m->content, edited_message->content_);
-    bool need_send_update_message_content = edited_message->content_->get_type() == MessageContentType::Photo &&
-                                            m->content->get_type() == MessageContentType::Photo;
-    bool need_merge_files = pts != 0 && pts == m->last_edit_pts;
-    bool is_content_changed = false;
-    bool need_update = update_message_content(dialog_id, m, std::move(edited_message->content_), need_merge_files, true,
-                                              is_content_changed);
-    if (need_send_update_message_content) {
-      if (need_update) {
-        send_update_message_content(d, m, true, "on_message_media_edited");
-      }
-      if (is_content_changed || need_update) {
-        on_message_changed(d, m, need_update, "on_message_media_edited");
-      }
-    }
-  } else {
-    const auto &error = result.error();
-    LOG(INFO) << "Failed to edit " << message_id << " in " << dialog_id << ": " << error;
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(error)) {
-      auto source = FileReferenceManager::get_file_reference_error_source(error);
-      if (source.is_cover_) {
-        if (cover_file_id.is_valid()) {
-          VLOG(file_references) << "Receive " << error << " for cover " << cover_file_id;
-          td_->file_manager_->delete_file_reference(cover_file_id, cover_file_reference);
-          do_send_message(dialog_id, m, -1, {-1});
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error, but have no cover_file_id";
-        }
-      } else {
-        if (file_upload_id.is_valid()) {
-          VLOG(file_references) << "Receive " << error << " for " << file_upload_id;
-          td_->file_manager_->delete_file_reference(file_upload_id.get_file_id(), file_reference);
-          do_send_message(dialog_id, m, -1, {-1});
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error, but have no file_id";
-        }
-      }
-    }
-    if (was_uploaded) {
-      CHECK(file_upload_id.is_valid());
-      auto bad_parts = FileManager::get_missing_file_parts(error);
-      if (!bad_parts.empty()) {
-        do_send_message(dialog_id, m, -1, std::move(bad_parts));
-        return;
-      }
-
-      td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id, error);
-    }
-
-    if (error.code() != 403 && !(error.code() == 500 && G()->close_flag())) {
-      LOG(WARNING) << "Failed to edit " << MessageFullId{dialog_id, m->message_id} << " with the error " << error;
-    }
-    cancel_upload_message_content_files(edited_message->file_upload_ids_, edited_message->thumbnail_file_upload_ids_);
-
-    if (dialog_id.get_type() != DialogType::SecretChat) {
-      get_message_from_server({dialog_id, m->message_id}, Auto(), "on_message_media_edited");
-    }
-  }
-  if (was_uploaded) {
-    cancel_upload_file(file_upload_id, "on_message_media_edited");
-  }
-
-  if (m->edited_schedule_date == schedule_date) {
-    m->edited_schedule_date = 0;
-  }
-  auto promise = std::move(edited_message->promise_);
-  delete_edited_message(dialog_id, message_id);
-  m->edit_generation = 0;
-  if (result.is_ok()) {
-    promise.set_value(Unit());
-  } else {
-    promise.set_error(result.move_as_error());
-  }
-}
-
-void MessagesManager::edit_message_media(MessageFullId message_full_id,
-                                         tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                         tl_object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                         Promise<Unit> &&promise) {
-  if (input_message_content == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't edit message without new content"));
-  }
-  int32 new_message_content_type = input_message_content->get_id();
-  if (new_message_content_type != td_api::inputMessageAnimation::ID &&
-      new_message_content_type != td_api::inputMessageAudio::ID &&
-      new_message_content_type != td_api::inputMessageDocument::ID &&
-      new_message_content_type != td_api::inputMessagePhoto::ID &&
-      new_message_content_type != td_api::inputMessageVideo::ID) {
-    return promise.set_error(Status::Error(400, "Unsupported input message content type"));
-  }
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Edit, "edit_message_media"));
-
-  Message *m = get_message_force(d, message_full_id.get_message_id(), "edit_message_media");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!can_edit_message_media(dialog_id, m, true)) {
-    return promise.set_error(Status::Error(400, "Message media can't be edited"));
-  }
-  CHECK(m->message_id.is_any_server());
-
-  TRY_RESULT_PROMISE(promise, content, process_input_message_content(dialog_id, std::move(input_message_content)));
-  if (!content.ttl.is_empty()) {
-    return promise.set_error(Status::Error(400, "Can't enable self-destruction for media"));
-  }
-
-  if (m->media_album_id != 0) {
-    auto old_message_content_type = m->content->get_type();
-    auto new_content_type = content.content->get_type();
-    if (old_message_content_type != new_content_type) {
-      if (!is_allowed_media_group_content(new_content_type)) {
-        return promise.set_error(Status::Error(400, "Message content type can't be used in an album"));
-      }
-      if (is_homogenous_media_group_content(old_message_content_type) ||
-          is_homogenous_media_group_content(new_content_type)) {
-        return promise.set_error(Status::Error(400, "Can't change media type in the album"));
-      }
-    }
-  }
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false,
-                                      has_message_sender_user_id(dialog_id, m)));
-
-  cancel_edit_message_media(dialog_id, m, "Canceled by new editMessageMedia request");
-
-  auto edited_message = make_unique<EditedMessage>();
-  edited_message->content_ =
-      dup_message_content(td_, dialog_id, content.content.get(), MessageContentDupType::Send, MessageCopyOptions());
-  CHECK(edited_message->content_ != nullptr);
-  edited_message->invert_media_ = content.invert_media;
-  edited_message->reply_markup_ = std::move(new_reply_markup);
-  edited_message->promise_ = std::move(promise);
-  add_edited_message(dialog_id, m->message_id, std::move(edited_message));
-  m->edit_generation = ++current_message_edit_generation_;
-
-  do_send_message(dialog_id, m);
-}
-
-void MessagesManager::edit_message_caption(MessageFullId message_full_id,
-                                           tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                           tl_object_ptr<td_api::formattedText> &&input_caption, bool invert_media,
-                                           Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Edit, "edit_message_caption"));
-
-  const Message *m = get_message_force(d, message_full_id.get_message_id(), "edit_message_caption");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!can_edit_message(dialog_id, m, true)) {
-    return promise.set_error(Status::Error(400, "Message can't be edited"));
-  }
-
-  if (!can_have_message_content_caption(m->content->get_type())) {
-    return promise.set_error(Status::Error(400, "There is no caption in the message to edit"));
-  }
-  if (invert_media && !is_allowed_invert_caption_message_content(m->content->get_type())) {
-    invert_media = false;
-  }
-
-  TRY_RESULT_PROMISE(
-      promise, caption,
-      get_formatted_text(td_, dialog_id, std::move(input_caption), td_->auth_manager_->is_bot(), true, false, false));
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false,
-                                      has_message_sender_user_id(dialog_id, m)));
-  auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), new_reply_markup);
-
-  td_->create_handler<EditMessageQuery>(std::move(promise))
-      ->send(1 << 11, dialog_id, m->message_id, caption.text,
-             get_input_message_entities(td_->user_manager_.get(), caption.entities, "edit_message_caption"), nullptr,
-             invert_media, std::move(input_reply_markup), get_message_schedule_date(m));
-}
-
-void MessagesManager::edit_message_reply_markup(MessageFullId message_full_id,
-                                                tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                                Promise<Unit> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Edit, "edit_message_reply_markup"));
-
-  const Message *m = get_message_force(d, message_full_id.get_message_id(), "edit_message_reply_markup");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!can_edit_message(dialog_id, m, true, true)) {
-    return promise.set_error(Status::Error(400, "Message can't be edited"));
-  }
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false,
-                                      has_message_sender_user_id(dialog_id, m)));
-  auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), new_reply_markup);
-  td_->create_handler<EditMessageQuery>(std::move(promise))
-      ->send(0, dialog_id, m->message_id, string(), vector<tl_object_ptr<telegram_api::MessageEntity>>(), nullptr,
-             m->invert_media /*ignored*/, std::move(input_reply_markup), get_message_schedule_date(m));
-}
-
-void MessagesManager::edit_message_scheduling_state(
-    MessageFullId message_full_id, td_api::object_ptr<td_api::MessageSchedulingState> &&scheduling_state,
-    Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, schedule_date, get_message_schedule_date(std::move(scheduling_state)));
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, true, AccessRights::Edit, "edit_message_scheduling_state"));
-
-  Message *m = get_message_force(d, message_full_id.get_message_id(), "edit_message_scheduling_state");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!can_edit_message_scheduling_state(m) || (m->video_processing_pending && schedule_date > 0)) {
-    return promise.set_error(Status::Error(400, "Can't reschedule the message"));
-  }
-
-  if (get_message_schedule_date(m) == schedule_date) {
-    return promise.set_value(Unit());
-  }
-  m->edited_schedule_date = schedule_date;
-
-  if (schedule_date > 0) {
-    td_->create_handler<EditMessageQuery>(std::move(promise))
-        ->send(0, dialog_id, m->message_id, string(), vector<tl_object_ptr<telegram_api::MessageEntity>>(), nullptr,
-               m->invert_media /*ignored*/, nullptr, schedule_date);
-  } else {
-    td_->create_handler<SendScheduledMessageQuery>(std::move(promise))->send(dialog_id, m->message_id);
-  }
-}
-
-void MessagesManager::set_message_fact_check(MessageFullId message_full_id,
-                                             td_api::object_ptr<td_api::formattedText> &&text,
-                                             Promise<Unit> &&promise) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, false, AccessRights::Read, "set_message_fact_check"));
-
-  const Message *m = get_message_force(d, message_full_id.get_message_id(), "set_message_fact_check");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!can_set_message_fact_check(dialog_id, m)) {
-    return promise.set_error(Status::Error(400, "Message fact-check can't be changed for the message"));
-  }
-
-  TRY_RESULT_PROMISE(promise, fact_check_text,
-                     get_formatted_text(td_, dialog_id, std::move(text), false, true, true, false));
-
-  td_->message_query_manager_->set_message_fact_check(message_full_id, fact_check_text, std::move(promise));
-}
-
-bool MessagesManager::is_discussion_message(DialogId dialog_id, const Message *m) const {
-  if (m == nullptr || m->forward_info == nullptr) {
-    return false;
-  }
-  if (m->sender_user_id.is_valid()) {
-    if (!td_->auth_manager_->is_bot() || m->sender_user_id != UserManager::get_service_notifications_user_id()) {
-      return false;
-    }
-  }
-  auto linked_dialog_id = m->forward_info->get_last_dialog_id();
-  if (linked_dialog_id.get_type() != DialogType::Channel) {
-    return false;
-  }
-  if (dialog_id.get_type() != DialogType::Channel || td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return false;
-  }
-  if (linked_dialog_id == dialog_id) {
-    return false;
-  }
-  return true;
-}
-
-bool MessagesManager::has_message_sender_user_id(DialogId dialog_id, const Message *m) const {
-  if (!m->sender_user_id.is_valid()) {
-    return false;
-  }
-  if (td_->auth_manager_->is_bot() && is_discussion_message(dialog_id, m)) {
-    return false;
-  }
-  return true;
-}
-
-int32 MessagesManager::get_message_own_max_media_timestamp(const Message *m) const {
-  auto duration = get_message_content_media_duration(m->content.get(), td_);
-  return duration == 0 ? std::numeric_limits<int32>::max() : duration;
-}
-
-int32 MessagesManager::get_message_max_media_timestamp(const Message *m) {
-  return m->max_own_media_timestamp >= 0 ? m->max_own_media_timestamp : m->max_reply_media_timestamp;
-}
-
-void MessagesManager::update_message_max_reply_media_timestamp(const Dialog *d, Message *m,
-                                                               bool need_send_update_message_content) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto new_max_reply_media_timestamp = -1;
-  auto reply_message_full_id = m->replied_message_info.get_reply_message_full_id(d->dialog_id, false);
-  auto reply_message_id = reply_message_full_id.get_message_id();
-  if (reply_message_id.is_valid() && !reply_message_id.is_yet_unsent()) {
-    const auto *reply_d =
-        reply_message_full_id.get_dialog_id() != d->dialog_id ? get_dialog(reply_message_full_id.get_dialog_id()) : d;
-    if (reply_d == nullptr) {
-      // replied message isn't loaded yet
-      return;
-    }
-    auto replied_m = get_message(reply_d, reply_message_id);
-    if (replied_m != nullptr) {
-      new_max_reply_media_timestamp = get_message_own_max_media_timestamp(replied_m);
-    } else if (!is_deleted_message(reply_d, reply_message_id) &&
-               reply_message_id > reply_d->last_clear_history_message_id &&
-               reply_message_id > reply_d->max_unavailable_message_id) {
-      // replied message isn't deleted and isn't loaded yet
-      return;
-    }
-  } else if (m->reply_to_story_full_id != StoryFullId()) {
-    if (!td_->story_manager_->have_story(m->reply_to_story_full_id)) {
-      if (!td_->story_manager_->is_inaccessible_story(m->reply_to_story_full_id)) {
-        // replied story isn't loaded yet
-        return;
-      }
-    } else {
-      new_max_reply_media_timestamp = td_->story_manager_->get_story_duration(m->reply_to_story_full_id);
-    }
-  }
-
-  if (m->max_reply_media_timestamp == new_max_reply_media_timestamp) {
-    return;
-  }
-
-  LOG(INFO) << "Set max_reply_media_timestamp in " << m->message_id << " in " << d->dialog_id << " to "
-            << new_max_reply_media_timestamp;
-  auto old_max_media_timestamp = get_message_max_media_timestamp(m);
-  m->max_reply_media_timestamp = new_max_reply_media_timestamp;
-  auto new_max_media_timestamp = get_message_max_media_timestamp(m);
-  if (need_send_update_message_content && old_max_media_timestamp != new_max_media_timestamp) {
-    if (old_max_media_timestamp > new_max_media_timestamp) {
-      std::swap(old_max_media_timestamp, new_max_media_timestamp);
-    }
-
-    if (has_media_timestamps(get_message_content_text(m->content.get()), old_max_media_timestamp + 1,
-                             new_max_media_timestamp)) {
-      send_update_message_content_impl(d->dialog_id, m, "update_message_max_reply_media_timestamp");
-    }
-  }
-}
-
-void MessagesManager::update_message_max_own_media_timestamp(const Dialog *d, Message *m) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto new_max_own_media_timestamp = get_message_own_max_media_timestamp(m);
-  if (m->max_own_media_timestamp == new_max_own_media_timestamp) {
-    return;
-  }
-
-  LOG(INFO) << "Set max_own_media_timestamp in " << m->message_id << " in " << d->dialog_id << " to "
-            << new_max_own_media_timestamp;
-  m->max_own_media_timestamp = new_max_own_media_timestamp;
-
-  update_message_max_reply_media_timestamp_in_replied_messages(d->dialog_id, m->message_id);
-}
-
-void MessagesManager::update_message_max_reply_media_timestamp_in_replied_messages(DialogId dialog_id,
-                                                                                   MessageId reply_to_message_id) {
-  if (reply_to_message_id.is_scheduled()) {
-    return;
-  }
-  CHECK(reply_to_message_id.is_valid());
-  if (reply_to_message_id.is_yet_unsent()) {
-    return;
-  }
-
-  MessageFullId message_full_id{dialog_id, reply_to_message_id};
-  auto it = message_to_replied_media_timestamp_messages_.find(message_full_id);
-  if (it == message_to_replied_media_timestamp_messages_.end()) {
-    return;
-  }
-
-  LOG(INFO) << "Update max_reply_media_timestamp for replies of " << message_full_id;
-
-  for (auto replied_message_full_id : it->second) {
-    auto replied_dialog_id = replied_message_full_id.get_dialog_id();
-    Dialog *d = get_dialog(replied_dialog_id);
-    auto m = get_message(d, replied_message_full_id.get_message_id());
-    CHECK(m != nullptr);
-    CHECK(m->replied_message_info.get_reply_message_full_id(replied_dialog_id, false) == message_full_id);
-    update_message_max_reply_media_timestamp(d, m, true);
-  }
-}
-
-void MessagesManager::update_story_max_reply_media_timestamp_in_replied_messages(StoryFullId story_full_id) {
-  auto it = story_to_replied_media_timestamp_messages_.find(story_full_id);
-  if (it == story_to_replied_media_timestamp_messages_.end()) {
-    return;
-  }
-
-  LOG(INFO) << "Update max_reply_media_timestamp for replies of " << story_full_id;
-
-  for (auto replied_message_full_id : it->second) {
-    auto replied_dialog_id = replied_message_full_id.get_dialog_id();
-    Dialog *d = get_dialog(replied_dialog_id);
-    auto m = get_message(d, replied_message_full_id.get_message_id());
-    CHECK(m != nullptr);
-    CHECK(m->reply_to_story_full_id == story_full_id);
-    update_message_max_reply_media_timestamp(d, m, true);
-  }
-}
-
-bool MessagesManager::can_register_message_reply(const Message *m) const {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-  auto reply_message_full_id = m->replied_message_info.get_reply_message_full_id(DialogId(), false);
-  auto reply_message_id = reply_message_full_id.get_message_id();
-  if (reply_message_id.is_valid() && !reply_message_id.is_yet_unsent()) {
-    return true;
-  }
-  if (m->reply_to_story_full_id.is_valid()) {
-    return true;
-  }
-  return false;
-}
-
-void MessagesManager::register_message_reply(DialogId dialog_id, const Message *m) {
-  m->replied_message_info.register_content(td_);
-
-  if (!can_register_message_reply(m)) {
-    return;
-  }
-
-  if (has_media_timestamps(get_message_content_text(m->content.get()), 0, std::numeric_limits<int32>::max())) {
-    if (m->reply_to_story_full_id.is_valid()) {
-      LOG(INFO) << "Register " << m->message_id << " in " << dialog_id << " as reply to " << m->reply_to_story_full_id;
-      bool is_inserted = story_to_replied_media_timestamp_messages_[m->reply_to_story_full_id]
-                             .insert({dialog_id, m->message_id})
-                             .second;
-      CHECK(is_inserted);
-    } else {
-      auto message_full_id = m->replied_message_info.get_reply_message_full_id(dialog_id, false);
-      LOG(INFO) << "Register " << m->message_id << " in " << dialog_id << " as reply to " << message_full_id;
-      bool is_inserted =
-          message_to_replied_media_timestamp_messages_[message_full_id].insert({dialog_id, m->message_id}).second;
-      CHECK(is_inserted);
-    }
-  }
-}
-
-void MessagesManager::reregister_message_reply(DialogId dialog_id, const Message *m) {
-  // reply itself wasn't changed, so there is nothing to reregister
-  if (!can_register_message_reply(m)) {
-    return;
-  }
-
-  bool was_registered = false;
-  if (m->reply_to_story_full_id.is_valid()) {
-    auto it = story_to_replied_media_timestamp_messages_.find(m->reply_to_story_full_id);
-    was_registered =
-        it != story_to_replied_media_timestamp_messages_.end() && it->second.count({dialog_id, m->message_id}) > 0;
-  } else {
-    auto message_full_id = m->replied_message_info.get_reply_message_full_id(dialog_id, false);
-    auto it = message_to_replied_media_timestamp_messages_.find(message_full_id);
-    was_registered =
-        it != message_to_replied_media_timestamp_messages_.end() && it->second.count({dialog_id, m->message_id}) > 0;
-  }
-  bool need_register =
-      has_media_timestamps(get_message_content_text(m->content.get()), 0, std::numeric_limits<int32>::max());
-  if (was_registered == need_register) {
-    return;
-  }
-  if (was_registered) {
-    unregister_message_reply(dialog_id, m);
-  } else {
-    register_message_reply(dialog_id, m);
-  }
-}
-
-void MessagesManager::unregister_message_reply(DialogId dialog_id, const Message *m) {
-  m->replied_message_info.unregister_content(td_);
-
-  if (!can_register_message_reply(m)) {
-    return;
-  }
-
-  if (m->reply_to_story_full_id.is_valid()) {
-    auto it = story_to_replied_media_timestamp_messages_.find(m->reply_to_story_full_id);
-    if (it == story_to_replied_media_timestamp_messages_.end()) {
-      return;
-    }
-
-    auto is_deleted = it->second.erase({dialog_id, m->message_id}) > 0;
-    if (is_deleted) {
-      LOG(INFO) << "Unregister " << m->message_id << " in " << dialog_id << " as reply to "
-                << m->reply_to_story_full_id;
-      if (it->second.empty()) {
-        story_to_replied_media_timestamp_messages_.erase(it);
-      }
-    }
-  } else {
-    auto message_full_id = m->replied_message_info.get_reply_message_full_id(dialog_id, false);
-    auto it = message_to_replied_media_timestamp_messages_.find(message_full_id);
-    if (it == message_to_replied_media_timestamp_messages_.end()) {
-      return;
-    }
-
-    auto is_deleted = it->second.erase({dialog_id, m->message_id}) > 0;
-    if (is_deleted) {
-      LOG(INFO) << "Unregister " << m->message_id << " in " << dialog_id << " as reply to " << message_full_id;
-      if (it->second.empty()) {
-        message_to_replied_media_timestamp_messages_.erase(it);
-      }
-    }
-  }
-}
-
-bool MessagesManager::get_message_disable_web_page_preview(const Message *m) {
-  if (m->content->get_type() != MessageContentType::Text) {
-    return false;
-  }
-  if (has_message_content_web_page(m->content.get())) {
-    return false;
-  }
-  return m->disable_web_page_preview;
-}
-
-int32 MessagesManager::get_message_flags(const Message *m) {
-  int32 flags = 0;
-  if (m->disable_web_page_preview) {
-    flags |= SEND_MESSAGE_FLAG_DISABLE_WEB_PAGE_PREVIEW;
-  }
-  if (m->reply_markup != nullptr) {
-    flags |= SEND_MESSAGE_FLAG_HAS_REPLY_MARKUP;
-  }
-  if (m->disable_notification) {
-    flags |= SEND_MESSAGE_FLAG_DISABLE_NOTIFICATION;
-  }
-  if (m->from_background) {
-    flags |= SEND_MESSAGE_FLAG_FROM_BACKGROUND;
-  }
-  if (m->clear_draft) {
-    flags |= SEND_MESSAGE_FLAG_CLEAR_DRAFT;
-  }
-  if (m->message_id.is_scheduled()) {
-    flags |= SEND_MESSAGE_FLAG_HAS_SCHEDULE_DATE;
-  }
-  if (m->noforwards) {
-    flags |= SEND_MESSAGE_FLAG_NOFORWARDS;
-  }
-  if (m->update_stickersets_order) {
-    flags |= SEND_MESSAGE_FLAG_UPDATE_STICKER_SETS_ORDER;
-  }
-  if (m->invert_media) {
-    flags |= SEND_MESSAGE_FLAG_INVERT_MEDIA;
-  }
-  if (m->effect_id.is_valid()) {
-    flags |= SEND_MESSAGE_FLAG_EFFECT;
-  }
-  if (m->allow_paid) {
-    flags |= SEND_MESSAGE_FLAG_ALLOW_PAID;
-  }
-  if (m->paid_message_star_count) {
-    flags |= SEND_MESSAGE_FLAG_ALLOW_PAID_STARS;
-  }
-  return flags;
-}
-
-tl_object_ptr<telegram_api::InputPeer> MessagesManager::get_send_message_as_input_peer(const Message *m) const {
-  if (!m->has_explicit_sender) {
-    return nullptr;
-  }
-  auto dialog_id = m->initial_sender_dialog_id != DialogId() ? m->initial_sender_dialog_id : get_message_sender(m);
-  return td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-}
-
-bool MessagesManager::can_set_game_score(MessageFullId message_full_id) const {
-  return can_set_game_score(message_full_id.get_dialog_id(), get_message(message_full_id));
-}
-
-bool MessagesManager::can_set_game_score(DialogId dialog_id, const Message *m) const {
-  if (m == nullptr) {
-    return false;
-  }
-  if (m->content->get_type() != MessageContentType::Game) {
-    return false;
-  }
-  if (m->message_id.is_scheduled()) {
-    return false;
-  }
-  if (m->message_id.is_yet_unsent()) {
-    return false;
-  }
-  if (m->message_id.is_local()) {
-    return false;
-  }
-  auto is_inline_message = m->via_bot_user_id.is_valid();
-  if (is_inline_message && m->via_bot_user_id != td_->user_manager_->get_my_id()) {
-    return false;
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    return false;
-  }
-  if (m->reply_markup == nullptr || m->reply_markup->type != ReplyMarkup::Type::InlineKeyboard ||
-      m->reply_markup->inline_keyboard.empty()) {
-    return false;
-  }
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (!m->is_outgoing && dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-        return false;
-      }
-      break;
-    case DialogType::Chat:
-      if (!m->is_outgoing) {
-        return false;
-      }
-      break;
-    case DialogType::Channel: {
-      if (is_inline_message) {
-        // outgoing via_bot messages can always be edited
-        break;
-      }
-      auto channel_id = dialog_id.get_channel_id();
-      auto channel_status = td_->chat_manager_->get_channel_permissions(channel_id);
-      if (m->is_channel_post) {
-        if (!channel_status.can_edit_messages() && !(channel_status.can_post_messages() && m->is_outgoing)) {
-          return false;
-        }
-      } else {
-        if (!m->is_outgoing) {
-          return false;
-        }
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      return false;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-
-  return true;
-}
-
-Result<unique_ptr<ReplyMarkup>> MessagesManager::get_dialog_reply_markup(
-    DialogId dialog_id, tl_object_ptr<td_api::ReplyMarkup> &&reply_markup) const {
-  return get_reply_markup(std::move(reply_markup), dialog_id.get_type(), td_->auth_manager_->is_bot(),
-                          td_->dialog_manager_->is_anonymous_administrator(dialog_id, nullptr));
-}
-
-class MessagesManager::ForwardMessagesLogEvent {
- public:
-  DialogId to_dialog_id;
-  DialogId from_dialog_id;
-  vector<MessageId> message_ids;
-  vector<Message *> messages_in;
-  bool drop_author;
-  bool drop_media_captions;
-  vector<unique_ptr<Message>> messages_out;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(drop_author);
-    STORE_FLAG(drop_media_captions);
-    END_STORE_FLAGS();
-    td::store(to_dialog_id, storer);
-    td::store(from_dialog_id, storer);
-    td::store(message_ids, storer);
-    td::store(messages_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::UseServerForwardAsCopy)) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(drop_author);
-      PARSE_FLAG(drop_media_captions);
-      END_PARSE_FLAGS();
-    } else {
-      drop_author = false;
-      drop_media_captions = false;
-    }
-    td::parse(to_dialog_id, parser);
-    td::parse(from_dialog_id, parser);
-    td::parse(message_ids, parser);
-    td::parse(messages_out, parser);
-  }
-};
-
-uint64 MessagesManager::save_forward_messages_log_event(DialogId to_dialog_id, DialogId from_dialog_id,
-                                                        const vector<Message *> &messages,
-                                                        const vector<MessageId> &message_ids, bool drop_author,
-                                                        bool drop_media_captions) {
-  ForwardMessagesLogEvent log_event{to_dialog_id, from_dialog_id,      message_ids, messages,
-                                    drop_author,  drop_media_captions, Auto()};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ForwardMessages,
-                    get_log_event_storer(log_event));
-}
-
-void MessagesManager::do_forward_messages(DialogId to_dialog_id, DialogId from_dialog_id,
-                                          const vector<Message *> &messages, const vector<MessageId> &message_ids,
-                                          bool drop_author, bool drop_media_captions, uint64 log_event_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(messages.size() == message_ids.size());
-  if (messages.empty()) {
-    return;
-  }
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_forward_messages_log_event(to_dialog_id, from_dialog_id, messages, message_ids, drop_author,
-                                                   drop_media_captions);
-  }
-
-  auto schedule_date = get_message_schedule_date(messages[0]);
-  auto as_input_peer = get_send_message_as_input_peer(messages[0]);
-
-  int32 flags = 0;
-  if (messages[0]->disable_notification) {
-    flags |= SEND_MESSAGE_FLAG_DISABLE_NOTIFICATION;
-  }
-  if (messages[0]->from_background) {
-    flags |= SEND_MESSAGE_FLAG_FROM_BACKGROUND;
-  }
-  if (messages[0]->in_game_share) {
-    flags |= SEND_MESSAGE_FLAG_WITH_MY_SCORE;
-  }
-  if (schedule_date != 0) {
-    flags |= SEND_MESSAGE_FLAG_HAS_SCHEDULE_DATE;
-  }
-  if (as_input_peer != nullptr) {
-    flags |= SEND_MESSAGE_FLAG_HAS_SEND_AS;
-  }
-  if (messages[0]->noforwards) {
-    flags |= SEND_MESSAGE_FLAG_NOFORWARDS;
-  }
-  if (messages[0]->allow_paid) {
-    flags |= SEND_MESSAGE_FLAG_ALLOW_PAID;
-  }
-  if (messages[0]->paid_message_star_count) {
-    flags |= SEND_MESSAGE_FLAG_ALLOW_PAID_STARS;
-  }
-  if (drop_author) {
-    flags |= telegram_api::messages_forwardMessages::DROP_AUTHOR_MASK;
-  }
-  if (drop_media_captions) {
-    flags |= telegram_api::messages_forwardMessages::DROP_MEDIA_CAPTIONS_MASK;
-  }
-
-  vector<int64> random_ids =
-      transform(messages, [this, to_dialog_id](const Message *m) { return begin_send_message(to_dialog_id, m); });
-  send_closure_later(actor_id(this), &MessagesManager::send_forward_message_query, flags, to_dialog_id,
-                     messages[0]->initial_top_thread_message_id, from_dialog_id, std::move(as_input_peer), message_ids,
-                     std::move(random_ids), schedule_date, messages[0]->new_video_start_timestamp,
-                     messages[0]->paid_message_star_count * static_cast<int32>(messages.size()),
-                     get_erase_log_event_promise(log_event_id));
-}
-
-void MessagesManager::send_forward_message_query(int32 flags, DialogId to_dialog_id,
-                                                 const MessageId top_thread_message_id, DialogId from_dialog_id,
-                                                 tl_object_ptr<telegram_api::InputPeer> as_input_peer,
-                                                 vector<MessageId> message_ids, vector<int64> random_ids,
-                                                 int32 schedule_date, int32 new_video_start_timestamp,
-                                                 int64 paid_message_star_count, Promise<Unit> promise) {
-  td_->create_handler<ForwardMessagesQuery>(std::move(promise))
-      ->send(flags, to_dialog_id, top_thread_message_id, from_dialog_id, std::move(as_input_peer), message_ids,
-             std::move(random_ids), schedule_date, new_video_start_timestamp, paid_message_star_count);
-}
-
-Result<td_api::object_ptr<td_api::message>> MessagesManager::forward_message(
-    DialogId to_dialog_id, MessageId top_thread_message_id, DialogId from_dialog_id, MessageId message_id,
-    tl_object_ptr<td_api::messageSendOptions> &&options, bool in_game_share, int32 new_video_start_timestamp,
-    MessageCopyOptions &&copy_options) {
-  bool need_copy = copy_options.send_copy;
-  vector<MessageCopyOptions> all_copy_options;
-  all_copy_options.push_back(std::move(copy_options));
-  TRY_RESULT(result,
-             forward_messages(to_dialog_id, top_thread_message_id, from_dialog_id, {message_id}, std::move(options),
-                              in_game_share, new_video_start_timestamp, std::move(all_copy_options)));
-  CHECK(result->messages_.size() == 1);
-  if (result->messages_[0] == nullptr) {
-    return Status::Error(400,
-                         need_copy ? Slice("The message can't be copied") : Slice("The message can't be forwarded"));
-  }
-  return std::move(result->messages_[0]);
-}
-
-MessageOrigin MessagesManager::get_forwarded_message_origin(DialogId dialog_id, const Message *m) const {
-  CHECK(m != nullptr);
-  MessageOrigin origin;
-  if (m->forward_info != nullptr) {
-    origin = m->forward_info->get_origin();
-  } else if (m->is_channel_post) {
-    if (td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-      auto author_signature =
-          m->sender_user_id.is_valid() ? td_->user_manager_->get_user_title(m->sender_user_id) : m->author_signature;
-      origin = MessageOrigin{UserId(), dialog_id, m->message_id, std::move(author_signature), string()};
-    } else {
-      LOG(ERROR) << "Don't know how to forward a channel post not from a channel";
-    }
-  } else if (m->sender_user_id.is_valid() || m->sender_dialog_id.is_valid()) {
-    auto author_signature = m->author_signature;
-    origin = MessageOrigin{m->sender_user_id, m->sender_dialog_id, MessageId(), string(), std::move(author_signature)};
-  } else {
-    LOG(ERROR) << "Don't know how to forward a non-channel post message without forward info and sender";
-  }
-  origin.hide_sender_if_needed(td_);
-  return origin;
-}
-
-unique_ptr<MessageForwardInfo> MessagesManager::create_message_forward_info(DialogId from_dialog_id,
-                                                                            DialogId to_dialog_id,
-                                                                            const Message *m) const {
-  auto content_type = m->content->get_type();
-  if (content_type == MessageContentType::Game) {
-    return nullptr;
-  }
-
-  auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-
-  LastForwardedMessageInfo last_message_info;
-  if (to_dialog_id == my_dialog_id) {
-    last_message_info = LastForwardedMessageInfo(from_dialog_id, m->message_id, get_message_sender(m), string(),
-                                                 m->date, m->is_outgoing);
-  } else if (content_type == MessageContentType::Audio || content_type == MessageContentType::Story) {
-    return nullptr;
-  }
-
-  if (m->forward_info != nullptr) {
-    return MessageForwardInfo::copy_message_forward_info(td_, *m->forward_info, std::move(last_message_info));
-  }
-
-  if (from_dialog_id != my_dialog_id || content_type == MessageContentType::Dice) {
-    auto origin = get_forwarded_message_origin(from_dialog_id, m);
-    if (!origin.is_empty()) {
-      last_message_info.hide_sender_if_needed(td_);
-      if (last_message_info.get_dialog_id() != DialogId()) {
-        last_message_info = LastForwardedMessageInfo(from_dialog_id, m->message_id, DialogId(), string(), 0,
-                                                     m->is_outgoing && origin.get_sender() != my_dialog_id);
-      }
-      return td::make_unique<MessageForwardInfo>(std::move(origin), m->date, std::move(last_message_info), "", false);
-    }
-  }
-  return nullptr;
-}
-
-void MessagesManager::fix_forwarded_message(Message *m, DialogId to_dialog_id, const Message *forwarded_message,
-                                            int64 media_album_id, bool drop_author) const {
-  if (m->content->get_type() == MessageContentType::Audio) {
-    drop_author = true;
-  }
-  bool is_game = m->content->get_type() == MessageContentType::Game;
-  if (!drop_author || is_game) {
-    m->via_bot_user_id = forwarded_message->via_bot_user_id;
-  }
-  m->media_album_id = media_album_id;
-  if (!drop_author && forwarded_message->view_count > 0 && m->forward_info != nullptr && m->view_count == 0 &&
-      !(m->message_id.is_scheduled() && td_->dialog_manager_->is_broadcast_channel(to_dialog_id))) {
-    m->view_count = forwarded_message->view_count;
-    m->forward_count = forwarded_message->forward_count;
-    m->interaction_info_update_date = G()->unix_time();
-  }
-
-  if (m->content->get_type() == MessageContentType::Game) {
-    // via_bot_user_id in games is present unless the message is sent by the bot
-    if (m->via_bot_user_id == UserId()) {
-      // if there is no via_bot_user_id, then the original message was sent by the game owner
-      m->via_bot_user_id = forwarded_message->sender_user_id;
-    }
-    if (m->via_bot_user_id == td_->user_manager_->get_my_id()) {
-      // if via_bot_user_id is the current bot user, then there should be no via_bot
-      m->via_bot_user_id = UserId();
-    }
-  }
-  if (forwarded_message->reply_markup != nullptr &&
-      forwarded_message->reply_markup->type == ReplyMarkup::Type::InlineKeyboard &&
-      to_dialog_id.get_type() != DialogType::SecretChat) {
-    bool need_reply_markup = true;
-    for (auto &row : forwarded_message->reply_markup->inline_keyboard) {
-      for (auto &button : row) {
-        if (button.type == InlineKeyboardButton::Type::Url || button.type == InlineKeyboardButton::Type::UrlAuth) {
-          // ok
-          continue;
-        }
-        if (m->via_bot_user_id.is_valid() && (button.type == InlineKeyboardButton::Type::SwitchInline ||
-                                              button.type == InlineKeyboardButton::Type::SwitchInlineCurrentDialog)) {
-          // ok
-          continue;
-        }
-
-        need_reply_markup = false;
-      }
-    }
-    if (need_reply_markup) {
-      m->reply_markup = dup_reply_markup(forwarded_message->reply_markup);
-      for (auto &row : m->reply_markup->inline_keyboard) {
-        for (auto &button : row) {
-          if (button.type == InlineKeyboardButton::Type::SwitchInlineCurrentDialog) {
-            button.type = InlineKeyboardButton::Type::SwitchInline;
-          }
-          if (!button.forward_text.empty()) {
-            button.text = std::move(button.forward_text);
-            button.forward_text.clear();
-          }
-        }
-      }
-    }
-  }
-}
-
-Result<MessagesManager::ForwardedMessages> MessagesManager::get_forwarded_messages(
-    DialogId to_dialog_id, MessageId top_thread_message_id, DialogId from_dialog_id,
-    const vector<MessageId> &message_ids, tl_object_ptr<td_api::messageSendOptions> &&options,
-    int32 new_video_start_timestamp, vector<MessageCopyOptions> &&copy_options) {
-  CHECK(copy_options.size() == message_ids.size());
-  if (message_ids.size() > 100) {  // TODO replace with const from config or implement mass-forward
-    return Status::Error(400, "Too many messages to forward");
-  }
-  if (message_ids.empty()) {
-    return Status::Error(400, "There are no messages to forward");
-  }
-
-  Dialog *from_dialog = get_dialog_force(from_dialog_id, "forward_messages from");
-  if (from_dialog == nullptr) {
-    return Status::Error(400, "Chat to forward messages from not found");
-  }
-  if (!td_->dialog_manager_->have_input_peer(from_dialog_id, false, AccessRights::Read)) {
-    return Status::Error(400, "Can't access the chat to forward messages from");
-  }
-  if (td_->dialog_manager_->get_dialog_has_protected_content(from_dialog_id)) {
-    for (const auto &copy_option : copy_options) {
-      if (!copy_option.send_copy || !td_->auth_manager_->is_bot()) {
-        return Status::Error(400, "Message has protected content and can't be forwarded");
-      }
-    }
-  }
-
-  Dialog *to_dialog = get_dialog_force(to_dialog_id, "forward_messages to");
-  if (to_dialog == nullptr) {
-    return Status::Error(400, "Chat to forward messages to not found");
-  }
-
-  TRY_STATUS(can_send_message(to_dialog_id));
-  TRY_RESULT(message_send_options, process_message_send_options(to_dialog_id, std::move(options), false, false,
-                                                                static_cast<int32>(message_ids.size())));
-  TRY_STATUS(can_use_top_thread_message_id(to_dialog, top_thread_message_id, MessageInputReplyTo()));
-
-  {
-    MessageId last_message_id;
-    for (auto message_id : message_ids) {
-      if (message_id.is_valid_scheduled()) {
-        return Status::Error(400, "Can't forward scheduled messages");
-      }
-      if (message_id.is_scheduled() || !message_id.is_valid()) {
-        return Status::Error(400, "Invalid message identifier");
-      }
-
-      if (message_id <= last_message_id) {
-        return Status::Error(400, "Message identifiers must be in a strictly increasing order");
-      }
-      last_message_id = message_id;
-    }
-  }
-
-  bool to_secret = to_dialog_id.get_type() == DialogType::SecretChat;
-
-  bool can_use_server_forward = true;
-  for (auto &copy_option : copy_options) {
-    if (!copy_option.is_supported_server_side(top_thread_message_id)) {
-      can_use_server_forward = false;
-      break;
-    }
-  }
-  CHECK(can_use_server_forward || copy_options.size() == 1);
-  if (to_secret) {
-    can_use_server_forward = false;
-  }
-
-  ForwardedMessages result;
-  result.to_dialog = to_dialog;
-  result.from_dialog = from_dialog;
-  result.message_send_options = message_send_options;
-  auto &copied_messages = result.copied_messages;
-  auto &forwarded_message_contents = result.forwarded_message_contents;
-  result.drop_author = can_use_server_forward && copy_options[0].send_copy;
-  result.drop_media_captions = can_use_server_forward && copy_options[0].replace_caption;
-
-  std::unordered_map<int64, std::pair<int64, int32>, Hash<int64>> new_copied_media_album_ids;
-  std::unordered_map<int64, std::pair<int64, int32>, Hash<int64>> new_forwarded_media_album_ids;
-
-  for (size_t i = 0; i < message_ids.size(); i++) {
-    MessageId message_id = get_persistent_message_id(from_dialog, message_ids[i]);
-
-    const Message *forwarded_message = get_message_force(from_dialog, message_id, "get_forwarded_messages");
-    if (forwarded_message == nullptr) {
-      LOG(INFO) << "Can't find " << message_id << " to forward";
-      continue;
-    }
-    CHECK(message_id.is_valid());
-    CHECK(message_id == forwarded_message->message_id);
-
-    if (!can_forward_message(from_dialog_id, forwarded_message)) {
-      LOG(INFO) << "Can't forward " << message_id;
-      continue;
-    }
-
-    bool is_broken_server_copy = [&] {
-      switch (forwarded_message->content->get_type()) {
-        case MessageContentType::Dice:
-          return true;
-        default:
-          return false;
-      }
-    }();
-
-    bool need_copy = !message_id.is_server() || to_secret || copy_options[i].send_copy;
-    bool is_local_copy = need_copy && !(message_id.is_server() && can_use_server_forward && !is_broken_server_copy);
-    if (!(need_copy && td_->auth_manager_->is_bot()) && !can_save_message(from_dialog_id, forwarded_message)) {
-      LOG(INFO) << "Forward of " << message_id << " is restricted";
-      continue;
-    }
-
-    auto type = need_copy ? (is_local_copy ? MessageContentDupType::Copy : MessageContentDupType::ServerCopy)
-                          : MessageContentDupType::Forward;
-    auto input_reply_to = std::move(copy_options[i].input_reply_to);
-    auto reply_markup = std::move(copy_options[i].reply_markup);
-    auto new_invert_media = is_local_copy && copy_options[i].replace_caption &&
-                                    is_allowed_invert_caption_message_content(forwarded_message->content->get_type())
-                                ? copy_options[i].new_invert_media
-                                : forwarded_message->invert_media;
-    unique_ptr<MessageContent> content =
-        dup_message_content(td_, to_dialog_id, forwarded_message->content.get(), type, std::move(copy_options[i]));
-    if (content == nullptr) {
-      LOG(INFO) << "Can't forward content of " << message_id;
-      continue;
-    }
-
-    auto can_send_status = can_send_message_content(to_dialog_id, content.get(), !is_local_copy,
-                                                    !need_copy || !message_send_options.allow_paid, td_);
-    if (can_send_status.is_error()) {
-      LOG(INFO) << "Can't forward " << message_id << ": " << can_send_status.message();
-      continue;
-    }
-
-    auto can_use_options_status =
-        can_use_message_send_options(message_send_options, content, MessageSelfDestructType());
-    if (can_use_options_status.is_error()) {
-      LOG(INFO) << "Can't forward " << message_id << ": " << can_send_status.message();
-      continue;
-    }
-
-    if (can_use_top_thread_message_id(to_dialog, top_thread_message_id, input_reply_to).is_error()) {
-      LOG(INFO) << "Ignore invalid message thread ID " << top_thread_message_id;
-      top_thread_message_id = MessageId();
-    }
-
-    if (new_video_start_timestamp >= 0) {
-      set_message_content_video_start_timestamp(content.get(), new_video_start_timestamp);
-    }
-
-    if (forwarded_message->media_album_id != 0) {
-      auto &new_media_album_id = is_local_copy ? new_copied_media_album_ids[forwarded_message->media_album_id]
-                                               : new_forwarded_media_album_ids[forwarded_message->media_album_id];
-      new_media_album_id.second++;
-      if (new_media_album_id.second == 2) {  // have at least 2 messages in the new album
-        CHECK(new_media_album_id.first == 0);
-        new_media_album_id.first = generate_new_media_album_id();
-      }
-      if (new_media_album_id.second == MAX_GROUPED_MESSAGES + 1) {
-        CHECK(new_media_album_id.first != 0);
-        new_media_album_id.first = 0;  // just in case
-      }
-    }
-
-    if (is_local_copy) {
-      auto original_reply_to_message_id =
-          forwarded_message->replied_message_info.get_same_chat_reply_to_message_id(true);
-      copied_messages.push_back({std::move(content), std::move(input_reply_to), forwarded_message->message_id,
-                                 original_reply_to_message_id, std::move(reply_markup),
-                                 forwarded_message->media_album_id,
-                                 get_message_disable_web_page_preview(forwarded_message), new_invert_media, i});
-    } else {
-      forwarded_message_contents.push_back(
-          {std::move(content), new_invert_media, forwarded_message->media_album_id, i});
-    }
-  }
-  result.top_thread_message_id = top_thread_message_id;
-
-  if (2 <= forwarded_message_contents.size() && forwarded_message_contents.size() <= MAX_GROUPED_MESSAGES) {
-    std::unordered_set<MessageContentType, MessageContentTypeHash> message_content_types;
-    std::unordered_set<DialogId, DialogIdHash> sender_dialog_ids;
-    for (auto &message_content : forwarded_message_contents) {
-      message_content_types.insert(message_content.content->get_type());
-
-      MessageId message_id = get_persistent_message_id(from_dialog, message_ids[message_content.index]);
-      sender_dialog_ids.insert(get_message_original_sender(get_message(from_dialog, message_id)));
-    }
-    if (message_content_types.size() == 1 && is_homogenous_media_group_content(*message_content_types.begin()) &&
-        sender_dialog_ids.size() == 1 && *sender_dialog_ids.begin() != DialogId()) {
-      new_forwarded_media_album_ids[0].first = generate_new_media_album_id();
-      for (auto &message : forwarded_message_contents) {
-        message.media_album_id = 0;
-      }
-    }
-  }
-  for (auto &message : forwarded_message_contents) {
-    message.media_album_id = new_forwarded_media_album_ids[message.media_album_id].first;
-  }
-
-  if (2 <= copied_messages.size() && copied_messages.size() <= MAX_GROUPED_MESSAGES) {
-    std::unordered_set<MessageContentType, MessageContentTypeHash> message_content_types;
-    for (auto &copied_message : copied_messages) {
-      message_content_types.insert(copied_message.content->get_type());
-    }
-    if (message_content_types.size() == 1 && is_homogenous_media_group_content(*message_content_types.begin())) {
-      new_copied_media_album_ids[0].first = generate_new_media_album_id();
-      for (auto &message : copied_messages) {
-        message.media_album_id = 0;
-      }
-    }
-  }
-  for (auto &message : copied_messages) {
-    message.media_album_id = new_copied_media_album_ids[message.media_album_id].first;
-  }
-  return std::move(result);
-}
-
-Result<td_api::object_ptr<td_api::messages>> MessagesManager::forward_messages(
-    DialogId to_dialog_id, MessageId top_thread_message_id, DialogId from_dialog_id, vector<MessageId> message_ids,
-    tl_object_ptr<td_api::messageSendOptions> &&options, bool in_game_share, int32 new_video_start_timestamp,
-    vector<MessageCopyOptions> &&copy_options) {
-  TRY_RESULT(forwarded_messages_info,
-             get_forwarded_messages(to_dialog_id, top_thread_message_id, from_dialog_id, message_ids,
-                                    std::move(options), new_video_start_timestamp, std::move(copy_options)));
-  auto from_dialog = forwarded_messages_info.from_dialog;
-  auto to_dialog = forwarded_messages_info.to_dialog;
-  const auto message_send_options = forwarded_messages_info.message_send_options;
-  auto &copied_messages = forwarded_messages_info.copied_messages;
-  auto &forwarded_message_contents = forwarded_messages_info.forwarded_message_contents;
-  auto drop_author = forwarded_messages_info.drop_author;
-  auto drop_media_captions = forwarded_messages_info.drop_media_captions;
-  top_thread_message_id = forwarded_messages_info.top_thread_message_id;
-
-  FlatHashMap<MessageId, MessageId, MessageIdHash> forwarded_message_id_to_new_message_id;
-  vector<td_api::object_ptr<td_api::message>> result(message_ids.size());
-  vector<Message *> forwarded_messages;
-  vector<MessageId> forwarded_message_ids;
-  bool need_update_dialog_pos = false;
-  for (size_t j = 0; j < forwarded_message_contents.size(); j++) {
-    MessageId message_id = get_persistent_message_id(from_dialog, message_ids[forwarded_message_contents[j].index]);
-    const Message *forwarded_message = get_message(from_dialog, message_id);
-    CHECK(forwarded_message != nullptr);
-
-    auto content = std::move(forwarded_message_contents[j].content);
-    auto forward_info =
-        drop_author ? nullptr : create_message_forward_info(from_dialog_id, to_dialog_id, forwarded_message);
-    MessageInputReplyTo input_reply_to;
-    auto original_reply_to_message_id = forwarded_message->replied_message_info.get_same_chat_reply_to_message_id(true);
-    if (original_reply_to_message_id.is_valid()) {
-      auto it = forwarded_message_id_to_new_message_id.find(original_reply_to_message_id);
-      if (it != forwarded_message_id_to_new_message_id.end()) {
-        input_reply_to = forwarded_message->replied_message_info.get_input_reply_to();
-        input_reply_to.set_message_id(it->second);
-      }
-    }
-
-    unique_ptr<Message> message;
-    Message *m;
-    if (message_send_options.only_preview) {
-      message = create_message_to_send(
-          to_dialog, top_thread_message_id, std::move(input_reply_to), message_send_options, std::move(content),
-          forwarded_message_contents[j].invert_media, j + 1 != forwarded_message_contents.size(),
-          std::move(forward_info), from_dialog_id, false, DialogId());
-      m = message.get();
-    } else {
-      m = get_message_to_send(to_dialog, top_thread_message_id, std::move(input_reply_to), message_send_options,
-                              std::move(content), forwarded_message_contents[j].invert_media, &need_update_dialog_pos,
-                              j + 1 != forwarded_message_contents.size(), std::move(forward_info), from_dialog_id);
-    }
-    fix_forwarded_message(m, to_dialog_id, forwarded_message, forwarded_message_contents[j].media_album_id,
-                          drop_author);
-    m->in_game_share = in_game_share;
-    m->new_video_start_timestamp = new_video_start_timestamp;
-    m->real_forward_from_message_id = message_id;
-    forwarded_message_id_to_new_message_id.emplace(message_id, m->message_id);
-    if (forwarded_message->replied_message_info.is_external()) {
-      if (!message_send_options.only_preview) {
-        unregister_message_reply(to_dialog_id, m);
-      }
-      m->replied_message_info = forwarded_message->replied_message_info.clone(td_);
-      if (!message_send_options.only_preview) {
-        register_message_reply(to_dialog_id, m);
-      }
-    }
-
-    if (!message_send_options.only_preview) {
-      if (!td_->auth_manager_->is_bot()) {
-        send_update_new_message(to_dialog, m);
-      }
-      forwarded_messages.push_back(m);
-      forwarded_message_ids.push_back(message_id);
-    }
-
-    result[forwarded_message_contents[j].index] = get_message_object(to_dialog_id, m, "forward_messages");
-  }
-
-  if (!forwarded_messages.empty()) {
-    CHECK(!message_send_options.only_preview);
-    do_forward_messages(to_dialog_id, from_dialog_id, forwarded_messages, forwarded_message_ids, drop_author,
-                        drop_media_captions, 0);
-  }
-
-  bool is_secret = to_dialog_id.get_type() == DialogType::SecretChat;
-  bool is_copy = !is_secret;
-  bool need_invalidate_authentication_code =
-      from_dialog_id == DialogId(UserManager::get_service_notifications_user_id()) && !td_->auth_manager_->is_bot();
-  vector<string> authentication_codes;
-  for (const auto &copied_message : copied_messages) {
-    if (forwarded_message_id_to_new_message_id.count(copied_message.original_reply_to_message_id) > 0) {
-      is_copy = true;
-      break;
-    }
-    forwarded_message_id_to_new_message_id.emplace(copied_message.original_message_id, MessageId());
-  }
-  for (auto &copied_message : copied_messages) {
-    auto input_reply_to = std::move(copied_message.input_reply_to);
-    if (!input_reply_to.is_valid() && copied_message.original_reply_to_message_id.is_valid() && is_secret) {
-      auto it = forwarded_message_id_to_new_message_id.find(copied_message.original_reply_to_message_id);
-      if (it != forwarded_message_id_to_new_message_id.end()) {
-        input_reply_to = MessageInputReplyTo{it->second, DialogId(), MessageQuote()};
-      }
-    }
-
-    unique_ptr<Message> message;
-    Message *m;
-    if (message_send_options.only_preview) {
-      message = create_message_to_send(to_dialog, top_thread_message_id, std::move(input_reply_to),
-                                       message_send_options, std::move(copied_message.content),
-                                       copied_message.invert_media, false, nullptr, DialogId(), is_copy, DialogId());
-      m = message.get();
-    } else {
-      if (need_invalidate_authentication_code) {
-        const Message *forwarded_message = get_message(from_dialog, copied_message.original_message_id);
-        CHECK(forwarded_message != nullptr);
-        extract_authentication_codes(from_dialog_id, forwarded_message, authentication_codes);
-      }
-
-      m = get_message_to_send(to_dialog, top_thread_message_id, std::move(input_reply_to), message_send_options,
-                              std::move(copied_message.content), copied_message.invert_media, &need_update_dialog_pos,
-                              false, nullptr, DialogId(), is_copy);
-    }
-    m->disable_web_page_preview = copied_message.disable_web_page_preview;
-    m->media_album_id = copied_message.media_album_id;
-    m->reply_markup = std::move(copied_message.reply_markup);
-    forwarded_message_id_to_new_message_id[copied_message.original_message_id] = m->message_id;
-
-    if (!message_send_options.only_preview) {
-      save_send_message_log_event(to_dialog_id, m);
-      do_send_message(to_dialog_id, m);
-      if (!td_->auth_manager_->is_bot()) {
-        send_update_new_message(to_dialog, m);
-      }
-    }
-
-    result[copied_message.index] = get_message_object(to_dialog_id, m, "forward_messages");
-  }
-
-  if (need_update_dialog_pos) {
-    CHECK(!message_send_options.only_preview);
-    send_update_chat_last_message(to_dialog, "forward_messages");
-  }
-
-  if (!authentication_codes.empty()) {
-    td_->account_manager_->invalidate_authentication_codes(std::move(authentication_codes));
-  }
-
-  return get_messages_object(-1, std::move(result), false);
-}
-
-Result<td_api::object_ptr<td_api::messages>> MessagesManager::send_quick_reply_shortcut_messages(
-    DialogId dialog_id, QuickReplyShortcutId shortcut_id, int32 sending_id) {
-  TRY_RESULT(message_contents, td_->quick_reply_manager_->get_quick_reply_message_contents(dialog_id, shortcut_id));
-
-  if (message_contents.empty()) {
-    return td_api::make_object<td_api::messages>();
-  }
-
-  std::unordered_map<int64, std::pair<int64, int32>, Hash<int64>> new_media_album_ids;
-  for (auto &content : message_contents) {
-    if (content.media_album_id_ == 0) {
-      continue;
-    }
-    auto &new_media_album_id = new_media_album_ids[content.media_album_id_];
-    new_media_album_id.second++;
-    if (new_media_album_id.second == 2) {  // have at least 2 messages in the new album
-      CHECK(new_media_album_id.first == 0);
-      new_media_album_id.first = generate_new_media_album_id();
-    }
-    if (new_media_album_id.second == MAX_GROUPED_MESSAGES + 1) {
-      CHECK(new_media_album_id.first != 0);
-      new_media_album_id.first = 0;  // just in case
-    }
-  }
-  for (auto &content : message_contents) {
-    content.media_album_id_ = new_media_album_ids[content.media_album_id_].first;
-  }
-
-  auto *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  MessageSendOptions message_send_options(false, false, false, false, false, false, 0, sending_id, MessageEffectId(),
-                                          0);
-  FlatHashMap<MessageId, MessageId, MessageIdHash> original_message_id_to_new_message_id;
-  vector<td_api::object_ptr<td_api::message>> result;
-  vector<Message *> sent_messages;
-  vector<MessageId> sent_message_ids;
-  bool need_update_dialog_pos = false;
-  for (auto &content : message_contents) {
-    MessageInputReplyTo input_reply_to;
-    if (content.original_reply_to_message_id_.is_valid()) {
-      auto it = original_message_id_to_new_message_id.find(content.original_reply_to_message_id_);
-      if (it != original_message_id_to_new_message_id.end()) {
-        input_reply_to = MessageInputReplyTo{it->second, DialogId(), MessageQuote()};
-      }
-    }
-
-    Message *m = get_message_to_send(d, MessageId(), std::move(input_reply_to), message_send_options,
-                                     std::move(content.content_), content.invert_media_, &need_update_dialog_pos, false,
-                                     nullptr, DialogId(), true);
-    m->via_bot_user_id = content.via_bot_user_id_;
-    m->reply_markup = std::move(content.reply_markup_);
-    m->disable_web_page_preview = content.disable_web_page_preview_;
-    m->media_album_id = content.media_album_id_;
-    original_message_id_to_new_message_id.emplace(content.original_message_id_, m->message_id);
-
-    if (!td_->auth_manager_->is_bot()) {
-      send_update_new_message(d, m);
-    }
-    sent_messages.push_back(m);
-    sent_message_ids.push_back(content.original_message_id_);
-
-    result.push_back(get_message_object(dialog_id, m, "send_quick_reply_shortcut_messages"));
-  }
-
-  do_send_quick_reply_shortcut_messages(dialog_id, shortcut_id, sent_messages, sent_message_ids, 0);
-
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, "send_quick_reply_shortcut_messages");
-  }
-
-  return get_messages_object(-1, std::move(result), false);
-}
-
-class MessagesManager::SendQuickReplyShortcutMessagesLogEvent {
- public:
-  DialogId dialog_id;
-  QuickReplyShortcutId shortcut_id;
-  vector<MessageId> message_ids;
-  vector<Message *> messages_in;
-  vector<unique_ptr<Message>> messages_out;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    END_STORE_FLAGS();
-    td::store(dialog_id, storer);
-    td::store(shortcut_id, storer);
-    td::store(message_ids, storer);
-    td::store(messages_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    END_PARSE_FLAGS();
-    td::parse(dialog_id, parser);
-    td::parse(shortcut_id, parser);
-    td::parse(message_ids, parser);
-    td::parse(messages_out, parser);
-  }
-};
-
-uint64 MessagesManager::save_send_quick_reply_shortcut_messages_log_event(DialogId dialog_id,
-                                                                          QuickReplyShortcutId shortcut_id,
-                                                                          const vector<Message *> &messages,
-                                                                          const vector<MessageId> &message_ids) {
-  SendQuickReplyShortcutMessagesLogEvent log_event{dialog_id, shortcut_id, message_ids, messages, Auto()};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SendQuickReplyShortcutMessages,
-                    get_log_event_storer(log_event));
-}
-
-void MessagesManager::do_send_quick_reply_shortcut_messages(DialogId dialog_id, QuickReplyShortcutId shortcut_id,
-                                                            const vector<Message *> &messages,
-                                                            const vector<MessageId> &message_ids, uint64 log_event_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(messages.size() == message_ids.size());
-  if (messages.empty()) {
-    return;
-  }
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_send_quick_reply_shortcut_messages_log_event(dialog_id, shortcut_id, messages, message_ids);
-  }
-
-  vector<int64> random_ids =
-      transform(messages, [this, dialog_id](const Message *m) { return begin_send_message(dialog_id, m); });
-  send_closure_later(actor_id(this), &MessagesManager::send_send_quick_reply_messages_query, dialog_id, shortcut_id,
-                     message_ids, std::move(random_ids), get_erase_log_event_promise(log_event_id));
-}
-
-void MessagesManager::send_send_quick_reply_messages_query(DialogId dialog_id, QuickReplyShortcutId shortcut_id,
-                                                           vector<MessageId> message_ids, vector<int64> random_ids,
-                                                           Promise<Unit> promise) {
-  td_->create_handler<SendQuickReplyMessagesQuery>(std::move(promise))
-      ->send(dialog_id, shortcut_id, std::move(message_ids), std::move(random_ids));
-}
-
-Result<vector<MessageId>> MessagesManager::resend_messages(DialogId dialog_id, vector<MessageId> message_ids,
-                                                           td_api::object_ptr<td_api::inputTextQuote> &&quote,
-                                                           int64 paid_message_star_count) {
-  if (message_ids.empty()) {
-    return Status::Error(400, "There are no messages to resend");
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "resend_messages");
-  if (d == nullptr) {
-    return Status::Error(400, "Chat not found");
-  }
-
-  TRY_STATUS(can_send_message(dialog_id));
-
-  MessageId last_message_id;
-  for (auto &message_id : message_ids) {
-    message_id = get_persistent_message_id(d, message_id);
-    const Message *m = get_message_force(d, message_id, "resend_messages");
-    if (m == nullptr) {
-      return Status::Error(400, "Message not found");
-    }
-    if (!m->is_failed_to_send) {
-      return Status::Error(400, "Message is not failed to send");
-    }
-    if (!can_resend_message(m)) {
-      return Status::Error(400, "Message can't be re-sent");
-    }
-    if (m->try_resend_at > Time::now()) {
-      return Status::Error(400, "Message can't be re-sent yet");
-    }
-    if (last_message_id != MessageId()) {
-      if (m->message_id.is_scheduled() != last_message_id.is_scheduled()) {
-        return Status::Error(400, "Messages must be all scheduled or ordinary");
-      }
-      if (m->message_id <= last_message_id) {
-        return Status::Error(400, "Message identifiers must be in a strictly increasing order");
-      }
-    }
-    last_message_id = m->message_id;
-  }
-
-  vector<unique_ptr<MessageContent>> new_contents(message_ids.size());
-  std::unordered_map<int64, std::pair<int64, int32>, Hash<int64>> new_media_album_ids;
-  int32 paid_message_count = 0;
-  for (size_t i = 0; i < message_ids.size(); i++) {
-    MessageId message_id = message_ids[i];
-    const Message *m = get_message(d, message_id);
-    CHECK(m != nullptr);
-
-    unique_ptr<MessageContent> content =
-        dup_message_content(td_, dialog_id, m->content.get(), MessageContentDupType::Send, MessageCopyOptions());
-    if (content == nullptr) {
-      LOG(INFO) << "Can't resend " << m->message_id;
-      continue;
-    }
-
-    auto can_send_status = can_send_message_content(dialog_id, content.get(), false, true, td_);
-    if (can_send_status.is_error()) {
-      LOG(INFO) << "Can't resend " << m->message_id << ": " << can_send_status.message();
-      continue;
-    }
-
-    new_contents[i] = std::move(content);
-
-    if (m->media_album_id != 0) {
-      auto &new_media_album_id = new_media_album_ids[m->media_album_id];
-      new_media_album_id.second++;
-      if (new_media_album_id.second == 2) {  // have at least 2 messages in the new album
-        CHECK(new_media_album_id.first == 0);
-        new_media_album_id.first = generate_new_media_album_id();
-      }
-      if (new_media_album_id.second == MAX_GROUPED_MESSAGES + 1) {
-        CHECK(new_media_album_id.first != 0);
-        new_media_album_id.first = 0;  // just in case
-      }
-    }
-
-    auto error_code = m->send_error_code > 0 ? m->send_error_code : 400;
-    auto required_paid_message_star_count = get_required_paid_message_star_count(error_code, m->send_error_message);
-    if (required_paid_message_star_count > 0) {
-      paid_message_count++;
-    }
-  }
-  if (paid_message_count > 0) {
-    TRY_STATUS(check_paid_message_star_count(paid_message_star_count, paid_message_count));
-  }
-
-  vector<MessageId> result(message_ids.size());
-  bool need_update_dialog_pos = false;
-  for (size_t i = 0; i < message_ids.size(); i++) {
-    if (new_contents[i] == nullptr) {
-      continue;
-    }
-
-    being_readded_message_id_ = {dialog_id, message_ids[i]};
-    auto message = delete_message(d, message_ids[i], true, &need_update_dialog_pos, "resend_messages");
-    CHECK(message != nullptr);
-    send_update_delete_messages(dialog_id, {message->message_id.get()}, true);
-
-    auto error_code = message->send_error_code > 0 ? message->send_error_code : 400;
-    auto need_another_sender = error_code == 400 && message->send_error_message == CSlice("SEND_AS_PEER_INVALID");
-    auto need_another_reply_quote = error_code == 400 && message->send_error_message == CSlice("QUOTE_TEXT_INVALID");
-    auto need_drop_reply = error_code == 400 && message->send_error_message == CSlice("REPLY_MESSAGE_ID_INVALID");
-    auto required_paid_message_star_count =
-        get_required_paid_message_star_count(error_code, message->send_error_message);
-    if (need_another_reply_quote && message_ids.size() == 1 && quote != nullptr) {
-      CHECK(message->input_reply_to.is_valid());
-      CHECK(message->input_reply_to.has_quote());  // checked in on_send_message_fail
-      message->input_reply_to.set_quote(MessageQuote{td_, std::move(quote)});
-    } else if (need_drop_reply) {
-      message->input_reply_to = {};
-    }
-    MessageSendOptions options(
-        message->disable_notification, message->from_background, message->update_stickersets_order, message->noforwards,
-        message->allow_paid, false, get_message_schedule_date(message.get()), message->sending_id, message->effect_id,
-        required_paid_message_star_count == 0 ? message->paid_message_star_count : paid_message_star_count);
-    Message *m = get_message_to_send(d, message->top_thread_message_id, std::move(message->input_reply_to), options,
-                                     std::move(new_contents[i]), message->invert_media, &need_update_dialog_pos, false,
-                                     nullptr, DialogId(), message->is_copy,
-                                     need_another_sender ? DialogId() : get_message_sender(message.get()));
-    m->reply_markup = std::move(message->reply_markup);
-    // m->via_bot_user_id = message->via_bot_user_id;
-    m->disable_web_page_preview = message->disable_web_page_preview;
-    m->clear_draft = false;  // never clear draft in resend
-    m->ttl = message->ttl;
-    m->is_content_secret = message->is_content_secret;
-    m->media_album_id = new_media_album_ids[message->media_album_id].first;
-    m->send_emoji = message->send_emoji;
-    m->has_explicit_sender |= message->has_explicit_sender;
-
-    save_send_message_log_event(dialog_id, m);
-    do_send_message(dialog_id, m);
-
-    send_update_new_message(d, m);
-
-    result[i] = m->message_id;
-    being_readded_message_id_ = MessageFullId();
-  }
-
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, "resend_messages");
-  }
-
-  return result;
-}
-
-void MessagesManager::send_screenshot_taken_notification_message(Dialog *d) {
-  LOG(INFO) << "Begin to send notification about taken screenshot in " << d->dialog_id;
-  auto dialog_type = d->dialog_id.get_type();
-  if (dialog_type == DialogType::User) {
-    bool need_update_dialog_pos = false;
-    const Message *m = get_message_to_send(d, MessageId(), MessageInputReplyTo(), MessageSendOptions(),
-                                           create_screenshot_taken_message_content(), false, &need_update_dialog_pos);
-
-    do_send_screenshot_taken_notification_message(d->dialog_id, m, 0);
-
-    send_update_new_message(d, m);
-    if (need_update_dialog_pos) {
-      send_update_chat_last_message(d, "send_screenshot_taken_notification_message");
-    }
-  } else {
-    CHECK(dialog_type == DialogType::SecretChat);
-    send_closure(td_->secret_chats_manager_, &SecretChatsManager::notify_screenshot_taken,
-                 d->dialog_id.get_secret_chat_id(), Promise<Unit>());
-  }
-}
-
-class MessagesManager::SendScreenshotTakenNotificationMessageLogEvent {
- public:
-  DialogId dialog_id;
-  const Message *m_in = nullptr;
-  unique_ptr<Message> message_out;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id, storer);
-    td::store(*m_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id, parser);
-    td::parse(message_out, parser);
-  }
-};
-
-uint64 MessagesManager::save_send_screenshot_taken_notification_message_log_event(DialogId dialog_id,
-                                                                                  const Message *m) {
-  if (!G()->use_message_database()) {
-    return 0;
-  }
-
-  CHECK(m != nullptr);
-  LOG(INFO) << "Save " << MessageFullId(dialog_id, m->message_id) << " to binlog";
-  SendScreenshotTakenNotificationMessageLogEvent log_event;
-  log_event.dialog_id = dialog_id;
-  log_event.m_in = m;
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SendScreenshotTakenNotificationMessage,
-                    get_log_event_storer(log_event));
-}
-
-void MessagesManager::do_send_screenshot_taken_notification_message(DialogId dialog_id, const Message *m,
-                                                                    uint64 log_event_id) {
-  LOG(INFO) << "Do send screenshot taken notification " << MessageFullId(dialog_id, m->message_id);
-  CHECK(dialog_id.get_type() == DialogType::User);
-
-  if (log_event_id == 0) {
-    log_event_id = save_send_screenshot_taken_notification_message_log_event(dialog_id, m);
-  }
-
-  int64 random_id = begin_send_message(dialog_id, m);
-  td_->create_handler<SendScreenshotNotificationQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(dialog_id, random_id);
-}
-
-void MessagesManager::share_dialogs_with_bot(MessageFullId message_full_id, int32 button_id,
-                                             vector<DialogId> shared_dialog_ids, bool expect_user, bool only_check,
-                                             Promise<Unit> &&promise) {
-  const Message *m = get_message_force(message_full_id, "share_dialog_with_bot");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (m->reply_markup == nullptr) {
-    return promise.set_error(Status::Error(400, "Message has no buttons"));
-  }
-  CHECK(m->message_id.is_valid() && m->message_id.is_server());
-  TRY_STATUS_PROMISE(promise, m->reply_markup->check_shared_dialog_count(button_id, shared_dialog_ids.size()));
-  for (auto shared_dialog_id : shared_dialog_ids) {
-    if (shared_dialog_id.get_type() != DialogType::User) {
-      if (!have_dialog_force(shared_dialog_id, "share_dialogs_with_bot")) {
-        return promise.set_error(Status::Error(400, "Shared chat not found"));
-      }
-    } else {
-      if (!expect_user) {
-        return promise.set_error(Status::Error(400, "Wrong chat type"));
-      }
-      if (!td_->user_manager_->have_user(shared_dialog_id.get_user_id())) {
-        return promise.set_error(Status::Error(400, "Shared user not found"));
-      }
-    }
-    TRY_STATUS_PROMISE(promise, m->reply_markup->check_shared_dialog(td_, button_id, shared_dialog_id));
-  }
-
-  if (only_check) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<SendBotRequestedPeerQuery>(std::move(promise))
-      ->send(message_full_id, button_id, std::move(shared_dialog_ids));
-}
-
-Result<MessageId> MessagesManager::add_local_message(
-    DialogId dialog_id, td_api::object_ptr<td_api::MessageSender> &&sender,
-    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, bool disable_notification,
-    tl_object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  if (input_message_content == nullptr) {
-    return Status::Error(400, "Can't add local message without content");
-  }
-
-  TRY_RESULT(d, check_dialog_access(dialog_id, true, AccessRights::Read, "add_local_message"));
-  TRY_RESULT(message_content, process_input_message_content(dialog_id, std::move(input_message_content), false));
-  if (!can_be_local_message_content(message_content.content->get_type())) {
-    return Status::Error(400, "Can't add a local message with the specified content");
-  }
-
-  bool is_channel_post = td_->dialog_manager_->is_broadcast_channel(dialog_id);
-  UserId sender_user_id;
-  DialogId sender_dialog_id;
-  if (sender != nullptr) {
-    TRY_RESULT_ASSIGN(sender_dialog_id, get_message_sender_dialog_id(td_, sender, true, false));
-    auto sender_dialog_type = sender_dialog_id.get_type();
-    if (sender_dialog_type == DialogType::User) {
-      sender_user_id = sender_dialog_id.get_user_id();
-      sender_dialog_id = DialogId();
-    } else if (sender_dialog_type != DialogType::Channel) {
-      return Status::Error(400, "Sender chat must be a supergroup or channel");
-    }
-  } else if (is_channel_post) {
-    sender_dialog_id = dialog_id;
-  } else {
-    return Status::Error(400, "The message must have a sender");
-  }
-  if (is_channel_post && sender_user_id.is_valid() &&
-      !td_->chat_manager_->get_channel_show_message_sender(dialog_id.get_channel_id())) {
-    return Status::Error(400, "Channel post can't have user as a sender");
-  }
-
-  auto dialog_type = dialog_id.get_type();
-  auto my_id = td_->user_manager_->get_my_id();
-  if (sender_user_id != my_id) {
-    if (dialog_type == DialogType::User && DialogId(sender_user_id) != dialog_id) {
-      return Status::Error(400, "Wrong sender user");
-    }
-    if (dialog_type == DialogType::SecretChat) {
-      auto peer_user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      if (!peer_user_id.is_valid() || sender_user_id != peer_user_id) {
-        return Status::Error(400, "Wrong sender user");
-      }
-    }
-  }
-
-  auto input_reply_to = create_message_input_reply_to(d, MessageId(), std::move(reply_to), false);
-
-  MessageId message_id = get_next_local_message_id(d);
-
-  auto message = make_unique<Message>();
-  auto *m = message.get();
-  m->message_id = message_id;
-  if (is_channel_post) {
-    // sender of the post can be hidden
-    if (td_->chat_manager_->get_channel_sign_messages(dialog_id.get_channel_id())) {
-      auto real_sender_user_id = sender_user_id.is_valid() ? sender_user_id : my_id;
-      m->author_signature = m->sender_dialog_id == dialog_id || m->sender_dialog_id == DialogId()
-                                ? td_->user_manager_->get_user_title(real_sender_user_id)
-                                : td_->dialog_manager_->get_dialog_title(m->sender_dialog_id);
-    }
-  }
-  m->sender_user_id = sender_user_id;
-  m->sender_dialog_id = sender_dialog_id;
-  m->date = G()->unix_time();
-  m->replied_message_info = RepliedMessageInfo(td_, input_reply_to);
-  m->reply_to_story_full_id = input_reply_to.get_story_full_id();
-  if (!message_id.is_scheduled()) {
-    auto reply_to_message_id = input_reply_to.get_same_chat_reply_to_message_id();
-    const Message *reply_m = get_message(d, reply_to_message_id);
-    if (reply_m != nullptr) {
-      m->top_thread_message_id = reply_m->top_thread_message_id;
-      if (m->top_thread_message_id.is_valid()) {
-        m->is_topic_message = reply_m->is_topic_message;
-      }
-    }
-  }
-  m->is_channel_post = is_channel_post;
-  m->is_outgoing = dialog_id != DialogId(my_id) && sender_user_id == my_id;
-  m->disable_notification = disable_notification;
-  m->from_background = false;
-  m->update_stickersets_order = false;
-  m->view_count = 0;
-  m->forward_count = 0;
-  if (m->sender_user_id == my_id && dialog_type == DialogType::Channel && !is_channel_post) {
-    m->sender_boost_count = td_->chat_manager_->get_channel_my_boost_count(dialog_id.get_channel_id());
-  }
-  m->content = std::move(message_content.content);
-  m->invert_media = message_content.invert_media;
-  m->disable_web_page_preview = message_content.disable_web_page_preview;
-  m->clear_draft = message_content.clear_draft;
-  if (dialog_type == DialogType::SecretChat) {
-    if (!is_service_message_content(m->content->get_type())) {
-      m->ttl = MessageSelfDestructType(td_->user_manager_->get_secret_chat_ttl(dialog_id.get_secret_chat_id()), false);
-    }
-  } else if (message_content.ttl.is_valid()) {
-    m->ttl = message_content.ttl;
-  }
-  m->is_content_secret = m->ttl.is_secret_message_content(m->content->get_type());
-  m->send_emoji = std::move(message_content.emoji);
-  if (dialog_id == DialogId(my_id)) {
-    m->saved_messages_topic_id = SavedMessagesTopicId(dialog_id, m->forward_info.get(), DialogId());
-  }
-
-  bool need_update = true;
-  bool need_update_dialog_pos = false;
-  auto result = add_message_to_dialog(d, std::move(message), false, true, &need_update, &need_update_dialog_pos,
-                                      "add local message");
-  LOG_CHECK(result != nullptr) << message_id << " " << debug_add_message_to_dialog_fail_reason_;
-  register_new_local_message_id(d, result);
-
-  if (is_message_auto_read(dialog_id, result->is_outgoing)) {
-    if (result->is_outgoing) {
-      read_history_outbox(d, message_id);
-    } else {
-      read_history_inbox(d, message_id, 0, "add_local_message");
-    }
-  }
-
-  clear_dialog_draft_by_sent_message(d, result, !need_update_dialog_pos);
-
-  send_update_new_message(d, result);
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, "add_local_message");
-  }
-
-  return message_id;
-}
-
-bool MessagesManager::on_update_message_id(int64 random_id, MessageId new_message_id, const char *source) {
-  if (!new_message_id.is_valid() && !new_message_id.is_valid_scheduled()) {
-    LOG(ERROR) << "Receive " << new_message_id << " in updateMessageID with random_id " << random_id << " from "
-               << source;
-    return false;
-  }
-  CHECK(new_message_id.is_any_server());
-
-  auto it = being_sent_messages_.find(random_id);
-  if (it == being_sent_messages_.end()) {
-    // update about a new message sent from other device or a service message
-    LOG(INFO) << "Receive not sent outgoing " << new_message_id << " with random_id = " << random_id;
-    return true;
-  }
-
-  auto dialog_id = it->second.get_dialog_id();
-  auto old_message_id = it->second.get_message_id();
-
-  being_sent_messages_.erase(it);
-
-  if (!have_message_force({dialog_id, old_message_id}, "on_update_message_id")) {
-    delete_sent_message_on_server(dialog_id, new_message_id, old_message_id);
-    return true;
-  }
-
-  LOG(INFO) << "Save correspondence from " << new_message_id << " in " << dialog_id << " to " << old_message_id;
-  CHECK(old_message_id.is_yet_unsent());
-  if (new_message_id.is_scheduled()) {
-    update_scheduled_message_ids_[dialog_id][new_message_id.get_scheduled_server_message_id()] = old_message_id;
-  } else {
-    update_message_ids_[MessageFullId(dialog_id, new_message_id)] = old_message_id;
-  }
-  return true;
-}
-
-void MessagesManager::on_update_message_video_published(MessageFullId message_full_id) {
-  Dialog *d = get_dialog_force(message_full_id.get_dialog_id());
-  if (d == nullptr) {
-    return;
-  }
-  auto message_id = message_full_id.get_message_id();
-  if (have_message_force(d, message_id, "on_update_message_video_published")) {
-    return send_update_video_published(message_full_id);
-  }
-  if (is_deleted_message(d, message_id)) {
-    return;
-  }
-  published_video_message_full_ids_.insert(message_full_id);
-}
-
-bool MessagesManager::on_get_message_error(DialogId dialog_id, MessageId message_id, const Status &status,
-                                           const char *source) {
-  if (status.message() == "MSG_ID_INVALID" || status.message() == "MESSAGE_ID_INVALID" ||
-      status.message() == "DATA_INVALID") {
-    get_message_from_server({dialog_id, message_id}, Promise<Unit>(), source);
-    return true;
-  }
-  return td_->dialog_manager_->on_get_dialog_error(dialog_id, status, source);
-}
-
-void MessagesManager::on_dialog_updated(DialogId dialog_id, const char *source) {
-  if (G()->use_message_database()) {
-    LOG(INFO) << "Update " << dialog_id << " from " << source;
-    pending_updated_dialog_timeout_.add_timeout_in(dialog_id.get(), MAX_SAVE_DIALOG_DELAY);
-  }
-}
-
-void MessagesManager::send_update_new_message(const Dialog *d, const Message *m) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  CHECK(d->is_update_new_chat_sent);
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateNewMessage>(get_message_object(d->dialog_id, m, "send_update_new_message")));
-}
-
-NotificationGroupInfo &MessagesManager::get_notification_group_info(Dialog *d, bool from_mentions) {
-  CHECK(d != nullptr);
-  auto notification_info = add_dialog_notification_info(d);
-  return from_mentions ? notification_info->mention_notification_group_
-                       : notification_info->message_notification_group_;
-}
-
-NotificationGroupInfo &MessagesManager::get_notification_group_info(Dialog *d, const Message *m) {
-  return get_notification_group_info(d, is_from_mention_notification_group(m));
-}
-
-NotificationGroupId MessagesManager::get_dialog_notification_group_id(DialogId dialog_id,
-                                                                      NotificationGroupInfo &group_info) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!group_info.is_valid()) {
-    NotificationGroupId next_notification_group_id;
-    do {
-      next_notification_group_id = td_->notification_manager_->get_next_notification_group_id();
-      if (!next_notification_group_id.is_valid()) {
-        return NotificationGroupId();
-      }
-    } while (td_->notification_manager_->have_group_force(next_notification_group_id));
-    group_info = NotificationGroupInfo(next_notification_group_id);
-    VLOG(notifications) << "Assign " << next_notification_group_id << " to " << dialog_id;
-    on_dialog_updated(dialog_id, "get_dialog_notification_group_id");
-
-    notification_group_id_to_dialog_id_.emplace(next_notification_group_id, dialog_id);
-
-    if (running_get_channel_difference(dialog_id) || get_channel_difference_to_log_event_id_.count(dialog_id) != 0) {
-      send_closure_later(G()->notification_manager(), &NotificationManager::before_get_chat_difference,
-                         next_notification_group_id);
-    }
-  }
-  CHECK(group_info.is_valid());
-
-  // notification group must be preloaded to guarantee that there is no race between
-  // get_message_notifications_from_database_force and new notifications added right now
-  td_->notification_manager_->load_group_force(group_info.get_group_id());
-
-  return group_info.get_group_id();
-}
-
-Result<MessagesManager::MessagePushNotificationInfo> MessagesManager::get_message_push_notification_info(
-    DialogId dialog_id, MessageId message_id, int64 random_id, UserId sender_user_id, DialogId sender_dialog_id,
-    int32 date, bool is_from_scheduled, bool contains_mention, bool is_pinned, bool is_from_binlog) {
-  if (!is_from_scheduled && dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    return Status::Error("Ignore notification in chat with self");
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return Status::Error("Ignore notification sent to bot");
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "get_message_push_notification_info");
-  if (d == nullptr) {
-    return Status::Error(406, "Ignore notification in unknown chat");
-  }
-  if (sender_dialog_id.is_valid() && !have_dialog_force(sender_dialog_id, "get_message_push_notification_info")) {
-    return Status::Error(406, "Ignore notification sent by unknown chat");
-  }
-
-  if (is_from_scheduled && dialog_id != td_->dialog_manager_->get_my_dialog_id() &&
-      td_->option_manager_->get_option_boolean("disable_sent_scheduled_message_notifications")) {
-    return Status::Error("Ignore notification about sent scheduled message");
-  }
-
-  bool is_new_pinned =
-      is_pinned && message_id.is_valid() &&
-      (d->notification_info == nullptr || message_id > d->notification_info->max_push_notification_message_id_);
-  CHECK(!message_id.is_scheduled());
-  if (message_id.is_valid()) {
-    if (message_id <= d->last_new_message_id) {
-      return Status::Error("Ignore notification about known message");
-    }
-    if (!is_from_binlog && d->notification_info != nullptr) {
-      if (message_id == d->notification_info->max_push_notification_message_id_) {
-        return Status::Error("Ignore previously added message push notification");
-      }
-      if (message_id < d->notification_info->max_push_notification_message_id_) {
-        return Status::Error("Ignore out of order message push notification");
-      }
-    }
-    if (message_id <= d->last_read_inbox_message_id) {
-      return Status::Error("Ignore notification about read message");
-    }
-    if (message_id <= d->last_clear_history_message_id) {
-      return Status::Error("Ignore notification about message from cleared chat history");
-    }
-    if (is_deleted_message(d, message_id)) {
-      return Status::Error("Ignore notification about deleted message");
-    }
-    if (message_id <= d->max_unavailable_message_id) {
-      return Status::Error("Ignore notification about unavailable message");
-    }
-  }
-  if (random_id != 0) {
-    CHECK(dialog_id.get_type() == DialogType::SecretChat);
-    if (get_message_id_by_random_id(d, random_id, "get_message_push_notification_info").is_valid()) {
-      return Status::Error(406, "Ignore notification about known secret message");
-    }
-  }
-
-  if (is_pinned) {
-    contains_mention = !is_dialog_pinned_message_notifications_disabled(d);
-  } else if (contains_mention && is_dialog_mention_notifications_disabled(d)) {
-    contains_mention = false;
-  }
-  if (dialog_id.get_type() == DialogType::User) {
-    contains_mention = false;
-  }
-
-  DialogId settings_dialog_id = dialog_id;
-  Dialog *settings_dialog = d;
-  if (contains_mention) {
-    auto real_sender_dialog_id = sender_dialog_id.is_valid() ? sender_dialog_id : DialogId(sender_user_id);
-    if (real_sender_dialog_id.is_valid()) {
-      settings_dialog_id = real_sender_dialog_id;
-      settings_dialog = get_dialog_force(settings_dialog_id, "get_message_push_notification_info");
-    }
-  }
-
-  bool have_settings;
-  int32 mute_until;
-  std::tie(have_settings, mute_until) = get_dialog_mute_until(settings_dialog_id, settings_dialog);
-  if (have_settings && mute_until > date) {
-    if (is_new_pinned) {
-      remove_dialog_pinned_message_notification(d, "get_message_push_notification_info");
-    }
-    return Status::Error("Ignore notification in muted chat");
-  }
-
-  if (is_dialog_message_notification_disabled(settings_dialog_id, date)) {
-    if (is_new_pinned) {
-      remove_dialog_pinned_message_notification(d, "get_message_push_notification_info");
-    }
-    return Status::Error("Ignore notification in chat, because notifications are disabled in the chat");
-  }
-
-  auto group_id = get_dialog_notification_group_id(dialog_id, get_notification_group_info(d, contains_mention));
-  if (!group_id.is_valid()) {
-    return Status::Error("Can't assign notification group ID");
-  }
-
-  if (message_id.is_valid()) {
-    auto notification_info = add_dialog_notification_info(d);
-    if (message_id > notification_info->max_push_notification_message_id_) {
-      if (is_new_pinned && contains_mention) {
-        set_dialog_pinned_message_notification(d, message_id, "get_message_push_notification_info");
-      }
-      notification_info->max_push_notification_message_id_ = message_id;
-      on_dialog_updated(dialog_id, "set_max_push_notification_message_id");
-    }
-  }
-
-  MessagePushNotificationInfo result;
-  result.group_id = group_id;
-  result.group_type = contains_mention ? NotificationGroupType::Mentions : NotificationGroupType::Messages;
-  result.settings_dialog_id = settings_dialog_id;
-  return result;
-}
-
-NotificationId MessagesManager::get_next_notification_id(NotificationInfo *notification_info,
-                                                         NotificationGroupId notification_group_id,
-                                                         MessageId message_id) {
-  CHECK(notification_info != nullptr);
-  CHECK(!message_id.is_scheduled());
-  NotificationId notification_id;
-  do {
-    notification_id = td_->notification_manager_->get_next_notification_id();
-    if (!notification_id.is_valid()) {
-      return NotificationId();
-    }
-  } while (notification_info->notification_id_to_message_id_.count(notification_id) != 0 ||
-           notification_info->new_secret_chat_notification_id_ == notification_id ||
-           notification_info->message_notification_group_.is_used_notification_id(notification_id) ||
-           notification_info->mention_notification_group_.is_used_notification_id(notification_id));  // just in case
-  if (message_id.is_valid()) {
-    add_notification_id_to_message_id_correspondence(notification_info, notification_id, message_id);
-  }
-  return notification_id;
-}
-
-NotificationGroupFromDatabase MessagesManager::get_message_notification_group_force(NotificationGroupId group_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(group_id.is_valid());
-  Dialog *d = nullptr;
-  auto it = notification_group_id_to_dialog_id_.find(group_id);
-  if (it != notification_group_id_to_dialog_id_.end()) {
-    d = get_dialog(it->second);
-    CHECK(d != nullptr);
-  } else if (G()->use_message_database()) {
-    auto *dialog_db = G()->td_db()->get_dialog_db_sync();
-    dialog_db->begin_read_transaction().ensure();
-    auto r_value = dialog_db->get_notification_group(group_id);
-    if (r_value.is_ok()) {
-      VLOG(notifications) << "Loaded " << r_value.ok() << " from database by " << group_id;
-      d = get_dialog_force(r_value.ok().dialog_id, "get_message_notification_group_force");
-    } else {
-      LOG_CHECK(r_value.error().message() == "Not found") << r_value.error();
-      VLOG(notifications) << "Failed to load " << group_id << " from database";
-    }
-    dialog_db->commit_transaction().ensure();
-  }
-
-  if (d == nullptr || d->notification_info == nullptr) {
-    return NotificationGroupFromDatabase();
-  }
-  if (!is_dialog_notification_group_id(d, group_id)) {
-    if (d->dialog_id.get_type() == DialogType::SecretChat &&
-        !d->notification_info->message_notification_group_.is_valid() &&
-        !d->notification_info->mention_notification_group_.is_valid()) {
-      // the group was reused, but wasn't deleted from the database, trying to resave it
-      auto &group_info = d->notification_info->message_notification_group_;
-      group_info = NotificationGroupInfo(group_id);
-      group_info.try_reuse();
-      save_dialog_to_database(d->dialog_id);
-      group_info = NotificationGroupInfo();
-    }
-    CHECK(is_dialog_notification_group_id(d, group_id));
-  }
-
-  bool from_mentions = d->notification_info->mention_notification_group_.has_group_id(group_id);
-  auto &group_info = get_notification_group_info(d, from_mentions);
-
-  NotificationGroupFromDatabase result;
-  VLOG(notifications) << "Found " << (from_mentions ? "Mentions " : "Messages ") << group_info.get_group_id() << '/'
-                      << d->dialog_id << " by " << group_id << " with " << d->unread_mention_count
-                      << " unread mentions, " << d->unread_reaction_count << " unread reactions, pinned "
-                      << d->notification_info->pinned_message_notification_message_id_ << ", new secret chat "
-                      << d->notification_info->new_secret_chat_notification_id_ << " and "
-                      << d->server_unread_count + d->local_unread_count << " unread messages";
-  result.dialog_id = d->dialog_id;
-  result.total_count = get_dialog_pending_notification_count(d, from_mentions);
-  auto pending_notification_count = from_mentions ? d->notification_info->pending_new_mention_notifications_.size()
-                                                  : d->notification_info->pending_new_message_notifications_.size();
-  result.total_count -= static_cast<int32>(pending_notification_count);
-  if (result.total_count < 0) {
-    LOG(ERROR) << "Total notification count is " << result.total_count << " in " << d->dialog_id << " with "
-               << pending_notification_count << " pending new notifications";
-    result.total_count = 0;
-  }
-  if (d->notification_info->new_secret_chat_notification_id_.is_valid()) {
-    CHECK(d->dialog_id.get_type() == DialogType::SecretChat);
-    result.type = NotificationGroupType::SecretChat;
-    result.notifications.emplace_back(d->notification_info->new_secret_chat_notification_id_,
-                                      td_->user_manager_->get_secret_chat_date(d->dialog_id.get_secret_chat_id()),
-                                      false, create_new_secret_chat_notification());
-  } else {
-    result.type = from_mentions ? NotificationGroupType::Mentions : NotificationGroupType::Messages;
-    result.notifications = get_message_notifications_from_database_force(
-        d, from_mentions, static_cast<int32>(td_->notification_manager_->get_max_notification_group_size()));
-  }
-
-  int32 last_notification_date = 0;
-  NotificationId last_notification_id;
-  if (!result.notifications.empty()) {
-    last_notification_date = result.notifications[0].date;
-    last_notification_id = result.notifications[0].notification_id;
-  }
-  set_dialog_last_notification(d->dialog_id, group_info, last_notification_date, last_notification_id,
-                               "get_message_notification_group_force");
-
-  std::reverse(result.notifications.begin(), result.notifications.end());
-
-  return result;
-}
-
-bool MessagesManager::get_dialog_show_preview(const Dialog *d) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(d != nullptr);
-  if (d->notification_settings.use_default_show_preview) {
-    auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(d->dialog_id);
-    return td_->notification_settings_manager_->get_scope_show_preview(scope);
-  } else {
-    return d->notification_settings.show_preview;
-  }
-}
-
-bool MessagesManager::is_message_preview_enabled(const Dialog *d, const Message *m, bool from_mentions) {
-  if (!get_dialog_show_preview(d)) {
-    return false;
-  }
-  if (!from_mentions) {
-    return true;
-  }
-  auto sender_dialog_id = get_message_sender(m);
-  if (!sender_dialog_id.is_valid()) {
-    return true;
-  }
-  d = get_dialog_force(sender_dialog_id, "is_message_preview_enabled");
-  if (d == nullptr) {
-    auto scope = td_->dialog_manager_->get_dialog_notification_setting_scope(sender_dialog_id);
-    return td_->notification_settings_manager_->get_scope_show_preview(scope);
-  }
-  return get_dialog_show_preview(d);
-}
-
-bool MessagesManager::is_from_mention_notification_group(const Message *m) {
-  CHECK(m != nullptr);
-  return m->contains_mention && !m->is_mention_notification_disabled;
-}
-
-bool MessagesManager::is_message_notification_active(const Dialog *d, const Message *m) {
-  CHECK(!m->message_id.is_scheduled());
-  if (d->notification_info == nullptr) {
-    if (is_from_mention_notification_group(m)) {
-      return m->contains_unread_mention;
-    } else {
-      return m->message_id > d->last_read_inbox_message_id;
-    }
-  }
-  if (is_from_mention_notification_group(m)) {
-    return !d->notification_info->mention_notification_group_.is_removed_notification(m->notification_id,
-                                                                                      m->message_id) &&
-           (m->contains_unread_mention ||
-            m->message_id == d->notification_info->pinned_message_notification_message_id_);
-  } else {
-    return !d->notification_info->message_notification_group_.is_removed_notification(m->notification_id,
-                                                                                      m->message_id) &&
-           m->message_id > d->last_read_inbox_message_id;
-  }
-}
-
-void MessagesManager::try_add_pinned_message_notification(Dialog *d, vector<Notification> &res,
-                                                          NotificationId max_notification_id, int32 limit) {
-  CHECK(d != nullptr);
-  if (d->notification_info == nullptr) {
-    return;
-  }
-  auto message_id = d->notification_info->pinned_message_notification_message_id_;
-  if (!message_id.is_valid() || message_id > d->last_new_message_id) {
-    CHECK(!message_id.is_scheduled());
-    return;
-  }
-
-  auto m = get_message_force(d, message_id, "try_add_pinned_message_notification");
-  if (m != nullptr &&
-      !d->notification_info->mention_notification_group_.is_removed_notification(m->notification_id, m->message_id) &&
-      m->message_id > d->last_read_inbox_message_id && !is_dialog_pinned_message_notifications_disabled(d)) {
-    if (m->notification_id.get() < max_notification_id.get()) {
-      VLOG(notifications) << "Add " << m->notification_id << " about pinned " << message_id << " in " << d->dialog_id;
-      auto pinned_message_id = get_message_content_pinned_message_id(m->content.get());
-      if (pinned_message_id.is_valid()) {
-        get_message_force(d, pinned_message_id, "try_add_pinned_message_notification 2");  // preload pinned message
-      }
-
-      auto pos = res.size();
-      res.emplace_back(m->notification_id, m->date, m->disable_notification,
-                       create_new_message_notification(message_id, is_message_preview_enabled(d, m, true)));
-      NotificationObjectId object_id(message_id);
-      while (pos > 0 && res[pos - 1].type->get_object_id() < object_id) {
-        std::swap(res[pos - 1], res[pos]);
-        pos--;
-      }
-      if (pos > 0 && res[pos - 1].type->get_object_id() == object_id) {
-        res.erase(res.begin() + pos);  // notification was already there
-      }
-      if (res.size() > static_cast<size_t>(limit)) {
-        res.pop_back();
-        CHECK(res.size() == static_cast<size_t>(limit));
-      }
-    }
-  } else {
-    remove_dialog_pinned_message_notification(d, "try_add_pinned_message_notification");
-  }
-}
-
-vector<Notification> MessagesManager::get_message_notifications_from_database_force(Dialog *d, bool from_mentions,
-                                                                                    int32 limit) {
-  CHECK(d != nullptr);
-  if (!G()->use_message_database() || td_->auth_manager_->is_bot()) {
-    return {};
-  }
-
-  auto &group_info = get_notification_group_info(d, from_mentions);
-  auto from_notification_id = NotificationId::max();
-  auto from_message_id = MessageId::max();
-  vector<Notification> res;
-  if (!from_mentions && from_message_id <= d->last_read_inbox_message_id) {
-    return res;
-  }
-  while (true) {
-    auto messages = do_get_message_notifications_from_database_force(d, from_mentions, from_notification_id,
-                                                                     from_message_id, limit);
-    if (messages.empty()) {
-      break;
-    }
-
-    bool is_found = false;
-    VLOG(notifications) << "Loaded " << messages.size() << (from_mentions ? " mention" : "")
-                        << " messages with notifications from database in " << group_info.get_group_id() << '/'
-                        << d->dialog_id;
-    for (auto &message : messages) {
-      auto m = on_get_message_from_database(d, message, false, "get_message_notifications_from_database_force");
-      if (m == nullptr) {
-        VLOG(notifications) << "Receive from database a broken message";
-        continue;
-      }
-
-      auto notification_id = m->notification_id.is_valid() ? m->notification_id : m->removed_notification_id;
-      if (!notification_id.is_valid()) {
-        if (from_mentions) {
-          VLOG(notifications) << "Receive " << m->message_id << " with unread mention, but without notification";
-          is_found = false;
-        } else {
-          LOG(ERROR) << "Can't find notification identifier for " << m->message_id << " in " << d->dialog_id
-                     << " with from_mentions = " << from_mentions;
-        }
-        continue;
-      }
-      CHECK(m->message_id.is_valid());
-
-      bool is_correct = true;
-      if (notification_id.get() >= from_notification_id.get()) {
-        // possible if two messages have the same notification_id
-        LOG(ERROR) << "Have nonmonotonic notification identifiers: " << d->dialog_id << " " << m->message_id << " "
-                   << notification_id << " " << from_message_id << " " << from_notification_id;
-        is_correct = false;
-      } else {
-        from_notification_id = notification_id;
-        is_found = true;
-      }
-      if (m->message_id >= from_message_id) {
-        LOG(ERROR) << "Have nonmonotonic message identifiers: " << d->dialog_id << " " << m->message_id << " "
-                   << notification_id << " " << from_message_id << " " << from_notification_id;
-        is_correct = false;
-      } else {
-        from_message_id = m->message_id;
-        is_found = true;
-      }
-
-      if (group_info.is_removed_notification(notification_id, m->message_id) ||
-          (!from_mentions && m->message_id <= d->last_read_inbox_message_id)) {
-        // if message still has notification_id, but it was removed,
-        // then there will be no more messages with active notifications
-        is_found = false;
-        break;
-      }
-
-      if (!m->notification_id.is_valid()) {
-        // notification_id can be empty if it is deleted in memory, but not in the database
-        VLOG(notifications) << "Receive from database " << m->message_id << " with removed "
-                            << m->removed_notification_id;
-        continue;
-      }
-
-      if (is_from_mention_notification_group(m) != from_mentions) {
-        VLOG(notifications) << "Receive from database " << m->message_id << " with " << m->notification_id
-                            << " from another group";
-        continue;
-      }
-
-      if (!is_message_notification_active(d, m)) {
-        CHECK(from_mentions);
-        CHECK(!m->contains_unread_mention);
-        // skip read mentions
-        continue;
-      }
-
-      if (is_correct) {
-        // skip mention messages returned among unread messages
-        res.emplace_back(
-            m->notification_id, m->date, m->disable_notification,
-            create_new_message_notification(m->message_id, is_message_preview_enabled(d, m, from_mentions)));
-      } else {
-        remove_message_notification_id(d, m, true, false);
-        on_message_changed(d, m, false, "get_message_notifications_from_database_force");
-      }
-    }
-    if (!res.empty() || !is_found) {
-      break;
-    }
-  }
-  if (from_mentions) {
-    try_add_pinned_message_notification(d, res, NotificationId::max(), limit);
-  }
-  return res;
-}
-
-vector<MessageDbDialogMessage> MessagesManager::do_get_message_notifications_from_database_force(
-    Dialog *d, bool from_mentions, NotificationId from_notification_id, MessageId from_message_id, int32 limit) {
-  CHECK(G()->use_message_database());
-  CHECK(!from_message_id.is_scheduled());
-
-  auto *db = G()->td_db()->get_message_db_sync();
-  if (!from_mentions) {
-    CHECK(from_message_id > d->last_read_inbox_message_id);
-    VLOG(notifications) << "Trying to load " << limit << " messages with notifications in " << d->dialog_id << " from "
-                        << from_notification_id;
-    return db->get_messages_from_notification_id(d->dialog_id, from_notification_id, limit);
-  } else {
-    VLOG(notifications) << "Trying to load " << limit << " messages with unread mentions in " << d->dialog_id
-                        << " from " << from_message_id;
-
-    // ignore first_db_message_id, notifications can be nonconsecutive
-    MessageDbMessagesQuery db_query;
-    db_query.dialog_id = d->dialog_id;
-    db_query.filter = MessageSearchFilter::UnreadMention;
-    db_query.from_message_id = from_message_id;
-    db_query.offset = 0;
-    db_query.limit = limit;
-    return db->get_messages(db_query);
-  }
-}
-
-vector<NotificationGroupKey> MessagesManager::get_message_notification_group_keys_from_database(
-    NotificationGroupKey from_group_key, int32 limit) {
-  if (!G()->use_message_database()) {
-    return {};
-  }
-
-  VLOG(notifications) << "Trying to load " << limit << " message notification groups from database from "
-                      << from_group_key;
-
-  auto *dialog_db = G()->td_db()->get_dialog_db_sync();
-  dialog_db->begin_read_transaction().ensure();
-  auto group_keys = dialog_db->get_notification_groups_by_last_notification_date(from_group_key, limit);
-  vector<NotificationGroupKey> result;
-  for (auto &group_key : group_keys) {
-    CHECK(group_key.group_id.is_valid());
-    CHECK(group_key.dialog_id.is_valid());
-    const Dialog *d = get_dialog_force(group_key.dialog_id, "get_message_notification_group_keys_from_database");
-    if (!is_dialog_notification_group_id(d, group_key.group_id)) {
-      continue;
-    }
-
-    CHECK(d->dialog_id == group_key.dialog_id);
-    CHECK(notification_group_id_to_dialog_id_[group_key.group_id] == d->dialog_id);
-
-    VLOG(notifications) << "Loaded " << group_key << " from database";
-    result.push_back(group_key);
-  }
-  dialog_db->commit_transaction().ensure();
-  return result;
-}
-
-void MessagesManager::get_message_notifications_from_database(DialogId dialog_id, NotificationGroupId group_id,
-                                                              NotificationId from_notification_id,
-                                                              MessageId from_message_id, int32 limit,
-                                                              Promise<vector<Notification>> promise) {
-  if (!G()->use_message_database()) {
-    return promise.set_error(Status::Error(500, "There is no message database"));
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(500, "Bots have no notifications"));
-  }
-
-  CHECK(dialog_id.is_valid());
-  CHECK(group_id.is_valid());
-  CHECK(!from_message_id.is_scheduled());
-  CHECK(limit > 0);
-
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (!is_dialog_notification_group_id(d, group_id)) {
-    return promise.set_value(vector<Notification>());
-  }
-
-  VLOG(notifications) << "Get " << limit << " message notifications from database in " << group_id << " from "
-                      << dialog_id << " from " << from_notification_id << "/" << from_message_id;
-  bool from_mentions = d->notification_info->mention_notification_group_.has_group_id(group_id);
-  if (d->notification_info->new_secret_chat_notification_id_.is_valid()) {
-    CHECK(dialog_id.get_type() == DialogType::SecretChat);
-    vector<Notification> notifications;
-    if (!from_mentions && d->notification_info->new_secret_chat_notification_id_.get() < from_notification_id.get()) {
-      auto date = td_->user_manager_->get_secret_chat_date(dialog_id.get_secret_chat_id());
-      if (date <= 0) {
-        remove_new_secret_chat_notification(d, true);
-      } else {
-        notifications.emplace_back(d->notification_info->new_secret_chat_notification_id_, date, false,
-                                   create_new_secret_chat_notification());
-      }
-    }
-    return promise.set_value(std::move(notifications));
-  }
-
-  do_get_message_notifications_from_database(d, from_mentions, from_notification_id, from_notification_id,
-                                             from_message_id, limit, std::move(promise));
-}
-
-void MessagesManager::do_get_message_notifications_from_database(Dialog *d, bool from_mentions,
-                                                                 NotificationId initial_from_notification_id,
-                                                                 NotificationId from_notification_id,
-                                                                 MessageId from_message_id, int32 limit,
-                                                                 Promise<vector<Notification>> promise) {
-  CHECK(G()->use_message_database());
-  CHECK(!from_message_id.is_scheduled());
-
-  auto &group_info = get_notification_group_info(d, from_mentions);
-  if (!group_info.is_valid() || group_info.is_removed_notification(from_notification_id, from_message_id) ||
-      (!from_mentions && from_message_id <= d->last_read_inbox_message_id)) {
-    return promise.set_value(vector<Notification>());
-  }
-
-  auto dialog_id = d->dialog_id;
-  auto new_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, from_mentions, initial_from_notification_id, limit,
-                              promise = std::move(promise)](Result<vector<MessageDbDialogMessage>> result) mutable {
-        send_closure(actor_id, &MessagesManager::on_get_message_notifications_from_database, dialog_id, from_mentions,
-                     initial_from_notification_id, limit, std::move(result), std::move(promise));
-      });
-
-  auto *db = G()->td_db()->get_message_db_async();
-  if (!from_mentions) {
-    VLOG(notifications) << "Trying to load " << limit << " messages with notifications in " << group_info.get_group_id()
-                        << '/' << dialog_id << " from " << from_notification_id;
-    return db->get_messages_from_notification_id(d->dialog_id, from_notification_id, limit, std::move(new_promise));
-  } else {
-    VLOG(notifications) << "Trying to load " << limit << " messages with unread mentions in "
-                        << group_info.get_group_id() << '/' << dialog_id << " from " << from_message_id;
-
-    // ignore first_db_message_id, notifications can be nonconsecutive
-    MessageDbMessagesQuery db_query;
-    db_query.dialog_id = dialog_id;
-    db_query.filter = MessageSearchFilter::UnreadMention;
-    db_query.from_message_id = from_message_id;
-    db_query.offset = 0;
-    db_query.limit = limit;
-    return db->get_messages(db_query, std::move(new_promise));
-  }
-}
-
-void MessagesManager::on_get_message_notifications_from_database(DialogId dialog_id, bool from_mentions,
-                                                                 NotificationId initial_from_notification_id,
-                                                                 int32 limit,
-                                                                 Result<vector<MessageDbDialogMessage>> result,
-                                                                 Promise<vector<Notification>> promise) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  auto &group_info = get_notification_group_info(d, from_mentions);
-  if (!group_info.is_valid()) {
-    return promise.set_error(Status::Error("Notification group was deleted"));
-  }
-
-  auto messages = result.move_as_ok();
-  vector<Notification> res;
-  res.reserve(messages.size());
-  NotificationId from_notification_id;
-  MessageId from_message_id;
-  VLOG(notifications) << "Loaded " << messages.size() << " messages with notifications in " << group_info.get_group_id()
-                      << '/' << dialog_id << " from database";
-  for (auto &message : messages) {
-    auto m = on_get_message_from_database(d, message, false, "on_get_message_notifications_from_database");
-    if (m == nullptr) {
-      VLOG(notifications) << "Receive from database a broken message";
-      continue;
-    }
-
-    auto notification_id = m->notification_id.is_valid() ? m->notification_id : m->removed_notification_id;
-    if (!notification_id.is_valid()) {
-      if (from_mentions) {
-        VLOG(notifications) << "Receive " << m->message_id << " with unread mention, but without notification";
-        from_notification_id = NotificationId();  // stop requesting database
-      } else {
-        LOG(ERROR) << "Can't find notification identifier for " << m->message_id << " in " << d->dialog_id
-                   << " with from_mentions = " << from_mentions;
-      }
-      continue;
-    }
-    CHECK(m->message_id.is_valid());
-
-    bool is_correct = true;
-    if (from_notification_id.is_valid() && notification_id.get() >= from_notification_id.get()) {
-      LOG(ERROR) << "Receive " << m->message_id << "/" << notification_id << " after " << from_message_id << "/"
-                 << from_notification_id;
-      is_correct = false;
-    } else {
-      from_notification_id = notification_id;
-    }
-    if (from_message_id.is_valid() && m->message_id >= from_message_id) {
-      LOG(ERROR) << "Receive " << m->message_id << "/" << notification_id << " after " << from_message_id << "/"
-                 << from_notification_id;
-      is_correct = false;
-    } else {
-      from_message_id = m->message_id;
-    }
-
-    if (group_info.is_removed_notification(notification_id, m->message_id) ||
-        (!from_mentions && m->message_id <= d->last_read_inbox_message_id)) {
-      // if message still has notification_id, but it was removed via max_removed_notification_id,
-      // or max_removed_message_id, or last_read_inbox_message_id,
-      // then there will be no more messages with active notifications
-      from_notification_id = NotificationId();  // stop requesting database
-      break;
-    }
-
-    if (!m->notification_id.is_valid()) {
-      // notification_id can be empty if it is deleted in memory, but not in the database
-      VLOG(notifications) << "Receive from database " << m->message_id << " with removed "
-                          << m->removed_notification_id;
-      continue;
-    }
-
-    if (is_from_mention_notification_group(m) != from_mentions) {
-      VLOG(notifications) << "Receive from database " << m->message_id << " with " << m->notification_id
-                          << " from another category";
-      continue;
-    }
-
-    if (!is_message_notification_active(d, m)) {
-      CHECK(from_mentions);
-      CHECK(!m->contains_unread_mention);
-      // skip read mentions
-      continue;
-    }
-
-    if (is_correct) {
-      // skip mention messages returned among unread messages
-      CHECK(m->date > 0);
-      res.emplace_back(m->notification_id, m->date, m->disable_notification,
-                       create_new_message_notification(m->message_id, is_message_preview_enabled(d, m, from_mentions)));
-    } else {
-      remove_message_notification_id(d, m, true, false);
-      on_message_changed(d, m, false, "on_get_message_notifications_from_database");
-    }
-  }
-  if (!res.empty() || !from_notification_id.is_valid() || static_cast<size_t>(limit) > messages.size()) {
-    if (from_mentions) {
-      try_add_pinned_message_notification(d, res, initial_from_notification_id, limit);
-    }
-
-    std::reverse(res.begin(), res.end());
-    return promise.set_value(std::move(res));
-  }
-
-  // try again from adjusted from_notification_id and from_message_id
-  do_get_message_notifications_from_database(d, from_mentions, initial_from_notification_id, from_notification_id,
-                                             from_message_id, limit, std::move(promise));
-}
-
-void MessagesManager::remove_message_notification(DialogId dialog_id, NotificationGroupId group_id,
-                                                  NotificationId notification_id) {
-  Dialog *d = get_dialog_force(dialog_id, "remove_message_notification");
-  if (!is_dialog_notification_group_id(d, group_id)) {
-    LOG(ERROR) << "There is no " << group_id << " in " << dialog_id;
-    return;
-  }
-  if (notification_id == NotificationId::max() || !notification_id.is_valid()) {
-    return;  // there can be no notification with this ID
-  }
-
-  bool from_mentions = d->notification_info->mention_notification_group_.has_group_id(group_id);
-  if (d->notification_info->new_secret_chat_notification_id_.is_valid()) {
-    if (!from_mentions && d->notification_info->new_secret_chat_notification_id_ == notification_id) {
-      return remove_new_secret_chat_notification(d, false);
-    }
-    return;
-  }
-
-  auto it = d->notification_info->notification_id_to_message_id_.find(notification_id);
-  if (it != d->notification_info->notification_id_to_message_id_.end()) {
-    auto m = get_message(d, it->second);
-    CHECK(m != nullptr);
-    CHECK(m->notification_id == notification_id);
-    CHECK(!m->message_id.is_scheduled());
-    if (is_from_mention_notification_group(m) == from_mentions && is_message_notification_active(d, m)) {
-      remove_message_notification_id(d, m, false, false);
-    }
-    return;
-  }
-
-  if (G()->use_message_database()) {
-    G()->td_db()->get_message_db_async()->get_messages_from_notification_id(
-        dialog_id, NotificationId(notification_id.get() + 1), 1,
-        PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, from_mentions,
-                                notification_id](vector<MessageDbDialogMessage> result) {
-          send_closure(actor_id, &MessagesManager::do_remove_message_notification, dialog_id, from_mentions,
-                       notification_id, std::move(result));
-        }));
-  }
-}
-
-void MessagesManager::remove_message_notifications_by_message_ids(DialogId dialog_id,
-                                                                  const vector<MessageId> &message_ids) {
-  VLOG(notifications) << "Trying to remove notification about " << message_ids << " in " << dialog_id;
-  Dialog *d = get_dialog_force(dialog_id, "remove_message_notifications_by_message_ids");
-  if (d == nullptr || d->notification_info == nullptr) {
-    return;
-  }
-
-  bool need_update_dialog_pos = false;
-  vector<int64> deleted_message_ids;
-  for (auto message_id : message_ids) {
-    CHECK(!message_id.is_scheduled());
-    // can't remove just notification_id, because total_count will stay wrong after restart
-    // delete whole message
-    auto message =
-        delete_message(d, message_id, true, &need_update_dialog_pos, "remove_message_notifications_by_message_ids");
-    if (message == nullptr) {
-      LOG(INFO) << "Can't delete " << message_id << " because it is not found";
-      // call synchronously to remove them before ProcessPush returns
-      td_->notification_manager_->remove_temporary_notification_by_object_id(
-          d->notification_info->message_notification_group_.get_group_id(), message_id, true,
-          "remove_message_notifications_by_message_ids");
-      td_->notification_manager_->remove_temporary_notification_by_object_id(
-          d->notification_info->mention_notification_group_.get_group_id(), message_id, true,
-          "remove_message_notifications_by_message_ids");
-      continue;
-    }
-    deleted_message_ids.push_back(message->message_id.get());
-  }
-
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, "remove_message_notifications_by_message_ids");
-  }
-  send_update_delete_messages(dialog_id, std::move(deleted_message_ids), true);
-}
-
-void MessagesManager::do_remove_message_notification(DialogId dialog_id, bool from_mentions,
-                                                     NotificationId notification_id,
-                                                     vector<MessageDbDialogMessage> result) {
-  if (G()->close_flag() || result.empty()) {
-    return;
-  }
-  CHECK(result.size() == 1);
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  auto m = on_get_message_from_database(d, result[0], false, "do_remove_message_notification");
-  if (m != nullptr && m->notification_id == notification_id && is_from_mention_notification_group(m) == from_mentions &&
-      is_message_notification_active(d, m)) {
-    remove_message_notification_id(d, m, false, false);
-  }
-}
-
-void MessagesManager::remove_message_notifications(DialogId dialog_id, NotificationGroupId group_id,
-                                                   NotificationId max_notification_id, MessageId max_message_id) {
-  Dialog *d = get_dialog_force(dialog_id, "remove_message_notifications");
-  if (!is_dialog_notification_group_id(d, group_id)) {
-    LOG(ERROR) << "There is no " << group_id << " in " << dialog_id;
-    return;
-  }
-  if (!max_notification_id.is_valid()) {
-    return;
-  }
-  CHECK(!max_message_id.is_scheduled());
-
-  bool from_mentions = d->notification_info->mention_notification_group_.has_group_id(group_id);
-  if (d->notification_info->new_secret_chat_notification_id_.is_valid()) {
-    if (!from_mentions && d->notification_info->new_secret_chat_notification_id_.get() <= max_notification_id.get()) {
-      return remove_new_secret_chat_notification(d, false);
-    }
-    return;
-  }
-  auto &group_info = get_notification_group_info(d, from_mentions);
-  if (group_info.set_max_removed_notification_id(max_notification_id, max_message_id.get_prev_server_message_id(),
-                                                 "remove_message_notifications")) {
-    on_dialog_updated(dialog_id, "remove_message_notifications");
-  }
-}
-
-int32 MessagesManager::get_dialog_pending_notification_count(const Dialog *d, bool from_mentions) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(d != nullptr);
-  auto notification_info = d->notification_info.get();
-  CHECK(notification_info != nullptr);
-  if (from_mentions) {
-    bool has_pinned_message = notification_info->pinned_message_notification_message_id_.is_valid() &&
-                              notification_info->pinned_message_notification_message_id_ <= d->last_new_message_id;
-    return d->unread_mention_count + static_cast<int32>(has_pinned_message);
-  } else {
-    if (notification_info->new_secret_chat_notification_id_.is_valid()) {
-      return 1;
-    }
-    if (is_dialog_muted(d)) {
-      return narrow_cast<int32>(notification_info->pending_new_message_notifications_.size());  // usually 0
-    }
-
-    return d->server_unread_count + d->local_unread_count;
-  }
-}
-
-void MessagesManager::update_dialog_mention_notification_count(const Dialog *d) {
-  CHECK(d != nullptr);
-  if (td_->auth_manager_->is_bot() || d->notification_info == nullptr ||
-      !d->notification_info->mention_notification_group_.is_valid()) {
-    return;
-  }
-  auto total_count = get_dialog_pending_notification_count(d, true) -
-                     static_cast<int32>(d->notification_info->pending_new_mention_notifications_.size());
-  if (total_count < 0) {
-    LOG(ERROR) << "Total mention notification count is " << total_count << " in " << d->dialog_id << " with "
-               << d->notification_info->pending_new_mention_notifications_ << " pending new mention notifications";
-    total_count = 0;
-  }
-  send_closure_later(G()->notification_manager(), &NotificationManager::set_notification_total_count,
-                     d->notification_info->mention_notification_group_.get_group_id(), total_count);
-}
-
-bool MessagesManager::is_message_notification_disabled(const Dialog *d, const Message *m) const {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-
-  if (!has_incoming_notification(d->dialog_id, m) || td_->auth_manager_->is_bot()) {
-    return true;
-  }
-  if (m->is_from_scheduled && d->dialog_id != td_->dialog_manager_->get_my_dialog_id() &&
-      td_->option_manager_->get_option_boolean("disable_sent_scheduled_message_notifications")) {
-    return true;
-  }
-  if (m->forward_info != nullptr && m->forward_info->is_imported()) {
-    return true;
-  }
-
-  switch (m->content->get_type()) {
-    case MessageContentType::ChatDeleteHistory:
-    case MessageContentType::ChatMigrateTo:
-    case MessageContentType::Unsupported:
-    case MessageContentType::ExpiredPhoto:
-    case MessageContentType::ExpiredVideo:
-    case MessageContentType::ExpiredVideoNote:
-    case MessageContentType::ExpiredVoiceNote:
-    case MessageContentType::PassportDataSent:
-    case MessageContentType::PassportDataReceived:
-    case MessageContentType::WebViewDataSent:
-    case MessageContentType::WebViewDataReceived:
-    case MessageContentType::GiveawayLaunch:
-      VLOG(notifications) << "Disable notification for " << m->message_id << " in " << d->dialog_id
-                          << " with content of type " << m->content->get_type();
-      return true;
-    case MessageContentType::ContactRegistered:
-      if (m->disable_notification) {
-        return true;
-      }
-      break;
-    default:
-      break;
-  }
-
-  return is_dialog_message_notification_disabled(d->dialog_id, m->date);
-}
-
-bool MessagesManager::is_dialog_message_notification_disabled(DialogId dialog_id, int32 message_date) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      break;
-    case DialogType::Chat:
-      if (!td_->chat_manager_->get_chat_is_active(dialog_id.get_chat_id())) {
-        return true;
-      }
-      break;
-    case DialogType::Channel:
-      if (!td_->chat_manager_->get_channel_status(dialog_id.get_channel_id()).is_member() ||
-          message_date < td_->chat_manager_->get_channel_date(dialog_id.get_channel_id())) {
-        return true;
-      }
-      break;
-    case DialogType::SecretChat:
-      if (td_->user_manager_->get_secret_chat_state(dialog_id.get_secret_chat_id()) == SecretChatState::Closed) {
-        return true;
-      }
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  if (message_date < authorization_date_) {
-    return true;
-  }
-
-  return false;
-}
-
-bool MessagesManager::may_need_message_notification(const Dialog *d, const Message *m) const {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  CHECK(m->message_id.is_valid());
-
-  if (is_message_notification_disabled(d, m)) {
-    return false;
-  }
-
-  if (is_from_mention_notification_group(m)) {
-    return true;
-  }
-
-  bool have_settings;
-  int32 mute_until;
-  std::tie(have_settings, mute_until) = get_dialog_mute_until(d->dialog_id, d);
-  return !have_settings || mute_until <= m->date;
-}
-
-bool MessagesManager::add_new_message_notification(Dialog *d, Message *m, bool force) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  CHECK(m->message_id.is_valid());
-
-  if (!force && d->notification_info != nullptr) {
-    if (d->notification_info->message_notification_group_.is_valid()) {
-      send_closure_later(G()->notification_manager(), &NotificationManager::remove_temporary_notifications,
-                         d->notification_info->message_notification_group_.get_group_id(),
-                         "add_new_message_notification 1");
-    }
-    if (d->notification_info->mention_notification_group_.is_valid()) {
-      send_closure_later(G()->notification_manager(), &NotificationManager::remove_temporary_notifications,
-                         d->notification_info->mention_notification_group_.get_group_id(),
-                         "add_new_message_notification 2");
-    }
-  }
-
-  CHECK(!m->notification_id.is_valid());
-  if (is_message_notification_disabled(d, m)) {
-    return false;
-  }
-
-  auto from_mentions = is_from_mention_notification_group(m);
-  bool is_pinned = m->content->get_type() == MessageContentType::PinMessage;
-  bool is_active =
-      from_mentions ? m->contains_unread_mention || is_pinned : m->message_id > d->last_read_inbox_message_id;
-  if (is_active) {
-    auto &group_info = get_notification_group_info(d, from_mentions);
-    if (group_info.is_removed_object_id(m->message_id)) {
-      is_active = false;
-    }
-  }
-  if (!is_active) {
-    VLOG(notifications) << "Disable inactive notification for " << m->message_id << " in " << d->dialog_id;
-    if (is_pinned && from_mentions) {
-      remove_dialog_pinned_message_notification(d, "add_new_message_notification");
-    }
-    return false;
-  }
-
-  VLOG(notifications) << "Trying to " << (force ? "forcely " : "") << "add new message notification for "
-                      << m->message_id << " in " << d->dialog_id
-                      << (m->disable_notification ? " silently" : " with sound");
-
-  DialogId settings_dialog_id = d->dialog_id;
-  Dialog *settings_dialog = d;
-  if (is_from_mention_notification_group(m)) {
-    // have a mention, so use notification settings from the dialog with the sender
-    auto sender_dialog_id = get_message_sender(m);
-    if (sender_dialog_id.is_valid()) {
-      settings_dialog_id = sender_dialog_id;
-      settings_dialog = get_dialog_force(settings_dialog_id, "add_new_message_notification");
-    }
-  }
-
-  bool have_settings;
-  int32 mute_until;
-  std::tie(have_settings, mute_until) = get_dialog_mute_until(settings_dialog_id, settings_dialog);
-  if (mute_until > m->date && (have_settings || force)) {
-    VLOG(notifications) << "Disable notification, because " << settings_dialog_id << " is muted";
-    if (is_pinned && from_mentions) {
-      remove_dialog_pinned_message_notification(d, "add_new_message_notification");
-    }
-    return false;
-  }
-
-  MessageId missing_pinned_message_id;
-  if (is_pinned) {
-    auto message_id = get_message_content_pinned_message_id(m->content.get());
-    if (message_id.is_valid() &&
-        !have_message_force(d, message_id,
-                            force ? "add_new_message_notification force" : "add_new_message_notification not force")) {
-      missing_pinned_message_id = message_id;
-    }
-  }
-
-  auto notification_info = add_dialog_notification_info(d);
-  auto &pending_notifications = from_mentions ? notification_info->pending_new_mention_notifications_
-                                              : notification_info->pending_new_message_notifications_;
-  if (!force && (!have_settings || !pending_notifications.empty() || missing_pinned_message_id.is_valid())) {
-    VLOG(notifications) << "Delay new message notification for " << m->message_id << " in " << d->dialog_id << " with "
-                        << pending_notifications.size() << " already waiting messages";
-    if (pending_notifications.empty()) {
-      VLOG(notifications) << "Create FlushPendingNewMessageNotificationsSleepActor for " << d->dialog_id;
-      create_actor<SleepActor>(
-          "FlushPendingNewMessageNotificationsSleepActor", 5.0,
-          PromiseCreator::lambda([actor_id = actor_id(this), dialog_id = d->dialog_id, from_mentions](Unit) {
-            VLOG(notifications) << "Pending notifications timeout in " << dialog_id << " has expired";
-            send_closure(actor_id, &MessagesManager::flush_pending_new_message_notifications, dialog_id, from_mentions,
-                         DialogId());
-          }))
-          .release();
-    }
-    auto last_settings_dialog_id = (pending_notifications.empty() ? DialogId() : pending_notifications.back().first);
-    pending_notifications.emplace_back((have_settings ? DialogId() : settings_dialog_id), m->message_id);
-    if (!have_settings && last_settings_dialog_id != settings_dialog_id) {
-      VLOG(notifications) << "Fetch notification settings for " << settings_dialog_id;
-      auto promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id = d->dialog_id, from_mentions,
-                                             settings_dialog_id](Result<Unit> result) {
-        send_closure(actor_id, &MessagesManager::flush_pending_new_message_notifications, dialog_id, from_mentions,
-                     settings_dialog_id);
-      });
-      reload_dialog_notification_settings(settings_dialog_id, std::move(promise), "add_new_message_notification");
-    }
-    if (missing_pinned_message_id.is_valid()) {
-      VLOG(notifications) << "Fetch pinned " << missing_pinned_message_id;
-      auto promise = PromiseCreator::lambda(
-          [actor_id = actor_id(this), dialog_id = d->dialog_id, from_mentions](Result<Unit> result) {
-            send_closure(actor_id, &MessagesManager::flush_pending_new_message_notifications, dialog_id, from_mentions,
-                         dialog_id);
-          });
-      get_message_from_server({d->dialog_id, missing_pinned_message_id}, std::move(promise),
-                              "add_new_message_notification");
-    }
-    return false;
-  }
-
-  LOG_IF(WARNING, !have_settings) << "Have no notification settings for " << settings_dialog_id
-                                  << ", but forced to send notification about " << m->message_id << " in "
-                                  << d->dialog_id;
-  auto &group_info = get_notification_group_info(d, m);
-  auto notification_group_id = get_dialog_notification_group_id(d->dialog_id, group_info);
-  if (!notification_group_id.is_valid()) {
-    return false;
-  }
-  // if !force, then add_message_to_dialog will add the correspondence
-  m->notification_id =
-      get_next_notification_id(notification_info, notification_group_id, force ? m->message_id : MessageId());
-  if (!m->notification_id.is_valid()) {
-    return false;
-  }
-  set_dialog_last_notification_checked(d->dialog_id, group_info, m->date, m->notification_id,
-                                       "add_new_message_notification 3");
-  if (is_pinned && from_mentions) {
-    set_dialog_pinned_message_notification(d, m->message_id, "add_new_message_notification");
-  }
-  if (!m->notification_id.is_valid()) {
-    // protection from accidental notification_id removal in set_dialog_pinned_message_notification
-    return false;
-  }
-  VLOG(notifications) << "Create " << m->notification_id << " with " << m->message_id << " in "
-                      << group_info.get_group_id() << '/' << d->dialog_id;
-  int32 min_delay_ms = 0;
-  if (need_delay_message_content_notification(m->content.get(), td_->user_manager_->get_my_id())) {
-    min_delay_ms = 3000;  // 3 seconds
-  } else if (td_->online_manager_->is_online() && d->open_count > 0) {
-    min_delay_ms = 1000;  // 1 second
-  }
-  auto ringtone_id = get_dialog_notification_ringtone_id(settings_dialog_id, settings_dialog);
-  bool is_silent = m->disable_notification || m->message_id <= notification_info->max_push_notification_message_id_;
-  send_closure_later(G()->notification_manager(), &NotificationManager::add_notification, notification_group_id,
-                     from_mentions ? NotificationGroupType::Mentions : NotificationGroupType::Messages, d->dialog_id,
-                     m->date, settings_dialog_id, m->disable_notification, is_silent ? 0 : ringtone_id, min_delay_ms,
-                     m->notification_id,
-                     create_new_message_notification(m->message_id, is_message_preview_enabled(d, m, from_mentions)),
-                     "add_new_message_notification");
-  return true;
-}
-
-void MessagesManager::flush_pending_new_message_notifications(DialogId dialog_id, bool from_mentions,
-                                                              DialogId settings_dialog_id) {
-  // flush pending notifications even while closing
-  CHECK(!td_->auth_manager_->is_bot());
-
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  if (d->notification_info == nullptr) {
-    return;
-  }
-  auto &pending_notifications = from_mentions ? d->notification_info->pending_new_mention_notifications_
-                                              : d->notification_info->pending_new_message_notifications_;
-  if (pending_notifications.empty()) {
-    VLOG(notifications) << "Have no pending notifications in " << dialog_id << " to flush";
-    return;
-  }
-  for (auto &it : pending_notifications) {
-    if (it.first == settings_dialog_id || !settings_dialog_id.is_valid()) {
-      it.first = DialogId();
-    }
-  }
-
-  VLOG(notifications) << "Flush pending notifications in " << dialog_id
-                      << " because of received notification settings in " << settings_dialog_id;
-  auto it = pending_notifications.begin();
-  while (it != pending_notifications.end() && it->first == DialogId()) {
-    auto m = get_message(d, it->second);
-    if (m == nullptr) {
-      VLOG(notifications) << "Can't find " << it->second << " in " << dialog_id << " with pending notification";
-    } else if (add_new_message_notification(d, m, true)) {
-      on_message_changed(d, m, false, "flush_pending_new_message_notifications");
-    }
-    ++it;
-  }
-
-  if (it == pending_notifications.end()) {
-    reset_to_empty(pending_notifications);
-  } else {
-    pending_notifications.erase(pending_notifications.begin(), it);
-  }
-}
-
-void MessagesManager::remove_all_dialog_notifications(Dialog *d, bool from_mentions, const char *source) {
-  // removes up to group_info.get_last_notification_id()
-  CHECK(!td_->auth_manager_->is_bot());
-  if (d->notification_info == nullptr) {
-    return;
-  }
-  NotificationGroupInfo &group_info = get_notification_group_info(d, from_mentions);
-  if (group_info.is_valid() && group_info.get_last_notification_id().is_valid()) {
-    auto last_notification_id = group_info.get_last_notification_id();
-    group_info.set_max_removed_notification_id(last_notification_id,
-                                               d->notification_info->max_push_notification_message_id_, source);
-    on_dialog_updated(d->dialog_id, source);
-
-    if (!d->notification_info->pending_new_message_notifications_.empty()) {
-      for (auto &it : d->notification_info->pending_new_message_notifications_) {
-        it.first = DialogId();
-      }
-      flush_pending_new_message_notifications(d->dialog_id, from_mentions, DialogId(UserId(static_cast<int64>(2))));
-    }
-    // remove_message_notifications will be called by NotificationManager
-    send_closure_later(G()->notification_manager(), &NotificationManager::remove_notification_group,
-                       group_info.get_group_id(), last_notification_id, MessageId(), 0, true, Promise<Unit>());
-    d->notification_info->new_secret_chat_notification_id_ = NotificationId();
-    set_dialog_last_notification(d->dialog_id, group_info, 0, NotificationId(), source);  // just in case
-  }
-}
-
-void MessagesManager::remove_message_dialog_notifications(Dialog *d, MessageId max_message_id, bool from_mentions,
-                                                          const char *source) {
-  // removes up to max_message_id
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(!max_message_id.is_scheduled());
-  if (d->notification_info == nullptr) {
-    return;
-  }
-  NotificationGroupInfo &group_info = get_notification_group_info(d, from_mentions);
-  if (!group_info.is_valid()) {
-    return;
-  }
-
-  VLOG(notifications) << "Remove message dialog notifications in " << group_info.get_group_id() << '/' << d->dialog_id
-                      << " up to " << max_message_id << " from " << source;
-
-  if (!d->notification_info->pending_new_message_notifications_.empty()) {
-    for (auto &it : d->notification_info->pending_new_message_notifications_) {
-      if (it.second <= max_message_id) {
-        it.first = DialogId();
-      }
-    }
-    flush_pending_new_message_notifications(d->dialog_id, from_mentions, DialogId(UserId(static_cast<int64>(3))));
-  }
-
-  auto max_notification_message_id = max_message_id;
-  if (d->last_message_id.is_valid() && max_notification_message_id >= d->last_message_id) {
-    max_notification_message_id = d->last_message_id;
-    set_dialog_last_notification(d->dialog_id, group_info, 0, NotificationId(),
-                                 "remove_message_dialog_notifications 1");
-  } else if (max_notification_message_id == MessageId::max()) {
-    max_notification_message_id = get_next_local_message_id(d);
-    set_dialog_last_notification(d->dialog_id, group_info, 0, NotificationId(),
-                                 "remove_message_dialog_notifications 2");
-  } else {
-    LOG(FATAL) << "TODO support notification deletion up to " << max_message_id << " if it would be ever needed from "
-               << source;
-  }
-
-  send_closure_later(G()->notification_manager(), &NotificationManager::remove_notification_group,
-                     group_info.get_group_id(), NotificationId(), max_notification_message_id, 0, true,
-                     Promise<Unit>());
-}
-
-void MessagesManager::send_update_message_send_succeeded(Dialog *d, MessageId old_message_id, const Message *m,
-                                                         bool *need_update_dialog_pos) {
-  CHECK(m != nullptr);
-  CHECK(d != nullptr);
-  CHECK(d->is_update_new_chat_sent);
-  m->file_upload_ids.clear();  // TODO clear other send_message only fields
-  m->thumbnail_file_upload_ids.clear();
-  if (m->paid_message_star_count > 0) {
-    td_->star_manager_->add_pending_owned_star_count(m->paid_message_star_count, true);
-  }
-  if (!td_->auth_manager_->is_bot()) {
-    yet_unsent_message_full_id_to_persistent_message_id_.emplace({d->dialog_id, old_message_id}, m->message_id);
-
-    auto message =
-        delete_message(d, m->message_id, false, need_update_dialog_pos, "send_update_message_send_succeeded");
-    if (message != nullptr) {
-      send_update_delete_messages(d->dialog_id, {message->message_id.get()}, false);
-    }
-  }
-  if (old_message_id.is_valid() && m->message_id.is_valid() && m->message_id < old_message_id &&
-      !d->had_yet_unsent_message_id_overflow && m->message_id != MessageId(ServerMessageId(1))) {
-    LOG(ERROR) << "Sent " << old_message_id << " to " << d->dialog_id << " as " << m->message_id;
-  }
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageSendSucceeded>(
-                   get_message_object(d->dialog_id, m, "send_update_message_send_succeeded"), old_message_id.get()));
-}
-
-void MessagesManager::send_update_video_published(MessageFullId message_full_id) {
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateVideoPublished>(
-                   get_chat_id_object(message_full_id.get_dialog_id(), "updateVideoPublished"),
-                   message_full_id.get_message_id().get()));
-}
-
-void MessagesManager::send_update_message_content(const Dialog *d, Message *m, bool is_message_in_dialog,
-                                                  const char *source) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  if (is_message_in_dialog) {
-    delete_bot_command_message_id(d->dialog_id, m->message_id);
-    try_add_bot_command_message_id(d->dialog_id, m);
-    reregister_message_reply(d->dialog_id, m);
-    update_message_max_reply_media_timestamp(d, m, false);  // because the message reply can be just registered
-    update_message_max_own_media_timestamp(d, m);
-  }
-  send_update_message_content_impl(d->dialog_id, m, source);
-}
-
-void MessagesManager::send_update_message_content_impl(DialogId dialog_id, const Message *m, const char *source) const {
-  CHECK(m != nullptr);
-  if (!m->is_update_sent) {
-    LOG(INFO) << "Skip updateMessageContent for " << m->message_id << " in " << dialog_id << " from " << source;
-    return;
-  }
-  LOG(INFO) << "Send updateMessageContent for " << m->message_id << " in " << dialog_id << " from " << source;
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageContent>(get_chat_id_object(dialog_id, "updateMessageContent"),
-                                                                 m->message_id.get(),
-                                                                 get_message_message_content_object(dialog_id, m)));
-}
-
-void MessagesManager::send_update_message_edited(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-  cancel_dialog_action(dialog_id, m);
-  auto edit_date = m->hide_edit_date ? 0 : m->edit_date;
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageEdited>(
-                   get_chat_id_object(dialog_id, "updateMessageEdited"), m->message_id.get(), edit_date,
-                   get_reply_markup_object(td_->user_manager_.get(), m->reply_markup)));
-}
-
-void MessagesManager::send_update_message_interaction_info(DialogId dialog_id, const Message *m) const {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || !m->is_update_sent) {
-    return;
-  }
-
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageInteractionInfo>(
-                   get_chat_id_object(dialog_id, "updateMessageInteractionInfo"), m->message_id.get(),
-                   get_message_interaction_info_object(dialog_id, m)));
-}
-
-void MessagesManager::send_update_message_unread_reactions(DialogId dialog_id, const Message *m,
-                                                           int32 unread_reaction_count) const {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (!m->is_update_sent) {
-    LOG(INFO) << "Update unread reaction message count in " << dialog_id << " to " << unread_reaction_count;
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatUnreadReactionCount>(
-                     get_chat_id_object(dialog_id, "updateChatUnreadReactionCount"), unread_reaction_count));
-    return;
-  }
-
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageUnreadReactions>(
-                   get_chat_id_object(dialog_id, "updateMessageUnreadReactions"), m->message_id.get(),
-                   get_unread_reactions_object(dialog_id, m), unread_reaction_count));
-}
-
-void MessagesManager::send_update_message_fact_check(DialogId dialog_id, const Message *m) const {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || !m->is_update_sent) {
-    return;
-  }
-
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateMessageFactCheck>(get_chat_id_object(dialog_id, "updateMessageFactCheck"),
-                                                          m->message_id.get(), get_message_fact_check_object(m)));
-}
-
-void MessagesManager::send_update_message_live_location_viewed(MessageFullId message_full_id) {
-  CHECK(get_message(message_full_id) != nullptr);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageLiveLocationViewed>(
-                   get_chat_id_object(message_full_id.get_dialog_id(), "updateMessageLiveLocationViewed"),
-                   message_full_id.get_message_id().get()));
-}
-
-td_api::object_ptr<td_api::updateActiveLiveLocationMessages>
-MessagesManager::get_update_active_live_location_messages_object() const {
-  auto message_objects = transform(active_live_location_message_full_ids_, [this](MessageFullId message_full_id) {
-    const auto *m = get_message(message_full_id);
-    CHECK(m != nullptr);
-    return get_message_object(message_full_id.get_dialog_id(), m, "send_update_active_live_location_messages");
-  });
-  return td_api::make_object<td_api::updateActiveLiveLocationMessages>(std::move(message_objects));
-}
-
-void MessagesManager::send_update_active_live_location_messages() {
-  schedule_active_live_location_expiration();
-  send_closure(G()->td(), &Td::send_update, get_update_active_live_location_messages_object());
-}
-
-void MessagesManager::send_update_delete_messages(DialogId dialog_id, vector<int64> &&message_ids,
-                                                  bool is_permanent) const {
-  if (message_ids.empty()) {
-    return;
-  }
-
-  LOG_CHECK(have_dialog(dialog_id)) << "Wrong " << dialog_id << " in send_update_delete_messages";
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateDeleteMessages>(get_chat_id_object(dialog_id, "updateDeleteMessages"),
-                                                                 std::move(message_ids), is_permanent, false));
-}
-
-void MessagesManager::send_update_new_chat(Dialog *d, const char *source) {
-  CHECK(d != nullptr);
-  CHECK(d->messages.empty());
-  if ((d->dialog_id.get_type() == DialogType::User || d->dialog_id.get_type() == DialogType::SecretChat) &&
-      td_->auth_manager_->is_bot()) {
-    (void)td_->dialog_manager_->get_dialog_photo(d->dialog_id);  // to apply pending user photo
-  }
-  d->is_update_new_chat_being_sent = true;
-  auto chat_object = get_chat_object(d, source);
-  bool has_action_bar = chat_object->action_bar_ != nullptr;
-  bool has_background = chat_object->background_ != nullptr;
-  bool has_theme = !chat_object->theme_name_.empty();
-  d->last_sent_has_scheduled_messages = chat_object->has_scheduled_messages_;
-  send_closure(G()->td(), &Td::send_update, td_api::make_object<td_api::updateNewChat>(std::move(chat_object)));
-  d->is_update_new_chat_sent = true;
-  d->is_update_new_chat_being_sent = false;
-
-  if (has_action_bar) {
-    send_update_secret_chats_with_user_action_bar(d);
-  }
-  if (has_background) {
-    send_update_secret_chats_with_user_background(d);
-  }
-  if (has_theme) {
-    send_update_secret_chats_with_user_theme(d);
-  }
-}
-
-bool MessagesManager::need_hide_dialog_draft_message(const Dialog *d) const {
-  if (d->dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    return false;
-  }
-  return get_dialog_view_as_topics(d) || can_send_message(d->dialog_id).is_error();
-}
-
-void MessagesManager::send_update_chat_draft_message(Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_draft_message";
-  auto need_hide = need_hide_dialog_draft_message(d);
-  if (!need_hide || !d->last_need_hide_dialog_draft_message) {
-    d->last_need_hide_dialog_draft_message = need_hide;
-    auto draft_message = need_hide ? nullptr : d->draft_message.get();
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatDraftMessage>(
-                     get_chat_id_object(d->dialog_id, "updateChatDraftMessage"),
-                     draft_message == nullptr ? nullptr : draft_message->get_draft_message_object(td_),
-                     get_chat_positions_object(d)));
-
-    if (d->dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-      td_->saved_messages_manager_->on_topic_draft_message_updated(
-          SavedMessagesTopicId(d->dialog_id), draft_message == nullptr ? 0 : draft_message->get_date());
-    }
-  }
-}
-
-void MessagesManager::send_update_last_message_if_needed(const Dialog *d, const Message *m, const char *source) const {
-  if (m->message_id == d->last_message_id) {
-    send_update_chat_last_message_impl(d, source);
-  }
-  if (d->dialog_id == td_->dialog_manager_->get_my_dialog_id() && m->saved_messages_topic_id.is_valid()) {
-    td_->saved_messages_manager_->on_topic_message_updated(m->saved_messages_topic_id, m->message_id);
-  }
-}
-
-void MessagesManager::send_update_chat_last_message(Dialog *d, const char *source) {
-  update_dialog_pos(d, source, false);
-  send_update_chat_last_message_impl(d, source);
-}
-
-void MessagesManager::send_update_chat_last_message_impl(const Dialog *d, const char *source) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_last_message from "
-                                        << source;
-  LOG(INFO) << "Send updateChatLastMessage in " << d->dialog_id << " to " << d->last_message_id << " from " << source;
-  const auto *m = get_message(d, d->last_message_id);
-  auto message_object = get_message_object(d->dialog_id, m, "send_update_chat_last_message_impl");
-  auto positions_object = get_chat_positions_object(d);
-  auto update =
-      td_api::make_object<td_api::updateChatLastMessage>(get_chat_id_object(d->dialog_id, "updateChatLastMessage"),
-                                                         std::move(message_object), std::move(positions_object));
-  send_closure(G()->td(), &Td::send_update, std::move(update));
-}
-
-void MessagesManager::send_update_unread_message_count(DialogList &list, DialogId dialog_id, bool force,
-                                                       const char *source, bool from_database) {
-  if (td_->auth_manager_->is_bot() || !G()->use_message_database()) {
-    return;
-  }
-
-  auto dialog_list_id = list.dialog_list_id;
-  CHECK(list.is_message_unread_count_inited_);
-  if (list.unread_message_muted_count_ < 0 || list.unread_message_muted_count_ > list.unread_message_total_count_) {
-    if (!list.need_unread_count_recalc_) {
-      LOG(ERROR) << "Unread message count became invalid in " << dialog_list_id << ": "
-                 << list.unread_message_total_count_ << '/'
-                 << list.unread_message_total_count_ - list.unread_message_muted_count_ << " from " << source << " and "
-                 << dialog_id;
-    }
-    if (list.unread_message_muted_count_ < 0) {
-      list.unread_message_muted_count_ = 0;
-    }
-    if (list.unread_message_muted_count_ > list.unread_message_total_count_) {
-      list.unread_message_total_count_ = list.unread_message_muted_count_;
-    }
-  }
-
-  if (!from_database) {
-    LOG(INFO) << "Save unread message count in " << dialog_list_id;
-    G()->td_db()->get_binlog_pmc()->set(
-        PSTRING() << "unread_message_count" << dialog_list_id.get(),
-        PSTRING() << list.unread_message_total_count_ << ' ' << list.unread_message_muted_count_);
-  }
-
-  int32 unread_unmuted_count = list.unread_message_total_count_ - list.unread_message_muted_count_;
-  if (!force && running_get_difference_) {
-    LOG(INFO) << "Postpone updateUnreadMessageCount in " << dialog_list_id << " to " << list.unread_message_total_count_
-              << '/' << unread_unmuted_count << " from " << source << " and " << dialog_id;
-    postponed_unread_message_count_updates_.insert(dialog_list_id);
-  } else {
-    postponed_unread_message_count_updates_.erase(dialog_list_id);
-    LOG(INFO) << "Send updateUnreadMessageCount in " << dialog_list_id << " to " << list.unread_message_total_count_
-              << '/' << unread_unmuted_count << " from " << source << " and " << dialog_id;
-    send_closure(G()->td(), &Td::send_update, get_update_unread_message_count_object(list));
-  }
-}
-
-void MessagesManager::send_update_unread_chat_count(DialogList &list, DialogId dialog_id, bool force,
-                                                    const char *source, bool from_database) {
-  if (td_->auth_manager_->is_bot() || !G()->use_message_database()) {
-    return;
-  }
-
-  auto dialog_list_id = list.dialog_list_id;
-  CHECK(list.is_dialog_unread_count_inited_);
-  if (list.unread_dialog_muted_marked_count_ < 0 ||
-      list.unread_dialog_marked_count_ < list.unread_dialog_muted_marked_count_ ||
-      list.unread_dialog_muted_count_ < list.unread_dialog_muted_marked_count_ ||
-      list.unread_dialog_total_count_ + list.unread_dialog_muted_marked_count_ <
-          list.unread_dialog_muted_count_ + list.unread_dialog_marked_count_) {
-    if (!list.need_unread_count_recalc_) {
-      LOG(ERROR) << "Unread chat count became invalid in " << dialog_list_id << ": " << list.unread_dialog_total_count_
-                 << '/' << list.unread_dialog_total_count_ - list.unread_dialog_muted_count_ << '/'
-                 << list.unread_dialog_marked_count_ << '/'
-                 << list.unread_dialog_marked_count_ - list.unread_dialog_muted_marked_count_ << " from " << source
-                 << " and " << dialog_id;
-    }
-    if (list.unread_dialog_muted_marked_count_ < 0) {
-      list.unread_dialog_muted_marked_count_ = 0;
-    }
-    if (list.unread_dialog_marked_count_ < list.unread_dialog_muted_marked_count_) {
-      list.unread_dialog_marked_count_ = list.unread_dialog_muted_marked_count_;
-    }
-    if (list.unread_dialog_muted_count_ < list.unread_dialog_muted_marked_count_) {
-      list.unread_dialog_muted_count_ = list.unread_dialog_muted_marked_count_;
-    }
-    if (list.unread_dialog_total_count_ + list.unread_dialog_muted_marked_count_ <
-        list.unread_dialog_muted_count_ + list.unread_dialog_marked_count_) {
-      list.unread_dialog_total_count_ =
-          list.unread_dialog_muted_count_ + list.unread_dialog_marked_count_ - list.unread_dialog_muted_marked_count_;
-    }
-  }
-
-  if (!from_database) {
-    save_unread_chat_count(list);
-  }
-
-  bool need_postpone = !force && running_get_difference_;
-  int32 unread_unmuted_count = list.unread_dialog_total_count_ - list.unread_dialog_muted_count_;
-  int32 unread_unmuted_marked_count = list.unread_dialog_marked_count_ - list.unread_dialog_muted_marked_count_;
-  LOG(INFO) << (need_postpone ? "Postpone" : "Send") << " updateUnreadChatCount in " << dialog_list_id << " to "
-            << list.in_memory_dialog_total_count_ << '/' << list.server_dialog_total_count_ << '+'
-            << list.secret_chat_total_count_ << '/' << list.unread_dialog_total_count_ << '/' << unread_unmuted_count
-            << '/' << list.unread_dialog_marked_count_ << '/' << unread_unmuted_marked_count << " from " << source
-            << " and " << dialog_id;
-  if (need_postpone) {
-    postponed_unread_chat_count_updates_.insert(dialog_list_id);
-  } else {
-    postponed_unread_chat_count_updates_.erase(dialog_list_id);
-    send_closure(G()->td(), &Td::send_update, get_update_unread_chat_count_object(list));
-  }
-}
-
-void MessagesManager::save_unread_chat_count(const DialogList &list) {
-  LOG(INFO) << "Save unread chat count in " << list.dialog_list_id;
-  G()->td_db()->get_binlog_pmc()->set(
-      PSTRING() << "unread_dialog_count" << list.dialog_list_id.get(),
-      PSTRING() << list.unread_dialog_total_count_ << ' ' << list.unread_dialog_muted_count_ << ' '
-                << list.unread_dialog_marked_count_ << ' ' << list.unread_dialog_muted_marked_count_ << ' '
-                << list.server_dialog_total_count_ << ' ' << list.secret_chat_total_count_);
-}
-
-void MessagesManager::send_update_chat_read_inbox(const Dialog *d, bool force, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_read_inbox from "
-                                        << source;
-  if (!force && (running_get_difference_ || running_get_channel_difference(d->dialog_id) ||
-                 get_channel_difference_to_log_event_id_.count(d->dialog_id) != 0 ||
-                 (d->open_count > 0 && d->server_unread_count + d->local_unread_count > 0))) {
-    LOG(INFO) << "Postpone updateChatReadInbox in " << d->dialog_id << "("
-              << td_->dialog_manager_->get_dialog_title(d->dialog_id) << ") to " << d->server_unread_count << " + "
-              << d->local_unread_count << " from " << source;
-    postponed_chat_read_inbox_updates_.insert(d->dialog_id);
-    if (d->open_count > 0) {
-      send_update_chat_read_inbox_timeout_.add_timeout_in(d->dialog_id.get(), 0.1);
-    }
-  } else {
-    postponed_chat_read_inbox_updates_.erase(d->dialog_id);
-    LOG(INFO) << "Send updateChatReadInbox in " << d->dialog_id << "("
-              << td_->dialog_manager_->get_dialog_title(d->dialog_id) << ") to " << d->server_unread_count << " + "
-              << d->local_unread_count << " from " << source;
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatReadInbox>(
-                     get_chat_id_object(d->dialog_id, "updateChatReadInbox"), d->last_read_inbox_message_id.get(),
-                     d->server_unread_count + d->local_unread_count));
-  }
-}
-
-void MessagesManager::send_update_chat_read_outbox(const Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_read_outbox";
-  on_dialog_updated(d->dialog_id, "send_update_chat_read_outbox");
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatReadOutbox>(
-                   get_chat_id_object(d->dialog_id, "updateChatReadOutbox"), d->last_read_outbox_message_id.get()));
-}
-
-void MessagesManager::send_update_chat_unread_mention_count(const Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_unread_mention_count";
-  LOG(INFO) << "Update unread mention message count in " << d->dialog_id << " to " << d->unread_mention_count;
-  on_dialog_updated(d->dialog_id, "send_update_chat_unread_mention_count");
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatUnreadMentionCount>(
-                   get_chat_id_object(d->dialog_id, "updateChatUnreadMentionCount"), d->unread_mention_count));
-}
-
-void MessagesManager::send_update_chat_unread_reaction_count(const Dialog *d, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id
-                                        << " in send_update_chat_unread_reaction_count from " << source;
-  LOG(INFO) << "Update unread reaction message count in " << d->dialog_id << " to " << d->unread_reaction_count
-            << " from " << source;
-  on_dialog_updated(d->dialog_id, "send_update_chat_unread_reaction_count");
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatUnreadReactionCount>(
-                   get_chat_id_object(d->dialog_id, "updateChatUnreadReactionCount"), d->unread_reaction_count));
-}
-
-void MessagesManager::send_update_chat_position(DialogListId dialog_list_id, const Dialog *d,
-                                                const char *source) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_position";
-  LOG(INFO) << "Send updateChatPosition for " << d->dialog_id << " in " << dialog_list_id << " from " << source;
-  auto position = get_chat_position_object(dialog_list_id, d);
-  if (position == nullptr) {
-    position = td_api::make_object<td_api::chatPosition>(dialog_list_id.get_chat_list_object(), 0, false, nullptr);
-  }
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatPosition>(get_chat_id_object(d->dialog_id, "updateChatPosition"),
-                                                               std::move(position)));
-}
-
-void MessagesManager::send_update_secret_chats_with_user_action_bar(const Dialog *d) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (d->dialog_id.get_type() != DialogType::User) {
-    return;
-  }
-
-  td_->user_manager_->for_each_secret_chat_with_user(
-      d->dialog_id.get_user_id(), [this, user_d = d](SecretChatId secret_chat_id) {
-        DialogId dialog_id(secret_chat_id);
-        auto secret_chat_d = get_dialog(dialog_id);  // must not create the dialog
-        if (secret_chat_d != nullptr && secret_chat_d->is_update_new_chat_sent) {
-          send_closure(G()->td(), &Td::send_update,
-                       td_api::make_object<td_api::updateChatActionBar>(
-                           get_chat_id_object(dialog_id, "updateChatActionBar"), get_chat_action_bar_object(user_d)));
-        }
-      });
-}
-
-void MessagesManager::send_update_chat_action_bar(Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (d->action_bar != nullptr && d->action_bar->is_empty()) {
-    d->action_bar = nullptr;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_action_bar";
-  on_dialog_updated(d->dialog_id, "send_update_chat_action_bar");
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatActionBar>(get_chat_id_object(d->dialog_id, "updateChatActionBar"),
-                                                                get_chat_action_bar_object(d)));
-
-  send_update_secret_chats_with_user_action_bar(d);
-}
-
-void MessagesManager::send_update_chat_business_bot_manage_bar(Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (d->business_bot_manage_bar != nullptr && d->business_bot_manage_bar->is_empty()) {
-    d->business_bot_manage_bar = nullptr;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_business_bot_manage_bar";
-  on_dialog_updated(d->dialog_id, "send_update_chat_business_bot_manage_bar");
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateChatBusinessBotManageBar>(
-          get_chat_id_object(d->dialog_id, "updateChatBusinessBotManageBar"), get_business_bot_manage_bar_object(d)));
-}
-
-void MessagesManager::send_update_chat_available_reactions(const Dialog *d) {
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_available_reactions";
-  auto available_reactions = get_dialog_active_reactions(d).get_chat_available_reactions_object(td_);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatAvailableReactions>(
-                   get_chat_id_object(d->dialog_id, "updateChatAvailableReactions"), std::move(available_reactions)));
-}
-
-void MessagesManager::send_update_secret_chats_with_user_background(const Dialog *d) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (d->dialog_id.get_type() != DialogType::User) {
-    return;
-  }
-
-  td_->user_manager_->for_each_secret_chat_with_user(
-      d->dialog_id.get_user_id(), [this, user_d = d](SecretChatId secret_chat_id) {
-        DialogId dialog_id(secret_chat_id);
-        auto secret_chat_d = get_dialog(dialog_id);  // must not create the dialog
-        if (secret_chat_d != nullptr && secret_chat_d->is_update_new_chat_sent) {
-          send_closure(G()->td(), &Td::send_update,
-                       td_api::make_object<td_api::updateChatBackground>(
-                           get_chat_id_object(dialog_id, "updateChatBackground"), get_chat_background_object(user_d)));
-        }
-      });
-}
-
-void MessagesManager::send_update_chat_background(const Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  CHECK(d->dialog_id.get_type() != DialogType::SecretChat);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_background";
-  on_dialog_updated(d->dialog_id, "send_update_chat_background");
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatBackground>(
-                   get_chat_id_object(d->dialog_id, "updateChatBackground"), get_chat_background_object(d)));
-
-  send_update_secret_chats_with_user_background(d);
-}
-
-void MessagesManager::send_update_secret_chats_with_user_theme(const Dialog *d) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (d->dialog_id.get_type() != DialogType::User) {
-    return;
-  }
-
-  td_->user_manager_->for_each_secret_chat_with_user(
-      d->dialog_id.get_user_id(), [this, user_d = d](SecretChatId secret_chat_id) {
-        DialogId dialog_id(secret_chat_id);
-        auto secret_chat_d = get_dialog(dialog_id);  // must not create the dialog
-        if (secret_chat_d != nullptr && secret_chat_d->is_update_new_chat_sent) {
-          send_closure(G()->td(), &Td::send_update,
-                       td_api::make_object<td_api::updateChatTheme>(get_chat_id_object(dialog_id, "updateChatTheme"),
-                                                                    user_d->theme_name));
-        }
-      });
-}
-
-void MessagesManager::send_update_chat_theme(const Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  CHECK(d->dialog_id.get_type() != DialogType::SecretChat);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_theme";
-  on_dialog_updated(d->dialog_id, "send_update_chat_theme");
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateChatTheme>(get_chat_id_object(d->dialog_id, "updateChatTheme"), d->theme_name));
-
-  send_update_secret_chats_with_user_theme(d);
-}
-
-void MessagesManager::send_update_chat_pending_join_requests(const Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_pending_join_requests";
-  on_dialog_updated(d->dialog_id, "send_update_chat_pending_join_requests");
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateChatPendingJoinRequests>(
-          get_chat_id_object(d->dialog_id, "updateChatPendingJoinRequests"), get_chat_join_requests_info_object(d)));
-}
-
-void MessagesManager::send_update_chat_video_chat(const Dialog *d) {
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_video_chat";
-  on_dialog_updated(d->dialog_id, "send_update_chat_video_chat");
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatVideoChat>(get_chat_id_object(d->dialog_id, "updateChatVideoChat"),
-                                                                get_video_chat_object(d)));
-}
-
-void MessagesManager::send_update_chat_message_sender(const Dialog *d) {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_message_sender";
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatMessageSender>(
-                   get_chat_id_object(d->dialog_id, "updateChatMessageSender"), get_default_message_sender_object(d)));
-}
-
-void MessagesManager::send_update_chat_message_auto_delete_time(const Dialog *d) {
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_message_auto_delete_time";
-  on_dialog_updated(d->dialog_id, "send_update_chat_message_auto_delete_time");
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatMessageAutoDeleteTime>(
-                   get_chat_id_object(d->dialog_id, "updateChatMessageAutoDeleteTime"),
-                   d->message_ttl.get_message_auto_delete_time_object()));
-}
-
-void MessagesManager::send_update_chat_has_scheduled_messages(Dialog *d, bool from_deletion) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (!have_dialog_scheduled_messages_in_memory(d)) {
-    if (d->has_scheduled_database_messages) {
-      if (d->has_loaded_scheduled_messages_from_database) {
-        set_dialog_has_scheduled_database_messages_impl(d, false);
-      } else {
-        CHECK(G()->use_message_database());
-        repair_dialog_scheduled_messages(d);
-      }
-    }
-    if (d->has_scheduled_server_messages) {
-      if (from_deletion && d->scheduled_messages_sync_generation > 0) {
-        set_dialog_has_scheduled_server_messages(d, false);
-      } else {
-        d->last_repair_scheduled_messages_generation = 0;
-        repair_dialog_scheduled_messages(d);
-      }
-    }
-  }
-
-  LOG(INFO) << "In " << d->dialog_id << " have scheduled messages on server = " << d->has_scheduled_server_messages
-            << ", in database = " << d->has_scheduled_database_messages
-            << " and in memory = " << have_dialog_scheduled_messages_in_memory(d)
-            << "; was loaded from database = " << d->has_loaded_scheduled_messages_from_database;
-  bool has_scheduled_messages = get_dialog_has_scheduled_messages(d);
-  if (has_scheduled_messages == d->last_sent_has_scheduled_messages) {
-    return;
-  }
-  d->last_sent_has_scheduled_messages = has_scheduled_messages;
-
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in send_update_chat_has_scheduled_messages";
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatHasScheduledMessages>(
-                   get_chat_id_object(d->dialog_id, "updateChatHasScheduledMessages"), has_scheduled_messages));
-}
-
-void MessagesManager::on_send_message_get_quick_ack(int64 random_id) {
-  auto it = being_sent_messages_.find(random_id);
-  if (it == being_sent_messages_.end()) {
-    LOG(ERROR) << "Receive quick ack about unknown message with random_id = " << random_id;
-    return;
-  }
-
-  auto dialog_id = it->second.get_dialog_id();
-  auto message_id = it->second.get_message_id();
-
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageSendAcknowledged>(
-                   get_chat_id_object(dialog_id, "updateMessageSendAcknowledged"), message_id.get()));
-}
-
-bool MessagesManager::is_invalid_poll_message(const telegram_api::Message *message) {
-  CHECK(message != nullptr);
-  auto constructor_id = message->get_id();
-  if (constructor_id != telegram_api::message::ID) {
-    return false;
-  }
-
-  auto media = static_cast<const telegram_api::message *>(message)->media_.get();
-  if (media == nullptr || media->get_id() != telegram_api::messageMediaPoll::ID) {
-    return false;
-  }
-
-  auto poll = static_cast<const telegram_api::messageMediaPoll *>(media)->poll_.get();
-  return !PollId(poll->id_).is_valid();
-}
-
-void MessagesManager::check_send_message_result(int64 random_id, DialogId dialog_id,
-                                                const telegram_api::Updates *updates_ptr, const char *source) {
-  CHECK(updates_ptr != nullptr);
-  CHECK(source != nullptr);
-  auto sent_messages = UpdatesManager::get_new_messages(updates_ptr);
-  auto sent_messages_random_ids = UpdatesManager::get_sent_messages_random_ids(updates_ptr);
-
-  if (sent_messages.size() != 1u || sent_messages_random_ids.size() != 1u ||
-      *sent_messages_random_ids.begin() != random_id ||
-      DialogId::get_message_dialog_id(sent_messages[0].first) != dialog_id ||
-      is_invalid_poll_message(sent_messages[0].first)) {
-    LOG(ERROR) << "Receive wrong result for sending message with random_id " << random_id << " from " << source
-               << " to " << dialog_id << ": " << oneline(to_string(*updates_ptr));
-    Dialog *d = get_dialog(dialog_id);
-    CHECK(d != nullptr);
-    if (dialog_id.get_type() == DialogType::Channel) {
-      get_channel_difference(dialog_id, d->pts, 0, MessageId(), true, "check_send_message_result");
-    } else {
-      td_->updates_manager_->schedule_get_difference("check_send_message_result");
-    }
-    repair_dialog_scheduled_messages(d);
-  }
-}
-
-void MessagesManager::update_reply_to_message_id(DialogId dialog_id, MessageId old_message_id, MessageId new_message_id,
-                                                 bool have_new_message, const char *source) {
-  LOG(DEBUG) << "Update replies of " << MessageFullId{dialog_id, old_message_id} << " to " << new_message_id << " from "
-             << source;
-  MessageFullId old_message_full_id(dialog_id, old_message_id);
-  auto it = replied_yet_unsent_messages_.find(old_message_full_id);
-  if (it == replied_yet_unsent_messages_.end()) {
-    return;
-  }
-  CHECK(old_message_id.is_yet_unsent());
-  CHECK(new_message_id == MessageId() || new_message_id.is_valid() || new_message_id.is_valid_scheduled());
-
-  for (auto message_full_id : it->second) {
-    auto reply_d = get_dialog(message_full_id.get_dialog_id());
-    CHECK(reply_d != nullptr);
-    auto replied_m = get_message(reply_d, message_full_id.get_message_id());
-    CHECK(replied_m != nullptr);
-    const auto *input_reply_to = get_message_input_reply_to(replied_m);
-    CHECK(input_reply_to != nullptr);
-    CHECK(input_reply_to->get_reply_message_full_id(reply_d->dialog_id) == old_message_full_id);
-    if (new_message_id != MessageId()) {
-      LOG_CHECK(replied_m->replied_message_info.get_reply_message_full_id(reply_d->dialog_id, true) ==
-                old_message_full_id)
-          << old_message_full_id << ' ' << new_message_id << ' ' << replied_m->replied_message_info << ' '
-          << *input_reply_to;
-      update_message_reply_to_message_id(reply_d, replied_m, new_message_id, true);
-    } else {
-      set_message_reply(reply_d, replied_m, MessageInputReplyTo(), true);
-    }
-  }
-  if (have_new_message) {
-    CHECK(new_message_id != MessageId());
-    CHECK(!new_message_id.is_yet_unsent());
-    replied_by_yet_unsent_messages_[MessageFullId{dialog_id, new_message_id}] = static_cast<int32>(it->second.size());
-  } else {
-    replied_by_yet_unsent_messages_.erase(MessageFullId{dialog_id, new_message_id});
-  }
-  replied_yet_unsent_messages_.erase(it);
-}
-
-MessageFullId MessagesManager::on_send_message_success(int64 random_id, MessageId new_message_id, int32 date,
-                                                       int32 ttl_period, FileId new_file_id, const char *source) {
-  CHECK(source != nullptr);
-  // do not try to run getDifference from this function
-  if (DROP_SEND_MESSAGE_UPDATES) {
-    return {};
-  }
-  if (!new_message_id.is_valid()) {
-    LOG(ERROR) << "Receive " << new_message_id << " as sent message from " << source;
-    on_send_message_fail(
-        random_id,
-        Status::Error(500, "Internal Server Error: receive invalid message identifier as sent message identifier"));
-    return {};
-  }
-  if (new_message_id.is_yet_unsent()) {
-    LOG(ERROR) << "Receive " << new_message_id << " as sent message from " << source;
-    on_send_message_fail(random_id,
-                         Status::Error(500, "Internal Server Error: receive yet unsent message as sent message"));
-    return {};
-  }
-
-  auto it = being_sent_messages_.find(random_id);
-  if (it == being_sent_messages_.end()) {
-    LOG(ERROR) << "Result from sendMessage for " << new_message_id << " with random_id " << random_id << " sent at "
-               << date << " comes from " << source << " after updateNewMessageId, but was not discarded by PTS";
-    return {};
-  }
-
-  auto dialog_id = it->second.get_dialog_id();
-  auto old_message_id = it->second.get_message_id();
-
-  if (new_message_id.is_local() && dialog_id.get_type() != DialogType::SecretChat) {
-    LOG(ERROR) << "Receive " << new_message_id << " as sent message from " << source;
-    on_send_message_fail(random_id, Status::Error(500, "Internal Server Error: receive local as sent message"));
-    return {};
-  }
-
-  being_sent_messages_.erase(it);
-
-  // must be called before delete_message
-  update_reply_to_message_id(dialog_id, old_message_id, new_message_id, true, "on_send_message_success");
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  bool need_update_dialog_pos = false;
-  being_readded_message_id_ = {dialog_id, old_message_id};
-  auto sent_message = delete_message(d, old_message_id, false, &need_update_dialog_pos, source);
-  if (sent_message == nullptr) {
-    delete_sent_message_on_server(dialog_id, new_message_id, old_message_id);
-    being_readded_message_id_ = MessageFullId();
-    return {};
-  }
-
-  // imitation of update_message(d, sent_message.get(), std::move(new_message), false);
-  if (date <= 0) {
-    LOG(ERROR) << "Receive " << new_message_id << " in " << dialog_id << " with wrong date " << date << " from "
-               << source;
-  } else {
-    LOG_CHECK(sent_message->date > 0) << old_message_id << ' ' << sent_message->message_id << ' ' << new_message_id
-                                      << ' ' << sent_message->date << ' ' << date << ' ' << source;
-    sent_message->date = date;
-    CHECK(d->last_message_id != old_message_id);
-  }
-
-  sent_message->ttl_period = ttl_period;
-
-  if (merge_message_content_file_id(td_, sent_message->content.get(), new_file_id)) {
-    send_update_message_content(d, sent_message.get(), false, source);
-  }
-  // upload was canceled in delete_message
-
-  const auto *input_reply_to = get_message_input_reply_to(sent_message.get());
-  if (input_reply_to != nullptr) {
-    auto reply_message_full_id = input_reply_to->get_reply_message_full_id(dialog_id);
-    auto reply_message_id = reply_message_full_id.get_message_id();
-    if (reply_message_id.is_valid() && reply_message_id.is_yet_unsent()) {
-      set_message_reply(d, sent_message.get(), MessageInputReplyTo(), false);
-    }
-  }
-
-  sent_message->message_id = new_message_id;
-
-  send_update_message_send_succeeded(d, old_message_id, sent_message.get(), &need_update_dialog_pos);
-
-  bool need_update = true;
-  Message *m =
-      add_message_to_dialog(d, std::move(sent_message), false, true, &need_update, &need_update_dialog_pos, source);
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, source);
-  }
-
-  if (m == nullptr) {
-    if (!(old_message_id.is_valid() && new_message_id < old_message_id) &&
-        !(ttl_period > 0 && date + ttl_period <= G()->server_time())) {
-      // if message ID has decreased, which could happen if some messages were lost,
-      // or the message has already been deleted after auto-delete timer expired, then the error is expected
-      LOG(ERROR) << "Failed to add just sent " << old_message_id << " to " << dialog_id << " as " << new_message_id
-                 << " from " << source << ": " << debug_add_message_to_dialog_fail_reason_;
-    }
-    send_update_delete_messages(dialog_id, {new_message_id.get()}, true);
-    being_readded_message_id_ = MessageFullId();
-    return {};
-  }
-
-  if (try_add_active_live_location(dialog_id, m)) {
-    send_update_active_live_location_messages();
-  }
-  update_reply_count_by_message(d, +1, m);
-  update_forward_count(dialog_id, m);
-  being_readded_message_id_ = MessageFullId();
-  return {dialog_id, new_message_id};
-}
-
-void MessagesManager::on_send_message_file_error(int64 random_id, size_t pos, vector<int> &&bad_parts) {
-  auto it = being_sent_messages_.find(random_id);
-  if (it == being_sent_messages_.end()) {
-    // we can't receive fail more than once
-    // but message can be successfully sent before
-    LOG(WARNING) << "Receive an error for successfully sent message with random_id = " << random_id;
-    return;
-  }
-
-  auto message_full_id = it->second;
-
-  being_sent_messages_.erase(it);
-
-  Message *m = get_message(message_full_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel
-    // don't need to send error to the user, because the message has already been deleted
-    // and there is nothing to be deleted from the server
-    LOG(INFO) << "Don't need to send already deleted by the user or sent to an inaccessible chat " << message_full_id;
-    return;
-  }
-  CHECK(m->message_id.is_yet_unsent());
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    CHECK(pos == 0);
-    CHECK(!m->message_id.is_scheduled());
-    Dialog *d = get_dialog(dialog_id);
-    CHECK(d != nullptr);
-
-    delete_random_id_to_message_id_correspondence(d, m->random_id, m->message_id);
-
-    // need to change message random_id before resending
-    m->random_id = generate_new_random_id(d);
-
-    add_random_id_to_message_id_correspondence(d, m->random_id, m->message_id);
-
-    auto log_event = SendMessageLogEvent(dialog_id, m);
-    CHECK(m->send_message_log_event_id != 0);
-    binlog_rewrite(G()->td_db()->get_binlog(), m->send_message_log_event_id, LogEvent::HandlerType::SendMessage,
-                   get_log_event_storer(log_event));
-  }
-
-  int32 media_pos = -1;
-  if (m->content->get_type() == MessageContentType::PaidMedia) {
-    media_pos = static_cast<int32>(pos);
-
-    LOG(INFO) << "Add paid media group send for " << message_full_id;
-    auto &request = pending_paid_media_group_sends_[message_full_id];
-    CHECK(request.is_finished.empty());
-    CHECK(static_cast<size_t>(media_pos) < m->file_upload_ids.size());
-    request.is_finished.resize(m->file_upload_ids.size(), true);
-    request.is_finished[media_pos] = false;
-    request.finished_count = m->file_upload_ids.size() - 1;
-    request.results.resize(m->file_upload_ids.size());
-  } else {
-    CHECK(pos == 0);
-  }
-
-  do_send_message(dialog_id, m, media_pos, std::move(bad_parts));
-}
-
-void MessagesManager::on_send_media_group_file_reference_error(DialogId dialog_id, vector<int64> random_ids) {
-  int64 media_album_id = 0;
-  vector<MessageId> message_ids;
-  vector<Message *> messages;
-  for (auto &random_id : random_ids) {
-    auto it = being_sent_messages_.find(random_id);
-    if (it == being_sent_messages_.end()) {
-      // we can't receive fail more than once
-      // but message can be successfully sent before
-      LOG(ERROR) << "Receive file reference invalid error about successfully sent message with random_id = "
-                 << random_id;
-      continue;
-    }
-
-    auto message_full_id = it->second;
-
-    being_sent_messages_.erase(it);
-
-    Message *m = get_message(message_full_id);
-    if (m == nullptr) {
-      // message has already been deleted by the user or sent to inaccessible channel
-      // don't need to send error to the user, because the message has already been deleted
-      // and there is nothing to be deleted from the server
-      LOG(INFO) << "Don't need to send already deleted by the user or sent to an inaccessible chat " << message_full_id;
-      continue;
-    }
-
-    CHECK(m->media_album_id != 0);
-    CHECK(media_album_id == 0 || media_album_id == m->media_album_id);
-    media_album_id = m->media_album_id;
-
-    CHECK(dialog_id == message_full_id.get_dialog_id());
-    message_ids.push_back(m->message_id);
-    messages.push_back(m);
-  }
-
-  CHECK(dialog_id.get_type() != DialogType::SecretChat);
-
-  if (message_ids.empty()) {
-    // all messages were deleted, nothing to do
-    return;
-  }
-
-  auto &request = pending_message_group_sends_[media_album_id];
-  CHECK(!request.dialog_id.is_valid());
-  CHECK(request.finished_count == 0);
-  CHECK(request.results.empty());
-  request.dialog_id = dialog_id;
-  request.message_ids = std::move(message_ids);
-  request.is_finished.resize(request.message_ids.size(), false);
-  for (size_t i = 0; i < request.message_ids.size(); i++) {
-    request.results.push_back(Status::OK());
-  }
-
-  for (auto m : messages) {
-    do_send_message(dialog_id, m, -1, {-1});
-  }
-}
-
-bool MessagesManager::process_send_message_fail_error(int32 &error_code, string &error_message, DialogId dialog_id,
-                                                      bool is_bot, MessageContentType content_type) {
-  switch (error_code) {
-    case 420:
-      error_code = 429;
-      LOG(ERROR) << "Receive error 420: " << error_message;
-      break;
-    case 429:
-      if (!begins_with(error_message, "Too Many Requests: retry after ")) {
-        LOG(ERROR) << "Wrong error message: " << error_message;
-      }
-      break;
-    case 400:
-      if (error_message == "MESSAGE_TOO_LONG") {
-        error_message = "Message is too long";
-      } else if (error_message == "MEDIA_CAPTION_TOO_LONG") {
-        error_message = "Message caption is too long";
-      } else if (error_message == "INPUT_USER_DEACTIVATED") {
-        error_code = 403;
-        error_message = "User is deactivated";
-      } else if (error_message == "USER_IS_BOT") {
-        if (is_bot && (dialog_id.get_type() == DialogType::User || dialog_id.get_type() == DialogType::SecretChat)) {
-          error_code = 403;
-          error_message = "Bots can't send messages to bots";
-        }
-      } else if (error_message == "PEER_ID_INVALID") {
-        error_code = 403;
-        if (is_bot && (dialog_id.get_type() == DialogType::User || dialog_id.get_type() == DialogType::SecretChat)) {
-          error_message = "Bot can't initiate conversation with a user";
-        }
-      } else if (error_message == "CHAT_FORWARDS_RESTRICTED") {
-        error_message = "Message has protected content and can't be forwarded";
-      } else if (error_message == "MEDIA_EMPTY") {
-        if (content_type == MessageContentType::Game) {
-          error_message = "Wrong game short name specified";
-        } else if (content_type == MessageContentType::Invoice) {
-          error_message = "Wrong invoice information specified";
-        } else if (content_type == MessageContentType::Poll) {
-          error_message = "Wrong poll data specified";
-        } else if (content_type == MessageContentType::Contact) {
-          error_message = "Wrong phone number specified";
-        } else if (content_type == MessageContentType::Story) {
-          error_message = "Wrong story file specified";
-        } else {
-          error_message = "Wrong file identifier/HTTP URL specified";
-        }
-      } else if (error_message == "EXTENDED_MEDIA_INVALID") {
-        error_message = "Invalid paid media file specified";
-      } else if (error_message == "PHOTO_EXT_INVALID") {
-        error_message = "Photo has unsupported extension. Use one of .jpg, .jpeg, .gif, .png, .tif or .bmp";
-      } else {
-        return false;
-      }
-      break;
-    case 403:
-      if (error_message != "CHANNEL_PUBLIC_GROUP_NA" && error_message != "USER_IS_BLOCKED" &&
-          error_message != "USER_BOT_INVALID" && error_message != "USER_DELETED") {
-        error_code = 400;
-      } else {
-        return false;
-      }
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-
-void MessagesManager::on_send_message_fail(int64 random_id, Status error) {
-  CHECK(error.is_error());
-
-  auto it = being_sent_messages_.find(random_id);
-  if (it == being_sent_messages_.end()) {
-    // we can't receive fail more than once
-    // but message can be successfully sent before
-    if (error.code() != NetQuery::Canceled) {
-      LOG(ERROR) << "Receive error " << error << " about successfully sent message with random_id = " << random_id;
-    }
-    return;
-  }
-
-  auto message_full_id = it->second;
-
-  being_sent_messages_.erase(it);
-
-  Message *m = get_message(message_full_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel
-    // don't need to send error to the user, because the message has already been deleted
-    // and there is nothing to be deleted from the server
-    LOG(INFO) << "Don't need to send already deleted by the user or sent to an inaccessible chat " << message_full_id;
-    return;
-  }
-  LOG_IF(ERROR, error.code() == NetQuery::Canceled)
-      << "Receive error " << error << " about sent message with random_id = " << random_id;
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  int32 error_code = error.code();
-  string error_message = error.message().str();
-  if (!process_send_message_fail_error(error_code, error_message, dialog_id, td_->auth_manager_->is_bot(),
-                                       m->content->get_type())) {
-    if (error_message == "QUOTE_TEXT_INVALID") {
-      auto *input_reply_to = get_message_input_reply_to(m);
-      if (input_reply_to != nullptr && !input_reply_to->is_empty() && input_reply_to->has_quote()) {
-        auto reply_message_full_id = input_reply_to->get_reply_message_full_id(dialog_id);
-        if (reply_message_full_id.get_message_id().is_valid()) {
-          get_message_from_server(reply_message_full_id, Auto(), "QUOTE_TEXT_INVALID");
-        }
-      } else {
-        error_code = 500;
-        error_message = "Unexpected QUOTE_TEXT_INVALID error";
-      }
-    } else if (error_message == "REPLY_MESSAGE_ID_INVALID") {
-      auto *input_reply_to = get_message_input_reply_to(m);
-      if (input_reply_to != nullptr && !input_reply_to->is_empty()) {
-        auto reply_message_full_id = input_reply_to->get_reply_message_full_id(dialog_id);
-        if (reply_message_full_id.get_message_id().is_valid()) {
-          get_message_from_server(reply_message_full_id, Auto(), "REPLY_MESSAGE_ID_INVALID");
-        }
-      } else {
-        error_code = 500;
-        error_message = "Unexpected REPLY_MESSAGE_ID_INVALID error";
-      }
-    } else if (begins_with(error_message, "ALLOW_PAYMENT_REQUIRED_")) {
-      td_->dialog_manager_->reload_dialog_info_full(dialog_id, "ALLOW_PAYMENT_REQUIRED");
-    } else if (error_message == "CHAT_GUEST_SEND_FORBIDDEN") {
-      error_code = 400;
-      if (dialog_id.get_type() == DialogType::Channel) {
-        td_->chat_manager_->reload_channel(dialog_id.get_channel_id(), Promise<Unit>(), "CHAT_GUEST_SEND_FORBIDDEN");
-      }
-    } else if (error_message == "REPLY_MARKUP_INVALID") {
-      if (m->reply_markup == nullptr) {
-        LOG(ERROR) << "Receive " << error_message << " for "
-                   << oneline(to_string(get_message_object(dialog_id, m, "on_send_message_fail")));
-      } else {
-        LOG(ERROR) << "Receive " << error_message << " for " << message_full_id << " with keyboard "
-                   << *m->reply_markup;
-      }
-    } else if (error_message == "ENTITY_BOUNDS_INVALID") {
-      LOG(ERROR) << "Receive ENTITY_BOUNDS_INVALID for "
-                 << to_string(get_message_object(dialog_id, m, "on_send_message_fail"));
-      auto text = get_message_content_text(m->content.get());
-      if (text != nullptr) {
-        LOG(ERROR) << "Receive ENTITY_BOUNDS_INVALID for " << hex_encode(text->text) << " with entities "
-                   << text->entities;
-      }
-    }
-  }
-  if (error_code != 403 && !(error_code == 500 && G()->close_flag()) && error_message != "USER_IS_BLOCKED") {
-    LOG(WARNING) << "Failed to send " << message_full_id << " with the error " << error;
-  }
-  fail_send_message(message_full_id, error_code, error_message);
-}
-
-MessageId MessagesManager::get_next_message_id(Dialog *d, MessageType type) const {
-  CHECK(d != nullptr);
-  MessageId last_message_id;
-  if (td_->auth_manager_->is_bot()) {
-    last_message_id = max(d->last_assigned_message_id, d->max_unavailable_message_id);
-  } else {
-    last_message_id = std::max({d->last_message_id, d->last_new_message_id, d->last_database_message_id,
-                                d->last_assigned_message_id, d->last_clear_history_message_id,
-                                d->deleted_last_message_id, d->max_unavailable_message_id, d->max_added_message_id});
-    if (last_message_id < d->last_read_inbox_message_id &&
-        d->last_read_inbox_message_id < d->last_new_message_id.get_next_server_message_id()) {
-      last_message_id = d->last_read_inbox_message_id;
-    }
-    if (last_message_id < d->last_read_outbox_message_id &&
-        d->last_read_outbox_message_id < d->last_new_message_id.get_next_server_message_id()) {
-      last_message_id = d->last_read_outbox_message_id;
-    }
-  }
-
-  d->last_assigned_message_id = last_message_id.get_next_message_id(type);
-  if (d->last_assigned_message_id > MessageId::max()) {
-    LOG(FATAL) << "Force restart because of message_id overflow: " << d->last_assigned_message_id;
-  }
-  CHECK(d->last_assigned_message_id.is_valid());
-  if (d->last_assigned_message_id.get_prev_server_message_id() != last_message_id.get_prev_server_message_id()) {
-    d->had_yet_unsent_message_id_overflow = true;
-  }
-  return d->last_assigned_message_id;
-}
-
-MessageId MessagesManager::get_next_yet_unsent_message_id(Dialog *d) const {
-  return get_next_message_id(d, MessageType::YetUnsent);
-}
-
-MessageId MessagesManager::get_next_local_message_id(Dialog *d) const {
-  return get_next_message_id(d, MessageType::Local);
-}
-
-MessageId MessagesManager::get_next_yet_unsent_scheduled_message_id(Dialog *d, int32 date) {
-  CHECK(date > 0);
-
-  auto *scheduled_messages = add_dialog_scheduled_messages(d);
-  MessageId message_id(ScheduledServerMessageId(1), date);
-  for (const auto &it : d->scheduled_messages->scheduled_messages_) {
-    if (it.first.get_scheduled_message_date() == date && it.first > message_id) {
-      message_id = it.first;
-    }
-  };
-
-  auto &last_assigned_message_id = scheduled_messages->last_assigned_scheduled_message_id_[date];
-  if (last_assigned_message_id != MessageId() && last_assigned_message_id > message_id) {
-    message_id = last_assigned_message_id;
-  }
-
-  last_assigned_message_id = message_id.get_next_message_id(MessageType::YetUnsent);
-  return last_assigned_message_id;
-}
-
-void MessagesManager::fail_send_message(MessageFullId message_full_id, int32 error_code, const string &error_message) {
-  if (error_code <= 0) {
-    error_code = 500;
-  }
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  MessageId old_message_id = message_full_id.get_message_id();
-  CHECK(old_message_id.is_valid() || old_message_id.is_valid_scheduled());
-  CHECK(old_message_id.is_yet_unsent());
-
-  // must be called before delete_message
-  update_reply_to_message_id(dialog_id, old_message_id, MessageId(), false, "fail_send_message");
-
-  bool need_update_dialog_pos = false;
-  being_readded_message_id_ = message_full_id;
-  auto message = delete_message(d, old_message_id, false, &need_update_dialog_pos, "fail send message");
-  if (message == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel
-    // don't need to send update to the user, because the message has already been deleted
-    // and there is nothing to be deleted from the server
-    being_readded_message_id_ = MessageFullId();
-    return;
-  }
-
-  MessageId new_message_id = old_message_id.get_next_message_id(MessageType::Local);  // trying to keep message position
-  if (!old_message_id.is_scheduled()) {
-    if (get_message_force(d, new_message_id, "fail_send_message") != nullptr || is_deleted_message(d, new_message_id) ||
-        new_message_id <= d->last_clear_history_message_id) {
-      new_message_id = get_next_local_message_id(d);
-      while (get_message_force(d, new_message_id, "fail_send_message") != nullptr) {
-        new_message_id = new_message_id.get_next_message_id(MessageType::Local);
-      }
-    }
-    if (new_message_id > d->last_assigned_message_id) {
-      d->last_assigned_message_id = new_message_id;
-    }
-  } else {
-    while (get_message_force(d, new_message_id, "fail_send_message") != nullptr ||
-           is_deleted_message(d, new_message_id)) {
-      new_message_id = new_message_id.get_next_message_id(MessageType::Local);
-    }
-  }
-
-  message->message_id = new_message_id;
-  if (old_message_id.is_scheduled()) {
-    CHECK(message->message_id.is_valid_scheduled());
-  } else {
-    CHECK(message->message_id.is_valid());
-  }
-  if (message->forward_info == nullptr && message->view_count == 1) {
-    message->view_count = 0;
-  }
-  message->is_failed_to_send = true;
-  message->send_error_code = error_code;
-  message->send_error_message = error_message;
-  message->try_resend_at = 0.0;
-  auto retry_after = Global::get_retry_after(error_code, error_message);
-  if (retry_after > 0) {
-    message->try_resend_at = Time::now() + retry_after;
-  }
-  update_failed_to_send_message_content(td_, message->content);
-  message->file_upload_ids = {};
-  message->thumbnail_file_upload_ids = {};
-  if (message->paid_message_star_count > 0) {
-    td_->star_manager_->add_pending_owned_star_count(message->paid_message_star_count, false);
-  }
-
-  bool need_update = false;
-  Message *m = add_message_to_dialog(d, std::move(message), false, true, &need_update, &need_update_dialog_pos,
-                                     "fail_send_message");
-  LOG_CHECK(m != nullptr) << "Failed to add failed to send " << new_message_id << " to " << dialog_id << " due to "
-                          << debug_add_message_to_dialog_fail_reason_;
-  if (!m->message_id.is_scheduled()) {
-    // add_message_to_dialog will not update counts, because need_update == false
-    update_message_count_by_index(d, +1, m);
-    update_reply_count_by_message(d, +1, m);  // no-op because the message isn't server
-  }
-  register_new_local_message_id(d, m);
-
-  LOG(INFO) << "Send updateMessageSendFailed for " << message_full_id;
-  if (!td_->auth_manager_->is_bot()) {
-    yet_unsent_message_full_id_to_persistent_message_id_.emplace({dialog_id, old_message_id}, m->message_id);
-  }
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateMessageSendFailed>(
-                   get_message_object(dialog_id, m, "fail_send_message"), old_message_id.get(),
-                   td_api::make_object<td_api::error>(error_code, error_message)));
-  if (need_update_dialog_pos) {
-    send_update_chat_last_message(d, "fail_send_message");
-  }
-  being_readded_message_id_ = MessageFullId();
-}
-
-void MessagesManager::fail_send_message(MessageFullId message_full_id, Status error) {
-  fail_send_message(message_full_id, error.code(), error.message().str());
-}
-
-void MessagesManager::fail_edit_message_media(MessageFullId message_full_id, Status &&error) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  MessageId message_id = message_full_id.get_message_id();
-  CHECK(message_id.is_any_server());
-
-  auto m = get_message(d, message_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user or sent to inaccessible channel
-    return;
-  }
-  auto edited_message = get_edited_message(dialog_id, message_id);
-  if (edited_message == nullptr) {
-    return;
-  }
-  CHECK(edited_message->content_ != nullptr);
-  edited_message->promise_.set_error(std::move(error));
-  cancel_edit_message_media(dialog_id, m, "Failed to edit message. MUST BE IGNORED");
-}
-
-void MessagesManager::on_update_dialog_draft_message(DialogId dialog_id, MessageId top_thread_message_id,
-                                                     tl_object_ptr<telegram_api::DraftMessage> &&draft_message,
-                                                     bool force) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive update of draft message in invalid " << dialog_id;
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    if (draft_message != nullptr && draft_message->get_id() != telegram_api::draftMessageEmpty::ID) {
-      LOG(ERROR) << "Receive update of draft message in " << dialog_id;
-    }
-    return;
-  }
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_draft_message");
-  if (d == nullptr) {
-    LOG(INFO) << "Ignore update chat draft in unknown " << dialog_id;
-    if (draft_message != nullptr && draft_message->get_id() != telegram_api::draftMessageEmpty::ID) {
-      if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-        LOG(ERROR) << "Have no read access to " << dialog_id << " to repair chat draft message";
-      } else {
-        send_get_dialog_query(dialog_id, Auto(), 0, "on_update_dialog_draft_message");
-      }
-    }
-    return;
-  }
-  if (top_thread_message_id.is_valid()) {
-    // TODO update thread message draft
-    return;
-  }
-
-  if (!force && draft_message != nullptr && draft_message->get_id() == telegram_api::draftMessage::ID) {
-    auto *input_reply_to = static_cast<const telegram_api::draftMessage *>(draft_message.get())->reply_to_.get();
-    if (input_reply_to != nullptr) {
-      InputDialogId input_dialog_id;
-      switch (input_reply_to->get_id()) {
-        case telegram_api::inputReplyToStory::ID: {
-          auto reply_to = static_cast<const telegram_api::inputReplyToStory *>(input_reply_to);
-          input_dialog_id = InputDialogId(reply_to->peer_);
-          break;
-        }
-        case telegram_api::inputReplyToMessage::ID: {
-          auto reply_to = static_cast<const telegram_api::inputReplyToMessage *>(input_reply_to);
-          if (reply_to->reply_to_peer_id_ != nullptr) {
-            input_dialog_id = InputDialogId(reply_to->reply_to_peer_id_);
-          }
-          break;
-        }
-        default:
-          UNREACHABLE();
-      }
-      auto reply_in_dialog_id = input_dialog_id.get_dialog_id();
-      if (reply_in_dialog_id.is_valid() && !have_dialog_force(reply_in_dialog_id, "on_update_dialog_draft_message")) {
-        td_->dialog_filter_manager_->load_input_dialog(
-            input_dialog_id, [actor_id = actor_id(this), dialog_id, top_thread_message_id,
-                              draft_message = std::move(draft_message)](Unit) mutable {
-              send_closure(actor_id, &MessagesManager::on_update_dialog_draft_message, dialog_id, top_thread_message_id,
-                           std::move(draft_message), true);
-            });
-        return;
-      }
-    }
-  }
-  update_dialog_draft_message(d, get_draft_message(td_, std::move(draft_message)), true, true);
-}
-
-bool MessagesManager::update_dialog_draft_message(Dialog *d, unique_ptr<DraftMessage> &&draft_message, bool from_update,
-                                                  bool need_update_dialog_pos) {
-  CHECK(d != nullptr);
-  if (!td_->auth_manager_->is_bot() && need_update_draft_message(d->draft_message, draft_message, from_update)) {
-    d->draft_message = std::move(draft_message);
-    if (need_update_dialog_pos) {
-      update_dialog_pos(d, "update_dialog_draft_message", false);
-    }
-    on_dialog_updated(d->dialog_id, "update_dialog_draft_message");
-    send_update_chat_draft_message(d);
-    return true;
-  }
-  return false;
-}
-
-void MessagesManager::clear_dialog_draft_by_sent_message(Dialog *d, const Message *m, bool need_update_dialog_pos) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (!m->clear_draft) {
-    const DraftMessage *draft_message = nullptr;
-    if (m->initial_top_thread_message_id.is_valid()) {
-      auto top_m = get_message_force(d, m->initial_top_thread_message_id, "clear_dialog_draft_by_sent_message");
-      if (top_m != nullptr) {
-        draft_message = top_m->thread_draft_message.get();
-      }
-    } else {
-      draft_message = d->draft_message.get();
-    }
-    if (draft_message == nullptr || !draft_message->need_clear_local(m->content->get_type())) {
-      return;
-    }
-  }
-  if (m->initial_top_thread_message_id.is_valid()) {
-    set_dialog_draft_message(d->dialog_id, m->initial_top_thread_message_id, nullptr).ignore();
-  } else {
-    update_dialog_draft_message(d, nullptr, false, need_update_dialog_pos);
-  }
-}
-
-void MessagesManager::on_update_dialog_is_pinned(FolderId folder_id, DialogId dialog_id, bool is_pinned) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive pin of invalid " << dialog_id;
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_is_pinned");
-  if (d == nullptr) {
-    LOG(INFO) << "Can't apply updateDialogPinned in " << folder_id << " with unknown " << dialog_id;
-    on_update_pinned_dialogs(folder_id);
-    return;
-  }
-  if (d->order == DEFAULT_ORDER) {
-    // the chat can't be pinned or is already unpinned
-    // don't change it's folder_id
-    LOG(INFO) << "Can't apply updateDialogPinned in " << folder_id << " with " << dialog_id;
-    return;
-  }
-
-  auto *list = get_dialog_list(DialogListId(folder_id));
-  CHECK(list != nullptr);
-  if (!list->are_pinned_dialogs_inited_) {
-    return;
-  }
-
-  set_dialog_folder_id(d, folder_id);
-  set_dialog_is_pinned(DialogListId(folder_id), d, is_pinned);
-}
-
-void MessagesManager::on_update_pinned_dialogs(FolderId folder_id) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  // TODO log event + delete_log_event_promise
-
-  auto *list = get_dialog_list(DialogListId(folder_id));
-  if (list == nullptr || !list->are_pinned_dialogs_inited_) {
-    return;
-  }
-  // preload all pinned dialogs
-  int32 limit = narrow_cast<int32>(list->pinned_dialogs_.size()) +
-                (folder_id == FolderId::main() && sponsored_dialog_id_.is_valid() ? 1 : 0);
-  get_dialogs_from_list(DialogListId(folder_id), limit, Auto());
-  reload_pinned_dialogs(DialogListId(folder_id), Auto());
-}
-
-void MessagesManager::on_update_dialog_view_as_topics(Dialog *d, bool old_view_as_topics) {
-  auto new_view_as_topics = get_dialog_view_as_topics(d);
-  if (old_view_as_topics == new_view_as_topics) {
-    return;
-  }
-
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in on_update_dialog_view_as_topics";
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatViewAsTopics>(
-                   get_chat_id_object(d->dialog_id, "updateChatViewAsTopics"), new_view_as_topics));
-
-  if (d->dialog_id != td_->dialog_manager_->get_my_dialog_id() && d->draft_message != nullptr &&
-      can_send_message(d->dialog_id).is_ok()) {
-    // need_hide_dialog_draft_message has changed and there is draft message
-    send_update_chat_draft_message(d);
-  }
-
-  // TODO update unread counters in chat lists
-}
-
-void MessagesManager::on_update_dialog_is_forum(DialogId dialog_id, bool is_forum) {
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive is_forum for invalid " << dialog_id;
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_is_forum");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-  set_dialog_is_forum(d, is_forum);
-}
-
-void MessagesManager::set_dialog_is_forum(Dialog *d, bool is_forum) {
-  CHECK(d != nullptr);
-  if (d->is_forum == is_forum) {
-    return;
-  }
-  auto old_view_as_topics = get_dialog_view_as_topics(d);
-  d->is_forum = is_forum;
-  on_dialog_updated(d->dialog_id, "set_dialog_is_forum");
-
-  LOG(INFO) << "Set " << d->dialog_id << " is_forum to " << is_forum;
-  on_update_dialog_view_as_topics(d, old_view_as_topics);
-}
-
-void MessagesManager::on_update_dialog_view_as_messages(DialogId dialog_id, bool view_as_messages) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive view_as_messages for invalid " << dialog_id;
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_view_as_messages");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-  set_dialog_view_as_messages(d, view_as_messages, "on_update_dialog_view_as_messages");
-}
-
-void MessagesManager::set_dialog_view_as_messages(Dialog *d, bool view_as_messages, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  CHECK(d != nullptr);
-  if (d->view_as_messages == view_as_messages) {
-    if (!d->is_view_as_messages_inited) {
-      d->is_view_as_messages_inited = true;
-      on_dialog_updated(d->dialog_id, source);
-    }
-    return;
-  }
-  auto old_view_as_topics = get_dialog_view_as_topics(d);
-  d->view_as_messages = view_as_messages;
-  d->is_view_as_messages_inited = true;
-  on_dialog_updated(d->dialog_id, source);
-
-  LOG(INFO) << "Set " << d->dialog_id << " view_as_messages to " << view_as_messages << " from " << source;
-  on_update_dialog_view_as_topics(d, old_view_as_topics);
-}
-
-void MessagesManager::on_update_dialog_is_marked_as_unread(DialogId dialog_id, bool is_marked_as_unread) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive marking as unread of invalid " << dialog_id;
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_is_marked_as_unread");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  if (is_marked_as_unread == d->is_marked_as_unread) {
-    return;
-  }
-
-  set_dialog_is_marked_as_unread(d, is_marked_as_unread);
-}
-
-void MessagesManager::set_dialog_is_marked_as_unread(Dialog *d, bool is_marked_as_unread) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  CHECK(d != nullptr);
-  CHECK(d->is_marked_as_unread != is_marked_as_unread);
-  d->is_marked_as_unread = is_marked_as_unread;
-  on_dialog_updated(d->dialog_id, "set_dialog_is_marked_as_unread");
-
-  LOG(INFO) << "Set " << d->dialog_id << " is marked as unread to " << is_marked_as_unread;
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in set_dialog_is_marked_as_unread";
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatIsMarkedAsUnread>(
-                   get_chat_id_object(d->dialog_id, "updateChatIsMarkedAsUnread"), is_marked_as_unread));
-
-  if (d->server_unread_count + d->local_unread_count == 0 && need_unread_counter(d->order)) {
-    int32 delta = d->is_marked_as_unread ? 1 : -1;
-    for (auto &list : get_dialog_lists(d)) {
-      if (list.is_dialog_unread_count_inited_) {
-        list.unread_dialog_total_count_ += delta;
-        list.unread_dialog_marked_count_ += delta;
-        if (is_dialog_muted(d)) {
-          list.unread_dialog_muted_count_ += delta;
-          list.unread_dialog_muted_marked_count_ += delta;
-        }
-        send_update_unread_chat_count(list, d->dialog_id, true, "set_dialog_is_marked_as_unread");
-      }
-    }
-
-    if (td_->dialog_filter_manager_->have_dialog_filters()) {
-      update_dialog_lists(d, get_dialog_positions(d), true, false, "set_dialog_is_marked_as_unread");
-    }
-  }
-}
-
-void MessagesManager::on_update_dialog_is_translatable(DialogId dialog_id, bool is_translatable) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive marking as unread of invalid " << dialog_id;
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_is_translatable");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  if (is_translatable == d->is_translatable) {
-    return;
-  }
-
-  set_dialog_is_translatable(d, is_translatable);
-}
-
-void MessagesManager::update_is_translatable(bool new_is_premium) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  dialogs_.foreach([&](const DialogId &dialog_id, const unique_ptr<Dialog> &dialog) {
-    if (dialog->is_translatable) {
-      send_closure(G()->td(), &Td::send_update,
-                   td_api::make_object<td_api::updateChatIsTranslatable>(
-                       get_chat_id_object(dialog_id, "updateChatIsTranslatable"), new_is_premium));
-    }
-  });
-}
-
-void MessagesManager::set_dialog_is_translatable(Dialog *d, bool is_translatable) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  CHECK(d != nullptr);
-  CHECK(d->is_translatable != is_translatable);
-  d->is_translatable = is_translatable;
-  on_dialog_updated(d->dialog_id, "set_dialog_is_translatable");
-
-  LOG(INFO) << "Set " << d->dialog_id << " is translatable to " << is_translatable;
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in set_dialog_is_translatable";
-  bool is_premium = td_->option_manager_->get_option_boolean("is_premium");
-  if (is_premium) {
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatIsTranslatable>(
-                     get_chat_id_object(d->dialog_id, "updateChatIsTranslatable"), is_translatable));
-  }
-}
-
-void MessagesManager::on_update_dialog_is_blocked(DialogId dialog_id, bool is_blocked, bool is_blocked_for_stories) {
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive pinned message in invalid " << dialog_id;
-    return;
-  }
-  if (dialog_id.get_type() == DialogType::User) {
-    td_->user_manager_->on_update_user_is_blocked(dialog_id.get_user_id(), is_blocked, is_blocked_for_stories);
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_is_blocked");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  if (d->is_blocked == is_blocked && d->is_blocked_for_stories == is_blocked_for_stories) {
-    if (!d->is_is_blocked_for_stories_inited) {
-      CHECK(!is_blocked_for_stories);
-      d->is_is_blocked_inited = true;
-      d->is_is_blocked_for_stories_inited = true;
-      on_dialog_updated(dialog_id, "on_update_dialog_is_blocked");
-    }
-    return;
-  }
-
-  set_dialog_is_blocked(d, is_blocked, is_blocked_for_stories);
-}
-
-void MessagesManager::set_dialog_is_blocked(Dialog *d, bool is_blocked, bool is_blocked_for_stories) {
-  CHECK(d != nullptr);
-  CHECK(d->is_blocked != is_blocked || d->is_blocked_for_stories != is_blocked_for_stories);
-  d->is_blocked = is_blocked;
-  d->is_blocked_for_stories = is_blocked_for_stories;
-  d->is_is_blocked_inited = true;
-  d->is_is_blocked_for_stories_inited = true;
-  on_dialog_updated(d->dialog_id, "set_dialog_is_blocked");
-
-  LOG(INFO) << "Set " << d->dialog_id << " is_blocked to " << is_blocked << '/' << is_blocked_for_stories;
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in set_dialog_is_blocked";
-  auto block_list_id = BlockListId(d->is_blocked, d->is_blocked_for_stories);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatBlockList>(get_chat_id_object(d->dialog_id, "updateChatBlockList"),
-                                                                block_list_id.get_block_list_object()));
-
-  if (d->dialog_id.get_type() == DialogType::User) {
-    td_->user_manager_->on_update_user_is_blocked(d->dialog_id.get_user_id(), is_blocked, is_blocked_for_stories);
-
-    if (d->know_action_bar) {
-      if (is_blocked) {
-        if (d->action_bar != nullptr) {
-          d->action_bar = nullptr;
-          send_update_chat_action_bar(d);
-        }
-      } else {
-        repair_dialog_action_bar(d, "on_dialog_user_is_blocked_updated");
-      }
-    }
-
-    td_->user_manager_->for_each_secret_chat_with_user(
-        d->dialog_id.get_user_id(), [this, is_blocked, is_blocked_for_stories](SecretChatId secret_chat_id) {
-          DialogId dialog_id(secret_chat_id);
-          auto d = get_dialog(dialog_id);  // must not create the dialog
-          if (d != nullptr && d->is_update_new_chat_sent &&
-              (d->is_blocked != is_blocked || d->is_blocked_for_stories != is_blocked_for_stories)) {
-            set_dialog_is_blocked(d, is_blocked, is_blocked_for_stories);
-          }
-        });
-  }
-}
-
-void MessagesManager::on_update_dialog_business_bot_is_paused(DialogId dialog_id, bool is_paused) {
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_business_bot_is_paused");
-  CHECK(d != nullptr);
-  if (d->business_bot_manage_bar != nullptr && d->business_bot_manage_bar->set_business_bot_is_paused(is_paused)) {
-    send_update_chat_business_bot_manage_bar(d);
-  }
-}
-
-void MessagesManager::on_update_dialog_business_bot_removed(DialogId dialog_id) {
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_business_bot_removed");
-  CHECK(d != nullptr);
-  if (d->business_bot_manage_bar != nullptr) {
-    d->business_bot_manage_bar = nullptr;
-    send_update_chat_business_bot_manage_bar(d);
-  }
-}
-
-void MessagesManager::on_update_dialog_last_pinned_message_id(DialogId dialog_id, MessageId pinned_message_id) {
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive pinned message in invalid " << dialog_id;
-    return;
-  }
-  if (!pinned_message_id.is_valid() && pinned_message_id != MessageId()) {
-    LOG(ERROR) << "Receive as pinned message " << pinned_message_id;
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_last_pinned_message_id");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  set_dialog_last_pinned_message_id(d, pinned_message_id);
-}
-
-void MessagesManager::set_dialog_last_pinned_message_id(Dialog *d, MessageId pinned_message_id) {
-  CHECK(d != nullptr);
-  Message *m = get_message_force(d, pinned_message_id, "set_dialog_last_pinned_message_id");
-  if (m != nullptr && update_message_is_pinned(d, m, true, "set_dialog_last_pinned_message_id")) {
-    on_message_changed(d, m, true, "set_dialog_last_pinned_message_id");
-  }
-
-  if (d->is_last_pinned_message_id_inited && d->last_pinned_message_id == pinned_message_id) {
-    return;
-  }
-  d->last_pinned_message_id = pinned_message_id;
-  d->is_last_pinned_message_id_inited = true;
-  on_dialog_updated(d->dialog_id, "set_dialog_last_pinned_message_id");
-
-  LOG(INFO) << "Set " << d->dialog_id << " pinned message to " << pinned_message_id;
-}
-
-void MessagesManager::drop_dialog_last_pinned_message_id(Dialog *d) {
-  d->last_pinned_message_id = MessageId();
-  d->is_last_pinned_message_id_inited = false;
-  on_dialog_updated(d->dialog_id, "drop_dialog_last_pinned_message_id");
-
-  LOG(INFO) << "Drop " << d->dialog_id << " pinned message";
-
-  create_actor<SleepActor>("ReloadDialogFullInfoActor", 1.0,
-                           PromiseCreator::lambda([actor_id = G()->dialog_manager(), dialog_id = d->dialog_id](Unit) {
-                             send_closure(actor_id, &DialogManager::reload_dialog_info_full, dialog_id,
-                                          "drop_dialog_last_pinned_message_id");
-                           }))
-      .release();
-}
-
-void MessagesManager::on_update_dialog_background(DialogId dialog_id,
-                                                  telegram_api::object_ptr<telegram_api::WallPaper> &&wallpaper) {
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive background in invalid " << dialog_id;
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_background");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  set_dialog_background(d, BackgroundInfo(td_, std::move(wallpaper), true));
-}
-
-void MessagesManager::set_dialog_background(Dialog *d, BackgroundInfo &&background_info) {
-  CHECK(d != nullptr);
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  bool is_changed = d->background_info != background_info;
-  if (!is_changed && d->is_background_inited) {
-    return;
-  }
-  d->background_info = std::move(background_info);
-  d->is_background_inited = true;
-
-  if (is_changed) {
-    LOG(INFO) << "Set " << d->dialog_id << " background to " << d->background_info;
-    send_update_chat_background(d);
-  } else {
-    on_dialog_updated(d->dialog_id, "set_dialog_background");
-  }
-}
-
-void MessagesManager::on_update_dialog_theme_name(DialogId dialog_id, string theme_name) {
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive theme in invalid " << dialog_id;
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_theme_name");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  set_dialog_theme_name(d, std::move(theme_name));
-}
-
-void MessagesManager::set_dialog_theme_name(Dialog *d, string theme_name) {
-  CHECK(d != nullptr);
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  bool is_changed = d->theme_name != theme_name;
-  if (!is_changed && d->is_theme_name_inited) {
-    return;
-  }
-  d->theme_name = std::move(theme_name);
-  d->is_theme_name_inited = true;
-
-  if (is_changed) {
-    LOG(INFO) << "Set " << d->dialog_id << " theme to \"" << d->theme_name << '"';
-    send_update_chat_theme(d);
-  } else {
-    on_dialog_updated(d->dialog_id, "set_dialog_theme_name");
-  }
-}
-
-void MessagesManager::drop_dialog_pending_join_requests(DialogId dialog_id) {
-  CHECK(dialog_id.is_valid());
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  auto d = get_dialog(dialog_id);  // called from update_chat/channel, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    set_dialog_pending_join_requests(d, 0, {});
-  }
-}
-
-void MessagesManager::on_update_dialog_pending_join_requests(DialogId dialog_id, int32 pending_join_request_count,
-                                                             vector<int64> pending_requesters) {
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive pending join request count in invalid " << dialog_id;
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_pending_join_request_count");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  set_dialog_pending_join_requests(d, pending_join_request_count, UserId::get_user_ids(pending_requesters, true));
-}
-
-void MessagesManager::set_dialog_pending_join_requests(Dialog *d, int32 pending_join_request_count,
-                                                       vector<UserId> pending_join_request_user_ids) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  td_->dialog_participant_manager_->fix_pending_join_requests(d->dialog_id, pending_join_request_count,
-                                                              pending_join_request_user_ids);
-  if (d->pending_join_request_count == pending_join_request_count &&
-      d->pending_join_request_user_ids == pending_join_request_user_ids) {
-    return;
-  }
-  d->pending_join_request_count = pending_join_request_count;
-  d->pending_join_request_user_ids = std::move(pending_join_request_user_ids);
-  send_update_chat_pending_join_requests(d);
-}
-
-void MessagesManager::repair_dialog_scheduled_messages(Dialog *d) {
-  if (td_->auth_manager_->is_bot() || d->dialog_id.get_type() == DialogType::SecretChat) {
-    return;
-  }
-
-  if (d->last_repair_scheduled_messages_generation == scheduled_messages_sync_generation_) {
-    return;
-  }
-  d->last_repair_scheduled_messages_generation = scheduled_messages_sync_generation_;
-
-  // TODO create log event
-  auto dialog_id = d->dialog_id;
-  LOG(INFO) << "Repair scheduled messages in " << dialog_id << " with generation "
-            << d->last_repair_scheduled_messages_generation;
-  get_dialog_scheduled_messages(dialog_id, false, true,
-                                PromiseCreator::lambda([actor_id = actor_id(this), dialog_id](Unit) {
-                                  send_closure(G()->messages_manager(), &MessagesManager::get_dialog_scheduled_messages,
-                                               dialog_id, true, true, Promise<Unit>());
-                                }));
-}
-
-void MessagesManager::on_update_dialog_has_scheduled_server_messages(DialogId dialog_id,
-                                                                     bool has_scheduled_server_messages) {
-  CHECK(dialog_id.is_valid());
-  if (td_->auth_manager_->is_bot() || dialog_id.get_type() == DialogType::SecretChat) {
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_has_scheduled_server_messages");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  LOG(INFO) << "Receive has_scheduled_server_messages = " << has_scheduled_server_messages << " in " << dialog_id;
-  if (d->has_scheduled_server_messages != has_scheduled_server_messages) {
-    set_dialog_has_scheduled_server_messages(d, has_scheduled_server_messages);
-  } else if (has_scheduled_server_messages !=
-             (d->has_scheduled_database_messages || have_dialog_scheduled_messages_in_memory(d))) {
-    repair_dialog_scheduled_messages(d);
-  }
-}
-
-void MessagesManager::set_dialog_has_scheduled_server_messages(Dialog *d, bool has_scheduled_server_messages) {
-  CHECK(d != nullptr);
-  CHECK(d->has_scheduled_server_messages != has_scheduled_server_messages);
-  d->has_scheduled_server_messages = has_scheduled_server_messages;
-  repair_dialog_scheduled_messages(d);
-  on_dialog_updated(d->dialog_id, "set_dialog_has_scheduled_server_messages");
-
-  LOG(INFO) << "Set " << d->dialog_id << " has_scheduled_server_messages to " << has_scheduled_server_messages;
-
-  send_update_chat_has_scheduled_messages(d, false);
-}
-
-void MessagesManager::set_dialog_has_scheduled_database_messages(DialogId dialog_id,
-                                                                 bool has_scheduled_database_messages) {
-  if (G()->close_flag()) {
-    return;
-  }
-  return set_dialog_has_scheduled_database_messages_impl(get_dialog(dialog_id), has_scheduled_database_messages);
-}
-
-void MessagesManager::set_dialog_has_scheduled_database_messages_impl(Dialog *d, bool has_scheduled_database_messages) {
-  CHECK(d != nullptr);
-  if (d->has_scheduled_database_messages == has_scheduled_database_messages) {
-    return;
-  }
-
-  if (d->has_scheduled_database_messages && have_dialog_scheduled_messages_in_memory(d) &&
-      !d->scheduled_messages->scheduled_messages_.begin()->first.is_yet_unsent()) {
-    // to prevent race between add_message_to_database and check of has_scheduled_database_messages
-    return;
-  }
-
-  CHECK(G()->use_message_database());
-
-  d->has_scheduled_database_messages = has_scheduled_database_messages;
-  on_dialog_updated(d->dialog_id, "set_dialog_has_scheduled_database_messages");
-}
-
-void MessagesManager::on_update_dialog_folder_id(DialogId dialog_id, FolderId folder_id) {
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_folder_id");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  set_dialog_folder_id(d, folder_id);
-}
-
-void MessagesManager::set_dialog_folder_id(Dialog *d, FolderId folder_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-
-  if (d->folder_id == folder_id) {
-    if (!d->is_folder_id_inited) {
-      LOG(INFO) << "Folder of " << d->dialog_id << " is still " << folder_id;
-      do_set_dialog_folder_id(d, folder_id);
-    }
-    return;
-  }
-
-  LOG(INFO) << "Change " << d->dialog_id << " folder from " << d->folder_id << " to " << folder_id;
-
-  auto dialog_positions = get_dialog_positions(d);
-
-  if (get_dialog_pinned_order(DialogListId(d->folder_id), d->dialog_id) != DEFAULT_ORDER) {
-    set_dialog_is_pinned(DialogListId(d->folder_id), d, false, false);
-  }
-
-  DialogDate dialog_date(d->order, d->dialog_id);
-  if (get_dialog_folder(d->folder_id)->ordered_dialogs_.erase(dialog_date) == 0) {
-    LOG_IF(ERROR, d->order != DEFAULT_ORDER) << d->dialog_id << " not found in the chat list";
-  }
-
-  do_set_dialog_folder_id(d, folder_id);
-
-  get_dialog_folder(d->folder_id)->ordered_dialogs_.insert(dialog_date);
-
-  update_dialog_lists(d, std::move(dialog_positions), true, false, "set_dialog_folder_id");
-}
-
-void MessagesManager::do_set_dialog_folder_id(Dialog *d, FolderId folder_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  bool is_changed = d->folder_id != folder_id;
-  if (!is_changed && d->is_folder_id_inited) {
-    return;
-  }
-  d->is_folder_id_inited = true;
-
-  if (is_changed) {
-    d->folder_id = folder_id;
-    if (d->dialog_id.get_type() == DialogType::SecretChat) {
-      // need to change action bar only for the secret chat and keep unarchive for the main chat
-      auto user_id = td_->user_manager_->get_secret_chat_user_id(d->dialog_id.get_secret_chat_id());
-      if (d->is_update_new_chat_sent && user_id.is_valid()) {
-        const Dialog *user_d = get_dialog(DialogId(user_id));
-        if (user_d != nullptr && user_d->action_bar != nullptr && user_d->action_bar->can_unarchive()) {
-          send_closure(G()->td(), &Td::send_update,
-                       td_api::make_object<td_api::updateChatActionBar>(
-                           get_chat_id_object(d->dialog_id, "updateChatActionBar"), get_chat_action_bar_object(d)));
-        }
-      }
-    } else if (folder_id != FolderId::archive() && d->action_bar != nullptr && d->action_bar->on_dialog_unarchived()) {
-      send_update_chat_action_bar(d);
-    }
-  }
-
-  on_dialog_updated(d->dialog_id, "do_set_dialog_folder_id");
-}
-
-void MessagesManager::on_update_dialog_group_call(DialogId dialog_id, bool has_active_group_call,
-                                                  bool is_group_call_empty, const char *source, bool force) {
-  LOG(INFO) << "Update voice chat in " << dialog_id << " with has_active_voice_chat = " << has_active_group_call
-            << " and is_voice_chat_empty = " << is_group_call_empty << " from " << source;
-  CHECK(dialog_id.is_valid());
-  Dialog *d = get_dialog(dialog_id);  // must not create the Dialog, because it is called from on_get_chat
-  if (d == nullptr) {
-    LOG(INFO) << "Can't find " << dialog_id;
-    pending_dialog_group_call_updates_[dialog_id] = {has_active_group_call, is_group_call_empty};
-    return;
-  }
-
-  if (!has_active_group_call) {
-    is_group_call_empty = false;
-  }
-  if (d->active_group_call_id.is_valid() && has_active_group_call && is_group_call_empty &&
-      (td_->group_call_manager_->is_group_call_being_joined(d->active_group_call_id) ||
-       td_->group_call_manager_->is_group_call_joined(d->active_group_call_id))) {
-    LOG(INFO) << "Fix is_group_call_empty to false";
-    is_group_call_empty = false;
-  }
-  if (d->has_active_group_call == has_active_group_call && d->is_group_call_empty == is_group_call_empty) {
-    return;
-  }
-  if (!force && d->active_group_call_id.is_valid() && has_active_group_call &&
-      td_->group_call_manager_->is_group_call_being_joined(d->active_group_call_id)) {
-    LOG(INFO) << "Ignore update in a being joined group call";
-    return;
-  }
-
-  if (d->has_active_group_call && !has_active_group_call && d->active_group_call_id.is_valid()) {
-    d->active_group_call_id = InputGroupCallId();
-    d->has_active_group_call = false;
-    d->is_group_call_empty = false;
-    send_update_chat_video_chat(d);
-  } else if (d->has_active_group_call && has_active_group_call) {
-    d->is_group_call_empty = is_group_call_empty;
-    send_update_chat_video_chat(d);
-  } else {
-    d->has_active_group_call = has_active_group_call;
-    d->is_group_call_empty = is_group_call_empty;
-    on_dialog_updated(dialog_id, "on_update_dialog_group_call");
-
-    if (has_active_group_call && !d->active_group_call_id.is_valid() && !td_->auth_manager_->is_bot()) {
-      repair_dialog_active_group_call_id(dialog_id);
-    }
-  }
-}
-
-void MessagesManager::on_update_dialog_group_call_id(DialogId dialog_id, InputGroupCallId input_group_call_id) {
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_group_call_id");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  if (d->active_group_call_id != input_group_call_id) {
-    LOG(INFO) << "Update active group call in " << dialog_id << " to " << input_group_call_id;
-    d->active_group_call_id = input_group_call_id;
-    bool has_active_group_call = input_group_call_id.is_valid();
-    if (has_active_group_call != d->has_active_group_call) {
-      d->has_active_group_call = has_active_group_call;
-      if (!has_active_group_call) {
-        d->is_group_call_empty = false;
-      }
-    }
-    send_update_chat_video_chat(d);
-  }
-}
-
-void MessagesManager::on_update_dialog_default_join_group_call_as_dialog_id(DialogId dialog_id,
-                                                                            DialogId default_join_as_dialog_id,
-                                                                            bool force) {
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_default_join_group_call_as_dialog_id");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  if (!force && d->active_group_call_id.is_valid() &&
-      td_->group_call_manager_->is_group_call_being_joined(d->active_group_call_id)) {
-    LOG(INFO) << "Ignore default_join_as_dialog_id update in a being joined group call";
-    return;
-  }
-
-  if (default_join_as_dialog_id.is_valid()) {
-    if (default_join_as_dialog_id.get_type() != DialogType::User) {
-      force_create_dialog(default_join_as_dialog_id, "on_update_dialog_default_join_group_call_as_dialog_id");
-    } else if (!td_->user_manager_->have_user_force(default_join_as_dialog_id.get_user_id(),
-                                                    "on_update_dialog_default_join_group_call_as_dialog_id") ||
-               default_join_as_dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-      default_join_as_dialog_id = DialogId();
-    }
-  }
-
-  if (d->default_join_group_call_as_dialog_id != default_join_as_dialog_id) {
-    d->default_join_group_call_as_dialog_id = default_join_as_dialog_id;
-    send_update_chat_video_chat(d);
-  }
-}
-
-void MessagesManager::on_update_dialog_default_send_message_as_dialog_id(DialogId dialog_id,
-                                                                         DialogId default_send_as_dialog_id,
-                                                                         bool force) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-  auto dialog_type = dialog_id.get_type();
-  if (dialog_type != DialogType::Channel) {
-    if (default_send_as_dialog_id != DialogId()) {
-      LOG(ERROR) << "Receive message sender " << default_send_as_dialog_id << " in " << dialog_id;
-    }
-    return;
-  }
-
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_default_send_message_as_dialog_id");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-
-  if (!force) {
-    // TODO ignore update if have being sent messages
-  }
-
-  if (default_send_as_dialog_id.is_valid()) {
-    if (default_send_as_dialog_id.get_type() != DialogType::User) {
-      force_create_dialog(default_send_as_dialog_id, "on_update_dialog_default_send_message_as_dialog_id");
-    } else if (!td_->user_manager_->have_user_force(default_send_as_dialog_id.get_user_id(),
-                                                    "on_update_dialog_default_send_message_as_dialog_id") ||
-               default_send_as_dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-      default_send_as_dialog_id = DialogId();
-    }
-  }
-
-  if (d->default_send_message_as_dialog_id != default_send_as_dialog_id) {
-    if (force || default_send_as_dialog_id.is_valid() ||
-        (td_->chat_manager_->are_created_public_broadcasts_inited() &&
-         td_->chat_manager_->get_created_public_broadcasts().empty())) {
-      LOG(INFO) << "Set message sender in " << dialog_id << " to " << default_send_as_dialog_id;
-      d->need_drop_default_send_message_as_dialog_id = false;
-      d->default_send_message_as_dialog_id = default_send_as_dialog_id;
-      send_update_chat_message_sender(d);
-    } else {
-      LOG(INFO) << "Postpone removal of message sender in " << dialog_id;
-      d->need_drop_default_send_message_as_dialog_id = true;
-    }
-    on_dialog_updated(d->dialog_id, "on_update_dialog_default_send_message_as_dialog_id");
-  } else if (default_send_as_dialog_id.is_valid() && d->need_drop_default_send_message_as_dialog_id) {
-    LOG(INFO) << "Don't remove message sender in " << dialog_id;
-    d->need_drop_default_send_message_as_dialog_id = false;
-    on_dialog_updated(d->dialog_id, "on_update_dialog_default_send_message_as_dialog_id");
-  }
-}
-
-void MessagesManager::on_update_dialog_message_ttl(DialogId dialog_id, MessageTtl message_ttl) {
-  auto d = get_dialog_force(dialog_id, "on_update_dialog_message_ttl");
-  if (d == nullptr) {
-    // nothing to do
-    return;
-  }
-  set_dialog_message_ttl(d, std::move(message_ttl));
-}
-
-void MessagesManager::set_dialog_message_ttl(Dialog *d, MessageTtl message_ttl) {
-  CHECK(d != nullptr);
-  if (d->message_ttl != message_ttl) {
-    d->message_ttl = message_ttl;
-    d->is_message_ttl_inited = true;
-    send_update_chat_message_auto_delete_time(d);
-  }
-  if (!d->is_message_ttl_inited) {
-    d->is_message_ttl_inited = true;
-    on_dialog_updated(d->dialog_id, "on_update_dialog_message_ttl");
-  }
-}
-
-void MessagesManager::on_create_new_dialog(telegram_api::object_ptr<telegram_api::Updates> &&updates,
-                                           MissingInvitees &&missing_invitees,
-                                           Promise<td_api::object_ptr<td_api::createdBasicGroupChat>> &&chat_promise,
-                                           Promise<td_api::object_ptr<td_api::chat>> &&channel_promise) {
-  LOG(INFO) << "Receive result for creating of a chat: " << to_string(updates);
-
-  auto fail = [&](Slice message) {
-    chat_promise.set_error(Status::Error(500, message));
-    channel_promise.set_error(Status::Error(500, message));
-  };
-  auto sent_messages = UpdatesManager::get_new_messages(updates.get());
-  auto sent_messages_random_ids = UpdatesManager::get_sent_messages_random_ids(updates.get());
-  if (sent_messages.size() != 1u || sent_messages_random_ids.size() != 1u) {
-    LOG(ERROR) << "Receive wrong result for create group or channel chat " << oneline(to_string(updates));
-    return fail("Unsupported server response");
-  }
-
-  auto *message = sent_messages.begin()->first;
-  // int64 message_random_id = *sent_messages_random_ids.begin();
-  // TODO check that message_random_id equals random_id after messages_createChat will be updated
-
-  if (sent_messages.begin()->second) {
-    return fail("Scheduled message received");
-  }
-
-  auto expected_type = chat_promise ? DialogType::Chat : DialogType::Channel;
-  auto dialog_id = DialogId::get_message_dialog_id(message);
-  if (dialog_id.get_type() != expected_type) {
-    return fail("Chat of wrong type has been created");
-  }
-  if (message->get_id() != telegram_api::messageService::ID) {
-    return fail("Invalid message received");
-  }
-  auto action_id = static_cast<const telegram_api::messageService *>(message)->action_->get_id();
-  if (action_id != telegram_api::messageActionChatCreate::ID &&
-      action_id != telegram_api::messageActionChannelCreate::ID) {
-    return fail("Invalid service message received");
-  }
-
-  const Dialog *d = get_dialog(dialog_id);
-  if (d != nullptr && d->last_new_message_id.is_valid()) {
-    // dialog have been already created and at least one non-temporary message was added,
-    // i.e. we are not interested in the creation of dialog by searchMessages
-    // then messages have already been added, so just set promise
-    if (chat_promise) {
-      return chat_promise.set_value(td_api::make_object<td_api::createdBasicGroupChat>(
-          get_chat_id_object(dialog_id, "on_create_new_dialog"),
-          missing_invitees.get_failed_to_add_members_object(td_->user_manager_.get())));
-    } else {
-      return channel_promise.set_value(get_chat_object(d, "on_create_new_dialog"));
-    }
-  }
-
-  if (pending_created_dialogs_.count(dialog_id) == 0) {
-    PendingCreatedDialog pending_created_dialog;
-    pending_created_dialog.failed_to_add_members_ =
-        missing_invitees.get_failed_to_add_members_object(td_->user_manager_.get());
-    pending_created_dialog.chat_promise_ = std::move(chat_promise);
-    pending_created_dialog.channel_promise_ = std::move(channel_promise);
-    pending_created_dialogs_.emplace(dialog_id, std::move(pending_created_dialog));
-  } else {
-    LOG(ERROR) << "Receive twice " << dialog_id << " as result of chat creation";
-    return fail("Chat was created earlier");
-  }
-
-  td_->updates_manager_->on_get_updates(std::move(updates), Promise<Unit>());
-}
-
-void MessagesManager::on_dialog_bots_updated(DialogId dialog_id, vector<UserId> bot_user_ids, bool from_database) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto d = from_database ? get_dialog(dialog_id) : get_dialog_force(dialog_id, "on_dialog_bots_updated");
-  if (d == nullptr) {
-    return;
-  }
-
-  bool has_bots = !bot_user_ids.empty();
-  if (!d->is_has_bots_inited || d->has_bots != has_bots) {
-    set_dialog_has_bots(d, has_bots);
-    on_dialog_updated(dialog_id, "on_dialog_bots_updated");
-  }
-
-  if (d->reply_markup_message_id != MessageId()) {
-    const Message *m = get_message_force(d, d->reply_markup_message_id, "on_dialog_bots_updated");
-    if (m == nullptr || (m->sender_user_id.is_valid() && !td::contains(bot_user_ids, m->sender_user_id))) {
-      LOG(INFO) << "Remove reply markup in " << dialog_id << ", because bot "
-                << (m == nullptr ? UserId() : m->sender_user_id) << " isn't a member of the chat";
-      set_dialog_reply_markup(d, MessageId());
-    }
-  }
-}
-
-void MessagesManager::set_dialog_has_bots(Dialog *d, bool has_bots) {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(d != nullptr);
-  LOG_CHECK(d->is_update_new_chat_sent) << "Wrong " << d->dialog_id << " in set_dialog_has_bots";
-
-  LOG(INFO) << "Set " << d->dialog_id << " has_bots to " << has_bots;
-
-  auto old_skip_bot_commands = need_skip_bot_commands(d->dialog_id, nullptr);
-  d->has_bots = has_bots;
-  d->is_has_bots_inited = true;
-  auto new_skip_bot_commands = need_skip_bot_commands(d->dialog_id, nullptr);
-  if (old_skip_bot_commands != new_skip_bot_commands) {
-    auto it = dialog_bot_command_message_ids_.find(d->dialog_id);
-    if (it != dialog_bot_command_message_ids_.end()) {
-      for (auto message_id : it->second.message_ids) {
-        auto m = get_message(d, message_id);
-        LOG_CHECK(m != nullptr) << d->dialog_id << ' ' << message_id;
-        send_update_message_content_impl(d->dialog_id, m, "set_dialog_has_bots");
-      }
-    }
-  }
-}
-
-void MessagesManager::on_dialog_photo_updated(DialogId dialog_id) {
-  auto d = get_dialog(dialog_id);  // called from update_user, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    send_closure(
-        G()->td(), &Td::send_update,
-        td_api::make_object<td_api::updateChatPhoto>(
-            get_chat_id_object(dialog_id, "updateChatPhoto"),
-            get_chat_photo_info_object(td_->file_manager_.get(), td_->dialog_manager_->get_dialog_photo(dialog_id))));
-  } else if (d != nullptr && d->is_update_new_chat_being_sent) {
-    const auto *photo = td_->dialog_manager_->get_dialog_photo(dialog_id);
-    if (photo == nullptr) {
-      LOG(ERROR) << "Removed photo of " << dialog_id << " while the chat is being added";
-    } else {
-      LOG(ERROR) << "Changed photo of " << dialog_id << " while the chat is being added to " << *photo;
-    }
-  }
-}
-
-void MessagesManager::on_dialog_accent_colors_updated(DialogId dialog_id) {
-  auto d = get_dialog(dialog_id);  // called from update_user, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatAccentColors>(
-                     get_chat_id_object(dialog_id, "updateChatAccentColors"),
-                     td_->dialog_manager_->get_dialog_accent_color_id_object(dialog_id),
-                     td_->dialog_manager_->get_dialog_background_custom_emoji_id(dialog_id).get(),
-                     td_->dialog_manager_->get_dialog_profile_accent_color_id_object(dialog_id),
-                     td_->dialog_manager_->get_dialog_profile_background_custom_emoji_id(dialog_id).get()));
-  }
-}
-
-void MessagesManager::on_dialog_title_updated(DialogId dialog_id) {
-  auto d = get_dialog(dialog_id);  // called from update_user, must not create the dialog
-  if (d != nullptr) {
-    update_dialogs_hints(d);
-    if (d->is_update_new_chat_sent) {
-      send_closure(G()->td(), &Td::send_update,
-                   td_api::make_object<td_api::updateChatTitle>(dialog_id.get(),
-                                                                td_->dialog_manager_->get_dialog_title(dialog_id)));
-    }
-  }
-}
-
-void MessagesManager::on_dialog_emoji_status_updated(DialogId dialog_id) {
-  auto d = get_dialog(dialog_id);  // called from update_user, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatEmojiStatus>(
-                     get_chat_id_object(dialog_id, "updateChatEmojiStatus"),
-                     td_->dialog_manager_->get_dialog_emoji_status_object(dialog_id)));
-  }
-}
-
-void MessagesManager::on_dialog_default_permissions_updated(DialogId dialog_id) {
-  auto d = get_dialog(dialog_id);  // called from update_user, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatPermissions>(
-                     dialog_id.get(),
-                     td_->dialog_manager_->get_dialog_default_permissions(dialog_id).get_chat_permissions_object()));
-  }
-}
-
-void MessagesManager::on_dialog_has_protected_content_updated(DialogId dialog_id) {
-  auto d = get_dialog(dialog_id);  // called from update_chat, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateChatHasProtectedContent>(
-                     dialog_id.get(), td_->dialog_manager_->get_dialog_has_protected_content(dialog_id)));
-  }
-}
-
-void MessagesManager::on_dialog_access_updated(DialogId dialog_id) {
-  auto d = get_dialog(dialog_id);  // called from update_chat, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    if (d->draft_message != nullptr && d->last_need_hide_dialog_draft_message != need_hide_dialog_draft_message(d)) {
-      send_update_chat_draft_message(d);
-    }
-  }
-}
-
-void MessagesManager::on_dialog_user_is_contact_updated(DialogId dialog_id, bool is_contact) {
-  CHECK(dialog_id.get_type() == DialogType::User);
-  auto d = get_dialog(dialog_id);  // called from update_user, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    on_dialog_access_updated(dialog_id);
-    if (d->know_action_bar) {
-      if (is_contact) {
-        if (d->action_bar != nullptr && d->action_bar->on_user_contact_added()) {
-          send_update_chat_action_bar(d);
-        }
-      } else {
-        repair_dialog_action_bar(d, "on_dialog_user_is_contact_updated");
-      }
-    }
-
-    if (td_->dialog_filter_manager_->have_dialog_filters() && d->order != DEFAULT_ORDER) {
-      update_dialog_lists(d, get_dialog_positions(d), true, false, "on_dialog_user_is_contact_updated");
-      td_->user_manager_->for_each_secret_chat_with_user(
-          d->dialog_id.get_user_id(), [this](SecretChatId secret_chat_id) {
-            DialogId dialog_id(secret_chat_id);
-            auto d = get_dialog(dialog_id);  // must not create the dialog
-            if (d != nullptr && d->is_update_new_chat_sent && d->order != DEFAULT_ORDER) {
-              update_dialog_lists(d, get_dialog_positions(d), true, false, "on_dialog_user_is_contact_updated");
-            }
-          });
-    }
-  }
-}
-
-void MessagesManager::on_dialog_user_is_deleted_updated(DialogId dialog_id, bool is_deleted) {
-  CHECK(dialog_id.get_type() == DialogType::User);
-  auto d = get_dialog(dialog_id);  // called from update_user, must not create the dialog
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    if (d->know_action_bar) {
-      if (is_deleted) {
-        if (d->action_bar != nullptr && d->action_bar->on_user_deleted()) {
-          send_update_chat_action_bar(d);
-        }
-        if (d->business_bot_manage_bar != nullptr && d->business_bot_manage_bar->on_user_deleted()) {
-          send_update_chat_business_bot_manage_bar(d);
-        }
-      } else {
-        repair_dialog_action_bar(d, "on_dialog_user_is_deleted_updated");
-      }
-    }
-
-    if (td_->dialog_filter_manager_->have_dialog_filters() && d->order != DEFAULT_ORDER) {
-      update_dialog_lists(d, get_dialog_positions(d), true, false, "on_dialog_user_is_deleted_updated");
-      td_->user_manager_->for_each_secret_chat_with_user(dialog_id.get_user_id(), [this](SecretChatId secret_chat_id) {
-        DialogId dialog_id(secret_chat_id);
-        auto d = get_dialog(dialog_id);  // must not create the dialog
-        if (d != nullptr && d->is_update_new_chat_sent && d->order != DEFAULT_ORDER) {
-          update_dialog_lists(d, get_dialog_positions(d), true, false, "on_dialog_user_is_deleted_updated");
-        }
-      });
-    }
-
-    if (is_deleted && d->has_bots) {
-      set_dialog_has_bots(d, false);
-      td_->user_manager_->for_each_secret_chat_with_user(dialog_id.get_user_id(), [this](SecretChatId secret_chat_id) {
-        DialogId dialog_id(secret_chat_id);
-        auto d = get_dialog(dialog_id);  // must not create the dialog
-        if (d != nullptr && d->is_update_new_chat_sent && d->has_bots) {
-          set_dialog_has_bots(d, false);
-        }
-      });
-    }
-  }
-}
-
-void MessagesManager::on_dialog_linked_channel_updated(DialogId dialog_id, ChannelId old_linked_channel_id,
-                                                       ChannelId new_linked_channel_id) const {
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  if (td_->auth_manager_->is_bot() || !td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return;
-  }
-  auto d = get_dialog(dialog_id);  // no need to create the dialog
-  if (d == nullptr || !d->is_update_new_chat_sent) {
-    return;
-  }
-
-  auto message_ids = find_dialog_messages(d, [old_linked_channel_id, new_linked_channel_id](const Message *m) {
-    return !m->reply_info.is_empty() && m->reply_info.channel_id_.is_valid() &&
-           (m->reply_info.channel_id_ == old_linked_channel_id || m->reply_info.channel_id_ == new_linked_channel_id);
-  });
-  LOG(INFO) << "Found discussion messages " << message_ids;
-  for (auto message_id : message_ids) {
-    const Message *m = get_message(d, message_id);
-    send_update_message_interaction_info(dialog_id, m);
-    send_update_last_message_if_needed(d, m, "on_dialog_linked_channel_updated");
-  }
-}
-
-class MessagesManager::RegetDialogLogEvent {
- public:
-  DialogId dialog_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-  }
-};
-
-uint64 MessagesManager::save_reget_dialog_log_event(DialogId dialog_id) {
-  RegetDialogLogEvent log_event{dialog_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::RegetDialog, get_log_event_storer(log_event));
-}
-
-void MessagesManager::send_get_dialog_query(DialogId dialog_id, Promise<Unit> &&promise, uint64 log_event_id,
-                                            const char *source) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (td_->auth_manager_->is_bot() || dialog_id.get_type() == DialogType::SecretChat) {
-    if (log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    }
-    return promise.set_error(Status::Error(500, "Wrong getDialog query"));
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    if (log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    }
-    return promise.set_error(Status::Error(400, "Can't access the chat"));
-  }
-
-  auto &promises = get_dialog_queries_[dialog_id];
-  promises.push_back(std::move(promise));
-  if (promises.size() != 1) {
-    if (log_event_id != 0) {
-      LOG(INFO) << "Duplicate getDialog query for " << dialog_id << " from " << source;
-      binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    }
-    // query has already been sent, just wait for the result
-    return;
-  }
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_reget_dialog_log_event(dialog_id);
-  }
-  if (log_event_id != 0) {
-    auto result = get_dialog_query_log_event_id_.emplace(dialog_id, log_event_id);
-    CHECK(result.second);
-  }
-
-  if (!G()->close_flag()) {
-    LOG(INFO) << "Send get " << dialog_id << " query from " << source;
-    td_->create_handler<GetDialogQuery>()->send(dialog_id);
-  } else {
-    // request will be sent after restart
-  }
-}
-
-void MessagesManager::on_get_dialog_query_finished(DialogId dialog_id, Status &&status) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Finished getting " << dialog_id << " with result " << status;
-  auto it = get_dialog_queries_.find(dialog_id);
-  CHECK(it != get_dialog_queries_.end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  get_dialog_queries_.erase(it);
-
-  auto log_event_it = get_dialog_query_log_event_id_.find(dialog_id);
-  if (log_event_it != get_dialog_query_log_event_id_.end()) {
-    if (!G()->close_flag()) {
-      binlog_erase(G()->td_db()->get_binlog(), log_event_it->second);
-    }
-    get_dialog_query_log_event_id_.erase(log_event_it);
-  }
-
-  if (status.is_ok()) {
-    set_promises(promises);
-  } else {
-    fail_promises(promises, std::move(status));
-  }
-}
-
-void MessagesManager::on_dialog_usernames_updated(DialogId dialog_id, const Usernames &old_usernames,
-                                                  const Usernames &new_usernames) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  LOG(INFO) << "Update usernames in " << dialog_id << " from " << old_usernames << " to " << new_usernames;
-
-  message_embedding_codes_[0].erase(dialog_id);
-  message_embedding_codes_[1].erase(dialog_id);
-
-  const auto *d = get_dialog(dialog_id);
-  if (d != nullptr) {
-    update_dialogs_hints(d);
-  }
-}
-
-bool MessagesManager::get_dialog_view_as_topics(const Dialog *d) const {
-  return !d->view_as_messages && (d->is_forum || d->dialog_id == td_->dialog_manager_->get_my_dialog_id());
-}
-
-bool MessagesManager::get_dialog_has_scheduled_messages(const Dialog *d) const {
-  if (!td_->dialog_manager_->have_input_peer(d->dialog_id, true, AccessRights::Read)) {
-    return false;
-  }
-  if (td_->dialog_manager_->is_broadcast_channel(d->dialog_id) &&
-      !td_->chat_manager_->get_channel_status(d->dialog_id.get_channel_id()).can_post_messages()) {
-    return false;
-  }
-  // TODO send updateChatHasScheduledMessage when can_post_messages changes
-
-  return d->has_scheduled_server_messages || d->has_scheduled_database_messages ||
-         have_dialog_scheduled_messages_in_memory(d);
-}
-
-MessagesManager::DialogScheduledMessages *MessagesManager::add_dialog_scheduled_messages(Dialog *d) {
-  if (d->scheduled_messages == nullptr) {
-    d->scheduled_messages = make_unique<DialogScheduledMessages>();
-  }
-  return d->scheduled_messages.get();
-}
-
-MessagesManager::NotificationInfo *MessagesManager::add_dialog_notification_info(Dialog *d) {
-  if (d->notification_info == nullptr) {
-    d->notification_info = make_unique<NotificationInfo>();
-  }
-  return d->notification_info.get();
-}
-
-void MessagesManager::on_send_dialog_action_timeout(DialogId dialog_id) {
-  LOG(INFO) << "Receive send_chat_action timeout in " << dialog_id;
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  if (can_send_message(dialog_id).is_error()) {
-    return;
-  }
-
-  auto queue_id = ChainId(dialog_id, MessageContentType::Photo).get();
-  CHECK(queue_id & 1);
-
-  auto queue_it = yet_unsent_media_queues_.find(queue_id);
-  if (queue_it == yet_unsent_media_queues_.end()) {
-    return;
-  }
-
-  pending_send_dialog_action_timeout_.add_timeout_in(dialog_id.get(), 4.0);
-
-  auto &queue = queue_it->second.queue_;
-  CHECK(!queue.empty());
-  const Message *m = get_message(d, queue.begin()->first);
-  if (m == nullptr) {
-    return;
-  }
-  CHECK(m->message_id.is_yet_unsent());
-  if (m->forward_info != nullptr || m->had_forward_info || m->is_copy || m->message_id.is_scheduled() ||
-      m->sender_dialog_id.is_valid() || m->content->get_type() == MessageContentType::PaidMedia ||
-      td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    return;
-  }
-
-  auto file_upload_id = get_message_send_file_upload_id(dialog_id, m, 0);
-  if (!file_upload_id.is_valid()) {
-    if (get_message_content_cover(m->content.get()) == nullptr) {
-      LOG(ERROR) << "Have no being uploaded file in " << to_string(get_message_message_content_object(dialog_id, m));
-    }
-    return;
-  }
-  auto file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  if (!file_view.is_uploading()) {
-    return;
-  }
-  int64 total_size = file_view.expected_size();
-  int64 uploaded_size = file_view.remote_size();
-  int32 progress = 0;
-  if (total_size > 0 && uploaded_size > 0) {
-    if (uploaded_size > total_size) {
-      uploaded_size = total_size;  // just in case
-    }
-    progress = static_cast<int32>(100 * uploaded_size / total_size);
-  }
-
-  DialogAction action = DialogAction::get_uploading_action(m->content->get_type(), progress);
-  if (action == DialogAction()) {
-    return;
-  }
-  LOG(INFO) << "Send " << action << " in " << dialog_id;
-  td_->dialog_action_manager_->send_dialog_action(dialog_id, m->top_thread_message_id, {}, std::move(action),
-                                                  Promise<Unit>());
-}
-
-void MessagesManager::get_dialog_filter_dialog_count(td_api::object_ptr<td_api::chatFolder> filter,
-                                                     Promise<int32> &&promise) {
-  TRY_RESULT_PROMISE(promise, dialog_filter,
-                     DialogFilter::create_dialog_filter(td_, DialogFilterId(), std::move(filter)));
-
-  int32 total_count = 0;
-  for (auto folder_id : dialog_filter->get_folder_ids()) {
-    const auto &folder = *get_dialog_folder(folder_id);
-    for (const auto &dialog_date : folder.ordered_dialogs_) {
-      if (dialog_date.get_order() == DEFAULT_ORDER) {
-        break;
-      }
-
-      auto dialog_id = dialog_date.get_dialog_id();
-      if (dialog_filter->need_dialog(td_, get_dialog_info_for_dialog_filter(get_dialog(dialog_id)))) {
-        total_count++;
-      }
-    }
-  }
-  promise.set_value(std::move(total_count));
-}
-
-void MessagesManager::add_dialog_list_for_dialog_filter(DialogFilterId dialog_filter_id) {
-  DialogListId dialog_list_id(dialog_filter_id);
-  CHECK(dialog_lists_.count(dialog_list_id) == 0);
-
-  auto &list = add_dialog_list(dialog_list_id);
-  auto folder_ids = get_dialog_list_folder_ids(list);
-  CHECK(!folder_ids.empty());
-
-  for (auto folder_id : folder_ids) {
-    auto *folder = get_dialog_folder(folder_id);
-    CHECK(folder != nullptr);
-    for (const auto &dialog_date : folder->ordered_dialogs_) {
-      if (dialog_date.get_order() == DEFAULT_ORDER) {
-        break;
-      }
-
-      auto dialog_id = dialog_date.get_dialog_id();
-      Dialog *d = get_dialog(dialog_id);
-      CHECK(d != nullptr);
-
-      if (need_dialog_in_list(d, list)) {
-        list.in_memory_dialog_total_count_++;
-
-        add_dialog_to_list(d, dialog_list_id);
-      }
-    }
-  }
-
-  auto pinned_dialog_ids = td_->dialog_filter_manager_->get_pinned_dialog_ids(dialog_filter_id);
-  for (const auto &dialog_id : reversed(pinned_dialog_ids)) {
-    if (!dialog_id.is_valid()) {
-      continue;
-    }
-    auto order = get_next_pinned_dialog_order();
-    list.pinned_dialogs_.emplace_back(order, dialog_id);
-    list.pinned_dialog_id_orders_.emplace(dialog_id, order);
-  }
-  std::reverse(list.pinned_dialogs_.begin(), list.pinned_dialogs_.end());
-  list.are_pinned_dialogs_inited_ = true;
-
-  update_list_last_pinned_dialog_date(list);
-  update_list_last_dialog_date(list);
-}
-
-void MessagesManager::edit_dialog_list_for_dialog_filter(unique_ptr<DialogFilter> &old_dialog_filter,
-                                                         unique_ptr<DialogFilter> new_dialog_filter,
-                                                         bool &disable_get_dialog_filter, const char *source) {
-  CHECK(old_dialog_filter != nullptr);
-  CHECK(new_dialog_filter != nullptr);
-  auto dialog_list_id = DialogListId(old_dialog_filter->get_dialog_filter_id());
-  auto *old_list_ptr = get_dialog_list(dialog_list_id);
-  CHECK(old_list_ptr != nullptr);
-  auto &old_list = *old_list_ptr;
-
-  auto folder_ids = old_dialog_filter->get_folder_ids();
-  CHECK(!folder_ids.empty());
-  for (auto folder_id : new_dialog_filter->get_folder_ids()) {
-    if (!td::contains(folder_ids, folder_id)) {
-      folder_ids.push_back(folder_id);
-    }
-  }
-
-  DialogList new_list;
-  new_list.dialog_list_id = dialog_list_id;
-
-  auto old_it = old_list.pinned_dialogs_.rbegin();
-  for (const auto &input_dialog_id : reversed(new_dialog_filter->get_pinned_input_dialog_ids())) {
-    auto dialog_id = input_dialog_id.get_dialog_id();
-    if (!dialog_id.is_valid()) {
-      continue;
-    }
-    while (old_it < old_list.pinned_dialogs_.rend()) {
-      if (old_it->get_dialog_id() == dialog_id) {
-        break;
-      }
-      ++old_it;
-    }
-
-    int64 order;
-    if (old_it < old_list.pinned_dialogs_.rend()) {
-      order = old_it->get_order();
-      ++old_it;
-    } else {
-      order = get_next_pinned_dialog_order();
-    }
-    new_list.pinned_dialogs_.emplace_back(order, dialog_id);
-    new_list.pinned_dialog_id_orders_.emplace(dialog_id, order);
-  }
-  std::reverse(new_list.pinned_dialogs_.begin(), new_list.pinned_dialogs_.end());
-  new_list.are_pinned_dialogs_inited_ = true;
-
-  do_update_list_last_pinned_dialog_date(new_list);
-  do_update_list_last_dialog_date(new_list, new_dialog_filter->get_folder_ids());
-
-  new_list.server_dialog_total_count_ = 0;
-  new_list.secret_chat_total_count_ = 0;
-
-  std::map<DialogDate, const Dialog *> updated_position_dialogs;
-  for (auto folder_id : folder_ids) {
-    auto *folder = get_dialog_folder(folder_id);
-    CHECK(folder != nullptr);
-    for (const auto &dialog_date : folder->ordered_dialogs_) {
-      if (dialog_date.get_order() == DEFAULT_ORDER) {
-        break;
-      }
-
-      auto dialog_id = dialog_date.get_dialog_id();
-      Dialog *d = get_dialog(dialog_id);
-      CHECK(d != nullptr);
-
-      const DialogPositionInList old_position = get_dialog_position_in_list(old_list_ptr, d);
-      // can't use get_dialog_position_in_list, because need_dialog_in_list calls get_dialog_filter
-      DialogPositionInList new_position;
-      if (new_dialog_filter->need_dialog(td_, get_dialog_info_for_dialog_filter(d))) {
-        new_position.private_order = get_dialog_private_order(&new_list, d);
-        if (new_position.private_order != 0) {
-          new_position.public_order =
-              DialogDate(new_position.private_order, dialog_id) <= new_list.list_last_dialog_date_
-                  ? new_position.private_order
-                  : 0;
-          new_position.is_pinned = get_dialog_pinned_order(&new_list, dialog_id) != DEFAULT_ORDER;
-          new_position.is_sponsored = is_dialog_sponsored(d);
-        }
-      }
-
-      if (need_send_update_chat_position(old_position, new_position)) {
-        updated_position_dialogs.emplace(DialogDate(new_position.public_order, dialog_id), d);
-      }
-
-      bool was_in_list = old_position.private_order != 0;
-      bool is_in_list = new_position.private_order != 0;
-      if (is_in_list) {
-        if (!was_in_list) {
-          add_dialog_to_list(d, dialog_list_id);
-        }
-
-        new_list.in_memory_dialog_total_count_++;
-        if (dialog_id.get_type() == DialogType::SecretChat) {
-          new_list.secret_chat_total_count_++;
-        } else {
-          new_list.server_dialog_total_count_++;
-        }
-
-        auto unread_count = d->server_unread_count + d->local_unread_count;
-        if (unread_count != 0) {
-          new_list.unread_message_total_count_ += unread_count;
-          if (is_dialog_muted(d)) {
-            new_list.unread_message_muted_count_ += unread_count;
-          }
-        }
-        if (unread_count != 0 || d->is_marked_as_unread) {
-          new_list.unread_dialog_total_count_++;
-          if (unread_count == 0 && d->is_marked_as_unread) {
-            new_list.unread_dialog_marked_count_++;
-          }
-          if (is_dialog_muted(d)) {
-            new_list.unread_dialog_muted_count_++;
-            if (unread_count == 0 && d->is_marked_as_unread) {
-              new_list.unread_dialog_muted_marked_count_++;
-            }
-          }
-        }
-      } else {
-        if (was_in_list) {
-          remove_dialog_from_list(d, dialog_list_id);
-        }
-      }
-    }
-  }
-
-  if (new_list.list_last_dialog_date_ == MAX_DIALOG_DATE) {
-    new_list.is_message_unread_count_inited_ = true;
-    new_list.is_dialog_unread_count_inited_ = true;
-    new_list.need_unread_count_recalc_ = false;
-  } else {
-    if (old_list.is_message_unread_count_inited_) {  // can't stop sending updates
-      new_list.is_message_unread_count_inited_ = true;
-    }
-    if (old_list.is_dialog_unread_count_inited_) {  // can't stop sending updates
-      new_list.is_dialog_unread_count_inited_ = true;
-    }
-    new_list.server_dialog_total_count_ = -1;
-    new_list.secret_chat_total_count_ = -1;
-  }
-
-  bool need_update_unread_message_count =
-      new_list.is_message_unread_count_inited_ &&
-      (old_list.unread_message_total_count_ != new_list.unread_message_total_count_ ||
-       old_list.unread_message_muted_count_ != new_list.unread_message_muted_count_ ||
-       !old_list.is_message_unread_count_inited_);
-  bool need_update_unread_chat_count =
-      new_list.is_dialog_unread_count_inited_ &&
-      (old_list.unread_dialog_total_count_ != new_list.unread_dialog_total_count_ ||
-       old_list.unread_dialog_muted_count_ != new_list.unread_dialog_muted_count_ ||
-       old_list.unread_dialog_marked_count_ != new_list.unread_dialog_marked_count_ ||
-       old_list.unread_dialog_muted_marked_count_ != new_list.unread_dialog_muted_marked_count_ ||
-       get_dialog_total_count(old_list) != get_dialog_total_count(new_list) ||
-       !old_list.is_dialog_unread_count_inited_);
-  bool need_save_unread_chat_count = new_list.is_dialog_unread_count_inited_ &&
-                                     (old_list.server_dialog_total_count_ != new_list.server_dialog_total_count_ ||
-                                      old_list.secret_chat_total_count_ != new_list.secret_chat_total_count_);
-
-  auto load_list_promises = std::move(old_list.load_list_queries_);
-
-  old_list = std::move(new_list);
-  old_dialog_filter = std::move(new_dialog_filter);
-
-  disable_get_dialog_filter = false;
-
-  if (need_update_unread_message_count) {
-    send_update_unread_message_count(old_list, DialogId(), true, source);
-  }
-  if (need_update_unread_chat_count) {
-    send_update_unread_chat_count(old_list, DialogId(), true, source);
-  } else if (need_save_unread_chat_count) {
-    save_unread_chat_count(old_list);
-  }
-
-  for (const auto &it : updated_position_dialogs) {
-    send_update_chat_position(dialog_list_id, it.second, source);
-  }
-
-  if (old_list.need_unread_count_recalc_) {
-    // repair unread count
-    get_dialogs_from_list(dialog_list_id, static_cast<int32>(old_list.pinned_dialogs_.size() + 2), Auto());
-  }
-
-  if (!load_list_promises.empty()) {
-    LOG(INFO) << "Retry loading of chats in " << dialog_list_id;
-    set_promises(load_list_promises);  // try again
-  }
-}
-
-void MessagesManager::delete_dialog_list_for_dialog_filter(DialogFilterId dialog_filter_id, const char *source) {
-  auto dialog_list_id = DialogListId(dialog_filter_id);
-  auto *list = get_dialog_list(dialog_list_id);
-  CHECK(list != nullptr);
-  auto folder_ids = get_dialog_list_folder_ids(*list);
-  CHECK(!folder_ids.empty());
-
-  for (auto folder_id : folder_ids) {
-    auto *folder = get_dialog_folder(folder_id);
-    CHECK(folder != nullptr);
-    for (const auto &dialog_date : folder->ordered_dialogs_) {
-      if (dialog_date.get_order() == DEFAULT_ORDER) {
-        break;
-      }
-
-      auto dialog_id = dialog_date.get_dialog_id();
-      Dialog *d = get_dialog(dialog_id);
-      CHECK(d != nullptr);
-
-      const DialogPositionInList old_position = get_dialog_position_in_list(list, d);
-
-      if (is_dialog_in_list(d, dialog_list_id)) {
-        remove_dialog_from_list(d, dialog_list_id);
-
-        if (old_position.public_order != 0) {
-          send_update_chat_position(dialog_list_id, d, source);
-        }
-      }
-    }
-  }
-
-  if (G()->use_message_database()) {
-    postponed_unread_message_count_updates_.erase(dialog_list_id);
-    postponed_unread_chat_count_updates_.erase(dialog_list_id);
-
-    if (list->is_message_unread_count_inited_) {
-      list->unread_message_total_count_ = 0;
-      list->unread_message_muted_count_ = 0;
-      send_update_unread_message_count(*list, DialogId(), true, source, true);
-      G()->td_db()->get_binlog_pmc()->erase(PSTRING() << "unread_message_count" << dialog_list_id.get());
-    }
-    if (list->is_dialog_unread_count_inited_) {
-      list->unread_dialog_total_count_ = 0;
-      list->unread_dialog_muted_count_ = 0;
-      list->unread_dialog_marked_count_ = 0;
-      list->unread_dialog_muted_marked_count_ = 0;
-      list->in_memory_dialog_total_count_ = 0;
-      list->server_dialog_total_count_ = 0;
-      list->secret_chat_total_count_ = 0;
-      send_update_unread_chat_count(*list, DialogId(), true, source, true);
-      G()->td_db()->get_binlog_pmc()->erase(PSTRING() << "unread_dialog_count" << dialog_list_id.get());
-    }
-  }
-
-  fail_promises(list->load_list_queries_, Status::Error(400, "Chat list not found"));
-
-  dialog_lists_.erase(dialog_list_id);
-}
-
-vector<DialogListId> MessagesManager::get_dialog_lists_to_add_dialog(DialogId dialog_id) {
-  vector<DialogListId> result;
-  if (can_add_dialog_to_filter(dialog_id).is_error()) {
-    return result;
-  }
-
-  if (dialog_id != td_->dialog_manager_->get_my_dialog_id() &&
-      dialog_id != DialogId(UserManager::get_service_notifications_user_id())) {
-    result.push_back(
-        DialogListId(get_dialog(dialog_id)->folder_id == FolderId::archive() ? FolderId::main() : FolderId::archive()));
-  }
-
-  for (auto dialog_filter_id : td_->dialog_filter_manager_->get_dialog_filters_to_add_dialog(dialog_id)) {
-    result.push_back(DialogListId(dialog_filter_id));
-  }
-  return result;
-}
-
-void MessagesManager::add_dialog_to_list(DialogId dialog_id, DialogListId dialog_list_id, Promise<Unit> &&promise) {
-  LOG(INFO) << "Receive addChatToList request to add " << dialog_id << " to " << dialog_list_id;
-  CHECK(!td_->auth_manager_->is_bot());
-
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "add_dialog_to_list"));
-
-  if (d->order == DEFAULT_ORDER) {
-    return promise.set_error(Status::Error(400, "Chat is not in a chat list"));
-  }
-
-  if (get_dialog_list(dialog_list_id) == nullptr) {
-    return promise.set_error(Status::Error(400, "Chat list not found"));
-  }
-
-  if (dialog_list_id.is_filter()) {
-    return promise.set_result(td_->dialog_filter_manager_->add_dialog(
-        dialog_list_id.get_filter_id(), td_->dialog_manager_->get_input_dialog_id(dialog_id)));
-  }
-
-  CHECK(dialog_list_id.is_folder());
-  auto folder_id = dialog_list_id.get_folder_id();
-  if (d->folder_id == folder_id) {
-    return promise.set_value(Unit());
-  }
-
-  if (folder_id == FolderId::archive() && (dialog_id == td_->dialog_manager_->get_my_dialog_id() ||
-                                           dialog_id == DialogId(UserManager::get_service_notifications_user_id()))) {
-    return promise.set_error(Status::Error(400, "Chat can't be archived"));
-  }
-
-  set_dialog_folder_id(d, folder_id);
-
-  if (dialog_id.get_type() != DialogType::SecretChat) {
-    set_dialog_folder_id_on_server(dialog_id, false);
-  }
-  promise.set_value(Unit());
-}
-
-class MessagesManager::SetDialogFolderIdOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  FolderId folder_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(folder_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-    td::parse(folder_id_, parser);
-  }
-};
-
-void MessagesManager::set_dialog_folder_id_on_server(DialogId dialog_id, bool from_binlog) {
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  if (!from_binlog && G()->use_message_database()) {
-    SetDialogFolderIdOnServerLogEvent log_event;
-    log_event.dialog_id_ = dialog_id;
-    log_event.folder_id_ = d->folder_id;
-    add_log_event(d->set_folder_id_log_event_id, get_log_event_storer(log_event),
-                  LogEvent::HandlerType::SetDialogFolderIdOnServer, "set chat folder");
-  }
-
-  Promise<Unit> promise;
-  if (d->set_folder_id_log_event_id.log_event_id != 0) {
-    d->set_folder_id_log_event_id.generation++;
-    promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id,
-                                      generation = d->set_folder_id_log_event_id.generation](Result<Unit> result) {
-      if (!G()->close_flag()) {
-        send_closure(actor_id, &MessagesManager::on_updated_dialog_folder_id, dialog_id, generation);
-      }
-    });
-  }
-
-  td_->dialog_manager_->set_dialog_folder_id_on_server(dialog_id, d->folder_id, std::move(promise));
-}
-
-void MessagesManager::on_updated_dialog_folder_id(DialogId dialog_id, uint64 generation) {
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  delete_log_event(d->set_folder_id_log_event_id, generation, "set chat folder");
-}
-
-void MessagesManager::set_dialog_available_reactions(
-    DialogId dialog_id, td_api::object_ptr<td_api::ChatAvailableReactions> &&available_reactions_ptr,
-    Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d,
-                     check_dialog_access(dialog_id, false, AccessRights::Read, "set_dialog_available_reactions"));
-
-  ChatReactions available_reactions(std::move(available_reactions_ptr),
-                                    !td_->dialog_manager_->is_broadcast_channel(dialog_id));
-  auto active_reactions = get_active_reactions(available_reactions);
-  if (active_reactions.reaction_types_.size() != available_reactions.reaction_types_.size()) {
-    return promise.set_error(Status::Error(400, "Invalid reactions specified"));
-  }
-  available_reactions = std::move(active_reactions);
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      return promise.set_error(Status::Error(400, "Can't change private chat available reactions"));
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      auto status = td_->chat_manager_->get_chat_permissions(chat_id);
-      if (!status.can_change_info_and_settings() ||
-          (td_->auth_manager_->is_bot() && !td_->chat_manager_->is_appointed_chat_administrator(chat_id))) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change chat available reactions"));
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto status = td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id());
-      if (!status.can_change_info_and_settings()) {
-        return promise.set_error(Status::Error(400, "Not enough rights to change chat available reactions"));
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  bool is_changed = d->available_reactions != available_reactions;
-
-  set_dialog_available_reactions(d, ChatReactions(available_reactions));
-
-  if (!is_changed) {
-    return promise.set_value(Unit());
-  }
-
-  td_->dialog_manager_->set_dialog_available_reactions_on_server(dialog_id, available_reactions, std::move(promise));
-}
-
-void MessagesManager::set_dialog_message_ttl(DialogId dialog_id, int32 ttl, Promise<Unit> &&promise) {
-  if (ttl < 0) {
-    return promise.set_error(Status::Error(400, "Message auto-delete time can't be negative"));
-  }
-
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Write, "set_dialog_message_ttl"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (dialog_id == td_->dialog_manager_->get_my_dialog_id() ||
-          dialog_id == DialogId(UserManager::get_service_notifications_user_id())) {
-        return promise.set_error(Status::Error(400, "Message auto-delete time in the chat can't be changed"));
-      }
-      break;
-    case DialogType::Chat: {
-      auto chat_id = dialog_id.get_chat_id();
-      auto status = td_->chat_manager_->get_chat_permissions(chat_id);
-      if (!status.can_change_info_and_settings()) {
-        return promise.set_error(
-            Status::Error(400, "Not enough rights to change message auto-delete time in the chat"));
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto status = td_->chat_manager_->get_channel_permissions(dialog_id.get_channel_id());
-      if (!status.can_change_info_and_settings()) {
-        return promise.set_error(
-            Status::Error(400, "Not enough rights to change message auto-delete time in the chat"));
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  if (dialog_id.get_type() != DialogType::SecretChat) {
-    td_->dialog_manager_->set_dialog_message_ttl_on_server(dialog_id, ttl, std::move(promise));
-  } else {
-    bool need_update_dialog_pos = false;
-    Message *m =
-        get_message_to_send(d, MessageId(), MessageInputReplyTo(), MessageSendOptions(),
-                            create_chat_set_ttl_message_content(ttl, UserId()), false, &need_update_dialog_pos);
-
-    send_update_new_message(d, m);
-    if (need_update_dialog_pos) {
-      send_update_chat_last_message(d, "set_dialog_message_ttl");
-    }
-
-    int64 random_id = begin_send_message(dialog_id, m);
-
-    send_closure(td_->secret_chats_manager_, &SecretChatsManager::send_set_ttl_message, dialog_id.get_secret_chat_id(),
-                 ttl, random_id, std::move(promise));
-  }
-}
-
-void MessagesManager::set_dialog_theme(DialogId dialog_id, const string &theme_name, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Write, "set_dialog_theme"));
-
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      break;
-    case DialogType::Chat:
-    case DialogType::Channel:
-      return promise.set_error(Status::Error(400, "Can't change theme in the chat"));
-    case DialogType::SecretChat: {
-      auto user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      if (!user_id.is_valid()) {
-        return promise.set_error(Status::Error(400, "Can't access the user"));
-      }
-      dialog_id = DialogId(user_id);
-      break;
-    }
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  // TODO this can be wrong if there were previous change theme requests
-  if (get_dialog_theme_name(d) == theme_name) {
-    return promise.set_value(Unit());
-  }
-
-  td_->dialog_manager_->set_dialog_theme_on_server(dialog_id, theme_name, std::move(promise));
-}
-
-void MessagesManager::pin_dialog_message(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                         MessageId message_id, bool disable_notification, bool only_for_self,
-                                         bool is_unpin, Promise<Unit> &&promise) {
-  bool as_business = business_connection_id.is_valid();
-  if (as_business) {
-    TRY_STATUS_PROMISE(promise,
-                       td_->business_connection_manager_->check_business_connection(business_connection_id, dialog_id));
-  } else {
-    auto d = get_dialog_force(dialog_id, "pin_dialog_message");
-    if (d == nullptr) {
-      return promise.set_error(Status::Error(400, "Chat not found"));
-    }
-    const Message *m = get_message_force(d, message_id, "pin_dialog_message");
-    TRY_STATUS_PROMISE(promise, can_pin_message(dialog_id, m));
-  }
-
-  if (only_for_self && dialog_id.get_type() != DialogType::User) {
-    return promise.set_error(Status::Error(400, "Messages can't be pinned only for self in the chat"));
-  }
-
-  // TODO log event
-  td_->create_handler<UpdateDialogPinnedMessageQuery>(std::move(promise))
-      ->send(business_connection_id, dialog_id, message_id, is_unpin, disable_notification, only_for_self);
-}
-
-void MessagesManager::unpin_all_dialog_messages(DialogId dialog_id, MessageId top_thread_message_id,
-                                                Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, d, check_dialog_access(dialog_id, true, AccessRights::Read, "unpin_all_dialog_messages"));
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->can_pin_messages(dialog_id));
-  TRY_STATUS_PROMISE(promise, can_use_top_thread_message_id(d, top_thread_message_id, MessageInputReplyTo()));
-
-  if (!td_->auth_manager_->is_bot()) {
-    auto message_ids = find_dialog_messages(d, [top_thread_message_id](const Message *m) {
-      return m->is_pinned && (!top_thread_message_id.is_valid() ||
-                              (m->is_topic_message && m->top_thread_message_id == top_thread_message_id));
-    });
-
-    vector<int64> deleted_message_ids;
-    for (auto message_id : message_ids) {
-      auto m = get_message(d, message_id);
-      CHECK(m != nullptr);
-
-      m->is_pinned = false;
-      send_closure(G()->td(), &Td::send_update,
-                   td_api::make_object<td_api::updateMessageIsPinned>(
-                       get_chat_id_object(d->dialog_id, "updateMessageIsPinned"), m->message_id.get(), m->is_pinned));
-      on_message_changed(d, m, true, "unpin_all_dialog_messages");
-    }
-  }
-
-  if (top_thread_message_id.is_valid()) {
-    return td_->message_query_manager_->unpin_all_topic_messages_on_server(dialog_id, top_thread_message_id, 0,
-                                                                           std::move(promise));
-  }
-
-  set_dialog_last_pinned_message_id(d, MessageId());
-  if (!td_->auth_manager_->is_bot() &&
-      d->message_count_by_index[message_search_filter_index(MessageSearchFilter::Pinned)] != 0) {
-    d->message_count_by_index[message_search_filter_index(MessageSearchFilter::Pinned)] = 0;
-    on_dialog_updated(dialog_id, "unpin_all_dialog_messages");
-  }
-
-  td_->message_query_manager_->unpin_all_dialog_messages_on_server(dialog_id, 0, std::move(promise));
-}
-
-MessagesManager::Message *MessagesManager::get_message(Dialog *d, MessageId message_id) {
-  return const_cast<Message *>(get_message(static_cast<const Dialog *>(d), message_id));
-}
-
-const MessagesManager::Message *MessagesManager::get_message(const Dialog *d, MessageId message_id) {
-  CHECK(d != nullptr);
-  const Message *result = nullptr;
-  if (message_id.is_scheduled()) {
-    if (d->scheduled_messages != nullptr && message_id.is_valid_scheduled()) {
-      if (message_id.is_scheduled_server()) {
-        auto server_message_id = message_id.get_scheduled_server_message_id();
-        auto it = d->scheduled_messages->scheduled_message_date_.find(server_message_id);
-        if (it != d->scheduled_messages->scheduled_message_date_.end()) {
-          int32 date = it->second;
-          message_id = MessageId(server_message_id, date);
-          CHECK(message_id.is_scheduled_server());
-        }
-      }
-      auto it = d->scheduled_messages->scheduled_messages_.find(message_id);
-      if (it != d->scheduled_messages->scheduled_messages_.end()) {
-        result = it->second.get();
-      }
-    }
-  } else {
-    result = d->messages.get_pointer(message_id);
-    if (result != nullptr) {
-      auto unix_time = G()->unix_time();
-      if (unix_time > result->last_access_date + 5) {
-        result->last_access_date = unix_time;
-        auto list_node = const_cast<ListNode *>(static_cast<const ListNode *>(result));
-        list_node->remove();
-        d->message_lru_list.put_back(list_node);
-      }
-    }
-  }
-  LOG(DEBUG) << "Search for " << message_id << " in " << d->dialog_id << " found " << result;
-  return result;
-}
-
-const MessagesManager::Message *MessagesManager::get_message_static(const Dialog *d, MessageId message_id) {
-  return get_message(d, message_id);
-}
-
-MessagesManager::Message *MessagesManager::get_message_force(Dialog *d, MessageId message_id, const char *source) {
-  if (!message_id.is_valid() && !message_id.is_valid_scheduled()) {
-    return nullptr;
-  }
-
-  auto result = get_message(d, message_id);
-  if (result != nullptr) {
-    return result;
-  }
-
-  if (!G()->use_message_database() || message_id.is_yet_unsent() || is_deleted_message(d, message_id)) {
-    return nullptr;
-  }
-
-  if (message_id.is_scheduled() && d->has_loaded_scheduled_messages_from_database) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load " << MessageFullId{d->dialog_id, message_id} << " from database from " << source;
-
-  auto r_value = G()->td_db()->get_message_db_sync()->get_message({d->dialog_id, message_id});
-  if (r_value.is_error()) {
-    return nullptr;
-  }
-  return on_get_message_from_database(d, r_value.ok(), message_id.is_scheduled(), source);
-}
-
-MessagesManager::Message *MessagesManager::on_get_message_from_database(const MessageDbMessage &message,
-                                                                        bool is_scheduled, const char *source) {
-  if (message.data.empty()) {
-    return nullptr;
-  }
-
-  auto dialog_id = message.dialog_id;
-  Dialog *d = get_dialog_force(dialog_id, source);
-  if (d == nullptr) {
-    LOG(ERROR) << "Can't find " << dialog_id << ", but have a message from it from " << source;
-    if (!dialog_id.is_valid()) {
-      LOG(ERROR) << "Receive message in invalid " << dialog_id << " from " << source;
-      return nullptr;
-    }
-
-    bool is_valid_server_message_id =
-        (is_scheduled ? message.message_id.is_valid_scheduled() && message.message_id.is_scheduled_server()
-                      : message.message_id.is_valid() && message.message_id.is_server());
-    if (is_valid_server_message_id &&
-        (dialog_id.get_type() == DialogType::User || dialog_id.get_type() == DialogType::Chat)) {
-      get_message_from_server({dialog_id, message.message_id}, Auto(), "on_get_message_from_database 1");
-    }
-
-    force_create_dialog(dialog_id, source);
-    d = get_dialog_force(dialog_id, source);
-    CHECK(d != nullptr);
-  }
-
-  return on_get_message_from_database(d, message.message_id, message.data, is_scheduled, source);
-}
-
-MessagesManager::Message *MessagesManager::on_get_message_from_database(Dialog *d,
-                                                                        const MessageDbDialogMessage &message,
-                                                                        bool is_scheduled, const char *source) {
-  return on_get_message_from_database(d, message.message_id, message.data, is_scheduled, source);
-}
-
-MessagesManager::Message *MessagesManager::on_get_message_from_database(Dialog *d, MessageId expected_message_id,
-                                                                        const BufferSlice &value, bool is_scheduled,
-                                                                        const char *source) {
-  if (value.empty()) {
-    return nullptr;
-  }
-
-  auto message = parse_message(d, expected_message_id, value, is_scheduled);
-  if (message == nullptr) {
-    return nullptr;
-  }
-
-  CHECK(d != nullptr);
-  auto dialog_id = d->dialog_id;
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    return nullptr;
-  }
-
-  auto old_message = get_message(d, message->message_id);
-  if (old_message != nullptr) {
-    // data in the database is always outdated, so return a message from the memory
-    if (dialog_id.get_type() == DialogType::SecretChat) {
-      CHECK(!is_scheduled);
-      // just in case restore random_id to message_id correspondence
-      // can be needed if there was newer unloaded message with the same random_id
-      add_random_id_to_message_id_correspondence(d, old_message->random_id, old_message->message_id);
-    }
-
-    if (old_message->notification_id.is_valid() && !is_scheduled) {
-      auto notification_info = add_dialog_notification_info(d);
-      add_notification_id_to_message_id_correspondence(notification_info, old_message->notification_id,
-                                                       old_message->message_id);
-    }
-
-    return old_message;
-  }
-
-  Dependencies dependencies;
-  add_message_dependencies(dependencies, message.get());
-  if (!dependencies.resolve_force(td_, "on_get_message_from_database") &&
-      dialog_id.get_type() != DialogType::SecretChat) {
-    get_message_from_server({dialog_id, message->message_id}, Auto(), "on_get_message_from_database 2");
-  }
-
-  bool need_update = false;
-  bool need_update_dialog_pos = false;
-  auto result =
-      add_message_to_dialog(d, std::move(message), true, false, &need_update, &need_update_dialog_pos, source);
-  if (need_update_dialog_pos) {
-    LOG(ERROR) << "Need update chat position after loading of "
-               << (result == nullptr ? MessageId() : result->message_id) << " in " << dialog_id << " from " << source;
-    send_update_chat_last_message(d, source);
-  }
-  return result;
-}
-
-vector<MessageId> MessagesManager::on_get_messages_from_database(Dialog *d, vector<MessageDbDialogMessage> &&messages,
-                                                                 MessageId first_message_id, bool &have_error,
-                                                                 const char *source) {
-  vector<MessageId> result;
-  if (!first_message_id.is_valid() || !td_->dialog_manager_->have_input_peer(d->dialog_id, true, AccessRights::Read)) {
-    return result;
-  }
-  bool need_update = false;
-  bool need_update_dialog_pos = false;
-  auto next_message_id = MessageId::max();
-  Dependencies dependencies;
-  for (auto &message_slice : messages) {
-    auto message = parse_message(d, message_slice.message_id, message_slice.data, false);
-    if (message == nullptr) {
-      have_error = true;
-      break;
-    }
-    if (message->message_id >= next_message_id) {
-      LOG(ERROR) << "Receive " << message->message_id << " after " << next_message_id
-                 << " from database in the history of " << d->dialog_id;
-      have_error = true;
-      break;
-    }
-    next_message_id = message->message_id;
-
-    if (message->message_id < first_message_id) {
-      break;
-    }
-
-    result.push_back(message->message_id);
-    auto *m = get_message(d, message->message_id);
-    if (m == nullptr) {
-      m = add_message_to_dialog(d, std::move(message), true, false, &need_update, &need_update_dialog_pos, source);
-      if (m != nullptr) {
-        add_message_dependencies(dependencies, m);
-      }
-    }
-  }
-  dependencies.resolve_force(td_, source);
-  if (need_update_dialog_pos) {
-    LOG(ERROR) << "Need update chat position after loading of " << result << " in " << d->dialog_id << " from "
-               << source;
-    send_update_chat_last_message(d, source);
-  }
-  return result;
-}
-
-void MessagesManager::fix_new_message(const Dialog *d, Message *m, bool from_database) const {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-
-  DialogId dialog_id = d->dialog_id;
-  if (!has_message_sender_user_id(dialog_id, m) && !m->sender_dialog_id.is_valid()) {
-    if (td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-      m->sender_dialog_id = dialog_id;
-    } else {
-      if (is_discussion_message(dialog_id, m)) {
-        m->sender_dialog_id = m->forward_info->get_last_dialog_id();
-      } else {
-        LOG(ERROR) << "Failed to repair sender chat in " << m->message_id << " in " << dialog_id;
-      }
-    }
-  }
-
-  auto dialog_type = dialog_id.get_type();
-  if (m->sender_user_id == UserManager::get_anonymous_bot_user_id() && !m->sender_dialog_id.is_valid() &&
-      dialog_type == DialogType::Channel && !td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-    m->sender_user_id = UserId();
-    m->sender_dialog_id = dialog_id;
-  }
-
-  if (!from_database && m->message_id.is_valid()) {
-    switch (dialog_type) {
-      case DialogType::Chat:
-      case DialogType::Channel: {
-        m->available_reactions_generation = d->available_reactions_generation;
-        break;
-      }
-      case DialogType::User:
-      case DialogType::SecretChat:
-        break;
-      default:
-        UNREACHABLE();
-        break;
-    }
-    m->history_generation = d->history_generation;
-  }
-
-  if (m->message_id.is_scheduled() && !m->message_id.is_yet_unsent()) {
-    m->top_thread_message_id = MessageId();
-  } else if (m->top_thread_message_id.is_valid()) {
-    if (td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-      m->top_thread_message_id = MessageId();
-    }
-  } else {
-    if (is_thread_message(dialog_id, m)) {
-      m->top_thread_message_id = m->message_id;
-    }
-  }
-
-  m->last_access_date = G()->unix_time();
-
-  if (!from_database && m->contains_mention) {
-    CHECK(!td_->auth_manager_->is_bot());
-    auto message_content_type = m->content->get_type();
-    if (message_content_type == MessageContentType::PinMessage) {
-      if (is_dialog_pinned_message_notifications_disabled(d) ||
-          !get_message_content_pinned_message_id(m->content.get()).is_valid()) {
-        // treat message pin without pinned message as an ordinary message
-        m->contains_mention = false;
-      }
-    } else if (is_dialog_mention_notifications_disabled(d)) {
-      // disable mention notification
-      m->is_mention_notification_disabled = true;
-    }
-  }
-
-  if (m->contains_unread_mention && m->message_id <= d->last_read_all_mentions_message_id) {
-    m->contains_unread_mention = false;
-  }
-
-  if (dialog_type == DialogType::Channel && !m->contains_unread_mention) {
-    auto channel_read_media_period =
-        td_->option_manager_->get_option_integer("channels_read_media_period", (G()->is_test_dc() ? 300 : 7 * 86400));
-    if (m->date < G()->unix_time() - channel_read_media_period) {
-      update_opened_message_content(m->content.get());
-    }
-  }
-
-  if (m->reply_markup != nullptr && !m->reply_markup->is_personal &&
-      (m->reply_markup->type == ReplyMarkup::Type::ForceReply ||
-       m->reply_markup->type == ReplyMarkup::Type::RemoveKeyboard) &&
-      !td_->auth_manager_->is_bot()) {
-    m->reply_markup = nullptr;
-  }
-}
-
-void MessagesManager::remove_message_remove_keyboard_reply_markup(Message *m) const {
-  CHECK(m != nullptr);
-  if (m->reply_markup == nullptr || m->reply_markup->type != ReplyMarkup::Type::RemoveKeyboard ||
-      td_->auth_manager_->is_bot()) {
-    return;
-  }
-  CHECK(m->reply_markup->is_personal);  // otherwise it was removed in fix_new_message
-  m->had_reply_markup = true;
-  m->reply_markup = nullptr;
-}
-
-void MessagesManager::update_replied_by_message_count(DialogId dialog_id, const Message *m, bool is_add) {
-  CHECK(m != nullptr);
-  if (!m->message_id.is_yet_unsent()) {
-    return;
-  }
-  const auto *input_reply_to = get_message_input_reply_to(m);
-  if (input_reply_to == nullptr || input_reply_to->is_empty()) {
-    return;
-  }
-  auto replied_message_full_id = input_reply_to->get_reply_message_full_id(dialog_id);
-  auto replied_message_id = replied_message_full_id.get_message_id();
-  if (!replied_message_id.is_valid() && !replied_message_id.is_valid_scheduled()) {
-    return;
-  }
-  if (!replied_message_id.is_yet_unsent()) {
-    if (!replied_message_id.is_scheduled()) {
-      if (is_add) {
-        replied_by_yet_unsent_messages_[replied_message_full_id]++;
-      } else {
-        auto it = replied_by_yet_unsent_messages_.find(replied_message_full_id);
-        CHECK(it != replied_by_yet_unsent_messages_.end());
-        it->second--;
-        if (it->second == 0) {
-          replied_by_yet_unsent_messages_.erase(it);
-        } else {
-          CHECK(it->second > 0);
-        }
-      }
-    }
-  } else {
-    if (is_add) {
-      replied_yet_unsent_messages_[replied_message_full_id].insert({dialog_id, m->message_id});
-    } else {
-      auto it = replied_yet_unsent_messages_.find(replied_message_full_id);
-      CHECK(it != replied_yet_unsent_messages_.end());
-      size_t erased_count = it->second.erase({dialog_id, m->message_id});
-      CHECK(erased_count > 0);
-      if (it->second.empty()) {
-        replied_yet_unsent_messages_.erase(it);
-      }
-    }
-  }
-}
-
-void MessagesManager::add_message_to_dialog_message_list(const Message *m, Dialog *d, const bool from_database,
-                                                         const bool from_update, const bool need_update,
-                                                         bool *need_update_dialog_pos, const char *source) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto dialog_id = d->dialog_id;
-  auto dialog_type = dialog_id.get_type();
-  auto message_id = m->message_id;
-  if (d->have_full_history && !from_database && !from_update && !message_id.is_local() && !message_id.is_yet_unsent()) {
-    LOG(ERROR) << "Have full history in " << dialog_id << ", but receive unknown " << message_id
-               << " with content of type " << m->content->get_type() << " from " << source << ". Last new is "
-               << d->last_new_message_id << ", last is " << d->last_message_id << ", first database is "
-               << d->first_database_message_id << ", last database is " << d->last_database_message_id
-               << ", last read inbox is " << d->last_read_inbox_message_id << ", last read outbox is "
-               << d->last_read_outbox_message_id << ", last read all mentions is "
-               << d->last_read_all_mentions_message_id << ", last clear history date is " << d->last_clear_history_date
-               << ", last clear history is " << d->last_clear_history_message_id << ", last delete is "
-               << d->deleted_last_message_id << ", delete last message date is " << d->delete_last_message_date
-               << ", have_full_history source = " << d->have_full_history_source;
-    d->have_full_history = false;
-    d->have_full_history_source = 0;
-    on_dialog_updated(dialog_id, "drop have_full_history");
-  }
-
-  if (d->is_empty) {
-    d->is_empty = false;
-    *need_update_dialog_pos = true;
-  }
-
-  if (!(d->have_full_history && from_update) && d->last_message_id.is_valid() &&
-      d->last_message_id < MessageId(ServerMessageId(1)) && message_id >= MessageId(ServerMessageId(1))) {
-    set_dialog_last_message_id(d, MessageId(), "add_message_to_dialog_message_list");
-
-    set_dialog_first_database_message_id(d, MessageId(), "add_message_to_dialog_message_list");
-    set_dialog_last_database_message_id(d, MessageId(), source);
-    d->have_full_history = false;
-    d->have_full_history_source = 0;
-    invalidate_message_indexes(d);
-    d->local_unread_count = 0;  // read all local messages. They will not be reachable anymore
-
-    on_dialog_updated(dialog_id, "add gap to dialog");
-
-    send_update_chat_last_message(d, "add gap to dialog");
-    *need_update_dialog_pos = false;
-  }
-
-  if (from_update && !m->is_failed_to_send && message_id > d->last_new_message_id && !message_id.is_yet_unsent()) {
-    if (dialog_type == DialogType::SecretChat || message_id.is_server()) {
-      // can delete messages, therefore must be called before message attaching/adding
-      set_dialog_last_new_message_id(d, message_id, "add_message_to_dialog_message_list");
-    }
-  }
-
-  auto old_last_message_id = d->last_message_id;
-
-  if (need_update && message_id > d->last_read_inbox_message_id) {
-    if (has_incoming_notification(dialog_id, m)) {
-      int32 server_unread_count = d->server_unread_count;
-      int32 local_unread_count = d->local_unread_count;
-      if (message_id.is_server()) {
-        server_unread_count++;
-      } else {
-        local_unread_count++;
-      }
-      set_dialog_last_read_inbox_message_id(d, MessageId::min(), server_unread_count, local_unread_count, false,
-                                            source);
-    } else {
-      // if non-scheduled outgoing message has identifier one greater than last_read_inbox_message_id,
-      // then definitely there are no unread incoming messages before it
-      if (message_id.is_server() && d->last_read_inbox_message_id.is_valid() &&
-          d->last_read_inbox_message_id.is_server() &&
-          message_id == d->last_read_inbox_message_id.get_next_message_id(MessageType::Server)) {
-        read_history_inbox(d, message_id, 0, "add_message_to_dialog_message_list");
-      }
-    }
-  }
-  if (need_update && m->contains_unread_mention) {
-    set_dialog_unread_mention_count(d, d->unread_mention_count + 1);
-    send_update_chat_unread_mention_count(d);
-  }
-  if (need_update && has_unread_message_reactions(dialog_id, m)) {
-    set_dialog_unread_reaction_count(d, d->unread_reaction_count + 1);
-    send_update_chat_unread_reaction_count(d, "add_message_to_dialog_message_list");
-  }
-  if (need_update) {
-    update_message_count_by_index(d, +1, m);
-  }
-  if (from_update && message_id > d->last_message_id && message_id >= d->last_new_message_id) {
-    set_dialog_last_message_id(d, message_id, "add_message_to_dialog_message_list", m);
-    *need_update_dialog_pos = true;
-  }
-  if (from_update && !message_id.is_yet_unsent() && message_id >= d->last_new_message_id &&
-      (d->last_new_message_id.is_valid() ||
-       (message_id.is_local() && d->last_message_id.is_valid() &&
-        (message_id >= d->last_message_id ||
-         (d->last_database_message_id.is_valid() && message_id > d->last_database_message_id))))) {
-    CHECK(message_id <= d->last_message_id);
-    if (message_id > d->last_database_message_id) {
-      set_dialog_last_database_message_id(d, message_id, "add_message_to_dialog_message_list");
-      if (!d->first_database_message_id.is_valid()) {
-        set_dialog_first_database_message_id(d, message_id, "add_message_to_dialog_message_list");
-        try_restore_dialog_reply_markup(d, m);
-      }
-    }
-  }
-
-  if (!from_update && message_id.is_server() && d->last_message_id.is_valid() && message_id > d->last_message_id) {
-    LOG(INFO) << "Receive " << message_id << ", which is newer than the last " << d->last_message_id
-              << " not from update";
-    set_dialog_last_message_id(d, MessageId(), source);
-    if (message_id > d->deleted_last_message_id) {
-      d->delete_last_message_date = m->date;
-      d->deleted_last_message_id = message_id;
-    }
-
-    set_dialog_first_database_message_id(d, MessageId(), source);
-    set_dialog_last_database_message_id(d, MessageId(), source);
-    d->have_full_history = false;
-    d->have_full_history_source = 0;
-    invalidate_message_indexes(d);
-
-    on_dialog_updated(dialog_id, source);
-
-    send_update_chat_last_message(d, source);
-    *need_update_dialog_pos = false;
-
-    on_dialog_updated(dialog_id, "do delete last message");
-
-    send_closure_later(actor_id(this), &MessagesManager::load_last_dialog_message_later, dialog_id);
-  }
-
-  d->ordered_messages.insert(message_id, from_update, old_last_message_id, source);
-}
-
-// keep synced with add_scheduled_message_to_dialog
-MessagesManager::Message *MessagesManager::add_message_to_dialog(Dialog *d, unique_ptr<Message> message,
-                                                                 const bool from_database, const bool from_update,
-                                                                 bool *need_update, bool *need_update_dialog_pos,
-                                                                 const char *source) {
-  if (!message->message_id.is_valid()) {
-    return add_scheduled_message_to_dialog(d, std::move(message), from_database, from_update, need_update, source);
-  }
-
-  CHECK(need_update != nullptr);
-  CHECK(need_update_dialog_pos != nullptr);
-  CHECK(source != nullptr);
-
-  fix_new_message(d, message.get(), from_database);
-
-  debug_add_message_to_dialog_fail_reason_ = "success";
-
-  DialogId dialog_id = d->dialog_id;
-  MessageId message_id = message->message_id;
-
-  LOG(INFO) << "Adding " << message_id << " of type " << message->content->get_type() << " to " << dialog_id << " from "
-            << source << ". Last new is " << d->last_new_message_id << ", last is " << d->last_message_id
-            << ", from_update = " << from_update;
-
-  if (*need_update) {
-    CHECK(from_update);
-  }
-
-  if (message_id <= d->last_clear_history_message_id) {
-    LOG(INFO) << "Skip adding cleared " << message_id << " to " << dialog_id;
-    if (from_database) {
-      delete_message_from_database(d, message_id, message.get(), true, "cleared full history");
-    }
-    debug_add_message_to_dialog_fail_reason_ = "cleared full history";
-    return nullptr;
-  }
-
-  if (is_deleted_message(d, message_id)) {
-    LOG(INFO) << "Skip adding deleted " << message_id << " to " << dialog_id;
-    debug_add_message_to_dialog_fail_reason_ = "adding deleted message";
-    return nullptr;
-  }
-
-  auto dialog_type = dialog_id.get_type();
-  if (from_update && !message->is_failed_to_send) {
-    if (message_id <= d->last_new_message_id && dialog_type != DialogType::Channel &&
-        (message_id.is_server() || !td_->auth_manager_->is_bot())) {
-      LOG(ERROR) << "New " << message_id << " in " << dialog_id << " from " << source
-                 << " has identifier less than last_new_message_id = " << d->last_new_message_id;
-    }
-  }
-
-  if (!from_update && !message->is_failed_to_send) {
-    MessageId max_message_id;
-    if (message_id.is_server()) {
-      if (d->being_added_message_id.is_valid()) {
-        // if a too new message not from update has failed to preload before being_added_message_id was set,
-        // then it should fail to load even after it is set and last_new_message_id has changed
-        max_message_id = d->being_updated_last_new_message_id;
-      } else {
-        max_message_id = d->last_new_message_id;
-      }
-    } else if (message_id.is_local()) {
-      if (d->being_added_message_id.is_valid()) {
-        max_message_id = d->being_updated_last_database_message_id;
-      } else {
-        max_message_id = d->last_database_message_id;
-      }
-    }
-    if (max_message_id != MessageId() && message_id > max_message_id) {
-      if (!from_database) {
-        LOG(ERROR) << "Ignore " << message_id << " in " << dialog_id << " received not through update from " << source
-                   << ". The maximum allowed is " << max_message_id << ", last is " << d->last_message_id
-                   << ", being added message is " << d->being_added_message_id << ", channel difference "
-                   << debug_channel_difference_dialog_ << " "
-                   << to_string(get_message_object(dialog_id, message.get(), "add_message_to_dialog"));
-
-        if (need_channel_difference_to_add_message(dialog_id, nullptr)) {
-          schedule_get_channel_difference(dialog_id, 0, MessageId(), 0.001, "add_message_to_dialog");
-        }
-      } else {
-        LOG(INFO) << "Ignore " << message_id << " in " << dialog_id << " received not through update from " << source;
-      }
-      debug_add_message_to_dialog_fail_reason_ = "too new message not from update";
-      return nullptr;
-    }
-  }
-  if ((message_id.is_server() || (message_id.is_local() && dialog_type == DialogType::SecretChat)) &&
-      message_id <= d->max_unavailable_message_id) {
-    LOG(INFO) << "Can't add an unavailable " << message_id << " to " << dialog_id;
-    if (from_database) {
-      delete_message_from_database(d, message_id, message.get(), true, "ignore unavailable message");
-    }
-    debug_add_message_to_dialog_fail_reason_ = "ignore unavailable message";
-    return nullptr;
-  }
-
-  auto message_content_type = message->content->get_type();
-  if (message_content_type == MessageContentType::ChatDeleteHistory) {
-    if (!td_->auth_manager_->is_bot()) {
-      auto old_message = delete_message(d, message_id, true, need_update_dialog_pos, "message chat delete history");
-      if (old_message != nullptr) {
-        send_update_delete_messages(dialog_id, {old_message->message_id.get()}, true);
-      }
-      int32 last_message_date = 0;
-      if (d->last_message_id != MessageId()) {
-        auto last_message = get_message(d, d->last_message_id);
-        CHECK(last_message != nullptr);
-        last_message_date = last_message->date - 1;
-      } else {
-        last_message_date = d->last_clear_history_date;
-      }
-      if (message->date > last_message_date) {
-        set_dialog_last_clear_history_date(d, message->date, message_id, "update_last_clear_history_date");
-        *need_update_dialog_pos = true;
-      }
-    }
-    LOG(INFO) << "Process MessageChatDeleteHistory in " << message_id << " in " << dialog_id << " with date "
-              << message->date << " from " << source;
-    if (message_id > d->max_unavailable_message_id) {
-      set_dialog_max_unavailable_message_id(dialog_id, message_id, false, "message chat delete history");
-    }
-    CHECK(!from_database);
-    debug_add_message_to_dialog_fail_reason_ = "skip adding MessageChatDeleteHistory";
-    return nullptr;
-  }
-
-  if (*need_update && message_id <= d->last_new_message_id && !td_->auth_manager_->is_bot()) {
-    *need_update = false;
-  }
-
-  if (*need_update && d->reply_markup_message_id != MessageId()) {
-    UserId bot_user_id;
-    if (message->reply_markup != nullptr && message->reply_markup->type == ReplyMarkup::Type::RemoveKeyboard &&
-        message_id > d->reply_markup_message_id) {
-      bot_user_id = message->sender_user_id;
-    } else {
-      bot_user_id = get_message_content_deleted_user_id(message->content.get());
-      // do not check for is_user_bot to allow deleted bots
-    }
-    if (bot_user_id.is_valid()) {
-      const Message *old_message = get_message_force(d, d->reply_markup_message_id, "add_message_to_dialog 1");
-      if (old_message == nullptr || old_message->sender_user_id == bot_user_id) {
-        set_dialog_reply_markup(d, MessageId());
-      }
-    }
-  }
-
-  // must be after set_dialog_reply_markup(d, MessageId()), but before try_restore_dialog_reply_markup
-  remove_message_remove_keyboard_reply_markup(message.get());
-
-  {
-    Message *m =
-        from_database ? get_message(d, message_id) : get_message_force(d, message_id, "add_message_to_dialog 2");
-    if (m != nullptr) {
-      CHECK(m->message_id == message_id);
-      CHECK(message->message_id == message_id);
-      LOG(INFO) << "Adding already existing " << message_id << " in " << dialog_id << " from " << source;
-      if (*need_update && !td_->auth_manager_->is_bot()) {
-        *need_update = false;
-        if (!G()->use_message_database()) {
-          // can happen if the message is received first through getMessage in an unknown chat without
-          // last_new_message_id and only after that received through getDifference or getChannelDifference
-          if (d->last_new_message_id.is_valid()) {
-            LOG(ERROR) << "Receive again " << (message->is_outgoing ? "outgoing" : "incoming")
-                       << (message->forward_info == nullptr ? " not" : "") << " forwarded " << message_id
-                       << " with content of type " << message_content_type << " in " << dialog_id << " from " << source
-                       << ", current last new is " << d->last_new_message_id << ", last is " << d->last_message_id;
-          }
-        }
-      }
-      if (!from_database && (from_update || message->edit_date >= m->edit_date)) {
-        const int32 INDEX_MASK_MASK = ~(message_search_filter_index_mask(MessageSearchFilter::UnreadMention) |
-                                        message_search_filter_index_mask(MessageSearchFilter::UnreadReaction));
-        auto old_index_mask = get_message_index_mask(dialog_id, m) & INDEX_MASK_MASK;
-        bool was_deleted = delete_active_live_location({dialog_id, m->message_id});
-        auto old_file_ids = get_message_file_ids(m);
-
-        bool need_send_update = update_message(d, m, std::move(message), true);
-        if (!need_send_update) {
-          LOG(INFO) << message_id << " in " << dialog_id << " is not changed";
-        }
-        auto new_index_mask = get_message_index_mask(dialog_id, m) & INDEX_MASK_MASK;
-        if (was_deleted) {
-          if (!try_add_active_live_location(dialog_id, m)) {
-            send_update_active_live_location_messages();
-            save_active_live_locations();
-          } else {
-            schedule_active_live_location_expiration();
-          }
-        }
-        change_message_files(dialog_id, m, old_file_ids, "update existing message");
-        if (need_send_update) {
-          on_message_notification_changed(d, m, source);
-        }
-        update_message_count_by_index(d, -1, old_index_mask & ~new_index_mask);
-        update_message_count_by_index(d, +1, new_index_mask & ~old_index_mask);
-      }
-      return m;
-    }
-  }
-
-  if (*need_update && may_need_message_notification(d, message.get())) {
-    // notification group must be created here because it may force adding new messages from database
-    // in get_message_notification_group_force
-    get_dialog_notification_group_id(d->dialog_id, get_notification_group_info(d, message.get()));
-  }
-  if (*need_update || (!d->last_new_message_id.is_valid() && !message_id.is_yet_unsent() && from_update &&
-                       !message->is_failed_to_send)) {
-    auto pinned_message_id = get_message_content_pinned_message_id(message->content.get());
-    if (pinned_message_id.is_valid() && pinned_message_id < message_id &&
-        have_message_force(d, pinned_message_id, "preload pinned message")) {
-      LOG(INFO) << "Preloaded pinned " << pinned_message_id << " from database";
-    }
-
-    if (d->notification_info != nullptr && d->notification_info->pinned_message_notification_message_id_.is_valid() &&
-        d->notification_info->pinned_message_notification_message_id_ != message_id &&
-        have_message_force(d, d->notification_info->pinned_message_notification_message_id_,
-                           "preload previously pinned message")) {
-      LOG(INFO) << "Preloaded previously pinned " << d->notification_info->pinned_message_notification_message_id_
-                << " from database";
-    }
-  }
-  if (from_update && !message->is_failed_to_send && message->top_thread_message_id.is_valid() &&
-      message->top_thread_message_id != message_id && message_id.is_server() &&
-      have_message_force(d, message->top_thread_message_id, "preload top reply message")) {
-    LOG(INFO) << "Preloaded top thread " << message->top_thread_message_id << " from database";
-
-    Message *top_m = get_message(d, message->top_thread_message_id);
-    CHECK(top_m != nullptr);
-    if (is_active_message_reply_info(dialog_id, top_m->reply_info) && is_discussion_message(dialog_id, top_m)) {
-      auto linked_message_full_id = top_m->forward_info->get_last_message_full_id();
-      if (have_message_force(linked_message_full_id, "preload discussed message")) {
-        LOG(INFO) << "Preloaded discussed " << linked_message_full_id << " from database";
-      }
-    }
-  }
-
-  // there must be no two recursive calls to add_message_to_dialog
-  LOG_CHECK(!d->being_added_message_id.is_valid())
-      << d->dialog_id << " " << d->being_added_message_id << " " << message_id << " " << *need_update << " "
-      << d->last_new_message_id << " " << source;
-  LOG_CHECK(!d->being_deleted_message_id.is_valid())
-      << d->being_deleted_message_id << " " << message_id << " " << source;
-
-  d->being_added_message_id = message_id;
-  d->being_updated_last_new_message_id = d->last_new_message_id;
-  d->being_updated_last_database_message_id = d->last_database_message_id;
-
-  if (d->notification_info != nullptr && d->notification_info->new_secret_chat_notification_id_.is_valid()) {
-    remove_new_secret_chat_notification(d, true);
-  }
-
-  if (message->message_id > d->max_added_message_id) {
-    d->max_added_message_id = message->message_id;
-  }
-
-  if (d->open_count == 0 && !d->has_unload_timeout && is_message_unload_enabled() &&
-      (!d->messages.empty() || !from_database)) {
-    LOG(INFO) << "Schedule unload of " << dialog_id;
-    pending_unload_dialog_timeout_.add_timeout_in(dialog_id.get(), get_next_unload_dialog_delay(d));
-    d->has_unload_timeout = true;
-  }
-
-  if (message->ttl.is_valid() && message->ttl_expires_at != 0) {
-    auto now = Time::now();
-    if (message->ttl_expires_at <= now) {
-      if (dialog_type == DialogType::SecretChat) {
-        LOG(INFO) << "Can't add " << message_id << " with expired " << (now - message->ttl_expires_at)
-                  << " seconds ago self-destruct timer to " << dialog_id << " from " << source;
-        delete_message_from_database(d, message_id, message.get(), true, "delete self-destructed message");
-        debug_add_message_to_dialog_fail_reason_ = "delete self-destructed message";
-        d->being_added_message_id = MessageId();
-        return nullptr;
-      } else {
-        on_message_ttl_expired_impl(d, message.get(), false);
-        message_content_type = message->content->get_type();
-        if (from_database) {
-          on_message_changed(d, message.get(), false, "add expired message to dialog");
-        }
-      }
-    } else {
-      ttl_register_message(dialog_id, message.get(), now);
-    }
-  }
-  if (message->ttl_period > 0) {
-    CHECK(dialog_type != DialogType::SecretChat);
-    auto server_time = G()->server_time();
-    if (message->date + message->ttl_period <= server_time) {
-      LOG(INFO) << "Can't add auto-deleted " << message_id << " sent at " << message->date << " with auto-delete time "
-                << message->ttl_period << " to " << dialog_id << " from " << source;
-      delete_message_from_database(d, message_id, message.get(), true, "delete auto-deleted message");
-      debug_add_message_to_dialog_fail_reason_ = "delete auto-deleted message";
-      d->being_added_message_id = MessageId();
-      return nullptr;
-    } else {
-      ttl_period_register_message(dialog_id, message.get(), server_time);
-    }
-  }
-
-  if (!message->are_media_timestamp_entities_found) {
-    message->are_media_timestamp_entities_found = true;
-    if (from_database && !td_->auth_manager_->is_bot()) {  // otherwise the entities were found in get_message_text
-      auto text = get_message_content_text_mutable(message->content.get());
-      if (text != nullptr) {
-        fix_formatted_text(text->text, text->entities, true, true, true, false, false).ensure();
-        // always call to save are_media_timestamp_entities_found flag
-        on_message_changed(d, message.get(), false, "save media timestamp entities");
-      }
-    }
-  }
-
-  LOG(INFO) << "Adding not found " << message_id << " to " << dialog_id << " from " << source;
-  if (G()->keep_media_order() && message_id.is_yet_unsent() && !message->via_bot_user_id.is_valid() &&
-      !message->hide_via_bot && !message->is_copy) {
-    auto queue_id = ChainId(dialog_id, message_content_type).get();
-    if (queue_id & 1) {
-      LOG(INFO) << "Add " << message_id << " from " << source << " to queue " << queue_id;
-      auto &queue = yet_unsent_media_queues_[queue_id];
-      queue.dialog_id_ = dialog_id;
-      queue.queue_[message_id];  // reserve place for promise
-      if (!td_->auth_manager_->is_bot()) {
-        pending_send_dialog_action_timeout_.add_timeout_in(dialog_id.get(), 1.0);
-      }
-    }
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    if (*need_update) {
-      // notification must be added before updating unread_count to have correct total notification count
-      // in get_message_notification_group_force
-      add_new_message_notification(d, message.get(), false);
-    } else {
-      if (from_database && message->notification_id.is_valid() && is_from_mention_notification_group(message.get()) &&
-          is_message_notification_active(d, message.get()) && is_dialog_mention_notifications_disabled(d) &&
-          d->notification_info != nullptr &&
-          message_id != d->notification_info->pinned_message_notification_message_id_) {
-        auto notification_id = message->notification_id;
-        VLOG(notifications) << "Remove mention " << notification_id << " in " << message_id << " in " << dialog_id;
-        message->notification_id = NotificationId();
-        if (d->notification_info->mention_notification_group_.get_last_notification_id() == notification_id) {
-          // last notification is deleted, need to find new last notification
-          fix_dialog_last_notification_id(d, true, message_id);
-        }
-
-        send_closure_later(G()->notification_manager(), &NotificationManager::remove_notification,
-                           d->notification_info->mention_notification_group_.get_group_id(), notification_id, false,
-                           false, Promise<Unit>(), "remove disabled mention notification");
-
-        on_message_changed(d, message.get(), false, "remove_mention_notification");
-      }
-    }
-  }
-
-  const Message *m = message.get();
-
-  if (!td_->auth_manager_->is_bot()) {
-    add_message_to_dialog_message_list(m, d, from_database, from_update, *need_update, need_update_dialog_pos, source);
-  }
-
-  update_replied_by_message_count(dialog_id, m, true);
-
-  if (!from_database && !m->message_id.is_yet_unsent()) {
-    add_message_to_database(d, m, "add_message_to_dialog");
-  }
-
-  if (from_update && !m->is_failed_to_send && dialog_type == DialogType::Channel) {
-    auto now = max(G()->unix_time(), m->date);
-    if (m->date < now - 2 * 86400 && Slice(source) == Slice("updateNewChannelMessage")) {
-      // if the message is pretty old, we might have missed the update that the message has already been read
-      repair_channel_server_unread_count(d);
-    }
-    if (m->date + 3600 >= now && m->is_outgoing) {
-      auto channel_id = dialog_id.get_channel_id();
-      auto slow_mode_delay = td_->chat_manager_->get_channel_slow_mode_delay(channel_id, "add_message_to_dialog");
-      auto status = td_->chat_manager_->get_channel_status(dialog_id.get_channel_id());
-      if (m->date + slow_mode_delay > now && !status.is_administrator()) {
-        td_->chat_manager_->on_update_channel_slow_mode_next_send_date(channel_id, m->date + slow_mode_delay);
-      }
-    }
-    if (m->date > now - 14 * 86400) {
-      td_->chat_manager_->remove_inactive_channel(dialog_id.get_channel_id());
-    }
-  }
-
-  if (message_content_type == MessageContentType::ContactRegistered && !d->has_contact_registered_message) {
-    d->has_contact_registered_message = true;
-    on_dialog_updated(dialog_id, "update_has_contact_registered_message");
-  }
-
-  if (m->sender_user_id.is_valid()) {
-    auto story_full_id = get_message_content_story_full_id(td_, m->content.get());
-    if (story_full_id.is_valid()) {
-      td_->story_manager_->on_story_replied(story_full_id, m->sender_user_id);
-    }
-    if (m->reply_to_story_full_id.is_valid()) {
-      td_->story_manager_->on_story_replied(m->reply_to_story_full_id, m->sender_user_id);
-    }
-  }
-
-  reget_message_from_server_if_needed(dialog_id, m);
-
-  add_message_file_sources(dialog_id, m, "add_message_to_dialog");
-
-  register_message_content(td_, m->content.get(), {dialog_id, m->message_id}, "add_message_to_dialog");
-
-  register_message_reply(dialog_id, m);
-
-  if (*need_update && m->message_id.is_server()) {
-    switch (message_content_type) {
-      case MessageContentType::PinMessage: {
-        auto pinned_message_id = get_message_content_pinned_message_id(m->content.get());
-        if (d->is_last_pinned_message_id_inited && pinned_message_id > d->last_pinned_message_id) {
-          set_dialog_last_pinned_message_id(d, pinned_message_id);
-        }
-        break;
-      }
-      case MessageContentType::SetBackground:
-        set_dialog_background(d, get_message_content_my_background_info(
-                                     m->content.get(), m->is_outgoing || dialog_id.get_type() != DialogType::User));
-        break;
-      case MessageContentType::ChatSetTheme:
-        set_dialog_theme_name(d, get_message_content_theme_name(m->content.get()));
-        break;
-      case MessageContentType::ChatCreate:
-      case MessageContentType::ChannelCreate:
-        if (m->ttl_period > 0) {
-          set_dialog_message_ttl(d, MessageTtl(m->ttl_period));
-        }
-        break;
-      default:
-        // nothing to do
-        break;
-    }
-  }
-
-  if (from_update && !m->is_failed_to_send) {
-    speculatively_update_active_group_call_id(d, m);
-    speculatively_update_channel_participants(dialog_id, m);
-    update_forum_topic_info_by_service_message_content(td_, m->content.get(), dialog_id, m->top_thread_message_id);
-    update_sent_message_contents(dialog_id, m);
-    update_used_hashtags(dialog_id, m);
-    update_top_dialogs(dialog_id, m);
-    cancel_dialog_action(dialog_id, m);
-    update_has_outgoing_messages(dialog_id, m);
-    if (message_content_type == MessageContentType::StarGiftUnique) {
-      get_upgraded_gift_emoji_statuses(td_, Auto());
-    }
-
-    if (!td_->auth_manager_->is_bot() && d->messages.empty() && !m->is_outgoing &&
-        dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-      switch (dialog_type) {
-        case DialogType::User:
-          td_->user_manager_->invalidate_user_full(dialog_id.get_user_id());
-          td_->user_manager_->reload_user_full(dialog_id.get_user_id(), Promise<Unit>(), "add_message_to_dialog");
-          break;
-        case DialogType::Chat:
-        case DialogType::Channel:
-          // nothing to do
-          break;
-        case DialogType::SecretChat: {
-          auto user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-          if (user_id.is_valid()) {
-            td_->user_manager_->invalidate_user_full(user_id);
-            td_->user_manager_->reload_user_full(user_id, Promise<Unit>(), "add_message_to_dialog");
-          }
-          break;
-        }
-        case DialogType::None:
-        default:
-          UNREACHABLE();
-      }
-    }
-  }
-
-  if (m->is_topic_message) {
-    td_->forum_topic_manager_->on_topic_message_count_changed(dialog_id, m->top_thread_message_id, +1);
-  }
-
-  Message *result_message = message.get();
-  d->messages.set(message_id, std::move(message));
-
-  d->message_lru_list.put_back(result_message);
-
-  switch (dialog_type) {
-    case DialogType::User:
-    case DialogType::Chat:
-      if (m->message_id.is_server()) {
-        message_id_to_dialog_id_.set(m->message_id, dialog_id);
-      }
-      break;
-    case DialogType::Channel:
-      if (!td_->auth_manager_->is_bot() && m->message_id.is_server()) {
-        td_->user_manager_->register_message_users({dialog_id, m->message_id}, get_message_user_ids(m));
-        td_->chat_manager_->register_message_channels({dialog_id, m->message_id}, get_message_channel_ids(m));
-      }
-      break;
-    case DialogType::SecretChat:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  if (m->message_id.is_yet_unsent() || dialog_type == DialogType::SecretChat) {
-    add_random_id_to_message_id_correspondence(d, m->random_id, m->message_id);
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    if (m->message_id.is_yet_unsent() && !m->message_id.is_scheduled() && m->top_thread_message_id.is_valid()) {
-      auto is_inserted = yet_unsent_thread_message_ids_[MessageFullId{dialog_id, m->top_thread_message_id}]
-                             .insert(m->message_id)
-                             .second;
-      CHECK(is_inserted);
-    }
-
-    if (dialog_type == DialogType::User && !m->is_outgoing) {
-      td_->user_manager_->allow_send_message_to_user(dialog_id.get_user_id());
-    }
-
-    if (m->notification_id.is_valid()) {
-      auto notification_info = add_dialog_notification_info(d);
-      add_notification_id_to_message_id_correspondence(notification_info, m->notification_id, m->message_id);
-    }
-
-    try_add_bot_command_message_id(dialog_id, m);
-
-    // must be called after the message is added to correctly update replies
-    update_message_max_reply_media_timestamp(d, result_message, false);
-    update_message_max_own_media_timestamp(d, result_message);
-
-    if (from_update && m->saved_messages_topic_id.is_valid()) {
-      CHECK(dialog_id == td_->dialog_manager_->get_my_dialog_id());
-      td_->saved_messages_manager_->set_topic_last_message_id(m->saved_messages_topic_id, m->message_id, m->date);
-    }
-  }
-
-  result_message->debug_source = source;
-  d->being_added_message_id = MessageId();
-
-  added_message_count_++;
-
-  return result_message;
-}
-
-MessagesManager::Message *MessagesManager::add_scheduled_message_to_dialog(Dialog *d, unique_ptr<Message> message,
-                                                                           bool from_database, bool from_update,
-                                                                           bool *need_update, const char *source) {
-  CHECK(message != nullptr);
-  CHECK(d != nullptr);
-  CHECK(need_update != nullptr);
-  CHECK(source != nullptr);
-
-  DialogId dialog_id = d->dialog_id;
-  MessageId message_id = message->message_id;
-  CHECK(message_id.is_valid_scheduled());
-  CHECK(!message->notification_id.is_valid());
-  CHECK(!message->removed_notification_id.is_valid());
-
-  fix_new_message(d, message.get(), from_database);
-
-  debug_add_message_to_dialog_fail_reason_ = "success";
-
-  LOG(INFO) << "Adding " << message_id << " of type " << message->content->get_type() << " to " << dialog_id << " from "
-            << source;
-
-  if (is_deleted_message(d, message_id)) {
-    LOG(INFO) << "Skip adding deleted " << message_id << " to " << dialog_id << " from " << source;
-    debug_add_message_to_dialog_fail_reason_ = "adding deleted scheduled message";
-    return nullptr;
-  }
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    LOG(ERROR) << "Tried to add " << message_id << " to " << dialog_id << " from " << source;
-    debug_add_message_to_dialog_fail_reason_ = "skip adding scheduled message to secret chat";
-    return nullptr;
-  }
-  if (message->ttl != MessageSelfDestructType() || message->ttl_expires_at != 0) {
-    LOG(ERROR) << "Tried to add " << message_id << " with " << message->ttl << '/' << message->ttl_expires_at << " to "
-               << dialog_id << " from " << source;
-    debug_add_message_to_dialog_fail_reason_ = "skip adding secret scheduled message";
-    return nullptr;
-  }
-  if (message->ttl_period != 0) {
-    LOG(ERROR) << "Tried to add " << message_id << " with auto-delete timer " << message->ttl_period << " to "
-               << dialog_id << " from " << source;
-    debug_add_message_to_dialog_fail_reason_ = "skip adding auto-deleting scheduled message";
-    return nullptr;
-  }
-
-  auto message_content_type = message->content->get_type();
-  if (is_service_message_content(message_content_type) || message_content_type == MessageContentType::LiveLocation ||
-      is_expired_message_content(message_content_type)) {
-    LOG(ERROR) << "Tried to add " << message_id << " of type " << message_content_type << " to " << dialog_id
-               << " from " << source;
-    debug_add_message_to_dialog_fail_reason_ = "skip adding message of unexpected type";
-    return nullptr;
-  }
-
-  {
-    Message *m = from_database ? get_message(d, message_id)
-                               : get_message_force(d, message_id, "add_scheduled_message_to_dialog");
-    if (m != nullptr) {
-      auto old_message_id = m->message_id;
-      LOG(INFO) << "Adding already existing " << old_message_id << " in " << dialog_id << " from " << source;
-      message->message_id = old_message_id;
-      if (!from_database) {
-        auto old_file_ids = get_message_file_ids(m);
-        update_message(d, m, std::move(message), true);
-        change_message_files(dialog_id, m, old_file_ids, "update existing scheduled message");
-      }
-      if (old_message_id != message_id) {
-        being_readded_message_id_ = {dialog_id, old_message_id};
-        message = do_delete_scheduled_message(d, old_message_id, false, "add_scheduled_message_to_dialog");
-        CHECK(message != nullptr);
-        send_update_delete_messages(dialog_id, {message->message_id.get()}, false);
-        message->message_id = message_id;
-        from_database = false;
-      } else {
-        *need_update = false;
-        return m;
-      }
-    }
-  }
-
-  LOG(INFO) << "Adding not found " << message_id << " to " << dialog_id << " from " << source;
-
-  const Message *m = message.get();
-
-  update_replied_by_message_count(dialog_id, m, true);
-
-  if (!from_database && !m->message_id.is_yet_unsent()) {
-    add_message_to_database(d, m, "add_scheduled_message_to_dialog");
-  }
-
-  reget_message_from_server_if_needed(dialog_id, m);
-
-  add_message_file_sources(dialog_id, m, "add_scheduled_message_to_dialog");
-
-  register_message_content(td_, m->content.get(), {dialog_id, m->message_id}, "add_scheduled_message_to_dialog");
-
-  if (m->message_id.is_yet_unsent()) {
-    add_random_id_to_message_id_correspondence(d, m->random_id, m->message_id);
-  }
-
-  // must be called after register_message_content, which loads web page
-  update_message_max_reply_media_timestamp(d, message.get(), false);
-  update_message_max_own_media_timestamp(d, message.get());
-
-  register_message_reply(dialog_id, m);
-
-  if (from_update && !m->is_failed_to_send) {
-    update_sent_message_contents(dialog_id, m);
-    update_used_hashtags(dialog_id, m);
-    update_has_outgoing_messages(dialog_id, m);
-  }
-
-  if (m->is_topic_message) {
-    td_->forum_topic_manager_->on_topic_message_count_changed(dialog_id, m->top_thread_message_id, +1);
-  }
-
-  auto *scheduled_messages = add_dialog_scheduled_messages(d);
-  if (m->message_id.is_scheduled_server()) {
-    auto is_inserted =
-        scheduled_messages->scheduled_message_date_.emplace(m->message_id.get_scheduled_server_message_id(), m->date)
-            .second;
-    CHECK(is_inserted);
-  }
-
-  auto result_message = message.get();
-  auto is_inserted =
-      scheduled_messages->scheduled_messages_.emplace(result_message->message_id, std::move(message)).second;
-  CHECK(is_inserted);
-  being_readded_message_id_ = MessageFullId();
-  return result_message;
-}
-
-void MessagesManager::register_new_local_message_id(Dialog *d, const Message *m) {
-  if (m == nullptr) {
-    return;
-  }
-  if (m->message_id.is_scheduled()) {
-    return;
-  }
-  CHECK(m->message_id.is_local());
-  if (m->top_thread_message_id.is_valid() && m->top_thread_message_id != m->message_id) {
-    Message *top_m = get_message_force(d, m->top_thread_message_id, "register_new_local_message_id");
-    if (top_m != nullptr && top_m->top_thread_message_id == top_m->message_id) {
-      auto it = std::lower_bound(top_m->local_thread_message_ids.begin(), top_m->local_thread_message_ids.end(),
-                                 m->message_id);
-      if (it == top_m->local_thread_message_ids.end() || *it != m->message_id) {
-        top_m->local_thread_message_ids.insert(it, m->message_id);
-        if (top_m->local_thread_message_ids.size() >= 1000) {
-          top_m->local_thread_message_ids.erase(top_m->local_thread_message_ids.begin());
-        }
-        on_message_changed(d, top_m, false, "register_new_local_message_id");
-      }
-    }
-  }
-}
-
-void MessagesManager::on_message_changed(const Dialog *d, const Message *m, bool need_send_update, const char *source) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  if (need_send_update) {
-    send_update_last_message_if_needed(d, m, source);
-  }
-
-  if (m->message_id == d->last_database_message_id) {
-    on_dialog_updated(d->dialog_id, source);
-  }
-
-  if (!m->message_id.is_yet_unsent()) {
-    add_message_to_database(d, m, source);
-  }
-}
-
-void MessagesManager::on_message_notification_changed(Dialog *d, const Message *m, const char *source) {
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  if (m->notification_id.is_valid() && is_message_notification_active(d, m)) {
-    auto &group_info = get_notification_group_info(d, m);
-    if (group_info.is_valid()) {
-      send_closure_later(G()->notification_manager(), &NotificationManager::edit_notification,
-                         group_info.get_group_id(), m->notification_id,
-                         create_new_message_notification(
-                             m->message_id, is_message_preview_enabled(d, m, is_from_mention_notification_group(m))));
-    }
-  }
-  if (m->is_pinned && d->notification_info != nullptr &&
-      d->notification_info->pinned_message_notification_message_id_.is_valid() &&
-      d->notification_info->mention_notification_group_.is_valid()) {
-    auto pinned_message = get_message_force(d, d->notification_info->pinned_message_notification_message_id_, source);
-    if (pinned_message != nullptr && pinned_message->notification_id.is_valid() &&
-        is_message_notification_active(d, pinned_message) &&
-        get_message_content_pinned_message_id(pinned_message->content.get()) == m->message_id) {
-      send_closure_later(
-          G()->notification_manager(), &NotificationManager::edit_notification,
-          d->notification_info->mention_notification_group_.get_group_id(), pinned_message->notification_id,
-          create_new_message_notification(pinned_message->message_id, is_message_preview_enabled(d, m, true)));
-    }
-  }
-}
-
-void MessagesManager::add_message_to_database(const Dialog *d, const Message *m, const char *source) {
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  CHECK(m != nullptr);
-  MessageId message_id = m->message_id;
-
-  if (message_id.is_scheduled()) {
-    LOG(INFO) << "Add " << MessageFullId(d->dialog_id, message_id) << " to database from " << source;
-
-    set_dialog_has_scheduled_database_messages(d->dialog_id, true);
-    G()->td_db()->get_message_db_async()->add_scheduled_message({d->dialog_id, message_id}, log_event_store(*m),
-                                                                Auto());  // TODO Promise
-    return;
-  }
-  LOG_CHECK(message_id.is_server() || message_id.is_local()) << source;
-
-  LOG(INFO) << "Add " << MessageFullId(d->dialog_id, message_id) << " to database from " << source;
-
-  ServerMessageId unique_message_id;
-  int64 random_id = 0;
-  int64 search_id = 0;
-  string text;
-  switch (d->dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-      if (message_id.is_server()) {
-        unique_message_id = message_id.get_server_message_id();
-      }
-      // FOR DEBUG
-      // text = get_message_search_text(m);
-      // if (!text.empty()) {
-      //   search_id = (static_cast<int64>(m->date) << 32) | static_cast<uint32>(Random::secure_int32());
-      // }
-      break;
-    case DialogType::Channel:
-      break;
-    case DialogType::SecretChat:
-      random_id = m->random_id;
-      text = get_message_search_text(m);
-      if (!text.empty()) {
-        search_id = (static_cast<int64>(m->date) << 32) | static_cast<uint32>(m->random_id);
-      }
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  int32 ttl_expires_at = 0;
-  if (m->ttl_expires_at != 0) {
-    ttl_expires_at = static_cast<int32>(m->ttl_expires_at - Time::now() + G()->server_time()) + 1;
-  }
-  if (m->ttl_period != 0 && (ttl_expires_at == 0 || m->date + m->ttl_period < ttl_expires_at)) {
-    ttl_expires_at = m->date + m->ttl_period;
-  }
-  G()->td_db()->get_message_db_async()->add_message({d->dialog_id, message_id}, unique_message_id,
-                                                    get_message_sender(m), random_id, ttl_expires_at,
-                                                    get_message_index_mask(d->dialog_id, m), search_id, text,
-                                                    m->notification_id, m->top_thread_message_id, log_event_store(*m),
-                                                    Auto());  // TODO Promise
-}
-
-void MessagesManager::delete_all_dialog_notifications(Dialog *d, MessageId max_message_id, const char *source) {
-  CHECK(d != nullptr);
-  if (d->notification_info == nullptr) {
-    return;
-  }
-  if (d->notification_info->new_secret_chat_notification_id_.is_valid()) {
-    remove_new_secret_chat_notification(d, true);
-  }
-  if (d->notification_info->pinned_message_notification_message_id_.is_valid() &&
-      d->notification_info->pinned_message_notification_message_id_ <= max_message_id) {
-    remove_dialog_pinned_message_notification(d, source);
-  }
-  remove_message_dialog_notifications(d, max_message_id, false, source);
-  remove_message_dialog_notifications(d, max_message_id, true, source);
-}
-
-void MessagesManager::delete_all_dialog_messages_from_database(Dialog *d, MessageId max_message_id,
-                                                               const char *source) {
-  CHECK(d != nullptr);
-  CHECK(max_message_id.is_valid());
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  auto dialog_id = d->dialog_id;
-  LOG(INFO) << "Delete all messages in " << dialog_id << " from database up to " << max_message_id << " from "
-            << source;
-  /*
-  if (dialog_id.get_type() == DialogType::User && max_message_id.is_server()) {
-    bool need_save = false;
-    int i = 0;
-    for (auto &first_message_id : calls_db_state_.first_calls_database_message_id_by_index) {
-      if (first_message_id <= max_message_id) {
-        first_message_id = max_message_id.get_next_server_message_id();
-        calls_db_state_.message_count_by_index[i] = -1;
-        need_save = true;
-      }
-      i++;
-    }
-    if (need_save) {
-      save_calls_db_state();
-    }
-  }
-  */
-  G()->td_db()->get_message_db_async()->delete_all_dialog_messages(dialog_id, max_message_id,
-                                                                   Auto());  // TODO Promise
-}
-
-class MessagesManager::DeleteMessageLogEvent {
- public:
-  LogEvent::Id id_{0};
-  MessageFullId message_full_id_;
-  std::vector<FileId> file_ids_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_file_ids = !file_ids_.empty();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_file_ids);
-    END_STORE_FLAGS();
-
-    td::store(message_full_id_, storer);
-    if (has_file_ids) {
-      td::store(file_ids_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_file_ids;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_file_ids);
-    END_PARSE_FLAGS();
-
-    td::parse(message_full_id_, parser);
-    if (has_file_ids) {
-      td::parse(file_ids_, parser);
-    }
-  }
-};
-
-void MessagesManager::delete_message_files(DialogId dialog_id, const Message *m) const {
-  for (auto file_id : get_message_file_ids(m)) {
-    if (need_delete_file({dialog_id, m->message_id}, file_id)) {
-      send_closure(G()->file_manager(), &FileManager::delete_file, file_id, Promise<Unit>(), "delete_message_files");
-    }
-  }
-}
-
-bool MessagesManager::need_delete_file(MessageFullId message_full_id, FileId file_id) const {
-  if (being_readded_message_id_ == message_full_id || td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  auto main_file_id = td_->file_manager_->get_file_view(file_id).get_main_file_id();
-  auto message_full_ids = td_->file_reference_manager_->get_some_message_file_sources(main_file_id);
-  LOG(INFO) << "Receive " << message_full_ids << " as sources for file " << main_file_id << "/" << file_id << " from "
-            << message_full_id;
-  for (const auto &other_full_message_id : message_full_ids) {
-    if (other_full_message_id != message_full_id) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-bool MessagesManager::need_delete_message_files(DialogId dialog_id, const Message *m) const {
-  if (m == nullptr || td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  auto dialog_type = dialog_id.get_type();
-  if (!m->message_id.is_scheduled() && !m->message_id.is_server() && dialog_type != DialogType::SecretChat) {
-    return false;
-  }
-  if (being_readded_message_id_ == MessageFullId{dialog_id, m->message_id}) {
-    return false;
-  }
-
-  if (m->forward_info != nullptr && m->forward_info->get_last_dialog_id().is_valid()) {
-    // this function must not try to load the message, because it can be called from
-    // do_delete_message or add_scheduled_message_to_dialog
-    const Message *old_m = get_message(m->forward_info->get_last_message_full_id());
-    if (old_m != nullptr && get_message_file_ids(old_m) == get_message_file_ids(m)) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-void MessagesManager::delete_message_from_database(Dialog *d, MessageId message_id, const Message *m,
-                                                   bool is_permanently_deleted, const char *source) {
-  CHECK(d != nullptr);
-  if (!message_id.is_valid() && !message_id.is_valid_scheduled()) {
-    return;
-  }
-
-  if (message_id.is_yet_unsent()) {
-    return;
-  }
-
-  if (m != nullptr && !m->message_id.is_scheduled() && m->message_id.is_local() &&
-      m->top_thread_message_id.is_valid() && m->top_thread_message_id != m->message_id) {
-    // must not load the message from the database
-    Message *top_m = get_message(d, m->top_thread_message_id);
-    if (top_m != nullptr && top_m->top_thread_message_id == top_m->message_id) {
-      auto it = std::lower_bound(top_m->local_thread_message_ids.begin(), top_m->local_thread_message_ids.end(),
-                                 m->message_id);
-      if (it != top_m->local_thread_message_ids.end() && *it == m->message_id) {
-        top_m->local_thread_message_ids.erase(it);
-        on_message_changed(d, top_m, false, "delete_message_from_database");
-      }
-    }
-  }
-
-  if (is_permanently_deleted) {
-    if (message_id.is_scheduled() && message_id.is_valid_scheduled() && message_id.is_scheduled_server()) {
-      add_dialog_scheduled_messages(d)->deleted_scheduled_server_message_ids_.insert(
-          message_id.get_scheduled_server_message_id());
-    } else {
-      // don't store failed to send message identifiers for bots to reduce memory usage
-      if (m == nullptr || !td_->auth_manager_->is_bot() || !m->is_failed_to_send) {
-        d->deleted_message_ids.insert(message_id);
-        send_closure_later(actor_id(this),
-                           &MessagesManager::update_message_max_reply_media_timestamp_in_replied_messages, d->dialog_id,
-                           message_id);
-      }
-    }
-
-    if (message_id.is_any_server()) {
-      auto old_message_id = find_old_message_id(d->dialog_id, message_id);
-      if (old_message_id.is_valid()) {
-        bool have_old_message = get_message(d, old_message_id) != nullptr;
-        LOG(WARNING) << "Sent " << MessageFullId{d->dialog_id, message_id}
-                     << " was deleted before it was received. Have old " << old_message_id << " = " << have_old_message;
-        send_closure_later(actor_id(this), &MessagesManager::delete_messages, d->dialog_id,
-                           vector<MessageId>{old_message_id}, false, Promise<Unit>());
-        delete_update_message_id(d->dialog_id, message_id);
-      }
-    }
-  }
-
-  if (m != nullptr && m->notification_id.is_valid()) {
-    CHECK(!message_id.is_scheduled());
-    auto from_mentions = is_from_mention_notification_group(m);
-    auto &group_info = get_notification_group_info(d, from_mentions);
-
-    if (group_info.is_valid()) {
-      if (group_info.get_last_notification_id() == m->notification_id) {
-        // last notification is deleted, need to find new last notification
-        fix_dialog_last_notification_id(d, from_mentions, m->message_id);
-      }
-      if (is_message_notification_active(d, m)) {
-        send_closure_later(G()->notification_manager(), &NotificationManager::remove_notification,
-                           group_info.get_group_id(), m->notification_id, true, false, Promise<Unit>(),
-                           "delete_message_from_database");
-      }
-    }
-  } else if (!message_id.is_scheduled() && message_id > d->last_new_message_id && d->notification_info != nullptr) {
-    send_closure_later(G()->notification_manager(), &NotificationManager::remove_temporary_notification_by_object_id,
-                       d->notification_info->message_notification_group_.get_group_id(), message_id, false,
-                       "delete_message_from_database");
-    send_closure_later(G()->notification_manager(), &NotificationManager::remove_temporary_notification_by_object_id,
-                       d->notification_info->mention_notification_group_.get_group_id(), message_id, false,
-                       "delete_message_from_database");
-  }
-
-  auto need_delete_files = need_delete_message_files(d->dialog_id, m);
-  if (need_delete_files) {
-    delete_message_files(d->dialog_id, m);
-  }
-
-  if (G()->use_message_database()) {
-    DeleteMessageLogEvent log_event;
-
-    log_event.message_full_id_ = {d->dialog_id, message_id};
-
-    if (need_delete_files) {
-      log_event.file_ids_ = get_message_file_ids(m);
-    }
-
-    do_delete_message_log_event(log_event);
-  }
-
-  on_message_deleted_from_database(d, m, source);
-}
-
-void MessagesManager::do_delete_message_log_event(const DeleteMessageLogEvent &log_event) const {
-  CHECK(G()->use_message_database());
-
-  Promise<Unit> db_promise;
-  if (!log_event.file_ids_.empty()) {
-    auto log_event_id = log_event.id_;
-    if (log_event_id == 0) {
-      log_event_id =
-          binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteMessage, get_log_event_storer(log_event));
-    }
-
-    MultiPromiseActorSafe mpas{"DeleteMessageMultiPromiseActor"};
-    mpas.add_promise(
-        PromiseCreator::lambda([log_event_id, context_weak_ptr = get_context_weak_ptr()](Result<Unit> result) {
-          auto context = context_weak_ptr.lock();
-          if (result.is_error() || context == nullptr) {
-            return;
-          }
-          CHECK(context->get_id() == Global::ID);
-          auto global = static_cast<Global *>(context.get());
-          if (global->close_flag()) {
-            return;
-          }
-
-          binlog_erase(global->td_db()->get_binlog(), log_event_id);
-        }));
-
-    auto lock = mpas.get_promise();
-    for (auto file_id : log_event.file_ids_) {
-      if (need_delete_file(log_event.message_full_id_, file_id)) {
-        send_closure(G()->file_manager(), &FileManager::delete_file, file_id, mpas.get_promise(),
-                     "do_delete_message_log_event");
-      }
-    }
-    db_promise = mpas.get_promise();
-    lock.set_value(Unit());
-  }
-
-  // message may not exist in the dialog
-  LOG(INFO) << "Delete " << log_event.message_full_id_ << " from database";
-  G()->td_db()->get_message_db_async()->delete_message(log_event.message_full_id_, std::move(db_promise));
-}
-
-int64 MessagesManager::get_message_reply_to_random_id(const Dialog *d, const Message *m) const {
-  auto same_chat_reply_to_message_id = m->replied_message_info.get_same_chat_reply_to_message_id(false);
-  if (same_chat_reply_to_message_id != MessageId() && m->message_id.is_yet_unsent() &&
-      (d->dialog_id.get_type() == DialogType::SecretChat || same_chat_reply_to_message_id.is_yet_unsent())) {
-    auto *replied_m = get_message(d, same_chat_reply_to_message_id);
-    if (replied_m != nullptr) {
-      return replied_m->random_id;
-    }
-  }
-  return 0;
-}
-
-bool MessagesManager::update_message(Dialog *d, Message *old_message, unique_ptr<Message> new_message,
-                                     bool is_message_in_dialog) {
-  CHECK(d != nullptr);
-  CHECK(old_message != nullptr);
-  CHECK(new_message != nullptr);
-  LOG_CHECK(old_message->message_id == new_message->message_id)
-      << d->dialog_id << ' ' << old_message->message_id << ' ' << new_message->message_id << ' '
-      << is_message_in_dialog;
-
-  DialogId dialog_id = d->dialog_id;
-  MessageId message_id = old_message->message_id;
-  auto old_content_type = old_message->content->get_type();
-  auto new_content_type = new_message->content->get_type();
-  bool is_scheduled = message_id.is_scheduled();
-  bool need_send_update = false;
-  bool is_new_available =
-      new_content_type != MessageContentType::ChatDeleteHistory && new_message->restriction_reasons.empty();
-  bool replace_legacy = (old_message->legacy_layer != 0 &&
-                         (new_message->legacy_layer == 0 || old_message->legacy_layer < new_message->legacy_layer)) ||
-                        old_content_type == MessageContentType::Unsupported;
-  bool was_visible_message_reply_info = is_visible_message_reply_info(dialog_id, old_message);
-  if (old_message->date != new_message->date) {
-    if (new_message->date > 0 && (is_scheduled || !is_message_in_dialog)) {
-      if (!(is_scheduled || message_id.is_yet_unsent() ||
-            (message_id.is_server() && message_id.get_server_message_id().get() == 1) ||
-            old_content_type == MessageContentType::ChannelMigrateFrom ||
-            old_content_type == MessageContentType::ChannelCreate)) {
-        LOG(ERROR) << "Date has changed for " << message_id << " in " << dialog_id << " from " << old_message->date
-                   << " to " << new_message->date << ", message content type is " << old_content_type << '/'
-                   << new_content_type;
-      }
-      CHECK(old_message->date > 0);
-      LOG(DEBUG) << "Message date has changed from " << old_message->date << " to " << new_message->date;
-      old_message->date = new_message->date;
-
-      if (is_scheduled && message_id.is_scheduled_server()) {
-        CHECK(d->scheduled_messages != nullptr);
-        CHECK(is_message_in_dialog);
-        int32 &date = d->scheduled_messages->scheduled_message_date_[message_id.get_scheduled_server_message_id()];
-        CHECK(date != 0);
-        date = new_message->date;
-      }
-
-      need_send_update = true;
-    } else {
-      LOG(ERROR) << "Receive " << message_id << " in " << dialog_id << " with date changed from " << old_message->date
-                 << " to " << new_message->date << ", message content type is " << old_content_type << '/'
-                 << new_content_type;
-    }
-  }
-  if (old_message->date == old_message->edited_schedule_date) {
-    old_message->edited_schedule_date = 0;
-  }
-  bool is_edited = false;
-  int32 old_shown_edit_date = old_message->hide_edit_date ? 0 : old_message->edit_date;
-  if (old_message->edit_date != new_message->edit_date) {
-    if (new_message->edit_date > 0) {
-      if (new_message->edit_date > old_message->edit_date) {
-        LOG(DEBUG) << "Message edit date has changed from " << old_message->edit_date << " to "
-                   << new_message->edit_date;
-        old_message->edit_date = new_message->edit_date;
-      }
-    } else {
-      LOG(ERROR) << "Receive " << message_id << " in " << dialog_id << " of type " << old_content_type << "/"
-                 << new_content_type << " with wrong edit date " << new_message->edit_date
-                 << ", old edit date = " << old_message->edit_date;
-    }
-  }
-
-  if (old_message->author_signature != new_message->author_signature) {
-    LOG(DEBUG) << "Author signature has changed for " << message_id << " in " << dialog_id << " sent by "
-               << old_message->sender_user_id << "/" << new_message->sender_user_id << " or "
-               << old_message->sender_dialog_id << "/" << new_message->sender_dialog_id << " from "
-               << old_message->author_signature << " to " << new_message->author_signature;
-    old_message->author_signature = std::move(new_message->author_signature);
-    need_send_update = true;
-  }
-  if (old_message->sender_user_id != new_message->sender_user_id) {
-    // there can be race for sent signed posts or changed anonymous flag
-    LOG_IF(ERROR, old_message->sender_user_id != UserId() && new_message->sender_user_id != UserId())
-        << message_id << " in " << dialog_id << " has changed sender from " << old_message->sender_user_id << " to "
-        << new_message->sender_user_id << ", message content type is " << old_content_type << '/' << new_content_type;
-
-    LOG_IF(WARNING, (new_message->sender_user_id.is_valid() || old_message->author_signature.empty()) &&
-                        !old_message->sender_dialog_id.is_valid() && !new_message->sender_dialog_id.is_valid())
-        << "Update message sender from " << old_message->sender_user_id << " to " << new_message->sender_user_id
-        << " in " << dialog_id;
-    LOG(DEBUG) << "Change message sender";
-    old_message->sender_user_id = new_message->sender_user_id;
-    need_send_update = true;
-  }
-  if (old_message->sender_dialog_id != new_message->sender_dialog_id) {
-    // there can be race for changed anonymous flag
-    // yet unsent messages scheduled by the server can lost chosen sender
-    // channel messages received in old layers can receive sender
-    if (old_message->sender_dialog_id != DialogId() && new_message->sender_dialog_id != DialogId() &&
-        (!message_id.is_yet_unsent() || new_message->sender_dialog_id != dialog_id) &&
-        (old_message->sender_dialog_id != dialog_id || !td_->dialog_manager_->is_broadcast_channel(dialog_id))) {
-      LOG(ERROR) << message_id << " in " << dialog_id << " has changed sender from " << old_message->sender_dialog_id
-                 << " to " << new_message->sender_dialog_id << ", message content type is " << old_content_type << '/'
-                 << new_content_type;
-    }
-
-    LOG(DEBUG) << "Change message sender";
-    old_message->sender_dialog_id = new_message->sender_dialog_id;
-    need_send_update = true;
-  }
-  if (old_message->sender_boost_count != new_message->sender_boost_count) {
-    LOG(DEBUG) << "Change sender boost count";
-    old_message->sender_boost_count = new_message->sender_boost_count;
-    need_send_update = true;
-  }
-  if (old_message->paid_message_star_count != new_message->paid_message_star_count) {
-    old_message->paid_message_star_count = new_message->paid_message_star_count;
-    need_send_update = true;
-  }
-  if (old_message->forward_info != new_message->forward_info) {
-    if (!replace_legacy && is_new_available &&
-        MessageForwardInfo::need_change_warning(old_message->forward_info.get(), new_message->forward_info.get(),
-                                                message_id)) {
-      LOG(ERROR) << message_id << " in " << dialog_id << " sent by " << old_message->sender_user_id << "/"
-                 << old_message->sender_dialog_id << " has changed forward info from " << old_message->forward_info
-                 << " to " << new_message->forward_info << ", really forwarded from "
-                 << old_message->real_forward_from_message_id << " in " << old_message->real_forward_from_dialog_id
-                 << ", message content type is " << old_content_type << '/' << new_content_type;
-    } else {
-      LOG(DEBUG) << "Message forward info has changed from " << old_message->forward_info << " to "
-                 << new_message->forward_info;
-    }
-    old_message->forward_info = std::move(new_message->forward_info);
-    need_send_update = true;
-  }
-  if (old_message->had_forward_info != new_message->had_forward_info) {
-    LOG(DEBUG) << "Message had_forward_info has changed from " << old_message->had_forward_info << " to "
-               << new_message->had_forward_info;
-    old_message->had_forward_info = new_message->had_forward_info;
-  }
-  if (old_message->saved_messages_topic_id != new_message->saved_messages_topic_id) {
-    if (!(message_id.is_yet_unsent() && (old_message->saved_messages_topic_id.is_author_hidden() ||
-                                         new_message->saved_messages_topic_id.is_author_hidden()))) {
-      LOG(ERROR) << "Saved Messages topic for " << message_id << " in " << dialog_id << " changed from "
-                 << old_message->saved_messages_topic_id << " to " << new_message->saved_messages_topic_id;
-    }
-    old_message->saved_messages_topic_id = new_message->saved_messages_topic_id;
-    need_send_update = true;
-  }
-  if (old_message->notification_id != new_message->notification_id) {
-    CHECK(!is_scheduled);
-    if (old_message->notification_id.is_valid()) {
-      if (new_message->notification_id.is_valid()) {
-        LOG(ERROR) << "Notification identifier for " << message_id << " in " << dialog_id
-                   << " has tried to change from " << old_message->notification_id << " to "
-                   << new_message->notification_id << ", message content type is " << old_content_type << '/'
-                   << new_content_type;
-      }
-    } else {
-      CHECK(new_message->notification_id.is_valid());
-      auto notification_info = add_dialog_notification_info(d);
-      add_notification_id_to_message_id_correspondence(notification_info, new_message->notification_id, message_id);
-      old_message->notification_id = new_message->notification_id;
-    }
-  }
-  if (new_message->is_mention_notification_disabled) {
-    // is_mention_notification_disabled must not be changed, because the message notification will not
-    // be moved to the other group
-    // old_message->is_mention_notification_disabled = true;
-  }
-
-  if (old_message->ttl_period != new_message->ttl_period) {
-    if (old_message->ttl_period != 0 || !message_id.is_yet_unsent()) {
-      LOG(ERROR) << message_id << " in " << dialog_id << " has changed auto-delete timer from "
-                 << old_message->ttl_period << " to " << new_message->ttl_period;
-    } else {
-      LOG(DEBUG) << "Change message auto-delete timer";
-      old_message->ttl_period = new_message->ttl_period;
-      need_send_update = true;
-    }
-  }
-  if (old_message->ttl != new_message->ttl && old_message->ttl_expires_at == 0) {
-    if (message_id.is_yet_unsent() || replace_legacy) {
-      LOG(INFO) << "Change message self-destruct time from " << old_message->ttl << " to " << new_message->ttl;
-      old_message->ttl = new_message->ttl;
-    } else {
-      LOG(INFO) << "Ignore message self-destruct time change from " << old_message->ttl << " to " << new_message->ttl;
-    }
-  }
-
-  const bool is_replied_message_info_changed = old_message->replied_message_info != new_message->replied_message_info;
-  const bool is_top_thread_message_id_changed =
-      old_message->top_thread_message_id != new_message->top_thread_message_id;
-  const bool is_is_topic_message_changed = old_message->is_topic_message != new_message->is_topic_message;
-  if (is_replied_message_info_changed || is_top_thread_message_id_changed || is_is_topic_message_changed ||
-      old_message->reply_to_story_full_id != new_message->reply_to_story_full_id) {
-    if (!replace_legacy && is_new_available) {
-      if (is_replied_message_info_changed) {
-        LOG(INFO) << "Update replied message of " << MessageFullId{dialog_id, message_id} << " from "
-                  << old_message->replied_message_info << " to " << new_message->replied_message_info;
-        auto is_reply_to_deleted_message = [&](const RepliedMessageInfo &replied_message_info) {
-          auto reply_message_full_id = replied_message_info.get_reply_message_full_id(dialog_id, false);
-          auto *d = get_dialog(reply_message_full_id.get_dialog_id());
-          if (d == nullptr) {
-            return false;
-          }
-          return is_deleted_message(d, reply_message_full_id.get_message_id());
-        };
-        if (RepliedMessageInfo::need_reply_changed_warning(
-                td_, old_message->replied_message_info, new_message->replied_message_info,
-                old_message->top_thread_message_id, message_id.is_yet_unsent() && !is_message_in_dialog,
-                is_reply_to_deleted_message)) {
-          const MessageInputReplyTo *message_input_reply_to = nullptr;
-          if (!message_id.is_any_server()) {
-            message_input_reply_to = get_message_input_reply_to(old_message);
-          }
-          LOG(ERROR) << message_id << " in " << dialog_id << " has changed replied message from "
-                     << old_message->replied_message_info << '/' << message_input_reply_to << " to "
-                     << new_message->replied_message_info << ", message content type is " << old_content_type << '/'
-                     << new_content_type;
-        }
-      }
-      if (is_top_thread_message_id_changed) {
-        if ((new_message->top_thread_message_id != MessageId() && old_message->top_thread_message_id != MessageId()) ||
-            is_message_in_dialog) {
-          LOG(ERROR) << message_id << " in " << dialog_id << " has changed message thread from "
-                     << old_message->top_thread_message_id << " to " << new_message->top_thread_message_id
-                     << ", message content type is " << old_content_type << '/' << new_content_type;
-        } else {
-          LOG(INFO) << "Update message thread of " << MessageFullId{dialog_id, message_id} << " from "
-                    << old_message->top_thread_message_id << " to " << new_message->top_thread_message_id;
-        }
-      }
-      if (is_is_topic_message_changed) {
-        if (!message_id.is_yet_unsent()) {
-          LOG(ERROR) << message_id << " in " << dialog_id << " has changed is_topic_message to "
-                     << new_message->is_topic_message;
-        } else {
-          LOG(INFO) << "Update is_topic_message of " << MessageFullId{dialog_id, message_id} << " from "
-                    << old_message->is_topic_message << " to " << new_message->is_topic_message;
-        }
-      }
-      if (old_message->reply_to_story_full_id != new_message->reply_to_story_full_id) {
-        if (!message_id.is_yet_unsent() || new_message->reply_to_story_full_id.is_valid() || is_message_in_dialog) {
-          LOG(ERROR) << message_id << " in " << dialog_id << " has changed replied story from "
-                     << old_message->reply_to_story_full_id << " to " << new_message->reply_to_story_full_id
-                     << ", message content type is " << old_content_type << '/' << new_content_type;
-        } else {
-          LOG(INFO) << "Update replied story of " << MessageFullId{dialog_id, message_id} << " from "
-                    << old_message->reply_to_story_full_id << " to " << new_message->reply_to_story_full_id;
-        }
-      }
-    }
-
-    if ((is_top_thread_message_id_changed || is_is_topic_message_changed) && is_message_in_dialog &&
-        old_message->is_topic_message && old_message->top_thread_message_id != MessageId()) {
-      td_->forum_topic_manager_->on_topic_message_count_changed(dialog_id, old_message->top_thread_message_id, -1);
-    }
-
-    if (is_message_in_dialog) {
-      unregister_message_reply(d->dialog_id, old_message);
-    }
-    old_message->replied_message_info = std::move(new_message->replied_message_info);
-    old_message->reply_to_story_full_id = new_message->reply_to_story_full_id;
-    old_message->top_thread_message_id = new_message->top_thread_message_id;
-    old_message->is_topic_message = new_message->is_topic_message;
-    old_message->reply_to_random_id = get_message_reply_to_random_id(d, old_message);
-
-    if (is_message_in_dialog) {
-      register_message_reply(d->dialog_id, old_message);
-    }
-    update_message_max_reply_media_timestamp(d, old_message, is_message_in_dialog);
-    if ((is_top_thread_message_id_changed || is_is_topic_message_changed) && is_message_in_dialog &&
-        old_message->is_topic_message && old_message->top_thread_message_id != MessageId()) {
-      td_->forum_topic_manager_->on_topic_message_count_changed(dialog_id, old_message->top_thread_message_id, +1);
-    }
-    need_send_update = true;
-  }
-  if (old_message->via_bot_user_id != new_message->via_bot_user_id) {
-    if ((!message_id.is_yet_unsent() || old_message->via_bot_user_id.is_valid()) && is_new_available &&
-        !replace_legacy) {
-      LOG(ERROR) << message_id << " in " << dialog_id << " has changed inline bot from " << old_message->via_bot_user_id
-                 << " to " << new_message->via_bot_user_id << ", message content type is " << old_content_type << '/'
-                 << new_content_type;
-    }
-    LOG(DEBUG) << "Change message via_bot from " << old_message->via_bot_user_id << " to "
-               << new_message->via_bot_user_id;
-    old_message->via_bot_user_id = new_message->via_bot_user_id;
-    need_send_update = true;
-
-    if (old_message->hide_via_bot && old_message->via_bot_user_id.is_valid()) {
-      // wrongly set hide_via_bot
-      old_message->hide_via_bot = false;
-    }
-  }
-  if (old_message->via_business_bot_user_id != new_message->via_business_bot_user_id) {
-    old_message->via_business_bot_user_id = new_message->via_business_bot_user_id;
-    need_send_update = true;
-  }
-  if (old_message->is_outgoing != new_message->is_outgoing && is_new_available) {
-    if (!replace_legacy && !(message_id.is_scheduled() && dialog_id == td_->dialog_manager_->get_my_dialog_id())) {
-      LOG(ERROR) << message_id << " in " << dialog_id << " has changed is_outgoing from " << old_message->is_outgoing
-                 << " to " << new_message->is_outgoing << ", message content type is " << old_content_type << '/'
-                 << new_content_type;
-      if (new_message->is_outgoing) {
-        old_message->is_outgoing = new_message->is_outgoing;
-        need_send_update = true;
-      }
-    } else {
-      LOG(DEBUG) << "Message is_outgoing has changed from " << old_message->is_outgoing << " to "
-                 << new_message->is_outgoing;
-      old_message->is_outgoing = new_message->is_outgoing;
-      need_send_update = true;
-    }
-  }
-  LOG_IF(ERROR, old_message->is_channel_post != new_message->is_channel_post)
-      << message_id << " in " << dialog_id << " has changed is_channel_post from " << old_message->is_channel_post
-      << " to " << new_message->is_channel_post << ", message content type is " << old_content_type << '/'
-      << new_content_type;
-  if (old_message->contains_mention != new_message->contains_mention) {
-    if (old_message->edit_date == 0 && is_new_available && new_content_type != MessageContentType::PinMessage &&
-        !is_expired_message_content(new_content_type) && !replace_legacy) {
-      LOG(ERROR) << message_id << " in " << dialog_id << " has changed contains_mention from "
-                 << old_message->contains_mention << " to " << new_message->contains_mention
-                 << ", is_outgoing = " << old_message->is_outgoing << ", message content type is " << old_content_type
-                 << '/' << new_content_type;
-    }
-    // contains_mention flag shouldn't be changed, because the message will not be added to unread mention list
-    // and we are unable to show/hide message notification
-    // old_message->contains_mention = new_message->contains_mention;
-    // need_send_update = true;
-  }
-  if (old_message->disable_notification != new_message->disable_notification) {
-    LOG_IF(ERROR, old_message->edit_date == 0 && is_new_available && !replace_legacy)
-        << "Disable_notification has changed from " << old_message->disable_notification << " to "
-        << new_message->disable_notification
-        << ". Old message: " << to_string(get_message_object(dialog_id, old_message, "update_message"))
-        << ". New message: " << to_string(get_message_object(dialog_id, new_message.get(), "update_message"));
-    // disable_notification flag shouldn't be changed, because we are unable to show/hide message notification
-    // old_message->disable_notification = new_message->disable_notification;
-    // need_send_update = true;
-  }
-
-  if (old_message->noforwards != new_message->noforwards) {
-    LOG(DEBUG) << "Message can_be_saved has changed from " << !old_message->noforwards << " to "
-               << !old_message->noforwards;
-    old_message->noforwards = new_message->noforwards;
-    need_send_update = true;
-  }
-  if (old_message->restriction_reasons != new_message->restriction_reasons) {
-    LOG(DEBUG) << "Message restriction_reasons have changed from " << old_message->restriction_reasons << " to "
-               << old_message->restriction_reasons;
-    old_message->restriction_reasons = std::move(new_message->restriction_reasons);
-    need_send_update = true;
-  }
-  if (old_message->legacy_layer != new_message->legacy_layer) {
-    old_message->legacy_layer = new_message->legacy_layer;
-  }
-  if (old_message->media_album_id != new_message->media_album_id &&
-      (old_message->media_album_id == 0 || (new_message->media_album_id == 0 && message_id.is_yet_unsent()) ||
-       td_->auth_manager_->is_bot())) {
-    old_message->media_album_id = new_message->media_album_id;
-    LOG(DEBUG) << "Update message media_album_id";
-    need_send_update = true;
-  }
-  if (old_message->effect_id != new_message->effect_id) {
-    old_message->effect_id = new_message->effect_id;
-    need_send_update = true;
-  }
-  if (old_message->hide_edit_date != new_message->hide_edit_date) {
-    old_message->hide_edit_date = new_message->hide_edit_date;
-  }
-  int32 new_shown_edit_date = old_message->hide_edit_date ? 0 : old_message->edit_date;
-  if (new_shown_edit_date != old_shown_edit_date) {
-    LOG(DEBUG) << "Message edit_date has changed";
-    is_edited = true;
-    need_send_update = true;
-  }
-
-  if (old_message->is_from_scheduled != new_message->is_from_scheduled) {
-    // is_from_scheduled flag shouldn't be changed, because we are unable to show/hide message notification
-    // old_message->is_from_scheduled = new_message->is_from_scheduled;
-  }
-  if (old_message->is_from_offline != new_message->is_from_offline) {
-    old_message->is_from_offline = new_message->is_from_offline;
-  }
-  if (old_message->video_processing_pending != new_message->video_processing_pending) {
-    old_message->video_processing_pending = new_message->video_processing_pending;
-    need_send_update = true;
-  }
-  if (old_message->reactions_are_possible != new_message->reactions_are_possible) {
-    old_message->reactions_are_possible = new_message->reactions_are_possible;
-  }
-
-  if (old_message->edit_date > 0) {
-    // inline keyboard can be edited
-    bool reply_markup_changed =
-        ((old_message->reply_markup == nullptr) != (new_message->reply_markup == nullptr)) ||
-        (old_message->reply_markup != nullptr && *old_message->reply_markup != *new_message->reply_markup);
-    if (reply_markup_changed) {
-      if (d->reply_markup_message_id == message_id && !td_->auth_manager_->is_bot() &&
-          new_message->reply_markup == nullptr) {
-        set_dialog_reply_markup(d, MessageId());
-      }
-      LOG(DEBUG) << "Update message reply keyboard";
-      old_message->reply_markup = std::move(new_message->reply_markup);
-      is_edited = true;
-      need_send_update = true;
-    }
-    old_message->had_reply_markup = false;
-  } else {
-    if (old_message->reply_markup == nullptr) {
-      if (new_message->reply_markup != nullptr) {
-        // MessageGame and MessageInvoice reply markup can be generated server side
-        // some forwards retain their reply markup
-        if (old_content_type != MessageContentType::Game && old_content_type != MessageContentType::Invoice &&
-            need_message_changed_warning(old_message) && !replace_legacy) {
-          LOG(ERROR) << message_id << " in " << dialog_id << " has received reply markup " << *new_message->reply_markup
-                     << ", message content type is " << old_content_type << '/' << new_content_type;
-        } else {
-          LOG(DEBUG) << "Add message reply keyboard";
-        }
-
-        old_message->had_reply_markup = false;
-        old_message->reply_markup = std::move(new_message->reply_markup);
-        need_send_update = true;
-      }
-    } else {
-      if (new_message->reply_markup != nullptr) {
-        if (replace_legacy ||
-            (message_id.is_yet_unsent() && old_message->reply_markup->type == ReplyMarkup::Type::InlineKeyboard &&
-             new_message->reply_markup->type == ReplyMarkup::Type::InlineKeyboard)) {
-          // allow the server to update inline keyboard for sent messages
-          // this is needed to get correct button_id for UrlAuth buttons
-          old_message->had_reply_markup = false;
-          old_message->reply_markup = std::move(new_message->reply_markup);
-          need_send_update = true;
-        } else if (need_message_changed_warning(old_message) && is_new_available) {
-          LOG_IF(WARNING, *old_message->reply_markup != *new_message->reply_markup)
-              << message_id << " in " << dialog_id << " has changed reply_markup from " << *old_message->reply_markup
-              << " to " << *new_message->reply_markup;
-        }
-      } else {
-        // if the message is not accessible anymore, then we don't need a warning
-        if (need_message_changed_warning(old_message) && is_new_available) {
-          LOG(ERROR) << message_id << " in " << dialog_id << " sent by " << old_message->sender_user_id << "/"
-                     << old_message->sender_dialog_id << " has lost reply markup " << *old_message->reply_markup
-                     << ". Old message: " << to_string(get_message_object(dialog_id, old_message, "update_message"))
-                     << ". New message: "
-                     << to_string(get_message_object(dialog_id, new_message.get(), "update_message"));
-        }
-      }
-    }
-  }
-
-  if (old_message->last_access_date < new_message->last_access_date) {
-    old_message->last_access_date = new_message->last_access_date;
-  }
-  if (old_message->history_generation < new_message->history_generation) {
-    old_message->history_generation = new_message->history_generation;
-  }
-  if (new_message->is_update_sent || is_edited) {
-    old_message->is_update_sent = true;
-  }
-
-  if (!is_scheduled && update_message_is_pinned(d, old_message, new_message->is_pinned, "update_message")) {
-    need_send_update = true;
-  }
-  if (!is_scheduled &&
-      update_message_contains_unread_mention(d, old_message, new_message->contains_unread_mention, "update_message")) {
-    need_send_update = true;
-  }
-  // update_message_interaction_info must be called after top_thread_message_id is updated
-  if (update_message_interaction_info(d, old_message, new_message->view_count, new_message->forward_count, true,
-                                      std::move(new_message->reply_info), true, std::move(new_message->reactions),
-                                      "update_message")) {
-    need_send_update = true;
-  }
-  if (update_message_fact_check(d, old_message, std::move(new_message->fact_check), false)) {
-    need_send_update = true;
-  }
-
-  bool is_preview_changed = false;
-  if (old_message->invert_media != new_message->invert_media) {
-    old_message->invert_media = new_message->invert_media;
-    is_preview_changed = true;
-  }
-  if (old_message->disable_web_page_preview != new_message->disable_web_page_preview) {
-    if (old_message->disable_web_page_preview) {
-      is_preview_changed = has_message_content_web_page(new_message->content.get());
-    } else {
-      CHECK(new_message->disable_web_page_preview);
-      is_preview_changed = has_message_content_web_page(old_message->content.get());
-    }
-    old_message->disable_web_page_preview = new_message->disable_web_page_preview;
-  }
-
-  bool is_content_changed = false;
-  if (update_message_content(dialog_id, old_message, std::move(new_message->content),
-                             message_id.is_yet_unsent() && new_message->edit_date == 0, is_message_in_dialog,
-                             is_content_changed) ||
-      is_preview_changed) {
-    send_update_message_content(d, old_message, is_message_in_dialog, "update_message");
-    need_send_update = true;
-  }
-
-  if (was_visible_message_reply_info && !is_visible_message_reply_info(dialog_id, old_message)) {
-    send_update_message_interaction_info(dialog_id, old_message);
-  }
-
-  if (is_edited && !td_->auth_manager_->is_bot()) {
-    send_update_message_edited(dialog_id, old_message);
-  }
-
-  if (!was_visible_message_reply_info && is_visible_message_reply_info(dialog_id, old_message)) {
-    send_update_message_interaction_info(dialog_id, old_message);
-  }
-
-  on_message_changed(d, old_message, need_send_update, "update_message");
-  return need_send_update;
-}
-
-bool MessagesManager::need_message_changed_warning(const Message *old_message) {
-  if (old_message->edit_date > 0) {
-    // message was edited
-    return false;
-  }
-  if (old_message->message_id.is_yet_unsent() &&
-      (old_message->forward_info != nullptr || old_message->had_forward_info ||
-       old_message->real_forward_from_dialog_id.is_valid())) {
-    // original message may be edited
-    return false;
-  }
-  if (old_message->ttl.is_valid()) {
-    // message can expire
-    return false;
-  }
-  if (!old_message->restriction_reasons.empty()) {
-    return false;
-  }
-  return true;
-}
-
-bool MessagesManager::update_message_content(DialogId dialog_id, Message *old_message,
-                                             unique_ptr<MessageContent> new_content, bool need_merge_files,
-                                             bool is_message_in_dialog, bool &is_content_changed) {
-  is_content_changed = false;
-  bool need_update = false;
-
-  unique_ptr<MessageContent> &old_content = old_message->content;
-  MessageContentType old_content_type = old_content->get_type();
-  MessageContentType new_content_type = new_content->get_type();
-
-  vector<FileUploadId> old_file_upload_ids;
-  if (old_message->message_id.is_any_server()) {
-    const auto *edited_message = get_edited_message(dialog_id, old_message->message_id);
-    if (edited_message != nullptr) {
-      old_file_upload_ids = edited_message->file_upload_ids_;
-    }
-  } else {
-    old_file_upload_ids = old_message->file_upload_ids;
-  }
-  if (old_content_type != new_content_type) {
-    if (old_message->ttl.is_valid() && old_message->ttl_expires_at > 0 &&
-        is_expired_message_content(new_content_type) &&
-        get_expired_message_content_type(old_content_type) == new_content_type) {
-      LOG(INFO) << "Do not apply expired message content early";
-    } else {
-      need_update = true;
-      LOG(INFO) << "Message content has changed type from " << old_content_type << " to " << new_content_type;
-
-      old_message->is_content_secret = old_message->ttl.is_secret_message_content(new_content->get_type());
-    }
-
-    if (need_merge_files) {
-      auto new_file_ids = get_message_content_any_file_ids(new_content.get());
-      if (new_file_ids.size() == old_file_upload_ids.size()) {
-        for (size_t i = 0; i < old_file_upload_ids.size(); i++) {
-          td_->file_manager_->try_merge_documents(new_file_ids[i], old_file_upload_ids[i].get_file_id());
-        }
-      }
-    }
-  } else {
-    merge_message_contents(td_, old_content.get(), new_content.get(), need_message_changed_warning(old_message),
-                           dialog_id, need_merge_files, is_content_changed, need_update);
-    compare_message_contents(td_, old_content.get(), new_content.get(), is_content_changed, need_update);
-  }
-  // upload of yet unsent messages is canceled in delete_message or on_upload_message_media_success
-  // upload of being edited messages is canceled in on_message_media_edited
-
-  if (is_content_changed || need_update) {
-    if (is_message_in_dialog) {
-      reregister_message_content(td_, old_content.get(), new_content.get(), {dialog_id, old_message->message_id},
-                                 "update_message_content");
-    }
-    old_content = std::move(new_content);
-    old_message->last_edit_pts = 0;
-    update_message_content_file_id_remotes(old_content.get(), transform(old_file_upload_ids, [](auto &file_upload_id) {
-                                             return file_upload_id.get_file_id();
-                                           }));
-  } else {
-    update_message_content_file_id_remotes(old_content.get(), get_message_content_any_file_ids(new_content.get()));
-  }
-  if (is_content_changed && !need_update) {
-    LOG(INFO) << "Content of " << old_message->message_id << " in " << dialog_id << " has changed";
-  }
-
-  if (need_update) {
-    auto file_ids = get_message_content_file_ids(old_content.get(), td_);
-    if (!file_ids.empty()) {
-      auto file_source_id = get_message_file_source_id(MessageFullId(dialog_id, old_message->message_id));
-      if (file_source_id.is_valid()) {
-        auto search_text = get_message_search_text(old_message);
-        for (auto file_id : file_ids) {
-          auto file_view = td_->file_manager_->get_file_view(file_id);
-          send_closure(td_->download_manager_actor_, &DownloadManager::change_search_text, file_view.get_main_file_id(),
-                       file_source_id, search_text);
-        }
-      }
-    }
-  }
-  return need_update;
-}
-
-MessagesManager::Dialog *MessagesManager::get_dialog_by_message_id(MessageId message_id) {
-  CHECK(message_id.is_valid() && message_id.is_server());
-  auto dialog_id = message_id_to_dialog_id_.get(message_id);
-  if (dialog_id == DialogId()) {
-    if (G()->use_message_database()) {
-      auto r_value =
-          G()->td_db()->get_message_db_sync()->get_message_by_unique_message_id(message_id.get_server_message_id());
-      if (r_value.is_ok()) {
-        Message *m = on_get_message_from_database(r_value.ok(), false, "get_dialog_by_message_id");
-        if (m != nullptr) {
-          dialog_id = r_value.ok().dialog_id;
-          CHECK(m->message_id == message_id);
-          LOG_CHECK(message_id_to_dialog_id_.get(message_id) == dialog_id)
-              << message_id << ' ' << dialog_id << ' ' << message_id_to_dialog_id_.get(message_id) << ' '
-              << m->debug_source;
-          Dialog *d = get_dialog(dialog_id);
-          CHECK(d != nullptr);
-          return d;
-        }
-      }
-    }
-
-    LOG(INFO) << "Can't find the chat by " << message_id;
-    return nullptr;
-  }
-
-  return get_dialog(dialog_id);
-}
-
-MessageId MessagesManager::get_message_id_by_random_id(Dialog *d, int64 random_id, const char *source) {
-  CHECK(d != nullptr);
-  if (random_id == 0) {
-    return MessageId();
-  }
-  auto it = d->random_id_to_message_id.find(random_id);
-  if (it == d->random_id_to_message_id.end()) {
-    if (G()->use_message_database() && d->dialog_id.get_type() == DialogType::SecretChat && random_id != 0) {
-      auto r_value = G()->td_db()->get_message_db_sync()->get_message_by_random_id(d->dialog_id, random_id);
-      if (r_value.is_ok()) {
-        debug_add_message_to_dialog_fail_reason_ = "not called";
-        Message *m = on_get_message_from_database(d, r_value.ok(), false, "get_message_id_by_random_id");
-        if (m != nullptr) {
-          LOG_CHECK(m->random_id == random_id)
-              << random_id << " " << m->random_id << " " << d->random_id_to_message_id[random_id] << " "
-              << d->random_id_to_message_id[m->random_id] << " " << m->message_id << " " << source << " "
-              << get_message(d, m->message_id) << " " << m << " " << debug_add_message_to_dialog_fail_reason_;
-          LOG_CHECK(d->random_id_to_message_id.count(random_id))
-              << source << " " << random_id << " " << m->message_id << " " << m->is_failed_to_send << " "
-              << m->is_outgoing << " " << get_message(d, m->message_id) << " " << m << " "
-              << debug_add_message_to_dialog_fail_reason_;
-          LOG_CHECK(d->random_id_to_message_id[random_id] == m->message_id)
-              << source << " " << random_id << " " << d->random_id_to_message_id[random_id] << " " << m->message_id
-              << " " << m->is_failed_to_send << " " << m->is_outgoing << " " << get_message(d, m->message_id) << " "
-              << m << " " << debug_add_message_to_dialog_fail_reason_;
-          LOG(INFO) << "Found " << MessageFullId{d->dialog_id, m->message_id} << " by random_id " << random_id
-                    << " from " << source;
-          return m->message_id;
-        }
-      }
-    }
-
-    LOG(INFO) << "Found no message by random_id " << random_id << " from " << source;
-    return MessageId();
-  }
-
-  LOG(INFO) << "Found " << MessageFullId{d->dialog_id, it->second} << " by random_id " << random_id << " from "
-            << source;
-  return it->second;
-}
-
-void MessagesManager::try_update_dialog_pos(DialogId dialog_id) {
-  Dialog *d = get_dialog(dialog_id);
-  if (d != nullptr && d->is_update_new_chat_sent) {
-    update_dialog_pos(d, "try_update_dialog_pos");
-  }
-}
-
-void MessagesManager::force_create_dialog(DialogId dialog_id, const char *source, bool expect_no_access,
-                                          bool force_update_dialog_pos) {
-  LOG_CHECK(dialog_id.is_valid()) << source;
-  LOG_CHECK(is_inited_) << dialog_id << ' ' << source << ' ' << expect_no_access << ' ' << force_update_dialog_pos;
-  Dialog *d = get_dialog_force(dialog_id, source);
-  if (d == nullptr) {
-    LOG(INFO) << "Force create " << dialog_id << " from " << source;
-    if (loaded_dialogs_.count(dialog_id) > 0) {
-      LOG(INFO) << "Skip creation of " << dialog_id << ", because it is being loaded now";
-      return;
-    }
-
-    d = add_dialog(dialog_id, source);
-    update_dialog_pos(d, source);
-
-    if (dialog_id.get_type() == DialogType::SecretChat && !d->notification_settings.is_synchronized &&
-        td_->user_manager_->get_secret_chat_state(dialog_id.get_secret_chat_id()) != SecretChatState::Closed) {
-      // secret chat is being created
-      // let's copy notification settings from main chat if available
-      VLOG(notifications) << "Create new secret " << dialog_id << " from " << source;
-      auto secret_chat_id = dialog_id.get_secret_chat_id();
-      {
-        auto user_id = td_->user_manager_->get_secret_chat_user_id(secret_chat_id);
-        Dialog *user_d = get_dialog_force(DialogId(user_id), source);
-        if (user_d != nullptr && user_d->notification_settings.is_synchronized) {
-          VLOG(notifications) << "Copy notification settings from " << user_d->dialog_id << " to " << dialog_id;
-          update_dialog_notification_settings(dialog_id, &d->notification_settings,
-                                              user_d->notification_settings.clone_for_secret_chat());
-        } else {
-          d->notification_settings.is_synchronized = true;
-        }
-      }
-
-      if (G()->use_message_database() && !td_->auth_manager_->is_bot() &&
-          !td_->user_manager_->get_secret_chat_is_outbound(secret_chat_id)) {
-        auto notification_info = add_dialog_notification_info(d);
-        auto notification_group_id =
-            get_dialog_notification_group_id(dialog_id, notification_info->message_notification_group_);
-        if (notification_group_id.is_valid()) {
-          if (notification_info->new_secret_chat_notification_id_.is_valid()) {
-            LOG(ERROR) << "Found previously created " << notification_info->new_secret_chat_notification_id_ << " in "
-                       << d->dialog_id << ", when creating it from " << source;
-          } else {
-            notification_info->new_secret_chat_notification_id_ =
-                get_next_notification_id(notification_info, notification_group_id, MessageId());
-            if (notification_info->new_secret_chat_notification_id_.is_valid()) {
-              auto date = td_->user_manager_->get_secret_chat_date(secret_chat_id);
-              set_dialog_last_notification_checked(dialog_id, notification_info->message_notification_group_, date,
-                                                   notification_info->new_secret_chat_notification_id_,
-                                                   "add_new_secret_chat");
-              VLOG(notifications) << "Create " << notification_info->new_secret_chat_notification_id_ << " with "
-                                  << secret_chat_id;
-              auto ringtone_id = get_dialog_notification_ringtone_id(dialog_id, d);
-              send_closure_later(G()->notification_manager(), &NotificationManager::add_notification,
-                                 notification_group_id, NotificationGroupType::SecretChat, dialog_id, date, dialog_id,
-                                 false, ringtone_id, 0, notification_info->new_secret_chat_notification_id_,
-                                 create_new_secret_chat_notification(), "add_new_secret_chat_notification");
-            }
-          }
-        }
-      }
-    }
-    if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-      if (!td_->dialog_manager_->have_dialog_info(dialog_id)) {
-        if (expect_no_access && dialog_id.get_type() == DialogType::Channel &&
-            td_->chat_manager_->have_min_channel(dialog_id.get_channel_id())) {
-          LOG(INFO) << "Created " << dialog_id << " for min-channel from " << source;
-        } else {
-          LOG(ERROR) << "Forced to create unknown " << dialog_id << " from " << source;
-        }
-      } else if (!expect_no_access) {
-        LOG(ERROR) << "Have no access to " << dialog_id << " received from " << source << ", but forced to create it";
-      }
-    }
-  } else if (force_update_dialog_pos) {
-    update_dialog_pos(d, "force update chat position");
-  }
-}
-
-MessagesManager::Dialog *MessagesManager::add_dialog_for_new_message(DialogId dialog_id, bool have_last_message,
-                                                                     bool *need_update_dialog_pos, const char *source) {
-  if (have_last_message) {
-    CHECK(!being_added_by_new_message_dialog_id_.is_valid());
-    being_added_by_new_message_dialog_id_ = dialog_id;
-  }
-  auto *d = add_dialog(dialog_id, source);
-  CHECK(d != nullptr);
-  being_added_by_new_message_dialog_id_ = DialogId();
-  *need_update_dialog_pos = true;
-  return d;
-}
-
-MessagesManager::Dialog *MessagesManager::add_dialog(DialogId dialog_id, const char *source) {
-  LOG(DEBUG) << "Creating " << dialog_id << " from " << source;
-  CHECK(!have_dialog(dialog_id));
-  LOG_CHECK(dialog_id.is_valid()) << source;
-
-  if (G()->use_message_database() && failed_to_load_dialogs_.count(dialog_id) == 0) {
-    auto r_value = G()->td_db()->get_dialog_db_sync()->get_dialog(dialog_id);
-    if (r_value.is_ok()) {
-      LOG(INFO) << "Synchronously loaded " << dialog_id << " from database from " << source;
-      return add_new_dialog(parse_dialog(dialog_id, r_value.ok(), source), true, source);
-    }
-  }
-
-  auto dialog = make_unique<Dialog>();
-  dialog->dialog_id = dialog_id;
-  invalidate_message_indexes(dialog.get());
-
-  return add_new_dialog(std::move(dialog), false, source);
-}
-
-MessagesManager::Dialog *MessagesManager::add_new_dialog(unique_ptr<Dialog> &&dialog, bool is_loaded_from_database,
-                                                         const char *source) {
-  Dialog *d = dialog.get();
-  auto dialog_id = d->dialog_id;
-  LOG_CHECK(is_inited_) << dialog_id << ' ' << is_loaded_from_database << ' ' << source;
-  LOG_CHECK(!have_dialog(dialog_id)) << dialog_id << ' ' << is_loaded_from_database << ' ' << source;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (dialog_id == td_->dialog_manager_->get_my_dialog_id() && d->last_read_inbox_message_id == MessageId::max() &&
-          d->last_read_outbox_message_id == MessageId::max()) {
-        d->last_read_inbox_message_id = d->last_new_message_id;
-        d->last_read_outbox_message_id = d->last_new_message_id;
-      }
-      d->has_bots = !td_->auth_manager_->is_bot() &&
-                    dialog_id.get_user_id() != UserManager::get_replies_bot_user_id() &&
-                    dialog_id.get_user_id() != UserManager::get_verification_codes_bot_user_id() &&
-                    td_->user_manager_->is_user_bot(dialog_id.get_user_id());
-      d->is_has_bots_inited = true;
-      d->is_available_reactions_inited = true;
-      d->is_view_as_messages_inited = true;
-      if (!d->is_saved_messages_view_as_messages_inited && dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-        d->is_saved_messages_view_as_messages_inited = true;
-        d->view_as_messages = true;
-      }
-      break;
-    case DialogType::Chat:
-      d->is_is_blocked_inited = true;
-      d->is_is_blocked_for_stories_inited = true;
-      d->is_background_inited = true;
-      d->is_view_as_messages_inited = true;
-      break;
-    case DialogType::Channel: {
-      if (td_->chat_manager_->is_broadcast_channel(dialog_id.get_channel_id())) {
-        d->last_read_outbox_message_id = MessageId::max();
-        d->is_last_read_outbox_message_id_inited = true;
-      }
-
-      auto pts = load_channel_pts(dialog_id);
-      if (pts > 0) {
-        d->pts = pts;
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      if (d->last_new_message_id.get() <= MessageId::min().get()) {
-        LOG(INFO) << "Set " << dialog_id << " last new message in add_new_dialog from " << source;
-        d->last_new_message_id = MessageId::min().get_next_message_id(MessageType::Local);
-      }
-
-      if (!d->notification_settings.is_secret_chat_show_preview_fixed) {
-        d->notification_settings.use_default_show_preview = true;
-        d->notification_settings.show_preview = false;
-        d->notification_settings.is_secret_chat_show_preview_fixed = true;
-        on_dialog_updated(dialog_id, "fix secret chat show preview");
-      }
-
-      d->have_full_history = true;
-      d->have_full_history_source = 4;
-      d->need_restore_reply_markup = false;
-      d->is_last_read_inbox_message_id_inited = true;
-      d->is_last_read_outbox_message_id_inited = true;
-      d->is_last_pinned_message_id_inited = true;
-      d->is_background_inited = true;
-      d->is_theme_name_inited = true;
-      d->is_is_blocked_inited = true;
-      d->is_is_blocked_for_stories_inited = true;
-      d->is_view_as_messages_inited = true;
-      if (!d->is_folder_id_inited && !td_->auth_manager_->is_bot()) {
-        do_set_dialog_folder_id(d,
-                                td_->user_manager_->get_secret_chat_initial_folder_id(dialog_id.get_secret_chat_id()));
-      }
-      d->message_ttl = MessageTtl(td_->user_manager_->get_secret_chat_ttl(dialog_id.get_secret_chat_id()));
-      d->is_message_ttl_inited = true;
-      d->has_bots =
-          td_->user_manager_->is_user_bot(td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id()));
-      d->is_has_bots_inited = true;
-      d->is_available_reactions_inited = true;
-      d->has_loaded_scheduled_messages_from_database = true;
-
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  if (!is_loaded_from_database) {
-    on_dialog_updated(dialog_id, "add_new_dialog");
-  }
-  if (td_->auth_manager_->is_bot()) {
-    d->notification_settings.is_synchronized = true;
-  }
-  if (is_channel_difference_finished_.erase(dialog_id)) {
-    d->is_channel_difference_finished = true;
-  }
-
-  auto draft_message = std::move(d->draft_message);
-  d->draft_message = nullptr;
-  unique_ptr<Message> last_database_message;
-  if (!d->messages.empty()) {
-    d->messages.foreach([&](const MessageId &message_id, unique_ptr<Message> &message) {
-      CHECK(last_database_message == nullptr);
-      last_database_message = std::move(message);
-    });
-    d->messages = {};
-  }
-  auto last_database_message_id = d->last_database_message_id;
-  d->last_database_message_id = MessageId();
-  if (td_->auth_manager_->is_bot()) {
-    draft_message = nullptr;
-    last_database_message = nullptr;
-    d->first_database_message_id = MessageId();
-    last_database_message_id = MessageId();
-
-    d->reply_markup_message_id = MessageId();
-    d->last_assigned_message_id = MessageId(ServerMessageId(1));
-    d->last_new_message_id = MessageId();
-    d->last_clear_history_date = 0;
-    d->last_clear_history_message_id = MessageId();
-    d->order = DEFAULT_ORDER;
-  }
-  int64 order = d->order;
-  d->order = DEFAULT_ORDER;
-  int32 last_clear_history_date = d->last_clear_history_date;
-  MessageId last_clear_history_message_id = d->last_clear_history_message_id;
-  d->last_clear_history_date = 0;
-  d->last_clear_history_message_id = MessageId();
-  DialogId default_join_group_call_as_dialog_id = d->default_join_group_call_as_dialog_id;
-  if (default_join_group_call_as_dialog_id != dialog_id &&
-      default_join_group_call_as_dialog_id.get_type() != DialogType::User &&
-      !have_dialog(default_join_group_call_as_dialog_id)) {
-    d->default_join_group_call_as_dialog_id = DialogId();
-  }
-  DialogId default_send_message_as_dialog_id = d->default_send_message_as_dialog_id;
-  bool need_drop_default_send_message_as_dialog_id = d->need_drop_default_send_message_as_dialog_id;
-  if (default_send_message_as_dialog_id != dialog_id &&
-      default_send_message_as_dialog_id.get_type() != DialogType::User &&
-      !have_dialog(default_send_message_as_dialog_id)) {
-    d->need_drop_default_send_message_as_dialog_id = false;
-    d->default_send_message_as_dialog_id = DialogId();
-  }
-
-  if (d->notification_info != nullptr) {
-    if (d->notification_info->message_notification_group_.is_valid()) {
-      notification_group_id_to_dialog_id_.emplace(d->notification_info->message_notification_group_.get_group_id(),
-                                                  dialog_id);
-    }
-    if (d->notification_info->mention_notification_group_.is_valid()) {
-      notification_group_id_to_dialog_id_.emplace(d->notification_info->mention_notification_group_.get_group_id(),
-                                                  dialog_id);
-    }
-  }
-  if (pending_dialog_group_call_updates_.count(dialog_id) > 0) {
-    auto it = pending_dialog_group_call_updates_.find(dialog_id);
-    bool has_active_group_call = it->second.first;
-    bool is_group_call_empty = it->second.second;
-    pending_dialog_group_call_updates_.erase(it);
-    if (d->has_active_group_call != has_active_group_call || d->is_group_call_empty != is_group_call_empty) {
-      if (!has_active_group_call) {
-        d->active_group_call_id = InputGroupCallId();
-      }
-      d->has_active_group_call = has_active_group_call;
-      d->is_group_call_empty = is_group_call_empty;
-      on_dialog_updated(dialog_id, "pending update_dialog_group_call");
-    }
-  }
-  td_->dialog_participant_manager_->fix_pending_join_requests(dialog_id, d->pending_join_request_count,
-                                                              d->pending_join_request_user_ids);
-
-  if (!is_loaded_from_database) {
-    CHECK(order == DEFAULT_ORDER);
-    CHECK(draft_message == nullptr);
-    CHECK(last_database_message == nullptr);
-  }
-
-  CHECK(!have_dialog(dialog_id));
-  dialogs_.set(dialog_id, std::move(dialog));
-
-  CHECK(!being_added_new_dialog_id_.is_valid());
-  being_added_new_dialog_id_ = dialog_id;
-
-  loaded_dialogs_.erase(dialog_id);
-  failed_to_load_dialogs_.erase(dialog_id);
-
-  fix_dialog_action_bar(d, d->action_bar.get());
-  fix_dialog_business_bot_manage_bar(dialog_id, d->business_bot_manage_bar.get());
-
-  send_update_new_chat(d, source);
-
-  being_added_new_dialog_id_ = DialogId();
-
-  CHECK(d->messages.empty());
-
-  fix_new_dialog(d, std::move(draft_message), std::move(last_database_message), last_database_message_id, order,
-                 last_clear_history_date, last_clear_history_message_id, default_join_group_call_as_dialog_id,
-                 default_send_message_as_dialog_id, need_drop_default_send_message_as_dialog_id,
-                 is_loaded_from_database, source);
-
-  return d;
-}
-
-void MessagesManager::fix_new_dialog(Dialog *d, unique_ptr<DraftMessage> &&draft_message,
-                                     unique_ptr<Message> &&last_database_message, MessageId last_database_message_id,
-                                     int64 order, int32 last_clear_history_date,
-                                     MessageId last_clear_history_message_id,
-                                     DialogId default_join_group_call_as_dialog_id,
-                                     DialogId default_send_message_as_dialog_id,
-                                     bool need_drop_default_send_message_as_dialog_id, bool is_loaded_from_database,
-                                     const char *source) {
-  CHECK(d != nullptr);
-  auto dialog_id = d->dialog_id;
-  auto dialog_type = dialog_id.get_type();
-
-  if (!td_->auth_manager_->is_bot() && dialog_type == DialogType::SecretChat) {
-    auto user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-    if (user_id.is_valid()) {
-      force_create_dialog(DialogId(user_id), "add chat with user to load/store action_bar and is_blocked");
-
-      Dialog *user_d = get_dialog_force(DialogId(user_id), "fix_new_dialog 19");
-      if (user_d != nullptr &&
-          (d->is_blocked != user_d->is_blocked || d->is_blocked_for_stories != user_d->is_blocked_for_stories)) {
-        set_dialog_is_blocked(d, user_d->is_blocked, user_d->is_blocked_for_stories);
-      }
-    }
-  }
-
-  if (d->is_empty && !d->have_full_history) {
-    LOG(ERROR) << "Drop invalid flag is_empty";
-    d->is_empty = false;
-  }
-
-  if (being_added_dialog_id_ != dialog_id && !td_->auth_manager_->is_bot() && !is_dialog_inited(d) &&
-      td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    // asynchronously get dialog from the server
-    send_get_dialog_query(dialog_id, Auto(), 0, "fix_new_dialog 20");
-  }
-
-  if (being_added_dialog_id_ != dialog_id && !td_->auth_manager_->is_bot()) {
-    const char *reload_source = nullptr;
-    if (!d->is_is_blocked_for_stories_inited) {
-      reload_source = "fix_new_dialog init is_blocked_for_stories";
-    } else if (!d->is_has_bots_inited) {
-      reload_source = "fix_new_dialog init has_bots";
-    } else if (!d->is_background_inited) {
-      reload_source = "fix_new_dialog init background";
-    } else if (!d->is_theme_name_inited) {
-      reload_source = "fix_new_dialog init theme_name";
-    } else if (!d->is_available_reactions_inited) {
-      reload_source = "fix_new_dialog init available_reactions";
-    } else if (!d->is_folder_id_inited && order != DEFAULT_ORDER) {
-      reload_source = "fix_new_dialog init folder_id";
-    } else if (!d->is_message_ttl_inited &&
-               td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Write)) {
-      reload_source = "fix_new_dialog init message_auto_delete_time";
-    } else if (!d->is_view_as_messages_inited && td_->dialog_manager_->is_forum_channel(dialog_id)) {
-      reload_source = "fix_new_dialog init view_as_messages";
-    } else if (!d->is_last_pinned_message_id_inited) {
-      get_dialog_pinned_message(dialog_id, Auto());
-    }
-    if (reload_source != nullptr) {
-      // asynchronously get dialog info from the server
-      td_->dialog_manager_->reload_dialog_info_full(dialog_id, reload_source);
-    }
-  }
-  if ((!d->know_action_bar || d->need_repair_action_bar) && !td_->auth_manager_->is_bot() &&
-      dialog_id != td_->dialog_manager_->get_my_dialog_id() &&
-      td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    // asynchronously get action bar from the server
-    reget_dialog_action_bar(dialog_id, "fix_new_dialog 21", false);
-  }
-  if (d->has_active_group_call && !d->active_group_call_id.is_valid() && !td_->auth_manager_->is_bot()) {
-    repair_dialog_active_group_call_id(dialog_id);
-  }
-  set_dialog_is_forum(d, td_->dialog_manager_->is_forum_channel(dialog_id));
-
-  if (d->notification_settings.is_synchronized && !d->notification_settings.is_use_default_fixed &&
-      td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read) && !td_->auth_manager_->is_bot()) {
-    LOG(INFO) << "Reget notification settings of " << dialog_id;
-    if (dialog_type == DialogType::SecretChat) {
-      d->notification_settings.is_use_default_fixed = true;
-      on_dialog_updated(dialog_id, "reget notification settings");
-    } else {
-      td_->notification_settings_manager_->send_get_dialog_notification_settings_query(dialog_id, MessageId(),
-                                                                                       Promise<Unit>());
-    }
-  }
-  if (td_->auth_manager_->is_bot() || d->notification_settings.use_default_mute_until ||
-      d->notification_settings.mute_until <= G()->unix_time()) {
-    d->notification_settings.mute_until = 0;
-  } else {
-    schedule_dialog_unmute(dialog_id, false, d->notification_settings.mute_until, G()->unix_time());
-  }
-  if (d->notification_info != nullptr && d->notification_info->pinned_message_notification_message_id_.is_valid()) {
-    auto pinned_message_id = d->notification_info->pinned_message_notification_message_id_;
-    if (!d->notification_info->mention_notification_group_.is_valid()) {
-      LOG(ERROR) << "Have pinned message notification in " << pinned_message_id << " in " << dialog_id
-                 << ", but there is no mention notification group";
-      d->notification_info->pinned_message_notification_message_id_ = MessageId();
-      on_dialog_updated(dialog_id, "fix pinned message notification");
-    } else if (is_dialog_pinned_message_notifications_disabled(d) ||
-               pinned_message_id <= d->last_read_inbox_message_id ||
-               d->notification_info->mention_notification_group_.is_removed_object_id(pinned_message_id)) {
-      VLOG(notifications) << "Remove disabled pinned message notification in " << pinned_message_id << " in "
-                          << dialog_id;
-      send_closure_later(G()->notification_manager(), &NotificationManager::remove_temporary_notification_by_object_id,
-                         d->notification_info->mention_notification_group_.get_group_id(), pinned_message_id, true,
-                         "fix pinned message notification");
-      d->notification_info->pinned_message_notification_message_id_ = MessageId();
-      on_dialog_updated(dialog_id, "fix pinned message notification 2");
-    }
-  }
-
-  {
-    auto it = pending_add_dialog_dependent_dialogs_.find(dialog_id);
-    if (it != pending_add_dialog_dependent_dialogs_.end()) {
-      auto pending_dialog_ids = std::move(it->second);
-      pending_add_dialog_dependent_dialogs_.erase(it);
-
-      for (auto &pending_dialog_id : pending_dialog_ids) {
-        auto &add_dialog_data = pending_add_dialog_data_[pending_dialog_id];
-        CHECK(add_dialog_data.dependent_dialog_count_ > 0);
-        add_dialog_data.dependent_dialog_count_--;
-        if (add_dialog_data.dependent_dialog_count_ == 0) {
-          LOG(INFO) << "Add postponed last database message in " << pending_dialog_id;
-          add_pending_dialog_data(get_dialog(pending_dialog_id), std::move(add_dialog_data.last_message_),
-                                  std::move(add_dialog_data.draft_message_));
-          pending_add_dialog_data_.erase(pending_dialog_id);
-        }
-      }
-    }
-  }
-
-  {
-    auto it = pending_add_default_join_group_call_as_dialog_id_.find(dialog_id);
-    if (it != pending_add_default_join_group_call_as_dialog_id_.end()) {
-      auto pending_dialog_ids = std::move(it->second);
-      pending_add_default_join_group_call_as_dialog_id_.erase(it);
-
-      for (auto &pending_dialog_id : pending_dialog_ids) {
-        on_update_dialog_default_join_group_call_as_dialog_id(pending_dialog_id, dialog_id, false);
-      }
-    }
-  }
-
-  {
-    auto it = pending_add_default_send_message_as_dialog_id_.find(dialog_id);
-    if (it != pending_add_default_send_message_as_dialog_id_.end()) {
-      auto pending_dialog_ids = std::move(it->second);
-      pending_add_default_send_message_as_dialog_id_.erase(it);
-
-      for (auto &pending_dialog_id : pending_dialog_ids) {
-        Dialog *pending_d = get_dialog(pending_dialog_id.first);
-        CHECK(pending_d != nullptr);
-        if (!pending_d->default_send_message_as_dialog_id.is_valid()) {
-          LOG(INFO) << "Set postponed message sender in " << pending_dialog_id << " to " << dialog_id;
-          pending_d->need_drop_default_send_message_as_dialog_id = pending_dialog_id.second;
-          pending_d->default_send_message_as_dialog_id = dialog_id;
-          send_update_chat_message_sender(pending_d);
-        }
-      }
-    }
-  }
-
-  if (!td_->auth_manager_->is_bot() && dialog_id != being_added_dialog_id_) {
-    set_dialog_last_clear_history_date(d, last_clear_history_date, last_clear_history_message_id, "fix_new_dialog 8",
-                                       is_loaded_from_database);
-
-    if (td_->dialog_manager_->is_dialog_removed_from_dialog_list(dialog_id)) {
-      order = DEFAULT_ORDER;
-    }
-    set_dialog_order(d, order, false, is_loaded_from_database, "fix_new_dialog 9");
-  }
-
-  if (dialog_type != DialogType::SecretChat && d->last_new_message_id.is_valid() &&
-      !d->last_new_message_id.is_server()) {
-    // fix wrong last_new_message_id
-    d->last_new_message_id = d->last_new_message_id.get_prev_server_message_id();
-    on_dialog_updated(dialog_id, "fix_new_dialog 10");
-  }
-
-  bool need_get_history = true;
-
-  // add last database message to dialog
-  MessageId last_message_id;
-  if (last_database_message != nullptr) {
-    need_get_history = false;
-    last_message_id = last_database_message->message_id;
-  } else if (last_database_message_id.is_valid()) {
-    last_message_id = last_database_message_id;
-  }
-
-  if (!d->last_new_message_id.is_valid() && d->last_new_message_id != MessageId()) {
-    LOG(ERROR) << "Drop invalid last_new_message_id " << d->last_new_message_id << " in " << dialog_id;
-    d->last_new_message_id = MessageId();
-  }
-  if (last_message_id.is_valid()) {
-    if ((last_message_id.is_server() || dialog_type == DialogType::SecretChat) && !last_message_id.is_yet_unsent() &&
-        !d->last_new_message_id.is_valid()) {
-      LOG(ERROR) << "Bugfixing wrong last_new_message_id to " << last_message_id << " in " << dialog_id;
-      // must be called before set_dialog_first_database_message_id and set_dialog_last_database_message_id
-      set_dialog_last_new_message_id(d, last_message_id, "fix_new_dialog 1");
-    }
-    if (!d->first_database_message_id.is_valid() || d->first_database_message_id > last_message_id) {
-      LOG(ERROR) << "Bugfixing wrong first_database_message_id from " << d->first_database_message_id << " to "
-                 << last_message_id << " in " << dialog_id;
-      set_dialog_first_database_message_id(d, last_message_id, "fix_new_dialog 2");
-    }
-    set_dialog_last_database_message_id(d, last_message_id, "fix_new_dialog 3", is_loaded_from_database);
-  } else if (d->first_database_message_id.is_valid()) {
-    // ensure that first_database_message_id <= last_database_message_id
-    if (d->first_database_message_id <= d->last_new_message_id) {
-      set_dialog_last_database_message_id(d, d->last_new_message_id, "fix_new_dialog 4");
-    } else {
-      // can't fix last_database_message_id, drop first_database_message_id; it shouldn't happen anyway
-      set_dialog_first_database_message_id(d, MessageId(), "fix_new_dialog 5");
-    }
-  }
-  d->debug_first_database_message_id = d->first_database_message_id;
-  d->debug_last_database_message_id = d->last_database_message_id;
-  d->debug_last_new_message_id = d->last_new_message_id;
-
-  if (last_database_message != nullptr || draft_message != nullptr) {
-    Dependencies dependencies;
-    if (last_database_message != nullptr) {
-      add_message_dependencies(dependencies, last_database_message.get());
-    }
-    if (draft_message != nullptr) {
-      draft_message->add_dependencies(dependencies);
-    }
-
-    int32 dependent_dialog_count = 0;
-    for (const auto &other_dialog_id : dependencies.get_dialog_ids()) {
-      if (other_dialog_id.is_valid() && !have_dialog(other_dialog_id)) {
-        LOG(INFO) << "Postpone adding of data in " << dialog_id << " because of cyclic dependency with "
-                  << other_dialog_id;
-        pending_add_dialog_dependent_dialogs_[other_dialog_id].push_back(dialog_id);
-        dependent_dialog_count++;
-      }
-    };
-
-    auto pending_order = DEFAULT_ORDER;
-    if (last_database_message != nullptr) {
-      auto last_message_order = get_dialog_order(last_message_id, last_database_message->date);
-      if (last_message_order > pending_order) {
-        pending_order = last_message_order;
-      }
-    }
-    if (draft_message != nullptr && !need_hide_dialog_draft_message(d)) {
-      int64 draft_order = get_dialog_order(MessageId(), draft_message->get_date());
-      if (draft_order > pending_order) {
-        pending_order = draft_order;
-      }
-    }
-    if (dependent_dialog_count == 0) {
-      if (!add_pending_dialog_data(d, std::move(last_database_message), std::move(draft_message))) {
-        // failed to add last message; keep the current position and get history from the database
-        d->pending_order = pending_order;
-      }
-    } else {
-      // can't add data immediately, because need to notify first about adding of dependent dialogs
-      d->pending_order = pending_order;
-      pending_add_dialog_data_[dialog_id] = {dependent_dialog_count, std::move(last_database_message),
-                                             std::move(draft_message)};
-    }
-  } else if (last_database_message_id.is_valid()) {
-    auto date = DialogDate(order, dialog_id).get_date();
-    if (date < MIN_PINNED_DIALOG_DATE) {
-      d->pending_order = get_dialog_order(last_message_id, date);
-    }
-  }
-
-  if (default_join_group_call_as_dialog_id != d->default_join_group_call_as_dialog_id) {
-    CHECK(default_join_group_call_as_dialog_id.is_valid());
-    CHECK(default_join_group_call_as_dialog_id.get_type() != DialogType::User);
-    CHECK(!d->default_join_group_call_as_dialog_id.is_valid());
-    if (!have_dialog(default_join_group_call_as_dialog_id)) {
-      LOG(INFO) << "Postpone adding of default join voice chat as " << default_join_group_call_as_dialog_id << " in "
-                << dialog_id;
-      pending_add_default_join_group_call_as_dialog_id_[default_join_group_call_as_dialog_id].push_back(dialog_id);
-    } else {
-      on_update_dialog_default_join_group_call_as_dialog_id(dialog_id, default_join_group_call_as_dialog_id, false);
-    }
-  }
-
-  if (default_send_message_as_dialog_id != d->default_send_message_as_dialog_id) {
-    CHECK(default_send_message_as_dialog_id.is_valid());
-    CHECK(default_send_message_as_dialog_id.get_type() != DialogType::User);
-    CHECK(!d->default_send_message_as_dialog_id.is_valid());
-    if (!have_dialog(default_send_message_as_dialog_id)) {
-      LOG(INFO) << "Postpone setting of message sender " << default_send_message_as_dialog_id << " in " << dialog_id;
-      pending_add_default_send_message_as_dialog_id_[default_send_message_as_dialog_id].emplace_back(
-          dialog_id, need_drop_default_send_message_as_dialog_id);
-    } else {
-      LOG(INFO) << "Set message sender in " << dialog_id << " to " << default_send_message_as_dialog_id;
-      d->need_drop_default_send_message_as_dialog_id = need_drop_default_send_message_as_dialog_id;
-      d->default_send_message_as_dialog_id = default_send_message_as_dialog_id;
-      send_update_chat_message_sender(d);
-    }
-  }
-
-  switch (dialog_type) {
-    case DialogType::User:
-      break;
-    case DialogType::Chat:
-      if (d->last_read_inbox_message_id < d->last_read_outbox_message_id) {
-        LOG(INFO) << "Last read outbox message is " << d->last_read_outbox_message_id << " in " << dialog_id
-                  << ", but last read inbox message is " << d->last_read_inbox_message_id;
-        // can't fix last_read_inbox_message_id by last_read_outbox_message_id because last_read_outbox_message_id is
-        // just a message identifier not less than an identifier of last read outgoing message and less than
-        // an identifier of first unread outgoing message, so it may not point to the outgoing message
-        // read_history_inbox(d, d->last_read_outbox_message_id, d->server_unread_count, "fix_new_dialog 6");
-      }
-      break;
-    case DialogType::Channel:
-      break;
-    case DialogType::SecretChat:
-      break;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-
-  if (d->delete_last_message_date != 0) {
-    if (d->last_message_id.is_valid()) {
-      LOG(ERROR) << "Last " << d->deleted_last_message_id << " in " << dialog_id << " was deleted at "
-                 << d->delete_last_message_date << ", but have last " << d->last_message_id;
-      d->delete_last_message_date = 0;
-      d->deleted_last_message_id = MessageId();
-      d->is_last_message_deleted_locally = false;
-      on_dialog_updated(dialog_id, "fix_new_dialog delete_last_message_date");
-    } else {
-      need_get_history = true;
-    }
-  }
-
-  if (!G()->use_message_database()) {
-    d->has_loaded_scheduled_messages_from_database = true;
-  }
-
-  if (dialog_id != being_added_dialog_id_) {
-    update_dialog_pos(d, "fix_new_dialog 7", true, is_loaded_from_database);
-  }
-  if (is_loaded_from_database && d->order != order && order < MAX_ORDINARY_DIALOG_ORDER &&
-      !td_->dialog_manager_->is_dialog_info_received_from_server(dialog_id) && !d->had_last_yet_unsent_message &&
-      !td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << dialog_id << " has order " << d->order << " instead of saved to database order " << order;
-  }
-
-  LOG(INFO) << "Loaded " << dialog_id << " with last new " << d->last_new_message_id << ", first database "
-            << d->first_database_message_id << ", last database " << d->last_database_message_id << ", last "
-            << d->last_message_id << " with order " << d->order;
-  if (d->notification_info != nullptr) {
-    VLOG(notifications) << "Have " << dialog_id << " with message " << d->notification_info->message_notification_group_
-                        << " and new secret chat " << d->notification_info->new_secret_chat_notification_id_;
-    VLOG(notifications) << "Have " << dialog_id << " with mention " << d->notification_info->mention_notification_group_
-                        << " and pinned " << d->notification_info->pinned_message_notification_message_id_;
-    VLOG(notifications) << "In " << dialog_id << " have last_read_inbox_message_id = " << d->last_read_inbox_message_id
-                        << ", last_new_message_id = " << d->last_new_message_id
-                        << ", max_push_notification_message_id = "
-                        << d->notification_info->max_push_notification_message_id_;
-  }
-
-  LOG_CHECK(d->messages.calc_size() <= 1)
-      << d->messages.calc_size() << ' ' << last_message_id << ' ' << d->last_message_id << ' '
-      << d->last_database_message_id << ' ' << d->debug_set_dialog_last_database_message_id << ' '
-      << is_loaded_from_database << ' ' << source << ' ' << being_added_dialog_id_ << ' ' << being_added_new_dialog_id_
-      << ' ' << dialog_id << ' ' << d->is_channel_difference_finished << ' '
-      << debug_last_get_channel_difference_dialog_id_ << ' ' << debug_last_get_channel_difference_source_ << ' '
-      << G()->use_message_database();
-
-  // must be after update_dialog_pos, because uses d->order
-  // must be after checks that dialog has at most one message, because read_history_inbox can load
-  // pinned message to remove notification about it
-  if (d->pending_read_channel_inbox_pts != 0 && !td_->auth_manager_->is_bot() &&
-      td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read) && need_unread_counter(d->order)) {
-    if (d->pts == d->pending_read_channel_inbox_pts) {
-      d->pending_read_channel_inbox_pts = 0;
-      read_history_inbox(d, d->pending_read_channel_inbox_max_message_id,
-                         d->pending_read_channel_inbox_server_unread_count, "fix_new_dialog 12");
-      on_dialog_updated(dialog_id, "fix_new_dialog 13");
-    } else if (d->pts > d->pending_read_channel_inbox_pts) {
-      d->need_repair_channel_server_unread_count = true;
-      d->pending_read_channel_inbox_pts = 0;
-      on_dialog_updated(dialog_id, "fix_new_dialog 14");
-    } else {
-      schedule_get_channel_difference(dialog_id, d->pending_read_channel_inbox_pts, MessageId(), 0.001, source);
-    }
-  } else {
-    d->pending_read_channel_inbox_pts = 0;
-  }
-  if (need_get_history && !td_->auth_manager_->is_bot() && dialog_id != being_added_dialog_id_ &&
-      dialog_id != being_added_by_new_message_dialog_id_ && (d->order != DEFAULT_ORDER || is_dialog_sponsored(d))) {
-    load_last_dialog_message(d, "fix_new_dialog 15");
-  }
-  if (d->need_repair_server_unread_count && need_unread_counter(d->order)) {
-    CHECK(dialog_type != DialogType::SecretChat);
-    repair_server_unread_count(dialog_id, d->server_unread_count, "fix_new_dialog 16");
-  }
-  if (dialog_type == DialogType::Channel && need_unread_counter(d->order) && d->server_unread_count > 0 &&
-      !td_->auth_manager_->is_bot() && td_->option_manager_->get_option_integer("since_last_open") >= 2 * 86400) {
-    d->need_repair_channel_server_unread_count = true;
-  }
-  if (d->need_repair_channel_server_unread_count) {
-    repair_channel_server_unread_count(d);
-  }
-  if (d->need_repair_unread_reaction_count) {
-    repair_dialog_unread_reaction_count(d, Promise<Unit>(), "fix_new_dialog 17");
-  }
-  if (d->need_repair_unread_mention_count) {
-    repair_dialog_unread_mention_count(d, "fix_new_dialog 18");
-  }
-}
-
-bool MessagesManager::add_pending_dialog_data(Dialog *d, unique_ptr<Message> &&last_database_message,
-                                              unique_ptr<DraftMessage> &&draft_message) {
-  CHECK(d != nullptr);
-  CHECK(last_database_message != nullptr || draft_message != nullptr);
-  CHECK(!td_->auth_manager_->is_bot());
-
-  bool need_update_dialog_pos = false;
-  bool was_added_last_message = false;
-  if (last_database_message != nullptr) {
-    auto dialog_id = d->dialog_id;
-    auto message_id = last_database_message->message_id;
-    CHECK(message_id.is_valid());
-    LOG_CHECK(d->last_database_message_id == message_id)
-        << message_id << " " << d->last_database_message_id << " " << d->debug_set_dialog_last_database_message_id;
-
-    const Message *m = nullptr;
-    if (td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-      bool need_update = false;
-      m = add_message_to_dialog(d, std::move(last_database_message), true, false, &need_update, &need_update_dialog_pos,
-                                "add_pending_dialog_data 1");
-      if (need_update_dialog_pos) {
-        LOG(ERROR) << "Need to update pos in " << dialog_id;
-      }
-    }
-    if (m != nullptr) {
-      set_dialog_last_message_id(d, m->message_id, "add_pending_dialog_data 2", m);
-      send_update_chat_last_message(d, "add_pending_dialog_data 3");
-      was_added_last_message = true;
-    } else {
-      on_dialog_updated(dialog_id, "add_pending_dialog_data 4");  // resave without last database message
-
-      if (!td_->auth_manager_->is_bot() && dialog_id != being_added_dialog_id_ &&
-          dialog_id != being_added_by_new_message_dialog_id_ && (d->order != DEFAULT_ORDER || is_dialog_sponsored(d))) {
-        load_last_dialog_message(d, "add_pending_dialog_data 5");
-      }
-    }
-  }
-  if (draft_message != nullptr) {
-    d->draft_message = std::move(draft_message);
-    need_update_dialog_pos = true;
-    send_update_chat_draft_message(d);
-  }
-  if (d->pending_order != DEFAULT_ORDER) {
-    d->pending_order = DEFAULT_ORDER;
-    need_update_dialog_pos = true;
-  }
-
-  if (need_update_dialog_pos) {
-    update_dialog_pos(d, "add_pending_dialog_data 6");
-  }
-  return was_added_last_message;
-}
-
-void MessagesManager::update_dialogs_hints(const Dialog *d) {
-  if (!td_->auth_manager_->is_bot() && d->order != DEFAULT_ORDER) {
-    dialogs_hints_.add(-d->dialog_id.get(), td_->dialog_manager_->get_dialog_search_text(d->dialog_id));
-  }
-}
-
-void MessagesManager::update_dialogs_hints_rating(const Dialog *d) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (d->order == DEFAULT_ORDER) {
-    LOG(INFO) << "Remove " << d->dialog_id << " from chats search";
-    dialogs_hints_.remove(-d->dialog_id.get());
-  } else {
-    LOG(INFO) << "Change position of " << d->dialog_id << " in chats search";
-    dialogs_hints_.set_rating(-d->dialog_id.get(), -get_dialog_base_order(d));
-  }
-}
-
-int64 MessagesManager::get_dialog_order(MessageId message_id, int32 message_date) {
-  CHECK(!message_id.is_scheduled());
-  return (static_cast<int64>(message_date) << 32) +
-         message_id.get_prev_server_message_id().get_server_message_id().get();
-}
-
-bool MessagesManager::is_dialog_sponsored(const Dialog *d) const {
-  return d->order == DEFAULT_ORDER && d->dialog_id == sponsored_dialog_id_;
-}
-
-int64 MessagesManager::get_dialog_base_order(const Dialog *d) const {
-  if (td_->auth_manager_->is_bot()) {
-    return 0;  // to not call get_dialog_list
-  }
-  if (is_dialog_sponsored(d)) {
-    return SPONSORED_DIALOG_ORDER;
-  }
-  if (d->order == DEFAULT_ORDER) {
-    return 0;
-  }
-  auto pinned_order = get_dialog_pinned_order(DialogListId(FolderId::main()), d->dialog_id);
-  if (pinned_order != DEFAULT_ORDER) {
-    return pinned_order;
-  }
-  return d->order;
-}
-
-int64 MessagesManager::get_dialog_private_order(const DialogList *list, const Dialog *d) const {
-  if (list == nullptr || td_->auth_manager_->is_bot()) {
-    return 0;
-  }
-
-  if (is_dialog_sponsored(d) && list->dialog_list_id == DialogListId(FolderId::main())) {
-    return SPONSORED_DIALOG_ORDER;
-  }
-  if (d->order == DEFAULT_ORDER) {
-    return 0;
-  }
-  auto pinned_order = get_dialog_pinned_order(list, d->dialog_id);
-  if (pinned_order != DEFAULT_ORDER) {
-    return pinned_order;
-  }
-  return d->order;
-}
-
-td_api::object_ptr<td_api::chatPosition> MessagesManager::get_chat_position_object(DialogListId dialog_list_id,
-                                                                                   const Dialog *d) const {
-  if (td_->auth_manager_->is_bot()) {
-    return nullptr;
-  }
-
-  auto *list = get_dialog_list(dialog_list_id);
-  if (list == nullptr) {
-    return nullptr;
-  }
-
-  auto position = get_dialog_position_in_list(list, d);
-  if (position.public_order == 0) {
-    return nullptr;
-  }
-
-  auto chat_source = position.is_sponsored ? sponsored_dialog_source_.get_chat_source_object() : nullptr;
-  return td_api::make_object<td_api::chatPosition>(dialog_list_id.get_chat_list_object(), position.public_order,
-                                                   position.is_pinned, std::move(chat_source));
-}
-
-vector<td_api::object_ptr<td_api::chatPosition>> MessagesManager::get_chat_positions_object(const Dialog *d) const {
-  vector<td_api::object_ptr<td_api::chatPosition>> positions;
-  if (!td_->auth_manager_->is_bot()) {
-    for (auto dialog_list_id : get_dialog_list_ids(d)) {
-      auto position = get_chat_position_object(dialog_list_id, d);
-      if (position != nullptr) {
-        positions.push_back(std::move(position));
-      }
-    }
-    if (is_dialog_sponsored(d)) {
-      CHECK(positions.empty());
-      positions.push_back(get_chat_position_object(DialogListId(FolderId::main()), d));
-    }
-  }
-  return positions;
-}
-
-int64 MessagesManager::get_next_pinned_dialog_order() {
-  current_pinned_dialog_order_++;
-  LOG(INFO) << "Assign pinned_order = " << current_pinned_dialog_order_;
-  return current_pinned_dialog_order_;
-}
-
-void MessagesManager::update_dialog_pos(Dialog *d, const char *source, bool need_send_update,
-                                        bool is_loaded_from_database) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  LOG(INFO) << "Trying to update " << d->dialog_id << " order from " << source;
-
-  int64 new_order = DEFAULT_ORDER;
-  if (!td_->dialog_manager_->is_dialog_removed_from_dialog_list(d->dialog_id)) {
-    if (d->last_message_id != MessageId()) {
-      auto m = get_message(d, d->last_message_id);
-      CHECK(m != nullptr);
-      LOG(INFO) << "Last message at " << m->date << " found";
-      int64 last_message_order = get_dialog_order(m->message_id, m->date);
-      if (last_message_order > new_order) {
-        new_order = last_message_order;
-      }
-    } else if (d->delete_last_message_date > 0) {
-      LOG(INFO) << "Deleted last " << d->deleted_last_message_id << " at " << d->delete_last_message_date << " found";
-      int64 delete_order = get_dialog_order(d->deleted_last_message_id, d->delete_last_message_date);
-      if (delete_order > new_order) {
-        new_order = delete_order;
-      }
-    } else if (d->last_clear_history_date > 0) {
-      LOG(INFO) << "Clear history at " << d->last_clear_history_date << " found";
-      int64 clear_order = get_dialog_order(d->last_clear_history_message_id, d->last_clear_history_date);
-      if (clear_order > new_order) {
-        new_order = clear_order;
-      }
-    }
-    if (d->pending_order != DEFAULT_ORDER) {
-      LOG(INFO) << "Pending order " << d->pending_order << " found";
-      if (d->pending_order > new_order) {
-        new_order = d->pending_order;
-      }
-    }
-    if (d->draft_message != nullptr && !need_hide_dialog_draft_message(d)) {
-      auto draft_message_date = d->draft_message->get_date();
-      LOG(INFO) << "Draft message at " << draft_message_date << " found";
-      int64 draft_order = get_dialog_order(MessageId(), draft_message_date);
-      if (draft_order > new_order) {
-        new_order = draft_order;
-      }
-    }
-    switch (d->dialog_id.get_type()) {
-      case DialogType::Chat: {
-        auto chat_id = d->dialog_id.get_chat_id();
-        auto date = td_->chat_manager_->get_chat_date(chat_id);
-        LOG(INFO) << "Creation at " << date << " found";
-        int64 join_order = get_dialog_order(MessageId(), date);
-        if (join_order > new_order && td_->chat_manager_->get_chat_status(chat_id).is_member()) {
-          new_order = join_order;
-        }
-        break;
-      }
-      case DialogType::Channel: {
-        auto date = td_->chat_manager_->get_channel_date(d->dialog_id.get_channel_id());
-        LOG(INFO) << "Join at " << date << " found";
-        int64 join_order = get_dialog_order(MessageId(), date);
-        if (join_order > new_order) {
-          new_order = join_order;
-        }
-        break;
-      }
-      case DialogType::SecretChat: {
-        auto date = td_->user_manager_->get_secret_chat_date(d->dialog_id.get_secret_chat_id());
-        if (date != 0 && !is_deleted_secret_chat(d)) {
-          LOG(INFO) << "Creation at " << date << " found";
-          int64 creation_order = get_dialog_order(MessageId(), date);
-          if (creation_order > new_order) {
-            new_order = creation_order;
-          }
-        }
-        break;
-      }
-      default:
-        break;
-    }
-    if (new_order == DEFAULT_ORDER && !d->is_empty) {
-      LOG(INFO) << "There are no known messages in the chat, just leave it where it is";
-      new_order = d->order;
-      load_last_dialog_message(d, source);
-    }
-  }
-
-  if (set_dialog_order(d, new_order, need_send_update, is_loaded_from_database, source)) {
-    on_dialog_updated(d->dialog_id, "update_dialog_pos");
-  }
-}
-
-bool MessagesManager::set_dialog_order(Dialog *d, int64 new_order, bool need_send_update, bool is_loaded_from_database,
-                                       const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  CHECK(d != nullptr);
-  DialogId dialog_id = d->dialog_id;
-  DialogDate old_date(d->order, dialog_id);
-  DialogDate new_date(new_order, dialog_id);
-
-  if (old_date == new_date) {
-    LOG(INFO) << "Order of " << d->dialog_id << " from " << d->folder_id << " is still " << new_order << " from "
-              << source;
-  } else {
-    LOG(INFO) << "Update order of " << dialog_id << " from " << d->folder_id << " from " << d->order << " to "
-              << new_order << " from " << source;
-  }
-
-  auto folder_ptr = get_dialog_folder(d->folder_id);
-  LOG_CHECK(folder_ptr != nullptr) << is_inited_ << ' ' << create_folders_source_ << ' ' << G()->close_flag() << ' '
-                                   << dialog_id << ' ' << d->folder_id << ' ' << is_loaded_from_database << ' '
-                                   << td_->auth_manager_->is_authorized() << ' ' << td_->auth_manager_->was_authorized()
-                                   << ' ' << source;
-  auto &folder = *folder_ptr;
-  if (old_date == new_date) {
-    if (new_order == DEFAULT_ORDER) {
-      // first addition of a new left dialog
-      if (folder.ordered_dialogs_.insert(new_date).second) {
-        for (const auto &dialog_list : dialog_lists_) {
-          if (get_dialog_pinned_order(&dialog_list.second, d->dialog_id) != DEFAULT_ORDER) {
-            set_dialog_is_pinned(dialog_list.first, d, false);
-          }
-        }
-      }
-    }
-
-    return false;
-  }
-
-  auto dialog_positions = get_dialog_positions(d);
-
-  if (folder.ordered_dialogs_.erase(old_date) == 0) {
-    LOG_IF(ERROR, d->order != DEFAULT_ORDER) << dialog_id << " not found in the chat list from " << source;
-  }
-
-  folder.ordered_dialogs_.insert(new_date);
-
-  bool is_added = (d->order == DEFAULT_ORDER);
-  bool is_removed = (new_order == DEFAULT_ORDER);
-
-  d->order = new_order;
-
-  if (is_added) {
-    update_dialogs_hints(d);
-  }
-  update_dialogs_hints_rating(d);
-
-  update_dialog_lists(d, std::move(dialog_positions), need_send_update, is_loaded_from_database, source);
-
-  if (!is_loaded_from_database) {
-    auto dialog_type = dialog_id.get_type();
-    if (dialog_type == DialogType::Channel && is_added && being_added_dialog_id_ != dialog_id) {
-      repair_channel_server_unread_count(d);
-      schedule_get_channel_difference(dialog_id, 0, MessageId(), 0.001, source);
-    }
-    if (dialog_type == DialogType::Channel && is_removed) {
-      remove_all_dialog_notifications(d, false, source);
-      remove_all_dialog_notifications(d, true, source);
-      td_->dialog_action_manager_->clear_active_dialog_actions(dialog_id);
-    }
-  }
-
-  return true;
-}
-
-void MessagesManager::update_dialog_lists(
-    Dialog *d, std::unordered_map<DialogListId, DialogPositionInList, DialogListIdHash> &&old_positions,
-    bool need_send_update, bool is_loaded_from_database, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(d != nullptr);
-  auto dialog_id = d->dialog_id;
-  if (being_added_dialog_id_ == dialog_id) {
-    // do not try to update dialog lists, while the dialog isn't inited
-    return;
-  }
-
-  LOG(INFO) << "Update lists of " << dialog_id << " from " << source;
-
-  if (d->order == DEFAULT_ORDER) {
-    for (auto &old_position : old_positions) {
-      if (old_position.second.is_pinned) {
-        set_dialog_is_pinned(old_position.first, d, false, false);
-      }
-    }
-
-    if (d->folder_id != FolderId::main()) {
-      LOG(INFO) << "Change folder of " << dialog_id << " to " << FolderId::main();
-      DialogDate dialog_date(d->order, dialog_id);
-      get_dialog_folder(d->folder_id)->ordered_dialogs_.erase(dialog_date);
-      do_set_dialog_folder_id(d, FolderId::main());
-      get_dialog_folder(d->folder_id)->ordered_dialogs_.insert(dialog_date);
-    }
-  }
-
-  for (auto &dialog_list : dialog_lists_) {
-    auto dialog_list_id = dialog_list.first;
-    auto &list = dialog_list.second;
-
-    const DialogPositionInList &old_position = old_positions[dialog_list_id];
-    const DialogPositionInList new_position = get_dialog_position_in_list(&list, d, true);
-
-    // sponsored chat is never "in list"
-    bool was_in_list = old_position.order != DEFAULT_ORDER && old_position.private_order != 0;
-    bool is_in_list = new_position.order != DEFAULT_ORDER && new_position.private_order != 0;
-    CHECK(was_in_list == is_dialog_in_list(d, dialog_list_id));
-
-    LOG(DEBUG) << "Update position of " << dialog_id << " in " << dialog_list_id << " from " << old_position << " to "
-               << new_position;
-
-    bool need_update_unread_chat_count = false;
-    if (was_in_list != is_in_list) {
-      const int32 delta = was_in_list ? -1 : 1;
-      list.in_memory_dialog_total_count_ += delta;
-      if (!is_loaded_from_database) {
-        int32 &total_count = dialog_id.get_type() == DialogType::SecretChat ? list.secret_chat_total_count_
-                                                                            : list.server_dialog_total_count_;
-        if (total_count != -1) {
-          total_count += delta;
-          if (total_count < 0) {
-            LOG(ERROR) << "Total chat count in " << dialog_list_id << " became negative after removing " << dialog_id;
-            total_count = 0;
-          }
-        }
-      }
-
-      if (!is_loaded_from_database) {
-        need_update_unread_chat_count =
-            list.is_dialog_unread_count_inited_ && old_position.total_dialog_count != get_dialog_total_count(list);
-        auto unread_count = d->server_unread_count + d->local_unread_count;
-        const char *change_source = was_in_list ? "on_dialog_remove" : "on_dialog_add";
-        if (unread_count != 0 && list.is_message_unread_count_inited_) {
-          unread_count *= delta;
-
-          list.unread_message_total_count_ += unread_count;
-          if (is_dialog_muted(d)) {
-            list.unread_message_muted_count_ += unread_count;
-          }
-          send_update_unread_message_count(list, dialog_id, true, change_source);
-        }
-        if ((unread_count != 0 || d->is_marked_as_unread) && list.is_dialog_unread_count_inited_) {
-          list.unread_dialog_total_count_ += delta;
-          if (unread_count == 0 && d->is_marked_as_unread) {
-            list.unread_dialog_marked_count_ += delta;
-          }
-          if (is_dialog_muted(d)) {
-            list.unread_dialog_muted_count_ += delta;
-            if (unread_count == 0 && d->is_marked_as_unread) {
-              list.unread_dialog_muted_marked_count_ += delta;
-            }
-          }
-          need_update_unread_chat_count = true;
-        }
-        if (need_update_unread_chat_count) {
-          send_update_unread_chat_count(list, dialog_id, true, change_source);
-        }
-      }
-
-      if (was_in_list) {
-        remove_dialog_from_list(d, dialog_list_id);
-      } else {
-        add_dialog_to_list(d, dialog_list_id);
-      }
-    }
-    if (!need_update_unread_chat_count && list.is_dialog_unread_count_inited_ &&
-        old_position.total_dialog_count != get_dialog_total_count(list)) {
-      send_update_unread_chat_count(list, dialog_id, true, "changed total count");
-    }
-
-    if (need_send_update && need_send_update_chat_position(old_position, new_position)) {
-      send_update_chat_position(dialog_list_id, d, source);
-    }
-
-    if (!is_loaded_from_database && !old_position.is_sponsored && new_position.is_sponsored) {
-      // a chat is sponsored only if user isn't a chat member
-      remove_all_dialog_notifications(d, false, "update_dialog_lists 3");
-      remove_all_dialog_notifications(d, true, "update_dialog_lists 4");
-    }
-  }
-}
-
-void MessagesManager::update_last_dialog_date(FolderId folder_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto *folder = get_dialog_folder(folder_id);
-  CHECK(folder != nullptr);
-  auto old_last_dialog_date = folder->folder_last_dialog_date_;
-  folder->folder_last_dialog_date_ = folder->last_server_dialog_date_;
-  CHECK(old_last_dialog_date <= folder->folder_last_dialog_date_);
-
-  LOG(INFO) << "Update last dialog date in " << folder_id << " from " << old_last_dialog_date << " to "
-            << folder->folder_last_dialog_date_;
-  LOG(INFO) << "Know about " << folder->ordered_dialogs_.size() << " chats";
-
-  if (old_last_dialog_date != folder->folder_last_dialog_date_) {
-    for (auto &dialog_list : dialog_lists_) {
-      update_list_last_pinned_dialog_date(dialog_list.second);
-      update_list_last_dialog_date(dialog_list.second);
-    }
-  }
-
-  if (G()->use_message_database() && folder->last_database_server_dialog_date_ < folder->last_server_dialog_date_) {
-    auto last_server_dialog_date_string = PSTRING() << folder->last_server_dialog_date_.get_order() << ' '
-                                                    << folder->last_server_dialog_date_.get_dialog_id().get();
-    G()->td_db()->get_binlog_pmc()->set(PSTRING() << "last_server_dialog_date" << folder_id.get(),
-                                        last_server_dialog_date_string);
-    LOG(INFO) << "Save last server dialog date " << folder->last_server_dialog_date_;
-    folder->last_database_server_dialog_date_ = folder->last_server_dialog_date_;
-    folder->last_loaded_database_dialog_date_ = folder->last_server_dialog_date_;
-  }
-}
-
-// must not call get_dialog_filter
-bool MessagesManager::do_update_list_last_pinned_dialog_date(DialogList &list) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (list.last_pinned_dialog_date_ == MAX_DIALOG_DATE) {
-    return false;
-  }
-  if (!list.are_pinned_dialogs_inited_) {
-    return false;
-  }
-
-  DialogDate max_dialog_date = MIN_DIALOG_DATE;
-  for (const auto &pinned_dialog : list.pinned_dialogs_) {
-    if (!have_dialog(pinned_dialog.get_dialog_id())) {
-      break;
-    }
-
-    max_dialog_date = pinned_dialog;
-  }
-  if (list.pinned_dialogs_.empty() || max_dialog_date == list.pinned_dialogs_.back()) {
-    max_dialog_date = MAX_DIALOG_DATE;
-  }
-  if (list.last_pinned_dialog_date_ < max_dialog_date) {
-    LOG(INFO) << "Update last pinned dialog date in " << list.dialog_list_id << " from "
-              << list.last_pinned_dialog_date_ << " to " << max_dialog_date;
-    list.last_pinned_dialog_date_ = max_dialog_date;
-    return true;
-  }
-  return false;
-}
-
-void MessagesManager::update_list_last_pinned_dialog_date(DialogList &list) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (do_update_list_last_pinned_dialog_date(list)) {
-    update_list_last_dialog_date(list);
-  }
-}
-
-// must not call get_dialog_filter
-bool MessagesManager::do_update_list_last_dialog_date(DialogList &list, const vector<FolderId> &folder_ids) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto new_last_dialog_date = list.last_pinned_dialog_date_;
-  for (auto folder_id : folder_ids) {
-    const auto &folder = *get_dialog_folder(folder_id);
-    if (folder.folder_last_dialog_date_ < new_last_dialog_date) {
-      new_last_dialog_date = folder.folder_last_dialog_date_;
-    }
-  }
-
-  if (list.list_last_dialog_date_ != new_last_dialog_date) {
-    auto old_last_dialog_date = list.list_last_dialog_date_;
-    LOG(INFO) << "Update last dialog date in " << list.dialog_list_id << " from " << old_last_dialog_date << " to "
-              << new_last_dialog_date;
-    LOG_CHECK(old_last_dialog_date < new_last_dialog_date)
-        << list.dialog_list_id << " " << old_last_dialog_date << " " << new_last_dialog_date << " "
-        << get_dialog_list_folder_ids(list) << " " << list.last_pinned_dialog_date_ << " "
-        << get_dialog_folder(FolderId::main())->folder_last_dialog_date_ << " "
-        << get_dialog_folder(FolderId::archive())->folder_last_dialog_date_ << " " << list.load_list_queries_.size()
-        << " " << list.pinned_dialogs_;
-    list.list_last_dialog_date_ = new_last_dialog_date;
-    return true;
-  }
-  return false;
-}
-
-void MessagesManager::update_list_last_dialog_date(DialogList &list) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto old_dialog_total_count = get_dialog_total_count(list);
-  auto old_last_dialog_date = list.list_last_dialog_date_;
-  if (!do_update_list_last_dialog_date(list, get_dialog_list_folder_ids(list))) {
-    LOG(INFO) << "Don't need to update last dialog date in " << list.dialog_list_id;
-    return;
-  }
-
-  for (auto it = std::upper_bound(list.pinned_dialogs_.begin(), list.pinned_dialogs_.end(), old_last_dialog_date);
-       it != list.pinned_dialogs_.end() && *it <= list.list_last_dialog_date_; ++it) {
-    auto dialog_id = it->get_dialog_id();
-    auto d = get_dialog(dialog_id);
-    CHECK(d != nullptr);
-    send_update_chat_position(list.dialog_list_id, d, "update_list_last_dialog_date");
-  }
-
-  bool is_list_further_loaded = list.list_last_dialog_date_ == MAX_DIALOG_DATE;
-  for (auto folder_id : get_dialog_list_folder_ids(list)) {
-    const auto &folder = *get_dialog_folder(folder_id);
-    for (auto it = folder.ordered_dialogs_.upper_bound(old_last_dialog_date);
-         it != folder.ordered_dialogs_.end() && *it <= folder.folder_last_dialog_date_; ++it) {
-      if (it->get_order() == DEFAULT_ORDER) {
-        break;
-      }
-      auto dialog_id = it->get_dialog_id();
-      if (get_dialog_pinned_order(&list, dialog_id) == DEFAULT_ORDER) {
-        auto d = get_dialog(dialog_id);
-        CHECK(d != nullptr);
-        if (is_dialog_in_list(d, list.dialog_list_id)) {
-          send_update_chat_position(list.dialog_list_id, d, "update_list_last_dialog_date 2");
-          is_list_further_loaded = true;
-        }
-      }
-    }
-  }
-
-  if (list.list_last_dialog_date_ == MAX_DIALOG_DATE) {
-    recalc_unread_count(list.dialog_list_id, old_dialog_total_count, true);
-  }
-
-  LOG(INFO) << "After updating last dialog date in " << list.dialog_list_id << " to " << list.list_last_dialog_date_
-            << " have is_list_further_loaded == " << is_list_further_loaded << " and " << list.load_list_queries_.size()
-            << " pending load list queries";
-  if (is_list_further_loaded && !list.load_list_queries_.empty()) {
-    set_promises(list.load_list_queries_);
-  }
-}
-
-MessagesManager::Dialog *MessagesManager::get_dialog(DialogId dialog_id) {
-  return dialogs_.get_pointer(dialog_id);
-}
-
-const MessagesManager::Dialog *MessagesManager::get_dialog(DialogId dialog_id) const {
-  return dialogs_.get_pointer(dialog_id);
-}
-
-bool MessagesManager::have_dialog_force(DialogId dialog_id, const char *source) {
-  return loaded_dialogs_.count(dialog_id) > 0 || get_dialog_force(dialog_id, source) != nullptr;
-}
-
-MessagesManager::Dialog *MessagesManager::get_dialog_force(DialogId dialog_id, const char *source) {
-  init();
-
-  Dialog *d = get_dialog(dialog_id);
-  if (d != nullptr) {
-    LOG_CHECK(d->dialog_id == dialog_id) << d->dialog_id << ' ' << dialog_id;
-    return d;
-  }
-
-  if (!dialog_id.is_valid() || !G()->use_message_database() || loaded_dialogs_.count(dialog_id) > 0 ||
-      failed_to_load_dialogs_.count(dialog_id) > 0) {
-    return nullptr;
-  }
-
-  auto r_value = G()->td_db()->get_dialog_db_sync()->get_dialog(dialog_id);
-  if (r_value.is_ok()) {
-    LOG(INFO) << "Loaded " << dialog_id << " from database from " << source;
-    d = on_load_dialog_from_database(dialog_id, r_value.move_as_ok(), source);
-    LOG_CHECK(d == nullptr || d->dialog_id == dialog_id) << d->dialog_id << ' ' << dialog_id;
-  } else {
-    failed_to_load_dialogs_.insert(dialog_id);
-    LOG(INFO) << "Failed to load " << dialog_id << " from database from " << source << ": "
-              << r_value.error().message();
-  }
-  return d;
-}
-
-unique_ptr<MessagesManager::Dialog> MessagesManager::parse_dialog(DialogId dialog_id, const BufferSlice &value,
-                                                                  const char *source) {
-  LOG(INFO) << "Loaded " << dialog_id << " of size " << value.size() << " from database from " << source;
-  CHECK(dialog_id.is_valid());
-  auto dialog = make_unique<Dialog>();
-  Dialog *d = dialog.get();
-  d->dialog_id = dialog_id;
-  invalidate_message_indexes(d);  // must initialize indexes, because some of them could be not parsed
-
-  loaded_dialogs_.insert(dialog_id);
-
-  auto status = log_event_parse(*d, value.as_slice());
-  if (status.is_error() || !d->dialog_id.is_valid() || d->dialog_id != dialog_id) {
-    // can't happen unless database is broken, but has been seen in the wild
-    // if dialog_id is invalid, we can't repair the dialog
-    LOG_CHECK(dialog_id.is_valid()) << "Can't repair " << dialog_id << ' ' << d->dialog_id << ' ' << status << ' '
-                                    << source << ' ' << format::as_hex_dump<4>(value.as_slice());
-
-    LOG(ERROR) << "Repair broken " << dialog_id << ": " << status << ' ' << format::as_hex_dump<4>(value.as_slice());
-
-    // just clean all known data about the dialog
-    dialog = make_unique<Dialog>();
-    d = dialog.get();
-    d->dialog_id = dialog_id;
-    invalidate_message_indexes(d);
-
-    // and try to reget it from the server if possible
-    td_->dialog_manager_->have_dialog_info_force(dialog_id, "parse_dialog");
-    if (td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-      if (dialog_id.get_type() != DialogType::SecretChat) {
-        send_get_dialog_query(dialog_id, Auto(), 0, source);
-      }
-    } else {
-      LOG(ERROR) << "Can't repair unknown " << dialog_id << " from " << source;
-    }
-  }
-  CHECK(dialog_id == d->dialog_id);
-
-  Dependencies dependencies;
-  dependencies.add_dialog_dependencies(dialog_id);
-  if (d->default_join_group_call_as_dialog_id != dialog_id) {
-    dependencies.add_message_sender_dependencies(d->default_join_group_call_as_dialog_id);
-  }
-  if (d->default_send_message_as_dialog_id != dialog_id) {
-    dependencies.add_message_sender_dependencies(d->default_send_message_as_dialog_id);
-  }
-  d->messages.foreach([&](const MessageId &message_id, const unique_ptr<Message> &message) {
-    add_message_dependencies(dependencies, message.get());
-  });
-  add_draft_message_dependencies(dependencies, d->draft_message);
-  if (d->business_bot_manage_bar != nullptr) {
-    d->business_bot_manage_bar->add_dependencies(dependencies);
-  }
-  for (auto user_id : d->pending_join_request_user_ids) {
-    dependencies.add(user_id);
-  }
-  if (!dependencies.resolve_force(td_, source)) {
-    send_get_dialog_query(dialog_id, Auto(), 0, source);
-  }
-
-  if (td_->auth_manager_->is_bot()) {
-    if (d->unread_mention_count > 0) {
-      set_dialog_unread_mention_count(d, 0);
-    }
-    if (d->unread_reaction_count > 0) {
-      set_dialog_unread_reaction_count(d, 0);
-    }
-  }
-
-  auto dialog_type = d->dialog_id.get_type();
-  switch (dialog_type) {
-    case DialogType::Chat:
-    case DialogType::Channel:
-      if (get_active_reactions(d->available_reactions).empty() != ((d->available_reactions_generation & 1) == 1)) {
-        set_dialog_next_available_reactions_generation(d, d->available_reactions_generation);
-      }
-      if (td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-        d->available_reactions.fix_broadcast_reactions(active_reaction_types_);
-      }
-      break;
-    case DialogType::User:
-    case DialogType::SecretChat:
-    default:
-      break;
-  }
-  if (!d->need_drop_default_send_message_as_dialog_id && d->default_send_message_as_dialog_id.is_valid() &&
-      dialog_type == DialogType::Channel && !td_->dialog_manager_->is_broadcast_channel(d->dialog_id) &&
-      !td_->chat_manager_->is_channel_public(dialog_id.get_channel_id()) &&
-      !td_->chat_manager_->get_channel_has_linked_channel(dialog_id.get_channel_id())) {
-    LOG(INFO) << "Drop message sender in " << dialog_id;
-    d->need_drop_default_send_message_as_dialog_id = true;
-  }
-
-  return dialog;
-}
-
-MessagesManager::Dialog *MessagesManager::on_load_dialog_from_database(DialogId dialog_id, BufferSlice &&value,
-                                                                       const char *source) {
-  CHECK(G()->use_message_database());
-
-  if (!dialog_id.is_valid()) {
-    // hack
-    LogEventParser dialog_id_parser(value.as_slice());
-    int32 flags;
-    parse(flags, dialog_id_parser);
-    parse(dialog_id, dialog_id_parser);
-
-    if (!dialog_id.is_valid()) {
-      LOG(ERROR) << "Failed to parse dialog_id from blob. Database is broken";
-      return nullptr;
-    }
-  }
-
-  auto old_d = get_dialog(dialog_id);
-  if (old_d != nullptr) {
-    return old_d;
-  }
-
-  LOG(INFO) << "Add new " << dialog_id << " from database from " << source;
-  return add_new_dialog(parse_dialog(dialog_id, value, source), true, source);
-}
-
-Result<MessagesManager::Dialog *> MessagesManager::check_dialog_access(DialogId dialog_id, bool allow_secret_chats,
-                                                                       AccessRights access_rights, const char *source) {
-  auto *d = get_dialog_force(dialog_id, source);
-  if (d == nullptr) {
-    if (!dialog_id.is_valid()) {
-      return Status::Error(400, "Invalid chat identifier specified");
-    }
-    return Status::Error(400, "Chat not found");
-  }
-  TRY_STATUS(td_->dialog_manager_->check_dialog_access_in_memory(d->dialog_id, allow_secret_chats, access_rights));
-  return d;
-}
-
-vector<FolderId> MessagesManager::get_dialog_list_folder_ids(const DialogList &list) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (list.dialog_list_id.is_folder()) {
-    return {list.dialog_list_id.get_folder_id()};
-  }
-  if (list.dialog_list_id.is_filter()) {
-    return td_->dialog_filter_manager_->get_dialog_filter_folder_ids(list.dialog_list_id.get_filter_id());
-  }
-  UNREACHABLE();
-  return {};
-}
-
-bool MessagesManager::has_dialogs_from_folder(const DialogList &list, const DialogFolder &folder) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (list.dialog_list_id.is_folder()) {
-    return list.dialog_list_id.get_folder_id() == folder.folder_id;
-  }
-  if (list.dialog_list_id.is_filter()) {
-    return td::contains(td_->dialog_filter_manager_->get_dialog_filter_folder_ids(list.dialog_list_id.get_filter_id()),
-                        folder.folder_id);
-  }
-  UNREACHABLE();
-  return false;
-}
-
-bool MessagesManager::is_dialog_in_list(const Dialog *d, DialogListId dialog_list_id) {
-  return td::contains(d->dialog_list_ids, dialog_list_id);
-}
-
-void MessagesManager::add_dialog_to_list(Dialog *d, DialogListId dialog_list_id) {
-  LOG(INFO) << "Add " << d->dialog_id << " to " << dialog_list_id;
-  CHECK(!is_dialog_in_list(d, dialog_list_id));
-  d->dialog_list_ids.push_back(dialog_list_id);
-  CHECK(d->is_update_new_chat_sent);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatAddedToList>(
-                   get_chat_id_object(d->dialog_id, "updateChatAddedToList"), dialog_list_id.get_chat_list_object()));
-}
-
-void MessagesManager::remove_dialog_from_list(Dialog *d, DialogListId dialog_list_id) {
-  LOG(INFO) << "Remove " << d->dialog_id << " from " << dialog_list_id;
-  bool is_removed = td::remove(d->dialog_list_ids, dialog_list_id);
-  CHECK(is_removed);
-  CHECK(d->is_update_new_chat_sent);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatRemovedFromList>(
-                   get_chat_id_object(d->dialog_id, "remove_dialog_from_list"), dialog_list_id.get_chat_list_object()));
-}
-
-DialogFilterDialogInfo MessagesManager::get_dialog_info_for_dialog_filter(const Dialog *d) const {
-  CHECK(d != nullptr);
-  CHECK(d->order != DEFAULT_ORDER);
-  DialogFilterDialogInfo dialog_info;
-  dialog_info.dialog_id_ = d->dialog_id;
-  dialog_info.folder_id_ = d->folder_id;
-  dialog_info.has_unread_mentions_ = d->unread_mention_count != 0 && !is_dialog_mention_notifications_disabled(d);
-  dialog_info.is_muted_ = is_dialog_muted(d);
-  dialog_info.has_unread_messages_ = d->server_unread_count + d->local_unread_count != 0 || d->is_marked_as_unread;
-  return dialog_info;
-}
-
-bool MessagesManager::is_dialog_in_dialog_list(DialogId dialog_id) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  const Dialog *d = get_dialog(dialog_id);
-  return d != nullptr && d->order != DEFAULT_ORDER;
-}
-
-bool MessagesManager::need_dialog_in_list(const Dialog *d, const DialogList &list) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (d->order == DEFAULT_ORDER) {
-    return false;
-  }
-  if (list.dialog_list_id.is_folder()) {
-    return d->folder_id == list.dialog_list_id.get_folder_id();
-  }
-  if (list.dialog_list_id.is_filter()) {
-    return td_->dialog_filter_manager_->need_dialog_in_filter(list.dialog_list_id.get_filter_id(),
-                                                              get_dialog_info_for_dialog_filter(d));
-  }
-  UNREACHABLE();
-  return false;
-}
-
-bool MessagesManager::need_send_update_chat_position(const DialogPositionInList &old_position,
-                                                     const DialogPositionInList &new_position) {
-  if (old_position.public_order != new_position.public_order) {
-    return true;
-  }
-  if (old_position.public_order == 0) {
-    return false;
-  }
-  return old_position.is_pinned != new_position.is_pinned || old_position.is_sponsored != new_position.is_sponsored;
-}
-
-MessagesManager::DialogPositionInList MessagesManager::get_dialog_position_in_list(const DialogList *list,
-                                                                                   const Dialog *d, bool actual) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(list != nullptr);
-  CHECK(d != nullptr);
-
-  DialogPositionInList position;
-  position.order = d->order;
-  if (is_dialog_sponsored(d) || (actual ? need_dialog_in_list(d, *list) : is_dialog_in_list(d, list->dialog_list_id))) {
-    position.private_order = get_dialog_private_order(list, d);
-  }
-  if (position.private_order != 0) {
-    position.public_order =
-        DialogDate(position.private_order, d->dialog_id) <= list->list_last_dialog_date_ ? position.private_order : 0;
-    position.is_pinned = get_dialog_pinned_order(list, d->dialog_id) != DEFAULT_ORDER;
-    position.is_sponsored = is_dialog_sponsored(d);
-  }
-  position.total_dialog_count = get_dialog_total_count(*list);
-  return position;
-}
-
-std::unordered_map<DialogListId, MessagesManager::DialogPositionInList, DialogListIdHash>
-MessagesManager::get_dialog_positions(const Dialog *d) const {
-  CHECK(d != nullptr);
-  std::unordered_map<DialogListId, MessagesManager::DialogPositionInList, DialogListIdHash> positions;
-  if (!td_->auth_manager_->is_bot()) {
-    for (const auto &dialog_list : dialog_lists_) {
-      positions.emplace(dialog_list.first, get_dialog_position_in_list(&dialog_list.second, d));
-    }
-  }
-  return positions;
-}
-
-vector<DialogListId> MessagesManager::get_dialog_list_ids(const Dialog *d) {
-  return d->dialog_list_ids;
-}
-
-MessagesManager::DialogListView MessagesManager::get_dialog_lists(const Dialog *d) {
-  return DialogListView(this, get_dialog_list_ids(d));
-}
-
-MessagesManager::DialogList &MessagesManager::add_dialog_list(DialogListId dialog_list_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  bool is_new = dialog_lists_.count(dialog_list_id) == 0;
-  auto &list = dialog_lists_[dialog_list_id];
-  list.dialog_list_id = dialog_list_id;
-  if (is_new) {
-    LOG(INFO) << "Create " << dialog_list_id;
-    list.unique_id_ = ++current_dialog_list_unique_id_;
-  }
-  return list;
-}
-
-MessagesManager::DialogList *MessagesManager::get_dialog_list(DialogListId dialog_list_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto it = dialog_lists_.find(dialog_list_id);
-  if (it == dialog_lists_.end()) {
-    return nullptr;
-  }
-  return &it->second;
-}
-
-const MessagesManager::DialogList *MessagesManager::get_dialog_list(DialogListId dialog_list_id) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto it = dialog_lists_.find(dialog_list_id);
-  if (it == dialog_lists_.end()) {
-    return nullptr;
-  }
-  return &it->second;
-}
-
-MessagesManager::DialogFolder *MessagesManager::get_dialog_folder(FolderId folder_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto it = dialog_folders_.find(folder_id);
-  if (it == dialog_folders_.end()) {
-    return nullptr;
-  }
-  return &it->second;
-}
-
-const MessagesManager::DialogFolder *MessagesManager::get_dialog_folder(FolderId folder_id) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto it = dialog_folders_.find(folder_id);
-  if (it == dialog_folders_.end()) {
-    return nullptr;
-  }
-  return &it->second;
-}
-
-string MessagesManager::get_channel_pts_key(DialogId dialog_id) {
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  auto channel_id = dialog_id.get_channel_id();
-  return PSTRING() << "ch.p" << channel_id.get();
-}
-
-int32 MessagesManager::load_channel_pts(DialogId dialog_id) const {
-  if (td_->ignore_background_updates() ||
-      !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    G()->td_db()->get_binlog_pmc()->erase(get_channel_pts_key(dialog_id));  // just in case
-    return 0;
-  }
-  auto pts = to_integer<int32>(G()->td_db()->get_binlog_pmc()->get(get_channel_pts_key(dialog_id)));
-  LOG(INFO) << "Load " << dialog_id << " PTS = " << pts;
-  return pts;
-}
-
-void MessagesManager::set_channel_pts(Dialog *d, int32 new_pts, const char *source) {
-  CHECK(d != nullptr);
-  CHECK(d->dialog_id.get_type() == DialogType::Channel);
-
-  LOG_IF(ERROR, running_get_channel_difference(d->dialog_id))
-      << "Set PTS of " << d->dialog_id << " to " << new_pts << " from " << source
-      << " while running getChannelDifference";
-
-  // TODO delete_first_messages support in channels
-  if (new_pts == std::numeric_limits<int32>::max()) {
-    LOG(ERROR) << "Update " << d->dialog_id << " PTS to -1 from " << source;
-    G()->td_db()->get_binlog_pmc()->erase(get_channel_pts_key(d->dialog_id));
-    d->pts = std::numeric_limits<int32>::max();
-    if (d->pending_read_channel_inbox_pts != 0) {
-      d->pending_read_channel_inbox_pts = 0;
-    }
-    return;
-  }
-  if (new_pts > d->pts || (0 < new_pts && new_pts < d->pts - 99999)) {  // PTS can only go up or drop cardinally
-    if (new_pts < d->pts - 99999) {
-      LOG(WARNING) << "PTS of " << d->dialog_id << " decreases from " << d->pts << " to " << new_pts << " from "
-                   << source;
-    } else {
-      LOG(INFO) << "Update " << d->dialog_id << " PTS to " << new_pts << " from " << source;
-    }
-
-    d->pts = new_pts;
-    if (d->pending_read_channel_inbox_pts != 0 && d->pending_read_channel_inbox_pts <= d->pts) {
-      auto pts = d->pending_read_channel_inbox_pts;
-      d->pending_read_channel_inbox_pts = 0;
-      on_dialog_updated(d->dialog_id, "set_channel_pts");
-      if (d->pts == pts) {
-        read_history_inbox(d, d->pending_read_channel_inbox_max_message_id,
-                           d->pending_read_channel_inbox_server_unread_count, "set_channel_pts");
-      } else if (d->pts > pts) {
-        repair_channel_server_unread_count(d);
-      }
-    }
-    if (!td_->ignore_background_updates() &&
-        td_->dialog_manager_->have_input_peer(d->dialog_id, false, AccessRights::Read)) {
-      G()->td_db()->get_binlog_pmc()->set(get_channel_pts_key(d->dialog_id), to_string(new_pts));
-    }
-  } else if (new_pts < d->pts) {
-    LOG(ERROR) << "Receive wrong PTS " << new_pts << " in " << d->dialog_id << " from " << source << ". Current PTS is "
-               << d->pts;
-  }
-}
-
-bool MessagesManager::need_channel_difference_to_add_message(DialogId dialog_id,
-                                                             const tl_object_ptr<telegram_api::Message> &message_ptr) {
-  if (message_ptr == nullptr || DialogId::get_message_dialog_id(message_ptr) != dialog_id) {
-    return false;
-  }
-
-  return need_channel_difference_to_add_message(dialog_id, MessageId::get_message_id(message_ptr, false));
-}
-
-bool MessagesManager::need_channel_difference_to_add_message(DialogId dialog_id, MessageId message_id) {
-  if (td_->auth_manager_->is_bot() || dialog_id.get_type() != DialogType::Channel ||
-      !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read) ||
-      dialog_id == debug_channel_difference_dialog_) {
-    return false;
-  }
-
-  Dialog *d = get_dialog_force(dialog_id, "need_channel_difference_to_add_message");
-  if (d == nullptr) {
-    LOG(DEBUG) << "Can't find " << dialog_id;
-    return load_channel_pts(dialog_id) > 0 && !is_channel_difference_finished_.count(dialog_id);
-  }
-  if (d->last_new_message_id == MessageId()) {
-    LOG(DEBUG) << "Can't find last message in " << dialog_id;
-    return d->pts > 0 && !d->is_channel_difference_finished;
-  }
-
-  LOG(DEBUG) << "Check ability to add " << message_id << " to " << dialog_id;
-  return message_id > d->last_new_message_id;
-}
-
-void MessagesManager::run_after_channel_difference(DialogId dialog_id, MessageId expected_max_message_id,
-                                                   Promise<Unit> &&promise, const char *source) {
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  CHECK(td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read));
-
-  run_after_get_channel_difference_[dialog_id].push_back(std::move(promise));
-
-  const Dialog *d = get_dialog(dialog_id);
-  get_channel_difference(dialog_id, d == nullptr ? load_channel_pts(dialog_id) : d->pts, 0, expected_max_message_id,
-                         true, source);
-}
-
-bool MessagesManager::running_get_channel_difference(DialogId dialog_id) const {
-  return active_get_channel_differences_.count(dialog_id) > 0;
-}
-
-void MessagesManager::on_channel_get_difference_timeout(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  auto d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  get_channel_difference(dialog_id, d->pts, 0, MessageId(), true, "on_channel_get_difference_timeout");
-}
-
-class MessagesManager::GetChannelDifferenceLogEvent {
- public:
-  ChannelId channel_id;
-  int64 access_hash;
-
-  GetChannelDifferenceLogEvent() : channel_id(), access_hash() {
-  }
-
-  GetChannelDifferenceLogEvent(ChannelId channel_id, int64 access_hash)
-      : channel_id(channel_id), access_hash(access_hash) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(channel_id, storer);
-    td::store(access_hash, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(channel_id, parser);
-    td::parse(access_hash, parser);
-  }
-};
-
-void MessagesManager::update_expected_channel_pts(DialogId dialog_id, int32 expected_pts) {
-  if (expected_pts <= 0) {
-    return;
-  }
-  CHECK(dialog_id.is_valid());
-  auto &old_pts = expected_channel_pts_[dialog_id];
-  if (old_pts < expected_pts) {
-    old_pts = expected_pts;
-  }
-}
-
-void MessagesManager::update_expected_channel_max_message_id(DialogId dialog_id, MessageId expected_max_message_id) {
-  if (expected_max_message_id == MessageId() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  CHECK(dialog_id.is_valid());
-  auto &old_max_message_id = expected_channel_max_message_id_[dialog_id];
-  if (old_max_message_id < expected_max_message_id) {
-    old_max_message_id = expected_max_message_id;
-  }
-}
-
-void MessagesManager::schedule_get_channel_difference(DialogId dialog_id, int32 expected_pts,
-                                                      MessageId expected_max_message_id, double delay,
-                                                      const char *source) {
-  LOG(INFO) << "Schedule getDifference in " << dialog_id << " from " << source;
-  update_expected_channel_pts(dialog_id, expected_pts);
-  update_expected_channel_max_message_id(dialog_id, expected_max_message_id);
-  channel_get_difference_retry_timeout_.add_timeout_in(dialog_id.get(), delay);
-}
-
-void MessagesManager::get_channel_difference(DialogId dialog_id, int32 pts, int32 expected_pts,
-                                             MessageId expected_max_message_id, bool force, const char *source,
-                                             bool is_old) {
-  update_expected_channel_pts(dialog_id, expected_pts);
-  update_expected_channel_max_message_id(dialog_id, expected_max_message_id);
-
-  if (channel_get_difference_retry_timeout_.has_timeout(dialog_id.get())) {
-    LOG(INFO) << "Skip running channels.getDifference for " << dialog_id << " from " << source
-              << " because it is scheduled for later time";
-    return;
-  }
-  LOG_CHECK(dialog_id.get_type() == DialogType::Channel) << dialog_id << " " << source;
-
-  if (active_get_channel_differences_.count(dialog_id)) {
-    LOG(INFO) << "Skip running channels.getDifference for " << dialog_id << " from " << source
-              << " because it has already been run";
-    return;
-  }
-
-  debug_last_get_channel_difference_dialog_id_ = dialog_id;
-  debug_last_get_channel_difference_source_ = source;
-
-  auto input_channel = td_->chat_manager_->get_input_channel(dialog_id.get_channel_id());
-  if (input_channel == nullptr) {
-    LOG(ERROR) << "Skip running channels.getDifference for " << dialog_id << " from " << source
-               << " because the channel is unknown";
-    after_get_channel_difference(dialog_id, false);
-    return;
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    LOG(INFO) << "Skip running channels.getDifference for " << dialog_id << " from " << source
-              << " because have no read access to it";
-    after_get_channel_difference(dialog_id, false);
-    return;
-  }
-
-  if (force && get_channel_difference_to_log_event_id_.count(dialog_id) == 0 && !td_->ignore_background_updates() &&
-      input_channel->get_id() == telegram_api::inputChannel::ID) {
-    auto channel_id = dialog_id.get_channel_id();
-    auto access_hash = static_cast<const telegram_api::inputChannel &>(*input_channel).access_hash_;
-    auto log_event = GetChannelDifferenceLogEvent(channel_id, access_hash);
-    auto log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::GetChannelDifference,
-                                   get_log_event_storer(log_event));
-
-    get_channel_difference_to_log_event_id_.emplace(dialog_id, log_event_id);
-  }
-
-  return do_get_channel_difference(dialog_id, pts, force, std::move(input_channel), is_old, source);
-}
-
-void MessagesManager::do_get_channel_difference(DialogId dialog_id, int32 pts, bool force,
-                                                tl_object_ptr<telegram_api::InputChannel> &&input_channel, bool is_old,
-                                                const char *source) {
-  auto inserted = active_get_channel_differences_.emplace(dialog_id, source);
-  if (!inserted.second) {
-    LOG(INFO) << "Skip running channels.getDifference for " << dialog_id << " from " << source
-              << " because it has already been run";
-    return;
-  }
-  // must work even we know nothing about the dialog
-
-  // can be called multiple times before after_get_channel_difference
-  const Dialog *d = get_dialog(dialog_id);
-  if (d != nullptr && d->notification_info != nullptr) {
-    if (d->notification_info->message_notification_group_.is_valid()) {
-      send_closure_later(G()->notification_manager(), &NotificationManager::before_get_chat_difference,
-                         d->notification_info->message_notification_group_.get_group_id());
-    }
-    if (d->notification_info->mention_notification_group_.is_valid()) {
-      send_closure_later(G()->notification_manager(), &NotificationManager::before_get_chat_difference,
-                         d->notification_info->mention_notification_group_.get_group_id());
-    }
-  }
-
-  int32 limit = td_->auth_manager_->is_bot() && !is_old ? MAX_BOT_CHANNEL_DIFFERENCE : MAX_CHANNEL_DIFFERENCE;
-  if (pts <= 0) {
-    pts = 1;
-    limit = MIN_CHANNEL_DIFFERENCE;
-  }
-
-  pending_get_channel_differences_.push(
-      td::make_unique<PendingGetChannelDifference>(dialog_id, pts, limit, force, std::move(input_channel), source));
-  process_pending_get_channel_differences();
-}
-
-void MessagesManager::process_pending_get_channel_differences() {
-  static constexpr int32 MAX_CONCURRENT_GET_CHANNEL_DIFFERENCES = 10;
-
-  if (pending_get_channel_differences_.empty() ||
-      get_channel_difference_count_ >= MAX_CONCURRENT_GET_CHANNEL_DIFFERENCES) {
-    return;
-  }
-
-  get_channel_difference_count_++;
-
-  auto query = std::move(pending_get_channel_differences_.front());
-  pending_get_channel_differences_.pop();
-
-  LOG(INFO) << "-----BEGIN GET CHANNEL DIFFERENCE----- for " << query->dialog_id_ << " with PTS " << query->pts_
-            << " and limit " << query->limit_ << " from " << query->source_;
-
-  td_->create_handler<GetChannelDifferenceQuery>()->send(query->dialog_id_, std::move(query->input_channel_),
-                                                         query->pts_, query->limit_, query->force_);
-}
-
-void MessagesManager::process_get_channel_difference_updates(
-    DialogId dialog_id, int32 new_pts, vector<tl_object_ptr<telegram_api::Message>> &&new_messages,
-    vector<tl_object_ptr<telegram_api::Update>> &&other_updates) {
-  LOG(INFO) << "In get channel difference for " << dialog_id << " receive " << new_messages.size() << " messages and "
-            << other_updates.size() << " other updates";
-  CHECK(!debug_channel_difference_dialog_.is_valid());
-  debug_channel_difference_dialog_ = dialog_id;
-
-  // identifiers of edited and deleted messages
-  FlatHashSet<MessageId, MessageIdHash> changed_message_ids;
-  for (auto &update_ptr : other_updates) {
-    bool is_good_update = true;
-    switch (update_ptr->get_id()) {
-      case telegram_api::updateMessageID::ID: {
-        // in channels.getDifference updateMessageID can't be received for scheduled messages
-        auto sent_message_update = move_tl_object_as<telegram_api::updateMessageID>(update_ptr);
-        on_update_message_id(sent_message_update->random_id_, MessageId(ServerMessageId(sent_message_update->id_)),
-                             "get_channel_difference");
-        update_ptr = nullptr;
-        break;
-      }
-      case telegram_api::updateDeleteChannelMessages::ID: {
-        auto *update = static_cast<const telegram_api::updateDeleteChannelMessages *>(update_ptr.get());
-        if (DialogId(ChannelId(update->channel_id_)) != dialog_id) {
-          is_good_update = false;
-        } else {
-          for (auto &message : update->messages_) {
-            changed_message_ids.insert(MessageId(ServerMessageId(message)));
-          }
-        }
-        break;
-      }
-      case telegram_api::updateEditChannelMessage::ID: {
-        auto *update = static_cast<const telegram_api::updateEditChannelMessage *>(update_ptr.get());
-        auto message_full_id = MessageFullId::get_message_full_id(update->message_, false);
-        if (message_full_id.get_dialog_id() != dialog_id) {
-          is_good_update = false;
-        } else {
-          changed_message_ids.insert(message_full_id.get_message_id());
-        }
-        break;
-      }
-      case telegram_api::updatePinnedChannelMessages::ID: {
-        auto *update = static_cast<const telegram_api::updatePinnedChannelMessages *>(update_ptr.get());
-        if (DialogId(ChannelId(update->channel_id_)) != dialog_id) {
-          is_good_update = false;
-        }
-        break;
-      }
-      default:
-        is_good_update = false;
-        break;
-    }
-    if (!is_good_update) {
-      LOG(ERROR) << "Receive wrong update in channelDifference of " << dialog_id << ": " << to_string(update_ptr);
-      update_ptr = nullptr;
-    }
-  }
-
-  auto is_edited_message = [](const tl_object_ptr<telegram_api::Message> &message) {
-    if (message->get_id() != telegram_api::message::ID) {
-      return false;
-    }
-    return static_cast<const telegram_api::message *>(message.get())->edit_date_ > 0;
-  };
-
-  for (auto &message : new_messages) {
-    if (is_edited_message(message)) {
-      auto message_id = MessageId::get_message_id(message, false);
-      if (message_id.is_valid()) {
-        changed_message_ids.insert(message_id);
-      }
-    }
-  }
-
-  // extract awaited sent messages, which were edited or deleted after that
-  auto postponed_updates_it = postponed_channel_updates_.find(dialog_id);
-  struct AwaitedMessage {
-    tl_object_ptr<telegram_api::Message> message;
-    Promise<Unit> promise;
-  };
-  std::map<MessageId, AwaitedMessage> awaited_messages;
-  if (postponed_updates_it != postponed_channel_updates_.end()) {
-    auto &updates = postponed_updates_it->second;
-    while (!updates.empty()) {
-      auto it = updates.begin();
-      auto update_pts = it->second.pts;
-      if (update_pts > new_pts) {
-        break;
-      }
-
-      auto update = std::move(it->second.update);
-      auto promise = std::move(it->second.promise);
-      updates.erase(it);
-
-      if (update->get_id() == telegram_api::updateNewChannelMessage::ID) {
-        auto update_new_channel_message = static_cast<telegram_api::updateNewChannelMessage *>(update.get());
-        auto message_id = MessageId::get_message_id(update_new_channel_message->message_, false);
-        MessageFullId message_full_id(dialog_id, message_id);
-        if (update_message_ids_.count(message_full_id) > 0 && changed_message_ids.count(message_id) > 0) {
-          changed_message_ids.erase(message_id);
-          AwaitedMessage awaited_message;
-          awaited_message.message = std::move(update_new_channel_message->message_);
-          awaited_message.promise = std::move(promise);
-          awaited_messages.emplace(message_id, std::move(awaited_message));
-          continue;
-        }
-      }
-
-      LOG(INFO) << "Skip to be applied from getChannelDifference " << to_string(update);
-      promise.set_value(Unit());
-    }
-    if (updates.empty()) {
-      postponed_channel_updates_.erase(postponed_updates_it);
-    }
-  }
-
-  // if last message is pretty old, we might have missed the update
-  bool need_repair_unread_count =
-      !new_messages.empty() && get_message_date(new_messages[0]) < G()->unix_time() - 2 * 86400;
-
-  auto it = awaited_messages.begin();
-  for (auto &message : new_messages) {
-    auto message_id = MessageId::get_message_id(message, false);
-    while (it != awaited_messages.end() && it->first < message_id) {
-      on_get_message(std::move(it->second.message), true, true, false, "postponed channel update");
-      it->second.promise.set_value(Unit());
-      ++it;
-    }
-    Promise<Unit> promise;
-    if (it != awaited_messages.end() && it->first == message_id) {
-      if (is_edited_message(message)) {
-        // the new message is edited, apply postponed one and move this to updateEditChannelMessage
-        other_updates.push_back(make_tl_object<telegram_api::updateEditChannelMessage>(std::move(message), new_pts, 0));
-        message = std::move(it->second.message);
-        promise = std::move(it->second.promise);
-      } else {
-        it->second.promise.set_value(Unit());
-      }
-      ++it;
-    }
-    on_get_message(std::move(message), true, true, false, "get channel difference");
-    promise.set_value(Unit());
-  }
-  while (it != awaited_messages.end()) {
-    on_get_message(std::move(it->second.message), true, true, false, "postponed channel update 2");
-    it->second.promise.set_value(Unit());
-    ++it;
-  }
-
-  for (auto &update : other_updates) {
-    if (update != nullptr) {
-      process_channel_update(std::move(update));
-    }
-  }
-  LOG_CHECK(!running_get_channel_difference(dialog_id)) << '"' << active_get_channel_differences_[dialog_id] << '"';
-
-  if (need_repair_unread_count) {
-    repair_channel_server_unread_count(get_dialog(dialog_id));
-  }
-
-  CHECK(debug_channel_difference_dialog_ == dialog_id);
-  debug_channel_difference_dialog_ = DialogId();
-}
-
-void MessagesManager::on_get_channel_dialog(DialogId dialog_id, MessageId last_message_id,
-                                            MessageId read_inbox_max_message_id, int32 server_unread_count,
-                                            int32 unread_mention_count, int32 unread_reaction_count,
-                                            MessageId read_outbox_max_message_id,
-                                            vector<tl_object_ptr<telegram_api::Message>> &&messages) {
-  FlatHashMap<MessageFullId, tl_object_ptr<telegram_api::Message>, MessageFullIdHash> message_full_id_to_message;
-  for (auto &message : messages) {
-    auto message_id = MessageId::get_message_id(message, false);
-    if (!message_id.is_valid()) {
-      continue;
-    }
-    auto message_dialog_id = DialogId::get_message_dialog_id(message);
-    if (!message_dialog_id.is_valid()) {
-      message_dialog_id = dialog_id;
-    }
-    auto message_full_id = MessageFullId(message_dialog_id, message_id);
-    message_full_id_to_message[message_full_id] = std::move(message);
-  }
-
-  MessageFullId last_message_full_id(dialog_id, last_message_id);
-  if (last_message_id.is_valid() && message_full_id_to_message.count(last_message_full_id) == 0) {
-    LOG(ERROR) << "Last " << last_message_id << " in " << dialog_id << " not found. Have:";
-    for (auto &message : message_full_id_to_message) {
-      LOG(ERROR) << to_string(message.second);
-    }
-    return;
-  }
-  CHECK(!last_message_id.is_scheduled());
-
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-
-  // There are many ways of handling a gap in a channel:
-  // 1) Delete all known messages in the chat, begin from scratch. It is easy to implement, but suddenly disappearing
-  //    messages looks awful for the user.
-  // 2) Save all messages loaded in the memory until application restart, but delete all messages from the database.
-  //    Messages left in the memory must be lazily updated using calls to getHistory. It looks much smoothly for the
-  //    user, he will need to redownload messages only after client restart. Unsynchronized messages left in the
-  //    memory shouldn't be saved to database, results of getHistory and getMessage must be used to update state of
-  //    deleted and edited messages left in the memory.
-  // 3) Save all messages loaded in the memory and stored in the database without saving that some messages form
-  //    continuous ranges. Messages in the database will be excluded from results of getChatHistory and
-  //    searchChatMessages after application restart and will be available only through getMessage.
-  //    Every message should still be checked using getHistory. It has more disadvantages over 2) than advantages.
-  // 4) Save all messages with saving all data about continuous message ranges. Messages from the database may be used
-  //    as results of getChatHistory and (if implemented continuous ranges support for searching shared media)
-  //    searchChatMessages. The messages should still be lazily checked using getHistory, but they are still available
-  //    offline. It is the best way for gaps support, but it is pretty hard to implement correctly.
-  // It should be also noted that some messages like outgoing live location messages shouldn't be deleted.
-
-  if (is_message_unload_enabled()) {
-    if (d->open_count == 0) {
-      unload_dialog(dialog_id, 0);
-    } else {
-      d->need_unload_on_close = true;
-    }
-  }
-
-  if (last_message_id > d->last_new_message_id && !td_->auth_manager_->is_bot()) {
-    // TODO properly support last_message_id <= d->last_new_message_id
-    set_dialog_first_database_message_id(d, MessageId(), "on_get_channel_dialog 6");
-    set_dialog_last_database_message_id(d, MessageId(), "on_get_channel_dialog 7");
-    d->have_full_history = false;
-    d->have_full_history_source = 0;
-    d->is_empty = false;
-  }
-  invalidate_message_indexes(d);
-  // d->history_generation++;
-
-  on_dialog_updated(dialog_id, "on_get_channel_dialog 10");
-
-  // TODO properly support last_message_id <= d->last_new_message_id
-  if (last_message_id > d->last_new_message_id &&
-      !td_->auth_manager_->is_bot()) {  // if last message is really a new message
-    if (!d->last_new_message_id.is_valid() && last_message_id <= d->max_added_message_id) {
-      auto prev_message_id = MessageId(ServerMessageId(last_message_id.get_server_message_id().get() - 1));
-      remove_dialog_newer_messages(d, prev_message_id, "on_get_channel_dialog 15");
-    }
-    d->last_new_message_id = MessageId();
-    set_dialog_last_message_id(d, MessageId(), "on_get_channel_dialog 20");
-    send_update_chat_last_message(d, "on_get_channel_dialog 30");
-    MessageFullId added_message_full_id;
-    if (last_message_id.is_valid()) {
-      added_message_full_id = on_get_message(std::move(message_full_id_to_message[last_message_full_id]), true, true,
-                                             false, "channel difference too long");
-    }
-    if (added_message_full_id.get_message_id().is_valid()) {
-      if (added_message_full_id.get_message_id() == d->last_new_message_id) {
-        CHECK(last_message_full_id == added_message_full_id);
-        if (!td_->auth_manager_->is_bot()) {
-          CHECK(d->last_message_id == d->last_new_message_id);
-        }
-      } else {
-        LOG(ERROR) << added_message_full_id << " doesn't became last new message, which is " << d->last_new_message_id;
-      }
-    } else if (last_message_id > d->last_new_message_id) {
-      set_dialog_last_new_message_id(d, last_message_id,
-                                     "on_get_channel_dialog 40");  // skip updates about some messages
-    }
-  }
-
-  if (d->last_read_inbox_message_id.is_valid() && !d->last_read_inbox_message_id.is_server() &&
-      read_inbox_max_message_id == d->last_read_inbox_message_id.get_prev_server_message_id()) {
-    read_inbox_max_message_id = d->last_read_inbox_message_id;
-  }
-  if (d->server_unread_count != server_unread_count || d->last_read_inbox_message_id != read_inbox_max_message_id) {
-    set_dialog_last_read_inbox_message_id(d, read_inbox_max_message_id, server_unread_count, d->local_unread_count,
-                                          false, "on_get_channel_dialog 50");
-  }
-  if (d->unread_mention_count != unread_mention_count && !td_->auth_manager_->is_bot()) {
-    set_dialog_unread_mention_count(d, unread_mention_count);
-    update_dialog_mention_notification_count(d);
-    send_update_chat_unread_mention_count(d);
-  }
-  if (d->unread_reaction_count != unread_reaction_count && !td_->auth_manager_->is_bot()) {
-    set_dialog_unread_reaction_count(d, unread_reaction_count);
-    // update_dialog_mention_notification_count(d);
-    send_update_chat_unread_reaction_count(d, "on_get_channel_dialog 60");
-  }
-
-  if (d->last_read_outbox_message_id != read_outbox_max_message_id) {
-    set_dialog_last_read_outbox_message_id(d, read_outbox_max_message_id);
-  }
-}
-
-void MessagesManager::retry_get_channel_difference_later(DialogId dialog_id) {
-  auto &delay = channel_get_difference_retry_timeouts_[dialog_id];
-  if (delay == 0) {
-    delay = 1;
-  }
-  schedule_get_channel_difference(dialog_id, 0, MessageId(), Random::fast(delay * 800, delay * 1200) * 1e-3,
-                                  "retry_get_channel_difference_later");
-  delay *= 2;
-  if (delay > 60) {
-    delay = Random::fast(60, 80);
-  }
-}
-
-void MessagesManager::on_get_channel_difference(DialogId dialog_id, int32 request_pts, int32 request_limit,
-                                                tl_object_ptr<telegram_api::updates_ChannelDifference> &&difference_ptr,
-                                                Status &&status) {
-  get_channel_difference_count_--;
-  CHECK(get_channel_difference_count_ >= 0);
-  process_pending_get_channel_differences();
-  LOG(INFO) << "----- END  GET CHANNEL DIFFERENCE----- for " << dialog_id;
-  auto it = active_get_channel_differences_.find(dialog_id);
-  CHECK(it != active_get_channel_differences_.end());
-  string source = std::move(it->second);
-  active_get_channel_differences_.erase(it);
-  auto d = get_dialog_force(dialog_id, "on_get_channel_difference");
-
-  if (difference_ptr == nullptr) {
-    CHECK(status.is_error());
-    bool have_access = td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read) &&
-                       td_->chat_manager_->have_channel(dialog_id.get_channel_id()) &&
-                       status.message() != "CHANNEL_INVALID";
-    if (have_access) {
-      if (d == nullptr) {
-        force_create_dialog(dialog_id, "on_get_channel_difference failed");
-        d = get_dialog(dialog_id);
-        if (d == nullptr) {
-          return after_get_channel_difference(dialog_id, false);
-        }
-      }
-      retry_get_channel_difference_later(dialog_id);
-    } else {
-      after_get_channel_difference(dialog_id, false);
-    }
-    return;
-  }
-  CHECK(status.is_ok());
-
-  LOG(INFO) << "Receive result of getChannelDifference for " << dialog_id << " with PTS = " << request_pts
-            << " and limit = " << request_limit << " from " << source << ": " << to_string(difference_ptr);
-
-  bool have_new_messages = false;
-  switch (difference_ptr->get_id()) {
-    case telegram_api::updates_channelDifferenceEmpty::ID:
-      if (d == nullptr) {
-        // no need to create the dialog
-        channel_get_difference_retry_timeouts_.erase(dialog_id);
-        after_get_channel_difference(dialog_id, true);
-        return;
-      }
-      break;
-    case telegram_api::updates_channelDifference::ID: {
-      auto difference = static_cast<telegram_api::updates_channelDifference *>(difference_ptr.get());
-      have_new_messages = !difference->new_messages_.empty();
-      td_->user_manager_->on_get_users(std::move(difference->users_), "updates.channelDifference");
-      td_->chat_manager_->on_get_chats(std::move(difference->chats_), "updates.channelDifference");
-      for (const auto &message : difference->new_messages_) {
-        if (is_invalid_poll_message(message.get())) {
-          LOG(ERROR) << "Receive invalid poll message in updates.channelDifference: " << oneline(to_string(message));
-          if (d != nullptr && channel_get_difference_retry_timeouts_[dialog_id] <= 2) {
-            return retry_get_channel_difference_later(dialog_id);
-          }
-        }
-      }
-      break;
-    }
-    case telegram_api::updates_channelDifferenceTooLong::ID: {
-      auto difference = static_cast<telegram_api::updates_channelDifferenceTooLong *>(difference_ptr.get());
-      have_new_messages = difference->dialog_->get_id() == telegram_api::dialog::ID && !difference->messages_.empty();
-      td_->user_manager_->on_get_users(std::move(difference->users_), "updates.channelDifferenceTooLong");
-      td_->chat_manager_->on_get_chats(std::move(difference->chats_), "updates.channelDifferenceTooLong");
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  channel_get_difference_retry_timeouts_.erase(dialog_id);
-
-  bool need_update_dialog_pos = false;
-  if (d == nullptr) {
-    d = add_dialog_for_new_message(dialog_id, have_new_messages, &need_update_dialog_pos, "on_get_channel_difference");
-  }
-
-  int32 cur_pts = d->pts <= 0 ? 1 : d->pts;
-  LOG_IF(ERROR, cur_pts != request_pts) << "Channel PTS has changed from " << request_pts << " to " << d->pts << " in "
-                                        << dialog_id << " during getChannelDifference from " << source;
-
-  bool is_final = true;
-  bool is_old = false;
-  int32 timeout = 0;
-  switch (difference_ptr->get_id()) {
-    case telegram_api::updates_channelDifferenceEmpty::ID: {
-      auto difference = move_tl_object_as<telegram_api::updates_channelDifferenceEmpty>(difference_ptr);
-      is_final = difference->final_;
-      timeout = difference->timeout_;
-      LOG_IF(ERROR, !is_final) << "Receive channelDifferenceEmpty as result of getChannelDifference from " << source
-                               << " with PTS = " << request_pts << " and limit = " << request_limit << " in "
-                               << dialog_id << ", but it is not final";
-
-      // bots can receive channelDifferenceEmpty with PTS bigger than known PTS
-      // also, this can happen for deleted channels
-      if (request_pts != difference->pts_ && !td_->auth_manager_->is_bot() &&
-          td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-        LOG(ERROR) << "Receive channelDifferenceEmpty as result of getChannelDifference from " << source
-                   << " with PTS = " << request_pts << " and limit = " << request_limit << " in " << dialog_id
-                   << ", but PTS has changed to " << difference->pts_;
-      }
-      set_channel_pts(d, difference->pts_, "channel difference empty");
-      break;
-    }
-    case telegram_api::updates_channelDifference::ID: {
-      auto difference = move_tl_object_as<telegram_api::updates_channelDifference>(difference_ptr);
-      is_final = difference->final_;
-      timeout = difference->timeout_;
-
-      auto new_pts = difference->pts_;
-      if (request_pts >= new_pts && request_pts > 1 && (request_pts > new_pts || !td_->auth_manager_->is_bot())) {
-        LOG(ERROR) << "Receive channelDifference as result of getChannelDifference from " << source
-                   << " with PTS = " << request_pts << " and limit = " << request_limit << " in " << dialog_id
-                   << ", but PTS has changed from " << d->pts << " to " << new_pts
-                   << ". Difference: " << oneline(to_string(difference));
-        new_pts = request_pts + 1;
-      }
-
-      if (difference->new_messages_.size() > 1) {
-        // check that new messages are received in increasing message_id order
-        MessageId cur_message_id;
-        for (const auto &message : difference->new_messages_) {
-          auto message_id = MessageId::get_message_id(message, false);
-          if (message_id <= cur_message_id) {
-            LOG(ERROR) << "Receive " << cur_message_id << " after " << message_id << " in channelDifference of "
-                       << dialog_id << " from " << source << " with PTS " << request_pts << " and limit "
-                       << request_limit << ": " << to_string(difference);
-            after_get_channel_difference(dialog_id, false);
-            return;
-          }
-          cur_message_id = message_id;
-        }
-      }
-      if (!is_final && !difference->new_messages_.empty() && td_->auth_manager_->is_bot()) {
-        auto date = get_message_date(difference->new_messages_.back());
-        if (0 < date && date < G()->unix_time() - 2 * 86400) {
-          is_old = true;
-        }
-      }
-
-      process_get_channel_difference_updates(dialog_id, new_pts, std::move(difference->new_messages_),
-                                             std::move(difference->other_updates_));
-
-      set_channel_pts(d, new_pts, "channel difference");
-      break;
-    }
-    case telegram_api::updates_channelDifferenceTooLong::ID: {
-      auto difference = move_tl_object_as<telegram_api::updates_channelDifferenceTooLong>(difference_ptr);
-
-      telegram_api::dialog *dialog = nullptr;
-      switch (difference->dialog_->get_id()) {
-        case telegram_api::dialog::ID:
-          dialog = static_cast<telegram_api::dialog *>(difference->dialog_.get());
-          break;
-        case telegram_api::dialogFolder::ID:
-          return after_get_channel_difference(dialog_id, false);
-        default:
-          UNREACHABLE();
-          return;
-      }
-
-      CHECK(dialog != nullptr);
-      if (dialog->pts_ <= 0) {
-        LOG(ERROR) << "Receive " << dialog_id << " without PTS";
-        return after_get_channel_difference(dialog_id, false);
-      }
-
-      is_final = difference->final_;
-      timeout = difference->timeout_;
-
-      auto new_pts = dialog->pts_;
-      if (request_pts > new_pts - request_limit) {
-        LOG(ERROR) << "Receive channelDifferenceTooLong as result of getChannelDifference from " << source
-                   << " with PTS = " << request_pts << " and limit = " << request_limit << " in " << dialog_id
-                   << ", but PTS has changed from " << d->pts << " to " << new_pts
-                   << ". Difference: " << oneline(to_string(difference));
-        if (request_pts >= new_pts) {
-          new_pts = request_pts + 1;
-        }
-      }
-
-      set_dialog_folder_id(d, FolderId(dialog->folder_id_));
-      set_dialog_view_as_messages(d, dialog->view_forum_as_messages_, "updates.channelDifferenceTooLong");
-
-      on_update_dialog_notify_settings(dialog_id, std::move(dialog->notify_settings_),
-                                       "updates.channelDifferenceTooLong");
-
-      bool is_marked_as_unread = dialog->unread_mark_;
-      if (is_marked_as_unread != d->is_marked_as_unread) {
-        set_dialog_is_marked_as_unread(d, is_marked_as_unread);
-      }
-
-      update_dialog_draft_message(d, get_draft_message(td_, std::move(dialog->draft_)), true, false);
-
-      on_get_channel_dialog(dialog_id, MessageId(ServerMessageId(dialog->top_message_)),
-                            MessageId(ServerMessageId(dialog->read_inbox_max_id_)), dialog->unread_count_,
-                            dialog->unread_mentions_count_, dialog->unread_reactions_count_,
-                            MessageId(ServerMessageId(dialog->read_outbox_max_id_)), std::move(difference->messages_));
-      update_dialog_pos(d, "updates.channelDifferenceTooLong");
-
-      if (!td_->auth_manager_->is_bot()) {
-        // set is_pinned only after updating chat position to ensure that order is initialized
-        bool is_pinned = dialog->pinned_;
-        bool was_pinned = is_dialog_pinned(DialogListId(d->folder_id), dialog_id);
-        if (is_pinned != was_pinned) {
-          set_dialog_is_pinned(DialogListId(d->folder_id), d, is_pinned);
-        }
-      }
-
-      set_channel_pts(d, new_pts, "channel difference too long");
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  if (need_update_dialog_pos) {
-    update_dialog_pos(d, "on_get_channel_difference");
-  }
-
-  if (!is_final) {
-    LOG_IF(ERROR, timeout > 0) << "Have timeout in non-final ChannelDifference in " << dialog_id;
-    get_channel_difference(dialog_id, d->pts, 0, MessageId(), true, "on_get_channel_difference", is_old);
-    return;
-  }
-
-  LOG_IF(ERROR, timeout == 0) << "Have no timeout in final ChannelDifference in " << dialog_id;
-  if (timeout > 0 && d->open_count > 0) {
-    channel_get_difference_timeout_.add_timeout_in(dialog_id.get(), timeout);
-  }
-  after_get_channel_difference(dialog_id, true);
-}
-
-void MessagesManager::after_get_channel_difference(DialogId dialog_id, bool success) {
-  LOG(INFO) << "After " << (success ? "" : "un") << "successful get channel difference in " << dialog_id;
-  LOG_CHECK(!running_get_channel_difference(dialog_id)) << '"' << active_get_channel_differences_[dialog_id] << '"';
-
-  auto log_event_it = get_channel_difference_to_log_event_id_.find(dialog_id);
-  if (log_event_it != get_channel_difference_to_log_event_id_.end()) {
-    if (!G()->close_flag()) {
-      binlog_erase(G()->td_db()->get_binlog(), log_event_it->second);
-    }
-    get_channel_difference_to_log_event_id_.erase(log_event_it);
-  }
-
-  auto d = get_dialog(dialog_id);
-  bool have_access = td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read) &&
-                     td_->chat_manager_->have_channel(dialog_id.get_channel_id());
-  auto pts = d != nullptr ? d->pts : load_channel_pts(dialog_id);
-  auto postponed_updates_it = postponed_channel_updates_.find(dialog_id);
-  if (postponed_updates_it != postponed_channel_updates_.end()) {
-    auto &updates = postponed_updates_it->second;
-    LOG(INFO) << "Begin to apply " << updates.size() << " postponed channel updates";
-    while (!updates.empty()) {
-      auto it = updates.begin();
-      auto update = std::move(it->second.update);
-      auto update_pts = it->second.pts;
-      auto update_pts_count = it->second.pts_count;
-      auto promise = std::move(it->second.promise);
-      updates.erase(it);
-
-      auto old_size = updates.size();
-      auto update_id = update->get_id();
-      if (have_access) {
-        add_pending_channel_update(dialog_id, std::move(update), update_pts, update_pts_count, std::move(promise),
-                                   "apply postponed channel updates", true);
-      } else {
-        promise.set_value(Unit());
-      }
-      if (updates.size() != old_size || running_get_channel_difference(dialog_id)) {
-        if (success && update_pts - 10000 < pts && update_pts_count == 1) {
-          // if getChannelDifference was successful and update PTS is near channel PTS,
-          // we hope that the update eventually can be applied
-          LOG(INFO) << "Can't apply postponed channel updates";
-        } else {
-          // otherwise protect from getChannelDifference repeating calls by dropping postponed updates
-          LOG(WARNING) << "Failed to apply postponed updates of type " << update_id << " in " << dialog_id
-                       << " with PTS " << pts << ", update PTS is " << update_pts << ", update PTS count is "
-                       << update_pts_count;
-          vector<Promise<Unit>> update_promises;
-          for (auto &postponed_update : updates) {
-            update_promises.push_back(std::move(postponed_update.second.promise));
-          }
-          updates.clear();
-          for (auto &update_promise : update_promises) {
-            update_promise.set_value(Unit());
-          }
-        }
-        break;
-      }
-    }
-    if (updates.empty()) {
-      postponed_channel_updates_.erase(postponed_updates_it);
-    }
-    LOG(INFO) << "Finish to apply postponed channel updates";
-  }
-
-  if (d != nullptr) {
-    d->is_channel_difference_finished = true;
-
-    if (d->notification_info != nullptr) {
-      if (d->notification_info->message_notification_group_.is_valid()) {
-        send_closure_later(G()->notification_manager(), &NotificationManager::after_get_chat_difference,
-                           d->notification_info->message_notification_group_.get_group_id());
-      }
-      if (d->notification_info->mention_notification_group_.is_valid()) {
-        send_closure_later(G()->notification_manager(), &NotificationManager::after_get_chat_difference,
-                           d->notification_info->mention_notification_group_.get_group_id());
-      }
-    }
-  } else {
-    is_channel_difference_finished_.insert(dialog_id);
-  }
-
-  if (postponed_chat_read_inbox_updates_.erase(dialog_id) > 0) {
-    send_update_chat_read_inbox(d, true, "after_get_channel_difference");
-  }
-
-  auto promise_it = run_after_get_channel_difference_.find(dialog_id);
-  if (promise_it != run_after_get_channel_difference_.end()) {
-    auto promises = std::move(promise_it->second);
-    run_after_get_channel_difference_.erase(promise_it);
-
-    set_promises(promises);
-  }
-
-  auto on_get_dialogs_it = pending_channel_on_get_dialogs_.find(dialog_id);
-  if (on_get_dialogs_it != pending_channel_on_get_dialogs_.end()) {
-    LOG(INFO) << "Apply postponed results of channel getDialogs for " << dialog_id;
-    vector<PendingOnGetDialogs> queries = std::move(on_get_dialogs_it->second);
-    pending_channel_on_get_dialogs_.erase(on_get_dialogs_it);
-
-    for (auto &query : queries) {
-      on_get_dialogs(query.folder_id, std::move(query.dialogs), query.total_count, std::move(query.messages),
-                     std::move(query.promise));
-    }
-  }
-
-  if (d != nullptr && !td_->auth_manager_->is_bot() && have_access && !d->last_message_id.is_valid() && !d->is_empty &&
-      (d->order != DEFAULT_ORDER || is_dialog_sponsored(d))) {
-    load_last_dialog_message(d, "after_get_channel_difference");
-  }
-
-  auto expected_channel_pts_it = expected_channel_pts_.find(dialog_id);
-  if (expected_channel_pts_it != expected_channel_pts_.end()) {
-    if (success && d != nullptr && expected_channel_pts_it->second > pts) {
-      schedule_get_channel_difference(dialog_id, 0, MessageId(), 1.0, "after_get_channel_difference");
-    }
-    expected_channel_pts_.erase(expected_channel_pts_it);
-  }
-
-  auto expected_channel_max_message_id_it = expected_channel_max_message_id_.find(dialog_id);
-  if (expected_channel_max_message_id_it != expected_channel_max_message_id_.end()) {
-    if (success && d != nullptr && expected_channel_max_message_id_it->second > d->last_new_message_id) {
-      schedule_get_channel_difference(dialog_id, 0, MessageId(), 1.0, "after_get_channel_difference 2");
-    }
-    expected_channel_max_message_id_.erase(expected_channel_max_message_id_it);
-  }
-}
-
-void MessagesManager::reget_message_from_server_if_needed(DialogId dialog_id, const Message *m) {
-  if (!m->message_id.is_any_server() || dialog_id.get_type() == DialogType::SecretChat) {
-    return;
-  }
-
-  if (need_reget_message_content(m->content.get()) || (m->legacy_layer != 0 && m->legacy_layer < MTPROTO_LAYER) ||
-      m->reply_info.need_reget(td_) || m->replied_message_info.need_reget()) {
-    MessageFullId message_full_id{dialog_id, m->message_id};
-    LOG(INFO) << "Reget from server " << message_full_id;
-    get_message_from_server(message_full_id, Auto(), "reget_message_from_server_if_needed");
-  }
-}
-
-void MessagesManager::speculatively_update_active_group_call_id(Dialog *d, const Message *m) {
-  CHECK(m != nullptr);
-  if (!m->message_id.is_any_server() || m->content->get_type() != MessageContentType::GroupCall) {
-    return;
-  }
-
-  InputGroupCallId input_group_call_id;
-  bool is_ended;
-  std::tie(input_group_call_id, is_ended) = get_message_content_group_call_info(m->content.get());
-  d->has_expected_active_group_call_id = true;
-  if (is_ended) {
-    d->expected_active_group_call_id = InputGroupCallId();
-    if (d->active_group_call_id == input_group_call_id) {
-      on_update_dialog_group_call_id(d->dialog_id, InputGroupCallId());
-    }
-  } else {
-    d->expected_active_group_call_id = input_group_call_id;
-    if (d->active_group_call_id != input_group_call_id && !td_->auth_manager_->is_bot()) {
-      repair_dialog_active_group_call_id(d->dialog_id);
-    }
-  }
-}
-
-void MessagesManager::speculatively_update_channel_participants(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-  if (!m->message_id.is_any_server() || dialog_id.get_type() != DialogType::Channel || !m->sender_user_id.is_valid()) {
-    return;
-  }
-
-  auto channel_id = dialog_id.get_channel_id();
-  UserId my_user_id(td_->user_manager_->get_my_id());
-  bool by_me = m->sender_user_id == my_user_id;
-  switch (m->content->get_type()) {
-    case MessageContentType::ChatAddUsers:
-      send_closure_later(G()->chat_manager(), &ChatManager::speculative_add_channel_participants, channel_id,
-                         get_message_content_added_user_ids(m->content.get()), m->sender_user_id, m->date, by_me);
-      break;
-    case MessageContentType::ChatJoinedByLink:
-      send_closure_later(G()->chat_manager(), &ChatManager::speculative_add_channel_participants, channel_id,
-                         vector<UserId>{m->sender_user_id}, m->sender_user_id, m->date, by_me);
-      break;
-    case MessageContentType::ChatDeleteUser:
-      send_closure_later(G()->chat_manager(), &ChatManager::speculative_delete_channel_participant, channel_id,
-                         get_message_content_deleted_user_id(m->content.get()), by_me);
-      break;
-    default:
-      break;
-  }
-}
-
-void MessagesManager::update_sent_message_contents(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || (!m->is_outgoing && dialog_id != td_->dialog_manager_->get_my_dialog_id()) ||
-      dialog_id.get_type() == DialogType::SecretChat || m->message_id.is_local() || m->forward_info != nullptr ||
-      m->had_forward_info) {
-    return;
-  }
-
-  on_sent_message_content(td_, m->content.get());
-}
-
-void MessagesManager::update_used_hashtags(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || (!m->is_outgoing && dialog_id != td_->dialog_manager_->get_my_dialog_id()) ||
-      m->via_bot_user_id.is_valid() || m->via_business_bot_user_id.is_valid() || m->hide_via_bot ||
-      m->forward_info != nullptr || m->had_forward_info) {
-    return;
-  }
-
-  ::td::update_used_hashtags(td_, m->content.get());
-}
-
-void MessagesManager::update_top_dialogs(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-  auto dialog_type = dialog_id.get_type();
-  if (td_->auth_manager_->is_bot() || (!m->is_outgoing && dialog_id != td_->dialog_manager_->get_my_dialog_id()) ||
-      dialog_type == DialogType::SecretChat || !m->message_id.is_any_server() ||
-      m->via_business_bot_user_id.is_valid()) {
-    return;
-  }
-
-  bool is_forward = m->forward_info != nullptr || m->had_forward_info;
-  if (m->via_bot_user_id.is_valid() && !is_forward) {
-    // forwarded game messages can't be distinguished from sent via bot game messages, so increase rating anyway
-    on_dialog_used(TopDialogCategory::BotInline, DialogId(m->via_bot_user_id), m->date);
-  }
-
-  if (is_forward) {
-    auto &last_forward_date = last_outgoing_forwarded_message_date_[dialog_id];
-    if (last_forward_date < m->date) {
-      TopDialogCategory category =
-          dialog_type == DialogType::User ? TopDialogCategory::ForwardUsers : TopDialogCategory::ForwardChats;
-      on_dialog_used(category, dialog_id, m->date);
-      last_forward_date = m->date;
-    }
-  }
-
-  TopDialogCategory category = TopDialogCategory::Size;
-  switch (dialog_type) {
-    case DialogType::User: {
-      if (td_->user_manager_->is_user_bot(dialog_id.get_user_id())) {
-        category = TopDialogCategory::BotPM;
-      } else {
-        category = TopDialogCategory::Correspondent;
-      }
-      break;
-    }
-    case DialogType::Chat:
-      category = TopDialogCategory::Group;
-      break;
-    case DialogType::Channel:
-      switch (td_->chat_manager_->get_channel_type(dialog_id.get_channel_id())) {
-        case ChannelType::Broadcast:
-          category = TopDialogCategory::Channel;
-          break;
-        case ChannelType::Megagroup:
-          category = TopDialogCategory::Group;
-          break;
-        case ChannelType::Unknown:
-          break;
-        default:
-          UNREACHABLE();
-          break;
-      }
-      break;
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-  }
-  if (category != TopDialogCategory::Size) {
-    on_dialog_used(category, dialog_id, m->date);
-  }
-}
-
-void MessagesManager::update_forward_count(DialogId dialog_id, const Message *m) {
-  if (td_->auth_manager_->is_bot() || m->forward_info == nullptr) {
-    return;
-  }
-  auto origin_message_full_id = m->forward_info->get_origin_message_full_id();
-  if (!origin_message_full_id.get_message_id().is_valid()) {
-    return;
-  }
-  if (is_discussion_message(dialog_id, m) && origin_message_full_id == m->forward_info->get_last_message_full_id()) {
-    return;
-  }
-  update_forward_count(origin_message_full_id, m->date);
-}
-
-void MessagesManager::update_forward_count(MessageFullId message_full_id, int32 update_date) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto dialog_id = message_full_id.get_dialog_id();
-  Dialog *d = get_dialog(dialog_id);
-  CHECK(d != nullptr);
-  Message *m = get_message_force(d, message_full_id.get_message_id(), "update_forward_count");
-  if (m != nullptr && !m->message_id.is_scheduled() && m->message_id.is_server() && m->view_count > 0 &&
-      m->interaction_info_update_date < update_date) {
-    if (m->forward_count == 0) {
-      m->forward_count++;
-      send_update_message_interaction_info(dialog_id, m);
-      on_message_changed(d, m, true, "update_forward_count");
-    }
-    if (pending_message_views_[dialog_id].message_ids_.insert(m->message_id).second) {
-      pending_message_views_timeout_.add_timeout_in(dialog_id.get(), 0.0);
-    }
-  }
-}
-
-void MessagesManager::update_has_outgoing_messages(DialogId dialog_id, const Message *m) {
-  CHECK(m != nullptr);
-  if (td_->auth_manager_->is_bot() || (!m->is_outgoing && dialog_id != td_->dialog_manager_->get_my_dialog_id())) {
-    return;
-  }
-
-  Dialog *d = nullptr;
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      d = get_dialog(dialog_id);
-      break;
-    case DialogType::Chat:
-    case DialogType::Channel:
-      break;
-    case DialogType::SecretChat: {
-      auto user_id = td_->user_manager_->get_secret_chat_user_id(dialog_id.get_secret_chat_id());
-      if (user_id.is_valid()) {
-        d = get_dialog_force(DialogId(user_id), "update_has_outgoing_messages");
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  if (d == nullptr || d->has_outgoing_messages) {
-    return;
-  }
-
-  d->has_outgoing_messages = true;
-  on_dialog_updated(dialog_id, "update_has_outgoing_messages");
-
-  if (d->action_bar != nullptr && d->action_bar->on_outgoing_message()) {
-    send_update_chat_action_bar(d);
-  }
-}
-
-void MessagesManager::set_message_reply(const Dialog *d, Message *m, MessageInputReplyTo input_reply_to,
-                                        bool is_message_in_dialog) {
-  LOG(INFO) << "Update replied message of " << MessageFullId{d->dialog_id, m->message_id} << " from "
-            << m->replied_message_info << " to " << input_reply_to;
-  if (is_message_in_dialog) {
-    unregister_message_reply(d->dialog_id, m);
-  }
-  m->replied_message_info = RepliedMessageInfo(td_, input_reply_to);
-  m->reply_to_story_full_id = StoryFullId();
-  m->reply_to_random_id = get_message_reply_to_random_id(d, m);
-  if (!m->message_id.is_any_server()) {
-    m->input_reply_to = std::move(input_reply_to);
-  }
-  if (is_message_in_dialog) {
-    register_message_reply(d->dialog_id, m);
-  }
-  update_message_max_reply_media_timestamp(d, m, is_message_in_dialog);
-}
-
-void MessagesManager::update_message_reply_to_message_id(const Dialog *d, Message *m, MessageId reply_to_message_id,
-                                                         bool is_message_in_dialog) {
-  LOG(INFO) << "Update identifier of replied message of " << MessageFullId{d->dialog_id, m->message_id} << " from "
-            << m->replied_message_info << " to " << reply_to_message_id;
-  if (is_message_in_dialog) {
-    unregister_message_reply(d->dialog_id, m);
-  }
-  m->replied_message_info.set_message_id(reply_to_message_id);
-  if (!m->message_id.is_any_server()) {
-    m->input_reply_to.set_message_id(reply_to_message_id);
-  }
-  if (is_message_in_dialog) {
-    register_message_reply(d->dialog_id, m);
-  }
-}
-
-void MessagesManager::restore_message_reply_to_message_id(Dialog *d, Message *m) {
-  const auto *input_reply_to = get_message_input_reply_to(m);
-  CHECK(input_reply_to != nullptr);
-  if (input_reply_to->is_empty()) {
-    return;
-  }
-  auto replied_message_full_id = input_reply_to->get_reply_message_full_id(d->dialog_id);
-  auto replied_message_id = replied_message_full_id.get_message_id();
-  if (replied_message_id == MessageId() || !replied_message_id.is_yet_unsent()) {
-    return;
-  }
-  CHECK(replied_message_full_id.get_dialog_id() == d->dialog_id);
-  LOG_CHECK(m->replied_message_info.get_reply_message_full_id(d->dialog_id, true) == replied_message_full_id)
-      << replied_message_full_id << ' ' << m->replied_message_info << ' ' << *input_reply_to;
-
-  auto message_id = get_message_id_by_random_id(d, m->reply_to_random_id, "restore_message_reply_to_message_id");
-  if (message_id.is_valid() || message_id.is_valid_scheduled()) {
-    update_message_reply_to_message_id(d, m, message_id, false);
-  } else {
-    set_message_reply(d, m, MessageInputReplyTo{m->top_thread_message_id, DialogId(), MessageQuote()}, false);
-  }
-}
-
-MessagesManager::Message *MessagesManager::continue_send_message(DialogId dialog_id, unique_ptr<Message> &&message,
-                                                                 bool *need_update_dialog_pos, uint64 log_event_id) {
-  CHECK(log_event_id != 0);
-  CHECK(message != nullptr);
-  CHECK(message->content != nullptr);
-
-  Dialog *d = get_dialog_force(dialog_id, "continue_send_message");
-  if (d == nullptr) {
-    LOG(ERROR) << "Can't find " << dialog_id << " to continue send a message";
-    binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    return nullptr;
-  }
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-    binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    return nullptr;
-  }
-
-  LOG(INFO) << "Continue to send " << message->message_id << " to " << dialog_id << " initially sent at "
-            << message->send_date << " from binlog";
-
-  d->was_opened = true;
-
-  auto now = G()->unix_time();
-  if (message->message_id.is_scheduled()) {
-    message->message_id = get_next_yet_unsent_scheduled_message_id(d, message->date);
-  } else {
-    message->message_id = get_next_yet_unsent_message_id(d);
-    message->date = now;
-  }
-
-  restore_message_reply_to_message_id(d, message.get());
-
-  bool need_update = false;
-  auto result_message = add_message_to_dialog(d, std::move(message), false, true, &need_update, need_update_dialog_pos,
-                                              "continue_send_message");
-  CHECK(result_message != nullptr);
-
-  if (result_message->message_id.is_scheduled()) {
-    send_update_chat_has_scheduled_messages(d, false);
-  }
-
-  auto can_send_status = can_send_message(dialog_id);
-  if (can_send_status.is_ok() && result_message->send_date < now - MAX_RESEND_DELAY &&
-      dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-    can_send_status = Status::Error(400, "Message is too old to be re-sent automatically");
-  }
-  if (can_send_status.is_error()) {
-    LOG(INFO) << "Can't continue to send a message to " << dialog_id << ": " << can_send_status;
-
-    send_update_new_message(d, result_message);
-    if (*need_update_dialog_pos) {
-      send_update_chat_last_message(d, "continue_send_message");
-    }
-
-    fail_send_message({dialog_id, result_message->message_id}, std::move(can_send_status));
-    return nullptr;
-  }
-
-  return result_message;
-}
-
-void MessagesManager::on_binlog_events(vector<BinlogEvent> &&events) {
-  if (G()->close_flag()) {
-    return;
-  }
-  bool have_old_message_database = G()->use_message_database() && !G()->td_db()->was_dialog_db_created();
-  for (auto &event : events) {
-    CHECK(event.id_ != 0);
-    switch (event.type_) {
-      case LogEvent::HandlerType::SendMessage: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        SendMessageLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id;
-        auto message = std::move(log_event.message_out);
-        message->send_message_log_event_id = event.id_;
-
-        if (message->content->get_type() == MessageContentType::Unsupported) {
-          LOG(ERROR) << "Message content is invalid: " << format::as_hex_dump<4>(event.get_data());
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        Dependencies dependencies;
-        dependencies.add_dialog_dependencies(dialog_id);
-        add_message_dependencies(dependencies, message.get());
-        dependencies.resolve_force(td_, "SendMessageLogEvent");
-
-        message->content = dup_message_content(td_, dialog_id, message->content.get(), MessageContentDupType::Send,
-                                               MessageCopyOptions());
-
-        bool need_update_dialog_pos = false;
-        auto result_message = continue_send_message(dialog_id, std::move(message), &need_update_dialog_pos, event.id_);
-        if (result_message != nullptr) {
-          // uses send_closure_later internally
-          do_send_message(dialog_id, result_message);
-          Dialog *d = get_dialog(dialog_id);
-          send_update_new_message(d, result_message);
-          if (need_update_dialog_pos) {
-            send_update_chat_last_message(d, "SendMessageLogEvent");
-          }
-        }
-
-        break;
-      }
-      case LogEvent::HandlerType::SendBotStartMessage: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        SendBotStartMessageLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id;
-        auto message = std::move(log_event.message_out);
-        message->send_message_log_event_id = event.id_;
-
-        CHECK(message->content->get_type() == MessageContentType::Text);
-
-        auto bot_user_id = log_event.bot_user_id;
-        Dependencies dependencies;
-        dependencies.add(bot_user_id);
-        dependencies.add_dialog_and_dependencies(dialog_id);
-        add_message_dependencies(dependencies, message.get());
-        if (!dependencies.resolve_force(td_, "SendBotStartMessageLogEvent")) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        bool need_update_dialog_pos = false;
-        auto result_message = continue_send_message(dialog_id, std::move(message), &need_update_dialog_pos, event.id_);
-        if (result_message != nullptr) {
-          send_closure_later(actor_id(this), &MessagesManager::do_send_bot_start_message, bot_user_id, dialog_id,
-                             result_message->message_id, log_event.parameter);
-          Dialog *d = get_dialog(dialog_id);
-          send_update_new_message(d, result_message);
-          if (need_update_dialog_pos) {
-            send_update_chat_last_message(d, "SendBotStartMessageLogEvent");
-          }
-        }
-        break;
-      }
-      case LogEvent::HandlerType::SendInlineQueryResultMessage: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        SendInlineQueryResultMessageLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id;
-        auto message = std::move(log_event.message_out);
-        message->send_message_log_event_id = event.id_;
-
-        if (message->content->get_type() == MessageContentType::Unsupported) {
-          LOG(ERROR) << "Message content is invalid: " << format::as_hex_dump<4>(event.get_data());
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        Dependencies dependencies;
-        dependencies.add_dialog_dependencies(dialog_id);
-        add_message_dependencies(dependencies, message.get());
-        dependencies.resolve_force(td_, "SendInlineQueryResultMessageLogEvent");
-
-        message->content = dup_message_content(td_, dialog_id, message->content.get(),
-                                               MessageContentDupType::SendViaBot, MessageCopyOptions());
-
-        bool need_update_dialog_pos = false;
-        auto result_message = continue_send_message(dialog_id, std::move(message), &need_update_dialog_pos, event.id_);
-        if (result_message != nullptr) {
-          send_closure_later(actor_id(this), &MessagesManager::do_send_inline_query_result_message, dialog_id,
-                             result_message->message_id, log_event.query_id, log_event.result_id);
-          Dialog *d = get_dialog(dialog_id);
-          send_update_new_message(d, result_message);
-          if (need_update_dialog_pos) {
-            send_update_chat_last_message(d, "SendInlineQueryResultMessageLogEvent");
-          }
-        }
-        break;
-      }
-      case LogEvent::HandlerType::SendScreenshotTakenNotificationMessage: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        SendScreenshotTakenNotificationMessageLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id;
-        auto message = std::move(log_event.message_out);
-        message->send_message_log_event_id = 0;  // to not allow event deletion by message deletion
-
-        CHECK(message->content->get_type() == MessageContentType::ScreenshotTaken);
-
-        Dependencies dependencies;
-        dependencies.add_dialog_dependencies(dialog_id);
-        add_message_dependencies(dependencies, message.get());
-        dependencies.resolve_force(td_, "SendScreenshotTakenNotificationMessageLogEvent");
-
-        bool need_update_dialog_pos = false;
-        auto result_message = continue_send_message(dialog_id, std::move(message), &need_update_dialog_pos, event.id_);
-        if (result_message != nullptr) {
-          // order with other messages isn't kept
-          do_send_screenshot_taken_notification_message(dialog_id, result_message, event.id_);
-          Dialog *d = get_dialog(dialog_id);
-          send_update_new_message(d, result_message);
-          if (need_update_dialog_pos) {
-            send_update_chat_last_message(d, "SendScreenshotTakenNotificationMessageLogEvent");
-          }
-        }
-        break;
-      }
-      case LogEvent::HandlerType::ForwardMessages: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        ForwardMessagesLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto to_dialog_id = log_event.to_dialog_id;
-        auto from_dialog_id = log_event.from_dialog_id;
-        auto messages = std::move(log_event.messages_out);
-
-        Dependencies dependencies;
-        dependencies.add_dialog_and_dependencies(to_dialog_id);
-        dependencies.add_dialog_and_dependencies(from_dialog_id);
-        for (auto &message : messages) {
-          add_message_dependencies(dependencies, message.get());
-        }
-        if (!dependencies.resolve_force(td_, "ForwardMessagesLogEvent")) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        Dialog *to_dialog = get_dialog(to_dialog_id);
-        CHECK(to_dialog != nullptr);
-        to_dialog->was_opened = true;
-
-        auto now = G()->unix_time();
-        if (!td_->dialog_manager_->have_input_peer(from_dialog_id, false, AccessRights::Read) ||
-            can_send_message(to_dialog_id).is_error() || messages.empty() ||
-            (messages[0]->send_date < now - MAX_RESEND_DELAY &&
-             to_dialog_id != td_->dialog_manager_->get_my_dialog_id())) {
-          LOG(WARNING) << "Can't continue forwarding " << messages.size() << " message(s) to " << to_dialog_id;
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        LOG(INFO) << "Continue to forward " << messages.size() << " message(s) to " << to_dialog_id << " from binlog";
-
-        bool need_update = false;
-        bool need_update_dialog_pos = false;
-        vector<Message *> forwarded_messages;
-        for (auto &message : messages) {
-          if (message->message_id.is_scheduled()) {
-            message->message_id = get_next_yet_unsent_scheduled_message_id(to_dialog, message->date);
-          } else {
-            message->message_id = get_next_yet_unsent_message_id(to_dialog);
-            message->date = now;
-          }
-          message->content = dup_message_content(td_, to_dialog_id, message->content.get(),
-                                                 MessageContentDupType::Forward, MessageCopyOptions());
-          CHECK(message->content != nullptr);
-
-          restore_message_reply_to_message_id(to_dialog, message.get());
-
-          forwarded_messages.push_back(add_message_to_dialog(to_dialog, std::move(message), false, true, &need_update,
-                                                             &need_update_dialog_pos, "forward message again"));
-          send_update_new_message(to_dialog, forwarded_messages.back());
-        }
-
-        send_update_chat_has_scheduled_messages(to_dialog, false);
-
-        if (need_update_dialog_pos) {
-          send_update_chat_last_message(to_dialog, "on_reforward_message");
-        }
-
-        do_forward_messages(to_dialog_id, from_dialog_id, forwarded_messages, log_event.message_ids,
-                            log_event.drop_author, log_event.drop_media_captions, event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::SendQuickReplyShortcutMessages: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        SendQuickReplyShortcutMessagesLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id;
-        auto messages = std::move(log_event.messages_out);
-
-        Dependencies dependencies;
-        dependencies.add_dialog_and_dependencies(dialog_id);
-        for (auto &message : messages) {
-          add_message_dependencies(dependencies, message.get());
-        }
-        if (!dependencies.resolve_force(td_, "SendQuickReplyShortcutMessagesLogEvent")) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        Dialog *d = get_dialog(dialog_id);
-        CHECK(d != nullptr);
-        d->was_opened = true;
-
-        auto now = G()->unix_time();
-        if (can_send_message(dialog_id).is_error() || messages.empty() ||
-            (messages[0]->send_date < now - MAX_RESEND_DELAY &&
-             dialog_id != td_->dialog_manager_->get_my_dialog_id())) {
-          LOG(WARNING) << "Can't continue sending quick reply shortcut " << messages.size() << " message(s) to "
-                       << dialog_id;
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          continue;
-        }
-
-        LOG(INFO) << "Continue to send quick reply shortcut " << messages.size() << " message(s) to " << dialog_id
-                  << " from binlog";
-
-        bool need_update = false;
-        bool need_update_dialog_pos = false;
-        vector<Message *> sent_messages;
-        for (auto &message : messages) {
-          message->message_id = get_next_yet_unsent_message_id(d);
-          message->date = now;
-          message->content = dup_message_content(td_, dialog_id, message->content.get(),
-                                                 MessageContentDupType::ServerCopy, MessageCopyOptions(true, false));
-          CHECK(message->content != nullptr);
-
-          restore_message_reply_to_message_id(d, message.get());
-
-          sent_messages.push_back(add_message_to_dialog(d, std::move(message), false, true, &need_update,
-                                                        &need_update_dialog_pos,
-                                                        "send quick reply shortcut message again"));
-          send_update_new_message(d, sent_messages.back());
-        }
-
-        if (need_update_dialog_pos) {
-          send_update_chat_last_message(d, "SendQuickReplyShortcutMessagesLogEvent");
-        }
-
-        do_send_quick_reply_shortcut_messages(dialog_id, log_event.shortcut_id, sent_messages, log_event.message_ids,
-                                              event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::DeleteMessage: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        DeleteMessageLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-        log_event.id_ = event.id_;
-
-        Dialog *d = get_dialog_force(log_event.message_full_id_.get_dialog_id(), "DeleteMessageLogEvent");
-        if (d != nullptr) {
-          auto message_id = log_event.message_full_id_.get_message_id();
-          if (message_id.is_valid_scheduled() && message_id.is_scheduled_server()) {
-            add_dialog_scheduled_messages(d)->deleted_scheduled_server_message_ids_.insert(
-                message_id.get_scheduled_server_message_id());
-          } else if (message_id != MessageId()) {
-            d->deleted_message_ids.insert(message_id);
-          }
-        }
-
-        do_delete_message_log_event(log_event);
-        break;
-      }
-      case LogEvent::HandlerType::ReadHistoryOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ReadHistoryOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        Dialog *d = get_dialog_force(dialog_id, "ReadHistoryOnServerLogEvent");
-        if (d == nullptr || !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        auto &log_event_id = read_history_log_event_ids_[dialog_id][0];
-        if (log_event_id.log_event_id != 0) {
-          // we need only the latest read history event
-          binlog_erase(G()->td_db()->get_binlog(), log_event_id.log_event_id);
-        }
-        log_event_id.log_event_id = event.id_;
-
-        read_history_on_server_impl(d, log_event.max_message_id_);
-        break;
-      }
-      case LogEvent::HandlerType::ReadHistoryInSecretChat: {
-        ReadHistoryInSecretChatLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        CHECK(dialog_id.get_type() == DialogType::SecretChat);
-        Dependencies dependencies;
-        dependencies.add_dialog_and_dependencies(dialog_id);
-        if (!dependencies.resolve_force(td_, "ReadHistoryInSecretChat") ||
-            !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        auto &log_event_id = read_history_log_event_ids_[dialog_id][0];
-        if (log_event_id.log_event_id != 0) {
-          // we need only the latest read history event
-          binlog_erase(G()->td_db()->get_binlog(), log_event_id.log_event_id);
-        }
-        log_event_id.log_event_id = event.id_;
-
-        Dialog *d = get_dialog(dialog_id);
-        CHECK(d != nullptr);
-        d->last_read_inbox_message_date = log_event.max_date_;
-
-        read_history_on_server_impl(d, MessageId());
-        break;
-      }
-      case LogEvent::HandlerType::ReadMessageThreadHistoryOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ReadMessageThreadHistoryOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        Dialog *d = get_dialog_force(dialog_id, "ReadMessageThreadHistoryOnServerLogEvent");
-        if (d == nullptr || !td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        auto top_thread_message_id = log_event.top_thread_message_id_;
-        auto &log_event_id = read_history_log_event_ids_[dialog_id][top_thread_message_id.get()];
-        if (log_event_id.log_event_id != 0) {
-          // we need only the latest read history event
-          binlog_erase(G()->td_db()->get_binlog(), log_event_id.log_event_id);
-        }
-        log_event_id.log_event_id = event.id_;
-
-        read_message_thread_history_on_server_impl(d, top_thread_message_id, log_event.max_message_id_);
-        break;
-      }
-      case LogEvent::HandlerType::SaveDialogDraftMessageOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        SaveDialogDraftMessageOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        Dialog *d = get_dialog_force(dialog_id, "SaveDialogDraftMessageOnServerLogEvent");
-        if (d == nullptr || !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Write)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        d->save_draft_message_log_event_id.log_event_id = event.id_;
-
-        save_dialog_draft_message_on_server(dialog_id);
-        break;
-      }
-      case LogEvent::HandlerType::UpdateDialogNotificationSettingsOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        UpdateDialogNotificationSettingsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        Dialog *d = get_dialog_force(dialog_id, "UpdateDialogNotificationSettingsOnServerLogEvent");
-        if (d == nullptr || !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        d->save_notification_settings_log_event_id.log_event_id = event.id_;
-
-        update_dialog_notification_settings_on_server(dialog_id, true);
-        break;
-      }
-      case LogEvent::HandlerType::SetDialogFolderIdOnServer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        SetDialogFolderIdOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        Dialog *d = get_dialog_force(dialog_id, "SetDialogFolderIdOnServerLogEvent");
-        if (d == nullptr || !td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        d->set_folder_id_log_event_id.log_event_id = event.id_;
-
-        set_dialog_folder_id(d, log_event.folder_id_);
-
-        set_dialog_folder_id_on_server(dialog_id, true);
-        break;
-      }
-      case LogEvent::HandlerType::RegetDialog: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        RegetDialogLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.dialog_id_;
-        Dependencies dependencies;
-        dependencies.add_dialog_and_dependencies(dialog_id);
-        dependencies.resolve_force(td_, "RegetDialogLogEvent", true);  // dialog itself may not exist
-
-        if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        send_get_dialog_query(dialog_id, Auto(), event.id_, "RegetDialogLogEvent");
-        break;
-      }
-      case LogEvent::HandlerType::GetChannelDifference: {
-        if (td_->ignore_background_updates()) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        GetChannelDifferenceLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        DialogId dialog_id(log_event.channel_id);
-        if (dialog_id.get_type() != DialogType::Channel) {
-          LOG(ERROR) << "Trying to run GetChannelDifference in " << dialog_id;
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        LOG(INFO) << "Continue to run getChannelDifference in " << dialog_id;
-        get_channel_difference_to_log_event_id_.emplace(dialog_id, event.id_);
-        do_get_channel_difference(
-            dialog_id, load_channel_pts(dialog_id), true,
-            telegram_api::make_object<telegram_api::inputChannel>(log_event.channel_id.get(), log_event.access_hash),
-            false, "LogEvent::HandlerType::GetChannelDifference");
-        break;
-      }
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  }
-}
-
-void MessagesManager::suffix_load_loop(const Dialog *d, SuffixLoadQueries *queries) {
-  CHECK(queries != nullptr);
-  if (queries->suffix_load_has_query_) {
-    return;
-  }
-  if (queries->suffix_load_queries_.empty()) {
-    return;
-  }
-  CHECK(!queries->suffix_load_done_);
-
-  CHECK(d != nullptr);
-  auto dialog_id = d->dialog_id;
-  auto from_message_id = queries->suffix_load_first_message_id_;
-  LOG(INFO) << "Send suffix load query in " << dialog_id << " from " << from_message_id;
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id](Result<Unit> result) {
-    send_closure(actor_id, &MessagesManager::suffix_load_query_ready, dialog_id);
-  });
-  queries->suffix_load_has_query_ = true;
-  queries->suffix_load_query_message_id_ = from_message_id;
-  get_history_impl(d, from_message_id, -1, MAX_GET_HISTORY, true, true, std::move(promise), "suffix_load_loop");
-}
-
-void MessagesManager::suffix_load_update_first_message_id(const Dialog *d, SuffixLoadQueries *queries) {
-  CHECK(d != nullptr);
-  CHECK(queries != nullptr);
-  if (!queries->suffix_load_first_message_id_.is_valid()) {
-    if (!d->last_message_id.is_valid()) {
-      return;
-    }
-
-    queries->suffix_load_first_message_id_ = d->last_message_id;
-  }
-  auto it = d->ordered_messages.get_const_iterator(queries->suffix_load_first_message_id_);
-  CHECK(*it != nullptr);
-  CHECK((*it)->get_message_id() == queries->suffix_load_first_message_id_);
-  while (true) {
-    --it;
-    if (*it == nullptr) {
-      break;
-    }
-    queries->suffix_load_first_message_id_ = (*it)->get_message_id();
-  }
-}
-
-void MessagesManager::suffix_load_query_ready(DialogId dialog_id) {
-  auto *queries = dialog_suffix_load_queries_[dialog_id].get();
-  CHECK(queries != nullptr);
-  CHECK(queries->suffix_load_has_query_);
-
-  LOG(INFO) << "Finished suffix load query in " << dialog_id;
-  auto *d = get_dialog(dialog_id);
-  bool is_unchanged = queries->suffix_load_first_message_id_ == queries->suffix_load_query_message_id_;
-  suffix_load_update_first_message_id(d, queries);
-  if (is_unchanged && queries->suffix_load_first_message_id_ == queries->suffix_load_query_message_id_) {
-    LOG(INFO) << "Finished suffix load in " << dialog_id;
-    queries->suffix_load_done_ = true;
-  }
-  queries->suffix_load_has_query_ = false;
-
-  // Remove ready queries
-  auto *m = get_message_force(d, queries->suffix_load_first_message_id_, "suffix_load_query_ready");
-  auto ready_it = std::partition(queries->suffix_load_queries_.begin(), queries->suffix_load_queries_.end(),
-                                 [&](auto &value) { return !(queries->suffix_load_done_ || value.second(m)); });
-  for (auto it = ready_it; it != queries->suffix_load_queries_.end(); ++it) {
-    it->first.set_value(Unit());
-  }
-  queries->suffix_load_queries_.erase(ready_it, queries->suffix_load_queries_.end());
-
-  suffix_load_loop(d, queries);
-}
-
-void MessagesManager::suffix_load_add_query(Dialog *d,
-                                            std::pair<Promise<Unit>, std::function<bool(const Message *)>> query) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto &queries = dialog_suffix_load_queries_[d->dialog_id];
-  if (queries == nullptr) {
-    queries = make_unique<SuffixLoadQueries>();
-  }
-  suffix_load_update_first_message_id(d, queries.get());
-  auto *m = get_message_force(d, queries->suffix_load_first_message_id_, "suffix_load_add_query");
-  if (queries->suffix_load_done_ || query.second(m)) {
-    query.first.set_value(Unit());
-  } else {
-    queries->suffix_load_queries_.emplace_back(std::move(query));
-    suffix_load_loop(d, queries.get());
-  }
-}
-
-void MessagesManager::suffix_load_till_date(Dialog *d, int32 date, Promise<Unit> promise) {
-  LOG(INFO) << "Load suffix of " << d->dialog_id << " till date " << date;
-  auto condition = [date](const Message *m) {
-    return m != nullptr && m->date < date;
-  };
-  suffix_load_add_query(d, std::make_pair(std::move(promise), std::move(condition)));
-}
-
-void MessagesManager::suffix_load_till_message_id(Dialog *d, MessageId message_id, Promise<Unit> promise) {
-  LOG(INFO) << "Load suffix of " << d->dialog_id << " till " << message_id;
-  auto condition = [message_id](const Message *m) {
-    return m != nullptr && m->message_id < message_id;
-  };
-  suffix_load_add_query(d, std::make_pair(std::move(promise), std::move(condition)));
-}
-
-void MessagesManager::set_poll_answer(MessageFullId message_full_id, vector<int32> &&option_ids,
-                                      Promise<Unit> &&promise) {
-  auto m = get_message_force(message_full_id, "set_poll_answer");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!td_->dialog_manager_->have_input_peer(message_full_id.get_dialog_id(), true, AccessRights::Read)) {
-    return promise.set_error(Status::Error(400, "Can't access the chat"));
-  }
-  if (m->content->get_type() != MessageContentType::Poll) {
-    return promise.set_error(Status::Error(400, "Message is not a poll"));
-  }
-  if (m->message_id.is_scheduled()) {
-    return promise.set_error(Status::Error(400, "Can't answer polls from scheduled messages"));
-  }
-  if (!m->message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Poll can't be answered"));
-  }
-
-  set_message_content_poll_answer(td_, m->content.get(), message_full_id, std::move(option_ids), std::move(promise));
-}
-
-void MessagesManager::get_poll_voters(MessageFullId message_full_id, int32 option_id, int32 offset, int32 limit,
-                                      Promise<td_api::object_ptr<td_api::messageSenders>> &&promise) {
-  auto m = get_message_force(message_full_id, "get_poll_voters");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!td_->dialog_manager_->have_input_peer(message_full_id.get_dialog_id(), true, AccessRights::Read)) {
-    return promise.set_error(Status::Error(400, "Can't access the chat"));
-  }
-  if (m->content->get_type() != MessageContentType::Poll) {
-    return promise.set_error(Status::Error(400, "Message is not a poll"));
-  }
-  if (m->message_id.is_scheduled()) {
-    return promise.set_error(Status::Error(400, "Can't get poll results from scheduled messages"));
-  }
-  if (!m->message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Poll results can't be received"));
-  }
-
-  get_message_content_poll_voters(td_, m->content.get(), message_full_id, option_id, offset, limit, std::move(promise));
-}
-
-void MessagesManager::stop_poll(MessageFullId message_full_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                Promise<Unit> &&promise) {
-  auto m = get_message_force(message_full_id, "stop_poll");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!td_->dialog_manager_->have_input_peer(message_full_id.get_dialog_id(), true, AccessRights::Read)) {
-    return promise.set_error(Status::Error(400, "Can't access the chat"));
-  }
-  if (m->content->get_type() != MessageContentType::Poll) {
-    return promise.set_error(Status::Error(400, "Message is not a poll"));
-  }
-  if (get_message_content_poll_is_closed(td_, m->content.get())) {
-    return promise.set_error(Status::Error(400, "Poll has already been closed"));
-  }
-  if (!can_edit_message(message_full_id.get_dialog_id(), m, true)) {
-    return promise.set_error(Status::Error(400, "Poll can't be stopped"));
-  }
-  if (m->message_id.is_scheduled()) {
-    return promise.set_error(Status::Error(400, "Can't stop polls from scheduled messages"));
-  }
-  if (!m->message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Poll can't be stopped"));
-  }
-
-  TRY_RESULT_PROMISE(promise, new_reply_markup,
-                     get_reply_markup(std::move(reply_markup), td_->auth_manager_->is_bot(), true, false,
-                                      has_message_sender_user_id(message_full_id.get_dialog_id(), m)));
-
-  stop_message_content_poll(td_, m->content.get(), message_full_id, std::move(new_reply_markup), std::move(promise));
-}
-
-void MessagesManager::finish_gift_upgrade(MessageFullId message_full_id,
-                                          Promise<td_api::object_ptr<td_api::upgradeGiftResult>> &&promise) {
-  auto m = get_message_force(message_full_id, "finish_gift_upgrade");
-  if (m == nullptr || m->content->get_type() != MessageContentType::StarGiftUnique) {
-    return promise.set_error(Status::Error(500, "Gift not found"));
-  }
-  promise.set_value(get_message_content_upgrade_gift_result_object(m->content.get(), td_,
-                                                                   message_full_id.get_dialog_id(), m->message_id));
-}
-
-Result<MessagesManager::InvoiceMessageInfo> MessagesManager::get_invoice_message_info(MessageFullId message_full_id) {
-  auto m = get_message_force(message_full_id, "get_invoice_message_info");
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-  auto content_type = m->content->get_type();
-  if (content_type != MessageContentType::Invoice) {
-    if (content_type != MessageContentType::PaidMedia) {
-      return Status::Error(400, "Message has no invoice");
-    }
-    if (!need_poll_message_content_extended_media(m->content.get())) {
-      return Status::Error(400, "Message media has already been bought");
-    }
-  }
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Wrong scheduled message identifier");
-  }
-  if (!m->message_id.is_server()) {
-    return Status::Error(400, "Wrong message identifier");
-  }
-  if (m->reply_markup == nullptr || m->reply_markup->inline_keyboard.empty() ||
-      m->reply_markup->inline_keyboard[0].empty() ||
-      m->reply_markup->inline_keyboard[0][0].type != InlineKeyboardButton::Type::Buy) {
-    if (content_type != MessageContentType::PaidMedia) {
-      return Status::Error(400, "Message has no Pay button");
-    }
-  }
-
-  InvoiceMessageInfo result;
-  result.server_message_id_ = m->message_id.get_server_message_id();
-  result.star_count_ =
-      content_type != MessageContentType::PaidMedia ? 0 : get_message_content_star_count(m->content.get());
-  return std::move(result);
-}
-
-Result<ServerMessageId> MessagesManager::get_payment_successful_message_id(MessageFullId message_full_id) {
-  auto m = get_message_force(message_full_id, "get_payment_successful_message_id");
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-  if (m->content->get_type() != MessageContentType::PaymentSuccessful) {
-    return Status::Error(400, "Message has wrong type");
-  }
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Wrong scheduled message identifier");
-  }
-  if (!m->message_id.is_server()) {
-    return Status::Error(400, "Wrong message identifier");
-  }
-
-  return m->message_id.get_server_message_id();
-}
-
-Result<ServerMessageId> MessagesManager::get_giveaway_message_id(MessageFullId message_full_id) {
-  auto m = get_message_force(message_full_id, "get_giveaway_message_id");
-  if (m == nullptr) {
-    return Status::Error(400, "Message not found");
-  }
-  switch (m->content->get_type()) {
-    case MessageContentType::Giveaway:
-    case MessageContentType::GiveawayWinners:
-      // ok
-      break;
-    default:
-      return Status::Error(400, "Message has wrong type");
-  }
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Wrong scheduled message identifier");
-  }
-  if (!m->message_id.is_server()) {
-    return Status::Error(400, "Wrong message identifier");
-  }
-
-  return m->message_id.get_server_message_id();
-}
-
-void MessagesManager::add_sponsored_dialog(const Dialog *d, DialogSource source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  CHECK(!sponsored_dialog_id_.is_valid());
-  sponsored_dialog_id_ = d->dialog_id;
-  sponsored_dialog_source_ = std::move(source);
-
-  // update last_pinned_dialog_date in any case, because all chats before SPONSORED_DIALOG_ORDER are known
-  auto dialog_list_id = DialogListId(FolderId::main());
-  auto *list = get_dialog_list(dialog_list_id);
-  CHECK(list != nullptr);
-  DialogDate max_dialog_date(SPONSORED_DIALOG_ORDER, d->dialog_id);
-  if (list->last_pinned_dialog_date_ < max_dialog_date) {
-    list->last_pinned_dialog_date_ = max_dialog_date;
-    update_list_last_dialog_date(*list);
-  }
-
-  if (is_dialog_sponsored(d)) {
-    send_update_chat_position(dialog_list_id, d, "add_sponsored_dialog");
-    // the sponsored dialog must not be saved there
-  }
-}
-
-void MessagesManager::save_sponsored_dialog() {
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  LOG(INFO) << "Save sponsored " << sponsored_dialog_id_ << " with source " << sponsored_dialog_source_;
-  if (sponsored_dialog_id_.is_valid()) {
-    G()->td_db()->get_binlog_pmc()->set(
-        "sponsored_dialog_id",
-        PSTRING() << sponsored_dialog_id_.get() << ' ' << sponsored_dialog_source_.DialogSource::serialize());
-  } else {
-    G()->td_db()->get_binlog_pmc()->erase("sponsored_dialog_id");
-  }
-}
-
-void MessagesManager::set_sponsored_dialog(DialogId dialog_id, DialogSource source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  LOG(INFO) << "Change sponsored chat from " << sponsored_dialog_id_ << " to " << dialog_id;
-  if (removed_sponsored_dialog_id_.is_valid() && dialog_id == removed_sponsored_dialog_id_) {
-    return;
-  }
-
-  if (sponsored_dialog_id_ == dialog_id) {
-    if (sponsored_dialog_source_ != source) {
-      CHECK(sponsored_dialog_id_.is_valid());
-      sponsored_dialog_source_ = std::move(source);
-      const Dialog *d = get_dialog(sponsored_dialog_id_);
-      CHECK(d != nullptr);
-      send_update_chat_position(DialogListId(FolderId::main()), d, "set_sponsored_dialog");
-      save_sponsored_dialog();
-    }
-    return;
-  }
-
-  bool need_update_total_chat_count = false;
-  if (sponsored_dialog_id_.is_valid()) {
-    const Dialog *d = get_dialog(sponsored_dialog_id_);
-    CHECK(d != nullptr);
-    bool was_sponsored = is_dialog_sponsored(d);
-    sponsored_dialog_id_ = DialogId();
-    sponsored_dialog_source_ = DialogSource();
-    if (was_sponsored) {
-      send_update_chat_position(DialogListId(FolderId::main()), d, "set_sponsored_dialog 2");
-      need_update_total_chat_count = true;
-    }
-  }
-
-  if (dialog_id.is_valid()) {
-    force_create_dialog(dialog_id, "set_sponsored_dialog_id");
-    const Dialog *d = get_dialog(dialog_id);
-    CHECK(d != nullptr);
-    add_sponsored_dialog(d, std::move(source));
-    if (is_dialog_sponsored(d)) {
-      need_update_total_chat_count = !need_update_total_chat_count;
-    }
-  }
-
-  if (need_update_total_chat_count) {
-    auto dialog_list_id = DialogListId(FolderId::main());
-    auto *list = get_dialog_list(dialog_list_id);
-    CHECK(list != nullptr);
-    if (list->is_dialog_unread_count_inited_) {
-      send_update_unread_chat_count(*list, DialogId(), true, "set_sponsored_dialog_id");
-    }
-  }
-
-  save_sponsored_dialog();
-}
-
-td_api::object_ptr<td_api::updateUnreadMessageCount> MessagesManager::get_update_unread_message_count_object(
-    const DialogList &list) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(list.is_message_unread_count_inited_);
-  int32 unread_count = list.unread_message_total_count_;
-  int32 unread_unmuted_count = list.unread_message_total_count_ - list.unread_message_muted_count_;
-  CHECK(unread_count >= 0);
-  CHECK(unread_unmuted_count >= 0);
-  return td_api::make_object<td_api::updateUnreadMessageCount>(list.dialog_list_id.get_chat_list_object(), unread_count,
-                                                               unread_unmuted_count);
-}
-
-td_api::object_ptr<td_api::updateUnreadChatCount> MessagesManager::get_update_unread_chat_count_object(
-    const DialogList &list) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(list.is_dialog_unread_count_inited_);
-  int32 unread_count = list.unread_dialog_total_count_;
-  int32 unread_unmuted_count = unread_count - list.unread_dialog_muted_count_;
-  int32 unread_marked_count = list.unread_dialog_marked_count_;
-  int32 unread_unmuted_marked_count = unread_marked_count - list.unread_dialog_muted_marked_count_;
-  CHECK(unread_count >= 0);
-  CHECK(unread_unmuted_count >= 0);
-  CHECK(unread_marked_count >= 0);
-  CHECK(unread_unmuted_marked_count >= 0);
-  return td_api::make_object<td_api::updateUnreadChatCount>(
-      list.dialog_list_id.get_chat_list_object(), get_dialog_total_count(list), unread_count, unread_unmuted_count,
-      unread_marked_count, unread_unmuted_marked_count);
-}
-
-void MessagesManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (!td_->auth_manager_->is_bot()) {
-    if (G()->use_message_database()) {
-      for (const auto &it : dialog_lists_) {
-        auto &list = it.second;
-        if (list.is_message_unread_count_inited_) {
-          updates.push_back(get_update_unread_message_count_object(list));
-        }
-        if (list.is_dialog_unread_count_inited_) {
-          updates.push_back(get_update_unread_chat_count_object(list));
-        }
-      }
-    }
-  }
-
-  vector<td_api::object_ptr<td_api::Update>> last_message_updates;
-  dialogs_.foreach([&](const DialogId &dialog_id, const unique_ptr<Dialog> &dialog) {
-    const Dialog *d = dialog.get();
-    auto update = td_api::make_object<td_api::updateNewChat>(get_chat_object(d, "get_current_state"));
-    if (update->chat_->last_message_ != nullptr) {
-      last_message_updates.push_back(td_api::make_object<td_api::updateChatLastMessage>(
-          get_chat_id_object(dialog_id, "updateChatLastMessage"), std::move(update->chat_->last_message_),
-          get_chat_positions_object(d)));
-    }
-    updates.push_back(std::move(update));
-  });
-  append(updates, std::move(last_message_updates));
-
-  if (!active_live_location_message_full_ids_.empty()) {
-    updates.push_back(get_update_active_live_location_messages_object());
-  }
-}
-
-void MessagesManager::add_message_file_to_downloads(MessageFullId message_full_id, FileId file_id, int32 priority,
-                                                    Promise<td_api::object_ptr<td_api::file>> promise) {
-  TRY_STATUS_PROMISE(promise, FileManager::check_priority(priority));
-  auto m = get_message_force(message_full_id, "add_message_file_to_downloads");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.empty()) {
-    return promise.set_error(Status::Error(400, "File not found"));
-  }
-  file_id = file_view.get_main_file_id();
-  bool is_found = false;
-  for (auto message_file_id : get_message_file_ids(m)) {
-    auto message_file_view = td_->file_manager_->get_file_view(message_file_id);
-    CHECK(!message_file_view.empty());
-    if (message_file_view.get_main_file_id() == file_id) {
-      is_found = true;
-    }
-  }
-  if (!is_found) {
-    return promise.set_error(Status::Error(400, "Message has no specified file"));
-  }
-  if (m->message_id.is_yet_unsent()) {
-    return promise.set_error(Status::Error(400, "Yet unsent messages can't be added to Downloads"));
-  }
-  auto search_text = get_message_search_text(m);
-  auto file_source_id = get_message_file_source_id(message_full_id, true);
-  CHECK(file_source_id.is_valid());
-  send_closure(td_->download_manager_actor_, &DownloadManager::add_file, file_id, file_source_id,
-               std::move(search_text), static_cast<int8>(priority), std::move(promise));
-}
-
-void MessagesManager::get_message_file_search_text(MessageFullId message_full_id, string unique_file_id,
-                                                   Promise<string> promise) {
-  auto m = get_message_force(message_full_id, "get_message_file_search_text");
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(200, "Message not found"));
-  }
-  for (auto file_id : get_message_file_ids(m)) {
-    auto file_view = td_->file_manager_->get_file_view(file_id);
-    CHECK(!file_view.empty());
-    if (file_view.get_unique_file_id() == unique_file_id) {
-      return promise.set_value(get_message_search_text(m));
-    }
-  }
-  return promise.set_error(Status::Error(200, "File not found"));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MessagesManager.h b/third-party/td/td/td/telegram/MessagesManager.h
deleted file mode 100644
index 1249dd2fb6..0000000000
--- a/third-party/td/td/td/telegram/MessagesManager.h
+++ /dev/null
@@ -1,3409 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/BackgroundInfo.h"
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatReactions.h"
-#include "td/telegram/DialogDate.h"
-#include "td/telegram/DialogDb.h"
-#include "td/telegram/DialogFilterDialogInfo.h"
-#include "td/telegram/DialogFilterId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogListId.h"
-#include "td/telegram/DialogNotificationSettings.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/DialogSource.h"
-#include "td/telegram/EncryptedFile.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/InputGroupCallId.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageCopyOptions.h"
-#include "td/telegram/MessageDb.h"
-#include "td/telegram/MessageEffectId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageInputReplyTo.h"
-#include "td/telegram/MessageLinkInfo.h"
-#include "td/telegram/MessageOrigin.h"
-#include "td/telegram/MessageReplyHeader.h"
-#include "td/telegram/MessageReplyInfo.h"
-#include "td/telegram/MessageSearchFilter.h"
-#include "td/telegram/MessageSelfDestructType.h"
-#include "td/telegram/MessagesInfo.h"
-#include "td/telegram/MessageSource.h"
-#include "td/telegram/MessageThreadInfo.h"
-#include "td/telegram/MessageTtl.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/Notification.h"
-#include "td/telegram/NotificationGroupFromDatabase.h"
-#include "td/telegram/NotificationGroupId.h"
-#include "td/telegram/NotificationGroupInfo.h"
-#include "td/telegram/NotificationGroupKey.h"
-#include "td/telegram/NotificationGroupType.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/NotificationSettingsScope.h"
-#include "td/telegram/OrderedMessage.h"
-#include "td/telegram/QuickReplyShortcutId.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/ReactionUnavailabilityReason.h"
-#include "td/telegram/RepliedMessageInfo.h"
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/RestrictionReason.h"
-#include "td/telegram/SavedMessagesTopicId.h"
-#include "td/telegram/ScheduledServerMessageId.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/StoryNotificationSettings.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiPromise.h"
-#include "td/actor/MultiTimeout.h"
-#include "td/actor/SignalSlot.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/ChangesProcessor.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Heap.h"
-#include "td/utils/Hints.h"
-#include "td/utils/List.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeHashSet.h"
-
-#include <array>
-#include <functional>
-#include <map>
-#include <memory>
-#include <queue>
-#include <set>
-#include <unordered_map>
-#include <unordered_set>
-#include <utility>
-
-namespace td {
-
-struct BinlogEvent;
-class BusinessBotManageBar;
-class Dependencies;
-class DialogActionBar;
-class DialogFilter;
-class DraftMessage;
-class FactCheck;
-struct InputMessageContent;
-class MessageContent;
-class MessageForwardInfo;
-struct MessageReactions;
-class MissingInvitees;
-class Td;
-class Usernames;
-
-class MessagesManager final : public Actor {
- public:
-  static constexpr int32 SEND_MESSAGE_FLAG_DISABLE_WEB_PAGE_PREVIEW = 1 << 1;
-  static constexpr int32 SEND_MESSAGE_FLAG_HAS_REPLY_MARKUP = 1 << 2;
-  static constexpr int32 SEND_MESSAGE_FLAG_HAS_ENTITIES = 1 << 3;
-  //  static constexpr int32 SEND_MESSAGE_FLAG_IS_POST = 1 << 4;
-  static constexpr int32 SEND_MESSAGE_FLAG_DISABLE_NOTIFICATION = 1 << 5;
-  static constexpr int32 SEND_MESSAGE_FLAG_FROM_BACKGROUND = 1 << 6;
-  static constexpr int32 SEND_MESSAGE_FLAG_CLEAR_DRAFT = 1 << 7;
-  static constexpr int32 SEND_MESSAGE_FLAG_WITH_MY_SCORE = 1 << 8;
-  static constexpr int32 SEND_MESSAGE_FLAG_IS_FROM_THREAD = 1 << 9;
-  static constexpr int32 SEND_MESSAGE_FLAG_HAS_SCHEDULE_DATE = 1 << 10;
-  static constexpr int32 SEND_MESSAGE_FLAG_HAS_MESSAGE = 1 << 11;
-  static constexpr int32 SEND_MESSAGE_FLAG_HAS_SEND_AS = 1 << 13;
-  static constexpr int32 SEND_MESSAGE_FLAG_NOFORWARDS = 1 << 14;
-  static constexpr int32 SEND_MESSAGE_FLAG_UPDATE_STICKER_SETS_ORDER = 1 << 15;
-  static constexpr int32 SEND_MESSAGE_FLAG_INVERT_MEDIA = 1 << 16;
-  static constexpr int32 SEND_MESSAGE_FLAG_EFFECT = 1 << 18;
-  static constexpr int32 SEND_MESSAGE_FLAG_ALLOW_PAID = 1 << 19;
-  static constexpr int32 SEND_MESSAGE_FLAG_ALLOW_PAID_STARS = 1 << 21;
-
-  MessagesManager(Td *td, ActorShared<> parent);
-  MessagesManager(const MessagesManager &) = delete;
-  MessagesManager &operator=(const MessagesManager &) = delete;
-  MessagesManager(MessagesManager &&) = delete;
-  MessagesManager &operator=(MessagesManager &&) = delete;
-  ~MessagesManager() final;
-
-  static bool is_invalid_poll_message(const telegram_api::Message *message);
-
-  static bool process_send_message_fail_error(int32 &error_code, string &error_message, DialogId dialog_id, bool is_bot,
-                                              MessageContentType content_type);
-
-  static int64 get_required_paid_message_star_count(int32 error_code, CSlice error_message);
-
-  static int32 get_message_date(const tl_object_ptr<telegram_api::Message> &message_ptr);
-
-  void on_get_empty_messages(DialogId dialog_id, const vector<MessageId> &empty_message_ids);
-
-  bool need_channel_difference_to_add_message(DialogId dialog_id,
-                                              const tl_object_ptr<telegram_api::Message> &message_ptr);
-
-  void get_channel_difference_if_needed(DialogId dialog_id, MessageId message_id, const char *source);
-
-  void get_channel_difference_if_needed(DialogId dialog_id, MessagesInfo &&messages_info,
-                                        Promise<MessagesInfo> &&promise, const char *source);
-
-  void get_channel_differences_if_needed(MessagesInfo &&messages_info, Promise<MessagesInfo> &&promise,
-                                         const char *source);
-
-  void get_channel_differences_if_needed(
-      const vector<const telegram_api::object_ptr<telegram_api::Message> *> &messages, Promise<Unit> &&promise,
-      const char *source);
-
-  void run_after_channel_difference(DialogId dialog_id, MessageId expected_max_message_id, Promise<Unit> &&promise,
-                                    const char *source);
-
-  void on_get_messages(vector<tl_object_ptr<telegram_api::Message>> &&messages, bool is_channel_message,
-                       bool is_scheduled, Promise<Unit> &&promise, const char *source);
-
-  void on_get_history(DialogId dialog_id, MessageId from_message_id, MessageId old_last_new_message_id, int32 offset,
-                      int32 limit, bool from_the_end, vector<tl_object_ptr<telegram_api::Message>> &&messages,
-                      Promise<Unit> &&promise);
-
-  void on_get_message_search_result_calendar(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                             MessageId from_message_id, MessageSearchFilter filter, int32 total_count,
-                                             vector<tl_object_ptr<telegram_api::Message>> &&messages,
-                                             vector<tl_object_ptr<telegram_api::searchResultsCalendarPeriod>> &&periods,
-                                             Promise<td_api::object_ptr<td_api::messageCalendar>> &&promise);
-
-  void on_get_call_messages(MessageId from_message_id, int32 limit, MessageSearchFilter filter, int32 total_count,
-                            vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-                            Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void on_get_dialog_messages_search_result(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                            const string &query, DialogId sender_dialog_id, MessageId from_message_id,
-                                            int32 offset, int32 limit, MessageSearchFilter filter,
-                                            MessageId top_thread_message_id, const ReactionType &tag, int64 random_id,
-                                            int32 total_count, vector<tl_object_ptr<telegram_api::Message>> &&messages,
-                                            Promise<Unit> &&promise);
-  void on_failed_dialog_messages_search(DialogId dialog_id, int64 random_id);
-
-  void on_get_dialog_message_count(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                   MessageSearchFilter filter, int32 total_count, Promise<int32> &&promise);
-
-  void on_get_scheduled_server_messages(DialogId dialog_id, uint32 generation,
-                                        vector<tl_object_ptr<telegram_api::Message>> &&messages, bool is_not_modified);
-
-  MessageFullId on_get_message(tl_object_ptr<telegram_api::Message> message_ptr, bool from_update,
-                               bool is_channel_message, bool is_scheduled, const char *source);
-
-  void open_secret_message(SecretChatId secret_chat_id, int64 random_id, Promise<Unit>);
-
-  void on_send_secret_message_success(int64 random_id, MessageId message_id, int32 date, unique_ptr<EncryptedFile> file,
-                                      Promise<Unit> promise);
-  void on_send_secret_message_error(int64 random_id, Status error, Promise<Unit> promise);
-
-  void delete_secret_messages(SecretChatId secret_chat_id, std::vector<int64> random_ids, Promise<Unit> promise);
-
-  void delete_secret_chat_history(SecretChatId secret_chat_id, bool remove_from_dialog_list, MessageId last_message_id,
-                                  Promise<Unit> promise);
-
-  void read_secret_chat_outbox(SecretChatId secret_chat_id, int32 up_to_date, int32 read_date);
-
-  void on_update_secret_chat_state(SecretChatId secret_chat_id, SecretChatState state);
-
-  void on_get_secret_message(SecretChatId secret_chat_id, UserId user_id, MessageId message_id, int32 date,
-                             unique_ptr<EncryptedFile> file, tl_object_ptr<secret_api::decryptedMessage> message,
-                             Promise<Unit> promise);
-
-  void on_secret_chat_screenshot_taken(SecretChatId secret_chat_id, UserId user_id, MessageId message_id, int32 date,
-                                       int64 random_id, Promise<Unit> promise);
-
-  void on_secret_chat_ttl_changed(SecretChatId secret_chat_id, UserId user_id, MessageId message_id, int32 date,
-                                  int32 ttl, int64 random_id, Promise<Unit> promise);
-
-  void on_update_sent_text_message(int64 random_id, tl_object_ptr<telegram_api::MessageMedia> message_media,
-                                   vector<tl_object_ptr<telegram_api::MessageEntity>> &&entities);
-
-  void delete_pending_message_web_page(MessageFullId message_full_id);
-
-  void on_get_dialogs(FolderId folder_id, vector<tl_object_ptr<telegram_api::Dialog>> &&dialog_folders,
-                      int32 total_count, vector<tl_object_ptr<telegram_api::Message>> &&messages,
-                      Promise<Unit> &&promise);
-
-  bool on_update_message_id(int64 random_id, MessageId new_message_id, const char *source);
-
-  void on_update_message_video_published(MessageFullId message_full_id);
-
-  void on_update_dialog_draft_message(DialogId dialog_id, MessageId top_thread_message_id,
-                                      tl_object_ptr<telegram_api::DraftMessage> &&draft_message, bool force = false);
-
-  void on_update_dialog_is_pinned(FolderId folder_id, DialogId dialog_id, bool is_pinned);
-
-  void on_update_pinned_dialogs(FolderId folder_id);
-
-  void on_update_dialog_is_forum(DialogId dialog_id, bool is_forum);
-
-  void on_update_dialog_view_as_messages(DialogId dialog_id, bool view_as_messages);
-
-  void on_update_dialog_is_marked_as_unread(DialogId dialog_id, bool is_marked_as_unread);
-
-  void on_update_dialog_is_translatable(DialogId dialog_id, bool is_translatable);
-
-  void update_is_translatable(bool new_is_premium);
-
-  void on_update_dialog_is_blocked(DialogId dialog_id, bool is_blocked, bool is_blocked_for_stories);
-
-  void on_update_dialog_business_bot_is_paused(DialogId dialog_id, bool is_paused);
-
-  void on_update_dialog_business_bot_removed(DialogId dialog_id);
-
-  void on_update_dialog_last_pinned_message_id(DialogId dialog_id, MessageId last_pinned_message_id);
-
-  void on_update_dialog_background(DialogId dialog_id, telegram_api::object_ptr<telegram_api::WallPaper> &&wallpaper);
-
-  void on_update_dialog_theme_name(DialogId dialog_id, string theme_name);
-
-  void on_update_dialog_pending_join_requests(DialogId dialog_id, int32 pending_join_request_count,
-                                              vector<int64> pending_requesters);
-
-  void on_update_dialog_has_scheduled_server_messages(DialogId dialog_id, bool has_scheduled_server_messages);
-
-  void on_update_dialog_folder_id(DialogId dialog_id, FolderId folder_id);
-
-  void on_update_dialog_group_call(DialogId dialog_id, bool has_active_group_call, bool is_group_call_empty,
-                                   const char *source, bool force = false);
-
-  void on_update_dialog_group_call_id(DialogId dialog_id, InputGroupCallId input_group_call_id);
-
-  void on_update_dialog_default_join_group_call_as_dialog_id(DialogId dialog_id, DialogId default_join_as_dialog_id,
-                                                             bool force);
-
-  void on_update_dialog_default_send_message_as_dialog_id(DialogId dialog_id, DialogId default_send_as_dialog_id,
-                                                          bool force);
-
-  void on_update_dialog_message_ttl(DialogId dialog_id, MessageTtl message_ttl);
-
-  void on_update_service_notification(tl_object_ptr<telegram_api::updateServiceNotification> &&update,
-                                      bool skip_new_entities, Promise<Unit> &&promise);
-
-  void on_update_read_channel_inbox(tl_object_ptr<telegram_api::updateReadChannelInbox> &&update);
-
-  void on_update_read_channel_outbox(tl_object_ptr<telegram_api::updateReadChannelOutbox> &&update);
-
-  void on_update_read_channel_messages_contents(
-      tl_object_ptr<telegram_api::updateChannelReadMessagesContents> &&update);
-
-  void on_update_read_message_comments(DialogId dialog_id, MessageId message_id, MessageId max_message_id,
-                                       MessageId last_read_inbox_message_id, MessageId last_read_outbox_message_id,
-                                       int32 unread_count);
-
-  void on_update_channel_too_long(tl_object_ptr<telegram_api::updateChannelTooLong> &&update, bool force_apply);
-
-  void on_update_message_view_count(MessageFullId message_full_id, int32 view_count);
-
-  void on_update_message_forward_count(MessageFullId message_full_id, int32 forward_count);
-
-  void on_update_message_reactions(MessageFullId message_full_id,
-                                   tl_object_ptr<telegram_api::messageReactions> &&reactions, Promise<Unit> &&promise);
-
-  void update_message_reactions(MessageFullId message_full_id, unique_ptr<MessageReactions> &&reactions);
-
-  void on_get_message_reaction_list(MessageFullId message_full_id, const ReactionType &reaction_type,
-                                    FlatHashMap<ReactionType, vector<DialogId>, ReactionTypeHash> reaction_types,
-                                    int32 total_count);
-
-  void on_update_message_interaction_info(MessageFullId message_full_id, int32 view_count, int32 forward_count,
-                                          bool has_reply_info,
-                                          tl_object_ptr<telegram_api::messageReplies> &&reply_info);
-
-  void on_update_message_fact_check(MessageFullId message_full_id, unique_ptr<FactCheck> &&fact_check);
-
-  void on_update_live_location_viewed(MessageFullId message_full_id);
-
-  void on_update_some_live_location_viewed(Promise<Unit> &&promise);
-
-  void on_update_message_extended_media(
-      MessageFullId message_full_id,
-      vector<telegram_api::object_ptr<telegram_api::MessageExtendedMedia>> extended_media);
-
-  void on_external_update_message_content(MessageFullId message_full_id, const char *source,
-                                          bool expect_no_message = false);
-
-  void on_update_message_content(MessageFullId message_full_id);
-
-  void on_read_channel_inbox(ChannelId channel_id, MessageId max_message_id, int32 server_unread_count, int32 pts,
-                             const char *source);
-
-  void on_update_channel_max_unavailable_message_id(ChannelId channel_id, MessageId max_unavailable_message_id,
-                                                    const char *source);
-
-  void on_update_delete_scheduled_messages(DialogId dialog_id, vector<ScheduledServerMessageId> &&server_message_ids);
-
-  void on_dialog_speaking_action(DialogId dialog_id, DialogId speaking_dialog_id, int32 date);
-
-  void on_message_animated_emoji_clicked(MessageFullId message_full_id, string &&emoji, string &&data);
-
-  void read_history_inbox(DialogId dialog_id, MessageId max_message_id, int32 unread_count, const char *source);
-
-  void read_history_outbox(DialogId dialog_id, MessageId max_message_id, int32 read_date = -1);
-
-  void delete_messages(DialogId dialog_id, const vector<MessageId> &message_ids, bool revoke, Promise<Unit> &&promise);
-
-  void on_messages_deleted(DialogId dialog_id, const vector<MessageId> &message_ids);
-
-  void on_failed_message_deletion(DialogId dialog_id, const vector<int32> &server_message_ids);
-
-  void on_scheduled_messages_deleted(DialogId dialog_id, const vector<MessageId> &message_ids);
-
-  void on_failed_scheduled_message_deletion(DialogId dialog_id, const vector<MessageId> &message_ids);
-
-  void delete_dialog_history(DialogId dialog_id, bool remove_from_dialog_list, bool revoke, Promise<Unit> &&promise);
-
-  void delete_topic_history(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> &&promise);
-
-  void delete_all_call_messages(bool revoke, Promise<Unit> &&promise);
-
-  void delete_dialog_messages_by_sender(DialogId dialog_id, DialogId sender_dialog_id, Promise<Unit> &&promise);
-
-  static Status fix_delete_message_min_max_dates(int32 &min_date, int32 &max_date);
-
-  void delete_dialog_messages_by_date(DialogId dialog_id, int32 min_date, int32 max_date, bool revoke,
-                                      Promise<Unit> &&promise);
-
-  void on_dialog_deleted(DialogId dialog_id, Promise<Unit> &&promise);
-
-  void on_update_dialog_group_call_rights(DialogId dialog_id);
-
-  void read_all_dialog_mentions(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> &&promise);
-
-  void read_all_dialog_reactions(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> &&promise);
-
-  void get_dialog_send_message_as_dialog_ids(DialogId dialog_id,
-                                             Promise<td_api::object_ptr<td_api::chatMessageSenders>> &&promise,
-                                             bool is_recursive = false);
-
-  void set_dialog_default_send_message_as_dialog_id(DialogId dialog_id, DialogId message_sender_dialog_id,
-                                                    Promise<Unit> &&promise);
-
-  bool get_dialog_silent_send_message(DialogId dialog_id) const;
-
-  bool get_dialog_has_last_message(DialogId dialog_id) const;
-
-  DialogId get_dialog_default_send_message_as_dialog_id(DialogId dialog_id) const;
-
-  struct ForwardedMessageInfo {
-    int32 origin_date_ = 0;
-    MessageOrigin origin_;
-    unique_ptr<MessageContent> content_;
-  };
-  ForwardedMessageInfo get_forwarded_message_info(MessageFullId message_full_id);
-
-  MessageInputReplyTo create_message_input_reply_to(DialogId dialog_id, MessageId top_thread_message_id,
-                                                    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to,
-                                                    bool for_draft);
-
-  Result<td_api::object_ptr<td_api::message>> send_message(
-      DialogId dialog_id, const MessageId top_thread_message_id,
-      td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, tl_object_ptr<td_api::messageSendOptions> &&options,
-      tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-      tl_object_ptr<td_api::InputMessageContent> &&input_message_content) TD_WARN_UNUSED_RESULT;
-
-  Result<td_api::object_ptr<td_api::messages>> send_message_group(
-      DialogId dialog_id, const MessageId top_thread_message_id,
-      td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, tl_object_ptr<td_api::messageSendOptions> &&options,
-      vector<tl_object_ptr<td_api::InputMessageContent>> &&input_message_contents) TD_WARN_UNUSED_RESULT;
-
-  Result<MessageId> send_bot_start_message(UserId bot_user_id, DialogId dialog_id,
-                                           const string &parameter) TD_WARN_UNUSED_RESULT;
-
-  Result<td_api::object_ptr<td_api::message>> send_inline_query_result_message(
-      DialogId dialog_id, const MessageId top_thread_message_id,
-      td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, tl_object_ptr<td_api::messageSendOptions> &&options,
-      int64 query_id, const string &result_id, bool hide_via_bot) TD_WARN_UNUSED_RESULT;
-
-  Result<td_api::object_ptr<td_api::messages>> forward_messages(
-      DialogId to_dialog_id, MessageId top_thread_message_id, DialogId from_dialog_id, vector<MessageId> message_ids,
-      tl_object_ptr<td_api::messageSendOptions> &&options, bool in_game_share, int32 new_video_start_timestamp,
-      vector<MessageCopyOptions> &&copy_options) TD_WARN_UNUSED_RESULT;
-
-  Result<td_api::object_ptr<td_api::messages>> send_quick_reply_shortcut_messages(
-      DialogId dialog_id, QuickReplyShortcutId shortcut_id, int32 sending_id) TD_WARN_UNUSED_RESULT;
-
-  Result<vector<MessageId>> resend_messages(DialogId dialog_id, vector<MessageId> message_ids,
-                                            td_api::object_ptr<td_api::inputTextQuote> &&quote,
-                                            int64 paid_message_star_count) TD_WARN_UNUSED_RESULT;
-
-  void set_dialog_message_ttl(DialogId dialog_id, int32 ttl, Promise<Unit> &&promise);
-
-  void share_dialogs_with_bot(MessageFullId message_full_id, int32 button_id, vector<DialogId> shared_dialog_ids,
-                              bool expect_user, bool only_check, Promise<Unit> &&promise);
-
-  Result<MessageId> add_local_message(
-      DialogId dialog_id, td_api::object_ptr<td_api::MessageSender> &&sender,
-      td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, bool disable_notification,
-      tl_object_ptr<td_api::InputMessageContent> &&input_message_content) TD_WARN_UNUSED_RESULT;
-
-  void edit_message_text(MessageFullId message_full_id, tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                         tl_object_ptr<td_api::InputMessageContent> &&input_message_content, Promise<Unit> &&promise);
-
-  void edit_message_live_location(MessageFullId message_full_id, tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                  tl_object_ptr<td_api::location> &&input_location, int32 live_period, int32 heading,
-                                  int32 proximity_alert_radius, Promise<Unit> &&promise);
-
-  void edit_message_media(MessageFullId message_full_id, tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                          tl_object_ptr<td_api::InputMessageContent> &&input_message_content, Promise<Unit> &&promise);
-
-  void edit_message_caption(MessageFullId message_full_id, tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                            tl_object_ptr<td_api::formattedText> &&input_caption, bool invert_media,
-                            Promise<Unit> &&promise);
-
-  void edit_message_reply_markup(MessageFullId message_full_id, tl_object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                                 Promise<Unit> &&promise);
-
-  void edit_message_scheduling_state(MessageFullId message_full_id,
-                                     td_api::object_ptr<td_api::MessageSchedulingState> &&scheduling_state,
-                                     Promise<Unit> &&promise);
-
-  void set_message_fact_check(MessageFullId message_full_id, td_api::object_ptr<td_api::formattedText> &&text,
-                              Promise<Unit> &&promise);
-
-  void get_dialog_filter_dialog_count(td_api::object_ptr<td_api::chatFolder> filter, Promise<int32> &&promise);
-
-  void add_dialog_list_for_dialog_filter(DialogFilterId dialog_filter_id);
-
-  void edit_dialog_list_for_dialog_filter(unique_ptr<DialogFilter> &old_dialog_filter,
-                                          unique_ptr<DialogFilter> new_dialog_filter, bool &disable_get_dialog_filter,
-                                          const char *source);
-
-  void delete_dialog_list_for_dialog_filter(DialogFilterId dialog_filter_id, const char *source);
-
-  vector<DialogListId> get_dialog_lists_to_add_dialog(DialogId dialog_id);
-
-  void add_dialog_to_list(DialogId dialog_id, DialogListId dialog_list_id, Promise<Unit> &&promise);
-
-  void set_active_reactions(vector<ReactionType> active_reaction_types);
-
-  void set_dialog_available_reactions(DialogId dialog_id,
-                                      td_api::object_ptr<td_api::ChatAvailableReactions> &&available_reactions_ptr,
-                                      Promise<Unit> &&promise);
-
-  void set_dialog_theme(DialogId dialog_id, const string &theme_name, Promise<Unit> &&promise);
-
-  void pin_dialog_message(BusinessConnectionId business_connection_id, DialogId dialog_id, MessageId message_id,
-                          bool disable_notification, bool only_for_self, bool is_unpin, Promise<Unit> &&promise);
-
-  void unpin_all_dialog_messages(DialogId dialog_id, MessageId top_thread_message_id, Promise<Unit> &&promise);
-
-  bool have_dialog(DialogId dialog_id) const;
-  bool have_dialog_force(DialogId dialog_id, const char *source);
-
-  void reload_dialog_notification_settings(DialogId dialog_id, Promise<Unit> &&promise, const char *source);
-
-  bool load_dialog(DialogId dialog_id, int left_tries, Promise<Unit> &&promise);
-
-  void load_dialogs(vector<DialogId> dialog_ids, Promise<vector<DialogId>> &&promise);
-
-  Result<DialogDate> get_dialog_list_last_date(DialogListId dialog_list_id);
-
-  vector<DialogId> get_dialogs(DialogListId dialog_list_id, DialogDate offset, int32 limit, bool exact_limit,
-                               bool force, Promise<Unit> &&promise);
-
-  void get_dialogs_from_list(DialogListId dialog_list_id, int32 limit,
-                             Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void read_all_dialogs_from_list(DialogListId dialog_list_id, Promise<Unit> &&promise, bool is_recursive = false);
-
-  std::pair<int32, vector<DialogId>> search_dialogs(const string &query, int32 limit, Promise<Unit> &&promise);
-
-  vector<DialogId> sort_dialogs_by_order(const vector<DialogId> &dialog_ids, int32 limit) const;
-
-  void block_message_sender_from_replies(MessageId message_id, bool need_delete_message, bool need_delete_all_messages,
-                                         bool report_spam, Promise<Unit> &&promise);
-
-  bool is_dialog_blocked(DialogId dialog_id) const;
-
-  static Status can_report_message(MessageId message_id);
-
-  bool can_share_message_in_story(MessageFullId message_full_id);
-
-  Status can_get_message_viewers(MessageFullId message_full_id) TD_WARN_UNUSED_RESULT;
-
-  bool can_get_message_statistics(MessageFullId message_full_id);
-
-  DialogId get_dialog_message_sender(MessageFullId message_full_id);
-
-  bool have_message_force(MessageFullId message_full_id, const char *source);
-
-  void get_message(MessageFullId message_full_id, Promise<Unit> &&promise);
-
-  MessageFullId get_replied_message(DialogId dialog_id, MessageId message_id, bool force, Promise<Unit> &&promise);
-
-  MessageId get_dialog_pinned_message(DialogId dialog_id, Promise<Unit> &&promise);
-
-  void get_callback_query_message(DialogId dialog_id, MessageId message_id, int64 callback_query_id,
-                                  Promise<Unit> &&promise);
-
-  void get_messages(DialogId dialog_id, const vector<MessageId> &message_ids, Promise<Unit> &&promise);
-
-  void get_message_from_server(MessageFullId message_full_id, Promise<Unit> &&promise, const char *source,
-                               tl_object_ptr<telegram_api::InputMessage> input_message = nullptr);
-
-  void get_messages_from_server(vector<MessageFullId> &&message_ids, Promise<Unit> &&promise, const char *source,
-                                tl_object_ptr<telegram_api::InputMessage> input_message = nullptr);
-
-  void get_message_properties(DialogId dialog_id, MessageId message_id,
-                              Promise<td_api::object_ptr<td_api::messageProperties>> &&promise);
-
-  void get_message_thread(DialogId dialog_id, MessageId message_id, Promise<MessageThreadInfo> &&promise);
-
-  td_api::object_ptr<td_api::messageThreadInfo> get_message_thread_info_object(const MessageThreadInfo &info);
-
-  void get_message_read_date(MessageFullId message_full_id,
-                             Promise<td_api::object_ptr<td_api::MessageReadDate>> &&promise);
-
-  void translate_message_text(MessageFullId message_full_id, const string &to_language_code,
-                              Promise<td_api::object_ptr<td_api::formattedText>> &&promise);
-
-  bool is_message_edited_recently(MessageFullId message_full_id, int32 seconds);
-
-  struct ReportDialogFromActionBar {
-    bool know_action_bar_ = false;
-    bool is_reported_ = false;
-  };
-  ReportDialogFromActionBar report_dialog_from_action_bar(
-      DialogId dialog_id, Promise<td_api::object_ptr<td_api::ReportChatResult>> &promise);
-
-  bool is_deleted_secret_chat(DialogId dialog_id) const;
-
-  Result<std::pair<string, bool>> get_message_link(MessageFullId message_full_id, int32 media_timestamp, bool for_group,
-                                                   bool in_message_thread);
-
-  string get_message_embedding_code(MessageFullId message_full_id, bool for_group, Promise<Unit> &&promise);
-
-  void on_get_public_message_link(MessageFullId message_full_id, bool for_group, string url, string html);
-
-  void get_message_link_info(Slice url, Promise<MessageLinkInfo> &&promise);
-
-  td_api::object_ptr<td_api::messageLinkInfo> get_message_link_info_object(const MessageLinkInfo &info) const;
-
-  bool is_dialog_in_dialog_list(DialogId dialog_id) const;
-
-  Status can_add_dialog_to_filter(DialogId dialog_id);
-
-  Status delete_dialog_reply_markup(DialogId dialog_id, MessageId message_id) TD_WARN_UNUSED_RESULT;
-
-  Status set_dialog_draft_message(DialogId dialog_id, MessageId top_thread_message_id,
-                                  tl_object_ptr<td_api::draftMessage> &&draft_message) TD_WARN_UNUSED_RESULT;
-
-  void clear_all_draft_messages(bool exclude_secret_chats, Promise<Unit> &&promise);
-
-  Status toggle_dialog_is_pinned(DialogListId dialog_list_id, DialogId dialog_id, bool is_pinned) TD_WARN_UNUSED_RESULT;
-
-  Status toggle_dialog_view_as_messages(DialogId dialog_id, bool view_as_messages) TD_WARN_UNUSED_RESULT;
-
-  Status toggle_dialog_is_marked_as_unread(DialogId dialog_id, bool is_marked_as_unread) TD_WARN_UNUSED_RESULT;
-
-  Status toggle_dialog_is_translatable(DialogId dialog_id, bool is_translatable) TD_WARN_UNUSED_RESULT;
-
-  Status set_message_sender_block_list(const td_api::object_ptr<td_api::MessageSender> &sender,
-                                       const td_api::object_ptr<td_api::BlockList> &block_list) TD_WARN_UNUSED_RESULT;
-
-  Status toggle_dialog_silent_send_message(DialogId dialog_id, bool silent_send_message) TD_WARN_UNUSED_RESULT;
-
-  Status set_pinned_dialogs(DialogListId dialog_list_id, vector<DialogId> dialog_ids) TD_WARN_UNUSED_RESULT;
-
-  Status set_dialog_client_data(DialogId dialog_id, string &&client_data) TD_WARN_UNUSED_RESULT;
-
-  void create_dialog(DialogId dialog_id, bool force, Promise<Unit> &&promise);
-
-  bool is_dialog_opened(DialogId dialog_id) const;
-
-  Status open_dialog(DialogId dialog_id) TD_WARN_UNUSED_RESULT;
-
-  Status close_dialog(DialogId dialog_id) TD_WARN_UNUSED_RESULT;
-
-  Status view_messages(DialogId dialog_id, vector<MessageId> message_ids, MessageSource source,
-                       bool force_read) TD_WARN_UNUSED_RESULT;
-
-  Status open_message_content(MessageFullId message_full_id) TD_WARN_UNUSED_RESULT;
-
-  void click_animated_emoji_message(MessageFullId message_full_id,
-                                    Promise<td_api::object_ptr<td_api::sticker>> &&promise);
-
-  StoryNotificationSettings get_story_notification_settings(DialogId dialog_id);
-
-  vector<DialogId> get_dialog_notification_settings_exceptions(NotificationSettingsScope scope, bool filter_scope,
-                                                               bool compare_sound, bool force, Promise<Unit> &&promise);
-
-  Status set_dialog_notification_settings(DialogId dialog_id,
-                                          tl_object_ptr<td_api::chatNotificationSettings> &&notification_settings)
-      TD_WARN_UNUSED_RESULT;
-
-  void reset_all_dialog_notification_settings();
-
-  void update_story_max_reply_media_timestamp_in_replied_messages(StoryFullId story_full_id);
-
-  int64 get_chat_id_object(DialogId dialog_id, const char *source) const;
-
-  td_api::object_ptr<td_api::chat> get_chat_object(DialogId dialog_id, const char *source);
-
-  td_api::object_ptr<td_api::draftMessage> get_my_dialog_draft_message_object() const;
-
-  tl_object_ptr<td_api::messages> get_dialog_history(DialogId dialog_id, MessageId from_message_id, int32 offset,
-                                                     int32 limit, int left_tries, bool only_local,
-                                                     Promise<Unit> &&promise);
-
-  std::pair<DialogId, vector<MessageId>> get_message_thread_history(DialogId dialog_id, MessageId message_id,
-                                                                    MessageId from_message_id, int32 offset,
-                                                                    int32 limit, int64 &random_id,
-                                                                    Promise<Unit> &&promise);
-
-  void get_dialog_message_calendar(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                   MessageId from_message_id, MessageSearchFilter filter,
-                                   Promise<td_api::object_ptr<td_api::messageCalendar>> &&promise);
-
-  struct FoundDialogMessages {
-    vector<MessageId> message_ids;
-    MessageId next_from_message_id;
-    int32 total_count = 0;
-  };
-
-  td_api::object_ptr<td_api::foundChatMessages> get_found_chat_messages_object(
-      DialogId dialog_id, const FoundDialogMessages &found_dialog_messages, const char *source);
-
-  FoundDialogMessages search_dialog_messages(DialogId dialog_id, const string &query,
-                                             const td_api::object_ptr<td_api::MessageSender> &sender,
-                                             MessageId from_message_id, int32 offset, int32 limit,
-                                             MessageSearchFilter filter, MessageId top_thread_message_id,
-                                             SavedMessagesTopicId saved_messages_topic_id, const ReactionType &tag,
-                                             int64 &random_id, bool use_db, Promise<Unit> &&promise);
-
-  struct FoundMessages {
-    vector<MessageFullId> message_full_ids;
-    string next_offset;
-    int32 total_count = 0;
-  };
-
-  td_api::object_ptr<td_api::foundMessages> get_found_messages_object(const FoundMessages &found_messages,
-                                                                      const char *source);
-
-  void offline_search_messages(DialogId dialog_id, const string &query, string offset, int32 limit,
-                               MessageSearchFilter filter,
-                               Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void search_call_messages(const string &offset, int32 limit, bool only_missed,
-                            Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void load_active_live_location_messages(Promise<Unit> &&promise);
-
-  void get_dialog_message_by_date(DialogId dialog_id, int32 date,
-                                  Promise<td_api::object_ptr<td_api::message>> &&promise);
-
-  void on_get_dialog_message_by_date(DialogId dialog_id, int32 date,
-                                     vector<telegram_api::object_ptr<telegram_api::Message>> &&messages,
-                                     Promise<td_api::object_ptr<td_api::message>> &&promise);
-
-  void get_dialog_sparse_message_positions(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                           MessageSearchFilter filter, MessageId from_message_id, int32 limit,
-                                           Promise<td_api::object_ptr<td_api::messagePositions>> &&promise);
-
-  static void on_get_dialog_sparse_message_positions(
-      DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id, MessageSearchFilter filter,
-      telegram_api::object_ptr<telegram_api::messages_searchResultsPositions> positions,
-      Promise<td_api::object_ptr<td_api::messagePositions>> &&promise);
-
-  void get_dialog_message_count(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                MessageSearchFilter filter, bool return_local, Promise<int32> &&promise);
-
-  void get_dialog_message_position(MessageFullId message_full_id, MessageSearchFilter filter,
-                                   MessageId top_thread_message_id, SavedMessagesTopicId saved_messages_topic_id,
-                                   Promise<int32> &&promise);
-
-  vector<MessageId> get_dialog_scheduled_messages(DialogId dialog_id, bool force, bool ignore_result,
-                                                  Promise<Unit> &&promise);
-
-  Result<td_api::object_ptr<td_api::availableReactions>> get_message_available_reactions(MessageFullId message_full_id,
-                                                                                         int32 row_size);
-
-  void add_message_reaction(MessageFullId message_full_id, ReactionType reaction_type, bool is_big, bool add_to_recent,
-                            Promise<Unit> &&promise);
-
-  void remove_message_reaction(MessageFullId message_full_id, ReactionType reaction_type, Promise<Unit> &&promise);
-
-  void add_paid_message_reaction(MessageFullId message_full_id, int64 star_count,
-                                 const td_api::object_ptr<td_api::PaidReactionType> &type, Promise<Unit> &&promise);
-
-  void commit_paid_message_reactions(MessageFullId message_full_id, Promise<Unit> &&promise);
-
-  void remove_paid_message_reactions(MessageFullId message_full_id, Promise<Unit> &&promise);
-
-  void set_paid_message_reaction_type(MessageFullId message_full_id,
-                                      const td_api::object_ptr<td_api::PaidReactionType> &type,
-                                      Promise<Unit> &&promise);
-
-  td_api::object_ptr<td_api::message> get_dialog_event_log_message_object(
-      DialogId dialog_id, tl_object_ptr<telegram_api::Message> &&message, DialogId &sender_dialog_id);
-
-  td_api::object_ptr<td_api::businessMessage> get_business_message_object(
-      telegram_api::object_ptr<telegram_api::Message> &&message,
-      telegram_api::object_ptr<telegram_api::Message> &&reply_to_message);
-
-  td_api::object_ptr<td_api::message> get_message_object(MessageFullId message_full_id, const char *source);
-
-  td_api::object_ptr<td_api::messages> get_messages_object(int32 total_count, DialogId dialog_id,
-                                                           const vector<MessageId> &message_ids, bool skip_not_found,
-                                                           const char *source);
-
-  td_api::object_ptr<td_api::messages> get_messages_object(int32 total_count,
-                                                           const vector<MessageFullId> &message_full_ids,
-                                                           bool skip_not_found, const char *source);
-
-  void process_pts_update(tl_object_ptr<telegram_api::Update> &&update_ptr);
-
-  void skip_old_pending_pts_update(tl_object_ptr<telegram_api::Update> &&update, int32 new_pts, int32 old_pts,
-                                   int32 pts_count, const char *source);
-
-  void add_pending_channel_update(DialogId dialog_id, tl_object_ptr<telegram_api::Update> &&update, int32 new_pts,
-                                  int32 pts_count, Promise<Unit> &&promise, const char *source,
-                                  bool is_postponed_update = false);
-
-  bool is_old_channel_update(DialogId dialog_id, int32 new_pts);
-
-  void on_dialog_bots_updated(DialogId dialog_id, vector<UserId> bot_user_ids, bool from_database);
-
-  void on_dialog_photo_updated(DialogId dialog_id);
-  void on_dialog_accent_colors_updated(DialogId dialog_id);
-  void on_dialog_title_updated(DialogId dialog_id);
-  void on_dialog_emoji_status_updated(DialogId dialog_id);
-  void on_dialog_usernames_updated(DialogId dialog_id, const Usernames &old_usernames, const Usernames &new_usernames);
-  void on_dialog_default_permissions_updated(DialogId dialog_id);
-  void on_dialog_has_protected_content_updated(DialogId dialog_id);
-  void on_dialog_access_updated(DialogId dialog_id);
-
-  void on_dialog_user_is_contact_updated(DialogId dialog_id, bool is_contact);
-  void on_dialog_user_is_deleted_updated(DialogId dialog_id, bool is_deleted);
-
-  void on_dialog_linked_channel_updated(DialogId dialog_id, ChannelId old_linked_channel_id,
-                                        ChannelId new_linked_channel_id) const;
-
-  void drop_dialog_pending_join_requests(DialogId dialog_id);
-
-  void on_update_notification_scope_is_muted(NotificationSettingsScope scope, bool is_muted);
-
-  void on_update_dialog_notify_settings(DialogId dialog_id,
-                                        tl_object_ptr<telegram_api::peerNotifySettings> &&peer_notify_settings,
-                                        const char *source);
-
-  void on_update_dialog_available_reactions(DialogId dialog_id,
-                                            telegram_api::object_ptr<telegram_api::ChatReactions> &&available_reactions,
-                                            int32 reactions_limit, bool paid_reactions_available);
-
-  void hide_dialog_action_bar(DialogId dialog_id);
-
-  void remove_dialog_action_bar(DialogId dialog_id, Promise<Unit> &&promise);
-
-  void reget_dialog_action_bar(DialogId dialog_id, const char *source, bool is_repair = true);
-
-  void hide_all_business_bot_manager_bars();
-
-  void on_get_peer_settings(DialogId dialog_id, tl_object_ptr<telegram_api::peerSettings> &&peer_settings,
-                            bool ignore_privacy_exception = false);
-
-  void on_authorization_success();
-
-  void before_get_difference();
-
-  void after_get_difference();
-
-  bool on_get_message_error(DialogId dialog_id, MessageId message_id, const Status &status, const char *source);
-
-  void on_send_message_get_quick_ack(int64 random_id);
-
-  void check_send_message_result(int64 random_id, DialogId dialog_id, const telegram_api::Updates *updates_ptr,
-                                 const char *source);
-
-  MessageFullId on_send_message_success(int64 random_id, MessageId new_message_id, int32 date, int32 ttl_period,
-                                        FileId new_file_id, const char *source);
-
-  void on_send_message_file_error(int64 random_id, size_t pos, vector<int> &&bad_parts);
-
-  void on_send_media_group_file_reference_error(DialogId dialog_id, vector<int64> random_ids);
-
-  void on_send_message_fail(int64 random_id, Status error);
-
-  void on_upload_message_media_success(DialogId dialog_id, MessageId message_id, int32 media_pos,
-                                       telegram_api::object_ptr<telegram_api::MessageMedia> &&media);
-
-  void on_upload_message_media_file_parts_missing(DialogId dialog_id, MessageId message_id, int32 media_pos,
-                                                  vector<int> &&bad_parts);
-
-  void on_upload_message_media_fail(DialogId dialog_id, MessageId message_id, int32 media_pos, Status error);
-
-  void on_create_new_dialog(telegram_api::object_ptr<telegram_api::Updates> &&updates,
-                            MissingInvitees &&missing_invitees,
-                            Promise<td_api::object_ptr<td_api::createdBasicGroupChat>> &&chat_promise,
-                            Promise<td_api::object_ptr<td_api::chat>> &&channel_promise);
-
-  void on_get_channel_difference(DialogId dialog_id, int32 request_pts, int32 request_limit,
-                                 tl_object_ptr<telegram_api::updates_ChannelDifference> &&difference_ptr,
-                                 Status &&status);
-
-  void try_update_dialog_pos(DialogId dialog_id);
-
-  void force_create_dialog(DialogId dialog_id, const char *source, bool expect_no_access = false,
-                           bool force_update_dialog_pos = false);
-
-  void on_get_dialog_query_finished(DialogId dialog_id, Status &&status);
-
-  void set_sponsored_dialog(DialogId dialog_id, DialogSource source);
-
-  FileSourceId get_message_file_source_id(MessageFullId message_full_id, bool force = false);
-
-  struct MessagePushNotificationInfo {
-    NotificationGroupId group_id;
-    NotificationGroupType group_type = NotificationGroupType::Calls;
-    DialogId settings_dialog_id;
-  };
-  Result<MessagePushNotificationInfo> get_message_push_notification_info(DialogId dialog_id, MessageId message_id,
-                                                                         int64 random_id, UserId sender_user_id,
-                                                                         DialogId sender_dialog_id, int32 date,
-                                                                         bool is_from_scheduled, bool contains_mention,
-                                                                         bool is_pinned, bool is_from_binlog);
-
-  NotificationGroupFromDatabase get_message_notification_group_force(NotificationGroupId group_id);
-
-  vector<NotificationGroupKey> get_message_notification_group_keys_from_database(NotificationGroupKey from_group_key,
-                                                                                 int32 limit);
-
-  void get_message_notifications_from_database(DialogId dialog_id, NotificationGroupId group_id,
-                                               NotificationId from_notification_id, MessageId from_message_id,
-                                               int32 limit, Promise<vector<Notification>> promise);
-
-  void remove_message_notification(DialogId dialog_id, NotificationGroupId group_id, NotificationId notification_id);
-
-  void remove_message_notifications_by_message_ids(DialogId dialog_id, const vector<MessageId> &message_ids);
-
-  void remove_message_notifications(DialogId dialog_id, NotificationGroupId group_id,
-                                    NotificationId max_notification_id, MessageId max_message_id);
-
-  void remove_scope_pinned_message_notifications(NotificationSettingsScope scope);
-
-  void on_update_scope_mention_notifications(NotificationSettingsScope scope, bool disable_mention_notifications);
-
-  void on_binlog_events(vector<BinlogEvent> &&events);
-
-  void set_poll_answer(MessageFullId message_full_id, vector<int32> &&option_ids, Promise<Unit> &&promise);
-
-  void get_poll_voters(MessageFullId message_full_id, int32 option_id, int32 offset, int32 limit,
-                       Promise<td_api::object_ptr<td_api::messageSenders>> &&promise);
-
-  void stop_poll(MessageFullId message_full_id, td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup,
-                 Promise<Unit> &&promise);
-
-  int64 get_message_random_id(MessageFullId message_full_id);
-
-  void finish_gift_upgrade(MessageFullId message_full_id,
-                           Promise<td_api::object_ptr<td_api::upgradeGiftResult>> &&promise);
-
-  Result<string> get_login_button_url(MessageFullId message_full_id, int64 button_id);
-
-  struct InvoiceMessageInfo {
-    ServerMessageId server_message_id_;
-    int64 star_count_ = 0;
-  };
-  Result<InvoiceMessageInfo> get_invoice_message_info(MessageFullId message_full_id);
-
-  Result<ServerMessageId> get_payment_successful_message_id(MessageFullId message_full_id);
-
-  Result<ServerMessageId> get_giveaway_message_id(MessageFullId message_full_id);
-
-  bool can_set_game_score(MessageFullId message_full_id) const;
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
-  void add_message_file_to_downloads(MessageFullId message_full_id, FileId file_id, int32 priority,
-                                     Promise<td_api::object_ptr<td_api::file>> promise);
-
-  void get_message_file_search_text(MessageFullId message_full_id, string unique_file_id, Promise<string> promise);
-
- private:
-  class PendingPtsUpdate {
-   public:
-    tl_object_ptr<telegram_api::Update> update;
-    int32 pts;
-    int32 pts_count;
-    Promise<Unit> promise;
-
-    PendingPtsUpdate(tl_object_ptr<telegram_api::Update> &&update, int32 pts, int32 pts_count, Promise<Unit> &&promise)
-        : update(std::move(update)), pts(pts), pts_count(pts_count), promise(std::move(promise)) {
-    }
-  };
-
-  struct MessageInfo {
-    DialogId dialog_id;
-    MessageId message_id;
-    UserId sender_user_id;
-    DialogId sender_dialog_id;
-    SavedMessagesTopicId saved_messages_topic_id;
-    int32 date = 0;
-    int32 ttl_period = 0;
-    MessageSelfDestructType ttl;
-    bool disable_web_page_preview = false;
-    int64 random_id = 0;
-    tl_object_ptr<telegram_api::messageFwdHeader> forward_header;
-    MessageReplyHeader reply_header;
-    UserId via_bot_user_id;
-    UserId via_business_bot_user_id;
-    int32 view_count = 0;
-    int32 forward_count = 0;
-    tl_object_ptr<telegram_api::messageReplies> reply_info;
-    tl_object_ptr<telegram_api::messageReactions> reactions;
-    tl_object_ptr<telegram_api::factCheck> fact_check;
-    int32 sender_boost_count = 0;
-    int32 edit_date = 0;
-    vector<RestrictionReason> restriction_reasons;
-    string author_signature;
-    int64 media_album_id = 0;
-    MessageEffectId effect_id;
-    int32 report_delivery_until_date = 0;
-    int64 paid_message_star_count = 0;
-    bool is_outgoing = false;
-    bool is_silent = false;
-    bool is_channel_post = false;
-    bool is_legacy = false;
-    bool hide_edit_date = false;
-    bool is_from_scheduled = false;
-    bool is_from_offline = false;
-    bool is_pinned = false;
-    bool noforwards = false;
-    bool has_mention = false;
-    bool has_unread_content = false;
-    bool invert_media = false;
-    bool video_processing_pending = false;
-    bool reactions_are_possible = false;
-
-    unique_ptr<MessageContent> content;
-    tl_object_ptr<telegram_api::ReplyMarkup> reply_markup;
-  };
-
-  // Do not forget to update MessagesManager::update_message and all make_unique<Message> when this class is changed
-  struct Message final : public ListNode {
-    MessageId message_id;
-    UserId sender_user_id;
-    DialogId sender_dialog_id;
-    SavedMessagesTopicId saved_messages_topic_id;
-    int32 date = 0;
-    int32 edit_date = 0;
-    int32 send_date = 0;
-    int32 sending_id = 0;  // for yet unsent messages
-    int32 sender_boost_count = 0;
-    int64 paid_message_star_count = 0;
-
-    int64 random_id = 0;
-
-    unique_ptr<MessageForwardInfo> forward_info;
-
-    RepliedMessageInfo replied_message_info;
-    StoryFullId reply_to_story_full_id;
-
-    MessageId top_thread_message_id;
-    MessageId linked_top_thread_message_id;
-    vector<MessageId> local_thread_message_ids;
-
-    DialogId initial_sender_dialog_id;                       // for send_message
-    MessageId initial_top_thread_message_id;                 // for send_message
-    MessageInputReplyTo input_reply_to;                      // for send_message
-    int64 reply_to_random_id = 0;                            // for send_message
-    string send_emoji;                                       // for send_message
-    mutable vector<FileUploadId> file_upload_ids;            // for send_message
-    mutable vector<FileUploadId> thumbnail_file_upload_ids;  // for send_message
-
-    UserId via_bot_user_id;
-    UserId via_business_bot_user_id;
-
-    vector<RestrictionReason> restriction_reasons;
-
-    string author_signature;
-
-    bool is_channel_post = false;
-    bool is_topic_message = false;
-    bool is_outgoing = false;
-    bool is_failed_to_send = false;
-    bool disable_notification = false;
-    bool contains_mention = false;
-    bool contains_unread_mention = false;
-    bool hide_edit_date = false;
-    bool had_reply_markup = false;  // had non-inline reply markup?
-    bool had_forward_info = false;
-    bool is_content_secret = false;  // must be shown only while tapped
-    bool is_mention_notification_disabled = false;
-    bool is_from_scheduled = false;
-    bool is_from_offline = false;
-    bool is_pinned = false;
-    bool are_media_timestamp_entities_found = false;
-    bool noforwards = false;
-    bool invert_media = false;
-    bool disable_web_page_preview = false;
-    bool video_processing_pending = false;
-    bool reactions_are_possible = false;
-
-    bool has_explicit_sender = false;       // for send_message
-    bool is_copy = false;                   // for send_message
-    bool from_background = false;           // for send_message
-    bool allow_paid = false;                // for send_message
-    bool update_stickersets_order = false;  // for send_message
-    bool clear_draft = false;               // for send_message
-    bool in_game_share = false;             // for send_message
-    bool hide_via_bot = false;              // for resend_message
-    bool is_bot_start_message = false;      // for resend_message
-    int32 new_video_start_timestamp = 0;    // for send_message
-
-    DialogId real_forward_from_dialog_id;    // for resend_message
-    MessageId real_forward_from_message_id;  // for resend_message
-
-    NotificationId notification_id;
-    NotificationId removed_notification_id;
-
-    int32 max_reply_media_timestamp = -1;
-    int32 max_own_media_timestamp = -2;  // to update replied messages on the first load
-
-    int32 view_count = 0;
-    int32 forward_count = 0;
-    MessageReplyInfo reply_info;
-    unique_ptr<MessageReactions> reactions;
-    unique_ptr<FactCheck> fact_check;
-    unique_ptr<DraftMessage> thread_draft_message;
-    uint32 available_reactions_generation = 0;
-    int32 interaction_info_update_date = 0;
-    uint32 history_generation = 0;
-
-    int32 legacy_layer = 0;
-
-    int32 send_error_code = 0;
-    string send_error_message;
-    double try_resend_at = 0;
-
-    int32 ttl_period = 0;         // counted from message send date
-    MessageSelfDestructType ttl;  // counted from message content view date
-    double ttl_expires_at = 0;    // only for TTL
-
-    int64 media_album_id = 0;
-    MessageEffectId effect_id;
-
-    unique_ptr<MessageContent> content;
-
-    unique_ptr<ReplyMarkup> reply_markup;
-
-    int32 edited_schedule_date = 0;
-    uint64 edit_generation = 0;
-
-    int32 last_edit_pts = 0;
-
-    const char *debug_source = "null";
-
-    mutable int32 last_access_date = 0;
-    mutable bool is_update_sent = false;  // whether the message is known to the app
-
-    mutable uint64 send_message_log_event_id = 0;
-
-    mutable NetQueryRef send_query_ref;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-
-    Message() = default;
-    Message(const Message &) = delete;
-    Message &operator=(const Message &) = delete;
-    Message(Message &&) = delete;
-    Message &operator=(Message &&) = delete;
-    ~Message();
-  };
-
-  struct EditedMessage {
-    bool invert_media_ = false;
-    unique_ptr<MessageContent> content_;
-    mutable vector<FileUploadId> file_upload_ids_;
-    mutable vector<FileUploadId> thumbnail_file_upload_ids_;
-    unique_ptr<ReplyMarkup> reply_markup_;
-    Promise<Unit> promise_;
-  };
-
-  struct DialogScheduledMessages {
-    FlatHashMap<ScheduledServerMessageId, int32, ScheduledServerMessageIdHash> scheduled_message_date_;
-
-    FlatHashMap<int32, MessageId> last_assigned_scheduled_message_id_;  // date -> message_id
-
-    FlatHashSet<ScheduledServerMessageId, ScheduledServerMessageIdHash> deleted_scheduled_server_message_ids_;
-
-    FlatHashMap<MessageId, unique_ptr<Message>, MessageIdHash> scheduled_messages_;
-  };
-
-  struct NotificationInfo {
-    NotificationGroupInfo message_notification_group_;
-    NotificationGroupInfo mention_notification_group_;
-    NotificationId new_secret_chat_notification_id_;  // secret chats only
-    MessageId pinned_message_notification_message_id_;
-    MessageId max_push_notification_message_id_;
-
-    vector<std::pair<DialogId, MessageId>> pending_new_message_notifications_;
-    vector<std::pair<DialogId, MessageId>> pending_new_mention_notifications_;
-
-    FlatHashMap<NotificationId, MessageId, NotificationIdHash> notification_id_to_message_id_;
-  };
-
-  struct Dialog {
-    DialogId dialog_id;
-    MessageId last_new_message_id;  // identifier of the last known server message received from update, there should be
-                                    // no server messages after it
-    MessageId last_message_id;      // identifier of the message after which currently there are no messages, i.e. a
-                                    // message without a gap after it, memory only
-    MessageId first_database_message_id;  // identifier of the first message in the database, needed
-                                          // until there are no gaps in the database
-    MessageId last_database_message_id;   // identifier of the last local or server message, if last_database_message_id
-                                          // is known and last_message_id is known, then last_database_message_id <=
-                                          // last_message_id
-
-    std::array<MessageId, message_search_filter_count()> first_database_message_id_by_index;
-    // use struct Count?
-    std::array<int32, message_search_filter_count()> message_count_by_index{{0}};
-
-    int32 server_unread_count = 0;
-    int32 local_unread_count = 0;
-    int32 unread_mention_count = 0;
-    int32 unread_reaction_count = 0;
-    int32 last_read_inbox_message_date = 0;  // secret chats only
-    MessageId last_read_inbox_message_id;
-    MessageId last_read_outbox_message_id;
-    MessageId last_pinned_message_id;
-    MessageId reply_markup_message_id;
-    DialogNotificationSettings notification_settings;
-    ChatReactions available_reactions;
-    uint32 available_reactions_generation = 0;
-    MessageTtl message_ttl;
-    unique_ptr<DraftMessage> draft_message;
-    unique_ptr<DialogActionBar> action_bar;
-    unique_ptr<BusinessBotManageBar> business_bot_manage_bar;
-    LogEventIdWithGeneration save_draft_message_log_event_id;
-    LogEventIdWithGeneration save_notification_settings_log_event_id;
-    LogEventIdWithGeneration set_folder_id_log_event_id;
-    InputGroupCallId active_group_call_id;
-    InputGroupCallId expected_active_group_call_id;
-    DialogId default_join_group_call_as_dialog_id;
-    DialogId default_send_message_as_dialog_id;
-    BackgroundInfo background_info;
-    string theme_name;
-    int32 pending_join_request_count = 0;
-    vector<UserId> pending_join_request_user_ids;
-    int32 have_full_history_source = 0;
-    int32 unload_dialog_delay_seed = 0;
-    int64 last_media_album_id = 0;
-    uint32 history_generation = 0;
-    uint32 open_count = 0;
-
-    unique_ptr<NotificationInfo> notification_info;
-
-    FolderId folder_id;
-    vector<DialogListId> dialog_list_ids;  // TODO replace with mask
-
-    MessageId
-        last_read_all_mentions_message_id;  // all mentions with a message identifier not greater than it are implicitly read
-    MessageId
-        max_unavailable_message_id;  // maximum unavailable message identifier for dialogs with cleared/unavailable history
-
-    int64 order = DEFAULT_ORDER;
-    int64 pending_order = DEFAULT_ORDER;
-    MessageId deleted_last_message_id;
-    int32 delete_last_message_date = 0;
-    int32 last_clear_history_date = 0;
-    MessageId last_clear_history_message_id;
-    MessageId last_edited_message_id;
-    uint32 scheduled_messages_sync_generation = 0;
-    uint32 last_repair_scheduled_messages_generation = 0;
-
-    MessageId max_added_message_id;
-    MessageId being_added_message_id;
-    MessageId being_updated_last_new_message_id;
-    MessageId being_updated_last_database_message_id;
-    MessageId being_deleted_message_id;
-
-    bool has_contact_registered_message = false;
-
-    bool is_last_message_deleted_locally = false;
-
-    bool need_repair_action_bar = false;
-    bool know_action_bar = false;
-    bool has_outgoing_messages = false;
-
-    bool was_opened = false;
-    bool need_unload_on_close = false;
-
-    bool need_restore_reply_markup = true;
-    bool need_drop_default_send_message_as_dialog_id = false;
-
-    bool have_full_history = false;
-    bool is_empty = false;
-
-    bool is_last_read_inbox_message_id_inited = false;
-    bool is_last_read_outbox_message_id_inited = false;
-    bool is_last_pinned_message_id_inited = false;
-    bool is_folder_id_inited = false;
-    bool need_repair_server_unread_count = false;
-    bool need_repair_channel_server_unread_count = false;
-    bool is_forum = false;
-    bool view_as_messages = false;
-    bool is_marked_as_unread = false;
-    bool is_blocked = false;
-    bool is_is_blocked_inited = false;
-    bool is_blocked_for_stories = false;
-    bool is_is_blocked_for_stories_inited = false;
-    bool last_sent_has_scheduled_messages = false;
-    bool has_scheduled_server_messages = false;
-    bool has_scheduled_database_messages = false;
-    bool is_has_scheduled_database_messages_checked = false;
-    bool has_loaded_scheduled_messages_from_database = false;
-    bool sent_scheduled_messages = false;
-    bool had_last_yet_unsent_message = false;  // whether the dialog was stored to database without last message
-    bool has_active_group_call = false;
-    bool is_group_call_empty = false;
-    bool is_message_ttl_inited = false;
-    bool has_expected_active_group_call_id = false;
-    bool has_bots = false;
-    bool is_view_as_messages_inited = false;
-    bool is_saved_messages_view_as_messages_inited = false;
-    bool is_has_bots_inited = false;
-    bool is_background_inited = false;
-    bool is_theme_name_inited = false;
-    bool is_available_reactions_inited = false;
-    bool had_yet_unsent_message_id_overflow = false;
-    bool need_repair_unread_reaction_count = false;
-    bool need_repair_unread_mention_count = false;
-    bool is_translatable = false;
-    bool last_need_hide_dialog_draft_message = false;
-
-    bool is_update_new_chat_sent = false;
-    bool is_update_new_chat_being_sent = false;
-    bool has_unload_timeout = false;
-    bool is_channel_difference_finished = false;
-
-    int32 pts = 0;                                             // for channels only
-    int32 pending_read_channel_inbox_pts = 0;                  // for channels only
-    int32 pending_read_channel_inbox_server_unread_count = 0;  // for channels only
-    MessageId pending_read_channel_inbox_max_message_id;       // for channels only
-    FlatHashMap<int64, MessageId> random_id_to_message_id;     // for secret chats and yet unsent messages only
-
-    MessageId last_assigned_message_id;  // identifier of the last local or yet unsent message, assigned after
-                                         // application start, used to guarantee that all assigned message identifiers
-                                         // are different
-
-    WaitFreeHashSet<MessageId, MessageIdHash> deleted_message_ids;
-
-    string client_data;
-
-    WaitFreeHashMap<MessageId, unique_ptr<Message>, MessageIdHash> messages;
-
-    mutable ListNode message_lru_list;
-
-    OrderedMessages ordered_messages;
-
-    unique_ptr<DialogScheduledMessages> scheduled_messages;
-
-    const char *debug_set_dialog_last_database_message_id = "Unknown";  // to be removed soon
-
-    // message identifiers loaded from database
-    MessageId debug_last_new_message_id;
-    MessageId debug_first_database_message_id;
-    MessageId debug_last_database_message_id;
-
-    Dialog() = default;
-    Dialog(const Dialog &) = delete;
-    Dialog &operator=(const Dialog &) = delete;
-    Dialog(Dialog &&) = delete;
-    Dialog &operator=(Dialog &&) = delete;
-    ~Dialog() = default;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct DialogList {
-    DialogListId dialog_list_id;
-    bool is_message_unread_count_inited_ = false;
-    bool is_dialog_unread_count_inited_ = false;
-    bool need_unread_count_recalc_ = true;
-    int32 unread_message_total_count_ = 0;
-    int32 unread_message_muted_count_ = 0;
-    int32 unread_dialog_total_count_ = 0;
-    int32 unread_dialog_muted_count_ = 0;
-    int32 unread_dialog_marked_count_ = 0;
-    int32 unread_dialog_muted_marked_count_ = 0;
-    int32 in_memory_dialog_total_count_ = 0;
-    int32 server_dialog_total_count_ = -1;
-    int32 secret_chat_total_count_ = -1;
-    int64 unique_id_ = 0;
-
-    vector<Promise<Unit>> load_list_queries_;
-
-    FlatHashMap<DialogId, int64, DialogIdHash> pinned_dialog_id_orders_;
-    vector<DialogDate> pinned_dialogs_;
-    bool are_pinned_dialogs_inited_ = false;
-
-    DialogDate last_pinned_dialog_date_ = MIN_DIALOG_DATE;  // in memory
-
-    // date of the last loaded dialog
-    // min(folder1_last_dialog_date_, folder2_last_dialog_date, last_pinned_dialog_date_)
-    DialogDate list_last_dialog_date_ = MIN_DIALOG_DATE;  // in memory
-  };
-
-  struct DialogFolder {
-    FolderId folder_id;
-    // date of the last loaded dialog in the folder
-    DialogDate folder_last_dialog_date_{MAX_ORDINARY_DIALOG_ORDER, DialogId()};  // in memory
-
-    std::set<DialogDate> ordered_dialogs_;  // all known dialogs, including with default order
-
-    // date of last known user/group/channel dialog in the right order
-    DialogDate last_server_dialog_date_{MAX_ORDINARY_DIALOG_ORDER, DialogId()};
-    DialogDate last_loaded_database_dialog_date_{MAX_ORDINARY_DIALOG_ORDER, DialogId()};
-    DialogDate last_database_server_dialog_date_{MAX_ORDINARY_DIALOG_ORDER, DialogId()};
-
-    MultiPromiseActor load_folder_dialog_list_multipromise_{
-        "LoadDialogListMultiPromiseActor"};  // must be defined before pending_on_get_dialogs_
-    int32 load_dialog_list_limit_max_ = 0;
-  };
-
-  class DialogListViewIterator {
-    MessagesManager *messages_manager_;
-    const DialogListId *dialog_list_id_;
-
-   public:
-    DialogListViewIterator(MessagesManager *messages_manager, const DialogListId *dialog_list_id)
-        : messages_manager_(messages_manager), dialog_list_id_(dialog_list_id) {
-    }
-
-    DialogList &operator*() const {
-      auto dialog_list_ptr = messages_manager_->get_dialog_list(*dialog_list_id_);
-      CHECK(dialog_list_ptr != nullptr);
-      return *dialog_list_ptr;
-    }
-
-    bool operator!=(const DialogListViewIterator &other) const {
-      return dialog_list_id_ != other.dialog_list_id_;
-    }
-
-    void operator++() {
-      dialog_list_id_++;
-    }
-  };
-
-  class DialogListView {
-    MessagesManager *messages_manager_;
-    // TODO can be optimized to store only mask of dialog lists
-    vector<DialogListId> dialog_list_ids_;
-
-   public:
-    DialogListView(MessagesManager *messages_manager, vector<DialogListId> dialog_list_ids)
-        : messages_manager_(messages_manager), dialog_list_ids_(std::move(dialog_list_ids)) {
-    }
-
-    DialogListViewIterator begin() {
-      return DialogListViewIterator(messages_manager_, dialog_list_ids_.empty() ? nullptr : &dialog_list_ids_[0]);
-    }
-
-    DialogListViewIterator end() {
-      return DialogListViewIterator(
-          messages_manager_, dialog_list_ids_.empty() ? nullptr : &dialog_list_ids_[0] + dialog_list_ids_.size());
-    }
-  };
-
-  struct DialogPositionInList {
-    int64 order = DEFAULT_ORDER;
-    int64 private_order = 0;
-    int64 public_order = 0;
-    bool is_pinned = false;
-    bool is_sponsored = false;
-
-    int32 total_dialog_count = 0;
-
-    friend StringBuilder &operator<<(StringBuilder &string_builder, const DialogPositionInList &order) {
-      return string_builder << "order = " << order.order << ", private_order = " << order.private_order
-                            << ", public_order = " << order.public_order << ", is_pinned = " << order.is_pinned
-                            << ", is_sponsored = " << order.is_sponsored
-                            << ", total_dialog_count = " << order.total_dialog_count;
-    }
-  };
-
-  struct PendingSecretMessage {
-    enum class Type : int32 { NewMessage, DeleteMessages, DeleteHistory };
-    Type type = Type::NewMessage;
-
-    // for NewMessage
-    MessageInfo message_info;
-    MultiPromiseActor load_data_multipromise{"LoadPendingSecretMessageDataMultiPromiseActor"};
-
-    // for DeleteMessages/DeleteHistory
-    DialogId dialog_id;
-    vector<int64> random_ids;
-    MessageId last_message_id;
-    bool remove_from_dialog_list = false;
-
-    Promise<Unit> success_promise;
-  };
-
-  struct MessageSendOptions {
-    bool disable_notification = false;
-    bool from_background = false;
-    bool update_stickersets_order = false;
-    bool protect_content = false;
-    bool allow_paid = false;
-    bool only_preview = false;
-    int32 schedule_date = 0;
-    int32 sending_id = 0;
-    MessageEffectId effect_id;
-    int64 paid_message_star_count = 0;
-
-    MessageSendOptions() = default;
-    MessageSendOptions(bool disable_notification, bool from_background, bool update_stickersets_order,
-                       bool protect_content, bool allow_paid, bool only_preview, int32 schedule_date, int32 sending_id,
-                       MessageEffectId effect_id, int64 paid_message_star_count)
-        : disable_notification(disable_notification)
-        , from_background(from_background)
-        , update_stickersets_order(update_stickersets_order)
-        , protect_content(protect_content)
-        , allow_paid(allow_paid)
-        , only_preview(only_preview)
-        , schedule_date(schedule_date)
-        , sending_id(sending_id)
-        , effect_id(effect_id)
-        , paid_message_star_count(paid_message_star_count) {
-    }
-  };
-
-  struct SuffixLoadQueries {
-    bool suffix_load_done_ = false;
-    bool suffix_load_has_query_ = false;
-
-    MessageId suffix_load_first_message_id_;  // identifier of some message such all suffix messages in range
-                                              // [suffix_load_first_message_id_, last_message_id] are loaded
-    MessageId suffix_load_query_message_id_;
-    vector<std::pair<Promise<Unit>, std::function<bool(const Message *)>>> suffix_load_queries_;
-  };
-
-  struct PendingGetHistoryQuery {
-    DialogId dialog_id_;
-    MessageId from_message_id_;
-    MessageId old_last_message_id_;
-    int32 offset_ = 0;
-    int32 limit_ = 0;
-    bool from_database_ = false;
-    bool only_local_ = false;
-
-    bool operator==(const PendingGetHistoryQuery &other) const {
-      return dialog_id_ == other.dialog_id_ && from_message_id_ == other.from_message_id_ &&
-             old_last_message_id_ == other.old_last_message_id_ && offset_ == other.offset_ && limit_ == other.limit_ &&
-             from_database_ == other.from_database_ && only_local_ == other.only_local_;
-    }
-  };
-  struct PendingGetHistoryQueryHash {
-    uint32 operator()(const PendingGetHistoryQuery &query) const {
-      uint32 hash = DialogIdHash()(query.dialog_id_);
-      hash = combine_hashes(hash, MessageIdHash()(query.from_message_id_));
-      hash = combine_hashes(hash, MessageIdHash()(query.old_last_message_id_));
-      hash = combine_hashes(hash, Hash<int32>()(query.offset_));
-      hash = combine_hashes(hash, Hash<int32>()(query.limit_));
-      hash = combine_hashes(hash, static_cast<uint32>(query.from_database_));
-      hash = combine_hashes(hash, static_cast<uint32>(query.only_local_));
-      return hash;
-    }
-  };
-
-  class DeleteMessageLogEvent;
-  class ForwardMessagesLogEvent;
-  class GetChannelDifferenceLogEvent;
-  class ReadHistoryInSecretChatLogEvent;
-  class ReadHistoryOnServerLogEvent;
-  class ReadMessageThreadHistoryOnServerLogEvent;
-  class RegetDialogLogEvent;
-  class SaveDialogDraftMessageOnServerLogEvent;
-  class SendBotStartMessageLogEvent;
-  class SendInlineQueryResultMessageLogEvent;
-  class SendMessageLogEvent;
-  class SendQuickReplyShortcutMessagesLogEvent;
-  class SendScreenshotTakenNotificationMessageLogEvent;
-  class SetDialogFolderIdOnServerLogEvent;
-  class UpdateDialogNotificationSettingsOnServerLogEvent;
-
-  static constexpr size_t MAX_GROUPED_MESSAGES = 10;  // server side limit
-  static constexpr int32 MAX_GET_DIALOGS = 100;       // server side limit
-  static constexpr int32 MAX_GET_HISTORY = 100;       // server side limit
-  static constexpr int32 MAX_SEARCH_MESSAGES = 100;   // server side limit
-  static constexpr int32 MIN_CHANNEL_DIFFERENCE = 1;
-  static constexpr int32 MAX_CHANNEL_DIFFERENCE = 100;
-  static constexpr int32 MAX_BOT_CHANNEL_DIFFERENCE = 100000;  // server side limit
-  static constexpr size_t MIN_DELETED_ASYNCHRONOUSLY_MESSAGES = 2;
-  static constexpr size_t MAX_UNLOADED_MESSAGES = 5000;
-
-  static constexpr int64 SPONSORED_DIALOG_ORDER = static_cast<int64>(2147483647) << 32;
-  static constexpr int32 MIN_PINNED_DIALOG_DATE = 2147000000;  // some big date
-  static constexpr int64 MAX_ORDINARY_DIALOG_ORDER =
-      9221294780217032704;  // == get_dialog_order(MessageId(), MIN_PINNED_DIALOG_DATE - 1)
-
-  static constexpr int32 MAX_MESSAGE_VIEW_DELAY = 1;  // seconds
-  static constexpr int32 MIN_SAVE_DRAFT_DELAY = 1;    // seconds
-  static constexpr int32 MIN_READ_HISTORY_DELAY = 3;  // seconds
-  static constexpr int32 MAX_SAVE_DIALOG_DELAY = 0;   // seconds
-
-  static constexpr int32 DEFAULT_LOADED_EXPIRED_MESSAGES = 50;
-
-  static constexpr int32 LIVE_LOCATION_VIEW_PERIOD = 60;      // seconds, server-side limit
-  static constexpr int32 UPDATE_VIEWED_MESSAGES_PERIOD = 15;  // seconds
-
-  static constexpr int32 AUTH_NOTIFICATION_ID_CACHE_TIME = 7 * 86400;
-  static constexpr size_t MAX_SAVED_AUTH_NOTIFICATION_IDS = 100;
-
-  static constexpr int32 MAX_RESEND_DELAY = 86400;  // seconds, some reasonable limit
-
-  static constexpr int32 SCHEDULE_WHEN_ONLINE_DATE = 2147483646;
-
-  static constexpr const char *DELETE_MESSAGE_USER_REQUEST_SOURCE = "user request";
-
-  static constexpr bool DROP_SEND_MESSAGE_UPDATES = false;
-
-  vector<UserId> get_message_user_ids(const Message *m) const;
-
-  vector<ChannelId> get_message_channel_ids(const Message *m) const;
-
-  static bool is_dialog_inited(const Dialog *d);
-
-  int32 get_dialog_mute_until(const Dialog *d) const;
-
-  bool is_dialog_muted(const Dialog *d) const;
-
-  bool is_dialog_pinned_message_notifications_disabled(const Dialog *d) const;
-
-  bool is_dialog_mention_notifications_disabled(const Dialog *d) const;
-
-  bool is_dialog_pinned(DialogListId dialog_list_id, DialogId dialog_id) const;
-
-  int64 get_dialog_pinned_order(DialogListId dialog_list_id, DialogId dialog_id) const;
-
-  static int64 get_dialog_pinned_order(const DialogList *list, DialogId dialog_id);
-
-  void open_dialog(Dialog *d);
-
-  void close_dialog(Dialog *d);
-
-  void on_resolve_secret_chat_message_via_bot_username(const string &via_bot_username, MessageInfo *message_info_ptr,
-                                                       Promise<Unit> &&promise);
-
-  void add_secret_message(unique_ptr<PendingSecretMessage> pending_secret_message, Promise<Unit> lock_promise = {});
-
-  void on_add_secret_message_ready(int64 token);
-
-  void finish_add_secret_message(unique_ptr<PendingSecretMessage> pending_secret_message);
-
-  void finish_delete_secret_messages(DialogId dialog_id, std::vector<int64> random_ids, Promise<Unit> promise);
-
-  void finish_delete_secret_chat_history(DialogId dialog_id, bool remove_from_dialog_list, MessageId last_message_id,
-                                         Promise<Unit> promise);
-
-  static MessageInfo parse_telegram_api_message(Td *td, tl_object_ptr<telegram_api::Message> message_ptr,
-                                                bool is_scheduled, bool is_business_message, const char *source);
-
-  static std::pair<DialogId, unique_ptr<Message>> create_message(Td *td, MessageInfo &&message_info,
-                                                                 bool is_channel_message, bool is_business_message,
-                                                                 const char *source);
-
-  MessageId find_old_message_id(DialogId dialog_id, MessageId message_id) const;
-
-  void delete_update_message_id(DialogId dialog_id, MessageId message_id);
-
-  void get_dialog_message_count_from_server(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                            MessageSearchFilter filter, Promise<int32> &&promise);
-
-  MessageFullId on_get_message(MessageInfo &&message_info, const bool from_update, const bool is_channel_message,
-                               const char *source);
-
-  Result<InputMessageContent> process_input_message_content(
-      DialogId dialog_id, tl_object_ptr<td_api::InputMessageContent> &&input_message_content,
-      bool check_permissions = true);
-
-  Result<MessageCopyOptions> process_message_copy_options(DialogId dialog_id,
-                                                          tl_object_ptr<td_api::messageCopyOptions> &&options) const;
-
-  Status check_paid_message_star_count(int64 &paid_message_star_count, int32 message_count) const;
-
-  Result<MessageSendOptions> process_message_send_options(DialogId dialog_id,
-                                                          tl_object_ptr<td_api::messageSendOptions> &&options,
-                                                          bool allow_update_stickersets_order, bool allow_effect,
-                                                          int32 message_count) const;
-
-  static Status can_use_message_send_options(const MessageSendOptions &options,
-                                             const unique_ptr<MessageContent> &content, MessageSelfDestructType ttl);
-
-  static Status can_use_message_send_options(const MessageSendOptions &options, const InputMessageContent &content);
-
-  Status can_use_top_thread_message_id(Dialog *d, MessageId top_thread_message_id,
-                                       const MessageInputReplyTo &input_reply_to);
-
-  int64 generate_new_random_id(const Dialog *d);
-
-  unique_ptr<Message> create_message_to_send(Dialog *d, MessageId top_thread_message_id,
-                                             MessageInputReplyTo &&input_reply_to, const MessageSendOptions &options,
-                                             unique_ptr<MessageContent> &&content, bool invert_media,
-                                             bool suppress_reply_info, unique_ptr<MessageForwardInfo> forward_info,
-                                             DialogId real_forward_from_dialog_id, bool is_copy,
-                                             DialogId send_as_dialog_id) const;
-
-  Message *get_message_to_send(Dialog *d, MessageId top_thread_message_id, MessageInputReplyTo &&input_reply_to,
-                               const MessageSendOptions &options, unique_ptr<MessageContent> &&content,
-                               bool invert_media, bool *need_update_dialog_pos, bool suppress_reply_info = false,
-                               unique_ptr<MessageForwardInfo> forward_info = nullptr,
-                               DialogId real_forward_from_dialog_id = DialogId(), bool is_copy = false,
-                               DialogId sender_dialog_id = DialogId());
-
-  int64 begin_send_message(DialogId dialog_id, const Message *m);
-
-  Status can_send_message(DialogId dialog_id) const TD_WARN_UNUSED_RESULT;
-
-  bool can_resend_message(const Message *m) const;
-
-  bool can_edit_message(DialogId dialog_id, const Message *m, bool is_editing, bool only_reply_markup = false) const;
-
-  bool can_edit_message_media(DialogId dialog_id, const Message *m, bool is_editing) const;
-
-  bool can_edit_message_scheduling_state(const Message *m) const;
-
-  Status can_pin_message(DialogId dialog_id, const Message *m) const TD_WARN_UNUSED_RESULT;
-
-  static Status can_get_media_timestamp_link(DialogId dialog_id, const Message *m);
-
-  bool can_report_message_reactions(DialogId dialog_id, const Message *m) const;
-
-  bool can_recognize_message_speech(DialogId dialog_id, const Message *m) const;
-
-  bool can_set_message_fact_check(DialogId dialog_id, const Message *m) const;
-
-  Status can_get_message_read_date(DialogId dialog_id, const Message *m) const TD_WARN_UNUSED_RESULT;
-
-  Status can_get_message_viewers(DialogId dialog_id, const Message *m) const TD_WARN_UNUSED_RESULT;
-
-  void cancel_edit_message_media(DialogId dialog_id, Message *m, Slice error_message);
-
-  void on_message_media_edited(DialogId dialog_id, MessageId message_id, FileUploadId file_upload_id,
-                               FileUploadId thumbnail_file_upload_id, FileId cover_file_id, bool was_uploaded,
-                               bool was_thumbnail_uploaded, string file_reference, string cover_file_reference,
-                               int32 schedule_date, uint64 generation, Result<int32> &&result);
-
-  MessageId get_persistent_message_id(const Dialog *d, MessageId message_id) const;
-
-  static MessageFullId get_replied_message_id(DialogId dialog_id, const Message *m);
-
-  MessageInputReplyTo create_message_input_reply_to(Dialog *d, MessageId top_thread_message_id,
-                                                    td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to,
-                                                    bool for_draft);
-
-  static const MessageInputReplyTo *get_message_input_reply_to(const Message *m);
-
-  bool can_set_game_score(DialogId dialog_id, const Message *m) const;
-
-  void add_postponed_channel_update(DialogId dialog_id, tl_object_ptr<telegram_api::Update> &&update, int32 new_pts,
-                                    int32 pts_count, Promise<Unit> &&promise);
-
-  bool process_channel_update(tl_object_ptr<telegram_api::Update> &&update_ptr);
-
-  void on_message_edited(MessageFullId message_full_id, int32 pts, bool had_message);
-
-  void delete_messages_from_updates(const vector<MessageId> &message_ids, bool is_permanent);
-
-  void delete_dialog_messages(DialogId dialog_id, const vector<MessageId> &message_ids,
-                              bool force_update_for_not_found_messages, const char *source);
-
-  void delete_dialog_messages(Dialog *d, const vector<MessageId> &message_ids, bool force_update_for_not_found_messages,
-                              const char *source);
-
-  void update_dialog_pinned_messages_from_updates(DialogId dialog_id, const vector<MessageId> &message_ids,
-                                                  bool is_pin);
-
-  bool update_message_is_pinned(Dialog *d, Message *m, bool is_pin, const char *source);
-
-  static FileUploadId get_media_file_upload_id(const vector<FileUploadId> &file_upload_ids, int32 media_pos);
-
-  FileUploadId get_message_send_file_upload_id(DialogId dialog_id, const Message *m, int32 media_pos) const;
-
-  FileUploadId get_message_send_thumbnail_file_upload_id(DialogId dialog_id, const Message *m, int32 media_pos) const;
-
-  void delete_message_send_thumbnail_file_upload_id(DialogId dialog_id, Message *m, int32 media_pos);
-
-  void do_forward_messages(DialogId to_dialog_id, DialogId from_dialog_id, const vector<Message *> &messages,
-                           const vector<MessageId> &message_ids, bool drop_author, bool drop_media_captions,
-                           uint64 log_event_id);
-
-  uint64 save_send_quick_reply_shortcut_messages_log_event(DialogId dialog_id, QuickReplyShortcutId shortcut_id,
-                                                           const vector<Message *> &messages,
-                                                           const vector<MessageId> &message_ids);
-
-  void do_send_quick_reply_shortcut_messages(DialogId dialog_id, QuickReplyShortcutId shortcut_id,
-                                             const vector<Message *> &messages, const vector<MessageId> &message_ids,
-                                             uint64 log_event_id);
-
-  void send_send_quick_reply_messages_query(DialogId dialog_id, QuickReplyShortcutId shortcut_id,
-                                            vector<MessageId> message_ids, vector<int64> random_ids,
-                                            Promise<Unit> promise);
-
-  void send_forward_message_query(int32 flags, DialogId to_dialog_id, const MessageId top_thread_message_id,
-                                  DialogId from_dialog_id, tl_object_ptr<telegram_api::InputPeer> as_input_peer,
-                                  vector<MessageId> message_ids, vector<int64> random_ids, int32 schedule_date,
-                                  int32 new_video_start_timestamp, int64 paid_message_star_count,
-                                  Promise<Unit> promise);
-
-  Result<td_api::object_ptr<td_api::message>> forward_message(DialogId to_dialog_id, MessageId top_thread_message_id,
-                                                              DialogId from_dialog_id, MessageId message_id,
-                                                              td_api::object_ptr<td_api::messageSendOptions> &&options,
-                                                              bool in_game_share, int32 new_video_start_timestamp,
-                                                              MessageCopyOptions &&copy_options) TD_WARN_UNUSED_RESULT;
-
-  MessageOrigin get_forwarded_message_origin(DialogId dialog_id, const Message *m) const;
-
-  unique_ptr<MessageForwardInfo> create_message_forward_info(DialogId from_dialog_id, DialogId to_dialog_id,
-                                                             const Message *m) const;
-
-  void fix_forwarded_message(Message *m, DialogId to_dialog_id, const Message *forwarded_message, int64 media_album_id,
-                             bool drop_author) const;
-
-  struct ForwardedMessages {
-    struct CopiedMessage {
-      unique_ptr<MessageContent> content;
-      MessageInputReplyTo input_reply_to;
-      MessageId original_message_id;
-      MessageId original_reply_to_message_id;
-      unique_ptr<ReplyMarkup> reply_markup;
-      int64 media_album_id;
-      bool disable_web_page_preview;
-      bool invert_media;
-      size_t index;
-    };
-    vector<CopiedMessage> copied_messages;
-
-    struct ForwardedMessageContent {
-      unique_ptr<MessageContent> content;
-      bool invert_media;
-      int64 media_album_id;
-      size_t index;
-    };
-    vector<ForwardedMessageContent> forwarded_message_contents;
-    bool drop_author = false;
-    bool drop_media_captions = false;
-
-    Dialog *from_dialog;
-    MessageId top_thread_message_id;
-    Dialog *to_dialog;
-    MessageSendOptions message_send_options;
-  };
-
-  Result<ForwardedMessages> get_forwarded_messages(DialogId to_dialog_id, MessageId top_thread_message_id,
-                                                   DialogId from_dialog_id, const vector<MessageId> &message_ids,
-                                                   td_api::object_ptr<td_api::messageSendOptions> &&options,
-                                                   int32 new_video_start_timestamp,
-                                                   vector<MessageCopyOptions> &&copy_options);
-
-  void do_send_media(DialogId dialog_id, const Message *m, int32 media_pos,
-                     telegram_api::object_ptr<telegram_api::InputFile> input_file,
-                     telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail);
-
-  void do_send_secret_media(DialogId dialog_id, const Message *m,
-                            telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_encrypted_file,
-                            BufferSlice thumbnail);
-
-  void do_send_message(DialogId dialog_id, const Message *m, int32 media_pos = -1, vector<int> bad_parts = {});
-
-  void on_cover_upload(DialogId dialog_id, MessageId message_id, uint64 edit_generation, int32 media_pos,
-                       vector<int> bad_parts, Result<Unit> result);
-
-  void on_message_media_uploaded(DialogId dialog_id, const Message *m, int32 media_pos,
-                                 telegram_api::object_ptr<telegram_api::InputMedia> &&input_media);
-
-  void on_secret_message_media_uploaded(DialogId dialog_id, const Message *m, SecretInputMedia &&secret_input_media);
-
-  void on_upload_message_media_finished(int64 media_album_id, DialogId dialog_id, MessageId message_id, int32 media_pos,
-                                        Status result);
-
-  void do_send_message_group(int64 media_album_id);
-
-  void do_send_paid_media_group(DialogId dialog_id, MessageId message_id);
-
-  void on_text_message_ready_to_send(DialogId dialog_id, MessageId message_id);
-
-  void on_media_message_ready_to_send(DialogId dialog_id, MessageId message_id, Promise<Message *> &&promise);
-
-  void send_secret_message(DialogId dialog_id, const Message *m, SecretInputMedia media);
-
-  void on_yet_unsent_media_queue_updated(DialogId dialog_id);
-
-  static void save_send_bot_start_message_log_event(UserId bot_user_id, DialogId dialog_id, const string &parameter,
-                                                    const Message *m);
-
-  void do_send_bot_start_message(UserId bot_user_id, DialogId dialog_id, MessageId message_id, const string &parameter);
-
-  static void save_send_inline_query_result_message_log_event(DialogId dialog_id, const Message *m, int64 query_id,
-                                                              const string &result_id);
-
-  void do_send_inline_query_result_message(DialogId dialog_id, MessageId message_id, int64 query_id,
-                                           const string &result_id);
-
-  void send_screenshot_taken_notification_message(Dialog *d);
-
-  static uint64 save_send_screenshot_taken_notification_message_log_event(DialogId dialog_id, const Message *m);
-
-  void do_send_screenshot_taken_notification_message(DialogId dialog_id, const Message *m, uint64 log_event_id);
-
-  void set_message_reply(const Dialog *d, Message *m, MessageInputReplyTo input_reply_to, bool is_message_in_dialog);
-
-  void update_message_reply_to_message_id(const Dialog *d, Message *m, MessageId reply_to_message_id,
-                                          bool is_message_in_dialog);
-
-  void restore_message_reply_to_message_id(Dialog *d, Message *m);
-
-  Message *continue_send_message(DialogId dialog_id, unique_ptr<Message> &&message, bool *need_update_dialog_pos,
-                                 uint64 log_event_id);
-
-  bool is_message_unload_enabled() const;
-
-  int64 generate_new_media_album_id();
-
-  static bool can_forward_message(DialogId from_dialog_id, const Message *m);
-
-  bool can_save_message(DialogId dialog_id, const Message *m) const;
-
-  bool can_share_message_in_story(DialogId dialog_id, const Message *m) const;
-
-  bool can_get_message_statistics(DialogId dialog_id, const Message *m) const;
-
-  Status can_get_message_embedding_code(DialogId dialog_id, const Message *m) const;
-
-  struct CanDeleteDialog {
-    bool for_self_;
-    bool for_all_users_;
-
-    CanDeleteDialog(bool for_self, bool for_all_users) : for_self_(for_self), for_all_users_(for_all_users) {
-    }
-  };
-  CanDeleteDialog can_delete_dialog(const Dialog *d) const;
-
-  static bool can_delete_channel_message(const DialogParticipantStatus &status, const Message *m, bool is_bot);
-
-  bool can_delete_message(DialogId dialog_id, const Message *m) const;
-
-  bool can_revoke_message(DialogId dialog_id, const Message *m) const;
-
-  bool can_unload_message(const Dialog *d, const Message *m) const;
-
-  unique_ptr<Message> unload_message(Dialog *d, MessageId message_id);
-
-  unique_ptr<Message> delete_message(Dialog *d, MessageId message_id, bool is_permanently_deleted,
-                                     bool *need_update_dialog_pos, const char *source);
-
-  unique_ptr<Message> do_delete_message(Dialog *d, MessageId message_id, bool is_permanently_deleted,
-                                        bool only_from_memory, bool *need_update_dialog_pos, const char *source);
-
-  unique_ptr<Message> do_delete_scheduled_message(Dialog *d, MessageId message_id, bool is_permanently_deleted,
-                                                  const char *source);
-
-  void on_message_deleted_from_database(Dialog *d, const Message *m, const char *source);
-
-  void on_message_deleted(Dialog *d, Message *m, bool is_permanently_deleted, const char *source);
-
-  static bool is_deleted_message(const Dialog *d, MessageId message_id);
-
-  int32 get_unload_dialog_delay() const;
-
-  double get_next_unload_dialog_delay(Dialog *d) const;
-
-  void unload_dialog(DialogId dialog_id, int32 delay);
-
-  void clear_dialog_message_list(Dialog *d, bool remove_from_dialog_list, int32 last_message_date);
-
-  void delete_all_dialog_messages(Dialog *d, bool remove_from_dialog_list, bool is_permanently_deleted);
-
-  void delete_sent_message_on_server(DialogId dialog_id, MessageId message_id, MessageId old_message_id);
-
-  static vector<MessageId> find_dialog_messages(const Dialog *d, const std::function<bool(const Message *)> &condition);
-
-  std::function<int32(MessageId)> get_get_message_date(const Dialog *d) const;
-
-  vector<MessageId> find_unloadable_messages(const Dialog *d, int32 unload_before_date,
-                                             bool &has_left_to_unload_messages) const;
-
-  void on_pending_message_views_timeout(DialogId dialog_id);
-
-  void update_message_interaction_info(MessageFullId message_full_id, int32 view_count, int32 forward_count,
-                                       bool has_reply_info, tl_object_ptr<telegram_api::messageReplies> &&reply_info,
-                                       bool has_reactions, unique_ptr<MessageReactions> &&reactions);
-
-  bool is_thread_message(DialogId dialog_id, const Message *m) const;
-
-  bool is_thread_message(DialogId dialog_id, MessageId message_id, const MessageReplyInfo &reply_info,
-                         MessageContentType content_type) const;
-
-  bool is_active_message_reply_info(DialogId dialog_id, const MessageReplyInfo &reply_info) const;
-
-  bool is_visible_message_reply_info(DialogId dialog_id, const Message *m) const;
-
-  bool is_visible_message_reactions(DialogId dialog_id, const Message *m) const;
-
-  bool has_unread_message_reactions(DialogId dialog_id, const Message *m) const;
-
-  void on_message_reply_info_changed(DialogId dialog_id, const Message *m) const;
-
-  Result<MessageFullId> get_top_thread_message_full_id(DialogId dialog_id, const Message *m, bool allow_non_root) const;
-
-  td_api::object_ptr<td_api::messageInteractionInfo> get_message_interaction_info_object(DialogId dialog_id,
-                                                                                         const Message *m) const;
-
-  td_api::object_ptr<td_api::factCheck> get_message_fact_check_object(const Message *m) const;
-
-  vector<td_api::object_ptr<td_api::unreadReaction>> get_unread_reactions_object(DialogId dialog_id,
-                                                                                 const Message *m) const;
-
-  bool update_message_interaction_info(Dialog *d, Message *m, int32 view_count, int32 forward_count,
-                                       bool has_reply_info, MessageReplyInfo &&reply_info, bool has_reactions,
-                                       unique_ptr<MessageReactions> &&reactions, const char *source);
-
-  bool update_message_fact_check(const Dialog *d, Message *m, unique_ptr<FactCheck> &&fact_check, bool need_save);
-
-  bool update_message_contains_unread_mention(Dialog *d, Message *m, bool contains_unread_mention, const char *source);
-
-  bool remove_message_unread_reactions(Dialog *d, Message *m, const char *source);
-
-  void read_message_content_from_updates(MessageId message_id, int32 read_date);
-
-  void read_channel_message_content_from_updates(Dialog *d, MessageId message_id);
-
-  bool read_message_content(Dialog *d, Message *m, bool is_local_read, int32 read_date, const char *source);
-
-  bool has_incoming_notification(DialogId dialog_id, const Message *m) const;
-
-  void read_history_outbox(Dialog *d, MessageId max_message_id, int32 read_date = -1);
-
-  void read_history_inbox(Dialog *d, MessageId max_message_id, int32 unread_count, const char *source);
-
-  void read_dialog_inbox(Dialog *d, MessageId max_message_id);
-
-  void mark_dialog_as_read(Dialog *d);
-
-  int32 calc_new_unread_count_from_last_unread(Dialog *d, MessageId max_message_id, MessageType type) const;
-
-  int32 calc_new_unread_count_from_the_end(Dialog *d, MessageId max_message_id, MessageType type,
-                                           int32 hint_unread_count) const;
-
-  int32 calc_new_unread_count(Dialog *d, MessageId max_message_id, MessageType type, int32 hint_unread_count) const;
-
-  void repair_server_unread_count(DialogId dialog_id, int32 unread_count, const char *source);
-
-  void repair_channel_server_unread_count(Dialog *d);
-
-  void repair_dialog_unread_reaction_count(Dialog *d, Promise<Unit> &&promise, const char *source);
-
-  void repair_dialog_unread_mention_count(Dialog *d, const char *source);
-
-  void read_history_on_server(Dialog *d, MessageId max_message_id);
-
-  void do_read_history_on_server(DialogId dialog_id);
-
-  void read_history_on_server_impl(Dialog *d, MessageId max_message_id);
-
-  void read_message_thread_history_on_server_impl(Dialog *d, MessageId top_thread_message_id, MessageId max_message_id);
-
-  void on_read_history_finished(DialogId dialog_id, MessageId top_thread_message_id, uint64 generation);
-
-  void read_message_thread_history_on_server(Dialog *d, MessageId top_thread_message_id, MessageId max_message_id,
-                                             MessageId last_message_id);
-
-  void read_secret_chat_outbox_inner(DialogId dialog_id, int32 up_to_date, int32 read_date);
-
-  void set_dialog_max_unavailable_message_id(DialogId dialog_id, MessageId max_unavailable_message_id, bool from_update,
-                                             const char *source);
-
-  void on_update_viewed_messages_timeout(DialogId dialog_id);
-
-  void on_send_update_chat_read_inbox_timeout(DialogId dialog_id);
-
-  bool delete_newer_server_messages_at_the_end(Dialog *d, MessageId max_message_id);
-
-  template <class T, class It>
-  vector<MessageId> get_message_history_slice(const T &begin, It it, const T &end, MessageId from_message_id,
-                                              int32 offset, int32 limit);
-
-  void preload_newer_messages(const Dialog *d, MessageId max_message_id);
-
-  void preload_older_messages(const Dialog *d, MessageId min_message_id);
-
-  void load_last_dialog_message_later(DialogId dialog_id);
-
-  void load_last_dialog_message(const Dialog *d, const char *source);
-
-  void on_get_history_from_database(DialogId dialog_id, MessageId from_message_id,
-                                    MessageId old_last_database_message_id, int32 offset, int32 limit, bool only_local,
-                                    vector<MessageDbDialogMessage> &&messages, Promise<Unit> &&promise);
-
-  void get_history_impl(const Dialog *d, MessageId from_message_id, int32 offset, int32 limit, bool from_database,
-                        bool only_local, Promise<Unit> &&promise, const char *source);
-
-  void on_get_history_finished(const PendingGetHistoryQuery &query, Result<Unit> &&result);
-
-  void load_messages(DialogId dialog_id, MessageId from_message_id, int32 offset, int32 limit, int left_tries,
-                     bool only_local, Promise<Unit> &&promise);
-
-  void load_messages_impl(const Dialog *d, MessageId from_message_id, int32 offset, int32 limit, int left_tries,
-                          bool only_local, Promise<Unit> &&promise);
-
-  void load_dialog_scheduled_messages(DialogId dialog_id, bool from_database, int64 hash, Promise<Unit> &&promise);
-
-  void on_get_scheduled_messages_from_database(DialogId dialog_id, vector<MessageDbDialogMessage> &&messages);
-
-  static bool have_dialog_scheduled_messages_in_memory(const Dialog *d);
-
-  static bool is_allowed_useless_update(const tl_object_ptr<telegram_api::Update> &update);
-
-  bool is_message_auto_read(DialogId dialog_id, bool is_outgoing) const;
-
-  void fail_send_message(MessageFullId message_full_id, int32 error_code, const string &error_message);
-
-  void fail_send_message(MessageFullId message_full_id, Status error);
-
-  void fail_edit_message_media(MessageFullId message_full_id, Status &&error);
-
-  void on_dialog_updated(DialogId dialog_id, const char *source);
-
-  static BufferSlice get_dialog_database_value(const Dialog *d);
-
-  void save_dialog_to_database(DialogId dialog_id);
-
-  void on_save_dialog_to_database(DialogId dialog_id, bool can_reuse_notification_group, bool success);
-
-  void try_reuse_notification_group(NotificationGroupInfo &group_info);
-
-  void load_dialog_list(DialogList &list, int32 limit, Promise<Unit> &&promise);
-
-  void load_folder_dialog_list(FolderId folder_id, int32 limit, bool only_local);
-
-  void on_load_folder_dialog_list(FolderId folder_id, Result<Unit> &&result);
-
-  void load_folder_dialog_list_from_database(FolderId folder_id, int32 limit, Promise<Unit> &&promise);
-
-  void preload_folder_dialog_list(FolderId folder_id);
-
-  void get_dialogs_from_list_impl(int64 task_id);
-
-  void on_get_dialogs_from_list(int64 task_id, Result<Unit> &&result);
-
-  static void invalidate_message_indexes(Dialog *d);
-
-  void update_message_count_by_index(Dialog *d, int diff, const Message *m);
-
-  void update_message_count_by_index(Dialog *d, int diff, int32 index_mask);
-
-  int32 get_message_index_mask(DialogId dialog_id, const Message *m) const;
-
-  void update_reply_count_by_message(Dialog *d, int diff, const Message *m);
-
-  void update_message_reply_count(Dialog *d, MessageId message_id, DialogId replier_dialog_id,
-                                  MessageId reply_message_id, int32 update_date, int diff, bool is_recursive = false);
-
-  void fix_new_message(const Dialog *d, Message *m, bool from_database) const;
-
-  void remove_message_remove_keyboard_reply_markup(Message *m) const;
-
-  void update_replied_by_message_count(DialogId dialog_id, const Message *m, bool is_add);
-
-  void add_message_to_dialog_message_list(const Message *m, Dialog *d, const bool from_database, const bool from_update,
-                                          const bool need_update, bool *need_update_dialog_pos, const char *source);
-
-  Message *add_message_to_dialog(Dialog *d, unique_ptr<Message> message, const bool from_database,
-                                 const bool from_update, bool *need_update, bool *need_update_dialog_pos,
-                                 const char *source);
-
-  Message *add_scheduled_message_to_dialog(Dialog *d, unique_ptr<Message> message, bool from_database, bool from_update,
-                                           bool *need_update, const char *source);
-
-  void register_new_local_message_id(Dialog *d, const Message *m);
-
-  void on_message_changed(const Dialog *d, const Message *m, bool need_send_update, const char *source);
-
-  void on_message_notification_changed(Dialog *d, const Message *m, const char *source);
-
-  bool need_delete_file(MessageFullId message_full_id, FileId file_id) const;
-
-  bool need_delete_message_files(DialogId dialog_id, const Message *m) const;
-
-  void add_message_to_database(const Dialog *d, const Message *m, const char *source);
-
-  void delete_all_dialog_notifications(Dialog *d, MessageId max_message_id, const char *source);
-
-  void delete_all_dialog_messages_from_database(Dialog *d, MessageId max_message_id, const char *source);
-
-  void delete_message_from_database(Dialog *d, MessageId message_id, const Message *m, bool is_permanently_deleted,
-                                    const char *source);
-
-  void update_reply_to_message_id(DialogId dialog_id, MessageId old_message_id, MessageId new_message_id,
-                                  bool have_new_message, const char *source);
-
-  void delete_message_files(DialogId dialog_id, const Message *m) const;
-
-  static void add_random_id_to_message_id_correspondence(Dialog *d, int64 random_id, MessageId message_id);
-
-  static void delete_random_id_to_message_id_correspondence(Dialog *d, int64 random_id, MessageId message_id);
-
-  static void add_notification_id_to_message_id_correspondence(NotificationInfo *notification_info,
-                                                               NotificationId notification_id, MessageId message_id);
-
-  static void delete_notification_id_to_message_id_correspondence(NotificationInfo *notification_info,
-                                                                  NotificationId notification_id, MessageId message_id);
-
-  static bool is_notification_info_group_id(const NotificationInfo *notification_info, NotificationGroupId group_id);
-
-  static bool is_dialog_notification_group_id(const Dialog *d, NotificationGroupId group_id);
-
-  void remove_message_notification_id(Dialog *d, Message *m, bool is_permanent, bool force_update,
-                                      bool ignore_pinned_message_notification_removal = false);
-
-  void remove_new_secret_chat_notification(Dialog *d, bool is_permanent);
-
-  void fix_dialog_last_notification_id(Dialog *d, bool from_mentions, MessageId message_id);
-
-  void do_fix_dialog_last_notification_id(DialogId dialog_id, bool from_mentions,
-                                          NotificationId prev_last_notification_id,
-                                          Result<vector<Notification>> result);
-
-  void do_delete_message_log_event(const DeleteMessageLogEvent &log_event) const;
-
-  int64 get_message_reply_to_random_id(const Dialog *d, const Message *m) const;
-
-  bool update_message(Dialog *d, Message *old_message, unique_ptr<Message> new_message, bool is_message_in_dialog);
-
-  static bool need_message_changed_warning(const Message *old_message);
-
-  bool update_message_content(DialogId dialog_id, Message *old_message, unique_ptr<MessageContent> new_content,
-                              bool need_merge_files, bool is_message_in_dialog, bool &is_content_changed);
-
-  void update_message_max_reply_media_timestamp(const Dialog *d, Message *m,
-                                                bool need_send_update_message_content) const;
-
-  void update_message_max_own_media_timestamp(const Dialog *d, Message *m);
-
-  void update_message_max_reply_media_timestamp_in_replied_messages(DialogId dialog_id, MessageId reply_to_message_id);
-
-  bool can_register_message_reply(const Message *m) const;
-
-  void register_message_reply(DialogId dialog_id, const Message *m);
-
-  void reregister_message_reply(DialogId dialog_id, const Message *m);
-
-  void unregister_message_reply(DialogId dialog_id, const Message *m);
-
-  void send_update_new_message(const Dialog *d, const Message *m);
-
-  bool get_dialog_show_preview(const Dialog *d) const;
-
-  bool is_message_preview_enabled(const Dialog *d, const Message *m, bool from_mentions);
-
-  static bool is_from_mention_notification_group(const Message *m);
-
-  static bool is_message_notification_active(const Dialog *d, const Message *m);
-
-  static NotificationGroupInfo &get_notification_group_info(Dialog *d, bool from_mentions);
-
-  static NotificationGroupInfo &get_notification_group_info(Dialog *d, const Message *m);
-
-  NotificationGroupId get_dialog_notification_group_id(DialogId dialog_id, NotificationGroupInfo &group_info);
-
-  NotificationId get_next_notification_id(NotificationInfo *notification_info,
-                                          NotificationGroupId notification_group_id, MessageId message_id);
-
-  void try_add_pinned_message_notification(Dialog *d, vector<Notification> &res, NotificationId max_notification_id,
-                                           int32 limit);
-
-  vector<Notification> get_message_notifications_from_database_force(Dialog *d, bool from_mentions, int32 limit);
-
-  static vector<MessageDbDialogMessage> do_get_message_notifications_from_database_force(
-      Dialog *d, bool from_mentions, NotificationId from_notification_id, MessageId from_message_id, int32 limit);
-
-  void do_get_message_notifications_from_database(Dialog *d, bool from_mentions,
-                                                  NotificationId initial_from_notification_id,
-                                                  NotificationId from_notification_id, MessageId from_message_id,
-                                                  int32 limit, Promise<vector<Notification>> promise);
-
-  void on_get_message_notifications_from_database(DialogId dialog_id, bool from_mentions,
-                                                  NotificationId initial_from_notification_id, int32 limit,
-                                                  Result<vector<MessageDbDialogMessage>> result,
-                                                  Promise<vector<Notification>> promise);
-
-  void do_remove_message_notification(DialogId dialog_id, bool from_mentions, NotificationId notification_id,
-                                      vector<MessageDbDialogMessage> result);
-
-  int32 get_dialog_pending_notification_count(const Dialog *d, bool from_mentions) const;
-
-  void update_dialog_mention_notification_count(const Dialog *d);
-
-  bool is_message_notification_disabled(const Dialog *d, const Message *m) const;
-
-  bool is_dialog_message_notification_disabled(DialogId dialog_id, int32 message_date) const;
-
-  bool may_need_message_notification(const Dialog *d, const Message *m) const;
-
-  bool add_new_message_notification(Dialog *d, Message *m, bool force);
-
-  void flush_pending_new_message_notifications(DialogId dialog_id, bool from_mentions, DialogId settings_dialog_id);
-
-  void remove_all_dialog_notifications(Dialog *d, bool from_mentions, const char *source);
-
-  void remove_message_dialog_notifications(Dialog *d, MessageId max_message_id, bool from_mentions, const char *source);
-
-  bool need_skip_bot_commands(DialogId dialog_id, const Message *m) const;
-
-  void send_update_message_send_succeeded(Dialog *d, MessageId old_message_id, const Message *m,
-                                          bool *need_update_dialog_pos);
-
-  void send_update_video_published(MessageFullId message_full_id);
-
-  void send_update_message_content(const Dialog *d, Message *m, bool is_message_in_dialog, const char *source);
-
-  void send_update_message_content_impl(DialogId dialog_id, const Message *m, const char *source) const;
-
-  void send_update_message_edited(DialogId dialog_id, const Message *m);
-
-  void send_update_message_interaction_info(DialogId dialog_id, const Message *m) const;
-
-  void send_update_message_fact_check(DialogId dialog_id, const Message *m) const;
-
-  void send_update_message_unread_reactions(DialogId dialog_id, const Message *m, int32 unread_reaction_count) const;
-
-  void send_update_message_live_location_viewed(MessageFullId message_full_id);
-
-  void send_update_active_live_location_messages();
-
-  void send_update_delete_messages(DialogId dialog_id, vector<int64> &&message_ids, bool is_permanent) const;
-
-  void send_update_new_chat(Dialog *d, const char *source);
-
-  bool need_hide_dialog_draft_message(const Dialog *d) const;
-
-  void send_update_chat_draft_message(Dialog *d);
-
-  void send_update_last_message_if_needed(const Dialog *d, const Message *m, const char *source) const;
-
-  void send_update_chat_last_message(Dialog *d, const char *source);
-
-  void send_update_chat_last_message_impl(const Dialog *d, const char *source) const;
-
-  void send_update_unread_message_count(DialogList &list, DialogId dialog_id, bool force, const char *source,
-                                        bool from_database = false);
-
-  void send_update_unread_chat_count(DialogList &list, DialogId dialog_id, bool force, const char *source,
-                                     bool from_database = false);
-
-  void send_update_chat_read_inbox(const Dialog *d, bool force, const char *source);
-
-  void send_update_chat_read_outbox(const Dialog *d);
-
-  void send_update_chat_unread_mention_count(const Dialog *d);
-
-  void send_update_chat_unread_reaction_count(const Dialog *d, const char *source);
-
-  void send_update_chat_position(DialogListId dialog_list_id, const Dialog *d, const char *source) const;
-
-  void send_update_secret_chats_with_user_action_bar(const Dialog *d) const;
-
-  void send_update_chat_action_bar(Dialog *d);
-
-  void send_update_chat_business_bot_manage_bar(Dialog *d);
-
-  void send_update_chat_available_reactions(const Dialog *d);
-
-  void send_update_secret_chats_with_user_background(const Dialog *d) const;
-
-  void send_update_chat_background(const Dialog *d);
-
-  void send_update_secret_chats_with_user_theme(const Dialog *d) const;
-
-  void send_update_chat_theme(const Dialog *d);
-
-  void send_update_chat_pending_join_requests(const Dialog *d);
-
-  void send_update_chat_video_chat(const Dialog *d);
-
-  void send_update_chat_message_sender(const Dialog *d);
-
-  void send_update_chat_message_auto_delete_time(const Dialog *d);
-
-  void send_update_chat_has_scheduled_messages(Dialog *d, bool from_deletion);
-
-  void repair_dialog_action_bar(Dialog *d, const char *source);
-
-  void hide_dialog_action_bar(Dialog *d);
-
-  void repair_dialog_active_group_call_id(DialogId dialog_id);
-
-  void do_repair_dialog_active_group_call_id(DialogId dialog_id);
-
-  static Result<int32> get_message_schedule_date(td_api::object_ptr<td_api::MessageSchedulingState> &&scheduling_state);
-
-  tl_object_ptr<td_api::MessageSendingState> get_message_sending_state_object(const Message *m) const;
-
-  static tl_object_ptr<td_api::MessageSchedulingState> get_message_scheduling_state_object(
-      int32 send_date, bool video_processing_pending);
-
-  td_api::object_ptr<td_api::MessageContent> get_message_message_content_object(DialogId dialog_id,
-                                                                                const Message *m) const;
-
-  td_api::object_ptr<td_api::message> get_message_object(Dialog *d, MessageId message_id, const char *source);
-
-  td_api::object_ptr<td_api::message> get_message_object(const Dialog *d, MessageId message_id,
-                                                         const char *source) const;
-
-  td_api::object_ptr<td_api::message> get_message_object(DialogId dialog_id, const Message *m,
-                                                         const char *source) const;
-
-  static td_api::object_ptr<td_api::messages> get_messages_object(int32 total_count,
-                                                                  vector<tl_object_ptr<td_api::message>> &&messages,
-                                                                  bool skip_not_found);
-
-  td_api::object_ptr<td_api::message> get_business_message_message_object(
-      telegram_api::object_ptr<telegram_api::Message> &&message);
-
-  td_api::object_ptr<td_api::updateActiveLiveLocationMessages> get_update_active_live_location_messages_object() const;
-
-  static bool need_unread_counter(int64 dialog_order);
-
-  int32 get_dialog_total_count(const DialogList &list) const;
-
-  void repair_server_dialog_total_count(DialogListId dialog_list_id);
-
-  void repair_secret_chat_total_count(DialogListId dialog_list_id);
-
-  void on_get_secret_chat_total_count(DialogListId dialog_list_id, int32 total_count);
-
-  void recalc_unread_count(DialogListId dialog_list_id, int32 old_dialog_total_count, bool force);
-
-  td_api::object_ptr<td_api::updateUnreadMessageCount> get_update_unread_message_count_object(
-      const DialogList &list) const;
-
-  td_api::object_ptr<td_api::updateUnreadChatCount> get_update_unread_chat_count_object(const DialogList &list) const;
-
-  static void save_unread_chat_count(const DialogList &list);
-
-  void set_dialog_last_read_inbox_message_id(Dialog *d, MessageId message_id, int32 server_unread_count,
-                                             int32 local_unread_count, bool force_update, const char *source);
-
-  void set_dialog_last_read_outbox_message_id(Dialog *d, MessageId message_id);
-
-  void set_dialog_last_message_id(Dialog *d, MessageId last_message_id, const char *source, const Message *m = nullptr);
-
-  void set_dialog_first_database_message_id(Dialog *d, MessageId first_database_message_id, const char *source);
-
-  void set_dialog_last_database_message_id(Dialog *d, MessageId last_database_message_id, const char *source,
-                                           bool is_loaded_from_database = false);
-
-  void set_dialog_last_new_message_id(Dialog *d, MessageId last_new_message_id, const char *source);
-
-  void set_dialog_last_clear_history_date(Dialog *d, int32 date, MessageId last_clear_history_message_id,
-                                          const char *source, bool is_loaded_from_database = false);
-
-  static void set_dialog_unread_mention_count(Dialog *d, int32 unread_mention_count);
-
-  static void set_dialog_unread_reaction_count(Dialog *d, int32 unread_reaction_count);
-
-  void set_dialog_is_empty(Dialog *d, const char *source);
-
-  void remove_dialog_newer_messages(Dialog *d, MessageId from_message_id, const char *source);
-
-  int32 get_pinned_dialogs_limit(DialogListId dialog_list_id) const;
-
-  bool set_dialog_is_pinned(DialogId dialog_id, bool is_pinned);
-
-  bool set_dialog_is_pinned(DialogListId dialog_list_id, Dialog *d, bool is_pinned,
-                            bool need_update_dialog_lists = true);
-
-  void save_pinned_folder_dialog_ids(const DialogList &list) const;
-
-  void on_update_dialog_view_as_topics(Dialog *d, bool old_view_as_topics);
-
-  void set_dialog_is_forum(Dialog *d, bool is_forum);
-
-  void set_dialog_view_as_messages(Dialog *d, bool view_as_messages, const char *source);
-
-  void set_dialog_is_marked_as_unread(Dialog *d, bool is_marked_as_unread);
-
-  void set_dialog_is_translatable(Dialog *d, bool is_translatable);
-
-  void set_dialog_is_blocked(Dialog *d, bool is_blocked, bool is_blocked_for_stories);
-
-  void set_dialog_has_bots(Dialog *d, bool has_bots);
-
-  void set_dialog_last_pinned_message_id(Dialog *d, MessageId last_pinned_message_id);
-
-  void drop_dialog_last_pinned_message_id(Dialog *d);
-
-  void set_dialog_background(Dialog *d, BackgroundInfo &&background_info);
-
-  void set_dialog_theme_name(Dialog *d, string theme_name);
-
-  void set_dialog_pending_join_requests(Dialog *d, int32 pending_join_request_count,
-                                        vector<UserId> pending_join_request_user_ids);
-
-  void repair_dialog_scheduled_messages(Dialog *d);
-
-  void set_dialog_has_scheduled_server_messages(Dialog *d, bool has_scheduled_server_messages);
-
-  void set_dialog_has_scheduled_database_messages(DialogId dialog_id, bool has_scheduled_database_messages);
-
-  void set_dialog_has_scheduled_database_messages_impl(Dialog *d, bool has_scheduled_database_messages);
-
-  void set_dialog_folder_id(Dialog *d, FolderId folder_id);
-
-  void do_set_dialog_folder_id(Dialog *d, FolderId folder_id);
-
-  void set_dialog_reply_markup(Dialog *d, MessageId message_id);
-
-  void try_restore_dialog_reply_markup(Dialog *d, const Message *m);
-
-  void set_dialog_pinned_message_notification(Dialog *d, MessageId message_id, const char *source);
-
-  void remove_dialog_pinned_message_notification(Dialog *d, const char *source);
-
-  void remove_dialog_mention_notifications(Dialog *d);
-
-  void set_dialog_last_notification(DialogId dialog_id, NotificationGroupInfo &group_info, int32 last_notification_date,
-                                    NotificationId last_notification_id, const char *source);
-
-  void set_dialog_last_notification_checked(DialogId dialog_id, NotificationGroupInfo &group_info,
-                                            int32 last_notification_date, NotificationId last_notification_id,
-                                            const char *source);
-
-  bool update_dialog_notification_settings(DialogId dialog_id, DialogNotificationSettings *current_settings,
-                                           DialogNotificationSettings &&new_settings);
-
-  void schedule_dialog_unmute(DialogId dialog_id, bool use_default, int32 mute_until, int32 unix_time);
-
-  void update_dialog_unmute_timeout(Dialog *d, bool &old_use_default, int32 &old_mute_until, bool new_use_default,
-                                    int32 new_mute_until);
-
-  void on_dialog_unmute(DialogId dialog_id);
-
-  bool update_dialog_silent_send_message(Dialog *d, bool silent_send_message);
-
-  void set_dialog_message_ttl(Dialog *d, MessageTtl message_ttl);
-
-  bool can_add_message_tag(DialogId dialog_id, const MessageReactions *reactions) const;
-
-  ChatReactions get_message_available_reactions(const Dialog *d, const Message *m, bool disallow_custom_for_non_premium,
-                                                ReactionUnavailabilityReason *unavailability_reason);
-
-  DialogId get_my_reaction_dialog_id(const Dialog *d) const;
-
-  void drop_message_pending_paid_reactions(const Dialog *d, Message *m);
-
-  void set_message_reactions(Dialog *d, Message *m, bool is_big, bool add_to_recent, Promise<Unit> &&promise);
-
-  void on_set_message_reactions(MessageFullId message_full_id, Result<Unit> result, Promise<Unit> promise);
-
-  void set_dialog_available_reactions(Dialog *d, ChatReactions &&available_reactions);
-
-  void set_dialog_next_available_reactions_generation(Dialog *d, uint32 generation);
-
-  void hide_dialog_message_reactions(Dialog *d);
-
-  ChatReactions get_active_reactions(const ChatReactions &available_reactions) const;
-
-  ChatReactions get_dialog_active_reactions(const Dialog *d) const;
-
-  ChatReactions get_message_active_reactions(const Dialog *d, const Message *m) const;
-
-  static bool need_poll_dialog_message_reactions(const Dialog *d);
-
-  static bool need_poll_message_reactions(const Dialog *d, const Message *m);
-
-  void on_send_dialog_action_timeout(DialogId dialog_id);
-
-  void cancel_dialog_action(DialogId dialog_id, const Message *m);
-
-  Dialog *get_dialog_by_message_id(MessageId message_id);
-
-  MessageId get_message_id_by_random_id(Dialog *d, int64 random_id, const char *source);
-
-  Dialog *add_dialog_for_new_message(DialogId dialog_id, bool have_last_message, bool *need_update_dialog_pos,
-                                     const char *source);
-
-  Dialog *add_dialog(DialogId dialog_id, const char *source);
-
-  Dialog *add_new_dialog(unique_ptr<Dialog> &&dialog, bool is_loaded_from_database, const char *source);
-
-  void fix_new_dialog(Dialog *d, unique_ptr<DraftMessage> &&draft_message, unique_ptr<Message> &&last_database_message,
-                      MessageId last_database_message_id, int64 order, int32 last_clear_history_date,
-                      MessageId last_clear_history_message_id, DialogId default_join_group_call_as_dialog_id,
-                      DialogId default_send_message_as_dialog_id, bool need_drop_default_send_message_as_dialog_id,
-                      bool is_loaded_from_database, const char *source);
-
-  bool add_pending_dialog_data(Dialog *d, unique_ptr<Message> &&last_database_message,
-                               unique_ptr<DraftMessage> &&draft_message);
-
-  void fix_dialog_action_bar(const Dialog *d, DialogActionBar *action_bar);
-
-  void fix_dialog_business_bot_manage_bar(DialogId dialog_id, BusinessBotManageBar *business_bot_manage_bar);
-
-  td_api::object_ptr<td_api::ChatActionBar> get_chat_action_bar_object(const Dialog *d) const;
-
-  td_api::object_ptr<td_api::businessBotManageBar> get_business_bot_manage_bar_object(const Dialog *d) const;
-
-  td_api::object_ptr<td_api::chatBackground> get_chat_background_object(const Dialog *d) const;
-
-  string get_dialog_theme_name(const Dialog *d) const;
-
-  td_api::object_ptr<td_api::chatJoinRequestsInfo> get_chat_join_requests_info_object(const Dialog *d) const;
-
-  td_api::object_ptr<td_api::videoChat> get_video_chat_object(const Dialog *d) const;
-
-  td_api::object_ptr<td_api::MessageSender> get_default_message_sender_object(const Dialog *d) const;
-
-  td_api::object_ptr<td_api::chat> get_chat_object(const Dialog *d, const char *source) const;
-
-  Dialog *get_dialog(DialogId dialog_id);
-  const Dialog *get_dialog(DialogId dialog_id) const;
-
-  Dialog *get_dialog_force(DialogId dialog_id, const char *source = "get_dialog_force");
-
-  Dialog *on_load_dialog_from_database(DialogId dialog_id, BufferSlice &&value, const char *source);
-
-  void on_get_dialogs_from_database(FolderId folder_id, int32 limit, DialogDbGetDialogsResult &&dialogs,
-                                    Promise<Unit> &&promise);
-
-  Result<Dialog *> check_dialog_access(DialogId dialog_id, bool allow_secret_chats, AccessRights access_rights,
-                                       const char *source);
-
-  void send_get_dialog_query(DialogId dialog_id, Promise<Unit> &&promise, uint64 log_event_id, const char *source);
-
-  vector<DialogId> get_pinned_dialog_ids(DialogListId dialog_list_id) const;
-
-  bool set_folder_pinned_dialogs(FolderId folder_id, vector<DialogId> old_dialog_ids, vector<DialogId> new_dialog_ids);
-
-  void reload_pinned_dialogs(DialogListId dialog_list_id, Promise<Unit> &&promise);
-
-  void update_dialogs_hints(const Dialog *d);
-  void update_dialogs_hints_rating(const Dialog *d);
-
-  vector<FolderId> get_dialog_list_folder_ids(const DialogList &list) const;
-
-  bool has_dialogs_from_folder(const DialogList &list, const DialogFolder &folder) const;
-
-  static bool is_dialog_in_list(const Dialog *d, DialogListId dialog_list_id);
-
-  void add_dialog_to_list(Dialog *d, DialogListId dialog_list_id);
-
-  void remove_dialog_from_list(Dialog *d, DialogListId dialog_list_id);
-
-  DialogFilterDialogInfo get_dialog_info_for_dialog_filter(const Dialog *d) const;
-
-  bool need_dialog_in_list(const Dialog *d, const DialogList &list) const;
-
-  static bool need_send_update_chat_position(const DialogPositionInList &old_position,
-                                             const DialogPositionInList &new_position);
-
-  DialogPositionInList get_dialog_position_in_list(const DialogList *list, const Dialog *d, bool actual = false) const;
-
-  std::unordered_map<DialogListId, DialogPositionInList, DialogListIdHash> get_dialog_positions(const Dialog *d) const;
-
-  static vector<DialogListId> get_dialog_list_ids(const Dialog *d);
-
-  DialogListView get_dialog_lists(const Dialog *d);
-
-  DialogList &add_dialog_list(DialogListId dialog_list_id);
-
-  DialogList *get_dialog_list(DialogListId dialog_list_id);
-  const DialogList *get_dialog_list(DialogListId dialog_list_id) const;
-
-  DialogFolder *get_dialog_folder(FolderId folder_id);
-  const DialogFolder *get_dialog_folder(FolderId folder_id) const;
-
-  void add_edited_message(DialogId dialog_id, MessageId message_id, unique_ptr<EditedMessage> edited_message);
-
-  EditedMessage *get_edited_message(DialogId dialog_id, MessageId message_id);
-
-  const EditedMessage *get_edited_message(DialogId dialog_id, MessageId message_id) const;
-
-  MessageContent *get_edited_message_content(MessageFullId message_full_id);
-
-  const MessageContent *get_edited_message_content(MessageFullId message_full_id) const;
-
-  void delete_edited_message(DialogId dialog_id, MessageId message_id);
-
-  static Message *get_message(Dialog *d, MessageId message_id);
-  static const Message *get_message(const Dialog *d, MessageId message_id);
-  static const Message *get_message_static(const Dialog *d, MessageId message_id);
-
-  Message *get_message(MessageFullId message_full_id);
-  const Message *get_message(MessageFullId message_full_id) const;
-
-  bool have_message_force(Dialog *d, MessageId message_id, const char *source);
-
-  Message *get_message_force(Dialog *d, MessageId message_id, const char *source);
-
-  Message *get_message_force(MessageFullId message_full_id, const char *source);
-
-  void get_message_force_from_server(Dialog *d, MessageId message_id, Promise<Unit> &&promise,
-                                     tl_object_ptr<telegram_api::InputMessage> input_message = nullptr);
-
-  Message *on_get_message_from_database(const MessageDbMessage &message, bool is_scheduled, const char *source);
-
-  Message *on_get_message_from_database(Dialog *d, const MessageDbDialogMessage &message, bool is_scheduled,
-                                        const char *source);
-
-  Message *on_get_message_from_database(Dialog *d, MessageId message_id, const BufferSlice &value, bool is_scheduled,
-                                        const char *source);
-
-  vector<MessageId> on_get_messages_from_database(Dialog *d, vector<MessageDbDialogMessage> &&messages,
-                                                  MessageId first_message_id, bool &have_error, const char *source);
-
-  void get_dialog_message_by_date_from_server(const Dialog *d, int32 date, bool after_database_search,
-                                              Promise<td_api::object_ptr<td_api::message>> &&promise);
-
-  void on_get_dialog_message_by_date_from_database(DialogId dialog_id, int32 date,
-                                                   Result<MessageDbDialogMessage> result,
-                                                   Promise<td_api::object_ptr<td_api::message>> promise);
-
-  std::pair<bool, int32> get_dialog_mute_until(DialogId dialog_id, const Dialog *d) const;
-
-  int64 get_dialog_notification_ringtone_id(DialogId dialog_id, const Dialog *d) const;
-
-  DialogNotificationSettings *get_dialog_notification_settings(DialogId dialog_id, bool force);
-
-  int64 get_message_random_id(Dialog *d, MessageId message_id);
-
-  vector<FileId> get_message_file_ids(const Message *m) const;
-
-  void cancel_upload_message_content_files(const vector<FileUploadId> &file_upload_ids,
-                                           const vector<FileUploadId> &thumbnail_file_upload_ids);
-
-  static void cancel_upload_file(FileUploadId file_upload_id, const char *source);
-
-  void cancel_send_message_query(DialogId dialog_id, Message *m);
-
-  void cancel_send_deleted_message(DialogId dialog_id, Message *m, bool is_permanently_deleted);
-
-  bool is_discussion_message(DialogId dialog_id, const Message *m) const;
-
-  bool has_message_sender_user_id(DialogId dialog_id, const Message *m) const;
-
-  int32 get_message_own_max_media_timestamp(const Message *m) const;
-
-  static int32 get_message_max_media_timestamp(const Message *m);
-
-  static bool get_message_disable_web_page_preview(const Message *m);
-
-  static int32 get_message_flags(const Message *m);
-
-  tl_object_ptr<telegram_api::InputPeer> get_send_message_as_input_peer(const Message *m) const;
-
-  void ttl_read_history(Dialog *d, bool is_outgoing, MessageId from_message_id, MessageId till_message_id,
-                        double view_date);
-  void ttl_read_history_impl(DialogId dialog_id, bool is_outgoing, MessageId from_message_id, MessageId till_message_id,
-                             double view_date);
-  void ttl_on_view(const Dialog *d, Message *m, double view_date, double now);
-  bool ttl_on_open(Dialog *d, Message *m, double now, bool is_local_read, int32 read_date);
-  void ttl_register_message(DialogId dialog_id, const Message *m, double now);
-  void ttl_unregister_message(DialogId dialog_id, const Message *m, const char *source);
-  void ttl_period_register_message(DialogId dialog_id, const Message *m, double server_time);
-  void ttl_period_unregister_message(DialogId dialog_id, const Message *m);
-  void ttl_loop(double now);
-  void ttl_update_timeout(double now);
-
-  void on_message_ttl_expired(Dialog *d, Message *m);
-
-  void on_message_ttl_expired_impl(Dialog *d, Message *m, bool is_message_in_dialog);
-
-  void start_up() final;
-
-  void loop() final;
-
-  void tear_down() final;
-
-  void hangup() final;
-
-  void create_folders(int source);
-
-  void init();
-
-  void ttl_db_loop();
-
-  void ttl_db_on_result(Result<std::vector<MessageDbMessage>> r_result, bool dummy);
-
-  void schedule_restore_missing_messages_after_get_difference();
-
-  void restore_missing_messages_after_get_difference();
-
-  void on_restore_missing_message_after_get_difference(MessageFullId message_full_id, MessageId old_message_id,
-                                                       Result<Unit> result);
-
-  void on_get_message_link_dialog(MessageLinkInfo &&info, DialogId dialog_id, Promise<MessageLinkInfo> &&promise);
-
-  void on_get_message_link_message(MessageLinkInfo &&info, DialogId dialog_id, Promise<MessageLinkInfo> &&promise);
-
-  void on_get_message_link_discussion_message(MessageLinkInfo &&info, DialogId comment_dialog_id,
-                                              Promise<MessageLinkInfo> &&promise);
-
-  void on_get_discussion_message(DialogId dialog_id, MessageId message_id, MessageThreadInfo &&message_thread_info,
-                                 Promise<MessageThreadInfo> &&promise);
-
-  static MessageId get_first_database_message_id_by_index(const Dialog *d, MessageSearchFilter filter);
-
-  void get_message_calendar_from_server(DialogId dialog_id, SavedMessagesTopicId saved_messages_topic_id,
-                                        MessageId from_message_id, MessageSearchFilter filter,
-                                        Promise<td_api::object_ptr<td_api::messageCalendar>> &&promise);
-
-  void on_get_message_calendar_from_database(DialogId dialog_id, MessageId from_message_id,
-                                             MessageId first_db_message_id, MessageSearchFilter filter,
-                                             Result<MessageDbCalendar> r_calendar,
-                                             Promise<td_api::object_ptr<td_api::messageCalendar>> promise);
-
-  void on_search_dialog_message_db_result(int64 random_id, DialogId dialog_id, MessageId from_message_id,
-                                          MessageId first_db_message_id, MessageSearchFilter filter, int32 offset,
-                                          int32 limit, Result<vector<MessageDbDialogMessage>> r_messages,
-                                          Promise<Unit> promise);
-
-  void on_message_db_fts_result(Result<MessageDbFtsResult> result, string offset, int32 limit,
-                                Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void on_message_db_calls_result(Result<MessageDbCallsResult> result, MessageId first_db_message_id,
-                                  MessageId offset_message_id, int32 limit, MessageSearchFilter filter,
-                                  Promise<td_api::object_ptr<td_api::foundMessages>> &&promise);
-
-  void process_viewed_message(Dialog *d, const vector<MessageId> &viewed_message_ids, bool is_first);
-
-  void on_load_active_live_location_message_full_ids_from_database(string value);
-
-  bool try_add_active_live_location(DialogId dialog_id, const Message *m);
-
-  bool add_active_live_location(MessageFullId message_full_id);
-
-  bool delete_active_live_location(MessageFullId message_full_id);
-
-  void schedule_active_live_location_expiration();
-
-  void save_active_live_locations();
-
-  void on_message_live_location_viewed(Dialog *d, const Message *m);
-
-  void view_message_live_location_on_server(int64 task_id);
-
-  void view_message_live_location_on_server_impl(int64 task_id, MessageFullId message_full_id);
-
-  void on_message_live_location_viewed_on_server(int64 task_id);
-
-  void try_add_bot_command_message_id(DialogId dialog_id, const Message *m);
-
-  void delete_bot_command_message_id(DialogId dialog_id, MessageId message_id);
-
-  void add_message_file_sources(DialogId dialog_id, const Message *m, const char *source);
-
-  void remove_message_file_sources(DialogId dialog_id, const Message *m, const char *source);
-
-  void change_message_files(DialogId dialog_id, const Message *m, const vector<FileId> &old_file_ids,
-                            const char *source);
-
-  Result<unique_ptr<ReplyMarkup>> get_dialog_reply_markup(
-      DialogId dialog_id, tl_object_ptr<td_api::ReplyMarkup> &&reply_markup) const TD_WARN_UNUSED_RESULT;
-
-  bool get_dialog_view_as_topics(const Dialog *d) const;
-
-  bool get_dialog_has_scheduled_messages(const Dialog *d) const;
-
-  static DialogScheduledMessages *add_dialog_scheduled_messages(Dialog *d);
-
-  static NotificationInfo *add_dialog_notification_info(Dialog *d);
-
-  static int64 get_dialog_order(MessageId message_id, int32 message_date);
-
-  bool is_dialog_sponsored(const Dialog *d) const;
-
-  int64 get_dialog_base_order(const Dialog *d) const;
-
-  int64 get_dialog_private_order(const DialogList *list, const Dialog *d) const;
-
-  td_api::object_ptr<td_api::chatPosition> get_chat_position_object(DialogListId dialog_list_id, const Dialog *d) const;
-
-  vector<td_api::object_ptr<td_api::chatPosition>> get_chat_positions_object(const Dialog *d) const;
-
-  bool update_dialog_draft_message(Dialog *d, unique_ptr<DraftMessage> &&draft_message, bool from_update,
-                                   bool need_update_dialog_pos);
-
-  void clear_dialog_draft_by_sent_message(Dialog *d, const Message *m, bool need_update_dialog_pos);
-
-  void save_dialog_draft_message_on_server(DialogId dialog_id);
-
-  void on_saved_dialog_draft_message(DialogId dialog_id, uint64 generation);
-
-  void update_dialog_notification_settings_on_server(DialogId dialog_id, bool from_binlog);
-
-  void send_update_dialog_notification_settings_query(const Dialog *d, Promise<Unit> &&promise);
-
-  void on_updated_dialog_notification_settings(DialogId dialog_id, uint64 generation);
-
-  void set_dialog_folder_id_on_server(DialogId dialog_id, bool from_binlog);
-
-  void on_updated_dialog_folder_id(DialogId dialog_id, uint64 generation);
-
-  int64 get_next_pinned_dialog_order();
-
-  void update_dialog_pos(Dialog *d, const char *source, bool need_send_update = true,
-                         bool is_loaded_from_database = false);
-
-  bool set_dialog_order(Dialog *d, int64 new_order, bool need_send_update, bool is_loaded_from_database,
-                        const char *source);
-
-  void update_dialog_lists(Dialog *d,
-                           std::unordered_map<DialogListId, DialogPositionInList, DialogListIdHash> &&old_positions,
-                           bool need_send_update, bool is_loaded_from_database, const char *source);
-
-  void update_last_dialog_date(FolderId folder_id);
-
-  bool do_update_list_last_pinned_dialog_date(DialogList &list) const;
-
-  void update_list_last_pinned_dialog_date(DialogList &list);
-
-  bool do_update_list_last_dialog_date(DialogList &list, const vector<FolderId> &folder_ids) const;
-
-  void update_list_last_dialog_date(DialogList &list);
-
-  static string get_channel_pts_key(DialogId dialog_id);
-
-  int32 load_channel_pts(DialogId dialog_id) const;
-
-  void set_channel_pts(Dialog *d, int32 new_pts, const char *source);
-
-  bool need_channel_difference_to_add_message(DialogId dialog_id, MessageId message_id);
-
-  bool running_get_channel_difference(DialogId dialog_id) const;
-
-  void retry_get_channel_difference_later(DialogId dialog_id);
-
-  void on_channel_get_difference_timeout(DialogId dialog_id);
-
-  void update_expected_channel_pts(DialogId dialog_id, int32 expected_pts);
-
-  void update_expected_channel_max_message_id(DialogId dialog_id, MessageId expected_max_message_id);
-
-  void schedule_get_channel_difference(DialogId dialog_id, int32 expected_pts, MessageId expected_max_message_id,
-                                       double delay, const char *source);
-
-  void get_channel_difference(DialogId dialog_id, int32 pts, int32 expected_pts, MessageId expected_max_message_id,
-                              bool force, const char *source, bool is_old = false);
-
-  void do_get_channel_difference(DialogId dialog_id, int32 pts, bool force,
-                                 tl_object_ptr<telegram_api::InputChannel> &&input_channel, bool is_old,
-                                 const char *source);
-
-  void process_pending_get_channel_differences();
-
-  void process_get_channel_difference_updates(DialogId dialog_id, int32 new_pts,
-                                              vector<tl_object_ptr<telegram_api::Message>> &&new_messages,
-                                              vector<tl_object_ptr<telegram_api::Update>> &&other_updates);
-
-  void on_get_channel_dialog(DialogId dialog_id, MessageId last_message_id, MessageId read_inbox_max_message_id,
-                             int32 server_unread_count, int32 unread_mention_count, int32 unread_reaction_count,
-                             MessageId read_outbox_max_message_id,
-                             vector<tl_object_ptr<telegram_api::Message>> &&messages);
-
-  void after_get_channel_difference(DialogId dialog_id, bool success);
-
-  static void on_channel_get_difference_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_pending_message_views_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_pending_message_live_location_view_timeout_callback(void *messages_manager_ptr, int64 task_id);
-
-  static void on_pending_draft_message_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_pending_read_history_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_pending_updated_dialog_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_pending_unload_dialog_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_dialog_unmute_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_pending_send_dialog_action_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_preload_folder_dialog_list_timeout_callback(void *messages_manager_ptr, int64 folder_id_int);
-
-  static void on_update_viewed_messages_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_send_update_chat_read_inbox_timeout_callback(void *messages_manager_ptr, int64 dialog_id_int);
-
-  static void on_live_location_expire_timeout_callback(void *messages_manager_ptr);
-
-  static void on_restore_missing_messages_timeout_callback(void *messages_manager_ptr);
-
-  void on_live_location_expire_timeout();
-
-  void load_secret_thumbnail(FileUploadId thumbnail_file_upload_id);
-
-  void on_upload_media(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-                       telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_encrypted_file);
-
-  void on_upload_media_error(FileUploadId file_upload_id, Status status);
-
-  void on_load_secret_thumbnail(FileUploadId thumbnail_file_upload_id, BufferSlice thumbnail);
-
-  void on_upload_thumbnail(FileUploadId thumbnail_file_upload_id,
-                           telegram_api::object_ptr<telegram_api::InputFile> thumbnail_input_file);
-
-  void add_sponsored_dialog(const Dialog *d, DialogSource source);
-
-  void save_sponsored_dialog();
-
-  Dialog *get_service_notifications_dialog();
-
-  static void extract_authentication_codes(DialogId dialog_id, const Message *m, vector<string> &authentication_codes);
-
-  void save_auth_notification_ids();
-
-  MessageId get_next_message_id(Dialog *d, MessageType type) const;
-
-  MessageId get_next_local_message_id(Dialog *d) const;
-
-  MessageId get_next_yet_unsent_message_id(Dialog *d) const;
-
-  static MessageId get_next_yet_unsent_scheduled_message_id(Dialog *d, int32 date);
-
-  void reget_message_from_server_if_needed(DialogId dialog_id, const Message *m);
-
-  void speculatively_update_active_group_call_id(Dialog *d, const Message *m);
-
-  void speculatively_update_channel_participants(DialogId dialog_id, const Message *m);
-
-  void update_sent_message_contents(DialogId dialog_id, const Message *m);
-
-  void update_used_hashtags(DialogId dialog_id, const Message *m);
-
-  void update_top_dialogs(DialogId dialog_id, const Message *m);
-
-  void update_forward_count(DialogId dialog_id, const Message *m);
-
-  void update_forward_count(MessageFullId message_full_id, int32 update_date);
-
-  void update_has_outgoing_messages(DialogId dialog_id, const Message *m);
-
-  string get_message_search_text(const Message *m) const;
-
-  unique_ptr<Message> parse_message(Dialog *d, MessageId expected_message_id, const BufferSlice &value,
-                                    bool is_scheduled);
-
-  unique_ptr<Dialog> parse_dialog(DialogId dialog_id, const BufferSlice &value, const char *source);
-
-  void load_calls_db_state();
-  void save_calls_db_state();
-
-  void add_message_dependencies(Dependencies &dependencies, const Message *m) const;
-
-  static void save_send_message_log_event(DialogId dialog_id, const Message *m);
-
-  static uint64 save_reget_dialog_log_event(DialogId dialog_id);
-
-  static uint64 save_forward_messages_log_event(DialogId to_dialog_id, DialogId from_dialog_id,
-                                                const vector<Message *> &messages, const vector<MessageId> &message_ids,
-                                                bool drop_author, bool drop_media_captions);
-
-  void suffix_load_loop(const Dialog *d, SuffixLoadQueries *queries);
-  void suffix_load_update_first_message_id(const Dialog *d, SuffixLoadQueries *queries);
-  void suffix_load_query_ready(DialogId dialog_id);
-  void suffix_load_add_query(Dialog *d, std::pair<Promise<Unit>, std::function<bool(const Message *)>> query);
-  void suffix_load_till_date(Dialog *d, int32 date, Promise<Unit> promise);
-  void suffix_load_till_message_id(Dialog *d, MessageId message_id, Promise<Unit> promise);
-
-  bool is_deleted_secret_chat(const Dialog *d) const;
-
-  static int32 get_message_schedule_date(const Message *m);
-
-  static int32 get_message_original_date(const Message *m);
-
-  static DialogId get_message_original_sender(const Message *m);
-
-  static DialogId get_message_sender(const Message *m);
-
-  class UploadMediaCallback;
-  class UploadThumbnailCallback;
-
-  std::shared_ptr<UploadMediaCallback> upload_media_callback_;
-  std::shared_ptr<UploadThumbnailCallback> upload_thumbnail_callback_;
-
-  double last_channel_pts_jump_warning_time_ = 0;
-
-  struct UploadedFileInfo {
-    MessageFullId message_full_id;
-    int32 media_pos;
-    uint64 edit_generation;
-  };
-  FlatHashMap<FileUploadId, UploadedFileInfo, FileUploadIdHash> being_uploaded_files_;
-  struct UploadedThumbnailInfo {
-    MessageFullId message_full_id;
-    FileUploadId file_upload_id;                                   // original file upload identifier
-    telegram_api::object_ptr<telegram_api::InputFile> input_file;  // original file InputFile
-    int32 media_pos;
-    uint64 edit_generation;
-  };
-  FlatHashMap<FileUploadId, UploadedThumbnailInfo, FileUploadIdHash> being_uploaded_thumbnails_;
-  struct UploadedSecretThumbnailInfo {
-    MessageFullId message_full_id;
-    telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file;  // original file InputEncryptedFile
-  };
-  FlatHashMap<FileUploadId, UploadedSecretThumbnailInfo, FileUploadIdHash> being_loaded_secret_thumbnails_;
-
-  // TTL
-  class TtlNode final : private HeapNode {
-   public:
-    TtlNode(DialogId dialog_id, MessageId message_id, bool by_ttl_period)
-        : message_full_id_(dialog_id, message_id), by_ttl_period_(by_ttl_period) {
-    }
-
-    MessageFullId message_full_id_;
-    bool by_ttl_period_;
-
-    HeapNode *as_heap_node() const {
-      return const_cast<HeapNode *>(static_cast<const HeapNode *>(this));
-    }
-    static TtlNode *from_heap_node(HeapNode *node) {
-      return static_cast<TtlNode *>(node);
-    }
-
-    bool operator==(const TtlNode &other) const {
-      return message_full_id_ == other.message_full_id_ && by_ttl_period_ == other.by_ttl_period_;
-    }
-  };
-  struct TtlNodeHash {
-    uint32 operator()(const TtlNode &ttl_node) const {
-      return MessageFullIdHash()(ttl_node.message_full_id_) * 2 + static_cast<uint32>(ttl_node.by_ttl_period_);
-    }
-  };
-  std::unordered_set<TtlNode, TtlNodeHash> ttl_nodes_;
-  KHeap<double> ttl_heap_;
-  Slot ttl_slot_;
-
-  enum YieldType : int32 { None, TtlDb };  // None must be first
-  double ttl_db_next_request_time_ = 0;
-  int32 ttl_db_next_limit_ = DEFAULT_LOADED_EXPIRED_MESSAGES;
-  bool ttl_db_has_query_ = false;
-  Slot ttl_db_slot_;
-
-  FlatHashMap<int64, MessageFullId> being_sent_messages_;  // message_random_id -> message
-
-  FlatHashMap<MessageFullId, MessageId, MessageFullIdHash> update_message_ids_;  // new_message_id -> temporary_id
-  FlatHashMap<DialogId, FlatHashMap<ScheduledServerMessageId, MessageId, ScheduledServerMessageIdHash>,
-              DialogIdHash>
-      update_scheduled_message_ids_;                                              // new_message_id -> temporary_id
-  FlatHashMap<MessageFullId, MessageId, MessageFullIdHash> messages_to_restore_;  // new_message_id -> temporary_id
-
-  FlatHashSet<MessageFullId, MessageFullIdHash> published_video_message_full_ids_;
-
-  const char *debug_add_message_to_dialog_fail_reason_ = "";
-
-  struct PendingMessageGroupSend {
-    DialogId dialog_id;
-    size_t finished_count = 0;
-    vector<MessageId> message_ids;
-    vector<bool> is_finished;
-    vector<Status> results;
-  };
-  FlatHashMap<int64, PendingMessageGroupSend> pending_message_group_sends_;  // media_album_id -> ...
-
-  struct PendingPaidMediaGroupSend {
-    size_t finished_count = 0;
-    vector<bool> is_finished;
-    vector<Status> results;
-  };
-  FlatHashMap<MessageFullId, PendingPaidMediaGroupSend, MessageFullIdHash> pending_paid_media_group_sends_;
-
-  WaitFreeHashMap<MessageId, DialogId, MessageIdHash> message_id_to_dialog_id_;
-  FlatHashMap<MessageId, DialogId, MessageIdHash> last_clear_history_message_id_to_dialog_id_;
-
-  struct PendingCreatedDialog {
-    td_api::object_ptr<td_api::failedToAddMembers> failed_to_add_members_;
-    Promise<td_api::object_ptr<td_api::createdBasicGroupChat>> chat_promise_;
-    Promise<td_api::object_ptr<td_api::chat>> channel_promise_;
-  };
-  FlatHashMap<DialogId, PendingCreatedDialog, DialogIdHash> pending_created_dialogs_;
-
-  bool running_get_difference_ = false;  // true after before_get_difference and false after after_get_difference
-
-  WaitFreeHashMap<DialogId, unique_ptr<Dialog>, DialogIdHash> dialogs_;
-  int64 added_message_count_ = 0;
-
-  FlatHashSet<DialogId, DialogIdHash> loaded_dialogs_;  // dialogs loaded from database, but not added to dialogs_
-  FlatHashSet<DialogId, DialogIdHash> failed_to_load_dialogs_;
-
-  FlatHashSet<DialogId, DialogIdHash> postponed_chat_read_inbox_updates_;
-
-  FlatHashMap<int64, FoundDialogMessages> found_dialog_messages_;  // random_id -> FoundDialogMessages
-  FlatHashMap<int64, DialogId> found_dialog_messages_dialog_id_;   // random_id -> dialog_id
-
-  struct MessageEmbeddingCodes {
-    FlatHashMap<MessageId, string, MessageIdHash> embedding_codes_;
-  };
-  FlatHashMap<DialogId, MessageEmbeddingCodes, DialogIdHash> message_embedding_codes_[2];
-
-  FlatHashMap<DialogId, vector<Promise<Unit>>, DialogIdHash> get_dialog_queries_;
-  FlatHashMap<DialogId, uint64, DialogIdHash> get_dialog_query_log_event_id_;
-
-  FlatHashMap<MessageFullId, int32, MessageFullIdHash> replied_by_yet_unsent_messages_;
-  FlatHashMap<MessageFullId, FlatHashSet<MessageFullId, MessageFullIdHash>, MessageFullIdHash>
-      replied_yet_unsent_messages_;
-
-  // message_full_id -> replies with media timestamps
-  FlatHashMap<MessageFullId, FlatHashSet<MessageFullId, MessageFullIdHash>, MessageFullIdHash>
-      message_to_replied_media_timestamp_messages_;
-
-  // story_full_id -> replies with media timestamps
-  FlatHashMap<StoryFullId, FlatHashSet<MessageFullId, MessageFullIdHash>, StoryFullIdHash>
-      story_to_replied_media_timestamp_messages_;
-
-  FlatHashMap<NotificationGroupId, DialogId, NotificationGroupIdHash> notification_group_id_to_dialog_id_;
-
-  uint64 current_message_edit_generation_ = 0;
-
-  std::unordered_set<DialogListId, DialogListIdHash> postponed_unread_message_count_updates_;
-  std::unordered_set<DialogListId, DialogListIdHash> postponed_unread_chat_count_updates_;
-
-  int64 current_pinned_dialog_order_ = static_cast<int64>(MIN_PINNED_DIALOG_DATE) << 32;
-
-  int64 current_dialog_list_unique_id_ = 0;
-  std::unordered_map<DialogListId, DialogList, DialogListIdHash> dialog_lists_;
-  std::unordered_map<FolderId, DialogFolder, FolderIdHash> dialog_folders_;
-
-  struct PendingGetChannelDifference {
-    DialogId dialog_id_;
-    int32 pts_ = 0;
-    int32 limit_ = 0;
-    bool force_ = false;
-    telegram_api::object_ptr<telegram_api::InputChannel> input_channel_;
-    const char *source_ = nullptr;
-
-    PendingGetChannelDifference(DialogId dialog_id, int32 pts, int32 limit, bool force,
-                                telegram_api::object_ptr<telegram_api::InputChannel> &&input_channel,
-                                const char *source)
-        : dialog_id_(dialog_id)
-        , pts_(pts)
-        , limit_(limit)
-        , force_(force)
-        , input_channel_(std::move(input_channel))
-        , source_(source) {
-    }
-  };
-  std::queue<unique_ptr<PendingGetChannelDifference>> pending_get_channel_differences_;
-  int32 get_channel_difference_count_ = 0;
-
-  FlatHashMap<DialogId, string, DialogIdHash> active_get_channel_differences_;
-  FlatHashMap<DialogId, uint64, DialogIdHash> get_channel_difference_to_log_event_id_;
-  FlatHashMap<DialogId, int32, DialogIdHash> channel_get_difference_retry_timeouts_;
-  FlatHashMap<DialogId, std::multimap<int32, PendingPtsUpdate>, DialogIdHash> postponed_channel_updates_;
-  FlatHashSet<DialogId, DialogIdHash> is_channel_difference_finished_;
-  FlatHashMap<DialogId, int32, DialogIdHash> expected_channel_pts_;
-  FlatHashMap<DialogId, MessageId, DialogIdHash> expected_channel_max_message_id_;
-
-  MultiTimeout channel_get_difference_timeout_{"ChannelGetDifferenceTimeout"};
-  MultiTimeout channel_get_difference_retry_timeout_{"ChannelGetDifferenceRetryTimeout"};
-  MultiTimeout pending_message_views_timeout_{"PendingMessageViewsTimeout"};
-  MultiTimeout pending_message_live_location_view_timeout_{"PendingMessageLiveLocationViewTimeout"};
-  MultiTimeout pending_draft_message_timeout_{"PendingDraftMessageTimeout"};
-  MultiTimeout pending_read_history_timeout_{"PendingReadHistoryTimeout"};
-  MultiTimeout pending_updated_dialog_timeout_{"PendingUpdatedDialogTimeout"};
-  MultiTimeout pending_unload_dialog_timeout_{"PendingUnloadDialogTimeout"};
-  MultiTimeout dialog_unmute_timeout_{"DialogUnmuteTimeout"};
-  MultiTimeout pending_send_dialog_action_timeout_{"PendingSendDialogActionTimeout"};
-  MultiTimeout preload_folder_dialog_list_timeout_{"PreloadFolderDialogListTimeout"};
-  MultiTimeout update_viewed_messages_timeout_{"UpdateViewedMessagesTimeout"};
-  MultiTimeout send_update_chat_read_inbox_timeout_{"SendUpdateChatReadInboxTimeout"};
-
-  Timeout live_location_expire_timeout_;
-  Timeout restore_missing_messages_timeout_;
-
-  Hints dialogs_hints_;  // search dialogs by title and usernames
-
-  FlatHashSet<MessageFullId, MessageFullIdHash> active_live_location_message_full_ids_;
-  bool are_active_live_location_messages_loaded_ = false;
-  vector<Promise<Unit>> load_active_live_location_messages_queries_;
-
-  FlatHashMap<DialogId, vector<Promise<Unit>>, DialogIdHash> load_scheduled_messages_from_database_queries_;
-
-  struct GetDialogsTask {
-    DialogListId dialog_list_id;
-    int64 dialog_list_unique_id;
-    int32 limit;
-    int32 retry_count;
-    DialogDate last_dialog_date = MIN_DIALOG_DATE;
-    Promise<td_api::object_ptr<td_api::chats>> promise;
-  };
-
-  FlatHashMap<int64, GetDialogsTask> get_dialogs_tasks_;
-  int64 current_get_dialogs_task_id_ = 0;
-
-  struct PendingOnGetDialogs {
-    FolderId folder_id;
-    vector<tl_object_ptr<telegram_api::Dialog>> dialogs;
-    int32 total_count;
-    vector<tl_object_ptr<telegram_api::Message>> messages;
-    Promise<Unit> promise;
-  };
-
-  vector<PendingOnGetDialogs> pending_on_get_dialogs_;
-  FlatHashMap<DialogId, vector<PendingOnGetDialogs>, DialogIdHash> pending_channel_on_get_dialogs_;
-
-  FlatHashMap<DialogId, vector<Promise<Unit>>, DialogIdHash> run_after_get_channel_difference_;
-
-  ChangesProcessor<unique_ptr<PendingSecretMessage>> pending_secret_messages_;
-
-  FlatHashMap<DialogId, FlatHashMap<int64, MessageId>, DialogIdHash>
-      pending_secret_message_ids_;  // random_id -> message_id
-
-  struct AddDialogData {
-    int32 dependent_dialog_count_ = 0;
-    unique_ptr<Message> last_message_;
-    unique_ptr<DraftMessage> draft_message_;
-
-    AddDialogData() = default;
-    AddDialogData(int32 dependent_dialog_count, unique_ptr<Message> &&last_message,
-                  unique_ptr<DraftMessage> &&draft_message);
-  };
-  FlatHashMap<DialogId, vector<DialogId>, DialogIdHash> pending_add_dialog_dependent_dialogs_;
-  FlatHashMap<DialogId, AddDialogData, DialogIdHash> pending_add_dialog_data_;
-
-  FlatHashMap<DialogId, vector<DialogId>, DialogIdHash>
-      pending_add_default_join_group_call_as_dialog_id_;  // dialog_id -> dependent dialogs
-
-  FlatHashMap<DialogId, vector<std::pair<DialogId, bool>>, DialogIdHash>
-      pending_add_default_send_message_as_dialog_id_;  // dialog_id -> [dependent dialog, need_drop]
-
-  struct MessageIds {
-    FlatHashSet<MessageId, MessageIdHash> message_ids;
-  };
-  FlatHashMap<DialogId, MessageIds, DialogIdHash> dialog_bot_command_message_ids_;
-
-  struct CallsDbState {
-    std::array<MessageId, 2> first_calls_database_message_id_by_index;
-    std::array<int32, 2> message_count_by_index;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  CallsDbState calls_db_state_;
-
-  int64 viewed_live_location_task_id_ = 0;
-  FlatHashMap<int64, MessageFullId> viewed_live_location_tasks_;  // task_id -> task
-  FlatHashMap<DialogId, FlatHashMap<MessageId, int64, MessageIdHash>, DialogIdHash>
-      pending_viewed_live_locations_;  // ... -> task_id
-
-  struct UnsentMediaQueue {
-    DialogId dialog_id_;
-    std::map<MessageId, Promise<Message *>> queue_;
-  };
-  FlatHashMap<uint64, UnsentMediaQueue> yet_unsent_media_queues_;
-
-  WaitFreeHashMap<MessageFullId, FileSourceId, MessageFullIdHash> message_full_id_to_file_source_id_;
-
-  FlatHashMap<DialogId, int32, DialogIdHash> last_outgoing_forwarded_message_date_;
-
-  struct ViewedMessagesInfo {
-    FlatHashMap<MessageId, uint64, MessageIdHash> message_id_to_view_id;
-    std::map<uint64, MessageId> recently_viewed_messages;
-    uint64 current_view_id = 0;
-  };
-  FlatHashMap<DialogId, unique_ptr<ViewedMessagesInfo>, DialogIdHash> dialog_viewed_messages_;
-
-  FlatHashMap<DialogId, std::pair<bool, bool>, DialogIdHash> pending_dialog_group_call_updates_;
-
-  FlatHashMap<string, int32> auth_notification_id_date_;
-
-  FlatHashMap<MessageFullId, unique_ptr<EditedMessage>, MessageFullIdHash> edited_messages_;
-  FlatHashMap<DialogId, FlatHashMap<ScheduledServerMessageId, unique_ptr<EditedMessage>, ScheduledServerMessageIdHash>,
-              DialogIdHash>
-      edited_scheduled_messages_;
-
-  FlatHashMap<DialogId, MessageId, DialogIdHash> previous_repaired_read_inbox_max_message_id_;
-
-  FlatHashMap<MessageFullId, MessageId, MessageFullIdHash> yet_unsent_message_full_id_to_persistent_message_id_;
-  FlatHashMap<MessageFullId, std::set<MessageId>, MessageFullIdHash>
-      yet_unsent_thread_message_ids_;  // {dialog_id, top_thread_message_id} -> yet unsent message IDs
-
-  FlatHashMap<DialogId, unique_ptr<SuffixLoadQueries>, DialogIdHash> dialog_suffix_load_queries_;
-
-  struct PendingMessageView {
-    FlatHashSet<MessageId, MessageIdHash> message_ids_;
-    bool increment_view_counter_ = false;
-  };
-  FlatHashMap<DialogId, PendingMessageView, DialogIdHash> pending_message_views_;
-
-  FlatHashMap<DialogId, std::unordered_map<int64, LogEventIdWithGeneration, Hash<int64>>, DialogIdHash>
-      read_history_log_event_ids_;
-
-  FlatHashMap<DialogId, std::unordered_set<MessageId, MessageIdHash>, DialogIdHash> updated_read_history_message_ids_;
-
-  struct PendingReaction {
-    int32 query_count = 0;
-    bool was_updated = false;
-  };
-  FlatHashMap<MessageFullId, PendingReaction, MessageFullIdHash> pending_reactions_;
-
-  vector<ReactionType> active_reaction_types_;
-  FlatHashMap<ReactionType, size_t, ReactionTypeHash> active_reaction_pos_;
-
-  FlatHashMap<PendingGetHistoryQuery, vector<Promise<Unit>>, PendingGetHistoryQueryHash> get_history_queries_;
-
-  uint32 scheduled_messages_sync_generation_ = 1;
-
-  int64 authorization_date_ = 0;
-
-  DialogId removed_sponsored_dialog_id_;
-  DialogId sponsored_dialog_id_;
-  DialogSource sponsored_dialog_source_;
-
-  MessageFullId being_readded_message_id_;
-
-  DialogId being_added_dialog_id_;
-  DialogId being_added_by_new_message_dialog_id_;
-  DialogId being_added_new_dialog_id_;
-
-  DialogId debug_channel_difference_dialog_;
-  DialogId debug_last_get_channel_difference_dialog_id_;
-  const char *debug_last_get_channel_difference_source_ = "unknown";
-
-  double start_time_ = 0;
-  bool is_inited_ = false;
-  int create_folders_source_ = 0;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MinChannel.h b/third-party/td/td/td/telegram/MinChannel.h
deleted file mode 100644
index 6e1ac43666..0000000000
--- a/third-party/td/td/td/telegram/MinChannel.h
+++ /dev/null
@@ -1,23 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/Photo.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct MinChannel {
-  string title_;
-  DialogPhoto photo_;
-  AccentColorId accent_color_id_;
-  bool is_megagroup_ = false;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MinChannel.hpp b/third-party/td/td/td/telegram/MinChannel.hpp
deleted file mode 100644
index 85ceb55e07..0000000000
--- a/third-party/td/td/td/telegram/MinChannel.hpp
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MinChannel.h"
-#include "td/telegram/Photo.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const MinChannel &min_channel, StorerT &storer) {
-  bool has_title = !min_channel.title_.empty();
-  bool has_photo = min_channel.photo_.small_file_id.is_valid();
-  bool has_accent_color_id = min_channel.accent_color_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_title);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(min_channel.is_megagroup_);
-  STORE_FLAG(has_accent_color_id);
-  END_STORE_FLAGS();
-  if (has_title) {
-    store(min_channel.title_, storer);
-  }
-  if (has_photo) {
-    store(min_channel.photo_, storer);
-  }
-  if (has_accent_color_id) {
-    store(min_channel.accent_color_id_, storer);
-  }
-}
-
-template <class ParserT>
-void parse(MinChannel &min_channel, ParserT &parser) {
-  bool has_title;
-  bool has_photo;
-  bool has_accent_color_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_title);
-  PARSE_FLAG(has_photo);
-  PARSE_FLAG(min_channel.is_megagroup_);
-  PARSE_FLAG(has_accent_color_id);
-  END_PARSE_FLAGS();
-  if (has_title) {
-    parse(min_channel.title_, parser);
-  }
-  if (has_photo) {
-    parse(min_channel.photo_, parser);
-  }
-  if (has_accent_color_id) {
-    parse(min_channel.accent_color_id_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MissingInvitee.cpp b/third-party/td/td/td/telegram/MissingInvitee.cpp
deleted file mode 100644
index 1ffb65c9ab..0000000000
--- a/third-party/td/td/td/telegram/MissingInvitee.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MissingInvitee.h"
-
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-MissingInvitee::MissingInvitee(telegram_api::object_ptr<telegram_api::missingInvitee> &&invitee)
-    : user_id_(invitee->user_id_)
-    , premium_would_allow_invite_(invitee->premium_would_allow_invite_)
-    , premium_required_for_pm_(invitee->premium_required_for_pm_) {
-}
-
-td_api::object_ptr<td_api::failedToAddMember> MissingInvitee::get_failed_to_add_member_object(
-    UserManager *user_manager) const {
-  return td_api::make_object<td_api::failedToAddMember>(
-      user_manager->get_user_id_object(user_id_, "get_failed_to_add_member_object"), premium_would_allow_invite_,
-      premium_required_for_pm_);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MissingInvitee &invitee) {
-  return string_builder << '[' << invitee.user_id_ << ' ' << invitee.premium_would_allow_invite_ << ' '
-                        << invitee.premium_required_for_pm_ << ']';
-}
-
-MissingInvitees::MissingInvitees(vector<telegram_api::object_ptr<telegram_api::missingInvitee>> &&invitees) {
-  for (auto &invitee : invitees) {
-    missing_invitees_.emplace_back(std::move(invitee));
-    if (!missing_invitees_.back().is_valid()) {
-      LOG(ERROR) << "Receive invalid " << missing_invitees_.back() << " as a missing invitee";
-      missing_invitees_.pop_back();
-    }
-  }
-}
-
-td_api::object_ptr<td_api::failedToAddMembers> MissingInvitees::get_failed_to_add_members_object(
-    UserManager *user_manager) const {
-  return td_api::make_object<td_api::failedToAddMembers>(
-      transform(missing_invitees_, [user_manager](const MissingInvitee &message_invitee) {
-        return message_invitee.get_failed_to_add_member_object(user_manager);
-      }));
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MissingInvitees &invitees) {
-  return string_builder << invitees.missing_invitees_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/MissingInvitee.h b/third-party/td/td/td/telegram/MissingInvitee.h
deleted file mode 100644
index 1844023934..0000000000
--- a/third-party/td/td/td/telegram/MissingInvitee.h
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class UserManager;
-
-class MissingInvitee {
-  UserId user_id_;
-  bool premium_would_allow_invite_ = false;
-  bool premium_required_for_pm_ = false;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MissingInvitee &invitee);
-
- public:
-  explicit MissingInvitee(telegram_api::object_ptr<telegram_api::missingInvitee> &&invitee);
-
-  bool is_valid() const {
-    return user_id_.is_valid();
-  }
-
-  td_api::object_ptr<td_api::failedToAddMember> get_failed_to_add_member_object(UserManager *user_manager) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MissingInvitee &invitee);
-
-class MissingInvitees {
-  vector<MissingInvitee> missing_invitees_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const MissingInvitees &invitees);
-
- public:
-  MissingInvitees() = default;
-
-  explicit MissingInvitees(vector<telegram_api::object_ptr<telegram_api::missingInvitee>> &&invitees);
-
-  td_api::object_ptr<td_api::failedToAddMembers> get_failed_to_add_members_object(UserManager *user_manager) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const MissingInvitees &invitees);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NewPasswordState.cpp b/third-party/td/td/td/telegram/NewPasswordState.cpp
deleted file mode 100644
index dacbd43c64..0000000000
--- a/third-party/td/td/td/telegram/NewPasswordState.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/NewPasswordState.h"
-
-namespace td {
-
-Result<NewPasswordState> get_new_password_state(tl_object_ptr<telegram_api::PasswordKdfAlgo> new_algo,
-                                                tl_object_ptr<telegram_api::SecurePasswordKdfAlgo> new_secure_algo) {
-  NewPasswordState state;
-  CHECK(new_algo != nullptr);
-  switch (new_algo->get_id()) {
-    case telegram_api::passwordKdfAlgoUnknown::ID:
-      return Status::Error(400, "Please update client to continue");
-    case telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow::ID: {
-      auto algo =
-          move_tl_object_as<telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow>(new_algo);
-      state.client_salt = algo->salt1_.as_slice().str();
-      state.server_salt = algo->salt2_.as_slice().str();
-      state.srp_g = algo->g_;
-      state.srp_p = algo->p_.as_slice().str();
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  CHECK(new_secure_algo != nullptr);
-  switch (new_secure_algo->get_id()) {
-    case telegram_api::securePasswordKdfAlgoUnknown::ID:
-      return Status::Error(400, "Please update client to continue");
-    case telegram_api::securePasswordKdfAlgoSHA512::ID:
-      return Status::Error(500, "Server has sent outdated secret encryption mode");
-    case telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000::ID: {
-      auto algo = move_tl_object_as<telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000>(new_secure_algo);
-      state.secure_salt = algo->salt_.as_slice().str();
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  static constexpr size_t MIN_NEW_SECURE_SALT_SIZE = 8;
-  if (state.secure_salt.size() < MIN_NEW_SECURE_SALT_SIZE) {
-    return Status::Error(500, "New secure salt length too small");
-  }
-
-  static constexpr size_t MIN_NEW_SALT_SIZE = 8;
-  if (state.client_salt.size() < MIN_NEW_SALT_SIZE) {
-    return Status::Error(500, "New salt length too small");
-  }
-  return state;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NewPasswordState.h b/third-party/td/td/td/telegram/NewPasswordState.h
deleted file mode 100644
index f2724a2571..0000000000
--- a/third-party/td/td/td/telegram/NewPasswordState.h
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-struct NewPasswordState {
-  string client_salt;
-  string server_salt;
-  string srp_p;
-  string secure_salt;
-  int32 srp_g = 0;
-};
-
-Result<NewPasswordState> get_new_password_state(tl_object_ptr<telegram_api::PasswordKdfAlgo> new_algo,
-                                                tl_object_ptr<telegram_api::SecurePasswordKdfAlgo> new_secure_algo);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Notification.h b/third-party/td/td/td/telegram/Notification.h
deleted file mode 100644
index e198f2fdb3..0000000000
--- a/third-party/td/td/td/telegram/Notification.h
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/NotificationType.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Notification {
- public:
-  NotificationId notification_id;
-  int32 date = 0;
-  bool disable_notification = false;
-  unique_ptr<NotificationType> type;
-
-  Notification(NotificationId notification_id, int32 date, bool disable_notification, unique_ptr<NotificationType> type)
-      : notification_id(notification_id)
-      , date(date)
-      , disable_notification(disable_notification)
-      , type(std::move(type)) {
-  }
-};
-
-inline td_api::object_ptr<td_api::notification> get_notification_object(Td *td, DialogId dialog_id,
-                                                                        const Notification &notification) {
-  CHECK(notification.type != nullptr);
-  return td_api::make_object<td_api::notification>(notification.notification_id.get(), notification.date,
-                                                   notification.disable_notification,
-                                                   notification.type->get_notification_type_object(td, dialog_id));
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const Notification &notification) {
-  return sb << "notification[" << notification.notification_id << ", " << notification.date << ", "
-            << notification.disable_notification << ", " << *notification.type << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationGroupFromDatabase.h b/third-party/td/td/td/telegram/NotificationGroupFromDatabase.h
deleted file mode 100644
index b5527ec4a1..0000000000
--- a/third-party/td/td/td/telegram/NotificationGroupFromDatabase.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Notification.h"
-#include "td/telegram/NotificationGroupType.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct NotificationGroupFromDatabase {
-  DialogId dialog_id;
-  NotificationGroupType type = NotificationGroupType::Calls;
-  int32 total_count = 0;
-  vector<Notification> notifications;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationGroupId.h b/third-party/td/td/td/telegram/NotificationGroupId.h
deleted file mode 100644
index 6ce23653d5..0000000000
--- a/third-party/td/td/td/telegram/NotificationGroupId.h
+++ /dev/null
@@ -1,67 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class NotificationGroupId {
- public:
-  NotificationGroupId() = default;
-
-  explicit constexpr NotificationGroupId(int32 group_id) : id(group_id) {
-  }
-
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  NotificationGroupId(T group_id) = delete;
-
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const NotificationGroupId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const NotificationGroupId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_int();
-  }
-
- private:
-  int32 id{0};
-};
-
-struct NotificationGroupIdHash {
-  uint32 operator()(NotificationGroupId group_id) const {
-    return Hash<int32>()(group_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const NotificationGroupId group_id) {
-  return sb << "notification group " << group_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationGroupInfo.cpp b/third-party/td/td/td/telegram/NotificationGroupInfo.cpp
deleted file mode 100644
index ef884539e1..0000000000
--- a/third-party/td/td/td/telegram/NotificationGroupInfo.cpp
+++ /dev/null
@@ -1,133 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/NotificationGroupInfo.h"
-
-#include "td/telegram/NotificationManager.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-bool NotificationGroupInfo::set_last_notification(int32 last_notification_date, NotificationId last_notification_id,
-                                                  const char *source) {
-  if (is_removed_notification_id(last_notification_id)) {
-    last_notification_id = NotificationId();
-    last_notification_date = 0;
-  }
-  if (last_notification_date_ != last_notification_date || last_notification_id_ != last_notification_id) {
-    VLOG(notifications) << "Set " << group_id_ << " last notification to " << last_notification_id << " sent at "
-                        << last_notification_date << " from " << source;
-    if (last_notification_date_ != last_notification_date) {
-      last_notification_date_ = last_notification_date;
-      is_key_changed_ = true;
-    }
-    last_notification_id_ = last_notification_id;
-    return true;
-  }
-  return false;
-}
-
-bool NotificationGroupInfo::set_max_removed_notification_id(NotificationId max_removed_notification_id,
-                                                            NotificationObjectId max_removed_object_id,
-                                                            const char *source) {
-  if (max_removed_notification_id.get() <= max_removed_notification_id_.get()) {
-    return false;
-  }
-  if (max_removed_object_id > max_removed_object_id_) {
-    VLOG(notifications) << "Set max_removed_object_id in " << group_id_ << " to " << max_removed_object_id << " from "
-                        << source;
-    max_removed_object_id_ = max_removed_object_id;
-  }
-
-  VLOG(notifications) << "Set max_removed_notification_id in " << group_id_ << " to " << max_removed_notification_id
-                      << " from " << source;
-  max_removed_notification_id_ = max_removed_notification_id;
-
-  if (last_notification_id_.is_valid() && is_removed_notification_id(last_notification_id_)) {
-    last_notification_id_ = NotificationId();
-    last_notification_date_ = 0;
-    is_key_changed_ = true;
-  }
-
-  return true;
-}
-
-void NotificationGroupInfo::drop_max_removed_notification_id() {
-  if (!max_removed_notification_id_.is_valid()) {
-    return;
-  }
-
-  VLOG(notifications) << "Drop max_removed_notification_id in " << group_id_;
-  max_removed_object_id_ = {};
-  max_removed_notification_id_ = NotificationId();
-}
-
-bool NotificationGroupInfo::is_removed_notification(NotificationId notification_id,
-                                                    NotificationObjectId object_id) const {
-  return is_removed_notification_id(notification_id) || is_removed_object_id(object_id);
-}
-
-bool NotificationGroupInfo::is_removed_notification_id(NotificationId notification_id) const {
-  return notification_id.get() <= max_removed_notification_id_.get();
-}
-
-bool NotificationGroupInfo::is_removed_object_id(NotificationObjectId object_id) const {
-  return object_id <= max_removed_object_id_;
-}
-
-bool NotificationGroupInfo::is_used_notification_id(NotificationId notification_id) const {
-  return notification_id.get() <= max_removed_notification_id_.get() ||
-         notification_id.get() <= last_notification_id_.get();
-}
-
-void NotificationGroupInfo::try_reuse() {
-  CHECK(is_valid());
-  CHECK(last_notification_date_ == 0);
-  if (!try_reuse_) {
-    try_reuse_ = true;
-    is_key_changed_ = true;
-  }
-}
-
-void NotificationGroupInfo::add_group_key_if_changed(vector<NotificationGroupKey> &group_keys, DialogId dialog_id) {
-  if (!is_key_changed_) {
-    return;
-  }
-  is_key_changed_ = false;
-
-  group_keys.emplace_back(group_id_, try_reuse_ ? DialogId() : dialog_id, last_notification_date_);
-}
-
-NotificationGroupId NotificationGroupInfo::get_reused_group_id() {
-  if (!try_reuse_) {
-    return {};
-  }
-  if (is_key_changed_) {
-    LOG(ERROR) << "Failed to reuse changed " << group_id_;
-    return {};
-  }
-  try_reuse_ = false;
-  if (!is_valid()) {
-    LOG(ERROR) << "Failed to reuse invalid " << group_id_;
-    return {};
-  }
-  CHECK(last_notification_id_ == NotificationId());
-  CHECK(last_notification_date_ == 0);
-  auto result = group_id_;
-  group_id_ = NotificationGroupId();
-  max_removed_notification_id_ = NotificationId();
-  max_removed_object_id_ = {};
-  return result;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NotificationGroupInfo &group_info) {
-  return string_builder << group_info.group_id_ << " with last " << group_info.last_notification_id_ << " sent at "
-                        << group_info.last_notification_date_ << ", max removed "
-                        << group_info.max_removed_notification_id_ << '/' << group_info.max_removed_object_id_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationGroupInfo.h b/third-party/td/td/td/telegram/NotificationGroupInfo.h
deleted file mode 100644
index a56b7621f1..0000000000
--- a/third-party/td/td/td/telegram/NotificationGroupInfo.h
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/NotificationGroupId.h"
-#include "td/telegram/NotificationGroupKey.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/NotificationObjectId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class NotificationGroupInfo {
-  NotificationGroupId group_id_;
-  int32 last_notification_date_ = 0;            // date of the last notification in the group
-  NotificationId last_notification_id_;         // identifier of the last notification in the group
-  NotificationId max_removed_notification_id_;  // notification identifier, up to which all notifications are removed
-  NotificationObjectId max_removed_object_id_;  // object identifier, up to which all notifications are removed
-  bool is_key_changed_ = false;                 // true, if the group needs to be saved to database
-  bool try_reuse_ = false;  // true, if the group needs to be deleted from database and tried to be reused
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const NotificationGroupInfo &group_info);
-
- public:
-  NotificationGroupInfo() = default;
-
-  explicit NotificationGroupInfo(NotificationGroupId group_id) : group_id_(group_id), is_key_changed_(true) {
-  }
-
-  bool is_valid() const {
-    return group_id_.is_valid();
-  }
-
-  bool is_active() const {
-    return is_valid() && !try_reuse_;
-  }
-
-  NotificationGroupId get_group_id() const {
-    return group_id_;
-  }
-
-  bool has_group_id(NotificationGroupId group_id) const {
-    return group_id_ == group_id;
-  }
-
-  NotificationId get_last_notification_id() const {
-    return last_notification_id_;
-  }
-
-  bool set_last_notification(int32 last_notification_date, NotificationId last_notification_id, const char *source);
-
-  bool set_max_removed_notification_id(NotificationId max_removed_notification_id,
-                                       NotificationObjectId max_removed_object_id, const char *source);
-
-  void drop_max_removed_notification_id();
-
-  bool is_removed_notification(NotificationId notification_id, NotificationObjectId object_id) const;
-
-  bool is_removed_notification_id(NotificationId notification_id) const;
-
-  bool is_removed_object_id(NotificationObjectId object_id) const;
-
-  bool is_used_notification_id(NotificationId notification_id) const;
-
-  void try_reuse();
-
-  void add_group_key_if_changed(vector<NotificationGroupKey> &group_keys, DialogId dialog_id);
-
-  NotificationGroupId get_reused_group_id();
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NotificationGroupInfo &group_info);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationGroupInfo.hpp b/third-party/td/td/td/telegram/NotificationGroupInfo.hpp
deleted file mode 100644
index 03c867e45f..0000000000
--- a/third-party/td/td/td/telegram/NotificationGroupInfo.hpp
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/NotificationGroupInfo.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void NotificationGroupInfo::store(StorerT &storer) const {
-  using td::store;
-  store(group_id_, storer);
-  store(last_notification_date_, storer);
-  store(last_notification_id_, storer);
-  store(max_removed_notification_id_, storer);
-  store(max_removed_object_id_, storer);
-}
-
-template <class ParserT>
-void NotificationGroupInfo::parse(ParserT &parser) {
-  using td::parse;
-  parse(group_id_, parser);
-  parse(last_notification_date_, parser);
-  parse(last_notification_id_, parser);
-  parse(max_removed_notification_id_, parser);
-  if (parser.version() >= static_cast<int32>(Version::AddNotificationGroupInfoMaxRemovedMessageId)) {
-    parse(max_removed_object_id_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationGroupKey.h b/third-party/td/td/td/telegram/NotificationGroupKey.h
deleted file mode 100644
index 7b4c6ee0cc..0000000000
--- a/third-party/td/td/td/telegram/NotificationGroupKey.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/NotificationGroupId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct NotificationGroupKey {
-  NotificationGroupId group_id;
-  DialogId dialog_id;
-  int32 last_notification_date = 0;
-
-  NotificationGroupKey() = default;
-  NotificationGroupKey(NotificationGroupId group_id, DialogId dialog_id, int32 last_notification_date)
-      : group_id(group_id), dialog_id(dialog_id), last_notification_date(last_notification_date) {
-  }
-
-  bool operator<(const NotificationGroupKey &other) const {
-    if (last_notification_date != other.last_notification_date) {
-      return last_notification_date > other.last_notification_date;
-    }
-    if (dialog_id != other.dialog_id) {
-      return dialog_id.get() > other.dialog_id.get();
-    }
-    return group_id.get() > other.group_id.get();
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const NotificationGroupKey &group_key) {
-  return string_builder << '[' << group_key.group_id << ',' << group_key.dialog_id << ','
-                        << group_key.last_notification_date << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationGroupType.cpp b/third-party/td/td/td/telegram/NotificationGroupType.cpp
deleted file mode 100644
index 4bccc73254..0000000000
--- a/third-party/td/td/td/telegram/NotificationGroupType.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/NotificationGroupType.h"
-
-namespace td {
-
-bool is_database_notification_group_type(NotificationGroupType type) {
-  switch (type) {
-    case NotificationGroupType::Messages:
-    case NotificationGroupType::Mentions:
-    case NotificationGroupType::SecretChat:
-      return true;
-    case NotificationGroupType::Calls:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool is_partial_notification_group_type(NotificationGroupType type) {
-  switch (type) {
-    case NotificationGroupType::Messages:
-    case NotificationGroupType::Mentions:
-      return true;
-    case NotificationGroupType::SecretChat:
-    case NotificationGroupType::Calls:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-td_api::object_ptr<td_api::NotificationGroupType> get_notification_group_type_object(NotificationGroupType type) {
-  switch (type) {
-    case NotificationGroupType::Messages:
-      return td_api::make_object<td_api::notificationGroupTypeMessages>();
-    case NotificationGroupType::Mentions:
-      return td_api::make_object<td_api::notificationGroupTypeMentions>();
-    case NotificationGroupType::SecretChat:
-      return td_api::make_object<td_api::notificationGroupTypeSecretChat>();
-    case NotificationGroupType::Calls:
-      return td_api::make_object<td_api::notificationGroupTypeCalls>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-NotificationGroupType get_notification_group_type(const td_api::object_ptr<td_api::NotificationGroupType> &type) {
-  CHECK(type != nullptr);
-  switch (type->get_id()) {
-    case td_api::notificationGroupTypeMessages::ID:
-      return NotificationGroupType::Messages;
-    case td_api::notificationGroupTypeMentions::ID:
-      return NotificationGroupType::Mentions;
-    case td_api::notificationGroupTypeSecretChat::ID:
-      return NotificationGroupType::SecretChat;
-    case td_api::notificationGroupTypeCalls::ID:
-      return NotificationGroupType::Calls;
-    default:
-      UNREACHABLE();
-      return NotificationGroupType::Calls;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NotificationGroupType &type) {
-  switch (type) {
-    case NotificationGroupType::Messages:
-      return string_builder << "Messages";
-    case NotificationGroupType::Mentions:
-      return string_builder << "Mentions";
-    case NotificationGroupType::SecretChat:
-      return string_builder << "SecretChat";
-    case NotificationGroupType::Calls:
-      return string_builder << "Calls";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationGroupType.h b/third-party/td/td/td/telegram/NotificationGroupType.h
deleted file mode 100644
index 55f7d1adaf..0000000000
--- a/third-party/td/td/td/telegram/NotificationGroupType.h
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class NotificationGroupType : int8 { Messages, Mentions, SecretChat, Calls };
-
-bool is_database_notification_group_type(NotificationGroupType type);
-
-bool is_partial_notification_group_type(NotificationGroupType type);
-
-td_api::object_ptr<td_api::NotificationGroupType> get_notification_group_type_object(NotificationGroupType type);
-
-NotificationGroupType get_notification_group_type(const td_api::object_ptr<td_api::NotificationGroupType> &type);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NotificationGroupType &type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationId.h b/third-party/td/td/td/telegram/NotificationId.h
deleted file mode 100644
index 2aa7bbd09d..0000000000
--- a/third-party/td/td/td/telegram/NotificationId.h
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <limits>
-#include <type_traits>
-
-namespace td {
-
-class NotificationId {
- public:
-  NotificationId() = default;
-
-  explicit constexpr NotificationId(int32 notification_id) : id(notification_id) {
-  }
-
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  NotificationId(T notification_id) = delete;
-
-  static constexpr NotificationId max() {
-    return NotificationId(std::numeric_limits<int32>::max());
-  }
-
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const NotificationId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const NotificationId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_int();
-  }
-
- private:
-  int32 id{0};
-};
-
-struct NotificationIdHash {
-  uint32 operator()(NotificationId notification_id) const {
-    return Hash<int32>()(notification_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const NotificationId notification_id) {
-  return sb << "notification " << notification_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationManager.cpp b/third-party/td/td/td/telegram/NotificationManager.cpp
deleted file mode 100644
index 641ed74b93..0000000000
--- a/third-party/td/td/td/telegram/NotificationManager.cpp
+++ /dev/null
@@ -1,4239 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/NotificationManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/DeviceTokenManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/Document.hpp"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageQueryManager.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/ConnectionCreator.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/PacketInfo.h"
-#include "td/mtproto/Transport.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/Gzip.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <iterator>
-#include <limits>
-
-namespace td {
-
-int VERBOSITY_NAME(notifications) = VERBOSITY_NAME(INFO);
-
-class SetContactSignUpNotificationQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetContactSignUpNotificationQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool is_disabled) {
-    send_query(G()->net_query_creator().create(telegram_api::account_setContactSignUpNotification(is_disabled)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_setContactSignUpNotification>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for set contact sign up notification: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetContactSignUpNotificationQuery final : public Td::ResultHandler {
-  Promise<bool> promise_;
-
- public:
-  explicit GetContactSignUpNotificationQuery(Promise<bool> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getContactSignUpNotification()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getContactSignUpNotification>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for get contact sign up notification: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-NotificationManager::NotificationManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  flush_pending_notifications_timeout_.set_callback(on_flush_pending_notifications_timeout_callback);
-  flush_pending_notifications_timeout_.set_callback_data(static_cast<void *>(this));
-
-  flush_pending_updates_timeout_.set_callback(on_flush_pending_updates_timeout_callback);
-  flush_pending_updates_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-void NotificationManager::on_flush_pending_notifications_timeout_callback(void *notification_manager_ptr,
-                                                                          int64 group_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto notification_manager = static_cast<NotificationManager *>(notification_manager_ptr);
-  VLOG(notifications) << "Ready to flush pending notifications for notification group " << group_id_int;
-  if (group_id_int > 0) {
-    send_closure_later(notification_manager->actor_id(notification_manager),
-                       &NotificationManager::flush_pending_notifications,
-                       NotificationGroupId(narrow_cast<int32>(group_id_int)));
-  } else if (group_id_int == 0) {
-    send_closure_later(notification_manager->actor_id(notification_manager),
-                       &NotificationManager::after_get_difference_impl);
-  } else {
-    send_closure_later(notification_manager->actor_id(notification_manager),
-                       &NotificationManager::after_get_chat_difference_impl,
-                       NotificationGroupId(narrow_cast<int32>(-group_id_int)));
-  }
-}
-
-void NotificationManager::on_flush_pending_updates_timeout_callback(void *notification_manager_ptr,
-                                                                    int64 group_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto notification_manager = static_cast<NotificationManager *>(notification_manager_ptr);
-  send_closure_later(notification_manager->actor_id(notification_manager), &NotificationManager::flush_pending_updates,
-                     narrow_cast<int32>(group_id_int), "timeout");
-}
-
-bool NotificationManager::is_disabled() const {
-  return G()->close_flag() || !td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot();
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NotificationManager::ActiveNotificationsUpdate &update) {
-  if (update.update == nullptr) {
-    return string_builder << "null";
-  }
-  string_builder << "update[\n";
-  for (auto &group : update.update->groups_) {
-    vector<int32> added_notification_ids;
-    for (auto &notification : group->notifications_) {
-      added_notification_ids.push_back(notification->id_);
-    }
-
-    string_builder << "    [" << NotificationGroupId(group->id_) << " of type "
-                   << get_notification_group_type(group->type_) << " from " << DialogId(group->chat_id_)
-                   << "; total_count = " << group->total_count_ << ", restore " << added_notification_ids << "]\n";
-  }
-  return string_builder << ']';
-}
-
-NotificationManager::ActiveNotificationsUpdate NotificationManager::as_active_notifications_update(
-    const td_api::updateActiveNotifications *update) {
-  return ActiveNotificationsUpdate{update};
-}
-
-string NotificationManager::get_is_contact_registered_notifications_synchronized_key() {
-  return "notifications_contact_registered_sync_state";
-}
-
-void NotificationManager::start_up() {
-  init();
-}
-
-void NotificationManager::init() {
-  if (is_disabled() || is_inited_) {
-    return;
-  }
-
-  disable_contact_registered_notifications_ =
-      td_->option_manager_->get_option_boolean("disable_contact_registered_notifications");
-  auto sync_state = G()->td_db()->get_binlog_pmc()->get(get_is_contact_registered_notifications_synchronized_key());
-  if (sync_state.empty()) {
-    sync_state = "00";
-  }
-  contact_registered_notifications_sync_state_ = static_cast<SyncState>(sync_state[0] - '0');
-  VLOG(notifications) << "Loaded disable_contact_registered_notifications = "
-                      << disable_contact_registered_notifications_ << " in state " << sync_state;
-  if (contact_registered_notifications_sync_state_ != SyncState::Completed ||
-      sync_state[1] != static_cast<int32>(disable_contact_registered_notifications_) + '0') {
-    run_contact_registered_notifications_sync();
-  }
-
-  current_notification_id_ =
-      NotificationId(to_integer<int32>(G()->td_db()->get_binlog_pmc()->get("notification_id_current")));
-  current_notification_group_id_ =
-      NotificationGroupId(to_integer<int32>(G()->td_db()->get_binlog_pmc()->get("notification_group_id_current")));
-
-  VLOG(notifications) << "Loaded current " << current_notification_id_ << " and " << current_notification_group_id_;
-
-  on_notification_group_count_max_changed(false);
-  on_notification_group_size_max_changed();
-
-  on_online_cloud_timeout_changed();
-  on_notification_cloud_delay_changed();
-  on_notification_default_delay_changed();
-
-  last_loaded_notification_group_key_.last_notification_date = std::numeric_limits<int32>::max();
-  if (max_notification_group_count_ != 0) {
-    int32 loaded_groups = 0;
-    auto needed_groups = static_cast<int32>(max_notification_group_count_);
-    do {
-      loaded_groups += load_message_notification_groups_from_database(needed_groups, false);
-    } while (loaded_groups < needed_groups && last_loaded_notification_group_key_.last_notification_date != 0);
-  }
-
-  auto call_notification_group_ids_string = G()->td_db()->get_binlog_pmc()->get("notification_call_group_ids");
-  if (!call_notification_group_ids_string.empty()) {
-    auto call_notification_group_ids = transform(full_split(call_notification_group_ids_string, ','), [](Slice str) {
-      return NotificationGroupId{to_integer_safe<int32>(str).ok()};
-    });
-    VLOG(notifications) << "Load call_notification_group_ids = " << call_notification_group_ids;
-    for (auto &group_id : call_notification_group_ids) {
-      if (!group_id.is_valid()) {
-        continue;
-      }
-      if (group_id.get() > current_notification_group_id_.get()) {
-        LOG(ERROR) << "Fix current notification group identifier from " << current_notification_group_id_ << " to "
-                   << group_id;
-        current_notification_group_id_ = group_id;
-        G()->td_db()->get_binlog_pmc()->set("notification_group_id_current",
-                                            to_string(current_notification_group_id_.get()));
-      }
-      auto it = get_group_force(group_id);
-      if (it != groups_.end()) {
-        LOG(ERROR) << "Have " << it->first << " " << it->second << " as a call notification group";
-      } else {
-        call_notification_group_ids_.push_back(group_id);
-        available_call_notification_group_ids_.insert(group_id);
-      }
-    }
-  }
-
-  auto notification_announcement_ids_string = G()->td_db()->get_binlog_pmc()->get("notification_announcement_ids");
-  if (!notification_announcement_ids_string.empty()) {
-    VLOG(notifications) << "Load announcement identifiers = " << notification_announcement_ids_string;
-    auto stored_ids = transform(full_split(notification_announcement_ids_string, ','),
-                                [](Slice str) { return to_integer_safe<int32>(str).ok(); });
-    CHECK(stored_ids.size() % 2 == 0);
-    bool is_changed = false;
-    auto min_date = G()->unix_time() - ANNOUNCEMENT_ID_CACHE_TIME;
-    for (size_t i = 0; i < stored_ids.size(); i += 2) {
-      auto announcement_id = stored_ids[i];
-      auto date = stored_ids[i + 1];
-      if (date < min_date || announcement_id == 0) {
-        is_changed = true;
-        continue;
-      }
-      announcement_id_date_.emplace(announcement_id, date);
-    }
-    if (is_changed) {
-      save_announcement_ids();
-    }
-  }
-
-  class StateCallback final : public StateManager::Callback {
-   public:
-    explicit StateCallback(ActorId<NotificationManager> parent) : parent_(std::move(parent)) {
-    }
-    bool on_online(bool is_online) final {
-      if (is_online) {
-        send_closure(parent_, &NotificationManager::flush_all_pending_notifications);
-      }
-      return parent_.is_alive();
-    }
-
-   private:
-    ActorId<NotificationManager> parent_;
-  };
-  send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-
-  is_inited_ = true;
-  try_send_update_active_notifications();
-}
-
-void NotificationManager::save_announcement_ids() {
-  auto min_date = G()->unix_time() - ANNOUNCEMENT_ID_CACHE_TIME;
-  vector<int32> stored_ids;
-  for (auto &it : announcement_id_date_) {
-    auto announcement_id = it.first;
-    auto date = it.second;
-    if (date < min_date) {
-      continue;
-    }
-    stored_ids.push_back(announcement_id);
-    stored_ids.push_back(date);
-  }
-
-  VLOG(notifications) << "Save announcement identifiers " << stored_ids;
-  if (stored_ids.empty()) {
-    G()->td_db()->get_binlog_pmc()->erase("notification_announcement_ids");
-    return;
-  }
-
-  auto notification_announcement_ids_string = implode(transform(stored_ids, to_string<int32>));
-  G()->td_db()->get_binlog_pmc()->set("notification_announcement_ids", notification_announcement_ids_string);
-}
-
-td_api::object_ptr<td_api::updateActiveNotifications> NotificationManager::get_update_active_notifications() const {
-  auto needed_groups = max_notification_group_count_;
-  vector<td_api::object_ptr<td_api::notificationGroup>> groups;
-  for (auto &group : groups_) {
-    if (needed_groups == 0 || group.first.last_notification_date == 0) {
-      break;
-    }
-    needed_groups--;
-
-    vector<td_api::object_ptr<td_api::notification>> notifications;
-    for (auto &notification : reversed(group.second.notifications)) {
-      auto notification_object = get_notification_object(td_, group.first.dialog_id, notification);
-      if (notification_object->type_ != nullptr) {
-        notifications.push_back(std::move(notification_object));
-      }
-      if (notifications.size() == max_notification_group_size_) {
-        break;
-      }
-    }
-    if (!notifications.empty()) {
-      std::reverse(notifications.begin(), notifications.end());
-      groups.push_back(td_api::make_object<td_api::notificationGroup>(
-          group.first.group_id.get(), get_notification_group_type_object(group.second.type),
-          td_->dialog_manager_->get_chat_id_object(group.first.dialog_id, "updateActiveNotifications"),
-          group.second.total_count, std::move(notifications)));
-    }
-  }
-
-  return td_api::make_object<td_api::updateActiveNotifications>(std::move(groups));
-}
-
-void NotificationManager::tear_down() {
-  parent_.reset();
-}
-
-NotificationManager::NotificationGroups::iterator NotificationManager::add_group(NotificationGroupKey &&group_key,
-                                                                                 NotificationGroup &&group,
-                                                                                 const char *source) {
-  if (group.notifications.empty()) {
-    LOG_CHECK(group_key.last_notification_date == 0) << "Trying to add empty " << group_key << " from " << source;
-  }
-  bool is_inserted = group_keys_.emplace(group_key.group_id, group_key).second;
-  CHECK(is_inserted);
-  return groups_.emplace(std::move(group_key), std::move(group)).first;
-}
-
-NotificationManager::NotificationGroups::iterator NotificationManager::get_group(NotificationGroupId group_id) {
-  auto group_keys_it = group_keys_.find(group_id);
-  if (group_keys_it != group_keys_.end()) {
-    return groups_.find(group_keys_it->second);
-  }
-  return groups_.end();
-}
-
-void NotificationManager::load_group_force(NotificationGroupId group_id) {
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return;
-  }
-
-  auto group_it = get_group_force(group_id);
-  CHECK(group_it != groups_.end());
-}
-
-bool NotificationManager::have_group_force(NotificationGroupId group_id) {
-  if (is_disabled()) {
-    return false;
-  }
-
-  return td::contains(call_notification_group_ids_, group_id) || get_group_force(group_id) != groups_.end();
-}
-
-NotificationManager::NotificationGroups::iterator NotificationManager::get_group_force(NotificationGroupId group_id,
-                                                                                       bool send_update) {
-  auto group_it = get_group(group_id);
-  if (group_it != groups_.end()) {
-    return group_it;
-  }
-
-  if (td::contains(call_notification_group_ids_, group_id)) {
-    return groups_.end();
-  }
-
-  auto message_group = td_->messages_manager_->get_message_notification_group_force(group_id);
-  if (!message_group.dialog_id.is_valid()) {
-    return groups_.end();
-  }
-
-  NotificationGroupKey group_key(group_id, message_group.dialog_id, 0);
-  for (auto &notification : message_group.notifications) {
-    if (notification.date > group_key.last_notification_date) {
-      group_key.last_notification_date = notification.date;
-    }
-    if (notification.notification_id.get() > current_notification_id_.get()) {
-      LOG(ERROR) << "Fix current notification identifier from " << current_notification_id_ << " to "
-                 << notification.notification_id;
-      current_notification_id_ = notification.notification_id;
-      G()->td_db()->get_binlog_pmc()->set("notification_id_current", to_string(current_notification_id_.get()));
-    }
-  }
-  if (group_id.get() > current_notification_group_id_.get()) {
-    LOG(ERROR) << "Fix current notification group identifier from " << current_notification_group_id_ << " to "
-               << group_id;
-    current_notification_group_id_ = group_id;
-    G()->td_db()->get_binlog_pmc()->set("notification_group_id_current",
-                                        to_string(current_notification_group_id_.get()));
-  }
-
-  NotificationGroup group;
-  group.type = message_group.type;
-  group.total_count = message_group.total_count;
-  group.notifications = std::move(message_group.notifications);
-
-  VLOG(notifications) << "Finish to load " << group_id << " of type " << message_group.type << " with total_count "
-                      << message_group.total_count << " and notifications " << group.notifications;
-
-  if (send_update && group_key.last_notification_date != 0) {
-    auto last_group_key = get_last_updated_group_key();
-    if (group_key < last_group_key) {
-      if (last_group_key.last_notification_date != 0) {
-        send_remove_group_update(last_group_key, groups_[last_group_key], vector<int32>());
-      }
-      send_add_group_update(group_key, group, "get_group_force");
-    }
-  }
-  return add_group(std::move(group_key), std::move(group), "get_group_force");
-}
-
-void NotificationManager::delete_group(NotificationGroups::iterator &&group_it) {
-  auto erased_count = group_keys_.erase(group_it->first.group_id);
-  CHECK(erased_count > 0);
-  groups_.erase(group_it);
-}
-
-int32 NotificationManager::load_message_notification_groups_from_database(int32 limit, bool send_update) {
-  CHECK(limit > 0);
-  if (last_loaded_notification_group_key_.last_notification_date == 0) {
-    // everything was already loaded
-    return 0;
-  }
-
-  VLOG(notifications) << "Trying to load up to " << limit << " notification groups from database";
-  vector<NotificationGroupKey> group_keys = td_->messages_manager_->get_message_notification_group_keys_from_database(
-      last_loaded_notification_group_key_, limit);
-  last_loaded_notification_group_key_ =
-      group_keys.size() == static_cast<size_t>(limit) ? group_keys.back() : NotificationGroupKey();
-
-  int32 result = 0;
-  for (auto &group_key : group_keys) {
-    auto group_it = get_group_force(group_key.group_id, send_update);
-    LOG_CHECK(group_it != groups_.end()) << call_notification_group_ids_ << " " << group_keys << " "
-                                         << current_notification_group_id_ << " " << limit;
-    CHECK(group_it->first.dialog_id.is_valid());
-    if (!(last_loaded_notification_group_key_ < group_it->first)) {
-      result++;
-    }
-  }
-  return result;
-}
-
-NotificationId NotificationManager::get_first_notification_id(const NotificationGroup &group) {
-  if (!group.notifications.empty()) {
-    return group.notifications[0].notification_id;
-  }
-  if (!group.pending_notifications.empty()) {
-    return group.pending_notifications[0].notification_id;
-  }
-  return NotificationId();
-}
-
-NotificationId NotificationManager::get_last_notification_id(const NotificationGroup &group) {
-  if (!group.pending_notifications.empty()) {
-    return group.pending_notifications.back().notification_id;
-  }
-  if (!group.notifications.empty()) {
-    return group.notifications.back().notification_id;
-  }
-  return NotificationId();
-}
-
-NotificationObjectId NotificationManager::get_first_object_id(const NotificationGroup &group) {
-  // it's fine to return NotificationObjectId() if first notification has no object_id, because
-  // object_id is from the same scope within a notification group
-  if (!group.notifications.empty()) {
-    return group.notifications[0].type->get_object_id();
-  }
-  if (!group.pending_notifications.empty()) {
-    return group.pending_notifications[0].type->get_object_id();
-  }
-  return NotificationObjectId();
-}
-
-NotificationObjectId NotificationManager::get_last_object_id(const NotificationGroup &group) {
-  // it's fine to return NotificationObjectId() if last notification has no object_id, because
-  // object_id is from the same scope within a notification group
-  if (!group.pending_notifications.empty()) {
-    return group.pending_notifications.back().type->get_object_id();
-  }
-  if (!group.notifications.empty()) {
-    return group.notifications.back().type->get_object_id();
-  }
-  return NotificationObjectId();
-}
-
-NotificationObjectId NotificationManager::get_last_object_id_by_notification_id(const NotificationGroup &group,
-                                                                                NotificationId max_notification_id) {
-  for (auto &notification : reversed(group.pending_notifications)) {
-    if (notification.notification_id.get() <= max_notification_id.get()) {
-      auto object_id = notification.type->get_object_id();
-      if (object_id.is_valid()) {
-        return object_id;
-      }
-    }
-  }
-  for (auto &notification : reversed(group.notifications)) {
-    if (notification.notification_id.get() <= max_notification_id.get()) {
-      auto object_id = notification.type->get_object_id();
-      if (object_id.is_valid()) {
-        return object_id;
-      }
-    }
-  }
-  return NotificationObjectId();
-}
-
-void NotificationManager::load_notifications_from_database(const NotificationGroupKey &group_key,
-                                                           NotificationGroup &group, size_t desired_size) {
-  if (!G()->use_message_database() || group.is_loaded_from_database || group.is_being_loaded_from_database ||
-      group.total_count == 0 || !is_database_notification_group_type(group.type)) {
-    return;
-  }
-
-  VLOG(notifications) << "Trying to load up to " << desired_size << " notifications in " << group_key.group_id
-                      << " with " << group.notifications.size() << " current notifications";
-
-  group.is_being_loaded_from_database = true;
-
-  CHECK(desired_size > group.notifications.size());
-  size_t limit = desired_size - group.notifications.size();
-  auto first_notification_id = get_first_notification_id(group);
-  auto from_notification_id = first_notification_id.is_valid() ? first_notification_id : NotificationId::max();
-  auto first_object_id = get_first_object_id(group);
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), group_id = group_key.group_id, limit](Result<vector<Notification>> r_notifications) {
-        send_closure_later(actor_id, &NotificationManager::on_get_notifications_from_database, group_id, limit,
-                           std::move(r_notifications));
-      });
-
-  switch (group.type) {
-    case NotificationGroupType::SecretChat:
-    case NotificationGroupType::Messages:
-    case NotificationGroupType::Mentions: {
-      auto from_message_id = first_object_id.is_valid() ? MessageId(first_object_id.get()) : MessageId::max();
-      send_closure(G()->messages_manager(), &MessagesManager::get_message_notifications_from_database,
-                   group_key.dialog_id, group_key.group_id, from_notification_id, from_message_id,
-                   static_cast<int32>(limit), std::move(promise));
-      break;
-    }
-    case NotificationGroupType::Calls:
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-void NotificationManager::on_get_notifications_from_database(NotificationGroupId group_id, size_t limit,
-                                                             Result<vector<Notification>> r_notifications) {
-  auto group_it = get_group(group_id);
-  CHECK(group_it != groups_.end());
-  auto &group = group_it->second;
-  CHECK(group.is_being_loaded_from_database);
-  group.is_being_loaded_from_database = false;
-
-  if (r_notifications.is_error()) {
-    group.is_loaded_from_database = true;  // do not try again to load it
-    return;
-  }
-  auto notifications = r_notifications.move_as_ok();
-
-  CHECK(limit > 0);
-  if (notifications.empty()) {
-    group.is_loaded_from_database = true;
-  }
-
-  auto first_notification_id = get_first_notification_id(group);
-  if (first_notification_id.is_valid()) {
-    while (!notifications.empty() && notifications.back().notification_id.get() >= first_notification_id.get()) {
-      // possible if notifications were added after the database request was sent
-      notifications.pop_back();
-    }
-  }
-  auto first_object_id = get_first_object_id(group);
-  if (first_object_id.is_valid()) {
-    while (!notifications.empty() && notifications.back().type->get_object_id() >= first_object_id) {
-      // possible if notifications were added after the database request was sent
-      notifications.pop_back();
-    }
-  }
-
-  add_notifications_to_group_begin(std::move(group_it), std::move(notifications));
-
-  group_it = get_group(group_id);
-  CHECK(group_it != groups_.end());
-  if (max_notification_group_size_ > group_it->second.notifications.size()) {
-    load_notifications_from_database(group_it->first, group_it->second, keep_notification_group_size_);
-  }
-}
-
-void NotificationManager::add_notifications_to_group_begin(NotificationGroups::iterator group_it,
-                                                           vector<Notification> notifications) {
-  CHECK(group_it != groups_.end());
-
-  td::remove_if(notifications, [td = td_, dialog_id = group_it->first.dialog_id](const Notification &notification) {
-    return notification.type->get_notification_type_object(td, dialog_id) == nullptr;
-  });
-
-  if (notifications.empty()) {
-    return;
-  }
-  VLOG(notifications) << "Add to beginning of " << group_it->first << " of size "
-                      << group_it->second.notifications.size() << ' ' << notifications;
-
-  auto group_key = group_it->first;
-  auto final_group_key = group_key;
-  for (auto &notification : notifications) {
-    if (notification.date > final_group_key.last_notification_date) {
-      final_group_key.last_notification_date = notification.date;
-    }
-  }
-  LOG_CHECK(final_group_key.last_notification_date != 0) << final_group_key << ' ' << *group_it << ' ' << notifications;
-
-  bool is_position_changed = final_group_key.last_notification_date != group_key.last_notification_date;
-
-  NotificationGroup group = std::move(group_it->second);
-  if (is_position_changed) {
-    VLOG(notifications) << "Position of notification group is changed from " << group_key << " to " << final_group_key;
-    delete_group(std::move(group_it));
-  }
-
-  auto last_group_key = get_last_updated_group_key();
-  bool was_updated = false;
-  bool is_updated = false;
-  if (is_position_changed) {
-    was_updated = group_key.last_notification_date != 0 && group_key < last_group_key;
-    is_updated = final_group_key.last_notification_date != 0 && final_group_key < last_group_key;
-  } else {
-    CHECK(group_key.last_notification_date != 0);
-    was_updated = is_updated = !(last_group_key < group_key);
-  }
-
-  if (!is_updated) {
-    CHECK(!was_updated);
-    VLOG(notifications) << "There is no need to send updateNotificationGroup in " << group_key
-                        << ", because of newer notification groups";
-    group.notifications.insert(group.notifications.begin(), std::make_move_iterator(notifications.begin()),
-                               std::make_move_iterator(notifications.end()));
-  } else {
-    if (!was_updated) {
-      if (last_group_key.last_notification_date != 0) {
-        // need to remove last notification group to not exceed max_notification_group_count_
-        send_remove_group_update(last_group_key, groups_[last_group_key], vector<int32>());
-      }
-      send_add_group_update(group_key, group, "add_notifications_to_group_begin");
-    }
-
-    vector<Notification> new_notifications;
-    vector<td_api::object_ptr<td_api::notification>> added_notifications;
-    new_notifications.reserve(notifications.size());
-    added_notifications.reserve(notifications.size());
-    for (auto &notification : notifications) {
-      added_notifications.push_back(get_notification_object(td_, group_key.dialog_id, notification));
-      CHECK(added_notifications.back()->type_ != nullptr);
-      new_notifications.push_back(std::move(notification));
-    }
-    notifications = std::move(new_notifications);
-
-    size_t old_notification_count = group.notifications.size();
-    auto updated_notification_count = old_notification_count < max_notification_group_size_
-                                          ? max_notification_group_size_ - old_notification_count
-                                          : 0;
-    if (added_notifications.size() > updated_notification_count) {
-      added_notifications.erase(added_notifications.begin(), added_notifications.end() - updated_notification_count);
-    }
-    auto new_notification_count = old_notification_count < keep_notification_group_size_
-                                      ? keep_notification_group_size_ - old_notification_count
-                                      : 0;
-    if (new_notification_count > notifications.size()) {
-      new_notification_count = notifications.size();
-    }
-    if (new_notification_count != 0) {
-      VLOG(notifications) << "Add " << new_notification_count << " notifications to " << group_key.group_id
-                          << " with current size " << group.notifications.size();
-      group.notifications.insert(group.notifications.begin(),
-                                 std::make_move_iterator(notifications.end() - new_notification_count),
-                                 std::make_move_iterator(notifications.end()));
-    }
-
-    if (!added_notifications.empty()) {
-      add_update_notification_group(td_api::make_object<td_api::updateNotificationGroup>(
-          group_key.group_id.get(), get_notification_group_type_object(group.type),
-          td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup"), 0, 0,
-          group.total_count, std::move(added_notifications), vector<int32>()));
-    }
-  }
-
-  if (is_position_changed) {
-    add_group(std::move(final_group_key), std::move(group), "add_notifications_to_group_begin");
-  } else {
-    CHECK(group_it->first.last_notification_date == 0 || !group.notifications.empty());
-    group_it->second = std::move(group);
-  }
-}
-
-size_t NotificationManager::get_max_notification_group_size() const {
-  return max_notification_group_size_;
-}
-
-NotificationId NotificationManager::get_max_notification_id() const {
-  return current_notification_id_;
-}
-
-NotificationId NotificationManager::get_next_notification_id() {
-  if (is_disabled()) {
-    return NotificationId();
-  }
-  if (current_notification_id_.get() == std::numeric_limits<int32>::max()) {
-    LOG(ERROR) << "Notification identifier overflowed";
-    return NotificationId();
-  }
-
-  current_notification_id_ = NotificationId(current_notification_id_.get() + 1);
-  G()->td_db()->get_binlog_pmc()->set("notification_id_current", to_string(current_notification_id_.get()));
-  return current_notification_id_;
-}
-
-NotificationGroupId NotificationManager::get_next_notification_group_id() {
-  if (is_disabled()) {
-    return NotificationGroupId();
-  }
-  if (current_notification_group_id_.get() == std::numeric_limits<int32>::max()) {
-    LOG(ERROR) << "Notification group identifier overflowed";
-    return NotificationGroupId();
-  }
-
-  current_notification_group_id_ = NotificationGroupId(current_notification_group_id_.get() + 1);
-  G()->td_db()->get_binlog_pmc()->set("notification_group_id_current", to_string(current_notification_group_id_.get()));
-  return current_notification_group_id_;
-}
-
-void NotificationManager::try_reuse_notification_group_id(NotificationGroupId group_id) {
-  if (is_disabled()) {
-    return;
-  }
-  if (!group_id.is_valid()) {
-    return;
-  }
-
-  VLOG(notifications) << "Trying to reuse " << group_id;
-  if (group_id != current_notification_group_id_) {
-    // may be implemented in the future
-    return;
-  }
-
-  auto group_it = get_group(group_id);
-  if (group_it != groups_.end()) {
-    LOG_CHECK(group_it->first.last_notification_date == 0 && group_it->second.total_count == 0)
-        << running_get_difference_ << " " << delayed_notification_update_count_ << " "
-        << unreceived_notification_update_count_ << " " << pending_updates_[group_id.get()].size() << " "
-        << group_it->first << " " << group_it->second;
-    CHECK(group_it->second.notifications.empty());
-    CHECK(group_it->second.pending_notifications.empty());
-    CHECK(!group_it->second.is_being_loaded_from_database);
-    delete_group(std::move(group_it));
-
-    CHECK(running_get_chat_difference_.count(group_id.get()) == 0);
-
-    if (!G()->close_flag()) {
-      flush_pending_notifications_timeout_.cancel_timeout(group_id.get(), "try_reuse_notification_group_id");
-      flush_pending_updates_timeout_.cancel_timeout(group_id.get());
-    }
-    if (pending_updates_.erase(group_id.get()) == 1) {
-      on_delayed_notification_update_count_changed(-1, group_id.get(), "try_reuse_notification_group_id");
-    }
-  }
-
-  current_notification_group_id_ = NotificationGroupId(current_notification_group_id_.get() - 1);
-  G()->td_db()->get_binlog_pmc()->set("notification_group_id_current", to_string(current_notification_group_id_.get()));
-}
-
-NotificationGroupKey NotificationManager::get_last_updated_group_key() const {
-  size_t left = max_notification_group_count_;
-  auto it = groups_.begin();
-  while (it != groups_.end() && left > 1) {
-    ++it;
-    left--;
-  }
-  if (it == groups_.end()) {
-    return NotificationGroupKey();
-  }
-  return it->first;
-}
-
-int32 NotificationManager::get_notification_delay_ms(DialogId dialog_id, const PendingNotification &notification,
-                                                     int32 min_delay_ms) const {
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    return MIN_NOTIFICATION_DELAY_MS;  // there is no reason to delay notifications in secret chats
-  }
-  if (!notification.type->can_be_delayed()) {
-    return MIN_NOTIFICATION_DELAY_MS;
-  }
-
-  auto server_time = G()->server_time();
-  auto delay_ms = [&] {
-    auto online_info = td_->user_manager_->get_my_online_status();
-    if (!online_info.is_online_local && online_info.is_online_remote) {
-      // If we are offline, but online from some other client, then delay notification
-      // for 'notification_cloud_delay' seconds.
-      return notification_cloud_delay_ms_;
-    }
-
-    if (!online_info.is_online_local &&
-        online_info.was_online_remote >
-            max(static_cast<double>(online_info.was_online_local), server_time - online_cloud_timeout_ms_ * 1e-3)) {
-      // If we are offline, but was online from some other client in last 'online_cloud_timeout' seconds
-      // after we had gone offline, then delay notification for 'notification_cloud_delay' seconds.
-      return notification_cloud_delay_ms_;
-    }
-
-    if (online_info.is_online_remote) {
-      // If some other client is online, then delay notification for 'notification_default_delay' seconds.
-      return notification_default_delay_ms_;
-    }
-
-    // otherwise send update without additional delay
-    return 0;
-  }();
-
-  auto passed_time_ms = static_cast<int32>(clamp(server_time - notification.date - 1, 0.0, 1000000.0) * 1000);
-  return max(max(min_delay_ms, delay_ms) - passed_time_ms, MIN_NOTIFICATION_DELAY_MS);
-}
-
-void NotificationManager::add_notification(NotificationGroupId group_id, NotificationGroupType group_type,
-                                           DialogId dialog_id, int32 date, DialogId notification_settings_dialog_id,
-                                           bool disable_notification, int64 ringtone_id, int32 min_delay_ms,
-                                           NotificationId notification_id, unique_ptr<NotificationType> type,
-                                           const char *source) {
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    on_notification_removed(notification_id);
-    return;
-  }
-
-  CHECK(group_id.is_valid());
-  CHECK(dialog_id.is_valid());
-  CHECK(notification_settings_dialog_id.is_valid());
-  LOG_CHECK(notification_id.is_valid()) << notification_id << " " << source;
-  CHECK(type != nullptr);
-  VLOG(notifications) << "Add " << notification_id << " to " << group_id << " of type " << group_type << " in "
-                      << dialog_id << " with settings from " << notification_settings_dialog_id
-                      << (ringtone_id == 0 ? "   silently" : " with sound") << ": " << *type;
-
-  if (!type->is_temporary()) {
-    remove_temporary_notifications(group_id, "add_notification");
-  }
-
-  auto group_it = get_group_force(group_id);
-  if (group_it == groups_.end()) {
-    group_it = add_group(NotificationGroupKey(group_id, dialog_id, 0), NotificationGroup(), "add_notification");
-  }
-  if (group_it->second.notifications.empty() && group_it->second.pending_notifications.empty()) {
-    group_it->second.type = group_type;
-  }
-  CHECK(group_it->second.type == group_type);
-
-  NotificationGroup &group = group_it->second;
-  if (notification_id.get() <= get_last_notification_id(group).get()) {
-    LOG(ERROR) << "Failed to add " << notification_id << " to " << group_id << " of type " << group_type << " in "
-               << dialog_id << ", because have already added " << get_last_notification_id(group);
-    on_notification_removed(notification_id);
-    return;
-  }
-  auto object_id = type->get_object_id();
-  if (object_id.is_valid() && object_id <= get_last_object_id(group)) {
-    LOG(ERROR) << "Failed to add " << notification_id << " of type " << *type << " to " << group_id << " of type "
-               << group_type << " in " << dialog_id << ", because have already added notification about "
-               << get_last_object_id(group);
-    on_notification_removed(notification_id);
-    return;
-  }
-  if (notification_settings_dialog_id != dialog_id) {
-    td_->dialog_manager_->force_create_dialog(notification_settings_dialog_id, "add_notification", true);
-  }
-
-  PendingNotification notification;
-  notification.date = date;
-  notification.settings_dialog_id = notification_settings_dialog_id;
-  notification.disable_notification = disable_notification;
-  notification.ringtone_id = disable_notification ? 0 : ringtone_id;
-  notification.notification_id = notification_id;
-  notification.type = std::move(type);
-
-  auto delay_ms = get_notification_delay_ms(dialog_id, notification, min_delay_ms);
-  VLOG(notifications) << "Delay " << notification_id << " for " << delay_ms << " milliseconds";
-  auto flush_time = delay_ms * 0.001 + Time::now();
-
-  if (group.pending_notifications_flush_time == 0 || flush_time < group.pending_notifications_flush_time) {
-    group.pending_notifications_flush_time = flush_time;
-    if (!G()->close_flag()) {
-      flush_pending_notifications_timeout_.set_timeout_at(group_id.get(), group.pending_notifications_flush_time);
-    }
-  }
-  if (group.pending_notifications.empty()) {
-    on_delayed_notification_update_count_changed(1, group_id.get(), source);
-  }
-  group.pending_notifications.push_back(std::move(notification));
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NotificationManager::NotificationUpdate &update) {
-  if (update.update == nullptr) {
-    return string_builder << "null";
-  }
-  switch (update.update->get_id()) {
-    case td_api::updateNotification::ID: {
-      auto p = static_cast<const td_api::updateNotification *>(update.update);
-      return string_builder << "update[" << NotificationId(p->notification_->id_) << " from "
-                            << NotificationGroupId(p->notification_group_id_) << ']';
-    }
-    case td_api::updateNotificationGroup::ID: {
-      auto p = static_cast<const td_api::updateNotificationGroup *>(update.update);
-      vector<int32> added_notification_ids;
-      for (auto &notification : p->added_notifications_) {
-        added_notification_ids.push_back(notification->id_);
-      }
-
-      return string_builder << "update[" << NotificationGroupId(p->notification_group_id_) << " of type "
-                            << get_notification_group_type(p->type_) << " from " << DialogId(p->chat_id_)
-                            << " with settings from " << DialogId(p->notification_settings_chat_id_)
-                            << (p->notification_sound_id_ == 0 ? "   silently" : " with sound")
-                            << "; total_count = " << p->total_count_ << ", add " << added_notification_ids
-                            << ", remove " << p->removed_notification_ids_;
-    }
-    default:
-      UNREACHABLE();
-      return string_builder << "unknown";
-  }
-}
-
-NotificationManager::NotificationUpdate NotificationManager::as_notification_update(const td_api::Update *update) {
-  return NotificationUpdate{update};
-}
-
-void NotificationManager::add_update(int32 group_id, td_api::object_ptr<td_api::Update> update) {
-  if (!is_binlog_processed_ || !is_inited_) {
-    return;
-  }
-  VLOG(notifications) << "Add " << as_notification_update(update.get());
-  auto &updates = pending_updates_[group_id];
-  if (updates.empty()) {
-    on_delayed_notification_update_count_changed(1, group_id, "add_update");
-  }
-  updates.push_back(std::move(update));
-  if (!G()->close_flag()) {
-    if (!running_get_difference_ && running_get_chat_difference_.count(group_id) == 0) {
-      flush_pending_updates_timeout_.add_timeout_in(group_id, MIN_UPDATE_DELAY_MS * 1e-3);
-    } else {
-      flush_pending_updates_timeout_.set_timeout_in(group_id, MAX_UPDATE_DELAY_MS * 1e-3);
-    }
-  }
-}
-
-void NotificationManager::add_update_notification_group(td_api::object_ptr<td_api::updateNotificationGroup> update) {
-  auto group_id = update->notification_group_id_;
-  if (update->notification_settings_chat_id_ == 0) {
-    update->notification_settings_chat_id_ = update->chat_id_;
-  }
-  if (!update->added_notifications_.empty() && !update->removed_notification_ids_.empty()) {
-    // just in case
-    td::remove_if(update->added_notifications_, [&](const td_api::object_ptr<td_api::notification> &notification) {
-      CHECK(notification != nullptr);
-      if (td::contains(update->removed_notification_ids_, notification->id_)) {
-        LOG(ERROR) << "Have the same notification as added and removed";
-        return true;
-      }
-      return false;
-    });
-  }
-  add_update(group_id, std::move(update));
-}
-
-void NotificationManager::add_update_notification(NotificationGroupId notification_group_id, DialogId dialog_id,
-                                                  const Notification &notification) {
-  auto notification_object = get_notification_object(td_, dialog_id, notification);
-  if (notification_object->type_ == nullptr) {
-    return;
-  }
-
-  add_update(notification_group_id.get(), td_api::make_object<td_api::updateNotification>(
-                                              notification_group_id.get(), std::move(notification_object)));
-  if (!notification.type->can_be_delayed()) {
-    force_flush_pending_updates(notification_group_id, "add_update_notification");
-  }
-}
-
-void NotificationManager::flush_pending_updates(int32 group_id, const char *source) {
-  // no check for G()->close_flag() to flush pending notifications even while closing
-  auto it = pending_updates_.find(group_id);
-  if (it == pending_updates_.end()) {
-    return;
-  }
-
-  auto updates = std::move(it->second);
-  pending_updates_.erase(it);
-
-  if (is_destroyed_) {
-    return;
-  }
-
-  VLOG(notifications) << "Send " << updates.size() << " pending updates in " << NotificationGroupId(group_id)
-                      << " from " << source;
-  for (auto &update : updates) {
-    VLOG(notifications) << "Have " << as_notification_update(update.get());
-  }
-
-  td::remove_if(updates, [](auto &update) { return update == nullptr; });
-
-  // if a notification was added, then deleted and then re-added we need to keep
-  // first addition, because it can be with sound,
-  // deletion, because number of notification should never exceed max_notification_group_size_,
-  // and second addition, because we has kept the deletion
-
-  // calculate last state of all notifications
-  FlatHashSet<int32> added_notification_ids;
-  FlatHashSet<int32> edited_notification_ids;
-  FlatHashSet<int32> removed_notification_ids;
-  for (auto &update : updates) {
-    CHECK(update != nullptr);
-    if (update->get_id() == td_api::updateNotificationGroup::ID) {
-      auto update_ptr = static_cast<td_api::updateNotificationGroup *>(update.get());
-      for (auto &notification : update_ptr->added_notifications_) {
-        auto notification_id = notification->id_;
-        CHECK(notification_id != 0);
-        bool is_inserted = added_notification_ids.insert(notification_id).second;
-        CHECK(is_inserted);                                          // there must be no additions after addition
-        CHECK(edited_notification_ids.count(notification_id) == 0);  // there must be no additions after edit
-        removed_notification_ids.erase(notification_id);
-      }
-      for (auto &notification_id : update_ptr->removed_notification_ids_) {
-        CHECK(notification_id != 0);
-        added_notification_ids.erase(notification_id);
-        edited_notification_ids.erase(notification_id);
-        if (!removed_notification_ids.insert(notification_id).second) {
-          // sometimes there can be deletion of notification without previous addition, because the notification
-          // has already been deleted at the time of addition and get_notification_object_type was nullptr
-          VLOG(notifications) << "Remove duplicate deletion of " << notification_id;
-          notification_id = 0;
-        }
-      }
-      td::remove_if(update_ptr->removed_notification_ids_, [](auto &notification_id) { return notification_id == 0; });
-    } else {
-      CHECK(update->get_id() == td_api::updateNotification::ID);
-      auto update_ptr = static_cast<td_api::updateNotification *>(update.get());
-      auto notification_id = update_ptr->notification_->id_;
-      CHECK(notification_id != 0);
-      CHECK(removed_notification_ids.count(notification_id) == 0);  // there must be no edits of deleted notifications
-      added_notification_ids.erase(notification_id);
-      edited_notification_ids.insert(notification_id);
-    }
-  }
-
-  // we need to keep only additions of notifications from added_notification_ids/edited_notification_ids and
-  // all edits of notifications from edited_notification_ids
-  // deletions of a notification can be removed, only if the addition of the notification has already been deleted
-  // deletions of all unkept notifications can be moved to the first updateNotificationGroup
-  // after that at every moment there are no more active notifications than in the last moment,
-  // so left deletions after add/edit can be safely removed and following additions can be treated as edits
-  // we still need to keep deletions coming first, because we can't have 2 consequent additions
-  // from all additions of the same notification, we need to preserve the first, because it can be with sound,
-  // all other additions and edits can be merged to the first addition/edit
-  // i.e. in edit+delete+add chain we want to remove deletion and merge addition to the edit
-
-  auto group_key = group_keys_[NotificationGroupId(group_id)];
-  bool is_hidden = group_key.last_notification_date == 0 || get_last_updated_group_key() < group_key;
-  bool is_changed = true;
-  while (is_changed) {
-    is_changed = false;
-
-    size_t cur_pos = 0;
-    FlatHashMap<int32, size_t> first_add_notification_pos;
-    FlatHashMap<int32, size_t> first_edit_notification_pos;
-    FlatHashSet<int32> can_be_deleted_notification_ids;
-    vector<int32> moved_deleted_notification_ids;
-    size_t first_notification_group_pos = 0;
-
-    for (auto &update : updates) {
-      cur_pos++;
-
-      CHECK(update != nullptr);
-      if (update->get_id() == td_api::updateNotificationGroup::ID) {
-        auto update_ptr = static_cast<td_api::updateNotificationGroup *>(update.get());
-
-        for (auto &notification : update_ptr->added_notifications_) {
-          auto notification_id = notification->id_;
-          CHECK(notification_id != 0);
-          bool is_needed =
-              added_notification_ids.count(notification_id) != 0 || edited_notification_ids.count(notification_id) != 0;
-          if (!is_needed) {
-            VLOG(notifications) << "Remove unneeded addition of " << notification_id << " in update " << cur_pos;
-            can_be_deleted_notification_ids.insert(notification_id);
-            notification = nullptr;
-            is_changed = true;
-            continue;
-          }
-
-          auto edit_it = first_edit_notification_pos.find(notification_id);
-          if (edit_it != first_edit_notification_pos.end()) {
-            VLOG(notifications) << "Move addition of " << notification_id << " in update " << cur_pos
-                                << " to edit in update " << edit_it->second;
-            CHECK(edit_it->second < cur_pos);
-            auto previous_update_ptr = static_cast<td_api::updateNotification *>(updates[edit_it->second - 1].get());
-            CHECK(previous_update_ptr->notification_->id_ == notification_id);
-            previous_update_ptr->notification_->type_ = std::move(notification->type_);
-            is_changed = true;
-            notification = nullptr;
-            continue;
-          }
-          auto add_it = first_add_notification_pos.find(notification_id);
-          if (add_it != first_add_notification_pos.end()) {
-            VLOG(notifications) << "Move addition of " << notification_id << " in update " << cur_pos << " to update "
-                                << add_it->second;
-            CHECK(add_it->second < cur_pos);
-            auto previous_update_ptr =
-                static_cast<td_api::updateNotificationGroup *>(updates[add_it->second - 1].get());
-            bool is_found = false;
-            for (auto &prev_notification : previous_update_ptr->added_notifications_) {
-              if (prev_notification->id_ == notification_id) {
-                prev_notification->type_ = std::move(notification->type_);
-                is_found = true;
-                break;
-              }
-            }
-            CHECK(is_found);
-            is_changed = true;
-            notification = nullptr;
-            continue;
-          }
-
-          // it is a first addition/edit of needed notification
-          first_add_notification_pos[notification_id] = cur_pos;
-        }
-        td::remove_if(update_ptr->added_notifications_, [](auto &notification) { return notification == nullptr; });
-        if (update_ptr->added_notifications_.empty() && update_ptr->notification_sound_id_ != 0) {
-          update_ptr->notification_sound_id_ = 0;
-          is_changed = true;
-        }
-
-        for (auto &notification_id : update_ptr->removed_notification_ids_) {
-          bool is_needed =
-              added_notification_ids.count(notification_id) != 0 || edited_notification_ids.count(notification_id) != 0;
-          if (can_be_deleted_notification_ids.count(notification_id) == 1) {
-            CHECK(!is_needed);
-            VLOG(notifications) << "Remove unneeded deletion of " << notification_id << " in update " << cur_pos;
-            notification_id = 0;
-            is_changed = true;
-            continue;
-          }
-          if (!is_needed) {
-            if (first_notification_group_pos != 0) {
-              VLOG(notifications) << "Need to keep deletion of " << notification_id << " in update " << cur_pos
-                                  << ", but can move it to the first updateNotificationGroup at pos "
-                                  << first_notification_group_pos;
-              moved_deleted_notification_ids.push_back(notification_id);
-              notification_id = 0;
-              is_changed = true;
-            }
-            continue;
-          }
-
-          if (first_add_notification_pos.count(notification_id) != 0 ||
-              first_edit_notification_pos.count(notification_id) != 0) {
-            // the notification will be re-added, and we will be able to merge the addition with previous update, so we can just remove the deletion
-            VLOG(notifications) << "Remove unneeded deletion in update " << cur_pos;
-            notification_id = 0;
-            is_changed = true;
-            continue;
-          }
-
-          // we need to keep the deletion, because otherwise we will have 2 consequent additions
-        }
-        td::remove_if(update_ptr->removed_notification_ids_,
-                      [](auto &notification_id) { return notification_id == 0; });
-
-        if (update_ptr->removed_notification_ids_.empty() && update_ptr->added_notifications_.empty()) {
-          for (size_t i = cur_pos - 1; i > 0; i--) {
-            if (updates[i - 1] != nullptr && updates[i - 1]->get_id() == td_api::updateNotificationGroup::ID) {
-              VLOG(notifications) << "Move total_count from empty update " << cur_pos << " to update " << i;
-              auto previous_update_ptr = static_cast<td_api::updateNotificationGroup *>(updates[i - 1].get());
-              previous_update_ptr->type_ = std::move(update_ptr->type_);
-              previous_update_ptr->total_count_ = update_ptr->total_count_;
-              is_changed = true;
-              update = nullptr;
-              break;
-            }
-          }
-          if (update != nullptr && cur_pos == 1) {
-            bool is_empty_group =
-                added_notification_ids.empty() && edited_notification_ids.empty() && update_ptr->total_count_ == 0;
-            if (updates.size() > 1 || (is_hidden && !is_empty_group)) {
-              VLOG(notifications) << "Remove empty update " << cur_pos;
-              CHECK(moved_deleted_notification_ids.empty());
-              is_changed = true;
-              update = nullptr;
-            }
-          }
-        }
-
-        if (first_notification_group_pos == 0 && update != nullptr) {
-          first_notification_group_pos = cur_pos;
-        }
-      } else {
-        CHECK(update->get_id() == td_api::updateNotification::ID);
-        auto update_ptr = static_cast<td_api::updateNotification *>(update.get());
-        auto notification_id = update_ptr->notification_->id_;
-        bool is_needed =
-            added_notification_ids.count(notification_id) != 0 || edited_notification_ids.count(notification_id) != 0;
-        if (!is_needed) {
-          VLOG(notifications) << "Remove unneeded update " << cur_pos;
-          is_changed = true;
-          update = nullptr;
-          continue;
-        }
-        auto edit_it = first_edit_notification_pos.find(notification_id);
-        if (edit_it != first_edit_notification_pos.end()) {
-          VLOG(notifications) << "Move edit of " << notification_id << " in update " << cur_pos << " to update "
-                              << edit_it->second;
-          CHECK(edit_it->second < cur_pos);
-          auto previous_update_ptr = static_cast<td_api::updateNotification *>(updates[edit_it->second - 1].get());
-          CHECK(previous_update_ptr->notification_->id_ == notification_id);
-          previous_update_ptr->notification_->type_ = std::move(update_ptr->notification_->type_);
-          is_changed = true;
-          update = nullptr;
-          continue;
-        }
-        auto add_it = first_add_notification_pos.find(notification_id);
-        if (add_it != first_add_notification_pos.end()) {
-          VLOG(notifications) << "Move edit of " << notification_id << " in update " << cur_pos << " to update "
-                              << add_it->second;
-          CHECK(add_it->second < cur_pos);
-          auto previous_update_ptr = static_cast<td_api::updateNotificationGroup *>(updates[add_it->second - 1].get());
-          bool is_found = false;
-          for (auto &notification : previous_update_ptr->added_notifications_) {
-            if (notification->id_ == notification_id) {
-              notification->type_ = std::move(update_ptr->notification_->type_);
-              is_found = true;
-              break;
-            }
-          }
-          CHECK(is_found);
-          is_changed = true;
-          update = nullptr;
-          continue;
-        }
-
-        // it is a first addition/edit of needed notification
-        first_edit_notification_pos[notification_id] = cur_pos;
-      }
-    }
-    if (!moved_deleted_notification_ids.empty()) {
-      CHECK(first_notification_group_pos != 0);
-      auto &update = updates[first_notification_group_pos - 1];
-      CHECK(update->get_id() == td_api::updateNotificationGroup::ID);
-      auto update_ptr = static_cast<td_api::updateNotificationGroup *>(update.get());
-      append(update_ptr->removed_notification_ids_, std::move(moved_deleted_notification_ids));
-      auto old_size = update_ptr->removed_notification_ids_.size();
-      td::unique(update_ptr->removed_notification_ids_);
-      CHECK(old_size == update_ptr->removed_notification_ids_.size());
-    }
-
-    td::remove_if(updates, [](auto &update) { return update == nullptr; });
-    if (updates.empty()) {
-      VLOG(notifications) << "There are no updates to send in " << NotificationGroupId(group_id);
-      break;
-    }
-
-    auto has_common_notifications = [](const vector<td_api::object_ptr<td_api::notification>> &notifications,
-                                       const vector<int32> &notification_ids) {
-      for (auto &notification : notifications) {
-        if (td::contains(notification_ids, notification->id_)) {
-          return true;
-        }
-      }
-      return false;
-    };
-
-    size_t last_update_pos = 0;
-    for (size_t i = 1; i < updates.size(); i++) {
-      if (updates[last_update_pos]->get_id() == td_api::updateNotificationGroup::ID &&
-          updates[i]->get_id() == td_api::updateNotificationGroup::ID) {
-        auto last_update_ptr = static_cast<td_api::updateNotificationGroup *>(updates[last_update_pos].get());
-        auto update_ptr = static_cast<td_api::updateNotificationGroup *>(updates[i].get());
-        if ((last_update_ptr->notification_settings_chat_id_ == update_ptr->notification_settings_chat_id_ ||
-             last_update_ptr->added_notifications_.empty()) &&
-            !has_common_notifications(last_update_ptr->added_notifications_, update_ptr->removed_notification_ids_) &&
-            !has_common_notifications(update_ptr->added_notifications_, last_update_ptr->removed_notification_ids_) &&
-            last_update_ptr->notification_sound_id_ == update_ptr->notification_sound_id_) {
-          // combine updates
-          VLOG(notifications) << "Combine " << as_notification_update(last_update_ptr) << " and "
-                              << as_notification_update(update_ptr);
-          CHECK(last_update_ptr->notification_group_id_ == update_ptr->notification_group_id_);
-          CHECK(last_update_ptr->chat_id_ == update_ptr->chat_id_);
-          last_update_ptr->notification_settings_chat_id_ = update_ptr->notification_settings_chat_id_;
-          last_update_ptr->type_ = std::move(update_ptr->type_);
-          last_update_ptr->total_count_ = update_ptr->total_count_;
-          append(last_update_ptr->added_notifications_, std::move(update_ptr->added_notifications_));
-          append(last_update_ptr->removed_notification_ids_, std::move(update_ptr->removed_notification_ids_));
-          updates[i] = nullptr;
-          is_changed = true;
-          continue;
-        }
-      }
-      last_update_pos++;
-      if (last_update_pos != i) {
-        updates[last_update_pos] = std::move(updates[i]);
-      }
-    }
-    updates.resize(last_update_pos + 1);
-  }
-
-  for (auto &update : updates) {
-    CHECK(update != nullptr);
-    if (update->get_id() == td_api::updateNotificationGroup::ID) {
-      auto update_ptr = static_cast<td_api::updateNotificationGroup *>(update.get());
-      std::sort(update_ptr->added_notifications_.begin(), update_ptr->added_notifications_.end(),
-                [](const auto &lhs, const auto &rhs) { return lhs->id_ < rhs->id_; });
-      std::sort(update_ptr->removed_notification_ids_.begin(), update_ptr->removed_notification_ids_.end());
-    }
-    VLOG(notifications) << "Send " << as_notification_update(update.get());
-    send_closure(G()->td(), &Td::send_update, std::move(update));
-  }
-  on_delayed_notification_update_count_changed(-1, group_id, "flush_pending_updates");
-
-  auto group_it = get_group_force(NotificationGroupId(group_id));
-  CHECK(group_it != groups_.end());
-  NotificationGroup &group = group_it->second;
-  for (auto &notification : group.notifications) {
-    on_notification_processed(notification.notification_id);
-  }
-}
-
-void NotificationManager::force_flush_pending_updates(NotificationGroupId group_id, const char *source) {
-  if (!G()->close_flag()) {
-    flush_pending_updates_timeout_.cancel_timeout(group_id.get());
-  }
-  flush_pending_updates(group_id.get(), source);
-}
-
-void NotificationManager::flush_all_pending_updates(bool include_delayed_chats, const char *source) {
-  VLOG(notifications) << "Flush all pending notification updates "
-                      << (include_delayed_chats ? "with delayed chats " : "") << "from " << source;
-  if (!include_delayed_chats && running_get_difference_) {
-    return;
-  }
-
-  vector<NotificationGroupKey> ready_group_keys;
-  for (const auto &it : pending_updates_) {
-    if (include_delayed_chats || running_get_chat_difference_.count(it.first) == 0) {
-      auto group_it = get_group(NotificationGroupId(it.first));
-      CHECK(group_it != groups_.end());
-      ready_group_keys.push_back(group_it->first);
-    }
-  }
-
-  // flush groups in reverse order to not exceed max_notification_group_count_
-  VLOG(notifications) << "Flush pending updates in " << ready_group_keys.size() << " notification groups";
-  std::sort(ready_group_keys.begin(), ready_group_keys.end());
-  for (const auto &group_key : reversed(ready_group_keys)) {
-    force_flush_pending_updates(group_key.group_id, "flush_all_pending_updates");
-  }
-  if (include_delayed_chats) {
-    CHECK(pending_updates_.empty());
-  }
-}
-
-bool NotificationManager::do_flush_pending_notifications(NotificationGroupKey &group_key, NotificationGroup &group,
-                                                         vector<PendingNotification> &pending_notifications) {
-  // no check for G()->close_flag() to flush pending notifications even while closing
-  if (pending_notifications.empty()) {
-    return false;
-  }
-
-  VLOG(notifications) << "Do flush " << pending_notifications.size() << " pending notifications in " << group_key
-                      << " with known " << group.notifications.size() << " from total of " << group.total_count
-                      << " notifications";
-
-  size_t old_notification_count = group.notifications.size();
-  size_t shown_notification_count = min(old_notification_count, max_notification_group_size_);
-
-  bool force_update = false;
-  vector<td_api::object_ptr<td_api::notification>> added_notifications;
-  added_notifications.reserve(pending_notifications.size());
-  for (auto &pending_notification : pending_notifications) {
-    Notification notification(pending_notification.notification_id, pending_notification.date,
-                              pending_notification.disable_notification, std::move(pending_notification.type));
-    added_notifications.push_back(get_notification_object(td_, group_key.dialog_id, notification));
-    CHECK(added_notifications.back()->type_ != nullptr);
-
-    if (!notification.type->can_be_delayed()) {
-      force_update = true;
-    }
-    group.notifications.push_back(std::move(notification));
-  }
-  group.total_count += narrow_cast<int32>(added_notifications.size());
-  if (added_notifications.size() > max_notification_group_size_) {
-    added_notifications.erase(added_notifications.begin(), added_notifications.end() - max_notification_group_size_);
-  }
-
-  vector<int32> removed_notification_ids;
-  if (shown_notification_count + added_notifications.size() > max_notification_group_size_) {
-    auto removed_notification_count =
-        shown_notification_count + added_notifications.size() - max_notification_group_size_;
-    removed_notification_ids.reserve(removed_notification_count);
-    for (size_t i = 0; i < removed_notification_count; i++) {
-      removed_notification_ids.push_back(
-          group.notifications[old_notification_count - shown_notification_count + i].notification_id.get());
-    }
-  }
-
-  if (!added_notifications.empty()) {
-    add_update_notification_group(td_api::make_object<td_api::updateNotificationGroup>(
-        group_key.group_id.get(), get_notification_group_type_object(group.type),
-        td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup 2"),
-        td_->dialog_manager_->get_chat_id_object(pending_notifications[0].settings_dialog_id,
-                                                 "updateNotificationGroup 3"),
-        pending_notifications[0].ringtone_id, group.total_count, std::move(added_notifications),
-        std::move(removed_notification_ids)));
-  } else {
-    CHECK(removed_notification_ids.empty());
-  }
-  pending_notifications.clear();
-  return force_update;
-}
-
-td_api::object_ptr<td_api::updateNotificationGroup> NotificationManager::get_remove_group_update(
-    const NotificationGroupKey &group_key, const NotificationGroup &group,
-    vector<int32> &&removed_notification_ids) const {
-  auto total_size = group.notifications.size();
-  CHECK(removed_notification_ids.size() <= max_notification_group_size_);
-  auto removed_size = min(total_size, max_notification_group_size_ - removed_notification_ids.size());
-  removed_notification_ids.reserve(removed_size + removed_notification_ids.size());
-  for (size_t i = total_size - removed_size; i < total_size; i++) {
-    removed_notification_ids.push_back(group.notifications[i].notification_id.get());
-  }
-
-  if (removed_notification_ids.empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::updateNotificationGroup>(
-      group_key.group_id.get(), get_notification_group_type_object(group.type),
-      td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup 4"),
-      td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup 10"), 0, group.total_count,
-      vector<td_api::object_ptr<td_api::notification>>(), std::move(removed_notification_ids));
-}
-
-void NotificationManager::send_remove_group_update(const NotificationGroupKey &group_key,
-                                                   const NotificationGroup &group,
-                                                   vector<int32> &&removed_notification_ids) {
-  VLOG(notifications) << "Remove " << group_key.group_id;
-  auto update = get_remove_group_update(group_key, group, std::move(removed_notification_ids));
-  if (update != nullptr) {
-    add_update_notification_group(std::move(update));
-  }
-}
-
-void NotificationManager::send_add_group_update(const NotificationGroupKey &group_key, const NotificationGroup &group,
-                                                const char *source) {
-  VLOG(notifications) << "Add " << group_key.group_id << " from " << source;
-  auto total_size = group.notifications.size();
-  auto added_size = min(total_size, max_notification_group_size_);
-  vector<td_api::object_ptr<td_api::notification>> added_notifications;
-  added_notifications.reserve(added_size);
-  for (size_t i = total_size - added_size; i < total_size; i++) {
-    added_notifications.push_back(get_notification_object(td_, group_key.dialog_id, group.notifications[i]));
-    if (added_notifications.back()->type_ == nullptr) {
-      added_notifications.pop_back();
-    }
-  }
-
-  if (!added_notifications.empty()) {
-    add_update_notification_group(td_api::make_object<td_api::updateNotificationGroup>(
-        group_key.group_id.get(), get_notification_group_type_object(group.type),
-        td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup 5"), 0, 0,
-        group.total_count, std::move(added_notifications), vector<int32>()));
-  }
-}
-
-void NotificationManager::flush_pending_notifications(NotificationGroupId group_id) {
-  auto group_it = get_group(group_id);
-  if (group_it == groups_.end()) {
-    return;
-  }
-
-  td::remove_if(group_it->second.pending_notifications,
-                [td = td_, dialog_id = group_it->first.dialog_id](const PendingNotification &pending_notification) {
-                  return pending_notification.type->get_notification_type_object(td, dialog_id) == nullptr;
-                });
-
-  if (group_it->second.pending_notifications.empty()) {
-    return;
-  }
-
-  auto group_key = group_it->first;
-  auto group = std::move(group_it->second);
-
-  delete_group(std::move(group_it));
-
-  auto final_group_key = group_key;
-  for (auto &pending_notification : group.pending_notifications) {
-    if (pending_notification.date >= final_group_key.last_notification_date) {
-      final_group_key.last_notification_date = pending_notification.date;
-    }
-  }
-  CHECK(final_group_key.last_notification_date != 0);
-
-  VLOG(notifications) << "Flush pending notifications in " << group_key << " up to "
-                      << final_group_key.last_notification_date;
-
-  auto last_group_key = get_last_updated_group_key();
-  bool was_updated = group_key.last_notification_date != 0 && group_key < last_group_key;
-  bool is_updated = final_group_key < last_group_key;
-  bool force_update = false;
-
-  NotificationGroupId removed_group_id;
-  if (!is_updated) {
-    CHECK(!was_updated);
-    VLOG(notifications) << "There is no need to send updateNotificationGroup in " << group_key
-                        << ", because of newer notification groups";
-    group.total_count += narrow_cast<int32>(group.pending_notifications.size());
-    for (auto &pending_notification : group.pending_notifications) {
-      group.notifications.emplace_back(pending_notification.notification_id, pending_notification.date,
-                                       pending_notification.disable_notification, std::move(pending_notification.type));
-    }
-  } else {
-    if (!was_updated) {
-      if (last_group_key.last_notification_date != 0) {
-        // need to remove last notification group to not exceed max_notification_group_count_
-        removed_group_id = last_group_key.group_id;
-        send_remove_group_update(last_group_key, groups_[last_group_key], vector<int32>());
-      }
-      send_add_group_update(group_key, group, "flush_pending_notifications");
-    }
-
-    DialogId notification_settings_dialog_id;
-    int64 ringtone_id = -1;
-
-    // split notifications by groups with common settings
-    vector<PendingNotification> grouped_notifications;
-    for (auto &pending_notification : group.pending_notifications) {
-      if (notification_settings_dialog_id != pending_notification.settings_dialog_id ||
-          ringtone_id != pending_notification.ringtone_id) {
-        if (do_flush_pending_notifications(group_key, group, grouped_notifications)) {
-          force_update = true;
-        }
-        notification_settings_dialog_id = pending_notification.settings_dialog_id;
-        ringtone_id = pending_notification.ringtone_id;
-      }
-      grouped_notifications.push_back(std::move(pending_notification));
-    }
-    if (do_flush_pending_notifications(group_key, group, grouped_notifications)) {
-      force_update = true;
-    }
-  }
-
-  group.pending_notifications_flush_time = 0;
-  group.pending_notifications.clear();
-  on_delayed_notification_update_count_changed(-1, group_id.get(), "flush_pending_notifications");
-  // if we can delete a lot of notifications simultaneously
-  if (group.notifications.size() > keep_notification_group_size_ + EXTRA_GROUP_SIZE &&
-      is_database_notification_group_type(group.type)) {
-    // keep only keep_notification_group_size_ last notifications in memory
-    for (auto it = group.notifications.begin(); it != group.notifications.end() - keep_notification_group_size_; ++it) {
-      on_notification_removed(it->notification_id);
-    }
-    group.notifications.erase(group.notifications.begin(), group.notifications.end() - keep_notification_group_size_);
-    group.is_loaded_from_database = false;
-  }
-
-  add_group(std::move(final_group_key), std::move(group), "flush_pending_notifications");
-
-  if (force_update) {
-    if (removed_group_id.is_valid()) {
-      force_flush_pending_updates(removed_group_id, "flush_pending_notifications 1");
-    }
-    force_flush_pending_updates(group_key.group_id, "flush_pending_notifications 2");
-  }
-}
-
-void NotificationManager::flush_all_pending_notifications() {
-  std::multimap<int32, NotificationGroupId> group_ids;
-  for (auto &group_it : groups_) {
-    if (!group_it.second.pending_notifications.empty()) {
-      group_ids.emplace(group_it.second.pending_notifications.back().date, group_it.first.group_id);
-    }
-  }
-
-  // flush groups in order of last notification date
-  VLOG(notifications) << "Flush pending notifications in " << group_ids.size() << " notification groups";
-  for (auto &it : group_ids) {
-    if (!G()->close_flag()) {
-      flush_pending_notifications_timeout_.cancel_timeout(it.second.get(), "flush_all_pending_notifications");
-    }
-    flush_pending_notifications(it.second);
-  }
-}
-
-void NotificationManager::edit_notification(NotificationGroupId group_id, NotificationId notification_id,
-                                            unique_ptr<NotificationType> type) {
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return;
-  }
-  if (!group_id.is_valid()) {
-    return;
-  }
-
-  CHECK(notification_id.is_valid());
-  CHECK(type != nullptr);
-  VLOG(notifications) << "Edit " << notification_id << ": " << *type;
-
-  auto group_it = get_group(group_id);
-  if (group_it == groups_.end()) {
-    return;
-  }
-  auto &group = group_it->second;
-  for (size_t i = 0; i < group.notifications.size(); i++) {
-    auto &notification = group.notifications[i];
-    if (notification.notification_id == notification_id) {
-      if (notification.type->get_object_id() != type->get_object_id() ||
-          notification.type->is_temporary() != type->is_temporary()) {
-        LOG(ERROR) << "Ignore edit of " << notification_id << " with " << *type << ", because previous type is "
-                   << *notification.type;
-        return;
-      }
-
-      notification.type = std::move(type);
-      if (i + max_notification_group_size_ >= group.notifications.size() &&
-          !(get_last_updated_group_key() < group_it->first)) {
-        CHECK(group_it->first.last_notification_date != 0);
-        add_update_notification(group_it->first.group_id, group_it->first.dialog_id, notification);
-      }
-      return;
-    }
-  }
-  for (auto &notification : group.pending_notifications) {
-    if (notification.notification_id == notification_id) {
-      if (notification.type->get_object_id() != type->get_object_id() ||
-          notification.type->is_temporary() != type->is_temporary()) {
-        LOG(ERROR) << "Ignore edit of " << notification_id << " with " << *type << ", because previous type is "
-                   << *notification.type;
-        return;
-      }
-
-      notification.type = std::move(type);
-      return;
-    }
-  }
-}
-
-void NotificationManager::on_notification_processed(NotificationId notification_id) {
-  auto promise_it = push_notification_promises_.find(notification_id);
-  if (promise_it != push_notification_promises_.end()) {
-    auto promises = std::move(promise_it->second);
-    push_notification_promises_.erase(promise_it);
-
-    set_promises(promises);
-  }
-}
-
-void NotificationManager::on_notification_removed(NotificationId notification_id) {
-  VLOG(notifications) << "In on_notification_removed with " << notification_id;
-
-  auto add_it = temporary_notification_log_event_ids_.find(notification_id);
-  if (add_it == temporary_notification_log_event_ids_.end()) {
-    return;
-  }
-
-  auto edit_it = temporary_edit_notification_log_event_ids_.find(notification_id);
-  if (edit_it != temporary_edit_notification_log_event_ids_.end()) {
-    VLOG(notifications) << "Remove from binlog edit of " << notification_id << " with log event " << edit_it->second;
-    if (!is_being_destroyed_) {
-      binlog_erase(G()->td_db()->get_binlog(), edit_it->second);
-    }
-    temporary_edit_notification_log_event_ids_.erase(edit_it);
-  }
-
-  VLOG(notifications) << "Remove from binlog " << notification_id << " with log event " << add_it->second;
-  if (!is_being_destroyed_) {
-    binlog_erase(G()->td_db()->get_binlog(), add_it->second);
-  }
-  temporary_notification_log_event_ids_.erase(add_it);
-
-  auto erased_notification_count = temporary_notifications_.erase(temporary_notification_object_ids_[notification_id]);
-  auto erased_message_id_count = temporary_notification_object_ids_.erase(notification_id);
-  CHECK(erased_notification_count > 0);
-  CHECK(erased_message_id_count > 0);
-
-  on_notification_processed(notification_id);
-}
-
-void NotificationManager::on_notifications_removed(
-    NotificationGroups::iterator &&group_it, vector<td_api::object_ptr<td_api::notification>> &&added_notifications,
-    vector<int32> &&removed_notification_ids, bool force_update) {
-  VLOG(notifications) << "In on_notifications_removed for " << group_it->first.group_id << " with "
-                      << added_notifications.size() << " added notifications and " << removed_notification_ids.size()
-                      << " removed notifications, new total_count = " << group_it->second.total_count;
-  auto group_key = group_it->first;
-  auto final_group_key = group_key;
-  final_group_key.last_notification_date = 0;
-  for (auto &notification : group_it->second.notifications) {
-    if (notification.date > final_group_key.last_notification_date) {
-      final_group_key.last_notification_date = notification.date;
-    }
-  }
-
-  bool is_position_changed = final_group_key.last_notification_date != group_key.last_notification_date;
-
-  NotificationGroup group = std::move(group_it->second);
-  if (is_position_changed) {
-    VLOG(notifications) << "Position of notification group is changed from " << group_key << " to " << final_group_key;
-    delete_group(std::move(group_it));
-  }
-
-  auto last_group_key = get_last_updated_group_key();
-  bool was_updated = false;
-  bool is_updated = false;
-  if (is_position_changed) {
-    was_updated = group_key.last_notification_date != 0 && group_key < last_group_key;
-    is_updated = final_group_key.last_notification_date != 0 && final_group_key < last_group_key;
-  } else {
-    was_updated = is_updated = group_key.last_notification_date != 0 && !(last_group_key < group_key);
-  }
-
-  if (!was_updated) {
-    CHECK(!is_updated);
-    if (final_group_key.last_notification_date == 0 && group.total_count == 0) {
-      // send update about empty invisible group anyway
-      add_update_notification_group(td_api::make_object<td_api::updateNotificationGroup>(
-          group_key.group_id.get(), get_notification_group_type_object(group.type),
-          td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup 6"), 0, 0, 0,
-          vector<td_api::object_ptr<td_api::notification>>(), vector<int32>()));
-    } else {
-      VLOG(notifications) << "There is no need to send updateNotificationGroup about " << group_key.group_id;
-    }
-  } else {
-    if (is_updated) {
-      // group is still visible
-      add_update_notification_group(td_api::make_object<td_api::updateNotificationGroup>(
-          group_key.group_id.get(), get_notification_group_type_object(group.type),
-          td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup 7"), 0, 0,
-          group.total_count, std::move(added_notifications), std::move(removed_notification_ids)));
-    } else {
-      // group needs to be removed
-      send_remove_group_update(group_key, group, std::move(removed_notification_ids));
-      if (last_group_key.last_notification_date != 0) {
-        // need to add new last notification group
-        send_add_group_update(last_group_key, groups_[last_group_key], "on_notifications_removed");
-      }
-    }
-  }
-
-  if (is_position_changed) {
-    add_group(std::move(final_group_key), std::move(group), "on_notifications_removed");
-
-    last_group_key = get_last_updated_group_key();
-  } else {
-    CHECK(group_it->first.last_notification_date == 0 || !group.notifications.empty());
-    group_it->second = std::move(group);
-  }
-
-  if (force_update) {
-    force_flush_pending_updates(group_key.group_id, "on_notifications_removed");
-  }
-
-  if (last_loaded_notification_group_key_ < last_group_key) {
-    auto limit = td::max(static_cast<int32>(max_notification_group_count_), static_cast<int32>(10)) / 2;
-    load_message_notification_groups_from_database(limit, true);
-  }
-}
-
-void NotificationManager::remove_added_notifications_from_pending_updates(
-    NotificationGroupId group_id,
-    const std::function<bool(const td_api::object_ptr<td_api::notification> &notification)> &is_removed) {
-  auto it = pending_updates_.find(group_id.get());
-  if (it == pending_updates_.end()) {
-    return;
-  }
-
-  FlatHashSet<int32> removed_notification_ids;
-  for (auto &update : it->second) {
-    if (update == nullptr) {
-      continue;
-    }
-    if (update->get_id() == td_api::updateNotificationGroup::ID) {
-      auto update_ptr = static_cast<td_api::updateNotificationGroup *>(update.get());
-      if (!removed_notification_ids.empty() && !update_ptr->removed_notification_ids_.empty()) {
-        td::remove_if(update_ptr->removed_notification_ids_, [&removed_notification_ids](auto &notification_id) {
-          return removed_notification_ids.count(notification_id) == 1;
-        });
-      }
-      for (auto &notification : update_ptr->added_notifications_) {
-        if (is_removed(notification)) {
-          CHECK(notification->id_ != 0);
-          removed_notification_ids.insert(notification->id_);
-          VLOG(notifications) << "Remove " << NotificationId(notification->id_) << " in " << group_id;
-          notification = nullptr;
-        }
-      }
-      td::remove_if(update_ptr->added_notifications_, [](auto &notification) { return notification == nullptr; });
-    } else {
-      CHECK(update->get_id() == td_api::updateNotification::ID);
-      auto update_ptr = static_cast<td_api::updateNotification *>(update.get());
-      if (is_removed(update_ptr->notification_)) {
-        CHECK(update_ptr->notification_->id_ != 0);
-        removed_notification_ids.insert(update_ptr->notification_->id_);
-        VLOG(notifications) << "Remove " << NotificationId(update_ptr->notification_->id_) << " in " << group_id;
-        update = nullptr;
-      }
-    }
-  }
-}
-
-void NotificationManager::remove_notification(NotificationGroupId group_id, NotificationId notification_id,
-                                              bool is_permanent, bool force_update, Promise<Unit> &&promise,
-                                              const char *source) {
-  if (!group_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Notification group identifier is invalid"));
-  }
-  if (!notification_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Notification identifier is invalid"));
-  }
-
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return promise.set_value(Unit());
-  }
-
-  VLOG(notifications) << "Remove " << notification_id << " from " << group_id << " with is_permanent = " << is_permanent
-                      << ", force_update = " << force_update << " from " << source;
-
-  auto group_it = get_group_force(group_id);
-  if (group_it == groups_.end()) {
-    return promise.set_value(Unit());
-  }
-
-  if (!is_permanent) {
-    switch (group_it->second.type) {
-      case NotificationGroupType::Messages:
-      case NotificationGroupType::Mentions:
-      case NotificationGroupType::SecretChat:
-        td_->messages_manager_->remove_message_notification(group_it->first.dialog_id, group_id, notification_id);
-        break;
-      case NotificationGroupType::Calls:
-        // nothing to do
-        break;
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-
-  for (auto it = group_it->second.pending_notifications.begin(); it != group_it->second.pending_notifications.end();
-       ++it) {
-    if (it->notification_id == notification_id) {
-      // notification is still pending, just delete it
-      on_notification_removed(notification_id);
-      group_it->second.pending_notifications.erase(it);
-      if (group_it->second.pending_notifications.empty()) {
-        group_it->second.pending_notifications_flush_time = 0;
-        if (!G()->close_flag()) {
-          flush_pending_notifications_timeout_.cancel_timeout(group_id.get(), "remove_notification");
-        }
-        on_delayed_notification_update_count_changed(-1, group_id.get(), "remove_notification");
-      }
-      return promise.set_value(Unit());
-    }
-  }
-
-  bool is_found = false;
-  auto old_group_size = group_it->second.notifications.size();
-  size_t notification_pos = old_group_size;
-  for (size_t pos = 0; pos < notification_pos; pos++) {
-    if (group_it->second.notifications[pos].notification_id == notification_id) {
-      on_notification_removed(notification_id);
-      notification_pos = pos;
-      is_found = true;
-    }
-  }
-
-  bool have_all_notifications = !is_partial_notification_group_type(group_it->second.type);
-  bool is_total_count_changed = false;
-  if ((!have_all_notifications && is_permanent) || (have_all_notifications && is_found)) {
-    if (group_it->second.total_count == 0) {
-      LOG(ERROR) << "Total notification count became negative in " << group_it->second << " after removing "
-                 << notification_id << " with is_permanent = " << is_permanent << ", is_found = " << is_found
-                 << ", force_update = " << force_update << " from " << source;
-    } else {
-      group_it->second.total_count--;
-      is_total_count_changed = true;
-    }
-  }
-  if (is_found) {
-    group_it->second.notifications.erase(group_it->second.notifications.begin() + notification_pos);
-  }
-
-  vector<td_api::object_ptr<td_api::notification>> added_notifications;
-  vector<int32> removed_notification_ids;
-  CHECK(max_notification_group_size_ > 0);
-  if (is_found && notification_pos + max_notification_group_size_ >= old_group_size) {
-    removed_notification_ids.push_back(notification_id.get());
-    if (old_group_size >= max_notification_group_size_ + 1) {
-      added_notifications.push_back(
-          get_notification_object(td_, group_it->first.dialog_id,
-                                  group_it->second.notifications[old_group_size - max_notification_group_size_ - 1]));
-      if (added_notifications.back()->type_ == nullptr) {
-        added_notifications.pop_back();
-      }
-    }
-    if (added_notifications.empty() && max_notification_group_size_ > group_it->second.notifications.size()) {
-      load_notifications_from_database(group_it->first, group_it->second, keep_notification_group_size_);
-    }
-  }
-
-  if (is_total_count_changed || !removed_notification_ids.empty()) {
-    on_notifications_removed(std::move(group_it), std::move(added_notifications), std::move(removed_notification_ids),
-                             force_update);
-  }
-
-  remove_added_notifications_from_pending_updates(
-      group_id, [notification_id](const td_api::object_ptr<td_api::notification> &notification) {
-        return notification->id_ == notification_id.get();
-      });
-
-  promise.set_value(Unit());
-}
-
-void NotificationManager::remove_temporary_notification_by_object_id(NotificationGroupId group_id,
-                                                                     NotificationObjectId object_id, bool force_update,
-                                                                     const char *source) {
-  if (!group_id.is_valid()) {
-    return;
-  }
-
-  VLOG(notifications) << "Remove notification for " << object_id << " in " << group_id << " from " << source;
-  CHECK(object_id.is_valid());
-
-  auto group_it = get_group(group_id);
-  if (group_it == groups_.end()) {
-    return;
-  }
-
-  auto remove_notification_by_object_id = [&](auto &notifications) {
-    for (auto &notification : notifications) {
-      if (notification.type->get_object_id() == object_id) {
-        for (auto file_id : notification.type->get_file_ids(td_)) {
-          this->td_->file_manager_->delete_file(file_id, Promise<>(), "remove_temporary_notification_by_object_id");
-        }
-        return this->remove_notification(group_id, notification.notification_id, true, force_update, Auto(),
-                                         "remove_temporary_notification_by_object_id");
-      }
-    }
-  };
-
-  remove_notification_by_object_id(group_it->second.pending_notifications);
-  remove_notification_by_object_id(group_it->second.notifications);
-}
-
-void NotificationManager::remove_notification_group(NotificationGroupId group_id, NotificationId max_notification_id,
-                                                    NotificationObjectId max_object_id, int32 new_total_count,
-                                                    bool force_update, Promise<Unit> &&promise) {
-  if (!group_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Group identifier is invalid"));
-  }
-  if (!max_notification_id.is_valid() && !max_object_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Notification identifier is invalid"));
-  }
-
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return promise.set_value(Unit());
-  }
-
-  if (new_total_count == 0) {
-    remove_temporary_notifications(group_id, "remove_notification_group");
-  }
-
-  VLOG(notifications) << "Remove " << group_id << " up to " << max_notification_id << " or " << max_object_id
-                      << " with new_total_count = " << new_total_count << " and force_update = " << force_update;
-
-  auto group_it = get_group_force(group_id);
-  if (group_it == groups_.end()) {
-    VLOG(notifications) << "Can't find " << group_id;
-    return promise.set_value(Unit());
-  }
-
-  if (max_notification_id.is_valid()) {
-    if (max_notification_id.get() > current_notification_id_.get()) {
-      max_notification_id = current_notification_id_;
-    }
-    switch (group_it->second.type) {
-      case NotificationGroupType::Messages:
-      case NotificationGroupType::Mentions:
-      case NotificationGroupType::SecretChat:
-        td_->messages_manager_->remove_message_notifications(
-            group_it->first.dialog_id, group_id, max_notification_id,
-            MessageId(get_last_object_id_by_notification_id(group_it->second, max_notification_id).get()));
-        break;
-      case NotificationGroupType::Calls:
-        // nothing to do
-        break;
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-
-  auto pending_delete_end = group_it->second.pending_notifications.begin();
-  for (auto it = group_it->second.pending_notifications.begin(); it != group_it->second.pending_notifications.end();
-       ++it) {
-    if (it->notification_id.get() <= max_notification_id.get() ||
-        (max_object_id.is_valid() && it->type->get_object_id() <= max_object_id)) {
-      pending_delete_end = it + 1;
-      on_notification_removed(it->notification_id);
-    }
-  }
-  if (pending_delete_end != group_it->second.pending_notifications.begin()) {
-    group_it->second.pending_notifications.erase(group_it->second.pending_notifications.begin(), pending_delete_end);
-    if (group_it->second.pending_notifications.empty()) {
-      group_it->second.pending_notifications_flush_time = 0;
-      if (!G()->close_flag()) {
-        flush_pending_notifications_timeout_.cancel_timeout(group_id.get(), "remove_notification_group");
-      }
-      on_delayed_notification_update_count_changed(-1, group_id.get(), "remove_notification_group");
-    }
-  }
-  if (new_total_count != -1) {
-    new_total_count += get_temporary_notification_total_count(group_it->second);
-    new_total_count -= static_cast<int32>(group_it->second.pending_notifications.size());
-    if (new_total_count < 0) {
-      LOG(ERROR) << "Have wrong new_total_count " << new_total_count << " + "
-                 << group_it->second.pending_notifications.size();
-    }
-  }
-
-  auto old_group_size = group_it->second.notifications.size();
-  auto notification_delete_end = old_group_size;
-  for (size_t pos = 0; pos < notification_delete_end; pos++) {
-    auto &notification = group_it->second.notifications[pos];
-    if (notification.notification_id.get() > max_notification_id.get() &&
-        (!max_object_id.is_valid() || notification.type->get_object_id() > max_object_id)) {
-      notification_delete_end = pos;
-    } else {
-      on_notification_removed(notification.notification_id);
-    }
-  }
-
-  bool is_found = notification_delete_end != 0;
-
-  vector<int32> removed_notification_ids;
-  if (is_found && notification_delete_end + max_notification_group_size_ > old_group_size) {
-    for (size_t i = old_group_size >= max_notification_group_size_ ? old_group_size - max_notification_group_size_ : 0;
-         i < notification_delete_end; i++) {
-      removed_notification_ids.push_back(group_it->second.notifications[i].notification_id.get());
-    }
-  }
-
-  VLOG(notifications) << "Need to delete " << notification_delete_end << " from "
-                      << group_it->second.notifications.size() << " notifications";
-  if (is_found) {
-    group_it->second.notifications.erase(group_it->second.notifications.begin(),
-                                         group_it->second.notifications.begin() + notification_delete_end);
-  }
-  if (!is_partial_notification_group_type(group_it->second.type)) {
-    new_total_count = static_cast<int32>(group_it->second.notifications.size());
-  }
-  if (group_it->second.total_count == new_total_count) {
-    new_total_count = -1;
-  }
-  if (new_total_count != -1) {
-    group_it->second.total_count = new_total_count;
-  }
-
-  if (new_total_count != -1 || !removed_notification_ids.empty()) {
-    on_notifications_removed(std::move(group_it), vector<td_api::object_ptr<td_api::notification>>(),
-                             std::move(removed_notification_ids), force_update);
-  } else {
-    VLOG(notifications) << "Have new_total_count = " << new_total_count << ", " << removed_notification_ids.size()
-                        << " removed notifications and force_update = " << force_update;
-    if (force_update) {
-      force_flush_pending_updates(group_id, "remove_notification_group");
-    }
-  }
-
-  if (max_notification_id.is_valid()) {
-    remove_added_notifications_from_pending_updates(
-        group_id, [max_notification_id](const td_api::object_ptr<td_api::notification> &notification) {
-          return notification->id_ <= max_notification_id.get();
-        });
-  } else {
-    remove_added_notifications_from_pending_updates(
-        group_id, [max_id = max_object_id.get()](const td_api::object_ptr<td_api::notification> &notification) {
-          const auto *type = notification->type_.get();
-          switch (type->get_id()) {
-            case td_api::notificationTypeNewMessage::ID:
-              return static_cast<const td_api::notificationTypeNewMessage *>(type)->message_->id_ <= max_id;
-            case td_api::notificationTypeNewPushMessage::ID:
-              return static_cast<const td_api::notificationTypeNewPushMessage *>(type)->message_id_ <= max_id;
-            default:
-              return false;
-          }
-        });
-  }
-
-  promise.set_value(Unit());
-}
-
-void NotificationManager::remove_temporary_notifications(NotificationGroupId group_id, const char *source) {
-  CHECK(group_id.is_valid());
-
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return;
-  }
-
-  auto group_it = get_group(group_id);
-  if (group_it == groups_.end()) {
-    return;
-  }
-
-  if (get_temporary_notification_total_count(group_it->second) == 0) {
-    return;
-  }
-
-  VLOG(notifications) << "Remove temporary notifications in " << group_id << " from " << source;
-
-  auto &group = group_it->second;
-  while (!group.pending_notifications.empty() && group.pending_notifications.back().type->is_temporary()) {
-    VLOG(notifications) << "Remove temporary " << group.pending_notifications.back() << " from " << group_id;
-    // notification is still pending, just delete it
-    on_notification_removed(group.pending_notifications.back().notification_id);
-    group.pending_notifications.pop_back();
-    if (group.pending_notifications.empty()) {
-      group.pending_notifications_flush_time = 0;
-      if (!G()->close_flag()) {
-        flush_pending_notifications_timeout_.cancel_timeout(group_id.get(), "remove_temporary_notifications");
-      }
-      on_delayed_notification_update_count_changed(-1, group_id.get(), "remove_temporary_notifications");
-    }
-  }
-
-  auto old_group_size = group.notifications.size();
-  size_t notification_pos = old_group_size;
-  for (size_t pos = 0; pos < notification_pos; pos++) {
-    if (group.notifications[pos].type->is_temporary()) {
-      notification_pos = pos;
-    }
-  }
-  auto removed_notification_count = narrow_cast<int32>(old_group_size - notification_pos);
-  if (removed_notification_count == 0) {
-    CHECK(get_temporary_notification_total_count(group_it->second) == 0);
-    return;
-  }
-
-  if (group.total_count < removed_notification_count) {
-    LOG(ERROR) << "Total notification count became negative in " << group_id << " after removing "
-               << removed_notification_count << " temporary notificaitions";
-    group.total_count = 0;
-  } else {
-    group.total_count -= removed_notification_count;
-  }
-
-  vector<int32> removed_notification_ids;
-  for (auto i = notification_pos; i < old_group_size; i++) {
-    LOG_CHECK(group.notifications[i].type->is_temporary())
-        << notification_pos << ' ' << i << ' ' << old_group_size << ' ' << removed_notification_count << ' '
-        << group.notifications[i] << ' ' << group << ' ' << group_it->first;
-    VLOG(notifications) << "Remove temporary " << group.notifications[i] << " from " << group_id;
-    auto notification_id = group.notifications[i].notification_id;
-    on_notification_removed(notification_id);
-    if (i + max_notification_group_size_ >= old_group_size) {
-      removed_notification_ids.push_back(notification_id.get());
-    }
-  }
-  group.notifications.erase(group.notifications.begin() + notification_pos, group.notifications.end());
-  CHECK(!removed_notification_ids.empty());
-
-  vector<td_api::object_ptr<td_api::notification>> added_notifications;
-  if (old_group_size >= max_notification_group_size_) {
-    size_t added_notification_count = 0;
-    for (size_t i = min(old_group_size - max_notification_group_size_, notification_pos);
-         i-- > 0 && added_notification_count++ < removed_notification_ids.size();) {
-      added_notifications.push_back(get_notification_object(td_, group_it->first.dialog_id, group.notifications[i]));
-      if (added_notifications.back()->type_ == nullptr) {
-        added_notifications.pop_back();
-      }
-    }
-    if (added_notification_count < removed_notification_ids.size() &&
-        max_notification_group_size_ > group.notifications.size()) {
-      load_notifications_from_database(group_it->first, group, keep_notification_group_size_);
-    }
-    std::reverse(added_notifications.begin(), added_notifications.end());
-  }
-  CHECK(get_temporary_notification_total_count(group_it->second) == 0);
-
-  on_notifications_removed(std::move(group_it), std::move(added_notifications), std::move(removed_notification_ids),
-                           false);
-
-  remove_added_notifications_from_pending_updates(group_id,
-                                                  [](const td_api::object_ptr<td_api::notification> &notification) {
-                                                    const auto *type = notification->type_.get();
-                                                    switch (type->get_id()) {
-                                                      case td_api::notificationTypeNewPushMessage::ID:
-                                                        return true;
-                                                      default:
-                                                        return false;
-                                                    }
-                                                  });
-}
-
-int32 NotificationManager::get_temporary_notification_total_count(const NotificationGroup &group) {
-  int32 result = 0;
-  for (auto &notification : reversed(group.notifications)) {
-    if (!notification.type->is_temporary()) {
-      break;
-    }
-    result++;
-  }
-  for (auto &pending_notification : reversed(group.pending_notifications)) {
-    if (!pending_notification.type->is_temporary()) {
-      break;
-    }
-    result++;
-  }
-  return result;
-}
-
-void NotificationManager::set_notification_total_count(NotificationGroupId group_id, int32 new_total_count) {
-  if (!group_id.is_valid()) {
-    return;
-  }
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return;
-  }
-
-  auto group_it = get_group_force(group_id);
-  if (group_it == groups_.end()) {
-    VLOG(notifications) << "Can't find " << group_id;
-    return;
-  }
-
-  new_total_count += get_temporary_notification_total_count(group_it->second);
-  new_total_count -= static_cast<int32>(group_it->second.pending_notifications.size());
-  if (new_total_count < 0) {
-    LOG(ERROR) << "Have wrong new_total_count " << new_total_count << " after removing "
-               << group_it->second.pending_notifications.size() << " pending notifications";
-    return;
-  }
-  if (new_total_count < static_cast<int32>(group_it->second.notifications.size())) {
-    LOG(ERROR) << "Have wrong new_total_count " << new_total_count << " less than number of known notifications "
-               << group_it->second.notifications.size();
-    return;
-  }
-
-  CHECK(group_it->second.type != NotificationGroupType::Calls);
-  if (group_it->second.total_count == new_total_count) {
-    return;
-  }
-
-  VLOG(notifications) << "Set total_count in " << group_id << " to " << new_total_count;
-  group_it->second.total_count = new_total_count;
-
-  on_notifications_removed(std::move(group_it), vector<td_api::object_ptr<td_api::notification>>(), vector<int32>(),
-                           false);
-}
-
-vector<MessageId> NotificationManager::get_notification_group_message_ids(NotificationGroupId group_id) {
-  CHECK(group_id.is_valid());
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return {};
-  }
-
-  auto group_it = get_group_force(group_id);
-  if (group_it == groups_.end()) {
-    return {};
-  }
-
-  if (group_it->second.type != NotificationGroupType::Mentions &&
-      group_it->second.type != NotificationGroupType::Messages) {
-    return {};
-  }
-
-  vector<MessageId> message_ids;
-  for (auto &notification : group_it->second.notifications) {
-    auto object_id = notification.type->get_object_id();
-    if (object_id.is_valid()) {
-      message_ids.push_back(MessageId(object_id.get()));
-    }
-  }
-  for (auto &notification : group_it->second.pending_notifications) {
-    auto object_id = notification.type->get_object_id();
-    if (object_id.is_valid()) {
-      message_ids.push_back(MessageId(object_id.get()));
-    }
-  }
-
-  return message_ids;
-}
-
-NotificationGroupId NotificationManager::get_call_notification_group_id(DialogId dialog_id) {
-  auto it = dialog_id_to_call_notification_group_id_.find(dialog_id);
-  if (it != dialog_id_to_call_notification_group_id_.end()) {
-    return it->second;
-  }
-  if (!dialog_id.is_valid()) {
-    return {};
-  }
-
-  if (available_call_notification_group_ids_.empty()) {
-    // need to reserve new group_id for calls
-    if (call_notification_group_ids_.size() >= MAX_CALL_NOTIFICATION_GROUPS) {
-      return {};
-    }
-    NotificationGroupId last_group_id;
-    if (!call_notification_group_ids_.empty()) {
-      last_group_id = call_notification_group_ids_.back();
-    }
-    NotificationGroupId next_notification_group_id;
-    do {
-      next_notification_group_id = get_next_notification_group_id();
-      if (!next_notification_group_id.is_valid()) {
-        return {};
-      }
-    } while (last_group_id.get() >= next_notification_group_id.get());  // just in case
-    VLOG(notifications) << "Add call " << next_notification_group_id;
-
-    call_notification_group_ids_.push_back(next_notification_group_id);
-    auto call_notification_group_ids_string = implode(
-        transform(call_notification_group_ids_, [](NotificationGroupId group_id) { return to_string(group_id.get()); }),
-        ',');
-    G()->td_db()->get_binlog_pmc()->set("notification_call_group_ids", call_notification_group_ids_string);
-    available_call_notification_group_ids_.insert(next_notification_group_id);
-  }
-
-  auto available_it = available_call_notification_group_ids_.begin();
-  auto group_id = *available_it;
-  available_call_notification_group_ids_.erase(available_it);
-  dialog_id_to_call_notification_group_id_[dialog_id] = group_id;
-  return group_id;
-}
-
-void NotificationManager::add_call_notification(DialogId dialog_id, CallId call_id) {
-  CHECK(dialog_id.is_valid());
-  CHECK(call_id.is_valid());
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return;
-  }
-
-  auto group_id = get_call_notification_group_id(dialog_id);
-  if (!group_id.is_valid()) {
-    VLOG(notifications) << "Ignore notification about " << call_id << " in " << dialog_id;
-    return;
-  }
-
-  td_->dialog_manager_->force_create_dialog(dialog_id, "add_call_notification");
-
-  auto &active_notifications = active_call_notifications_[dialog_id];
-  if (active_notifications.size() >= MAX_CALL_NOTIFICATIONS) {
-    VLOG(notifications) << "Ignore notification about " << call_id << " in " << dialog_id << " and " << group_id;
-    return;
-  }
-
-  auto notification_id = get_next_notification_id();
-  if (!notification_id.is_valid()) {
-    return;
-  }
-  active_notifications.push_back(ActiveCallNotification{call_id, notification_id});
-
-  add_notification(group_id, NotificationGroupType::Calls, dialog_id, G()->unix_time() + 120, dialog_id, false, -1, 0,
-                   notification_id, create_new_call_notification(call_id), "add_call_notification");
-}
-
-void NotificationManager::remove_call_notification(DialogId dialog_id, CallId call_id) {
-  CHECK(dialog_id.is_valid());
-  CHECK(call_id.is_valid());
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    return;
-  }
-
-  auto group_id_it = dialog_id_to_call_notification_group_id_.find(dialog_id);
-  if (group_id_it == dialog_id_to_call_notification_group_id_.end()) {
-    VLOG(notifications) << "Ignore removing notification about " << call_id << " in " << dialog_id;
-    return;
-  }
-  auto group_id = group_id_it->second;
-  CHECK(group_id.is_valid());
-
-  auto &active_notifications = active_call_notifications_[dialog_id];
-  for (auto it = active_notifications.begin(); it != active_notifications.end(); ++it) {
-    if (it->call_id == call_id) {
-      remove_notification(group_id, it->notification_id, true, true, Promise<Unit>(), "remove_call_notification");
-      active_notifications.erase(it);
-      if (active_notifications.empty()) {
-        VLOG(notifications) << "Reuse call " << group_id;
-        active_call_notifications_.erase(dialog_id);
-        available_call_notification_group_ids_.insert(group_id);
-        dialog_id_to_call_notification_group_id_.erase(dialog_id);
-
-        if (!G()->close_flag()) {
-          flush_pending_notifications_timeout_.cancel_timeout(group_id.get(), "remove_call_notification");
-        }
-        flush_pending_notifications(group_id);
-        force_flush_pending_updates(group_id, "reuse call group_id");
-
-        auto group_it = get_group(group_id);
-        LOG_CHECK(group_it->first.dialog_id == dialog_id)
-            << group_id << ' ' << dialog_id << ' ' << group_it->first << ' ' << group_it->second;
-        CHECK(group_it->first.last_notification_date == 0);
-        CHECK(group_it->second.total_count == 0);
-        CHECK(group_it->second.notifications.empty());
-        CHECK(group_it->second.pending_notifications.empty());
-        CHECK(group_it->second.type == NotificationGroupType::Calls);
-        CHECK(!group_it->second.is_being_loaded_from_database);
-        CHECK(pending_updates_.count(group_id.get()) == 0);
-        delete_group(std::move(group_it));
-      }
-      return;
-    }
-  }
-
-  VLOG(notifications) << "Failed to find " << call_id << " in " << dialog_id << " and " << group_id;
-}
-
-void NotificationManager::on_notification_group_count_max_changed(bool send_updates) {
-  if (is_disabled()) {
-    return;
-  }
-
-  auto new_max_notification_group_count = narrow_cast<int32>(
-      td_->option_manager_->get_option_integer("notification_group_count_max", DEFAULT_GROUP_COUNT_MAX));
-  CHECK(MIN_NOTIFICATION_GROUP_COUNT_MAX <= new_max_notification_group_count &&
-        new_max_notification_group_count <= MAX_NOTIFICATION_GROUP_COUNT_MAX);
-
-  auto new_max_notification_group_count_size_t = static_cast<size_t>(new_max_notification_group_count);
-  if (new_max_notification_group_count_size_t == max_notification_group_count_) {
-    return;
-  }
-
-  VLOG(notifications) << "Change max notification group count from " << max_notification_group_count_ << " to "
-                      << new_max_notification_group_count;
-
-  bool is_increased = new_max_notification_group_count_size_t > max_notification_group_count_;
-  if (send_updates) {
-    flush_all_notifications();
-
-    size_t cur_pos = 0;
-    size_t min_group_count = min(new_max_notification_group_count_size_t, max_notification_group_count_);
-    size_t max_group_count = max(new_max_notification_group_count_size_t, max_notification_group_count_);
-    for (auto it = groups_.begin(); it != groups_.end() && cur_pos < max_group_count; ++it, cur_pos++) {
-      if (cur_pos < min_group_count) {
-        continue;
-      }
-
-      auto &group_key = it->first;
-      auto &group = it->second;
-      CHECK(group.pending_notifications.empty());
-      CHECK(pending_updates_.count(group_key.group_id.get()) == 0);
-
-      if (group_key.last_notification_date == 0) {
-        break;
-      }
-
-      if (is_increased) {
-        send_add_group_update(group_key, group, "on_notification_group_count_max_changed");
-      } else {
-        send_remove_group_update(group_key, group, vector<int32>());
-      }
-    }
-
-    flush_all_pending_updates(true, "on_notification_group_size_max_changed end");
-
-    if (new_max_notification_group_count == 0) {
-      last_loaded_notification_group_key_ = NotificationGroupKey();
-      last_loaded_notification_group_key_.last_notification_date = std::numeric_limits<int32>::max();
-      CHECK(pending_updates_.empty());
-      groups_.clear();
-      group_keys_.clear();
-    }
-  }
-
-  max_notification_group_count_ = new_max_notification_group_count_size_t;
-  if (is_increased && last_loaded_notification_group_key_ < get_last_updated_group_key()) {
-    auto limit = td::max(new_max_notification_group_count, static_cast<int32>(5));
-    load_message_notification_groups_from_database(limit, true);
-  }
-}
-
-void NotificationManager::on_notification_group_size_max_changed() {
-  if (is_disabled()) {
-    return;
-  }
-
-  auto new_max_notification_group_size = narrow_cast<int32>(
-      td_->option_manager_->get_option_integer("notification_group_size_max", DEFAULT_GROUP_SIZE_MAX));
-  CHECK(MIN_NOTIFICATION_GROUP_SIZE_MAX <= new_max_notification_group_size &&
-        new_max_notification_group_size <= MAX_NOTIFICATION_GROUP_SIZE_MAX);
-
-  auto new_max_notification_group_size_size_t = static_cast<size_t>(new_max_notification_group_size);
-  if (new_max_notification_group_size_size_t == max_notification_group_size_) {
-    return;
-  }
-
-  auto new_keep_notification_group_size =
-      new_max_notification_group_size_size_t +
-      clamp(new_max_notification_group_size_size_t, EXTRA_GROUP_SIZE / 2, EXTRA_GROUP_SIZE);
-
-  VLOG(notifications) << "Change max notification group size from " << max_notification_group_size_ << " to "
-                      << new_max_notification_group_size;
-
-  if (max_notification_group_size_ != 0) {
-    flush_all_notifications();
-
-    size_t left = max_notification_group_count_;
-    for (auto it = groups_.begin(); it != groups_.end() && left > 0; ++it, left--) {
-      auto &group_key = it->first;
-      auto &group = it->second;
-      CHECK(group.pending_notifications.empty());
-      CHECK(pending_updates_.count(group_key.group_id.get()) == 0);
-
-      if (group_key.last_notification_date == 0) {
-        break;
-      }
-
-      vector<td_api::object_ptr<td_api::notification>> added_notifications;
-      vector<int32> removed_notification_ids;
-      auto notification_count = group.notifications.size();
-      if (new_max_notification_group_size_size_t < max_notification_group_size_) {
-        if (notification_count <= new_max_notification_group_size_size_t) {
-          VLOG(notifications) << "There is no need to update " << group_key.group_id;
-          continue;
-        }
-        for (size_t i = notification_count - min(notification_count, max_notification_group_size_);
-             i < notification_count - new_max_notification_group_size_size_t; i++) {
-          removed_notification_ids.push_back(group.notifications[i].notification_id.get());
-        }
-        CHECK(!removed_notification_ids.empty());
-      } else {
-        if (new_max_notification_group_size_size_t > notification_count) {
-          load_notifications_from_database(group_key, group, new_keep_notification_group_size);
-        }
-        if (notification_count <= max_notification_group_size_) {
-          VLOG(notifications) << "There is no need to update " << group_key.group_id;
-          continue;
-        }
-        for (size_t i = notification_count - min(notification_count, new_max_notification_group_size_size_t);
-             i < notification_count - max_notification_group_size_; i++) {
-          added_notifications.push_back(get_notification_object(td_, group_key.dialog_id, group.notifications[i]));
-          if (added_notifications.back()->type_ == nullptr) {
-            added_notifications.pop_back();
-          }
-        }
-        if (added_notifications.empty()) {
-          continue;
-        }
-      }
-      if (!is_destroyed_) {
-        auto update = td_api::make_object<td_api::updateNotificationGroup>(
-            group_key.group_id.get(), get_notification_group_type_object(group.type),
-            td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup 8"),
-            td_->dialog_manager_->get_chat_id_object(group_key.dialog_id, "updateNotificationGroup 9"), 0,
-            group.total_count, std::move(added_notifications), std::move(removed_notification_ids));
-        VLOG(notifications) << "Send " << as_notification_update(update.get());
-        send_closure(G()->td(), &Td::send_update, std::move(update));
-      }
-    }
-  }
-
-  max_notification_group_size_ = new_max_notification_group_size_size_t;
-  keep_notification_group_size_ = new_keep_notification_group_size;
-}
-
-void NotificationManager::on_online_cloud_timeout_changed() {
-  if (is_disabled()) {
-    return;
-  }
-
-  online_cloud_timeout_ms_ = narrow_cast<int32>(
-      td_->option_manager_->get_option_integer("online_cloud_timeout_ms", DEFAULT_ONLINE_CLOUD_TIMEOUT_MS));
-  VLOG(notifications) << "Set online_cloud_timeout_ms to " << online_cloud_timeout_ms_;
-}
-
-void NotificationManager::on_notification_cloud_delay_changed() {
-  if (is_disabled()) {
-    return;
-  }
-
-  notification_cloud_delay_ms_ = narrow_cast<int32>(
-      td_->option_manager_->get_option_integer("notification_cloud_delay_ms", DEFAULT_ONLINE_CLOUD_DELAY_MS));
-  VLOG(notifications) << "Set notification_cloud_delay_ms to " << notification_cloud_delay_ms_;
-}
-
-void NotificationManager::on_notification_default_delay_changed() {
-  if (is_disabled()) {
-    return;
-  }
-
-  notification_default_delay_ms_ = narrow_cast<int32>(
-      td_->option_manager_->get_option_integer("notification_default_delay_ms", DEFAULT_DEFAULT_DELAY_MS));
-  VLOG(notifications) << "Set notification_default_delay_ms to " << notification_default_delay_ms_;
-}
-
-void NotificationManager::on_disable_contact_registered_notifications_changed() {
-  if (is_disabled()) {
-    return;
-  }
-
-  auto is_disabled = td_->option_manager_->get_option_boolean("disable_contact_registered_notifications");
-  if (is_disabled == disable_contact_registered_notifications_) {
-    return;
-  }
-
-  disable_contact_registered_notifications_ = is_disabled;
-  if (contact_registered_notifications_sync_state_ == SyncState::Completed) {
-    run_contact_registered_notifications_sync();
-  }
-}
-
-void NotificationManager::on_get_disable_contact_registered_notifications(bool is_disabled, Promise<Unit> &&promise) {
-  if (G()->close_flag() || disable_contact_registered_notifications_ == is_disabled) {
-    return promise.set_value(Unit());
-  }
-  disable_contact_registered_notifications_ = is_disabled;
-
-  if (is_disabled) {
-    td_->option_manager_->set_option_boolean("disable_contact_registered_notifications", is_disabled);
-  } else {
-    td_->option_manager_->set_option_empty("disable_contact_registered_notifications");
-  }
-  promise.set_value(Unit());
-}
-
-void NotificationManager::set_contact_registered_notifications_sync_state(SyncState new_state) {
-  if (is_disabled()) {
-    return;
-  }
-
-  contact_registered_notifications_sync_state_ = new_state;
-  string value;
-  value += static_cast<char>(static_cast<int32>(new_state) + '0');
-  value += static_cast<char>(static_cast<int32>(disable_contact_registered_notifications_) + '0');
-  G()->td_db()->get_binlog_pmc()->set(get_is_contact_registered_notifications_synchronized_key(), value);
-}
-
-void NotificationManager::run_contact_registered_notifications_sync() {
-  if (is_disabled()) {
-    return;
-  }
-
-  auto is_disabled = disable_contact_registered_notifications_;
-  if (contact_registered_notifications_sync_state_ == SyncState::NotSynced && !is_disabled) {
-    set_contact_registered_notifications_sync_state(SyncState::Completed);
-    return;
-  }
-  if (contact_registered_notifications_sync_state_ != SyncState::Pending) {
-    set_contact_registered_notifications_sync_state(SyncState::Pending);
-  }
-
-  VLOG(notifications) << "Send SetContactSignUpNotificationQuery with " << is_disabled;
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), is_disabled](Result<Unit> result) {
-    send_closure(actor_id, &NotificationManager::on_contact_registered_notifications_sync, is_disabled,
-                 std::move(result));
-  });
-  td_->create_handler<SetContactSignUpNotificationQuery>(std::move(promise))->send(is_disabled);
-}
-
-void NotificationManager::on_contact_registered_notifications_sync(bool is_disabled, Result<Unit> result) {
-  CHECK(contact_registered_notifications_sync_state_ == SyncState::Pending);
-  if (is_disabled != disable_contact_registered_notifications_) {
-    return run_contact_registered_notifications_sync();
-  }
-  if (result.is_ok()) {
-    // everything is synchronized
-    set_contact_registered_notifications_sync_state(SyncState::Completed);
-  } else {
-    // let's resend the query forever
-    run_contact_registered_notifications_sync();
-  }
-}
-
-void NotificationManager::get_disable_contact_registered_notifications(Promise<Unit> &&promise) {
-  if (is_disabled()) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](Result<bool> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &NotificationManager::on_get_disable_contact_registered_notifications, result.ok(),
-                       std::move(promise));
-        }
-      });
-  td_->create_handler<GetContactSignUpNotificationQuery>(std::move(query_promise))->send();
-}
-
-void NotificationManager::process_push_notification(string payload, Promise<Unit> &&user_promise) {
-  auto promise = PromiseCreator::lambda([user_promise = std::move(user_promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      if (result.error().code() == 200) {
-        user_promise.set_value(Unit());
-      } else {
-        user_promise.set_error(result.move_as_error());
-      }
-    } else {
-      create_actor<SleepActor>("FinishProcessPushNotificationActor", 0.01, std::move(user_promise)).release();
-    }
-  });
-
-  if (is_disabled() || payload == "{}") {
-    return promise.set_error(Status::Error(200, "Immediate success"));
-  }
-
-  auto r_receiver_id = get_push_receiver_id(payload);
-  if (r_receiver_id.is_error()) {
-    VLOG(notifications) << "Failed to get push notification receiver from \"" << format::escaped(payload)
-                        << "\":" << r_receiver_id.is_error();
-    return promise.set_error(r_receiver_id.move_as_error());
-  }
-
-  auto receiver_id = r_receiver_id.move_as_ok();
-  auto encryption_keys = td_->device_token_manager_.get_actor_unsafe()->get_encryption_keys();
-  VLOG(notifications) << "Process push notification \"" << format::escaped(payload)
-                      << "\" with receiver_id = " << receiver_id << " and " << encryption_keys.size()
-                      << " encryption keys";
-  bool was_encrypted = false;
-  for (auto &key : encryption_keys) {
-    VLOG(notifications) << "Have key " << key.first;
-    // VLOG(notifications) << "Have key " << key.first << ": \"" << format::escaped(key.second) << '"';
-    if (key.first == receiver_id) {
-      if (!key.second.empty()) {
-        auto r_payload = decrypt_push(key.first, key.second.str(), std::move(payload));
-        if (r_payload.is_error()) {
-          LOG(ERROR) << "Failed to decrypt push: " << r_payload.error();
-          return promise.set_error(Status::Error(400, "Failed to decrypt push payload"));
-        }
-        payload = r_payload.move_as_ok();
-        was_encrypted = true;
-      }
-      receiver_id = 0;
-      break;
-    }
-  }
-
-  if (!td_->online_manager_->is_online()) {
-    // reset online flag to false to immediately check all connections aliveness
-    send_closure(G()->state_manager(), &StateManager::on_online, false);
-  }
-
-  if (receiver_id == 0 || receiver_id == td_->option_manager_->get_option_integer("my_id")) {
-    auto status = process_push_notification_payload(payload, was_encrypted, promise);
-    if (status.is_error()) {
-      if (status.code() == 406 || status.code() == 200) {
-        return promise.set_error(std::move(status));
-      }
-
-      LOG(ERROR) << "Receive error " << status << ", while parsing push payload " << payload;
-      return promise.set_error(Status::Error(400, status.message()));
-    }
-    // promise will be set after updateNotificationGroup is sent to the client
-    return;
-  }
-
-  VLOG(notifications) << "Failed to process push notification";
-  promise.set_error(Status::Error(200, "Immediate success"));
-}
-
-string NotificationManager::convert_loc_key(const string &loc_key) {
-  static const FlatHashMap<Slice, Slice, SliceHash> loc_keys = {
-      {"CHAT_ADD_MEMBER", "MESSAGE_CHAT_ADD_MEMBERS"},
-      {"CHAT_ADD_YOU", "MESSAGE_CHAT_ADD_MEMBERS_YOU"},
-      {"CHAT_CREATED", "MESSAGE_BASIC_GROUP_CHAT_CREATE"},
-      {"CHAT_DELETE_MEMBER", "MESSAGE_CHAT_DELETE_MEMBER"},
-      {"CHAT_DELETE_YOU", "MESSAGE_CHAT_DELETE_MEMBER_YOU"},
-      {"CHAT_JOINED", "MESSAGE_CHAT_JOIN_BY_LINK"},
-      {"CHAT_LEFT", "MESSAGE_CHAT_DELETE_MEMBER_LEFT"},
-      {"CHAT_LIVESTREAM_END", "MESSAGE_CHAT_LIVESTREAM_END"},
-      {"CHAT_LIVESTREAM_START", "MESSAGE_CHAT_LIVESTREAM_START"},
-      {"CHAT_PHOTO_EDITED", "MESSAGE_CHAT_CHANGE_PHOTO"},
-      {"CHAT_REQ_JOINED", "MESSAGE_CHAT_JOIN_BY_REQUEST"},
-      {"CHAT_RETURNED", "MESSAGE_CHAT_ADD_MEMBERS_RETURNED"},
-      {"CHAT_TITLE_EDITED", "MESSAGE_CHAT_CHANGE_TITLE"},
-      {"CHAT_VOICECHAT_END", "MESSAGE_CHAT_VOICECHAT_END"},
-      {"CHAT_VOICECHAT_INVITE", "MESSAGE_CHAT_VOICECHAT_INVITE"},
-      {"CHAT_VOICECHAT_INVITE_YOU", "MESSAGE_CHAT_VOICECHAT_INVITE_YOU"},
-      {"CHAT_VOICECHAT_START", "MESSAGE_CHAT_VOICECHAT_START"},
-      {"CONTACT_JOINED", "MESSAGE_CONTACT_REGISTERED"},
-      {"ENCRYPTED_MESSAGE", "MESSAGE"},
-      {"MESSAGES", "MESSAGES"},
-      {"MESSAGE_AUDIO", "MESSAGE_VOICE_NOTE"},
-      {"MESSAGE_CONTACT", "MESSAGE_CONTACT"},
-      {"MESSAGE_DOC", "MESSAGE_DOCUMENT"},
-      {"MESSAGE_DOCS", "MESSAGE_DOCUMENTS"},
-      {"MESSAGE_FWDS", "MESSAGE_FORWARDS"},
-      {"MESSAGE_GAME", "MESSAGE_GAME"},
-      {"MESSAGE_GAME_SCORE", "MESSAGE_GAME_SCORE"},
-      {"MESSAGE_GEO", "MESSAGE_LOCATION"},
-      {"MESSAGE_GEOLIVE", "MESSAGE_LIVE_LOCATION"},
-      {"MESSAGE_GIF", "MESSAGE_ANIMATION"},
-      {"MESSAGE_GIFTCODE", "MESSAGE_GIFTCODE"},
-      {"MESSAGE_GIVEAWAY", "MESSAGE_GIVEAWAY"},
-      {"MESSAGE_GIVEAWAY_STARS", "MESSAGE_GIVEAWAY_STARS"},
-      {"MESSAGE_INVOICE", "MESSAGE_INVOICE"},
-      {"MESSAGE_NOTEXT", "MESSAGE"},
-      {"MESSAGE_NOTHEME", "MESSAGE_CHAT_CHANGE_THEME"},
-      {"MESSAGE_PAID_MEDIA", "MESSAGE_PAID_MEDIA"},
-      {"MESSAGE_PHOTO", "MESSAGE_PHOTO"},
-      {"MESSAGE_PHOTOS", "MESSAGE_PHOTOS"},
-      {"MESSAGE_PHOTO_SECRET", "MESSAGE_SECRET_PHOTO"},
-      {"MESSAGE_PLAYLIST", "MESSAGE_AUDIOS"},
-      {"MESSAGE_POLL", "MESSAGE_POLL"},
-      {"MESSAGE_PROXIMITY", "MESSAGE_PROXIMITY"},
-      {"MESSAGE_QUIZ", "MESSAGE_QUIZ"},
-      {"MESSAGE_RECURRING_PAY", "MESSAGE_RECURRING_PAYMENT"},
-      {"MESSAGE_ROUND", "MESSAGE_VIDEO_NOTE"},
-      {"MESSAGE_SAME_WALLPAPER", "MESSAGE_SAME_WALLPAPER"},
-      {"MESSAGE_SCREENSHOT", "MESSAGE_SCREENSHOT_TAKEN"},
-      {"MESSAGE_STARGIFT", "MESSAGE_STARGIFT"},
-      {"MESSAGE_STARGIFT_UPGRADE", "MESSAGE_STARGIFT_UPGRADE"},
-      {"MESSAGE_STICKER", "MESSAGE_STICKER"},
-      {"MESSAGE_STORY", "MESSAGE_STORY"},
-      {"MESSAGE_STORY_MENTION", "MESSAGE_STORY_MENTION"},
-      {"MESSAGE_SUGGEST_USERPIC", "MESSAGE_SUGGEST_PHOTO"},
-      {"MESSAGE_TEXT", "MESSAGE_TEXT"},
-      {"MESSAGE_THEME", "MESSAGE_CHAT_CHANGE_THEME"},
-      {"MESSAGE_UNIQUE_STARGIFT", "MESSAGE_STARGIFT_TRANSFER"},
-      {"MESSAGE_VIDEO", "MESSAGE_VIDEO"},
-      {"MESSAGE_VIDEOS", "MESSAGE_VIDEOS"},
-      {"MESSAGE_VIDEO_SECRET", "MESSAGE_SECRET_VIDEO"},
-      {"MESSAGE_WALLPAPER", "MESSAGE_WALLPAPER"},
-      {"PINNED_AUDIO", "PINNED_MESSAGE_VOICE_NOTE"},
-      {"PINNED_CONTACT", "PINNED_MESSAGE_CONTACT"},
-      {"PINNED_DOC", "PINNED_MESSAGE_DOCUMENT"},
-      {"PINNED_GAME", "PINNED_MESSAGE_GAME"},
-      {"PINNED_GAME_SCORE", "PINNED_MESSAGE_GAME_SCORE"},
-      {"PINNED_GEO", "PINNED_MESSAGE_LOCATION"},
-      {"PINNED_GEOLIVE", "PINNED_MESSAGE_LIVE_LOCATION"},
-      {"PINNED_GIF", "PINNED_MESSAGE_ANIMATION"},
-      {"PINNED_GIVEAWAY", "PINNED_MESSAGE_GIVEAWAY"},
-      {"PINNED_GIVEAWAY_STARS", "PINNED_MESSAGE_GIVEAWAY_STARS"},
-      {"PINNED_INVOICE", "PINNED_MESSAGE_INVOICE"},
-      {"PINNED_NOTEXT", "PINNED_MESSAGE"},
-      {"PINNED_PAID_MEDIA", "PINNED_MESSAGE_PAID_MEDIA"},
-      {"PINNED_PHOTO", "PINNED_MESSAGE_PHOTO"},
-      {"PINNED_POLL", "PINNED_MESSAGE_POLL"},
-      {"PINNED_QUIZ", "PINNED_MESSAGE_QUIZ"},
-      {"PINNED_ROUND", "PINNED_MESSAGE_VIDEO_NOTE"},
-      {"PINNED_STICKER", "PINNED_MESSAGE_STICKER"},
-      {"PINNED_STORY", "PINNED_MESSAGE_STORY"},
-      {"PINNED_TEXT", "PINNED_MESSAGE_TEXT"},
-      {"PINNED_VIDEO", "PINNED_MESSAGE_VIDEO"}};
-  auto it = loc_keys.find(loc_key);
-  if (it != loc_keys.end()) {
-    return it->second.str();
-  }
-  return string();
-}
-
-void NotificationManager::add_push_notification_user(
-    UserId sender_user_id, int64 sender_access_hash, const string &sender_name,
-    telegram_api::object_ptr<telegram_api::UserProfilePhoto> &&sender_photo) {
-  int32 flags = 0;
-  if (sender_access_hash != -1) {
-    // set phone number flag to show that this is a full access hash
-    flags = telegram_api::user::ACCESS_HASH_MASK | telegram_api::user::PHONE_MASK;
-  } else {
-    sender_access_hash = 0;
-  }
-  auto user_name = sender_user_id.get() == 136817688 ? "Channel" : sender_name;
-  auto user = telegram_api::make_object<telegram_api::user>(
-      flags, false, false, false, false, false, false, false, false, false, true /*min*/, false, false, false, false,
-      false, false, false, false, 0, false, false, false, false, false, false, false, sender_user_id.get(),
-      sender_access_hash, user_name, string(), string(), string(), std::move(sender_photo), nullptr, 0, Auto(),
-      string(), string(), nullptr, vector<telegram_api::object_ptr<telegram_api::username>>(), 0, nullptr, nullptr, 0,
-      0, 0);
-  td_->user_manager_->on_get_user(std::move(user), "add_push_notification_user");
-}
-
-Status NotificationManager::parse_push_notification_attach(DialogId dialog_id, string &loc_key, JsonObject &custom,
-                                                           Photo &attached_photo, Document &attached_document) {
-  if (!custom.has_field("attachb64")) {
-    return Status::OK();
-  }
-  TRY_RESULT(attachb64, custom.get_required_string_field("attachb64"));
-  TRY_RESULT(attach, base64url_decode(attachb64));
-
-  TlParser gzip_parser(attach);
-  int32 id = gzip_parser.fetch_int();
-  if (gzip_parser.get_error()) {
-    return Status::Error(PSLICE() << "Failed to parse attach: " << gzip_parser.get_error());
-  }
-  BufferSlice buffer;
-  static constexpr int32 GZIP_PACKED_ID = 812830625;
-  if (id == GZIP_PACKED_ID) {
-    auto packed_data = gzip_parser.template fetch_string<Slice>();
-    gzip_parser.fetch_end();
-    if (gzip_parser.get_error()) {
-      return Status::Error(PSLICE() << "Failed to parse gzip_packed in attach: " << gzip_parser.get_error());
-    }
-    buffer = gzdecode(packed_data);
-    if (buffer.empty()) {
-      return Status::Error("Failed to uncompress attach");
-    }
-  } else {
-    buffer = BufferSlice(attach);
-  }
-
-  TlBufferParser parser(&buffer);
-  auto result = telegram_api::Object::fetch(parser);
-  parser.fetch_end();
-  const char *error = parser.get_error();
-  if (error != nullptr) {
-    LOG(ERROR) << "Can't parse attach: " << Slice(error) << " at " << parser.get_error_pos() << ": "
-               << format::as_hex_dump<4>(Slice(attach));
-    return Status::OK();
-  }
-  switch (result->get_id()) {
-    case telegram_api::photo::ID:
-      if (ends_with(loc_key, "MESSAGE_PHOTO") || ends_with(loc_key, "MESSAGE_TEXT")) {
-        VLOG(notifications) << "Have attached photo";
-        loc_key.resize(loc_key.rfind('_') + 1);
-        loc_key += "PHOTO";
-        attached_photo = get_photo(td_, telegram_api::move_object_as<telegram_api::photo>(result), dialog_id);
-      } else {
-        LOG(ERROR) << "Receive attached photo for " << loc_key;
-      }
-      break;
-    case telegram_api::document::ID: {
-      if (ends_with(loc_key, "MESSAGE_ANIMATION") || ends_with(loc_key, "MESSAGE_AUDIO") ||
-          ends_with(loc_key, "MESSAGE_DOCUMENT") || ends_with(loc_key, "MESSAGE_STICKER") ||
-          ends_with(loc_key, "MESSAGE_VIDEO") || ends_with(loc_key, "MESSAGE_VIDEO_NOTE") ||
-          ends_with(loc_key, "MESSAGE_VOICE_NOTE") || ends_with(loc_key, "MESSAGE_TEXT")) {
-        VLOG(notifications) << "Have attached document";
-        attached_document = td_->documents_manager_->on_get_document(
-            telegram_api::move_object_as<telegram_api::document>(result), dialog_id, false);
-        if (!attached_document.empty()) {
-          if (ends_with(loc_key, "_NOTE")) {
-            loc_key.resize(loc_key.rfind('_'));
-          }
-          loc_key.resize(loc_key.rfind('_') + 1);
-
-          auto type = [attached_document] {
-            switch (attached_document.type) {
-              case Document::Type::Animation:
-                return "ANIMATION";
-              case Document::Type::Audio:
-                return "AUDIO";
-              case Document::Type::General:
-                return "DOCUMENT";
-              case Document::Type::Sticker:
-                return "STICKER";
-              case Document::Type::Video:
-                return "VIDEO";
-              case Document::Type::VideoNote:
-                return "VIDEO_NOTE";
-              case Document::Type::VoiceNote:
-                return "VOICE_NOTE";
-              case Document::Type::Unknown:
-              default:
-                UNREACHABLE();
-                return "UNREACHABLE";
-            }
-          }();
-
-          loc_key += type;
-        }
-      } else {
-        LOG(ERROR) << "Receive attached document for " << loc_key;
-      }
-      break;
-    }
-    default:
-      LOG(ERROR) << "Receive unexpected attached " << to_string(result);
-  }
-  return Status::OK();
-}
-
-Status NotificationManager::process_push_notification_payload(string payload, bool was_encrypted,
-                                                              Promise<Unit> &promise) {
-  VLOG(notifications) << "Process push notification payload " << payload;
-  auto r_json_value = json_decode(payload);
-  if (r_json_value.is_error()) {
-    return Status::Error("Failed to parse payload as JSON object");
-  }
-
-  auto json_value = r_json_value.move_as_ok();
-  if (json_value.type() != JsonValue::Type::Object) {
-    return Status::Error("Expected a JSON object as push payload");
-  }
-
-  auto data = std::move(json_value.get_object());
-  int32 sent_date = G()->unix_time();
-  if (data.has_field("data")) {
-    TRY_RESULT(date, data.get_optional_int_field("date", sent_date));
-    if (sent_date - 28 * 86400 <= date && date <= sent_date + 5) {
-      sent_date = date;
-    }
-    TRY_RESULT(data_data, data.extract_required_field("data", JsonValue::Type::Object));
-    data = std::move(data_data.get_object());
-  }
-
-  TRY_RESULT(loc_key, data.get_required_string_field("loc_key"));
-  if (!clean_input_string(loc_key)) {
-    return Status::Error(PSLICE() << "Receive invalid loc_key " << format::escaped(loc_key));
-  }
-  if (loc_key.empty()) {
-    return Status::Error("Receive empty loc_key");
-  }
-
-  vector<string> loc_args;
-  TRY_RESULT(loc_args_array, data.extract_optional_field("loc_args", JsonValue::Type::Array));
-  if (loc_args_array.type() == JsonValue::Type::Array) {
-    loc_args.reserve(loc_args_array.get_array().size());
-    for (auto &arg : loc_args_array.get_array()) {
-      if (arg.type() != JsonValue::Type::String) {
-        return Status::Error("Expected loc_arg as a String");
-      }
-      auto loc_arg = arg.get_string().str();
-      if (!clean_input_string(loc_arg)) {
-        return Status::Error(PSLICE() << "Receive invalid loc_arg " << format::escaped(loc_arg));
-      }
-      loc_args.push_back(std::move(loc_arg));
-    }
-  }
-
-  JsonObject custom;
-  TRY_RESULT(custom_value, data.extract_optional_field("custom", JsonValue::Type::Object));
-  if (custom_value.type() == JsonValue::Type::Object) {
-    custom = std::move(custom_value.get_object());
-  }
-
-  TRY_RESULT(google_sent_time, data.get_optional_long_field("google.sent_time"));
-  if (google_sent_time > 0) {
-    google_sent_time /= 1000;
-    if (sent_date - 28 * 86400 <= google_sent_time && google_sent_time <= sent_date + 5) {
-      sent_date = narrow_cast<int32>(google_sent_time);
-    }
-  }
-
-  TRY_RESULT(announcement_message_text, data.get_optional_string_field("message"));
-  if (loc_key == "MESSAGE_ANNOUNCEMENT") {
-    if (announcement_message_text.empty()) {
-      return Status::Error("Receive empty announcement message text");
-    }
-    TRY_RESULT(announcement_id, custom.get_optional_int_field("announcement"));
-    if (announcement_id == 0) {
-      return Status::Error(200, "Receive unsupported announcement ID");
-    }
-    auto &date = announcement_id_date_[announcement_id];
-    auto now = G()->unix_time();
-    if (date >= now - ANNOUNCEMENT_ID_CACHE_TIME) {
-      VLOG(notifications) << "Ignore duplicate announcement " << announcement_id;
-      return Status::Error(200, "Immediate success");
-    }
-    date = now;
-
-    auto update = telegram_api::make_object<telegram_api::updateServiceNotification>(
-        telegram_api::updateServiceNotification::INBOX_DATE_MASK, false, false, G()->unix_time(), string(),
-        announcement_message_text, nullptr, vector<telegram_api::object_ptr<telegram_api::MessageEntity>>());
-    send_closure(G()->messages_manager(), &MessagesManager::on_update_service_notification, std::move(update), false,
-                 std::move(promise));
-    save_announcement_ids();
-    return Status::OK();
-  }
-  if (!announcement_message_text.empty()) {
-    LOG(ERROR) << "Have non-empty announcement message text with loc_key = " << loc_key;
-  }
-
-  if (loc_key == "DC_UPDATE") {
-    TRY_RESULT(dc_id, custom.get_required_int_field("dc"));
-    TRY_RESULT(addr, custom.get_required_string_field("addr"));
-    if (!DcId::is_valid(dc_id)) {
-      return Status::Error("Invalid datacenter identifier");
-    }
-    if (!clean_input_string(addr)) {
-      return Status::Error(PSLICE() << "Receive invalid datacenter address " << format::escaped(addr));
-    }
-    send_closure(G()->connection_creator(), &ConnectionCreator::on_dc_update, DcId::internal(dc_id), std::move(addr),
-                 std::move(promise));
-    return Status::OK();
-  }
-
-  if (loc_key == "SESSION_REVOKE") {
-    if (was_encrypted) {
-      G()->log_out("SESSION_REVOKE");
-    } else {
-      LOG(ERROR) << "Receive unencrypted SESSION_REVOKE push notification";
-    }
-    promise.set_value(Unit());
-    return Status::OK();
-  }
-
-  if (loc_key == "LOCKED_MESSAGE") {
-    return Status::Error(200, "Immediate success");
-  }
-
-  if (loc_key == "GEO_LIVE_PENDING") {
-    td_->messages_manager_->on_update_some_live_location_viewed(std::move(promise));
-    return Status::OK();
-  }
-
-  if (loc_key == "AUTH_REGION" || loc_key == "AUTH_UNKNOWN") {
-    // TODO
-    return Status::Error(200, "Immediate success");
-  }
-
-  DialogId dialog_id;
-  if (custom.has_field("from_id")) {
-    TRY_RESULT(user_id_int, custom.get_optional_long_field("from_id"));
-    UserId user_id(user_id_int);
-    if (!user_id.is_valid()) {
-      return Status::Error("Receive invalid user identifier");
-    }
-    dialog_id = DialogId(user_id);
-  }
-  if (custom.has_field("chat_id")) {
-    TRY_RESULT(chat_id_int, custom.get_optional_long_field("chat_id"));
-    ChatId chat_id(chat_id_int);
-    if (!chat_id.is_valid()) {
-      return Status::Error("Receive invalid basic group identifier");
-    }
-    dialog_id = DialogId(chat_id);
-  }
-  if (custom.has_field("channel_id")) {
-    TRY_RESULT(channel_id_int, custom.get_optional_long_field("channel_id"));
-    ChannelId channel_id(channel_id_int);
-    if (!channel_id.is_valid()) {
-      return Status::Error("Receive invalid supergroup identifier");
-    }
-    dialog_id = DialogId(channel_id);
-  }
-  if (custom.has_field("encryption_id")) {
-    TRY_RESULT(secret_chat_id_int, custom.get_optional_int_field("encryption_id"));
-    SecretChatId secret_chat_id(secret_chat_id_int);
-    if (!secret_chat_id.is_valid()) {
-      return Status::Error("Receive invalid secret chat identifier");
-    }
-    dialog_id = DialogId(secret_chat_id);
-  }
-  if (!dialog_id.is_valid()) {
-    if (loc_key == "ENCRYPTED_MESSAGE" || loc_key == "MESSAGE_MUTED") {
-      return Status::Error(406, "Force loading data from the server");
-    }
-    return Status::Error("Can't find chat identifier");
-  }
-
-  if (loc_key == "READ_HISTORY") {
-    if (dialog_id.get_type() == DialogType::SecretChat) {
-      return Status::Error("Receive read history in a secret chat");
-    }
-
-    TRY_RESULT(max_id, custom.get_optional_int_field("max_id"));
-    ServerMessageId max_server_message_id(max_id);
-    if (!max_server_message_id.is_valid()) {
-      return Status::Error("Receive invalid max_id");
-    }
-
-    td_->messages_manager_->read_history_inbox(dialog_id, MessageId(max_server_message_id), -1,
-                                               "process_push_notification_payload");
-    promise.set_value(Unit());
-    return Status::OK();
-  }
-
-  if (loc_key == "MESSAGE_DELETED") {
-    if (dialog_id.get_type() == DialogType::SecretChat) {
-      return Status::Error("Receive MESSAGE_DELETED in a secret chat");
-    }
-    TRY_RESULT(server_message_ids_str, custom.get_required_string_field("messages"));
-    auto server_message_ids = full_split(server_message_ids_str, ',');
-    vector<MessageId> message_ids;
-    for (const auto &server_message_id_str : server_message_ids) {
-      TRY_RESULT(server_message_id_int, to_integer_safe<int32>(server_message_id_str));
-      ServerMessageId server_message_id(server_message_id_int);
-      if (!server_message_id.is_valid()) {
-        return Status::Error("Receive invalid message identifier");
-      }
-      message_ids.push_back(MessageId(server_message_id));
-    }
-    td_->messages_manager_->remove_message_notifications_by_message_ids(dialog_id, message_ids);
-    promise.set_value(Unit());
-    return Status::OK();
-  }
-
-  if (loc_key == "MESSAGE_MUTED") {
-    return Status::Error(406, "Notifications about muted messages force loading data from the server");
-  }
-
-  if (loc_key == "READ_STORIES") {
-    if (dialog_id.get_type() == DialogType::SecretChat) {
-      return Status::Error("Receive READ_STORIES in a secret chat");
-    }
-
-    TRY_RESULT(max_id, custom.get_optional_int_field("max_id"));
-    StoryId max_story_id(max_id);
-    if (!max_story_id.is_server()) {
-      return Status::Error("Receive invalid max_id");
-    }
-
-    td_->story_manager_->on_update_read_stories(dialog_id, max_story_id);
-    promise.set_value(Unit());
-    return Status::OK();
-  }
-
-  if (loc_key == "STORY_DELETED") {
-    if (dialog_id.get_type() != DialogType::SecretChat) {
-      return Status::Error("Receive STORY_DELETED in a secret chat");
-    }
-    TRY_RESULT(server_story_ids_str, custom.get_required_string_field("story_id"));
-    auto server_story_ids = full_split(server_story_ids_str, ',');
-    vector<StoryId> story_ids;
-    for (const auto &server_story_id_str : server_story_ids) {
-      TRY_RESULT(story_id_int, to_integer_safe<int32>(server_story_id_str));
-      StoryId story_id(story_id_int);
-      if (!story_id.is_server()) {
-        return Status::Error("Receive invalid story identifier");
-      }
-      story_ids.push_back(story_id);
-    }
-    td_->story_manager_->remove_story_notifications_by_story_ids(dialog_id, story_ids);
-    promise.set_value(Unit());
-    return Status::OK();
-  }
-
-  TRY_RESULT(msg_id, custom.get_optional_int_field("msg_id"));
-  ServerMessageId server_message_id(msg_id);
-  if (server_message_id != ServerMessageId() && !server_message_id.is_valid()) {
-    return Status::Error("Receive invalid msg_id");
-  }
-
-  TRY_RESULT(random_id, custom.get_optional_long_field("random_id"));
-
-  UserId sender_user_id;
-  DialogId sender_dialog_id;
-  if (custom.has_field("chat_from_broadcast_id")) {
-    TRY_RESULT(sender_channel_id_int, custom.get_optional_long_field("chat_from_broadcast_id"));
-    sender_dialog_id = DialogId(ChannelId(sender_channel_id_int));
-    if (!sender_dialog_id.is_valid()) {
-      return Status::Error("Receive invalid chat_from_broadcast_id");
-    }
-  } else if (custom.has_field("chat_from_group_id")) {
-    TRY_RESULT(sender_channel_id_int, custom.get_optional_long_field("chat_from_group_id"));
-    sender_dialog_id = DialogId(ChannelId(sender_channel_id_int));
-    if (!sender_dialog_id.is_valid()) {
-      return Status::Error("Receive invalid chat_from_group_id");
-    }
-  } else if (custom.has_field("chat_from_id")) {
-    TRY_RESULT(sender_user_id_int, custom.get_optional_long_field("chat_from_id"));
-    sender_user_id = UserId(sender_user_id_int);
-    if (!sender_user_id.is_valid()) {
-      return Status::Error("Receive invalid chat_from_id");
-    }
-  } else if (dialog_id.get_type() == DialogType::User) {
-    sender_user_id = dialog_id.get_user_id();
-  } else if (dialog_id.get_type() == DialogType::Channel) {
-    sender_dialog_id = dialog_id;
-  }
-
-  TRY_RESULT(contains_mention_int, custom.get_optional_int_field("mention"));
-  bool contains_mention = contains_mention_int != 0;
-
-  if (begins_with(loc_key, "CHANNEL_MESSAGE") || loc_key == "CHANNEL_ALBUM") {
-    if (dialog_id.get_type() != DialogType::Channel) {
-      return Status::Error("Receive wrong chat type");
-    }
-    loc_key = loc_key.substr(8);
-  }
-  string sender_name;
-  if (begins_with(loc_key, "CHAT_")) {
-    auto dialog_type = dialog_id.get_type();
-    if (dialog_type != DialogType::Chat && dialog_type != DialogType::Channel) {
-      return Status::Error("Receive wrong chat type");
-    }
-
-    if (begins_with(loc_key, "CHAT_MESSAGE") || begins_with(loc_key, "CHAT_REACT") || loc_key == "CHAT_ALBUM") {
-      loc_key = loc_key.substr(5);
-    }
-    if (loc_args.empty()) {
-      return Status::Error("Expect sender name as the first argument");
-    }
-    sender_name = std::move(loc_args[0]);
-    loc_args.erase(loc_args.begin());
-  }
-  if (begins_with(loc_key, "MESSAGE") && !server_message_id.is_valid()) {
-    return Status::Error("Receive no message identifier");
-  }
-  if (begins_with(loc_key, "ENCRYPT") || random_id != 0) {
-    if (dialog_id.get_type() != DialogType::SecretChat) {
-      return Status::Error("Receive wrong chat type");
-    }
-  }
-  if (server_message_id.is_valid() && dialog_id.get_type() == DialogType::SecretChat) {
-    return Status::Error("Receive message identifier in a secret chat push notification");
-  }
-
-  if (begins_with(loc_key, "ENCRYPTION_")) {
-    // TODO ENCRYPTION_REQUEST/ENCRYPTION_ACCEPT notifications
-    return Status::Error(406, "New secret chat notification is not supported");
-  }
-
-  if (begins_with(loc_key, "PHONE_CALL_") || begins_with(loc_key, "VIDEO_CALL_")) {
-    // TODO PHONE_CALL_REQUEST/PHONE_CALL_DECLINE/PHONE_CALL_MISSED/VIDEO_CALL_REQUEST/VIDEO_CALL_MISSED notifications
-    return Status::Error(406, "Phone call notification is not supported");
-  }
-
-  if (begins_with(loc_key, "REACT_") || loc_key == "READ_REACTION") {
-    // TODO REACT_* notifications
-    return Status::Error(406, "Reaction notifications are unsupported");
-  }
-
-  if (begins_with(loc_key, "STORY_")) {
-    // TODO STORY_NOTEXT, STORY_HIDDEN_AUTHOR notifications
-    return Status::Error(406, "Story notifications are unsupported");
-  }
-
-  loc_key = convert_loc_key(loc_key);
-  if (loc_key.empty()) {
-    return Status::Error("Push type is unknown");
-  }
-
-  if (loc_args.empty()) {
-    return Status::Error("Expected chat name as the next argument");
-  }
-  if (dialog_id.get_type() == DialogType::User) {
-    sender_name = std::move(loc_args[0]);
-  } else if ((sender_user_id.is_valid() || sender_dialog_id.is_valid()) && begins_with(loc_key, "PINNED_")) {
-    if (loc_args.size() < 2) {
-      return Status::Error("Expected chat title as the last argument");
-    }
-    loc_args.pop_back();
-  }
-  // chat title for CHAT_*, CHANNEL_* and ENCRYPTED_MESSAGE, sender name for MESSAGE_* and CONTACT_JOINED
-  // chat title or sender name for PINNED_*
-  loc_args.erase(loc_args.begin());
-
-  string arg;
-  if (loc_key == "MESSAGE_GAME_SCORE") {
-    if (loc_args.size() != 2) {
-      return Status::Error("Expected 2 arguments for MESSAGE_GAME_SCORE");
-    }
-    TRY_RESULT(score, to_integer_safe<int32>(loc_args[1]));
-    if (score < 0) {
-      return Status::Error("Expected score to be non-negative");
-    }
-    arg = PSTRING() << loc_args[1] << ' ' << loc_args[0];
-    loc_args.clear();
-  }
-  if (loc_key == "MESSAGE_GIVEAWAY") {
-    if (loc_args.size() != 2) {
-      return Status::Error("Expected 2 arguments for MESSAGE_GIVEAWAY");
-    }
-    TRY_RESULT(user_count, to_integer_safe<int32>(loc_args[0]));
-    if (user_count <= 0) {
-      return Status::Error("Expected user count to be non-negative");
-    }
-    TRY_RESULT(month_count, to_integer_safe<int32>(loc_args[1]));
-    if (month_count <= 0) {
-      return Status::Error("Expected month count to be non-negative");
-    }
-    arg = PSTRING() << user_count << ' ' << month_count;
-    loc_args.clear();
-  }
-  if (loc_key == "MESSAGE_GIVEAWAY_STARS") {
-    if (loc_args.size() != 2) {
-      return Status::Error("Expected 2 arguments for MESSAGE_GIVEAWAY_STARS");
-    }
-    TRY_RESULT(user_count, to_integer_safe<int32>(loc_args[0]));
-    if (user_count <= 0) {
-      return Status::Error("Expected user count to be non-negative");
-    }
-    TRY_RESULT(star_count, to_integer_safe<int64>(loc_args[1]));
-    arg = PSTRING() << user_count << ' ' << StarManager::get_star_count(star_count);
-    loc_args.clear();
-  }
-  if (loc_key == "MESSAGE_PAID_MEDIA") {
-    if (loc_args.size() != 1) {
-      return Status::Error("Expected 1 argument for MESSAGE_PAID_MEDIA");
-    }
-    TRY_RESULT(star_count, to_integer_safe<int64>(loc_args[0]));
-    star_count = StarManager::get_star_count(star_count);
-    arg = to_string(star_count);
-    loc_args.clear();
-  }
-  if (loc_args.size() > 1) {
-    return Status::Error("Receive too many arguments");
-  }
-
-  if (loc_args.size() == 1) {
-    arg = std::move(loc_args[0]);
-  }
-
-  if (sender_user_id.is_valid() &&
-      !td_->user_manager_->have_user_force(sender_user_id, "process_push_notification_payload")) {
-    int64 sender_access_hash = -1;
-    telegram_api::object_ptr<telegram_api::UserProfilePhoto> sender_photo;
-    TRY_RESULT(mtpeer, custom.extract_optional_field("mtpeer", JsonValue::Type::Object));
-    if (mtpeer.type() != JsonValue::Type::Null) {
-      auto &mtpeer_object = mtpeer.get_object();
-      TRY_RESULT(ah, mtpeer_object.get_optional_string_field("ah"));
-      if (!ah.empty()) {
-        TRY_RESULT_ASSIGN(sender_access_hash, to_integer_safe<int64>(ah));
-      }
-      TRY_RESULT(ph, mtpeer_object.extract_optional_field("ph", JsonValue::Type::Object));
-      if (ph.type() != JsonValue::Type::Null) {
-        // TODO parse sender photo
-      }
-    }
-
-    add_push_notification_user(sender_user_id, sender_access_hash, sender_name, std::move(sender_photo));
-  }
-
-  Photo attached_photo;
-  Document attached_document;
-  TRY_STATUS(parse_push_notification_attach(dialog_id, loc_key, custom, attached_photo, attached_document));
-
-  if (!arg.empty()) {
-    uint32 emoji = [&] {
-      if (ends_with(loc_key, "PHOTO")) {
-        return 0x1F5BC;
-      }
-      if (ends_with(loc_key, "ANIMATION")) {
-        return 0x1F3AC;
-      }
-      if (ends_with(loc_key, "DOCUMENT")) {
-        return 0x1F4CE;
-      }
-      if (ends_with(loc_key, "VIDEO")) {
-        return 0x1F4F9;
-      }
-      return 0;
-    }();
-    if (emoji != 0) {
-      string prefix;
-      append_utf8_character(prefix, emoji);
-      prefix += ' ';
-      if (begins_with(arg, prefix)) {
-        arg = arg.substr(prefix.size());
-      }
-    }
-  }
-
-  if (custom.has_field("edit_date")) {
-    if (random_id != 0) {
-      return Status::Error("Receive edit of secret message");
-    }
-    TRY_RESULT(edit_date, custom.get_optional_int_field("edit_date"));
-    if (edit_date <= 0) {
-      return Status::Error("Receive wrong edit date");
-    }
-    edit_message_push_notification(dialog_id, MessageId(server_message_id), edit_date, std::move(loc_key),
-                                   std::move(arg), std::move(attached_photo), std::move(attached_document), 0,
-                                   std::move(promise));
-  } else {
-    bool is_from_scheduled = custom.has_field("schedule");
-    bool disable_notification = false;
-    int64 ringtone_id = -1;
-    if (custom.has_field("silent")) {
-      disable_notification = true;
-      ringtone_id = 0;
-    } else if (custom.has_field("ringtone")) {
-      TRY_RESULT_ASSIGN(ringtone_id, custom.get_optional_long_field("ringtone"));
-    }
-    auto message_id = MessageId(server_message_id);
-
-    TRY_RESULT(report_delivery_until_date, custom.get_optional_int_field("report_delivery_until_date"));
-    if (report_delivery_until_date > 0) {
-      td_->message_query_manager_->report_message_delivery({dialog_id, message_id}, report_delivery_until_date, true);
-    }
-    add_message_push_notification(
-        dialog_id, message_id, random_id, sender_user_id, sender_dialog_id, std::move(sender_name), sent_date,
-        is_from_scheduled, contains_mention, disable_notification, ringtone_id, std::move(loc_key), std::move(arg),
-        std::move(attached_photo), std::move(attached_document), NotificationId(), 0, std::move(promise));
-  }
-  return Status::OK();
-}
-
-class NotificationManager::AddMessagePushNotificationLogEvent {
- public:
-  DialogId dialog_id_;
-  MessageId message_id_;
-  int64 random_id_;
-  UserId sender_user_id_;
-  DialogId sender_dialog_id_;
-  string sender_name_;
-  int32 date_;
-  bool is_from_scheduled_;
-  bool contains_mention_;
-  bool disable_notification_;
-  int64 ringtone_id_;
-  string loc_key_;
-  string arg_;
-  Photo photo_;
-  Document document_;
-  NotificationId notification_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_message_id = message_id_.is_valid();
-    bool has_random_id = random_id_ != 0;
-    bool has_sender = sender_user_id_.is_valid();
-    bool has_sender_name = !sender_name_.empty();
-    bool has_arg = !arg_.empty();
-    bool has_photo = !photo_.is_empty();
-    bool has_document = !document_.empty();
-    bool has_sender_dialog_id = sender_dialog_id_.is_valid();
-    bool has_ringtone_id = !disable_notification_ && ringtone_id_ != -1;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(contains_mention_);
-    STORE_FLAG(disable_notification_);
-    STORE_FLAG(has_message_id);
-    STORE_FLAG(has_random_id);
-    STORE_FLAG(has_sender);
-    STORE_FLAG(has_sender_name);
-    STORE_FLAG(has_arg);
-    STORE_FLAG(has_photo);
-    STORE_FLAG(has_document);
-    STORE_FLAG(is_from_scheduled_);
-    STORE_FLAG(has_sender_dialog_id);
-    STORE_FLAG(has_ringtone_id);
-    END_STORE_FLAGS();
-    td::store(dialog_id_, storer);
-    if (has_message_id) {
-      td::store(message_id_, storer);
-    }
-    if (has_random_id) {
-      td::store(random_id_, storer);
-    }
-    if (has_sender) {
-      td::store(sender_user_id_, storer);
-    }
-    if (has_sender_name) {
-      td::store(sender_name_, storer);
-    }
-    td::store(date_, storer);
-    td::store(loc_key_, storer);
-    if (has_arg) {
-      td::store(arg_, storer);
-    }
-    if (has_photo) {
-      td::store(photo_, storer);
-    }
-    if (has_document) {
-      td::store(document_, storer);
-    }
-    td::store(notification_id_, storer);
-    if (has_sender_dialog_id) {
-      td::store(sender_dialog_id_, storer);
-    }
-    if (has_ringtone_id) {
-      td::store(ringtone_id_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_message_id;
-    bool has_random_id;
-    bool has_sender;
-    bool has_sender_name;
-    bool has_arg;
-    bool has_photo;
-    bool has_document;
-    bool has_sender_dialog_id;
-    bool has_ringtone_id;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(contains_mention_);
-    PARSE_FLAG(disable_notification_);
-    PARSE_FLAG(has_message_id);
-    PARSE_FLAG(has_random_id);
-    PARSE_FLAG(has_sender);
-    PARSE_FLAG(has_sender_name);
-    PARSE_FLAG(has_arg);
-    PARSE_FLAG(has_photo);
-    PARSE_FLAG(has_document);
-    PARSE_FLAG(is_from_scheduled_);
-    PARSE_FLAG(has_sender_dialog_id);
-    PARSE_FLAG(has_ringtone_id);
-    END_PARSE_FLAGS();
-    td::parse(dialog_id_, parser);
-    if (has_message_id) {
-      td::parse(message_id_, parser);
-    }
-    if (has_random_id) {
-      td::parse(random_id_, parser);
-    } else {
-      random_id_ = 0;
-    }
-    if (has_sender) {
-      td::parse(sender_user_id_, parser);
-    }
-    if (has_sender_name) {
-      td::parse(sender_name_, parser);
-    }
-    td::parse(date_, parser);
-    td::parse(loc_key_, parser);
-    if (has_arg) {
-      td::parse(arg_, parser);
-    }
-    if (has_photo) {
-      td::parse(photo_, parser);
-    }
-    if (has_document) {
-      td::parse(document_, parser);
-    }
-    td::parse(notification_id_, parser);
-    if (has_sender_dialog_id) {
-      td::parse(sender_dialog_id_, parser);
-    }
-    if (has_ringtone_id) {
-      td::parse(ringtone_id_, parser);
-    } else {
-      ringtone_id_ = disable_notification_ ? 0 : -1;
-    }
-  }
-};
-
-void NotificationManager::add_message_push_notification(DialogId dialog_id, MessageId message_id, int64 random_id,
-                                                        UserId sender_user_id, DialogId sender_dialog_id,
-                                                        string sender_name, int32 date, bool is_from_scheduled,
-                                                        bool contains_mention, bool disable_notification,
-                                                        int64 ringtone_id, string loc_key, string arg, Photo photo,
-                                                        Document document, NotificationId notification_id,
-                                                        uint64 log_event_id, Promise<Unit> promise) {
-  auto is_pinned = begins_with(loc_key, "PINNED_");
-  auto r_info = td_->messages_manager_->get_message_push_notification_info(
-      dialog_id, message_id, random_id, sender_user_id, sender_dialog_id, date, is_from_scheduled, contains_mention,
-      is_pinned, log_event_id != 0);
-  if (r_info.is_error()) {
-    VLOG(notifications) << "Don't need message push notification for " << message_id << "/" << random_id << " from "
-                        << dialog_id << " sent by " << sender_user_id << "/" << sender_dialog_id << " at " << date
-                        << ": " << r_info.error();
-    if (log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    }
-    if (r_info.error().code() == 406) {
-      promise.set_error(r_info.move_as_error());
-    } else {
-      promise.set_error(Status::Error(200, "Immediate success"));
-    }
-    return;
-  }
-
-  auto info = r_info.move_as_ok();
-  CHECK(info.group_id.is_valid());
-
-  if (dialog_id.get_type() == DialogType::SecretChat) {
-    VLOG(notifications) << "Skip notification in secret " << dialog_id;
-    // TODO support secret chat notifications
-    // main problem: there is no message_id yet
-    // also don't forget to delete newSecretChat notification
-    CHECK(log_event_id == 0);
-    return promise.set_error(Status::Error(406, "Secret chat push notifications are unsupported"));
-  }
-  CHECK(random_id == 0);
-
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    CHECK(log_event_id == 0);
-    return promise.set_error(Status::Error(200, "Immediate success"));
-  }
-
-  if (!notification_id.is_valid()) {
-    CHECK(log_event_id == 0);
-    notification_id = get_next_notification_id();
-    if (!notification_id.is_valid()) {
-      return promise.set_value(Unit());
-    }
-  } else {
-    CHECK(log_event_id != 0);
-  }
-
-  if (sender_user_id.is_valid() &&
-      !td_->user_manager_->have_user_force(sender_user_id, "add_message_push_notification")) {
-    add_push_notification_user(sender_user_id, -1, sender_name, nullptr);
-  }
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    AddMessagePushNotificationLogEvent log_event{dialog_id,
-                                                 message_id,
-                                                 random_id,
-                                                 sender_user_id,
-                                                 sender_dialog_id,
-                                                 sender_name,
-                                                 date,
-                                                 is_from_scheduled,
-                                                 contains_mention,
-                                                 disable_notification,
-                                                 ringtone_id,
-                                                 loc_key,
-                                                 arg,
-                                                 photo,
-                                                 document,
-                                                 notification_id};
-    log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::AddMessagePushNotification,
-                              get_log_event_storer(log_event));
-  }
-
-  auto group_id = info.group_id;
-  CHECK(group_id.is_valid());
-
-  bool is_outgoing = sender_user_id.is_valid() ? td_->user_manager_->get_my_id() == sender_user_id : is_from_scheduled;
-  if (log_event_id != 0) {
-    VLOG(notifications) << "Register temporary " << notification_id << " with log event " << log_event_id;
-    NotificationObjectFullId object_full_id(dialog_id, message_id);
-    temporary_notification_log_event_ids_[notification_id] = log_event_id;
-    temporary_notifications_[object_full_id] = {group_id,         notification_id, sender_user_id,
-                                                sender_dialog_id, sender_name,     is_outgoing};
-    temporary_notification_object_ids_[notification_id] = object_full_id;
-  }
-  push_notification_promises_[notification_id].push_back(std::move(promise));
-
-  auto group_type = info.group_type;
-  auto settings_dialog_id = info.settings_dialog_id;
-  VLOG(notifications) << "Add message push " << notification_id << " of type " << loc_key << " for " << message_id
-                      << "/" << random_id << " in " << dialog_id << ", sent by " << sender_user_id << "/"
-                      << sender_dialog_id << "/\"" << sender_name << "\" at " << date << " with arg " << arg
-                      << ", photo " << photo << " and document " << document << " to " << group_id << " of type "
-                      << group_type << " with settings from " << settings_dialog_id;
-
-  add_notification(
-      group_id, group_type, dialog_id, date, settings_dialog_id, disable_notification, ringtone_id, 0, notification_id,
-      create_new_push_message_notification(sender_user_id, sender_dialog_id, sender_name, is_outgoing, message_id,
-                                           std::move(loc_key), std::move(arg), std::move(photo), std::move(document)),
-      "add_message_push_notification");
-}
-
-class NotificationManager::EditMessagePushNotificationLogEvent {
- public:
-  DialogId dialog_id_;
-  MessageId message_id_;
-  int32 edit_date_;
-  string loc_key_;
-  string arg_;
-  Photo photo_;
-  Document document_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_message_id = message_id_.is_valid();
-    bool has_arg = !arg_.empty();
-    bool has_photo = !photo_.is_empty();
-    bool has_document = !document_.empty();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_message_id);
-    STORE_FLAG(has_arg);
-    STORE_FLAG(has_photo);
-    STORE_FLAG(has_document);
-    END_STORE_FLAGS();
-    td::store(dialog_id_, storer);
-    if (has_message_id) {
-      td::store(message_id_, storer);
-    }
-    td::store(edit_date_, storer);
-    td::store(loc_key_, storer);
-    if (has_arg) {
-      td::store(arg_, storer);
-    }
-    if (has_photo) {
-      td::store(photo_, storer);
-    }
-    if (has_document) {
-      td::store(document_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_message_id;
-    bool has_arg;
-    bool has_photo;
-    bool has_document;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_message_id);
-    PARSE_FLAG(has_arg);
-    PARSE_FLAG(has_photo);
-    PARSE_FLAG(has_document);
-    END_PARSE_FLAGS();
-    td::parse(dialog_id_, parser);
-    if (has_message_id) {
-      td::parse(message_id_, parser);
-    }
-    td::parse(edit_date_, parser);
-    td::parse(loc_key_, parser);
-    if (has_arg) {
-      td::parse(arg_, parser);
-    }
-    if (has_photo) {
-      td::parse(photo_, parser);
-    }
-    if (has_document) {
-      td::parse(document_, parser);
-    }
-  }
-};
-
-void NotificationManager::edit_message_push_notification(DialogId dialog_id, MessageId message_id, int32 edit_date,
-                                                         string loc_key, string arg, Photo photo, Document document,
-                                                         uint64 log_event_id, Promise<Unit> promise) {
-  if (is_disabled() || max_notification_group_count_ == 0) {
-    CHECK(log_event_id == 0);
-    return promise.set_error(Status::Error(200, "Immediate success"));
-  }
-
-  auto it = temporary_notifications_.find({dialog_id, message_id});
-  if (it == temporary_notifications_.end()) {
-    VLOG(notifications) << "Ignore edit of message push notification for " << message_id << " in " << dialog_id
-                        << " edited at " << edit_date;
-    return promise.set_error(Status::Error(200, "Immediate success"));
-  }
-
-  auto group_id = it->second.group_id;
-  auto notification_id = it->second.notification_id;
-  auto sender_user_id = it->second.sender_user_id;
-  auto sender_dialog_id = it->second.sender_dialog_id;
-  auto sender_name = it->second.sender_name;
-  auto is_outgoing = it->second.is_outgoing;
-  CHECK(group_id.is_valid());
-  CHECK(notification_id.is_valid());
-
-  if (log_event_id == 0 && G()->use_message_database()) {
-    EditMessagePushNotificationLogEvent log_event{dialog_id, message_id, edit_date, loc_key, arg, photo, document};
-    auto storer = get_log_event_storer(log_event);
-    auto &cur_log_event_id = temporary_edit_notification_log_event_ids_[notification_id];
-    if (cur_log_event_id == 0) {
-      log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::EditMessagePushNotification, storer);
-      cur_log_event_id = log_event_id;
-      VLOG(notifications) << "Add edit message push notification log event " << log_event_id;
-    } else {
-      auto new_log_event_id = binlog_rewrite(G()->td_db()->get_binlog(), cur_log_event_id,
-                                             LogEvent::HandlerType::EditMessagePushNotification, storer);
-      VLOG(notifications) << "Rewrite edit message push notification log event " << cur_log_event_id << " with "
-                          << new_log_event_id;
-    }
-  } else if (log_event_id != 0) {
-    VLOG(notifications) << "Register edit of temporary " << notification_id << " with log event " << log_event_id;
-    temporary_edit_notification_log_event_ids_[notification_id] = log_event_id;
-  }
-
-  push_notification_promises_[notification_id].push_back(std::move(promise));
-
-  edit_notification(group_id, notification_id,
-                    create_new_push_message_notification(sender_user_id, sender_dialog_id, std::move(sender_name),
-                                                         is_outgoing, message_id, std::move(loc_key), std::move(arg),
-                                                         std::move(photo), std::move(document)));
-}
-
-Result<int64> NotificationManager::get_push_receiver_id(string payload) {
-  if (payload == "{}") {
-    return static_cast<int64>(0);
-  }
-
-  auto r_json_value = json_decode(payload);
-  if (r_json_value.is_error()) {
-    return Status::Error(400, "Failed to parse payload as JSON object");
-  }
-
-  auto json_value = r_json_value.move_as_ok();
-  if (json_value.type() != JsonValue::Type::Object) {
-    return Status::Error(400, "Expected JSON object");
-  }
-
-  auto data = std::move(json_value.get_object());
-  if (data.has_field("data")) {
-    auto r_data_data = data.extract_required_field("data", JsonValue::Type::Object);
-    if (r_data_data.is_error()) {
-      return Status::Error(400, r_data_data.error().message());
-    }
-    auto data_data = r_data_data.move_as_ok();
-    data = std::move(data_data.get_object());
-  }
-
-  if (data.has_field("p")) {
-    TRY_RESULT(encrypted_data, data.get_required_string_field("p"));
-    if (encrypted_data.size() < 12) {
-      return Status::Error(400, "Encrypted payload is too small");
-    }
-    auto r_decoded = base64url_decode(encrypted_data.substr(0, 12));
-    if (r_decoded.is_error()) {
-      return Status::Error(400, "Failed to base64url-decode payload");
-    }
-    CHECK(r_decoded.ok().size() == 9);
-    return as<int64>(r_decoded.ok().c_str());
-  }
-  if (data.has_field("user_id")) {
-    TRY_RESULT(user_id, data.get_required_long_field("user_id"));
-    if (user_id <= 0) {
-      return Status::Error(400, PSLICE() << "Receive wrong user_id " << user_id);
-    }
-    return user_id;
-  }
-
-  return static_cast<int64>(0);
-}
-
-Result<string> NotificationManager::decrypt_push(int64 encryption_key_id, string encryption_key, string push) {
-  auto r_json_value = json_decode(push);
-  if (r_json_value.is_error()) {
-    return Status::Error(400, "Failed to parse payload as JSON object");
-  }
-
-  auto json_value = r_json_value.move_as_ok();
-  if (json_value.type() != JsonValue::Type::Object) {
-    return Status::Error(400, "Expected JSON object");
-  }
-
-  const auto &object = json_value.get_object();
-  TRY_RESULT(encrypted_data, object.get_required_string_field("p"));
-  if (encrypted_data.size() < 12) {
-    return Status::Error(400, "Encrypted payload is too small");
-  }
-  auto r_decoded = base64url_decode(encrypted_data);
-  if (r_decoded.is_error()) {
-    return Status::Error(400, "Failed to base64url-decode payload");
-  }
-  return decrypt_push_payload(encryption_key_id, std::move(encryption_key), r_decoded.move_as_ok());
-}
-
-Result<string> NotificationManager::decrypt_push_payload(int64 encryption_key_id, string encryption_key,
-                                                         string payload) {
-  mtproto::AuthKey auth_key(encryption_key_id, std::move(encryption_key));
-  mtproto::PacketInfo packet_info;
-  packet_info.version = 2;
-  packet_info.type = mtproto::PacketInfo::EndToEnd;
-  packet_info.is_creator = true;
-  packet_info.check_mod4 = false;
-
-  TRY_RESULT(result, mtproto::Transport::read(payload, auth_key, &packet_info));
-  if (result.type() != mtproto::Transport::ReadResult::Packet) {
-    return Status::Error(400, "Wrong packet type");
-  }
-  if (result.packet().size() < 4) {
-    return Status::Error(400, "Packet is too small");
-  }
-  return result.packet().substr(4).str();
-}
-
-void NotificationManager::before_get_difference() {
-  if (is_disabled()) {
-    return;
-  }
-  if (running_get_difference_) {
-    return;
-  }
-
-  running_get_difference_ = true;
-  on_unreceived_notification_update_count_changed(1, 0, "before_get_difference");
-}
-
-void NotificationManager::after_get_difference() {
-  if (is_disabled()) {
-    return;
-  }
-
-  CHECK(running_get_difference_);
-  running_get_difference_ = false;
-  on_unreceived_notification_update_count_changed(-1, 0, "after_get_difference");
-  if (!G()->close_flag()) {
-    flush_pending_notifications_timeout_.set_timeout_in(0, MIN_NOTIFICATION_DELAY_MS * 1e-3);
-  }
-}
-
-void NotificationManager::after_get_difference_impl() {
-  if (G()->close_flag() || running_get_difference_) {
-    return;
-  }
-
-  VLOG(notifications) << "After get difference";
-
-  vector<NotificationGroupId> to_remove_temporary_notifications_group_ids;
-  for (auto &group_it : groups_) {
-    const auto &group_key = group_it.first;
-    const auto &group = group_it.second;
-    if (running_get_chat_difference_.count(group_key.group_id.get()) == 0 &&
-        get_temporary_notification_total_count(group) > 0) {
-      to_remove_temporary_notifications_group_ids.push_back(group_key.group_id);
-    }
-  }
-  for (auto group_id : reversed(to_remove_temporary_notifications_group_ids)) {
-    remove_temporary_notifications(group_id, "after_get_difference");
-  }
-
-  flush_all_pending_updates(false, "after_get_difference");
-}
-
-void NotificationManager::before_get_chat_difference(NotificationGroupId group_id) {
-  if (is_disabled()) {
-    return;
-  }
-
-  VLOG(notifications) << "Before get chat difference in " << group_id;
-  CHECK(group_id.is_valid());
-  if (running_get_chat_difference_.insert(group_id.get()).second) {
-    on_unreceived_notification_update_count_changed(1, group_id.get(), "before_get_chat_difference");
-  }
-}
-
-void NotificationManager::after_get_chat_difference(NotificationGroupId group_id) {
-  if (is_disabled()) {
-    return;
-  }
-
-  VLOG(notifications) << "After get chat difference in " << group_id;
-  CHECK(group_id.is_valid());
-  auto erased_count = running_get_chat_difference_.erase(group_id.get());
-  if (erased_count == 1) {
-    if (!G()->close_flag()) {
-      flush_pending_notifications_timeout_.set_timeout_in(-group_id.get(), MIN_NOTIFICATION_DELAY_MS * 1e-3);
-    }
-    on_unreceived_notification_update_count_changed(-1, group_id.get(), "after_get_chat_difference");
-  }
-}
-
-void NotificationManager::after_get_chat_difference_impl(NotificationGroupId group_id) {
-  if (G()->close_flag() || running_get_chat_difference_.count(group_id.get()) == 1) {
-    return;
-  }
-
-  VLOG(notifications) << "Flush updates after get chat difference in " << group_id;
-  CHECK(group_id.is_valid());
-  if (!running_get_difference_ && pending_updates_.count(group_id.get()) == 1) {
-    remove_temporary_notifications(group_id, "after_get_chat_difference");
-    force_flush_pending_updates(group_id, "after_get_chat_difference");
-  }
-}
-
-void NotificationManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (is_disabled() || max_notification_group_count_ == 0 || is_destroyed_) {
-    return;
-  }
-
-  updates.push_back(get_update_active_notifications());
-  updates.push_back(get_update_have_pending_notifications());
-}
-
-void NotificationManager::flush_all_notifications() {
-  flush_all_pending_notifications();
-  flush_all_pending_updates(true, "flush_all_notifications");
-}
-
-void NotificationManager::destroy_all_notifications() {
-  if (is_destroyed_) {
-    return;
-  }
-  is_being_destroyed_ = true;
-
-  size_t cur_pos = 0;
-  for (auto it = groups_.begin(); it != groups_.end() && cur_pos < max_notification_group_count_; ++it, cur_pos++) {
-    auto &group_key = it->first;
-    auto &group = it->second;
-
-    if (group_key.last_notification_date == 0) {
-      break;
-    }
-
-    VLOG(notifications) << "Destroy " << group_key.group_id;
-    send_remove_group_update(group_key, group, vector<int32>());
-  }
-
-  flush_all_pending_updates(true, "destroy_all_notifications");
-  if (delayed_notification_update_count_ != 0) {
-    on_delayed_notification_update_count_changed(-delayed_notification_update_count_, 0, "destroy_all_notifications");
-  }
-  if (unreceived_notification_update_count_ != 0) {
-    on_unreceived_notification_update_count_changed(-unreceived_notification_update_count_, 0,
-                                                    "destroy_all_notifications");
-  }
-
-  while (!push_notification_promises_.empty()) {
-    on_notification_processed(push_notification_promises_.begin()->first);
-  }
-
-  is_destroyed_ = true;
-}
-
-td_api::object_ptr<td_api::updateHavePendingNotifications> NotificationManager::get_update_have_pending_notifications()
-    const {
-  return td_api::make_object<td_api::updateHavePendingNotifications>(delayed_notification_update_count_ != 0,
-                                                                     unreceived_notification_update_count_ != 0);
-}
-
-void NotificationManager::send_update_have_pending_notifications() const {
-  if (is_destroyed_ || !is_inited_ || !is_binlog_processed_) {
-    return;
-  }
-
-  auto update = get_update_have_pending_notifications();
-  VLOG(notifications) << "Send " << oneline(to_string(update));
-  send_closure(G()->td(), &Td::send_update, std::move(update));
-}
-
-void NotificationManager::on_delayed_notification_update_count_changed(int32 diff, int32 notification_group_id,
-                                                                       const char *source) {
-  bool had_delayed = delayed_notification_update_count_ != 0;
-  delayed_notification_update_count_ += diff;
-  CHECK(delayed_notification_update_count_ >= 0);
-  VLOG(notifications) << "Update delayed notification count with diff " << diff << " to "
-                      << delayed_notification_update_count_ << " from group " << notification_group_id << " and "
-                      << source;
-  bool have_delayed = delayed_notification_update_count_ != 0;
-  if (had_delayed != have_delayed) {
-    send_update_have_pending_notifications();
-  }
-}
-
-void NotificationManager::on_unreceived_notification_update_count_changed(int32 diff, int32 notification_group_id,
-                                                                          const char *source) {
-  bool had_unreceived = unreceived_notification_update_count_ != 0;
-  unreceived_notification_update_count_ += diff;
-  CHECK(unreceived_notification_update_count_ >= 0);
-  VLOG(notifications) << "Update unreceived notification count with diff " << diff << " to "
-                      << unreceived_notification_update_count_ << " from group " << notification_group_id << " and "
-                      << source;
-  bool have_unreceived = unreceived_notification_update_count_ != 0;
-  if (had_unreceived != have_unreceived) {
-    send_update_have_pending_notifications();
-  }
-}
-
-void NotificationManager::try_send_update_active_notifications() {
-  if (max_notification_group_count_ == 0) {
-    return;
-  }
-  if (!is_binlog_processed_ || !is_inited_) {
-    return;
-  }
-
-  auto update = get_update_active_notifications();
-  VLOG(notifications) << "Send " << as_active_notifications_update(update.get());
-  send_closure(G()->td(), &Td::send_update, std::move(update));
-
-  while (!push_notification_promises_.empty()) {
-    on_notification_processed(push_notification_promises_.begin()->first);
-  }
-}
-
-void NotificationManager::on_binlog_events(vector<BinlogEvent> &&events) {
-  if (G()->close_flag()) {
-    return;
-  }
-  VLOG(notifications) << "Begin to process " << events.size() << " binlog events";
-  bool have_old_message_database = G()->use_message_database() && !G()->td_db()->was_dialog_db_created();
-  for (auto &event : events) {
-    if (!have_old_message_database || is_disabled() || max_notification_group_count_ == 0) {
-      binlog_erase(G()->td_db()->get_binlog(), event.id_);
-      break;
-    }
-
-    switch (event.type_) {
-      case LogEvent::HandlerType::AddMessagePushNotification: {
-        CHECK(is_inited_);
-        AddMessagePushNotificationLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        add_message_push_notification(
-            log_event.dialog_id_, log_event.message_id_, log_event.random_id_, log_event.sender_user_id_,
-            log_event.sender_dialog_id_, log_event.sender_name_, log_event.date_, log_event.is_from_scheduled_,
-            log_event.contains_mention_, log_event.disable_notification_, 0, log_event.loc_key_, log_event.arg_,
-            log_event.photo_, log_event.document_, log_event.notification_id_, event.id_,
-            PromiseCreator::lambda([](Result<Unit> result) {
-              if (result.is_error() && result.error().code() != 200 && result.error().code() != 406) {
-                LOG(ERROR) << "Receive error " << result.error() << ", while processing message push notification";
-              }
-            }));
-        break;
-      }
-      case LogEvent::HandlerType::EditMessagePushNotification: {
-        CHECK(is_inited_);
-        EditMessagePushNotificationLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        edit_message_push_notification(
-            log_event.dialog_id_, log_event.message_id_, log_event.edit_date_, log_event.loc_key_, log_event.arg_,
-            log_event.photo_, log_event.document_, event.id_, PromiseCreator::lambda([](Result<Unit> result) {
-              if (result.is_error() && result.error().code() != 200 && result.error().code() != 406) {
-                LOG(ERROR) << "Receive error " << result.error() << ", while processing edit message push notification";
-              }
-            }));
-        break;
-      }
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  }
-  if (is_inited_) {
-    flush_all_pending_notifications();
-  }
-  is_binlog_processed_ = true;
-  try_send_update_active_notifications();
-  VLOG(notifications) << "Finish processing binlog events";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationManager.h b/third-party/td/td/td/telegram/NotificationManager.h
deleted file mode 100644
index 7360fe6147..0000000000
--- a/third-party/td/td/td/telegram/NotificationManager.h
+++ /dev/null
@@ -1,423 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CallId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/Notification.h"
-#include "td/telegram/NotificationGroupId.h"
-#include "td/telegram/NotificationGroupKey.h"
-#include "td/telegram/NotificationGroupType.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/NotificationObjectFullId.h"
-#include "td/telegram/NotificationObjectId.h"
-#include "td/telegram/NotificationType.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-
-#include <functional>
-#include <map>
-
-namespace td {
-
-extern int VERBOSITY_NAME(notifications);
-
-struct BinlogEvent;
-class JsonObject;
-class Td;
-
-class NotificationManager final : public Actor {
- public:
-  static constexpr int32 MIN_NOTIFICATION_GROUP_COUNT_MAX = 0;
-  static constexpr int32 MAX_NOTIFICATION_GROUP_COUNT_MAX = 25;
-  static constexpr int32 MIN_NOTIFICATION_GROUP_SIZE_MAX = 1;
-  static constexpr int32 MAX_NOTIFICATION_GROUP_SIZE_MAX = 25;
-
-  NotificationManager(Td *td, ActorShared<> parent);
-
-  void init();
-
-  size_t get_max_notification_group_size() const;
-
-  NotificationId get_max_notification_id() const;
-
-  NotificationId get_next_notification_id();
-
-  NotificationGroupId get_next_notification_group_id();
-
-  void try_reuse_notification_group_id(NotificationGroupId group_id);
-
-  void load_group_force(NotificationGroupId group_id);
-
-  bool have_group_force(NotificationGroupId group_id);
-
-  void add_notification(NotificationGroupId group_id, NotificationGroupType group_type, DialogId dialog_id, int32 date,
-                        DialogId notification_settings_dialog_id, bool disable_notification, int64 ringtone_id,
-                        int32 min_delay_ms, NotificationId notification_id, unique_ptr<NotificationType> type,
-                        const char *source);
-
-  void edit_notification(NotificationGroupId group_id, NotificationId notification_id,
-                         unique_ptr<NotificationType> type);
-
-  void remove_notification(NotificationGroupId group_id, NotificationId notification_id, bool is_permanent,
-                           bool force_update, Promise<Unit> &&promise, const char *source);
-
-  void remove_temporary_notifications(NotificationGroupId group_id, const char *source);
-
-  void remove_temporary_notification_by_object_id(NotificationGroupId group_id, NotificationObjectId object_id,
-                                                  bool force_update, const char *source);
-
-  void remove_notification_group(NotificationGroupId group_id, NotificationId max_notification_id,
-                                 NotificationObjectId max_object_id, int32 new_total_count, bool force_update,
-                                 Promise<Unit> &&promise);
-
-  void set_notification_total_count(NotificationGroupId group_id, int32 new_total_count);
-
-  vector<MessageId> get_notification_group_message_ids(NotificationGroupId group_id);
-
-  void add_call_notification(DialogId dialog_id, CallId call_id);
-
-  void remove_call_notification(DialogId dialog_id, CallId call_id);
-
-  void get_disable_contact_registered_notifications(Promise<Unit> &&promise);
-
-  void on_notification_group_count_max_changed(bool send_updates);
-
-  void on_notification_group_size_max_changed();
-
-  void on_online_cloud_timeout_changed();
-
-  void on_notification_cloud_delay_changed();
-
-  void on_notification_default_delay_changed();
-
-  void on_disable_contact_registered_notifications_changed();
-
-  void process_push_notification(string payload, Promise<Unit> &&user_promise);
-
-  static Result<int64> get_push_receiver_id(string payload);
-
-  static Result<string> decrypt_push(int64 encryption_key_id, string encryption_key, string push);  // public for tests
-
-  void before_get_difference();
-
-  void after_get_difference();
-
-  void before_get_chat_difference(NotificationGroupId group_id);
-
-  void after_get_chat_difference(NotificationGroupId group_id);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
-  void flush_all_notifications();
-
-  void destroy_all_notifications();
-
-  void on_binlog_events(vector<BinlogEvent> &&events);
-
- private:
-  static constexpr int32 DEFAULT_GROUP_COUNT_MAX = 0;
-  static constexpr int32 DEFAULT_GROUP_SIZE_MAX = 10;
-  static constexpr size_t EXTRA_GROUP_SIZE = 10;
-
-  static constexpr size_t MAX_CALL_NOTIFICATION_GROUPS = 10;
-  static constexpr size_t MAX_CALL_NOTIFICATIONS = 10;
-
-  static constexpr int32 DEFAULT_ONLINE_CLOUD_TIMEOUT_MS = 300000;
-  static constexpr int32 DEFAULT_ONLINE_CLOUD_DELAY_MS = 30000;
-  static constexpr int32 DEFAULT_DEFAULT_DELAY_MS = 1500;
-
-  static constexpr int32 MIN_NOTIFICATION_DELAY_MS = 1;
-
-  static constexpr int32 MIN_UPDATE_DELAY_MS = 50;
-  static constexpr int32 MAX_UPDATE_DELAY_MS = 60000;
-
-  static constexpr int32 ANNOUNCEMENT_ID_CACHE_TIME = 7 * 86400;
-
-  class AddMessagePushNotificationLogEvent;
-  class EditMessagePushNotificationLogEvent;
-
-  struct PendingNotification {
-    int32 date = 0;
-    DialogId settings_dialog_id;
-    bool disable_notification = false;
-    int64 ringtone_id = -1;
-    NotificationId notification_id;
-    unique_ptr<NotificationType> type;
-
-    friend StringBuilder &operator<<(StringBuilder &string_builder, const PendingNotification &pending_notification) {
-      return string_builder << "PendingNotification[" << pending_notification.notification_id << " of type "
-                            << pending_notification.type << " sent at " << pending_notification.date
-                            << " with settings from " << pending_notification.settings_dialog_id
-                            << ", ringtone_id = " << pending_notification.ringtone_id << "]";
-    }
-  };
-
-  struct NotificationGroup {
-    int32 total_count = 0;
-    NotificationGroupType type = NotificationGroupType::Calls;
-    bool is_loaded_from_database = false;
-    bool is_being_loaded_from_database = false;
-
-    vector<Notification> notifications;
-
-    double pending_notifications_flush_time = 0;
-    vector<PendingNotification> pending_notifications;
-
-    friend StringBuilder &operator<<(StringBuilder &string_builder, const NotificationGroup &notification_group) {
-      return string_builder << "NotificationGroup[" << notification_group.type << " with total "
-                            << notification_group.total_count << " notifications " << notification_group.notifications
-                            << " + " << notification_group.pending_notifications
-                            << ", is_loaded_from_database = " << notification_group.is_loaded_from_database
-                            << ", is_being_loaded_from_database = " << notification_group.is_being_loaded_from_database
-                            << ", pending_notifications_flush_time = "
-                            << notification_group.pending_notifications_flush_time << ", now = " << Time::now() << "]";
-    }
-  };
-
-  struct ActiveNotificationsUpdate {
-    const td_api::updateActiveNotifications *update;
-  };
-
-  struct NotificationUpdate {
-    const td_api::Update *update;
-  };
-
-  enum class SyncState : int32 { NotSynced, Pending, Completed };
-
-  using NotificationGroups = std::map<NotificationGroupKey, NotificationGroup>;
-
-  static void on_flush_pending_notifications_timeout_callback(void *notification_manager_ptr, int64 group_id_int);
-
-  static void on_flush_pending_updates_timeout_callback(void *notification_manager_ptr, int64 group_id_int);
-
-  bool is_disabled() const;
-
-  void start_up() final;
-  void tear_down() final;
-
-  void add_update(int32 group_id, td_api::object_ptr<td_api::Update> update);
-
-  void add_update_notification_group(td_api::object_ptr<td_api::updateNotificationGroup> update);
-
-  void add_update_notification(NotificationGroupId notification_group_id, DialogId dialog_id,
-                               const Notification &notification);
-
-  NotificationGroups::iterator add_group(NotificationGroupKey &&group_key, NotificationGroup &&group,
-                                         const char *source);
-
-  NotificationGroups::iterator get_group(NotificationGroupId group_id);
-
-  NotificationGroups::iterator get_group_force(NotificationGroupId group_id, bool send_update = true);
-
-  void delete_group(NotificationGroups::iterator &&group_it);
-
-  static NotificationId get_first_notification_id(const NotificationGroup &group);
-
-  static NotificationId get_last_notification_id(const NotificationGroup &group);
-
-  static NotificationObjectId get_first_object_id(const NotificationGroup &group);
-
-  static NotificationObjectId get_last_object_id(const NotificationGroup &group);
-
-  static NotificationObjectId get_last_object_id_by_notification_id(const NotificationGroup &group,
-                                                                    NotificationId max_notification_id);
-
-  static int32 get_temporary_notification_total_count(const NotificationGroup &group);
-
-  int32 load_message_notification_groups_from_database(int32 limit, bool send_update);
-
-  void load_notifications_from_database(const NotificationGroupKey &group_key, NotificationGroup &group,
-                                        size_t desired_size);
-
-  void on_get_notifications_from_database(NotificationGroupId group_id, size_t limit,
-                                          Result<vector<Notification>> r_notifications);
-
-  void add_notifications_to_group_begin(NotificationGroups::iterator group_it, vector<Notification> notifications);
-
-  NotificationGroupKey get_last_updated_group_key() const;
-
-  void try_send_update_active_notifications();
-
-  void send_update_have_pending_notifications() const;
-
-  td_api::object_ptr<td_api::updateHavePendingNotifications> get_update_have_pending_notifications() const;
-
-  td_api::object_ptr<td_api::updateActiveNotifications> get_update_active_notifications() const;
-
-  td_api::object_ptr<td_api::updateNotificationGroup> get_remove_group_update(
-      const NotificationGroupKey &group_key, const NotificationGroup &group,
-      vector<int32> &&removed_notification_ids) const;
-
-  void send_remove_group_update(const NotificationGroupKey &group_key, const NotificationGroup &group,
-                                vector<int32> &&removed_notification_ids);
-
-  void send_add_group_update(const NotificationGroupKey &group_key, const NotificationGroup &group, const char *source);
-
-  int32 get_notification_delay_ms(DialogId dialog_id, const PendingNotification &notification,
-                                  int32 min_delay_ms) const;
-
-  bool do_flush_pending_notifications(NotificationGroupKey &group_key, NotificationGroup &group,
-                                      vector<PendingNotification> &pending_notifications) TD_WARN_UNUSED_RESULT;
-
-  void flush_pending_notifications(NotificationGroupId group_id);
-
-  void flush_all_pending_notifications();
-
-  void on_notification_processed(NotificationId notification_id);
-
-  void on_notification_removed(NotificationId notification_id);
-
-  void on_notifications_removed(NotificationGroups::iterator &&group_it,
-                                vector<td_api::object_ptr<td_api::notification>> &&added_notifications,
-                                vector<int32> &&removed_notification_ids, bool force_update);
-
-  void remove_added_notifications_from_pending_updates(
-      NotificationGroupId group_id,
-      const std::function<bool(const td_api::object_ptr<td_api::notification> &notification)> &is_removed);
-
-  void flush_pending_updates(int32 group_id, const char *source);
-
-  void force_flush_pending_updates(NotificationGroupId group_id, const char *source);
-
-  void flush_all_pending_updates(bool include_delayed_chats, const char *source);
-
-  NotificationGroupId get_call_notification_group_id(DialogId dialog_id);
-
-  static Result<string> decrypt_push_payload(int64 encryption_key_id, string encryption_key, string payload);
-
-  static string convert_loc_key(const string &loc_key);
-
-  void add_push_notification_user(UserId sender_user_id, int64 sender_access_hash, const string &sender_name,
-                                  telegram_api::object_ptr<telegram_api::UserProfilePhoto> &&sender_photo);
-
-  Status parse_push_notification_attach(DialogId dialog_id, string &loc_key, JsonObject &custom, Photo &attached_photo,
-                                        Document &attached_document);
-
-  Status process_push_notification_payload(string payload, bool was_encrypted, Promise<Unit> &promise);
-
-  void add_message_push_notification(DialogId dialog_id, MessageId message_id, int64 random_id, UserId sender_user_id,
-                                     DialogId sender_dialog_id, string sender_name, int32 date, bool is_from_scheduled,
-                                     bool contains_mention, bool disable_notification, int64 ringtone_id,
-                                     string loc_key, string arg, Photo photo, Document document,
-                                     NotificationId notification_id, uint64 log_event_id, Promise<Unit> promise);
-
-  void edit_message_push_notification(DialogId dialog_id, MessageId message_id, int32 edit_date, string loc_key,
-                                      string arg, Photo photo, Document document, uint64 log_event_id,
-                                      Promise<Unit> promise);
-
-  void after_get_difference_impl();
-
-  void after_get_chat_difference_impl(NotificationGroupId group_id);
-
-  void on_delayed_notification_update_count_changed(int32 diff, int32 notification_group_id, const char *source);
-
-  void on_unreceived_notification_update_count_changed(int32 diff, int32 notification_group_id, const char *source);
-
-  static string get_is_contact_registered_notifications_synchronized_key();
-
-  void set_contact_registered_notifications_sync_state(SyncState new_state);
-
-  void run_contact_registered_notifications_sync();
-
-  void on_contact_registered_notifications_sync(bool is_disabled, Result<Unit> result);
-
-  void on_get_disable_contact_registered_notifications(bool is_disabled, Promise<Unit> &&promise);
-
-  void save_announcement_ids();
-
-  static ActiveNotificationsUpdate as_active_notifications_update(const td_api::updateActiveNotifications *update);
-
-  static NotificationUpdate as_notification_update(const td_api::Update *update);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ActiveNotificationsUpdate &update);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const NotificationUpdate &update);
-
-  NotificationId current_notification_id_;
-  NotificationGroupId current_notification_group_id_;
-
-  size_t max_notification_group_count_ = 0;
-  size_t max_notification_group_size_ = 0;
-  size_t keep_notification_group_size_ = 0;
-
-  int32 online_cloud_timeout_ms_ = DEFAULT_ONLINE_CLOUD_TIMEOUT_MS;
-  int32 notification_cloud_delay_ms_ = DEFAULT_ONLINE_CLOUD_DELAY_MS;
-  int32 notification_default_delay_ms_ = DEFAULT_DEFAULT_DELAY_MS;
-
-  int32 delayed_notification_update_count_ = 0;
-  int32 unreceived_notification_update_count_ = 0;
-
-  NotificationGroupKey last_loaded_notification_group_key_;
-
-  SyncState contact_registered_notifications_sync_state_ = SyncState::NotSynced;
-  bool disable_contact_registered_notifications_ = false;
-
-  bool is_being_destroyed_ = false;
-  bool is_destroyed_ = false;
-
-  bool is_inited_ = false;
-  bool is_binlog_processed_ = false;
-
-  bool running_get_difference_ = false;
-  FlatHashSet<int32> running_get_chat_difference_;
-
-  NotificationGroups groups_;
-  FlatHashMap<NotificationGroupId, NotificationGroupKey, NotificationGroupIdHash> group_keys_;
-
-  FlatHashMap<int32, vector<td_api::object_ptr<td_api::Update>>> pending_updates_;
-
-  MultiTimeout flush_pending_notifications_timeout_{"FlushPendingNotificationsTimeout"};
-  MultiTimeout flush_pending_updates_timeout_{"FlushPendingUpdatesTimeout"};
-
-  vector<NotificationGroupId> call_notification_group_ids_;
-  FlatHashSet<NotificationGroupId, NotificationGroupIdHash> available_call_notification_group_ids_;
-  FlatHashMap<DialogId, NotificationGroupId, DialogIdHash> dialog_id_to_call_notification_group_id_;
-
-  FlatHashMap<NotificationId, uint64, NotificationIdHash> temporary_notification_log_event_ids_;
-  FlatHashMap<NotificationId, uint64, NotificationIdHash> temporary_edit_notification_log_event_ids_;
-  struct TemporaryNotification {
-    NotificationGroupId group_id;
-    NotificationId notification_id;
-    UserId sender_user_id;
-    DialogId sender_dialog_id;
-    string sender_name;
-    bool is_outgoing;
-  };
-  FlatHashMap<NotificationObjectFullId, TemporaryNotification, NotificationObjectFullIdHash> temporary_notifications_;
-  FlatHashMap<NotificationId, NotificationObjectFullId, NotificationIdHash> temporary_notification_object_ids_;
-  FlatHashMap<NotificationId, vector<Promise<Unit>>, NotificationIdHash> push_notification_promises_;
-
-  struct ActiveCallNotification {
-    CallId call_id;
-    NotificationId notification_id;
-  };
-  FlatHashMap<DialogId, vector<ActiveCallNotification>, DialogIdHash> active_call_notifications_;
-
-  FlatHashMap<int32, int32> announcement_id_date_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationObjectFullId.h b/third-party/td/td/td/telegram/NotificationObjectFullId.h
deleted file mode 100644
index 325d11c2c3..0000000000
--- a/third-party/td/td/td/telegram/NotificationObjectFullId.h
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/NotificationObjectId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct NotificationObjectFullId {
- private:
-  DialogId dialog_id;
-  NotificationObjectId notification_object_id;
-
- public:
-  NotificationObjectFullId() : dialog_id(), notification_object_id() {
-  }
-
-  NotificationObjectFullId(DialogId dialog_id, NotificationObjectId notification_object_id)
-      : dialog_id(dialog_id), notification_object_id(notification_object_id) {
-  }
-
-  bool operator==(const NotificationObjectFullId &other) const {
-    return dialog_id == other.dialog_id && notification_object_id == other.notification_object_id;
-  }
-
-  bool operator!=(const NotificationObjectFullId &other) const {
-    return !(*this == other);
-  }
-
-  DialogId get_dialog_id() const {
-    return dialog_id;
-  }
-
-  NotificationObjectId get_notification_object_id() const {
-    return notification_object_id;
-  }
-};
-
-struct NotificationObjectFullIdHash {
-  uint32 operator()(NotificationObjectFullId full_notification_object_id) const {
-    return combine_hashes(DialogIdHash()(full_notification_object_id.get_dialog_id()),
-                          NotificationObjectIdHash()(full_notification_object_id.get_notification_object_id()));
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, NotificationObjectFullId full_notification_object_id) {
-  return string_builder << full_notification_object_id.get_notification_object_id() << " in "
-                        << full_notification_object_id.get_dialog_id();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationObjectId.h b/third-party/td/td/td/telegram/NotificationObjectId.h
deleted file mode 100644
index c77f8a4610..0000000000
--- a/third-party/td/td/td/telegram/NotificationObjectId.h
+++ /dev/null
@@ -1,83 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class NotificationObjectId {
-  int64 id = 0;
-
- public:
-  NotificationObjectId() = default;
-
-  NotificationObjectId(MessageId message_id) : id(message_id.get()) {
-  }
-
-  static NotificationObjectId max() {
-    return NotificationObjectId(MessageId::max());
-  }
-
-  int64 get() const {
-    return id;
-  }
-
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  bool operator==(const NotificationObjectId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const NotificationObjectId &other) const {
-    return id != other.id;
-  }
-
-  friend bool operator<(const NotificationObjectId &lhs, const NotificationObjectId &rhs) {
-    return lhs.id < rhs.id;
-  }
-
-  friend bool operator>(const NotificationObjectId &lhs, const NotificationObjectId &rhs) {
-    return lhs.id > rhs.id;
-  }
-
-  friend bool operator<=(const NotificationObjectId &lhs, const NotificationObjectId &rhs) {
-    return lhs.id <= rhs.id;
-  }
-
-  friend bool operator>=(const NotificationObjectId &lhs, const NotificationObjectId &rhs) {
-    return lhs.id >= rhs.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_long();
-  }
-};
-
-struct NotificationObjectIdHash {
-  uint32 operator()(NotificationObjectId notification_object_id) const {
-    return Hash<int64>()(notification_object_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, NotificationObjectId notification_object_id) {
-  return string_builder << "notification object " << notification_object_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationSettingsManager.cpp b/third-party/td/td/td/telegram/NotificationSettingsManager.cpp
deleted file mode 100644
index 90672bbf90..0000000000
--- a/third-party/td/td/td/telegram/NotificationSettingsManager.cpp
+++ /dev/null
@@ -1,1778 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/NotificationSettingsManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AudiosManager.hpp"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/ForumTopicManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/NotificationSound.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/ReactionNotificationSettings.hpp"
-#include "td/telegram/ScopeNotificationSettings.hpp"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/VoiceNotesManager.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/MimeType.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/Random.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-
-namespace td {
-
-class UploadRingtoneQuery final : public Td::ResultHandler {
-  FileUploadId file_upload_id_;
-  Promise<telegram_api::object_ptr<telegram_api::Document>> promise_;
-
- public:
-  explicit UploadRingtoneQuery(Promise<telegram_api::object_ptr<telegram_api::Document>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-            const string &file_name, const string &mime_type) {
-    CHECK(input_file != nullptr);
-    file_upload_id_ = file_upload_id;
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_uploadRingtone(std::move(input_file), file_name, mime_type), {{"ringtone"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_uploadRingtone>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UploadRingtoneQuery: " << to_string(result);
-    promise_.set_value(std::move(result));
-
-    td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-  }
-
-  void on_error(Status status) final {
-    if (FileReferenceManager::is_file_reference_error(status)) {
-      LOG(ERROR) << "Receive file reference error " << status;
-    }
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      // TODO reupload the file
-    }
-
-    td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-    td_->notification_settings_manager_->reload_saved_ringtones(Auto());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SaveRingtoneQuery final : public Td::ResultHandler {
-  FileId file_id_;
-  string file_reference_;
-  bool unsave_ = false;
-
-  Promise<telegram_api::object_ptr<telegram_api::account_SavedRingtone>> promise_;
-
- public:
-  explicit SaveRingtoneQuery(Promise<telegram_api::object_ptr<telegram_api::account_SavedRingtone>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(FileId file_id, tl_object_ptr<telegram_api::inputDocument> &&input_document, bool unsave) {
-    CHECK(input_document != nullptr);
-    CHECK(file_id.is_valid());
-    file_id_ = file_id;
-    file_reference_ = input_document->file_reference_.as_slice().str();
-    unsave_ = unsave;
-
-    send_query(G()->net_query_creator().create(telegram_api::account_saveRingtone(std::move(input_document), unsave),
-                                               {{"ringtone"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_saveRingtone>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SaveRingtoneQuery: " << to_string(result);
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      VLOG(file_references) << "Receive " << status << " for " << file_id_;
-      td_->file_manager_->delete_file_reference(file_id_, file_reference_);
-      td_->file_reference_manager_->repair_file_reference(
-          file_id_, PromiseCreator::lambda([ringtone_id = file_id_, unsave = unsave_,
-                                            promise = std::move(promise_)](Result<Unit> result) mutable {
-            if (result.is_error()) {
-              return promise.set_error(Status::Error(400, "Failed to find the ringtone"));
-            }
-
-            send_closure(G()->notification_settings_manager(), &NotificationSettingsManager::send_save_ringtone_query,
-                         ringtone_id, unsave, std::move(promise));
-          }));
-      return;
-    }
-
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for SaveRingtoneQuery: " << status;
-    }
-    td_->notification_settings_manager_->reload_saved_ringtones(Auto());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSavedRingtonesQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::account_SavedRingtones>> promise_;
-
- public:
-  explicit GetSavedRingtonesQuery(Promise<telegram_api::object_ptr<telegram_api::account_SavedRingtones>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::account_getSavedRingtones(hash), {{"ringtone"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getSavedRingtones>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetSavedRingtonesQuery: " << to_string(ptr);
-
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetDialogNotifySettingsQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  MessageId top_thread_message_id_;
-
- public:
-  void send(DialogId dialog_id, MessageId top_thread_message_id) {
-    dialog_id_ = dialog_id;
-    top_thread_message_id_ = top_thread_message_id;
-    auto input_notify_peer =
-        td_->notification_settings_manager_->get_input_notify_peer(dialog_id, top_thread_message_id);
-    CHECK(input_notify_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::account_getNotifySettings(std::move(input_notify_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getNotifySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    if (top_thread_message_id_.is_valid()) {
-      td_->forum_topic_manager_->on_update_forum_topic_notify_settings(dialog_id_, top_thread_message_id_,
-                                                                       std::move(ptr), "GetDialogNotifySettingsQuery");
-    } else {
-      td_->messages_manager_->on_update_dialog_notify_settings(dialog_id_, std::move(ptr),
-                                                               "GetDialogNotifySettingsQuery");
-    }
-    td_->notification_settings_manager_->on_get_dialog_notification_settings_query_finished(
-        dialog_id_, top_thread_message_id_, Status::OK());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetDialogNotifySettingsQuery");
-    td_->notification_settings_manager_->on_get_dialog_notification_settings_query_finished(
-        dialog_id_, top_thread_message_id_, std::move(status));
-  }
-};
-
-class GetNotifySettingsExceptionsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetNotifySettingsExceptionsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(NotificationSettingsScope scope, bool filter_scope, bool compare_sound) {
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::InputNotifyPeer> input_notify_peer;
-    if (filter_scope) {
-      flags |= telegram_api::account_getNotifyExceptions::PEER_MASK;
-      input_notify_peer = get_input_notify_peer(scope);
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_getNotifyExceptions(flags, compare_sound, false, std::move(input_notify_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getNotifyExceptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto updates_ptr = result_ptr.move_as_ok();
-    auto dialog_ids = UpdatesManager::get_update_notify_settings_dialog_ids(updates_ptr.get());
-    vector<tl_object_ptr<telegram_api::User>> users;
-    vector<tl_object_ptr<telegram_api::Chat>> chats;
-    switch (updates_ptr->get_id()) {
-      case telegram_api::updatesCombined::ID: {
-        auto updates = static_cast<telegram_api::updatesCombined *>(updates_ptr.get());
-        users = std::move(updates->users_);
-        chats = std::move(updates->chats_);
-        reset_to_empty(updates->users_);
-        reset_to_empty(updates->chats_);
-        break;
-      }
-      case telegram_api::updates::ID: {
-        auto updates = static_cast<telegram_api::updates *>(updates_ptr.get());
-        users = std::move(updates->users_);
-        chats = std::move(updates->chats_);
-        reset_to_empty(updates->users_);
-        reset_to_empty(updates->chats_);
-        break;
-      }
-    }
-    td_->user_manager_->on_get_users(std::move(users), "GetNotifySettingsExceptionsQuery");
-    td_->chat_manager_->on_get_chats(std::move(chats), "GetNotifySettingsExceptionsQuery");
-    for (auto &dialog_id : dialog_ids) {
-      td_->dialog_manager_->force_create_dialog(dialog_id, "GetNotifySettingsExceptionsQuery");
-    }
-    td_->updates_manager_->on_get_updates(std::move(updates_ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStoryNotifySettingsExceptionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chats>> promise_;
-
- public:
-  explicit GetStoryNotifySettingsExceptionsQuery(Promise<td_api::object_ptr<td_api::chats>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getNotifyExceptions(0, false, true, nullptr)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getNotifyExceptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto updates_ptr = result_ptr.move_as_ok();
-    auto dialog_ids = UpdatesManager::get_update_notify_settings_dialog_ids(updates_ptr.get());
-    vector<tl_object_ptr<telegram_api::User>> users;
-    vector<tl_object_ptr<telegram_api::Chat>> chats;
-    switch (updates_ptr->get_id()) {
-      case telegram_api::updatesCombined::ID: {
-        auto updates = static_cast<telegram_api::updatesCombined *>(updates_ptr.get());
-        users = std::move(updates->users_);
-        chats = std::move(updates->chats_);
-        reset_to_empty(updates->users_);
-        reset_to_empty(updates->chats_);
-        break;
-      }
-      case telegram_api::updates::ID: {
-        auto updates = static_cast<telegram_api::updates *>(updates_ptr.get());
-        users = std::move(updates->users_);
-        chats = std::move(updates->chats_);
-        reset_to_empty(updates->users_);
-        reset_to_empty(updates->chats_);
-        break;
-      }
-    }
-    td_->user_manager_->on_get_users(std::move(users), "GetStoryNotifySettingsExceptionsQuery");
-    td_->chat_manager_->on_get_chats(std::move(chats), "GetStoryNotifySettingsExceptionsQuery");
-    for (auto &dialog_id : dialog_ids) {
-      td_->dialog_manager_->force_create_dialog(dialog_id, "GetStoryNotifySettingsExceptionsQuery");
-    }
-    auto chat_ids = td_->dialog_manager_->get_chats_object(-1, dialog_ids, "GetStoryNotifySettingsExceptionsQuery");
-    auto promise = PromiseCreator::lambda([promise = std::move(promise_), chat_ids = std::move(chat_ids)](
-                                              Result<Unit>) mutable { promise.set_value(std::move(chat_ids)); });
-    td_->updates_manager_->on_get_updates(std::move(updates_ptr), std::move(promise));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetScopeNotifySettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  NotificationSettingsScope scope_;
-
- public:
-  explicit GetScopeNotifySettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(NotificationSettingsScope scope) {
-    scope_ = scope;
-    auto input_notify_peer = get_input_notify_peer(scope);
-    CHECK(input_notify_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::account_getNotifySettings(std::move(input_notify_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getNotifySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    td_->notification_settings_manager_->on_update_scope_notify_settings(scope_, std::move(ptr));
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetReactionsNotifySettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetReactionsNotifySettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_getReactionsNotifySettings()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getReactionsNotifySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    td_->notification_settings_manager_->on_update_reaction_notification_settings(
-        ReactionNotificationSettings(std::move(ptr)));
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateDialogNotifySettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  MessageId top_thread_message_id_;
-
- public:
-  explicit UpdateDialogNotifySettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, MessageId top_thread_message_id, const DialogNotificationSettings &new_settings) {
-    dialog_id_ = dialog_id;
-    top_thread_message_id_ = top_thread_message_id;
-
-    auto input_notify_peer =
-        td_->notification_settings_manager_->get_input_notify_peer(dialog_id, top_thread_message_id);
-    if (input_notify_peer == nullptr) {
-      return on_error(Status::Error(500, "Can't update chat notification settings"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::account_updateNotifySettings(
-        std::move(input_notify_peer), new_settings.get_input_peer_notify_settings())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateNotifySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Receive false as result"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "UpdateDialogNotifySettingsQuery")) {
-      LOG(INFO) << "Receive error for set chat notification settings: " << status;
-    }
-
-    if (!td_->auth_manager_->is_bot() &&
-        td_->notification_settings_manager_->get_input_notify_peer(dialog_id_, top_thread_message_id_) != nullptr) {
-      // trying to repair notification settings for this dialog
-      td_->notification_settings_manager_->send_get_dialog_notification_settings_query(
-          dialog_id_, top_thread_message_id_, Promise<>());
-    }
-
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateScopeNotifySettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  NotificationSettingsScope scope_;
-
- public:
-  explicit UpdateScopeNotifySettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(NotificationSettingsScope scope, const ScopeNotificationSettings &new_settings) {
-    auto input_notify_peer = get_input_notify_peer(scope);
-    CHECK(input_notify_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::account_updateNotifySettings(
-        std::move(input_notify_peer), new_settings.get_input_peer_notify_settings())));
-    scope_ = scope;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateNotifySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Receive false as result"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for set notification settings: " << status;
-
-    if (!td_->auth_manager_->is_bot()) {
-      // trying to repair notification settings for this scope
-      td_->notification_settings_manager_->send_get_scope_notification_settings_query(scope_, Promise<>());
-    }
-
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetReactionsNotifySettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetReactionsNotifySettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const ReactionNotificationSettings &settings) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_setReactionsNotifySettings(settings.get_input_reactions_notify_settings())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_setReactionsNotifySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SetReactionsNotifySettingsQuery: " << to_string(ptr);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for set reaction notification settings: " << status;
-
-    if (!td_->auth_manager_->is_bot()) {
-      // trying to repair notification settings
-      td_->notification_settings_manager_->send_get_reaction_notification_settings_query(Promise<>());
-    }
-
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResetNotifySettingsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ResetNotifySettingsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::account_resetNotifySettings()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_resetNotifySettings>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Receive false as result"));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for reset notification settings: " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class NotificationSettingsManager::UploadRingtoneCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->notification_settings_manager(), &NotificationSettingsManager::on_upload_ringtone,
-                       file_upload_id, std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->notification_settings_manager(), &NotificationSettingsManager::on_upload_ringtone_error,
-                       file_upload_id, std::move(error));
-  }
-};
-
-class NotificationSettingsManager::RingtoneListLogEvent {
- public:
-  int64 hash_;
-  vector<FileId> ringtone_file_ids_;
-
-  RingtoneListLogEvent() = default;
-
-  RingtoneListLogEvent(int64 hash, vector<FileId> ringtone_file_ids)
-      : hash_(hash), ringtone_file_ids_(std::move(ringtone_file_ids)) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(hash_, storer);
-    AudiosManager *audios_manager = storer.context()->td().get_actor_unsafe()->audios_manager_.get();
-    td::store(narrow_cast<int32>(ringtone_file_ids_.size()), storer);
-    for (auto ringtone_file_id : ringtone_file_ids_) {
-      audios_manager->store_audio(ringtone_file_id, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(hash_, parser);
-    AudiosManager *audios_manager = parser.context()->td().get_actor_unsafe()->audios_manager_.get();
-    int32 size = parser.fetch_int();
-    ringtone_file_ids_.resize(size);
-    for (auto &ringtone_file_id : ringtone_file_ids_) {
-      ringtone_file_id = audios_manager->parse_audio(parser);
-    }
-  }
-};
-
-NotificationSettingsManager::NotificationSettingsManager(Td *td, ActorShared<> parent)
-    : td_(td), parent_(std::move(parent)) {
-  upload_ringtone_callback_ = std::make_shared<UploadRingtoneCallback>();
-
-  scope_unmute_timeout_.set_callback(on_scope_unmute_timeout_callback);
-  scope_unmute_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-NotificationSettingsManager::~NotificationSettingsManager() = default;
-
-void NotificationSettingsManager::tear_down() {
-  parent_.reset();
-}
-
-void NotificationSettingsManager::start_up() {
-  init();
-}
-
-void NotificationSettingsManager::init() {
-  if (is_inited_) {
-    return;
-  }
-  is_inited_ = true;
-
-  bool was_authorized_user = td_->auth_manager_->was_authorized() && !td_->auth_manager_->is_bot();
-  if (was_authorized_user) {
-    for (auto scope :
-         {NotificationSettingsScope::Private, NotificationSettingsScope::Group, NotificationSettingsScope::Channel}) {
-      auto notification_settings_string =
-          G()->td_db()->get_binlog_pmc()->get(get_notification_settings_scope_database_key(scope));
-      if (!notification_settings_string.empty()) {
-        auto current_settings = get_scope_notification_settings(scope);
-        CHECK(current_settings != nullptr);
-        log_event_parse(*current_settings, notification_settings_string).ensure();
-
-        VLOG(notifications) << "Loaded notification settings in " << scope << ": " << *current_settings;
-
-        schedule_scope_unmute(scope, current_settings->mute_until, G()->unix_time());
-
-        send_closure(G()->td(), &Td::send_update, get_update_scope_notification_settings_object(scope));
-      }
-    }
-    auto reaction_notification_settings_string =
-        G()->td_db()->get_binlog_pmc()->get(get_reaction_notification_settings_database_key());
-    if (!reaction_notification_settings_string.empty()) {
-      log_event_parse(reaction_notification_settings_, reaction_notification_settings_string).ensure();
-      have_reaction_notification_settings_ = true;
-
-      VLOG(notifications) << "Loaded reaction notification settings: " << reaction_notification_settings_;
-    } else {
-      send_get_reaction_notification_settings_query(Promise<Unit>());
-    }
-    send_closure(G()->td(), &Td::send_update, get_update_reaction_notification_settings_object());
-  }
-  G()->td_db()->get_binlog_pmc()->erase("nsfac");
-}
-
-void NotificationSettingsManager::on_scope_unmute_timeout_callback(void *notification_settings_manager_ptr,
-                                                                   int64 scope_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(1 <= scope_int && scope_int <= 3);
-  auto notification_settings_manager = static_cast<NotificationSettingsManager *>(notification_settings_manager_ptr);
-  send_closure_later(notification_settings_manager->actor_id(notification_settings_manager),
-                     &NotificationSettingsManager::on_scope_unmute,
-                     static_cast<NotificationSettingsScope>(scope_int - 1));
-}
-
-void NotificationSettingsManager::timeout_expired() {
-  reload_saved_ringtones(Promise<Unit>());
-}
-
-int32 NotificationSettingsManager::get_scope_mute_until(NotificationSettingsScope scope) const {
-  return get_scope_notification_settings(scope)->mute_until;
-}
-
-std::pair<bool, bool> NotificationSettingsManager::get_scope_mute_stories(NotificationSettingsScope scope) const {
-  auto *settings = get_scope_notification_settings(scope);
-  return {settings->use_default_mute_stories, settings->mute_stories};
-}
-
-const unique_ptr<NotificationSound> &NotificationSettingsManager::get_scope_notification_sound(
-    NotificationSettingsScope scope) const {
-  return get_scope_notification_settings(scope)->sound;
-}
-
-const unique_ptr<NotificationSound> &NotificationSettingsManager::get_scope_story_notification_sound(
-    NotificationSettingsScope scope) const {
-  return get_scope_notification_settings(scope)->story_sound;
-}
-
-bool NotificationSettingsManager::get_scope_show_preview(NotificationSettingsScope scope) const {
-  return get_scope_notification_settings(scope)->show_preview;
-}
-
-bool NotificationSettingsManager::get_scope_hide_story_sender(NotificationSettingsScope scope) const {
-  return get_scope_notification_settings(scope)->hide_story_sender;
-}
-
-bool NotificationSettingsManager::get_scope_disable_pinned_message_notifications(
-    NotificationSettingsScope scope) const {
-  return get_scope_notification_settings(scope)->disable_pinned_message_notifications;
-}
-
-bool NotificationSettingsManager::get_scope_disable_mention_notifications(NotificationSettingsScope scope) const {
-  return get_scope_notification_settings(scope)->disable_mention_notifications;
-}
-
-tl_object_ptr<telegram_api::InputNotifyPeer> NotificationSettingsManager::get_input_notify_peer(
-    DialogId dialog_id, MessageId top_thread_message_id) const {
-  if (!td_->messages_manager_->have_dialog(dialog_id)) {
-    return nullptr;
-  }
-  auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-  if (input_peer == nullptr) {
-    return nullptr;
-  }
-  if (top_thread_message_id.is_valid()) {
-    CHECK(top_thread_message_id.is_server());
-    return telegram_api::make_object<telegram_api::inputNotifyForumTopic>(
-        std::move(input_peer), top_thread_message_id.get_server_message_id().get());
-  }
-  return make_tl_object<telegram_api::inputNotifyPeer>(std::move(input_peer));
-}
-
-ScopeNotificationSettings *NotificationSettingsManager::get_scope_notification_settings(
-    NotificationSettingsScope scope) {
-  switch (scope) {
-    case NotificationSettingsScope::Private:
-      return &users_notification_settings_;
-    case NotificationSettingsScope::Group:
-      return &chats_notification_settings_;
-    case NotificationSettingsScope::Channel:
-      return &channels_notification_settings_;
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-const ScopeNotificationSettings *NotificationSettingsManager::get_scope_notification_settings(
-    NotificationSettingsScope scope) const {
-  switch (scope) {
-    case NotificationSettingsScope::Private:
-      return &users_notification_settings_;
-    case NotificationSettingsScope::Group:
-      return &chats_notification_settings_;
-    case NotificationSettingsScope::Channel:
-      return &channels_notification_settings_;
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::updateScopeNotificationSettings>
-NotificationSettingsManager::get_update_scope_notification_settings_object(NotificationSettingsScope scope) const {
-  auto notification_settings = get_scope_notification_settings(scope);
-  CHECK(notification_settings != nullptr);
-  return td_api::make_object<td_api::updateScopeNotificationSettings>(
-      get_notification_settings_scope_object(scope), get_scope_notification_settings_object(notification_settings));
-}
-
-td_api::object_ptr<td_api::updateReactionNotificationSettings>
-NotificationSettingsManager::get_update_reaction_notification_settings_object() const {
-  return td_api::make_object<td_api::updateReactionNotificationSettings>(
-      reaction_notification_settings_.get_reaction_notification_settings_object());
-}
-
-void NotificationSettingsManager::on_scope_unmute(NotificationSettingsScope scope) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  auto notification_settings = get_scope_notification_settings(scope);
-  CHECK(notification_settings != nullptr);
-
-  if (notification_settings->mute_until == 0) {
-    return;
-  }
-
-  auto unix_time = G()->unix_time();
-  if (notification_settings->mute_until > unix_time) {
-    LOG(INFO) << "Failed to unmute " << scope << " in " << unix_time << ", will be unmuted in "
-              << notification_settings->mute_until;
-    schedule_scope_unmute(scope, notification_settings->mute_until, unix_time);
-    return;
-  }
-
-  LOG(INFO) << "Unmute " << scope;
-  update_scope_unmute_timeout(scope, notification_settings->mute_until, 0);
-  send_closure(G()->td(), &Td::send_update, get_update_scope_notification_settings_object(scope));
-  save_scope_notification_settings(scope, *notification_settings);
-}
-
-string NotificationSettingsManager::get_notification_settings_scope_database_key(NotificationSettingsScope scope) {
-  switch (scope) {
-    case NotificationSettingsScope::Private:
-      return "nsfpc";
-    case NotificationSettingsScope::Group:
-      return "nsfgc";
-    case NotificationSettingsScope::Channel:
-      return "nsfcc";
-    default:
-      UNREACHABLE();
-      return "";
-  }
-}
-
-void NotificationSettingsManager::save_scope_notification_settings(NotificationSettingsScope scope,
-                                                                   const ScopeNotificationSettings &new_settings) {
-  string key = get_notification_settings_scope_database_key(scope);
-  G()->td_db()->get_binlog_pmc()->set(key, log_event_store(new_settings).as_slice().str());
-}
-
-void NotificationSettingsManager::on_update_scope_notify_settings(
-    NotificationSettingsScope scope, tl_object_ptr<telegram_api::peerNotifySettings> &&peer_notify_settings) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto old_notification_settings = get_scope_notification_settings(scope);
-  CHECK(old_notification_settings != nullptr);
-
-  ScopeNotificationSettings notification_settings = ::td::get_scope_notification_settings(
-      std::move(peer_notify_settings), old_notification_settings->disable_pinned_message_notifications,
-      old_notification_settings->disable_mention_notifications);
-  if (!notification_settings.is_synchronized) {
-    return;
-  }
-
-  update_scope_notification_settings(scope, old_notification_settings, std::move(notification_settings));
-}
-
-bool NotificationSettingsManager::update_scope_notification_settings(NotificationSettingsScope scope,
-                                                                     ScopeNotificationSettings *current_settings,
-                                                                     ScopeNotificationSettings &&new_settings) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return false;
-  }
-
-  bool need_update_server = current_settings->mute_until != new_settings.mute_until ||
-                            !are_equivalent_notification_sounds(current_settings->sound, new_settings.sound) ||
-                            current_settings->show_preview != new_settings.show_preview;
-  bool need_update_local =
-      current_settings->disable_pinned_message_notifications != new_settings.disable_pinned_message_notifications ||
-      current_settings->disable_mention_notifications != new_settings.disable_mention_notifications;
-  bool was_inited = current_settings->is_synchronized;
-  bool is_inited = new_settings.is_synchronized;
-  if (was_inited && !is_inited) {
-    return false;  // just in case
-  }
-  bool is_changed = need_update_server || need_update_local || was_inited != is_inited ||
-                    are_different_equivalent_notification_sounds(current_settings->sound, new_settings.sound);
-  if (is_changed) {
-    save_scope_notification_settings(scope, new_settings);
-
-    VLOG(notifications) << "Update notification settings in " << scope << " from " << *current_settings << " to "
-                        << new_settings;
-
-    update_scope_unmute_timeout(scope, current_settings->mute_until, new_settings.mute_until);
-
-    if (!current_settings->disable_pinned_message_notifications && new_settings.disable_pinned_message_notifications) {
-      td_->messages_manager_->remove_scope_pinned_message_notifications(scope);
-    }
-    if (current_settings->disable_mention_notifications != new_settings.disable_mention_notifications) {
-      td_->messages_manager_->on_update_scope_mention_notifications(scope, new_settings.disable_mention_notifications);
-    }
-
-    *current_settings = std::move(new_settings);
-
-    send_closure(G()->td(), &Td::send_update, get_update_scope_notification_settings_object(scope));
-  }
-  return need_update_server;
-}
-
-void NotificationSettingsManager::send_get_reaction_notification_settings_query(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Can't get reaction notification settings";
-    return promise.set_error(Status::Error(500, "Wrong getReactionNotificationSettings query"));
-  }
-
-  td_->create_handler<GetReactionsNotifySettingsQuery>(std::move(promise))->send();
-}
-
-void NotificationSettingsManager::on_update_reaction_notification_settings(
-    ReactionNotificationSettings reaction_notification_settings) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (reaction_notification_settings == reaction_notification_settings_) {
-    if (!have_reaction_notification_settings_) {
-      have_reaction_notification_settings_ = true;
-      save_reaction_notification_settings();
-    }
-    return;
-  }
-
-  VLOG(notifications) << "Update reaction notification settings from " << reaction_notification_settings_ << " to "
-                      << reaction_notification_settings;
-
-  reaction_notification_settings_ = std::move(reaction_notification_settings);
-  have_reaction_notification_settings_ = true;
-
-  save_reaction_notification_settings();
-
-  send_closure(G()->td(), &Td::send_update, get_update_reaction_notification_settings_object());
-}
-
-string NotificationSettingsManager::get_reaction_notification_settings_database_key() {
-  return "rns";
-}
-
-void NotificationSettingsManager::save_reaction_notification_settings() const {
-  string key = get_reaction_notification_settings_database_key();
-  G()->td_db()->get_binlog_pmc()->set(key, log_event_store(reaction_notification_settings_).as_slice().str());
-}
-
-void NotificationSettingsManager::schedule_scope_unmute(NotificationSettingsScope scope, int32 mute_until,
-                                                        int32 unix_time) {
-  if (mute_until >= unix_time && mute_until < unix_time + 366 * 86400) {
-    scope_unmute_timeout_.set_timeout_in(static_cast<int64>(scope) + 1, mute_until - unix_time + 1);
-  } else {
-    scope_unmute_timeout_.cancel_timeout(static_cast<int64>(scope) + 1);
-  }
-}
-
-void NotificationSettingsManager::update_scope_unmute_timeout(NotificationSettingsScope scope, int32 &old_mute_until,
-                                                              int32 new_mute_until) {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-
-  LOG(INFO) << "Update " << scope << " unmute timeout from " << old_mute_until << " to " << new_mute_until;
-  if (old_mute_until == new_mute_until) {
-    return;
-  }
-  CHECK(old_mute_until >= 0);
-
-  schedule_scope_unmute(scope, new_mute_until, G()->unix_time());
-
-  auto was_muted = old_mute_until != 0;
-  auto is_muted = new_mute_until != 0;
-
-  old_mute_until = new_mute_until;
-
-  if (was_muted != is_muted) {
-    td_->messages_manager_->on_update_notification_scope_is_muted(scope, is_muted);
-  }
-}
-
-void NotificationSettingsManager::reset_scope_notification_settings() {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  for (auto scope :
-       {NotificationSettingsScope::Private, NotificationSettingsScope::Group, NotificationSettingsScope::Channel}) {
-    auto current_settings = get_scope_notification_settings(scope);
-    CHECK(current_settings != nullptr);
-    ScopeNotificationSettings new_scope_settings;
-    new_scope_settings.is_synchronized = true;
-    update_scope_notification_settings(scope, current_settings, std::move(new_scope_settings));
-  }
-}
-
-bool NotificationSettingsManager::is_active() const {
-  return !G()->close_flag() && td_->auth_manager_->is_authorized() && !td_->auth_manager_->is_bot();
-}
-
-FileId NotificationSettingsManager::get_saved_ringtone(int64 ringtone_id, Promise<Unit> &&promise) {
-  if (!are_saved_ringtones_loaded_) {
-    load_saved_ringtones(std::move(promise));
-    return {};
-  }
-
-  promise.set_value(Unit());
-  for (auto &file_id : saved_ringtone_file_ids_) {
-    auto file_view = td_->file_manager_->get_file_view(file_id);
-    CHECK(!file_view.empty());
-    CHECK(file_view.get_type() == FileType::Ringtone);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    if (full_remote_location->get_id() == ringtone_id) {
-      return file_view.get_main_file_id();
-    }
-  }
-  return {};
-}
-
-vector<FileId> NotificationSettingsManager::get_saved_ringtones(Promise<Unit> &&promise) {
-  if (!are_saved_ringtones_loaded_) {
-    load_saved_ringtones(std::move(promise));
-    return {};
-  }
-
-  promise.set_value(Unit());
-  return saved_ringtone_file_ids_;
-}
-
-void NotificationSettingsManager::send_save_ringtone_query(
-    FileId ringtone_file_id, bool unsave,
-    Promise<telegram_api::object_ptr<telegram_api::account_SavedRingtone>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  // TODO log event
-  auto file_view = td_->file_manager_->get_file_view(ringtone_file_id);
-  CHECK(!file_view.empty());
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  CHECK(full_remote_location != nullptr);
-  CHECK(full_remote_location->is_document());
-  CHECK(!full_remote_location->is_web());
-  td_->create_handler<SaveRingtoneQuery>(std::move(promise))
-      ->send(ringtone_file_id, full_remote_location->as_input_document(), unsave);
-}
-
-void NotificationSettingsManager::add_saved_ringtone(td_api::object_ptr<td_api::InputFile> &&input_file,
-                                                     Promise<td_api::object_ptr<td_api::notificationSound>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (!are_saved_ringtones_loaded_) {
-    load_saved_ringtones(PromiseCreator::lambda([actor_id = actor_id(this), input_file = std::move(input_file),
-                                                 promise = std::move(promise)](Result<Unit> &&result) mutable {
-      if (result.is_error()) {
-        return promise.set_error(result.move_as_error());
-      }
-
-      send_closure(actor_id, &NotificationSettingsManager::add_saved_ringtone, std::move(input_file),
-                   std::move(promise));
-    }));
-    return;
-  }
-
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(FileType::Ringtone, input_file, DialogId(), false, false));
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  CHECK(!file_view.empty());
-  if (file_view.size() > td_->option_manager_->get_option_integer("notification_sound_size_max")) {
-    return promise.set_error(Status::Error(400, "Notification sound file is too big"));
-  }
-  auto file_type = file_view.get_type();
-  int32 duration = 0;
-  switch (file_type) {
-    case FileType::Audio:
-      duration = td_->audios_manager_->get_audio_duration(file_id);
-      break;
-    case FileType::VoiceNote:
-      duration = td_->voice_notes_manager_->get_voice_note_duration(file_id);
-      break;
-    default:
-      break;
-  }
-  if (duration > td_->option_manager_->get_option_integer("notification_sound_duration_max")) {
-    return promise.set_error(Status::Error(400, "Notification sound is too long"));
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && !file_view.is_encrypted()) {
-    CHECK(main_remote_location->is_document());
-    if (main_remote_location->is_web()) {
-      return promise.set_error(Status::Error(400, "Can't use web document as notification sound"));
-    }
-
-    FileId ringtone_file_id = file_view.get_main_file_id();
-    if (file_type != FileType::Ringtone) {
-      if (file_type != FileType::Audio && file_type != FileType::VoiceNote) {
-        return promise.set_error(Status::Error(400, "Unsupported file specified"));
-      }
-      auto &remote = *main_remote_location;
-      ringtone_file_id = td_->file_manager_->register_remote(
-          FullRemoteFileLocation(FileType::Ringtone, remote.get_id(), remote.get_access_hash(), remote.get_dc_id(),
-                                 remote.get_file_reference().str()),
-          FileLocationSource::FromServer, DialogId(), file_view.size(), file_view.expected_size(),
-          file_view.suggested_path());
-    }
-
-    if (file_type != FileType::VoiceNote) {
-      for (auto &saved_ringtone_file_id : saved_ringtone_file_ids_) {
-        if (ringtone_file_id == saved_ringtone_file_id) {
-          return promise.set_value(td_->audios_manager_->get_notification_sound_object(ringtone_file_id));
-        }
-      }
-    }
-
-    send_save_ringtone_query(
-        file_view.get_main_file_id(), false,
-        PromiseCreator::lambda(
-            [actor_id = actor_id(this), file_id = ringtone_file_id, promise = std::move(promise)](
-                Result<telegram_api::object_ptr<telegram_api::account_SavedRingtone>> &&result) mutable {
-              if (result.is_error()) {
-                promise.set_error(result.move_as_error());
-              } else {
-                send_closure(actor_id, &NotificationSettingsManager::on_add_saved_ringtone, file_id,
-                             result.move_as_ok(), std::move(promise));
-              }
-            }));
-    return;
-  }
-
-  file_id = td_->file_manager_->copy_file_id(file_id, FileType::Ringtone, DialogId(), "add_saved_ringtone");
-
-  upload_ringtone({file_id, FileManager::get_internal_upload_id()}, false, std::move(promise));
-}
-
-void NotificationSettingsManager::upload_ringtone(FileUploadId file_upload_id, bool is_reupload,
-                                                  Promise<td_api::object_ptr<td_api::notificationSound>> &&promise,
-                                                  vector<int> bad_parts) {
-  CHECK(file_upload_id.is_valid());
-  LOG(INFO) << "Ask to upload ringtone " << file_upload_id;
-  bool is_inserted =
-      being_uploaded_ringtones_.emplace(file_upload_id, UploadedRingtone{is_reupload, std::move(promise)}).second;
-  CHECK(is_inserted);
-  // TODO use force_reupload if is_reupload
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_ringtone_callback_, 32, 0);
-}
-
-void NotificationSettingsManager::on_upload_ringtone(FileUploadId file_upload_id,
-                                                     telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Ringtone " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_ringtones_.find(file_upload_id);
-  CHECK(it != being_uploaded_ringtones_.end());
-  bool is_reupload = it->second.is_reupload;
-  auto promise = std::move(it->second.promise);
-  being_uploaded_ringtones_.erase(it);
-
-  FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  CHECK(!file_view.is_encrypted());
-  CHECK(file_view.get_type() == FileType::Ringtone);
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (input_file == nullptr && main_remote_location != nullptr) {
-    if (main_remote_location->is_web()) {
-      return promise.set_error(Status::Error(400, "Can't use web document as notification sound"));
-    }
-    if (is_reupload) {
-      return promise.set_error(Status::Error(400, "Failed to reupload the file"));
-    }
-
-    auto main_file_id = file_view.get_main_file_id();
-    send_save_ringtone_query(
-        main_file_id, false,
-        PromiseCreator::lambda(
-            [actor_id = actor_id(this), main_file_id, promise = std::move(promise)](
-                Result<telegram_api::object_ptr<telegram_api::account_SavedRingtone>> &&result) mutable {
-              if (result.is_error()) {
-                promise.set_error(result.move_as_error());
-              } else {
-                send_closure(actor_id, &NotificationSettingsManager::on_add_saved_ringtone, main_file_id,
-                             result.move_as_ok(), std::move(promise));
-              }
-            }));
-    return;
-  }
-  CHECK(input_file != nullptr);
-  CHECK(input_file->get_id() == telegram_api::inputFile::ID);
-  const PathView path_view(static_cast<const telegram_api::inputFile *>(input_file.get())->name_);
-  auto file_name = path_view.file_name().str();
-  auto mime_type = MimeType::from_extension(path_view.extension());
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::Document>> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &NotificationSettingsManager::on_upload_saved_ringtone, result.move_as_ok(),
-                       std::move(promise));
-        }
-      });
-
-  td_->create_handler<UploadRingtoneQuery>(std::move(query_promise))
-      ->send(file_upload_id, std::move(input_file), file_name, mime_type);
-}
-
-void NotificationSettingsManager::on_upload_ringtone_error(FileUploadId file_upload_id, Status status) {
-  LOG(INFO) << "Ringtone " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_ringtones_.find(file_upload_id);
-  CHECK(it != being_uploaded_ringtones_.end());
-  auto promise = std::move(it->second.promise);
-  being_uploaded_ringtones_.erase(it);
-
-  promise.set_error(std::move(status));
-}
-
-void NotificationSettingsManager::on_upload_saved_ringtone(
-    telegram_api::object_ptr<telegram_api::Document> &&saved_ringtone,
-    Promise<td_api::object_ptr<td_api::notificationSound>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  TRY_RESULT_PROMISE(promise, file_id, get_ringtone(std::move(saved_ringtone)));
-
-  reload_saved_ringtones(PromiseCreator::lambda([actor_id = actor_id(this), file_id,
-                                                 promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      send_closure(actor_id, &NotificationSettingsManager::on_add_saved_ringtone, file_id, nullptr, std::move(promise));
-    }
-  }));
-}
-
-void NotificationSettingsManager::on_add_saved_ringtone(
-    FileId file_id, telegram_api::object_ptr<telegram_api::account_SavedRingtone> &&saved_ringtone,
-    Promise<td_api::object_ptr<td_api::notificationSound>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (saved_ringtone != nullptr && saved_ringtone->get_id() == telegram_api::account_savedRingtoneConverted::ID) {
-    auto ringtone = move_tl_object_as<telegram_api::account_savedRingtoneConverted>(saved_ringtone);
-    TRY_RESULT_PROMISE_ASSIGN(promise, file_id, get_ringtone(std::move(ringtone->document_)));
-  } else {
-    for (auto &saved_ringtone_file_id : saved_ringtone_file_ids_) {
-      if (file_id == saved_ringtone_file_id) {
-        return promise.set_value(td_->audios_manager_->get_notification_sound_object(file_id));
-      }
-    }
-    if (saved_ringtone == nullptr) {
-      return promise.set_error(Status::Error(500, "Failed to find saved notification sound"));
-    }
-  }
-
-  reload_saved_ringtones(PromiseCreator::lambda([actor_id = actor_id(this), file_id,
-                                                 promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      send_closure(actor_id, &NotificationSettingsManager::on_add_saved_ringtone, file_id, nullptr, std::move(promise));
-    }
-  }));
-}
-
-void NotificationSettingsManager::remove_saved_ringtone(int64 ringtone_id, Promise<Unit> &&promise) {
-  if (!are_saved_ringtones_loaded_) {
-    load_saved_ringtones(std::move(promise));
-    return;
-  }
-
-  for (auto &file_id : saved_ringtone_file_ids_) {
-    auto file_view = td_->file_manager_->get_file_view(file_id);
-    CHECK(!file_view.empty());
-    CHECK(file_view.get_type() == FileType::Ringtone);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    if (full_remote_location->get_id() == ringtone_id) {
-      send_save_ringtone_query(
-          file_view.get_main_file_id(), true,
-          PromiseCreator::lambda(
-              [actor_id = actor_id(this), ringtone_id, promise = std::move(promise)](
-                  Result<telegram_api::object_ptr<telegram_api::account_SavedRingtone>> &&result) mutable {
-                if (result.is_error()) {
-                  promise.set_error(result.move_as_error());
-                } else {
-                  send_closure(actor_id, &NotificationSettingsManager::on_remove_saved_ringtone, ringtone_id,
-                               std::move(promise));
-                }
-              }));
-      return;
-    }
-  }
-
-  promise.set_value(Unit());
-}
-
-void NotificationSettingsManager::on_remove_saved_ringtone(int64 ringtone_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  CHECK(are_saved_ringtones_loaded_);
-
-  auto max_count = td_->option_manager_->get_option_integer("notification_sound_count_max");
-  if (saved_ringtone_file_ids_.size() >= static_cast<uint64>(max_count)) {
-    // reload all saved ringtones to get ringtones besides the limit
-    return reload_saved_ringtones(PromiseCreator::lambda([promise = std::move(promise)](Result<Unit> &&result) mutable {
-      // ignore errors
-      promise.set_value(Unit());
-    }));
-  }
-
-  for (auto it = saved_ringtone_file_ids_.begin(); it != saved_ringtone_file_ids_.end(); ++it) {
-    auto file_view = td_->file_manager_->get_file_view(*it);
-    CHECK(!file_view.empty());
-    CHECK(file_view.get_type() == FileType::Ringtone);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    if (full_remote_location->get_id() == ringtone_id) {
-      saved_ringtone_file_ids_.erase(it);
-      saved_ringtone_hash_ = 0;
-      on_saved_ringtones_updated(false);
-      break;
-    }
-  }
-
-  promise.set_value(Unit());
-}
-
-Result<FileId> NotificationSettingsManager::get_ringtone(
-    telegram_api::object_ptr<telegram_api::Document> &&ringtone) const {
-  int32 document_id = ringtone->get_id();
-  if (document_id == telegram_api::documentEmpty::ID) {
-    return Status::Error("Receive an empty ringtone");
-  }
-  CHECK(document_id == telegram_api::document::ID);
-
-  auto parsed_document =
-      td_->documents_manager_->on_get_document(move_tl_object_as<telegram_api::document>(ringtone), DialogId(), false,
-                                               nullptr, Document::Type::Audio, DocumentsManager::Subtype::Ringtone);
-  if (parsed_document.type != Document::Type::Audio) {
-    return Status::Error("Receive ringtone of a wrong type");
-  }
-  return parsed_document.file_id;
-}
-
-void NotificationSettingsManager::load_saved_ringtones(Promise<Unit> &&promise) {
-  CHECK(!are_saved_ringtones_loaded_);
-  auto saved_ringtones_string = G()->td_db()->get_binlog_pmc()->get(get_saved_ringtones_database_key());
-  if (saved_ringtones_string.empty()) {
-    return reload_saved_ringtones(std::move(promise));
-  }
-
-  RingtoneListLogEvent saved_ringtones_log_event;
-  bool is_valid = log_event_parse(saved_ringtones_log_event, saved_ringtones_string).is_ok();
-
-  for (auto &ringtone_file_id : saved_ringtones_log_event.ringtone_file_ids_) {
-    if (!ringtone_file_id.is_valid()) {
-      is_valid = false;
-      break;
-    }
-  }
-  if (is_valid) {
-    saved_ringtone_hash_ = saved_ringtones_log_event.hash_;
-    saved_ringtone_file_ids_ = std::move(saved_ringtones_log_event.ringtone_file_ids_);
-    are_saved_ringtones_loaded_ = true;
-
-    if (!saved_ringtone_file_ids_.empty()) {
-      on_saved_ringtones_updated(true);
-    }
-
-    // the promise must not be set synchronously
-    send_closure_later(actor_id(this), &NotificationSettingsManager::on_load_saved_ringtones, std::move(promise));
-    reload_saved_ringtones(Auto());
-  } else {
-    LOG(ERROR) << "Ignore invalid saved notification sounds log event";
-    reload_saved_ringtones(std::move(promise));
-  }
-}
-
-void NotificationSettingsManager::on_load_saved_ringtones(Promise<Unit> &&promise) {
-  promise.set_value(Unit());
-}
-
-void NotificationSettingsManager::reload_saved_ringtones(Promise<Unit> &&promise) {
-  if (!is_active()) {
-    return promise.set_error(Status::Error(400, "Don't need to reload saved notification sounds"));
-  }
-  reload_saved_ringtones_queries_.push_back(std::move(promise));
-  if (reload_saved_ringtones_queries_.size() == 1) {
-    are_saved_ringtones_reloaded_ = true;
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::account_SavedRingtones>> &&result) {
-          send_closure(actor_id, &NotificationSettingsManager::on_reload_saved_ringtones, false, std::move(result));
-        });
-    td_->create_handler<GetSavedRingtonesQuery>(std::move(query_promise))->send(saved_ringtone_hash_);
-  }
-}
-
-void NotificationSettingsManager::repair_saved_ringtones(Promise<Unit> &&promise) {
-  if (!is_active()) {
-    return promise.set_error(Status::Error(400, "Don't need to repair saved notification sounds"));
-  }
-
-  repair_saved_ringtones_queries_.push_back(std::move(promise));
-  if (repair_saved_ringtones_queries_.size() == 1u) {
-    are_saved_ringtones_reloaded_ = true;
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::account_SavedRingtones>> &&result) {
-          send_closure(actor_id, &NotificationSettingsManager::on_reload_saved_ringtones, true, std::move(result));
-        });
-    td_->create_handler<GetSavedRingtonesQuery>(std::move(query_promise))->send(0);
-  }
-}
-
-void NotificationSettingsManager::on_reload_saved_ringtones(
-    bool is_repair, Result<telegram_api::object_ptr<telegram_api::account_SavedRingtones>> &&result) {
-  if (!is_active()) {
-    are_saved_ringtones_loaded_ = true;
-    set_promises(reload_saved_ringtones_queries_);
-    set_promises(repair_saved_ringtones_queries_);
-    return;
-  }
-  if (result.is_error()) {
-    if (is_repair) {
-      fail_promises(repair_saved_ringtones_queries_, result.move_as_error());
-    } else {
-      fail_promises(reload_saved_ringtones_queries_, result.move_as_error());
-      set_timeout_in(Random::fast(60, 120));
-    }
-    return;
-  }
-
-  if (!is_repair) {
-    set_timeout_in(Random::fast(3600, 4800));
-  }
-
-  auto saved_ringtones_ptr = result.move_as_ok();
-  auto constructor_id = saved_ringtones_ptr->get_id();
-  if (constructor_id == telegram_api::account_savedRingtonesNotModified::ID) {
-    if (is_repair) {
-      fail_promises(repair_saved_ringtones_queries_, Status::Error(500, "Failed to repair saved animations"));
-    } else {
-      are_saved_ringtones_loaded_ = true;
-      set_promises(reload_saved_ringtones_queries_);
-    }
-    return;
-  }
-  CHECK(constructor_id == telegram_api::account_savedRingtones::ID);
-  auto saved_ringtones = move_tl_object_as<telegram_api::account_savedRingtones>(saved_ringtones_ptr);
-
-  auto new_hash = saved_ringtones->hash_;
-  vector<FileId> new_saved_ringtone_file_ids;
-
-  for (auto &ringtone : saved_ringtones->ringtones_) {
-    auto r_ringtone = get_ringtone(std::move(ringtone));
-    if (r_ringtone.is_error()) {
-      LOG(ERROR) << r_ringtone.error().message();
-      new_hash = 0;
-      continue;
-    }
-
-    new_saved_ringtone_file_ids.push_back(r_ringtone.move_as_ok());
-  }
-
-  bool need_update = new_saved_ringtone_file_ids != saved_ringtone_file_ids_;
-  are_saved_ringtones_loaded_ = true;
-  if (need_update || saved_ringtone_hash_ != new_hash) {
-    saved_ringtone_hash_ = new_hash;
-    saved_ringtone_file_ids_ = std::move(new_saved_ringtone_file_ids);
-
-    if (need_update) {
-      on_saved_ringtones_updated(false);
-    }
-  }
-  if (is_repair) {
-    set_promises(repair_saved_ringtones_queries_);
-  } else {
-    set_promises(reload_saved_ringtones_queries_);
-  }
-}
-
-td_api::object_ptr<td_api::updateSavedNotificationSounds>
-NotificationSettingsManager::get_update_saved_notification_sounds_object() const {
-  auto ringtone_ids = transform(saved_ringtone_file_ids_, [file_manager = td_->file_manager_.get()](FileId file_id) {
-    auto file_view = file_manager->get_file_view(file_id);
-    CHECK(!file_view.empty());
-    CHECK(file_view.get_type() == FileType::Ringtone);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    return full_remote_location->get_id();
-  });
-  return td_api::make_object<td_api::updateSavedNotificationSounds>(std::move(ringtone_ids));
-}
-
-string NotificationSettingsManager::get_saved_ringtones_database_key() {
-  return "ringtones";
-}
-
-void NotificationSettingsManager::save_saved_ringtones_to_database() const {
-  RingtoneListLogEvent ringtone_list_log_event{saved_ringtone_hash_, saved_ringtone_file_ids_};
-  G()->td_db()->get_binlog_pmc()->set(get_saved_ringtones_database_key(),
-                                      log_event_store(ringtone_list_log_event).as_slice().str());
-}
-
-void NotificationSettingsManager::on_saved_ringtones_updated(bool from_database) {
-  CHECK(are_saved_ringtones_loaded_);
-  vector<FileId> new_sorted_saved_ringtone_file_ids = saved_ringtone_file_ids_;
-  std::sort(new_sorted_saved_ringtone_file_ids.begin(), new_sorted_saved_ringtone_file_ids.end());
-  if (new_sorted_saved_ringtone_file_ids != sorted_saved_ringtone_file_ids_) {
-    td_->file_manager_->change_files_source(get_saved_ringtones_file_source_id(), sorted_saved_ringtone_file_ids_,
-                                            new_sorted_saved_ringtone_file_ids, "on_saved_ringtones_updated");
-    sorted_saved_ringtone_file_ids_ = std::move(new_sorted_saved_ringtone_file_ids);
-  }
-
-  if (!from_database) {
-    save_saved_ringtones_to_database();
-  }
-
-  send_closure(G()->td(), &Td::send_update, get_update_saved_notification_sounds_object());
-}
-
-FileSourceId NotificationSettingsManager::get_saved_ringtones_file_source_id() {
-  if (!saved_ringtones_file_source_id_.is_valid()) {
-    saved_ringtones_file_source_id_ = td_->file_reference_manager_->create_saved_ringtones_file_source();
-  }
-  return saved_ringtones_file_source_id_;
-}
-
-void NotificationSettingsManager::send_get_dialog_notification_settings_query(DialogId dialog_id,
-                                                                              MessageId top_thread_message_id,
-                                                                              Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Can't get notification settings for " << dialog_id;
-    return promise.set_error(Status::Error(500, "Wrong getDialogNotificationSettings query"));
-  }
-  TRY_STATUS_PROMISE(promise,
-                     td_->dialog_manager_->check_dialog_access_in_memory(dialog_id, false, AccessRights::Read));
-
-  auto &promises = get_dialog_notification_settings_queries_[{dialog_id, top_thread_message_id}];
-  promises.push_back(std::move(promise));
-  if (promises.size() != 1) {
-    // query has already been sent, just wait for the result
-    return;
-  }
-
-  td_->create_handler<GetDialogNotifySettingsQuery>()->send(dialog_id, top_thread_message_id);
-}
-
-const ScopeNotificationSettings *NotificationSettingsManager::get_scope_notification_settings(
-    NotificationSettingsScope scope, Promise<Unit> &&promise) {
-  const ScopeNotificationSettings *notification_settings = get_scope_notification_settings(scope);
-  CHECK(notification_settings != nullptr);
-  if (!notification_settings->is_synchronized && !td_->auth_manager_->is_bot()) {
-    send_get_scope_notification_settings_query(scope, std::move(promise));
-    return nullptr;
-  }
-
-  promise.set_value(Unit());
-  return notification_settings;
-}
-
-void NotificationSettingsManager::send_get_scope_notification_settings_query(NotificationSettingsScope scope,
-                                                                             Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Can't get notification settings for " << scope;
-    return promise.set_error(Status::Error(500, "Wrong getScopeNotificationSettings query"));
-  }
-
-  td_->create_handler<GetScopeNotifySettingsQuery>(std::move(promise))->send(scope);
-}
-
-void NotificationSettingsManager::on_get_dialog_notification_settings_query_finished(DialogId dialog_id,
-                                                                                     MessageId top_thread_message_id,
-                                                                                     Status &&status) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto it = get_dialog_notification_settings_queries_.find({dialog_id, top_thread_message_id});
-  CHECK(it != get_dialog_notification_settings_queries_.end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  get_dialog_notification_settings_queries_.erase(it);
-
-  if (status.is_ok()) {
-    set_promises(promises);
-  } else {
-    fail_promises(promises, std::move(status));
-  }
-}
-
-void NotificationSettingsManager::update_dialog_notify_settings(DialogId dialog_id, MessageId top_thread_message_id,
-                                                                const DialogNotificationSettings &new_settings,
-                                                                Promise<Unit> &&promise) {
-  td_->create_handler<UpdateDialogNotifySettingsQuery>(std::move(promise))
-      ->send(dialog_id, top_thread_message_id, new_settings);
-}
-
-Status NotificationSettingsManager::set_scope_notification_settings(
-    NotificationSettingsScope scope, td_api::object_ptr<td_api::scopeNotificationSettings> &&notification_settings) {
-  CHECK(!td_->auth_manager_->is_bot());
-  auto *current_settings = get_scope_notification_settings(scope);
-  CHECK(current_settings != nullptr);
-  TRY_RESULT(new_settings, ::td::get_scope_notification_settings(std::move(notification_settings)));
-  if (is_notification_sound_default(current_settings->sound) && is_notification_sound_default(new_settings.sound)) {
-    new_settings.sound = dup_notification_sound(current_settings->sound);
-  }
-  if (update_scope_notification_settings(scope, current_settings, std::move(new_settings))) {
-    update_scope_notification_settings_on_server(scope, 0);
-  }
-  return Status::OK();
-}
-
-class NotificationSettingsManager::UpdateScopeNotificationSettingsOnServerLogEvent {
- public:
-  NotificationSettingsScope scope_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(scope_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(scope_, parser);
-  }
-};
-
-uint64 NotificationSettingsManager::save_update_scope_notification_settings_on_server_log_event(
-    NotificationSettingsScope scope) {
-  UpdateScopeNotificationSettingsOnServerLogEvent log_event{scope};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::UpdateScopeNotificationSettingsOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void NotificationSettingsManager::update_scope_notification_settings_on_server(NotificationSettingsScope scope,
-                                                                               uint64 log_event_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (log_event_id == 0) {
-    log_event_id = save_update_scope_notification_settings_on_server_log_event(scope);
-  }
-
-  LOG(INFO) << "Update " << scope << " notification settings on server with log_event " << log_event_id;
-  td_->create_handler<UpdateScopeNotifySettingsQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(scope, *get_scope_notification_settings(scope));
-}
-
-Status NotificationSettingsManager::set_reaction_notification_settings(
-    ReactionNotificationSettings &&notification_settings) {
-  CHECK(!td_->auth_manager_->is_bot());
-  notification_settings.update_default_notification_sound(reaction_notification_settings_);
-  if (notification_settings == reaction_notification_settings_) {
-    have_reaction_notification_settings_ = true;
-    return Status::OK();
-  }
-
-  VLOG(notifications) << "Update reaction notification settings from " << reaction_notification_settings_ << " to "
-                      << notification_settings;
-
-  reaction_notification_settings_ = std::move(notification_settings);
-  have_reaction_notification_settings_ = true;
-
-  save_reaction_notification_settings();
-
-  send_closure(G()->td(), &Td::send_update, get_update_reaction_notification_settings_object());
-
-  update_reaction_notification_settings_on_server(0);
-  return Status::OK();
-}
-
-class NotificationSettingsManager::UpdateReactionNotificationSettingsOnServerLogEvent {
- public:
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    END_STORE_FLAGS();
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    END_PARSE_FLAGS();
-  }
-};
-
-uint64 NotificationSettingsManager::save_update_reaction_notification_settings_on_server_log_event() {
-  UpdateReactionNotificationSettingsOnServerLogEvent log_event;
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::UpdateReactionNotificationSettingsOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void NotificationSettingsManager::update_reaction_notification_settings_on_server(uint64 log_event_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (log_event_id == 0) {
-    log_event_id = save_update_reaction_notification_settings_on_server_log_event();
-  }
-
-  LOG(INFO) << "Update reaction notification settings on server with log_event " << log_event_id;
-  td_->create_handler<SetReactionsNotifySettingsQuery>(get_erase_log_event_promise(log_event_id))
-      ->send(reaction_notification_settings_);
-}
-
-void NotificationSettingsManager::get_notify_settings_exceptions(NotificationSettingsScope scope, bool filter_scope,
-                                                                 bool compare_sound, Promise<Unit> &&promise) {
-  td_->create_handler<GetNotifySettingsExceptionsQuery>(std::move(promise))->send(scope, filter_scope, compare_sound);
-}
-
-void NotificationSettingsManager::get_story_notification_settings_exceptions(
-    Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  td_->create_handler<GetStoryNotifySettingsExceptionsQuery>(std::move(promise))->send();
-}
-
-void NotificationSettingsManager::reset_all_notification_settings() {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  td_->messages_manager_->reset_all_dialog_notification_settings();
-
-  reset_scope_notification_settings();
-
-  reset_all_notification_settings_on_server(0);
-}
-
-class NotificationSettingsManager::ResetAllNotificationSettingsOnServerLogEvent {
- public:
-  template <class StorerT>
-  void store(StorerT &storer) const {
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-  }
-};
-
-uint64 NotificationSettingsManager::save_reset_all_notification_settings_on_server_log_event() {
-  ResetAllNotificationSettingsOnServerLogEvent log_event;
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ResetAllNotificationSettingsOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void NotificationSettingsManager::reset_all_notification_settings_on_server(uint64 log_event_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (log_event_id == 0) {
-    log_event_id = save_reset_all_notification_settings_on_server_log_event();
-  }
-
-  LOG(INFO) << "Reset all notification settings";
-  td_->create_handler<ResetNotifySettingsQuery>(get_erase_log_event_promise(log_event_id))->send();
-}
-
-void NotificationSettingsManager::on_binlog_events(vector<BinlogEvent> &&events) {
-  if (G()->close_flag()) {
-    return;
-  }
-  for (auto &event : events) {
-    CHECK(event.id_ != 0);
-    switch (event.type_) {
-      case LogEvent::HandlerType::ResetAllNotificationSettingsOnServer: {
-        ResetAllNotificationSettingsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        reset_all_notification_settings_on_server(event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::UpdateScopeNotificationSettingsOnServer: {
-        UpdateScopeNotificationSettingsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        update_scope_notification_settings_on_server(log_event.scope_, event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::UpdateReactionNotificationSettingsOnServer: {
-        UpdateReactionNotificationSettingsOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        update_reaction_notification_settings_on_server(event.id_);
-        break;
-      }
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  }
-}
-
-void NotificationSettingsManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  for (auto scope :
-       {NotificationSettingsScope::Private, NotificationSettingsScope::Group, NotificationSettingsScope::Channel}) {
-    auto current_settings = get_scope_notification_settings(scope);
-    CHECK(current_settings != nullptr);
-    if (current_settings->is_synchronized) {
-      updates.push_back(get_update_scope_notification_settings_object(scope));
-    }
-  }
-
-  updates.push_back(get_update_reaction_notification_settings_object());
-
-  if (are_saved_ringtones_loaded_) {
-    updates.push_back(get_update_saved_notification_sounds_object());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationSettingsManager.h b/third-party/td/td/td/telegram/NotificationSettingsManager.h
deleted file mode 100644
index c44cea5bee..0000000000
--- a/third-party/td/td/td/telegram/NotificationSettingsManager.h
+++ /dev/null
@@ -1,259 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogNotificationSettings.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/NotificationSettingsScope.h"
-#include "td/telegram/ReactionNotificationSettings.h"
-#include "td/telegram/ScopeNotificationSettings.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-struct BinlogEvent;
-
-class NotificationSound;
-
-class Td;
-
-class NotificationSettingsManager final : public Actor {
- public:
-  NotificationSettingsManager(Td *td, ActorShared<> parent);
-  NotificationSettingsManager(const NotificationSettingsManager &) = delete;
-  NotificationSettingsManager &operator=(const NotificationSettingsManager &) = delete;
-  NotificationSettingsManager(NotificationSettingsManager &&) = delete;
-  NotificationSettingsManager &operator=(NotificationSettingsManager &&) = delete;
-  ~NotificationSettingsManager() final;
-
-  int32 get_scope_mute_until(NotificationSettingsScope scope) const;
-
-  std::pair<bool, bool> get_scope_mute_stories(NotificationSettingsScope scope) const;
-
-  const unique_ptr<NotificationSound> &get_scope_notification_sound(NotificationSettingsScope scope) const;
-
-  const unique_ptr<NotificationSound> &get_scope_story_notification_sound(NotificationSettingsScope scope) const;
-
-  bool get_scope_show_preview(NotificationSettingsScope scope) const;
-
-  bool get_scope_hide_story_sender(NotificationSettingsScope scope) const;
-
-  bool get_scope_disable_pinned_message_notifications(NotificationSettingsScope scope) const;
-
-  bool get_scope_disable_mention_notifications(NotificationSettingsScope scope) const;
-
-  tl_object_ptr<telegram_api::InputNotifyPeer> get_input_notify_peer(DialogId dialog_id,
-                                                                     MessageId top_thread_message_id) const;
-
-  void on_update_scope_notify_settings(NotificationSettingsScope scope,
-                                       tl_object_ptr<telegram_api::peerNotifySettings> &&peer_notify_settings);
-
-  void on_update_reaction_notification_settings(ReactionNotificationSettings reaction_notification_settings);
-
-  void add_saved_ringtone(td_api::object_ptr<td_api::InputFile> &&input_file,
-                          Promise<td_api::object_ptr<td_api::notificationSound>> &&promise);
-
-  FileId get_saved_ringtone(int64 ringtone_id, Promise<Unit> &&promise);
-
-  vector<FileId> get_saved_ringtones(Promise<Unit> &&promise);
-
-  void remove_saved_ringtone(int64 ringtone_id, Promise<Unit> &&promise);
-
-  void reload_saved_ringtones(Promise<Unit> &&promise);
-
-  void repair_saved_ringtones(Promise<Unit> &&promise);
-
-  FileSourceId get_saved_ringtones_file_source_id();
-
-  void send_save_ringtone_query(FileId ringtone_file_id, bool unsave,
-                                Promise<telegram_api::object_ptr<telegram_api::account_SavedRingtone>> &&promise);
-
-  void send_get_dialog_notification_settings_query(DialogId dialog_id, MessageId top_thread_message_id,
-                                                   Promise<Unit> &&promise);
-
-  const ScopeNotificationSettings *get_scope_notification_settings(NotificationSettingsScope scope,
-                                                                   Promise<Unit> &&promise);
-  void send_get_scope_notification_settings_query(NotificationSettingsScope scope, Promise<Unit> &&promise);
-
-  void send_get_reaction_notification_settings_query(Promise<Unit> &&promise);
-
-  void on_get_dialog_notification_settings_query_finished(DialogId dialog_id, MessageId top_thread_message_id,
-                                                          Status &&status);
-
-  void update_dialog_notify_settings(DialogId dialog_id, MessageId top_thread_message_id,
-                                     const DialogNotificationSettings &new_settings, Promise<Unit> &&promise);
-
-  Status set_scope_notification_settings(NotificationSettingsScope scope,
-                                         td_api::object_ptr<td_api::scopeNotificationSettings> &&notification_settings)
-      TD_WARN_UNUSED_RESULT;
-
-  Status set_reaction_notification_settings(ReactionNotificationSettings &&notification_settings) TD_WARN_UNUSED_RESULT;
-
-  void reset_all_notification_settings();
-
-  void get_notify_settings_exceptions(NotificationSettingsScope scope, bool filter_scope, bool compare_sound,
-                                      Promise<Unit> &&promise);
-
-  void get_story_notification_settings_exceptions(Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void init();
-
-  void on_binlog_events(vector<BinlogEvent> &&events);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  class ResetAllNotificationSettingsOnServerLogEvent;
-  class UpdateScopeNotificationSettingsOnServerLogEvent;
-  class UpdateReactionNotificationSettingsOnServerLogEvent;
-
-  class RingtoneListLogEvent;
-
-  class UploadRingtoneCallback;
-
-  void start_up() final;
-
-  void tear_down() final;
-
-  void timeout_expired() final;
-
-  bool is_active() const;
-
-  static void on_scope_unmute_timeout_callback(void *notification_settings_manager_ptr, int64 scope_int);
-
-  Result<FileId> get_ringtone(telegram_api::object_ptr<telegram_api::Document> &&ringtone) const;
-
-  void upload_ringtone(FileUploadId file_upload_id, bool is_reupload,
-                       Promise<td_api::object_ptr<td_api::notificationSound>> &&promise, vector<int> bad_parts = {});
-
-  void on_upload_ringtone(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_ringtone_error(FileUploadId file_upload_id, Status status);
-
-  void on_upload_saved_ringtone(telegram_api::object_ptr<telegram_api::Document> &&saved_ringtone,
-                                Promise<td_api::object_ptr<td_api::notificationSound>> &&promise);
-
-  void on_add_saved_ringtone(FileId file_id,
-                             telegram_api::object_ptr<telegram_api::account_SavedRingtone> &&saved_ringtone,
-                             Promise<td_api::object_ptr<td_api::notificationSound>> &&promise);
-
-  void on_remove_saved_ringtone(int64 ringtone_id, Promise<Unit> &&promise);
-
-  void on_reload_saved_ringtones(bool is_repair,
-                                 Result<telegram_api::object_ptr<telegram_api::account_SavedRingtones>> &&result);
-
-  static string get_saved_ringtones_database_key();
-
-  void load_saved_ringtones(Promise<Unit> &&promise);
-
-  void on_load_saved_ringtones(Promise<Unit> &&promise);
-
-  void save_saved_ringtones_to_database() const;
-
-  void on_saved_ringtones_updated(bool from_database);
-
-  ScopeNotificationSettings *get_scope_notification_settings(NotificationSettingsScope scope);
-
-  const ScopeNotificationSettings *get_scope_notification_settings(NotificationSettingsScope scope) const;
-
-  td_api::object_ptr<td_api::updateScopeNotificationSettings> get_update_scope_notification_settings_object(
-      NotificationSettingsScope scope) const;
-
-  td_api::object_ptr<td_api::updateReactionNotificationSettings> get_update_reaction_notification_settings_object()
-      const;
-
-  td_api::object_ptr<td_api::updateSavedNotificationSounds> get_update_saved_notification_sounds_object() const;
-
-  void on_scope_unmute(NotificationSettingsScope scope);
-
-  static string get_notification_settings_scope_database_key(NotificationSettingsScope scope);
-
-  static void save_scope_notification_settings(NotificationSettingsScope scope,
-                                               const ScopeNotificationSettings &new_settings);
-
-  bool update_scope_notification_settings(NotificationSettingsScope scope, ScopeNotificationSettings *current_settings,
-                                          ScopeNotificationSettings &&new_settings);
-
-  static uint64 save_update_scope_notification_settings_on_server_log_event(NotificationSettingsScope scope);
-
-  void update_scope_notification_settings_on_server(NotificationSettingsScope scope, uint64 log_event_id);
-
-  void schedule_scope_unmute(NotificationSettingsScope scope, int32 mute_until, int32 unix_time);
-
-  void update_scope_unmute_timeout(NotificationSettingsScope scope, int32 &old_mute_until, int32 new_mute_until);
-
-  static string get_reaction_notification_settings_database_key();
-
-  void save_reaction_notification_settings() const;
-
-  uint64 save_update_reaction_notification_settings_on_server_log_event();
-
-  void update_reaction_notification_settings_on_server(uint64 log_event_id);
-
-  void reset_scope_notification_settings();
-
-  void reset_all_notification_settings_on_server(uint64 log_event_id);
-
-  static uint64 save_reset_all_notification_settings_on_server_log_event();
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  bool is_inited_ = false;
-  bool are_saved_ringtones_loaded_ = false;
-  bool are_saved_ringtones_reloaded_ = false;
-
-  ScopeNotificationSettings users_notification_settings_;
-  ScopeNotificationSettings chats_notification_settings_;
-  ScopeNotificationSettings channels_notification_settings_;
-
-  ReactionNotificationSettings reaction_notification_settings_;
-  bool have_reaction_notification_settings_ = false;
-
-  MultiTimeout scope_unmute_timeout_{"ScopeUnmuteTimeout"};
-
-  int64 saved_ringtone_hash_ = 0;
-  vector<FileId> saved_ringtone_file_ids_;
-  vector<FileId> sorted_saved_ringtone_file_ids_;
-  FileSourceId saved_ringtones_file_source_id_;
-
-  std::shared_ptr<UploadRingtoneCallback> upload_ringtone_callback_;
-
-  struct UploadedRingtone {
-    bool is_reupload;
-    Promise<td_api::object_ptr<td_api::notificationSound>> promise;
-
-    UploadedRingtone(bool is_reupload, Promise<td_api::object_ptr<td_api::notificationSound>> promise)
-        : is_reupload(is_reupload), promise(std::move(promise)) {
-    }
-  };
-  FlatHashMap<FileUploadId, UploadedRingtone, FileUploadIdHash> being_uploaded_ringtones_;
-
-  vector<Promise<Unit>> reload_saved_ringtones_queries_;
-  vector<Promise<Unit>> repair_saved_ringtones_queries_;
-
-  FlatHashMap<MessageFullId, vector<Promise<Unit>>, MessageFullIdHash> get_dialog_notification_settings_queries_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationSettingsScope.cpp b/third-party/td/td/td/telegram/NotificationSettingsScope.cpp
deleted file mode 100644
index c469582243..0000000000
--- a/third-party/td/td/td/telegram/NotificationSettingsScope.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/NotificationSettingsScope.h"
-
-namespace td {
-
-StringBuilder &operator<<(StringBuilder &string_builder, NotificationSettingsScope scope) {
-  switch (scope) {
-    case NotificationSettingsScope::Private:
-      return string_builder << "notification settings for private chats";
-    case NotificationSettingsScope::Group:
-      return string_builder << "notification settings for group chats";
-    case NotificationSettingsScope::Channel:
-      return string_builder << "notification settings for channel chats";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-td_api::object_ptr<td_api::NotificationSettingsScope> get_notification_settings_scope_object(
-    NotificationSettingsScope scope) {
-  switch (scope) {
-    case NotificationSettingsScope::Private:
-      return td_api::make_object<td_api::notificationSettingsScopePrivateChats>();
-    case NotificationSettingsScope::Group:
-      return td_api::make_object<td_api::notificationSettingsScopeGroupChats>();
-    case NotificationSettingsScope::Channel:
-      return td_api::make_object<td_api::notificationSettingsScopeChannelChats>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::InputNotifyPeer> get_input_notify_peer(NotificationSettingsScope scope) {
-  switch (scope) {
-    case NotificationSettingsScope::Private:
-      return telegram_api::make_object<telegram_api::inputNotifyUsers>();
-    case NotificationSettingsScope::Group:
-      return telegram_api::make_object<telegram_api::inputNotifyChats>();
-    case NotificationSettingsScope::Channel:
-      return telegram_api::make_object<telegram_api::inputNotifyBroadcasts>();
-    default:
-      return nullptr;
-  }
-}
-
-NotificationSettingsScope get_notification_settings_scope(
-    const td_api::object_ptr<td_api::NotificationSettingsScope> &scope) {
-  CHECK(scope != nullptr);
-  switch (scope->get_id()) {
-    case td_api::notificationSettingsScopePrivateChats::ID:
-      return NotificationSettingsScope::Private;
-    case td_api::notificationSettingsScopeGroupChats::ID:
-      return NotificationSettingsScope::Group;
-    case td_api::notificationSettingsScopeChannelChats::ID:
-      return NotificationSettingsScope::Channel;
-    default:
-      UNREACHABLE();
-      return NotificationSettingsScope::Private;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationSettingsScope.h b/third-party/td/td/td/telegram/NotificationSettingsScope.h
deleted file mode 100644
index b7601d5151..0000000000
--- a/third-party/td/td/td/telegram/NotificationSettingsScope.h
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class NotificationSettingsScope : int32 { Private, Group, Channel };
-
-StringBuilder &operator<<(StringBuilder &string_builder, NotificationSettingsScope scope);
-
-td_api::object_ptr<td_api::NotificationSettingsScope> get_notification_settings_scope_object(
-    NotificationSettingsScope scope);
-
-telegram_api::object_ptr<telegram_api::InputNotifyPeer> get_input_notify_peer(NotificationSettingsScope scope);
-
-NotificationSettingsScope get_notification_settings_scope(
-    const td_api::object_ptr<td_api::NotificationSettingsScope> &scope);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationSound.cpp b/third-party/td/td/td/telegram/NotificationSound.cpp
deleted file mode 100644
index 46d7d4e44e..0000000000
--- a/third-party/td/td/td/telegram/NotificationSound.cpp
+++ /dev/null
@@ -1,316 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/NotificationSound.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class NotificationSoundNone final : public NotificationSound {
- public:
-  NotificationSoundNone() = default;
-
-  NotificationSoundType get_type() const final {
-    return NotificationSoundType::None;
-  }
-};
-
-class NotificationSoundLocal final : public NotificationSound {
- public:
-  string title_;
-  string data_;
-
-  NotificationSoundLocal() = default;
-  NotificationSoundLocal(string title, string data) : title_(std::move(title)), data_(std::move(data)) {
-  }
-
-  NotificationSoundType get_type() const final {
-    return NotificationSoundType::Local;
-  }
-};
-
-class NotificationSoundRingtone final : public NotificationSound {
- public:
-  int64 ringtone_id_;
-
-  NotificationSoundRingtone() = default;
-  explicit NotificationSoundRingtone(int64 ringtone_id) : ringtone_id_(ringtone_id) {
-  }
-
-  NotificationSoundType get_type() const final {
-    return NotificationSoundType::Ringtone;
-  }
-};
-
-template <class StorerT>
-static void store(const NotificationSound *notification_sound, StorerT &storer) {
-  CHECK(notification_sound != nullptr);
-
-  auto sound_type = notification_sound->get_type();
-  store(sound_type, storer);
-
-  switch (sound_type) {
-    case NotificationSoundType::None:
-      break;
-    case NotificationSoundType::Local: {
-      const auto *sound = static_cast<const NotificationSoundLocal *>(notification_sound);
-      store(sound->title_, storer);
-      store(sound->data_, storer);
-      break;
-    }
-    case NotificationSoundType::Ringtone: {
-      const auto *sound = static_cast<const NotificationSoundRingtone *>(notification_sound);
-      store(sound->ringtone_id_, storer);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-template <class ParserT>
-static void parse(unique_ptr<NotificationSound> &notification_sound, ParserT &parser) {
-  NotificationSoundType sound_type;
-  parse(sound_type, parser);
-
-  switch (sound_type) {
-    case NotificationSoundType::None:
-      notification_sound = make_unique<NotificationSoundNone>();
-      break;
-    case NotificationSoundType::Local: {
-      auto sound = make_unique<NotificationSoundLocal>();
-      parse(sound->title_, parser);
-      parse(sound->data_, parser);
-      notification_sound = std::move(sound);
-      break;
-    }
-    case NotificationSoundType::Ringtone: {
-      auto sound = make_unique<NotificationSoundRingtone>();
-      parse(sound->ringtone_id_, parser);
-      notification_sound = std::move(sound);
-      break;
-    }
-    default:
-      LOG(FATAL) << "Have unknown notification sound type " << static_cast<int32>(sound_type);
-  }
-}
-
-void store_notification_sound(const NotificationSound *notification_sound, LogEventStorerCalcLength &storer) {
-  store(notification_sound, storer);
-}
-
-void store_notification_sound(const NotificationSound *notification_sound, LogEventStorerUnsafe &storer) {
-  store(notification_sound, storer);
-}
-
-void parse_notification_sound(unique_ptr<NotificationSound> &notification_sound, LogEventParser &parser) {
-  parse(notification_sound, parser);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<NotificationSound> &notification_sound) {
-  if (notification_sound == nullptr) {
-    return string_builder << "DefaultSound";
-  }
-  switch (notification_sound->get_type()) {
-    case NotificationSoundType::None:
-      return string_builder << "NoSound";
-    case NotificationSoundType::Local: {
-      const auto *sound = static_cast<const NotificationSoundLocal *>(notification_sound.get());
-      return string_builder << "LocalSound[" << sound->title_ << '|' << sound->data_ << ']';
-    }
-    case NotificationSoundType::Ringtone: {
-      const auto *sound = static_cast<const NotificationSoundRingtone *>(notification_sound.get());
-      return string_builder << "Ringtone[" << sound->ringtone_id_ << ']';
-    }
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-bool is_notification_sound_default(const unique_ptr<NotificationSound> &notification_sound) {
-  if (notification_sound == nullptr) {
-    return true;
-  }
-  return notification_sound->get_type() == NotificationSoundType::Local;
-}
-
-bool are_equivalent_notification_sounds(const unique_ptr<NotificationSound> &lhs,
-                                        const unique_ptr<NotificationSound> &rhs) {
-  if (is_notification_sound_default(lhs)) {
-    return is_notification_sound_default(rhs);
-  }
-  if (is_notification_sound_default(rhs)) {
-    return false;
-  }
-
-  auto sound_type = lhs->get_type();
-  if (sound_type != rhs->get_type()) {
-    return false;
-  }
-
-  switch (sound_type) {
-    case NotificationSoundType::None:
-      return true;
-    case NotificationSoundType::Ringtone:
-      return static_cast<const NotificationSoundRingtone *>(lhs.get())->ringtone_id_ ==
-             static_cast<const NotificationSoundRingtone *>(rhs.get())->ringtone_id_;
-    case NotificationSoundType::Local:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return false;
-}
-
-bool are_different_equivalent_notification_sounds(const unique_ptr<NotificationSound> &lhs,
-                                                  const unique_ptr<NotificationSound> &rhs) {
-  if (lhs == nullptr) {
-    return rhs != nullptr && rhs->get_type() == NotificationSoundType::Local;
-  }
-  if (rhs == nullptr) {
-    return lhs->get_type() == NotificationSoundType::Local;
-  }
-  if (lhs->get_type() != NotificationSoundType::Local || rhs->get_type() != NotificationSoundType::Local) {
-    return false;
-  }
-
-  const auto *lhs_local = static_cast<const NotificationSoundLocal *>(lhs.get());
-  const auto *rhs_local = static_cast<const NotificationSoundLocal *>(rhs.get());
-  return lhs_local->title_ != rhs_local->title_ || lhs_local->data_ != rhs_local->data_;
-}
-
-int64 get_notification_sound_ringtone_id(const unique_ptr<NotificationSound> &notification_sound) {
-  if (notification_sound == nullptr) {
-    return -1;
-  }
-  switch (notification_sound->get_type()) {
-    case NotificationSoundType::None:
-      return 0;
-    case NotificationSoundType::Local:
-      return -1;
-    case NotificationSoundType::Ringtone: {
-      return static_cast<const NotificationSoundRingtone *>(notification_sound.get())->ringtone_id_;
-      default:
-        UNREACHABLE();
-        return -1;
-    }
-  }
-}
-
-unique_ptr<NotificationSound> get_legacy_notification_sound(const string &sound) {
-  if (sound == "default") {
-    return nullptr;
-  }
-  if (sound.empty()) {
-    return make_unique<NotificationSoundNone>();
-  }
-  return td::make_unique<NotificationSoundLocal>(sound, sound);
-}
-
-unique_ptr<NotificationSound> get_notification_sound(bool use_default_sound, int64 ringtone_id) {
-  if (use_default_sound || ringtone_id == -1) {
-    return nullptr;
-  }
-  if (ringtone_id == 0) {
-    return make_unique<NotificationSoundNone>();
-  }
-  return td::make_unique<NotificationSoundRingtone>(ringtone_id);
-}
-
-unique_ptr<NotificationSound> get_notification_sound(telegram_api::NotificationSound *notification_sound) {
-  if (notification_sound == nullptr) {
-    return nullptr;
-  }
-
-  switch (notification_sound->get_id()) {
-    case telegram_api::notificationSoundDefault::ID:
-      return nullptr;
-    case telegram_api::notificationSoundNone::ID:
-      return make_unique<NotificationSoundNone>();
-    case telegram_api::notificationSoundLocal::ID: {
-      const auto *sound = static_cast<telegram_api::notificationSoundLocal *>(notification_sound);
-      return td::make_unique<NotificationSoundLocal>(std::move(sound->title_), std::move(sound->data_));
-    }
-    case telegram_api::notificationSoundRingtone::ID: {
-      const auto *sound = static_cast<telegram_api::notificationSoundRingtone *>(notification_sound);
-      if (sound->id_ == 0 || sound->id_ == -1) {
-        LOG(ERROR) << "Receive ringtone with ID = " << sound->id_;
-        return make_unique<NotificationSoundNone>();
-      }
-      return td::make_unique<NotificationSoundRingtone>(sound->id_);
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-unique_ptr<NotificationSound> get_notification_sound(telegram_api::peerNotifySettings *settings, bool for_stories) {
-  CHECK(settings != nullptr);
-  telegram_api::NotificationSound *sound =
-#if TD_ANDROID
-      for_stories ? settings->stories_android_sound_.get() : settings->android_sound_.get();
-#elif TD_DARWIN_IOS || TD_DARWIN_TV_OS || TD_DARWIN_VISION_OS || TD_DARWIN_WATCH_OS || TD_DARWIN_UNKNOWN
-      for_stories ? settings->stories_ios_sound_.get() : settings->ios_sound_.get();
-#else
-      for_stories ? settings->stories_other_sound_.get() : settings->other_sound_.get();
-#endif
-  return get_notification_sound(sound);
-}
-
-telegram_api::object_ptr<telegram_api::NotificationSound> get_input_notification_sound(
-    const unique_ptr<NotificationSound> &notification_sound, bool return_non_null) {
-  if (notification_sound == nullptr) {
-    if (return_non_null) {
-      return telegram_api::make_object<telegram_api::notificationSoundDefault>();
-    }
-    return nullptr;
-  }
-
-  // must not return nullptr if notification_sound != nullptr
-  switch (notification_sound->get_type()) {
-    case NotificationSoundType::None:
-      return telegram_api::make_object<telegram_api::notificationSoundNone>();
-    case NotificationSoundType::Local: {
-      const auto *sound = static_cast<const NotificationSoundLocal *>(notification_sound.get());
-      return telegram_api::make_object<telegram_api::notificationSoundLocal>(sound->title_, sound->data_);
-    }
-    case NotificationSoundType::Ringtone: {
-      const auto *sound = static_cast<const NotificationSoundRingtone *>(notification_sound.get());
-      return telegram_api::make_object<telegram_api::notificationSoundRingtone>(sound->ringtone_id_);
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-unique_ptr<NotificationSound> dup_notification_sound(const unique_ptr<NotificationSound> &notification_sound) {
-  if (notification_sound == nullptr) {
-    return nullptr;
-  }
-
-  switch (notification_sound->get_type()) {
-    case NotificationSoundType::None:
-      return make_unique<NotificationSoundNone>();
-    case NotificationSoundType::Local: {
-      const auto *sound = static_cast<const NotificationSoundLocal *>(notification_sound.get());
-      return td::make_unique<NotificationSoundLocal>(sound->title_, sound->data_);
-    }
-    case NotificationSoundType::Ringtone: {
-      const auto *sound = static_cast<const NotificationSoundRingtone *>(notification_sound.get());
-      return td::make_unique<NotificationSoundRingtone>(sound->ringtone_id_);
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationSound.h b/third-party/td/td/td/telegram/NotificationSound.h
deleted file mode 100644
index 0618195a91..0000000000
--- a/third-party/td/td/td/telegram/NotificationSound.h
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/NotificationSoundType.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class NotificationSound {
- public:
-  NotificationSound() = default;
-  NotificationSound(const NotificationSound &) = delete;
-  NotificationSound &operator=(const NotificationSound &) = delete;
-  NotificationSound(NotificationSound &&) = delete;
-  NotificationSound &operator=(NotificationSound &&) = delete;
-
-  virtual NotificationSoundType get_type() const = 0;
-  virtual ~NotificationSound() = default;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<NotificationSound> &notification_sound);
-
-void store_notification_sound(const NotificationSound *notification_sound, LogEventStorerCalcLength &storer);
-
-void store_notification_sound(const NotificationSound *notification_sound, LogEventStorerUnsafe &storer);
-
-template <class StorerT>
-void NotificationSound::store(StorerT &storer) const {
-  store_notification_sound(this, storer);
-}
-
-void parse_notification_sound(unique_ptr<NotificationSound> &notification_sound, LogEventParser &parser);
-
-bool is_notification_sound_default(const unique_ptr<NotificationSound> &notification_sound);
-
-bool are_equivalent_notification_sounds(const unique_ptr<NotificationSound> &lhs,
-                                        const unique_ptr<NotificationSound> &rhs);
-
-bool are_different_equivalent_notification_sounds(const unique_ptr<NotificationSound> &lhs,
-                                                  const unique_ptr<NotificationSound> &rhs);
-
-int64 get_notification_sound_ringtone_id(const unique_ptr<NotificationSound> &notification_sound);
-
-unique_ptr<NotificationSound> get_legacy_notification_sound(const string &sound);
-
-unique_ptr<NotificationSound> get_notification_sound(telegram_api::NotificationSound *notification_sound);
-
-unique_ptr<NotificationSound> get_notification_sound(bool use_default_sound, int64 ringtone_id);
-
-unique_ptr<NotificationSound> get_notification_sound(telegram_api::peerNotifySettings *settings, bool for_stories);
-
-telegram_api::object_ptr<telegram_api::NotificationSound> get_input_notification_sound(
-    const unique_ptr<NotificationSound> &notification_sound, bool return_non_null = false);
-
-unique_ptr<NotificationSound> dup_notification_sound(const unique_ptr<NotificationSound> &notification_sound);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationSoundType.h b/third-party/td/td/td/telegram/NotificationSoundType.h
deleted file mode 100644
index 952035f045..0000000000
--- a/third-party/td/td/td/telegram/NotificationSoundType.h
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-enum class NotificationSoundType : int32 { None, Local, Ringtone };
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationType.cpp b/third-party/td/td/td/telegram/NotificationType.cpp
deleted file mode 100644
index add5dac901..0000000000
--- a/third-party/td/td/td/telegram/NotificationType.cpp
+++ /dev/null
@@ -1,485 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/NotificationType.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/VideoNotesManager.h"
-#include "td/telegram/VideosManager.h"
-#include "td/telegram/VoiceNotesManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-
-#include <tuple>
-
-namespace td {
-
-class NotificationTypeMessage final : public NotificationType {
-  bool can_be_delayed() const final {
-    return message_id_.is_valid() && message_id_.is_server();
-  }
-
-  bool is_temporary() const final {
-    return false;
-  }
-
-  NotificationObjectId get_object_id() const final {
-    return message_id_;
-  }
-
-  vector<FileId> get_file_ids(const Td *td) const final {
-    return {};
-  }
-
-  td_api::object_ptr<td_api::NotificationType> get_notification_type_object(Td *td, DialogId dialog_id) const final {
-    auto message_object =
-        td->messages_manager_->get_message_object({dialog_id, message_id_}, "get_notification_type_object");
-    if (message_object == nullptr) {
-      return nullptr;
-    }
-    return td_api::make_object<td_api::notificationTypeNewMessage>(std::move(message_object), show_preview_);
-  }
-
-  StringBuilder &to_string_builder(StringBuilder &string_builder) const final {
-    return string_builder << "NewMessageNotification[" << message_id_ << ']';
-  }
-
-  MessageId message_id_;
-  bool show_preview_;
-
- public:
-  NotificationTypeMessage(MessageId message_id, bool show_preview)
-      : message_id_(message_id), show_preview_(show_preview) {
-  }
-};
-
-class NotificationTypeSecretChat final : public NotificationType {
-  bool can_be_delayed() const final {
-    return false;
-  }
-
-  bool is_temporary() const final {
-    return false;
-  }
-
-  NotificationObjectId get_object_id() const final {
-    return NotificationObjectId();
-  }
-
-  vector<FileId> get_file_ids(const Td *td) const final {
-    return {};
-  }
-
-  td_api::object_ptr<td_api::NotificationType> get_notification_type_object(Td *, DialogId) const final {
-    return td_api::make_object<td_api::notificationTypeNewSecretChat>();
-  }
-
-  StringBuilder &to_string_builder(StringBuilder &string_builder) const final {
-    return string_builder << "NewSecretChatNotification[]";
-  }
-
- public:
-  NotificationTypeSecretChat() {
-  }
-};
-
-class NotificationTypeCall final : public NotificationType {
-  bool can_be_delayed() const final {
-    return false;
-  }
-
-  bool is_temporary() const final {
-    return false;
-  }
-
-  NotificationObjectId get_object_id() const final {
-    return NotificationObjectId::max();
-  }
-
-  vector<FileId> get_file_ids(const Td *td) const final {
-    return {};
-  }
-
-  td_api::object_ptr<td_api::NotificationType> get_notification_type_object(Td *, DialogId) const final {
-    return td_api::make_object<td_api::notificationTypeNewCall>(call_id_.get());
-  }
-
-  StringBuilder &to_string_builder(StringBuilder &string_builder) const final {
-    return string_builder << "NewCallNotification[" << call_id_ << ']';
-  }
-
-  CallId call_id_;
-
- public:
-  explicit NotificationTypeCall(CallId call_id) : call_id_(call_id) {
-  }
-};
-
-class NotificationTypePushMessage final : public NotificationType {
-  bool can_be_delayed() const final {
-    return false;
-  }
-
-  bool is_temporary() const final {
-    return true;
-  }
-
-  NotificationObjectId get_object_id() const final {
-    return message_id_;
-  }
-
-  vector<FileId> get_file_ids(const Td *td) const final {
-    if (!document_.empty()) {
-      return document_.get_file_ids(td);
-    }
-
-    return photo_get_file_ids(photo_);
-  }
-
-  static td_api::object_ptr<td_api::PushMessageContent> get_push_message_content_object(Td *td, Slice key,
-                                                                                        const string &arg,
-                                                                                        const Photo &photo,
-                                                                                        const Document &document) {
-    bool is_pinned = false;
-    if (begins_with(key, "PINNED_")) {
-      is_pinned = true;
-      key = key.substr(7);
-    }
-    if (key == "MESSAGE") {
-      return td_api::make_object<td_api::pushMessageContentHidden>(is_pinned);
-    }
-    if (key == "MESSAGES") {
-      return td_api::make_object<td_api::pushMessageContentMediaAlbum>(to_integer<int32>(arg), true, true, false,
-                                                                       false);
-    }
-    CHECK(key.size() > 8);
-    switch (key[8]) {
-      case 'A':
-        if (key == "MESSAGE_ANIMATION") {
-          return td_api::make_object<td_api::pushMessageContentAnimation>(
-              td->animations_manager_->get_animation_object(document.file_id), arg, is_pinned);
-        }
-        if (key == "MESSAGE_AUDIO") {
-          return td_api::make_object<td_api::pushMessageContentAudio>(
-              td->audios_manager_->get_audio_object(document.file_id), is_pinned);
-        }
-        if (key == "MESSAGE_AUDIOS") {
-          return td_api::make_object<td_api::pushMessageContentMediaAlbum>(to_integer<int32>(arg), false, false, true,
-                                                                           false);
-        }
-        break;
-      case 'B':
-        if (key == "MESSAGE_BASIC_GROUP_CHAT_CREATE") {
-          return td_api::make_object<td_api::pushMessageContentBasicGroupChatCreate>();
-        }
-        break;
-      case 'C':
-        if (key == "MESSAGE_CHAT_ADD_MEMBERS") {
-          return td_api::make_object<td_api::pushMessageContentChatAddMembers>(arg, false, false);
-        }
-        if (key == "MESSAGE_CHAT_ADD_MEMBERS_RETURNED") {
-          return td_api::make_object<td_api::pushMessageContentChatAddMembers>(arg, false, true);
-        }
-        if (key == "MESSAGE_CHAT_ADD_MEMBERS_YOU") {
-          return td_api::make_object<td_api::pushMessageContentChatAddMembers>(arg, true, false);
-        }
-        if (key == "MESSAGE_CHAT_CHANGE_PHOTO") {
-          return td_api::make_object<td_api::pushMessageContentChatChangePhoto>();
-        }
-        if (key == "MESSAGE_CHAT_CHANGE_THEME") {
-          return td_api::make_object<td_api::pushMessageContentChatSetTheme>(arg);
-        }
-        if (key == "MESSAGE_CHAT_CHANGE_TITLE") {
-          return td_api::make_object<td_api::pushMessageContentChatChangeTitle>(arg);
-        }
-        if (key == "MESSAGE_CHAT_DELETE_MEMBER") {
-          return td_api::make_object<td_api::pushMessageContentChatDeleteMember>(arg, false, false);
-        }
-        if (key == "MESSAGE_CHAT_DELETE_MEMBER_LEFT") {
-          return td_api::make_object<td_api::pushMessageContentChatDeleteMember>(arg, false, true);
-        }
-        if (key == "MESSAGE_CHAT_DELETE_MEMBER_YOU") {
-          return td_api::make_object<td_api::pushMessageContentChatDeleteMember>(arg, true, false);
-        }
-        if (key == "MESSAGE_CHAT_JOIN_BY_LINK") {
-          return td_api::make_object<td_api::pushMessageContentChatJoinByLink>();
-        }
-        if (key == "MESSAGE_CHAT_JOIN_BY_REQUEST") {
-          return td_api::make_object<td_api::pushMessageContentChatJoinByRequest>();
-        }
-        if (key == "MESSAGE_CHAT_LIVESTREAM_END") {
-          return td_api::make_object<td_api::pushMessageContentVideoChatEnded>();
-        }
-        if (key == "MESSAGE_CHAT_LIVESTREAM_START") {
-          return td_api::make_object<td_api::pushMessageContentVideoChatStarted>();
-        }
-        if (key == "MESSAGE_CHAT_VOICECHAT_END") {
-          return td_api::make_object<td_api::pushMessageContentVideoChatEnded>();
-        }
-        if (key == "MESSAGE_CHAT_VOICECHAT_INVITE") {
-          return td_api::make_object<td_api::pushMessageContentInviteVideoChatParticipants>(false);
-        }
-        if (key == "MESSAGE_CHAT_VOICECHAT_INVITE_YOU") {
-          return td_api::make_object<td_api::pushMessageContentInviteVideoChatParticipants>(true);
-        }
-        if (key == "MESSAGE_CHAT_VOICECHAT_START") {
-          return td_api::make_object<td_api::pushMessageContentVideoChatStarted>();
-        }
-        if (key == "MESSAGE_CONTACT") {
-          return td_api::make_object<td_api::pushMessageContentContact>(arg, is_pinned);
-        }
-        if (key == "MESSAGE_CONTACT_REGISTERED") {
-          return td_api::make_object<td_api::pushMessageContentContactRegistered>();
-        }
-        break;
-      case 'D':
-        if (key == "MESSAGE_DOCUMENT") {
-          return td_api::make_object<td_api::pushMessageContentDocument>(
-              td->documents_manager_->get_document_object(document.file_id, PhotoFormat::Jpeg), is_pinned);
-        }
-        if (key == "MESSAGE_DOCUMENTS") {
-          return td_api::make_object<td_api::pushMessageContentMediaAlbum>(to_integer<int32>(arg), false, false, false,
-                                                                           true);
-        }
-        break;
-      case 'F':
-        if (key == "MESSAGE_FORWARDS") {
-          return td_api::make_object<td_api::pushMessageContentMessageForwards>(to_integer<int32>(arg));
-        }
-        break;
-      case 'G':
-        if (key == "MESSAGE_GAME") {
-          return td_api::make_object<td_api::pushMessageContentGame>(arg, is_pinned);
-        }
-        if (key == "MESSAGE_GAME_SCORE") {
-          int32 score = 0;
-          string title;
-          if (!is_pinned) {
-            string score_str;
-            std::tie(score_str, title) = split(arg);
-            score = to_integer<int32>(score_str);
-          }
-          return td_api::make_object<td_api::pushMessageContentGameScore>(title, score, is_pinned);
-        }
-        if (key == "MESSAGE_GIFTCODE") {
-          auto month_count = to_integer<int32>(arg);
-          return td_api::make_object<td_api::pushMessageContentPremiumGiftCode>(month_count);
-        }
-        if (key == "MESSAGE_GIVEAWAY") {
-          int32 user_count = 0;
-          int32 month_count = 0;
-          if (!is_pinned) {
-            string user_count_str;
-            string month_count_str;
-            std::tie(user_count_str, month_count_str) = split(arg);
-            user_count = to_integer<int32>(user_count_str);
-            month_count = to_integer<int32>(month_count_str);
-          }
-          return td_api::make_object<td_api::pushMessageContentGiveaway>(
-              user_count, is_pinned ? nullptr : td_api::make_object<td_api::giveawayPrizePremium>(month_count),
-              is_pinned);
-        }
-        if (key == "MESSAGE_GIVEAWAY_STARS") {
-          int32 user_count = 0;
-          int64 star_count = 0;
-          if (!is_pinned) {
-            string user_count_str;
-            string star_count_str;
-            std::tie(user_count_str, star_count_str) = split(arg);
-            user_count = to_integer<int32>(user_count_str);
-            star_count = to_integer<int64>(star_count_str);
-          }
-          return td_api::make_object<td_api::pushMessageContentGiveaway>(
-              user_count, is_pinned ? nullptr : td_api::make_object<td_api::giveawayPrizeStars>(star_count), is_pinned);
-        }
-        break;
-      case 'I':
-        if (key == "MESSAGE_INVOICE") {
-          return td_api::make_object<td_api::pushMessageContentInvoice>(arg, is_pinned);
-        }
-        break;
-      case 'L':
-        if (key == "MESSAGE_LIVE_LOCATION") {
-          return td_api::make_object<td_api::pushMessageContentLocation>(false, is_pinned);
-        }
-        if (key == "MESSAGE_LOCATION") {
-          return td_api::make_object<td_api::pushMessageContentLocation>(true, is_pinned);
-        }
-        break;
-      case 'P':
-        if (key == "MESSAGE_PAID_MEDIA") {
-          int64 star_count = 0;
-          if (!is_pinned) {
-            star_count = to_integer<int64>(arg);
-          }
-          return td_api::make_object<td_api::pushMessageContentPaidMedia>(star_count, is_pinned);
-        }
-        if (key == "MESSAGE_PHOTO") {
-          return td_api::make_object<td_api::pushMessageContentPhoto>(get_photo_object(td->file_manager_.get(), photo),
-                                                                      arg, false, is_pinned);
-        }
-        if (key == "MESSAGE_PHOTOS") {
-          return td_api::make_object<td_api::pushMessageContentMediaAlbum>(to_integer<int32>(arg), true, false, false,
-                                                                           false);
-        }
-        if (key == "MESSAGE_POLL") {
-          return td_api::make_object<td_api::pushMessageContentPoll>(arg, true, is_pinned);
-        }
-        if (key == "MESSAGE_PROXIMITY") {
-          return td_api::make_object<td_api::pushMessageContentProximityAlertTriggered>(to_integer<int32>(arg));
-        }
-        break;
-      case 'Q':
-        if (key == "MESSAGE_QUIZ") {
-          return td_api::make_object<td_api::pushMessageContentPoll>(arg, false, is_pinned);
-        }
-        break;
-      case 'R':
-        if (key == "MESSAGE_RECURRING_PAYMENT") {
-          return td_api::make_object<td_api::pushMessageContentRecurringPayment>(arg);
-        }
-        break;
-      case 'S':
-        if (key == "MESSAGE_SAME_WALLPAPER") {
-          return td_api::make_object<td_api::pushMessageContentChatSetBackground>(true);
-        }
-        if (key == "MESSAGE_SCREENSHOT_TAKEN") {
-          return td_api::make_object<td_api::pushMessageContentScreenshotTaken>();
-        }
-        if (key == "MESSAGE_SECRET_PHOTO") {
-          return td_api::make_object<td_api::pushMessageContentPhoto>(nullptr, arg, true, false);
-        }
-        if (key == "MESSAGE_SECRET_VIDEO") {
-          return td_api::make_object<td_api::pushMessageContentVideo>(nullptr, arg, true, false);
-        }
-        if (key == "MESSAGE_STARGIFT") {
-          auto star_count = to_integer<int64>(arg);
-          return td_api::make_object<td_api::pushMessageContentGift>(star_count);
-        }
-        if (key == "MESSAGE_STARGIFT_TRANSFER") {
-          return td_api::make_object<td_api::pushMessageContentUpgradedGift>(false);
-        }
-        if (key == "MESSAGE_STARGIFT_UPGRADE") {
-          return td_api::make_object<td_api::pushMessageContentUpgradedGift>(true);
-        }
-        if (key == "MESSAGE_STICKER") {
-          return td_api::make_object<td_api::pushMessageContentSticker>(
-              td->stickers_manager_->get_sticker_object(document.file_id), trim(arg), is_pinned);
-        }
-        if (key == "MESSAGE_STORY") {
-          return td_api::make_object<td_api::pushMessageContentStory>(false, is_pinned);
-        }
-        if (key == "MESSAGE_STORY_MENTION") {
-          return td_api::make_object<td_api::pushMessageContentStory>(true, is_pinned);
-        }
-        if (key == "MESSAGE_SUGGEST_PHOTO") {
-          return td_api::make_object<td_api::pushMessageContentSuggestProfilePhoto>();
-        }
-        break;
-      case 'T':
-        if (key == "MESSAGE_TEXT") {
-          return td_api::make_object<td_api::pushMessageContentText>(arg, is_pinned);
-        }
-        break;
-      case 'V':
-        if (key == "MESSAGE_VIDEO") {
-          return td_api::make_object<td_api::pushMessageContentVideo>(
-              td->videos_manager_->get_video_object(document.file_id), arg, false, is_pinned);
-        }
-        if (key == "MESSAGE_VIDEO_NOTE") {
-          return td_api::make_object<td_api::pushMessageContentVideoNote>(
-              td->video_notes_manager_->get_video_note_object(document.file_id), is_pinned);
-        }
-        if (key == "MESSAGE_VIDEOS") {
-          return td_api::make_object<td_api::pushMessageContentMediaAlbum>(to_integer<int32>(arg), false, true, false,
-                                                                           false);
-        }
-        if (key == "MESSAGE_VOICE_NOTE") {
-          return td_api::make_object<td_api::pushMessageContentVoiceNote>(
-              td->voice_notes_manager_->get_voice_note_object(document.file_id), is_pinned);
-        }
-        break;
-      case 'W':
-        if (key == "MESSAGE_WALLPAPER") {
-          return td_api::make_object<td_api::pushMessageContentChatSetBackground>(false);
-        }
-        break;
-      default:
-        break;
-    }
-    LOG(FATAL) << "Have unsupported push notification key " << key;
-    return nullptr;
-  }
-
-  td_api::object_ptr<td_api::NotificationType> get_notification_type_object(Td *td, DialogId) const final {
-    auto sender = get_message_sender_object(td, sender_user_id_, sender_dialog_id_, "get_notification_type_object");
-    return td_api::make_object<td_api::notificationTypeNewPushMessage>(
-        message_id_.get(), std::move(sender), sender_name_, is_outgoing_,
-        get_push_message_content_object(td, key_, arg_, photo_, document_));
-  }
-
-  StringBuilder &to_string_builder(StringBuilder &string_builder) const final {
-    return string_builder << "NewPushMessageNotification[" << sender_user_id_ << "/" << sender_dialog_id_ << "/\""
-                          << sender_name_ << "\", " << message_id_ << ", " << key_ << ", " << arg_ << ", " << photo_
-                          << ", " << document_ << ']';
-  }
-
-  UserId sender_user_id_;
-  DialogId sender_dialog_id_;
-  MessageId message_id_;
-  string sender_name_;
-  string key_;
-  string arg_;
-  Photo photo_;
-  Document document_;
-  bool is_outgoing_;
-
- public:
-  NotificationTypePushMessage(UserId sender_user_id, DialogId sender_dialog_id, string sender_name, bool is_outgoing,
-                              MessageId message_id, string key, string arg, Photo photo, Document document)
-      : sender_user_id_(sender_user_id)
-      , sender_dialog_id_(sender_dialog_id)
-      , message_id_(message_id)
-      , sender_name_(std::move(sender_name))
-      , key_(std::move(key))
-      , arg_(std::move(arg))
-      , photo_(std::move(photo))
-      , document_(std::move(document))
-      , is_outgoing_(is_outgoing) {
-  }
-};
-
-unique_ptr<NotificationType> create_new_message_notification(MessageId message_id, bool show_preview) {
-  return make_unique<NotificationTypeMessage>(message_id, show_preview);
-}
-
-unique_ptr<NotificationType> create_new_secret_chat_notification() {
-  return make_unique<NotificationTypeSecretChat>();
-}
-
-unique_ptr<NotificationType> create_new_call_notification(CallId call_id) {
-  return make_unique<NotificationTypeCall>(call_id);
-}
-
-unique_ptr<NotificationType> create_new_push_message_notification(UserId sender_user_id, DialogId sender_dialog_id,
-                                                                  string sender_name, bool is_outgoing,
-                                                                  MessageId message_id, string key, string arg,
-                                                                  Photo photo, Document document) {
-  return td::make_unique<NotificationTypePushMessage>(sender_user_id, sender_dialog_id, std::move(sender_name),
-                                                      is_outgoing, message_id, std::move(key), std::move(arg),
-                                                      std::move(photo), std::move(document));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/NotificationType.h b/third-party/td/td/td/telegram/NotificationType.h
deleted file mode 100644
index e4e8d9d0fd..0000000000
--- a/third-party/td/td/td/telegram/NotificationType.h
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CallId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/NotificationObjectId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class NotificationType {
- public:
-  NotificationType() = default;
-  NotificationType(const NotificationType &) = delete;
-  NotificationType &operator=(const NotificationType &) = delete;
-  NotificationType(NotificationType &&) = delete;
-  NotificationType &operator=(NotificationType &&) = delete;
-  virtual ~NotificationType() = default;
-
-  virtual bool can_be_delayed() const = 0;
-
-  virtual bool is_temporary() const = 0;
-
-  virtual NotificationObjectId get_object_id() const = 0;
-
-  virtual vector<FileId> get_file_ids(const Td *td) const = 0;
-
-  virtual td_api::object_ptr<td_api::NotificationType> get_notification_type_object(Td *td,
-                                                                                    DialogId dialog_id) const = 0;
-
-  virtual StringBuilder &to_string_builder(StringBuilder &string_builder) const = 0;
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const NotificationType &notification_type) {
-  return notification_type.to_string_builder(string_builder);
-}
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const unique_ptr<NotificationType> &notification_type) {
-  if (notification_type == nullptr) {
-    return string_builder << "null";
-  }
-  return string_builder << *notification_type;
-}
-
-unique_ptr<NotificationType> create_new_message_notification(MessageId message_id, bool show_preview);
-
-unique_ptr<NotificationType> create_new_secret_chat_notification();
-
-unique_ptr<NotificationType> create_new_call_notification(CallId call_id);
-
-unique_ptr<NotificationType> create_new_push_message_notification(UserId sender_user_id, DialogId sender_dialog_id,
-                                                                  string sender_name, bool is_outgoing,
-                                                                  MessageId message_id, string key, string arg,
-                                                                  Photo photo, Document document);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OnlineManager.cpp b/third-party/td/td/td/telegram/OnlineManager.cpp
deleted file mode 100644
index 228d2a9d7d..0000000000
--- a/third-party/td/td/td/telegram/OnlineManager.cpp
+++ /dev/null
@@ -1,164 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/OnlineManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class UpdateStatusQuery final : public Td::ResultHandler {
-  bool is_offline_;
-
- public:
-  NetQueryRef send(bool is_offline) {
-    is_offline_ = is_offline;
-    auto net_query = G()->net_query_creator().create(telegram_api::account_updateStatus(is_offline));
-    auto result = net_query.get_weak();
-    send_query(std::move(net_query));
-    return result;
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateStatus>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(INFO) << "Receive result for UpdateStatusQuery: " << result;
-    td_->online_manager_->on_update_status_success(!is_offline_);
-  }
-
-  void on_error(Status status) final {
-    if (status.code() != NetQuery::Canceled && !G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for UpdateStatusQuery: " << status;
-    }
-  }
-};
-
-OnlineManager::OnlineManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void OnlineManager::tear_down() {
-  parent_.reset();
-}
-
-void OnlineManager::start_up() {
-  init();
-}
-
-void OnlineManager::init() {
-  if (is_online_) {
-    on_online_updated(false /*ignored*/, true);
-  }
-  if (td_->auth_manager_->is_bot()) {
-    set_is_bot_online(true);
-  }
-}
-
-void OnlineManager::on_online_timeout_callback(void *online_manager_ptr) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto online_manager = static_cast<OnlineManager *>(online_manager_ptr);
-  send_closure_later(online_manager->actor_id(online_manager), &OnlineManager::on_online_updated, false, true);
-}
-
-void OnlineManager::on_ping_server_timeout_callback(void *online_manager_ptr) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto online_manager = static_cast<OnlineManager *>(online_manager_ptr);
-  send_closure_later(online_manager->actor_id(online_manager), &OnlineManager::on_ping_server_timeout);
-}
-
-void OnlineManager::on_online_updated(bool force, bool send_update) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (force || is_online_) {
-    td_->user_manager_->set_my_online_status(is_online_, send_update, true);
-    if (!update_status_query_.empty()) {
-      LOG(INFO) << "Cancel previous update status query";
-      cancel_query(update_status_query_);
-    }
-    update_status_query_ = td_->create_handler<UpdateStatusQuery>()->send(!is_online_);
-  }
-  if (is_online_) {
-    online_timeout_.set_callback(std::move(on_online_timeout_callback));
-    online_timeout_.set_callback_data(static_cast<void *>(this));
-    online_timeout_.set_timeout_in(static_cast<double>(G()->get_option_integer("online_update_period_ms", 210000)) *
-                                   1e-3);
-  } else {
-    online_timeout_.cancel_timeout();
-  }
-}
-
-void OnlineManager::on_update_status_success(bool is_online) {
-  if (is_online == is_online_) {
-    if (!update_status_query_.empty()) {
-      update_status_query_ = NetQueryRef();
-    }
-    td_->user_manager_->set_my_online_status(is_online_, true, false);
-  }
-}
-
-bool OnlineManager::is_online() const {
-  return is_online_;
-}
-
-void OnlineManager::set_is_online(bool is_online) {
-  if (is_online == is_online_) {
-    return;
-  }
-
-  is_online_ = is_online;
-  if (td_->auth_manager_ != nullptr) {  // postpone if there is no AuthManager yet
-    on_online_updated(true, true);
-  }
-}
-
-void OnlineManager::set_is_bot_online(bool is_bot_online) {
-  ping_server_timeout_.set_callback(std::move(on_ping_server_timeout_callback));
-  ping_server_timeout_.set_callback_data(static_cast<void *>(this));
-  ping_server_timeout_.set_timeout_in(PING_SERVER_TIMEOUT + Random::fast(0, PING_SERVER_TIMEOUT / 5));
-
-  if (td_->option_manager_->get_option_integer("session_count") > 1) {
-    is_bot_online = false;
-  }
-
-  if (is_bot_online == is_bot_online_) {
-    return;
-  }
-
-  is_bot_online_ = is_bot_online;
-  send_closure(G()->state_manager(), &StateManager::on_online, is_bot_online_);
-}
-
-void OnlineManager::on_ping_server_timeout() {
-  if (G()->close_flag() || td_->updates_manager_ == nullptr || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  td_->updates_manager_->ping_server();
-  set_is_bot_online(false);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OnlineManager.h b/third-party/td/td/td/telegram/OnlineManager.h
deleted file mode 100644
index dbd8f014e0..0000000000
--- a/third-party/td/td/td/telegram/OnlineManager.h
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Td;
-
-class OnlineManager final : public Actor {
- public:
-  OnlineManager(Td *td, ActorShared<> parent);
-
-  void init();
-
-  void on_online_updated(bool force, bool send_update);
-
-  void on_update_status_success(bool is_online);
-
-  bool is_online() const;
-
-  void set_is_online(bool is_online);
-
-  void set_is_bot_online(bool is_bot_online);
-
- private:
-  static constexpr int32 PING_SERVER_TIMEOUT = 300;
-
-  void tear_down() final;
-
-  void start_up() final;
-
-  static void on_online_timeout_callback(void *online_manager_ptr);
-
-  static void on_ping_server_timeout_callback(void *online_manager_ptr);
-
-  void on_ping_server_timeout();
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  bool is_online_ = false;
-  bool is_bot_online_ = false;
-  NetQueryRef update_status_query_;
-
-  Timeout online_timeout_;
-  Timeout ping_server_timeout_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OptionManager.cpp b/third-party/td/td/td/telegram/OptionManager.cpp
deleted file mode 100644
index 058db78f59..0000000000
--- a/third-party/td/td/td/telegram/OptionManager.cpp
+++ /dev/null
@@ -1,1076 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/OptionManager.h"
-
-#include "td/telegram/AccountManager.h"
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/CountryInfoManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/GitCommitHash.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/JsonValue.h"
-#include "td/telegram/LanguagePackManager.h"
-#include "td/telegram/net/MtprotoHeader.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StorageManager.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/TopDialogManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/db/KeyValueSyncInterface.h"
-#include "td/db/TsSeqKeyValue.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-#include <cmath>
-#include <functional>
-#include <limits>
-
-namespace td {
-
-OptionManager::OptionManager(Td *td)
-    : td_(td)
-    , current_scheduler_id_(Scheduler::instance()->sched_id())
-    , options_(td::make_unique<TsSeqKeyValue>())
-    , option_pmc_(G()->td_db()->get_config_pmc_shared()) {
-  send_unix_time_update();
-
-  auto &options = options_->inner();
-
-  option_pmc_->for_each([&](Slice name, Slice value) {
-    if (name == "utc_time_offset") {
-      return;
-    }
-    CHECK(!name.empty());
-    options.set(name, value);
-    if (!is_internal_option(name)) {
-      send_closure(G()->td(), &Td::send_update,
-                   td_api::make_object<td_api::updateOption>(name.str(), get_option_value_object(value)));
-    } else {
-      auto update = get_internal_option_update(name);
-      if (update != nullptr) {
-        send_closure(G()->td(), &Td::send_update, std::move(update));
-      }
-    }
-  });
-
-  auto utc_time_offset = PSTRING() << 'I' << Clocks::tz_offset();
-  options.set("utc_time_offset", utc_time_offset);
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateOption>("utc_time_offset", get_option_value_object(utc_time_offset)));
-
-  bool is_test_dc = G()->is_test_dc();
-  auto set_default_integer_option = [&](string name, int64 value) {
-    if (options.isset(name)) {
-      if (false && options.get(name) != (PSTRING() << 'I' << value)) {
-        LOG(ERROR) << "Option " << name << " has default value " << value << " instead of "
-                   << options.get(name).substr(1);
-      }
-      return;
-    }
-    auto str_value = PSTRING() << 'I' << value;
-    options.set(name, str_value);
-    option_pmc_->set(name, str_value);
-
-    if (!is_internal_option(name)) {
-      send_closure(
-          G()->td(), &Td::send_update,
-          td_api::make_object<td_api::updateOption>(name, td_api::make_object<td_api::optionValueInteger>(value)));
-    }
-  };
-  set_default_integer_option("telegram_service_notifications_chat_id",
-                             DialogId(UserManager::get_service_notifications_user_id()).get());
-  set_default_integer_option("replies_bot_chat_id", DialogId(UserManager::get_replies_bot_user_id()).get());
-  set_default_integer_option("verification_codes_bot_chat_id",
-                             DialogId(UserManager::get_verification_codes_bot_user_id()).get());
-  set_default_integer_option("group_anonymous_bot_user_id", UserManager::get_anonymous_bot_user_id().get());
-  set_default_integer_option("channel_bot_user_id", UserManager::get_channel_bot_user_id().get());
-  set_default_integer_option("anti_spam_bot_user_id", UserManager::get_anti_spam_bot_user_id().get());
-  set_default_integer_option("message_caption_length_max", 1024);
-  set_default_integer_option("message_reply_quote_length_max", 1024);
-  set_default_integer_option("story_caption_length_max", 200);
-  set_default_integer_option("bio_length_max", 70);
-  set_default_integer_option("suggested_video_note_length", 384);
-  set_default_integer_option("suggested_video_note_video_bitrate", 1000);
-  set_default_integer_option("suggested_video_note_audio_bitrate", 64);
-  set_default_integer_option("notification_sound_duration_max", 5);
-  set_default_integer_option("notification_sound_size_max", 307200);
-  set_default_integer_option("notification_sound_count_max", is_test_dc ? 5 : 100);
-  set_default_integer_option("chat_folder_count_max", is_test_dc ? 3 : 10);
-  set_default_integer_option("chat_folder_chosen_chat_count_max", is_test_dc ? 5 : 100);
-  set_default_integer_option("aggressive_anti_spam_supergroup_member_count_min", is_test_dc ? 1 : 200);
-  set_default_integer_option("pinned_forum_topic_count_max", is_test_dc ? 3 : 5);
-  set_default_integer_option("story_stealth_mode_past_period", 300);
-  set_default_integer_option("story_stealth_mode_future_period", 1500);
-  set_default_integer_option("story_stealth_mode_cooldown_period", 3 * 3600);
-  set_default_integer_option("giveaway_additional_chat_count_max", is_test_dc ? 3 : 10);
-  set_default_integer_option("giveaway_country_count_max", is_test_dc ? 3 : 10);
-  set_default_integer_option("giveaway_boost_count_per_premium", 4);
-  set_default_integer_option("giveaway_duration_max", 31 * 86400);
-  set_default_integer_option("premium_gift_boost_count", 3);
-  set_default_integer_option("chat_boost_level_max", is_test_dc ? 10 : 100);
-  set_default_integer_option("chat_available_reaction_count_max", 100);
-  set_default_integer_option("channel_bg_icon_level_min", is_test_dc ? 1 : 4);
-  set_default_integer_option("channel_custom_wallpaper_level_min", is_test_dc ? 4 : 10);
-  set_default_integer_option("channel_emoji_status_level_min", is_test_dc ? 2 : 8);
-  set_default_integer_option("channel_profile_bg_icon_level_min", is_test_dc ? 1 : 7);
-  set_default_integer_option("channel_restrict_sponsored_level_min", is_test_dc ? 5 : 50);
-  set_default_integer_option("channel_wallpaper_level_min", is_test_dc ? 3 : 9);
-  set_default_integer_option("pm_read_date_expire_period", 604800);
-  set_default_integer_option("group_transcribe_level_min", is_test_dc ? 4 : 6);
-  set_default_integer_option("group_emoji_stickers_level_min", is_test_dc ? 1 : 4);
-  set_default_integer_option("group_profile_bg_icon_level_min", is_test_dc ? 1 : 5);
-  set_default_integer_option("group_emoji_status_level_min", is_test_dc ? 2 : 8);
-  set_default_integer_option("group_wallpaper_level_min", is_test_dc ? 3 : 9);
-  set_default_integer_option("group_custom_wallpaper_level_min", is_test_dc ? 4 : 10);
-  set_default_integer_option("quick_reply_shortcut_count_max", is_test_dc ? 10 : 100);
-  set_default_integer_option("quick_reply_shortcut_message_count_max", 20);
-  set_default_integer_option("business_start_page_title_length_max", 32);
-  set_default_integer_option("business_start_page_message_length_max", 70);
-  set_default_integer_option("premium_download_speedup", 10);
-  set_default_integer_option("premium_upload_speedup", 10);
-  set_default_integer_option("upload_premium_speedup_notify_period", is_test_dc ? 30 : 3600);
-  set_default_integer_option("business_chat_link_count_max", is_test_dc ? 5 : 100);
-  set_default_integer_option("pinned_story_count_max", 3);
-  set_default_integer_option("fact_check_length_max", 1024);
-  set_default_integer_option("star_withdrawal_count_min", is_test_dc ? 10 : 1000);
-  set_default_integer_option("story_link_area_count_max", 3);
-  set_default_integer_option("paid_media_message_star_count_max", 10000);
-  set_default_integer_option("bot_media_preview_count_max", 12);
-  set_default_integer_option("paid_reaction_star_count_max", 10000);
-  set_default_integer_option("subscription_star_count_max", 10000);
-  set_default_integer_option("usd_to_thousand_star_rate", 1410);
-  set_default_integer_option("thousand_star_to_usd_rate", 1300);
-  set_default_integer_option("gift_text_length_max", 128);
-  set_default_integer_option("gift_sell_period", is_test_dc ? 300 : 90 * 86400);
-  set_default_integer_option("affiliate_program_commission_per_mille_min", 1);
-  set_default_integer_option("affiliate_program_commission_per_mille_max", 800);
-  set_default_integer_option("bot_verification_custom_description_length_max", 70);
-  set_default_integer_option("paid_message_star_count_max", 10000);
-  set_default_integer_option("paid_message_earnings_per_mille", 850);
-  set_default_integer_option("pinned_gift_count_max", 6);
-
-  if (options.isset("my_phone_number") || !options.isset("my_id")) {
-    update_premium_options();
-  }
-
-  set_option_empty("archive_and_mute_new_chats_from_unknown_users");
-  set_option_empty("business_intro_title_length_max");
-  set_option_empty("business_intro_message_length_max");
-  set_option_empty("channel_custom_accent_color_boost_level_min");
-  set_option_empty("chat_filter_count_max");
-  set_option_empty("chat_filter_chosen_chat_count_max");
-  set_option_empty("forum_member_count_min");
-  set_option_empty("themed_emoji_statuses_sticker_set_id");
-  set_option_empty("themed_premium_statuses_sticker_set_id");
-  set_option_empty("usd_to_1000_star_rate");
-  set_option_empty("1000_star_to_usd_rate");
-  set_option_empty("is_location_visible");
-}
-
-OptionManager::~OptionManager() = default;
-
-void OptionManager::update_premium_options() {
-  bool is_premium = get_option_boolean("is_premium");
-  if (is_premium) {
-    set_option_integer("saved_animations_limit", get_option_integer("saved_gifs_limit_premium", 400));
-    set_option_integer("favorite_stickers_limit", get_option_integer("stickers_faved_limit_premium", 10));
-    set_option_integer("chat_folder_count_max", get_option_integer("dialog_filters_limit_premium", 20));
-    set_option_integer("chat_folder_chosen_chat_count_max",
-                       get_option_integer("dialog_filters_chats_limit_premium", 200));
-    set_option_integer("pinned_chat_count_max", get_option_integer("dialogs_pinned_limit_premium", 100));
-    set_option_integer("pinned_archived_chat_count_max",
-                       get_option_integer("dialogs_folder_pinned_limit_premium", 200));
-    set_option_integer("pinned_saved_messages_topic_count_max",
-                       get_option_integer("saved_dialogs_pinned_limit_premium", 100));
-    set_option_integer("bio_length_max", get_option_integer("about_length_limit_premium", 140));
-    set_option_integer("chat_folder_invite_link_count_max", get_option_integer("chatlist_invites_limit_premium", 20));
-    set_option_integer("added_shareable_chat_folder_count_max",
-                       get_option_integer("chatlists_joined_limit_premium", 20));
-    set_option_integer("active_story_count_max", get_option_integer("story_expiring_limit_premium", 100));
-    set_option_integer("story_caption_length_max", get_option_integer("story_caption_length_limit_premium", 2048));
-    set_option_integer("weekly_sent_story_count_max", get_option_integer("stories_sent_weekly_limit_premium", 700));
-    set_option_integer("monthly_sent_story_count_max", get_option_integer("stories_sent_monthly_limit_premium", 3000));
-    set_option_integer("story_suggested_reaction_area_count_max",
-                       get_option_integer("stories_suggested_reactions_limit_premium", 5));
-
-    set_option_boolean("can_set_new_chat_privacy_settings", true);
-    set_option_boolean("can_use_text_entities_in_story_caption", true);
-  } else {
-    set_option_integer("saved_animations_limit", get_option_integer("saved_gifs_limit_default", 200));
-    set_option_integer("favorite_stickers_limit", get_option_integer("stickers_faved_limit_default", 5));
-    set_option_integer("chat_folder_count_max", get_option_integer("dialog_filters_limit_default", 10));
-    set_option_integer("chat_folder_chosen_chat_count_max",
-                       get_option_integer("dialog_filters_chats_limit_default", 100));
-    set_option_integer("pinned_chat_count_max", get_option_integer("dialogs_pinned_limit_default", 5));
-    set_option_integer("pinned_archived_chat_count_max",
-                       get_option_integer("dialogs_folder_pinned_limit_default", 100));
-    set_option_integer("pinned_saved_messages_topic_count_max",
-                       get_option_integer("saved_dialogs_pinned_limit_default", 5));
-    set_option_integer("bio_length_max", get_option_integer("about_length_limit_default", 70));
-    set_option_integer("chat_folder_invite_link_count_max", get_option_integer("chatlist_invites_limit_default", 3));
-    set_option_integer("added_shareable_chat_folder_count_max",
-                       get_option_integer("chatlists_joined_limit_default", 2));
-    set_option_integer("active_story_count_max", get_option_integer("story_expiring_limit_default", 3));
-    set_option_integer("story_caption_length_max", get_option_integer("story_caption_length_limit_default", 200));
-    set_option_integer("weekly_sent_story_count_max", get_option_integer("stories_sent_weekly_limit_default", 7));
-    set_option_integer("monthly_sent_story_count_max", get_option_integer("stories_sent_monthly_limit_default", 30));
-    set_option_integer("story_suggested_reaction_area_count_max",
-                       get_option_integer("stories_suggested_reactions_limit_default", 1));
-
-    set_option_boolean("can_set_new_chat_privacy_settings", !get_option_boolean("need_premium_for_new_chat_privacy"));
-    set_option_boolean("can_use_text_entities_in_story_caption",
-                       !get_option_boolean("need_premium_for_story_caption_entities"));
-  }
-}
-
-void OptionManager::on_td_inited() {
-  is_td_inited_ = true;
-
-  for (auto &request : pending_get_options_) {
-    get_option(request.first, std::move(request.second));
-  }
-  reset_to_empty(pending_get_options_);
-}
-
-void OptionManager::set_option_boolean(Slice name, bool value) {
-  set_option(name, value ? Slice("Btrue") : Slice("Bfalse"));
-}
-
-void OptionManager::set_option_empty(Slice name) {
-  set_option(name, Slice());
-}
-
-void OptionManager::set_option_integer(Slice name, int64 value) {
-  set_option(name, PSLICE() << 'I' << value);
-}
-
-void OptionManager::set_option_string(Slice name, Slice value) {
-  set_option(name, PSLICE() << 'S' << value);
-}
-
-bool OptionManager::have_option(Slice name) const {
-  return options_->isset(name.str());
-}
-
-bool OptionManager::get_option_boolean(Slice name, bool default_value) const {
-  auto value = get_option(name);
-  if (value.empty()) {
-    return default_value;
-  }
-  if (value == "Btrue") {
-    return true;
-  }
-  if (value == "Bfalse") {
-    return false;
-  }
-  LOG(ERROR) << "Found \"" << value << "\" instead of boolean option " << name;
-  return default_value;
-}
-
-int64 OptionManager::get_option_integer(Slice name, int64 default_value) const {
-  auto value = get_option(name);
-  if (value.empty()) {
-    return default_value;
-  }
-  if (value[0] != 'I') {
-    LOG(ERROR) << "Found \"" << value << "\" instead of integer option " << name;
-    return default_value;
-  }
-  return to_integer<int64>(value.substr(1));
-}
-
-string OptionManager::get_option_string(Slice name, string default_value) const {
-  auto value = get_option(name);
-  if (value.empty()) {
-    return default_value;
-  }
-  if (value[0] != 'S') {
-    LOG(ERROR) << "Found \"" << value << "\" instead of string option " << name;
-    return default_value;
-  }
-  return value.substr(1);
-}
-
-void OptionManager::set_option(Slice name, Slice value) {
-  CHECK(!name.empty());
-  CHECK(Scheduler::instance()->sched_id() == current_scheduler_id_);
-  if (value.empty()) {
-    if (options_->erase(name.str()) == 0) {
-      return;
-    }
-    option_pmc_->erase(name.str());
-  } else {
-    if (options_->set(name, value) == 0) {
-      return;
-    }
-    option_pmc_->set(name.str(), value.str());
-  }
-
-  if (!G()->close_flag() && is_td_inited_) {
-    on_option_updated(name);
-  }
-
-  if (!is_internal_option(name)) {
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateOption>(name.str(), get_option_value_object(get_option(name))));
-  } else {
-    auto update = get_internal_option_update(name);
-    if (update != nullptr) {
-      send_closure(G()->td(), &Td::send_update, std::move(update));
-    }
-  }
-}
-
-string OptionManager::get_option(Slice name) const {
-  return options_->get(name.str());
-}
-
-td_api::object_ptr<td_api::OptionValue> OptionManager::get_unix_time_option_value_object() {
-  return td_api::make_object<td_api::optionValueInteger>(G()->unix_time());
-}
-
-void OptionManager::send_unix_time_update() {
-  last_sent_server_time_difference_ = G()->get_server_time_difference();
-  td_->send_update(td_api::make_object<td_api::updateOption>("unix_time", get_unix_time_option_value_object()));
-}
-
-void OptionManager::on_update_server_time_difference() {
-  // can be called from any thread
-  if (std::abs(G()->get_server_time_difference() - last_sent_server_time_difference_) < 0.5) {
-    return;
-  }
-
-  send_unix_time_update();
-}
-
-bool OptionManager::is_internal_option(Slice name) {
-  static const FlatHashSet<Slice, SliceHash> internal_options{"about_length_limit_default",
-                                                              "about_length_limit_premium",
-                                                              "aggressive_anti_spam_supergroup_member_count_min",
-                                                              "animated_emoji_zoom",
-                                                              "animation_search_emojis",
-                                                              "animation_search_provider",
-                                                              "authorization_autoconfirm_period",
-                                                              "base_language_pack_version",
-                                                              "business_features",
-                                                              "call_receive_timeout_ms",
-                                                              "call_ring_timeout_ms",
-                                                              "can_edit_fact_check",
-                                                              "caption_length_limit_default",
-                                                              "caption_length_limit_premium",
-                                                              "channel_bg_icon_level_min",
-                                                              "channel_custom_wallpaper_level_min",
-                                                              "channel_emoji_status_level_min",
-                                                              "channel_profile_bg_icon_level_min",
-                                                              "channel_restrict_sponsored_level_min",
-                                                              "channel_wallpaper_level_min",
-                                                              "channels_limit_default",
-                                                              "channels_limit_premium",
-                                                              "channels_public_limit_default",
-                                                              "channels_public_limit_premium",
-                                                              "channels_read_media_period",
-                                                              "chat_read_mark_expire_period",
-                                                              "chat_read_mark_size_threshold",
-                                                              "chatlist_invites_limit_default",
-                                                              "chatlist_invites_limit_premium",
-                                                              "chatlists_joined_limit_default",
-                                                              "chatlists_joined_limit_premium",
-                                                              "dc_txt_domain_name",
-                                                              "default_reaction",
-                                                              "default_reaction_needs_sync",
-                                                              "dialog_filters_chats_limit_default",
-                                                              "dialog_filters_chats_limit_premium",
-                                                              "dialog_filters_limit_default",
-                                                              "dialog_filters_limit_premium",
-                                                              "dialogs_folder_pinned_limit_default",
-                                                              "dialogs_folder_pinned_limit_premium",
-                                                              "dialogs_pinned_limit_default",
-                                                              "dialogs_pinned_limit_premium",
-                                                              "dice_emojis",
-                                                              "dice_success_values",
-                                                              "dismiss_birthday_contact_today",
-                                                              "edit_time_limit",
-                                                              "emoji_sounds",
-                                                              "fragment_prefixes",
-                                                              "group_transcribe_level_min",
-                                                              "group_emoji_stickers_level_min",
-                                                              "group_profile_bg_icon_level_min",
-                                                              "group_emoji_status_level_min",
-                                                              "group_wallpaper_level_min",
-                                                              "group_custom_wallpaper_level_min",
-                                                              "hidden_members_group_size_min",
-                                                              "ignored_restriction_reasons",
-                                                              "language_pack_version",
-                                                              "my_phone_number",
-                                                              "need_premium_for_new_chat_privacy",
-                                                              "need_premium_for_story_caption_entities",
-                                                              "need_synchronize_archive_all_stories",
-                                                              "notification_cloud_delay_ms",
-                                                              "notification_default_delay_ms",
-                                                              "online_cloud_timeout_ms",
-                                                              "online_update_period_ms",
-                                                              "otherwise_relogin_days",
-                                                              "pm_read_date_expire_period",
-                                                              "premium_bot_username",
-                                                              "premium_features",
-                                                              "premium_invoice_slug",
-                                                              "premium_manage_subscription_url",
-                                                              "rating_e_decay",
-                                                              "reactions_uniq_max",
-                                                              "reactions_user_max_default",
-                                                              "reactions_user_max_premium",
-                                                              "recent_stickers_limit",
-                                                              "recommended_channels_limit_default",
-                                                              "recommended_channels_limit_premium",
-                                                              "restriction_add_platforms",
-                                                              "revoke_pm_inbox",
-                                                              "revoke_time_limit",
-                                                              "revoke_pm_time_limit",
-                                                              "saved_animations_limit",
-                                                              "saved_dialogs_pinned_limit_default",
-                                                              "saved_dialogs_pinned_limit_premium",
-                                                              "saved_gifs_limit_default",
-                                                              "saved_gifs_limit_premium",
-                                                              "session_count",
-                                                              "since_last_open",
-                                                              "starref_start_param_prefixes",
-                                                              "stickers_faved_limit_default",
-                                                              "stickers_faved_limit_premium",
-                                                              "stickers_normal_by_emoji_per_premium_num",
-                                                              "stickers_premium_by_emoji_num",
-                                                              "stories_changelog_user_id",
-                                                              "stories_sent_monthly_limit_default",
-                                                              "stories_sent_monthly_limit_premium",
-                                                              "stories_sent_weekly_limit_default",
-                                                              "stories_sent_weekly_limit_premium",
-                                                              "stories_suggested_reactions_limit_default",
-                                                              "stories_suggested_reactions_limit_premium",
-                                                              "story_caption_length_limit_default",
-                                                              "story_caption_length_limit_premium",
-                                                              "story_expiring_limit_default",
-                                                              "story_expiring_limit_premium",
-                                                              "ton_proxy_address",
-                                                              "upload_premium_speedup_notify_period",
-                                                              "video_ignore_alt_documents",
-                                                              "video_note_size_max",
-                                                              "weather_bot_username",
-                                                              "webfile_dc_id"};
-  return internal_options.count(name) > 0;
-}
-
-td_api::object_ptr<td_api::Update> OptionManager::get_internal_option_update(Slice name) const {
-  if (name == "default_reaction") {
-    return ReactionType(get_option_string(name)).get_update_default_reaction_type();
-  }
-  if (name == "otherwise_relogin_days") {
-    auto days = narrow_cast<int32>(get_option_integer(name));
-    if (days > 0) {
-      vector<SuggestedAction> added_actions{SuggestedAction{SuggestedAction::Type::SetPassword, DialogId(), days}};
-      return get_update_suggested_actions_object(added_actions, {}, "get_internal_option_update");
-    }
-  }
-  return nullptr;
-}
-
-const vector<Slice> &OptionManager::get_synchronous_options() {
-  static const vector<Slice> options{"version", "commit_hash"};
-  return options;
-}
-
-bool OptionManager::is_synchronous_option(Slice name) {
-  return td::contains(get_synchronous_options(), name);
-}
-
-void OptionManager::on_option_updated(Slice name) {
-  switch (name[0]) {
-    case 'a':
-      if (name == "animated_emoji_zoom") {
-        // nothing to do: animated emoji zoom is updated only at launch
-      }
-      if (name == "animation_search_emojis") {
-        td_->animations_manager_->on_update_animation_search_emojis();
-      }
-      if (name == "animation_search_provider") {
-        td_->animations_manager_->on_update_animation_search_provider();
-      }
-      if (name == "authorization_autoconfirm_period") {
-        td_->account_manager_->update_unconfirmed_authorization_timeout(true);
-      }
-      break;
-    case 'b':
-      if (name == "base_language_pack_version") {
-        send_closure(td_->language_pack_manager_, &LanguagePackManager::on_language_pack_version_changed, true, -1);
-      }
-      break;
-    case 'c':
-      if (name == "connection_parameters") {
-        if (G()->mtproto_header().set_parameters(get_option_string(name))) {
-          G()->net_query_dispatcher().update_mtproto_header();
-        }
-      }
-      break;
-    case 'd':
-      if (name == "dice_emojis") {
-        send_closure(td_->stickers_manager_actor_, &StickersManager::on_update_dice_emojis);
-      }
-      if (name == "dice_success_values") {
-        send_closure(td_->stickers_manager_actor_, &StickersManager::on_update_dice_success_values);
-      }
-      if (name == "disable_animated_emoji") {
-        td_->stickers_manager_->on_update_disable_animated_emojis();
-      }
-      if (name == "disable_contact_registered_notifications") {
-        send_closure(td_->notification_manager_actor_,
-                     &NotificationManager::on_disable_contact_registered_notifications_changed);
-      }
-      if (name == "disable_top_chats") {
-        send_closure(td_->top_dialog_manager_actor_, &TopDialogManager::update_is_enabled, !get_option_boolean(name));
-      }
-      if (name == "dismiss_birthday_contact_today") {
-        send_closure(td_->user_manager_actor_, &UserManager::reload_contact_birthdates, true);
-      }
-      break;
-    case 'e':
-      if (name == "emoji_sounds") {
-        send_closure(td_->stickers_manager_actor_, &StickersManager::on_update_emoji_sounds);
-      }
-      break;
-    case 'f':
-      if (name == "favorite_stickers_limit") {
-        td_->stickers_manager_->on_update_favorite_stickers_limit();
-      }
-      if (name == "fragment_prefixes") {
-        send_closure(td_->country_info_manager_actor_, &CountryInfoManager::on_update_fragment_prefixes);
-      }
-      break;
-    case 'i':
-      if (name == "ignored_restriction_reasons") {
-        send_closure(td_->chat_manager_actor_, &ChatManager::on_ignored_restriction_reasons_changed);
-        send_closure(td_->user_manager_actor_, &UserManager::on_ignored_restriction_reasons_changed);
-      }
-      if (name == "is_emulator") {
-        if (G()->mtproto_header().set_is_emulator(get_option_boolean(name))) {
-          G()->net_query_dispatcher().update_mtproto_header();
-        }
-      }
-      if (name == "is_premium") {
-        update_premium_options();
-      }
-      break;
-    case 'l':
-      if (name == "language_pack_id") {
-        send_closure(td_->language_pack_manager_, &LanguagePackManager::on_language_code_changed);
-        if (G()->mtproto_header().set_language_code(get_option_string(name))) {
-          G()->net_query_dispatcher().update_mtproto_header();
-        }
-        send_closure(td_->attach_menu_manager_actor_, &AttachMenuManager::reload_attach_menu_bots, Promise<Unit>());
-      }
-      if (name == "language_pack_version") {
-        send_closure(td_->language_pack_manager_, &LanguagePackManager::on_language_pack_version_changed, false, -1);
-      }
-      if (name == "localization_target") {
-        send_closure(td_->language_pack_manager_, &LanguagePackManager::on_language_pack_changed);
-        if (G()->mtproto_header().set_language_pack(get_option_string(name))) {
-          G()->net_query_dispatcher().update_mtproto_header();
-        }
-      }
-      break;
-    case 'm':
-      if (name == "my_phone_number") {
-        send_closure(G()->config_manager(), &ConfigManager::reget_config, Promise<Unit>());
-      }
-      break;
-    case 'n':
-      if (name == "need_premium_for_new_chat_privacy") {
-        update_premium_options();
-      }
-      if (name == "need_premium_for_story_caption_entities") {
-        update_premium_options();
-      }
-      if (name == "need_synchronize_archive_all_stories") {
-        send_closure(td_->story_manager_actor_, &StoryManager::try_synchronize_archive_all_stories);
-      }
-      if (name == "notification_cloud_delay_ms") {
-        send_closure(td_->notification_manager_actor_, &NotificationManager::on_notification_cloud_delay_changed);
-      }
-      if (name == "notification_default_delay_ms") {
-        send_closure(td_->notification_manager_actor_, &NotificationManager::on_notification_default_delay_changed);
-      }
-      if (name == "notification_group_count_max") {
-        send_closure(td_->notification_manager_actor_, &NotificationManager::on_notification_group_count_max_changed,
-                     true);
-      }
-      if (name == "notification_group_size_max") {
-        send_closure(td_->notification_manager_actor_, &NotificationManager::on_notification_group_size_max_changed);
-      }
-      break;
-    case 'o':
-      if (name == "online_cloud_timeout_ms") {
-        send_closure(td_->notification_manager_actor_, &NotificationManager::on_online_cloud_timeout_changed);
-      }
-      break;
-    case 'r':
-      if (name == "rating_e_decay") {
-        send_closure(td_->top_dialog_manager_actor_, &TopDialogManager::update_rating_e_decay);
-      }
-      if (name == "recent_stickers_limit") {
-        td_->stickers_manager_->on_update_recent_stickers_limit();
-      }
-      break;
-    case 's':
-      if (name == "saved_animations_limit") {
-        td_->animations_manager_->on_update_saved_animations_limit();
-      }
-      if (name == "session_count") {
-        G()->net_query_dispatcher().update_session_count();
-      }
-      break;
-    case 'u':
-      if (name == "use_pfs") {
-        G()->net_query_dispatcher().update_use_pfs();
-      }
-      if (name == "use_storage_optimizer") {
-        send_closure(td_->storage_manager_, &StorageManager::update_use_storage_optimizer);
-      }
-      if (name == "utc_time_offset") {
-        if (G()->mtproto_header().set_tz_offset(static_cast<int32>(get_option_integer(name)))) {
-          G()->net_query_dispatcher().update_mtproto_header();
-        }
-      }
-      break;
-    default:
-      break;
-  }
-}
-
-void OptionManager::get_option(const string &name, Promise<td_api::object_ptr<td_api::OptionValue>> &&promise) {
-  bool is_bot = td_->auth_manager_ != nullptr && td_->auth_manager_->is_authorized() && td_->auth_manager_->is_bot();
-  auto wrap_promise = [this, &promise, &name] {
-    return PromiseCreator::lambda([this, promise = std::move(promise), name](Unit result) mutable {
-      // the option is already updated on success, ignore errors
-      promise.set_value(get_option_value_object(get_option(name)));
-    });
-  };
-  switch (name[0]) {
-    // all these options should be added to getCurrentState
-    case 'c':
-      if (!is_bot && name == "can_ignore_sensitive_content_restrictions") {
-        return send_closure_later(td_->config_manager_, &ConfigManager::get_content_settings, wrap_promise());
-      }
-      break;
-    case 'd':
-      if (!is_bot && name == "disable_contact_registered_notifications") {
-        if (is_td_inited_) {
-          send_closure_later(td_->notification_manager_actor_,
-                             &NotificationManager::get_disable_contact_registered_notifications, wrap_promise());
-        } else {
-          pending_get_options_.emplace_back(name, std::move(promise));
-        }
-        return;
-      }
-      break;
-    case 'i':
-      if (!is_bot && name == "ignore_sensitive_content_restrictions") {
-        return send_closure_later(td_->config_manager_, &ConfigManager::get_content_settings, wrap_promise());
-      }
-      break;
-    case 'o':
-      if (name == "online") {
-        return promise.set_value(td_api::make_object<td_api::optionValueBoolean>(td_->online_manager_->is_online()));
-      }
-      break;
-    case 'u':
-      if (name == "unix_time") {
-        return promise.set_value(get_unix_time_option_value_object());
-      }
-      break;
-  }
-  wrap_promise().set_value(Unit());
-}
-
-td_api::object_ptr<td_api::OptionValue> OptionManager::get_option_synchronously(Slice name) {
-  CHECK(!name.empty());
-  switch (name[0]) {
-    case 'c':
-      if (name == "commit_hash") {
-        return td_api::make_object<td_api::optionValueString>(get_git_commit_hash());
-      }
-      break;
-    case 'v':
-      if (name == "version") {
-        return td_api::make_object<td_api::optionValueString>("1.8.46");
-      }
-      break;
-  }
-  UNREACHABLE();
-}
-
-void OptionManager::set_option(const string &name, td_api::object_ptr<td_api::OptionValue> &&value,
-                               Promise<Unit> &&promise) {
-  int32 value_constructor_id = value == nullptr ? td_api::optionValueEmpty::ID : value->get_id();
-
-  auto set_integer_option = [&](Slice option_name, int64 min_value = 0,
-                                int64 max_value = std::numeric_limits<int32>::max()) {
-    if (name != option_name) {
-      return false;
-    }
-    if (value_constructor_id == td_api::optionValueEmpty::ID) {
-      set_option_empty(option_name);
-    } else {
-      if (value_constructor_id != td_api::optionValueInteger::ID) {
-        promise.set_error(Status::Error(400, PSLICE() << "Option \"" << name << "\" must have integer value"));
-        return false;
-      }
-
-      int64 int_value = static_cast<td_api::optionValueInteger *>(value.get())->value_;
-      if (int_value < min_value || int_value > max_value) {
-        promise.set_error(Status::Error(400, PSLICE() << "Option's \"" << name << "\" value " << int_value
-                                                      << " is outside of the valid range [" << min_value << ", "
-                                                      << max_value << "]"));
-        return false;
-      }
-      set_option_integer(name, int_value);
-    }
-    promise.set_value(Unit());
-    return true;
-  };
-
-  auto set_boolean_option = [&](Slice option_name) {
-    if (name != option_name) {
-      return false;
-    }
-    if (value_constructor_id == td_api::optionValueEmpty::ID) {
-      set_option_empty(name);
-    } else {
-      if (value_constructor_id != td_api::optionValueBoolean::ID) {
-        promise.set_error(Status::Error(400, PSLICE() << "Option \"" << name << "\" must have boolean value"));
-        return false;
-      }
-
-      bool bool_value = static_cast<td_api::optionValueBoolean *>(value.get())->value_;
-      set_option_boolean(name, bool_value);
-    }
-    promise.set_value(Unit());
-    return true;
-  };
-
-  auto set_string_option = [&](Slice option_name, std::function<bool(Slice)> check_value) {
-    if (name != option_name) {
-      return false;
-    }
-    if (value_constructor_id == td_api::optionValueEmpty::ID) {
-      set_option_empty(name);
-    } else {
-      if (value_constructor_id != td_api::optionValueString::ID) {
-        promise.set_error(Status::Error(400, PSLICE() << "Option \"" << name << "\" must have string value"));
-        return false;
-      }
-
-      const string &str_value = static_cast<td_api::optionValueString *>(value.get())->value_;
-      if (str_value.empty()) {
-        set_option_empty(name);
-      } else {
-        if (check_value(str_value)) {
-          set_option_string(name, str_value);
-        } else {
-          promise.set_error(Status::Error(400, PSLICE() << "Option \"" << name << "\" can't have specified value"));
-          return false;
-        }
-      }
-    }
-    promise.set_value(Unit());
-    return true;
-  };
-
-  bool is_bot = td_->auth_manager_ != nullptr && td_->auth_manager_->is_authorized() && td_->auth_manager_->is_bot();
-  switch (name[0]) {
-    case 'a':
-      if (set_boolean_option("always_parse_markdown")) {
-        return;
-      }
-      /*
-      if (!is_bot && set_boolean_option("archive_all_stories")) {
-        set_option_boolean("need_synchronize_archive_all_stories", true);
-        return;
-      }
-      */
-      break;
-    case 'c':
-      if (!is_bot && set_string_option("connection_parameters", [](Slice value) {
-            string value_copy = value.str();
-            auto r_json_value = get_json_value(value_copy);
-            if (r_json_value.is_error()) {
-              return false;
-            }
-            return r_json_value.ok()->get_id() == td_api::jsonValueObject::ID;
-          })) {
-        return;
-      }
-      break;
-    case 'd':
-      if (!is_bot && set_boolean_option("disable_animated_emoji")) {
-        return;
-      }
-      if (!is_bot && set_boolean_option("disable_contact_registered_notifications")) {
-        return;
-      }
-      if (set_boolean_option("disable_network_statistics")) {
-        return;
-      }
-      if (set_boolean_option("disable_persistent_network_statistics")) {
-        return;
-      }
-      if (!is_bot && set_boolean_option("disable_sent_scheduled_message_notifications")) {
-        return;
-      }
-      if (set_boolean_option("disable_time_adjustment_protection")) {
-        return;
-      }
-      if (!is_bot && set_boolean_option("disable_top_chats")) {
-        return;
-      }
-      if (name == "drop_notification_ids") {
-        G()->td_db()->get_binlog_pmc()->erase("notification_id_current");
-        G()->td_db()->get_binlog_pmc()->erase("notification_group_id_current");
-        return promise.set_value(Unit());
-      }
-      break;
-    case 'i':
-      if (set_boolean_option("ignore_background_updates")) {
-        return;
-      }
-      if (set_boolean_option("ignore_default_disable_notification")) {
-        return;
-      }
-      if (set_boolean_option("ignore_file_names")) {
-        return;
-      }
-      if (set_boolean_option("ignore_inline_thumbnails")) {
-        return;
-      }
-      if (set_boolean_option("ignore_platform_restrictions")) {
-        return;
-      }
-      if (set_boolean_option("is_emulator")) {
-        return;
-      }
-      if (!is_bot && name == "ignore_sensitive_content_restrictions") {
-        if (!get_option_boolean("can_ignore_sensitive_content_restrictions")) {
-          return promise.set_error(
-              Status::Error(400, "Option \"ignore_sensitive_content_restrictions\" can't be changed by the user"));
-        }
-
-        if (value_constructor_id != td_api::optionValueBoolean::ID &&
-            value_constructor_id != td_api::optionValueEmpty::ID) {
-          return promise.set_error(
-              Status::Error(400, "Option \"ignore_sensitive_content_restrictions\" must have boolean value"));
-        }
-
-        auto ignore_sensitive_content_restrictions = value_constructor_id == td_api::optionValueBoolean::ID &&
-                                                     static_cast<td_api::optionValueBoolean *>(value.get())->value_;
-        send_closure_later(td_->config_manager_, &ConfigManager::set_content_settings,
-                           ignore_sensitive_content_restrictions, std::move(promise));
-        return;
-      }
-      break;
-    case 'l':
-      if (!is_bot && set_string_option("language_pack_database_path", [](Slice value) { return true; })) {
-        return;
-      }
-      if (!is_bot && set_string_option("language_pack_id", LanguagePackManager::check_language_code_name)) {
-        return;
-      }
-      if (!is_bot && set_string_option("localization_target", LanguagePackManager::check_language_pack_name)) {
-        return;
-      }
-      break;
-    case 'm':
-      if (set_integer_option("message_unload_delay", 60, 86400)) {
-        return;
-      }
-      break;
-    case 'n':
-      if (!is_bot &&
-          set_integer_option("notification_group_count_max", NotificationManager::MIN_NOTIFICATION_GROUP_COUNT_MAX,
-                             NotificationManager::MAX_NOTIFICATION_GROUP_COUNT_MAX)) {
-        return;
-      }
-      if (!is_bot &&
-          set_integer_option("notification_group_size_max", NotificationManager::MIN_NOTIFICATION_GROUP_SIZE_MAX,
-                             NotificationManager::MAX_NOTIFICATION_GROUP_SIZE_MAX)) {
-        return;
-      }
-      break;
-    case 'o':
-      if (name == "online") {
-        if (value_constructor_id != td_api::optionValueBoolean::ID &&
-            value_constructor_id != td_api::optionValueEmpty::ID) {
-          return promise.set_error(Status::Error(400, "Option \"online\" must have boolean value"));
-        }
-        bool is_online = value_constructor_id == td_api::optionValueEmpty::ID ||
-                         static_cast<const td_api::optionValueBoolean *>(value.get())->value_;
-        td_->online_manager_->set_is_online(is_online);
-        if (!is_bot) {
-          send_closure(td_->state_manager_, &StateManager::on_online, is_online);
-        }
-        return promise.set_value(Unit());
-      }
-      break;
-    case 'p':
-      if (set_boolean_option("prefer_ipv6")) {
-        send_closure(td_->state_manager_, &StateManager::on_network_updated);
-        return;
-      }
-      if (set_boolean_option("process_pinned_messages_as_mentions")) {
-        return;
-      }
-      break;
-    case 'r':
-      // temporary option
-      if (set_boolean_option("reuse_uploaded_photos_by_hash")) {
-        return;
-      }
-      break;
-    case 's':
-      if (set_integer_option("storage_max_files_size")) {
-        return;
-      }
-      if (set_integer_option("storage_max_time_from_last_access")) {
-        return;
-      }
-      if (set_integer_option("storage_max_file_count")) {
-        return;
-      }
-      if (set_integer_option("storage_immunity_delay")) {
-        return;
-      }
-      if (set_boolean_option("store_all_files_in_files_directory")) {
-        return;
-      }
-      break;
-    case 't':
-      if (set_boolean_option("test_flood_wait")) {
-        return;
-      }
-      break;
-    case 'u':
-      if (set_boolean_option("use_pfs")) {
-        return;
-      }
-      if (set_boolean_option("use_quick_ack")) {
-        return;
-      }
-      if (set_boolean_option("use_storage_optimizer")) {
-        return;
-      }
-      if (set_integer_option("utc_time_offset", -12 * 60 * 60, 14 * 60 * 60)) {
-        return;
-      }
-      break;
-    case 'X':
-    case 'x': {
-      if (name.size() > 255) {
-        return promise.set_error(Status::Error(400, "Option name is too long"));
-      }
-      switch (value_constructor_id) {
-        case td_api::optionValueBoolean::ID:
-          set_option_boolean(name, static_cast<const td_api::optionValueBoolean *>(value.get())->value_);
-          break;
-        case td_api::optionValueEmpty::ID:
-          set_option_empty(name);
-          break;
-        case td_api::optionValueInteger::ID:
-          set_option_integer(name, static_cast<const td_api::optionValueInteger *>(value.get())->value_);
-          break;
-        case td_api::optionValueString::ID:
-          set_option_string(name, static_cast<const td_api::optionValueString *>(value.get())->value_);
-          break;
-        default:
-          UNREACHABLE();
-      }
-      return promise.set_value(Unit());
-    }
-  }
-
-  if (promise) {
-    promise.set_error(Status::Error(400, "Option can't be set"));
-  }
-}
-
-td_api::object_ptr<td_api::OptionValue> OptionManager::get_option_value_object(Slice value) {
-  if (value.empty()) {
-    return td_api::make_object<td_api::optionValueEmpty>();
-  }
-
-  switch (value[0]) {
-    case 'B':
-      if (value == "Btrue") {
-        return td_api::make_object<td_api::optionValueBoolean>(true);
-      }
-      if (value == "Bfalse") {
-        return td_api::make_object<td_api::optionValueBoolean>(false);
-      }
-      break;
-    case 'I':
-      return td_api::make_object<td_api::optionValueInteger>(to_integer<int64>(value.substr(1)));
-    case 'S':
-      return td_api::make_object<td_api::optionValueString>(value.substr(1).str());
-  }
-
-  return td_api::make_object<td_api::optionValueString>(value.str());
-}
-
-void OptionManager::get_common_state(vector<td_api::object_ptr<td_api::Update>> &updates) {
-  for (auto option_name : get_synchronous_options()) {
-    updates.push_back(
-        td_api::make_object<td_api::updateOption>(option_name.str(), get_option_synchronously(option_name)));
-  }
-}
-
-void OptionManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  get_common_state(updates);
-
-  updates.push_back(td_api::make_object<td_api::updateOption>(
-      "online", td_api::make_object<td_api::optionValueBoolean>(td_->online_manager_->is_online())));
-
-  updates.push_back(td_api::make_object<td_api::updateOption>("unix_time", get_unix_time_option_value_object()));
-
-  for (const auto &option : options_->get_all()) {
-    if (!is_internal_option(option.first)) {
-      updates.push_back(
-          td_api::make_object<td_api::updateOption>(option.first, get_option_value_object(option.second)));
-    } else {
-      auto update = get_internal_option_update(option.first);
-      if (update != nullptr) {
-        updates.push_back(std::move(update));
-      }
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OptionManager.h b/third-party/td/td/td/telegram/OptionManager.h
deleted file mode 100644
index 7cff9a1ba7..0000000000
--- a/third-party/td/td/td/telegram/OptionManager.h
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-
-#include <atomic>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class KeyValueSyncInterface;
-class Td;
-class TsSeqKeyValue;
-
-class OptionManager {
- public:
-  explicit OptionManager(Td *td);
-  OptionManager(const OptionManager &) = delete;
-  OptionManager &operator=(const OptionManager &) = delete;
-  OptionManager(OptionManager &&) = delete;
-  OptionManager &operator=(OptionManager &&) = delete;
-  ~OptionManager();
-
-  void update_premium_options();
-
-  void on_td_inited();
-
-  void set_option_boolean(Slice name, bool value);
-
-  void set_option_empty(Slice name);
-
-  void set_option_integer(Slice name, int64 value);
-
-  void set_option_string(Slice name, Slice value);
-
-  bool have_option(Slice name) const;
-
-  bool get_option_boolean(Slice name, bool default_value = false) const;
-
-  int64 get_option_integer(Slice name, int64 default_value = 0) const;
-
-  string get_option_string(Slice name, string default_value = "") const;
-
-  void on_update_server_time_difference();
-
-  void get_option(const string &name, Promise<td_api::object_ptr<td_api::OptionValue>> &&promise);
-
-  void set_option(const string &name, td_api::object_ptr<td_api::OptionValue> &&value, Promise<Unit> &&promise);
-
-  static bool is_synchronous_option(Slice name);
-
-  static td_api::object_ptr<td_api::OptionValue> get_option_synchronously(Slice name);
-
-  static void get_common_state(vector<td_api::object_ptr<td_api::Update>> &updates);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  void set_option(Slice name, Slice value);
-
-  void on_option_updated(Slice name);
-
-  string get_option(Slice name) const;
-
-  static bool is_internal_option(Slice name);
-
-  td_api::object_ptr<td_api::Update> get_internal_option_update(Slice name) const;
-
-  static const vector<Slice> &get_synchronous_options();
-
-  static td_api::object_ptr<td_api::OptionValue> get_unix_time_option_value_object();
-
-  static td_api::object_ptr<td_api::OptionValue> get_option_value_object(Slice value);
-
-  void send_unix_time_update();
-
-  Td *td_;
-  bool is_td_inited_ = false;
-  vector<std::pair<string, Promise<td_api::object_ptr<td_api::OptionValue>>>> pending_get_options_;
-
-  int32 current_scheduler_id_ = -1;
-  unique_ptr<TsSeqKeyValue> options_;
-  std::shared_ptr<KeyValueSyncInterface> option_pmc_;
-
-  std::atomic<double> last_sent_server_time_difference_{1e100};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OrderInfo.cpp b/third-party/td/td/td/telegram/OrderInfo.cpp
deleted file mode 100644
index bda5723267..0000000000
--- a/third-party/td/td/td/telegram/OrderInfo.cpp
+++ /dev/null
@@ -1,190 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/OrderInfo.h"
-
-#include "td/telegram/misc.h"
-
-#include "td/utils/format.h"
-#include "td/utils/JsonBuilder.h"
-
-namespace td {
-
-bool operator==(const Address &lhs, const Address &rhs) {
-  return lhs.country_code == rhs.country_code && lhs.state == rhs.state && lhs.city == rhs.city &&
-         lhs.street_line1 == rhs.street_line1 && lhs.street_line2 == rhs.street_line2 &&
-         lhs.postal_code == rhs.postal_code;
-}
-
-bool operator!=(const Address &lhs, const Address &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Address &address) {
-  return string_builder << "[Address " << tag("country_code", address.country_code) << tag("state", address.state)
-                        << tag("city", address.city) << tag("street_line1", address.street_line1)
-                        << tag("street_line2", address.street_line2) << tag("postal_code", address.postal_code) << "]";
-}
-
-unique_ptr<Address> get_address(tl_object_ptr<telegram_api::postAddress> &&address) {
-  if (address == nullptr) {
-    return nullptr;
-  }
-  return td::make_unique<Address>(std::move(address->country_iso2_), std::move(address->state_),
-                                  std::move(address->city_), std::move(address->street_line1_),
-                                  std::move(address->street_line2_), std::move(address->post_code_));
-}
-
-static bool is_capital_alpha(char c) {
-  return 'A' <= c && c <= 'Z';
-}
-
-Status check_country_code(string &country_code) {
-  if (!clean_input_string(country_code)) {
-    return Status::Error(400, "Country code must be encoded in UTF-8");
-  }
-  if (country_code.size() != 2 || !is_capital_alpha(country_code[0]) || !is_capital_alpha(country_code[1])) {
-    return Status::Error(400, "Wrong country code specified");
-  }
-  return Status::OK();
-}
-
-static Status check_state(string &state) {
-  if (!clean_input_string(state)) {
-    return Status::Error(400, "State must be encoded in UTF-8");
-  }
-  return Status::OK();
-}
-
-static Status check_city(string &city) {
-  if (!clean_input_string(city)) {
-    return Status::Error(400, "City must be encoded in UTF-8");
-  }
-  return Status::OK();
-}
-
-static Status check_street_line(string &street_line) {
-  if (!clean_input_string(street_line)) {
-    return Status::Error(400, "Street line must be encoded in UTF-8");
-  }
-  return Status::OK();
-}
-
-static Status check_postal_code(string &postal_code) {
-  if (!clean_input_string(postal_code)) {
-    return Status::Error(400, "Postal code must be encoded in UTF-8");
-  }
-  return Status::OK();
-}
-
-Result<Address> get_address(td_api::object_ptr<td_api::address> &&address) {
-  if (address == nullptr) {
-    return Status::Error(400, "Address must be non-empty");
-  }
-  TRY_STATUS(check_country_code(address->country_code_));
-  TRY_STATUS(check_state(address->state_));
-  TRY_STATUS(check_city(address->city_));
-  TRY_STATUS(check_street_line(address->street_line1_));
-  TRY_STATUS(check_street_line(address->street_line2_));
-  TRY_STATUS(check_postal_code(address->postal_code_));
-
-  return Address(std::move(address->country_code_), std::move(address->state_), std::move(address->city_),
-                 std::move(address->street_line1_), std::move(address->street_line2_),
-                 std::move(address->postal_code_));
-}
-
-tl_object_ptr<td_api::address> get_address_object(const unique_ptr<Address> &address) {
-  if (address == nullptr) {
-    return nullptr;
-  }
-  return get_address_object(*address);
-}
-
-tl_object_ptr<td_api::address> get_address_object(const Address &address) {
-  return make_tl_object<td_api::address>(address.country_code, address.state, address.city, address.street_line1,
-                                         address.street_line2, address.postal_code);
-}
-
-string address_to_json(const Address &address) {
-  return json_encode<std::string>(json_object([&](auto &o) {
-    o("country_code", address.country_code);
-    o("state", address.state);
-    o("city", address.city);
-    o("street_line1", address.street_line1);
-    o("street_line2", address.street_line2);
-    o("post_code", address.postal_code);
-  }));
-}
-
-Result<Address> address_from_json(Slice json) {
-  auto json_copy = json.str();
-  auto r_value = json_decode(json_copy);
-  if (r_value.is_error()) {
-    return Status::Error(400, "Can't parse address JSON object");
-  }
-
-  auto value = r_value.move_as_ok();
-  if (value.type() != JsonValue::Type::Object) {
-    return Status::Error(400, "Address must be an Object");
-  }
-
-  auto &object = value.get_object();
-  TRY_RESULT(country_code, object.get_optional_string_field("country_code"));
-  TRY_RESULT(state, object.get_optional_string_field("state"));
-  TRY_RESULT(city, object.get_optional_string_field("city"));
-  TRY_RESULT(street_line1, object.get_optional_string_field("street_line1"));
-  TRY_RESULT(street_line2, object.get_optional_string_field("street_line2"));
-  TRY_RESULT(postal_code, object.get_optional_string_field("post_code"));
-
-  TRY_STATUS(check_country_code(country_code));
-  TRY_STATUS(check_state(state));
-  TRY_STATUS(check_city(city));
-  TRY_STATUS(check_street_line(street_line1));
-  TRY_STATUS(check_street_line(street_line2));
-  TRY_STATUS(check_postal_code(postal_code));
-
-  return Address(std::move(country_code), std::move(state), std::move(city), std::move(street_line1),
-                 std::move(street_line2), std::move(postal_code));
-}
-
-bool operator==(const OrderInfo &lhs, const OrderInfo &rhs) {
-  return lhs.name == rhs.name && lhs.phone_number == rhs.phone_number && lhs.email_address == rhs.email_address &&
-         ((lhs.shipping_address == nullptr && rhs.shipping_address == nullptr) ||
-          (lhs.shipping_address != nullptr && rhs.shipping_address != nullptr &&
-           *lhs.shipping_address == *rhs.shipping_address));
-}
-
-bool operator!=(const OrderInfo &lhs, const OrderInfo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const OrderInfo &order_info) {
-  string_builder << "[OrderInfo " << tag("name", order_info.name) << tag("phone_number", order_info.phone_number)
-                 << tag("email_address", order_info.email_address);
-  if (order_info.shipping_address != nullptr) {
-    string_builder << *order_info.shipping_address;
-  }
-  return string_builder << "]";
-}
-
-unique_ptr<OrderInfo> get_order_info(tl_object_ptr<telegram_api::paymentRequestedInfo> order_info) {
-  if (order_info == nullptr || order_info->flags_ == 0) {
-    return nullptr;
-  }
-  return td::make_unique<OrderInfo>(std::move(order_info->name_), std::move(order_info->phone_),
-                                    std::move(order_info->email_),
-                                    get_address(std::move(order_info->shipping_address_)));
-}
-
-tl_object_ptr<td_api::orderInfo> get_order_info_object(const unique_ptr<OrderInfo> &order_info) {
-  if (order_info == nullptr) {
-    return nullptr;
-  }
-  return make_tl_object<td_api::orderInfo>(order_info->name, order_info->phone_number, order_info->email_address,
-                                           get_address_object(order_info->shipping_address));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OrderInfo.h b/third-party/td/td/td/telegram/OrderInfo.h
deleted file mode 100644
index 862d13c002..0000000000
--- a/third-party/td/td/td/telegram/OrderInfo.h
+++ /dev/null
@@ -1,82 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct Address {
-  string country_code;
-  string state;
-  string city;
-  string street_line1;
-  string street_line2;
-  string postal_code;
-
-  Address() = default;
-  Address(string &&country_code, string &&state, string &&city, string &&street_line1, string &&street_line2,
-          string &&postal_code)
-      : country_code(std::move(country_code))
-      , state(std::move(state))
-      , city(std::move(city))
-      , street_line1(std::move(street_line1))
-      , street_line2(std::move(street_line2))
-      , postal_code(std::move(postal_code)) {
-  }
-};
-
-struct OrderInfo {
-  string name;
-  string phone_number;
-  string email_address;
-  unique_ptr<Address> shipping_address;
-
-  OrderInfo() = default;
-  OrderInfo(string &&name, string &&phone_number, string &&email_address, unique_ptr<Address> &&shipping_address)
-      : name(std::move(name))
-      , phone_number(std::move(phone_number))
-      , email_address(std::move(email_address))
-      , shipping_address(std::move(shipping_address)) {
-  }
-};
-
-bool operator==(const Address &lhs, const Address &rhs);
-bool operator!=(const Address &lhs, const Address &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Address &address);
-
-unique_ptr<Address> get_address(tl_object_ptr<telegram_api::postAddress> &&address);
-
-Result<Address> get_address(td_api::object_ptr<td_api::address> &&address);
-
-tl_object_ptr<td_api::address> get_address_object(const unique_ptr<Address> &address);
-
-tl_object_ptr<td_api::address> get_address_object(const Address &address);
-
-string address_to_json(const Address &address);
-
-Result<Address> address_from_json(Slice json);
-
-Status check_country_code(string &country_code);
-
-bool operator==(const OrderInfo &lhs, const OrderInfo &rhs);
-bool operator!=(const OrderInfo &lhs, const OrderInfo &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const OrderInfo &order_info);
-
-unique_ptr<OrderInfo> get_order_info(tl_object_ptr<telegram_api::paymentRequestedInfo> order_info);
-
-tl_object_ptr<td_api::orderInfo> get_order_info_object(const unique_ptr<OrderInfo> &order_info);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OrderInfo.hpp b/third-party/td/td/td/telegram/OrderInfo.hpp
deleted file mode 100644
index 7d197a64d2..0000000000
--- a/third-party/td/td/td/telegram/OrderInfo.hpp
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/OrderInfo.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const Address &address, StorerT &storer) {
-  store(address.country_code, storer);
-  store(address.state, storer);
-  store(address.city, storer);
-  store(address.street_line1, storer);
-  store(address.street_line2, storer);
-  store(address.postal_code, storer);
-}
-
-template <class ParserT>
-void parse(Address &address, ParserT &parser) {
-  parse(address.country_code, parser);
-  parse(address.state, parser);
-  parse(address.city, parser);
-  parse(address.street_line1, parser);
-  parse(address.street_line2, parser);
-  parse(address.postal_code, parser);
-}
-
-template <class StorerT>
-void store(const OrderInfo &order_info, StorerT &storer) {
-  bool has_name = !order_info.name.empty();
-  bool has_phone_number = !order_info.phone_number.empty();
-  bool has_email_address = !order_info.email_address.empty();
-  bool has_shipping_address = order_info.shipping_address != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_name);
-  STORE_FLAG(has_phone_number);
-  STORE_FLAG(has_email_address);
-  STORE_FLAG(has_shipping_address);
-  END_STORE_FLAGS();
-  if (has_name) {
-    store(order_info.name, storer);
-  }
-  if (has_phone_number) {
-    store(order_info.phone_number, storer);
-  }
-  if (has_email_address) {
-    store(order_info.email_address, storer);
-  }
-  if (has_shipping_address) {
-    store(order_info.shipping_address, storer);
-  }
-}
-
-template <class ParserT>
-void parse(OrderInfo &order_info, ParserT &parser) {
-  bool has_name;
-  bool has_phone_number;
-  bool has_email_address;
-  bool has_shipping_address;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_name);
-  PARSE_FLAG(has_phone_number);
-  PARSE_FLAG(has_email_address);
-  PARSE_FLAG(has_shipping_address);
-  END_PARSE_FLAGS();
-  if (has_name) {
-    parse(order_info.name, parser);
-  }
-  if (has_phone_number) {
-    parse(order_info.phone_number, parser);
-  }
-  if (has_email_address) {
-    parse(order_info.email_address, parser);
-  }
-  if (has_shipping_address) {
-    parse(order_info.shipping_address, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OrderedMessage.cpp b/third-party/td/td/td/telegram/OrderedMessage.cpp
deleted file mode 100644
index b388b8638d..0000000000
--- a/third-party/td/td/td/telegram/OrderedMessage.cpp
+++ /dev/null
@@ -1,420 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/OrderedMessage.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-void OrderedMessages::insert(MessageId message_id, bool auto_attach, MessageId old_last_message_id,
-                             const char *source) {
-  auto random_y = static_cast<int32>(static_cast<uint32>(message_id.get() * 2101234567u));
-  unique_ptr<OrderedMessage> *v = &messages_;
-  while (*v != nullptr && (*v)->random_y_ >= random_y) {
-    if ((*v)->message_id_.get() < message_id.get()) {
-      v = &(*v)->right_;
-    } else if ((*v)->message_id_ == message_id) {
-      UNREACHABLE();
-    } else {
-      v = &(*v)->left_;
-    }
-  }
-
-  auto message = make_unique<OrderedMessage>();
-  message->message_id_ = message_id;
-  message->random_y_ = random_y;
-
-  if (auto_attach) {
-    auto_attach_message(message.get(), old_last_message_id, source);
-  } else {
-    auto it = get_iterator(message_id);
-    if (*it != nullptr && (*it)->have_next_) {
-      // need to drop the connection between messages
-      auto previous_message = *it;
-      CHECK(previous_message->message_id_ < message_id);
-      ++it;
-      auto next_message = *it;
-      CHECK(next_message != nullptr);
-      CHECK(next_message->message_id_ > message_id);
-
-      next_message->have_previous_ = false;
-      previous_message->have_next_ = false;
-    }
-  }
-
-  unique_ptr<OrderedMessage> *left = &message->left_;
-  unique_ptr<OrderedMessage> *right = &message->right_;
-
-  unique_ptr<OrderedMessage> cur = std::move(*v);
-  while (cur != nullptr) {
-    if (cur->message_id_.get() < message_id.get()) {
-      *left = std::move(cur);
-      left = &((*left)->right_);
-      cur = std::move(*left);
-    } else {
-      *right = std::move(cur);
-      right = &((*right)->left_);
-      cur = std::move(*right);
-    }
-  }
-  CHECK(*left == nullptr);
-  CHECK(*right == nullptr);
-  *v = std::move(message);
-}
-
-void OrderedMessages::erase(MessageId message_id, bool only_from_memory) {
-  unique_ptr<OrderedMessage> *v = &messages_;
-  while (*v != nullptr) {
-    if ((*v)->message_id_.get() < message_id.get()) {
-      v = &(*v)->right_;
-    } else if ((*v)->message_id_.get() > message_id.get()) {
-      v = &(*v)->left_;
-    } else {
-      break;
-    }
-  }
-
-  CHECK(*v != nullptr);
-  if ((*v)->have_previous_ && (only_from_memory || !(*v)->have_next_)) {
-    auto it = get_iterator(message_id);
-    CHECK(*it == v->get());
-    --it;
-    OrderedMessage *prev_m = *it;
-    CHECK(prev_m != nullptr);
-    prev_m->have_next_ = false;
-  }
-  if ((*v)->have_next_ && (only_from_memory || !(*v)->have_previous_)) {
-    auto it = get_iterator(message_id);
-    CHECK(*it == v->get());
-    ++it;
-    OrderedMessage *next_m = *it;
-    CHECK(next_m != nullptr);
-    next_m->have_previous_ = false;
-  }
-
-  unique_ptr<OrderedMessage> result = std::move(*v);
-  unique_ptr<OrderedMessage> left = std::move(result->left_);
-  unique_ptr<OrderedMessage> right = std::move(result->right_);
-
-  while (left != nullptr || right != nullptr) {
-    if (left == nullptr || (right != nullptr && right->random_y_ > left->random_y_)) {
-      *v = std::move(right);
-      v = &((*v)->left_);
-      right = std::move(*v);
-    } else {
-      *v = std::move(left);
-      v = &((*v)->right_);
-      left = std::move(*v);
-    }
-  }
-  CHECK(*v == nullptr);
-}
-
-void OrderedMessages::attach_message_to_previous(MessageId message_id, const char *source) {
-  CHECK(message_id.is_valid());
-  auto it = get_iterator(message_id);
-  OrderedMessage *ordered_message = *it;
-  CHECK(ordered_message != nullptr);
-  CHECK(ordered_message->message_id_ == message_id);
-  if (ordered_message->have_previous_) {
-    return;
-  }
-  ordered_message->have_previous_ = true;
-  --it;
-  LOG_CHECK(*it != nullptr) << message_id << ' ' << source;
-  LOG(INFO) << "Attach " << message_id << " to the previous " << (*it)->message_id_ << " from " << source;
-  if ((*it)->have_next_) {
-    ordered_message->have_next_ = true;
-  } else {
-    (*it)->have_next_ = true;
-  }
-}
-
-void OrderedMessages::attach_message_to_next(MessageId message_id, const char *source) {
-  CHECK(message_id.is_valid());
-  auto it = get_iterator(message_id);
-  OrderedMessage *ordered_message = *it;
-  CHECK(ordered_message != nullptr);
-  CHECK(ordered_message->message_id_ == message_id);
-  if (ordered_message->have_next_) {
-    return;
-  }
-  ordered_message->have_next_ = true;
-  ++it;
-  LOG_CHECK(*it != nullptr) << message_id << ' ' << source;
-  LOG(INFO) << "Attach " << message_id << " to the next " << (*it)->message_id_ << " from " << source;
-  if ((*it)->have_previous_) {
-    ordered_message->have_previous_ = true;
-  } else {
-    (*it)->have_previous_ = true;
-  }
-}
-
-void OrderedMessages::auto_attach_message(OrderedMessage *message, MessageId last_message_id, const char *source) {
-  auto message_id = message->message_id_;
-  auto it = get_iterator(message_id);
-  OrderedMessage *previous_message = *it;
-  if (previous_message != nullptr) {
-    auto previous_message_id = previous_message->message_id_;
-    CHECK(previous_message_id < message_id);
-    if (previous_message->have_next_ || (last_message_id.is_valid() && previous_message_id >= last_message_id)) {
-      if (message_id.is_server() && previous_message_id.is_server() && previous_message->have_next_) {
-        ++it;
-        auto next_message = *it;
-        CHECK(next_message != nullptr);
-        if (next_message->message_id_.is_server()) {
-          LOG(ERROR) << "Attach " << message_id << " before " << next_message->message_id_ << " and after "
-                     << previous_message_id << " from " << source;
-        }
-      }
-
-      LOG(INFO) << "Attach " << message_id << " to the previous " << previous_message_id << " from " << source;
-      message->have_next_ = previous_message->have_next_;
-      message->have_previous_ = true;
-      previous_message->have_next_ = true;
-      return;
-    }
-  }
-  if (!message_id.is_yet_unsent()) {
-    // message may be attached to the next message if there is no previous message
-    OrderedMessage *cur = messages_.get();
-    OrderedMessage *next_message = nullptr;
-    while (cur != nullptr) {
-      if (cur->message_id_ < message_id) {
-        cur = cur->right_.get();
-      } else {
-        next_message = cur;
-        cur = cur->left_.get();
-      }
-    }
-    if (next_message != nullptr) {
-      CHECK(!next_message->have_previous_);
-      LOG(INFO) << "Attach " << message_id << " to the next " << next_message->message_id_ << " from " << source;
-      message->have_next_ = true;
-      next_message->have_previous_ = true;
-      return;
-    }
-  }
-
-  LOG(INFO) << "Can't auto-attach " << message_id << " from " << source;
-}
-
-void OrderedMessages::do_find_older_messages(const OrderedMessage *ordered_message, MessageId max_message_id,
-                                             vector<MessageId> &message_ids) {
-  if (ordered_message == nullptr) {
-    return;
-  }
-
-  do_find_older_messages(ordered_message->left_.get(), max_message_id, message_ids);
-
-  if (ordered_message->message_id_ <= max_message_id) {
-    message_ids.push_back(ordered_message->message_id_);
-
-    do_find_older_messages(ordered_message->right_.get(), max_message_id, message_ids);
-  }
-}
-
-vector<MessageId> OrderedMessages::find_older_messages(MessageId max_message_id) const {
-  vector<MessageId> message_ids;
-  do_find_older_messages(messages_.get(), max_message_id, message_ids);
-  return message_ids;
-}
-
-void OrderedMessages::do_find_newer_messages(const OrderedMessage *ordered_message, MessageId min_message_id,
-                                             vector<MessageId> &message_ids) {
-  if (ordered_message == nullptr) {
-    return;
-  }
-
-  if (ordered_message->message_id_ > min_message_id) {
-    do_find_newer_messages(ordered_message->left_.get(), min_message_id, message_ids);
-
-    message_ids.push_back(ordered_message->message_id_);
-  }
-
-  do_find_newer_messages(ordered_message->right_.get(), min_message_id, message_ids);
-}
-
-vector<MessageId> OrderedMessages::find_newer_messages(MessageId min_message_id) const {
-  vector<MessageId> message_ids;
-  do_find_newer_messages(messages_.get(), min_message_id, message_ids);
-  return message_ids;
-}
-
-MessageId OrderedMessages::do_find_message_by_date(const OrderedMessage *ordered_message, int32 date,
-                                                   const std::function<int32(MessageId)> &get_message_date) {
-  if (ordered_message == nullptr) {
-    return MessageId();
-  }
-
-  auto message_date = get_message_date(ordered_message->message_id_);
-  if (message_date > date) {
-    return do_find_message_by_date(ordered_message->left_.get(), date, get_message_date);
-  }
-
-  auto message_id = do_find_message_by_date(ordered_message->right_.get(), date, get_message_date);
-  if (message_id.is_valid()) {
-    return message_id;
-  }
-
-  return ordered_message->message_id_;
-}
-
-MessageId OrderedMessages::find_message_by_date(int32 date,
-                                                const std::function<int32(MessageId)> &get_message_date) const {
-  return do_find_message_by_date(messages_.get(), date, get_message_date);
-}
-
-void OrderedMessages::do_find_messages_by_date(const OrderedMessage *ordered_message, int32 min_date, int32 max_date,
-                                               const std::function<int32(MessageId)> &get_message_date,
-                                               vector<MessageId> &message_ids) {
-  if (ordered_message == nullptr) {
-    return;
-  }
-
-  auto message_date = get_message_date(ordered_message->message_id_);
-  if (message_date >= min_date) {
-    do_find_messages_by_date(ordered_message->left_.get(), min_date, max_date, get_message_date, message_ids);
-    if (message_date <= max_date) {
-      message_ids.push_back(ordered_message->message_id_);
-    }
-  }
-  if (message_date <= max_date) {
-    do_find_messages_by_date(ordered_message->right_.get(), min_date, max_date, get_message_date, message_ids);
-  }
-}
-
-vector<MessageId> OrderedMessages::find_messages_by_date(
-    int32 min_date, int32 max_date, const std::function<int32(MessageId)> &get_message_date) const {
-  vector<MessageId> message_ids;
-  do_find_messages_by_date(messages_.get(), min_date, max_date, get_message_date, message_ids);
-  return message_ids;
-}
-
-void OrderedMessages::do_traverse_messages(const OrderedMessage *ordered_message,
-                                           const std::function<bool(MessageId)> &need_scan_older,
-                                           const std::function<bool(MessageId)> &need_scan_newer) {
-  if (ordered_message == nullptr) {
-    return;
-  }
-
-  if (need_scan_older(ordered_message->message_id_)) {
-    do_traverse_messages(ordered_message->left_.get(), need_scan_older, need_scan_newer);
-  }
-
-  if (need_scan_newer(ordered_message->message_id_)) {
-    do_traverse_messages(ordered_message->right_.get(), need_scan_older, need_scan_newer);
-  }
-}
-
-void OrderedMessages::traverse_messages(const std::function<bool(MessageId)> &need_scan_older,
-                                        const std::function<bool(MessageId)> &need_scan_newer) const {
-  do_traverse_messages(messages_.get(), need_scan_older, need_scan_newer);
-}
-
-vector<MessageId> OrderedMessages::get_history(MessageId last_message_id, MessageId &from_message_id, int32 &offset,
-                                               int32 &limit, bool force) const {
-  CHECK(limit > 0);
-  bool is_limit_increased = false;
-  if (limit == -offset) {
-    limit++;
-    is_limit_increased = true;
-  }
-  CHECK(-limit < offset && offset <= 0);
-
-  auto it = get_const_iterator(from_message_id);
-  LOG(DEBUG) << "Iterator points to " << (*it ? (*it)->get_message_id() : MessageId());
-  bool from_the_end =
-      (last_message_id != MessageId() && from_message_id > last_message_id) || from_message_id >= MessageId::max();
-
-  if (from_the_end) {
-    limit += offset;
-    offset = 0;
-    if (last_message_id == MessageId()) {
-      it.clear();
-    }
-  } else {
-    bool have_a_gap = false;
-    if (*it == nullptr) {
-      // there is no gap if from_message_id is less than the first message
-      if (force && offset < 0 && messages_ != nullptr) {
-        MessageId min_message_id;
-        traverse_messages(
-            [&](MessageId message_id) {
-              min_message_id = message_id;
-              return true;
-            },
-            [](MessageId) { return false; });
-        CHECK(min_message_id > from_message_id);
-        from_message_id = min_message_id;
-        it = get_const_iterator(from_message_id);
-        CHECK(*it != nullptr);
-      } else {
-        have_a_gap = true;
-      }
-    } else if ((*it)->message_id_ != from_message_id) {
-      CHECK((*it)->message_id_ < from_message_id);
-      if (!(*it)->have_next_ && (last_message_id == MessageId() || (*it)->message_id_ < last_message_id)) {
-        have_a_gap = true;
-      }
-    }
-
-    if (have_a_gap) {
-      LOG(DEBUG) << "Have a gap near message to get message history from";
-      it.clear();
-    }
-    if (*it != nullptr && (*it)->message_id_ == from_message_id) {
-      if (offset < 0) {
-        offset++;
-      } else {
-        --it;
-      }
-    }
-
-    while (*it != nullptr && offset < 0) {
-      ++it;
-      if (*it) {
-        ++offset;
-        from_message_id = (*it)->message_id_;
-      }
-    }
-
-    if (offset < 0 &&
-        ((last_message_id != MessageId() && from_message_id >= last_message_id) || (!have_a_gap && force))) {
-      CHECK(!have_a_gap);
-      limit += offset;
-      offset = 0;
-      it = get_const_iterator(from_message_id);
-    }
-
-    if (!have_a_gap && offset < 0) {
-      offset--;
-    }
-  }
-
-  LOG(INFO) << "Iterator after applying offset points to " << (*it ? (*it)->message_id_ : MessageId())
-            << ", offset = " << offset << ", limit = " << limit << ", from_the_end = " << from_the_end;
-  vector<MessageId> message_ids;
-  if (*it != nullptr && offset == 0) {
-    while (*it != nullptr && message_ids.size() < static_cast<size_t>(limit)) {
-      from_message_id = (*it)->message_id_;
-      message_ids.push_back(from_message_id);
-      from_the_end = false;
-      --it;
-    }
-  }
-  if (from_the_end) {
-    from_message_id = MessageId();
-  }
-
-  if (is_limit_increased && static_cast<size_t>(limit) == message_ids.size()) {
-    message_ids.pop_back();
-  }
-  return message_ids;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/OrderedMessage.h b/third-party/td/td/td/telegram/OrderedMessage.h
deleted file mode 100644
index ec93f03934..0000000000
--- a/third-party/td/td/td/telegram/OrderedMessage.h
+++ /dev/null
@@ -1,228 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageId.h"
-
-#include "td/utils/common.h"
-
-#include <functional>
-
-namespace td {
-
-class OrderedMessage {
- public:
-  MessageId get_message_id() const {
-    return message_id_;
-  }
-
-  bool have_next() const {
-    return have_next_;
-  }
-
- private:
-  int32 random_y_ = 0;
-
-  bool have_previous_ = false;
-  bool have_next_ = false;
-
-  MessageId message_id_;
-
-  unique_ptr<OrderedMessage> left_;
-  unique_ptr<OrderedMessage> right_;
-
-  friend class OrderedMessages;
-};
-
-class OrderedMessages {
- public:
-  class IteratorBase {
-    vector<const OrderedMessage *> stack_;
-
-   protected:
-    IteratorBase() = default;
-
-    // points iterator to message with greatest identifier which is less or equal than message_id
-    IteratorBase(const OrderedMessage *root, MessageId message_id) {
-      CHECK(!message_id.is_scheduled());
-
-      size_t last_right_pos = 0;
-      while (root != nullptr) {
-        stack_.push_back(root);
-        if (root->message_id_ <= message_id) {
-          last_right_pos = stack_.size();
-          root = root->right_.get();
-        } else {
-          root = root->left_.get();
-        }
-      }
-      stack_.resize(last_right_pos);
-    }
-
-    const OrderedMessage *operator*() const {
-      return stack_.empty() ? nullptr : stack_.back();
-    }
-
-    ~IteratorBase() = default;
-
-   public:
-    IteratorBase(const IteratorBase &) = delete;
-    IteratorBase &operator=(const IteratorBase &) = delete;
-    IteratorBase(IteratorBase &&) = default;
-    IteratorBase &operator=(IteratorBase &&) = default;
-
-    void operator++() {
-      if (stack_.empty()) {
-        return;
-      }
-
-      const OrderedMessage *cur = stack_.back();
-      if (!cur->have_next_) {
-        stack_.clear();
-        return;
-      }
-      if (cur->right_ == nullptr) {
-        while (true) {
-          stack_.pop_back();
-          if (stack_.empty()) {
-            return;
-          }
-          const OrderedMessage *new_cur = stack_.back();
-          if (new_cur->left_.get() == cur) {
-            return;
-          }
-          cur = new_cur;
-        }
-      }
-
-      cur = cur->right_.get();
-      while (cur != nullptr) {
-        stack_.push_back(cur);
-        cur = cur->left_.get();
-      }
-    }
-
-    void operator--() {
-      if (stack_.empty()) {
-        return;
-      }
-
-      const OrderedMessage *cur = stack_.back();
-      if (!cur->have_previous_) {
-        stack_.clear();
-        return;
-      }
-      if (cur->left_ == nullptr) {
-        while (true) {
-          stack_.pop_back();
-          if (stack_.empty()) {
-            return;
-          }
-          const OrderedMessage *new_cur = stack_.back();
-          if (new_cur->right_.get() == cur) {
-            return;
-          }
-          cur = new_cur;
-        }
-      }
-
-      cur = cur->left_.get();
-      while (cur != nullptr) {
-        stack_.push_back(cur);
-        cur = cur->right_.get();
-      }
-    }
-
-    void clear() {
-      stack_.clear();
-    }
-  };
-
-  class ConstIterator final : public IteratorBase {
-   public:
-    ConstIterator() = default;
-
-    ConstIterator(const OrderedMessage *root, MessageId message_id) : IteratorBase(root, message_id) {
-    }
-
-    const OrderedMessage *operator*() const {
-      return IteratorBase::operator*();
-    }
-  };
-
-  ConstIterator get_const_iterator(MessageId message_id) const {
-    return ConstIterator(messages_.get(), message_id);
-  }
-
-  void insert(MessageId message_id, bool auto_attach, MessageId old_last_message_id, const char *source);
-
-  void erase(MessageId message_id, bool only_from_memory);
-
-  void attach_message_to_previous(MessageId message_id, const char *source);
-
-  void attach_message_to_next(MessageId message_id, const char *source);
-
-  vector<MessageId> find_older_messages(MessageId max_message_id) const;
-
-  vector<MessageId> find_newer_messages(MessageId min_message_id) const;
-
-  MessageId find_message_by_date(int32 date, const std::function<int32(MessageId)> &get_message_date) const;
-
-  vector<MessageId> find_messages_by_date(int32 min_date, int32 max_date,
-                                          const std::function<int32(MessageId)> &get_message_date) const;
-
-  void traverse_messages(const std::function<bool(MessageId)> &need_scan_older,
-                         const std::function<bool(MessageId)> &need_scan_newer) const;
-
-  // returns identifiers of the requested messages; adjust from_message_id, offset and limit accordingly
-  vector<MessageId> get_history(MessageId last_message_id, MessageId &from_message_id, int32 &offset, int32 &limit,
-                                bool force) const;
-
-  bool empty() const {
-    return messages_ == nullptr;
-  }
-
- private:
-  class Iterator final : public IteratorBase {
-   public:
-    Iterator() = default;
-
-    Iterator(OrderedMessage *root, MessageId message_id) : IteratorBase(root, message_id) {
-    }
-
-    OrderedMessage *operator*() const {
-      return const_cast<OrderedMessage *>(IteratorBase::operator*());
-    }
-  };
-
-  void auto_attach_message(OrderedMessage *message, MessageId last_message_id, const char *source);
-
-  Iterator get_iterator(MessageId message_id) {
-    return Iterator(messages_.get(), message_id);
-  }
-
-  static void do_find_older_messages(const OrderedMessage *ordered_message, MessageId max_message_id,
-                                     vector<MessageId> &message_ids);
-
-  static void do_find_newer_messages(const OrderedMessage *ordered_message, MessageId min_message_id,
-                                     vector<MessageId> &message_ids);
-
-  static MessageId do_find_message_by_date(const OrderedMessage *ordered_message, int32 date,
-                                           const std::function<int32(MessageId)> &get_message_date);
-
-  static void do_find_messages_by_date(const OrderedMessage *ordered_message, int32 min_date, int32 max_date,
-                                       const std::function<int32(MessageId)> &get_message_date,
-                                       vector<MessageId> &message_ids);
-
-  static void do_traverse_messages(const OrderedMessage *ordered_message,
-                                   const std::function<bool(MessageId)> &need_scan_older,
-                                   const std::function<bool(MessageId)> &need_scan_newer);
-
-  unique_ptr<OrderedMessage> messages_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Outline.cpp b/third-party/td/td/td/telegram/Outline.cpp
deleted file mode 100644
index 07be02a8b4..0000000000
--- a/third-party/td/td/td/telegram/Outline.cpp
+++ /dev/null
@@ -1,254 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Outline.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-td_api::object_ptr<td_api::outline> get_outline_object(CSlice path, double zoom, Slice source) {
-  if (path.empty()) {
-    return nullptr;
-  }
-
-  auto buf = StackAllocator::alloc(1 << 9);
-  StringBuilder sb(buf.as_slice(), true);
-
-  sb << 'M';
-  for (unsigned char c : path) {
-    if (c >= 128 + 64) {
-      sb << "AACAAAAHAAALMAAAQASTAVAAAZaacaaaahaaalmaaaqastava.az0123456789-,"[c - 128 - 64];
-    } else {
-      if (c >= 128) {
-        sb << ',';
-      } else if (c >= 64) {
-        sb << '-';
-      }
-      sb << (c & 63);
-    }
-  }
-  sb << 'z';
-
-  CHECK(!sb.is_error());
-  path = sb.as_cslice();
-  LOG(DEBUG) << "Transform SVG path " << path;
-
-  size_t pos = 0;
-  auto skip_commas = [&path, &pos] {
-    while (path[pos] == ',') {
-      pos++;
-    }
-  };
-  auto get_number = [&] {
-    skip_commas();
-    int sign = 1;
-    if (path[pos] == '-') {
-      sign = -1;
-      pos++;
-    }
-    double res = 0;
-    while (is_digit(path[pos])) {
-      res = res * 10 + path[pos++] - '0';
-    }
-    if (path[pos] == '.') {
-      pos++;
-      double mul = 0.1;
-      while (is_digit(path[pos])) {
-        res += (path[pos] - '0') * mul;
-        mul *= 0.1;
-        pos++;
-      }
-    }
-    return sign * res;
-  };
-  auto make_point = [zoom](double x, double y) {
-    return td_api::make_object<td_api::point>(x * zoom, y * zoom);
-  };
-
-  vector<td_api::object_ptr<td_api::closedVectorPath>> result;
-  double x = 0;
-  double y = 0;
-  while (path[pos] != '\0') {
-    skip_commas();
-    if (path[pos] == '\0') {
-      break;
-    }
-
-    while (path[pos] == 'm' || path[pos] == 'M') {
-      auto command = path[pos++];
-      do {
-        if (command == 'm') {
-          x += get_number();
-          y += get_number();
-        } else {
-          x = get_number();
-          y = get_number();
-        }
-        skip_commas();
-      } while (path[pos] != '\0' && !is_alpha(path[pos]));
-    }
-
-    double start_x = x;
-    double start_y = y;
-
-    vector<td_api::object_ptr<td_api::VectorPathCommand>> commands;
-    bool have_last_end_control_point = false;
-    double last_end_control_point_x = 0;
-    double last_end_control_point_y = 0;
-    bool is_closed = false;
-    char command = '-';
-    while (!is_closed) {
-      skip_commas();
-      if (path[pos] == '\0') {
-        LOG(ERROR) << "Receive unclosed path " << path << " from " << source;
-        return nullptr;
-      }
-      if (is_alpha(path[pos])) {
-        command = path[pos++];
-      }
-      switch (command) {
-        case 'l':
-        case 'L':
-        case 'h':
-        case 'H':
-        case 'v':
-        case 'V':
-          if (command == 'l' || command == 'h') {
-            x += get_number();
-          } else if (command == 'L' || command == 'H') {
-            x = get_number();
-          }
-          if (command == 'l' || command == 'v') {
-            y += get_number();
-          } else if (command == 'L' || command == 'V') {
-            y = get_number();
-          }
-          commands.push_back(td_api::make_object<td_api::vectorPathCommandLine>(make_point(x, y)));
-          have_last_end_control_point = false;
-          break;
-        case 'C':
-        case 'c':
-        case 'S':
-        case 's': {
-          double start_control_point_x;
-          double start_control_point_y;
-          if (command == 'S' || command == 's') {
-            if (have_last_end_control_point) {
-              start_control_point_x = 2 * x - last_end_control_point_x;
-              start_control_point_y = 2 * y - last_end_control_point_y;
-            } else {
-              start_control_point_x = x;
-              start_control_point_y = y;
-            }
-          } else {
-            start_control_point_x = get_number();
-            start_control_point_y = get_number();
-            if (command == 'c') {
-              start_control_point_x += x;
-              start_control_point_y += y;
-            }
-          }
-
-          last_end_control_point_x = get_number();
-          last_end_control_point_y = get_number();
-          if (command == 'c' || command == 's') {
-            last_end_control_point_x += x;
-            last_end_control_point_y += y;
-          }
-          have_last_end_control_point = true;
-
-          if (command == 'c' || command == 's') {
-            x += get_number();
-            y += get_number();
-          } else {
-            x = get_number();
-            y = get_number();
-          }
-
-          commands.push_back(td_api::make_object<td_api::vectorPathCommandCubicBezierCurve>(
-              make_point(start_control_point_x, start_control_point_y),
-              make_point(last_end_control_point_x, last_end_control_point_y), make_point(x, y)));
-          break;
-        }
-        case 'm':
-        case 'M':
-          pos--;
-          // fallthrough
-        case 'z':
-        case 'Z':
-          if (x != start_x || y != start_y) {
-            x = start_x;
-            y = start_y;
-            commands.push_back(td_api::make_object<td_api::vectorPathCommandLine>(make_point(x, y)));
-          }
-          if (!commands.empty()) {
-            result.push_back(td_api::make_object<td_api::closedVectorPath>(std::move(commands)));
-            commands.clear();
-          }
-          is_closed = true;
-          break;
-        default:
-          LOG(ERROR) << "Receive invalid command " << command << " at pos " << pos << " from " << source << ": "
-                     << path;
-          return nullptr;
-      }
-    }
-  }
-  /*
-  string svg;
-  for (const auto &vector_path : result) {
-    CHECK(!vector_path->commands_.empty());
-    svg += 'M';
-    auto add_point = [&](const td_api::object_ptr<td_api::point> &p) {
-      svg += to_string(static_cast<int>(p->x_));
-      svg += ',';
-      svg += to_string(static_cast<int>(p->y_));
-      svg += ',';
-    };
-    auto last_command = vector_path->commands_.back().get();
-    switch (last_command->get_id()) {
-      case td_api::vectorPathCommandLine::ID:
-        add_point(static_cast<const td_api::vectorPathCommandLine *>(last_command)->end_point_);
-        break;
-      case td_api::vectorPathCommandCubicBezierCurve::ID:
-        add_point(static_cast<const td_api::vectorPathCommandCubicBezierCurve *>(last_command)->end_point_);
-        break;
-      default:
-        UNREACHABLE();
-    }
-    for (auto &command : vector_path->commands_) {
-      switch (command->get_id()) {
-        case td_api::vectorPathCommandLine::ID: {
-          auto line = static_cast<const td_api::vectorPathCommandLine *>(command.get());
-          svg += 'L';
-          add_point(line->end_point_);
-          break;
-        }
-        case td_api::vectorPathCommandCubicBezierCurve::ID: {
-          auto curve = static_cast<const td_api::vectorPathCommandCubicBezierCurve *>(command.get());
-          svg += 'C';
-          add_point(curve->start_control_point_);
-          add_point(curve->end_control_point_);
-          add_point(curve->end_point_);
-          break;
-        }
-        default:
-          UNREACHABLE();
-      }
-    }
-    svg += 'z';
-  }
-  */
-
-  return td_api::make_object<td_api::outline>(std::move(result));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Outline.h b/third-party/td/td/td/telegram/Outline.h
deleted file mode 100644
index c9dd08dfdf..0000000000
--- a/third-party/td/td/td/telegram/Outline.h
+++ /dev/null
@@ -1,17 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/Slice.h"
-
-namespace td {
-
-td_api::object_ptr<td_api::outline> get_outline_object(CSlice path, double zoom, Slice source);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PaidReactionType.cpp b/third-party/td/td/td/telegram/PaidReactionType.cpp
deleted file mode 100644
index 50c1cdaa35..0000000000
--- a/third-party/td/td/td/telegram/PaidReactionType.cpp
+++ /dev/null
@@ -1,164 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PaidReactionType.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/InputDialogId.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-PaidReactionType::PaidReactionType(Td *td, const telegram_api::object_ptr<telegram_api::PaidReactionPrivacy> &type) {
-  CHECK(type != nullptr);
-  switch (type->get_id()) {
-    case telegram_api::paidReactionPrivacyDefault::ID:
-      break;
-    case telegram_api::paidReactionPrivacyAnonymous::ID:
-      type_ = Type::Anonymous;
-      break;
-    case telegram_api::paidReactionPrivacyPeer::ID: {
-      auto input_dialog_id =
-          InputDialogId(static_cast<const telegram_api::paidReactionPrivacyPeer *>(type.get())->peer_);
-      auto dialog_id = input_dialog_id.get_dialog_id();
-      if (td->dialog_manager_->have_dialog_info(dialog_id)) {
-        td->dialog_manager_->force_create_dialog(dialog_id, "PaidReactionType");
-        type_ = Type::Dialog;
-        dialog_id_ = dialog_id;
-      } else {
-        LOG(ERROR) << "Receive paid reaction type " << dialog_id;
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-PaidReactionType::PaidReactionType(Td *td, const td_api::object_ptr<td_api::PaidReactionType> &type) {
-  if (type == nullptr) {
-    return;
-  }
-  switch (type->get_id()) {
-    case td_api::paidReactionTypeRegular::ID:
-      break;
-    case td_api::paidReactionTypeAnonymous::ID:
-      type_ = Type::Anonymous;
-      break;
-    case td_api::paidReactionTypeChat::ID: {
-      type_ = Type::Dialog;
-      auto dialog_id = DialogId(static_cast<const td_api::paidReactionTypeChat *>(type.get())->chat_id_);
-      if (td->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write, "PaidReactionType")
-              .is_error() ||
-          !td->dialog_manager_->is_broadcast_channel(dialog_id)) {
-        break;
-      }
-      dialog_id_ = dialog_id;
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-PaidReactionType PaidReactionType::legacy(bool is_anonymous) {
-  PaidReactionType result;
-  if (is_anonymous) {
-    result.type_ = Type::Anonymous;
-  }
-  return result;
-}
-
-PaidReactionType PaidReactionType::dialog(DialogId dialog_id) {
-  PaidReactionType result;
-  result.type_ = Type::Dialog;
-  result.dialog_id_ = dialog_id;
-  return result;
-}
-
-telegram_api::object_ptr<telegram_api::PaidReactionPrivacy> PaidReactionType::get_input_paid_reaction_privacy(
-    Td *td) const {
-  switch (type_) {
-    case Type::Regular:
-      return telegram_api::make_object<telegram_api::paidReactionPrivacyDefault>();
-    case Type::Anonymous:
-      return telegram_api::make_object<telegram_api::paidReactionPrivacyAnonymous>();
-    case Type::Dialog: {
-      auto input_peer = td->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-      if (input_peer == nullptr) {
-        return telegram_api::make_object<telegram_api::paidReactionPrivacyAnonymous>();
-      }
-      return telegram_api::make_object<telegram_api::paidReactionPrivacyPeer>(std::move(input_peer));
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::PaidReactionType> PaidReactionType::get_paid_reaction_type_object(Td *td) const {
-  switch (type_) {
-    case Type::Regular:
-      return td_api::make_object<td_api::paidReactionTypeRegular>();
-    case Type::Anonymous:
-      return td_api::make_object<td_api::paidReactionTypeAnonymous>();
-    case Type::Dialog:
-      return td_api::make_object<td_api::paidReactionTypeChat>(
-          td->dialog_manager_->get_chat_id_object(dialog_id_, "get_paid_reaction_type_object"));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::updateDefaultPaidReactionType> PaidReactionType::get_update_default_paid_reaction_type(
-    Td *td) const {
-  return td_api::make_object<td_api::updateDefaultPaidReactionType>(get_paid_reaction_type_object(td));
-}
-
-DialogId PaidReactionType::get_dialog_id(DialogId my_dialog_id) const {
-  switch (type_) {
-    case Type::Regular:
-      return my_dialog_id;
-    case Type::Anonymous:
-      return DialogId();
-    case Type::Dialog:
-      return dialog_id_;
-    default:
-      UNREACHABLE();
-      return DialogId();
-  }
-}
-
-void PaidReactionType::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add_dialog_and_dependencies(dialog_id_);
-}
-
-bool operator==(const PaidReactionType &lhs, const PaidReactionType &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.dialog_id_ == rhs.dialog_id_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const PaidReactionType &paid_reaction_type) {
-  switch (paid_reaction_type.type_) {
-    case PaidReactionType::Type::Regular:
-      return string_builder << "non-anonymous paid reaction";
-    case PaidReactionType::Type::Anonymous:
-      return string_builder << "anonymous paid reaction";
-    case PaidReactionType::Type::Dialog:
-      return string_builder << "paid reaction via " << paid_reaction_type.dialog_id_;
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PaidReactionType.h b/third-party/td/td/td/telegram/PaidReactionType.h
deleted file mode 100644
index 31e29af25a..0000000000
--- a/third-party/td/td/td/telegram/PaidReactionType.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class PaidReactionType {
-  enum class Type : int32 { Regular, Anonymous, Dialog };
-  Type type_ = Type::Regular;
-  DialogId dialog_id_;
-
-  friend bool operator==(const PaidReactionType &lhs, const PaidReactionType &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const PaidReactionType &paid_reaction_type);
-
- public:
-  PaidReactionType() = default;
-
-  PaidReactionType(Td *td, const telegram_api::object_ptr<telegram_api::PaidReactionPrivacy> &reaction);
-
-  PaidReactionType(Td *td, const td_api::object_ptr<td_api::PaidReactionType> &type);
-
-  static PaidReactionType legacy(bool is_anonymous);
-
-  static PaidReactionType dialog(DialogId dialog_id);
-
-  telegram_api::object_ptr<telegram_api::PaidReactionPrivacy> get_input_paid_reaction_privacy(Td *td) const;
-
-  td_api::object_ptr<td_api::PaidReactionType> get_paid_reaction_type_object(Td *td) const;
-
-  td_api::object_ptr<td_api::updateDefaultPaidReactionType> get_update_default_paid_reaction_type(Td *td) const;
-
-  bool is_valid() const {
-    return type_ == Type::Dialog ? dialog_id_.is_valid() : true;
-  }
-
-  DialogId get_dialog_id(DialogId my_dialog_id) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const PaidReactionType &lhs, const PaidReactionType &rhs);
-
-inline bool operator!=(const PaidReactionType &lhs, const PaidReactionType &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const PaidReactionType &paid_reaction_type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PaidReactionType.hpp b/third-party/td/td/td/telegram/PaidReactionType.hpp
deleted file mode 100644
index 40ec712648..0000000000
--- a/third-party/td/td/td/telegram/PaidReactionType.hpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/PaidReactionType.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void PaidReactionType::store(StorerT &storer) const {
-  bool has_dialog_id = dialog_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_dialog_id);
-  END_STORE_FLAGS();
-  td::store(type_, storer);
-  if (has_dialog_id) {
-    td::store(dialog_id_, storer);
-  }
-}
-
-template <class ParserT>
-void PaidReactionType::parse(ParserT &parser) {
-  bool has_dialog_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_dialog_id);
-  END_PARSE_FLAGS();
-  td::parse(type_, parser);
-  if (has_dialog_id) {
-    td::parse(dialog_id_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PasswordManager.cpp b/third-party/td/td/td/telegram/PasswordManager.cpp
deleted file mode 100644
index bdf0d78a06..0000000000
--- a/third-party/td/td/td/telegram/PasswordManager.cpp
+++ /dev/null
@@ -1,871 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PasswordManager.h"
-
-#include "td/telegram/DhCache.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/SuggestedActionManager.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/mtproto/DhHandshake.h"
-
-#include "td/utils/BigNum.h"
-#include "td/utils/buffer.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-tl_object_ptr<td_api::temporaryPasswordState> TempPasswordState::get_temporary_password_state_object() const {
-  auto unix_time = G()->unix_time();
-  if (!has_temp_password || valid_until <= unix_time) {
-    return make_tl_object<td_api::temporaryPasswordState>(false, 0);
-  }
-  return make_tl_object<td_api::temporaryPasswordState>(true, valid_until - unix_time);
-}
-
-static void hash_sha256(Slice data, Slice salt, MutableSlice dest) {
-  sha256(PSLICE() << salt << data << salt, dest);
-}
-
-BufferSlice PasswordManager::calc_password_hash(Slice password, Slice client_salt, Slice server_salt) {
-  LOG(INFO) << "Begin password hash calculation";
-  BufferSlice buf(32);
-  hash_sha256(password, client_salt, buf.as_mutable_slice());
-  hash_sha256(buf.as_slice(), server_salt, buf.as_mutable_slice());
-  BufferSlice hash(64);
-  pbkdf2_sha512(buf.as_slice(), client_salt, 100000, hash.as_mutable_slice());
-  hash_sha256(hash.as_slice(), server_salt, buf.as_mutable_slice());
-  LOG(INFO) << "End password hash calculation";
-  return buf;
-}
-
-Result<BufferSlice> PasswordManager::calc_password_srp_hash(Slice password, Slice client_salt, Slice server_salt,
-                                                            int32 g, Slice p) {
-  LOG(INFO) << "Begin password SRP hash calculation";
-  TRY_STATUS(mtproto::DhHandshake::check_config(g, p, DhCache::instance()));
-
-  auto hash = calc_password_hash(password, client_salt, server_salt);
-  auto p_bn = BigNum::from_binary(p);
-  BigNum g_bn;
-  g_bn.set_value(g);
-  auto x_bn = BigNum::from_binary(hash.as_slice());
-
-  BigNumContext ctx;
-  BigNum v_bn;
-  BigNum::mod_exp(v_bn, g_bn, x_bn, p_bn, ctx);
-
-  BufferSlice result(v_bn.to_binary(256));
-  LOG(INFO) << "End password SRP hash calculation";
-  return std::move(result);
-}
-
-tl_object_ptr<telegram_api::InputCheckPasswordSRP> PasswordManager::get_input_check_password(
-    Slice password, Slice client_salt, Slice server_salt, int32 g, Slice p, Slice B, int64 id) {
-  if (password.empty()) {
-    return make_tl_object<telegram_api::inputCheckPasswordEmpty>();
-  }
-
-  if (mtproto::DhHandshake::check_config(g, p, DhCache::instance()).is_error()) {
-    LOG(ERROR) << "Receive invalid config " << g << " " << format::escaped(p);
-    return make_tl_object<telegram_api::inputCheckPasswordEmpty>();
-  }
-
-  auto p_bn = BigNum::from_binary(p);
-  auto B_bn = BigNum::from_binary(B);
-  auto zero = BigNum::from_decimal("0").move_as_ok();
-  if (BigNum::compare(zero, B_bn) != -1 || BigNum::compare(B_bn, p_bn) != -1 || B.size() < 248 || B.size() > 256) {
-    LOG(ERROR) << "Receive invalid value of B(" << B.size() << "): " << B_bn << " " << p_bn;
-    return make_tl_object<telegram_api::inputCheckPasswordEmpty>();
-  }
-
-  LOG(INFO) << "Begin input password SRP hash calculation";
-  BigNum g_bn;
-  g_bn.set_value(g);
-  auto g_padded = g_bn.to_binary(256);
-
-  auto x = calc_password_hash(password, client_salt, server_salt);
-  auto x_bn = BigNum::from_binary(x.as_slice());
-
-  BufferSlice a(2048 / 8);
-  Random::secure_bytes(a.as_mutable_slice());
-  auto a_bn = BigNum::from_binary(a.as_slice());
-
-  BigNumContext ctx;
-  BigNum A_bn;
-  BigNum::mod_exp(A_bn, g_bn, a_bn, p_bn, ctx);
-  string A = A_bn.to_binary(256);
-
-  string B_pad(256 - B.size(), '\0');
-  string u = sha256(PSLICE() << A << B_pad << B);
-  auto u_bn = BigNum::from_binary(u);
-  string k = sha256(PSLICE() << p << g_padded);
-  auto k_bn = BigNum::from_binary(k);
-
-  BigNum v_bn;
-  BigNum::mod_exp(v_bn, g_bn, x_bn, p_bn, ctx);
-  BigNum kv_bn;
-  BigNum::mod_mul(kv_bn, k_bn, v_bn, p_bn, ctx);
-  BigNum t_bn;
-  BigNum::sub(t_bn, B_bn, kv_bn);
-  if (BigNum::compare(t_bn, zero) == -1) {
-    BigNum::add(t_bn, t_bn, p_bn);
-  }
-  BigNum exp_bn;
-  BigNum::mul(exp_bn, u_bn, x_bn, ctx);
-  BigNum::add(exp_bn, exp_bn, a_bn);
-
-  BigNum S_bn;
-  BigNum::mod_exp(S_bn, t_bn, exp_bn, p_bn, ctx);
-  string S = S_bn.to_binary(256);
-  auto K = sha256(S);
-
-  auto h1 = sha256(p);
-  auto h2 = sha256(g_padded);
-  for (size_t i = 0; i < h1.size(); i++) {
-    h1[i] = static_cast<char>(static_cast<unsigned char>(h1[i]) ^ static_cast<unsigned char>(h2[i]));
-  }
-  auto M = sha256(PSLICE() << h1 << sha256(client_salt) << sha256(server_salt) << A << B_pad << B << K);
-
-  LOG(INFO) << "End input password SRP hash calculation";
-  return make_tl_object<telegram_api::inputCheckPasswordSRP>(id, BufferSlice(A), BufferSlice(M));
-}
-
-tl_object_ptr<telegram_api::InputCheckPasswordSRP> PasswordManager::get_input_check_password(
-    Slice password, const PasswordState &state) {
-  return get_input_check_password(password, state.current_client_salt, state.current_server_salt, state.current_srp_g,
-                                  state.current_srp_p, state.current_srp_B, state.current_srp_id);
-}
-
-void PasswordManager::get_input_check_password_srp(
-    string password, Promise<tl_object_ptr<telegram_api::InputCheckPasswordSRP>> &&promise) {
-  do_get_state(PromiseCreator::lambda(
-      [promise = std::move(promise), password = std::move(password)](Result<PasswordState> r_state) mutable {
-        if (r_state.is_error()) {
-          return promise.set_error(r_state.move_as_error());
-        }
-        promise.set_value(PasswordManager::get_input_check_password(password, r_state.move_as_ok()));
-      }));
-}
-
-void PasswordManager::set_password(string current_password, string new_password, string new_hint,
-                                   bool set_recovery_email_address, string recovery_email_address,
-                                   Promise<State> promise) {
-  UpdateSettings update_settings;
-
-  update_settings.current_password = std::move(current_password);
-  update_settings.update_password = true;
-  //update_settings.update_secure_secret = true;
-  update_settings.new_password = std::move(new_password);
-  update_settings.new_hint = std::move(new_hint);
-
-  if (set_recovery_email_address) {
-    update_settings.update_recovery_email_address = true;
-    update_settings.recovery_email_address = std::move(recovery_email_address);
-  }
-
-  update_password_settings(std::move(update_settings), std::move(promise));
-}
-
-void PasswordManager::set_login_email_address(string new_login_email_address, Promise<SentEmailCode> promise) {
-  last_set_login_email_address_ = new_login_email_address;
-  auto query = G()->net_query_creator().create(telegram_api::account_sendVerifyEmailCode(
-      make_tl_object<telegram_api::emailVerifyPurposeLoginChange>(), std::move(new_login_email_address)));
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      TRY_RESULT_PROMISE(promise, result,
-                                         fetch_result<telegram_api::account_sendVerifyEmailCode>(std::move(r_query)));
-                      promise.set_value(SentEmailCode(std::move(result)));
-                    }));
-}
-
-void PasswordManager::resend_login_email_address_code(Promise<SentEmailCode> promise) {
-  if (last_set_login_email_address_.empty()) {
-    return promise.set_error(Status::Error(400, "No login email address code was sent"));
-  }
-  set_login_email_address(last_set_login_email_address_, std::move(promise));
-}
-
-void PasswordManager::check_login_email_address_code(EmailVerification &&code, Promise<Unit> promise) {
-  if (last_set_login_email_address_.empty()) {
-    return promise.set_error(Status::Error(400, "No login email address code was sent"));
-  }
-  if (code.is_empty()) {
-    return promise.set_error(Status::Error(400, "Verification code must be non-empty"));
-  }
-  auto query = G()->net_query_creator().create(telegram_api::account_verifyEmail(
-      make_tl_object<telegram_api::emailVerifyPurposeLoginChange>(), code.get_input_email_verification()));
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      TRY_STATUS_PROMISE(promise, fetch_result<telegram_api::account_verifyEmail>(std::move(r_query)));
-                      promise.set_value(Unit());
-                    }));
-}
-
-void PasswordManager::set_recovery_email_address(string password, string new_recovery_email_address,
-                                                 Promise<State> promise) {
-  UpdateSettings update_settings;
-  update_settings.current_password = std::move(password);
-  update_settings.update_recovery_email_address = true;
-  update_settings.recovery_email_address = std::move(new_recovery_email_address);
-
-  update_password_settings(std::move(update_settings), std::move(promise));
-}
-
-void PasswordManager::get_secure_secret(string password, Promise<secure_storage::Secret> promise) {
-  return do_get_secure_secret(true, std::move(password), std::move(promise));
-}
-
-void PasswordManager::do_get_secure_secret(bool allow_recursive, string password,
-                                           Promise<secure_storage::Secret> promise) {
-  if (secret_) {
-    return promise.set_value(secret_.value().clone());
-  }
-  if (password.empty()) {
-    return promise.set_error(Status::Error(400, "PASSWORD_HASH_INVALID"));
-  }
-  get_full_state(
-      password, PromiseCreator::lambda([actor_id = actor_id(this), password, allow_recursive,
-                                        promise = std::move(promise)](Result<PasswordFullState> r_state) mutable {
-        if (r_state.is_error()) {
-          return promise.set_error(r_state.move_as_error());
-        }
-        auto state = r_state.move_as_ok();
-        if (!state.state.has_password) {
-          return promise.set_error(Status::Error(400, "2-step verification is disabled"));
-        }
-        if (state.private_state.secret) {
-          send_closure(actor_id, &PasswordManager::cache_secret, state.private_state.secret.value().clone());
-          return promise.set_value(std::move(state.private_state.secret.value()));
-        }
-        if (!allow_recursive) {
-          return promise.set_error(Status::Error(400, "Failed to get Telegram Passport secret"));
-        }
-
-        auto new_promise =
-            PromiseCreator::lambda([actor_id, password, promise = std::move(promise)](Result<bool> r_ok) mutable {
-              if (r_ok.is_error()) {
-                return promise.set_error(r_ok.move_as_error());
-              }
-              send_closure(actor_id, &PasswordManager::do_get_secure_secret, false, std::move(password),
-                           std::move(promise));
-            });
-
-        UpdateSettings update_settings;
-        update_settings.current_password = password;
-        update_settings.update_secure_secret = true;
-        send_closure(actor_id, &PasswordManager::do_update_password_settings, std::move(update_settings),
-                     std::move(state), std::move(new_promise));
-      }));
-}
-
-void PasswordManager::get_temp_password_state(Promise<TempState> promise) /*const*/ {
-  promise.set_value(temp_password_state_.get_temporary_password_state_object());
-}
-
-TempPasswordState PasswordManager::get_temp_password_state_sync() {
-  auto temp_password_str = G()->td_db()->get_binlog_pmc()->get("temp_password");
-  TempPasswordState res;
-  auto status = log_event_parse(res, temp_password_str);
-  if (status.is_error() || res.valid_until <= G()->unix_time()) {
-    res = TempPasswordState();
-  }
-  return res;
-}
-
-void PasswordManager::create_temp_password(string password, int32 timeout, Promise<TempState> promise) {
-  if (create_temp_password_promise_) {
-    return promise.set_error(Status::Error(400, "Another create_temp_password query is active"));
-  }
-  create_temp_password_promise_ = std::move(promise);
-
-  auto new_promise = PromiseCreator::lambda([actor_id = actor_id(this)](Result<TempPasswordState> result) {
-    send_closure(actor_id, &PasswordManager::on_finish_create_temp_password, std::move(result), false);
-  });
-
-  do_get_state(PromiseCreator::lambda([actor_id = actor_id(this), password = std::move(password), timeout,
-                                       promise = std::move(new_promise)](Result<PasswordState> r_state) mutable {
-    if (r_state.is_error()) {
-      return promise.set_error(r_state.move_as_error());
-    }
-    send_closure(actor_id, &PasswordManager::do_create_temp_password, std::move(password), timeout,
-                 r_state.move_as_ok(), std::move(promise));
-  }));
-}
-
-void PasswordManager::drop_temp_password() {
-  G()->td_db()->get_binlog_pmc()->erase("temp_password");
-  temp_password_state_ = TempPasswordState();
-}
-
-void PasswordManager::do_create_temp_password(string password, int32 timeout, PasswordState &&password_state,
-                                              Promise<TempPasswordState> promise) {
-  auto hash = get_input_check_password(password, password_state);
-  send_with_promise(G()->net_query_creator().create(telegram_api::account_getTmpPassword(std::move(hash), timeout)),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      TRY_RESULT_PROMISE(promise, result,
-                                         fetch_result<telegram_api::account_getTmpPassword>(std::move(r_query)));
-                      TempPasswordState res;
-                      res.has_temp_password = true;
-                      res.temp_password = result->tmp_password_.as_slice().str();
-                      res.valid_until = result->valid_until_;
-                      promise.set_value(std::move(res));
-                    }));
-}
-
-void PasswordManager::on_finish_create_temp_password(Result<TempPasswordState> result, bool /*dummy*/) {
-  CHECK(create_temp_password_promise_);
-  if (result.is_error()) {
-    drop_temp_password();
-    return create_temp_password_promise_.set_error(result.move_as_error());
-  }
-  temp_password_state_ = result.move_as_ok();
-  G()->td_db()->get_binlog_pmc()->set("temp_password", log_event_store(temp_password_state_).as_slice().str());
-  create_temp_password_promise_.set_value(temp_password_state_.get_temporary_password_state_object());
-}
-
-void PasswordManager::get_full_state(string password, Promise<PasswordFullState> promise) {
-  send_closure(G()->suggested_action_manager(), &SuggestedActionManager::hide_suggested_action,
-               SuggestedAction{SuggestedAction::Type::CheckPassword});
-
-  do_get_state(PromiseCreator::lambda([actor_id = actor_id(this), password = std::move(password),
-                                       promise = std::move(promise)](Result<PasswordState> r_state) mutable {
-    if (r_state.is_error()) {
-      return promise.set_error(r_state.move_as_error());
-    }
-    send_closure(actor_id, &PasswordManager::do_get_full_state, std::move(password), r_state.move_as_ok(),
-                 std::move(promise));
-  }));
-}
-
-Result<secure_storage::Secret> PasswordManager::decrypt_secure_secret(
-    Slice password, tl_object_ptr<telegram_api::SecurePasswordKdfAlgo> algo_ptr, Slice secret, int64 secret_id) {
-  TRY_RESULT(encrypted_secret, secure_storage::EncryptedSecret::create(secret));
-
-  CHECK(algo_ptr != nullptr);
-  BufferSlice salt;
-  secure_storage::EnryptionAlgorithm algorithm = secure_storage::EnryptionAlgorithm::Pbkdf2;
-  switch (algo_ptr->get_id()) {
-    case telegram_api::securePasswordKdfAlgoUnknown::ID:
-      return Status::Error(400, "Unsupported algorithm");
-    case telegram_api::securePasswordKdfAlgoSHA512::ID: {
-      auto algo = move_tl_object_as<telegram_api::securePasswordKdfAlgoSHA512>(algo_ptr);
-      salt = std::move(algo->salt_);
-      algorithm = secure_storage::EnryptionAlgorithm::Sha512;
-      break;
-    }
-    case telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000::ID: {
-      auto algo = move_tl_object_as<telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000>(algo_ptr);
-      salt = std::move(algo->salt_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  TRY_RESULT(result, encrypted_secret.decrypt(password, salt.as_slice(), algorithm));
-  if (secret_id != result.get_hash()) {
-    return Status::Error("Secret hash mismatch");
-  }
-  return result;
-}
-
-void PasswordManager::do_get_full_state(string password, PasswordState state, Promise<PasswordFullState> promise) {
-  if (!state.has_password) {
-    PasswordFullState result;
-    result.state = std::move(state);
-    return promise.set_value(std::move(result));
-  }
-
-  auto hash = get_input_check_password(password, state);
-  send_with_promise(G()->net_query_creator().create(telegram_api::account_getPasswordSettings(std::move(hash))),
-                    PromiseCreator::lambda([promise = std::move(promise), state = std::move(state),
-                                            password](Result<NetQueryPtr> r_query) mutable {
-                      promise.set_result([&]() -> Result<PasswordFullState> {
-                        TRY_RESULT(result, fetch_result<telegram_api::account_getPasswordSettings>(std::move(r_query)));
-                        LOG(INFO) << "Receive password settings: " << to_string(result);
-                        PasswordPrivateState private_state;
-                        private_state.email = std::move(result->email_);
-
-                        if (result->secure_settings_ != nullptr) {
-                          auto r_secret =
-                              decrypt_secure_secret(password, std::move(result->secure_settings_->secure_algo_),
-                                                    result->secure_settings_->secure_secret_.as_slice(),
-                                                    result->secure_settings_->secure_secret_id_);
-                          if (r_secret.is_ok()) {
-                            private_state.secret = r_secret.move_as_ok();
-                          }
-                        }
-
-                        return PasswordFullState{std::move(state), std::move(private_state)};
-                      }());
-                    }));
-}
-
-void PasswordManager::get_recovery_email_address(string password,
-                                                 Promise<tl_object_ptr<td_api::recoveryEmailAddress>> promise) {
-  get_full_state(
-      password,
-      PromiseCreator::lambda([password, promise = std::move(promise)](Result<PasswordFullState> r_state) mutable {
-        if (r_state.is_error()) {
-          return promise.set_error(r_state.move_as_error());
-        }
-        auto state = r_state.move_as_ok();
-        return promise.set_value(make_tl_object<td_api::recoveryEmailAddress>(state.private_state.email));
-      }));
-}
-
-void PasswordManager::check_recovery_email_address_code(string code, Promise<State> promise) {
-  auto query = G()->net_query_creator().create(telegram_api::account_confirmPasswordEmail(std::move(code)));
-  send_with_promise(std::move(query), PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                                                 Result<NetQueryPtr> r_query) mutable {
-                      auto r_result = fetch_result<telegram_api::account_confirmPasswordEmail>(std::move(r_query));
-                      if (r_result.is_error() && r_result.error().message() != "EMAIL_HASH_EXPIRED" &&
-                          r_result.error().message() != "CODE_INVALID") {
-                        return promise.set_error(r_result.move_as_error());
-                      }
-                      send_closure(actor_id, &PasswordManager::get_state, std::move(promise));
-                    }));
-}
-
-void PasswordManager::resend_recovery_email_address_code(Promise<State> promise) {
-  auto query = G()->net_query_creator().create(telegram_api::account_resendPasswordEmail());
-  send_with_promise(std::move(query), PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                                                 Result<NetQueryPtr> r_query) mutable {
-                      auto r_result = fetch_result<telegram_api::account_resendPasswordEmail>(std::move(r_query));
-                      if (r_result.is_error() && r_result.error().message() != "EMAIL_HASH_EXPIRED") {
-                        return promise.set_error(r_result.move_as_error());
-                      }
-                      send_closure(actor_id, &PasswordManager::get_state, std::move(promise));
-                    }));
-}
-
-void PasswordManager::cancel_recovery_email_address_verification(Promise<State> promise) {
-  auto query = G()->net_query_creator().create(telegram_api::account_cancelPasswordEmail());
-  send_with_promise(std::move(query), PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                                                 Result<NetQueryPtr> r_query) mutable {
-                      auto r_result = fetch_result<telegram_api::account_cancelPasswordEmail>(std::move(r_query));
-                      if (r_result.is_error() && r_result.error().message() != "EMAIL_HASH_EXPIRED") {
-                        return promise.set_error(r_result.move_as_error());
-                      }
-                      send_closure(actor_id, &PasswordManager::get_state, std::move(promise));
-                    }));
-}
-
-void PasswordManager::send_email_address_verification_code(string email, Promise<SentEmailCode> promise) {
-  last_verified_email_address_ = email;
-  auto query = G()->net_query_creator().create(telegram_api::account_sendVerifyEmailCode(
-      make_tl_object<telegram_api::emailVerifyPurposePassport>(), std::move(email)));
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      TRY_RESULT_PROMISE(promise, result,
-                                         fetch_result<telegram_api::account_sendVerifyEmailCode>(std::move(r_query)));
-                      promise.set_value(SentEmailCode(std::move(result)));
-                    }));
-}
-
-void PasswordManager::resend_email_address_verification_code(Promise<SentEmailCode> promise) {
-  if (last_verified_email_address_.empty()) {
-    return promise.set_error(Status::Error(400, "No email address verification was sent"));
-  }
-  send_email_address_verification_code(last_verified_email_address_, std::move(promise));
-}
-
-void PasswordManager::check_email_address_verification_code(string code, Promise<Unit> promise) {
-  if (last_verified_email_address_.empty()) {
-    return promise.set_error(Status::Error(400, "No email address verification was sent"));
-  }
-  auto verification_code = make_tl_object<telegram_api::emailVerificationCode>(std::move(code));
-  auto query = G()->net_query_creator().create(telegram_api::account_verifyEmail(
-      make_tl_object<telegram_api::emailVerifyPurposePassport>(), std::move(verification_code)));
-  send_with_promise(std::move(query),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      TRY_STATUS_PROMISE(promise, fetch_result<telegram_api::account_verifyEmail>(std::move(r_query)));
-                      promise.set_value(Unit());
-                    }));
-}
-
-void PasswordManager::request_password_recovery(Promise<SentEmailCode> promise) {
-  // is called only after authorization
-  send_with_promise(G()->net_query_creator().create(telegram_api::auth_requestPasswordRecovery()),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      TRY_RESULT_PROMISE(promise, result,
-                                         fetch_result<telegram_api::auth_requestPasswordRecovery>(std::move(r_query)));
-                      return promise.set_value(SentEmailCode(std::move(result->email_pattern_), 0));
-                    }));
-}
-
-void PasswordManager::check_password_recovery_code(string code, Promise<Unit> promise) {
-  // is called only after authorization
-  send_with_promise(G()->net_query_creator().create(telegram_api::auth_checkRecoveryPassword(code)),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      TRY_RESULT_PROMISE(promise, result,
-                                         fetch_result<telegram_api::auth_checkRecoveryPassword>(std::move(r_query)));
-                      if (!result) {
-                        return promise.set_error(Status::Error(400, "Invalid recovery code"));
-                      }
-                      promise.set_value(Unit());
-                    }));
-}
-
-void PasswordManager::recover_password(string code, string new_password, string new_hint, Promise<State> promise) {
-  // is called only after authorization
-  if (new_password.empty()) {
-    return do_recover_password(std::move(code), nullptr, std::move(promise));
-  }
-
-  UpdateSettings update_settings;
-  update_settings.update_password = true;
-  update_settings.new_password = std::move(new_password);
-  update_settings.new_hint = std::move(new_hint);
-
-  do_get_state(PromiseCreator::lambda([actor_id = actor_id(this), code = std::move(code),
-                                       update_settings = std::move(update_settings),
-                                       promise = std::move(promise)](Result<PasswordState> r_state) mutable {
-    if (r_state.is_error()) {
-      return promise.set_error(r_state.move_as_error());
-    }
-
-    TRY_RESULT_PROMISE(
-        promise, new_settings,
-        get_password_input_settings(update_settings, r_state.ok().has_password, r_state.ok().new_state, nullptr));
-
-    send_closure(actor_id, &PasswordManager::do_recover_password, std::move(code), std::move(new_settings),
-                 std::move(promise));
-  }));
-}
-
-void PasswordManager::do_recover_password(string code, PasswordInputSettings &&new_settings, Promise<State> &&promise) {
-  int32 flags = 0;
-  if (new_settings != nullptr) {
-    flags |= telegram_api::auth_recoverPassword::NEW_SETTINGS_MASK;
-  }
-  send_with_promise(G()->net_query_creator().create(
-                        telegram_api::auth_recoverPassword(flags, std::move(code), std::move(new_settings))),
-                    PromiseCreator::lambda([actor_id = actor_id(this),
-                                            promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      TRY_STATUS_PROMISE(promise, fetch_result<telegram_api::auth_recoverPassword>(std::move(r_query)));
-                      send_closure(actor_id, &PasswordManager::get_state, std::move(promise));
-                    }));
-}
-
-void PasswordManager::reset_password(Promise<ResetPasswordResult> promise) {
-  send_with_promise(
-      G()->net_query_creator().create(telegram_api::account_resetPassword()),
-      PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-        TRY_RESULT_PROMISE(promise, result_ptr, fetch_result<telegram_api::account_resetPassword>(std::move(r_query)));
-        switch (result_ptr->get_id()) {
-          case telegram_api::account_resetPasswordOk::ID:
-            return promise.set_value(td_api::make_object<td_api::resetPasswordResultOk>());
-          case telegram_api::account_resetPasswordRequestedWait::ID: {
-            auto result = move_tl_object_as<telegram_api::account_resetPasswordRequestedWait>(result_ptr);
-            return promise.set_value(td_api::make_object<td_api::resetPasswordResultPending>(result->until_date_));
-          }
-          case telegram_api::account_resetPasswordFailedWait::ID: {
-            auto result = move_tl_object_as<telegram_api::account_resetPasswordFailedWait>(result_ptr);
-            return promise.set_value(td_api::make_object<td_api::resetPasswordResultDeclined>(result->retry_date_));
-          }
-          default:
-            UNREACHABLE();
-            break;
-        }
-      }));
-}
-
-void PasswordManager::cancel_password_reset(Promise<Unit> promise) {
-  send_with_promise(G()->net_query_creator().create(telegram_api::account_declinePasswordReset()),
-                    PromiseCreator::lambda([promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-                      auto r_result = fetch_result<telegram_api::account_declinePasswordReset>(std::move(r_query));
-                      if (r_result.is_error() && r_result.error().message() != "RESET_REQUEST_MISSING") {
-                        return promise.set_error(r_result.move_as_error());
-                      }
-                      return promise.set_value(Unit());
-                    }));
-}
-
-void PasswordManager::update_password_settings(UpdateSettings update_settings, Promise<State> promise) {
-  auto result_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), promise = std::move(promise)](Result<bool> r_update_settings) mutable {
-        if (r_update_settings.is_error()) {
-          return promise.set_error(r_update_settings.move_as_error());
-        }
-        if (!r_update_settings.ok()) {
-          return promise.set_error(Status::Error(400, "account_updatePasswordSettings returned false"));
-        }
-        send_closure(actor_id, &PasswordManager::get_state, std::move(promise));
-      });
-
-  auto password = update_settings.current_password;
-  get_full_state(
-      std::move(password),
-      PromiseCreator::lambda([actor_id = actor_id(this), result_promise = std::move(result_promise),
-                              update_settings = std::move(update_settings)](Result<PasswordFullState> r_state) mutable {
-        if (r_state.is_error()) {
-          return result_promise.set_error(r_state.move_as_error());
-        }
-        send_closure(actor_id, &PasswordManager::do_update_password_settings, std::move(update_settings),
-                     r_state.move_as_ok(), std::move(result_promise));
-      }));
-}
-
-static BufferSlice create_salt(Slice salt_prefix) {
-  static constexpr size_t ADDED_SALT_SIZE = 32;
-  BufferSlice new_salt(salt_prefix.size() + ADDED_SALT_SIZE);
-  new_salt.as_mutable_slice().copy_from(salt_prefix);
-  Random::secure_bytes(new_salt.as_mutable_slice().substr(salt_prefix.size()));
-  return new_salt;
-}
-
-void PasswordManager::do_update_password_settings(UpdateSettings update_settings, PasswordFullState full_state,
-                                                  Promise<bool> promise) {
-  // PasswordState has already been used to get PasswordPrivateState and need to be reget
-  do_get_state(PromiseCreator::lambda([actor_id = actor_id(this), update_settings = std::move(update_settings),
-                                       private_state = std::move(full_state.private_state),
-                                       promise = std::move(promise)](Result<PasswordState> r_state) mutable {
-    if (r_state.is_error()) {
-      return promise.set_error(r_state.move_as_error());
-    }
-    send_closure(actor_id, &PasswordManager::do_update_password_settings_impl, std::move(update_settings),
-                 r_state.move_as_ok(), std::move(private_state), std::move(promise));
-  }));
-}
-
-Result<PasswordManager::PasswordInputSettings> PasswordManager::get_password_input_settings(
-    string new_password, string new_hint, const NewPasswordState &state) {
-  UpdateSettings update_settings;
-  update_settings.update_password = true;
-  update_settings.new_password = std::move(new_password);
-  update_settings.new_hint = std::move(new_hint);
-
-  return get_password_input_settings(update_settings, true, state, nullptr);
-}
-
-Result<PasswordManager::PasswordInputSettings> PasswordManager::get_password_input_settings(
-    const UpdateSettings &update_settings, bool has_password, const NewPasswordState &state,
-    const PasswordPrivateState *private_state) {
-  bool have_secret = private_state != nullptr && private_state->secret;
-  auto update_secure_secret = update_settings.update_secure_secret;
-  int32 flags = 0;
-  BufferSlice new_password_hash;
-  tl_object_ptr<telegram_api::PasswordKdfAlgo> new_algo;
-  string new_hint;
-  if (update_settings.update_password) {
-    flags |= telegram_api::account_passwordInputSettings::NEW_PASSWORD_HASH_MASK;
-    flags |= telegram_api::account_passwordInputSettings::NEW_ALGO_MASK;
-    flags |= telegram_api::account_passwordInputSettings::HINT_MASK;
-    if (!update_settings.new_password.empty()) {
-      auto new_client_salt = create_salt(state.client_salt);
-
-      auto new_hash = calc_password_srp_hash(update_settings.new_password, new_client_salt.as_slice(),
-                                             state.server_salt, state.srp_g, state.srp_p);
-      if (new_hash.is_error()) {
-        return Status::Error(400, "Unable to change password, because it may be unsafe");
-      }
-      new_password_hash = new_hash.move_as_ok();
-      new_algo = make_tl_object<telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow>(
-          std::move(new_client_salt), BufferSlice(state.server_salt), state.srp_g, BufferSlice(state.srp_p));
-      new_hint = update_settings.new_hint;
-      if (have_secret) {
-        update_secure_secret = true;
-      }
-    } else {
-      new_algo = make_tl_object<telegram_api::passwordKdfAlgoUnknown>();
-    }
-  }
-
-  // have no password and not setting one
-  if (!update_settings.update_password && !has_password) {
-    update_secure_secret = false;
-  }
-
-  // setting an empty password
-  if (update_settings.update_password && update_settings.new_password.empty()) {
-    update_secure_secret = false;
-  }
-
-  tl_object_ptr<telegram_api::secureSecretSettings> new_secure_settings;
-  if (update_secure_secret) {
-    auto secret = have_secret ? private_state->secret.value() : secure_storage::Secret::create_new();
-    auto algorithm =
-        make_tl_object<telegram_api::securePasswordKdfAlgoPBKDF2HMACSHA512iter100000>(create_salt(state.secure_salt));
-    auto encrypted_secret = secret.encrypt(
-        update_settings.update_password ? update_settings.new_password : update_settings.current_password,
-        algorithm->salt_.as_slice(), secure_storage::EnryptionAlgorithm::Pbkdf2);
-
-    flags |= telegram_api::account_passwordInputSettings::NEW_SECURE_SETTINGS_MASK;
-    new_secure_settings = make_tl_object<telegram_api::secureSecretSettings>(
-        std::move(algorithm), BufferSlice(encrypted_secret.as_slice()), secret.get_hash());
-  }
-  if (update_settings.update_recovery_email_address) {
-    flags |= telegram_api::account_passwordInputSettings::EMAIL_MASK;
-  }
-  return make_tl_object<telegram_api::account_passwordInputSettings>(
-      flags, std::move(new_algo), std::move(new_password_hash), new_hint, update_settings.recovery_email_address,
-      std::move(new_secure_settings));
-}
-
-void PasswordManager::do_update_password_settings_impl(UpdateSettings update_settings, PasswordState state,
-                                                       PasswordPrivateState private_state, Promise<bool> promise) {
-  TRY_RESULT_PROMISE(promise, new_settings,
-                     get_password_input_settings(update_settings, state.has_password, state.new_state, &private_state));
-  auto current_hash = get_input_check_password(state.has_password ? update_settings.current_password : Slice(), state);
-  auto query = G()->net_query_creator().create(
-      telegram_api::account_updatePasswordSettings(std::move(current_hash), std::move(new_settings)));
-
-  send_with_promise(std::move(query), PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](
-                                                                 Result<NetQueryPtr> r_query) mutable {
-                      auto r_result = fetch_result<telegram_api::account_updatePasswordSettings>(std::move(r_query));
-                      if (r_result.is_error()) {
-                        Slice prefix("EMAIL_UNCONFIRMED");
-                        Slice message = r_result.error().message();
-                        if (r_result.error().code() == 400 && begins_with(message, prefix)) {
-                          if (message.size() >= prefix.size() + 2 && message[prefix.size()] == '_') {
-                            send_closure(actor_id, &PasswordManager::on_get_code_length,
-                                         to_integer<int32>(message.substr(prefix.size() + 1)));
-                          }
-                          return promise.set_value(true);
-                        }
-                        return promise.set_error(r_result.move_as_error());
-                      }
-                      return promise.set_value(r_result.move_as_ok());
-                    }));
-}
-
-void PasswordManager::on_get_code_length(int32 code_length) {
-  if (code_length <= 0 || code_length > 100) {
-    LOG(ERROR) << "Receive invalid code length " << code_length;
-    return;
-  }
-
-  LOG(INFO) << "Set code length to " << code_length;
-  last_code_length_ = code_length;
-}
-
-void PasswordManager::get_state(Promise<State> promise) {
-  do_get_state(PromiseCreator::lambda([promise = std::move(promise)](Result<PasswordState> r_state) mutable {
-    if (r_state.is_error()) {
-      return promise.set_error(r_state.move_as_error());
-    }
-    promise.set_value(r_state.move_as_ok().get_password_state_object());
-  }));
-}
-
-void PasswordManager::do_get_state(Promise<PasswordState> promise) {
-  auto query = G()->net_query_creator().create(telegram_api::account_getPassword());
-  send_with_promise(
-      std::move(query), PromiseCreator::lambda([actor_id = actor_id(this), code_length = last_code_length_,
-                                                promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
-        TRY_STATUS_PROMISE(promise, G()->close_status());
-        TRY_RESULT_PROMISE(promise, password, fetch_result<telegram_api::account_getPassword>(std::move(r_query)));
-        LOG(INFO) << "Receive password info: " << to_string(password);
-        Random::add_seed(password->secure_random_.as_slice());
-
-        PasswordState state;
-        if (password->current_algo_ != nullptr) {
-          state.has_password = true;
-
-          switch (password->current_algo_->get_id()) {
-            case telegram_api::passwordKdfAlgoUnknown::ID:
-              return promise.set_error(Status::Error(400, "Please update client to continue"));
-            case telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow::ID: {
-              auto algo =
-                  move_tl_object_as<telegram_api::passwordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow>(
-                      password->current_algo_);
-              state.current_client_salt = algo->salt1_.as_slice().str();
-              state.current_server_salt = algo->salt2_.as_slice().str();
-              state.current_srp_g = algo->g_;
-              state.current_srp_p = algo->p_.as_slice().str();
-              break;
-            }
-            default:
-              UNREACHABLE();
-          }
-          state.current_srp_B = password->srp_B_.as_slice().str();
-          state.current_srp_id = password->srp_id_;
-          state.password_hint = std::move(password->hint_);
-          state.has_recovery_email_address = password->has_recovery_;
-          state.has_secure_values = password->has_secure_values_;
-
-          auto days = narrow_cast<int32>(G()->get_option_integer("otherwise_relogin_days"));
-          if (days > 0) {
-            dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::SetPassword, DialogId(), days},
-                                     Promise<Unit>());
-          }
-          dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::SetPassword}, Promise<Unit>());
-        } else {
-          state.has_password = false;
-          send_closure(actor_id, &PasswordManager::drop_cached_secret);
-        }
-        state.unconfirmed_recovery_email_code = {std::move(password->email_unconfirmed_pattern_), code_length};
-        state.login_email_pattern = std::move(password->login_email_pattern_);
-
-        if (password->pending_reset_date_ > 0) {
-          state.pending_reset_date = password->pending_reset_date_;
-        }
-
-        auto &new_state = state.new_state;
-        TRY_RESULT_PROMISE_ASSIGN(
-            promise, new_state,
-            get_new_password_state(std::move(password->new_algo_), std::move(password->new_secure_algo_)));
-
-        promise.set_value(std::move(state));
-      }));
-}
-
-void PasswordManager::cache_secret(secure_storage::Secret secret) {
-  LOG(INFO) << "Cache passport secret";
-  secret_ = std::move(secret);
-
-  const int32 max_cache_time = 3600;
-  secret_expire_time_ = Time::now() + max_cache_time;
-  set_timeout_at(secret_expire_time_);
-}
-
-void PasswordManager::drop_cached_secret() {
-  LOG(INFO) << "Drop passport secret";
-  secret_ = optional<secure_storage::Secret>();
-}
-
-void PasswordManager::timeout_expired() {
-  if (Time::now() >= secret_expire_time_) {
-    drop_cached_secret();
-  } else {
-    set_timeout_at(secret_expire_time_);
-  }
-}
-
-void PasswordManager::on_result(NetQueryPtr query) {
-  auto token = get_link_token();
-  container_.extract(token).set_value(std::move(query));
-}
-
-void PasswordManager::send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise) {
-  auto id = container_.create(std::move(promise));
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, id));
-}
-
-void PasswordManager::start_up() {
-  temp_password_state_ = get_temp_password_state_sync();
-}
-
-void PasswordManager::hangup() {
-  container_.for_each(
-      [](auto id, Promise<NetQueryPtr> &promise) { promise.set_error(Global::request_aborted_error()); });
-  stop();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PasswordManager.h b/third-party/td/td/td/telegram/PasswordManager.h
deleted file mode 100644
index 905f3b0708..0000000000
--- a/third-party/td/td/td/telegram/PasswordManager.h
+++ /dev/null
@@ -1,212 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/EmailVerification.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/NewPasswordState.h"
-#include "td/telegram/SecureStorage.h"
-#include "td/telegram/SentEmailCode.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/optional.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-struct TempPasswordState {
-  bool has_temp_password = false;
-  string temp_password;
-  int32 valid_until = 0;  // unix_time
-
-  tl_object_ptr<td_api::temporaryPasswordState> get_temporary_password_state_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    CHECK(has_temp_password);
-    store(temp_password, storer);
-    store(valid_until, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    has_temp_password = true;
-    parse(temp_password, parser);
-    parse(valid_until, parser);
-  }
-};
-
-class PasswordManager final : public NetQueryCallback {
- public:
-  using State = tl_object_ptr<td_api::passwordState>;
-  using TempState = tl_object_ptr<td_api::temporaryPasswordState>;
-  using ResetPasswordResult = tl_object_ptr<td_api::ResetPasswordResult>;
-  using PasswordInputSettings = tl_object_ptr<telegram_api::account_passwordInputSettings>;
-
-  explicit PasswordManager(ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-
-  static tl_object_ptr<telegram_api::InputCheckPasswordSRP> get_input_check_password(Slice password, Slice client_salt,
-                                                                                     Slice server_salt, int32 g,
-                                                                                     Slice p, Slice B, int64 id);
-
-  static Result<PasswordInputSettings> get_password_input_settings(string new_password, string new_hint,
-                                                                   const NewPasswordState &state);
-
-  void get_state(Promise<State> promise);
-  void set_password(string current_password, string new_password, string new_hint, bool set_recovery_email_address,
-                    string recovery_email_address, Promise<State> promise);
-
-  void set_login_email_address(string new_login_email_address, Promise<SentEmailCode> promise);
-  void resend_login_email_address_code(Promise<SentEmailCode> promise);
-  void check_login_email_address_code(EmailVerification &&code, Promise<Unit> promise);
-
-  void set_recovery_email_address(string password, string new_recovery_email_address, Promise<State> promise);
-  void get_recovery_email_address(string password, Promise<tl_object_ptr<td_api::recoveryEmailAddress>> promise);
-  void check_recovery_email_address_code(string code, Promise<State> promise);
-  void resend_recovery_email_address_code(Promise<State> promise);
-  void cancel_recovery_email_address_verification(Promise<State> promise);
-
-  void send_email_address_verification_code(string email, Promise<SentEmailCode> promise);
-  void resend_email_address_verification_code(Promise<SentEmailCode> promise);
-  void check_email_address_verification_code(string code, Promise<Unit> promise);
-
-  void request_password_recovery(Promise<SentEmailCode> promise);
-  void check_password_recovery_code(string code, Promise<Unit> promise);
-  void recover_password(string code, string new_password, string new_hint, Promise<State> promise);
-
-  void reset_password(Promise<ResetPasswordResult> promise);
-  void cancel_password_reset(Promise<Unit> promise);
-
-  void get_secure_secret(string password, Promise<secure_storage::Secret> promise);
-  void get_input_check_password_srp(string password,
-                                    Promise<tl_object_ptr<telegram_api::InputCheckPasswordSRP>> &&promise);
-
-  void get_temp_password_state(Promise<TempState> promise) /*const*/;
-  void create_temp_password(string password, int32 timeout, Promise<TempState> promise);
-  void drop_temp_password();
-  void drop_cached_secret();
-
-  static TempPasswordState get_temp_password_state_sync();
-
- private:
-  ActorShared<> parent_;
-
-  struct PasswordState {
-    bool has_password = false;
-    string password_hint;
-    bool has_recovery_email_address = false;
-    bool has_secure_values = false;
-    SentEmailCode unconfirmed_recovery_email_code;
-    string login_email_pattern;
-    int32 pending_reset_date = 0;
-
-    string current_client_salt;
-    string current_server_salt;
-    int32 current_srp_g = 0;
-    string current_srp_p;
-    string current_srp_B;
-    int64 current_srp_id = 0;
-
-    NewPasswordState new_state;
-
-    State get_password_state_object() const {
-      return td_api::make_object<td_api::passwordState>(
-          has_password, password_hint, has_recovery_email_address, has_secure_values,
-          unconfirmed_recovery_email_code.get_email_address_authentication_code_info_object(), login_email_pattern,
-          pending_reset_date);
-    }
-  };
-
-  struct PasswordPrivateState {
-    string email;
-    optional<secure_storage::Secret> secret;
-  };
-
-  struct PasswordFullState {
-    PasswordState state;
-    PasswordPrivateState private_state;
-  };
-
-  struct UpdateSettings {
-    string current_password;
-
-    bool update_password = false;
-    string new_password;
-    string new_hint;
-
-    bool update_secure_secret = false;
-
-    bool update_recovery_email_address = false;
-    string recovery_email_address;
-  };
-
-  optional<secure_storage::Secret> secret_;
-  double secret_expire_time_ = 0;
-
-  TempPasswordState temp_password_state_;
-  Promise<TempState> create_temp_password_promise_;
-
-  string last_set_login_email_address_;
-  string last_verified_email_address_;
-
-  int32 last_code_length_ = 0;
-
-  static Result<secure_storage::Secret> decrypt_secure_secret(
-      Slice password, tl_object_ptr<telegram_api::SecurePasswordKdfAlgo> algo_ptr, Slice secret, int64 secret_id);
-
-  static BufferSlice calc_password_hash(Slice password, Slice client_salt, Slice server_salt);
-
-  static Result<BufferSlice> calc_password_srp_hash(Slice password, Slice client_salt, Slice server_salt, int32 g,
-                                                    Slice p);
-
-  static tl_object_ptr<telegram_api::InputCheckPasswordSRP> get_input_check_password(Slice password,
-                                                                                     const PasswordState &state);
-
-  static Result<PasswordInputSettings> get_password_input_settings(const UpdateSettings &update_settings,
-                                                                   bool has_password, const NewPasswordState &state,
-                                                                   const PasswordPrivateState *private_state);
-
-  void do_recover_password(string code, PasswordInputSettings &&new_settings, Promise<State> &&promise);
-
-  void update_password_settings(UpdateSettings update_settings, Promise<State> promise);
-  void do_update_password_settings(UpdateSettings update_settings, PasswordFullState full_state, Promise<bool> promise);
-  void do_update_password_settings_impl(UpdateSettings update_settings, PasswordState state,
-                                        PasswordPrivateState private_state, Promise<bool> promise);
-  void on_get_code_length(int32 code_length);
-  void do_get_state(Promise<PasswordState> promise);
-  void get_full_state(string password, Promise<PasswordFullState> promise);
-  void do_get_secure_secret(bool allow_recursive, string password, Promise<secure_storage::Secret> promise);
-  void do_get_full_state(string password, PasswordState state, Promise<PasswordFullState> promise);
-  void cache_secret(secure_storage::Secret secret);
-
-  void do_create_temp_password(string password, int32 timeout, PasswordState &&password_state,
-                               Promise<TempPasswordState> promise);
-  void on_finish_create_temp_password(Result<TempPasswordState> result, bool dummy);
-
-  void on_result(NetQueryPtr query) final;
-
-  void start_up() final;
-  void timeout_expired() final;
-  void hangup() final;
-
-  Container<Promise<NetQueryPtr>> container_;
-  void send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Payments.cpp b/third-party/td/td/td/telegram/Payments.cpp
deleted file mode 100644
index b8177971d8..0000000000
--- a/third-party/td/td/td/telegram/Payments.cpp
+++ /dev/null
@@ -1,1248 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Payments.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/BusinessConnectionManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogInviteLink.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/GiveawayParameters.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/InputInvoice.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Premium.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-namespace {
-
-struct InputInvoiceInfo {
-  DialogId dialog_id_;
-  telegram_api::object_ptr<telegram_api::InputInvoice> input_invoice_;
-  int64 star_count_ = 0;
-};
-
-Result<InputInvoiceInfo> get_input_invoice_info(Td *td, td_api::object_ptr<td_api::InputInvoice> &&input_invoice) {
-  if (input_invoice == nullptr) {
-    return Status::Error(400, "Input invoice must be non-empty");
-  }
-
-  InputInvoiceInfo result;
-  switch (input_invoice->get_id()) {
-    case td_api::inputInvoiceMessage::ID: {
-      auto invoice = td_api::move_object_as<td_api::inputInvoiceMessage>(input_invoice);
-      DialogId dialog_id(invoice->chat_id_);
-      MessageId message_id(invoice->message_id_);
-      TRY_RESULT(invoice_message_info, td->messages_manager_->get_invoice_message_info({dialog_id, message_id}));
-
-      auto input_peer = td->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-      if (input_peer == nullptr) {
-        return Status::Error(400, "Can't access the chat");
-      }
-
-      result.dialog_id_ = dialog_id;
-      result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoiceMessage>(
-          std::move(input_peer), invoice_message_info.server_message_id_.get());
-      result.star_count_ = invoice_message_info.star_count_;
-      break;
-    }
-    case td_api::inputInvoiceName::ID: {
-      auto invoice = td_api::move_object_as<td_api::inputInvoiceName>(input_invoice);
-      result.input_invoice_ = make_tl_object<telegram_api::inputInvoiceSlug>(invoice->name_);
-      break;
-    }
-    case td_api::inputInvoiceTelegram::ID: {
-      auto invoice = td_api::move_object_as<td_api::inputInvoiceTelegram>(input_invoice);
-      if (invoice->purpose_ == nullptr) {
-        return Status::Error(400, "Purpose must be non-empty");
-      }
-      switch (invoice->purpose_->get_id()) {
-        case td_api::telegramPaymentPurposePremiumGift::ID: {
-          auto p = static_cast<td_api::telegramPaymentPurposePremiumGift *>(invoice->purpose_.get());
-          TRY_RESULT(input_user, td->user_manager_->get_input_user(UserId(p->user_id_)));
-          TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-          TRY_RESULT(text, get_premium_gift_text(td, std::move(p->text_)));
-
-          if (p->currency_ == "XTR") {
-            int32 flags = 0;
-            if (text != nullptr) {
-              flags |= telegram_api::inputInvoicePremiumGiftStars::MESSAGE_MASK;
-            }
-            result.star_count_ = max(p->amount_, static_cast<int64>(0));
-            result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoicePremiumGiftStars>(
-                flags, std::move(input_user), p->month_count_, std::move(text));
-            break;
-          }
-
-          int32 flags = 0;
-          if (text != nullptr) {
-            flags |= telegram_api::inputStorePaymentPremiumGiftCode::MESSAGE_MASK;
-          }
-          auto option = telegram_api::make_object<telegram_api::premiumGiftCodeOption>(0, 1, p->month_count_, string(),
-                                                                                       0, p->currency_, p->amount_);
-          vector<telegram_api::object_ptr<telegram_api::InputUser>> input_users;
-          input_users.push_back(std::move(input_user));
-          auto purpose = telegram_api::make_object<telegram_api::inputStorePaymentPremiumGiftCode>(
-              flags, std::move(input_users), nullptr, p->currency_, p->amount_, std::move(text));
-
-          result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoicePremiumGiftCode>(
-              std::move(purpose), std::move(option));
-          break;
-        }
-        case td_api::telegramPaymentPurposePremiumGiftCodes::ID: {
-          auto p = static_cast<td_api::telegramPaymentPurposePremiumGiftCodes *>(invoice->purpose_.get());
-          vector<telegram_api::object_ptr<telegram_api::InputUser>> input_users;
-          for (auto user_id : p->user_ids_) {
-            TRY_RESULT(input_user, td->user_manager_->get_input_user(UserId(user_id)));
-            input_users.push_back(std::move(input_user));
-          }
-          TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-          DialogId boosted_dialog_id(p->boosted_chat_id_);
-          TRY_RESULT(boost_input_peer, get_boost_input_peer(td, boosted_dialog_id));
-          TRY_RESULT(text, get_premium_gift_text(td, std::move(p->text_)));
-
-          int32 flags = telegram_api::inputStorePaymentPremiumGiftCode::BOOST_PEER_MASK;
-          if (text != nullptr) {
-            flags |= telegram_api::inputStorePaymentPremiumGiftCode::MESSAGE_MASK;
-          }
-          auto option = telegram_api::make_object<telegram_api::premiumGiftCodeOption>(
-              0, static_cast<int32>(input_users.size()), p->month_count_, string(), 0, p->currency_, p->amount_);
-          auto purpose = telegram_api::make_object<telegram_api::inputStorePaymentPremiumGiftCode>(
-              flags, std::move(input_users), std::move(boost_input_peer), p->currency_, p->amount_, std::move(text));
-
-          result.dialog_id_ = boosted_dialog_id;
-          result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoicePremiumGiftCode>(
-              std::move(purpose), std::move(option));
-          break;
-        }
-        case td_api::telegramPaymentPurposePremiumGiveaway::ID: {
-          auto p = static_cast<td_api::telegramPaymentPurposePremiumGiveaway *>(invoice->purpose_.get());
-          TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-          TRY_RESULT(parameters, GiveawayParameters::get_giveaway_parameters(td, p->parameters_.get()));
-          auto option = telegram_api::make_object<telegram_api::premiumGiftCodeOption>(
-              0, p->winner_count_, p->month_count_, string(), 0, p->currency_, p->amount_);
-          result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoicePremiumGiftCode>(
-              parameters.get_input_store_payment_premium_giveaway(td, p->currency_, p->amount_), std::move(option));
-          break;
-        }
-        case td_api::telegramPaymentPurposeStars::ID: {
-          auto p = static_cast<td_api::telegramPaymentPurposeStars *>(invoice->purpose_.get());
-          TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-          dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::StarsSubscriptionLowBalance},
-                                   Promise<Unit>());
-          auto purpose = telegram_api::make_object<telegram_api::inputStorePaymentStarsTopup>(p->star_count_,
-                                                                                              p->currency_, p->amount_);
-          result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoiceStars>(std::move(purpose));
-          break;
-        }
-        case td_api::telegramPaymentPurposeGiftedStars::ID: {
-          auto p = static_cast<td_api::telegramPaymentPurposeGiftedStars *>(invoice->purpose_.get());
-          UserId user_id(p->user_id_);
-          TRY_RESULT(input_user, td->user_manager_->get_input_user(user_id));
-          TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-          auto purpose = telegram_api::make_object<telegram_api::inputStorePaymentStarsGift>(
-              std::move(input_user), p->star_count_, p->currency_, p->amount_);
-          result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoiceStars>(std::move(purpose));
-          break;
-        }
-        case td_api::telegramPaymentPurposeStarGiveaway::ID: {
-          auto p = static_cast<td_api::telegramPaymentPurposeStarGiveaway *>(invoice->purpose_.get());
-          TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-          TRY_RESULT(parameters, GiveawayParameters::get_giveaway_parameters(td, p->parameters_.get()));
-          auto purpose = parameters.get_input_store_payment_stars_giveaway(td, p->currency_, p->amount_,
-                                                                           p->winner_count_, p->star_count_);
-          result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoiceStars>(std::move(purpose));
-          break;
-        }
-        case td_api::telegramPaymentPurposeJoinChat::ID: {
-          auto p = static_cast<td_api::telegramPaymentPurposeJoinChat *>(invoice->purpose_.get());
-          if (!DialogInviteLink::is_valid_invite_link(p->invite_link_)) {
-            return Status::Error(400, "Invalid invite link");
-          }
-          auto hash = LinkManager::get_dialog_invite_link_hash(p->invite_link_);
-          if (!clean_input_string(hash)) {
-            return Status::Error(400, "Invalid invite link");
-          }
-          result.input_invoice_ = telegram_api::make_object<telegram_api::inputInvoiceChatInviteSubscription>(hash);
-          break;
-        }
-        default:
-          UNREACHABLE();
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return std::move(result);
-}
-
-}  // namespace
-
-class SetBotShippingAnswerQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetBotShippingAnswerQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 shipping_query_id, const string &error_message,
-            vector<tl_object_ptr<telegram_api::shippingOption>> &&shipping_options) {
-    int32 flags = 0;
-    if (!error_message.empty()) {
-      flags |= telegram_api::messages_setBotShippingResults::ERROR_MASK;
-    }
-    if (!shipping_options.empty()) {
-      flags |= telegram_api::messages_setBotShippingResults::SHIPPING_OPTIONS_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_setBotShippingResults(
-        flags, shipping_query_id, error_message, std::move(shipping_options))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setBotShippingResults>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      LOG(INFO) << "Sending answer to a shipping query has failed";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetBotPreCheckoutAnswerQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetBotPreCheckoutAnswerQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 pre_checkout_query_id, const string &error_message) {
-    int32 flags = 0;
-    if (!error_message.empty()) {
-      flags |= telegram_api::messages_setBotPrecheckoutResults::ERROR_MASK;
-    } else {
-      flags |= telegram_api::messages_setBotPrecheckoutResults::SUCCESS_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_setBotPrecheckoutResults(
-        flags, false /*ignored*/, pre_checkout_query_id, error_message)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setBotPrecheckoutResults>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      LOG(INFO) << "Sending answer to a pre-checkout query has failed";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-static tl_object_ptr<td_api::labeledPricePart> convert_labeled_price(
-    tl_object_ptr<telegram_api::labeledPrice> labeled_price) {
-  CHECK(labeled_price != nullptr);
-  if (!check_currency_amount(labeled_price->amount_)) {
-    LOG(ERROR) << "Receive invalid labeled price amount " << labeled_price->amount_;
-    labeled_price->amount_ = (labeled_price->amount_ < 0 ? -1 : 1) * (static_cast<int64>(1) << 40);
-  }
-  return make_tl_object<td_api::labeledPricePart>(std::move(labeled_price->label_), labeled_price->amount_);
-}
-
-static tl_object_ptr<td_api::invoice> convert_invoice(tl_object_ptr<telegram_api::invoice> invoice) {
-  CHECK(invoice != nullptr);
-
-  auto labeled_prices = transform(std::move(invoice->prices_), convert_labeled_price);
-  bool need_phone_number = invoice->phone_requested_;
-  bool need_email_address = invoice->email_requested_;
-  bool need_shipping_address = invoice->shipping_address_requested_;
-  bool send_phone_number_to_provider = invoice->phone_to_provider_;
-  bool send_email_address_to_provider = invoice->email_to_provider_;
-  bool is_flexible = invoice->flexible_;
-  if (send_phone_number_to_provider) {
-    need_phone_number = true;
-  }
-  if (send_email_address_to_provider) {
-    need_email_address = true;
-  }
-  if (is_flexible) {
-    need_shipping_address = true;
-  }
-
-  if (invoice->max_tip_amount_ < 0 || !check_currency_amount(invoice->max_tip_amount_)) {
-    LOG(ERROR) << "Receive invalid maximum tip amount " << invoice->max_tip_amount_;
-    invoice->max_tip_amount_ = 0;
-  }
-  td::remove_if(invoice->suggested_tip_amounts_,
-                [](int64 amount) { return amount < 0 || !check_currency_amount(amount); });
-  if (invoice->suggested_tip_amounts_.size() > 4) {
-    invoice->suggested_tip_amounts_.resize(4);
-  }
-
-  string recurring_terms_url;
-  string terms_url;
-  if (invoice->recurring_) {
-    recurring_terms_url = std::move(invoice->terms_url_);
-  } else {
-    terms_url = std::move(invoice->terms_url_);
-  }
-  return td_api::make_object<td_api::invoice>(
-      std::move(invoice->currency_), std::move(labeled_prices), max(invoice->subscription_period_, 0),
-      invoice->max_tip_amount_, std::move(invoice->suggested_tip_amounts_), recurring_terms_url, terms_url,
-      invoice->test_, invoice->name_requested_, need_phone_number, need_email_address, need_shipping_address,
-      send_phone_number_to_provider, send_email_address_to_provider, is_flexible);
-}
-
-static tl_object_ptr<td_api::PaymentProvider> convert_payment_provider(
-    const string &native_provider_name, tl_object_ptr<telegram_api::dataJSON> native_parameters, bool is_test) {
-  if (native_parameters == nullptr) {
-    return nullptr;
-  }
-
-  if (native_provider_name == "smartglocal") {
-    string data = native_parameters->data_;
-    auto r_value = json_decode(data);
-    if (r_value.is_error()) {
-      LOG(ERROR) << "Can't parse JSON object \"" << native_parameters->data_ << "\": " << r_value.error();
-      return nullptr;
-    }
-
-    auto value = r_value.move_as_ok();
-    if (value.type() != JsonValue::Type::Object) {
-      LOG(ERROR) << "Wrong JSON data \"" << native_parameters->data_ << '"';
-      return nullptr;
-    }
-
-    const auto &object = value.get_object();
-    auto r_public_token = object.get_required_string_field("public_token");
-    if (r_public_token.is_error()) {
-      LOG(ERROR) << "Unsupported JSON data \"" << native_parameters->data_ << '"';
-      return nullptr;
-    }
-    string tokenize_url = is_test ? "https://tgb-playground.smart-glocal.com/cds/v1/tokenize/card"
-                                  : "https://tgb.smart-glocal.com/cds/v1/tokenize/card";
-    auto r_tokenize_url = object.get_optional_string_field("tokenize_url");
-    if (r_tokenize_url.is_ok() && begins_with(r_tokenize_url.ok(), "https://") &&
-        ends_with(r_tokenize_url.ok(), ".smart-glocal.com/cds/v1/tokenize/card")) {
-      tokenize_url = r_tokenize_url.move_as_ok();
-    }
-    if (object.field_count() > 2) {
-      LOG(ERROR) << "Unsupported JSON data \"" << native_parameters->data_ << '"';
-    }
-    return make_tl_object<td_api::paymentProviderSmartGlocal>(r_public_token.move_as_ok(), tokenize_url);
-  }
-  if (native_provider_name == "stripe") {
-    string data = native_parameters->data_;
-    auto r_value = json_decode(data);
-    if (r_value.is_error()) {
-      LOG(ERROR) << "Can't parse JSON object \"" << native_parameters->data_ << "\": " << r_value.error();
-      return nullptr;
-    }
-
-    auto value = r_value.move_as_ok();
-    if (value.type() != JsonValue::Type::Object) {
-      LOG(ERROR) << "Wrong JSON data \"" << native_parameters->data_ << '"';
-      return nullptr;
-    }
-
-    const auto &object = value.get_object();
-    auto r_need_country = object.get_required_bool_field("need_country");
-    auto r_need_postal_code = object.get_required_bool_field("need_zip");
-    auto r_need_cardholder_name = object.get_required_bool_field("need_cardholder_name");
-    auto r_publishable_key = object.get_required_string_field("publishable_key");
-    // TODO support "gpay_parameters":{"gateway":"stripe","stripe:publishableKey":"...","stripe:version":"..."}
-
-    if (r_need_country.is_error() || r_need_postal_code.is_error() || r_need_cardholder_name.is_error() ||
-        r_publishable_key.is_error()) {
-      LOG(ERROR) << "Unsupported JSON data \"" << native_parameters->data_ << '"';
-      return nullptr;
-    }
-    if (object.field_count() != 5) {
-      LOG(ERROR) << "Unsupported JSON data \"" << native_parameters->data_ << '"';
-    }
-
-    return make_tl_object<td_api::paymentProviderStripe>(r_publishable_key.move_as_ok(), r_need_country.move_as_ok(),
-                                                         r_need_postal_code.move_as_ok(),
-                                                         r_need_cardholder_name.move_as_ok());
-  }
-
-  return nullptr;
-}
-
-static tl_object_ptr<td_api::address> convert_address(tl_object_ptr<telegram_api::postAddress> address) {
-  if (address == nullptr) {
-    return nullptr;
-  }
-  return make_tl_object<td_api::address>(std::move(address->country_iso2_), std::move(address->state_),
-                                         std::move(address->city_), std::move(address->street_line1_),
-                                         std::move(address->street_line2_), std::move(address->post_code_));
-}
-
-static tl_object_ptr<telegram_api::postAddress> convert_address(tl_object_ptr<td_api::address> address) {
-  if (address == nullptr) {
-    return nullptr;
-  }
-  return make_tl_object<telegram_api::postAddress>(std::move(address->street_line1_), std::move(address->street_line2_),
-                                                   std::move(address->city_), std::move(address->state_),
-                                                   std::move(address->country_code_), std::move(address->postal_code_));
-}
-
-static tl_object_ptr<td_api::orderInfo> convert_order_info(
-    tl_object_ptr<telegram_api::paymentRequestedInfo> order_info) {
-  if (order_info == nullptr) {
-    return nullptr;
-  }
-  return make_tl_object<td_api::orderInfo>(std::move(order_info->name_), std::move(order_info->phone_),
-                                           std::move(order_info->email_),
-                                           convert_address(std::move(order_info->shipping_address_)));
-}
-
-static tl_object_ptr<td_api::shippingOption> convert_shipping_option(
-    tl_object_ptr<telegram_api::shippingOption> shipping_option) {
-  if (shipping_option == nullptr) {
-    return nullptr;
-  }
-
-  return make_tl_object<td_api::shippingOption>(std::move(shipping_option->id_), std::move(shipping_option->title_),
-                                                transform(std::move(shipping_option->prices_), convert_labeled_price));
-}
-
-static tl_object_ptr<telegram_api::paymentRequestedInfo> convert_order_info(
-    tl_object_ptr<td_api::orderInfo> order_info) {
-  if (order_info == nullptr) {
-    return nullptr;
-  }
-  int32 flags = 0;
-  if (!order_info->name_.empty()) {
-    flags |= telegram_api::paymentRequestedInfo::NAME_MASK;
-  }
-  if (!order_info->phone_number_.empty()) {
-    flags |= telegram_api::paymentRequestedInfo::PHONE_MASK;
-  }
-  if (!order_info->email_address_.empty()) {
-    flags |= telegram_api::paymentRequestedInfo::EMAIL_MASK;
-  }
-  if (order_info->shipping_address_ != nullptr) {
-    flags |= telegram_api::paymentRequestedInfo::SHIPPING_ADDRESS_MASK;
-  }
-  return make_tl_object<telegram_api::paymentRequestedInfo>(
-      flags, std::move(order_info->name_), std::move(order_info->phone_number_), std::move(order_info->email_address_),
-      convert_address(std::move(order_info->shipping_address_)));
-}
-
-static vector<tl_object_ptr<td_api::savedCredentials>> convert_saved_credentials(
-    vector<tl_object_ptr<telegram_api::paymentSavedCredentialsCard>> saved_credentials) {
-  return transform(
-      std::move(saved_credentials), [](tl_object_ptr<telegram_api::paymentSavedCredentialsCard> &&credentials) {
-        return make_tl_object<td_api::savedCredentials>(std::move(credentials->id_), std::move(credentials->title_));
-      });
-}
-
-class GetPaymentFormQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<td_api::paymentForm>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetPaymentFormQuery(Promise<tl_object_ptr<td_api::paymentForm>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(InputInvoiceInfo &&input_invoice_info, tl_object_ptr<telegram_api::dataJSON> &&theme_parameters) {
-    dialog_id_ = input_invoice_info.dialog_id_;
-
-    int32 flags = 0;
-    if (theme_parameters != nullptr) {
-      flags |= telegram_api::payments_getPaymentForm::THEME_PARAMS_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::payments_getPaymentForm(
-        flags, std::move(input_invoice_info.input_invoice_), std::move(theme_parameters))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPaymentForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_form_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPaymentFormQuery: " << to_string(payment_form_ptr);
-    switch (payment_form_ptr->get_id()) {
-      case telegram_api::payments_paymentForm::ID: {
-        auto payment_form = telegram_api::move_object_as<telegram_api::payments_paymentForm>(payment_form_ptr);
-
-        td_->user_manager_->on_get_users(std::move(payment_form->users_), "GetPaymentFormQuery 1");
-
-        UserId payments_provider_user_id(payment_form->provider_id_);
-        if (!payments_provider_user_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid payments provider " << payments_provider_user_id;
-          return on_error(Status::Error(500, "Receive invalid payments provider identifier"));
-        }
-        UserId seller_bot_user_id(payment_form->bot_id_);
-        if (!seller_bot_user_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid seller " << seller_bot_user_id;
-          return on_error(Status::Error(500, "Receive invalid seller identifier"));
-        }
-        bool can_save_credentials = payment_form->can_save_credentials_;
-        bool need_password = payment_form->password_missing_;
-        auto photo = get_web_document_photo(td_->file_manager_.get(), std::move(payment_form->photo_), dialog_id_);
-        auto payment_provider = convert_payment_provider(
-            payment_form->native_provider_, std::move(payment_form->native_params_), payment_form->invoice_->test_);
-        if (payment_provider == nullptr) {
-          payment_provider = td_api::make_object<td_api::paymentProviderOther>(std::move(payment_form->url_));
-        }
-        auto additional_payment_options =
-            transform(payment_form->additional_methods_,
-                      [](const telegram_api::object_ptr<telegram_api::paymentFormMethod> &method) {
-                        return td_api::make_object<td_api::paymentOption>(method->title_, method->url_);
-                      });
-        auto type = td_api::make_object<td_api::paymentFormTypeRegular>(
-            convert_invoice(std::move(payment_form->invoice_)),
-            td_->user_manager_->get_user_id_object(payments_provider_user_id, "paymentForm provider"),
-            std::move(payment_provider), std::move(additional_payment_options),
-            convert_order_info(std::move(payment_form->saved_info_)),
-            convert_saved_credentials(std::move(payment_form->saved_credentials_)), can_save_credentials,
-            need_password);
-        promise_.set_value(td_api::make_object<td_api::paymentForm>(
-            payment_form->form_id_, std::move(type),
-            td_->user_manager_->get_user_id_object(seller_bot_user_id, "paymentForm seller"),
-            get_product_info_object(td_, payment_form->title_, payment_form->description_, photo)));
-        break;
-      }
-      case telegram_api::payments_paymentFormStars::ID: {
-        auto payment_form = telegram_api::move_object_as<telegram_api::payments_paymentFormStars>(payment_form_ptr);
-
-        td_->user_manager_->on_get_users(std::move(payment_form->users_), "GetPaymentFormQuery 2");
-
-        UserId seller_bot_user_id(payment_form->bot_id_);
-        if (!seller_bot_user_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid seller " << seller_bot_user_id;
-          return on_error(Status::Error(500, "Receive invalid seller identifier"));
-        }
-        if (payment_form->invoice_->prices_.size() != 1u) {
-          LOG(ERROR) << "Receive invalid prices " << to_string(payment_form->invoice_->prices_);
-          return on_error(Status::Error(500, "Receive invalid price"));
-        }
-        auto photo = get_web_document_photo(td_->file_manager_.get(), std::move(payment_form->photo_), dialog_id_);
-        auto star_count = StarManager::get_star_count(payment_form->invoice_->prices_[0]->amount_);
-        td_api::object_ptr<td_api::PaymentFormType> type;
-        if (payment_form->invoice_->subscription_period_ > 0) {
-          type = td_api::make_object<td_api::paymentFormTypeStarSubscription>(
-              td_api::make_object<td_api::starSubscriptionPricing>(payment_form->invoice_->subscription_period_,
-                                                                   star_count));
-        } else {
-          type = td_api::make_object<td_api::paymentFormTypeStars>(star_count);
-        }
-        promise_.set_value(td_api::make_object<td_api::paymentForm>(
-            payment_form->form_id_, std::move(type),
-            td_->user_manager_->get_user_id_object(seller_bot_user_id, "paymentForm seller"),
-            get_product_info_object(td_, payment_form->title_, payment_form->description_, photo)));
-        break;
-      }
-      case telegram_api::payments_paymentFormStarGift::ID:
-        LOG(ERROR) << "Receive " << to_string(payment_form_ptr);
-        promise_.set_error(Status::Error(500, "Unsupported"));
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetPaymentFormQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ValidateRequestedInfoQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<td_api::validatedOrderInfo>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ValidateRequestedInfoQuery(Promise<tl_object_ptr<td_api::validatedOrderInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(InputInvoiceInfo &&input_invoice_info, tl_object_ptr<telegram_api::paymentRequestedInfo> requested_info,
-            bool allow_save) {
-    dialog_id_ = input_invoice_info.dialog_id_;
-
-    int32 flags = 0;
-    if (allow_save) {
-      flags |= telegram_api::payments_validateRequestedInfo::SAVE_MASK;
-    }
-    if (requested_info == nullptr) {
-      requested_info = make_tl_object<telegram_api::paymentRequestedInfo>();
-      requested_info->flags_ = 0;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::payments_validateRequestedInfo(
-        flags, false /*ignored*/, std::move(input_invoice_info.input_invoice_), std::move(requested_info))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_validateRequestedInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto validated_order_info = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ValidateRequestedInfoQuery: " << to_string(validated_order_info);
-
-    promise_.set_value(make_tl_object<td_api::validatedOrderInfo>(
-        std::move(validated_order_info->id_),
-        transform(std::move(validated_order_info->shipping_options_), convert_shipping_option)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ValidateRequestedInfoQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendPaymentFormQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<td_api::paymentResult>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SendPaymentFormQuery(Promise<tl_object_ptr<td_api::paymentResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(InputInvoiceInfo &&input_invoice_info, int64 payment_form_id, const string &order_info_id,
-            const string &shipping_option_id, tl_object_ptr<telegram_api::InputPaymentCredentials> input_credentials,
-            int64 tip_amount) {
-    CHECK(input_credentials != nullptr);
-
-    dialog_id_ = input_invoice_info.dialog_id_;
-
-    int32 flags = 0;
-    if (!order_info_id.empty()) {
-      flags |= telegram_api::payments_sendPaymentForm::REQUESTED_INFO_ID_MASK;
-    }
-    if (!shipping_option_id.empty()) {
-      flags |= telegram_api::payments_sendPaymentForm::SHIPPING_OPTION_ID_MASK;
-    }
-    if (tip_amount != 0) {
-      flags |= telegram_api::payments_sendPaymentForm::TIP_AMOUNT_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::payments_sendPaymentForm(
-        flags, payment_form_id, std::move(input_invoice_info.input_invoice_), order_info_id, shipping_option_id,
-        std::move(input_credentials), tip_amount)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_sendPaymentForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendPaymentFormQuery: " << to_string(payment_result);
-
-    switch (payment_result->get_id()) {
-      case telegram_api::payments_paymentResult::ID: {
-        auto result = move_tl_object_as<telegram_api::payments_paymentResult>(payment_result);
-        td_->updates_manager_->on_get_updates(
-            std::move(result->updates_), PromiseCreator::lambda([promise = std::move(promise_)](Unit) mutable {
-              promise.set_value(make_tl_object<td_api::paymentResult>(true, string()));
-            }));
-        return;
-      }
-      case telegram_api::payments_paymentVerificationNeeded::ID: {
-        auto result = move_tl_object_as<telegram_api::payments_paymentVerificationNeeded>(payment_result);
-        promise_.set_value(make_tl_object<td_api::paymentResult>(false, std::move(result->url_)));
-        return;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendPaymentFormQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendStarPaymentFormQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::paymentResult>> promise_;
-  DialogId dialog_id_;
-  int64 star_count_;
-
- public:
-  explicit SendStarPaymentFormQuery(Promise<td_api::object_ptr<td_api::paymentResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(InputInvoiceInfo &&input_invoice_info, int64 payment_form_id) {
-    dialog_id_ = input_invoice_info.dialog_id_;
-    star_count_ = input_invoice_info.star_count_;
-    td_->star_manager_->add_pending_owned_star_count(-star_count_, false);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_sendStarsForm(payment_form_id, std::move(input_invoice_info.input_invoice_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_sendStarsForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendStarPaymentFormQuery: " << to_string(payment_result);
-
-    td_->star_manager_->add_pending_owned_star_count(star_count_, true);
-    switch (payment_result->get_id()) {
-      case telegram_api::payments_paymentResult::ID: {
-        auto result = telegram_api::move_object_as<telegram_api::payments_paymentResult>(payment_result);
-        td_->updates_manager_->on_get_updates(
-            std::move(result->updates_), PromiseCreator::lambda([promise = std::move(promise_)](Unit) mutable {
-              promise.set_value(td_api::make_object<td_api::paymentResult>(true, string()));
-            }));
-        return;
-      }
-      case telegram_api::payments_paymentVerificationNeeded::ID: {
-        auto result = telegram_api::move_object_as<telegram_api::payments_paymentVerificationNeeded>(payment_result);
-        promise_.set_value(td_api::make_object<td_api::paymentResult>(false, std::move(result->url_)));
-        return;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendStarPaymentFormQuery");
-    td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPaymentReceiptQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<td_api::paymentReceipt>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetPaymentReceiptQuery(Promise<tl_object_ptr<td_api::paymentReceipt>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, ServerMessageId server_message_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getPaymentReceipt(std::move(input_peer), server_message_id.get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPaymentReceipt>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPaymentReceiptQuery: " << to_string(ptr);
-    switch (ptr->get_id()) {
-      case telegram_api::payments_paymentReceiptStars::ID: {
-        auto payment_receipt = telegram_api::move_object_as<telegram_api::payments_paymentReceiptStars>(ptr);
-
-        td_->user_manager_->on_get_users(std::move(payment_receipt->users_), "GetPaymentReceiptQuery 1");
-        UserId seller_bot_user_id(payment_receipt->bot_id_);
-        if (!seller_bot_user_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid seller " << seller_bot_user_id;
-          return on_error(Status::Error(500, "Receive invalid seller identifier"));
-        }
-        auto photo = get_web_document_photo(td_->file_manager_.get(), std::move(payment_receipt->photo_), dialog_id_);
-        if (payment_receipt->invoice_->prices_.size() != 1u) {
-          LOG(ERROR) << "Receive invalid prices " << to_string(payment_receipt->invoice_->prices_);
-          return on_error(Status::Error(500, "Receive invalid price"));
-        }
-        promise_.set_value(td_api::make_object<td_api::paymentReceipt>(
-            get_product_info_object(td_, payment_receipt->title_, payment_receipt->description_, photo),
-            payment_receipt->date_, td_->user_manager_->get_user_id_object(seller_bot_user_id, "paymentReceipt seller"),
-            td_api::make_object<td_api::paymentReceiptTypeStars>(
-                StarManager::get_star_count(payment_receipt->invoice_->prices_[0]->amount_),
-                payment_receipt->transaction_id_)));
-        break;
-      }
-      case telegram_api::payments_paymentReceipt::ID: {
-        auto payment_receipt = telegram_api::move_object_as<telegram_api::payments_paymentReceipt>(ptr);
-
-        td_->user_manager_->on_get_users(std::move(payment_receipt->users_), "GetPaymentReceiptQuery 2");
-
-        UserId payments_provider_user_id(payment_receipt->provider_id_);
-        if (!payments_provider_user_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid payments provider " << payments_provider_user_id;
-          return on_error(Status::Error(500, "Receive invalid payments provider identifier"));
-        }
-        UserId seller_bot_user_id(payment_receipt->bot_id_);
-        if (!seller_bot_user_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid seller " << seller_bot_user_id;
-          return on_error(Status::Error(500, "Receive invalid seller identifier"));
-        }
-        auto photo = get_web_document_photo(td_->file_manager_.get(), std::move(payment_receipt->photo_), dialog_id_);
-        if (payment_receipt->tip_amount_ < 0 || !check_currency_amount(payment_receipt->tip_amount_)) {
-          LOG(ERROR) << "Receive invalid tip amount " << payment_receipt->tip_amount_;
-          payment_receipt->tip_amount_ = 0;
-        }
-
-        promise_.set_value(td_api::make_object<td_api::paymentReceipt>(
-            get_product_info_object(td_, payment_receipt->title_, payment_receipt->description_, photo),
-            payment_receipt->date_, td_->user_manager_->get_user_id_object(seller_bot_user_id, "paymentReceipt seller"),
-            td_api::make_object<td_api::paymentReceiptTypeRegular>(
-                td_->user_manager_->get_user_id_object(payments_provider_user_id, "paymentReceipt provider"),
-                convert_invoice(std::move(payment_receipt->invoice_)),
-                convert_order_info(std::move(payment_receipt->info_)),
-                convert_shipping_option(std::move(payment_receipt->shipping_)),
-                std::move(payment_receipt->credentials_title_), payment_receipt->tip_amount_)));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetPaymentReceiptQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSavedInfoQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<td_api::orderInfo>> promise_;
-
- public:
-  explicit GetSavedInfoQuery(Promise<tl_object_ptr<td_api::orderInfo>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::payments_getSavedInfo()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getSavedInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto saved_info = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetSavedInfoQuery: " << to_string(saved_info);
-    promise_.set_value(convert_order_info(std::move(saved_info->saved_info_)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ClearSavedInfoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ClearSavedInfoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool clear_credentials, bool clear_order_info) {
-    CHECK(clear_credentials || clear_order_info);
-    int32 flags = 0;
-    if (clear_credentials) {
-      flags |= telegram_api::payments_clearSavedInfo::CREDENTIALS_MASK;
-    }
-    if (clear_order_info) {
-      flags |= telegram_api::payments_clearSavedInfo::INFO_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_clearSavedInfo(flags, false /*ignored*/, false /*ignored*/)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_clearSavedInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ExportInvoiceQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit ExportInvoiceQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id,
-            telegram_api::object_ptr<telegram_api::inputMediaInvoice> &&input_media_invoice) {
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_exportInvoice(std::move(input_media_invoice)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_exportInvoice>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto link = result_ptr.move_as_ok();
-    promise_.set_value(std::move(link->url_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBankCardInfoQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::bankCardInfo>> promise_;
-
- public:
-  explicit GetBankCardInfoQuery(Promise<td_api::object_ptr<td_api::bankCardInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &bank_card_number) {
-    send_query(G()->net_query_creator().create(telegram_api::payments_getBankCardData(bank_card_number), {},
-                                               G()->get_webfile_dc_id()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getBankCardData>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto response = result_ptr.move_as_ok();
-    auto actions = transform(response->open_urls_, [](auto &open_url) {
-      return td_api::make_object<td_api::bankCardActionOpenUrl>(open_url->name_, open_url->url_);
-    });
-    promise_.set_value(td_api::make_object<td_api::bankCardInfo>(response->title_, std::move(actions)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetCollectibleInfoQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::collectibleItemInfo>> promise_;
-
- public:
-  explicit GetCollectibleInfoQuery(Promise<td_api::object_ptr<td_api::collectibleItemInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputCollectible> &&input_collectible) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::fragment_getCollectibleInfo(std::move(input_collectible))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::fragment_getCollectibleInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    if (result->amount_ <= 0 || !check_currency_amount(result->amount_)) {
-      LOG(ERROR) << "Receive invalid collectible item price " << result->amount_;
-      result->amount_ = 0;
-    }
-    if (result->crypto_currency_.empty() || result->crypto_amount_ <= 0) {
-      LOG(ERROR) << "Receive invalid collectible item cryptocurrency price " << result->crypto_amount_;
-      result->crypto_amount_ = 0;
-    }
-    promise_.set_value(td_api::make_object<td_api::collectibleItemInfo>(result->purchase_date_, result->currency_,
-                                                                        result->amount_, result->crypto_currency_,
-                                                                        result->crypto_amount_, result->url_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-void answer_shipping_query(Td *td, int64 shipping_query_id,
-                           vector<tl_object_ptr<td_api::shippingOption>> &&shipping_options,
-                           const string &error_message, Promise<Unit> &&promise) {
-  vector<tl_object_ptr<telegram_api::shippingOption>> options;
-  for (auto &option : shipping_options) {
-    if (option == nullptr) {
-      return promise.set_error(Status::Error(400, "Shipping option must be non-empty"));
-    }
-    if (!clean_input_string(option->id_)) {
-      return promise.set_error(Status::Error(400, "Shipping option identifier must be encoded in UTF-8"));
-    }
-    if (!clean_input_string(option->title_)) {
-      return promise.set_error(Status::Error(400, "Shipping option title must be encoded in UTF-8"));
-    }
-
-    vector<tl_object_ptr<telegram_api::labeledPrice>> prices;
-    for (auto &price_part : option->price_parts_) {
-      if (price_part == nullptr) {
-        return promise.set_error(Status::Error(400, "Shipping option price part must be non-empty"));
-      }
-      if (!clean_input_string(price_part->label_)) {
-        return promise.set_error(Status::Error(400, "Shipping option price part label must be encoded in UTF-8"));
-      }
-      if (!check_currency_amount(price_part->amount_)) {
-        return promise.set_error(Status::Error(400, "Too big amount of the currency specified"));
-      }
-
-      prices.push_back(make_tl_object<telegram_api::labeledPrice>(std::move(price_part->label_), price_part->amount_));
-    }
-
-    options.push_back(make_tl_object<telegram_api::shippingOption>(std::move(option->id_), std::move(option->title_),
-                                                                   std::move(prices)));
-  }
-
-  td->create_handler<SetBotShippingAnswerQuery>(std::move(promise))
-      ->send(shipping_query_id, error_message, std::move(options));
-}
-
-void answer_pre_checkout_query(Td *td, int64 pre_checkout_query_id, const string &error_message,
-                               Promise<Unit> &&promise) {
-  td->create_handler<SetBotPreCheckoutAnswerQuery>(std::move(promise))->send(pre_checkout_query_id, error_message);
-}
-
-void get_payment_form(Td *td, td_api::object_ptr<td_api::InputInvoice> &&input_invoice,
-                      const td_api::object_ptr<td_api::themeParameters> &theme,
-                      Promise<tl_object_ptr<td_api::paymentForm>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_invoice_info, get_input_invoice_info(td, std::move(input_invoice)));
-
-  tl_object_ptr<telegram_api::dataJSON> theme_parameters;
-  if (theme != nullptr) {
-    theme_parameters = make_tl_object<telegram_api::dataJSON>(string());
-    theme_parameters->data_ = ThemeManager::get_theme_parameters_json_string(theme);
-  }
-  td->create_handler<GetPaymentFormQuery>(std::move(promise))
-      ->send(std::move(input_invoice_info), std::move(theme_parameters));
-}
-
-void validate_order_info(Td *td, td_api::object_ptr<td_api::InputInvoice> &&input_invoice,
-                         td_api::object_ptr<td_api::orderInfo> &&order_info, bool allow_save,
-                         Promise<td_api::object_ptr<td_api::validatedOrderInfo>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_invoice_info, get_input_invoice_info(td, std::move(input_invoice)));
-
-  if (order_info != nullptr) {
-    if (!clean_input_string(order_info->name_)) {
-      return promise.set_error(Status::Error(400, "Name must be encoded in UTF-8"));
-    }
-    if (!clean_input_string(order_info->phone_number_)) {
-      return promise.set_error(Status::Error(400, "Phone number must be encoded in UTF-8"));
-    }
-    if (!clean_input_string(order_info->email_address_)) {
-      return promise.set_error(Status::Error(400, "Email address must be encoded in UTF-8"));
-    }
-    if (order_info->shipping_address_ != nullptr) {
-      if (!clean_input_string(order_info->shipping_address_->country_code_)) {
-        return promise.set_error(Status::Error(400, "Country code must be encoded in UTF-8"));
-      }
-      if (!clean_input_string(order_info->shipping_address_->state_)) {
-        return promise.set_error(Status::Error(400, "State must be encoded in UTF-8"));
-      }
-      if (!clean_input_string(order_info->shipping_address_->city_)) {
-        return promise.set_error(Status::Error(400, "City must be encoded in UTF-8"));
-      }
-      if (!clean_input_string(order_info->shipping_address_->street_line1_)) {
-        return promise.set_error(Status::Error(400, "Street address must be encoded in UTF-8"));
-      }
-      if (!clean_input_string(order_info->shipping_address_->street_line2_)) {
-        return promise.set_error(Status::Error(400, "Street address must be encoded in UTF-8"));
-      }
-      if (!clean_input_string(order_info->shipping_address_->postal_code_)) {
-        return promise.set_error(Status::Error(400, "Postal code must be encoded in UTF-8"));
-      }
-    }
-  }
-
-  td->create_handler<ValidateRequestedInfoQuery>(std::move(promise))
-      ->send(std::move(input_invoice_info), convert_order_info(std::move(order_info)), allow_save);
-}
-
-void send_payment_form(Td *td, td_api::object_ptr<td_api::InputInvoice> &&input_invoice, int64 payment_form_id,
-                       const string &order_info_id, const string &shipping_option_id,
-                       const td_api::object_ptr<td_api::InputCredentials> &credentials, int64 tip_amount,
-                       Promise<td_api::object_ptr<td_api::paymentResult>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_invoice_info, get_input_invoice_info(td, std::move(input_invoice)));
-
-  if (credentials == nullptr) {
-    if (tip_amount != 0 || !order_info_id.empty() || !shipping_option_id.empty()) {
-      return promise.set_error(Status::Error(400, "Invalid payment form parameters specified"));
-    }
-    if (!td->star_manager_->has_owned_star_count(input_invoice_info.star_count_)) {
-      return promise.set_error(Status::Error(400, "Have not enough Telegram Stars to complete payment"));
-    }
-    td->create_handler<SendStarPaymentFormQuery>(std::move(promise))
-        ->send(std::move(input_invoice_info), payment_form_id);
-    return;
-  }
-
-  tl_object_ptr<telegram_api::InputPaymentCredentials> input_credentials;
-  switch (credentials->get_id()) {
-    case td_api::inputCredentialsSaved::ID: {
-      auto credentials_saved = static_cast<const td_api::inputCredentialsSaved *>(credentials.get());
-      auto credentials_id = credentials_saved->saved_credentials_id_;
-      if (!clean_input_string(credentials_id)) {
-        return promise.set_error(Status::Error(400, "Credentials identifier must be encoded in UTF-8"));
-      }
-      auto temp_password_state = PasswordManager::get_temp_password_state_sync();
-      if (!temp_password_state.has_temp_password) {
-        return promise.set_error(Status::Error(400, "Temporary password required to use saved credentials"));
-      }
-
-      input_credentials = make_tl_object<telegram_api::inputPaymentCredentialsSaved>(
-          std::move(credentials_id), BufferSlice(temp_password_state.temp_password));
-      break;
-    }
-    case td_api::inputCredentialsNew::ID: {
-      auto credentials_new = static_cast<const td_api::inputCredentialsNew *>(credentials.get());
-      input_credentials = make_tl_object<telegram_api::inputPaymentCredentials>(
-          0, credentials_new->allow_save_, make_tl_object<telegram_api::dataJSON>(credentials_new->data_));
-      break;
-    }
-    case td_api::inputCredentialsGooglePay::ID: {
-      auto credentials_google_pay = static_cast<const td_api::inputCredentialsGooglePay *>(credentials.get());
-      input_credentials = make_tl_object<telegram_api::inputPaymentCredentialsGooglePay>(
-          make_tl_object<telegram_api::dataJSON>(credentials_google_pay->data_));
-      break;
-    }
-    case td_api::inputCredentialsApplePay::ID: {
-      auto credentials_apple_pay = static_cast<const td_api::inputCredentialsApplePay *>(credentials.get());
-      input_credentials = make_tl_object<telegram_api::inputPaymentCredentialsApplePay>(
-          make_tl_object<telegram_api::dataJSON>(credentials_apple_pay->data_));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  td->create_handler<SendPaymentFormQuery>(std::move(promise))
-      ->send(std::move(input_invoice_info), payment_form_id, order_info_id, shipping_option_id,
-             std::move(input_credentials), tip_amount);
-}
-
-void get_payment_receipt(Td *td, MessageFullId message_full_id,
-                         Promise<tl_object_ptr<td_api::paymentReceipt>> &&promise) {
-  TRY_RESULT_PROMISE(promise, server_message_id,
-                     td->messages_manager_->get_payment_successful_message_id(message_full_id));
-  td->create_handler<GetPaymentReceiptQuery>(std::move(promise))
-      ->send(message_full_id.get_dialog_id(), server_message_id);
-}
-
-void get_saved_order_info(Td *td, Promise<tl_object_ptr<td_api::orderInfo>> &&promise) {
-  td->create_handler<GetSavedInfoQuery>(std::move(promise))->send();
-}
-
-void delete_saved_order_info(Td *td, Promise<Unit> &&promise) {
-  td->create_handler<ClearSavedInfoQuery>(std::move(promise))->send(false, true);
-}
-
-void delete_saved_credentials(Td *td, Promise<Unit> &&promise) {
-  td->create_handler<ClearSavedInfoQuery>(std::move(promise))->send(true, false);
-}
-
-void export_invoice(Td *td, BusinessConnectionId business_connection_id,
-                    td_api::object_ptr<td_api::InputMessageContent> &&invoice, Promise<string> &&promise) {
-  if (invoice == nullptr) {
-    return promise.set_error(Status::Error(400, "Invoice must be non-empty"));
-  }
-  TRY_RESULT_PROMISE(promise, input_invoice,
-                     InputInvoice::process_input_message_invoice(std::move(invoice), td, DialogId()));
-  if (business_connection_id.is_valid()) {
-    TRY_STATUS_PROMISE(promise, td->business_connection_manager_->check_business_connection(
-                                    business_connection_id, td->dialog_manager_->get_my_dialog_id()));
-  }
-
-  auto input_media = input_invoice.get_input_media_invoice(td, nullptr, nullptr);
-  CHECK(input_media != nullptr);
-  td->create_handler<ExportInvoiceQuery>(std::move(promise))
-      ->send(std::move(business_connection_id), std::move(input_media));
-}
-
-void get_bank_card_info(Td *td, const string &bank_card_number,
-                        Promise<td_api::object_ptr<td_api::bankCardInfo>> &&promise) {
-  td->create_handler<GetBankCardInfoQuery>(std::move(promise))->send(bank_card_number);
-}
-
-void get_collectible_info(Td *td, td_api::object_ptr<td_api::CollectibleItemType> type,
-                          Promise<td_api::object_ptr<td_api::collectibleItemInfo>> &&promise) {
-  if (type == nullptr) {
-    return promise.set_error(Status::Error(400, "Item type must be non-empty"));
-  }
-  switch (type->get_id()) {
-    case td_api::collectibleItemTypeUsername::ID: {
-      auto username = td_api::move_object_as<td_api::collectibleItemTypeUsername>(type);
-      if (!clean_input_string(username->username_)) {
-        return promise.set_error(Status::Error(400, "Username must be encoded in UTF-8"));
-      }
-      td->create_handler<GetCollectibleInfoQuery>(std::move(promise))
-          ->send(telegram_api::make_object<telegram_api::inputCollectibleUsername>(username->username_));
-      break;
-    }
-    case td_api::collectibleItemTypePhoneNumber::ID: {
-      auto phone_number = td_api::move_object_as<td_api::collectibleItemTypePhoneNumber>(type);
-      if (!clean_input_string(phone_number->phone_number_)) {
-        return promise.set_error(Status::Error(400, "Phone number must be encoded in UTF-8"));
-      }
-      td->create_handler<GetCollectibleInfoQuery>(std::move(promise))
-          ->send(telegram_api::make_object<telegram_api::inputCollectiblePhone>(phone_number->phone_number_));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Payments.h b/third-party/td/td/td/telegram/Payments.h
deleted file mode 100644
index 362727e455..0000000000
--- a/third-party/td/td/td/telegram/Payments.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-void answer_shipping_query(Td *td, int64 shipping_query_id,
-                           vector<tl_object_ptr<td_api::shippingOption>> &&shipping_options,
-                           const string &error_message, Promise<Unit> &&promise);
-
-void answer_pre_checkout_query(Td *td, int64 pre_checkout_query_id, const string &error_message,
-                               Promise<Unit> &&promise);
-
-void get_payment_form(Td *td, td_api::object_ptr<td_api::InputInvoice> &&input_invoice,
-                      const td_api::object_ptr<td_api::themeParameters> &theme,
-                      Promise<tl_object_ptr<td_api::paymentForm>> &&promise);
-
-void validate_order_info(Td *td, td_api::object_ptr<td_api::InputInvoice> &&input_invoice,
-                         td_api::object_ptr<td_api::orderInfo> &&order_info, bool allow_save,
-                         Promise<td_api::object_ptr<td_api::validatedOrderInfo>> &&promise);
-
-void send_payment_form(Td *td, td_api::object_ptr<td_api::InputInvoice> &&input_invoice, int64 payment_form_id,
-                       const string &order_info_id, const string &shipping_option_id,
-                       const td_api::object_ptr<td_api::InputCredentials> &credentials, int64 tip_amount,
-                       Promise<td_api::object_ptr<td_api::paymentResult>> &&promise);
-
-void get_payment_receipt(Td *td, MessageFullId message_full_id,
-                         Promise<tl_object_ptr<td_api::paymentReceipt>> &&promise);
-
-void get_saved_order_info(Td *td, Promise<tl_object_ptr<td_api::orderInfo>> &&promise);
-
-void delete_saved_order_info(Td *td, Promise<Unit> &&promise);
-
-void delete_saved_credentials(Td *td, Promise<Unit> &&promise);
-
-void export_invoice(Td *td, BusinessConnectionId business_connection_id,
-                    td_api::object_ptr<td_api::InputMessageContent> &&invoice, Promise<string> &&promise);
-
-void get_bank_card_info(Td *td, const string &bank_card_number,
-                        Promise<td_api::object_ptr<td_api::bankCardInfo>> &&promise);
-
-void get_collectible_info(Td *td, td_api::object_ptr<td_api::CollectibleItemType> type,
-                          Promise<td_api::object_ptr<td_api::collectibleItemInfo>> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PeerColor.cpp b/third-party/td/td/td/telegram/PeerColor.cpp
deleted file mode 100644
index 6f3356acfe..0000000000
--- a/third-party/td/td/td/telegram/PeerColor.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PeerColor.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-PeerColor::PeerColor(const telegram_api::object_ptr<telegram_api::peerColor> &peer_color) {
-  if (peer_color == nullptr) {
-    return;
-  }
-  if ((peer_color->flags_ & telegram_api::peerColor::COLOR_MASK) != 0) {
-    accent_color_id_ = AccentColorId(peer_color->color_);
-    if (!accent_color_id_.is_valid()) {
-      LOG(ERROR) << "Receive " << to_string(peer_color);
-      accent_color_id_ = AccentColorId();
-    }
-  }
-  if ((peer_color->flags_ & telegram_api::peerColor::BACKGROUND_EMOJI_ID_MASK) != 0) {
-    background_custom_emoji_id_ = CustomEmojiId(peer_color->background_emoji_id_);
-    if (!background_custom_emoji_id_.is_valid()) {
-      LOG(ERROR) << "Receive " << to_string(peer_color);
-      background_custom_emoji_id_ = CustomEmojiId();
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PeerColor.h b/third-party/td/td/td/telegram/PeerColor.h
deleted file mode 100644
index d0f857637e..0000000000
--- a/third-party/td/td/td/telegram/PeerColor.h
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/telegram_api.h"
-
-namespace td {
-
-struct PeerColor {
-  AccentColorId accent_color_id_;
-  CustomEmojiId background_custom_emoji_id_;
-
-  explicit PeerColor(const telegram_api::object_ptr<telegram_api::peerColor> &peer_color);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PeopleNearbyManager.cpp b/third-party/td/td/td/telegram/PeopleNearbyManager.cpp
deleted file mode 100644
index cffb1c298d..0000000000
--- a/third-party/td/td/td/telegram/PeopleNearbyManager.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PeopleNearbyManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-
-namespace td {
-
-PeopleNearbyManager::PeopleNearbyManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  if (!td_->auth_manager_->is_bot()) {
-    G()->td_db()->get_binlog_pmc()->erase("location_visibility_expire_date");
-    G()->td_db()->get_binlog_pmc()->erase("pending_location_visibility_expire_date");
-  }
-}
-
-void PeopleNearbyManager::tear_down() {
-  parent_.reset();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PeopleNearbyManager.h b/third-party/td/td/td/telegram/PeopleNearbyManager.h
deleted file mode 100644
index d82bb78d83..0000000000
--- a/third-party/td/td/td/telegram/PeopleNearbyManager.h
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Td;
-
-class PeopleNearbyManager final : public Actor {
- public:
-  PeopleNearbyManager(Td *td, ActorShared<> parent);
-
- private:
-  void tear_down() final;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhoneNumberManager.cpp b/third-party/td/td/td/telegram/PhoneNumberManager.cpp
deleted file mode 100644
index fc04fdcda4..0000000000
--- a/third-party/td/td/td/telegram/PhoneNumberManager.cpp
+++ /dev/null
@@ -1,346 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PhoneNumberManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/SuggestedActionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-class SendCodeQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::auth_sentCode>> promise_;
-
- public:
-  explicit SendCodeQuery(Promise<telegram_api::object_ptr<telegram_api::auth_sentCode>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const telegram_api::Function &send_code) {
-    send_query(G()->net_query_creator().create(send_code));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_sendChangePhoneCode>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    switch (ptr->get_id()) {
-      case telegram_api::auth_sentCodeSuccess::ID:
-      case telegram_api::auth_sentCodePaymentRequired::ID:
-        return on_error(Status::Error(500, "Receive invalid response"));
-      case telegram_api::auth_sentCode::ID:
-        return promise_.set_value(telegram_api::move_object_as<telegram_api::auth_sentCode>(ptr));
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RequestFirebaseSmsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit RequestFirebaseSmsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const telegram_api::auth_requestFirebaseSms &query) {
-    send_query(G()->net_query_creator().create(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::auth_requestFirebaseSms>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReportMissingCodeQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ReportMissingCodeQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const telegram_api::auth_reportMissingCode &query) {
-    send_query(G()->net_query_creator().create(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::auth_reportMissingCode>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ChangePhoneQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ChangePhoneQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &phone_number, const string &phone_code_hash, const string &code) {
-    send_query(G()->net_query_creator().create(telegram_api::account_changePhone(phone_number, phone_code_hash, code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_changePhone>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_get_user(result_ptr.move_as_ok(), "ChangePhoneQuery");
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class VerifyPhoneQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit VerifyPhoneQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &phone_number, const string &phone_code_hash, const string &code) {
-    send_query(G()->net_query_creator().create(telegram_api::account_verifyPhone(phone_number, phone_code_hash, code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_verifyPhone>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ConfirmPhoneQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ConfirmPhoneQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &phone_code_hash, const string &code) {
-    send_query(G()->net_query_creator().create(telegram_api::account_confirmPhone(phone_code_hash, code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_confirmPhone>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-PhoneNumberManager::PhoneNumberManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void PhoneNumberManager::tear_down() {
-  parent_.reset();
-}
-
-void PhoneNumberManager::inc_generation() {
-  generation_++;
-  state_ = State::Ok;
-  send_code_helper_ = {};
-}
-
-void PhoneNumberManager::send_new_send_code_query(
-    const telegram_api::Function &send_code, Promise<td_api::object_ptr<td_api::authenticationCodeInfo>> &&promise) {
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), generation = generation_, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::auth_sentCode>> r_sent_code) mutable {
-        send_closure(actor_id, &PhoneNumberManager::on_send_code_result, std::move(r_sent_code), generation,
-                     std::move(promise));
-      });
-  td_->create_handler<SendCodeQuery>(std::move(query_promise))->send(send_code);
-}
-
-void PhoneNumberManager::on_send_code_result(Result<telegram_api::object_ptr<telegram_api::auth_sentCode>> r_sent_code,
-                                             int64 generation,
-                                             Promise<td_api::object_ptr<td_api::authenticationCodeInfo>> &&promise) {
-  G()->ignore_result_if_closing(r_sent_code);
-  if (r_sent_code.is_error()) {
-    return promise.set_error(r_sent_code.move_as_error());
-  }
-  if (generation != generation_) {
-    return promise.set_error(Status::Error(500, "Request was canceled"));
-  }
-  auto sent_code = r_sent_code.move_as_ok();
-
-  LOG(INFO) << "Receive " << to_string(sent_code);
-
-  switch (sent_code->type_->get_id()) {
-    case telegram_api::auth_sentCodeTypeSetUpEmailRequired::ID:
-    case telegram_api::auth_sentCodeTypeEmailCode::ID:
-      return promise.set_error(Status::Error(500, "Receive incorrect response"));
-    default:
-      break;
-  }
-
-  send_code_helper_.on_sent_code(std::move(sent_code));
-  state_ = State::WaitCode;
-
-  promise.set_value(send_code_helper_.get_authentication_code_info_object());
-}
-
-void PhoneNumberManager::set_phone_number(string phone_number,
-                                          td_api::object_ptr<td_api::phoneNumberAuthenticationSettings> settings,
-                                          td_api::object_ptr<td_api::PhoneNumberCodeType> type,
-                                          Promise<td_api::object_ptr<td_api::authenticationCodeInfo>> &&promise) {
-  inc_generation();
-  if (phone_number.empty()) {
-    return promise.set_error(Status::Error(400, "Phone number must be non-empty"));
-  }
-  if (type == nullptr) {
-    return promise.set_error(Status::Error(400, "Type must be non-empty"));
-  }
-
-  switch (type->get_id()) {
-    case td_api::phoneNumberCodeTypeChange::ID:
-      type_ = Type::ChangePhone;
-      send_closure(G()->suggested_action_manager(), &SuggestedActionManager::hide_suggested_action,
-                   SuggestedAction{SuggestedAction::Type::CheckPhoneNumber});
-      return send_new_send_code_query(send_code_helper_.send_change_phone_code(phone_number, settings),
-                                      std::move(promise));
-    case td_api::phoneNumberCodeTypeVerify::ID:
-      type_ = Type::VerifyPhone;
-      return send_new_send_code_query(send_code_helper_.send_verify_phone_code(phone_number, settings),
-                                      std::move(promise));
-    case td_api::phoneNumberCodeTypeConfirmOwnership::ID: {
-      auto hash = std::move(static_cast<td_api::phoneNumberCodeTypeConfirmOwnership *>(type.get())->hash_);
-      if (!clean_input_string(hash)) {
-        return promise.set_error(Status::Error(400, "Hash must be encoded in UTF-8"));
-      }
-      if (hash.empty()) {
-        return promise.set_error(Status::Error(400, "Hash must be non-empty"));
-      }
-
-      type_ = Type::ConfirmPhone;
-      return send_new_send_code_query(send_code_helper_.send_confirm_phone_code(hash, phone_number, settings),
-                                      std::move(promise));
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void PhoneNumberManager::send_firebase_sms(const string &token, Promise<Unit> &&promise) {
-  if (state_ != State::WaitCode) {
-    return promise.set_error(Status::Error(400, "Can't send Firebase SMS"));
-  }
-
-  td_->create_handler<RequestFirebaseSmsQuery>(std::move(promise))->send(send_code_helper_.request_firebase_sms(token));
-}
-
-void PhoneNumberManager::report_missing_code(const string &mobile_network_code, Promise<Unit> &&promise) {
-  if (state_ != State::WaitCode) {
-    return promise.set_error(Status::Error(400, "Can't report missing code"));
-  }
-
-  td_->create_handler<ReportMissingCodeQuery>(std::move(promise))
-      ->send(send_code_helper_.report_missing_code(mobile_network_code));
-}
-
-void PhoneNumberManager::resend_authentication_code(
-    td_api::object_ptr<td_api::ResendCodeReason> &&reason,
-    Promise<td_api::object_ptr<td_api::authenticationCodeInfo>> &&promise) {
-  if (state_ != State::WaitCode) {
-    return promise.set_error(Status::Error(400, "Can't resend code"));
-  }
-
-  TRY_RESULT_PROMISE(promise, resend_code, send_code_helper_.resend_code(std::move(reason)));
-  send_new_send_code_query(std::move(resend_code), std::move(promise));
-}
-
-void PhoneNumberManager::check_code(string code, Promise<Unit> &&promise) {
-  if (state_ != State::WaitCode) {
-    return promise.set_error(Status::Error(400, "Can't check code"));
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), generation = generation_, promise = std::move(promise)](Result<Unit> result) mutable {
-        send_closure(actor_id, &PhoneNumberManager::on_check_code_result, std::move(result), generation,
-                     std::move(promise));
-      });
-  switch (type_) {
-    case Type::ChangePhone:
-      td_->create_handler<ChangePhoneQuery>(std::move(query_promise))
-          ->send(send_code_helper_.phone_number().str(), send_code_helper_.phone_code_hash().str(), code);
-      break;
-    case Type::VerifyPhone:
-      td_->create_handler<VerifyPhoneQuery>(std::move(query_promise))
-          ->send(send_code_helper_.phone_number().str(), send_code_helper_.phone_code_hash().str(), code);
-      break;
-    case Type::ConfirmPhone:
-      td_->create_handler<ConfirmPhoneQuery>(std::move(query_promise))
-          ->send(send_code_helper_.phone_code_hash().str(), code);
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void PhoneNumberManager::on_check_code_result(Result<Unit> result, int64 generation, Promise<Unit> &&promise) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-  if (generation != generation_) {
-    return promise.set_error(Status::Error(500, "Request was canceled"));
-  }
-
-  inc_generation();
-
-  promise.set_value(Unit());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhoneNumberManager.h b/third-party/td/td/td/telegram/PhoneNumberManager.h
deleted file mode 100644
index 201ba0cf39..0000000000
--- a/third-party/td/td/td/telegram/PhoneNumberManager.h
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/SendCodeHelper.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class PhoneNumberManager final : public Actor {
- public:
-  PhoneNumberManager(Td *td, ActorShared<> parent);
-
-  void set_phone_number(string phone_number, td_api::object_ptr<td_api::phoneNumberAuthenticationSettings> settings,
-                        td_api::object_ptr<td_api::PhoneNumberCodeType> type,
-                        Promise<td_api::object_ptr<td_api::authenticationCodeInfo>> &&promise);
-
-  void send_firebase_sms(const string &token, Promise<Unit> &&promise);
-
-  void report_missing_code(const string &mobile_network_code, Promise<Unit> &&promise);
-
-  void resend_authentication_code(td_api::object_ptr<td_api::ResendCodeReason> &&reason,
-                                  Promise<td_api::object_ptr<td_api::authenticationCodeInfo>> &&promise);
-
-  void check_code(string code, Promise<Unit> &&promise);
-
- private:
-  enum class Type : int32 { ChangePhone, VerifyPhone, ConfirmPhone };
-  enum class State : int32 { Ok, WaitCode } state_ = State::Ok;
-
-  void tear_down() final;
-
-  void inc_generation();
-
-  void send_new_send_code_query(const telegram_api::Function &send_code,
-                                Promise<td_api::object_ptr<td_api::authenticationCodeInfo>> &&promise);
-
-  void on_send_code_result(Result<telegram_api::object_ptr<telegram_api::auth_sentCode>> r_sent_code, int64 generation,
-                           Promise<td_api::object_ptr<td_api::authenticationCodeInfo>> &&promise);
-
-  void on_check_code_result(Result<Unit> result, int64 generation, Promise<Unit> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  Type type_;
-  SendCodeHelper send_code_helper_;
-  int64 generation_ = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Photo.cpp b/third-party/td/td/td/telegram/Photo.cpp
deleted file mode 100644
index c39a6f52e2..0000000000
--- a/third-party/td/td/td/telegram/Photo.cpp
+++ /dev/null
@@ -1,793 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Photo.h"
-
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/PhotoSizeType.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <algorithm>
-
-namespace td {
-
-int64 get_profile_photo_id(const tl_object_ptr<telegram_api::UserProfilePhoto> &profile_photo_ptr) {
-  if (profile_photo_ptr != nullptr && profile_photo_ptr->get_id() == telegram_api::userProfilePhoto::ID) {
-    return static_cast<const telegram_api::userProfilePhoto *>(profile_photo_ptr.get())->photo_id_;
-  }
-  return 0;
-}
-
-ProfilePhoto get_profile_photo(FileManager *file_manager, UserId user_id, int64 user_access_hash,
-                               tl_object_ptr<telegram_api::UserProfilePhoto> &&profile_photo_ptr) {
-  ProfilePhoto result;
-  int32 profile_photo_id =
-      profile_photo_ptr == nullptr ? telegram_api::userProfilePhotoEmpty::ID : profile_photo_ptr->get_id();
-  switch (profile_photo_id) {
-    case telegram_api::userProfilePhotoEmpty::ID:
-      break;
-    case telegram_api::userProfilePhoto::ID: {
-      auto profile_photo = move_tl_object_as<telegram_api::userProfilePhoto>(profile_photo_ptr);
-      if (profile_photo->photo_id_ == 0 || profile_photo->photo_id_ == -2) {
-        LOG(ERROR) << "Receive a profile photo without identifier " << to_string(profile_photo);
-        break;
-      }
-
-      auto dc_id = DcId::create(profile_photo->dc_id_);
-      result.has_animation = profile_photo->has_video_;
-      result.is_personal = profile_photo->personal_;
-      result.id = profile_photo->photo_id_;
-      result.minithumbnail = profile_photo->stripped_thumb_.as_slice().str();
-      result.small_file_id =
-          register_photo_size(file_manager, PhotoSizeSource::dialog_photo(DialogId(user_id), user_access_hash, false),
-                              result.id, 0 /*access_hash*/, "" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id,
-                              PhotoFormat::Jpeg, "get_profile_photo small");
-      result.big_file_id =
-          register_photo_size(file_manager, PhotoSizeSource::dialog_photo(DialogId(user_id), user_access_hash, true),
-                              result.id, 0 /*access_hash*/, "" /*file_reference*/, DialogId(), 0 /*file_size*/, dc_id,
-                              PhotoFormat::Jpeg, "get_profile_photo big");
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  return result;
-}
-
-tl_object_ptr<td_api::profilePhoto> get_profile_photo_object(FileManager *file_manager,
-                                                             const ProfilePhoto &profile_photo) {
-  if (!profile_photo.small_file_id.is_valid()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::profilePhoto>(
-      profile_photo.id, file_manager->get_file_object(profile_photo.small_file_id),
-      file_manager->get_file_object(profile_photo.big_file_id), get_minithumbnail_object(profile_photo.minithumbnail),
-      profile_photo.has_animation, profile_photo.is_personal);
-}
-
-bool need_update_profile_photo(const ProfilePhoto &from, const ProfilePhoto &to) {
-  return from.id != to.id || need_update_dialog_photo(from, to);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ProfilePhoto &profile_photo) {
-  return string_builder << "<ID = " << profile_photo.id << ", small_file_id = " << profile_photo.small_file_id
-                        << ", big_file_id = " << profile_photo.big_file_id
-                        << ", has_animation = " << profile_photo.has_animation
-                        << ", is_personal = " << profile_photo.is_personal << '>';
-}
-
-DialogPhoto get_dialog_photo(FileManager *file_manager, DialogId dialog_id, int64 dialog_access_hash,
-                             telegram_api::object_ptr<telegram_api::ChatPhoto> &&chat_photo_ptr) {
-  int32 chat_photo_id = chat_photo_ptr == nullptr ? telegram_api::chatPhotoEmpty::ID : chat_photo_ptr->get_id();
-
-  DialogPhoto result;
-  switch (chat_photo_id) {
-    case telegram_api::chatPhotoEmpty::ID:
-      break;
-    case telegram_api::chatPhoto::ID: {
-      auto chat_photo = telegram_api::move_object_as<telegram_api::chatPhoto>(chat_photo_ptr);
-
-      auto dc_id = DcId::create(chat_photo->dc_id_);
-      result.has_animation = chat_photo->has_video_;
-      result.is_personal = false;
-      result.minithumbnail = chat_photo->stripped_thumb_.as_slice().str();
-      result.small_file_id = register_photo_size(
-          file_manager, PhotoSizeSource::dialog_photo(dialog_id, dialog_access_hash, false), chat_photo->photo_id_, 0,
-          "", DialogId(), 0, dc_id, PhotoFormat::Jpeg, "get_dialog_photo small");
-      result.big_file_id = register_photo_size(
-          file_manager, PhotoSizeSource::dialog_photo(dialog_id, dialog_access_hash, true), chat_photo->photo_id_, 0,
-          "", DialogId(), 0, dc_id, PhotoFormat::Jpeg, "get_dialog_photo big");
-
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  return result;
-}
-
-tl_object_ptr<td_api::chatPhotoInfo> get_chat_photo_info_object(FileManager *file_manager,
-                                                                const DialogPhoto *dialog_photo) {
-  if (dialog_photo == nullptr || !dialog_photo->small_file_id.is_valid()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::chatPhotoInfo>(file_manager->get_file_object(dialog_photo->small_file_id),
-                                                    file_manager->get_file_object(dialog_photo->big_file_id),
-                                                    get_minithumbnail_object(dialog_photo->minithumbnail),
-                                                    dialog_photo->has_animation, dialog_photo->is_personal);
-}
-
-vector<FileId> dialog_photo_get_file_ids(const DialogPhoto &dialog_photo) {
-  vector<FileId> result;
-  if (dialog_photo.small_file_id.is_valid()) {
-    result.push_back(dialog_photo.small_file_id);
-  }
-  if (dialog_photo.big_file_id.is_valid()) {
-    result.push_back(dialog_photo.big_file_id);
-  }
-  return result;
-}
-
-DialogPhoto as_fake_dialog_photo(const Photo &photo, DialogId dialog_id, bool is_personal) {
-  DialogPhoto result;
-  if (!photo.is_empty()) {
-    for (auto &size : photo.photos) {
-      if (size.type == 'a') {
-        result.small_file_id = size.file_id;
-      } else if (size.type == 'c') {
-        result.big_file_id = size.file_id;
-      }
-    }
-    result.minithumbnail = photo.minithumbnail;
-    result.has_animation = !photo.animations.empty();
-    result.is_personal = is_personal;
-    if (!result.small_file_id.is_valid() || !result.big_file_id.is_valid()) {
-      LOG(ERROR) << "Failed to convert " << photo << " to chat photo of " << dialog_id;
-      return DialogPhoto();
-    }
-  }
-  return result;
-}
-
-DialogPhoto as_dialog_photo(FileManager *file_manager, DialogId dialog_id, int64 dialog_access_hash, const Photo &photo,
-                            bool is_personal) {
-  DialogPhoto result;
-  static_cast<DialogPhoto &>(result) = as_fake_dialog_photo(photo, dialog_id, is_personal);
-  if (!result.small_file_id.is_valid()) {
-    return result;
-  }
-
-  auto reregister_photo = [&](bool is_big, FileId file_id) {
-    auto file_view = file_manager->get_file_view(file_id);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    auto remote = *full_remote_location;
-    CHECK(remote.is_photo());
-    CHECK(!remote.is_web());
-    remote.set_source(PhotoSizeSource::dialog_photo(dialog_id, dialog_access_hash, is_big));
-    return file_manager->register_remote(std::move(remote), FileLocationSource::FromServer, DialogId(), 0, 0,
-                                         file_view.remote_name());
-  };
-
-  result.small_file_id = reregister_photo(false, result.small_file_id);
-  result.big_file_id = reregister_photo(true, result.big_file_id);
-
-  return result;
-}
-
-ProfilePhoto as_profile_photo(FileManager *file_manager, UserId user_id, int64 user_access_hash, const Photo &photo,
-                              bool is_personal) {
-  ProfilePhoto result;
-  static_cast<DialogPhoto &>(result) =
-      as_dialog_photo(file_manager, DialogId(user_id), user_access_hash, photo, is_personal);
-  if (result.small_file_id.is_valid()) {
-    result.id = photo.id.get();
-  }
-  return result;
-}
-
-bool is_same_dialog_photo(FileManager *file_manager, DialogId dialog_id, const Photo &photo,
-                          const DialogPhoto &dialog_photo, bool is_personal) {
-  auto get_unique_file_id = [file_manager](FileId file_id) {
-    return file_manager->get_file_view(file_id).get_unique_file_id();
-  };
-  auto fake_photo = as_fake_dialog_photo(photo, dialog_id, is_personal);
-  return get_unique_file_id(fake_photo.small_file_id) == get_unique_file_id(dialog_photo.small_file_id) &&
-         get_unique_file_id(fake_photo.big_file_id) == get_unique_file_id(dialog_photo.big_file_id);
-}
-
-bool need_update_dialog_photo(const DialogPhoto &from, const DialogPhoto &to) {
-  return from.small_file_id != to.small_file_id || from.big_file_id != to.big_file_id ||
-         from.has_animation != to.has_animation || from.is_personal != to.is_personal;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogPhoto &dialog_photo) {
-  return string_builder << "<small_file_id = " << dialog_photo.small_file_id
-                        << ", big_file_id = " << dialog_photo.big_file_id
-                        << ", has_animation = " << dialog_photo.has_animation
-                        << ", is_personal = " << dialog_photo.is_personal << '>';
-}
-
-static td_api::object_ptr<td_api::photoSize> get_photo_size_object(FileManager *file_manager,
-                                                                   const PhotoSize *photo_size) {
-  CHECK(photo_size != nullptr);
-  LOG_CHECK(photo_size->file_id.is_valid()) << *photo_size;
-  return td_api::make_object<td_api::photoSize>(
-      photo_size->type.type ? std::string(1, static_cast<char>(photo_size->type.type))
-                            : std::string(),  // TODO replace string type with integer type
-      file_manager->get_file_object(photo_size->file_id), photo_size->dimensions.width, photo_size->dimensions.height,
-      vector<int32>(photo_size->progressive_sizes));
-}
-
-static vector<td_api::object_ptr<td_api::photoSize>> get_photo_sizes_object(FileManager *file_manager,
-                                                                            const vector<PhotoSize> &photo_sizes) {
-  auto sizes = transform(photo_sizes, [file_manager](const PhotoSize &photo_size) {
-    return get_photo_size_object(file_manager, &photo_size);
-  });
-  std::stable_sort(sizes.begin(), sizes.end(), [](const auto &lhs, const auto &rhs) {
-    if (lhs->photo_->expected_size_ != rhs->photo_->expected_size_) {
-      return lhs->photo_->expected_size_ < rhs->photo_->expected_size_;
-    }
-    return static_cast<uint32>(lhs->width_) * static_cast<uint32>(lhs->height_) <
-           static_cast<uint32>(rhs->width_) * static_cast<uint32>(rhs->height_);
-  });
-  td::remove_if(sizes, [](const auto &size) {
-    return !size->photo_->local_->can_be_downloaded_ && !size->photo_->local_->is_downloading_active_ &&
-           !size->photo_->local_->is_downloading_completed_;
-  });
-  return sizes;
-}
-
-static tl_object_ptr<td_api::animatedChatPhoto> get_animated_chat_photo_object(FileManager *file_manager,
-                                                                               const AnimationSize *animation_size) {
-  if (animation_size == nullptr || !animation_size->file_id.is_valid()) {
-    return nullptr;
-  }
-
-  return td_api::make_object<td_api::animatedChatPhoto>(animation_size->dimensions.width,
-                                                        file_manager->get_file_object(animation_size->file_id),
-                                                        animation_size->main_frame_timestamp);
-}
-
-Photo get_encrypted_file_photo(FileManager *file_manager, unique_ptr<EncryptedFile> &&file,
-                               tl_object_ptr<secret_api::decryptedMessageMediaPhoto> &&photo,
-                               DialogId owner_dialog_id) {
-  FileId file_id = file_manager->register_remote(
-      FullRemoteFileLocation(FileType::Encrypted, file->id_, file->access_hash_, DcId::create(file->dc_id_), string()),
-      FileLocationSource::FromServer, owner_dialog_id, photo->size_, 0,
-      PSTRING() << static_cast<uint64>(file->id_) << ".jpg");
-  file_manager->set_encryption_key(file_id, FileEncryptionKey{photo->key_.as_slice(), photo->iv_.as_slice()});
-
-  Photo res;
-  res.id = 0;
-  res.date = 0;
-
-  if (!photo->thumb_.empty()) {
-    res.photos.push_back(get_secret_thumbnail_photo_size(file_manager, std::move(photo->thumb_), owner_dialog_id,
-                                                         photo->thumb_w_, photo->thumb_h_));
-  }
-
-  PhotoSize s;
-  s.type = PhotoSizeType('i');
-  s.dimensions = get_dimensions(photo->w_, photo->h_, nullptr);
-  s.size = photo->size_;
-  s.file_id = file_id;
-  res.photos.push_back(s);
-
-  return res;
-}
-
-Photo get_photo(Td *td, tl_object_ptr<telegram_api::Photo> &&photo, DialogId owner_dialog_id, FileType file_type) {
-  if (photo == nullptr || photo->get_id() == telegram_api::photoEmpty::ID) {
-    return Photo();
-  }
-  CHECK(photo->get_id() == telegram_api::photo::ID);
-  return get_photo(td, move_tl_object_as<telegram_api::photo>(photo), owner_dialog_id, file_type);
-}
-
-Photo get_photo(Td *td, tl_object_ptr<telegram_api::photo> &&photo, DialogId owner_dialog_id, FileType file_type) {
-  CHECK(photo != nullptr);
-  Photo res;
-
-  res.id = photo->id_;
-  res.date = photo->date_;
-  res.has_stickers = photo->has_stickers_;
-
-  if (res.is_empty()) {
-    LOG(ERROR) << "Receive photo with identifier " << res.id.get();
-    res.id = -3;
-  }
-
-  DcId dc_id = DcId::create(photo->dc_id_);
-  for (auto &size_ptr : photo->sizes_) {
-    auto photo_size = get_photo_size(td->file_manager_.get(), PhotoSizeSource::thumbnail(file_type, 0), photo->id_,
-                                     photo->access_hash_, photo->file_reference_.as_slice().str(), dc_id,
-                                     owner_dialog_id, std::move(size_ptr), PhotoFormat::Jpeg);
-    if (photo_size.get_offset() == 0) {
-      PhotoSize &size = photo_size.get<0>();
-      if (size.type == 0 || size.type == 't' || size.type == 'i' || size.type == 'p' || size.type == 'u' ||
-          size.type == 'v') {
-        LOG(ERROR) << "Skip unallowed photo size " << size;
-        continue;
-      }
-      res.photos.push_back(std::move(size));
-    } else {
-      res.minithumbnail = std::move(photo_size.get<1>());
-    }
-  }
-
-  for (auto &size_ptr : photo->video_sizes_) {
-    auto animation =
-        process_video_size(td, PhotoSizeSource::thumbnail(file_type, 0), photo->id_, photo->access_hash_,
-                           photo->file_reference_.as_slice().str(), dc_id, owner_dialog_id, std::move(size_ptr));
-    if (animation.empty()) {
-      continue;
-    }
-    animation.visit(overloaded(
-        [&](AnimationSize &&animation_size) {
-          if (animation_size.type != 0 && animation_size.dimensions.width == animation_size.dimensions.height) {
-            res.animations.push_back(std::move(animation_size));
-          }
-        },
-        [&](unique_ptr<StickerPhotoSize> &&sticker_photo_size) {
-          res.sticker_photo_size = std::move(sticker_photo_size);
-        }));
-  }
-
-  return res;
-}
-
-Photo get_web_document_photo(FileManager *file_manager, tl_object_ptr<telegram_api::WebDocument> web_document,
-                             DialogId owner_dialog_id) {
-  PhotoSize s = get_web_document_photo_size(file_manager, FileType::Photo, owner_dialog_id, std::move(web_document));
-  Photo photo;
-  if (s.file_id.is_valid() && s.type != 'v' && s.type != 'g') {
-    photo.id = 0;
-    photo.photos.push_back(s);
-  }
-  return photo;
-}
-
-Result<Photo> create_photo(FileManager *file_manager, FileId file_id, PhotoSize &&thumbnail, int32 width, int32 height,
-                           vector<FileId> &&sticker_file_ids) {
-  TRY_RESULT(input_photo_size, get_input_photo_size(file_manager, file_id, width, height));
-
-  Photo photo;
-  auto file_view = file_manager->get_file_view(file_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location != nullptr && !full_remote_location->is_web()) {
-    photo.id = full_remote_location->get_id();
-  }
-  if (photo.is_empty()) {
-    photo.id = 0;
-  }
-  photo.date = G()->unix_time();
-  if (thumbnail.file_id.is_valid()) {
-    photo.photos.push_back(std::move(thumbnail));
-  }
-  photo.photos.push_back(std::move(input_photo_size));
-  photo.has_stickers = !sticker_file_ids.empty();
-  photo.sticker_file_ids = std::move(sticker_file_ids);
-  return std::move(photo);
-}
-
-Photo dup_photo(Photo photo) {
-  CHECK(!photo.photos.empty());
-
-  // Find 'i' or largest
-  PhotoSize input_size;
-  for (const auto &size : photo.photos) {
-    if (size.type == 'i') {
-      input_size = size;
-    }
-  }
-  if (input_size.type == 0) {
-    for (const auto &size : photo.photos) {
-      if (input_size.type == 0 || input_size < size) {
-        input_size = size;
-      }
-    }
-  }
-
-  // Find 't' or smallest
-  PhotoSize thumbnail;
-  for (const auto &size : photo.photos) {
-    if (size.type == 't') {
-      thumbnail = size;
-    }
-  }
-  if (thumbnail.type == 0) {
-    for (const auto &size : photo.photos) {
-      if (size.type != input_size.type && (thumbnail.type == 0 || size < thumbnail)) {
-        thumbnail = size;
-      }
-    }
-  }
-
-  Photo result;
-  result.id = std::move(photo.id);
-  result.date = photo.date;
-  result.minithumbnail = std::move(photo.minithumbnail);
-  result.has_stickers = photo.has_stickers;
-  result.sticker_file_ids = std::move(photo.sticker_file_ids);
-
-  if (thumbnail.type != 0) {
-    thumbnail.type = PhotoSizeType('t');
-    result.photos.push_back(std::move(thumbnail));
-  }
-  input_size.type = PhotoSizeType('i');
-  result.photos.push_back(std::move(input_size));
-
-  return result;
-}
-
-tl_object_ptr<td_api::photo> get_photo_object(FileManager *file_manager, const Photo &photo) {
-  if (photo.is_empty()) {
-    return nullptr;
-  }
-
-  return td_api::make_object<td_api::photo>(photo.has_stickers, get_minithumbnail_object(photo.minithumbnail),
-                                            get_photo_sizes_object(file_manager, photo.photos));
-}
-
-tl_object_ptr<td_api::chatPhoto> get_chat_photo_object(FileManager *file_manager, const Photo &photo) {
-  if (photo.is_empty()) {
-    return nullptr;
-  }
-
-  const AnimationSize *small_animation = nullptr;
-  const AnimationSize *big_animation = nullptr;
-  for (auto &animation : photo.animations) {
-    if (animation.type == 'p') {
-      small_animation = &animation;
-    } else if (animation.type == 'u') {
-      big_animation = &animation;
-    }
-  }
-  if (big_animation == nullptr && small_animation != nullptr) {
-    LOG(ERROR) << "Have small animation without big animation in " << photo;
-    small_animation = nullptr;
-  }
-  auto chat_photo_sticker =
-      photo.sticker_photo_size == nullptr ? nullptr : photo.sticker_photo_size->get_chat_photo_sticker_object();
-  return td_api::make_object<td_api::chatPhoto>(
-      photo.id.get(), photo.date, get_minithumbnail_object(photo.minithumbnail),
-      get_photo_sizes_object(file_manager, photo.photos), get_animated_chat_photo_object(file_manager, big_animation),
-      get_animated_chat_photo_object(file_manager, small_animation), std::move(chat_photo_sticker));
-}
-
-void merge_photos(Td *td, const Photo *old_photo, Photo *new_photo, DialogId dialog_id, bool need_merge_files,
-                  bool &is_content_changed, bool &need_update) {
-  if (old_photo->date != new_photo->date) {
-    LOG(DEBUG) << "Photo date has changed from " << old_photo->date << " to " << new_photo->date;
-    is_content_changed = true;
-  }
-  if (old_photo->id.get() != new_photo->id.get() || old_photo->minithumbnail != new_photo->minithumbnail) {
-    need_update = true;
-  }
-  if (old_photo->photos != new_photo->photos) {
-    LOG(DEBUG) << "Merge photos " << old_photo->photos << " and " << new_photo->photos
-               << ", need_merge_files = " << need_merge_files;
-    auto new_photos_size = new_photo->photos.size();
-    auto old_photos_size = old_photo->photos.size();
-
-    bool need_merge = false;
-    if (need_merge_files && (old_photos_size == 1 || (old_photos_size == 2 && old_photo->photos[0].type == 't')) &&
-        old_photo->photos.back().type == 'i') {
-      // first time get info about sent photo
-      if (!new_photo->photos.empty() && new_photo->photos.back().type == 'i') {
-        // remove previous 'i' size for the photo if any
-        new_photo->photos.pop_back();
-      }
-      if (!new_photo->photos.empty() && new_photo->photos.back().type == 't') {
-        // remove previous 't' size for the photo if any
-        new_photo->photos.pop_back();
-      }
-
-      // add back 't' and 'i' sizes
-      if (old_photos_size == 2) {
-        new_photo->photos.push_back(old_photo->photos[0]);
-      }
-      new_photo->photos.push_back(old_photo->photos.back());
-      need_merge = true;
-      need_update = true;
-    } else {
-      // get sent photo again
-      if (old_photos_size == 2 + new_photos_size && old_photo->photos[new_photos_size].type == 't') {
-        new_photo->photos.push_back(old_photo->photos[new_photos_size]);
-      }
-      if (old_photos_size == 1 + new_photo->photos.size() && old_photo->photos.back().type == 'i') {
-        new_photo->photos.push_back(old_photo->photos.back());
-        need_merge = true;
-      }
-      if (old_photo->photos != new_photo->photos) {
-        new_photo->photos.resize(new_photos_size);  // return previous size, because we shouldn't add local photo sizes
-        need_merge = false;
-        need_update = true;
-      }
-    }
-
-    LOG(DEBUG) << "Merge photos " << old_photo->photos << " and " << new_photo->photos
-               << " with new photos size = " << new_photos_size << ", need_merge = " << need_merge
-               << ", need_update = " << need_update;
-    if (need_merge && new_photos_size != 0) {
-      CHECK(!old_photo->photos.empty());
-      CHECK(old_photo->photos.back().type == 'i');
-      FileId old_file_id = old_photo->photos.back().file_id;
-      FileView old_file_view = td->file_manager_->get_file_view(old_file_id);
-      const auto *old_main_remote_location = old_file_view.get_main_remote_location();
-      FileId new_file_id = new_photo->photos[0].file_id;
-      FileView new_file_view = td->file_manager_->get_file_view(new_file_id);
-      const auto *new_full_remote_location = new_file_view.get_full_remote_location();
-      CHECK(new_full_remote_location != nullptr);
-
-      LOG(DEBUG) << "Trying to merge old file " << old_file_id << " and new file " << new_file_id;
-
-      if (new_full_remote_location->is_web()) {
-        LOG(ERROR) << "Have remote web photo location";
-      } else if (old_main_remote_location == nullptr ||
-                 old_main_remote_location->get_file_reference() != new_full_remote_location->get_file_reference() ||
-                 old_main_remote_location->get_access_hash() != new_full_remote_location->get_access_hash()) {
-        FileId file_id = td->file_manager_->register_remote(
-            FullRemoteFileLocation(PhotoSizeSource::thumbnail(new_file_view.get_type(), 'i'),
-                                   new_full_remote_location->get_id(), new_full_remote_location->get_access_hash(),
-                                   DcId::invalid(), new_full_remote_location->get_file_reference().str()),
-            FileLocationSource::FromServer, dialog_id, old_photo->photos.back().size, 0, "");
-        LOG_STATUS(td->file_manager_->merge(file_id, old_file_id));
-      }
-    }
-  }
-}
-
-void photo_delete_thumbnail(Photo &photo) {
-  for (size_t i = 0; i < photo.photos.size(); i++) {
-    if (photo.photos[i].type == 't') {
-      photo.photos.erase(photo.photos.begin() + i);
-      return;
-    }
-  }
-}
-
-tl_object_ptr<telegram_api::InputMedia> photo_get_input_media(
-    FileManager *file_manager, const Photo &photo, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    int32 ttl, bool has_spoiler) {
-  if (!photo.photos.empty()) {
-    auto file_id = photo.photos.back().file_id;
-    auto file_view = file_manager->get_file_view(file_id);
-    if (file_view.is_encrypted()) {
-      return nullptr;
-    }
-    const auto *main_remote_location = file_view.get_main_remote_location();
-    if (main_remote_location != nullptr && !main_remote_location->is_web() && input_file == nullptr) {
-      int32 flags = 0;
-      if (ttl != 0) {
-        flags |= telegram_api::inputMediaPhoto::TTL_SECONDS_MASK;
-      }
-      return make_tl_object<telegram_api::inputMediaPhoto>(flags, has_spoiler, main_remote_location->as_input_photo(),
-                                                           ttl);
-    }
-    const auto *url = file_view.get_url();
-    if (url != nullptr) {
-      int32 flags = 0;
-      if (ttl != 0) {
-        flags |= telegram_api::inputMediaPhotoExternal::TTL_SECONDS_MASK;
-      }
-      LOG(INFO) << "Create inputMediaPhotoExternal with a URL " << *url << " and self-destruct time " << ttl;
-      return make_tl_object<telegram_api::inputMediaPhotoExternal>(flags, has_spoiler, *url, ttl);
-    }
-    if (input_file == nullptr) {
-      CHECK(main_remote_location == nullptr);
-    }
-  }
-  if (input_file != nullptr) {
-    int32 flags = 0;
-    vector<tl_object_ptr<telegram_api::InputDocument>> added_stickers;
-    if (photo.has_stickers) {
-      flags |= telegram_api::inputMediaUploadedPhoto::STICKERS_MASK;
-      added_stickers = file_manager->get_input_documents(photo.sticker_file_ids);
-    }
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaUploadedPhoto::TTL_SECONDS_MASK;
-    }
-
-    CHECK(!photo.photos.empty());
-    return make_tl_object<telegram_api::inputMediaUploadedPhoto>(flags, has_spoiler, std::move(input_file),
-                                                                 std::move(added_stickers), ttl);
-  }
-  return nullptr;
-}
-
-SecretInputMedia photo_get_secret_input_media(FileManager *file_manager, const Photo &photo,
-                                              telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                              const string &caption, BufferSlice thumbnail) {
-  FileId file_id;
-  int32 width = 0;
-  int32 height = 0;
-
-  FileId thumbnail_file_id;
-  int32 thumbnail_width = 0;
-  int32 thumbnail_height = 0;
-  for (const auto &size : photo.photos) {
-    if (size.type == 'i') {
-      file_id = size.file_id;
-      width = size.dimensions.width;
-      height = size.dimensions.height;
-    }
-    if (size.type == 't') {
-      thumbnail_file_id = size.file_id;
-      thumbnail_width = size.dimensions.width;
-      thumbnail_height = size.dimensions.height;
-    }
-  }
-  if (file_id.empty()) {
-    LOG(ERROR) << "NO SIZE";
-    return {};
-  }
-  auto file_view = file_manager->get_file_view(file_id);
-  auto &encryption_key = file_view.encryption_key();
-  if (!file_view.is_encrypted_secret() || encryption_key.empty()) {
-    return {};
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr) {
-    LOG(INFO) << "Photo has remote location";
-    input_file = main_remote_location->as_input_encrypted_file();
-  }
-  if (input_file == nullptr) {
-    return {};
-  }
-  if (thumbnail_file_id.is_valid() && thumbnail.empty()) {
-    return {};
-  }
-  auto size = file_view.size();
-  if (size < 0 || size >= 1000000000) {
-    size = 0;
-  }
-
-  return SecretInputMedia{
-      std::move(input_file),
-      make_tl_object<secret_api::decryptedMessageMediaPhoto>(
-          std::move(thumbnail), thumbnail_width, thumbnail_height, width, height, static_cast<int32>(size),
-          BufferSlice(encryption_key.key_slice()), BufferSlice(encryption_key.iv_slice()), caption)};
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> photo_get_cover_input_media(FileManager *file_manager,
-                                                                               const Photo &photo, bool force,
-                                                                               bool allow_external) {
-  auto input_media = photo_get_input_media(file_manager, photo, nullptr, 0, false);
-  if (input_media == nullptr || (!allow_external && input_media->get_id() != telegram_api::inputMediaPhoto::ID)) {
-    return nullptr;
-  }
-  auto file_reference = FileManager::extract_file_reference(input_media);
-  if (file_reference == FileReferenceView::invalid_file_reference()) {
-    if (!force) {
-      LOG(INFO) << "Have invalid file reference for cover " << photo;
-      return nullptr;
-    }
-  }
-  return input_media;
-}
-
-vector<FileId> photo_get_file_ids(const Photo &photo) {
-  auto result = transform(photo.photos, [](auto &size) { return size.file_id; });
-  if (!photo.animations.empty()) {
-    // photo file IDs must be first
-    append(result, transform(photo.animations, [](auto &size) { return size.file_id; }));
-  }
-  return result;
-}
-
-FileId get_photo_any_file_id(const Photo &photo) {
-  const auto &sizes = photo.photos;
-  if (!sizes.empty()) {
-    return sizes.back().file_id;
-  }
-  return FileId();
-}
-
-FileId get_photo_thumbnail_file_id(const Photo &photo) {
-  for (auto &size : photo.photos) {
-    if (size.type == 't') {
-      return size.file_id;
-    }
-  }
-  return FileId();
-}
-
-bool operator==(const Photo &lhs, const Photo &rhs) {
-  return lhs.id.get() == rhs.id.get() && lhs.photos == rhs.photos && lhs.animations == rhs.animations &&
-         lhs.sticker_photo_size == rhs.sticker_photo_size;
-}
-
-bool operator!=(const Photo &lhs, const Photo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Photo &photo) {
-  string_builder << "[ID = " << photo.id.get() << ", date = " << photo.date << ", photos = " << photo.photos;
-  if (!photo.animations.empty()) {
-    string_builder << ", animations = " << photo.animations;
-  }
-  if (photo.sticker_photo_size != nullptr) {
-    string_builder << ", sticker = " << *photo.sticker_photo_size;
-  }
-  return string_builder << ']';
-}
-
-telegram_api::object_ptr<telegram_api::userProfilePhoto> convert_photo_to_profile_photo(
-    const telegram_api::object_ptr<telegram_api::photo> &photo, bool is_personal) {
-  if (photo == nullptr) {
-    return nullptr;
-  }
-
-  bool have_photo_small = false;
-  bool have_photo_big = false;
-  for (auto &size_ptr : photo->sizes_) {
-    switch (size_ptr->get_id()) {
-      case telegram_api::photoSizeEmpty::ID:
-        break;
-      case telegram_api::photoSize::ID: {
-        auto size = static_cast<const telegram_api::photoSize *>(size_ptr.get());
-        if (size->type_ == "a") {
-          have_photo_small = true;
-        } else if (size->type_ == "c") {
-          have_photo_big = true;
-        }
-        break;
-      }
-      case telegram_api::photoCachedSize::ID: {
-        auto size = static_cast<const telegram_api::photoCachedSize *>(size_ptr.get());
-        if (size->type_ == "a") {
-          have_photo_small = true;
-        } else if (size->type_ == "c") {
-          have_photo_big = true;
-        }
-        break;
-      }
-      case telegram_api::photoStrippedSize::ID:
-        break;
-      case telegram_api::photoSizeProgressive::ID: {
-        auto size = static_cast<const telegram_api::photoSizeProgressive *>(size_ptr.get());
-        if (size->type_ == "a") {
-          have_photo_small = true;
-        } else if (size->type_ == "c") {
-          have_photo_big = true;
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-  if (!have_photo_small || !have_photo_big) {
-    return nullptr;
-  }
-  bool has_video = !photo->video_sizes_.empty();
-  return telegram_api::make_object<telegram_api::userProfilePhoto>(0, has_video, is_personal, photo->id_, BufferSlice(),
-                                                                   photo->dc_id_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Photo.h b/third-party/td/td/td/telegram/Photo.h
deleted file mode 100644
index 1e5100975e..0000000000
--- a/third-party/td/td/td/telegram/Photo.h
+++ /dev/null
@@ -1,161 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/EncryptedFile.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/StickerPhotoSize.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/MovableValue.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/unique_value_ptr.h"
-
-namespace td {
-
-class FileManager;
-class Td;
-
-struct DialogPhoto {
-  FileId small_file_id;
-  FileId big_file_id;
-  string minithumbnail;
-  bool has_animation = false;
-  bool is_personal = false;
-};
-
-struct ProfilePhoto final : public DialogPhoto {
-  int64 id = 0;
-};
-
-struct Photo {
-  MovableValue<int64, -2> id;
-  int32 date = 0;
-  string minithumbnail;
-  vector<PhotoSize> photos;
-
-  vector<AnimationSize> animations;
-
-  unique_value_ptr<StickerPhotoSize> sticker_photo_size;
-
-  bool has_stickers = false;
-  vector<FileId> sticker_file_ids;
-
-  bool is_empty() const {
-    return id.get() == -2;
-  }
-
-  bool is_bad() const {
-    if (is_empty()) {
-      return true;
-    }
-    for (auto &photo_size : photos) {
-      if (!photo_size.file_id.is_valid()) {
-        return true;
-      }
-    }
-    return false;
-  }
-};
-
-int64 get_profile_photo_id(const tl_object_ptr<telegram_api::UserProfilePhoto> &profile_photo_ptr);
-
-ProfilePhoto get_profile_photo(FileManager *file_manager, UserId user_id, int64 user_access_hash,
-                               tl_object_ptr<telegram_api::UserProfilePhoto> &&profile_photo_ptr);
-tl_object_ptr<td_api::profilePhoto> get_profile_photo_object(FileManager *file_manager,
-                                                             const ProfilePhoto &profile_photo);
-
-bool need_update_profile_photo(const ProfilePhoto &from, const ProfilePhoto &to);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ProfilePhoto &profile_photo);
-
-DialogPhoto get_dialog_photo(FileManager *file_manager, DialogId dialog_id, int64 dialog_access_hash,
-                             telegram_api::object_ptr<telegram_api::ChatPhoto> &&chat_photo_ptr);
-
-tl_object_ptr<td_api::chatPhotoInfo> get_chat_photo_info_object(FileManager *file_manager,
-                                                                const DialogPhoto *dialog_photo);
-
-DialogPhoto as_fake_dialog_photo(const Photo &photo, DialogId dialog_id, bool is_personal);
-
-DialogPhoto as_dialog_photo(FileManager *file_manager, DialogId dialog_id, int64 dialog_access_hash, const Photo &photo,
-                            bool is_personal);
-
-ProfilePhoto as_profile_photo(FileManager *file_manager, UserId user_id, int64 user_access_hash, const Photo &photo,
-                              bool is_personal);
-
-bool is_same_dialog_photo(FileManager *file_manager, DialogId dialog_id, const Photo &photo,
-                          const DialogPhoto &dialog_photo, bool is_personal);
-
-vector<FileId> dialog_photo_get_file_ids(const DialogPhoto &dialog_photo);
-
-bool need_update_dialog_photo(const DialogPhoto &from, const DialogPhoto &to);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const DialogPhoto &dialog_photo);
-
-Photo get_photo(Td *td, tl_object_ptr<telegram_api::Photo> &&photo, DialogId owner_dialog_id,
-                FileType file_type = FileType::Photo);
-
-Photo get_photo(Td *td, tl_object_ptr<telegram_api::photo> &&photo, DialogId owner_dialog_id,
-                FileType file_type = FileType::Photo);
-
-Photo get_encrypted_file_photo(FileManager *file_manager, unique_ptr<EncryptedFile> &&file,
-                               tl_object_ptr<secret_api::decryptedMessageMediaPhoto> &&photo, DialogId owner_dialog_id);
-
-Photo get_web_document_photo(FileManager *file_manager, tl_object_ptr<telegram_api::WebDocument> web_document,
-                             DialogId owner_dialog_id);
-
-Result<Photo> create_photo(FileManager *file_manager, FileId file_id, PhotoSize &&thumbnail, int32 width, int32 height,
-                           vector<FileId> &&sticker_file_ids);
-
-Photo dup_photo(Photo photo);
-
-tl_object_ptr<td_api::photo> get_photo_object(FileManager *file_manager, const Photo &photo);
-
-tl_object_ptr<td_api::chatPhoto> get_chat_photo_object(FileManager *file_manager, const Photo &photo);
-
-void merge_photos(Td *td, const Photo *old_photo, Photo *new_photo, DialogId dialog_id, bool need_merge_files,
-                  bool &is_content_changed, bool &need_update);
-
-void photo_delete_thumbnail(Photo &photo);
-
-FileId get_photo_any_file_id(const Photo &photo);
-
-FileId get_photo_thumbnail_file_id(const Photo &photo);
-
-SecretInputMedia photo_get_secret_input_media(FileManager *file_manager, const Photo &photo,
-                                              telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                              const string &caption, BufferSlice thumbnail);
-
-tl_object_ptr<telegram_api::InputMedia> photo_get_input_media(
-    FileManager *file_manager, const Photo &photo, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    int32 ttl, bool has_spoiler);
-
-telegram_api::object_ptr<telegram_api::InputMedia> photo_get_cover_input_media(FileManager *file_manager,
-                                                                               const Photo &photo, bool force,
-                                                                               bool allow_external);
-
-vector<FileId> photo_get_file_ids(const Photo &photo);
-
-bool operator==(const Photo &lhs, const Photo &rhs);
-bool operator!=(const Photo &lhs, const Photo &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Photo &photo);
-
-telegram_api::object_ptr<telegram_api::userProfilePhoto> convert_photo_to_profile_photo(
-    const telegram_api::object_ptr<telegram_api::photo> &photo, bool is_personal);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Photo.hpp b/third-party/td/td/td/telegram/Photo.hpp
deleted file mode 100644
index 8d8722fa94..0000000000
--- a/third-party/td/td/td/telegram/Photo.hpp
+++ /dev/null
@@ -1,129 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/Photo.h"
-#include "td/telegram/PhotoSize.hpp"
-#include "td/telegram/StickerPhotoSize.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const DialogPhoto &dialog_photo, StorerT &storer) {
-  bool has_file_ids = dialog_photo.small_file_id.is_valid() || dialog_photo.big_file_id.is_valid();
-  bool has_minithumbnail = !dialog_photo.minithumbnail.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_file_ids);
-  STORE_FLAG(dialog_photo.has_animation);
-  STORE_FLAG(has_minithumbnail);
-  STORE_FLAG(dialog_photo.is_personal);
-  END_STORE_FLAGS();
-  if (has_file_ids) {
-    store(dialog_photo.small_file_id, storer);
-    store(dialog_photo.big_file_id, storer);
-  }
-  if (has_minithumbnail) {
-    store(dialog_photo.minithumbnail, storer);
-  }
-}
-
-template <class ParserT>
-void parse(DialogPhoto &dialog_photo, ParserT &parser) {
-  bool has_file_ids = true;
-  bool has_minithumbnail = false;
-  if (parser.version() >= static_cast<int32>(Version::AddDialogPhotoHasAnimation)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_file_ids);
-    PARSE_FLAG(dialog_photo.has_animation);
-    PARSE_FLAG(has_minithumbnail);
-    PARSE_FLAG(dialog_photo.is_personal);
-    END_PARSE_FLAGS();
-  }
-  if (has_file_ids) {
-    parse(dialog_photo.small_file_id, parser);
-    parse(dialog_photo.big_file_id, parser);
-  }
-  if (has_minithumbnail) {
-    parse(dialog_photo.minithumbnail, parser);
-  }
-}
-
-template <class StorerT>
-void store(const ProfilePhoto &profile_photo, StorerT &storer) {
-  store(static_cast<const DialogPhoto &>(profile_photo), storer);
-  store(profile_photo.id, storer);
-}
-
-template <class ParserT>
-void parse(ProfilePhoto &profile_photo, ParserT &parser) {
-  parse(static_cast<DialogPhoto &>(profile_photo), parser);
-  parse(profile_photo.id, parser);
-}
-
-template <class StorerT>
-void store(const Photo &photo, StorerT &storer) {
-  bool has_minithumbnail = !photo.minithumbnail.empty();
-  bool has_animations = !photo.animations.empty();
-  bool has_sticker_photo_size = photo.sticker_photo_size != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(photo.has_stickers);
-  STORE_FLAG(has_minithumbnail);
-  STORE_FLAG(has_animations);
-  STORE_FLAG(has_sticker_photo_size);
-  END_STORE_FLAGS();
-  store(photo.id.get(), storer);
-  store(photo.date, storer);
-  store(photo.photos, storer);
-  if (photo.has_stickers) {
-    store(photo.sticker_file_ids, storer);
-  }
-  if (has_minithumbnail) {
-    store(photo.minithumbnail, storer);
-  }
-  if (has_animations) {
-    store(photo.animations, storer);
-  }
-  if (has_sticker_photo_size) {
-    store(photo.sticker_photo_size, storer);
-  }
-}
-
-template <class ParserT>
-void parse(Photo &photo, ParserT &parser) {
-  bool has_minithumbnail;
-  bool has_animations;
-  bool has_sticker_photo_size;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(photo.has_stickers);
-  PARSE_FLAG(has_minithumbnail);
-  PARSE_FLAG(has_animations);
-  PARSE_FLAG(has_sticker_photo_size);
-  END_PARSE_FLAGS();
-  int64 id;
-  parse(id, parser);
-  photo.id = id;
-  parse(photo.date, parser);
-  parse(photo.photos, parser);
-  if (photo.has_stickers) {
-    parse(photo.sticker_file_ids, parser);
-  }
-  if (has_minithumbnail) {
-    parse(photo.minithumbnail, parser);
-  }
-  if (has_animations) {
-    parse(photo.animations, parser);
-  }
-  if (has_sticker_photo_size) {
-    parse(photo.sticker_photo_size, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoFormat.h b/third-party/td/td/td/telegram/PhotoFormat.h
deleted file mode 100644
index 4f3c54e62e..0000000000
--- a/third-party/td/td/td/telegram/PhotoFormat.h
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-enum class PhotoFormat : int32 { Jpeg, Png, Webp, Gif, Tgs, Mpeg4, Webm };
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoSize.cpp b/third-party/td/td/td/telegram/PhotoSize.cpp
deleted file mode 100644
index 90695074a0..0000000000
--- a/third-party/td/td/td/telegram/PhotoSize.cpp
+++ /dev/null
@@ -1,548 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PhotoSize.h"
-
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <algorithm>
-#include <cmath>
-#include <limits>
-
-namespace td {
-
-static int32 get_minithumbnail_size(const string &packed) {
-  if (packed.size() < 3) {
-    return 0;
-  }
-  if (packed[0] == '\x01') {
-    return max(static_cast<unsigned char>(packed[1]), static_cast<unsigned char>(packed[2]));
-  }
-  return 0;
-}
-
-bool need_update_dialog_photo_minithumbnail(const string &from, const string &to) {
-  if (from == to) {
-    return false;
-  }
-
-  auto from_size = get_minithumbnail_size(from);
-  auto to_size = get_minithumbnail_size(to);
-  // dialog photo minithumbnail is expected to be 8x8
-  return to_size != 0 && (to_size <= 8 || from_size > 8);
-}
-
-td_api::object_ptr<td_api::minithumbnail> get_minithumbnail_object(const string &packed) {
-  if (packed.size() < 3) {
-    return nullptr;
-  }
-  if (packed[0] == '\x01') {
-    static const string header =
-        base64_decode(
-            "/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDACgcHiMeGSgjISMtKygwPGRBPDc3PHtYXUlkkYCZlo+AjIqgtObDoKrarYqMyP/L2u71////"
-            "m8H///"
-            "/6/+b9//j/2wBDASstLTw1PHZBQXb4pYyl+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj/"
-            "wAARCAAAAAADASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/"
-            "8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0R"
-            "FRkd"
-            "ISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2"
-            "uHi4"
-            "+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/"
-            "8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkN"
-            "ERUZ"
-            "HSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2"
-            "Nna4"
-            "uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwA=")
-            .move_as_ok();
-    static const string footer = base64_decode("/9k=").move_as_ok();
-    auto result = td_api::make_object<td_api::minithumbnail>();
-    result->height_ = static_cast<unsigned char>(packed[1]);
-    result->width_ = static_cast<unsigned char>(packed[2]);
-    result->data_ = PSTRING() << header.substr(0, 164) << packed[1] << header[165] << packed[2] << header.substr(167)
-                              << packed.substr(3) << footer;
-    return result;
-  }
-  return nullptr;
-}
-
-static td_api::object_ptr<td_api::ThumbnailFormat> get_thumbnail_format_object(PhotoFormat format) {
-  switch (format) {
-    case PhotoFormat::Jpeg:
-      return td_api::make_object<td_api::thumbnailFormatJpeg>();
-    case PhotoFormat::Png:
-      return td_api::make_object<td_api::thumbnailFormatPng>();
-    case PhotoFormat::Webp:
-      return td_api::make_object<td_api::thumbnailFormatWebp>();
-    case PhotoFormat::Gif:
-      return td_api::make_object<td_api::thumbnailFormatGif>();
-    case PhotoFormat::Tgs:
-      return td_api::make_object<td_api::thumbnailFormatTgs>();
-    case PhotoFormat::Mpeg4:
-      return td_api::make_object<td_api::thumbnailFormatMpeg4>();
-    case PhotoFormat::Webm:
-      return td_api::make_object<td_api::thumbnailFormatWebm>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-static StringBuilder &operator<<(StringBuilder &string_builder, PhotoFormat format) {
-  switch (format) {
-    case PhotoFormat::Jpeg:
-      return string_builder << "jpg";
-    case PhotoFormat::Png:
-      return string_builder << "png";
-    case PhotoFormat::Webp:
-      return string_builder << "webp";
-    case PhotoFormat::Gif:
-      return string_builder << "gif";
-    case PhotoFormat::Tgs:
-      return string_builder << "tgs";
-    case PhotoFormat::Mpeg4:
-      return string_builder << "mp4";
-    case PhotoFormat::Webm:
-      return string_builder << "webm";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-FileId register_photo_size(FileManager *file_manager, const PhotoSizeSource &source, int64 id, int64 access_hash,
-                           string file_reference, DialogId owner_dialog_id, int32 file_size, DcId dc_id,
-                           PhotoFormat format, const char *call_source) {
-  LOG(DEBUG) << "Receive " << format << " photo " << id << " of type " << source.get_file_type(call_source) << " from "
-             << dc_id << " from " << call_source;
-  auto suggested_name = PSTRING() << source.get_unique_name(id, call_source) << '.' << format;
-  auto file_location_source = owner_dialog_id.get_type() == DialogType::SecretChat ? FileLocationSource::FromUser
-                                                                                   : FileLocationSource::FromServer;
-  return file_manager->register_remote(
-      FullRemoteFileLocation(source, id, access_hash, dc_id, std::move(file_reference)), file_location_source,
-      owner_dialog_id, file_size, 0, std::move(suggested_name));
-}
-
-PhotoSize get_secret_thumbnail_photo_size(FileManager *file_manager, BufferSlice bytes, DialogId owner_dialog_id,
-                                          int32 width, int32 height) {
-  if (bytes.empty()) {
-    return PhotoSize();
-  }
-  PhotoSize res;
-  res.type = PhotoSizeType('t');
-  res.dimensions = get_dimensions(width, height, nullptr);
-  res.size = narrow_cast<int32>(bytes.size());
-
-  // generate some random remote location to save
-  auto dc_id = DcId::invalid();
-  auto photo_id = -(Random::secure_int64() & std::numeric_limits<int64>::max());
-
-  res.file_id = file_manager->register_remote(
-      FullRemoteFileLocation(PhotoSizeSource::thumbnail(FileType::EncryptedThumbnail, 't'), photo_id, 0, dc_id,
-                             string()),
-      FileLocationSource::FromServer, owner_dialog_id, res.size, 0,
-      PSTRING() << static_cast<uint64>(photo_id) << ".jpg");
-  file_manager->set_content(res.file_id, std::move(bytes));
-
-  return res;
-}
-
-Variant<PhotoSize, string> get_photo_size(FileManager *file_manager, PhotoSizeSource source, int64 id,
-                                          int64 access_hash, std::string file_reference, DcId dc_id,
-                                          DialogId owner_dialog_id, tl_object_ptr<telegram_api::PhotoSize> &&size_ptr,
-                                          PhotoFormat format) {
-  CHECK(size_ptr != nullptr);
-
-  string type;
-  PhotoSize res;
-  BufferSlice content;
-  switch (size_ptr->get_id()) {
-    case telegram_api::photoSizeEmpty::ID:
-      return std::move(res);
-    case telegram_api::photoSize::ID: {
-      auto size = move_tl_object_as<telegram_api::photoSize>(size_ptr);
-
-      type = std::move(size->type_);
-      res.dimensions = get_dimensions(size->w_, size->h_, "photoSize");
-      res.size = size->size_;
-
-      break;
-    }
-    case telegram_api::photoCachedSize::ID: {
-      auto size = move_tl_object_as<telegram_api::photoCachedSize>(size_ptr);
-
-      type = std::move(size->type_);
-      CHECK(size->bytes_.size() <= static_cast<size_t>(std::numeric_limits<int32>::max()));
-      res.dimensions = get_dimensions(size->w_, size->h_, "photoCachedSize");
-      res.size = static_cast<int32>(size->bytes_.size());
-
-      content = std::move(size->bytes_);
-
-      break;
-    }
-    case telegram_api::photoStrippedSize::ID: {
-      auto size = move_tl_object_as<telegram_api::photoStrippedSize>(size_ptr);
-      if (format != PhotoFormat::Jpeg) {
-        LOG(ERROR) << "Receive unexpected JPEG minithumbnail in photo " << id << " from " << source << " of format "
-                   << format;
-        return std::move(res);
-      }
-      return size->bytes_.as_slice().str();
-    }
-    case telegram_api::photoSizeProgressive::ID: {
-      auto size = move_tl_object_as<telegram_api::photoSizeProgressive>(size_ptr);
-
-      if (size->sizes_.empty()) {
-        LOG(ERROR) << "Receive photo " << id << " from " << source << " with empty size " << to_string(size);
-        return std::move(res);
-      }
-      std::sort(size->sizes_.begin(), size->sizes_.end());
-
-      type = std::move(size->type_);
-      res.dimensions = get_dimensions(size->w_, size->h_, "photoSizeProgressive");
-      res.size = size->sizes_.back();
-      size->sizes_.pop_back();
-      res.progressive_sizes = std::move(size->sizes_);
-
-      break;
-    }
-    case telegram_api::photoPathSize::ID: {
-      auto size = move_tl_object_as<telegram_api::photoPathSize>(size_ptr);
-      if (format != PhotoFormat::Tgs && format != PhotoFormat::Webp && format != PhotoFormat::Webm) {
-        LOG(ERROR) << "Receive unexpected SVG minithumbnail in photo " << id << " from " << source << " of format "
-                   << format;
-        return std::move(res);
-      }
-      return size->bytes_.as_slice().str();
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  if (type.size() != 1) {
-    LOG(ERROR) << "Wrong photoSize \"" << type << "\" " << res;
-    res.type = PhotoSizeType();
-  } else {
-    auto int_type = static_cast<uint8>(type[0]);
-    if (int_type >= 128) {
-      LOG(ERROR) << "Wrong photoSize \"" << int_type << "\" " << res;
-      int_type = 0;
-    }
-    res.type = PhotoSizeType(int_type);
-  }
-  if (format == PhotoFormat::Tgs) {
-    if (res.type == 's') {
-      format = PhotoFormat::Webp;
-    } else if (res.type == 'v') {
-      format = PhotoFormat::Webm;
-    } else if (res.type != 'a') {
-      LOG(ERROR) << "Receive sticker set thumbnail of type " << res.type;
-      format = PhotoFormat::Webp;
-    }
-  }
-  if (source.get_type("get_photo_size") == PhotoSizeSource::Type::Thumbnail) {
-    source.thumbnail().thumbnail_type = res.type;
-  }
-  if (res.size < 0 || res.size > 1000000000) {
-    LOG(ERROR) << "Receive photo of size " << res.size;
-    res.size = 0;
-  }
-
-  res.file_id = register_photo_size(file_manager, source, id, access_hash, std::move(file_reference), owner_dialog_id,
-                                    res.size, dc_id, format, "get_photo_size");
-
-  if (!content.empty()) {
-    file_manager->set_content(res.file_id, std::move(content));
-  }
-
-  return std::move(res);
-}
-
-AnimationSize get_animation_size(Td *td, PhotoSizeSource source, int64 id, int64 access_hash,
-                                 std::string file_reference, DcId dc_id, DialogId owner_dialog_id,
-                                 tl_object_ptr<telegram_api::videoSize> &&size) {
-  CHECK(size != nullptr);
-  AnimationSize result;
-  if (size->type_ != "p" && size->type_ != "u" && size->type_ != "v") {
-    LOG(ERROR) << "Unsupported videoSize \"" << size->type_ << "\" in " << to_string(size);
-  }
-  auto type = static_cast<uint8>(size->type_[0]);
-  if (type >= 128) {
-    LOG(ERROR) << "Wrong videoSize \"" << type << "\" " << to_string(size);
-    type = 0;
-  }
-  result.type = PhotoSizeType(type);
-  result.dimensions = get_dimensions(size->w_, size->h_, "get_animation_size");
-  result.size = size->size_;
-  if ((size->flags_ & telegram_api::videoSize::VIDEO_START_TS_MASK) != 0) {
-    result.main_frame_timestamp = size->video_start_ts_;
-  }
-
-  if (source.get_type("get_animation_size") == PhotoSizeSource::Type::Thumbnail) {
-    source.thumbnail().thumbnail_type = result.type;
-  }
-  if (result.size < 0 || result.size > 1000000000) {
-    LOG(ERROR) << "Receive animation of size " << result.size;
-    result.size = 0;
-  }
-
-  result.file_id = register_photo_size(td->file_manager_.get(), source, id, access_hash, std::move(file_reference),
-                                       owner_dialog_id, result.size, dc_id, PhotoFormat::Mpeg4, "get_animation_size");
-  return result;
-}
-
-Variant<AnimationSize, unique_ptr<StickerPhotoSize>> process_video_size(
-    Td *td, PhotoSizeSource source, int64 id, int64 access_hash, std::string file_reference, DcId dc_id,
-    DialogId owner_dialog_id, tl_object_ptr<telegram_api::VideoSize> &&size_ptr) {
-  CHECK(size_ptr != nullptr);
-  switch (size_ptr->get_id()) {
-    case telegram_api::videoSize::ID: {
-      auto animation_size = get_animation_size(td, source, id, access_hash, std::move(file_reference), dc_id,
-                                               owner_dialog_id, move_tl_object_as<telegram_api::videoSize>(size_ptr));
-      if (animation_size.type == 0) {
-        return {};
-      }
-      return std::move(animation_size);
-    }
-    case telegram_api::videoSizeEmojiMarkup::ID:
-    case telegram_api::videoSizeStickerMarkup::ID: {
-      auto sticker_photo_size = StickerPhotoSize::get_sticker_photo_size(td, std::move(size_ptr));
-      if (sticker_photo_size == nullptr) {
-        return {};
-      }
-      return std::move(sticker_photo_size);
-    }
-    default:
-      UNREACHABLE();
-      return {};
-  }
-}
-
-PhotoSize get_web_document_photo_size(FileManager *file_manager, FileType file_type, DialogId owner_dialog_id,
-                                      tl_object_ptr<telegram_api::WebDocument> web_document_ptr) {
-  if (web_document_ptr == nullptr) {
-    return {};
-  }
-
-  FileId file_id;
-  vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-  int32 size = 0;
-  string mime_type;
-  switch (web_document_ptr->get_id()) {
-    case telegram_api::webDocument::ID: {
-      auto web_document = move_tl_object_as<telegram_api::webDocument>(web_document_ptr);
-      auto r_http_url = parse_url(web_document->url_);
-      if (r_http_url.is_error()) {
-        LOG(ERROR) << "Can't parse URL " << web_document->url_;
-        return {};
-      }
-      auto http_url = r_http_url.move_as_ok();
-      auto url = http_url.get_url();
-      file_id = file_manager->register_remote(
-          FullRemoteFileLocation(file_type, url, web_document->access_hash_), FileLocationSource::FromServer,
-          owner_dialog_id, 0, static_cast<uint32>(web_document->size_), get_url_query_file_name(http_url.query_));
-      size = web_document->size_;
-      mime_type = std::move(web_document->mime_type_);
-      attributes = std::move(web_document->attributes_);
-      break;
-    }
-    case telegram_api::webDocumentNoProxy::ID: {
-      auto web_document = move_tl_object_as<telegram_api::webDocumentNoProxy>(web_document_ptr);
-      if (web_document->url_.find('.') == string::npos) {
-        LOG(ERROR) << "Receive invalid URL " << web_document->url_;
-        return {};
-      }
-
-      auto r_file_id = file_manager->from_persistent_id(web_document->url_, file_type);
-      if (r_file_id.is_error()) {
-        LOG(ERROR) << "Can't register URL: " << r_file_id.error();
-        return {};
-      }
-      file_id = r_file_id.move_as_ok();
-
-      size = web_document->size_;
-      mime_type = std::move(web_document->mime_type_);
-      attributes = std::move(web_document->attributes_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  CHECK(file_id.is_valid());
-  bool is_animation = mime_type == "video/mp4";
-  bool is_gif = mime_type == "image/gif";
-
-  Dimensions dimensions;
-  for (auto &attribute : attributes) {
-    switch (attribute->get_id()) {
-      case telegram_api::documentAttributeImageSize::ID: {
-        auto image_size = telegram_api::move_object_as<telegram_api::documentAttributeImageSize>(attribute);
-        dimensions = get_dimensions(image_size->w_, image_size->h_, "web documentAttributeImageSize");
-        break;
-      }
-      case telegram_api::documentAttributeAnimated::ID:
-      case telegram_api::documentAttributeHasStickers::ID:
-      case telegram_api::documentAttributeSticker::ID:
-      case telegram_api::documentAttributeVideo::ID:
-      case telegram_api::documentAttributeAudio::ID:
-      case telegram_api::documentAttributeCustomEmoji::ID:
-        LOG(ERROR) << "Unexpected web document attribute " << to_string(attribute);
-        break;
-      case telegram_api::documentAttributeFilename::ID:
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  PhotoSize s;
-  s.type = PhotoSizeType(is_animation ? 'v' : (is_gif ? 'g' : (file_type == FileType::Thumbnail ? 't' : 'n')));
-  s.dimensions = dimensions;
-  s.size = size;
-  s.file_id = file_id;
-
-  if (s.size < 0 || s.size > 1000000000) {
-    LOG(ERROR) << "Receive web photo of size " << s.size;
-    s.size = 0;
-  }
-  return s;
-}
-
-Result<PhotoSize> get_input_photo_size(FileManager *file_manager, FileId file_id, int32 width, int32 height) {
-  if (width < 0 || width > 10000) {
-    return Status::Error(400, "Width of the photo is too big");
-  }
-  if (height < 0 || height > 10000) {
-    return Status::Error(400, "Height of the photo is too big");
-  }
-  if (width + height > 10000) {
-    return Status::Error(400, "Dimensions of the photo are too big");
-  }
-
-  auto file_view = file_manager->get_file_view(file_id);
-  auto file_size = file_view.size();
-  if (file_size < 0 || file_size >= 1000000000) {
-    return Status::Error(400, "Size of the photo is too big");
-  }
-
-  auto type = PhotoSizeType('i');
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location != nullptr && !full_remote_location->is_web()) {
-    auto photo_size_source = full_remote_location->get_source();
-    if (photo_size_source.get_type("get_input_photo_size") == PhotoSizeSource::Type::Thumbnail) {
-      auto old_type = photo_size_source.thumbnail().thumbnail_type;
-      if (old_type != 't') {
-        type = old_type;
-      }
-    }
-  }
-
-  PhotoSize result;
-  result.type = type;
-  result.dimensions = get_dimensions(width, height, nullptr);
-  result.size = static_cast<int32>(file_size);
-  result.file_id = file_id;
-  return std::move(result);
-}
-
-PhotoSize get_input_thumbnail_photo_size(FileManager *file_manager, const td_api::inputThumbnail *input_thumbnail,
-                                         DialogId dialog_id, bool is_secret) {
-  PhotoSize thumbnail;
-  if (input_thumbnail != nullptr) {
-    auto r_thumbnail_file_id =
-        file_manager->get_input_thumbnail_file_id(input_thumbnail->thumbnail_, dialog_id, is_secret);
-    if (r_thumbnail_file_id.is_error()) {
-      LOG(WARNING) << "Ignore thumbnail file: " << r_thumbnail_file_id.error().message();
-    } else {
-      thumbnail.type = PhotoSizeType('t');
-      thumbnail.dimensions = get_dimensions(input_thumbnail->width_, input_thumbnail->height_, nullptr);
-      thumbnail.file_id = r_thumbnail_file_id.ok();
-      CHECK(thumbnail.file_id.is_valid());
-
-      FileView thumbnail_file_view = file_manager->get_file_view(thumbnail.file_id);
-      if (thumbnail_file_view.has_full_remote_location()) {
-        // TODO file_manager->delete_remote_location(thumbnail.file_id);
-      }
-    }
-  }
-  return thumbnail;
-}
-
-td_api::object_ptr<td_api::thumbnail> get_thumbnail_object(FileManager *file_manager, const PhotoSize &photo_size,
-                                                           PhotoFormat format) {
-  if (!photo_size.file_id.is_valid()) {
-    return nullptr;
-  }
-
-  if (format == PhotoFormat::Jpeg && photo_size.type == 'g') {
-    format = PhotoFormat::Gif;
-  }
-
-  return td_api::make_object<td_api::thumbnail>(get_thumbnail_format_object(format), photo_size.dimensions.width,
-                                                photo_size.dimensions.height,
-                                                file_manager->get_file_object(photo_size.file_id));
-}
-
-bool operator==(const PhotoSize &lhs, const PhotoSize &rhs) {
-  return lhs.type == rhs.type && lhs.dimensions == rhs.dimensions && lhs.size == rhs.size &&
-         lhs.file_id == rhs.file_id && lhs.progressive_sizes == rhs.progressive_sizes;
-}
-
-bool operator!=(const PhotoSize &lhs, const PhotoSize &rhs) {
-  return !(lhs == rhs);
-}
-
-bool operator<(const PhotoSize &lhs, const PhotoSize &rhs) {
-  if (lhs.size != rhs.size) {
-    return lhs.size < rhs.size;
-  }
-  auto lhs_pixels = get_dimensions_pixel_count(lhs.dimensions);
-  auto rhs_pixels = get_dimensions_pixel_count(rhs.dimensions);
-  if (lhs_pixels != rhs_pixels) {
-    return lhs_pixels < rhs_pixels;
-  }
-  int32 lhs_type = lhs.type == 't' ? -1 : lhs.type.type;
-  int32 rhs_type = rhs.type == 't' ? -1 : rhs.type.type;
-  if (lhs_type != rhs_type) {
-    return lhs_type < rhs_type;
-  }
-  if (lhs.file_id != rhs.file_id) {
-    return lhs.file_id.get() < rhs.file_id.get();
-  }
-  return lhs.dimensions.width < rhs.dimensions.width;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const PhotoSize &photo_size) {
-  return string_builder << "{type = " << photo_size.type << ", dimensions = " << photo_size.dimensions
-                        << ", size = " << photo_size.size << ", file_id = " << photo_size.file_id
-                        << ", progressive_sizes = " << photo_size.progressive_sizes << "}";
-}
-
-bool operator==(const AnimationSize &lhs, const AnimationSize &rhs) {
-  return static_cast<const PhotoSize &>(lhs) == static_cast<const PhotoSize &>(rhs) &&
-         fabs(lhs.main_frame_timestamp - rhs.main_frame_timestamp) < 1e-3;
-}
-
-bool operator!=(const AnimationSize &lhs, const AnimationSize &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const AnimationSize &animation_size) {
-  return string_builder << static_cast<const PhotoSize &>(animation_size) << " from "
-                        << animation_size.main_frame_timestamp;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoSize.h b/third-party/td/td/td/telegram/PhotoSize.h
deleted file mode 100644
index 016ce87e66..0000000000
--- a/third-party/td/td/td/telegram/PhotoSize.h
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/PhotoSizeType.h"
-#include "td/telegram/StickerPhotoSize.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Variant.h"
-
-namespace td {
-
-class FileManager;
-class Td;
-
-struct PhotoSize {
-  PhotoSizeType type;
-  int32 size = 0;
-  Dimensions dimensions;
-  FileId file_id;
-  vector<int32> progressive_sizes;
-};
-
-struct AnimationSize final : public PhotoSize {
-  double main_frame_timestamp = 0.0;
-};
-
-bool need_update_dialog_photo_minithumbnail(const string &from, const string &to);
-
-td_api::object_ptr<td_api::minithumbnail> get_minithumbnail_object(const string &packed);
-
-FileId register_photo_size(FileManager *file_manager, const PhotoSizeSource &source, int64 id, int64 access_hash,
-                           string file_reference, DialogId owner_dialog_id, int32 file_size, DcId dc_id,
-                           PhotoFormat format, const char *call_source);
-
-PhotoSize get_secret_thumbnail_photo_size(FileManager *file_manager, BufferSlice bytes, DialogId owner_dialog_id,
-                                          int32 width, int32 height);
-
-Variant<PhotoSize, string> get_photo_size(FileManager *file_manager, PhotoSizeSource source, int64 id,
-                                          int64 access_hash, string file_reference, DcId dc_id,
-                                          DialogId owner_dialog_id, tl_object_ptr<telegram_api::PhotoSize> &&size_ptr,
-                                          PhotoFormat format);
-
-AnimationSize get_animation_size(Td *td, PhotoSizeSource source, int64 id, int64 access_hash, string file_reference,
-                                 DcId dc_id, DialogId owner_dialog_id, tl_object_ptr<telegram_api::videoSize> &&size);
-
-Variant<AnimationSize, unique_ptr<StickerPhotoSize>> process_video_size(
-    Td *td, PhotoSizeSource source, int64 id, int64 access_hash, string file_reference, DcId dc_id,
-    DialogId owner_dialog_id, tl_object_ptr<telegram_api::VideoSize> &&size_ptr);
-
-PhotoSize get_web_document_photo_size(FileManager *file_manager, FileType file_type, DialogId owner_dialog_id,
-                                      tl_object_ptr<telegram_api::WebDocument> web_document_ptr);
-
-Result<PhotoSize> get_input_photo_size(FileManager *file_manager, FileId file_id, int32 width, int32 height);
-
-PhotoSize get_input_thumbnail_photo_size(FileManager *file_manager, const td_api::inputThumbnail *input_thumbnail,
-                                         DialogId dialog_id, bool is_secret);
-
-td_api::object_ptr<td_api::thumbnail> get_thumbnail_object(FileManager *file_manager, const PhotoSize &photo_size,
-                                                           PhotoFormat format);
-
-bool operator==(const PhotoSize &lhs, const PhotoSize &rhs);
-bool operator!=(const PhotoSize &lhs, const PhotoSize &rhs);
-
-bool operator<(const PhotoSize &lhs, const PhotoSize &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const PhotoSize &photo_size);
-
-bool operator==(const AnimationSize &lhs, const AnimationSize &rhs);
-bool operator!=(const AnimationSize &lhs, const AnimationSize &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const AnimationSize &animation_size);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoSize.hpp b/third-party/td/td/td/telegram/PhotoSize.hpp
deleted file mode 100644
index d059ff3bee..0000000000
--- a/third-party/td/td/td/telegram/PhotoSize.hpp
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Dimensions.hpp"
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/PhotoSizeType.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const PhotoSize &photo_size, StorerT &storer) {
-  store(photo_size.type, storer);
-  store(photo_size.dimensions, storer);
-  store(photo_size.size, storer);
-  store(photo_size.file_id, storer);
-  store(photo_size.progressive_sizes, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSize &photo_size, ParserT &parser) {
-  parse(photo_size.type, parser);
-  parse(photo_size.dimensions, parser);
-  parse(photo_size.size, parser);
-  parse(photo_size.file_id, parser);
-  if (parser.version() >= static_cast<int32>(Version::AddPhotoProgressiveSizes)) {
-    parse(photo_size.progressive_sizes, parser);
-  } else {
-    photo_size.progressive_sizes.clear();
-  }
-}
-
-template <class StorerT>
-void store(const AnimationSize &animation_size, StorerT &storer) {
-  store(static_cast<const PhotoSize &>(animation_size), storer);
-  store(animation_size.main_frame_timestamp, storer);
-}
-
-template <class ParserT>
-void parse(AnimationSize &animation_size, ParserT &parser) {
-  parse(static_cast<PhotoSize &>(animation_size), parser);
-  if (parser.version() >= static_cast<int32>(Version::AddDialogPhotoHasAnimation)) {
-    parse(animation_size.main_frame_timestamp, parser);
-  } else {
-    animation_size.main_frame_timestamp = 0;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoSizeSource.cpp b/third-party/td/td/td/telegram/PhotoSizeSource.cpp
deleted file mode 100644
index ce0b84fc45..0000000000
--- a/third-party/td/td/td/telegram/PhotoSizeSource.cpp
+++ /dev/null
@@ -1,317 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PhotoSizeSource.h"
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_storers.h"
-
-namespace td {
-
-tl_object_ptr<telegram_api::InputPeer> PhotoSizeSource::DialogPhoto::get_input_peer() const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      UserId user_id = dialog_id.get_user_id();
-      return make_tl_object<telegram_api::inputPeerUser>(user_id.get(), dialog_access_hash);
-    }
-    case DialogType::Chat: {
-      ChatId chat_id = dialog_id.get_chat_id();
-      return make_tl_object<telegram_api::inputPeerChat>(chat_id.get());
-    }
-    case DialogType::Channel: {
-      ChannelId channel_id = dialog_id.get_channel_id();
-      return make_tl_object<telegram_api::inputPeerChannel>(channel_id.get(), dialog_access_hash);
-    }
-    case DialogType::SecretChat:
-      return nullptr;
-    case DialogType::None:
-      return make_tl_object<telegram_api::inputPeerEmpty>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-FileType PhotoSizeSource::get_file_type(const char *source) const {
-  switch (get_type(source)) {
-    case Type::Thumbnail:
-      return thumbnail().file_type;
-    case Type::DialogPhotoSmall:
-    case Type::DialogPhotoBig:
-    case Type::DialogPhotoSmallLegacy:
-    case Type::DialogPhotoBigLegacy:
-      return FileType::ProfilePhoto;
-    case Type::StickerSetThumbnail:
-    case Type::StickerSetThumbnailLegacy:
-    case Type::StickerSetThumbnailVersion:
-      return FileType::Thumbnail;
-    case Type::Legacy:
-    case Type::FullLegacy:
-    default:
-      UNREACHABLE();
-      return FileType::Thumbnail;
-  }
-}
-
-string PhotoSizeSource::get_unique(const char *source) const {
-  auto compare_type = get_compare_type(source);
-  if (compare_type != 2 && compare_type != 3) {
-    return string(1, static_cast<char>(compare_type));
-  }
-
-  auto ptr = StackAllocator::alloc(16);
-  MutableSlice data = ptr.as_slice();
-  TlStorerUnsafe storer(data.ubegin());
-  if (compare_type == 2) {
-    storer.store_slice(Slice("\x02"));
-  }
-  td::store(get_compare_volume_id(), storer);
-  td::store(get_compare_local_id(), storer);
-  auto size = storer.get_buf() - data.ubegin();
-  CHECK(size <= 13);
-  return string(data.begin(), size);
-}
-
-int32 PhotoSizeSource::get_compare_type(const char *source) const {
-  switch (get_type(source)) {
-    case Type::Legacy:
-      break;
-    case Type::Thumbnail: {
-      auto type = thumbnail().thumbnail_type.type;
-      CHECK(0 <= type && type <= 127);
-      if (type == 'a') {
-        return 0;
-      }
-      if (type == 'c') {
-        return 1;
-      }
-      return type + 5;
-    }
-    case Type::DialogPhotoSmall:
-      return 0;
-    case Type::DialogPhotoBig:
-      return 1;
-    case Type::StickerSetThumbnail:
-      break;
-    case Type::FullLegacy:
-    case Type::DialogPhotoSmallLegacy:
-    case Type::DialogPhotoBigLegacy:
-    case Type::StickerSetThumbnailLegacy:
-      return 3;
-    case Type::StickerSetThumbnailVersion:
-      return 2;
-    default:
-      break;
-  }
-  UNREACHABLE();
-  return -1;
-}
-
-int64 PhotoSizeSource::get_compare_volume_id() const {
-  switch (get_type("get_compare_volume_id")) {
-    case Type::FullLegacy:
-      return full_legacy().volume_id;
-    case Type::DialogPhotoSmallLegacy:
-    case Type::DialogPhotoBigLegacy:
-      return dialog_photo_legacy().volume_id;
-    case Type::StickerSetThumbnailLegacy:
-      return sticker_set_thumbnail_legacy().volume_id;
-    case Type::StickerSetThumbnailVersion:
-      return sticker_set_thumbnail_version().sticker_set_id;
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-int32 PhotoSizeSource::get_compare_local_id() const {
-  switch (get_type("get_compare_volume_id")) {
-    case Type::FullLegacy:
-      return full_legacy().local_id;
-    case Type::DialogPhotoSmallLegacy:
-    case Type::DialogPhotoBigLegacy:
-      return dialog_photo_legacy().local_id;
-    case Type::StickerSetThumbnailLegacy:
-      return sticker_set_thumbnail_legacy().local_id;
-    case Type::StickerSetThumbnailVersion:
-      return sticker_set_thumbnail_version().version;
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-bool PhotoSizeSource::unique_less(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
-  auto lhs_compare_type = lhs.get_compare_type("unique_less");
-  auto rhs_compare_type = rhs.get_compare_type("unique_less");
-  if (lhs_compare_type != rhs_compare_type) {
-    return lhs_compare_type < rhs_compare_type;
-  }
-  if (lhs_compare_type != 2 && lhs_compare_type != 3) {
-    return false;
-  }
-  auto lhs_volume_id = lhs.get_compare_volume_id();
-  auto rhs_volume_id = rhs.get_compare_volume_id();
-  if (lhs_volume_id != rhs_volume_id) {
-    return lhs_volume_id < rhs_volume_id;
-  }
-  return lhs.get_compare_local_id() < rhs.get_compare_local_id();
-}
-
-bool PhotoSizeSource::unique_equal(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
-  auto lhs_compare_type = lhs.get_compare_type("unique_equal");
-  auto rhs_compare_type = rhs.get_compare_type("unique_equal");
-  if (lhs_compare_type != rhs_compare_type) {
-    return false;
-  }
-  if (lhs_compare_type != 2 && lhs_compare_type != 3) {
-    return true;
-  }
-  return lhs.get_compare_volume_id() == rhs.get_compare_volume_id() &&
-         lhs.get_compare_local_id() == rhs.get_compare_local_id();
-}
-
-string PhotoSizeSource::get_unique_name(int64 photo_id, const char *source) const {
-  switch (get_type(source)) {
-    case Type::Thumbnail: {
-      int32 type = thumbnail().thumbnail_type.type;
-      CHECK(0 <= type && type <= 127);
-      return PSTRING() << photo_id << '_' << type;
-    }
-    case Type::DialogPhotoSmall:
-      return to_string(photo_id);
-    case Type::DialogPhotoBig:
-      return PSTRING() << photo_id << '_' << 1;
-    case Type::StickerSetThumbnailVersion:
-      return PSTRING() << sticker_set_thumbnail_version().sticker_set_id << '_'
-                       << static_cast<uint32>(sticker_set_thumbnail_version().version);
-    case Type::Legacy:
-    case Type::StickerSetThumbnail:
-    case Type::FullLegacy:
-    case Type::DialogPhotoSmallLegacy:
-    case Type::DialogPhotoBigLegacy:
-    case Type::StickerSetThumbnailLegacy:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return string();
-}
-
-static bool operator==(const PhotoSizeSource::Legacy &lhs, const PhotoSizeSource::Legacy &rhs) {
-  UNREACHABLE();
-  return false;
-}
-
-static bool operator==(const PhotoSizeSource::Thumbnail &lhs, const PhotoSizeSource::Thumbnail &rhs) {
-  return lhs.file_type == rhs.file_type && lhs.thumbnail_type == rhs.thumbnail_type;
-}
-
-static bool operator==(const PhotoSizeSource::DialogPhoto &lhs, const PhotoSizeSource::DialogPhoto &rhs) {
-  return lhs.dialog_id == rhs.dialog_id && lhs.dialog_access_hash == rhs.dialog_access_hash;
-}
-
-static bool operator==(const PhotoSizeSource::DialogPhotoSmall &lhs, const PhotoSizeSource::DialogPhotoSmall &rhs) {
-  return static_cast<const PhotoSizeSource::DialogPhoto &>(lhs) ==
-         static_cast<const PhotoSizeSource::DialogPhoto &>(rhs);
-}
-
-static bool operator==(const PhotoSizeSource::DialogPhotoBig &lhs, const PhotoSizeSource::DialogPhotoBig &rhs) {
-  return static_cast<const PhotoSizeSource::DialogPhoto &>(lhs) ==
-         static_cast<const PhotoSizeSource::DialogPhoto &>(rhs);
-}
-
-static bool operator==(const PhotoSizeSource::StickerSetThumbnail &lhs,
-                       const PhotoSizeSource::StickerSetThumbnail &rhs) {
-  return lhs.sticker_set_id == rhs.sticker_set_id && lhs.sticker_set_access_hash == rhs.sticker_set_access_hash;
-}
-
-static bool operator==(const PhotoSizeSource::FullLegacy &lhs, const PhotoSizeSource::FullLegacy &rhs) {
-  return lhs.volume_id == rhs.volume_id && lhs.local_id == rhs.local_id && lhs.secret == rhs.secret;
-}
-
-static bool operator==(const PhotoSizeSource::DialogPhotoLegacy &lhs, const PhotoSizeSource::DialogPhotoLegacy &rhs) {
-  return static_cast<const PhotoSizeSource::DialogPhoto &>(lhs) ==
-             static_cast<const PhotoSizeSource::DialogPhoto &>(rhs) &&
-         lhs.volume_id == rhs.volume_id && lhs.local_id == rhs.local_id;
-}
-
-static bool operator==(const PhotoSizeSource::DialogPhotoSmallLegacy &lhs,
-                       const PhotoSizeSource::DialogPhotoSmallLegacy &rhs) {
-  return static_cast<const PhotoSizeSource::DialogPhotoLegacy &>(lhs) ==
-         static_cast<const PhotoSizeSource::DialogPhotoLegacy &>(rhs);
-}
-
-static bool operator==(const PhotoSizeSource::DialogPhotoBigLegacy &lhs,
-                       const PhotoSizeSource::DialogPhotoBigLegacy &rhs) {
-  return static_cast<const PhotoSizeSource::DialogPhotoLegacy &>(lhs) ==
-         static_cast<const PhotoSizeSource::DialogPhotoLegacy &>(rhs);
-}
-
-static bool operator==(const PhotoSizeSource::StickerSetThumbnailLegacy &lhs,
-                       const PhotoSizeSource::StickerSetThumbnailLegacy &rhs) {
-  return static_cast<const PhotoSizeSource::StickerSetThumbnail &>(lhs) ==
-             static_cast<const PhotoSizeSource::StickerSetThumbnail &>(rhs) &&
-         lhs.volume_id == rhs.volume_id && lhs.local_id == rhs.local_id;
-}
-
-static bool operator==(const PhotoSizeSource::StickerSetThumbnailVersion &lhs,
-                       const PhotoSizeSource::StickerSetThumbnailVersion &rhs) {
-  return static_cast<const PhotoSizeSource::StickerSetThumbnail &>(lhs) ==
-             static_cast<const PhotoSizeSource::StickerSetThumbnail &>(rhs) &&
-         lhs.version == rhs.version;
-}
-
-bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
-  return lhs.variant_ == rhs.variant_;
-}
-
-bool operator!=(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const PhotoSizeSource &source) {
-  switch (source.get_type("operator<<")) {
-    case PhotoSizeSource::Type::Legacy:
-      return string_builder << "PhotoSizeSourceLegacy[]";
-    case PhotoSizeSource::Type::Thumbnail:
-      return string_builder << "PhotoSizeSourceThumbnail[" << source.thumbnail().file_type
-                            << ", type = " << source.thumbnail().thumbnail_type << ']';
-    case PhotoSizeSource::Type::DialogPhotoSmall:
-      return string_builder << "PhotoSizeSourceChatPhotoSmall[]";
-    case PhotoSizeSource::Type::DialogPhotoBig:
-      return string_builder << "PhotoSizeSourceChatPhotoBig[]";
-    case PhotoSizeSource::Type::StickerSetThumbnail:
-      return string_builder << "PhotoSizeSourceStickerSetThumbnail[" << source.sticker_set_thumbnail().sticker_set_id
-                            << ']';
-    case PhotoSizeSource::Type::FullLegacy:
-      return string_builder << "PhotoSizeSourceFullLegacy[]";
-    case PhotoSizeSource::Type::DialogPhotoSmallLegacy:
-      return string_builder << "PhotoSizeSourceChatPhotoSmallLegacy[]";
-    case PhotoSizeSource::Type::DialogPhotoBigLegacy:
-      return string_builder << "PhotoSizeSourceChatPhotoBigLegacy[]";
-    case PhotoSizeSource::Type::StickerSetThumbnailLegacy:
-      return string_builder << "PhotoSizeSourceStickerSetThumbnailLegacy["
-                            << source.sticker_set_thumbnail().sticker_set_id << ']';
-    case PhotoSizeSource::Type::StickerSetThumbnailVersion:
-      return string_builder << "PhotoSizeSourceStickerSetThumbnailVersion["
-                            << source.sticker_set_thumbnail().sticker_set_id << '_'
-                            << source.sticker_set_thumbnail_version().version << ']';
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoSizeSource.h b/third-party/td/td/td/telegram/PhotoSizeSource.h
deleted file mode 100644
index 1e04996f75..0000000000
--- a/third-party/td/td/td/telegram/PhotoSizeSource.h
+++ /dev/null
@@ -1,279 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/PhotoSizeType.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Variant.h"
-
-namespace td {
-
-struct PhotoSizeSource {
-  enum class Type : int32 {
-    Legacy,
-    Thumbnail,
-    DialogPhotoSmall,
-    DialogPhotoBig,
-    StickerSetThumbnail,
-    FullLegacy,
-    DialogPhotoSmallLegacy,
-    DialogPhotoBigLegacy,
-    StickerSetThumbnailLegacy,
-    StickerSetThumbnailVersion
-  };
-
-  // for legacy photos with secret
-  struct Legacy {
-    Legacy() = default;
-    explicit Legacy(int64 secret) : secret(secret) {
-    }
-
-    int64 secret = 0;
-  };
-
-  // for photos, document thumbnails, encrypted thumbnails
-  struct Thumbnail {
-    Thumbnail() = default;
-    Thumbnail(FileType file_type, int32 thumbnail_type) : file_type(file_type), thumbnail_type(thumbnail_type) {
-    }
-
-    FileType file_type = FileType::None;
-    PhotoSizeType thumbnail_type;
-  };
-
-  // for dialog photos
-  struct DialogPhoto {
-    DialogPhoto() = default;
-    DialogPhoto(DialogId dialog_id, int64 dialog_access_hash)
-        : dialog_id(dialog_id), dialog_access_hash(dialog_access_hash) {
-    }
-
-    tl_object_ptr<telegram_api::InputPeer> get_input_peer() const;
-
-    DialogId dialog_id;
-    int64 dialog_access_hash = 0;
-  };
-
-  struct DialogPhotoSmall final : public DialogPhoto {
-    using DialogPhoto::DialogPhoto;
-  };
-
-  struct DialogPhotoBig final : public DialogPhoto {
-    using DialogPhoto::DialogPhoto;
-  };
-
-  // for sticker set thumbnails
-  struct StickerSetThumbnail {
-    int64 sticker_set_id = 0;
-    int64 sticker_set_access_hash = 0;
-
-    StickerSetThumbnail() = default;
-    StickerSetThumbnail(int64 sticker_set_id, int64 sticker_set_access_hash)
-        : sticker_set_id(sticker_set_id), sticker_set_access_hash(sticker_set_access_hash) {
-    }
-
-    tl_object_ptr<telegram_api::InputStickerSet> get_input_sticker_set() const {
-      return make_tl_object<telegram_api::inputStickerSetID>(sticker_set_id, sticker_set_access_hash);
-    }
-  };
-
-  // for legacy photos with volume_id, local_id, secret
-  struct FullLegacy {
-    FullLegacy() = default;
-    FullLegacy(int64 volume_id, int32 local_id, int64 secret)
-        : volume_id(volume_id), local_id(local_id), secret(secret) {
-    }
-
-    int64 volume_id = 0;
-    int32 local_id = 0;
-    int64 secret = 0;
-  };
-
-  // for legacy dialog photos
-  struct DialogPhotoLegacy : public DialogPhoto {
-    DialogPhotoLegacy() = default;
-    DialogPhotoLegacy(DialogId dialog_id, int64 dialog_access_hash, int64 volume_id, int32 local_id)
-        : DialogPhoto(dialog_id, dialog_access_hash), volume_id(volume_id), local_id(local_id) {
-    }
-
-    int64 volume_id = 0;
-    int32 local_id = 0;
-  };
-
-  struct DialogPhotoSmallLegacy final : public DialogPhotoLegacy {
-    using DialogPhotoLegacy::DialogPhotoLegacy;
-  };
-
-  struct DialogPhotoBigLegacy final : public DialogPhotoLegacy {
-    using DialogPhotoLegacy::DialogPhotoLegacy;
-  };
-
-  // for legacy sticker set thumbnails
-  struct StickerSetThumbnailLegacy final : public StickerSetThumbnail {
-    StickerSetThumbnailLegacy() = default;
-    StickerSetThumbnailLegacy(int64 sticker_set_id, int64 sticker_set_access_hash, int64 volume_id, int32 local_id)
-        : StickerSetThumbnail(sticker_set_id, sticker_set_access_hash), volume_id(volume_id), local_id(local_id) {
-    }
-
-    int64 volume_id = 0;
-    int32 local_id = 0;
-  };
-
-  // for sticker set thumbnails identified by version
-  struct StickerSetThumbnailVersion final : public StickerSetThumbnail {
-    StickerSetThumbnailVersion() = default;
-    StickerSetThumbnailVersion(int64 sticker_set_id, int64 sticker_set_access_hash, int32 version)
-        : StickerSetThumbnail(sticker_set_id, sticker_set_access_hash), version(version) {
-    }
-
-    int32 version = 0;
-  };
-
-  PhotoSizeSource() = default;
-
-  static PhotoSizeSource thumbnail(FileType file_type, int32 thumbnail_type) {
-    return PhotoSizeSource(Thumbnail(file_type, thumbnail_type));
-  }
-
-  static PhotoSizeSource dialog_photo(DialogId dialog_id, int64 dialog_access_hash, bool is_big) {
-    if (is_big) {
-      return PhotoSizeSource(DialogPhotoBig(dialog_id, dialog_access_hash));
-    } else {
-      return PhotoSizeSource(DialogPhotoSmall(dialog_id, dialog_access_hash));
-    }
-  }
-
-  static PhotoSizeSource full_legacy(int64 volume_id, int32 local_id, int64 secret) {
-    return PhotoSizeSource(FullLegacy(volume_id, local_id, secret));
-  }
-
-  static PhotoSizeSource dialog_photo_legacy(DialogId dialog_id, int64 dialog_access_hash, bool is_big, int64 volume_id,
-                                             int32 local_id) {
-    if (is_big) {
-      return PhotoSizeSource(DialogPhotoBigLegacy(dialog_id, dialog_access_hash, volume_id, local_id));
-    } else {
-      return PhotoSizeSource(DialogPhotoSmallLegacy(dialog_id, dialog_access_hash, volume_id, local_id));
-    }
-  }
-
-  static PhotoSizeSource sticker_set_thumbnail_legacy(int64 sticker_set_id, int64 sticker_set_access_hash,
-                                                      int64 volume_id, int32 local_id) {
-    return PhotoSizeSource(StickerSetThumbnailLegacy(sticker_set_id, sticker_set_access_hash, volume_id, local_id));
-  }
-
-  static PhotoSizeSource sticker_set_thumbnail(int64 sticker_set_id, int64 sticker_set_access_hash, int32 version) {
-    return PhotoSizeSource(StickerSetThumbnailVersion(sticker_set_id, sticker_set_access_hash, version));
-  }
-
-  static bool unique_less(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
-
-  static bool unique_equal(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
-
-  Type get_type(const char *source) const {
-    auto offset = variant_.get_offset();
-    LOG_CHECK(offset >= 0) << offset << ' ' << source;
-    return static_cast<Type>(offset);
-  }
-
-  FileType get_file_type(const char *source) const;
-
-  Thumbnail &thumbnail() {
-    return variant_.get<Thumbnail>();
-  }
-
-  const Legacy &legacy() const {
-    return variant_.get<Legacy>();
-  }
-  const Thumbnail &thumbnail() const {
-    return variant_.get<Thumbnail>();
-  }
-  const DialogPhoto &dialog_photo() const {
-    switch (variant_.get_offset()) {
-      case 2:
-        return variant_.get<DialogPhotoSmall>();
-      case 3:
-        return variant_.get<DialogPhotoBig>();
-      case 6:
-        return variant_.get<DialogPhotoSmallLegacy>();
-      case 7:
-        return variant_.get<DialogPhotoBigLegacy>();
-      default:
-        UNREACHABLE();
-        return variant_.get<DialogPhotoSmall>();
-    }
-  }
-  const StickerSetThumbnail &sticker_set_thumbnail() const {
-    switch (variant_.get_offset()) {
-      case 4:
-        return variant_.get<StickerSetThumbnail>();
-      case 8:
-        return variant_.get<StickerSetThumbnailLegacy>();
-      case 9:
-        return variant_.get<StickerSetThumbnailVersion>();
-      default:
-        UNREACHABLE();
-        return variant_.get<StickerSetThumbnail>();
-    }
-  }
-  const FullLegacy &full_legacy() const {
-    return variant_.get<FullLegacy>();
-  }
-  const DialogPhotoLegacy &dialog_photo_legacy() const {
-    if (variant_.get_offset() == 6) {
-      return variant_.get<DialogPhotoSmallLegacy>();
-    } else {
-      return variant_.get<DialogPhotoBigLegacy>();
-    }
-  }
-  const StickerSetThumbnailLegacy &sticker_set_thumbnail_legacy() const {
-    return variant_.get<StickerSetThumbnailLegacy>();
-  }
-  const StickerSetThumbnailVersion &sticker_set_thumbnail_version() const {
-    return variant_.get<StickerSetThumbnailVersion>();
-  }
-
-  // returns unique representation of the source
-  string get_unique(const char *source) const;
-
-  // can't be called for Legacy sources
-  string get_unique_name(int64 photo_id, const char *source) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  friend bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
-
- private:
-  Variant<Legacy, Thumbnail, DialogPhotoSmall, DialogPhotoBig, StickerSetThumbnail, FullLegacy, DialogPhotoSmallLegacy,
-          DialogPhotoBigLegacy, StickerSetThumbnailLegacy, StickerSetThumbnailVersion>
-      variant_;
-
-  template <class T>
-  explicit PhotoSizeSource(const T &variant) : variant_(variant) {
-  }
-
-  int32 get_compare_type(const char *source) const;
-
-  int64 get_compare_volume_id() const;
-
-  int32 get_compare_local_id() const;
-};
-
-bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
-bool operator!=(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const PhotoSizeSource &source);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoSizeSource.hpp b/third-party/td/td/td/telegram/PhotoSizeSource.hpp
deleted file mode 100644
index 1fb6a180d9..0000000000
--- a/third-party/td/td/td/telegram/PhotoSizeSource.hpp
+++ /dev/null
@@ -1,201 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/PhotoSizeType.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const PhotoSizeSource::Legacy &source, StorerT &storer) {
-  UNREACHABLE();
-  store(source.secret, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::Legacy &source, ParserT &parser) {
-  parse(source.secret, parser);
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::Thumbnail &source, StorerT &storer) {
-  store(source.file_type, storer);
-  store(source.thumbnail_type, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::Thumbnail &source, ParserT &parser) {
-  int32 raw_type;
-  parse(raw_type, parser);
-  if (raw_type < 0 || raw_type >= static_cast<int32>(FileType::Size)) {
-    return parser.set_error("Wrong file type in PhotoSizeSource::Thumbnail");
-  }
-  source.file_type = static_cast<FileType>(raw_type);
-
-  parse(source.thumbnail_type, parser);
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::DialogPhoto &source, StorerT &storer) {
-  store(source.dialog_id, storer);
-  store(source.dialog_access_hash, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::DialogPhoto &source, ParserT &parser) {
-  parse(source.dialog_id, parser);
-  parse(source.dialog_access_hash, parser);
-
-  switch (source.dialog_id.get_type()) {
-    case DialogType::SecretChat:
-    case DialogType::None:
-      return parser.set_error(PSTRING() << "Invalid chat identifier " << source.dialog_id.get());
-    default:
-      break;
-  }
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::DialogPhotoSmall &source, StorerT &storer) {
-  store(static_cast<const PhotoSizeSource::DialogPhoto &>(source), storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::DialogPhotoSmall &source, ParserT &parser) {
-  parse(static_cast<PhotoSizeSource::DialogPhoto &>(source), parser);
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::DialogPhotoBig &source, StorerT &storer) {
-  store(static_cast<const PhotoSizeSource::DialogPhoto &>(source), storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::DialogPhotoBig &source, ParserT &parser) {
-  parse(static_cast<PhotoSizeSource::DialogPhoto &>(source), parser);
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::StickerSetThumbnail &source, StorerT &storer) {
-  store(source.sticker_set_id, storer);
-  store(source.sticker_set_access_hash, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::StickerSetThumbnail &source, ParserT &parser) {
-  parse(source.sticker_set_id, parser);
-  parse(source.sticker_set_access_hash, parser);
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::FullLegacy &source, StorerT &storer) {
-  store(source.volume_id, storer);
-  store(source.secret, storer);
-  store(source.local_id, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::FullLegacy &source, ParserT &parser) {
-  parse(source.volume_id, parser);
-  parse(source.secret, parser);
-  parse(source.local_id, parser);
-  // source.local_id can be negative in secret chat thumbnails
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::DialogPhotoLegacy &source, StorerT &storer) {
-  store(static_cast<const PhotoSizeSource::DialogPhoto &>(source), storer);
-  store(source.volume_id, storer);
-  store(source.local_id, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::DialogPhotoLegacy &source, ParserT &parser) {
-  parse(static_cast<PhotoSizeSource::DialogPhoto &>(source), parser);
-  parse(source.volume_id, parser);
-  parse(source.local_id, parser);
-  if (source.local_id < 0) {
-    parser.set_error("Wrong local_id");
-  }
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::DialogPhotoSmallLegacy &source, StorerT &storer) {
-  store(static_cast<const PhotoSizeSource::DialogPhotoLegacy &>(source), storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::DialogPhotoSmallLegacy &source, ParserT &parser) {
-  parse(static_cast<PhotoSizeSource::DialogPhotoLegacy &>(source), parser);
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::DialogPhotoBigLegacy &source, StorerT &storer) {
-  store(static_cast<const PhotoSizeSource::DialogPhotoLegacy &>(source), storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::DialogPhotoBigLegacy &source, ParserT &parser) {
-  parse(static_cast<PhotoSizeSource::DialogPhotoLegacy &>(source), parser);
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::StickerSetThumbnailLegacy &source, StorerT &storer) {
-  store(static_cast<const PhotoSizeSource::StickerSetThumbnail &>(source), storer);
-  store(source.volume_id, storer);
-  store(source.local_id, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::StickerSetThumbnailLegacy &source, ParserT &parser) {
-  parse(static_cast<PhotoSizeSource::StickerSetThumbnail &>(source), parser);
-  parse(source.volume_id, parser);
-  parse(source.local_id, parser);
-  if (source.local_id < 0) {
-    parser.set_error("Wrong local_id");
-  }
-}
-
-template <class StorerT>
-void store(const PhotoSizeSource::StickerSetThumbnailVersion &source, StorerT &storer) {
-  store(static_cast<const PhotoSizeSource::StickerSetThumbnail &>(source), storer);
-  store(source.version, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeSource::StickerSetThumbnailVersion &source, ParserT &parser) {
-  parse(static_cast<PhotoSizeSource::StickerSetThumbnail &>(source), parser);
-  parse(source.version, parser);
-}
-
-template <class StorerT>
-void PhotoSizeSource::store(StorerT &storer) const {
-  td::store(variant_, storer);
-}
-
-template <class ParserT>
-void PhotoSizeSource::parse(ParserT &parser) {
-  td::parse(variant_, parser);
-  if (parser.get_error() == nullptr && parser.version() >= static_cast<int32>(Version::RemovePhotoVolumeAndLocalId)) {
-    switch (get_type("PhotoSizeSource::parse")) {
-      case Type::Legacy:
-      case Type::StickerSetThumbnail:
-        parser.set_error("Invalid photo size source stored");
-        break;
-      default:
-        // ok
-        break;
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoSizeType.h b/third-party/td/td/td/telegram/PhotoSizeType.h
deleted file mode 100644
index 2399ad4852..0000000000
--- a/third-party/td/td/td/telegram/PhotoSizeType.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct PhotoSizeType {
-  int32 type = 0;
-
-  PhotoSizeType() = default;
-
-  explicit PhotoSizeType(int32 type) : type(type) {
-  }
-};
-
-inline bool operator==(const PhotoSizeType &lhs, char c) {
-  return lhs.type == c;
-}
-
-inline bool operator==(const PhotoSizeType &lhs, int32 type) {
-  return lhs.type == type;
-}
-
-inline bool operator==(const PhotoSizeType &lhs, const PhotoSizeType &rhs) {
-  return lhs.type == rhs.type;
-}
-
-inline bool operator!=(const PhotoSizeType &lhs, char c) {
-  return !(lhs == c);
-}
-
-inline bool operator!=(const PhotoSizeType &lhs, int32 type) {
-  return !(lhs == type);
-}
-
-inline bool operator!=(const PhotoSizeType &lhs, const PhotoSizeType &rhs) {
-  return !(lhs == rhs);
-}
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const PhotoSizeType &photo_size_type) {
-  auto type = photo_size_type.type;
-  if ('a' <= type && type <= 'z') {
-    return string_builder << static_cast<char>(type);
-  }
-  return string_builder << type;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PhotoSizeType.hpp b/third-party/td/td/td/telegram/PhotoSizeType.hpp
deleted file mode 100644
index 1dca736c23..0000000000
--- a/third-party/td/td/td/telegram/PhotoSizeType.hpp
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/PhotoSizeType.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const PhotoSizeType &type, StorerT &storer) {
-  store(type.type, storer);
-}
-
-template <class ParserT>
-void parse(PhotoSizeType &type, ParserT &parser) {
-  parse(type.type, parser);
-  if (type.type < 0 || type.type >= 128) {
-    parser.set_error("Wrong photo size type");
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PollId.h b/third-party/td/td/td/telegram/PollId.h
deleted file mode 100644
index ca08351d98..0000000000
--- a/third-party/td/td/td/telegram/PollId.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class PollId {
-  int64 id = 0;
-
- public:
-  PollId() = default;
-
-  explicit constexpr PollId(int64 poll_id) : id(poll_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  PollId(T poll_id) = delete;
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const PollId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const PollId &other) const {
-    return id != other.id;
-  }
-
-  bool is_valid() const {
-    return id != 0;
-  }
-};
-
-struct PollIdHash {
-  uint32 operator()(PollId poll_id) const {
-    return Hash<int64>()(poll_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, PollId poll_id) {
-  return string_builder << "poll " << poll_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PollId.hpp b/third-party/td/td/td/telegram/PollId.hpp
deleted file mode 100644
index 32b8028a38..0000000000
--- a/third-party/td/td/td/telegram/PollId.hpp
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/PollId.h"
-
-#include "td/telegram/PollManager.h"
-#include "td/telegram/PollManager.hpp"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const PollId &poll_id, StorerT &storer) {
-  storer.context()->td().get_actor_unsafe()->poll_manager_->store_poll(poll_id, storer);
-}
-
-template <class ParserT>
-void parse(PollId &poll_id, ParserT &parser) {
-  poll_id = parser.context()->td().get_actor_unsafe()->poll_manager_->parse_poll(parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PollManager.cpp b/third-party/td/td/td/telegram/PollManager.cpp
deleted file mode 100644
index 32500efa0c..0000000000
--- a/third-party/td/td/td/telegram/PollManager.cpp
+++ /dev/null
@@ -1,1972 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PollManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChainId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/PollId.hpp"
-#include "td/telegram/PollManager.hpp"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-#include <limits>
-
-namespace td {
-
-class GetPollResultsQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::Updates>> promise_;
-  PollId poll_id_;
-  DialogId dialog_id_;
-  MessageId message_id_;
-
- public:
-  explicit GetPollResultsQuery(Promise<tl_object_ptr<telegram_api::Updates>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(PollId poll_id, MessageFullId message_full_id) {
-    poll_id_ = poll_id;
-    dialog_id_ = message_full_id.get_dialog_id();
-    message_id_ = message_full_id.get_message_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Can't reget poll, because have no read access to " << dialog_id_;
-      return promise_.set_value(nullptr);
-    }
-
-    auto message_id = message_id_.get_server_message_id().get();
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getPollResults(std::move(input_peer), message_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPollResults>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->messages_manager_->on_get_message_error(dialog_id_, message_id_, status, "GetPollResultsQuery")) {
-      LOG(ERROR) << "Receive " << status << ", while trying to get results of " << poll_id_;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPollVotersQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::messages_votesList>> promise_;
-  PollId poll_id_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetPollVotersQuery(Promise<tl_object_ptr<telegram_api::messages_votesList>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(PollId poll_id, MessageFullId message_full_id, BufferSlice &&option, const string &offset, int32 limit) {
-    poll_id_ = poll_id;
-    dialog_id_ = message_full_id.get_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Can't get poll, because have no read access to " << dialog_id_;
-      return promise_.set_error(Status::Error(400, "Chat is not accessible"));
-    }
-
-    CHECK(!option.empty());
-    int32 flags = telegram_api::messages_getPollVotes::OPTION_MASK;
-    if (!offset.empty()) {
-      flags |= telegram_api::messages_getPollVotes::OFFSET_MASK;
-    }
-
-    auto message_id = message_full_id.get_message_id().get_server_message_id().get();
-    send_query(G()->net_query_creator().create(telegram_api::messages_getPollVotes(
-        flags, std::move(input_peer), message_id, std::move(option), offset, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPollVotes>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetPollVotersQuery") &&
-        status.message() != "MESSAGE_ID_INVALID") {
-      LOG(ERROR) << "Receive " << status << ", while trying to get voters of " << poll_id_;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendVoteQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::Updates>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SendVoteQuery(Promise<tl_object_ptr<telegram_api::Updates>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(MessageFullId message_full_id, vector<BufferSlice> &&options, PollId poll_id, uint64 generation,
-            NetQueryRef *query_ref) {
-    dialog_id_ = message_full_id.get_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Can't set poll answer, because have no read access to " << dialog_id_;
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    auto message_id = message_full_id.get_message_id().get_server_message_id().get();
-    auto query = G()->net_query_creator().create(
-        telegram_api::messages_sendVote(std::move(input_peer), message_id, std::move(options)),
-        {{poll_id}, {dialog_id_}});
-    *query_ref = query.get_weak();
-    send_query(std::move(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendVote>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendVoteQuery: " << to_string(result);
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendVoteQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class StopPollQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit StopPollQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(MessageFullId message_full_id, unique_ptr<ReplyMarkup> &&reply_markup, PollId poll_id) {
-    dialog_id_ = message_full_id.get_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Edit);
-    if (input_peer == nullptr) {
-      LOG(INFO) << "Can't close poll, because have no edit access to " << dialog_id_;
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = telegram_api::messages_editMessage::MEDIA_MASK;
-    auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), reply_markup);
-    if (input_reply_markup != nullptr) {
-      flags |= telegram_api::messages_editMessage::REPLY_MARKUP_MASK;
-    }
-
-    auto message_id = message_full_id.get_message_id().get_server_message_id().get();
-    auto poll = telegram_api::make_object<telegram_api::poll>(
-        poll_id.get(), 0, true, false, false, false,
-        telegram_api::make_object<telegram_api::textWithEntities>(string(), Auto()), Auto(), 0, 0);
-    auto input_media = telegram_api::make_object<telegram_api::inputMediaPoll>(0, std::move(poll),
-                                                                               vector<BufferSlice>(), string(), Auto());
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_editMessage(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-                                           message_id, string(), std::move(input_media), std::move(input_reply_markup),
-                                           vector<tl_object_ptr<telegram_api::MessageEntity>>(), 0, 0),
-        {{poll_id}, {dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for StopPollQuery: " << to_string(result);
-    td_->updates_manager_->on_get_updates(std::move(result), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && status.message() == "MESSAGE_NOT_MODIFIED") {
-      return promise_.set_value(Unit());
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "StopPollQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-PollManager::PollManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  update_poll_timeout_.set_callback(on_update_poll_timeout_callback);
-  update_poll_timeout_.set_callback_data(static_cast<void *>(this));
-
-  close_poll_timeout_.set_callback(on_close_poll_timeout_callback);
-  close_poll_timeout_.set_callback_data(static_cast<void *>(this));
-
-  unload_poll_timeout_.set_callback(on_unload_poll_timeout_callback);
-  unload_poll_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-void PollManager::start_up() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  class StateCallback final : public StateManager::Callback {
-   public:
-    explicit StateCallback(ActorId<PollManager> parent) : parent_(std::move(parent)) {
-    }
-    bool on_online(bool is_online) final {
-      if (is_online) {
-        send_closure(parent_, &PollManager::on_online);
-      }
-      return parent_.is_alive();
-    }
-
-   private:
-    ActorId<PollManager> parent_;
-  };
-  send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-}
-
-void PollManager::tear_down() {
-  parent_.reset();
-}
-
-PollManager::~PollManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), polls_, server_poll_messages_,
-                                              other_poll_messages_, reply_poll_counts_, poll_voters_,
-                                              loaded_from_database_polls_);
-}
-
-void PollManager::on_update_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto poll_manager = static_cast<PollManager *>(poll_manager_ptr);
-  send_closure_later(poll_manager->actor_id(poll_manager), &PollManager::on_update_poll_timeout, PollId(poll_id_int));
-}
-
-void PollManager::on_close_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto poll_manager = static_cast<PollManager *>(poll_manager_ptr);
-  send_closure_later(poll_manager->actor_id(poll_manager), &PollManager::on_close_poll_timeout, PollId(poll_id_int));
-}
-
-void PollManager::on_unload_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto poll_manager = static_cast<PollManager *>(poll_manager_ptr);
-  send_closure_later(poll_manager->actor_id(poll_manager), &PollManager::on_unload_poll_timeout, PollId(poll_id_int));
-}
-
-bool PollManager::is_local_poll_id(PollId poll_id) {
-  return poll_id.get() < 0 && poll_id.get() > std::numeric_limits<int32>::min();
-}
-
-const PollManager::Poll *PollManager::get_poll(PollId poll_id) const {
-  return polls_.get_pointer(poll_id);
-}
-
-const PollManager::Poll *PollManager::get_poll(PollId poll_id) {
-  auto p = polls_.get_pointer(poll_id);
-  if (p != nullptr) {
-    schedule_poll_unload(poll_id);
-  }
-  return p;
-}
-
-PollManager::Poll *PollManager::get_poll_editable(PollId poll_id) {
-  auto p = polls_.get_pointer(poll_id);
-  if (p != nullptr) {
-    schedule_poll_unload(poll_id);
-  }
-  return p;
-}
-
-bool PollManager::have_poll(PollId poll_id) const {
-  return get_poll(poll_id) != nullptr;
-}
-
-void PollManager::notify_on_poll_update(PollId poll_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (server_poll_messages_.count(poll_id) > 0) {
-    server_poll_messages_[poll_id].foreach([&](const MessageFullId &message_full_id) {
-      td_->messages_manager_->on_external_update_message_content(message_full_id, "notify_on_poll_update 1");
-    });
-  }
-
-  if (other_poll_messages_.count(poll_id) > 0) {
-    other_poll_messages_[poll_id].foreach([&](const MessageFullId &message_full_id) {
-      td_->messages_manager_->on_external_update_message_content(message_full_id, "notify_on_poll_update 2");
-    });
-  }
-}
-
-string PollManager::get_poll_database_key(PollId poll_id) {
-  return PSTRING() << "poll" << poll_id.get();
-}
-
-void PollManager::save_poll(const Poll *poll, PollId poll_id) {
-  CHECK(!is_local_poll_id(poll_id));
-  poll->was_saved_ = true;
-
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  LOG(INFO) << "Save " << poll_id << " to database";
-  CHECK(poll != nullptr);
-  G()->td_db()->get_sqlite_pmc()->set(get_poll_database_key(poll_id), log_event_store(*poll).as_slice().str(), Auto());
-}
-
-void PollManager::on_load_poll_from_database(PollId poll_id, string value) {
-  CHECK(poll_id.is_valid());
-  loaded_from_database_polls_.insert(poll_id);
-
-  LOG(INFO) << "Successfully loaded " << poll_id << " of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_poll_database_key(poll_id), Auto());
-  //  return;
-
-  CHECK(!have_poll(poll_id));
-  if (!value.empty()) {
-    auto poll = make_unique<Poll>();
-    if (log_event_parse(*poll, value).is_error()) {
-      return;
-    }
-    for (const auto &recent_voter_min_channel : poll->recent_voter_min_channels_) {
-      LOG(INFO) << "Add min voted " << recent_voter_min_channel.first;
-      td_->chat_manager_->add_min_channel(recent_voter_min_channel.first, recent_voter_min_channel.second);
-    }
-    Dependencies dependencies;
-    for (auto dialog_id : poll->recent_voter_dialog_ids_) {
-      dependencies.add_message_sender_dependencies(dialog_id);
-    }
-    if (!dependencies.resolve_force(td_, "on_load_poll_from_database")) {
-      poll->recent_voter_dialog_ids_.clear();
-      poll->recent_voter_min_channels_.clear();
-    }
-    if (!poll->is_closed_ && poll->close_date_ != 0) {
-      if (poll->close_date_ <= G()->server_time()) {
-        poll->is_closed_ = true;
-      } else {
-        CHECK(!is_local_poll_id(poll_id));
-        if (!G()->close_flag()) {
-          close_poll_timeout_.set_timeout_in(poll_id.get(), poll->close_date_ - G()->server_time() + 1e-3);
-        }
-      }
-    }
-    polls_[poll_id] = std::move(poll);
-  }
-}
-
-bool PollManager::have_poll_force(PollId poll_id) {
-  return get_poll_force(poll_id) != nullptr;
-}
-
-PollManager::Poll *PollManager::get_poll_force(PollId poll_id) {
-  auto poll = get_poll_editable(poll_id);
-  if (poll != nullptr) {
-    return poll;
-  }
-  if (!G()->use_message_database()) {
-    return nullptr;
-  }
-  if (!poll_id.is_valid() || loaded_from_database_polls_.count(poll_id)) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load " << poll_id << " from database";
-  on_load_poll_from_database(poll_id, G()->td_db()->get_sqlite_sync_pmc()->get(get_poll_database_key(poll_id)));
-  return get_poll_editable(poll_id);
-}
-
-void PollManager::remove_unallowed_entities(FormattedText &text) {
-  td::remove_if(text.entities, [](MessageEntity &entity) { return entity.type != MessageEntity::Type::CustomEmoji; });
-}
-
-td_api::object_ptr<td_api::pollOption> PollManager::get_poll_option_object(const PollOption &poll_option) {
-  return td_api::make_object<td_api::pollOption>(get_formatted_text_object(nullptr, poll_option.text_, true, -1),
-                                                 poll_option.voter_count_, 0, poll_option.is_chosen_, false);
-}
-
-vector<int32> PollManager::get_vote_percentage(const vector<int32> &voter_counts, int32 total_voter_count) {
-  int32 sum = 0;
-  for (auto voter_count : voter_counts) {
-    CHECK(0 <= voter_count);
-    CHECK(voter_count <= std::numeric_limits<int32>::max() - sum);
-    sum += voter_count;
-  }
-  if (total_voter_count > sum) {
-    if (sum != 0) {
-      LOG(ERROR) << "Have total_voter_count = " << total_voter_count << ", but votes sum = " << sum << ": "
-                 << voter_counts;
-    }
-    total_voter_count = sum;
-  }
-
-  vector<int32> result(voter_counts.size(), 0);
-  if (total_voter_count == 0) {
-    return result;
-  }
-  if (total_voter_count != sum) {
-    // just round to the nearest
-    for (size_t i = 0; i < result.size(); i++) {
-      result[i] =
-          static_cast<int32>((static_cast<int64>(voter_counts[i]) * 200 + total_voter_count) / total_voter_count / 2);
-    }
-    return result;
-  }
-
-  // make sure that options with equal votes have equal percent and total sum is less than 100%
-  int32 percent_sum = 0;
-  vector<int32> gap(voter_counts.size(), 0);
-  for (size_t i = 0; i < result.size(); i++) {
-    auto multiplied_voter_count = static_cast<int64>(voter_counts[i]) * 100;
-    result[i] = static_cast<int32>(multiplied_voter_count / total_voter_count);
-    CHECK(0 <= result[i] && result[i] <= 100);
-    gap[i] = static_cast<int32>(static_cast<int64>(result[i] + 1) * total_voter_count - multiplied_voter_count);
-    CHECK(0 <= gap[i] && gap[i] <= total_voter_count);
-    percent_sum += result[i];
-  }
-  CHECK(0 <= percent_sum && percent_sum <= 100);
-  if (percent_sum == 100) {
-    return result;
-  }
-
-  // now we need to choose up to (100 - percent_sum) options with a minimum total gap, such that
-  // any two options with the same voter_count are chosen or not chosen simultaneously
-  struct Option {
-    int32 pos = -1;
-    int32 count = 0;
-  };
-  FlatHashMap<int32, Option> options;
-  for (size_t i = 0; i < result.size(); i++) {
-    auto &option = options[voter_counts[i] + 1];
-    if (option.pos == -1) {
-      option.pos = narrow_cast<int32>(i);
-    }
-    option.count++;
-  }
-  vector<Option> sorted_options;
-  for (const auto &it : options) {
-    const auto &option = it.second;
-    auto pos = option.pos;
-    if (gap[pos] > total_voter_count / 2) {
-      // do not round to wrong direction
-      continue;
-    }
-    if (total_voter_count % 2 == 0 && gap[pos] == total_voter_count / 2 && result[pos] >= 50) {
-      // round halves to the 50%
-      continue;
-    }
-    sorted_options.push_back(option);
-  }
-  std::sort(sorted_options.begin(), sorted_options.end(), [&](const Option &lhs, const Option &rhs) {
-    if (gap[lhs.pos] != gap[rhs.pos]) {
-      // prefer options with smallest gap
-      return gap[lhs.pos] < gap[rhs.pos];
-    }
-    if (lhs.count != rhs.count) {
-      // prefer more popular options
-      return lhs.count > rhs.count;
-    }
-    return lhs.pos < rhs.pos;  // prefer the first encountered option
-  });
-
-  // dynamic programming or brute force can give perfect result, but for now we use simple gready approach
-  int32 left_percent = 100 - percent_sum;
-  for (auto option : sorted_options) {
-    if (option.count <= left_percent) {
-      left_percent -= option.count;
-
-      auto pos = option.pos;
-      for (size_t i = 0; i < result.size(); i++) {
-        if (voter_counts[i] == voter_counts[pos]) {
-          result[i]++;
-        }
-      }
-      if (left_percent == 0) {
-        break;
-      }
-    }
-  }
-  return result;
-}
-
-td_api::object_ptr<td_api::poll> PollManager::get_poll_object(PollId poll_id) const {
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-  return get_poll_object(poll_id, poll);
-}
-
-td_api::object_ptr<td_api::poll> PollManager::get_poll_object(PollId poll_id, const Poll *poll) const {
-  vector<td_api::object_ptr<td_api::pollOption>> poll_options;
-  auto it = pending_answers_.find(poll_id);
-  int32 voter_count_diff = 0;
-  if (it == pending_answers_.end() || (it->second.is_finished_ && poll->was_saved_)) {
-    poll_options = transform(poll->options_, get_poll_option_object);
-  } else {
-    const auto &chosen_options = it->second.options_;
-    LOG(INFO) << "Have pending chosen options " << chosen_options << " in " << poll_id;
-    for (auto &poll_option : poll->options_) {
-      auto is_being_chosen = td::contains(chosen_options, poll_option.data_);
-      if (poll_option.is_chosen_) {
-        voter_count_diff = -1;
-      }
-      poll_options.push_back(td_api::make_object<td_api::pollOption>(
-          get_formatted_text_object(nullptr, poll_option.text_, true, -1),
-          poll_option.voter_count_ - static_cast<int32>(poll_option.is_chosen_), 0, false, is_being_chosen));
-    }
-  }
-
-  auto total_voter_count = poll->total_voter_count_ + voter_count_diff;
-  bool is_voted = false;
-  for (auto &poll_option : poll_options) {
-    is_voted |= poll_option->is_chosen_;
-  }
-  if (!is_voted && !poll->is_closed_ && !td_->auth_manager_->is_bot()) {
-    // hide the voter counts
-    for (auto &poll_option : poll_options) {
-      poll_option->voter_count_ = 0;
-    }
-  } else {
-    // calculate vote percentage and fix total_voter_count
-    auto voter_counts = transform(poll_options, [](auto &poll_option) { return poll_option->voter_count_; });
-    auto voter_count_sum = 0;
-    for (auto voter_count : voter_counts) {
-      if (total_voter_count < voter_count) {
-        LOG(ERROR) << "Fix total voter count from " << poll->total_voter_count_ << " + " << voter_count_diff << " to "
-                   << voter_count << " in " << poll_id;
-        total_voter_count = voter_count;
-      }
-      voter_count_sum += voter_count;
-    }
-    if (voter_count_sum < total_voter_count && voter_count_sum != 0) {
-      LOG(ERROR) << "Fix total voter count from " << poll->total_voter_count_ << " + " << voter_count_diff << " to "
-                 << voter_count_sum << " in " << poll_id;
-      total_voter_count = voter_count_sum;
-    }
-
-    auto vote_percentage = get_vote_percentage(voter_counts, total_voter_count);
-    CHECK(poll_options.size() == vote_percentage.size());
-    for (size_t i = 0; i < poll_options.size(); i++) {
-      poll_options[i]->vote_percentage_ = vote_percentage[i];
-    }
-  }
-  td_api::object_ptr<td_api::PollType> poll_type;
-  if (poll->is_quiz_) {
-    auto correct_option_id = is_local_poll_id(poll_id) ? -1 : poll->correct_option_id_;
-    poll_type = td_api::make_object<td_api::pollTypeQuiz>(
-        correct_option_id,
-        get_formatted_text_object(nullptr, is_local_poll_id(poll_id) ? FormattedText() : poll->explanation_, true, -1));
-  } else {
-    poll_type = td_api::make_object<td_api::pollTypeRegular>(poll->allow_multiple_answers_);
-  }
-
-  auto open_period = poll->open_period_;
-  auto close_date = poll->close_date_;
-  if (open_period != 0 && close_date == 0) {
-    close_date = G()->unix_time() + open_period;
-  }
-  if (open_period == 0 && close_date != 0) {
-    auto now = G()->unix_time();
-    if (close_date < now + 5) {
-      close_date = 0;
-    } else {
-      open_period = close_date - now;
-    }
-  }
-  if (poll->is_closed_) {
-    open_period = 0;
-    close_date = 0;
-  }
-
-  vector<td_api::object_ptr<td_api::MessageSender>> recent_voters;
-  for (auto dialog_id : poll->recent_voter_dialog_ids_) {
-    auto recent_voter = get_min_message_sender_object(td_, dialog_id, "get_poll_object");
-    if (recent_voter != nullptr) {
-      recent_voters.push_back(std::move(recent_voter));
-    }
-  }
-  return td_api::make_object<td_api::poll>(poll_id.get(), get_formatted_text_object(nullptr, poll->question_, true, -1),
-                                           std::move(poll_options), total_voter_count, std::move(recent_voters),
-                                           poll->is_anonymous_, std::move(poll_type), open_period, close_date,
-                                           poll->is_closed_);
-}
-
-telegram_api::object_ptr<telegram_api::pollAnswer> PollManager::get_input_poll_option(const PollOption &poll_option) {
-  return telegram_api::make_object<telegram_api::pollAnswer>(
-      get_input_text_with_entities(nullptr, poll_option.text_, "get_input_poll_option"),
-      BufferSlice(poll_option.data_));
-}
-
-PollId PollManager::create_poll(FormattedText &&question, vector<FormattedText> &&options, bool is_anonymous,
-                                bool allow_multiple_answers, bool is_quiz, int32 correct_option_id,
-                                FormattedText &&explanation, int32 open_period, int32 close_date, bool is_closed) {
-  remove_unallowed_entities(question);
-  for (auto &option : options) {
-    remove_unallowed_entities(option);
-  }
-  auto poll = make_unique<Poll>();
-  poll->question_ = std::move(question);
-  int pos = '0';
-  for (auto &option_text : options) {
-    PollOption option;
-    option.text_ = std::move(option_text);
-    option.data_ = string(1, narrow_cast<char>(pos++));
-    poll->options_.push_back(std::move(option));
-  }
-  poll->is_anonymous_ = is_anonymous;
-  poll->allow_multiple_answers_ = allow_multiple_answers;
-  poll->is_quiz_ = is_quiz;
-  poll->correct_option_id_ = correct_option_id;
-  poll->explanation_ = std::move(explanation);
-  poll->open_period_ = open_period;
-  poll->close_date_ = close_date;
-  poll->is_closed_ = is_closed;
-
-  PollId poll_id(--current_local_poll_id_);
-  CHECK(is_local_poll_id(poll_id));
-  polls_.set(poll_id, std::move(poll));
-  return poll_id;
-}
-
-void PollManager::register_poll(PollId poll_id, MessageFullId message_full_id, const char *source) {
-  CHECK(have_poll(poll_id));
-  if (message_full_id.get_message_id().is_scheduled() || !message_full_id.get_message_id().is_server()) {
-    other_poll_messages_[poll_id].insert(message_full_id);
-    if (!G()->close_flag()) {
-      unload_poll_timeout_.cancel_timeout(poll_id.get());
-    }
-    return;
-  }
-  LOG(INFO) << "Register " << poll_id << " from " << message_full_id << " from " << source;
-  server_poll_messages_[poll_id].insert(message_full_id);
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-  if (!td_->auth_manager_->is_bot() && !is_local_poll_id(poll_id) &&
-      !(poll->is_closed_ && poll->is_updated_after_close_) && !G()->close_flag()) {
-    update_poll_timeout_.add_timeout_in(poll_id.get(), 0);
-  }
-  if (!G()->close_flag()) {
-    unload_poll_timeout_.cancel_timeout(poll_id.get());
-  }
-}
-
-void PollManager::unregister_poll(PollId poll_id, MessageFullId message_full_id, const char *source) {
-  CHECK(have_poll(poll_id));
-  if (message_full_id.get_message_id().is_scheduled() || !message_full_id.get_message_id().is_server()) {
-    auto &message_ids = other_poll_messages_[poll_id];
-    auto is_deleted = message_ids.erase(message_full_id) > 0;
-    LOG_CHECK(is_deleted) << source << ' ' << poll_id << ' ' << message_full_id;
-    if (is_local_poll_id(poll_id)) {
-      CHECK(message_ids.empty());
-      forget_local_poll(poll_id);
-    }
-    if (message_ids.empty()) {
-      other_poll_messages_.erase(poll_id);
-
-      schedule_poll_unload(poll_id);
-    }
-    return;
-  }
-  LOG(INFO) << "Unregister " << poll_id << " from " << message_full_id << " from " << source;
-  auto &message_ids = server_poll_messages_[poll_id];
-  auto is_deleted = message_ids.erase(message_full_id) > 0;
-  LOG_CHECK(is_deleted) << source << ' ' << poll_id << ' ' << message_full_id;
-  if (is_local_poll_id(poll_id)) {
-    CHECK(message_ids.empty());
-    forget_local_poll(poll_id);
-  }
-  if (message_ids.empty()) {
-    server_poll_messages_.erase(poll_id);
-    if (!G()->close_flag()) {
-      update_poll_timeout_.cancel_timeout(poll_id.get(), "unregister_poll");
-    }
-
-    schedule_poll_unload(poll_id);
-  }
-}
-
-void PollManager::register_reply_poll(PollId poll_id) {
-  CHECK(have_poll(poll_id));
-  CHECK(!is_local_poll_id(poll_id));
-  LOG(INFO) << "Register replied " << poll_id;
-  reply_poll_counts_[poll_id]++;
-  if (!G()->close_flag()) {
-    unload_poll_timeout_.cancel_timeout(poll_id.get());
-  }
-}
-
-void PollManager::unregister_reply_poll(PollId poll_id) {
-  CHECK(have_poll(poll_id));
-  CHECK(!is_local_poll_id(poll_id));
-  LOG(INFO) << "Unregister replied " << poll_id;
-  auto &count = reply_poll_counts_[poll_id];
-  CHECK(count > 0);
-  count--;
-  if (count == 0) {
-    reply_poll_counts_.erase(poll_id);
-    schedule_poll_unload(poll_id);
-  }
-}
-
-bool PollManager::can_unload_poll(PollId poll_id) {
-  if (G()->close_flag()) {
-    return false;
-  }
-  if (is_local_poll_id(poll_id) || server_poll_messages_.count(poll_id) != 0 ||
-      other_poll_messages_.count(poll_id) != 0 || reply_poll_counts_.count(poll_id) != 0 ||
-      pending_answers_.count(poll_id) != 0 || being_closed_polls_.count(poll_id) != 0) {
-    return false;
-  }
-
-  auto it = poll_voters_.find(poll_id);
-  if (it != poll_voters_.end() && !it->second.empty()) {
-    for (auto &voters : it->second) {
-      if (!voters.pending_queries_.empty()) {
-        return false;
-      }
-    }
-  }
-
-  return true;
-}
-
-void PollManager::schedule_poll_unload(PollId poll_id) {
-  if (can_unload_poll(poll_id)) {
-    unload_poll_timeout_.set_timeout_in(poll_id.get(), UNLOAD_POLL_DELAY);
-  }
-}
-
-bool PollManager::get_poll_is_closed(PollId poll_id) const {
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-  return poll->is_closed_;
-}
-
-bool PollManager::get_poll_is_anonymous(PollId poll_id) const {
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-  return poll->is_anonymous_;
-}
-
-string PollManager::get_poll_search_text(PollId poll_id) const {
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-
-  string result = poll->question_.text;
-  for (auto &option : poll->options_) {
-    result += ' ';
-    result += option.text_.text;
-  }
-  return result;
-}
-
-void PollManager::set_poll_answer(PollId poll_id, MessageFullId message_full_id, vector<int32> &&option_ids,
-                                  Promise<Unit> &&promise) {
-  td::unique(option_ids);
-
-  if (is_local_poll_id(poll_id)) {
-    return promise.set_error(Status::Error(400, "Poll can't be answered"));
-  }
-
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-  if (poll->is_closed_) {
-    return promise.set_error(Status::Error(400, "Can't answer closed poll"));
-  }
-  if (!poll->allow_multiple_answers_ && option_ids.size() > 1) {
-    return promise.set_error(Status::Error(400, "Can't choose more than 1 option in the poll"));
-  }
-  if (poll->is_quiz_ && option_ids.empty()) {
-    return promise.set_error(Status::Error(400, "Can't retract vote in a quiz"));
-  }
-  if (poll->is_quiz_ && pending_answers_.count(poll_id) != 0) {
-    return promise.set_error(Status::Error(400, "Can't revote in a quiz"));
-  }
-
-  FlatHashMap<uint64, int> affected_option_ids;
-  vector<string> options;
-  for (auto &option_id : option_ids) {
-    auto index = static_cast<size_t>(option_id);
-    if (index >= poll->options_.size()) {
-      return promise.set_error(Status::Error(400, "Invalid option ID specified"));
-    }
-    options.push_back(poll->options_[index].data_);
-
-    affected_option_ids[index + 1]++;
-  }
-  for (size_t option_index = 0; option_index < poll->options_.size(); option_index++) {
-    if (poll->options_[option_index].is_chosen_) {
-      if (poll->is_quiz_) {
-        return promise.set_error(Status::Error(400, "Can't revote in a quiz"));
-      }
-      affected_option_ids[option_index + 1]++;
-    }
-  }
-  for (const auto &it : affected_option_ids) {
-    if (it.second == 1) {
-      invalidate_poll_option_voters(poll, poll_id, static_cast<size_t>(it.first - 1));
-    }
-  }
-
-  do_set_poll_answer(poll_id, message_full_id, std::move(options), 0, std::move(promise));
-}
-
-class PollManager::SetPollAnswerLogEvent {
- public:
-  PollId poll_id_;
-  MessageFullId message_full_id_;
-  vector<string> options_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(poll_id_, storer);
-    td::store(message_full_id_, storer);
-    td::store(options_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(poll_id_, parser);
-    td::parse(message_full_id_, parser);
-    td::parse(options_, parser);
-  }
-};
-
-void PollManager::do_set_poll_answer(PollId poll_id, MessageFullId message_full_id, vector<string> &&options,
-                                     uint64 log_event_id, Promise<Unit> &&promise) {
-  LOG(INFO) << "Set answer in " << poll_id << " from " << message_full_id;
-  if (!poll_id.is_valid() || !message_full_id.get_dialog_id().is_valid() ||
-      !message_full_id.get_message_id().is_valid()) {
-    CHECK(log_event_id != 0);
-    LOG(ERROR) << "Invalid SetPollAnswer log event";
-    binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    return;
-  }
-  if (!G()->close_flag()) {
-    unload_poll_timeout_.cancel_timeout(poll_id.get());
-  }
-
-  auto &pending_answer = pending_answers_[poll_id];
-  if (!pending_answer.promises_.empty() && pending_answer.options_ == options) {
-    pending_answer.promises_.push_back(std::move(promise));
-    return;
-  }
-
-  if (pending_answer.log_event_id_ != 0 && log_event_id != 0) {
-    LOG(ERROR) << "Duplicate SetPollAnswer log event: " << pending_answer.log_event_id_ << " and " << log_event_id;
-    binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    return;
-  }
-  if (log_event_id == 0 && G()->use_message_database()) {
-    SetPollAnswerLogEvent log_event;
-    log_event.poll_id_ = poll_id;
-    log_event.message_full_id_ = message_full_id;
-    log_event.options_ = options;
-    auto storer = get_log_event_storer(log_event);
-    if (pending_answer.generation_ == 0 || pending_answer.is_finished_) {
-      CHECK(pending_answer.log_event_id_ == 0);
-      log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SetPollAnswer, storer);
-      LOG(INFO) << "Add set poll answer log event " << log_event_id;
-      CHECK(log_event_id != 0);
-    } else {
-      CHECK(pending_answer.log_event_id_ != 0);
-      log_event_id = pending_answer.log_event_id_;
-      auto new_log_event_id =
-          binlog_rewrite(G()->td_db()->get_binlog(), log_event_id, LogEvent::HandlerType::SetPollAnswer, storer);
-      LOG(INFO) << "Rewrite set poll answer log event " << log_event_id << " with " << new_log_event_id;
-    }
-  }
-
-  if (!pending_answer.promises_.empty()) {
-    CHECK(!pending_answer.query_ref_.empty());
-    cancel_query(pending_answer.query_ref_);
-    pending_answer.query_ref_ = NetQueryRef();
-
-    auto promises = std::move(pending_answer.promises_);
-    pending_answer.promises_.clear();
-    for (auto &old_promise : promises) {
-      old_promise.set_value(Unit());
-    }
-  }
-
-  vector<BufferSlice> sent_options;
-  for (auto &option : options) {
-    sent_options.emplace_back(option);
-  }
-
-  auto generation = ++current_generation_;
-
-  pending_answer.options_ = std::move(options);
-  pending_answer.promises_.push_back(std::move(promise));
-  pending_answer.generation_ = generation;
-  pending_answer.log_event_id_ = log_event_id;
-  pending_answer.is_finished_ = false;
-
-  notify_on_poll_update(poll_id);
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), poll_id, generation](Result<tl_object_ptr<telegram_api::Updates>> &&result) {
-        send_closure(actor_id, &PollManager::on_set_poll_answer, poll_id, generation, std::move(result));
-      });
-  td_->create_handler<SendVoteQuery>(std::move(query_promise))
-      ->send(message_full_id, std::move(sent_options), poll_id, generation, &pending_answer.query_ref_);
-}
-
-void PollManager::on_set_poll_answer(PollId poll_id, uint64 generation,
-                                     Result<tl_object_ptr<telegram_api::Updates>> &&result) {
-  if (G()->close_flag() && result.is_error()) {
-    // request will be re-sent after restart
-    return;
-  }
-  auto it = pending_answers_.find(poll_id);
-  if (it == pending_answers_.end()) {
-    // can happen if this is an answer with mismatched generation and server has ignored invoke-after
-    return;
-  }
-
-  auto &pending_answer = it->second;
-  CHECK(!pending_answer.promises_.empty());
-  if (pending_answer.generation_ != generation) {
-    return;
-  }
-
-  if (pending_answer.log_event_id_ != 0) {
-    LOG(INFO) << "Delete set poll answer log event " << pending_answer.log_event_id_;
-    binlog_erase(G()->td_db()->get_binlog(), pending_answer.log_event_id_);
-    pending_answer.log_event_id_ = 0;
-  }
-
-  pending_answer.is_finished_ = true;
-
-  auto poll = get_poll(poll_id);
-  if (poll != nullptr) {
-    poll->was_saved_ = false;
-  }
-  if (result.is_ok()) {
-    td_->updates_manager_->on_get_updates(
-        result.move_as_ok(),
-        PromiseCreator::lambda([actor_id = actor_id(this), poll_id, generation](Result<Unit> &&result) mutable {
-          send_closure(actor_id, &PollManager::on_set_poll_answer_finished, poll_id, Unit(), generation);
-        }));
-  } else {
-    on_set_poll_answer_finished(poll_id, result.move_as_error(), generation);
-  }
-}
-
-void PollManager::on_set_poll_answer_finished(PollId poll_id, Result<Unit> &&result, uint64 generation) {
-  auto it = pending_answers_.find(poll_id);
-  if (it == pending_answers_.end()) {
-    return;
-  }
-
-  auto &pending_answer = it->second;
-  CHECK(!pending_answer.promises_.empty());
-  if (pending_answer.generation_ != generation) {
-    return;
-  }
-  CHECK(pending_answer.is_finished_);
-
-  auto promises = std::move(pending_answer.promises_);
-  pending_answers_.erase(it);
-
-  if (!G()->close_flag()) {
-    auto poll = get_poll(poll_id);
-    if (poll != nullptr && !poll->was_saved_) {
-      // no updates were sent during updates processing, so send them
-      // poll wasn't changed, so there is no reason to actually save it
-      if (!(poll->is_closed_ && poll->is_updated_after_close_)) {
-        LOG(INFO) << "Schedule updating of " << poll_id << " soon";
-        update_poll_timeout_.set_timeout_in(poll_id.get(), 0.0);
-      }
-
-      notify_on_poll_update(poll_id);
-      poll->was_saved_ = true;
-    }
-  }
-
-  LOG(INFO) << "Finish to set answer for " << poll_id;
-
-  if (result.is_ok()) {
-    set_promises(promises);
-  } else {
-    fail_promises(promises, result.move_as_error());
-  }
-}
-
-void PollManager::invalidate_poll_voters(const Poll *poll, PollId poll_id) {
-  if (poll->is_anonymous_) {
-    return;
-  }
-
-  auto it = poll_voters_.find(poll_id);
-  if (it == poll_voters_.end()) {
-    return;
-  }
-
-  for (auto &voters : it->second) {
-    voters.was_invalidated_ = true;
-  }
-}
-
-void PollManager::invalidate_poll_option_voters(const Poll *poll, PollId poll_id, size_t option_index) {
-  if (poll->is_anonymous_) {
-    return;
-  }
-
-  auto it = poll_voters_.find(poll_id);
-  if (it == poll_voters_.end()) {
-    return;
-  }
-
-  auto &poll_voters = it->second;
-  CHECK(poll_voters.size() == poll->options_.size());
-  CHECK(option_index < poll_voters.size());
-  poll_voters[option_index].was_invalidated_ = true;
-}
-
-PollManager::PollOptionVoters &PollManager::get_poll_option_voters(const Poll *poll, PollId poll_id, int32 option_id) {
-  auto &poll_voters = poll_voters_[poll_id];
-  if (poll_voters.empty()) {
-    poll_voters.resize(poll->options_.size());
-  }
-  auto index = narrow_cast<size_t>(option_id);
-  CHECK(index < poll_voters.size());
-  return poll_voters[index];
-}
-
-td_api::object_ptr<td_api::messageSenders> PollManager::get_poll_voters_object(
-    int32 total_count, const vector<DialogId> &voter_dialog_ids) const {
-  auto result = td_api::make_object<td_api::messageSenders>();
-  result->total_count_ = total_count;
-  for (auto dialog_id : voter_dialog_ids) {
-    auto message_sender = get_min_message_sender_object(td_, dialog_id, "get_poll_voters_object");
-    if (message_sender != nullptr) {
-      result->senders_.push_back(std::move(message_sender));
-    }
-  }
-  return result;
-}
-
-void PollManager::get_poll_voters(PollId poll_id, MessageFullId message_full_id, int32 option_id, int32 offset,
-                                  int32 limit, Promise<td_api::object_ptr<td_api::messageSenders>> &&promise) {
-  if (is_local_poll_id(poll_id)) {
-    return promise.set_error(Status::Error(400, "Poll results can't be received"));
-  }
-  if (offset < 0) {
-    return promise.set_error(Status::Error(400, "Invalid offset specified"));
-  }
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_GET_POLL_VOTERS) {
-    limit = MAX_GET_POLL_VOTERS;
-  }
-
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-  if (option_id < 0 || static_cast<size_t>(option_id) >= poll->options_.size()) {
-    return promise.set_error(Status::Error(400, "Invalid option ID specified"));
-  }
-  if (poll->is_anonymous_) {
-    return promise.set_error(Status::Error(400, "Poll is anonymous"));
-  }
-
-  auto &voters = get_poll_option_voters(poll, poll_id, option_id);
-  if (voters.pending_queries_.empty() && voters.was_invalidated_ && offset == 0) {
-    voters.voter_dialog_ids_.clear();
-    voters.next_offset_.clear();
-    voters.was_invalidated_ = false;
-  }
-
-  auto cur_offset = narrow_cast<int32>(voters.voter_dialog_ids_.size());
-
-  if (offset > cur_offset) {
-    return promise.set_error(Status::Error(400, "Too big offset specified; voters can be received only consequently"));
-  }
-  if (offset < cur_offset) {
-    vector<DialogId> result;
-    for (int32 i = offset; i != cur_offset && i - offset < limit; i++) {
-      result.push_back(voters.voter_dialog_ids_[i]);
-    }
-    return promise.set_value(
-        get_poll_voters_object(max(poll->options_[option_id].voter_count_, cur_offset), std::move(result)));
-  }
-
-  if (poll->options_[option_id].voter_count_ == 0 || (voters.next_offset_.empty() && cur_offset > 0)) {
-    return promise.set_value(get_poll_voters_object(0, vector<DialogId>()));
-  }
-
-  voters.pending_queries_.push_back(std::move(promise));
-  if (voters.pending_queries_.size() > 1) {
-    return;
-  }
-
-  unload_poll_timeout_.cancel_timeout(poll_id.get());
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), poll_id, option_id, offset = voters.next_offset_,
-                              limit](Result<tl_object_ptr<telegram_api::messages_votesList>> &&result) mutable {
-        send_closure(actor_id, &PollManager::on_get_poll_voters, poll_id, option_id, std::move(offset), limit,
-                     std::move(result));
-      });
-  td_->create_handler<GetPollVotersQuery>(std::move(query_promise))
-      ->send(poll_id, message_full_id, BufferSlice(poll->options_[option_id].data_), voters.next_offset_,
-             max(limit, 10));
-}
-
-void PollManager::on_get_poll_voters(PollId poll_id, int32 option_id, string offset, int32 limit,
-                                     Result<tl_object_ptr<telegram_api::messages_votesList>> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-  if (option_id < 0 || static_cast<size_t>(option_id) >= poll->options_.size()) {
-    LOG(ERROR) << "Can't process voters for option " << option_id << " in " << poll_id << ", because it has only "
-               << poll->options_.size() << " options";
-    return;
-  }
-  if (poll->is_anonymous_) {
-    // just in case
-    result = Status::Error(400, "Poll is anonymous");
-  }
-
-  auto &voters = get_poll_option_voters(poll, poll_id, option_id);
-  if (voters.next_offset_ != offset) {
-    LOG(ERROR) << "Expected results for option " << option_id << " in " << poll_id << " with offset "
-               << voters.next_offset_ << ", but received with " << offset;
-    return;
-  }
-  auto promises = std::move(voters.pending_queries_);
-  if (promises.empty()) {
-    LOG(ERROR) << "Have no waiting promises for option " << option_id << " in " << poll_id;
-    return;
-  }
-  if (result.is_error()) {
-    fail_promises(promises, result.move_as_error());
-    return;
-  }
-
-  auto vote_list = result.move_as_ok();
-  td_->user_manager_->on_get_users(std::move(vote_list->users_), "on_get_poll_voters");
-  td_->chat_manager_->on_get_chats(std::move(vote_list->chats_), "on_get_poll_voters");
-
-  voters.next_offset_ = std::move(vote_list->next_offset_);
-  if (poll->options_[option_id].voter_count_ != vote_list->count_) {
-    ++current_generation_;
-    update_poll_timeout_.set_timeout_in(poll_id.get(), 0.0);
-  }
-
-  vector<DialogId> dialog_ids;
-  for (auto &peer_vote : vote_list->votes_) {
-    DialogId dialog_id;
-    switch (peer_vote->get_id()) {
-      case telegram_api::messagePeerVote::ID: {
-        auto voter = telegram_api::move_object_as<telegram_api::messagePeerVote>(peer_vote);
-        if (voter->option_ != poll->options_[option_id].data_) {
-          continue;
-        }
-
-        dialog_id = DialogId(voter->peer_);
-        break;
-      }
-      case telegram_api::messagePeerVoteInputOption::ID: {
-        auto voter = telegram_api::move_object_as<telegram_api::messagePeerVoteInputOption>(peer_vote);
-        dialog_id = DialogId(voter->peer_);
-        break;
-      }
-      case telegram_api::messagePeerVoteMultiple::ID: {
-        auto voter = telegram_api::move_object_as<telegram_api::messagePeerVoteMultiple>(peer_vote);
-        if (!td::contains(voter->options_, poll->options_[option_id].data_)) {
-          continue;
-        }
-
-        dialog_id = DialogId(voter->peer_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-    if (dialog_id.is_valid()) {
-      dialog_ids.push_back(dialog_id);
-    } else {
-      LOG(ERROR) << "Receive " << dialog_id << " as voter in " << poll_id;
-    }
-  }
-  append(voters.voter_dialog_ids_, dialog_ids);
-  if (static_cast<int32>(dialog_ids.size()) > limit) {
-    dialog_ids.resize(limit);
-  }
-  auto known_voter_count = narrow_cast<int32>(voters.voter_dialog_ids_.size());
-  if (voters.next_offset_.empty() && known_voter_count != vote_list->count_) {
-    // invalidate_poll_option_voters(poll, poll_id, option_id);
-    voters.was_invalidated_ = true;
-  }
-
-  for (auto &promise : promises) {
-    promise.set_value(get_poll_voters_object(max(vote_list->count_, known_voter_count), vector<DialogId>(dialog_ids)));
-  }
-}
-
-void PollManager::stop_poll(PollId poll_id, MessageFullId message_full_id, unique_ptr<ReplyMarkup> &&reply_markup,
-                            Promise<Unit> &&promise) {
-  if (is_local_poll_id(poll_id)) {
-    LOG(ERROR) << "Receive local " << poll_id << " from " << message_full_id << " in stop_poll";
-    stop_local_poll(poll_id);
-    promise.set_value(Unit());
-    return;
-  }
-  auto poll = get_poll_editable(poll_id);
-  CHECK(poll != nullptr);
-  if (poll->is_closed_) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  ++current_generation_;
-
-  poll->is_closed_ = true;
-  save_poll(poll, poll_id);
-  notify_on_poll_update(poll_id);
-
-  do_stop_poll(poll_id, message_full_id, std::move(reply_markup), 0, std::move(promise));
-}
-
-class PollManager::StopPollLogEvent {
- public:
-  PollId poll_id_;
-  MessageFullId message_full_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(poll_id_, storer);
-    td::store(message_full_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(poll_id_, parser);
-    td::parse(message_full_id_, parser);
-  }
-};
-
-void PollManager::do_stop_poll(PollId poll_id, MessageFullId message_full_id, unique_ptr<ReplyMarkup> &&reply_markup,
-                               uint64 log_event_id, Promise<Unit> &&promise) {
-  LOG(INFO) << "Stop " << poll_id << " from " << message_full_id;
-  CHECK(poll_id.is_valid());
-
-  if (log_event_id == 0 && G()->use_message_database() && reply_markup == nullptr) {
-    StopPollLogEvent log_event{poll_id, message_full_id};
-    log_event_id =
-        binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::StopPoll, get_log_event_storer(log_event));
-  }
-
-  unload_poll_timeout_.cancel_timeout(poll_id.get());
-
-  bool is_inserted = being_closed_polls_.insert(poll_id).second;
-  CHECK(is_inserted);
-  auto new_promise = PromiseCreator::lambda([actor_id = actor_id(this), poll_id, message_full_id, log_event_id,
-                                             promise = std::move(promise)](Result<Unit> result) mutable {
-    send_closure(actor_id, &PollManager::on_stop_poll_finished, poll_id, message_full_id, log_event_id,
-                 std::move(result), std::move(promise));
-  });
-
-  td_->create_handler<StopPollQuery>(std::move(new_promise))->send(message_full_id, std::move(reply_markup), poll_id);
-}
-
-void PollManager::on_stop_poll_finished(PollId poll_id, MessageFullId message_full_id, uint64 log_event_id,
-                                        Result<Unit> &&result, Promise<Unit> &&promise) {
-  being_closed_polls_.erase(poll_id);
-
-  if (log_event_id != 0 && !G()->close_flag()) {
-    binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-  }
-
-  if (td_->auth_manager_->is_bot()) {
-    if ((server_poll_messages_.count(poll_id) > 0 && server_poll_messages_[poll_id].count(message_full_id) > 0) ||
-        (other_poll_messages_.count(poll_id) > 0 && other_poll_messages_[poll_id].count(message_full_id) > 0)) {
-      td_->messages_manager_->on_external_update_message_content(message_full_id, "on_stop_poll_finished");
-    }
-  }
-
-  promise.set_result(std::move(result));
-}
-
-void PollManager::stop_local_poll(PollId poll_id) {
-  CHECK(is_local_poll_id(poll_id));
-  auto poll = get_poll_editable(poll_id);
-  CHECK(poll != nullptr);
-  if (poll->is_closed_) {
-    return;
-  }
-
-  poll->is_closed_ = true;
-  notify_on_poll_update(poll_id);
-}
-
-double PollManager::get_polling_timeout() const {
-  double result = td_->online_manager_->is_online() ? 60 : 30 * 60;
-  return result * Random::fast(70, 100) * 0.01;
-}
-
-void PollManager::on_update_poll_timeout(PollId poll_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(!is_local_poll_id(poll_id));
-
-  auto poll = get_poll(poll_id);
-  if (poll == nullptr || (poll->is_closed_ && poll->is_updated_after_close_)) {
-    return;
-  }
-  if (pending_answers_.count(poll_id) > 0) {
-    LOG(INFO) << "Skip fetching results of " << poll_id << ", because it is being voted now";
-    return;
-  }
-
-  if (server_poll_messages_.count(poll_id) == 0) {
-    return;
-  }
-
-  auto message_full_id = server_poll_messages_[poll_id].get_random();
-  LOG(INFO) << "Fetching results of " << poll_id << " from " << message_full_id;
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), poll_id, generation = current_generation_](
-                                                  Result<tl_object_ptr<telegram_api::Updates>> &&result) {
-    send_closure(actor_id, &PollManager::on_get_poll_results, poll_id, generation, std::move(result));
-  });
-  td_->create_handler<GetPollResultsQuery>(std::move(query_promise))->send(poll_id, message_full_id);
-}
-
-void PollManager::on_close_poll_timeout(PollId poll_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(!is_local_poll_id(poll_id));
-
-  auto poll = get_poll_editable(poll_id);
-  if (poll == nullptr || poll->is_closed_ || poll->close_date_ == 0) {
-    return;
-  }
-
-  LOG(INFO) << "Trying to close " << poll_id << " by timer";
-  if (poll->close_date_ <= G()->server_time()) {
-    poll->is_closed_ = true;
-    save_poll(poll, poll_id);
-    notify_on_poll_update(poll_id);
-
-    // don't send updatePoll for bots, because there is no way to guarantee it
-
-    if (!td_->auth_manager_->is_bot()) {
-      update_poll_timeout_.set_timeout_in(poll_id.get(), 1.0);
-    }
-  } else {
-    close_poll_timeout_.set_timeout_in(poll_id.get(), poll->close_date_ - G()->server_time() + 1e-3);
-  }
-}
-
-void PollManager::on_unload_poll_timeout(PollId poll_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (is_local_poll_id(poll_id)) {
-    LOG(INFO) << "Forget " << poll_id;
-
-    auto is_deleted = polls_.erase(poll_id) > 0;
-    CHECK(is_deleted);
-
-    CHECK(poll_voters_.count(poll_id) == 0);
-    CHECK(loaded_from_database_polls_.count(poll_id) == 0);
-    return;
-  }
-
-  if (!can_unload_poll(poll_id)) {
-    return;
-  }
-  if (!have_poll(poll_id)) {
-    return;
-  }
-
-  LOG(INFO) << "Unload " << poll_id;
-
-  update_poll_timeout_.cancel_timeout(poll_id.get(), "on_unload_poll_timeout");
-  close_poll_timeout_.cancel_timeout(poll_id.get());
-
-  auto is_deleted = polls_.erase(poll_id) > 0;
-  CHECK(is_deleted);
-
-  poll_voters_.erase(poll_id);
-  loaded_from_database_polls_.erase(poll_id);
-  unload_poll_timeout_.cancel_timeout(poll_id.get());
-}
-
-void PollManager::forget_local_poll(PollId poll_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(is_local_poll_id(poll_id));
-  unload_poll_timeout_.set_timeout_in(poll_id.get(), UNLOAD_POLL_DELAY);
-}
-
-void PollManager::on_get_poll_results(PollId poll_id, uint64 generation,
-                                      Result<tl_object_ptr<telegram_api::Updates>> result) {
-  G()->ignore_result_if_closing(result);
-
-  auto poll = get_poll(poll_id);
-  if (poll == nullptr) {
-    return;
-  }
-  if (result.is_error()) {
-    if (!(poll->is_closed_ && poll->is_updated_after_close_) && !G()->close_flag() && !td_->auth_manager_->is_bot()) {
-      auto timeout = get_polling_timeout();
-      LOG(INFO) << "Schedule updating of " << poll_id << " in " << timeout;
-      update_poll_timeout_.add_timeout_in(poll_id.get(), timeout);
-    }
-    return;
-  }
-  if (result.ok() == nullptr) {
-    return;
-  }
-  if (generation != current_generation_) {
-    LOG(INFO) << "Receive possibly outdated result of " << poll_id << ", reget it";
-    if (!(poll->is_closed_ && poll->is_updated_after_close_) && !G()->close_flag() && !td_->auth_manager_->is_bot()) {
-      update_poll_timeout_.set_timeout_in(poll_id.get(), 0.0);
-    }
-    return;
-  }
-
-  td_->updates_manager_->on_get_updates(result.move_as_ok(), Promise<Unit>());
-}
-
-void PollManager::on_online() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  server_poll_messages_.foreach([&](const PollId &poll_id, WaitFreeHashSet<MessageFullId, MessageFullIdHash> &) {
-    if (update_poll_timeout_.has_timeout(poll_id.get())) {
-      auto timeout = Random::fast(3, 30);
-      LOG(INFO) << "Schedule updating of " << poll_id << " in " << timeout;
-      update_poll_timeout_.set_timeout_in(poll_id.get(), timeout);
-    }
-  });
-}
-
-PollId PollManager::dup_poll(DialogId dialog_id, PollId poll_id) {
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-
-  auto question = poll->question_;
-  ::td::remove_unallowed_entities(td_, question, dialog_id);
-  auto options = transform(poll->options_, [](auto &option) { return option.text_; });
-  for (auto &option : options) {
-    ::td::remove_unallowed_entities(td_, option, dialog_id);
-  }
-  auto explanation = poll->explanation_;
-  ::td::remove_unallowed_entities(td_, explanation, dialog_id);
-  return create_poll(std::move(question), std::move(options), poll->is_anonymous_, poll->allow_multiple_answers_,
-                     poll->is_quiz_, poll->correct_option_id_, std::move(explanation), poll->open_period_,
-                     poll->open_period_ == 0 ? 0 : G()->unix_time(), false);
-}
-
-bool PollManager::has_input_media(PollId poll_id) const {
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-  return !poll->is_quiz_ || poll->correct_option_id_ >= 0;
-}
-
-tl_object_ptr<telegram_api::InputMedia> PollManager::get_input_media(PollId poll_id) const {
-  auto poll = get_poll(poll_id);
-  CHECK(poll != nullptr);
-
-  int32 poll_flags = 0;
-  if (poll->open_period_ != 0) {
-    poll_flags |= telegram_api::poll::CLOSE_PERIOD_MASK;
-  }
-  if (poll->close_date_ != 0) {
-    poll_flags |= telegram_api::poll::CLOSE_DATE_MASK;
-  }
-
-  int32 flags = 0;
-  vector<BufferSlice> correct_answers;
-  if (poll->is_quiz_) {
-    flags |= telegram_api::inputMediaPoll::CORRECT_ANSWERS_MASK;
-    CHECK(poll->correct_option_id_ >= 0);
-    CHECK(static_cast<size_t>(poll->correct_option_id_) < poll->options_.size());
-    correct_answers.push_back(BufferSlice(poll->options_[poll->correct_option_id_].data_));
-
-    if (!poll->explanation_.text.empty()) {
-      flags |= telegram_api::inputMediaPoll::SOLUTION_MASK;
-    }
-  }
-  return telegram_api::make_object<telegram_api::inputMediaPoll>(
-      flags,
-      telegram_api::make_object<telegram_api::poll>(
-          0, poll_flags, poll->is_closed_, !poll->is_anonymous_, poll->allow_multiple_answers_, poll->is_quiz_,
-          get_input_text_with_entities(nullptr, poll->question_, "get_input_media_poll"),
-          transform(poll->options_, get_input_poll_option), poll->open_period_, poll->close_date_),
-      std::move(correct_answers), poll->explanation_.text,
-      get_input_message_entities(td_->user_manager_.get(), poll->explanation_.entities, "get_input_media_poll"));
-}
-
-vector<PollManager::PollOption> PollManager::get_poll_options(
-    vector<telegram_api::object_ptr<telegram_api::pollAnswer>> &&poll_options) {
-  return transform(std::move(poll_options), [](telegram_api::object_ptr<telegram_api::pollAnswer> &&poll_option) {
-    PollOption option;
-    option.text_ = get_formatted_text(nullptr, std::move(poll_option->text_), true, true, "get_poll_options");
-    remove_unallowed_entities(option.text_);
-    option.data_ = poll_option->option_.as_slice().str();
-    return option;
-  });
-}
-
-PollId PollManager::on_get_poll(PollId poll_id, tl_object_ptr<telegram_api::poll> &&poll_server,
-                                tl_object_ptr<telegram_api::pollResults> &&poll_results, const char *source) {
-  bool is_bot = td_->auth_manager_->is_bot();
-  bool need_update_poll = poll_id.is_valid() && is_bot;
-  if (!poll_id.is_valid() && poll_server != nullptr) {
-    poll_id = PollId(poll_server->id_);
-  }
-  if (!poll_id.is_valid() || is_local_poll_id(poll_id)) {
-    LOG(ERROR) << "Receive " << poll_id << " from " << source << ": " << oneline(to_string(poll_server)) << " "
-               << oneline(to_string(poll_results));
-    return PollId();
-  }
-  if (poll_server != nullptr && poll_server->id_ != poll_id.get()) {
-    LOG(ERROR) << "Receive poll " << poll_server->id_ << " instead of " << poll_id << " from " << source;
-    return PollId();
-  }
-  constexpr size_t MAX_POLL_OPTIONS = 10;  // server-side limit
-  if (poll_server != nullptr &&
-      (poll_server->answers_.size() <= 1 || poll_server->answers_.size() > 10 * MAX_POLL_OPTIONS)) {
-    LOG(ERROR) << "Receive " << poll_id << " from " << source
-               << " with wrong number of answers: " << to_string(poll_server);
-    return PollId();
-  }
-  if (poll_server != nullptr) {
-    FlatHashSet<Slice, SliceHash> option_data;
-    for (auto &answer : poll_server->answers_) {
-      if (answer->option_.empty()) {
-        LOG(ERROR) << "Receive " << poll_id << " from " << source
-                   << " with an empty option data: " << to_string(poll_server);
-        return PollId();
-      }
-      option_data.insert(answer->option_.as_slice());
-    }
-    if (option_data.size() != poll_server->answers_.size()) {
-      LOG(ERROR) << "Receive " << poll_id << " from " << source
-                 << " with duplicate options: " << to_string(poll_server);
-      return PollId();
-    }
-  }
-
-  auto poll = get_poll_force(poll_id);
-  bool is_changed = false;
-  bool need_save_to_database = false;
-  if (poll == nullptr) {
-    if (poll_server == nullptr) {
-      LOG(INFO) << "Ignore " << poll_id << ", because have no data about it";
-      return PollId();
-    }
-
-    auto p = make_unique<Poll>();
-    poll = p.get();
-    polls_.set(poll_id, std::move(p));
-  } else if (poll_results != nullptr && poll_results->min_ && pending_answers_.count(poll_id) != 0) {
-    LOG(INFO) << "Ignore being answered min-" << poll_id;
-    return poll_id;
-  }
-
-  CHECK(poll != nullptr);
-
-  bool poll_server_is_closed = false;
-  if (poll_server != nullptr) {
-    string correct_option_data;
-    if (poll->correct_option_id_ != -1) {
-      CHECK(0 <= poll->correct_option_id_ && poll->correct_option_id_ < static_cast<int32>(poll->options_.size()));
-      correct_option_data = poll->options_[poll->correct_option_id_].data_;
-    }
-    bool are_options_changed = false;
-    if (poll->options_.size() != poll_server->answers_.size()) {
-      poll->options_ = get_poll_options(std::move(poll_server->answers_));
-      are_options_changed = true;
-    } else {
-      auto options = get_poll_options(std::move(poll_server->answers_));
-      for (size_t i = 0; i < options.size(); i++) {
-        if (poll->options_[i].text_ != options[i].text_) {
-          poll->options_[i].text_ = std::move(options[i].text_);
-          is_changed = true;
-        }
-        if (poll->options_[i].data_ != options[i].data_) {
-          poll->options_[i].data_ = std::move(options[i].data_);
-          poll->options_[i].voter_count_ = 0;
-          poll->options_[i].is_chosen_ = false;
-          are_options_changed = true;
-        }
-      }
-    }
-    if (are_options_changed) {
-      if (!correct_option_data.empty()) {
-        poll->correct_option_id_ = -1;
-        for (size_t i = 0; i < poll->options_.size(); i++) {
-          if (poll->options_[i].data_ == correct_option_data) {
-            poll->correct_option_id_ = static_cast<int32>(i);
-            break;
-          }
-        }
-      }
-      auto it = poll_voters_.find(poll_id);
-      if (it != poll_voters_.end()) {
-        for (auto &voters : it->second) {
-          fail_promises(voters.pending_queries_, Status::Error(500, "The poll was changed"));
-        }
-        poll_voters_.erase(it);
-      }
-      is_changed = true;
-    }
-    auto question = get_formatted_text(nullptr, std::move(poll_server->question_), true, true, "on_get_poll");
-    remove_unallowed_entities(question);
-    if (poll->question_ != question) {
-      poll->question_ = std::move(question);
-      is_changed = true;
-    }
-    poll_server_is_closed = poll_server->closed_;
-    if (poll_server_is_closed && !poll->is_closed_) {
-      poll->is_closed_ = poll_server_is_closed;
-      is_changed = true;
-    }
-    if (poll_server_is_closed && !poll->is_updated_after_close_) {
-      poll->is_updated_after_close_ = true;
-      is_changed = true;
-    }
-    int32 open_period = poll_server->close_period_;
-    int32 close_date = poll_server->close_date_;
-    if (close_date == 0 || open_period == 0) {
-      close_date = 0;
-      open_period = 0;
-    }
-    if (open_period != poll->open_period_) {
-      poll->open_period_ = open_period;
-      if (!poll->is_closed_) {
-        is_changed = true;
-      } else {
-        need_save_to_database = true;
-      }
-    }
-    if (close_date != poll->close_date_) {
-      poll->close_date_ = close_date;
-      if (!poll->is_closed_) {
-        is_changed = true;
-        if (close_date != 0) {
-          if (close_date <= G()->server_time()) {
-            poll->is_closed_ = true;
-          } else if (!G()->close_flag()) {
-            close_poll_timeout_.set_timeout_in(poll_id.get(), close_date - G()->server_time() + 1e-3);
-          }
-        } else if (!G()->close_flag()) {
-          close_poll_timeout_.cancel_timeout(poll_id.get());
-        }
-      } else {
-        need_save_to_database = true;
-      }
-    }
-    bool is_anonymous = !poll_server->public_voters_;
-    if (is_anonymous != poll->is_anonymous_) {
-      poll->is_anonymous_ = is_anonymous;
-      is_changed = true;
-    }
-    bool allow_multiple_answers = poll_server->multiple_choice_;
-    bool is_quiz = poll_server->quiz_;
-    if (is_quiz && allow_multiple_answers) {
-      LOG(ERROR) << "Receive quiz " << poll_id << " from " << source << " allowing multiple answers";
-      allow_multiple_answers = false;
-    }
-    if (allow_multiple_answers != poll->allow_multiple_answers_) {
-      poll->allow_multiple_answers_ = allow_multiple_answers;
-      is_changed = true;
-    }
-    if (is_quiz != poll->is_quiz_) {
-      poll->is_quiz_ = is_quiz;
-      is_changed = true;
-    }
-  }
-
-  CHECK(poll_results != nullptr);
-  bool is_min = poll_results->min_;
-  bool has_total_voters = (poll_results->flags_ & telegram_api::pollResults::TOTAL_VOTERS_MASK) != 0;
-  if (has_total_voters && poll_results->total_voters_ != poll->total_voter_count_) {
-    poll->total_voter_count_ = poll_results->total_voters_;
-    if (poll->total_voter_count_ < 0) {
-      LOG(ERROR) << "Receive " << poll->total_voter_count_ << " voters in " << poll_id << " from " << source;
-      poll->total_voter_count_ = 0;
-    }
-    is_changed = true;
-  }
-  int32 correct_option_id = -1;
-  for (auto &poll_result : poll_results->results_) {
-    Slice data = poll_result->option_.as_slice();
-    for (size_t option_index = 0; option_index < poll->options_.size(); option_index++) {
-      auto &option = poll->options_[option_index];
-      if (option.data_ != data) {
-        continue;
-      }
-      if (!is_min) {
-        bool is_chosen = poll_result->chosen_;
-        if (is_chosen != option.is_chosen_) {
-          option.is_chosen_ = is_chosen;
-          is_changed = true;
-        }
-      }
-      if (!is_min || poll_server_is_closed) {
-        bool is_correct = poll_result->correct_;
-        if (is_correct) {
-          if (correct_option_id != -1) {
-            LOG(ERROR) << "Receive more than 1 correct answers " << correct_option_id << " and " << option_index
-                       << " in " << poll_id << " from " << source;
-          }
-          correct_option_id = static_cast<int32>(option_index);
-        }
-      } else {
-        correct_option_id = poll->correct_option_id_;
-      }
-
-      if (poll_result->voters_ < 0) {
-        LOG(ERROR) << "Receive " << poll_result->voters_ << " voters for an option in " << poll_id << " from "
-                   << source;
-        poll_result->voters_ = 0;
-      }
-      if (option.is_chosen_ && poll_result->voters_ == 0) {
-        LOG(ERROR) << "Receive 0 voters for the chosen option " << option_index << " in " << poll_id << " from "
-                   << source;
-        poll_result->voters_ = 1;
-      }
-      if (poll_result->voters_ > poll->total_voter_count_) {
-        LOG(ERROR) << "Have only " << poll->total_voter_count_ << " poll voters, but there are " << poll_result->voters_
-                   << " voters for an option in " << poll_id << " from " << source;
-        poll->total_voter_count_ = poll_result->voters_;
-      }
-      auto max_voter_count = std::numeric_limits<int32>::max() / narrow_cast<int32>(poll->options_.size()) - 2;
-      if (poll_result->voters_ > max_voter_count) {
-        LOG(ERROR) << "Have too many " << poll_result->voters_ << " poll voters for an option in " << poll_id
-                   << " from " << source;
-        poll_result->voters_ = max_voter_count;
-      }
-      if (poll_result->voters_ != option.voter_count_) {
-        invalidate_poll_option_voters(poll, poll_id, option_index);
-        option.voter_count_ = poll_result->voters_;
-        is_changed = true;
-      }
-    }
-  }
-  if (!poll_results->results_.empty() && has_total_voters) {
-    int32 max_total_voter_count = 0;
-    for (auto &option : poll->options_) {
-      max_total_voter_count += option.voter_count_;
-    }
-    if (poll->total_voter_count_ > max_total_voter_count && max_total_voter_count != 0) {
-      LOG(ERROR) << "Have only " << max_total_voter_count << " total poll voters, but there are "
-                 << poll->total_voter_count_ << " voters in " << poll_id << " from " << source;
-      poll->total_voter_count_ = max_total_voter_count;
-    }
-  }
-
-  auto explanation = get_formatted_text(td_->user_manager_.get(), std::move(poll_results->solution_),
-                                        std::move(poll_results->solution_entities_), true, false, source);
-  if (poll->is_quiz_) {
-    if (poll->correct_option_id_ != correct_option_id) {
-      if (correct_option_id == -1 && poll->correct_option_id_ != -1) {
-        LOG(ERROR) << "Can't change correct option of " << poll_id << " from " << poll->correct_option_id_ << " to "
-                   << correct_option_id << " from " << source;
-      } else {
-        poll->correct_option_id_ = correct_option_id;
-        is_changed = true;
-      }
-    }
-    if (poll->explanation_ != explanation && (!is_min || poll_server_is_closed)) {
-      if (explanation.text.empty() && !poll->explanation_.text.empty()) {
-        LOG(ERROR) << "Can't change known " << poll_id << " explanation to empty from " << source;
-      } else {
-        poll->explanation_ = std::move(explanation);
-        is_changed = true;
-      }
-    }
-  } else {
-    if (correct_option_id != -1) {
-      LOG(ERROR) << "Receive correct option " << correct_option_id << " in non-quiz " << poll_id << " from " << source;
-    }
-    if (!explanation.text.empty()) {
-      LOG(ERROR) << "Receive explanation " << explanation << " in non-quiz " << poll_id << " from " << source;
-    }
-  }
-
-  vector<DialogId> recent_voter_dialog_ids;
-  if (!is_bot) {
-    for (auto &peer_id : poll_results->recent_voters_) {
-      DialogId dialog_id(peer_id);
-      if (dialog_id.is_valid()) {
-        recent_voter_dialog_ids.push_back(dialog_id);
-      } else {
-        LOG(ERROR) << "Receive " << dialog_id << " as recent voter in " << poll_id << " from " << source;
-      }
-    }
-  }
-  if (poll->is_anonymous_ && !recent_voter_dialog_ids.empty()) {
-    LOG(ERROR) << "Receive anonymous " << poll_id << " with recent voters " << recent_voter_dialog_ids << " from "
-               << source;
-    recent_voter_dialog_ids.clear();
-  }
-  if (recent_voter_dialog_ids != poll->recent_voter_dialog_ids_) {
-    poll->recent_voter_dialog_ids_ = std::move(recent_voter_dialog_ids);
-    invalidate_poll_voters(poll, poll_id);
-    is_changed = true;
-  }
-
-  if (!is_bot && !poll->is_closed_ && !G()->close_flag()) {
-    auto timeout = get_polling_timeout();
-    LOG(INFO) << "Schedule updating of " << poll_id << " in " << timeout;
-    update_poll_timeout_.set_timeout_in(poll_id.get(), timeout);
-  }
-  if (is_changed || need_save_to_database) {
-    save_poll(poll, poll_id);
-  }
-  if (is_changed) {
-    notify_on_poll_update(poll_id);
-  }
-  if (need_update_poll && (is_changed || (poll->is_closed_ && being_closed_polls_.erase(poll_id) != 0))) {
-    send_closure(G()->td(), &Td::send_update, td_api::make_object<td_api::updatePoll>(get_poll_object(poll_id, poll)));
-
-    schedule_poll_unload(poll_id);
-  }
-  return poll_id;
-}
-
-void PollManager::on_get_poll_vote(PollId poll_id, DialogId dialog_id, vector<BufferSlice> &&options) {
-  if (!poll_id.is_valid()) {
-    LOG(ERROR) << "Receive updateMessagePollVote about invalid " << poll_id;
-    return;
-  }
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive updateMessagePollVote from invalid " << dialog_id;
-    return;
-  }
-  CHECK(td_->auth_manager_->is_bot());
-
-  vector<int32> option_ids;
-  for (auto &option : options) {
-    auto slice = option.as_slice();
-    if (slice.size() != 1 || slice[0] < '0' || slice[0] > '9') {
-      LOG(INFO) << "Receive updateMessagePollVote with unexpected option \"" << format::escaped(slice) << '"';
-      return;
-    }
-    option_ids.push_back(static_cast<int32>(slice[0] - '0'));
-  }
-
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updatePollAnswer>(
-          poll_id.get(), get_message_sender_object(td_, dialog_id, "on_get_poll_vote"), std::move(option_ids)));
-}
-
-void PollManager::on_binlog_events(vector<BinlogEvent> &&events) {
-  if (G()->close_flag()) {
-    return;
-  }
-  bool have_old_message_database = G()->use_message_database() && !G()->td_db()->was_dialog_db_created();
-  for (auto &event : events) {
-    switch (event.type_) {
-      case LogEvent::HandlerType::SetPollAnswer: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        SetPollAnswerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.message_full_id_.get_dialog_id();
-
-        Dependencies dependencies;
-        dependencies.add_dialog_dependencies(dialog_id);  // do not load the dialog itself
-        dependencies.resolve_force(td_, "SetPollAnswerLogEvent");
-
-        do_set_poll_answer(log_event.poll_id_, log_event.message_full_id_, std::move(log_event.options_), event.id_,
-                           Auto());
-        break;
-      }
-      case LogEvent::HandlerType::StopPoll: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        StopPollLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto dialog_id = log_event.message_full_id_.get_dialog_id();
-
-        Dependencies dependencies;
-        dependencies.add_dialog_dependencies(dialog_id);  // do not load the dialog itself
-        dependencies.resolve_force(td_, "StopPollLogEvent");
-
-        do_stop_poll(log_event.poll_id_, log_event.message_full_id_, nullptr, event.id_, Auto());
-        break;
-      }
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PollManager.h b/third-party/td/td/td/telegram/PollManager.h
deleted file mode 100644
index cf0cb328e1..0000000000
--- a/third-party/td/td/td/telegram/PollManager.h
+++ /dev/null
@@ -1,270 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MinChannel.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/PollId.h"
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeHashSet.h"
-
-#include <utility>
-
-namespace td {
-
-struct BinlogEvent;
-
-class Td;
-
-class PollManager final : public Actor {
- public:
-  PollManager(Td *td, ActorShared<> parent);
-
-  PollManager(const PollManager &) = delete;
-  PollManager &operator=(const PollManager &) = delete;
-  PollManager(PollManager &&) = delete;
-  PollManager &operator=(PollManager &&) = delete;
-  ~PollManager() final;
-
-  static bool is_local_poll_id(PollId poll_id);
-
-  PollId create_poll(FormattedText &&question, vector<FormattedText> &&options, bool is_anonymous,
-                     bool allow_multiple_answers, bool is_quiz, int32 correct_option_id, FormattedText &&explanation,
-                     int32 open_period, int32 close_date, bool is_closed);
-
-  void register_poll(PollId poll_id, MessageFullId message_full_id, const char *source);
-
-  void unregister_poll(PollId poll_id, MessageFullId message_full_id, const char *source);
-
-  void register_reply_poll(PollId poll_id);
-
-  void unregister_reply_poll(PollId poll_id);
-
-  bool get_poll_is_closed(PollId poll_id) const;
-
-  bool get_poll_is_anonymous(PollId poll_id) const;
-
-  string get_poll_search_text(PollId poll_id) const;
-
-  void set_poll_answer(PollId poll_id, MessageFullId message_full_id, vector<int32> &&option_ids,
-                       Promise<Unit> &&promise);
-
-  void get_poll_voters(PollId poll_id, MessageFullId message_full_id, int32 option_id, int32 offset, int32 limit,
-                       Promise<td_api::object_ptr<td_api::messageSenders>> &&promise);
-
-  void stop_poll(PollId poll_id, MessageFullId message_full_id, unique_ptr<ReplyMarkup> &&reply_markup,
-                 Promise<Unit> &&promise);
-
-  void stop_local_poll(PollId poll_id);
-
-  PollId dup_poll(DialogId dialog_id, PollId poll_id);
-
-  bool has_input_media(PollId poll_id) const;
-
-  tl_object_ptr<telegram_api::InputMedia> get_input_media(PollId poll_id) const;
-
-  PollId on_get_poll(PollId poll_id, tl_object_ptr<telegram_api::poll> &&poll_server,
-                     tl_object_ptr<telegram_api::pollResults> &&poll_results, const char *source);
-
-  void on_get_poll_vote(PollId poll_id, DialogId dialog_id, vector<BufferSlice> &&options);
-
-  td_api::object_ptr<td_api::poll> get_poll_object(PollId poll_id) const;
-
-  void on_binlog_events(vector<BinlogEvent> &&events);
-
-  static vector<int32> get_vote_percentage(const vector<int32> &voter_counts, int32 total_voter_count);
-
-  template <class StorerT>
-  void store_poll(PollId poll_id, StorerT &storer) const;
-
-  template <class ParserT>
-  PollId parse_poll(ParserT &parser);
-
- private:
-  struct PollOption {
-    FormattedText text_;
-    string data_;
-    int32 voter_count_ = 0;
-    bool is_chosen_ = false;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct Poll {
-    FormattedText question_;
-    vector<PollOption> options_;
-    vector<DialogId> recent_voter_dialog_ids_;
-    vector<std::pair<ChannelId, MinChannel>> recent_voter_min_channels_;
-    FormattedText explanation_;
-    int32 total_voter_count_ = 0;
-    int32 correct_option_id_ = -1;
-    int32 open_period_ = 0;
-    int32 close_date_ = 0;
-    bool is_anonymous_ = true;
-    bool allow_multiple_answers_ = false;
-    bool is_quiz_ = false;
-    bool is_closed_ = false;
-    bool is_updated_after_close_ = false;
-    mutable bool was_saved_ = false;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct PollOptionVoters {
-    vector<DialogId> voter_dialog_ids_;
-    string next_offset_;
-    vector<Promise<td_api::object_ptr<td_api::messageSenders>>> pending_queries_;
-    bool was_invalidated_ = false;  // the list needs to be invalidated when voters are changed
-  };
-
-  static constexpr int32 MAX_GET_POLL_VOTERS = 50;  // server side limit
-  static constexpr int32 UNLOAD_POLL_DELAY = 600;   // some reasonable value
-
-  class SetPollAnswerLogEvent;
-  class StopPollLogEvent;
-
-  void start_up() final;
-  void tear_down() final;
-
-  static void on_update_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int);
-
-  static void on_close_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int);
-
-  static void on_unload_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int);
-
-  static void remove_unallowed_entities(FormattedText &text);
-
-  static td_api::object_ptr<td_api::pollOption> get_poll_option_object(const PollOption &poll_option);
-
-  static telegram_api::object_ptr<telegram_api::pollAnswer> get_input_poll_option(const PollOption &poll_option);
-
-  static vector<PollOption> get_poll_options(vector<tl_object_ptr<telegram_api::pollAnswer>> &&poll_options);
-
-  bool have_poll(PollId poll_id) const;
-
-  bool have_poll_force(PollId poll_id);
-
-  const Poll *get_poll(PollId poll_id) const;
-
-  const Poll *get_poll(PollId poll_id);
-
-  Poll *get_poll_editable(PollId poll_id);
-
-  bool can_unload_poll(PollId poll_id);
-
-  void schedule_poll_unload(PollId poll_id);
-
-  void notify_on_poll_update(PollId poll_id);
-
-  static string get_poll_database_key(PollId poll_id);
-
-  static void save_poll(const Poll *poll, PollId poll_id);
-
-  void on_load_poll_from_database(PollId poll_id, string value);
-
-  double get_polling_timeout() const;
-
-  void on_update_poll_timeout(PollId poll_id);
-
-  void on_close_poll_timeout(PollId poll_id);
-
-  void on_unload_poll_timeout(PollId poll_id);
-
-  void on_online();
-
-  Poll *get_poll_force(PollId poll_id);
-
-  td_api::object_ptr<td_api::poll> get_poll_object(PollId poll_id, const Poll *poll) const;
-
-  void on_get_poll_results(PollId poll_id, uint64 generation, Result<tl_object_ptr<telegram_api::Updates>> result);
-
-  void do_set_poll_answer(PollId poll_id, MessageFullId message_full_id, vector<string> &&options, uint64 log_event_id,
-                          Promise<Unit> &&promise);
-
-  void on_set_poll_answer(PollId poll_id, uint64 generation, Result<tl_object_ptr<telegram_api::Updates>> &&result);
-
-  void on_set_poll_answer_finished(PollId poll_id, Result<Unit> &&result, uint64 generation);
-
-  void invalidate_poll_voters(const Poll *poll, PollId poll_id);
-
-  void invalidate_poll_option_voters(const Poll *poll, PollId poll_id, size_t option_index);
-
-  PollOptionVoters &get_poll_option_voters(const Poll *poll, PollId poll_id, int32 option_id);
-
-  td_api::object_ptr<td_api::messageSenders> get_poll_voters_object(int32 total_count,
-                                                                    const vector<DialogId> &voter_dialog_ids) const;
-
-  void on_get_poll_voters(PollId poll_id, int32 option_id, string offset, int32 limit,
-                          Result<tl_object_ptr<telegram_api::messages_votesList>> &&result);
-
-  void do_stop_poll(PollId poll_id, MessageFullId message_full_id, unique_ptr<ReplyMarkup> &&reply_markup,
-                    uint64 log_event_id, Promise<Unit> &&promise);
-
-  void on_stop_poll_finished(PollId poll_id, MessageFullId message_full_id, uint64 log_event_id, Result<Unit> &&result,
-                             Promise<Unit> &&promise);
-
-  void forget_local_poll(PollId poll_id);
-
-  MultiTimeout update_poll_timeout_{"UpdatePollTimeout"};
-  MultiTimeout close_poll_timeout_{"ClosePollTimeout"};
-  MultiTimeout unload_poll_timeout_{"UnloadPollTimeout"};
-
-  WaitFreeHashMap<PollId, unique_ptr<Poll>, PollIdHash> polls_;
-
-  WaitFreeHashMap<PollId, WaitFreeHashSet<MessageFullId, MessageFullIdHash>, PollIdHash> server_poll_messages_;
-  WaitFreeHashMap<PollId, WaitFreeHashSet<MessageFullId, MessageFullIdHash>, PollIdHash> other_poll_messages_;
-
-  WaitFreeHashMap<PollId, int32, PollIdHash> reply_poll_counts_;
-
-  struct PendingPollAnswer {
-    vector<string> options_;
-    vector<Promise<Unit>> promises_;
-    uint64 generation_ = 0;
-    uint64 log_event_id_ = 0;
-    NetQueryRef query_ref_;
-    bool is_finished_ = false;
-  };
-  FlatHashMap<PollId, PendingPollAnswer, PollIdHash> pending_answers_;
-
-  FlatHashMap<PollId, vector<PollOptionVoters>, PollIdHash> poll_voters_;
-
-  int64 current_local_poll_id_ = 0;
-
-  uint64 current_generation_ = 0;
-
-  FlatHashSet<PollId, PollIdHash> loaded_from_database_polls_;
-
-  FlatHashSet<PollId, PollIdHash> being_closed_polls_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PollManager.hpp b/third-party/td/td/td/telegram/PollManager.hpp
deleted file mode 100644
index 0f306d47d6..0000000000
--- a/third-party/td/td/td/telegram/PollManager.hpp
+++ /dev/null
@@ -1,296 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.hpp"
-#include "td/telegram/MinChannel.hpp"
-#include "td/telegram/PollManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void PollManager::PollOption::store(StorerT &storer) const {
-  using ::td::store;
-  bool has_entities = !text_.entities.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_chosen_);
-  STORE_FLAG(has_entities);
-  END_STORE_FLAGS();
-
-  store(text_.text, storer);
-  store(data_, storer);
-  store(voter_count_, storer);
-  if (has_entities) {
-    store(text_.entities, storer);
-  }
-}
-
-template <class ParserT>
-void PollManager::PollOption::parse(ParserT &parser) {
-  using ::td::parse;
-  bool has_entities;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_chosen_);
-  PARSE_FLAG(has_entities);
-  END_PARSE_FLAGS();
-
-  parse(text_.text, parser);
-  parse(data_, parser);
-  parse(voter_count_, parser);
-  if (has_entities) {
-    parse(text_.entities, parser);
-  }
-}
-
-template <class StorerT>
-void PollManager::Poll::store(StorerT &storer) const {
-  using ::td::store;
-  bool is_public = !is_anonymous_;
-  bool has_open_period = open_period_ != 0;
-  bool has_close_date = close_date_ != 0;
-  bool has_explanation = !explanation_.text.empty();
-  bool has_recent_voter_dialog_ids = !recent_voter_dialog_ids_.empty();
-  bool has_recent_voter_min_channels = !recent_voter_min_channels_.empty();
-  bool has_question_entities = !question_.entities.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_closed_);
-  STORE_FLAG(is_public);
-  STORE_FLAG(allow_multiple_answers_);
-  STORE_FLAG(is_quiz_);
-  STORE_FLAG(false);
-  STORE_FLAG(has_open_period);
-  STORE_FLAG(has_close_date);
-  STORE_FLAG(has_explanation);
-  STORE_FLAG(is_updated_after_close_);
-  STORE_FLAG(has_recent_voter_dialog_ids);
-  STORE_FLAG(has_recent_voter_min_channels);
-  STORE_FLAG(has_question_entities);
-  END_STORE_FLAGS();
-
-  store(question_.text, storer);
-  store(options_, storer);
-  store(total_voter_count_, storer);
-  if (is_quiz_) {
-    store(correct_option_id_, storer);
-  }
-  if (has_open_period) {
-    store(open_period_, storer);
-  }
-  if (has_close_date) {
-    store(close_date_, storer);
-  }
-  if (has_explanation) {
-    store(explanation_, storer);
-  }
-  if (has_recent_voter_dialog_ids) {
-    store(recent_voter_dialog_ids_, storer);
-  }
-  if (has_recent_voter_min_channels) {
-    store(recent_voter_min_channels_, storer);
-  }
-  if (has_question_entities) {
-    store(question_.entities, storer);
-  }
-}
-
-template <class ParserT>
-void PollManager::Poll::parse(ParserT &parser) {
-  using ::td::parse;
-  bool is_public;
-  bool has_recent_voter_user_ids;
-  bool has_open_period;
-  bool has_close_date;
-  bool has_explanation;
-  bool has_recent_voter_dialog_ids;
-  bool has_recent_voter_min_channels;
-  bool has_question_entities;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_closed_);
-  PARSE_FLAG(is_public);
-  PARSE_FLAG(allow_multiple_answers_);
-  PARSE_FLAG(is_quiz_);
-  PARSE_FLAG(has_recent_voter_user_ids);
-  PARSE_FLAG(has_open_period);
-  PARSE_FLAG(has_close_date);
-  PARSE_FLAG(has_explanation);
-  PARSE_FLAG(is_updated_after_close_);
-  PARSE_FLAG(has_recent_voter_dialog_ids);
-  PARSE_FLAG(has_recent_voter_min_channels);
-  PARSE_FLAG(has_question_entities);
-  END_PARSE_FLAGS();
-  is_anonymous_ = !is_public;
-
-  parse(question_.text, parser);
-  parse(options_, parser);
-  parse(total_voter_count_, parser);
-  if (is_quiz_) {
-    parse(correct_option_id_, parser);
-    if (correct_option_id_ < -1 || correct_option_id_ >= static_cast<int32>(options_.size())) {
-      parser.set_error("Wrong quiz correct_option_id");
-    }
-  }
-  if (has_recent_voter_user_ids) {
-    vector<UserId> recent_voter_user_ids;
-    parse(recent_voter_user_ids, parser);
-    recent_voter_dialog_ids_ = transform(recent_voter_user_ids, [](UserId user_id) { return DialogId(user_id); });
-  }
-  if (has_open_period) {
-    parse(open_period_, parser);
-  }
-  if (has_close_date) {
-    parse(close_date_, parser);
-  }
-  if (has_explanation) {
-    parse(explanation_, parser);
-  }
-  if (has_recent_voter_dialog_ids) {
-    parse(recent_voter_dialog_ids_, parser);
-  }
-  if (has_recent_voter_min_channels) {
-    parse(recent_voter_min_channels_, parser);
-  }
-  if (has_question_entities) {
-    parse(question_.entities, parser);
-  }
-}
-
-template <class StorerT>
-void PollManager::store_poll(PollId poll_id, StorerT &storer) const {
-  td::store(poll_id.get(), storer);
-  if (is_local_poll_id(poll_id)) {
-    auto poll = get_poll(poll_id);
-    CHECK(poll != nullptr);
-    bool has_open_period = poll->open_period_ != 0;
-    bool has_close_date = poll->close_date_ != 0;
-    bool has_explanation = !poll->explanation_.text.empty();
-    bool has_question_entities = !poll->question_.entities.empty();
-    bool has_option_entities =
-        any_of(poll->options_, [](const auto &option) { return !option.text_.entities.empty(); });
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(poll->is_closed_);
-    STORE_FLAG(poll->is_anonymous_);
-    STORE_FLAG(poll->allow_multiple_answers_);
-    STORE_FLAG(poll->is_quiz_);
-    STORE_FLAG(has_open_period);
-    STORE_FLAG(has_close_date);
-    STORE_FLAG(has_explanation);
-    STORE_FLAG(has_question_entities);
-    STORE_FLAG(has_option_entities);
-    END_STORE_FLAGS();
-    store(poll->question_.text, storer);
-    vector<string> options = transform(poll->options_, [](const PollOption &option) { return option.text_.text; });
-    store(options, storer);
-    if (poll->is_quiz_) {
-      store(poll->correct_option_id_, storer);
-    }
-    if (has_open_period) {
-      store(poll->open_period_, storer);
-    }
-    if (has_close_date) {
-      store(poll->close_date_, storer);
-    }
-    if (has_explanation) {
-      store(poll->explanation_, storer);
-    }
-    if (has_question_entities) {
-      store(poll->question_.entities, storer);
-    }
-    if (has_option_entities) {
-      auto option_entities = transform(poll->options_, [](const PollOption &option) { return option.text_.entities; });
-      store(option_entities, storer);
-    }
-  }
-}
-
-template <class ParserT>
-PollId PollManager::parse_poll(ParserT &parser) {
-  int64 poll_id_int;
-  td::parse(poll_id_int, parser);
-  PollId poll_id(poll_id_int);
-  if (is_local_poll_id(poll_id)) {
-    FormattedText question;
-    FormattedText explanation;
-    int32 open_period = 0;
-    int32 close_date = 0;
-    bool is_closed = false;
-    bool is_anonymous = true;
-    bool allow_multiple_answers = false;
-    bool is_quiz = false;
-    bool has_open_period = false;
-    bool has_close_date = false;
-    bool has_explanation = false;
-    bool has_question_entities = false;
-    bool has_option_entities = false;
-    int32 correct_option_id = -1;
-
-    if (parser.version() >= static_cast<int32>(Version::SupportPolls2_0)) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(is_closed);
-      PARSE_FLAG(is_anonymous);
-      PARSE_FLAG(allow_multiple_answers);
-      PARSE_FLAG(is_quiz);
-      PARSE_FLAG(has_open_period);
-      PARSE_FLAG(has_close_date);
-      PARSE_FLAG(has_explanation);
-      PARSE_FLAG(has_question_entities);
-      PARSE_FLAG(has_option_entities);
-      END_PARSE_FLAGS();
-    }
-    parse(question.text, parser);
-    vector<string> option_texts;
-    parse(option_texts, parser);
-    if (is_quiz) {
-      parse(correct_option_id, parser);
-      if (correct_option_id < -1 || correct_option_id >= static_cast<int32>(option_texts.size())) {
-        parser.set_error("Wrong local quiz correct_option_id");
-      }
-    }
-    if (has_open_period) {
-      parse(open_period, parser);
-    }
-    if (has_close_date) {
-      parse(close_date, parser);
-    }
-    if (has_explanation) {
-      parse(explanation, parser);
-    }
-    if (has_question_entities) {
-      parse(question.entities, parser);
-    }
-    vector<vector<MessageEntity>> option_entities;
-    if (has_option_entities) {
-      parse(option_entities, parser);
-      CHECK(option_entities.size() == option_texts.size());
-    } else {
-      option_entities.resize(option_texts.size());
-    }
-    vector<FormattedText> options;
-    for (size_t i = 0; i < option_texts.size(); i++) {
-      options.push_back({std::move(option_texts[i]), std::move(option_entities[i])});
-    }
-
-    if (parser.get_error() != nullptr) {
-      return PollId();
-    }
-    return create_poll(std::move(question), std::move(options), is_anonymous, allow_multiple_answers, is_quiz,
-                       correct_option_id, std::move(explanation), open_period, close_date, is_closed);
-  }
-
-  auto poll = get_poll_force(poll_id);
-  if (poll == nullptr) {
-    return PollId();
-  }
-  return poll_id;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Premium.cpp b/third-party/td/td/td/telegram/Premium.cpp
deleted file mode 100644
index 89f6c5e903..0000000000
--- a/third-party/td/td/td/telegram/Premium.cpp
+++ /dev/null
@@ -1,1413 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Premium.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/Application.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/GiveawayParameters.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/PremiumGiftOption.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-#include <algorithm>
-
-namespace td {
-
-static td_api::object_ptr<td_api::PremiumFeature> get_premium_feature_object(Slice premium_feature) {
-  if (premium_feature == "double_limits") {
-    return td_api::make_object<td_api::premiumFeatureIncreasedLimits>();
-  }
-  if (premium_feature == "more_upload") {
-    return td_api::make_object<td_api::premiumFeatureIncreasedUploadFileSize>();
-  }
-  if (premium_feature == "faster_download") {
-    return td_api::make_object<td_api::premiumFeatureImprovedDownloadSpeed>();
-  }
-  if (premium_feature == "voice_to_text") {
-    return td_api::make_object<td_api::premiumFeatureVoiceRecognition>();
-  }
-  if (premium_feature == "no_ads") {
-    return td_api::make_object<td_api::premiumFeatureDisabledAds>();
-  }
-  if (premium_feature == "unique_reactions" || premium_feature == "infinite_reactions") {
-    return td_api::make_object<td_api::premiumFeatureUniqueReactions>();
-  }
-  if (premium_feature == "premium_stickers") {
-    return td_api::make_object<td_api::premiumFeatureUniqueStickers>();
-  }
-  if (premium_feature == "animated_emoji") {
-    return td_api::make_object<td_api::premiumFeatureCustomEmoji>();
-  }
-  if (premium_feature == "advanced_chat_management") {
-    return td_api::make_object<td_api::premiumFeatureAdvancedChatManagement>();
-  }
-  if (premium_feature == "profile_badge") {
-    return td_api::make_object<td_api::premiumFeatureProfileBadge>();
-  }
-  if (premium_feature == "emoji_status") {
-    return td_api::make_object<td_api::premiumFeatureEmojiStatus>();
-  }
-  if (premium_feature == "animated_userpics") {
-    return td_api::make_object<td_api::premiumFeatureAnimatedProfilePhoto>();
-  }
-  if (premium_feature == "forum_topic_icon") {
-    return td_api::make_object<td_api::premiumFeatureForumTopicIcon>();
-  }
-  if (premium_feature == "app_icons") {
-    return td_api::make_object<td_api::premiumFeatureAppIcons>();
-  }
-  if (premium_feature == "translations") {
-    return td_api::make_object<td_api::premiumFeatureRealTimeChatTranslation>();
-  }
-  if (premium_feature == "stories") {
-    return td_api::make_object<td_api::premiumFeatureUpgradedStories>();
-  }
-  if (premium_feature == "channel_boost") {
-    return td_api::make_object<td_api::premiumFeatureChatBoost>();
-  }
-  if (premium_feature == "peer_colors") {
-    return td_api::make_object<td_api::premiumFeatureAccentColor>();
-  }
-  if (premium_feature == "wallpapers") {
-    return td_api::make_object<td_api::premiumFeatureBackgroundForBoth>();
-  }
-  if (premium_feature == "saved_tags") {
-    return td_api::make_object<td_api::premiumFeatureSavedMessagesTags>();
-  }
-  if (premium_feature == "message_privacy") {
-    return td_api::make_object<td_api::premiumFeatureMessagePrivacy>();
-  }
-  if (premium_feature == "last_seen") {
-    return td_api::make_object<td_api::premiumFeatureLastSeenTimes>();
-  }
-  if (premium_feature == "business") {
-    return td_api::make_object<td_api::premiumFeatureBusiness>();
-  }
-  if (premium_feature == "effects") {
-    return td_api::make_object<td_api::premiumFeatureMessageEffects>();
-  }
-  if (G()->is_test_dc()) {
-    LOG(ERROR) << "Receive unsupported premium feature " << premium_feature;
-  }
-  return nullptr;
-}
-
-static td_api::object_ptr<td_api::BusinessFeature> get_business_feature_object(Slice business_feature) {
-  if (business_feature == "business_location") {
-    return td_api::make_object<td_api::businessFeatureLocation>();
-  }
-  if (business_feature == "business_hours") {
-    return td_api::make_object<td_api::businessFeatureOpeningHours>();
-  }
-  if (business_feature == "quick_replies") {
-    return td_api::make_object<td_api::businessFeatureQuickReplies>();
-  }
-  if (business_feature == "greeting_message") {
-    return td_api::make_object<td_api::businessFeatureGreetingMessage>();
-  }
-  if (business_feature == "away_message") {
-    return td_api::make_object<td_api::businessFeatureAwayMessage>();
-  }
-  if (business_feature == "business_links") {
-    return td_api::make_object<td_api::businessFeatureAccountLinks>();
-  }
-  if (business_feature == "business_intro") {
-    return td_api::make_object<td_api::businessFeatureStartPage>();
-  }
-  if (business_feature == "business_bots") {
-    return td_api::make_object<td_api::businessFeatureBots>();
-  }
-  if (business_feature == "emoji_status") {
-    return td_api::make_object<td_api::businessFeatureEmojiStatus>();
-  }
-  if (business_feature == "folder_tags") {
-    return td_api::make_object<td_api::businessFeatureChatFolderTags>();
-  }
-  if (business_feature == "stories") {
-    return td_api::make_object<td_api::businessFeatureUpgradedStories>();
-  }
-  if (G()->is_test_dc()) {
-    LOG(ERROR) << "Receive unsupported business feature " << business_feature;
-  }
-  return nullptr;
-}
-
-Status check_payment_amount(string &currency, int64 amount) {
-  if (amount <= 0 || !check_currency_amount(amount)) {
-    return Status::Error(400, "Invalid amount of the currency specified");
-  }
-  if (!clean_input_string(currency)) {
-    return Status::Error(400, "Strings must be encoded in UTF-8");
-  }
-  return Status::OK();
-}
-
-Result<telegram_api::object_ptr<telegram_api::InputPeer>> get_boost_input_peer(Td *td, DialogId dialog_id) {
-  if (!td->dialog_manager_->have_dialog_force(dialog_id, "get_boost_input_peer")) {
-    return Status::Error(400, "Chat to boost not found");
-  }
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return Status::Error(400, "Can't boost the chat");
-  }
-  if (!td->chat_manager_->get_channel_status(dialog_id.get_channel_id()).is_administrator()) {
-    return Status::Error(400, "Not enough rights in the chat");
-  }
-  auto boost_input_peer = td->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-  CHECK(boost_input_peer != nullptr);
-  return std::move(boost_input_peer);
-}
-
-Result<telegram_api::object_ptr<telegram_api::textWithEntities>> get_premium_gift_text(
-    Td *td, td_api::object_ptr<td_api::formattedText> &&text) {
-  TRY_RESULT(message, get_formatted_text(td, td->dialog_manager_->get_my_dialog_id(), std::move(text), false, true,
-                                         true, false));
-  MessageQuote::remove_unallowed_quote_entities(message);
-  if (!message.text.empty()) {
-    return get_input_text_with_entities(td->user_manager_.get(), message, "get_premium_gift_text");
-  }
-  return nullptr;
-}
-
-static Result<tl_object_ptr<telegram_api::InputStorePaymentPurpose>> get_input_store_payment_purpose(
-    Td *td, td_api::object_ptr<td_api::StorePaymentPurpose> &purpose) {
-  if (purpose == nullptr) {
-    return Status::Error(400, "Purchase purpose must be non-empty");
-  }
-
-  switch (purpose->get_id()) {
-    case td_api::storePaymentPurposePremiumSubscription::ID: {
-      auto p = static_cast<td_api::storePaymentPurposePremiumSubscription *>(purpose.get());
-      return make_tl_object<telegram_api::inputStorePaymentPremiumSubscription>(0, p->is_restore_, p->is_upgrade_);
-    }
-    case td_api::storePaymentPurposePremiumGift::ID: {
-      auto p = static_cast<td_api::storePaymentPurposePremiumGift *>(purpose.get());
-      vector<telegram_api::object_ptr<telegram_api::InputUser>> input_users;
-      TRY_RESULT(input_user, td->user_manager_->get_input_user(UserId(p->user_id_)));
-      input_users.push_back(std::move(input_user));
-      TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-      TRY_RESULT(text, get_premium_gift_text(td, std::move(p->text_)));
-
-      int32 flags = 0;
-      if (text != nullptr) {
-        flags |= telegram_api::inputStorePaymentPremiumGiftCode::MESSAGE_MASK;
-      }
-      return telegram_api::make_object<telegram_api::inputStorePaymentPremiumGiftCode>(
-          flags, std::move(input_users), nullptr, p->currency_, p->amount_, std::move(text));
-    }
-    case td_api::storePaymentPurposePremiumGiftCodes::ID: {
-      auto p = static_cast<td_api::storePaymentPurposePremiumGiftCodes *>(purpose.get());
-      vector<telegram_api::object_ptr<telegram_api::InputUser>> input_users;
-      for (auto user_id : p->user_ids_) {
-        TRY_RESULT(input_user, td->user_manager_->get_input_user(UserId(user_id)));
-        input_users.push_back(std::move(input_user));
-      }
-      TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-      DialogId boosted_dialog_id(p->boosted_chat_id_);
-      TRY_RESULT(boost_input_peer, get_boost_input_peer(td, boosted_dialog_id));
-      TRY_RESULT(text, get_premium_gift_text(td, std::move(p->text_)));
-
-      int32 flags = telegram_api::inputStorePaymentPremiumGiftCode::BOOST_PEER_MASK;
-      if (text != nullptr) {
-        flags |= telegram_api::inputStorePaymentPremiumGiftCode::MESSAGE_MASK;
-      }
-      return telegram_api::make_object<telegram_api::inputStorePaymentPremiumGiftCode>(
-          flags, std::move(input_users), std::move(boost_input_peer), p->currency_, p->amount_, std::move(text));
-    }
-    case td_api::storePaymentPurposePremiumGiveaway::ID: {
-      auto p = static_cast<td_api::storePaymentPurposePremiumGiveaway *>(purpose.get());
-      TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-      TRY_RESULT(parameters, GiveawayParameters::get_giveaway_parameters(td, p->parameters_.get()));
-      return parameters.get_input_store_payment_premium_giveaway(td, p->currency_, p->amount_);
-    }
-    case td_api::storePaymentPurposeStarGiveaway::ID: {
-      auto p = static_cast<td_api::storePaymentPurposeStarGiveaway *>(purpose.get());
-      TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-      if (p->winner_count_ <= 0 || p->star_count_ <= 0) {
-        return Status::Error(400, "Invalid giveaway parameters specified");
-      }
-      TRY_RESULT(parameters, GiveawayParameters::get_giveaway_parameters(td, p->parameters_.get()));
-      return parameters.get_input_store_payment_stars_giveaway(td, p->currency_, p->amount_, p->winner_count_,
-                                                               p->star_count_);
-    }
-    case td_api::storePaymentPurposeStars::ID: {
-      auto p = static_cast<td_api::storePaymentPurposeStars *>(purpose.get());
-      TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-      dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::StarsSubscriptionLowBalance}, Promise<Unit>());
-      return telegram_api::make_object<telegram_api::inputStorePaymentStarsTopup>(p->star_count_, p->currency_,
-                                                                                  p->amount_);
-    }
-    case td_api::storePaymentPurposeGiftedStars::ID: {
-      auto p = static_cast<td_api::storePaymentPurposeGiftedStars *>(purpose.get());
-      UserId user_id(p->user_id_);
-      TRY_RESULT(input_user, td->user_manager_->get_input_user(user_id));
-      TRY_STATUS(check_payment_amount(p->currency_, p->amount_));
-      return telegram_api::make_object<telegram_api::inputStorePaymentStarsGift>(std::move(input_user), p->star_count_,
-                                                                                 p->currency_, p->amount_);
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-class GetPremiumPromoQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::premiumState>> promise_;
-
- public:
-  explicit GetPremiumPromoQuery(Promise<td_api::object_ptr<td_api::premiumState>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::help_getPremiumPromo()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getPremiumPromo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto promo = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPremiumPromoQuery: " << to_string(promo);
-
-    td_->user_manager_->on_get_users(std::move(promo->users_), "GetPremiumPromoQuery");
-
-    auto state = get_message_text(td_->user_manager_.get(), std::move(promo->status_text_),
-                                  std::move(promo->status_entities_), true, true, 0, false, "GetPremiumPromoQuery");
-
-    if (promo->video_sections_.size() != promo->videos_.size()) {
-      return on_error(Status::Error(500, "Receive wrong number of videos"));
-    }
-
-    vector<td_api::object_ptr<td_api::premiumFeaturePromotionAnimation>> animations;
-    vector<td_api::object_ptr<td_api::businessFeaturePromotionAnimation>> business_animations;
-    FlatHashSet<string> video_sections;
-    for (size_t i = 0; i < promo->video_sections_.size(); i++) {
-      if (promo->video_sections_[i].empty() || !video_sections.insert(promo->video_sections_[i]).second) {
-        LOG(ERROR) << "Receive duplicate Premium feature animation " << promo->video_sections_[i];
-        continue;
-      }
-
-      auto video = std::move(promo->videos_[i]);
-      if (video->get_id() != telegram_api::document::ID) {
-        LOG(ERROR) << "Receive " << to_string(video) << " for " << promo->video_sections_[i];
-        continue;
-      }
-
-      auto parsed_document = td_->documents_manager_->on_get_document(
-          move_tl_object_as<telegram_api::document>(video), DialogId(), false, nullptr, Document::Type::Animation);
-
-      if (parsed_document.type != Document::Type::Animation) {
-        LOG(ERROR) << "Receive " << parsed_document.type << " for " << promo->video_sections_[i];
-        continue;
-      }
-
-      auto feature = get_premium_feature_object(promo->video_sections_[i]);
-      if (feature != nullptr) {
-        auto animation_object = td_->animations_manager_->get_animation_object(parsed_document.file_id);
-        animations.push_back(td_api::make_object<td_api::premiumFeaturePromotionAnimation>(
-            std::move(feature), std::move(animation_object)));
-      } else {
-        auto business_feature = get_business_feature_object(promo->video_sections_[i]);
-        if (business_feature != nullptr) {
-          auto animation_object = td_->animations_manager_->get_animation_object(parsed_document.file_id);
-          business_animations.push_back(td_api::make_object<td_api::businessFeaturePromotionAnimation>(
-              std::move(business_feature), std::move(animation_object)));
-        } else if (G()->is_test_dc()) {
-          LOG(ERROR) << "Receive unsupported feature " << promo->video_sections_[i];
-        }
-      }
-    }
-
-    auto period_options = get_premium_gift_options(std::move(promo->period_options_));
-    promise_.set_value(
-        td_api::make_object<td_api::premiumState>(get_formatted_text_object(td_->user_manager_.get(), state, true, 0),
-                                                  get_premium_state_payment_options_object(period_options),
-                                                  std::move(animations), std::move(business_animations)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPremiumGiftOptionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::premiumGiftPaymentOptions>> promise_;
-
- public:
-  explicit GetPremiumGiftOptionsQuery(Promise<td_api::object_ptr<td_api::premiumGiftPaymentOptions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::payments_getPremiumGiftCodeOptions(0, nullptr)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPremiumGiftCodeOptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto results = result_ptr.move_as_ok();
-    td::remove_if(results, [](const telegram_api::object_ptr<telegram_api::premiumGiftCodeOption> &payment_option) {
-      return payment_option->users_ != 1 || payment_option->months_ <= 0 || payment_option->amount_ <= 0 ||
-             payment_option->currency_.empty() || payment_option->store_quantity_ > 1;
-    });
-    auto get_monthly_price = [](const telegram_api::object_ptr<telegram_api::premiumGiftCodeOption> &payment_option) {
-      return static_cast<double>(payment_option->amount_) / static_cast<double>(payment_option->months_);
-    };
-    FlatHashMap<string, double> max_prices;
-    FlatHashMap<int32, int64> star_prices;
-    for (auto &result : results) {
-      if (result->currency_ == "XTR") {
-        if (!star_prices.emplace(result->months_, StarManager::get_star_count(result->amount_)).second) {
-          LOG(ERROR) << "Receive duplicate Telegram Star price for " << result->months_;
-        }
-        continue;
-      }
-      auto &max_price = max_prices[result->currency_];
-      auto price = get_monthly_price(result);
-      if (price > max_price) {
-        max_price = price;
-      }
-    }
-
-    vector<td_api::object_ptr<td_api::premiumGiftPaymentOption>> options;
-    for (auto &result : results) {
-      if (result->currency_ == "XTR") {
-        continue;
-      }
-      double relative_price = get_monthly_price(result) / max_prices[result->currency_];
-      options.push_back(td_api::make_object<td_api::premiumGiftPaymentOption>(
-          result->currency_, result->amount_, star_prices[result->months_],
-          static_cast<int32>(100 * (1.0 - relative_price)), result->months_, result->store_product_,
-          td_->stickers_manager_->get_premium_gift_sticker_object(result->months_, 0)));
-    }
-    std::sort(options.begin(), options.end(),
-              [](const auto &lhs, const auto &rhs) { return lhs->month_count_ < rhs->month_count_; });
-    promise_.set_value(td_api::make_object<td_api::premiumGiftPaymentOptions>(std::move(options)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPremiumGiveawayOptionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::premiumGiveawayPaymentOptions>> promise_;
-  DialogId boosted_dialog_id_;
-
- public:
-  explicit GetPremiumGiveawayOptionsQuery(Promise<td_api::object_ptr<td_api::premiumGiveawayPaymentOptions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId boosted_dialog_id) {
-    auto r_boost_input_peer = get_boost_input_peer(td_, boosted_dialog_id);
-    if (r_boost_input_peer.is_error()) {
-      return on_error(r_boost_input_peer.move_as_error());
-    }
-    auto boost_input_peer = r_boost_input_peer.move_as_ok();
-
-    int32 flags = telegram_api::payments_getPremiumGiftCodeOptions::BOOST_PEER_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getPremiumGiftCodeOptions(flags, std::move(boost_input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPremiumGiftCodeOptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto results = result_ptr.move_as_ok();
-    td::remove_if(results, [](const telegram_api::object_ptr<telegram_api::premiumGiftCodeOption> &payment_option) {
-      return payment_option->users_ <= 0 || payment_option->months_ <= 0 || payment_option->amount_ <= 0 ||
-             payment_option->currency_.empty() || payment_option->currency_ == "XTR";
-    });
-
-    vector<td_api::object_ptr<td_api::premiumGiveawayPaymentOption>> options;
-    for (auto &result : results) {
-      if (result->store_product_.empty()) {
-        result->store_quantity_ = 0;
-      } else if (result->store_quantity_ <= 0) {
-        result->store_quantity_ = 1;
-      }
-      options.push_back(td_api::make_object<td_api::premiumGiveawayPaymentOption>(
-          result->currency_, result->amount_, result->users_, result->months_, result->store_product_,
-          result->store_quantity_));
-    }
-
-    promise_.set_value(td_api::make_object<td_api::premiumGiveawayPaymentOptions>(std::move(options)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(boosted_dialog_id_, status, "GetPremiumGiveawayOptionsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CheckGiftCodeQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::premiumGiftCodeInfo>> promise_;
-
- public:
-  explicit CheckGiftCodeQuery(Promise<td_api::object_ptr<td_api::premiumGiftCodeInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &code) {
-    send_query(G()->net_query_creator().create(telegram_api::payments_checkGiftCode(code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_checkGiftCode>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for CheckGiftCodeQuery: " << to_string(result);
-    td_->user_manager_->on_get_users(std::move(result->users_), "CheckGiftCodeQuery");
-    td_->chat_manager_->on_get_chats(std::move(result->chats_), "CheckGiftCodeQuery");
-
-    if (result->date_ <= 0 || result->months_ <= 0 || result->used_date_ < 0) {
-      LOG(ERROR) << "Receive " << to_string(result);
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-
-    DialogId creator_dialog_id;
-    if (result->from_id_ != nullptr) {
-      creator_dialog_id = DialogId(result->from_id_);
-      if (!creator_dialog_id.is_valid() ||
-          !td_->dialog_manager_->have_dialog_info_force(creator_dialog_id, "CheckGiftCodeQuery")) {
-        LOG(ERROR) << "Receive " << to_string(result);
-        return on_error(Status::Error(500, "Receive invalid response"));
-      }
-      if (creator_dialog_id.get_type() != DialogType::User) {
-        td_->dialog_manager_->force_create_dialog(creator_dialog_id, "CheckGiftCodeQuery", true);
-      }
-    }
-    UserId user_id(result->to_id_);
-    if (!user_id.is_valid() && user_id != UserId()) {
-      LOG(ERROR) << "Receive " << to_string(result);
-      user_id = UserId();
-    }
-    MessageId message_id(ServerMessageId(result->giveaway_msg_id_));
-    if (!message_id.is_valid() && message_id != MessageId()) {
-      LOG(ERROR) << "Receive " << to_string(result);
-      message_id = MessageId();
-    }
-    if (message_id != MessageId() && creator_dialog_id.get_type() != DialogType::Channel) {
-      LOG(ERROR) << "Receive " << to_string(result);
-      message_id = MessageId();
-    }
-    promise_.set_value(td_api::make_object<td_api::premiumGiftCodeInfo>(
-        creator_dialog_id == DialogId() ? nullptr
-                                        : get_message_sender_object(td_, creator_dialog_id, "premiumGiftCodeInfo"),
-        result->date_, result->via_giveaway_, message_id.get(), result->months_,
-        td_->user_manager_->get_user_id_object(user_id, "premiumGiftCodeInfo"), result->used_date_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ApplyGiftCodeQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ApplyGiftCodeQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &code) {
-    send_query(G()->net_query_creator().create(telegram_api::payments_applyGiftCode(code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_applyGiftCode>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ApplyGiftCodeQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendPremiumGiftQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SendPremiumGiftQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputInvoice> input_invoice, int64 payment_form_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_sendStarsForm(payment_form_id, std::move(input_invoice))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_sendStarsForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendPremiumGiftQuery: " << to_string(payment_result);
-    switch (payment_result->get_id()) {
-      case telegram_api::payments_paymentResult::ID: {
-        auto result = telegram_api::move_object_as<telegram_api::payments_paymentResult>(payment_result);
-        td_->updates_manager_->on_get_updates(std::move(result->updates_), std::move(promise_));
-        break;
-      }
-      case telegram_api::payments_paymentVerificationNeeded::ID:
-        LOG(ERROR) << "Receive " << to_string(payment_result);
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "FORM_SUBMIT_DUPLICATE") {
-      LOG(ERROR) << "Receive FORM_SUBMIT_DUPLICATE";
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPremiumGiftPaymentFormQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int64 star_count_;
-  telegram_api::object_ptr<telegram_api::InputInvoice> send_input_invoice_;
-
- public:
-  explicit GetPremiumGiftPaymentFormQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputInvoice> input_invoice,
-            telegram_api::object_ptr<telegram_api::InputInvoice> send_input_invoice, int64 star_count) {
-    star_count_ = star_count;
-    send_input_invoice_ = std::move(send_input_invoice);
-    send_query(
-        G()->net_query_creator().create(telegram_api::payments_getPaymentForm(0, std::move(input_invoice), nullptr)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPaymentForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_form_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPremiumGiftPaymentFormQuery: " << to_string(payment_form_ptr);
-    switch (payment_form_ptr->get_id()) {
-      case telegram_api::payments_paymentForm::ID:
-      case telegram_api::payments_paymentFormStarGift::ID:
-        LOG(ERROR) << "Receive " << to_string(payment_form_ptr);
-        promise_.set_error(Status::Error(500, "Unsupported"));
-        break;
-      case telegram_api::payments_paymentFormStars::ID: {
-        auto payment_form = static_cast<const telegram_api::payments_paymentFormStars *>(payment_form_ptr.get());
-        if (payment_form->invoice_->prices_.size() != 1u ||
-            payment_form->invoice_->prices_[0]->amount_ != star_count_) {
-          return promise_.set_error(Status::Error(400, "Wrong purchase price specified"));
-        }
-        td_->create_handler<SendPremiumGiftQuery>(std::move(promise_))
-            ->send(std::move(send_input_invoice_), payment_form->form_id_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class LaunchPrepaidGiveawayQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit LaunchPrepaidGiveawayQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 giveaway_id, const GiveawayParameters &parameters, int32 user_count, int64 star_count) {
-    auto dialog_id = parameters.get_boosted_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    telegram_api::object_ptr<telegram_api::InputStorePaymentPurpose> purpose;
-    if (star_count == 0) {
-      purpose = parameters.get_input_store_payment_premium_giveaway(td_, string(), 0);
-    } else {
-      purpose = parameters.get_input_store_payment_stars_giveaway(td_, string(), 12345, user_count, star_count);
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_launchPrepaidGiveaway(std::move(input_peer), giveaway_id, std::move(purpose))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_launchPrepaidGiveaway>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for LaunchPrepaidGiveawayQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGiveawayInfoQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::GiveawayInfo>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetGiveawayInfoQuery(Promise<td_api::object_ptr<td_api::GiveawayInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, ServerMessageId server_message_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getGiveawayInfo(std::move(input_peer), server_message_id.get())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getGiveawayInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetGiveawayInfoQuery: " << to_string(ptr);
-    switch (ptr->get_id()) {
-      case telegram_api::payments_giveawayInfo::ID: {
-        auto info = telegram_api::move_object_as<telegram_api::payments_giveawayInfo>(ptr);
-        auto status = [&]() -> td_api::object_ptr<td_api::GiveawayParticipantStatus> {
-          if (info->joined_too_early_date_ > 0) {
-            return td_api::make_object<td_api::giveawayParticipantStatusAlreadyWasMember>(info->joined_too_early_date_);
-          }
-          if (info->admin_disallowed_chat_id_ > 0) {
-            ChannelId channel_id(info->admin_disallowed_chat_id_);
-            if (!channel_id.is_valid() || !td_->chat_manager_->have_channel_force(channel_id, "GetGiveawayInfoQuery")) {
-              LOG(ERROR) << "Receive " << to_string(info);
-            } else {
-              DialogId dialog_id(channel_id);
-              td_->dialog_manager_->force_create_dialog(dialog_id, "GetGiveawayInfoQuery");
-              return td_api::make_object<td_api::giveawayParticipantStatusAdministrator>(
-                  td_->dialog_manager_->get_chat_id_object(dialog_id, "giveawayParticipantStatusAdministrator"));
-            }
-          }
-          if (!info->disallowed_country_.empty()) {
-            return td_api::make_object<td_api::giveawayParticipantStatusDisallowedCountry>(info->disallowed_country_);
-          }
-          if (info->participating_) {
-            return td_api::make_object<td_api::giveawayParticipantStatusParticipating>();
-          }
-          return td_api::make_object<td_api::giveawayParticipantStatusEligible>();
-        }();
-        promise_.set_value(td_api::make_object<td_api::giveawayInfoOngoing>(
-            max(0, info->start_date_), std::move(status), info->preparing_results_));
-        break;
-      }
-      case telegram_api::payments_giveawayInfoResults::ID: {
-        auto info = telegram_api::move_object_as<telegram_api::payments_giveawayInfoResults>(ptr);
-        auto winner_count = info->winners_count_;
-        auto activated_count = info->activated_count_;
-        if (activated_count < 0 || activated_count > winner_count) {
-          LOG(ERROR) << "Receive " << to_string(info);
-          if (activated_count < 0) {
-            activated_count = 0;
-          }
-          if (winner_count < 0) {
-            winner_count = 0;
-          }
-          if (activated_count > winner_count) {
-            activated_count = winner_count;
-          }
-        }
-        promise_.set_value(td_api::make_object<td_api::giveawayInfoCompleted>(
-            max(0, info->start_date_), max(0, info->finish_date_), info->refunded_, info->winner_, winner_count,
-            activated_count, info->gift_code_slug_, StarManager::get_star_count(info->stars_prize_)));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetGiveawayInfoQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CanPurchasePremiumQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit CanPurchasePremiumQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose) {
-    auto r_input_purpose = get_input_store_payment_purpose(td_, purpose);
-    if (r_input_purpose.is_error()) {
-      return on_error(r_input_purpose.move_as_error());
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::payments_canPurchaseStore(r_input_purpose.move_as_ok())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_canPurchaseStore>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Premium can't be purchased"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AssignAppStoreTransactionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit AssignAppStoreTransactionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &receipt, td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose) {
-    auto r_input_purpose = get_input_store_payment_purpose(td_, purpose);
-    if (r_input_purpose.is_error()) {
-      return on_error(r_input_purpose.move_as_error());
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_assignAppStoreTransaction(BufferSlice(receipt), r_input_purpose.move_as_ok())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_assignAppStoreTransaction>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for AssignAppStoreTransactionQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AssignPlayMarketTransactionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit AssignPlayMarketTransactionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &package_name, const string &store_product_id, const string &purchase_token,
-            td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose) {
-    auto r_input_purpose = get_input_store_payment_purpose(td_, purpose);
-    if (r_input_purpose.is_error()) {
-      return on_error(r_input_purpose.move_as_error());
-    }
-    auto receipt = make_tl_object<telegram_api::dataJSON>(string());
-    receipt->data_ = json_encode<string>(json_object([&](auto &o) {
-      o("packageName", package_name);
-      o("purchaseToken", purchase_token);
-      o("productId", store_product_id);
-    }));
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_assignPlayMarketTransaction(std::move(receipt), r_input_purpose.move_as_ok())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_assignPlayMarketTransaction>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for AssignPlayMarketTransactionQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-const vector<Slice> &get_premium_limit_keys() {
-  static const vector<Slice> limit_keys{"channels",
-                                        "saved_gifs",
-                                        "stickers_faved",
-                                        "dialog_filters",
-                                        "dialog_filters_chats",
-                                        "dialogs_pinned",
-                                        "dialogs_folder_pinned",
-                                        "channels_public",
-                                        "caption_length",
-                                        "about_length",
-                                        "chatlist_invites",
-                                        "chatlists_joined",
-                                        "story_expiring",
-                                        "story_caption_length",
-                                        "stories_sent_weekly",
-                                        "stories_sent_monthly",
-                                        "stories_suggested_reactions",
-                                        "recommended_channels",
-                                        "saved_dialogs_pinned"};
-  return limit_keys;
-}
-
-static Slice get_limit_type_key(const td_api::PremiumLimitType *limit_type) {
-  CHECK(limit_type != nullptr);
-  switch (limit_type->get_id()) {
-    case td_api::premiumLimitTypeSupergroupCount::ID:
-      return Slice("channels");
-    case td_api::premiumLimitTypeSavedAnimationCount::ID:
-      return Slice("saved_gifs");
-    case td_api::premiumLimitTypeFavoriteStickerCount::ID:
-      return Slice("stickers_faved");
-    case td_api::premiumLimitTypeChatFolderCount::ID:
-      return Slice("dialog_filters");
-    case td_api::premiumLimitTypeChatFolderChosenChatCount::ID:
-      return Slice("dialog_filters_chats");
-    case td_api::premiumLimitTypePinnedChatCount::ID:
-      return Slice("dialogs_pinned");
-    case td_api::premiumLimitTypePinnedArchivedChatCount::ID:
-      return Slice("dialogs_folder_pinned");
-    case td_api::premiumLimitTypePinnedSavedMessagesTopicCount::ID:
-      return Slice("saved_dialogs_pinned");
-    case td_api::premiumLimitTypeCreatedPublicChatCount::ID:
-      return Slice("channels_public");
-    case td_api::premiumLimitTypeCaptionLength::ID:
-      return Slice("caption_length");
-    case td_api::premiumLimitTypeBioLength::ID:
-      return Slice("about_length");
-    case td_api::premiumLimitTypeChatFolderInviteLinkCount::ID:
-      return Slice("chatlist_invites");
-    case td_api::premiumLimitTypeShareableChatFolderCount::ID:
-      return Slice("chatlists_joined");
-    case td_api::premiumLimitTypeActiveStoryCount::ID:
-      return Slice("story_expiring");
-    case td_api::premiumLimitTypeStoryCaptionLength::ID:
-      return Slice("story_caption_length");
-    case td_api::premiumLimitTypeWeeklySentStoryCount::ID:
-      return Slice("stories_sent_weekly");
-    case td_api::premiumLimitTypeMonthlySentStoryCount::ID:
-      return Slice("stories_sent_monthly");
-    case td_api::premiumLimitTypeStorySuggestedReactionAreaCount::ID:
-      return Slice("stories_suggested_reactions");
-    case td_api::premiumLimitTypeSimilarChatCount::ID:
-      return Slice("recommended_channels");
-    default:
-      UNREACHABLE();
-      return Slice();
-  }
-}
-
-static string get_premium_source(const td_api::PremiumLimitType *limit_type) {
-  if (limit_type == nullptr) {
-    return string();
-  }
-
-  return PSTRING() << "double_limits__" << get_limit_type_key(limit_type);
-}
-
-static string get_premium_source(const td_api::PremiumFeature *feature) {
-  if (feature == nullptr) {
-    return string();
-  }
-
-  switch (feature->get_id()) {
-    case td_api::premiumFeatureIncreasedLimits::ID:
-      return "double_limits";
-    case td_api::premiumFeatureIncreasedUploadFileSize::ID:
-      return "more_upload";
-    case td_api::premiumFeatureImprovedDownloadSpeed::ID:
-      return "faster_download";
-    case td_api::premiumFeatureVoiceRecognition::ID:
-      return "voice_to_text";
-    case td_api::premiumFeatureDisabledAds::ID:
-      return "no_ads";
-    case td_api::premiumFeatureUniqueReactions::ID:
-      return "infinite_reactions";
-    case td_api::premiumFeatureUniqueStickers::ID:
-      return "premium_stickers";
-    case td_api::premiumFeatureCustomEmoji::ID:
-      return "animated_emoji";
-    case td_api::premiumFeatureAdvancedChatManagement::ID:
-      return "advanced_chat_management";
-    case td_api::premiumFeatureProfileBadge::ID:
-      return "profile_badge";
-    case td_api::premiumFeatureEmojiStatus::ID:
-      return "emoji_status";
-    case td_api::premiumFeatureAnimatedProfilePhoto::ID:
-      return "animated_userpics";
-    case td_api::premiumFeatureForumTopicIcon::ID:
-      return "forum_topic_icon";
-    case td_api::premiumFeatureAppIcons::ID:
-      return "app_icons";
-    case td_api::premiumFeatureRealTimeChatTranslation::ID:
-      return "translations";
-    case td_api::premiumFeatureUpgradedStories::ID:
-      return "stories";
-    case td_api::premiumFeatureChatBoost::ID:
-      return "channel_boost";
-    case td_api::premiumFeatureAccentColor::ID:
-      return "peer_colors";
-    case td_api::premiumFeatureBackgroundForBoth::ID:
-      return "wallpapers";
-    case td_api::premiumFeatureSavedMessagesTags::ID:
-      return "saved_tags";
-    case td_api::premiumFeatureMessagePrivacy::ID:
-      return "message_privacy";
-    case td_api::premiumFeatureLastSeenTimes::ID:
-      return "last_seen";
-    case td_api::premiumFeatureBusiness::ID:
-      return "business";
-    case td_api::premiumFeatureMessageEffects::ID:
-      return "effects";
-    default:
-      UNREACHABLE();
-  }
-  return string();
-}
-
-static string get_premium_source(const td_api::BusinessFeature *feature) {
-  if (feature == nullptr) {
-    return "business";
-  }
-
-  switch (feature->get_id()) {
-    case td_api::businessFeatureLocation::ID:
-      return "business_location";
-    case td_api::businessFeatureOpeningHours::ID:
-      return "business_hours";
-    case td_api::businessFeatureQuickReplies::ID:
-      return "quick_replies";
-    case td_api::businessFeatureGreetingMessage::ID:
-      return "greeting_message";
-    case td_api::businessFeatureAwayMessage::ID:
-      return "away_message";
-    case td_api::businessFeatureAccountLinks::ID:
-      return "business_links";
-    case td_api::businessFeatureStartPage::ID:
-      return "business_intro";
-    case td_api::businessFeatureBots::ID:
-      return "business_bots";
-    case td_api::businessFeatureEmojiStatus::ID:
-      return "emoji_status";
-    case td_api::businessFeatureChatFolderTags::ID:
-      return "folder_tags";
-    case td_api::businessFeatureUpgradedStories::ID:
-      return "stories";
-    default:
-      UNREACHABLE();
-  }
-  return string();
-}
-
-static string get_premium_source(const td_api::PremiumStoryFeature *feature) {
-  if (feature == nullptr) {
-    return string();
-  }
-
-  switch (feature->get_id()) {
-    case td_api::premiumStoryFeaturePriorityOrder::ID:
-      return "stories__priority_order";
-    case td_api::premiumStoryFeatureStealthMode::ID:
-      return "stories__stealth_mode";
-    case td_api::premiumStoryFeaturePermanentViewsHistory::ID:
-      return "stories__permanent_views_history";
-    case td_api::premiumStoryFeatureCustomExpirationDuration::ID:
-      return "stories__expiration_durations";
-    case td_api::premiumStoryFeatureSaveStories::ID:
-      return "stories__save_stories_to_gallery";
-    case td_api::premiumStoryFeatureLinksAndFormatting::ID:
-      return "stories__links_and_formatting";
-    case td_api::premiumStoryFeatureVideoQuality::ID:
-      return "stories__quality";
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-static string get_premium_source(const td_api::object_ptr<td_api::PremiumSource> &source) {
-  if (source == nullptr) {
-    return string();
-  }
-  switch (source->get_id()) {
-    case td_api::premiumSourceLimitExceeded::ID: {
-      auto *limit_type = static_cast<const td_api::premiumSourceLimitExceeded *>(source.get())->limit_type_.get();
-      return get_premium_source(limit_type);
-    }
-    case td_api::premiumSourceFeature::ID: {
-      auto *feature = static_cast<const td_api::premiumSourceFeature *>(source.get())->feature_.get();
-      return get_premium_source(feature);
-    }
-    case td_api::premiumSourceBusinessFeature::ID: {
-      auto *feature = static_cast<const td_api::premiumSourceBusinessFeature *>(source.get())->feature_.get();
-      return get_premium_source(feature);
-    }
-    case td_api::premiumSourceStoryFeature::ID: {
-      auto *feature = static_cast<const td_api::premiumSourceStoryFeature *>(source.get())->feature_.get();
-      return get_premium_source(feature);
-    }
-    case td_api::premiumSourceLink::ID: {
-      auto &referrer = static_cast<const td_api::premiumSourceLink *>(source.get())->referrer_;
-      if (referrer.empty()) {
-        return "deeplink";
-      }
-      return PSTRING() << "deeplink_" << referrer;
-    }
-    case td_api::premiumSourceSettings::ID:
-      return "settings";
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-static td_api::object_ptr<td_api::premiumLimit> get_premium_limit_object(Slice key) {
-  auto default_limit = static_cast<int32>(G()->get_option_integer(PSLICE() << key << "_limit_default"));
-  auto premium_limit = static_cast<int32>(G()->get_option_integer(PSLICE() << key << "_limit_premium"));
-  if (default_limit <= 0 || premium_limit <= default_limit) {
-    return nullptr;
-  }
-  auto type = [&]() -> td_api::object_ptr<td_api::PremiumLimitType> {
-    if (key == "channels") {
-      return td_api::make_object<td_api::premiumLimitTypeSupergroupCount>();
-    }
-    if (key == "saved_gifs") {
-      return td_api::make_object<td_api::premiumLimitTypeSavedAnimationCount>();
-    }
-    if (key == "stickers_faved") {
-      return td_api::make_object<td_api::premiumLimitTypeFavoriteStickerCount>();
-    }
-    if (key == "dialog_filters") {
-      return td_api::make_object<td_api::premiumLimitTypeChatFolderCount>();
-    }
-    if (key == "dialog_filters_chats") {
-      return td_api::make_object<td_api::premiumLimitTypeChatFolderChosenChatCount>();
-    }
-    if (key == "dialogs_pinned") {
-      return td_api::make_object<td_api::premiumLimitTypePinnedChatCount>();
-    }
-    if (key == "dialogs_folder_pinned") {
-      return td_api::make_object<td_api::premiumLimitTypePinnedArchivedChatCount>();
-    }
-    if (key == "saved_dialogs_pinned") {
-      return td_api::make_object<td_api::premiumLimitTypePinnedSavedMessagesTopicCount>();
-    }
-    if (key == "channels_public") {
-      return td_api::make_object<td_api::premiumLimitTypeCreatedPublicChatCount>();
-    }
-    if (key == "caption_length") {
-      return td_api::make_object<td_api::premiumLimitTypeCaptionLength>();
-    }
-    if (key == "about_length") {
-      return td_api::make_object<td_api::premiumLimitTypeBioLength>();
-    }
-    if (key == "chatlist_invites") {
-      return td_api::make_object<td_api::premiumLimitTypeChatFolderInviteLinkCount>();
-    }
-    if (key == "chatlists_joined") {
-      return td_api::make_object<td_api::premiumLimitTypeShareableChatFolderCount>();
-    }
-    if (key == "story_expiring") {
-      return td_api::make_object<td_api::premiumLimitTypeActiveStoryCount>();
-    }
-    if (key == "story_caption_length") {
-      return td_api::make_object<td_api::premiumLimitTypeStoryCaptionLength>();
-    }
-    if (key == "stories_sent_weekly") {
-      return td_api::make_object<td_api::premiumLimitTypeWeeklySentStoryCount>();
-    }
-    if (key == "stories_sent_monthly") {
-      return td_api::make_object<td_api::premiumLimitTypeMonthlySentStoryCount>();
-    }
-    if (key == "stories_suggested_reactions") {
-      return td_api::make_object<td_api::premiumLimitTypeStorySuggestedReactionAreaCount>();
-    }
-    if (key == "recommended_channels") {
-      return td_api::make_object<td_api::premiumLimitTypeSimilarChatCount>();
-    }
-    UNREACHABLE();
-    return nullptr;
-  }();
-  return td_api::make_object<td_api::premiumLimit>(std::move(type), default_limit, premium_limit);
-}
-
-void get_premium_limit(const td_api::object_ptr<td_api::PremiumLimitType> &limit_type,
-                       Promise<td_api::object_ptr<td_api::premiumLimit>> &&promise) {
-  if (limit_type == nullptr) {
-    return promise.set_error(Status::Error(400, "Limit type must be non-empty"));
-  }
-
-  promise.set_value(get_premium_limit_object(get_limit_type_key(limit_type.get())));
-}
-
-void get_premium_features(Td *td, const td_api::object_ptr<td_api::PremiumSource> &source,
-                          Promise<td_api::object_ptr<td_api::premiumFeatures>> &&promise) {
-  auto premium_features =
-      full_split(G()->get_option_string(
-                     "premium_features",
-                     "stories,more_upload,double_limits,last_seen,voice_to_text,faster_download,translations,animated_"
-                     "emoji,emoji_status,saved_tags,peer_colors,wallpapers,profile_badge,message_privacy,advanced_chat_"
-                     "management,no_ads,app_icons,infinite_reactions,animated_userpics,premium_stickers,effects"),
-                 ',');
-  vector<td_api::object_ptr<td_api::PremiumFeature>> features;
-  for (const auto &premium_feature : premium_features) {
-    auto feature = get_premium_feature_object(premium_feature);
-    if (feature != nullptr) {
-      features.push_back(std::move(feature));
-    }
-  }
-
-  auto limits = transform(get_premium_limit_keys(), get_premium_limit_object);
-  td::remove_if(limits, [](auto &limit) { return limit == nullptr; });
-
-  auto source_str = get_premium_source(source);
-  if (!source_str.empty()) {
-    vector<tl_object_ptr<telegram_api::jsonObjectValue>> data;
-    vector<tl_object_ptr<telegram_api::JSONValue>> promo_order;
-    for (const auto &premium_feature : premium_features) {
-      promo_order.push_back(make_tl_object<telegram_api::jsonString>(premium_feature));
-    }
-    data.push_back(make_tl_object<telegram_api::jsonObjectValue>(
-        "premium_promo_order", make_tl_object<telegram_api::jsonArray>(std::move(promo_order))));
-    data.push_back(
-        make_tl_object<telegram_api::jsonObjectValue>("source", make_tl_object<telegram_api::jsonString>(source_str)));
-    save_app_log(td, "premium.promo_screen_show", DialogId(), make_tl_object<telegram_api::jsonObject>(std::move(data)),
-                 Promise<Unit>());
-  }
-
-  td_api::object_ptr<td_api::InternalLinkType> payment_link;
-  auto premium_bot_username = G()->get_option_string("premium_bot_username");
-  if (!premium_bot_username.empty()) {
-    payment_link = td_api::make_object<td_api::internalLinkTypeBotStart>(premium_bot_username, source_str, true);
-  } else {
-    auto premium_invoice_slug = G()->get_option_string("premium_invoice_slug");
-    if (!premium_invoice_slug.empty()) {
-      payment_link = td_api::make_object<td_api::internalLinkTypeInvoice>(premium_invoice_slug);
-    }
-  }
-
-  promise.set_value(
-      td_api::make_object<td_api::premiumFeatures>(std::move(features), std::move(limits), std::move(payment_link)));
-}
-
-void get_business_features(Td *td, const td_api::object_ptr<td_api::BusinessFeature> &source,
-                           Promise<td_api::object_ptr<td_api::businessFeatures>> &&promise) {
-  auto business_features =
-      full_split(G()->get_option_string("business_features",
-                                        "business_location,business_hours,quick_replies,greeting_message,away_message,"
-                                        "business_links,business_intro,business_bots,emoji_status,folder_tags,stories"),
-                 ',');
-  vector<td_api::object_ptr<td_api::BusinessFeature>> features;
-  for (const auto &business_feature : business_features) {
-    auto feature = get_business_feature_object(business_feature);
-    if (feature != nullptr) {
-      features.push_back(std::move(feature));
-    }
-  }
-
-  auto source_str = get_premium_source(source.get());
-  if (!source_str.empty()) {
-    vector<telegram_api::object_ptr<telegram_api::jsonObjectValue>> data;
-    vector<telegram_api::object_ptr<telegram_api::JSONValue>> promo_order;
-    for (const auto &business_feature : business_features) {
-      promo_order.push_back(telegram_api::make_object<telegram_api::jsonString>(business_feature));
-    }
-    data.push_back(telegram_api::make_object<telegram_api::jsonObjectValue>(
-        "business_promo_order", telegram_api::make_object<telegram_api::jsonArray>(std::move(promo_order))));
-    data.push_back(telegram_api::make_object<telegram_api::jsonObjectValue>(
-        "source", telegram_api::make_object<telegram_api::jsonString>(source_str)));
-    save_app_log(td, "business.promo_screen_show", DialogId(),
-                 telegram_api::make_object<telegram_api::jsonObject>(std::move(data)), Promise<Unit>());
-  }
-
-  promise.set_value(td_api::make_object<td_api::businessFeatures>(std::move(features)));
-}
-
-void view_premium_feature(Td *td, const td_api::object_ptr<td_api::PremiumFeature> &feature, Promise<Unit> &&promise) {
-  auto source = get_premium_source(feature.get());
-  if (source.empty()) {
-    return promise.set_error(Status::Error(400, "Feature must be non-empty"));
-  }
-
-  vector<tl_object_ptr<telegram_api::jsonObjectValue>> data;
-  data.push_back(
-      make_tl_object<telegram_api::jsonObjectValue>("item", make_tl_object<telegram_api::jsonString>(source)));
-  save_app_log(td, "premium.promo_screen_tap", DialogId(), make_tl_object<telegram_api::jsonObject>(std::move(data)),
-               std::move(promise));
-}
-
-void click_premium_subscription_button(Td *td, Promise<Unit> &&promise) {
-  vector<tl_object_ptr<telegram_api::jsonObjectValue>> data;
-  save_app_log(td, "premium.promo_screen_accept", DialogId(), make_tl_object<telegram_api::jsonObject>(std::move(data)),
-               std::move(promise));
-}
-
-void get_premium_state(Td *td, Promise<td_api::object_ptr<td_api::premiumState>> &&promise) {
-  td->create_handler<GetPremiumPromoQuery>(std::move(promise))->send();
-}
-
-void get_premium_gift_payment_options(Td *td,
-                                      Promise<td_api::object_ptr<td_api::premiumGiftPaymentOptions>> &&promise) {
-  td->stickers_manager_->load_premium_gift_sticker_set(
-      PromiseCreator::lambda([td, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          TRY_STATUS_PROMISE(promise, G()->close_status());
-          td->create_handler<GetPremiumGiftOptionsQuery>(std::move(promise))->send();
-        }
-      }));
-}
-
-void get_premium_giveaway_options(Td *td, DialogId boosted_dialog_id,
-                                  Promise<td_api::object_ptr<td_api::premiumGiveawayPaymentOptions>> &&promise) {
-  td->create_handler<GetPremiumGiveawayOptionsQuery>(std::move(promise))->send(boosted_dialog_id);
-}
-
-void check_premium_gift_code(Td *td, const string &code,
-                             Promise<td_api::object_ptr<td_api::premiumGiftCodeInfo>> &&promise) {
-  td->create_handler<CheckGiftCodeQuery>(std::move(promise))->send(code);
-}
-
-void apply_premium_gift_code(Td *td, const string &code, Promise<Unit> &&promise) {
-  td->create_handler<ApplyGiftCodeQuery>(std::move(promise))->send(code);
-}
-
-void gift_premium_with_stars(Td *td, UserId user_id, int64 star_count, int32 month_count,
-                             td_api::object_ptr<td_api::formattedText> &&text, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td->user_manager_->get_input_user(user_id));
-  string currency = "XTR";
-  TRY_STATUS_PROMISE(promise, check_payment_amount(currency, star_count));
-  TRY_RESULT_PROMISE(promise, message, get_premium_gift_text(td, std::move(text)));
-
-  int32 flags = 0;
-  if (message != nullptr) {
-    flags |= telegram_api::inputInvoicePremiumGiftStars::MESSAGE_MASK;
-  }
-  auto input_invoice = telegram_api::make_object<telegram_api::inputInvoicePremiumGiftStars>(0, std::move(input_user),
-                                                                                             month_count, nullptr);
-  auto send_input_invoice = telegram_api::make_object<telegram_api::inputInvoicePremiumGiftStars>(
-      flags, td->user_manager_->get_input_user(user_id).move_as_ok(), month_count, std::move(message));
-
-  td->create_handler<GetPremiumGiftPaymentFormQuery>(std::move(promise))
-      ->send(std::move(input_invoice), std::move(send_input_invoice), star_count);
-}
-
-void launch_prepaid_premium_giveaway(Td *td, int64 giveaway_id,
-                                     td_api::object_ptr<td_api::giveawayParameters> &&parameters, int32 user_count,
-                                     int64 star_count, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, giveaway_parameters, GiveawayParameters::get_giveaway_parameters(td, parameters.get()));
-  td->create_handler<LaunchPrepaidGiveawayQuery>(std::move(promise))
-      ->send(giveaway_id, giveaway_parameters, user_count, star_count);
-}
-
-void get_premium_giveaway_info(Td *td, MessageFullId message_full_id,
-                               Promise<td_api::object_ptr<td_api::GiveawayInfo>> &&promise) {
-  TRY_RESULT_PROMISE(promise, server_message_id, td->messages_manager_->get_giveaway_message_id(message_full_id));
-  td->create_handler<GetGiveawayInfoQuery>(std::move(promise))
-      ->send(message_full_id.get_dialog_id(), server_message_id);
-}
-
-void can_purchase_premium(Td *td, td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose, Promise<Unit> &&promise) {
-  td->create_handler<CanPurchasePremiumQuery>(std::move(promise))->send(std::move(purpose));
-}
-
-void assign_app_store_transaction(Td *td, const string &receipt,
-                                  td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose, Promise<Unit> &&promise) {
-  if (purpose != nullptr && purpose->get_id() == td_api::storePaymentPurposePremiumSubscription::ID) {
-    dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::UpgradePremium}, Promise<Unit>());
-    dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::SubscribeToAnnualPremium}, Promise<Unit>());
-    dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::RestorePremium}, Promise<Unit>());
-  }
-  td->create_handler<AssignAppStoreTransactionQuery>(std::move(promise))->send(receipt, std::move(purpose));
-}
-
-void assign_play_market_transaction(Td *td, const string &package_name, const string &store_product_id,
-                                    const string &purchase_token,
-                                    td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose,
-                                    Promise<Unit> &&promise) {
-  if (purpose != nullptr && purpose->get_id() == td_api::storePaymentPurposePremiumSubscription::ID) {
-    dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::UpgradePremium}, Promise<Unit>());
-    dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::SubscribeToAnnualPremium}, Promise<Unit>());
-    dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::RestorePremium}, Promise<Unit>());
-  }
-  td->create_handler<AssignPlayMarketTransactionQuery>(std::move(promise))
-      ->send(package_name, store_product_id, purchase_token, std::move(purpose));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Premium.h b/third-party/td/td/td/telegram/Premium.h
deleted file mode 100644
index 42a0e02e31..0000000000
--- a/third-party/td/td/td/telegram/Premium.h
+++ /dev/null
@@ -1,77 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-Status check_payment_amount(string &currency, int64 amount);
-
-Result<telegram_api::object_ptr<telegram_api::InputPeer>> get_boost_input_peer(Td *td, DialogId dialog_id);
-
-Result<telegram_api::object_ptr<telegram_api::textWithEntities>> get_premium_gift_text(
-    Td *td, td_api::object_ptr<td_api::formattedText> &&text);
-
-const vector<Slice> &get_premium_limit_keys();
-
-void get_premium_limit(const td_api::object_ptr<td_api::PremiumLimitType> &limit_type,
-                       Promise<td_api::object_ptr<td_api::premiumLimit>> &&promise);
-
-void get_premium_features(Td *td, const td_api::object_ptr<td_api::PremiumSource> &source,
-                          Promise<td_api::object_ptr<td_api::premiumFeatures>> &&promise);
-
-void get_business_features(Td *td, const td_api::object_ptr<td_api::BusinessFeature> &source,
-                           Promise<td_api::object_ptr<td_api::businessFeatures>> &&promise);
-
-void view_premium_feature(Td *td, const td_api::object_ptr<td_api::PremiumFeature> &feature, Promise<Unit> &&promise);
-
-void click_premium_subscription_button(Td *td, Promise<Unit> &&promise);
-
-void get_premium_state(Td *td, Promise<td_api::object_ptr<td_api::premiumState>> &&promise);
-
-void get_premium_gift_payment_options(Td *td, Promise<td_api::object_ptr<td_api::premiumGiftPaymentOptions>> &&promise);
-
-void get_premium_giveaway_options(Td *td, DialogId boosted_dialog_id,
-                                  Promise<td_api::object_ptr<td_api::premiumGiveawayPaymentOptions>> &&promise);
-
-void check_premium_gift_code(Td *td, const string &code,
-                             Promise<td_api::object_ptr<td_api::premiumGiftCodeInfo>> &&promise);
-
-void apply_premium_gift_code(Td *td, const string &code, Promise<Unit> &&promise);
-
-void gift_premium_with_stars(Td *td, UserId user_id, int64 star_count, int32 month_count,
-                             td_api::object_ptr<td_api::formattedText> &&text, Promise<Unit> &&promise);
-
-void launch_prepaid_premium_giveaway(Td *td, int64 giveaway_id,
-                                     td_api::object_ptr<td_api::giveawayParameters> &&parameters, int32 user_count,
-                                     int64 star_count, Promise<Unit> &&promise);
-
-void get_premium_giveaway_info(Td *td, MessageFullId message_full_id,
-                               Promise<td_api::object_ptr<td_api::GiveawayInfo>> &&promise);
-
-void can_purchase_premium(Td *td, td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose, Promise<Unit> &&promise);
-
-void assign_app_store_transaction(Td *td, const string &receipt,
-                                  td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose, Promise<Unit> &&promise);
-
-void assign_play_market_transaction(Td *td, const string &package_name, const string &store_product_id,
-                                    const string &purchase_token,
-                                    td_api::object_ptr<td_api::StorePaymentPurpose> &&purpose, Promise<Unit> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PremiumGiftOption.cpp b/third-party/td/td/td/telegram/PremiumGiftOption.cpp
deleted file mode 100644
index 1390ad7619..0000000000
--- a/third-party/td/td/td/telegram/PremiumGiftOption.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PremiumGiftOption.h"
-
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/misc.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-#include <algorithm>
-#include <tuple>
-
-namespace td {
-
-PremiumGiftOption::PremiumGiftOption(telegram_api::object_ptr<telegram_api::premiumSubscriptionOption> &&option)
-    : months_(option->months_)
-    , is_current_(option->current_)
-    , is_upgrade_(option->can_purchase_upgrade_)
-    , currency_(std::move(option->currency_))
-    , amount_(option->amount_)
-    , bot_url_(std::move(option->bot_url_))
-    , store_product_(std::move(option->store_product_))
-    , transaction_(std::move(option->transaction_)) {
-}
-
-bool PremiumGiftOption::is_valid() const {
-  if (amount_ <= 0 || !check_currency_amount(amount_)) {
-    LOG(ERROR) << "Receive invalid premium payment option amount " << amount_;
-    return false;
-  }
-  if (currency_.size() != 3) {
-    LOG(ERROR) << "Receive invalid premium payment option currency " << currency_;
-    return false;
-  }
-  return true;
-}
-
-double PremiumGiftOption::get_monthly_price() const {
-  return static_cast<double>(amount_) / static_cast<double>(months_);
-}
-
-td_api::object_ptr<td_api::premiumPaymentOption> PremiumGiftOption::get_premium_payment_option_object(
-    const PremiumGiftOption &base_option) const {
-  auto link_type = LinkManager::parse_internal_link(bot_url_, true);
-  int32 discount_percentage = 0;
-  if (base_option.months_ > 0 && months_ > 0 && base_option.amount_ > 0 && amount_ > 0) {
-    double relative_price = get_monthly_price() / base_option.get_monthly_price();
-    if (relative_price < 1.0) {
-      discount_percentage = static_cast<int32>(100 * (1.0 - relative_price));
-    }
-  }
-  return td_api::make_object<td_api::premiumPaymentOption>(
-      currency_, amount_, discount_percentage, months_, store_product_,
-      link_type == nullptr ? nullptr : link_type->get_internal_link_type_object());
-}
-
-td_api::object_ptr<td_api::premiumStatePaymentOption> PremiumGiftOption::get_premium_state_payment_option_object(
-    const PremiumGiftOption &base_option) const {
-  return td_api::make_object<td_api::premiumStatePaymentOption>(get_premium_payment_option_object(base_option),
-                                                                is_current_, is_upgrade_, transaction_);
-}
-
-bool operator<(const PremiumGiftOption &lhs, const PremiumGiftOption &rhs) {
-  return std::tie(lhs.months_, lhs.amount_, lhs.currency_, lhs.store_product_, lhs.bot_url_) <
-         std::tie(rhs.months_, rhs.amount_, rhs.currency_, rhs.store_product_, rhs.bot_url_);
-}
-
-bool operator==(const PremiumGiftOption &lhs, const PremiumGiftOption &rhs) {
-  return lhs.months_ == rhs.months_ && lhs.currency_ == rhs.currency_ && lhs.amount_ == rhs.amount_ &&
-         lhs.bot_url_ == rhs.bot_url_ && lhs.store_product_ == rhs.store_product_;
-}
-
-bool operator!=(const PremiumGiftOption &lhs, const PremiumGiftOption &rhs) {
-  return !(lhs == rhs);
-}
-
-vector<PremiumGiftOption> get_premium_gift_options(
-    vector<telegram_api::object_ptr<telegram_api::premiumSubscriptionOption>> &&options) {
-  auto premium_gift_options = transform(
-      std::move(options), [](auto &&premium_gift_option) { return PremiumGiftOption(std::move(premium_gift_option)); });
-  td::remove_if(premium_gift_options, [](const auto &premium_gift_option) { return !premium_gift_option.is_valid(); });
-  return premium_gift_options;
-}
-
-vector<td_api::object_ptr<td_api::premiumStatePaymentOption>> get_premium_state_payment_options_object(
-    const vector<PremiumGiftOption> &options) {
-  if (options.empty()) {
-    return {};
-  }
-  auto base_premium_option_it = std::min_element(options.begin(), options.end());
-  return transform(options, [&base_premium_option_it](const auto &option) {
-    return option.get_premium_state_payment_option_object(*base_premium_option_it);
-  });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PremiumGiftOption.h b/third-party/td/td/td/telegram/PremiumGiftOption.h
deleted file mode 100644
index be9d532f6e..0000000000
--- a/third-party/td/td/td/telegram/PremiumGiftOption.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class PremiumGiftOption {
-  int32 months_ = 0;
-  bool is_current_ = false;
-  bool is_upgrade_ = false;
-  string currency_;
-  int64 amount_ = 0;
-  string bot_url_;
-  string store_product_;
-  string transaction_;
-
-  friend bool operator<(const PremiumGiftOption &lhs, const PremiumGiftOption &rhs);
-
-  friend bool operator==(const PremiumGiftOption &lhs, const PremiumGiftOption &rhs);
-
-  double get_monthly_price() const;
-
-  td_api::object_ptr<td_api::premiumPaymentOption> get_premium_payment_option_object(
-      const PremiumGiftOption &base_option) const;
-
- public:
-  PremiumGiftOption() = default;
-
-  explicit PremiumGiftOption(telegram_api::object_ptr<telegram_api::premiumSubscriptionOption> &&option);
-
-  td_api::object_ptr<td_api::premiumStatePaymentOption> get_premium_state_payment_option_object(
-      const PremiumGiftOption &base_option) const;
-
-  bool is_valid() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const PremiumGiftOption &lhs, const PremiumGiftOption &rhs);
-bool operator!=(const PremiumGiftOption &lhs, const PremiumGiftOption &rhs);
-
-vector<PremiumGiftOption> get_premium_gift_options(
-    vector<telegram_api::object_ptr<telegram_api::premiumSubscriptionOption>> &&options);
-
-vector<td_api::object_ptr<td_api::premiumStatePaymentOption>> get_premium_state_payment_options_object(
-    const vector<PremiumGiftOption> &options);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PremiumGiftOption.hpp b/third-party/td/td/td/telegram/PremiumGiftOption.hpp
deleted file mode 100644
index 298c0d9a87..0000000000
--- a/third-party/td/td/td/telegram/PremiumGiftOption.hpp
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/PremiumGiftOption.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void PremiumGiftOption::store(StorerT &storer) const {
-  bool has_months = months_ != 0;
-  bool has_currency = !currency_.empty();
-  bool has_amount = amount_ != 0;
-  bool has_bot_url = !bot_url_.empty();
-  bool has_store_product = !store_product_.empty();
-  bool has_transaction = !transaction_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_months);
-  STORE_FLAG(has_currency);
-  STORE_FLAG(has_amount);
-  STORE_FLAG(has_bot_url);
-  STORE_FLAG(has_store_product);
-  STORE_FLAG(is_current_);
-  STORE_FLAG(is_upgrade_);
-  STORE_FLAG(has_transaction);
-  END_STORE_FLAGS();
-  if (has_months) {
-    td::store(months_, storer);
-  }
-  if (has_currency) {
-    td::store(currency_, storer);
-  }
-  if (has_amount) {
-    td::store(amount_, storer);
-  }
-  if (has_bot_url) {
-    td::store(bot_url_, storer);
-  }
-  if (has_store_product) {
-    td::store(store_product_, storer);
-  }
-  if (has_transaction) {
-    td::store(transaction_, storer);
-  }
-}
-
-template <class ParserT>
-void PremiumGiftOption::parse(ParserT &parser) {
-  bool has_months;
-  bool has_currency;
-  bool has_amount;
-  bool has_bot_url;
-  bool has_store_product;
-  bool has_transaction;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_months);
-  PARSE_FLAG(has_currency);
-  PARSE_FLAG(has_amount);
-  PARSE_FLAG(has_bot_url);
-  PARSE_FLAG(has_store_product);
-  PARSE_FLAG(is_current_);
-  PARSE_FLAG(is_upgrade_);
-  PARSE_FLAG(has_transaction);
-  END_PARSE_FLAGS();
-  if (has_months) {
-    td::parse(months_, parser);
-  }
-  if (has_currency) {
-    td::parse(currency_, parser);
-  }
-  if (has_amount) {
-    td::parse(amount_, parser);
-  }
-  if (has_bot_url) {
-    td::parse(bot_url_, parser);
-  }
-  if (has_store_product) {
-    td::parse(store_product_, parser);
-  }
-  if (has_transaction) {
-    td::parse(transaction_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PrivacyManager.cpp b/third-party/td/td/td/telegram/PrivacyManager.cpp
deleted file mode 100644
index 4b27adc83f..0000000000
--- a/third-party/td/td/td/telegram/PrivacyManager.cpp
+++ /dev/null
@@ -1,281 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PrivacyManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-
-#include <algorithm>
-#include <iterator>
-
-namespace td {
-
-class GetPrivacyQuery final : public Td::ResultHandler {
-  Promise<UserPrivacySettingRules> promise_;
-
- public:
-  explicit GetPrivacyQuery(Promise<UserPrivacySettingRules> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserPrivacySetting user_privacy_setting) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_getPrivacy(user_privacy_setting.get_input_privacy_key())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getPrivacy>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPrivacyQuery: " << to_string(ptr);
-    promise_.set_value(UserPrivacySettingRules::get_user_privacy_setting_rules(td_, std::move(ptr)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetPrivacyQuery final : public Td::ResultHandler {
-  Promise<UserPrivacySettingRules> promise_;
-
- public:
-  explicit SetPrivacyQuery(Promise<UserPrivacySettingRules> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserPrivacySetting user_privacy_setting, UserPrivacySettingRules &&privacy_rules) {
-    send_query(G()->net_query_creator().create(telegram_api::account_setPrivacy(
-        user_privacy_setting.get_input_privacy_key(), privacy_rules.get_input_privacy_rules(td_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_setPrivacy>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SetPrivacyQuery: " << to_string(ptr);
-    promise_.set_value(UserPrivacySettingRules::get_user_privacy_setting_rules(td_, std::move(ptr)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AddNoPaidMessageExceptionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-
- public:
-  explicit AddNoPaidMessageExceptionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user, bool refund_charged) {
-    user_id_ = user_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_addNoPaidMessagesException(0, refund_charged, std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_addNoPaidMessagesException>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (result_ptr.ok()) {
-      td_->user_manager_->on_update_user_charge_paid_message_stars(user_id_, 0);
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-PrivacyManager::PrivacyManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void PrivacyManager::tear_down() {
-  parent_.reset();
-}
-
-void PrivacyManager::get_privacy(tl_object_ptr<td_api::UserPrivacySetting> key,
-                                 Promise<tl_object_ptr<td_api::userPrivacySettingRules>> promise) {
-  TRY_RESULT_PROMISE(promise, user_privacy_setting, UserPrivacySetting::get_user_privacy_setting(std::move(key)));
-  auto &info = get_info(user_privacy_setting);
-  if (info.is_synchronized_) {
-    return promise.set_value(info.rules_.get_user_privacy_setting_rules_object(td_));
-  }
-  info.get_promises_.push_back(std::move(promise));
-  if (info.get_promises_.size() > 1u) {
-    // query has already been sent, just wait for the result
-    return;
-  }
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), user_privacy_setting](Result<UserPrivacySettingRules> r_privacy_rules) {
-        send_closure(actor_id, &PrivacyManager::on_get_user_privacy_settings, user_privacy_setting,
-                     std::move(r_privacy_rules));
-      });
-  td_->create_handler<GetPrivacyQuery>(std::move(query_promise))->send(user_privacy_setting);
-}
-
-void PrivacyManager::set_privacy(tl_object_ptr<td_api::UserPrivacySetting> key,
-                                 tl_object_ptr<td_api::userPrivacySettingRules> rules, Promise<Unit> promise) {
-  TRY_RESULT_PROMISE(promise, user_privacy_setting, UserPrivacySetting::get_user_privacy_setting(std::move(key)));
-  TRY_RESULT_PROMISE(promise, privacy_rules,
-                     UserPrivacySettingRules::get_user_privacy_setting_rules(td_, std::move(rules)));
-
-  auto &info = get_info(user_privacy_setting);
-  if (info.has_set_query_) {
-    info.pending_rules_ = std::move(privacy_rules);
-    info.set_promises_.push_back(std::move(promise));
-    return;
-  }
-  info.has_set_query_ = true;
-
-  set_privacy_impl(user_privacy_setting, std::move(privacy_rules), std::move(promise));
-}
-
-void PrivacyManager::set_privacy_impl(UserPrivacySetting user_privacy_setting, UserPrivacySettingRules &&privacy_rules,
-                                      Promise<Unit> &&promise) {
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), user_privacy_setting,
-                              promise = std::move(promise)](Result<UserPrivacySettingRules> r_privacy_rules) mutable {
-        send_closure(actor_id, &PrivacyManager::on_set_user_privacy_settings, user_privacy_setting,
-                     std::move(r_privacy_rules), std::move(promise));
-      });
-  td_->create_handler<SetPrivacyQuery>(std::move(query_promise))->send(user_privacy_setting, std::move(privacy_rules));
-}
-
-void PrivacyManager::on_update_privacy(tl_object_ptr<telegram_api::updatePrivacy> update) {
-  CHECK(update != nullptr);
-  CHECK(update->key_ != nullptr);
-  UserPrivacySetting user_privacy_setting(*update->key_);
-  auto privacy_rules = UserPrivacySettingRules::get_user_privacy_setting_rules(td_, std::move(update->rules_));
-  do_update_privacy(user_privacy_setting, std::move(privacy_rules), true);
-}
-
-void PrivacyManager::on_get_user_privacy_settings(UserPrivacySetting user_privacy_setting,
-                                                  Result<UserPrivacySettingRules> r_privacy_rules) {
-  G()->ignore_result_if_closing(r_privacy_rules);
-  auto &info = get_info(user_privacy_setting);
-  auto promises = std::move(info.get_promises_);
-  reset_to_empty(info.get_promises_);
-  for (auto &promise : promises) {
-    if (r_privacy_rules.is_error()) {
-      promise.set_error(r_privacy_rules.error().clone());
-    } else {
-      promise.set_value(r_privacy_rules.ok().get_user_privacy_setting_rules_object(td_));
-    }
-  }
-  if (r_privacy_rules.is_ok()) {
-    do_update_privacy(user_privacy_setting, r_privacy_rules.move_as_ok(), false);
-  }
-}
-
-void PrivacyManager::on_set_user_privacy_settings(UserPrivacySetting user_privacy_setting,
-                                                  Result<UserPrivacySettingRules> r_privacy_rules,
-                                                  Promise<Unit> &&promise) {
-  if (G()->close_flag()) {
-    auto &info = get_info(user_privacy_setting);
-    CHECK(info.has_set_query_);
-    info.has_set_query_ = false;
-    auto promises = std::move(info.set_promises_);
-    fail_promises(promises, Global::request_aborted_error());
-    promise.set_error(Global::request_aborted_error());
-    return;
-  }
-
-  auto &info = get_info(user_privacy_setting);
-  CHECK(info.has_set_query_);
-  info.has_set_query_ = false;
-  if (r_privacy_rules.is_error()) {
-    promise.set_error(r_privacy_rules.move_as_error());
-  } else {
-    do_update_privacy(user_privacy_setting, r_privacy_rules.move_as_ok(), true);
-    promise.set_value(Unit());
-  }
-  if (!info.set_promises_.empty()) {
-    info.has_set_query_ = true;
-    auto join_promise =
-        PromiseCreator::lambda([promises = std::move(info.set_promises_)](Result<Unit> &&result) mutable {
-          if (result.is_ok()) {
-            set_promises(promises);
-          } else {
-            fail_promises(promises, result.move_as_error());
-          }
-        });
-    reset_to_empty(info.set_promises_);
-    set_privacy_impl(user_privacy_setting, std::move(info.pending_rules_), std::move(join_promise));
-  }
-}
-
-void PrivacyManager::do_update_privacy(UserPrivacySetting user_privacy_setting, UserPrivacySettingRules &&privacy_rules,
-                                       bool from_update) {
-  auto &info = get_info(user_privacy_setting);
-  bool was_synchronized = info.is_synchronized_;
-  info.is_synchronized_ = true;
-
-  if (!(info.rules_ == privacy_rules)) {
-    if (!G()->close_flag() && (from_update || was_synchronized)) {
-      switch (user_privacy_setting.type()) {
-        case UserPrivacySetting::Type::UserStatus: {
-          send_closure_later(G()->user_manager(), &UserManager::on_update_online_status_privacy);
-
-          auto old_restricted = info.rules_.get_restricted_user_ids();
-          auto new_restricted = privacy_rules.get_restricted_user_ids();
-          if (old_restricted != new_restricted) {
-            // if a user was unrestricted, it is not received from the server anymore
-            // we need to reget their online status manually
-            std::vector<UserId> unrestricted;
-            std::set_difference(old_restricted.begin(), old_restricted.end(), new_restricted.begin(),
-                                new_restricted.end(), std::back_inserter(unrestricted),
-                                [](UserId lhs, UserId rhs) { return lhs.get() < rhs.get(); });
-            for (auto &user_id : unrestricted) {
-              send_closure_later(G()->user_manager(), &UserManager::reload_user, user_id, Promise<Unit>(),
-                                 "do_update_privacy");
-            }
-          }
-          break;
-        }
-        case UserPrivacySetting::Type::UserPhoneNumber:
-          send_closure_later(G()->user_manager(), &UserManager::on_update_phone_number_privacy);
-          break;
-        default:
-          break;
-      }
-    }
-
-    info.rules_ = std::move(privacy_rules);
-    send_closure(
-        G()->td(), &Td::send_update,
-        make_tl_object<td_api::updateUserPrivacySettingRules>(user_privacy_setting.get_user_privacy_setting_object(),
-                                                              info.rules_.get_user_privacy_setting_rules_object(td_)));
-  }
-}
-
-void PrivacyManager::allow_unpaid_messages(UserId user_id, bool refund_payments, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-  td_->create_handler<AddNoPaidMessageExceptionQuery>(std::move(promise))
-      ->send(user_id, std::move(input_user), refund_payments);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PrivacyManager.h b/third-party/td/td/td/telegram/PrivacyManager.h
deleted file mode 100644
index 75ed1443b9..0000000000
--- a/third-party/td/td/td/telegram/PrivacyManager.h
+++ /dev/null
@@ -1,75 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserPrivacySetting.h"
-#include "td/telegram/UserPrivacySettingRule.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <array>
-
-namespace td {
-
-class Td;
-
-class PrivacyManager final : public Actor {
- public:
-  PrivacyManager(Td *td, ActorShared<> parent);
-
-  void get_privacy(tl_object_ptr<td_api::UserPrivacySetting> key,
-                   Promise<tl_object_ptr<td_api::userPrivacySettingRules>> promise);
-
-  void set_privacy(tl_object_ptr<td_api::UserPrivacySetting> key, tl_object_ptr<td_api::userPrivacySettingRules> rules,
-                   Promise<Unit> promise);
-
-  void on_update_privacy(tl_object_ptr<telegram_api::updatePrivacy> update);
-
-  void allow_unpaid_messages(UserId user_id, bool refund_payments, Promise<Unit> &&promise);
-
- private:
-  struct PrivacyInfo {
-    UserPrivacySettingRules rules_;
-    UserPrivacySettingRules pending_rules_;
-    vector<Promise<tl_object_ptr<td_api::userPrivacySettingRules>>> get_promises_;
-    vector<Promise<Unit>> set_promises_;
-    bool has_set_query_ = false;
-    bool is_synchronized_ = false;
-  };
-
-  void tear_down() final;
-
-  PrivacyInfo &get_info(UserPrivacySetting key) {
-    return info_[static_cast<size_t>(key.type())];
-  }
-
-  void on_get_user_privacy_settings(UserPrivacySetting user_privacy_setting,
-                                    Result<UserPrivacySettingRules> r_privacy_rules);
-
-  void set_privacy_impl(UserPrivacySetting user_privacy_setting, UserPrivacySettingRules &&privacy_rules,
-                        Promise<Unit> &&promise);
-
-  void on_set_user_privacy_settings(UserPrivacySetting user_privacy_setting,
-                                    Result<UserPrivacySettingRules> r_privacy_rules, Promise<Unit> &&promise);
-
-  void do_update_privacy(UserPrivacySetting user_privacy_setting, UserPrivacySettingRules &&privacy_rules,
-                         bool from_update);
-
-  std::array<PrivacyInfo, static_cast<size_t>(UserPrivacySetting::Type::Size)> info_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PromoDataManager.cpp b/third-party/td/td/td/telegram/PromoDataManager.cpp
deleted file mode 100644
index c03236cbeb..0000000000
--- a/third-party/td/td/td/telegram/PromoDataManager.cpp
+++ /dev/null
@@ -1,195 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PromoDataManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogSource.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class GetPromoDataQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::help_PromoData>> promise_;
-
- public:
-  explicit GetPromoDataQuery(Promise<telegram_api::object_ptr<telegram_api::help_PromoData>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    // we don't poll promo data before authorization
-    send_query(G()->net_query_creator().create(telegram_api::help_getPromoData()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getPromoData>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class HidePromoDataQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-
- public:
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::help_hidePromoData(std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_hidePromoData>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    // we are not interested in the result
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "HidePromoDataQuery") &&
-        !G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for sponsored chat hiding: " << status;
-    }
-  }
-};
-
-PromoDataManager::PromoDataManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void PromoDataManager::tear_down() {
-  parent_.reset();
-}
-
-void PromoDataManager::start_up() {
-  init();
-}
-
-void PromoDataManager::init() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (is_inited_ || !td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  is_inited_ = true;
-
-  reload_promo_data();
-}
-
-void PromoDataManager::reload_promo_data() {
-  if (reloading_promo_data_) {
-    need_reload_promo_data_ = true;
-    return;
-  }
-  schedule_get_promo_data(0);
-}
-
-void PromoDataManager::schedule_get_promo_data(int32 expires_in) {
-  if (!is_inited_) {
-    return;
-  }
-
-  expires_in = expires_in <= 0 ? 0 : clamp(expires_in, 60, 86400);
-  LOG(INFO) << "Schedule getPromoData in " << expires_in;
-  set_timeout_in(expires_in);
-}
-
-void PromoDataManager::timeout_expired() {
-  if (G()->close_flag() || !is_inited_) {
-    return;
-  }
-
-  reloading_promo_data_ = true;
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::help_PromoData>> result) {
-        send_closure(actor_id, &PromoDataManager::on_get_promo_data, std::move(result), false);
-      });
-  td_->create_handler<GetPromoDataQuery>(std::move(promise))->send();
-}
-
-void PromoDataManager::on_get_promo_data(Result<telegram_api::object_ptr<telegram_api::help_PromoData>> r_promo_data,
-                                         bool dummy) {
-  if (G()->close_flag()) {
-    return;
-  }
-  reloading_promo_data_ = false;
-
-  if (r_promo_data.is_error()) {
-    if (!G()->is_expected_error(r_promo_data.error())) {
-      LOG(ERROR) << "Receive error for GetPromoData: " << r_promo_data.error();
-    }
-    return schedule_get_promo_data(60);
-  }
-
-  auto promo_data_ptr = r_promo_data.move_as_ok();
-  CHECK(promo_data_ptr != nullptr);
-  LOG(DEBUG) << "Receive " << to_string(promo_data_ptr);
-  int32 expires_at = 0;
-  switch (promo_data_ptr->get_id()) {
-    case telegram_api::help_promoDataEmpty::ID: {
-      auto promo = telegram_api::move_object_as<telegram_api::help_promoDataEmpty>(promo_data_ptr);
-      expires_at = promo->expires_;
-      remove_sponsored_dialog();
-      break;
-    }
-    case telegram_api::help_promoData::ID: {
-      auto promo = telegram_api::move_object_as<telegram_api::help_promoData>(promo_data_ptr);
-      td_->user_manager_->on_get_users(std::move(promo->users_), "on_get_promo_data");
-      td_->chat_manager_->on_get_chats(std::move(promo->chats_), "on_get_promo_data");
-      expires_at = promo->expires_;
-      bool is_proxy = promo->proxy_;
-      td_->messages_manager_->set_sponsored_dialog(
-          DialogId(promo->peer_),
-          is_proxy ? DialogSource::mtproto_proxy()
-                   : DialogSource::public_service_announcement(promo->psa_type_, promo->psa_message_));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  if (need_reload_promo_data_) {
-    need_reload_promo_data_ = false;
-    expires_at = 0;
-  }
-  schedule_get_promo_data(expires_at == 0 ? 0 : expires_at - G()->unix_time());
-}
-
-void PromoDataManager::remove_sponsored_dialog() {
-  td_->messages_manager_->set_sponsored_dialog(DialogId(), DialogSource());
-}
-
-void PromoDataManager::hide_promo_data(DialogId dialog_id) {
-  remove_sponsored_dialog();
-
-  td_->create_handler<HidePromoDataQuery>()->send(dialog_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PromoDataManager.h b/third-party/td/td/td/telegram/PromoDataManager.h
deleted file mode 100644
index 06a44bcbab..0000000000
--- a/third-party/td/td/td/telegram/PromoDataManager.h
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class PromoDataManager final : public Actor {
- public:
-  PromoDataManager(Td *td, ActorShared<> parent);
-
-  void init();
-
-  void reload_promo_data();
-
-  void remove_sponsored_dialog();
-
-  void hide_promo_data(DialogId dialog_id);
-
- private:
-  void tear_down() final;
-
-  void start_up() final;
-
-  void timeout_expired() final;
-
-  void on_get_promo_data(Result<telegram_api::object_ptr<telegram_api::help_PromoData>> r_promo_data, bool dummy);
-
-  void schedule_get_promo_data(int32 expires_in);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  bool is_inited_ = false;
-  bool reloading_promo_data_ = false;
-  bool need_reload_promo_data_ = false;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PtsManager.h b/third-party/td/td/td/telegram/PtsManager.h
deleted file mode 100644
index 7562ced2f6..0000000000
--- a/third-party/td/td/td/telegram/PtsManager.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/ChangesProcessor.h"
-#include "td/utils/common.h"
-
-namespace td {
-
-// It is not about handling gaps.
-// It is about finding mem processed PTS.
-// All checks must be done before.
-
-class PtsManager {
- public:
-  using PtsId = ChangesProcessor<int32>::Id;
-  void init(int32 pts) {
-    db_pts_ = pts;
-    mem_pts_ = pts;
-    state_helper_.clear();
-  }
-
-  // 0 if not a checkpoint
-  PtsId add_pts(int32 pts) {
-    if (pts > 0) {
-      mem_pts_ = pts;
-    }
-    return state_helper_.add(pts);
-  }
-
-  // return db_pts
-  int32 finish(PtsId pts_id) {
-    state_helper_.finish(pts_id, [&](int32 pts) {
-      if (pts != 0) {
-        db_pts_ = pts;
-      }
-    });
-    return db_pts_;
-  }
-
-  int32 db_pts() const {
-    return db_pts_;
-  }
-  int32 mem_pts() const {
-    return mem_pts_;
-  }
-
- private:
-  int32 db_pts_ = -1;
-  int32 mem_pts_ = -1;
-  ChangesProcessor<int32> state_helper_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/PublicDialogType.h b/third-party/td/td/td/telegram/PublicDialogType.h
deleted file mode 100644
index 9355eaa21e..0000000000
--- a/third-party/td/td/td/telegram/PublicDialogType.h
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-namespace td {
-
-enum class PublicDialogType : int32 { HasUsername, IsLocationBased, ForPersonalDialog };
-
-inline PublicDialogType get_public_dialog_type(const td_api::object_ptr<td_api::PublicChatType> &type) {
-  if (type == nullptr || type->get_id() == td_api::publicChatTypeHasUsername::ID) {
-    return PublicDialogType::HasUsername;
-  }
-  return PublicDialogType::IsLocationBased;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/QueryCombiner.cpp b/third-party/td/td/td/telegram/QueryCombiner.cpp
deleted file mode 100644
index b00050b64e..0000000000
--- a/third-party/td/td/td/telegram/QueryCombiner.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/QueryCombiner.h"
-
-#include "td/telegram/Global.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-QueryCombiner::QueryCombiner(Slice name, double min_delay) : next_query_time_(Time::now()), min_delay_(min_delay) {
-  register_actor(name, this).release();
-}
-
-void QueryCombiner::add_query(int64 query_id, Promise<Promise<Unit>> &&send_query, Promise<Unit> &&promise) {
-  LOG(INFO) << "Add query " << query_id << " with" << (promise ? "" : "out") << " promise";
-  CHECK(query_id != 0);
-  auto &query = queries_[query_id];
-  if (promise) {
-    query.promises.push_back(std::move(promise));
-  } else if (min_delay_ > 0 && !query.is_sent) {
-    // if there is no promise, then noone waits for response
-    // we can delay query to not exceed any flood limit
-    if (query.send_query) {
-      // the query is already delayed
-      return;
-    }
-    query.send_query = std::move(send_query);
-    delayed_queries_.push(query_id);
-    loop();
-    return;
-  }
-  if (query.is_sent) {
-    // just wait for the result
-    return;
-  }
-
-  if (!query.send_query) {
-    query.send_query = std::move(send_query);
-  }
-  do_send_query(query_id, query);
-}
-
-void QueryCombiner::do_send_query(int64 query_id, QueryInfo &query) {
-  LOG(INFO) << "Send query " << query_id;
-  CHECK(query.send_query);
-  query.is_sent = true;
-  auto send_query = std::move(query.send_query);
-  CHECK(!query.send_query);
-  next_query_time_ = Time::now() + min_delay_;
-  query_count_++;
-  send_query.set_value(PromiseCreator::lambda([actor_id = actor_id(this), query_id](Result<Unit> &&result) {
-    send_closure(actor_id, &QueryCombiner::on_get_query_result, query_id, std::move(result));
-  }));
-}
-
-void QueryCombiner::on_get_query_result(int64 query_id, Result<Unit> &&result) {
-  LOG(INFO) << "Get result of query " << query_id << (result.is_error() ? " error" : " success");
-  query_count_--;
-  auto it = queries_.find(query_id);
-  CHECK(it != queries_.end());
-  CHECK(it->second.is_sent);
-  auto promises = std::move(it->second.promises);
-  queries_.erase(it);
-
-  if (result.is_ok()) {
-    set_promises(promises);
-  } else {
-    fail_promises(promises, result.move_as_error());
-  }
-  loop();
-}
-
-void QueryCombiner::loop() {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto now = Time::now();
-  if (now < next_query_time_) {
-    set_timeout_in(next_query_time_ - now + 0.001);
-    return;
-  }
-  if (query_count_ != 0) {
-    return;
-  }
-
-  while (!delayed_queries_.empty()) {
-    auto query_id = delayed_queries_.front();
-    delayed_queries_.pop();
-    auto it = queries_.find(query_id);
-    if (it == queries_.end()) {
-      continue;
-    }
-    auto &query = it->second;
-    if (query.is_sent) {
-      continue;
-    }
-    do_send_query(query_id, query);
-    break;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/QueryCombiner.h b/third-party/td/td/td/telegram/QueryCombiner.h
deleted file mode 100644
index fb6d5a8c58..0000000000
--- a/third-party/td/td/td/telegram/QueryCombiner.h
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <queue>
-
-namespace td {
-
-// combines identical queries into one request
-class QueryCombiner final : public Actor {
- public:
-  QueryCombiner(Slice name, double min_delay);
-
-  void add_query(int64 query_id, Promise<Promise<Unit>> &&send_query, Promise<Unit> &&promise);
-
- private:
-  struct QueryInfo {
-    vector<Promise<Unit>> promises;
-    bool is_sent = false;
-    Promise<Promise<Unit>> send_query;
-  };
-
-  int32 query_count_ = 0;
-
-  double next_query_time_;
-  double min_delay_;
-
-  std::queue<int64> delayed_queries_;
-
-  FlatHashMap<int64, QueryInfo> queries_;
-
-  void do_send_query(int64 query_id, QueryInfo &query);
-
-  void on_get_query_result(int64 query_id, Result<Unit> &&result);
-
-  void loop() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/QueryMerger.cpp b/third-party/td/td/td/telegram/QueryMerger.cpp
deleted file mode 100644
index 6372d940c6..0000000000
--- a/third-party/td/td/td/telegram/QueryMerger.cpp
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/QueryMerger.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-QueryMerger::QueryMerger(Slice name, size_t max_concurrent_query_count, size_t max_merged_query_count)
-    : max_concurrent_query_count_(max_concurrent_query_count), max_merged_query_count_(max_merged_query_count) {
-  register_actor(name, this).release();
-}
-
-void QueryMerger::add_query(int64 query_id, Promise<Unit> &&promise, const char *source) {
-  LOG(INFO) << "Add query " << query_id << " with" << (promise ? "" : "out") << " promise from " << source;
-  CHECK(query_id != 0);
-  auto &query = queries_[query_id];
-  query.promises_.push_back(std::move(promise));
-  if (query.promises_.size() != 1) {
-    // duplicate query, just wait
-    return;
-  }
-  pending_queries_.push(query_id);
-  loop();
-}
-
-void QueryMerger::send_query(vector<int64> query_ids) {
-  CHECK(merge_function_ != nullptr);
-  LOG(INFO) << "Send queries " << query_ids;
-  query_count_++;
-  merge_function_(query_ids, PromiseCreator::lambda([actor_id = actor_id(this), query_ids](Result<Unit> &&result) {
-                    send_closure(actor_id, &QueryMerger::on_get_query_result, std::move(query_ids), std::move(result));
-                  }));
-}
-
-void QueryMerger::on_get_query_result(vector<int64> query_ids, Result<Unit> &&result) {
-  LOG(INFO) << "Get result of queries " << query_ids << (result.is_error() ? " error" : " success");
-  query_count_--;
-  for (auto query_id : query_ids) {
-    auto it = queries_.find(query_id);
-    CHECK(it != queries_.end());
-    auto promises = std::move(it->second.promises_);
-    queries_.erase(it);
-
-    if (result.is_ok()) {
-      set_promises(promises);
-    } else {
-      fail_promises(promises, result.error().clone());
-    }
-  }
-  loop();
-}
-
-void QueryMerger::loop() {
-  if (query_count_ == max_concurrent_query_count_) {
-    return;
-  }
-
-  vector<int64> query_ids;
-  while (!pending_queries_.empty()) {
-    auto query_id = pending_queries_.front();
-    pending_queries_.pop();
-    query_ids.push_back(query_id);
-    if (query_ids.size() == max_merged_query_count_) {
-      send_query(std::move(query_ids));
-      query_ids.clear();
-      if (query_count_ == max_concurrent_query_count_) {
-        break;
-      }
-    }
-  }
-  if (!query_ids.empty()) {
-    send_query(std::move(query_ids));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/QueryMerger.h b/third-party/td/td/td/telegram/QueryMerger.h
deleted file mode 100644
index 58ed60babd..0000000000
--- a/third-party/td/td/td/telegram/QueryMerger.h
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <functional>
-#include <queue>
-
-namespace td {
-
-// merges queries into a single request
-class QueryMerger final : public Actor {
- public:
-  QueryMerger(Slice name, size_t max_concurrent_query_count, size_t max_merged_query_count);
-
-  using MergeFunction = std::function<void(vector<int64> query_ids, Promise<Unit> &&promise)>;
-  void set_merge_function(MergeFunction merge_function) {
-    merge_function_ = std::move(merge_function);
-  }
-
-  void add_query(int64 query_id, Promise<Unit> &&promise, const char *source);
-
- private:
-  struct QueryInfo {
-    vector<Promise<Unit>> promises_;
-  };
-
-  size_t query_count_ = 0;
-  size_t max_concurrent_query_count_;
-  size_t max_merged_query_count_;
-
-  MergeFunction merge_function_;
-  std::queue<int64> pending_queries_;
-  FlatHashMap<int64, QueryInfo> queries_;
-
-  void send_query(vector<int64> query_ids);
-
-  void on_get_query_result(vector<int64> query_ids, Result<Unit> &&result);
-
-  void loop() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/QuickReplyManager.cpp b/third-party/td/td/td/telegram/QuickReplyManager.cpp
deleted file mode 100644
index 7f51f618cd..0000000000
--- a/third-party/td/td/td/telegram/QuickReplyManager.cpp
+++ /dev/null
@@ -1,3864 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/QuickReplyManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/InlineQueriesManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageCopyOptions.h"
-#include "td/telegram/MessageInputReplyTo.h"
-#include "td/telegram/MessageQueryManager.h"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/MessageReplyHeader.h"
-#include "td/telegram/MessageSelfDestructType.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/ReplyMarkup.hpp"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/unicode.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <limits>
-#include <unordered_map>
-
-namespace td {
-
-class GetQuickRepliesQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_QuickReplies>> promise_;
-
- public:
-  explicit GetQuickRepliesQuery(Promise<telegram_api::object_ptr<telegram_api::messages_QuickReplies>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getQuickReplies(hash), {{"quick_reply"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getQuickReplies>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetQuickRepliesQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditQuickReplyShortcutQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit EditQuickReplyShortcutQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(QuickReplyShortcutId shortcut_id, const string &name) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_editQuickReplyShortcut(shortcut_id.get(), name),
-                                               {{"quick_reply"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editQuickReplyShortcut>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteQuickReplyShortcutQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteQuickReplyShortcutQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(QuickReplyShortcutId shortcut_id) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_deleteQuickReplyShortcut(shortcut_id.get()),
-                                               {{"quick_reply"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteQuickReplyShortcut>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->quick_reply_manager_->reload_quick_reply_shortcuts();
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderQuickRepliesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ReorderQuickRepliesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<QuickReplyShortcutId> shortcut_ids) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_reorderQuickReplies(
-                                            QuickReplyShortcutId::get_input_quick_reply_shortcut_ids(shortcut_ids)),
-                                        {{"quick_reply"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_reorderQuickReplies>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->quick_reply_manager_->reload_quick_reply_shortcuts();
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetQuickReplyMessagesQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_Messages>> promise_;
-
- public:
-  explicit GetQuickReplyMessagesQuery(Promise<telegram_api::object_ptr<telegram_api::messages_Messages>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(QuickReplyShortcutId shortcut_id, const vector<MessageId> &message_ids, int64 hash) {
-    int32 flags = 0;
-    if (!message_ids.empty()) {
-      flags |= telegram_api::messages_getQuickReplyMessages::ID_MASK;
-    }
-    CHECK(shortcut_id.is_server());
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getQuickReplyMessages(flags, shortcut_id.get(),
-                                                     MessageId::get_server_message_ids(message_ids), hash),
-        {{"quick_reply"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getQuickReplyMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetQuickReplyMessagesQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteQuickReplyMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  QuickReplyShortcutId shortcut_id_;
-
- public:
-  explicit DeleteQuickReplyMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(QuickReplyShortcutId shortcut_id, const vector<MessageId> &message_ids) {
-    shortcut_id_ = shortcut_id;
-    CHECK(shortcut_id.is_server());
-    send_query(G()->net_query_creator().create(telegram_api::messages_deleteQuickReplyMessages(
-                                                   shortcut_id.get(), MessageId::get_server_message_ids(message_ids)),
-                                               {{"quick_reply"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteQuickReplyMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->quick_reply_manager_->reload_quick_reply_messages(shortcut_id_, Promise<Unit>());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class QuickReplyManager::SendQuickReplyMessageQuery final : public Td::ResultHandler {
-  int64 random_id_;
-  QuickReplyShortcutId shortcut_id_;
-
- public:
-  void send(const QuickReplyMessage *m) {
-    random_id_ = m->random_id;
-    shortcut_id_ = m->shortcut_id;
-
-    int32 flags = telegram_api::messages_sendMessage::QUICK_REPLY_SHORTCUT_MASK;
-    if (m->disable_web_page_preview) {
-      flags |= telegram_api::messages_sendMessage::NO_WEBPAGE_MASK;
-    }
-    if (m->invert_media) {
-      flags |= telegram_api::messages_sendMessage::INVERT_MEDIA_MASK;
-    }
-    auto reply_to =
-        MessageInputReplyTo(m->reply_to_message_id, DialogId(), MessageQuote()).get_input_reply_to(td_, MessageId());
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMessage::REPLY_TO_MASK;
-    }
-    CHECK(m->edited_content == nullptr);
-    const FormattedText *message_text = get_message_content_text(m->content.get());
-    CHECK(message_text != nullptr);
-    auto entities = get_input_message_entities(td_->user_manager_.get(), message_text, "SendQuickReplyMessageQuery");
-    if (!entities.empty()) {
-      flags |= telegram_api::messages_sendMessage::ENTITIES_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendMessage(
-            flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-            false /*ignored*/, false /*ignored*/, false /*ignored*/,
-            telegram_api::make_object<telegram_api::inputPeerSelf>(), std::move(reply_to), message_text->text,
-            m->random_id, nullptr, std::move(entities), 0, nullptr,
-            td_->quick_reply_manager_->get_input_quick_reply_shortcut(m->shortcut_id), 0, 0),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendQuickReplyMessageQuery for " << random_id_ << ": " << to_string(ptr);
-    td_->quick_reply_manager_->process_send_quick_reply_updates(shortcut_id_, FileUploadId(), std::move(ptr),
-                                                                {random_id_});
-  }
-
-  void on_error(Status status) final {
-    if (G()->close_flag()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    LOG(INFO) << "Receive error for SendQuickReplyMessageQuery: " << status;
-    td_->quick_reply_manager_->on_failed_send_quick_reply_messages(shortcut_id_, {random_id_}, std::move(status));
-  }
-};
-
-class QuickReplyManager::SendQuickReplyInlineMessageQuery final : public Td::ResultHandler {
-  int64 random_id_;
-  QuickReplyShortcutId shortcut_id_;
-
- public:
-  void send(const QuickReplyMessage *m) {
-    random_id_ = m->random_id;
-    shortcut_id_ = m->shortcut_id;
-
-    int32 flags = telegram_api::messages_sendInlineBotResult::QUICK_REPLY_SHORTCUT_MASK;
-    if (m->hide_via_bot) {
-      flags |= telegram_api::messages_sendInlineBotResult::HIDE_VIA_MASK;
-    }
-    auto reply_to =
-        MessageInputReplyTo(m->reply_to_message_id, DialogId(), MessageQuote()).get_input_reply_to(td_, MessageId());
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendInlineBotResult::REPLY_TO_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendInlineBotResult(
-            flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-            telegram_api::make_object<telegram_api::inputPeerSelf>(), std::move(reply_to), m->random_id,
-            m->inline_query_id, m->inline_result_id, 0, nullptr,
-            td_->quick_reply_manager_->get_input_quick_reply_shortcut(m->shortcut_id), 0),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendInlineBotResult>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendQuickReplyInlineMessageQuery for " << random_id_ << ": " << to_string(ptr);
-    td_->quick_reply_manager_->process_send_quick_reply_updates(shortcut_id_, FileUploadId(), std::move(ptr),
-                                                                {random_id_});
-  }
-
-  void on_error(Status status) final {
-    if (G()->close_flag()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    LOG(INFO) << "Receive error for SendQuickReplyInlineMessageQuery: " << status;
-    td_->quick_reply_manager_->on_failed_send_quick_reply_messages(shortcut_id_, {random_id_}, std::move(status));
-  }
-};
-
-class QuickReplyManager::SendQuickReplyMediaQuery final : public Td::ResultHandler {
-  int64 random_id_;
-  QuickReplyShortcutId shortcut_id_;
-  FileUploadId file_upload_id_;
-  FileUploadId thumbnail_file_upload_id_;
-  FileId cover_file_id_;
-  string file_reference_;
-  string cover_file_reference_;
-  bool was_uploaded_ = false;
-  bool was_thumbnail_uploaded_ = false;
-
- public:
-  void send(const QuickReplyMessage *m, telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-    random_id_ = m->random_id;
-    shortcut_id_ = m->shortcut_id;
-    file_upload_id_ = m->file_upload_id;
-    thumbnail_file_upload_id_ = m->thumbnail_file_upload_id;
-    cover_file_id_ = get_message_content_cover_any_file_id(m->content.get());
-    file_reference_ = FileManager::extract_file_reference(input_media);
-    cover_file_reference_ = FileManager::extract_cover_file_reference(input_media);
-    was_uploaded_ = FileManager::extract_was_uploaded(input_media);
-    was_thumbnail_uploaded_ = FileManager::extract_was_thumbnail_uploaded(input_media);
-
-    int32 flags = telegram_api::messages_sendMedia::QUICK_REPLY_SHORTCUT_MASK;
-    if (m->invert_media) {
-      flags |= telegram_api::messages_sendMedia::INVERT_MEDIA_MASK;
-    }
-    auto reply_to =
-        MessageInputReplyTo(m->reply_to_message_id, DialogId(), MessageQuote()).get_input_reply_to(td_, MessageId());
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMedia::REPLY_TO_MASK;
-    }
-    CHECK(m->edited_content == nullptr);
-    vector<telegram_api::object_ptr<telegram_api::MessageEntity>> entities;
-    const FormattedText *message_text = get_message_content_text(m->content.get());
-    if (message_text != nullptr) {
-      entities = get_input_message_entities(td_->user_manager_.get(), message_text, "SendQuickReplyMediaQuery");
-      if (!entities.empty()) {
-        flags |= telegram_api::messages_sendMedia::ENTITIES_MASK;
-      }
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendMedia(
-            flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-            false /*ignored*/, false /*ignored*/, telegram_api::make_object<telegram_api::inputPeerSelf>(),
-            std::move(reply_to), std::move(input_media), message_text == nullptr ? string() : message_text->text,
-            m->random_id, nullptr, std::move(entities), 0, nullptr,
-            td_->quick_reply_manager_->get_input_quick_reply_shortcut(m->shortcut_id), 0, 0),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (was_thumbnail_uploaded_) {
-      CHECK(thumbnail_file_upload_id_.is_valid());
-      // always delete partial remote location for the thumbnail, because it can't be reused anyway
-      td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id_);
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendQuickReplyMediaQuery for " << random_id_ << ": " << to_string(ptr);
-    td_->quick_reply_manager_->process_send_quick_reply_updates(
-        shortcut_id_, was_uploaded_ ? file_upload_id_ : FileUploadId(), std::move(ptr), {random_id_});
-  }
-
-  void on_error(Status status) final {
-    if (G()->close_flag()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    LOG(INFO) << "Receive error for SendQuickReplyMediaQuery: " << status;
-    if (FileReferenceManager::is_file_reference_error(status)) {
-      auto source = FileReferenceManager::get_file_reference_error_source(status);
-      if (source.is_cover_) {
-        if (cover_file_id_.is_valid() && source.pos_ <= 1) {
-          VLOG(file_references) << "Receive " << status << " for cover " << cover_file_id_;
-          td_->file_manager_->delete_file_reference(cover_file_id_, cover_file_reference_);
-          td_->quick_reply_manager_->on_send_message_file_error(shortcut_id_, random_id_, {-1});
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error, but cover_file_id = " << cover_file_id_;
-        }
-      } else {
-        if (file_upload_id_.is_valid() && !was_uploaded_) {
-          VLOG(file_references) << "Receive " << status << " for " << file_upload_id_;
-          td_->file_manager_->delete_file_reference(file_upload_id_.get_file_id(), file_reference_);
-          td_->quick_reply_manager_->on_send_message_file_error(shortcut_id_, random_id_, {-1});
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error, but file_id = " << file_upload_id_
-                     << ", was_uploaded = " << was_uploaded_;
-        }
-      }
-    }
-    if (was_uploaded_) {
-      if (was_thumbnail_uploaded_) {
-        CHECK(thumbnail_file_upload_id_.is_valid());
-        // always delete partial remote location for the thumbnail, because it can't be reused anyway
-        td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id_);
-      }
-
-      CHECK(file_upload_id_.is_valid());
-      auto bad_parts = FileManager::get_missing_file_parts(status);
-      if (!bad_parts.empty()) {
-        td_->quick_reply_manager_->on_send_message_file_error(shortcut_id_, random_id_, std::move(bad_parts));
-        return;
-      } else {
-        td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id_, status);
-      }
-    }
-
-    td_->quick_reply_manager_->on_failed_send_quick_reply_messages(shortcut_id_, {random_id_}, std::move(status));
-  }
-};
-
-class QuickReplyManager::UploadQuickReplyMediaQuery final : public Td::ResultHandler {
-  int64 random_id_;
-  QuickReplyShortcutId shortcut_id_;
-  MessageId message_id_;
-  FileUploadId file_upload_id_;
-  FileUploadId thumbnail_file_upload_id_;
-  FileId cover_file_id_;
-  string file_reference_;
-  string cover_file_reference_;
-  bool was_uploaded_ = false;
-  bool was_thumbnail_uploaded_ = false;
-
- public:
-  void send(const QuickReplyMessage *m, telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-    random_id_ = m->random_id;
-    shortcut_id_ = m->shortcut_id;
-    message_id_ = m->message_id;
-    file_upload_id_ = m->file_upload_id;
-    thumbnail_file_upload_id_ = m->thumbnail_file_upload_id;
-    cover_file_id_ = get_message_content_cover_any_file_id(m->content.get());
-    file_reference_ = FileManager::extract_file_reference(input_media);
-    cover_file_reference_ = FileManager::extract_cover_file_reference(input_media);
-    was_uploaded_ = FileManager::extract_was_uploaded(input_media);
-    was_thumbnail_uploaded_ = FileManager::extract_was_thumbnail_uploaded(input_media);
-
-    int32 flags = 0;
-    send_query(G()->net_query_creator().create(telegram_api::messages_uploadMedia(
-        flags, string(), telegram_api::make_object<telegram_api::inputPeerSelf>(), std::move(input_media))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_uploadMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (was_thumbnail_uploaded_) {
-      CHECK(thumbnail_file_upload_id_.is_valid());
-      // always delete partial remote location for the thumbnail, because it can't be reused anyway
-      td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id_);
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UploadQuickReplyMediaQuery: " << to_string(ptr);
-    td_->quick_reply_manager_->on_upload_message_media_success(shortcut_id_, message_id_, file_upload_id_,
-                                                               std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (G()->close_flag()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    LOG(INFO) << "Receive error for UploadQuickReplyMediaQuery: " << status;
-    if (FileReferenceManager::is_file_reference_error(status)) {
-      auto source = FileReferenceManager::get_file_reference_error_source(status);
-      if (source.is_cover_ && source.pos_ <= 1 && cover_file_id_.is_valid()) {
-        VLOG(file_references) << "Receive " << status << " for cover " << cover_file_id_;
-        td_->file_manager_->delete_file_reference(cover_file_id_, cover_file_reference_);
-        td_->quick_reply_manager_->on_send_message_file_error(shortcut_id_, random_id_, {-1});
-        return;
-      } else {
-        LOG(ERROR) << "Receive file reference error for UploadMediaQuery";
-      }
-    }
-    if (was_uploaded_) {
-      if (was_thumbnail_uploaded_) {
-        CHECK(thumbnail_file_upload_id_.is_valid());
-        // always delete partial remote location for the thumbnail, because it can't be reused anyway
-        td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id_);
-      }
-
-      CHECK(file_upload_id_.is_valid());
-      auto bad_parts = FileManager::get_missing_file_parts(status);
-      if (!bad_parts.empty()) {
-        td_->quick_reply_manager_->on_send_message_file_error(shortcut_id_, random_id_, std::move(bad_parts));
-        return;
-      } else {
-        td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id_, status);
-      }
-    }
-
-    td_->quick_reply_manager_->on_upload_message_media_fail(shortcut_id_, message_id_, std::move(status));
-  }
-};
-
-class QuickReplyManager::SendQuickReplyMultiMediaQuery final : public Td::ResultHandler {
-  vector<FileId> file_ids_;
-  vector<FileId> cover_file_ids_;
-  vector<string> file_references_;
-  vector<string> cover_file_references_;
-  vector<int64> random_ids_;
-  QuickReplyShortcutId shortcut_id_;
-
- public:
-  void send(QuickReplyShortcutId shortcut_id, MessageId reply_to_message_id, bool invert_media,
-            vector<int64> &&random_ids, vector<FileId> &&file_ids, vector<FileId> &&cover_file_ids,
-            vector<tl_object_ptr<telegram_api::inputSingleMedia>> &&input_single_media) {
-    for (auto &single_media : input_single_media) {
-      CHECK(!FileManager::extract_was_uploaded(single_media->media_));
-      file_references_.push_back(FileManager::extract_file_reference(single_media->media_));
-      cover_file_references_.push_back(FileManager::extract_cover_file_reference(single_media->media_));
-    }
-    shortcut_id_ = shortcut_id;
-    file_ids_ = std::move(file_ids);
-    cover_file_ids_ = std::move(cover_file_ids);
-    random_ids_ = std::move(random_ids);
-    CHECK(file_ids_.size() == random_ids_.size());
-
-    int32 flags = telegram_api::messages_sendMultiMedia::QUICK_REPLY_SHORTCUT_MASK;
-    auto reply_to =
-        MessageInputReplyTo(reply_to_message_id, DialogId(), MessageQuote()).get_input_reply_to(td_, MessageId());
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_sendMultiMedia::REPLY_TO_MASK;
-    }
-    if (invert_media) {
-      flags |= telegram_api::messages_sendMultiMedia::INVERT_MEDIA_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_sendMultiMedia(
-            flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-            false /*ignored*/, false /*ignored*/, telegram_api::make_object<telegram_api::inputPeerSelf>(),
-            std::move(reply_to), std::move(input_single_media), 0, nullptr,
-            td_->quick_reply_manager_->get_input_quick_reply_shortcut(shortcut_id_), 0, 0),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_sendMultiMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendMultiMedia for " << random_ids_ << ": " << to_string(ptr);
-    td_->quick_reply_manager_->process_send_quick_reply_updates(shortcut_id_, FileUploadId(), std::move(ptr),
-                                                                std::move(random_ids_));
-  }
-
-  void on_error(Status status) final {
-    if (G()->close_flag()) {
-      // do not send error, message will be re-sent after restart
-      return;
-    }
-    LOG(INFO) << "Receive error for SendQuickReplyMultiMediaQuery: " << status;
-    if (FileReferenceManager::is_file_reference_error(status)) {
-      auto source = FileReferenceManager::get_file_reference_error_source(status);
-      auto pos = source.pos_;
-      if (source.is_cover_) {
-        if (1 <= pos && pos <= cover_file_ids_.size() && cover_file_ids_[pos - 1].is_valid()) {
-          VLOG(file_references) << "Receive " << status << " for cover " << cover_file_ids_[pos - 1];
-          td_->file_manager_->delete_file_reference(cover_file_ids_[pos - 1], cover_file_references_[pos - 1]);
-          td_->quick_reply_manager_->on_send_media_group_file_reference_error(shortcut_id_, std::move(random_ids_));
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error " << status << ", but cover_file_ids = " << cover_file_ids_
-                     << ", message_count = " << cover_file_ids_.size();
-        }
-      } else {
-        if (1 <= pos && pos <= file_ids_.size() && file_ids_[pos - 1].is_valid()) {
-          VLOG(file_references) << "Receive " << status << " for " << file_ids_[pos - 1];
-          td_->file_manager_->delete_file_reference(file_ids_[pos - 1], file_references_[pos - 1]);
-          td_->quick_reply_manager_->on_send_media_group_file_reference_error(shortcut_id_, std::move(random_ids_));
-          return;
-        } else {
-          LOG(ERROR) << "Receive file reference error " << status << ", but file_ids = " << file_ids_
-                     << ", message_count = " << file_ids_.size();
-        }
-      }
-    }
-    td_->quick_reply_manager_->on_failed_send_quick_reply_messages(shortcut_id_, std::move(random_ids_),
-                                                                   std::move(status));
-  }
-};
-
-class QuickReplyManager::EditQuickReplyMessageQuery final : public Td::ResultHandler {
-  QuickReplyShortcutId shortcut_id_;
-  MessageId message_id_;
-  int64 edit_generation_ = 0;
-  FileUploadId file_upload_id_;
-  FileUploadId thumbnail_file_upload_id_;
-  FileId cover_file_id_;
-  string file_reference_;
-  string cover_file_reference_;
-  bool was_uploaded_ = false;
-  bool was_thumbnail_uploaded_ = false;
-
- public:
-  void send(const QuickReplyMessage *m, telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-    CHECK(m != nullptr);
-    CHECK(m->edited_content != nullptr);
-    CHECK(m->edit_generation > 0);
-    shortcut_id_ = m->shortcut_id;
-    message_id_ = m->message_id;
-    edit_generation_ = m->edit_generation;
-    file_upload_id_ = m->edited_file_upload_id;
-    thumbnail_file_upload_id_ = m->edited_thumbnail_file_upload_id;
-    cover_file_id_ = get_message_content_cover_any_file_id(m->edited_content.get());
-    file_reference_ = FileManager::extract_file_reference(input_media);
-    cover_file_reference_ = FileManager::extract_cover_file_reference(input_media);
-    was_uploaded_ = FileManager::extract_was_uploaded(input_media);
-    was_thumbnail_uploaded_ = FileManager::extract_was_thumbnail_uploaded(input_media);
-
-    auto *content = m->edited_content.get();
-    const auto *text = get_message_content_text(content);
-    vector<telegram_api::object_ptr<telegram_api::MessageEntity>> entities;
-    int32 flags = telegram_api::messages_editMessage::QUICK_REPLY_SHORTCUT_ID_MASK;
-    if (text != nullptr) {
-      entities = get_input_message_entities(td_->user_manager_.get(), text, "EditQuickReplyMessageQuery");
-      if (!entities.empty()) {
-        flags |= telegram_api::messages_editMessage::ENTITIES_MASK;
-      }
-      flags |= telegram_api::messages_editMessage::MESSAGE_MASK;
-    }
-    if (m->edited_invert_media) {
-      flags |= telegram_api::messages_editMessage::INVERT_MEDIA_MASK;
-    }
-    if (m->edited_disable_web_page_preview) {
-      flags |= telegram_api::messages_editMessage::NO_WEBPAGE_MASK;
-    }
-    if (input_media != nullptr) {
-      flags |= telegram_api::messages_editMessage::MEDIA_MASK;
-    }
-
-    CHECK(m->shortcut_id.is_server());
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_editMessage(
-            flags, false /*ignored*/, false /*ignored*/, telegram_api::make_object<telegram_api::inputPeerSelf>(),
-            m->message_id.get_server_message_id().get(), text != nullptr ? text->text : string(),
-            std::move(input_media), nullptr, std::move(entities), 0, m->shortcut_id.get()),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_editMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (was_thumbnail_uploaded_) {
-      CHECK(thumbnail_file_upload_id_.is_valid());
-      // always delete partial remote location for the thumbnail, because it can't be reused anyway
-      td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id_);
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditQuickReplyMessageQuery: " << to_string(ptr);
-    td_->quick_reply_manager_->on_edit_quick_reply_message(shortcut_id_, message_id_, edit_generation_, file_upload_id_,
-                                                           was_uploaded_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (G()->close_flag()) {
-      // do not send error, message will be re-edited after restart
-      return;
-    }
-    if (status.message() == "MESSAGE_NOT_MODIFIED") {
-      if (was_thumbnail_uploaded_) {
-        CHECK(thumbnail_file_upload_id_.is_valid());
-        // always delete partial remote location for the thumbnail, because it can't be reused anyway
-        td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id_);
-      }
-
-      return td_->quick_reply_manager_->on_edit_quick_reply_message(shortcut_id_, message_id_, edit_generation_,
-                                                                    file_upload_id_, was_uploaded_, nullptr);
-    }
-    // checks for file reference and upload errors
-    td_->quick_reply_manager_->fail_edit_quick_reply_message(
-        shortcut_id_, message_id_, edit_generation_, file_upload_id_, thumbnail_file_upload_id_, cover_file_id_,
-        file_reference_, cover_file_reference_, was_uploaded_, was_thumbnail_uploaded_, std::move(status));
-  }
-};
-
-class QuickReplyManager::UploadMediaCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->quick_reply_manager(), &QuickReplyManager::on_upload_media, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->quick_reply_manager(), &QuickReplyManager::on_upload_media_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-class QuickReplyManager::UploadThumbnailCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->quick_reply_manager(), &QuickReplyManager::on_upload_thumbnail, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->quick_reply_manager(), &QuickReplyManager::on_upload_thumbnail, file_upload_id, nullptr);
-  }
-};
-
-QuickReplyManager::QuickReplyMessage::~QuickReplyMessage() = default;
-
-template <class StorerT>
-void QuickReplyManager::QuickReplyMessage::store(StorerT &storer) const {
-  bool is_server = message_id.is_server();
-  bool has_edit_date = edit_date != 0;
-  bool has_random_id = !is_server && random_id != 0;
-  bool has_reply_to_message_id = reply_to_message_id != MessageId();
-  bool has_send_emoji = !is_server && !send_emoji.empty();
-  bool has_via_bot_user_id = via_bot_user_id != UserId();
-  bool has_legacy_layer = legacy_layer != 0;
-  bool has_send_error_code = !is_server && send_error_code != 0;
-  bool has_send_error_message = !is_server && !send_error_message.empty();
-  bool has_try_resend_at = !is_server && try_resend_at != 0;
-  bool has_media_album_id = media_album_id != 0;
-  bool has_reply_markup = reply_markup != nullptr;
-  bool has_inline_query_id = inline_query_id != 0;
-  bool has_inline_result_id = !inline_result_id.empty();
-  bool has_edited_content = edited_content != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_edit_date);
-  STORE_FLAG(has_random_id);
-  STORE_FLAG(has_reply_to_message_id);
-  STORE_FLAG(has_send_emoji);
-  STORE_FLAG(has_via_bot_user_id);
-  STORE_FLAG(is_failed_to_send);
-  STORE_FLAG(disable_notification);
-  STORE_FLAG(invert_media);
-  STORE_FLAG(from_background);
-  STORE_FLAG(disable_web_page_preview);
-  STORE_FLAG(hide_via_bot);
-  STORE_FLAG(has_legacy_layer);
-  STORE_FLAG(has_send_error_code);
-  STORE_FLAG(has_send_error_message);
-  STORE_FLAG(has_try_resend_at);
-  STORE_FLAG(has_media_album_id);
-  STORE_FLAG(has_reply_markup);
-  STORE_FLAG(has_inline_query_id);
-  STORE_FLAG(has_inline_result_id);
-  STORE_FLAG(has_edited_content);
-  STORE_FLAG(edited_invert_media);
-  STORE_FLAG(edited_disable_web_page_preview);
-  END_STORE_FLAGS();
-  td::store(message_id, storer);
-  td::store(shortcut_id, storer);
-  if (has_edit_date) {
-    td::store(edit_date, storer);
-  }
-  if (has_random_id) {
-    td::store(random_id, storer);
-  }
-  if (has_reply_to_message_id) {
-    td::store(reply_to_message_id, storer);
-  }
-  if (has_send_emoji) {
-    td::store(send_emoji, storer);
-  }
-  if (has_via_bot_user_id) {
-    td::store(via_bot_user_id, storer);
-  }
-  if (has_legacy_layer) {
-    td::store(legacy_layer, storer);
-  }
-  if (has_send_error_code) {
-    td::store(send_error_code, storer);
-  }
-  if (has_send_error_message) {
-    td::store(send_error_message, storer);
-  }
-  if (has_try_resend_at) {
-    td::store_time(try_resend_at, storer);
-  }
-  if (has_media_album_id) {
-    td::store(media_album_id, storer);
-  }
-  store_message_content(content.get(), storer);
-  if (has_reply_markup) {
-    td::store(reply_markup, storer);
-  }
-  if (has_inline_query_id) {
-    td::store(inline_query_id, storer);
-  }
-  if (has_inline_result_id) {
-    td::store(inline_result_id, storer);
-  }
-  if (has_edited_content) {
-    store_message_content(edited_content.get(), storer);
-  }
-}
-
-template <class ParserT>
-void QuickReplyManager::QuickReplyMessage::parse(ParserT &parser) {
-  bool has_edit_date;
-  bool has_random_id;
-  bool has_reply_to_message_id;
-  bool has_send_emoji;
-  bool has_via_bot_user_id;
-  bool has_legacy_layer;
-  bool has_send_error_code;
-  bool has_send_error_message;
-  bool has_try_resend_at;
-  bool has_media_album_id;
-  bool has_reply_markup;
-  bool has_inline_query_id;
-  bool has_inline_result_id;
-  bool has_edited_content;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_edit_date);
-  PARSE_FLAG(has_random_id);
-  PARSE_FLAG(has_reply_to_message_id);
-  PARSE_FLAG(has_send_emoji);
-  PARSE_FLAG(has_via_bot_user_id);
-  PARSE_FLAG(is_failed_to_send);
-  PARSE_FLAG(disable_notification);
-  PARSE_FLAG(invert_media);
-  PARSE_FLAG(from_background);
-  PARSE_FLAG(disable_web_page_preview);
-  PARSE_FLAG(hide_via_bot);
-  PARSE_FLAG(has_legacy_layer);
-  PARSE_FLAG(has_send_error_code);
-  PARSE_FLAG(has_send_error_message);
-  PARSE_FLAG(has_try_resend_at);
-  PARSE_FLAG(has_media_album_id);
-  PARSE_FLAG(has_reply_markup);
-  PARSE_FLAG(has_inline_query_id);
-  PARSE_FLAG(has_inline_result_id);
-  PARSE_FLAG(has_edited_content);
-  PARSE_FLAG(edited_invert_media);
-  PARSE_FLAG(edited_disable_web_page_preview);
-  END_PARSE_FLAGS();
-  td::parse(message_id, parser);
-  td::parse(shortcut_id, parser);
-  if (has_edit_date) {
-    td::parse(edit_date, parser);
-  }
-  if (has_random_id) {
-    td::parse(random_id, parser);
-  }
-  if (has_reply_to_message_id) {
-    td::parse(reply_to_message_id, parser);
-  }
-  if (has_send_emoji) {
-    td::parse(send_emoji, parser);
-  }
-  if (has_via_bot_user_id) {
-    td::parse(via_bot_user_id, parser);
-  }
-  if (has_legacy_layer) {
-    td::parse(legacy_layer, parser);
-  }
-  if (has_send_error_code) {
-    td::parse(send_error_code, parser);
-  }
-  if (has_send_error_message) {
-    td::parse(send_error_message, parser);
-  }
-  if (has_try_resend_at) {
-    td::parse_time(try_resend_at, parser);
-  }
-  if (has_media_album_id) {
-    td::parse(media_album_id, parser);
-  }
-  parse_message_content(content, parser);
-  if (has_reply_markup) {
-    td::parse(reply_markup, parser);
-  }
-  if (has_inline_query_id) {
-    td::parse(inline_query_id, parser);
-  }
-  if (has_inline_result_id) {
-    td::parse(inline_result_id, parser);
-  }
-  if (has_edited_content) {
-    parse_message_content(edited_content, parser);
-  }
-}
-
-QuickReplyManager::Shortcut::~Shortcut() = default;
-
-template <class StorerT>
-void QuickReplyManager::Shortcut::store(StorerT &storer) const {
-  int32 server_total_count = 0;
-  int32 local_total_count = 0;
-  for (const auto &message : messages_) {
-    if (message->message_id.is_server()) {
-      server_total_count++;
-    } else {
-      local_total_count++;
-    }
-  }
-  CHECK(server_total_count <= server_total_count_);
-  CHECK(local_total_count <= local_total_count_);
-
-  bool has_server_total_count = server_total_count != 0;
-  bool has_local_total_count = local_total_count != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_server_total_count);
-  STORE_FLAG(has_local_total_count);
-  END_STORE_FLAGS();
-  td::store(name_, storer);
-  td::store(shortcut_id_, storer);
-  if (has_server_total_count) {
-    td::store(server_total_count, storer);
-  }
-  if (has_local_total_count) {
-    td::store(local_total_count, storer);
-  }
-  for (const auto &message : messages_) {
-    td::store(message, storer);
-  }
-}
-
-template <class ParserT>
-void QuickReplyManager::Shortcut::parse(ParserT &parser) {
-  bool has_server_total_count;
-  bool has_local_total_count;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_server_total_count);
-  PARSE_FLAG(has_local_total_count);
-  END_PARSE_FLAGS();
-  td::parse(name_, parser);
-  td::parse(shortcut_id_, parser);
-  if (has_server_total_count) {
-    td::parse(server_total_count_, parser);
-  }
-  if (has_local_total_count) {
-    td::parse(local_total_count_, parser);
-  }
-  if (server_total_count_ < 0 || local_total_count_ < 0) {
-    return parser.set_error("Wrong message count");
-  }
-  auto size = static_cast<size_t>(server_total_count_) + static_cast<size_t>(local_total_count_);
-  if (parser.get_left_len() < size) {
-    return parser.set_error("Wrong message count");
-  }
-  messages_ = vector<unique_ptr<QuickReplyMessage>>(size);
-  for (auto &message : messages_) {
-    td::parse(message, parser);
-  }
-}
-
-template <class StorerT>
-void QuickReplyManager::Shortcuts::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(shortcuts_, storer);
-}
-
-template <class ParserT>
-void QuickReplyManager::Shortcuts::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(shortcuts_, parser);
-}
-
-QuickReplyManager::QuickReplyManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_media_callback_ = std::make_shared<UploadMediaCallback>();
-  upload_thumbnail_callback_ = std::make_shared<UploadThumbnailCallback>();
-}
-
-void QuickReplyManager::tear_down() {
-  parent_.reset();
-}
-
-bool QuickReplyManager::is_shortcut_name_letter(uint32 code) {
-  auto category = get_unicode_simple_category(code);
-  if (code == '_' || code == 0x200c || code == 0xb7 || (0xd80 <= code && code <= 0xdff)) {
-    return true;
-  }
-  switch (category) {
-    case UnicodeSimpleCategory::DecimalNumber:
-    case UnicodeSimpleCategory::Letter:
-      return true;
-    default:
-      return false;
-  }
-}
-
-Status QuickReplyManager::check_shortcut_name(CSlice name) {
-  if (!check_utf8(name)) {
-    return Status::Error("Strings must be encoded in UTF-8");
-  }
-  int32 length = 0;
-  auto *ptr = name.ubegin();
-  while (ptr != name.uend()) {
-    uint32 code;
-    ptr = next_utf8_unsafe(ptr, &code);
-    if (!is_shortcut_name_letter(code)) {
-      return Status::Error("A letter is not allowed");
-    }
-    length++;
-  }
-  if (length == 0) {
-    return Status::Error("Name must be non-empty");
-  }
-  if (length > 32) {
-    return Status::Error("Name is too long");
-  }
-  return Status::OK();
-}
-
-unique_ptr<QuickReplyManager::QuickReplyMessage> QuickReplyManager::create_message(
-    telegram_api::object_ptr<telegram_api::Message> message_ptr, const char *source) const {
-  LOG(DEBUG) << "Receive from " << source << " " << to_string(message_ptr);
-  CHECK(message_ptr != nullptr);
-
-  switch (message_ptr->get_id()) {
-    case telegram_api::messageEmpty::ID:
-      break;
-    case telegram_api::message::ID: {
-      auto message_id = MessageId::get_message_id(message_ptr, false);
-      auto message = move_tl_object_as<telegram_api::message>(message_ptr);
-      auto shortcut_id = QuickReplyShortcutId(message->quick_reply_shortcut_id_);
-      if (!shortcut_id.is_server()) {
-        LOG(ERROR) << "Receive invalid quick reply " << shortcut_id << " from " << source;
-        break;
-      }
-      if (!message_id.is_valid() || !message_id.is_server()) {
-        LOG(ERROR) << "Receive invalid " << message_id << " in quick reply " << shortcut_id << " from " << source;
-        break;
-      }
-      if (deleted_message_full_ids_.count({shortcut_id, message_id})) {
-        // a previously deleted message
-        break;
-      }
-
-      auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-      if (DialogId(message->peer_id_) != my_dialog_id || message->from_id_ != nullptr ||
-          message->fwd_from_ != nullptr || message->views_ != 0 || message->forwards_ != 0 ||
-          message->replies_ != nullptr || message->reactions_ != nullptr || message->ttl_period_ != 0 ||
-          !message->out_ || message->post_ || message->from_scheduled_ || message->pinned_ || message->noforwards_ ||
-          message->mentioned_ || !message->restriction_reason_.empty() || !message->post_author_.empty() ||
-          message->from_boosts_applied_ != 0 || message->effect_ != 0) {
-        LOG(ERROR) << "Receive an invalid quick reply from " << source << ": " << to_string(message);
-      }
-      if (message->saved_peer_id_ != nullptr) {
-        LOG(DEBUG) << "Receive unneeded Saved Messages topic in quick reply " << message_id << " from " << source;
-      }
-
-      UserId via_bot_user_id = UserId(message->via_bot_id_);
-      if (via_bot_user_id != UserId() && !via_bot_user_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << via_bot_user_id << " from " << source;
-        via_bot_user_id = UserId();
-      }
-      auto media_album_id = message->grouped_id_;
-
-      MessageSelfDestructType ttl;
-      bool disable_web_page_preview = false;
-      auto content = get_message_content(
-          td_,
-          get_message_text(td_->user_manager_.get(), std::move(message->message_), std::move(message->entities_), true,
-                           td_->auth_manager_->is_bot(), 0, media_album_id != 0, source),
-          std::move(message->media_), my_dialog_id, message->date_, true, via_bot_user_id, &ttl,
-          &disable_web_page_preview, source);
-
-      auto reply_header = MessageReplyHeader(td_, std::move(message->reply_to_), my_dialog_id, message_id, -1, false);
-      if (reply_header.story_full_id_ != StoryFullId()) {
-        LOG(ERROR) << "Receive reply to " << reply_header.story_full_id_;
-        reply_header.story_full_id_ = {};
-      }
-      if (reply_header.replied_message_info_.is_external() ||
-          reply_header.replied_message_info_.get_reply_message_full_id(DialogId(), true).get_dialog_id() !=
-              DialogId()) {
-        LOG(ERROR) << "Receive reply to " << reply_header.replied_message_info_;
-        reply_header.replied_message_info_ = {};
-      }
-      auto reply_to_message_id = reply_header.replied_message_info_.get_same_chat_reply_to_message_id(true);
-
-      if (!ttl.is_empty()) {
-        LOG(ERROR) << "Wrong " << ttl << " received in " << message_id << " from " << source;
-        break;
-      }
-
-      auto content_type = content->get_type();
-      if (is_service_message_content(content_type) || content_type == MessageContentType::LiveLocation ||
-          is_expired_message_content(content_type) || content_type == MessageContentType::Poll ||
-          content_type == MessageContentType::PaidMedia) {
-        LOG(ERROR) << "Receive " << content_type << " from " << source;
-        break;
-      }
-
-      auto result = make_unique<QuickReplyMessage>();
-      result->shortcut_id = shortcut_id;
-      result->message_id = message_id;
-      result->edit_date = max(message->edit_date_, 0);
-      result->disable_web_page_preview = disable_web_page_preview;
-      result->reply_to_message_id = reply_to_message_id;
-      result->via_bot_user_id = via_bot_user_id;
-      result->disable_notification = message->silent_;
-      result->legacy_layer = (message->legacy_ ? MTPROTO_LAYER : 0);
-      result->invert_media = message->invert_media_;
-      result->content = std::move(content);
-      result->reply_markup =
-          get_reply_markup(std::move(message->reply_markup_), td_->auth_manager_->is_bot(), true, false);
-
-      if (media_album_id != 0) {
-        if (!is_allowed_media_group_content(content_type)) {
-          if (content_type != MessageContentType::Unsupported) {
-            LOG(ERROR) << "Receive media group identifier " << media_album_id << " in " << message_id
-                       << " with content "
-                       << oneline(to_string(get_quick_reply_message_message_content_object(result.get())));
-          }
-        } else {
-          result->media_album_id = media_album_id;
-        }
-      }
-
-      Dependencies dependencies;
-      add_quick_reply_message_dependencies(dependencies, result.get());
-      for (auto dependent_dialog_id : dependencies.get_dialog_ids()) {
-        td_->dialog_manager_->force_create_dialog(dependent_dialog_id, source, true);
-      }
-
-      return result;
-    }
-    case telegram_api::messageService::ID:
-      LOG(ERROR) << "Receive " << to_string(message_ptr);
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return nullptr;
-}
-
-void QuickReplyManager::add_quick_reply_message_dependencies(Dependencies &dependencies,
-                                                             const QuickReplyMessage *m) const {
-  auto is_bot = td_->auth_manager_->is_bot();
-  dependencies.add(m->via_bot_user_id);
-  add_message_content_dependencies(dependencies, m->content.get(), is_bot);
-  if (m->edited_content != nullptr) {
-    add_message_content_dependencies(dependencies, m->edited_content.get(), is_bot);
-  }
-  add_reply_markup_dependencies(dependencies, m->reply_markup.get());
-}
-
-bool QuickReplyManager::can_edit_quick_reply_message(const QuickReplyMessage *m) const {
-  return m->message_id.is_server() && !m->via_bot_user_id.is_valid() &&
-         is_editable_message_content(m->content->get_type()) && m->content->get_type() != MessageContentType::Game;
-}
-
-bool QuickReplyManager::can_resend_quick_reply_message(const QuickReplyMessage *m) const {
-  if (m->send_error_code != 429) {
-    return false;
-  }
-  return true;
-}
-
-td_api::object_ptr<td_api::MessageSendingState> QuickReplyManager::get_message_sending_state_object(
-    const QuickReplyMessage *m) const {
-  CHECK(m != nullptr);
-  if (m->message_id.is_yet_unsent()) {
-    return td_api::make_object<td_api::messageSendingStatePending>(0);
-  }
-  if (m->is_failed_to_send) {
-    auto can_retry = can_resend_quick_reply_message(m);
-    auto error_code = m->send_error_code > 0 ? m->send_error_code : 400;
-    auto need_another_reply_quote =
-        can_retry && error_code == 400 && m->send_error_message == CSlice("QUOTE_TEXT_INVALID");
-    return td_api::make_object<td_api::messageSendingStateFailed>(
-        td_api::make_object<td_api::error>(error_code, m->send_error_message), can_retry, false,
-        need_another_reply_quote, false, 0, max(m->try_resend_at - Time::now(), 0.0));
-  }
-  return nullptr;
-}
-
-td_api::object_ptr<td_api::MessageContent> QuickReplyManager::get_quick_reply_message_message_content_object(
-    const QuickReplyMessage *m) const {
-  if (m->edited_content != nullptr) {
-    return get_message_content_object(m->edited_content.get(), td_, DialogId(), MessageId(), false, DialogId(), 0,
-                                      false, true, -1, m->edited_invert_media, m->edited_disable_web_page_preview);
-  }
-  return get_message_content_object(m->content.get(), td_, DialogId(), m->message_id, false, DialogId(), 0, false, true,
-                                    -1, m->invert_media, m->disable_web_page_preview);
-}
-
-td_api::object_ptr<td_api::quickReplyMessage> QuickReplyManager::get_quick_reply_message_object(
-    const QuickReplyMessage *m, const char *source) const {
-  CHECK(m != nullptr);
-  auto can_be_edited = can_edit_quick_reply_message(m);
-  return td_api::make_object<td_api::quickReplyMessage>(
-      m->message_id.get(), get_message_sending_state_object(m), can_be_edited, m->reply_to_message_id.get(),
-      td_->user_manager_->get_user_id_object(m->via_bot_user_id, "via_bot_user_id"), m->media_album_id,
-      get_quick_reply_message_message_content_object(m),
-      get_reply_markup_object(td_->user_manager_.get(), m->reply_markup));
-}
-
-int32 QuickReplyManager::get_shortcut_message_count(const Shortcut *s) {
-  return s->server_total_count_ + s->local_total_count_;
-}
-
-bool QuickReplyManager::have_all_shortcut_messages(const Shortcut *s) {
-  return static_cast<int32>(s->messages_.size()) == get_shortcut_message_count(s);
-}
-
-td_api::object_ptr<td_api::quickReplyShortcut> QuickReplyManager::get_quick_reply_shortcut_object(
-    const Shortcut *s, const char *source) const {
-  CHECK(s != nullptr);
-  CHECK(!s->messages_.empty());
-  return td_api::make_object<td_api::quickReplyShortcut>(s->shortcut_id_.get(), s->name_,
-                                                         get_quick_reply_message_object(s->messages_[0].get(), source),
-                                                         get_shortcut_message_count(s));
-}
-
-void QuickReplyManager::get_quick_reply_shortcuts(Promise<Unit> &&promise) {
-  load_quick_reply_shortcuts();
-  if (shortcuts_.are_inited_) {
-    return promise.set_value(Unit());
-  }
-
-  shortcuts_.load_queries_.push_back(std::move(promise));
-  if (shortcuts_.load_queries_.size() != 1) {
-    return;
-  }
-  reload_quick_reply_shortcuts();
-}
-
-void QuickReplyManager::reload_quick_reply_shortcuts() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  load_quick_reply_shortcuts();
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::messages_QuickReplies>> r_shortcuts) {
-        send_closure(actor_id, &QuickReplyManager::on_reload_quick_reply_shortcuts, std::move(r_shortcuts));
-      });
-  td_->create_handler<GetQuickRepliesQuery>(std::move(promise))->send(get_shortcuts_hash());
-}
-
-void QuickReplyManager::on_reload_quick_reply_shortcuts(
-    Result<telegram_api::object_ptr<telegram_api::messages_QuickReplies>> r_shortcuts) {
-  G()->ignore_result_if_closing(r_shortcuts);
-  if (r_shortcuts.is_error()) {
-    return on_load_quick_reply_fail(r_shortcuts.move_as_error());
-  }
-  auto shortcuts_ptr = r_shortcuts.move_as_ok();
-  switch (shortcuts_ptr->get_id()) {
-    case telegram_api::messages_quickRepliesNotModified::ID:
-      if (!shortcuts_.are_inited_) {
-        shortcuts_.are_inited_ = true;
-        save_quick_reply_shortcuts();
-        send_update_quick_reply_shortcuts();
-      }
-      break;
-    case telegram_api::messages_quickReplies::ID: {
-      auto shortcuts = telegram_api::move_object_as<telegram_api::messages_quickReplies>(shortcuts_ptr);
-      td_->user_manager_->on_get_users(std::move(shortcuts->users_), "messages.quickReplies");
-      td_->chat_manager_->on_get_chats(std::move(shortcuts->chats_), "messages.quickReplies");
-
-      FlatHashMap<MessageId, telegram_api::object_ptr<telegram_api::Message>, MessageIdHash> message_id_to_message;
-      for (auto &message : shortcuts->messages_) {
-        auto message_id = MessageId::get_message_id(message, false);
-        if (!message_id.is_valid()) {
-          continue;
-        }
-        message_id_to_message[message_id] = std::move(message);
-      }
-
-      FlatHashSet<QuickReplyShortcutId, QuickReplyShortcutIdHash> old_shortcut_ids;
-      for (auto &shortcut : shortcuts_.shortcuts_) {
-        CHECK(shortcut->shortcut_id_.is_valid());
-        old_shortcut_ids.insert(shortcut->shortcut_id_);
-      }
-      FlatHashSet<QuickReplyShortcutId, QuickReplyShortcutIdHash> added_shortcut_ids;
-      FlatHashSet<string> added_shortcut_names;
-      vector<unique_ptr<Shortcut>> new_shortcuts;
-      vector<QuickReplyShortcutId> changed_shortcut_ids;
-      vector<QuickReplyShortcutId> changed_message_shortcut_ids;
-      vector<QuickReplyShortcutId> deleted_shortcut_ids;
-      for (auto &quick_reply : shortcuts->quick_replies_) {
-        auto shortcut_id = QuickReplyShortcutId(quick_reply->shortcut_id_);
-        if (!shortcut_id.is_server() || quick_reply->shortcut_.empty() || quick_reply->count_ <= 0 ||
-            quick_reply->top_message_ <= 0) {
-          LOG(ERROR) << "Receive " << to_string(quick_reply);
-          continue;
-        }
-        if (added_shortcut_ids.count(shortcut_id) || added_shortcut_names.count(quick_reply->shortcut_)) {
-          LOG(ERROR) << "Receive duplicate " << to_string(quick_reply);
-          continue;
-        }
-        if (deleted_shortcut_ids_.count(shortcut_id)) {
-          continue;
-        }
-        added_shortcut_ids.insert(shortcut_id);
-        added_shortcut_names.insert(quick_reply->shortcut_);
-
-        MessageId first_message_id(ServerMessageId(quick_reply->top_message_));
-        auto it = message_id_to_message.find(first_message_id);
-        if (it == message_id_to_message.end()) {
-          LOG(ERROR) << "Can't find last " << first_message_id << " in " << shortcut_id;
-          continue;
-        }
-        auto message = create_message(std::move(it->second), "on_reload_quick_reply_shortcuts");
-        message_id_to_message.erase(it);
-        if (message == nullptr) {
-          continue;
-        }
-        if (message->shortcut_id != shortcut_id) {
-          LOG(ERROR) << "Receive message from " << message->shortcut_id << " instead of " << shortcut_id;
-          continue;
-        }
-
-        auto shortcut = td::make_unique<Shortcut>();
-        shortcut->name_ = std::move(quick_reply->shortcut_);
-        shortcut->shortcut_id_ = shortcut_id;
-        shortcut->server_total_count_ = quick_reply->count_;
-        shortcut->messages_.push_back(std::move(message));
-
-        auto old_shortcut = get_shortcut(shortcut_id);
-        if (old_shortcut == nullptr) {
-          changed_shortcut_ids.push_back(shortcut_id);
-          changed_message_shortcut_ids.push_back(shortcut_id);
-          register_new_message(shortcut->messages_[0].get(), "on_reload_quick_reply_shortcuts 1");
-        } else {
-          bool is_shortcut_changed = false;
-          bool are_messages_changed = false;
-          update_shortcut_from(shortcut.get(), old_shortcut, true, &is_shortcut_changed, &are_messages_changed);
-          if (are_messages_changed) {
-            changed_message_shortcut_ids.push_back(shortcut_id);
-          }
-          if (is_shortcut_changed) {
-            changed_shortcut_ids.push_back(shortcut_id);
-          }
-          old_shortcut_ids.erase(shortcut_id);
-        }
-
-        new_shortcuts.push_back(std::move(shortcut));
-      }
-      for (auto shortcut_id : old_shortcut_ids) {
-        auto old_shortcut = get_shortcut(shortcut_id);
-        CHECK(old_shortcut != nullptr);
-        auto is_changed = td::remove_if(old_shortcut->messages_, [&](const unique_ptr<QuickReplyMessage> &message) {
-          if (message->message_id.is_server()) {
-            delete_message_files(message.get());
-            return true;
-          }
-          return false;
-        });
-        if (old_shortcut->messages_.empty()) {
-          CHECK(is_changed);
-          send_update_quick_reply_shortcut_deleted(old_shortcut);
-        } else {
-          // some local messages left
-          if (added_shortcut_names.count(old_shortcut->name_)) {
-            LOG(INFO) << "Local shortcut " << old_shortcut->name_ << " has been created server-side";
-            for (auto &shortcut : new_shortcuts) {
-              if (shortcut->name_ == old_shortcut->name_) {
-                LOG(INFO) << "Move local messages from " << old_shortcut->shortcut_id_ << " to "
-                          << shortcut->shortcut_id_;
-                CHECK(shortcut->local_total_count_ == 0);
-                shortcut->local_total_count_ = static_cast<int32>(old_shortcut->messages_.size());
-                for (auto &message : old_shortcut->messages_) {
-                  CHECK(message->shortcut_id == shortcut_id);
-                  unregister_message_content(message.get(), "on_reload_quick_reply_shortcuts 2");
-                  message->shortcut_id = shortcut->shortcut_id_;
-                  register_message_content(message.get(), "on_reload_quick_reply_shortcuts 3");
-                }
-                append(shortcut->messages_, std::move(old_shortcut->messages_));
-                sort_quick_reply_messages(shortcut->messages_);
-                send_update_quick_reply_shortcut_deleted(old_shortcut);
-                changed_shortcut_ids.push_back(shortcut->shortcut_id_);
-                changed_message_shortcut_ids.push_back(shortcut->shortcut_id_);
-                persistent_shortcut_ids_[shortcut_id] = shortcut->shortcut_id_;
-                break;
-              }
-            }
-            continue;
-          }
-
-          LOG(INFO) << "Keep local shortcut " << old_shortcut->name_;
-          auto shortcut = td::make_unique<Shortcut>();
-          shortcut->name_ = std::move(old_shortcut->name_);
-          shortcut->shortcut_id_ = old_shortcut->shortcut_id_;
-          shortcut->server_total_count_ = 0;
-          shortcut->local_total_count_ = static_cast<int32>(old_shortcut->messages_.size());
-          shortcut->messages_ = std::move(old_shortcut->messages_);
-          if (is_changed) {
-            changed_shortcut_ids.push_back(shortcut->shortcut_id_);
-            changed_message_shortcut_ids.push_back(shortcut->shortcut_id_);
-          }
-          new_shortcuts.push_back(std::move(shortcut));
-        }
-      }
-      bool is_list_changed = is_shortcut_list_changed(new_shortcuts);
-      shortcuts_.shortcuts_ = std::move(new_shortcuts);
-      shortcuts_.are_inited_ = true;
-
-      save_quick_reply_shortcuts();
-      for (auto shortcut_id : changed_shortcut_ids) {
-        send_update_quick_reply_shortcut(get_shortcut(shortcut_id), "on_reload_quick_reply_shortcuts");
-      }
-      for (auto shortcut_id : changed_message_shortcut_ids) {
-        const auto *s = get_shortcut(shortcut_id);
-        send_update_quick_reply_shortcut_messages(s, "on_reload_quick_reply_shortcuts");
-      }
-      if (is_list_changed) {
-        send_update_quick_reply_shortcuts();
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  on_load_quick_reply_success();
-}
-
-bool QuickReplyManager::is_shortcut_list_changed(const vector<unique_ptr<Shortcut>> &new_shortcuts) const {
-  if (!shortcuts_.are_inited_ || shortcuts_.shortcuts_.size() != new_shortcuts.size()) {
-    return true;
-  }
-  for (size_t i = 0; i < new_shortcuts.size(); i++) {
-    if (shortcuts_.shortcuts_[i]->shortcut_id_ != new_shortcuts[i]->shortcut_id_) {
-      return true;
-    }
-  }
-  return false;
-}
-
-void QuickReplyManager::on_load_quick_reply_success() {
-  for (auto &shortcut : shortcuts_.shortcuts_) {
-    reload_quick_reply_messages(shortcut->shortcut_id_, Auto());
-  }
-  set_promises(shortcuts_.load_queries_);
-}
-
-void QuickReplyManager::on_load_quick_reply_fail(Status error) {
-  fail_promises(shortcuts_.load_queries_, std::move(error));
-}
-
-int64 QuickReplyManager::get_shortcuts_hash() const {
-  vector<uint64> numbers;
-  for (auto &shortcut : shortcuts_.shortcuts_) {
-    for (auto &message : shortcut->messages_) {
-      if (message->message_id.is_server()) {
-        CHECK(shortcut->shortcut_id_.is_server());
-        numbers.push_back(shortcut->shortcut_id_.get());
-        numbers.push_back(get_md5_string_hash(shortcut->name_));
-        numbers.push_back(message->message_id.get_server_message_id().get());
-        numbers.push_back(message->edit_date);
-        break;
-      }
-    }
-  }
-  return get_vector_hash(numbers);
-}
-
-void QuickReplyManager::set_quick_reply_shortcut_name(QuickReplyShortcutId shortcut_id, const string &name,
-                                                      Promise<Unit> &&promise) {
-  load_quick_reply_shortcuts();
-  const auto *shortcut = get_shortcut(shortcut_id);
-  if (shortcut == nullptr) {
-    return promise.set_error(Status::Error(400, "Shortcut not found"));
-  }
-  if (check_shortcut_name(name).is_error()) {
-    return promise.set_error(Status::Error(400, "Shortcut name is invalid"));
-  }
-  if (!shortcut_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Shortcut isn't created yet"));
-  }
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), shortcut_id, name, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_ok()) {
-          send_closure(actor_id, &QuickReplyManager::on_set_quick_reply_shortcut_name, shortcut_id, name,
-                       std::move(promise));
-        } else {
-          promise.set_error(result.move_as_error());
-        }
-      });
-  set_quick_reply_shortcut_name_on_server(shortcut_id, name, std::move(query_promise));
-}
-
-void QuickReplyManager::set_quick_reply_shortcut_name_on_server(QuickReplyShortcutId shortcut_id, const string &name,
-                                                                Promise<Unit> &&promise) {
-  CHECK(shortcut_id.is_server());
-  td_->create_handler<EditQuickReplyShortcutQuery>(std::move(promise))->send(shortcut_id, name);
-}
-
-void QuickReplyManager::on_set_quick_reply_shortcut_name(QuickReplyShortcutId shortcut_id, const string &name,
-                                                         Promise<Unit> &&promise) {
-  auto *shortcut = get_shortcut(shortcut_id);
-  if (shortcut == nullptr || shortcut->name_ == name) {
-    return promise.set_value(Unit());
-  }
-  shortcut->name_ = name;
-  send_update_quick_reply_shortcut(shortcut, "on_set_quick_reply_shortcut_name");
-  save_quick_reply_shortcuts();
-  promise.set_value(Unit());
-}
-
-void QuickReplyManager::delete_quick_reply_shortcut(QuickReplyShortcutId shortcut_id, Promise<Unit> &&promise) {
-  load_quick_reply_shortcuts();
-  auto it = get_shortcut_it(shortcut_id);
-  if (it == shortcuts_.shortcuts_.end()) {
-    return promise.set_error(Status::Error(400, "Shortcut not found"));
-  }
-  send_update_quick_reply_shortcut_deleted(it->get());
-  shortcuts_.shortcuts_.erase(it);
-  save_quick_reply_shortcuts();
-  send_update_quick_reply_shortcuts();
-
-  if (!shortcut_id.is_server()) {
-    return promise.set_value(Unit());
-  }
-
-  delete_quick_reply_shortcut_from_server(shortcut_id, std::move(promise));
-}
-
-void QuickReplyManager::delete_quick_reply_shortcut_from_server(QuickReplyShortcutId shortcut_id,
-                                                                Promise<Unit> &&promise) {
-  CHECK(shortcut_id.is_server());
-
-  deleted_shortcut_ids_.insert(shortcut_id);
-  td_->create_handler<DeleteQuickReplyShortcutQuery>(std::move(promise))->send(shortcut_id);
-}
-
-void QuickReplyManager::reorder_quick_reply_shortcuts(const vector<QuickReplyShortcutId> &shortcut_ids,
-                                                      Promise<Unit> &&promise) {
-  load_quick_reply_shortcuts();
-  FlatHashSet<QuickReplyShortcutId, QuickReplyShortcutIdHash> unique_shortcut_ids;
-  for (const auto &shortcut_id : shortcut_ids) {
-    if (get_shortcut(shortcut_id) == nullptr) {
-      return promise.set_error(Status::Error(400, "Shortcut not found"));
-    }
-    CHECK(shortcut_id.is_valid());
-    unique_shortcut_ids.insert(shortcut_id);
-  }
-  if (unique_shortcut_ids.size() != shortcut_ids.size()) {
-    return promise.set_error(Status::Error(400, "Duplicate shortcut identifiers specified"));
-  }
-  if (!shortcuts_.are_inited_) {
-    return promise.set_value(Unit());
-  }
-  auto old_shortcut_ids = get_shortcut_ids();
-  auto old_server_shortcut_ids = get_server_shortcut_ids();
-  vector<unique_ptr<Shortcut>> shortcuts;
-  for (const auto &shortcut_id : shortcut_ids) {
-    auto it = get_shortcut_it(shortcut_id);
-    CHECK(it != shortcuts_.shortcuts_.end() && *it != nullptr);
-    shortcuts.push_back(std::move(*it));
-  }
-  for (auto &shortcut : shortcuts_.shortcuts_) {
-    if (shortcut != nullptr) {
-      CHECK(unique_shortcut_ids.count(shortcut->shortcut_id_) == 0);
-      shortcuts.push_back(std::move(shortcut));
-    }
-  }
-  shortcuts_.shortcuts_ = std::move(shortcuts);
-  if (old_shortcut_ids == get_shortcut_ids()) {
-    return promise.set_value(Unit());
-  }
-  save_quick_reply_shortcuts();
-  send_update_quick_reply_shortcuts();
-
-  auto new_server_shortcut_ids = get_server_shortcut_ids();
-  if (new_server_shortcut_ids == old_server_shortcut_ids) {
-    return promise.set_value(Unit());
-  }
-
-  reorder_quick_reply_shortcuts_on_server(new_server_shortcut_ids, std::move(promise));
-}
-
-void QuickReplyManager::reorder_quick_reply_shortcuts_on_server(vector<QuickReplyShortcutId> shortcut_ids,
-                                                                Promise<Unit> &&promise) {
-  td_->create_handler<ReorderQuickRepliesQuery>(std::move(promise))->send(std::move(shortcut_ids));
-}
-
-void QuickReplyManager::update_quick_reply_message(telegram_api::object_ptr<telegram_api::Message> &&message_ptr) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  load_quick_reply_shortcuts();
-  auto message = create_message(std::move(message_ptr), "update_quick_reply_message");
-  if (message == nullptr) {
-    return;
-  }
-  auto shortcut_id = message->shortcut_id;
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return reload_quick_reply_messages(shortcut_id, Promise<Unit>());
-  }
-  on_get_quick_reply_message(s, std::move(message));
-}
-
-void QuickReplyManager::on_get_quick_reply_message(Shortcut *s, unique_ptr<QuickReplyMessage> message) {
-  CHECK(s->shortcut_id_ == message->shortcut_id);
-  auto it = get_message_it(s, message->message_id);
-  if (it == s->messages_.end()) {
-    register_new_message(message.get(), "on_get_quick_reply_message");
-    s->messages_.push_back(std::move(message));
-    s->server_total_count_++;
-    sort_quick_reply_messages(s->messages_);
-    send_update_quick_reply_shortcut(s, "on_get_quick_reply_message 1");
-  } else {
-    if (get_quick_reply_unique_id(it->get()) == get_quick_reply_unique_id(message.get())) {
-      return;
-    }
-    update_quick_reply_message(*it, std::move(message));
-    if (it == s->messages_.begin()) {
-      send_update_quick_reply_shortcut(s, "on_get_quick_reply_message 2");
-    }
-  }
-  send_update_quick_reply_shortcut_messages(s, "on_get_quick_reply_message 2");
-  save_quick_reply_shortcuts();
-}
-
-void QuickReplyManager::update_quick_reply_message(unique_ptr<QuickReplyMessage> &old_message,
-                                                   unique_ptr<QuickReplyMessage> &&new_message) {
-  CHECK(old_message != nullptr);
-  CHECK(new_message != nullptr);
-  CHECK(old_message->shortcut_id == new_message->shortcut_id);
-  CHECK(old_message->message_id == new_message->message_id);
-  CHECK(old_message->message_id.is_server());
-  if (old_message->edit_date > new_message->edit_date) {
-    LOG(INFO) << "Ignore update of " << old_message->message_id << " from " << old_message->shortcut_id
-              << " to its old version";
-    return;
-  }
-  auto old_file_ids = get_message_file_ids(old_message.get());
-  new_message->edited_content = std::move(old_message->edited_content);
-  new_message->edited_file_upload_id = old_message->edited_file_upload_id;
-  new_message->edited_thumbnail_file_upload_id = old_message->edited_thumbnail_file_upload_id;
-  new_message->edited_invert_media = old_message->edited_invert_media;
-  new_message->edited_disable_web_page_preview = old_message->edited_disable_web_page_preview;
-  new_message->edit_generation = old_message->edit_generation;
-  unregister_message_content(old_message.get(), "update_quick_reply_message");
-  old_message = std::move(new_message);
-  register_message_content(old_message.get(), "update_quick_reply_message");
-  change_message_files(old_message.get(), old_file_ids);
-}
-
-void QuickReplyManager::on_external_update_message_content(QuickReplyMessageFullId message_full_id, const char *source,
-                                                           bool expect_no_message) {
-  const auto *s = get_shortcut(message_full_id.get_quick_reply_shortcut_id());
-  auto message_id = message_full_id.get_message_id();
-  const auto *m = get_message(s, message_id);
-  if (expect_no_message && m == nullptr) {
-    return;
-  }
-  CHECK(m != nullptr);
-  if (s->messages_[0]->message_id == message_id) {
-    send_update_quick_reply_shortcut(s, "on_external_update_message_content");
-  }
-  send_update_quick_reply_shortcut_messages(s, "on_external_update_message_content");
-  // must not call save_quick_reply_shortcuts, because the message itself wasn't changed
-}
-
-void QuickReplyManager::delete_pending_message_web_page(QuickReplyMessageFullId message_full_id) {
-  auto *m = get_message_editable(message_full_id);
-  CHECK(has_message_content_web_page(m->content.get()));
-  unregister_message_content(m, "delete_pending_message_web_page");
-  remove_message_content_web_page(m->content.get());
-  register_message_content(m, "delete_pending_message_web_page");
-
-  // don't need to send updates, because the web page was pending
-
-  save_quick_reply_shortcuts();
-}
-
-void QuickReplyManager::delete_quick_reply_messages_from_updates(QuickReplyShortcutId shortcut_id,
-                                                                 const vector<MessageId> &message_ids) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  load_quick_reply_shortcuts();
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return;
-  }
-  for (auto message_id : message_ids) {
-    if (!message_id.is_server()) {
-      LOG(ERROR) << "Receive delete of " << message_ids;
-      return;
-    }
-  }
-  delete_quick_reply_messages(s, message_ids, "delete_quick_reply_messages_from_updates");
-}
-
-void QuickReplyManager::delete_quick_reply_messages(Shortcut *s, const vector<MessageId> &message_ids,
-                                                    const char *source) {
-  LOG(INFO) << "Delete " << message_ids << " from " << s->shortcut_id_ << " from " << source;
-  bool is_changed = false;
-  for (auto &message_id : message_ids) {
-    auto it = get_message_it(s, message_id);
-    if (it != s->messages_.end()) {
-      const auto *m = it->get();
-      delete_message_files(m);
-      if (message_id.is_server()) {
-        s->server_total_count_--;
-      } else {
-        if (m->media_album_id != 0 && m->message_id.is_yet_unsent()) {
-          send_closure_later(actor_id(this), &QuickReplyManager::on_upload_message_media_finished, m->media_album_id,
-                             m->shortcut_id, m->message_id, Status::OK());
-        }
-        s->local_total_count_--;
-      }
-      is_changed = true;
-      s->messages_.erase(it);
-    }
-    if (message_id.is_server()) {
-      deleted_message_full_ids_.insert({s->shortcut_id_, message_id});
-    }
-  }
-  if (s->messages_.empty()) {
-    send_update_quick_reply_shortcut_deleted(s);
-    shortcuts_.shortcuts_.erase(get_shortcut_it(s->shortcut_id_));
-    CHECK(is_changed);
-    send_update_quick_reply_shortcuts();
-    save_quick_reply_shortcuts();
-  } else if (is_changed) {
-    send_update_quick_reply_shortcut(s, source);
-    send_update_quick_reply_shortcut_messages(s, source);
-    save_quick_reply_shortcuts();
-  }
-}
-
-void QuickReplyManager::delete_quick_reply_shortcut_messages(QuickReplyShortcutId shortcut_id,
-                                                             const vector<MessageId> &message_ids,
-                                                             Promise<Unit> &&promise) {
-  load_quick_reply_shortcuts();
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return promise.set_error(Status::Error(400, "Shortcut not found"));
-  }
-  if (message_ids.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  vector<MessageId> deleted_server_message_ids;
-  for (auto &message_id : message_ids) {
-    if (!message_id.is_valid()) {
-      return promise.set_error(Status::Error(400, "Invalid message identifier"));
-    }
-
-    // message_id = get_persistent_message_id(s, message_id);
-    if (message_id.is_server()) {
-      deleted_server_message_ids.push_back(message_id);
-    }
-  }
-
-  delete_quick_reply_messages_on_server(shortcut_id, std::move(deleted_server_message_ids), std::move(promise));
-
-  delete_quick_reply_messages(s, message_ids, "delete_quick_reply_shortcut_messages");
-}
-
-void QuickReplyManager::delete_quick_reply_messages_on_server(QuickReplyShortcutId shortcut_id,
-                                                              const vector<MessageId> &message_ids,
-                                                              Promise<Unit> &&promise) {
-  if (message_ids.empty()) {
-    return promise.set_value(Unit());
-  }
-  td_->create_handler<DeleteQuickReplyMessagesQuery>(std::move(promise))->send(shortcut_id, message_ids);
-}
-
-telegram_api::object_ptr<telegram_api::InputQuickReplyShortcut> QuickReplyManager::get_input_quick_reply_shortcut(
-    QuickReplyShortcutId shortcut_id) const {
-  if (shortcut_id.is_server()) {
-    return telegram_api::make_object<telegram_api::inputQuickReplyShortcutId>(shortcut_id.get());
-  }
-  const auto *s = get_shortcut(shortcut_id);
-  CHECK(s != nullptr);
-  return telegram_api::make_object<telegram_api::inputQuickReplyShortcut>(s->name_);
-}
-
-Status QuickReplyManager::check_send_quick_reply_messages_response(
-    QuickReplyShortcutId shortcut_id, const telegram_api::object_ptr<telegram_api::Updates> &updates_ptr,
-    const vector<int64> &random_ids) {
-  if (updates_ptr->get_id() != telegram_api::updates::ID) {
-    return Status::Error("Receive unexpected updates class");
-  }
-  const auto &updates = static_cast<const telegram_api::updates *>(updates_ptr.get())->updates_;
-  FlatHashSet<int64> sent_random_ids;
-  for (auto &update : updates) {
-    if (update->get_id() == telegram_api::updateMessageID::ID) {
-      auto update_message_id = static_cast<const telegram_api::updateMessageID *>(update.get());
-      int64 random_id = update_message_id->random_id_;
-      if (random_id == 0) {
-        return Status::Error("Receive zero random_id");
-      }
-      if (!sent_random_ids.insert(random_id).second) {
-        return Status::Error("Receive duplicate random_id");
-      }
-    }
-  }
-  if (sent_random_ids.size() != random_ids.size()) {
-    return Status::Error("Receive duplicate random_id");
-  }
-  for (auto random_id : random_ids) {
-    if (sent_random_ids.count(random_id) != 1) {
-      return Status::Error("Don't receive expected random_id");
-    }
-  }
-  int32 new_shortcut_count = 0;
-  for (auto &update : updates) {
-    if (update->get_id() == telegram_api::updateNewQuickReply::ID) {
-      if (!QuickReplyShortcutId(
-               static_cast<const telegram_api::updateNewQuickReply *>(update.get())->quick_reply_->shortcut_id_)
-               .is_server()) {
-        return Status::Error("Receive unexpected new shortcut");
-      }
-      new_shortcut_count++;
-    }
-  }
-  if (new_shortcut_count >= 2 || (new_shortcut_count >= 1 && shortcut_id.is_server())) {
-    return Status::Error("Receive unexpected number of new shortcuts");
-  }
-  return Status::OK();
-}
-
-void QuickReplyManager::process_send_quick_reply_updates(QuickReplyShortcutId shortcut_id, FileUploadId file_upload_id,
-                                                         telegram_api::object_ptr<telegram_api::Updates> updates_ptr,
-                                                         vector<int64> random_ids) {
-  auto check_status = check_send_quick_reply_messages_response(shortcut_id, updates_ptr, random_ids);
-  if (check_status.is_error()) {
-    LOG(ERROR) << check_status << " for sending messages " << random_ids << ": " << to_string(updates_ptr);
-    if (file_upload_id.is_valid()) {
-      send_closure_later(G()->file_manager(), &FileManager::delete_partial_remote_location, file_upload_id);
-    }
-    on_failed_send_quick_reply_messages(shortcut_id, std::move(random_ids),
-                                        Status::Error(500, "Receive wrong response"));
-    return;
-  }
-
-  auto updates = telegram_api::move_object_as<telegram_api::updates>(updates_ptr);
-  td_->user_manager_->on_get_users(std::move(updates->users_), "process_send_quick_reply_updates");
-  td_->chat_manager_->on_get_chats(std::move(updates->chats_), "process_send_quick_reply_updates");
-
-  bool is_shortcut_new = false;
-  if (shortcut_id.is_local()) {
-    QuickReplyShortcutId new_shortcut_id;
-    for (auto &update : updates->updates_) {
-      if (update->get_id() == telegram_api::updateNewQuickReply::ID) {
-        new_shortcut_id = QuickReplyShortcutId(
-            static_cast<const telegram_api::updateNewQuickReply *>(update.get())->quick_reply_->shortcut_id_);
-        update = nullptr;
-      }
-    }
-    if (!new_shortcut_id.is_server()) {
-      for (const auto &update : updates->updates_) {
-        if (update != nullptr && update->get_id() == telegram_api::updateQuickReplyMessage::ID) {
-          auto &message = static_cast<const telegram_api::updateQuickReplyMessage *>(update.get())->message_;
-          if (message->get_id() == telegram_api::message::ID) {
-            new_shortcut_id = QuickReplyShortcutId(
-                static_cast<const telegram_api::message *>(message.get())->quick_reply_shortcut_id_);
-            break;
-          }
-        }
-      }
-    }
-    if (!new_shortcut_id.is_server()) {
-      LOG(ERROR) << "Failed to find new shortcut identifier for " << shortcut_id;
-      reload_quick_reply_shortcuts();
-      on_failed_send_quick_reply_messages(shortcut_id, std::move(random_ids),
-                                          Status::Error(500, "Receive wrong response"));
-      return;
-    }
-    auto it = get_shortcut_it(shortcut_id);
-    if (it != shortcuts_.shortcuts_.end() && (*it)->shortcut_id_ == shortcut_id) {
-      send_update_quick_reply_shortcut_deleted(it->get());
-
-      for (auto &message : (*it)->messages_) {
-        CHECK(message->shortcut_id == shortcut_id);
-        unregister_message_content(message.get(), "process_send_quick_reply_updates 1");
-        message->shortcut_id = new_shortcut_id;
-        register_message_content(message.get(), "process_send_quick_reply_updates 1");
-      }
-
-      auto *s = get_shortcut(new_shortcut_id);
-      if (s == nullptr) {
-        (*it)->shortcut_id_ = new_shortcut_id;
-        is_shortcut_new = true;
-      } else {
-        if ((*it)->last_assigned_message_id_ > s->last_assigned_message_id_) {
-          s->last_assigned_message_id_ = (*it)->last_assigned_message_id_;
-        }
-        for (auto &message : (*it)->messages_) {
-          CHECK(!message->message_id.is_server());
-          s->messages_.push_back(std::move(message));
-          s->local_total_count_++;
-        }
-        shortcuts_.shortcuts_.erase(it);
-      }
-      persistent_shortcut_ids_[shortcut_id] = new_shortcut_id;
-    } else if (get_shortcut(new_shortcut_id) == nullptr) {
-      if (file_upload_id.is_valid()) {
-        send_closure_later(G()->file_manager(), &FileManager::delete_partial_remote_location, file_upload_id);
-      }
-      return;
-    }
-    shortcut_id = new_shortcut_id;
-  }
-  auto *s = get_shortcut(shortcut_id);
-  CHECK(s != nullptr);
-
-  for (auto &random_id : random_ids) {
-    for (auto it = s->messages_.begin(); it != s->messages_.end(); ++it) {
-      if ((*it)->random_id == random_id && (*it)->message_id.is_yet_unsent()) {
-        MessageId new_message_id;
-        for (auto &update : updates->updates_) {
-          if (update != nullptr && update->get_id() == telegram_api::updateMessageID::ID &&
-              static_cast<const telegram_api::updateMessageID *>(update.get())->random_id_ == random_id) {
-            new_message_id =
-                MessageId(ServerMessageId(static_cast<const telegram_api::updateMessageID *>(update.get())->id_));
-            update = nullptr;
-          }
-        }
-        if (new_message_id.is_valid()) {
-          for (auto &update : updates->updates_) {
-            if (update != nullptr && update->get_id() == telegram_api::updateQuickReplyMessage::ID &&
-                MessageId::get_message_id(
-                    static_cast<const telegram_api::updateQuickReplyMessage *>(update.get())->message_, false) ==
-                    new_message_id) {
-              auto message = create_message(
-                  std::move(static_cast<telegram_api::updateQuickReplyMessage *>(update.get())->message_),
-                  "process_send_quick_reply_updates");
-              if (message != nullptr && message->shortcut_id == shortcut_id) {
-                update_sent_message_content_from_temporary_message(it->get(), message.get(), false);
-                unregister_message_content(it->get(), "process_send_quick_reply_updates 2");
-                auto old_message_it = get_message_it(s, message->message_id);
-                if (old_message_it == s->messages_.end()) {
-                  *it = std::move(message);
-                  register_new_message(it->get(), "process_send_quick_reply_updates 2");
-                  s->server_total_count_++;
-                } else {
-                  // the message has already been added
-                  update_quick_reply_message(*old_message_it, std::move(message));
-                  s->messages_.erase(it);
-                }
-                s->local_total_count_--;
-              }
-              update = nullptr;
-              break;
-            }
-          }
-        }
-
-        break;
-      }
-    }
-  }
-  if (file_upload_id.is_valid()) {
-    send_closure_later(G()->file_manager(), &FileManager::delete_partial_remote_location, file_upload_id);
-  }
-
-  sort_quick_reply_messages(s->messages_);
-  send_update_quick_reply_shortcut(s, "process_send_quick_reply_updates");
-  send_update_quick_reply_shortcut_messages(s, "process_send_quick_reply_updates");
-  if (is_shortcut_new) {
-    send_update_quick_reply_shortcuts();
-  }
-  save_quick_reply_shortcuts();
-}
-
-void QuickReplyManager::update_sent_message_content_from_temporary_message(const QuickReplyMessage *old_message,
-                                                                           QuickReplyMessage *new_message,
-                                                                           bool is_edit) {
-  CHECK(is_edit ? old_message->message_id.is_server() : old_message->message_id.is_yet_unsent());
-  CHECK(new_message->edited_content == nullptr);
-  update_sent_message_content_from_temporary_message(
-      is_edit ? old_message->edited_content : old_message->content,
-      is_edit ? old_message->edited_file_upload_id : old_message->file_upload_id, new_message->content,
-      is_edit || new_message->edit_date == 0);
-}
-
-void QuickReplyManager::update_sent_message_content_from_temporary_message(
-    const unique_ptr<MessageContent> &old_content, FileUploadId old_file_upload_id,
-    unique_ptr<MessageContent> &new_content, bool need_merge_files) {
-  MessageContentType old_content_type = old_content->get_type();
-  MessageContentType new_content_type = new_content->get_type();
-
-  need_merge_files = need_merge_files && old_file_upload_id.is_valid();
-  if (old_content_type != new_content_type) {
-    if (need_merge_files) {
-      td_->file_manager_->try_merge_documents(get_message_content_any_file_id(new_content.get()),
-                                              old_file_upload_id.get_file_id());
-    }
-  } else {
-    bool is_content_changed = false;
-    bool need_update = false;
-    merge_message_contents(td_, old_content.get(), new_content.get(), true, DialogId(), need_merge_files,
-                           is_content_changed, need_update);
-  }
-  if (old_file_upload_id.is_valid()) {
-    send_closure_later(G()->file_manager(), &FileManager::cancel_upload, old_file_upload_id);
-
-    update_message_content_file_id_remote(new_content.get(), old_file_upload_id.get_file_id());
-  }
-}
-
-void QuickReplyManager::on_failed_send_quick_reply_messages(QuickReplyShortcutId shortcut_id, vector<int64> random_ids,
-                                                            Status error) {
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    // the shortcut was deleted
-    return;
-  }
-
-  for (auto &random_id : random_ids) {
-    for (auto it = s->messages_.begin(); it != s->messages_.end(); ++it) {
-      if ((*it)->random_id == random_id && (*it)->message_id.is_yet_unsent()) {
-        auto old_message_id = (*it)->message_id;
-        auto new_message_id = old_message_id.get_next_message_id(MessageType::Local);
-        if (get_message_it(s, new_message_id) != s->messages_.end() ||
-            deleted_message_full_ids_.count({shortcut_id, new_message_id})) {
-          new_message_id = get_next_local_message_id(s);
-        } else if (new_message_id > s->last_assigned_message_id_) {
-          s->last_assigned_message_id_ = new_message_id;
-        }
-        CHECK(new_message_id.is_valid());
-        unregister_message_content(it->get(), "on_failed_send_quick_reply_messages");
-        (*it)->message_id = new_message_id;
-        (*it)->is_failed_to_send = true;
-        (*it)->send_error_code = error.code();
-        (*it)->send_error_message = error.message().str();
-        (*it)->try_resend_at = 0.0;
-        auto retry_after = Global::get_retry_after((*it)->send_error_code, (*it)->send_error_message);
-        if (retry_after > 0) {
-          (*it)->try_resend_at = Time::now() + retry_after;
-        }
-        CHECK((*it)->edited_content == nullptr);
-        update_failed_to_send_message_content(td_, (*it)->content);
-        (*it)->file_upload_id = {};
-        (*it)->thumbnail_file_upload_id = {};
-        register_message_content(it->get(), "on_failed_send_quick_reply_messages");
-
-        break;
-      }
-    }
-  }
-
-  sort_quick_reply_messages(s->messages_);
-  send_update_quick_reply_shortcut(s, "on_failed_send_quick_reply_messages");
-  send_update_quick_reply_shortcut_messages(s, "on_failed_send_quick_reply_messages");
-  save_quick_reply_shortcuts();
-}
-
-Result<td_api::object_ptr<td_api::quickReplyMessage>> QuickReplyManager::send_message(
-    const string &shortcut_name, MessageId reply_to_message_id,
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  TRY_RESULT(message_content, process_input_message_content(std::move(input_message_content)));
-  TRY_RESULT(s, create_new_local_shortcut(shortcut_name, 1));
-  bool is_new = s->messages_.empty();
-  reply_to_message_id = get_input_reply_to_message_id(s, reply_to_message_id);
-
-  auto content = dup_message_content(td_, td_->dialog_manager_->get_my_dialog_id(), message_content.content.get(),
-                                     MessageContentDupType::Send, MessageCopyOptions());
-  auto *m = add_local_message(s, reply_to_message_id, std::move(content), message_content.invert_media,
-                              message_content.via_bot_user_id, false, message_content.disable_web_page_preview,
-                              std::move(message_content.emoji));
-
-  send_update_quick_reply_shortcut(s, "send_message");
-  send_update_quick_reply_shortcut_messages(s, "send_message");
-  if (is_new) {
-    send_update_quick_reply_shortcuts();
-  }
-  save_quick_reply_shortcuts();
-
-  do_send_message(m);
-
-  return get_quick_reply_message_object(m, "send_message");
-}
-
-Result<td_api::object_ptr<td_api::quickReplyMessage>> QuickReplyManager::send_inline_query_result_message(
-    const string &shortcut_name, MessageId reply_to_message_id, int64 query_id, const string &result_id,
-    bool hide_via_bot) {
-  const InlineMessageContent *message_content =
-      td_->inline_queries_manager_->get_inline_message_content(query_id, result_id);
-  if (message_content == nullptr || query_id == 0) {
-    return Status::Error(400, "Inline query result not found");
-  }
-  TRY_RESULT(s, create_new_local_shortcut(shortcut_name, 1));
-  bool is_new = s->messages_.empty();
-  reply_to_message_id = get_input_reply_to_message_id(s, reply_to_message_id);
-
-  UserId via_bot_user_id;
-  if (!hide_via_bot) {
-    via_bot_user_id = td_->inline_queries_manager_->get_inline_bot_user_id(query_id);
-  }
-  auto content =
-      dup_message_content(td_, td_->dialog_manager_->get_my_dialog_id(), message_content->message_content.get(),
-                          MessageContentDupType::SendViaBot, MessageCopyOptions());
-  auto *m = add_local_message(s, reply_to_message_id, std::move(content), message_content->invert_media,
-                              via_bot_user_id, hide_via_bot, message_content->disable_web_page_preview, string());
-  m->reply_markup = dup_reply_markup(message_content->message_reply_markup);
-  m->inline_query_id = query_id;
-  m->inline_result_id = result_id;
-
-  send_update_quick_reply_shortcut(s, "send_inline_query_result_message");
-  send_update_quick_reply_shortcut_messages(s, "send_inline_query_result_message");
-  if (is_new) {
-    send_update_quick_reply_shortcuts();
-  }
-  save_quick_reply_shortcuts();
-
-  do_send_message(m);
-
-  return get_quick_reply_message_object(m, "send_inline_query_result_message");
-}
-
-Result<td_api::object_ptr<td_api::quickReplyMessages>> QuickReplyManager::send_message_group(
-    const string &shortcut_name, MessageId reply_to_message_id,
-    vector<td_api::object_ptr<td_api::InputMessageContent>> &&input_message_contents) {
-  vector<InputMessageContent> message_contents;
-  for (auto &input_message_content : input_message_contents) {
-    TRY_RESULT(message_content, process_input_message_content(std::move(input_message_content)));
-    message_contents.push_back(std::move(message_content));
-  }
-  TRY_STATUS(check_message_group_message_contents(message_contents));
-
-  TRY_RESULT(s, create_new_local_shortcut(shortcut_name, static_cast<int32>(message_contents.size())));
-  bool is_new = s->messages_.empty();
-  reply_to_message_id = get_input_reply_to_message_id(s, reply_to_message_id);
-
-  int64 media_album_id = 0;
-  if (message_contents.size() > 1) {
-    media_album_id = generate_new_media_album_id();
-  }
-
-  vector<td_api::object_ptr<td_api::quickReplyMessage>> messages;
-  for (auto &message_content : message_contents) {
-    auto content = dup_message_content(td_, td_->dialog_manager_->get_my_dialog_id(), message_content.content.get(),
-                                       MessageContentDupType::Send, MessageCopyOptions());
-    auto *m = add_local_message(s, reply_to_message_id, std::move(content), message_content.invert_media,
-                                message_content.via_bot_user_id, false, message_content.disable_web_page_preview,
-                                std::move(message_content.emoji));
-    m->media_album_id = media_album_id;
-
-    do_send_message(m);
-
-    messages.push_back(get_quick_reply_message_object(m, "send_message_group"));
-  }
-
-  send_update_quick_reply_shortcut(s, "send_message_group");
-  send_update_quick_reply_shortcut_messages(s, "send_message_group");
-  if (is_new) {
-    send_update_quick_reply_shortcuts();
-  }
-  save_quick_reply_shortcuts();
-
-  return td_api::make_object<td_api::quickReplyMessages>(std::move(messages));
-}
-
-void QuickReplyManager::on_cover_upload(QuickReplyMessageFullId message_full_id, int64 edit_generation,
-                                        vector<int> bad_parts, Result<Unit> result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  const QuickReplyMessage *m = get_message(message_full_id);
-  if (m == nullptr) {
-    // message has already been deleted by the user, do not need to send or edit it
-    LOG(INFO) << "Quick reply message with a cover has already been deleted";
-    return;
-  }
-
-  if (result.is_error()) {
-    bool is_edit = m->message_id.is_any_server();
-    if (is_edit) {
-      if (edit_generation == m->edit_generation) {
-        fail_edit_quick_reply_message(m->shortcut_id, m->message_id, edit_generation, FileUploadId(), FileUploadId(),
-                                      FileId(), string(), string(), false, false, result.move_as_error());
-      }
-    } else {
-      on_failed_send_quick_reply_messages(m->shortcut_id, {m->random_id}, result.move_as_error());
-    }
-  } else {
-    do_send_message(m, std::move(bad_parts));
-  }
-}
-
-void QuickReplyManager::do_send_message(const QuickReplyMessage *m, vector<int> bad_parts) {
-  CHECK(m != nullptr);
-  bool is_edit = m->message_id.is_server();
-  auto message_full_id = QuickReplyMessageFullId(m->shortcut_id, m->message_id);
-  LOG(INFO) << "Do " << (is_edit ? "edit" : "send") << ' ' << message_full_id;
-
-  if (m->media_album_id != 0 && bad_parts.empty() && !is_edit) {
-    auto &request = pending_message_group_sends_[m->media_album_id];
-    if (!td::contains(request.message_ids, m->message_id)) {
-      request.message_ids.push_back(m->message_id);
-      request.is_finished.push_back(false);
-      request.results.push_back(Status::OK());
-    }
-  }
-
-  auto content = is_edit ? m->edited_content.get() : m->content.get();
-  CHECK(content != nullptr);
-  auto content_type = content->get_type();
-  if (content_type == MessageContentType::Unsupported) {
-    if (is_edit) {
-      return fail_edit_quick_reply_message(m->shortcut_id, m->message_id, m->edit_generation, FileUploadId(),
-                                           FileUploadId(), FileId(), string(), string(), false, false,
-                                           Status::Error(400, "Failed to upload file"));
-    }
-    return on_failed_send_quick_reply_messages(m->shortcut_id, {m->random_id},
-                                               Status::Error(400, "Failed to upload file"));
-  }
-
-  if (!is_edit && m->inline_query_id != 0) {
-    td_->create_handler<SendQuickReplyInlineMessageQuery>()->send(m);
-    return;
-  }
-
-  if (content_type == MessageContentType::Text) {
-    if (is_edit) {
-      td_->create_handler<EditQuickReplyMessageQuery>()->send(m, nullptr);
-      return;
-    }
-    auto input_media = get_message_content_input_media_web_page(td_, content);
-    if (input_media == nullptr) {
-      td_->create_handler<SendQuickReplyMessageQuery>()->send(m);
-    } else {
-      td_->create_handler<SendQuickReplyMediaQuery>()->send(m, std::move(input_media));
-    }
-    return;
-  }
-
-  auto covers = get_message_content_need_to_upload_covers(td_, content);
-  if (!covers.empty()) {
-    return td_->message_query_manager_->upload_message_covers(
-        BusinessConnectionId(), td_->dialog_manager_->get_my_dialog_id(), std::move(covers),
-        PromiseCreator::lambda([actor_id = actor_id(this), message_full_id, edit_generation = m->edit_generation,
-                                bad_parts = std::move(bad_parts)](Result<Unit> result) mutable {
-          send_closure(actor_id, &QuickReplyManager::on_cover_upload, message_full_id, edit_generation,
-                       std::move(bad_parts), std::move(result));
-        }));
-  }
-
-  if (bad_parts.empty()) {
-    auto file_id = get_message_content_any_file_id(content);
-    if (file_id.is_valid()) {
-      auto file_upload_id = FileUploadId{file_id, FileManager::get_internal_upload_id()};
-      FileUploadId thumbnail_file_upload_id;
-      auto thumbnail_file_id = get_message_content_thumbnail_file_id(content, td_);
-      if (thumbnail_file_id.is_valid()) {
-        FileView file_view = td_->file_manager_->get_file_view(file_id);
-        if (get_file_type_class(file_view.get_type()) != FileTypeClass::Photo) {
-          thumbnail_file_upload_id = FileUploadId{thumbnail_file_id, FileManager::get_internal_upload_id()};
-        }
-      }
-      if (is_edit) {
-        m->edited_file_upload_id = file_upload_id;
-        m->edited_thumbnail_file_upload_id = thumbnail_file_upload_id;
-      } else {
-        m->file_upload_id = file_upload_id;
-        m->thumbnail_file_upload_id = thumbnail_file_upload_id;
-      }
-    }
-  }
-  auto file_upload_id = is_edit ? m->edited_file_upload_id : m->file_upload_id;
-  LOG(DEBUG) << "Need to send " << file_upload_id;
-  auto input_media = get_message_content_input_media(content, td_, {}, m->send_emoji, false);
-  if (input_media == nullptr) {
-    if (content_type == MessageContentType::Game || content_type == MessageContentType::Story) {
-      return;
-    }
-    CHECK(file_upload_id.is_valid());
-
-    LOG(INFO) << "Ask to upload " << file_upload_id << " with bad parts " << bad_parts;
-    bool is_inserted =
-        being_uploaded_files_.emplace(file_upload_id, std::make_pair(message_full_id, m->edit_generation)).second;
-    CHECK(is_inserted);
-    td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_media_callback_, 1,
-                                      m->message_id.get());
-  } else {
-    on_message_media_uploaded(m, std::move(input_media));
-  }
-}
-
-void QuickReplyManager::on_send_message_file_error(QuickReplyShortcutId shortcut_id, int64 random_id,
-                                                   vector<int> &&bad_parts) {
-  auto *s = get_shortcut(shortcut_id);
-  if (s != nullptr) {
-    for (auto &message : s->messages_) {
-      if (message->random_id == random_id && message->message_id.is_yet_unsent()) {
-        do_send_message(message.get(), std::move(bad_parts));
-        return;
-      }
-    }
-  }
-}
-
-void QuickReplyManager::on_upload_media(FileUploadId file_upload_id,
-                                        telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Quick reply " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto message_full_id = it->second.first;
-  auto edit_generation = it->second.second;
-  being_uploaded_files_.erase(it);
-
-  const auto *m = get_message(message_full_id);
-  if (m == nullptr || (m->message_id.is_server() && m->edit_generation != edit_generation)) {
-    send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-    return;
-  }
-
-  auto thumbnail_file_upload_id =
-      m->message_id.is_server() ? m->edited_thumbnail_file_upload_id : m->thumbnail_file_upload_id;
-  if (input_file != nullptr && thumbnail_file_upload_id.is_valid()) {
-    // TODO: download thumbnail if needed (like in secret chats)
-    LOG(INFO) << "Ask to upload thumbnail " << thumbnail_file_upload_id;
-    bool is_inserted =
-        being_uploaded_thumbnails_
-            .emplace(thumbnail_file_upload_id,
-                     UploadedThumbnailInfo{message_full_id, file_upload_id, std::move(input_file), edit_generation})
-            .second;
-    CHECK(is_inserted);
-    td_->file_manager_->upload(thumbnail_file_upload_id, upload_thumbnail_callback_, 32, m->message_id.get());
-  } else {
-    do_send_media(m, std::move(input_file), nullptr);
-  }
-}
-
-void QuickReplyManager::do_send_media(const QuickReplyMessage *m,
-                                      telegram_api::object_ptr<telegram_api::InputFile> input_file,
-                                      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail) {
-  CHECK(m != nullptr);
-
-  bool have_input_file = input_file != nullptr;
-  bool have_input_thumbnail = input_thumbnail != nullptr;
-  bool is_edit = m->message_id.is_server();
-  auto content = is_edit ? m->edited_content.get() : m->content.get();
-  auto file_upload_id = is_edit ? m->edited_file_upload_id : m->file_upload_id;
-  auto thumbnail_file_upload_id = is_edit ? m->edited_thumbnail_file_upload_id : m->thumbnail_file_upload_id;
-  CHECK(content != nullptr);
-
-  LOG(INFO) << "Do send media " << QuickReplyMessageFullId{m->shortcut_id, m->message_id} << ": " << file_upload_id
-            << " with thumbnail " << thumbnail_file_upload_id << ", have_input_file = " << have_input_file
-            << ", have_input_thumbnail = " << have_input_thumbnail;
-
-  auto input_media =
-      get_message_content_input_media(content, -1, td_, std::move(input_file), std::move(input_thumbnail),
-                                      file_upload_id, thumbnail_file_upload_id, {}, m->send_emoji, true);
-  CHECK(input_media != nullptr);
-
-  on_message_media_uploaded(m, std::move(input_media));
-}
-
-void QuickReplyManager::on_upload_media_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(WARNING) << "Quick reply " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-
-  auto message_full_id = it->second.first;
-
-  being_uploaded_files_.erase(it);
-
-  const auto *m = get_message(message_full_id);
-  if (m == nullptr) {
-    return;
-  }
-
-  on_failed_send_quick_reply_messages(message_full_id.get_quick_reply_shortcut_id(), {m->random_id}, std::move(status));
-}
-
-void QuickReplyManager::on_upload_thumbnail(FileUploadId thumbnail_file_upload_id,
-                                            telegram_api::object_ptr<telegram_api::InputFile> thumbnail_input_file) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(INFO) << "Thumbnail " << thumbnail_file_upload_id << " has been uploaded as " << to_string(thumbnail_input_file);
-
-  auto it = being_uploaded_thumbnails_.find(thumbnail_file_upload_id);
-  CHECK(it != being_uploaded_thumbnails_.end());
-  auto message_full_id = it->second.quick_reply_message_full_id;
-  auto file_upload_id = it->second.file_upload_id;
-  auto input_file = std::move(it->second.input_file);
-  auto edit_generation = it->second.edit_generation;
-  being_uploaded_thumbnails_.erase(it);
-
-  auto *m = get_message_editable(message_full_id);
-  if (m == nullptr || (m->message_id.is_server() && m->edit_generation != edit_generation)) {
-    send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-    send_closure_later(G()->file_manager(), &FileManager::cancel_upload, thumbnail_file_upload_id);
-    return;
-  }
-
-  if (thumbnail_input_file == nullptr) {
-    if (m->message_id.is_server()) {
-      delete_message_content_thumbnail(m->edited_content.get(), td_);
-      m->edited_thumbnail_file_upload_id = {};
-    } else {
-      delete_message_content_thumbnail(m->content.get(), td_);
-      m->thumbnail_file_upload_id = {};
-    }
-  }
-
-  do_send_media(m, std::move(input_file), std::move(thumbnail_input_file));
-}
-
-void QuickReplyManager::on_message_media_uploaded(const QuickReplyMessage *m,
-                                                  telegram_api::object_ptr<telegram_api::InputMedia> &&input_media) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(m != nullptr);
-  CHECK(input_media != nullptr);
-  auto message_id = m->message_id;
-  if (message_id.is_any_server()) {
-    CHECK(m->edited_content != nullptr);
-    CHECK(m->edited_content->get_type() != MessageContentType::Text);
-    td_->create_handler<EditQuickReplyMessageQuery>()->send(m, std::move(input_media));
-    return;
-  }
-
-  if (m->media_album_id != 0) {
-    if (!is_uploaded_input_media(input_media)) {
-      td_->create_handler<UploadQuickReplyMediaQuery>()->send(m, std::move(input_media));
-    } else {
-      send_closure_later(actor_id(this), &QuickReplyManager::on_upload_message_media_finished, m->media_album_id,
-                         m->shortcut_id, m->message_id, Status::OK());
-    }
-    return;
-  }
-
-  td_->create_handler<SendQuickReplyMediaQuery>()->send(m, std::move(input_media));
-}
-
-void QuickReplyManager::on_upload_message_media_success(QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                                        FileUploadId file_upload_id,
-                                                        telegram_api::object_ptr<telegram_api::MessageMedia> &&media) {
-  const auto *m = get_message({shortcut_id, message_id});
-  if (m == nullptr) {
-    send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-    return;
-  }
-
-  CHECK(message_id.is_yet_unsent());
-  CHECK(m->file_upload_id == file_upload_id);
-
-  auto content =
-      get_uploaded_message_content(td_, m->content.get(), -1, std::move(media),
-                                   td_->dialog_manager_->get_my_dialog_id(), 0, "on_upload_message_media_success");
-  update_sent_message_content_from_temporary_message(m->content, file_upload_id, content, true);
-
-  save_quick_reply_shortcuts();
-
-  auto input_media = get_message_content_input_media(content.get(), td_, {}, m->send_emoji, true);
-  Status result;
-  if (input_media == nullptr) {
-    result = Status::Error(400, "Failed to upload file");
-  }
-
-  send_closure_later(actor_id(this), &QuickReplyManager::on_upload_message_media_finished, m->media_album_id,
-                     shortcut_id, message_id, std::move(result));
-}
-
-void QuickReplyManager::on_upload_message_media_fail(QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                                     Status error) {
-  const auto *m = get_message({shortcut_id, message_id});
-  if (m == nullptr) {
-    return;
-  }
-
-  send_closure_later(actor_id(this), &QuickReplyManager::on_upload_message_media_finished, m->media_album_id,
-                     shortcut_id, m->message_id, std::move(error));
-}
-
-void QuickReplyManager::on_upload_message_media_finished(int64 media_album_id, QuickReplyShortcutId shortcut_id,
-                                                         MessageId message_id, Status result) {
-  CHECK(media_album_id < 0);
-  auto it = pending_message_group_sends_.find(media_album_id);
-  if (it == pending_message_group_sends_.end()) {
-    CHECK(result.is_ok());
-    // the message is being sent but was deleted
-    return;
-  }
-
-  auto &request = it->second;
-  auto message_it = std::find(request.message_ids.begin(), request.message_ids.end(), message_id);
-  CHECK(message_it != request.message_ids.end());
-  auto pos = static_cast<size_t>(message_it - request.message_ids.begin());
-
-  if (request.is_finished[pos]) {
-    LOG(INFO) << "Upload media of " << message_id << " in " << shortcut_id << " from group " << media_album_id
-              << " at pos " << pos << " has already been finished";
-    return;
-  }
-  LOG(INFO) << "Finish to upload media of " << message_id << " in " << shortcut_id << " from group " << media_album_id
-            << " at pos " << pos << " with result " << result
-            << " and previous finished_count = " << request.finished_count;
-
-  request.results[pos] = std::move(result);
-  request.is_finished[pos] = true;
-  request.finished_count++;
-
-  if (request.finished_count == request.message_ids.size()) {
-    do_send_message_group(shortcut_id, media_album_id);
-  }
-}
-
-void QuickReplyManager::do_send_message_group(QuickReplyShortcutId shortcut_id, int64 media_album_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(media_album_id < 0);
-  auto it = pending_message_group_sends_.find(media_album_id);
-  CHECK(it != pending_message_group_sends_.end());
-
-  auto &request = it->second;
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return;
-  }
-
-  vector<FileId> file_ids;
-  vector<FileId> cover_file_ids;
-  vector<int64> random_ids;
-  MessageId reply_to_message_id;
-  bool invert_media = false;
-  vector<telegram_api::object_ptr<telegram_api::inputSingleMedia>> input_single_media;
-  Status error = Status::OK();
-  for (size_t i = 0; i < request.message_ids.size(); i++) {
-    CHECK(request.is_finished[i]);
-    const auto *m = get_message(s, request.message_ids[i]);
-    if (m == nullptr) {
-      // skip deleted messages
-      continue;
-    }
-    if (request.results[i].is_error()) {
-      if (error.is_ok()) {
-        error = std::move(request.results[i]);
-      }
-      continue;
-    }
-
-    reply_to_message_id = m->reply_to_message_id;
-    invert_media = m->invert_media;
-    file_ids.push_back(m->file_upload_id.get_file_id());
-    cover_file_ids.push_back(get_message_content_cover_any_file_id(m->content.get()));
-    random_ids.push_back(m->random_id);
-
-    LOG(INFO) << "Have file " << file_ids.back() << " in " << m->message_id << " with result " << request.results[i]
-              << " and is_finished = " << static_cast<bool>(request.is_finished[i]);
-
-    const FormattedText *caption = get_message_content_caption(m->content.get());
-    auto input_media = get_message_content_input_media(m->content.get(), td_, {}, m->send_emoji, true);
-    CHECK(input_media != nullptr);
-    auto entities = get_input_message_entities(td_->user_manager_.get(), caption, "do_send_message_group");
-    int32 input_single_media_flags = 0;
-    if (!entities.empty()) {
-      input_single_media_flags |= telegram_api::inputSingleMedia::ENTITIES_MASK;
-    }
-    input_single_media.push_back(telegram_api::make_object<telegram_api::inputSingleMedia>(
-        input_single_media_flags, std::move(input_media), random_ids.back(), caption == nullptr ? "" : caption->text,
-        std::move(entities)));
-  }
-  pending_message_group_sends_.erase(it);
-  if (error.is_error()) {
-    on_failed_send_quick_reply_messages(shortcut_id, std::move(random_ids), std::move(error));
-    return;
-  }
-
-  LOG(INFO) << "Begin to send media group " << media_album_id << " to " << shortcut_id;
-
-  if (input_single_media.empty()) {
-    LOG(INFO) << "Media group " << media_album_id << " from " << shortcut_id << " is empty";
-  }
-  td_->create_handler<SendQuickReplyMultiMediaQuery>()->send(shortcut_id, reply_to_message_id, invert_media,
-                                                             std::move(random_ids), std::move(file_ids),
-                                                             std::move(cover_file_ids), std::move(input_single_media));
-}
-
-void QuickReplyManager::on_send_media_group_file_reference_error(QuickReplyShortcutId shortcut_id,
-                                                                 vector<int64> random_ids) {
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return;
-  }
-
-  int64 media_album_id = 0;
-  vector<MessageId> message_ids;
-  for (auto &random_id : random_ids) {
-    for (auto it = s->messages_.begin(); it != s->messages_.end(); ++it) {
-      const auto *m = it->get();
-      if (m->random_id == random_id && m->message_id.is_yet_unsent()) {
-        CHECK(m->media_album_id != 0);
-        CHECK(media_album_id == 0 || media_album_id == m->media_album_id);
-        media_album_id = m->media_album_id;
-
-        message_ids.push_back(m->message_id);
-      }
-    }
-  }
-  if (message_ids.empty()) {
-    // all messages were deleted, nothing to do
-    return;
-  }
-
-  auto &request = pending_message_group_sends_[media_album_id];
-  CHECK(request.finished_count == 0);
-  CHECK(request.is_finished.empty());
-  CHECK(request.results.empty());
-  request.message_ids = std::move(message_ids);
-  request.is_finished.resize(request.message_ids.size());
-  for (size_t i = 0; i < request.message_ids.size(); i++) {
-    request.results.push_back(Status::OK());
-  }
-
-  for (auto message_id : request.message_ids) {
-    do_send_message(get_message(s, message_id), {-1});
-  }
-}
-
-int64 QuickReplyManager::generate_new_media_album_id() const {
-  int64 media_album_id = 0;
-  do {
-    media_album_id = Random::secure_int64();
-  } while (media_album_id >= 0 || pending_message_group_sends_.count(media_album_id) > 0);
-  return media_album_id;
-}
-
-Result<td_api::object_ptr<td_api::quickReplyMessages>> QuickReplyManager::resend_messages(
-    const string &shortcut_name, vector<MessageId> message_ids) {
-  if (message_ids.empty()) {
-    return Status::Error(400, "There are no messages to resend");
-  }
-
-  load_quick_reply_shortcuts();
-
-  auto *s = get_shortcut(shortcut_name);
-  if (s == nullptr) {
-    return Status::Error(400, "Quick reply shortcut not found");
-  }
-
-  MessageId last_message_id;
-  for (auto &message_id : message_ids) {
-    const auto *m = get_message(s, message_id);
-    if (m == nullptr) {
-      return Status::Error(400, "Message not found");
-    }
-    if (!m->is_failed_to_send) {
-      return Status::Error(400, "Message is not failed to send");
-    }
-    if (!can_resend_quick_reply_message(m)) {
-      return Status::Error(400, "Message can't be re-sent");
-    }
-    if (m->try_resend_at > Time::now()) {
-      return Status::Error(400, "Message can't be re-sent yet");
-    }
-    if (last_message_id != MessageId() && m->message_id <= last_message_id) {
-      return Status::Error(400, "Message identifiers must be in a strictly increasing order");
-    }
-    last_message_id = m->message_id;
-  }
-
-  vector<unique_ptr<MessageContent>> new_contents(message_ids.size());
-  std::unordered_map<int64, std::pair<int64, int32>, Hash<int64>> new_media_album_ids;
-  for (size_t i = 0; i < message_ids.size(); i++) {
-    MessageId message_id = message_ids[i];
-    const auto *m = get_message(s, message_id);
-    CHECK(m != nullptr);
-    CHECK(m->edited_content == nullptr);
-
-    unique_ptr<MessageContent> content =
-        dup_message_content(td_, td_->dialog_manager_->get_my_dialog_id(), m->content.get(),
-                            m->inline_query_id != 0 ? MessageContentDupType::SendViaBot : MessageContentDupType::Send,
-                            MessageCopyOptions());
-    if (content == nullptr) {
-      LOG(INFO) << "Can't resend " << m->message_id;
-      continue;
-    }
-
-    new_contents[i] = std::move(content);
-
-    if (m->media_album_id != 0) {
-      auto &new_media_album_id = new_media_album_ids[m->media_album_id];
-      new_media_album_id.second++;
-      if (new_media_album_id.second == 2) {  // have at least 2 messages in the new album
-        CHECK(new_media_album_id.first == 0);
-        new_media_album_id.first = generate_new_media_album_id();
-      }
-      if (new_media_album_id.second == MAX_GROUPED_MESSAGES + 1) {
-        CHECK(new_media_album_id.first != 0);
-        new_media_album_id.first = 0;  // just in case
-      }
-    }
-  }
-
-  bool is_changed = false;
-  auto result = td_api::make_object<td_api::quickReplyMessages>();
-  for (size_t i = 0; i < message_ids.size(); i++) {
-    if (new_contents[i] == nullptr) {
-      result->messages_.push_back(nullptr);
-      continue;
-    }
-
-    auto *m = get_message_editable(s, message_ids[i]);
-    CHECK(m != nullptr);
-    unregister_message_content(m, "resend_message");
-    m->message_id = get_next_yet_unsent_message_id(s);
-    m->media_album_id = new_media_album_ids[m->media_album_id].first;
-    m->is_failed_to_send = false;
-    m->send_error_code = 0;
-    m->send_error_message = string();
-    m->try_resend_at = 0.0;
-    register_message_content(m, "resend_message");
-
-    do_send_message(m);
-
-    result->messages_.push_back(get_quick_reply_message_object(m, "resend_message"));
-    is_changed = true;
-  }
-
-  if (is_changed) {
-    sort_quick_reply_messages(s->messages_);
-    send_update_quick_reply_shortcut(s, "resend_message");
-    send_update_quick_reply_shortcut_messages(s, "resend_message");
-    save_quick_reply_shortcuts();
-  }
-
-  return std::move(result);
-}
-
-void QuickReplyManager::edit_quick_reply_message(
-    QuickReplyShortcutId shortcut_id, MessageId message_id,
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content, Promise<Unit> &&promise) {
-  load_quick_reply_shortcuts();
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return promise.set_error(Status::Error(400, "Shortcut not found"));
-  }
-  auto *m = get_message_editable(s, message_id);
-  if (m == nullptr) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!can_edit_quick_reply_message(m)) {
-    return promise.set_error(Status::Error(400, "Message can't be edited"));
-  }
-
-  TRY_RESULT_PROMISE(promise, message_content, process_input_message_content(std::move(input_message_content)));
-  auto new_message_content_type = message_content.content->get_type();
-  auto old_message_content_type = m->content->get_type();
-  switch (old_message_content_type) {
-    case MessageContentType::Text:
-    case MessageContentType::Animation:
-    case MessageContentType::Audio:
-    case MessageContentType::Document:
-    case MessageContentType::Photo:
-    case MessageContentType::Video:
-      if (new_message_content_type != MessageContentType::Animation &&
-          new_message_content_type != MessageContentType::Audio &&
-          new_message_content_type != MessageContentType::Document &&
-          new_message_content_type != MessageContentType::Photo &&
-          new_message_content_type != MessageContentType::Video &&
-          (new_message_content_type != MessageContentType::Text ||
-           old_message_content_type != MessageContentType::Text)) {
-        return promise.set_error(Status::Error(400, "Message can't be edited to the specified message type"));
-      }
-      if (m->media_album_id != 0) {
-        if (old_message_content_type != new_message_content_type) {
-          if (!is_allowed_media_group_content(new_message_content_type)) {
-            return promise.set_error(Status::Error(400, "Message content type can't be used in an album"));
-          }
-          if (is_homogenous_media_group_content(old_message_content_type) ||
-              is_homogenous_media_group_content(new_message_content_type)) {
-            return promise.set_error(Status::Error(400, "Can't change media type in the album"));
-          }
-        }
-      }
-      break;
-    case MessageContentType::VoiceNote:
-      if (new_message_content_type != MessageContentType::VoiceNote ||
-          get_message_content_any_file_id(m->content.get()) !=
-              get_message_content_any_file_id(message_content.content.get())) {
-        return promise.set_error(Status::Error(400, "Only caption can be edited in voice note messages"));
-      }
-      break;
-    default:
-      UNREACHABLE();
-  }
-
-  auto old_file_ids = get_message_file_ids(m);
-  m->edited_content = dup_message_content(td_, td_->dialog_manager_->get_my_dialog_id(), message_content.content.get(),
-                                          MessageContentDupType::Send, MessageCopyOptions());
-  CHECK(m->edited_content != nullptr);
-  m->edited_invert_media = message_content.invert_media;
-  m->edited_disable_web_page_preview = message_content.disable_web_page_preview;
-  m->edit_generation = ++current_message_edit_generation_;
-
-  change_message_files(m, old_file_ids);
-
-  if (s->messages_[0]->message_id == message_id) {
-    send_update_quick_reply_shortcut(s, "edit_quick_reply_message 1");
-  }
-  send_update_quick_reply_shortcut_messages(s, "edit_quick_reply_message 2");
-  save_quick_reply_shortcuts();
-
-  do_send_message(m);
-
-  promise.set_value(Unit());
-}
-
-void QuickReplyManager::on_edit_quick_reply_message(QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                                    int64 edit_generation, FileUploadId file_upload_id,
-                                                    bool was_uploaded,
-                                                    telegram_api::object_ptr<telegram_api::Updates> updates_ptr) {
-  auto *s = get_shortcut(shortcut_id);
-  auto *m = get_message_editable(s, message_id);
-  if (m == nullptr) {
-    if (was_uploaded) {
-      send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-    }
-    return;
-  }
-  if (m->edit_generation != edit_generation) {
-    LOG(INFO) << "Ignore successful edit of " << QuickReplyMessageFullId(m->shortcut_id, m->message_id)
-              << " with generation " << edit_generation << " instead of " << m->edit_generation;
-    if (was_uploaded) {
-      send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-    }
-    return;
-  }
-  CHECK(file_upload_id == m->edited_file_upload_id);
-  LOG(INFO) << "Receive result for editing of " << QuickReplyMessageFullId(m->shortcut_id, m->message_id) << ": "
-            << to_string(updates_ptr);
-
-  bool was_updated = updates_ptr == nullptr;
-  if (updates_ptr == nullptr || updates_ptr->get_id() != telegram_api::updates::ID) {
-    if (was_uploaded) {
-      send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-    }
-    reload_quick_reply_message(shortcut_id, message_id, Promise<Unit>());
-  } else {
-    auto updates = telegram_api::move_object_as<telegram_api::updates>(updates_ptr);
-    td_->user_manager_->on_get_users(std::move(updates->users_), "on_edit_quick_reply_message");
-    td_->chat_manager_->on_get_chats(std::move(updates->chats_), "on_edit_quick_reply_message");
-
-    if (updates->updates_.size() != 1 || updates->updates_[0]->get_id() != telegram_api::updateQuickReplyMessage::ID) {
-      LOG(ERROR) << "Receive " << to_string(updates);
-      if (was_uploaded) {
-        send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-      }
-    } else {
-      auto update_message = telegram_api::move_object_as<telegram_api::updateQuickReplyMessage>(updates->updates_[0]);
-      auto message = create_message(std::move(update_message->message_), "on_edit_quick_reply_message");
-      if (message == nullptr || message->shortcut_id != shortcut_id || message->message_id != message_id) {
-        LOG(ERROR) << "Receive unexpected message";
-        if (was_uploaded) {
-          send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-        }
-      } else {
-        update_sent_message_content_from_temporary_message(m, message.get(), true);
-        auto old_message_it = get_message_it(s, message_id);
-        CHECK(old_message_it != s->messages_.end());
-        update_quick_reply_message(*old_message_it, std::move(message));
-        m = old_message_it->get();
-        was_updated = true;
-      }
-    }
-  }
-
-  auto old_file_ids = get_message_file_ids(m);
-  CHECK(m->edited_content != nullptr);
-  if (!was_updated) {
-    unregister_message_content(m, "on_edit_quick_reply_message");
-    m->content = std::move(m->edited_content);
-    m->invert_media = m->edited_invert_media;
-    m->disable_web_page_preview = m->edited_disable_web_page_preview;
-    register_message_content(m, "on_edit_quick_reply_message");
-  }
-
-  m->edit_generation = 0;
-  m->edited_content = nullptr;
-  m->edited_file_upload_id = {};
-  m->edited_thumbnail_file_upload_id = {};
-  m->edited_invert_media = false;
-  m->edited_disable_web_page_preview = false;
-  change_message_files(m, old_file_ids);
-
-  if (s->messages_[0]->message_id == m->message_id) {
-    send_update_quick_reply_shortcut(s, "on_edit_quick_reply_message 1");
-  }
-  send_update_quick_reply_shortcut_messages(s, "on_edit_quick_reply_message 2");
-  save_quick_reply_shortcuts();
-}
-
-void QuickReplyManager::fail_edit_quick_reply_message(QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                                      int64 edit_generation, FileUploadId file_upload_id,
-                                                      FileUploadId thumbnail_file_upload_id, FileId cover_file_id,
-                                                      string file_reference, string cover_file_reference,
-                                                      bool was_uploaded, bool was_thumbnail_uploaded, Status status) {
-  auto *m = get_message_editable({shortcut_id, message_id});
-  if (m == nullptr || m->edit_generation != edit_generation) {
-    if (was_uploaded) {
-      send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-    }
-    if (was_thumbnail_uploaded) {
-      send_closure_later(G()->file_manager(), &FileManager::cancel_upload, thumbnail_file_upload_id);
-    }
-    return;
-  }
-  if (FileReferenceManager::is_file_reference_error(status)) {
-    auto source = FileReferenceManager::get_file_reference_error_source(status);
-    if (source.is_cover_) {
-      if (cover_file_id.is_valid()) {
-        VLOG(file_references) << "Receive " << status << " for cover " << cover_file_id;
-        td_->file_manager_->delete_file_reference(cover_file_id, cover_file_reference);
-        do_send_message(m, {-1});
-        return;
-      } else {
-        LOG(ERROR) << "Receive file reference error, but cover_file_id = " << cover_file_id;
-      }
-    } else {
-      if (file_upload_id.is_valid() && !was_uploaded) {
-        VLOG(file_references) << "Receive " << status << " for " << file_upload_id;
-        td_->file_manager_->delete_file_reference(file_upload_id.get_file_id(), file_reference);
-        do_send_message(m, {-1});
-        return;
-      } else {
-        LOG(ERROR) << "Receive file reference error, but file_id = " << file_upload_id
-                   << ", was_uploaded = " << was_uploaded;
-      }
-    }
-  }
-  if (was_uploaded) {
-    if (was_thumbnail_uploaded) {
-      CHECK(thumbnail_file_upload_id.is_valid());
-      // always delete partial remote location for the thumbnail, because it can't be reused anyway
-      td_->file_manager_->delete_partial_remote_location(thumbnail_file_upload_id);
-    }
-
-    CHECK(file_upload_id.is_valid());
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      do_send_message(m, std::move(bad_parts));
-      return;
-    } else {
-      td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id, status);
-    }
-  }
-
-  auto old_file_ids = get_message_file_ids(m);
-  m->edit_generation = 0;
-  m->edited_content = nullptr;
-  m->edited_file_upload_id = {};
-  m->edited_thumbnail_file_upload_id = {};
-  m->edited_invert_media = false;
-  m->edited_disable_web_page_preview = false;
-  change_message_files(m, old_file_ids);
-
-  auto *s = get_shortcut(m->shortcut_id);
-  CHECK(s != nullptr);
-  if (s->messages_[0]->message_id == m->message_id) {
-    send_update_quick_reply_shortcut(s, "fail_edit_quick_reply_message 1");
-  }
-  send_update_quick_reply_shortcut_messages(s, "fail_edit_quick_reply_message 2");
-  save_quick_reply_shortcuts();
-  reload_quick_reply_message(shortcut_id, message_id, Promise<Unit>());
-}
-
-void QuickReplyManager::get_quick_reply_shortcut_messages(QuickReplyShortcutId shortcut_id, Promise<Unit> &&promise) {
-  load_quick_reply_shortcuts();
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return promise.set_error(Status::Error(400, "Shortcut not found"));
-  }
-  if (have_all_shortcut_messages(s)) {
-    return promise.set_value(Unit());
-  }
-
-  CHECK(shortcut_id.is_server());
-  reload_quick_reply_messages(shortcut_id, std::move(promise));
-}
-
-void QuickReplyManager::reload_quick_reply_messages(QuickReplyShortcutId shortcut_id, Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Not supported by bots"));
-  }
-
-  load_quick_reply_shortcuts();
-  CHECK(shortcut_id.is_valid());
-  if (!shortcut_id.is_server()) {
-    return promise.set_value(Unit());
-  }
-  auto &queries = get_shortcut_messages_queries_[shortcut_id];
-  queries.push_back(std::move(promise));
-  if (queries.size() != 1) {
-    return;
-  }
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), shortcut_id](
-                                 Result<telegram_api::object_ptr<telegram_api::messages_Messages>> r_messages) {
-        send_closure(actor_id, &QuickReplyManager::on_reload_quick_reply_messages, shortcut_id, std::move(r_messages));
-      });
-  td_->create_handler<GetQuickReplyMessagesQuery>(std::move(query_promise))
-      ->send(shortcut_id, vector<MessageId>(), get_quick_reply_messages_hash(get_shortcut(shortcut_id)));
-}
-
-void QuickReplyManager::on_reload_quick_reply_messages(
-    QuickReplyShortcutId shortcut_id, Result<telegram_api::object_ptr<telegram_api::messages_Messages>> r_messages) {
-  G()->ignore_result_if_closing(r_messages);
-  auto queries_it = get_shortcut_messages_queries_.find(shortcut_id);
-  CHECK(queries_it != get_shortcut_messages_queries_.end());
-  CHECK(!queries_it->second.empty());
-  auto promises = std::move(queries_it->second);
-  get_shortcut_messages_queries_.erase(queries_it);
-  if (r_messages.is_error()) {
-    return fail_promises(promises, r_messages.move_as_error());
-  }
-  auto messages_ptr = r_messages.move_as_ok();
-  switch (messages_ptr->get_id()) {
-    case telegram_api::messages_messagesSlice::ID:
-    case telegram_api::messages_channelMessages::ID:
-      LOG(ERROR) << "Receive " << to_string(messages_ptr);
-      break;
-    case telegram_api::messages_messagesNotModified::ID:
-      break;
-    case telegram_api::messages_messages::ID: {
-      auto messages = telegram_api::move_object_as<telegram_api::messages_messages>(messages_ptr);
-      td_->user_manager_->on_get_users(std::move(messages->users_), "on_reload_quick_reply_messages");
-      td_->chat_manager_->on_get_chats(std::move(messages->chats_), "on_reload_quick_reply_messages");
-
-      vector<unique_ptr<QuickReplyMessage>> quick_reply_messages;
-      for (auto &server_message : messages->messages_) {
-        auto message = create_message(std::move(server_message), "on_reload_quick_reply_messages");
-        if (message == nullptr) {
-          continue;
-        }
-        if (message->shortcut_id != shortcut_id) {
-          LOG(ERROR) << "Receive message from " << message->shortcut_id << " instead of " << shortcut_id;
-          continue;
-        }
-
-        quick_reply_messages.push_back(std::move(message));
-      }
-      auto it = get_shortcut_it(shortcut_id);
-      if (quick_reply_messages.empty()) {
-        if (it != shortcuts_.shortcuts_.end()) {
-          send_update_quick_reply_shortcut_deleted(it->get());
-          shortcuts_.shortcuts_.erase(it);
-          save_quick_reply_shortcuts();
-          send_update_quick_reply_shortcuts();
-        }
-        break;
-      }
-
-      auto *old_shortcut = it != shortcuts_.shortcuts_.end() ? it->get() : nullptr;
-      auto shortcut = td::make_unique<Shortcut>();
-      shortcut->name_ = old_shortcut->name_;
-      shortcut->shortcut_id_ = shortcut_id;
-      shortcut->server_total_count_ = static_cast<int32>(quick_reply_messages.size());
-      shortcut->messages_ = std::move(quick_reply_messages);
-
-      if (old_shortcut == nullptr) {
-        CHECK(have_all_shortcut_messages(shortcut.get()));
-        send_update_quick_reply_shortcut(shortcut.get(), "on_reload_quick_reply_messages 1");
-        send_update_quick_reply_shortcut_messages(shortcut.get(), "on_reload_quick_reply_messages 2");
-        for (auto &message : shortcut->messages_) {
-          register_new_message(message.get(), "on_reload_quick_reply_messages 5");
-        }
-        shortcuts_.shortcuts_.push_back(std::move(shortcut));
-      } else {
-        bool is_shortcut_changed = false;
-        bool are_messages_changed = false;
-        update_shortcut_from(shortcut.get(), old_shortcut, false, &is_shortcut_changed, &are_messages_changed);
-        CHECK(have_all_shortcut_messages(shortcut.get()));
-        if (is_shortcut_changed) {
-          send_update_quick_reply_shortcut(shortcut.get(), "on_reload_quick_reply_messages 3");
-        }
-        if (are_messages_changed) {
-          send_update_quick_reply_shortcut_messages(shortcut.get(), "on_reload_quick_reply_messages 4");
-        }
-        *it = std::move(shortcut);
-      }
-
-      save_quick_reply_shortcuts();
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return fail_promises(promises, Status::Error(400, "Shortcut not found"));
-  }
-  set_promises(promises);
-}
-
-int64 QuickReplyManager::get_quick_reply_messages_hash(const Shortcut *s) {
-  if (s == nullptr) {
-    return 0;
-  }
-  vector<uint64> numbers;
-  for (const auto &message : s->messages_) {
-    if (message->message_id.is_server()) {
-      numbers.push_back(message->message_id.get_server_message_id().get());
-      numbers.push_back(message->edit_date);
-    }
-  }
-  return get_vector_hash(numbers);
-}
-
-void QuickReplyManager::reload_quick_reply_message(QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                                   Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Not supported by bots"));
-  }
-
-  load_quick_reply_shortcuts();
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return promise.set_error(Status::Error(400, "Shortcut not found"));
-  }
-  if (!message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Message can't be reloaded"));
-  }
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), shortcut_id, message_id, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::messages_Messages>> r_messages) mutable {
-        send_closure(actor_id, &QuickReplyManager::on_reload_quick_reply_message, shortcut_id, message_id,
-                     std::move(r_messages), std::move(promise));
-      });
-  td_->create_handler<GetQuickReplyMessagesQuery>(std::move(query_promise))
-      ->send(shortcut_id, vector<MessageId>{message_id}, 0);
-}
-
-void QuickReplyManager::on_reload_quick_reply_message(
-    QuickReplyShortcutId shortcut_id, MessageId message_id,
-    Result<telegram_api::object_ptr<telegram_api::messages_Messages>> r_messages, Promise<Unit> &&promise) {
-  G()->ignore_result_if_closing(r_messages);
-  if (r_messages.is_error()) {
-    return promise.set_error(r_messages.move_as_error());
-  }
-  auto *s = get_shortcut(shortcut_id);
-  if (s == nullptr) {
-    return promise.set_error(Status::Error(400, "Shortcut not found"));
-  }
-  auto messages_ptr = r_messages.move_as_ok();
-  switch (messages_ptr->get_id()) {
-    case telegram_api::messages_messagesSlice::ID:
-    case telegram_api::messages_channelMessages::ID:
-    case telegram_api::messages_messagesNotModified::ID:
-      LOG(ERROR) << "Receive " << to_string(messages_ptr);
-      return promise.set_error(Status::Error(400, "Receive wrong response"));
-    case telegram_api::messages_messages::ID: {
-      auto messages = telegram_api::move_object_as<telegram_api::messages_messages>(messages_ptr);
-      td_->user_manager_->on_get_users(std::move(messages->users_), "on_reload_quick_reply_message");
-      td_->chat_manager_->on_get_chats(std::move(messages->chats_), "on_reload_quick_reply_message");
-
-      if (messages->messages_.size() > 1u) {
-        LOG(ERROR) << "Receive " << to_string(messages_ptr);
-        break;
-      }
-      unique_ptr<QuickReplyMessage> message;
-      if (messages->messages_.size() == 1u) {
-        message = create_message(std::move(messages->messages_[0]), "on_reload_quick_reply_message");
-      }
-      if (message == nullptr) {
-        delete_quick_reply_messages(s, {message_id}, "on_reload_quick_reply_message");
-        return promise.set_error(Status::Error(400, "Message not found"));
-      }
-      if (message->shortcut_id != shortcut_id) {
-        LOG(ERROR) << "Receive message from " << message->shortcut_id << " instead of " << shortcut_id;
-        return promise.set_error(Status::Error(400, "Message not found"));
-      }
-      on_get_quick_reply_message(s, std::move(message));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  promise.set_value(Unit());
-}
-
-Result<vector<QuickReplyManager::QuickReplyMessageContent>> QuickReplyManager::get_quick_reply_message_contents(
-    DialogId dialog_id, QuickReplyShortcutId shortcut_id) const {
-  const auto *shortcut = get_shortcut(shortcut_id);
-  if (shortcut == nullptr) {
-    return Status::Error(400, "Shortcut not found");
-  }
-  if (!shortcut_id.is_server()) {
-    return Status::Error(400, "Shortcut isn't created yet");
-  }
-  if (!have_all_shortcut_messages(shortcut)) {
-    return Status::Error(400, "Shortcut messages aren't loaded yet");
-  }
-
-  TRY_STATUS(td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write,
-                                                       "get_quick_reply_message_contents"));
-  if (dialog_id.get_type() != DialogType::User || td_->user_manager_->is_user_bot(dialog_id.get_user_id())) {
-    return Status::Error(400, "Can't use quick replies in the chat");
-  }
-
-  vector<QuickReplyMessageContent> result;
-  for (const auto &message : shortcut->messages_) {
-    if (!message->message_id.is_server()) {
-      continue;
-    }
-    auto content = dup_message_content(td_, dialog_id, message->content.get(), MessageContentDupType::ServerCopy,
-                                       MessageCopyOptions(true, false));
-
-    auto can_send_status = can_send_message_content(dialog_id, content.get(), false, true, td_);
-    if (can_send_status.is_error()) {
-      LOG(INFO) << "Can't send " << message->message_id << ": " << can_send_status.message();
-      // if we skip the message, the sending will fail anyway with MESSAGE_IDS_MISMATCH
-      // continue;
-    }
-
-    auto disable_web_page_preview = message->disable_web_page_preview &&
-                                    content->get_type() == MessageContentType::Text &&
-                                    !has_message_content_web_page(content.get());
-    result.push_back({std::move(content), message->message_id, message->reply_to_message_id,
-                      dup_reply_markup(message->reply_markup),
-                      message->hide_via_bot ? UserId() : message->via_bot_user_id, message->media_album_id,
-                      message->invert_media, disable_web_page_preview});
-  }
-
-  return std::move(result);
-}
-
-QuickReplyManager::Shortcut *QuickReplyManager::get_shortcut(QuickReplyShortcutId shortcut_id) {
-  if (!shortcuts_.are_inited_) {
-    return nullptr;
-  }
-  for (auto &shortcut : shortcuts_.shortcuts_) {
-    if (shortcut->shortcut_id_ == shortcut_id) {
-      return shortcut.get();
-    }
-  }
-  if (shortcut_id.is_local()) {
-    auto it = persistent_shortcut_ids_.find(shortcut_id);
-    if (it != persistent_shortcut_ids_.end()) {
-      return get_shortcut(it->second);
-    }
-  }
-  return nullptr;
-}
-
-const QuickReplyManager::Shortcut *QuickReplyManager::get_shortcut(QuickReplyShortcutId shortcut_id) const {
-  if (!shortcuts_.are_inited_) {
-    return nullptr;
-  }
-  for (auto &shortcut : shortcuts_.shortcuts_) {
-    if (shortcut->shortcut_id_ == shortcut_id) {
-      return shortcut.get();
-    }
-  }
-  if (shortcut_id.is_local()) {
-    auto it = persistent_shortcut_ids_.find(shortcut_id);
-    if (it != persistent_shortcut_ids_.end()) {
-      return get_shortcut(it->second);
-    }
-  }
-  return nullptr;
-}
-
-QuickReplyManager::Shortcut *QuickReplyManager::get_shortcut(const string &name) {
-  if (!shortcuts_.are_inited_) {
-    return nullptr;
-  }
-  for (auto &shortcut : shortcuts_.shortcuts_) {
-    if (shortcut->name_ == name) {
-      return shortcut.get();
-    }
-  }
-  return nullptr;
-}
-
-vector<unique_ptr<QuickReplyManager::Shortcut>>::iterator QuickReplyManager::get_shortcut_it(
-    QuickReplyShortcutId shortcut_id) {
-  for (auto it = shortcuts_.shortcuts_.begin(); it != shortcuts_.shortcuts_.end(); ++it) {
-    if (*it != nullptr && (*it)->shortcut_id_ == shortcut_id) {
-      return it;
-    }
-  }
-  if (shortcut_id.is_local()) {
-    auto it = persistent_shortcut_ids_.find(shortcut_id);
-    if (it != persistent_shortcut_ids_.end()) {
-      return get_shortcut_it(it->second);
-    }
-  }
-  return shortcuts_.shortcuts_.end();
-}
-
-vector<unique_ptr<QuickReplyManager::QuickReplyMessage>>::iterator QuickReplyManager::get_message_it(
-    Shortcut *s, MessageId message_id) {
-  CHECK(s != nullptr);
-  for (auto it = s->messages_.begin(); it != s->messages_.end(); ++it) {
-    if ((*it)->message_id == message_id) {
-      return it;
-    }
-  }
-  return s->messages_.end();
-}
-
-const QuickReplyManager::QuickReplyMessage *QuickReplyManager::get_message(
-    QuickReplyMessageFullId message_full_id) const {
-  const auto *s = get_shortcut(message_full_id.get_quick_reply_shortcut_id());
-  return get_message(s, message_full_id.get_message_id());
-}
-
-const QuickReplyManager::QuickReplyMessage *QuickReplyManager::get_message(const Shortcut *s,
-                                                                           MessageId message_id) const {
-  if (s != nullptr) {
-    for (auto it = s->messages_.begin(); it != s->messages_.end(); ++it) {
-      if ((*it)->message_id == message_id) {
-        return it->get();
-      }
-    }
-  }
-  return nullptr;
-}
-
-QuickReplyManager::QuickReplyMessage *QuickReplyManager::get_message_editable(QuickReplyMessageFullId message_full_id) {
-  auto *s = get_shortcut(message_full_id.get_quick_reply_shortcut_id());
-  return get_message_editable(s, message_full_id.get_message_id());
-}
-
-QuickReplyManager::QuickReplyMessage *QuickReplyManager::get_message_editable(Shortcut *s, MessageId message_id) {
-  if (s != nullptr) {
-    for (auto it = s->messages_.begin(); it != s->messages_.end(); ++it) {
-      if ((*it)->message_id == message_id) {
-        return it->get();
-      }
-    }
-  }
-  return nullptr;
-}
-
-Result<QuickReplyManager::Shortcut *> QuickReplyManager::create_new_local_shortcut(const string &name,
-                                                                                   int32 new_message_count) {
-  TRY_STATUS(check_shortcut_name(name));
-
-  load_quick_reply_shortcuts();
-  if (!shortcuts_.are_inited_) {
-    return Status::Error(400, "Quick reply shortcuts must be loaded first");
-  }
-
-  auto *s = get_shortcut(name);
-  auto max_message_count = td_->option_manager_->get_option_integer("quick_reply_shortcut_message_count_max");
-  if (s != nullptr) {
-    if (!have_all_shortcut_messages(s)) {
-      return Status::Error(400, "The quick reply shortcut must be loaded first");
-    }
-    max_message_count -= s->server_total_count_ + s->local_total_count_;
-  } else {
-    auto max_shortcut_count = td_->option_manager_->get_option_integer("quick_reply_shortcut_count_max");
-    if (static_cast<int64>(shortcuts_.shortcuts_.size()) >= max_shortcut_count) {
-      return Status::Error(400, "Quick reply shortcut count exceeded");
-    }
-  }
-  if (new_message_count > max_message_count) {
-    return Status::Error(400, "Quick reply message count exceeded");
-  }
-  if (s != nullptr) {
-    return s;
-  }
-  if (next_local_shortcut_id_ >= std::numeric_limits<int32>::max() - 10) {
-    return Status::Error(400, "Too many local shortcuts created");
-  }
-
-  auto shortcut = td::make_unique<Shortcut>();
-  shortcut->name_ = name;
-  shortcut->shortcut_id_ = QuickReplyShortcutId(next_local_shortcut_id_++);
-  s = shortcut.get();
-
-  shortcuts_.shortcuts_.push_back(std::move(shortcut));
-
-  return s;
-}
-
-MessageId QuickReplyManager::get_input_reply_to_message_id(const Shortcut *s, MessageId reply_to_message_id) {
-  if (s == nullptr || !reply_to_message_id.is_valid() || !reply_to_message_id.is_server()) {
-    return MessageId();
-  }
-  for (const auto &message : s->messages_) {
-    CHECK(message != nullptr);
-    if (message->message_id == reply_to_message_id) {
-      return reply_to_message_id;
-    }
-  }
-  return MessageId();
-}
-
-Result<InputMessageContent> QuickReplyManager::process_input_message_content(
-    td_api::object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  if (input_message_content == nullptr) {
-    return Status::Error(400, "Can't add quick reply without content");
-  }
-  auto message_content_id = input_message_content->get_id();
-  if (message_content_id == td_api::inputMessageForwarded::ID) {
-    return Status::Error(400, "Can't forward messages to quick replies");
-  }
-  if (message_content_id == td_api::inputMessagePoll::ID) {
-    return Status::Error(400, "Can't add poll as a quick reply");
-  }
-  if (message_content_id == td_api::inputMessagePaidMedia::ID) {
-    return Status::Error(400, "Can't add paid media as a quick reply");
-  }
-  if (message_content_id == td_api::inputMessageLocation::ID &&
-      static_cast<const td_api::inputMessageLocation *>(input_message_content.get())->live_period_ != 0) {
-    return Status::Error(400, "Can't add live location as a quick reply");
-  }
-  return get_input_message_content(DialogId(), std::move(input_message_content), td_, true);
-}
-
-MessageId QuickReplyManager::get_next_message_id(Shortcut *s, MessageType type) const {
-  CHECK(s != nullptr);
-  MessageId last_message_id = s->last_assigned_message_id_;
-  if (!s->messages_.empty() && s->messages_.back() != nullptr && s->messages_.back()->message_id > last_message_id) {
-    last_message_id = s->messages_.back()->message_id;
-  }
-  s->last_assigned_message_id_ = last_message_id.get_next_message_id(type);
-  CHECK(s->last_assigned_message_id_.is_valid());
-  return s->last_assigned_message_id_;
-}
-
-MessageId QuickReplyManager::get_next_yet_unsent_message_id(Shortcut *s) const {
-  return get_next_message_id(s, MessageType::YetUnsent);
-}
-
-MessageId QuickReplyManager::get_next_local_message_id(Shortcut *s) const {
-  return get_next_message_id(s, MessageType::Local);
-}
-
-QuickReplyManager::QuickReplyMessage *QuickReplyManager::add_local_message(
-    Shortcut *s, MessageId reply_to_message_id, unique_ptr<MessageContent> &&content, bool invert_media,
-    UserId via_bot_user_id, bool hide_via_bot, bool disable_web_page_preview, string &&send_emoji) {
-  CHECK(s != nullptr);
-  auto message = make_unique<QuickReplyMessage>();
-  auto *m = message.get();
-  m->shortcut_id = s->shortcut_id_;
-  m->message_id = get_next_yet_unsent_message_id(s);
-  m->reply_to_message_id = reply_to_message_id;
-  m->send_emoji = std::move(send_emoji);
-  m->via_bot_user_id = via_bot_user_id;
-  m->hide_via_bot = hide_via_bot;
-  m->invert_media = invert_media;
-  m->disable_web_page_preview = disable_web_page_preview;
-  m->content = std::move(content);
-  do {
-    m->random_id = Random::secure_int64();
-  } while (m->random_id == 0);
-
-  register_new_message(m, "add_local_quick_reply_message");
-
-  s->messages_.push_back(std::move(message));
-  s->local_total_count_++;
-
-  return m;
-}
-
-vector<QuickReplyShortcutId> QuickReplyManager::get_shortcut_ids() const {
-  return transform(shortcuts_.shortcuts_, [](const unique_ptr<Shortcut> &shortcut) { return shortcut->shortcut_id_; });
-}
-
-vector<QuickReplyShortcutId> QuickReplyManager::get_server_shortcut_ids() const {
-  vector<QuickReplyShortcutId> shortcut_ids;
-  for (auto &shortcut : shortcuts_.shortcuts_) {
-    if (shortcut->shortcut_id_.is_server()) {
-      shortcut_ids.push_back(shortcut->shortcut_id_);
-    }
-  }
-  return shortcut_ids;
-}
-
-void QuickReplyManager::sort_quick_reply_messages(vector<unique_ptr<QuickReplyMessage>> &messages) {
-  std::sort(messages.begin(), messages.end(),
-            [](const unique_ptr<QuickReplyMessage> &lhs, const unique_ptr<QuickReplyMessage> &rhs) {
-              return lhs->message_id < rhs->message_id;
-            });
-}
-
-QuickReplyManager::QuickReplyMessageUniqueId QuickReplyManager::get_quick_reply_unique_id(const QuickReplyMessage *m) {
-  return QuickReplyMessageUniqueId(m->message_id, m->edit_date);
-}
-
-vector<QuickReplyManager::QuickReplyMessageUniqueId> QuickReplyManager::get_quick_reply_unique_ids(
-    const vector<unique_ptr<QuickReplyMessage>> &messages) {
-  return transform(
-      messages, [](const unique_ptr<QuickReplyMessage> &message) { return get_quick_reply_unique_id(message.get()); });
-}
-
-vector<QuickReplyManager::QuickReplyMessageUniqueId> QuickReplyManager::get_server_quick_reply_unique_ids(
-    const vector<unique_ptr<QuickReplyMessage>> &messages) {
-  auto message_ids = get_quick_reply_unique_ids(messages);
-  td::remove_if(message_ids, [](const QuickReplyMessageUniqueId &message_id) { return !message_id.first.is_server(); });
-  return message_ids;
-}
-
-void QuickReplyManager::update_shortcut_from(Shortcut *new_shortcut, Shortcut *old_shortcut, bool is_partial,
-                                             bool *is_shortcut_changed, bool *are_messages_changed) {
-  CHECK(old_shortcut != nullptr);
-  CHECK(new_shortcut != nullptr);
-  CHECK(old_shortcut->shortcut_id_.is_server());
-  CHECK(old_shortcut->shortcut_id_ == new_shortcut->shortcut_id_);
-  CHECK(!old_shortcut->messages_.empty());
-  CHECK(!new_shortcut->messages_.empty());
-  auto old_unique_id = get_quick_reply_unique_id(old_shortcut->messages_[0].get());
-  auto old_message_count = get_shortcut_message_count(old_shortcut);
-  if (is_partial) {
-    // only the first server message is known
-    // delete all definitely deleted server messages and insert the new message in the correct place
-    auto old_message_ids = get_quick_reply_unique_ids(old_shortcut->messages_);
-    auto new_first_message_id = new_shortcut->messages_[0]->message_id;
-    auto it = old_shortcut->messages_.begin();
-    while (it != old_shortcut->messages_.end() && (*it)->message_id < new_first_message_id) {
-      if ((*it)->message_id.is_server()) {
-        delete_message_files(it->get());
-        it = old_shortcut->messages_.erase(it);
-      } else {
-        ++it;
-      }
-    }
-    if (it == old_shortcut->messages_.end() || (*it)->message_id != new_first_message_id) {
-      register_new_message(new_shortcut->messages_[0].get(), "update_shortcut_from");
-      old_shortcut->messages_.insert(it, std::move(new_shortcut->messages_[0]));
-    } else {
-      update_quick_reply_message(*it, std::move(new_shortcut->messages_[0]));
-    }
-    new_shortcut->messages_ = std::move(old_shortcut->messages_);
-    *are_messages_changed = (old_message_ids != get_quick_reply_unique_ids(new_shortcut->messages_));
-
-    int32 server_total_count = 0;
-    for (const auto &message : new_shortcut->messages_) {
-      if (message->message_id.is_server()) {
-        server_total_count++;
-      }
-    }
-    if (server_total_count > new_shortcut->server_total_count_) {
-      new_shortcut->server_total_count_ = server_total_count;
-    }
-  } else {
-    auto old_server_message_ids = get_server_quick_reply_unique_ids(old_shortcut->messages_);
-    auto new_server_message_ids = get_server_quick_reply_unique_ids(new_shortcut->messages_);
-    CHECK(static_cast<size_t>(new_shortcut->server_total_count_) == new_server_message_ids.size());
-    if (old_server_message_ids == new_server_message_ids) {
-      *are_messages_changed = false;
-      new_shortcut->messages_ = std::move(old_shortcut->messages_);
-    } else {
-      *are_messages_changed = true;
-      for (auto &old_message : old_shortcut->messages_) {
-        CHECK(old_message != nullptr);
-        if (!old_message->message_id.is_server()) {
-          new_shortcut->messages_.push_back(std::move(old_message));
-        } else {
-          bool is_deleted = true;
-          for (auto &new_message : new_shortcut->messages_) {
-            if (new_message->message_id == old_message->message_id) {
-              update_quick_reply_message(old_message, std::move(new_message));
-              new_message = std::move(old_message);
-              is_deleted = false;
-              break;
-            }
-          }
-          if (is_deleted) {
-            delete_message_files(old_message.get());
-          }
-        }
-      }
-      sort_quick_reply_messages(new_shortcut->messages_);
-    }
-  }
-  new_shortcut->local_total_count_ = old_shortcut->local_total_count_;
-  *is_shortcut_changed = old_unique_id != get_quick_reply_unique_id(new_shortcut->messages_[0].get()) ||
-                         new_shortcut->name_ != old_shortcut->name_ ||
-                         old_message_count != get_shortcut_message_count(new_shortcut);
-}
-
-string QuickReplyManager::get_quick_reply_shortcuts_database_key() {
-  return "quick_reply_shortcuts";
-}
-
-void QuickReplyManager::save_quick_reply_shortcuts() {
-  CHECK(shortcuts_.are_inited_);
-  LOG(INFO) << "Save quick reply shortcuts";
-  G()->td_db()->get_binlog_pmc()->set(get_quick_reply_shortcuts_database_key(),
-                                      log_event_store(shortcuts_).as_slice().str());
-}
-
-void QuickReplyManager::load_quick_reply_shortcuts() {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (shortcuts_.are_loaded_from_database_) {
-    return;
-  }
-  shortcuts_.are_loaded_from_database_ = true;
-  CHECK(shortcuts_.load_queries_.empty());
-
-  auto shortcuts_str = G()->td_db()->get_binlog_pmc()->get(get_quick_reply_shortcuts_database_key());
-  if (shortcuts_str.empty()) {
-    return reload_quick_reply_shortcuts();
-  }
-  auto status = log_event_parse(shortcuts_, shortcuts_str);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load quick replies: " << status;
-    G()->td_db()->get_binlog_pmc()->erase(get_quick_reply_shortcuts_database_key());
-    shortcuts_.shortcuts_.clear();
-    return reload_quick_reply_shortcuts();
-  }
-
-  Dependencies dependencies;
-  for (const auto &shortcut : shortcuts_.shortcuts_) {
-    for (const auto &message : shortcut->messages_) {
-      add_quick_reply_message_dependencies(dependencies, message.get());
-    }
-  }
-  if (!dependencies.resolve_force(td_, "load_quick_reply_shortcuts")) {
-    shortcuts_.shortcuts_.clear();
-    return reload_quick_reply_shortcuts();
-  }
-
-  shortcuts_.are_inited_ = true;
-  for (auto &shortcut : shortcuts_.shortcuts_) {
-    if (shortcut->shortcut_id_.get() >= next_local_shortcut_id_) {
-      next_local_shortcut_id_ = shortcut->shortcut_id_.get() + 1;
-    }
-    for (auto &message : shortcut->messages_) {
-      if (message->shortcut_id != shortcut->shortcut_id_) {
-        LOG(ERROR) << "Receive quick reply " << message->message_id << " in " << message->shortcut_id << " instead of "
-                   << shortcut->shortcut_id_;
-        message->shortcut_id = shortcut->shortcut_id_;
-      }
-      register_new_message(message.get(), "load_quick_reply_shortcuts");
-
-      if (message->message_id.is_server()) {
-        if (need_reget_message_content(message->content.get()) ||
-            (message->legacy_layer != 0 && message->legacy_layer < MTPROTO_LAYER)) {
-          reload_quick_reply_message(shortcut->shortcut_id_, message->message_id, Promise<Unit>());
-        }
-        if (message->edited_content != nullptr) {
-          message->edit_generation = ++current_message_edit_generation_;
-          do_send_message(message.get());
-        }
-      } else if (message->message_id.is_yet_unsent()) {
-        do_send_message(message.get());
-      }
-    }
-    send_update_quick_reply_shortcut(shortcut.get(), "load_quick_reply_shortcuts");
-    send_update_quick_reply_shortcut_messages(shortcut.get(), "load_quick_reply_shortcuts");
-  }
-
-  send_update_quick_reply_shortcuts();
-
-  reload_quick_reply_shortcuts();
-}
-
-td_api::object_ptr<td_api::updateQuickReplyShortcut> QuickReplyManager::get_update_quick_reply_shortcut_object(
-    const Shortcut *s, const char *source) const {
-  return td_api::make_object<td_api::updateQuickReplyShortcut>(get_quick_reply_shortcut_object(s, source));
-}
-
-void QuickReplyManager::send_update_quick_reply_shortcut(const Shortcut *s, const char *source) {
-  send_closure(G()->td(), &Td::send_update, get_update_quick_reply_shortcut_object(s, source));
-}
-
-td_api::object_ptr<td_api::updateQuickReplyShortcutDeleted>
-QuickReplyManager::get_update_quick_reply_shortcut_deleted_object(const Shortcut *s) const {
-  CHECK(s != nullptr);
-  return td_api::make_object<td_api::updateQuickReplyShortcutDeleted>(s->shortcut_id_.get());
-}
-
-void QuickReplyManager::send_update_quick_reply_shortcut_deleted(const Shortcut *s) {
-  send_closure(G()->td(), &Td::send_update, get_update_quick_reply_shortcut_deleted_object(s));
-}
-
-td_api::object_ptr<td_api::updateQuickReplyShortcuts> QuickReplyManager::get_update_quick_reply_shortcuts_object()
-    const {
-  CHECK(shortcuts_.are_inited_);
-  return td_api::make_object<td_api::updateQuickReplyShortcuts>(transform(
-      shortcuts_.shortcuts_, [](const unique_ptr<Shortcut> &shortcut) { return shortcut->shortcut_id_.get(); }));
-}
-
-void QuickReplyManager::send_update_quick_reply_shortcuts() {
-  send_closure(G()->td(), &Td::send_update, get_update_quick_reply_shortcuts_object());
-}
-
-td_api::object_ptr<td_api::updateQuickReplyShortcutMessages>
-QuickReplyManager::get_update_quick_reply_shortcut_messages_object(const Shortcut *s, const char *source) const {
-  CHECK(s != nullptr);
-  auto messages = transform(s->messages_, [this, source](const unique_ptr<QuickReplyMessage> &message) {
-    return get_quick_reply_message_object(message.get(), source);
-  });
-  return td_api::make_object<td_api::updateQuickReplyShortcutMessages>(s->shortcut_id_.get(), std::move(messages));
-}
-
-void QuickReplyManager::send_update_quick_reply_shortcut_messages(const Shortcut *s, const char *source) {
-  if (have_all_shortcut_messages(s)) {
-    send_closure(G()->td(), &Td::send_update, get_update_quick_reply_shortcut_messages_object(s, source));
-  }
-}
-
-vector<FileId> QuickReplyManager::get_message_file_ids(const QuickReplyMessage *m) const {
-  if (m == nullptr) {
-    return {};
-  }
-  if (m->edited_content != nullptr) {
-    auto file_ids = get_message_content_file_ids(m->edited_content.get(), td_);
-    if (!file_ids.empty()) {
-      for (auto file_id : get_message_content_file_ids(m->content.get(), td_)) {
-        if (!td::contains(file_ids, file_id)) {
-          file_ids.push_back(file_id);
-        }
-      }
-    }
-    return file_ids;
-  }
-  return get_message_content_file_ids(m->content.get(), td_);
-}
-
-void QuickReplyManager::delete_message_files(const QuickReplyMessage *m) const {
-  CHECK(m != nullptr);
-  unregister_message_content(m, "delete_message_files");
-  auto file_ids = get_message_file_ids(m);
-  if (file_ids.empty()) {
-    return;
-  }
-  for (auto file_id : file_ids) {
-    send_closure(G()->file_manager(), &FileManager::delete_file, file_id, Promise<Unit>(), "delete_message_files");
-  }
-  auto it = message_full_id_to_file_source_id_.find({m->shortcut_id, m->message_id});
-  if (it != message_full_id_to_file_source_id_.end()) {
-    td_->file_manager_->change_files_source(it->second, file_ids, {}, "delete_message_files");
-  }
-}
-
-void QuickReplyManager::change_message_files(const QuickReplyMessage *m, const vector<FileId> &old_file_ids) {
-  CHECK(m != nullptr);
-  auto new_file_ids = get_message_file_ids(m);
-  if (new_file_ids == old_file_ids) {
-    return;
-  }
-
-  QuickReplyMessageFullId message_full_id(m->shortcut_id, m->message_id);
-  LOG(INFO) << "Change files of " << message_full_id << " from " << old_file_ids << " to " << new_file_ids;
-  for (auto file_id : old_file_ids) {
-    if (!td::contains(new_file_ids, file_id)) {
-      send_closure(G()->file_manager(), &FileManager::delete_file, file_id, Promise<Unit>(), "change_message_files");
-    }
-  }
-
-  auto file_source_id = get_quick_reply_message_file_source_id(message_full_id);
-  if (file_source_id.is_valid()) {
-    td_->file_manager_->change_files_source(file_source_id, old_file_ids, new_file_ids, "change_message_files");
-  }
-}
-
-void QuickReplyManager::register_new_message(const QuickReplyMessage *m, const char *source) {
-  change_message_files(m, {});
-  register_message_content(m, source);
-}
-
-void QuickReplyManager::register_message_content(const QuickReplyMessage *m, const char *source) const {
-  register_quick_reply_message_content(td_, m->content.get(), {m->shortcut_id, m->message_id}, source);
-}
-
-void QuickReplyManager::unregister_message_content(const QuickReplyMessage *m, const char *source) const {
-  unregister_quick_reply_message_content(td_, m->content.get(), {m->shortcut_id, m->message_id}, source);
-}
-
-FileSourceId QuickReplyManager::get_quick_reply_message_file_source_id(QuickReplyMessageFullId message_full_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return FileSourceId();
-  }
-  if (!message_full_id.is_server()) {
-    return FileSourceId();
-  }
-
-  auto &file_source_id = message_full_id_to_file_source_id_[message_full_id];
-  if (!file_source_id.is_valid()) {
-    file_source_id = td_->file_reference_manager_->create_quick_reply_message_file_source(message_full_id);
-  }
-  return file_source_id;
-}
-
-void QuickReplyManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (shortcuts_.are_inited_) {
-    for (auto &shortcut : shortcuts_.shortcuts_) {
-      updates.push_back(get_update_quick_reply_shortcut_object(shortcut.get(), "get_current_state"));
-      if (have_all_shortcut_messages(shortcut.get())) {
-        updates.push_back(get_update_quick_reply_shortcut_messages_object(shortcut.get(), "get_current_state"));
-      }
-    }
-
-    updates.push_back(get_update_quick_reply_shortcuts_object());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/QuickReplyManager.h b/third-party/td/td/td/telegram/QuickReplyManager.h
deleted file mode 100644
index 799db49633..0000000000
--- a/third-party/td/td/td/telegram/QuickReplyManager.h
+++ /dev/null
@@ -1,484 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/QuickReplyMessageFullId.h"
-#include "td/telegram/QuickReplyShortcutId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class Dependencies;
-struct InputMessageContent;
-class MessageContent;
-struct ReplyMarkup;
-class Td;
-
-class QuickReplyManager final : public Actor {
- public:
-  QuickReplyManager(Td *td, ActorShared<> parent);
-
-  static Status check_shortcut_name(CSlice name);
-
-  void get_quick_reply_shortcuts(Promise<Unit> &&promise);
-
-  void set_quick_reply_shortcut_name(QuickReplyShortcutId shortcut_id, const string &name, Promise<Unit> &&promise);
-
-  void delete_quick_reply_shortcut(QuickReplyShortcutId shortcut_id, Promise<Unit> &&promise);
-
-  void reorder_quick_reply_shortcuts(const vector<QuickReplyShortcutId> &shortcut_ids, Promise<Unit> &&promise);
-
-  void update_quick_reply_message(telegram_api::object_ptr<telegram_api::Message> &&message_ptr);
-
-  void delete_pending_message_web_page(QuickReplyMessageFullId message_full_id);
-
-  void on_external_update_message_content(QuickReplyMessageFullId message_full_id, const char *source,
-                                          bool expect_no_message = false);
-
-  void delete_quick_reply_messages_from_updates(QuickReplyShortcutId shortcut_id, const vector<MessageId> &message_ids);
-
-  void get_quick_reply_shortcut_messages(QuickReplyShortcutId shortcut_id, Promise<Unit> &&promise);
-
-  void delete_quick_reply_shortcut_messages(QuickReplyShortcutId shortcut_id, const vector<MessageId> &message_ids,
-                                            Promise<Unit> &&promise);
-
-  Result<td_api::object_ptr<td_api::quickReplyMessage>> send_message(
-      const string &shortcut_name, MessageId reply_to_message_id,
-      td_api::object_ptr<td_api::InputMessageContent> &&input_message_content);
-
-  Result<td_api::object_ptr<td_api::quickReplyMessage>> send_inline_query_result_message(const string &shortcut_name,
-                                                                                         MessageId reply_to_message_id,
-                                                                                         int64 query_id,
-                                                                                         const string &result_id,
-                                                                                         bool hide_via_bot);
-
-  Result<td_api::object_ptr<td_api::quickReplyMessages>> send_message_group(
-      const string &shortcut_name, MessageId reply_to_message_id,
-      vector<td_api::object_ptr<td_api::InputMessageContent>> &&input_message_contents);
-
-  Result<td_api::object_ptr<td_api::quickReplyMessages>> resend_messages(const string &shortcut_name,
-                                                                         vector<MessageId> message_ids);
-
-  void edit_quick_reply_message(QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-                                Promise<Unit> &&promise);
-
-  void reload_quick_reply_shortcuts();
-
-  void reload_quick_reply_messages(QuickReplyShortcutId shortcut_id, Promise<Unit> &&promise);
-
-  void reload_quick_reply_message(QuickReplyShortcutId shortcut_id, MessageId message_id, Promise<Unit> &&promise);
-
-  struct QuickReplyMessageContent {
-    unique_ptr<MessageContent> content_;
-    MessageId original_message_id_;
-    MessageId original_reply_to_message_id_;
-    unique_ptr<ReplyMarkup> reply_markup_;
-    UserId via_bot_user_id_;
-    int64 media_album_id_;
-    bool invert_media_;
-    bool disable_web_page_preview_;
-  };
-  Result<vector<QuickReplyMessageContent>> get_quick_reply_message_contents(DialogId dialog_id,
-                                                                            QuickReplyShortcutId shortcut_id) const;
-
-  FileSourceId get_quick_reply_message_file_source_id(QuickReplyMessageFullId message_full_id);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  static constexpr size_t MAX_GROUPED_MESSAGES = 10;  // server side limit
-
-  struct QuickReplyMessage {
-    QuickReplyMessage() = default;
-    QuickReplyMessage(const QuickReplyMessage &) = delete;
-    QuickReplyMessage &operator=(const QuickReplyMessage &) = delete;
-    QuickReplyMessage(QuickReplyMessage &&) = delete;
-    QuickReplyMessage &operator=(QuickReplyMessage &&) = delete;
-    ~QuickReplyMessage();
-
-    MessageId message_id;
-    QuickReplyShortcutId shortcut_id;
-    int32 edit_date = 0;
-
-    int64 random_id = 0;  // for send_message
-
-    MessageId reply_to_message_id;
-
-    string send_emoji;  // for send_message
-
-    int64 inline_query_id = 0;  // for send_message
-    string inline_result_id;    // for send_message
-
-    UserId via_bot_user_id;
-
-    bool is_failed_to_send = false;
-    bool disable_notification = false;
-    bool invert_media = false;
-    bool disable_web_page_preview = false;
-
-    bool from_background = false;  // for send_message
-    bool hide_via_bot = false;     // for resend_message
-
-    bool edited_invert_media = false;
-    bool edited_disable_web_page_preview = false;
-
-    int32 legacy_layer = 0;
-
-    int32 send_error_code = 0;
-    string send_error_message;
-    double try_resend_at = 0;
-
-    int64 media_album_id = 0;
-
-    unique_ptr<MessageContent> content;
-    mutable FileUploadId file_upload_id;            // for send_message
-    mutable FileUploadId thumbnail_file_upload_id;  // for send_message
-    unique_ptr<ReplyMarkup> reply_markup;
-
-    unique_ptr<MessageContent> edited_content;
-    mutable FileUploadId edited_file_upload_id;
-    mutable FileUploadId edited_thumbnail_file_upload_id;
-    int64 edit_generation = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct Shortcut {
-    Shortcut() = default;
-    Shortcut(const Shortcut &) = delete;
-    Shortcut &operator=(const Shortcut &) = delete;
-    Shortcut(Shortcut &&) = delete;
-    Shortcut &operator=(Shortcut &&) = delete;
-    ~Shortcut();
-
-    string name_;
-    QuickReplyShortcutId shortcut_id_;
-    int32 server_total_count_ = 0;
-    int32 local_total_count_ = 0;
-    vector<unique_ptr<QuickReplyMessage>> messages_;
-    MessageId last_assigned_message_id_;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct Shortcuts {
-    vector<unique_ptr<Shortcut>> shortcuts_;
-    bool are_inited_ = false;
-    bool are_loaded_from_database_ = false;
-
-    vector<Promise<Unit>> load_queries_;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  class EditQuickReplyMessageQuery;
-  class SendQuickReplyInlineMessageQuery;
-  class SendQuickReplyMediaQuery;
-  class SendQuickReplyMessageQuery;
-  class SendQuickReplyMultiMediaQuery;
-  class UploadQuickReplyMediaQuery;
-
-  class UploadMediaCallback;
-  class UploadThumbnailCallback;
-
-  std::shared_ptr<UploadMediaCallback> upload_media_callback_;
-  std::shared_ptr<UploadThumbnailCallback> upload_thumbnail_callback_;
-
-  void tear_down() final;
-
-  static bool is_shortcut_name_letter(uint32 code);
-
-  void add_quick_reply_message_dependencies(Dependencies &dependencies, const QuickReplyMessage *m) const;
-
-  unique_ptr<QuickReplyMessage> create_message(telegram_api::object_ptr<telegram_api::Message> message_ptr,
-                                               const char *source) const;
-
-  bool can_edit_quick_reply_message(const QuickReplyMessage *m) const;
-
-  bool can_resend_quick_reply_message(const QuickReplyMessage *m) const;
-
-  td_api::object_ptr<td_api::MessageSendingState> get_message_sending_state_object(const QuickReplyMessage *m) const;
-
-  td_api::object_ptr<td_api::MessageContent> get_quick_reply_message_message_content_object(
-      const QuickReplyMessage *m) const;
-
-  td_api::object_ptr<td_api::quickReplyMessage> get_quick_reply_message_object(const QuickReplyMessage *m,
-                                                                               const char *source) const;
-
-  td_api::object_ptr<td_api::quickReplyShortcut> get_quick_reply_shortcut_object(const Shortcut *s,
-                                                                                 const char *source) const;
-
-  static int32 get_shortcut_message_count(const Shortcut *s);
-
-  static bool have_all_shortcut_messages(const Shortcut *s);
-
-  void on_reload_quick_reply_shortcuts(
-      Result<telegram_api::object_ptr<telegram_api::messages_QuickReplies>> r_shortcuts);
-
-  void on_load_quick_reply_success();
-
-  void on_load_quick_reply_fail(Status error);
-
-  void on_set_quick_reply_shortcut_name(QuickReplyShortcutId shortcut_id, const string &name, Promise<Unit> &&promise);
-
-  int64 get_shortcuts_hash() const;
-
-  void on_reload_quick_reply_messages(QuickReplyShortcutId shortcut_id,
-                                      Result<telegram_api::object_ptr<telegram_api::messages_Messages>> r_messages);
-
-  static int64 get_quick_reply_messages_hash(const Shortcut *s);
-
-  void on_reload_quick_reply_message(QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                     Result<telegram_api::object_ptr<telegram_api::messages_Messages>> r_messages,
-                                     Promise<Unit> &&promise);
-
-  void on_get_quick_reply_message(Shortcut *s, unique_ptr<QuickReplyMessage> message);
-
-  void update_quick_reply_message(unique_ptr<QuickReplyMessage> &old_message,
-                                  unique_ptr<QuickReplyMessage> &&new_message);
-
-  void delete_quick_reply_messages(Shortcut *s, const vector<MessageId> &message_ids, const char *source);
-
-  Shortcut *get_shortcut(QuickReplyShortcutId shortcut_id);
-
-  const Shortcut *get_shortcut(QuickReplyShortcutId shortcut_id) const;
-
-  Shortcut *get_shortcut(const string &name);
-
-  vector<unique_ptr<Shortcut>>::iterator get_shortcut_it(QuickReplyShortcutId shortcut_id);
-
-  vector<unique_ptr<QuickReplyMessage>>::iterator get_message_it(Shortcut *s, MessageId message_id);
-
-  const QuickReplyMessage *get_message(QuickReplyMessageFullId message_full_id) const;
-
-  const QuickReplyMessage *get_message(const Shortcut *s, MessageId message_id) const;
-
-  QuickReplyMessage *get_message_editable(QuickReplyMessageFullId message_full_id);
-
-  QuickReplyMessage *get_message_editable(Shortcut *s, MessageId message_id);
-
-  Result<Shortcut *> create_new_local_shortcut(const string &name, int32 new_message_count);
-
-  static MessageId get_input_reply_to_message_id(const Shortcut *s, MessageId reply_to_message_id);
-
-  Result<InputMessageContent> process_input_message_content(
-      td_api::object_ptr<td_api::InputMessageContent> &&input_message_content);
-
-  MessageId get_next_message_id(Shortcut *s, MessageType type) const;
-
-  MessageId get_next_yet_unsent_message_id(Shortcut *s) const;
-
-  MessageId get_next_local_message_id(Shortcut *s) const;
-
-  QuickReplyMessage *add_local_message(Shortcut *s, MessageId reply_to_message_id, unique_ptr<MessageContent> &&content,
-                                       bool invert_media, UserId via_bot_user_id, bool hide_via_bot,
-                                       bool disable_web_page_preview, string &&send_emoji);
-
-  bool is_shortcut_list_changed(const vector<unique_ptr<Shortcut>> &new_shortcuts) const;
-
-  vector<QuickReplyShortcutId> get_shortcut_ids() const;
-
-  vector<QuickReplyShortcutId> get_server_shortcut_ids() const;
-
-  static void sort_quick_reply_messages(vector<unique_ptr<QuickReplyMessage>> &messages);
-
-  using QuickReplyMessageUniqueId = std::pair<MessageId, int32>;
-
-  static QuickReplyMessageUniqueId get_quick_reply_unique_id(const QuickReplyMessage *m);
-
-  static vector<QuickReplyMessageUniqueId> get_quick_reply_unique_ids(
-      const vector<unique_ptr<QuickReplyMessage>> &messages);
-
-  static vector<QuickReplyMessageUniqueId> get_server_quick_reply_unique_ids(
-      const vector<unique_ptr<QuickReplyMessage>> &messages);
-
-  void update_shortcut_from(Shortcut *new_shortcut, Shortcut *old_shortcut, bool is_partial, bool *is_shortcut_changed,
-                            bool *are_messages_changed);
-
-  td_api::object_ptr<td_api::updateQuickReplyShortcut> get_update_quick_reply_shortcut_object(const Shortcut *s,
-                                                                                              const char *source) const;
-
-  void send_update_quick_reply_shortcut(const Shortcut *s, const char *source);
-
-  td_api::object_ptr<td_api::updateQuickReplyShortcutDeleted> get_update_quick_reply_shortcut_deleted_object(
-      const Shortcut *s) const;
-
-  void send_update_quick_reply_shortcut_deleted(const Shortcut *s);
-
-  td_api::object_ptr<td_api::updateQuickReplyShortcuts> get_update_quick_reply_shortcuts_object() const;
-
-  void send_update_quick_reply_shortcuts();
-
-  td_api::object_ptr<td_api::updateQuickReplyShortcutMessages> get_update_quick_reply_shortcut_messages_object(
-      const Shortcut *s, const char *source) const;
-
-  void send_update_quick_reply_shortcut_messages(const Shortcut *s, const char *source);
-
-  void set_quick_reply_shortcut_name_on_server(QuickReplyShortcutId shortcut_id, const string &name,
-                                               Promise<Unit> &&promise);
-
-  void delete_quick_reply_shortcut_from_server(QuickReplyShortcutId shortcut_id, Promise<Unit> &&promise);
-
-  void reorder_quick_reply_shortcuts_on_server(vector<QuickReplyShortcutId> shortcut_ids, Promise<Unit> &&promise);
-
-  void delete_quick_reply_messages_on_server(QuickReplyShortcutId shortcut_id, const vector<MessageId> &message_ids,
-                                             Promise<Unit> &&promise);
-
-  telegram_api::object_ptr<telegram_api::InputQuickReplyShortcut> get_input_quick_reply_shortcut(
-      QuickReplyShortcutId shortcut_id) const;
-
-  Status check_send_quick_reply_messages_response(QuickReplyShortcutId shortcut_id,
-                                                  const telegram_api::object_ptr<telegram_api::Updates> &updates_ptr,
-                                                  const vector<int64> &random_ids);
-
-  void process_send_quick_reply_updates(QuickReplyShortcutId shortcut_id, FileUploadId file_upload_id,
-                                        telegram_api::object_ptr<telegram_api::Updates> updates_ptr,
-                                        vector<int64> random_ids);
-
-  void on_failed_send_quick_reply_messages(QuickReplyShortcutId shortcut_id, vector<int64> random_ids, Status error);
-
-  void update_sent_message_content_from_temporary_message(const QuickReplyMessage *old_message,
-                                                          QuickReplyMessage *new_message, bool is_edit);
-
-  void update_sent_message_content_from_temporary_message(const unique_ptr<MessageContent> &old_content,
-                                                          FileUploadId old_file_upload_id,
-                                                          unique_ptr<MessageContent> &new_content,
-                                                          bool need_merge_files);
-
-  void on_cover_upload(QuickReplyMessageFullId message_full_id, int64 edit_generation, vector<int> bad_parts,
-                       Result<Unit> result);
-
-  void do_send_message(const QuickReplyMessage *m, vector<int> bad_parts = {});
-
-  void on_send_message_file_error(QuickReplyShortcutId shortcut_id, int64 random_id, vector<int> &&bad_parts);
-
-  void on_upload_media(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void do_send_media(const QuickReplyMessage *m, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-                     telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail);
-
-  void on_upload_media_error(FileUploadId file_upload_id, Status status);
-
-  void on_upload_thumbnail(FileUploadId thumbnail_file_upload_id,
-                           telegram_api::object_ptr<telegram_api::InputFile> thumbnail_input_file);
-
-  void on_upload_message_media_success(QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                       FileUploadId file_upload_id,
-                                       telegram_api::object_ptr<telegram_api::MessageMedia> &&media);
-
-  void on_upload_message_media_fail(QuickReplyShortcutId shortcut_id, MessageId message_id, Status error);
-
-  void on_upload_message_media_finished(int64 media_album_id, QuickReplyShortcutId shortcut_id, MessageId message_id,
-                                        Status result);
-
-  void do_send_message_group(QuickReplyShortcutId shortcut_id, int64 media_album_id);
-
-  void on_message_media_uploaded(const QuickReplyMessage *m,
-                                 telegram_api::object_ptr<telegram_api::InputMedia> &&input_media);
-
-  void on_send_media_group_file_reference_error(QuickReplyShortcutId shortcut_id, vector<int64> random_ids);
-
-  int64 generate_new_media_album_id() const;
-
-  void on_edit_quick_reply_message(QuickReplyShortcutId shortcut_id, MessageId message_id, int64 edit_generation,
-                                   FileUploadId file_upload_id, bool was_uploaded,
-                                   telegram_api::object_ptr<telegram_api::Updates> updates_ptr);
-
-  void fail_edit_quick_reply_message(QuickReplyShortcutId shortcut_id, MessageId message_id, int64 edit_generation,
-                                     FileUploadId file_upload_id, FileUploadId thumbnail_file_upload_id,
-                                     FileId cover_file_id, string file_reference, string cover_file_reference,
-                                     bool was_uploaded, bool was_thumbnail_uploaded, Status status);
-
-  string get_quick_reply_shortcuts_database_key();
-
-  void save_quick_reply_shortcuts();
-
-  void load_quick_reply_shortcuts();
-
-  vector<FileId> get_message_file_ids(const QuickReplyMessage *m) const;
-
-  void delete_message_files(const QuickReplyMessage *m) const;
-
-  void change_message_files(const QuickReplyMessage *m, const vector<FileId> &old_file_ids);
-
-  void register_new_message(const QuickReplyMessage *m, const char *source);
-
-  void register_message_content(const QuickReplyMessage *m, const char *source) const;
-
-  void unregister_message_content(const QuickReplyMessage *m, const char *source) const;
-
-  Shortcuts shortcuts_;
-
-  int32 next_local_shortcut_id_ = QuickReplyShortcutId::MAX_SERVER_SHORTCUT_ID + 1;
-
-  FlatHashSet<QuickReplyShortcutId, QuickReplyShortcutIdHash> deleted_shortcut_ids_;
-
-  FlatHashMap<QuickReplyShortcutId, QuickReplyShortcutId, QuickReplyShortcutIdHash> persistent_shortcut_ids_;
-
-  FlatHashMap<QuickReplyShortcutId, vector<Promise<Unit>>, QuickReplyShortcutIdHash> get_shortcut_messages_queries_;
-
-  FlatHashSet<QuickReplyMessageFullId, QuickReplyMessageFullIdHash> deleted_message_full_ids_;
-
-  FlatHashMap<QuickReplyMessageFullId, FileSourceId, QuickReplyMessageFullIdHash> message_full_id_to_file_source_id_;
-
-  FlatHashMap<FileUploadId, std::pair<QuickReplyMessageFullId, int64>, FileUploadIdHash> being_uploaded_files_;
-
-  struct UploadedThumbnailInfo {
-    QuickReplyMessageFullId quick_reply_message_full_id;
-    FileUploadId file_upload_id;                                   // original file file_upload_id
-    telegram_api::object_ptr<telegram_api::InputFile> input_file;  // original file InputFile
-    int64 edit_generation;
-  };
-  FlatHashMap<FileUploadId, UploadedThumbnailInfo, FileUploadIdHash> being_uploaded_thumbnails_;
-
-  struct PendingMessageGroupSend {
-    size_t finished_count = 0;
-    vector<MessageId> message_ids;
-    vector<bool> is_finished;
-    vector<Status> results;
-  };
-  FlatHashMap<int64, PendingMessageGroupSend> pending_message_group_sends_;  // media_album_id -> ...
-
-  int64 current_message_edit_generation_ = 0;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/QuickReplyMessageFullId.h b/third-party/td/td/td/telegram/QuickReplyMessageFullId.h
deleted file mode 100644
index 74a210c4b3..0000000000
--- a/third-party/td/td/td/telegram/QuickReplyMessageFullId.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageId.h"
-#include "td/telegram/QuickReplyShortcutId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct QuickReplyMessageFullId {
- private:
-  QuickReplyShortcutId quick_reply_shortcut_id;
-  MessageId message_id;
-
- public:
-  QuickReplyMessageFullId() = default;
-
-  QuickReplyMessageFullId(QuickReplyShortcutId quick_reply_shortcut_id, MessageId message_id)
-      : quick_reply_shortcut_id(quick_reply_shortcut_id), message_id(message_id) {
-  }
-
-  bool operator==(const QuickReplyMessageFullId &other) const {
-    return quick_reply_shortcut_id == other.quick_reply_shortcut_id && message_id == other.message_id;
-  }
-
-  bool operator!=(const QuickReplyMessageFullId &other) const {
-    return !(*this == other);
-  }
-
-  QuickReplyShortcutId get_quick_reply_shortcut_id() const {
-    return quick_reply_shortcut_id;
-  }
-
-  MessageId get_message_id() const {
-    return message_id;
-  }
-
-  bool is_valid() const {
-    return quick_reply_shortcut_id.is_valid() && message_id.is_valid();
-  }
-
-  bool is_server() const {
-    return quick_reply_shortcut_id.is_valid() && message_id.is_server();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    quick_reply_shortcut_id.store(storer);
-    message_id.store(storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    quick_reply_shortcut_id.parse(parser);
-    message_id.parse(parser);
-  }
-};
-
-struct QuickReplyMessageFullIdHash {
-  uint32 operator()(QuickReplyMessageFullId quick_reply_message_full_id) const {
-    return combine_hashes(QuickReplyShortcutIdHash()(quick_reply_message_full_id.get_quick_reply_shortcut_id()),
-                          MessageIdHash()(quick_reply_message_full_id.get_message_id()));
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, QuickReplyMessageFullId quick_reply_message_full_id) {
-  return string_builder << quick_reply_message_full_id.get_message_id() << " from "
-                        << quick_reply_message_full_id.get_quick_reply_shortcut_id();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/QuickReplyShortcutId.h b/third-party/td/td/td/telegram/QuickReplyShortcutId.h
deleted file mode 100644
index 901dfc71e5..0000000000
--- a/third-party/td/td/td/telegram/QuickReplyShortcutId.h
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class QuickReplyShortcutId {
-  int32 id = 0;
-
- public:
-  static constexpr int32 MAX_SERVER_SHORTCUT_ID = 1999999999;
-
-  QuickReplyShortcutId() = default;
-
-  explicit constexpr QuickReplyShortcutId(int32 quick_reply_shortcut_id) : id(quick_reply_shortcut_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  QuickReplyShortcutId(T quick_reply_shortcut_id) = delete;
-
-  int32 get() const {
-    return id;
-  }
-
-  static vector<int32> get_input_quick_reply_shortcut_ids(
-      const vector<QuickReplyShortcutId> &quick_reply_shortcut_ids) {
-    vector<int32> input_quick_reply_shortcut_ids;
-    input_quick_reply_shortcut_ids.reserve(quick_reply_shortcut_ids.size());
-    for (auto &quick_reply_shortcut_id : quick_reply_shortcut_ids) {
-      input_quick_reply_shortcut_ids.emplace_back(quick_reply_shortcut_id.get());
-    }
-    return input_quick_reply_shortcut_ids;
-  }
-
-  static vector<QuickReplyShortcutId> get_quick_reply_shortcut_ids(const vector<int32> &shortcut_ids) {
-    vector<QuickReplyShortcutId> quick_reply_shortcut_ids;
-    quick_reply_shortcut_ids.reserve(shortcut_ids.size());
-    for (auto &shortcut_id : shortcut_ids) {
-      quick_reply_shortcut_ids.emplace_back(shortcut_id);
-    }
-    return quick_reply_shortcut_ids;
-  }
-
-  bool operator==(const QuickReplyShortcutId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const QuickReplyShortcutId &other) const {
-    return id != other.id;
-  }
-
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  bool is_server() const {
-    return id > 0 && id <= MAX_SERVER_SHORTCUT_ID;
-  }
-
-  bool is_local() const {
-    return id > MAX_SERVER_SHORTCUT_ID;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_int();
-  }
-};
-
-struct QuickReplyShortcutIdHash {
-  uint32 operator()(QuickReplyShortcutId quick_reply_shortcut_id) const {
-    return Hash<int32>()(quick_reply_shortcut_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, QuickReplyShortcutId quick_reply_shortcut_id) {
-  return string_builder << "shortcut " << quick_reply_shortcut_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionListType.cpp b/third-party/td/td/td/telegram/ReactionListType.cpp
deleted file mode 100644
index b26a9c7707..0000000000
--- a/third-party/td/td/td/telegram/ReactionListType.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReactionListType.h"
-
-namespace td {
-
-string get_reaction_list_type_database_key(ReactionListType reaction_list_type) {
-  switch (reaction_list_type) {
-    case ReactionListType::Recent:
-      return "recent_reactions";
-    case ReactionListType::Top:
-      return "top_reactions";
-    case ReactionListType::DefaultTag:
-      return "default_tag_reactions";
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, ReactionListType reaction_list_type) {
-  switch (reaction_list_type) {
-    case ReactionListType::Recent:
-      return string_builder << "recent reactions";
-    case ReactionListType::Top:
-      return string_builder << "top reactions";
-    case ReactionListType::DefaultTag:
-      return string_builder << "default tag reactions";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionListType.h b/third-party/td/td/td/telegram/ReactionListType.h
deleted file mode 100644
index 7cc944026c..0000000000
--- a/third-party/td/td/td/telegram/ReactionListType.h
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class ReactionListType : int32 { Recent, Top, DefaultTag };
-
-static constexpr int32 MAX_REACTION_LIST_TYPE = 3;
-
-string get_reaction_list_type_database_key(ReactionListType reaction_list_type);
-
-StringBuilder &operator<<(StringBuilder &string_builder, ReactionListType reaction_list_type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionManager.cpp b/third-party/td/td/td/telegram/ReactionManager.cpp
deleted file mode 100644
index 2593de7d21..0000000000
--- a/third-party/td/td/td/telegram/ReactionManager.cpp
+++ /dev/null
@@ -1,1541 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReactionManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/PaidReactionType.hpp"
-#include "td/telegram/ReactionManager.hpp"
-#include "td/telegram/ReactionType.hpp"
-#include "td/telegram/SavedMessagesManager.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-#include <type_traits>
-
-namespace td {
-
-class GetAvailableReactionsQuery final : public Td::ResultHandler {
- public:
-  void send(int32 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getAvailableReactions(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getAvailableReactions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetAvailableReactionsQuery: " << to_string(ptr);
-    td_->reaction_manager_->on_get_available_reactions(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for GetAvailableReactionsQuery: " << status;
-    td_->reaction_manager_->on_get_available_reactions(nullptr);
-  }
-};
-
-class GetReactionListQuery final : public Td::ResultHandler {
-  ReactionListType reaction_list_type_;
-
- public:
-  void send(ReactionListType reaction_list_type, int64 hash) {
-    reaction_list_type_ = reaction_list_type;
-    switch (reaction_list_type) {
-      case ReactionListType::Recent:
-        send_query(G()->net_query_creator().create(
-            telegram_api::messages_getRecentReactions(ReactionManager::MAX_RECENT_REACTIONS, hash)));
-        break;
-      case ReactionListType::Top:
-        send_query(G()->net_query_creator().create(telegram_api::messages_getTopReactions(200, hash)));
-        break;
-      case ReactionListType::DefaultTag:
-        send_query(G()->net_query_creator().create(telegram_api::messages_getDefaultTagReactions(hash)));
-        break;
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_getRecentReactions::ReturnType,
-                               telegram_api::messages_getTopReactions::ReturnType>::value,
-                  "");
-    static_assert(std::is_same<telegram_api::messages_getRecentReactions::ReturnType,
-                               telegram_api::messages_getDefaultTagReactions::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_getRecentReactions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetReactionListQuery: " << to_string(ptr);
-    td_->reaction_manager_->on_get_reaction_list(reaction_list_type_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for GetReactionListQuery: " << status;
-    td_->reaction_manager_->on_get_reaction_list(reaction_list_type_, nullptr);
-  }
-};
-
-class ClearRecentReactionsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ClearRecentReactionsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::messages_clearRecentReactions()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_clearRecentReactions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->reaction_manager_->reload_reaction_list(ReactionListType::Recent, "ClearRecentReactionsQuery");
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for clear recent reactions: " << status;
-    }
-    td_->reaction_manager_->reload_reaction_list(ReactionListType::Recent, "ClearRecentReactionsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetDefaultReactionQuery final : public Td::ResultHandler {
-  ReactionType reaction_type_;
-
- public:
-  void send(const ReactionType &reaction_type) {
-    reaction_type_ = reaction_type;
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_setDefaultReaction(reaction_type.get_input_reaction())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setDefaultReaction>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!result_ptr.ok()) {
-      return on_error(Status::Error(400, "Receive false"));
-    }
-
-    auto default_reaction = td_->option_manager_->get_option_string("default_reaction", "-");
-    if (default_reaction != reaction_type_.get_string()) {
-      td_->reaction_manager_->send_set_default_reaction_query();
-    } else {
-      td_->option_manager_->set_option_empty("default_reaction_needs_sync");
-    }
-  }
-
-  void on_error(Status status) final {
-    if (G()->close_flag()) {
-      return;
-    }
-
-    LOG(INFO) << "Receive error for SetDefaultReactionQuery: " << status;
-    td_->option_manager_->set_option_empty("default_reaction_needs_sync");
-    send_closure(G()->config_manager(), &ConfigManager::request_config, false);
-  }
-};
-
-class GetSavedReactionTagsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_SavedReactionTags>> promise_;
-
- public:
-  explicit GetSavedReactionTagsQuery(
-      Promise<telegram_api::object_ptr<telegram_api::messages_SavedReactionTags>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(SavedMessagesTopicId saved_messages_topic_id, int64 hash) {
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::InputPeer> saved_input_peer;
-    if (saved_messages_topic_id.is_valid()) {
-      flags |= telegram_api::messages_getSavedReactionTags::PEER_MASK;
-      saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-      CHECK(saved_input_peer != nullptr);
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getSavedReactionTags(flags, std::move(saved_input_peer), hash),
-        {td_->dialog_manager_->get_my_dialog_id()}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSavedReactionTags>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetSavedReactionTagsQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateSavedReactionTagQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UpdateSavedReactionTagQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const ReactionType &reaction_type, const string &title) {
-    int32 flags = 0;
-    if (!title.empty()) {
-      flags |= telegram_api::messages_updateSavedReactionTag::TITLE_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_updateSavedReactionTag(flags, reaction_type.get_input_reaction(), title)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_updateSavedReactionTag>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetMessageAvailableEffectsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_AvailableEffects>> promise_;
-
- public:
-  explicit GetMessageAvailableEffectsQuery(
-      Promise<telegram_api::object_ptr<telegram_api::messages_AvailableEffects>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int32 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getAvailableEffects(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getAvailableEffects>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetMessageAvailableEffectsQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-ReactionManager::SavedReactionTag::SavedReactionTag(telegram_api::object_ptr<telegram_api::savedReactionTag> &&tag)
-    : reaction_type_(tag->reaction_)
-    , hash_(reaction_type_.get_hash())
-    , title_(std::move(tag->title_))
-    , count_(tag->count_) {
-}
-
-ReactionManager::SavedReactionTag::SavedReactionTag(const ReactionType &reaction_type, const string &title, int32 count)
-    : reaction_type_(reaction_type), hash_(reaction_type_.get_hash()), title_(title), count_(count) {
-}
-
-td_api::object_ptr<td_api::savedMessagesTag> ReactionManager::SavedReactionTag::get_saved_messages_tag_object() const {
-  return td_api::make_object<td_api::savedMessagesTag>(reaction_type_.get_reaction_type_object(), title_, count_);
-}
-
-template <class StorerT>
-void ReactionManager::SavedReactionTag::store(StorerT &storer) const {
-  bool has_title = !title_.empty();
-  bool has_count = count_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_title);
-  STORE_FLAG(has_count);
-  END_STORE_FLAGS();
-  td::store(reaction_type_, storer);
-  if (has_title) {
-    td::store(title_, storer);
-  }
-  if (has_count) {
-    td::store(count_, storer);
-  }
-}
-
-template <class ParserT>
-void ReactionManager::SavedReactionTag::parse(ParserT &parser) {
-  bool has_title;
-  bool has_count;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_title);
-  PARSE_FLAG(has_count);
-  END_PARSE_FLAGS();
-  td::parse(reaction_type_, parser);
-  hash_ = reaction_type_.get_hash();
-  if (has_title) {
-    td::parse(title_, parser);
-  }
-  if (has_count) {
-    td::parse(count_, parser);
-  }
-}
-
-bool operator==(const ReactionManager::SavedReactionTag &lhs, const ReactionManager::SavedReactionTag &rhs) {
-  return lhs.reaction_type_ == rhs.reaction_type_ && lhs.title_ == rhs.title_ && lhs.count_ == rhs.count_;
-}
-
-bool operator!=(const ReactionManager::SavedReactionTag &lhs, const ReactionManager::SavedReactionTag &rhs) {
-  return !(lhs == rhs);
-}
-
-bool operator<(const ReactionManager::SavedReactionTag &lhs, const ReactionManager::SavedReactionTag &rhs) {
-  if (lhs.count_ != rhs.count_) {
-    return lhs.count_ > rhs.count_;
-  }
-  return lhs.hash_ > rhs.hash_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReactionManager::SavedReactionTag &saved_reaction_tag) {
-  return string_builder << "SavedMessagesTag{" << saved_reaction_tag.reaction_type_ << '(' << saved_reaction_tag.title_
-                        << ") X " << saved_reaction_tag.count_ << '}';
-}
-
-td_api::object_ptr<td_api::savedMessagesTags> ReactionManager::SavedReactionTags::get_saved_messages_tags_object()
-    const {
-  return td_api::make_object<td_api::savedMessagesTags>(
-      transform(tags_, [](const SavedReactionTag &tag) { return tag.get_saved_messages_tag_object(); }));
-}
-
-bool ReactionManager::SavedReactionTags::update_saved_messages_tags(const vector<ReactionType> &old_tags,
-                                                                    const vector<ReactionType> &new_tags) {
-  if (!is_inited_) {
-    return false;
-  }
-  bool is_changed = false;
-  for (const auto &old_tag : old_tags) {
-    if (!td::contains(new_tags, old_tag)) {
-      CHECK(!old_tag.is_empty());
-      for (auto it = tags_.begin(); it != tags_.end(); ++it) {
-        auto &tag = *it;
-        if (tag.reaction_type_ == old_tag) {
-          tag.count_--;
-          if (!tag.is_valid()) {
-            tags_.erase(it);
-          }
-          is_changed = true;
-          break;
-        }
-      }
-    }
-  }
-  for (const auto &new_tag : new_tags) {
-    if (!td::contains(old_tags, new_tag)) {
-      CHECK(!new_tag.is_empty());
-      is_changed = true;
-      bool is_found = false;
-      for (auto &tag : tags_) {
-        if (tag.reaction_type_ == new_tag) {
-          tag.count_++;
-          is_found = true;
-          break;
-        }
-      }
-      if (!is_found) {
-        tags_.emplace_back(new_tag, string(), 1);
-      }
-    }
-  }
-  if (is_changed) {
-    std::sort(tags_.begin(), tags_.end());
-    hash_ = calc_hash();
-  }
-  return is_changed;
-}
-
-bool ReactionManager::SavedReactionTags::set_tag_title(const ReactionType &reaction_type, const string &title) {
-  if (!is_inited_) {
-    return false;
-  }
-  for (auto it = tags_.begin(); it != tags_.end(); ++it) {
-    auto &tag = *it;
-    if (tag.reaction_type_ == reaction_type) {
-      if (tag.title_ == title) {
-        return false;
-      }
-      tag.title_ = title;
-      if (!tag.is_valid()) {
-        tags_.erase(it);
-      }
-      hash_ = calc_hash();
-      return true;
-    }
-  }
-  tags_.emplace_back(reaction_type, title, 0);
-  std::sort(tags_.begin(), tags_.end());
-  hash_ = calc_hash();
-  return true;
-}
-
-int64 ReactionManager::SavedReactionTags::calc_hash() const {
-  vector<uint64> numbers;
-  for (const auto &tag : tags_) {
-    numbers.push_back(tag.hash_);
-    if (!tag.title_.empty()) {
-      numbers.push_back(get_md5_string_hash(tag.title_));
-    }
-    numbers.push_back(tag.count_);
-  }
-  return get_vector_hash(numbers);
-}
-
-template <class StorerT>
-void ReactionManager::SavedReactionTags::store(StorerT &storer) const {
-  CHECK(is_inited_);
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(tags_, storer);
-}
-
-template <class ParserT>
-void ReactionManager::SavedReactionTags::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(tags_, parser);
-  hash_ = calc_hash();
-  is_inited_ = true;
-}
-
-ReactionManager::ReactionManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-ReactionManager::~ReactionManager() = default;
-
-void ReactionManager::start_up() {
-  init();
-}
-
-void ReactionManager::tear_down() {
-  parent_.reset();
-}
-
-void ReactionManager::init() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (is_inited_ || !td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  is_inited_ = true;
-
-  td_->stickers_manager_->init();
-
-  load_active_reactions();
-  load_active_message_effects();
-  load_default_paid_reaction_type();
-
-  if (td_->option_manager_->get_option_boolean("default_reaction_needs_sync")) {
-    send_set_default_reaction_query();
-  }
-}
-
-td_api::object_ptr<td_api::emojiReaction> ReactionManager::get_emoji_reaction_object(const string &emoji) const {
-  for (auto &reaction : reactions_.reactions_) {
-    if (reaction.reaction_type_.get_string() == emoji) {
-      return td_api::make_object<td_api::emojiReaction>(
-          reaction.reaction_type_.get_string(), reaction.title_, reaction.is_active_,
-          td_->stickers_manager_->get_sticker_object(reaction.static_icon_),
-          td_->stickers_manager_->get_sticker_object(reaction.appear_animation_),
-          td_->stickers_manager_->get_sticker_object(reaction.select_animation_),
-          td_->stickers_manager_->get_sticker_object(reaction.activate_animation_),
-          td_->stickers_manager_->get_sticker_object(reaction.effect_animation_),
-          td_->stickers_manager_->get_sticker_object(reaction.around_animation_),
-          td_->stickers_manager_->get_sticker_object(reaction.center_animation_));
-    }
-  }
-  return nullptr;
-}
-
-void ReactionManager::get_emoji_reaction(const string &emoji,
-                                         Promise<td_api::object_ptr<td_api::emojiReaction>> &&promise) {
-  load_reactions();
-  if (reactions_.reactions_.empty() && reactions_.are_being_reloaded_) {
-    pending_get_emoji_reaction_queries_.emplace_back(emoji, std::move(promise));
-    return;
-  }
-  promise.set_value(get_emoji_reaction_object(emoji));
-}
-
-td_api::object_ptr<td_api::availableReactions> ReactionManager::get_sorted_available_reactions(
-    ChatReactions available_reactions, ChatReactions active_reactions, int32 row_size, bool is_tag,
-    ReactionUnavailabilityReason unavailability_reason) {
-  if (is_tag) {
-    load_reaction_list(ReactionListType::DefaultTag);
-  } else {
-    load_reaction_list(ReactionListType::Recent);
-  }
-  load_reaction_list(ReactionListType::Top);
-
-  if (row_size < 5 || row_size > 25) {
-    row_size = 8;
-  }
-
-  bool is_premium = td_->option_manager_->get_option_boolean("is_premium");
-  bool show_premium = is_premium || is_tag;
-  vector<ReactionType> recent_reactions;
-  vector<ReactionType> top_reactions;
-  if (is_tag) {
-    if (is_premium) {
-      auto all_tags = get_saved_reaction_tags(SavedMessagesTopicId());
-      for (auto &tag : all_tags->tags_) {
-        top_reactions.push_back(tag.reaction_type_);
-      }
-      for (auto &reaction_type : get_reaction_list(ReactionListType::DefaultTag).reaction_types_) {
-        if (!td::contains(top_reactions, reaction_type)) {
-          top_reactions.push_back(reaction_type);
-        }
-      }
-      for (auto &reaction_type : get_reaction_list(ReactionListType::Top).reaction_types_) {
-        if (!td::contains(top_reactions, reaction_type)) {
-          top_reactions.push_back(reaction_type);
-        }
-      }
-    } else {
-      top_reactions = get_reaction_list(ReactionListType::DefaultTag).reaction_types_;
-    }
-  } else {
-    recent_reactions = get_reaction_list(ReactionListType::Recent).reaction_types_;
-    top_reactions = get_reaction_list(ReactionListType::Top).reaction_types_;
-  }
-  LOG(INFO) << "Have available reactions " << available_reactions << " to be sorted by top reactions " << top_reactions
-            << " and recent reactions " << recent_reactions
-            << " and paid reaction = " << available_reactions.paid_reactions_available_;
-  if (active_reactions.allow_all_custom_ && active_reactions.allow_all_regular_) {
-    for (auto &reaction_type : recent_reactions) {
-      if (reaction_type.is_custom_reaction()) {
-        show_premium = true;
-      }
-    }
-    for (auto &reaction_type : top_reactions) {
-      if (reaction_type.is_custom_reaction()) {
-        show_premium = true;
-      }
-    }
-  }
-
-  FlatHashSet<ReactionType, ReactionTypeHash> all_available_reaction_types;
-  for (const auto &reaction_type : available_reactions.reaction_types_) {
-    CHECK(!reaction_type.is_empty());
-    all_available_reaction_types.insert(reaction_type);
-  }
-  if (available_reactions.paid_reactions_available_ ||
-      (!available_reactions.reaction_types_.empty() && available_reactions.reaction_types_[0].is_paid_reaction())) {
-    all_available_reaction_types.insert(ReactionType::paid());
-    top_reactions.insert(top_reactions.begin(), ReactionType::paid());
-  }
-
-  vector<td_api::object_ptr<td_api::availableReaction>> top_reaction_objects;
-  vector<td_api::object_ptr<td_api::availableReaction>> recent_reaction_objects;
-  vector<td_api::object_ptr<td_api::availableReaction>> popular_reaction_objects;
-  vector<td_api::object_ptr<td_api::availableReaction>> last_reaction_objects;
-
-  FlatHashSet<ReactionType, ReactionTypeHash> added_custom_reaction_types;
-  auto add_reactions = [&](vector<td_api::object_ptr<td_api::availableReaction>> &reaction_objects,
-                           const vector<ReactionType> &reaction_types) {
-    for (auto &reaction_type : reaction_types) {
-      if (all_available_reaction_types.erase(reaction_type) != 0) {
-        // add available reaction
-        if (reaction_type.is_custom_reaction()) {
-          added_custom_reaction_types.insert(reaction_type);
-        }
-        reaction_objects.push_back(td_api::make_object<td_api::availableReaction>(
-            reaction_type.get_reaction_type_object(), is_tag && !is_premium));
-      } else if (reaction_type.is_custom_reaction() && available_reactions.allow_all_custom_ &&
-                 added_custom_reaction_types.insert(reaction_type).second) {
-        // add implicitly available custom reaction
-        reaction_objects.push_back(
-            td_api::make_object<td_api::availableReaction>(reaction_type.get_reaction_type_object(), !is_premium));
-      } else {
-        // skip the reaction
-      }
-    }
-  };
-  if (show_premium) {
-    if (!is_tag && top_reactions.size() > 2 * static_cast<size_t>(row_size)) {
-      top_reactions.resize(2 * static_cast<size_t>(row_size));
-    }
-    add_reactions(top_reaction_objects, top_reactions);
-    add_reactions(recent_reaction_objects, recent_reactions);
-  } else {
-    add_reactions(top_reaction_objects, top_reactions);
-  }
-  add_reactions(last_reaction_objects, active_reaction_types_);
-  add_reactions(last_reaction_objects, available_reactions.reaction_types_);
-
-  if (show_premium) {
-    if (recent_reactions.empty()) {
-      popular_reaction_objects = std::move(last_reaction_objects);
-    } else {
-      auto max_objects = 10 * static_cast<size_t>(row_size);
-      if (recent_reaction_objects.size() + last_reaction_objects.size() > max_objects) {
-        if (last_reaction_objects.size() < max_objects) {
-          recent_reaction_objects.resize(max_objects - last_reaction_objects.size());
-        } else {
-          recent_reaction_objects.clear();
-        }
-      }
-      append(recent_reaction_objects, std::move(last_reaction_objects));
-    }
-  } else {
-    append(top_reaction_objects, std::move(last_reaction_objects));
-  }
-
-  CHECK(all_available_reaction_types.empty());
-
-  td_api::object_ptr<td_api::ReactionUnavailabilityReason> reason;
-  switch (unavailability_reason) {
-    case ReactionUnavailabilityReason::None:
-      break;
-    case ReactionUnavailabilityReason::AnonymousAdministrator:
-      reason = td_api::make_object<td_api::reactionUnavailabilityReasonAnonymousAdministrator>();
-      break;
-    case ReactionUnavailabilityReason::Guest:
-      reason = td_api::make_object<td_api::reactionUnavailabilityReasonGuest>();
-      break;
-    default:
-      UNREACHABLE();
-  }
-
-  return td_api::make_object<td_api::availableReactions>(
-      std::move(top_reaction_objects), std::move(recent_reaction_objects), std::move(popular_reaction_objects),
-      available_reactions.allow_all_custom_, is_tag, std::move(reason));
-}
-
-td_api::object_ptr<td_api::availableReactions> ReactionManager::get_available_reactions(int32 row_size) {
-  ChatReactions available_reactions;
-  available_reactions.reaction_types_ = active_reaction_types_;
-  available_reactions.allow_all_custom_ = true;
-  return get_sorted_available_reactions(std::move(available_reactions), ChatReactions(true, true), row_size, false,
-                                        ReactionUnavailabilityReason::None);
-}
-
-void ReactionManager::add_recent_reaction(const ReactionType &reaction_type) {
-  load_reaction_list(ReactionListType::Recent);
-
-  auto &recent_reactions = get_reaction_list(ReactionListType::Recent);
-  auto &reactions = recent_reactions.reaction_types_;
-  if (!reactions.empty() && reactions[0] == reaction_type) {
-    return;
-  }
-  CHECK(!reaction_type.is_paid_reaction());
-
-  add_to_top(reactions, MAX_RECENT_REACTIONS, reaction_type);
-
-  recent_reactions.hash_ = get_reaction_types_hash(reactions);
-}
-
-void ReactionManager::clear_recent_reactions(Promise<Unit> &&promise) {
-  load_reaction_list(ReactionListType::Recent);
-
-  auto &recent_reactions = get_reaction_list(ReactionListType::Recent);
-  if (recent_reactions.reaction_types_.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  recent_reactions.hash_ = 0;
-  recent_reactions.reaction_types_.clear();
-
-  td_->create_handler<ClearRecentReactionsQuery>(std::move(promise))->send();
-}
-
-vector<ReactionType> ReactionManager::get_default_tag_reactions() {
-  load_reaction_list(ReactionListType::DefaultTag);
-
-  return get_reaction_list(ReactionListType::DefaultTag).reaction_types_;
-}
-
-void ReactionManager::reload_reactions() {
-  if (G()->close_flag() || reactions_.are_being_reloaded_) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  reactions_.are_being_reloaded_ = true;
-  load_reactions();  // must be after are_being_reloaded_ is set to true to avoid recursion
-  td_->create_handler<GetAvailableReactionsQuery>()->send(reactions_.hash_);
-}
-
-void ReactionManager::reload_reaction_list(ReactionListType reaction_list_type, const char *source) {
-  if (G()->close_flag()) {
-    return;
-  }
-  LOG(INFO) << "Reload " << reaction_list_type << " from " << source;
-  auto &reaction_list = get_reaction_list(reaction_list_type);
-  if (reaction_list.is_being_reloaded_) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  reaction_list.is_being_reloaded_ = true;
-  load_reaction_list(reaction_list_type);  // must be after is_being_reloaded_ is set to true to avoid recursion
-  td_->create_handler<GetReactionListQuery>()->send(reaction_list_type, reaction_list.hash_);
-}
-
-td_api::object_ptr<td_api::updateActiveEmojiReactions> ReactionManager::get_update_active_emoji_reactions_object()
-    const {
-  return td_api::make_object<td_api::updateActiveEmojiReactions>(
-      transform(active_reaction_types_, [](const ReactionType &reaction_type) { return reaction_type.get_string(); }));
-}
-
-ReactionManager::ReactionList &ReactionManager::get_reaction_list(ReactionListType reaction_list_type) {
-  return reaction_lists_[static_cast<int32>(reaction_list_type)];
-}
-
-void ReactionManager::save_active_reactions() {
-  LOG(INFO) << "Save " << active_reaction_types_.size() << " active reactions";
-  G()->td_db()->get_binlog_pmc()->set("active_reactions", log_event_store(active_reaction_types_).as_slice().str());
-}
-
-void ReactionManager::save_reactions() {
-  LOG(INFO) << "Save " << reactions_.reactions_.size() << " available reactions";
-  are_reactions_loaded_from_database_ = true;
-  G()->td_db()->get_binlog_pmc()->set("reactions", log_event_store(reactions_).as_slice().str());
-}
-
-void ReactionManager::save_reaction_list(ReactionListType reaction_list_type) {
-  auto &reaction_list = get_reaction_list(reaction_list_type);
-  LOG(INFO) << "Save " << reaction_list.reaction_types_.size() << ' ' << reaction_list_type;
-  reaction_list.is_loaded_from_database_ = true;
-  G()->td_db()->get_binlog_pmc()->set(get_reaction_list_type_database_key(reaction_list_type),
-                                      log_event_store(reaction_list).as_slice().str());
-}
-
-void ReactionManager::load_active_reactions() {
-  LOG(INFO) << "Loading active reactions";
-  string active_reaction_types = G()->td_db()->get_binlog_pmc()->get("active_reactions");
-  if (active_reaction_types.empty()) {
-    return reload_reactions();
-  }
-
-  auto status = log_event_parse(active_reaction_types_, active_reaction_types);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load active reactions: " << status;
-    active_reaction_types_ = {};
-    return reload_reactions();
-  }
-
-  LOG(INFO) << "Successfully loaded " << active_reaction_types_.size() << " active reactions";
-
-  td_->messages_manager_->set_active_reactions(active_reaction_types_);
-
-  send_closure(G()->td(), &Td::send_update, get_update_active_emoji_reactions_object());
-}
-
-void ReactionManager::load_reactions() {
-  if (are_reactions_loaded_from_database_) {
-    return;
-  }
-  are_reactions_loaded_from_database_ = true;
-
-  string reactions = G()->td_db()->get_binlog_pmc()->get("reactions");
-  if (reactions.empty()) {
-    return reload_reactions();
-  }
-
-  LOG(INFO) << "Loaded available reactions of size " << reactions.size();
-  Reactions new_reactions;
-  new_reactions.are_being_reloaded_ = reactions_.are_being_reloaded_;
-  auto status = log_event_parse(new_reactions, reactions);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load available reactions: " << status;
-    return reload_reactions();
-  }
-  for (auto &reaction_type : new_reactions.reactions_) {
-    if (!reaction_type.is_valid()) {
-      LOG(ERROR) << "Loaded invalid reaction";
-      return reload_reactions();
-    }
-  }
-  reactions_ = std::move(new_reactions);
-
-  LOG(INFO) << "Successfully loaded " << reactions_.reactions_.size() << " available reactions";
-
-  update_active_reactions();
-}
-
-void ReactionManager::load_reaction_list(ReactionListType reaction_list_type) {
-  auto &reaction_list = get_reaction_list(reaction_list_type);
-  if (reaction_list.is_loaded_from_database_) {
-    return;
-  }
-  reaction_list.is_loaded_from_database_ = true;
-
-  LOG(INFO) << "Loading " << reaction_list_type;
-  string reactions_str = G()->td_db()->get_binlog_pmc()->get(get_reaction_list_type_database_key(reaction_list_type));
-  if (reactions_str.empty()) {
-    return reload_reaction_list(reaction_list_type, "load_reaction_list 1");
-  }
-
-  auto status = log_event_parse(reaction_list, reactions_str);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load " << reaction_list_type << ": " << status;
-    reaction_list = {};
-    return reload_reaction_list(reaction_list_type, "load_reaction_list 2");
-  }
-
-  LOG(INFO) << "Successfully loaded " << reaction_list.reaction_types_.size() << ' ' << reaction_list_type;
-}
-
-void ReactionManager::update_active_reactions() {
-  vector<ReactionType> active_reaction_types;
-  for (auto &reaction : reactions_.reactions_) {
-    if (reaction.is_active_) {
-      active_reaction_types.emplace_back(reaction.reaction_type_);
-    }
-  }
-  if (active_reaction_types == active_reaction_types_) {
-    return;
-  }
-  active_reaction_types_ = active_reaction_types;
-
-  save_active_reactions();
-
-  send_closure(G()->td(), &Td::send_update, get_update_active_emoji_reactions_object());
-
-  td_->messages_manager_->set_active_reactions(std::move(active_reaction_types));
-}
-
-void ReactionManager::on_get_available_reactions(
-    tl_object_ptr<telegram_api::messages_AvailableReactions> &&available_reactions_ptr) {
-  CHECK(reactions_.are_being_reloaded_);
-  reactions_.are_being_reloaded_ = false;
-
-  auto get_emoji_reaction_queries = std::move(pending_get_emoji_reaction_queries_);
-  pending_get_emoji_reaction_queries_.clear();
-  SCOPE_EXIT {
-    for (auto &query : get_emoji_reaction_queries) {
-      query.second.set_value(get_emoji_reaction_object(query.first));
-    }
-  };
-
-  if (available_reactions_ptr == nullptr) {
-    // failed to get available reactions
-    return;
-  }
-
-  int32 constructor_id = available_reactions_ptr->get_id();
-  if (constructor_id == telegram_api::messages_availableReactionsNotModified::ID) {
-    LOG(INFO) << "Available reactions are not modified";
-    return;
-  }
-
-  CHECK(constructor_id == telegram_api::messages_availableReactions::ID);
-  auto available_reactions = move_tl_object_as<telegram_api::messages_availableReactions>(available_reactions_ptr);
-  vector<Reaction> new_reactions;
-  for (auto &available_reaction : available_reactions->reactions_) {
-    Reaction reaction;
-    reaction.is_active_ = !available_reaction->inactive_;
-    reaction.is_premium_ = available_reaction->premium_;
-    reaction.reaction_type_ = ReactionType(std::move(available_reaction->reaction_));
-    reaction.title_ = std::move(available_reaction->title_);
-    reaction.static_icon_ =
-        td_->stickers_manager_
-            ->on_get_sticker_document(std::move(available_reaction->static_icon_), StickerFormat::Webp, "static_icon")
-            .second;
-    reaction.appear_animation_ = td_->stickers_manager_
-                                     ->on_get_sticker_document(std::move(available_reaction->appear_animation_),
-                                                               StickerFormat::Tgs, "appear_animation")
-                                     .second;
-    reaction.select_animation_ = td_->stickers_manager_
-                                     ->on_get_sticker_document(std::move(available_reaction->select_animation_),
-                                                               StickerFormat::Tgs, "select_animation")
-                                     .second;
-    reaction.activate_animation_ = td_->stickers_manager_
-                                       ->on_get_sticker_document(std::move(available_reaction->activate_animation_),
-                                                                 StickerFormat::Tgs, "activate_animation")
-                                       .second;
-    reaction.effect_animation_ = td_->stickers_manager_
-                                     ->on_get_sticker_document(std::move(available_reaction->effect_animation_),
-                                                               StickerFormat::Tgs, "effect_animation")
-                                     .second;
-    reaction.around_animation_ = td_->stickers_manager_
-                                     ->on_get_sticker_document(std::move(available_reaction->around_animation_),
-                                                               StickerFormat::Tgs, "around_animation")
-                                     .second;
-    reaction.center_animation_ = td_->stickers_manager_
-                                     ->on_get_sticker_document(std::move(available_reaction->center_icon_),
-                                                               StickerFormat::Tgs, "center_animation")
-                                     .second;
-
-    if (!reaction.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << reaction.reaction_type_;
-      continue;
-    }
-    if (reaction.is_premium_) {
-      LOG(ERROR) << "Receive premium " << reaction.reaction_type_;
-      continue;
-    }
-
-    new_reactions.push_back(std::move(reaction));
-  }
-  reactions_.reactions_ = std::move(new_reactions);
-  reactions_.hash_ = available_reactions->hash_;
-
-  save_reactions();
-
-  update_active_reactions();
-}
-
-void ReactionManager::on_get_reaction_list(ReactionListType reaction_list_type,
-                                           tl_object_ptr<telegram_api::messages_Reactions> &&reactions_ptr) {
-  auto &reaction_list = get_reaction_list(reaction_list_type);
-  CHECK(reaction_list.is_being_reloaded_);
-  reaction_list.is_being_reloaded_ = false;
-
-  if (reactions_ptr == nullptr) {
-    // failed to get reactions
-    return;
-  }
-
-  int32 constructor_id = reactions_ptr->get_id();
-  if (constructor_id == telegram_api::messages_reactionsNotModified::ID) {
-    LOG(INFO) << "List of " << reaction_list_type << " is not modified";
-    return;
-  }
-
-  CHECK(constructor_id == telegram_api::messages_reactions::ID);
-  auto reactions = move_tl_object_as<telegram_api::messages_reactions>(reactions_ptr);
-  auto new_reaction_types = ReactionType::get_reaction_types(reactions->reactions_);
-  if (new_reaction_types == reaction_list.reaction_types_ && reaction_list.hash_ == reactions->hash_) {
-    LOG(INFO) << "List of " << reaction_list_type << " is not modified";
-    return;
-  }
-  reaction_list.reaction_types_ = std::move(new_reaction_types);
-  reaction_list.hash_ = reactions->hash_;
-
-  auto expected_hash = get_reaction_types_hash(reaction_list.reaction_types_);
-  if (reaction_list.hash_ != expected_hash) {
-    LOG(ERROR) << "Receive hash " << reaction_list.hash_ << " instead of " << expected_hash << " for "
-               << reaction_list_type << reaction_list.reaction_types_;
-  }
-
-  save_reaction_list(reaction_list_type);
-}
-
-bool ReactionManager::is_active_reaction(const ReactionType &reaction_type) const {
-  return td::contains(active_reaction_types_, reaction_type);
-}
-
-void ReactionManager::set_default_reaction(ReactionType reaction_type, Promise<Unit> &&promise) {
-  if (reaction_type.is_empty()) {
-    return promise.set_error(Status::Error(400, "Default reaction must be non-empty"));
-  }
-  if (reaction_type.is_paid_reaction()) {
-    return promise.set_error(Status::Error(400, "Can't set paid reaction as default"));
-  }
-  if (!reaction_type.is_custom_reaction() && !is_active_reaction(reaction_type)) {
-    return promise.set_error(Status::Error(400, "Can't set inactive reaction as default"));
-  }
-
-  if (td_->option_manager_->get_option_string("default_reaction", "-") != reaction_type.get_string()) {
-    td_->option_manager_->set_option_string("default_reaction", reaction_type.get_string());
-    if (!td_->option_manager_->get_option_boolean("default_reaction_needs_sync")) {
-      td_->option_manager_->set_option_boolean("default_reaction_needs_sync", true);
-      send_set_default_reaction_query();
-    }
-  }
-  promise.set_value(Unit());
-}
-
-void ReactionManager::send_set_default_reaction_query() {
-  td_->create_handler<SetDefaultReactionQuery>()->send(
-      ReactionType(td_->option_manager_->get_option_string("default_reaction")));
-}
-
-void ReactionManager::load_all_saved_reaction_tags_from_database() {
-  if (are_all_tags_loaded_from_database_ || all_tags_.is_inited_ || !G()->use_message_database()) {
-    return;
-  }
-  are_all_tags_loaded_from_database_ = true;
-
-  auto value = G()->td_db()->get_sqlite_sync_pmc()->get(get_saved_messages_tags_database_key(SavedMessagesTopicId()));
-  if (!value.empty()) {
-    if (log_event_parse(all_tags_, value).is_ok()) {
-      send_update_saved_messages_tags(SavedMessagesTopicId(), &all_tags_, true);
-    } else {
-      LOG(ERROR) << "Failed to load all tags from database";
-      all_tags_ = {};
-    }
-  }
-  reload_saved_messages_tags(SavedMessagesTopicId(), Auto());
-}
-
-void ReactionManager::load_saved_reaction_tags_from_database(SavedMessagesTopicId saved_messages_topic_id,
-                                                             SavedReactionTags *tags) {
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  auto value = G()->td_db()->get_sqlite_sync_pmc()->get(get_saved_messages_tags_database_key(saved_messages_topic_id));
-  if (value.empty()) {
-    return;
-  }
-  if (log_event_parse(*tags, value).is_error()) {
-    LOG(ERROR) << "Failed to load all tags from database";
-    *tags = {};
-    return;
-  }
-
-  send_update_saved_messages_tags(saved_messages_topic_id, tags, true);
-  reload_saved_messages_tags(saved_messages_topic_id, Auto());
-}
-
-ReactionManager::SavedReactionTags *ReactionManager::get_saved_reaction_tags(
-    SavedMessagesTopicId saved_messages_topic_id) {
-  if (saved_messages_topic_id == SavedMessagesTopicId()) {
-    load_all_saved_reaction_tags_from_database();
-    return &all_tags_;
-  }
-  auto &tags = topic_tags_[saved_messages_topic_id];
-  if (tags == nullptr) {
-    tags = make_unique<SavedReactionTags>();
-    load_saved_reaction_tags_from_database(saved_messages_topic_id, tags.get());
-  }
-  return tags.get();
-}
-
-void ReactionManager::get_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id,
-                                              Promise<td_api::object_ptr<td_api::savedMessagesTags>> &&promise) {
-  if (!saved_messages_topic_id.is_valid() && saved_messages_topic_id != SavedMessagesTopicId()) {
-    return promise.set_error(Status::Error(400, "Invalid Saved Messages topic specified"));
-  }
-  const auto *tags = get_saved_reaction_tags(saved_messages_topic_id);
-  if (tags->is_inited_) {
-    return promise.set_value(tags->get_saved_messages_tags_object());
-  }
-  reload_saved_messages_tags(saved_messages_topic_id, std::move(promise));
-}
-
-void ReactionManager::reload_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id,
-                                                 Promise<td_api::object_ptr<td_api::savedMessagesTags>> &&promise) {
-  auto &promises = saved_messages_topic_id == SavedMessagesTopicId()
-                       ? pending_get_all_saved_reaction_tags_queries_
-                       : pending_get_topic_saved_reaction_tags_queries_[saved_messages_topic_id];
-  promises.push_back(std::move(promise));
-  if (promises.size() != 1) {
-    return;
-  }
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), saved_messages_topic_id](
-                                 Result<telegram_api::object_ptr<telegram_api::messages_SavedReactionTags>> r_tags) {
-        send_closure(actor_id, &ReactionManager::on_get_saved_messages_tags, saved_messages_topic_id,
-                     std::move(r_tags));
-      });
-  const auto *tags = get_saved_reaction_tags(saved_messages_topic_id);
-  td_->create_handler<GetSavedReactionTagsQuery>(std::move(query_promise))->send(saved_messages_topic_id, tags->hash_);
-}
-
-void ReactionManager::on_get_saved_messages_tags(
-    SavedMessagesTopicId saved_messages_topic_id,
-    Result<telegram_api::object_ptr<telegram_api::messages_SavedReactionTags>> &&r_tags) {
-  G()->ignore_result_if_closing(r_tags);
-  vector<Promise<td_api::object_ptr<td_api::savedMessagesTags>>> promises;
-  if (saved_messages_topic_id == SavedMessagesTopicId()) {
-    promises = std::move(pending_get_all_saved_reaction_tags_queries_);
-    reset_to_empty(pending_get_all_saved_reaction_tags_queries_);
-  } else {
-    auto it = pending_get_topic_saved_reaction_tags_queries_.find(saved_messages_topic_id);
-    CHECK(it != pending_get_topic_saved_reaction_tags_queries_.end());
-    promises = std::move(it->second);
-    pending_get_topic_saved_reaction_tags_queries_.erase(it);
-  }
-  CHECK(!promises.empty());
-
-  if (r_tags.is_error()) {
-    return fail_promises(promises, r_tags.move_as_error());
-  }
-
-  auto tags_ptr = r_tags.move_as_ok();
-  bool need_send_update = false;
-  auto *reaction_tags = get_saved_reaction_tags(saved_messages_topic_id);
-  switch (tags_ptr->get_id()) {
-    case telegram_api::messages_savedReactionTagsNotModified::ID:
-      if (!reaction_tags->is_inited_) {
-        LOG(ERROR) << "Receive messages.savedReactionTagsNotModified for non-inited tags";
-      }
-      break;
-    case telegram_api::messages_savedReactionTags::ID: {
-      auto tags = telegram_api::move_object_as<telegram_api::messages_savedReactionTags>(tags_ptr);
-      vector<SavedReactionTag> saved_reaction_tags;
-      for (auto &tag : tags->tags_) {
-        saved_reaction_tags.emplace_back(std::move(tag));
-        if (!saved_reaction_tags.back().is_valid()) {
-          LOG(ERROR) << "Receive " << saved_reaction_tags.back();
-          saved_reaction_tags.pop_back();
-        }
-      }
-      std::sort(saved_reaction_tags.begin(), saved_reaction_tags.end());
-      reaction_tags->hash_ = tags->hash_;
-      if (saved_reaction_tags != reaction_tags->tags_) {
-        reaction_tags->tags_ = std::move(saved_reaction_tags);
-        need_send_update = true;
-      }
-      if (reaction_tags->hash_ != reaction_tags->calc_hash()) {
-        LOG(ERROR) << "Receive unexpected Saved Messages tag hash";
-      }
-      reaction_tags->is_inited_ = true;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  if (need_send_update) {
-    send_update_saved_messages_tags(saved_messages_topic_id, reaction_tags);
-  }
-  for (auto &promise : promises) {
-    if (promise) {
-      promise.set_value(reaction_tags->get_saved_messages_tags_object());
-    }
-  }
-}
-
-string ReactionManager::get_saved_messages_tags_database_key(SavedMessagesTopicId saved_messages_topic_id) {
-  return PSTRING() << "saved_messages_tags" << saved_messages_topic_id.get_unique_id();
-}
-
-td_api::object_ptr<td_api::updateSavedMessagesTags> ReactionManager::get_update_saved_messages_tags_object(
-    SavedMessagesTopicId saved_messages_topic_id, const SavedReactionTags *tags) const {
-  CHECK(tags != nullptr);
-  return td_api::make_object<td_api::updateSavedMessagesTags>(
-      td_->saved_messages_manager_->get_saved_messages_topic_id_object(saved_messages_topic_id),
-      tags->get_saved_messages_tags_object());
-}
-
-void ReactionManager::send_update_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id,
-                                                      const SavedReactionTags *tags, bool from_database) {
-  send_closure(G()->td(), &Td::send_update, get_update_saved_messages_tags_object(saved_messages_topic_id, tags));
-  if (!from_database && G()->use_message_database()) {
-    G()->td_db()->get_sqlite_pmc()->set(get_saved_messages_tags_database_key(saved_messages_topic_id),
-                                        log_event_store(*tags).as_slice().str(), Promise<Unit>());
-  }
-}
-
-void ReactionManager::on_update_saved_reaction_tags(Promise<Unit> &&promise) {
-  reload_saved_messages_tags(
-      SavedMessagesTopicId(),
-      PromiseCreator::lambda(
-          [promise = std::move(promise)](Result<td_api::object_ptr<td_api::savedMessagesTags>> result) mutable {
-            promise.set_value(Unit());
-          }));
-}
-
-void ReactionManager::update_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id,
-                                                 const vector<ReactionType> &old_tags,
-                                                 const vector<ReactionType> &new_tags) {
-  if (old_tags == new_tags) {
-    return;
-  }
-  auto *all_tags = get_saved_reaction_tags(SavedMessagesTopicId());
-  if (all_tags->update_saved_messages_tags(old_tags, new_tags)) {
-    send_update_saved_messages_tags(SavedMessagesTopicId(), all_tags);
-  }
-  if (saved_messages_topic_id != SavedMessagesTopicId() && saved_messages_topic_id.get_input_peer(td_) != nullptr) {
-    auto *tags = get_saved_reaction_tags(saved_messages_topic_id);
-    if (tags->update_saved_messages_tags(old_tags, new_tags)) {
-      send_update_saved_messages_tags(saved_messages_topic_id, tags);
-    }
-  }
-}
-
-void ReactionManager::set_saved_messages_tag_title(ReactionType reaction_type, string title, Promise<Unit> &&promise) {
-  if (reaction_type.is_empty()) {
-    return promise.set_error(Status::Error(400, "Reaction type must be non-empty"));
-  }
-  if (reaction_type.is_paid_reaction()) {
-    return promise.set_error(Status::Error(400, "Invalid reaction specified"));
-  }
-  title = clean_name(title, MAX_TAG_TITLE_LENGTH);
-
-  auto *all_tags = get_saved_reaction_tags(SavedMessagesTopicId());
-  if (all_tags->set_tag_title(reaction_type, title)) {
-    send_update_saved_messages_tags(SavedMessagesTopicId(), all_tags);
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_ok()) {
-          send_closure(actor_id, &ReactionManager::on_update_saved_reaction_tags, std::move(promise));
-        } else {
-          promise.set_error(result.move_as_error());
-        }
-      });
-  td_->create_handler<UpdateSavedReactionTagQuery>(std::move(query_promise))->send(reaction_type, title);
-}
-
-td_api::object_ptr<td_api::messageEffect> ReactionManager::get_message_effect_object(const Effect &effect) const {
-  auto type = [&]() -> td_api::object_ptr<td_api::MessageEffectType> {
-    if (effect.is_sticker()) {
-      return td_api::make_object<td_api::messageEffectTypePremiumSticker>(
-          td_->stickers_manager_->get_sticker_object(effect.effect_sticker_id_));
-    }
-    return td_api::make_object<td_api::messageEffectTypeEmojiReaction>(
-        td_->stickers_manager_->get_sticker_object(effect.effect_sticker_id_),
-        td_->stickers_manager_->get_sticker_object(effect.effect_animation_id_));
-  }();
-  return td_api::make_object<td_api::messageEffect>(effect.id_.get(),
-                                                    td_->stickers_manager_->get_sticker_object(effect.static_icon_id_),
-                                                    effect.emoji_, effect.is_premium_, std::move(type));
-}
-
-td_api::object_ptr<td_api::messageEffect> ReactionManager::get_message_effect_object(MessageEffectId effect_id) const {
-  for (auto &effect : message_effects_.effects_) {
-    if (effect.id_ == effect_id) {
-      return get_message_effect_object(effect);
-    }
-  }
-  return nullptr;
-}
-
-td_api::object_ptr<td_api::updateAvailableMessageEffects> ReactionManager::get_update_available_message_effects_object()
-    const {
-  auto get_raw_effect_ids = [](const vector<MessageEffectId> &message_effect_ids) {
-    return transform(message_effect_ids, [](MessageEffectId effect_id) { return effect_id.get(); });
-  };
-  return td_api::make_object<td_api::updateAvailableMessageEffects>(
-      get_raw_effect_ids(active_message_effects_.reaction_effects_),
-      get_raw_effect_ids(active_message_effects_.sticker_effects_));
-}
-
-void ReactionManager::reload_message_effects() {
-  if (G()->close_flag() || message_effects_.are_being_reloaded_) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  message_effects_.are_being_reloaded_ = true;
-  load_message_effects();  // must be after are_being_reloaded_ is set to true to avoid recursion
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](
-          Result<telegram_api::object_ptr<telegram_api::messages_AvailableEffects>> r_effects) mutable {
-        send_closure(actor_id, &ReactionManager::on_get_message_effects, std::move(r_effects));
-      });
-  td_->create_handler<GetMessageAvailableEffectsQuery>(std::move(promise))->send(message_effects_.hash_);
-}
-
-void ReactionManager::load_message_effects() {
-  if (are_message_effects_loaded_from_database_) {
-    return;
-  }
-  are_message_effects_loaded_from_database_ = true;
-
-  string message_effects = G()->td_db()->get_binlog_pmc()->get("message_effects");
-  if (message_effects.empty()) {
-    return reload_message_effects();
-  }
-  LOG(INFO) << "Loaded message effects of size " << message_effects.size();
-
-  Effects new_message_effects;
-  new_message_effects.are_being_reloaded_ = message_effects_.are_being_reloaded_;
-  auto status = log_event_parse(new_message_effects, message_effects);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load message effects: " << status;
-    return reload_message_effects();
-  }
-  for (auto &effect : new_message_effects.effects_) {
-    if (!effect.is_valid()) {
-      LOG(ERROR) << "Loaded invalid message effect";
-      return reload_message_effects();
-    }
-  }
-  message_effects_ = std::move(new_message_effects);
-
-  LOG(INFO) << "Successfully loaded " << message_effects_.effects_.size() << " message effects";
-
-  update_active_message_effects();
-}
-
-void ReactionManager::save_message_effects() {
-  LOG(INFO) << "Save " << message_effects_.effects_.size() << " message effects";
-  are_message_effects_loaded_from_database_ = true;
-  G()->td_db()->get_binlog_pmc()->set("message_effects", log_event_store(message_effects_).as_slice().str());
-}
-
-void ReactionManager::on_get_message_effects(
-    Result<telegram_api::object_ptr<telegram_api::messages_AvailableEffects>> r_effects) {
-  G()->ignore_result_if_closing(r_effects);
-  CHECK(message_effects_.are_being_reloaded_);
-  message_effects_.are_being_reloaded_ = false;
-
-  auto get_message_effect_queries = std::move(pending_get_message_effect_queries_);
-  pending_get_message_effect_queries_.clear();
-  SCOPE_EXIT {
-    for (auto &query : get_message_effect_queries) {
-      query.second.set_value(get_message_effect_object(query.first));
-    }
-  };
-
-  if (r_effects.is_error()) {
-    return;
-  }
-  auto message_effects = r_effects.move_as_ok();
-
-  switch (message_effects->get_id()) {
-    case telegram_api::messages_availableEffectsNotModified::ID:
-      break;
-    case telegram_api::messages_availableEffects::ID: {
-      auto effects = telegram_api::move_object_as<telegram_api::messages_availableEffects>(message_effects);
-      FlatHashMap<int64, FileId> stickers;
-      for (auto &document : effects->documents_) {
-        auto sticker = td_->stickers_manager_->on_get_sticker_document(std::move(document), StickerFormat::Unknown,
-                                                                       "on_get_message_effects");
-        if (sticker.first != 0 && sticker.second.is_valid()) {
-          stickers.emplace(sticker.first, sticker.second);
-        } else {
-          LOG(ERROR) << "Receive " << sticker.first << ' ' << sticker.second;
-        }
-      }
-      vector<Effect> new_effects;
-      bool was_sticker = false;
-      bool have_invalid_order = false;
-      for (const auto &available_effect : effects->effects_) {
-        Effect effect;
-        effect.id_ = MessageEffectId(available_effect->id_);
-        effect.emoji_ = std::move(available_effect->emoticon_);
-        effect.is_premium_ = available_effect->premium_required_;
-        if (available_effect->static_icon_id_ != 0) {
-          auto it = stickers.find(available_effect->static_icon_id_);
-          if (it == stickers.end()) {
-            LOG(ERROR) << "Can't find " << available_effect->static_icon_id_;
-          } else {
-            auto sticker_id = it->second;
-            if (td_->stickers_manager_->get_sticker_format(sticker_id) != StickerFormat::Webp) {
-              LOG(ERROR) << "Receive static sticker in wrong format";
-            } else {
-              effect.static_icon_id_ = sticker_id;
-            }
-          }
-        }
-        if (available_effect->effect_sticker_id_ != 0) {
-          auto it = stickers.find(available_effect->effect_sticker_id_);
-          if (it == stickers.end()) {
-            LOG(ERROR) << "Can't find " << available_effect->effect_sticker_id_;
-          } else {
-            auto sticker_id = it->second;
-            if (td_->stickers_manager_->get_sticker_format(sticker_id) != StickerFormat::Tgs) {
-              LOG(ERROR) << "Receive effect sticker in wrong format";
-            } else {
-              effect.effect_sticker_id_ = sticker_id;
-            }
-          }
-        }
-        if (available_effect->effect_animation_id_ != 0) {
-          auto it = stickers.find(available_effect->effect_animation_id_);
-          if (it == stickers.end()) {
-            LOG(ERROR) << "Can't find " << available_effect->effect_animation_id_;
-          } else {
-            auto sticker_id = it->second;
-            if (td_->stickers_manager_->get_sticker_format(sticker_id) != StickerFormat::Tgs) {
-              LOG(ERROR) << "Receive effect animation in wrong format";
-            } else {
-              effect.effect_animation_id_ = sticker_id;
-            }
-          }
-        }
-        if (effect.is_valid()) {
-          if (was_sticker && !effect.is_sticker()) {
-            have_invalid_order = true;
-          }
-          new_effects.push_back(std::move(effect));
-        } else {
-          LOG(ERROR) << "Receive " << to_string(available_effect);
-        }
-      }
-      if (have_invalid_order) {
-        LOG(ERROR) << "Have invalid effect order";
-        std::stable_sort(new_effects.begin(), new_effects.end(),
-                         [](const Effect &lhs, const Effect &rhs) { return !lhs.is_sticker() && rhs.is_sticker(); });
-      }
-
-      message_effects_.effects_ = std::move(new_effects);
-      message_effects_.hash_ = effects->hash_;
-
-      save_message_effects();
-
-      update_active_message_effects();
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void ReactionManager::save_active_message_effects() {
-  LOG(INFO) << "Save " << active_message_effects_.reaction_effects_.size() << " + "
-            << active_message_effects_.sticker_effects_.size() << " available message effects";
-  G()->td_db()->get_binlog_pmc()->set("active_message_effects",
-                                      log_event_store(active_message_effects_).as_slice().str());
-}
-
-void ReactionManager::load_active_message_effects() {
-  LOG(INFO) << "Loading active message effects";
-  string active_message_effects = G()->td_db()->get_binlog_pmc()->get("active_message_effects");
-  if (active_message_effects.empty()) {
-    return reload_message_effects();
-  }
-
-  auto status = log_event_parse(active_message_effects_, active_message_effects);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load active message effects: " << status;
-    active_message_effects_ = {};
-    return reload_message_effects();
-  }
-
-  LOG(INFO) << "Successfully loaded " << active_message_effects_.reaction_effects_.size() << " + "
-            << active_message_effects_.sticker_effects_.size() << " active message effects";
-
-  send_closure(G()->td(), &Td::send_update, get_update_available_message_effects_object());
-}
-
-void ReactionManager::update_active_message_effects() {
-  ActiveEffects active_message_effects;
-  for (auto &effect : message_effects_.effects_) {
-    if (effect.is_sticker()) {
-      active_message_effects.sticker_effects_.push_back(effect.id_);
-    } else {
-      active_message_effects.reaction_effects_.push_back(effect.id_);
-    }
-  }
-  if (active_message_effects.reaction_effects_ == active_message_effects_.reaction_effects_ &&
-      active_message_effects.sticker_effects_ == active_message_effects_.sticker_effects_) {
-    return;
-  }
-  active_message_effects_ = std::move(active_message_effects);
-
-  save_active_message_effects();
-
-  send_closure(G()->td(), &Td::send_update, get_update_available_message_effects_object());
-}
-
-void ReactionManager::get_message_effect(MessageEffectId effect_id,
-                                         Promise<td_api::object_ptr<td_api::messageEffect>> &&promise) {
-  load_message_effects();
-  if (message_effects_.effects_.empty() && message_effects_.are_being_reloaded_) {
-    pending_get_message_effect_queries_.emplace_back(effect_id, std::move(promise));
-    return;
-  }
-  promise.set_value(get_message_effect_object(effect_id));
-}
-
-void ReactionManager::send_update_default_paid_reaction_type() const {
-  send_closure(G()->td(), &Td::send_update, default_paid_reaction_type_.get_update_default_paid_reaction_type(td_));
-}
-
-void ReactionManager::on_update_default_paid_reaction_type(PaidReactionType type) {
-  if (type.is_valid() && type != default_paid_reaction_type_) {
-    default_paid_reaction_type_ = type;
-    save_default_paid_reaction_type();
-    send_update_default_paid_reaction_type();
-  }
-}
-
-void ReactionManager::load_default_paid_reaction_type() {
-  string type = G()->td_db()->get_binlog_pmc()->get("default_paid_reaction_type");
-  if (!type.empty()) {
-    auto status = log_event_parse(default_paid_reaction_type_, type);
-    if (status.is_error()) {
-      LOG(ERROR) << "Can't load default paid reaction type: " << status;
-      default_paid_reaction_type_ = {};
-      save_default_paid_reaction_type();
-    } else {
-      Dependencies dependencies;
-      default_paid_reaction_type_.add_dependencies(dependencies);
-      if (!default_paid_reaction_type_.is_valid() ||
-          !dependencies.resolve_force(td_, "load_default_paid_reaction_type")) {
-        default_paid_reaction_type_ = {};
-        save_default_paid_reaction_type();
-      }
-    }
-  } else if (td_->option_manager_->have_option("is_paid_reaction_anonymous")) {
-    auto is_anonymous = td_->option_manager_->get_option_boolean("is_paid_reaction_anonymous");
-    default_paid_reaction_type_ = PaidReactionType::legacy(is_anonymous);
-    save_default_paid_reaction_type();
-    td_->option_manager_->set_option_empty("is_paid_reaction_anonymous");
-  }
-  send_update_default_paid_reaction_type();
-}
-
-void ReactionManager::save_default_paid_reaction_type() const {
-  LOG(INFO) << "Save " << default_paid_reaction_type_;
-  G()->td_db()->get_binlog_pmc()->set("default_paid_reaction_type",
-                                      log_event_store(default_paid_reaction_type_).as_slice().str());
-}
-
-PaidReactionType ReactionManager::get_default_paid_reaction_type() const {
-  return default_paid_reaction_type_;
-}
-
-void ReactionManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (!active_reaction_types_.empty()) {
-    updates.push_back(get_update_active_emoji_reactions_object());
-  }
-  if (all_tags_.is_inited_) {
-    updates.push_back(get_update_saved_messages_tags_object(SavedMessagesTopicId(), &all_tags_));
-  }
-  for (auto &it : topic_tags_) {
-    updates.push_back(get_update_saved_messages_tags_object(it.first, it.second.get()));
-  }
-  if (!active_message_effects_.is_empty()) {
-    updates.push_back(get_update_available_message_effects_object());
-  }
-  updates.push_back(default_paid_reaction_type_.get_update_default_paid_reaction_type(td_));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionManager.h b/third-party/td/td/td/telegram/ReactionManager.h
deleted file mode 100644
index 6fac322227..0000000000
--- a/third-party/td/td/td/telegram/ReactionManager.h
+++ /dev/null
@@ -1,352 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChatReactions.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/MessageEffectId.h"
-#include "td/telegram/PaidReactionType.h"
-#include "td/telegram/ReactionListType.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/ReactionUnavailabilityReason.h"
-#include "td/telegram/SavedMessagesTopicId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class ReactionManager final : public Actor {
- public:
-  ReactionManager(Td *td, ActorShared<> parent);
-  ReactionManager(const ReactionManager &) = delete;
-  ReactionManager &operator=(const ReactionManager &) = delete;
-  ReactionManager(ReactionManager &&) = delete;
-  ReactionManager &operator=(ReactionManager &&) = delete;
-  ~ReactionManager() final;
-
-  static constexpr size_t MAX_RECENT_REACTIONS = 100;  // some reasonable value
-
-  void init();
-
-  bool is_active_reaction(const ReactionType &reaction_type) const;
-
-  void get_emoji_reaction(const string &emoji, Promise<td_api::object_ptr<td_api::emojiReaction>> &&promise);
-
-  td_api::object_ptr<td_api::availableReactions> get_sorted_available_reactions(
-      ChatReactions available_reactions, ChatReactions active_reactions, int32 row_size, bool is_tag,
-      ReactionUnavailabilityReason unavailability_reason);
-
-  td_api::object_ptr<td_api::availableReactions> get_available_reactions(int32 row_size);
-
-  void add_recent_reaction(const ReactionType &reaction_type);
-
-  void clear_recent_reactions(Promise<Unit> &&promise);
-
-  vector<ReactionType> get_default_tag_reactions();
-
-  void reload_reactions();
-
-  void reload_reaction_list(ReactionListType reaction_list_type, const char *source);
-
-  void on_get_reaction_list(ReactionListType reaction_list_type,
-                            tl_object_ptr<telegram_api::messages_Reactions> &&reactions_ptr);
-
-  void on_get_available_reactions(tl_object_ptr<telegram_api::messages_AvailableReactions> &&available_reactions_ptr);
-
-  void set_default_reaction(ReactionType reaction_type, Promise<Unit> &&promise);
-
-  void send_set_default_reaction_query();
-
-  void get_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id,
-                               Promise<td_api::object_ptr<td_api::savedMessagesTags>> &&promise);
-
-  void on_update_saved_reaction_tags(Promise<Unit> &&promise);
-
-  void update_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id, const vector<ReactionType> &old_tags,
-                                  const vector<ReactionType> &new_tags);
-
-  void set_saved_messages_tag_title(ReactionType reaction_type, string title, Promise<Unit> &&promise);
-
-  void reload_message_effects();
-
-  void get_message_effect(MessageEffectId effect_id, Promise<td_api::object_ptr<td_api::messageEffect>> &&promise);
-
-  void on_update_default_paid_reaction_type(PaidReactionType type);
-
-  PaidReactionType get_default_paid_reaction_type() const;
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  struct Reaction {
-    ReactionType reaction_type_;
-    string title_;
-    bool is_active_ = false;
-    bool is_premium_ = false;
-    FileId static_icon_;
-    FileId appear_animation_;
-    FileId select_animation_;
-    FileId activate_animation_;
-    FileId effect_animation_;
-    FileId around_animation_;
-    FileId center_animation_;
-
-    bool is_valid() const {
-      return static_icon_.is_valid() && appear_animation_.is_valid() && select_animation_.is_valid() &&
-             activate_animation_.is_valid() && effect_animation_.is_valid() && !reaction_type_.is_empty();
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct Reactions {
-    int32 hash_ = 0;
-    bool are_being_reloaded_ = false;
-    vector<Reaction> reactions_;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct ReactionList {
-    int64 hash_ = 0;
-    bool is_loaded_from_database_ = false;
-    bool is_being_reloaded_ = false;
-    vector<ReactionType> reaction_types_;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  static constexpr int32 MAX_TAG_TITLE_LENGTH = 12;
-
-  struct SavedReactionTag {
-    ReactionType reaction_type_;
-    uint64 hash_ = 0;
-    string title_;
-    int32 count_ = 0;
-
-    SavedReactionTag() = default;
-
-    explicit SavedReactionTag(telegram_api::object_ptr<telegram_api::savedReactionTag> &&tag);
-
-    SavedReactionTag(const ReactionType &reaction_type, const string &title, int32 count);
-
-    bool is_valid() const {
-      return !reaction_type_.is_empty() && count_ >= 0 && (count_ > 0 || !title_.empty());
-    }
-
-    td_api::object_ptr<td_api::savedMessagesTag> get_saved_messages_tag_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  friend bool operator==(const SavedReactionTag &lhs, const SavedReactionTag &rhs);
-
-  friend bool operator!=(const SavedReactionTag &lhs, const SavedReactionTag &rhs);
-
-  friend bool operator<(const SavedReactionTag &lhs, const SavedReactionTag &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const SavedReactionTag &saved_reaction_tag);
-
-  struct SavedReactionTags {
-    vector<SavedReactionTag> tags_;
-    int64 hash_ = 0;
-    bool is_inited_ = false;
-
-    td_api::object_ptr<td_api::savedMessagesTags> get_saved_messages_tags_object() const;
-
-    bool update_saved_messages_tags(const vector<ReactionType> &old_tags, const vector<ReactionType> &new_tags);
-
-    bool set_tag_title(const ReactionType &reaction_type, const string &title);
-
-    int64 calc_hash() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct Effect {
-    MessageEffectId id_;
-    string emoji_;
-    FileId static_icon_id_;
-    FileId effect_sticker_id_;
-    FileId effect_animation_id_;
-    bool is_premium_ = false;
-
-    bool is_valid() const {
-      return id_.is_valid() && effect_sticker_id_.is_valid();
-    }
-
-    bool is_sticker() const {
-      return effect_animation_id_ == FileId();
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct Effects {
-    int32 hash_ = 0;
-    bool are_being_reloaded_ = false;
-    vector<Effect> effects_;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct ActiveEffects {
-    vector<MessageEffectId> reaction_effects_;
-    vector<MessageEffectId> sticker_effects_;
-
-    bool is_empty() const {
-      return reaction_effects_.empty() && sticker_effects_.empty();
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  td_api::object_ptr<td_api::emojiReaction> get_emoji_reaction_object(const string &emoji) const;
-
-  ReactionList &get_reaction_list(ReactionListType reaction_list_type);
-
-  void start_up() final;
-
-  void tear_down() final;
-
-  void save_active_reactions();
-
-  void save_reactions();
-
-  void save_reaction_list(ReactionListType reaction_list_type);
-
-  void load_active_reactions();
-
-  void load_reactions();
-
-  void load_reaction_list(ReactionListType reaction_list_type);
-
-  void update_active_reactions();
-
-  td_api::object_ptr<td_api::updateActiveEmojiReactions> get_update_active_emoji_reactions_object() const;
-
-  SavedReactionTags *get_saved_reaction_tags(SavedMessagesTopicId saved_messages_topic_id);
-
-  void reload_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id,
-                                  Promise<td_api::object_ptr<td_api::savedMessagesTags>> &&promise);
-
-  void on_get_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id,
-                                  Result<telegram_api::object_ptr<telegram_api::messages_SavedReactionTags>> &&r_tags);
-
-  string get_saved_messages_tags_database_key(SavedMessagesTopicId saved_messages_topic_id);
-
-  void load_all_saved_reaction_tags_from_database();
-
-  void load_saved_reaction_tags_from_database(SavedMessagesTopicId saved_messages_topic_id, SavedReactionTags *tags);
-
-  td_api::object_ptr<td_api::updateSavedMessagesTags> get_update_saved_messages_tags_object(
-      SavedMessagesTopicId saved_messages_topic_id, const SavedReactionTags *tags) const;
-
-  void send_update_saved_messages_tags(SavedMessagesTopicId saved_messages_topic_id, const SavedReactionTags *tags,
-                                       bool from_database = false);
-
-  td_api::object_ptr<td_api::messageEffect> get_message_effect_object(const Effect &effect) const;
-
-  td_api::object_ptr<td_api::messageEffect> get_message_effect_object(MessageEffectId effect_id) const;
-
-  td_api::object_ptr<td_api::updateAvailableMessageEffects> get_update_available_message_effects_object() const;
-
-  void load_message_effects();
-
-  void save_message_effects();
-
-  void on_get_message_effects(Result<telegram_api::object_ptr<telegram_api::messages_AvailableEffects>> r_effects);
-
-  void save_active_message_effects();
-
-  void load_active_message_effects();
-
-  void update_active_message_effects();
-
-  void send_update_default_paid_reaction_type() const;
-
-  void load_default_paid_reaction_type();
-
-  void save_default_paid_reaction_type() const;
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  bool is_inited_ = false;
-  bool are_reactions_loaded_from_database_ = false;
-  bool are_all_tags_loaded_from_database_ = false;
-  bool are_message_effects_loaded_from_database_ = false;
-
-  vector<std::pair<string, Promise<td_api::object_ptr<td_api::emojiReaction>>>> pending_get_emoji_reaction_queries_;
-
-  Reactions reactions_;
-  vector<ReactionType> active_reaction_types_;
-
-  ReactionList reaction_lists_[MAX_REACTION_LIST_TYPE];
-
-  SavedReactionTags all_tags_;
-  FlatHashMap<SavedMessagesTopicId, unique_ptr<SavedReactionTags>, SavedMessagesTopicIdHash> topic_tags_;
-
-  vector<Promise<td_api::object_ptr<td_api::savedMessagesTags>>> pending_get_all_saved_reaction_tags_queries_;
-  FlatHashMap<SavedMessagesTopicId, vector<Promise<td_api::object_ptr<td_api::savedMessagesTags>>>,
-              SavedMessagesTopicIdHash>
-      pending_get_topic_saved_reaction_tags_queries_;
-
-  Effects message_effects_;
-  ActiveEffects active_message_effects_;
-
-  vector<std::pair<MessageEffectId, Promise<td_api::object_ptr<td_api::messageEffect>>>>
-      pending_get_message_effect_queries_;
-
-  PaidReactionType default_paid_reaction_type_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionManager.hpp b/third-party/td/td/td/telegram/ReactionManager.hpp
deleted file mode 100644
index 595c9d737b..0000000000
--- a/third-party/td/td/td/telegram/ReactionManager.hpp
+++ /dev/null
@@ -1,220 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReactionManager.h"
-
-#include "td/telegram/ReactionType.hpp"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/Td.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ReactionManager::Reaction::store(StorerT &storer) const {
-  StickersManager *stickers_manager = storer.context()->td().get_actor_unsafe()->stickers_manager_.get();
-  bool has_around_animation = !around_animation_.empty();
-  bool has_center_animation = !center_animation_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_active_);
-  STORE_FLAG(has_around_animation);
-  STORE_FLAG(has_center_animation);
-  STORE_FLAG(is_premium_);
-  END_STORE_FLAGS();
-  td::store(reaction_type_, storer);
-  td::store(title_, storer);
-  stickers_manager->store_sticker(static_icon_, false, storer, "Reaction");
-  stickers_manager->store_sticker(appear_animation_, false, storer, "Reaction");
-  stickers_manager->store_sticker(select_animation_, false, storer, "Reaction");
-  stickers_manager->store_sticker(activate_animation_, false, storer, "Reaction");
-  stickers_manager->store_sticker(effect_animation_, false, storer, "Reaction");
-  if (has_around_animation) {
-    stickers_manager->store_sticker(around_animation_, false, storer, "Reaction");
-  }
-  if (has_center_animation) {
-    stickers_manager->store_sticker(center_animation_, false, storer, "Reaction");
-  }
-}
-
-template <class ParserT>
-void ReactionManager::Reaction::parse(ParserT &parser) {
-  StickersManager *stickers_manager = parser.context()->td().get_actor_unsafe()->stickers_manager_.get();
-  bool has_around_animation;
-  bool has_center_animation;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_active_);
-  PARSE_FLAG(has_around_animation);
-  PARSE_FLAG(has_center_animation);
-  PARSE_FLAG(is_premium_);
-  END_PARSE_FLAGS();
-  td::parse(reaction_type_, parser);
-  td::parse(title_, parser);
-  static_icon_ = stickers_manager->parse_sticker(false, parser);
-  appear_animation_ = stickers_manager->parse_sticker(false, parser);
-  select_animation_ = stickers_manager->parse_sticker(false, parser);
-  activate_animation_ = stickers_manager->parse_sticker(false, parser);
-  effect_animation_ = stickers_manager->parse_sticker(false, parser);
-  if (has_around_animation) {
-    around_animation_ = stickers_manager->parse_sticker(false, parser);
-  }
-  if (has_center_animation) {
-    center_animation_ = stickers_manager->parse_sticker(false, parser);
-  }
-
-  is_premium_ = false;
-}
-
-template <class StorerT>
-void ReactionManager::Reactions::store(StorerT &storer) const {
-  bool has_reactions = !reactions_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_reactions);
-  END_STORE_FLAGS();
-  if (has_reactions) {
-    td::store(reactions_, storer);
-    td::store(hash_, storer);
-  }
-}
-
-template <class ParserT>
-void ReactionManager::Reactions::parse(ParserT &parser) {
-  bool has_reactions;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_reactions);
-  END_PARSE_FLAGS();
-  if (has_reactions) {
-    td::parse(reactions_, parser);
-    td::parse(hash_, parser);
-  }
-}
-
-template <class StorerT>
-void ReactionManager::ReactionList::store(StorerT &storer) const {
-  bool has_reaction_types = !reaction_types_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_reaction_types);
-  END_STORE_FLAGS();
-  if (has_reaction_types) {
-    td::store(reaction_types_, storer);
-    td::store(hash_, storer);
-  }
-}
-
-template <class ParserT>
-void ReactionManager::ReactionList::parse(ParserT &parser) {
-  bool has_reaction_types;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_reaction_types);
-  END_PARSE_FLAGS();
-  if (has_reaction_types) {
-    td::parse(reaction_types_, parser);
-    td::parse(hash_, parser);
-  }
-}
-
-template <class StorerT>
-void ReactionManager::Effect::store(StorerT &storer) const {
-  StickersManager *stickers_manager = storer.context()->td().get_actor_unsafe()->stickers_manager_.get();
-  bool has_static_icon = static_icon_id_.is_valid();
-  bool has_effect_animation = effect_animation_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_premium_);
-  STORE_FLAG(has_static_icon);
-  STORE_FLAG(has_effect_animation);
-  END_STORE_FLAGS();
-  td::store(id_, storer);
-  td::store(emoji_, storer);
-  if (has_static_icon) {
-    stickers_manager->store_sticker(static_icon_id_, false, storer, "Effect");
-  }
-  stickers_manager->store_sticker(effect_sticker_id_, false, storer, "Effect");
-  if (has_effect_animation) {
-    stickers_manager->store_sticker(effect_animation_id_, false, storer, "Effect");
-  }
-}
-
-template <class ParserT>
-void ReactionManager::Effect::parse(ParserT &parser) {
-  StickersManager *stickers_manager = parser.context()->td().get_actor_unsafe()->stickers_manager_.get();
-  bool has_static_icon;
-  bool has_effect_animation;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_premium_);
-  PARSE_FLAG(has_static_icon);
-  PARSE_FLAG(has_effect_animation);
-  END_PARSE_FLAGS();
-  td::parse(id_, parser);
-  td::parse(emoji_, parser);
-  if (has_static_icon) {
-    static_icon_id_ = stickers_manager->parse_sticker(false, parser);
-  }
-  effect_sticker_id_ = stickers_manager->parse_sticker(false, parser);
-  if (has_effect_animation) {
-    effect_animation_id_ = stickers_manager->parse_sticker(false, parser);
-  }
-}
-
-template <class StorerT>
-void ReactionManager::Effects::store(StorerT &storer) const {
-  bool has_effects = !effects_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_effects);
-  END_STORE_FLAGS();
-  if (has_effects) {
-    td::store(effects_, storer);
-    td::store(hash_, storer);
-  }
-}
-
-template <class ParserT>
-void ReactionManager::Effects::parse(ParserT &parser) {
-  bool has_effects;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_effects);
-  END_PARSE_FLAGS();
-  if (has_effects) {
-    td::parse(effects_, parser);
-    td::parse(hash_, parser);
-  }
-}
-
-template <class StorerT>
-void ReactionManager::ActiveEffects::store(StorerT &storer) const {
-  bool has_reaction_effects = !reaction_effects_.empty();
-  bool has_sticker_effects = !sticker_effects_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_reaction_effects);
-  STORE_FLAG(has_sticker_effects);
-  END_STORE_FLAGS();
-  if (has_reaction_effects) {
-    td::store(reaction_effects_, storer);
-  }
-  if (has_sticker_effects) {
-    td::store(sticker_effects_, storer);
-  }
-}
-
-template <class ParserT>
-void ReactionManager::ActiveEffects::parse(ParserT &parser) {
-  bool has_reaction_effects;
-  bool has_sticker_effects;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_reaction_effects);
-  PARSE_FLAG(has_sticker_effects);
-  END_PARSE_FLAGS();
-  if (has_reaction_effects) {
-    td::parse(reaction_effects_, parser);
-  }
-  if (has_sticker_effects) {
-    td::parse(sticker_effects_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionNotificationSettings.cpp b/third-party/td/td/td/telegram/ReactionNotificationSettings.cpp
deleted file mode 100644
index 681aad22a3..0000000000
--- a/third-party/td/td/td/telegram/ReactionNotificationSettings.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReactionNotificationSettings.h"
-
-namespace td {
-
-ReactionNotificationSettings::ReactionNotificationSettings(
-    td_api::object_ptr<td_api::reactionNotificationSettings> &&notification_settings) {
-  if (notification_settings == nullptr) {
-    return;
-  }
-  message_reactions_ = ReactionNotificationsFrom(std::move(notification_settings->message_reaction_source_));
-  story_reactions_ = ReactionNotificationsFrom(std::move(notification_settings->story_reaction_source_));
-  sound_ = get_notification_sound(false, notification_settings->sound_id_);
-  show_preview_ = notification_settings->show_preview_;
-}
-
-ReactionNotificationSettings::ReactionNotificationSettings(
-    telegram_api::object_ptr<telegram_api::reactionsNotifySettings> &&notify_settings) {
-  if (notify_settings == nullptr) {
-    return;
-  }
-  message_reactions_ = ReactionNotificationsFrom(std::move(notify_settings->messages_notify_from_));
-  story_reactions_ = ReactionNotificationsFrom(std::move(notify_settings->stories_notify_from_));
-  sound_ = get_notification_sound(notify_settings->sound_.get());
-  show_preview_ = notify_settings->show_previews_;
-}
-
-td_api::object_ptr<td_api::reactionNotificationSettings>
-ReactionNotificationSettings::get_reaction_notification_settings_object() const {
-  return td_api::make_object<td_api::reactionNotificationSettings>(
-      message_reactions_.get_reaction_notification_source_object(),
-      story_reactions_.get_reaction_notification_source_object(), get_notification_sound_ringtone_id(sound_),
-      show_preview_);
-}
-
-telegram_api::object_ptr<telegram_api::reactionsNotifySettings>
-ReactionNotificationSettings::get_input_reactions_notify_settings() const {
-  int32 flags = 0;
-  auto messages_notify_from = message_reactions_.get_input_reaction_notifications_from();
-  if (messages_notify_from != nullptr) {
-    flags |= telegram_api::reactionsNotifySettings::MESSAGES_NOTIFY_FROM_MASK;
-  }
-  auto stories_notify_from = story_reactions_.get_input_reaction_notifications_from();
-  if (stories_notify_from != nullptr) {
-    flags |= telegram_api::reactionsNotifySettings::STORIES_NOTIFY_FROM_MASK;
-  }
-  return telegram_api::make_object<telegram_api::reactionsNotifySettings>(
-      flags, std::move(messages_notify_from), std::move(stories_notify_from),
-      get_input_notification_sound(sound_, true), show_preview_);
-}
-
-void ReactionNotificationSettings::update_default_notification_sound(const ReactionNotificationSettings &other) {
-  if (is_notification_sound_default(sound_) && is_notification_sound_default(other.sound_)) {
-    sound_ = dup_notification_sound(other.sound_);
-  }
-}
-
-bool operator==(const ReactionNotificationSettings &lhs, const ReactionNotificationSettings &rhs) {
-  return lhs.message_reactions_ == rhs.message_reactions_ && lhs.story_reactions_ == rhs.story_reactions_ &&
-         are_equivalent_notification_sounds(lhs.sound_, rhs.sound_) && lhs.show_preview_ == rhs.show_preview_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReactionNotificationSettings &notification_settings) {
-  return string_builder << "ReactionNotificationSettings[messages: " << notification_settings.message_reactions_
-                        << ", stories: " << notification_settings.story_reactions_
-                        << ", sound: " << notification_settings.sound_
-                        << ", show_preview: " << notification_settings.show_preview_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionNotificationSettings.h b/third-party/td/td/td/telegram/ReactionNotificationSettings.h
deleted file mode 100644
index b5bf58a230..0000000000
--- a/third-party/td/td/td/telegram/ReactionNotificationSettings.h
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/NotificationSound.h"
-#include "td/telegram/ReactionNotificationsFrom.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ReactionNotificationSettings {
-  ReactionNotificationsFrom message_reactions_;
-  ReactionNotificationsFrom story_reactions_;
-  unique_ptr<NotificationSound> sound_;
-  bool show_preview_ = true;
-
-  friend bool operator==(const ReactionNotificationSettings &lhs, const ReactionNotificationSettings &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder,
-                                   const ReactionNotificationSettings &notification_settings);
-
- public:
-  ReactionNotificationSettings() = default;
-
-  explicit ReactionNotificationSettings(
-      td_api::object_ptr<td_api::reactionNotificationSettings> &&notification_settings);
-
-  explicit ReactionNotificationSettings(
-      telegram_api::object_ptr<telegram_api::reactionsNotifySettings> &&notify_settings);
-
-  td_api::object_ptr<td_api::reactionNotificationSettings> get_reaction_notification_settings_object() const;
-
-  telegram_api::object_ptr<telegram_api::reactionsNotifySettings> get_input_reactions_notify_settings() const;
-
-  void update_default_notification_sound(const ReactionNotificationSettings &other);
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ReactionNotificationSettings &lhs, const ReactionNotificationSettings &rhs);
-
-inline bool operator!=(const ReactionNotificationSettings &lhs, const ReactionNotificationSettings &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReactionNotificationSettings &notification_settings);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionNotificationSettings.hpp b/third-party/td/td/td/telegram/ReactionNotificationSettings.hpp
deleted file mode 100644
index 6f1e495ccf..0000000000
--- a/third-party/td/td/td/telegram/ReactionNotificationSettings.hpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/NotificationSound.h"
-#include "td/telegram/ReactionNotificationSettings.h"
-#include "td/telegram/ReactionNotificationsFrom.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ReactionNotificationSettings::store(StorerT &storer) const {
-  bool has_sound = sound_ != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_sound);
-  STORE_FLAG(show_preview_);
-  END_STORE_FLAGS();
-  td::store(message_reactions_, storer);
-  td::store(story_reactions_, storer);
-  if (has_sound) {
-    td::store(sound_, storer);
-  }
-}
-
-template <class ParserT>
-void ReactionNotificationSettings::parse(ParserT &parser) {
-  bool has_sound;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_sound);
-  PARSE_FLAG(show_preview_);
-  END_PARSE_FLAGS();
-  td::parse(message_reactions_, parser);
-  td::parse(story_reactions_, parser);
-  if (has_sound) {
-    parse_notification_sound(sound_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionNotificationsFrom.cpp b/third-party/td/td/td/telegram/ReactionNotificationsFrom.cpp
deleted file mode 100644
index af615bc225..0000000000
--- a/third-party/td/td/td/telegram/ReactionNotificationsFrom.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReactionNotificationsFrom.h"
-
-namespace td {
-
-ReactionNotificationsFrom::ReactionNotificationsFrom(
-    td_api::object_ptr<td_api::ReactionNotificationSource> &&notification_source) {
-  if (notification_source == nullptr) {
-    type_ = Type::None;
-    return;
-  }
-  switch (notification_source->get_id()) {
-    case td_api::reactionNotificationSourceNone::ID:
-      type_ = Type::None;
-      break;
-    case td_api::reactionNotificationSourceContacts::ID:
-      type_ = Type::Contacts;
-      break;
-    case td_api::reactionNotificationSourceAll::ID:
-      type_ = Type::All;
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-ReactionNotificationsFrom::ReactionNotificationsFrom(
-    telegram_api::object_ptr<telegram_api::ReactionNotificationsFrom> &&notifications_from) {
-  if (notifications_from == nullptr) {
-    type_ = Type::None;
-    return;
-  }
-  switch (notifications_from->get_id()) {
-    case telegram_api::reactionNotificationsFromContacts::ID:
-      type_ = Type::Contacts;
-      break;
-    case telegram_api::reactionNotificationsFromAll::ID:
-      type_ = Type::All;
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-td_api::object_ptr<td_api::ReactionNotificationSource>
-ReactionNotificationsFrom::get_reaction_notification_source_object() const {
-  switch (type_) {
-    case Type::None:
-      return td_api::make_object<td_api::reactionNotificationSourceNone>();
-    case Type::Contacts:
-      return td_api::make_object<td_api::reactionNotificationSourceContacts>();
-    case Type::All:
-      return td_api::make_object<td_api::reactionNotificationSourceAll>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::ReactionNotificationsFrom>
-ReactionNotificationsFrom::get_input_reaction_notifications_from() const {
-  switch (type_) {
-    case Type::None:
-      return nullptr;
-    case Type::Contacts:
-      return telegram_api::make_object<telegram_api::reactionNotificationsFromContacts>();
-    case Type::All:
-      return telegram_api::make_object<telegram_api::reactionNotificationsFromAll>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-bool operator==(const ReactionNotificationsFrom &lhs, const ReactionNotificationsFrom &rhs) {
-  return lhs.type_ == rhs.type_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReactionNotificationsFrom &notifications_from) {
-  switch (notifications_from.type_) {
-    case ReactionNotificationsFrom::Type::None:
-      return string_builder << "disabled";
-    case ReactionNotificationsFrom::Type::Contacts:
-      return string_builder << "contacts";
-    case ReactionNotificationsFrom::Type::All:
-      return string_builder << "all";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionNotificationsFrom.h b/third-party/td/td/td/telegram/ReactionNotificationsFrom.h
deleted file mode 100644
index 195c6f73ca..0000000000
--- a/third-party/td/td/td/telegram/ReactionNotificationsFrom.h
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ReactionNotificationsFrom {
-  enum class Type : int32 { None, Contacts, All };
-  Type type_ = Type::Contacts;
-
-  friend bool operator==(const ReactionNotificationsFrom &lhs, const ReactionNotificationsFrom &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ReactionNotificationsFrom &notifications_from);
-
- public:
-  ReactionNotificationsFrom() = default;
-
-  explicit ReactionNotificationsFrom(td_api::object_ptr<td_api::ReactionNotificationSource> &&notification_source);
-
-  explicit ReactionNotificationsFrom(
-      telegram_api::object_ptr<telegram_api::ReactionNotificationsFrom> &&notifications_from);
-
-  td_api::object_ptr<td_api::ReactionNotificationSource> get_reaction_notification_source_object() const;
-
-  telegram_api::object_ptr<telegram_api::ReactionNotificationsFrom> get_input_reaction_notifications_from() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ReactionNotificationsFrom &lhs, const ReactionNotificationsFrom &rhs);
-
-inline bool operator!=(const ReactionNotificationsFrom &lhs, const ReactionNotificationsFrom &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReactionNotificationsFrom &notifications_from);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionNotificationsFrom.hpp b/third-party/td/td/td/telegram/ReactionNotificationsFrom.hpp
deleted file mode 100644
index 78af83ff85..0000000000
--- a/third-party/td/td/td/telegram/ReactionNotificationsFrom.hpp
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReactionNotificationsFrom.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ReactionNotificationsFrom::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(type_, storer);
-}
-
-template <class ParserT>
-void ReactionNotificationsFrom::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(type_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionType.cpp b/third-party/td/td/td/telegram/ReactionType.cpp
deleted file mode 100644
index 3cde100497..0000000000
--- a/third-party/td/td/td/telegram/ReactionType.cpp
+++ /dev/null
@@ -1,236 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReactionType.h"
-
-#include "td/telegram/misc.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/base64.h"
-#include "td/utils/crypto.h"
-#include "td/utils/emoji.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-static int64 get_custom_emoji_id(const string &reaction) {
-  auto r_decoded = base64_decode(Slice(&reaction[1], reaction.size() - 1));
-  CHECK(r_decoded.is_ok());
-  CHECK(r_decoded.ok().size() == 8);
-  return as<int64>(r_decoded.ok().c_str());
-}
-
-static string get_custom_emoji_string(int64 custom_emoji_id) {
-  char s[8];
-  as<int64>(&s) = custom_emoji_id;
-  return PSTRING() << '#' << base64_encode(Slice(s, 8));
-}
-
-ReactionType::ReactionType(string &&emoji) : reaction_(std::move(emoji)) {
-}
-
-ReactionType::ReactionType(const telegram_api::object_ptr<telegram_api::Reaction> &reaction) {
-  if (reaction == nullptr) {
-    return;
-  }
-  switch (reaction->get_id()) {
-    case telegram_api::reactionEmpty::ID:
-      break;
-    case telegram_api::reactionEmoji::ID:
-      reaction_ = static_cast<const telegram_api::reactionEmoji *>(reaction.get())->emoticon_;
-      if (is_custom_reaction() || is_paid_reaction()) {
-        reaction_ = string();
-      }
-      break;
-    case telegram_api::reactionCustomEmoji::ID:
-      reaction_ =
-          get_custom_emoji_string(static_cast<const telegram_api::reactionCustomEmoji *>(reaction.get())->document_id_);
-      break;
-    case telegram_api::reactionPaid::ID:
-      reaction_ = "$";
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-ReactionType::ReactionType(const td_api::object_ptr<td_api::ReactionType> &type) {
-  if (type == nullptr) {
-    return;
-  }
-  switch (type->get_id()) {
-    case td_api::reactionTypeEmoji::ID: {
-      const string &emoji = static_cast<const td_api::reactionTypeEmoji *>(type.get())->emoji_;
-      if (!check_utf8(emoji)) {
-        break;
-      }
-      reaction_ = emoji;
-      if (is_custom_reaction() || is_paid_reaction()) {
-        reaction_ = string();
-        break;
-      }
-      break;
-    }
-    case td_api::reactionTypeCustomEmoji::ID:
-      reaction_ =
-          get_custom_emoji_string(static_cast<const td_api::reactionTypeCustomEmoji *>(type.get())->custom_emoji_id_);
-      break;
-    case td_api::reactionTypePaid::ID:
-      reaction_ = "$";
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-ReactionType ReactionType::paid() {
-  ReactionType reaction_type;
-  reaction_type.reaction_ = "$";
-  return reaction_type;
-}
-
-vector<ReactionType> ReactionType::get_reaction_types(
-    const vector<telegram_api::object_ptr<telegram_api::Reaction>> &reactions) {
-  return transform(reactions, [](const auto &reaction) { return ReactionType(reaction); });
-}
-
-vector<ReactionType> ReactionType::get_reaction_types(
-    const vector<td_api::object_ptr<td_api::ReactionType>> &reactions) {
-  return transform(reactions, [](const auto &reaction) { return ReactionType(reaction); });
-}
-
-vector<telegram_api::object_ptr<telegram_api::Reaction>> ReactionType::get_input_reactions(
-    const vector<ReactionType> &reaction_types) {
-  return transform(reaction_types,
-                   [](const ReactionType &reaction_type) { return reaction_type.get_input_reaction(); });
-}
-
-vector<td_api::object_ptr<td_api::ReactionType>> ReactionType::get_reaction_types_object(
-    const vector<ReactionType> &reaction_types, bool paid_reactions_available) {
-  vector<td_api::object_ptr<td_api::ReactionType>> result;
-  result.reserve(reaction_types.size() + (paid_reactions_available ? 1 : 0));
-  if (paid_reactions_available) {
-    result.push_back(paid().get_reaction_type_object());
-  }
-  for (auto &reaction_type : reaction_types) {
-    result.push_back(reaction_type.get_reaction_type_object());
-  }
-  return result;
-}
-
-telegram_api::object_ptr<telegram_api::Reaction> ReactionType::get_input_reaction() const {
-  if (is_empty()) {
-    return telegram_api::make_object<telegram_api::reactionEmpty>();
-  }
-  if (is_custom_reaction()) {
-    return telegram_api::make_object<telegram_api::reactionCustomEmoji>(get_custom_emoji_id(reaction_));
-  }
-  if (is_paid_reaction()) {
-    return telegram_api::make_object<telegram_api::reactionPaid>();
-  }
-  return telegram_api::make_object<telegram_api::reactionEmoji>(reaction_);
-}
-
-td_api::object_ptr<td_api::ReactionType> ReactionType::get_reaction_type_object() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  if (is_custom_reaction()) {
-    return td_api::make_object<td_api::reactionTypeCustomEmoji>(get_custom_emoji_id(reaction_));
-  }
-  if (is_paid_reaction()) {
-    return td_api::make_object<td_api::reactionTypePaid>();
-  }
-  return td_api::make_object<td_api::reactionTypeEmoji>(reaction_);
-}
-
-td_api::object_ptr<td_api::updateDefaultReactionType> ReactionType::get_update_default_reaction_type() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::updateDefaultReactionType>(get_reaction_type_object());
-}
-
-uint64 ReactionType::get_hash() const {
-  if (is_custom_reaction()) {
-    return static_cast<uint64>(get_custom_emoji_id(reaction_));
-  } else {
-    return get_md5_string_hash(remove_emoji_selectors(reaction_));
-  }
-}
-
-bool ReactionType::is_custom_reaction() const {
-  return reaction_[0] == '#';
-}
-
-bool ReactionType::is_paid_reaction() const {
-  return reaction_ == "$";
-}
-
-bool ReactionType::is_active_reaction(
-    const FlatHashMap<ReactionType, size_t, ReactionTypeHash> &active_reaction_pos) const {
-  return !is_empty() && (is_custom_reaction() || is_paid_reaction() || active_reaction_pos.count(*this) > 0);
-}
-
-bool operator<(const ReactionType &lhs, const ReactionType &rhs) {
-  if (lhs.is_paid_reaction()) {
-    return !rhs.is_paid_reaction();
-  }
-  if (rhs.is_paid_reaction()) {
-    return false;
-  }
-  return lhs.reaction_ < rhs.reaction_;
-}
-
-bool operator==(const ReactionType &lhs, const ReactionType &rhs) {
-  return lhs.reaction_ == rhs.reaction_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReactionType &reaction_type) {
-  if (reaction_type.is_empty()) {
-    return string_builder << "empty reaction";
-  }
-  if (reaction_type.is_custom_reaction()) {
-    return string_builder << "custom reaction " << get_custom_emoji_id(reaction_type.reaction_);
-  }
-  if (reaction_type.is_paid_reaction()) {
-    return string_builder << "paid reaction";
-  }
-  return string_builder << "reaction " << reaction_type.reaction_;
-}
-
-int64 get_reaction_types_hash(const vector<ReactionType> &reaction_types) {
-  vector<uint64> numbers;
-  for (auto &reaction_type : reaction_types) {
-    if (reaction_type.is_custom_reaction()) {
-      auto custom_emoji_id = static_cast<uint64>(get_custom_emoji_id(reaction_type.get_string()));
-      numbers.push_back(custom_emoji_id >> 32);
-      numbers.push_back(custom_emoji_id & 0xFFFFFFFF);
-    } else {
-      if (reaction_type.is_paid_reaction()) {
-        LOG(ERROR) << "Have paid reaction";
-      }
-      auto emoji = remove_emoji_selectors(reaction_type.get_string());
-      unsigned char hash[16];
-      md5(emoji, {hash, sizeof(hash)});
-      auto get = [hash](int num) {
-        return static_cast<uint32>(hash[num]);
-      };
-
-      numbers.push_back(0);
-      numbers.push_back(static_cast<int32>((get(0) << 24) + (get(1) << 16) + (get(2) << 8) + get(3)));
-    }
-  }
-  return get_vector_hash(numbers);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionType.h b/third-party/td/td/td/telegram/ReactionType.h
deleted file mode 100644
index 69225e4900..0000000000
--- a/third-party/td/td/td/telegram/ReactionType.h
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct ReactionTypeHash;
-
-class ReactionType {
-  string reaction_;
-
-  friend bool operator<(const ReactionType &lhs, const ReactionType &rhs);
-
-  friend bool operator==(const ReactionType &lhs, const ReactionType &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ReactionType &reaction_type);
-
-  friend struct ReactionTypeHash;
-
- public:
-  ReactionType() = default;
-
-  explicit ReactionType(string &&emoji);
-
-  explicit ReactionType(const telegram_api::object_ptr<telegram_api::Reaction> &reaction);
-
-  explicit ReactionType(const td_api::object_ptr<td_api::ReactionType> &type);
-
-  static ReactionType paid();
-
-  static vector<ReactionType> get_reaction_types(
-      const vector<telegram_api::object_ptr<telegram_api::Reaction>> &reactions);
-
-  static vector<ReactionType> get_reaction_types(const vector<td_api::object_ptr<td_api::ReactionType>> &reactions);
-
-  static vector<telegram_api::object_ptr<telegram_api::Reaction>> get_input_reactions(
-      const vector<ReactionType> &reaction_types);
-
-  static vector<td_api::object_ptr<td_api::ReactionType>> get_reaction_types_object(
-      const vector<ReactionType> &reaction_types, bool paid_reactions_available);
-
-  telegram_api::object_ptr<telegram_api::Reaction> get_input_reaction() const;
-
-  td_api::object_ptr<td_api::ReactionType> get_reaction_type_object() const;
-
-  td_api::object_ptr<td_api::updateDefaultReactionType> get_update_default_reaction_type() const;
-
-  uint64 get_hash() const;
-
-  bool is_custom_reaction() const;
-
-  bool is_paid_reaction() const;
-
-  bool is_active_reaction(const FlatHashMap<ReactionType, size_t, ReactionTypeHash> &active_reaction_pos) const;
-
-  bool is_empty() const {
-    return reaction_.empty();
-  }
-
-  const string &get_string() const {
-    return reaction_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-struct ReactionTypeHash {
-  uint32 operator()(const ReactionType &reaction_type) const {
-    return Hash<string>()(reaction_type.reaction_);
-  }
-};
-
-bool operator<(const ReactionType &lhs, const ReactionType &rhs);
-
-bool operator==(const ReactionType &lhs, const ReactionType &rhs);
-
-inline bool operator!=(const ReactionType &lhs, const ReactionType &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReactionType &reaction_type);
-
-int64 get_reaction_types_hash(const vector<ReactionType> &reaction_types);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionType.hpp b/third-party/td/td/td/telegram/ReactionType.hpp
deleted file mode 100644
index 2b91fe09cc..0000000000
--- a/third-party/td/td/td/telegram/ReactionType.hpp
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReactionType.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ReactionType::store(StorerT &storer) const {
-  CHECK(!is_empty());
-  td::store(reaction_, storer);
-}
-
-template <class ParserT>
-void ReactionType::parse(ParserT &parser) {
-  td::parse(reaction_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReactionUnavailabilityReason.h b/third-party/td/td/td/telegram/ReactionUnavailabilityReason.h
deleted file mode 100644
index ddb26c0f68..0000000000
--- a/third-party/td/td/td/telegram/ReactionUnavailabilityReason.h
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-enum class ReactionUnavailabilityReason : int32 { None, AnonymousAdministrator, Guest };
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RecentDialogList.cpp b/third-party/td/td/td/telegram/RecentDialogList.cpp
deleted file mode 100644
index f496a557d0..0000000000
--- a/third-party/td/td/td/telegram/RecentDialogList.cpp
+++ /dev/null
@@ -1,264 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/RecentDialogList.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogListId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-RecentDialogList::RecentDialogList(Td *td, const char *name, size_t max_size)
-    : td_(td), name_(name), max_size_(max_size) {
-  register_actor(PSLICE() << name << "_chats", this).release();
-}
-
-string RecentDialogList::get_binlog_key() const {
-  return PSTRING() << name_ << "_dialog_usernames_and_ids";
-}
-
-void RecentDialogList::save_dialogs() const {
-  if (!is_loaded_) {
-    return;
-  }
-  CHECK(removed_dialog_ids_.empty());
-
-  SliceBuilder sb;
-  for (auto &dialog_id : dialog_ids_) {
-    sb << ',';
-    if (!G()->use_chat_info_database()) {
-      // if there is no dialog info database, prefer to save dialogs by username
-      string username;
-      switch (dialog_id.get_type()) {
-        case DialogType::User:
-          if (!td_->user_manager_->is_user_contact(dialog_id.get_user_id())) {
-            username = td_->user_manager_->get_user_first_username(dialog_id.get_user_id());
-          }
-          break;
-        case DialogType::Chat:
-          break;
-        case DialogType::Channel:
-          username = td_->chat_manager_->get_channel_first_username(dialog_id.get_channel_id());
-          break;
-        case DialogType::SecretChat:
-          break;
-        case DialogType::None:
-        default:
-          UNREACHABLE();
-      }
-      if (!username.empty() && username.find(',') == string::npos) {
-        sb << '@' << username;
-        continue;
-      }
-    }
-    sb << dialog_id.get();
-  }
-  auto result = sb.as_cslice();
-  if (!result.empty()) {
-    result.remove_prefix(1);
-  }
-  G()->td_db()->get_binlog_pmc()->set(get_binlog_key(), result.str());
-}
-
-void RecentDialogList::load_dialogs(Promise<Unit> &&promise) {
-  if (is_loaded_) {
-    return promise.set_value(Unit());
-  }
-
-  load_list_queries_.push_back(std::move(promise));
-  if (load_list_queries_.size() != 1) {
-    return;
-  }
-
-  auto found_dialogs = full_split(G()->td_db()->get_binlog_pmc()->get(get_binlog_key()), ',');
-  MultiPromiseActorSafe mpas{"LoadRecentDialogListMultiPromiseActor"};
-  mpas.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), found_dialogs](Unit) mutable {
-    send_closure(actor_id, &RecentDialogList::on_load_dialogs, std::move(found_dialogs));
-  }));
-  mpas.set_ignore_errors(true);
-  auto lock = mpas.get_promise();
-
-  vector<DialogId> dialog_ids;
-  for (auto &found_dialog : found_dialogs) {
-    if (found_dialog[0] == '@') {
-      td_->dialog_manager_->search_public_dialog(found_dialog, false, mpas.get_promise());
-    } else {
-      dialog_ids.push_back(DialogId(to_integer<int64>(found_dialog)));
-    }
-  }
-  if (!dialog_ids.empty()) {
-    if (G()->use_chat_info_database() && !G()->td_db()->was_dialog_db_created()) {
-      td_->messages_manager_->load_dialogs(
-          std::move(dialog_ids),
-          PromiseCreator::lambda(
-              [promise = mpas.get_promise()](vector<DialogId> dialog_ids) mutable { promise.set_value(Unit()); }));
-    } else {
-      td_->messages_manager_->get_dialogs_from_list(
-          DialogListId(FolderId::main()), 102,
-          PromiseCreator::lambda([promise = mpas.get_promise()](td_api::object_ptr<td_api::chats> &&chats) mutable {
-            promise.set_value(Unit());
-          }));
-      td_->user_manager_->search_contacts("", 1, mpas.get_promise());
-    }
-  }
-
-  lock.set_value(Unit());
-}
-
-void RecentDialogList::on_load_dialogs(vector<string> &&found_dialogs) {
-  auto promises = std::move(load_list_queries_);
-  CHECK(!promises.empty());
-
-  if (G()->close_flag()) {
-    return fail_promises(promises, Global::request_aborted_error());
-  }
-
-  auto newly_found_dialogs = std::move(dialog_ids_);
-  reset_to_empty(dialog_ids_);
-
-  for (auto it = found_dialogs.rbegin(); it != found_dialogs.rend(); ++it) {
-    DialogId dialog_id;
-    if ((*it)[0] == '@') {
-      dialog_id = td_->dialog_manager_->get_resolved_dialog_by_username(it->substr(1));
-    } else {
-      dialog_id = DialogId(to_integer<int64>(*it));
-    }
-    if (dialog_id.is_valid() && td::contains(removed_dialog_ids_, dialog_id) == 0 &&
-        td_->dialog_manager_->have_dialog_info(dialog_id) &&
-        td_->dialog_manager_->have_input_peer(dialog_id, true, AccessRights::Read)) {
-      td_->dialog_manager_->force_create_dialog(dialog_id, "recent dialog");
-      do_add_dialog(dialog_id);
-    }
-  }
-  for (auto it = newly_found_dialogs.rbegin(); it != newly_found_dialogs.rend(); ++it) {
-    do_add_dialog(*it);
-  }
-  is_loaded_ = true;
-  removed_dialog_ids_.clear();
-  if (!newly_found_dialogs.empty()) {
-    save_dialogs();
-  }
-
-  set_promises(promises);
-}
-
-void RecentDialogList::add_dialog(DialogId dialog_id) {
-  if (!is_loaded_) {
-    load_dialogs(Promise<Unit>());
-  }
-  if (do_add_dialog(dialog_id)) {
-    save_dialogs();
-  }
-}
-
-bool RecentDialogList::do_add_dialog(DialogId dialog_id) {
-  if (!dialog_ids_.empty() && dialog_ids_[0] == dialog_id) {
-    return false;
-  }
-
-  add_to_top(dialog_ids_, max_size_, dialog_id);
-
-  td::remove(removed_dialog_ids_, dialog_id);
-  return true;
-}
-
-void RecentDialogList::remove_dialog(DialogId dialog_id) {
-  if (!dialog_id.is_valid()) {
-    return;
-  }
-  if (!is_loaded_) {
-    load_dialogs(Promise<Unit>());
-  }
-  if (td::remove(dialog_ids_, dialog_id)) {
-    save_dialogs();
-  } else if (!is_loaded_ && !td::contains(removed_dialog_ids_, dialog_id)) {
-    removed_dialog_ids_.push_back(dialog_id);
-  }
-}
-
-void RecentDialogList::update_dialogs() {
-  CHECK(is_loaded_);
-  vector<DialogId> dialog_ids;
-  for (auto dialog_id : dialog_ids_) {
-    if (!td_->messages_manager_->have_dialog(dialog_id)) {
-      continue;
-    }
-    switch (dialog_id.get_type()) {
-      case DialogType::User:
-        // always keep
-        break;
-      case DialogType::Chat: {
-        auto channel_id = td_->chat_manager_->get_chat_migrated_to_channel_id(dialog_id.get_chat_id());
-        if (channel_id.is_valid() && td_->messages_manager_->have_dialog(DialogId(channel_id))) {
-          dialog_id = DialogId(channel_id);
-        }
-        break;
-      }
-      case DialogType::Channel:
-        // always keep
-        break;
-      case DialogType::SecretChat:
-        if (td_->messages_manager_->is_deleted_secret_chat(dialog_id)) {
-          dialog_id = DialogId();
-        }
-        break;
-      case DialogType::None:
-      default:
-        UNREACHABLE();
-        break;
-    }
-    if (dialog_id.is_valid()) {
-      dialog_ids.push_back(dialog_id);
-    }
-  }
-
-  if (dialog_ids != dialog_ids_) {
-    dialog_ids_ = std::move(dialog_ids);
-    save_dialogs();
-  }
-}
-
-std::pair<int32, vector<DialogId>> RecentDialogList::get_dialogs(int32 limit, Promise<Unit> &&promise) {
-  load_dialogs(std::move(promise));
-  if (!is_loaded_) {
-    return {};
-  }
-
-  update_dialogs();
-
-  CHECK(limit >= 0);
-  auto total_count = narrow_cast<int32>(dialog_ids_.size());
-  return {total_count, vector<DialogId>(dialog_ids_.begin(), dialog_ids_.begin() + min(limit, total_count))};
-}
-
-void RecentDialogList::clear_dialogs() {
-  if (dialog_ids_.empty() && is_loaded_) {
-    return;
-  }
-
-  is_loaded_ = true;
-  dialog_ids_.clear();
-  removed_dialog_ids_.clear();
-  save_dialogs();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RecentDialogList.h b/third-party/td/td/td/telegram/RecentDialogList.h
deleted file mode 100644
index 62a6877d22..0000000000
--- a/third-party/td/td/td/telegram/RecentDialogList.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-#include <utility>
-
-namespace td {
-
-class Td;
-
-// stores list of Dialog identifiers of a limited size
-class RecentDialogList final : public Actor {
- public:
-  RecentDialogList(Td *td, const char *name, size_t max_size);
-
-  void add_dialog(DialogId dialog_id);
-
-  void remove_dialog(DialogId dialog_id);
-
-  std::pair<int32, vector<DialogId>> get_dialogs(int32 limit, Promise<Unit> &&promise);
-
-  void clear_dialogs();
-
- private:
-  Td *td_;
-  const char *name_;
-  size_t max_size_;
-  vector<DialogId> dialog_ids_;
-  vector<DialogId> removed_dialog_ids_;
-
-  bool is_loaded_ = false;
-  vector<Promise<Unit>> load_list_queries_;
-
-  void load_dialogs(Promise<Unit> &&promise);
-
-  void on_load_dialogs(vector<string> &&found_dialogs);
-
-  bool do_add_dialog(DialogId dialog_id);
-
-  string get_binlog_key() const;
-
-  void update_dialogs();
-
-  void save_dialogs() const;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramInfo.cpp b/third-party/td/td/td/telegram/ReferralProgramInfo.cpp
deleted file mode 100644
index 1dfb9228ab..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramInfo.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReferralProgramInfo.h"
-
-#include "td/telegram/telegram_api.h"
-
-namespace td {
-
-ReferralProgramInfo::ReferralProgramInfo(telegram_api::object_ptr<telegram_api::starRefProgram> &&program) {
-  if (program != nullptr) {
-    parameters_ = ReferralProgramParameters(program->commission_permille_, program->duration_months_);
-    end_date_ = program->end_date_;
-    daily_star_amount_ = StarAmount(std::move(program->daily_revenue_per_user_), true);
-  }
-}
-
-td_api::object_ptr<td_api::affiliateProgramInfo> ReferralProgramInfo::get_affiliate_program_info_object() const {
-  if (!is_valid()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::affiliateProgramInfo>(parameters_.get_affiliate_program_parameters_object(),
-                                                           end_date_, daily_star_amount_.get_star_amount_object());
-}
-
-bool operator==(const ReferralProgramInfo &lhs, const ReferralProgramInfo &rhs) {
-  return lhs.parameters_ == rhs.parameters_ && lhs.end_date_ == rhs.end_date_ &&
-         lhs.daily_star_amount_ == rhs.daily_star_amount_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReferralProgramInfo &info) {
-  string_builder << '[' << info.parameters_;
-  if (info.end_date_) {
-    string_builder << " ending at " << info.end_date_;
-  }
-  if (info.daily_star_amount_ != StarAmount()) {
-    string_builder << " with profit of " << info.daily_star_amount_;
-  }
-  return string_builder << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramInfo.h b/third-party/td/td/td/telegram/ReferralProgramInfo.h
deleted file mode 100644
index 2f1b449d56..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramInfo.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReferralProgramParameters.h"
-#include "td/telegram/StarAmount.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ReferralProgramInfo {
-  ReferralProgramParameters parameters_;
-  int32 end_date_ = 0;
-  StarAmount daily_star_amount_;
-
-  friend bool operator==(const ReferralProgramInfo &lhs, const ReferralProgramInfo &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ReferralProgramInfo &info);
-
- public:
-  ReferralProgramInfo() = default;
-
-  explicit ReferralProgramInfo(telegram_api::object_ptr<telegram_api::starRefProgram> &&program);
-
-  bool is_valid() const {
-    return parameters_.is_valid() && end_date_ >= 0;
-  }
-
-  bool is_active() const {
-    return end_date_ == 0;
-  }
-
-  td_api::object_ptr<td_api::affiliateProgramInfo> get_affiliate_program_info_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ReferralProgramInfo &lhs, const ReferralProgramInfo &rhs);
-
-inline bool operator!=(const ReferralProgramInfo &lhs, const ReferralProgramInfo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReferralProgramInfo &info);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramInfo.hpp b/third-party/td/td/td/telegram/ReferralProgramInfo.hpp
deleted file mode 100644
index 7b1fee7163..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramInfo.hpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReferralProgramInfo.h"
-
-#include "td/telegram/ReferralProgramParameters.hpp"
-#include "td/telegram/StarAmount.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ReferralProgramInfo::store(StorerT &storer) const {
-  bool has_end_date = end_date_ != 0;
-  bool has_daily_star_amount = daily_star_amount_ != StarAmount();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_end_date);
-  STORE_FLAG(has_daily_star_amount);
-  END_STORE_FLAGS();
-  td::store(parameters_, storer);
-  if (has_end_date) {
-    td::store(end_date_, storer);
-  }
-  if (has_daily_star_amount) {
-    td::store(daily_star_amount_, storer);
-  }
-}
-
-template <class ParserT>
-void ReferralProgramInfo::parse(ParserT &parser) {
-  bool has_end_date;
-  bool has_daily_star_amount;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_end_date);
-  PARSE_FLAG(has_daily_star_amount);
-  END_PARSE_FLAGS();
-  td::parse(parameters_, parser);
-  if (has_end_date) {
-    td::parse(end_date_, parser);
-  }
-  if (has_daily_star_amount) {
-    td::parse(daily_star_amount_, parser);
-  }
-  if (!is_valid()) {
-    parser.set_error("Invalid referral program info stored in the database");
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramManager.cpp b/third-party/td/td/td/telegram/ReferralProgramManager.cpp
deleted file mode 100644
index f5e13be855..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramManager.cpp
+++ /dev/null
@@ -1,497 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReferralProgramManager.h"
-
-#include "td/telegram/AffiliateType.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/ReferralProgramInfo.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class UpdateStarRefProgramQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-
- public:
-  explicit UpdateStarRefProgramQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-            const ReferralProgramParameters &parameters) {
-    user_id_ = user_id;
-    int32 flags = 0;
-    if (parameters.get_month_count() != 0) {
-      flags |= telegram_api::bots_updateStarRefProgram::DURATION_MONTHS_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::bots_updateStarRefProgram(
-        flags, std::move(input_user), parameters.get_commission(), parameters.get_month_count())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_updateStarRefProgram>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for UpdateStarRefProgramQuery: " << to_string(ptr);
-    td_->user_manager_->on_update_user_referral_program_info(user_id_, ReferralProgramInfo(std::move(ptr)));
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResolveReferralProgramQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chat>> promise_;
-
- public:
-  explicit ResolveReferralProgramQuery(Promise<td_api::object_ptr<td_api::chat>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &username, const string &referrer) {
-    int32 flags = telegram_api::contacts_resolveUsername::REFERER_MASK;
-    send_query(G()->net_query_creator().create(telegram_api::contacts_resolveUsername(flags, username, referrer)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_resolveUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ResolveReferralProgramQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "ResolveReferralProgramQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "ResolveReferralProgramQuery");
-
-    DialogId dialog_id(ptr->peer_);
-    if (dialog_id.get_type() != DialogType::User || !td_->user_manager_->have_user(dialog_id.get_user_id())) {
-      return on_error(Status::Error(400, "Chat not found"));
-    }
-
-    td_->dialog_manager_->force_create_dialog(dialog_id, "ResolveReferralProgramQuery");
-    promise_.set_value(td_->messages_manager_->get_chat_object(dialog_id, "ResolveReferralProgramQuery"));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReferralProgramManager::GetSuggestedStarRefBotsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundAffiliatePrograms>> promise_;
-  AffiliateType affiliate_type_;
-
- public:
-  explicit GetSuggestedStarRefBotsQuery(Promise<td_api::object_ptr<td_api::foundAffiliatePrograms>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(AffiliateType affiliate_type, ReferralProgramSortOrder sort_order, const string &offset, int32 limit) {
-    affiliate_type_ = affiliate_type;
-    auto input_peer = affiliate_type.get_input_peer(td_);
-    CHECK(input_peer != nullptr);
-    int32 flags = 0;
-    switch (sort_order) {
-      case ReferralProgramSortOrder::Profitability:
-        break;
-      case ReferralProgramSortOrder::Date:
-        flags |= telegram_api::payments_getSuggestedStarRefBots::ORDER_BY_DATE_MASK;
-        break;
-      case ReferralProgramSortOrder::Revenue:
-        flags |= telegram_api::payments_getSuggestedStarRefBots::ORDER_BY_REVENUE_MASK;
-        break;
-      default:
-        UNREACHABLE();
-    }
-    send_query(G()->net_query_creator().create(telegram_api::payments_getSuggestedStarRefBots(
-        flags, false /*ignored*/, false /*ignored*/, std::move(input_peer), offset, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getSuggestedStarRefBots>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetSuggestedStarRefBotsQuery: " << to_string(ptr);
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetSuggestedStarRefBotsQuery");
-
-    vector<td_api::object_ptr<td_api::foundAffiliateProgram>> programs;
-    for (auto &ref : ptr->suggested_bots_) {
-      SuggestedBotStarRef star_ref(std::move(ref));
-      if (!star_ref.is_valid()) {
-        LOG(ERROR) << "Receive invalid affiliate program for " << affiliate_type_;
-        continue;
-      }
-      if (!star_ref.is_active()) {
-        LOG(INFO) << "Receive canceled affiliate program for " << affiliate_type_;
-        continue;
-      }
-      programs.push_back(star_ref.get_found_affiliate_program_object(td_));
-    }
-
-    auto total_count = ptr->count_;
-    if (total_count < static_cast<int32>(programs.size())) {
-      LOG(ERROR) << "Receive total count = " << total_count << ", but " << programs.size() << " affiliate programs";
-      total_count = static_cast<int32>(programs.size());
-    }
-    promise_.set_value(
-        td_api::make_object<td_api::foundAffiliatePrograms>(total_count, std::move(programs), ptr->next_offset_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(affiliate_type_.get_dialog_id(), status, "GetSuggestedStarRefBotsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReferralProgramManager::ConnectStarRefBotQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> promise_;
-  AffiliateType affiliate_type_;
-
- public:
-  explicit ConnectStarRefBotQuery(Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(AffiliateType affiliate_type, telegram_api::object_ptr<telegram_api::InputUser> &&input_user) {
-    affiliate_type_ = affiliate_type;
-    auto input_peer = affiliate_type.get_input_peer(td_);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_connectStarRefBot(std::move(input_peer), std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_connectStarRefBot>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ConnectStarRefBotQuery: " << to_string(ptr);
-    if (ptr->connected_bots_.size() != 1u) {
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "ConnectStarRefBotQuery");
-
-    ConnectedBotStarRef ref(std::move(ptr->connected_bots_[0]));
-    if (!ref.is_valid()) {
-      LOG(ERROR) << "Receive invalid connected affiliate program for " << affiliate_type_;
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-    promise_.set_value(ref.get_connected_affiliate_program_object(td_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(affiliate_type_.get_dialog_id(), status, "ConnectStarRefBotQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReferralProgramManager::EditConnectedStarRefBotQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> promise_;
-  AffiliateType affiliate_type_;
-
- public:
-  explicit EditConnectedStarRefBotQuery(Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(AffiliateType affiliate_type, const string &url) {
-    affiliate_type_ = affiliate_type;
-    int32 flags = telegram_api::payments_editConnectedStarRefBot::REVOKED_MASK;
-    auto input_peer = affiliate_type.get_input_peer(td_);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_editConnectedStarRefBot(flags, false /*ignored*/, std::move(input_peer), url)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_editConnectedStarRefBot>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for EditConnectedStarRefBotQuery: " << to_string(ptr);
-    if (ptr->connected_bots_.size() != 1u) {
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "EditConnectedStarRefBotQuery");
-
-    ConnectedBotStarRef ref(std::move(ptr->connected_bots_[0]));
-    if (!ref.is_valid()) {
-      LOG(ERROR) << "Receive invalid connected affiliate program for " << affiliate_type_;
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-    promise_.set_value(ref.get_connected_affiliate_program_object(td_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(affiliate_type_.get_dialog_id(), status, "EditConnectedStarRefBotQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReferralProgramManager::GetConnectedStarRefBotQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> promise_;
-  AffiliateType affiliate_type_;
-
- public:
-  explicit GetConnectedStarRefBotQuery(Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(AffiliateType affiliate_type, telegram_api::object_ptr<telegram_api::InputUser> &&input_user) {
-    affiliate_type_ = affiliate_type;
-    auto input_peer = affiliate_type.get_input_peer(td_);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getConnectedStarRefBot(std::move(input_peer), std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getConnectedStarRefBot>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetConnectedStarRefBotQuery: " << to_string(ptr);
-    if (ptr->connected_bots_.size() != 1u) {
-      if (ptr->connected_bots_.empty()) {
-        return promise_.set_value(nullptr);
-      }
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetConnectedStarRefBotQuery");
-
-    ConnectedBotStarRef ref(std::move(ptr->connected_bots_[0]));
-    if (!ref.is_valid()) {
-      LOG(ERROR) << "Receive invalid connected affiliate program for " << affiliate_type_;
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-    promise_.set_value(ref.get_connected_affiliate_program_object(td_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(affiliate_type_.get_dialog_id(), status, "GetConnectedStarRefBotQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReferralProgramManager::GetConnectedStarRefBotsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::connectedAffiliatePrograms>> promise_;
-  AffiliateType affiliate_type_;
-
- public:
-  explicit GetConnectedStarRefBotsQuery(Promise<td_api::object_ptr<td_api::connectedAffiliatePrograms>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(AffiliateType affiliate_type, const string &offset, int32 limit) {
-    affiliate_type_ = affiliate_type;
-    int32 date = 0;
-    string link;
-    int32 flags = 0;
-    if (!offset.empty()) {
-      auto split_offset = split(offset);
-      date = to_integer<int32>(split_offset.first);
-      link = std::move(split_offset.second);
-      flags |= telegram_api::payments_getConnectedStarRefBots::OFFSET_DATE_MASK;
-    }
-    auto input_peer = affiliate_type.get_input_peer(td_);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getConnectedStarRefBots(flags, std::move(input_peer), date, link, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getConnectedStarRefBots>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetConnectedStarRefBotsQuery: " << to_string(ptr);
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetConnectedStarRefBotsQuery");
-
-    vector<td_api::object_ptr<td_api::connectedAffiliateProgram>> programs;
-    string next_offset;
-    for (auto &ref : ptr->connected_bots_) {
-      next_offset = PSTRING() << ref->date_ << ' ' << ref->url_;
-      ConnectedBotStarRef star_ref(std::move(ref));
-      if (!star_ref.is_valid()) {
-        LOG(ERROR) << "Receive invalid connected affiliate program for " << affiliate_type_;
-        continue;
-      }
-      programs.push_back(star_ref.get_connected_affiliate_program_object(td_));
-    }
-
-    auto total_count = ptr->count_;
-    if (total_count < static_cast<int32>(programs.size())) {
-      LOG(ERROR) << "Receive total count = " << total_count << ", but " << programs.size() << " affiliate programs";
-      total_count = static_cast<int32>(programs.size());
-    }
-    promise_.set_value(
-        td_api::make_object<td_api::connectedAffiliatePrograms>(total_count, std::move(programs), next_offset));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(affiliate_type_.get_dialog_id(), status, "GetConnectedStarRefBotsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-ReferralProgramManager::SuggestedBotStarRef::SuggestedBotStarRef(
-    telegram_api::object_ptr<telegram_api::starRefProgram> &&ref)
-    : user_id_(ref->bot_id_), info_(std::move(ref)) {
-}
-
-td_api::object_ptr<td_api::foundAffiliateProgram>
-ReferralProgramManager::SuggestedBotStarRef::get_found_affiliate_program_object(Td *td) const {
-  CHECK(is_valid());
-  return td_api::make_object<td_api::foundAffiliateProgram>(
-      td->user_manager_->get_user_id_object(user_id_, "foundAffiliateProgram"),
-      info_.get_affiliate_program_info_object());
-}
-
-ReferralProgramManager::ConnectedBotStarRef::ConnectedBotStarRef(
-    telegram_api::object_ptr<telegram_api::connectedBotStarRef> &&ref)
-    : url_(std::move(ref->url_))
-    , date_(ref->date_)
-    , user_id_(ref->bot_id_)
-    , parameters_(ref->commission_permille_, ref->duration_months_)
-    , participant_count_(ref->participants_)
-    , revenue_star_count_(StarManager::get_star_count(ref->revenue_))
-    , is_revoked_(ref->revoked_) {
-}
-
-td_api::object_ptr<td_api::connectedAffiliateProgram>
-ReferralProgramManager::ConnectedBotStarRef::get_connected_affiliate_program_object(Td *td) const {
-  CHECK(is_valid());
-  return td_api::make_object<td_api::connectedAffiliateProgram>(
-      url_, td->user_manager_->get_user_id_object(user_id_, "connectedAffiliateProgram"),
-      parameters_.get_affiliate_program_parameters_object(), date_, is_revoked_, participant_count_,
-      revenue_star_count_);
-}
-
-ReferralProgramManager::ReferralProgramManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void ReferralProgramManager::tear_down() {
-  parent_.reset();
-}
-
-void ReferralProgramManager::set_dialog_referral_program(DialogId dialog_id, ReferralProgramParameters parameters,
-                                                         Promise<Unit> &&promise) {
-  if (!parameters.is_valid() && parameters != ReferralProgramParameters()) {
-    return promise.set_error(Status::Error(400, "Invalid affiliate parameters specified"));
-  }
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(dialog_id.get_user_id()));
-      if (bot_data.can_be_edited) {
-        break;
-      }
-      return promise.set_error(Status::Error(400, "The bot isn't owned"));
-    }
-    case DialogType::Chat:
-    case DialogType::Channel:
-    case DialogType::SecretChat:
-    case DialogType::None:
-      return promise.set_error(Status::Error(400, "The chat can't have affiliate program"));
-    default:
-      UNREACHABLE();
-  }
-  auto bot_user_id = dialog_id.get_user_id();
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-
-  td_->create_handler<UpdateStarRefProgramQuery>(std::move(promise))
-      ->send(bot_user_id, std::move(input_user), parameters);
-}
-
-void ReferralProgramManager::search_dialog_referral_program(const string &username, const string &referral,
-                                                            Promise<td_api::object_ptr<td_api::chat>> &&promise) {
-  td_->create_handler<ResolveReferralProgramQuery>(std::move(promise))->send(username, referral);
-}
-
-void ReferralProgramManager::search_referral_programs(
-    const td_api::object_ptr<td_api::AffiliateType> &affiliate, ReferralProgramSortOrder sort_order,
-    const string &offset, int32 limit, Promise<td_api::object_ptr<td_api::foundAffiliatePrograms>> &&promise) {
-  TRY_RESULT_PROMISE(promise, affiliate_type, AffiliateType::get_affiliate_type(td_, affiliate));
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Limit must be positive"));
-  }
-
-  td_->create_handler<GetSuggestedStarRefBotsQuery>(std::move(promise))
-      ->send(affiliate_type, sort_order, offset, limit);
-}
-
-void ReferralProgramManager::connect_referral_program(
-    const td_api::object_ptr<td_api::AffiliateType> &affiliate, UserId bot_user_id,
-    Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise) {
-  TRY_RESULT_PROMISE(promise, affiliate_type, AffiliateType::get_affiliate_type(td_, affiliate));
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-
-  td_->create_handler<ConnectStarRefBotQuery>(std::move(promise))->send(affiliate_type, std::move(input_user));
-}
-
-void ReferralProgramManager::revoke_referral_program(
-    const td_api::object_ptr<td_api::AffiliateType> &affiliate, const string &url,
-    Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise) {
-  TRY_RESULT_PROMISE(promise, affiliate_type, AffiliateType::get_affiliate_type(td_, affiliate));
-
-  td_->create_handler<EditConnectedStarRefBotQuery>(std::move(promise))->send(affiliate_type, url);
-}
-
-void ReferralProgramManager::get_connected_referral_program(
-    const td_api::object_ptr<td_api::AffiliateType> &affiliate, UserId bot_user_id,
-    Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise) {
-  TRY_RESULT_PROMISE(promise, affiliate_type, AffiliateType::get_affiliate_type(td_, affiliate));
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-
-  td_->create_handler<GetConnectedStarRefBotQuery>(std::move(promise))->send(affiliate_type, std::move(input_user));
-}
-
-void ReferralProgramManager::get_connected_referral_programs(
-    const td_api::object_ptr<td_api::AffiliateType> &affiliate, const string &offset, int32 limit,
-    Promise<td_api::object_ptr<td_api::connectedAffiliatePrograms>> &&promise) {
-  TRY_RESULT_PROMISE(promise, affiliate_type, AffiliateType::get_affiliate_type(td_, affiliate));
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Limit must be positive"));
-  }
-
-  td_->create_handler<GetConnectedStarRefBotsQuery>(std::move(promise))->send(affiliate_type, offset, limit);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramManager.h b/third-party/td/td/td/telegram/ReferralProgramManager.h
deleted file mode 100644
index 512b9ead10..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramManager.h
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/ReferralProgramInfo.h"
-#include "td/telegram/ReferralProgramParameters.h"
-#include "td/telegram/ReferralProgramSortOrder.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class ReferralProgramManager final : public Actor {
- public:
-  ReferralProgramManager(Td *td, ActorShared<> parent);
-
-  void set_dialog_referral_program(DialogId dialog_id, ReferralProgramParameters parameters, Promise<Unit> &&promise);
-
-  void search_dialog_referral_program(const string &username, const string &referral,
-                                      Promise<td_api::object_ptr<td_api::chat>> &&promise);
-
-  void search_referral_programs(const td_api::object_ptr<td_api::AffiliateType> &affiliate,
-                                ReferralProgramSortOrder sort_order, const string &offset, int32 limit,
-                                Promise<td_api::object_ptr<td_api::foundAffiliatePrograms>> &&promise);
-
-  void connect_referral_program(const td_api::object_ptr<td_api::AffiliateType> &affiliate, UserId bot_user_id,
-                                Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise);
-
-  void revoke_referral_program(const td_api::object_ptr<td_api::AffiliateType> &affiliate, const string &url,
-                               Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise);
-
-  void get_connected_referral_program(const td_api::object_ptr<td_api::AffiliateType> &affiliate, UserId bot_user_id,
-                                      Promise<td_api::object_ptr<td_api::connectedAffiliateProgram>> &&promise);
-
-  void get_connected_referral_programs(const td_api::object_ptr<td_api::AffiliateType> &affiliate, const string &offset,
-                                       int32 limit,
-                                       Promise<td_api::object_ptr<td_api::connectedAffiliatePrograms>> &&promise);
-
- private:
-  class GetSuggestedStarRefBotsQuery;
-  class ConnectStarRefBotQuery;
-  class EditConnectedStarRefBotQuery;
-  class GetConnectedStarRefBotQuery;
-  class GetConnectedStarRefBotsQuery;
-
-  class SuggestedBotStarRef {
-    UserId user_id_;
-    ReferralProgramInfo info_;
-
-   public:
-    explicit SuggestedBotStarRef(telegram_api::object_ptr<telegram_api::starRefProgram> &&ref);
-
-    bool is_valid() const {
-      return user_id_.is_valid() && info_.is_valid();
-    }
-
-    bool is_active() const {
-      return info_.is_active();
-    }
-
-    td_api::object_ptr<td_api::foundAffiliateProgram> get_found_affiliate_program_object(Td *td) const;
-  };
-
-  class ConnectedBotStarRef {
-    string url_;
-    int32 date_ = 0;
-    UserId user_id_;
-    ReferralProgramParameters parameters_;
-    int64 participant_count_ = 0;
-    int64 revenue_star_count_ = 0;
-    bool is_revoked_ = false;
-
-   public:
-    explicit ConnectedBotStarRef(telegram_api::object_ptr<telegram_api::connectedBotStarRef> &&ref);
-
-    bool is_valid() const {
-      return !url_.empty() && date_ > 0 && user_id_.is_valid() && parameters_.is_valid() && participant_count_ >= 0 &&
-             revenue_star_count_ >= 0;
-    }
-
-    td_api::object_ptr<td_api::connectedAffiliateProgram> get_connected_affiliate_program_object(Td *td) const;
-  };
-
-  void tear_down() final;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramParameters.cpp b/third-party/td/td/td/telegram/ReferralProgramParameters.cpp
deleted file mode 100644
index e879430347..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramParameters.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReferralProgramParameters.h"
-
-namespace td {
-
-ReferralProgramParameters::ReferralProgramParameters(int32 commission_permille, int32 duration_months)
-    : commission_(commission_permille), month_count_(duration_months) {
-}
-
-ReferralProgramParameters::ReferralProgramParameters(
-    const td_api::object_ptr<td_api::affiliateProgramParameters> &parameters) {
-  if (parameters != nullptr) {
-    commission_ = parameters->commission_per_mille_;
-    month_count_ = parameters->month_count_;
-    if (!is_valid()) {
-      commission_ = -1;
-    }
-  }
-}
-
-td_api::object_ptr<td_api::affiliateProgramParameters>
-ReferralProgramParameters::get_affiliate_program_parameters_object() const {
-  CHECK(is_valid());
-  return td_api::make_object<td_api::affiliateProgramParameters>(commission_, month_count_);
-}
-
-bool operator==(const ReferralProgramParameters &lhs, const ReferralProgramParameters &rhs) {
-  return lhs.commission_ == rhs.commission_ && lhs.month_count_ == rhs.month_count_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReferralProgramParameters &parameters) {
-  string_builder << "ReferralProgram[" << parameters.commission_;
-  if (parameters.month_count_ != 0) {
-    string_builder << " X " << parameters.month_count_;
-  }
-  return string_builder << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramParameters.h b/third-party/td/td/td/telegram/ReferralProgramParameters.h
deleted file mode 100644
index 8fb521acc0..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramParameters.h
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ReferralProgramParameters {
-  int32 commission_ = 0;
-  int32 month_count_ = 0;
-
-  friend bool operator==(const ReferralProgramParameters &lhs, const ReferralProgramParameters &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ReferralProgramParameters &parameters);
-
- public:
-  ReferralProgramParameters() = default;
-
-  ReferralProgramParameters(int32 commission_permille, int32 duration_months);
-
-  explicit ReferralProgramParameters(const td_api::object_ptr<td_api::affiliateProgramParameters> &parameters);
-
-  bool is_valid() const {
-    return 1 <= commission_ && commission_ <= 999 && 0 <= month_count_ && month_count_ <= 36;
-  }
-
-  int32 get_commission() const {
-    return commission_;
-  }
-
-  int32 get_month_count() const {
-    return month_count_;
-  }
-
-  td_api::object_ptr<td_api::affiliateProgramParameters> get_affiliate_program_parameters_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ReferralProgramParameters &lhs, const ReferralProgramParameters &rhs);
-
-inline bool operator!=(const ReferralProgramParameters &lhs, const ReferralProgramParameters &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReferralProgramParameters &parameters);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramParameters.hpp b/third-party/td/td/td/telegram/ReferralProgramParameters.hpp
deleted file mode 100644
index c7c836dc33..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramParameters.hpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReferralProgramParameters.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ReferralProgramParameters::store(StorerT &storer) const {
-  bool has_month_count = month_count_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_month_count);
-  END_STORE_FLAGS();
-  td::store(commission_, storer);
-  if (has_month_count) {
-    td::store(month_count_, storer);
-  }
-}
-
-template <class ParserT>
-void ReferralProgramParameters::parse(ParserT &parser) {
-  bool has_month_count;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_month_count);
-  END_PARSE_FLAGS();
-  td::parse(commission_, parser);
-  if (has_month_count) {
-    td::parse(month_count_, parser);
-  }
-  if (!is_valid()) {
-    parser.set_error("Invalid referral program parameters stored in the database");
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramSortOrder.cpp b/third-party/td/td/td/telegram/ReferralProgramSortOrder.cpp
deleted file mode 100644
index d100c80af7..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramSortOrder.cpp
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReferralProgramSortOrder.h"
-
-namespace td {
-
-ReferralProgramSortOrder get_referral_program_sort_order(
-    const td_api::object_ptr<td_api::AffiliateProgramSortOrder> &order) {
-  if (order == nullptr) {
-    return ReferralProgramSortOrder::Profitability;
-  }
-  switch (order->get_id()) {
-    case td_api::affiliateProgramSortOrderProfitability::ID:
-      return ReferralProgramSortOrder::Profitability;
-    case td_api::affiliateProgramSortOrderCreationDate::ID:
-      return ReferralProgramSortOrder::Date;
-    case td_api::affiliateProgramSortOrderRevenue::ID:
-      return ReferralProgramSortOrder::Revenue;
-    default:
-      UNREACHABLE();
-      return ReferralProgramSortOrder::Profitability;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReferralProgramSortOrder.h b/third-party/td/td/td/telegram/ReferralProgramSortOrder.h
deleted file mode 100644
index 67a81d27b2..0000000000
--- a/third-party/td/td/td/telegram/ReferralProgramSortOrder.h
+++ /dev/null
@@ -1,21 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class ReferralProgramSortOrder : int32 { Profitability, Date, Revenue };
-
-ReferralProgramSortOrder get_referral_program_sort_order(
-    const td_api::object_ptr<td_api::AffiliateProgramSortOrder> &order);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RepliedMessageInfo.cpp b/third-party/td/td/td/telegram/RepliedMessageInfo.cpp
deleted file mode 100644
index 0d2cd97608..0000000000
--- a/third-party/td/td/td/telegram/RepliedMessageInfo.cpp
+++ /dev/null
@@ -1,391 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/RepliedMessageInfo.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageCopyOptions.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/ScheduledServerMessageId.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-static bool has_qts_messages(const Td *td, DialogId dialog_id) {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-      return td->option_manager_->get_option_integer("session_count") > 1;
-    case DialogType::Channel:
-    case DialogType::SecretChat:
-      return false;
-    case DialogType::None:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-RepliedMessageInfo::~RepliedMessageInfo() = default;
-
-RepliedMessageInfo::RepliedMessageInfo(Td *td, tl_object_ptr<telegram_api::messageReplyHeader> &&reply_header,
-                                       DialogId dialog_id, MessageId message_id, int32 date) {
-  CHECK(reply_header != nullptr);
-  if (reply_header->reply_to_scheduled_) {
-    message_id_ = MessageId(ScheduledServerMessageId(reply_header->reply_to_msg_id_), date);
-    if (message_id.is_valid_scheduled()) {
-      if (reply_header->reply_to_peer_id_ != nullptr) {
-        dialog_id_ = DialogId(reply_header->reply_to_peer_id_);
-        LOG(ERROR) << "Receive reply to " << MessageFullId{dialog_id_, message_id_} << " in "
-                   << MessageFullId{dialog_id, message_id};
-        message_id_ = MessageId();
-        dialog_id_ = DialogId();
-      }
-      if (message_id == message_id_) {
-        LOG(ERROR) << "Receive reply to " << message_id_ << " in " << MessageFullId{dialog_id, message_id};
-        message_id_ = MessageId();
-      }
-    } else {
-      LOG(ERROR) << "Receive reply to " << message_id_ << " in " << MessageFullId{dialog_id, message_id};
-      message_id_ = MessageId();
-    }
-    if (reply_header->reply_from_ != nullptr || reply_header->reply_media_ != nullptr) {
-      LOG(ERROR) << "Receive reply from other chat " << to_string(reply_header) << " in "
-                 << MessageFullId{dialog_id, message_id};
-    }
-  } else {
-    if (reply_header->reply_to_msg_id_ != 0) {
-      message_id_ = MessageId(ServerMessageId(reply_header->reply_to_msg_id_));
-      if (reply_header->reply_to_peer_id_ != nullptr) {
-        dialog_id_ = DialogId(reply_header->reply_to_peer_id_);
-        if (!dialog_id_.is_valid()) {
-          LOG(ERROR) << "Receive reply in invalid " << to_string(reply_header->reply_to_peer_id_);
-          message_id_ = MessageId();
-          dialog_id_ = DialogId();
-        }
-      }
-      if (!message_id_.is_valid()) {
-        LOG(ERROR) << "Receive " << to_string(reply_header) << " in " << MessageFullId{dialog_id, message_id};
-        message_id_ = MessageId();
-        dialog_id_ = DialogId();
-      } else if (!message_id.is_scheduled() && !dialog_id_.is_valid() &&
-                 ((message_id_ > message_id && !has_qts_messages(td, dialog_id)) || message_id_ == message_id)) {
-        LOG(ERROR) << "Receive reply to " << message_id_ << " in " << MessageFullId{dialog_id, message_id};
-        message_id_ = MessageId();
-      }
-    } else if (reply_header->reply_to_peer_id_ != nullptr) {
-      LOG(ERROR) << "Receive " << to_string(reply_header) << " in " << MessageFullId{dialog_id, message_id};
-    }
-    if (reply_header->reply_from_ != nullptr) {
-      origin_date_ = reply_header->reply_from_->date_;
-      if (origin_date_ <= 0) {
-        LOG(ERROR) << "Receive " << to_string(reply_header) << " in " << MessageFullId{dialog_id, message_id};
-        origin_date_ = 0;
-      } else {
-        auto r_reply_origin = MessageOrigin::get_message_origin(td, std::move(reply_header->reply_from_));
-        if (r_reply_origin.is_error()) {
-          origin_date_ = 0;
-        } else {
-          origin_ = r_reply_origin.move_as_ok();
-        }
-      }
-    }
-    if (!origin_.is_empty() && reply_header->reply_media_ != nullptr &&
-        reply_header->reply_media_->get_id() != telegram_api::messageMediaEmpty::ID) {
-      content_ = get_message_content(td, FormattedText(), std::move(reply_header->reply_media_), dialog_id,
-                                     origin_date_, true, UserId(), nullptr, nullptr, "messageReplyHeader");
-      CHECK(content_ != nullptr);
-      if (!is_supported_reply_message_content(content_->get_type())) {
-        LOG(ERROR) << "Receive reply with media of the type " << content_->get_type();
-        content_ = nullptr;
-      }
-    }
-  }
-  if (!origin_.is_empty() || message_id_ != MessageId()) {
-    quote_ = MessageQuote(td, reply_header);
-  }
-}
-
-RepliedMessageInfo::RepliedMessageInfo(Td *td, const MessageInputReplyTo &input_reply_to) {
-  if (!input_reply_to.message_id_.is_valid() && !input_reply_to.message_id_.is_valid_scheduled()) {
-    return;
-  }
-  message_id_ = input_reply_to.message_id_;
-  quote_ = input_reply_to.quote_.clone();
-  if (input_reply_to.dialog_id_ != DialogId() && input_reply_to.message_id_.is_valid()) {
-    auto info =
-        td->messages_manager_->get_forwarded_message_info({input_reply_to.dialog_id_, input_reply_to.message_id_});
-    if (info.origin_date_ == 0 || info.origin_.is_empty() || info.content_ == nullptr) {
-      *this = {};
-      return;
-    }
-    origin_date_ = info.origin_date_;
-    origin_ = std::move(info.origin_);
-    content_ = std::move(info.content_);
-    auto content_text = get_message_content_text_mutable(content_.get());
-    if (content_text != nullptr) {
-      if (quote_.is_empty()) {
-        quote_ = MessageQuote::create_automatic_quote(td, std::move(*content_text));
-      }
-      *content_text = FormattedText();
-    }
-    auto origin_message_full_id = origin_.get_message_full_id();
-    if (origin_message_full_id.get_message_id().is_valid()) {
-      message_id_ = origin_message_full_id.get_message_id();
-      dialog_id_ = origin_message_full_id.get_dialog_id();
-    } else if (input_reply_to.dialog_id_.get_type() == DialogType::Channel) {
-      dialog_id_ = input_reply_to.dialog_id_;
-    } else {
-      message_id_ = MessageId();
-    }
-  }
-}
-
-RepliedMessageInfo RepliedMessageInfo::clone(Td *td) const {
-  RepliedMessageInfo result;
-  result.message_id_ = message_id_;
-  result.dialog_id_ = dialog_id_;
-  result.origin_date_ = origin_date_;
-  result.origin_ = origin_;
-  if (content_ != nullptr) {
-    result.content_ = dup_message_content(td, td->dialog_manager_->get_my_dialog_id(), content_.get(),
-                                          MessageContentDupType::Forward, MessageCopyOptions());
-  }
-  result.quote_ = quote_.clone();
-  return result;
-}
-
-bool RepliedMessageInfo::need_reget() const {
-  return content_ != nullptr && need_reget_message_content(content_.get());
-}
-
-bool RepliedMessageInfo::need_reply_changed_warning(
-    const Td *td, const RepliedMessageInfo &old_info, const RepliedMessageInfo &new_info,
-    MessageId old_top_thread_message_id, bool is_yet_unsent,
-    std::function<bool(const RepliedMessageInfo &info)> is_reply_to_deleted_message) {
-  if (old_info.origin_date_ != new_info.origin_date_ && old_info.origin_date_ != 0 && new_info.origin_date_ != 0) {
-    // date of the original message can't change
-    return true;
-  }
-  if (old_info.origin_ != new_info.origin_ && !old_info.origin_.has_sender_signature() &&
-      !new_info.origin_.has_sender_signature() && !old_info.origin_.is_empty() && !new_info.origin_.is_empty()) {
-    // only signature can change in the message origin
-    return true;
-  }
-  auto need_quote_warning = MessageQuote::need_quote_changed_warning(old_info.quote_, new_info.quote_);
-  if (need_quote_warning != 0) {
-    return need_quote_warning > 0;
-  }
-  if (old_info.dialog_id_ != new_info.dialog_id_ && old_info.dialog_id_ != DialogId() &&
-      new_info.dialog_id_ != DialogId()) {
-    // reply chat can't change
-    return true;
-  }
-  if (old_info.message_id_ == new_info.message_id_ && old_info.dialog_id_ == new_info.dialog_id_) {
-    if (old_info.message_id_ != MessageId()) {
-      if (old_info.origin_date_ != new_info.origin_date_) {
-        // date of the original message can't change
-        return true;
-      }
-      if (old_info.origin_ != new_info.origin_ && !old_info.origin_.has_sender_signature() &&
-          !new_info.origin_.has_sender_signature()) {
-        // only signature can change in the message origin
-        return true;
-      }
-    }
-    return false;
-  }
-  if (is_yet_unsent && is_reply_to_deleted_message(old_info) && new_info.message_id_ == MessageId()) {
-    // reply to a deleted message, which was available locally
-    return false;
-  }
-  if (is_yet_unsent && is_reply_to_deleted_message(new_info) && old_info.message_id_ == MessageId()) {
-    // reply to a locally deleted yet unsent message, which was available server-side
-    return false;
-  }
-  if (old_info.message_id_.is_valid_scheduled() && old_info.message_id_.is_scheduled_server() &&
-      new_info.message_id_.is_valid_scheduled() && new_info.message_id_.is_scheduled_server() &&
-      old_info.message_id_.get_scheduled_server_message_id() ==
-          new_info.message_id_.get_scheduled_server_message_id()) {
-    // schedule date change
-    return false;
-  }
-  if (is_yet_unsent && old_top_thread_message_id == new_info.message_id_ && new_info.dialog_id_ == DialogId()) {
-    // move of reply to the top thread message after deletion of the replied message
-    return false;
-  }
-  return true;
-}
-
-vector<FileId> RepliedMessageInfo::get_file_ids(Td *td) const {
-  if (content_ != nullptr) {
-    return get_message_content_file_ids(content_.get(), td);
-  }
-  return {};
-}
-
-vector<UserId> RepliedMessageInfo::get_min_user_ids(Td *td) const {
-  vector<UserId> user_ids;
-  if (dialog_id_.get_type() == DialogType::User) {
-    user_ids.push_back(dialog_id_.get_user_id());
-  }
-  origin_.add_user_ids(user_ids);
-  // not supported server-side: quote_.add_user_ids(user_ids);
-  if (content_ != nullptr) {
-    append(user_ids, get_message_content_min_user_ids(td, content_.get()));
-  }
-  return user_ids;
-}
-
-vector<ChannelId> RepliedMessageInfo::get_min_channel_ids(Td *td) const {
-  vector<ChannelId> channel_ids;
-  if (dialog_id_.get_type() == DialogType::Channel) {
-    channel_ids.push_back(dialog_id_.get_channel_id());
-  }
-  origin_.add_channel_ids(channel_ids);
-  if (content_ != nullptr) {
-    append(channel_ids, get_message_content_min_channel_ids(td, content_.get()));
-  }
-  return channel_ids;
-}
-
-void RepliedMessageInfo::add_dependencies(Dependencies &dependencies, bool is_bot) const {
-  dependencies.add_dialog_and_dependencies(dialog_id_);
-  origin_.add_dependencies(dependencies);
-  quote_.add_dependencies(dependencies);
-  if (content_ != nullptr) {
-    add_message_content_dependencies(dependencies, content_.get(), is_bot);
-  }
-}
-
-td_api::object_ptr<td_api::messageReplyToMessage> RepliedMessageInfo::get_message_reply_to_message_object(
-    Td *td, DialogId dialog_id, MessageId message_id) const {
-  if (dialog_id_.is_valid()) {
-    dialog_id = dialog_id_;
-  } else {
-    CHECK(dialog_id.is_valid());
-  }
-  auto chat_id = td->dialog_manager_->get_chat_id_object(dialog_id, "messageReplyToMessage");
-  if (message_id_ == MessageId()) {
-    chat_id = 0;
-  }
-
-  td_api::object_ptr<td_api::MessageOrigin> origin;
-  if (!origin_.is_empty()) {
-    origin = origin_.get_message_origin_object(td);
-    CHECK(origin != nullptr);
-  }
-
-  td_api::object_ptr<td_api::MessageContent> content;
-  if (content_ != nullptr) {
-    content = get_message_content_object(content_.get(), td, dialog_id, message_id, false, dialog_id, 0, false, true,
-                                         -1, false, false);
-    switch (content->get_id()) {
-      case td_api::messageUnsupported::ID:
-        content = nullptr;
-        break;
-      case td_api::messageText::ID: {
-        const auto *message_text = static_cast<const td_api::messageText *>(content.get());
-        if (message_text->link_preview_ == nullptr && message_text->link_preview_options_ == nullptr) {
-          content = nullptr;
-        }
-        break;
-      }
-      default:
-        // nothing to do
-        break;
-    }
-  }
-
-  return td_api::make_object<td_api::messageReplyToMessage>(chat_id, message_id_.get(),
-                                                            quote_.get_text_quote_object(td->user_manager_.get()),
-                                                            std::move(origin), origin_date_, std::move(content));
-}
-
-MessageInputReplyTo RepliedMessageInfo::get_input_reply_to() const {
-  CHECK(!is_external());
-  if (message_id_.is_valid() || message_id_.is_valid_scheduled()) {
-    return MessageInputReplyTo(message_id_, dialog_id_, quote_.clone(true));
-  }
-  return {};
-}
-
-MessageId RepliedMessageInfo::get_same_chat_reply_to_message_id(bool ignore_external) const {
-  if (message_id_ == MessageId()) {
-    return {};
-  }
-  if (ignore_external && !origin_.is_empty()) {
-    return {};
-  }
-  return dialog_id_ == DialogId() ? message_id_ : MessageId();
-}
-
-MessageFullId RepliedMessageInfo::get_reply_message_full_id(DialogId owner_dialog_id, bool ignore_external) const {
-  if (message_id_ == MessageId()) {
-    return {};
-  }
-  if (ignore_external && !origin_.is_empty()) {
-    return {};
-  }
-  return {dialog_id_.is_valid() ? dialog_id_ : owner_dialog_id, message_id_};
-}
-
-void RepliedMessageInfo::register_content(Td *td) const {
-  if (content_ != nullptr) {
-    register_reply_message_content(td, content_.get());
-  }
-}
-
-void RepliedMessageInfo::unregister_content(Td *td) const {
-  if (content_ != nullptr) {
-    unregister_reply_message_content(td, content_.get());
-  }
-}
-
-bool operator==(const RepliedMessageInfo &lhs, const RepliedMessageInfo &rhs) {
-  if (!(lhs.message_id_ == rhs.message_id_ && lhs.dialog_id_ == rhs.dialog_id_ &&
-        lhs.origin_date_ == rhs.origin_date_ && lhs.origin_ == rhs.origin_ && lhs.quote_ == rhs.quote_)) {
-    return false;
-  }
-  bool need_update = false;
-  bool is_content_changed = false;
-  compare_message_contents(nullptr, lhs.content_.get(), rhs.content_.get(), is_content_changed, need_update);
-  if (need_update || is_content_changed) {
-    return false;
-  }
-  return true;
-}
-
-bool operator!=(const RepliedMessageInfo &lhs, const RepliedMessageInfo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const RepliedMessageInfo &info) {
-  string_builder << "reply to " << info.message_id_;
-  if (info.dialog_id_ != DialogId()) {
-    string_builder << " in " << info.dialog_id_;
-  }
-  if (info.origin_date_ != 0) {
-    string_builder << " sent at " << info.origin_date_ << " by " << info.origin_;
-  }
-  string_builder << info.quote_;
-  if (info.content_ != nullptr) {
-    string_builder << " and content of the type " << info.content_->get_type();
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RepliedMessageInfo.h b/third-party/td/td/td/telegram/RepliedMessageInfo.h
deleted file mode 100644
index 1d9d37b203..0000000000
--- a/third-party/td/td/td/telegram/RepliedMessageInfo.h
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageInputReplyTo.h"
-#include "td/telegram/MessageOrigin.h"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-#include <functional>
-
-namespace td {
-
-class Dependencies;
-
-class Td;
-
-class RepliedMessageInfo {
-  MessageId message_id_;
-  DialogId dialog_id_;                  // for replies from another known chats
-  int32 origin_date_ = 0;               // for replies in other chats
-  MessageOrigin origin_;                // for replies in other chats
-  unique_ptr<MessageContent> content_;  // for replies in other chats
-  MessageQuote quote_;
-
-  friend bool operator==(const RepliedMessageInfo &lhs, const RepliedMessageInfo &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const RepliedMessageInfo &info);
-
- public:
-  RepliedMessageInfo() = default;
-  RepliedMessageInfo(const RepliedMessageInfo &) = delete;
-  RepliedMessageInfo &operator=(const RepliedMessageInfo &) = delete;
-  RepliedMessageInfo(RepliedMessageInfo &&) = default;
-  RepliedMessageInfo &operator=(RepliedMessageInfo &&) = default;
-  ~RepliedMessageInfo();
-
-  static RepliedMessageInfo legacy(MessageId reply_to_message_id, DialogId reply_in_dialog_id = DialogId()) {
-    RepliedMessageInfo result;
-    result.message_id_ = reply_to_message_id;
-    result.dialog_id_ = reply_in_dialog_id;
-    return result;
-  }
-
-  RepliedMessageInfo(Td *td, tl_object_ptr<telegram_api::messageReplyHeader> &&reply_header, DialogId dialog_id,
-                     MessageId message_id, int32 date);
-
-  RepliedMessageInfo(Td *td, const MessageInputReplyTo &input_reply_to);
-
-  RepliedMessageInfo clone(Td *td) const;
-
-  bool is_empty() const {
-    return message_id_ == MessageId() && origin_.is_empty();
-  }
-
-  bool is_external() const {
-    return origin_date_ != 0;
-  }
-
-  bool need_reget() const;
-
-  static bool need_reply_changed_warning(
-      const Td *td, const RepliedMessageInfo &old_info, const RepliedMessageInfo &new_info,
-      MessageId old_top_thread_message_id, bool is_yet_unsent,
-      std::function<bool(const RepliedMessageInfo &info)> is_reply_to_deleted_message);
-
-  vector<FileId> get_file_ids(Td *td) const;
-
-  vector<UserId> get_min_user_ids(Td *td) const;
-
-  vector<ChannelId> get_min_channel_ids(Td *td) const;
-
-  void add_dependencies(Dependencies &dependencies, bool is_bot) const;
-
-  td_api::object_ptr<td_api::messageReplyToMessage> get_message_reply_to_message_object(Td *td, DialogId dialog_id,
-                                                                                        MessageId message_id) const;
-
-  MessageInputReplyTo get_input_reply_to() const;
-
-  void set_message_id(MessageId new_message_id) {
-    CHECK(message_id_.is_valid() || message_id_.is_valid_scheduled());
-    message_id_ = new_message_id;
-  }
-
-  MessageId get_same_chat_reply_to_message_id(bool ignore_external) const;
-
-  MessageFullId get_reply_message_full_id(DialogId owner_dialog_id, bool ignore_external) const;
-
-  void register_content(Td *td) const;
-
-  void unregister_content(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const RepliedMessageInfo &lhs, const RepliedMessageInfo &rhs);
-
-bool operator!=(const RepliedMessageInfo &lhs, const RepliedMessageInfo &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const RepliedMessageInfo &info);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RepliedMessageInfo.hpp b/third-party/td/td/td/telegram/RepliedMessageInfo.hpp
deleted file mode 100644
index 61b12cb29c..0000000000
--- a/third-party/td/td/td/telegram/RepliedMessageInfo.hpp
+++ /dev/null
@@ -1,110 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/RepliedMessageInfo.h"
-
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageEntity.hpp"
-#include "td/telegram/MessageOrigin.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void RepliedMessageInfo::store(StorerT &storer) const {
-  bool has_message_id = message_id_.is_valid() || message_id_.is_valid_scheduled();
-  bool has_dialog_id = dialog_id_.is_valid();
-  bool has_origin_date = origin_date_ != 0;
-  bool has_origin = !origin_.is_empty();
-  bool has_content = content_ != nullptr;
-  bool has_quote = !quote_.is_empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_message_id);
-  STORE_FLAG(has_dialog_id);
-  STORE_FLAG(has_origin_date);
-  STORE_FLAG(has_origin);
-  STORE_FLAG(false);
-  STORE_FLAG(false);
-  STORE_FLAG(has_content);
-  STORE_FLAG(false);
-  STORE_FLAG(has_quote);
-  END_STORE_FLAGS();
-  if (has_message_id) {
-    td::store(message_id_, storer);
-  }
-  if (has_dialog_id) {
-    td::store(dialog_id_, storer);
-  }
-  if (has_origin_date) {
-    td::store(origin_date_, storer);
-  }
-  if (has_origin) {
-    td::store(origin_, storer);
-  }
-  if (has_content) {
-    store_message_content(content_.get(), storer);
-  }
-  if (has_quote) {
-    td::store(quote_, storer);
-  }
-}
-
-template <class ParserT>
-void RepliedMessageInfo::parse(ParserT &parser) {
-  bool has_message_id;
-  bool has_dialog_id;
-  bool has_origin_date;
-  bool has_origin;
-  bool has_quote_legacy;
-  bool is_quote_manual_legacy;
-  bool has_content;
-  bool has_quote_position_legacy;
-  bool has_quote;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_message_id);
-  PARSE_FLAG(has_dialog_id);
-  PARSE_FLAG(has_origin_date);
-  PARSE_FLAG(has_origin);
-  PARSE_FLAG(has_quote_legacy);
-  PARSE_FLAG(is_quote_manual_legacy);
-  PARSE_FLAG(has_content);
-  PARSE_FLAG(has_quote_position_legacy);
-  PARSE_FLAG(has_quote);
-  END_PARSE_FLAGS();
-  if (has_message_id) {
-    td::parse(message_id_, parser);
-  }
-  if (has_dialog_id) {
-    td::parse(dialog_id_, parser);
-  }
-  if (has_origin_date) {
-    td::parse(origin_date_, parser);
-  }
-  if (has_origin) {
-    td::parse(origin_, parser);
-  }
-  FormattedText quote_legacy;
-  if (has_quote_legacy) {
-    td::parse(quote_legacy, parser);
-  }
-  if (has_content) {
-    parse_message_content(content_, parser);
-  }
-  int32 quote_position_legacy = 0;
-  if (has_quote_position_legacy) {
-    td::parse(quote_position_legacy, parser);
-  }
-  if (has_quote) {
-    td::parse(quote_, parser);
-  } else if (has_quote_legacy) {
-    quote_ = MessageQuote(std::move(quote_legacy), quote_position_legacy, is_quote_manual_legacy);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReplyMarkup.cpp b/third-party/td/td/td/telegram/ReplyMarkup.cpp
deleted file mode 100644
index d5129a238b..0000000000
--- a/third-party/td/td/td/telegram/ReplyMarkup.cpp
+++ /dev/null
@@ -1,1179 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReplyMarkup.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/TargetDialogTypes.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <limits>
-
-namespace td {
-
-static bool operator==(const KeyboardButton &lhs, const KeyboardButton &rhs) {
-  return lhs.type == rhs.type && lhs.text == rhs.text && lhs.url == rhs.url;
-}
-
-static StringBuilder &operator<<(StringBuilder &string_builder, const KeyboardButton &keyboard_button) {
-  string_builder << "Button[";
-  switch (keyboard_button.type) {
-    case KeyboardButton::Type::Text:
-      string_builder << "Text";
-      break;
-    case KeyboardButton::Type::RequestPhoneNumber:
-      string_builder << "RequestPhoneNumber";
-      break;
-    case KeyboardButton::Type::RequestLocation:
-      string_builder << "RequestLocation";
-      break;
-    case KeyboardButton::Type::RequestPoll:
-      string_builder << "RequestPoll";
-      break;
-    case KeyboardButton::Type::RequestPollQuiz:
-      string_builder << "RequestPollQuiz";
-      break;
-    case KeyboardButton::Type::RequestPollRegular:
-      string_builder << "RequestPollRegular";
-      break;
-    case KeyboardButton::Type::WebView:
-      string_builder << "WebApp";
-      break;
-    case KeyboardButton::Type::RequestDialog:
-      string_builder << "RequestChat";
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return string_builder << ", " << keyboard_button.text << "]";
-}
-
-static bool operator==(const InlineKeyboardButton &lhs, const InlineKeyboardButton &rhs) {
-  return lhs.type == rhs.type && lhs.text == rhs.text && lhs.data == rhs.data && lhs.id == rhs.id;
-}
-
-static StringBuilder &operator<<(StringBuilder &string_builder, const InlineKeyboardButton &keyboard_button) {
-  string_builder << "Button[";
-  switch (keyboard_button.type) {
-    case InlineKeyboardButton::Type::Url:
-      string_builder << "Url";
-      break;
-    case InlineKeyboardButton::Type::Callback:
-      string_builder << "Callback";
-      break;
-    case InlineKeyboardButton::Type::CallbackGame:
-      string_builder << "CallbackGame";
-      break;
-    case InlineKeyboardButton::Type::SwitchInline:
-      string_builder << "SwitchInline, target chats = " << TargetDialogTypes(keyboard_button.id);
-      break;
-    case InlineKeyboardButton::Type::SwitchInlineCurrentDialog:
-      string_builder << "SwitchInlineCurrentChat";
-      break;
-    case InlineKeyboardButton::Type::Buy:
-      string_builder << "Buy";
-      break;
-    case InlineKeyboardButton::Type::UrlAuth:
-      string_builder << "UrlAuth, ID = " << keyboard_button.id;
-      break;
-    case InlineKeyboardButton::Type::CallbackWithPassword:
-      string_builder << "CallbackWithPassword";
-      break;
-    case InlineKeyboardButton::Type::User:
-      string_builder << "User " << keyboard_button.user_id.get();
-      break;
-    case InlineKeyboardButton::Type::WebView:
-      string_builder << "WebView";
-      break;
-    case InlineKeyboardButton::Type::Copy:
-      string_builder << "Copy";
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return string_builder << ", text = " << keyboard_button.text << ", " << keyboard_button.data << "]";
-}
-
-bool operator==(const ReplyMarkup &lhs, const ReplyMarkup &rhs) {
-  if (lhs.type != rhs.type) {
-    return false;
-  }
-  if (lhs.type == ReplyMarkup::Type::InlineKeyboard) {
-    return lhs.inline_keyboard == rhs.inline_keyboard;
-  }
-
-  if (lhs.is_personal != rhs.is_personal) {
-    return false;
-  }
-  if (lhs.placeholder != rhs.placeholder) {
-    return false;
-  }
-  if (lhs.type != ReplyMarkup::Type::ShowKeyboard) {
-    return true;
-  }
-  return lhs.is_persistent == rhs.is_persistent && lhs.need_resize_keyboard == rhs.need_resize_keyboard &&
-         lhs.is_one_time_keyboard == rhs.is_one_time_keyboard && lhs.keyboard == rhs.keyboard;
-}
-
-bool operator!=(const ReplyMarkup &lhs, const ReplyMarkup &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &ReplyMarkup::print(StringBuilder &string_builder) const {
-  string_builder << "ReplyMarkup[";
-  switch (type) {
-    case ReplyMarkup::Type::InlineKeyboard:
-      string_builder << "InlineKeyboard";
-      break;
-    case ReplyMarkup::Type::ShowKeyboard:
-      string_builder << "ShowKeyboard";
-      break;
-    case ReplyMarkup::Type::RemoveKeyboard:
-      string_builder << "RemoveKeyboard";
-      break;
-    case ReplyMarkup::Type::ForceReply:
-      string_builder << "ForceReply";
-      break;
-    default:
-      UNREACHABLE();
-  }
-  if (is_personal) {
-    string_builder << ", personal";
-  }
-  if (!placeholder.empty()) {
-    string_builder << ", placeholder \"" << placeholder << '"';
-  }
-
-  if (type == ReplyMarkup::Type::ShowKeyboard) {
-    if (is_persistent) {
-      string_builder << ", persistent";
-    }
-    if (need_resize_keyboard) {
-      string_builder << ", need resize";
-    }
-    if (is_one_time_keyboard) {
-      string_builder << ", one time";
-    }
-  }
-  if (type == ReplyMarkup::Type::InlineKeyboard) {
-    for (auto &row : inline_keyboard) {
-      string_builder << ", " << row;
-    }
-  }
-  if (type == ReplyMarkup::Type::ShowKeyboard) {
-    for (auto &row : keyboard) {
-      string_builder << ", " << row;
-    }
-  }
-
-  string_builder << "]";
-  return string_builder;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReplyMarkup &reply_markup) {
-  return reply_markup.print(string_builder);
-}
-
-static KeyboardButton get_keyboard_button(tl_object_ptr<telegram_api::KeyboardButton> &&keyboard_button_ptr) {
-  CHECK(keyboard_button_ptr != nullptr);
-
-  KeyboardButton button;
-  switch (keyboard_button_ptr->get_id()) {
-    case telegram_api::keyboardButton::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButton>(keyboard_button_ptr);
-      button.type = KeyboardButton::Type::Text;
-      button.text = std::move(keyboard_button->text_);
-      break;
-    }
-    case telegram_api::keyboardButtonRequestPhone::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonRequestPhone>(keyboard_button_ptr);
-      button.type = KeyboardButton::Type::RequestPhoneNumber;
-      button.text = std::move(keyboard_button->text_);
-      break;
-    }
-    case telegram_api::keyboardButtonRequestGeoLocation::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonRequestGeoLocation>(keyboard_button_ptr);
-      button.type = KeyboardButton::Type::RequestLocation;
-      button.text = std::move(keyboard_button->text_);
-      break;
-    }
-    case telegram_api::keyboardButtonRequestPoll::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonRequestPoll>(keyboard_button_ptr);
-      if (keyboard_button->flags_ & telegram_api::keyboardButtonRequestPoll::QUIZ_MASK) {
-        if (keyboard_button->quiz_) {
-          button.type = KeyboardButton::Type::RequestPollQuiz;
-        } else {
-          button.type = KeyboardButton::Type::RequestPollRegular;
-        }
-      } else {
-        button.type = KeyboardButton::Type::RequestPoll;
-      }
-      button.text = std::move(keyboard_button->text_);
-      break;
-    }
-    case telegram_api::keyboardButtonSimpleWebView::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonSimpleWebView>(keyboard_button_ptr);
-      auto r_url = LinkManager::check_link(keyboard_button->url_);
-      if (r_url.is_error()) {
-        LOG(ERROR) << "Keyboard Web App " << r_url.error().message();
-        break;
-      }
-
-      button.type = KeyboardButton::Type::WebView;
-      button.text = std::move(keyboard_button->text_);
-      button.url = r_url.move_as_ok();
-      break;
-    }
-    case telegram_api::keyboardButtonRequestPeer::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonRequestPeer>(keyboard_button_ptr);
-      button.type = KeyboardButton::Type::RequestDialog;
-      button.text = std::move(keyboard_button->text_);
-      button.requested_dialog_type = td::make_unique<RequestedDialogType>(
-          std::move(keyboard_button->peer_type_), keyboard_button->button_id_, keyboard_button->max_quantity_);
-      break;
-    }
-    default:
-      LOG(ERROR) << "Unsupported keyboard button: " << to_string(keyboard_button_ptr);
-  }
-  return button;
-}
-
-static InlineKeyboardButton get_inline_keyboard_button(
-    tl_object_ptr<telegram_api::KeyboardButton> &&keyboard_button_ptr) {
-  CHECK(keyboard_button_ptr != nullptr);
-
-  InlineKeyboardButton button;
-  switch (keyboard_button_ptr->get_id()) {
-    case telegram_api::keyboardButtonUrl::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonUrl>(keyboard_button_ptr);
-      auto r_url = LinkManager::check_link(keyboard_button->url_);
-      if (r_url.is_error()) {
-        LOG(ERROR) << "Inline keyboard " << r_url.error().message();
-        break;
-      }
-      button.type = InlineKeyboardButton::Type::Url;
-      button.text = std::move(keyboard_button->text_);
-      button.data = r_url.move_as_ok();
-      break;
-    }
-    case telegram_api::keyboardButtonCallback::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonCallback>(keyboard_button_ptr);
-      button.type = keyboard_button->requires_password_ ? InlineKeyboardButton::Type::CallbackWithPassword
-                                                        : InlineKeyboardButton::Type::Callback;
-      button.text = std::move(keyboard_button->text_);
-      button.data = keyboard_button->data_.as_slice().str();
-      break;
-    }
-    case telegram_api::keyboardButtonGame::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonGame>(keyboard_button_ptr);
-      button.type = InlineKeyboardButton::Type::CallbackGame;
-      button.text = std::move(keyboard_button->text_);
-      break;
-    }
-    case telegram_api::keyboardButtonSwitchInline::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonSwitchInline>(keyboard_button_ptr);
-      button.type = keyboard_button->same_peer_ ? InlineKeyboardButton::Type::SwitchInlineCurrentDialog
-                                                : InlineKeyboardButton::Type::SwitchInline;
-      button.text = std::move(keyboard_button->text_);
-      button.data = std::move(keyboard_button->query_);
-      if (!keyboard_button->same_peer_) {
-        button.id = TargetDialogTypes(keyboard_button->peer_types_).get_mask();
-      }
-      break;
-    }
-    case telegram_api::keyboardButtonBuy::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonBuy>(keyboard_button_ptr);
-      button.type = InlineKeyboardButton::Type::Buy;
-      button.text = std::move(keyboard_button->text_);
-      break;
-    }
-    case telegram_api::keyboardButtonUrlAuth::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonUrlAuth>(keyboard_button_ptr);
-      auto r_url = LinkManager::check_link(keyboard_button->url_);
-      if (r_url.is_error()) {
-        LOG(ERROR) << "Inline keyboard Login " << r_url.error().message();
-        break;
-      }
-      button.type = InlineKeyboardButton::Type::UrlAuth;
-      button.id = keyboard_button->button_id_;
-      button.text = std::move(keyboard_button->text_);
-      button.forward_text = std::move(keyboard_button->fwd_text_);
-      button.data = r_url.move_as_ok();
-      break;
-    }
-    case telegram_api::keyboardButtonUserProfile::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonUserProfile>(keyboard_button_ptr);
-      auto user_id = UserId(keyboard_button->user_id_);
-      if (!user_id.is_valid()) {
-        LOG(ERROR) << "Receive " << user_id << " in inline keyboard";
-        break;
-      }
-      button.type = InlineKeyboardButton::Type::User;
-      button.text = std::move(keyboard_button->text_);
-      button.user_id = user_id;
-      break;
-    }
-    case telegram_api::keyboardButtonWebView::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonWebView>(keyboard_button_ptr);
-      auto r_url = LinkManager::check_link(keyboard_button->url_);
-      if (r_url.is_error()) {
-        LOG(ERROR) << "Inline keyboard Web App " << r_url.error().message();
-        break;
-      }
-      button.type = InlineKeyboardButton::Type::WebView;
-      button.text = std::move(keyboard_button->text_);
-      button.data = r_url.move_as_ok();
-      break;
-    }
-    case telegram_api::keyboardButtonCopy::ID: {
-      auto keyboard_button = move_tl_object_as<telegram_api::keyboardButtonCopy>(keyboard_button_ptr);
-      button.type = InlineKeyboardButton::Type::Copy;
-      button.text = std::move(keyboard_button->text_);
-      button.data = std::move(keyboard_button->copy_text_);
-      break;
-    }
-    default:
-      LOG(ERROR) << "Unsupported inline keyboard button: " << to_string(keyboard_button_ptr);
-  }
-  return button;
-}
-
-unique_ptr<ReplyMarkup> get_reply_markup(tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup_ptr, bool is_bot,
-                                         bool only_inline_keyboard, bool message_contains_mention) {
-  if (reply_markup_ptr == nullptr) {
-    return nullptr;
-  }
-
-  auto reply_markup = make_unique<ReplyMarkup>();
-  auto constructor_id = reply_markup_ptr->get_id();
-  if (only_inline_keyboard && constructor_id != telegram_api::replyInlineMarkup::ID) {
-    LOG(ERROR) << "Inline keyboard expected";
-    return nullptr;
-  }
-  switch (constructor_id) {
-    case telegram_api::replyInlineMarkup::ID: {
-      auto inline_markup = move_tl_object_as<telegram_api::replyInlineMarkup>(reply_markup_ptr);
-      reply_markup->type = ReplyMarkup::Type::InlineKeyboard;
-      reply_markup->inline_keyboard.reserve(inline_markup->rows_.size());
-      for (auto &row : inline_markup->rows_) {
-        vector<InlineKeyboardButton> buttons;
-        buttons.reserve(row->buttons_.size());
-        for (auto &button : row->buttons_) {
-          buttons.push_back(get_inline_keyboard_button(std::move(button)));
-          if (buttons.back().text.empty()) {
-            buttons.pop_back();
-          }
-        }
-        if (!buttons.empty()) {
-          reply_markup->inline_keyboard.push_back(std::move(buttons));
-        }
-      }
-      if (reply_markup->inline_keyboard.empty()) {
-        return nullptr;
-      }
-      break;
-    }
-    case telegram_api::replyKeyboardMarkup::ID: {
-      auto keyboard_markup = move_tl_object_as<telegram_api::replyKeyboardMarkup>(reply_markup_ptr);
-      reply_markup->type = ReplyMarkup::Type::ShowKeyboard;
-      reply_markup->is_persistent = keyboard_markup->persistent_;
-      reply_markup->need_resize_keyboard = keyboard_markup->resize_;
-      reply_markup->is_one_time_keyboard = keyboard_markup->single_use_;
-      reply_markup->is_personal = keyboard_markup->selective_;
-      reply_markup->placeholder = std::move(keyboard_markup->placeholder_);
-      reply_markup->keyboard.reserve(keyboard_markup->rows_.size());
-      for (auto &row : keyboard_markup->rows_) {
-        vector<KeyboardButton> buttons;
-        buttons.reserve(row->buttons_.size());
-        for (auto &button : row->buttons_) {
-          buttons.push_back(get_keyboard_button(std::move(button)));
-          if (buttons.back().text.empty()) {
-            buttons.pop_back();
-          }
-        }
-        if (!buttons.empty()) {
-          reply_markup->keyboard.push_back(std::move(buttons));
-        }
-      }
-      if (reply_markup->keyboard.empty()) {
-        return nullptr;
-      }
-      break;
-    }
-    case telegram_api::replyKeyboardHide::ID: {
-      auto hide_keyboard_markup = move_tl_object_as<telegram_api::replyKeyboardHide>(reply_markup_ptr);
-      reply_markup->type = ReplyMarkup::Type::RemoveKeyboard;
-      reply_markup->is_personal = hide_keyboard_markup->selective_;
-      break;
-    }
-    case telegram_api::replyKeyboardForceReply::ID: {
-      auto force_reply_markup = move_tl_object_as<telegram_api::replyKeyboardForceReply>(reply_markup_ptr);
-      reply_markup->type = ReplyMarkup::Type::ForceReply;
-      reply_markup->is_personal = force_reply_markup->selective_;
-      reply_markup->placeholder = std::move(force_reply_markup->placeholder_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-
-  if (!is_bot && reply_markup->type != ReplyMarkup::Type::InlineKeyboard) {
-    // incoming keyboard
-    if (reply_markup->is_personal) {
-      reply_markup->is_personal = message_contains_mention;
-    } else {
-      reply_markup->is_personal = true;
-    }
-  }
-
-  return reply_markup;
-}
-
-static Result<KeyboardButton> get_keyboard_button(tl_object_ptr<td_api::keyboardButton> &&button,
-                                                  bool request_buttons_allowed) {
-  CHECK(button != nullptr);
-
-  if (!clean_input_string(button->text_)) {
-    return Status::Error(400, "Keyboard button text must be encoded in UTF-8");
-  }
-  if (button->text_.empty()) {
-    return Status::Error(400, "Keyboard button text must be non-empty");
-  }
-
-  KeyboardButton current_button;
-  current_button.text = std::move(button->text_);
-
-  switch (button->type_ == nullptr ? td_api::keyboardButtonTypeText::ID : button->type_->get_id()) {
-    case td_api::keyboardButtonTypeText::ID:
-      current_button.type = KeyboardButton::Type::Text;
-      break;
-    case td_api::keyboardButtonTypeRequestPhoneNumber::ID:
-      if (!request_buttons_allowed) {
-        return Status::Error(400, "Phone number can be requested in private chats only");
-      }
-      current_button.type = KeyboardButton::Type::RequestPhoneNumber;
-      break;
-    case td_api::keyboardButtonTypeRequestLocation::ID:
-      if (!request_buttons_allowed) {
-        return Status::Error(400, "Location can be requested in private chats only");
-      }
-      current_button.type = KeyboardButton::Type::RequestLocation;
-      break;
-    case td_api::keyboardButtonTypeRequestPoll::ID: {
-      if (!request_buttons_allowed) {
-        return Status::Error(400, "Poll can be requested in private chats only");
-      }
-      auto *request_poll = static_cast<const td_api::keyboardButtonTypeRequestPoll *>(button->type_.get());
-      if (request_poll->force_quiz_ && request_poll->force_regular_) {
-        return Status::Error(400, "Can't force quiz mode and regular poll simultaneously");
-      }
-      if (request_poll->force_quiz_) {
-        current_button.type = KeyboardButton::Type::RequestPollQuiz;
-      } else if (request_poll->force_regular_) {
-        current_button.type = KeyboardButton::Type::RequestPollRegular;
-      } else {
-        current_button.type = KeyboardButton::Type::RequestPoll;
-      }
-      break;
-    }
-    case td_api::keyboardButtonTypeWebApp::ID: {
-      if (!request_buttons_allowed) {
-        return Status::Error(400, "Web App buttons can be used in private chats only");
-      }
-
-      auto button_type = move_tl_object_as<td_api::keyboardButtonTypeWebApp>(button->type_);
-      auto user_id = LinkManager::get_link_user_id(button_type->url_);
-      if (user_id.is_valid()) {
-        return Status::Error(400, "Link to a user can't be used in Web App URL buttons");
-      }
-      auto r_url = LinkManager::check_link(button_type->url_, true, !G()->is_test_dc());
-      if (r_url.is_error()) {
-        return Status::Error(400, PSLICE() << "Keyboard button Web App " << r_url.error().message());
-      }
-      current_button.type = KeyboardButton::Type::WebView;
-      current_button.url = std::move(button_type->url_);
-      break;
-    }
-    case td_api::keyboardButtonTypeRequestUsers::ID: {
-      if (!request_buttons_allowed) {
-        return Status::Error(400, "Users can be requested in private chats only");
-      }
-      auto button_type = move_tl_object_as<td_api::keyboardButtonTypeRequestUsers>(button->type_);
-      current_button.type = KeyboardButton::Type::RequestDialog;
-      current_button.requested_dialog_type = td::make_unique<RequestedDialogType>(std::move(button_type));
-      break;
-    }
-    case td_api::keyboardButtonTypeRequestChat::ID: {
-      if (!request_buttons_allowed) {
-        return Status::Error(400, "Chats can be requested in private chats only");
-      }
-      auto button_type = move_tl_object_as<td_api::keyboardButtonTypeRequestChat>(button->type_);
-      current_button.type = KeyboardButton::Type::RequestDialog;
-      current_button.requested_dialog_type = td::make_unique<RequestedDialogType>(std::move(button_type));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return std::move(current_button);
-}
-
-static Result<InlineKeyboardButton> get_inline_keyboard_button(tl_object_ptr<td_api::inlineKeyboardButton> &&button,
-                                                               bool switch_inline_buttons_allowed) {
-  CHECK(button != nullptr);
-  if (!clean_input_string(button->text_)) {
-    return Status::Error(400, "Inline keyboard button text must be encoded in UTF-8");
-  }
-  if (button->text_.empty()) {
-    return Status::Error(400, "Inline keyboard button text must be non-empty");
-  }
-  if (button->type_ == nullptr) {
-    return Status::Error(400, "Inline keyboard button type must be non-empty");
-  }
-
-  InlineKeyboardButton current_button;
-  current_button.text = std::move(button->text_);
-
-  switch (button->type_->get_id()) {
-    case td_api::inlineKeyboardButtonTypeUrl::ID: {
-      auto button_type = move_tl_object_as<td_api::inlineKeyboardButtonTypeUrl>(button->type_);
-      auto user_id = LinkManager::get_link_user_id(button_type->url_);
-      if (user_id.is_valid()) {
-        current_button.type = InlineKeyboardButton::Type::User;
-        current_button.user_id = user_id;
-        break;
-      }
-      auto r_url = LinkManager::check_link(button_type->url_);
-      if (r_url.is_error()) {
-        return Status::Error(400, PSLICE() << "Inline keyboard button " << r_url.error().message());
-      }
-      current_button.type = InlineKeyboardButton::Type::Url;
-      current_button.data = r_url.move_as_ok();
-      if (!clean_input_string(current_button.data)) {
-        return Status::Error(400, "Inline keyboard button URL must be encoded in UTF-8");
-      }
-      break;
-    }
-    case td_api::inlineKeyboardButtonTypeCallback::ID: {
-      auto button_type = move_tl_object_as<td_api::inlineKeyboardButtonTypeCallback>(button->type_);
-      current_button.type = InlineKeyboardButton::Type::Callback;
-      current_button.data = std::move(button_type->data_);
-      break;
-    }
-    case td_api::inlineKeyboardButtonTypeCallbackGame::ID:
-      current_button.type = InlineKeyboardButton::Type::CallbackGame;
-      break;
-    case td_api::inlineKeyboardButtonTypeCallbackWithPassword::ID:
-      return Status::Error(400, "Can't use CallbackWithPassword inline button");
-    case td_api::inlineKeyboardButtonTypeSwitchInline::ID: {
-      auto button_type = move_tl_object_as<td_api::inlineKeyboardButtonTypeSwitchInline>(button->type_);
-      if (button_type->target_chat_ == nullptr) {
-        return Status::Error(400, "Target chat must be non-empty");
-      }
-      switch (button_type->target_chat_->get_id()) {
-        case td_api::targetChatChosen::ID: {
-          TRY_RESULT(types,
-                     TargetDialogTypes::get_target_dialog_types(
-                         static_cast<const td_api::targetChatChosen *>(button_type->target_chat_.get())->types_));
-          current_button.id = types.get_mask();
-          current_button.type = InlineKeyboardButton::Type::SwitchInline;
-          break;
-        }
-        case td_api::targetChatCurrent::ID:
-          current_button.type = InlineKeyboardButton::Type::SwitchInlineCurrentDialog;
-          break;
-        case td_api::targetChatInternalLink::ID:
-          return Status::Error(400, "Unsupported target chat specified");
-        default:
-          UNREACHABLE();
-      }
-      if (!switch_inline_buttons_allowed) {
-        const char *button_name = current_button.type == InlineKeyboardButton::Type::SwitchInline
-                                      ? "switch_inline_query"
-                                      : "switch_inline_query_current_chat";
-        return Status::Error(400, PSLICE() << "Can't use " << button_name
-                                           << " button in a channel chat, because users will not be able to use the "
-                                              "button without knowing bot's username");
-      }
-
-      current_button.data = std::move(button_type->query_);
-      if (!clean_input_string(current_button.data)) {
-        return Status::Error(400, "Inline keyboard button switch inline query must be encoded in UTF-8");
-      }
-      break;
-    }
-    case td_api::inlineKeyboardButtonTypeBuy::ID:
-      current_button.type = InlineKeyboardButton::Type::Buy;
-      break;
-    case td_api::inlineKeyboardButtonTypeLoginUrl::ID: {
-      auto button_type = td_api::move_object_as<td_api::inlineKeyboardButtonTypeLoginUrl>(button->type_);
-      auto user_id = LinkManager::get_link_user_id(button_type->url_);
-      if (user_id.is_valid()) {
-        return Status::Error(400, "Link to a user can't be used in login URL buttons");
-      }
-      auto r_url = LinkManager::check_link(button_type->url_, true, !G()->is_test_dc());
-      if (r_url.is_error()) {
-        return Status::Error(400, PSLICE() << "Inline keyboard button login " << r_url.error().message());
-      }
-      current_button.type = InlineKeyboardButton::Type::UrlAuth;
-      current_button.data = r_url.move_as_ok();
-      current_button.forward_text = std::move(button_type->forward_text_);
-      if (!clean_input_string(current_button.data)) {
-        return Status::Error(400, "Inline keyboard button login URL must be encoded in UTF-8");
-      }
-      if (!clean_input_string(current_button.forward_text)) {
-        return Status::Error(400, "Inline keyboard button forward text must be encoded in UTF-8");
-      }
-      current_button.id = button_type->id_;
-      if (current_button.id == std::numeric_limits<int64>::min() ||
-          !UserId(current_button.id >= 0 ? current_button.id : -current_button.id).is_valid()) {
-        return Status::Error(400, "Invalid bot_user_id specified");
-      }
-      break;
-    }
-    case td_api::inlineKeyboardButtonTypeUser::ID: {
-      auto button_type = td_api::move_object_as<td_api::inlineKeyboardButtonTypeUser>(button->type_);
-      current_button.type = InlineKeyboardButton::Type::User;
-      current_button.user_id = UserId(button_type->user_id_);
-      if (!current_button.user_id.is_valid()) {
-        return Status::Error(400, "Invalid user_id specified");
-      }
-      break;
-    }
-    case td_api::inlineKeyboardButtonTypeWebApp::ID: {
-      auto button_type = move_tl_object_as<td_api::inlineKeyboardButtonTypeWebApp>(button->type_);
-      auto user_id = LinkManager::get_link_user_id(button_type->url_);
-      if (user_id.is_valid()) {
-        return Status::Error(400, "Link to a user can't be used in Web App URL buttons");
-      }
-      auto r_url = LinkManager::check_link(button_type->url_, true, !G()->is_test_dc());
-      if (r_url.is_error()) {
-        return Status::Error(400, PSLICE() << "Inline keyboard button Web App " << r_url.error().message());
-      }
-      current_button.type = InlineKeyboardButton::Type::WebView;
-      current_button.data = r_url.move_as_ok();
-      if (!clean_input_string(current_button.data)) {
-        return Status::Error(400, "Inline keyboard button Web App URL must be encoded in UTF-8");
-      }
-      break;
-    }
-    case td_api::inlineKeyboardButtonTypeCopyText::ID: {
-      auto button_type = move_tl_object_as<td_api::inlineKeyboardButtonTypeCopyText>(button->type_);
-      current_button.type = InlineKeyboardButton::Type::Copy;
-      current_button.data = std::move(button_type->text_);
-      if (!clean_input_string(current_button.data)) {
-        return Status::Error(400, "Inline keyboard button copied text must be encoded in UTF-8");
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  return std::move(current_button);
-}
-
-Result<unique_ptr<ReplyMarkup>> get_reply_markup(td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup_ptr,
-                                                 bool is_bot, bool only_inline_keyboard, bool request_buttons_allowed,
-                                                 bool switch_inline_buttons_allowed) {
-  CHECK(!only_inline_keyboard || !request_buttons_allowed);
-  if (reply_markup_ptr == nullptr || !is_bot) {
-    return nullptr;
-  }
-
-  auto reply_markup = make_unique<ReplyMarkup>();
-  auto constructor_id = reply_markup_ptr->get_id();
-  if (only_inline_keyboard && constructor_id != td_api::replyMarkupInlineKeyboard::ID) {
-    return Status::Error(400, "Inline keyboard expected");
-  }
-
-  switch (constructor_id) {
-    case td_api::replyMarkupShowKeyboard::ID: {
-      auto show_keyboard_markup = move_tl_object_as<td_api::replyMarkupShowKeyboard>(reply_markup_ptr);
-      reply_markup->type = ReplyMarkup::Type::ShowKeyboard;
-      reply_markup->is_persistent = show_keyboard_markup->is_persistent_;
-      reply_markup->need_resize_keyboard = show_keyboard_markup->resize_keyboard_;
-      reply_markup->is_one_time_keyboard = show_keyboard_markup->one_time_;
-      reply_markup->is_personal = show_keyboard_markup->is_personal_;
-      reply_markup->placeholder = std::move(show_keyboard_markup->input_field_placeholder_);
-
-      reply_markup->keyboard.reserve(show_keyboard_markup->rows_.size());
-      int32 total_button_count = 0;
-      for (auto &row : show_keyboard_markup->rows_) {
-        vector<KeyboardButton> row_buttons;
-        row_buttons.reserve(row.size());
-
-        int32 row_button_count = 0;
-        for (auto &button : row) {
-          if (button->text_.empty()) {
-            continue;
-          }
-
-          TRY_RESULT(current_button, get_keyboard_button(std::move(button), request_buttons_allowed));
-
-          row_buttons.push_back(std::move(current_button));
-          row_button_count++;
-          total_button_count++;
-          if (row_button_count >= 12 || total_button_count >= 300) {
-            break;
-          }
-        }
-        if (!row_buttons.empty()) {
-          reply_markup->keyboard.push_back(std::move(row_buttons));
-        }
-        if (total_button_count >= 300) {
-          break;
-        }
-      }
-      if (reply_markup->keyboard.empty()) {
-        return nullptr;
-      }
-      break;
-    }
-    case td_api::replyMarkupInlineKeyboard::ID: {
-      auto inline_keyboard_markup = move_tl_object_as<td_api::replyMarkupInlineKeyboard>(reply_markup_ptr);
-      reply_markup->type = ReplyMarkup::Type::InlineKeyboard;
-
-      reply_markup->inline_keyboard.reserve(inline_keyboard_markup->rows_.size());
-      int32 total_button_count = 0;
-      for (auto &row : inline_keyboard_markup->rows_) {
-        vector<InlineKeyboardButton> row_buttons;
-        row_buttons.reserve(row.size());
-
-        int32 row_button_count = 0;
-        for (auto &button : row) {
-          if (button->text_.empty()) {
-            continue;
-          }
-
-          TRY_RESULT(current_button, get_inline_keyboard_button(std::move(button), switch_inline_buttons_allowed));
-
-          row_buttons.push_back(std::move(current_button));
-          row_button_count++;
-          total_button_count++;
-          if (row_button_count >= 12 || total_button_count >= 300) {
-            break;
-          }
-        }
-        if (!row_buttons.empty()) {
-          reply_markup->inline_keyboard.push_back(std::move(row_buttons));
-        }
-        if (total_button_count >= 300) {
-          break;
-        }
-      }
-      if (reply_markup->inline_keyboard.empty()) {
-        return nullptr;
-      }
-      break;
-    }
-    case td_api::replyMarkupRemoveKeyboard::ID: {
-      auto remove_keyboard_markup = move_tl_object_as<td_api::replyMarkupRemoveKeyboard>(reply_markup_ptr);
-      reply_markup->type = ReplyMarkup::Type::RemoveKeyboard;
-      reply_markup->is_personal = remove_keyboard_markup->is_personal_;
-      break;
-    }
-    case td_api::replyMarkupForceReply::ID: {
-      auto force_reply_markup = move_tl_object_as<td_api::replyMarkupForceReply>(reply_markup_ptr);
-      reply_markup->type = ReplyMarkup::Type::ForceReply;
-      reply_markup->is_personal = force_reply_markup->is_personal_;
-      reply_markup->placeholder = std::move(force_reply_markup->input_field_placeholder_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  return std::move(reply_markup);
-}
-
-Result<unique_ptr<ReplyMarkup>> get_reply_markup(td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup_ptr,
-                                                 DialogType dialog_type, bool is_bot, bool is_anonymous) {
-  bool only_inline_keyboard = is_anonymous;
-  bool request_buttons_allowed = dialog_type == DialogType::User;
-  bool switch_inline_buttons_allowed = !is_anonymous;
-
-  TRY_RESULT(reply_markup, get_reply_markup(std::move(reply_markup_ptr), is_bot, only_inline_keyboard,
-                                            request_buttons_allowed, switch_inline_buttons_allowed));
-  if (reply_markup == nullptr) {
-    return nullptr;
-  }
-  switch (dialog_type) {
-    case DialogType::User:
-      if (reply_markup->type != ReplyMarkup::Type::InlineKeyboard) {
-        reply_markup->is_personal = false;
-      }
-      break;
-    case DialogType::Channel:
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-      // nothing special
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return std::move(reply_markup);
-}
-
-unique_ptr<ReplyMarkup> dup_reply_markup(const unique_ptr<ReplyMarkup> &reply_markup) {
-  if (reply_markup == nullptr) {
-    return nullptr;
-  }
-  auto result = make_unique<ReplyMarkup>();
-  result->type = reply_markup->type;
-  result->is_personal = reply_markup->is_personal;
-  result->is_persistent = reply_markup->is_persistent;
-  result->need_resize_keyboard = reply_markup->need_resize_keyboard;
-  result->keyboard = transform(reply_markup->keyboard, [](const vector<KeyboardButton> &row) {
-    return transform(row, [](const KeyboardButton &button) {
-      KeyboardButton result;
-      result.type = button.type;
-      result.text = button.text;
-      result.url = button.url;
-      result.requested_dialog_type = td::make_unique<RequestedDialogType>(*button.requested_dialog_type);
-      return result;
-    });
-  });
-  result->placeholder = reply_markup->placeholder;
-  result->inline_keyboard = reply_markup->inline_keyboard;
-  return result;
-}
-
-static tl_object_ptr<telegram_api::KeyboardButton> get_input_keyboard_button(const KeyboardButton &keyboard_button) {
-  switch (keyboard_button.type) {
-    case KeyboardButton::Type::Text:
-      return make_tl_object<telegram_api::keyboardButton>(keyboard_button.text);
-    case KeyboardButton::Type::RequestPhoneNumber:
-      return make_tl_object<telegram_api::keyboardButtonRequestPhone>(keyboard_button.text);
-    case KeyboardButton::Type::RequestLocation:
-      return make_tl_object<telegram_api::keyboardButtonRequestGeoLocation>(keyboard_button.text);
-    case KeyboardButton::Type::RequestPoll:
-      return make_tl_object<telegram_api::keyboardButtonRequestPoll>(0, false, keyboard_button.text);
-    case KeyboardButton::Type::RequestPollQuiz:
-      return make_tl_object<telegram_api::keyboardButtonRequestPoll>(1, true, keyboard_button.text);
-    case KeyboardButton::Type::RequestPollRegular:
-      return make_tl_object<telegram_api::keyboardButtonRequestPoll>(1, false, keyboard_button.text);
-    case KeyboardButton::Type::WebView:
-      return make_tl_object<telegram_api::keyboardButtonSimpleWebView>(keyboard_button.text, keyboard_button.url);
-    case KeyboardButton::Type::RequestDialog:
-      CHECK(keyboard_button.requested_dialog_type != nullptr);
-      return keyboard_button.requested_dialog_type->get_input_keyboard_button_request_peer(keyboard_button.text);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-static tl_object_ptr<telegram_api::KeyboardButton> get_input_keyboard_button(
-    UserManager *user_manager, const InlineKeyboardButton &keyboard_button) {
-  switch (keyboard_button.type) {
-    case InlineKeyboardButton::Type::Url:
-      return make_tl_object<telegram_api::keyboardButtonUrl>(keyboard_button.text, keyboard_button.data);
-    case InlineKeyboardButton::Type::Callback:
-      return make_tl_object<telegram_api::keyboardButtonCallback>(0, false, keyboard_button.text,
-                                                                  BufferSlice(keyboard_button.data));
-    case InlineKeyboardButton::Type::CallbackGame:
-      return make_tl_object<telegram_api::keyboardButtonGame>(keyboard_button.text);
-    case InlineKeyboardButton::Type::SwitchInline: {
-      int32 flags = 0;
-      auto peer_types = TargetDialogTypes(keyboard_button.id).get_input_peer_types();
-      if (!peer_types.empty()) {
-        flags |= telegram_api::keyboardButtonSwitchInline::PEER_TYPES_MASK;
-      }
-      return make_tl_object<telegram_api::keyboardButtonSwitchInline>(flags, false, keyboard_button.text,
-                                                                      keyboard_button.data, std::move(peer_types));
-    }
-    case InlineKeyboardButton::Type::SwitchInlineCurrentDialog:
-      return make_tl_object<telegram_api::keyboardButtonSwitchInline>(
-          0, true, keyboard_button.text, keyboard_button.data,
-          vector<telegram_api::object_ptr<telegram_api::InlineQueryPeerType>>());
-    case InlineKeyboardButton::Type::Buy:
-      return make_tl_object<telegram_api::keyboardButtonBuy>(keyboard_button.text);
-    case InlineKeyboardButton::Type::UrlAuth: {
-      int32 flags = 0;
-      bool request_write_access = false;
-      int64 bot_user_id = keyboard_button.id;
-      if (bot_user_id > 0) {
-        request_write_access = true;
-      } else {
-        bot_user_id = -bot_user_id;
-      }
-      if (!keyboard_button.forward_text.empty()) {
-        flags |= telegram_api::inputKeyboardButtonUrlAuth::FWD_TEXT_MASK;
-      }
-      auto r_input_user = user_manager->get_input_user(UserId(bot_user_id));
-      if (r_input_user.is_error()) {
-        LOG(ERROR) << "Failed to get InputUser for " << bot_user_id << ": " << r_input_user.error();
-        return make_tl_object<telegram_api::keyboardButtonUrl>(keyboard_button.text, keyboard_button.data);
-      }
-      return make_tl_object<telegram_api::inputKeyboardButtonUrlAuth>(flags, request_write_access, keyboard_button.text,
-                                                                      keyboard_button.forward_text,
-                                                                      keyboard_button.data, r_input_user.move_as_ok());
-    }
-    case InlineKeyboardButton::Type::CallbackWithPassword:
-      UNREACHABLE();
-      break;
-    case InlineKeyboardButton::Type::User: {
-      auto r_input_user = user_manager->get_input_user(keyboard_button.user_id);
-      if (r_input_user.is_error()) {
-        LOG(ERROR) << "Failed to get InputUser for " << keyboard_button.user_id << ": " << r_input_user.error();
-        r_input_user = make_tl_object<telegram_api::inputUserEmpty>();
-      }
-      return make_tl_object<telegram_api::inputKeyboardButtonUserProfile>(keyboard_button.text,
-                                                                          r_input_user.move_as_ok());
-    }
-    case InlineKeyboardButton::Type::WebView:
-      return make_tl_object<telegram_api::keyboardButtonWebView>(keyboard_button.text, keyboard_button.data);
-    case InlineKeyboardButton::Type::Copy:
-      return make_tl_object<telegram_api::keyboardButtonCopy>(keyboard_button.text, keyboard_button.data);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-tl_object_ptr<telegram_api::ReplyMarkup> ReplyMarkup::get_input_reply_markup(UserManager *user_manager) const {
-  switch (type) {
-    case ReplyMarkup::Type::InlineKeyboard: {
-      vector<tl_object_ptr<telegram_api::keyboardButtonRow>> rows;
-      rows.reserve(inline_keyboard.size());
-      for (auto &row : inline_keyboard) {
-        vector<tl_object_ptr<telegram_api::KeyboardButton>> buttons;
-        buttons.reserve(row.size());
-        for (auto &button : row) {
-          buttons.push_back(get_input_keyboard_button(user_manager, button));
-        }
-        rows.push_back(make_tl_object<telegram_api::keyboardButtonRow>(std::move(buttons)));
-      }
-      return make_tl_object<telegram_api::replyInlineMarkup>(std::move(rows));
-    }
-    case ReplyMarkup::Type::ShowKeyboard: {
-      vector<tl_object_ptr<telegram_api::keyboardButtonRow>> rows;
-      rows.reserve(keyboard.size());
-      for (auto &row : keyboard) {
-        vector<tl_object_ptr<telegram_api::KeyboardButton>> buttons;
-        buttons.reserve(row.size());
-        for (auto &button : row) {
-          buttons.push_back(get_input_keyboard_button(button));
-        }
-        rows.push_back(make_tl_object<telegram_api::keyboardButtonRow>(std::move(buttons)));
-      }
-      int32 flags = 0;
-      if (!placeholder.empty()) {
-        flags |= telegram_api::replyKeyboardMarkup::PLACEHOLDER_MASK;
-      }
-      return make_tl_object<telegram_api::replyKeyboardMarkup>(
-          flags, need_resize_keyboard, is_one_time_keyboard, is_personal, is_persistent, std::move(rows), placeholder);
-    }
-    case ReplyMarkup::Type::ForceReply: {
-      int32 flags = 0;
-      if (!placeholder.empty()) {
-        flags |= telegram_api::replyKeyboardForceReply::PLACEHOLDER_MASK;
-      }
-      return make_tl_object<telegram_api::replyKeyboardForceReply>(flags, is_one_time_keyboard, is_personal,
-                                                                   placeholder);
-    }
-    case ReplyMarkup::Type::RemoveKeyboard:
-      return make_tl_object<telegram_api::replyKeyboardHide>(0, is_personal);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-static tl_object_ptr<td_api::keyboardButton> get_keyboard_button_object(const KeyboardButton &keyboard_button) {
-  tl_object_ptr<td_api::KeyboardButtonType> type;
-  switch (keyboard_button.type) {
-    case KeyboardButton::Type::Text:
-      type = make_tl_object<td_api::keyboardButtonTypeText>();
-      break;
-    case KeyboardButton::Type::RequestPhoneNumber:
-      type = make_tl_object<td_api::keyboardButtonTypeRequestPhoneNumber>();
-      break;
-    case KeyboardButton::Type::RequestLocation:
-      type = make_tl_object<td_api::keyboardButtonTypeRequestLocation>();
-      break;
-    case KeyboardButton::Type::RequestPoll:
-      type = make_tl_object<td_api::keyboardButtonTypeRequestPoll>(false, false);
-      break;
-    case KeyboardButton::Type::RequestPollQuiz:
-      type = make_tl_object<td_api::keyboardButtonTypeRequestPoll>(false, true);
-      break;
-    case KeyboardButton::Type::RequestPollRegular:
-      type = make_tl_object<td_api::keyboardButtonTypeRequestPoll>(true, false);
-      break;
-    case KeyboardButton::Type::WebView:
-      type = make_tl_object<td_api::keyboardButtonTypeWebApp>(keyboard_button.url + "#kb");
-      break;
-    case KeyboardButton::Type::RequestDialog:
-      type = keyboard_button.requested_dialog_type->get_keyboard_button_type_object();
-      break;
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-  return make_tl_object<td_api::keyboardButton>(keyboard_button.text, std::move(type));
-}
-
-static tl_object_ptr<td_api::inlineKeyboardButton> get_inline_keyboard_button_object(
-    UserManager *user_manager, const InlineKeyboardButton &keyboard_button) {
-  tl_object_ptr<td_api::InlineKeyboardButtonType> type;
-  switch (keyboard_button.type) {
-    case InlineKeyboardButton::Type::Url:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeUrl>(keyboard_button.data);
-      break;
-    case InlineKeyboardButton::Type::Callback:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeCallback>(keyboard_button.data);
-      break;
-    case InlineKeyboardButton::Type::CallbackGame:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeCallbackGame>();
-      break;
-    case InlineKeyboardButton::Type::SwitchInline: {
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeSwitchInline>(
-          keyboard_button.data, td_api::make_object<td_api::targetChatChosen>(
-                                    TargetDialogTypes(keyboard_button.id).get_target_chat_types_object()));
-      break;
-    }
-    case InlineKeyboardButton::Type::SwitchInlineCurrentDialog:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeSwitchInline>(
-          keyboard_button.data, td_api::make_object<td_api::targetChatCurrent>());
-      break;
-    case InlineKeyboardButton::Type::Buy:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeBuy>();
-      break;
-    case InlineKeyboardButton::Type::UrlAuth:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeLoginUrl>(keyboard_button.data, keyboard_button.id,
-                                                                      keyboard_button.forward_text);
-      break;
-    case InlineKeyboardButton::Type::CallbackWithPassword:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeCallbackWithPassword>(keyboard_button.data);
-      break;
-    case InlineKeyboardButton::Type::User: {
-      bool need_user = user_manager != nullptr && !user_manager->is_user_bot(user_manager->get_my_id());
-      auto user_id =
-          need_user ? user_manager->get_user_id_object(keyboard_button.user_id, "get_inline_keyboard_button_object")
-                    : keyboard_button.user_id.get();
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeUser>(user_id);
-      break;
-    }
-    case InlineKeyboardButton::Type::WebView:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeWebApp>(keyboard_button.data);
-      break;
-    case InlineKeyboardButton::Type::Copy:
-      type = make_tl_object<td_api::inlineKeyboardButtonTypeCopyText>(keyboard_button.data);
-      break;
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-  return make_tl_object<td_api::inlineKeyboardButton>(keyboard_button.text, std::move(type));
-}
-
-tl_object_ptr<td_api::ReplyMarkup> ReplyMarkup::get_reply_markup_object(UserManager *user_manager) const {
-  switch (type) {
-    case ReplyMarkup::Type::InlineKeyboard: {
-      vector<vector<tl_object_ptr<td_api::inlineKeyboardButton>>> rows;
-      rows.reserve(inline_keyboard.size());
-      for (auto &row : inline_keyboard) {
-        vector<tl_object_ptr<td_api::inlineKeyboardButton>> buttons;
-        buttons.reserve(row.size());
-        for (auto &button : row) {
-          buttons.push_back(get_inline_keyboard_button_object(user_manager, button));
-        }
-        rows.push_back(std::move(buttons));
-      }
-
-      return make_tl_object<td_api::replyMarkupInlineKeyboard>(std::move(rows));
-    }
-    case ReplyMarkup::Type::ShowKeyboard: {
-      vector<vector<tl_object_ptr<td_api::keyboardButton>>> rows;
-      rows.reserve(keyboard.size());
-      for (auto &row : keyboard) {
-        vector<tl_object_ptr<td_api::keyboardButton>> buttons;
-        buttons.reserve(row.size());
-        for (auto &button : row) {
-          buttons.push_back(get_keyboard_button_object(button));
-        }
-        rows.push_back(std::move(buttons));
-      }
-
-      return make_tl_object<td_api::replyMarkupShowKeyboard>(std::move(rows), is_persistent, need_resize_keyboard,
-                                                             is_one_time_keyboard, is_personal, placeholder);
-    }
-    case ReplyMarkup::Type::RemoveKeyboard:
-      return make_tl_object<td_api::replyMarkupRemoveKeyboard>(is_personal);
-    case ReplyMarkup::Type::ForceReply:
-      return make_tl_object<td_api::replyMarkupForceReply>(is_personal, placeholder);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-Status ReplyMarkup::check_shared_dialog(Td *td, int32 button_id, DialogId dialog_id) const {
-  for (auto &row : keyboard) {
-    for (auto &button : row) {
-      if (button.requested_dialog_type != nullptr && button.requested_dialog_type->get_button_id() == button_id) {
-        return button.requested_dialog_type->check_shared_dialog(td, dialog_id);
-      }
-    }
-  }
-  return Status::Error(400, "Button not found");
-}
-
-Status ReplyMarkup::check_shared_dialog_count(int32 button_id, size_t count) const {
-  for (auto &row : keyboard) {
-    for (auto &button : row) {
-      if (button.requested_dialog_type != nullptr && button.requested_dialog_type->get_button_id() == button_id) {
-        return button.requested_dialog_type->check_shared_dialog_count(count);
-      }
-    }
-  }
-  return Status::Error(400, "Button not found");
-}
-
-tl_object_ptr<telegram_api::ReplyMarkup> get_input_reply_markup(UserManager *user_manager,
-                                                                const unique_ptr<ReplyMarkup> &reply_markup) {
-  if (reply_markup == nullptr) {
-    return nullptr;
-  }
-
-  return reply_markup->get_input_reply_markup(user_manager);
-}
-
-tl_object_ptr<td_api::ReplyMarkup> get_reply_markup_object(UserManager *user_manager,
-                                                           const unique_ptr<ReplyMarkup> &reply_markup) {
-  if (reply_markup == nullptr) {
-    return nullptr;
-  }
-
-  return reply_markup->get_reply_markup_object(user_manager);
-}
-
-void add_reply_markup_dependencies(Dependencies &dependencies, const ReplyMarkup *reply_markup) {
-  if (reply_markup == nullptr) {
-    return;
-  }
-  for (auto &row : reply_markup->inline_keyboard) {
-    for (auto &button : row) {
-      dependencies.add(button.user_id);
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReplyMarkup.h b/third-party/td/td/td/telegram/ReplyMarkup.h
deleted file mode 100644
index 71e07cc898..0000000000
--- a/third-party/td/td/td/telegram/ReplyMarkup.h
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/RequestedDialogType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class UserManager;
-
-struct KeyboardButton {
-  // append only
-  enum class Type : int32 {
-    Text,
-    RequestPhoneNumber,
-    RequestLocation,
-    RequestPoll,
-    RequestPollQuiz,
-    RequestPollRegular,
-    WebView,
-    RequestDialog
-  };
-  Type type;
-  string text;
-  string url;                                             // WebView only
-  unique_ptr<RequestedDialogType> requested_dialog_type;  // RequestDialog only
-};
-
-struct InlineKeyboardButton {
-  // append only
-  enum class Type : int32 {
-    Url,
-    Callback,
-    CallbackGame,
-    SwitchInline,
-    SwitchInlineCurrentDialog,
-    Buy,
-    UrlAuth,
-    CallbackWithPassword,
-    User,
-    WebView,
-    Copy
-  };
-
-  Type type;
-  int64 id = 0;    // UrlAuth: button_id or (2 * request_write_access - 1) * bot_user_id
-                   // SwitchInline: mask of allowed target chats; 0 if any
-  UserId user_id;  // User only
-  string text;
-  string forward_text;  // UrlAuth only
-  string data;
-};
-
-struct ReplyMarkup {
-  // append only
-  enum class Type : int32 { InlineKeyboard, ShowKeyboard, RemoveKeyboard, ForceReply };
-  Type type;
-
-  bool is_personal = false;  // for ShowKeyboard, RemoveKeyboard, ForceReply
-
-  bool is_persistent = false;               // for ShowKeyboard
-  bool need_resize_keyboard = false;        // for ShowKeyboard
-  bool is_one_time_keyboard = false;        // for ShowKeyboard
-  vector<vector<KeyboardButton>> keyboard;  // for ShowKeyboard
-  string placeholder;                       // for ShowKeyboard, ForceReply
-
-  vector<vector<InlineKeyboardButton>> inline_keyboard;  // for InlineKeyboard
-
-  StringBuilder &print(StringBuilder &string_builder) const;
-
-  tl_object_ptr<telegram_api::ReplyMarkup> get_input_reply_markup(UserManager *user_manager) const;
-
-  tl_object_ptr<td_api::ReplyMarkup> get_reply_markup_object(UserManager *user_manager) const;
-
-  Status check_shared_dialog(Td *td, int32 button_id, DialogId dialog_id) const;
-
-  Status check_shared_dialog_count(int32 button_id, size_t count) const;
-};
-
-bool operator==(const ReplyMarkup &lhs, const ReplyMarkup &rhs);
-bool operator!=(const ReplyMarkup &lhs, const ReplyMarkup &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReplyMarkup &reply_markup);
-
-unique_ptr<ReplyMarkup> get_reply_markup(tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup_ptr, bool is_bot,
-                                         bool only_inline_keyboard, bool message_contains_mention);
-
-Result<unique_ptr<ReplyMarkup>> get_reply_markup(td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup_ptr,
-                                                 bool is_bot, bool only_inline_keyboard, bool request_buttons_allowed,
-                                                 bool switch_inline_buttons_allowed);
-
-Result<unique_ptr<ReplyMarkup>> get_reply_markup(td_api::object_ptr<td_api::ReplyMarkup> &&reply_markup_ptr,
-                                                 DialogType dialog_type, bool is_bot, bool is_anonymous);
-
-unique_ptr<ReplyMarkup> dup_reply_markup(const unique_ptr<ReplyMarkup> &reply_markup);
-
-tl_object_ptr<telegram_api::ReplyMarkup> get_input_reply_markup(UserManager *user_manager,
-                                                                const unique_ptr<ReplyMarkup> &reply_markup);
-
-tl_object_ptr<td_api::ReplyMarkup> get_reply_markup_object(UserManager *user_manager,
-                                                           const unique_ptr<ReplyMarkup> &reply_markup);
-
-void add_reply_markup_dependencies(Dependencies &dependencies, const ReplyMarkup *reply_markup);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReplyMarkup.hpp b/third-party/td/td/td/telegram/ReplyMarkup.hpp
deleted file mode 100644
index ab35482a64..0000000000
--- a/third-party/td/td/td/telegram/ReplyMarkup.hpp
+++ /dev/null
@@ -1,181 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReplyMarkup.h"
-#include "td/telegram/RequestedDialogType.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const KeyboardButton &button, StorerT &storer) {
-  bool has_url = !button.url.empty();
-  bool has_requested_dialog_type = button.requested_dialog_type != nullptr;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_url);
-  STORE_FLAG(has_requested_dialog_type);
-  END_STORE_FLAGS();
-  store(button.type, storer);
-  store(button.text, storer);
-  if (has_url) {
-    store(button.url, storer);
-  }
-  if (has_requested_dialog_type) {
-    store(button.requested_dialog_type, storer);
-  }
-}
-
-template <class ParserT>
-void parse(KeyboardButton &button, ParserT &parser) {
-  bool has_url;
-  bool has_requested_dialog_type;
-  if (parser.version() >= static_cast<int32>(Version::AddKeyboardButtonFlags)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_url);
-    PARSE_FLAG(has_requested_dialog_type);
-    END_PARSE_FLAGS();
-  } else {
-    has_url = false;
-    has_requested_dialog_type = false;
-  }
-  parse(button.type, parser);
-  parse(button.text, parser);
-  if (has_url) {
-    parse(button.url, parser);
-  }
-  if (has_requested_dialog_type) {
-    parse(button.requested_dialog_type, parser);
-  }
-}
-
-template <class StorerT>
-void store(const InlineKeyboardButton &button, StorerT &storer) {
-  bool has_id = button.id != 0;
-  bool has_user_id = button.user_id.is_valid();
-  bool has_forward_text = !button.forward_text.empty();
-  bool has_data = !button.data.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_id);
-  STORE_FLAG(has_user_id);
-  STORE_FLAG(has_forward_text);
-  STORE_FLAG(has_data);
-  END_STORE_FLAGS();
-  store(button.type, storer);
-  if (has_id) {
-    store(button.id, storer);
-  }
-  if (has_user_id) {
-    store(button.user_id, storer);
-  }
-  store(button.text, storer);
-  if (has_forward_text) {
-    store(button.forward_text, storer);
-  }
-  if (has_data) {
-    store(button.data, storer);
-  }
-}
-
-template <class ParserT>
-void parse(InlineKeyboardButton &button, ParserT &parser) {
-  if (parser.version() >= static_cast<int32>(Version::AddKeyboardButtonFlags)) {
-    bool has_id;
-    bool has_user_id;
-    bool has_forward_text;
-    bool has_data;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_id);
-    PARSE_FLAG(has_user_id);
-    PARSE_FLAG(has_forward_text);
-    PARSE_FLAG(has_data);
-    END_PARSE_FLAGS();
-    parse(button.type, parser);
-    if (has_id) {
-      parse(button.id, parser);
-    }
-    if (has_user_id) {
-      parse(button.user_id, parser);
-    }
-    parse(button.text, parser);
-    if (has_forward_text) {
-      parse(button.forward_text, parser);
-    }
-    if (has_data) {
-      parse(button.data, parser);
-    }
-  } else {
-    parse(button.type, parser);
-    if (button.type == InlineKeyboardButton::Type::UrlAuth) {
-      if (parser.version() >= static_cast<int32>(Version::Support64BitIds)) {
-        parse(button.id, parser);
-      } else {
-        int32 old_id;
-        parse(old_id, parser);
-        button.id = old_id;
-      }
-    }
-    parse(button.text, parser);
-    parse(button.data, parser);
-  }
-}
-
-template <class StorerT>
-void store(const ReplyMarkup &reply_markup, StorerT &storer) {
-  bool has_keyboard = !reply_markup.keyboard.empty();
-  bool has_inline_keyboard = !reply_markup.inline_keyboard.empty();
-  bool has_placeholder = !reply_markup.placeholder.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(reply_markup.is_personal);
-  STORE_FLAG(reply_markup.need_resize_keyboard);
-  STORE_FLAG(reply_markup.is_one_time_keyboard);
-  STORE_FLAG(has_keyboard);
-  STORE_FLAG(has_inline_keyboard);
-  STORE_FLAG(has_placeholder);
-  STORE_FLAG(reply_markup.is_persistent);
-  END_STORE_FLAGS();
-  store(reply_markup.type, storer);
-  if (has_keyboard) {
-    store(reply_markup.keyboard, storer);
-  }
-  if (has_inline_keyboard) {
-    store(reply_markup.inline_keyboard, storer);
-  }
-  if (has_placeholder) {
-    store(reply_markup.placeholder, storer);
-  }
-}
-
-template <class ParserT>
-void parse(ReplyMarkup &reply_markup, ParserT &parser) {
-  bool has_keyboard;
-  bool has_inline_keyboard;
-  bool has_placeholder;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(reply_markup.is_personal);
-  PARSE_FLAG(reply_markup.need_resize_keyboard);
-  PARSE_FLAG(reply_markup.is_one_time_keyboard);
-  PARSE_FLAG(has_keyboard);
-  PARSE_FLAG(has_inline_keyboard);
-  PARSE_FLAG(has_placeholder);
-  PARSE_FLAG(reply_markup.is_persistent);
-  END_PARSE_FLAGS();
-  parse(reply_markup.type, parser);
-  if (has_keyboard) {
-    parse(reply_markup.keyboard, parser);
-  }
-  if (has_inline_keyboard) {
-    parse(reply_markup.inline_keyboard, parser);
-  }
-  if (has_placeholder) {
-    parse(reply_markup.placeholder, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReportReason.cpp b/third-party/td/td/td/telegram/ReportReason.cpp
deleted file mode 100644
index c217d4d279..0000000000
--- a/third-party/td/td/td/telegram/ReportReason.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ReportReason.h"
-
-#include "td/telegram/misc.h"
-
-namespace td {
-
-Result<ReportReason> ReportReason::get_report_reason(td_api::object_ptr<td_api::ReportReason> reason,
-                                                     string &&message) {
-  if (reason == nullptr) {
-    return Status::Error(400, "Chat report reason must be non-empty");
-  }
-  if (!clean_input_string(message)) {
-    return Status::Error(400, "Report text must be encoded in UTF-8");
-  }
-
-  auto type = [&] {
-    switch (reason->get_id()) {
-      case td_api::reportReasonSpam::ID:
-        return ReportReason::Type::Spam;
-      case td_api::reportReasonViolence::ID:
-        return ReportReason::Type::Violence;
-      case td_api::reportReasonPornography::ID:
-        return ReportReason::Type::Pornography;
-      case td_api::reportReasonChildAbuse::ID:
-        return ReportReason::Type::ChildAbuse;
-      case td_api::reportReasonCopyright::ID:
-        return ReportReason::Type::Copyright;
-      case td_api::reportReasonUnrelatedLocation::ID:
-        return ReportReason::Type::UnrelatedLocation;
-      case td_api::reportReasonFake::ID:
-        return ReportReason::Type::Fake;
-      case td_api::reportReasonIllegalDrugs::ID:
-        return ReportReason::Type::IllegalDrugs;
-      case td_api::reportReasonPersonalDetails::ID:
-        return ReportReason::Type::PersonalDetails;
-      case td_api::reportReasonCustom::ID:
-        return ReportReason::Type::Custom;
-      default:
-        UNREACHABLE();
-        return ReportReason::Type::Custom;
-    }
-  }();
-  return ReportReason(type, std::move(message));
-}
-
-tl_object_ptr<telegram_api::ReportReason> ReportReason::get_input_report_reason() const {
-  switch (type_) {
-    case ReportReason::Type::Spam:
-      return make_tl_object<telegram_api::inputReportReasonSpam>();
-    case ReportReason::Type::Violence:
-      return make_tl_object<telegram_api::inputReportReasonViolence>();
-    case ReportReason::Type::Pornography:
-      return make_tl_object<telegram_api::inputReportReasonPornography>();
-    case ReportReason::Type::ChildAbuse:
-      return make_tl_object<telegram_api::inputReportReasonChildAbuse>();
-    case ReportReason::Type::Copyright:
-      return make_tl_object<telegram_api::inputReportReasonCopyright>();
-    case ReportReason::Type::UnrelatedLocation:
-      return make_tl_object<telegram_api::inputReportReasonGeoIrrelevant>();
-    case ReportReason::Type::Fake:
-      return make_tl_object<telegram_api::inputReportReasonFake>();
-    case ReportReason::Type::IllegalDrugs:
-      return make_tl_object<telegram_api::inputReportReasonIllegalDrugs>();
-    case ReportReason::Type::PersonalDetails:
-      return make_tl_object<telegram_api::inputReportReasonPersonalDetails>();
-    case ReportReason::Type::Custom:
-      return make_tl_object<telegram_api::inputReportReasonOther>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReportReason &report_reason) {
-  string_builder << "ReportReason";
-  switch (report_reason.type_) {
-    case ReportReason::Type::Spam:
-      return string_builder << "Spam";
-    case ReportReason::Type::Violence:
-      return string_builder << "Violence";
-    case ReportReason::Type::Pornography:
-      return string_builder << "Pornography";
-    case ReportReason::Type::ChildAbuse:
-      return string_builder << "ChildAbuse";
-    case ReportReason::Type::Copyright:
-      return string_builder << "Copyright";
-    case ReportReason::Type::UnrelatedLocation:
-      return string_builder << "UnrelatedLocation";
-    case ReportReason::Type::Fake:
-      return string_builder << "Fake";
-    case ReportReason::Type::IllegalDrugs:
-      return string_builder << "IllegalDrugs";
-    case ReportReason::Type::PersonalDetails:
-      return string_builder << "PersonalDetails";
-    case ReportReason::Type::Custom:
-      return string_builder << "Custom";
-    default:
-      UNREACHABLE();
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ReportReason.h b/third-party/td/td/td/telegram/ReportReason.h
deleted file mode 100644
index b0bd025bfe..0000000000
--- a/third-party/td/td/td/telegram/ReportReason.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ReportReason {
-  enum class Type : int32 {
-    Spam,
-    Violence,
-    Pornography,
-    ChildAbuse,
-    Copyright,
-    UnrelatedLocation,
-    Fake,
-    IllegalDrugs,
-    PersonalDetails,
-    Custom
-  };
-  Type type_ = Type::Spam;
-  string message_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const ReportReason &report_reason);
-
-  ReportReason(Type type, string &&message) : type_(type), message_(std::move(message)) {
-  }
-
- public:
-  ReportReason() = default;
-
-  static Result<ReportReason> get_report_reason(td_api::object_ptr<td_api::ReportReason> reason, string &&message);
-
-  tl_object_ptr<telegram_api::ReportReason> get_input_report_reason() const;
-
-  const string &get_message() const {
-    return message_;
-  }
-
-  bool is_spam() const {
-    return type_ == Type::Spam;
-  }
-
-  bool is_unrelated_location() const {
-    return type_ == Type::UnrelatedLocation;
-  }
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ReportReason &report_reason);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RequestActor.h b/third-party/td/td/td/telegram/RequestActor.h
deleted file mode 100644
index 8c29cfa6b4..0000000000
--- a/third-party/td/td/td/telegram/RequestActor.h
+++ /dev/null
@@ -1,160 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Global.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <type_traits>
-
-namespace td {
-
-template <class T = Unit>
-class RequestActor : public Actor {
- public:
-  RequestActor(ActorShared<Td> td_id, uint64 request_id)
-      : td_id_(std::move(td_id)), td_(td_id_.get().get_actor_unsafe()), request_id_(request_id) {
-  }
-
-  void loop() override {
-    if (G()->close_flag()) {
-      return do_send_error(Global::request_aborted_error());
-    }
-
-    PromiseActor<T> promise_actor;
-    FutureActor<T> future;
-    init_promise_future(&promise_actor, &future);
-
-    auto promise = create_promise_from_promise_actor(std::move(promise_actor));
-    do_run(std::move(promise));
-
-    if (future.is_ready()) {
-      CHECK(!promise);
-      if (future.is_error()) {
-        do_send_error(future.move_as_error());
-      } else {
-        do_set_result(future.move_as_ok());
-        do_send_result();
-      }
-      stop();
-    } else {
-      CHECK(!future.empty());
-      CHECK(future.get_state() == FutureActor<T>::State::Waiting);
-      if (--tries_left_ == 0) {
-        future.close();
-        do_send_error(Status::Error(500, "Requested data is inaccessible"));
-        return stop();
-      }
-
-      future.set_event(EventCreator::raw(actor_id(), nullptr));
-      future_ = std::move(future);
-    }
-  }
-
-  void raw_event(const Event::Raw &event) final {
-    if (future_.is_error()) {
-      auto error = future_.move_as_error();
-      if (error.is_static() && error.code() == FutureActor<T>::HANGUP_ERROR_CODE) {
-        // dropping query due to closing or lost promise
-        if (G()->close_flag()) {
-          do_send_error(Global::request_aborted_error());
-        } else {
-          LOG(ERROR) << "Promise was lost";
-          do_send_error(Status::Error(500, "Query can't be answered due to a bug in TDLib"));
-        }
-        return stop();
-      }
-
-      do_send_error(std::move(error));
-      stop();
-    } else {
-      do_set_result(future_.move_as_ok());
-      loop();
-    }
-  }
-
-  void on_start_migrate(int32 /*sched_id*/) final {
-    UNREACHABLE();
-  }
-  void on_finish_migrate() final {
-    UNREACHABLE();
-  }
-
-  int get_tries() const {
-    return tries_left_;
-  }
-
-  void set_tries(int32 tries) {
-    tries_left_ = tries;
-  }
-
- protected:
-  ActorShared<Td> td_id_;
-  Td *td_;
-
-  void send_result(tl_object_ptr<td_api::Object> &&result) {
-    send_closure(td_id_, &Td::send_result, request_id_, std::move(result));
-  }
-
-  void send_error(Status &&status) {
-    LOG(INFO) << "Receive error for query: " << status;
-    send_closure(td_id_, &Td::send_error, request_id_, std::move(status));
-  }
-
- private:
-  virtual void do_run(Promise<T> &&promise) = 0;
-
-  virtual void do_send_result() {
-    send_result(make_tl_object<td_api::ok>());
-  }
-
-  virtual void do_send_error(Status &&status) {
-    send_error(std::move(status));
-  }
-
-  virtual void do_set_result(T &&result) {
-    CHECK((std::is_same<T, Unit>::value));  // all other results should be implicitly handled by overriding this method
-  }
-
-  void hangup() final {
-    do_send_error(Global::request_aborted_error());
-    stop();
-  }
-
-  friend class RequestOnceActor;
-
-  uint64 request_id_;
-  int tries_left_ = 2;
-  FutureActor<T> future_;
-};
-
-class RequestOnceActor : public RequestActor<> {
- public:
-  RequestOnceActor(ActorShared<Td> td_id, uint64 request_id) : RequestActor(std::move(td_id), request_id) {
-  }
-
-  void loop() final {
-    if (get_tries() < 2) {
-      do_send_result();
-      stop();
-      return;
-    }
-
-    RequestActor::loop();
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RequestedDialogType.cpp b/third-party/td/td/td/telegram/RequestedDialogType.cpp
deleted file mode 100644
index a8e7aa5505..0000000000
--- a/third-party/td/td/td/telegram/RequestedDialogType.cpp
+++ /dev/null
@@ -1,289 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/RequestedDialogType.h"
-
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-namespace td {
-
-RequestedDialogType::RequestedDialogType(td_api::object_ptr<td_api::keyboardButtonTypeRequestUsers> &&request_users) {
-  CHECK(request_users != nullptr);
-  type_ = Type::User;
-  button_id_ = request_users->id_;
-  max_quantity_ = max(request_users->max_quantity_, 1);
-  restrict_is_bot_ = request_users->restrict_user_is_bot_;
-  is_bot_ = request_users->user_is_bot_;
-  restrict_is_premium_ = request_users->restrict_user_is_premium_;
-  is_premium_ = request_users->user_is_premium_;
-  request_name_ = request_users->request_name_;
-  request_username_ = request_users->request_username_;
-  request_photo_ = request_users->request_photo_;
-}
-
-RequestedDialogType::RequestedDialogType(td_api::object_ptr<td_api::keyboardButtonTypeRequestChat> &&request_dialog) {
-  CHECK(request_dialog != nullptr);
-  type_ = request_dialog->chat_is_channel_ ? Type::Channel : Type::Group;
-  button_id_ = request_dialog->id_;
-  restrict_is_forum_ = request_dialog->restrict_chat_is_forum_;
-  is_forum_ = request_dialog->chat_is_forum_;
-  bot_is_participant_ = request_dialog->bot_is_member_;
-  restrict_has_username_ = request_dialog->restrict_chat_has_username_;
-  has_username_ = request_dialog->chat_has_username_;
-  is_created_ = request_dialog->chat_is_created_;
-  restrict_user_administrator_rights_ = request_dialog->user_administrator_rights_ != nullptr;
-  restrict_bot_administrator_rights_ = request_dialog->bot_administrator_rights_ != nullptr;
-  auto channel_type = request_dialog->chat_is_channel_ ? ChannelType::Broadcast : ChannelType::Megagroup;
-  user_administrator_rights_ = AdministratorRights(request_dialog->user_administrator_rights_, channel_type);
-  bot_administrator_rights_ = AdministratorRights(request_dialog->bot_administrator_rights_, channel_type);
-  request_name_ = request_dialog->request_title_;
-  request_username_ = request_dialog->request_username_;
-  request_photo_ = request_dialog->request_photo_;
-}
-
-RequestedDialogType::RequestedDialogType(telegram_api::object_ptr<telegram_api::RequestPeerType> &&peer_type,
-                                         int32 button_id, int32 max_quantity) {
-  CHECK(peer_type != nullptr);
-  button_id_ = button_id;
-  max_quantity_ = max(max_quantity, 1);
-  switch (peer_type->get_id()) {
-    case telegram_api::requestPeerTypeUser::ID: {
-      auto type = telegram_api::move_object_as<telegram_api::requestPeerTypeUser>(peer_type);
-      type_ = Type::User;
-      restrict_is_bot_ = (type->flags_ & telegram_api::requestPeerTypeUser::BOT_MASK) != 0;
-      is_bot_ = type->bot_;
-      restrict_is_premium_ = (type->flags_ & telegram_api::requestPeerTypeUser::PREMIUM_MASK) != 0;
-      is_premium_ = type->premium_;
-      break;
-    }
-    case telegram_api::requestPeerTypeChat::ID: {
-      auto type = telegram_api::move_object_as<telegram_api::requestPeerTypeChat>(peer_type);
-      type_ = Type::Group;
-      restrict_is_forum_ = (type->flags_ & telegram_api::requestPeerTypeChat::FORUM_MASK) != 0;
-      is_forum_ = type->forum_;
-      bot_is_participant_ = type->bot_participant_;
-      restrict_has_username_ = (type->flags_ & telegram_api::requestPeerTypeChat::HAS_USERNAME_MASK) != 0;
-      has_username_ = type->has_username_;
-      is_created_ = type->creator_;
-      restrict_user_administrator_rights_ = !is_created_ && type->user_admin_rights_ != nullptr;
-      restrict_bot_administrator_rights_ = type->bot_admin_rights_ != nullptr;
-      user_administrator_rights_ = AdministratorRights(type->user_admin_rights_, ChannelType::Megagroup);
-      bot_administrator_rights_ = AdministratorRights(type->bot_admin_rights_, ChannelType::Megagroup);
-      break;
-    }
-    case telegram_api::requestPeerTypeBroadcast::ID: {
-      auto type = telegram_api::move_object_as<telegram_api::requestPeerTypeBroadcast>(peer_type);
-      type_ = Type::Channel;
-      restrict_has_username_ = (type->flags_ & telegram_api::requestPeerTypeBroadcast::HAS_USERNAME_MASK) != 0;
-      has_username_ = type->has_username_;
-      is_created_ = type->creator_;
-      restrict_user_administrator_rights_ = !is_created_ && type->user_admin_rights_ != nullptr;
-      restrict_bot_administrator_rights_ = type->bot_admin_rights_ != nullptr;
-      user_administrator_rights_ = AdministratorRights(type->user_admin_rights_, ChannelType::Broadcast);
-      bot_administrator_rights_ = AdministratorRights(type->bot_admin_rights_, ChannelType::Broadcast);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-td_api::object_ptr<td_api::KeyboardButtonType> RequestedDialogType::get_keyboard_button_type_object() const {
-  if (type_ == Type::User) {
-    return td_api::make_object<td_api::keyboardButtonTypeRequestUsers>(
-        button_id_, restrict_is_bot_, is_bot_, restrict_is_premium_, is_premium_, max_quantity_, request_name_,
-        request_username_, request_photo_);
-  } else {
-    auto user_administrator_rights = restrict_user_administrator_rights_
-                                         ? user_administrator_rights_.get_chat_administrator_rights_object()
-                                         : nullptr;
-    auto bot_administrator_rights =
-        restrict_bot_administrator_rights_ ? bot_administrator_rights_.get_chat_administrator_rights_object() : nullptr;
-    return td_api::make_object<td_api::keyboardButtonTypeRequestChat>(
-        button_id_, type_ == Type::Channel, restrict_is_forum_, is_forum_, restrict_has_username_, has_username_,
-        is_created_, std::move(user_administrator_rights), std::move(bot_administrator_rights), bot_is_participant_,
-        request_name_, request_username_, request_photo_);
-  }
-}
-
-telegram_api::object_ptr<telegram_api::RequestPeerType> RequestedDialogType::get_input_request_peer_type_object()
-    const {
-  switch (type_) {
-    case Type::User: {
-      int32 flags = 0;
-      if (restrict_is_bot_) {
-        flags |= telegram_api::requestPeerTypeUser::BOT_MASK;
-      }
-      if (restrict_is_premium_) {
-        flags |= telegram_api::requestPeerTypeUser::PREMIUM_MASK;
-      }
-      return telegram_api::make_object<telegram_api::requestPeerTypeUser>(flags, is_bot_, is_premium_);
-    }
-    case Type::Group: {
-      int32 flags = 0;
-      if (restrict_is_forum_) {
-        flags |= telegram_api::requestPeerTypeChat::FORUM_MASK;
-      }
-      if (restrict_has_username_) {
-        flags |= telegram_api::requestPeerTypeChat::HAS_USERNAME_MASK;
-      }
-      if (restrict_user_administrator_rights_) {
-        flags |= telegram_api::requestPeerTypeChat::USER_ADMIN_RIGHTS_MASK;
-      }
-      if (restrict_bot_administrator_rights_) {
-        flags |= telegram_api::requestPeerTypeChat::BOT_ADMIN_RIGHTS_MASK;
-      }
-      auto user_admin_rights =
-          restrict_user_administrator_rights_ ? user_administrator_rights_.get_chat_admin_rights() : nullptr;
-      auto bot_admin_rights =
-          restrict_bot_administrator_rights_ ? bot_administrator_rights_.get_chat_admin_rights() : nullptr;
-      return telegram_api::make_object<telegram_api::requestPeerTypeChat>(
-          flags, is_created_, bot_is_participant_, has_username_, is_forum_, std::move(user_admin_rights),
-          std::move(bot_admin_rights));
-    }
-    case Type::Channel: {
-      int32 flags = 0;
-      if (restrict_has_username_) {
-        flags |= telegram_api::requestPeerTypeBroadcast::HAS_USERNAME_MASK;
-      }
-      if (restrict_user_administrator_rights_) {
-        flags |= telegram_api::requestPeerTypeBroadcast::USER_ADMIN_RIGHTS_MASK;
-      }
-      if (restrict_bot_administrator_rights_) {
-        flags |= telegram_api::requestPeerTypeBroadcast::BOT_ADMIN_RIGHTS_MASK;
-      }
-      auto user_admin_rights =
-          restrict_user_administrator_rights_ ? user_administrator_rights_.get_chat_admin_rights() : nullptr;
-      auto bot_admin_rights =
-          restrict_bot_administrator_rights_ ? bot_administrator_rights_.get_chat_admin_rights() : nullptr;
-      return telegram_api::make_object<telegram_api::requestPeerTypeBroadcast>(
-          flags, is_created_, has_username_, std::move(user_admin_rights), std::move(bot_admin_rights));
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::inputKeyboardButtonRequestPeer>
-RequestedDialogType::get_input_keyboard_button_request_peer(const string &text) const {
-  return telegram_api::make_object<telegram_api::inputKeyboardButtonRequestPeer>(
-      0, request_name_, request_username_, request_photo_, text, button_id_, get_input_request_peer_type_object(),
-      max_quantity_);
-}
-
-int32 RequestedDialogType::get_button_id() const {
-  return button_id_;
-}
-
-Status RequestedDialogType::check_shared_dialog(Td *td, DialogId dialog_id) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      if (type_ != Type::User) {
-        return Status::Error(400, "Wrong chat type");
-      }
-      auto user_id = dialog_id.get_user_id();
-      if (restrict_is_bot_ && td->user_manager_->is_user_bot(user_id) != is_bot_) {
-        return Status::Error(400, "Wrong is_bot value");
-      }
-      if (restrict_is_premium_ && td->user_manager_->is_user_premium(user_id) != is_premium_) {
-        return Status::Error(400, "Wrong is_premium value");
-      }
-      break;
-    }
-    case DialogType::Chat: {
-      if (type_ != Type::Group) {
-        return Status::Error(400, "Wrong chat type");
-      }
-      if (restrict_is_forum_ && is_forum_) {
-        return Status::Error(400, "Wrong is_forum value");
-      }
-      if (restrict_has_username_ && has_username_) {
-        return Status::Error(400, "Wrong has_username value");
-      }
-      auto chat_id = dialog_id.get_chat_id();
-      if (!td->chat_manager_->get_chat_is_active(chat_id)) {
-        return Status::Error(400, "Chat is deactivated");
-      }
-      auto status = td->chat_manager_->get_chat_status(chat_id);
-      if (is_created_ && !status.is_creator()) {
-        return Status::Error(400, "The chat must be created by the current user");
-      }
-      if (bot_is_participant_) {
-        // can't check that the bot is already participant, so check that the user can add it instead
-        if (!status.can_invite_users()) {
-          return Status::Error(400, "The bot can't be added to the chat");
-        }
-      }
-      if (restrict_user_administrator_rights_ && !status.has_all_administrator_rights(user_administrator_rights_)) {
-        return Status::Error(400, "Not enough rights in the chat");
-      }
-      if (restrict_bot_administrator_rights_) {
-        // can't check that the bot is already an administrator, so check that the user can promote it instead
-        if (!status.can_invite_users() || !status.can_promote_members()) {
-          return Status::Error(400, "The bot can't be promoted in the chat");
-        }
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      bool is_broadcast = td->chat_manager_->is_broadcast_channel(channel_id);
-      if (type_ != (is_broadcast ? Type::Channel : Type::Group)) {
-        return Status::Error(400, "Wrong chat type");
-      }
-      if (!is_broadcast && restrict_is_forum_ && td->chat_manager_->is_forum_channel(channel_id) != is_forum_) {
-        return Status::Error(400, "Wrong is_forum value");
-      }
-      if (restrict_has_username_ &&
-          td->chat_manager_->get_channel_first_username(channel_id).empty() == has_username_) {
-        return Status::Error(400, "Wrong has_username value");
-      }
-      auto status = td->chat_manager_->get_channel_status(channel_id);
-      if (is_created_ && !status.is_creator()) {
-        return Status::Error(400, "The chat must be created by the current user");
-      }
-      bool can_invite_bot =
-          status.can_invite_users() && (status.is_administrator() || !td->chat_manager_->is_channel_public(channel_id));
-      if (!is_broadcast && bot_is_participant_) {
-        // can't synchronously check that the bot is already participant
-        if (!can_invite_bot) {
-          // return Status::Error(400, "The bot can't be added to the chat");
-        }
-      }
-      if (restrict_user_administrator_rights_ && !status.has_all_administrator_rights(user_administrator_rights_)) {
-        return Status::Error(400, "Not enough rights in the chat");
-      }
-      if (restrict_bot_administrator_rights_) {
-        // can't synchronously check that the bot is already an administrator
-        if (!can_invite_bot || !status.can_promote_members()) {
-          // return Status::Error(400, "The bot can't be promoted in the chat");
-        }
-      }
-      break;
-    }
-    case DialogType::SecretChat:
-      return Status::Error(400, "Can't share secret chats");
-    case DialogType::None:
-      UNREACHABLE();
-  }
-  return Status::OK();
-}
-
-Status RequestedDialogType::check_shared_dialog_count(size_t count) const {
-  if (count == 0) {
-    return Status::Error(400, "Too few chats are chosen");
-  }
-  if (count > static_cast<size_t>(max_quantity_)) {
-    return Status::Error(400, "Too many chats are chosen");
-  }
-  return Status::OK();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RequestedDialogType.h b/third-party/td/td/td/telegram/RequestedDialogType.h
deleted file mode 100644
index af5333b25b..0000000000
--- a/third-party/td/td/td/telegram/RequestedDialogType.h
+++ /dev/null
@@ -1,76 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class RequestedDialogType {
-  enum class Type : int32 { User, Group, Channel };
-  Type type_ = Type::User;
-  int32 button_id_ = 0;
-  int32 max_quantity_ = 1;            // User only
-  bool restrict_is_bot_ = false;      // User only
-  bool is_bot_ = false;               // User only
-  bool restrict_is_premium_ = false;  // User only
-  bool is_premium_ = false;           // User only
-
-  bool request_name_ = false;
-  bool request_username_ = false;
-  bool request_photo_ = false;
-
-  bool restrict_is_forum_ = false;                   // Group only
-  bool is_forum_ = false;                            // Group only
-  bool bot_is_participant_ = false;                  // Group only
-  bool restrict_has_username_ = false;               // Group and Channel only
-  bool has_username_ = false;                        // Group and Channel only
-  bool is_created_ = false;                          // Group and Channel only
-  bool restrict_user_administrator_rights_ = false;  // Group and Channel only
-  bool restrict_bot_administrator_rights_ = false;   // Group and Channel only
-  AdministratorRights user_administrator_rights_;    // Group and Channel only
-  AdministratorRights bot_administrator_rights_;     // Group and Channel only
-
-  telegram_api::object_ptr<telegram_api::RequestPeerType> get_input_request_peer_type_object() const;
-
- public:
-  RequestedDialogType() = default;
-
-  explicit RequestedDialogType(td_api::object_ptr<td_api::keyboardButtonTypeRequestUsers> &&request_users);
-
-  explicit RequestedDialogType(td_api::object_ptr<td_api::keyboardButtonTypeRequestChat> &&request_dialog);
-
-  RequestedDialogType(telegram_api::object_ptr<telegram_api::RequestPeerType> &&peer_type, int32 button_id,
-                      int32 max_quantity);
-
-  td_api::object_ptr<td_api::KeyboardButtonType> get_keyboard_button_type_object() const;
-
-  telegram_api::object_ptr<telegram_api::inputKeyboardButtonRequestPeer> get_input_keyboard_button_request_peer(
-      const string &text) const;
-
-  int32 get_button_id() const;
-
-  Status check_shared_dialog(Td *td, DialogId dialog_id) const;
-
-  Status check_shared_dialog_count(size_t count) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RequestedDialogType.hpp b/third-party/td/td/td/telegram/RequestedDialogType.hpp
deleted file mode 100644
index edb96b03f7..0000000000
--- a/third-party/td/td/td/telegram/RequestedDialogType.hpp
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/RequestedDialogType.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void RequestedDialogType::store(StorerT &storer) const {
-  bool has_max_quantity = max_quantity_ != 1;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(restrict_is_bot_);
-  STORE_FLAG(is_bot_);
-  STORE_FLAG(restrict_is_premium_);
-  STORE_FLAG(is_premium_);
-  STORE_FLAG(restrict_is_forum_);
-  STORE_FLAG(is_forum_);
-  STORE_FLAG(bot_is_participant_);
-  STORE_FLAG(restrict_has_username_);
-  STORE_FLAG(has_username_);
-  STORE_FLAG(is_created_);
-  STORE_FLAG(restrict_user_administrator_rights_);
-  STORE_FLAG(restrict_bot_administrator_rights_);
-  STORE_FLAG(has_max_quantity);
-  END_STORE_FLAGS();
-  td::store(type_, storer);
-  td::store(button_id_, storer);
-  if (restrict_user_administrator_rights_) {
-    td::store(user_administrator_rights_, storer);
-  }
-  if (restrict_bot_administrator_rights_) {
-    td::store(bot_administrator_rights_, storer);
-  }
-  if (has_max_quantity) {
-    td::store(max_quantity_, storer);
-  }
-}
-
-template <class ParserT>
-void RequestedDialogType::parse(ParserT &parser) {
-  bool has_max_quantity;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(restrict_is_bot_);
-  PARSE_FLAG(is_bot_);
-  PARSE_FLAG(restrict_is_premium_);
-  PARSE_FLAG(is_premium_);
-  PARSE_FLAG(restrict_is_forum_);
-  PARSE_FLAG(is_forum_);
-  PARSE_FLAG(bot_is_participant_);
-  PARSE_FLAG(restrict_has_username_);
-  PARSE_FLAG(has_username_);
-  PARSE_FLAG(is_created_);
-  PARSE_FLAG(restrict_user_administrator_rights_);
-  PARSE_FLAG(restrict_bot_administrator_rights_);
-  PARSE_FLAG(has_max_quantity);
-  END_PARSE_FLAGS();
-  td::parse(type_, parser);
-  td::parse(button_id_, parser);
-  if (restrict_user_administrator_rights_) {
-    td::parse(user_administrator_rights_, parser);
-  }
-  if (restrict_bot_administrator_rights_) {
-    td::parse(bot_administrator_rights_, parser);
-  }
-  if (has_max_quantity) {
-    td::parse(max_quantity_, parser);
-  } else {
-    max_quantity_ = 1;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Requests.cpp b/third-party/td/td/td/telegram/Requests.cpp
deleted file mode 100644
index b03e574b45..0000000000
--- a/third-party/td/td/td/telegram/Requests.cpp
+++ /dev/null
@@ -1,8182 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Requests.h"
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/AccountManager.h"
-#include "td/telegram/AlarmManager.h"
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/Application.h"
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/AutoDownloadSettings.h"
-#include "td/telegram/AutosaveManager.h"
-#include "td/telegram/BackgroundId.h"
-#include "td/telegram/BackgroundManager.h"
-#include "td/telegram/BackgroundType.h"
-#include "td/telegram/Birthdate.h"
-#include "td/telegram/BoostManager.h"
-#include "td/telegram/BotCommand.h"
-#include "td/telegram/BotInfoManager.h"
-#include "td/telegram/BotMenuButton.h"
-#include "td/telegram/BotQueries.h"
-#include "td/telegram/BotRecommendationManager.h"
-#include "td/telegram/BusinessAwayMessage.h"
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/BusinessConnectionManager.h"
-#include "td/telegram/BusinessGreetingMessage.h"
-#include "td/telegram/BusinessIntro.h"
-#include "td/telegram/BusinessManager.h"
-#include "td/telegram/BusinessWorkHours.h"
-#include "td/telegram/CallbackQueriesManager.h"
-#include "td/telegram/CallId.h"
-#include "td/telegram/CallManager.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChannelRecommendationManager.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/CommonDialogManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/ConnectionStateManager.h"
-#include "td/telegram/CountryInfoManager.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DeviceTokenManager.h"
-#include "td/telegram/DialogAction.h"
-#include "td/telegram/DialogActionManager.h"
-#include "td/telegram/DialogBoostLinkInfo.h"
-#include "td/telegram/DialogEventLog.h"
-#include "td/telegram/DialogFilterId.h"
-#include "td/telegram/DialogFilterManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogInviteLinkManager.h"
-#include "td/telegram/DialogListId.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/DialogParticipantFilter.h"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/DownloadManager.h"
-#include "td/telegram/DownloadManagerCallback.h"
-#include "td/telegram/EmailVerification.h"
-#include "td/telegram/EmojiGroupType.h"
-#include "td/telegram/EmojiStatus.h"
-#include "td/telegram/files/FileGcParameters.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileStats.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/ForumTopicManager.h"
-#include "td/telegram/GameManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/GlobalPrivacySettings.h"
-#include "td/telegram/GroupCallId.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/HashtagHints.h"
-#include "td/telegram/InlineMessageManager.h"
-#include "td/telegram/InlineQueriesManager.h"
-#include "td/telegram/JsonValue.h"
-#include "td/telegram/LanguagePackManager.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/MessageCopyOptions.h"
-#include "td/telegram/MessageEffectId.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageImportManager.h"
-#include "td/telegram/MessageLinkInfo.h"
-#include "td/telegram/MessageQueryManager.h"
-#include "td/telegram/MessageReaction.h"
-#include "td/telegram/MessageSearchFilter.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/MessageSource.h"
-#include "td/telegram/MessageThreadInfo.h"
-#include "td/telegram/MessageTtl.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/ConnectionCreator.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/net/NetStatsManager.h"
-#include "td/telegram/net/NetType.h"
-#include "td/telegram/net/Proxy.h"
-#include "td/telegram/NotificationGroupId.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/NotificationObjectId.h"
-#include "td/telegram/NotificationSettingsManager.h"
-#include "td/telegram/NotificationSettingsScope.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/Payments.h"
-#include "td/telegram/PhoneNumberManager.h"
-#include "td/telegram/Premium.h"
-#include "td/telegram/PrivacyManager.h"
-#include "td/telegram/PublicDialogType.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/ReactionManager.h"
-#include "td/telegram/ReactionNotificationSettings.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/ReferralProgramManager.h"
-#include "td/telegram/ReferralProgramParameters.h"
-#include "td/telegram/ReferralProgramSortOrder.h"
-#include "td/telegram/ReportReason.h"
-#include "td/telegram/RequestActor.h"
-#include "td/telegram/SavedMessagesManager.h"
-#include "td/telegram/SavedMessagesTopicId.h"
-#include "td/telegram/ScopeNotificationSettings.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/SecretChatsManager.h"
-#include "td/telegram/SecureManager.h"
-#include "td/telegram/SecureValue.h"
-#include "td/telegram/SentEmailCode.h"
-#include "td/telegram/SponsoredMessageManager.h"
-#include "td/telegram/StarGiftId.h"
-#include "td/telegram/StarGiftManager.h"
-#include "td/telegram/StarGiftSettings.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StarSubscriptionPricing.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/StatisticsManager.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickerListType.h"
-#include "td/telegram/StickerSetId.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/StorageManager.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/StoryListId.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/SuggestedActionManager.h"
-#include "td/telegram/Support.h"
-#include "td/telegram/SynchronousRequests.h"
-#include "td/telegram/td_api.hpp"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/TermsOfServiceManager.h"
-#include "td/telegram/TimeZoneManager.h"
-#include "td/telegram/TopDialogCategory.h"
-#include "td/telegram/TopDialogManager.h"
-#include "td/telegram/TranscriptionManager.h"
-#include "td/telegram/TranslationManager.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/WebAppManager.h"
-#include "td/telegram/WebAppOpenParameters.h"
-#include "td/telegram/WebPageId.h"
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <tuple>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-class GetMeRequest final : public RequestActor<> {
-  UserId user_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    user_id_ = td_->user_manager_->get_me(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->user_manager_->get_user_object(user_id_));
-  }
-
- public:
-  GetMeRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class GetUserRequest final : public RequestActor<> {
-  UserId user_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->user_manager_->get_user(user_id_, get_tries(), std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->user_manager_->get_user_object(user_id_));
-  }
-
- public:
-  GetUserRequest(ActorShared<Td> td, uint64 request_id, int64 user_id)
-      : RequestActor(std::move(td), request_id), user_id_(user_id) {
-    set_tries(3);
-  }
-};
-
-class GetUserFullInfoRequest final : public RequestActor<> {
-  UserId user_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->user_manager_->load_user_full(user_id_, get_tries() < 2, std::move(promise), "GetUserFullInfoRequest");
-  }
-
-  void do_send_result() final {
-    send_result(td_->user_manager_->get_user_full_info_object(user_id_));
-  }
-
- public:
-  GetUserFullInfoRequest(ActorShared<Td> td, uint64 request_id, int64 user_id)
-      : RequestActor(std::move(td), request_id), user_id_(user_id) {
-  }
-};
-
-class GetGroupRequest final : public RequestActor<> {
-  ChatId chat_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->chat_manager_->get_chat(chat_id_, get_tries(), std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->chat_manager_->get_basic_group_object(chat_id_));
-  }
-
- public:
-  GetGroupRequest(ActorShared<Td> td, uint64 request_id, int64 chat_id)
-      : RequestActor(std::move(td), request_id), chat_id_(chat_id) {
-    set_tries(3);
-  }
-};
-
-class GetGroupFullInfoRequest final : public RequestActor<> {
-  ChatId chat_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->chat_manager_->load_chat_full(chat_id_, get_tries() < 2, std::move(promise), "getBasicGroupFullInfo");
-  }
-
-  void do_send_result() final {
-    send_result(td_->chat_manager_->get_basic_group_full_info_object(chat_id_));
-  }
-
- public:
-  GetGroupFullInfoRequest(ActorShared<Td> td, uint64 request_id, int64 chat_id)
-      : RequestActor(std::move(td), request_id), chat_id_(chat_id) {
-  }
-};
-
-class GetSupergroupRequest final : public RequestActor<> {
-  ChannelId channel_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->chat_manager_->get_channel(channel_id_, get_tries(), std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->chat_manager_->get_supergroup_object(channel_id_));
-  }
-
- public:
-  GetSupergroupRequest(ActorShared<Td> td, uint64 request_id, int64 channel_id)
-      : RequestActor(std::move(td), request_id), channel_id_(channel_id) {
-    set_tries(3);
-  }
-};
-
-class GetSupergroupFullInfoRequest final : public RequestActor<> {
-  ChannelId channel_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->chat_manager_->load_channel_full(channel_id_, get_tries() < 2, std::move(promise),
-                                          "GetSupergroupFullInfoRequest");
-  }
-
-  void do_send_result() final {
-    send_result(td_->chat_manager_->get_supergroup_full_info_object(channel_id_));
-  }
-
- public:
-  GetSupergroupFullInfoRequest(ActorShared<Td> td, uint64 request_id, int64 channel_id)
-      : RequestActor(std::move(td), request_id), channel_id_(channel_id) {
-  }
-};
-
-class GetSecretChatRequest final : public RequestActor<> {
-  SecretChatId secret_chat_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->user_manager_->get_secret_chat(secret_chat_id_, get_tries() < 2, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->user_manager_->get_secret_chat_object(secret_chat_id_));
-  }
-
- public:
-  GetSecretChatRequest(ActorShared<Td> td, uint64 request_id, int32 secret_chat_id)
-      : RequestActor(std::move(td), request_id), secret_chat_id_(secret_chat_id) {
-  }
-};
-
-class GetChatRequest final : public RequestActor<> {
-  DialogId dialog_id_;
-
-  bool dialog_found_ = false;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_found_ = td_->messages_manager_->load_dialog(dialog_id_, get_tries(), std::move(promise));
-  }
-
-  void do_send_result() final {
-    if (!dialog_found_) {
-      send_error(Status::Error(400, "Chat is not accessible"));
-    } else {
-      send_result(td_->messages_manager_->get_chat_object(dialog_id_, "GetChatRequest"));
-    }
-  }
-
- public:
-  GetChatRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id)
-      : RequestActor(std::move(td), request_id), dialog_id_(dialog_id) {
-    set_tries(3);
-  }
-};
-
-class SearchUserByPhoneNumberRequest final : public RequestActor<> {
-  string phone_number_;
-  bool only_local_;
-
-  UserId user_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    user_id_ = td_->user_manager_->search_user_by_phone_number(phone_number_, only_local_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->user_manager_->get_user_object(user_id_));
-  }
-
- public:
-  SearchUserByPhoneNumberRequest(ActorShared<Td> td, uint64 request_id, string &&phone_number, bool only_local)
-      : RequestActor(std::move(td), request_id), phone_number_(std::move(phone_number)), only_local_(only_local) {
-  }
-};
-
-class LoadChatsRequest final : public RequestActor<> {
-  DialogListId dialog_list_id_;
-  DialogDate offset_;
-  int32 limit_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->get_dialogs(dialog_list_id_, offset_, limit_, false, get_tries() < 2, std::move(promise));
-  }
-
- public:
-  LoadChatsRequest(ActorShared<Td> td, uint64 request_id, DialogListId dialog_list_id, DialogDate offset, int32 limit)
-      : RequestActor(std::move(td), request_id), dialog_list_id_(dialog_list_id), offset_(offset), limit_(limit) {
-    // 1 for database + 1 for server request + 1 for server request at the end + 1 for return + 1 just in case
-    set_tries(5);
-
-    if (limit_ > 100) {
-      limit_ = 100;
-    }
-  }
-};
-
-class SearchPublicChatRequest final : public RequestActor<> {
-  string username_;
-
-  DialogId dialog_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_id_ = td_->dialog_manager_->search_public_dialog(username_, get_tries() < 3, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_chat_object(dialog_id_, "SearchPublicChatRequest"));
-  }
-
- public:
-  SearchPublicChatRequest(ActorShared<Td> td, uint64 request_id, string username)
-      : RequestActor(std::move(td), request_id), username_(std::move(username)) {
-    set_tries(4);  // 1 for server request + 1 for reload voice chat + 1 for reload dialog + 1 for result
-  }
-};
-
-class SearchPublicChatsRequest final : public RequestActor<> {
-  string query_;
-
-  vector<DialogId> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->dialog_manager_->search_public_dialogs(query_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->dialog_manager_->get_chats_object(-1, dialog_ids_, "SearchPublicChatsRequest"));
-  }
-
- public:
-  SearchPublicChatsRequest(ActorShared<Td> td, uint64 request_id, string query)
-      : RequestActor(std::move(td), request_id), query_(std::move(query)) {
-  }
-};
-
-class SearchChatsRequest final : public RequestActor<> {
-  string query_;
-  int32 limit_;
-
-  std::pair<int32, vector<DialogId>> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->messages_manager_->search_dialogs(query_, limit_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->dialog_manager_->get_chats_object(dialog_ids_, "SearchChatsRequest"));
-  }
-
- public:
-  SearchChatsRequest(ActorShared<Td> td, uint64 request_id, string query, int32 limit)
-      : RequestActor(std::move(td), request_id), query_(std::move(query)), limit_(limit) {
-  }
-};
-
-class SearchChatsOnServerRequest final : public RequestActor<> {
-  string query_;
-  int32 limit_;
-
-  vector<DialogId> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->dialog_manager_->search_dialogs_on_server(query_, limit_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->dialog_manager_->get_chats_object(-1, dialog_ids_, "SearchChatsOnServerRequest"));
-  }
-
- public:
-  SearchChatsOnServerRequest(ActorShared<Td> td, uint64 request_id, string query, int32 limit)
-      : RequestActor(std::move(td), request_id), query_(std::move(query)), limit_(limit) {
-  }
-};
-
-class GetGroupsInCommonRequest final : public RequestActor<> {
-  UserId user_id_;
-  DialogId offset_dialog_id_;
-  int32 limit_;
-
-  std::pair<int32, vector<DialogId>> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->common_dialog_manager_->get_common_dialogs(user_id_, offset_dialog_id_, limit_, get_tries() < 2,
-                                                                  std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->dialog_manager_->get_chats_object(dialog_ids_, "GetGroupsInCommonRequest"));
-  }
-
- public:
-  GetGroupsInCommonRequest(ActorShared<Td> td, uint64 request_id, int64 user_id, int64 offset_dialog_id, int32 limit)
-      : RequestActor(std::move(td), request_id), user_id_(user_id), offset_dialog_id_(offset_dialog_id), limit_(limit) {
-  }
-};
-
-class GetSuitableDiscussionChatsRequest final : public RequestActor<> {
-  vector<DialogId> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->chat_manager_->get_dialogs_for_discussion(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->dialog_manager_->get_chats_object(-1, dialog_ids_, "GetSuitableDiscussionChatsRequest"));
-  }
-
- public:
-  GetSuitableDiscussionChatsRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class GetInactiveSupergroupChatsRequest final : public RequestActor<> {
-  vector<DialogId> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->chat_manager_->get_inactive_channels(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->dialog_manager_->get_chats_object(-1, dialog_ids_, "GetInactiveSupergroupChatsRequest"));
-  }
-
- public:
-  GetInactiveSupergroupChatsRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class SearchRecentlyFoundChatsRequest final : public RequestActor<> {
-  string query_;
-  int32 limit_;
-
-  std::pair<int32, vector<DialogId>> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->dialog_manager_->search_recently_found_dialogs(query_, limit_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->dialog_manager_->get_chats_object(dialog_ids_, "SearchRecentlyFoundChatsRequest"));
-  }
-
- public:
-  SearchRecentlyFoundChatsRequest(ActorShared<Td> td, uint64 request_id, string query, int32 limit)
-      : RequestActor(std::move(td), request_id), query_(std::move(query)), limit_(limit) {
-  }
-};
-
-class GetRecentlyOpenedChatsRequest final : public RequestActor<> {
-  int32 limit_;
-
-  std::pair<int32, vector<DialogId>> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->dialog_manager_->get_recently_opened_dialogs(limit_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->dialog_manager_->get_chats_object(dialog_ids_, "GetRecentlyOpenedChatsRequest"));
-  }
-
- public:
-  GetRecentlyOpenedChatsRequest(ActorShared<Td> td, uint64 request_id, int32 limit)
-      : RequestActor(std::move(td), request_id), limit_(limit) {
-  }
-};
-
-class GetMessageRequest final : public RequestOnceActor {
-  MessageFullId message_full_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->get_message(message_full_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_object(message_full_id_, "GetMessageRequest"));
-  }
-
- public:
-  GetMessageRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id)
-      : RequestOnceActor(std::move(td), request_id), message_full_id_(DialogId(dialog_id), MessageId(message_id)) {
-  }
-};
-
-class GetRepliedMessageRequest final : public RequestOnceActor {
-  DialogId dialog_id_;
-  MessageId message_id_;
-
-  MessageFullId replied_message_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    replied_message_id_ =
-        td_->messages_manager_->get_replied_message(dialog_id_, message_id_, get_tries() < 3, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_object(replied_message_id_, "GetRepliedMessageRequest"));
-  }
-
- public:
-  GetRepliedMessageRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id)
-      : RequestOnceActor(std::move(td), request_id), dialog_id_(dialog_id), message_id_(message_id) {
-    set_tries(3);  // 1 to get initial message, 1 to get the reply and 1 for result
-  }
-};
-
-class GetMessageThreadRequest final : public RequestActor<MessageThreadInfo> {
-  DialogId dialog_id_;
-  MessageId message_id_;
-
-  MessageThreadInfo message_thread_info_;
-
-  void do_run(Promise<MessageThreadInfo> &&promise) final {
-    if (get_tries() < 2) {
-      promise.set_value(std::move(message_thread_info_));
-      return;
-    }
-    td_->messages_manager_->get_message_thread(dialog_id_, message_id_, std::move(promise));
-  }
-
-  void do_set_result(MessageThreadInfo &&result) final {
-    message_thread_info_ = std::move(result);
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_thread_info_object(message_thread_info_));
-  }
-
- public:
-  GetMessageThreadRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id)
-      : RequestActor(std::move(td), request_id), dialog_id_(dialog_id), message_id_(message_id) {
-  }
-};
-
-class GetChatPinnedMessageRequest final : public RequestOnceActor {
-  DialogId dialog_id_;
-
-  MessageId pinned_message_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    pinned_message_id_ = td_->messages_manager_->get_dialog_pinned_message(dialog_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(
-        td_->messages_manager_->get_message_object({dialog_id_, pinned_message_id_}, "GetChatPinnedMessageRequest"));
-  }
-
- public:
-  GetChatPinnedMessageRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id)
-      : RequestOnceActor(std::move(td), request_id), dialog_id_(dialog_id) {
-    set_tries(3);  // 1 to get pinned_message_id, 1 to get the message and 1 for result
-  }
-};
-
-class GetCallbackQueryMessageRequest final : public RequestOnceActor {
-  DialogId dialog_id_;
-  MessageId message_id_;
-  int64 callback_query_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->get_callback_query_message(dialog_id_, message_id_, callback_query_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(
-        td_->messages_manager_->get_message_object({dialog_id_, message_id_}, "GetCallbackQueryMessageRequest"));
-  }
-
- public:
-  GetCallbackQueryMessageRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id,
-                                 int64 callback_query_id)
-      : RequestOnceActor(std::move(td), request_id)
-      , dialog_id_(dialog_id)
-      , message_id_(message_id)
-      , callback_query_id_(callback_query_id) {
-  }
-};
-
-class GetMessagesRequest final : public RequestOnceActor {
-  DialogId dialog_id_;
-  vector<MessageId> message_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->get_messages(dialog_id_, message_ids_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_messages_object(-1, dialog_id_, message_ids_, false, "GetMessagesRequest"));
-  }
-
- public:
-  GetMessagesRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, const vector<int64> &message_ids)
-      : RequestOnceActor(std::move(td), request_id)
-      , dialog_id_(dialog_id)
-      , message_ids_(MessageId::get_message_ids(message_ids)) {
-  }
-};
-
-class GetMessageEmbeddingCodeRequest final : public RequestActor<> {
-  MessageFullId message_full_id_;
-  bool for_group_;
-
-  string html_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    html_ = td_->messages_manager_->get_message_embedding_code(message_full_id_, for_group_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_api::make_object<td_api::text>(html_));
-  }
-
- public:
-  GetMessageEmbeddingCodeRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id,
-                                 bool for_group)
-      : RequestActor(std::move(td), request_id)
-      , message_full_id_(DialogId(dialog_id), MessageId(message_id))
-      , for_group_(for_group) {
-  }
-};
-
-class GetMessageLinkInfoRequest final : public RequestActor<MessageLinkInfo> {
-  string url_;
-
-  MessageLinkInfo message_link_info_;
-
-  void do_run(Promise<MessageLinkInfo> &&promise) final {
-    if (get_tries() < 2) {
-      promise.set_value(std::move(message_link_info_));
-      return;
-    }
-    td_->messages_manager_->get_message_link_info(url_, std::move(promise));
-  }
-
-  void do_set_result(MessageLinkInfo &&result) final {
-    message_link_info_ = std::move(result);
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_link_info_object(message_link_info_));
-  }
-
- public:
-  GetMessageLinkInfoRequest(ActorShared<Td> td, uint64 request_id, string url)
-      : RequestActor(std::move(td), request_id), url_(std::move(url)) {
-  }
-};
-
-class GetDialogBoostLinkInfoRequest final : public RequestActor<DialogBoostLinkInfo> {
-  string url_;
-
-  DialogBoostLinkInfo dialog_boost_link_info_;
-
-  void do_run(Promise<DialogBoostLinkInfo> &&promise) final {
-    if (get_tries() < 2) {
-      promise.set_value(std::move(dialog_boost_link_info_));
-      return;
-    }
-    td_->boost_manager_->get_dialog_boost_link_info(url_, std::move(promise));
-  }
-
-  void do_set_result(DialogBoostLinkInfo &&result) final {
-    dialog_boost_link_info_ = std::move(result);
-  }
-
-  void do_send_result() final {
-    send_result(td_->boost_manager_->get_chat_boost_link_info_object(dialog_boost_link_info_));
-  }
-
- public:
-  GetDialogBoostLinkInfoRequest(ActorShared<Td> td, uint64 request_id, string url)
-      : RequestActor(std::move(td), request_id), url_(std::move(url)) {
-  }
-};
-
-class EditMessageTextRequest final : public RequestOnceActor {
-  MessageFullId message_full_id_;
-  td_api::object_ptr<td_api::ReplyMarkup> reply_markup_;
-  td_api::object_ptr<td_api::InputMessageContent> input_message_content_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->edit_message_text(message_full_id_, std::move(reply_markup_),
-                                              std::move(input_message_content_), std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_object(message_full_id_, "EditMessageTextRequest"));
-  }
-
- public:
-  EditMessageTextRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id,
-                         td_api::object_ptr<td_api::ReplyMarkup> reply_markup,
-                         td_api::object_ptr<td_api::InputMessageContent> input_message_content)
-      : RequestOnceActor(std::move(td), request_id)
-      , message_full_id_(DialogId(dialog_id), MessageId(message_id))
-      , reply_markup_(std::move(reply_markup))
-      , input_message_content_(std::move(input_message_content)) {
-  }
-};
-
-class EditMessageLiveLocationRequest final : public RequestOnceActor {
-  MessageFullId message_full_id_;
-  td_api::object_ptr<td_api::ReplyMarkup> reply_markup_;
-  td_api::object_ptr<td_api::location> location_;
-  int32 live_period_;
-  int32 heading_;
-  int32 proximity_alert_radius_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->edit_message_live_location(message_full_id_, std::move(reply_markup_), std::move(location_),
-                                                       live_period_, heading_, proximity_alert_radius_,
-                                                       std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_object(message_full_id_, "EditMessageLiveLocationRequest"));
-  }
-
- public:
-  EditMessageLiveLocationRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id,
-                                 td_api::object_ptr<td_api::ReplyMarkup> reply_markup,
-                                 td_api::object_ptr<td_api::location> location, int32 live_period, int32 heading,
-                                 int32 proximity_alert_radius)
-      : RequestOnceActor(std::move(td), request_id)
-      , message_full_id_(DialogId(dialog_id), MessageId(message_id))
-      , reply_markup_(std::move(reply_markup))
-      , location_(std::move(location))
-      , live_period_(live_period)
-      , heading_(heading)
-      , proximity_alert_radius_(proximity_alert_radius) {
-  }
-};
-
-class EditMessageMediaRequest final : public RequestOnceActor {
-  MessageFullId message_full_id_;
-  td_api::object_ptr<td_api::ReplyMarkup> reply_markup_;
-  td_api::object_ptr<td_api::InputMessageContent> input_message_content_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->edit_message_media(message_full_id_, std::move(reply_markup_),
-                                               std::move(input_message_content_), std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_object(message_full_id_, "EditMessageMediaRequest"));
-  }
-
- public:
-  EditMessageMediaRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id,
-                          td_api::object_ptr<td_api::ReplyMarkup> reply_markup,
-                          td_api::object_ptr<td_api::InputMessageContent> input_message_content)
-      : RequestOnceActor(std::move(td), request_id)
-      , message_full_id_(DialogId(dialog_id), MessageId(message_id))
-      , reply_markup_(std::move(reply_markup))
-      , input_message_content_(std::move(input_message_content)) {
-  }
-};
-
-class EditMessageCaptionRequest final : public RequestOnceActor {
-  MessageFullId message_full_id_;
-  td_api::object_ptr<td_api::ReplyMarkup> reply_markup_;
-  td_api::object_ptr<td_api::formattedText> caption_;
-  bool invert_media_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->edit_message_caption(message_full_id_, std::move(reply_markup_), std::move(caption_),
-                                                 invert_media_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_object(message_full_id_, "EditMessageCaptionRequest"));
-  }
-
- public:
-  EditMessageCaptionRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id,
-                            td_api::object_ptr<td_api::ReplyMarkup> reply_markup,
-                            td_api::object_ptr<td_api::formattedText> caption, bool invert_media)
-      : RequestOnceActor(std::move(td), request_id)
-      , message_full_id_(DialogId(dialog_id), MessageId(message_id))
-      , reply_markup_(std::move(reply_markup))
-      , caption_(std::move(caption))
-      , invert_media_(invert_media) {
-  }
-};
-
-class EditMessageReplyMarkupRequest final : public RequestOnceActor {
-  MessageFullId message_full_id_;
-  td_api::object_ptr<td_api::ReplyMarkup> reply_markup_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->edit_message_reply_markup(message_full_id_, std::move(reply_markup_), std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_message_object(message_full_id_, "EditMessageReplyMarkupRequest"));
-  }
-
- public:
-  EditMessageReplyMarkupRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id,
-                                td_api::object_ptr<td_api::ReplyMarkup> reply_markup)
-      : RequestOnceActor(std::move(td), request_id)
-      , message_full_id_(DialogId(dialog_id), MessageId(message_id))
-      , reply_markup_(std::move(reply_markup)) {
-  }
-};
-
-class GetChatHistoryRequest final : public RequestActor<> {
-  DialogId dialog_id_;
-  MessageId from_message_id_;
-  int32 offset_;
-  int32 limit_;
-  bool only_local_;
-
-  td_api::object_ptr<td_api::messages> messages_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    messages_ = td_->messages_manager_->get_dialog_history(dialog_id_, from_message_id_, offset_, limit_,
-                                                           get_tries() - 1, only_local_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(std::move(messages_));
-  }
-
- public:
-  GetChatHistoryRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 from_message_id, int32 offset,
-                        int32 limit, bool only_local)
-      : RequestActor(std::move(td), request_id)
-      , dialog_id_(dialog_id)
-      , from_message_id_(from_message_id)
-      , offset_(offset)
-      , limit_(limit)
-      , only_local_(only_local) {
-    if (!only_local_) {
-      set_tries(4);
-    }
-  }
-};
-
-class GetMessageThreadHistoryRequest final : public RequestActor<> {
-  DialogId dialog_id_;
-  MessageId message_id_;
-  MessageId from_message_id_;
-  int32 offset_;
-  int32 limit_;
-  int64 random_id_;
-
-  std::pair<DialogId, vector<MessageId>> messages_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    messages_ = td_->messages_manager_->get_message_thread_history(dialog_id_, message_id_, from_message_id_, offset_,
-                                                                   limit_, random_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_messages_object(-1, messages_.first, messages_.second, true,
-                                                            "GetMessageThreadHistoryRequest"));
-  }
-
- public:
-  GetMessageThreadHistoryRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, int64 message_id,
-                                 int64 from_message_id, int32 offset, int32 limit)
-      : RequestActor(std::move(td), request_id)
-      , dialog_id_(dialog_id)
-      , message_id_(message_id)
-      , from_message_id_(from_message_id)
-      , offset_(offset)
-      , limit_(limit)
-      , random_id_(0) {
-    set_tries(3);
-  }
-};
-
-class SearchChatMessagesRequest final : public RequestActor<> {
-  DialogId dialog_id_;
-  string query_;
-  td_api::object_ptr<td_api::MessageSender> sender_id_;
-  MessageId from_message_id_;
-  int32 offset_;
-  int32 limit_;
-  MessageSearchFilter filter_;
-  MessageId top_thread_message_id_;
-  SavedMessagesTopicId saved_messages_topic_id_;
-  ReactionType tag_;
-  int64 random_id_;
-
-  MessagesManager::FoundDialogMessages messages_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    messages_ = td_->messages_manager_->search_dialog_messages(
-        dialog_id_, query_, sender_id_, from_message_id_, offset_, limit_, filter_, top_thread_message_id_,
-        saved_messages_topic_id_, tag_, random_id_, get_tries() == 3, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(
-        td_->messages_manager_->get_found_chat_messages_object(dialog_id_, messages_, "SearchChatMessagesRequest"));
-  }
-
-  void do_send_error(Status &&status) final {
-    if (status.message() == "SEARCH_QUERY_EMPTY") {
-      messages_ = {};
-      return do_send_result();
-    }
-    send_error(std::move(status));
-  }
-
- public:
-  SearchChatMessagesRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id, string query,
-                            td_api::object_ptr<td_api::MessageSender> sender_id, int64 from_message_id, int32 offset,
-                            int32 limit, td_api::object_ptr<td_api::SearchMessagesFilter> filter,
-                            int64 message_thread_id, SavedMessagesTopicId saved_messages_topic_id, ReactionType tag)
-      : RequestActor(std::move(td), request_id)
-      , dialog_id_(dialog_id)
-      , query_(std::move(query))
-      , sender_id_(std::move(sender_id))
-      , from_message_id_(from_message_id)
-      , offset_(offset)
-      , limit_(limit)
-      , filter_(get_message_search_filter(filter))
-      , top_thread_message_id_(message_thread_id)
-      , saved_messages_topic_id_(saved_messages_topic_id)
-      , tag_(std::move(tag))
-      , random_id_(0) {
-    set_tries(3);
-  }
-};
-
-class GetChatScheduledMessagesRequest final : public RequestActor<> {
-  DialogId dialog_id_;
-
-  vector<MessageId> message_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    message_ids_ =
-        td_->messages_manager_->get_dialog_scheduled_messages(dialog_id_, get_tries() < 2, false, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_messages_object(-1, dialog_id_, message_ids_, true,
-                                                            "GetChatScheduledMessagesRequest"));
-  }
-
- public:
-  GetChatScheduledMessagesRequest(ActorShared<Td> td, uint64 request_id, int64 dialog_id)
-      : RequestActor(std::move(td), request_id), dialog_id_(dialog_id) {
-    set_tries(4);
-  }
-};
-
-class GetWebPageInstantViewRequest final : public RequestActor<WebPageId> {
-  string url_;
-  bool only_local_;
-
-  WebPageId web_page_id_;
-
-  void do_run(Promise<WebPageId> &&promise) final {
-    if (get_tries() < 2) {
-      promise.set_value(std::move(web_page_id_));
-      return;
-    }
-    td_->web_pages_manager_->get_web_page_instant_view(url_, only_local_, std::move(promise));
-  }
-
-  void do_set_result(WebPageId &&result) final {
-    web_page_id_ = result;
-  }
-
-  void do_send_result() final {
-    send_result(td_->web_pages_manager_->get_web_page_instant_view_object(web_page_id_));
-  }
-
- public:
-  GetWebPageInstantViewRequest(ActorShared<Td> td, uint64 request_id, string url, bool only_local)
-      : RequestActor(std::move(td), request_id), url_(std::move(url)), only_local_(only_local) {
-  }
-};
-
-class CreateChatRequest final : public RequestActor<> {
-  DialogId dialog_id_;
-  bool force_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->messages_manager_->create_dialog(dialog_id_, force_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->messages_manager_->get_chat_object(dialog_id_, "CreateChatRequest"));
-  }
-
- public:
-  CreateChatRequest(ActorShared<Td> td, uint64 request_id, DialogId dialog_id, bool force)
-      : RequestActor<>(std::move(td), request_id), dialog_id_(dialog_id), force_(force) {
-  }
-};
-
-class CheckChatInviteLinkRequest final : public RequestActor<> {
-  string invite_link_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->dialog_invite_link_manager_->check_dialog_invite_link(invite_link_, get_tries() < 2, std::move(promise));
-  }
-
-  void do_send_result() final {
-    auto result = td_->dialog_invite_link_manager_->get_chat_invite_link_info_object(invite_link_);
-    CHECK(result != nullptr);
-    send_result(std::move(result));
-  }
-
- public:
-  CheckChatInviteLinkRequest(ActorShared<Td> td, uint64 request_id, string invite_link)
-      : RequestActor(std::move(td), request_id), invite_link_(std::move(invite_link)) {
-  }
-};
-
-class JoinChatByInviteLinkRequest final : public RequestActor<DialogId> {
-  string invite_link_;
-
-  DialogId dialog_id_;
-
-  void do_run(Promise<DialogId> &&promise) final {
-    if (get_tries() < 2) {
-      promise.set_value(std::move(dialog_id_));
-      return;
-    }
-    td_->dialog_invite_link_manager_->import_dialog_invite_link(invite_link_, std::move(promise));
-  }
-
-  void do_set_result(DialogId &&result) final {
-    dialog_id_ = result;
-  }
-
-  void do_send_result() final {
-    CHECK(dialog_id_.is_valid());
-    td_->dialog_manager_->force_create_dialog(dialog_id_, "join chat via an invite link");
-    send_result(td_->messages_manager_->get_chat_object(dialog_id_, "JoinChatByInviteLinkRequest"));
-  }
-
- public:
-  JoinChatByInviteLinkRequest(ActorShared<Td> td, uint64 request_id, string invite_link)
-      : RequestActor(std::move(td), request_id), invite_link_(std::move(invite_link)) {
-  }
-};
-
-class ImportContactsRequest final : public RequestActor<> {
-  vector<Contact> contacts_;
-  int64 random_id_;
-
-  std::pair<vector<UserId>, vector<int32>> imported_contacts_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    imported_contacts_ = td_->user_manager_->import_contacts(contacts_, random_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    CHECK(imported_contacts_.first.size() == contacts_.size());
-    CHECK(imported_contacts_.second.size() == contacts_.size());
-    send_result(td_api::make_object<td_api::importedContacts>(transform(imported_contacts_.first,
-                                                                        [this](UserId user_id) {
-                                                                          return td_->user_manager_->get_user_id_object(
-                                                                              user_id, "ImportContactsRequest");
-                                                                        }),
-                                                              std::move(imported_contacts_.second)));
-  }
-
- public:
-  ImportContactsRequest(ActorShared<Td> td, uint64 request_id, vector<Contact> &&contacts)
-      : RequestActor(std::move(td), request_id), contacts_(std::move(contacts)), random_id_(0) {
-    set_tries(3);  // load_contacts + import_contacts
-  }
-};
-
-class SearchContactsRequest final : public RequestActor<> {
-  string query_;
-  int32 limit_;
-
-  std::pair<int32, vector<UserId>> user_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    user_ids_ = td_->user_manager_->search_contacts(query_, limit_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->user_manager_->get_users_object(user_ids_.first, user_ids_.second));
-  }
-
- public:
-  SearchContactsRequest(ActorShared<Td> td, uint64 request_id, string query, int32 limit)
-      : RequestActor(std::move(td), request_id), query_(std::move(query)), limit_(limit) {
-  }
-};
-
-class RemoveContactsRequest final : public RequestActor<> {
-  vector<UserId> user_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->user_manager_->remove_contacts(user_ids_, std::move(promise));
-  }
-
- public:
-  RemoveContactsRequest(ActorShared<Td> td, uint64 request_id, vector<UserId> &&user_ids)
-      : RequestActor(std::move(td), request_id), user_ids_(std::move(user_ids)) {
-    set_tries(3);  // load_contacts + delete_contacts
-  }
-};
-
-class GetImportedContactCountRequest final : public RequestActor<> {
-  int32 imported_contact_count_ = 0;
-
-  void do_run(Promise<Unit> &&promise) final {
-    imported_contact_count_ = td_->user_manager_->get_imported_contact_count(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_api::make_object<td_api::count>(imported_contact_count_));
-  }
-
- public:
-  GetImportedContactCountRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class ChangeImportedContactsRequest final : public RequestActor<> {
-  vector<Contact> contacts_;
-  size_t contacts_size_;
-  int64 random_id_;
-
-  std::pair<vector<UserId>, vector<int32>> imported_contacts_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    imported_contacts_ = td_->user_manager_->change_imported_contacts(contacts_, random_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    CHECK(imported_contacts_.first.size() == contacts_size_);
-    CHECK(imported_contacts_.second.size() == contacts_size_);
-    send_result(td_api::make_object<td_api::importedContacts>(transform(imported_contacts_.first,
-                                                                        [this](UserId user_id) {
-                                                                          return td_->user_manager_->get_user_id_object(
-                                                                              user_id, "ChangeImportedContactsRequest");
-                                                                        }),
-                                                              std::move(imported_contacts_.second)));
-  }
-
- public:
-  ChangeImportedContactsRequest(ActorShared<Td> td, uint64 request_id, vector<Contact> &&contacts)
-      : RequestActor(std::move(td), request_id)
-      , contacts_(std::move(contacts))
-      , contacts_size_(contacts_.size())
-      , random_id_(0) {
-    set_tries(4);  // load_contacts + load_local_contacts + (import_contacts + delete_contacts)
-  }
-};
-
-class GetCloseFriendsRequest final : public RequestActor<> {
-  vector<UserId> user_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    user_ids_ = td_->user_manager_->get_close_friends(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->user_manager_->get_users_object(-1, user_ids_));
-  }
-
- public:
-  GetCloseFriendsRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class GetRecentInlineBotsRequest final : public RequestActor<> {
-  vector<UserId> user_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    user_ids_ = td_->inline_queries_manager_->get_recent_inline_bots(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->user_manager_->get_users_object(-1, user_ids_));
-  }
-
- public:
-  GetRecentInlineBotsRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class GetChatNotificationSettingsExceptionsRequest final : public RequestActor<> {
-  NotificationSettingsScope scope_;
-  bool filter_scope_;
-  bool compare_sound_;
-
-  vector<DialogId> dialog_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    dialog_ids_ = td_->messages_manager_->get_dialog_notification_settings_exceptions(
-        scope_, filter_scope_, compare_sound_, get_tries() < 3, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(
-        td_->dialog_manager_->get_chats_object(-1, dialog_ids_, "GetChatNotificationSettingsExceptionsRequest"));
-  }
-
- public:
-  GetChatNotificationSettingsExceptionsRequest(ActorShared<Td> td, uint64 request_id, NotificationSettingsScope scope,
-                                               bool filter_scope, bool compare_sound)
-      : RequestActor(std::move(td), request_id)
-      , scope_(scope)
-      , filter_scope_(filter_scope)
-      , compare_sound_(compare_sound) {
-    set_tries(3);
-  }
-};
-
-class GetScopeNotificationSettingsRequest final : public RequestActor<> {
-  NotificationSettingsScope scope_;
-
-  const ScopeNotificationSettings *notification_settings_ = nullptr;
-
-  void do_run(Promise<Unit> &&promise) final {
-    notification_settings_ =
-        td_->notification_settings_manager_->get_scope_notification_settings(scope_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    CHECK(notification_settings_ != nullptr);
-    send_result(get_scope_notification_settings_object(notification_settings_));
-  }
-
- public:
-  GetScopeNotificationSettingsRequest(ActorShared<Td> td, uint64 request_id, NotificationSettingsScope scope)
-      : RequestActor(std::move(td), request_id), scope_(scope) {
-  }
-};
-
-class GetStickersRequest final : public RequestActor<> {
-  StickerType sticker_type_;
-  string query_;
-  int32 limit_;
-  DialogId dialog_id_;
-
-  vector<FileId> sticker_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_ids_ = td_->stickers_manager_->get_stickers(sticker_type_, query_, limit_, dialog_id_, get_tries() < 2,
-                                                        std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_stickers_object(sticker_ids_));
-  }
-
- public:
-  GetStickersRequest(ActorShared<Td> td, uint64 request_id, StickerType sticker_type, string &&query, int32 limit,
-                     int64 dialog_id)
-      : RequestActor(std::move(td), request_id)
-      , sticker_type_(sticker_type)
-      , query_(std::move(query))
-      , limit_(limit)
-      , dialog_id_(dialog_id) {
-    set_tries(4);
-  }
-};
-
-class GetAllStickerEmojisRequest final : public RequestActor<> {
-  StickerType sticker_type_;
-  string query_;
-  DialogId dialog_id_;
-  bool return_only_main_emoji_;
-
-  vector<FileId> sticker_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_ids_ = td_->stickers_manager_->get_stickers(sticker_type_, query_, 1000000, dialog_id_, get_tries() < 2,
-                                                        std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_sticker_emojis_object(sticker_ids_, return_only_main_emoji_));
-  }
-
- public:
-  GetAllStickerEmojisRequest(ActorShared<Td> td, uint64 request_id, StickerType sticker_type, string &&query,
-                             int64 dialog_id, bool return_only_main_emoji)
-      : RequestActor(std::move(td), request_id)
-      , sticker_type_(sticker_type)
-      , query_(std::move(query))
-      , dialog_id_(dialog_id)
-      , return_only_main_emoji_(return_only_main_emoji) {
-    set_tries(4);
-  }
-};
-
-class GetInstalledStickerSetsRequest final : public RequestActor<> {
-  StickerType sticker_type_;
-
-  vector<StickerSetId> sticker_set_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_set_ids_ = td_->stickers_manager_->get_installed_sticker_sets(sticker_type_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_sticker_sets_object(-1, sticker_set_ids_, 1));
-  }
-
- public:
-  GetInstalledStickerSetsRequest(ActorShared<Td> td, uint64 request_id, StickerType sticker_type)
-      : RequestActor(std::move(td), request_id), sticker_type_(sticker_type) {
-  }
-};
-
-class GetArchivedStickerSetsRequest final : public RequestActor<> {
-  StickerType sticker_type_;
-  StickerSetId offset_sticker_set_id_;
-  int32 limit_;
-
-  int32 total_count_ = -1;
-  vector<StickerSetId> sticker_set_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    std::tie(total_count_, sticker_set_ids_) = td_->stickers_manager_->get_archived_sticker_sets(
-        sticker_type_, offset_sticker_set_id_, limit_, get_tries() < 2, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_sticker_sets_object(total_count_, sticker_set_ids_, 1));
-  }
-
- public:
-  GetArchivedStickerSetsRequest(ActorShared<Td> td, uint64 request_id, StickerType sticker_type,
-                                int64 offset_sticker_set_id, int32 limit)
-      : RequestActor(std::move(td), request_id)
-      , sticker_type_(sticker_type)
-      , offset_sticker_set_id_(offset_sticker_set_id)
-      , limit_(limit) {
-  }
-};
-
-class GetTrendingStickerSetsRequest final : public RequestActor<> {
-  td_api::object_ptr<td_api::trendingStickerSets> result_;
-  StickerType sticker_type_;
-  int32 offset_;
-  int32 limit_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    result_ = td_->stickers_manager_->get_featured_sticker_sets(sticker_type_, offset_, limit_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(std::move(result_));
-  }
-
- public:
-  GetTrendingStickerSetsRequest(ActorShared<Td> td, uint64 request_id, StickerType sticker_type, int32 offset,
-                                int32 limit)
-      : RequestActor(std::move(td), request_id), sticker_type_(sticker_type), offset_(offset), limit_(limit) {
-    set_tries(3);
-  }
-};
-
-class GetAttachedStickerSetsRequest final : public RequestActor<> {
-  FileId file_id_;
-
-  vector<StickerSetId> sticker_set_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_set_ids_ = td_->stickers_manager_->get_attached_sticker_sets(file_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_sticker_sets_object(-1, sticker_set_ids_, 5));
-  }
-
- public:
-  GetAttachedStickerSetsRequest(ActorShared<Td> td, uint64 request_id, int32 file_id)
-      : RequestActor(std::move(td), request_id), file_id_(file_id, 0) {
-  }
-};
-
-class GetStickerSetRequest final : public RequestActor<> {
-  StickerSetId set_id_;
-
-  StickerSetId sticker_set_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_set_id_ = td_->stickers_manager_->get_sticker_set(set_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_sticker_set_object(sticker_set_id_));
-  }
-
- public:
-  GetStickerSetRequest(ActorShared<Td> td, uint64 request_id, int64 set_id)
-      : RequestActor(std::move(td), request_id), set_id_(set_id) {
-    set_tries(3);
-  }
-};
-
-class SearchStickerSetRequest final : public RequestActor<> {
-  string name_;
-  bool ignore_cache_;
-
-  StickerSetId sticker_set_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_set_id_ =
-        td_->stickers_manager_->search_sticker_set(name_, ignore_cache_ && get_tries() >= 3, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_sticker_set_object(sticker_set_id_));
-  }
-
- public:
-  SearchStickerSetRequest(ActorShared<Td> td, uint64 request_id, string &&name, bool ignore_cache)
-      : RequestActor(std::move(td), request_id), name_(std::move(name)), ignore_cache_(ignore_cache) {
-    set_tries(3);
-  }
-};
-
-class SearchInstalledStickerSetsRequest final : public RequestActor<> {
-  StickerType sticker_type_;
-  string query_;
-  int32 limit_;
-
-  std::pair<int32, vector<StickerSetId>> sticker_set_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_set_ids_ =
-        td_->stickers_manager_->search_installed_sticker_sets(sticker_type_, query_, limit_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_sticker_sets_object(sticker_set_ids_.first, sticker_set_ids_.second, 5));
-  }
-
- public:
-  SearchInstalledStickerSetsRequest(ActorShared<Td> td, uint64 request_id, StickerType sticker_type, string &&query,
-                                    int32 limit)
-      : RequestActor(std::move(td), request_id), sticker_type_(sticker_type), query_(std::move(query)), limit_(limit) {
-  }
-};
-
-class SearchStickerSetsRequest final : public RequestActor<> {
-  StickerType sticker_type_;
-  string query_;
-
-  vector<StickerSetId> sticker_set_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_set_ids_ = td_->stickers_manager_->search_sticker_sets(sticker_type_, query_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_sticker_sets_object(-1, sticker_set_ids_, 5));
-  }
-
- public:
-  SearchStickerSetsRequest(ActorShared<Td> td, uint64 request_id, StickerType sticker_type, string &&query)
-      : RequestActor(std::move(td), request_id), sticker_type_(sticker_type), query_(std::move(query)) {
-  }
-};
-
-class ChangeStickerSetRequest final : public RequestOnceActor {
-  StickerSetId set_id_;
-  bool is_installed_;
-  bool is_archived_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->stickers_manager_->change_sticker_set(set_id_, is_installed_, is_archived_, std::move(promise));
-  }
-
- public:
-  ChangeStickerSetRequest(ActorShared<Td> td, uint64 request_id, int64 set_id, bool is_installed, bool is_archived)
-      : RequestOnceActor(std::move(td), request_id)
-      , set_id_(set_id)
-      , is_installed_(is_installed)
-      , is_archived_(is_archived) {
-    set_tries(4);
-  }
-};
-
-class GetRecentStickersRequest final : public RequestActor<> {
-  bool is_attached_;
-
-  vector<FileId> sticker_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_ids_ = td_->stickers_manager_->get_recent_stickers(is_attached_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_stickers_object(sticker_ids_));
-  }
-
- public:
-  GetRecentStickersRequest(ActorShared<Td> td, uint64 request_id, bool is_attached)
-      : RequestActor(std::move(td), request_id), is_attached_(is_attached) {
-  }
-};
-
-class AddRecentStickerRequest final : public RequestActor<> {
-  bool is_attached_;
-  td_api::object_ptr<td_api::InputFile> input_file_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->stickers_manager_->add_recent_sticker(is_attached_, input_file_, std::move(promise));
-  }
-
- public:
-  AddRecentStickerRequest(ActorShared<Td> td, uint64 request_id, bool is_attached,
-                          td_api::object_ptr<td_api::InputFile> &&input_file)
-      : RequestActor(std::move(td), request_id), is_attached_(is_attached), input_file_(std::move(input_file)) {
-    set_tries(3);
-  }
-};
-
-class RemoveRecentStickerRequest final : public RequestActor<> {
-  bool is_attached_;
-  td_api::object_ptr<td_api::InputFile> input_file_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->stickers_manager_->remove_recent_sticker(is_attached_, input_file_, std::move(promise));
-  }
-
- public:
-  RemoveRecentStickerRequest(ActorShared<Td> td, uint64 request_id, bool is_attached,
-                             td_api::object_ptr<td_api::InputFile> &&input_file)
-      : RequestActor(std::move(td), request_id), is_attached_(is_attached), input_file_(std::move(input_file)) {
-    set_tries(3);
-  }
-};
-
-class ClearRecentStickersRequest final : public RequestActor<> {
-  bool is_attached_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->stickers_manager_->clear_recent_stickers(is_attached_, std::move(promise));
-  }
-
- public:
-  ClearRecentStickersRequest(ActorShared<Td> td, uint64 request_id, bool is_attached)
-      : RequestActor(std::move(td), request_id), is_attached_(is_attached) {
-    set_tries(3);
-  }
-};
-
-class GetFavoriteStickersRequest final : public RequestActor<> {
-  vector<FileId> sticker_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    sticker_ids_ = td_->stickers_manager_->get_favorite_stickers(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->stickers_manager_->get_stickers_object(sticker_ids_));
-  }
-
- public:
-  GetFavoriteStickersRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class AddFavoriteStickerRequest final : public RequestOnceActor {
-  td_api::object_ptr<td_api::InputFile> input_file_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->stickers_manager_->add_favorite_sticker(input_file_, std::move(promise));
-  }
-
- public:
-  AddFavoriteStickerRequest(ActorShared<Td> td, uint64 request_id, td_api::object_ptr<td_api::InputFile> &&input_file)
-      : RequestOnceActor(std::move(td), request_id), input_file_(std::move(input_file)) {
-    set_tries(3);
-  }
-};
-
-class RemoveFavoriteStickerRequest final : public RequestOnceActor {
-  td_api::object_ptr<td_api::InputFile> input_file_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->stickers_manager_->remove_favorite_sticker(input_file_, std::move(promise));
-  }
-
- public:
-  RemoveFavoriteStickerRequest(ActorShared<Td> td, uint64 request_id,
-                               td_api::object_ptr<td_api::InputFile> &&input_file)
-      : RequestOnceActor(std::move(td), request_id), input_file_(std::move(input_file)) {
-    set_tries(3);
-  }
-};
-
-class GetStickerEmojisRequest final : public RequestActor<> {
-  td_api::object_ptr<td_api::InputFile> input_file_;
-
-  vector<string> emojis_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    emojis_ = td_->stickers_manager_->get_sticker_emojis(input_file_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_api::make_object<td_api::emojis>(std::move(emojis_)));
-  }
-
- public:
-  GetStickerEmojisRequest(ActorShared<Td> td, uint64 request_id, td_api::object_ptr<td_api::InputFile> &&input_file)
-      : RequestActor(std::move(td), request_id), input_file_(std::move(input_file)) {
-    set_tries(3);
-  }
-};
-
-class SearchEmojisRequest final : public RequestActor<> {
-  string text_;
-  vector<string> input_language_codes_;
-
-  vector<std::pair<string, string>> emoji_keywords_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    emoji_keywords_ =
-        td_->stickers_manager_->search_emojis(text_, input_language_codes_, get_tries() < 2, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_api::make_object<td_api::emojiKeywords>(
-        transform(emoji_keywords_, [](const std::pair<string, string> &emoji_keyword) {
-          return td_api::make_object<td_api::emojiKeyword>(emoji_keyword.first, emoji_keyword.second);
-        })));
-  }
-
- public:
-  SearchEmojisRequest(ActorShared<Td> td, uint64 request_id, string &&text, vector<string> &&input_language_codes)
-      : RequestActor(std::move(td), request_id)
-      , text_(std::move(text))
-      , input_language_codes_(std::move(input_language_codes)) {
-    set_tries(3);
-  }
-};
-
-class GetKeywordEmojisRequest final : public RequestActor<> {
-  string text_;
-  vector<string> input_language_codes_;
-
-  vector<string> emojis_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    emojis_ =
-        td_->stickers_manager_->get_keyword_emojis(text_, input_language_codes_, get_tries() < 2, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_api::make_object<td_api::emojis>(std::move(emojis_)));
-  }
-
- public:
-  GetKeywordEmojisRequest(ActorShared<Td> td, uint64 request_id, string &&text, vector<string> &&input_language_codes)
-      : RequestActor(std::move(td), request_id)
-      , text_(std::move(text))
-      , input_language_codes_(std::move(input_language_codes)) {
-    set_tries(3);
-  }
-};
-
-class GetSavedAnimationsRequest final : public RequestActor<> {
-  vector<FileId> animation_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    animation_ids_ = td_->animations_manager_->get_saved_animations(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_api::make_object<td_api::animations>(transform(animation_ids_, [td = td_](FileId animation_id) {
-      return td->animations_manager_->get_animation_object(animation_id);
-    })));
-  }
-
- public:
-  GetSavedAnimationsRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class AddSavedAnimationRequest final : public RequestOnceActor {
-  td_api::object_ptr<td_api::InputFile> input_file_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->animations_manager_->add_saved_animation(input_file_, std::move(promise));
-  }
-
- public:
-  AddSavedAnimationRequest(ActorShared<Td> td, uint64 request_id, td_api::object_ptr<td_api::InputFile> &&input_file)
-      : RequestOnceActor(std::move(td), request_id), input_file_(std::move(input_file)) {
-    set_tries(3);
-  }
-};
-
-class RemoveSavedAnimationRequest final : public RequestOnceActor {
-  td_api::object_ptr<td_api::InputFile> input_file_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->animations_manager_->remove_saved_animation(input_file_, std::move(promise));
-  }
-
- public:
-  RemoveSavedAnimationRequest(ActorShared<Td> td, uint64 request_id, td_api::object_ptr<td_api::InputFile> &&input_file)
-      : RequestOnceActor(std::move(td), request_id), input_file_(std::move(input_file)) {
-    set_tries(3);
-  }
-};
-
-class GetSavedNotificationSoundRequest final : public RequestActor<> {
-  int64 ringtone_id_;
-  FileId ringtone_file_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    ringtone_file_id_ = td_->notification_settings_manager_->get_saved_ringtone(ringtone_id_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->audios_manager_->get_notification_sound_object(ringtone_file_id_));
-  }
-
- public:
-  GetSavedNotificationSoundRequest(ActorShared<Td> td, uint64 request_id, int64 ringtone_id)
-      : RequestActor(std::move(td), request_id), ringtone_id_(ringtone_id) {
-  }
-};
-
-class GetSavedNotificationSoundsRequest final : public RequestActor<> {
-  vector<FileId> ringtone_file_ids_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    ringtone_file_ids_ = td_->notification_settings_manager_->get_saved_ringtones(std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_api::make_object<td_api::notificationSounds>(
-        transform(ringtone_file_ids_, [td = td_](FileId ringtone_file_id) {
-          return td->audios_manager_->get_notification_sound_object(ringtone_file_id);
-        })));
-  }
-
- public:
-  GetSavedNotificationSoundsRequest(ActorShared<Td> td, uint64 request_id) : RequestActor(std::move(td), request_id) {
-  }
-};
-
-class RemoveSavedNotificationSoundRequest final : public RequestOnceActor {
-  int64 ringtone_id_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    td_->notification_settings_manager_->remove_saved_ringtone(ringtone_id_, std::move(promise));
-  }
-
- public:
-  RemoveSavedNotificationSoundRequest(ActorShared<Td> td, uint64 request_id, int64 ringtone_id)
-      : RequestOnceActor(std::move(td), request_id), ringtone_id_(ringtone_id) {
-    set_tries(3);
-  }
-};
-
-class SearchBackgroundRequest final : public RequestActor<> {
-  string name_;
-
-  std::pair<BackgroundId, BackgroundType> background_;
-
-  void do_run(Promise<Unit> &&promise) final {
-    background_ = td_->background_manager_->search_background(name_, std::move(promise));
-  }
-
-  void do_send_result() final {
-    send_result(td_->background_manager_->get_background_object(background_.first, false, &background_.second));
-  }
-
- public:
-  SearchBackgroundRequest(ActorShared<Td> td, uint64 request_id, string &&name)
-      : RequestActor(std::move(td), request_id), name_(std::move(name)) {
-    set_tries(3);
-  }
-};
-
-Requests::Requests(Td *td) : td_(td), td_actor_(td->actor_id(td)) {
-}
-
-void Requests::run_request(uint64 id, td_api::object_ptr<td_api::Function> &&function) {
-  CHECK(td_ != nullptr);
-  downcast_call(*function, [this, id](auto &request) { this->on_request(id, request); });
-}
-
-void Requests::send_error_raw(uint64 id, int32 code, CSlice error) {
-  send_closure(td_actor_, &Td::send_error_impl, id, td_api::make_object<td_api::error>(code, error.str()));
-}
-
-void Requests::answer_ok_query(uint64 id, Status status) {
-  if (status.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, std::move(status));
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-  }
-}
-
-Promise<Unit> Requests::create_ok_request_promise(uint64 id) {
-  return PromiseCreator::lambda([actor_id = td_actor_, id](Result<Unit> result) {
-    if (result.is_error()) {
-      send_closure(actor_id, &Td::send_error, id, result.move_as_error());
-    } else {
-      send_closure(actor_id, &Td::send_result, id, td_api::make_object<td_api::ok>());
-    }
-  });
-}
-
-Promise<string> Requests::create_text_request_promise(uint64 id) {
-  return PromiseCreator::lambda([actor_id = td_actor_, id](Result<string> result) mutable {
-    if (result.is_error()) {
-      send_closure(actor_id, &Td::send_error, id, result.move_as_error());
-    } else {
-      send_closure(actor_id, &Td::send_result, id, td_api::make_object<td_api::text>(result.move_as_ok()));
-    }
-  });
-}
-
-Promise<string> Requests::create_http_url_request_promise(uint64 id) {
-  return PromiseCreator::lambda([actor_id = td_actor_, id](Result<string> result) mutable {
-    if (result.is_error()) {
-      send_closure(actor_id, &Td::send_error, id, result.move_as_error());
-    } else {
-      send_closure(actor_id, &Td::send_result, id, td_api::make_object<td_api::httpUrl>(result.move_as_ok()));
-    }
-  });
-}
-
-#define CLEAN_INPUT_STRING(field_name)                                  \
-  if (!clean_input_string(field_name)) {                                \
-    return send_error_raw(id, 400, "Strings must be encoded in UTF-8"); \
-  }
-#define CHECK_IS_BOT()                                              \
-  if (!td_->auth_manager_->is_bot()) {                              \
-    return send_error_raw(id, 400, "Only bots can use the method"); \
-  }
-#define CHECK_IS_USER()                                                    \
-  if (td_->auth_manager_->is_bot()) {                                      \
-    return send_error_raw(id, 400, "The method is not available to bots"); \
-  }
-#define CHECK_IS_USER_OR_BUSINESS()                                              \
-  if (td_->auth_manager_->is_bot() && request.business_connection_id_.empty()) { \
-    return send_error_raw(id, 400, "The method is not available to bots");       \
-  }
-
-#define CREATE_NO_ARGS_REQUEST(name)                                                \
-  auto slot_id = td_->request_actors_.create(ActorOwn<>(), Td::RequestActorIdType); \
-  td_->inc_request_actor_refcnt();                                                  \
-  *td_->request_actors_.get(slot_id) = create_actor<name>(#name, td_->actor_shared(td_, slot_id), id);
-#define CREATE_REQUEST(name, ...)                                                   \
-  auto slot_id = td_->request_actors_.create(ActorOwn<>(), Td::RequestActorIdType); \
-  td_->inc_request_actor_refcnt();                                                  \
-  *td_->request_actors_.get(slot_id) = create_actor<name>(#name, td_->actor_shared(td_, slot_id), id, __VA_ARGS__);
-
-#define CREATE_REQUEST_PROMISE() auto promise = create_request_promise<std::decay_t<decltype(request)>::ReturnType>(id)
-#define CREATE_OK_REQUEST_PROMISE()                                                                                    \
-  static_assert(std::is_same<std::decay_t<decltype(request)>::ReturnType, td_api::object_ptr<td_api::ok>>::value, ""); \
-  auto promise = create_ok_request_promise(id)
-#define CREATE_TEXT_REQUEST_PROMISE()                                                                               \
-  static_assert(std::is_same<std::decay_t<decltype(request)>::ReturnType, td_api::object_ptr<td_api::text>>::value, \
-                "");                                                                                                \
-  auto promise = create_text_request_promise(id)
-#define CREATE_HTTP_URL_REQUEST_PROMISE()                                                                              \
-  static_assert(std::is_same<std::decay_t<decltype(request)>::ReturnType, td_api::object_ptr<td_api::httpUrl>>::value, \
-                "");                                                                                                   \
-  auto promise = create_http_url_request_promise(id)
-
-void Requests::on_request(uint64 id, const td_api::setTdlibParameters &request) {
-  send_error_raw(id, 400, "Unexpected setTdlibParameters");
-}
-
-void Requests::on_request(uint64 id, td_api::setDatabaseEncryptionKey &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  G()->td_db()->get_binlog()->change_key(TdDb::as_db_key(std::move(request.new_encryption_key_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getAuthorizationState &request) {
-  send_closure(td_->auth_manager_actor_, &AuthManager::get_state, id);
-}
-
-void Requests::on_request(uint64 id, td_api::setAuthenticationPhoneNumber &request) {
-  CLEAN_INPUT_STRING(request.phone_number_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::set_phone_number, id, std::move(request.phone_number_),
-               std::move(request.settings_));
-}
-
-void Requests::on_request(uint64 id, td_api::sendAuthenticationFirebaseSms &request) {
-  CLEAN_INPUT_STRING(request.token_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::set_firebase_token, id, std::move(request.token_));
-}
-
-void Requests::on_request(uint64 id, td_api::reportAuthenticationCodeMissing &request) {
-  CLEAN_INPUT_STRING(request.mobile_network_code_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::report_missing_code, id,
-               std::move(request.mobile_network_code_));
-}
-
-void Requests::on_request(uint64 id, td_api::setAuthenticationEmailAddress &request) {
-  CLEAN_INPUT_STRING(request.email_address_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::set_email_address, id, std::move(request.email_address_));
-}
-
-void Requests::on_request(uint64 id, td_api::resendAuthenticationCode &request) {
-  send_closure(td_->auth_manager_actor_, &AuthManager::resend_authentication_code, id, std::move(request.reason_));
-}
-
-void Requests::on_request(uint64 id, td_api::checkAuthenticationEmailCode &request) {
-  send_closure(td_->auth_manager_actor_, &AuthManager::check_email_code, id,
-               EmailVerification(std::move(request.code_)));
-}
-
-void Requests::on_request(uint64 id, td_api::checkAuthenticationCode &request) {
-  CLEAN_INPUT_STRING(request.code_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::check_code, id, std::move(request.code_));
-}
-
-void Requests::on_request(uint64 id, td_api::registerUser &request) {
-  CLEAN_INPUT_STRING(request.first_name_);
-  CLEAN_INPUT_STRING(request.last_name_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::register_user, id, std::move(request.first_name_),
-               std::move(request.last_name_), request.disable_notification_);
-}
-
-void Requests::on_request(uint64 id, const td_api::requestQrCodeAuthentication &request) {
-  send_closure(td_->auth_manager_actor_, &AuthManager::request_qr_code_authentication, id,
-               UserId::get_user_ids(request.other_user_ids_));
-}
-
-void Requests::on_request(uint64 id, const td_api::resetAuthenticationEmailAddress &request) {
-  send_closure(td_->auth_manager_actor_, &AuthManager::reset_email_address, id);
-}
-
-void Requests::on_request(uint64 id, td_api::checkAuthenticationPassword &request) {
-  CLEAN_INPUT_STRING(request.password_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::check_password, id, std::move(request.password_));
-}
-
-void Requests::on_request(uint64 id, const td_api::requestAuthenticationPasswordRecovery &request) {
-  send_closure(td_->auth_manager_actor_, &AuthManager::request_password_recovery, id);
-}
-
-void Requests::on_request(uint64 id, td_api::checkAuthenticationPasswordRecoveryCode &request) {
-  CLEAN_INPUT_STRING(request.recovery_code_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::check_password_recovery_code, id,
-               std::move(request.recovery_code_));
-}
-
-void Requests::on_request(uint64 id, td_api::recoverAuthenticationPassword &request) {
-  CLEAN_INPUT_STRING(request.recovery_code_);
-  CLEAN_INPUT_STRING(request.new_password_);
-  CLEAN_INPUT_STRING(request.new_hint_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::recover_password, id, std::move(request.recovery_code_),
-               std::move(request.new_password_), std::move(request.new_hint_));
-}
-
-void Requests::on_request(uint64 id, const td_api::logOut &request) {
-  // will call Td::destroy later
-  send_closure(td_->auth_manager_actor_, &AuthManager::log_out, id);
-}
-
-void Requests::on_request(uint64 id, const td_api::close &request) {
-  // send response before actually closing
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-  send_closure(td_actor_, &Td::close);
-}
-
-void Requests::on_request(uint64 id, const td_api::destroy &request) {
-  // send response before actually destroying
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-  send_closure(td_actor_, &Td::destroy);
-}
-
-void Requests::on_request(uint64 id, td_api::checkAuthenticationBotToken &request) {
-  CLEAN_INPUT_STRING(request.token_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::check_bot_token, id, std::move(request.token_));
-}
-
-void Requests::on_request(uint64 id, td_api::confirmQrCodeAuthentication &request) {
-  CLEAN_INPUT_STRING(request.link_);
-  CREATE_REQUEST_PROMISE();
-  td_->account_manager_->confirm_qr_code_authentication(request.link_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getCurrentState &request) {
-  vector<td_api::object_ptr<td_api::Update>> updates;
-
-  td_->option_manager_->get_current_state(updates);
-
-  auto state = td_->auth_manager_->get_current_authorization_state_object();
-  if (state != nullptr) {
-    updates.push_back(td_api::make_object<td_api::updateAuthorizationState>(std::move(state)));
-  }
-
-  td_->connection_state_manager_->get_current_state(updates);
-
-  if (td_->auth_manager_->is_authorized()) {
-    td_->user_manager_->get_current_state(updates);
-
-    td_->chat_manager_->get_current_state(updates);
-
-    td_->background_manager_->get_current_state(updates);
-
-    td_->animations_manager_->get_current_state(updates);
-
-    td_->attach_menu_manager_->get_current_state(updates);
-
-    td_->stickers_manager_->get_current_state(updates);
-
-    td_->reaction_manager_->get_current_state(updates);
-
-    td_->notification_settings_manager_->get_current_state(updates);
-
-    td_->dialog_filter_manager_->get_current_state(updates);
-
-    td_->messages_manager_->get_current_state(updates);
-
-    td_->dialog_participant_manager_->get_current_state(updates);
-
-    td_->notification_manager_->get_current_state(updates);
-
-    td_->quick_reply_manager_->get_current_state(updates);
-
-    td_->saved_messages_manager_->get_current_state(updates);
-
-    td_->story_manager_->get_current_state(updates);
-
-    td_->suggested_action_manager_->get_current_state(updates);
-
-    td_->transcription_manager_->get_current_state(updates);
-
-    td_->autosave_manager_->get_current_state(updates);
-
-    td_->account_manager_->get_current_state(updates);
-
-    td_->business_connection_manager_->get_current_state(updates);
-
-    td_->terms_of_service_manager_->get_current_state(updates);
-
-    td_->star_manager_->get_current_state(updates);
-
-    // TODO updateFileGenerationStart generation_id:int64 original_path:string destination_path:string conversion:string = Update;
-    // TODO updateCall call:call = Update;
-    // TODO updateGroupCall call:groupCall = Update;
-  }
-
-  // send response synchronously to prevent "Request aborted" or other changes of the current state
-  td_->send_result(id, td_api::make_object<td_api::updates>(std::move(updates)));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPasswordState &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::get_state, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setPassword &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.old_password_);
-  CLEAN_INPUT_STRING(request.new_password_);
-  CLEAN_INPUT_STRING(request.new_hint_);
-  CLEAN_INPUT_STRING(request.new_recovery_email_address_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::set_password, std::move(request.old_password_),
-               std::move(request.new_password_), std::move(request.new_hint_), request.set_recovery_email_address_,
-               std::move(request.new_recovery_email_address_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setLoginEmailAddress &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.new_login_email_address_);
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<SentEmailCode> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_email_address_authentication_code_info_object());
-    }
-  });
-  send_closure(td_->password_manager_, &PasswordManager::set_login_email_address,
-               std::move(request.new_login_email_address_), std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::resendLoginEmailAddressCode &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<SentEmailCode> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_email_address_authentication_code_info_object());
-    }
-  });
-  send_closure(td_->password_manager_, &PasswordManager::resend_login_email_address_code, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkLoginEmailAddressCode &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::check_login_email_address_code,
-               EmailVerification(std::move(request.code_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setRecoveryEmailAddress &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.password_);
-  CLEAN_INPUT_STRING(request.new_recovery_email_address_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::set_recovery_email_address, std::move(request.password_),
-               std::move(request.new_recovery_email_address_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getRecoveryEmailAddress &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.password_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::get_recovery_email_address, std::move(request.password_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkRecoveryEmailAddressCode &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.code_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::check_recovery_email_address_code, std::move(request.code_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::resendRecoveryEmailAddressCode &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::resend_recovery_email_address_code, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::cancelRecoveryEmailAddressVerification &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::cancel_recovery_email_address_verification,
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::requestPasswordRecovery &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<SentEmailCode> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_email_address_authentication_code_info_object());
-    }
-  });
-  send_closure(td_->password_manager_, &PasswordManager::request_password_recovery, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkPasswordRecoveryCode &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.recovery_code_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::check_password_recovery_code,
-               std::move(request.recovery_code_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::recoverPassword &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.recovery_code_);
-  CLEAN_INPUT_STRING(request.new_password_);
-  CLEAN_INPUT_STRING(request.new_hint_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::recover_password, std::move(request.recovery_code_),
-               std::move(request.new_password_), std::move(request.new_hint_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::resetPassword &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::reset_password, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::cancelPasswordReset &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::cancel_password_reset, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getTemporaryPasswordState &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::get_temp_password_state, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createTemporaryPassword &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.password_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::create_temp_password, std::move(request.password_),
-               request.valid_for_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::processPushNotification &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.payload_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->notification_manager(), &NotificationManager::process_push_notification,
-               std::move(request.payload_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::registerDevice &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->device_token_manager_, &DeviceTokenManager::register_device, std::move(request.device_token_),
-               UserId::get_user_ids(request.other_user_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getUserPrivacySettingRules &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->privacy_manager_->get_privacy(std::move(request.setting_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setUserPrivacySettingRules &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->privacy_manager_->set_privacy(std::move(request.setting_), std::move(request.rules_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getDefaultMessageAutoDeleteTime &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<int32> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(td_api::make_object<td_api::messageAutoDeleteTime>(result.ok()));
-    }
-  });
-  td_->account_manager_->get_default_message_ttl(std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setDefaultMessageAutoDeleteTime &request) {
-  CHECK_IS_USER();
-  if (request.message_auto_delete_time_ == nullptr) {
-    return send_error_raw(id, 400, "New default message auto-delete time must be non-empty");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->set_default_message_ttl(request.message_auto_delete_time_->time_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getAccountTtl &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<int32> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(td_api::make_object<td_api::accountTtl>(result.ok()));
-    }
-  });
-  td_->account_manager_->get_account_ttl(std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setAccountTtl &request) {
-  CHECK_IS_USER();
-  if (request.ttl_ == nullptr) {
-    return send_error_raw(id, 400, "New account TTL must be non-empty");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->set_account_ttl(request.ttl_->days_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteAccount &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.reason_);
-  send_closure(td_->auth_manager_actor_, &AuthManager::delete_account, id, request.reason_, request.password_);
-}
-
-void Requests::on_request(uint64 id, td_api::sendPhoneNumberCode &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.phone_number_);
-  CREATE_REQUEST_PROMISE();
-  td_->phone_number_manager_->set_phone_number(std::move(request.phone_number_), std::move(request.settings_),
-                                               std::move(request.type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendPhoneNumberFirebaseSms &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.token_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->phone_number_manager_->send_firebase_sms(std::move(request.token_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::reportPhoneNumberCodeMissing &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.mobile_network_code_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->phone_number_manager_->report_missing_code(std::move(request.mobile_network_code_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::resendPhoneNumberCode &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->phone_number_manager_->resend_authentication_code(std::move(request.reason_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkPhoneNumberCode &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.code_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->phone_number_manager_->check_code(std::move(request.code_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getUserLink &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->account_manager_->get_user_link(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchUserByToken &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.token_);
-  CREATE_REQUEST_PROMISE();
-  td_->account_manager_->import_contact_token(std::move(request.token_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getActiveSessions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->account_manager_->get_active_sessions(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::terminateSession &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->terminate_session(request.session_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::terminateAllOtherSessions &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->terminate_all_other_sessions(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::confirmSession &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->confirm_session(request.session_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSessionCanAcceptCalls &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->toggle_session_can_accept_calls(request.session_id_, request.can_accept_calls_,
-                                                         std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSessionCanAcceptSecretChats &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->toggle_session_can_accept_secret_chats(request.session_id_, request.can_accept_secret_chats_,
-                                                                std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setInactiveSessionTtl &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->set_inactive_session_ttl_days(request.inactive_session_ttl_days_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getConnectedWebsites &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->account_manager_->get_connected_websites(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::disconnectWebsite &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->disconnect_website(request.website_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::disconnectAllWebsites &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->account_manager_->disconnect_all_websites(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMe &request) {
-  CREATE_NO_ARGS_REQUEST(GetMeRequest);
-}
-
-void Requests::on_request(uint64 id, const td_api::getUser &request) {
-  CREATE_REQUEST(GetUserRequest, request.user_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getUserFullInfo &request) {
-  CREATE_REQUEST(GetUserFullInfoRequest, request.user_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getBasicGroup &request) {
-  CREATE_REQUEST(GetGroupRequest, request.basic_group_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getBasicGroupFullInfo &request) {
-  CREATE_REQUEST(GetGroupFullInfoRequest, request.basic_group_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getSupergroup &request) {
-  CREATE_REQUEST(GetSupergroupRequest, request.supergroup_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getSupergroupFullInfo &request) {
-  CREATE_REQUEST(GetSupergroupFullInfoRequest, request.supergroup_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getSecretChat &request) {
-  CREATE_REQUEST(GetSecretChatRequest, request.secret_chat_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getChat &request) {
-  CREATE_REQUEST(GetChatRequest, request.chat_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessage &request) {
-  CREATE_REQUEST(GetMessageRequest, request.chat_id_, request.message_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageLocally &request) {
-  MessageFullId message_full_id(DialogId(request.chat_id_), MessageId(request.message_id_));
-  send_closure(td_actor_, &Td::send_result, id,
-               td_->messages_manager_->get_message_object(message_full_id, "getMessageLocally"));
-}
-
-void Requests::on_request(uint64 id, const td_api::getRepliedMessage &request) {
-  CREATE_REQUEST(GetRepliedMessageRequest, request.chat_id_, request.message_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatPinnedMessage &request) {
-  CREATE_REQUEST(GetChatPinnedMessageRequest, request.chat_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getCallbackQueryMessage &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST(GetCallbackQueryMessageRequest, request.chat_id_, request.message_id_, request.callback_query_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessages &request) {
-  CREATE_REQUEST(GetMessagesRequest, request.chat_id_, request.message_ids_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageProperties &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->get_message_properties(DialogId(request.chat_id_), MessageId(request.message_id_),
-                                                 std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatSponsoredMessages &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->sponsored_message_manager_->get_dialog_sponsored_messages(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::clickChatSponsoredMessage &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->sponsored_message_manager_->click_sponsored_message(DialogId(request.chat_id_), MessageId(request.message_id_),
-                                                           request.is_media_click_, request.from_fullscreen_,
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::reportChatSponsoredMessage &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->sponsored_message_manager_->report_sponsored_message(DialogId(request.chat_id_), MessageId(request.message_id_),
-                                                            request.option_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getSearchSponsoredChats &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST_PROMISE();
-  td_->sponsored_message_manager_->get_search_sponsored_dialogs(request.query_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::viewSponsoredChat &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->sponsored_message_manager_->view_sponsored_dialog(request.sponsored_chat_unique_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::openSponsoredChat &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->sponsored_message_manager_->open_sponsored_dialog(request.sponsored_chat_unique_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::reportSponsoredChat &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->sponsored_message_manager_->report_sponsored_dialog(request.sponsored_chat_unique_id_, request.option_id_,
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageThread &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetMessageThreadRequest, request.chat_id_, request.message_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageReadDate &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->get_message_read_date({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageViewers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->message_query_manager_->get_message_viewers({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                   std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageLink &request) {
-  auto r_message_link = td_->messages_manager_->get_message_link(
-      {DialogId(request.chat_id_), MessageId(request.message_id_)}, request.media_timestamp_, request.for_album_,
-      request.in_message_thread_);
-  if (r_message_link.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_message_link.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id,
-                 td_api::make_object<td_api::messageLink>(r_message_link.ok().first, r_message_link.ok().second));
-  }
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageEmbeddingCode &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetMessageEmbeddingCodeRequest, request.chat_id_, request.message_id_, request.for_album_);
-}
-
-void Requests::on_request(uint64 id, td_api::getMessageLinkInfo &request) {
-  CLEAN_INPUT_STRING(request.url_);
-  CREATE_REQUEST(GetMessageLinkInfoRequest, std::move(request.url_));
-}
-
-void Requests::on_request(uint64 id, td_api::translateText &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.to_language_code_);
-  CREATE_REQUEST_PROMISE();
-  td_->translation_manager_->translate_text(std::move(request.text_), request.to_language_code_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::translateMessageText &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.to_language_code_);
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->translate_message_text({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                 request.to_language_code_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::recognizeSpeech &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->transcription_manager_->recognize_speech({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::rateSpeechRecognition &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->transcription_manager_->rate_speech_recognition({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                       request.is_good_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getFile &request) {
-  auto file_object = td_->file_manager_->get_file_object(FileId(request.file_id_, 0));
-  if (file_object->id_ == 0) {
-    file_object = nullptr;
-  } else {
-    file_object->id_ = request.file_id_;
-  }
-  send_closure(td_actor_, &Td::send_result, id, std::move(file_object));
-}
-
-void Requests::on_request(uint64 id, td_api::getRemoteFile &request) {
-  CLEAN_INPUT_STRING(request.remote_file_id_);
-  auto file_type = request.file_type_ == nullptr ? FileType::Temp : get_file_type(*request.file_type_);
-  auto r_file_id = td_->file_manager_->from_persistent_id(request.remote_file_id_, file_type);
-  if (r_file_id.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_file_id.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, td_->file_manager_->get_file_object(r_file_id.ok()));
-  }
-}
-
-void Requests::on_request(uint64 id, const td_api::getStorageStatistics &request) {
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<FileStats> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_storage_statistics_object());
-    }
-  });
-  send_closure(td_->storage_manager_, &StorageManager::get_storage_stats, false /*need_all_files*/, request.chat_limit_,
-               std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStorageStatisticsFast &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<FileStatsFast> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_storage_statistics_fast_object());
-    }
-  });
-  send_closure(td_->storage_manager_, &StorageManager::get_storage_stats_fast, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getDatabaseStatistics &request) {
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<DatabaseStats> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_database_statistics_object());
-    }
-  });
-  send_closure(td_->storage_manager_, &StorageManager::get_database_stats, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::optimizeStorage &request) {
-  std::vector<FileType> file_types;
-  for (auto &file_type : request.file_types_) {
-    if (file_type == nullptr) {
-      return send_error_raw(id, 400, "File type must be non-empty");
-    }
-
-    file_types.push_back(get_file_type(*file_type));
-  }
-  FileGcParameters parameters(request.size_, request.ttl_, request.count_, request.immunity_delay_,
-                              std::move(file_types), DialogId::get_dialog_ids(request.chat_ids_),
-                              DialogId::get_dialog_ids(request.exclude_chat_ids_), request.chat_limit_);
-
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<FileStats> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_storage_statistics_object());
-    }
-  });
-  send_closure(td_->storage_manager_, &StorageManager::run_gc, std::move(parameters),
-               request.return_deleted_file_statistics_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getNetworkStatistics &request) {
-  if (td_->net_stats_manager_.empty()) {
-    return send_error_raw(id, 400, "Network statistics are disabled");
-  }
-  if (!request.only_current_ && G()->get_option_boolean("disable_persistent_network_statistics")) {
-    return send_error_raw(id, 400, "Persistent network statistics are disabled");
-  }
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<NetworkStats> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_network_statistics_object());
-    }
-  });
-  send_closure(td_->net_stats_manager_, &NetStatsManager::get_network_stats, request.only_current_,
-               std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::resetNetworkStatistics &request) {
-  if (td_->net_stats_manager_.empty()) {
-    return send_error_raw(id, 400, "Network statistics are disabled");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->net_stats_manager_, &NetStatsManager::reset_network_stats);
-  promise.set_value(Unit());
-}
-
-void Requests::on_request(uint64 id, td_api::addNetworkStatistics &request) {
-  if (request.entry_ == nullptr) {
-    return send_error_raw(id, 400, "Network statistics entry must be non-empty");
-  }
-  if (td_->net_stats_manager_.empty()) {
-    return send_error_raw(id, 400, "Network statistics are disabled");
-  }
-
-  NetworkStatsEntry entry;
-  switch (request.entry_->get_id()) {
-    case td_api::networkStatisticsEntryFile::ID: {
-      auto file_entry = move_tl_object_as<td_api::networkStatisticsEntryFile>(request.entry_);
-      entry.is_call = false;
-      if (file_entry->file_type_ != nullptr) {
-        entry.file_type = get_file_type(*file_entry->file_type_);
-      }
-      entry.net_type = get_net_type(file_entry->network_type_);
-      entry.rx = file_entry->received_bytes_;
-      entry.tx = file_entry->sent_bytes_;
-      break;
-    }
-    case td_api::networkStatisticsEntryCall::ID: {
-      auto call_entry = move_tl_object_as<td_api::networkStatisticsEntryCall>(request.entry_);
-      entry.is_call = true;
-      entry.net_type = get_net_type(call_entry->network_type_);
-      entry.rx = call_entry->received_bytes_;
-      entry.tx = call_entry->sent_bytes_;
-      entry.duration = call_entry->duration_;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  if (entry.net_type == NetType::None) {
-    return send_error_raw(id, 400, "Network statistics entry can't be increased for NetworkTypeNone");
-  }
-  if (entry.rx > (static_cast<int64>(1) << 40) || entry.rx < 0) {
-    return send_error_raw(id, 400, "Wrong received bytes value");
-  }
-  if (entry.tx > (static_cast<int64>(1) << 40) || entry.tx < 0) {
-    return send_error_raw(id, 400, "Wrong sent bytes value");
-  }
-  if (entry.count > (1 << 30) || entry.count < 0) {
-    return send_error_raw(id, 400, "Wrong count value");
-  }
-  if (entry.duration > (1 << 30) || entry.duration < 0) {
-    return send_error_raw(id, 400, "Wrong duration value");
-  }
-
-  send_closure(td_->net_stats_manager_, &NetStatsManager::add_network_stats, entry);
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-}
-
-void Requests::on_request(uint64 id, const td_api::setNetworkType &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->state_manager_, &StateManager::on_network, get_net_type(request.type_));
-  promise.set_value(Unit());
-}
-
-void Requests::on_request(uint64 id, const td_api::getAutoDownloadSettingsPresets &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_auto_download_settings_presets(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setAutoDownloadSettings &request) {
-  CHECK_IS_USER();
-  if (request.settings_ == nullptr) {
-    return send_error_raw(id, 400, "New settings must be non-empty");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  set_auto_download_settings(td_, get_net_type(request.type_), get_auto_download_settings(request.settings_),
-                             std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getAutosaveSettings &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->autosave_manager_->get_autosave_settings(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setAutosaveSettings &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->autosave_manager_->set_autosave_settings(std::move(request.scope_), std::move(request.settings_),
-                                                std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::clearAutosaveSettingsExceptions &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->autosave_manager_->clear_autosave_settings_exceptions(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getRecommendedChats &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->channel_recommendation_manager_->get_recommended_channels(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatSimilarChats &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->channel_recommendation_manager_->get_channel_recommendations(DialogId(request.chat_id_), false,
-                                                                    std::move(promise), Auto());
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatSimilarChatCount &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->channel_recommendation_manager_->get_channel_recommendations(DialogId(request.chat_id_), request.return_local_,
-                                                                    Auto(), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::openChatSimilarChat &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->channel_recommendation_manager_->open_channel_recommended_channel(
-      DialogId(request.chat_id_), DialogId(request.opened_chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBotSimilarBots &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->bot_recommendation_manager_->get_bot_recommendations(UserId(request.bot_user_id_), false, std::move(promise),
-                                                            Auto());
-}
-
-void Requests::on_request(uint64 id, const td_api::getBotSimilarBotCount &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->bot_recommendation_manager_->get_bot_recommendations(UserId(request.bot_user_id_), request.return_local_, Auto(),
-                                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::openBotSimilarBot &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_recommendation_manager_->open_bot_recommended_bot(UserId(request.bot_user_id_),
-                                                             UserId(request.opened_bot_user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getTopChats &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->top_dialog_manager_actor_, &TopDialogManager::get_top_dialogs,
-               get_top_dialog_category(request.category_), request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeTopChat &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->top_dialog_manager_actor_, &TopDialogManager::remove_dialog,
-               get_top_dialog_category(request.category_), DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::loadChats &request) {
-  CHECK_IS_USER();
-
-  DialogListId dialog_list_id(request.chat_list_);
-  auto r_offset = td_->messages_manager_->get_dialog_list_last_date(dialog_list_id);
-  if (r_offset.is_error()) {
-    return send_error_raw(id, 400, r_offset.error().message());
-  }
-  auto offset = r_offset.move_as_ok();
-  if (offset == MAX_DIALOG_DATE) {
-    return send_closure(td_actor_, &Td::send_result, id, nullptr);
-  }
-
-  CREATE_REQUEST(LoadChatsRequest, dialog_list_id, offset, request.limit_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getChats &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->get_dialogs_from_list(DialogListId(request.chat_list_), request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::loadSavedMessagesTopics &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->saved_messages_manager_->load_saved_messages_topics(request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSavedMessagesTopicHistory &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->saved_messages_manager_->get_saved_messages_topic_history(
-      td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_), MessageId(request.from_message_id_),
-      request.offset_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSavedMessagesTopicMessageByDate &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->saved_messages_manager_->get_saved_messages_topic_message_by_date(
-      td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_), request.date_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteSavedMessagesTopicHistory &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->saved_messages_manager_->delete_saved_messages_topic_history(
-      td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteSavedMessagesTopicMessagesByDate &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->saved_messages_manager_->delete_saved_messages_topic_messages_by_date(
-      td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_), request.min_date_,
-      request.max_date_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSavedMessagesTopicIsPinned &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->saved_messages_manager_->toggle_saved_messages_topic_is_pinned(
-      td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_), request.is_pinned_,
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setPinnedSavedMessagesTopics &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->saved_messages_manager_->set_pinned_saved_messages_topics(
-      td_->saved_messages_manager_->get_topic_ids(request.saved_messages_topic_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchPublicChat &request) {
-  CLEAN_INPUT_STRING(request.username_);
-  CREATE_REQUEST(SearchPublicChatRequest, request.username_);
-}
-
-void Requests::on_request(uint64 id, td_api::searchPublicChats &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchPublicChatsRequest, request.query_);
-}
-
-void Requests::on_request(uint64 id, td_api::searchChats &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchChatsRequest, request.query_, request.limit_);
-}
-
-void Requests::on_request(uint64 id, td_api::searchChatsOnServer &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchChatsOnServerRequest, request.query_, request.limit_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getGroupsInCommon &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetGroupsInCommonRequest, request.user_id_, request.offset_chat_id_, request.limit_);
-}
-
-void Requests::on_request(uint64 id, td_api::checkChatUsername &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.username_);
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda(
-      [promise = std::move(promise)](Result<DialogManager::CheckDialogUsernameResult> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(DialogManager::get_check_chat_username_result_object(result.ok()));
-        }
-      });
-  td_->dialog_manager_->check_dialog_username(DialogId(request.chat_id_), request.username_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getCreatedPublicChats &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->chat_manager_->get_created_public_dialogs(get_public_dialog_type(request.type_), std::move(promise), false);
-}
-
-void Requests::on_request(uint64 id, const td_api::checkCreatedPublicChatsLimit &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->check_created_public_dialogs_limit(get_public_dialog_type(request.type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSuitableDiscussionChats &request) {
-  CHECK_IS_USER();
-  CREATE_NO_ARGS_REQUEST(GetSuitableDiscussionChatsRequest);
-}
-
-void Requests::on_request(uint64 id, const td_api::getInactiveSupergroupChats &request) {
-  CHECK_IS_USER();
-  CREATE_NO_ARGS_REQUEST(GetInactiveSupergroupChatsRequest);
-}
-
-void Requests::on_request(uint64 id, const td_api::getSuitablePersonalChats &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->chat_manager_->get_created_public_dialogs(PublicDialogType::ForPersonalDialog, std::move(promise), false);
-}
-
-void Requests::on_request(uint64 id, td_api::searchRecentlyFoundChats &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchRecentlyFoundChatsRequest, request.query_, request.limit_);
-}
-
-void Requests::on_request(uint64 id, const td_api::addRecentlyFoundChat &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->dialog_manager_->add_recently_found_dialog(DialogId(request.chat_id_)));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeRecentlyFoundChat &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->dialog_manager_->remove_recently_found_dialog(DialogId(request.chat_id_)));
-}
-
-void Requests::on_request(uint64 id, const td_api::clearRecentlyFoundChats &request) {
-  CHECK_IS_USER();
-  td_->dialog_manager_->clear_recently_found_dialogs();
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-}
-
-void Requests::on_request(uint64 id, const td_api::getRecentlyOpenedChats &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetRecentlyOpenedChatsRequest, request.limit_);
-}
-
-void Requests::on_request(uint64 id, const td_api::openChat &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->open_dialog(DialogId(request.chat_id_)));
-}
-
-void Requests::on_request(uint64 id, const td_api::closeChat &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->close_dialog(DialogId(request.chat_id_)));
-}
-
-void Requests::on_request(uint64 id, const td_api::viewMessages &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->view_messages(DialogId(request.chat_id_),
-                                                            MessageId::get_message_ids(request.message_ids_),
-                                                            get_message_source(request.source_), request.force_read_));
-}
-
-void Requests::on_request(uint64 id, const td_api::openMessageContent &request) {
-  CHECK_IS_USER();
-  answer_ok_query(
-      id, td_->messages_manager_->open_message_content({DialogId(request.chat_id_), MessageId(request.message_id_)}));
-}
-
-void Requests::on_request(uint64 id, const td_api::clickAnimatedEmojiMessage &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->click_animated_emoji_message({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                       std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getInternalLink &request) {
-  auto r_link = LinkManager::get_internal_link(request.type_, !request.is_http_);
-  if (r_link.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_link.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::httpUrl>(r_link.move_as_ok()));
-  }
-}
-
-void Requests::on_request(uint64 id, const td_api::getInternalLinkType &request) {
-  auto type = LinkManager::parse_internal_link(request.link_);
-  send_closure(td_actor_, &Td::send_result, id, type == nullptr ? nullptr : type->get_internal_link_type_object());
-}
-
-void Requests::on_request(uint64 id, td_api::getExternalLinkInfo &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.link_);
-  CREATE_REQUEST_PROMISE();
-  td_->link_manager_->get_external_link_info(std::move(request.link_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getExternalLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.link_);
-  CREATE_REQUEST_PROMISE();
-  td_->link_manager_->get_link_login_url(request.link_, request.allow_write_access_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatHistory &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetChatHistoryRequest, request.chat_id_, request.from_message_id_, request.offset_, request.limit_,
-                 request.only_local_);
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteChatHistory &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->delete_dialog_history(DialogId(request.chat_id_), request.remove_from_chat_list_,
-                                                request.revoke_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteChat &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  DialogId dialog_id(request.chat_id_);
-  auto query_promise = [actor_id = td_->messages_manager_actor_.get(), dialog_id,
-                        promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      send_closure(actor_id, &MessagesManager::on_dialog_deleted, dialog_id, std::move(promise));
-    }
-  };
-  td_->dialog_manager_->delete_dialog(dialog_id, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageThreadHistory &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetMessageThreadHistoryRequest, request.chat_id_, request.message_id_, request.from_message_id_,
-                 request.offset_, request.limit_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatMessageCalendar &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->get_dialog_message_calendar(
-      DialogId(request.chat_id_), td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_),
-      MessageId(request.from_message_id_), get_message_search_filter(request.filter_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchChatMessages &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchChatMessagesRequest, request.chat_id_, std::move(request.query_), std::move(request.sender_id_),
-                 request.from_message_id_, request.offset_, request.limit_, std::move(request.filter_),
-                 request.message_thread_id_,
-                 td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_), ReactionType());
-}
-
-void Requests::on_request(uint64 id, td_api::searchSecretMessages &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->offline_search_messages(DialogId(request.chat_id_), std::move(request.query_),
-                                                  std::move(request.offset_), request.limit_,
-                                                  get_message_search_filter(request.filter_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchMessages &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->message_query_manager_->search_messages(
-      DialogListId(request.chat_list_), request.chat_list_ == nullptr, std::move(request.query_),
-      std::move(request.offset_), request.limit_, get_message_search_filter(request.filter_),
-      std::move(request.chat_type_filter_), request.min_date_, request.max_date_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchSavedMessages &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchChatMessagesRequest, td_->dialog_manager_->get_my_dialog_id().get(), std::move(request.query_),
-                 nullptr, request.from_message_id_, request.offset_, request.limit_, nullptr, 0,
-                 td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_),
-                 ReactionType(request.tag_));
-}
-
-void Requests::on_request(uint64 id, const td_api::searchCallMessages &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->search_call_messages(request.offset_, request.limit_, request.only_missed_,
-                                               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchOutgoingDocumentMessages &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST_PROMISE();
-  td_->message_query_manager_->search_outgoing_document_messages(request.query_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchPublicMessagesByTag &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.tag_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->message_query_manager_->search_hashtag_posts(std::move(request.tag_), std::move(request.offset_), request.limit_,
-                                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchPublicStoriesByTag &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.tag_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->search_hashtag_posts(DialogId(request.story_sender_chat_id_), std::move(request.tag_),
-                                            std::move(request.offset_), request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchPublicStoriesByLocation &request) {
-  CHECK_IS_USER();
-  if (request.address_ == nullptr) {
-    return send_error_raw(id, 400, "Address must be non-empty");
-  }
-  CLEAN_INPUT_STRING(request.address_->country_code_);
-  CLEAN_INPUT_STRING(request.address_->state_);
-  CLEAN_INPUT_STRING(request.address_->city_);
-  CLEAN_INPUT_STRING(request.address_->street_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->search_location_posts(std::move(request.address_), std::move(request.offset_), request.limit_,
-                                             std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchPublicStoriesByVenue &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.venue_provider_);
-  CLEAN_INPUT_STRING(request.venue_id_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->search_venue_posts(std::move(request.venue_provider_), std::move(request.venue_id_),
-                                          std::move(request.offset_), request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getSearchedForTags &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.tag_prefix_);
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<vector<string>> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(td_api::make_object<td_api::hashtags>(result.move_as_ok()));
-    }
-  });
-  send_closure(request.tag_prefix_[0] == '$' ? td_->cashtag_search_hints_ : td_->hashtag_search_hints_,
-               &HashtagHints::query, std::move(request.tag_prefix_), request.limit_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::removeSearchedForTag &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.tag_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(request.tag_[0] == '$' ? td_->cashtag_search_hints_ : td_->hashtag_search_hints_,
-               &HashtagHints::remove_hashtag, std::move(request.tag_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::clearSearchedForTags &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(request.clear_cashtags_ ? td_->cashtag_search_hints_ : td_->hashtag_search_hints_, &HashtagHints::clear,
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteAllCallMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->delete_all_call_messages(request.revoke_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::searchChatRecentLocationMessages &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->message_query_manager_->search_dialog_recent_location_messages(DialogId(request.chat_id_), request.limit_,
-                                                                      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatMessageByDate &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->get_dialog_message_by_date(DialogId(request.chat_id_), request.date_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatSparseMessagePositions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->get_dialog_sparse_message_positions(
-      DialogId(request.chat_id_), td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_),
-      get_message_search_filter(request.filter_), MessageId(request.from_message_id_), request.limit_,
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatMessageCount &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<int32> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(td_api::make_object<td_api::count>(result.move_as_ok()));
-    }
-  });
-  td_->messages_manager_->get_dialog_message_count(
-      DialogId(request.chat_id_), td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_),
-      get_message_search_filter(request.filter_), request.return_local_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatMessagePosition &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<int32> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(td_api::make_object<td_api::count>(result.move_as_ok()));
-    }
-  });
-  td_->messages_manager_->get_dialog_message_position(
-      {DialogId(request.chat_id_), MessageId(request.message_id_)}, get_message_search_filter(request.filter_),
-      MessageId(request.message_thread_id_),
-      td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_), std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatScheduledMessages &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetChatScheduledMessagesRequest, request.chat_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getEmojiReaction &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->reaction_manager_->get_emoji_reaction(request.emoji_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getCustomEmojiReactionAnimations &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_custom_emoji_reaction_generic_animations(false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageAvailableReactions &request) {
-  CHECK_IS_USER();
-  auto r_reactions = td_->messages_manager_->get_message_available_reactions(
-      {DialogId(request.chat_id_), MessageId(request.message_id_)}, request.row_size_);
-  if (r_reactions.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_reactions.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_reactions.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, const td_api::clearRecentReactions &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->reaction_manager_->clear_recent_reactions(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::addMessageReaction &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->add_message_reaction({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                               ReactionType(request.reaction_type_), request.is_big_,
-                                               request.update_recent_reactions_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatAvailablePaidMessageReactionSenders &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->message_query_manager_->get_paid_message_reaction_senders(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::addPendingPaidMessageReaction &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->add_paid_message_reaction({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                    request.star_count_, request.type_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::commitPendingPaidMessageReactions &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->commit_paid_message_reactions({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                        std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removePendingPaidMessageReactions &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->remove_paid_message_reactions({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                        std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setPaidMessageReactionType &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->set_paid_message_reaction_type({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                         request.type_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeMessageReaction &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->remove_message_reaction({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                  ReactionType(request.reaction_type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setMessageReactions &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  set_message_reactions(td_, {DialogId(request.chat_id_), MessageId(request.message_id_)},
-                        ReactionType::get_reaction_types(request.reaction_types_), request.is_big_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getMessageAddedReactions &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  get_message_added_reactions(td_, {DialogId(request.chat_id_), MessageId(request.message_id_)},
-                              ReactionType(request.reaction_type_), std::move(request.offset_), request.limit_,
-                              std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setDefaultReactionType &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->reaction_manager_->set_default_reaction(ReactionType(request.reaction_type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSavedMessagesTags &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->reaction_manager_->get_saved_messages_tags(
-      td_->saved_messages_manager_->get_topic_id(request.saved_messages_topic_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setSavedMessagesTagLabel &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.label_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->reaction_manager_->set_saved_messages_tag_title(ReactionType(request.tag_), std::move(request.label_),
-                                                       std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageEffect &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->reaction_manager_->get_message_effect(MessageEffectId(request.effect_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getMessagePublicForwards &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->statistics_manager_->get_message_public_forwards({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                        std::move(request.offset_), request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getStoryPublicForwards &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->statistics_manager_->get_story_public_forwards(
-      {DialogId(request.story_sender_chat_id_), StoryId(request.story_id_)}, std::move(request.offset_), request.limit_,
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeNotification &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->notification_manager_actor_, &NotificationManager::remove_notification,
-               NotificationGroupId(request.notification_group_id_), NotificationId(request.notification_id_), false,
-               true, std::move(promise), "td_api::removeNotification");
-}
-
-void Requests::on_request(uint64 id, const td_api::removeNotificationGroup &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->notification_manager_actor_, &NotificationManager::remove_notification_group,
-               NotificationGroupId(request.notification_group_id_), NotificationId(request.max_notification_id_),
-               NotificationObjectId(), -1, true, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteMessages &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->delete_messages(DialogId(request.chat_id_), MessageId::get_message_ids(request.message_ids_),
-                                          request.revoke_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteChatMessagesBySender &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, sender_dialog_id, get_message_sender_dialog_id(td_, request.sender_id_, false, false));
-  td_->messages_manager_->delete_dialog_messages_by_sender(DialogId(request.chat_id_), sender_dialog_id,
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteChatMessagesByDate &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->delete_dialog_messages_by_date(DialogId(request.chat_id_), request.min_date_,
-                                                         request.max_date_, request.revoke_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::readAllChatMentions &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->read_all_dialog_mentions(DialogId(request.chat_id_), MessageId(), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::readAllMessageThreadMentions &request) {
-  CHECK_IS_USER();
-  if (request.message_thread_id_ == 0) {
-    return send_error_raw(id, 400, "Invalid message thread identifier specified");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->read_all_dialog_mentions(DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                                                   std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::readAllChatReactions &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->read_all_dialog_reactions(DialogId(request.chat_id_), MessageId(), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::readAllMessageThreadReactions &request) {
-  CHECK_IS_USER();
-  if (request.message_thread_id_ == 0) {
-    return send_error_raw(id, 400, "Invalid message thread identifier specified");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->read_all_dialog_reactions(DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatAvailableMessageSenders &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->get_dialog_send_message_as_dialog_ids(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatMessageSender &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, message_sender_dialog_id,
-                     get_message_sender_dialog_id(td_, request.message_sender_id_, true, false));
-  td_->messages_manager_->set_dialog_default_send_message_as_dialog_id(DialogId(request.chat_id_),
-                                                                       message_sender_dialog_id, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendMessage &request) {
-  auto r_sent_message = td_->messages_manager_->send_message(
-      DialogId(request.chat_id_), MessageId(request.message_thread_id_), std::move(request.reply_to_),
-      std::move(request.options_), std::move(request.reply_markup_), std::move(request.input_message_content_));
-  if (r_sent_message.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_sent_message.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_sent_message.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, td_api::sendMessageAlbum &request) {
-  auto r_messages = td_->messages_manager_->send_message_group(
-      DialogId(request.chat_id_), MessageId(request.message_thread_id_), std::move(request.reply_to_),
-      std::move(request.options_), std::move(request.input_message_contents_));
-  if (r_messages.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_messages.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_messages.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, td_api::sendBotStartMessage &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.parameter_);
-
-  DialogId dialog_id(request.chat_id_);
-  auto r_new_message_id =
-      td_->messages_manager_->send_bot_start_message(UserId(request.bot_user_id_), dialog_id, request.parameter_);
-  if (r_new_message_id.is_error()) {
-    return send_closure(td_actor_, &Td::send_error, id, r_new_message_id.move_as_error());
-  }
-
-  CHECK(r_new_message_id.ok().is_valid() || r_new_message_id.ok().is_valid_scheduled());
-  send_closure(td_actor_, &Td::send_result, id,
-               td_->messages_manager_->get_message_object({dialog_id, r_new_message_id.ok()}, "sendBotStartMessage"));
-}
-
-void Requests::on_request(uint64 id, td_api::sendInlineQueryResultMessage &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.result_id_);
-
-  auto r_sent_message = td_->messages_manager_->send_inline_query_result_message(
-      DialogId(request.chat_id_), MessageId(request.message_thread_id_), std::move(request.reply_to_),
-      std::move(request.options_), request.query_id_, request.result_id_, request.hide_via_bot_);
-  if (r_sent_message.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_sent_message.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_sent_message.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, td_api::addLocalMessage &request) {
-  CHECK_IS_USER();
-
-  DialogId dialog_id(request.chat_id_);
-  auto r_new_message_id = td_->messages_manager_->add_local_message(
-      dialog_id, std::move(request.sender_id_), std::move(request.reply_to_), request.disable_notification_,
-      std::move(request.input_message_content_));
-  if (r_new_message_id.is_error()) {
-    return send_closure(td_actor_, &Td::send_error, id, r_new_message_id.move_as_error());
-  }
-
-  CHECK(r_new_message_id.ok().is_valid());
-  send_closure(td_actor_, &Td::send_result, id,
-               td_->messages_manager_->get_message_object({dialog_id, r_new_message_id.ok()}, "addLocalMessage"));
-}
-
-void Requests::on_request(uint64 id, td_api::editMessageText &request) {
-  CREATE_REQUEST(EditMessageTextRequest, request.chat_id_, request.message_id_, std::move(request.reply_markup_),
-                 std::move(request.input_message_content_));
-}
-
-void Requests::on_request(uint64 id, td_api::editMessageLiveLocation &request) {
-  CREATE_REQUEST(EditMessageLiveLocationRequest, request.chat_id_, request.message_id_,
-                 std::move(request.reply_markup_), std::move(request.location_), request.live_period_, request.heading_,
-                 request.proximity_alert_radius_);
-}
-
-void Requests::on_request(uint64 id, td_api::editMessageMedia &request) {
-  CREATE_REQUEST(EditMessageMediaRequest, request.chat_id_, request.message_id_, std::move(request.reply_markup_),
-                 std::move(request.input_message_content_));
-}
-
-void Requests::on_request(uint64 id, td_api::editMessageCaption &request) {
-  CREATE_REQUEST(EditMessageCaptionRequest, request.chat_id_, request.message_id_, std::move(request.reply_markup_),
-                 std::move(request.caption_), request.show_caption_above_media_);
-}
-
-void Requests::on_request(uint64 id, td_api::editMessageReplyMarkup &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST(EditMessageReplyMarkupRequest, request.chat_id_, request.message_id_,
-                 std::move(request.reply_markup_));
-}
-
-void Requests::on_request(uint64 id, td_api::editInlineMessageText &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.inline_message_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->inline_message_manager_->edit_inline_message_text(request.inline_message_id_, std::move(request.reply_markup_),
-                                                         std::move(request.input_message_content_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editInlineMessageLiveLocation &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.inline_message_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->inline_message_manager_->edit_inline_message_live_location(
-      request.inline_message_id_, std::move(request.reply_markup_), std::move(request.location_), request.live_period_,
-      request.heading_, request.proximity_alert_radius_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editInlineMessageMedia &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.inline_message_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->inline_message_manager_->edit_inline_message_media(request.inline_message_id_, std::move(request.reply_markup_),
-                                                          std::move(request.input_message_content_),
-                                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editInlineMessageCaption &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.inline_message_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->inline_message_manager_->edit_inline_message_caption(
-      request.inline_message_id_, std::move(request.reply_markup_), std::move(request.caption_),
-      request.show_caption_above_media_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editInlineMessageReplyMarkup &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.inline_message_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->inline_message_manager_->edit_inline_message_reply_markup(request.inline_message_id_,
-                                                                 std::move(request.reply_markup_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editMessageSchedulingState &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->edit_message_scheduling_state({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                        std::move(request.scheduling_state_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setMessageFactCheck &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->set_message_fact_check({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                 std::move(request.text_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendBusinessMessage &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->send_message(BusinessConnectionId(std::move(request.business_connection_id_)),
-                                                  DialogId(request.chat_id_), std::move(request.reply_to_),
-                                                  request.disable_notification_, request.protect_content_,
-                                                  MessageEffectId(request.effect_id_), std::move(request.reply_markup_),
-                                                  std::move(request.input_message_content_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendBusinessMessageAlbum &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->send_message_album(
-      BusinessConnectionId(std::move(request.business_connection_id_)), DialogId(request.chat_id_),
-      std::move(request.reply_to_), request.disable_notification_, request.protect_content_,
-      MessageEffectId(request.effect_id_), std::move(request.input_message_contents_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editBusinessMessageText &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->edit_business_message_text(
-      BusinessConnectionId(std::move(request.business_connection_id_)), DialogId(request.chat_id_),
-      MessageId(request.message_id_), std::move(request.reply_markup_), std::move(request.input_message_content_),
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editBusinessMessageLiveLocation &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->edit_business_message_live_location(
-      BusinessConnectionId(std::move(request.business_connection_id_)), DialogId(request.chat_id_),
-      MessageId(request.message_id_), std::move(request.reply_markup_), std::move(request.location_),
-      request.live_period_, request.heading_, request.proximity_alert_radius_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editBusinessMessageMedia &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->edit_business_message_media(
-      BusinessConnectionId(std::move(request.business_connection_id_)), DialogId(request.chat_id_),
-      MessageId(request.message_id_), std::move(request.reply_markup_), std::move(request.input_message_content_),
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editBusinessMessageCaption &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->edit_business_message_caption(
-      BusinessConnectionId(std::move(request.business_connection_id_)), DialogId(request.chat_id_),
-      MessageId(request.message_id_), std::move(request.reply_markup_), std::move(request.caption_),
-      request.show_caption_above_media_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editBusinessMessageReplyMarkup &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->edit_business_message_reply_markup(
-      BusinessConnectionId(std::move(request.business_connection_id_)), DialogId(request.chat_id_),
-      MessageId(request.message_id_), std::move(request.reply_markup_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::stopBusinessPoll &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->stop_poll(BusinessConnectionId(std::move(request.business_connection_id_)),
-                                               DialogId(request.chat_id_), MessageId(request.message_id_),
-                                               std::move(request.reply_markup_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessMessageIsPinned &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->pin_dialog_message(BusinessConnectionId(std::move(request.business_connection_id_)),
-                                             DialogId(request.chat_id_), MessageId(request.message_id_), true, false,
-                                             !request.is_pinned_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::readBusinessMessage &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_connection_manager_->read_business_message(
-      BusinessConnectionId(std::move(request.business_connection_id_)), DialogId(request.chat_id_),
-      MessageId(request.message_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteBusinessMessages &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_connection_manager_->delete_business_messages(
-      BusinessConnectionId(std::move(request.business_connection_id_)),
-      MessageId::get_message_ids(request.message_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editBusinessStory &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->edit_business_story(
-      DialogId(request.story_sender_chat_id_), StoryId(request.story_id_), std::move(request.content_),
-      std::move(request.areas_), std::move(request.caption_), std::move(request.privacy_settings_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteBusinessStory &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_connection_manager_->delete_business_story(
-      BusinessConnectionId(std::move(request.business_connection_id_)), StoryId(request.story_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessAccountName &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.first_name_);
-  CLEAN_INPUT_STRING(request.last_name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_connection_manager_->set_business_name(BusinessConnectionId(std::move(request.business_connection_id_)),
-                                                       request.first_name_, request.last_name_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessAccountBio &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.bio_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_connection_manager_->set_business_about(
-      BusinessConnectionId(std::move(request.business_connection_id_)), request.bio_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessAccountProfilePhoto &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_business_profile_photo(BusinessConnectionId(std::move(request.business_connection_id_)),
-                                                 request.photo_, request.is_public_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessAccountUsername &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.username_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_connection_manager_->set_business_username(
-      BusinessConnectionId(std::move(request.business_connection_id_)), request.username_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessAccountGiftSettings &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_connection_manager_->set_business_gift_settings(
-      BusinessConnectionId(std::move(request.business_connection_id_)), StarGiftSettings(request.settings_),
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getBusinessAccountStarAmount &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->get_business_star_status(
-      BusinessConnectionId(std::move(request.business_connection_id_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::transferBusinessAccountStars &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_connection_manager_->transfer_business_stars(
-      BusinessConnectionId(std::move(request.business_connection_id_)), request.star_count_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::loadQuickReplyShortcuts &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->quick_reply_manager_->get_quick_reply_shortcuts(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setQuickReplyShortcutName &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->quick_reply_manager_->set_quick_reply_shortcut_name(QuickReplyShortcutId(request.shortcut_id_), request.name_,
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteQuickReplyShortcut &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->quick_reply_manager_->delete_quick_reply_shortcut(QuickReplyShortcutId(request.shortcut_id_),
-                                                         std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::reorderQuickReplyShortcuts &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->quick_reply_manager_->reorder_quick_reply_shortcuts(
-      QuickReplyShortcutId::get_quick_reply_shortcut_ids(request.shortcut_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::loadQuickReplyShortcutMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->quick_reply_manager_->get_quick_reply_shortcut_messages(QuickReplyShortcutId(request.shortcut_id_),
-                                                               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteQuickReplyShortcutMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->quick_reply_manager_->delete_quick_reply_shortcut_messages(
-      QuickReplyShortcutId(request.shortcut_id_), MessageId::get_message_ids(request.message_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::addQuickReplyShortcutMessage &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.shortcut_name_);
-  auto r_sent_message = td_->quick_reply_manager_->send_message(
-      request.shortcut_name_, MessageId(request.reply_to_message_id_), std::move(request.input_message_content_));
-  if (r_sent_message.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_sent_message.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_sent_message.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, td_api::addQuickReplyShortcutInlineQueryResultMessage &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.shortcut_name_);
-  CLEAN_INPUT_STRING(request.result_id_);
-  auto r_sent_message = td_->quick_reply_manager_->send_inline_query_result_message(
-      request.shortcut_name_, MessageId(request.reply_to_message_id_), request.query_id_, request.result_id_,
-      request.hide_via_bot_);
-  if (r_sent_message.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_sent_message.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_sent_message.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, td_api::addQuickReplyShortcutMessageAlbum &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.shortcut_name_);
-  auto r_messages = td_->quick_reply_manager_->send_message_group(
-      request.shortcut_name_, MessageId(request.reply_to_message_id_), std::move(request.input_message_contents_));
-  if (r_messages.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_messages.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_messages.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, td_api::readdQuickReplyShortcutMessages &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.shortcut_name_);
-  auto r_messages = td_->quick_reply_manager_->resend_messages(request.shortcut_name_,
-                                                               MessageId::get_message_ids(request.message_ids_));
-  if (r_messages.is_error()) {
-    return send_closure(td_actor_, &Td::send_error, id, r_messages.move_as_error());
-  }
-  send_closure(td_actor_, &Td::send_result, id, r_messages.move_as_ok());
-}
-
-void Requests::on_request(uint64 id, td_api::editQuickReplyMessage &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->quick_reply_manager_->edit_quick_reply_message(QuickReplyShortcutId(request.shortcut_id_),
-                                                      MessageId(request.message_id_),
-                                                      std::move(request.input_message_content_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getCurrentWeather &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->inline_queries_manager_->get_weather(Location(request.location_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStory &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->get_story(DialogId(request.story_sender_chat_id_), StoryId(request.story_id_),
-                                 request.only_local_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatsToSendStories &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->get_dialogs_to_send_stories(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::canSendStory &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->can_send_story(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendStory &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->send_story(DialogId(request.chat_id_), std::move(request.content_), std::move(request.areas_),
-                                  std::move(request.caption_), std::move(request.privacy_settings_),
-                                  request.active_period_, std::move(request.from_story_full_id_),
-                                  request.is_posted_to_chat_page_, request.protect_content_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editStory &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->edit_story(DialogId(request.story_sender_chat_id_), StoryId(request.story_id_),
-                                  std::move(request.content_), std::move(request.areas_), std::move(request.caption_),
-                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::editStoryCover &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->edit_story_cover(DialogId(request.story_sender_chat_id_), StoryId(request.story_id_),
-                                        request.cover_frame_timestamp_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setStoryPrivacySettings &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->set_story_privacy_settings(StoryId(request.story_id_), std::move(request.privacy_settings_),
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleStoryIsPostedToChatPage &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->toggle_story_is_pinned(DialogId(request.story_sender_chat_id_), StoryId(request.story_id_),
-                                              request.is_posted_to_chat_page_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteStory &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->delete_story(DialogId(request.story_sender_chat_id_), StoryId(request.story_id_),
-                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::loadActiveStories &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->load_active_stories(StoryListId(request.story_list_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatActiveStoriesList &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->toggle_dialog_stories_hidden(DialogId(request.chat_id_), StoryListId(request.story_list_),
-                                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getForumTopicDefaultIcons &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_default_topic_icons(false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createForumTopic &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
-  td_->forum_topic_manager_->create_forum_topic(DialogId(request.chat_id_), std::move(request.name_),
-                                                std::move(request.icon_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editForumTopic &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->forum_topic_manager_->edit_forum_topic(DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                                              std::move(request.name_), request.edit_icon_custom_emoji_,
-                                              CustomEmojiId(request.icon_custom_emoji_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getForumTopic &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->forum_topic_manager_->get_forum_topic(DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                                             std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getForumTopicLink &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->forum_topic_manager_->get_forum_topic_link(DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getForumTopics &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST_PROMISE();
-  td_->forum_topic_manager_->get_forum_topics(DialogId(request.chat_id_), std::move(request.query_),
-                                              request.offset_date_, MessageId(request.offset_message_id_),
-                                              MessageId(request.offset_message_thread_id_), request.limit_,
-                                              std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleForumTopicIsClosed &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->forum_topic_manager_->toggle_forum_topic_is_closed(
-      DialogId(request.chat_id_), MessageId(request.message_thread_id_), request.is_closed_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGeneralForumTopicIsHidden &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->forum_topic_manager_->toggle_forum_topic_is_hidden(DialogId(request.chat_id_), request.is_hidden_,
-                                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleForumTopicIsPinned &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->forum_topic_manager_->toggle_forum_topic_is_pinned(
-      DialogId(request.chat_id_), MessageId(request.message_thread_id_), request.is_pinned_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setPinnedForumTopics &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->forum_topic_manager_->set_pinned_forum_topics(
-      DialogId(request.chat_id_), MessageId::get_message_ids(request.message_thread_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteForumTopic &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->forum_topic_manager_->delete_forum_topic(DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                                                std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setGameScore &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->game_manager_->set_game_score({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                     request.edit_message_, UserId(request.user_id_), request.score_, request.force_,
-                                     std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setInlineGameScore &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.inline_message_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->inline_message_manager_->set_inline_game_score(request.inline_message_id_, request.edit_message_,
-                                                      UserId(request.user_id_), request.score_, request.force_,
-                                                      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getGameHighScores &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->game_manager_->get_game_high_scores({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                           UserId(request.user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getInlineGameHighScores &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.inline_message_id_);
-  CREATE_REQUEST_PROMISE();
-  td_->inline_message_manager_->get_inline_game_high_scores(request.inline_message_id_, UserId(request.user_id_),
-                                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteChatReplyMarkup &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->delete_dialog_reply_markup(DialogId(request.chat_id_),
-                                                                         MessageId(request.message_id_)));
-}
-
-void Requests::on_request(uint64 id, td_api::sendChatAction &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_action_manager_->send_dialog_action(DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                                                  BusinessConnectionId(std::move(request.business_connection_id_)),
-                                                  DialogAction(std::move(request.action_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::forwardMessages &request) {
-  auto input_message_ids = MessageId::get_message_ids(request.message_ids_);
-  auto message_copy_options =
-      transform(input_message_ids, [send_copy = request.send_copy_, remove_caption = request.remove_caption_](
-                                       MessageId) { return MessageCopyOptions(send_copy, remove_caption); });
-  auto r_messages = td_->messages_manager_->forward_messages(
-      DialogId(request.chat_id_), MessageId(request.message_thread_id_), DialogId(request.from_chat_id_),
-      std::move(input_message_ids), std::move(request.options_), false, -1, std::move(message_copy_options));
-  if (r_messages.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_messages.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_messages.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, const td_api::sendQuickReplyShortcutMessages &request) {
-  auto r_messages = td_->messages_manager_->send_quick_reply_shortcut_messages(
-      DialogId(request.chat_id_), QuickReplyShortcutId(request.shortcut_id_), request.sending_id_);
-  if (r_messages.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_messages.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, r_messages.move_as_ok());
-  }
-}
-
-void Requests::on_request(uint64 id, td_api::resendMessages &request) {
-  DialogId dialog_id(request.chat_id_);
-  auto r_message_ids =
-      td_->messages_manager_->resend_messages(dialog_id, MessageId::get_message_ids(request.message_ids_),
-                                              std::move(request.quote_), request.paid_message_star_count_);
-  if (r_message_ids.is_error()) {
-    return send_closure(td_actor_, &Td::send_error, id, r_message_ids.move_as_error());
-  }
-
-  send_closure(td_actor_, &Td::send_result, id,
-               td_->messages_manager_->get_messages_object(-1, dialog_id, r_message_ids.ok(), false, "resendMessages"));
-}
-
-void Requests::on_request(uint64 id, td_api::getLinkPreview &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->web_pages_manager_->get_web_page_preview(std::move(request.text_), std::move(request.link_preview_options_),
-                                                std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getWebPageInstantView &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.url_);
-  CREATE_REQUEST(GetWebPageInstantViewRequest, std::move(request.url_), request.only_local_);
-}
-
-void Requests::on_request(uint64 id, const td_api::createPrivateChat &request) {
-  CREATE_REQUEST(CreateChatRequest, DialogId(UserId(request.user_id_)), request.force_);
-}
-
-void Requests::on_request(uint64 id, const td_api::createBasicGroupChat &request) {
-  CREATE_REQUEST(CreateChatRequest, DialogId(ChatId(request.basic_group_id_)), request.force_);
-}
-
-void Requests::on_request(uint64 id, const td_api::createSupergroupChat &request) {
-  CREATE_REQUEST(CreateChatRequest, DialogId(ChannelId(request.supergroup_id_)), request.force_);
-}
-
-void Requests::on_request(uint64 id, const td_api::createSecretChat &request) {
-  CREATE_REQUEST(CreateChatRequest, DialogId(SecretChatId(request.secret_chat_id_)), true);
-}
-
-void Requests::on_request(uint64 id, td_api::createNewBasicGroupChat &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.title_);
-  CREATE_REQUEST_PROMISE();
-  td_->chat_manager_->create_new_chat(UserId::get_user_ids(request.user_ids_), std::move(request.title_),
-                                      MessageTtl(request.message_auto_delete_time_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createNewSupergroupChat &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.title_);
-  CLEAN_INPUT_STRING(request.description_);
-  CREATE_REQUEST_PROMISE();
-  td_->chat_manager_->create_new_channel(std::move(request.title_), request.is_forum_, !request.is_channel_,
-                                         std::move(request.description_), DialogLocation(std::move(request.location_)),
-                                         request.for_import_, MessageTtl(request.message_auto_delete_time_),
-                                         std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::createNewSecretChat &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->user_manager_->create_new_secret_chat(UserId(request.user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::createCall &request) {
-  CHECK_IS_USER();
-
-  if (request.protocol_ == nullptr) {
-    return send_error_raw(id, 400, "Call protocol must be non-empty");
-  }
-
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<CallId> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_call_id_object());
-    }
-  });
-  send_closure(G()->call_manager(), &CallManager::create_call, UserId(request.user_id_),
-               CallProtocol(*request.protocol_), request.is_video_, GroupCallId(request.group_call_id_),
-               std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::acceptCall &request) {
-  CHECK_IS_USER();
-  if (request.protocol_ == nullptr) {
-    return send_error_raw(id, 400, "Call protocol must be non-empty");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->call_manager(), &CallManager::accept_call, CallId(request.call_id_),
-               CallProtocol(*request.protocol_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendCallSignalingData &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->call_manager(), &CallManager::send_call_signaling_data, CallId(request.call_id_),
-               std::move(request.data_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::discardCall &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->call_manager(), &CallManager::discard_call, CallId(request.call_id_), request.is_disconnected_,
-               request.duration_, request.is_video_, request.connection_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendCallRating &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.comment_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->call_manager(), &CallManager::rate_call, CallId(request.call_id_), request.rating_,
-               std::move(request.comment_), std::move(request.problems_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendCallDebugInformation &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.debug_information_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->call_manager(), &CallManager::send_call_debug_information, CallId(request.call_id_),
-               std::move(request.debug_information_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendCallLog &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->call_manager(), &CallManager::send_call_log, CallId(request.call_id_), std::move(request.log_file_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getVideoChatAvailableParticipants &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->group_call_manager_->get_group_call_join_as(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setVideoChatDefaultParticipant &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, default_join_as_dialog_id,
-                     get_message_sender_dialog_id(td_, request.default_participant_id_, true, false));
-  td_->group_call_manager_->set_group_call_default_join_as(DialogId(request.chat_id_), default_join_as_dialog_id,
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createVideoChat &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.title_);
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<GroupCallId> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(td_api::make_object<td_api::groupCallId>(result.ok().get()));
-    }
-  });
-  td_->group_call_manager_->create_voice_chat(DialogId(request.chat_id_), std::move(request.title_),
-                                              request.start_date_, request.is_rtmp_stream_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::createGroupCall &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->call_manager(), &CallManager::create_conference_call, CallId(request.call_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getVideoChatRtmpUrl &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->group_call_manager_->get_voice_chat_rtmp_stream_url(DialogId(request.chat_id_), false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::replaceVideoChatRtmpUrl &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->group_call_manager_->get_voice_chat_rtmp_stream_url(DialogId(request.chat_id_), true, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getGroupCall &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->group_call_manager_->get_group_call(GroupCallId(request.group_call_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::startScheduledGroupCall &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->start_scheduled_group_call(GroupCallId(request.group_call_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGroupCallEnabledStartNotification &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->toggle_group_call_start_subscribed(GroupCallId(request.group_call_id_),
-                                                               request.enabled_start_notification_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::joinGroupCall &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_hash_);
-  CLEAN_INPUT_STRING(request.payload_);
-  CREATE_TEXT_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, join_as_dialog_id,
-                     get_message_sender_dialog_id(td_, request.participant_id_, true, true));
-  td_->group_call_manager_->join_group_call(GroupCallId(request.group_call_id_), join_as_dialog_id,
-                                            request.audio_source_id_, std::move(request.payload_), request.is_muted_,
-                                            request.is_my_video_enabled_, request.invite_hash_,
-                                            request.key_fingerprint_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::startGroupCallScreenSharing &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.payload_);
-  CREATE_TEXT_REQUEST_PROMISE();
-  td_->group_call_manager_->start_group_call_screen_sharing(
-      GroupCallId(request.group_call_id_), request.audio_source_id_, std::move(request.payload_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGroupCallScreenSharingIsPaused &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->toggle_group_call_is_my_presentation_paused(GroupCallId(request.group_call_id_),
-                                                                        request.is_paused_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::endGroupCallScreenSharing &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->end_group_call_screen_sharing(GroupCallId(request.group_call_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setGroupCallTitle &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.title_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->set_group_call_title(GroupCallId(request.group_call_id_), std::move(request.title_),
-                                                 std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGroupCallMuteNewParticipants &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->toggle_group_call_mute_new_participants(GroupCallId(request.group_call_id_),
-                                                                    request.mute_new_participants_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::revokeGroupCallInviteLink &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->revoke_group_call_invite_link(GroupCallId(request.group_call_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::inviteGroupCallParticipants &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->invite_group_call_participants(GroupCallId(request.group_call_id_),
-                                                           UserId::get_user_ids(request.user_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getGroupCallInviteLink &request) {
-  CHECK_IS_USER();
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  td_->group_call_manager_->get_group_call_invite_link(GroupCallId(request.group_call_id_), request.can_self_unmute_,
-                                                       std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::startGroupCallRecording &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.title_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->toggle_group_call_recording(GroupCallId(request.group_call_id_), true,
-                                                        std::move(request.title_), request.record_video_,
-                                                        request.use_portrait_orientation_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::endGroupCallRecording &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->toggle_group_call_recording(GroupCallId(request.group_call_id_), false, string(), false,
-                                                        false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGroupCallIsMyVideoPaused &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->toggle_group_call_is_my_video_paused(GroupCallId(request.group_call_id_),
-                                                                 request.is_my_video_paused_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGroupCallIsMyVideoEnabled &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->toggle_group_call_is_my_video_enabled(GroupCallId(request.group_call_id_),
-                                                                  request.is_my_video_enabled_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setGroupCallParticipantIsSpeaking &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->set_group_call_participant_is_speaking(
-      GroupCallId(request.group_call_id_), request.audio_source_, request.is_speaking_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGroupCallParticipantIsMuted &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, participant_dialog_id,
-                     get_message_sender_dialog_id(td_, request.participant_id_, true, false));
-  td_->group_call_manager_->toggle_group_call_participant_is_muted(
-      GroupCallId(request.group_call_id_), participant_dialog_id, request.is_muted_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setGroupCallParticipantVolumeLevel &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, participant_dialog_id,
-                     get_message_sender_dialog_id(td_, request.participant_id_, true, false));
-  td_->group_call_manager_->set_group_call_participant_volume_level(
-      GroupCallId(request.group_call_id_), participant_dialog_id, request.volume_level_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGroupCallParticipantIsHandRaised &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, participant_dialog_id,
-                     get_message_sender_dialog_id(td_, request.participant_id_, true, false));
-  td_->group_call_manager_->toggle_group_call_participant_is_hand_raised(
-      GroupCallId(request.group_call_id_), participant_dialog_id, request.is_hand_raised_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::loadGroupCallParticipants &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->load_group_call_participants(GroupCallId(request.group_call_id_), request.limit_,
-                                                         std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::leaveGroupCall &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->leave_group_call(GroupCallId(request.group_call_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::endGroupCall &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->group_call_manager_->discard_group_call(GroupCallId(request.group_call_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getGroupCallStreams &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->group_call_manager_->get_group_call_streams(GroupCallId(request.group_call_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getGroupCallStreamSegment &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<string> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      auto file_part = td_api::make_object<td_api::filePart>();
-      file_part->data_ = result.move_as_ok();
-      promise.set_value(std::move(file_part));
-    }
-  });
-  td_->group_call_manager_->get_group_call_stream_segment(GroupCallId(request.group_call_id_), request.time_offset_,
-                                                          request.scale_, request.channel_id_,
-                                                          std::move(request.video_quality_), std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::upgradeBasicGroupChatToSupergroupChat &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_manager_->migrate_dialog_to_megagroup(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatListsToAddChat &request) {
-  CHECK_IS_USER();
-  auto dialog_lists = td_->messages_manager_->get_dialog_lists_to_add_dialog(DialogId(request.chat_id_));
-  auto chat_lists =
-      transform(dialog_lists, [](DialogListId dialog_list_id) { return dialog_list_id.get_chat_list_object(); });
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::chatLists>(std::move(chat_lists)));
-}
-
-void Requests::on_request(uint64 id, const td_api::addChatToList &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->add_dialog_to_list(DialogId(request.chat_id_), DialogListId(request.chat_list_),
-                                             std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatFolder &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->get_dialog_filter(DialogFilterId(request.chat_folder_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getRecommendedChatFolders &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->get_recommended_dialog_filters(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createChatFolder &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->create_dialog_filter(std::move(request.folder_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editChatFolder &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->edit_dialog_filter(DialogFilterId(request.chat_folder_id_), std::move(request.folder_),
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteChatFolder &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->delete_dialog_filter(
-      DialogFilterId(request.chat_folder_id_), DialogId::get_dialog_ids(request.leave_chat_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatFolderChatsToLeave &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->get_leave_dialog_filter_suggestions(DialogFilterId(request.chat_folder_id_),
-                                                                   std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getChatFolderChatCount &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<int32> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(td_api::make_object<td_api::count>(result.move_as_ok()));
-    }
-  });
-  td_->messages_manager_->get_dialog_filter_dialog_count(std::move(request.folder_), std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::reorderChatFolders &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->reorder_dialog_filters(
-      transform(request.chat_folder_ids_, [](int32 id) { return DialogFilterId(id); }),
-      request.main_chat_list_position_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleChatFolderTags &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->toggle_dialog_filter_tags(request.are_tags_enabled_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatsForChatFolderInviteLink &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->get_dialogs_for_dialog_filter_invite_link(DialogFilterId(request.chat_folder_id_),
-                                                                         std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createChatFolderInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->create_dialog_filter_invite_link(
-      DialogFilterId(request.chat_folder_id_), std::move(request.name_), DialogId::get_dialog_ids(request.chat_ids_),
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatFolderInviteLinks &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->get_dialog_filter_invite_links(DialogFilterId(request.chat_folder_id_),
-                                                              std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editChatFolderInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->edit_dialog_filter_invite_link(
-      DialogFilterId(request.chat_folder_id_), std::move(request.invite_link_), std::move(request.name_),
-      DialogId::get_dialog_ids(request.chat_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteChatFolderInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->delete_dialog_filter_invite_link(DialogFilterId(request.chat_folder_id_),
-                                                                std::move(request.invite_link_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkChatFolderInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->check_dialog_filter_invite_link(std::move(request.invite_link_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::addChatFolderByInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->add_dialog_filter_by_invite_link(
-      std::move(request.invite_link_), DialogId::get_dialog_ids(request.chat_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatFolderNewChats &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->get_dialog_filter_new_chats(DialogFilterId(request.chat_folder_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::processChatFolderNewChats &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_filter_manager_->add_dialog_filter_new_chats(
-      DialogFilterId(request.chat_folder_id_), DialogId::get_dialog_ids(request.added_chat_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getArchiveChatListSettings &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise =
-      PromiseCreator::lambda([promise = std::move(promise)](Result<GlobalPrivacySettings> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(result.ok().get_archive_chat_list_settings_object());
-        }
-      });
-  GlobalPrivacySettings::get_global_privacy_settings(td_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setArchiveChatListSettings &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  GlobalPrivacySettings::set_global_privacy_settings(td_, GlobalPrivacySettings(std::move(request.settings_)),
-                                                     std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getReadDatePrivacySettings &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise =
-      PromiseCreator::lambda([promise = std::move(promise)](Result<GlobalPrivacySettings> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(result.ok().get_read_date_privacy_settings_object());
-        }
-      });
-  GlobalPrivacySettings::get_global_privacy_settings(td_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setReadDatePrivacySettings &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  GlobalPrivacySettings::set_global_privacy_settings(td_, GlobalPrivacySettings(std::move(request.settings_)),
-                                                     std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getNewChatPrivacySettings &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise =
-      PromiseCreator::lambda([promise = std::move(promise)](Result<GlobalPrivacySettings> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(result.ok().get_new_chat_privacy_settings_object());
-        }
-      });
-  GlobalPrivacySettings::get_global_privacy_settings(td_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setNewChatPrivacySettings &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  GlobalPrivacySettings::set_global_privacy_settings(td_, GlobalPrivacySettings(std::move(request.settings_)),
-                                                     std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPaidMessageRevenue &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->star_manager_->get_paid_message_revenue(UserId(request.user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::allowUnpaidMessagesFromUser &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->privacy_manager_->allow_unpaid_messages(UserId(request.user_id_), request.refund_payments_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatPaidMessageStarCount &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->set_channel_send_paid_messages_star_count(DialogId(request.chat_id_),
-                                                                request.paid_message_star_count_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::canSendMessageToUser &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->user_manager_->can_send_message_to_user(UserId(request.user_id_), request.only_local_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatTitle &request) {
-  CLEAN_INPUT_STRING(request.title_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->set_dialog_title(DialogId(request.chat_id_), request.title_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatPhoto &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->set_dialog_photo(DialogId(request.chat_id_), request.photo_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatAccentColor &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->set_dialog_accent_color(DialogId(request.chat_id_), AccentColorId(request.accent_color_id_),
-                                                CustomEmojiId(request.background_custom_emoji_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatProfileAccentColor &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->set_dialog_profile_accent_color(
-      DialogId(request.chat_id_), AccentColorId(request.profile_accent_color_id_),
-      CustomEmojiId(request.profile_background_custom_emoji_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatMessageAutoDeleteTime &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->set_dialog_message_ttl(DialogId(request.chat_id_), request.message_auto_delete_time_,
-                                                 std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatEmojiStatus &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->set_dialog_emoji_status(
-      DialogId(request.chat_id_), EmojiStatus::get_emoji_status(request.emoji_status_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatPermissions &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->set_dialog_permissions(DialogId(request.chat_id_), request.permissions_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatBackground &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->background_manager_->set_dialog_background(DialogId(request.chat_id_), request.background_.get(),
-                                                  request.type_.get(), request.dark_theme_dimming_,
-                                                  !request.only_for_self_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteChatBackground &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->background_manager_->delete_dialog_background(DialogId(request.chat_id_), request.restore_previous_,
-                                                     std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatTheme &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.theme_name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->set_dialog_theme(DialogId(request.chat_id_), request.theme_name_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatDraftMessage &request) {
-  CHECK_IS_USER();
-  answer_ok_query(
-      id, td_->messages_manager_->set_dialog_draft_message(
-              DialogId(request.chat_id_), MessageId(request.message_thread_id_), std::move(request.draft_message_)));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleChatHasProtectedContent &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->toggle_dialog_has_protected_content(DialogId(request.chat_id_), request.has_protected_content_,
-                                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleChatIsPinned &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->toggle_dialog_is_pinned(DialogListId(request.chat_list_),
-                                                                      DialogId(request.chat_id_), request.is_pinned_));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleChatViewAsTopics &request) {
-  CHECK_IS_USER();
-  answer_ok_query(
-      id, td_->messages_manager_->toggle_dialog_view_as_messages(DialogId(request.chat_id_), !request.view_as_topics_));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleChatIsTranslatable &request) {
-  CHECK_IS_USER();
-  answer_ok_query(
-      id, td_->messages_manager_->toggle_dialog_is_translatable(DialogId(request.chat_id_), request.is_translatable_));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleChatIsMarkedAsUnread &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->toggle_dialog_is_marked_as_unread(DialogId(request.chat_id_),
-                                                                                request.is_marked_as_unread_));
-}
-
-void Requests::on_request(uint64 id, const td_api::setMessageSenderBlockList &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->set_message_sender_block_list(request.sender_id_, request.block_list_));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleChatDefaultDisableNotification &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->toggle_dialog_silent_send_message(DialogId(request.chat_id_),
-                                                                                request.default_disable_notification_));
-}
-
-void Requests::on_request(uint64 id, const td_api::setPinnedChats &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->set_pinned_dialogs(DialogListId(request.chat_list_),
-                                                                 DialogId::get_dialog_ids(request.chat_ids_)));
-}
-
-void Requests::on_request(uint64 id, const td_api::readChatList &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->read_all_dialogs_from_list(DialogListId(request.chat_list_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStoryNotificationSettingsExceptions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->notification_settings_manager_->get_story_notification_settings_exceptions(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatActiveStories &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->get_dialog_expiring_stories(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatPostedToChatPageStories &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->get_dialog_pinned_stories(DialogId(request.chat_id_), StoryId(request.from_story_id_),
-                                                 request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatArchivedStories &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->get_story_archive(DialogId(request.chat_id_), StoryId(request.from_story_id_), request.limit_,
-                                         std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatPinnedStories &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->set_pinned_stories(DialogId(request.chat_id_), StoryId::get_story_ids(request.story_ids_),
-                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::openStory &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->open_story(DialogId(request.story_sender_chat_id_), StoryId(request.story_id_),
-                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::closeStory &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->close_story(DialogId(request.story_sender_chat_id_), StoryId(request.story_id_),
-                                   std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStoryAvailableReactions &request) {
-  CHECK_IS_USER();
-  send_closure(td_actor_, &Td::send_result, id, td_->reaction_manager_->get_available_reactions(request.row_size_));
-}
-
-void Requests::on_request(uint64 id, const td_api::setStoryReaction &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->set_story_reaction({DialogId(request.story_sender_chat_id_), StoryId(request.story_id_)},
-                                          ReactionType(request.reaction_type_), request.update_recent_reactions_,
-                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getStoryInteractions &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->get_story_interactions(StoryId(request.story_id_), request.query_, request.only_contacts_,
-                                              request.prefer_forwards_, request.prefer_with_reaction_, request.offset_,
-                                              request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getChatStoryInteractions &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->get_dialog_story_interactions(
-      {DialogId(request.story_sender_chat_id_), StoryId(request.story_id_)}, ReactionType(request.reaction_type_),
-      request.prefer_forwards_, request.offset_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::reportStory &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.text_);
-  CREATE_REQUEST_PROMISE();
-  td_->story_manager_->report_story({DialogId(request.story_sender_chat_id_), StoryId(request.story_id_)},
-                                    request.option_id_, request.text_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::activateStoryStealthMode &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->story_manager_->activate_stealth_mode(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatBoostLevelFeatures &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  promise.set_value(td_->boost_manager_->get_chat_boost_level_features_object(!request.is_channel_, request.level_));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatBoostFeatures &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  promise.set_value(td_->boost_manager_->get_chat_boost_features_object(!request.is_channel_));
-}
-
-void Requests::on_request(uint64 id, const td_api::getAvailableChatBoostSlots &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->boost_manager_->get_boost_slots(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatBoostStatus &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->boost_manager_->get_dialog_boost_status(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::boostChat &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->boost_manager_->boost_dialog(DialogId(request.chat_id_), std::move(request.slot_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatBoostLink &request) {
-  auto r_boost_link = td_->boost_manager_->get_dialog_boost_link(DialogId(request.chat_id_));
-  if (r_boost_link.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_boost_link.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id,
-                 td_api::make_object<td_api::chatBoostLink>(r_boost_link.ok().first, r_boost_link.ok().second));
-  }
-}
-
-void Requests::on_request(uint64 id, td_api::getChatBoostLinkInfo &request) {
-  CLEAN_INPUT_STRING(request.url_);
-  CREATE_REQUEST(GetDialogBoostLinkInfoRequest, std::move(request.url_));
-}
-
-void Requests::on_request(uint64 id, td_api::getChatBoosts &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->boost_manager_->get_dialog_boosts(DialogId(request.chat_id_), request.only_gift_codes_, request.offset_,
-                                         request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getUserChatBoosts &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->boost_manager_->get_user_dialog_boosts(DialogId(request.chat_id_), UserId(request.user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getAttachmentMenuBot &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->attach_menu_manager_->get_attach_menu_bot(UserId(request.bot_user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleBotIsAddedToAttachmentMenu &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->attach_menu_manager_->toggle_bot_is_added_to_attach_menu(UserId(request.bot_user_id_), request.is_added_,
-                                                                request.allow_write_access_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatAvailableReactions &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->set_dialog_available_reactions(DialogId(request.chat_id_),
-                                                         std::move(request.available_reactions_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatClientData &request) {
-  answer_ok_query(
-      id, td_->messages_manager_->set_dialog_client_data(DialogId(request.chat_id_), std::move(request.client_data_)));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatDescription &request) {
-  CLEAN_INPUT_STRING(request.description_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->set_dialog_description(DialogId(request.chat_id_), request.description_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatDiscussionGroup &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->set_channel_discussion_group(DialogId(request.chat_id_), DialogId(request.discussion_chat_id_),
-                                                   std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatLocation &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->set_dialog_location(DialogId(request.chat_id_), DialogLocation(std::move(request.location_)),
-                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatSlowModeDelay &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->set_channel_slow_mode_delay(DialogId(request.chat_id_), request.slow_mode_delay_,
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::pinChatMessage &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->pin_dialog_message(BusinessConnectionId(), DialogId(request.chat_id_),
-                                             MessageId(request.message_id_), request.disable_notification_,
-                                             request.only_for_self_, false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::unpinChatMessage &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->pin_dialog_message(BusinessConnectionId(), DialogId(request.chat_id_),
-                                             MessageId(request.message_id_), false, false, true, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::unpinAllChatMessages &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->unpin_all_dialog_messages(DialogId(request.chat_id_), MessageId(), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::unpinAllMessageThreadMessages &request) {
-  if (request.message_thread_id_ == 0) {
-    return send_error_raw(id, 400, "Invalid message thread identifier specified");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->unpin_all_dialog_messages(DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::joinChat &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_participant_manager_->add_dialog_participant(
-      DialogId(request.chat_id_), td_->user_manager_->get_my_id(), 0,
-      DialogParticipantManager::wrap_failed_to_add_members_promise(std::move(promise)));
-}
-
-void Requests::on_request(uint64 id, const td_api::leaveChat &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  DialogId dialog_id(request.chat_id_);
-  td_api::object_ptr<td_api::ChatMemberStatus> new_status = td_api::make_object<td_api::chatMemberStatusLeft>();
-  if (dialog_id.get_type() == DialogType::Channel && td_->dialog_manager_->have_dialog_force(dialog_id, "leaveChat")) {
-    auto status = td_->chat_manager_->get_channel_status(dialog_id.get_channel_id());
-    if (status.is_creator()) {
-      if (!status.is_member()) {
-        return promise.set_value(Unit());
-      }
-
-      new_status =
-          td_api::make_object<td_api::chatMemberStatusCreator>(status.get_rank(), status.is_anonymous(), false);
-    }
-  }
-  td_->dialog_participant_manager_->set_dialog_participant_status(dialog_id, td_->dialog_manager_->get_my_dialog_id(),
-                                                                  std::move(new_status), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::addChatMember &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_participant_manager_->add_dialog_participant(DialogId(request.chat_id_), UserId(request.user_id_),
-                                                           request.forward_limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::addChatMembers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_participant_manager_->add_dialog_participants(
-      DialogId(request.chat_id_), UserId::get_user_ids(request.user_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatMemberStatus &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, participant_dialog_id,
-                     get_message_sender_dialog_id(td_, request.member_id_, false, false));
-  td_->dialog_participant_manager_->set_dialog_participant_status(DialogId(request.chat_id_), participant_dialog_id,
-                                                                  std::move(request.status_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::banChatMember &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, participant_dialog_id,
-                     get_message_sender_dialog_id(td_, request.member_id_, false, false));
-  td_->dialog_participant_manager_->ban_dialog_participant(DialogId(request.chat_id_), participant_dialog_id,
-                                                           request.banned_until_date_, request.revoke_messages_,
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::canTransferOwnership &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda(
-      [promise = std::move(promise)](Result<DialogParticipantManager::CanTransferOwnershipResult> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(DialogParticipantManager::get_can_transfer_ownership_result_object(result.ok()));
-        }
-      });
-  td_->dialog_participant_manager_->can_transfer_ownership(std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::transferChatOwnership &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.password_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_participant_manager_->transfer_dialog_ownership(DialogId(request.chat_id_), UserId(request.user_id_),
-                                                              request.password_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatMember &request) {
-  CREATE_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, participant_dialog_id,
-                     get_message_sender_dialog_id(td_, request.member_id_, false, false));
-  td_->dialog_participant_manager_->get_dialog_participant(DialogId(request.chat_id_), participant_dialog_id,
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchChatMembers &request) {
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST_PROMISE();
-  auto query_promise =
-      PromiseCreator::lambda([promise = std::move(promise), td = td_](Result<DialogParticipants> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(result.ok().get_chat_members_object(td, "searchChatMembers"));
-        }
-      });
-  td_->dialog_participant_manager_->search_dialog_participants(DialogId(request.chat_id_), request.query_,
-                                                               request.limit_, DialogParticipantFilter(request.filter_),
-                                                               std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatAdministrators &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_participant_manager_->get_dialog_administrators(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::replacePrimaryChatInviteLink &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->export_dialog_invite_link(
-      DialogId(request.chat_id_), string(), 0, 0, false, StarSubscriptionPricing(), false, true, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createChatInviteLink &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->export_dialog_invite_link(
-      DialogId(request.chat_id_), std::move(request.name_), request.expiration_date_, request.member_limit_,
-      request.creates_join_request_, StarSubscriptionPricing(), false, false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createChatSubscriptionInviteLink &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->export_dialog_invite_link(
-      DialogId(request.chat_id_), std::move(request.name_), 0, 0, false,
-      StarSubscriptionPricing(std::move(request.subscription_pricing_)), true, false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editChatInviteLink &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->edit_dialog_invite_link(
-      DialogId(request.chat_id_), request.invite_link_, std::move(request.name_), request.expiration_date_,
-      request.member_limit_, request.creates_join_request_, false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editChatSubscriptionInviteLink &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->edit_dialog_invite_link(DialogId(request.chat_id_), request.invite_link_,
-                                                            std::move(request.name_), 0, 0, false, true,
-                                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getChatInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->get_dialog_invite_link(DialogId(request.chat_id_), request.invite_link_,
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatInviteLinkCounts &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->get_dialog_invite_link_counts(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getChatInviteLinks &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_invite_link_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->get_dialog_invite_links(
-      DialogId(request.chat_id_), UserId(request.creator_user_id_), request.is_revoked_, request.offset_date_,
-      request.offset_invite_link_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getChatInviteLinkMembers &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->get_dialog_invite_link_users(
-      DialogId(request.chat_id_), request.invite_link_, request.only_with_expired_subscription_,
-      std::move(request.offset_member_), request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getChatJoinRequests &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_participant_manager_->get_dialog_join_requests(DialogId(request.chat_id_), request.invite_link_,
-                                                             request.query_, std::move(request.offset_request_),
-                                                             request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::processChatJoinRequest &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_participant_manager_->process_dialog_join_request(DialogId(request.chat_id_), UserId(request.user_id_),
-                                                                request.approve_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::processChatJoinRequests &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_participant_manager_->process_dialog_join_requests(DialogId(request.chat_id_), request.invite_link_,
-                                                                 request.approve_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::revokeChatInviteLink &request) {
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->revoke_dialog_invite_link(DialogId(request.chat_id_), request.invite_link_,
-                                                              std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteRevokedChatInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->delete_revoked_dialog_invite_link(DialogId(request.chat_id_), request.invite_link_,
-                                                                      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteAllRevokedChatInviteLinks &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_invite_link_manager_->delete_all_revoked_dialog_invite_links(
-      DialogId(request.chat_id_), UserId(request.creator_user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkChatInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_REQUEST(CheckChatInviteLinkRequest, request.invite_link_);
-}
-
-void Requests::on_request(uint64 id, td_api::joinChatByInviteLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.invite_link_);
-  CREATE_REQUEST(JoinChatByInviteLinkRequest, request.invite_link_);
-}
-
-void Requests::on_request(uint64 id, td_api::getChatEventLog &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST_PROMISE();
-  get_dialog_event_log(td_, DialogId(request.chat_id_), std::move(request.query_), request.from_event_id_,
-                       request.limit_, std::move(request.filters_), UserId::get_user_ids(request.user_ids_),
-                       std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getTimeZones &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->time_zone_manager_->get_time_zones(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::clearAllDraftMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->clear_all_draft_messages(request.exclude_secret_chats_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::downloadFile &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->file_manager_->download_file(FileId(request.file_id_, 0), request.priority_, request.offset_, request.limit_,
-                                    request.synchronous_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getFileDownloadedPrefixSize &request) {
-  if (request.offset_ < 0) {
-    return send_error_raw(id, 400, "Parameter offset must be non-negative");
-  }
-  auto file_view = td_->file_manager_->get_file_view(FileId(request.file_id_, 0));
-  if (file_view.empty()) {
-    return send_closure(td_actor_, &Td::send_error, id, Status::Error(400, "Unknown file ID"));
-  }
-  send_closure(td_actor_, &Td::send_result, id,
-               td_api::make_object<td_api::fileDownloadedPrefixSize>(file_view.downloaded_prefix(request.offset_)));
-}
-
-void Requests::on_request(uint64 id, const td_api::cancelDownloadFile &request) {
-  td_->file_manager_->cancel_download(FileId(request.file_id_, 0), 0, request.only_if_pending_);
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-}
-
-void Requests::on_request(uint64 id, const td_api::getSuggestedFileName &request) {
-  Result<string> r_file_name =
-      td_->file_manager_->get_suggested_file_name(FileId(request.file_id_, 0), request.directory_);
-  if (r_file_name.is_error()) {
-    return send_closure(td_actor_, &Td::send_error, id, r_file_name.move_as_error());
-  }
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::text>(r_file_name.ok()));
-}
-
-void Requests::on_request(uint64 id, const td_api::preliminaryUploadFile &request) {
-  CREATE_REQUEST_PROMISE();
-  auto file_type = request.file_type_ == nullptr ? FileType::Temp : get_file_type(*request.file_type_);
-  td_->file_manager_->preliminary_upload_file(request.file_, file_type, request.priority_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::cancelPreliminaryUploadFile &request) {
-  td_->file_manager_->cancel_upload({FileId(request.file_id_, 0), 0});
-
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-}
-
-void Requests::on_request(uint64 id, td_api::writeGeneratedFilePart &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->file_manager_actor_, &FileManager::external_file_generate_write_part, request.generation_id_,
-               request.offset_, std::move(request.data_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setFileGenerationProgress &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->file_manager_actor_, &FileManager::external_file_generate_progress, request.generation_id_,
-               request.expected_size_, request.local_prefix_size_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::finishFileGeneration &request) {
-  Status status;
-  if (request.error_ != nullptr) {
-    CLEAN_INPUT_STRING(request.error_->message_);
-    status = Status::Error(request.error_->code_, request.error_->message_);
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->file_manager_actor_, &FileManager::external_file_generate_finish, request.generation_id_,
-               std::move(status), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::readFilePart &request) {
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->file_manager_actor_, &FileManager::read_file_part, FileId(request.file_id_, 0), request.offset_,
-               request.count_, 2, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteFile &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->file_manager_actor_, &FileManager::delete_file, FileId(request.file_id_, 0), std::move(promise),
-               "td_api::deleteFile");
-}
-
-void Requests::on_request(uint64 id, const td_api::addFileToDownloads &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->add_message_file_to_downloads(
-      MessageFullId(DialogId(request.chat_id_), MessageId(request.message_id_)), FileId(request.file_id_, 0),
-      request.priority_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleDownloadIsPaused &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->download_manager_actor_, &DownloadManager::toggle_is_paused, FileId(request.file_id_, 0),
-               request.is_paused_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleAllDownloadsArePaused &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->download_manager_actor_, &DownloadManager::toggle_all_is_paused, request.are_paused_,
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeFileFromDownloads &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->download_manager_actor_, &DownloadManager::remove_file, FileId(request.file_id_, 0), FileSourceId(),
-               request.delete_from_cache_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeAllFilesFromDownloads &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->download_manager_actor_, &DownloadManager::remove_all_files, request.only_active_,
-               request.only_completed_, request.delete_from_cache_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchFileDownloads &request) {
-  CLEAN_INPUT_STRING(request.query_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->download_manager_actor_, &DownloadManager::search, std::move(request.query_), request.only_active_,
-               request.only_completed_, std::move(request.offset_), request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setApplicationVerificationToken &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.token_);
-  CREATE_OK_REQUEST_PROMISE();
-  G()->net_query_dispatcher().set_verification_token(request.verification_id_, std::move(request.token_),
-                                                     std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getMessageFileType &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.message_file_head_);
-  CREATE_REQUEST_PROMISE();
-  td_->message_import_manager_->get_message_file_type(request.message_file_head_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageImportConfirmationText &request) {
-  CHECK_IS_USER();
-  CREATE_TEXT_REQUEST_PROMISE();
-  td_->message_import_manager_->get_message_import_confirmation_text(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::importMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->message_import_manager_->import_messages(DialogId(request.chat_id_), request.message_file_,
-                                                request.attached_files_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::blockMessageSenderFromReplies &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->block_message_sender_from_replies(MessageId(request.message_id_), request.delete_message_,
-                                                            request.delete_all_messages_, request.report_spam_,
-                                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBlockedMessageSenders &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_manager_->get_blocked_dialogs(request.block_list_, request.offset_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::addContact &request) {
-  CHECK_IS_USER();
-  auto r_contact = get_contact(td_, std::move(request.contact_));
-  if (r_contact.is_error()) {
-    return send_closure(td_actor_, &Td::send_error, id, r_contact.move_as_error());
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->add_contact(r_contact.move_as_ok(), request.share_phone_number_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::importContacts &request) {
-  CHECK_IS_USER();
-  vector<Contact> contacts;
-  contacts.reserve(request.contacts_.size());
-  for (auto &contact : request.contacts_) {
-    auto r_contact = get_contact(td_, std::move(contact));
-    if (r_contact.is_error()) {
-      return send_closure(td_actor_, &Td::send_error, id, r_contact.move_as_error());
-    }
-    contacts.push_back(r_contact.move_as_ok());
-  }
-  CREATE_REQUEST(ImportContactsRequest, std::move(contacts));
-}
-
-void Requests::on_request(uint64 id, const td_api::getContacts &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(SearchContactsRequest, string(), 1000000);
-}
-
-void Requests::on_request(uint64 id, td_api::searchContacts &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchContactsRequest, request.query_, request.limit_);
-}
-
-void Requests::on_request(uint64 id, const td_api::removeContacts &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(RemoveContactsRequest, UserId::get_user_ids(request.user_ids_));
-}
-
-void Requests::on_request(uint64 id, const td_api::getImportedContactCount &request) {
-  CHECK_IS_USER();
-  CREATE_NO_ARGS_REQUEST(GetImportedContactCountRequest);
-}
-
-void Requests::on_request(uint64 id, td_api::changeImportedContacts &request) {
-  CHECK_IS_USER();
-  vector<Contact> contacts;
-  contacts.reserve(request.contacts_.size());
-  for (auto &contact : request.contacts_) {
-    auto r_contact = get_contact(td_, std::move(contact));
-    if (r_contact.is_error()) {
-      return send_closure(td_actor_, &Td::send_error, id, r_contact.move_as_error());
-    }
-    contacts.push_back(r_contact.move_as_ok());
-  }
-  CREATE_REQUEST(ChangeImportedContactsRequest, std::move(contacts));
-}
-
-void Requests::on_request(uint64 id, const td_api::clearImportedContacts &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->clear_imported_contacts(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getCloseFriends &request) {
-  CHECK_IS_USER();
-  CREATE_NO_ARGS_REQUEST(GetCloseFriendsRequest);
-}
-
-void Requests::on_request(uint64 id, const td_api::setCloseFriends &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_close_friends(UserId::get_user_ids(request.user_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setUserPersonalProfilePhoto &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_user_profile_photo(UserId(request.user_id_), request.photo_, false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::suggestUserProfilePhoto &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_user_profile_photo(UserId(request.user_id_), request.photo_, true, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleBotCanManageEmojiStatus &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->toggle_user_can_manage_emoji_status(UserId(request.bot_user_id_),
-                                                          request.can_manage_emoji_status_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setUserEmojiStatus &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_user_emoji_status(UserId(request.user_id_),
-                                            EmojiStatus::get_emoji_status(request.emoji_status_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchUserByPhoneNumber &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.phone_number_);
-  CREATE_REQUEST(SearchUserByPhoneNumberRequest, std::move(request.phone_number_), request.only_local_);
-}
-
-void Requests::on_request(uint64 id, const td_api::sharePhoneNumber &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->share_phone_number(UserId(request.user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getRecentInlineBots &request) {
-  CHECK_IS_USER();
-  CREATE_NO_ARGS_REQUEST(GetRecentInlineBotsRequest);
-}
-
-void Requests::on_request(uint64 id, const td_api::getOwnedBots &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->bot_info_manager_->get_owned_bots(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setName &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.first_name_);
-  CLEAN_INPUT_STRING(request.last_name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_name(request.first_name_, request.last_name_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBio &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.bio_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_bio(request.bio_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setUsername &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.username_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_username(request.username_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::toggleUsernameIsActive &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.username_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->toggle_username_is_active(std::move(request.username_), request.is_active_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::reorderActiveUsernames &request) {
-  CHECK_IS_USER();
-  for (auto &username : request.usernames_) {
-    CLEAN_INPUT_STRING(username);
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->reorder_usernames(std::move(request.usernames_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBirthdate &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_birthdate(Birthdate(std::move(request.birthdate_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setPersonalChat &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_personal_channel(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setEmojiStatus &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_emoji_status(EmojiStatus::get_emoji_status(request.emoji_status_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleHasSponsoredMessagesEnabled &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->toggle_sponsored_messages(request.has_sponsored_messages_enabled_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getThemedEmojiStatuses &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_default_emoji_statuses(false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getThemedChatEmojiStatuses &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_default_channel_emoji_statuses(false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getDefaultEmojiStatuses &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_default_emoji_statuses(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getDefaultChatEmojiStatuses &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_default_channel_emoji_statuses(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getRecentEmojiStatuses &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_recent_emoji_statuses(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getUpgradedGiftEmojiStatuses &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_upgraded_gift_emoji_statuses(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::clearRecentEmojiStatuses &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  clear_recent_emoji_statuses(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setCommands &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  set_commands(td_, std::move(request.scope_), std::move(request.language_code_), std::move(request.commands_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteCommands &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  delete_commands(td_, std::move(request.scope_), std::move(request.language_code_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getCommands &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  get_commands(td_, std::move(request.scope_), std::move(request.language_code_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setMenuButton &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  set_menu_button(td_, UserId(request.user_id_), std::move(request.menu_button_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMenuButton &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  get_menu_button(td_, UserId(request.user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setDefaultGroupAdministratorRights &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->set_default_group_administrator_rights(
-      AdministratorRights(request.default_group_administrator_rights_, ChannelType::Megagroup), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setDefaultChannelAdministratorRights &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->set_default_channel_administrator_rights(
-      AdministratorRights(request.default_channel_administrator_rights_, ChannelType::Broadcast), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::canBotSendMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->can_bot_send_messages(UserId(request.bot_user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::allowBotToSendMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->allow_bot_to_send_messages(UserId(request.bot_user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendWebAppCustomRequest &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.method_);
-  CLEAN_INPUT_STRING(request.parameters_);
-  CREATE_REQUEST_PROMISE();
-  td_->web_app_manager_->invoke_web_view_custom_method(UserId(request.bot_user_id_), request.method_,
-                                                       request.parameters_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBotMediaPreviews &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->bot_info_manager_->get_bot_media_previews(UserId(request.bot_user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBotMediaPreviewInfo &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->bot_info_manager_->get_bot_media_preview_info(UserId(request.bot_user_id_), request.language_code_,
-                                                     std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::addBotMediaPreview &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->bot_info_manager_->add_bot_media_preview(UserId(request.bot_user_id_), request.language_code_,
-                                                std::move(request.content_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editBotMediaPreview &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->bot_info_manager_->edit_bot_media_preview(UserId(request.bot_user_id_), request.language_code_,
-                                                 FileId(request.file_id_, 0), std::move(request.content_),
-                                                 std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::reorderBotMediaPreviews &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->reorder_bot_media_previews(UserId(request.bot_user_id_), request.language_code_,
-                                                     request.file_ids_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteBotMediaPreviews &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->delete_bot_media_previews(UserId(request.bot_user_id_), request.language_code_,
-                                                    request.file_ids_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBotName &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->set_bot_name(UserId(request.bot_user_id_), request.language_code_, request.name_,
-                                       std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBotName &request) {
-  CREATE_TEXT_REQUEST_PROMISE();
-  td_->bot_info_manager_->get_bot_name(UserId(request.bot_user_id_), request.language_code_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setBotProfilePhoto &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_bot_profile_photo(UserId(request.bot_user_id_), request.photo_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::toggleBotUsernameIsActive &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.username_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->toggle_bot_username_is_active(UserId(request.bot_user_id_), std::move(request.username_),
-                                                    request.is_active_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::reorderBotActiveUsernames &request) {
-  CHECK_IS_USER();
-  for (auto &username : request.usernames_) {
-    CLEAN_INPUT_STRING(username);
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->reorder_bot_usernames(UserId(request.bot_user_id_), std::move(request.usernames_),
-                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBotInfoDescription &request) {
-  CLEAN_INPUT_STRING(request.description_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->set_bot_info_description(UserId(request.bot_user_id_), request.language_code_,
-                                                   request.description_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBotInfoDescription &request) {
-  CREATE_TEXT_REQUEST_PROMISE();
-  td_->bot_info_manager_->get_bot_info_description(UserId(request.bot_user_id_), request.language_code_,
-                                                   std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBotInfoShortDescription &request) {
-  CLEAN_INPUT_STRING(request.short_description_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->bot_info_manager_->set_bot_info_about(UserId(request.bot_user_id_), request.language_code_,
-                                             request.short_description_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBotInfoShortDescription &request) {
-  CREATE_TEXT_REQUEST_PROMISE();
-  td_->bot_info_manager_->get_bot_info_about(UserId(request.bot_user_id_), request.language_code_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setMessageSenderBotVerification &request) {
-  CLEAN_INPUT_STRING(request.custom_description_);
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, dialog_id, get_message_sender_dialog_id(td_, request.verified_id_, true, false));
-  td_->bot_info_manager_->set_custom_bot_verification(UserId(request.bot_user_id_), dialog_id, true,
-                                                      request.custom_description_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeMessageSenderBotVerification &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, dialog_id, get_message_sender_dialog_id(td_, request.verified_id_, true, false));
-  td_->bot_info_manager_->set_custom_bot_verification(UserId(request.bot_user_id_), dialog_id, false, string(),
-                                                      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessLocation &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->set_business_location(DialogLocation(std::move(request.location_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessOpeningHours &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->set_business_work_hours(BusinessWorkHours(std::move(request.opening_hours_)),
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessGreetingMessageSettings &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->set_business_greeting_message(
-      BusinessGreetingMessage(std::move(request.greeting_message_settings_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessAwayMessageSettings &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->set_business_away_message(BusinessAwayMessage(std::move(request.away_message_settings_)),
-                                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessStartPage &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->set_business_intro(BusinessIntro(td_, std::move(request.start_page_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setProfilePhoto &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_profile_photo(request.photo_, request.is_public_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteProfilePhoto &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->delete_profile_photo(request.profile_photo_id_, false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getUserProfilePhotos &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->user_manager_->get_user_profile_photos(UserId(request.user_id_), request.offset_, request.limit_,
-                                              std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setAccentColor &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_accent_color(AccentColorId(request.accent_color_id_),
-                                       CustomEmojiId(request.background_custom_emoji_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setProfileAccentColor &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->user_manager_->set_profile_accent_color(AccentColorId(request.profile_accent_color_id_),
-                                               CustomEmojiId(request.profile_background_custom_emoji_id_),
-                                               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBusinessConnectedBot &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->business_manager_->get_business_connected_bot(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBusinessConnectedBot &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->set_business_connected_bot(std::move(request.bot_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteBusinessConnectedBot &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->delete_business_connected_bot(UserId(request.bot_user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleBusinessConnectedBotChatIsPaused &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->toggle_business_connected_bot_dialog_is_paused(DialogId(request.chat_id_), request.is_paused_,
-                                                                         std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeBusinessConnectedBotFromChat &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->remove_business_connected_bot_from_dialog(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBusinessChatLinks &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->business_manager_->get_business_chat_links(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createBusinessChatLink &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->business_manager_->create_business_chat_link(std::move(request.link_info_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editBusinessChatLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.link_);
-  CREATE_REQUEST_PROMISE();
-  td_->business_manager_->edit_business_chat_link(request.link_, std::move(request.link_info_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteBusinessChatLink &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.link_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->business_manager_->delete_business_chat_link(request.link_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getBusinessChatLinkInfo &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.link_name_);
-  CREATE_REQUEST_PROMISE();
-  td_->business_manager_->get_business_chat_link_info(request.link_name_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setSupergroupUsername &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.username_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->set_channel_username(ChannelId(request.supergroup_id_), request.username_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::toggleSupergroupUsernameIsActive &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.username_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_username_is_active(ChannelId(request.supergroup_id_), std::move(request.username_),
-                                                        request.is_active_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::disableAllSupergroupUsernames &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->disable_all_channel_usernames(ChannelId(request.supergroup_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::reorderSupergroupActiveUsernames &request) {
-  CHECK_IS_USER();
-  for (auto &username : request.usernames_) {
-    CLEAN_INPUT_STRING(username);
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->reorder_channel_usernames(ChannelId(request.supergroup_id_), std::move(request.usernames_),
-                                                std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setSupergroupStickerSet &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->set_channel_sticker_set(ChannelId(request.supergroup_id_), StickerSetId(request.sticker_set_id_),
-                                              std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setSupergroupCustomEmojiStickerSet &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->set_channel_emoji_sticker_set(
-      ChannelId(request.supergroup_id_), StickerSetId(request.custom_emoji_sticker_set_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setSupergroupUnrestrictBoostCount &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->set_channel_unrestrict_boost_count(ChannelId(request.supergroup_id_),
-                                                         request.unrestrict_boost_count_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupSignMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_sign_messages(ChannelId(request.supergroup_id_), request.sign_messages_,
-                                                   request.show_message_sender_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupJoinToSendMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_join_to_send(ChannelId(request.supergroup_id_), request.join_to_send_messages_,
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupJoinByRequest &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_join_request(ChannelId(request.supergroup_id_), request.join_by_request_,
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupIsAllHistoryAvailable &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_is_all_history_available(ChannelId(request.supergroup_id_),
-                                                              request.is_all_history_available_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupCanHaveSponsoredMessages &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_can_have_sponsored_messages(
-      ChannelId(request.supergroup_id_), request.can_have_sponsored_messages_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupHasHiddenMembers &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_has_hidden_participants(ChannelId(request.supergroup_id_),
-                                                             request.has_hidden_members_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupHasAggressiveAntiSpamEnabled &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_has_aggressive_anti_spam_enabled(
-      ChannelId(request.supergroup_id_), request.has_aggressive_anti_spam_enabled_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupIsForum &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->toggle_channel_is_forum(ChannelId(request.supergroup_id_), request.is_forum_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleSupergroupIsBroadcastGroup &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->convert_channel_to_gigagroup(ChannelId(request.supergroup_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::reportSupergroupSpam &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->report_channel_spam(ChannelId(request.supergroup_id_),
-                                          MessageId::get_message_ids(request.message_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::reportSupergroupAntiSpamFalsePositive &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->chat_manager_->report_channel_anti_spam_false_positive(ChannelId(request.supergroup_id_),
-                                                              MessageId(request.message_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getSupergroupMembers &request) {
-  CREATE_REQUEST_PROMISE();
-  auto query_promise =
-      PromiseCreator::lambda([promise = std::move(promise), td = td_](Result<DialogParticipants> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(result.ok().get_chat_members_object(td, "getSupergroupMembers"));
-        }
-      });
-  td_->dialog_participant_manager_->get_channel_participants(ChannelId(request.supergroup_id_),
-                                                             std::move(request.filter_), string(), request.offset_,
-                                                             request.limit_, -1, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::closeSecretChat &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->secret_chats_manager_, &SecretChatsManager::cancel_chat, SecretChatId(request.secret_chat_id_),
-               false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStickerOutline &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  promise.set_value(td_->stickers_manager_->get_sticker_outline_object(
-      FileId(request.sticker_file_id_, 0), request.for_animated_emoji_, request.for_clicked_animated_emoji_message_));
-}
-
-void Requests::on_request(uint64 id, td_api::getStickers &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(GetStickersRequest, get_sticker_type(request.sticker_type_), std::move(request.query_), request.limit_,
-                 request.chat_id_);
-}
-
-void Requests::on_request(uint64 id, td_api::getAllStickerEmojis &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(GetAllStickerEmojisRequest, get_sticker_type(request.sticker_type_), std::move(request.query_),
-                 request.chat_id_, request.return_only_main_emoji_);
-}
-
-void Requests::on_request(uint64 id, td_api::searchStickers &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.emojis_);
-  CLEAN_INPUT_STRING(request.query_);
-  for (auto &input_language_code : request.input_language_codes_) {
-    CLEAN_INPUT_STRING(input_language_code);
-  }
-  CREATE_REQUEST_PROMISE();
-  auto sticker_type = get_sticker_type(request.sticker_type_);
-  if (sticker_type == StickerType::Regular && request.query_.empty()) {
-    // legacy
-    if (request.emojis_ == "⭐️⭐️") {
-      request.emojis_ = "⭐️";
-    } else if (request.emojis_ == "📂⭐️") {
-      request.emojis_ = "📂";
-    } else if (request.emojis_ == "👋⭐️") {
-      request.emojis_ = "👋";
-    }
-  }
-  td_->stickers_manager_->search_stickers(sticker_type, std::move(request.emojis_), request.query_,
-                                          request.input_language_codes_, request.offset_, request.limit_,
-                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getGreetingStickers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->search_stickers(StickerType::Regular, "👋⭐️", string(), vector<string>(), 0, 100,
-                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPremiumStickers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_premium_stickers(request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getInstalledStickerSets &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetInstalledStickerSetsRequest, get_sticker_type(request.sticker_type_));
-}
-
-void Requests::on_request(uint64 id, const td_api::getArchivedStickerSets &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetArchivedStickerSetsRequest, get_sticker_type(request.sticker_type_), request.offset_sticker_set_id_,
-                 request.limit_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getTrendingStickerSets &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetTrendingStickerSetsRequest, get_sticker_type(request.sticker_type_), request.offset_,
-                 request.limit_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getAttachedStickerSets &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetAttachedStickerSetsRequest, request.file_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getStickerSet &request) {
-  CREATE_REQUEST(GetStickerSetRequest, request.set_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getStickerSetName &request) {
-  CREATE_TEXT_REQUEST_PROMISE();
-  td_->stickers_manager_->get_sticker_set_name(StickerSetId(request.set_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchStickerSet &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST(SearchStickerSetRequest, std::move(request.name_), request.ignore_cache_);
-}
-
-void Requests::on_request(uint64 id, td_api::searchInstalledStickerSets &request) {
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchInstalledStickerSetsRequest, get_sticker_type(request.sticker_type_), std::move(request.query_),
-                 request.limit_);
-}
-
-void Requests::on_request(uint64 id, td_api::searchStickerSets &request) {
-  CLEAN_INPUT_STRING(request.query_);
-  CREATE_REQUEST(SearchStickerSetsRequest, get_sticker_type(request.sticker_type_), std::move(request.query_));
-}
-
-void Requests::on_request(uint64 id, const td_api::changeStickerSet &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(ChangeStickerSetRequest, request.set_id_, request.is_installed_, request.is_archived_);
-}
-
-void Requests::on_request(uint64 id, const td_api::viewTrendingStickerSets &request) {
-  CHECK_IS_USER();
-  td_->stickers_manager_->view_featured_sticker_sets(
-      StickersManager::convert_sticker_set_ids(request.sticker_set_ids_));
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-}
-
-void Requests::on_request(uint64 id, const td_api::reorderInstalledStickerSets &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->reorder_installed_sticker_sets(
-      get_sticker_type(request.sticker_type_), StickersManager::convert_sticker_set_ids(request.sticker_set_ids_),
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::uploadStickerFile &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->upload_sticker_file(UserId(request.user_id_), get_sticker_format(request.sticker_format_),
-                                              std::move(request.sticker_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getSuggestedStickerSetName &request) {
-  CLEAN_INPUT_STRING(request.title_);
-  CREATE_TEXT_REQUEST_PROMISE();
-  td_->stickers_manager_->get_suggested_sticker_set_name(std::move(request.title_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkStickerSetName &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda(
-      [promise = std::move(promise)](Result<StickersManager::CheckStickerSetNameResult> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(StickersManager::get_check_sticker_set_name_result_object(result.ok()));
-        }
-      });
-  td_->stickers_manager_->check_sticker_set_name(request.name_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createNewStickerSet &request) {
-  CLEAN_INPUT_STRING(request.title_);
-  CLEAN_INPUT_STRING(request.name_);
-  CLEAN_INPUT_STRING(request.source_);
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->create_new_sticker_set(UserId(request.user_id_), std::move(request.title_),
-                                                 std::move(request.name_), get_sticker_type(request.sticker_type_),
-                                                 request.needs_repainting_, std::move(request.stickers_),
-                                                 std::move(request.source_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::addStickerToSet &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->add_sticker_to_set(UserId(request.user_id_), std::move(request.name_),
-                                             std::move(request.sticker_), nullptr, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::replaceStickerInSet &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  if (request.old_sticker_ == nullptr) {
-    return send_error_raw(id, 400, "Old sticker must be non-empty");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->add_sticker_to_set(UserId(request.user_id_), std::move(request.name_),
-                                             std::move(request.new_sticker_), std::move(request.old_sticker_),
-                                             std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setStickerSetThumbnail &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->set_sticker_set_thumbnail(UserId(request.user_id_), std::move(request.name_),
-                                                    std::move(request.thumbnail_), get_sticker_format(request.format_),
-                                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setCustomEmojiStickerSetThumbnail &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->set_custom_emoji_sticker_set_thumbnail(
-      std::move(request.name_), CustomEmojiId(request.custom_emoji_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setStickerSetTitle &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CLEAN_INPUT_STRING(request.title_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->set_sticker_set_title(std::move(request.name_), std::move(request.title_),
-                                                std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteStickerSet &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->delete_sticker_set(std::move(request.name_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setStickerPositionInSet &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->set_sticker_position_in_set(request.sticker_, request.position_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeStickerFromSet &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->remove_sticker_from_set(request.sticker_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setStickerEmojis &request) {
-  CLEAN_INPUT_STRING(request.emojis_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->set_sticker_emojis(request.sticker_, request.emojis_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setStickerKeywords &request) {
-  for (auto &keyword : request.keywords_) {
-    CLEAN_INPUT_STRING(keyword);
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->set_sticker_keywords(request.sticker_, std::move(request.keywords_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setStickerMaskPosition &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->stickers_manager_->set_sticker_mask_position(request.sticker_, std::move(request.mask_position_),
-                                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getOwnedStickerSets &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_created_sticker_sets(StickerSetId(request.offset_sticker_set_id_), request.limit_,
-                                                   std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getRecentStickers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetRecentStickersRequest, request.is_attached_);
-}
-
-void Requests::on_request(uint64 id, td_api::addRecentSticker &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(AddRecentStickerRequest, request.is_attached_, std::move(request.sticker_));
-}
-
-void Requests::on_request(uint64 id, td_api::removeRecentSticker &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(RemoveRecentStickerRequest, request.is_attached_, std::move(request.sticker_));
-}
-
-void Requests::on_request(uint64 id, const td_api::clearRecentStickers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(ClearRecentStickersRequest, request.is_attached_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getFavoriteStickers &request) {
-  CHECK_IS_USER();
-  CREATE_NO_ARGS_REQUEST(GetFavoriteStickersRequest);
-}
-
-void Requests::on_request(uint64 id, td_api::addFavoriteSticker &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(AddFavoriteStickerRequest, std::move(request.sticker_));
-}
-
-void Requests::on_request(uint64 id, td_api::removeFavoriteSticker &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(RemoveFavoriteStickerRequest, std::move(request.sticker_));
-}
-
-void Requests::on_request(uint64 id, td_api::getStickerEmojis &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetStickerEmojisRequest, std::move(request.sticker_));
-}
-
-void Requests::on_request(uint64 id, td_api::searchEmojis &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.text_);
-  for (auto &input_language_code : request.input_language_codes_) {
-    CLEAN_INPUT_STRING(input_language_code);
-  }
-  CREATE_REQUEST(SearchEmojisRequest, std::move(request.text_), std::move(request.input_language_codes_));
-}
-
-void Requests::on_request(uint64 id, td_api::getKeywordEmojis &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.text_);
-  for (auto &input_language_code : request.input_language_codes_) {
-    CLEAN_INPUT_STRING(input_language_code);
-  }
-  CREATE_REQUEST(GetKeywordEmojisRequest, std::move(request.text_), std::move(request.input_language_codes_));
-}
-
-void Requests::on_request(uint64 id, const td_api::getEmojiCategories &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_emoji_groups(get_emoji_group_type(request.type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getAnimatedEmoji &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.emoji_);
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_animated_emoji(std::move(request.emoji_), false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getEmojiSuggestionsUrl &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.language_code_);
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  td_->stickers_manager_->get_emoji_suggestions_url(request.language_code_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getCustomEmojiStickers &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_custom_emoji_stickers(CustomEmojiId::get_custom_emoji_ids(request.custom_emoji_ids_),
-                                                    true, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getDefaultChatPhotoCustomEmojiStickers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_default_custom_emoji_stickers(StickerListType::DialogPhoto, false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getDefaultProfilePhotoCustomEmojiStickers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_default_custom_emoji_stickers(StickerListType::UserProfilePhoto, false,
-                                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getDefaultBackgroundCustomEmojiStickers &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_default_custom_emoji_stickers(StickerListType::Background, false, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getDisallowedChatEmojiStatuses &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->get_sticker_list_emoji_statuses(StickerListType::DisallowedChannelEmojiStatus, false,
-                                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSavedAnimations &request) {
-  CHECK_IS_USER();
-  CREATE_NO_ARGS_REQUEST(GetSavedAnimationsRequest);
-}
-
-void Requests::on_request(uint64 id, td_api::addSavedAnimation &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(AddSavedAnimationRequest, std::move(request.animation_));
-}
-
-void Requests::on_request(uint64 id, td_api::removeSavedAnimation &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(RemoveSavedAnimationRequest, std::move(request.animation_));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSavedNotificationSound &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(GetSavedNotificationSoundRequest, request.notification_sound_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getSavedNotificationSounds &request) {
-  CHECK_IS_USER();
-  CREATE_NO_ARGS_REQUEST(GetSavedNotificationSoundsRequest);
-}
-
-void Requests::on_request(uint64 id, td_api::addSavedNotificationSound &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->notification_settings_manager_->add_saved_ringtone(std::move(request.sound_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeSavedNotificationSound &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST(RemoveSavedNotificationSoundRequest, request.notification_sound_id_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatNotificationSettingsExceptions &request) {
-  CHECK_IS_USER();
-  bool filter_scope = false;
-  NotificationSettingsScope scope = NotificationSettingsScope::Private;
-  if (request.scope_ != nullptr) {
-    filter_scope = true;
-    scope = get_notification_settings_scope(request.scope_);
-  }
-  CREATE_REQUEST(GetChatNotificationSettingsExceptionsRequest, scope, filter_scope, request.compare_sound_);
-}
-
-void Requests::on_request(uint64 id, const td_api::getScopeNotificationSettings &request) {
-  CHECK_IS_USER();
-  if (request.scope_ == nullptr) {
-    return send_error_raw(id, 400, "Scope must be non-empty");
-  }
-  CREATE_REQUEST(GetScopeNotificationSettingsRequest, get_notification_settings_scope(request.scope_));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeChatActionBar &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->remove_dialog_action_bar(DialogId(request.chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::reportChat &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.text_);
-  CREATE_REQUEST_PROMISE();
-  td_->dialog_manager_->report_dialog(DialogId(request.chat_id_), request.option_id_,
-                                      MessageId::get_message_ids(request.message_ids_), request.text_,
-                                      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::reportChatPhoto &request) {
-  CHECK_IS_USER();
-  auto r_report_reason = ReportReason::get_report_reason(std::move(request.reason_), std::move(request.text_));
-  if (r_report_reason.is_error()) {
-    return send_error_raw(id, r_report_reason.error().code(), r_report_reason.error().message());
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  td_->dialog_manager_->report_dialog_photo(DialogId(request.chat_id_), FileId(request.file_id_, 0),
-                                            r_report_reason.move_as_ok(), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::reportMessageReactions &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, sender_dialog_id, get_message_sender_dialog_id(td_, request.sender_id_, false, false));
-  report_message_reactions(td_, {DialogId(request.chat_id_), MessageId(request.message_id_)}, sender_dialog_id,
-                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatStatistics &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->statistics_manager_->get_channel_statistics(DialogId(request.chat_id_), request.is_dark_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatRevenueStatistics &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->statistics_manager_->get_dialog_revenue_statistics(DialogId(request.chat_id_), request.is_dark_,
-                                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatRevenueWithdrawalUrl &request) {
-  CHECK_IS_USER();
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  td_->statistics_manager_->get_dialog_revenue_withdrawal_url(DialogId(request.chat_id_), request.password_,
-                                                              std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatRevenueTransactions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->statistics_manager_->get_dialog_revenue_transactions(DialogId(request.chat_id_), request.offset_, request.limit_,
-                                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStarRevenueStatistics &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->star_manager_->get_star_revenue_statistics(request.owner_id_, request.is_dark_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStarWithdrawalUrl &request) {
-  CHECK_IS_USER();
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  td_->star_manager_->get_star_withdrawal_url(request.owner_id_, request.star_count_, request.password_,
-                                              std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStarAdAccountUrl &request) {
-  CHECK_IS_USER();
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  td_->star_manager_->get_star_ad_account_url(request.owner_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getMessageStatistics &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->statistics_manager_->get_channel_message_statistics({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                           request.is_dark_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStoryStatistics &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->statistics_manager_->get_channel_story_statistics({DialogId(request.chat_id_), StoryId(request.story_id_)},
-                                                         request.is_dark_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getStatisticalGraph &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.token_);
-  CREATE_REQUEST_PROMISE();
-  td_->statistics_manager_->load_statistics_graph(DialogId(request.chat_id_), std::move(request.token_), request.x_,
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setChatNotificationSettings &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->messages_manager_->set_dialog_notification_settings(
-                          DialogId(request.chat_id_), std::move(request.notification_settings_)));
-}
-
-void Requests::on_request(uint64 id, td_api::setForumTopicNotificationSettings &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->forum_topic_manager_->set_forum_topic_notification_settings(
-                          DialogId(request.chat_id_), MessageId(request.message_thread_id_),
-                          std::move(request.notification_settings_)));
-}
-
-void Requests::on_request(uint64 id, td_api::setScopeNotificationSettings &request) {
-  CHECK_IS_USER();
-  if (request.scope_ == nullptr) {
-    return send_error_raw(id, 400, "Scope must be non-empty");
-  }
-  answer_ok_query(id, td_->notification_settings_manager_->set_scope_notification_settings(
-                          get_notification_settings_scope(request.scope_), std::move(request.notification_settings_)));
-}
-
-void Requests::on_request(uint64 id, td_api::setReactionNotificationSettings &request) {
-  CHECK_IS_USER();
-  answer_ok_query(id, td_->notification_settings_manager_->set_reaction_notification_settings(
-                          ReactionNotificationSettings(std::move(request.notification_settings_))));
-}
-
-void Requests::on_request(uint64 id, const td_api::resetAllNotificationSettings &request) {
-  CHECK_IS_USER();
-  td_->notification_settings_manager_->reset_all_notification_settings();
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-}
-
-void Requests::on_request(uint64 id, const td_api::getMapThumbnailFile &request) {
-  DialogId dialog_id(request.chat_id_);
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "getMapThumbnailFile")) {
-    dialog_id = DialogId();
-  }
-
-  auto r_file_id = td_->file_manager_->get_map_thumbnail_file_id(
-      Location(request.location_), request.zoom_, request.width_, request.height_, request.scale_, dialog_id);
-  if (r_file_id.is_error()) {
-    send_closure(td_actor_, &Td::send_error, id, r_file_id.move_as_error());
-  } else {
-    send_closure(td_actor_, &Td::send_result, id, td_->file_manager_->get_file_object(r_file_id.ok()));
-  }
-}
-
-void Requests::on_request(uint64 id, const td_api::getLocalizationTargetInfo &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::get_languages, request.only_local_,
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getLanguagePackInfo &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.language_pack_id_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::search_language_info, request.language_pack_id_,
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getLanguagePackStrings &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.language_pack_id_);
-  for (auto &key : request.keys_) {
-    CLEAN_INPUT_STRING(key);
-  }
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::get_language_pack_strings,
-               std::move(request.language_pack_id_), std::move(request.keys_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::synchronizeLanguagePack &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.language_pack_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::synchronize_language_pack,
-               std::move(request.language_pack_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::addCustomServerLanguagePack &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.language_pack_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::add_custom_server_language,
-               std::move(request.language_pack_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setCustomLanguagePack &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::set_custom_language, std::move(request.info_),
-               std::move(request.strings_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editCustomLanguagePackInfo &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::edit_custom_language_info, std::move(request.info_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setCustomLanguagePackString &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.language_pack_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::set_custom_language_string,
-               std::move(request.language_pack_id_), std::move(request.new_string_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::deleteLanguagePack &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.language_pack_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->language_pack_manager_, &LanguagePackManager::delete_language, std::move(request.language_pack_id_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getOption &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
-  td_->option_manager_->get_option(request.name_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setOption &request) {
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->option_manager_->set_option(request.name_, std::move(request.value_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setPollAnswer &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->set_poll_answer({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                          std::move(request.option_ids_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPollVoters &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->messages_manager_->get_poll_voters({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                          request.option_id_, request.offset_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::stopPoll &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->stop_poll({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                    std::move(request.reply_markup_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::hideSuggestedAction &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  dismiss_suggested_action(SuggestedAction(request.action_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::hideContactCloseBirthdays &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->option_manager_->set_option_boolean("dismiss_birthday_contact_today", true);
-  td_->user_manager_->hide_contact_birthdays(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getBusinessConnection &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.connection_id_);
-  CREATE_REQUEST_PROMISE();
-  td_->business_connection_manager_->get_business_connection(BusinessConnectionId(std::move(request.connection_id_)),
-                                                             std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getLoginUrlInfo &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->link_manager_->get_login_url_info({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                         request.button_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getLoginUrl &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->link_manager_->get_login_url({DialogId(request.chat_id_), MessageId(request.message_id_)}, request.button_id_,
-                                    request.allow_write_access_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::shareUsersWithBot &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  auto user_ids = UserId::get_user_ids(request.shared_user_ids_);
-  auto dialog_ids = transform(user_ids, [](UserId user_id) { return DialogId(user_id); });
-  td_->messages_manager_->share_dialogs_with_bot({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                 request.button_id_, std::move(dialog_ids), true, request.only_check_,
-                                                 std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::shareChatWithBot &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->messages_manager_->share_dialogs_with_bot({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                 request.button_id_, {DialogId(request.shared_chat_id_)}, false,
-                                                 request.only_check_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getInlineQueryResults &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.query_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->inline_queries_manager_->send_inline_query(UserId(request.bot_user_id_), DialogId(request.chat_id_),
-                                                  Location(request.user_location_), request.query_, request.offset_,
-                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::answerInlineQuery &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.next_offset_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->inline_queries_manager_->answer_inline_query(request.inline_query_id_, request.is_personal_,
-                                                    std::move(request.button_), std::move(request.results_),
-                                                    request.cache_time_, request.next_offset_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::savePreparedInlineMessage &request) {
-  CHECK_IS_BOT();
-  CREATE_REQUEST_PROMISE();
-  td_->inline_queries_manager_->save_prepared_inline_message(UserId(request.user_id_), std::move(request.result_),
-                                                             std::move(request.chat_types_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getPreparedInlineMessage &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.prepared_message_id_);
-  CREATE_REQUEST_PROMISE();
-  td_->inline_queries_manager_->get_prepared_inline_message(UserId(request.bot_user_id_), request.prepared_message_id_,
-                                                            std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getGrossingWebAppBots &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->web_app_manager_->get_popular_app_bots(request.offset_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchWebApp &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.web_app_short_name_);
-  CREATE_REQUEST_PROMISE();
-  td_->web_app_manager_->get_web_app(UserId(request.bot_user_id_), request.web_app_short_name_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getWebAppPlaceholder &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->user_manager_->get_web_app_placeholder(UserId(request.bot_user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getWebAppLinkUrl &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.web_app_short_name_);
-  CLEAN_INPUT_STRING(request.start_parameter_);
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  td_->web_app_manager_->request_app_web_view(
-      DialogId(request.chat_id_), UserId(request.bot_user_id_), std::move(request.web_app_short_name_),
-      std::move(request.start_parameter_), WebAppOpenParameters(std::move(request.parameters_)),
-      request.allow_write_access_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getMainWebApp &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.start_parameter_);
-  CREATE_REQUEST_PROMISE();
-  td_->web_app_manager_->request_main_web_view(
-      DialogId(request.chat_id_), UserId(request.bot_user_id_), std::move(request.start_parameter_),
-      WebAppOpenParameters(std::move(request.parameters_)), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getWebAppUrl &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.url_);
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  td_->inline_queries_manager_->get_simple_web_view_url(UserId(request.bot_user_id_), std::move(request.url_),
-                                                        WebAppOpenParameters(std::move(request.parameters_)),
-                                                        std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendWebAppData &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.button_text_);
-  CLEAN_INPUT_STRING(request.data_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->inline_queries_manager_->send_web_view_data(UserId(request.bot_user_id_), std::move(request.button_text_),
-                                                   std::move(request.data_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::openWebApp &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.url_);
-  CREATE_REQUEST_PROMISE();
-  td_->web_app_manager_->request_web_view(DialogId(request.chat_id_), UserId(request.bot_user_id_),
-                                          MessageId(request.message_thread_id_), std::move(request.reply_to_),
-                                          std::move(request.url_), WebAppOpenParameters(std::move(request.parameters_)),
-                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::closeWebApp &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->web_app_manager_->close_web_view(request.web_app_launch_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::answerWebAppQuery &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.web_app_query_id_);
-  CREATE_REQUEST_PROMISE();
-  td_->inline_queries_manager_->answer_web_view_query(request.web_app_query_id_, std::move(request.result_),
-                                                      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkWebAppFileDownload &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.file_name_);
-  CLEAN_INPUT_STRING(request.url_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->web_app_manager_->check_download_file_params(UserId(request.bot_user_id_), request.file_name_, request.url_,
-                                                    std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getCallbackQueryAnswer &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->callback_queries_manager_->send_callback_query({DialogId(request.chat_id_), MessageId(request.message_id_)},
-                                                      std::move(request.payload_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::answerCallbackQuery &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.text_);
-  CLEAN_INPUT_STRING(request.url_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->callback_queries_manager_->answer_callback_query(request.callback_query_id_, request.text_, request.show_alert_,
-                                                        request.url_, request.cache_time_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::answerShippingQuery &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.error_message_);
-  CREATE_OK_REQUEST_PROMISE();
-  answer_shipping_query(td_, request.shipping_query_id_, std::move(request.shipping_options_), request.error_message_,
-                        std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::answerPreCheckoutQuery &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.error_message_);
-  CREATE_OK_REQUEST_PROMISE();
-  answer_pre_checkout_query(td_, request.pre_checkout_query_id_, request.error_message_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getBankCardInfo &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.bank_card_number_);
-  CREATE_REQUEST_PROMISE();
-  get_bank_card_info(td_, request.bank_card_number_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getPaymentForm &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_payment_form(td_, std::move(request.input_invoice_), request.theme_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::validateOrderInfo &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  validate_order_info(td_, std::move(request.input_invoice_), std::move(request.order_info_), request.allow_save_,
-                      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendPaymentForm &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.order_info_id_);
-  CLEAN_INPUT_STRING(request.shipping_option_id_);
-  CREATE_REQUEST_PROMISE();
-  send_payment_form(td_, std::move(request.input_invoice_), request.payment_form_id_, request.order_info_id_,
-                    request.shipping_option_id_, request.credentials_, request.tip_amount_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPaymentReceipt &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_payment_receipt(td_, {DialogId(request.chat_id_), MessageId(request.message_id_)}, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSavedOrderInfo &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_saved_order_info(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteSavedOrderInfo &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  delete_saved_order_info(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteSavedCredentials &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  delete_saved_credentials(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setGiftSettings &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda(
-      [settings = StarGiftSettings(request.settings_), promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(G()->user_manager(), &UserManager::on_update_my_user_gift_settings, std::move(settings),
-                     std::move(promise));
-      });
-  GlobalPrivacySettings::set_global_privacy_settings(td_, GlobalPrivacySettings(std::move(request.settings_)),
-                                                     std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getAvailableGifts &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->star_gift_manager_->get_gift_payment_options(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendGift &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, owner_dialog_id, get_message_sender_dialog_id(td_, request.owner_id_, true, false));
-  td_->star_gift_manager_->send_gift(request.gift_id_, owner_dialog_id, std::move(request.text_), request.is_private_,
-                                     request.pay_for_upgrade_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sellGift &request) {
-  CHECK_IS_USER_OR_BUSINESS();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->star_gift_manager_->convert_gift(BusinessConnectionId(std::move(request.business_connection_id_)),
-                                        StarGiftId(request.received_gift_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleGiftIsSaved &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->star_gift_manager_->save_gift(StarGiftId(request.received_gift_id_), request.is_saved_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setPinnedGifts &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, owner_dialog_id, get_message_sender_dialog_id(td_, request.owner_id_, true, false));
-  td_->star_gift_manager_->set_dialog_pinned_gifts(
-      owner_dialog_id,
-      transform(request.received_gift_ids_,
-                [](const string &received_gift_id) { return StarGiftId(received_gift_id); }),
-      std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::toggleChatGiftNotifications &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->star_gift_manager_->toggle_chat_star_gift_notifications(DialogId(request.chat_id_), request.are_enabled_,
-                                                               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getGiftUpgradePreview &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->star_gift_manager_->get_gift_upgrade_preview(request.gift_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::upgradeGift &request) {
-  CHECK_IS_USER_OR_BUSINESS();
-  CREATE_REQUEST_PROMISE();
-  td_->star_gift_manager_->upgrade_gift(BusinessConnectionId(std::move(request.business_connection_id_)),
-                                        StarGiftId(request.received_gift_id_), request.keep_original_details_,
-                                        request.star_count_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::transferGift &request) {
-  CHECK_IS_USER_OR_BUSINESS();
-  CREATE_OK_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, owner_dialog_id, get_message_sender_dialog_id(td_, request.new_owner_id_, true, false));
-  td_->star_gift_manager_->transfer_gift(BusinessConnectionId(std::move(request.business_connection_id_)),
-                                         StarGiftId(request.received_gift_id_), owner_dialog_id, request.star_count_,
-                                         std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getReceivedGifts &request) {
-  CHECK_IS_USER_OR_BUSINESS();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  TRY_RESULT_PROMISE(promise, owner_dialog_id, get_message_sender_dialog_id(td_, request.owner_id_, true, false));
-  td_->star_gift_manager_->get_saved_star_gifts(
-      BusinessConnectionId(std::move(request.business_connection_id_)), owner_dialog_id, request.exclude_unsaved_,
-      request.exclude_saved_, request.exclude_unlimited_, request.exclude_limited_, request.exclude_upgraded_,
-      request.sort_by_price_, request.offset_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getReceivedGift &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->star_gift_manager_->get_saved_star_gift(StarGiftId(request.received_gift_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getUpgradedGift &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST_PROMISE();
-  td_->star_gift_manager_->get_upgraded_gift(request.name_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getUpgradedGiftWithdrawalUrl &request) {
-  CHECK_IS_USER();
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  td_->star_gift_manager_->get_star_gift_withdrawal_url(StarGiftId(request.received_gift_id_), request.password_,
-                                                        std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::createInvoiceLink &request) {
-  CHECK_IS_BOT();
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  export_invoice(td_, BusinessConnectionId(std::move(request.business_connection_id_)), std::move(request.invoice_),
-                 std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::refundStarPayment &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.telegram_payment_charge_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->star_manager_->refund_star_payment(UserId(request.user_id_), request.telegram_payment_charge_id_,
-                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getPassportElement &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.password_);
-  if (request.type_ == nullptr) {
-    return send_error_raw(id, 400, "Type must be non-empty");
-  }
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::get_secure_value, std::move(request.password_),
-               get_secure_value_type_td_api(request.type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getAllPassportElements &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.password_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::get_all_secure_values, std::move(request.password_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setPassportElement &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.password_);
-  auto r_secure_value = get_secure_value(td_->file_manager_.get(), std::move(request.element_));
-  if (r_secure_value.is_error()) {
-    return send_error_raw(id, 400, r_secure_value.error().message());
-  }
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::set_secure_value, std::move(request.password_),
-               r_secure_value.move_as_ok(), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deletePassportElement &request) {
-  CHECK_IS_USER();
-  if (request.type_ == nullptr) {
-    return send_error_raw(id, 400, "Type must be non-empty");
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::delete_secure_value, get_secure_value_type_td_api(request.type_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setPassportElementErrors &request) {
-  CHECK_IS_BOT();
-  auto r_input_user = td_->user_manager_->get_input_user(UserId(request.user_id_));
-  if (r_input_user.is_error()) {
-    return send_error_raw(id, r_input_user.error().code(), r_input_user.error().message());
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::set_secure_value_errors, td_, r_input_user.move_as_ok(),
-               std::move(request.errors_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getPreferredCountryLanguage &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.country_code_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::get_preferred_country_language, std::move(request.country_code_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendEmailAddressVerificationCode &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.email_address_);
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<SentEmailCode> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_email_address_authentication_code_info_object());
-    }
-  });
-  send_closure(td_->password_manager_, &PasswordManager::send_email_address_verification_code,
-               std::move(request.email_address_), std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::resendEmailAddressVerificationCode &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<SentEmailCode> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(result.ok().get_email_address_authentication_code_info_object());
-    }
-  });
-  send_closure(td_->password_manager_, &PasswordManager::resend_email_address_verification_code,
-               std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkEmailAddressVerificationCode &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.code_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->password_manager_, &PasswordManager::check_email_address_verification_code,
-               std::move(request.code_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getPassportAuthorizationForm &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.public_key_);
-  CLEAN_INPUT_STRING(request.scope_);
-  CLEAN_INPUT_STRING(request.nonce_);
-  UserId bot_user_id(request.bot_user_id_);
-  if (!bot_user_id.is_valid()) {
-    return send_error_raw(id, 400, "Bot user identifier invalid");
-  }
-  if (request.nonce_.empty()) {
-    return send_error_raw(id, 400, "Nonce must be non-empty");
-  }
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::get_passport_authorization_form, bot_user_id,
-               std::move(request.scope_), std::move(request.public_key_), std::move(request.nonce_),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getPassportAuthorizationFormAvailableElements &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.password_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::get_passport_authorization_form_available_elements,
-               request.authorization_form_id_, std::move(request.password_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendPassportAuthorizationForm &request) {
-  CHECK_IS_USER();
-  for (auto &type : request.types_) {
-    if (type == nullptr) {
-      return send_error_raw(id, 400, "Type must be non-empty");
-    }
-  }
-
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->secure_manager_, &SecureManager::send_passport_authorization_form, request.authorization_form_id_,
-               get_secure_value_types_td_api(request.types_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSupportUser &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->user_manager_->get_support_user(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getInstalledBackgrounds &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->background_manager_->get_backgrounds(request.for_dark_theme_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getBackgroundUrl &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.name_);
-  Result<string> r_url = LinkManager::get_background_url(request.name_, std::move(request.type_));
-  if (r_url.is_error()) {
-    return send_closure(td_actor_, &Td::send_error, id, r_url.move_as_error());
-  }
-
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::httpUrl>(r_url.ok()));
-}
-
-void Requests::on_request(uint64 id, td_api::searchBackground &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.name_);
-  CREATE_REQUEST(SearchBackgroundRequest, std::move(request.name_));
-}
-
-void Requests::on_request(uint64 id, const td_api::setDefaultBackground &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->background_manager_->set_background(request.background_.get(), request.type_.get(), request.for_dark_theme_,
-                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::deleteDefaultBackground &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->background_manager_->delete_background(request.for_dark_theme_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeInstalledBackground &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->background_manager_->remove_background(BackgroundId(request.background_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::resetInstalledBackgrounds &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->background_manager_->reset_backgrounds(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getRecentlyVisitedTMeUrls &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.referrer_);
-  CREATE_REQUEST_PROMISE();
-  td_->link_manager_->get_recent_me_urls(request.referrer_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setBotUpdatesStatus &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.error_message_);
-  CREATE_OK_REQUEST_PROMISE();
-  set_bot_updates_status(td_, request.pending_update_count_, request.error_message_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::sendCustomRequest &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.method_);
-  CLEAN_INPUT_STRING(request.parameters_);
-  CREATE_REQUEST_PROMISE();
-  send_bot_custom_query(td_, request.method_, request.parameters_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::answerCustomQuery &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.data_);
-  CREATE_OK_REQUEST_PROMISE();
-  answer_bot_custom_query(td_, request.custom_query_id_, request.data_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setAlarm &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->alarm_manager_, &AlarmManager::set_alarm, request.seconds_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchHashtags &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.prefix_);
-  CREATE_REQUEST_PROMISE();
-  auto query_promise =
-      PromiseCreator::lambda([promise = std::move(promise)](Result<std::vector<string>> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(td_api::make_object<td_api::hashtags>(result.move_as_ok()));
-        }
-      });
-  send_closure(td_->hashtag_hints_, &HashtagHints::query, std::move(request.prefix_), request.limit_,
-               std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::removeRecentHashtag &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.hashtag_);
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(td_->hashtag_hints_, &HashtagHints::remove_hashtag, std::move(request.hashtag_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPremiumLimit &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_premium_limit(request.limit_type_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPremiumFeatures &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_premium_features(td_, request.source_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPremiumStickerExamples &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->search_stickers(StickerType::Regular, "⭐️⭐️", string(), vector<string>(), 0, 100,
-                                          std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPremiumInfoSticker &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->stickers_manager_->load_premium_gift_sticker(request.month_count_, 0, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::viewPremiumFeature &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  view_premium_feature(td_, request.feature_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::clickPremiumSubscriptionButton &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  click_premium_subscription_button(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPremiumState &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_premium_state(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPremiumGiftPaymentOptions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_premium_gift_payment_options(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPremiumGiveawayPaymentOptions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_premium_giveaway_options(td_, DialogId(request.boosted_chat_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::checkPremiumGiftCode &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.code_);
-  CREATE_REQUEST_PROMISE();
-  check_premium_gift_code(td_, request.code_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::applyPremiumGiftCode &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.code_);
-  CREATE_OK_REQUEST_PROMISE();
-  apply_premium_gift_code(td_, request.code_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::giftPremiumWithStars &request) {
-  CHECK_IS_BOT();
-  CREATE_OK_REQUEST_PROMISE();
-  gift_premium_with_stars(td_, UserId(request.user_id_), request.star_count_, request.month_count_,
-                          std::move(request.text_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::launchPrepaidGiveaway &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  launch_prepaid_premium_giveaway(td_, request.giveaway_id_, std::move(request.parameters_), request.winner_count_,
-                                  request.star_count_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getGiveawayInfo &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_premium_giveaway_info(td_, {DialogId(request.chat_id_), MessageId(request.message_id_)}, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStarPaymentOptions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->star_manager_->get_star_payment_options(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStarGiftPaymentOptions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->star_manager_->get_star_gift_payment_options(UserId(request.user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getStarGiveawayPaymentOptions &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->star_manager_->get_star_giveaway_payment_options(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getStarTransactions &request) {
-  CLEAN_INPUT_STRING(request.subscription_id_);
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->star_manager_->get_star_transactions(std::move(request.owner_id_), request.subscription_id_, request.offset_,
-                                            request.limit_, std::move(request.direction_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getStarSubscriptions &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->star_manager_->get_star_subscriptions(request.only_expiring_, request.offset_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editStarSubscription &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.subscription_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->star_manager_->edit_star_subscription(request.subscription_id_, request.is_canceled_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editUserStarSubscription &request) {
-  CHECK_IS_BOT();
-  CLEAN_INPUT_STRING(request.telegram_payment_charge_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->star_manager_->edit_user_star_subscription(UserId(request.user_id_), request.telegram_payment_charge_id_,
-                                                  request.is_canceled_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::reuseStarSubscription &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.subscription_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->star_manager_->reuse_star_subscription(request.subscription_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::setChatAffiliateProgram &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  td_->referral_program_manager_->set_dialog_referral_program(
-      DialogId(request.chat_id_), ReferralProgramParameters(request.parameters_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchChatAffiliateProgram &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.username_);
-  CLEAN_INPUT_STRING(request.referrer_);
-  CREATE_REQUEST_PROMISE();
-  td_->referral_program_manager_->search_dialog_referral_program(request.username_, request.referrer_,
-                                                                 std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::searchAffiliatePrograms &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->referral_program_manager_->search_referral_programs(request.affiliate_,
-                                                           get_referral_program_sort_order(request.sort_order_),
-                                                           request.offset_, request.limit_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::connectAffiliateProgram &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->referral_program_manager_->connect_referral_program(request.affiliate_, UserId(request.bot_user_id_),
-                                                           std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::disconnectAffiliateProgram &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.url_);
-  CREATE_REQUEST_PROMISE();
-  td_->referral_program_manager_->revoke_referral_program(request.affiliate_, request.url_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getConnectedAffiliateProgram &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  td_->referral_program_manager_->get_connected_referral_program(request.affiliate_, UserId(request.bot_user_id_),
-                                                                 std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getConnectedAffiliatePrograms &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.offset_);
-  CREATE_REQUEST_PROMISE();
-  td_->referral_program_manager_->get_connected_referral_programs(request.affiliate_, request.offset_, request.limit_,
-                                                                  std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::canPurchaseFromStore &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  can_purchase_premium(td_, std::move(request.purpose_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::assignAppStoreTransaction &request) {
-  CHECK_IS_USER();
-  CREATE_OK_REQUEST_PROMISE();
-  assign_app_store_transaction(td_, request.receipt_, std::move(request.purpose_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::assignGooglePlayTransaction &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.package_name_);
-  CLEAN_INPUT_STRING(request.store_product_id_);
-  CLEAN_INPUT_STRING(request.purchase_token_);
-  CREATE_OK_REQUEST_PROMISE();
-  assign_play_market_transaction(td_, request.package_name_, request.store_product_id_, request.purchase_token_,
-                                 std::move(request.purpose_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getBusinessFeatures &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_business_features(td_, request.source_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::acceptTermsOfService &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.terms_of_service_id_);
-  CREATE_OK_REQUEST_PROMISE();
-  td_->terms_of_service_manager_->accept_terms_of_service(std::move(request.terms_of_service_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getCountries &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->country_info_manager_->get_countries(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getCountryCode &request) {
-  CREATE_TEXT_REQUEST_PROMISE();
-  td_->country_info_manager_->get_current_country_code(std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getPhoneNumberInfo &request) {
-  CREATE_REQUEST_PROMISE();
-  td_->country_info_manager_->get_phone_number_info(request.phone_number_prefix_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getCollectibleItemInfo &request) {
-  CREATE_REQUEST_PROMISE();
-  get_collectible_info(td_, std::move(request.type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getApplicationDownloadLink &request) {
-  CHECK_IS_USER();
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  get_invite_text(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::getDeepLinkInfo &request) {
-  CLEAN_INPUT_STRING(request.link_);
-  CREATE_REQUEST_PROMISE();
-  td_->link_manager_->get_deep_link_info(request.link_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getApplicationConfig &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  send_closure(G()->config_manager(), &ConfigManager::get_app_config, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::saveApplicationLogEvent &request) {
-  CHECK_IS_USER();
-  CLEAN_INPUT_STRING(request.type_);
-  CREATE_OK_REQUEST_PROMISE();
-  save_app_log(td_, request.type_, DialogId(request.chat_id_), convert_json_value(std::move(request.data_)),
-               std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::addProxy &request) {
-  CLEAN_INPUT_STRING(request.server_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(G()->connection_creator(), &ConnectionCreator::add_proxy, -1, std::move(request.server_), request.port_,
-               request.enable_, std::move(request.type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::editProxy &request) {
-  if (request.proxy_id_ < 0) {
-    return send_error_raw(id, 400, "Proxy identifier invalid");
-  }
-  CLEAN_INPUT_STRING(request.server_);
-  CREATE_REQUEST_PROMISE();
-  send_closure(G()->connection_creator(), &ConnectionCreator::add_proxy, request.proxy_id_, std::move(request.server_),
-               request.port_, request.enable_, std::move(request.type_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::enableProxy &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->connection_creator(), &ConnectionCreator::enable_proxy, request.proxy_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::disableProxy &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->connection_creator(), &ConnectionCreator::disable_proxy, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::removeProxy &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->connection_creator(), &ConnectionCreator::remove_proxy, request.proxy_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getProxies &request) {
-  CREATE_REQUEST_PROMISE();
-  send_closure(G()->connection_creator(), &ConnectionCreator::get_proxies, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getProxyLink &request) {
-  CREATE_HTTP_URL_REQUEST_PROMISE();
-  send_closure(G()->connection_creator(), &ConnectionCreator::get_proxy_link, request.proxy_id_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::pingProxy &request) {
-  CREATE_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<double> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(td_api::make_object<td_api::seconds>(result.move_as_ok()));
-    }
-  });
-  send_closure(G()->connection_creator(), &ConnectionCreator::ping_proxy, request.proxy_id_, std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getUserSupportInfo &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  get_user_info(td_, UserId(request.user_id_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, td_api::setUserSupportInfo &request) {
-  CHECK_IS_USER();
-  CREATE_REQUEST_PROMISE();
-  set_user_info(td_, UserId(request.user_id_), std::move(request.message_), std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::getSupportName &request) {
-  CHECK_IS_USER();
-  CREATE_TEXT_REQUEST_PROMISE();
-  get_support_name(td_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::searchQuote &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getTextEntities &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::parseTextEntities &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::parseMarkdown &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getMarkdownText &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::searchStringsByPrefix &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::checkQuickReplyShortcutName &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getCountryFlagEmoji &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getFileMimeType &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getFileExtension &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::cleanFileName &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getLanguagePackString &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getPhoneNumberInfoSync &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getPushReceiverId &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getChatFolderDefaultIconName &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getJsonValue &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getJsonString &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getThemeParametersJsonString &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::setLogStream &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getLogStream &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::setLogVerbosityLevel &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getLogVerbosityLevel &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getLogTags &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::setLogTagVerbosityLevel &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::getLogTagVerbosityLevel &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::addLogMessage &request) {
-  UNREACHABLE();
-}
-
-// test
-void Requests::on_request(uint64 id, const td_api::testNetwork &request) {
-  CREATE_OK_REQUEST_PROMISE();
-  auto query_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<string> result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      promise.set_value(Unit());
-    }
-  });
-  td_->country_info_manager_->get_current_country_code(std::move(query_promise));
-}
-
-void Requests::on_request(uint64 id, td_api::testProxy &request) {
-  auto r_proxy = Proxy::create_proxy(std::move(request.server_), request.port_, request.type_.get());
-  if (r_proxy.is_error()) {
-    return send_closure(td_actor_, &Td::send_error, id, r_proxy.move_as_error());
-  }
-  CREATE_OK_REQUEST_PROMISE();
-  send_closure(G()->connection_creator(), &ConnectionCreator::test_proxy, r_proxy.move_as_ok(), request.dc_id_,
-               request.timeout_, std::move(promise));
-}
-
-void Requests::on_request(uint64 id, const td_api::testGetDifference &request) {
-  td_->updates_manager_->get_difference("testGetDifference");
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-}
-
-void Requests::on_request(uint64 id, const td_api::testUseUpdate &request) {
-  send_closure(td_actor_, &Td::send_result, id, nullptr);
-}
-
-void Requests::on_request(uint64 id, const td_api::testReturnError &request) {
-  UNREACHABLE();
-}
-
-void Requests::on_request(uint64 id, const td_api::testCallEmpty &request) {
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::ok>());
-}
-
-void Requests::on_request(uint64 id, const td_api::testSquareInt &request) {
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::testInt>(request.x_ * request.x_));
-}
-
-void Requests::on_request(uint64 id, td_api::testCallString &request) {
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::testString>(std::move(request.x_)));
-}
-
-void Requests::on_request(uint64 id, td_api::testCallBytes &request) {
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::testBytes>(std::move(request.x_)));
-}
-
-void Requests::on_request(uint64 id, td_api::testCallVectorInt &request) {
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::testVectorInt>(std::move(request.x_)));
-}
-
-void Requests::on_request(uint64 id, td_api::testCallVectorIntObject &request) {
-  send_closure(td_actor_, &Td::send_result, id,
-               td_api::make_object<td_api::testVectorIntObject>(std::move(request.x_)));
-}
-
-void Requests::on_request(uint64 id, td_api::testCallVectorString &request) {
-  send_closure(td_actor_, &Td::send_result, id, td_api::make_object<td_api::testVectorString>(std::move(request.x_)));
-}
-
-void Requests::on_request(uint64 id, td_api::testCallVectorStringObject &request) {
-  send_closure(td_actor_, &Td::send_result, id,
-               td_api::make_object<td_api::testVectorStringObject>(std::move(request.x_)));
-}
-
-#undef CLEAN_INPUT_STRING
-#undef CHECK_IS_BOT
-#undef CHECK_IS_USER
-#undef CREATE_NO_ARGS_REQUEST
-#undef CREATE_REQUEST
-#undef CREATE_REQUEST_PROMISE
-#undef CREATE_OK_REQUEST_PROMISE
-#undef CREATE_TEXT_REQUEST_PROMISE
-#undef CREATE_HTTP_URL_REQUEST_PROMISE
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Requests.h b/third-party/td/td/td/telegram/Requests.h
deleted file mode 100644
index e0c5f5b932..0000000000
--- a/third-party/td/td/td/telegram/Requests.h
+++ /dev/null
@@ -1,1789 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/MovableValue.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Requests {
- public:
-  explicit Requests(Td *td);
-
-  void run_request(uint64 id, td_api::object_ptr<td_api::Function> &&function);
-
- private:
-  Td *td_ = nullptr;
-  ActorId<Td> td_actor_;
-
-  void send_error_raw(uint64 id, int32 code, CSlice error);
-
-  void answer_ok_query(uint64 id, Status status);
-
-  class RequestPromiseBase {
-    enum class State : int32 { Empty, Ready, Complete };
-    ActorId<Td> td_actor_;
-    uint64 request_id_;
-    MovableValue<State> state_{State::Empty};
-
-   public:
-    void set_value(td_api::object_ptr<td_api::Object> value) {
-      CHECK(state_.get() == State::Ready);
-      send_closure(td_actor_, &Td::send_result, request_id_, std::move(value));
-      state_ = State::Complete;
-    }
-
-    void set_error(Status &&error) {
-      if (state_.get() == State::Ready) {
-        send_closure(td_actor_, &Td::send_error, request_id_, std::move(error));
-        state_ = State::Complete;
-      }
-    }
-
-    RequestPromiseBase(const RequestPromiseBase &) = delete;
-    RequestPromiseBase &operator=(const RequestPromiseBase &) = delete;
-    RequestPromiseBase(RequestPromiseBase &&) = default;
-    RequestPromiseBase &operator=(RequestPromiseBase &&) = default;
-    virtual ~RequestPromiseBase() {
-      if (state_.get() == State::Ready) {
-        send_closure(td_actor_, &Td::send_error, request_id_, Status::Error("Lost promise"));
-      }
-    }
-
-    RequestPromiseBase(ActorId<Td> td_actor, uint64 request_id)
-        : td_actor_(std::move(td_actor)), request_id_(request_id), state_(State::Ready) {
-    }
-  };
-
-  template <class T>
-  class RequestPromise final
-      : public PromiseInterface<T>
-      , private RequestPromiseBase {
-   public:
-    void set_value(T &&value) final {
-      RequestPromiseBase::set_value(std::move(value));
-    }
-
-    void set_error(Status &&error) final {
-      RequestPromiseBase::set_error(std::move(error));
-    }
-
-    RequestPromise(ActorId<Td> td_actor, uint64 request_id) : RequestPromiseBase(std::move(td_actor), request_id) {
-    }
-  };
-
-  template <class T>
-  Promise<T> create_request_promise(uint64 request_id) const {
-    return Promise<T>(td::make_unique<RequestPromise<T>>(td_actor_, request_id));
-  }
-
-  Promise<Unit> create_ok_request_promise(uint64 id);
-
-  Promise<string> create_text_request_promise(uint64 id);
-
-  Promise<string> create_http_url_request_promise(uint64 id);
-
-  template <class T>
-  void on_request(uint64 id, const T &) = delete;
-
-  void on_request(uint64 id, const td_api::setTdlibParameters &request);
-
-  void on_request(uint64 id, const td_api::getAuthorizationState &request);
-
-  void on_request(uint64 id, td_api::setAuthenticationPhoneNumber &request);
-
-  void on_request(uint64 id, td_api::sendAuthenticationFirebaseSms &request);
-
-  void on_request(uint64 id, td_api::reportAuthenticationCodeMissing &request);
-
-  void on_request(uint64 id, td_api::setAuthenticationEmailAddress &request);
-
-  void on_request(uint64 id, td_api::resendAuthenticationCode &request);
-
-  void on_request(uint64 id, td_api::checkAuthenticationEmailCode &request);
-
-  void on_request(uint64 id, td_api::checkAuthenticationCode &request);
-
-  void on_request(uint64 id, td_api::registerUser &request);
-
-  void on_request(uint64 id, const td_api::requestQrCodeAuthentication &request);
-
-  void on_request(uint64 id, const td_api::resetAuthenticationEmailAddress &request);
-
-  void on_request(uint64 id, td_api::checkAuthenticationPassword &request);
-
-  void on_request(uint64 id, const td_api::requestAuthenticationPasswordRecovery &request);
-
-  void on_request(uint64 id, td_api::checkAuthenticationPasswordRecoveryCode &request);
-
-  void on_request(uint64 id, td_api::recoverAuthenticationPassword &request);
-
-  void on_request(uint64 id, const td_api::logOut &request);
-
-  void on_request(uint64 id, const td_api::close &request);
-
-  void on_request(uint64 id, const td_api::destroy &request);
-
-  void on_request(uint64 id, td_api::checkAuthenticationBotToken &request);
-
-  void on_request(uint64 id, td_api::confirmQrCodeAuthentication &request);
-
-  void on_request(uint64 id, td_api::setDatabaseEncryptionKey &request);
-
-  void on_request(uint64 id, const td_api::getCurrentState &request);
-
-  void on_request(uint64 id, const td_api::getPasswordState &request);
-
-  void on_request(uint64 id, td_api::setPassword &request);
-
-  void on_request(uint64 id, td_api::setLoginEmailAddress &request);
-
-  void on_request(uint64 id, const td_api::resendLoginEmailAddressCode &request);
-
-  void on_request(uint64 id, td_api::checkLoginEmailAddressCode &request);
-
-  void on_request(uint64 id, td_api::getRecoveryEmailAddress &request);
-
-  void on_request(uint64 id, td_api::setRecoveryEmailAddress &request);
-
-  void on_request(uint64 id, td_api::checkRecoveryEmailAddressCode &request);
-
-  void on_request(uint64 id, const td_api::resendRecoveryEmailAddressCode &request);
-
-  void on_request(uint64 id, const td_api::cancelRecoveryEmailAddressVerification &request);
-
-  void on_request(uint64 id, const td_api::requestPasswordRecovery &request);
-
-  void on_request(uint64 id, td_api::checkPasswordRecoveryCode &request);
-
-  void on_request(uint64 id, td_api::recoverPassword &request);
-
-  void on_request(uint64 id, const td_api::resetPassword &request);
-
-  void on_request(uint64 id, const td_api::cancelPasswordReset &request);
-
-  void on_request(uint64 id, const td_api::getTemporaryPasswordState &request);
-
-  void on_request(uint64 id, td_api::createTemporaryPassword &request);
-
-  void on_request(uint64 id, td_api::processPushNotification &request);
-
-  void on_request(uint64 id, td_api::registerDevice &request);
-
-  void on_request(uint64 id, td_api::getUserPrivacySettingRules &request);
-
-  void on_request(uint64 id, td_api::setUserPrivacySettingRules &request);
-
-  void on_request(uint64 id, const td_api::getDefaultMessageAutoDeleteTime &request);
-
-  void on_request(uint64 id, const td_api::setDefaultMessageAutoDeleteTime &request);
-
-  void on_request(uint64 id, const td_api::getAccountTtl &request);
-
-  void on_request(uint64 id, const td_api::setAccountTtl &request);
-
-  void on_request(uint64 id, td_api::deleteAccount &request);
-
-  void on_request(uint64 id, td_api::sendPhoneNumberCode &request);
-
-  void on_request(uint64 id, td_api::sendPhoneNumberFirebaseSms &request);
-
-  void on_request(uint64 id, td_api::reportPhoneNumberCodeMissing &request);
-
-  void on_request(uint64 id, td_api::resendPhoneNumberCode &request);
-
-  void on_request(uint64 id, td_api::checkPhoneNumberCode &request);
-
-  void on_request(uint64 id, const td_api::getUserLink &request);
-
-  void on_request(uint64 id, td_api::searchUserByToken &request);
-
-  void on_request(uint64 id, const td_api::getActiveSessions &request);
-
-  void on_request(uint64 id, const td_api::terminateSession &request);
-
-  void on_request(uint64 id, const td_api::terminateAllOtherSessions &request);
-
-  void on_request(uint64 id, const td_api::confirmSession &request);
-
-  void on_request(uint64 id, const td_api::toggleSessionCanAcceptCalls &request);
-
-  void on_request(uint64 id, const td_api::toggleSessionCanAcceptSecretChats &request);
-
-  void on_request(uint64 id, const td_api::setInactiveSessionTtl &request);
-
-  void on_request(uint64 id, const td_api::getConnectedWebsites &request);
-
-  void on_request(uint64 id, const td_api::disconnectWebsite &request);
-
-  void on_request(uint64 id, const td_api::disconnectAllWebsites &request);
-
-  void on_request(uint64 id, const td_api::getMe &request);
-
-  void on_request(uint64 id, const td_api::getUser &request);
-
-  void on_request(uint64 id, const td_api::getUserFullInfo &request);
-
-  void on_request(uint64 id, const td_api::getBasicGroup &request);
-
-  void on_request(uint64 id, const td_api::getBasicGroupFullInfo &request);
-
-  void on_request(uint64 id, const td_api::getSupergroup &request);
-
-  void on_request(uint64 id, const td_api::getSupergroupFullInfo &request);
-
-  void on_request(uint64 id, const td_api::getSecretChat &request);
-
-  void on_request(uint64 id, const td_api::getChat &request);
-
-  void on_request(uint64 id, const td_api::getMessage &request);
-
-  void on_request(uint64 id, const td_api::getMessageLocally &request);
-
-  void on_request(uint64 id, const td_api::getRepliedMessage &request);
-
-  void on_request(uint64 id, const td_api::getChatPinnedMessage &request);
-
-  void on_request(uint64 id, const td_api::getCallbackQueryMessage &request);
-
-  void on_request(uint64 id, const td_api::getMessageThread &request);
-
-  void on_request(uint64 id, const td_api::getMessageReadDate &request);
-
-  void on_request(uint64 id, const td_api::getMessageViewers &request);
-
-  void on_request(uint64 id, const td_api::getMessages &request);
-
-  void on_request(uint64 id, const td_api::getMessageProperties &request);
-
-  void on_request(uint64 id, const td_api::getChatSponsoredMessages &request);
-
-  void on_request(uint64 id, const td_api::clickChatSponsoredMessage &request);
-
-  void on_request(uint64 id, const td_api::reportChatSponsoredMessage &request);
-
-  void on_request(uint64 id, td_api::getSearchSponsoredChats &request);
-
-  void on_request(uint64 id, const td_api::viewSponsoredChat &request);
-
-  void on_request(uint64 id, const td_api::openSponsoredChat &request);
-
-  void on_request(uint64 id, const td_api::reportSponsoredChat &request);
-
-  void on_request(uint64 id, const td_api::getMessageLink &request);
-
-  void on_request(uint64 id, const td_api::getMessageEmbeddingCode &request);
-
-  void on_request(uint64 id, td_api::getMessageLinkInfo &request);
-
-  void on_request(uint64 id, td_api::translateText &request);
-
-  void on_request(uint64 id, td_api::translateMessageText &request);
-
-  void on_request(uint64 id, const td_api::recognizeSpeech &request);
-
-  void on_request(uint64 id, const td_api::rateSpeechRecognition &request);
-
-  void on_request(uint64 id, const td_api::getFile &request);
-
-  void on_request(uint64 id, td_api::getRemoteFile &request);
-
-  void on_request(uint64 id, const td_api::getStorageStatistics &request);
-
-  void on_request(uint64 id, const td_api::getStorageStatisticsFast &request);
-
-  void on_request(uint64 id, const td_api::getDatabaseStatistics &request);
-
-  void on_request(uint64 id, td_api::optimizeStorage &request);
-
-  void on_request(uint64 id, const td_api::getNetworkStatistics &request);
-
-  void on_request(uint64 id, const td_api::resetNetworkStatistics &request);
-
-  void on_request(uint64 id, td_api::addNetworkStatistics &request);
-
-  void on_request(uint64 id, const td_api::setNetworkType &request);
-
-  void on_request(uint64 id, const td_api::getAutoDownloadSettingsPresets &request);
-
-  void on_request(uint64 id, const td_api::setAutoDownloadSettings &request);
-
-  void on_request(uint64 id, const td_api::getAutosaveSettings &request);
-
-  void on_request(uint64 id, td_api::setAutosaveSettings &request);
-
-  void on_request(uint64 id, const td_api::clearAutosaveSettingsExceptions &request);
-
-  void on_request(uint64 id, const td_api::getRecommendedChats &request);
-
-  void on_request(uint64 id, const td_api::getChatSimilarChats &request);
-
-  void on_request(uint64 id, const td_api::getChatSimilarChatCount &request);
-
-  void on_request(uint64 id, const td_api::openChatSimilarChat &request);
-
-  void on_request(uint64 id, const td_api::getBotSimilarBots &request);
-
-  void on_request(uint64 id, const td_api::getBotSimilarBotCount &request);
-
-  void on_request(uint64 id, const td_api::openBotSimilarBot &request);
-
-  void on_request(uint64 id, const td_api::getTopChats &request);
-
-  void on_request(uint64 id, const td_api::removeTopChat &request);
-
-  void on_request(uint64 id, const td_api::loadChats &request);
-
-  void on_request(uint64 id, const td_api::getChats &request);
-
-  void on_request(uint64 id, const td_api::loadSavedMessagesTopics &request);
-
-  void on_request(uint64 id, const td_api::getSavedMessagesTopicHistory &request);
-
-  void on_request(uint64 id, const td_api::getSavedMessagesTopicMessageByDate &request);
-
-  void on_request(uint64 id, const td_api::deleteSavedMessagesTopicHistory &request);
-
-  void on_request(uint64 id, const td_api::deleteSavedMessagesTopicMessagesByDate &request);
-
-  void on_request(uint64 id, const td_api::toggleSavedMessagesTopicIsPinned &request);
-
-  void on_request(uint64 id, const td_api::setPinnedSavedMessagesTopics &request);
-
-  void on_request(uint64 id, td_api::searchPublicChat &request);
-
-  void on_request(uint64 id, td_api::searchPublicChats &request);
-
-  void on_request(uint64 id, td_api::searchChats &request);
-
-  void on_request(uint64 id, td_api::searchChatsOnServer &request);
-
-  void on_request(uint64 id, td_api::searchRecentlyFoundChats &request);
-
-  void on_request(uint64 id, const td_api::addRecentlyFoundChat &request);
-
-  void on_request(uint64 id, const td_api::removeRecentlyFoundChat &request);
-
-  void on_request(uint64 id, const td_api::clearRecentlyFoundChats &request);
-
-  void on_request(uint64 id, const td_api::getRecentlyOpenedChats &request);
-
-  void on_request(uint64 id, const td_api::getGroupsInCommon &request);
-
-  void on_request(uint64 id, td_api::checkChatUsername &request);
-
-  void on_request(uint64 id, const td_api::getCreatedPublicChats &request);
-
-  void on_request(uint64 id, const td_api::checkCreatedPublicChatsLimit &request);
-
-  void on_request(uint64 id, const td_api::getSuitableDiscussionChats &request);
-
-  void on_request(uint64 id, const td_api::getInactiveSupergroupChats &request);
-
-  void on_request(uint64 id, const td_api::getSuitablePersonalChats &request);
-
-  void on_request(uint64 id, const td_api::openChat &request);
-
-  void on_request(uint64 id, const td_api::closeChat &request);
-
-  void on_request(uint64 id, const td_api::viewMessages &request);
-
-  void on_request(uint64 id, const td_api::openMessageContent &request);
-
-  void on_request(uint64 id, const td_api::clickAnimatedEmojiMessage &request);
-
-  void on_request(uint64 id, const td_api::getInternalLink &request);
-
-  void on_request(uint64 id, const td_api::getInternalLinkType &request);
-
-  void on_request(uint64 id, td_api::getExternalLinkInfo &request);
-
-  void on_request(uint64 id, td_api::getExternalLink &request);
-
-  void on_request(uint64 id, const td_api::getChatHistory &request);
-
-  void on_request(uint64 id, const td_api::deleteChatHistory &request);
-
-  void on_request(uint64 id, const td_api::deleteChat &request);
-
-  void on_request(uint64 id, const td_api::getMessageThreadHistory &request);
-
-  void on_request(uint64 id, const td_api::getChatMessageCalendar &request);
-
-  void on_request(uint64 id, td_api::searchChatMessages &request);
-
-  void on_request(uint64 id, td_api::searchSecretMessages &request);
-
-  void on_request(uint64 id, td_api::searchMessages &request);
-
-  void on_request(uint64 id, td_api::searchSavedMessages &request);
-
-  void on_request(uint64 id, const td_api::searchCallMessages &request);
-
-  void on_request(uint64 id, td_api::searchOutgoingDocumentMessages &request);
-
-  void on_request(uint64 id, td_api::searchPublicMessagesByTag &request);
-
-  void on_request(uint64 id, td_api::searchPublicStoriesByTag &request);
-
-  void on_request(uint64 id, td_api::searchPublicStoriesByLocation &request);
-
-  void on_request(uint64 id, td_api::searchPublicStoriesByVenue &request);
-
-  void on_request(uint64 id, td_api::getSearchedForTags &request);
-
-  void on_request(uint64 id, td_api::removeSearchedForTag &request);
-
-  void on_request(uint64 id, const td_api::clearSearchedForTags &request);
-
-  void on_request(uint64 id, const td_api::deleteAllCallMessages &request);
-
-  void on_request(uint64 id, const td_api::searchChatRecentLocationMessages &request);
-
-  void on_request(uint64 id, const td_api::getChatMessageByDate &request);
-
-  void on_request(uint64 id, const td_api::getChatSparseMessagePositions &request);
-
-  void on_request(uint64 id, const td_api::getChatMessageCount &request);
-
-  void on_request(uint64 id, const td_api::getChatMessagePosition &request);
-
-  void on_request(uint64 id, const td_api::getChatScheduledMessages &request);
-
-  void on_request(uint64 id, const td_api::getEmojiReaction &request);
-
-  void on_request(uint64 id, const td_api::getCustomEmojiReactionAnimations &request);
-
-  void on_request(uint64 id, const td_api::getMessageAvailableReactions &request);
-
-  void on_request(uint64 id, const td_api::clearRecentReactions &request);
-
-  void on_request(uint64 id, const td_api::addMessageReaction &request);
-
-  void on_request(uint64 id, const td_api::getChatAvailablePaidMessageReactionSenders &request);
-
-  void on_request(uint64 id, const td_api::addPendingPaidMessageReaction &request);
-
-  void on_request(uint64 id, const td_api::commitPendingPaidMessageReactions &request);
-
-  void on_request(uint64 id, const td_api::removePendingPaidMessageReactions &request);
-
-  void on_request(uint64 id, const td_api::setPaidMessageReactionType &request);
-
-  void on_request(uint64 id, const td_api::removeMessageReaction &request);
-
-  void on_request(uint64 id, const td_api::setMessageReactions &request);
-
-  void on_request(uint64 id, td_api::getMessageAddedReactions &request);
-
-  void on_request(uint64 id, const td_api::setDefaultReactionType &request);
-
-  void on_request(uint64 id, const td_api::getSavedMessagesTags &request);
-
-  void on_request(uint64 id, td_api::setSavedMessagesTagLabel &request);
-
-  void on_request(uint64 id, const td_api::getMessageEffect &request);
-
-  void on_request(uint64 id, td_api::getMessagePublicForwards &request);
-
-  void on_request(uint64 id, td_api::getStoryPublicForwards &request);
-
-  void on_request(uint64 id, const td_api::removeNotification &request);
-
-  void on_request(uint64 id, const td_api::removeNotificationGroup &request);
-
-  void on_request(uint64 id, const td_api::deleteMessages &request);
-
-  void on_request(uint64 id, const td_api::deleteChatMessagesBySender &request);
-
-  void on_request(uint64 id, const td_api::deleteChatMessagesByDate &request);
-
-  void on_request(uint64 id, const td_api::readAllChatMentions &request);
-
-  void on_request(uint64 id, const td_api::readAllMessageThreadMentions &request);
-
-  void on_request(uint64 id, const td_api::readAllChatReactions &request);
-
-  void on_request(uint64 id, const td_api::readAllMessageThreadReactions &request);
-
-  void on_request(uint64 id, const td_api::getChatAvailableMessageSenders &request);
-
-  void on_request(uint64 id, const td_api::setChatMessageSender &request);
-
-  void on_request(uint64 id, td_api::sendMessage &request);
-
-  void on_request(uint64 id, td_api::sendMessageAlbum &request);
-
-  void on_request(uint64 id, td_api::sendBotStartMessage &request);
-
-  void on_request(uint64 id, td_api::sendInlineQueryResultMessage &request);
-
-  void on_request(uint64 id, td_api::addLocalMessage &request);
-
-  void on_request(uint64 id, td_api::editMessageText &request);
-
-  void on_request(uint64 id, td_api::editMessageLiveLocation &request);
-
-  void on_request(uint64 id, td_api::editMessageMedia &request);
-
-  void on_request(uint64 id, td_api::editMessageCaption &request);
-
-  void on_request(uint64 id, td_api::editMessageReplyMarkup &request);
-
-  void on_request(uint64 id, td_api::editInlineMessageText &request);
-
-  void on_request(uint64 id, td_api::editInlineMessageLiveLocation &request);
-
-  void on_request(uint64 id, td_api::editInlineMessageMedia &request);
-
-  void on_request(uint64 id, td_api::editInlineMessageCaption &request);
-
-  void on_request(uint64 id, td_api::editInlineMessageReplyMarkup &request);
-
-  void on_request(uint64 id, td_api::editMessageSchedulingState &request);
-
-  void on_request(uint64 id, td_api::setMessageFactCheck &request);
-
-  void on_request(uint64 id, td_api::sendBusinessMessage &request);
-
-  void on_request(uint64 id, td_api::sendBusinessMessageAlbum &request);
-
-  void on_request(uint64 id, td_api::editBusinessMessageText &request);
-
-  void on_request(uint64 id, td_api::editBusinessMessageLiveLocation &request);
-
-  void on_request(uint64 id, td_api::editBusinessMessageMedia &request);
-
-  void on_request(uint64 id, td_api::editBusinessMessageCaption &request);
-
-  void on_request(uint64 id, td_api::editBusinessMessageReplyMarkup &request);
-
-  void on_request(uint64 id, td_api::stopBusinessPoll &request);
-
-  void on_request(uint64 id, td_api::setBusinessMessageIsPinned &request);
-
-  void on_request(uint64 id, td_api::readBusinessMessage &request);
-
-  void on_request(uint64 id, td_api::deleteBusinessMessages &request);
-
-  void on_request(uint64 id, td_api::editBusinessStory &request);
-
-  void on_request(uint64 id, td_api::deleteBusinessStory &request);
-
-  void on_request(uint64 id, td_api::setBusinessAccountName &request);
-
-  void on_request(uint64 id, td_api::setBusinessAccountBio &request);
-
-  void on_request(uint64 id, td_api::setBusinessAccountProfilePhoto &request);
-
-  void on_request(uint64 id, td_api::setBusinessAccountUsername &request);
-
-  void on_request(uint64 id, td_api::setBusinessAccountGiftSettings &request);
-
-  void on_request(uint64 id, td_api::getBusinessAccountStarAmount &request);
-
-  void on_request(uint64 id, td_api::transferBusinessAccountStars &request);
-
-  void on_request(uint64 id, const td_api::loadQuickReplyShortcuts &request);
-
-  void on_request(uint64 id, const td_api::setQuickReplyShortcutName &request);
-
-  void on_request(uint64 id, const td_api::deleteQuickReplyShortcut &request);
-
-  void on_request(uint64 id, const td_api::reorderQuickReplyShortcuts &request);
-
-  void on_request(uint64 id, const td_api::loadQuickReplyShortcutMessages &request);
-
-  void on_request(uint64 id, const td_api::deleteQuickReplyShortcutMessages &request);
-
-  void on_request(uint64 id, td_api::addQuickReplyShortcutMessage &request);
-
-  void on_request(uint64 id, td_api::addQuickReplyShortcutInlineQueryResultMessage &request);
-
-  void on_request(uint64 id, td_api::addQuickReplyShortcutMessageAlbum &request);
-
-  void on_request(uint64 id, td_api::readdQuickReplyShortcutMessages &request);
-
-  void on_request(uint64 id, td_api::editQuickReplyMessage &request);
-
-  void on_request(uint64 id, const td_api::getCurrentWeather &request);
-
-  void on_request(uint64 id, const td_api::getStory &request);
-
-  void on_request(uint64 id, const td_api::getChatsToSendStories &request);
-
-  void on_request(uint64 id, const td_api::canSendStory &request);
-
-  void on_request(uint64 id, td_api::sendStory &request);
-
-  void on_request(uint64 id, td_api::editStory &request);
-
-  void on_request(uint64 id, const td_api::editStoryCover &request);
-
-  void on_request(uint64 id, td_api::setStoryPrivacySettings &request);
-
-  void on_request(uint64 id, const td_api::toggleStoryIsPostedToChatPage &request);
-
-  void on_request(uint64 id, const td_api::deleteStory &request);
-
-  void on_request(uint64 id, const td_api::loadActiveStories &request);
-
-  void on_request(uint64 id, const td_api::setChatActiveStoriesList &request);
-
-  void on_request(uint64 id, const td_api::getForumTopicDefaultIcons &request);
-
-  void on_request(uint64 id, td_api::createForumTopic &request);
-
-  void on_request(uint64 id, td_api::editForumTopic &request);
-
-  void on_request(uint64 id, const td_api::getForumTopic &request);
-
-  void on_request(uint64 id, const td_api::getForumTopicLink &request);
-
-  void on_request(uint64 id, td_api::getForumTopics &request);
-
-  void on_request(uint64 id, const td_api::toggleForumTopicIsClosed &request);
-
-  void on_request(uint64 id, const td_api::toggleGeneralForumTopicIsHidden &request);
-
-  void on_request(uint64 id, const td_api::toggleForumTopicIsPinned &request);
-
-  void on_request(uint64 id, const td_api::setPinnedForumTopics &request);
-
-  void on_request(uint64 id, const td_api::deleteForumTopic &request);
-
-  void on_request(uint64 id, const td_api::setGameScore &request);
-
-  void on_request(uint64 id, td_api::setInlineGameScore &request);
-
-  void on_request(uint64 id, const td_api::getGameHighScores &request);
-
-  void on_request(uint64 id, td_api::getInlineGameHighScores &request);
-
-  void on_request(uint64 id, const td_api::deleteChatReplyMarkup &request);
-
-  void on_request(uint64 id, td_api::sendChatAction &request);
-
-  void on_request(uint64 id, td_api::forwardMessages &request);
-
-  void on_request(uint64 id, const td_api::sendQuickReplyShortcutMessages &request);
-
-  void on_request(uint64 id, td_api::resendMessages &request);
-
-  void on_request(uint64 id, td_api::getLinkPreview &request);
-
-  void on_request(uint64 id, td_api::getWebPageInstantView &request);
-
-  void on_request(uint64 id, const td_api::createPrivateChat &request);
-
-  void on_request(uint64 id, const td_api::createBasicGroupChat &request);
-
-  void on_request(uint64 id, const td_api::createSupergroupChat &request);
-
-  void on_request(uint64 id, const td_api::createSecretChat &request);
-
-  void on_request(uint64 id, td_api::createNewBasicGroupChat &request);
-
-  void on_request(uint64 id, td_api::createNewSupergroupChat &request);
-
-  void on_request(uint64 id, const td_api::createNewSecretChat &request);
-
-  void on_request(uint64 id, const td_api::createCall &request);
-
-  void on_request(uint64 id, const td_api::acceptCall &request);
-
-  void on_request(uint64 id, td_api::sendCallSignalingData &request);
-
-  void on_request(uint64 id, const td_api::discardCall &request);
-
-  void on_request(uint64 id, td_api::sendCallRating &request);
-
-  void on_request(uint64 id, td_api::sendCallDebugInformation &request);
-
-  void on_request(uint64 id, td_api::sendCallLog &request);
-
-  void on_request(uint64 id, const td_api::getVideoChatAvailableParticipants &request);
-
-  void on_request(uint64 id, const td_api::setVideoChatDefaultParticipant &request);
-
-  void on_request(uint64 id, td_api::createVideoChat &request);
-
-  void on_request(uint64 id, const td_api::createGroupCall &request);
-
-  void on_request(uint64 id, const td_api::getVideoChatRtmpUrl &request);
-
-  void on_request(uint64 id, const td_api::replaceVideoChatRtmpUrl &request);
-
-  void on_request(uint64 id, const td_api::getGroupCall &request);
-
-  void on_request(uint64 id, const td_api::startScheduledGroupCall &request);
-
-  void on_request(uint64 id, const td_api::toggleGroupCallEnabledStartNotification &request);
-
-  void on_request(uint64 id, td_api::joinGroupCall &request);
-
-  void on_request(uint64 id, td_api::startGroupCallScreenSharing &request);
-
-  void on_request(uint64 id, const td_api::endGroupCallScreenSharing &request);
-
-  void on_request(uint64 id, td_api::setGroupCallTitle &request);
-
-  void on_request(uint64 id, const td_api::toggleGroupCallMuteNewParticipants &request);
-
-  void on_request(uint64 id, const td_api::revokeGroupCallInviteLink &request);
-
-  void on_request(uint64 id, const td_api::inviteGroupCallParticipants &request);
-
-  void on_request(uint64 id, const td_api::getGroupCallInviteLink &request);
-
-  void on_request(uint64 id, td_api::startGroupCallRecording &request);
-
-  void on_request(uint64 id, const td_api::toggleGroupCallScreenSharingIsPaused &request);
-
-  void on_request(uint64 id, const td_api::endGroupCallRecording &request);
-
-  void on_request(uint64 id, const td_api::toggleGroupCallIsMyVideoPaused &request);
-
-  void on_request(uint64 id, const td_api::toggleGroupCallIsMyVideoEnabled &request);
-
-  void on_request(uint64 id, const td_api::setGroupCallParticipantIsSpeaking &request);
-
-  void on_request(uint64 id, const td_api::toggleGroupCallParticipantIsMuted &request);
-
-  void on_request(uint64 id, const td_api::setGroupCallParticipantVolumeLevel &request);
-
-  void on_request(uint64 id, const td_api::toggleGroupCallParticipantIsHandRaised &request);
-
-  void on_request(uint64 id, const td_api::loadGroupCallParticipants &request);
-
-  void on_request(uint64 id, const td_api::leaveGroupCall &request);
-
-  void on_request(uint64 id, const td_api::endGroupCall &request);
-
-  void on_request(uint64 id, const td_api::getGroupCallStreams &request);
-
-  void on_request(uint64 id, td_api::getGroupCallStreamSegment &request);
-
-  void on_request(uint64 id, const td_api::upgradeBasicGroupChatToSupergroupChat &request);
-
-  void on_request(uint64 id, const td_api::getChatListsToAddChat &request);
-
-  void on_request(uint64 id, const td_api::addChatToList &request);
-
-  void on_request(uint64 id, const td_api::getChatFolder &request);
-
-  void on_request(uint64 id, const td_api::getRecommendedChatFolders &request);
-
-  void on_request(uint64 id, td_api::createChatFolder &request);
-
-  void on_request(uint64 id, td_api::editChatFolder &request);
-
-  void on_request(uint64 id, const td_api::deleteChatFolder &request);
-
-  void on_request(uint64 id, const td_api::getChatFolderChatsToLeave &request);
-
-  void on_request(uint64 id, td_api::getChatFolderChatCount &request);
-
-  void on_request(uint64 id, const td_api::reorderChatFolders &request);
-
-  void on_request(uint64 id, const td_api::toggleChatFolderTags &request);
-
-  void on_request(uint64 id, const td_api::getChatsForChatFolderInviteLink &request);
-
-  void on_request(uint64 id, td_api::createChatFolderInviteLink &request);
-
-  void on_request(uint64 id, const td_api::getChatFolderInviteLinks &request);
-
-  void on_request(uint64 id, td_api::editChatFolderInviteLink &request);
-
-  void on_request(uint64 id, td_api::deleteChatFolderInviteLink &request);
-
-  void on_request(uint64 id, td_api::checkChatFolderInviteLink &request);
-
-  void on_request(uint64 id, td_api::addChatFolderByInviteLink &request);
-
-  void on_request(uint64 id, const td_api::getChatFolderNewChats &request);
-
-  void on_request(uint64 id, const td_api::processChatFolderNewChats &request);
-
-  void on_request(uint64 id, const td_api::getArchiveChatListSettings &request);
-
-  void on_request(uint64 id, td_api::setArchiveChatListSettings &request);
-
-  void on_request(uint64 id, const td_api::getReadDatePrivacySettings &request);
-
-  void on_request(uint64 id, td_api::setReadDatePrivacySettings &request);
-
-  void on_request(uint64 id, const td_api::getNewChatPrivacySettings &request);
-
-  void on_request(uint64 id, td_api::setNewChatPrivacySettings &request);
-
-  void on_request(uint64 id, const td_api::getPaidMessageRevenue &request);
-
-  void on_request(uint64 id, const td_api::allowUnpaidMessagesFromUser &request);
-
-  void on_request(uint64 id, const td_api::setChatPaidMessageStarCount &request);
-
-  void on_request(uint64 id, const td_api::canSendMessageToUser &request);
-
-  void on_request(uint64 id, td_api::setChatTitle &request);
-
-  void on_request(uint64 id, const td_api::setChatPhoto &request);
-
-  void on_request(uint64 id, const td_api::setChatAccentColor &request);
-
-  void on_request(uint64 id, const td_api::setChatProfileAccentColor &request);
-
-  void on_request(uint64 id, const td_api::setChatMessageAutoDeleteTime &request);
-
-  void on_request(uint64 id, const td_api::setChatEmojiStatus &request);
-
-  void on_request(uint64 id, const td_api::setChatPermissions &request);
-
-  void on_request(uint64 id, const td_api::setChatBackground &request);
-
-  void on_request(uint64 id, const td_api::deleteChatBackground &request);
-
-  void on_request(uint64 id, td_api::setChatTheme &request);
-
-  void on_request(uint64 id, td_api::setChatDraftMessage &request);
-
-  void on_request(uint64 id, const td_api::toggleChatHasProtectedContent &request);
-
-  void on_request(uint64 id, const td_api::toggleChatIsPinned &request);
-
-  void on_request(uint64 id, const td_api::toggleChatViewAsTopics &request);
-
-  void on_request(uint64 id, const td_api::toggleChatIsTranslatable &request);
-
-  void on_request(uint64 id, const td_api::toggleChatIsMarkedAsUnread &request);
-
-  void on_request(uint64 id, const td_api::setMessageSenderBlockList &request);
-
-  void on_request(uint64 id, const td_api::toggleChatDefaultDisableNotification &request);
-
-  void on_request(uint64 id, const td_api::setPinnedChats &request);
-
-  void on_request(uint64 id, const td_api::readChatList &request);
-
-  void on_request(uint64 id, const td_api::getStoryNotificationSettingsExceptions &request);
-
-  void on_request(uint64 id, const td_api::getChatActiveStories &request);
-
-  void on_request(uint64 id, const td_api::getChatPostedToChatPageStories &request);
-
-  void on_request(uint64 id, const td_api::getChatArchivedStories &request);
-
-  void on_request(uint64 id, const td_api::setChatPinnedStories &request);
-
-  void on_request(uint64 id, const td_api::openStory &request);
-
-  void on_request(uint64 id, const td_api::closeStory &request);
-
-  void on_request(uint64 id, const td_api::getStoryAvailableReactions &request);
-
-  void on_request(uint64 id, const td_api::setStoryReaction &request);
-
-  void on_request(uint64 id, td_api::getStoryInteractions &request);
-
-  void on_request(uint64 id, td_api::getChatStoryInteractions &request);
-
-  void on_request(uint64 id, td_api::reportStory &request);
-
-  void on_request(uint64 id, const td_api::activateStoryStealthMode &request);
-
-  void on_request(uint64 id, const td_api::getChatBoostLevelFeatures &request);
-
-  void on_request(uint64 id, const td_api::getChatBoostFeatures &request);
-
-  void on_request(uint64 id, const td_api::getAvailableChatBoostSlots &request);
-
-  void on_request(uint64 id, const td_api::getChatBoostStatus &request);
-
-  void on_request(uint64 id, td_api::boostChat &request);
-
-  void on_request(uint64 id, const td_api::getChatBoostLink &request);
-
-  void on_request(uint64 id, td_api::getChatBoostLinkInfo &request);
-
-  void on_request(uint64 id, td_api::getChatBoosts &request);
-
-  void on_request(uint64 id, const td_api::getUserChatBoosts &request);
-
-  void on_request(uint64 id, const td_api::getAttachmentMenuBot &request);
-
-  void on_request(uint64 id, const td_api::toggleBotIsAddedToAttachmentMenu &request);
-
-  void on_request(uint64 id, td_api::setChatAvailableReactions &request);
-
-  void on_request(uint64 id, td_api::setChatClientData &request);
-
-  void on_request(uint64 id, td_api::setChatDescription &request);
-
-  void on_request(uint64 id, const td_api::setChatDiscussionGroup &request);
-
-  void on_request(uint64 id, td_api::setChatLocation &request);
-
-  void on_request(uint64 id, const td_api::setChatSlowModeDelay &request);
-
-  void on_request(uint64 id, const td_api::pinChatMessage &request);
-
-  void on_request(uint64 id, const td_api::unpinChatMessage &request);
-
-  void on_request(uint64 id, const td_api::unpinAllChatMessages &request);
-
-  void on_request(uint64 id, const td_api::unpinAllMessageThreadMessages &request);
-
-  void on_request(uint64 id, const td_api::joinChat &request);
-
-  void on_request(uint64 id, const td_api::leaveChat &request);
-
-  void on_request(uint64 id, const td_api::addChatMember &request);
-
-  void on_request(uint64 id, const td_api::addChatMembers &request);
-
-  void on_request(uint64 id, td_api::setChatMemberStatus &request);
-
-  void on_request(uint64 id, const td_api::banChatMember &request);
-
-  void on_request(uint64 id, const td_api::canTransferOwnership &request);
-
-  void on_request(uint64 id, td_api::transferChatOwnership &request);
-
-  void on_request(uint64 id, const td_api::getChatMember &request);
-
-  void on_request(uint64 id, td_api::searchChatMembers &request);
-
-  void on_request(uint64 id, const td_api::getChatAdministrators &request);
-
-  void on_request(uint64 id, const td_api::replacePrimaryChatInviteLink &request);
-
-  void on_request(uint64 id, td_api::createChatInviteLink &request);
-
-  void on_request(uint64 id, td_api::createChatSubscriptionInviteLink &request);
-
-  void on_request(uint64 id, td_api::editChatInviteLink &request);
-
-  void on_request(uint64 id, td_api::editChatSubscriptionInviteLink &request);
-
-  void on_request(uint64 id, td_api::getChatInviteLink &request);
-
-  void on_request(uint64 id, const td_api::getChatInviteLinkCounts &request);
-
-  void on_request(uint64 id, td_api::getChatInviteLinks &request);
-
-  void on_request(uint64 id, td_api::getChatInviteLinkMembers &request);
-
-  void on_request(uint64 id, td_api::getChatJoinRequests &request);
-
-  void on_request(uint64 id, const td_api::processChatJoinRequest &request);
-
-  void on_request(uint64 id, td_api::processChatJoinRequests &request);
-
-  void on_request(uint64 id, td_api::revokeChatInviteLink &request);
-
-  void on_request(uint64 id, td_api::deleteRevokedChatInviteLink &request);
-
-  void on_request(uint64 id, const td_api::deleteAllRevokedChatInviteLinks &request);
-
-  void on_request(uint64 id, td_api::checkChatInviteLink &request);
-
-  void on_request(uint64 id, td_api::joinChatByInviteLink &request);
-
-  void on_request(uint64 id, td_api::getChatEventLog &request);
-
-  void on_request(uint64 id, const td_api::getTimeZones &request);
-
-  void on_request(uint64 id, const td_api::clearAllDraftMessages &request);
-
-  void on_request(uint64 id, const td_api::downloadFile &request);
-
-  void on_request(uint64 id, const td_api::getFileDownloadedPrefixSize &request);
-
-  void on_request(uint64 id, const td_api::cancelDownloadFile &request);
-
-  void on_request(uint64 id, const td_api::getSuggestedFileName &request);
-
-  void on_request(uint64 id, const td_api::preliminaryUploadFile &request);
-
-  void on_request(uint64 id, const td_api::cancelPreliminaryUploadFile &request);
-
-  void on_request(uint64 id, td_api::writeGeneratedFilePart &request);
-
-  void on_request(uint64 id, const td_api::setFileGenerationProgress &request);
-
-  void on_request(uint64 id, td_api::finishFileGeneration &request);
-
-  void on_request(uint64 id, const td_api::readFilePart &request);
-
-  void on_request(uint64 id, const td_api::deleteFile &request);
-
-  void on_request(uint64 id, const td_api::addFileToDownloads &request);
-
-  void on_request(uint64 id, const td_api::toggleDownloadIsPaused &request);
-
-  void on_request(uint64 id, const td_api::toggleAllDownloadsArePaused &request);
-
-  void on_request(uint64 id, const td_api::removeFileFromDownloads &request);
-
-  void on_request(uint64 id, const td_api::removeAllFilesFromDownloads &request);
-
-  void on_request(uint64 id, td_api::searchFileDownloads &request);
-
-  void on_request(uint64 id, td_api::setApplicationVerificationToken &request);
-
-  void on_request(uint64 id, td_api::getMessageFileType &request);
-
-  void on_request(uint64 id, const td_api::getMessageImportConfirmationText &request);
-
-  void on_request(uint64 id, const td_api::importMessages &request);
-
-  void on_request(uint64 id, const td_api::blockMessageSenderFromReplies &request);
-
-  void on_request(uint64 id, const td_api::getBlockedMessageSenders &request);
-
-  void on_request(uint64 id, td_api::addContact &request);
-
-  void on_request(uint64 id, td_api::importContacts &request);
-
-  void on_request(uint64 id, const td_api::getContacts &request);
-
-  void on_request(uint64 id, td_api::searchContacts &request);
-
-  void on_request(uint64 id, const td_api::removeContacts &request);
-
-  void on_request(uint64 id, const td_api::getImportedContactCount &request);
-
-  void on_request(uint64 id, td_api::changeImportedContacts &request);
-
-  void on_request(uint64 id, const td_api::clearImportedContacts &request);
-
-  void on_request(uint64 id, const td_api::getCloseFriends &request);
-
-  void on_request(uint64 id, const td_api::setCloseFriends &request);
-
-  void on_request(uint64 id, const td_api::setUserPersonalProfilePhoto &request);
-
-  void on_request(uint64 id, const td_api::suggestUserProfilePhoto &request);
-
-  void on_request(uint64 id, const td_api::toggleBotCanManageEmojiStatus &request);
-
-  void on_request(uint64 id, const td_api::setUserEmojiStatus &request);
-
-  void on_request(uint64 id, td_api::searchUserByPhoneNumber &request);
-
-  void on_request(uint64 id, const td_api::sharePhoneNumber &request);
-
-  void on_request(uint64 id, const td_api::getRecentInlineBots &request);
-
-  void on_request(uint64 id, const td_api::getOwnedBots &request);
-
-  void on_request(uint64 id, td_api::setName &request);
-
-  void on_request(uint64 id, td_api::setBio &request);
-
-  void on_request(uint64 id, td_api::setUsername &request);
-
-  void on_request(uint64 id, td_api::toggleUsernameIsActive &request);
-
-  void on_request(uint64 id, td_api::reorderActiveUsernames &request);
-
-  void on_request(uint64 id, td_api::setBirthdate &request);
-
-  void on_request(uint64 id, const td_api::setPersonalChat &request);
-
-  void on_request(uint64 id, const td_api::setEmojiStatus &request);
-
-  void on_request(uint64 id, const td_api::toggleHasSponsoredMessagesEnabled &request);
-
-  void on_request(uint64 id, const td_api::getThemedEmojiStatuses &request);
-
-  void on_request(uint64 id, const td_api::getThemedChatEmojiStatuses &request);
-
-  void on_request(uint64 id, const td_api::getDefaultEmojiStatuses &request);
-
-  void on_request(uint64 id, const td_api::getDefaultChatEmojiStatuses &request);
-
-  void on_request(uint64 id, const td_api::getRecentEmojiStatuses &request);
-
-  void on_request(uint64 id, const td_api::getUpgradedGiftEmojiStatuses &request);
-
-  void on_request(uint64 id, const td_api::clearRecentEmojiStatuses &request);
-
-  void on_request(uint64 id, td_api::setCommands &request);
-
-  void on_request(uint64 id, td_api::deleteCommands &request);
-
-  void on_request(uint64 id, td_api::getCommands &request);
-
-  void on_request(uint64 id, td_api::setMenuButton &request);
-
-  void on_request(uint64 id, const td_api::getMenuButton &request);
-
-  void on_request(uint64 id, const td_api::setDefaultGroupAdministratorRights &request);
-
-  void on_request(uint64 id, const td_api::setDefaultChannelAdministratorRights &request);
-
-  void on_request(uint64 id, const td_api::canBotSendMessages &request);
-
-  void on_request(uint64 id, const td_api::allowBotToSendMessages &request);
-
-  void on_request(uint64 id, td_api::sendWebAppCustomRequest &request);
-
-  void on_request(uint64 id, const td_api::getBotMediaPreviews &request);
-
-  void on_request(uint64 id, const td_api::getBotMediaPreviewInfo &request);
-
-  void on_request(uint64 id, td_api::addBotMediaPreview &request);
-
-  void on_request(uint64 id, td_api::editBotMediaPreview &request);
-
-  void on_request(uint64 id, const td_api::reorderBotMediaPreviews &request);
-
-  void on_request(uint64 id, const td_api::deleteBotMediaPreviews &request);
-
-  void on_request(uint64 id, td_api::setBotName &request);
-
-  void on_request(uint64 id, const td_api::getBotName &request);
-
-  void on_request(uint64 id, const td_api::setBotProfilePhoto &request);
-
-  void on_request(uint64 id, td_api::toggleBotUsernameIsActive &request);
-
-  void on_request(uint64 id, td_api::reorderBotActiveUsernames &request);
-
-  void on_request(uint64 id, td_api::setBotInfoDescription &request);
-
-  void on_request(uint64 id, const td_api::getBotInfoDescription &request);
-
-  void on_request(uint64 id, td_api::setBotInfoShortDescription &request);
-
-  void on_request(uint64 id, const td_api::getBotInfoShortDescription &request);
-
-  void on_request(uint64 id, td_api::setMessageSenderBotVerification &request);
-
-  void on_request(uint64 id, const td_api::removeMessageSenderBotVerification &request);
-
-  void on_request(uint64 id, td_api::setBusinessLocation &request);
-
-  void on_request(uint64 id, td_api::setBusinessOpeningHours &request);
-
-  void on_request(uint64 id, td_api::setBusinessGreetingMessageSettings &request);
-
-  void on_request(uint64 id, td_api::setBusinessAwayMessageSettings &request);
-
-  void on_request(uint64 id, td_api::setBusinessStartPage &request);
-
-  void on_request(uint64 id, const td_api::setProfilePhoto &request);
-
-  void on_request(uint64 id, const td_api::deleteProfilePhoto &request);
-
-  void on_request(uint64 id, const td_api::getUserProfilePhotos &request);
-
-  void on_request(uint64 id, const td_api::setAccentColor &request);
-
-  void on_request(uint64 id, const td_api::setProfileAccentColor &request);
-
-  void on_request(uint64 id, const td_api::getBusinessConnectedBot &request);
-
-  void on_request(uint64 id, td_api::setBusinessConnectedBot &request);
-
-  void on_request(uint64 id, const td_api::deleteBusinessConnectedBot &request);
-
-  void on_request(uint64 id, const td_api::toggleBusinessConnectedBotChatIsPaused &request);
-
-  void on_request(uint64 id, const td_api::removeBusinessConnectedBotFromChat &request);
-
-  void on_request(uint64 id, const td_api::getBusinessChatLinks &request);
-
-  void on_request(uint64 id, td_api::createBusinessChatLink &request);
-
-  void on_request(uint64 id, td_api::editBusinessChatLink &request);
-
-  void on_request(uint64 id, td_api::deleteBusinessChatLink &request);
-
-  void on_request(uint64 id, td_api::getBusinessChatLinkInfo &request);
-
-  void on_request(uint64 id, td_api::setSupergroupUsername &request);
-
-  void on_request(uint64 id, td_api::toggleSupergroupUsernameIsActive &request);
-
-  void on_request(uint64 id, const td_api::disableAllSupergroupUsernames &request);
-
-  void on_request(uint64 id, td_api::reorderSupergroupActiveUsernames &request);
-
-  void on_request(uint64 id, const td_api::setSupergroupStickerSet &request);
-
-  void on_request(uint64 id, const td_api::setSupergroupCustomEmojiStickerSet &request);
-
-  void on_request(uint64 id, const td_api::setSupergroupUnrestrictBoostCount &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupSignMessages &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupJoinToSendMessages &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupJoinByRequest &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupIsAllHistoryAvailable &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupCanHaveSponsoredMessages &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupHasHiddenMembers &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupHasAggressiveAntiSpamEnabled &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupIsForum &request);
-
-  void on_request(uint64 id, const td_api::toggleSupergroupIsBroadcastGroup &request);
-
-  void on_request(uint64 id, const td_api::reportSupergroupSpam &request);
-
-  void on_request(uint64 id, const td_api::reportSupergroupAntiSpamFalsePositive &request);
-
-  void on_request(uint64 id, td_api::getSupergroupMembers &request);
-
-  void on_request(uint64 id, const td_api::closeSecretChat &request);
-
-  void on_request(uint64 id, const td_api::getStickerOutline &request);
-
-  void on_request(uint64 id, td_api::getStickers &request);
-
-  void on_request(uint64 id, td_api::getAllStickerEmojis &request);
-
-  void on_request(uint64 id, td_api::searchStickers &request);
-
-  void on_request(uint64 id, const td_api::getGreetingStickers &request);
-
-  void on_request(uint64 id, const td_api::getPremiumStickers &request);
-
-  void on_request(uint64 id, const td_api::getInstalledStickerSets &request);
-
-  void on_request(uint64 id, const td_api::getArchivedStickerSets &request);
-
-  void on_request(uint64 id, const td_api::getTrendingStickerSets &request);
-
-  void on_request(uint64 id, const td_api::getAttachedStickerSets &request);
-
-  void on_request(uint64 id, const td_api::getStickerSet &request);
-
-  void on_request(uint64 id, const td_api::getStickerSetName &request);
-
-  void on_request(uint64 id, td_api::searchStickerSet &request);
-
-  void on_request(uint64 id, td_api::searchInstalledStickerSets &request);
-
-  void on_request(uint64 id, td_api::searchStickerSets &request);
-
-  void on_request(uint64 id, const td_api::changeStickerSet &request);
-
-  void on_request(uint64 id, const td_api::viewTrendingStickerSets &request);
-
-  void on_request(uint64 id, const td_api::reorderInstalledStickerSets &request);
-
-  void on_request(uint64 id, td_api::uploadStickerFile &request);
-
-  void on_request(uint64 id, td_api::getSuggestedStickerSetName &request);
-
-  void on_request(uint64 id, td_api::checkStickerSetName &request);
-
-  void on_request(uint64 id, td_api::createNewStickerSet &request);
-
-  void on_request(uint64 id, td_api::addStickerToSet &request);
-
-  void on_request(uint64 id, td_api::replaceStickerInSet &request);
-
-  void on_request(uint64 id, td_api::setStickerSetThumbnail &request);
-
-  void on_request(uint64 id, td_api::setCustomEmojiStickerSetThumbnail &request);
-
-  void on_request(uint64 id, td_api::setStickerSetTitle &request);
-
-  void on_request(uint64 id, td_api::deleteStickerSet &request);
-
-  void on_request(uint64 id, const td_api::setStickerPositionInSet &request);
-
-  void on_request(uint64 id, const td_api::removeStickerFromSet &request);
-
-  void on_request(uint64 id, td_api::setStickerEmojis &request);
-
-  void on_request(uint64 id, td_api::setStickerKeywords &request);
-
-  void on_request(uint64 id, td_api::setStickerMaskPosition &request);
-
-  void on_request(uint64 id, const td_api::getOwnedStickerSets &request);
-
-  void on_request(uint64 id, const td_api::getRecentStickers &request);
-
-  void on_request(uint64 id, td_api::addRecentSticker &request);
-
-  void on_request(uint64 id, td_api::removeRecentSticker &request);
-
-  void on_request(uint64 id, const td_api::clearRecentStickers &request);
-
-  void on_request(uint64 id, const td_api::getSavedAnimations &request);
-
-  void on_request(uint64 id, td_api::addSavedAnimation &request);
-
-  void on_request(uint64 id, td_api::removeSavedAnimation &request);
-
-  void on_request(uint64 id, td_api::getStickerEmojis &request);
-
-  void on_request(uint64 id, td_api::searchEmojis &request);
-
-  void on_request(uint64 id, td_api::getKeywordEmojis &request);
-
-  void on_request(uint64 id, const td_api::getEmojiCategories &request);
-
-  void on_request(uint64 id, td_api::getAnimatedEmoji &request);
-
-  void on_request(uint64 id, td_api::getEmojiSuggestionsUrl &request);
-
-  void on_request(uint64 id, const td_api::getCustomEmojiStickers &request);
-
-  void on_request(uint64 id, const td_api::getDefaultChatPhotoCustomEmojiStickers &request);
-
-  void on_request(uint64 id, const td_api::getDefaultProfilePhotoCustomEmojiStickers &request);
-
-  void on_request(uint64 id, const td_api::getDefaultBackgroundCustomEmojiStickers &request);
-
-  void on_request(uint64 id, const td_api::getDisallowedChatEmojiStatuses &request);
-
-  void on_request(uint64 id, const td_api::getFavoriteStickers &request);
-
-  void on_request(uint64 id, td_api::addFavoriteSticker &request);
-
-  void on_request(uint64 id, td_api::removeFavoriteSticker &request);
-
-  void on_request(uint64 id, const td_api::getSavedNotificationSound &request);
-
-  void on_request(uint64 id, const td_api::getSavedNotificationSounds &request);
-
-  void on_request(uint64 id, td_api::addSavedNotificationSound &request);
-
-  void on_request(uint64 id, const td_api::removeSavedNotificationSound &request);
-
-  void on_request(uint64 id, const td_api::getChatNotificationSettingsExceptions &request);
-
-  void on_request(uint64 id, const td_api::getScopeNotificationSettings &request);
-
-  void on_request(uint64 id, td_api::setChatNotificationSettings &request);
-
-  void on_request(uint64 id, td_api::setForumTopicNotificationSettings &request);
-
-  void on_request(uint64 id, td_api::setScopeNotificationSettings &request);
-
-  void on_request(uint64 id, td_api::setReactionNotificationSettings &request);
-
-  void on_request(uint64 id, const td_api::resetAllNotificationSettings &request);
-
-  void on_request(uint64 id, const td_api::removeChatActionBar &request);
-
-  void on_request(uint64 id, td_api::reportChat &request);
-
-  void on_request(uint64 id, td_api::reportChatPhoto &request);
-
-  void on_request(uint64 id, const td_api::reportMessageReactions &request);
-
-  void on_request(uint64 id, const td_api::getChatStatistics &request);
-
-  void on_request(uint64 id, const td_api::getChatRevenueStatistics &request);
-
-  void on_request(uint64 id, const td_api::getChatRevenueWithdrawalUrl &request);
-
-  void on_request(uint64 id, const td_api::getChatRevenueTransactions &request);
-
-  void on_request(uint64 id, const td_api::getStarRevenueStatistics &request);
-
-  void on_request(uint64 id, const td_api::getStarWithdrawalUrl &request);
-
-  void on_request(uint64 id, const td_api::getStarAdAccountUrl &request);
-
-  void on_request(uint64 id, const td_api::getMessageStatistics &request);
-
-  void on_request(uint64 id, const td_api::getStoryStatistics &request);
-
-  void on_request(uint64 id, td_api::getStatisticalGraph &request);
-
-  void on_request(uint64 id, const td_api::getMapThumbnailFile &request);
-
-  void on_request(uint64 id, const td_api::getLocalizationTargetInfo &request);
-
-  void on_request(uint64 id, td_api::getLanguagePackInfo &request);
-
-  void on_request(uint64 id, td_api::getLanguagePackStrings &request);
-
-  void on_request(uint64 id, td_api::synchronizeLanguagePack &request);
-
-  void on_request(uint64 id, td_api::addCustomServerLanguagePack &request);
-
-  void on_request(uint64 id, td_api::setCustomLanguagePack &request);
-
-  void on_request(uint64 id, td_api::editCustomLanguagePackInfo &request);
-
-  void on_request(uint64 id, td_api::setCustomLanguagePackString &request);
-
-  void on_request(uint64 id, td_api::deleteLanguagePack &request);
-
-  void on_request(uint64 id, td_api::getOption &request);
-
-  void on_request(uint64 id, td_api::setOption &request);
-
-  void on_request(uint64 id, td_api::setPollAnswer &request);
-
-  void on_request(uint64 id, const td_api::getPollVoters &request);
-
-  void on_request(uint64 id, td_api::stopPoll &request);
-
-  void on_request(uint64 id, const td_api::hideSuggestedAction &request);
-
-  void on_request(uint64 id, const td_api::hideContactCloseBirthdays &request);
-
-  void on_request(uint64 id, td_api::getBusinessConnection &request);
-
-  void on_request(uint64 id, const td_api::getLoginUrlInfo &request);
-
-  void on_request(uint64 id, const td_api::getLoginUrl &request);
-
-  void on_request(uint64 id, const td_api::shareUsersWithBot &request);
-
-  void on_request(uint64 id, const td_api::shareChatWithBot &request);
-
-  void on_request(uint64 id, td_api::getInlineQueryResults &request);
-
-  void on_request(uint64 id, td_api::answerInlineQuery &request);
-
-  void on_request(uint64 id, td_api::savePreparedInlineMessage &request);
-
-  void on_request(uint64 id, td_api::getPreparedInlineMessage &request);
-
-  void on_request(uint64 id, td_api::getGrossingWebAppBots &request);
-
-  void on_request(uint64 id, td_api::searchWebApp &request);
-
-  void on_request(uint64 id, const td_api::getWebAppPlaceholder &request);
-
-  void on_request(uint64 id, td_api::getWebAppLinkUrl &request);
-
-  void on_request(uint64 id, td_api::getMainWebApp &request);
-
-  void on_request(uint64 id, td_api::getWebAppUrl &request);
-
-  void on_request(uint64 id, td_api::sendWebAppData &request);
-
-  void on_request(uint64 id, td_api::openWebApp &request);
-
-  void on_request(uint64 id, const td_api::closeWebApp &request);
-
-  void on_request(uint64 id, td_api::answerWebAppQuery &request);
-
-  void on_request(uint64 id, td_api::checkWebAppFileDownload &request);
-
-  void on_request(uint64 id, td_api::getCallbackQueryAnswer &request);
-
-  void on_request(uint64 id, td_api::answerCallbackQuery &request);
-
-  void on_request(uint64 id, td_api::answerShippingQuery &request);
-
-  void on_request(uint64 id, td_api::answerPreCheckoutQuery &request);
-
-  void on_request(uint64 id, td_api::getBankCardInfo &request);
-
-  void on_request(uint64 id, td_api::getPaymentForm &request);
-
-  void on_request(uint64 id, td_api::validateOrderInfo &request);
-
-  void on_request(uint64 id, td_api::sendPaymentForm &request);
-
-  void on_request(uint64 id, const td_api::getPaymentReceipt &request);
-
-  void on_request(uint64 id, const td_api::getSavedOrderInfo &request);
-
-  void on_request(uint64 id, const td_api::deleteSavedOrderInfo &request);
-
-  void on_request(uint64 id, const td_api::deleteSavedCredentials &request);
-
-  void on_request(uint64 id, td_api::setGiftSettings &request);
-
-  void on_request(uint64 id, const td_api::getAvailableGifts &request);
-
-  void on_request(uint64 id, td_api::sendGift &request);
-
-  void on_request(uint64 id, td_api::sellGift &request);
-
-  void on_request(uint64 id, const td_api::toggleGiftIsSaved &request);
-
-  void on_request(uint64 id, const td_api::setPinnedGifts &request);
-
-  void on_request(uint64 id, const td_api::toggleChatGiftNotifications &request);
-
-  void on_request(uint64 id, const td_api::getGiftUpgradePreview &request);
-
-  void on_request(uint64 id, td_api::upgradeGift &request);
-
-  void on_request(uint64 id, td_api::transferGift &request);
-
-  void on_request(uint64 id, td_api::getReceivedGifts &request);
-
-  void on_request(uint64 id, const td_api::getReceivedGift &request);
-
-  void on_request(uint64 id, td_api::getUpgradedGift &request);
-
-  void on_request(uint64 id, const td_api::getUpgradedGiftWithdrawalUrl &request);
-
-  void on_request(uint64 id, td_api::createInvoiceLink &request);
-
-  void on_request(uint64 id, td_api::refundStarPayment &request);
-
-  void on_request(uint64 id, td_api::getPassportElement &request);
-
-  void on_request(uint64 id, td_api::getAllPassportElements &request);
-
-  void on_request(uint64 id, td_api::setPassportElement &request);
-
-  void on_request(uint64 id, const td_api::deletePassportElement &request);
-
-  void on_request(uint64 id, td_api::setPassportElementErrors &request);
-
-  void on_request(uint64 id, td_api::getPreferredCountryLanguage &request);
-
-  void on_request(uint64 id, td_api::sendEmailAddressVerificationCode &request);
-
-  void on_request(uint64 id, const td_api::resendEmailAddressVerificationCode &request);
-
-  void on_request(uint64 id, td_api::checkEmailAddressVerificationCode &request);
-
-  void on_request(uint64 id, td_api::getPassportAuthorizationForm &request);
-
-  void on_request(uint64 id, td_api::getPassportAuthorizationFormAvailableElements &request);
-
-  void on_request(uint64 id, td_api::sendPassportAuthorizationForm &request);
-
-  void on_request(uint64 id, const td_api::getSupportUser &request);
-
-  void on_request(uint64 id, const td_api::getInstalledBackgrounds &request);
-
-  void on_request(uint64 id, td_api::getBackgroundUrl &request);
-
-  void on_request(uint64 id, td_api::searchBackground &request);
-
-  void on_request(uint64 id, const td_api::setDefaultBackground &request);
-
-  void on_request(uint64 id, const td_api::deleteDefaultBackground &request);
-
-  void on_request(uint64 id, const td_api::removeInstalledBackground &request);
-
-  void on_request(uint64 id, const td_api::resetInstalledBackgrounds &request);
-
-  void on_request(uint64 id, td_api::getRecentlyVisitedTMeUrls &request);
-
-  void on_request(uint64 id, td_api::setBotUpdatesStatus &request);
-
-  void on_request(uint64 id, td_api::sendCustomRequest &request);
-
-  void on_request(uint64 id, td_api::answerCustomQuery &request);
-
-  void on_request(uint64 id, const td_api::setAlarm &request);
-
-  void on_request(uint64 id, td_api::searchHashtags &request);
-
-  void on_request(uint64 id, td_api::removeRecentHashtag &request);
-
-  void on_request(uint64 id, const td_api::getPremiumLimit &request);
-
-  void on_request(uint64 id, const td_api::getPremiumFeatures &request);
-
-  void on_request(uint64 id, const td_api::getPremiumStickerExamples &request);
-
-  void on_request(uint64 id, const td_api::getPremiumInfoSticker &request);
-
-  void on_request(uint64 id, const td_api::viewPremiumFeature &request);
-
-  void on_request(uint64 id, const td_api::clickPremiumSubscriptionButton &request);
-
-  void on_request(uint64 id, const td_api::getPremiumState &request);
-
-  void on_request(uint64 id, const td_api::getPremiumGiftPaymentOptions &request);
-
-  void on_request(uint64 id, const td_api::getPremiumGiveawayPaymentOptions &request);
-
-  void on_request(uint64 id, td_api::checkPremiumGiftCode &request);
-
-  void on_request(uint64 id, td_api::applyPremiumGiftCode &request);
-
-  void on_request(uint64 id, td_api::giftPremiumWithStars &request);
-
-  void on_request(uint64 id, td_api::launchPrepaidGiveaway &request);
-
-  void on_request(uint64 id, const td_api::getGiveawayInfo &request);
-
-  void on_request(uint64 id, const td_api::getStarPaymentOptions &request);
-
-  void on_request(uint64 id, const td_api::getStarGiftPaymentOptions &request);
-
-  void on_request(uint64 id, const td_api::getStarGiveawayPaymentOptions &request);
-
-  void on_request(uint64 id, td_api::getStarTransactions &request);
-
-  void on_request(uint64 id, td_api::getStarSubscriptions &request);
-
-  void on_request(uint64 id, td_api::editStarSubscription &request);
-
-  void on_request(uint64 id, td_api::editUserStarSubscription &request);
-
-  void on_request(uint64 id, td_api::reuseStarSubscription &request);
-
-  void on_request(uint64 id, const td_api::setChatAffiliateProgram &request);
-
-  void on_request(uint64 id, td_api::searchChatAffiliateProgram &request);
-
-  void on_request(uint64 id, td_api::searchAffiliatePrograms &request);
-
-  void on_request(uint64 id, const td_api::connectAffiliateProgram &request);
-
-  void on_request(uint64 id, td_api::disconnectAffiliateProgram &request);
-
-  void on_request(uint64 id, const td_api::getConnectedAffiliateProgram &request);
-
-  void on_request(uint64 id, td_api::getConnectedAffiliatePrograms &request);
-
-  void on_request(uint64 id, td_api::canPurchaseFromStore &request);
-
-  void on_request(uint64 id, td_api::assignAppStoreTransaction &request);
-
-  void on_request(uint64 id, td_api::assignGooglePlayTransaction &request);
-
-  void on_request(uint64 id, const td_api::getBusinessFeatures &request);
-
-  void on_request(uint64 id, td_api::acceptTermsOfService &request);
-
-  void on_request(uint64 id, const td_api::getCountries &request);
-
-  void on_request(uint64 id, const td_api::getCountryCode &request);
-
-  void on_request(uint64 id, const td_api::getPhoneNumberInfo &request);
-
-  void on_request(uint64 id, td_api::getCollectibleItemInfo &request);
-
-  void on_request(uint64 id, const td_api::getApplicationDownloadLink &request);
-
-  void on_request(uint64 id, td_api::getDeepLinkInfo &request);
-
-  void on_request(uint64 id, const td_api::getApplicationConfig &request);
-
-  void on_request(uint64 id, td_api::saveApplicationLogEvent &request);
-
-  void on_request(uint64 id, td_api::addProxy &request);
-
-  void on_request(uint64 id, td_api::editProxy &request);
-
-  void on_request(uint64 id, const td_api::enableProxy &request);
-
-  void on_request(uint64 id, const td_api::disableProxy &request);
-
-  void on_request(uint64 id, const td_api::removeProxy &request);
-
-  void on_request(uint64 id, const td_api::getProxies &request);
-
-  void on_request(uint64 id, const td_api::getProxyLink &request);
-
-  void on_request(uint64 id, const td_api::pingProxy &request);
-
-  void on_request(uint64 id, const td_api::getUserSupportInfo &request);
-
-  void on_request(uint64 id, td_api::setUserSupportInfo &request);
-
-  void on_request(uint64 id, const td_api::getSupportName &request);
-
-  void on_request(uint64 id, const td_api::searchQuote &request);
-
-  void on_request(uint64 id, const td_api::getTextEntities &request);
-
-  void on_request(uint64 id, const td_api::parseTextEntities &request);
-
-  void on_request(uint64 id, const td_api::parseMarkdown &request);
-
-  void on_request(uint64 id, const td_api::getMarkdownText &request);
-
-  void on_request(uint64 id, const td_api::searchStringsByPrefix &request);
-
-  void on_request(uint64 id, const td_api::checkQuickReplyShortcutName &request);
-
-  void on_request(uint64 id, const td_api::getCountryFlagEmoji &request);
-
-  void on_request(uint64 id, const td_api::getFileMimeType &request);
-
-  void on_request(uint64 id, const td_api::getFileExtension &request);
-
-  void on_request(uint64 id, const td_api::cleanFileName &request);
-
-  void on_request(uint64 id, const td_api::getLanguagePackString &request);
-
-  void on_request(uint64 id, const td_api::getPhoneNumberInfoSync &request);
-
-  void on_request(uint64 id, const td_api::getPushReceiverId &request);
-
-  void on_request(uint64 id, const td_api::getChatFolderDefaultIconName &request);
-
-  void on_request(uint64 id, const td_api::getJsonValue &request);
-
-  void on_request(uint64 id, const td_api::getJsonString &request);
-
-  void on_request(uint64 id, const td_api::getThemeParametersJsonString &request);
-
-  void on_request(uint64 id, const td_api::setLogStream &request);
-
-  void on_request(uint64 id, const td_api::getLogStream &request);
-
-  void on_request(uint64 id, const td_api::setLogVerbosityLevel &request);
-
-  void on_request(uint64 id, const td_api::getLogVerbosityLevel &request);
-
-  void on_request(uint64 id, const td_api::getLogTags &request);
-
-  void on_request(uint64 id, const td_api::setLogTagVerbosityLevel &request);
-
-  void on_request(uint64 id, const td_api::getLogTagVerbosityLevel &request);
-
-  void on_request(uint64 id, const td_api::addLogMessage &request);
-
-  void on_request(uint64 id, const td_api::testNetwork &request);
-
-  void on_request(uint64 id, td_api::testProxy &request);
-
-  void on_request(uint64 id, const td_api::testGetDifference &request);
-
-  void on_request(uint64 id, const td_api::testUseUpdate &request);
-
-  void on_request(uint64 id, const td_api::testReturnError &request);
-
-  void on_request(uint64 id, const td_api::testCallEmpty &request);
-
-  void on_request(uint64 id, const td_api::testSquareInt &request);
-
-  void on_request(uint64 id, td_api::testCallString &request);
-
-  void on_request(uint64 id, td_api::testCallBytes &request);
-
-  void on_request(uint64 id, td_api::testCallVectorInt &request);
-
-  void on_request(uint64 id, td_api::testCallVectorIntObject &request);
-
-  void on_request(uint64 id, td_api::testCallVectorString &request);
-
-  void on_request(uint64 id, td_api::testCallVectorStringObject &request);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RestrictionReason.cpp b/third-party/td/td/td/telegram/RestrictionReason.cpp
deleted file mode 100644
index db40337870..0000000000
--- a/third-party/td/td/td/telegram/RestrictionReason.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/RestrictionReason.h"
-
-#include "td/telegram/Global.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-
-#include <tuple>
-
-namespace td {
-
-const RestrictionReason *get_restriction_reason(const vector<RestrictionReason> &restriction_reasons, bool sensitive) {
-  if (restriction_reasons.empty()) {
-    return nullptr;
-  }
-
-  auto ignored_restriction_reasons = full_split(G()->get_option_string("ignored_restriction_reasons"), ',');
-  auto restriction_add_platforms = full_split(G()->get_option_string("restriction_add_platforms"), ',');
-  auto platform = [] {
-#if TD_ANDROID
-    return Slice("android");
-#elif TD_WINDOWS
-    return Slice("ms");
-#elif TD_DARWIN
-    return Slice("ios");
-#else
-    return Slice();
-#endif
-  }();
-
-  if (G()->get_option_boolean("ignore_platform_restrictions")) {
-    platform = Slice();
-    restriction_add_platforms.clear();
-  }
-
-  if (!platform.empty()) {
-    // first find restriction for the current platform
-    for (auto &restriction_reason : restriction_reasons) {
-      if (restriction_reason.platform_ == platform &&
-          !td::contains(ignored_restriction_reasons, restriction_reason.reason_) &&
-          restriction_reason.is_sensitive() == sensitive) {
-        return &restriction_reason;
-      }
-    }
-  }
-
-  if (!restriction_add_platforms.empty()) {
-    // then find restriction for added platforms
-    for (auto &restriction_reason : restriction_reasons) {
-      if (td::contains(restriction_add_platforms, restriction_reason.platform_) &&
-          !td::contains(ignored_restriction_reasons, restriction_reason.reason_) &&
-          restriction_reason.is_sensitive() == sensitive) {
-        return &restriction_reason;
-      }
-    }
-  }
-
-  // then find restriction for all platforms
-  for (auto &restriction_reason : restriction_reasons) {
-    if (restriction_reason.platform_ == "all" &&
-        !td::contains(ignored_restriction_reasons, restriction_reason.reason_) &&
-        restriction_reason.is_sensitive() == sensitive) {
-      return &restriction_reason;
-    }
-  }
-
-  return nullptr;
-}
-
-bool get_restriction_reason_has_sensitive_content(const vector<RestrictionReason> &restriction_reasons) {
-  return get_restriction_reason(restriction_reasons, true) != nullptr;
-}
-
-string get_restriction_reason_description(const vector<RestrictionReason> &restriction_reasons) {
-  const auto *restriction_reason = get_restriction_reason(restriction_reasons, false);
-  if (restriction_reason == nullptr) {
-    return string();
-  }
-  return restriction_reason->description_;
-}
-
-vector<RestrictionReason> get_restriction_reasons(Slice legacy_restriction_reason) {
-  Slice type;
-  Slice description;
-  std::tie(type, description) = split(legacy_restriction_reason, ':');
-  auto parts = full_split(type, '-');
-  description = trim(description);
-
-  vector<RestrictionReason> result;
-  if (parts.size() <= 1) {
-    return result;
-  }
-  for (size_t i = 1; i < parts.size(); i++) {
-    result.emplace_back(parts[i].str(), parts[0].str(), description.str());
-  }
-  return result;
-}
-
-vector<RestrictionReason> get_restriction_reasons(
-    vector<telegram_api::object_ptr<telegram_api::restrictionReason>> &&restriction_reasons) {
-  return transform(std::move(restriction_reasons),
-                   [](telegram_api::object_ptr<telegram_api::restrictionReason> &&restriction_reason) {
-                     return RestrictionReason(std::move(restriction_reason->platform_),
-                                              std::move(restriction_reason->reason_),
-                                              std::move(restriction_reason->text_));
-                   });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/RestrictionReason.h b/third-party/td/td/td/telegram/RestrictionReason.h
deleted file mode 100644
index df3a104a9c..0000000000
--- a/third-party/td/td/td/telegram/RestrictionReason.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class RestrictionReason {
-  string platform_;
-  string reason_;
-  string description_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const RestrictionReason &reason) {
-    return string_builder << "RestrictionReason[" << reason.platform_ << ", " << reason.reason_ << ", "
-                          << reason.description_ << "]";
-  }
-
-  friend bool operator==(const RestrictionReason &lhs, const RestrictionReason &rhs) {
-    return lhs.platform_ == rhs.platform_ && lhs.reason_ == rhs.reason_ && lhs.description_ == rhs.description_;
-  }
-
-  friend const RestrictionReason *get_restriction_reason(const vector<RestrictionReason> &restriction_reasons,
-                                                         bool sensitive);
-
-  friend string get_restriction_reason_description(const vector<RestrictionReason> &restriction_reasons);
-
-  bool is_sensitive() const {
-    return reason_ == "sensitive";
-  }
-
- public:
-  RestrictionReason() = default;
-
-  RestrictionReason(string &&platform, string &&reason, string &&description)
-      : platform_(std::move(platform)), reason_(std::move(reason)), description_(std::move(description)) {
-    if (description_.empty()) {
-      description_ = reason_;
-    }
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(platform_, storer);
-    td::store(reason_, storer);
-    td::store(description_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(platform_, parser);
-    td::parse(reason_, parser);
-    td::parse(description_, parser);
-  }
-};
-
-inline bool operator!=(const RestrictionReason &lhs, const RestrictionReason &rhs) {
-  return !(lhs == rhs);
-}
-
-bool get_restriction_reason_has_sensitive_content(const vector<RestrictionReason> &restriction_reasons);
-
-string get_restriction_reason_description(const vector<RestrictionReason> &restriction_reasons);
-
-vector<RestrictionReason> get_restriction_reasons(Slice legacy_restriction_reason);
-
-vector<RestrictionReason> get_restriction_reasons(
-    vector<telegram_api::object_ptr<telegram_api::restrictionReason>> &&restriction_reasons);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SavedMessagesManager.cpp b/third-party/td/td/td/telegram/SavedMessagesManager.cpp
deleted file mode 100644
index 06589a9c1b..0000000000
--- a/third-party/td/td/td/telegram/SavedMessagesManager.cpp
+++ /dev/null
@@ -1,1056 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SavedMessagesManager.h"
-
-#include "td/telegram/AffectedHistory.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageQueryManager.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-#include <algorithm>
-
-namespace td {
-
-class GetPinnedSavedDialogsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int32 limit_;
-
- public:
-  explicit GetPinnedSavedDialogsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 limit) {
-    limit_ = limit;
-    send_query(G()->net_query_creator().create(telegram_api::messages_getPinnedSavedDialogs()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getPinnedSavedDialogs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPinnedSavedDialogsQuery: " << to_string(result);
-    td_->saved_messages_manager_->on_get_saved_messages_topics(true, limit_, std::move(result), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSavedDialogsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int32 limit_;
-
- public:
-  explicit GetSavedDialogsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 offset_date, MessageId offset_message_id, DialogId offset_dialog_id, int32 limit) {
-    limit_ = limit;
-    auto input_peer = DialogManager::get_input_peer_force(offset_dialog_id);
-    CHECK(input_peer != nullptr);
-
-    int32 flags = telegram_api::messages_getSavedDialogs::EXCLUDE_PINNED_MASK;
-    send_query(G()->net_query_creator().create(telegram_api::messages_getSavedDialogs(
-        flags, false /*ignored*/, offset_date, offset_message_id.get_server_message_id().get(), std::move(input_peer),
-        limit, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSavedDialogs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetSavedDialogsQuery: " << to_string(result);
-    td_->saved_messages_manager_->on_get_saved_messages_topics(false, limit_, std::move(result), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSavedHistoryQuery final : public Td::ResultHandler {
-  Promise<MessagesInfo> promise_;
-
- public:
-  explicit GetSavedHistoryQuery(Promise<MessagesInfo> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(SavedMessagesTopicId saved_messages_topic_id, MessageId from_message_id, int32 offset, int32 limit) {
-    auto saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-    CHECK(saved_input_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::messages_getSavedHistory(
-        std::move(saved_input_peer), from_message_id.get_server_message_id().get(), 0, offset, limit, 0, 0, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSavedHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-    auto info = get_messages_info(td_, my_dialog_id, result_ptr.move_as_ok(), "GetSavedHistoryQuery");
-    LOG_IF(ERROR, info.is_channel_messages) << "Receive channel messages in GetSavedHistoryQuery";
-    promise_.set_value(std::move(info));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSavedMessageByDateQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::message>> promise_;
-  int32 date_ = 0;
-
- public:
-  explicit GetSavedMessageByDateQuery(Promise<td_api::object_ptr<td_api::message>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(SavedMessagesTopicId saved_messages_topic_id, int32 date) {
-    date_ = date;
-    auto saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-    CHECK(saved_input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getSavedHistory(std::move(saved_input_peer), 0, date, -3, 5, 0, 0, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSavedHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-    auto info = get_messages_info(td_, my_dialog_id, result_ptr.move_as_ok(), "GetSavedMessageByDateQuery");
-    LOG_IF(ERROR, info.is_channel_messages) << "Receive channel messages in GetSavedMessageByDateQuery";
-    for (auto &message : info.messages) {
-      auto message_date = MessagesManager::get_message_date(message);
-      auto message_dialog_id = DialogId::get_message_dialog_id(message);
-      if (message_dialog_id != my_dialog_id) {
-        LOG(ERROR) << "Receive message in wrong " << message_dialog_id << " instead of " << my_dialog_id;
-        continue;
-      }
-      if (message_date != 0 && message_date <= date_) {
-        auto message_full_id = td_->messages_manager_->on_get_message(std::move(message), false, false, false,
-                                                                      "GetSavedMessageByDateQuery");
-        if (message_full_id != MessageFullId()) {
-          return promise_.set_value(
-              td_->messages_manager_->get_message_object(message_full_id, "GetSavedMessageByDateQuery"));
-        }
-      }
-    }
-    promise_.set_value(nullptr);
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteSavedHistoryQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-
- public:
-  explicit DeleteSavedHistoryQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(SavedMessagesTopicId saved_messages_topic_id) {
-    auto saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-    CHECK(saved_input_peer != nullptr);
-
-    int32 flags = 0;
-    send_query(G()->net_query_creator().create(telegram_api::messages_deleteSavedHistory(
-        flags, std::move(saved_input_peer), std::numeric_limits<int32>::max(), 0, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteSavedHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteSavedMessagesByDateQuery final : public Td::ResultHandler {
-  Promise<AffectedHistory> promise_;
-
- public:
-  explicit DeleteSavedMessagesByDateQuery(Promise<AffectedHistory> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(SavedMessagesTopicId saved_messages_topic_id, int32 min_date, int32 max_date) {
-    auto saved_input_peer = saved_messages_topic_id.get_input_peer(td_);
-    CHECK(saved_input_peer != nullptr);
-
-    int32 flags =
-        telegram_api::messages_deleteHistory::MIN_DATE_MASK | telegram_api::messages_deleteHistory::MAX_DATE_MASK;
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_deleteSavedHistory(flags, std::move(saved_input_peer), 0, min_date, max_date)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_deleteSavedHistory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(AffectedHistory(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleSavedDialogPinQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleSavedDialogPinQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(SavedMessagesTopicId saved_messages_topic_id, bool is_pinned) {
-    auto saved_input_peer = saved_messages_topic_id.get_input_dialog_peer(td_);
-    CHECK(saved_input_peer != nullptr);
-
-    int32 flags = 0;
-    if (is_pinned) {
-      flags |= telegram_api::messages_toggleSavedDialogPin::PINNED_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_toggleSavedDialogPin(flags, false /*ignored*/, std::move(saved_input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_toggleSavedDialogPin>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->saved_messages_manager_->reload_pinned_saved_messages_topics();
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderPinnedSavedDialogsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ReorderPinnedSavedDialogsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const vector<SavedMessagesTopicId> &saved_messages_topic_ids) {
-    auto order = transform(saved_messages_topic_ids, [td = td_](SavedMessagesTopicId saved_messages_topic_id) {
-      auto saved_input_peer = saved_messages_topic_id.get_input_dialog_peer(td);
-      CHECK(saved_input_peer != nullptr);
-      return saved_input_peer;
-    });
-    int32 flags = telegram_api::messages_reorderPinnedSavedDialogs::FORCE_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_reorderPinnedSavedDialogs(flags, true /*ignored*/, std::move(order))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_reorderPinnedSavedDialogs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Result is false"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->saved_messages_manager_->reload_pinned_saved_messages_topics();
-    promise_.set_error(std::move(status));
-  }
-};
-
-SavedMessagesManager::SavedMessagesManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void SavedMessagesManager::tear_down() {
-  parent_.reset();
-}
-
-SavedMessagesTopicId SavedMessagesManager::get_topic_id(int64 topic_id) const {
-  if (topic_id == 0) {
-    return SavedMessagesTopicId();
-  }
-  auto saved_messages_topic_id = SavedMessagesTopicId(DialogId(topic_id));
-  if (saved_messages_topics_.count(saved_messages_topic_id) == 0) {
-    return SavedMessagesTopicId(DialogId(std::numeric_limits<int64>::max()));  // an invalid topic identifier
-  }
-  return saved_messages_topic_id;
-}
-
-vector<SavedMessagesTopicId> SavedMessagesManager::get_topic_ids(const vector<int64> &topic_ids) const {
-  return transform(topic_ids, [this](int64 topic_id) { return get_topic_id(topic_id); });
-}
-
-int64 SavedMessagesManager::get_saved_messages_topic_id_object(SavedMessagesTopicId saved_messages_topic_id) {
-  if (saved_messages_topic_id == SavedMessagesTopicId()) {
-    return 0;
-  }
-
-  add_topic(saved_messages_topic_id);
-
-  return saved_messages_topic_id.get_unique_id();
-}
-
-SavedMessagesManager::SavedMessagesTopic *SavedMessagesManager::get_topic(
-    SavedMessagesTopicId saved_messages_topic_id) {
-  CHECK(saved_messages_topic_id.is_valid());
-  auto it = saved_messages_topics_.find(saved_messages_topic_id);
-  if (it == saved_messages_topics_.end()) {
-    return nullptr;
-  }
-  return it->second.get();
-}
-
-SavedMessagesManager::SavedMessagesTopic *SavedMessagesManager::add_topic(
-    SavedMessagesTopicId saved_messages_topic_id) {
-  CHECK(saved_messages_topic_id.is_valid());
-  auto &result = saved_messages_topics_[saved_messages_topic_id];
-  if (result == nullptr) {
-    result = make_unique<SavedMessagesTopic>();
-    result->saved_messages_topic_id_ = saved_messages_topic_id;
-    if (saved_messages_topic_id == SavedMessagesTopicId(td_->dialog_manager_->get_my_dialog_id())) {
-      auto draft_message_object = td_->messages_manager_->get_my_dialog_draft_message_object();
-      if (draft_message_object != nullptr) {
-        result->draft_message_date_ = draft_message_object->date_;
-      }
-    }
-    send_update_saved_messages_topic(result.get(), "add_topic");
-  }
-  return result.get();
-}
-
-void SavedMessagesManager::set_topic_last_message_id(SavedMessagesTopicId saved_messages_topic_id,
-                                                     MessageId last_message_id, int32 last_message_date) {
-  auto *topic = add_topic(saved_messages_topic_id);
-  do_set_topic_last_message_id(topic, last_message_id, last_message_date);
-  on_topic_changed(topic, "set_topic_last_message_id");
-}
-
-void SavedMessagesManager::do_set_topic_last_message_id(SavedMessagesTopic *topic, MessageId last_message_id,
-                                                        int32 last_message_date) {
-  if (topic->last_message_id_ == last_message_id) {
-    return;
-  }
-
-  CHECK(last_message_id == MessageId() || last_message_id.is_valid());
-  LOG(INFO) << "Set last message in " << topic->saved_messages_topic_id_ << " to " << last_message_id;
-  topic->last_message_id_ = last_message_id;
-  topic->last_message_date_ = last_message_date;
-  topic->is_changed_ = true;
-}
-
-void SavedMessagesManager::on_topic_message_updated(SavedMessagesTopicId saved_messages_topic_id,
-                                                    MessageId message_id) {
-  auto *topic = get_topic(saved_messages_topic_id);
-  if (topic == nullptr || topic->last_message_id_ != message_id) {
-    return;
-  }
-
-  send_update_saved_messages_topic(topic, "on_topic_message_updated");
-}
-
-void SavedMessagesManager::on_topic_message_deleted(SavedMessagesTopicId saved_messages_topic_id,
-                                                    MessageId message_id) {
-  auto *topic = get_topic(saved_messages_topic_id);
-  if (topic == nullptr || topic->last_message_id_ != message_id) {
-    return;
-  }
-
-  do_set_topic_last_message_id(topic, MessageId(), 0);
-
-  on_topic_changed(topic, "on_topic_message_deleted");
-
-  get_saved_messages_topic_history(saved_messages_topic_id, MessageId(), 0, 1, Auto());
-}
-
-void SavedMessagesManager::on_topic_draft_message_updated(SavedMessagesTopicId saved_messages_topic_id,
-                                                          int32 draft_message_date) {
-  auto *topic = get_topic(saved_messages_topic_id);
-  if (topic == nullptr) {
-    LOG(INFO) << "Updated draft in unknown " << saved_messages_topic_id;
-    return;
-  }
-
-  LOG(INFO) << "Set draft message date in " << topic->saved_messages_topic_id_ << " to " << draft_message_date;
-  topic->draft_message_date_ = draft_message_date;
-  topic->is_changed_ = true;
-
-  on_topic_changed(topic, "on_topic_draft_message_updated");
-}
-
-int64 SavedMessagesManager::get_topic_order(int32 message_date, MessageId message_id) {
-  return (static_cast<int64>(message_date) << 31) +
-         message_id.get_prev_server_message_id().get_server_message_id().get();
-}
-
-int64 SavedMessagesManager::get_topic_public_order(const SavedMessagesTopic *topic) const {
-  if (TopicDate(topic->private_order_, topic->saved_messages_topic_id_) <= topic_list_.last_topic_date_) {
-    return topic->private_order_;
-  }
-  return 0;
-}
-
-void SavedMessagesManager::on_topic_changed(SavedMessagesTopic *topic, const char *source) {
-  CHECK(topic != nullptr);
-  if (!topic->is_changed_) {
-    return;
-  }
-  topic->is_changed_ = false;
-
-  int64 new_private_order;
-  if (topic->pinned_order_ != 0) {
-    new_private_order = topic->pinned_order_;
-  } else if (topic->last_message_id_ != MessageId()) {
-    new_private_order = get_topic_order(topic->last_message_date_, topic->last_message_id_);
-  } else {
-    new_private_order = 0;
-  }
-  if (topic->draft_message_date_ != 0) {
-    int64 draft_order = get_topic_order(topic->draft_message_date_, MessageId());
-    if (new_private_order < draft_order) {
-      new_private_order = draft_order;
-    }
-  }
-  if (topic->private_order_ != new_private_order) {
-    if (topic->private_order_ != 0) {
-      bool is_deleted = topic_list_.ordered_topics_.erase({topic->private_order_, topic->saved_messages_topic_id_}) > 0;
-      CHECK(is_deleted);
-      if (topic_list_.server_total_count_ > 0) {
-        topic_list_.server_total_count_--;
-      }
-    }
-    topic->private_order_ = new_private_order;
-    if (topic->private_order_ != 0) {
-      bool is_inserted =
-          topic_list_.ordered_topics_.insert({topic->private_order_, topic->saved_messages_topic_id_}).second;
-      CHECK(is_inserted);
-      if (topic_list_.server_total_count_ >= 0) {
-        topic_list_.server_total_count_++;
-      }
-    }
-  }
-  LOG(INFO) << "Update order of " << topic->saved_messages_topic_id_ << " to " << topic->private_order_ << " from "
-            << source;
-
-  send_update_saved_messages_topic(topic, source);
-
-  update_saved_messages_topic_sent_total_count(source);
-}
-
-void SavedMessagesManager::load_saved_messages_topics(int32 limit, Promise<Unit> &&promise) {
-  if (limit < 0) {
-    return promise.set_error(Status::Error(400, "Limit must be non-negative"));
-  }
-  if (limit == 0) {
-    return promise.set_value(Unit());
-  }
-  if (topic_list_.last_topic_date_ == MAX_TOPIC_DATE) {
-    return promise.set_error(Status::Error(404, "Not Found"));
-  }
-  if (!topic_list_.are_pinned_saved_messages_topics_inited_) {
-    return get_pinned_saved_dialogs(limit, std::move(promise));
-  }
-  get_saved_dialogs(limit, std::move(promise));
-}
-
-void SavedMessagesManager::get_pinned_saved_dialogs(int32 limit, Promise<Unit> &&promise) {
-  topic_list_.load_pinned_queries_.push_back(std::move(promise));
-  if (topic_list_.load_pinned_queries_.size() == 1) {
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this)](Result<Unit> &&result) {
-      send_closure(actor_id, &SavedMessagesManager::on_get_pinned_saved_dialogs, std::move(result));
-    });
-    td_->create_handler<GetPinnedSavedDialogsQuery>(std::move(query_promise))->send(limit);
-  }
-}
-
-void SavedMessagesManager::on_get_pinned_saved_dialogs(Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error()) {
-    fail_promises(topic_list_.load_pinned_queries_, result.move_as_error());
-  } else {
-    set_promises(topic_list_.load_pinned_queries_);
-  }
-}
-
-void SavedMessagesManager::get_saved_dialogs(int32 limit, Promise<Unit> &&promise) {
-  topic_list_.load_queries_.push_back(std::move(promise));
-  if (topic_list_.load_queries_.size() == 1) {
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this)](Result<Unit> &&result) {
-      send_closure(actor_id, &SavedMessagesManager::on_get_saved_dialogs, std::move(result));
-    });
-    td_->create_handler<GetSavedDialogsQuery>(std::move(query_promise))
-        ->send(topic_list_.offset_date_, topic_list_.offset_message_id_, topic_list_.offset_dialog_id_, limit);
-  }
-}
-
-void SavedMessagesManager::on_get_saved_dialogs(Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error()) {
-    fail_promises(topic_list_.load_queries_, result.move_as_error());
-  } else {
-    set_promises(topic_list_.load_queries_);
-  }
-}
-
-void SavedMessagesManager::on_get_saved_messages_topics(
-    bool is_pinned, int32 limit, telegram_api::object_ptr<telegram_api::messages_SavedDialogs> &&saved_dialogs_ptr,
-    Promise<Unit> &&promise) {
-  CHECK(saved_dialogs_ptr != nullptr);
-  int32 total_count = -1;
-  vector<telegram_api::object_ptr<telegram_api::savedDialog>> dialogs;
-  vector<telegram_api::object_ptr<telegram_api::Message>> messages;
-  vector<telegram_api::object_ptr<telegram_api::Chat>> chats;
-  vector<telegram_api::object_ptr<telegram_api::User>> users;
-  bool is_last = false;
-  switch (saved_dialogs_ptr->get_id()) {
-    case telegram_api::messages_savedDialogsNotModified::ID:
-      LOG(ERROR) << "Receive messages.savedDialogsNotModified";
-      return promise.set_error(Status::Error(500, "Receive messages.savedDialogsNotModified"));
-    case telegram_api::messages_savedDialogs::ID: {
-      auto saved_dialogs = telegram_api::move_object_as<telegram_api::messages_savedDialogs>(saved_dialogs_ptr);
-      total_count = static_cast<int32>(saved_dialogs->dialogs_.size());
-      dialogs = std::move(saved_dialogs->dialogs_);
-      messages = std::move(saved_dialogs->messages_);
-      chats = std::move(saved_dialogs->chats_);
-      users = std::move(saved_dialogs->users_);
-      is_last = true;
-      break;
-    }
-    case telegram_api::messages_savedDialogsSlice::ID: {
-      auto saved_dialogs = telegram_api::move_object_as<telegram_api::messages_savedDialogsSlice>(saved_dialogs_ptr);
-      total_count = saved_dialogs->count_;
-      if (total_count < static_cast<int32>(saved_dialogs->dialogs_.size())) {
-        LOG(ERROR) << "Receive total_count = " << total_count << ", but " << saved_dialogs->dialogs_.size()
-                   << " Saved Messages topics";
-        total_count = static_cast<int32>(saved_dialogs->dialogs_.size());
-      }
-      dialogs = std::move(saved_dialogs->dialogs_);
-      messages = std::move(saved_dialogs->messages_);
-      chats = std::move(saved_dialogs->chats_);
-      users = std::move(saved_dialogs->users_);
-      is_last = dialogs.empty();
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  td_->user_manager_->on_get_users(std::move(users), "on_get_saved_messages_topics");
-  td_->chat_manager_->on_get_chats(std::move(chats), "on_get_saved_messages_topics");
-
-  FlatHashMap<MessageId, telegram_api::object_ptr<telegram_api::Message>, MessageIdHash> message_id_to_message;
-  for (auto &message : messages) {
-    auto message_id = MessageId::get_message_id(message, false);
-    if (!message_id.is_valid()) {
-      continue;
-    }
-    message_id_to_message[message_id] = std::move(message);
-  }
-
-  int32 last_message_date = 0;
-  MessageId last_message_id;
-  DialogId last_dialog_id;
-  vector<SavedMessagesTopicId> added_saved_messages_topic_ids;
-  for (auto &dialog : dialogs) {
-    auto peer_dialog_id = DialogId(dialog->peer_);
-    if (!peer_dialog_id.is_valid()) {
-      LOG(ERROR) << "Receive " << peer_dialog_id << " in result of getSavedMessagesTopics";
-      total_count--;
-      continue;
-    }
-    SavedMessagesTopicId saved_messages_topic_id(peer_dialog_id);
-    if (td::contains(added_saved_messages_topic_ids, saved_messages_topic_id)) {
-      LOG(ERROR) << "Receive " << saved_messages_topic_id
-                 << " twice in result of getSavedMessagesTopics with total_count = " << total_count;
-      total_count--;
-      continue;
-    }
-    added_saved_messages_topic_ids.push_back(saved_messages_topic_id);
-
-    MessageId last_topic_message_id(ServerMessageId(dialog->top_message_));
-    if (!last_topic_message_id.is_valid()) {
-      // skip topics without messages
-      LOG(ERROR) << "Receive " << saved_messages_topic_id << " without last message";
-      total_count--;
-      continue;
-    }
-
-    auto it = message_id_to_message.find(last_topic_message_id);
-    if (it == message_id_to_message.end()) {
-      LOG(ERROR) << "Can't find last " << last_topic_message_id << " in " << saved_messages_topic_id;
-      total_count--;
-      continue;
-    }
-    auto message_date = MessagesManager::get_message_date(it->second);
-    if (!is_pinned && message_date > 0) {
-      if (last_message_date != 0 && (last_message_date < message_date || last_message_id < last_topic_message_id)) {
-        LOG(ERROR) << "Receive " << last_topic_message_id << " at " << message_date << " after " << last_message_id
-                   << " at " << last_message_date;
-      }
-      last_message_date = message_date;
-      last_message_id = last_topic_message_id;
-      last_dialog_id = peer_dialog_id;
-    }
-    auto full_message_id = td_->messages_manager_->on_get_message(std::move(it->second), false, false, false,
-                                                                  "on_get_saved_messages_topics");
-    message_id_to_message.erase(it);
-
-    if (full_message_id.get_dialog_id() != td_->dialog_manager_->get_my_dialog_id()) {
-      if (full_message_id.get_dialog_id() != DialogId()) {
-        LOG(ERROR) << "Can't add last " << last_topic_message_id << " to " << saved_messages_topic_id;
-      }
-      total_count--;
-      continue;
-    }
-    CHECK(full_message_id.get_message_id() == last_topic_message_id);
-
-    auto *topic = add_topic(saved_messages_topic_id);
-    if (topic->last_message_id_ == MessageId()) {
-      do_set_topic_last_message_id(topic, last_topic_message_id, message_date);
-    }
-    on_topic_changed(topic, "on_get_saved_messages_topics");
-  }
-
-  if (!is_pinned) {
-    topic_list_.server_total_count_ = total_count;
-
-    topic_list_.offset_date_ = last_message_date;
-    topic_list_.offset_dialog_id_ = last_dialog_id;
-    topic_list_.offset_message_id_ = last_message_id;
-  } else if (topic_list_.server_total_count_ <= total_count) {
-    topic_list_.server_total_count_ = total_count + 1;
-  }
-  update_saved_messages_topic_sent_total_count("on_get_saved_messages_topics");
-
-  if (is_pinned) {
-    if (!topic_list_.are_pinned_saved_messages_topics_inited_ && total_count < limit) {
-      get_saved_dialogs(limit - total_count, std::move(promise));
-      promise = Promise<Unit>();
-    }
-    topic_list_.are_pinned_saved_messages_topics_inited_ = true;
-    set_pinned_saved_messages_topics(std::move(added_saved_messages_topic_ids));
-    set_last_topic_date({MIN_PINNED_TOPIC_ORDER - 1, SavedMessagesTopicId()});
-  } else if (is_last) {
-    set_last_topic_date(MAX_TOPIC_DATE);
-
-    if (dialogs.empty()) {
-      return promise.set_error(Status::Error(404, "Not Found"));
-    }
-  } else if (last_message_date > 0) {
-    set_last_topic_date({get_topic_order(last_message_date, last_message_id), SavedMessagesTopicId(last_dialog_id)});
-  } else {
-    LOG(ERROR) << "Receive no suitable topics";
-    set_last_topic_date(MAX_TOPIC_DATE);
-    return promise.set_error(Status::Error(404, "Not Found"));
-  }
-
-  promise.set_value(Unit());
-}
-
-td_api::object_ptr<td_api::savedMessagesTopic> SavedMessagesManager::get_saved_messages_topic_object(
-    const SavedMessagesTopic *topic) const {
-  CHECK(topic != nullptr);
-  td_api::object_ptr<td_api::message> last_message_object;
-  if (topic->last_message_id_ != MessageId()) {
-    last_message_object = td_->messages_manager_->get_message_object(
-        {td_->dialog_manager_->get_my_dialog_id(), topic->last_message_id_}, "get_saved_messages_topic_object");
-  }
-  td_api::object_ptr<td_api::draftMessage> draft_message_object;
-  if (topic->draft_message_date_ != 0) {
-    draft_message_object = td_->messages_manager_->get_my_dialog_draft_message_object();
-  }
-  return td_api::make_object<td_api::savedMessagesTopic>(
-      topic->saved_messages_topic_id_.get_unique_id(),
-      topic->saved_messages_topic_id_.get_saved_messages_topic_type_object(td_), topic->pinned_order_ != 0,
-      get_topic_public_order(topic), std::move(last_message_object), std::move(draft_message_object));
-}
-
-td_api::object_ptr<td_api::updateSavedMessagesTopic> SavedMessagesManager::get_update_saved_messages_topic_object(
-    const SavedMessagesTopic *topic) const {
-  return td_api::make_object<td_api::updateSavedMessagesTopic>(get_saved_messages_topic_object(topic));
-}
-
-void SavedMessagesManager::send_update_saved_messages_topic(const SavedMessagesTopic *topic, const char *source) const {
-  CHECK(topic != nullptr);
-  LOG(INFO) << "Send update about " << topic->saved_messages_topic_id_ << " with order "
-            << get_topic_public_order(topic) << " and last " << topic->last_message_id_ << " sent at "
-            << topic->last_message_date_ << " with draft at " << topic->draft_message_date_ << " from " << source;
-  send_closure(G()->td(), &Td::send_update, get_update_saved_messages_topic_object(topic));
-}
-
-int64 SavedMessagesManager::get_next_pinned_saved_messages_topic_order() {
-  current_pinned_saved_messages_topic_order_++;
-  LOG(INFO) << "Assign pinned_order = " << current_pinned_saved_messages_topic_order_;
-  return current_pinned_saved_messages_topic_order_;
-}
-
-td_api::object_ptr<td_api::updateSavedMessagesTopicCount>
-SavedMessagesManager::get_update_saved_messages_topic_count_object() const {
-  CHECK(topic_list_.sent_total_count_ != -1);
-  return td_api::make_object<td_api::updateSavedMessagesTopicCount>(topic_list_.sent_total_count_);
-}
-
-void SavedMessagesManager::update_saved_messages_topic_sent_total_count(const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (topic_list_.server_total_count_ == -1) {
-    return;
-  }
-  LOG(INFO) << "Update Saved Messages topic sent total count from " << source;
-  auto new_total_count = static_cast<int32>(topic_list_.ordered_topics_.size());
-  if (topic_list_.last_topic_date_ != MAX_TOPIC_DATE) {
-    new_total_count = max(new_total_count, topic_list_.server_total_count_);
-  } else if (topic_list_.server_total_count_ != new_total_count) {
-    topic_list_.server_total_count_ = new_total_count;
-  }
-  if (topic_list_.sent_total_count_ != new_total_count) {
-    topic_list_.sent_total_count_ = new_total_count;
-    send_closure(G()->td(), &Td::send_update, get_update_saved_messages_topic_count_object());
-  }
-}
-
-bool SavedMessagesManager::set_pinned_saved_messages_topics(vector<SavedMessagesTopicId> saved_messages_topic_ids) {
-  if (topic_list_.pinned_saved_messages_topic_ids_ == saved_messages_topic_ids) {
-    return false;
-  }
-  LOG(INFO) << "Update pinned Saved Messages topics from " << topic_list_.pinned_saved_messages_topic_ids_ << " to "
-            << saved_messages_topic_ids;
-  FlatHashSet<SavedMessagesTopicId, SavedMessagesTopicIdHash> old_pinned_saved_messages_topic_ids;
-  for (auto pinned_saved_messages_topic_id : topic_list_.pinned_saved_messages_topic_ids_) {
-    CHECK(pinned_saved_messages_topic_id.is_valid());
-    old_pinned_saved_messages_topic_ids.insert(pinned_saved_messages_topic_id);
-  }
-
-  auto pinned_saved_messages_topic_ids = topic_list_.pinned_saved_messages_topic_ids_;
-  std::reverse(pinned_saved_messages_topic_ids.begin(), pinned_saved_messages_topic_ids.end());
-  std::reverse(saved_messages_topic_ids.begin(), saved_messages_topic_ids.end());
-  auto old_it = pinned_saved_messages_topic_ids.begin();
-  for (auto saved_messages_topic_id : saved_messages_topic_ids) {
-    old_pinned_saved_messages_topic_ids.erase(saved_messages_topic_id);
-    while (old_it < pinned_saved_messages_topic_ids.end()) {
-      if (*old_it == saved_messages_topic_id) {
-        break;
-      }
-      ++old_it;
-    }
-    if (old_it < pinned_saved_messages_topic_ids.end()) {
-      // leave saved_messages_topic where it is
-      ++old_it;
-      continue;
-    }
-    set_saved_messages_topic_is_pinned(saved_messages_topic_id, true, "set_pinned_saved_messages_topics 1");
-  }
-  for (auto saved_messages_topic_id : old_pinned_saved_messages_topic_ids) {
-    set_saved_messages_topic_is_pinned(saved_messages_topic_id, false, "set_pinned_saved_messages_topics 2");
-  }
-  return true;
-}
-
-bool SavedMessagesManager::set_saved_messages_topic_is_pinned(SavedMessagesTopicId saved_messages_topic_id,
-                                                              bool is_pinned, const char *source) {
-  return set_saved_messages_topic_is_pinned(get_topic(saved_messages_topic_id), is_pinned, source);
-}
-
-bool SavedMessagesManager::set_saved_messages_topic_is_pinned(SavedMessagesTopic *topic, bool is_pinned,
-                                                              const char *source) {
-  CHECK(!td_->auth_manager_->is_bot());
-  LOG_CHECK(topic != nullptr) << source;
-  if (!topic_list_.are_pinned_saved_messages_topics_inited_) {
-    return false;
-  }
-  auto saved_messages_topic_id = topic->saved_messages_topic_id_;
-  if (is_pinned) {
-    if (!topic_list_.pinned_saved_messages_topic_ids_.empty() &&
-        topic_list_.pinned_saved_messages_topic_ids_[0] == saved_messages_topic_id) {
-      return false;
-    }
-    topic->pinned_order_ = get_next_pinned_saved_messages_topic_order();
-    add_to_top(topic_list_.pinned_saved_messages_topic_ids_, topic_list_.pinned_saved_messages_topic_ids_.size() + 1,
-               saved_messages_topic_id);
-  } else {
-    if (topic->pinned_order_ == 0 ||
-        !td::remove(topic_list_.pinned_saved_messages_topic_ids_, saved_messages_topic_id)) {
-      return false;
-    }
-    topic->pinned_order_ = 0;
-  }
-
-  LOG(INFO) << "Set " << saved_messages_topic_id << " pinned order to " << topic->pinned_order_ << " from " << source;
-  topic->is_changed_ = true;
-  on_topic_changed(topic, source);
-  return true;
-}
-
-void SavedMessagesManager::set_last_topic_date(TopicDate topic_date) {
-  if (topic_date <= topic_list_.last_topic_date_) {
-    return;
-  }
-  auto min_topic_date = topic_list_.last_topic_date_;
-  topic_list_.last_topic_date_ = topic_date;
-  for (auto it = topic_list_.ordered_topics_.upper_bound(min_topic_date);
-       it != topic_list_.ordered_topics_.end() && *it <= topic_date; ++it) {
-    auto topic = get_topic(it->get_topic_id());
-    CHECK(topic != nullptr);
-    send_update_saved_messages_topic(topic, "set_last_topic_date");
-  }
-}
-
-void SavedMessagesManager::get_saved_messages_topic_history(SavedMessagesTopicId saved_messages_topic_id,
-                                                            MessageId from_message_id, int32 offset, int32 limit,
-                                                            Promise<td_api::object_ptr<td_api::messages>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_GET_HISTORY) {
-    limit = MAX_GET_HISTORY;
-  }
-  if (offset > 0) {
-    return promise.set_error(Status::Error(400, "Parameter offset must be non-positive"));
-  }
-  if (offset <= -MAX_GET_HISTORY) {
-    return promise.set_error(Status::Error(400, "Parameter offset must be greater than -100"));
-  }
-  if (offset < -limit) {
-    return promise.set_error(Status::Error(400, "Parameter offset must be greater than or equal to -limit"));
-  }
-
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_status(td_));
-
-  if (from_message_id == MessageId() || from_message_id.get() > MessageId::max().get()) {
-    from_message_id = MessageId::max();
-    limit += offset;
-    offset = 0;
-  }
-  if (!from_message_id.is_valid() || !from_message_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Invalid value of parameter from_message_id specified"));
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), saved_messages_topic_id, from_message_id,
-                                               promise = std::move(promise)](Result<MessagesInfo> &&r_info) mutable {
-    send_closure(actor_id, &SavedMessagesManager::on_get_saved_messages_topic_history, saved_messages_topic_id,
-                 from_message_id, std::move(r_info), std::move(promise));
-  });
-  td_->create_handler<GetSavedHistoryQuery>(std::move(query_promise))
-      ->send(saved_messages_topic_id, from_message_id, offset, limit);
-}
-
-void SavedMessagesManager::on_get_saved_messages_topic_history(
-    SavedMessagesTopicId saved_messages_topic_id, MessageId from_message_id, Result<MessagesInfo> &&r_info,
-    Promise<td_api::object_ptr<td_api::messages>> &&promise) {
-  G()->ignore_result_if_closing(r_info);
-  if (r_info.is_error()) {
-    return promise.set_error(r_info.move_as_error());
-  }
-  auto info = r_info.move_as_ok();
-
-  auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-  vector<td_api::object_ptr<td_api::message>> messages;
-  MessageId last_message_id;
-  int32 last_message_date = 0;
-  for (auto &message : info.messages) {
-    auto message_date = MessagesManager::get_message_date(message);
-    auto full_message_id = td_->messages_manager_->on_get_message(std::move(message), false, false, false,
-                                                                  "on_get_saved_messages_topic_history");
-    auto dialog_id = full_message_id.get_dialog_id();
-    if (dialog_id == DialogId()) {
-      continue;
-    }
-    if (dialog_id != my_dialog_id) {
-      LOG(ERROR) << "Receive " << full_message_id << " in history of " << saved_messages_topic_id;
-      continue;
-    }
-    if (!last_message_id.is_valid()) {
-      last_message_id = full_message_id.get_message_id();
-      last_message_date = message_date;
-    }
-    messages.push_back(
-        td_->messages_manager_->get_message_object(full_message_id, "on_get_saved_messages_topic_history"));
-  }
-  if (from_message_id == MessageId::max()) {
-    auto *topic = add_topic(saved_messages_topic_id);
-    if (info.messages.empty()) {
-      do_set_topic_last_message_id(topic, MessageId(), 0);
-    } else {
-      if (last_message_id.is_valid() && topic->last_message_id_ == MessageId()) {
-        do_set_topic_last_message_id(topic, last_message_id, last_message_date);
-      }
-    }
-    on_topic_changed(topic, "on_get_saved_messages_topic_history");
-  }
-  promise.set_value(td_api::make_object<td_api::messages>(info.total_count, std::move(messages)));
-}
-
-void SavedMessagesManager::delete_saved_messages_topic_history(SavedMessagesTopicId saved_messages_topic_id,
-                                                               Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_status(td_));
-
-  MessageQueryManager::AffectedHistoryQuery query = [td = td_, saved_messages_topic_id](
-                                                        DialogId, Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<DeleteSavedHistoryQuery>(std::move(query_promise))->send(saved_messages_topic_id);
-  };
-  auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-  td_->message_query_manager_->run_affected_history_query_until_complete(my_dialog_id, std::move(query), true,
-                                                                         std::move(promise));
-}
-
-void SavedMessagesManager::get_saved_messages_topic_message_by_date(
-    SavedMessagesTopicId saved_messages_topic_id, int32 date, Promise<td_api::object_ptr<td_api::message>> &&promise) {
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_status(td_));
-
-  if (date <= 0) {
-    date = 1;
-  }
-
-  td_->create_handler<GetSavedMessageByDateQuery>(std::move(promise))->send(saved_messages_topic_id, date);
-}
-
-void SavedMessagesManager::delete_saved_messages_topic_messages_by_date(SavedMessagesTopicId saved_messages_topic_id,
-                                                                        int32 min_date, int32 max_date,
-                                                                        Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_status(td_));
-
-  TRY_STATUS_PROMISE(promise, MessagesManager::fix_delete_message_min_max_dates(min_date, max_date));
-  if (max_date == 0) {
-    return promise.set_value(Unit());
-  }
-
-  MessageQueryManager::AffectedHistoryQuery query = [td = td_, saved_messages_topic_id, min_date, max_date](
-                                                        DialogId, Promise<AffectedHistory> &&query_promise) {
-    td->create_handler<DeleteSavedMessagesByDateQuery>(std::move(query_promise))
-        ->send(saved_messages_topic_id, min_date, max_date);
-  };
-  auto my_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-  td_->message_query_manager_->run_affected_history_query_until_complete(my_dialog_id, std::move(query), true,
-                                                                         std::move(promise));
-}
-
-int32 SavedMessagesManager::get_pinned_saved_messages_topic_limit() const {
-  return clamp(narrow_cast<int32>(td_->option_manager_->get_option_integer("pinned_saved_messages_topic_count_max")), 0,
-               1000);
-}
-
-void SavedMessagesManager::toggle_saved_messages_topic_is_pinned(SavedMessagesTopicId saved_messages_topic_id,
-                                                                 bool is_pinned, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_status(td_));
-  if (!topic_list_.are_pinned_saved_messages_topics_inited_) {
-    return promise.set_error(Status::Error(400, "Pinned Saved Messages topics must be loaded first"));
-  }
-  auto *topic = get_topic(saved_messages_topic_id);
-  if (topic == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't find Saved Messages topic"));
-  }
-  if (is_pinned && !td::contains(topic_list_.pinned_saved_messages_topic_ids_, saved_messages_topic_id) &&
-      static_cast<size_t>(get_pinned_saved_messages_topic_limit()) <=
-          topic_list_.pinned_saved_messages_topic_ids_.size()) {
-    return promise.set_error(Status::Error(400, "The maximum number of pinned chats exceeded"));
-  }
-  if (!set_saved_messages_topic_is_pinned(topic, is_pinned, "toggle_saved_messages_topic_is_pinned")) {
-    return promise.set_value(Unit());
-  }
-  td_->create_handler<ToggleSavedDialogPinQuery>(std::move(promise))->send(saved_messages_topic_id, is_pinned);
-}
-
-void SavedMessagesManager::set_pinned_saved_messages_topics(vector<SavedMessagesTopicId> saved_messages_topic_ids,
-                                                            Promise<Unit> &&promise) {
-  for (const auto &saved_messages_topic_id : saved_messages_topic_ids) {
-    TRY_STATUS_PROMISE(promise, saved_messages_topic_id.is_valid_status(td_));
-    if (get_topic(saved_messages_topic_id) == nullptr) {
-      return promise.set_error(Status::Error(400, "Can't find Saved Messages topic"));
-    }
-  }
-  if (!topic_list_.are_pinned_saved_messages_topics_inited_) {
-    return promise.set_error(Status::Error(400, "Pinned Saved Messages topics must be loaded first"));
-  }
-  if (static_cast<size_t>(get_pinned_saved_messages_topic_limit()) < saved_messages_topic_ids.size()) {
-    return promise.set_error(Status::Error(400, "The maximum number of pinned chats exceeded"));
-  }
-  if (!set_pinned_saved_messages_topics(saved_messages_topic_ids)) {
-    return promise.set_value(Unit());
-  }
-  td_->create_handler<ReorderPinnedSavedDialogsQuery>(std::move(promise))->send(std::move(saved_messages_topic_ids));
-}
-
-void SavedMessagesManager::reload_pinned_saved_messages_topics() {
-  if (td_->auth_manager_->is_bot()) {
-    // just in case
-    return;
-  }
-  if (!topic_list_.are_pinned_saved_messages_topics_inited_) {
-    return;
-  }
-
-  get_pinned_saved_dialogs(0, Auto());
-}
-
-void SavedMessagesManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (topic_list_.sent_total_count_ != -1) {
-    updates.push_back(get_update_saved_messages_topic_count_object());
-  }
-
-  for (const auto &it : saved_messages_topics_) {
-    const auto *topic = it.second.get();
-    updates.push_back(get_update_saved_messages_topic_object(topic));
-  }
-}
-
-const SavedMessagesManager::TopicDate SavedMessagesManager::MIN_TOPIC_DATE{std::numeric_limits<int64>::max(),
-                                                                           SavedMessagesTopicId()};
-const SavedMessagesManager::TopicDate SavedMessagesManager::MAX_TOPIC_DATE{0, SavedMessagesTopicId()};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SavedMessagesManager.h b/third-party/td/td/td/telegram/SavedMessagesManager.h
deleted file mode 100644
index 78bce7e8d1..0000000000
--- a/third-party/td/td/td/telegram/SavedMessagesManager.h
+++ /dev/null
@@ -1,204 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesInfo.h"
-#include "td/telegram/SavedMessagesTopicId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <limits>
-#include <set>
-
-namespace td {
-
-class Td;
-
-class SavedMessagesManager final : public Actor {
- public:
-  SavedMessagesManager(Td *td, ActorShared<> parent);
-
-  SavedMessagesTopicId get_topic_id(int64 topic_id) const;
-
-  vector<SavedMessagesTopicId> get_topic_ids(const vector<int64> &topic_ids) const;
-
-  int64 get_saved_messages_topic_id_object(SavedMessagesTopicId saved_messages_topic_id);
-
-  void set_topic_last_message_id(SavedMessagesTopicId saved_messages_topic_id, MessageId last_message_id,
-                                 int32 last_message_date);
-
-  void on_topic_message_updated(SavedMessagesTopicId saved_messages_topic_id, MessageId message_id);
-
-  void on_topic_message_deleted(SavedMessagesTopicId saved_messages_topic_id, MessageId message_id);
-
-  void on_topic_draft_message_updated(SavedMessagesTopicId saved_messages_topic_id, int32 draft_message_date);
-
-  void load_saved_messages_topics(int32 limit, Promise<Unit> &&promsie);
-
-  void on_get_saved_messages_topics(bool is_pinned, int32 limit,
-                                    telegram_api::object_ptr<telegram_api::messages_SavedDialogs> &&saved_dialogs_ptr,
-                                    Promise<Unit> &&promise);
-
-  void get_saved_messages_topic_history(SavedMessagesTopicId saved_messages_topic_id, MessageId from_message_id,
-                                        int32 offset, int32 limit,
-                                        Promise<td_api::object_ptr<td_api::messages>> &&promise);
-
-  void delete_saved_messages_topic_history(SavedMessagesTopicId saved_messages_topic_id, Promise<Unit> &&promise);
-
-  void get_saved_messages_topic_message_by_date(SavedMessagesTopicId saved_messages_topic_id, int32 date,
-                                                Promise<td_api::object_ptr<td_api::message>> &&promise);
-
-  void delete_saved_messages_topic_messages_by_date(SavedMessagesTopicId saved_messages_topic_id, int32 min_date,
-                                                    int32 max_date, Promise<Unit> &&promise);
-
-  void toggle_saved_messages_topic_is_pinned(SavedMessagesTopicId saved_messages_topic_id, bool is_pinned,
-                                             Promise<Unit> &&promise);
-
-  void set_pinned_saved_messages_topics(vector<SavedMessagesTopicId> saved_messages_topic_ids, Promise<Unit> &&promise);
-
-  void reload_pinned_saved_messages_topics();
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  static constexpr int32 MAX_GET_HISTORY = 100;  // server side limit
-
-  static constexpr int64 MIN_PINNED_TOPIC_ORDER = static_cast<int64>(2147000000) << 32;
-
-  struct SavedMessagesTopic {
-    SavedMessagesTopicId saved_messages_topic_id_;
-    MessageId last_message_id_;
-    int32 last_message_date_ = 0;
-    int32 draft_message_date_ = 0;
-    int64 pinned_order_ = 0;
-    int64 private_order_ = 0;
-    bool is_changed_ = false;
-  };
-
-  class TopicDate {
-    int64 order_;
-    SavedMessagesTopicId topic_id_;
-
-   public:
-    TopicDate(int64 order, SavedMessagesTopicId topic_id) : order_(order), topic_id_(topic_id) {
-    }
-
-    bool operator<(const TopicDate &other) const {
-      return order_ > other.order_ ||
-             (order_ == other.order_ && topic_id_.get_unique_id() > other.topic_id_.get_unique_id());
-    }
-
-    bool operator<=(const TopicDate &other) const {
-      return order_ > other.order_ ||
-             (order_ == other.order_ && topic_id_.get_unique_id() >= other.topic_id_.get_unique_id());
-    }
-
-    bool operator==(const TopicDate &other) const {
-      return order_ == other.order_ && topic_id_ == other.topic_id_;
-    }
-
-    bool operator!=(const TopicDate &other) const {
-      return !(*this == other);
-    }
-
-    SavedMessagesTopicId get_topic_id() const {
-      return topic_id_;
-    }
-  };
-
-  static const TopicDate MIN_TOPIC_DATE;
-  static const TopicDate MAX_TOPIC_DATE;
-
-  struct TopicList {
-    int32 server_total_count_ = -1;
-    int32 sent_total_count_ = -1;
-
-    vector<SavedMessagesTopicId> pinned_saved_messages_topic_ids_;
-    bool are_pinned_saved_messages_topics_inited_ = false;
-
-    std::set<TopicDate> ordered_topics_;
-
-    TopicDate last_topic_date_ = MIN_TOPIC_DATE;  // in memory
-
-    vector<Promise<Unit>> load_pinned_queries_;
-    vector<Promise<Unit>> load_queries_;
-
-    int32 offset_date_ = std::numeric_limits<int32>::max();
-    DialogId offset_dialog_id_;
-    MessageId offset_message_id_;
-  };
-
-  void tear_down() final;
-
-  SavedMessagesTopic *get_topic(SavedMessagesTopicId saved_messages_topic_id);
-
-  SavedMessagesTopic *add_topic(SavedMessagesTopicId saved_messages_topic_id);
-
-  void get_pinned_saved_dialogs(int32 limit, Promise<Unit> &&promise);
-
-  void on_get_pinned_saved_dialogs(Result<Unit> &&result);
-
-  void get_saved_dialogs(int32 limit, Promise<Unit> &&promise);
-
-  void on_get_saved_dialogs(Result<Unit> &&result);
-
-  void on_get_saved_messages_topic_history(SavedMessagesTopicId saved_messages_topic_id, MessageId from_message_id,
-                                           Result<MessagesInfo> &&r_info,
-                                           Promise<td_api::object_ptr<td_api::messages>> &&promise);
-
-  void do_set_topic_last_message_id(SavedMessagesTopic *topic, MessageId last_message_id, int32 last_message_date);
-
-  int64 get_next_pinned_saved_messages_topic_order();
-
-  bool set_pinned_saved_messages_topics(vector<SavedMessagesTopicId> added_saved_messages_topic_ids);
-
-  bool set_saved_messages_topic_is_pinned(SavedMessagesTopicId saved_messages_topic_id, bool is_pinned,
-                                          const char *source);
-
-  bool set_saved_messages_topic_is_pinned(SavedMessagesTopic *topic, bool is_pinned, const char *source);
-
-  int32 get_pinned_saved_messages_topic_limit() const;
-
-  int64 get_topic_order(int32 message_date, MessageId message_id);
-
-  int64 get_topic_public_order(const SavedMessagesTopic *topic) const;
-
-  void set_last_topic_date(TopicDate topic_date);
-
-  void on_topic_changed(SavedMessagesTopic *topic, const char *source);
-
-  td_api::object_ptr<td_api::savedMessagesTopic> get_saved_messages_topic_object(const SavedMessagesTopic *topic) const;
-
-  td_api::object_ptr<td_api::updateSavedMessagesTopic> get_update_saved_messages_topic_object(
-      const SavedMessagesTopic *topic) const;
-
-  void send_update_saved_messages_topic(const SavedMessagesTopic *topic, const char *source) const;
-
-  td_api::object_ptr<td_api::updateSavedMessagesTopicCount> get_update_saved_messages_topic_count_object() const;
-
-  void update_saved_messages_topic_sent_total_count(const char *source);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  FlatHashMap<SavedMessagesTopicId, unique_ptr<SavedMessagesTopic>, SavedMessagesTopicIdHash> saved_messages_topics_;
-
-  int64 current_pinned_saved_messages_topic_order_ = MIN_PINNED_TOPIC_ORDER;
-
-  TopicList topic_list_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SavedMessagesTopicId.cpp b/third-party/td/td/td/telegram/SavedMessagesTopicId.cpp
deleted file mode 100644
index 2334bab92f..0000000000
--- a/third-party/td/td/td/telegram/SavedMessagesTopicId.cpp
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SavedMessagesTopicId.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessageForwardInfo.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-namespace td {
-
-static constexpr DialogId HIDDEN_AUTHOR_DIALOG_ID = DialogId(static_cast<int64>(2666000));
-
-SavedMessagesTopicId::SavedMessagesTopicId(DialogId my_dialog_id, const MessageForwardInfo *message_forward_info,
-                                           DialogId real_forward_from_dialog_id) {
-  if (message_forward_info != nullptr) {
-    auto last_dialog_id = message_forward_info->get_last_dialog_id();
-    if (last_dialog_id.is_valid()) {
-      dialog_id_ = last_dialog_id;
-      return;
-    }
-    if (real_forward_from_dialog_id != DialogId() && message_forward_info->has_last_sender_name()) {
-      if (real_forward_from_dialog_id.get_type() == DialogType::User) {
-        dialog_id_ = HIDDEN_AUTHOR_DIALOG_ID;
-      } else {
-        dialog_id_ = real_forward_from_dialog_id;
-      }
-      return;
-    }
-    auto from_dialog_id = message_forward_info->get_origin().get_sender();
-    if (from_dialog_id.is_valid()) {
-      dialog_id_ = my_dialog_id;
-      return;
-    }
-    if (message_forward_info->get_origin().is_sender_hidden()) {
-      dialog_id_ = HIDDEN_AUTHOR_DIALOG_ID;
-      return;
-    }
-  }
-  dialog_id_ = my_dialog_id;
-}
-
-td_api::object_ptr<td_api::SavedMessagesTopicType> SavedMessagesTopicId::get_saved_messages_topic_type_object(
-    const Td *td) const {
-  if (dialog_id_ == DialogId()) {
-    return nullptr;
-  }
-  if (dialog_id_ == td->dialog_manager_->get_my_dialog_id()) {
-    return td_api::make_object<td_api::savedMessagesTopicTypeMyNotes>();
-  }
-  if (is_author_hidden()) {
-    td->user_manager_->get_user_id_object(HIDDEN_AUTHOR_DIALOG_ID.get_user_id(), "savedMessagesTopicTypeAuthorHidden");
-    return td_api::make_object<td_api::savedMessagesTopicTypeAuthorHidden>();
-  }
-  return td_api::make_object<td_api::savedMessagesTopicTypeSavedFromChat>(
-      td->dialog_manager_->get_chat_id_object(dialog_id_, "savedMessagesTopicTypeSavedFromChat"));
-}
-
-bool SavedMessagesTopicId::have_input_peer(Td *td) const {
-  if (dialog_id_.get_type() == DialogType::SecretChat ||
-      !td->dialog_manager_->have_dialog_info_force(dialog_id_, "SavedMessagesTopicId::have_input_peer")) {
-    return false;
-  }
-  return td->dialog_manager_->have_input_peer(dialog_id_, false, AccessRights::Know);
-}
-
-Status SavedMessagesTopicId::is_valid_status(Td *td) const {
-  if (!dialog_id_.is_valid()) {
-    return Status::Error(400, "Invalid Saved Messages topic specified");
-  }
-  if (!have_input_peer(td)) {
-    return Status::Error(400, "Unknown Saved Messages topic specified");
-  }
-  return Status::OK();
-}
-
-Status SavedMessagesTopicId::is_valid_in(Td *td, DialogId dialog_id) const {
-  if (dialog_id_ != DialogId()) {
-    if (dialog_id != td->dialog_manager_->get_my_dialog_id()) {
-      return Status::Error(400, "Can't use Saved Messages topic in the chat");
-    }
-    if (!have_input_peer(td)) {
-      return Status::Error(400, "Unknown Saved Messages topic specified");
-    }
-  }
-  return Status::OK();
-}
-
-bool SavedMessagesTopicId::is_author_hidden() const {
-  return dialog_id_ == HIDDEN_AUTHOR_DIALOG_ID;
-}
-
-telegram_api::object_ptr<telegram_api::InputPeer> SavedMessagesTopicId::get_input_peer(const Td *td) const {
-  return td->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Know);
-}
-
-telegram_api::object_ptr<telegram_api::InputDialogPeer> SavedMessagesTopicId::get_input_dialog_peer(
-    const Td *td) const {
-  return telegram_api::make_object<telegram_api::inputDialogPeer>(get_input_peer(td));
-}
-
-void SavedMessagesTopicId::add_dependencies(Dependencies &dependencies) const {
-  if (is_author_hidden()) {
-    dependencies.add_dialog_dependencies(dialog_id_);
-  } else {
-    dependencies.add_dialog_and_dependencies(dialog_id_);
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, SavedMessagesTopicId saved_messages_topic_id) {
-  if (!saved_messages_topic_id.dialog_id_.is_valid()) {
-    return string_builder << "[no Saved Messages topic]";
-  }
-  if (saved_messages_topic_id.is_author_hidden()) {
-    return string_builder << "[Author Hidden topic]";
-  }
-  return string_builder << "[topic of " << saved_messages_topic_id.dialog_id_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SavedMessagesTopicId.h b/third-party/td/td/td/telegram/SavedMessagesTopicId.h
deleted file mode 100644
index e08c7cba62..0000000000
--- a/third-party/td/td/td/telegram/SavedMessagesTopicId.h
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class MessageForwardInfo;
-class Td;
-
-class SavedMessagesTopicId {
-  DialogId dialog_id_;
-
-  friend struct SavedMessagesTopicIdHash;
-
-  friend bool operator==(const SavedMessagesTopicId &lhs, const SavedMessagesTopicId &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, SavedMessagesTopicId saved_messages_topic_id);
-
-  bool have_input_peer(Td *td) const;
-
- public:
-  SavedMessagesTopicId() = default;
-
-  explicit SavedMessagesTopicId(DialogId dialog_id) : dialog_id_(dialog_id) {
-  }
-
-  SavedMessagesTopicId(DialogId my_dialog_id, const MessageForwardInfo *message_forward_info,
-                       DialogId real_forward_from_dialog_id);
-
-  bool is_valid() const {
-    return dialog_id_.is_valid();
-  }
-
-  Status is_valid_status(Td *td) const;
-
-  Status is_valid_in(Td *td, DialogId dialog_id) const;
-
-  bool is_author_hidden() const;
-
-  int64 get_unique_id() const {
-    return dialog_id_.get();
-  }
-
-  td_api::object_ptr<td_api::SavedMessagesTopicType> get_saved_messages_topic_type_object(const Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::InputPeer> get_input_peer(const Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::InputDialogPeer> get_input_dialog_peer(const Td *td) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    dialog_id_.store(storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    dialog_id_.parse(parser);
-  }
-};
-
-struct SavedMessagesTopicIdHash {
-  uint32 operator()(SavedMessagesTopicId saved_messages_topic_id) const {
-    return DialogIdHash()(saved_messages_topic_id.dialog_id_);
-  }
-};
-
-inline bool operator==(const SavedMessagesTopicId &lhs, const SavedMessagesTopicId &rhs) {
-  return lhs.dialog_id_ == rhs.dialog_id_;
-}
-
-inline bool operator!=(const SavedMessagesTopicId &lhs, const SavedMessagesTopicId &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, SavedMessagesTopicId saved_messages_topic_id);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ScheduledServerMessageId.h b/third-party/td/td/td/telegram/ScheduledServerMessageId.h
deleted file mode 100644
index 202fa26cba..0000000000
--- a/third-party/td/td/td/telegram/ScheduledServerMessageId.h
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class ScheduledServerMessageId {
-  int32 id = 0;
-
- public:
-  ScheduledServerMessageId() = default;
-
-  explicit constexpr ScheduledServerMessageId(int32 message_id) : id(message_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  ScheduledServerMessageId(T message_id) = delete;
-
-  bool is_valid() const {
-    return id > 0 && id < (1 << 18);
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const ScheduledServerMessageId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const ScheduledServerMessageId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_int();
-  }
-};
-
-struct ScheduledServerMessageIdHash {
-  uint32 operator()(ScheduledServerMessageId message_id) const {
-    return Hash<int32>()(message_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, ScheduledServerMessageId message_id) {
-  return string_builder << "scheduled server message " << message_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ScopeNotificationSettings.cpp b/third-party/td/td/td/telegram/ScopeNotificationSettings.cpp
deleted file mode 100644
index 4541d1fd15..0000000000
--- a/third-party/td/td/td/telegram/ScopeNotificationSettings.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ScopeNotificationSettings.h"
-
-#include "td/telegram/Global.h"
-
-#include <limits>
-
-namespace td {
-
-telegram_api::object_ptr<telegram_api::inputPeerNotifySettings>
-ScopeNotificationSettings::get_input_peer_notify_settings() const {
-  int32 flags = telegram_api::inputPeerNotifySettings::MUTE_UNTIL_MASK |
-                telegram_api::inputPeerNotifySettings::SHOW_PREVIEWS_MASK |
-                telegram_api::inputPeerNotifySettings::STORIES_HIDE_SENDER_MASK;
-  if (sound != nullptr) {
-    flags |= telegram_api::inputPeerNotifySettings::SOUND_MASK;
-  }
-  if (story_sound != nullptr) {
-    flags |= telegram_api::inputPeerNotifySettings::STORIES_SOUND_MASK;
-  }
-  if (!use_default_mute_stories) {
-    flags |= telegram_api::inputPeerNotifySettings::STORIES_MUTED_MASK;
-  }
-  return telegram_api::make_object<telegram_api::inputPeerNotifySettings>(
-      flags, show_preview, false, mute_until, get_input_notification_sound(sound), mute_stories, hide_story_sender,
-      get_input_notification_sound(story_sound));
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ScopeNotificationSettings &notification_settings) {
-  return string_builder << "[" << notification_settings.mute_until << ", " << notification_settings.sound << ", "
-                        << notification_settings.show_preview << ", " << notification_settings.use_default_mute_stories
-                        << ", " << notification_settings.mute_stories << ", " << notification_settings.story_sound
-                        << ", " << notification_settings.hide_story_sender << ", "
-                        << notification_settings.is_synchronized << ", "
-                        << notification_settings.disable_pinned_message_notifications << ", "
-                        << notification_settings.disable_mention_notifications << "]";
-}
-
-td_api::object_ptr<td_api::scopeNotificationSettings> get_scope_notification_settings_object(
-    const ScopeNotificationSettings *notification_settings) {
-  CHECK(notification_settings != nullptr);
-  return td_api::make_object<td_api::scopeNotificationSettings>(
-      max(0, notification_settings->mute_until - G()->unix_time()),
-      get_notification_sound_ringtone_id(notification_settings->sound), notification_settings->show_preview,
-      notification_settings->use_default_mute_stories, notification_settings->mute_stories,
-      get_notification_sound_ringtone_id(notification_settings->story_sound), !notification_settings->hide_story_sender,
-      notification_settings->disable_pinned_message_notifications,
-      notification_settings->disable_mention_notifications);
-}
-
-static int32 get_mute_until(int32 mute_for) {
-  if (mute_for <= 0) {
-    return 0;
-  }
-
-  const int32 MAX_PRECISE_MUTE_FOR = 366 * 86400;
-  int32 current_time = G()->unix_time();
-  if (mute_for > MAX_PRECISE_MUTE_FOR || mute_for >= std::numeric_limits<int32>::max() - current_time) {
-    return std::numeric_limits<int32>::max();
-  }
-  return mute_for + current_time;
-}
-
-Result<ScopeNotificationSettings> get_scope_notification_settings(
-    td_api::object_ptr<td_api::scopeNotificationSettings> &&notification_settings) {
-  if (notification_settings == nullptr) {
-    return Status::Error(400, "New notification settings must be non-empty");
-  }
-
-  auto mute_until = get_mute_until(notification_settings->mute_for_);
-  return ScopeNotificationSettings(
-      mute_until, get_notification_sound(false, notification_settings->sound_id_), notification_settings->show_preview_,
-      notification_settings->use_default_mute_stories_, notification_settings->mute_stories_,
-      get_notification_sound(false, notification_settings->story_sound_id_), !notification_settings->show_story_sender_,
-      notification_settings->disable_pinned_message_notifications_,
-      notification_settings->disable_mention_notifications_);
-}
-
-ScopeNotificationSettings get_scope_notification_settings(tl_object_ptr<telegram_api::peerNotifySettings> &&settings,
-                                                          bool old_disable_pinned_message_notifications,
-                                                          bool old_disable_mention_notifications) {
-  if (settings == nullptr) {
-    return ScopeNotificationSettings();
-  }
-  auto mute_until = settings->mute_until_;
-  if (mute_until <= G()->unix_time()) {
-    mute_until = 0;
-  }
-  auto show_preview = settings->show_previews_;
-  auto use_default_mute_stories = (settings->flags_ & telegram_api::peerNotifySettings::STORIES_MUTED_MASK) == 0;
-  auto mute_stories = settings->stories_muted_;
-  auto hide_story_sender = settings->stories_hide_sender_;
-  return {mute_until,
-          get_notification_sound(settings.get(), false),
-          show_preview,
-          use_default_mute_stories,
-          mute_stories,
-          get_notification_sound(settings.get(), true),
-          hide_story_sender,
-          old_disable_pinned_message_notifications,
-          old_disable_mention_notifications};
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ScopeNotificationSettings.h b/third-party/td/td/td/telegram/ScopeNotificationSettings.h
deleted file mode 100644
index 7a6ef16715..0000000000
--- a/third-party/td/td/td/telegram/ScopeNotificationSettings.h
+++ /dev/null
@@ -1,67 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/NotificationSound.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ScopeNotificationSettings {
- public:
-  int32 mute_until = 0;
-  unique_ptr<NotificationSound> sound;
-  unique_ptr<NotificationSound> story_sound;
-  bool show_preview = true;
-  bool use_default_mute_stories = true;
-  bool mute_stories = false;
-  bool hide_story_sender = false;
-  bool is_synchronized = false;
-
-  // local settings
-  bool disable_pinned_message_notifications = false;
-  bool disable_mention_notifications = false;
-
-  ScopeNotificationSettings() = default;
-
-  ScopeNotificationSettings(int32 mute_until, unique_ptr<NotificationSound> &&sound, bool show_preview,
-                            bool use_default_mute_stories, bool mute_stories,
-                            unique_ptr<NotificationSound> &&story_sound, bool hide_story_sender,
-                            bool disable_pinned_message_notifications, bool disable_mention_notifications)
-      : mute_until(mute_until)
-      , sound(std::move(sound))
-      , story_sound(std::move(story_sound))
-      , show_preview(show_preview)
-      , use_default_mute_stories(use_default_mute_stories)
-      , mute_stories(mute_stories)
-      , hide_story_sender(hide_story_sender)
-      , is_synchronized(true)
-      , disable_pinned_message_notifications(disable_pinned_message_notifications)
-      , disable_mention_notifications(disable_mention_notifications) {
-  }
-
-  telegram_api::object_ptr<telegram_api::inputPeerNotifySettings> get_input_peer_notify_settings() const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const ScopeNotificationSettings &notification_settings);
-
-td_api::object_ptr<td_api::scopeNotificationSettings> get_scope_notification_settings_object(
-    const ScopeNotificationSettings *notification_settings);
-
-Result<ScopeNotificationSettings> get_scope_notification_settings(
-    td_api::object_ptr<td_api::scopeNotificationSettings> &&notification_settings);
-
-ScopeNotificationSettings get_scope_notification_settings(tl_object_ptr<telegram_api::peerNotifySettings> &&settings,
-                                                          bool old_disable_pinned_message_notifications,
-                                                          bool old_disable_mention_notifications);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ScopeNotificationSettings.hpp b/third-party/td/td/td/telegram/ScopeNotificationSettings.hpp
deleted file mode 100644
index bf451e8392..0000000000
--- a/third-party/td/td/td/telegram/ScopeNotificationSettings.hpp
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Global.h"
-#include "td/telegram/NotificationSound.h"
-#include "td/telegram/ScopeNotificationSettings.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const ScopeNotificationSettings &notification_settings, StorerT &storer) {
-  bool is_muted = notification_settings.mute_until != 0 && notification_settings.mute_until > G()->unix_time();
-  bool has_sound = notification_settings.sound != nullptr;
-  bool has_ringtone_support = true;
-  bool has_story_sound = notification_settings.story_sound != nullptr;
-  bool use_mute_stories = !notification_settings.use_default_mute_stories;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_muted);
-  STORE_FLAG(has_sound);
-  STORE_FLAG(notification_settings.show_preview);
-  STORE_FLAG(false);
-  STORE_FLAG(notification_settings.is_synchronized);
-  STORE_FLAG(notification_settings.disable_pinned_message_notifications);
-  STORE_FLAG(notification_settings.disable_mention_notifications);
-  STORE_FLAG(has_ringtone_support);
-  STORE_FLAG(notification_settings.mute_stories);
-  STORE_FLAG(has_story_sound);
-  STORE_FLAG(notification_settings.hide_story_sender);
-  STORE_FLAG(use_mute_stories);
-  END_STORE_FLAGS();
-  if (is_muted) {
-    store(notification_settings.mute_until, storer);
-  }
-  if (has_sound) {
-    store(notification_settings.sound, storer);
-  }
-  if (has_story_sound) {
-    store(notification_settings.story_sound, storer);
-  }
-}
-
-template <class ParserT>
-void parse(ScopeNotificationSettings &notification_settings, ParserT &parser) {
-  bool is_muted;
-  bool has_sound;
-  bool silent_send_message_ignored;
-  bool has_ringtone_support;
-  bool has_story_sound;
-  bool use_mute_stories;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_muted);
-  PARSE_FLAG(has_sound);
-  PARSE_FLAG(notification_settings.show_preview);
-  PARSE_FLAG(silent_send_message_ignored);
-  PARSE_FLAG(notification_settings.is_synchronized);
-  PARSE_FLAG(notification_settings.disable_pinned_message_notifications);
-  PARSE_FLAG(notification_settings.disable_mention_notifications);
-  PARSE_FLAG(has_ringtone_support);
-  PARSE_FLAG(notification_settings.mute_stories);
-  PARSE_FLAG(has_story_sound);
-  PARSE_FLAG(notification_settings.hide_story_sender);
-  PARSE_FLAG(use_mute_stories);
-  END_PARSE_FLAGS();
-  (void)silent_send_message_ignored;
-  if (is_muted) {
-    parse(notification_settings.mute_until, parser);
-  }
-  if (has_sound) {
-    if (has_ringtone_support) {
-      parse_notification_sound(notification_settings.sound, parser);
-    } else {
-      string sound;
-      parse(sound, parser);
-      notification_settings.sound = get_legacy_notification_sound(sound);
-    }
-  }
-  if (has_story_sound) {
-    parse_notification_sound(notification_settings.story_sound, parser);
-  }
-  notification_settings.use_default_mute_stories = !use_mute_stories;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretChatActor.cpp b/third-party/td/td/td/telegram/SecretChatActor.cpp
deleted file mode 100644
index 138b2b88f5..0000000000
--- a/third-party/td/td/td/telegram/SecretChatActor.cpp
+++ /dev/null
@@ -1,2255 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SecretChatActor.h"
-
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/secret_api.hpp"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/telegram_api.hpp"
-#include "td/telegram/UniqueId.h"
-
-#include "td/mtproto/PacketInfo.h"
-#include "td/mtproto/PacketStorer.h"
-#include "td/mtproto/Transport.h"
-#include "td/mtproto/utils.h"
-
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/binlog/BinlogInterface.h"
-
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/as.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_parsers.h"
-
-#include <array>
-#include <tuple>
-#include <type_traits>
-
-//#define G GLOBAL_SHOULD_NOT_BE_USED_HERE
-#undef G
-
-namespace td {
-
-class SecretImpl {
- public:
-  explicit SecretImpl(const Storer &data) : data(data) {
-  }
-  template <class StorerT>
-  void do_store(StorerT &storer) const {
-    storer.store_binary(static_cast<int32>(data.size()));
-    storer.store_storer(data);
-  }
-
- private:
-  const Storer &data;
-};
-
-SecretChatActor::SecretChatActor(int32 id, unique_ptr<Context> context, bool can_be_empty)
-    : context_(std::move(context)), can_be_empty_(can_be_empty) {
-  auth_state_.id = id;
-}
-
-template <class T>
-NetQueryPtr SecretChatActor::create_net_query(QueryType type, const T &function) {
-  return context_->net_query_creator().create(UniqueId::next(UniqueId::Type::Default, static_cast<uint8>(type)),
-                                              nullptr, function, {}, DcId::main(), NetQuery::Type::Common,
-                                              NetQuery::AuthFlag::On);
-}
-
-void SecretChatActor::update_chat(telegram_api::object_ptr<telegram_api::EncryptedChat> chat) {
-  if (close_flag_) {
-    return;
-  }
-  check_status(on_update_chat(std::move(chat)));
-  loop();
-}
-
-void SecretChatActor::create_chat(UserId user_id, int64 user_access_hash, int32 random_id,
-                                  Promise<SecretChatId> promise) {
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Empty) {
-    promise.set_error(Status::Error(500, "Bad random_id"));
-    check_status(Status::Error("Unexpected request_chat"));
-    loop();
-    return;
-  }
-
-  auto event = make_unique<log_event::CreateSecretChat>();
-  event->user_id = user_id;
-  event->user_access_hash = user_access_hash;
-  event->random_id = random_id;
-  event->set_log_event_id(binlog_add(context_->binlog(), LogEvent::HandlerType::SecretChats, create_storer(*event)));
-  do_create_chat_impl(std::move(event));
-  promise.set_value(SecretChatId(random_id));
-  loop();
-}
-
-void SecretChatActor::on_result_resendable(NetQueryPtr net_query, Promise<NetQueryPtr> promise) {
-  LOG(INFO) << "In on_result_resendable: " << net_query << " " << close_flag_;
-  if (context_->close_flag()) {
-    return;
-  }
-
-  auto key = UniqueId::extract_key(net_query->id());
-  if (close_flag_) {
-    if (key == static_cast<uint8>(QueryType::DiscardEncryption)) {
-      discard_encryption_promise_.set_value(Unit());
-    }
-    return;
-  }
-  check_status([&] {
-    switch (key) {
-      case static_cast<uint8>(QueryType::DhConfig):
-        return on_dh_config(std::move(net_query));
-      case static_cast<uint8>(QueryType::EncryptedChat):
-        return on_update_chat(std::move(net_query));
-      case static_cast<uint8>(QueryType::Message):
-        on_outbound_send_message_result(std::move(net_query), std::move(promise));
-        return Status::OK();
-      case static_cast<uint8>(QueryType::ReadHistory):
-        return on_read_history(std::move(net_query));
-      case static_cast<uint8>(QueryType::Ignore):
-        return Status::OK();
-      default:
-        UNREACHABLE();
-        return Status::OK();
-    }
-  }());
-
-  loop();
-}
-
-void SecretChatActor::replay_close_chat(unique_ptr<log_event::CloseSecretChat> event) {
-  do_close_chat_impl(event->delete_history, event->is_already_discarded, event->log_event_id(), Promise<Unit>());
-}
-
-void SecretChatActor::replay_create_chat(unique_ptr<log_event::CreateSecretChat> event) {
-  if (close_flag_) {
-    return;
-  }
-  do_create_chat_impl(std::move(event));
-}
-
-void SecretChatActor::add_inbound_message(unique_ptr<log_event::InboundSecretMessage> message) {
-  SCOPE_EXIT {
-    if (message) {
-      message->promise.set_value(Unit());
-    }
-  };
-  if (close_flag_) {
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    LOG(ERROR) << "Ignore unexpected update: " << tag("message", *message);
-    return;
-  }
-  check_status(do_inbound_message_encrypted(std::move(message)));
-  loop();
-}
-
-void SecretChatActor::replay_inbound_message(unique_ptr<log_event::InboundSecretMessage> message) {
-  if (close_flag_) {
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    LOG(ERROR) << "Ignore unexpected replay inbound message: " << tag("message", *message);
-    return;
-  }
-
-  CHECK(!binlog_replay_finish_flag_);
-  CHECK(message->decrypted_message_layer);  // from binlog
-  if (message->is_pending) {                // wait for gaps?
-    // check_status(do_inbound_message_decrypted_unchecked(std::move(message)), -1);
-    do_inbound_message_decrypted_pending(std::move(message));
-  } else {  // just replay
-    LOG_CHECK(message->message_id > last_binlog_message_id_)
-        << tag("last_binlog_message_id", last_binlog_message_id_) << tag("message_id", message->message_id);
-    last_binlog_message_id_ = message->message_id;
-    check_status(do_inbound_message_decrypted(std::move(message)));
-  }
-  loop();
-}
-
-void SecretChatActor::replay_outbound_message(unique_ptr<log_event::OutboundSecretMessage> message) {
-  if (close_flag_) {
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    LOG(ERROR) << "Ignore unexpected replay outbound message: " << tag("message", *message);
-    return;
-  }
-  CHECK(!binlog_replay_finish_flag_);
-  LOG_CHECK(message->message_id > last_binlog_message_id_)
-      << tag("last_binlog_message_id", last_binlog_message_id_) << tag("message_id", message->message_id);
-  last_binlog_message_id_ = message->message_id;
-  do_outbound_message_impl(std::move(message), Promise<>());
-  loop();
-}
-
-// NB: my_seq_no is just after message is sent, i.e. my_out_seq_no is already incremented
-Result<BufferSlice> SecretChatActor::create_encrypted_message(int32 my_in_seq_no, int32 my_out_seq_no,
-                                                              tl_object_ptr<secret_api::DecryptedMessage> &message) {
-  mtproto::AuthKey *auth_key = &pfs_state_.auth_key;
-  auto in_seq_no = my_in_seq_no * 2 + auth_state_.x;
-  auto out_seq_no = my_out_seq_no * 2 - 1 - auth_state_.x;
-
-  auto layer = current_layer();
-  BufferSlice random_bytes(31);
-  Random::secure_bytes(random_bytes.as_mutable_slice().ubegin(), random_bytes.size());
-  auto message_with_layer = secret_api::make_object<secret_api::decryptedMessageLayer>(
-      std::move(random_bytes), layer, in_seq_no, out_seq_no, std::move(message));
-  LOG(INFO) << "Create message " << to_string(message_with_layer);
-  auto storer = TLObjectStorer<secret_api::decryptedMessageLayer>(*message_with_layer);
-  auto new_storer = mtproto::PacketStorer<SecretImpl>(storer);
-  mtproto::PacketInfo packet_info;
-  packet_info.type = mtproto::PacketInfo::EndToEnd;
-  packet_info.version = 2;
-  packet_info.is_creator = auth_state_.x == 0;
-  auto packet_writer = mtproto::Transport::write(new_storer, *auth_key, &packet_info);
-  message = std::move(message_with_layer->message_);
-  return packet_writer.as_buffer_slice();
-}
-
-void SecretChatActor::send_message(tl_object_ptr<secret_api::DecryptedMessage> message,
-                                   telegram_api::object_ptr<telegram_api::InputEncryptedFile> file, Promise<> promise) {
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  send_message_impl(std::move(message), std::move(file), SendFlag::External | SendFlag::Push, std::move(promise));
-}
-
-void SecretChatActor::send_message_impl(tl_object_ptr<secret_api::DecryptedMessage> message,
-                                        telegram_api::object_ptr<telegram_api::InputEncryptedFile> file, int32 flags,
-                                        Promise<> promise) {
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    LOG(ERROR) << "Ignore send_message: " << tag("message", to_string(message)) << tag("file", to_string(file));
-    return promise.set_error(Status::Error(400, "Chat is not accessible"));
-  }
-  LOG_CHECK(binlog_replay_finish_flag_) << "Trying to send message before binlog replay is finished: "
-                                        << to_string(*message) << to_string(file);
-  int64 random_id = 0;
-  downcast_call(*message, [&](auto &x) { random_id = x.random_id_; });
-
-  auto it = random_id_to_outbound_message_state_token_.find(random_id);
-  if (it != random_id_to_outbound_message_state_token_.end()) {
-    return on_outbound_outer_send_message_promise(it->second, std::move(promise));
-  }
-
-  auto binlog_event = make_unique<log_event::OutboundSecretMessage>();
-  binlog_event->chat_id = auth_state_.id;
-  binlog_event->random_id = random_id;
-  binlog_event->file = log_event::EncryptedInputFile::from_input_encrypted_file(file);
-  binlog_event->message_id = seq_no_state_.message_id + 1;
-  binlog_event->my_in_seq_no = seq_no_state_.my_in_seq_no;
-  binlog_event->my_out_seq_no = seq_no_state_.my_out_seq_no + 1;
-  binlog_event->his_in_seq_no = seq_no_state_.his_in_seq_no;
-  binlog_event->encrypted_message =
-      create_encrypted_message(binlog_event->my_in_seq_no, binlog_event->my_out_seq_no, message).move_as_ok();
-  binlog_event->need_notify_user = (flags & SendFlag::Push) == 0;
-  binlog_event->is_external = (flags & SendFlag::External) != 0;
-  binlog_event->is_silent = (message->get_id() == secret_api::decryptedMessage::ID &&
-                             (static_cast<const secret_api::decryptedMessage *>(message.get())->flags_ &
-                              secret_api::decryptedMessage::SILENT_MASK) != 0);
-  if (message->get_id() == secret_api::decryptedMessageService::ID) {
-    binlog_event->is_rewritable = false;
-    auto service_message = move_tl_object_as<secret_api::decryptedMessageService>(message);
-    binlog_event->action = std::move(service_message->action_);
-  } else {
-    binlog_event->is_rewritable = true;
-  }
-
-  do_outbound_message_impl(std::move(binlog_event), std::move(promise));
-}
-
-void SecretChatActor::send_message_action(tl_object_ptr<secret_api::SendMessageAction> action) {
-  if (close_flag_) {
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    LOG(ERROR) << "Ignore send_message_action: " << tag("message", to_string(action));
-    return;
-  }
-  bool flag = action->get_id() != secret_api::sendMessageCancelAction::ID;
-
-  auto net_query =
-      create_net_query(QueryType::Ignore, telegram_api::messages_setEncryptedTyping(get_input_chat(), flag));
-  if (!set_typing_query_.empty()) {
-    LOG(INFO) << "Cancel previous set typing query";
-    cancel_query(set_typing_query_);
-  }
-  set_typing_query_ = net_query.get_weak();
-  context_->send_net_query(std::move(net_query), actor_shared(this), false);
-}
-
-void SecretChatActor::send_read_history(int32 date, Promise<> promise) {
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    LOG(ERROR) << "Ignore send_read_history: " << tag("date", date);
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return;
-  }
-
-  if (date <= last_read_history_date_) {
-    return promise.set_value(Unit());
-  }
-
-  if (read_history_promise_) {
-    LOG(INFO) << "Cancel previous read history request in secret chat " << auth_state_.id;
-    read_history_promise_.set_value(Unit());
-    cancel_query(read_history_query_);
-  }
-
-  auto net_query =
-      create_net_query(QueryType::ReadHistory, telegram_api::messages_readEncryptedHistory(get_input_chat(), date));
-  read_history_query_ = net_query.get_weak();
-  last_read_history_date_ = date;
-  read_history_promise_ = std::move(promise);
-  LOG(INFO) << "Send read history request with date " << date << " in secret chat " << auth_state_.id;
-  context_->send_net_query(std::move(net_query), actor_shared(this), false);
-}
-
-void SecretChatActor::send_open_message(int64 random_id, Promise<> promise) {
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return;
-  }
-  std::vector<int64> random_ids{random_id};
-  send_action(make_tl_object<secret_api::decryptedMessageActionReadMessages>(std::move(random_ids)), SendFlag::Push,
-              std::move(promise));
-}
-
-void SecretChatActor::delete_message(int64 random_id, Promise<> promise) {
-  if (auth_state_.state == State::Closed) {
-    promise.set_value(Unit());
-    return;
-  }
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return;
-  }
-  return delete_messages(std::vector<int64>{random_id}, std::move(promise));
-}
-
-void SecretChatActor::delete_messages(std::vector<int64> random_ids, Promise<> promise) {
-  if (auth_state_.state == State::Closed) {
-    promise.set_value(Unit());
-    return;
-  }
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return;
-  }
-  send_action(make_tl_object<secret_api::decryptedMessageActionDeleteMessages>(std::move(random_ids)), SendFlag::Push,
-              std::move(promise));
-}
-void SecretChatActor::delete_all_messages(Promise<> promise) {
-  if (auth_state_.state == State::Closed) {
-    promise.set_value(Unit());
-    return;
-  }
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return;
-  }
-  send_action(make_tl_object<secret_api::decryptedMessageActionFlushHistory>(), SendFlag::Push, std::move(promise));
-}
-
-void SecretChatActor::notify_screenshot_taken(Promise<> promise) {
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return;
-  }
-  send_action(make_tl_object<secret_api::decryptedMessageActionScreenshotMessages>(vector<int64>()), SendFlag::Push,
-              std::move(promise));
-}
-
-void SecretChatActor::send_set_ttl_message(int32 ttl, int64 random_id, Promise<> promise) {
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  if (auth_state_.state != State::Ready) {
-    promise.set_error(Status::Error(400, "Can't access the chat"));
-    return;
-  }
-  send_message_impl(secret_api::make_object<secret_api::decryptedMessageService>(
-                        random_id, make_tl_object<secret_api::decryptedMessageActionSetMessageTTL>(ttl)),
-                    nullptr, SendFlag::External | SendFlag::Push, std::move(promise));
-}
-
-void SecretChatActor::send_action(tl_object_ptr<secret_api::DecryptedMessageAction> action, int32 flags,
-                                  Promise<> promise) {
-  send_message_impl(
-      secret_api::make_object<secret_api::decryptedMessageService>(Random::secure_int64(), std::move(action)), nullptr,
-      flags, std::move(promise));
-}
-
-void SecretChatActor::binlog_replay_finish() {
-  on_his_in_seq_no_updated();
-  LOG(INFO) << "Binlog replay is finished with SeqNoState " << seq_no_state_;
-  LOG(INFO) << "Binlog replay is finished with PfsState " << pfs_state_;
-  binlog_replay_finish_flag_ = true;
-  if (auth_state_.state == State::Ready) {
-    auto my_layer = static_cast<int32>(SecretChatLayer::Current);
-    if (config_state_.my_layer < my_layer) {
-      send_action(secret_api::make_object<secret_api::decryptedMessageActionNotifyLayer>(my_layer), SendFlag::None,
-                  Promise<>());
-    }
-  }
-  yield();
-}
-
-void SecretChatActor::loop() {
-  if (close_flag_) {
-    return;
-  }
-  if (!binlog_replay_finish_flag_) {
-    return;
-  }
-
-  check_status(do_loop());
-}
-
-Status SecretChatActor::do_loop() {
-  TRY_STATUS(run_auth());
-  run_pfs();
-  run_fill_gaps();
-  return Status::OK();
-}
-
-void SecretChatActor::on_send_message_ack(int64 random_id) {
-  context_->on_send_message_ack(random_id);
-}
-
-Status SecretChatActor::on_delete_messages(const std::vector<int64> &random_ids) {
-  for (auto random_id : random_ids) {
-    auto it = random_id_to_outbound_message_state_token_.find(random_id);
-    if (it == random_id_to_outbound_message_state_token_.end()) {
-      continue;
-    }
-    auto state_id = it->second;
-    TRY_STATUS(outbound_rewrite_with_empty(state_id));
-  }
-  return Status::OK();
-}
-
-Status SecretChatActor::on_flush_history(int32 last_message_id) {
-  std::vector<uint64> to_rewrite;
-  outbound_message_states_.for_each([&](auto state_id, auto &state) {
-    if (state.message->message_id < last_message_id && state.message->is_rewritable) {
-      to_rewrite.push_back(state_id);
-    }
-  });
-  for (auto state_id : to_rewrite) {
-    TRY_STATUS(outbound_rewrite_with_empty(state_id));
-  }
-  return Status::OK();
-}
-
-Status SecretChatActor::run_auth() {
-  switch (auth_state_.state) {
-    case State::Empty:
-      return Status::OK();
-    case State::SendRequest: {
-      if (!auth_state_.handshake.has_config()) {
-        return Status::OK();
-      }
-      // messages.requestEncryption#f64daf43 user_id:InputUser random_id:int g_a:bytes = EncryptedChat;
-      auto query = create_net_query(QueryType::EncryptedChat, telegram_api::messages_requestEncryption(
-                                                                  get_input_user(), auth_state_.random_id,
-                                                                  BufferSlice(auth_state_.handshake.get_g_b())));
-      context_->send_net_query(std::move(query), actor_shared(this), false);
-      auth_state_.state = State::WaitRequestResponse;
-      return Status::OK();
-    }
-    case State::SendAccept: {
-      if (!auth_state_.handshake.has_config()) {
-        return Status::OK();
-      }
-      TRY_STATUS(auth_state_.handshake.run_checks(true, context_->dh_callback()));
-      auto id_and_key = auth_state_.handshake.gen_key();
-      pfs_state_.auth_key = mtproto::AuthKey(id_and_key.first, std::move(id_and_key.second));
-      calc_key_hash();
-      // messages.acceptEncryption#3dbc0415 peer:InputEncryptedChat g_b:bytes key_fingerprint:long = EncryptedChat;
-      auto query = create_net_query(
-          QueryType::EncryptedChat,
-          telegram_api::messages_acceptEncryption(get_input_chat(), BufferSlice(auth_state_.handshake.get_g_b()),
-                                                  pfs_state_.auth_key.id()));
-      context_->send_net_query(std::move(query), actor_shared(this), false);
-      auth_state_.state = State::WaitAcceptResponse;
-      return Status::OK();
-    }
-    default:
-      break;
-  }
-  return Status::OK();
-}
-
-void SecretChatActor::run_fill_gaps() {
-  // replay messages
-  while (true) {
-    if (pending_inbound_messages_.empty()) {
-      break;
-    }
-    auto begin = pending_inbound_messages_.begin();
-    auto next_seq_no = begin->first;
-    if (next_seq_no <= seq_no_state_.my_in_seq_no) {
-      LOG(INFO) << "Replay pending event: " << tag("seq_no", next_seq_no);
-      auto message = std::move(begin->second);
-      pending_inbound_messages_.erase(begin);
-      check_status(do_inbound_message_decrypted_unchecked(std::move(message), -1));
-      CHECK(pending_inbound_messages_.count(next_seq_no) == 0);
-    } else {
-      break;
-    }
-  }
-
-  if (pending_inbound_messages_.empty()) {
-    return;
-  }
-
-  auto start_seq_no = seq_no_state_.my_in_seq_no;
-  auto finish_seq_no = pending_inbound_messages_.begin()->first - 1;
-  LOG(INFO) << tag("start_seq_no", start_seq_no) << tag("finish_seq_no", finish_seq_no)
-            << tag("resend_end_seq_no", seq_no_state_.resend_end_seq_no);
-  CHECK(start_seq_no <= finish_seq_no);
-  if (seq_no_state_.resend_end_seq_no >= finish_seq_no) {
-    return;
-  }
-  CHECK(seq_no_state_.resend_end_seq_no < start_seq_no);
-
-  start_seq_no = start_seq_no * 2 + auth_state_.x;
-  finish_seq_no = finish_seq_no * 2 + auth_state_.x;
-
-  send_action(secret_api::make_object<secret_api::decryptedMessageActionResend>(start_seq_no, finish_seq_no),
-              SendFlag::None, Promise<>());
-}
-
-void SecretChatActor::run_pfs() {
-  while (true) {
-    LOG(INFO) << "Run PFS loop: " << pfs_state_;
-    if (pfs_state_.state == PfsState::Empty &&
-        (pfs_state_.last_message_id + 100 < seq_no_state_.message_id ||
-         pfs_state_.last_timestamp + 60 * 60 * 24 * 7 < Time::now()) &&
-        pfs_state_.other_auth_key.empty()) {
-      LOG(INFO) << "Request new key";
-      request_new_key();
-    }
-    switch (pfs_state_.state) {
-      case PfsState::SendRequest: {
-        // shouldn't wait, pfs_state is already saved explicitly
-        pfs_state_.state = PfsState::WaitSendRequest;  // don't save it!
-        send_action(secret_api::make_object<secret_api::decryptedMessageActionRequestKey>(
-                        pfs_state_.exchange_id, BufferSlice(pfs_state_.handshake.get_g_b())),
-                    SendFlag::None, Promise<>());
-        break;
-      }
-      case PfsState::SendCommit: {
-        // must wait till pfs_state is saved to binlog. Otherwise, we may save ActionCommit to binlog without pfs_state,
-        // which has the new auth_key.
-        if (saved_pfs_state_message_id_ < pfs_state_.wait_message_id) {
-          return;
-        }
-
-        // TODO: wait till gaps are filled???
-        pfs_state_.state = PfsState::WaitSendCommit;  // don't save it
-        send_action(secret_api::make_object<secret_api::decryptedMessageActionCommitKey>(
-                        pfs_state_.exchange_id, static_cast<int64>(pfs_state_.other_auth_key.id())),
-                    SendFlag::None, Promise<>());
-
-        break;
-      }
-      case PfsState::SendAccept: {
-        if (saved_pfs_state_message_id_ < pfs_state_.wait_message_id) {
-          return;
-        }
-
-        pfs_state_.state = PfsState::WaitSendAccept;  // don't save it
-        send_action(secret_api::make_object<secret_api::decryptedMessageActionAcceptKey>(
-                        pfs_state_.exchange_id, BufferSlice(pfs_state_.handshake.get_g_b()),
-                        static_cast<int64>(pfs_state_.other_auth_key.id())),
-                    SendFlag::None, Promise<>());
-
-        break;
-      }
-      default:
-        return;
-    }
-  }
-}
-
-void SecretChatActor::check_status(Status status) {
-  if (status.is_error()) {
-    if (status.code() == 1) {
-      LOG(WARNING) << "Non-fatal error: " << status;
-    } else {
-      on_fatal_error(std::move(status), false);
-    }
-  }
-}
-
-void SecretChatActor::on_fatal_error(Status status, bool is_expected) {
-  if (!is_expected) {
-    LOG(ERROR) << "Fatal error: " << status;
-  }
-  cancel_chat(false, false, Promise<>());
-}
-
-void SecretChatActor::cancel_chat(bool delete_history, bool is_already_discarded, Promise<> promise) {
-  if (close_flag_) {
-    promise.set_value(Unit());
-    return;
-  }
-  close_flag_ = true;
-
-  std::vector<log_event::LogEvent::Id> to_delete;
-  outbound_message_states_.for_each(
-      [&](auto state_id, auto &state) { to_delete.push_back(state.message->log_event_id()); });
-  inbound_message_states_.for_each([&](auto state_id, auto &state) { to_delete.push_back(state.log_event_id); });
-
-  // TODO: It must be a transaction
-  for (auto id : to_delete) {
-    binlog_erase(context_->binlog(), id);
-  }
-  if (create_log_event_id_ != 0) {
-    binlog_erase(context_->binlog(), create_log_event_id_);
-    create_log_event_id_ = 0;
-  }
-
-  auto event = make_unique<log_event::CloseSecretChat>();
-  event->chat_id = auth_state_.id;
-  auto log_event_id = binlog_add(context_->binlog(), LogEvent::HandlerType::SecretChats, create_storer(*event));
-
-  auto on_sync = PromiseCreator::lambda([actor_id = actor_id(this), delete_history, is_already_discarded, log_event_id,
-                                         promise = std::move(promise)](Result<Unit> result) mutable {
-    if (result.is_ok()) {
-      send_closure(actor_id, &SecretChatActor::do_close_chat_impl, delete_history, is_already_discarded, log_event_id,
-                   std::move(promise));
-    } else {
-      promise.set_error(result.error().clone());
-      send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(), "cancel_chat");
-    }
-  });
-
-  context_->binlog()->force_sync(std::move(on_sync), "cancel_chat");
-  yield();
-}
-
-void SecretChatActor::do_close_chat_impl(bool delete_history, bool is_already_discarded, uint64 log_event_id,
-                                         Promise<Unit> &&promise) {
-  close_flag_ = true;
-  auth_state_.state = State::Closed;
-  context_->secret_chat_db()->set_value(auth_state_);
-  context_->secret_chat_db()->erase_value(config_state_);
-  context_->secret_chat_db()->erase_value(pfs_state_);
-  context_->secret_chat_db()->erase_value(seq_no_state_);
-
-  MultiPromiseActorSafe mpas{"CloseSecretChatMultiPromiseActor"};
-  mpas.add_promise(
-      PromiseCreator::lambda([actor_id = actor_id(this), log_event_id, promise = std::move(promise)](Unit) mutable {
-        send_closure(actor_id, &SecretChatActor::on_closed, log_event_id, std::move(promise));
-      }));
-
-  auto lock = mpas.get_promise();
-
-  if (delete_history) {
-    context_->on_flush_history(true, MessageId::max(), mpas.get_promise());
-  }
-
-  send_update_secret_chat();
-
-  if (!is_already_discarded) {
-    int32 flags = 0;
-    if (delete_history) {
-      flags |= telegram_api::messages_discardEncryption::DELETE_HISTORY_MASK;
-    }
-    auto query = create_net_query(QueryType::DiscardEncryption,
-                                  telegram_api::messages_discardEncryption(flags, false /*ignored*/, auth_state_.id));
-    query->total_timeout_limit_ = 60 * 60 * 24 * 365;
-    context_->send_net_query(std::move(query), actor_shared(this), true);
-    discard_encryption_promise_ = mpas.get_promise();
-  }
-
-  lock.set_value(Unit());
-}
-
-void SecretChatActor::on_closed(uint64 log_event_id, Promise<Unit> &&promise) {
-  CHECK(close_flag_);
-  if (context_->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Finish closing";
-  context_->secret_chat_db()->erase_value(auth_state_);
-  binlog_erase(context_->binlog(), log_event_id);
-  promise.set_value(Unit());
-  // skip flush
-  stop();
-}
-
-void SecretChatActor::do_create_chat_impl(unique_ptr<log_event::CreateSecretChat> event) {
-  LOG(INFO) << *event;
-  CHECK(event->random_id == auth_state_.id);
-  create_log_event_id_ = event->log_event_id();
-
-  if (auth_state_.state == State::Empty) {
-    auth_state_.user_id = event->user_id;
-    auth_state_.user_access_hash = event->user_access_hash;
-    auth_state_.random_id = event->random_id;
-    auth_state_.state = State::SendRequest;
-    auth_state_.x = 0;
-    auth_state_.date = context_->unix_time();
-    send_update_secret_chat();
-  } else if (auth_state_.state == State::SendRequest) {
-  } else if (auth_state_.state == State::WaitRequestResponse) {
-  } else {
-    binlog_erase(context_->binlog(), create_log_event_id_);
-    create_log_event_id_ = 0;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::inputUser> SecretChatActor::get_input_user() {
-  return telegram_api::make_object<telegram_api::inputUser>(auth_state_.user_id.get(), auth_state_.user_access_hash);
-}
-telegram_api::object_ptr<telegram_api::inputEncryptedChat> SecretChatActor::get_input_chat() {
-  return telegram_api::make_object<telegram_api::inputEncryptedChat>(auth_state_.id, auth_state_.access_hash);
-}
-void SecretChatActor::tear_down() {
-  LOG(INFO) << "SecretChatActor: tear_down";
-  // TODO notify send update that we are dead
-}
-
-Result<std::tuple<uint64, BufferSlice, int32>> SecretChatActor::decrypt(BufferSlice &encrypted_message) {
-  MutableSlice data = encrypted_message.as_mutable_slice();
-  CHECK(is_aligned_pointer<4>(data.data()));
-  TRY_RESULT(auth_key_id, mtproto::Transport::read_auth_key_id(data));
-  mtproto::AuthKey *auth_key = nullptr;
-  if (auth_key_id == pfs_state_.auth_key.id()) {
-    auth_key = &pfs_state_.auth_key;
-  } else if (auth_key_id == pfs_state_.other_auth_key.id()) {
-    auth_key = &pfs_state_.other_auth_key;
-  } else {
-    return Status::Error(1, PSLICE() << "Unknown " << tag("auth_key_id", format::as_hex(auth_key_id))
-                                     << tag("crc", crc64(encrypted_message.as_slice())));
-  }
-
-  std::array<int, 2> versions{{2, 1}};
-  BufferSlice encrypted_message_copy;
-  int32 mtproto_version = -1;
-  Result<mtproto::Transport::ReadResult> r_read_result;
-  for (size_t i = 0; i < versions.size(); i++) {
-    encrypted_message_copy = encrypted_message.copy();
-    data = encrypted_message_copy.as_mutable_slice();
-    CHECK(is_aligned_pointer<4>(data.data()));
-
-    mtproto::PacketInfo packet_info;
-    packet_info.type = mtproto::PacketInfo::EndToEnd;
-    mtproto_version = versions[i];
-    packet_info.version = mtproto_version;
-    packet_info.is_creator = auth_state_.x == 0;
-    r_read_result = mtproto::Transport::read(data, *auth_key, &packet_info);
-    if (i + 1 != versions.size() && r_read_result.is_error()) {
-      if (config_state_.his_layer >= static_cast<int32>(SecretChatLayer::Mtproto2)) {
-        LOG(WARNING) << tag("mtproto", mtproto_version) << " decryption failed " << r_read_result.error();
-      }
-      continue;
-    }
-    break;
-  }
-  TRY_RESULT(read_result, std::move(r_read_result));
-  switch (read_result.type()) {
-    case mtproto::Transport::ReadResult::Quickack:
-      return Status::Error("Receive quickack instead of a message");
-    case mtproto::Transport::ReadResult::Error:
-      return Status::Error(PSLICE() << "Receive MTProto error code instead of a message: " << read_result.error());
-    case mtproto::Transport::ReadResult::Nop:
-      return Status::Error("Receive nop instead of a message");
-    case mtproto::Transport::ReadResult::Packet:
-      data = read_result.packet();
-      break;
-    default:
-      UNREACHABLE();
-  }
-
-  int32 len = as<int32>(data.begin());
-  data = data.substr(4, len);
-  if (!is_aligned_pointer<4>(data.data())) {
-    return std::make_tuple(auth_key_id, BufferSlice(data), mtproto_version);
-  } else {
-    return std::make_tuple(auth_key_id, encrypted_message_copy.from_slice(data), mtproto_version);
-  }
-}
-
-Status SecretChatActor::do_inbound_message_encrypted(unique_ptr<log_event::InboundSecretMessage> message) {
-  SCOPE_EXIT {
-    if (message) {
-      message->promise.set_value(Unit());
-    }
-  };
-  TRY_RESULT(decrypted, decrypt(message->encrypted_message));
-  auto auth_key_id = std::get<0>(decrypted);
-  auto data_buffer = std::move(std::get<1>(decrypted));
-  auto mtproto_version = std::get<2>(decrypted);
-  message->auth_key_id = auth_key_id;
-
-  TlBufferParser parser(&data_buffer);
-  auto id = parser.fetch_int();
-  Status status;
-  if (id == secret_api::decryptedMessageLayer::ID) {
-    auto message_with_layer = secret_api::decryptedMessageLayer::fetch(parser);
-    parser.fetch_end();
-    if (!parser.get_error()) {
-      auto layer = message_with_layer->layer_;
-      if (layer < static_cast<int32>(SecretChatLayer::Default) &&
-          false /* old Android app could send such messages */) {
-        LOG(ERROR) << "Layer " << layer << " is not supported, drop message " << to_string(message_with_layer);
-        return Status::OK();
-      }
-      if (config_state_.his_layer < layer) {
-        config_state_.his_layer = layer;
-        context_->secret_chat_db()->set_value(config_state_);
-        send_update_secret_chat();
-      }
-      if (layer >= static_cast<int32>(SecretChatLayer::Mtproto2) && mtproto_version < 2) {
-        return Status::Error("MTProto 1.0 encryption is forbidden for this layer");
-      }
-      if (message_with_layer->in_seq_no_ < 0) {
-        return Status::Error(PSLICE() << "Invalid seq_no: " << to_string(message_with_layer));
-      }
-      message->decrypted_message_layer = std::move(message_with_layer);
-      return do_inbound_message_decrypted_unchecked(std::move(message), mtproto_version);
-    } else {
-      status = Status::Error(PSLICE() << parser.get_error() << format::as_hex_dump<4>(data_buffer.as_slice()));
-    }
-  } else {
-    status = Status::Error(PSLICE() << "Unknown constructor " << format::as_hex(id));
-  }
-
-  // support for older layer
-  LOG(WARNING) << "Failed to fetch update: " << status;
-  send_action(secret_api::make_object<secret_api::decryptedMessageActionNotifyLayer>(
-                  static_cast<int32>(SecretChatLayer::Current)),
-              SendFlag::None, Promise<>());
-
-  if (config_state_.his_layer == 8) {
-    TlBufferParser new_parser(&data_buffer);
-    auto message_without_layer = secret_api::DecryptedMessage::fetch(new_parser);
-    parser.fetch_end();
-    if (!new_parser.get_error()) {
-      message->decrypted_message_layer = secret_api::make_object<secret_api::decryptedMessageLayer>(
-          BufferSlice(), config_state_.his_layer, -1, -1, std::move(message_without_layer));
-      return do_inbound_message_decrypted_unchecked(std::move(message), mtproto_version);
-    }
-    LOG(ERROR) << "Failed to fetch update (DecryptedMessage): " << new_parser.get_error()
-               << format::as_hex_dump<4>(data_buffer.as_slice());
-  }
-
-  return status;
-}
-
-Status SecretChatActor::check_seq_no(int in_seq_no, int out_seq_no, int32 his_layer) {
-  if (in_seq_no < 0) {
-    return Status::OK();
-  }
-  if (in_seq_no % 2 != (1 - auth_state_.x) || out_seq_no % 2 != auth_state_.x) {
-    return Status::Error("Bad seq_no parity");
-  }
-  in_seq_no /= 2;
-  out_seq_no /= 2;
-  if (out_seq_no < seq_no_state_.my_in_seq_no) {
-    return Status::Error(1, "Old seq_no");
-  }
-  if (out_seq_no > seq_no_state_.my_in_seq_no) {
-    return Status::Error(2, "Gap found!");
-  }
-  if (in_seq_no < seq_no_state_.his_in_seq_no) {
-    return Status::Error("in_seq_no is not monotonic");
-  }
-  if (seq_no_state_.my_out_seq_no < in_seq_no) {
-    return Status::Error("in_seq_no is bigger than seq_no_state_.my_out_seq_no");
-  }
-  if (his_layer < seq_no_state_.his_layer) {
-    return Status::Error("his_layer is not monotonic");
-  }
-
-  return Status::OK();
-}
-
-Status SecretChatActor::do_inbound_message_decrypted_unchecked(unique_ptr<log_event::InboundSecretMessage> message,
-                                                               int32 mtproto_version) {
-  SCOPE_EXIT {
-    CHECK(message == nullptr || !message->promise);
-  };
-  auto in_seq_no = message->decrypted_message_layer->in_seq_no_;
-  auto out_seq_no = message->decrypted_message_layer->out_seq_no_;
-  auto status = check_seq_no(in_seq_no, out_seq_no, message->his_layer());
-  if (status.is_error() && status.code() != 2 /* not gap found */) {
-    message->promise.set_value(Unit());
-    if (message->log_event_id()) {
-      LOG(INFO) << "Erase binlog event: " << tag("log_event_id", message->log_event_id());
-      binlog_erase(context_->binlog(), message->log_event_id());
-    }
-    auto warning_message = PSTRING() << status << tag("seq_no_state_.my_in_seq_no", seq_no_state_.my_in_seq_no)
-                                     << tag("seq_no_state_.my_out_seq_no", seq_no_state_.my_out_seq_no)
-                                     << tag("seq_no_state_.his_in_seq_no", seq_no_state_.his_in_seq_no)
-                                     << tag("in_seq_no", in_seq_no) << tag("out_seq_no", out_seq_no)
-                                     << to_string(message->decrypted_message_layer);
-    if (status.code()) {
-      LOG(WARNING) << warning_message;
-    } else {
-      LOG(ERROR) << warning_message;
-    }
-    return status;
-  }
-
-  LOG(INFO) << "Receive message encrypted with MTProto " << mtproto_version << ": "
-            << to_string(message->decrypted_message_layer);
-
-  if (message->decrypted_message_layer->message_->get_id() == secret_api::decryptedMessageService8::ID) {
-    auto old = move_tl_object_as<secret_api::decryptedMessageService8>(message->decrypted_message_layer->message_);
-    message->decrypted_message_layer->message_ =
-        secret_api::make_object<secret_api::decryptedMessageService>(old->random_id_, std::move(old->action_));
-  }
-
-  // Process ActionResend.
-  if (message->decrypted_message_layer->message_->get_id() == secret_api::decryptedMessageService::ID) {
-    auto *decrypted_message_service =
-        static_cast<secret_api::decryptedMessageService *>(message->decrypted_message_layer->message_.get());
-    if (decrypted_message_service->action_->get_id() == secret_api::decryptedMessageActionResend::ID) {
-      auto *action_resend =
-          static_cast<secret_api::decryptedMessageActionResend *>(decrypted_message_service->action_.get());
-
-      auto start_seq_no = static_cast<uint32>(action_resend->start_seq_no_ / 2);
-      auto finish_seq_no = static_cast<uint32>(action_resend->end_seq_no_ / 2);
-      if (start_seq_no + MAX_RESEND_COUNT < finish_seq_no) {
-        message->promise.set_value(Unit());
-        return Status::Error("Can't resend too many messages");
-      }
-      LOG(INFO) << "ActionResend: " << tag("start", start_seq_no) << tag("finish_seq_no", finish_seq_no);
-      for (auto seq_no = start_seq_no; seq_no <= finish_seq_no; seq_no++) {
-        auto it = out_seq_no_to_outbound_message_state_token_.find(seq_no);
-        if (it == out_seq_no_to_outbound_message_state_token_.end()) {
-          message->promise.set_value(Unit());
-          return Status::Error(PSLICE() << "Can't resend query " << tag("seq_no", seq_no));
-        }
-        auto state_id = it->second;
-        outbound_resend(state_id);
-      }
-      // It is ok to replace action with Noop, because it won't be written to binlog before message is marked unsent
-      decrypted_message_service->action_ = secret_api::make_object<secret_api::decryptedMessageActionNoop>();
-    }
-  }
-
-  if (status.is_error()) {
-    CHECK(status.code() == 2);  // gap found
-    do_inbound_message_decrypted_pending(std::move(message));
-    return Status::OK();
-  }
-
-  message->message_id = seq_no_state_.message_id + 1;
-  if (in_seq_no != -1) {
-    message->my_in_seq_no = out_seq_no / 2 + 1;
-    message->my_out_seq_no = seq_no_state_.my_out_seq_no;
-    message->his_in_seq_no = in_seq_no / 2;
-  }
-
-  return do_inbound_message_decrypted(std::move(message));
-}
-
-void SecretChatActor::do_outbound_message_impl(unique_ptr<log_event::OutboundSecretMessage> binlog_event,
-                                               Promise<> promise) {
-  binlog_event->crc = crc64(binlog_event->encrypted_message.as_slice());
-  LOG(INFO) << "Do outbound message: " << *binlog_event << tag("crc", binlog_event->crc);
-  auto &state_id_ref = random_id_to_outbound_message_state_token_[binlog_event->random_id];
-  LOG_CHECK(state_id_ref == 0) << "Random ID collision";
-  state_id_ref = outbound_message_states_.create();
-  const uint64 state_id = state_id_ref;
-  auto *state = outbound_message_states_.get(state_id);
-  LOG(INFO) << tag("state_id", state_id);
-  CHECK(state);
-  state->message = std::move(binlog_event);
-
-  // OutboundSecretMessage
-  //
-  // 1. [] => Save log_event. [save_log_event]
-  // 2. [save_log_event] => Save SeqNoState [save_changes]
-  // 3. [save_log_event] => Send NetQuery [send_message]
-  //   Note: we have to force binlog to flush
-  // 4.0 [send_message]:Fail => rewrite
-  // 4. [save_changes; send_message] => Mark log event as sent [rewrite_log_event]
-  // 5. [save_changes; send_message; ack] => [remove_log_event]
-
-  auto message = state->message.get();
-
-  // send_message
-  auto send_message_start = PromiseCreator::lambda([actor_id = actor_id(this), state_id](Result<> result) {
-    if (result.is_ok()) {
-      send_closure(actor_id, &SecretChatActor::on_outbound_send_message_start, state_id);
-    } else {
-      send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(),
-                   "on_outbound_send_message_start");
-    }
-  });
-
-  // update seq_no
-  update_seq_no_state(*message);
-
-  // process action
-  if (message->action) {
-    on_outbound_action(*message->action, message->message_id);
-  }
-
-  // save_changes
-  auto save_changes_finish = PromiseCreator::lambda([actor_id = actor_id(this), state_id](Result<> result) {
-    if (result.is_ok()) {
-      send_closure(actor_id, &SecretChatActor::on_outbound_save_changes_finish, state_id);
-    } else {
-      send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(),
-                   "on_outbound_save_chages_finish");
-    }
-  });
-
-  auto save_changes_start = add_changes(std::move(save_changes_finish));
-
-  // wait for ack
-  auto out_seq_no = state->message->my_out_seq_no - 1;
-  if (out_seq_no < seq_no_state_.his_in_seq_no) {
-    state->ack_flag = true;
-  } else {
-    out_seq_no_to_outbound_message_state_token_[out_seq_no] = state_id;
-  }
-
-  // save_log_event => [send_message; save_changes]
-  auto save_log_event_finish = PromiseCreator::join(std::move(send_message_start), std::move(save_changes_start));
-
-  auto log_event_id = state->message->log_event_id();
-  if (log_event_id == 0) {
-    log_event_id = binlog_add(context_->binlog(), LogEvent::HandlerType::SecretChats, create_storer(*state->message));
-    LOG(INFO) << "Outbound secret message [save_log_event] start " << tag("log_event_id", log_event_id);
-    context_->binlog()->force_sync(std::move(save_log_event_finish), "do_outbound_message_impl");
-    state->message->set_log_event_id(log_event_id);
-  } else {
-    LOG(INFO) << "Outbound secret message [save_log_event] skip " << tag("log_event_id", log_event_id);
-    save_log_event_finish.set_value(Unit());
-  }
-  promise.set_value(Unit());  // log event was sent to binlog
-}
-
-void SecretChatActor::on_his_in_seq_no_updated() {
-  auto it = out_seq_no_to_outbound_message_state_token_.begin();
-  while (it != out_seq_no_to_outbound_message_state_token_.end() && it->first < seq_no_state_.his_in_seq_no) {
-    auto token = it->second;
-    it = out_seq_no_to_outbound_message_state_token_.erase(it);
-    on_outbound_ack(token);
-  }
-}
-void SecretChatActor::on_seq_no_state_changed() {
-  seq_no_state_changed_ = true;
-}
-
-void SecretChatActor::on_pfs_state_changed() {
-  LOG(INFO) << "In on_pfs_state_changed: " << pfs_state_;
-  pfs_state_changed_ = true;
-}
-
-Promise<> SecretChatActor::add_changes(Promise<> save_changes_finish) {
-  StateChange change;
-  if (seq_no_state_changed_) {
-    change.seq_no_state_change = SeqNoStateChange(seq_no_state_);
-    seq_no_state_changed_ = false;
-  }
-  if (pfs_state_changed_) {
-    change.pfs_state_change = PfsStateChange(pfs_state_);
-    pfs_state_changed_ = false;
-  }
-
-  change.save_changes_finish = std::move(save_changes_finish);
-  auto save_changes_start_token = changes_processor_.add(std::move(change));
-
-  return PromiseCreator::lambda([actor_id = actor_id(this), save_changes_start_token](Result<> result) {
-    if (result.is_ok()) {
-      send_closure(actor_id, &SecretChatActor::on_save_changes_start, save_changes_start_token);
-    } else {
-      send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(), "on_save_changes_start");
-    }
-  });
-}
-
-template <class T>
-void SecretChatActor::update_seq_no_state(const T &new_seq_no_state) {
-  // Some old updates may arrive. Just ignore them
-  if (seq_no_state_.message_id >= new_seq_no_state.message_id &&
-      seq_no_state_.my_in_seq_no >= new_seq_no_state.my_in_seq_no &&
-      seq_no_state_.my_out_seq_no >= new_seq_no_state.my_out_seq_no &&
-      seq_no_state_.his_in_seq_no >= new_seq_no_state.his_in_seq_no) {
-    return;
-  }
-  seq_no_state_.message_id = new_seq_no_state.message_id;
-  if (new_seq_no_state.my_in_seq_no != -1) {
-    LOG(INFO) << "Have my_in_seq_no: " << seq_no_state_.my_in_seq_no << "--->" << new_seq_no_state.my_in_seq_no;
-    seq_no_state_.my_in_seq_no = new_seq_no_state.my_in_seq_no;
-    seq_no_state_.my_out_seq_no = new_seq_no_state.my_out_seq_no;
-
-    auto new_his_layer = new_seq_no_state.his_layer();
-    if (new_his_layer != -1) {
-      seq_no_state_.his_layer = new_his_layer;
-    }
-
-    if (seq_no_state_.his_in_seq_no != new_seq_no_state.his_in_seq_no) {
-      seq_no_state_.his_in_seq_no = new_seq_no_state.his_in_seq_no;
-      on_his_in_seq_no_updated();
-    }
-  }
-
-  return on_seq_no_state_changed();
-}
-
-void SecretChatActor::do_inbound_message_decrypted_pending(unique_ptr<log_event::InboundSecretMessage> message) {
-  // Just save log event if necessary
-  auto log_event_id = message->log_event_id();
-
-  // QTS
-  auto qts_promise = std::move(message->promise);
-
-  if (log_event_id == 0) {
-    message->is_pending = true;
-    message->set_log_event_id(binlog_add(context_->binlog(), LogEvent::HandlerType::SecretChats,
-                                         create_storer(*message), std::move(qts_promise)));
-    LOG(INFO) << "Inbound PENDING secret message [save_log_event] start (do not expect finish) "
-              << tag("log_event_id", message->log_event_id());
-  } else {
-    LOG(INFO) << "Inbound PENDING secret message [save_log_event] skip " << tag("log_event_id", log_event_id);
-    CHECK(!qts_promise);
-  }
-  LOG(INFO) << "Inbound PENDING secret message start " << tag("log_event_id", log_event_id) << tag("message", *message);
-
-  auto seq_no = message->decrypted_message_layer->out_seq_no_ / 2;
-  pending_inbound_messages_[seq_no] = std::move(message);
-}
-
-Status SecretChatActor::do_inbound_message_decrypted(unique_ptr<log_event::InboundSecretMessage> message) {
-  // InboundSecretMessage
-  //
-  // 1. [] => Add log event. [save_log_event]
-  // 2. [save_log_event] => Save SeqNoState [save_changes]
-  // 3. [save_log_event] => Add message to MessageManager [save_message]
-  //    Note: if we are able to add message by random_id, we may not wait for (log event). Otherwise, we should force
-  //    binlog flush.
-  // 4. [save_log_event] => Update QTS [qts]
-  // 5. [save_changes; save_message; ?qts) => Remove log event [remove_log_event]
-  //    Note: It is easier not to wait for QTS. In the worst case old update will be handled again after restart.
-
-  auto state_id = inbound_message_states_.create();
-  InboundMessageState &state = *inbound_message_states_.get(state_id);
-
-  // save log event
-  auto log_event_id = message->log_event_id();
-  bool need_sync = false;
-  if (log_event_id == 0) {
-    log_event_id = binlog_add(context_->binlog(), LogEvent::HandlerType::SecretChats, create_storer(*message));
-    LOG(INFO) << "Inbound secret message [save_log_event] start " << tag("log_event_id", log_event_id);
-    need_sync = true;
-  } else {
-    if (message->is_pending) {
-      message->is_pending = false;
-      auto old_log_event_id = log_event_id;
-      log_event_id = binlog_add(context_->binlog(), LogEvent::HandlerType::SecretChats, create_storer(*message));
-      binlog_erase(context_->binlog(), old_log_event_id);
-      LOG(INFO) << "Inbound secret message [save_log_event] rewrite (after pending state) "
-                << tag("log_event_id", log_event_id) << tag("old_log_event_id", old_log_event_id);
-      need_sync = true;
-    } else {
-      LOG(INFO) << "Inbound secret message [save_log_event] skip " << tag("log_event_id", log_event_id);
-    }
-  }
-  LOG(INFO) << "Inbound secret message start " << tag("log_event_id", log_event_id) << tag("message", *message);
-  state.log_event_id = log_event_id;
-
-  // save_message
-  auto save_message_finish = PromiseCreator::lambda([actor_id = actor_id(this), state_id](Result<> result) {
-    if (result.is_ok()) {
-      send_closure(actor_id, &SecretChatActor::on_inbound_save_message_finish, state_id);
-    } else {
-      send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(),
-                   "on_inbound_save_message_finish");
-    }
-  });
-
-  // update seq_no
-  update_seq_no_state(*message);
-
-  // drop old key
-  if (!pfs_state_.other_auth_key.empty() && message->auth_key_id == pfs_state_.auth_key.id() &&
-      pfs_state_.can_forget_other_key) {
-    LOG(INFO) << "Drop old auth key " << tag("auth_key_id", format::as_hex(pfs_state_.other_auth_key.id()));
-    pfs_state_.other_auth_key = mtproto::AuthKey();
-    on_pfs_state_changed();
-  }
-
-  // QTS
-  auto qts_promise = std::move(message->promise);
-
-  // process message
-  if (message->decrypted_message_layer->message_->get_id() == secret_api::decryptedMessage46::ID) {
-    auto old = move_tl_object_as<secret_api::decryptedMessage46>(message->decrypted_message_layer->message_);
-    old->flags_ &= ~secret_api::decryptedMessage::GROUPED_ID_MASK;  // just in case
-    message->decrypted_message_layer->message_ = secret_api::make_object<secret_api::decryptedMessage>(
-        old->flags_, false /*ignored*/, old->random_id_, old->ttl_, std::move(old->message_), std::move(old->media_),
-        std::move(old->entities_), std::move(old->via_bot_name_), old->reply_to_random_id_, 0);
-  }
-  if (message->decrypted_message_layer->message_->get_id() == secret_api::decryptedMessageService8::ID) {
-    auto old = move_tl_object_as<secret_api::decryptedMessageService8>(message->decrypted_message_layer->message_);
-    message->decrypted_message_layer->message_ =
-        secret_api::make_object<secret_api::decryptedMessageService>(old->random_id_, std::move(old->action_));
-  }
-
-  // NB: message is invalid after this 'move_as'
-  // Send update through context_
-  // Note, that update may be sent multiple times and should be somehow protected from replay.
-  // Luckily all updates seems to be idempotent.
-  // We could use ChangesProcessor to mark log event as sent to context_, but I don't see any advantages of this
-  // approach.
-  if (message->decrypted_message_layer->message_->get_id() == secret_api::decryptedMessage::ID) {
-    auto decrypted_message =
-        move_tl_object_as<secret_api::decryptedMessage>(message->decrypted_message_layer->message_);
-    context_->on_inbound_message(get_user_id(), MessageId(ServerMessageId(message->message_id)), message->date,
-                                 std::move(message->file), std::move(decrypted_message),
-                                 std::move(save_message_finish));
-  } else if (message->decrypted_message_layer->message_->get_id() == secret_api::decryptedMessageService::ID) {
-    auto decrypted_message_service =
-        move_tl_object_as<secret_api::decryptedMessageService>(message->decrypted_message_layer->message_);
-
-    auto action = std::move(decrypted_message_service->action_);
-    switch (action->get_id()) {
-      case secret_api::decryptedMessageActionDeleteMessages::ID:
-        // Corresponding log event won't be deleted before promise returned by add_changes is set.
-        context_->on_delete_messages(
-            static_cast<const secret_api::decryptedMessageActionDeleteMessages &>(*action).random_ids_,
-            std::move(save_message_finish));
-        break;
-      case secret_api::decryptedMessageActionFlushHistory::ID:
-        context_->on_flush_history(false, MessageId(ServerMessageId(message->message_id)),
-                                   std::move(save_message_finish));
-        break;
-      case secret_api::decryptedMessageActionReadMessages::ID: {
-        const auto &random_ids =
-            static_cast<const secret_api::decryptedMessageActionReadMessages &>(*action).random_ids_;
-        if (random_ids.size() == 1) {
-          context_->on_read_message(random_ids[0], std::move(save_message_finish));
-        } else {  // probably never happens
-          MultiPromiseActorSafe mpas{"ReadSecretMessagesMultiPromiseActor"};
-          mpas.add_promise(std::move(save_message_finish));
-          auto lock = mpas.get_promise();
-          for (auto random_id : random_ids) {
-            context_->on_read_message(random_id, mpas.get_promise());
-          }
-          lock.set_value(Unit());
-        }
-        break;
-      }
-      case secret_api::decryptedMessageActionScreenshotMessages::ID:
-        context_->on_screenshot_taken(get_user_id(), MessageId(ServerMessageId(message->message_id)), message->date,
-                                      decrypted_message_service->random_id_, std::move(save_message_finish));
-        break;
-      case secret_api::decryptedMessageActionSetMessageTTL::ID:
-        context_->on_set_ttl(get_user_id(), MessageId(ServerMessageId(message->message_id)), message->date,
-                             static_cast<const secret_api::decryptedMessageActionSetMessageTTL &>(*action).ttl_seconds_,
-                             decrypted_message_service->random_id_, std::move(save_message_finish));
-        break;
-      default:
-        save_message_finish.set_value(Unit());
-        break;
-    }
-
-    state.message_id = message->message_id;
-    TRY_STATUS(on_inbound_action(*action, message->message_id));
-  } else {
-    LOG(ERROR) << "IGNORE MESSAGE: " << to_string(message->decrypted_message_layer);
-    save_message_finish.set_value(Unit());
-  }
-
-  // save_changes
-  auto save_changes_finish = PromiseCreator::lambda([actor_id = actor_id(this), state_id](Result<> result) {
-    if (result.is_ok()) {
-      send_closure(actor_id, &SecretChatActor::on_inbound_save_changes_finish, state_id);
-    } else {
-      send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(),
-                   "on_inbound_save_changes_finish");
-    }
-  });
-  auto save_changes_start = add_changes(std::move(save_changes_finish));
-
-  // save_log_event
-  auto save_log_event_finish = PromiseCreator::join(std::move(save_changes_start), std::move(qts_promise));
-  if (need_sync) {
-    // TODO: lazy sync is enough
-    context_->binlog()->force_sync(std::move(save_log_event_finish), "do_inbound_message_decrypted");
-  } else {
-    save_log_event_finish.set_value(Unit());
-  }
-  return Status::OK();
-}
-
-void SecretChatActor::on_save_changes_start(ChangesProcessor<StateChange>::Id save_changes_token) {
-  if (close_flag_) {
-    return;
-  }
-  SeqNoStateChange seq_no_state_change;
-  PfsStateChange pfs_state_change;
-  std::vector<Promise<Unit>> save_changes_finish_promises;
-  changes_processor_.finish(save_changes_token, [&](StateChange &&change) {
-    save_changes_finish_promises.emplace_back(std::move(change.save_changes_finish));
-    if (change.seq_no_state_change) {
-      seq_no_state_change = std::move(change.seq_no_state_change);
-    }
-    if (change.pfs_state_change) {
-      pfs_state_change = std::move(change.pfs_state_change);
-    }
-  });
-  if (seq_no_state_change) {
-    LOG(INFO) << "SAVE SeqNoState " << seq_no_state_change;
-    context_->secret_chat_db()->set_value(seq_no_state_change);
-  }
-  if (pfs_state_change) {
-    LOG(INFO) << "SAVE PfsState " << pfs_state_change;
-    saved_pfs_state_message_id_ = pfs_state_change.message_id;
-    context_->secret_chat_db()->set_value(pfs_state_change);
-  }
-  // NB: we may not wait till database is flushed, because every other change will be in the same binlog
-  for (auto &save_changes_finish : save_changes_finish_promises) {
-    save_changes_finish.set_value(Unit());
-  }
-}
-
-void SecretChatActor::on_inbound_save_message_finish(uint64 state_id) {
-  if (close_flag_ || context_->close_flag()) {
-    return;
-  }
-  auto *state = inbound_message_states_.get(state_id);
-  CHECK(state);
-  LOG(INFO) << "Inbound message [save_message] finish " << tag("log_event_id", state->log_event_id);
-  state->save_message_finish = true;
-  inbound_loop(state, state_id);
-}
-
-void SecretChatActor::on_inbound_save_changes_finish(uint64 state_id) {
-  if (close_flag_) {
-    return;
-  }
-  auto *state = inbound_message_states_.get(state_id);
-  CHECK(state);
-  LOG(INFO) << "Inbound message [save_changes] finish " << tag("log_event_id", state->log_event_id);
-  state->save_changes_finish = true;
-  inbound_loop(state, state_id);
-}
-
-void SecretChatActor::inbound_loop(InboundMessageState *state, uint64 state_id) {
-  if (close_flag_) {
-    return;
-  }
-  if (!state->save_changes_finish || !state->save_message_finish) {
-    return;
-  }
-  LOG(INFO) << "Inbound message [remove_log_event] start " << tag("log_event_id", state->log_event_id);
-  binlog_erase(context_->binlog(), state->log_event_id);
-
-  inbound_message_states_.erase(state_id);
-}
-
-NetQueryPtr SecretChatActor::create_net_query(const log_event::OutboundSecretMessage &message) {
-  NetQueryPtr query;
-  if (message.need_notify_user) {
-    CHECK(message.file.empty());
-    query = create_net_query(QueryType::Message,
-                             telegram_api::messages_sendEncryptedService(get_input_chat(), message.random_id,
-                                                                         message.encrypted_message.clone()));
-  } else if (message.file.empty()) {
-    int32 flags = 0;
-    if (message.is_silent) {
-      flags |= telegram_api::messages_sendEncrypted::SILENT_MASK;
-    }
-    query = create_net_query(
-        QueryType::Message, telegram_api::messages_sendEncrypted(flags, false /*ignored*/, get_input_chat(),
-                                                                 message.random_id, message.encrypted_message.clone()));
-  } else {
-    int32 flags = 0;
-    if (message.is_silent) {
-      flags |= telegram_api::messages_sendEncryptedFile::SILENT_MASK;
-    }
-    query = create_net_query(QueryType::Message,
-                             telegram_api::messages_sendEncryptedFile(
-                                 flags, false /*ignored*/, get_input_chat(), message.random_id,
-                                 message.encrypted_message.clone(), message.file.as_input_encrypted_file()));
-  }
-  if (!message.is_rewritable) {
-    query->total_timeout_limit_ = 1000000000;  // inf. We will re-sent it immediately anyway
-  }
-  if (message.is_external && context_->get_config_option_boolean("use_quick_ack")) {
-    query->quick_ack_promise_ =
-        PromiseCreator::lambda([actor_id = actor_id(this), random_id = message.random_id](Result<Unit> result) {
-          if (result.is_ok()) {
-            send_closure(actor_id, &SecretChatActor::on_send_message_ack, random_id);
-          }
-        });
-  }
-
-  return query;
-}
-
-void SecretChatActor::on_outbound_send_message_start(uint64 state_id) {
-  auto *state = outbound_message_states_.get(state_id);
-  if (state == nullptr) {
-    LOG(INFO) << "Outbound message [send_message] start ignored (unknown state_id) " << tag("state_id", state_id);
-    return;
-  }
-
-  auto *message = state->message.get();
-
-  if (!message->is_sent) {
-    LOG(INFO) << "Outbound message [send_message] start " << tag("log_event_id", state->message->log_event_id());
-    auto query = create_net_query(*message);
-    state->net_query_id = query->id();
-    state->net_query_ref = query.get_weak();
-    state->net_query_may_fail = state->message->is_rewritable;
-    context_->send_net_query(std::move(query), actor_shared(this, state_id), true);
-  } else {
-    LOG(INFO) << "Outbound message [send_message] start dummy " << tag("log_event_id", state->message->log_event_id());
-    on_outbound_send_message_finish(state_id);
-  }
-}
-
-void SecretChatActor::outbound_resend(uint64 state_id) {
-  if (close_flag_) {
-    return;
-  }
-  auto *state = outbound_message_states_.get(state_id);
-  CHECK(state);
-
-  state->message->is_sent = false;
-  state->net_query_id = 0;
-  state->net_query_ref = NetQueryRef();
-  LOG(INFO) << "Outbound message [resend] " << tag("log_event_id", state->message->log_event_id())
-            << tag("state_id", state_id);
-
-  binlog_rewrite(context_->binlog(), state->message->log_event_id(), LogEvent::HandlerType::SecretChats,
-                 create_storer(*state->message));
-  auto send_message_start = PromiseCreator::lambda([actor_id = actor_id(this), state_id](Result<> result) {
-    if (result.is_ok()) {
-      send_closure(actor_id, &SecretChatActor::on_outbound_send_message_start, state_id);
-    } else {
-      send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(),
-                   "on_outbound_send_message_start");
-    }
-  });
-  context_->binlog()->force_sync(std::move(send_message_start), "outbound_resend");
-}
-
-Status SecretChatActor::outbound_rewrite_with_empty(uint64 state_id) {
-  if (close_flag_) {
-    return Status::OK();
-  }
-  auto *state = outbound_message_states_.get(state_id);
-  if (state == nullptr || !state->message->is_rewritable) {
-    return Status::OK();
-  }
-  cancel_query(state->net_query_ref);
-
-  Slice data = state->message->encrypted_message.as_slice();
-  CHECK(is_aligned_pointer<4>(data.data()));
-
-  // Rewrite with delete itself
-  tl_object_ptr<secret_api::DecryptedMessage> message = secret_api::make_object<secret_api::decryptedMessageService>(
-      state->message->random_id, secret_api::make_object<secret_api::decryptedMessageActionDeleteMessages>(
-                                     std::vector<int64>{static_cast<int64>(state->message->random_id)}));
-
-  TRY_RESULT(encrypted_message,
-             create_encrypted_message(state->message->my_in_seq_no, state->message->my_out_seq_no, message));
-  state->message->encrypted_message = std::move(encrypted_message);
-  LOG(INFO) << tag("crc", crc64(state->message->encrypted_message.as_slice()));
-  state->message->is_rewritable = false;
-  state->message->is_external = false;
-  state->message->need_notify_user = false;
-  state->message->is_silent = true;
-  state->message->file = log_event::EncryptedInputFile();
-  binlog_rewrite(context_->binlog(), state->message->log_event_id(), LogEvent::HandlerType::SecretChats,
-                 create_storer(*state->message));
-  return Status::OK();
-}
-
-void SecretChatActor::on_outbound_send_message_result(NetQueryPtr query, Promise<NetQueryPtr> resend_promise) {
-  if (close_flag_) {
-    return;
-  }
-  auto state_id = get_link_token();
-  auto *state = outbound_message_states_.get(state_id);
-  if (!state) {
-    LOG(INFO) << "Ignore old net query result " << tag("state_id", state_id);
-    query->clear();
-    return;
-  }
-  CHECK(state);
-  if (state->net_query_id != query->id()) {
-    LOG(INFO) << "Ignore old net query result " << tag("log_event_id", state->message->log_event_id())
-              << tag("query_id", query->id()) << tag("state_query_id", state->net_query_id) << query;
-    query->clear();
-    return;
-  }
-
-  state->net_query_id = 0;
-  state->net_query_ref = NetQueryRef();
-
-  auto r_result = fetch_result<telegram_api::messages_sendEncrypted>(std::move(query));
-  if (r_result.is_error()) {
-    auto error = r_result.move_as_error();
-
-    auto send_message_error_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), state_id, error = error.clone(),
-                                resend_promise = std::move(resend_promise)](Result<> result) mutable {
-          if (result.is_ok()) {
-            send_closure(actor_id, &SecretChatActor::on_outbound_send_message_error, state_id, std::move(error),
-                         std::move(resend_promise));
-          } else {
-            send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(),
-                         "on_outbound_send_message_error");
-          }
-        });
-
-    if (state->message->is_external) {
-      LOG(INFO) << "Outbound secret message [send_message] failed, rewrite it with dummy "
-                << tag("log_event_id", state->message->log_event_id()) << tag("error", error);
-      state->send_result_ = [this, random_id = state->message->random_id, error_code = error.code(),
-                             error_message = error.message().str()](Promise<> promise) {
-        context_->on_send_message_error(random_id, Status::Error(error_code, error_message), std::move(promise));
-      };
-      state->send_result_(std::move(send_message_error_promise));
-    } else {
-      // Just resend.
-      LOG(INFO) << "Outbound secret message [send_message] failed, resend it "
-                << tag("log_event_id", state->message->log_event_id()) << tag("error", error);
-      send_message_error_promise.set_value(Unit());
-    }
-    return;
-  }
-
-  auto result = r_result.move_as_ok();
-  LOG(INFO) << "Receive messages_sendEncrypted result: " << tag("message_id", state->message->message_id)
-            << tag("random_id", state->message->random_id) << to_string(*result);
-
-  auto send_message_finish_promise = PromiseCreator::lambda([actor_id = actor_id(this), state_id](Result<> result) {
-    if (result.is_ok()) {
-      send_closure(actor_id, &SecretChatActor::on_outbound_send_message_finish, state_id);
-    } else {
-      send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(),
-                   "on_outbound_send_message_finish");
-    }
-  });
-
-  if (state->message->is_external) {
-    switch (result->get_id()) {
-      case telegram_api::messages_sentEncryptedMessage::ID: {
-        auto sent = move_tl_object_as<telegram_api::messages_sentEncryptedMessage>(result);
-        state->send_result_ = [this, random_id = state->message->random_id,
-                               message_id = MessageId(ServerMessageId(state->message->message_id)),
-                               date = sent->date_](Promise<> promise) {
-          context_->on_send_message_ok(random_id, message_id, date, nullptr, std::move(promise));
-        };
-        state->send_result_(std::move(send_message_finish_promise));
-        return;
-      }
-      case telegram_api::messages_sentEncryptedFile::ID: {
-        auto sent = move_tl_object_as<telegram_api::messages_sentEncryptedFile>(result);
-        auto file = EncryptedFile::get_encrypted_file(std::move(sent->file_));
-        if (file == nullptr) {
-          state->message->file = log_event::EncryptedInputFile();
-          state->send_result_ = [this, random_id = state->message->random_id,
-                                 message_id = MessageId(ServerMessageId(state->message->message_id)),
-                                 date = sent->date_](Promise<> promise) {
-            context_->on_send_message_ok(random_id, message_id, date, nullptr, std::move(promise));
-          };
-        } else {
-          state->message->file = {log_event::EncryptedInputFile::Location, file->id_, file->access_hash_, 0, 0};
-          state->send_result_ = [this, random_id = state->message->random_id,
-                                 message_id = MessageId(ServerMessageId(state->message->message_id)),
-                                 date = sent->date_, file = *file](Promise<> promise) {
-            context_->on_send_message_ok(random_id, message_id, date, make_unique<EncryptedFile>(file),
-                                         std::move(promise));
-          };
-        }
-        state->send_result_(std::move(send_message_finish_promise));
-        return;
-      }
-    }
-  }
-  send_message_finish_promise.set_value(Unit());
-}
-
-void SecretChatActor::on_outbound_send_message_error(uint64 state_id, Status error,
-                                                     Promise<NetQueryPtr> resend_promise) {
-  if (close_flag_) {
-    return;
-  }
-  if (context_->close_flag()) {
-    return;
-  }
-  auto *state = outbound_message_states_.get(state_id);
-  if (!state) {
-    return;
-  }
-  bool need_sync = false;
-  if (state->net_query_may_fail) {
-    // message could be already non-rewritable, if it was deleted during NetQuery execution.
-    if (state->message->is_rewritable) {
-      delete_message(state->message->random_id, Promise<>());
-      // state pointer may be invalidated
-      state = outbound_message_states_.get(state_id);
-      need_sync = true;
-    }
-  } else if (error.code() != 429) {
-    return on_fatal_error(std::move(error),
-                          (error.code() == 400 && error.message() == "ENCRYPTION_DECLINED") || error.code() == 403);
-  }
-  auto query = create_net_query(*state->message);
-  state->net_query_id = query->id();
-
-  CHECK(resend_promise);
-  auto send_message_start =
-      PromiseCreator::lambda([actor_id = actor_id(this), resend_promise = std::move(resend_promise),
-                              query = std::move(query)](Result<> result) mutable {
-        if (result.is_ok()) {
-          resend_promise.set_value(std::move(query));
-        } else {
-          send_closure(actor_id, &SecretChatActor::on_promise_error, result.move_as_error(), "resend_query");
-        }
-      });
-  if (need_sync) {
-    context_->binlog()->force_sync(std::move(send_message_start), "on_outbound_send_message_error");
-  } else {
-    send_message_start.set_value(Unit());
-  }
-}
-
-void SecretChatActor::on_outbound_send_message_finish(uint64 state_id) {
-  if (close_flag_) {
-    return;
-  }
-  auto *state = outbound_message_states_.get(state_id);
-  if (!state) {
-    return;
-  }
-  LOG(INFO) << "Outbound secret message [send_message] finish " << tag("log_event_id", state->message->log_event_id());
-  state->send_message_finish_flag = true;
-  state->outer_send_message_finish.set_value(Unit());
-
-  outbound_loop(state, state_id);
-}
-
-void SecretChatActor::on_outbound_save_changes_finish(uint64 state_id) {
-  if (close_flag_) {
-    return;
-  }
-  auto *state = outbound_message_states_.get(state_id);
-  CHECK(state);
-  LOG(INFO) << "Outbound secret message [save_changes] finish " << tag("log_event_id", state->message->log_event_id());
-  state->save_changes_finish_flag = true;
-  outbound_loop(state, state_id);
-}
-
-void SecretChatActor::on_outbound_ack(uint64 state_id) {
-  if (close_flag_) {
-    return;
-  }
-  auto *state = outbound_message_states_.get(state_id);
-  CHECK(state);
-  LOG(INFO) << "Outbound secret message [ack] finish " << tag("log_event_id", state->message->log_event_id());
-  state->ack_flag = true;
-  outbound_loop(state, state_id);
-}
-
-void SecretChatActor::on_outbound_outer_send_message_promise(uint64 state_id, Promise<> promise) {
-  if (close_flag_) {
-    promise.set_error(Status::Error(400, "Chat is closed"));
-    return;
-  }
-  auto *state = outbound_message_states_.get(state_id);
-  CHECK(state);
-  LOG(INFO) << "Outbound secret message " << tag("log_event_id", state->message->log_event_id());
-  promise.set_value(Unit());  // Seems like this message is at least stored to binlog already
-  if (state->send_result_) {
-    state->send_result_({});
-  } else if (state->message->is_sent) {
-    context_->on_send_message_error(state->message->random_id, Status::Error(400, "Message has already been sent"),
-                                    Auto());
-  }
-}
-
-void SecretChatActor::outbound_loop(OutboundMessageState *state, uint64 state_id) {
-  if (close_flag_) {
-    return;
-  }
-  if (state->save_changes_finish_flag /*&& state->send_message_finish_flag*/ && state->ack_flag) {
-    LOG(INFO) << "Outbound message [remove_log_event] start " << tag("log_event_id", state->message->log_event_id());
-    binlog_erase(context_->binlog(), state->message->log_event_id());
-
-    random_id_to_outbound_message_state_token_.erase(state->message->random_id);
-    LOG(INFO) << "Outbound message finish (lazy) " << tag("log_event_id", state->message->log_event_id());
-    outbound_message_states_.erase(state_id);
-    return;
-  }
-
-  if (state->save_changes_finish_flag && state->send_message_finish_flag &&
-      !state->message->is_sent) {  // [rewrite_log_event]
-    LOG(INFO) << "Outbound message [rewrite_log_event] start " << tag("log_event_id", state->message->log_event_id());
-    state->message->is_sent = true;
-    binlog_rewrite(context_->binlog(), state->message->log_event_id(), LogEvent::HandlerType::SecretChats,
-                   create_storer(*state->message));
-  }
-}
-
-template <class T>
-Status SecretChatActor::save_common_info(T &update) {
-  if (auth_state_.id != update.id_) {
-    return Status::Error(PSLICE() << "chat_id mismatch: " << tag("mine", auth_state_.id) << tag("outer", update.id_));
-  }
-  auth_state_.id = update.id_;
-  auth_state_.access_hash = update.access_hash_;
-  return Status::OK();
-}
-
-Status SecretChatActor::on_update_chat(telegram_api::encryptedChatRequested &update) {
-  if (auth_state_.state != State::Empty) {
-    LOG(INFO) << "Unexpected encryptedChatRequested ignored: " << to_string(update);
-    return Status::OK();
-  }
-  auth_state_.state = State::SendAccept;
-  auth_state_.x = 1;
-  auth_state_.user_id = UserId(update.admin_id_);
-  auth_state_.date = context_->unix_time();
-  TRY_STATUS(save_common_info(update));
-  auth_state_.handshake.set_g_a(update.g_a_.as_slice());
-  auth_state_.initial_folder_id = FolderId(update.folder_id_);
-
-  send_update_secret_chat();
-  return Status::OK();
-}
-Status SecretChatActor::on_update_chat(telegram_api::encryptedChatEmpty &update) {
-  return Status::OK();
-}
-Status SecretChatActor::on_update_chat(telegram_api::encryptedChatWaiting &update) {
-  if (auth_state_.state != State::WaitRequestResponse && auth_state_.state != State::WaitAcceptResponse) {
-    LOG(INFO) << "Unexpected encryptedChatWaiting ignored";
-    return Status::OK();
-  }
-  TRY_STATUS(save_common_info(update));
-  send_update_secret_chat();
-  return Status::OK();
-}
-Status SecretChatActor::on_update_chat(telegram_api::encryptedChat &update) {
-  if (auth_state_.state != State::WaitRequestResponse && auth_state_.state != State::WaitAcceptResponse) {
-    LOG(INFO) << "Unexpected encryptedChat ignored";
-    return Status::OK();
-  }
-  TRY_STATUS(save_common_info(update));
-  if (auth_state_.state == State::WaitRequestResponse) {
-    auth_state_.handshake.set_g_a(update.g_a_or_b_.as_slice());
-    TRY_STATUS(auth_state_.handshake.run_checks(true, context_->dh_callback()));
-    auto id_and_key = auth_state_.handshake.gen_key();
-    pfs_state_.auth_key = mtproto::AuthKey(id_and_key.first, std::move(id_and_key.second));
-    calc_key_hash();
-  }
-  if (static_cast<int64>(pfs_state_.auth_key.id()) != update.key_fingerprint_) {
-    return Status::Error("Key fingerprint mismatch");
-  }
-  auth_state_.state = State::Ready;
-  if (create_log_event_id_ != 0) {
-    binlog_erase(context_->binlog(), create_log_event_id_);
-    create_log_event_id_ = 0;
-  }
-
-  // NB: order is important
-  context_->secret_chat_db()->set_value(pfs_state_);
-  context_->secret_chat_db()->set_value(auth_state_);
-  send_update_secret_chat();
-  send_action(secret_api::make_object<secret_api::decryptedMessageActionNotifyLayer>(
-                  static_cast<int32>(SecretChatLayer::Current)),
-              SendFlag::None, Promise<>());
-  return Status::OK();
-}
-Status SecretChatActor::on_update_chat(telegram_api::encryptedChatDiscarded &update) {
-  cancel_chat(update.history_deleted_, true, Promise<Unit>());
-  return Status::OK();
-}
-
-Status SecretChatActor::on_update_chat(NetQueryPtr query) {
-  static_assert(std::is_same<telegram_api::messages_requestEncryption::ReturnType,
-                             telegram_api::messages_acceptEncryption::ReturnType>::value,
-                "");
-  TRY_RESULT(config, fetch_result<telegram_api::messages_requestEncryption>(std::move(query)));
-  TRY_STATUS(on_update_chat(std::move(config)));
-  if (auth_state_.state == State::WaitRequestResponse) {
-    context_->secret_chat_db()->set_value(auth_state_);
-    context_->binlog()->force_sync(Promise<>(), "on_update_chat");
-  }
-  return Status::OK();
-}
-
-Status SecretChatActor::on_update_chat(telegram_api::object_ptr<telegram_api::EncryptedChat> chat) {
-  Status res;
-  downcast_call(*chat, [&](auto &obj) { res = this->on_update_chat(obj); });
-  return res;
-}
-
-Status SecretChatActor::on_read_history(NetQueryPtr query) {
-  if (query.generation() == read_history_query_.generation()) {
-    read_history_query_ = NetQueryRef();
-    read_history_promise_.set_value(Unit());
-  }
-  return Status::OK();
-}
-
-void SecretChatActor::start_up() {
-  LOG(INFO) << "SecretChatActor: start_up";
-  // auto start = Time::now();
-  auto r_auth_state = context_->secret_chat_db()->get_value<AuthState>();
-  if (r_auth_state.is_ok()) {
-    auth_state_ = r_auth_state.move_as_ok();
-  }
-  if (!can_be_empty_ && auth_state_.state == State::Empty) {
-    LOG(INFO) << "Skip creation of empty secret chat " << auth_state_.id;
-    return stop();
-  }
-  if (auth_state_.state == State::Closed) {
-    close_flag_ = true;
-  }
-  auto r_seq_no_state = context_->secret_chat_db()->get_value<SeqNoState>();
-  if (r_seq_no_state.is_ok()) {
-    seq_no_state_ = r_seq_no_state.move_as_ok();
-  }
-  auto r_config_state = context_->secret_chat_db()->get_value<ConfigState>();
-  if (r_config_state.is_ok()) {
-    config_state_ = r_config_state.move_as_ok();
-  }
-  auto r_pfs_state = context_->secret_chat_db()->get_value<PfsState>();
-  if (r_pfs_state.is_ok()) {
-    pfs_state_ = r_pfs_state.move_as_ok();
-  }
-  saved_pfs_state_message_id_ = pfs_state_.message_id;
-  pfs_state_.last_timestamp = Time::now();
-
-  send_update_secret_chat();
-  get_dh_config();
-
-  // auto end = Time::now();
-  // CHECK(end - start < 0.2);
-  LOG(INFO) << "In start_up with SeqNoState " << seq_no_state_;
-  LOG(INFO) << "In start_up with PfsState " << pfs_state_;
-}
-
-void SecretChatActor::get_dh_config() {
-  if (auth_state_.state != State::Empty) {
-    return;
-  }
-
-  auto dh_config = context_->dh_config();
-  if (dh_config) {
-    auth_state_.dh_config = *dh_config;
-  }
-
-  auto version = auth_state_.dh_config.version;
-  int32 random_length = 256;  // ignored server-side, always returns 256 random bytes
-  auto query = create_net_query(QueryType::DhConfig, telegram_api::messages_getDhConfig(version, random_length));
-  context_->send_net_query(std::move(query), actor_shared(this), false);
-}
-
-Status SecretChatActor::on_dh_config(NetQueryPtr query) {
-  LOG(INFO) << "Receive DH config";
-  TRY_RESULT(config, fetch_result<telegram_api::messages_getDhConfig>(std::move(query)));
-  downcast_call(*config, [&](auto &obj) { this->on_dh_config(obj); });
-  TRY_STATUS(mtproto::DhHandshake::check_config(auth_state_.dh_config.g, auth_state_.dh_config.prime,
-                                                context_->dh_callback()));
-  auth_state_.handshake.set_config(auth_state_.dh_config.g, auth_state_.dh_config.prime);
-  return Status::OK();
-}
-
-void SecretChatActor::on_dh_config(telegram_api::messages_dhConfigNotModified &dh_not_modified) {
-  Random::add_seed(dh_not_modified.random_.as_slice());
-}
-
-void SecretChatActor::on_dh_config(telegram_api::messages_dhConfig &dh) {
-  auto dh_config = std::make_shared<DhConfig>();
-  dh_config->version = dh.version_;
-  dh_config->prime = dh.p_.as_slice().str();
-  dh_config->g = dh.g_;
-  Random::add_seed(dh.random_.as_slice());
-  auth_state_.dh_config = *dh_config;
-  context_->set_dh_config(dh_config);
-}
-
-void SecretChatActor::calc_key_hash() {
-  unsigned char sha1_buf[20];
-  auto sha1_slice = Slice(sha1_buf, 20);
-  sha1(pfs_state_.auth_key.key(), sha1_buf);
-
-  unsigned char sha256_buf[32];
-  auto sha256_slice = MutableSlice(sha256_buf, 32);
-  sha256(pfs_state_.auth_key.key(), sha256_slice);
-
-  auth_state_.key_hash = PSTRING() << sha1_slice.substr(0, 16) << sha256_slice.substr(0, 20);
-}
-
-void SecretChatActor::send_update_secret_chat() {
-  if (auth_state_.state == State::Empty) {
-    return;
-  }
-  SecretChatState state;
-  if (auth_state_.state == State::Ready) {
-    state = SecretChatState::Active;
-  } else if (auth_state_.state == State::Closed) {
-    state = SecretChatState::Closed;
-  } else {
-    state = SecretChatState::Waiting;
-  }
-  context_->on_update_secret_chat(auth_state_.access_hash, get_user_id(), state, auth_state_.x == 0, config_state_.ttl,
-                                  auth_state_.date, auth_state_.key_hash, current_layer(),
-                                  auth_state_.initial_folder_id);
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionSetMessageTTL &set_ttl) {
-  config_state_.ttl = set_ttl.ttl_seconds_;
-  context_->secret_chat_db()->set_value(config_state_);
-  send_update_secret_chat();
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionReadMessages &read_messages) {
-  // TODO
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionDeleteMessages &delete_messages) {
-  // Corresponding log event won't be deleted before promise returned by add_changes is set.
-  on_delete_messages(delete_messages.random_ids_).ensure();
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionScreenshotMessages &screenshot) {
-  // nothing to do
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionFlushHistory &flush_history) {
-  on_flush_history(pfs_state_.message_id).ensure();
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionResend &resend) {
-  if (seq_no_state_.resend_end_seq_no < resend.end_seq_no_ / 2) {  // replay protection
-    seq_no_state_.resend_end_seq_no = resend.end_seq_no_ / 2;
-    on_seq_no_state_changed();
-  }
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionNotifyLayer &notify_layer) {
-  config_state_.my_layer = notify_layer.layer_;
-  context_->secret_chat_db()->set_value(config_state_);
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionTyping &typing) {
-  // noop
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionSetMessageTTL &set_ttl) {
-  config_state_.ttl = set_ttl.ttl_seconds_;
-  context_->secret_chat_db()->set_value(config_state_);
-  send_update_secret_chat();
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionReadMessages &read_messages) {
-  // TODO
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionDeleteMessages &delete_messages) {
-  return on_delete_messages(delete_messages.random_ids_);
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionScreenshotMessages &screenshot) {
-  // TODO
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionFlushHistory &screenshot) {
-  return on_flush_history(pfs_state_.message_id);
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionResend &resend) {
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionNotifyLayer &notify_layer) {
-  if (notify_layer.layer_ > config_state_.his_layer) {
-    config_state_.his_layer = notify_layer.layer_;
-    context_->secret_chat_db()->set_value(config_state_);
-    send_update_secret_chat();
-  }
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionTyping &typing) {
-  // noop
-  return Status::OK();
-}
-
-// Perfect Forward Secrecy
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionRequestKey &request_key) {
-  LOG_CHECK(pfs_state_.state == PfsState::WaitSendRequest || pfs_state_.state == PfsState::SendRequest) << pfs_state_;
-  pfs_state_.state = PfsState::WaitRequestResponse;
-  on_pfs_state_changed();
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionAcceptKey &accept_key) {
-  CHECK(pfs_state_.state == PfsState::WaitSendAccept || pfs_state_.state == PfsState::SendAccept);
-  pfs_state_.state = PfsState::WaitAcceptResponse;
-  pfs_state_.handshake = mtproto::DhHandshake();
-  on_pfs_state_changed();
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionAbortKey &abort_key) {
-  // TODO
-  LOG(FATAL) << "TODO";
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionCommitKey &commit_key) {
-  CHECK(pfs_state_.state == PfsState::WaitSendCommit || pfs_state_.state == PfsState::SendCommit);
-
-  CHECK(static_cast<int64>(pfs_state_.other_auth_key.id()) == commit_key.key_fingerprint_);
-  std::swap(pfs_state_.auth_key, pfs_state_.other_auth_key);
-  pfs_state_.can_forget_other_key = true;
-
-  pfs_state_.state = PfsState::Empty;
-  pfs_state_.last_message_id = pfs_state_.message_id;
-  pfs_state_.last_timestamp = Time::now();
-  pfs_state_.last_out_seq_no = seq_no_state_.my_out_seq_no;
-
-  on_pfs_state_changed();
-}
-
-void SecretChatActor::on_outbound_action(secret_api::decryptedMessageActionNoop &noop) {
-  // noop
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionRequestKey &request_key) {
-  if (pfs_state_.state == PfsState::WaitRequestResponse || pfs_state_.state == PfsState::SendRequest) {
-    if (pfs_state_.exchange_id > request_key.exchange_id_) {
-      LOG(INFO) << "RequestKey: silently abort their request";
-      return Status::OK();
-    } else {
-      pfs_state_.state = PfsState::Empty;
-      if (pfs_state_.exchange_id == request_key.exchange_id_) {
-        context_->secret_chat_db()->set_value(pfs_state_);
-        LOG(WARNING) << "RequestKey: silently abort both requests (almost impossible)";
-        return Status::OK();
-      }
-    }
-  }
-
-  if (pfs_state_.state != PfsState::Empty) {
-    return Status::Error("Unexpected RequestKey");
-  }
-  if (!pfs_state_.other_auth_key.empty()) {
-    LOG_CHECK(pfs_state_.can_forget_other_key) << "TODO: receive requestKey, before old key is dropped";
-    return Status::Error("Unexpected RequestKey (old key is used)");
-  }
-  pfs_state_.state = PfsState::SendAccept;
-  pfs_state_.handshake = mtproto::DhHandshake();
-  pfs_state_.exchange_id = request_key.exchange_id_;
-  pfs_state_.handshake.set_config(auth_state_.dh_config.g, auth_state_.dh_config.prime);
-  pfs_state_.handshake.set_g_a(request_key.g_a_.as_slice());
-  TRY_STATUS(pfs_state_.handshake.run_checks(true, context_->dh_callback()));
-  auto id_and_key = pfs_state_.handshake.gen_key();
-
-  pfs_state_.other_auth_key = mtproto::AuthKey(id_and_key.first, std::move(id_and_key.second));
-  pfs_state_.can_forget_other_key = false;
-  pfs_state_.wait_message_id = pfs_state_.message_id;
-
-  on_pfs_state_changed();
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionAcceptKey &accept_key) {
-  if (pfs_state_.state != PfsState::WaitRequestResponse) {
-    return Status::Error("AcceptKey: unexpected");
-  }
-  if (pfs_state_.exchange_id != accept_key.exchange_id_) {
-    return Status::Error("AcceptKey: exchange_id mismatch");
-  }
-  pfs_state_.handshake.set_g_a(accept_key.g_b_.as_slice());
-  TRY_STATUS(pfs_state_.handshake.run_checks(true, context_->dh_callback()));
-  auto id_and_key = pfs_state_.handshake.gen_key();
-  if (static_cast<int64>(id_and_key.first) != accept_key.key_fingerprint_) {
-    return Status::Error("AcceptKey: key_fingerprint mismatch");
-  }
-  pfs_state_.state = PfsState::SendCommit;
-  pfs_state_.handshake = mtproto::DhHandshake();
-  CHECK(pfs_state_.can_forget_other_key || static_cast<int64>(pfs_state_.other_auth_key.id()) == id_and_key.first);
-  pfs_state_.other_auth_key = mtproto::AuthKey(id_and_key.first, std::move(id_and_key.second));
-  pfs_state_.can_forget_other_key = false;
-  pfs_state_.wait_message_id = pfs_state_.message_id;
-
-  on_pfs_state_changed();
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionAbortKey &abort_key) {
-  if (pfs_state_.exchange_id != abort_key.exchange_id_) {
-    LOG(INFO) << "AbortKey: exchange_id mismatch: " << tag("my exchange_id", pfs_state_.exchange_id)
-              << to_string(abort_key);
-    return Status::OK();
-  }
-  if (pfs_state_.state != PfsState::WaitRequestResponse) {
-    return Status::Error("AbortKey: unexpected");
-  }
-  pfs_state_.state = PfsState::Empty;
-  pfs_state_.handshake = mtproto::DhHandshake();
-
-  on_pfs_state_changed();
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionCommitKey &commit_key) {
-  if (pfs_state_.state != PfsState::WaitAcceptResponse) {
-    return Status::Error("CommitKey: unexpected");
-  }
-  if (pfs_state_.exchange_id != commit_key.exchange_id_) {
-    return Status::Error("CommitKey: exchange_id mismatch ");
-  }
-
-  CHECK(!pfs_state_.can_forget_other_key);
-  if (static_cast<int64>(pfs_state_.other_auth_key.id()) != commit_key.key_fingerprint_) {
-    return Status::Error("CommitKey: fingerprint mismatch");
-  }
-  std::swap(pfs_state_.auth_key, pfs_state_.other_auth_key);
-  pfs_state_.can_forget_other_key = true;
-
-  pfs_state_.state = PfsState::Empty;
-  pfs_state_.last_message_id = pfs_state_.message_id;
-  pfs_state_.last_timestamp = Time::now();
-  pfs_state_.last_out_seq_no = seq_no_state_.my_out_seq_no;
-
-  on_pfs_state_changed();
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::decryptedMessageActionNoop &noop) {
-  // noop
-  return Status::OK();
-}
-
-Status SecretChatActor::on_inbound_action(secret_api::DecryptedMessageAction &action, int32 message_id) {
-  // Action may be not about PFS, but we still can use pfs_state_.message_id
-  if (message_id <= pfs_state_.message_id) {  // replay protection
-    LOG(INFO) << "Drop old inbound DecryptedMessageAction: " << to_string(action) << tag("message_id", message_id)
-              << tag("known_message_id", pfs_state_.message_id);
-    return Status::OK();
-  }
-
-  // if message_id < seq_no_state_.message_id, then SeqNoState with message_id bigger than current message_id is already saved.
-  // And event corresponding to message_id is saved too.
-  //
-  // Also, if SeqNoState with message_id greater than current message_id is not saved, then corresponding action will be
-  // replayed.
-  //
-  // This works only for TTL, not for PFS. Same TTL action may be processed twice.
-  if (message_id < seq_no_state_.message_id) {
-    LOG(INFO) << "Drop old inbound DecryptedMessageAction (non-PFS action): " << to_string(action);
-    return Status::OK();
-  }
-  pfs_state_.message_id = message_id;  // replay protection
-
-  LOG(INFO) << "In on_inbound_action: " << to_string(action);
-  Status res;
-  downcast_call(action, [&](auto &obj) { res = this->on_inbound_action(obj); });
-  return res;
-}
-
-void SecretChatActor::on_outbound_action(secret_api::DecryptedMessageAction &action, int32 message_id) {
-  // Action may be not about PFS, but we still can use pfs_state_.message_id
-  if (message_id <= pfs_state_.message_id) {  // replay protection
-    LOG(INFO) << "Drop old outbound DecryptedMessageAction: " << to_string(action);
-    return;
-  }
-
-  // see comment in on_inbound_action
-  if (message_id < seq_no_state_.message_id) {
-    LOG(INFO) << "Drop old outbound DecryptedMessageAction (non-PFS action): " << to_string(action);
-    return;
-  }
-  pfs_state_.message_id = message_id;  // replay protection
-
-  LOG(INFO) << "In on_outbound_action: " << to_string(action);
-  downcast_call(action, [&](auto &obj) { this->on_outbound_action(obj); });
-}
-
-void SecretChatActor::request_new_key() {
-  CHECK(!auth_state_.dh_config.empty());
-
-  pfs_state_.state = PfsState::SendRequest;
-  pfs_state_.handshake = mtproto::DhHandshake();
-  pfs_state_.handshake.set_config(auth_state_.dh_config.g, auth_state_.dh_config.prime);
-  pfs_state_.exchange_id = Random::secure_int64();
-
-  // NB: must save explicitly
-  LOG(INFO) << "SAVE PfsState " << pfs_state_;
-  context_->secret_chat_db()->set_value(pfs_state_);
-}
-
-void SecretChatActor::on_promise_error(Status error, string desc) {
-  if (context_->close_flag()) {
-    LOG(DEBUG) << "Ignore " << tag("promise", desc) << error;
-    return;
-  }
-  LOG(FATAL) << "Failed: " << tag("promise", desc) << error;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretChatActor.h b/third-party/td/td/td/telegram/SecretChatActor.h
deleted file mode 100644
index 17869bf8ba..0000000000
--- a/third-party/td/td/td/telegram/SecretChatActor.h
+++ /dev/null
@@ -1,716 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DhConfig.h"
-#include "td/telegram/EncryptedFile.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/logevent/SecretChatEvent.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretChatDb.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/SecretChatLayer.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/DhCallback.h"
-#include "td/mtproto/DhHandshake.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/ChangesProcessor.h"
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/format.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-#include <functional>
-#include <map>
-#include <memory>
-#include <tuple>
-#include <utility>
-
-namespace td {
-
-class BinlogInterface;
-class NetQueryCreator;
-
-class SecretChatActor final : public NetQueryCallback {
- public:
-  class Context {
-   public:
-    Context() = default;
-    Context(const Context &) = delete;
-    Context &operator=(const Context &) = delete;
-    virtual ~Context() = default;
-    virtual mtproto::DhCallback *dh_callback() = 0;
-    virtual BinlogInterface *binlog() = 0;
-    virtual SecretChatDb *secret_chat_db() = 0;
-
-    virtual NetQueryCreator &net_query_creator() = 0;
-    virtual std::shared_ptr<DhConfig> dh_config() = 0;
-    virtual void set_dh_config(std::shared_ptr<DhConfig> dh_config) = 0;
-
-    virtual bool get_config_option_boolean(const string &name) const = 0;
-
-    virtual int32 unix_time() = 0;
-
-    virtual bool close_flag() = 0;
-
-    // We don't want to expose the whole NetQueryDispatcher, MessagesManager and UserManager.
-    // So it is more clear which parts of MessagesManager are really used. And it is much easier to create tests.
-    virtual void send_net_query(NetQueryPtr query, ActorShared<NetQueryCallback> callback, bool ordered) = 0;
-
-    virtual void on_update_secret_chat(int64 access_hash, UserId user_id, SecretChatState state, bool is_outbound,
-                                       int32 ttl, int32 date, string key_hash, int32 layer,
-                                       FolderId initial_folder_id) = 0;
-
-    // Promise must be set only after the update is processed.
-    //
-    // For example, one may set promise, after update was sent to binlog. It is ok, because SecretChatsActor will delete
-    // this update through binlog too. So it wouldn't be deleted before update is saved.
-
-    // inbound messages
-    virtual void on_inbound_message(UserId user_id, MessageId message_id, int32 date, unique_ptr<EncryptedFile> file,
-                                    tl_object_ptr<secret_api::decryptedMessage> message, Promise<> promise) = 0;
-    virtual void on_delete_messages(std::vector<int64> random_id, Promise<> promise) = 0;
-    virtual void on_flush_history(bool remove_from_dialog_list, MessageId message_id, Promise<> promise) = 0;
-    virtual void on_read_message(int64 random_id, Promise<> promise) = 0;
-    virtual void on_screenshot_taken(UserId user_id, MessageId message_id, int32 date, int64 random_id,
-                                     Promise<> promise) = 0;
-    virtual void on_set_ttl(UserId user_id, MessageId message_id, int32 date, int32 ttl, int64 random_id,
-                            Promise<> promise) = 0;
-
-    // outbound messages
-    virtual void on_send_message_ack(int64 random_id) = 0;
-    virtual void on_send_message_ok(int64 random_id, MessageId message_id, int32 date, unique_ptr<EncryptedFile> file,
-                                    Promise<> promise) = 0;
-    virtual void on_send_message_error(int64 random_id, Status error, Promise<> promise) = 0;
-  };
-
-  SecretChatActor(int32 id, unique_ptr<Context> context, bool can_be_empty);
-
-  // First query to new chat must be one of these two
-  void update_chat(telegram_api::object_ptr<telegram_api::EncryptedChat> chat);
-  void create_chat(UserId user_id, int64 user_access_hash, int32 random_id, Promise<SecretChatId> promise);
-
-  void cancel_chat(bool delete_history, bool is_already_discarded, Promise<> promise);
-
-  // Inbound messages
-  // Logevent is created by SecretChatsManager, because it must contain QTS
-  void add_inbound_message(unique_ptr<log_event::InboundSecretMessage> message);
-
-  // Outbound messages
-  // Promise will be set just after corresponding log event is SENT to binlog.
-  void send_message(tl_object_ptr<secret_api::DecryptedMessage> message,
-                    telegram_api::object_ptr<telegram_api::InputEncryptedFile> file, Promise<> promise);
-  void send_message_action(tl_object_ptr<secret_api::SendMessageAction> action);
-  void send_read_history(int32 date,
-                         Promise<>);  // no binlog event. TODO: Promise will be set after the net query is sent
-  void send_open_message(int64 random_id, Promise<>);
-  void delete_message(int64 random_id, Promise<> promise);
-  void delete_messages(std::vector<int64> random_ids, Promise<> promise);
-  void delete_all_messages(Promise<> promise);
-  void notify_screenshot_taken(Promise<> promise);
-  void send_set_ttl_message(int32 ttl, int64 random_id, Promise<> promise);
-
-  // Binlog replay interface
-  void replay_inbound_message(unique_ptr<log_event::InboundSecretMessage> message);
-  void replay_outbound_message(unique_ptr<log_event::OutboundSecretMessage> message);
-  void replay_close_chat(unique_ptr<log_event::CloseSecretChat> event);
-  void replay_create_chat(unique_ptr<log_event::CreateSecretChat> event);
-  void binlog_replay_finish();
-
- private:
-  enum class State : int32 { Empty, SendRequest, SendAccept, WaitRequestResponse, WaitAcceptResponse, Ready, Closed };
-  static constexpr int32 MAX_RESEND_COUNT = 1000;
-
-  // We have git state that should be synchronized with the database.
-  // It is split into several parts because:
-  // 1. Some parts are BIG (auth_key, for example) and are rarely updated.
-  // 2. Other are frequently updated, so probably should be as small as possible.
-  // 3. Some parts must be updated atomically.
-  struct SeqNoState {
-    int32 message_id = 0;
-    int32 my_in_seq_no = 0;
-    int32 my_out_seq_no = 0;
-    int32 his_in_seq_no = 0;
-    int32 his_layer = 0;
-
-    int32 resend_end_seq_no = -1;
-
-    static Slice key() {
-      return Slice("state");
-    }
-    template <class StorerT>
-    void store(StorerT &storer) const {
-      storer.store_int(message_id | HAS_LAYER);
-      storer.store_int(my_in_seq_no);
-      storer.store_int(my_out_seq_no);
-      storer.store_int(his_in_seq_no);
-      storer.store_int(resend_end_seq_no);
-      storer.store_int(his_layer);
-    }
-
-    template <class ParserT>
-    void parse(ParserT &parser) {
-      message_id = parser.fetch_int();
-      my_in_seq_no = parser.fetch_int();
-      my_out_seq_no = parser.fetch_int();
-      his_in_seq_no = parser.fetch_int();
-      resend_end_seq_no = parser.fetch_int();
-
-      bool has_layer = (message_id & HAS_LAYER) != 0;
-      if (has_layer) {
-        message_id &= static_cast<int32>(~HAS_LAYER);
-        his_layer = parser.fetch_int();
-      }
-    }
-    static constexpr uint32 HAS_LAYER = 1u << 31;
-  };
-
-  struct ConfigState {
-    int32 his_layer = 8;
-    int32 my_layer = 8;
-    int32 ttl = 0;
-
-    static Slice key() {
-      return Slice("config");
-    }
-    template <class StorerT>
-    void store(StorerT &storer) const {
-      storer.store_int(his_layer | HAS_FLAGS);
-      storer.store_int(ttl);
-      storer.store_int(my_layer);
-      //for future usage
-      BEGIN_STORE_FLAGS();
-      END_STORE_FLAGS();
-    }
-
-    template <class ParserT>
-    void parse(ParserT &parser) {
-      his_layer = parser.fetch_int();
-      ttl = parser.fetch_int();
-      bool has_flags = (his_layer & HAS_FLAGS) != 0;
-      if (has_flags) {
-        his_layer &= static_cast<int32>(~HAS_FLAGS);
-        my_layer = parser.fetch_int();
-        // for future usage
-        BEGIN_PARSE_FLAGS();
-        END_PARSE_FLAGS();
-      }
-    }
-
-    static constexpr uint32 HAS_FLAGS = 1u << 31;
-  };
-
-  // PfsAction
-  struct PfsState {
-    enum State : int32 {
-      Empty,
-      WaitSendRequest,
-      SendRequest,
-      WaitRequestResponse,
-      WaitSendAccept,
-      SendAccept,
-      WaitAcceptResponse,
-      WaitSendCommit,
-      SendCommit
-    } state = Empty;
-
-    enum Flags : int32 { CanForgetOtherKey = 1 };
-    mtproto::AuthKey auth_key;
-    mtproto::AuthKey other_auth_key;
-    bool can_forget_other_key = true;
-
-    int32 message_id = 0;  // to skip old actions
-    int32 wait_message_id = 0;
-    int64 exchange_id = 0;
-    int32 last_message_id = 0;
-    double last_timestamp = 0;
-    int32 last_out_seq_no = 0;
-    mtproto::DhHandshake handshake;
-
-    static Slice key() {
-      return Slice("pfs_state");
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const {
-      int32 flags = 0;
-      if (can_forget_other_key) {
-        flags |= CanForgetOtherKey;
-      }
-      storer.store_int(flags);
-      storer.store_int(state);
-      auth_key.store(storer);
-      other_auth_key.store(storer);
-      storer.store_int(message_id);
-      storer.store_long(exchange_id);
-      storer.store_int(last_message_id);
-      storer.store_long(static_cast<int64>((last_timestamp - Time::now() + Clocks::system()) * 1000000));
-      storer.store_int(last_out_seq_no);
-      handshake.store(storer);
-    }
-    template <class ParserT>
-    void parse(ParserT &parser) {
-      int32 flags = parser.fetch_int();
-      can_forget_other_key = (flags & CanForgetOtherKey) != 0;
-      state = static_cast<State>(parser.fetch_int());
-      auth_key.parse(parser);
-      other_auth_key.parse(parser);
-      message_id = parser.fetch_int();
-      exchange_id = parser.fetch_long();
-      last_message_id = parser.fetch_int();
-      last_timestamp = static_cast<double>(parser.fetch_long()) / 1000000 - Clocks::system() + Time::now();
-      if (last_timestamp > Time::now_cached()) {
-        last_timestamp = Time::now_cached();
-      }
-      last_out_seq_no = parser.fetch_int();
-      handshake.parse(parser);
-    }
-  };
-  friend StringBuilder &operator<<(StringBuilder &sb, const PfsState &state) {
-    return sb << "PfsState["
-              << tag("state",
-                     [&] {
-                       switch (state.state) {
-                         case PfsState::Empty:
-                           return "Empty";
-                         case PfsState::WaitSendRequest:
-                           return "WaitSendRequest";
-                         case PfsState::SendRequest:
-                           return "SendRequest";
-                         case PfsState::WaitRequestResponse:
-                           return "WaitRequestResponse";
-                         case PfsState::WaitSendAccept:
-                           return "WaitSendAccept";
-                         case PfsState::SendAccept:
-                           return "SendAccept";
-                         case PfsState::WaitAcceptResponse:
-                           return "WaitAcceptResponse";
-                         case PfsState::WaitSendCommit:
-                           return "WaitSendCommit";
-                         case PfsState::SendCommit:
-                           return "SendCommit";
-                       }
-                       return "UNKNOWN";
-                     }())
-              << tag("message_id", state.message_id) << tag("auth_key", format::as_hex(state.auth_key.id()))
-              << tag("last_message_id", state.last_message_id)
-              << tag("other_auth_key", format::as_hex(state.other_auth_key.id()))
-              << tag("can_forget", state.can_forget_other_key) << "]";
-  }
-
-  PfsState pfs_state_;
-  bool pfs_state_changed_ = false;
-
-  void on_outbound_action(secret_api::decryptedMessageActionSetMessageTTL &set_ttl);
-  void on_outbound_action(secret_api::decryptedMessageActionReadMessages &read_messages);
-  void on_outbound_action(secret_api::decryptedMessageActionDeleteMessages &delete_messages);
-  void on_outbound_action(secret_api::decryptedMessageActionScreenshotMessages &screenshot);
-  void on_outbound_action(secret_api::decryptedMessageActionFlushHistory &flush_history);
-  void on_outbound_action(secret_api::decryptedMessageActionResend &resend);
-  void on_outbound_action(secret_api::decryptedMessageActionNotifyLayer &notify_layer);
-  void on_outbound_action(secret_api::decryptedMessageActionTyping &typing);
-
-  Status on_inbound_action(secret_api::decryptedMessageActionSetMessageTTL &set_ttl);
-  Status on_inbound_action(secret_api::decryptedMessageActionReadMessages &read_messages);
-  Status on_inbound_action(secret_api::decryptedMessageActionDeleteMessages &delete_messages);
-  Status on_inbound_action(secret_api::decryptedMessageActionScreenshotMessages &screenshot);
-  Status on_inbound_action(secret_api::decryptedMessageActionFlushHistory &screenshot);
-
-  Status on_inbound_action(secret_api::decryptedMessageActionResend &resend);
-  Status on_inbound_action(secret_api::decryptedMessageActionNotifyLayer &notify_layer);
-  Status on_inbound_action(secret_api::decryptedMessageActionTyping &typing);
-
-  // Perfect Forward Secrecy
-  void on_outbound_action(secret_api::decryptedMessageActionRequestKey &request_key);
-  void on_outbound_action(secret_api::decryptedMessageActionAcceptKey &accept_key);
-  void on_outbound_action(secret_api::decryptedMessageActionAbortKey &abort_key);
-  void on_outbound_action(secret_api::decryptedMessageActionCommitKey &commit_key);
-  void on_outbound_action(secret_api::decryptedMessageActionNoop &noop);
-
-  Status on_inbound_action(secret_api::decryptedMessageActionRequestKey &request_key);
-  Status on_inbound_action(secret_api::decryptedMessageActionAcceptKey &accept_key);
-  Status on_inbound_action(secret_api::decryptedMessageActionAbortKey &abort_key);
-  Status on_inbound_action(secret_api::decryptedMessageActionCommitKey &commit_key);
-  Status on_inbound_action(secret_api::decryptedMessageActionNoop &noop);
-
-  Status on_inbound_action(secret_api::DecryptedMessageAction &action, int32 message_id);
-
-  void on_outbound_action(secret_api::DecryptedMessageAction &action, int32 message_id);
-
-  void request_new_key();
-
-  struct AuthState {
-    State state = State::Empty;
-    int x = -1;
-    string key_hash;
-
-    int32 id = 0;
-    int64 access_hash = 0;
-
-    UserId user_id;
-    int64 user_access_hash = 0;
-    int32 random_id = 0;
-
-    int32 date = 0;
-
-    FolderId initial_folder_id;
-
-    DhConfig dh_config;
-    mtproto::DhHandshake handshake;
-
-    static Slice key() {
-      return Slice("auth_state");
-    }
-    template <class StorerT>
-    void store(StorerT &storer) const {
-      uint32 flags = 8;
-      bool has_date = date != 0;
-      bool has_key_hash = true;
-      bool has_initial_folder_id = initial_folder_id != FolderId();
-      if (has_date) {
-        flags |= 1;
-      }
-      if (has_key_hash) {
-        flags |= 2;
-      }
-      if (has_initial_folder_id) {
-        flags |= 4;
-      }
-      storer.store_int((flags << 8) | static_cast<int32>(state));
-      storer.store_int(x);
-
-      storer.store_int(id);
-      storer.store_long(access_hash);
-      storer.store_long(user_id.get());
-      storer.store_long(user_access_hash);
-      storer.store_int(random_id);
-      if (has_date) {
-        storer.store_int(date);
-      }
-      if (has_key_hash) {
-        storer.store_string(key_hash);
-      }
-      dh_config.store(storer);
-      if (state == State::SendRequest || state == State::WaitRequestResponse) {
-        handshake.store(storer);
-      }
-      if (has_initial_folder_id) {
-        initial_folder_id.store(storer);
-      }
-    }
-
-    template <class ParserT>
-    void parse(ParserT &parser) {
-      uint32 tmp = parser.fetch_int();
-      state = static_cast<State>(tmp & 255);
-      uint32 flags = tmp >> 8;
-      bool has_date = (flags & 1) != 0;
-      bool has_key_hash = (flags & 2) != 0;
-      bool has_initial_folder_id = (flags & 4) != 0;
-      bool has_64bit_user_id = (flags & 8) != 0;
-
-      x = parser.fetch_int();
-
-      id = parser.fetch_int();
-      access_hash = parser.fetch_long();
-      if (has_64bit_user_id) {
-        user_id = UserId(parser.fetch_long());
-      } else {
-        user_id = UserId(static_cast<int64>(parser.fetch_int()));
-      }
-      user_access_hash = parser.fetch_long();
-      random_id = parser.fetch_int();
-      if (has_date) {
-        date = parser.fetch_int();
-      }
-      if (has_key_hash) {
-        key_hash = parser.template fetch_string<std::string>();
-      }
-      dh_config.parse(parser);
-      if (state == State::SendRequest || state == State::WaitRequestResponse) {
-        handshake.parse(parser);
-      }
-      if (has_initial_folder_id) {
-        initial_folder_id.parse(parser);
-      }
-    }
-  };
-
-  std::shared_ptr<SecretChatDb> db_;
-  unique_ptr<Context> context_;
-
-  bool binlog_replay_finish_flag_ = false;
-  bool close_flag_ = false;
-  Promise<Unit> discard_encryption_promise_;
-
-  LogEvent::Id create_log_event_id_ = 0;
-
-  enum class QueryType : uint8 { DhConfig, EncryptedChat, Message, Ignore, DiscardEncryption, ReadHistory };
-
-  bool can_be_empty_;
-  AuthState auth_state_;
-  ConfigState config_state_;
-
-  // Turns out, that all changes should be made through StateChange.
-  //
-  // The problem is the time between the moment we made decision about change and
-  // the moment we actually apply the change to memory.
-  // We may accept some other change during that time, and there goes our problem
-  // The reason for the change may already be invalid. So we should somehow recheck change, that
-  // is already written to binlog, and apply it only if necessary.
-  // This is completely flawed.
-  // (A-start_save_to_binlog ----> B-start_save_to_binlog+change_memory ----> A-finish_save_to_binlog+surprise)
-  //
-  // Instead, I suggest general solution that is already used with SeqNoState and QTS
-  // 1. We APPLY CHANGE to memory immediately AFTER corresponding EVENT is SENT to the binlog.
-  // 2. We SEND CHANGE to database only after corresponding EVENT is SAVED to the binlog.
-  // 3. Then, we are able to ERASE EVENT just AFTER the CHANGE is SAVED to the binlog.
-  //
-  // Actually the change will be saved to binlog too.
-  // So we can do it immediately after EVENT is SENT to the binlog, because SEND CHANGE and ERASE EVENT will be
-  // ordered automatically.
-  //
-  // We will use common ChangesProcessor for all changes (inside one SecretChatActor).
-  // So all changes will be saved in exactly the same order as they are applied.
-
-  template <class StateT>
-  class Change {
-   public:
-    Change() : message_id() {
-    }
-    explicit operator bool() const noexcept {
-      return !data.empty();
-    }
-    explicit Change(const StateT &state) {
-      data = serialize(state);
-      message_id = state.message_id;
-    }
-    template <class StorerT>
-    void store(StorerT &storer) const {
-      // NB: rely that storer will the same as in serialize
-      storer.store_slice(data);
-    }
-    static Slice key() {
-      return StateT::key();
-    }
-
-    friend StringBuilder &operator<<(StringBuilder &sb, const Change<StateT> &change) {
-      if (change) {
-        StateT state;
-        unserialize(state, change.data).ensure();
-        return sb << state;
-      }
-      return sb;
-    }
-
-    int32 message_id;
-
-   private:
-    std::string data;
-  };
-
-  // SeqNoState
-  using SeqNoStateChange = Change<SeqNoState>;
-  using PfsStateChange = Change<PfsState>;
-  struct StateChange {
-    // TODO(perf): Less allocations, please? May be BufferSlice instead of std::string?
-    SeqNoStateChange seq_no_state_change;
-    PfsStateChange pfs_state_change;
-    Promise<Unit> save_changes_finish;
-  };
-
-  ChangesProcessor<StateChange> changes_processor_;
-  int32 saved_pfs_state_message_id_ = 0;
-
-  SeqNoState seq_no_state_;
-  bool seq_no_state_changed_ = false;
-  int32 last_binlog_message_id_ = -1;
-
-  Status check_seq_no(int in_seq_no, int out_seq_no, int32 his_layer) TD_WARN_UNUSED_RESULT;
-  void on_his_in_seq_no_updated();
-
-  void on_seq_no_state_changed();
-  template <class T>
-  void update_seq_no_state(const T &new_seq_no_state);
-  void on_pfs_state_changed();
-  Promise<> add_changes(Promise<> save_changes_finish = Promise<>());
-  // called only via Promise
-  void on_save_changes_start(ChangesProcessor<StateChange>::Id save_changes_token);
-
-  // InboundMessage
-  struct InboundMessageState {
-    bool save_changes_finish = false;
-    bool save_message_finish = false;
-    LogEvent::Id log_event_id = 0;
-    int32 message_id = 0;
-  };
-  Container<InboundMessageState> inbound_message_states_;
-
-  std::map<int32, unique_ptr<log_event::InboundSecretMessage>> pending_inbound_messages_;
-
-  Result<std::tuple<uint64, BufferSlice, int32>> decrypt(BufferSlice &encrypted_message);
-
-  Status do_inbound_message_encrypted(unique_ptr<log_event::InboundSecretMessage> message);
-  Status do_inbound_message_decrypted_unchecked(unique_ptr<log_event::InboundSecretMessage> message,
-                                                int32 mtproto_version);
-  Status do_inbound_message_decrypted(unique_ptr<log_event::InboundSecretMessage> message);
-  void do_inbound_message_decrypted_pending(unique_ptr<log_event::InboundSecretMessage> message);
-
-  void on_inbound_save_message_finish(uint64 state_id);
-  void on_inbound_save_changes_finish(uint64 state_id);
-  void inbound_loop(InboundMessageState *state, uint64 state_id);
-
-  // OutboundMessage
-  struct OutboundMessageState {
-    unique_ptr<log_event::OutboundSecretMessage> message;
-
-    Promise<> outer_send_message_finish;
-    Promise<> send_message_finish;
-
-    bool save_changes_finish_flag = false;
-    bool send_message_finish_flag = false;
-    bool ack_flag = false;
-
-    uint64 net_query_id = 0;
-    NetQueryRef net_query_ref;
-    bool net_query_may_fail = false;
-
-    std::function<void(Promise<>)> send_result_;
-  };
-  std::map<uint64, uint64> random_id_to_outbound_message_state_token_;
-  std::map<int32, uint64> out_seq_no_to_outbound_message_state_token_;
-
-  Container<OutboundMessageState> outbound_message_states_;
-
-  NetQueryRef set_typing_query_;
-  NetQueryRef read_history_query_;
-  int32 last_read_history_date_ = -1;
-  Promise<Unit> read_history_promise_;
-
-  template <class T>
-  NetQueryPtr create_net_query(QueryType type, const T &function);
-
-  enum SendFlag : int32 {
-    None = 0,
-    External = 1,
-    Push = 2,
-  };
-  void send_action(tl_object_ptr<secret_api::DecryptedMessageAction> action, int32 flags, Promise<> promise);
-
-  void send_message_impl(tl_object_ptr<secret_api::DecryptedMessage> message,
-                         telegram_api::object_ptr<telegram_api::InputEncryptedFile> file, int32 flags,
-                         Promise<> promise);
-
-  void do_outbound_message_impl(unique_ptr<log_event::OutboundSecretMessage>, Promise<> promise);
-
-  Result<BufferSlice> create_encrypted_message(int32 my_in_seq_no, int32 my_out_seq_no,
-                                               tl_object_ptr<secret_api::DecryptedMessage> &message);
-
-  NetQueryPtr create_net_query(const log_event::OutboundSecretMessage &message);
-
-  void outbound_resend(uint64 state_id);
-  Status outbound_rewrite_with_empty(uint64 state_id);
-  void on_outbound_send_message_start(uint64 state_id);
-  void on_outbound_send_message_result(NetQueryPtr query, Promise<NetQueryPtr> resend_promise);
-  void on_outbound_send_message_error(uint64 state_id, Status error, Promise<NetQueryPtr> resend_promise);
-  void on_outbound_send_message_finish(uint64 state_id);
-  void on_outbound_save_changes_finish(uint64 state_id);
-  void on_outbound_ack(uint64 state_id);
-  void on_outbound_outer_send_message_promise(uint64 state_id, Promise<> promise);
-  void outbound_loop(OutboundMessageState *state, uint64 state_id);
-
-  // DiscardEncryption
-  void on_fatal_error(Status status, bool is_expected);
-  void do_close_chat_impl(bool delete_history, bool is_already_discarded, uint64 log_event_id, Promise<Unit> &&promise);
-  void on_closed(uint64 log_event_id, Promise<Unit> &&promise);
-
-  // Other
-  template <class T>
-  Status save_common_info(T &update);
-
-  int32 current_layer() const {
-    auto layer = static_cast<int32>(SecretChatLayer::Current);
-    if (config_state_.his_layer < layer) {
-      layer = config_state_.his_layer;
-    }
-    if (layer < static_cast<int32>(SecretChatLayer::Default)) {
-      layer = static_cast<int32>(SecretChatLayer::Default);
-    }
-    return layer;
-  }
-
-  void ask_on_binlog_replay_finish();
-
-  void check_status(Status status);
-  void start_up() final;
-  void loop() final;
-  Status do_loop();
-  void tear_down() final;
-
-  void on_result_resendable(NetQueryPtr net_query, Promise<NetQueryPtr> promise) final;
-
-  Status run_auth();
-  void run_pfs();
-  void run_fill_gaps();
-  void on_send_message_ack(int64 random_id);
-  Status on_delete_messages(const vector<int64> &random_ids);
-  Status on_flush_history(int32 last_message_id);
-
-  telegram_api::object_ptr<telegram_api::inputUser> get_input_user();
-  telegram_api::object_ptr<telegram_api::inputEncryptedChat> get_input_chat();
-
-  Status on_update_chat(telegram_api::encryptedChatRequested &update) TD_WARN_UNUSED_RESULT;
-  Status on_update_chat(telegram_api::encryptedChatEmpty &update) TD_WARN_UNUSED_RESULT;
-  Status on_update_chat(telegram_api::encryptedChatWaiting &update) TD_WARN_UNUSED_RESULT;
-  Status on_update_chat(telegram_api::encryptedChat &update) TD_WARN_UNUSED_RESULT;
-  Status on_update_chat(telegram_api::encryptedChatDiscarded &update) TD_WARN_UNUSED_RESULT;
-
-  Status on_update_chat(NetQueryPtr query) TD_WARN_UNUSED_RESULT;
-  Status on_update_chat(telegram_api::object_ptr<telegram_api::EncryptedChat> chat) TD_WARN_UNUSED_RESULT;
-
-  Status on_read_history(NetQueryPtr query) TD_WARN_UNUSED_RESULT;
-
-  void on_promise_error(Status error, string desc);
-
-  void get_dh_config();
-  Status on_dh_config(NetQueryPtr query) TD_WARN_UNUSED_RESULT;
-  void on_dh_config(telegram_api::messages_dhConfigNotModified &dh_not_modified);
-  void on_dh_config(telegram_api::messages_dhConfig &dh);
-
-  void do_create_chat_impl(unique_ptr<log_event::CreateSecretChat> event);
-
-  SecretChatId get_secret_chat_id() {
-    return SecretChatId(auth_state_.id);
-  }
-  UserId get_user_id() {
-    return auth_state_.user_id;
-  }
-  void send_update_ttl(int32 ttl);
-  void send_update_secret_chat();
-  void calc_key_hash();
-
-  friend inline StringBuilder &operator<<(StringBuilder &sb, const SecretChatActor::SeqNoState &state) {
-    return sb << "[" << tag("my_in_seq_no", state.my_in_seq_no) << tag("my_out_seq_no", state.my_out_seq_no)
-              << tag("his_in_seq_no", state.his_in_seq_no) << "]";
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretChatDb.cpp b/third-party/td/td/td/telegram/SecretChatDb.cpp
deleted file mode 100644
index e4e588bb55..0000000000
--- a/third-party/td/td/td/telegram/SecretChatDb.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SecretChatDb.h"
-
-namespace td {
-
-SecretChatDb::SecretChatDb(std::shared_ptr<KeyValueSyncInterface> pmc, int32 chat_id)
-    : pmc_(std::move(pmc)), chat_id_(chat_id) {
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretChatDb.h b/third-party/td/td/td/telegram/SecretChatDb.h
deleted file mode 100644
index 14f7d029b9..0000000000
--- a/third-party/td/td/td/telegram/SecretChatDb.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/KeyValueSyncInterface.h"
-
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-#include <memory>
-
-namespace td {
-
-class SecretChatDb {
- public:
-  SecretChatDb(std::shared_ptr<KeyValueSyncInterface> pmc, int32 chat_id);
-
-  // TODO: some other interface for PFS
-  // two keys should be supported
-  template <class ValueT>
-  void set_value(const ValueT &data) {
-    auto key = PSTRING() << "secret" << chat_id_ << ValueT::key();
-    pmc_->set(std::move(key), serialize(data));
-  }
-  template <class ValueT>
-  void erase_value(const ValueT &data) {
-    auto key = PSTRING() << "secret" << chat_id_ << ValueT::key();
-    pmc_->erase(std::move(key));
-  }
-  template <class ValueT>
-  Result<ValueT> get_value() {
-    ValueT value;
-    auto key = PSTRING() << "secret" << chat_id_ << ValueT::key();
-    auto value_str = pmc_->get(std::move(key));
-    TRY_STATUS(unserialize(value, value_str));
-    return std::move(value);
-  }
-
- private:
-  std::shared_ptr<KeyValueSyncInterface> pmc_;
-  int32 chat_id_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretChatId.h b/third-party/td/td/td/telegram/SecretChatId.h
deleted file mode 100644
index 908c82883c..0000000000
--- a/third-party/td/td/td/telegram/SecretChatId.h
+++ /dev/null
@@ -1,67 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-enum class SecretChatState : int32 { Unknown = -1, Waiting, Active, Closed };
-
-class SecretChatId {
-  int32 id = 0;
-
- public:
-  SecretChatId() = default;
-
-  explicit constexpr SecretChatId(int32 chat_id) : id(chat_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  SecretChatId(T chat_id) = delete;
-
-  bool is_valid() const {
-    return id != 0;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const SecretChatId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const SecretChatId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    id = parser.fetch_int();
-  }
-};
-
-struct SecretChatIdHash {
-  uint32 operator()(SecretChatId secret_chat_id) const {
-    return Hash<int32>()(secret_chat_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, SecretChatId secret_chat_id) {
-  return string_builder << "secret chat " << secret_chat_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretChatLayer.h b/third-party/td/td/td/telegram/SecretChatLayer.h
deleted file mode 100644
index 745ef1e7cd..0000000000
--- a/third-party/td/td/td/telegram/SecretChatLayer.h
+++ /dev/null
@@ -1,21 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-namespace td {
-
-enum class SecretChatLayer : int32 {
-  Default = 73,
-  Mtproto2 = 73,
-  NewEntities = 101,
-  DeleteMessagesOnClose = 123,
-  SupportBigFiles = 143,
-  SpoilerAndCustomEmojiEntities = 144,
-  Current = SpoilerAndCustomEmojiEntities
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretChatsManager.cpp b/third-party/td/td/td/telegram/SecretChatsManager.cpp
deleted file mode 100644
index 9120f0ad11..0000000000
--- a/third-party/td/td/td/telegram/SecretChatsManager.cpp
+++ /dev/null
@@ -1,496 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SecretChatsManager.h"
-
-#include "td/telegram/DhCache.h"
-#include "td/telegram/EncryptedFile.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/SecretChatEvent.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/SecretChatDb.h"
-#include "td/telegram/SequenceDispatcher.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/mtproto/DhCallback.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/binlog/BinlogInterface.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <memory>
-
-namespace td {
-
-// seq_no
-// 1.
-// x_in = 0 if we initiated secret chat.
-// x_in = 1 if other client initiated secret chat
-// x_out = 1 - x_in
-// 2. Send:
-// in_seq_no = my_in_seq_no * 2 + x_in
-// out_seq_no = my_out_seq_no * 2 + x_out
-// my_out_seq_no++;
-//
-// 3. Receive
-// fail_if (in_seq_no % 2 != (1 - x_in)), in_seq_no /= 2.
-// fail_if (out_seq_no % 2 != x_out), out_seq_no /= 2.
-// drop_if (out_seq_no < my_in_seq_no)
-// handle_gap_if(out_seq_no > my_in_seq_no)
-// my_in_seq_no++;
-//
-// fail_if(in_seq_no < his_in_seq_no)
-// his_in_seq_no = in_seq_no
-// fail_if(my_out_seq_no < his_in_seq_no)
-//
-// 4. Preventing gaps.
-// All messages must be sent in order of out_seq_no
-// Messages of older layer have imaginary seq_no = -1
-// a. TODO use invokeAfter.
-// b. Just don't send next message before server accepted previous one.
-//
-// 5. Handling gaps.
-// TODO
-// Just fail chat.
-
-SecretChatsManager::SecretChatsManager(ActorShared<> parent, bool use_secret_chats)
-    : use_secret_chats_(use_secret_chats), parent_(std::move(parent)) {
-}
-
-void SecretChatsManager::start_up() {
-  if (!use_secret_chats_) {
-    return;
-  }
-
-  class StateCallback final : public StateManager::Callback {
-   public:
-    explicit StateCallback(ActorId<SecretChatsManager> parent) : parent_(std::move(parent)) {
-    }
-    bool on_online(bool online_flag) final {
-      send_closure(parent_, &SecretChatsManager::on_online, online_flag);
-      return parent_.is_alive();
-    }
-
-   private:
-    ActorId<SecretChatsManager> parent_;
-  };
-  send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-}
-
-void SecretChatsManager::create_chat(UserId user_id, int64 user_access_hash, Promise<SecretChatId> promise) {
-  int32 random_id;
-  ActorId<SecretChatActor> actor;
-  do {
-    random_id = Random::secure_int32() & 0x7fffffff;
-    actor = create_chat_actor(random_id);
-  } while (actor.empty());
-  send_closure(actor, &SecretChatActor::create_chat, user_id, user_access_hash, random_id, std::move(promise));
-}
-
-void SecretChatsManager::cancel_chat(SecretChatId secret_chat_id, bool delete_history, Promise<> promise) {
-  auto actor = get_chat_actor(secret_chat_id.get());
-  auto safe_promise = SafePromise<>(std::move(promise), Unit());
-  send_closure(actor, &SecretChatActor::cancel_chat, delete_history, false, std::move(safe_promise));
-}
-
-void SecretChatsManager::send_message(SecretChatId secret_chat_id, tl_object_ptr<secret_api::decryptedMessage> message,
-                                      telegram_api::object_ptr<telegram_api::InputEncryptedFile> file,
-                                      Promise<> promise) {
-  // message->message_ = Random::fast_bool() ? string(1, static_cast<char>(0x80)) : "a";
-  auto actor = get_chat_actor(secret_chat_id.get());
-  auto safe_promise = SafePromise<>(std::move(promise), Status::Error(400, "Can't find secret chat"));
-  send_closure(actor, &SecretChatActor::send_message, std::move(message), std::move(file), std::move(safe_promise));
-}
-void SecretChatsManager::send_message_action(SecretChatId secret_chat_id,
-                                             tl_object_ptr<secret_api::SendMessageAction> action) {
-  auto actor = get_chat_actor(secret_chat_id.get());
-  if (actor.empty()) {
-    return;
-  }
-  send_closure(actor, &SecretChatActor::send_message_action, std::move(action));
-}
-void SecretChatsManager::send_read_history(SecretChatId secret_chat_id, int32 date, Promise<> promise) {
-  auto actor = get_chat_actor(secret_chat_id.get());
-  auto safe_promise = SafePromise<>(std::move(promise), Status::Error(400, "Can't find secret chat"));
-  send_closure(actor, &SecretChatActor::send_read_history, date, std::move(safe_promise));
-}
-void SecretChatsManager::send_open_message(SecretChatId secret_chat_id, int64 random_id, Promise<> promise) {
-  auto actor = get_chat_actor(secret_chat_id.get());
-  auto safe_promise = SafePromise<>(std::move(promise), Status::Error(400, "Can't find secret chat"));
-  send_closure(actor, &SecretChatActor::send_open_message, random_id, std::move(safe_promise));
-}
-
-void SecretChatsManager::delete_messages(SecretChatId secret_chat_id, vector<int64> random_ids, Promise<> promise) {
-  auto actor = get_chat_actor(secret_chat_id.get());
-  auto safe_promise = SafePromise<>(std::move(promise), Unit());
-  send_closure(actor, &SecretChatActor::delete_messages, std::move(random_ids), std::move(safe_promise));
-}
-
-void SecretChatsManager::delete_all_messages(SecretChatId secret_chat_id, Promise<> promise) {
-  auto actor = get_chat_actor(secret_chat_id.get());
-  auto safe_promise = SafePromise<>(std::move(promise), Unit());
-  send_closure(actor, &SecretChatActor::delete_all_messages, std::move(safe_promise));
-}
-
-void SecretChatsManager::notify_screenshot_taken(SecretChatId secret_chat_id, Promise<> promise) {
-  auto actor = get_chat_actor(secret_chat_id.get());
-  auto safe_promise = SafePromise<>(std::move(promise), Status::Error(400, "Can't find secret chat"));
-  send_closure(actor, &SecretChatActor::notify_screenshot_taken, std::move(safe_promise));
-}
-
-void SecretChatsManager::send_set_ttl_message(SecretChatId secret_chat_id, int32 ttl, int64 random_id,
-                                              Promise<> promise) {
-  auto actor = get_chat_actor(secret_chat_id.get());
-  auto safe_promise = SafePromise<>(std::move(promise), Status::Error(400, "Can't find secret chat"));
-  send_closure(actor, &SecretChatActor::send_set_ttl_message, ttl, random_id, std::move(safe_promise));
-}
-
-void SecretChatsManager::on_update_chat(tl_object_ptr<telegram_api::updateEncryption> update) {
-  if (!use_secret_chats_ || close_flag_) {
-    return;
-  }
-  PendingChatUpdate pending_update;
-  pending_update.online_process_time_ = Timestamp::now();
-  if (update->chat_->get_id() == telegram_api::encryptedChatRequested::ID) {
-#if TD_ANDROID || TD_DARWIN_IOS
-    pending_update.offline_process_time_ = Timestamp::in(1.0);
-#else
-    pending_update.online_process_time_ = Timestamp::in(2.0);
-    pending_update.offline_process_time_ = Timestamp::in(3.0);
-#endif
-  }
-  pending_update.update_ = std::move(update);
-
-  pending_chat_updates_.push_back(std::move(pending_update));
-  flush_pending_chat_updates();
-}
-
-void SecretChatsManager::do_update_chat(tl_object_ptr<telegram_api::updateEncryption> update) {
-  auto actor_id = [this, chat = update->chat_.get()] {
-    switch (chat->get_id()) {
-      case telegram_api::encryptedChatEmpty::ID:
-        return create_chat_actor(static_cast<const telegram_api::encryptedChatEmpty *>(chat)->id_);
-      case telegram_api::encryptedChatWaiting::ID:
-        return create_chat_actor(static_cast<const telegram_api::encryptedChatWaiting *>(chat)->id_);
-      case telegram_api::encryptedChatRequested::ID:
-        return create_chat_actor(static_cast<const telegram_api::encryptedChatRequested *>(chat)->id_);
-      case telegram_api::encryptedChat::ID:
-        return create_chat_actor(static_cast<const telegram_api::encryptedChat *>(chat)->id_);
-      case telegram_api::encryptedChatDiscarded::ID:
-        return get_chat_actor(static_cast<const telegram_api::encryptedChatDiscarded *>(chat)->id_);
-      default:
-        UNREACHABLE();
-        return ActorId<SecretChatActor>();
-    }
-  }();
-  send_closure(actor_id, &SecretChatActor::update_chat, std::move(update->chat_));
-}
-
-void SecretChatsManager::on_new_message(tl_object_ptr<telegram_api::EncryptedMessage> &&message_ptr,
-                                        Promise<Unit> &&promise) {
-  if (!use_secret_chats_ || close_flag_) {
-    return promise.set_value(Unit());
-  }
-  CHECK(message_ptr != nullptr);
-
-  auto event = make_unique<log_event::InboundSecretMessage>();
-  event->promise = std::move(promise);
-  switch (message_ptr->get_id()) {
-    case telegram_api::encryptedMessage::ID: {
-      auto message = telegram_api::move_object_as<telegram_api::encryptedMessage>(message_ptr);
-      event->chat_id = message->chat_id_;
-      event->date = message->date_;
-      event->encrypted_message = std::move(message->bytes_);
-      event->file = EncryptedFile::get_encrypted_file(std::move(message->file_));
-      break;
-    }
-    case telegram_api::encryptedMessageService::ID: {
-      auto message = telegram_api::move_object_as<telegram_api::encryptedMessageService>(message_ptr);
-      event->chat_id = message->chat_id_;
-      event->date = message->date_;
-      event->encrypted_message = std::move(message->bytes_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  add_inbound_message(std::move(event));
-}
-
-void SecretChatsManager::replay_binlog_event(BinlogEvent &&binlog_event) {
-  if (!use_secret_chats_) {
-    binlog_erase(G()->td_db()->get_binlog(), binlog_event.id_);
-    return;
-  }
-  auto r_message = log_event::SecretChatEvent::from_buffer_slice(binlog_event.data_as_buffer_slice());
-  LOG_IF(FATAL, r_message.is_error()) << "Failed to deserialize event: " << r_message.error();
-  auto message = r_message.move_as_ok();
-  message->set_log_event_id(binlog_event.id_);
-  LOG(INFO) << "Process binlog event " << *message;
-  switch (message->get_type()) {
-    case log_event::SecretChatEvent::Type::InboundSecretMessage:
-      return replay_inbound_message(unique_ptr<log_event::InboundSecretMessage>(
-          static_cast<log_event::InboundSecretMessage *>(message.release())));
-    case log_event::SecretChatEvent::Type::OutboundSecretMessage:
-      return replay_outbound_message(unique_ptr<log_event::OutboundSecretMessage>(
-          static_cast<log_event::OutboundSecretMessage *>(message.release())));
-    case log_event::SecretChatEvent::Type::CloseSecretChat:
-      return replay_close_chat(
-          unique_ptr<log_event::CloseSecretChat>(static_cast<log_event::CloseSecretChat *>(message.release())));
-    case log_event::SecretChatEvent::Type::CreateSecretChat:
-      return replay_create_chat(
-          unique_ptr<log_event::CreateSecretChat>(static_cast<log_event::CreateSecretChat *>(message.release())));
-    default:
-      LOG(FATAL) << "Unknown log event type " << tag("type", format::as_hex(static_cast<int32>(message->get_type())));
-  }
-}
-
-void SecretChatsManager::binlog_replay_finish() {
-  binlog_replay_finish_flag_ = true;
-  for (auto &it : id_to_actor_) {
-    send_closure(it.second, &SecretChatActor::binlog_replay_finish);
-  }
-}
-
-void SecretChatsManager::replay_inbound_message(unique_ptr<log_event::InboundSecretMessage> message) {
-  LOG(INFO) << "Replay inbound secret message in chat " << message->chat_id;
-  auto actor = get_chat_actor(message->chat_id);
-  send_closure_later(actor, &SecretChatActor::replay_inbound_message, std::move(message));
-}
-
-void SecretChatsManager::add_inbound_message(unique_ptr<log_event::InboundSecretMessage> message) {
-  LOG(INFO) << "Process inbound secret message in chat " << message->chat_id;
-
-  auto actor = get_chat_actor(message->chat_id);
-  send_closure(actor, &SecretChatActor::add_inbound_message, std::move(message));
-}
-
-void SecretChatsManager::replay_close_chat(unique_ptr<log_event::CloseSecretChat> message) {
-  LOG(INFO) << "Replay close secret chat " << message->chat_id;
-
-  auto actor = get_chat_actor(message->chat_id);
-  send_closure_later(actor, &SecretChatActor::replay_close_chat, std::move(message));
-}
-
-void SecretChatsManager::replay_create_chat(unique_ptr<log_event::CreateSecretChat> message) {
-  LOG(INFO) << "Replay create secret chat " << message->random_id;
-
-  auto actor = create_chat_actor(message->random_id);
-  send_closure_later(actor, &SecretChatActor::replay_create_chat, std::move(message));
-}
-
-void SecretChatsManager::replay_outbound_message(unique_ptr<log_event::OutboundSecretMessage> message) {
-  LOG(INFO) << "Replay outbound secret message in chat " << message->chat_id;
-
-  auto actor = get_chat_actor(message->chat_id);
-  send_closure_later(actor, &SecretChatActor::replay_outbound_message, std::move(message));
-}
-
-ActorId<SecretChatActor> SecretChatsManager::get_chat_actor(int32 id) {
-  return create_chat_actor_impl(id, false);
-}
-
-ActorId<SecretChatActor> SecretChatsManager::create_chat_actor(int32 id) {
-  return create_chat_actor_impl(id, true);
-}
-
-unique_ptr<SecretChatActor::Context> SecretChatsManager::make_secret_chat_context(int32 id) {
-  class Context final : public SecretChatActor::Context {
-   public:
-    Context(int32 id, ActorShared<SecretChatsManager> parent, unique_ptr<SecretChatDb> secret_chat_db)
-        : secret_chat_id_(SecretChatId(id)), parent_(std::move(parent)), secret_chat_db_(std::move(secret_chat_db)) {
-      sequence_dispatcher_ = create_actor<SequenceDispatcher>("SecretChat SequenceDispatcher");
-    }
-    Context(const Context &) = delete;
-    Context &operator=(const Context &) = delete;
-    Context(Context &&) = delete;
-    Context &operator=(Context &&) = delete;
-    ~Context() final {
-      send_closure(std::move(sequence_dispatcher_), &SequenceDispatcher::close_silent);
-    }
-
-    mtproto::DhCallback *dh_callback() final {
-      return DhCache::instance();
-    }
-    NetQueryCreator &net_query_creator() final {
-      return G()->net_query_creator();
-    }
-    BinlogInterface *binlog() final {
-      return G()->td_db()->get_binlog();
-    }
-    SecretChatDb *secret_chat_db() final {
-      return secret_chat_db_.get();
-    }
-    std::shared_ptr<DhConfig> dh_config() final {
-      return G()->get_dh_config();
-    }
-    void set_dh_config(std::shared_ptr<DhConfig> dh_config) final {
-      G()->set_dh_config(std::move(dh_config));
-    }
-    void send_net_query(NetQueryPtr query, ActorShared<NetQueryCallback> callback, bool ordered) final {
-      if (ordered) {
-        send_closure(sequence_dispatcher_, &SequenceDispatcher::send_with_callback, std::move(query),
-                     std::move(callback));
-      } else {
-        G()->net_query_dispatcher().dispatch_with_callback(std::move(query), std::move(callback));
-      }
-    }
-
-    bool get_config_option_boolean(const string &name) const final {
-      return G()->get_option_boolean(name);
-    }
-
-    int32 unix_time() final {
-      return G()->unix_time();
-    }
-
-    bool close_flag() final {
-      return G()->close_flag();
-    }
-
-    void on_update_secret_chat(int64 access_hash, UserId user_id, SecretChatState state, bool is_outbound, int32 ttl,
-                               int32 date, string key_hash, int32 layer, FolderId initial_folder_id) final {
-      send_closure(G()->user_manager(), &UserManager::on_update_secret_chat, secret_chat_id_, access_hash, user_id,
-                   state, is_outbound, ttl, date, key_hash, layer, initial_folder_id);
-    }
-
-    void on_inbound_message(UserId user_id, MessageId message_id, int32 date, unique_ptr<EncryptedFile> file,
-                            tl_object_ptr<secret_api::decryptedMessage> message, Promise<> promise) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_get_secret_message, secret_chat_id_, user_id,
-                         message_id, date, std::move(file), std::move(message), std::move(promise));
-    }
-
-    void on_send_message_error(int64 random_id, Status error, Promise<> promise) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_send_secret_message_error, random_id,
-                         std::move(error), std::move(promise));
-    }
-
-    void on_send_message_ack(int64 random_id) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_send_message_get_quick_ack, random_id);
-    }
-    void on_send_message_ok(int64 random_id, MessageId message_id, int32 date, unique_ptr<EncryptedFile> file,
-                            Promise<> promise) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_send_secret_message_success, random_id,
-                         message_id, date, std::move(file), std::move(promise));
-    }
-    void on_delete_messages(std::vector<int64> random_ids, Promise<> promise) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::delete_secret_messages, secret_chat_id_,
-                         std::move(random_ids), std::move(promise));
-    }
-    void on_flush_history(bool remove_from_dialog_list, MessageId message_id, Promise<> promise) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::delete_secret_chat_history, secret_chat_id_,
-                         remove_from_dialog_list, message_id, std::move(promise));
-    }
-    void on_read_message(int64 random_id, Promise<> promise) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::open_secret_message, secret_chat_id_, random_id,
-                         std::move(promise));
-    }
-    void on_screenshot_taken(UserId user_id, MessageId message_id, int32 date, int64 random_id,
-                             Promise<> promise) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_secret_chat_screenshot_taken, secret_chat_id_,
-                         user_id, message_id, date, random_id, std::move(promise));
-    }
-    void on_set_ttl(UserId user_id, MessageId message_id, int32 date, int32 ttl, int64 random_id,
-                    Promise<> promise) final {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_secret_chat_ttl_changed, secret_chat_id_,
-                         user_id, message_id, date, ttl, random_id, std::move(promise));
-    }
-
-   private:
-    SecretChatId secret_chat_id_;
-    ActorOwn<SequenceDispatcher> sequence_dispatcher_;
-    ActorShared<SecretChatsManager> parent_;
-    unique_ptr<SecretChatDb> secret_chat_db_;
-  };
-  return make_unique<Context>(id, actor_shared(this, id),
-                              td::make_unique<SecretChatDb>(G()->td_db()->get_binlog_pmc_shared(), id));
-}
-
-ActorId<SecretChatActor> SecretChatsManager::create_chat_actor_impl(int32 id, bool can_be_empty) {
-  if (id == 0) {
-    return Auto();
-  }
-  auto it_flag = id_to_actor_.emplace(id, ActorOwn<SecretChatActor>());
-  if (it_flag.second) {
-    LOG(INFO) << "Create SecretChatActor: " << tag("id", id);
-    it_flag.first->second =
-        create_actor<SecretChatActor>(PSLICE() << "SecretChat " << id, id, make_secret_chat_context(id), can_be_empty);
-    if (binlog_replay_finish_flag_) {
-      send_closure(it_flag.first->second, &SecretChatActor::binlog_replay_finish);
-    }
-  }
-  return it_flag.first->second.get();
-}
-
-void SecretChatsManager::hangup() {
-  close_flag_ = true;
-  for (auto &it : id_to_actor_) {
-    LOG(INFO) << "Ask to close SecretChatActor " << tag("id", it.first);
-    it.second.reset();
-  }
-  if (id_to_actor_.empty()) {
-    stop();
-  }
-}
-
-void SecretChatsManager::hangup_shared() {
-  CHECK(use_secret_chats_);
-  auto token = get_link_token();
-  auto it = id_to_actor_.find(static_cast<int32>(token));
-  CHECK(it != id_to_actor_.end());
-  LOG(INFO) << "Close SecretChatActor " << tag("id", it->first);
-  it->second.release();
-  id_to_actor_.erase(it);
-  if (close_flag_ && id_to_actor_.empty()) {
-    stop();
-  }
-}
-
-void SecretChatsManager::timeout_expired() {
-  flush_pending_chat_updates();
-}
-
-void SecretChatsManager::flush_pending_chat_updates() {
-  if (close_flag_ || !use_secret_chats_) {
-    return;
-  }
-  auto it = pending_chat_updates_.begin();
-  while (it != pending_chat_updates_.end() &&
-         (is_online_ ? it->online_process_time_.is_in_past() : it->offline_process_time_.is_in_past())) {
-    do_update_chat(std::move(it->update_));
-    ++it;
-  }
-  if (it != pending_chat_updates_.end()) {
-    set_timeout_at(is_online_ ? it->online_process_time_.at() : it->offline_process_time_.at());
-  }
-  pending_chat_updates_.erase(pending_chat_updates_.begin(), it);
-}
-
-void SecretChatsManager::on_online(bool is_online) {
-  if (is_online_ == is_online) {
-    return;
-  }
-
-  is_online_ = is_online;
-  flush_pending_chat_updates();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretChatsManager.h b/third-party/td/td/td/telegram/SecretChatsManager.h
deleted file mode 100644
index 166002b9c3..0000000000
--- a/third-party/td/td/td/telegram/SecretChatsManager.h
+++ /dev/null
@@ -1,88 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/logevent/SecretChatEvent.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretChatActor.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Time.h"
-
-#include <map>
-
-namespace td {
-
-struct BinlogEvent;
-
-class SecretChatsManager final : public Actor {
- public:
-  SecretChatsManager(ActorShared<> parent, bool use_secret_chats);
-
-  // proxy query to corresponding SecretChatActor
-  void on_update_chat(tl_object_ptr<telegram_api::updateEncryption> update);
-  void on_new_message(tl_object_ptr<telegram_api::EncryptedMessage> &&message_ptr, Promise<Unit> &&promise);
-
-  void create_chat(UserId user_id, int64 user_access_hash, Promise<SecretChatId> promise);
-  void cancel_chat(SecretChatId secret_chat_id, bool delete_history, Promise<> promise);
-  void send_message(SecretChatId secret_chat_id, tl_object_ptr<secret_api::decryptedMessage> message,
-                    telegram_api::object_ptr<telegram_api::InputEncryptedFile> file, Promise<> promise);
-  void send_message_action(SecretChatId secret_chat_id, tl_object_ptr<secret_api::SendMessageAction> action);
-  void send_read_history(SecretChatId secret_chat_id, int32 date, Promise<> promise);
-  void send_open_message(SecretChatId secret_chat_id, int64 random_id, Promise<> promise);
-  void delete_messages(SecretChatId secret_chat_id, vector<int64> random_ids, Promise<> promise);
-  void delete_all_messages(SecretChatId secret_chat_id, Promise<> promise);
-  void notify_screenshot_taken(SecretChatId secret_chat_id, Promise<> promise);
-  void send_set_ttl_message(SecretChatId secret_chat_id, int32 ttl, int64 random_id, Promise<> promise);
-
-  // binlog replay
-  void replay_binlog_event(BinlogEvent &&binlog_event);
-  void binlog_replay_finish();
-
- private:
-  bool binlog_replay_finish_flag_ = false;
-  bool use_secret_chats_ = false;
-  bool close_flag_ = false;
-  ActorShared<> parent_;
-  std::map<int32, ActorOwn<SecretChatActor>> id_to_actor_;
-
-  bool is_online_{false};
-
-  struct PendingChatUpdate {
-    Timestamp online_process_time_;
-    Timestamp offline_process_time_;
-    telegram_api::object_ptr<telegram_api::updateEncryption> update_;
-  };
-  vector<PendingChatUpdate> pending_chat_updates_;
-  void flush_pending_chat_updates();
-  void do_update_chat(tl_object_ptr<telegram_api::updateEncryption> update);
-
-  void replay_inbound_message(unique_ptr<log_event::InboundSecretMessage> message);
-  void add_inbound_message(unique_ptr<log_event::InboundSecretMessage> message);
-  void replay_outbound_message(unique_ptr<log_event::OutboundSecretMessage> message);
-  void replay_close_chat(unique_ptr<log_event::CloseSecretChat> message);
-  void replay_create_chat(unique_ptr<log_event::CreateSecretChat> message);
-
-  unique_ptr<SecretChatActor::Context> make_secret_chat_context(int32 id);
-  ActorId<SecretChatActor> get_chat_actor(int32 id);
-  ActorId<SecretChatActor> create_chat_actor(int32 id);
-  ActorId<SecretChatActor> create_chat_actor_impl(int32 id, bool can_be_empty);
-
-  void start_up() final;
-  void hangup() final;
-  void hangup_shared() final;
-  void timeout_expired() final;
-
-  void on_online(bool is_online);
-};
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretInputMedia.cpp b/third-party/td/td/td/telegram/SecretInputMedia.cpp
deleted file mode 100644
index 20761029d5..0000000000
--- a/third-party/td/td/td/telegram/SecretInputMedia.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SecretInputMedia.h"
-
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/SecretChatLayer.h"
-
-#include "td/utils/misc.h"
-
-namespace td {
-
-SecretInputMedia::SecretInputMedia(telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                   BufferSlice &&thumbnail, Dimensions thumbnail_dimensions, const string &mime_type,
-                                   const FileView &file_view,
-                                   vector<secret_api::object_ptr<secret_api::DocumentAttribute>> &&attributes,
-                                   const string &caption, int32 layer)
-    : input_file_(std::move(input_file)) {
-  auto &encryption_key = file_view.encryption_key();
-  auto size = file_view.size();
-  if (layer >= static_cast<int32>(SecretChatLayer::SupportBigFiles)) {
-    decrypted_media_ = secret_api::make_object<secret_api::decryptedMessageMediaDocument>(
-        std::move(thumbnail), thumbnail_dimensions.width, thumbnail_dimensions.height, mime_type, size,
-        BufferSlice(encryption_key.key_slice()), BufferSlice(encryption_key.iv_slice()), std::move(attributes),
-        caption);
-    return;
-  }
-  if (size <= (2000 << 20)) {
-    decrypted_media_ = secret_api::make_object<secret_api::decryptedMessageMediaDocument46>(
-        std::move(thumbnail), thumbnail_dimensions.width, thumbnail_dimensions.height, mime_type,
-        narrow_cast<int32>(size), BufferSlice(encryption_key.key_slice()), BufferSlice(encryption_key.iv_slice()),
-        std::move(attributes), caption);
-    return;
-  }
-  input_file_ = nullptr;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecretInputMedia.h b/third-party/td/td/td/telegram/SecretInputMedia.h
deleted file mode 100644
index e8ab8442cc..0000000000
--- a/third-party/td/td/td/telegram/SecretInputMedia.h
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-
-namespace td {
-
-class FileView;
-
-struct SecretInputMedia {
-  telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file_;
-  secret_api::object_ptr<secret_api::DecryptedMessageMedia> decrypted_media_;
-
-  SecretInputMedia() = default;
-
-  SecretInputMedia(telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                   secret_api::object_ptr<secret_api::DecryptedMessageMedia> decrypted_media)
-      : input_file_(std::move(input_file)), decrypted_media_(std::move(decrypted_media)) {
-  }
-
-  SecretInputMedia(telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file, BufferSlice &&thumbnail,
-                   Dimensions thumbnail_dimensions, const string &mime_type, const FileView &file_view,
-                   vector<secret_api::object_ptr<secret_api::DocumentAttribute>> &&attributes, const string &caption,
-                   int32 layer);
-
-  bool empty() const {
-    return decrypted_media_ == nullptr;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecureManager.cpp b/third-party/td/td/td/telegram/SecureManager.cpp
deleted file mode 100644
index e774073bb1..0000000000
--- a/third-party/td/td/td/telegram/SecureManager.cpp
+++ /dev/null
@@ -1,1333 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SecureManager.h"
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/optional.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <limits>
-#include <memory>
-
-namespace td {
-
-class GetSecureValue final : public NetQueryCallback {
- public:
-  GetSecureValue(ActorShared<SecureManager> parent, std::string password, SecureValueType type,
-                 Promise<SecureValueWithCredentials> promise);
-
- private:
-  ActorShared<SecureManager> parent_;
-  string password_;
-  SecureValueType type_;
-  Promise<SecureValueWithCredentials> promise_;
-  optional<EncryptedSecureValue> encrypted_secure_value_;
-  optional<secure_storage::Secret> secret_;
-
-  void on_error(Status error);
-  void on_secret(Result<secure_storage::Secret> r_secret, bool dummy);
-  void loop() final;
-  void start_up() final;
-
-  void on_result(NetQueryPtr query) final;
-};
-
-class GetAllSecureValues final : public NetQueryCallback {
- public:
-  GetAllSecureValues(ActorShared<SecureManager> parent, std::string password, Promise<TdApiSecureValues> promise);
-
- private:
-  ActorShared<SecureManager> parent_;
-  string password_;
-  Promise<TdApiSecureValues> promise_;
-  optional<vector<EncryptedSecureValue>> encrypted_secure_values_;
-  optional<secure_storage::Secret> secret_;
-
-  void on_error(Status error);
-  void on_secret(Result<secure_storage::Secret> r_secret, bool dummy);
-  void loop() final;
-  void start_up() final;
-
-  void on_result(NetQueryPtr query) final;
-};
-
-class SetSecureValue final : public NetQueryCallback {
- public:
-  SetSecureValue(ActorShared<SecureManager> parent, string password, SecureValue secure_value,
-                 Promise<SecureValueWithCredentials> promise);
-
- private:
-  ActorShared<SecureManager> parent_;
-  string password_;
-  SecureValue secure_value_;
-  Promise<SecureValueWithCredentials> promise_;
-  optional<secure_storage::Secret> secret_;
-
-  size_t files_left_to_upload_ = 0;
-  uint32 upload_generation_{0};
-  vector<SecureInputFile> files_to_upload_;
-  vector<SecureInputFile> translations_to_upload_;
-  optional<SecureInputFile> front_side_;
-  optional<SecureInputFile> reverse_side_;
-  optional<SecureInputFile> selfie_;
-
-  class UploadCallback;
-  std::shared_ptr<UploadCallback> upload_callback_;
-
-  enum class State : int32 { WaitSecret, WaitSetValue } state_ = State::WaitSecret;
-
-  class UploadCallback final : public FileManager::UploadCallback {
-   public:
-    UploadCallback(ActorId<SetSecureValue> actor_id, uint32 upload_generation);
-
-   private:
-    ActorId<SetSecureValue> actor_id_;
-    uint32 upload_generation_;
-
-    void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final;
-
-    void on_upload_secure_ok(FileUploadId file_upload_id,
-                             telegram_api::object_ptr<telegram_api::InputSecureFile> input_file) final;
-
-    void on_upload_error(FileUploadId file_upload_id, Status error) final;
-  };
-
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputSecureFile> input_file,
-                    uint32 upload_generation);
-
-  void on_upload_error(FileUploadId file_upload_id, Status error, uint32 upload_generation);
-
-  void on_error(Status error);
-
-  void on_secret(Result<secure_storage::Secret> r_secret, bool x);
-
-  void start_up() final;
-  void hangup() final;
-  void tear_down() final;
-
-  void loop() final;
-  void on_result(NetQueryPtr query) final;
-
-  void load_secret();
-  void cancel_upload();
-  void start_upload_all();
-  void start_upload(FileManager *file_manager, FileId &file_id, SecureInputFile &info);
-  static void merge(FileManager *file_manager, FileId file_id, EncryptedSecureFile &encrypted_file);
-};
-
-class SetSecureValueErrorsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetSecureValueErrorsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputUser> input_user,
-            vector<tl_object_ptr<telegram_api::SecureValueError>> input_errors) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::users_setSecureValueErrors(std::move(input_user), std::move(input_errors))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::users_setSecureValueErrors>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for SetSecureValueErrorsQuery: " << ptr;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.code() != 0) {
-      promise_.set_error(std::move(status));
-    } else {
-      promise_.set_error(Status::Error(400, status.message()));
-    }
-  }
-};
-
-GetSecureValue::GetSecureValue(ActorShared<SecureManager> parent, std::string password, SecureValueType type,
-                               Promise<SecureValueWithCredentials> promise)
-    : parent_(std::move(parent)), password_(std::move(password)), type_(type), promise_(std::move(promise)) {
-}
-
-void GetSecureValue::on_error(Status error) {
-  if (error.message() == "SECURE_SECRET_REQUIRED") {
-    send_closure(G()->password_manager(), &PasswordManager::drop_cached_secret);
-  }
-  if (error.code() > 0) {
-    promise_.set_error(std::move(error));
-  } else {
-    promise_.set_error(Status::Error(400, error.message()));
-  }
-  stop();
-}
-
-void GetSecureValue::on_secret(Result<secure_storage::Secret> r_secret, bool dummy) {
-  if (r_secret.is_error()) {
-    if (!G()->is_expected_error(r_secret.error())) {
-      LOG(ERROR) << "Receive error instead of secret: " << r_secret.error();
-    }
-    return on_error(r_secret.move_as_error());
-  }
-  secret_ = r_secret.move_as_ok();
-  loop();
-}
-
-void GetSecureValue::loop() {
-  if (!encrypted_secure_value_ || !secret_) {
-    return;
-  }
-
-  auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-  auto r_secure_value = decrypt_secure_value(file_manager, *secret_, *encrypted_secure_value_);
-  if (r_secure_value.is_error()) {
-    return on_error(r_secure_value.move_as_error());
-  }
-
-  send_closure(parent_, &SecureManager::on_get_secure_value, r_secure_value.ok());
-
-  promise_.set_value(r_secure_value.move_as_ok());
-  stop();
-}
-
-void GetSecureValue::start_up() {
-  std::vector<telegram_api::object_ptr<telegram_api::SecureValueType>> types;
-  types.push_back(get_input_secure_value_type(type_));
-
-  auto query = G()->net_query_creator().create(telegram_api::account_getSecureValue(std::move(types)));
-
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-
-  send_closure(G()->password_manager(), &PasswordManager::get_secure_secret, password_,
-               PromiseCreator::lambda([actor_id = actor_id(this)](Result<secure_storage::Secret> r_secret) {
-                 send_closure(actor_id, &GetSecureValue::on_secret, std::move(r_secret), true);
-               }));
-}
-
-void GetSecureValue::on_result(NetQueryPtr query) {
-  auto r_result = fetch_result<telegram_api::account_getSecureValue>(std::move(query));
-  if (r_result.is_error()) {
-    return on_error(r_result.move_as_error());
-  }
-  auto result = r_result.move_as_ok();
-  if (result.empty()) {
-    return on_error(Status::Error(404, "Not Found"));
-  }
-  if (result.size() != 1) {
-    return on_error(Status::Error(PSLICE() << "Expected result of size 1, but receive of size " << result.size()));
-  }
-  encrypted_secure_value_ =
-      get_encrypted_secure_value(G()->td().get_actor_unsafe()->file_manager_.get(), std::move(result[0]));
-  if (encrypted_secure_value_.value().type == SecureValueType::None) {
-    return on_error(Status::Error(404, "Not Found"));
-  }
-  loop();
-}
-
-GetAllSecureValues::GetAllSecureValues(ActorShared<SecureManager> parent, std::string password,
-                                       Promise<TdApiSecureValues> promise)
-    : parent_(std::move(parent)), password_(std::move(password)), promise_(std::move(promise)) {
-}
-
-void GetAllSecureValues::on_error(Status error) {
-  if (error.message() == "SECURE_SECRET_REQUIRED") {
-    send_closure(G()->password_manager(), &PasswordManager::drop_cached_secret);
-  }
-  if (error.code() > 0) {
-    promise_.set_error(std::move(error));
-  } else {
-    promise_.set_error(Status::Error(400, error.message()));
-  }
-  stop();
-}
-
-void GetAllSecureValues::on_secret(Result<secure_storage::Secret> r_secret, bool dummy) {
-  if (r_secret.is_error()) {
-    if (!G()->is_expected_error(r_secret.error())) {
-      LOG(ERROR) << "Receive error instead of secret: " << r_secret.error();
-    }
-    return on_error(r_secret.move_as_error());
-  }
-  secret_ = r_secret.move_as_ok();
-  loop();
-}
-
-void GetAllSecureValues::loop() {
-  if (!encrypted_secure_values_ || !secret_) {
-    return;
-  }
-
-  auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-  auto r_secure_values = decrypt_secure_values(file_manager, *secret_, *encrypted_secure_values_);
-  if (r_secure_values.is_error()) {
-    return on_error(r_secure_values.move_as_error());
-  }
-
-  for (auto &secure_value : r_secure_values.ok()) {
-    send_closure(parent_, &SecureManager::on_get_secure_value, secure_value);
-  }
-
-  auto secure_values = transform(r_secure_values.move_as_ok(),
-                                 [](SecureValueWithCredentials &&value) { return std::move(value.value); });
-  promise_.set_value(get_passport_elements_object(file_manager, secure_values));
-  stop();
-}
-
-void GetAllSecureValues::start_up() {
-  auto query = G()->net_query_creator().create(telegram_api::account_getAllSecureValues());
-
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-
-  send_closure(G()->password_manager(), &PasswordManager::get_secure_secret, password_,
-               PromiseCreator::lambda([actor_id = actor_id(this)](Result<secure_storage::Secret> r_secret) {
-                 send_closure(actor_id, &GetAllSecureValues::on_secret, std::move(r_secret), true);
-               }));
-}
-
-void GetAllSecureValues::on_result(NetQueryPtr query) {
-  auto r_result = fetch_result<telegram_api::account_getAllSecureValues>(std::move(query));
-  if (r_result.is_error()) {
-    return on_error(r_result.move_as_error());
-  }
-  encrypted_secure_values_ =
-      get_encrypted_secure_values(G()->td().get_actor_unsafe()->file_manager_.get(), r_result.move_as_ok());
-  loop();
-}
-
-SetSecureValue::SetSecureValue(ActorShared<SecureManager> parent, string password, SecureValue secure_value,
-                               Promise<SecureValueWithCredentials> promise)
-    : parent_(std::move(parent))
-    , password_(std::move(password))
-    , secure_value_(std::move(secure_value))
-    , promise_(std::move(promise)) {
-}
-
-SetSecureValue::UploadCallback::UploadCallback(ActorId<SetSecureValue> actor_id, uint32 upload_generation)
-    : actor_id_(actor_id), upload_generation_(upload_generation) {
-}
-
-void SetSecureValue::UploadCallback::on_upload_ok(FileUploadId file_upload_id,
-                                                  telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  CHECK(input_file == nullptr);
-  send_closure_later(actor_id_, &SetSecureValue::on_upload_ok, file_upload_id, nullptr, upload_generation_);
-}
-
-void SetSecureValue::UploadCallback::on_upload_secure_ok(
-    FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputSecureFile> input_file) {
-  send_closure_later(actor_id_, &SetSecureValue::on_upload_ok, file_upload_id, std::move(input_file),
-                     upload_generation_);
-}
-
-void SetSecureValue::UploadCallback::on_upload_error(FileUploadId file_upload_id, Status error) {
-  send_closure_later(actor_id_, &SetSecureValue::on_upload_error, file_upload_id, std::move(error), upload_generation_);
-}
-
-void SetSecureValue::on_upload_ok(FileUploadId file_upload_id,
-                                  telegram_api::object_ptr<telegram_api::InputSecureFile> input_file,
-                                  uint32 upload_generation) {
-  if (upload_generation_ != upload_generation) {
-    send_closure(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-    return;
-  }
-  SecureInputFile *info_ptr = nullptr;
-  for (auto &info : files_to_upload_) {
-    if (info.file_upload_id == file_upload_id) {
-      info_ptr = &info;
-      break;
-    }
-  }
-  for (auto &info : translations_to_upload_) {
-    if (info.file_upload_id == file_upload_id) {
-      info_ptr = &info;
-      break;
-    }
-  }
-  if (front_side_ && front_side_.value().file_upload_id == file_upload_id) {
-    info_ptr = &front_side_.value();
-  }
-  if (reverse_side_ && reverse_side_.value().file_upload_id == file_upload_id) {
-    info_ptr = &reverse_side_.value();
-  }
-  if (selfie_ && selfie_.value().file_upload_id == file_upload_id) {
-    info_ptr = &selfie_.value();
-  }
-  CHECK(info_ptr);
-  auto &info = *info_ptr;
-  CHECK(!info.input_file);
-  info.input_file = std::move(input_file);
-  CHECK(files_left_to_upload_ != 0);
-  files_left_to_upload_--;
-  loop();
-}
-
-void SetSecureValue::on_upload_error(FileUploadId file_upload_id, Status error, uint32 upload_generation) {
-  if (upload_generation_ != upload_generation) {
-    return;
-  }
-  on_error(std::move(error));
-}
-
-void SetSecureValue::on_error(Status error) {
-  if (error.code() > 0) {
-    promise_.set_error(std::move(error));
-  } else {
-    promise_.set_error(Status::Error(400, error.message()));
-  }
-  stop();
-}
-
-void SetSecureValue::on_secret(Result<secure_storage::Secret> r_secret, bool x) {
-  if (r_secret.is_error()) {
-    if (!G()->is_expected_error(r_secret.error())) {
-      LOG(ERROR) << "Receive error instead of secret: " << r_secret.error();
-    }
-    return on_error(r_secret.move_as_error());
-  }
-  secret_ = r_secret.move_as_ok();
-  loop();
-}
-
-void SetSecureValue::start_up() {
-  load_secret();
-  auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-
-  // Remove duplicate files
-  FileId front_side_file_id;
-  if (secure_value_.front_side.file_id.is_valid()) {
-    front_side_file_id = file_manager->get_file_view(secure_value_.front_side.file_id).get_main_file_id();
-    front_side_ = SecureInputFile();
-  }
-  FileId reverse_side_file_id;
-  if (secure_value_.reverse_side.file_id.is_valid()) {
-    reverse_side_file_id = file_manager->get_file_view(secure_value_.reverse_side.file_id).get_main_file_id();
-    reverse_side_ = SecureInputFile();
-    if (front_side_file_id == reverse_side_file_id) {
-      return on_error(Status::Error(400, "Front side and reverse side must be different"));
-    }
-  }
-  FileId selfie_file_id;
-  if (secure_value_.selfie.file_id.is_valid()) {
-    selfie_file_id = file_manager->get_file_view(secure_value_.selfie.file_id).get_main_file_id();
-    selfie_ = SecureInputFile();
-    if (front_side_file_id == selfie_file_id) {
-      return on_error(Status::Error(400, "Front side and selfie must be different"));
-    }
-    if (reverse_side_file_id == selfie_file_id) {
-      return on_error(Status::Error(400, "Reverse side and selfie must be different"));
-    }
-  }
-
-  if (!secure_value_.files.empty()) {
-    CHECK(!front_side_file_id.is_valid());
-    CHECK(!reverse_side_file_id.is_valid());
-    CHECK(!selfie_file_id.is_valid());
-    for (auto it = secure_value_.files.begin(); it != secure_value_.files.end();) {
-      auto file_id = file_manager->get_file_view(it->file_id).get_main_file_id();
-      bool is_duplicate = false;
-      for (auto other_it = secure_value_.files.begin(); other_it != it; ++other_it) {
-        if (file_id == file_manager->get_file_view(other_it->file_id).get_main_file_id()) {
-          is_duplicate = true;
-          break;
-        }
-      }
-      if (is_duplicate) {
-        it = secure_value_.files.erase(it);
-      } else {
-        ++it;
-      }
-    }
-  }
-  if (!secure_value_.translations.empty()) {
-    for (auto it = secure_value_.translations.begin(); it != secure_value_.translations.end();) {
-      auto file_id = file_manager->get_file_view(it->file_id).get_main_file_id();
-      bool is_duplicate = file_id == front_side_file_id || file_id == reverse_side_file_id || file_id == selfie_file_id;
-      for (auto other_it = secure_value_.translations.begin(); other_it != it; ++other_it) {
-        if (file_id == file_manager->get_file_view(other_it->file_id).get_main_file_id()) {
-          is_duplicate = true;
-          break;
-        }
-      }
-      for (auto &dated_file : secure_value_.files) {
-        if (file_id == file_manager->get_file_view(dated_file.file_id).get_main_file_id()) {
-          is_duplicate = true;
-          break;
-        }
-      }
-      if (is_duplicate) {
-        it = secure_value_.translations.erase(it);
-      } else {
-        ++it;
-      }
-    }
-  }
-
-  start_upload_all();
-}
-
-void SetSecureValue::load_secret() {
-  secret_ = {};
-  send_closure(G()->password_manager(), &PasswordManager::get_secure_secret, password_,
-               PromiseCreator::lambda([actor_id = actor_id(this)](Result<secure_storage::Secret> r_secret) {
-                 send_closure(actor_id, &SetSecureValue::on_secret, std::move(r_secret), true);
-               }));
-}
-
-void SetSecureValue::cancel_upload() {
-  upload_generation_++;
-  auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-  if (file_manager == nullptr) {
-    return;
-  }
-  for (auto &file_info : files_to_upload_) {
-    file_manager->cancel_upload(file_info.file_upload_id);
-  }
-  for (auto &file_info : translations_to_upload_) {
-    file_manager->cancel_upload(file_info.file_upload_id);
-  }
-  if (front_side_) {
-    file_manager->cancel_upload(front_side_.value().file_upload_id);
-  }
-  if (reverse_side_) {
-    file_manager->cancel_upload(reverse_side_.value().file_upload_id);
-  }
-  if (selfie_) {
-    file_manager->cancel_upload(selfie_.value().file_upload_id);
-  }
-  files_left_to_upload_ = 0;
-}
-
-void SetSecureValue::start_upload_all() {
-  if (files_left_to_upload_ != 0) {
-    cancel_upload();
-  }
-  upload_generation_++;
-  upload_callback_ = std::make_shared<UploadCallback>(actor_id(this), upload_generation_);
-
-  auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-  files_to_upload_.resize(secure_value_.files.size());
-  for (size_t i = 0; i < files_to_upload_.size(); i++) {
-    start_upload(file_manager, secure_value_.files[i].file_id, files_to_upload_[i]);
-  }
-  translations_to_upload_.resize(secure_value_.translations.size());
-  for (size_t i = 0; i < translations_to_upload_.size(); i++) {
-    start_upload(file_manager, secure_value_.translations[i].file_id, translations_to_upload_[i]);
-  }
-  if (front_side_) {
-    start_upload(file_manager, secure_value_.front_side.file_id, front_side_.value());
-  }
-  if (reverse_side_) {
-    start_upload(file_manager, secure_value_.reverse_side.file_id, reverse_side_.value());
-  }
-  if (selfie_) {
-    start_upload(file_manager, secure_value_.selfie.file_id, selfie_.value());
-  }
-}
-
-void SetSecureValue::start_upload(FileManager *file_manager, FileId &file_id, SecureInputFile &info) {
-  auto file_view = file_manager->get_file_view(file_id);
-  bool force = false;
-  if (!info.file_upload_id.is_valid()) {
-    if (!file_view.is_encrypted_secure()) {
-      file_id = file_manager->copy_file_id(file_id, FileType::SecureEncrypted, DialogId(), "SetSecureValue");
-    }
-
-    info.file_upload_id = {file_id, FileManager::get_internal_upload_id()};
-  } else {
-    force = true;
-  }
-  file_manager->resume_upload(info.file_upload_id, {}, upload_callback_, 1, 0, force);
-  files_left_to_upload_++;
-}
-
-void SetSecureValue::loop() {
-  if (state_ == State::WaitSecret) {
-    if (!secret_) {
-      return;
-    }
-    if (files_left_to_upload_ != 0) {
-      return;
-    }
-    auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-    auto input_secure_value =
-        get_input_secure_value_object(file_manager, encrypt_secure_value(file_manager, *secret_, secure_value_),
-                                      files_to_upload_, front_side_, reverse_side_, selfie_, translations_to_upload_);
-    auto save_secure_value =
-        telegram_api::account_saveSecureValue(std::move(input_secure_value), secret_.value().get_hash());
-    auto query = G()->net_query_creator().create(save_secure_value);
-
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-    state_ = State::WaitSetValue;
-  }
-}
-
-void SetSecureValue::hangup() {
-  on_error(Status::Error(406, "Request canceled"));
-}
-
-void SetSecureValue::tear_down() {
-  cancel_upload();
-}
-
-void SetSecureValue::on_result(NetQueryPtr query) {
-  auto r_result = fetch_result<telegram_api::account_saveSecureValue>(std::move(query));
-  if (r_result.is_error()) {
-    if (r_result.error().message() == "SECURE_SECRET_REQUIRED") {
-      state_ = State::WaitSecret;
-      send_closure(G()->password_manager(), &PasswordManager::drop_cached_secret);
-      load_secret();
-      return loop();
-    }
-    if (r_result.error().message() == "SECURE_SECRET_INVALID") {
-      state_ = State::WaitSecret;
-      start_upload_all();
-      return loop();
-    }
-    return on_error(r_result.move_as_error());
-  }
-  auto result = r_result.move_as_ok();
-  auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-  auto encrypted_secure_value = get_encrypted_secure_value(file_manager, std::move(result));
-  if (encrypted_secure_value.type == SecureValueType::None) {
-    return on_error(Status::Error(500, "Receive invalid Telegram Passport element"));
-  }
-  if (secure_value_.files.size() != encrypted_secure_value.files.size()) {
-    return on_error(Status::Error(500, "Different file count"));
-  }
-  if (secure_value_.translations.size() != encrypted_secure_value.translations.size()) {
-    return on_error(Status::Error(500, "Different translation count"));
-  }
-  for (size_t i = 0; i < secure_value_.files.size(); i++) {
-    merge(file_manager, secure_value_.files[i].file_id, encrypted_secure_value.files[i]);
-  }
-  if (secure_value_.front_side.file_id.is_valid() && encrypted_secure_value.front_side.file.file_id.is_valid()) {
-    merge(file_manager, secure_value_.front_side.file_id, encrypted_secure_value.front_side);
-  }
-  if (secure_value_.reverse_side.file_id.is_valid() && encrypted_secure_value.reverse_side.file.file_id.is_valid()) {
-    merge(file_manager, secure_value_.reverse_side.file_id, encrypted_secure_value.reverse_side);
-  }
-  if (secure_value_.selfie.file_id.is_valid() && encrypted_secure_value.selfie.file.file_id.is_valid()) {
-    merge(file_manager, secure_value_.selfie.file_id, encrypted_secure_value.selfie);
-  }
-  for (size_t i = 0; i < secure_value_.translations.size(); i++) {
-    merge(file_manager, secure_value_.translations[i].file_id, encrypted_secure_value.translations[i]);
-  }
-  auto r_secure_value = decrypt_secure_value(file_manager, *secret_, encrypted_secure_value);
-  if (r_secure_value.is_error()) {
-    return on_error(r_secure_value.move_as_error());
-  }
-
-  send_closure(parent_, &SecureManager::on_get_secure_value, r_secure_value.ok());
-
-  promise_.set_value(r_secure_value.move_as_ok());
-  stop();
-}
-
-void SetSecureValue::merge(FileManager *file_manager, FileId file_id, EncryptedSecureFile &encrypted_file) {
-  auto file_view = file_manager->get_file_view(file_id);
-  CHECK(!file_view.empty());
-  CHECK(file_view.encryption_key().has_value_hash());
-  if (file_view.encryption_key().value_hash().as_slice() != encrypted_file.file_hash) {
-    LOG(ERROR) << "Hash mismatch";
-    return;
-  }
-  LOG_STATUS(file_manager->merge(encrypted_file.file.file_id, file_id));
-}
-
-class DeleteSecureValue final : public NetQueryCallback {
- public:
-  DeleteSecureValue(ActorShared<SecureManager> parent, SecureValueType type, Promise<Unit> promise)
-      : parent_(std::move(parent)), type_(std::move(type)), promise_(std::move(promise)) {
-  }
-
- private:
-  ActorShared<SecureManager> parent_;
-  SecureValueType type_;
-  Promise<Unit> promise_;
-
-  void start_up() final {
-    std::vector<telegram_api::object_ptr<telegram_api::SecureValueType>> types;
-    types.push_back(get_input_secure_value_type(type_));
-    auto query = G()->net_query_creator().create(telegram_api::account_deleteSecureValue(std::move(types)));
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-  }
-
-  void on_result(NetQueryPtr query) final {
-    auto r_result = fetch_result<telegram_api::account_deleteSecureValue>(std::move(query));
-    if (r_result.is_error()) {
-      promise_.set_error(r_result.move_as_error());
-    } else {
-      promise_.set_value(Unit());
-    }
-    stop();
-  }
-};
-
-class GetPassportAuthorizationForm final : public NetQueryCallback {
- public:
-  GetPassportAuthorizationForm(ActorShared<SecureManager> parent, UserId bot_user_id, string scope, string public_key,
-                               Promise<telegram_api::object_ptr<telegram_api::account_authorizationForm>> promise)
-      : parent_(std::move(parent))
-      , bot_user_id_(bot_user_id)
-      , scope_(std::move(scope))
-      , public_key_(std::move(public_key))
-      , promise_(std::move(promise)) {
-  }
-
- private:
-  ActorShared<SecureManager> parent_;
-  UserId bot_user_id_;
-  string scope_;
-  string public_key_;
-  Promise<telegram_api::object_ptr<telegram_api::account_authorizationForm>> promise_;
-
-  void on_error(Status error) {
-    if (error.code() > 0) {
-      promise_.set_error(std::move(error));
-    } else {
-      promise_.set_error(Status::Error(400, error.message()));
-    }
-    stop();
-  }
-
-  void start_up() final {
-    auto account_get_authorization_form =
-        telegram_api::account_getAuthorizationForm(bot_user_id_.get(), std::move(scope_), std::move(public_key_));
-    auto query = G()->net_query_creator().create(account_get_authorization_form);
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-  }
-
-  void on_result(NetQueryPtr query) final {
-    auto r_result = fetch_result<telegram_api::account_getAuthorizationForm>(std::move(query));
-    if (r_result.is_error()) {
-      return on_error(r_result.move_as_error());
-    }
-    promise_.set_value(r_result.move_as_ok());
-    stop();
-  }
-};
-
-SecureManager::SecureManager(ActorShared<> parent) : parent_(std::move(parent)) {
-}
-
-void SecureManager::get_secure_value(std::string password, SecureValueType type, Promise<TdApiSecureValue> promise) {
-  auto new_promise =
-      PromiseCreator::lambda([promise = std::move(promise)](Result<SecureValueWithCredentials> r_secure_value) mutable {
-        if (r_secure_value.is_error()) {
-          return promise.set_error(r_secure_value.move_as_error());
-        }
-
-        auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-        if (file_manager == nullptr) {
-          return promise.set_value(nullptr);
-        }
-        auto r_passport_element = get_passport_element_object(file_manager, r_secure_value.move_as_ok().value);
-        if (r_passport_element.is_error()) {
-          LOG(ERROR) << "Failed to get passport element object: " << r_passport_element.error();
-          return promise.set_value(nullptr);
-        }
-        promise.set_value(r_passport_element.move_as_ok());
-      });
-
-  refcnt_++;
-  create_actor<GetSecureValue>("GetSecureValue", actor_shared(this), std::move(password), type, std::move(new_promise))
-      .release();
-}
-
-class GetPassportConfig final : public NetQueryCallback {
- public:
-  GetPassportConfig(ActorShared<SecureManager> parent, string country_code,
-                    Promise<td_api::object_ptr<td_api::text>> promise)
-      : parent_(std::move(parent)), country_code_(std::move(country_code)), promise_(std::move(promise)) {
-  }
-
- private:
-  ActorShared<SecureManager> parent_;
-  string country_code_;
-  Promise<td_api::object_ptr<td_api::text>> promise_;
-
-  void start_up() final {
-    auto query = G()->net_query_creator().create(telegram_api::help_getPassportConfig(0));
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-  }
-
-  void on_result(NetQueryPtr query) final {
-    auto r_result = fetch_result<telegram_api::help_getPassportConfig>(std::move(query));
-    if (r_result.is_error()) {
-      promise_.set_error(r_result.move_as_error());
-      stop();
-      return;
-    }
-
-    auto config = r_result.move_as_ok();
-    switch (config->get_id()) {
-      case telegram_api::help_passportConfigNotModified::ID:
-        promise_.set_error(Status::Error(500, "Wrong server response"));
-        break;
-      case telegram_api::help_passportConfig::ID: {
-        const string &data =
-            static_cast<const telegram_api::help_passportConfig *>(config.get())->countries_langs_->data_;
-        auto begin_pos = data.find((PSLICE() << '"' << country_code_ << "\":\"").c_str());
-        if (begin_pos == string::npos) {
-          promise_.set_value(nullptr);
-          break;
-        }
-
-        begin_pos += 4 + country_code_.size();
-        auto end_pos = data.find('"', begin_pos);
-        if (end_pos == string::npos) {
-          return promise_.set_error(Status::Error(500, "Wrong server response"));
-        }
-        promise_.set_value(td_api::make_object<td_api::text>(data.substr(begin_pos, end_pos - begin_pos)));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-    stop();
-  }
-};
-
-void SecureManager::on_get_secure_value(SecureValueWithCredentials value) {
-  auto type = value.value.type;
-  secure_value_cache_[type] = std::move(value);
-}
-
-void SecureManager::get_all_secure_values(std::string password, Promise<TdApiSecureValues> promise) {
-  refcnt_++;
-  create_actor<GetAllSecureValues>("GetAllSecureValues", actor_shared(this), std::move(password), std::move(promise))
-      .release();
-}
-
-void SecureManager::set_secure_value(string password, SecureValue secure_value, Promise<TdApiSecureValue> promise) {
-  refcnt_++;
-  auto type = secure_value.type;
-  auto new_promise =
-      PromiseCreator::lambda([promise = std::move(promise)](Result<SecureValueWithCredentials> r_secure_value) mutable {
-        if (r_secure_value.is_error()) {
-          return promise.set_error(r_secure_value.move_as_error());
-        }
-        auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-        auto r_passport_element = get_passport_element_object(file_manager, r_secure_value.move_as_ok().value);
-        if (r_passport_element.is_error()) {
-          LOG(ERROR) << "Failed to get passport element object: " << r_passport_element.error();
-          return promise.set_error(Status::Error(500, "Failed to get passport element object"));
-        }
-        promise.set_value(r_passport_element.move_as_ok());
-      });
-  set_secure_value_queries_[type] = create_actor<SetSecureValue>(
-      "SetSecureValue", actor_shared(this), std::move(password), std::move(secure_value), std::move(new_promise));
-}
-
-void SecureManager::delete_secure_value(SecureValueType type, Promise<Unit> promise) {
-  refcnt_++;
-  auto new_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), type, promise = std::move(promise)](Result<Unit> result) mutable {
-        send_closure(actor_id, &SecureManager::on_delete_secure_value, type, std::move(promise), std::move(result));
-      });
-  create_actor<DeleteSecureValue>("DeleteSecureValue", actor_shared(this), type, std::move(new_promise)).release();
-}
-
-void SecureManager::on_delete_secure_value(SecureValueType type, Promise<Unit> promise, Result<Unit> result) {
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-
-  secure_value_cache_.erase(type);
-  promise.set_value(Unit());
-}
-
-void SecureManager::set_secure_value_errors(Td *td, tl_object_ptr<telegram_api::InputUser> input_user,
-                                            vector<tl_object_ptr<td_api::inputPassportElementError>> errors,
-                                            Promise<Unit> promise) {
-  CHECK(td != nullptr);
-  CHECK(input_user != nullptr);
-  vector<tl_object_ptr<telegram_api::SecureValueError>> input_errors;
-  for (auto &error : errors) {
-    if (error == nullptr) {
-      return promise.set_error(Status::Error(400, "Error must be non-empty"));
-    }
-    if (error->type_ == nullptr) {
-      return promise.set_error(Status::Error(400, "Type must be non-empty"));
-    }
-    if (!clean_input_string(error->message_)) {
-      return promise.set_error(Status::Error(400, "Error message must be encoded in UTF-8"));
-    }
-    if (error->source_ == nullptr) {
-      return promise.set_error(Status::Error(400, "Error source must be non-empty"));
-    }
-
-    auto type = get_input_secure_value_type(get_secure_value_type_td_api(error->type_));
-    switch (error->source_->get_id()) {
-      case td_api::inputPassportElementErrorSourceUnspecified::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceUnspecified>(error->source_);
-        input_errors.push_back(make_tl_object<telegram_api::secureValueError>(
-            std::move(type), BufferSlice(source->element_hash_), error->message_));
-        break;
-      }
-      case td_api::inputPassportElementErrorSourceDataField::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceDataField>(error->source_);
-        if (!clean_input_string(source->field_name_)) {
-          return promise.set_error(Status::Error(400, "Field name must be encoded in UTF-8"));
-        }
-
-        input_errors.push_back(make_tl_object<telegram_api::secureValueErrorData>(
-            std::move(type), BufferSlice(source->data_hash_), source->field_name_, error->message_));
-        break;
-      }
-      case td_api::inputPassportElementErrorSourceFrontSide::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceFrontSide>(error->source_);
-        input_errors.push_back(make_tl_object<telegram_api::secureValueErrorFrontSide>(
-            std::move(type), BufferSlice(source->file_hash_), error->message_));
-        break;
-      }
-      case td_api::inputPassportElementErrorSourceReverseSide::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceReverseSide>(error->source_);
-        input_errors.push_back(make_tl_object<telegram_api::secureValueErrorReverseSide>(
-            std::move(type), BufferSlice(source->file_hash_), error->message_));
-        break;
-      }
-      case td_api::inputPassportElementErrorSourceSelfie::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceSelfie>(error->source_);
-        input_errors.push_back(make_tl_object<telegram_api::secureValueErrorSelfie>(
-            std::move(type), BufferSlice(source->file_hash_), error->message_));
-        break;
-      }
-      case td_api::inputPassportElementErrorSourceTranslationFile::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceTranslationFile>(error->source_);
-        input_errors.push_back(make_tl_object<telegram_api::secureValueErrorTranslationFile>(
-            std::move(type), BufferSlice(source->file_hash_), error->message_));
-        break;
-      }
-      case td_api::inputPassportElementErrorSourceTranslationFiles::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceTranslationFiles>(error->source_);
-        if (source->file_hashes_.empty()) {
-          return promise.set_error(Status::Error(400, "File hashes must be non-empty"));
-        }
-        auto file_hashes = transform(source->file_hashes_, [](Slice hash) { return BufferSlice(hash); });
-        input_errors.push_back(make_tl_object<telegram_api::secureValueErrorTranslationFiles>(
-            std::move(type), std::move(file_hashes), error->message_));
-        break;
-      }
-      case td_api::inputPassportElementErrorSourceFile::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceFile>(error->source_);
-        input_errors.push_back(make_tl_object<telegram_api::secureValueErrorFile>(
-            std::move(type), BufferSlice(source->file_hash_), error->message_));
-        break;
-      }
-      case td_api::inputPassportElementErrorSourceFiles::ID: {
-        auto source = td_api::move_object_as<td_api::inputPassportElementErrorSourceFiles>(error->source_);
-        if (source->file_hashes_.empty()) {
-          return promise.set_error(Status::Error(400, "File hashes must be non-empty"));
-        }
-        auto file_hashes = transform(source->file_hashes_, [](Slice hash) { return BufferSlice(hash); });
-        input_errors.push_back(make_tl_object<telegram_api::secureValueErrorFiles>(
-            std::move(type), std::move(file_hashes), error->message_));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-  td->create_handler<SetSecureValueErrorsQuery>(std::move(promise))
-      ->send(std::move(input_user), std::move(input_errors));
-}
-
-void SecureManager::get_passport_authorization_form(UserId bot_user_id, string scope, string public_key, string nonce,
-                                                    Promise<TdApiAuthorizationForm> promise) {
-  refcnt_++;
-  CHECK(max_authorization_form_id_ < std::numeric_limits<int32>::max());
-  auto authorization_form_id = ++max_authorization_form_id_;
-  auto &form_ptr = authorization_forms_[authorization_form_id];
-  if (form_ptr == nullptr) {
-    form_ptr = make_unique<AuthorizationForm>();
-  }
-  auto &form = *form_ptr;
-  form.bot_user_id = bot_user_id;
-  form.scope = scope;
-  form.public_key = public_key;
-  form.nonce = std::move(nonce);
-  auto new_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), authorization_form_id, promise = std::move(promise)](
-          Result<telegram_api::object_ptr<telegram_api::account_authorizationForm>> r_authorization_form) mutable {
-        send_closure(actor_id, &SecureManager::on_get_passport_authorization_form, authorization_form_id,
-                     std::move(promise), std::move(r_authorization_form));
-      });
-  create_actor<GetPassportAuthorizationForm>("GetPassportAuthorizationForm", actor_shared(this), bot_user_id,
-                                             std::move(scope), std::move(public_key), std::move(new_promise))
-      .release();
-}
-
-void SecureManager::on_get_passport_authorization_form(
-    int32 authorization_form_id, Promise<TdApiAuthorizationForm> promise,
-    Result<telegram_api::object_ptr<telegram_api::account_authorizationForm>> r_authorization_form) {
-  auto it = authorization_forms_.find(authorization_form_id);
-  CHECK(it != authorization_forms_.end());
-  CHECK(it->second != nullptr);
-  CHECK(!it->second->is_received);
-  if (r_authorization_form.is_error()) {
-    authorization_forms_.erase(it);
-    return promise.set_error(r_authorization_form.move_as_error());
-  }
-
-  auto authorization_form = r_authorization_form.move_as_ok();
-  LOG(INFO) << "Receive " << to_string(authorization_form);
-  G()->td().get_actor_unsafe()->user_manager_->on_get_users(std::move(authorization_form->users_),
-                                                            "on_get_passport_authorization_form");
-
-  vector<vector<SuitableSecureValue>> required_types;
-  std::map<SecureValueType, SuitableSecureValue> all_types;
-  for (auto &type_ptr : authorization_form->required_types_) {
-    CHECK(type_ptr != nullptr);
-    vector<SuitableSecureValue> required_type;
-    switch (type_ptr->get_id()) {
-      case telegram_api::secureRequiredType::ID: {
-        auto value = get_suitable_secure_value(move_tl_object_as<telegram_api::secureRequiredType>(type_ptr));
-        all_types.emplace(value.type, value);
-        required_type.push_back(std::move(value));
-        break;
-      }
-      case telegram_api::secureRequiredTypeOneOf::ID: {
-        auto type_one_of = move_tl_object_as<telegram_api::secureRequiredTypeOneOf>(type_ptr);
-        for (auto &type : type_one_of->types_) {
-          if (type->get_id() == telegram_api::secureRequiredType::ID) {
-            auto value = get_suitable_secure_value(move_tl_object_as<telegram_api::secureRequiredType>(type));
-            all_types.emplace(value.type, value);
-            required_type.push_back(std::move(value));
-          } else {
-            LOG(ERROR) << to_string(type);
-          }
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-    if (!required_type.empty()) {
-      required_types.push_back(required_type);
-    }
-  }
-
-  it->second->options = std::move(all_types);
-  it->second->values = std::move(authorization_form->values_);
-  it->second->errors = std::move(authorization_form->errors_);
-  it->second->is_received = true;
-
-  promise.set_value(td_api::make_object<td_api::passportAuthorizationForm>(
-      authorization_form_id, get_passport_required_elements_object(required_types),
-      authorization_form->privacy_policy_url_));
-}
-
-void SecureManager::get_passport_authorization_form_available_elements(int32 authorization_form_id, string password,
-                                                                       Promise<TdApiSecureValuesWithErrors> promise) {
-  auto it = authorization_forms_.find(authorization_form_id);
-  if (it == authorization_forms_.end()) {
-    return promise.set_error(Status::Error(400, "Unknown authorization_form_id"));
-  }
-  CHECK(it->second != nullptr);
-  if (!it->second->is_received) {
-    return promise.set_error(Status::Error(400, "Authorization form isn't received yet"));
-  }
-
-  refcnt_++;
-  send_closure(G()->password_manager(), &PasswordManager::get_secure_secret, password,
-               PromiseCreator::lambda([self = actor_shared(this), authorization_form_id,
-                                       promise = std::move(promise)](Result<secure_storage::Secret> r_secret) mutable {
-                 send_closure(self, &SecureManager::on_get_passport_authorization_form_secret, authorization_form_id,
-                              std::move(promise), std::move(r_secret));
-               }));
-}
-
-void SecureManager::on_get_passport_authorization_form_secret(int32 authorization_form_id,
-                                                              Promise<TdApiSecureValuesWithErrors> promise,
-                                                              Result<secure_storage::Secret> r_secret) {
-  auto it = authorization_forms_.find(authorization_form_id);
-  if (it == authorization_forms_.end()) {
-    return promise.set_error(Status::Error(400, "Authorization form has already been sent"));
-  }
-  CHECK(it->second != nullptr);
-  CHECK(it->second->is_received);
-  if (it->second->is_decrypted) {
-    return promise.set_error(Status::Error(400, "Authorization form has already been decrypted"));
-  }
-
-  if (r_secret.is_error()) {
-    auto error = r_secret.move_as_error();
-    if (!G()->is_expected_error(error)) {
-      LOG(ERROR) << "Receive error instead of secret: " << error;
-    }
-    if (error.code() <= 0) {
-      error = Status::Error(400, error.message());  // TODO error.set_code(400) ?
-    }
-    return promise.set_error(std::move(error));
-  }
-  auto secret = r_secret.move_as_ok();
-
-  it->second->is_decrypted = true;
-
-  auto *file_manager = G()->td().get_actor_unsafe()->file_manager_.get();
-  std::vector<TdApiSecureValue> values;
-  std::map<SecureValueType, SecureValueCredentials> all_credentials;
-  for (const auto &suitable_type : it->second->options) {
-    auto type = suitable_type.first;
-    for (auto &value : it->second->values) {
-      if (value == nullptr) {
-        continue;
-      }
-      auto value_type = get_secure_value_type(value->type_);
-      if (value_type != type) {
-        continue;
-      }
-
-      auto r_secure_value =
-          decrypt_secure_value(file_manager, secret, get_encrypted_secure_value(file_manager, std::move(value)));
-      value = nullptr;
-      if (r_secure_value.is_error()) {
-        LOG(ERROR) << "Failed to decrypt secure value: " << r_secure_value.error();
-        break;
-      }
-
-      on_get_secure_value(r_secure_value.ok());
-
-      auto secure_value = r_secure_value.move_as_ok();
-      auto r_passport_element = get_passport_element_object(file_manager, secure_value.value);
-      if (r_passport_element.is_error()) {
-        LOG(ERROR) << "Failed to get passport element object: " << r_passport_element.error();
-        break;
-      }
-      values.push_back(r_passport_element.move_as_ok());
-      all_credentials.emplace(type, std::move(secure_value.credentials));
-
-      break;
-    }
-  }
-
-  auto get_file_index = [](const vector<SecureFileCredentials> &file_credentials, Slice file_hash) -> int32 {
-    for (size_t i = 0; i < file_credentials.size(); i++) {
-      if (file_credentials[i].hash == file_hash) {
-        return narrow_cast<int32>(i);
-      }
-    }
-    return -1;
-  };
-
-  vector<td_api::object_ptr<td_api::passportElementError>> errors;
-  for (auto &error_ptr : it->second->errors) {
-    CHECK(error_ptr != nullptr);
-    SecureValueType type = SecureValueType::None;
-    td_api::object_ptr<td_api::PassportElementErrorSource> source;
-    string message;
-    switch (error_ptr->get_id()) {
-      case telegram_api::secureValueError::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueError>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        source = td_api::make_object<td_api::passportElementErrorSourceUnspecified>();
-        break;
-      }
-      case telegram_api::secureValueErrorData::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueErrorData>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        string field_name = get_secure_value_data_field_name(type, error->field_);
-        if (field_name.empty()) {
-          break;
-        }
-        source = td_api::make_object<td_api::passportElementErrorSourceDataField>(std::move(field_name));
-        break;
-      }
-      case telegram_api::secureValueErrorFile::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueErrorFile>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        int32 file_index = get_file_index(all_credentials[type].files, error->file_hash_.as_slice());
-        if (file_index == -1) {
-          LOG(ERROR) << "Can't find file with error";
-          break;
-        }
-        source = td_api::make_object<td_api::passportElementErrorSourceFile>(file_index);
-        break;
-      }
-      case telegram_api::secureValueErrorFiles::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueErrorFiles>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        source = td_api::make_object<td_api::passportElementErrorSourceFiles>();
-        break;
-      }
-      case telegram_api::secureValueErrorFrontSide::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueErrorFrontSide>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        source = td_api::make_object<td_api::passportElementErrorSourceFrontSide>();
-        break;
-      }
-      case telegram_api::secureValueErrorReverseSide::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueErrorReverseSide>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        source = td_api::make_object<td_api::passportElementErrorSourceReverseSide>();
-        break;
-      }
-      case telegram_api::secureValueErrorSelfie::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueErrorSelfie>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        source = td_api::make_object<td_api::passportElementErrorSourceSelfie>();
-        break;
-      }
-      case telegram_api::secureValueErrorTranslationFile::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueErrorTranslationFile>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        int32 file_index = get_file_index(all_credentials[type].translations, error->file_hash_.as_slice());
-        if (file_index == -1) {
-          LOG(ERROR) << "Can't find translation file with error";
-          break;
-        }
-        source = td_api::make_object<td_api::passportElementErrorSourceTranslationFile>(file_index);
-        break;
-      }
-      case telegram_api::secureValueErrorTranslationFiles::ID: {
-        auto error = move_tl_object_as<telegram_api::secureValueErrorTranslationFiles>(error_ptr);
-        type = get_secure_value_type(error->type_);
-        message = std::move(error->text_);
-        source = td_api::make_object<td_api::passportElementErrorSourceTranslationFiles>();
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-    if (source == nullptr) {
-      continue;
-    }
-
-    errors.push_back(td_api::make_object<td_api::passportElementError>(get_passport_element_type_object(type), message,
-                                                                       std::move(source)));
-  }
-
-  promise.set_value(td_api::make_object<td_api::passportElementsWithErrors>(std::move(values), std::move(errors)));
-}
-
-void SecureManager::send_passport_authorization_form(int32 authorization_form_id, std::vector<SecureValueType> types,
-                                                     Promise<> promise) {
-  auto it = authorization_forms_.find(authorization_form_id);
-  if (it == authorization_forms_.end()) {
-    return promise.set_error(Status::Error(400, "Unknown authorization_form_id"));
-  }
-  CHECK(it->second != nullptr);
-  if (!it->second->is_received) {
-    return promise.set_error(Status::Error(400, "Authorization form isn't received yet"));
-  }
-  // there is no need to check for is_decrypted
-  if (types.empty()) {
-    return promise.set_error(Status::Error(400, "Types must be non-empty"));
-  }
-
-  std::vector<SecureValueCredentials> credentials;
-  credentials.reserve(types.size());
-  for (auto type : types) {
-    auto value_it = secure_value_cache_.find(type);
-    if (value_it == secure_value_cache_.end()) {
-      return promise.set_error(Status::Error(400, "Passport Element with the specified type is not found"));
-    }
-    credentials.push_back(value_it->second.credentials);
-  }
-
-  std::vector<telegram_api::object_ptr<telegram_api::secureValueHash>> hashes;
-  for (auto &c : credentials) {
-    hashes.push_back(telegram_api::make_object<telegram_api::secureValueHash>(get_input_secure_value_type(c.type),
-                                                                              BufferSlice(c.hash)));
-    auto options_it = it->second->options.find(c.type);
-    if (options_it == it->second->options.end()) {
-      return promise.set_error(Status::Error(400, "Passport Element with the specified type was not requested"));
-    }
-    auto &options = options_it->second;
-    if (!options.is_selfie_required) {
-      c.selfie = optional<SecureFileCredentials>();
-    }
-    if (!options.is_translation_required) {
-      c.translations.clear();
-    }
-  }
-
-  auto r_encrypted_credentials =
-      get_encrypted_credentials(credentials, it->second->nonce, it->second->public_key,
-                                it->second->scope[0] == '{' && it->second->scope.back() == '}');
-  if (r_encrypted_credentials.is_error()) {
-    return promise.set_error(r_encrypted_credentials.move_as_error());
-  }
-
-  auto td_query = telegram_api::account_acceptAuthorization(
-      it->second->bot_user_id.get(), it->second->scope, it->second->public_key, std::move(hashes),
-      get_secure_credentials_encrypted_object(r_encrypted_credentials.move_as_ok()));
-  auto query = G()->net_query_creator().create(td_query);
-  auto new_promise = PromiseCreator::lambda([promise =
-                                                 std::move(promise)](Result<NetQueryPtr> r_net_query_ptr) mutable {
-    TRY_STATUS_PROMISE(promise, fetch_result<telegram_api::account_acceptAuthorization>(std::move(r_net_query_ptr)));
-    promise.set_value(Unit());
-  });
-  send_with_promise(std::move(query), std::move(new_promise));
-}
-
-void SecureManager::get_preferred_country_language(string country_code,
-                                                   Promise<td_api::object_ptr<td_api::text>> promise) {
-  refcnt_++;
-  for (auto &c : country_code) {
-    c = to_upper(c);
-  }
-  create_actor<GetPassportConfig>("GetPassportConfig", actor_shared(this), std::move(country_code), std::move(promise))
-      .release();
-}
-
-void SecureManager::hangup() {
-  container_.for_each(
-      [](auto id, Promise<NetQueryPtr> &promise) { promise.set_error(Global::request_aborted_error()); });
-  dec_refcnt();
-}
-
-void SecureManager::hangup_shared() {
-  dec_refcnt();
-}
-
-void SecureManager::dec_refcnt() {
-  refcnt_--;
-  if (refcnt_ == 0) {
-    stop();
-  }
-}
-
-void SecureManager::on_result(NetQueryPtr query) {
-  auto token = get_link_token();
-  container_.extract(token).set_value(std::move(query));
-}
-
-void SecureManager::send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise) {
-  auto id = container_.create(std::move(promise));
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, id));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecureManager.h b/third-party/td/td/td/telegram/SecureManager.h
deleted file mode 100644
index 7340e9d532..0000000000
--- a/third-party/td/td/td/telegram/SecureManager.h
+++ /dev/null
@@ -1,99 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/SecureStorage.h"
-#include "td/telegram/SecureValue.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <map>
-#include <utility>
-
-namespace td {
-
-class Td;
-
-using TdApiSecureValue = td_api::object_ptr<td_api::PassportElement>;
-using TdApiSecureValues = td_api::object_ptr<td_api::passportElements>;
-using TdApiSecureValuesWithErrors = td_api::object_ptr<td_api::passportElementsWithErrors>;
-using TdApiAuthorizationForm = td_api::object_ptr<td_api::passportAuthorizationForm>;
-
-class SecureManager final : public NetQueryCallback {
- public:
-  explicit SecureManager(ActorShared<> parent);
-
-  void get_secure_value(std::string password, SecureValueType type, Promise<TdApiSecureValue> promise);
-
-  void get_all_secure_values(std::string password, Promise<TdApiSecureValues> promise);
-
-  void set_secure_value(string password, SecureValue secure_value, Promise<TdApiSecureValue> promise);
-
-  void delete_secure_value(SecureValueType type, Promise<Unit> promise);
-
-  void set_secure_value_errors(Td *td, tl_object_ptr<telegram_api::InputUser> input_user,
-                               vector<tl_object_ptr<td_api::inputPassportElementError>> errors, Promise<Unit> promise);
-
-  void on_get_secure_value(SecureValueWithCredentials value);
-
-  void get_passport_authorization_form(UserId bot_user_id, string scope, string public_key, string nonce,
-                                       Promise<TdApiAuthorizationForm> promise);
-  void get_passport_authorization_form_available_elements(int32 authorization_form_id, string password,
-                                                          Promise<TdApiSecureValuesWithErrors> promise);
-  void send_passport_authorization_form(int32 authorization_form_id, std::vector<SecureValueType> types,
-                                        Promise<> promise);
-
-  void get_preferred_country_language(string country_code, Promise<td_api::object_ptr<td_api::text>> promise);
-
- private:
-  ActorShared<> parent_;
-  int32 refcnt_{1};
-  std::map<SecureValueType, ActorOwn<>> set_secure_value_queries_;
-  std::map<SecureValueType, SecureValueWithCredentials> secure_value_cache_;
-
-  struct AuthorizationForm {
-    UserId bot_user_id;
-    string scope;
-    string public_key;
-    string nonce;
-    bool is_received = false;
-    bool is_decrypted = false;
-    std::map<SecureValueType, SuitableSecureValue> options;
-    vector<telegram_api::object_ptr<telegram_api::secureValue>> values;
-    vector<telegram_api::object_ptr<telegram_api::SecureValueError>> errors;
-  };
-
-  FlatHashMap<int32, unique_ptr<AuthorizationForm>> authorization_forms_;
-  int32 max_authorization_form_id_{0};
-
-  void hangup() final;
-  void hangup_shared() final;
-  void dec_refcnt();
-  void on_delete_secure_value(SecureValueType type, Promise<Unit> promise, Result<Unit> result);
-  void on_get_passport_authorization_form(
-      int32 authorization_form_id, Promise<TdApiAuthorizationForm> promise,
-      Result<telegram_api::object_ptr<telegram_api::account_authorizationForm>> r_authorization_form);
-  void on_get_passport_authorization_form_secret(int32 authorization_form_id,
-                                                 Promise<TdApiSecureValuesWithErrors> promise,
-                                                 Result<secure_storage::Secret> r_secret);
-
-  void on_result(NetQueryPtr query) final;
-  Container<Promise<NetQueryPtr>> container_;
-  void send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecureStorage.cpp b/third-party/td/td/td/telegram/SecureStorage.cpp
deleted file mode 100644
index 78250ef643..0000000000
--- a/third-party/td/td/td/telegram/SecureStorage.cpp
+++ /dev/null
@@ -1,408 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SecureStorage.h"
-
-#include "td/utils/as.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Random.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-namespace secure_storage {
-
-// Helpers
-Result<ValueHash> ValueHash::create(Slice data) {
-  UInt256 hash;
-  if (data.size() != ::td::as_slice(hash).size()) {
-    return Status::Error(PSLICE() << "Wrong hash size " << data.size());
-  }
-  ::td::as_mutable_slice(hash).copy_from(data);
-  return ValueHash{hash};
-}
-
-static AesCbcState calc_aes_cbc_state_hash(Slice hash) {
-  CHECK(hash.size() == 64);
-  SecureString key(32);
-  as_mutable_slice(key).copy_from(hash.substr(0, 32));
-  SecureString iv(16);
-  as_mutable_slice(iv).copy_from(hash.substr(32, 16));
-  LOG(INFO) << "End AES CBC state calculation";
-  return AesCbcState{key, iv};
-}
-
-AesCbcState calc_aes_cbc_state_pbkdf2(Slice secret, Slice salt) {
-  LOG(INFO) << "Begin AES CBC state calculation";
-  UInt<512> hash;
-  pbkdf2_sha512(secret, salt, 100000, as_mutable_slice(hash));
-  return calc_aes_cbc_state_hash(as_slice(hash));
-}
-
-AesCbcState calc_aes_cbc_state_sha512(Slice seed) {
-  LOG(INFO) << "Begin AES CBC state calculation";
-  UInt<512> hash;
-  sha512(seed, as_mutable_slice(hash));
-  return calc_aes_cbc_state_hash(as_slice(hash));
-}
-
-template <class F>
-static Status data_view_for_each(const DataView &data, F &&f) {
-  const int64 step = 128 << 10;
-  for (int64 i = 0, size = data.size(); i < size; i += step) {
-    TRY_RESULT(bytes, data.pread(i, min(step, size - i)));
-    TRY_STATUS(f(std::move(bytes)));
-  }
-  return Status::OK();
-}
-
-Result<ValueHash> calc_value_hash(const DataView &data_view) {
-  Sha256State state;
-  state.init();
-  TRY_STATUS(data_view_for_each(data_view, [&state](BufferSlice bytes) {
-    state.feed(bytes.as_slice());
-    return Status::OK();
-  }));
-  UInt256 res;
-  state.extract(as_mutable_slice(res));
-  return ValueHash{res};
-}
-
-ValueHash calc_value_hash(Slice data) {
-  UInt256 res;
-  sha256(data, as_mutable_slice(res));
-  return ValueHash{res};
-}
-
-BufferSlice gen_random_prefix(int64 data_size) {
-  BufferSlice buff(narrow_cast<size_t>(((32 + 15 + data_size) & -16) - data_size));
-  Random::secure_bytes(buff.as_mutable_slice());
-  buff.as_mutable_slice()[0] = narrow_cast<uint8>(buff.size());
-  CHECK((buff.size() + data_size) % 16 == 0);
-  return buff;
-}
-
-class FileDataView final : public DataView {
- public:
-  FileDataView(FileFd &fd, int64 size);
-
-  int64 size() const final;
-  Result<BufferSlice> pread(int64 offset, int64 size) const final;
-
- private:
-  FileFd &fd_;
-  int64 size_;
-};
-
-FileDataView::FileDataView(FileFd &fd, int64 size) : fd_(fd), size_(size) {
-}
-
-int64 FileDataView::size() const {
-  return size_;
-}
-
-Result<BufferSlice> FileDataView::pread(int64 offset, int64 size) const {
-  auto slice = BufferSlice(narrow_cast<size_t>(size));
-  TRY_RESULT(actual_size, fd_.pread(slice.as_mutable_slice(), offset));
-  if (static_cast<int64>(actual_size) != size) {
-    return Status::Error("Not enough data in file");
-  }
-  return std::move(slice);
-}
-
-BufferSliceDataView::BufferSliceDataView(BufferSlice buffer_slice) : buffer_slice_(std::move(buffer_slice)) {
-}
-
-int64 BufferSliceDataView::size() const {
-  return narrow_cast<int64>(buffer_slice_.size());
-}
-
-Result<BufferSlice> BufferSliceDataView::pread(int64 offset, int64 size) const {
-  auto end_offset = size + offset;
-  if (this->size() < end_offset) {
-    return Status::Error("Not enough data in BufferSlice");
-  }
-  return BufferSlice(buffer_slice_.as_slice().substr(narrow_cast<size_t>(offset), narrow_cast<size_t>(size)));
-}
-
-ConcatDataView::ConcatDataView(const DataView &left, const DataView &right) : left_(left), right_(right) {
-}
-
-int64 ConcatDataView::size() const {
-  return left_.size() + right_.size();
-}
-
-Result<BufferSlice> ConcatDataView::pread(int64 offset, int64 size) const {
-  auto end_offset = size + offset;
-  if (this->size() < end_offset) {
-    return Status::Error("Not enough data in ConcatDataView");
-  }
-
-  auto substr = [](const DataView &slice, int64 offset, int64 size) -> Result<BufferSlice> {
-    auto l = max(int64{0}, offset);
-    auto r = min(slice.size(), offset + size);
-    if (l >= r) {
-      return BufferSlice();
-    }
-    return slice.pread(l, r - l);
-  };
-
-  TRY_RESULT(a, substr(left_, offset, size));
-  TRY_RESULT(b, substr(right_, offset - left_.size(), size));
-
-  if (a.empty()) {
-    return std::move(b);
-  }
-  if (b.empty()) {
-    return std::move(a);
-  }
-
-  BufferSlice res(a.size() + b.size());
-  res.as_mutable_slice().copy_from(a.as_slice());
-  res.as_mutable_slice().substr(a.size()).copy_from(b.as_slice());
-  return std::move(res);
-}
-
-Password::Password(std::string password) : password_(std::move(password)) {
-}
-
-Slice Password::as_slice() const {
-  return password_;
-}
-
-static uint8 secret_checksum(Slice secret) {
-  uint32 sum = 0;
-  for (uint8 c : secret) {
-    sum += c;
-  }
-  return static_cast<uint8>((255 + 239 - sum % 255) % 255);
-}
-
-Result<Secret> Secret::create(Slice secret) {
-  if (secret.size() != 32) {
-    return Status::Error("Wrong secret size");
-  }
-  uint32 checksum = secret_checksum(secret);
-  if (checksum != 0) {
-    return Status::Error(PSLICE() << "Wrong checksum " << checksum);
-  }
-  UInt256 res;
-  ::td::as_mutable_slice(res).copy_from(secret);
-
-  UInt256 secret_sha256;
-  sha256(secret, ::td::as_mutable_slice(secret_sha256));
-  int64 hash = as<int64>(secret_sha256.raw);
-  return Secret{res, hash};
-}
-
-Secret Secret::create_new() {
-  UInt256 secret;
-  auto secret_slice = ::td::as_mutable_slice(secret);
-  Random::secure_bytes(secret_slice);
-  auto checksum_diff = secret_checksum(secret_slice);
-  auto new_byte = static_cast<uint8>((static_cast<uint32>(secret_slice.ubegin()[0]) + checksum_diff) % 255);
-  secret_slice.ubegin()[0] = new_byte;
-  return create(secret_slice).move_as_ok();
-}
-
-Slice Secret::as_slice() const {
-  return ::td::as_slice(secret_);
-}
-
-int64 Secret::get_hash() const {
-  return hash_;
-}
-
-Secret Secret::clone() const {
-  return {secret_, hash_};
-}
-
-EncryptedSecret Secret::encrypt(Slice key, Slice salt, EnryptionAlgorithm algorithm) {
-  auto aes_cbc_state = [&] {
-    switch (algorithm) {
-      case EnryptionAlgorithm::Sha512:
-        return calc_aes_cbc_state_sha512(PSLICE() << salt << key << salt);
-      case EnryptionAlgorithm::Pbkdf2:
-        return calc_aes_cbc_state_pbkdf2(key, salt);
-      default:
-        UNREACHABLE();
-        return AesCbcState(Slice(), Slice());
-    }
-  }();
-
-  UInt256 res;
-  aes_cbc_state.encrypt(as_slice(), ::td::as_mutable_slice(res));
-  return EncryptedSecret::create(::td::as_slice(res)).move_as_ok();
-}
-
-Secret::Secret(UInt256 secret, int64 hash) : secret_(secret), hash_(hash) {
-}
-
-Result<EncryptedSecret> EncryptedSecret::create(Slice encrypted_secret) {
-  if (encrypted_secret.size() != 32) {
-    return Status::Error("Wrong encrypted secret size");
-  }
-  UInt256 res;
-  ::td::as_mutable_slice(res).copy_from(encrypted_secret);
-  return EncryptedSecret{res};
-}
-
-Result<Secret> EncryptedSecret::decrypt(Slice key, Slice salt, EnryptionAlgorithm algorithm) {
-  auto aes_cbc_state = [&] {
-    switch (algorithm) {
-      case EnryptionAlgorithm::Sha512:
-        return calc_aes_cbc_state_sha512(PSLICE() << salt << key << salt);
-      case EnryptionAlgorithm::Pbkdf2:
-        return calc_aes_cbc_state_pbkdf2(key, salt);
-      default:
-        UNREACHABLE();
-        return AesCbcState(Slice(), Slice());
-    }
-  }();
-
-  UInt256 res;
-  aes_cbc_state.decrypt(::td::as_slice(encrypted_secret_), ::td::as_mutable_slice(res));
-  return Secret::create(::td::as_slice(res));
-}
-
-Slice EncryptedSecret::as_slice() const {
-  return ::td::as_slice(encrypted_secret_);
-}
-
-EncryptedSecret::EncryptedSecret(UInt256 encrypted_secret) : encrypted_secret_(encrypted_secret) {
-}
-
-Decryptor::Decryptor(AesCbcState aes_cbc_state) : aes_cbc_state_(std::move(aes_cbc_state)) {
-  sha256_state_.init();
-}
-
-Result<BufferSlice> Decryptor::append(BufferSlice data) {
-  if (data.empty()) {
-    return BufferSlice();
-  }
-  if (data.size() % 16 != 0) {
-    return Status::Error("Part size must be divisible by 16");
-  }
-  aes_cbc_state_.decrypt(data.as_slice(), data.as_mutable_slice());
-  sha256_state_.feed(data.as_slice());
-  if (!skipped_prefix_) {
-    to_skip_ = data.as_slice().ubegin()[0];
-    size_t to_skip = min(to_skip_, data.size());
-    if (to_skip_ > data.size()) {
-      to_skip_ = 0;  // to fail final to_skip check
-    }
-    skipped_prefix_ = true;
-    data = data.from_slice(data.as_slice().remove_prefix(to_skip));
-  }
-  return std::move(data);
-}
-
-Result<ValueHash> Decryptor::finish() {
-  if (!skipped_prefix_) {
-    return Status::Error("No data was given");
-  }
-  if (to_skip_ < 32) {
-    return Status::Error("Too small random prefix");
-  }
-
-  UInt256 res;
-  sha256_state_.extract(as_mutable_slice(res), true);
-  return ValueHash{res};
-}
-
-Encryptor::Encryptor(AesCbcState aes_cbc_state, const DataView &data_view)
-    : aes_cbc_state_(std::move(aes_cbc_state)), data_view_(data_view) {
-}
-
-int64 Encryptor::size() const {
-  return data_view_.size();
-}
-
-Result<BufferSlice> Encryptor::pread(int64 offset, int64 size) const {
-  if (offset != current_offset_) {
-    return Status::Error("Arbitrary offset is not supported");
-  }
-  if (size % 16 != 0) {
-    return Status::Error("Part size must be divisible by 16");
-  }
-  TRY_RESULT(part, data_view_.pread(offset, size));
-  aes_cbc_state_.encrypt(part.as_slice(), part.as_mutable_slice());
-  current_offset_ += size;
-  return std::move(part);
-}
-
-Result<EncryptedValue> encrypt_value(const Secret &secret, Slice data) {
-  BufferSliceDataView random_prefix_view{gen_random_prefix(data.size())};
-  BufferSliceDataView data_view{BufferSlice(data)};
-  ConcatDataView full_view{random_prefix_view, data_view};
-
-  TRY_RESULT(hash, calc_value_hash(full_view));
-
-  auto aes_cbc_state = calc_aes_cbc_state_sha512(PSLICE() << secret.as_slice() << hash.as_slice());
-  Encryptor encryptor(std::move(aes_cbc_state), full_view);
-  TRY_RESULT(encrypted_data, encryptor.pread(0, encryptor.size()));
-  return EncryptedValue{std::move(encrypted_data), std::move(hash)};
-}
-
-Result<BufferSlice> decrypt_value(const Secret &secret, const ValueHash &hash, Slice data) {
-  auto aes_cbc_state = calc_aes_cbc_state_sha512(PSLICE() << secret.as_slice() << hash.as_slice());
-  Decryptor decryptor(std::move(aes_cbc_state));
-  TRY_RESULT(decrypted_value, decryptor.append(BufferSlice(data)));
-  TRY_RESULT(stored_hash, decryptor.finish());
-  if (stored_hash.as_slice() != hash.as_slice()) {
-    return Status::Error(PSLICE() << "Hash mismatch " << format::as_hex_dump<4>(stored_hash.as_slice()) << " "
-                                  << format::as_hex_dump<4>(hash.as_slice()));
-  }
-  return std::move(decrypted_value);
-}
-
-Result<ValueHash> encrypt_file(const Secret &secret, const string &src, const string &dest) {
-  TRY_RESULT(src_file, FileFd::open(src, FileFd::Flags::Read));
-  TRY_RESULT(dest_file, FileFd::open(dest, FileFd::Flags::Truncate | FileFd::Flags::Write | FileFd::Create));
-  TRY_RESULT(src_file_size, src_file.get_size());
-
-  BufferSliceDataView random_prefix_view(gen_random_prefix(src_file_size));
-  FileDataView data_view(src_file, src_file_size);
-  ConcatDataView full_view(random_prefix_view, data_view);
-
-  TRY_RESULT(hash, calc_value_hash(full_view));
-
-  auto aes_cbc_state = calc_aes_cbc_state_sha512(PSLICE() << secret.as_slice() << hash.as_slice());
-  Encryptor encryptor(std::move(aes_cbc_state), full_view);
-  TRY_STATUS(
-      data_view_for_each(encryptor, [&dest_file](BufferSlice bytes) { return dest_file.write(bytes.as_slice()); }));
-  return std::move(hash);
-}
-
-Status decrypt_file(const Secret &secret, const ValueHash &hash, const string &src, const string &dest) {
-  TRY_RESULT(src_file, FileFd::open(src, FileFd::Flags::Read));
-  TRY_RESULT(dest_file, FileFd::open(dest, FileFd::Flags::Truncate | FileFd::Flags::Write | FileFd::Create));
-  TRY_RESULT(src_file_size, src_file.get_size());
-
-  FileDataView src_file_view(src_file, src_file_size);
-
-  auto aes_cbc_state = calc_aes_cbc_state_sha512(PSLICE() << secret.as_slice() << hash.as_slice());
-  Decryptor decryptor(std::move(aes_cbc_state));
-  TRY_STATUS(data_view_for_each(src_file_view, [&decryptor, &dest_file](BufferSlice bytes) {
-    TRY_RESULT(decrypted_bytes, decryptor.append(std::move(bytes)));
-    TRY_STATUS(dest_file.write(decrypted_bytes.as_slice()));
-    return Status::OK();
-  }));
-
-  TRY_RESULT(stored_hash, decryptor.finish());
-
-  if (hash.as_slice() != stored_hash.as_slice()) {
-    return Status::Error("Hash mismatch");
-  }
-
-  return Status::OK();
-}
-
-}  // namespace secure_storage
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecureStorage.h b/third-party/td/td/td/telegram/SecureStorage.h
deleted file mode 100644
index 4799469fea..0000000000
--- a/third-party/td/td/td/telegram/SecureStorage.h
+++ /dev/null
@@ -1,195 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-// Types
-// Password
-// Secret - 32 bytes with sum % 255 == 239
-// EncryptedSecret - encrypted secret
-// ValueHash - 32 bytes, sha256 from value
-//
-// ValueFull = ValueText? ValueData? ValueFile* = [Value]
-// Value = ValueText | ValueData | ValueFile
-//
-// ValueMeta = random_prefix, secret, hash
-//
-// Helpers
-//   calc_aes_cbc_state :: ValueSecret -> ValueHash -> AesCbcState
-//
-// Encryption.
-// To encrypt data:
-//   RandomPrefix, ValueSecret, Value:
-//   calc_value_hash :: RandomPrefix -> Value -> ValueHash
-//   do_encrypt :: RandomPrefix -> Value -> AesCbcState -> EncryptedValue // async
-//   encrypt :: (ValueSecret, RandomPrefix, Value) -> (EncryptedValue, ValueHash)
-//
-// To decrypt data:
-//   ValueSecret, ValueHash, EncryptedValue
-//   do_decrypt :: EncryptedValue -> AesCbcState -> (RandomPrefix, Value, ValueHash) // async
-//   decrypt :: (ValueSecret, ValueHash, EncryptedValue) -> Value
-//
-// To encrypt FullValue:
-//   ValueSecret, [(RandomPrefix, Value)]
-//   (ValueSecret, [(RandomPrefix, Value)]) -> [(ValueSecret, RandomPrefix, Value)]
-//   [(ValueSecret, RandomPrefix, Value)] -> [(EncryptedValue, ValueHash)]
-//
-
-namespace secure_storage {
-// Helpers
-class ValueHash {
- public:
-  explicit ValueHash(UInt256 hash) : hash_(hash) {
-  }
-  static Result<ValueHash> create(Slice data);
-  Slice as_slice() const {
-    return ::td::as_slice(hash_);
-  }
-
- private:
-  UInt256 hash_;
-};
-
-class DataView {
- public:
-  DataView() = default;
-  DataView(const DataView &) = delete;
-  DataView &operator=(const DataView &) = delete;
-  DataView(DataView &&) = delete;
-  DataView &operator=(DataView &&) = delete;
-
-  virtual int64 size() const = 0;
-  virtual Result<BufferSlice> pread(int64 offset, int64 size) const = 0;
-  virtual ~DataView() = default;
-};
-
-class BufferSliceDataView final : public DataView {
- public:
-  explicit BufferSliceDataView(BufferSlice buffer_slice);
-  int64 size() const final;
-  Result<BufferSlice> pread(int64 offset, int64 size) const final;
-
- private:
-  BufferSlice buffer_slice_;
-};
-
-class ConcatDataView final : public DataView {
- public:
-  ConcatDataView(const DataView &left, const DataView &right);
-  int64 size() const final;
-  Result<BufferSlice> pread(int64 offset, int64 size) const final;
-
- private:
-  const DataView &left_;
-  const DataView &right_;
-};
-
-AesCbcState calc_aes_cbc_state_pbkdf2(Slice secret, Slice salt);
-AesCbcState calc_aes_cbc_state_sha512(Slice seed);
-Result<ValueHash> calc_value_hash(const DataView &data_view);
-ValueHash calc_value_hash(Slice data);
-BufferSlice gen_random_prefix(int64 data_size);
-
-class Password {
- public:
-  explicit Password(std::string password);
-  Slice as_slice() const;
-
- private:
-  std::string password_;
-};
-
-class EncryptedSecret;
-
-enum class EnryptionAlgorithm : int32 { Sha512, Pbkdf2 };
-
-class Secret {
- public:
-  static Result<Secret> create(Slice secret);
-  static Secret create_new();
-
-  Slice as_slice() const;
-  EncryptedSecret encrypt(Slice key, Slice salt, EnryptionAlgorithm algorithm);
-
-  int64 get_hash() const;
-  Secret clone() const;
-
-  static constexpr size_t size() {
-    return sizeof(secret_.raw);
-  }
-
- private:
-  Secret(UInt256 secret, int64 hash);
-  UInt256 secret_;
-  int64 hash_;
-};
-
-class EncryptedSecret {
- public:
-  static Result<EncryptedSecret> create(Slice encrypted_secret);
-  Result<Secret> decrypt(Slice key, Slice salt, EnryptionAlgorithm algorithm);
-  Slice as_slice() const;
-
- private:
-  explicit EncryptedSecret(UInt256 encrypted_secret);
-  UInt256 encrypted_secret_;
-};
-
-// Decryption
-class Decryptor {
- public:
-  explicit Decryptor(AesCbcState aes_cbc_state);
-  Result<BufferSlice> append(BufferSlice data);
-  Result<ValueHash> finish();
-
- private:
-  AesCbcState aes_cbc_state_;
-  Sha256State sha256_state_;
-  bool skipped_prefix_{false};
-  size_t to_skip_{0};
-};
-
-// Encryption
-class Encryptor final : public DataView {
- public:
-  Encryptor(AesCbcState aes_cbc_state, const DataView &data_view);
-  int64 size() const final;
-  Result<BufferSlice> pread(int64 offset, int64 size) const final;
-
- private:
-  mutable AesCbcState aes_cbc_state_;
-  mutable int64 current_offset_{0};
-  const DataView &data_view_;
-};
-
-// Main functions
-
-//   decrypt :: (ValueSecret, ValueHash, EncryptedValue) -> Value
-//   encrypt :: (ValueSecret, RandomPrefix, Value) -> (EncryptedValue, ValueHash)
-
-struct EncryptedValue {
-  BufferSlice data;
-  ValueHash hash;
-};
-
-Result<EncryptedValue> encrypt_value(const Secret &secret, Slice data);
-
-Result<BufferSlice> decrypt_value(const Secret &secret, const ValueHash &hash, Slice data);
-
-Result<ValueHash> encrypt_file(const Secret &secret, const string &src, const string &dest);
-
-Status decrypt_file(const Secret &secret, const ValueHash &hash, const string &src, const string &dest);
-
-}  // namespace secure_storage
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecureValue.cpp b/third-party/td/td/td/telegram/SecureValue.cpp
deleted file mode 100644
index 73db6a6bbc..0000000000
--- a/third-party/td/td/td/telegram/SecureValue.cpp
+++ /dev/null
@@ -1,1470 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SecureValue.h"
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/OrderInfo.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/crypto.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/utf8.h"
-
-#include <limits>
-
-namespace td {
-
-StringBuilder &operator<<(StringBuilder &string_builder, const SecureValueType &type) {
-  switch (type) {
-    case SecureValueType::PersonalDetails:
-      return string_builder << "PersonalDetails";
-    case SecureValueType::Passport:
-      return string_builder << "Passport";
-    case SecureValueType::DriverLicense:
-      return string_builder << "DriverLicense";
-    case SecureValueType::IdentityCard:
-      return string_builder << "IdentityCard";
-    case SecureValueType::InternalPassport:
-      return string_builder << "InternalPassport";
-    case SecureValueType::Address:
-      return string_builder << "Address";
-    case SecureValueType::UtilityBill:
-      return string_builder << "UtilityBill";
-    case SecureValueType::BankStatement:
-      return string_builder << "BankStatement";
-    case SecureValueType::RentalAgreement:
-      return string_builder << "RentalAgreement";
-    case SecureValueType::PassportRegistration:
-      return string_builder << "PassportRegistration";
-    case SecureValueType::TemporaryRegistration:
-      return string_builder << "TemporaryRegistration";
-    case SecureValueType::PhoneNumber:
-      return string_builder << "PhoneNumber";
-    case SecureValueType::EmailAddress:
-      return string_builder << "EmailAddress";
-    case SecureValueType::None:
-      return string_builder << "None";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-SecureValueType get_secure_value_type(const tl_object_ptr<telegram_api::SecureValueType> &secure_value_type) {
-  CHECK(secure_value_type != nullptr);
-  switch (secure_value_type->get_id()) {
-    case telegram_api::secureValueTypePersonalDetails::ID:
-      return SecureValueType::PersonalDetails;
-    case telegram_api::secureValueTypePassport::ID:
-      return SecureValueType::Passport;
-    case telegram_api::secureValueTypeDriverLicense::ID:
-      return SecureValueType::DriverLicense;
-    case telegram_api::secureValueTypeIdentityCard::ID:
-      return SecureValueType::IdentityCard;
-    case telegram_api::secureValueTypeInternalPassport::ID:
-      return SecureValueType::InternalPassport;
-    case telegram_api::secureValueTypeAddress::ID:
-      return SecureValueType::Address;
-    case telegram_api::secureValueTypeUtilityBill::ID:
-      return SecureValueType::UtilityBill;
-    case telegram_api::secureValueTypeBankStatement::ID:
-      return SecureValueType::BankStatement;
-    case telegram_api::secureValueTypeRentalAgreement::ID:
-      return SecureValueType::RentalAgreement;
-    case telegram_api::secureValueTypePassportRegistration::ID:
-      return SecureValueType::PassportRegistration;
-    case telegram_api::secureValueTypeTemporaryRegistration::ID:
-      return SecureValueType::TemporaryRegistration;
-    case telegram_api::secureValueTypePhone::ID:
-      return SecureValueType::PhoneNumber;
-    case telegram_api::secureValueTypeEmail::ID:
-      return SecureValueType::EmailAddress;
-    default:
-      UNREACHABLE();
-      return SecureValueType::None;
-  }
-}
-
-SecureValueType get_secure_value_type_td_api(const tl_object_ptr<td_api::PassportElementType> &passport_element_type) {
-  CHECK(passport_element_type != nullptr);
-  switch (passport_element_type->get_id()) {
-    case td_api::passportElementTypePersonalDetails::ID:
-      return SecureValueType::PersonalDetails;
-    case td_api::passportElementTypePassport::ID:
-      return SecureValueType::Passport;
-    case td_api::passportElementTypeDriverLicense::ID:
-      return SecureValueType::DriverLicense;
-    case td_api::passportElementTypeIdentityCard::ID:
-      return SecureValueType::IdentityCard;
-    case td_api::passportElementTypeInternalPassport::ID:
-      return SecureValueType::InternalPassport;
-    case td_api::passportElementTypeAddress::ID:
-      return SecureValueType::Address;
-    case td_api::passportElementTypeUtilityBill::ID:
-      return SecureValueType::UtilityBill;
-    case td_api::passportElementTypeBankStatement::ID:
-      return SecureValueType::BankStatement;
-    case td_api::passportElementTypeRentalAgreement::ID:
-      return SecureValueType::RentalAgreement;
-    case td_api::passportElementTypePassportRegistration::ID:
-      return SecureValueType::PassportRegistration;
-    case td_api::passportElementTypeTemporaryRegistration::ID:
-      return SecureValueType::TemporaryRegistration;
-    case td_api::passportElementTypePhoneNumber::ID:
-      return SecureValueType::PhoneNumber;
-    case td_api::passportElementTypeEmailAddress::ID:
-      return SecureValueType::EmailAddress;
-    default:
-      UNREACHABLE();
-      return SecureValueType::None;
-  }
-}
-
-vector<SecureValueType> unique_secure_value_types(vector<SecureValueType> types) {
-  size_t size = types.size();
-  for (size_t i = 0; i < size; i++) {
-    for (size_t j = 0; j < i; j++) {
-      if (types[i] == types[j]) {
-        LOG(ERROR) << "Have duplicate passport element type " << types[i] << " at positions " << i << " and " << j;
-        types[i--] = types[--size];
-        break;
-      }
-    }
-  }
-  types.resize(size);
-  return types;
-}
-
-vector<SecureValueType> get_secure_value_types(
-    const vector<tl_object_ptr<telegram_api::SecureValueType>> &secure_value_types) {
-  return unique_secure_value_types(transform(secure_value_types, get_secure_value_type));
-}
-
-vector<SecureValueType> get_secure_value_types_td_api(
-    const vector<tl_object_ptr<td_api::PassportElementType>> &secure_value_types) {
-  return unique_secure_value_types(transform(secure_value_types, get_secure_value_type_td_api));
-}
-
-td_api::object_ptr<td_api::PassportElementType> get_passport_element_type_object(SecureValueType type) {
-  switch (type) {
-    case SecureValueType::PersonalDetails:
-      return td_api::make_object<td_api::passportElementTypePersonalDetails>();
-    case SecureValueType::Passport:
-      return td_api::make_object<td_api::passportElementTypePassport>();
-    case SecureValueType::DriverLicense:
-      return td_api::make_object<td_api::passportElementTypeDriverLicense>();
-    case SecureValueType::IdentityCard:
-      return td_api::make_object<td_api::passportElementTypeIdentityCard>();
-    case SecureValueType::InternalPassport:
-      return td_api::make_object<td_api::passportElementTypeInternalPassport>();
-    case SecureValueType::Address:
-      return td_api::make_object<td_api::passportElementTypeAddress>();
-    case SecureValueType::UtilityBill:
-      return td_api::make_object<td_api::passportElementTypeUtilityBill>();
-    case SecureValueType::BankStatement:
-      return td_api::make_object<td_api::passportElementTypeBankStatement>();
-    case SecureValueType::RentalAgreement:
-      return td_api::make_object<td_api::passportElementTypeRentalAgreement>();
-    case SecureValueType::PassportRegistration:
-      return td_api::make_object<td_api::passportElementTypePassportRegistration>();
-    case SecureValueType::TemporaryRegistration:
-      return td_api::make_object<td_api::passportElementTypeTemporaryRegistration>();
-    case SecureValueType::PhoneNumber:
-      return td_api::make_object<td_api::passportElementTypePhoneNumber>();
-    case SecureValueType::EmailAddress:
-      return td_api::make_object<td_api::passportElementTypeEmailAddress>();
-    case SecureValueType::None:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<telegram_api::SecureValueType> get_input_secure_value_type(SecureValueType type) {
-  switch (type) {
-    case SecureValueType::PersonalDetails:
-      return telegram_api::make_object<telegram_api::secureValueTypePersonalDetails>();
-    case SecureValueType::Passport:
-      return telegram_api::make_object<telegram_api::secureValueTypePassport>();
-    case SecureValueType::DriverLicense:
-      return telegram_api::make_object<telegram_api::secureValueTypeDriverLicense>();
-    case SecureValueType::IdentityCard:
-      return telegram_api::make_object<telegram_api::secureValueTypeIdentityCard>();
-    case SecureValueType::InternalPassport:
-      return telegram_api::make_object<telegram_api::secureValueTypeInternalPassport>();
-    case SecureValueType::Address:
-      return telegram_api::make_object<telegram_api::secureValueTypeAddress>();
-    case SecureValueType::UtilityBill:
-      return telegram_api::make_object<telegram_api::secureValueTypeUtilityBill>();
-    case SecureValueType::BankStatement:
-      return telegram_api::make_object<telegram_api::secureValueTypeBankStatement>();
-    case SecureValueType::RentalAgreement:
-      return telegram_api::make_object<telegram_api::secureValueTypeRentalAgreement>();
-    case SecureValueType::PassportRegistration:
-      return telegram_api::make_object<telegram_api::secureValueTypePassportRegistration>();
-    case SecureValueType::TemporaryRegistration:
-      return telegram_api::make_object<telegram_api::secureValueTypeTemporaryRegistration>();
-    case SecureValueType::PhoneNumber:
-      return telegram_api::make_object<telegram_api::secureValueTypePhone>();
-    case SecureValueType::EmailAddress:
-      return telegram_api::make_object<telegram_api::secureValueTypeEmail>();
-    case SecureValueType::None:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-vector<td_api::object_ptr<td_api::PassportElementType>> get_passport_element_types_object(
-    const vector<SecureValueType> &types) {
-  return transform(types, get_passport_element_type_object);
-}
-
-SuitableSecureValue get_suitable_secure_value(
-    const tl_object_ptr<telegram_api::secureRequiredType> &secure_required_type) {
-  SuitableSecureValue result;
-  result.type = get_secure_value_type(secure_required_type->type_);
-  result.is_selfie_required = secure_required_type->selfie_required_;
-  result.is_translation_required = secure_required_type->translation_required_;
-  result.is_native_name_required = secure_required_type->native_names_;
-  return result;
-}
-
-td_api::object_ptr<td_api::passportSuitableElement> get_passport_suitable_element_object(
-    const SuitableSecureValue &element) {
-  return td_api::make_object<td_api::passportSuitableElement>(
-      get_passport_element_type_object(element.type), element.is_selfie_required, element.is_translation_required,
-      element.is_native_name_required);
-}
-
-td_api::object_ptr<td_api::passportRequiredElement> get_passport_required_element_object(
-    const vector<SuitableSecureValue> &required_element) {
-  return td_api::make_object<td_api::passportRequiredElement>(
-      transform(required_element, get_passport_suitable_element_object));
-}
-
-vector<td_api::object_ptr<td_api::passportRequiredElement>> get_passport_required_elements_object(
-    const vector<vector<SuitableSecureValue>> &required_elements) {
-  return transform(required_elements, get_passport_required_element_object);
-}
-
-string get_secure_value_data_field_name(SecureValueType type, string field_name) {
-  switch (type) {
-    case SecureValueType::PersonalDetails:
-      if (field_name == "first_name" || field_name == "middle_name" || field_name == "last_name" ||
-          field_name == "gender" || field_name == "country_code" || field_name == "residence_country_code") {
-        return field_name;
-      }
-      if (field_name == "first_name_native") {
-        return "native_first_name";
-      }
-      if (field_name == "middle_name_native") {
-        return "native_middle_name";
-      }
-      if (field_name == "last_name_native") {
-        return "native_last_name";
-      }
-      if (field_name == "birth_date") {
-        return "birthdate";
-      }
-      break;
-    case SecureValueType::Passport:
-    case SecureValueType::DriverLicense:
-    case SecureValueType::IdentityCard:
-    case SecureValueType::InternalPassport:
-      if (field_name == "expiry_date") {
-        return field_name;
-      }
-      if (field_name == "document_no") {
-        return "number";
-      }
-      break;
-    case SecureValueType::Address:
-      if (field_name == "state" || field_name == "city" || field_name == "street_line1" ||
-          field_name == "street_line2" || field_name == "country_code") {
-        return field_name;
-      }
-      if (field_name == "post_code") {
-        return "postal_code";
-      }
-      break;
-    case SecureValueType::UtilityBill:
-    case SecureValueType::BankStatement:
-    case SecureValueType::RentalAgreement:
-    case SecureValueType::PassportRegistration:
-    case SecureValueType::TemporaryRegistration:
-    case SecureValueType::PhoneNumber:
-    case SecureValueType::EmailAddress:
-      break;
-    case SecureValueType::None:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  LOG(ERROR) << "Receive error about unknown field \"" << field_name << "\" in type " << type;
-  return string();
-}
-
-bool operator==(const DatedFile &lhs, const DatedFile &rhs) {
-  return lhs.file_id == rhs.file_id && lhs.date == rhs.date;
-}
-
-bool operator!=(const DatedFile &lhs, const DatedFile &rhs) {
-  return !(lhs == rhs);
-}
-
-bool operator==(const EncryptedSecureFile &lhs, const EncryptedSecureFile &rhs) {
-  return lhs.file == rhs.file && lhs.file_hash == rhs.file_hash && lhs.encrypted_secret == rhs.encrypted_secret;
-}
-
-bool operator!=(const EncryptedSecureFile &lhs, const EncryptedSecureFile &rhs) {
-  return !(lhs == rhs);
-}
-
-EncryptedSecureFile get_encrypted_secure_file(FileManager *file_manager,
-                                              tl_object_ptr<telegram_api::SecureFile> &&secure_file_ptr) {
-  CHECK(secure_file_ptr != nullptr);
-  EncryptedSecureFile result;
-  switch (secure_file_ptr->get_id()) {
-    case telegram_api::secureFileEmpty::ID:
-      break;
-    case telegram_api::secureFile::ID: {
-      auto secure_file = telegram_api::move_object_as<telegram_api::secureFile>(secure_file_ptr);
-      auto dc_id = secure_file->dc_id_;
-      if (!DcId::is_valid(dc_id)) {
-        LOG(ERROR) << "Wrong dc_id = " << dc_id;
-        break;
-      }
-      result.file.file_id = file_manager->register_remote(
-          FullRemoteFileLocation(FileType::SecureEncrypted, secure_file->id_, secure_file->access_hash_,
-                                 DcId::internal(dc_id), ""),
-          FileLocationSource::FromServer, DialogId(), secure_file->size_, 0, PSTRING() << secure_file->id_ << ".jpg");
-      result.file.date = secure_file->date_;
-      if (result.file.date < 0) {
-        LOG(ERROR) << "Receive wrong date " << result.file.date;
-        result.file.date = 0;
-      }
-      result.encrypted_secret = secure_file->secret_.as_slice().str();
-      result.file_hash = secure_file->file_hash_.as_slice().str();
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return result;
-}
-
-vector<EncryptedSecureFile> get_encrypted_secure_files(FileManager *file_manager,
-                                                       vector<tl_object_ptr<telegram_api::SecureFile>> &&secure_files) {
-  vector<EncryptedSecureFile> results;
-  results.reserve(secure_files.size());
-  for (auto &secure_file : secure_files) {
-    auto result = get_encrypted_secure_file(file_manager, std::move(secure_file));
-    if (result.file.file_id.is_valid()) {
-      results.push_back(std::move(result));
-    }
-  }
-  return results;
-}
-
-telegram_api::object_ptr<telegram_api::InputSecureFile> get_input_secure_file_object(FileManager *file_manager,
-                                                                                     const EncryptedSecureFile &file,
-                                                                                     SecureInputFile &input_file) {
-  if (!file.file.file_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid EncryptedSecureFile";
-    return nullptr;
-  }
-  CHECK(input_file.file_upload_id.get_file_id().is_valid());
-  CHECK(file_manager->get_file_view(file.file.file_id).get_main_file_id() ==
-        file_manager->get_file_view(input_file.file_upload_id.get_file_id()).get_main_file_id());
-  auto res = std::move(input_file.input_file);
-  if (res == nullptr) {
-    auto file_view = file_manager->get_file_view(file.file.file_id);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    return full_remote_location->as_input_secure_file();
-  }
-  CHECK(res->get_id() == telegram_api::inputSecureFileUploaded::ID);
-  auto uploaded = static_cast<telegram_api::inputSecureFileUploaded *>(res.get());
-  uploaded->secret_ = BufferSlice(file.encrypted_secret);
-  uploaded->file_hash_ = BufferSlice(file.file_hash);
-  return res;
-}
-
-static td_api::object_ptr<td_api::datedFile> get_dated_file_object(FileManager *file_manager, DatedFile file) {
-  return td_api::make_object<td_api::datedFile>(file_manager->get_file_object(file.file_id), file.date);
-}
-
-static vector<td_api::object_ptr<td_api::datedFile>> get_dated_files_object(FileManager *file_manager,
-                                                                            const vector<DatedFile> &files) {
-  return transform(files, [file_manager](const DatedFile &file) { return get_dated_file_object(file_manager, file); });
-}
-
-static td_api::object_ptr<td_api::datedFile> get_dated_file_object(FileManager *file_manager,
-                                                                   const EncryptedSecureFile &file) {
-  DatedFile dated_file = file.file;
-  auto file_id = dated_file.file_id;
-  CHECK(file_id.is_valid());
-  auto file_view = file_manager->get_file_view(file_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr || full_remote_location->is_web()) {
-    LOG(ERROR) << "Have wrong file in get_dated_file_object";
-    return nullptr;
-  }
-  if (file_view.get_type() != FileType::SecureEncrypted) {
-    LOG(ERROR) << "Have file of a wrong type in get_dated_file_object";
-  } else if (file_view.encryption_key().empty()) {
-    return get_dated_file_object(file_manager, dated_file);
-  }
-  dated_file.file_id = file_manager->register_remote(
-      FullRemoteFileLocation(FileType::SecureDecrypted, full_remote_location->get_id(),
-                             full_remote_location->get_access_hash(), full_remote_location->get_dc_id(), ""),
-      FileLocationSource::FromServer, DialogId(), 0, file_view.expected_size(), file_view.suggested_path());
-  return get_dated_file_object(file_manager, dated_file);
-}
-
-static vector<td_api::object_ptr<td_api::datedFile>> get_dated_files_object(FileManager *file_manager,
-                                                                            const vector<EncryptedSecureFile> &files) {
-  return transform(
-      files, [file_manager](const EncryptedSecureFile &file) { return get_dated_file_object(file_manager, file); });
-}
-
-vector<telegram_api::object_ptr<telegram_api::InputSecureFile>> get_input_secure_files_object(
-    FileManager *file_manager, const vector<EncryptedSecureFile> &files, vector<SecureInputFile> &input_files) {
-  CHECK(files.size() == input_files.size());
-  vector<telegram_api::object_ptr<telegram_api::InputSecureFile>> results;
-  results.reserve(files.size());
-  for (size_t i = 0; i < files.size(); i++) {
-    auto result = get_input_secure_file_object(file_manager, files[i], input_files[i]);
-    if (result != nullptr) {
-      results.push_back(std::move(result));
-    }
-  }
-  return results;
-}
-
-bool operator==(const EncryptedSecureData &lhs, const EncryptedSecureData &rhs) {
-  return lhs.data == rhs.data && lhs.hash == rhs.hash && lhs.encrypted_secret == rhs.encrypted_secret;
-}
-
-bool operator!=(const EncryptedSecureData &lhs, const EncryptedSecureData &rhs) {
-  return !(lhs == rhs);
-}
-
-EncryptedSecureData get_encrypted_secure_data(tl_object_ptr<telegram_api::secureData> &&secure_data) {
-  CHECK(secure_data != nullptr);
-  EncryptedSecureData result;
-  result.data = secure_data->data_.as_slice().str();
-  result.hash = secure_data->data_hash_.as_slice().str();
-  result.encrypted_secret = secure_data->secret_.as_slice().str();
-  return result;
-}
-
-telegram_api::object_ptr<telegram_api::secureData> get_secure_data_object(const EncryptedSecureData &data) {
-  return telegram_api::make_object<telegram_api::secureData>(BufferSlice(data.data), BufferSlice(data.hash),
-                                                             BufferSlice(data.encrypted_secret));
-}
-
-bool operator==(const EncryptedSecureValue &lhs, const EncryptedSecureValue &rhs) {
-  return lhs.type == rhs.type && lhs.data == rhs.data && lhs.files == rhs.files && lhs.front_side == rhs.front_side &&
-         lhs.reverse_side == rhs.reverse_side && lhs.selfie == rhs.selfie && lhs.translations == rhs.translations;
-}
-
-bool operator!=(const EncryptedSecureValue &lhs, const EncryptedSecureValue &rhs) {
-  return !(lhs == rhs);
-}
-
-static bool check_encrypted_secure_value(const EncryptedSecureValue &value) {
-  bool has_encrypted_data = !value.data.hash.empty();
-  bool has_plain_data = !has_encrypted_data && !value.data.data.empty();
-  bool has_files = !value.files.empty();
-  bool has_front_side = value.front_side.file.file_id.is_valid();
-  bool has_reverse_side = value.reverse_side.file.file_id.is_valid();
-  bool has_selfie = value.selfie.file.file_id.is_valid();
-  bool has_translations = !value.translations.empty();
-  switch (value.type) {
-    case SecureValueType::PersonalDetails:
-    case SecureValueType::Address:
-      return has_encrypted_data && !has_files && !has_front_side && !has_reverse_side && !has_selfie &&
-             !has_translations;
-    case SecureValueType::Passport:
-    case SecureValueType::InternalPassport:
-      return has_encrypted_data && !has_files && has_front_side && !has_reverse_side;
-    case SecureValueType::DriverLicense:
-    case SecureValueType::IdentityCard:
-      return has_encrypted_data && !has_files && has_front_side && has_reverse_side;
-    case SecureValueType::UtilityBill:
-    case SecureValueType::BankStatement:
-    case SecureValueType::RentalAgreement:
-    case SecureValueType::PassportRegistration:
-    case SecureValueType::TemporaryRegistration:
-      return !has_encrypted_data && !has_plain_data && has_files && !has_front_side && !has_reverse_side && !has_selfie;
-    case SecureValueType::PhoneNumber:
-    case SecureValueType::EmailAddress:
-      return has_plain_data && !has_files && !has_front_side && !has_reverse_side && !has_selfie && !has_translations;
-    case SecureValueType::None:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-EncryptedSecureValue get_encrypted_secure_value(FileManager *file_manager,
-                                                tl_object_ptr<telegram_api::secureValue> &&secure_value) {
-  EncryptedSecureValue result;
-  CHECK(secure_value != nullptr);
-  result.type = get_secure_value_type(secure_value->type_);
-  if (secure_value->plain_data_ != nullptr) {
-    switch (secure_value->plain_data_->get_id()) {
-      case telegram_api::securePlainPhone::ID:
-        result.data.data =
-            std::move(static_cast<telegram_api::securePlainPhone *>(secure_value->plain_data_.get())->phone_);
-        break;
-      case telegram_api::securePlainEmail::ID:
-        result.data.data =
-            std::move(static_cast<telegram_api::securePlainEmail *>(secure_value->plain_data_.get())->email_);
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-  if (secure_value->data_ != nullptr) {
-    result.data = get_encrypted_secure_data(std::move(secure_value->data_));
-  }
-  result.files = get_encrypted_secure_files(file_manager, std::move(secure_value->files_));
-  if (secure_value->front_side_ != nullptr) {
-    result.front_side = get_encrypted_secure_file(file_manager, std::move(secure_value->front_side_));
-  }
-  if (secure_value->reverse_side_ != nullptr) {
-    result.reverse_side = get_encrypted_secure_file(file_manager, std::move(secure_value->reverse_side_));
-  }
-  if (secure_value->selfie_ != nullptr) {
-    result.selfie = get_encrypted_secure_file(file_manager, std::move(secure_value->selfie_));
-  }
-  result.translations = get_encrypted_secure_files(file_manager, std::move(secure_value->translation_));
-  result.hash = secure_value->hash_.as_slice().str();
-  if (!check_encrypted_secure_value(result)) {
-    LOG(ERROR) << "Receive invalid encrypted secure value of type " << result.type;
-    return EncryptedSecureValue();
-  }
-  return result;
-}
-
-vector<EncryptedSecureValue> get_encrypted_secure_values(
-    FileManager *file_manager, vector<tl_object_ptr<telegram_api::secureValue>> &&secure_values) {
-  vector<EncryptedSecureValue> results;
-  results.reserve(secure_values.size());
-  for (auto &secure_value : secure_values) {
-    auto result = get_encrypted_secure_value(file_manager, std::move(secure_value));
-    if (result.type != SecureValueType::None) {
-      results.push_back(std::move(result));
-    }
-  }
-  return results;
-}
-
-td_api::object_ptr<td_api::encryptedPassportElement> get_encrypted_passport_element_object(
-    FileManager *file_manager, const EncryptedSecureValue &value) {
-  bool is_plain = value.data.hash.empty();
-  return td_api::make_object<td_api::encryptedPassportElement>(
-      get_passport_element_type_object(value.type), is_plain ? string() : value.data.data,
-      value.front_side.file.file_id.is_valid() ? get_dated_file_object(file_manager, value.front_side) : nullptr,
-      value.reverse_side.file.file_id.is_valid() ? get_dated_file_object(file_manager, value.reverse_side) : nullptr,
-      value.selfie.file.file_id.is_valid() ? get_dated_file_object(file_manager, value.selfie) : nullptr,
-      get_dated_files_object(file_manager, value.translations), get_dated_files_object(file_manager, value.files),
-      is_plain ? value.data.data : string(), value.hash);
-}
-
-telegram_api::object_ptr<telegram_api::inputSecureValue> get_input_secure_value_object(
-    FileManager *file_manager, const EncryptedSecureValue &value, std::vector<SecureInputFile> &files,
-    optional<SecureInputFile> &front_side, optional<SecureInputFile> &reverse_side, optional<SecureInputFile> &selfie,
-    std::vector<SecureInputFile> &translations) {
-  bool is_plain = value.type == SecureValueType::PhoneNumber || value.type == SecureValueType::EmailAddress;
-  bool has_front_side = value.front_side.file.file_id.is_valid();
-  bool has_reverse_side = value.reverse_side.file.file_id.is_valid();
-  bool has_selfie = value.selfie.file.file_id.is_valid();
-  int32 flags = 0;
-  tl_object_ptr<telegram_api::SecurePlainData> plain_data;
-  if (is_plain) {
-    if (value.type == SecureValueType::PhoneNumber) {
-      plain_data = make_tl_object<telegram_api::securePlainPhone>(value.data.data);
-    } else {
-      plain_data = make_tl_object<telegram_api::securePlainEmail>(value.data.data);
-    }
-    flags |= telegram_api::inputSecureValue::PLAIN_DATA_MASK;
-  } else {
-    flags |= telegram_api::inputSecureValue::DATA_MASK;
-  }
-  if (!value.files.empty()) {
-    flags |= telegram_api::inputSecureValue::FILES_MASK;
-  }
-  if (has_front_side) {
-    flags |= telegram_api::inputSecureValue::FRONT_SIDE_MASK;
-    CHECK(front_side);
-  }
-  if (has_reverse_side) {
-    flags |= telegram_api::inputSecureValue::REVERSE_SIDE_MASK;
-    CHECK(reverse_side);
-  }
-  if (has_selfie) {
-    flags |= telegram_api::inputSecureValue::SELFIE_MASK;
-    CHECK(selfie);
-  }
-  if (!value.translations.empty()) {
-    flags |= telegram_api::inputSecureValue::TRANSLATION_MASK;
-  }
-  return telegram_api::make_object<telegram_api::inputSecureValue>(
-      flags, get_input_secure_value_type(value.type), is_plain ? nullptr : get_secure_data_object(value.data),
-      has_front_side ? get_input_secure_file_object(file_manager, value.front_side, *front_side) : nullptr,
-      has_reverse_side ? get_input_secure_file_object(file_manager, value.reverse_side, *reverse_side) : nullptr,
-      has_selfie ? get_input_secure_file_object(file_manager, value.selfie, *selfie) : nullptr,
-      get_input_secure_files_object(file_manager, value.translations, translations),
-      get_input_secure_files_object(file_manager, value.files, files), std::move(plain_data));
-}
-
-vector<td_api::object_ptr<td_api::encryptedPassportElement>> get_encrypted_passport_element_object(
-    FileManager *file_manager, const vector<EncryptedSecureValue> &values) {
-  return transform(values, [file_manager](const EncryptedSecureValue &value) {
-    return get_encrypted_passport_element_object(file_manager, value);
-  });
-}
-
-bool operator==(const EncryptedSecureCredentials &lhs, const EncryptedSecureCredentials &rhs) {
-  return lhs.data == rhs.data && lhs.hash == rhs.hash && lhs.encrypted_secret == rhs.encrypted_secret;
-}
-
-bool operator!=(const EncryptedSecureCredentials &lhs, const EncryptedSecureCredentials &rhs) {
-  return !(lhs == rhs);
-}
-
-telegram_api::object_ptr<telegram_api::secureCredentialsEncrypted> get_secure_credentials_encrypted_object(
-    const EncryptedSecureCredentials &credentials) {
-  return telegram_api::make_object<telegram_api::secureCredentialsEncrypted>(
-      BufferSlice(credentials.data), BufferSlice(credentials.hash), BufferSlice(credentials.encrypted_secret));
-}
-
-EncryptedSecureCredentials get_encrypted_secure_credentials(
-    tl_object_ptr<telegram_api::secureCredentialsEncrypted> &&credentials) {
-  CHECK(credentials != nullptr);
-  EncryptedSecureCredentials result;
-  result.data = credentials->data_.as_slice().str();
-  result.hash = credentials->hash_.as_slice().str();
-  result.encrypted_secret = credentials->secret_.as_slice().str();
-  return result;
-}
-
-td_api::object_ptr<td_api::encryptedCredentials> get_encrypted_credentials_object(
-    const EncryptedSecureCredentials &credentials) {
-  return td_api::make_object<td_api::encryptedCredentials>(credentials.data, credentials.hash,
-                                                           credentials.encrypted_secret);
-}
-
-// TODO tests
-static Status check_date(int32 day, int32 month, int32 year) {
-  if (day < 1 || day > 31) {
-    return Status::Error(400, "Wrong day number specified");
-  }
-  if (month < 1 || month > 12) {
-    return Status::Error(400, "Wrong month number specified");
-  }
-  if (year < 1 || year > 9999) {
-    return Status::Error(400, "Wrong year number specified");
-  }
-
-  bool is_leap = month == 2 && (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
-  const int32 days_in_month[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-  if (day > days_in_month[month - 1] + static_cast<int32>(is_leap)) {
-    return Status::Error(400, "Wrong day in month number specified");
-  }
-
-  return Status::OK();
-}
-
-static Result<string> get_date(td_api::object_ptr<td_api::date> &&date) {
-  if (date == nullptr) {
-    return string();
-  }
-  TRY_STATUS(check_date(date->day_, date->month_, date->year_));
-
-  return PSTRING() << lpad0(to_string(date->day_), 2) << '.' << lpad0(to_string(date->month_), 2) << '.'
-                   << lpad0(to_string(date->year_), 4);
-}
-
-static Result<int32> to_int32(Slice str) {
-  CHECK(str.size() <= static_cast<size_t>(std::numeric_limits<int32>::digits10));
-  int32 integer_value = 0;
-  for (auto c : str) {
-    if (!is_digit(c)) {
-      return Status::Error(400, PSLICE() << "Can't parse \"" << utf8_encode(str.str()) << "\" as number");
-    }
-    integer_value = integer_value * 10 + c - '0';
-  }
-  return integer_value;
-}
-
-static Result<td_api::object_ptr<td_api::date>> get_date_object(Slice date) {
-  if (date.empty()) {
-    return nullptr;
-  }
-  if (date.size() > 10u || date.size() < 8u) {
-    return Status::Error(400, PSLICE() << "Date \"" << utf8_encode(date.str()) << "\" has wrong length");
-  }
-  auto parts = full_split(date, '.');
-  if (parts.size() != 3 || parts[0].size() > 2 || parts[1].size() > 2 || parts[2].size() != 4 || parts[0].empty() ||
-      parts[1].empty()) {
-    return Status::Error(400, PSLICE() << "Date \"" << utf8_encode(date.str()) << "\" has wrong parts");
-  }
-  TRY_RESULT(day, to_int32(parts[0]));
-  TRY_RESULT(month, to_int32(parts[1]));
-  TRY_RESULT(year, to_int32(parts[2]));
-  TRY_STATUS(check_date(day, month, year));
-
-  return td_api::make_object<td_api::date>(day, month, year);
-}
-
-static Status check_name(string &name) {
-  if (!clean_input_string(name)) {
-    return Status::Error(400, "Name must be encoded in UTF-8");
-  }
-  if (utf8_length(name) > 255) {
-    return Status::Error(400, "Name is too long");
-  }
-  return Status::OK();
-}
-
-static Status check_gender(string &gender) {
-  if (gender != "male" && gender != "female") {
-    return Status::Error(400, "Unsupported gender specified");
-  }
-  return Status::OK();
-}
-
-static Result<string> get_personal_details(td_api::object_ptr<td_api::personalDetails> &&personal_details) {
-  if (personal_details == nullptr) {
-    return Status::Error(400, "Personal details must be non-empty");
-  }
-  TRY_STATUS(check_name(personal_details->first_name_));
-  TRY_STATUS(check_name(personal_details->middle_name_));
-  TRY_STATUS(check_name(personal_details->last_name_));
-  TRY_STATUS(check_name(personal_details->native_first_name_));
-  TRY_STATUS(check_name(personal_details->native_middle_name_));
-  TRY_STATUS(check_name(personal_details->native_last_name_));
-  TRY_RESULT(birthdate, get_date(std::move(personal_details->birthdate_)));
-  if (birthdate.empty()) {
-    return Status::Error(400, "Birthdate must be non-empty");
-  }
-  TRY_STATUS(check_gender(personal_details->gender_));
-  TRY_STATUS(check_country_code(personal_details->country_code_));
-  TRY_STATUS(check_country_code(personal_details->residence_country_code_));
-
-  return json_encode<std::string>(json_object([&](auto &o) {
-    o("first_name", personal_details->first_name_);
-    o("middle_name", personal_details->middle_name_);
-    o("last_name", personal_details->last_name_);
-    o("first_name_native", personal_details->native_first_name_);
-    o("middle_name_native", personal_details->native_middle_name_);
-    o("last_name_native", personal_details->native_last_name_);
-    o("birth_date", birthdate);
-    o("gender", personal_details->gender_);
-    o("country_code", personal_details->country_code_);
-    o("residence_country_code", personal_details->residence_country_code_);
-  }));
-}
-
-static Result<td_api::object_ptr<td_api::personalDetails>> get_personal_details_object(Slice personal_details) {
-  auto personal_details_copy = personal_details.str();
-  auto r_value = json_decode(personal_details_copy);
-  if (r_value.is_error()) {
-    return Status::Error(400, "Can't parse personal details JSON object");
-  }
-
-  auto value = r_value.move_as_ok();
-  if (value.type() != JsonValue::Type::Object) {
-    return Status::Error(400, "Personal details must be an Object");
-  }
-
-  auto &object = value.get_object();
-  TRY_RESULT(first_name, object.get_optional_string_field("first_name"));
-  TRY_RESULT(middle_name, object.get_optional_string_field("middle_name"));
-  TRY_RESULT(last_name, object.get_optional_string_field("last_name"));
-  TRY_RESULT(native_first_name, object.get_optional_string_field("first_name_native"));
-  TRY_RESULT(native_middle_name, object.get_optional_string_field("middle_name_native"));
-  TRY_RESULT(native_last_name, object.get_optional_string_field("last_name_native"));
-  TRY_RESULT(birthdate, object.get_optional_string_field("birth_date"));
-  if (birthdate.empty()) {
-    return Status::Error(400, "Birthdate must be non-empty");
-  }
-  TRY_RESULT(gender, object.get_optional_string_field("gender"));
-  TRY_RESULT(country_code, object.get_optional_string_field("country_code"));
-  TRY_RESULT(residence_country_code, object.get_optional_string_field("residence_country_code"));
-
-  TRY_STATUS(check_name(first_name));
-  TRY_STATUS(check_name(middle_name));
-  TRY_STATUS(check_name(last_name));
-  TRY_STATUS(check_name(native_first_name));
-  TRY_STATUS(check_name(native_middle_name));
-  TRY_STATUS(check_name(native_last_name));
-  TRY_RESULT(date, get_date_object(birthdate));
-  TRY_STATUS(check_gender(gender));
-  TRY_STATUS(check_country_code(country_code));
-  TRY_STATUS(check_country_code(residence_country_code));
-
-  return td_api::make_object<td_api::personalDetails>(
-      std::move(first_name), std::move(middle_name), std::move(last_name), std::move(native_first_name),
-      std::move(native_middle_name), std::move(native_last_name), std::move(date), std::move(gender),
-      std::move(country_code), std::move(residence_country_code));
-}
-
-static Status check_document_number(string &number) {
-  if (!clean_input_string(number)) {
-    return Status::Error(400, "Document number must be encoded in UTF-8");
-  }
-  if (number.empty()) {
-    return Status::Error(400, "Document number must be non-empty");
-  }
-  if (utf8_length(number) > 24) {
-    return Status::Error(400, "Document number is too long");
-  }
-  return Status::OK();
-}
-
-static Result<DatedFile> get_secure_file(FileManager *file_manager, td_api::object_ptr<td_api::InputFile> &&file) {
-  TRY_RESULT(file_id,
-             file_manager->get_input_file_id(FileType::SecureEncrypted, file, DialogId(), false, false, false, true));
-  DatedFile result;
-  result.file_id = file_id;
-  result.date = G()->unix_time();
-  return std::move(result);
-}
-
-static Result<vector<DatedFile>> get_secure_files(FileManager *file_manager,
-                                                  vector<td_api::object_ptr<td_api::InputFile>> &&files) {
-  vector<DatedFile> result;
-  for (auto &file : files) {
-    TRY_RESULT(dated_file, get_secure_file(file_manager, std::move(file)));
-    result.push_back(std::move(dated_file));
-  }
-  return result;
-}
-
-static Result<SecureValue> get_identity_document(SecureValueType type, FileManager *file_manager,
-                                                 td_api::object_ptr<td_api::inputIdentityDocument> &&identity_document,
-                                                 bool need_reverse_side) {
-  if (identity_document == nullptr) {
-    return Status::Error(400, "Identity document must be non-empty");
-  }
-  TRY_STATUS(check_document_number(identity_document->number_));
-  TRY_RESULT(date, get_date(std::move(identity_document->expiration_date_)));
-
-  SecureValue res;
-  res.type = type;
-  res.data = json_encode<std::string>(json_object([&](auto &o) {
-    o("document_no", identity_document->number_);
-    o("expiry_date", date);
-  }));
-
-  if (identity_document->front_side_ == nullptr) {
-    return Status::Error(400, "Document's front side is required");
-  }
-  if (identity_document->reverse_side_ == nullptr) {
-    if (need_reverse_side) {
-      return Status::Error(400, "Document's reverse side is required");
-    }
-  } else {
-    if (!need_reverse_side) {
-      return Status::Error(400, "Document can't have a reverse side");
-    }
-  }
-
-  TRY_RESULT_ASSIGN(res.front_side, get_secure_file(file_manager, std::move(identity_document->front_side_)));
-  if (identity_document->reverse_side_ != nullptr) {
-    TRY_RESULT_ASSIGN(res.reverse_side, get_secure_file(file_manager, std::move(identity_document->reverse_side_)));
-  }
-  if (identity_document->selfie_ != nullptr) {
-    TRY_RESULT_ASSIGN(res.selfie, get_secure_file(file_manager, std::move(identity_document->selfie_)));
-  }
-  if (!identity_document->translation_.empty()) {
-    TRY_RESULT_ASSIGN(res.translations, get_secure_files(file_manager, std::move(identity_document->translation_)));
-  }
-  return res;
-}
-
-static Result<td_api::object_ptr<td_api::identityDocument>> get_identity_document_object(FileManager *file_manager,
-                                                                                         const SecureValue &value) {
-  CHECK(value.files.empty());
-
-  td_api::object_ptr<td_api::datedFile> front_side;
-  td_api::object_ptr<td_api::datedFile> reverse_side;
-  td_api::object_ptr<td_api::datedFile> selfie;
-  if (value.front_side.file_id.is_valid()) {
-    front_side = get_dated_file_object(file_manager, value.front_side);
-  }
-  if (value.reverse_side.file_id.is_valid()) {
-    reverse_side = get_dated_file_object(file_manager, value.reverse_side);
-  }
-  if (value.selfie.file_id.is_valid()) {
-    selfie = get_dated_file_object(file_manager, value.selfie);
-  }
-
-  auto data_copy = value.data;
-  auto r_value = json_decode(data_copy);
-  if (r_value.is_error()) {
-    return Status::Error(400, "Can't parse identity document JSON object");
-  }
-
-  auto json_value = r_value.move_as_ok();
-  if (json_value.type() != JsonValue::Type::Object) {
-    return Status::Error(400, "Identity document must be an Object");
-  }
-
-  auto &object = json_value.get_object();
-  TRY_RESULT(number, object.get_optional_string_field("document_no"));
-  TRY_RESULT(expiry_date, object.get_optional_string_field("expiry_date"));
-
-  TRY_STATUS(check_document_number(number));
-  TRY_RESULT(date, get_date_object(expiry_date));
-
-  auto translations = get_dated_files_object(file_manager, value.translations);
-  return td_api::make_object<td_api::identityDocument>(std::move(number), std::move(date), std::move(front_side),
-                                                       std::move(reverse_side), std::move(selfie),
-                                                       std::move(translations));
-}
-
-static Result<SecureValue> get_personal_document(
-    SecureValueType type, FileManager *file_manager,
-    td_api::object_ptr<td_api::inputPersonalDocument> &&personal_document) {
-  if (personal_document == nullptr) {
-    return Status::Error(400, "Personal document must be non-empty");
-  }
-
-  SecureValue res;
-  res.type = type;
-  if (personal_document->files_.empty()) {
-    return Status::Error(400, "Document's files are required");
-  }
-  TRY_RESULT_ASSIGN(res.files, get_secure_files(file_manager, std::move(personal_document->files_)));
-  if (!personal_document->translation_.empty()) {
-    TRY_RESULT_ASSIGN(res.translations, get_secure_files(file_manager, std::move(personal_document->translation_)));
-  }
-  return res;
-}
-
-static td_api::object_ptr<td_api::personalDocument> get_personal_document_object(FileManager *file_manager,
-                                                                                 const SecureValue &value) {
-  return td_api::make_object<td_api::personalDocument>(get_dated_files_object(file_manager, value.files),
-                                                       get_dated_files_object(file_manager, value.translations));
-}
-
-static Status check_phone_number(string &phone_number) {
-  if (!clean_input_string(phone_number)) {
-    return Status::Error(400, "Phone number must be encoded in UTF-8");
-  }
-  return Status::OK();
-}
-
-static Status check_email_address(string &email_address) {
-  if (!clean_input_string(email_address)) {
-    return Status::Error(400, "Email address must be encoded in UTF-8");
-  }
-  return Status::OK();
-}
-
-Result<SecureValue> get_secure_value(FileManager *file_manager,
-                                     td_api::object_ptr<td_api::InputPassportElement> &&input_passport_element) {
-  if (input_passport_element == nullptr) {
-    return Status::Error(400, "InputPassportElement must be non-empty");
-  }
-
-  SecureValue res;
-  switch (input_passport_element->get_id()) {
-    case td_api::inputPassportElementPersonalDetails::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementPersonalDetails>(input_passport_element);
-      res.type = SecureValueType::PersonalDetails;
-      TRY_RESULT_ASSIGN(res.data, get_personal_details(std::move(input->personal_details_)));
-      break;
-    }
-    case td_api::inputPassportElementPassport::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementPassport>(input_passport_element);
-      return get_identity_document(SecureValueType::Passport, file_manager, std::move(input->passport_), false);
-    }
-    case td_api::inputPassportElementDriverLicense::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementDriverLicense>(input_passport_element);
-      return get_identity_document(SecureValueType::DriverLicense, file_manager, std::move(input->driver_license_),
-                                   true);
-    }
-    case td_api::inputPassportElementIdentityCard::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementIdentityCard>(input_passport_element);
-      return get_identity_document(SecureValueType::IdentityCard, file_manager, std::move(input->identity_card_), true);
-    }
-    case td_api::inputPassportElementInternalPassport::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementInternalPassport>(input_passport_element);
-      return get_identity_document(SecureValueType::InternalPassport, file_manager,
-                                   std::move(input->internal_passport_), false);
-    }
-    case td_api::inputPassportElementAddress::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementAddress>(input_passport_element);
-      res.type = SecureValueType::Address;
-      TRY_RESULT(address, get_address(std::move(input->address_)));
-      res.data = address_to_json(address);
-      break;
-    }
-    case td_api::inputPassportElementUtilityBill::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementUtilityBill>(input_passport_element);
-      return get_personal_document(SecureValueType::UtilityBill, file_manager, std::move(input->utility_bill_));
-    }
-    case td_api::inputPassportElementBankStatement::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementBankStatement>(input_passport_element);
-      return get_personal_document(SecureValueType::BankStatement, file_manager, std::move(input->bank_statement_));
-    }
-    case td_api::inputPassportElementRentalAgreement::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementRentalAgreement>(input_passport_element);
-      return get_personal_document(SecureValueType::RentalAgreement, file_manager, std::move(input->rental_agreement_));
-    }
-    case td_api::inputPassportElementPassportRegistration::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementPassportRegistration>(input_passport_element);
-      return get_personal_document(SecureValueType::PassportRegistration, file_manager,
-                                   std::move(input->passport_registration_));
-    }
-    case td_api::inputPassportElementTemporaryRegistration::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementTemporaryRegistration>(input_passport_element);
-      return get_personal_document(SecureValueType::TemporaryRegistration, file_manager,
-                                   std::move(input->temporary_registration_));
-    }
-    case td_api::inputPassportElementPhoneNumber::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementPhoneNumber>(input_passport_element);
-      res.type = SecureValueType::PhoneNumber;
-      TRY_STATUS(check_phone_number(input->phone_number_));
-      res.data = std::move(input->phone_number_);
-      break;
-    }
-    case td_api::inputPassportElementEmailAddress::ID: {
-      auto input = td_api::move_object_as<td_api::inputPassportElementEmailAddress>(input_passport_element);
-      res.type = SecureValueType::EmailAddress;
-      TRY_STATUS(check_email_address(input->email_address_));
-      res.data = std::move(input->email_address_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return res;
-}
-
-Result<td_api::object_ptr<td_api::PassportElement>> get_passport_element_object(FileManager *file_manager,
-                                                                                const SecureValue &value) {
-  switch (value.type) {
-    case SecureValueType::PersonalDetails: {
-      TRY_RESULT(personal_details, get_personal_details_object(value.data));
-      return td_api::make_object<td_api::passportElementPersonalDetails>(std::move(personal_details));
-    }
-    case SecureValueType::Passport: {
-      TRY_RESULT(passport, get_identity_document_object(file_manager, value));
-      return td_api::make_object<td_api::passportElementPassport>(std::move(passport));
-    }
-    case SecureValueType::DriverLicense: {
-      TRY_RESULT(driver_license, get_identity_document_object(file_manager, value));
-      return td_api::make_object<td_api::passportElementDriverLicense>(std::move(driver_license));
-    }
-    case SecureValueType::IdentityCard: {
-      TRY_RESULT(identity_card, get_identity_document_object(file_manager, value));
-      return td_api::make_object<td_api::passportElementIdentityCard>(std::move(identity_card));
-    }
-    case SecureValueType::InternalPassport: {
-      TRY_RESULT(internal_passport, get_identity_document_object(file_manager, value));
-      return td_api::make_object<td_api::passportElementInternalPassport>(std::move(internal_passport));
-    }
-    case SecureValueType::Address: {
-      TRY_RESULT(address, address_from_json(value.data));
-      return td_api::make_object<td_api::passportElementAddress>(get_address_object(address));
-    }
-    case SecureValueType::UtilityBill:
-    case SecureValueType::BankStatement:
-    case SecureValueType::RentalAgreement:
-    case SecureValueType::PassportRegistration:
-    case SecureValueType::TemporaryRegistration: {
-      auto document = get_personal_document_object(file_manager, value);
-      if (value.type == SecureValueType::UtilityBill) {
-        return td_api::make_object<td_api::passportElementUtilityBill>(std::move(document));
-      }
-      if (value.type == SecureValueType::BankStatement) {
-        return td_api::make_object<td_api::passportElementBankStatement>(std::move(document));
-      }
-      if (value.type == SecureValueType::RentalAgreement) {
-        return td_api::make_object<td_api::passportElementRentalAgreement>(std::move(document));
-      }
-      if (value.type == SecureValueType::PassportRegistration) {
-        return td_api::make_object<td_api::passportElementPassportRegistration>(std::move(document));
-      }
-      if (value.type == SecureValueType::TemporaryRegistration) {
-        return td_api::make_object<td_api::passportElementTemporaryRegistration>(std::move(document));
-      }
-      UNREACHABLE();
-      break;
-    }
-    case SecureValueType::PhoneNumber:
-      return td_api::make_object<td_api::passportElementPhoneNumber>(value.data);
-    case SecureValueType::EmailAddress:
-      return td_api::make_object<td_api::passportElementEmailAddress>(value.data);
-    case SecureValueType::None:
-    default:
-      UNREACHABLE();
-      return Status::Error(400, "Wrong value type");
-  }
-}
-
-td_api::object_ptr<td_api::passportElements> get_passport_elements_object(FileManager *file_manager,
-                                                                          const vector<SecureValue> &values) {
-  vector<td_api::object_ptr<td_api::PassportElement>> result;
-  result.reserve(values.size());
-  for (auto &value : values) {
-    auto r_obj = get_passport_element_object(file_manager, value);
-    if (r_obj.is_error()) {
-      LOG(ERROR) << "Can't get passport element object: " << r_obj.error();
-      continue;
-    }
-
-    result.push_back(r_obj.move_as_ok());
-  }
-
-  return td_api::make_object<td_api::passportElements>(std::move(result));
-}
-
-static Result<std::pair<DatedFile, SecureFileCredentials>> decrypt_secure_file(
-    FileManager *file_manager, const secure_storage::Secret &master_secret, const EncryptedSecureFile &secure_file) {
-  if (!secure_file.file.file_id.is_valid()) {
-    return std::make_pair(DatedFile(), SecureFileCredentials());
-  }
-  TRY_RESULT(hash, secure_storage::ValueHash::create(secure_file.file_hash));
-  TRY_RESULT(encrypted_secret, secure_storage::EncryptedSecret::create(secure_file.encrypted_secret));
-  TRY_RESULT(secret, encrypted_secret.decrypt(PSLICE() << master_secret.as_slice() << hash.as_slice(), "",
-                                              secure_storage::EnryptionAlgorithm::Sha512));
-  FileEncryptionKey key{secret};
-  key.set_value_hash(hash);
-  file_manager->set_encryption_key(secure_file.file.file_id, std::move(key));
-  return std::make_pair(secure_file.file, SecureFileCredentials{secret.as_slice().str(), hash.as_slice().str()});
-}
-
-static Result<std::pair<vector<DatedFile>, vector<SecureFileCredentials>>> decrypt_secure_files(
-    FileManager *file_manager, const secure_storage::Secret &secret, const vector<EncryptedSecureFile> &secure_files) {
-  vector<DatedFile> result;
-  vector<SecureFileCredentials> credentials;
-  result.reserve(secure_files.size());
-  credentials.reserve(secure_files.size());
-  for (auto &file : secure_files) {
-    TRY_RESULT(decrypted_file, decrypt_secure_file(file_manager, secret, file));
-    result.push_back(std::move(decrypted_file.first));
-    credentials.push_back(std::move(decrypted_file.second));
-  }
-
-  return std::make_pair(std::move(result), std::move(credentials));
-}
-
-static Result<std::pair<string, SecureDataCredentials>> decrypt_secure_data(const secure_storage::Secret &master_secret,
-                                                                            const EncryptedSecureData &secure_data) {
-  TRY_RESULT(hash, secure_storage::ValueHash::create(secure_data.hash));
-  TRY_RESULT(encrypted_secret, secure_storage::EncryptedSecret::create(secure_data.encrypted_secret));
-  TRY_RESULT(secret, encrypted_secret.decrypt(PSLICE() << master_secret.as_slice() << hash.as_slice(), "",
-                                              secure_storage::EnryptionAlgorithm::Sha512));
-  TRY_RESULT(value, secure_storage::decrypt_value(secret, hash, secure_data.data));
-  return std::make_pair(value.as_slice().str(), SecureDataCredentials{secret.as_slice().str(), hash.as_slice().str()});
-}
-
-Result<SecureValueWithCredentials> decrypt_secure_value(FileManager *file_manager, const secure_storage::Secret &secret,
-                                                        const EncryptedSecureValue &encrypted_secure_value) {
-  SecureValue res;
-  SecureValueCredentials res_credentials;
-  res.type = encrypted_secure_value.type;
-  res_credentials.type = res.type;
-  res_credentials.hash = encrypted_secure_value.hash;
-  switch (encrypted_secure_value.type) {
-    case SecureValueType::None:
-      return Status::Error(400, "Receive invalid Telegram Passport element");
-    case SecureValueType::EmailAddress:
-    case SecureValueType::PhoneNumber:
-      res.data = encrypted_secure_value.data.data;
-      break;
-    case SecureValueType::UtilityBill:
-    case SecureValueType::BankStatement:
-    case SecureValueType::RentalAgreement:
-    case SecureValueType::PassportRegistration:
-    case SecureValueType::TemporaryRegistration: {
-      TRY_RESULT(files, decrypt_secure_files(file_manager, secret, encrypted_secure_value.files));
-      res.files = std::move(files.first);
-      res_credentials.files = std::move(files.second);
-      TRY_RESULT(translations, decrypt_secure_files(file_manager, secret, encrypted_secure_value.translations));
-      res.translations = std::move(translations.first);
-      res_credentials.translations = std::move(translations.second);
-      break;
-    }
-    default: {
-      TRY_RESULT(data, decrypt_secure_data(secret, encrypted_secure_value.data));
-      res.data = std::move(data.first);
-      if (!res.data.empty()) {
-        res_credentials.data = std::move(data.second);
-      }
-      CHECK(encrypted_secure_value.files.empty());
-      TRY_RESULT(front_side, decrypt_secure_file(file_manager, secret, encrypted_secure_value.front_side));
-      res.front_side = std::move(front_side.first);
-      if (res.front_side.file_id.is_valid()) {
-        res_credentials.front_side = std::move(front_side.second);
-      }
-      TRY_RESULT(reverse_side, decrypt_secure_file(file_manager, secret, encrypted_secure_value.reverse_side));
-      res.reverse_side = std::move(reverse_side.first);
-      if (res.reverse_side.file_id.is_valid()) {
-        res_credentials.reverse_side = std::move(reverse_side.second);
-      }
-      TRY_RESULT(selfie, decrypt_secure_file(file_manager, secret, encrypted_secure_value.selfie));
-      res.selfie = std::move(selfie.first);
-      if (res.selfie.file_id.is_valid()) {
-        res_credentials.selfie = std::move(selfie.second);
-      }
-      TRY_RESULT(translations, decrypt_secure_files(file_manager, secret, encrypted_secure_value.translations));
-      res.translations = std::move(translations.first);
-      res_credentials.translations = std::move(translations.second);
-      break;
-    }
-  }
-  return SecureValueWithCredentials{std::move(res), std::move(res_credentials)};
-}
-
-Result<vector<SecureValueWithCredentials>> decrypt_secure_values(
-    FileManager *file_manager, const secure_storage::Secret &secret,
-    const vector<EncryptedSecureValue> &encrypted_secure_values) {
-  vector<SecureValueWithCredentials> result;
-  result.reserve(encrypted_secure_values.size());
-  for (auto &encrypted_secure_value : encrypted_secure_values) {
-    auto r_secure_value_with_credentials = decrypt_secure_value(file_manager, secret, encrypted_secure_value);
-    if (r_secure_value_with_credentials.is_ok()) {
-      result.push_back(r_secure_value_with_credentials.move_as_ok());
-    } else {
-      LOG(ERROR) << "Cannot decrypt secure value: " << r_secure_value_with_credentials.error();
-    }
-  }
-  return std::move(result);
-}
-
-static EncryptedSecureFile encrypt_secure_file(FileManager *file_manager, const secure_storage::Secret &master_secret,
-                                               DatedFile file, string &to_hash) {
-  auto file_view = file_manager->get_file_view(file.file_id);
-  if (file_view.empty()) {
-    return EncryptedSecureFile();
-  }
-  if (!file_view.encryption_key().is_secure()) {
-    LOG(ERROR) << "File " << file.file_id << " has no encryption key";
-    return EncryptedSecureFile();
-  }
-  if (!file_view.encryption_key().has_value_hash()) {
-    LOG(ERROR) << "File " << file.file_id << " has no hash";
-    return EncryptedSecureFile();
-  }
-  auto value_hash = file_view.encryption_key().value_hash();
-  auto secret = file_view.encryption_key().secret();
-  EncryptedSecureFile res;
-  res.file = file;
-  res.file_hash = value_hash.as_slice().str();
-  res.encrypted_secret = secret
-                             .encrypt(PSLICE() << master_secret.as_slice() << value_hash.as_slice(), "",
-                                      secure_storage::EnryptionAlgorithm::Sha512)
-                             .as_slice()
-                             .str();
-
-  to_hash.append(res.file_hash);
-  to_hash.append(secret.as_slice().str());
-  return res;
-}
-
-static vector<EncryptedSecureFile> encrypt_secure_files(FileManager *file_manager,
-                                                        const secure_storage::Secret &master_secret,
-                                                        const vector<DatedFile> &files, string &to_hash) {
-  return transform(
-      files, [&](auto dated_file) { return encrypt_secure_file(file_manager, master_secret, dated_file, to_hash); });
-  /*
-  vector<EncryptedSecureFile> result;
-  result.reserve(files.size());
-  for (auto &file : files) {
-    auto encrypted_secure_file = encrypt_secure_file(file_manager, master_secret, file, to_hash);
-    if (encrypted_secure_file.file.file_id.is_valid()) {
-      result.push_back(std::move(encrypted_secure_file));
-    }
-  }
-  return result;
-*/
-}
-
-static EncryptedSecureData encrypt_secure_data(const secure_storage::Secret &master_secret, Slice data,
-                                               string &to_hash) {
-  auto secret = secure_storage::Secret::create_new();
-  auto encrypted = encrypt_value(secret, data).move_as_ok();
-  EncryptedSecureData res;
-  res.encrypted_secret = secret
-                             .encrypt(PSLICE() << master_secret.as_slice() << encrypted.hash.as_slice(), "",
-                                      secure_storage::EnryptionAlgorithm::Sha512)
-                             .as_slice()
-                             .str();
-  res.data = encrypted.data.as_slice().str();
-  res.hash = encrypted.hash.as_slice().str();
-  to_hash.append(res.hash);
-  to_hash.append(secret.as_slice().str());
-  return res;
-}
-
-EncryptedSecureValue encrypt_secure_value(FileManager *file_manager, const secure_storage::Secret &master_secret,
-                                          const SecureValue &secure_value) {
-  EncryptedSecureValue res;
-  res.type = secure_value.type;
-  switch (res.type) {
-    case SecureValueType::EmailAddress:
-    case SecureValueType::PhoneNumber:
-      res.data = EncryptedSecureData{secure_value.data, "", ""};
-      res.hash = secure_storage::calc_value_hash(secure_value.data).as_slice().str();
-      break;
-    case SecureValueType::UtilityBill:
-    case SecureValueType::BankStatement:
-    case SecureValueType::RentalAgreement:
-    case SecureValueType::PassportRegistration:
-    case SecureValueType::TemporaryRegistration: {
-      string to_hash;
-      res.files = encrypt_secure_files(file_manager, master_secret, secure_value.files, to_hash);
-      res.translations = encrypt_secure_files(file_manager, master_secret, secure_value.translations, to_hash);
-      res.hash = secure_storage::calc_value_hash(to_hash).as_slice().str();
-      break;
-    }
-    default: {
-      string to_hash;
-      res.data = encrypt_secure_data(master_secret, secure_value.data, to_hash);
-      CHECK(secure_value.files.empty());
-      res.front_side = encrypt_secure_file(file_manager, master_secret, secure_value.front_side, to_hash);
-      res.reverse_side = encrypt_secure_file(file_manager, master_secret, secure_value.reverse_side, to_hash);
-      res.selfie = encrypt_secure_file(file_manager, master_secret, secure_value.selfie, to_hash);
-      res.translations = encrypt_secure_files(file_manager, master_secret, secure_value.translations, to_hash);
-      res.hash = secure_storage::calc_value_hash(to_hash).as_slice().str();
-      break;
-    }
-  }
-  return res;
-}
-
-static auto as_jsonable_data(const SecureDataCredentials &credentials) {
-  return json_object([&credentials](auto &o) {
-    o("data_hash", base64_encode(credentials.hash));
-    o("secret", base64_encode(credentials.secret));
-  });
-}
-
-static auto as_jsonable_file(const SecureFileCredentials &credentials) {
-  return json_object([&credentials](auto &o) {
-    o("file_hash", base64_encode(credentials.hash));
-    o("secret", base64_encode(credentials.secret));
-  });
-}
-
-static auto as_jsonable_files(const vector<SecureFileCredentials> &files) {
-  return json_array(files, as_jsonable_file);
-}
-
-static Slice secure_value_type_as_slice(SecureValueType type) {
-  switch (type) {
-    case SecureValueType::PersonalDetails:
-      return Slice("personal_details");
-    case SecureValueType::Passport:
-      return Slice("passport");
-    case SecureValueType::DriverLicense:
-      return Slice("driver_license");
-    case SecureValueType::IdentityCard:
-      return Slice("identity_card");
-    case SecureValueType::InternalPassport:
-      return Slice("internal_passport");
-    case SecureValueType::Address:
-      return Slice("address");
-    case SecureValueType::UtilityBill:
-      return Slice("utility_bill");
-    case SecureValueType::BankStatement:
-      return Slice("bank_statement");
-    case SecureValueType::RentalAgreement:
-      return Slice("rental_agreement");
-    case SecureValueType::PassportRegistration:
-      return Slice("passport_registration");
-    case SecureValueType::TemporaryRegistration:
-      return Slice("temporary_registration");
-    case SecureValueType::PhoneNumber:
-      return Slice("phone_number");
-    case SecureValueType::EmailAddress:
-      return Slice("email");
-    default:
-    case SecureValueType::None:
-      UNREACHABLE();
-      return Slice("none");
-  }
-}
-
-static auto credentials_as_jsonable(const std::vector<SecureValueCredentials> &credentials, Slice nonce,
-                                    bool rename_payload_to_nonce) {
-  return json_object([&credentials, nonce, rename_payload_to_nonce](auto &o) {
-    o("secure_data", json_object([&credentials](auto &o) {
-        for (auto &cred : credentials) {
-          if (cred.type == SecureValueType::PhoneNumber || cred.type == SecureValueType::EmailAddress) {
-            continue;
-          }
-
-          o(secure_value_type_as_slice(cred.type), json_object([&cred](auto &o) {
-              if (cred.data) {
-                o("data", as_jsonable_data(cred.data.value()));
-              }
-              if (!cred.files.empty()) {
-                o("files", as_jsonable_files(cred.files));
-              }
-              if (cred.front_side) {
-                o("front_side", as_jsonable_file(cred.front_side.value()));
-              }
-              if (cred.reverse_side) {
-                o("reverse_side", as_jsonable_file(cred.reverse_side.value()));
-              }
-              if (cred.selfie) {
-                o("selfie", as_jsonable_file(cred.selfie.value()));
-              }
-              if (!cred.translations.empty()) {
-                o("translation", as_jsonable_files(cred.translations));
-              }
-            }));
-        }
-      }));
-    o(rename_payload_to_nonce ? Slice("nonce") : Slice("payload"), nonce);
-  });
-}
-
-Result<EncryptedSecureCredentials> get_encrypted_credentials(const std::vector<SecureValueCredentials> &credentials,
-                                                             Slice nonce, Slice public_key,
-                                                             bool rename_payload_to_nonce) {
-  auto encoded_credentials =
-      json_encode<std::string>(credentials_as_jsonable(credentials, nonce, rename_payload_to_nonce));
-  LOG(INFO) << "Created credentials " << encoded_credentials;
-
-  auto secret = secure_storage::Secret::create_new();
-  auto encrypted_value = secure_storage::encrypt_value(secret, encoded_credentials).move_as_ok();
-  EncryptedSecureCredentials res;
-  res.data = encrypted_value.data.as_slice().str();
-  res.hash = encrypted_value.hash.as_slice().str();
-  TRY_RESULT(encrypted_secret, rsa_encrypt_pkcs1_oaep(public_key, secret.as_slice()));
-  res.encrypted_secret = encrypted_secret.as_slice().str();
-  return res;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecureValue.h b/third-party/td/td/td/telegram/SecureValue.h
deleted file mode 100644
index 763bb47fb2..0000000000
--- a/third-party/td/td/td/telegram/SecureValue.h
+++ /dev/null
@@ -1,235 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/SecureStorage.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/optional.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class FileManager;
-
-enum class SecureValueType : int32 {
-  None,
-  PersonalDetails,
-  Passport,
-  DriverLicense,
-  IdentityCard,
-  InternalPassport,
-  Address,
-  UtilityBill,
-  BankStatement,
-  RentalAgreement,
-  PassportRegistration,
-  TemporaryRegistration,
-  PhoneNumber,
-  EmailAddress
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const SecureValueType &type);
-
-vector<SecureValueType> unique_secure_value_types(vector<SecureValueType> types);
-
-SecureValueType get_secure_value_type(const tl_object_ptr<telegram_api::SecureValueType> &secure_value_type);
-SecureValueType get_secure_value_type_td_api(const tl_object_ptr<td_api::PassportElementType> &passport_element_type);
-
-vector<SecureValueType> get_secure_value_types(
-    const vector<tl_object_ptr<telegram_api::SecureValueType>> &secure_value_types);
-vector<SecureValueType> get_secure_value_types_td_api(
-    const vector<tl_object_ptr<td_api::PassportElementType>> &secure_value_types);
-
-td_api::object_ptr<td_api::PassportElementType> get_passport_element_type_object(SecureValueType type);
-td_api::object_ptr<telegram_api::SecureValueType> get_input_secure_value_type(SecureValueType type);
-
-vector<td_api::object_ptr<td_api::PassportElementType>> get_passport_element_types_object(
-    const vector<SecureValueType> &types);
-
-struct SuitableSecureValue {
-  SecureValueType type;
-  bool is_selfie_required;
-  bool is_translation_required;
-  bool is_native_name_required;
-};
-
-SuitableSecureValue get_suitable_secure_value(
-    const tl_object_ptr<telegram_api::secureRequiredType> &secure_required_type);
-
-td_api::object_ptr<td_api::passportSuitableElement> get_passport_suitable_element_object(
-    const SuitableSecureValue &required_element);
-
-td_api::object_ptr<td_api::passportRequiredElement> get_passport_required_element_object(
-    const vector<SuitableSecureValue> &required_element);
-
-vector<td_api::object_ptr<td_api::passportRequiredElement>> get_passport_required_elements_object(
-    const vector<vector<SuitableSecureValue>> &required_elements);
-
-string get_secure_value_data_field_name(SecureValueType type, string field_name);
-
-struct DatedFile {
-  FileId file_id;
-  int32 date = 0;
-};
-
-bool operator==(const DatedFile &lhs, const DatedFile &rhs);
-bool operator!=(const DatedFile &lhs, const DatedFile &rhs);
-
-struct EncryptedSecureFile {
-  DatedFile file;
-  string file_hash;
-  string encrypted_secret;
-};
-
-bool operator==(const EncryptedSecureFile &lhs, const EncryptedSecureFile &rhs);
-bool operator!=(const EncryptedSecureFile &lhs, const EncryptedSecureFile &rhs);
-
-EncryptedSecureFile get_encrypted_secure_file(FileManager *file_manager,
-                                              tl_object_ptr<telegram_api::SecureFile> &&secure_file_ptr);
-
-vector<EncryptedSecureFile> get_encrypted_secure_files(FileManager *file_manager,
-                                                       vector<tl_object_ptr<telegram_api::SecureFile>> &&secure_files);
-
-struct SecureInputFile {
-  FileUploadId file_upload_id;
-  telegram_api::object_ptr<telegram_api::InputSecureFile> input_file;
-};
-telegram_api::object_ptr<telegram_api::InputSecureFile> get_input_secure_file_object(FileManager *file_manager,
-                                                                                     const EncryptedSecureFile &file,
-                                                                                     SecureInputFile &input_file);
-
-vector<telegram_api::object_ptr<telegram_api::InputSecureFile>> get_input_secure_files_object(
-    FileManager *file_manager, const vector<EncryptedSecureFile> &file, vector<SecureInputFile> &input_files);
-
-struct EncryptedSecureData {
-  string data;
-  string hash;
-  string encrypted_secret;
-};
-
-bool operator==(const EncryptedSecureData &lhs, const EncryptedSecureData &rhs);
-bool operator!=(const EncryptedSecureData &lhs, const EncryptedSecureData &rhs);
-
-EncryptedSecureData get_encrypted_secure_data(tl_object_ptr<telegram_api::secureData> &&secure_data);
-
-telegram_api::object_ptr<telegram_api::secureData> get_secure_data_object(const EncryptedSecureData &data);
-
-struct EncryptedSecureValue {
-  SecureValueType type = SecureValueType::None;
-  EncryptedSecureData data;
-  vector<EncryptedSecureFile> files;
-  EncryptedSecureFile front_side;
-  EncryptedSecureFile reverse_side;
-  EncryptedSecureFile selfie;
-  vector<EncryptedSecureFile> translations;
-  string hash;
-};
-
-bool operator==(const EncryptedSecureValue &lhs, const EncryptedSecureValue &rhs);
-bool operator!=(const EncryptedSecureValue &lhs, const EncryptedSecureValue &rhs);
-
-EncryptedSecureValue get_encrypted_secure_value(FileManager *file_manager,
-                                                tl_object_ptr<telegram_api::secureValue> &&secure_value);
-
-vector<EncryptedSecureValue> get_encrypted_secure_values(
-    FileManager *file_manager, vector<tl_object_ptr<telegram_api::secureValue>> &&secure_values);
-
-td_api::object_ptr<td_api::encryptedPassportElement> get_encrypted_passport_element_object(
-    FileManager *file_manager, const EncryptedSecureValue &value);
-telegram_api::object_ptr<telegram_api::inputSecureValue> get_input_secure_value_object(
-    FileManager *file_manager, const EncryptedSecureValue &value, vector<SecureInputFile> &files,
-    optional<SecureInputFile> &front_side, optional<SecureInputFile> &reverse_side, optional<SecureInputFile> &selfie,
-    vector<SecureInputFile> &translations);
-
-vector<td_api::object_ptr<td_api::encryptedPassportElement>> get_encrypted_passport_element_object(
-    FileManager *file_manager, const vector<EncryptedSecureValue> &values);
-
-struct EncryptedSecureCredentials {
-  string data;
-  string hash;
-  string encrypted_secret;
-};
-
-bool operator==(const EncryptedSecureCredentials &lhs, const EncryptedSecureCredentials &rhs);
-bool operator!=(const EncryptedSecureCredentials &lhs, const EncryptedSecureCredentials &rhs);
-
-EncryptedSecureCredentials get_encrypted_secure_credentials(
-    tl_object_ptr<telegram_api::secureCredentialsEncrypted> &&credentials);
-
-telegram_api::object_ptr<telegram_api::secureCredentialsEncrypted> get_secure_credentials_encrypted_object(
-    const EncryptedSecureCredentials &credentials);
-td_api::object_ptr<td_api::encryptedCredentials> get_encrypted_credentials_object(
-    const EncryptedSecureCredentials &credentials);
-
-struct SecureDataCredentials {
-  string secret;
-  string hash;
-};
-struct SecureFileCredentials {
-  string secret;
-  string hash;
-};
-
-struct SecureValueCredentials {
-  SecureValueType type = SecureValueType::None;
-  string hash;
-  optional<SecureDataCredentials> data;
-  std::vector<SecureFileCredentials> files;
-  optional<SecureFileCredentials> front_side;
-  optional<SecureFileCredentials> reverse_side;
-  optional<SecureFileCredentials> selfie;
-  std::vector<SecureFileCredentials> translations;
-};
-
-Result<EncryptedSecureCredentials> get_encrypted_credentials(const std::vector<SecureValueCredentials> &credentials,
-                                                             Slice nonce, Slice public_key,
-                                                             bool rename_payload_to_nonce);
-
-class SecureValue {
- public:
-  SecureValueType type = SecureValueType::None;
-  string data;
-  vector<DatedFile> files;
-  DatedFile front_side;
-  DatedFile reverse_side;
-  DatedFile selfie;
-  vector<DatedFile> translations;
-};
-
-struct SecureValueWithCredentials {
-  SecureValue value;
-  SecureValueCredentials credentials;
-};
-
-Result<SecureValue> get_secure_value(FileManager *file_manager,
-                                     td_api::object_ptr<td_api::InputPassportElement> &&input_passport_element);
-
-Result<td_api::object_ptr<td_api::PassportElement>> get_passport_element_object(FileManager *file_manager,
-                                                                                const SecureValue &value);
-
-td_api::object_ptr<td_api::passportElements> get_passport_elements_object(FileManager *file_manager,
-                                                                          const vector<SecureValue> &values);
-
-Result<SecureValueWithCredentials> decrypt_secure_value(FileManager *file_manager, const secure_storage::Secret &secret,
-                                                        const EncryptedSecureValue &encrypted_secure_value);
-Result<vector<SecureValueWithCredentials>> decrypt_secure_values(
-    FileManager *file_manager, const secure_storage::Secret &secret,
-    const vector<EncryptedSecureValue> &encrypted_secure_values);
-
-EncryptedSecureValue encrypt_secure_value(FileManager *file_manager, const secure_storage::Secret &master_secret,
-                                          const SecureValue &secure_value);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SecureValue.hpp b/third-party/td/td/td/telegram/SecureValue.hpp
deleted file mode 100644
index 0634b2781d..0000000000
--- a/third-party/td/td/td/telegram/SecureValue.hpp
+++ /dev/null
@@ -1,159 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/SecureValue.h"
-
-#include "td/telegram/files/FileId.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void store(DatedFile file, StorerT &storer) {
-  store(file.file_id, storer);
-  store(file.date, storer);
-}
-
-template <class ParserT>
-void parse(DatedFile &file, ParserT &parser) {
-  parse(file.file_id, parser);
-  parse(file.date, parser);
-}
-
-template <class StorerT>
-void store(EncryptedSecureFile file, StorerT &storer) {
-  store(file.file, storer);
-  store(file.file_hash, storer);
-  store(file.encrypted_secret, storer);
-}
-
-template <class ParserT>
-void parse(EncryptedSecureFile &file, ParserT &parser) {
-  parse(file.file, parser);
-  parse(file.file_hash, parser);
-  parse(file.encrypted_secret, parser);
-}
-
-template <class StorerT>
-void store(const EncryptedSecureData &data, StorerT &storer) {
-  store(data.data, storer);
-  store(data.hash, storer);
-  store(data.encrypted_secret, storer);
-}
-
-template <class ParserT>
-void parse(EncryptedSecureData &data, ParserT &parser) {
-  parse(data.data, parser);
-  parse(data.hash, parser);
-  parse(data.encrypted_secret, parser);
-}
-
-template <class StorerT>
-void store(const EncryptedSecureCredentials &credentials, StorerT &storer) {
-  store(credentials.data, storer);
-  store(credentials.hash, storer);
-  store(credentials.encrypted_secret, storer);
-}
-
-template <class ParserT>
-void parse(EncryptedSecureCredentials &credentials, ParserT &parser) {
-  parse(credentials.data, parser);
-  parse(credentials.hash, parser);
-  parse(credentials.encrypted_secret, parser);
-}
-
-template <class StorerT>
-void store(const EncryptedSecureValue &value, StorerT &storer) {
-  bool has_data_hash = !value.data.hash.empty();
-  bool has_files = !value.files.empty();
-  bool has_front_side = value.front_side.file.file_id.is_valid();
-  bool has_reverse_side = value.reverse_side.file.file_id.is_valid();
-  bool has_selfie = value.selfie.file.file_id.is_valid();
-  bool has_hash = !value.hash.empty();
-  bool has_translations = !value.translations.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_data_hash);
-  STORE_FLAG(has_files);
-  STORE_FLAG(has_front_side);
-  STORE_FLAG(has_reverse_side);
-  STORE_FLAG(has_selfie);
-  STORE_FLAG(has_hash);
-  STORE_FLAG(has_translations);
-  END_STORE_FLAGS();
-  store(value.type, storer);
-  if (has_data_hash) {
-    store(value.data, storer);
-  } else {
-    store(value.data.data, storer);
-  }
-  if (has_files) {
-    store(value.files, storer);
-  }
-  if (has_front_side) {
-    store(value.front_side, storer);
-  }
-  if (has_reverse_side) {
-    store(value.reverse_side, storer);
-  }
-  if (has_selfie) {
-    store(value.selfie, storer);
-  }
-  if (has_hash) {
-    store(value.hash, storer);
-  }
-  if (has_translations) {
-    store(value.translations, storer);
-  }
-}
-
-template <class ParserT>
-void parse(EncryptedSecureValue &value, ParserT &parser) {
-  bool has_data_hash;
-  bool has_files;
-  bool has_front_side;
-  bool has_reverse_side;
-  bool has_selfie;
-  bool has_hash;
-  bool has_translations;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_data_hash);
-  PARSE_FLAG(has_files);
-  PARSE_FLAG(has_front_side);
-  PARSE_FLAG(has_reverse_side);
-  PARSE_FLAG(has_selfie);
-  PARSE_FLAG(has_hash);
-  PARSE_FLAG(has_translations);
-  END_PARSE_FLAGS();
-  parse(value.type, parser);
-  if (has_data_hash) {
-    parse(value.data, parser);
-  } else {
-    parse(value.data.data, parser);
-  }
-  if (has_files) {
-    parse(value.files, parser);
-  }
-  if (has_front_side) {
-    parse(value.front_side, parser);
-  }
-  if (has_reverse_side) {
-    parse(value.reverse_side, parser);
-  }
-  if (has_selfie) {
-    parse(value.selfie, parser);
-  }
-  if (has_hash) {
-    parse(value.hash, parser);
-  }
-  if (has_translations) {
-    parse(value.translations, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SendCodeHelper.cpp b/third-party/td/td/td/telegram/SendCodeHelper.cpp
deleted file mode 100644
index a12ee73faa..0000000000
--- a/third-party/td/td/td/telegram/SendCodeHelper.cpp
+++ /dev/null
@@ -1,305 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SendCodeHelper.h"
-
-#include "td/telegram/misc.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Time.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-void SendCodeHelper::on_sent_code(telegram_api::object_ptr<telegram_api::auth_sentCode> sent_code) {
-  phone_code_hash_ = std::move(sent_code->phone_code_hash_);
-  sent_code_info_ = get_sent_authentication_code_info(std::move(sent_code->type_));
-  next_code_info_ = get_authentication_code_info(std::move(sent_code->next_type_));
-  next_code_timestamp_ = Time::now() + sent_code->timeout_;
-
-  if (next_code_info_.type == AuthenticationCodeInfo::Type::None &&
-      (sent_code_info_.type == AuthenticationCodeInfo::Type::FirebaseAndroidSafetyNet ||
-       sent_code_info_.type == AuthenticationCodeInfo::Type::FirebaseAndroidPlayIntegrity ||
-       sent_code_info_.type == AuthenticationCodeInfo::Type::FirebaseIos)) {
-    next_code_info_ = {AuthenticationCodeInfo::Type::Sms, sent_code_info_.length, string()};
-  }
-}
-
-void SendCodeHelper::on_phone_code_hash(string &&phone_code_hash) {
-  phone_code_hash_ = std::move(phone_code_hash);
-}
-
-td_api::object_ptr<td_api::authorizationStateWaitCode> SendCodeHelper::get_authorization_state_wait_code() const {
-  return make_tl_object<td_api::authorizationStateWaitCode>(get_authentication_code_info_object());
-}
-
-td_api::object_ptr<td_api::authenticationCodeInfo> SendCodeHelper::get_authentication_code_info_object() const {
-  return make_tl_object<td_api::authenticationCodeInfo>(
-      phone_number_, get_authentication_code_type_object(sent_code_info_),
-      get_authentication_code_type_object(next_code_info_),
-      max(static_cast<int32>(next_code_timestamp_ - Time::now() + 1 - 1e-9), 0));
-}
-
-Result<telegram_api::auth_resendCode> SendCodeHelper::resend_code(
-    td_api::object_ptr<td_api::ResendCodeReason> &&reason) const {
-  if (next_code_info_.type == AuthenticationCodeInfo::Type::None) {
-    return Status::Error(400, "Authentication code can't be resend");
-  }
-  int32 flags = 0;
-  string reason_str;
-  if (reason != nullptr && reason->get_id() == td_api::resendCodeReasonVerificationFailed::ID) {
-    reason_str = std::move(static_cast<td_api::resendCodeReasonVerificationFailed *>(reason.get())->error_message_);
-  }
-  if (!reason_str.empty() && clean_input_string(reason_str)) {
-    flags |= telegram_api::auth_resendCode::REASON_MASK;
-  }
-  return telegram_api::auth_resendCode(flags, phone_number_, phone_code_hash_, reason_str);
-}
-
-telegram_api::object_ptr<telegram_api::codeSettings> SendCodeHelper::get_input_code_settings(const Settings &settings) {
-  int32 flags = 0;
-  vector<BufferSlice> logout_tokens;
-  string device_token;
-  bool allow_flashcall = false;
-  bool current_number = false;
-  bool allow_app_hash = false;
-  bool allow_missed_call = false;
-  bool allow_firebase = false;
-  bool unknown_number = false;
-  bool is_app_sandbox = false;
-  if (settings != nullptr) {
-    allow_flashcall = settings->allow_flash_call_;
-    current_number = settings->is_current_phone_number_;
-    allow_app_hash = settings->allow_sms_retriever_api_;
-    allow_missed_call = settings->allow_missed_call_;
-    unknown_number = settings->has_unknown_phone_number_;
-    if (settings->firebase_authentication_settings_ != nullptr) {
-      allow_firebase = true;
-      if (settings->firebase_authentication_settings_->get_id() == td_api::firebaseAuthenticationSettingsIos::ID) {
-        flags |= telegram_api::codeSettings::TOKEN_MASK;
-        auto ios_settings = static_cast<const td_api::firebaseAuthenticationSettingsIos *>(
-            settings->firebase_authentication_settings_.get());
-        device_token = ios_settings->device_token_;
-        is_app_sandbox = ios_settings->is_app_sandbox_;
-      }
-    }
-    constexpr size_t MAX_LOGOUT_TOKENS = 20;  // server-side limit
-    for (const auto &token : settings->authentication_tokens_) {
-      auto r_logout_token = base64url_decode(token);
-      if (r_logout_token.is_ok()) {
-        logout_tokens.push_back(BufferSlice(r_logout_token.ok()));
-        if (logout_tokens.size() >= MAX_LOGOUT_TOKENS) {
-          break;
-        }
-      }
-    }
-    if (!logout_tokens.empty()) {
-      flags |= telegram_api::codeSettings::LOGOUT_TOKENS_MASK;
-    }
-  }
-  return telegram_api::make_object<telegram_api::codeSettings>(flags, allow_flashcall, current_number, allow_app_hash,
-                                                               allow_missed_call, allow_firebase, unknown_number,
-                                                               std::move(logout_tokens), device_token, is_app_sandbox);
-}
-
-telegram_api::auth_sendCode SendCodeHelper::send_code(string phone_number, const Settings &settings, int32 api_id,
-                                                      const string &api_hash) {
-  phone_number_ = std::move(phone_number);
-  return telegram_api::auth_sendCode(phone_number_, api_id, api_hash, get_input_code_settings(settings));
-}
-
-telegram_api::auth_requestFirebaseSms SendCodeHelper::request_firebase_sms(const string &token) {
-  string safety_net_token;
-  string play_integrity_token;
-  string ios_push_secret;
-  int32 flags = 0;
-#if TD_ANDROID
-  if (sent_code_info_.type == AuthenticationCodeInfo::Type::FirebaseAndroidSafetyNet) {
-    flags |= telegram_api::auth_requestFirebaseSms::SAFETY_NET_TOKEN_MASK;
-    safety_net_token = token;
-  } else if (sent_code_info_.type == AuthenticationCodeInfo::Type::FirebaseAndroidPlayIntegrity) {
-    flags |= telegram_api::auth_requestFirebaseSms::PLAY_INTEGRITY_TOKEN_MASK;
-    play_integrity_token = token;
-  }
-#elif TD_DARWIN
-  if (sent_code_info_.type == AuthenticationCodeInfo::Type::FirebaseIos) {
-    flags |= telegram_api::auth_requestFirebaseSms::IOS_PUSH_SECRET_MASK;
-    ios_push_secret = token;
-  }
-#endif
-  return telegram_api::auth_requestFirebaseSms(flags, phone_number_, phone_code_hash_, safety_net_token,
-                                               play_integrity_token, ios_push_secret);
-}
-
-telegram_api::auth_reportMissingCode SendCodeHelper::report_missing_code(const string &mobile_network_code) {
-  return telegram_api::auth_reportMissingCode(phone_number_, phone_code_hash_, mobile_network_code);
-}
-
-telegram_api::account_sendVerifyEmailCode SendCodeHelper::send_verify_email_code(const string &email_address) {
-  return telegram_api::account_sendVerifyEmailCode(get_email_verify_purpose_login_setup(), email_address);
-}
-
-telegram_api::account_sendChangePhoneCode SendCodeHelper::send_change_phone_code(Slice phone_number,
-                                                                                 const Settings &settings) {
-  phone_number_ = phone_number.str();
-  return telegram_api::account_sendChangePhoneCode(phone_number_, get_input_code_settings(settings));
-}
-
-telegram_api::account_sendVerifyPhoneCode SendCodeHelper::send_verify_phone_code(Slice phone_number,
-                                                                                 const Settings &settings) {
-  phone_number_ = phone_number.str();
-  return telegram_api::account_sendVerifyPhoneCode(phone_number_, get_input_code_settings(settings));
-}
-
-telegram_api::account_sendConfirmPhoneCode SendCodeHelper::send_confirm_phone_code(const string &hash,
-                                                                                   Slice phone_number,
-                                                                                   const Settings &settings) {
-  phone_number_ = phone_number.str();
-  return telegram_api::account_sendConfirmPhoneCode(hash, get_input_code_settings(settings));
-}
-
-SendCodeHelper::AuthenticationCodeInfo SendCodeHelper::get_authentication_code_info(
-    tl_object_ptr<telegram_api::auth_CodeType> &&code_type_ptr) {
-  if (code_type_ptr == nullptr) {
-    return AuthenticationCodeInfo();
-  }
-
-  switch (code_type_ptr->get_id()) {
-    case telegram_api::auth_codeTypeSms::ID:
-      return {AuthenticationCodeInfo::Type::Sms, 0, string()};
-    case telegram_api::auth_codeTypeCall::ID:
-      return {AuthenticationCodeInfo::Type::Call, 0, string()};
-    case telegram_api::auth_codeTypeFlashCall::ID:
-      return {AuthenticationCodeInfo::Type::FlashCall, 0, string()};
-    case telegram_api::auth_codeTypeMissedCall::ID:
-      return {AuthenticationCodeInfo::Type::MissedCall, 0, string()};
-    case telegram_api::auth_codeTypeFragmentSms::ID:
-      return {AuthenticationCodeInfo::Type::Fragment, 0, string()};
-    default:
-      UNREACHABLE();
-      return AuthenticationCodeInfo();
-  }
-}
-
-SendCodeHelper::AuthenticationCodeInfo SendCodeHelper::get_sent_authentication_code_info(
-    tl_object_ptr<telegram_api::auth_SentCodeType> &&sent_code_type_ptr) {
-  CHECK(sent_code_type_ptr != nullptr);
-  switch (sent_code_type_ptr->get_id()) {
-    case telegram_api::auth_sentCodeTypeApp::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeApp>(sent_code_type_ptr);
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::Message, code_type->length_, ""};
-    }
-    case telegram_api::auth_sentCodeTypeSms::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeSms>(sent_code_type_ptr);
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::Sms, code_type->length_, ""};
-    }
-    case telegram_api::auth_sentCodeTypeCall::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeCall>(sent_code_type_ptr);
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::Call, code_type->length_, ""};
-    }
-    case telegram_api::auth_sentCodeTypeFlashCall::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeFlashCall>(sent_code_type_ptr);
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::FlashCall, 0, std::move(code_type->pattern_)};
-    }
-    case telegram_api::auth_sentCodeTypeMissedCall::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeMissedCall>(sent_code_type_ptr);
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::MissedCall, code_type->length_,
-                                    std::move(code_type->prefix_)};
-    }
-    case telegram_api::auth_sentCodeTypeFragmentSms::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeFragmentSms>(sent_code_type_ptr);
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::Fragment, code_type->length_,
-                                    std::move(code_type->url_)};
-    }
-    case telegram_api::auth_sentCodeTypeFirebaseSms::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeFirebaseSms>(sent_code_type_ptr);
-#if TD_ANDROID
-      if ((code_type->flags_ & telegram_api::auth_sentCodeTypeFirebaseSms::NONCE_MASK) != 0) {
-        return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::FirebaseAndroidSafetyNet, code_type->length_,
-                                      code_type->nonce_.as_slice().str()};
-      }
-      if ((code_type->flags_ & telegram_api::auth_sentCodeTypeFirebaseSms::PLAY_INTEGRITY_NONCE_MASK) != 0) {
-        return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::FirebaseAndroidPlayIntegrity, code_type->length_,
-                                      code_type->play_integrity_nonce_.as_slice().str(), 0,
-                                      code_type->play_integrity_project_id_};
-      }
-#elif TD_DARWIN
-      if ((code_type->flags_ & telegram_api::auth_sentCodeTypeFirebaseSms::RECEIPT_MASK) != 0) {
-        return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::FirebaseIos, code_type->length_,
-                                      std::move(code_type->receipt_), code_type->push_timeout_};
-      }
-#endif
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::Sms, code_type->length_, ""};
-    }
-    case telegram_api::auth_sentCodeTypeSmsWord::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeSmsWord>(sent_code_type_ptr);
-      if (utf8_length(code_type->beginning_) > 1u) {
-        LOG(ERROR) << "Receive \"" << code_type->beginning_ << "\" as word first letter";
-        code_type->beginning_ = string();
-      }
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::SmsWord, 0, code_type->beginning_};
-    }
-    case telegram_api::auth_sentCodeTypeSmsPhrase::ID: {
-      auto code_type = move_tl_object_as<telegram_api::auth_sentCodeTypeSmsPhrase>(sent_code_type_ptr);
-      return AuthenticationCodeInfo{AuthenticationCodeInfo::Type::SmsPhrase, 0, code_type->beginning_};
-    }
-    case telegram_api::auth_sentCodeTypeEmailCode::ID:
-    case telegram_api::auth_sentCodeTypeSetUpEmailRequired::ID:
-    default:
-      UNREACHABLE();
-      return AuthenticationCodeInfo();
-  }
-}
-
-td_api::object_ptr<td_api::AuthenticationCodeType> SendCodeHelper::get_authentication_code_type_object(
-    const AuthenticationCodeInfo &authentication_code_info) {
-  switch (authentication_code_info.type) {
-    case AuthenticationCodeInfo::Type::None:
-      return nullptr;
-    case AuthenticationCodeInfo::Type::Message:
-      return td_api::make_object<td_api::authenticationCodeTypeTelegramMessage>(authentication_code_info.length);
-    case AuthenticationCodeInfo::Type::Sms:
-      return td_api::make_object<td_api::authenticationCodeTypeSms>(authentication_code_info.length);
-    case AuthenticationCodeInfo::Type::Call:
-      return td_api::make_object<td_api::authenticationCodeTypeCall>(authentication_code_info.length);
-    case AuthenticationCodeInfo::Type::FlashCall:
-      return td_api::make_object<td_api::authenticationCodeTypeFlashCall>(authentication_code_info.pattern);
-    case AuthenticationCodeInfo::Type::MissedCall:
-      return td_api::make_object<td_api::authenticationCodeTypeMissedCall>(authentication_code_info.pattern,
-                                                                           authentication_code_info.length);
-    case AuthenticationCodeInfo::Type::Fragment:
-      return td_api::make_object<td_api::authenticationCodeTypeFragment>(authentication_code_info.pattern,
-                                                                         authentication_code_info.length);
-    case AuthenticationCodeInfo::Type::FirebaseAndroidSafetyNet:
-      return td_api::make_object<td_api::authenticationCodeTypeFirebaseAndroid>(
-          td_api::make_object<td_api::firebaseDeviceVerificationParametersSafetyNet>(authentication_code_info.pattern),
-          authentication_code_info.length);
-    case AuthenticationCodeInfo::Type::FirebaseAndroidPlayIntegrity:
-      return td_api::make_object<td_api::authenticationCodeTypeFirebaseAndroid>(
-          td_api::make_object<td_api::firebaseDeviceVerificationParametersPlayIntegrity>(
-              base64url_encode(authentication_code_info.pattern), authentication_code_info.cloud_project_number),
-          authentication_code_info.length);
-    case AuthenticationCodeInfo::Type::FirebaseIos:
-      return td_api::make_object<td_api::authenticationCodeTypeFirebaseIos>(
-          authentication_code_info.pattern, authentication_code_info.push_timeout, authentication_code_info.length);
-    case AuthenticationCodeInfo::Type::SmsWord:
-      return td_api::make_object<td_api::authenticationCodeTypeSmsWord>(authentication_code_info.pattern);
-    case AuthenticationCodeInfo::Type::SmsPhrase:
-      return td_api::make_object<td_api::authenticationCodeTypeSmsPhrase>(authentication_code_info.pattern);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::emailVerifyPurposeLoginSetup>
-SendCodeHelper::get_email_verify_purpose_login_setup() const {
-  return telegram_api::make_object<telegram_api::emailVerifyPurposeLoginSetup>(phone_number_, phone_code_hash_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SendCodeHelper.h b/third-party/td/td/td/telegram/SendCodeHelper.h
deleted file mode 100644
index 600068ba52..0000000000
--- a/third-party/td/td/td/telegram/SendCodeHelper.h
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class SendCodeHelper {
- public:
-  void on_sent_code(telegram_api::object_ptr<telegram_api::auth_sentCode> sent_code);
-
-  void on_phone_code_hash(string &&phone_code_hash);
-
-  td_api::object_ptr<td_api::authorizationStateWaitCode> get_authorization_state_wait_code() const;
-
-  td_api::object_ptr<td_api::authenticationCodeInfo> get_authentication_code_info_object() const;
-
-  Result<telegram_api::auth_resendCode> resend_code(td_api::object_ptr<td_api::ResendCodeReason> &&reason) const;
-
-  using Settings = td_api::object_ptr<td_api::phoneNumberAuthenticationSettings>;
-
-  telegram_api::auth_sendCode send_code(string phone_number, const Settings &settings, int32 api_id,
-                                        const string &api_hash);
-
-  telegram_api::auth_requestFirebaseSms request_firebase_sms(const string &token);
-
-  telegram_api::auth_reportMissingCode report_missing_code(const string &mobile_network_code);
-
-  telegram_api::account_sendVerifyEmailCode send_verify_email_code(const string &email_address);
-
-  telegram_api::account_sendChangePhoneCode send_change_phone_code(Slice phone_number, const Settings &settings);
-
-  telegram_api::account_sendVerifyPhoneCode send_verify_phone_code(Slice phone_number, const Settings &settings);
-
-  telegram_api::account_sendConfirmPhoneCode send_confirm_phone_code(const string &hash, Slice phone_number,
-                                                                     const Settings &settings);
-
-  telegram_api::object_ptr<telegram_api::emailVerifyPurposeLoginSetup> get_email_verify_purpose_login_setup() const;
-
-  Slice phone_number() const {
-    return phone_number_;
-  }
-  Slice phone_code_hash() const {
-    return phone_code_hash_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  struct AuthenticationCodeInfo {
-    enum class Type : int32 {
-      None,
-      Message,
-      Sms,
-      Call,
-      FlashCall,
-      MissedCall,
-      Fragment,
-      FirebaseAndroidSafetyNet,
-      FirebaseIos,
-      SmsWord,
-      SmsPhrase,
-      FirebaseAndroidPlayIntegrity
-    };
-    Type type = Type::None;
-    int32 length = 0;
-    int32 push_timeout = 0;
-    int64 cloud_project_number = 0;
-    string pattern;
-
-    AuthenticationCodeInfo() = default;
-    AuthenticationCodeInfo(Type type, int32 length, string pattern, int32 push_timeout = 0,
-                           int64 cloud_project_number = 0)
-        : type(type)
-        , length(length)
-        , push_timeout(push_timeout)
-        , cloud_project_number(cloud_project_number)
-        , pattern(std::move(pattern)) {
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  string phone_number_;
-  string phone_code_hash_;
-
-  SendCodeHelper::AuthenticationCodeInfo sent_code_info_;
-  SendCodeHelper::AuthenticationCodeInfo next_code_info_;
-  double next_code_timestamp_ = 0.0;
-
-  static AuthenticationCodeInfo get_authentication_code_info(
-      tl_object_ptr<telegram_api::auth_CodeType> &&code_type_ptr);
-  static AuthenticationCodeInfo get_sent_authentication_code_info(
-      tl_object_ptr<telegram_api::auth_SentCodeType> &&sent_code_type_ptr);
-
-  static td_api::object_ptr<td_api::AuthenticationCodeType> get_authentication_code_type_object(
-      const AuthenticationCodeInfo &authentication_code_info);
-
-  static telegram_api::object_ptr<telegram_api::codeSettings> get_input_code_settings(const Settings &settings);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SendCodeHelper.hpp b/third-party/td/td/td/telegram/SendCodeHelper.hpp
deleted file mode 100644
index a413a64e2d..0000000000
--- a/third-party/td/td/td/telegram/SendCodeHelper.hpp
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/SendCodeHelper.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void SendCodeHelper::AuthenticationCodeInfo::store(StorerT &storer) const {
-  using td::store;
-  store(type, storer);
-  store(length, storer);
-  store(push_timeout, storer);
-  store(cloud_project_number, storer);
-  store(pattern, storer);
-}
-
-template <class ParserT>
-void SendCodeHelper::AuthenticationCodeInfo::parse(ParserT &parser) {
-  using td::parse;
-  parse(type, parser);
-  parse(length, parser);
-  parse(push_timeout, parser);
-  parse(cloud_project_number, parser);
-  parse(pattern, parser);
-}
-
-template <class StorerT>
-void SendCodeHelper::store(StorerT &storer) const {
-  using td::store;
-  store(phone_number_, storer);
-  store(true, storer);
-  store(phone_code_hash_, storer);
-  store(sent_code_info_, storer);
-  store(next_code_info_, storer);
-  store_time(next_code_timestamp_, storer);
-}
-
-template <class ParserT>
-void SendCodeHelper::parse(ParserT &parser) {
-  using td::parse;
-  parse(phone_number_, parser);
-  bool legacy_is_registered;
-  parse(legacy_is_registered, parser);
-  parse(phone_code_hash_, parser);
-  parse(sent_code_info_, parser);
-  parse(next_code_info_, parser);
-  parse_time(next_code_timestamp_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SentEmailCode.cpp b/third-party/td/td/td/telegram/SentEmailCode.cpp
deleted file mode 100644
index a8a3ad0ef0..0000000000
--- a/third-party/td/td/td/telegram/SentEmailCode.cpp
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SentEmailCode.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-SentEmailCode::SentEmailCode(telegram_api::object_ptr<telegram_api::account_sentEmailCode> &&email_code)
-    : email_address_pattern_(std::move(email_code->email_pattern_)), code_length_(email_code->length_) {
-  if (code_length_ < 0 || code_length_ >= 100) {
-    LOG(ERROR) << "Receive wrong email code length " << code_length_;
-    code_length_ = 0;
-  }
-}
-
-td_api::object_ptr<td_api::emailAddressAuthenticationCodeInfo>
-SentEmailCode::get_email_address_authentication_code_info_object() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::emailAddressAuthenticationCodeInfo>(email_address_pattern_, code_length_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SentEmailCode.h b/third-party/td/td/td/telegram/SentEmailCode.h
deleted file mode 100644
index 8c5aa907d7..0000000000
--- a/third-party/td/td/td/telegram/SentEmailCode.h
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class SentEmailCode {
-  string email_address_pattern_;
-  int32 code_length_ = 0;
-
- public:
-  SentEmailCode() = default;
-
-  SentEmailCode(string &&email_address_pattern, int32 code_length)
-      : email_address_pattern_(std::move(email_address_pattern)), code_length_(code_length) {
-  }
-
-  explicit SentEmailCode(telegram_api::object_ptr<telegram_api::account_sentEmailCode> &&email_code);
-
-  td_api::object_ptr<td_api::emailAddressAuthenticationCodeInfo> get_email_address_authentication_code_info_object()
-      const;
-
-  bool is_empty() const {
-    return email_address_pattern_.empty();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(email_address_pattern_, storer);
-    td::store(code_length_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(email_address_pattern_, parser);
-    td::parse(code_length_, parser);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SequenceDispatcher.cpp b/third-party/td/td/td/telegram/SequenceDispatcher.cpp
deleted file mode 100644
index bbd89e4648..0000000000
--- a/third-party/td/td/td/telegram/SequenceDispatcher.cpp
+++ /dev/null
@@ -1,462 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SequenceDispatcher.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/Td.h"
-
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/ChainScheduler.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Promise.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <limits>
-
-namespace td {
-
-/*** Sequence Dispatcher ***/
-// Sends queries with invokeAfter.
-//
-// Each query has three states Start/Wait/Finish
-//
-// finish_i points to the first not Finish query.
-// next_i points to the next query to be sent.
-//
-// Each query has generation of InvokeAfter chain.
-//
-// When query is send, its generation is set to current chain generation.
-//
-// When query is failed and its generation is equals to current generation we must start new chain:
-// increment the generation and set next_i to finish_i.
-//
-// last_sent_i points to the last sent query in current chain.
-//
-void SequenceDispatcher::send_with_callback(NetQueryPtr query, ActorShared<NetQueryCallback> callback) {
-  cancel_timeout();
-  query->debug("Waiting at SequenceDispatcher");
-  auto query_weak_ref = query.get_weak();
-  data_.push_back(Data{State::Start, std::move(query_weak_ref), std::move(query), std::move(callback), 0, 0, 0});
-  loop();
-}
-
-void SequenceDispatcher::check_timeout(Data &data) {
-  if (data.state_ != State::Start) {
-    return;
-  }
-  data.query_->total_timeout_ += data.total_timeout_;
-  data.total_timeout_ = 0;
-  if (data.query_->total_timeout_ > data.query_->total_timeout_limit_) {
-    LOG(WARNING) << "Fail " << data.query_ << " to " << data.query_->source_ << " because total_timeout "
-                 << data.query_->total_timeout_ << " is greater than total_timeout_limit "
-                 << data.query_->total_timeout_limit_;
-    data.query_->set_error(Status::Error(429, PSLICE() << "Too Many Requests: retry after " << data.last_timeout_));
-    data.state_ = State::Dummy;
-    try_resend_query(data, std::move(data.query_));
-  }
-}
-
-void SequenceDispatcher::try_resend_query(Data &data, NetQueryPtr query) {
-  size_t pos = &data - &data_[0];
-  CHECK(pos < data_.size());
-  CHECK(data.state_ == State::Dummy);
-  data.state_ = State::Wait;
-  wait_cnt_++;
-  auto token = pos + id_offset_;
-  // TODO: if query is ok, use NetQueryCallback::on_result
-  if (data.callback_.empty()) {
-    do_finish(data);
-    send_closure_later(G()->td(), &Td::on_result, std::move(query));
-    loop();
-    return;
-  }
-  auto promise = PromiseCreator::lambda([&, self = actor_shared(this, token)](NetQueryPtr query) mutable {
-    if (!query.empty()) {
-      send_closure(std::move(self), &SequenceDispatcher::on_resend_ok, std::move(query));
-    } else {
-      send_closure(std::move(self), &SequenceDispatcher::on_resend_error);
-    }
-  });
-  send_closure(data.callback_, &NetQueryCallback::on_result_resendable, std::move(query), std::move(promise));
-}
-
-SequenceDispatcher::Data &SequenceDispatcher::data_from_token() {
-  auto token = narrow_cast<size_t>(get_link_token());
-  auto pos = token - id_offset_;
-  CHECK(pos < data_.size());
-  auto &data = data_[pos];
-  CHECK(data.state_ == State::Wait);
-  CHECK(wait_cnt_ > 0);
-  wait_cnt_--;
-  data.state_ = State::Dummy;
-  return data;
-}
-
-void SequenceDispatcher::on_resend_ok(NetQueryPtr query) {
-  auto &data = data_from_token();
-  data.query_ = std::move(query);
-  do_resend(data);
-  loop();
-}
-
-void SequenceDispatcher::on_resend_error() {
-  auto &data = data_from_token();
-  do_finish(data);
-  loop();
-}
-
-void SequenceDispatcher::do_resend(Data &data) {
-  CHECK(data.state_ == State::Dummy);
-  data.state_ = State::Start;
-  if (data.generation_ == generation_) {
-    next_i_ = finish_i_;
-    generation_++;
-    last_sent_i_ = std::numeric_limits<size_t>::max();
-  }
-  check_timeout(data);
-}
-
-void SequenceDispatcher::do_finish(Data &data) {
-  CHECK(data.state_ == State::Dummy);
-  data.state_ = State::Finish;
-  if (!parent_.empty()) {
-    send_closure(parent_, &Parent::on_result);
-  }
-}
-
-void SequenceDispatcher::on_result(NetQueryPtr query) {
-  auto &data = data_from_token();
-  size_t pos = &data - &data_[0];
-  CHECK(pos < data_.size());
-
-  if (query->last_timeout_ != 0) {
-    for (auto i = pos + 1; i < data_.size(); i++) {
-      data_[i].total_timeout_ += query->last_timeout_;
-      data_[i].last_timeout_ = query->last_timeout_;
-      check_timeout(data_[i]);
-    }
-    query->last_timeout_ = 0;
-  }
-
-  if (query->is_error() && (query->error().code() == NetQuery::ResendInvokeAfter ||
-                            (query->error().code() == 400 && (query->error().message() == "MSG_WAIT_FAILED" ||
-                                                              query->error().message() == "MSG_WAIT_TIMEOUT")))) {
-    VLOG(net_query) << "Resend " << query;
-    query->resend();
-    query->debug("Waiting at SequenceDispatcher");
-    data.query_ = std::move(query);
-    do_resend(data);
-  } else {
-    try_resend_query(data, std::move(query));
-  }
-  loop();
-}
-
-void SequenceDispatcher::loop() {
-  for (; finish_i_ < data_.size() && data_[finish_i_].state_ == State::Finish; finish_i_++) {
-  }
-  if (next_i_ < finish_i_) {
-    next_i_ = finish_i_;
-  }
-  for (; next_i_ < data_.size() && data_[next_i_].state_ != State::Wait && wait_cnt_ < MAX_SIMULTANEOUS_WAIT;
-       next_i_++) {
-    if (data_[next_i_].state_ == State::Finish) {
-      continue;
-    }
-    NetQueryRef invoke_after;
-    if (last_sent_i_ != std::numeric_limits<size_t>::max() && data_[last_sent_i_].state_ == State::Wait) {
-      invoke_after = data_[last_sent_i_].net_query_ref_;
-    }
-    if (!invoke_after.empty()) {
-      data_[next_i_].query_->set_invoke_after({invoke_after});
-    } else {
-      data_[next_i_].query_->set_invoke_after({});
-    }
-    data_[next_i_].query_->last_timeout_ = 0;
-
-    VLOG(net_query) << "Send " << data_[next_i_].query_;
-
-    data_[next_i_].query_->debug("send to Td::send_with_callback");
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(data_[next_i_].query_),
-                                                       actor_shared(this, next_i_ + id_offset_));
-    data_[next_i_].state_ = State::Wait;
-    wait_cnt_++;
-    data_[next_i_].generation_ = generation_;
-    last_sent_i_ = next_i_;
-  }
-
-  try_shrink();
-
-  if (finish_i_ == data_.size() && !parent_.empty()) {
-    set_timeout_in(5);
-  }
-}
-
-void SequenceDispatcher::try_shrink() {
-  if (finish_i_ * 2 > data_.size() && data_.size() > 5) {
-    CHECK(finish_i_ <= next_i_);
-    data_.erase(data_.begin(), data_.begin() + finish_i_);
-    next_i_ -= finish_i_;
-    if (last_sent_i_ != std::numeric_limits<size_t>::max()) {
-      if (last_sent_i_ >= finish_i_) {
-        last_sent_i_ -= finish_i_;
-      } else {
-        last_sent_i_ = std::numeric_limits<size_t>::max();
-      }
-    }
-    id_offset_ += finish_i_;
-    finish_i_ = 0;
-  }
-}
-
-void SequenceDispatcher::timeout_expired() {
-  if (finish_i_ != data_.size()) {
-    return;
-  }
-  CHECK(!parent_.empty());
-  set_timeout_in(1);
-  LOG(DEBUG) << "SequenceDispatcher ready to close";
-  send_closure(parent_, &Parent::ready_to_close);
-}
-
-void SequenceDispatcher::hangup() {
-  stop();
-}
-
-void SequenceDispatcher::tear_down() {
-  for (auto &data : data_) {
-    if (data.query_.empty()) {
-      continue;
-    }
-    data.state_ = State::Dummy;
-    data.query_->set_error(Global::request_aborted_error());
-    do_finish(data);
-  }
-}
-
-void SequenceDispatcher::close_silent() {
-  for (auto &data : data_) {
-    if (!data.query_.empty()) {
-      data.query_->clear();
-    }
-  }
-  stop();
-}
-
-void MultiSequenceDispatcherOld::send(NetQueryPtr query) {
-  auto callback = query->move_callback();
-  auto chain_ids = query->get_chain_ids();
-  query->set_in_sequence_dispatcher(true);
-  CHECK(all_of(chain_ids, [](auto chain_id) { return chain_id != 0; }));
-  CHECK(!chain_ids.empty());
-  auto sequence_id = chain_ids[0];
-
-  auto it_ok = dispatchers_.emplace(sequence_id, Data{0, ActorOwn<SequenceDispatcher>()});
-  auto &data = it_ok.first->second;
-  if (it_ok.second) {
-    LOG(DEBUG) << "Create SequenceDispatcher " << sequence_id;
-    data.dispatcher_ = create_actor<SequenceDispatcher>("SequenceDispatcher", actor_shared(this, sequence_id));
-  }
-  data.cnt_++;
-  query->debug(PSTRING() << "send to SequenceDispatcher " << sequence_id);
-  send_closure(data.dispatcher_, &SequenceDispatcher::send_with_callback, std::move(query), std::move(callback));
-}
-
-void MultiSequenceDispatcherOld::on_result() {
-  auto it = dispatchers_.find(get_link_token());
-  CHECK(it != dispatchers_.end());
-  it->second.cnt_--;
-}
-
-void MultiSequenceDispatcherOld::ready_to_close() {
-  auto it = dispatchers_.find(get_link_token());
-  CHECK(it != dispatchers_.end());
-  if (it->second.cnt_ == 0) {
-    LOG(DEBUG) << "Close SequenceDispatcher " << get_link_token();
-    dispatchers_.erase(it);
-  }
-}
-
-class MultiSequenceDispatcherImpl final : public MultiSequenceDispatcher {
- public:
-  void send(NetQueryPtr query) final {
-    auto callback = query->move_callback();
-    auto chain_ids = query->get_chain_ids();
-    query->set_in_sequence_dispatcher(true);
-    CHECK(all_of(chain_ids, [](auto chain_id) { return chain_id != 0; }));
-    Node node;
-    node.net_query = std::move(query);
-    node.net_query->debug("Waiting at SequenceDispatcher");
-    node.net_query_ref = node.net_query.get_weak();
-    node.callback = std::move(callback);
-    scheduler_.create_task(chain_ids, std::move(node));
-    loop();
-  }
-
- private:
-  struct Node {
-    NetQueryRef net_query_ref;
-    NetQueryPtr net_query;
-    int32 total_timeout{0};
-    int32 last_timeout{0};
-    ActorShared<NetQueryCallback> callback;
-    friend StringBuilder &operator<<(StringBuilder &sb, const Node &node) {
-      return sb << node.net_query;
-    }
-  };
-  ChainScheduler<Node> scheduler_;
-
-  using TaskId = ChainScheduler<Node>::TaskId;
-
-  bool check_timeout(Node &node) {
-    auto &net_query = node.net_query;
-    if (net_query.empty() || net_query->is_ready()) {
-      return false;
-    }
-    if (node.total_timeout > 0) {
-      net_query->total_timeout_ += node.total_timeout;
-      LOG(INFO) << "Set total_timeout to " << net_query->total_timeout_ << " for " << net_query->id();
-      node.total_timeout = 0;
-
-      if (net_query->total_timeout_ > net_query->total_timeout_limit_) {
-        LOG(WARNING) << "Fail " << net_query << " to " << net_query->source_ << " because total_timeout "
-                     << net_query->total_timeout_ << " is greater than total_timeout_limit "
-                     << net_query->total_timeout_limit_;
-        net_query->set_error(Status::Error(429, PSLICE() << "Too Many Requests: retry after " << node.last_timeout));
-        return true;
-      }
-    }
-    return false;
-  }
-
-  void on_result(NetQueryPtr query) final {
-    auto task_id = TaskId(get_link_token());
-    auto &node = *scheduler_.get_task_extra(task_id);
-
-    if (query->last_timeout_ != 0) {
-      vector<TaskId> to_check_timeout;
-
-      auto tl_constructor = query->tl_constructor();
-      scheduler_.for_each_dependent(task_id, [&](TaskId child_task_id) {
-        auto &child_node = *scheduler_.get_task_extra(child_task_id);
-        if (child_node.net_query_ref->tl_constructor() == tl_constructor && child_task_id != task_id) {
-          child_node.total_timeout += query->last_timeout_;
-          child_node.last_timeout = query->last_timeout_;
-          to_check_timeout.push_back(child_task_id);
-        }
-      });
-      query->last_timeout_ = 0;
-
-      for (auto dependent_task_id : to_check_timeout) {
-        auto &child_node = *scheduler_.get_task_extra(dependent_task_id);
-        if (check_timeout(child_node)) {
-          scheduler_.pause_task(dependent_task_id);
-          try_resend(dependent_task_id);
-        }
-      }
-    }
-
-    if (query->is_error() && (query->error().code() == NetQuery::ResendInvokeAfter ||
-                              (query->error().code() == 400 && (query->error().message() == "MSG_WAIT_FAILED" ||
-                                                                query->error().message() == "MSG_WAIT_TIMEOUT")))) {
-      VLOG(net_query) << "Resend " << query;
-      query->resend();
-      do_resend(task_id, node, std::move(query));
-      loop();
-      return;
-    }
-    node.net_query = std::move(query);
-    try_resend(task_id);
-  }
-
-  void try_resend(TaskId task_id) {
-    auto &node = *scheduler_.get_task_extra(task_id);
-    if (node.callback.empty()) {
-      auto query = std::move(node.net_query);
-      scheduler_.finish_task(task_id);
-      send_closure_later(G()->td(), &Td::on_result, std::move(query));
-      loop();
-      return;
-    }
-    auto promise = promise_send_closure(actor_shared(this, task_id), &MultiSequenceDispatcherImpl::on_resend);
-    send_closure(node.callback, &NetQueryCallback::on_result_resendable, std::move(node.net_query), std::move(promise));
-  }
-
-  void on_resend(Result<NetQueryPtr> r_query) {
-    auto task_id = TaskId(get_link_token());
-    auto &node = *scheduler_.get_task_extra(task_id);
-    if (r_query.is_error()) {
-      scheduler_.finish_task(task_id);
-    } else {
-      do_resend(task_id, node, r_query.move_as_ok());
-    }
-    loop();
-  }
-
-  void do_resend(TaskId task_id, Node &node, NetQueryPtr &&query) {
-    node.net_query = std::move(query);
-    node.net_query->debug("Waiting at SequenceDispatcher");
-    node.net_query_ref = node.net_query.get_weak();
-    if (check_timeout(node)) {
-      scheduler_.pause_task(task_id);
-      try_resend(task_id);
-    } else {
-      scheduler_.reset_task(task_id);
-    }
-  }
-
-  void loop() final {
-    flush_pending_queries();
-  }
-
-  void tear_down() final {
-    // Leaves scheduler_ in an invalid state, but we are closing anyway
-    scheduler_.for_each([](Node &node) {
-      if (node.net_query.empty()) {
-        return;
-      }
-      node.net_query->set_error(Global::request_aborted_error());
-    });
-  }
-
-  void flush_pending_queries() {
-    while (true) {
-      auto o_task = scheduler_.start_next_task();
-      if (!o_task) {
-        break;
-      }
-      auto task = o_task.unwrap();
-      auto &node = *scheduler_.get_task_extra(task.task_id);
-      CHECK(!node.net_query.empty());
-
-      auto query = std::move(node.net_query);
-      vector<NetQueryRef> parents;
-      for (auto parent_id : task.parents) {
-        auto &parent_node = *scheduler_.get_task_extra(parent_id);
-        parents.push_back(parent_node.net_query_ref);
-        CHECK(!parent_node.net_query_ref.empty());
-      }
-
-      query->set_invoke_after(std::move(parents));
-      query->last_timeout_ = 0;
-      query->debug("dispatch_with_callback");
-      G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, task.task_id));
-    }
-  }
-};
-
-ActorOwn<MultiSequenceDispatcher> MultiSequenceDispatcher::create(Slice name) {
-  return ActorOwn<MultiSequenceDispatcher>(create_actor<MultiSequenceDispatcherImpl>(name));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SequenceDispatcher.h b/third-party/td/td/td/telegram/SequenceDispatcher.h
deleted file mode 100644
index c44d5988f2..0000000000
--- a/third-party/td/td/td/telegram/SequenceDispatcher.h
+++ /dev/null
@@ -1,100 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-
-#include <limits>
-
-namespace td {
-
-class SequenceDispatcher final : public NetQueryCallback {
- public:
-  class Parent : public Actor {
-   public:
-    virtual void ready_to_close() = 0;
-    virtual void on_result() = 0;
-  };
-  SequenceDispatcher() = default;
-  explicit SequenceDispatcher(ActorShared<Parent> parent) : parent_(std::move(parent)) {
-  }
-  void send_with_callback(NetQueryPtr query, ActorShared<NetQueryCallback> callback);
-  void on_result(NetQueryPtr query) final;
-  void close_silent();
-
- private:
-  enum class State : int32 { Start, Wait, Finish, Dummy };
-  struct Data {
-    State state_;
-    NetQueryRef net_query_ref_;
-    NetQueryPtr query_;
-    ActorShared<NetQueryCallback> callback_;
-    uint64 generation_;
-    int32 total_timeout_;
-    int32 last_timeout_;
-  };
-
-  ActorShared<Parent> parent_;
-  size_t id_offset_ = 1;
-  vector<Data> data_;
-  size_t finish_i_ = 0;  // skip state_ == State::Finish
-  size_t next_i_ = 0;
-  size_t last_sent_i_ = std::numeric_limits<size_t>::max();
-  uint64 generation_ = 1;
-  uint32 session_rand_ = Random::secure_int32();
-
-  static constexpr int32 MAX_SIMULTANEOUS_WAIT = 10;
-  uint32 wait_cnt_ = 0;
-
-  void check_timeout(Data &data);
-
-  void try_resend_query(Data &data, NetQueryPtr query);
-  Data &data_from_token();
-  void on_resend_ok(NetQueryPtr query);
-  void on_resend_error();
-  void do_resend(Data &data);
-  void do_finish(Data &data);
-
-  void loop() final;
-  void try_shrink();
-
-  void timeout_expired() final;
-  void hangup() final;
-  void tear_down() final;
-};
-
-class MultiSequenceDispatcherOld final : public SequenceDispatcher::Parent {
- public:
-  void send(NetQueryPtr query);
-  static ActorOwn<MultiSequenceDispatcherOld> create(Slice name) {
-    return create_actor<MultiSequenceDispatcherOld>(name);
-  }
-
- private:
-  struct Data {
-    int32 cnt_;
-    ActorOwn<SequenceDispatcher> dispatcher_;
-  };
-  FlatHashMap<uint64, Data> dispatchers_;
-  void on_result() final;
-  void ready_to_close() final;
-};
-
-class MultiSequenceDispatcher : public NetQueryCallback {
- public:
-  virtual void send(NetQueryPtr query) = 0;
-  static ActorOwn<MultiSequenceDispatcher> create(Slice name);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ServerMessageId.h b/third-party/td/td/td/telegram/ServerMessageId.h
deleted file mode 100644
index c5d4f77d74..0000000000
--- a/third-party/td/td/td/telegram/ServerMessageId.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <type_traits>
-
-namespace td {
-
-class ServerMessageId {
-  int32 id = 0;
-
- public:
-  ServerMessageId() = default;
-
-  explicit constexpr ServerMessageId(int32 message_id) : id(message_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  ServerMessageId(T message_id) = delete;
-
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const ServerMessageId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const ServerMessageId &other) const {
-    return id != other.id;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SetWithPosition.h b/third-party/td/td/td/telegram/SetWithPosition.h
deleted file mode 100644
index c77991bb98..0000000000
--- a/third-party/td/td/td/telegram/SetWithPosition.h
+++ /dev/null
@@ -1,228 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-
-#include <algorithm>
-#include <set>
-#include <utility>
-
-namespace td {
-
-template <class T>
-class FastSetWithPosition {
- public:
-  std::vector<T> get_some_elements() const {
-    std::vector<T> res;
-    res.reserve(4);
-    if (!checked_.empty()) {
-      res.push_back(*checked_.begin());
-      res.push_back(*checked_.rbegin());
-    }
-    if (!not_checked_.empty()) {
-      res.push_back(*not_checked_.begin());
-      res.push_back(*not_checked_.rbegin());
-    }
-    td::unique(res);
-    if (res.size() > 2) {
-      res.erase(res.begin() + 1, res.end() - 1);
-    }
-    return res;
-  }
-
-  bool add(T x) {
-    if (checked_.count(x) != 0) {
-      return false;
-    }
-    return not_checked_.insert(x).second;
-  }
-
-  bool remove(T x) {
-    return checked_.erase(x) != 0 || not_checked_.erase(x) != 0;
-  }
-
-  bool has_next() const {
-    return !not_checked_.empty();
-  }
-
-  void reset_position() {
-    if (not_checked_.empty()) {
-      not_checked_ = std::move(checked_);
-    } else {
-      not_checked_.insert(checked_.begin(), checked_.end());
-    }
-    reset_to_empty(checked_);
-  }
-
-  T next() {
-    CHECK(has_next());
-    auto it = not_checked_.begin();
-    auto res = *it;
-    not_checked_.erase(it);
-    checked_.insert(res);
-    return res;
-  }
-
-  void merge(FastSetWithPosition &&other) {
-    if (this == &other) {
-      return;
-    }
-
-    if (size() < other.size()) {
-      std::swap(*this, other);
-    }
-    for (auto x : other.checked_) {
-      not_checked_.erase(x);
-      checked_.insert(x);
-    }
-
-    for (auto x : other.not_checked_) {
-      if (checked_.count(x) != 0) {
-        continue;
-      }
-      not_checked_.insert(x);
-    }
-  }
-
-  size_t size() const {
-    return checked_.size() + not_checked_.size();
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
- private:
-  std::set<T> checked_;
-  std::set<T> not_checked_;
-};
-
-template <class T>
-class SetWithPosition {
- public:
-  std::vector<T> get_some_elements() const {
-    if (fast_) {
-      return fast_->get_some_elements();
-    }
-    if (has_value_) {
-      return {value_};
-    }
-    return {};
-  }
-
-  bool add(T x) {
-    if (fast_) {
-      return fast_->add(x);
-    }
-    if (!has_value_) {
-      value_ = x;
-      has_value_ = true;
-      is_checked_ = false;
-      return true;
-    }
-    if (value_ == x) {
-      return false;
-    }
-    make_fast();
-    return fast_->add(x);
-  }
-
-  bool remove(T x) {
-    if (fast_) {
-      return fast_->remove(x);
-    }
-    if (has_value_ && value_ == x) {
-      has_value_ = false;
-      is_checked_ = false;
-      return true;
-    }
-    return false;
-  }
-
-  bool has_next() const {
-    if (fast_) {
-      return fast_->has_next();
-    }
-    return has_value_ && !is_checked_;
-  }
-
-  void reset_position() {
-    if (fast_) {
-      fast_->reset_position();
-      return;
-    }
-    is_checked_ = false;
-  }
-
-  T next() {
-    CHECK(has_next());
-    if (fast_) {
-      return fast_->next();
-    }
-    is_checked_ = true;
-    return value_;
-  }
-
-  void merge(SetWithPosition &&other) {
-    if (this == &other) {
-      return;
-    }
-    if (size() < other.size()) {
-      std::swap(*this, other);
-    }
-    if (other.size() == 0) {
-      return;
-    }
-    if (other.fast_ == nullptr && fast_ == nullptr && value_ == other.value_) {
-      is_checked_ |= other.is_checked_;
-      other.value_ = T();
-      other.has_value_ = false;
-      other.is_checked_ = false;
-      return;
-    }
-    make_fast();
-    other.make_fast();
-    fast_->merge(std::move(*other.fast_));
-    reset_to_empty(other);
-  }
-
-  size_t size() const {
-    if (fast_) {
-      return fast_->size();
-    }
-    return static_cast<size_t>(has_value_);
-  }
-
-  bool empty() const {
-    if (fast_) {
-      return false;
-    }
-    return !has_value_;
-  }
-
- private:
-  T value_{};
-  bool has_value_{false};
-  bool is_checked_{false};
-  unique_ptr<FastSetWithPosition<T>> fast_;
-
-  void make_fast() {
-    if (fast_) {
-      return;
-    }
-    fast_ = make_unique<FastSetWithPosition<T>>();
-    CHECK(has_value_);
-    fast_->add(value_);
-    if (is_checked_) {
-      fast_->next();
-    }
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SharedDialog.cpp b/third-party/td/td/td/telegram/SharedDialog.cpp
deleted file mode 100644
index 89135e4d80..0000000000
--- a/third-party/td/td/td/telegram/SharedDialog.cpp
+++ /dev/null
@@ -1,83 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SharedDialog.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-namespace td {
-
-SharedDialog::SharedDialog(Td *td, telegram_api::object_ptr<telegram_api::RequestedPeer> &&requested_peer_ptr) {
-  CHECK(requested_peer_ptr != nullptr);
-  switch (requested_peer_ptr->get_id()) {
-    case telegram_api::requestedPeerUser::ID: {
-      auto requested_peer = telegram_api::move_object_as<telegram_api::requestedPeerUser>(requested_peer_ptr);
-      dialog_id_ = DialogId(UserId(requested_peer->user_id_));
-      first_name_ = std::move(requested_peer->first_name_);
-      last_name_ = std::move(requested_peer->last_name_);
-      username_ = std::move(requested_peer->username_);
-      photo_ = get_photo(td, std::move(requested_peer->photo_), dialog_id_);
-      break;
-    }
-    case telegram_api::requestedPeerChat::ID: {
-      auto requested_peer = telegram_api::move_object_as<telegram_api::requestedPeerChat>(requested_peer_ptr);
-      dialog_id_ = DialogId(ChatId(requested_peer->chat_id_));
-      first_name_ = std::move(requested_peer->title_);
-      photo_ = get_photo(td, std::move(requested_peer->photo_), dialog_id_);
-      break;
-    }
-    case telegram_api::requestedPeerChannel::ID: {
-      auto requested_peer = telegram_api::move_object_as<telegram_api::requestedPeerChannel>(requested_peer_ptr);
-      dialog_id_ = DialogId(ChannelId(requested_peer->channel_id_));
-      first_name_ = std::move(requested_peer->title_);
-      username_ = std::move(requested_peer->username_);
-      photo_ = get_photo(td, std::move(requested_peer->photo_), dialog_id_);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-td_api::object_ptr<td_api::sharedUser> SharedDialog::get_shared_user_object(Td *td) const {
-  CHECK(is_user());
-  auto user_id = td->auth_manager_->is_bot()
-                     ? dialog_id_.get_user_id().get()
-                     : td->user_manager_->get_user_id_object(dialog_id_.get_user_id(), "sharedUser");
-  return td_api::make_object<td_api::sharedUser>(user_id, first_name_, last_name_, username_,
-                                                 get_photo_object(td->file_manager_.get(), photo_));
-}
-
-td_api::object_ptr<td_api::sharedChat> SharedDialog::get_shared_chat_object(Td *td) const {
-  CHECK(is_dialog());
-  auto chat_id = td->auth_manager_->is_bot() ? dialog_id_.get()
-                                             : td->dialog_manager_->get_chat_id_object(dialog_id_, "sharedChat");
-  return td_api::make_object<td_api::sharedChat>(chat_id, first_name_, username_,
-                                                 get_photo_object(td->file_manager_.get(), photo_));
-}
-
-bool operator==(const SharedDialog &lhs, const SharedDialog &rhs) {
-  return lhs.dialog_id_ == rhs.dialog_id_ && lhs.first_name_ == rhs.first_name_ && lhs.last_name_ == rhs.last_name_ &&
-         lhs.username_ == rhs.username_ && lhs.photo_ == rhs.photo_;
-}
-
-bool operator!=(const SharedDialog &lhs, const SharedDialog &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const SharedDialog &shared_dialog) {
-  return string_builder << "shared " << shared_dialog.dialog_id_ << '(' << shared_dialog.first_name_ << ' '
-                        << shared_dialog.last_name_ << ' ' << shared_dialog.username_ << ' ' << shared_dialog.photo_
-                        << ')';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SharedDialog.h b/third-party/td/td/td/telegram/SharedDialog.h
deleted file mode 100644
index 629ca3e582..0000000000
--- a/third-party/td/td/td/telegram/SharedDialog.h
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class SharedDialog {
- public:
-  SharedDialog() = default;
-
-  explicit SharedDialog(DialogId dialog_id) : dialog_id_(dialog_id) {
-  }
-
-  SharedDialog(Td *td, telegram_api::object_ptr<telegram_api::RequestedPeer> &&requested_peer_ptr);
-
-  bool is_valid() const {
-    return dialog_id_.is_valid();
-  }
-
-  bool is_user() const {
-    return dialog_id_.get_type() == DialogType::User;
-  }
-
-  bool is_dialog() const {
-    auto dialog_type = dialog_id_.get_type();
-    return dialog_type == DialogType::Chat || dialog_type == DialogType::Channel;
-  }
-
-  td_api::object_ptr<td_api::sharedUser> get_shared_user_object(Td *td) const;
-
-  td_api::object_ptr<td_api::sharedChat> get_shared_chat_object(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  friend bool operator==(const SharedDialog &lhs, const SharedDialog &rhs);
-  friend bool operator!=(const SharedDialog &lhs, const SharedDialog &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const SharedDialog &shared_dialog);
-
-  DialogId dialog_id_;
-  string first_name_;
-  string last_name_;
-  string username_;
-  Photo photo_;
-};
-
-bool operator==(const SharedDialog &lhs, const SharedDialog &rhs);
-bool operator!=(const SharedDialog &lhs, const SharedDialog &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const SharedDialog &shared_dialog);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SharedDialog.hpp b/third-party/td/td/td/telegram/SharedDialog.hpp
deleted file mode 100644
index 1cdbc6736e..0000000000
--- a/third-party/td/td/td/telegram/SharedDialog.hpp
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/SharedDialog.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void SharedDialog::store(StorerT &storer) const {
-  bool has_first_name = !first_name_.empty();
-  bool has_last_name = !last_name_.empty();
-  bool has_username = !username_.empty();
-  bool has_photo = !photo_.is_empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_first_name);
-  STORE_FLAG(has_last_name);
-  STORE_FLAG(has_username);
-  STORE_FLAG(has_photo);
-  END_STORE_FLAGS();
-  td::store(dialog_id_, storer);
-  if (has_first_name) {
-    td::store(first_name_, storer);
-  }
-  if (has_last_name) {
-    td::store(last_name_, storer);
-  }
-  if (has_username) {
-    td::store(username_, storer);
-  }
-  if (has_photo) {
-    td::store(photo_, storer);
-  }
-}
-
-template <class ParserT>
-void SharedDialog::parse(ParserT &parser) {
-  bool has_first_name;
-  bool has_last_name;
-  bool has_username;
-  bool has_photo;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_first_name);
-  PARSE_FLAG(has_last_name);
-  PARSE_FLAG(has_username);
-  PARSE_FLAG(has_photo);
-  END_PARSE_FLAGS();
-  td::parse(dialog_id_, parser);
-  if (has_first_name) {
-    td::parse(first_name_, parser);
-  }
-  if (has_last_name) {
-    td::parse(last_name_, parser);
-  }
-  if (has_username) {
-    td::parse(username_, parser);
-  }
-  if (has_photo) {
-    td::parse(photo_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SpecialStickerSetType.cpp b/third-party/td/td/td/telegram/SpecialStickerSetType.cpp
deleted file mode 100644
index 1515b079ca..0000000000
--- a/third-party/td/td/td/telegram/SpecialStickerSetType.cpp
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SpecialStickerSetType.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-SpecialStickerSetType SpecialStickerSetType::animated_emoji() {
-  return SpecialStickerSetType("animated_emoji_sticker_set");
-}
-
-SpecialStickerSetType SpecialStickerSetType::animated_emoji_click() {
-  return SpecialStickerSetType("animated_emoji_click_sticker_set");
-}
-
-SpecialStickerSetType SpecialStickerSetType::animated_dice(const string &emoji) {
-  CHECK(!emoji.empty());
-  return SpecialStickerSetType(PSTRING() << "animated_dice_sticker_set#" << emoji);
-}
-
-SpecialStickerSetType SpecialStickerSetType::premium_gifts() {
-  return SpecialStickerSetType("premium_gifts_sticker_set");
-}
-
-SpecialStickerSetType SpecialStickerSetType::generic_animations() {
-  return SpecialStickerSetType("generic_animations_sticker_set");
-}
-
-SpecialStickerSetType SpecialStickerSetType::default_statuses() {
-  return SpecialStickerSetType("default_statuses_sticker_set");
-}
-
-SpecialStickerSetType SpecialStickerSetType::default_channel_statuses() {
-  return SpecialStickerSetType("default_channel_statuses_sticker_set");
-}
-
-SpecialStickerSetType SpecialStickerSetType::default_topic_icons() {
-  return SpecialStickerSetType("default_topic_icons_sticker_set");
-}
-
-SpecialStickerSetType::SpecialStickerSetType(
-    const telegram_api::object_ptr<telegram_api::InputStickerSet> &input_sticker_set) {
-  CHECK(input_sticker_set != nullptr);
-  switch (input_sticker_set->get_id()) {
-    case telegram_api::inputStickerSetAnimatedEmoji::ID:
-      *this = animated_emoji();
-      break;
-    case telegram_api::inputStickerSetAnimatedEmojiAnimations::ID:
-      *this = animated_emoji_click();
-      break;
-    case telegram_api::inputStickerSetDice::ID:
-      *this = animated_dice(static_cast<const telegram_api::inputStickerSetDice *>(input_sticker_set.get())->emoticon_);
-      break;
-    case telegram_api::inputStickerSetPremiumGifts::ID:
-      *this = premium_gifts();
-      break;
-    case telegram_api::inputStickerSetEmojiGenericAnimations::ID:
-      *this = generic_animations();
-      break;
-    case telegram_api::inputStickerSetEmojiDefaultStatuses::ID:
-      *this = default_statuses();
-      break;
-    case telegram_api::inputStickerSetEmojiChannelDefaultStatuses::ID:
-      *this = default_channel_statuses();
-      break;
-    case telegram_api::inputStickerSetEmojiDefaultTopicIcons::ID:
-      *this = default_topic_icons();
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-string SpecialStickerSetType::get_dice_emoji() const {
-  auto prefix = Slice("animated_dice_sticker_set#");
-  if (begins_with(type_, prefix)) {
-    return type_.substr(prefix.size());
-  }
-  return string();
-}
-
-telegram_api::object_ptr<telegram_api::InputStickerSet> SpecialStickerSetType::get_input_sticker_set() const {
-  if (*this == animated_emoji()) {
-    return telegram_api::make_object<telegram_api::inputStickerSetAnimatedEmoji>();
-  }
-  if (*this == animated_emoji_click()) {
-    return telegram_api::make_object<telegram_api::inputStickerSetAnimatedEmojiAnimations>();
-  }
-  if (*this == premium_gifts()) {
-    return telegram_api::make_object<telegram_api::inputStickerSetPremiumGifts>();
-  }
-  if (*this == generic_animations()) {
-    return telegram_api::make_object<telegram_api::inputStickerSetEmojiGenericAnimations>();
-  }
-  if (*this == default_statuses()) {
-    return telegram_api::make_object<telegram_api::inputStickerSetEmojiDefaultStatuses>();
-  }
-  if (*this == default_channel_statuses()) {
-    return telegram_api::make_object<telegram_api::inputStickerSetEmojiChannelDefaultStatuses>();
-  }
-  if (*this == default_topic_icons()) {
-    return telegram_api::make_object<telegram_api::inputStickerSetEmojiDefaultTopicIcons>();
-  }
-  auto emoji = get_dice_emoji();
-  if (!emoji.empty()) {
-    return telegram_api::make_object<telegram_api::inputStickerSetDice>(emoji);
-  }
-
-  UNREACHABLE();
-  return nullptr;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SpecialStickerSetType.h b/third-party/td/td/td/telegram/SpecialStickerSetType.h
deleted file mode 100644
index b35c021889..0000000000
--- a/third-party/td/td/td/telegram/SpecialStickerSetType.h
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-
-namespace td {
-
-class SpecialStickerSetType {
-  explicit SpecialStickerSetType(string type) : type_(type) {
-  }
-
-  friend struct SpecialStickerSetTypeHash;
-
- public:
-  string type_;
-
-  static SpecialStickerSetType animated_emoji();
-
-  static SpecialStickerSetType animated_emoji_click();
-
-  static SpecialStickerSetType animated_dice(const string &emoji);
-
-  static SpecialStickerSetType premium_gifts();
-
-  static SpecialStickerSetType generic_animations();
-
-  static SpecialStickerSetType default_statuses();
-
-  static SpecialStickerSetType default_channel_statuses();
-
-  static SpecialStickerSetType default_topic_icons();
-
-  string get_dice_emoji() const;
-
-  bool is_empty() const {
-    return type_.empty();
-  }
-
-  SpecialStickerSetType() = default;
-
-  explicit SpecialStickerSetType(const telegram_api::object_ptr<telegram_api::InputStickerSet> &input_sticker_set);
-
-  telegram_api::object_ptr<telegram_api::InputStickerSet> get_input_sticker_set() const;
-};
-
-inline bool operator==(const SpecialStickerSetType &lhs, const SpecialStickerSetType &rhs) {
-  return lhs.type_ == rhs.type_;
-}
-
-inline bool operator!=(const SpecialStickerSetType &lhs, const SpecialStickerSetType &rhs) {
-  return !(lhs == rhs);
-}
-
-struct SpecialStickerSetTypeHash {
-  uint32 operator()(SpecialStickerSetType type) const {
-    return Hash<string>()(type.type_);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SponsoredMessageManager.cpp b/third-party/td/td/td/telegram/SponsoredMessageManager.cpp
deleted file mode 100644
index 9010e2600e..0000000000
--- a/third-party/td/td/td/telegram/SponsoredMessageManager.cpp
+++ /dev/null
@@ -1,690 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SponsoredMessageManager.h"
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageContent.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageSelfDestructType.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/PeerColor.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class GetSponsoredMessagesQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_SponsoredMessages>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetSponsoredMessagesQuery(
-      Promise<telegram_api::object_ptr<telegram_api::messages_SponsoredMessages>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::messages_getSponsoredMessages(std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getSponsoredMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetSponsoredMessagesQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetSponsoredMessagesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ViewSponsoredMessageQuery final : public Td::ResultHandler {
- public:
-  void send(const string &message_id) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_viewSponsoredMessage(BufferSlice(message_id))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_viewSponsoredMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-  }
-
-  void on_error(Status status) final {
-  }
-};
-
-class ClickSponsoredMessageQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ClickSponsoredMessageQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &message_id, bool is_media_click, bool from_fullscreen) {
-    int32 flags = 0;
-    if (is_media_click) {
-      flags |= telegram_api::messages_clickSponsoredMessage::MEDIA_MASK;
-    }
-    if (from_fullscreen) {
-      flags |= telegram_api::messages_clickSponsoredMessage::FULLSCREEN_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_clickSponsoredMessage(
-        flags, false /*ignored*/, false /*ignored*/, BufferSlice(message_id))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_clickSponsoredMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReportSponsoredMessageQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::ReportSponsoredResult>> promise_;
-
- public:
-  explicit ReportSponsoredMessageQuery(Promise<td_api::object_ptr<td_api::ReportSponsoredResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &message_id, const string &option_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_reportSponsoredMessage(BufferSlice(message_id), BufferSlice(option_id))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_reportSponsoredMessage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ReportSponsoredMessageQuery: " << to_string(ptr);
-    switch (ptr->get_id()) {
-      case telegram_api::channels_sponsoredMessageReportResultReported::ID:
-        return promise_.set_value(td_api::make_object<td_api::reportSponsoredResultOk>());
-      case telegram_api::channels_sponsoredMessageReportResultAdsHidden::ID:
-        return promise_.set_value(td_api::make_object<td_api::reportSponsoredResultAdsHidden>());
-      case telegram_api::channels_sponsoredMessageReportResultChooseOption::ID: {
-        auto options =
-            telegram_api::move_object_as<telegram_api::channels_sponsoredMessageReportResultChooseOption>(ptr);
-        if (options->options_.empty()) {
-          return promise_.set_value(td_api::make_object<td_api::reportSponsoredResultFailed>());
-        }
-        vector<td_api::object_ptr<td_api::reportOption>> report_options;
-        for (auto &option : options->options_) {
-          report_options.push_back(
-              td_api::make_object<td_api::reportOption>(option->option_.as_slice().str(), option->text_));
-        }
-        return promise_.set_value(td_api::make_object<td_api::reportSponsoredResultOptionRequired>(
-            options->title_, std::move(report_options)));
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "AD_EXPIRED") {
-      return promise_.set_value(td_api::make_object<td_api::reportSponsoredResultFailed>());
-    }
-    if (status.message() == "PREMIUM_ACCOUNT_REQUIRED") {
-      return promise_.set_value(td_api::make_object<td_api::reportSponsoredResultPremiumRequired>());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSponsoredPeersQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::contacts_SponsoredPeers>> promise_;
-
- public:
-  explicit GetSponsoredPeersQuery(Promise<telegram_api::object_ptr<telegram_api::contacts_SponsoredPeers>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &query) {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_getSponsoredPeers(query)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_getSponsoredPeers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetSponsoredPeersQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-struct SponsoredMessageManager::SponsoredContentInfo {
-  string random_id_;
-  bool is_viewed_ = false;
-  bool is_clicked_ = false;
-};
-
-struct SponsoredMessageManager::SponsoredMessage {
-  int64 local_id = 0;
-  bool is_recommended = false;
-  bool can_be_reported = false;
-  unique_ptr<MessageContent> content;
-  string url;
-  Photo photo;
-  string title;
-  string button_text;
-  PeerColor peer_color;
-  string sponsor_info;
-  string additional_info;
-
-  SponsoredMessage(int64 local_id, bool is_recommended, bool can_be_reported, unique_ptr<MessageContent> content,
-                   string url, Photo photo, string title, string button_text, PeerColor peer_color, string sponsor_info,
-                   string additional_info)
-      : local_id(local_id)
-      , is_recommended(is_recommended)
-      , can_be_reported(can_be_reported)
-      , content(std::move(content))
-      , url(std::move(url))
-      , photo(std::move(photo))
-      , title(std::move(title))
-      , button_text(std::move(button_text))
-      , peer_color(std::move(peer_color))
-      , sponsor_info(std::move(sponsor_info))
-      , additional_info(std::move(additional_info)) {
-  }
-};
-
-struct SponsoredMessageManager::DialogSponsoredMessages {
-  vector<Promise<td_api::object_ptr<td_api::sponsoredMessages>>> promises;
-  vector<SponsoredMessage> messages;
-  FlatHashMap<int64, SponsoredContentInfo> message_infos;
-  int32 messages_between = 0;
-  bool is_premium = false;
-  bool sponsored_enabled = false;
-};
-
-struct SponsoredMessageManager::SponsoredDialog {
-  int64 local_id = 0;
-  DialogId dialog_id;
-  string sponsor_info;
-  string additional_info;
-
-  SponsoredDialog(int64 local_id, DialogId dialog_id, string &&sponsor_info, string &&additional_info)
-      : local_id(local_id)
-      , dialog_id(dialog_id)
-      , sponsor_info(std::move(sponsor_info))
-      , additional_info(std::move(additional_info)) {
-  }
-};
-
-struct SponsoredMessageManager::SponsoredDialogs {
-  int64 local_id = 0;
-  vector<Promise<td_api::object_ptr<td_api::sponsoredChats>>> promises;
-  vector<SponsoredDialog> dialogs;
-  bool is_premium = false;
-  bool sponsored_enabled = false;
-};
-
-SponsoredMessageManager::SponsoredMessageManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  delete_cached_sponsored_messages_timeout_.set_callback(on_delete_cached_sponsored_messages_timeout_callback);
-  delete_cached_sponsored_messages_timeout_.set_callback_data(static_cast<void *>(this));
-
-  delete_cached_sponsored_dialogs_timeout_.set_callback(on_delete_cached_sponsored_dialogs_timeout_callback);
-  delete_cached_sponsored_dialogs_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-SponsoredMessageManager::~SponsoredMessageManager() = default;
-
-void SponsoredMessageManager::tear_down() {
-  parent_.reset();
-}
-
-void SponsoredMessageManager::on_delete_cached_sponsored_messages_timeout_callback(void *sponsored_message_manager_ptr,
-                                                                                   int64 dialog_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto sponsored_message_manager = static_cast<SponsoredMessageManager *>(sponsored_message_manager_ptr);
-  send_closure_later(sponsored_message_manager->actor_id(sponsored_message_manager),
-                     &SponsoredMessageManager::delete_cached_sponsored_messages, DialogId(dialog_id_int));
-}
-
-void SponsoredMessageManager::delete_cached_sponsored_messages(DialogId dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto it = dialog_sponsored_messages_.find(dialog_id);
-  if (it != dialog_sponsored_messages_.end() && it->second->promises.empty()) {
-    dialog_sponsored_messages_.erase(it);
-  }
-}
-
-void SponsoredMessageManager::on_delete_cached_sponsored_dialogs_timeout_callback(void *sponsored_message_manager_ptr,
-                                                                                  int64 local_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto sponsored_message_manager = static_cast<SponsoredMessageManager *>(sponsored_message_manager_ptr);
-  send_closure_later(sponsored_message_manager->actor_id(sponsored_message_manager),
-                     &SponsoredMessageManager::delete_cached_sponsored_dialogs, local_id);
-}
-
-void SponsoredMessageManager::delete_cached_sponsored_dialogs(int64 local_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto query_it = local_id_to_search_query_.find(local_id);
-  if (query_it == local_id_to_search_query_.end()) {
-    return;
-  }
-
-  auto it = search_sponsored_dialogs_.find(query_it->second);
-  CHECK(it != search_sponsored_dialogs_.end());
-  if (it->second->promises.empty()) {
-    for (auto &dialog : it->second->dialogs) {
-      dialog_infos_.erase(dialog.local_id);
-    }
-    search_sponsored_dialogs_.erase(it);
-    local_id_to_search_query_.erase(query_it);
-  }
-}
-
-td_api::object_ptr<td_api::messageSponsor> SponsoredMessageManager::get_message_sponsor_object(
-    const SponsoredMessage &sponsored_message) const {
-  return td_api::make_object<td_api::messageSponsor>(
-      sponsored_message.url, get_photo_object(td_->file_manager_.get(), sponsored_message.photo),
-      sponsored_message.sponsor_info);
-}
-
-td_api::object_ptr<td_api::sponsoredMessage> SponsoredMessageManager::get_sponsored_message_object(
-    DialogId dialog_id, const SponsoredMessage &sponsored_message) const {
-  auto sponsor = get_message_sponsor_object(sponsored_message);
-  if (sponsor == nullptr) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::sponsoredMessage>(
-      sponsored_message.local_id, sponsored_message.is_recommended, sponsored_message.can_be_reported,
-      get_message_content_object(sponsored_message.content.get(), td_, dialog_id, MessageId(ServerMessageId(1)), false,
-                                 dialog_id, 0, false, true, -1, false, true),
-      std::move(sponsor), sponsored_message.title, sponsored_message.button_text,
-      td_->theme_manager_->get_accent_color_id_object(sponsored_message.peer_color.accent_color_id_, AccentColorId()),
-      sponsored_message.peer_color.background_custom_emoji_id_.get(), sponsored_message.additional_info);
-}
-
-td_api::object_ptr<td_api::sponsoredMessages> SponsoredMessageManager::get_sponsored_messages_object(
-    DialogId dialog_id, const DialogSponsoredMessages &sponsored_messages) const {
-  auto messages = transform(sponsored_messages.messages, [this, dialog_id](const SponsoredMessage &message) {
-    return get_sponsored_message_object(dialog_id, message);
-  });
-  td::remove_if(messages, [](const auto &message) { return message == nullptr; });
-  return td_api::make_object<td_api::sponsoredMessages>(std::move(messages), sponsored_messages.messages_between);
-}
-
-td_api::object_ptr<td_api::sponsoredChat> SponsoredMessageManager::get_sponsored_chat_object(
-    const SponsoredDialog &sponsored_dialog) const {
-  return td_api::make_object<td_api::sponsoredChat>(
-      sponsored_dialog.local_id, td_->dialog_manager_->get_chat_id_object(sponsored_dialog.dialog_id, "sponsoredChat"),
-      sponsored_dialog.sponsor_info, sponsored_dialog.additional_info);
-}
-
-td_api::object_ptr<td_api::sponsoredChats> SponsoredMessageManager::get_sponsored_chats_object(
-    const SponsoredDialogs &sponsored_dialogs) const {
-  return td_api::make_object<td_api::sponsoredChats>(transform(
-      sponsored_dialogs.dialogs, [this](const SponsoredDialog &dialog) { return get_sponsored_chat_object(dialog); }));
-}
-
-void SponsoredMessageManager::get_dialog_sponsored_messages(
-    DialogId dialog_id, Promise<td_api::object_ptr<td_api::sponsoredMessages>> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "get_dialog_sponsored_messages"));
-
-  auto &messages = dialog_sponsored_messages_[dialog_id];
-  if (messages != nullptr && messages->promises.empty()) {
-    if (messages->is_premium == td_->option_manager_->get_option_boolean("is_premium", false) &&
-        messages->sponsored_enabled == td_->user_manager_->get_my_sponsored_enabled()) {
-      // use cached value
-      return promise.set_value(get_sponsored_messages_object(dialog_id, *messages));
-    } else {
-      // drop cache
-      messages = nullptr;
-      delete_cached_sponsored_messages_timeout_.cancel_timeout(dialog_id.get());
-    }
-  }
-
-  if (messages == nullptr) {
-    messages = make_unique<DialogSponsoredMessages>();
-  }
-  messages->promises.push_back(std::move(promise));
-  if (messages->promises.size() == 1) {
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this),
-         dialog_id](Result<telegram_api::object_ptr<telegram_api::messages_SponsoredMessages>> &&result) {
-          send_closure(actor_id, &SponsoredMessageManager::on_get_dialog_sponsored_messages, dialog_id,
-                       std::move(result));
-        });
-    td_->create_handler<GetSponsoredMessagesQuery>(std::move(query_promise))->send(dialog_id);
-  }
-}
-
-void SponsoredMessageManager::on_get_dialog_sponsored_messages(
-    DialogId dialog_id, Result<telegram_api::object_ptr<telegram_api::messages_SponsoredMessages>> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto &messages = dialog_sponsored_messages_[dialog_id];
-  CHECK(messages != nullptr);
-  auto promises = std::move(messages->promises);
-  reset_to_empty(messages->promises);
-  CHECK(messages->messages.empty());
-  CHECK(messages->message_infos.empty());
-
-  if (result.is_error()) {
-    dialog_sponsored_messages_.erase(dialog_id);
-    fail_promises(promises, result.move_as_error());
-    return;
-  }
-
-  auto sponsored_messages_ptr = result.move_as_ok();
-  switch (sponsored_messages_ptr->get_id()) {
-    case telegram_api::messages_sponsoredMessages::ID: {
-      auto sponsored_messages =
-          telegram_api::move_object_as<telegram_api::messages_sponsoredMessages>(sponsored_messages_ptr);
-
-      td_->user_manager_->on_get_users(std::move(sponsored_messages->users_), "on_get_dialog_sponsored_messages");
-      td_->chat_manager_->on_get_chats(std::move(sponsored_messages->chats_), "on_get_dialog_sponsored_messages");
-
-      for (auto &sponsored_message : sponsored_messages->messages_) {
-        Photo photo = get_photo(td_, std::move(sponsored_message->photo_), DialogId());
-        auto message_text = get_message_text(td_->user_manager_.get(), std::move(sponsored_message->message_),
-                                             std::move(sponsored_message->entities_), true, true, 0, false,
-                                             "on_get_dialog_sponsored_messages");
-        MessageSelfDestructType ttl;
-        auto content =
-            get_message_content(td_, std::move(message_text), std::move(sponsored_message->media_), DialogId(),
-                                G()->unix_time(), true, UserId(), &ttl, nullptr, "on_get_dialog_sponsored_messages");
-        if (!ttl.is_empty()) {
-          LOG(ERROR) << "Receive sponsored message with " << ttl;
-          continue;
-        }
-        bool is_allowed_content_type = [&] {
-          switch (content->get_type()) {
-            case MessageContentType::Animation:
-            case MessageContentType::Photo:
-            case MessageContentType::Text:
-            case MessageContentType::Video:
-              return true;
-            default:
-              return false;
-          }
-        }();
-        if (!is_allowed_content_type) {
-          LOG(ERROR) << "Receive sponsored message with " << content->get_type();
-          continue;
-        }
-
-        current_sponsored_message_id_ = current_sponsored_message_id_.get_next_message_id(MessageType::Local);
-        if (!current_sponsored_message_id_.is_valid_sponsored()) {
-          LOG(ERROR) << "Sponsored message identifier overflowed";
-          current_sponsored_message_id_ = MessageId::max().get_next_message_id(MessageType::Local);
-          CHECK(current_sponsored_message_id_.is_valid_sponsored());
-        }
-        auto local_id = current_sponsored_message_id_.get();
-        CHECK(!current_sponsored_message_id_.is_valid());
-        CHECK(!current_sponsored_message_id_.is_scheduled());
-        SponsoredContentInfo message_info;
-        message_info.random_id_ = sponsored_message->random_id_.as_slice().str();
-        auto is_inserted = messages->message_infos.emplace(local_id, std::move(message_info)).second;
-        CHECK(is_inserted);
-        messages->messages.emplace_back(
-            local_id, sponsored_message->recommended_, sponsored_message->can_report_, std::move(content),
-            std::move(sponsored_message->url_), std::move(photo), std::move(sponsored_message->title_),
-            std::move(sponsored_message->button_text_), PeerColor(sponsored_message->color_),
-            std::move(sponsored_message->sponsor_info_), std::move(sponsored_message->additional_info_));
-      }
-      messages->messages_between = sponsored_messages->posts_between_;
-      break;
-    }
-    case telegram_api::messages_sponsoredMessagesEmpty::ID:
-      break;
-    default:
-      UNREACHABLE();
-  }
-  messages->is_premium = td_->option_manager_->get_option_boolean("is_premium", false);
-  messages->sponsored_enabled = td_->user_manager_->get_my_sponsored_enabled();
-
-  for (auto &promise : promises) {
-    promise.set_value(get_sponsored_messages_object(dialog_id, *messages));
-  }
-  delete_cached_sponsored_messages_timeout_.set_timeout_in(dialog_id.get(), 300.0);
-}
-
-void SponsoredMessageManager::view_sponsored_message(DialogId dialog_id, MessageId sponsored_message_id) {
-  auto it = dialog_sponsored_messages_.find(dialog_id);
-  if (it == dialog_sponsored_messages_.end()) {
-    return;
-  }
-  auto random_id_it = it->second->message_infos.find(sponsored_message_id.get());
-  if (random_id_it == it->second->message_infos.end() || random_id_it->second.is_viewed_) {
-    return;
-  }
-
-  random_id_it->second.is_viewed_ = true;
-  td_->create_handler<ViewSponsoredMessageQuery>()->send(random_id_it->second.random_id_);
-}
-
-void SponsoredMessageManager::click_sponsored_message(DialogId dialog_id, MessageId sponsored_message_id,
-                                                      bool is_media_click, bool from_fullscreen,
-                                                      Promise<Unit> &&promise) {
-  if (!dialog_id.is_valid() || !sponsored_message_id.is_valid_sponsored()) {
-    return promise.set_error(Status::Error(400, "Invalid message specified"));
-  }
-  auto it = dialog_sponsored_messages_.find(dialog_id);
-  if (it == dialog_sponsored_messages_.end()) {
-    return promise.set_value(Unit());
-  }
-  auto random_id_it = it->second->message_infos.find(sponsored_message_id.get());
-  if (random_id_it == it->second->message_infos.end() || random_id_it->second.is_clicked_) {
-    return promise.set_value(Unit());
-  }
-
-  random_id_it->second.is_clicked_ = true;
-  td_->create_handler<ClickSponsoredMessageQuery>(std::move(promise))
-      ->send(random_id_it->second.random_id_, is_media_click, from_fullscreen);
-}
-
-void SponsoredMessageManager::report_sponsored_message(
-    DialogId dialog_id, MessageId sponsored_message_id, const string &option_id,
-    Promise<td_api::object_ptr<td_api::ReportSponsoredResult>> &&promise) {
-  if (!dialog_id.is_valid() || !sponsored_message_id.is_valid_sponsored()) {
-    return promise.set_error(Status::Error(400, "Invalid message specified"));
-  }
-  auto it = dialog_sponsored_messages_.find(dialog_id);
-  if (it == dialog_sponsored_messages_.end()) {
-    return promise.set_value(td_api::make_object<td_api::reportSponsoredResultFailed>());
-  }
-  auto random_id_it = it->second->message_infos.find(sponsored_message_id.get());
-  if (random_id_it == it->second->message_infos.end()) {
-    return promise.set_value(td_api::make_object<td_api::reportSponsoredResultFailed>());
-  }
-
-  td_->create_handler<ReportSponsoredMessageQuery>(std::move(promise))
-      ->send(random_id_it->second.random_id_, option_id);
-}
-
-void SponsoredMessageManager::get_search_sponsored_dialogs(
-    const string &query, Promise<td_api::object_ptr<td_api::sponsoredChats>> &&promise) {
-  if (query.size() < 4u) {
-    return promise.set_value(td_api::make_object<td_api::sponsoredChats>());
-  }
-  auto &dialogs = search_sponsored_dialogs_[query];
-  if (dialogs != nullptr && dialogs->promises.empty()) {
-    if (dialogs->is_premium == td_->option_manager_->get_option_boolean("is_premium", false) &&
-        dialogs->sponsored_enabled == td_->user_manager_->get_my_sponsored_enabled()) {
-      // use cached value
-      return promise.set_value(get_sponsored_chats_object(*dialogs));
-    } else {
-      // drop cache
-      delete_cached_sponsored_dialogs_timeout_.cancel_timeout(dialogs->local_id);
-      local_id_to_search_query_.erase(dialogs->local_id);
-      for (auto &dialog : dialogs->dialogs) {
-        dialog_infos_.erase(dialog.local_id);
-      }
-      dialogs = nullptr;
-    }
-  }
-
-  if (dialogs == nullptr) {
-    dialogs = make_unique<SponsoredDialogs>();
-    dialogs->local_id = ++current_local_id_;
-    local_id_to_search_query_[dialogs->local_id] = query;
-  }
-  dialogs->promises.push_back(std::move(promise));
-  if (dialogs->promises.size() == 1) {
-    auto query_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), query](
-                                   Result<telegram_api::object_ptr<telegram_api::contacts_SponsoredPeers>> &&result) {
-          send_closure(actor_id, &SponsoredMessageManager::on_get_search_sponsored_dialogs, query, std::move(result));
-        });
-    td_->create_handler<GetSponsoredPeersQuery>(std::move(query_promise))->send(query);
-  }
-}
-
-void SponsoredMessageManager::on_get_search_sponsored_dialogs(
-    const string &query, Result<telegram_api::object_ptr<telegram_api::contacts_SponsoredPeers>> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto &dialogs = search_sponsored_dialogs_[query];
-  CHECK(dialogs != nullptr);
-  auto promises = std::move(dialogs->promises);
-  reset_to_empty(dialogs->promises);
-  CHECK(dialogs->dialogs.empty());
-
-  auto local_id = dialogs->local_id;
-  if (result.is_error()) {
-    search_sponsored_dialogs_.erase(query);
-    local_id_to_search_query_.erase(local_id);
-    fail_promises(promises, result.move_as_error());
-    return;
-  }
-
-  auto sponsored_dialogs_ptr = result.move_as_ok();
-  switch (sponsored_dialogs_ptr->get_id()) {
-    case telegram_api::contacts_sponsoredPeers::ID: {
-      auto sponsored_dialogs =
-          telegram_api::move_object_as<telegram_api::contacts_sponsoredPeers>(sponsored_dialogs_ptr);
-
-      td_->user_manager_->on_get_users(std::move(sponsored_dialogs->users_), "on_get_search_sponsored_dialogs");
-      td_->chat_manager_->on_get_chats(std::move(sponsored_dialogs->chats_), "on_get_search_sponsored_dialogs");
-
-      for (auto &sponsored_dialog : sponsored_dialogs->peers_) {
-        auto dialog_id = DialogId(sponsored_dialog->peer_);
-        if (!dialog_id.is_valid() || !td_->dialog_manager_->have_dialog_info(dialog_id)) {
-          LOG(ERROR) << "Receive unknown " << dialog_id;
-          continue;
-        }
-        td_->dialog_manager_->force_create_dialog(dialog_id, "on_get_search_sponsored_dialogs");
-
-        auto dialog_local_id = ++current_local_id_;
-
-        auto dialog_info = make_unique<SponsoredContentInfo>();
-        dialog_info->random_id_ = sponsored_dialog->random_id_.as_slice().str();
-        auto is_inserted = dialog_infos_.emplace(dialog_local_id, std::move(dialog_info)).second;
-        CHECK(is_inserted);
-
-        dialogs->dialogs.emplace_back(dialog_local_id, dialog_id, std::move(sponsored_dialog->sponsor_info_),
-                                      std::move(sponsored_dialog->additional_info_));
-      }
-      break;
-    }
-    case telegram_api::contacts_sponsoredPeersEmpty::ID:
-      break;
-    default:
-      UNREACHABLE();
-  }
-  dialogs->is_premium = td_->option_manager_->get_option_boolean("is_premium", false);
-  dialogs->sponsored_enabled = td_->user_manager_->get_my_sponsored_enabled();
-
-  for (auto &promise : promises) {
-    promise.set_value(get_sponsored_chats_object(*dialogs));
-  }
-  delete_cached_sponsored_dialogs_timeout_.set_timeout_in(local_id, 300.0);
-}
-
-void SponsoredMessageManager::view_sponsored_dialog(int64 local_id, Promise<Unit> &&promise) {
-  promise.set_value(Unit());
-
-  auto it = dialog_infos_.find(local_id);
-  if (it == dialog_infos_.end() || it->second->is_viewed_) {
-    return;
-  }
-
-  it->second->is_viewed_ = true;
-  td_->create_handler<ViewSponsoredMessageQuery>()->send(it->second->random_id_);
-}
-
-void SponsoredMessageManager::open_sponsored_dialog(int64 local_id, Promise<Unit> &&promise) {
-  auto it = dialog_infos_.find(local_id);
-  if (it == dialog_infos_.end() || it->second->is_clicked_) {
-    return promise.set_value(Unit());
-  }
-
-  it->second->is_clicked_ = true;
-  td_->create_handler<ClickSponsoredMessageQuery>(std::move(promise))->send(it->second->random_id_, false, false);
-}
-
-void SponsoredMessageManager::report_sponsored_dialog(
-    int64 local_id, const string &option_id, Promise<td_api::object_ptr<td_api::ReportSponsoredResult>> &&promise) {
-  auto it = dialog_infos_.find(local_id);
-  if (it == dialog_infos_.end()) {
-    return promise.set_value(td_api::make_object<td_api::reportSponsoredResultFailed>());
-  }
-
-  td_->create_handler<ReportSponsoredMessageQuery>(std::move(promise))->send(it->second->random_id_, option_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SponsoredMessageManager.h b/third-party/td/td/td/telegram/SponsoredMessageManager.h
deleted file mode 100644
index cfee977aad..0000000000
--- a/third-party/td/td/td/telegram/SponsoredMessageManager.h
+++ /dev/null
@@ -1,111 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class SponsoredMessageManager final : public Actor {
- public:
-  SponsoredMessageManager(Td *td, ActorShared<> parent);
-  SponsoredMessageManager(const SponsoredMessageManager &) = delete;
-  SponsoredMessageManager &operator=(const SponsoredMessageManager &) = delete;
-  SponsoredMessageManager(SponsoredMessageManager &&) = delete;
-  SponsoredMessageManager &operator=(SponsoredMessageManager &&) = delete;
-  ~SponsoredMessageManager() final;
-
-  void get_dialog_sponsored_messages(DialogId dialog_id,
-                                     Promise<td_api::object_ptr<td_api::sponsoredMessages>> &&promise);
-
-  void view_sponsored_message(DialogId dialog_id, MessageId sponsored_message_id);
-
-  void click_sponsored_message(DialogId dialog_id, MessageId sponsored_message_id, bool is_media_click,
-                               bool from_fullscreen, Promise<Unit> &&promise);
-
-  void report_sponsored_message(DialogId dialog_id, MessageId sponsored_message_id, const string &option_id,
-                                Promise<td_api::object_ptr<td_api::ReportSponsoredResult>> &&promise);
-
-  void get_search_sponsored_dialogs(const string &query, Promise<td_api::object_ptr<td_api::sponsoredChats>> &&promise);
-
-  void view_sponsored_dialog(int64 local_id, Promise<Unit> &&promise);
-
-  void open_sponsored_dialog(int64 local_id, Promise<Unit> &&promise);
-
-  void report_sponsored_dialog(int64 local_id, const string &option_id,
-                               Promise<td_api::object_ptr<td_api::ReportSponsoredResult>> &&promise);
-
- private:
-  struct SponsoredContentInfo;
-  struct SponsoredMessage;
-  struct DialogSponsoredMessages;
-  struct SponsoredDialog;
-  struct SponsoredDialogs;
-
-  void tear_down() final;
-
-  static void on_delete_cached_sponsored_messages_timeout_callback(void *sponsored_message_manager_ptr,
-                                                                   int64 dialog_id_int);
-
-  static void on_delete_cached_sponsored_dialogs_timeout_callback(void *sponsored_message_manager_ptr, int64 local_id);
-
-  void delete_cached_sponsored_messages(DialogId dialog_id);
-
-  void delete_cached_sponsored_dialogs(int64 local_id);
-
-  td_api::object_ptr<td_api::messageSponsor> get_message_sponsor_object(
-      const SponsoredMessage &sponsored_message) const;
-
-  td_api::object_ptr<td_api::sponsoredMessage> get_sponsored_message_object(
-      DialogId dialog_id, const SponsoredMessage &sponsored_message) const;
-
-  td_api::object_ptr<td_api::sponsoredMessages> get_sponsored_messages_object(
-      DialogId dialog_id, const DialogSponsoredMessages &sponsored_messages) const;
-
-  td_api::object_ptr<td_api::sponsoredChat> get_sponsored_chat_object(const SponsoredDialog &sponsored_dialog) const;
-
-  td_api::object_ptr<td_api::sponsoredChats> get_sponsored_chats_object(
-      const SponsoredDialogs &sponsored_dialogs) const;
-
-  void on_get_dialog_sponsored_messages(
-      DialogId dialog_id, Result<telegram_api::object_ptr<telegram_api::messages_SponsoredMessages>> &&result);
-
-  void on_get_search_sponsored_dialogs(
-      const string &query, Result<telegram_api::object_ptr<telegram_api::contacts_SponsoredPeers>> &&result);
-
-  FlatHashMap<DialogId, unique_ptr<DialogSponsoredMessages>, DialogIdHash> dialog_sponsored_messages_;
-
-  FlatHashMap<string, unique_ptr<SponsoredDialogs>> search_sponsored_dialogs_;
-  FlatHashMap<int64, string> local_id_to_search_query_;
-  FlatHashMap<int64, unique_ptr<SponsoredContentInfo>> dialog_infos_;
-
-  MessageId current_sponsored_message_id_ = MessageId::max();
-
-  int64 current_local_id_ = 0;
-
-  MultiTimeout delete_cached_sponsored_messages_timeout_{"DeleteCachedSponsoredMessagesTimeout"};
-
-  MultiTimeout delete_cached_sponsored_dialogs_timeout_{"DeleteCachedSponsoredDialogsTimeout"};
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarAmount.cpp b/third-party/td/td/td/telegram/StarAmount.cpp
deleted file mode 100644
index df36d12e8b..0000000000
--- a/third-party/td/td/td/telegram/StarAmount.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarAmount.h"
-
-#include "td/telegram/StarManager.h"
-
-#include "td/utils/misc.h"
-
-namespace td {
-
-StarAmount::StarAmount(telegram_api::object_ptr<telegram_api::starsAmount> &&amount, bool allow_negative) {
-  if (amount != nullptr) {
-    star_count_ = StarManager::get_star_count(amount->amount_, allow_negative);
-    nanostar_count_ = StarManager::get_nanostar_count(star_count_, amount->nanos_);
-  }
-}
-
-td_api::object_ptr<td_api::starAmount> StarAmount::get_star_amount_object() const {
-  return td_api::make_object<td_api::starAmount>(star_count_, nanostar_count_);
-}
-
-bool operator==(const StarAmount &lhs, const StarAmount &rhs) {
-  return lhs.star_count_ == rhs.star_count_ && lhs.nanostar_count_ == rhs.nanostar_count_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarAmount &star_amount) {
-  auto star_count = star_amount.get_star_count();
-  auto nanostar_count = star_amount.get_nanostar_count();
-  if (star_count < 0 || nanostar_count < 0) {
-    string_builder << '-';
-    star_count *= -1;
-    nanostar_count *= -1;
-  }
-  string_builder << star_count;
-  if (nanostar_count != 0) {
-    auto nanostar_str = lpad0(to_string(nanostar_count), 9);
-    while (!nanostar_str.empty() && nanostar_str.back() == '0') {
-      nanostar_str.pop_back();
-    }
-    string_builder << '.' << nanostar_str;
-  }
-  return string_builder << " Telegram Stars";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarAmount.h b/third-party/td/td/td/telegram/StarAmount.h
deleted file mode 100644
index b03aa79eb6..0000000000
--- a/third-party/td/td/td/telegram/StarAmount.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class StarAmount {
-  int64 star_count_ = 0;
-  int32 nanostar_count_ = 0;
-
-  friend bool operator==(const StarAmount &lhs, const StarAmount &rhs);
-
- public:
-  StarAmount() = default;
-
-  StarAmount(telegram_api::object_ptr<telegram_api::starsAmount> &&amount, bool allow_negative);
-
-  int64 get_star_count() const {
-    return star_count_;
-  }
-
-  int32 get_nanostar_count() const {
-    return nanostar_count_;
-  }
-
-  bool is_positive() const {
-    return star_count_ > 0 || nanostar_count_ > 0;
-  }
-
-  td_api::object_ptr<td_api::starAmount> get_star_amount_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StarAmount &lhs, const StarAmount &rhs);
-
-inline bool operator!=(const StarAmount &lhs, const StarAmount &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarAmount &star_amount);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarAmount.hpp b/third-party/td/td/td/telegram/StarAmount.hpp
deleted file mode 100644
index 0bee25fdd2..0000000000
--- a/third-party/td/td/td/telegram/StarAmount.hpp
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StarAmount.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StarAmount::store(StorerT &storer) const {
-  td::store(star_count_, storer);
-  td::store(nanostar_count_, storer);
-}
-
-template <class ParserT>
-void StarAmount::parse(ParserT &parser) {
-  td::parse(star_count_, parser);
-  td::parse(nanostar_count_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGift.cpp b/third-party/td/td/td/telegram/StarGift.cpp
deleted file mode 100644
index 3cba6f2222..0000000000
--- a/third-party/td/td/td/telegram/StarGift.cpp
+++ /dev/null
@@ -1,185 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarGift.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-StarGift::StarGift(Td *td, telegram_api::object_ptr<telegram_api::StarGift> &&star_gift_ptr, bool allow_unique_gift) {
-  CHECK(star_gift_ptr != nullptr);
-  auto constructor_id = star_gift_ptr->get_id();
-  if (allow_unique_gift && constructor_id == telegram_api::starGiftUnique::ID) {
-    auto star_gift = telegram_api::move_object_as<telegram_api::starGiftUnique>(star_gift_ptr);
-    if (star_gift->id_ == 0) {
-      LOG(ERROR) << "Receive " << to_string(star_gift);
-      return;
-    }
-    is_unique_ = true;
-    id_ = star_gift->id_;
-    title_ = std::move(star_gift->title_);
-    slug_ = std::move(star_gift->slug_);
-    num_ = star_gift->num_;
-    if (star_gift->owner_id_ != nullptr) {
-      owner_dialog_id_ = DialogId(star_gift->owner_id_);
-    }
-    owner_name_ = std::move(star_gift->owner_name_);
-    owner_address_ = std::move(star_gift->owner_address_);
-    gift_address_ = std::move(star_gift->gift_address_);
-    unique_availability_issued_ = star_gift->availability_issued_;
-    unique_availability_total_ = star_gift->availability_total_;
-    for (auto &attribute : star_gift->attributes_) {
-      switch (attribute->get_id()) {
-        case telegram_api::starGiftAttributeModel::ID:
-          if (model_.is_valid()) {
-            LOG(ERROR) << "Receive duplicate model for " << *this;
-          }
-          model_ = StarGiftAttributeSticker(
-              td, telegram_api::move_object_as<telegram_api::starGiftAttributeModel>(attribute));
-          if (!model_.is_valid()) {
-            LOG(ERROR) << "Receive invalid model for " << *this;
-          }
-          break;
-        case telegram_api::starGiftAttributePattern::ID:
-          if (pattern_.is_valid()) {
-            LOG(ERROR) << "Receive duplicate symbol for " << *this;
-          }
-          pattern_ = StarGiftAttributeSticker(
-              td, telegram_api::move_object_as<telegram_api::starGiftAttributePattern>(attribute));
-          if (!pattern_.is_valid()) {
-            LOG(ERROR) << "Receive invalid symbol for " << *this;
-          }
-          break;
-        case telegram_api::starGiftAttributeBackdrop::ID:
-          if (backdrop_.is_valid()) {
-            LOG(ERROR) << "Receive duplicate backdrop for " << *this;
-          }
-          backdrop_ = StarGiftAttributeBackdrop(
-              telegram_api::move_object_as<telegram_api::starGiftAttributeBackdrop>(attribute));
-          if (!backdrop_.is_valid()) {
-            LOG(ERROR) << "Receive invalid backdrop for " << *this;
-          }
-          break;
-        case telegram_api::starGiftAttributeOriginalDetails::ID:
-          if (original_details_.is_valid()) {
-            LOG(ERROR) << "Receive duplicate original details for " << *this;
-          }
-          original_details_ = StarGiftAttributeOriginalDetails(
-              td, telegram_api::move_object_as<telegram_api::starGiftAttributeOriginalDetails>(attribute));
-          if (!original_details_.is_valid()) {
-            LOG(ERROR) << "Receive invalid original details for " << *this;
-          }
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-    return;
-  }
-  if (constructor_id != telegram_api::starGift::ID) {
-    LOG(ERROR) << "Receive " << to_string(star_gift_ptr);
-    return;
-  }
-  auto star_gift = telegram_api::move_object_as<telegram_api::starGift>(star_gift_ptr);
-  if (star_gift->id_ == 0) {
-    LOG(ERROR) << "Receive " << to_string(star_gift);
-    return;
-  }
-  auto sticker_id =
-      td->stickers_manager_->on_get_sticker_document(std::move(star_gift->sticker_), StickerFormat::Unknown, "StarGift")
-          .second;
-  if (!sticker_id.is_valid()) {
-    return;
-  }
-  if (star_gift->availability_total_ < 0) {
-    LOG(ERROR) << "Receive " << star_gift->availability_total_ << " total available gifts";
-    star_gift->availability_total_ = 0;
-  }
-  if ((star_gift->availability_total_ != 0 || star_gift->availability_remains_ != 0) &&
-      (star_gift->availability_remains_ < 0 || star_gift->availability_remains_ > star_gift->availability_total_)) {
-    LOG(ERROR) << "Receive " << star_gift->availability_total_ << " remained available gifts out of "
-               << star_gift->availability_total_;
-    if (star_gift->availability_remains_ < 0) {
-      return;
-    }
-    star_gift->availability_remains_ = star_gift->availability_total_;
-  }
-  if (star_gift->availability_remains_ == 0 && star_gift->availability_total_ > 0) {
-    first_sale_date_ = max(0, star_gift->first_sale_date_);
-    last_sale_date_ = max(first_sale_date_, star_gift->last_sale_date_);
-  }
-
-  id_ = star_gift->id_;
-  star_count_ = StarManager::get_star_count(star_gift->stars_);
-  default_sell_star_count_ = StarManager::get_star_count(star_gift->convert_stars_);
-  upgrade_star_count_ = StarManager::get_star_count(star_gift->upgrade_stars_);
-  sticker_file_id_ = sticker_id;
-  availability_remains_ = star_gift->availability_remains_;
-  availability_total_ = star_gift->availability_total_;
-  is_for_birthday_ = star_gift->birthday_;
-}
-
-td_api::object_ptr<td_api::gift> StarGift::get_gift_object(const Td *td) const {
-  CHECK(is_valid());
-  CHECK(!is_unique_);
-  return td_api::make_object<td_api::gift>(id_, td->stickers_manager_->get_sticker_object(sticker_file_id_),
-                                           star_count_, default_sell_star_count_, upgrade_star_count_, is_for_birthday_,
-                                           availability_remains_, availability_total_, first_sale_date_,
-                                           last_sale_date_);
-}
-
-td_api::object_ptr<td_api::upgradedGift> StarGift::get_upgraded_gift_object(Td *td) const {
-  CHECK(is_valid());
-  CHECK(is_unique_);
-  return td_api::make_object<td_api::upgradedGift>(
-      id_, title_, slug_, num_, unique_availability_issued_, unique_availability_total_,
-      !owner_dialog_id_.is_valid() ? nullptr : get_message_sender_object(td, owner_dialog_id_, "upgradedGift"),
-      owner_address_, owner_name_, gift_address_, model_.get_upgraded_gift_model_object(td),
-      pattern_.get_upgraded_gift_symbol_object(td), backdrop_.get_upgraded_gift_backdrop_object(),
-      original_details_.get_upgraded_gift_original_details_object(td));
-}
-
-td_api::object_ptr<td_api::SentGift> StarGift::get_sent_gift_object(Td *td) const {
-  if (is_unique_) {
-    return td_api::make_object<td_api::sentGiftUpgraded>(get_upgraded_gift_object(td));
-  } else {
-    return td_api::make_object<td_api::sentGiftRegular>(get_gift_object(td));
-  }
-}
-
-void StarGift::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add_message_sender_dependencies(owner_dialog_id_);
-  original_details_.add_dependencies(dependencies);
-}
-
-bool operator==(const StarGift &lhs, const StarGift &rhs) {
-  return lhs.id_ == rhs.id_ && lhs.sticker_file_id_ == rhs.sticker_file_id_ && lhs.star_count_ == rhs.star_count_ &&
-         lhs.default_sell_star_count_ == rhs.default_sell_star_count_ &&
-         lhs.upgrade_star_count_ == rhs.upgrade_star_count_ && lhs.availability_remains_ == rhs.availability_remains_ &&
-         lhs.availability_total_ == rhs.availability_total_ && lhs.first_sale_date_ == rhs.first_sale_date_ &&
-         lhs.last_sale_date_ == rhs.last_sale_date_ && lhs.is_for_birthday_ == rhs.is_for_birthday_ &&
-         lhs.is_unique_ == rhs.is_unique_ && lhs.model_ == rhs.model_ && lhs.pattern_ == rhs.pattern_ &&
-         lhs.backdrop_ == rhs.backdrop_ && lhs.original_details_ == rhs.original_details_ && lhs.title_ == rhs.title_ &&
-         lhs.slug_ == rhs.slug_ && lhs.owner_dialog_id_ == rhs.owner_dialog_id_ &&
-         lhs.owner_address_ == rhs.owner_address_ && lhs.owner_name_ == rhs.owner_name_ &&
-         lhs.gift_address_ == rhs.gift_address_ && lhs.num_ == rhs.num_ &&
-         lhs.unique_availability_issued_ == rhs.unique_availability_issued_ &&
-         lhs.unique_availability_total_ == rhs.unique_availability_total_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarGift &star_gift) {
-  return string_builder << "Gift[" << star_gift.id_ << " for " << star_gift.star_count_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGift.h b/third-party/td/td/td/telegram/StarGift.h
deleted file mode 100644
index c4b235655e..0000000000
--- a/third-party/td/td/td/telegram/StarGift.h
+++ /dev/null
@@ -1,106 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/StarGiftAttribute.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class StarGift {
-  int64 id_ = 0;
-
-  FileId sticker_file_id_;
-  int64 star_count_ = 0;
-  int64 default_sell_star_count_ = 0;
-  int64 upgrade_star_count_ = 0;
-  int32 availability_remains_ = 0;
-  int32 availability_total_ = 0;
-  int32 first_sale_date_ = 0;
-  int32 last_sale_date_ = 0;
-  bool is_for_birthday_ = false;
-
-  bool is_unique_ = false;
-  StarGiftAttributeSticker model_;
-  StarGiftAttributeSticker pattern_;
-  StarGiftAttributeBackdrop backdrop_;
-  StarGiftAttributeOriginalDetails original_details_;
-  string title_;
-  string slug_;
-  DialogId owner_dialog_id_;
-  string owner_address_;
-  string owner_name_;
-  string gift_address_;
-  int32 num_ = 0;
-  int32 unique_availability_issued_ = 0;
-  int32 unique_availability_total_ = 0;
-
-  friend bool operator==(const StarGift &lhs, const StarGift &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StarGift &star_gift);
-
- public:
-  StarGift() = default;
-
-  StarGift(Td *td, telegram_api::object_ptr<telegram_api::StarGift> &&star_gift_ptr, bool allow_unique_gift);
-
-  bool is_valid() const {
-    return id_ != 0 && (is_unique_ ? model_.is_valid() && pattern_.is_valid() && backdrop_.is_valid()
-                                   : sticker_file_id_.is_valid());
-  }
-
-  bool is_unique() const {
-    return is_unique_;
-  }
-
-  int64 get_id() const {
-    return id_;
-  }
-
-  int64 get_star_count() const {
-    CHECK(!is_unique_);
-    return star_count_;
-  }
-
-  int64 get_upgrade_star_count() const {
-    CHECK(!is_unique_);
-    return upgrade_star_count_;
-  }
-
-  td_api::object_ptr<td_api::gift> get_gift_object(const Td *td) const;
-
-  td_api::object_ptr<td_api::upgradedGift> get_upgraded_gift_object(Td *td) const;
-
-  td_api::object_ptr<td_api::SentGift> get_sent_gift_object(Td *td) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StarGift &lhs, const StarGift &rhs);
-
-inline bool operator!=(const StarGift &lhs, const StarGift &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarGift &star_gift);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGift.hpp b/third-party/td/td/td/telegram/StarGift.hpp
deleted file mode 100644
index 7b79a8a2ea..0000000000
--- a/third-party/td/td/td/telegram/StarGift.hpp
+++ /dev/null
@@ -1,191 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Global.h"
-#include "td/telegram/StarGift.h"
-#include "td/telegram/StarGiftAttribute.hpp"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StarGift::store(StorerT &storer) const {
-  CHECK(is_valid());
-  Td *td = storer.context()->td().get_actor_unsafe();
-  bool is_limited = availability_total_ != 0;
-  bool has_default_sell_star_count = default_sell_star_count_ != star_count_ * 85 / 100;
-  bool has_first_sale_date = first_sale_date_ != 0;
-  bool has_last_sale_date = last_sale_date_ != 0;
-  bool has_original_details = original_details_.is_valid();
-  bool has_upgrade_star_count = upgrade_star_count_ != 0;
-  bool has_owner_name = !owner_name_.empty();
-  bool has_slug = !slug_.empty();
-  bool has_owner_dialog_id = owner_dialog_id_.is_valid();
-  bool has_owner_address = !owner_address_.empty();
-  bool has_gift_address = !gift_address_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_limited);
-  STORE_FLAG(has_default_sell_star_count);
-  STORE_FLAG(has_first_sale_date);
-  STORE_FLAG(has_last_sale_date);
-  STORE_FLAG(is_for_birthday_);
-  STORE_FLAG(is_unique_);
-  STORE_FLAG(has_original_details);
-  STORE_FLAG(false);  // has_owner_user_id
-  STORE_FLAG(has_upgrade_star_count);
-  STORE_FLAG(has_owner_name);
-  STORE_FLAG(has_slug);
-  STORE_FLAG(has_owner_dialog_id);
-  STORE_FLAG(has_owner_address);
-  STORE_FLAG(has_gift_address);
-  END_STORE_FLAGS();
-  td::store(id_, storer);
-  if (!is_unique_) {
-    td->stickers_manager_->store_sticker(sticker_file_id_, false, storer, "StarGift");
-    td::store(star_count_, storer);
-  }
-  if (is_limited) {
-    td::store(availability_remains_, storer);
-    td::store(availability_total_, storer);
-  }
-  if (has_default_sell_star_count) {
-    td::store(default_sell_star_count_, storer);
-  }
-  if (has_first_sale_date) {
-    td::store(first_sale_date_, storer);
-  }
-  if (has_last_sale_date) {
-    td::store(last_sale_date_, storer);
-  }
-  if (has_upgrade_star_count) {
-    td::store(upgrade_star_count_, storer);
-  }
-  if (is_unique_) {
-    td::store(model_, storer);
-    td::store(pattern_, storer);
-    td::store(backdrop_, storer);
-    if (has_original_details) {
-      td::store(original_details_, storer);
-    }
-    td::store(title_, storer);
-    if (has_owner_dialog_id) {
-      td::store(owner_dialog_id_, storer);
-    }
-    if (has_owner_name) {
-      td::store(owner_name_, storer);
-    }
-    td::store(num_, storer);
-    td::store(unique_availability_issued_, storer);
-    td::store(unique_availability_total_, storer);
-    if (has_slug) {
-      td::store(slug_, storer);
-    }
-    if (has_owner_address) {
-      td::store(owner_address_, storer);
-    }
-    if (has_gift_address) {
-      td::store(gift_address_, storer);
-    }
-  }
-}
-
-template <class ParserT>
-void StarGift::parse(ParserT &parser) {
-  Td *td = parser.context()->td().get_actor_unsafe();
-  bool is_limited;
-  bool has_default_sell_star_count;
-  bool has_first_sale_date;
-  bool has_last_sale_date;
-  bool has_original_details;
-  bool has_owner_user_id;
-  bool has_upgrade_star_count;
-  bool has_owner_name;
-  bool has_slug;
-  bool has_owner_dialog_id;
-  bool has_owner_address;
-  bool has_gift_address;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_limited);
-  PARSE_FLAG(has_default_sell_star_count);
-  PARSE_FLAG(has_first_sale_date);
-  PARSE_FLAG(has_last_sale_date);
-  PARSE_FLAG(is_for_birthday_);
-  PARSE_FLAG(is_unique_);
-  PARSE_FLAG(has_original_details);
-  PARSE_FLAG(has_owner_user_id);
-  PARSE_FLAG(has_upgrade_star_count);
-  PARSE_FLAG(has_owner_name);
-  PARSE_FLAG(has_slug);
-  PARSE_FLAG(has_owner_dialog_id);
-  PARSE_FLAG(has_owner_address);
-  PARSE_FLAG(has_gift_address);
-  END_PARSE_FLAGS();
-  td::parse(id_, parser);
-  if (!is_unique_) {
-    sticker_file_id_ = td->stickers_manager_->parse_sticker(false, parser);
-    td::parse(star_count_, parser);
-  }
-  if (is_limited) {
-    td::parse(availability_remains_, parser);
-    td::parse(availability_total_, parser);
-  }
-  if (has_default_sell_star_count) {
-    td::parse(default_sell_star_count_, parser);
-  } else {
-    default_sell_star_count_ = star_count_ * 85 / 100;
-  }
-  if (has_first_sale_date) {
-    td::parse(first_sale_date_, parser);
-  }
-  if (has_last_sale_date) {
-    td::parse(last_sale_date_, parser);
-  }
-  if (has_upgrade_star_count) {
-    td::parse(upgrade_star_count_, parser);
-  }
-  if (is_unique_) {
-    td::parse(model_, parser);
-    td::parse(pattern_, parser);
-    td::parse(backdrop_, parser);
-    if (has_original_details) {
-      td::parse(original_details_, parser);
-    }
-    td::parse(title_, parser);
-    if (has_owner_user_id) {
-      UserId owner_user_id;
-      td::parse(owner_user_id, parser);
-      owner_dialog_id_ = DialogId(owner_user_id);
-    }
-    if (has_owner_dialog_id) {
-      td::parse(owner_dialog_id_, parser);
-    }
-    if (has_owner_name) {
-      td::parse(owner_name_, parser);
-    }
-    td::parse(num_, parser);
-    td::parse(unique_availability_issued_, parser);
-    td::parse(unique_availability_total_, parser);
-    if (has_slug) {
-      td::parse(slug_, parser);
-    }
-    if (has_owner_address) {
-      td::parse(owner_address_, parser);
-    }
-    if (has_gift_address) {
-      td::parse(gift_address_, parser);
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftAttribute.cpp b/third-party/td/td/td/telegram/StarGiftAttribute.cpp
deleted file mode 100644
index c2567ab91f..0000000000
--- a/third-party/td/td/td/telegram/StarGiftAttribute.cpp
+++ /dev/null
@@ -1,114 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarGiftAttribute.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-StarGiftAttributeSticker::StarGiftAttributeSticker(
-    Td *td, telegram_api::object_ptr<telegram_api::starGiftAttributeModel> &&attribute)
-    : name_(std::move(attribute->name_))
-    , sticker_file_id_(td->stickers_manager_
-                           ->on_get_sticker_document(std::move(attribute->document_), StickerFormat::Unknown,
-                                                     "StarGiftAttributeSticker")
-                           .second)
-    , rarity_permille_(attribute->rarity_permille_) {
-}
-
-StarGiftAttributeSticker::StarGiftAttributeSticker(
-    Td *td, telegram_api::object_ptr<telegram_api::starGiftAttributePattern> &&attribute)
-    : name_(std::move(attribute->name_))
-    , sticker_file_id_(td->stickers_manager_
-                           ->on_get_sticker_document(std::move(attribute->document_), StickerFormat::Unknown,
-                                                     "StarGiftAttributeSticker")
-                           .second)
-    , rarity_permille_(attribute->rarity_permille_) {
-}
-
-td_api::object_ptr<td_api::upgradedGiftModel> StarGiftAttributeSticker::get_upgraded_gift_model_object(
-    const Td *td) const {
-  CHECK(is_valid());
-  return td_api::make_object<td_api::upgradedGiftModel>(
-      name_, td->stickers_manager_->get_sticker_object(sticker_file_id_), rarity_permille_);
-}
-
-td_api::object_ptr<td_api::upgradedGiftSymbol> StarGiftAttributeSticker::get_upgraded_gift_symbol_object(
-    const Td *td) const {
-  CHECK(is_valid());
-  return td_api::make_object<td_api::upgradedGiftSymbol>(
-      name_, td->stickers_manager_->get_sticker_object(sticker_file_id_), rarity_permille_);
-}
-
-bool operator==(const StarGiftAttributeSticker &lhs, const StarGiftAttributeSticker &rhs) {
-  return lhs.name_ == rhs.name_ && lhs.sticker_file_id_ == rhs.sticker_file_id_ &&
-         lhs.rarity_permille_ == rhs.rarity_permille_;
-}
-
-StarGiftAttributeBackdrop::StarGiftAttributeBackdrop(
-    telegram_api::object_ptr<telegram_api::starGiftAttributeBackdrop> &&attribute)
-    : name_(std::move(attribute->name_))
-    , center_color_(attribute->center_color_)
-    , edge_color_(attribute->edge_color_)
-    , pattern_color_(attribute->pattern_color_)
-    , text_color_(attribute->text_color_)
-    , rarity_permille_(attribute->rarity_permille_) {
-}
-
-td_api::object_ptr<td_api::upgradedGiftBackdrop> StarGiftAttributeBackdrop::get_upgraded_gift_backdrop_object() const {
-  CHECK(is_valid());
-  return td_api::make_object<td_api::upgradedGiftBackdrop>(
-      name_,
-      td_api::make_object<td_api::upgradedGiftBackdropColors>(center_color_, edge_color_, pattern_color_, text_color_),
-      rarity_permille_);
-}
-
-bool operator==(const StarGiftAttributeBackdrop &lhs, const StarGiftAttributeBackdrop &rhs) {
-  return lhs.name_ == rhs.name_ && lhs.center_color_ == rhs.center_color_ && lhs.edge_color_ == rhs.edge_color_ &&
-         lhs.pattern_color_ == rhs.pattern_color_ && lhs.text_color_ == rhs.text_color_ &&
-         lhs.rarity_permille_ == rhs.rarity_permille_;
-}
-
-StarGiftAttributeOriginalDetails::StarGiftAttributeOriginalDetails(
-    Td *td, telegram_api::object_ptr<telegram_api::starGiftAttributeOriginalDetails> &&attribute)
-    : receiver_dialog_id_(attribute->recipient_id_)
-    , date_(attribute->date_)
-    , message_(get_formatted_text(td->user_manager_.get(), std::move(attribute->message_), true, false,
-                                  "starGiftAttributeBackdrop")) {
-  if (attribute->sender_id_ != nullptr) {
-    sender_dialog_id_ = DialogId(attribute->sender_id_);
-  }
-}
-
-td_api::object_ptr<td_api::upgradedGiftOriginalDetails>
-StarGiftAttributeOriginalDetails::get_upgraded_gift_original_details_object(Td *td) const {
-  if (!is_valid()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::upgradedGiftOriginalDetails>(
-      sender_dialog_id_ == DialogId()
-          ? nullptr
-          : get_message_sender_object(td, sender_dialog_id_, "upgradedGiftOriginalDetails sender"),
-      get_message_sender_object(td, receiver_dialog_id_, "upgradedGiftOriginalDetails sender"),
-      get_formatted_text_object(td->user_manager_.get(), message_, true, -1), date_);
-}
-
-void StarGiftAttributeOriginalDetails::add_dependencies(Dependencies &dependencies) const {
-  dependencies.add_message_sender_dependencies(sender_dialog_id_);
-  dependencies.add_message_sender_dependencies(receiver_dialog_id_);
-}
-
-bool operator==(const StarGiftAttributeOriginalDetails &lhs, const StarGiftAttributeOriginalDetails &rhs) {
-  return lhs.sender_dialog_id_ == rhs.sender_dialog_id_ && lhs.receiver_dialog_id_ == rhs.receiver_dialog_id_ &&
-         lhs.date_ == rhs.date_ && lhs.message_ == rhs.message_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftAttribute.h b/third-party/td/td/td/telegram/StarGiftAttribute.h
deleted file mode 100644
index 5b498b6d22..0000000000
--- a/third-party/td/td/td/telegram/StarGiftAttribute.h
+++ /dev/null
@@ -1,133 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class StarGiftAttributeSticker {
-  string name_;
-  FileId sticker_file_id_;
-  int32 rarity_permille_ = 0;
-
-  friend bool operator==(const StarGiftAttributeSticker &lhs, const StarGiftAttributeSticker &rhs);
-
- public:
-  StarGiftAttributeSticker() = default;
-
-  StarGiftAttributeSticker(Td *td, telegram_api::object_ptr<telegram_api::starGiftAttributeModel> &&attribute);
-
-  StarGiftAttributeSticker(Td *td, telegram_api::object_ptr<telegram_api::starGiftAttributePattern> &&attribute);
-
-  bool is_valid() const {
-    return 0 < rarity_permille_ && rarity_permille_ <= 1000 && sticker_file_id_.is_valid();
-  }
-
-  td_api::object_ptr<td_api::upgradedGiftModel> get_upgraded_gift_model_object(const Td *td) const;
-
-  td_api::object_ptr<td_api::upgradedGiftSymbol> get_upgraded_gift_symbol_object(const Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StarGiftAttributeSticker &lhs, const StarGiftAttributeSticker &rhs);
-
-inline bool operator!=(const StarGiftAttributeSticker &lhs, const StarGiftAttributeSticker &rhs) {
-  return !(lhs == rhs);
-}
-
-class StarGiftAttributeBackdrop {
-  string name_;
-  int32 center_color_ = 0;
-  int32 edge_color_ = 0;
-  int32 pattern_color_ = 0;
-  int32 text_color_ = 0;
-  int32 rarity_permille_ = 0;
-
-  friend bool operator==(const StarGiftAttributeBackdrop &lhs, const StarGiftAttributeBackdrop &rhs);
-
-  bool is_valid_color(int32 color) const {
-    return 0 <= color && color <= 0xFFFFFF;
-  }
-
- public:
-  StarGiftAttributeBackdrop() = default;
-
-  explicit StarGiftAttributeBackdrop(telegram_api::object_ptr<telegram_api::starGiftAttributeBackdrop> &&attribute);
-
-  bool is_valid() const {
-    return 0 < rarity_permille_ && rarity_permille_ <= 1000 && is_valid_color(center_color_) &&
-           is_valid_color(edge_color_) && is_valid_color(pattern_color_) && is_valid_color(text_color_);
-  }
-
-  td_api::object_ptr<td_api::upgradedGiftBackdrop> get_upgraded_gift_backdrop_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StarGiftAttributeBackdrop &lhs, const StarGiftAttributeBackdrop &rhs);
-
-inline bool operator!=(const StarGiftAttributeBackdrop &lhs, const StarGiftAttributeBackdrop &rhs) {
-  return !(lhs == rhs);
-}
-
-class StarGiftAttributeOriginalDetails {
-  DialogId sender_dialog_id_;
-  DialogId receiver_dialog_id_;
-  int32 date_ = 0;
-  FormattedText message_;
-
-  friend bool operator==(const StarGiftAttributeOriginalDetails &lhs, const StarGiftAttributeOriginalDetails &rhs);
-
- public:
-  StarGiftAttributeOriginalDetails() = default;
-
-  StarGiftAttributeOriginalDetails(
-      Td *td, telegram_api::object_ptr<telegram_api::starGiftAttributeOriginalDetails> &&attribute);
-
-  bool is_valid() const {
-    return (sender_dialog_id_ == DialogId() || sender_dialog_id_.is_valid()) && receiver_dialog_id_.is_valid() &&
-           date_ > 0;
-  }
-
-  td_api::object_ptr<td_api::upgradedGiftOriginalDetails> get_upgraded_gift_original_details_object(Td *td) const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StarGiftAttributeOriginalDetails &lhs, const StarGiftAttributeOriginalDetails &rhs);
-
-inline bool operator!=(const StarGiftAttributeOriginalDetails &lhs, const StarGiftAttributeOriginalDetails &rhs) {
-  return !(lhs == rhs);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftAttribute.hpp b/third-party/td/td/td/telegram/StarGiftAttribute.hpp
deleted file mode 100644
index 6822eb3b9c..0000000000
--- a/third-party/td/td/td/telegram/StarGiftAttribute.hpp
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StarGiftAttribute.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StarGiftAttributeSticker::store(StorerT &storer) const {
-  CHECK(is_valid());
-  Td *td = storer.context()->td().get_actor_unsafe();
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(name_, storer);
-  td->stickers_manager_->store_sticker(sticker_file_id_, false, storer, "StarGiftAttributeSticker");
-  td::store(rarity_permille_, storer);
-}
-
-template <class ParserT>
-void StarGiftAttributeSticker::parse(ParserT &parser) {
-  Td *td = parser.context()->td().get_actor_unsafe();
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(name_, parser);
-  sticker_file_id_ = td->stickers_manager_->parse_sticker(false, parser);
-  td::parse(rarity_permille_, parser);
-}
-
-template <class StorerT>
-void StarGiftAttributeBackdrop::store(StorerT &storer) const {
-  CHECK(is_valid());
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(name_, storer);
-  td::store(center_color_, storer);
-  td::store(edge_color_, storer);
-  td::store(pattern_color_, storer);
-  td::store(text_color_, storer);
-  td::store(rarity_permille_, storer);
-}
-
-template <class ParserT>
-void StarGiftAttributeBackdrop::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(name_, parser);
-  td::parse(center_color_, parser);
-  td::parse(edge_color_, parser);
-  td::parse(pattern_color_, parser);
-  td::parse(text_color_, parser);
-  td::parse(rarity_permille_, parser);
-}
-
-template <class StorerT>
-void StarGiftAttributeOriginalDetails::store(StorerT &storer) const {
-  CHECK(is_valid());
-  bool has_sender_user_id = sender_dialog_id_.get_type() == DialogType::User;
-  bool has_message = !message_.text.empty();
-  bool has_sender_dialog_id = sender_dialog_id_ != DialogId() && !has_sender_user_id;
-  bool has_receiver_dialog_id = receiver_dialog_id_.get_type() != DialogType::User;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_sender_user_id);
-  STORE_FLAG(has_message);
-  STORE_FLAG(has_sender_dialog_id);
-  STORE_FLAG(has_receiver_dialog_id);
-  END_STORE_FLAGS();
-  if (has_sender_user_id) {
-    td::store(sender_dialog_id_.get_user_id(), storer);
-  } else if (has_sender_dialog_id) {
-    td::store(sender_dialog_id_, storer);
-  }
-  if (has_receiver_dialog_id) {
-    td::store(receiver_dialog_id_, storer);
-  } else {
-    td::store(receiver_dialog_id_.get_user_id(), storer);
-  }
-  td::store(date_, storer);
-  if (has_message) {
-    td::store(message_, storer);
-  }
-}
-
-template <class ParserT>
-void StarGiftAttributeOriginalDetails::parse(ParserT &parser) {
-  bool has_sender_user_id;
-  bool has_message;
-  bool has_sender_dialog_id;
-  bool has_receiver_dialog_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_sender_user_id);
-  PARSE_FLAG(has_message);
-  PARSE_FLAG(has_sender_dialog_id);
-  PARSE_FLAG(has_receiver_dialog_id);
-  END_PARSE_FLAGS();
-  if (has_sender_user_id) {
-    UserId sender_user_id;
-    td::parse(sender_user_id, parser);
-    sender_dialog_id_ = DialogId(sender_user_id);
-  } else if (has_sender_dialog_id) {
-    td::parse(sender_dialog_id_, parser);
-  }
-  if (has_receiver_dialog_id) {
-    td::parse(receiver_dialog_id_, parser);
-  } else {
-    UserId receiver_user_id;
-    td::parse(receiver_user_id, parser);
-    receiver_dialog_id_ = DialogId(receiver_user_id);
-  }
-  td::parse(date_, parser);
-  if (has_message) {
-    td::parse(message_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftId.cpp b/third-party/td/td/td/telegram/StarGiftId.cpp
deleted file mode 100644
index b70d820986..0000000000
--- a/third-party/td/td/td/telegram/StarGiftId.cpp
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarGiftId.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-StarGiftId::StarGiftId(ServerMessageId server_message_id) {
-  if (server_message_id.is_valid()) {
-    type_ = Type::ForUser;
-    server_message_id_ = server_message_id;
-  } else if (server_message_id != ServerMessageId()) {
-    LOG(ERROR) << "Receive server message " << server_message_id.get();
-  }
-}
-
-StarGiftId::StarGiftId(DialogId dialog_id, int64 saved_id) {
-  if (dialog_id == DialogId()) {
-    return;
-  }
-  if (dialog_id.get_type() != DialogType::Channel || saved_id == 0) {
-    LOG(ERROR) << "Receive gift " << saved_id << " in " << dialog_id;
-    return;
-  }
-  type_ = Type::ForDialog;
-  dialog_id_ = dialog_id;
-  saved_id_ = saved_id;
-}
-
-StarGiftId::StarGiftId(const string &star_gift_id) {
-  if (star_gift_id.empty()) {
-    return;
-  }
-  auto underscore_pos = star_gift_id.find('_');
-  if (underscore_pos == string::npos) {
-    type_ = Type::ForUser;
-    server_message_id_ = ServerMessageId(to_integer<int32>(star_gift_id));
-  } else {
-    type_ = Type::ForDialog;
-    dialog_id_ = DialogId(to_integer<int64>(star_gift_id));
-    saved_id_ = to_integer<int64>(Slice(star_gift_id).substr(underscore_pos + 1));
-  }
-  if (get_star_gift_id() != star_gift_id) {
-    *this = {};
-  }
-}
-
-telegram_api::object_ptr<telegram_api::InputSavedStarGift> StarGiftId::get_input_saved_star_gift(Td *td) const {
-  switch (type_) {
-    case Type::Empty:
-      return nullptr;
-    case Type::ForUser:
-      return telegram_api::make_object<telegram_api::inputSavedStarGiftUser>(server_message_id_.get());
-    case Type::ForDialog: {
-      auto input_peer = td->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-      if (input_peer == nullptr) {
-        return nullptr;
-      }
-      return telegram_api::make_object<telegram_api::inputSavedStarGiftChat>(std::move(input_peer), saved_id_);
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-string StarGiftId::get_star_gift_id() const {
-  switch (type_) {
-    case Type::Empty:
-      return string();
-    case Type::ForUser:
-      return PSTRING() << server_message_id_.get();
-    case Type::ForDialog:
-      return PSTRING() << dialog_id_.get() << '_' << saved_id_;
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-DialogId StarGiftId::get_dialog_id(const Td *td) const {
-  switch (type_) {
-    case Type::Empty:
-      return DialogId();
-    case Type::ForUser:
-      return td->dialog_manager_->get_my_dialog_id();
-    case Type::ForDialog:
-      return dialog_id_;
-    default:
-      UNREACHABLE();
-      return DialogId();
-  }
-}
-
-bool operator==(const StarGiftId &lhs, const StarGiftId &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.server_message_id_ == rhs.server_message_id_ &&
-         lhs.dialog_id_ == rhs.dialog_id_ && lhs.saved_id_ == rhs.saved_id_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarGiftId &star_gift_id) {
-  switch (star_gift_id.type_) {
-    case StarGiftId::Type::Empty:
-      return string_builder << "unknown gift";
-    case StarGiftId::Type::ForUser:
-      return string_builder << "user gift from " << MessageId(star_gift_id.server_message_id_);
-    case StarGiftId::Type::ForDialog:
-      return string_builder << star_gift_id.dialog_id_ << " gift " << star_gift_id.saved_id_;
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftId.h b/third-party/td/td/td/telegram/StarGiftId.h
deleted file mode 100644
index 232be27b06..0000000000
--- a/third-party/td/td/td/telegram/StarGiftId.h
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class StarGiftId {
-  enum class Type : int32 { Empty, ForUser, ForDialog };
-  Type type_ = Type::Empty;
-
-  ServerMessageId server_message_id_;
-
-  DialogId dialog_id_;
-  int64 saved_id_ = 0;
-
-  friend bool operator==(const StarGiftId &lhs, const StarGiftId &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StarGiftId &star_gift_id);
-
- public:
-  StarGiftId() = default;
-
-  explicit StarGiftId(ServerMessageId server_message_id);
-
-  StarGiftId(DialogId dialog_id, int64 saved_id);
-
-  explicit StarGiftId(const string &star_gift_id);
-
-  bool is_empty() const {
-    return type_ == Type::Empty;
-  }
-
-  bool is_valid() const {
-    return type_ != Type::Empty;
-  }
-
-  telegram_api::object_ptr<telegram_api::InputSavedStarGift> get_input_saved_star_gift(Td *td) const;
-
-  string get_star_gift_id() const;
-
-  DialogId get_dialog_id(const Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StarGiftId &lhs, const StarGiftId &rhs);
-
-inline bool operator!=(const StarGiftId &lhs, const StarGiftId &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarGiftId &star_gift_id);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftId.hpp b/third-party/td/td/td/telegram/StarGiftId.hpp
deleted file mode 100644
index 7399946ca1..0000000000
--- a/third-party/td/td/td/telegram/StarGiftId.hpp
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StarGiftId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StarGiftId::store(StorerT &storer) const {
-  CHECK(is_valid());
-  bool has_server_message_id = server_message_id_.is_valid();
-  bool has_dialog_id = dialog_id_.is_valid();
-  bool has_saved_id = saved_id_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_server_message_id);
-  STORE_FLAG(has_dialog_id);
-  STORE_FLAG(has_saved_id);
-  END_STORE_FLAGS();
-  td::store(type_, storer);
-  if (has_server_message_id) {
-    td::store(server_message_id_, storer);
-  }
-  if (has_dialog_id) {
-    td::store(dialog_id_, storer);
-  }
-  if (has_saved_id) {
-    td::store(saved_id_, storer);
-  }
-}
-
-template <class ParserT>
-void StarGiftId::parse(ParserT &parser) {
-  bool has_server_message_id;
-  bool has_dialog_id;
-  bool has_saved_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_server_message_id);
-  PARSE_FLAG(has_dialog_id);
-  PARSE_FLAG(has_saved_id);
-  END_PARSE_FLAGS();
-  td::parse(type_, parser);
-  if (has_server_message_id) {
-    td::parse(server_message_id_, parser);
-  }
-  if (has_dialog_id) {
-    td::parse(dialog_id_, parser);
-  }
-  if (has_saved_id) {
-    td::parse(saved_id_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftManager.cpp b/third-party/td/td/td/telegram/StarGiftManager.cpp
deleted file mode 100644
index ccead5c564..0000000000
--- a/third-party/td/td/td/telegram/StarGiftManager.cpp
+++ /dev/null
@@ -1,1334 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarGiftManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/BusinessConnectionManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/EmojiStatus.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/StarGift.h"
-#include "td/telegram/StarGiftAttribute.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/UserStarGift.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class GetStarGiftsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::gifts>> promise_;
-
- public:
-  explicit GetStarGiftsQuery(Promise<td_api::object_ptr<td_api::gifts>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::payments_getStarGifts(0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarGifts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetStarGiftsQuery: " << to_string(ptr);
-    if (ptr->get_id() != telegram_api::payments_starGifts::ID) {
-      LOG(ERROR) << "Receive " << to_string(ptr);
-      return promise_.set_error(Status::Error(500, "Receive unexpected response"));
-    }
-    auto results = telegram_api::move_object_as<telegram_api::payments_starGifts>(ptr);
-    vector<td_api::object_ptr<td_api::gift>> options;
-    for (auto &gift : results->gifts_) {
-      StarGift star_gift(td_, std::move(gift), false);
-      if (!star_gift.is_valid()) {
-        continue;
-      }
-      td_->star_gift_manager_->on_get_star_gift(star_gift, true);
-      options.push_back(star_gift.get_gift_object(td_));
-    }
-
-    promise_.set_value(td_api::make_object<td_api::gifts>(std::move(options)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendGiftQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int64 star_count_;
-
- public:
-  explicit SendGiftQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::inputInvoiceStarGift> input_invoice, int64 payment_form_id,
-            int64 star_count) {
-    star_count_ = star_count;
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_sendStarsForm(payment_form_id, std::move(input_invoice))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_sendStarsForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendGiftQuery: " << to_string(payment_result);
-    switch (payment_result->get_id()) {
-      case telegram_api::payments_paymentResult::ID: {
-        auto result = telegram_api::move_object_as<telegram_api::payments_paymentResult>(payment_result);
-        td_->star_manager_->add_pending_owned_star_count(star_count_, true);
-        td_->updates_manager_->on_get_updates(std::move(result->updates_), std::move(promise_));
-        break;
-      }
-      case telegram_api::payments_paymentVerificationNeeded::ID:
-        td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-        LOG(ERROR) << "Receive " << to_string(payment_result);
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "FORM_SUBMIT_DUPLICATE") {
-      LOG(ERROR) << "Receive FORM_SUBMIT_DUPLICATE";
-    }
-    td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGiftPaymentFormQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int64 star_count_;
-  telegram_api::object_ptr<telegram_api::inputInvoiceStarGift> send_input_invoice_;
-
- public:
-  explicit GetGiftPaymentFormQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::inputInvoiceStarGift> input_invoice,
-            telegram_api::object_ptr<telegram_api::inputInvoiceStarGift> send_input_invoice, int64 star_count) {
-    send_input_invoice_ = std::move(send_input_invoice);
-    star_count_ = star_count;
-    td_->star_manager_->add_pending_owned_star_count(-star_count, false);
-    send_query(
-        G()->net_query_creator().create(telegram_api::payments_getPaymentForm(0, std::move(input_invoice), nullptr)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPaymentForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_form_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetGiftPaymentFormQuery: " << to_string(payment_form_ptr);
-    switch (payment_form_ptr->get_id()) {
-      case telegram_api::payments_paymentForm::ID:
-      case telegram_api::payments_paymentFormStars::ID:
-        LOG(ERROR) << "Receive " << to_string(payment_form_ptr);
-        td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-        promise_.set_error(Status::Error(500, "Unsupported"));
-        break;
-      case telegram_api::payments_paymentFormStarGift::ID: {
-        auto payment_form = static_cast<const telegram_api::payments_paymentFormStarGift *>(payment_form_ptr.get());
-        td_->create_handler<SendGiftQuery>(std::move(promise_))
-            ->send(std::move(send_input_invoice_), payment_form->form_id_, star_count_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ConvertStarGiftQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ConvertStarGiftQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, StarGiftId star_gift_id, DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_gift = star_gift_id.get_input_saved_star_gift(td_);
-    CHECK(input_gift != nullptr);
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(), telegram_api::payments_convertStarGift(std::move(input_gift)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_convertStarGift>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (dialog_id_ == td_->dialog_manager_->get_my_dialog_id()) {
-      td_->user_manager_->reload_user_full(td_->user_manager_->get_my_id(), std::move(promise_),
-                                           "ConvertStarGiftQuery");
-    } else if (dialog_id_.get_type() == DialogType::Channel) {
-      td_->chat_manager_->reload_channel_full(dialog_id_.get_channel_id(), std::move(promise_), "ConvertStarGiftQuery");
-    } else {
-      promise_.set_value(Unit());
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SaveStarGiftQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  bool is_saved_;
-
- public:
-  explicit SaveStarGiftQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(StarGiftId star_gift_id, bool is_saved) {
-    dialog_id_ = star_gift_id.get_dialog_id(td_);
-    is_saved_ = is_saved;
-    int32 flags = 0;
-    if (!is_saved) {
-      flags |= telegram_api::payments_saveStarGift::UNSAVE_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_saveStarGift(flags, false /*ignored*/, star_gift_id.get_input_saved_star_gift(td_)),
-        {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_saveStarGift>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleStarGiftsPinnedToTopQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ToggleStarGiftsPinnedToTopQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const vector<StarGiftId> &star_gift_ids) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    auto input_star_gifts = transform(star_gift_ids, [td = td_](const StarGiftId &star_gift_id) {
-      return star_gift_id.get_input_saved_star_gift(td);
-    });
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_toggleStarGiftsPinnedToTop(std::move(input_peer), std::move(input_star_gifts)),
-        {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_toggleStarGiftsPinnedToTop>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleStarGiftsPinnedToTopQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleChatStarGiftNotificationsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ToggleChatStarGiftNotificationsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool are_enabled) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    int32 flags = 0;
-    if (are_enabled) {
-      flags |= telegram_api::payments_toggleChatStarGiftNotifications::ENABLED_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_toggleChatStarGiftNotifications(flags, false /*ignored*/, std::move(input_peer)),
-        {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_toggleChatStarGiftNotifications>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleChatStarGiftNotificationsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetUpgradeGiftPreviewQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::giftUpgradePreview>> promise_;
-
- public:
-  explicit GetUpgradeGiftPreviewQuery(Promise<td_api::object_ptr<td_api::giftUpgradePreview>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 gift_id) {
-    send_query(G()->net_query_creator().create(telegram_api::payments_getStarGiftUpgradePreview(gift_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarGiftUpgradePreview>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetUpgradeGiftPreviewQuery: " << to_string(ptr);
-    auto result = td_api::make_object<td_api::giftUpgradePreview>();
-    for (auto &attribute : ptr->sample_attributes_) {
-      switch (attribute->get_id()) {
-        case telegram_api::starGiftAttributeModel::ID: {
-          auto model = StarGiftAttributeSticker(
-              td_, telegram_api::move_object_as<telegram_api::starGiftAttributeModel>(attribute));
-          if (!model.is_valid()) {
-            LOG(ERROR) << "Receive invalid model";
-          } else {
-            result->models_.push_back(model.get_upgraded_gift_model_object(td_));
-          }
-          break;
-        }
-        case telegram_api::starGiftAttributePattern::ID: {
-          auto pattern = StarGiftAttributeSticker(
-              td_, telegram_api::move_object_as<telegram_api::starGiftAttributePattern>(attribute));
-          if (!pattern.is_valid()) {
-            LOG(ERROR) << "Receive invalid symbol";
-          } else {
-            result->symbols_.push_back(pattern.get_upgraded_gift_symbol_object(td_));
-          }
-          break;
-        }
-        case telegram_api::starGiftAttributeBackdrop::ID: {
-          auto backdrop = StarGiftAttributeBackdrop(
-              telegram_api::move_object_as<telegram_api::starGiftAttributeBackdrop>(attribute));
-          if (!backdrop.is_valid()) {
-            LOG(ERROR) << "Receive invalid backdrop";
-          } else {
-            result->backdrops_.push_back(backdrop.get_upgraded_gift_backdrop_object());
-          }
-          break;
-        }
-        case telegram_api::starGiftAttributeOriginalDetails::ID:
-          LOG(ERROR) << "Receive unexpected original details";
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-static Promise<Unit> get_gift_upgrade_promise(Td *td, const telegram_api::object_ptr<telegram_api::Updates> &updates,
-                                              Promise<td_api::object_ptr<td_api::upgradeGiftResult>> &&promise) {
-  if (td->auth_manager_->is_bot()) {
-    return PromiseCreator::lambda([promise = std::move(promise)](Result<Unit> result) mutable {
-      if (result.is_error()) {
-        return promise.set_error(result.move_as_error());
-      }
-      promise.set_value(td_api::make_object<td_api::upgradeGiftResult>());
-    });
-  }
-  vector<std::pair<const telegram_api::Message *, bool>> new_messages = UpdatesManager::get_new_messages(updates.get());
-  if (new_messages.size() != 1u || new_messages[0].second ||
-      new_messages[0].first->get_id() != telegram_api::messageService::ID) {
-    promise.set_error(Status::Error(500, "Receive invalid server response"));
-    return Auto();
-  }
-  auto message = static_cast<const telegram_api::messageService *>(new_messages[0].first);
-  if (message->action_->get_id() != telegram_api::messageActionStarGiftUnique::ID) {
-    promise.set_error(Status::Error(500, "Receive invalid server response"));
-    return Auto();
-  }
-  auto action = static_cast<const telegram_api::messageActionStarGiftUnique *>(message->action_.get());
-  if (!action->upgrade_ || action->transferred_ || action->refunded_ ||
-      action->gift_->get_id() != telegram_api::starGiftUnique::ID) {
-    promise.set_error(Status::Error(500, "Receive invalid server response"));
-    return Auto();
-  }
-  auto message_full_id = MessageFullId::get_message_full_id(new_messages[0].first, false);
-  return PromiseCreator::lambda([message_full_id, promise = std::move(promise)](Result<Unit> result) mutable {
-    if (result.is_error()) {
-      return promise.set_error(result.move_as_error());
-    }
-    send_closure(G()->messages_manager(), &MessagesManager::finish_gift_upgrade, message_full_id, std::move(promise));
-  });
-}
-
-class UpgradeStarGiftQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::upgradeGiftResult>> promise_;
-
- public:
-  explicit UpgradeStarGiftQuery(Promise<td_api::object_ptr<td_api::upgradeGiftResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, StarGiftId star_gift_id, bool keep_original_details) {
-    auto input_gift = star_gift_id.get_input_saved_star_gift(td_);
-    CHECK(input_gift != nullptr);
-    int32 flags = 0;
-    if (keep_original_details) {
-      flags |= telegram_api::payments_upgradeStarGift::KEEP_ORIGINAL_DETAILS_MASK;
-    }
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_upgradeStarGift(flags, false /*ignored*/, std::move(input_gift)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_upgradeStarGift>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UpgradeStarGiftQuery: " << to_string(ptr);
-    auto promise = get_gift_upgrade_promise(td_, ptr, std::move(promise_));
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise));
-    get_upgraded_gift_emoji_statuses(td_, Auto());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpgradeGiftQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::upgradeGiftResult>> promise_;
-  int64 star_count_;
-
- public:
-  explicit UpgradeGiftQuery(Promise<td_api::object_ptr<td_api::upgradeGiftResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id,
-            telegram_api::object_ptr<telegram_api::inputInvoiceStarGiftUpgrade> input_invoice, int64 payment_form_id,
-            int64 star_count) {
-    star_count_ = star_count;
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_sendStarsForm(payment_form_id, std::move(input_invoice)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_sendStarsForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for UpgradeGiftQuery: " << to_string(payment_result);
-    switch (payment_result->get_id()) {
-      case telegram_api::payments_paymentResult::ID: {
-        auto result = telegram_api::move_object_as<telegram_api::payments_paymentResult>(payment_result);
-        td_->star_manager_->add_pending_owned_star_count(star_count_, true);
-        auto promise = get_gift_upgrade_promise(td_, result->updates_, std::move(promise_));
-        td_->updates_manager_->on_get_updates(std::move(result->updates_), std::move(promise));
-        break;
-      }
-      case telegram_api::payments_paymentVerificationNeeded::ID:
-        td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-        LOG(ERROR) << "Receive " << to_string(payment_result);
-        break;
-      default:
-        UNREACHABLE();
-    }
-    get_upgraded_gift_emoji_statuses(td_, Auto());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "FORM_SUBMIT_DUPLICATE") {
-      LOG(ERROR) << "Receive FORM_SUBMIT_DUPLICATE";
-    }
-    td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGiftUpgradePaymentFormQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::upgradeGiftResult>> promise_;
-  BusinessConnectionId business_connection_id_;
-  int64 star_count_;
-  telegram_api::object_ptr<telegram_api::inputInvoiceStarGiftUpgrade> upgrade_input_invoice_;
-
- public:
-  explicit GetGiftUpgradePaymentFormQuery(Promise<td_api::object_ptr<td_api::upgradeGiftResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id,
-            telegram_api::object_ptr<telegram_api::inputInvoiceStarGiftUpgrade> input_invoice,
-            telegram_api::object_ptr<telegram_api::inputInvoiceStarGiftUpgrade> upgrade_input_invoice,
-            int64 star_count) {
-    business_connection_id_ = business_connection_id;
-    upgrade_input_invoice_ = std::move(upgrade_input_invoice);
-    star_count_ = star_count;
-    td_->star_manager_->add_pending_owned_star_count(-star_count, false);
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_getPaymentForm(0, std::move(input_invoice), nullptr),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPaymentForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_form_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetGiftUpgradePaymentFormQuery: " << to_string(payment_form_ptr);
-    switch (payment_form_ptr->get_id()) {
-      case telegram_api::payments_paymentForm::ID:
-      case telegram_api::payments_paymentFormStars::ID:
-        LOG(ERROR) << "Receive " << to_string(payment_form_ptr);
-        td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-        promise_.set_error(Status::Error(500, "Unsupported"));
-        break;
-      case telegram_api::payments_paymentFormStarGift::ID: {
-        auto payment_form = static_cast<const telegram_api::payments_paymentFormStarGift *>(payment_form_ptr.get());
-        if (payment_form->invoice_->prices_.size() != 1u ||
-            payment_form->invoice_->prices_[0]->amount_ != star_count_) {
-          td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-          return promise_.set_error(Status::Error(400, "Wrong upgrade price specified"));
-        }
-        td_->create_handler<UpgradeGiftQuery>(std::move(promise_))
-            ->send(business_connection_id_, std::move(upgrade_input_invoice_), payment_form->form_id_, star_count_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class TransferStarGiftQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit TransferStarGiftQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, StarGiftId star_gift_id,
-            telegram_api::object_ptr<telegram_api::InputPeer> receiver_input_peer) {
-    auto input_gift = star_gift_id.get_input_saved_star_gift(td_);
-    CHECK(input_gift != nullptr);
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_transferStarGift(std::move(input_gift), std::move(receiver_input_peer)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_transferStarGift>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for TransferStarGiftQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-    get_upgraded_gift_emoji_statuses(td_, Auto());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class TransferGiftQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int64 star_count_;
-
- public:
-  explicit TransferGiftQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id,
-            telegram_api::object_ptr<telegram_api::inputInvoiceStarGiftTransfer> input_invoice, int64 payment_form_id,
-            int64 star_count) {
-    star_count_ = star_count;
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_sendStarsForm(payment_form_id, std::move(input_invoice)),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_sendStarsForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for TransferGiftQuery: " << to_string(payment_result);
-    switch (payment_result->get_id()) {
-      case telegram_api::payments_paymentResult::ID: {
-        auto result = telegram_api::move_object_as<telegram_api::payments_paymentResult>(payment_result);
-        td_->star_manager_->add_pending_owned_star_count(star_count_, true);
-        td_->updates_manager_->on_get_updates(std::move(result->updates_), std::move(promise_));
-        break;
-      }
-      case telegram_api::payments_paymentVerificationNeeded::ID:
-        td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-        LOG(ERROR) << "Receive " << to_string(payment_result);
-        break;
-      default:
-        UNREACHABLE();
-    }
-    get_upgraded_gift_emoji_statuses(td_, Auto());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "FORM_SUBMIT_DUPLICATE") {
-      LOG(ERROR) << "Receive FORM_SUBMIT_DUPLICATE";
-    }
-    td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetGiftTransferPaymentFormQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  BusinessConnectionId business_connection_id_;
-  int64 star_count_;
-  telegram_api::object_ptr<telegram_api::inputInvoiceStarGiftTransfer> transfer_input_invoice_;
-
- public:
-  explicit GetGiftTransferPaymentFormQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id,
-            telegram_api::object_ptr<telegram_api::inputInvoiceStarGiftTransfer> input_invoice,
-            telegram_api::object_ptr<telegram_api::inputInvoiceStarGiftTransfer> transfer_input_invoice,
-            int64 star_count) {
-    business_connection_id_ = business_connection_id;
-    transfer_input_invoice_ = std::move(transfer_input_invoice);
-    star_count_ = star_count;
-    td_->star_manager_->add_pending_owned_star_count(-star_count, false);
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_getPaymentForm(0, std::move(input_invoice), nullptr),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getPaymentForm>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto payment_form_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetGiftTransferPaymentFormQuery: " << to_string(payment_form_ptr);
-    switch (payment_form_ptr->get_id()) {
-      case telegram_api::payments_paymentForm::ID:
-      case telegram_api::payments_paymentFormStars::ID:
-        LOG(ERROR) << "Receive " << to_string(payment_form_ptr);
-        td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-        promise_.set_error(Status::Error(500, "Unsupported"));
-        break;
-      case telegram_api::payments_paymentFormStarGift::ID: {
-        auto payment_form = static_cast<const telegram_api::payments_paymentFormStarGift *>(payment_form_ptr.get());
-        if (payment_form->invoice_->prices_.size() != 1u ||
-            payment_form->invoice_->prices_[0]->amount_ != star_count_) {
-          td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-          return promise_.set_error(Status::Error(400, "Wrong transfer price specified"));
-        }
-        td_->create_handler<TransferGiftQuery>(std::move(promise_))
-            ->send(business_connection_id_, std::move(transfer_input_invoice_), payment_form->form_id_, star_count_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->star_manager_->add_pending_owned_star_count(star_count_, false);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSavedStarGiftsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::receivedGifts>> promise_;
-  DialogId dialog_id_;
-  BusinessConnectionId business_connection_id_;
-
- public:
-  explicit GetSavedStarGiftsQuery(Promise<td_api::object_ptr<td_api::receivedGifts>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, DialogId dialog_id, bool exclude_unsaved, bool exclude_saved,
-            bool exclude_unlimited, bool exclude_limited, bool exclude_unique, bool sort_by_value, const string &offset,
-            int32 limit) {
-    business_connection_id_ = business_connection_id;
-    dialog_id_ =
-        business_connection_id.is_valid()
-            ? DialogId(td_->business_connection_manager_->get_business_connection_user_id(business_connection_id))
-            : dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    int32 flags = 0;
-    if (exclude_unsaved) {
-      flags |= telegram_api::payments_getSavedStarGifts::EXCLUDE_UNSAVED_MASK;
-    }
-    if (exclude_saved) {
-      flags |= telegram_api::payments_getSavedStarGifts::EXCLUDE_SAVED_MASK;
-    }
-    if (exclude_unlimited) {
-      flags |= telegram_api::payments_getSavedStarGifts::EXCLUDE_UNLIMITED_MASK;
-    }
-    if (exclude_limited) {
-      flags |= telegram_api::payments_getSavedStarGifts::EXCLUDE_LIMITED_MASK;
-    }
-    if (exclude_unique) {
-      flags |= telegram_api::payments_getSavedStarGifts::EXCLUDE_UNIQUE_MASK;
-    }
-    if (sort_by_value) {
-      flags |= telegram_api::payments_getSavedStarGifts::SORT_BY_VALUE_MASK;
-    }
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::payments_getSavedStarGifts(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                                 false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                                 std::move(input_peer), offset, limit),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id), {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getSavedStarGifts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetSavedStarGiftsQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetSavedStarGiftsQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetSavedStarGiftsQuery");
-
-    auto total_count = ptr->count_;
-    if (total_count < static_cast<int32>(ptr->gifts_.size())) {
-      LOG(ERROR) << "Receive " << ptr->gifts_.size() << " gifts with total count = " << total_count;
-      total_count = static_cast<int32>(ptr->gifts_.size());
-    }
-    vector<td_api::object_ptr<td_api::receivedGift>> gifts;
-    for (auto &gift : ptr->gifts_) {
-      UserStarGift user_gift(td_, std::move(gift), dialog_id_);
-      if (!user_gift.is_valid()) {
-        LOG(ERROR) << "Receive invalid user gift";
-        continue;
-      }
-      gifts.push_back(user_gift.get_received_gift_object(td_));
-    }
-    bool are_notifications_enabled = false;
-    if (dialog_id_.get_type() == DialogType::User) {
-      if (dialog_id_ != td_->dialog_manager_->get_my_dialog_id()) {
-        td_->user_manager_->on_update_user_gift_count(dialog_id_.get_user_id(), total_count);
-      } else {
-        are_notifications_enabled = true;
-      }
-    } else if (dialog_id_.get_type() == DialogType::Channel) {
-      td_->chat_manager_->on_update_channel_gift_count(dialog_id_.get_channel_id(), total_count, false);
-      are_notifications_enabled = ptr->chat_notifications_enabled_;
-    }
-    promise_.set_value(td_api::make_object<td_api::receivedGifts>(total_count, std::move(gifts),
-                                                                  are_notifications_enabled, ptr->next_offset_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSavedStarGiftQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::receivedGift>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetSavedStarGiftQuery(Promise<td_api::object_ptr<td_api::receivedGift>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(StarGiftId star_gift_id) {
-    auto input_gift = star_gift_id.get_input_saved_star_gift(td_);
-    if (input_gift == nullptr) {
-      return on_error(Status::Error(400, "Gift not found"));
-    }
-    vector<telegram_api::object_ptr<telegram_api::InputSavedStarGift>> gifts;
-    gifts.push_back(std::move(input_gift));
-    dialog_id_ = star_gift_id.get_dialog_id(td_);
-    send_query(G()->net_query_creator().create(telegram_api::payments_getSavedStarGift(std::move(gifts))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getSavedStarGift>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetSavedStarGiftQuery: " << to_string(ptr);
-
-    for (auto &gift : ptr->gifts_) {
-      UserStarGift user_gift(td_, std::move(gift), dialog_id_);
-      if (!user_gift.is_valid()) {
-        LOG(ERROR) << "Receive invalid user gift";
-        continue;
-      }
-      return promise_.set_value(user_gift.get_received_gift_object(td_));
-    }
-    promise_.set_error(Status::Error(400, "Gift not found"));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetUniqueStarGiftQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::upgradedGift>> promise_;
-
- public:
-  explicit GetUniqueStarGiftQuery(Promise<td_api::object_ptr<td_api::upgradedGift>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &name) {
-    send_query(G()->net_query_creator().create(telegram_api::payments_getUniqueStarGift(name)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getUniqueStarGift>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetUniqueStarGiftQuery: " << to_string(ptr);
-
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetUniqueStarGiftQuery");
-
-    StarGift star_gift(td_, std::move(ptr->gift_), true);
-    if (!star_gift.is_valid() || !star_gift.is_unique()) {
-      LOG(ERROR) << "Receive invalid user gift";
-      return promise_.set_error(Status::Error(400, "Gift not found"));
-    }
-    promise_.set_value(star_gift.get_upgraded_gift_object(td_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStarGiftWithdrawalUrlQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit GetStarGiftWithdrawalUrlQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(StarGiftId star_gift_id,
-            telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password) {
-    auto input_gift = star_gift_id.get_input_saved_star_gift(td_);
-    if (input_gift == nullptr) {
-      return on_error(Status::Error(400, "Gift not found"));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getStarGiftWithdrawalUrl(std::move(input_gift), std::move(input_check_password))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarGiftWithdrawalUrl>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(std::move(result_ptr.ok_ref()->url_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-StarGiftManager::StarGiftManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  update_gift_message_timeout_.set_callback(on_update_gift_message_timeout_callback);
-  update_gift_message_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-StarGiftManager::~StarGiftManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), gift_full_message_ids_,
-                                              gift_full_message_ids_by_id_, being_reloaded_gift_messages_);
-}
-
-void StarGiftManager::start_up() {
-  if (!td_->auth_manager_->is_bot()) {
-    class StateCallback final : public StateManager::Callback {
-     public:
-      explicit StateCallback(ActorId<StarGiftManager> parent) : parent_(std::move(parent)) {
-      }
-      bool on_online(bool is_online) final {
-        if (is_online) {
-          send_closure(parent_, &StarGiftManager::on_online);
-        }
-        return parent_.is_alive();
-      }
-
-     private:
-      ActorId<StarGiftManager> parent_;
-    };
-    send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-  }
-}
-
-void StarGiftManager::tear_down() {
-  parent_.reset();
-}
-
-void StarGiftManager::get_gift_payment_options(Promise<td_api::object_ptr<td_api::gifts>> &&promise) {
-  td_->create_handler<GetStarGiftsQuery>(std::move(promise))->send();
-}
-
-void StarGiftManager::on_get_star_gift(const StarGift &star_gift, bool from_server) {
-  if (td_->auth_manager_->is_bot() || !star_gift.is_valid() || star_gift.is_unique()) {
-    return;
-  }
-  if (!from_server && gift_prices_.count(star_gift.get_id())) {
-    return;
-  }
-  gift_prices_[star_gift.get_id()] = {star_gift.get_star_count(), star_gift.get_upgrade_star_count()};
-}
-
-void StarGiftManager::send_gift(int64 gift_id, DialogId dialog_id, td_api::object_ptr<td_api::formattedText> text,
-                                bool is_private, bool pay_for_upgrade, Promise<Unit> &&promise) {
-  int64 star_count = 0;
-  if (!td_->auth_manager_->is_bot()) {
-    auto it = gift_prices_.find(gift_id);
-    if (it == gift_prices_.end()) {
-      return promise.set_error(Status::Error(400, "Gift not found"));
-    }
-    star_count = it->second.first;
-    if (pay_for_upgrade) {
-      star_count += it->second.second;
-    }
-    if (!td_->star_manager_->has_owned_star_count(star_count)) {
-      return promise.set_error(Status::Error(400, "Have not enough Telegram Stars"));
-    }
-  }
-  auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-  auto send_input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-  if (input_peer == nullptr || send_input_peer == nullptr) {
-    return promise.set_error(Status::Error(400, "Have no access to the gift receiver"));
-  }
-  TRY_RESULT_PROMISE(
-      promise, message,
-      get_formatted_text(td_, td_->dialog_manager_->get_my_dialog_id(), std::move(text), false, true, true, false));
-  MessageQuote::remove_unallowed_quote_entities(message);
-
-  auto input_invoice = telegram_api::make_object<telegram_api::inputInvoiceStarGift>(
-      0, is_private, pay_for_upgrade, std::move(input_peer), gift_id, nullptr);
-  auto send_input_invoice = telegram_api::make_object<telegram_api::inputInvoiceStarGift>(
-      0, is_private, pay_for_upgrade, std::move(send_input_peer), gift_id, nullptr);
-  if (!message.text.empty()) {
-    input_invoice->flags_ |= telegram_api::inputInvoiceStarGift::MESSAGE_MASK;
-    input_invoice->message_ = get_input_text_with_entities(td_->user_manager_.get(), message, "send_gift");
-
-    send_input_invoice->flags_ |= telegram_api::inputInvoiceStarGift::MESSAGE_MASK;
-    send_input_invoice->message_ = get_input_text_with_entities(td_->user_manager_.get(), message, "send_gift");
-  }
-  td_->create_handler<GetGiftPaymentFormQuery>(std::move(promise))
-      ->send(std::move(input_invoice), std::move(send_input_invoice), star_count);
-}
-
-void StarGiftManager::convert_gift(BusinessConnectionId business_connection_id, StarGiftId star_gift_id,
-                                   Promise<Unit> &&promise) {
-  if (business_connection_id.is_valid()) {
-    TRY_STATUS_PROMISE(promise, td_->business_connection_manager_->check_business_connection(business_connection_id));
-  }
-  if (star_gift_id.get_input_saved_star_gift(td_) == nullptr) {
-    return promise.set_error(Status::Error(400, "Invalid gift identifier specified"));
-  }
-  auto dialog_id =
-      business_connection_id.is_valid()
-          ? DialogId(td_->business_connection_manager_->get_business_connection_user_id(business_connection_id))
-          : star_gift_id.get_dialog_id(td_);
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &StarGiftManager::on_dialog_gift_transferred, dialog_id, DialogId(), std::move(promise));
-      });
-  td_->create_handler<ConvertStarGiftQuery>(std::move(query_promise))
-      ->send(business_connection_id, star_gift_id, dialog_id);
-}
-
-void StarGiftManager::save_gift(StarGiftId star_gift_id, bool is_saved, Promise<Unit> &&promise) {
-  if (star_gift_id.get_input_saved_star_gift(td_) == nullptr) {
-    return promise.set_error(Status::Error(400, "Invalid gift identifier specified"));
-  }
-  td_->create_handler<SaveStarGiftQuery>(std::move(promise))->send(star_gift_id, is_saved);
-}
-
-void StarGiftManager::set_dialog_pinned_gifts(DialogId dialog_id, const vector<StarGiftId> &star_gift_ids,
-                                              Promise<Unit> &&promise) {
-  for (const auto &star_gift_id : star_gift_ids) {
-    if (star_gift_id.get_input_saved_star_gift(td_) == nullptr) {
-      return promise.set_error(Status::Error(400, "Invalid gift identifier specified"));
-    }
-    if (star_gift_id.get_dialog_id(td_) != dialog_id) {
-      return promise.set_error(Status::Error(400, "The gift is not from the chat"));
-    }
-  }
-  td_->create_handler<ToggleStarGiftsPinnedToTopQuery>(std::move(promise))->send(dialog_id, star_gift_ids);
-}
-
-void StarGiftManager::toggle_chat_star_gift_notifications(DialogId dialog_id, bool are_enabled,
-                                                          Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "toggle_chat_star_gift_notifications"));
-  if (!td_->dialog_manager_->is_broadcast_channel(dialog_id) ||
-      !td_->chat_manager_->get_channel_status(dialog_id.get_channel_id()).can_post_messages()) {
-    return promise.set_error(Status::Error(400, "Wrong chat specified"));
-  }
-  td_->create_handler<ToggleChatStarGiftNotificationsQuery>(std::move(promise))->send(dialog_id, are_enabled);
-}
-
-void StarGiftManager::get_gift_upgrade_preview(int64 gift_id,
-                                               Promise<td_api::object_ptr<td_api::giftUpgradePreview>> &&promise) {
-  td_->create_handler<GetUpgradeGiftPreviewQuery>(std::move(promise))->send(gift_id);
-}
-
-void StarGiftManager::upgrade_gift(BusinessConnectionId business_connection_id, StarGiftId star_gift_id,
-                                   bool keep_original_details, int64 star_count,
-                                   Promise<td_api::object_ptr<td_api::upgradeGiftResult>> &&promise) {
-  bool as_business = business_connection_id.is_valid();
-  if (as_business) {
-    TRY_STATUS_PROMISE(promise, td_->business_connection_manager_->check_business_connection(business_connection_id));
-  }
-  auto input_saved_star_gift = star_gift_id.get_input_saved_star_gift(td_);
-  if (input_saved_star_gift == nullptr) {
-    return promise.set_error(Status::Error(400, "Invalid gift identifier specified"));
-  }
-  if (star_count < 0) {
-    return promise.set_error(Status::Error(400, "Invalid amount of Telegram Stars specified"));
-  }
-  if (star_count != 0) {
-    if (!as_business && !td_->star_manager_->has_owned_star_count(star_count)) {
-      return promise.set_error(Status::Error(400, "Have not enough Telegram Stars"));
-    }
-    auto input_invoice = telegram_api::make_object<telegram_api::inputInvoiceStarGiftUpgrade>(
-        0, keep_original_details, std::move(input_saved_star_gift));
-    auto upgrade_input_invoice = telegram_api::make_object<telegram_api::inputInvoiceStarGiftUpgrade>(
-        0, keep_original_details, star_gift_id.get_input_saved_star_gift(td_));
-    td_->create_handler<GetGiftUpgradePaymentFormQuery>(std::move(promise))
-        ->send(business_connection_id, std::move(input_invoice), std::move(upgrade_input_invoice), star_count);
-  } else {
-    td_->create_handler<UpgradeStarGiftQuery>(std::move(promise))
-        ->send(business_connection_id, star_gift_id, keep_original_details);
-  }
-}
-
-void StarGiftManager::transfer_gift(BusinessConnectionId business_connection_id, StarGiftId star_gift_id,
-                                    DialogId receiver_dialog_id, int64 star_count, Promise<Unit> &&promise) {
-  bool as_business = business_connection_id.is_valid();
-  if (as_business) {
-    TRY_STATUS_PROMISE(promise, td_->business_connection_manager_->check_business_connection(business_connection_id));
-  }
-  auto access_rights = as_business ? AccessRights::Know : AccessRights::Read;
-  auto input_peer = td_->dialog_manager_->get_input_peer(receiver_dialog_id, access_rights);
-  auto transfer_input_peer = td_->dialog_manager_->get_input_peer(receiver_dialog_id, access_rights);
-  if (input_peer == nullptr || transfer_input_peer == nullptr) {
-    return promise.set_error(Status::Error(400, "Have no access to the new gift owner"));
-  }
-  auto input_saved_star_gift = star_gift_id.get_input_saved_star_gift(td_);
-  if (input_saved_star_gift == nullptr) {
-    return promise.set_error(Status::Error(400, "Invalid gift identifier specified"));
-  }
-  if (star_count < 0) {
-    return promise.set_error(Status::Error(400, "Invalid amount of Telegram Stars specified"));
-  }
-  auto dialog_id =
-      as_business ? DialogId(td_->business_connection_manager_->get_business_connection_user_id(business_connection_id))
-                  : star_gift_id.get_dialog_id(td_);
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, receiver_dialog_id,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      return promise.set_error(result.move_as_error());
-    }
-    send_closure(actor_id, &StarGiftManager::on_dialog_gift_transferred, dialog_id, receiver_dialog_id,
-                 std::move(promise));
-  });
-  if (star_count != 0) {
-    if (!as_business && !td_->star_manager_->has_owned_star_count(star_count)) {
-      return query_promise.set_error(Status::Error(400, "Have not enough Telegram Stars"));
-    }
-    auto input_invoice = telegram_api::make_object<telegram_api::inputInvoiceStarGiftTransfer>(
-        std::move(input_saved_star_gift), std::move(input_peer));
-    auto transfer_input_invoice = telegram_api::make_object<telegram_api::inputInvoiceStarGiftTransfer>(
-        star_gift_id.get_input_saved_star_gift(td_), std::move(transfer_input_peer));
-    td_->create_handler<GetGiftTransferPaymentFormQuery>(std::move(query_promise))
-        ->send(business_connection_id, std::move(input_invoice), std::move(transfer_input_invoice), star_count);
-  } else {
-    td_->create_handler<TransferStarGiftQuery>(std::move(query_promise))
-        ->send(business_connection_id, star_gift_id, std::move(input_peer));
-  }
-}
-
-void StarGiftManager::on_dialog_gift_transferred(DialogId from_dialog_id, DialogId to_dialog_id,
-                                                 Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (from_dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    td_->user_manager_->on_update_my_gift_count(-1);
-  } else if (from_dialog_id.get_type() == DialogType::Channel) {
-    td_->chat_manager_->on_update_channel_gift_count(from_dialog_id.get_channel_id(), -1, true);
-  }
-  if (to_dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    td_->user_manager_->on_update_my_gift_count(1);
-  } else if (to_dialog_id.get_type() == DialogType::Channel &&
-             td_->chat_manager_->get_channel_status(to_dialog_id.get_channel_id()).can_post_messages()) {
-    td_->chat_manager_->on_update_channel_gift_count(to_dialog_id.get_channel_id(), 1, true);
-  }
-  promise.set_value(Unit());
-}
-
-void StarGiftManager::get_saved_star_gifts(BusinessConnectionId business_connection_id, DialogId dialog_id,
-                                           bool exclude_unsaved, bool exclude_saved, bool exclude_unlimited,
-                                           bool exclude_limited, bool exclude_unique, bool sort_by_value,
-                                           const string &offset, int32 limit,
-                                           Promise<td_api::object_ptr<td_api::receivedGifts>> &&promise) {
-  if (limit < 0) {
-    return promise.set_error(Status::Error(400, "Limit must be non-negative"));
-  }
-  if (business_connection_id.is_valid()) {
-    TRY_STATUS_PROMISE(promise, td_->business_connection_manager_->check_business_connection(business_connection_id));
-  }
-  td_->create_handler<GetSavedStarGiftsQuery>(std::move(promise))
-      ->send(business_connection_id, dialog_id, exclude_unsaved, exclude_saved, exclude_unlimited, exclude_limited,
-             exclude_unique, sort_by_value, offset, limit);
-}
-
-void StarGiftManager::get_saved_star_gift(StarGiftId star_gift_id,
-                                          Promise<td_api::object_ptr<td_api::receivedGift>> &&promise) {
-  if (!star_gift_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid gift identifier specified"));
-  }
-  td_->create_handler<GetSavedStarGiftQuery>(std::move(promise))->send(star_gift_id);
-}
-
-void StarGiftManager::get_upgraded_gift(const string &name,
-                                        Promise<td_api::object_ptr<td_api::upgradedGift>> &&promise) {
-  td_->create_handler<GetUniqueStarGiftQuery>(std::move(promise))->send(name);
-}
-
-void StarGiftManager::get_star_gift_withdrawal_url(StarGiftId star_gift_id, const string &password,
-                                                   Promise<string> &&promise) {
-  if (!star_gift_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid gift identifier specified"));
-  }
-  if (password.empty()) {
-    return promise.set_error(Status::Error(400, "PASSWORD_HASH_INVALID"));
-  }
-  send_closure(
-      td_->password_manager_, &PasswordManager::get_input_check_password_srp, password,
-      PromiseCreator::lambda([actor_id = actor_id(this), star_gift_id, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP>> result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &StarGiftManager::send_get_star_gift_withdrawal_url_query, star_gift_id,
-                     result.move_as_ok(), std::move(promise));
-      }));
-}
-
-void StarGiftManager::send_get_star_gift_withdrawal_url_query(
-    StarGiftId star_gift_id, telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password,
-    Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  td_->create_handler<GetStarGiftWithdrawalUrlQuery>(std::move(promise))
-      ->send(star_gift_id, std::move(input_check_password));
-}
-
-void StarGiftManager::register_gift(MessageFullId message_full_id, const char *source) {
-  auto message_id = message_full_id.get_message_id();
-  if (message_id.is_scheduled()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(message_id.is_valid());
-  CHECK(message_id.is_server());
-  LOG(INFO) << "Register gift in " << message_full_id << " from " << source;
-  auto gift_message_number = ++gift_message_count_;
-  gift_full_message_ids_.set(message_full_id, gift_message_number);
-  gift_full_message_ids_by_id_.set(gift_message_number, message_full_id);
-  update_gift_message_timeout_.add_timeout_in(gift_message_number, 0);
-}
-
-void StarGiftManager::unregister_gift(MessageFullId message_full_id, const char *source) {
-  auto message_id = message_full_id.get_message_id();
-  if (message_id.is_scheduled()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(message_id.is_valid());
-  CHECK(message_id.is_server());
-  LOG(INFO) << "Unregister gift in " << message_full_id << " from " << source;
-  auto message_number = gift_full_message_ids_[message_full_id];
-  LOG_CHECK(message_number != 0) << source << ' ' << message_full_id;
-  gift_full_message_ids_by_id_.erase(message_number);
-  if (!G()->close_flag()) {
-    update_gift_message_timeout_.cancel_timeout(message_number);
-  }
-  gift_full_message_ids_.erase(message_full_id);
-}
-
-double StarGiftManager::get_gift_message_polling_timeout() const {
-  double result = td_->online_manager_->is_online() ? 60 : 30 * 60;
-  return result * Random::fast(70, 100) * 0.01;
-}
-
-void StarGiftManager::on_online() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  gift_full_message_ids_.foreach([&](MessageFullId, int64 message_number) {
-    if (update_gift_message_timeout_.has_timeout(message_number)) {
-      update_gift_message_timeout_.set_timeout_in(message_number, Random::fast(3, 30));
-    }
-  });
-}
-
-void StarGiftManager::on_update_gift_message_timeout_callback(void *star_gift_manager_ptr, int64 message_number) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto star_gift_manager = static_cast<StarGiftManager *>(star_gift_manager_ptr);
-  send_closure_later(star_gift_manager->actor_id(star_gift_manager), &StarGiftManager::on_update_gift_message_timeout,
-                     message_number);
-}
-
-void StarGiftManager::on_update_gift_message_timeout(int64 message_number) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  auto message_full_id = gift_full_message_ids_by_id_.get(message_number);
-  if (message_full_id.get_message_id() == MessageId()) {
-    return;
-  }
-  if (!being_reloaded_gift_messages_.insert(message_full_id).second) {
-    return;
-  }
-  LOG(INFO) << "Fetching gift from " << message_full_id;
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), message_full_id](Unit result) {
-    send_closure(actor_id, &StarGiftManager::on_update_gift_message, message_full_id);
-  });
-  td_->messages_manager_->get_message_from_server(message_full_id, std::move(promise),
-                                                  "on_update_gift_message_timeout");
-}
-
-void StarGiftManager::on_update_gift_message(MessageFullId message_full_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  auto is_erased = being_reloaded_gift_messages_.erase(message_full_id) > 0;
-  CHECK(is_erased);
-  auto message_number = gift_full_message_ids_.get(message_full_id);
-  if (message_number == 0) {
-    return;
-  }
-
-  auto timeout = get_gift_message_polling_timeout();
-  LOG(INFO) << "Schedule updating of gift in " << message_full_id << " in " << timeout;
-  update_gift_message_timeout_.add_timeout_in(message_number, timeout);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftManager.h b/third-party/td/td/td/telegram/StarGiftManager.h
deleted file mode 100644
index 2cd5464daa..0000000000
--- a/third-party/td/td/td/telegram/StarGiftManager.h
+++ /dev/null
@@ -1,112 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/StarGiftId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-#include <utility>
-
-namespace td {
-
-class StarGift;
-class Td;
-
-class StarGiftManager final : public Actor {
- public:
-  StarGiftManager(Td *td, ActorShared<> parent);
-  StarGiftManager(const StarGiftManager &) = delete;
-  StarGiftManager &operator=(const StarGiftManager &) = delete;
-  StarGiftManager(StarGiftManager &&) = delete;
-  StarGiftManager &operator=(StarGiftManager &&) = delete;
-  ~StarGiftManager() final;
-
-  void get_gift_payment_options(Promise<td_api::object_ptr<td_api::gifts>> &&promise);
-
-  void on_get_star_gift(const StarGift &star_gift, bool from_server);
-
-  void send_gift(int64 gift_id, DialogId dialog_id, td_api::object_ptr<td_api::formattedText> text, bool is_private,
-                 bool pay_for_upgrade, Promise<Unit> &&promise);
-
-  void convert_gift(BusinessConnectionId business_connection_id, StarGiftId star_gift_id, Promise<Unit> &&promise);
-
-  void save_gift(StarGiftId star_gift_id, bool is_saved, Promise<Unit> &&promise);
-
-  void set_dialog_pinned_gifts(DialogId dialog_id, const vector<StarGiftId> &star_gift_ids, Promise<Unit> &&promise);
-
-  void toggle_chat_star_gift_notifications(DialogId dialog_id, bool are_enabled, Promise<Unit> &&promise);
-
-  void get_gift_upgrade_preview(int64 gift_id, Promise<td_api::object_ptr<td_api::giftUpgradePreview>> &&promise);
-
-  void upgrade_gift(BusinessConnectionId business_connection_id, StarGiftId star_gift_id, bool keep_original_details,
-                    int64 star_count, Promise<td_api::object_ptr<td_api::upgradeGiftResult>> &&promise);
-
-  void transfer_gift(BusinessConnectionId business_connection_id, StarGiftId star_gift_id, DialogId receiver_dialog_id,
-                     int64 star_count, Promise<Unit> &&promise);
-
-  void get_saved_star_gifts(BusinessConnectionId business_connection_id, DialogId dialog_id, bool exclude_unsaved,
-                            bool exclude_saved, bool exclude_unlimited, bool exclude_limited, bool exclude_unique,
-                            bool sort_by_value, const string &offset, int32 limit,
-                            Promise<td_api::object_ptr<td_api::receivedGifts>> &&promise);
-
-  void get_saved_star_gift(StarGiftId star_gift_id, Promise<td_api::object_ptr<td_api::receivedGift>> &&promise);
-
-  void get_upgraded_gift(const string &name, Promise<td_api::object_ptr<td_api::upgradedGift>> &&promise);
-
-  void get_star_gift_withdrawal_url(StarGiftId star_gift_id, const string &password, Promise<string> &&promise);
-
-  void register_gift(MessageFullId message_full_id, const char *source);
-
-  void unregister_gift(MessageFullId message_full_id, const char *source);
-
- private:
-  void start_up() final;
-
-  void tear_down() final;
-
-  void send_get_star_gift_withdrawal_url_query(
-      StarGiftId star_gift_id, telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password,
-      Promise<string> &&promise);
-
-  double get_gift_message_polling_timeout() const;
-
-  static void on_update_gift_message_timeout_callback(void *star_gift_manager_ptr, int64 message_number);
-
-  void on_update_gift_message_timeout(int64 message_number);
-
-  void on_update_gift_message(MessageFullId message_full_id);
-
-  void on_online();
-
-  void on_dialog_gift_transferred(DialogId from_dialog_id, DialogId to_dialog_id, Promise<Unit> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  FlatHashMap<int64, std::pair<int64, int64>> gift_prices_;
-
-  int64 gift_message_count_ = 0;
-  WaitFreeHashMap<MessageFullId, int64, MessageFullIdHash> gift_full_message_ids_;
-  WaitFreeHashMap<int64, MessageFullId> gift_full_message_ids_by_id_;
-  FlatHashSet<MessageFullId, MessageFullIdHash> being_reloaded_gift_messages_;
-  MultiTimeout update_gift_message_timeout_{"UpdateGiftMessageTimeout"};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftSettings.cpp b/third-party/td/td/td/telegram/StarGiftSettings.cpp
deleted file mode 100644
index b9e0ad66ae..0000000000
--- a/third-party/td/td/td/telegram/StarGiftSettings.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarGiftSettings.h"
-
-namespace td {
-
-StarGiftSettings::StarGiftSettings(bool display_gifts_button,
-                                   telegram_api::object_ptr<telegram_api::disallowedGiftsSettings> &&settings)
-    : display_gifts_button_(display_gifts_button), disallowed_gifts_(std::move(settings)) {
-}
-
-StarGiftSettings::StarGiftSettings(const td_api::object_ptr<td_api::giftSettings> &settings) {
-  if (settings != nullptr) {
-    display_gifts_button_ = settings->show_gift_button_;
-    disallowed_gifts_ = DisallowedGiftsSettings(settings->accepted_gift_types_);
-  }
-}
-
-td_api::object_ptr<td_api::giftSettings> StarGiftSettings::get_gift_settings_object() const {
-  return td_api::make_object<td_api::giftSettings>(display_gifts_button_,
-                                                   disallowed_gifts_.get_accepted_gift_types_object());
-}
-
-bool operator==(const StarGiftSettings &lhs, const StarGiftSettings &rhs) {
-  return lhs.display_gifts_button_ == rhs.display_gifts_button_ && lhs.disallowed_gifts_ == rhs.disallowed_gifts_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarGiftSettings &settings) {
-  if (settings.display_gifts_button_) {
-    string_builder << "(show button)";
-  }
-  return string_builder << settings.disallowed_gifts_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftSettings.h b/third-party/td/td/td/telegram/StarGiftSettings.h
deleted file mode 100644
index 2a02b2425d..0000000000
--- a/third-party/td/td/td/telegram/StarGiftSettings.h
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DisallowedGiftsSettings.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class StarGiftSettings {
-  bool display_gifts_button_ = false;
-  DisallowedGiftsSettings disallowed_gifts_;
-
-  friend bool operator==(const StarGiftSettings &lhs, const StarGiftSettings &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StarGiftSettings &settings);
-
- public:
-  StarGiftSettings() = default;
-
-  StarGiftSettings(bool display_gifts_button,
-                   telegram_api::object_ptr<telegram_api::disallowedGiftsSettings> &&settings);
-
-  explicit StarGiftSettings(const td_api::object_ptr<td_api::giftSettings> &settings);
-
-  td_api::object_ptr<td_api::giftSettings> get_gift_settings_object() const;
-
-  bool get_display_gifts_button() const {
-    return display_gifts_button_;
-  }
-
-  const DisallowedGiftsSettings &get_disallowed_gifts() const {
-    return disallowed_gifts_;
-  }
-
-  bool is_default() const {
-    return !display_gifts_button_ && disallowed_gifts_.is_default();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StarGiftSettings &lhs, const StarGiftSettings &rhs);
-
-inline bool operator!=(const StarGiftSettings &lhs, const StarGiftSettings &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarGiftSettings &settings);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarGiftSettings.hpp b/third-party/td/td/td/telegram/StarGiftSettings.hpp
deleted file mode 100644
index 8369c4bb53..0000000000
--- a/third-party/td/td/td/telegram/StarGiftSettings.hpp
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DisallowedGiftsSettings.hpp"
-#include "td/telegram/StarGiftSettings.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StarGiftSettings::store(StorerT &storer) const {
-  bool has_default_disallowed_gifts = disallowed_gifts_.is_default();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(display_gifts_button_);
-  STORE_FLAG(has_default_disallowed_gifts);
-  END_STORE_FLAGS();
-  if (!has_default_disallowed_gifts) {
-    td::store(disallowed_gifts_, storer);
-  }
-}
-
-template <class ParserT>
-void StarGiftSettings::parse(ParserT &parser) {
-  bool has_default_disallowed_gifts;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(display_gifts_button_);
-  PARSE_FLAG(has_default_disallowed_gifts);
-  END_PARSE_FLAGS();
-  if (!has_default_disallowed_gifts) {
-    td::parse(disallowed_gifts_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarManager.cpp b/third-party/td/td/td/telegram/StarManager.cpp
deleted file mode 100644
index 7af8462375..0000000000
--- a/third-party/td/td/td/telegram/StarManager.cpp
+++ /dev/null
@@ -1,1377 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/InputInvoice.h"
-#include "td/telegram/MessageExtendedMedia.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StarAmount.h"
-#include "td/telegram/StarGift.h"
-#include "td/telegram/StarGiftManager.h"
-#include "td/telegram/StarSubscription.h"
-#include "td/telegram/StatisticsManager.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class GetStarsTopupOptionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::starPaymentOptions>> promise_;
-
- public:
-  explicit GetStarsTopupOptionsQuery(Promise<td_api::object_ptr<td_api::starPaymentOptions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::payments_getStarsTopupOptions()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsTopupOptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto results = result_ptr.move_as_ok();
-    vector<td_api::object_ptr<td_api::starPaymentOption>> options;
-    for (auto &result : results) {
-      options.push_back(td_api::make_object<td_api::starPaymentOption>(result->currency_, result->amount_,
-                                                                       StarManager::get_star_count(result->stars_),
-                                                                       result->store_product_, result->extended_));
-    }
-
-    promise_.set_value(td_api::make_object<td_api::starPaymentOptions>(std::move(options)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStarsGiftOptionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::starPaymentOptions>> promise_;
-
- public:
-  explicit GetStarsGiftOptionsQuery(Promise<td_api::object_ptr<td_api::starPaymentOptions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> input_user) {
-    int32 flags = 0;
-    if (input_user != nullptr) {
-      flags |= telegram_api::payments_getStarsGiftOptions::USER_ID_MASK;
-    }
-    send_query(
-        G()->net_query_creator().create(telegram_api::payments_getStarsGiftOptions(flags, std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsGiftOptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto results = result_ptr.move_as_ok();
-    vector<td_api::object_ptr<td_api::starPaymentOption>> options;
-    for (auto &result : results) {
-      options.push_back(td_api::make_object<td_api::starPaymentOption>(result->currency_, result->amount_,
-                                                                       StarManager::get_star_count(result->stars_),
-                                                                       result->store_product_, result->extended_));
-    }
-
-    promise_.set_value(td_api::make_object<td_api::starPaymentOptions>(std::move(options)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStarsGiveawayOptionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::starGiveawayPaymentOptions>> promise_;
-
- public:
-  explicit GetStarsGiveawayOptionsQuery(Promise<td_api::object_ptr<td_api::starGiveawayPaymentOptions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::payments_getStarsGiveawayOptions()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsGiveawayOptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto results = result_ptr.move_as_ok();
-    vector<td_api::object_ptr<td_api::starGiveawayPaymentOption>> options;
-    for (auto &result : results) {
-      vector<td_api::object_ptr<td_api::starGiveawayWinnerOption>> winner_options;
-      for (auto &winner : result->winners_) {
-        winner_options.push_back(td_api::make_object<td_api::starGiveawayWinnerOption>(
-            winner->users_, StarManager::get_star_count(winner->per_user_stars_), winner->default_));
-      }
-      options.push_back(td_api::make_object<td_api::starGiveawayPaymentOption>(
-          result->currency_, result->amount_, StarManager::get_star_count(result->stars_), result->store_product_,
-          result->yearly_boosts_, std::move(winner_options), result->default_, result->extended_));
-    }
-
-    promise_.set_value(td_api::make_object<td_api::starGiveawayPaymentOptions>(std::move(options)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStarsTransactionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::starTransactions>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetStarsTransactionsQuery(Promise<td_api::object_ptr<td_api::starTransactions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const string &subscription_id, const string &offset, int32 limit,
-            td_api::object_ptr<td_api::StarTransactionDirection> &&direction) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no access to the chat"));
-    }
-    int32 flags = 0;
-    if (!subscription_id.empty()) {
-      flags |= telegram_api::payments_getStarsTransactions::SUBSCRIPTION_ID_MASK;
-    }
-    if (direction != nullptr) {
-      switch (direction->get_id()) {
-        case td_api::starTransactionDirectionIncoming::ID:
-          flags |= telegram_api::payments_getStarsTransactions::INBOUND_MASK;
-          break;
-        case td_api::starTransactionDirectionOutgoing::ID:
-          flags |= telegram_api::payments_getStarsTransactions::OUTBOUND_MASK;
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-    if (td_->auth_manager_->is_bot()) {
-      flags |= telegram_api::payments_getStarsTransactions::ASCENDING_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getStarsTransactions(flags, false /*ignored*/, false /*ignored*/, false /*ignored*/,
-                                                    subscription_id, std::move(input_peer), offset, limit)));
-  }
-
-  void send(DialogId dialog_id, const string &transaction_id, bool is_refund) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no access to the chat"));
-    }
-    vector<telegram_api::object_ptr<telegram_api::inputStarsTransaction>> transaction_ids;
-    transaction_ids.push_back(
-        telegram_api::make_object<telegram_api::inputStarsTransaction>(0, is_refund, transaction_id));
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getStarsTransactionsByID(std::move(input_peer), std::move(transaction_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::payments_getStarsTransactionsByID::ReturnType,
-                               telegram_api::payments_getStarsTransactions::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsTransactions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetStarsTransactionsQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetStarsTransactionsQuery");
-    td_->chat_manager_->on_get_chats(std::move(result->chats_), "GetStarsTransactionsQuery");
-
-    bool for_bot =
-        dialog_id_.get_type() == DialogType::User && td_->user_manager_->is_user_bot(dialog_id_.get_user_id());
-    bool for_user = dialog_id_.get_type() == DialogType::User && !for_bot;
-    bool for_chat = !for_user && !for_bot;
-    bool for_channel = for_chat && td_->dialog_manager_->is_broadcast_channel(dialog_id_);
-    bool for_supergroup = for_chat && !for_channel;
-    vector<td_api::object_ptr<td_api::starTransaction>> transactions;
-    for (auto &transaction : result->history_) {
-      vector<FileId> file_ids;
-      td_api::object_ptr<td_api::productInfo> product_info;
-      string bot_payload;
-      td_api::object_ptr<td_api::affiliateInfo> affiliate;
-      int32 commission_per_mille = 0;
-      if (!transaction->title_.empty() || !transaction->description_.empty() || transaction->photo_ != nullptr) {
-        auto photo = get_web_document_photo(td_->file_manager_.get(), std::move(transaction->photo_), DialogId());
-        append(file_ids, photo_get_file_ids(photo));
-        product_info = get_product_info_object(td_, transaction->title_, transaction->description_, photo);
-      }
-      if (!transaction->bot_payload_.empty()) {
-        if (td_->auth_manager_->is_bot()) {
-          bot_payload = transaction->bot_payload_.as_slice().str();
-        } else if (!for_bot) {
-          LOG(ERROR) << "Receive Star transaction with bot payload";
-        }
-      }
-      if (transaction->starref_peer_ != nullptr) {
-        DialogId referrer_dialog_id(transaction->starref_peer_);
-        if (transaction->starref_commission_permille_ > 0 && transaction->starref_commission_permille_ < 1000 &&
-            referrer_dialog_id.is_valid()) {
-          td_->dialog_manager_->force_create_dialog(referrer_dialog_id, "affiliateInfo", true);
-          auto referrer_star_amount = StarAmount(std::move(transaction->starref_amount_), true);
-          affiliate = td_api::make_object<td_api::affiliateInfo>(
-              transaction->starref_commission_permille_,
-              td_->dialog_manager_->get_chat_id_object(referrer_dialog_id, "affiliateInfo"),
-              referrer_star_amount.get_star_amount_object());
-        } else {
-          LOG(ERROR) << "Receive invalid affiliate info: " << to_string(transaction);
-        }
-      } else if (transaction->starref_commission_permille_ != 0) {
-        if (transaction->starref_commission_permille_ > 0 && transaction->starref_commission_permille_ < 1000) {
-          commission_per_mille = transaction->starref_commission_permille_;
-        } else {
-          LOG(ERROR) << "Receive invalid commission: " << to_string(transaction);
-        }
-      }
-      auto get_paid_media_object = [&](DialogId dialog_id) -> vector<td_api::object_ptr<td_api::PaidMedia>> {
-        auto extended_media = transform(std::move(transaction->extended_media_), [td = td_, dialog_id](auto &&media) {
-          return MessageExtendedMedia(td, std::move(media), dialog_id);
-        });
-        for (auto &media : extended_media) {
-          media.append_file_ids(td_, file_ids);
-        }
-        auto extended_media_objects =
-            transform(std::move(extended_media), [td = td_](auto &&media) { return media.get_paid_media_object(td); });
-        transaction->extended_media_.clear();
-        return extended_media_objects;
-      };
-      auto get_message_id_object = [&] {
-        auto message_id = MessageId(ServerMessageId(transaction->msg_id_));
-        if (message_id != MessageId() && !message_id.is_valid()) {
-          LOG(ERROR) << "Receive " << message_id << " in " << to_string(transaction);
-          message_id = MessageId();
-        }
-        transaction->msg_id_ = 0;
-        return message_id.get();
-      };
-      auto transaction_amount = StarAmount(std::move(transaction->stars_), true);
-      auto is_refund = transaction->refund_;
-      auto is_purchase = transaction_amount.is_positive() == is_refund;
-      auto type = [&]() -> td_api::object_ptr<td_api::StarTransactionType> {
-        switch (transaction->peer_->get_id()) {
-          case telegram_api::starsTransactionPeerUnsupported::ID:
-            return td_api::make_object<td_api::starTransactionTypeUnsupported>();
-          case telegram_api::starsTransactionPeerPremiumBot::ID:
-            if (for_user) {
-              return td_api::make_object<td_api::starTransactionTypePremiumBotDeposit>();
-            }
-            return nullptr;
-          case telegram_api::starsTransactionPeerAppStore::ID:
-            if (for_user) {
-              return td_api::make_object<td_api::starTransactionTypeAppStoreDeposit>();
-            }
-            return nullptr;
-          case telegram_api::starsTransactionPeerPlayMarket::ID:
-            if (for_user) {
-              return td_api::make_object<td_api::starTransactionTypeGooglePlayDeposit>();
-            }
-            return nullptr;
-          case telegram_api::starsTransactionPeerFragment::ID: {
-            if (transaction->gift_) {
-              if (for_user) {
-                transaction->gift_ = false;
-                return td_api::make_object<td_api::starTransactionTypeUserDeposit>(
-                    0, td_->stickers_manager_->get_premium_gift_sticker_object(0, transaction_amount.get_star_count()));
-              }
-              return nullptr;
-            }
-            auto state = [&]() -> td_api::object_ptr<td_api::RevenueWithdrawalState> {
-              if (transaction->transaction_date_ > 0) {
-                SCOPE_EXIT {
-                  transaction->transaction_date_ = 0;
-                  transaction->transaction_url_.clear();
-                };
-                return td_api::make_object<td_api::revenueWithdrawalStateSucceeded>(transaction->transaction_date_,
-                                                                                    transaction->transaction_url_);
-              }
-              if (transaction->pending_) {
-                transaction->pending_ = false;
-                return td_api::make_object<td_api::revenueWithdrawalStatePending>();
-              }
-              if (transaction->failed_) {
-                transaction->failed_ = false;
-                return td_api::make_object<td_api::revenueWithdrawalStateFailed>();
-              }
-              return nullptr;
-            }();
-            if (state != nullptr || is_refund) {
-              if (for_user || for_bot || for_chat) {
-                return td_api::make_object<td_api::starTransactionTypeFragmentWithdrawal>(std::move(state));
-              }
-              return nullptr;
-            }
-            if (for_user || for_bot) {
-              return td_api::make_object<td_api::starTransactionTypeFragmentDeposit>();
-            }
-            return nullptr;
-          }
-          case telegram_api::starsTransactionPeer::ID: {
-            DialogId dialog_id(
-                static_cast<const telegram_api::starsTransactionPeer *>(transaction->peer_.get())->peer_);
-            if (!dialog_id.is_valid()) {
-              return nullptr;
-            }
-            if (commission_per_mille != 0) {
-              SCOPE_EXIT {
-                commission_per_mille = 0;
-              };
-              td_->dialog_manager_->force_create_dialog(dialog_id, "starsTransactionPeer", true);
-              auto chat_id =
-                  td_->dialog_manager_->get_chat_id_object(dialog_id, "starTransactionTypeAffiliateProgramCommission");
-              return td_api::make_object<td_api::starTransactionTypeAffiliateProgramCommission>(chat_id,
-                                                                                                commission_per_mille);
-            }
-            if (transaction->paid_messages_) {
-              if (is_purchase) {
-                if (!td_->dialog_manager_->is_broadcast_channel(dialog_id) && for_user) {
-                  SCOPE_EXIT {
-                    product_info = nullptr;
-                    transaction->paid_messages_ = 0;
-                  };
-                  td_->dialog_manager_->force_create_dialog(dialog_id, "starsTransactionPeer", true);
-                  auto chat_id =
-                      td_->dialog_manager_->get_chat_id_object(dialog_id, "starTransactionTypePaidMessageSend");
-                  return td_api::make_object<td_api::starTransactionTypePaidMessageSend>(chat_id,
-                                                                                         transaction->paid_messages_);
-                }
-              } else {
-                if ((for_user || for_supergroup) && affiliate != nullptr) {
-                  SCOPE_EXIT {
-                    product_info = nullptr;
-                    transaction->paid_messages_ = 0;
-                    affiliate = nullptr;
-                  };
-                  return td_api::make_object<td_api::starTransactionTypePaidMessageReceive>(
-                      get_message_sender_object(td_, dialog_id, "starTransactionTypePaidMessageReceive"),
-                      transaction->paid_messages_, affiliate->commission_per_mille_,
-                      std::move(affiliate->star_amount_));
-                }
-              }
-              return nullptr;
-            }
-            if (dialog_id.get_type() == DialogType::User) {
-              auto user_id = dialog_id.get_user_id();
-              auto user_id_object = td_->user_manager_->get_user_id_object(user_id, "starsTransactionPeer");
-              if (transaction->business_transfer_) {
-                transaction->business_transfer_ = false;
-                if (is_purchase) {
-                  if (for_user) {
-                    product_info = nullptr;
-                    return td_api::make_object<td_api::starTransactionTypeBusinessBotTransferSend>(user_id_object);
-                  }
-                } else {
-                  if (for_bot) {
-                    product_info = nullptr;
-                    return td_api::make_object<td_api::starTransactionTypeBusinessBotTransferReceive>(user_id_object);
-                  }
-                }
-                return nullptr;
-              }
-              if (transaction->stargift_ != nullptr) {
-                auto gift = StarGift(td_, std::move(transaction->stargift_), true);
-                transaction->stargift_ = nullptr;
-                if (!gift.is_valid()) {
-                  return nullptr;
-                }
-                td_->star_gift_manager_->on_get_star_gift(gift, true);
-                if (is_purchase) {
-                  if (gift.is_unique()) {
-                    if (transaction->stargift_upgrade_) {
-                      if (for_user) {
-                        transaction->stargift_upgrade_ = false;
-                        transaction->msg_id_ = 0;  // ignore
-                        product_info = nullptr;
-                        return td_api::make_object<td_api::starTransactionTypeGiftUpgrade>(
-                            user_id_object, gift.get_upgraded_gift_object(td_));
-                      }
-                    } else {
-                      if (for_user) {
-                        return td_api::make_object<td_api::starTransactionTypeGiftTransfer>(
-                            get_message_sender_object(td_, user_id, DialogId(), "starTransactionTypeGiftTransfer"),
-                            gift.get_upgraded_gift_object(td_));
-                      }
-                    }
-                  } else {
-                    if (for_user || for_bot) {
-                      return td_api::make_object<td_api::starTransactionTypeGiftPurchase>(
-                          get_message_sender_object(td_, user_id, DialogId(), "starTransactionTypeGiftPurchase"),
-                          gift.get_gift_object(td_));
-                    }
-                  }
-                } else {
-                  if (gift.is_unique()) {
-                    LOG(ERROR) << "Receive sale of an upgraded gift";
-                  } else {
-                    if (for_user || for_channel) {
-                      product_info = nullptr;
-                      return td_api::make_object<td_api::starTransactionTypeGiftSale>(user_id_object,
-                                                                                      gift.get_gift_object(td_));
-                    }
-                  }
-                }
-                return nullptr;
-              }
-              if (transaction->subscription_period_ > 0) {
-                SCOPE_EXIT {
-                  transaction->subscription_period_ = 0;
-                };
-                if (is_purchase) {
-                  if (for_user) {
-                    return td_api::make_object<td_api::starTransactionTypeBotSubscriptionPurchase>(
-                        user_id_object, transaction->subscription_period_, std::move(product_info));
-                  }
-                } else {
-                  if (for_channel) {
-                    return td_api::make_object<td_api::starTransactionTypeChannelSubscriptionSale>(
-                        user_id_object, transaction->subscription_period_);
-                  } else if (for_bot) {
-                    SCOPE_EXIT {
-                      bot_payload.clear();
-                    };
-                    return td_api::make_object<td_api::starTransactionTypeBotSubscriptionSale>(
-                        user_id_object, transaction->subscription_period_, std::move(product_info), bot_payload,
-                        std::move(affiliate));
-                  }
-                }
-                return nullptr;
-              }
-              if (transaction->gift_) {
-                if (for_user) {
-                  transaction->gift_ = false;
-                  return td_api::make_object<td_api::starTransactionTypeUserDeposit>(
-                      user_id == UserManager::get_service_notifications_user_id()
-                          ? 0
-                          : td_->user_manager_->get_user_id_object(user_id, "starTransactionTypeUserDeposit"),
-                      td_->stickers_manager_->get_premium_gift_sticker_object(0, transaction_amount.get_star_count()));
-                }
-                return nullptr;
-              }
-              if (transaction->subscription_period_ > 0) {
-                if (for_channel) {
-                  SCOPE_EXIT {
-                    transaction->subscription_period_ = 0;
-                  };
-                  return td_api::make_object<td_api::starTransactionTypeChannelSubscriptionSale>(
-                      user_id_object, transaction->subscription_period_);
-                }
-                return nullptr;
-              }
-              if (transaction->reaction_) {
-                if (for_channel) {
-                  transaction->reaction_ = false;
-                  return td_api::make_object<td_api::starTransactionTypeChannelPaidReactionReceive>(
-                      user_id_object, get_message_id_object());
-                }
-                return nullptr;
-              }
-              SCOPE_EXIT {
-                bot_payload.clear();
-              };
-              if (transaction->premium_gift_months_ > 0 && is_purchase) {
-                SCOPE_EXIT {
-                  transaction->premium_gift_months_ = 0;
-                  product_info = nullptr;
-                };
-                if (for_user || for_bot) {
-                  return td_api::make_object<td_api::starTransactionTypePremiumPurchase>(
-                      user_id_object, transaction->premium_gift_months_,
-                      td_->stickers_manager_->get_premium_gift_sticker_object(transaction->premium_gift_months_, 0));
-                }
-              }
-              if (product_info != nullptr) {
-                if (is_purchase) {
-                  if (for_user) {
-                    return td_api::make_object<td_api::starTransactionTypeBotInvoicePurchase>(user_id_object,
-                                                                                              std::move(product_info));
-                  }
-                } else {
-                  if (for_bot) {
-                    return td_api::make_object<td_api::starTransactionTypeBotInvoiceSale>(
-                        user_id_object, std::move(product_info), bot_payload, std::move(affiliate));
-                  }
-                }
-                return nullptr;
-              }
-              if (!transaction->extended_media_.empty() || is_refund || for_bot) {  // TODO
-                if (is_purchase) {
-                  if (for_user) {
-                    return td_api::make_object<td_api::starTransactionTypeBotPaidMediaPurchase>(
-                        user_id_object, get_paid_media_object(dialog_id));
-                  }
-                } else {
-                  if (for_bot) {
-                    return td_api::make_object<td_api::starTransactionTypeBotPaidMediaSale>(
-                        user_id_object, get_paid_media_object(dialog_id_), bot_payload, std::move(affiliate));
-                  } else if (for_channel) {
-                    return td_api::make_object<td_api::starTransactionTypeChannelPaidMediaSale>(
-                        user_id_object, get_message_id_object(), get_paid_media_object(dialog_id_));
-                  }
-                }
-                return nullptr;
-              }
-              return nullptr;
-            }
-
-            // partner isn't a user now
-            td_->dialog_manager_->force_create_dialog(dialog_id, "starsTransactionPeer", true);
-            auto chat_id = td_->dialog_manager_->get_chat_id_object(dialog_id, "starsTransactionPeer");
-            if (transaction->stargift_ != nullptr) {
-              auto gift = StarGift(td_, std::move(transaction->stargift_), true);
-              transaction->stargift_ = nullptr;
-              if (!gift.is_valid()) {
-                return nullptr;
-              }
-              td_->star_gift_manager_->on_get_star_gift(gift, true);
-              if (is_purchase) {
-                if (gift.is_unique()) {
-                  if (!transaction->stargift_upgrade_) {
-                    if (for_user) {
-                      return td_api::make_object<td_api::starTransactionTypeGiftTransfer>(
-                          get_message_sender_object(td_, UserId(), dialog_id, "starTransactionTypeGiftTransfer"),
-                          gift.get_upgraded_gift_object(td_));
-                    }
-                  }
-                } else {
-                  if (for_user || for_bot) {
-                    return td_api::make_object<td_api::starTransactionTypeGiftPurchase>(
-                        get_message_sender_object(td_, UserId(), dialog_id, "starTransactionTypeGiftPurchase"),
-                        gift.get_gift_object(td_));
-                  }
-                }
-              }
-              return nullptr;
-            }
-            if (transaction->giveaway_post_id_ > 0) {
-              if (for_user && dialog_id.get_type() == DialogType::Channel) {
-                SCOPE_EXIT {
-                  transaction->giveaway_post_id_ = 0;
-                };
-                return td_api::make_object<td_api::starTransactionTypeGiveawayDeposit>(
-                    chat_id, MessageId(ServerMessageId(transaction->giveaway_post_id_)).get());
-              }
-              return nullptr;
-            }
-            if (transaction->subscription_period_ > 0) {
-              if (td_->dialog_manager_->is_broadcast_channel(dialog_id) && for_user) {
-                SCOPE_EXIT {
-                  transaction->subscription_period_ = 0;
-                };
-                return td_api::make_object<td_api::starTransactionTypeChannelSubscriptionPurchase>(
-                    chat_id, transaction->subscription_period_);
-              }
-              return nullptr;
-            }
-            if (transaction->reaction_) {
-              if (td_->dialog_manager_->is_broadcast_channel(dialog_id) && for_user) {
-                transaction->reaction_ = false;
-                return td_api::make_object<td_api::starTransactionTypeChannelPaidReactionSend>(chat_id,
-                                                                                               get_message_id_object());
-              }
-              return nullptr;
-            }
-            if (!transaction->extended_media_.empty() || is_refund) {  // TODO
-              if (td_->dialog_manager_->is_broadcast_channel(dialog_id) && for_user) {
-                return td_api::make_object<td_api::starTransactionTypeChannelPaidMediaPurchase>(
-                    chat_id, get_message_id_object(), get_paid_media_object(dialog_id));
-              }
-              return nullptr;
-            }
-            return nullptr;
-          }
-          case telegram_api::starsTransactionPeerAds::ID:
-            if (for_bot || for_channel) {
-              return td_api::make_object<td_api::starTransactionTypeTelegramAdsWithdrawal>();
-            }
-            return nullptr;
-          case telegram_api::starsTransactionPeerAPI::ID: {
-            if (for_bot) {
-              SCOPE_EXIT {
-                transaction->floodskip_number_ = 0;
-              };
-              return td_api::make_object<td_api::starTransactionTypeTelegramApiUsage>(transaction->floodskip_number_);
-            }
-            return nullptr;
-          }
-          default:
-            UNREACHABLE();
-            return nullptr;
-        }
-      }();
-      if (type == nullptr) {
-        LOG(ERROR) << "Receive unsupported Star transaction in " << dialog_id_ << ": " << to_string(transaction);
-        type = td_api::make_object<td_api::starTransactionTypeUnsupported>();
-      }
-      auto star_transaction =
-          td_api::make_object<td_api::starTransaction>(transaction->id_, transaction_amount.get_star_amount_object(),
-                                                       is_refund, transaction->date_, std::move(type));
-      if (star_transaction->type_->get_id() != td_api::starTransactionTypeUnsupported::ID) {
-        if (product_info != nullptr) {
-          LOG(ERROR) << "Receive product info with " << to_string(star_transaction);
-        }
-        if (!bot_payload.empty()) {
-          LOG(ERROR) << "Receive bot payload with " << to_string(star_transaction);
-        }
-        if (transaction->transaction_date_ || !transaction->transaction_url_.empty() || transaction->pending_ ||
-            transaction->failed_) {
-          LOG(ERROR) << "Receive withdrawal state with " << to_string(star_transaction);
-        }
-        if (transaction->msg_id_ != 0) {
-          LOG(ERROR) << "Receive message identifier with " << to_string(star_transaction);
-        }
-        if (transaction->gift_) {
-          LOG(ERROR) << "Receive gift with " << to_string(star_transaction);
-        }
-        if (transaction->subscription_period_ != 0) {
-          LOG(ERROR) << "Receive subscription period with " << to_string(star_transaction);
-        }
-        if (transaction->reaction_) {
-          LOG(ERROR) << "Receive reaction with " << to_string(star_transaction);
-        }
-        if (!transaction->extended_media_.empty()) {
-          LOG(ERROR) << "Receive paid media with " << to_string(star_transaction);
-        }
-        if (transaction->giveaway_post_id_ != 0) {
-          LOG(ERROR) << "Receive giveaway message with " << to_string(star_transaction);
-        }
-        if (transaction->stargift_ != nullptr) {
-          LOG(ERROR) << "Receive gift with " << to_string(star_transaction);
-        }
-        if (transaction->floodskip_number_ != 0) {
-          LOG(ERROR) << "Receive API payment with " << to_string(star_transaction);
-        }
-        if (affiliate != nullptr) {
-          LOG(ERROR) << "Receive affiliate with " << to_string(star_transaction);
-        }
-        if (commission_per_mille != 0) {
-          LOG(ERROR) << "Receive commission with " << to_string(star_transaction);
-        }
-        if (transaction->stargift_upgrade_) {
-          LOG(ERROR) << "Receive gift upgrade with " << to_string(star_transaction);
-        }
-        if (transaction->paid_messages_) {
-          LOG(ERROR) << "Receive paid messages with " << to_string(star_transaction);
-        }
-        if (transaction->premium_gift_months_) {
-          LOG(ERROR) << "Receive Telegram Premium purchase with " << to_string(star_transaction);
-        }
-        if (transaction->business_transfer_) {
-          LOG(ERROR) << "Receive business bot transfer with " << to_string(star_transaction);
-        }
-      }
-      if (!file_ids.empty()) {
-        auto file_source_id =
-            td_->star_manager_->get_star_transaction_file_source_id(dialog_id_, transaction->id_, is_refund);
-        for (auto file_id : file_ids) {
-          td_->file_manager_->add_file_source(file_id, file_source_id, "GetStarsTransactionsQuery");
-        }
-      }
-      transactions.push_back(std::move(star_transaction));
-    }
-
-    auto star_amount = StarAmount(std::move(result->balance_), true);
-    if (dialog_id_ == td_->dialog_manager_->get_my_dialog_id()) {
-      td_->star_manager_->on_update_owned_star_amount(star_amount);
-    }
-    promise_.set_value(td_api::make_object<td_api::starTransactions>(star_amount.get_star_amount_object(),
-                                                                     std::move(transactions), result->next_offset_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStarsTransactionsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStarsSubscriptionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::starSubscriptions>> promise_;
-
- public:
-  explicit GetStarsSubscriptionsQuery(Promise<td_api::object_ptr<td_api::starSubscriptions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(bool only_expiring, const string &offset) {
-    int32 flags = 0;
-    if (only_expiring) {
-      flags |= telegram_api::payments_getStarsSubscriptions::MISSING_BALANCE_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::payments_getStarsSubscriptions(
-        flags, false /*ignored*/, telegram_api::make_object<telegram_api::inputPeerSelf>(), offset)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsSubscriptions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetStarsSubscriptionsQuery: " << to_string(result);
-
-    td_->user_manager_->on_get_users(std::move(result->users_), "GetStarsSubscriptionsQuery");
-    td_->chat_manager_->on_get_chats(std::move(result->chats_), "GetStarsSubscriptionsQuery");
-
-    vector<td_api::object_ptr<td_api::starSubscription>> subscriptions;
-    for (auto &subscription : result->subscriptions_) {
-      StarSubscription star_subscription(td_, std::move(subscription));
-      if (!star_subscription.is_valid()) {
-        LOG(ERROR) << "Receive invalid subscription " << star_subscription;
-      } else {
-        subscriptions.push_back(star_subscription.get_star_subscription_object(td_));
-      }
-    }
-
-    auto star_amount = StarAmount(std::move(result->balance_), true);
-    td_->star_manager_->on_update_owned_star_amount(star_amount);
-    promise_.set_value(td_api::make_object<td_api::starSubscriptions>(
-        star_amount.get_star_amount_object(), std::move(subscriptions),
-        StarManager::get_star_count(result->subscriptions_missing_balance_), result->subscriptions_next_offset_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ChangeStarsSubscriptionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ChangeStarsSubscriptionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &subscription_id, bool is_canceled) {
-    send_query(G()->net_query_creator().create(telegram_api::payments_changeStarsSubscription(
-        telegram_api::payments_changeStarsSubscription::CANCELED_MASK,
-        telegram_api::make_object<telegram_api::inputPeerSelf>(), subscription_id, is_canceled)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_changeStarsSubscription>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class BotCancelStarsSubscriptionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit BotCancelStarsSubscriptionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> &&input_user, const string &telegram_payment_charge_id,
-            bool is_canceled) {
-    int32 flags = 0;
-    if (!is_canceled) {
-      flags |= telegram_api::payments_botCancelStarsSubscription::RESTORE_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::payments_botCancelStarsSubscription(
-        flags, false /*ignored*/, std::move(input_user), telegram_payment_charge_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_botCancelStarsSubscription>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class FulfillStarsSubscriptionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit FulfillStarsSubscriptionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &subscription_id) {
-    send_query(G()->net_query_creator().create(telegram_api::payments_fulfillStarsSubscription(
-        telegram_api::make_object<telegram_api::inputPeerSelf>(), subscription_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_fulfillStarsSubscription>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RefundStarsChargeQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit RefundStarsChargeQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> &&input_user, const string &telegram_payment_charge_id) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_refundStarsCharge(std::move(input_user), telegram_payment_charge_id)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_refundStarsCharge>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for RefundStarsChargeQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-static td_api::object_ptr<td_api::starRevenueStatus> convert_stars_revenue_status(
-    telegram_api::object_ptr<telegram_api::starsRevenueStatus> obj) {
-  CHECK(obj != nullptr);
-  int32 next_withdrawal_in = 0;
-  if (obj->withdrawal_enabled_ && obj->next_withdrawal_at_ > 0) {
-    next_withdrawal_in = max(obj->next_withdrawal_at_ - G()->unix_time(), 1);
-  }
-  return td_api::make_object<td_api::starRevenueStatus>(
-      StarAmount(std::move(obj->overall_revenue_), true).get_star_amount_object(),
-      StarAmount(std::move(obj->current_balance_), true).get_star_amount_object(),
-      StarAmount(std::move(obj->available_balance_), true).get_star_amount_object(), obj->withdrawal_enabled_,
-      next_withdrawal_in);
-}
-
-class GetStarsRevenueStatsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::starRevenueStatistics>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetStarsRevenueStatsQuery(Promise<td_api::object_ptr<td_api::starRevenueStatistics>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool is_dark) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no access to the chat"));
-    }
-
-    int32 flags = 0;
-    if (is_dark) {
-      flags |= telegram_api::payments_getStarsRevenueStats::DARK_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::payments_getStarsRevenueStats(flags, false /*ignored*/, std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsRevenueStats>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetStarsRevenueStatsQuery: " << to_string(ptr);
-    promise_.set_value(td_api::make_object<td_api::starRevenueStatistics>(
-        StatisticsManager::convert_stats_graph(std::move(ptr->revenue_graph_)),
-        convert_stars_revenue_status(std::move(ptr->status_)),
-        ptr->usd_rate_ > 0 ? clamp(ptr->usd_rate_ * 1e2, 1e-18, 1e18) : 1.3));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStarsRevenueStatsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStarsRevenueWithdrawalUrlQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetStarsRevenueWithdrawalUrlQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int64 star_count,
-            telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no access to the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::payments_getStarsRevenueWithdrawalUrl(
-        std::move(input_peer), star_count, std::move(input_check_password))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsRevenueWithdrawalUrl>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(std::move(result_ptr.ok_ref()->url_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStarsRevenueWithdrawalUrlQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStarsRevenueAdsAccountUrlQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetStarsRevenueAdsAccountUrlQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Have no access to the chat"));
-    }
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::payments_getStarsRevenueAdsAccountUrl(std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::payments_getStarsRevenueAdsAccountUrl>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(std::move(result_ptr.ok_ref()->url_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStarsRevenueAdsAccountUrlQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPaidMessageRevenueQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::starCount>> promise_;
-
- public:
-  explicit GetPaidMessageRevenueQuery(Promise<td_api::object_ptr<td_api::starCount>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> &&input_user) {
-    send_query(G()->net_query_creator().create(telegram_api::account_getPaidMessagesRevenue(std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getPaidMessagesRevenue>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetPaidMessageRevenueQuery: " << to_string(ptr);
-    promise_.set_value(td_api::make_object<td_api::starCount>(StarManager::get_star_count(ptr->stars_amount_)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-StarManager::StarManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void StarManager::start_up() {
-  if (td_->auth_manager_->is_bot() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  auto owned_star_count = G()->td_db()->get_binlog_pmc()->get("owned_star_count");
-  if (!owned_star_count.empty()) {
-    is_owned_star_count_inited_ = true;
-    auto star_count = split(owned_star_count);
-    owned_star_count_ = to_integer<int64>(star_count.first);
-    owned_nanostar_count_ = to_integer<int32>(star_count.second);
-    sent_star_count_ = owned_star_count_;
-    sent_nanostar_count_ = owned_nanostar_count_;
-    send_closure(G()->td(), &Td::send_update, get_update_owned_star_count_object());
-  }
-}
-
-void StarManager::tear_down() {
-  parent_.reset();
-}
-
-td_api::object_ptr<td_api::updateOwnedStarCount> StarManager::get_update_owned_star_count_object() const {
-  CHECK(is_owned_star_count_inited_);
-  // sent_star_count_ can be negative as well as owned_star_count_
-  return td_api::make_object<td_api::updateOwnedStarCount>(
-      td_api::make_object<td_api::starAmount>(sent_star_count_, sent_nanostar_count_));
-}
-
-void StarManager::on_update_owned_star_amount(StarAmount star_amount) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  auto star_count = star_amount.get_star_count();
-  auto nanostar_count = star_amount.get_nanostar_count();
-  if (is_owned_star_count_inited_ && star_count == owned_star_count_ && nanostar_count == owned_nanostar_count_) {
-    return;
-  }
-  is_owned_star_count_inited_ = true;
-  owned_star_count_ = star_count;
-  owned_nanostar_count_ = nanostar_count;
-  if (owned_star_count_ + pending_owned_star_count_ != sent_star_count_ ||
-      owned_nanostar_count_ != sent_nanostar_count_) {
-    sent_star_count_ = owned_star_count_ + pending_owned_star_count_;
-    sent_nanostar_count_ = owned_nanostar_count_;
-    send_closure(G()->td(), &Td::send_update, get_update_owned_star_count_object());
-  }
-  G()->td_db()->get_binlog_pmc()->set("owned_star_count", PSTRING()
-                                                              << owned_star_count_ << ' ' << owned_nanostar_count_);
-}
-
-void StarManager::add_pending_owned_star_count(int64 star_count, bool move_to_owned) {
-  if (star_count == 0) {
-    return;
-  }
-  pending_owned_star_count_ += star_count;
-  if (is_owned_star_count_inited_) {
-    if (move_to_owned) {
-      owned_star_count_ -= star_count;
-      G()->td_db()->get_binlog_pmc()->set("owned_star_count", PSTRING()
-                                                                  << owned_star_count_ << ' ' << owned_nanostar_count_);
-    } else {
-      sent_star_count_ += star_count;
-      send_closure(G()->td(), &Td::send_update, get_update_owned_star_count_object());
-    }
-  }
-}
-
-bool StarManager::has_owned_star_count(int64 star_count) const {
-  if (star_count <= 0 || !is_owned_star_count_inited_) {
-    return true;
-  }
-  return sent_star_count_ >= star_count;
-}
-
-Status StarManager::can_manage_stars(DialogId dialog_id, bool allow_self) const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      auto user_id = dialog_id.get_user_id();
-      if (allow_self && user_id == td_->user_manager_->get_my_id()) {
-        break;
-      }
-      TRY_RESULT(bot_data, td_->user_manager_->get_bot_data(user_id));
-      if (!bot_data.can_be_edited) {
-        return Status::Error(400, "The bot isn't owned");
-      }
-      break;
-    }
-    case DialogType::Channel: {
-      auto channel_id = dialog_id.get_channel_id();
-      if (!td_->chat_manager_->get_channel_permissions(channel_id).is_creator() && !allow_self) {
-        return Status::Error(400, "Not enough rights");
-      }
-      break;
-    }
-    default:
-      return Status::Error(400, "Unallowed chat specified");
-  }
-  return Status::OK();
-}
-
-void StarManager::get_star_payment_options(Promise<td_api::object_ptr<td_api::starPaymentOptions>> &&promise) {
-  td_->create_handler<GetStarsTopupOptionsQuery>(std::move(promise))->send();
-}
-
-void StarManager::get_star_gift_payment_options(UserId user_id,
-                                                Promise<td_api::object_ptr<td_api::starPaymentOptions>> &&promise) {
-  if (user_id == UserId()) {
-    td_->create_handler<GetStarsGiftOptionsQuery>(std::move(promise))->send(nullptr);
-    return;
-  }
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-  td_->create_handler<GetStarsGiftOptionsQuery>(std::move(promise))->send(std::move(input_user));
-}
-
-void StarManager::get_star_giveaway_payment_options(
-    Promise<td_api::object_ptr<td_api::starGiveawayPaymentOptions>> &&promise) {
-  td_->create_handler<GetStarsGiveawayOptionsQuery>(std::move(promise))->send();
-}
-
-void StarManager::get_star_transactions(td_api::object_ptr<td_api::MessageSender> owner_id,
-                                        const string &subscription_id, const string &offset, int32 limit,
-                                        td_api::object_ptr<td_api::StarTransactionDirection> &&direction,
-                                        Promise<td_api::object_ptr<td_api::starTransactions>> &&promise) {
-  TRY_RESULT_PROMISE(promise, dialog_id, get_message_sender_dialog_id(td_, owner_id, true, false));
-  TRY_STATUS_PROMISE(promise, can_manage_stars(dialog_id, true));
-  if (limit < 0) {
-    return promise.set_error(Status::Error(400, "Limit must be non-negative"));
-  }
-  td_->stickers_manager_->load_premium_gift_sticker_set(PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_id, subscription_id, offset, limit, direction = std::move(direction),
-       promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &StarManager::do_get_star_transactions, dialog_id, subscription_id, offset, limit,
-                       std::move(direction), std::move(promise));
-        }
-      }));
-}
-
-void StarManager::do_get_star_transactions(DialogId dialog_id, const string &subscription_id, const string &offset,
-                                           int32 limit,
-                                           td_api::object_ptr<td_api::StarTransactionDirection> &&direction,
-                                           Promise<td_api::object_ptr<td_api::starTransactions>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_STATUS_PROMISE(promise, can_manage_stars(dialog_id, true));
-
-  td_->create_handler<GetStarsTransactionsQuery>(std::move(promise))
-      ->send(dialog_id, subscription_id, offset, limit, std::move(direction));
-}
-
-void StarManager::get_star_subscriptions(bool only_expiring, const string &offset,
-                                         Promise<td_api::object_ptr<td_api::starSubscriptions>> &&promise) {
-  td_->create_handler<GetStarsSubscriptionsQuery>(std::move(promise))->send(only_expiring, offset);
-}
-
-void StarManager::edit_star_subscription(const string &subscription_id, bool is_canceled, Promise<Unit> &&promise) {
-  td_->create_handler<ChangeStarsSubscriptionQuery>(std::move(promise))->send(subscription_id, is_canceled);
-}
-
-void StarManager::edit_user_star_subscription(UserId user_id, const string &telegram_payment_charge_id,
-                                              bool is_canceled, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-  td_->create_handler<BotCancelStarsSubscriptionQuery>(std::move(promise))
-      ->send(std::move(input_user), telegram_payment_charge_id, is_canceled);
-}
-
-void StarManager::reuse_star_subscription(const string &subscription_id, Promise<Unit> &&promise) {
-  td_->create_handler<FulfillStarsSubscriptionQuery>(std::move(promise))->send(subscription_id);
-}
-
-void StarManager::refund_star_payment(UserId user_id, const string &telegram_payment_charge_id,
-                                      Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-  td_->create_handler<RefundStarsChargeQuery>(std::move(promise))
-      ->send(std::move(input_user), telegram_payment_charge_id);
-}
-
-void StarManager::get_star_revenue_statistics(const td_api::object_ptr<td_api::MessageSender> &owner_id, bool is_dark,
-                                              Promise<td_api::object_ptr<td_api::starRevenueStatistics>> &&promise) {
-  TRY_RESULT_PROMISE(promise, dialog_id, get_message_sender_dialog_id(td_, owner_id, true, false));
-  TRY_STATUS_PROMISE(promise, can_manage_stars(dialog_id, true));
-  td_->create_handler<GetStarsRevenueStatsQuery>(std::move(promise))->send(dialog_id, is_dark);
-}
-
-void StarManager::get_star_withdrawal_url(const td_api::object_ptr<td_api::MessageSender> &owner_id, int64 star_count,
-                                          const string &password, Promise<string> &&promise) {
-  TRY_RESULT_PROMISE(promise, dialog_id, get_message_sender_dialog_id(td_, owner_id, true, false));
-  TRY_STATUS_PROMISE(promise, can_manage_stars(dialog_id, true));
-  if (password.empty()) {
-    return promise.set_error(Status::Error(400, "PASSWORD_HASH_INVALID"));
-  }
-  send_closure(
-      td_->password_manager_, &PasswordManager::get_input_check_password_srp, password,
-      PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, star_count, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP>> result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &StarManager::send_get_star_withdrawal_url_query, dialog_id, star_count,
-                     result.move_as_ok(), std::move(promise));
-      }));
-}
-
-void StarManager::send_get_star_withdrawal_url_query(
-    DialogId dialog_id, int64 star_count,
-    telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password, Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  td_->create_handler<GetStarsRevenueWithdrawalUrlQuery>(std::move(promise))
-      ->send(dialog_id, star_count, std::move(input_check_password));
-}
-
-void StarManager::get_star_ad_account_url(const td_api::object_ptr<td_api::MessageSender> &owner_id,
-                                          Promise<string> &&promise) {
-  TRY_RESULT_PROMISE(promise, dialog_id, get_message_sender_dialog_id(td_, owner_id, true, false));
-  TRY_STATUS_PROMISE(promise, can_manage_stars(dialog_id));
-  td_->create_handler<GetStarsRevenueAdsAccountUrlQuery>(std::move(promise))->send(dialog_id);
-}
-
-void StarManager::get_paid_message_revenue(UserId user_id, Promise<td_api::object_ptr<td_api::starCount>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-  td_->create_handler<GetPaidMessageRevenueQuery>(std::move(promise))->send(std::move(input_user));
-}
-
-void StarManager::reload_star_transaction(DialogId dialog_id, const string &transaction_id, bool is_refund,
-                                          Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, can_manage_stars(dialog_id, true));
-  auto query_promise = PromiseCreator::lambda(
-      [promise = std::move(promise)](Result<td_api::object_ptr<td_api::starTransactions>> r_transactions) mutable {
-        if (r_transactions.is_error()) {
-          promise.set_error(r_transactions.move_as_error());
-        } else {
-          promise.set_value(Unit());
-        }
-      });
-  td_->create_handler<GetStarsTransactionsQuery>(std::move(query_promise))->send(dialog_id, transaction_id, is_refund);
-}
-
-void StarManager::reload_owned_star_count() {
-  do_get_star_transactions(td_->dialog_manager_->get_my_dialog_id(), string(), string(), 1, nullptr, Auto());
-}
-
-void StarManager::on_update_stars_revenue_status(
-    telegram_api::object_ptr<telegram_api::updateStarsRevenueStatus> &&update) {
-  DialogId dialog_id(update->peer_);
-  if (can_manage_stars(dialog_id, true).is_error()) {
-    LOG(ERROR) << "Receive " << to_string(update);
-    return;
-  }
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateStarRevenueStatus>(
-                   get_message_sender_object(td_, dialog_id, "updateStarRevenueStatus"),
-                   convert_stars_revenue_status(std::move(update->status_))));
-}
-
-FileSourceId StarManager::get_star_transaction_file_source_id(DialogId dialog_id, const string &transaction_id,
-                                                              bool is_refund) {
-  if (!dialog_id.is_valid() || transaction_id.empty()) {
-    return FileSourceId();
-  }
-
-  auto &source_id = star_transaction_file_source_ids_[is_refund][dialog_id][transaction_id];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_star_transaction_file_source(dialog_id, transaction_id, is_refund);
-  }
-  VLOG(file_references) << "Return " << source_id << " for " << (is_refund ? "refund " : "") << "transaction "
-                        << transaction_id << " in " << dialog_id;
-  return source_id;
-}
-
-int64 StarManager::get_star_count(int64 amount, bool allow_negative) {
-  auto max_amount = static_cast<int64>(1) << 51;
-  if (amount < 0) {
-    if (!allow_negative) {
-      LOG(ERROR) << "Receive Telegram Star amount = " << amount;
-      return 0;
-    }
-    if (amount < -max_amount) {
-      LOG(ERROR) << "Receive Telegram Star amount = " << amount;
-      return -max_amount;
-    }
-  }
-  if (amount > max_amount) {
-    LOG(ERROR) << "Receive Telegram Star amount = " << amount;
-    return max_amount;
-  }
-  return amount;
-}
-
-int32 StarManager::get_nanostar_count(int64 &star_count, int32 nanostar_count) {
-  if (-1000000000 >= nanostar_count || nanostar_count >= 1000000000) {
-    LOG(ERROR) << "Receive " << star_count << " + " << nanostar_count << " Telegram Stars";
-    return nanostar_count;
-  }
-  if (star_count < 0 && nanostar_count > 0) {
-    LOG(ERROR) << "Receive " << star_count << " + " << nanostar_count << " Telegram Stars";
-    star_count++;
-    nanostar_count -= 1000000000;
-  }
-  if (star_count > 0 && nanostar_count < 0) {
-    LOG(ERROR) << "Receive " << star_count << " + " << nanostar_count << " Telegram Stars";
-    star_count--;
-    nanostar_count += 1000000000;
-  }
-  if (!(star_count < 0 && nanostar_count > 0) && !(star_count > 0 && nanostar_count < 0)) {
-    return nanostar_count;
-  }
-  LOG(ERROR) << "Receive " << star_count << " + " << nanostar_count << " Telegram Stars";
-  return 0;
-}
-
-int32 StarManager::get_months_by_star_count(int64 star_count) {
-  return star_count <= 1000 ? 3 : (star_count < 2500 ? 6 : 12);
-}
-
-void StarManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (is_owned_star_count_inited_) {
-    updates.push_back(get_update_owned_star_count_object());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarManager.h b/third-party/td/td/td/telegram/StarManager.h
deleted file mode 100644
index 1ef2ab20dc..0000000000
--- a/third-party/td/td/td/telegram/StarManager.h
+++ /dev/null
@@ -1,117 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/StarAmount.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class StarManager final : public Actor {
- public:
-  StarManager(Td *td, ActorShared<> parent);
-
-  void on_update_owned_star_amount(StarAmount star_amount);
-
-  void add_pending_owned_star_count(int64 star_count, bool move_to_owned);
-
-  bool has_owned_star_count(int64 star_count) const;
-
-  void get_star_payment_options(Promise<td_api::object_ptr<td_api::starPaymentOptions>> &&promise);
-
-  void get_star_gift_payment_options(UserId user_id, Promise<td_api::object_ptr<td_api::starPaymentOptions>> &&promise);
-
-  void get_star_giveaway_payment_options(Promise<td_api::object_ptr<td_api::starGiveawayPaymentOptions>> &&promise);
-
-  void get_star_transactions(td_api::object_ptr<td_api::MessageSender> owner_id, const string &subscription_id,
-                             const string &offset, int32 limit,
-                             td_api::object_ptr<td_api::StarTransactionDirection> &&direction,
-                             Promise<td_api::object_ptr<td_api::starTransactions>> &&promise);
-
-  void get_star_subscriptions(bool only_expiring, const string &offset,
-                              Promise<td_api::object_ptr<td_api::starSubscriptions>> &&promise);
-
-  void edit_star_subscription(const string &subscription_id, bool is_canceled, Promise<Unit> &&promise);
-
-  void edit_user_star_subscription(UserId user_id, const string &telegram_payment_charge_id, bool is_canceled,
-                                   Promise<Unit> &&promise);
-
-  void reuse_star_subscription(const string &subscription_id, Promise<Unit> &&promise);
-
-  void refund_star_payment(UserId user_id, const string &telegram_payment_charge_id, Promise<Unit> &&promise);
-
-  void get_star_revenue_statistics(const td_api::object_ptr<td_api::MessageSender> &owner_id, bool is_dark,
-                                   Promise<td_api::object_ptr<td_api::starRevenueStatistics>> &&promise);
-
-  void get_star_withdrawal_url(const td_api::object_ptr<td_api::MessageSender> &owner_id, int64 star_count,
-                               const string &password, Promise<string> &&promise);
-
-  void get_star_ad_account_url(const td_api::object_ptr<td_api::MessageSender> &owner_id, Promise<string> &&promise);
-
-  void get_paid_message_revenue(UserId user_id, Promise<td_api::object_ptr<td_api::starCount>> &&promise);
-
-  void reload_star_transaction(DialogId dialog_id, const string &transaction_id, bool is_refund,
-                               Promise<Unit> &&promise);
-
-  void reload_owned_star_count();
-
-  void on_update_stars_revenue_status(telegram_api::object_ptr<telegram_api::updateStarsRevenueStatus> &&update);
-
-  FileSourceId get_star_transaction_file_source_id(DialogId dialog_id, const string &transaction_id, bool is_refund);
-
-  static int64 get_star_count(int64 amount, bool allow_negative = false);
-
-  static int32 get_nanostar_count(int64 &star_count, int32 nanostar_count);
-
-  static int32 get_months_by_star_count(int64 star_count);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  void start_up() final;
-
-  void tear_down() final;
-
-  Status can_manage_stars(DialogId dialog_id, bool allow_self = false) const;
-
-  void do_get_star_transactions(DialogId dialog_id, const string &subscription_id, const string &offset, int32 limit,
-                                td_api::object_ptr<td_api::StarTransactionDirection> &&direction,
-                                Promise<td_api::object_ptr<td_api::starTransactions>> &&promise);
-
-  void send_get_star_withdrawal_url_query(
-      DialogId dialog_id, int64 star_count,
-      telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password, Promise<string> &&promise);
-
-  td_api::object_ptr<td_api::updateOwnedStarCount> get_update_owned_star_count_object() const;
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  bool is_owned_star_count_inited_ = false;
-  int64 owned_star_count_ = 0;
-  int32 owned_nanostar_count_ = 0;
-  int64 pending_owned_star_count_ = 0;
-  int64 sent_star_count_ = 0;
-  int32 sent_nanostar_count_ = 0;
-
-  FlatHashMap<DialogId, FlatHashMap<string, FileSourceId>, DialogIdHash> star_transaction_file_source_ids_[2];
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarSubscription.cpp b/third-party/td/td/td/telegram/StarSubscription.cpp
deleted file mode 100644
index e70a859219..0000000000
--- a/third-party/td/td/td/telegram/StarSubscription.cpp
+++ /dev/null
@@ -1,67 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarSubscription.h"
-
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-StarSubscription::StarSubscription(Td *td, telegram_api::object_ptr<telegram_api::starsSubscription> &&subscription)
-    : id_(std::move(subscription->id_))
-    , dialog_id_(subscription->peer_)
-    , until_date_(subscription->until_date_)
-    , can_reuse_(subscription->can_refulfill_)
-    , is_canceled_(subscription->canceled_)
-    , is_bot_canceled_(subscription->bot_canceled_)
-    , missing_balance_(StarManager::get_star_count(subscription->missing_balance_))
-    , invite_hash_(std::move(subscription->chat_invite_hash_))
-    , title_(std::move(subscription->title_))
-    , photo_(get_web_document_photo(td->file_manager_.get(), std::move(subscription->photo_), DialogId()))
-    , invoice_slug_(std::move(subscription->invoice_slug_))
-    , pricing_(std::move(subscription->pricing_)) {
-}
-
-td_api::object_ptr<td_api::starSubscription> StarSubscription::get_star_subscription_object(Td *td) const {
-  td->dialog_manager_->force_create_dialog(dialog_id_, "starSubscription", true);
-  td_api::object_ptr<td_api::StarSubscriptionType> type;
-  switch (dialog_id_.get_type()) {
-    case DialogType::User:
-      type = td_api::make_object<td_api::starSubscriptionTypeBot>(
-          is_bot_canceled_, title_, get_photo_object(td->file_manager_.get(), photo_),
-          LinkManager::get_internal_link(td_api::make_object<td_api::internalLinkTypeInvoice>(invoice_slug_), false)
-              .move_as_ok());
-      break;
-    case DialogType::Channel:
-      type = td_api::make_object<td_api::starSubscriptionTypeChannel>(
-          can_reuse_, LinkManager::get_dialog_invite_link(invite_hash_, false));
-      break;
-    case DialogType::Chat:
-      LOG(ERROR) << "Receive subscription for " << dialog_id_;
-      type = td_api::make_object<td_api::starSubscriptionTypeChannel>(false, string());
-      break;
-    case DialogType::SecretChat:
-    default:
-      UNREACHABLE();
-  }
-  return td_api::make_object<td_api::starSubscription>(
-      id_, td->dialog_manager_->get_chat_id_object(dialog_id_, "starSubscription"), until_date_, is_canceled_,
-      missing_balance_, pricing_.get_star_subscription_pricing_object(), std::move(type));
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarSubscription &subscription) {
-  return string_builder << (subscription.is_canceled_ ? "canceled " : "")
-                        << (subscription.missing_balance_ ? "expiring " : "") << "subscription " << subscription.id_
-                        << " to " << subscription.dialog_id_ << '/' << subscription.invite_hash_ << " until "
-                        << subscription.until_date_ << " for " << subscription.pricing_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarSubscription.h b/third-party/td/td/td/telegram/StarSubscription.h
deleted file mode 100644
index 7ce3e39e6a..0000000000
--- a/third-party/td/td/td/telegram/StarSubscription.h
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/StarSubscriptionPricing.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class StarSubscription {
-  string id_;
-  DialogId dialog_id_;
-  int32 until_date_ = 0;
-  bool can_reuse_ = false;
-  bool is_canceled_ = false;
-  bool is_bot_canceled_ = false;
-  bool missing_balance_ = false;
-  string invite_hash_;
-  string title_;
-  Photo photo_;
-  string invoice_slug_;
-  StarSubscriptionPricing pricing_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StarSubscription &subscription);
-
- public:
-  StarSubscription() = default;
-
-  StarSubscription(Td *td, telegram_api::object_ptr<telegram_api::starsSubscription> &&subscription);
-
-  bool is_valid() const {
-    return !id_.empty() && dialog_id_.is_valid() && until_date_ >= 0 && !pricing_.is_empty();
-  }
-
-  td_api::object_ptr<td_api::starSubscription> get_star_subscription_object(Td *td) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarSubscription &subscription);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarSubscriptionPricing.cpp b/third-party/td/td/td/telegram/StarSubscriptionPricing.cpp
deleted file mode 100644
index d843f92583..0000000000
--- a/third-party/td/td/td/telegram/StarSubscriptionPricing.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StarSubscriptionPricing.h"
-
-#include "td/telegram/StarManager.h"
-
-namespace td {
-
-StarSubscriptionPricing::StarSubscriptionPricing(
-    telegram_api::object_ptr<telegram_api::starsSubscriptionPricing> &&pricing) {
-  if (pricing != nullptr) {
-    period_ = pricing->period_;
-    amount_ = StarManager::get_star_count(pricing->amount_);
-  }
-}
-
-StarSubscriptionPricing::StarSubscriptionPricing(td_api::object_ptr<td_api::starSubscriptionPricing> &&pricing) {
-  if (pricing != nullptr) {
-    period_ = pricing->period_;
-    amount_ = pricing->star_count_;
-    if (amount_ > 1000000000) {
-      amount_ = 0;
-    }
-  }
-}
-
-td_api::object_ptr<td_api::starSubscriptionPricing> StarSubscriptionPricing::get_star_subscription_pricing_object()
-    const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::starSubscriptionPricing>(period_, amount_);
-}
-
-telegram_api::object_ptr<telegram_api::starsSubscriptionPricing>
-StarSubscriptionPricing::get_input_stars_subscription_pricing() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return telegram_api::make_object<telegram_api::starsSubscriptionPricing>(period_, amount_);
-}
-
-bool operator==(const StarSubscriptionPricing &lhs, const StarSubscriptionPricing &rhs) {
-  return lhs.period_ == rhs.period_ && lhs.amount_ == rhs.amount_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarSubscriptionPricing &pricing) {
-  if (pricing.is_empty()) {
-    return string_builder << "no subscription";
-  }
-  return string_builder << "subscription for " << pricing.period_ << " days for " << pricing.amount_ << " stars";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarSubscriptionPricing.h b/third-party/td/td/td/telegram/StarSubscriptionPricing.h
deleted file mode 100644
index 95ec707422..0000000000
--- a/third-party/td/td/td/telegram/StarSubscriptionPricing.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class StarSubscriptionPricing {
-  int32 period_ = 0;
-  int64 amount_ = 0;
-
-  friend bool operator==(const StarSubscriptionPricing &lhs, const StarSubscriptionPricing &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StarSubscriptionPricing &pricing);
-
- public:
-  StarSubscriptionPricing() = default;
-
-  explicit StarSubscriptionPricing(telegram_api::object_ptr<telegram_api::starsSubscriptionPricing> &&pricing);
-
-  explicit StarSubscriptionPricing(td_api::object_ptr<td_api::starSubscriptionPricing> &&pricing);
-
-  bool is_empty() const {
-    return period_ <= 0 || amount_ <= 0;
-  }
-
-  td_api::object_ptr<td_api::starSubscriptionPricing> get_star_subscription_pricing_object() const;
-
-  telegram_api::object_ptr<telegram_api::starsSubscriptionPricing> get_input_stars_subscription_pricing() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StarSubscriptionPricing &lhs, const StarSubscriptionPricing &rhs);
-
-inline bool operator!=(const StarSubscriptionPricing &lhs, const StarSubscriptionPricing &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StarSubscriptionPricing &pricing);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StarSubscriptionPricing.hpp b/third-party/td/td/td/telegram/StarSubscriptionPricing.hpp
deleted file mode 100644
index 516fdffb1e..0000000000
--- a/third-party/td/td/td/telegram/StarSubscriptionPricing.hpp
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StarSubscriptionPricing.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StarSubscriptionPricing::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(period_, storer);
-  td::store(amount_, storer);
-}
-
-template <class ParserT>
-void StarSubscriptionPricing::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(period_, parser);
-  td::parse(amount_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StateManager.cpp b/third-party/td/td/td/telegram/StateManager.cpp
deleted file mode 100644
index ad3bac997c..0000000000
--- a/third-party/td/td/td/telegram/StateManager.cpp
+++ /dev/null
@@ -1,177 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StateManager.h"
-
-#include "td/telegram/Global.h"
-
-#include "td/actor/PromiseFuture.h"
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-void StateManager::on_synchronized(bool is_synchronized) {
-  if (sync_flag_ != is_synchronized) {
-    sync_flag_ = is_synchronized;
-    loop();
-  }
-  if (sync_flag_ && !was_sync_) {
-    was_sync_ = true;
-    set_promises(wait_first_sync_);
-  }
-}
-
-void StateManager::on_network_updated() {
-  do_on_network(network_type_, true /*inc_generation*/);
-}
-
-void StateManager::on_network(NetType new_network_type) {
-  do_on_network(new_network_type, true /*inc_generation*/);
-}
-
-void StateManager::do_on_network(NetType new_network_type, bool inc_generation) {
-  bool new_network_flag = new_network_type != NetType::None;
-  if (network_flag_ != new_network_flag) {
-    network_flag_ = new_network_flag;
-    loop();
-  }
-  network_type_ = new_network_type;
-  if (inc_generation) {
-    network_generation_++;
-  }
-  notify_flag(Flag::Network);
-}
-
-void StateManager::on_online(bool is_online) {
-  online_flag_ = is_online;
-  notify_flag(Flag::Online);
-}
-
-void StateManager::on_proxy(bool use_proxy) {
-  use_proxy_ = use_proxy;
-  on_network(network_type_);
-  loop();
-}
-
-void StateManager::on_logging_out(bool is_logging_out) {
-  is_logging_out_ = is_logging_out;
-  notify_flag(Flag::LoggingOut);
-}
-
-void StateManager::add_callback(unique_ptr<Callback> callback) {
-  if (callback->on_network(network_type_, network_generation_) && callback->on_online(online_flag_) &&
-      callback->on_state(get_real_state()) && callback->on_logging_out(is_logging_out_)) {
-    callbacks_.push_back(std::move(callback));
-  }
-}
-
-void StateManager::wait_first_sync(Promise<> promise) {
-  if (was_sync_) {
-    return promise.set_value(Unit());
-  }
-  wait_first_sync_.push_back(std::move(promise));
-}
-
-void StateManager::close() {
-  stop();
-}
-
-ConnectionState StateManager::get_real_state() const {
-  if (!network_flag_) {
-    return ConnectionState::WaitingForNetwork;
-  }
-  if (!connect_cnt_) {
-    if (use_proxy_ && !connect_proxy_cnt_) {
-      return ConnectionState::ConnectingToProxy;
-    }
-    return ConnectionState::Connecting;
-  }
-  if (!sync_flag_) {
-    return ConnectionState::Updating;
-  }
-  return ConnectionState::Ready;
-}
-
-void StateManager::notify_flag(Flag flag) {
-  for (auto it = callbacks_.begin(); it != callbacks_.end();) {
-    bool ok = [&] {
-      switch (flag) {
-        case Flag::Online:
-          return (*it)->on_online(online_flag_);
-        case Flag::State:
-          return (*it)->on_state(flush_state_);
-        case Flag::Network:
-          return (*it)->on_network(network_type_, network_generation_);
-        case Flag::LoggingOut:
-          return (*it)->on_logging_out(is_logging_out_);
-        default:
-          UNREACHABLE();
-          return true;
-      }
-    }();
-    if (ok) {
-      ++it;
-    } else {
-      it = callbacks_.erase(it);
-    }
-  }
-}
-
-void StateManager::on_network_soft() {
-  if (network_type_ == NetType::Unknown) {
-    LOG(INFO) << "Auto set net_type = Other";
-    do_on_network(NetType::Other, false /*inc_generation*/);
-  }
-}
-
-void StateManager::start_up() {
-  if (!G()->get_option_boolean("disable_network_statistics")) {
-    create_actor<SleepActor>("SleepActor", 1, create_event_promise(self_closure(this, &StateManager::on_network_soft)))
-        .release();
-  }
-  loop();
-}
-
-void StateManager::loop() {
-  auto now = Time::now();
-  auto state = get_real_state();
-  if (state != pending_state_) {
-    pending_state_ = state;
-    if (!has_timestamp_) {
-      pending_timestamp_ = now;
-      has_timestamp_ = true;
-    }
-  }
-  if (pending_state_ != flush_state_) {
-    double delay = 0;
-    if (flush_state_ != ConnectionState::Empty) {
-      if (static_cast<int32>(pending_state_) > static_cast<int32>(flush_state_)) {
-        delay = UP_DELAY;
-      } else {
-        delay = DOWN_DELAY;
-      }
-      if (network_type_ == NetType::Unknown) {
-        delay = 0;
-      }
-    }
-
-    CHECK(has_timestamp_);
-    if (now >= pending_timestamp_ + delay) {
-      has_timestamp_ = false;
-      flush_state_ = pending_state_;
-      notify_flag(Flag::State);
-    } else {
-      set_timeout_at(pending_timestamp_ + delay);
-    }
-  } else {
-    has_timestamp_ = false;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StateManager.h b/third-party/td/td/td/telegram/StateManager.h
deleted file mode 100644
index 3717d49e8b..0000000000
--- a/third-party/td/td/td/telegram/StateManager.h
+++ /dev/null
@@ -1,102 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ConnectionState.h"
-#include "td/telegram/net/NetType.h"
-
-#include "td/mtproto/ConnectionManager.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class StateManager final : public mtproto::ConnectionManager {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-    virtual bool on_state(ConnectionState state) {
-      return true;
-    }
-    virtual bool on_network(NetType network_type, uint32 generation) {
-      return true;
-    }
-    virtual bool on_online(bool is_online) {
-      return true;
-    }
-    virtual bool on_logging_out(bool is_logging_out) {
-      return true;
-    }
-  };
-
-  explicit StateManager(ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-
-  void on_synchronized(bool is_synchronized);
-
-  void on_network_updated();
-
-  void on_network(NetType new_network_type);
-
-  void on_online(bool is_online);
-
-  void on_proxy(bool use_proxy);
-
-  void on_logging_out(bool is_logging_out);
-
-  void add_callback(unique_ptr<Callback> net_callback);
-
-  void wait_first_sync(Promise<> promise);
-
-  void close();
-
- private:
-  ActorShared<> parent_;
-  bool sync_flag_ = true;
-  bool network_flag_ = true;
-  NetType network_type_ = NetType::Unknown;
-  uint32 network_generation_ = 1;
-  bool online_flag_ = false;
-  bool use_proxy_ = false;
-  bool is_logging_out_ = false;
-
-  static constexpr double UP_DELAY = 0.05;
-  static constexpr double DOWN_DELAY = 0.3;
-
-  ConnectionState pending_state_ = ConnectionState::Empty;
-  bool has_timestamp_ = false;
-  double pending_timestamp_ = 0;
-  ConnectionState flush_state_ = ConnectionState::Empty;
-
-  vector<unique_ptr<Callback>> callbacks_;
-
-  bool was_sync_ = false;
-  vector<Promise<>> wait_first_sync_;
-
-  void inc_connect();
-  void dec_connect();
-
-  enum class Flag : int32 { Online, State, Network, LoggingOut };
-  void notify_flag(Flag flag);
-
-  void start_up() final;
-  void loop() final;
-
-  void on_network_soft();
-  void do_on_network(NetType new_network_type, bool inc_generation);
-
-  ConnectionState get_real_state() const;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StatisticsManager.cpp b/third-party/td/td/td/telegram/StatisticsManager.cpp
deleted file mode 100644
index 92453c63f8..0000000000
--- a/third-party/td/td/td/telegram/StatisticsManager.cpp
+++ /dev/null
@@ -1,969 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StatisticsManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-static td_api::object_ptr<td_api::dateRange> convert_date_range(
-    const telegram_api::object_ptr<telegram_api::statsDateRangeDays> &obj) {
-  return td_api::make_object<td_api::dateRange>(obj->min_date_, obj->max_date_);
-}
-
-static td_api::object_ptr<td_api::StatisticalGraph> convert_stats_graph(
-    telegram_api::object_ptr<telegram_api::StatsGraph> obj) {
-  CHECK(obj != nullptr);
-
-  switch (obj->get_id()) {
-    case telegram_api::statsGraphAsync::ID: {
-      auto graph = move_tl_object_as<telegram_api::statsGraphAsync>(obj);
-      return td_api::make_object<td_api::statisticalGraphAsync>(std::move(graph->token_));
-    }
-    case telegram_api::statsGraphError::ID: {
-      auto graph = move_tl_object_as<telegram_api::statsGraphError>(obj);
-      return td_api::make_object<td_api::statisticalGraphError>(std::move(graph->error_));
-    }
-    case telegram_api::statsGraph::ID: {
-      auto graph = move_tl_object_as<telegram_api::statsGraph>(obj);
-      return td_api::make_object<td_api::statisticalGraphData>(std::move(graph->json_->data_),
-                                                               std::move(graph->zoom_token_));
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-static double get_percentage_value(double part, double total, bool is_percentage) {
-  if (total < 1e-6 && total > -1e-6) {
-    if (part < 1e-6 && part > -1e-6) {
-      return 0.0;
-    }
-    return 100.0;
-  }
-  if (part > 1e20) {
-    return 100.0;
-  }
-  auto value = part / total * 100;
-  if (is_percentage) {
-    return clamp(value, 0.0, 100.0);
-  } else {
-    return max(value, -100.0);
-  }
-}
-
-static td_api::object_ptr<td_api::statisticalValue> convert_stats_absolute_value(
-    const telegram_api::object_ptr<telegram_api::statsAbsValueAndPrev> &obj) {
-  return td_api::make_object<td_api::statisticalValue>(
-      obj->current_, obj->previous_, get_percentage_value(obj->current_ - obj->previous_, obj->previous_, false));
-}
-
-static td_api::object_ptr<td_api::chatStatisticsSupergroup> convert_megagroup_stats(
-    Td *td, telegram_api::object_ptr<telegram_api::stats_megagroupStats> obj) {
-  CHECK(obj != nullptr);
-
-  td->user_manager_->on_get_users(std::move(obj->users_), "convert_megagroup_stats");
-
-  // just in case
-  td::remove_if(obj->top_posters_, [](auto &obj) {
-    return !UserId(obj->user_id_).is_valid() || obj->messages_ < 0 || obj->avg_chars_ < 0;
-  });
-  td::remove_if(obj->top_admins_, [](auto &obj) {
-    return !UserId(obj->user_id_).is_valid() || obj->deleted_ < 0 || obj->kicked_ < 0 || obj->banned_ < 0;
-  });
-  td::remove_if(obj->top_inviters_,
-                [](auto &obj) { return !UserId(obj->user_id_).is_valid() || obj->invitations_ < 0; });
-
-  auto top_senders = transform(
-      std::move(obj->top_posters_), [td](telegram_api::object_ptr<telegram_api::statsGroupTopPoster> &&top_poster) {
-        return td_api::make_object<td_api::chatStatisticsMessageSenderInfo>(
-            td->user_manager_->get_user_id_object(UserId(top_poster->user_id_), "get_top_senders"),
-            top_poster->messages_, top_poster->avg_chars_);
-      });
-  auto top_administrators = transform(
-      std::move(obj->top_admins_), [td](telegram_api::object_ptr<telegram_api::statsGroupTopAdmin> &&top_admin) {
-        return td_api::make_object<td_api::chatStatisticsAdministratorActionsInfo>(
-            td->user_manager_->get_user_id_object(UserId(top_admin->user_id_), "get_top_administrators"),
-            top_admin->deleted_, top_admin->kicked_, top_admin->banned_);
-      });
-  auto top_inviters = transform(
-      std::move(obj->top_inviters_), [td](telegram_api::object_ptr<telegram_api::statsGroupTopInviter> &&top_inviter) {
-        return td_api::make_object<td_api::chatStatisticsInviterInfo>(
-            td->user_manager_->get_user_id_object(UserId(top_inviter->user_id_), "get_top_inviters"),
-            top_inviter->invitations_);
-      });
-
-  return td_api::make_object<td_api::chatStatisticsSupergroup>(
-      convert_date_range(obj->period_), convert_stats_absolute_value(obj->members_),
-      convert_stats_absolute_value(obj->messages_), convert_stats_absolute_value(obj->viewers_),
-      convert_stats_absolute_value(obj->posters_), convert_stats_graph(std::move(obj->growth_graph_)),
-      convert_stats_graph(std::move(obj->members_graph_)),
-      convert_stats_graph(std::move(obj->new_members_by_source_graph_)),
-      convert_stats_graph(std::move(obj->languages_graph_)), convert_stats_graph(std::move(obj->messages_graph_)),
-      convert_stats_graph(std::move(obj->actions_graph_)), convert_stats_graph(std::move(obj->top_hours_graph_)),
-      convert_stats_graph(std::move(obj->weekdays_graph_)), std::move(top_senders), std::move(top_administrators),
-      std::move(top_inviters));
-}
-
-static td_api::object_ptr<td_api::chatStatisticsChannel> convert_broadcast_stats(
-    telegram_api::object_ptr<telegram_api::stats_broadcastStats> obj) {
-  CHECK(obj != nullptr);
-  auto recent_interactions = transform(
-      std::move(obj->recent_posts_interactions_),
-      [](telegram_api::object_ptr<telegram_api::PostInteractionCounters> &&interaction_ptr)
-          -> td_api::object_ptr<td_api::chatStatisticsInteractionInfo> {
-        switch (interaction_ptr->get_id()) {
-          case telegram_api::postInteractionCountersMessage::ID: {
-            auto interaction =
-                telegram_api::move_object_as<telegram_api::postInteractionCountersMessage>(interaction_ptr);
-            return td_api::make_object<td_api::chatStatisticsInteractionInfo>(
-                td_api::make_object<td_api::chatStatisticsObjectTypeMessage>(
-                    MessageId(ServerMessageId(interaction->msg_id_)).get()),
-                interaction->views_, interaction->forwards_, interaction->reactions_);
-          }
-          case telegram_api::postInteractionCountersStory::ID: {
-            auto interaction =
-                telegram_api::move_object_as<telegram_api::postInteractionCountersStory>(interaction_ptr);
-            return td_api::make_object<td_api::chatStatisticsInteractionInfo>(
-                td_api::make_object<td_api::chatStatisticsObjectTypeStory>(StoryId(interaction->story_id_).get()),
-                interaction->views_, interaction->forwards_, interaction->reactions_);
-          }
-          default:
-            UNREACHABLE();
-            return nullptr;
-        }
-      });
-  return td_api::make_object<td_api::chatStatisticsChannel>(
-      convert_date_range(obj->period_), convert_stats_absolute_value(obj->followers_),
-      convert_stats_absolute_value(obj->views_per_post_), convert_stats_absolute_value(obj->shares_per_post_),
-      convert_stats_absolute_value(obj->reactions_per_post_), convert_stats_absolute_value(obj->views_per_story_),
-      convert_stats_absolute_value(obj->shares_per_story_), convert_stats_absolute_value(obj->reactions_per_story_),
-      get_percentage_value(obj->enabled_notifications_->part_, obj->enabled_notifications_->total_, true),
-      convert_stats_graph(std::move(obj->growth_graph_)), convert_stats_graph(std::move(obj->followers_graph_)),
-      convert_stats_graph(std::move(obj->mute_graph_)), convert_stats_graph(std::move(obj->top_hours_graph_)),
-      convert_stats_graph(std::move(obj->views_by_source_graph_)),
-      convert_stats_graph(std::move(obj->new_followers_by_source_graph_)),
-      convert_stats_graph(std::move(obj->languages_graph_)), convert_stats_graph(std::move(obj->interactions_graph_)),
-      convert_stats_graph(std::move(obj->reactions_by_emotion_graph_)),
-      convert_stats_graph(std::move(obj->story_interactions_graph_)),
-      convert_stats_graph(std::move(obj->story_reactions_by_emotion_graph_)),
-      convert_stats_graph(std::move(obj->iv_interactions_graph_)), std::move(recent_interactions));
-}
-
-class GetMegagroupStatsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::ChatStatistics>> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetMegagroupStatsQuery(Promise<td_api::object_ptr<td_api::ChatStatistics>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool is_dark, DcId dc_id) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stats_getMegagroupStats(0, is_dark, std::move(input_channel)), {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getMegagroupStats>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(convert_megagroup_stats(td_, result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetMegagroupStatsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBroadcastStatsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::ChatStatistics>> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetBroadcastStatsQuery(Promise<td_api::object_ptr<td_api::ChatStatistics>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, bool is_dark, DcId dc_id) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stats_getBroadcastStats(0, is_dark, std::move(input_channel)), {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getBroadcastStats>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = convert_broadcast_stats(result_ptr.move_as_ok());
-    for (auto &info : result->recent_interactions_) {
-      switch (info->object_type_->get_id()) {
-        case td_api::chatStatisticsObjectTypeMessage::ID: {
-          MessageId message_id(
-              static_cast<const td_api::chatStatisticsObjectTypeMessage *>(info->object_type_.get())->message_id_);
-          td_->messages_manager_->on_update_message_interaction_info(
-              {DialogId(channel_id_), message_id}, info->view_count_, info->forward_count_, false, nullptr);
-          break;
-        }
-        case td_api::chatStatisticsObjectTypeStory::ID:
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetBroadcastStatsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-static int64 get_amount(int64 amount, bool allow_negative = false) {
-  if (!allow_negative && amount < 0) {
-    LOG(ERROR) << "Receive currency amount = " << amount;
-    return 0;
-  }
-  return amount;
-}
-
-static td_api::object_ptr<td_api::chatRevenueAmount> convert_broadcast_revenue_balances(
-    telegram_api::object_ptr<telegram_api::broadcastRevenueBalances> obj) {
-  CHECK(obj != nullptr);
-  return td_api::make_object<td_api::chatRevenueAmount>("TON", get_amount(obj->overall_revenue_),
-                                                        get_amount(obj->current_balance_),
-                                                        get_amount(obj->available_balance_), obj->withdrawal_enabled_);
-}
-
-static td_api::object_ptr<td_api::chatRevenueStatistics> convert_broadcast_revenue_stats(
-    telegram_api::object_ptr<telegram_api::stats_broadcastRevenueStats> obj) {
-  CHECK(obj != nullptr);
-  return td_api::make_object<td_api::chatRevenueStatistics>(
-      convert_stats_graph(std::move(obj->top_hours_graph_)), convert_stats_graph(std::move(obj->revenue_graph_)),
-      convert_broadcast_revenue_balances(std::move(obj->balances_)),
-      obj->usd_rate_ > 0 ? clamp(obj->usd_rate_ * 1e-7, 1e-18, 1e18) : 1.0);
-}
-
-class GetBroadcastRevenueStatsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatRevenueStatistics>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetBroadcastRevenueStatsQuery(Promise<td_api::object_ptr<td_api::chatRevenueStatistics>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool is_dark) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stats_getBroadcastRevenueStats(0, is_dark, std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getBroadcastRevenueStats>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(convert_broadcast_revenue_stats(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetBroadcastRevenueStatsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBroadcastRevenueWithdrawalUrlQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetBroadcastRevenueWithdrawalUrlQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(500, "Chat not found"));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stats_getBroadcastRevenueWithdrawalUrl(std::move(input_peer), std::move(input_check_password))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getBroadcastRevenueWithdrawalUrl>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(std::move(result_ptr.ok_ref()->url_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetBroadcastRevenueWithdrawalUrlQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBroadcastRevenueTransactionsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::chatRevenueTransactions>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetBroadcastRevenueTransactionsQuery(Promise<td_api::object_ptr<td_api::chatRevenueTransactions>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, int32 offset, int32 limit) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stats_getBroadcastRevenueTransactions(std::move(input_peer), offset, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getBroadcastRevenueTransactions>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetBroadcastRevenueTransactionsQuery: " << to_string(ptr);
-    auto total_count = ptr->count_;
-    if (total_count < static_cast<int32>(ptr->transactions_.size())) {
-      LOG(ERROR) << "Receive total_count = " << total_count << " and " << ptr->transactions_.size() << " transactions";
-      total_count = static_cast<int32>(ptr->transactions_.size());
-    }
-    vector<td_api::object_ptr<td_api::chatRevenueTransaction>> transactions;
-    for (auto &transaction_ptr : ptr->transactions_) {
-      int64 amount = 0;
-      auto type = [&]() -> td_api::object_ptr<td_api::ChatRevenueTransactionType> {
-        switch (transaction_ptr->get_id()) {
-          case telegram_api::broadcastRevenueTransactionProceeds::ID: {
-            auto transaction =
-                telegram_api::move_object_as<telegram_api::broadcastRevenueTransactionProceeds>(transaction_ptr);
-            amount = get_amount(transaction->amount_);
-            return td_api::make_object<td_api::chatRevenueTransactionTypeEarnings>(transaction->from_date_,
-                                                                                   transaction->to_date_);
-          }
-          case telegram_api::broadcastRevenueTransactionWithdrawal::ID: {
-            auto transaction =
-                telegram_api::move_object_as<telegram_api::broadcastRevenueTransactionWithdrawal>(transaction_ptr);
-            amount = get_amount(transaction->amount_, true);
-            auto state = [&]() -> td_api::object_ptr<td_api::RevenueWithdrawalState> {
-              if (transaction->transaction_date_ > 0) {
-                return td_api::make_object<td_api::revenueWithdrawalStateSucceeded>(transaction->transaction_date_,
-                                                                                    transaction->transaction_url_);
-              }
-              if (transaction->pending_) {
-                return td_api::make_object<td_api::revenueWithdrawalStatePending>();
-              }
-              if (!transaction->failed_) {
-                LOG(ERROR) << "Transaction has unknown state";
-              }
-              return td_api::make_object<td_api::revenueWithdrawalStateFailed>();
-            }();
-            return td_api::make_object<td_api::chatRevenueTransactionTypeWithdrawal>(
-                transaction->date_, transaction->provider_, std::move(state));
-          }
-          case telegram_api::broadcastRevenueTransactionRefund::ID: {
-            auto transaction =
-                telegram_api::move_object_as<telegram_api::broadcastRevenueTransactionRefund>(transaction_ptr);
-            amount = get_amount(transaction->amount_);
-            return td_api::make_object<td_api::chatRevenueTransactionTypeRefund>(transaction->date_,
-                                                                                 transaction->provider_);
-          }
-          default:
-            UNREACHABLE();
-            return nullptr;
-        }
-      }();
-      transactions.push_back(td_api::make_object<td_api::chatRevenueTransaction>("TON", amount, std::move(type)));
-    }
-    promise_.set_value(td_api::make_object<td_api::chatRevenueTransactions>(total_count, std::move(transactions)));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetBroadcastRevenueTransactionsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-static td_api::object_ptr<td_api::messageStatistics> convert_message_stats(
-    telegram_api::object_ptr<telegram_api::stats_messageStats> obj) {
-  return td_api::make_object<td_api::messageStatistics>(
-      convert_stats_graph(std::move(obj->views_graph_)),
-      convert_stats_graph(std::move(obj->reactions_by_emotion_graph_)));
-}
-
-class GetMessageStatsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::messageStatistics>> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetMessageStatsQuery(Promise<td_api::object_ptr<td_api::messageStatistics>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, MessageId message_id, bool is_dark, DcId dc_id) {
-    channel_id_ = channel_id;
-
-    auto input_channel = td_->chat_manager_->get_input_channel(channel_id);
-    if (input_channel == nullptr) {
-      return promise_.set_error(Status::Error(400, "Supergroup not found"));
-    }
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::stats_getMessageStats(0, is_dark, std::move(input_channel),
-                                                                            message_id.get_server_message_id().get()),
-                                        {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getMessageStats>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(convert_message_stats(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetMessageStatsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-static td_api::object_ptr<td_api::storyStatistics> convert_story_stats(
-    telegram_api::object_ptr<telegram_api::stats_storyStats> obj) {
-  return td_api::make_object<td_api::storyStatistics>(convert_stats_graph(std::move(obj->views_graph_)),
-                                                      convert_stats_graph(std::move(obj->reactions_by_emotion_graph_)));
-}
-
-class GetStoryStatsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::storyStatistics>> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit GetStoryStatsQuery(Promise<td_api::object_ptr<td_api::storyStatistics>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id, StoryId story_id, bool is_dark, DcId dc_id) {
-    channel_id_ = channel_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(DialogId(channel_id), AccessRights::Read);
-    if (input_peer == nullptr) {
-      return promise_.set_error(Status::Error(400, "Chat not found"));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stats_getStoryStats(0, is_dark, std::move(input_peer), story_id.get()), {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getStoryStats>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(convert_story_stats(result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    td_->chat_manager_->on_get_channel_error(channel_id_, status, "GetStoryStatsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class LoadAsyncGraphQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::StatisticalGraph>> promise_;
-
- public:
-  explicit LoadAsyncGraphQuery(Promise<td_api::object_ptr<td_api::StatisticalGraph>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &token, int64 x, DcId dc_id) {
-    int32 flags = 0;
-    if (x != 0) {
-      flags |= telegram_api::stats_loadAsyncGraph::X_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::stats_loadAsyncGraph(flags, token, x), {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_loadAsyncGraph>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    promise_.set_value(convert_stats_graph(std::move(result)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetMessagePublicForwardsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::publicForwards>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetMessagePublicForwardsQuery(Promise<td_api::object_ptr<td_api::publicForwards>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DcId dc_id, MessageFullId message_full_id, const string &offset, int32 limit) {
-    dialog_id_ = message_full_id.get_dialog_id();
-
-    auto input_channel = td_->chat_manager_->get_input_channel(dialog_id_.get_channel_id());
-    CHECK(input_channel != nullptr);
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stats_getMessagePublicForwards(
-            std::move(input_channel), message_full_id.get_message_id().get_server_message_id().get(), offset, limit),
-        {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getMessagePublicForwards>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->statistics_manager_->get_channel_differences_if_needed(result_ptr.move_as_ok(), std::move(promise_),
-                                                                "GetMessagePublicForwardsQuery");
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetMessagePublicForwardsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStoryPublicForwardsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::publicForwards>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetStoryPublicForwardsQuery(Promise<td_api::object_ptr<td_api::publicForwards>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DcId dc_id, StoryFullId story_full_id, const string &offset, int32 limit) {
-    dialog_id_ = story_full_id.get_dialog_id();
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't get story statistics"));
-    }
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::stats_getStoryPublicForwards(
-                                            std::move(input_peer), story_full_id.get_story_id().get(), offset, limit),
-                                        {}, dc_id));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stats_getStoryPublicForwards>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->statistics_manager_->get_channel_differences_if_needed(result_ptr.move_as_ok(), std::move(promise_),
-                                                                "GetStoryPublicForwardsQuery");
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStoryPublicForwardsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-StatisticsManager::StatisticsManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void StatisticsManager::tear_down() {
-  parent_.reset();
-}
-
-void StatisticsManager::get_channel_statistics(DialogId dialog_id, bool is_dark,
-                                               Promise<td_api::object_ptr<td_api::ChatStatistics>> &&promise) {
-  auto dc_id_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), dialog_id, is_dark, promise = std::move(promise)](Result<DcId> r_dc_id) mutable {
-        if (r_dc_id.is_error()) {
-          return promise.set_error(r_dc_id.move_as_error());
-        }
-        send_closure(actor_id, &StatisticsManager::send_get_channel_stats_query, r_dc_id.move_as_ok(),
-                     dialog_id.get_channel_id(), is_dark, std::move(promise));
-      });
-  td_->chat_manager_->get_channel_statistics_dc_id(dialog_id, true, std::move(dc_id_promise));
-}
-
-void StatisticsManager::send_get_channel_stats_query(DcId dc_id, ChannelId channel_id, bool is_dark,
-                                                     Promise<td_api::object_ptr<td_api::ChatStatistics>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (td_->chat_manager_->is_megagroup_channel(channel_id)) {
-    td_->create_handler<GetMegagroupStatsQuery>(std::move(promise))->send(channel_id, is_dark, dc_id);
-  } else {
-    td_->create_handler<GetBroadcastStatsQuery>(std::move(promise))->send(channel_id, is_dark, dc_id);
-  }
-}
-
-void StatisticsManager::get_dialog_revenue_statistics(
-    DialogId dialog_id, bool is_dark, Promise<td_api::object_ptr<td_api::chatRevenueStatistics>> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "get_dialog_revenue_statistics"));
-  td_->create_handler<GetBroadcastRevenueStatsQuery>(std::move(promise))->send(dialog_id, is_dark);
-}
-
-void StatisticsManager::on_update_dialog_revenue_transactions(
-    DialogId dialog_id, telegram_api::object_ptr<telegram_api::broadcastRevenueBalances> balances) {
-  if (!dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive updateBroadcastRevenueTransactions in invalid " << dialog_id;
-    return;
-  }
-  if (!td_->messages_manager_->have_dialog(dialog_id)) {
-    LOG(INFO) << "Ignore unneeded updateBroadcastRevenueTransactions in " << dialog_id;
-    return;
-  }
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateChatRevenueAmount>(
-                   td_->dialog_manager_->get_chat_id_object(dialog_id, "updateChatRevenueAmount"),
-                   convert_broadcast_revenue_balances(std::move(balances))));
-}
-
-void StatisticsManager::get_dialog_revenue_withdrawal_url(DialogId dialog_id, const string &password,
-                                                          Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write,
-                                                                        "get_dialog_revenue_withdrawal_url"));
-  if (password.empty()) {
-    return promise.set_error(Status::Error(400, "PASSWORD_HASH_INVALID"));
-  }
-  send_closure(
-      td_->password_manager_, &PasswordManager::get_input_check_password_srp, password,
-      PromiseCreator::lambda([actor_id = actor_id(this), dialog_id, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP>> result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &StatisticsManager::send_get_dialog_revenue_withdrawal_url_query, dialog_id,
-                     result.move_as_ok(), std::move(promise));
-      }));
-}
-
-void StatisticsManager::send_get_dialog_revenue_withdrawal_url_query(
-    DialogId dialog_id, telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password,
-    Promise<string> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  td_->create_handler<GetBroadcastRevenueWithdrawalUrlQuery>(std::move(promise))
-      ->send(dialog_id, std::move(input_check_password));
-}
-
-void StatisticsManager::get_dialog_revenue_transactions(
-    DialogId dialog_id, int32 offset, int32 limit,
-    Promise<td_api::object_ptr<td_api::chatRevenueTransactions>> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "get_dialog_revenue_transactions"));
-  td_->create_handler<GetBroadcastRevenueTransactionsQuery>(std::move(promise))->send(dialog_id, offset, limit);
-}
-
-void StatisticsManager::get_channel_message_statistics(
-    MessageFullId message_full_id, bool is_dark, Promise<td_api::object_ptr<td_api::messageStatistics>> &&promise) {
-  auto dc_id_promise = PromiseCreator::lambda([actor_id = actor_id(this), message_full_id, is_dark,
-                                               promise = std::move(promise)](Result<DcId> r_dc_id) mutable {
-    if (r_dc_id.is_error()) {
-      return promise.set_error(r_dc_id.move_as_error());
-    }
-    send_closure(actor_id, &StatisticsManager::send_get_channel_message_stats_query, r_dc_id.move_as_ok(),
-                 message_full_id, is_dark, std::move(promise));
-  });
-  td_->chat_manager_->get_channel_statistics_dc_id(message_full_id.get_dialog_id(), false, std::move(dc_id_promise));
-}
-
-void StatisticsManager::send_get_channel_message_stats_query(
-    DcId dc_id, MessageFullId message_full_id, bool is_dark,
-    Promise<td_api::object_ptr<td_api::messageStatistics>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto dialog_id = message_full_id.get_dialog_id();
-  if (!td_->messages_manager_->have_message_force(message_full_id, "send_get_channel_message_stats_query")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!td_->messages_manager_->can_get_message_statistics(message_full_id)) {
-    return promise.set_error(Status::Error(400, "Message statistics are inaccessible"));
-  }
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  td_->create_handler<GetMessageStatsQuery>(std::move(promise))
-      ->send(dialog_id.get_channel_id(), message_full_id.get_message_id(), is_dark, dc_id);
-}
-
-void StatisticsManager::get_channel_story_statistics(StoryFullId story_full_id, bool is_dark,
-                                                     Promise<td_api::object_ptr<td_api::storyStatistics>> &&promise) {
-  auto dc_id_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), story_full_id, is_dark, promise = std::move(promise)](Result<DcId> r_dc_id) mutable {
-        if (r_dc_id.is_error()) {
-          return promise.set_error(r_dc_id.move_as_error());
-        }
-        send_closure(actor_id, &StatisticsManager::send_get_channel_story_stats_query, r_dc_id.move_as_ok(),
-                     story_full_id, is_dark, std::move(promise));
-      });
-  td_->chat_manager_->get_channel_statistics_dc_id(story_full_id.get_dialog_id(), false, std::move(dc_id_promise));
-}
-
-void StatisticsManager::send_get_channel_story_stats_query(
-    DcId dc_id, StoryFullId story_full_id, bool is_dark,
-    Promise<td_api::object_ptr<td_api::storyStatistics>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto dialog_id = story_full_id.get_dialog_id();
-  if (!td_->story_manager_->have_story_force(story_full_id)) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (!td_->story_manager_->can_get_story_statistics(story_full_id)) {
-    return promise.set_error(Status::Error(400, "Story statistics are inaccessible"));
-  }
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  td_->create_handler<GetStoryStatsQuery>(std::move(promise))
-      ->send(dialog_id.get_channel_id(), story_full_id.get_story_id(), is_dark, dc_id);
-}
-
-void StatisticsManager::load_statistics_graph(DialogId dialog_id, string token, int64 x,
-                                              Promise<td_api::object_ptr<td_api::StatisticalGraph>> &&promise) {
-  auto dc_id_promise = PromiseCreator::lambda([actor_id = actor_id(this), token = std::move(token), x,
-                                               promise = std::move(promise)](Result<DcId> r_dc_id) mutable {
-    if (r_dc_id.is_error()) {
-      return promise.set_error(r_dc_id.move_as_error());
-    }
-    send_closure(actor_id, &StatisticsManager::send_load_async_graph_query, r_dc_id.move_as_ok(), std::move(token), x,
-                 std::move(promise));
-  });
-  td_->chat_manager_->get_channel_statistics_dc_id(dialog_id, false, std::move(dc_id_promise));
-}
-
-void StatisticsManager::send_load_async_graph_query(DcId dc_id, string token, int64 x,
-                                                    Promise<td_api::object_ptr<td_api::StatisticalGraph>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  td_->create_handler<LoadAsyncGraphQuery>(std::move(promise))->send(token, x, dc_id);
-}
-
-void StatisticsManager::get_message_public_forwards(MessageFullId message_full_id, string offset, int32 limit,
-                                                    Promise<td_api::object_ptr<td_api::publicForwards>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-
-  auto dc_id_promise = PromiseCreator::lambda([actor_id = actor_id(this), message_full_id, offset = std::move(offset),
-                                               limit, promise = std::move(promise)](Result<DcId> r_dc_id) mutable {
-    if (r_dc_id.is_error()) {
-      return promise.set_error(r_dc_id.move_as_error());
-    }
-    send_closure(actor_id, &StatisticsManager::send_get_message_public_forwards_query, r_dc_id.move_as_ok(),
-                 message_full_id, std::move(offset), limit, std::move(promise));
-  });
-  td_->chat_manager_->get_channel_statistics_dc_id(message_full_id.get_dialog_id(), false, std::move(dc_id_promise));
-}
-
-void StatisticsManager::send_get_message_public_forwards_query(
-    DcId dc_id, MessageFullId message_full_id, string offset, int32 limit,
-    Promise<td_api::object_ptr<td_api::publicForwards>> &&promise) {
-  if (!td_->messages_manager_->have_message_force(message_full_id, "send_get_message_public_forwards_query")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-  if (!td_->messages_manager_->can_get_message_statistics(message_full_id)) {
-    return promise.set_error(Status::Error(400, "Message forwards are inaccessible"));
-  }
-
-  static constexpr int32 MAX_MESSAGE_FORWARDS = 100;  // server side limit
-  if (limit > MAX_MESSAGE_FORWARDS) {
-    limit = MAX_MESSAGE_FORWARDS;
-  }
-
-  td_->create_handler<GetMessagePublicForwardsQuery>(std::move(promise))->send(dc_id, message_full_id, offset, limit);
-}
-
-void StatisticsManager::get_story_public_forwards(StoryFullId story_full_id, string offset, int32 limit,
-                                                  Promise<td_api::object_ptr<td_api::publicForwards>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  auto dialog_id = story_full_id.get_dialog_id();
-  if (dialog_id.get_type() == DialogType::User) {
-    if (dialog_id != td_->dialog_manager_->get_my_dialog_id()) {
-      return promise.set_error(Status::Error(400, "Have no access to story statistics"));
-    }
-    return send_get_story_public_forwards_query(DcId::main(), story_full_id, std::move(offset), limit,
-                                                std::move(promise));
-  }
-
-  auto dc_id_promise = PromiseCreator::lambda([actor_id = actor_id(this), story_full_id, offset = std::move(offset),
-                                               limit, promise = std::move(promise)](Result<DcId> r_dc_id) mutable {
-    if (r_dc_id.is_error()) {
-      return promise.set_error(r_dc_id.move_as_error());
-    }
-    send_closure(actor_id, &StatisticsManager::send_get_story_public_forwards_query, r_dc_id.move_as_ok(),
-                 story_full_id, std::move(offset), limit, std::move(promise));
-  });
-  td_->chat_manager_->get_channel_statistics_dc_id(dialog_id, false, std::move(dc_id_promise));
-}
-
-void StatisticsManager::send_get_story_public_forwards_query(
-    DcId dc_id, StoryFullId story_full_id, string offset, int32 limit,
-    Promise<td_api::object_ptr<td_api::publicForwards>> &&promise) {
-  if (!td_->story_manager_->have_story_force(story_full_id)) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (!td_->story_manager_->can_get_story_statistics(story_full_id) &&
-      story_full_id.get_dialog_id() != td_->dialog_manager_->get_my_dialog_id()) {
-    return promise.set_error(Status::Error(400, "Story forwards are inaccessible"));
-  }
-
-  static constexpr int32 MAX_STORY_FORWARDS = 100;  // server side limit
-  if (limit > MAX_STORY_FORWARDS) {
-    limit = MAX_STORY_FORWARDS;
-  }
-
-  td_->create_handler<GetStoryPublicForwardsQuery>(std::move(promise))->send(dc_id, story_full_id, offset, limit);
-}
-
-void StatisticsManager::on_get_public_forwards(
-    telegram_api::object_ptr<telegram_api::stats_publicForwards> &&public_forwards,
-    Promise<td_api::object_ptr<td_api::publicForwards>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto total_count = public_forwards->count_;
-  LOG(INFO) << "Receive " << public_forwards->forwards_.size() << " forwarded stories out of "
-            << public_forwards->count_;
-  vector<td_api::object_ptr<td_api::PublicForward>> result;
-  for (auto &forward_ptr : public_forwards->forwards_) {
-    switch (forward_ptr->get_id()) {
-      case telegram_api::publicForwardMessage::ID: {
-        auto forward = telegram_api::move_object_as<telegram_api::publicForwardMessage>(forward_ptr);
-        auto dialog_id = DialogId::get_message_dialog_id(forward->message_);
-        auto message_full_id = td_->messages_manager_->on_get_message(std::move(forward->message_), false,
-                                                                      dialog_id.get_type() == DialogType::Channel,
-                                                                      false, "on_get_public_forwards");
-        if (message_full_id != MessageFullId()) {
-          CHECK(dialog_id == message_full_id.get_dialog_id());
-          result.push_back(td_api::make_object<td_api::publicForwardMessage>(
-              td_->messages_manager_->get_message_object(message_full_id, "on_get_public_forwards")));
-          CHECK(result.back() != nullptr);
-        } else {
-          total_count--;
-        }
-        break;
-      }
-      case telegram_api::publicForwardStory::ID: {
-        auto forward = telegram_api::move_object_as<telegram_api::publicForwardStory>(forward_ptr);
-        auto dialog_id = DialogId(forward->peer_);
-        auto story_id = td_->story_manager_->on_get_story(dialog_id, std::move(forward->story_));
-        if (story_id.is_valid() && td_->story_manager_->have_story({dialog_id, story_id})) {
-          result.push_back(td_api::make_object<td_api::publicForwardStory>(
-              td_->story_manager_->get_story_object({dialog_id, story_id})));
-          CHECK(result.back() != nullptr);
-        } else {
-          total_count--;
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-  if (total_count < static_cast<int32>(result.size())) {
-    LOG(ERROR) << "Receive " << result.size() << " valid story sorwards out of " << total_count;
-    total_count = static_cast<int32>(result.size());
-  }
-  promise.set_value(
-      td_api::make_object<td_api::publicForwards>(total_count, std::move(result), public_forwards->next_offset_));
-}
-
-void StatisticsManager::get_channel_differences_if_needed(
-    telegram_api::object_ptr<telegram_api::stats_publicForwards> &&public_forwards,
-    Promise<td_api::object_ptr<td_api::publicForwards>> promise, const char *source) {
-  td_->user_manager_->on_get_users(std::move(public_forwards->users_), "stats_publicForwards");
-  td_->chat_manager_->on_get_chats(std::move(public_forwards->chats_), "stats_publicForwards");
-
-  vector<const telegram_api::object_ptr<telegram_api::Message> *> messages;
-  for (const auto &forward : public_forwards->forwards_) {
-    CHECK(forward != nullptr);
-    if (forward->get_id() != telegram_api::publicForwardMessage::ID) {
-      continue;
-    }
-    messages.push_back(&static_cast<const telegram_api::publicForwardMessage *>(forward.get())->message_);
-  }
-  td_->messages_manager_->get_channel_differences_if_needed(
-      messages,
-      PromiseCreator::lambda([actor_id = actor_id(this), public_forwards = std::move(public_forwards),
-                              promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &StatisticsManager::on_get_public_forwards, std::move(public_forwards),
-                       std::move(promise));
-        }
-      }),
-      source);
-}
-
-td_api::object_ptr<td_api::StatisticalGraph> StatisticsManager::convert_stats_graph(
-    telegram_api::object_ptr<telegram_api::StatsGraph> obj) {
-  return ::td::convert_stats_graph(std::move(obj));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StatisticsManager.h b/third-party/td/td/td/telegram/StatisticsManager.h
deleted file mode 100644
index 234dacd10b..0000000000
--- a/third-party/td/td/td/telegram/StatisticsManager.h
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class StatisticsManager final : public Actor {
- public:
-  StatisticsManager(Td *td, ActorShared<> parent);
-
-  void get_channel_statistics(DialogId dialog_id, bool is_dark,
-                              Promise<td_api::object_ptr<td_api::ChatStatistics>> &&promise);
-
-  void get_dialog_revenue_statistics(DialogId dialog_id, bool is_dark,
-                                     Promise<td_api::object_ptr<td_api::chatRevenueStatistics>> &&promise);
-
-  void get_dialog_revenue_withdrawal_url(DialogId dialog_id, const string &password, Promise<string> &&promise);
-
-  void get_dialog_revenue_transactions(DialogId dialog_id, int32 offset, int32 limit,
-                                       Promise<td_api::object_ptr<td_api::chatRevenueTransactions>> &&promise);
-
-  void on_update_dialog_revenue_transactions(DialogId dialog_id,
-                                             telegram_api::object_ptr<telegram_api::broadcastRevenueBalances> balances);
-
-  void get_channel_message_statistics(MessageFullId message_full_id, bool is_dark,
-                                      Promise<td_api::object_ptr<td_api::messageStatistics>> &&promise);
-
-  void get_channel_story_statistics(StoryFullId message_full_id, bool is_dark,
-                                    Promise<td_api::object_ptr<td_api::storyStatistics>> &&promise);
-
-  void load_statistics_graph(DialogId dialog_id, string token, int64 x,
-                             Promise<td_api::object_ptr<td_api::StatisticalGraph>> &&promise);
-
-  void get_message_public_forwards(MessageFullId message_full_id, string offset, int32 limit,
-                                   Promise<td_api::object_ptr<td_api::publicForwards>> &&promise);
-
-  void get_story_public_forwards(StoryFullId story_full_id, string offset, int32 limit,
-                                 Promise<td_api::object_ptr<td_api::publicForwards>> &&promise);
-
-  void on_get_public_forwards(telegram_api::object_ptr<telegram_api::stats_publicForwards> &&public_forwards,
-                              Promise<td_api::object_ptr<td_api::publicForwards>> &&promise);
-
-  void get_channel_differences_if_needed(telegram_api::object_ptr<telegram_api::stats_publicForwards> &&public_forwards,
-                                         Promise<td_api::object_ptr<td_api::publicForwards>> promise,
-                                         const char *source);
-
-  static td_api::object_ptr<td_api::StatisticalGraph> convert_stats_graph(
-      telegram_api::object_ptr<telegram_api::StatsGraph> obj);
-
- private:
-  void tear_down() final;
-
-  void send_get_channel_stats_query(DcId dc_id, ChannelId channel_id, bool is_dark,
-                                    Promise<td_api::object_ptr<td_api::ChatStatistics>> &&promise);
-
-  void send_get_channel_message_stats_query(DcId dc_id, MessageFullId message_full_id, bool is_dark,
-                                            Promise<td_api::object_ptr<td_api::messageStatistics>> &&promise);
-
-  void send_get_channel_story_stats_query(DcId dc_id, StoryFullId story_full_id, bool is_dark,
-                                          Promise<td_api::object_ptr<td_api::storyStatistics>> &&promise);
-
-  void send_load_async_graph_query(DcId dc_id, string token, int64 x,
-                                   Promise<td_api::object_ptr<td_api::StatisticalGraph>> &&promise);
-
-  void send_get_message_public_forwards_query(DcId dc_id, MessageFullId message_full_id, string offset, int32 limit,
-                                              Promise<td_api::object_ptr<td_api::publicForwards>> &&promise);
-
-  void send_get_story_public_forwards_query(DcId dc_id, StoryFullId story_full_id, string offset, int32 limit,
-                                            Promise<td_api::object_ptr<td_api::publicForwards>> &&promise);
-
-  void send_get_dialog_revenue_withdrawal_url_query(
-      DialogId dialog_id, telegram_api::object_ptr<telegram_api::InputCheckPasswordSRP> input_check_password,
-      Promise<string> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerFormat.cpp b/third-party/td/td/td/telegram/StickerFormat.cpp
deleted file mode 100644
index 847c22ee43..0000000000
--- a/third-party/td/td/td/telegram/StickerFormat.cpp
+++ /dev/null
@@ -1,183 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StickerFormat.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-StickerFormat get_sticker_format(const td_api::object_ptr<td_api::StickerFormat> &format) {
-  if (format == nullptr) {
-    return StickerFormat::Unknown;
-  }
-  switch (format->get_id()) {
-    case td_api::stickerFormatWebp::ID:
-      return StickerFormat::Webp;
-    case td_api::stickerFormatTgs::ID:
-      return StickerFormat::Tgs;
-    case td_api::stickerFormatWebm::ID:
-      return StickerFormat::Webm;
-    default:
-      UNREACHABLE();
-      return StickerFormat::Unknown;
-  }
-}
-
-StickerFormat get_sticker_format_by_mime_type(Slice mime_type) {
-  if (mime_type == "application/x-tgsticker") {
-    return StickerFormat::Tgs;
-  }
-  if (mime_type == "image/webp") {
-    return StickerFormat::Webp;
-  }
-  if (mime_type == "video/webm") {
-    return StickerFormat::Webm;
-  }
-  return StickerFormat::Unknown;
-}
-
-StickerFormat get_sticker_format_by_extension(Slice extension) {
-  if (extension == "tgs") {
-    return StickerFormat::Tgs;
-  }
-  if (extension == "webp") {
-    return StickerFormat::Webp;
-  }
-  if (extension == "webm") {
-    return StickerFormat::Webm;
-  }
-  return StickerFormat::Unknown;
-}
-
-td_api::object_ptr<td_api::StickerFormat> get_sticker_format_object(StickerFormat sticker_format) {
-  switch (sticker_format) {
-    case StickerFormat::Unknown:
-      LOG(ERROR) << "Have a sticker of unknown format";
-      return td_api::make_object<td_api::stickerFormatWebp>();
-    case StickerFormat::Webp:
-      return td_api::make_object<td_api::stickerFormatWebp>();
-    case StickerFormat::Tgs:
-      return td_api::make_object<td_api::stickerFormatTgs>();
-    case StickerFormat::Webm:
-      return td_api::make_object<td_api::stickerFormatWebm>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-string get_sticker_format_mime_type(StickerFormat sticker_format) {
-  switch (sticker_format) {
-    case StickerFormat::Unknown:
-    case StickerFormat::Webp:
-      return "image/webp";
-    case StickerFormat::Tgs:
-      return "application/x-tgsticker";
-    case StickerFormat::Webm:
-      return "video/webm";
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-Slice get_sticker_format_extension(StickerFormat sticker_format) {
-  switch (sticker_format) {
-    case StickerFormat::Unknown:
-      return Slice();
-    case StickerFormat::Webp:
-      return Slice(".webp");
-    case StickerFormat::Tgs:
-      return Slice(".tgs");
-    case StickerFormat::Webm:
-      return Slice(".webm");
-    default:
-      UNREACHABLE();
-      return Slice();
-  }
-}
-
-PhotoFormat get_sticker_format_photo_format(StickerFormat sticker_format) {
-  switch (sticker_format) {
-    case StickerFormat::Unknown:
-    case StickerFormat::Webp:
-      return PhotoFormat::Webp;
-    case StickerFormat::Tgs:
-      return PhotoFormat::Tgs;
-    case StickerFormat::Webm:
-      return PhotoFormat::Webm;
-    default:
-      UNREACHABLE();
-      return PhotoFormat::Webp;
-  }
-}
-
-bool is_sticker_format_animated(StickerFormat sticker_format) {
-  switch (sticker_format) {
-    case StickerFormat::Unknown:
-      return false;
-    case StickerFormat::Webp:
-      return false;
-    case StickerFormat::Tgs:
-      return true;
-    case StickerFormat::Webm:
-      return true;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool is_sticker_format_vector(StickerFormat sticker_format) {
-  switch (sticker_format) {
-    case StickerFormat::Unknown:
-      return false;
-    case StickerFormat::Webp:
-      return false;
-    case StickerFormat::Tgs:
-      return true;
-    case StickerFormat::Webm:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-int64 get_max_sticker_file_size(StickerFormat sticker_format, StickerType sticker_type, bool for_thumbnail) {
-  bool is_custom_emoji = sticker_type == StickerType::CustomEmoji;
-  switch (sticker_format) {
-    case StickerFormat::Unknown:
-    case StickerFormat::Webp:
-      return for_thumbnail ? (1 << 17) : (is_custom_emoji ? (1 << 17) : (1 << 19));
-    case StickerFormat::Tgs:
-      return for_thumbnail ? (1 << 15) : (1 << 16);
-    case StickerFormat::Webm:
-      return for_thumbnail ? (1 << 15) : (is_custom_emoji ? (1 << 16) : (1 << 18));
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, StickerFormat sticker_format) {
-  switch (sticker_format) {
-    case StickerFormat::Unknown:
-      return string_builder << "unknown";
-    case StickerFormat::Webp:
-      return string_builder << "WEBP";
-    case StickerFormat::Tgs:
-      return string_builder << "TGS";
-    case StickerFormat::Webm:
-      return string_builder << "WEBM";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerFormat.h b/third-party/td/td/td/telegram/StickerFormat.h
deleted file mode 100644
index 970f2b715b..0000000000
--- a/third-party/td/td/td/telegram/StickerFormat.h
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-// update store_sticker/store_sticker_set when this type changes
-enum class StickerFormat : int32 { Unknown, Webp, Tgs, Webm };
-
-StickerFormat get_sticker_format(const td_api::object_ptr<td_api::StickerFormat> &format);
-
-StickerFormat get_sticker_format_by_mime_type(Slice mime_type);
-
-StickerFormat get_sticker_format_by_extension(Slice extension);
-
-td_api::object_ptr<td_api::StickerFormat> get_sticker_format_object(StickerFormat sticker_format);
-
-string get_sticker_format_mime_type(StickerFormat sticker_format);
-
-Slice get_sticker_format_extension(StickerFormat sticker_format);
-
-PhotoFormat get_sticker_format_photo_format(StickerFormat sticker_format);
-
-bool is_sticker_format_animated(StickerFormat sticker_format);
-
-bool is_sticker_format_vector(StickerFormat sticker_format);
-
-int64 get_max_sticker_file_size(StickerFormat sticker_format, StickerType sticker_type, bool for_thumbnail);
-
-StringBuilder &operator<<(StringBuilder &string_builder, StickerFormat sticker_format);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerListType.cpp b/third-party/td/td/td/telegram/StickerListType.cpp
deleted file mode 100644
index ad74b023f1..0000000000
--- a/third-party/td/td/td/telegram/StickerListType.cpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StickerListType.h"
-
-namespace td {
-
-string get_sticker_list_type_database_key(StickerListType sticker_list_type) {
-  switch (sticker_list_type) {
-    case StickerListType::DialogPhoto:
-      return "default_dialog_photo_custom_emoji_ids";
-    case StickerListType::UserProfilePhoto:
-      return "default_profile_photo_custom_emoji_ids";
-    case StickerListType::Background:
-      return "default_background_custom_emoji_ids";
-    case StickerListType::DisallowedChannelEmojiStatus:
-      return "disallowed_channel_emoji_status_custom_emoji_ids";
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, StickerListType sticker_list_type) {
-  switch (sticker_list_type) {
-    case StickerListType::DialogPhoto:
-      return string_builder << "default chat photo custom emoji identifiers";
-    case StickerListType::UserProfilePhoto:
-      return string_builder << "default user profile photo custom emoji identifiers";
-    case StickerListType::Background:
-      return string_builder << "default background custom emoji identifiers";
-    case StickerListType::DisallowedChannelEmojiStatus:
-      return string_builder << "disallowed chat emoji status custom emoji identifiers";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerListType.h b/third-party/td/td/td/telegram/StickerListType.h
deleted file mode 100644
index 022c3c4c84..0000000000
--- a/third-party/td/td/td/telegram/StickerListType.h
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class StickerListType : int32 { DialogPhoto, UserProfilePhoto, Background, DisallowedChannelEmojiStatus };
-
-static constexpr int32 MAX_STICKER_LIST_TYPE = 4;
-
-string get_sticker_list_type_database_key(StickerListType sticker_list_type);
-
-StringBuilder &operator<<(StringBuilder &string_builder, StickerListType sticker_list_type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerMaskPosition.cpp b/third-party/td/td/td/telegram/StickerMaskPosition.cpp
deleted file mode 100644
index 2c68bac383..0000000000
--- a/third-party/td/td/td/telegram/StickerMaskPosition.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StickerMaskPosition.h"
-
-namespace td {
-
-static td_api::object_ptr<td_api::MaskPoint> get_mask_point_object(int32 point) {
-  switch (point) {
-    case 0:
-      return td_api::make_object<td_api::maskPointForehead>();
-    case 1:
-      return td_api::make_object<td_api::maskPointEyes>();
-    case 2:
-      return td_api::make_object<td_api::maskPointMouth>();
-    case 3:
-      return td_api::make_object<td_api::maskPointChin>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-StickerMaskPosition::StickerMaskPosition(const telegram_api::object_ptr<telegram_api::maskCoords> &mask_coords) {
-  if (mask_coords == nullptr) {
-    return;
-  }
-  int32 point = mask_coords->n_;
-  if (point < 0 || point > 3) {
-    return;
-  }
-  point_ = mask_coords->n_;
-  x_shift_ = mask_coords->x_;
-  y_shift_ = mask_coords->y_;
-  scale_ = mask_coords->zoom_;
-}
-
-StickerMaskPosition::StickerMaskPosition(const td_api::object_ptr<td_api::maskPosition> &mask_position) {
-  if (mask_position == nullptr || mask_position->point_ == nullptr) {
-    return;
-  }
-  point_ = [mask_point_id = mask_position->point_->get_id()] {
-    switch (mask_point_id) {
-      case td_api::maskPointForehead::ID:
-        return 0;
-      case td_api::maskPointEyes::ID:
-        return 1;
-      case td_api::maskPointMouth::ID:
-        return 2;
-      case td_api::maskPointChin::ID:
-        return 3;
-      default:
-        UNREACHABLE();
-        return -1;
-    }
-  }();
-  x_shift_ = mask_position->x_shift_;
-  y_shift_ = mask_position->y_shift_;
-  scale_ = mask_position->scale_;
-}
-
-telegram_api::object_ptr<telegram_api::maskCoords> StickerMaskPosition::get_input_mask_coords() const {
-  if (point_ < 0) {
-    return nullptr;
-  }
-  return telegram_api::make_object<telegram_api::maskCoords>(point_, x_shift_, y_shift_, scale_);
-}
-
-td_api::object_ptr<td_api::maskPosition> StickerMaskPosition::get_mask_position_object() const {
-  if (point_ < 0) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::maskPosition>(get_mask_point_object(point_), x_shift_, y_shift_, scale_);
-}
-
-bool operator==(const StickerMaskPosition &lhs, const StickerMaskPosition &rhs) {
-  return lhs.point_ == rhs.point_ && lhs.x_shift_ == rhs.x_shift_ && lhs.y_shift_ == rhs.y_shift_ &&
-         lhs.scale_ == rhs.scale_;
-}
-
-bool operator!=(const StickerMaskPosition &lhs, const StickerMaskPosition &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StickerMaskPosition &sticker_mask_position) {
-  if (sticker_mask_position.point_ < 0) {
-    return string_builder << "MaskPosition[]";
-  }
-  return string_builder << "MaskPosition[" << sticker_mask_position.point_ << ' ' << sticker_mask_position.x_shift_
-                        << ' ' << sticker_mask_position.y_shift_ << ' ' << sticker_mask_position.scale_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerMaskPosition.h b/third-party/td/td/td/telegram/StickerMaskPosition.h
deleted file mode 100644
index bedada8c2e..0000000000
--- a/third-party/td/td/td/telegram/StickerMaskPosition.h
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class StickerMaskPosition {
-  int32 point_ = -1;
-  double x_shift_ = 0;
-  double y_shift_ = 0;
-  double scale_ = 0;
-
-  friend bool operator==(const StickerMaskPosition &lhs, const StickerMaskPosition &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StickerMaskPosition &sticker_mask_position);
-
- public:
-  StickerMaskPosition() = default;
-
-  explicit StickerMaskPosition(const td_api::object_ptr<td_api::maskPosition> &mask_position);
-
-  explicit StickerMaskPosition(const telegram_api::object_ptr<telegram_api::maskCoords> &mask_coords);
-
-  telegram_api::object_ptr<telegram_api::maskCoords> get_input_mask_coords() const;
-
-  td_api::object_ptr<td_api::maskPosition> get_mask_position_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StickerMaskPosition &lhs, const StickerMaskPosition &rhs);
-bool operator!=(const StickerMaskPosition &lhs, const StickerMaskPosition &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StickerMaskPosition &sticker_mask_position);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerMaskPosition.hpp b/third-party/td/td/td/telegram/StickerMaskPosition.hpp
deleted file mode 100644
index c4d94dcd00..0000000000
--- a/third-party/td/td/td/telegram/StickerMaskPosition.hpp
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StickerMaskPosition.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StickerMaskPosition::store(StorerT &storer) const {
-  td::store(point_, storer);
-  td::store(x_shift_, storer);
-  td::store(y_shift_, storer);
-  td::store(scale_, storer);
-}
-
-template <class ParserT>
-void StickerMaskPosition::parse(ParserT &parser) {
-  td::parse(point_, parser);
-  td::parse(x_shift_, parser);
-  td::parse(y_shift_, parser);
-  td::parse(scale_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerPhotoSize.cpp b/third-party/td/td/td/telegram/StickerPhotoSize.cpp
deleted file mode 100644
index ca815a25a5..0000000000
--- a/third-party/td/td/td/telegram/StickerPhotoSize.cpp
+++ /dev/null
@@ -1,186 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StickerPhotoSize.h"
-
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-Result<unique_ptr<StickerPhotoSize>> StickerPhotoSize::get_sticker_photo_size(
-    Td *td, const td_api::object_ptr<td_api::chatPhotoSticker> &sticker) {
-  if (sticker == nullptr) {
-    return Status::Error(400, "Sticker must not be null");
-  }
-  if (sticker->type_ == nullptr) {
-    return Status::Error(400, "Type must be non-null");
-  }
-  if (sticker->background_fill_ == nullptr) {
-    return Status::Error(400, "Background must be non-null");
-  }
-  auto result = make_unique<StickerPhotoSize>();
-  switch (sticker->type_->get_id()) {
-    case td_api::chatPhotoStickerTypeRegularOrMask::ID: {
-      auto type = static_cast<const td_api::chatPhotoStickerTypeRegularOrMask *>(sticker->type_.get());
-      result->type_ = Type::Sticker;
-      result->sticker_set_id_ = StickerSetId(type->sticker_set_id_);
-      result->sticker_id_ = type->sticker_id_;
-      if (!td->stickers_manager_->have_sticker(result->sticker_set_id_, result->sticker_id_)) {
-        return Status::Error(400, "Sticker not found");
-      }
-      break;
-    }
-    case td_api::chatPhotoStickerTypeCustomEmoji::ID: {
-      auto type = static_cast<const td_api::chatPhotoStickerTypeCustomEmoji *>(sticker->type_.get());
-      result->type_ = Type::CustomEmoji;
-      result->custom_emoji_id_ = CustomEmojiId(type->custom_emoji_id_);
-      if (!td->stickers_manager_->have_custom_emoji(result->custom_emoji_id_)) {
-        return Status::Error(400, "Custom emoji not found");
-      }
-      break;
-    }
-  }
-  auto fill = sticker->background_fill_.get();
-  switch (fill->get_id()) {
-    case td_api::backgroundFillSolid::ID: {
-      auto solid = static_cast<const td_api::backgroundFillSolid *>(fill);
-      result->background_colors_.push_back(solid->color_);
-      break;
-    }
-    case td_api::backgroundFillGradient::ID: {
-      auto gradient = static_cast<const td_api::backgroundFillGradient *>(fill);
-      result->background_colors_.push_back(gradient->top_color_);
-      result->background_colors_.push_back(gradient->bottom_color_);
-      break;
-    }
-    case td_api::backgroundFillFreeformGradient::ID: {
-      auto freeform = static_cast<const td_api::backgroundFillFreeformGradient *>(fill);
-      if (freeform->colors_.size() != 3 && freeform->colors_.size() != 4) {
-        return Status::Error(400, "Invalid number of colors specified");
-      }
-      result->background_colors_ = freeform->colors_;
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-  for (auto &color : result->background_colors_) {
-    color &= 0xFFFFFF;
-  }
-  return std::move(result);
-}
-
-telegram_api::object_ptr<telegram_api::VideoSize> StickerPhotoSize::get_input_video_size_object(Td *td) const {
-  switch (type_) {
-    case Type::Sticker:
-      return telegram_api::make_object<telegram_api::videoSizeStickerMarkup>(
-          td->stickers_manager_->get_input_sticker_set(sticker_set_id_), sticker_id_,
-          vector<int32>(background_colors_));
-    case Type::CustomEmoji:
-      return telegram_api::make_object<telegram_api::videoSizeEmojiMarkup>(custom_emoji_id_.get(),
-                                                                           vector<int32>(background_colors_));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-unique_ptr<StickerPhotoSize> StickerPhotoSize::get_sticker_photo_size(
-    Td *td, telegram_api::object_ptr<telegram_api::VideoSize> &&size_ptr) {
-  CHECK(size_ptr != nullptr);
-  auto result = make_unique<StickerPhotoSize>();
-  bool is_valid = false;
-  switch (size_ptr->get_id()) {
-    case telegram_api::videoSizeEmojiMarkup::ID: {
-      auto size = move_tl_object_as<telegram_api::videoSizeEmojiMarkup>(size_ptr);
-      result->type_ = Type::CustomEmoji;
-      result->custom_emoji_id_ = CustomEmojiId(size->emoji_id_);
-      result->background_colors_ = std::move(size->background_colors_);
-      is_valid = result->custom_emoji_id_.is_valid();
-      break;
-    }
-    case telegram_api::videoSizeStickerMarkup::ID: {
-      auto size = move_tl_object_as<telegram_api::videoSizeStickerMarkup>(size_ptr);
-      result->type_ = Type::Sticker;
-      result->sticker_set_id_ = td->stickers_manager_->add_sticker_set(std::move(size->stickerset_));
-      result->sticker_id_ = size->sticker_id_;
-      result->background_colors_ = std::move(size->background_colors_);
-      is_valid = result->sticker_set_id_.is_valid() && result->sticker_id_ != 0;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  if (!is_valid || result->background_colors_.empty() || result->background_colors_.size() > 4) {
-    LOG(ERROR) << "Receive invalid " << *result;
-    return {};
-  }
-  for (auto &color : result->background_colors_) {
-    color &= 0xFFFFFF;
-  }
-  return result;
-}
-
-td_api::object_ptr<td_api::chatPhotoSticker> StickerPhotoSize::get_chat_photo_sticker_object() const {
-  td_api::object_ptr<td_api::ChatPhotoStickerType> sticker_type;
-  switch (type_) {
-    case Type::Sticker:
-      sticker_type = td_api::make_object<td_api::chatPhotoStickerTypeRegularOrMask>(sticker_set_id_.get(), sticker_id_);
-      break;
-    case Type::CustomEmoji:
-      sticker_type = td_api::make_object<td_api::chatPhotoStickerTypeCustomEmoji>(custom_emoji_id_.get());
-      break;
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-  CHECK(sticker_type != nullptr);
-
-  auto background_fill = [&](vector<int32> colors) -> td_api::object_ptr<td_api::BackgroundFill> {
-    switch (colors.size()) {
-      case 1:
-        return td_api::make_object<td_api::backgroundFillSolid>(colors[0]);
-      case 2:
-        return td_api::make_object<td_api::backgroundFillGradient>(colors[0], colors[1], 0);
-      case 3:
-      case 4:
-        return td_api::make_object<td_api::backgroundFillFreeformGradient>(std::move(colors));
-      default:
-        UNREACHABLE();
-        return nullptr;
-    }
-  }(background_colors_);
-
-  return td_api::make_object<td_api::chatPhotoSticker>(std::move(sticker_type), std::move(background_fill));
-}
-
-bool operator==(const StickerPhotoSize &lhs, const StickerPhotoSize &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.sticker_set_id_ == rhs.sticker_set_id_ && lhs.sticker_id_ == rhs.sticker_id_ &&
-         lhs.custom_emoji_id_ == rhs.custom_emoji_id_ && lhs.background_colors_ == rhs.background_colors_;
-}
-
-bool operator!=(const StickerPhotoSize &lhs, const StickerPhotoSize &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StickerPhotoSize &sticker_photo_size) {
-  switch (sticker_photo_size.type_) {
-    case StickerPhotoSize::Type::Sticker:
-      return string_builder << sticker_photo_size.sticker_id_ << " from " << sticker_photo_size.sticker_set_id_
-                            << " on " << sticker_photo_size.background_colors_;
-    case StickerPhotoSize::Type::CustomEmoji:
-      return string_builder << sticker_photo_size.custom_emoji_id_ << " on " << sticker_photo_size.background_colors_;
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerPhotoSize.h b/third-party/td/td/td/telegram/StickerPhotoSize.h
deleted file mode 100644
index 3c772fecff..0000000000
--- a/third-party/td/td/td/telegram/StickerPhotoSize.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/StickerSetId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class StickerPhotoSize {
-  enum class Type : int32 { Sticker, CustomEmoji };
-  Type type_ = Type::CustomEmoji;
-  CustomEmojiId custom_emoji_id_;
-  StickerSetId sticker_set_id_;
-  int64 sticker_id_ = 0;
-  vector<int32> background_colors_;
-
-  friend bool operator==(const StickerPhotoSize &lhs, const StickerPhotoSize &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StickerPhotoSize &sticker_photo_size);
-
- public:
-  static Result<unique_ptr<StickerPhotoSize>> get_sticker_photo_size(
-      Td *td, const td_api::object_ptr<td_api::chatPhotoSticker> &chat_photo_sticker);
-
-  static unique_ptr<StickerPhotoSize> get_sticker_photo_size(
-      Td *td, telegram_api::object_ptr<telegram_api::VideoSize> &&size_ptr);
-
-  telegram_api::object_ptr<telegram_api::VideoSize> get_input_video_size_object(Td *td) const;
-
-  td_api::object_ptr<td_api::chatPhotoSticker> get_chat_photo_sticker_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StickerPhotoSize &lhs, const StickerPhotoSize &rhs);
-bool operator!=(const StickerPhotoSize &lhs, const StickerPhotoSize &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StickerPhotoSize &sticker_photo_size);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerPhotoSize.hpp b/third-party/td/td/td/telegram/StickerPhotoSize.hpp
deleted file mode 100644
index f40791afb4..0000000000
--- a/third-party/td/td/td/telegram/StickerPhotoSize.hpp
+++ /dev/null
@@ -1,53 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StickerPhotoSize.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StickerPhotoSize::store(StorerT &storer) const {
-  bool is_custom_emoji = type_ == Type::CustomEmoji;
-  bool is_sticker = type_ == Type::Sticker;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_custom_emoji);
-  STORE_FLAG(is_sticker);
-  END_STORE_FLAGS();
-  if (is_custom_emoji) {
-    td::store(custom_emoji_id_, storer);
-  } else if (is_sticker) {
-    td::store(sticker_set_id_, storer);
-    td::store(sticker_id_, storer);
-  }
-  td::store(background_colors_, storer);
-}
-
-template <class ParserT>
-void StickerPhotoSize::parse(ParserT &parser) {
-  bool is_custom_emoji;
-  bool is_sticker;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_custom_emoji);
-  PARSE_FLAG(is_sticker);
-  END_PARSE_FLAGS();
-  if (is_custom_emoji) {
-    type_ = Type::CustomEmoji;
-    td::parse(custom_emoji_id_, parser);
-  } else if (is_sticker) {
-    type_ = Type::Sticker;
-    td::parse(sticker_set_id_, parser);
-    td::parse(sticker_id_, parser);
-  } else {
-    UNREACHABLE();
-  }
-  td::parse(background_colors_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerSetId.cpp b/third-party/td/td/td/telegram/StickerSetId.cpp
deleted file mode 100644
index 26bbedb493..0000000000
--- a/third-party/td/td/td/telegram/StickerSetId.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StickerSetId.h"
-
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-void StickerSetId::store(LogEventStorerCalcLength &storer) const {
-  storer.context()->td().get_actor_unsafe()->stickers_manager_->store_sticker_set_id(*this, storer);
-}
-
-void StickerSetId::store(LogEventStorerUnsafe &storer) const {
-  storer.context()->td().get_actor_unsafe()->stickers_manager_->store_sticker_set_id(*this, storer);
-}
-
-void StickerSetId::parse(LogEventParser &parser) {
-  parser.context()->td().get_actor_unsafe()->stickers_manager_->parse_sticker_set_id(*this, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerSetId.h b/third-party/td/td/td/telegram/StickerSetId.h
deleted file mode 100644
index b1cc4c02de..0000000000
--- a/third-party/td/td/td/telegram/StickerSetId.h
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/logevent/LogEvent.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class StickerSetId {
-  int64 id = 0;
-
- public:
-  StickerSetId() = default;
-
-  explicit constexpr StickerSetId(int64 sticker_set_id) : id(sticker_set_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  StickerSetId(T sticker_set_id) = delete;
-
-  bool is_valid() const {
-    return id != 0;
-  }
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const StickerSetId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const StickerSetId &other) const {
-    return id != other.id;
-  }
-
-  void store(LogEventStorerCalcLength &storer) const;
-
-  void store(LogEventStorerUnsafe &storer) const;
-
-  void parse(LogEventParser &parser);
-};
-
-struct StickerSetIdHash {
-  uint32 operator()(StickerSetId sticker_set_id) const {
-    return Hash<int64>()(sticker_set_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, StickerSetId sticker_set_id) {
-  return string_builder << "sticker set " << sticker_set_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerType.cpp b/third-party/td/td/td/telegram/StickerType.cpp
deleted file mode 100644
index a9c01778ed..0000000000
--- a/third-party/td/td/td/telegram/StickerType.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StickerType.h"
-
-namespace td {
-
-StickerType get_sticker_type(bool is_mask, bool is_custom_emoji) {
-  if (is_custom_emoji) {
-    return StickerType::CustomEmoji;
-  }
-  if (is_mask) {
-    return StickerType::Mask;
-  }
-  return StickerType::Regular;
-}
-
-StickerType get_sticker_type(const td_api::object_ptr<td_api::StickerType> &type) {
-  if (type == nullptr) {
-    return StickerType::Regular;
-  }
-  switch (type->get_id()) {
-    case td_api::stickerTypeRegular::ID:
-      return StickerType::Regular;
-    case td_api::stickerTypeMask::ID:
-      return StickerType::Mask;
-    case td_api::stickerTypeCustomEmoji::ID:
-      return StickerType::CustomEmoji;
-    default:
-      UNREACHABLE();
-      return StickerType::Regular;
-  }
-}
-
-td_api::object_ptr<td_api::StickerType> get_sticker_type_object(StickerType sticker_type) {
-  switch (sticker_type) {
-    case StickerType::Regular:
-      return td_api::make_object<td_api::stickerTypeRegular>();
-    case StickerType::Mask:
-      return td_api::make_object<td_api::stickerTypeMask>();
-    case StickerType::CustomEmoji:
-      return td_api::make_object<td_api::stickerTypeCustomEmoji>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, StickerType sticker_type) {
-  switch (sticker_type) {
-    case StickerType::Regular:
-      return string_builder << "Regular";
-    case StickerType::Mask:
-      return string_builder << "Mask";
-    case StickerType::CustomEmoji:
-      return string_builder << "CustomEmoji";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickerType.h b/third-party/td/td/td/telegram/StickerType.h
deleted file mode 100644
index f7e0149c64..0000000000
--- a/third-party/td/td/td/telegram/StickerType.h
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-// update store_sticker/store_sticker_set when this type changes
-enum class StickerType : int32 { Regular, Mask, CustomEmoji };
-
-static constexpr int32 MAX_STICKER_TYPE = 3;
-
-StickerType get_sticker_type(bool is_mask, bool is_custom_emoji);
-
-StickerType get_sticker_type(const td_api::object_ptr<td_api::StickerType> &type);
-
-td_api::object_ptr<td_api::StickerType> get_sticker_type_object(StickerType sticker_type);
-
-StringBuilder &operator<<(StringBuilder &string_builder, StickerType sticker_type);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickersManager.cpp b/third-party/td/td/td/telegram/StickersManager.cpp
deleted file mode 100644
index f8b2a0d124..0000000000
--- a/third-party/td/td/td/telegram/StickersManager.cpp
+++ /dev/null
@@ -1,10261 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StickersManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/EmojiGroup.hpp"
-#include "td/telegram/EmojiStatus.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LanguagePackManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/MtprotoHeader.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Outline.h"
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/PhotoSizeType.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretChatLayer.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Version.h"
-
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/emoji.h"
-#include "td/utils/format.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/MimeType.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <cmath>
-#include <limits>
-#include <type_traits>
-
-namespace td {
-
-class GetAllStickersQuery final : public Td::ResultHandler {
-  StickerType sticker_type_;
-
- public:
-  void send(StickerType sticker_type, int64 hash) {
-    sticker_type_ = sticker_type;
-    switch (sticker_type) {
-      case StickerType::Regular:
-        return send_query(G()->net_query_creator().create(telegram_api::messages_getAllStickers(hash)));
-      case StickerType::Mask:
-        return send_query(G()->net_query_creator().create(telegram_api::messages_getMaskStickers(hash)));
-      case StickerType::CustomEmoji:
-        return send_query(G()->net_query_creator().create(telegram_api::messages_getEmojiStickers(hash)));
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_getMaskStickers::ReturnType,
-                               telegram_api::messages_getAllStickers::ReturnType>::value,
-                  "");
-    static_assert(std::is_same<telegram_api::messages_getEmojiStickers::ReturnType,
-                               telegram_api::messages_getAllStickers::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_getAllStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for get all " << sticker_type_ << " stickers: " << to_string(ptr);
-    td_->stickers_manager_->on_get_installed_sticker_sets(sticker_type_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for get all stickers: " << status;
-    }
-    td_->stickers_manager_->on_get_installed_sticker_sets_failed(sticker_type_, std::move(status));
-  }
-};
-
-class SearchStickersQuery final : public Td::ResultHandler {
-  string parameters_;
-  StickerType sticker_type_;
-  bool is_first_;
-
- public:
-  void send(string &&parameters, StickerType sticker_type, const string &emoji, const string &query,
-            vector<string> input_language_codes, int32 offset, int32 limit, int64 hash) {
-    parameters_ = std::move(parameters);
-    sticker_type_ = sticker_type;
-    is_first_ = offset == 0;
-    int32 flags = 0;
-    if (sticker_type == StickerType::CustomEmoji) {
-      flags |= telegram_api::messages_searchStickers::EMOJIS_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_searchStickers(
-        flags, false /*ignored*/, query, emoji, std::move(input_language_codes), offset, limit, hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_searchStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for search stickers: " << to_string(ptr);
-    td_->stickers_manager_->on_find_stickers_by_query_success(sticker_type_, parameters_, is_first_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for search stickers: " << status;
-    }
-    td_->stickers_manager_->on_find_stickers_by_query_fail(sticker_type_, parameters_, std::move(status));
-  }
-};
-
-class GetStickersQuery final : public Td::ResultHandler {
-  string emoji_;
-
- public:
-  void send(string &&emoji, int64 hash) {
-    emoji_ = std::move(emoji);
-    send_query(G()->net_query_creator().create(telegram_api::messages_getStickers(emoji_, hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for search stickers by emoji: " << to_string(ptr);
-    td_->stickers_manager_->on_find_stickers_success(emoji_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for search stickers by emoji: " << status;
-    }
-    td_->stickers_manager_->on_find_stickers_fail(emoji_, std::move(status));
-  }
-};
-
-class SearchCustomEmojiQuery final : public Td::ResultHandler {
-  string emoji_;
-
- public:
-  void send(string &&emoji, int64 hash) {
-    emoji_ = std::move(emoji);
-    send_query(G()->net_query_creator().create(telegram_api::messages_searchCustomEmoji(emoji_, hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_searchCustomEmoji>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for search custom emoji: " << to_string(ptr);
-    td_->stickers_manager_->on_find_custom_emojis_success(emoji_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for search stickers: " << status;
-    }
-    td_->stickers_manager_->on_find_custom_emojis_fail(emoji_, std::move(status));
-  }
-};
-
-class GetEmojiKeywordsLanguageQuery final : public Td::ResultHandler {
-  Promise<vector<string>> promise_;
-
- public:
-  explicit GetEmojiKeywordsLanguageQuery(Promise<vector<string>> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<string> &&language_codes) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getEmojiKeywordsLanguages(std::move(language_codes))));
-  }
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getEmojiKeywordsLanguages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result =
-        transform(result_ptr.move_as_ok(), [](auto &&emoji_language) { return std::move(emoji_language->lang_code_); });
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetEmojiKeywordsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> promise_;
-
- public:
-  explicit GetEmojiKeywordsQuery(Promise<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &language_code) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getEmojiKeywords(language_code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getEmojiKeywords>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetEmojiKeywordsDifferenceQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> promise_;
-
- public:
-  explicit GetEmojiKeywordsDifferenceQuery(
-      Promise<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &language_code, int32 version) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getEmojiKeywordsDifference(language_code, version)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getEmojiKeywordsDifference>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetEmojiUrlQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit GetEmojiUrlQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &language_code) {
-    send_query(G()->net_query_creator().create(telegram_api::messages_getEmojiURL(language_code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getEmojiURL>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    promise_.set_value(std::move(ptr->url_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetArchivedStickerSetsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  StickerSetId offset_sticker_set_id_;
-  StickerType sticker_type_;
-
- public:
-  explicit GetArchivedStickerSetsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(StickerType sticker_type, StickerSetId offset_sticker_set_id, int32 limit) {
-    offset_sticker_set_id_ = offset_sticker_set_id;
-    sticker_type_ = sticker_type;
-
-    int32 flags = 0;
-    if (sticker_type_ == StickerType::Mask) {
-      flags |= telegram_api::messages_getArchivedStickers::MASKS_MASK;
-    }
-    if (sticker_type_ == StickerType::CustomEmoji) {
-      flags |= telegram_api::messages_getArchivedStickers::EMOJIS_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_getArchivedStickers(
-        flags, false /*ignored*/, false /*ignored*/, offset_sticker_set_id.get(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getArchivedStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetArchivedStickerSetsQuery: " << to_string(ptr);
-    td_->stickers_manager_->on_get_archived_sticker_sets(sticker_type_, offset_sticker_set_id_, std::move(ptr->sets_),
-                                                         ptr->count_);
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetFeaturedStickerSetsQuery final : public Td::ResultHandler {
-  StickerType sticker_type_;
-
- public:
-  void send(StickerType sticker_type, int64 hash) {
-    sticker_type_ = sticker_type;
-    switch (sticker_type) {
-      case StickerType::Regular:
-        send_query(G()->net_query_creator().create(telegram_api::messages_getFeaturedStickers(hash)));
-        break;
-      case StickerType::CustomEmoji:
-        send_query(G()->net_query_creator().create(telegram_api::messages_getFeaturedEmojiStickers(hash)));
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_getFeaturedStickers::ReturnType,
-                               telegram_api::messages_getFeaturedEmojiStickers::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_getFeaturedStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetFeaturedStickerSetsQuery: " << to_string(ptr);
-    td_->stickers_manager_->on_get_featured_sticker_sets(sticker_type_, -1, -1, 0, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    td_->stickers_manager_->on_get_featured_sticker_sets_failed(sticker_type_, -1, -1, 0, std::move(status));
-  }
-};
-
-class GetOldFeaturedStickerSetsQuery final : public Td::ResultHandler {
-  int32 offset_;
-  int32 limit_;
-  uint32 generation_;
-
- public:
-  void send(StickerType sticker_type, int32 offset, int32 limit, uint32 generation) {
-    CHECK(sticker_type == StickerType::Regular);
-    offset_ = offset;
-    limit_ = limit;
-    generation_ = generation;
-    send_query(G()->net_query_creator().create(telegram_api::messages_getOldFeaturedStickers(offset, limit, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getOldFeaturedStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetOldFeaturedStickerSetsQuery: " << to_string(ptr);
-    td_->stickers_manager_->on_get_featured_sticker_sets(StickerType::Regular, offset_, limit_, generation_,
-                                                         std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    td_->stickers_manager_->on_get_featured_sticker_sets_failed(StickerType::Regular, offset_, limit_, generation_,
-                                                                std::move(status));
-  }
-};
-
-class GetAttachedStickerSetsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  FileId file_id_;
-  string file_reference_;
-
- public:
-  explicit GetAttachedStickerSetsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(FileId file_id, string &&file_reference,
-            tl_object_ptr<telegram_api::InputStickeredMedia> &&input_stickered_media) {
-    file_id_ = file_id;
-    file_reference_ = std::move(file_reference);
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getAttachedStickers(std::move(input_stickered_media))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getAttachedStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->stickers_manager_->on_get_attached_sticker_sets(file_id_, result_ptr.move_as_ok());
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      VLOG(file_references) << "Receive " << status << " for " << file_id_;
-      td_->file_manager_->delete_file_reference(file_id_, file_reference_);
-      td_->file_reference_manager_->repair_file_reference(
-          file_id_,
-          PromiseCreator::lambda([file_id = file_id_, promise = std::move(promise_)](Result<Unit> result) mutable {
-            if (result.is_error()) {
-              return promise.set_error(Status::Error(400, "Failed to find the file"));
-            }
-
-            send_closure(G()->stickers_manager(), &StickersManager::send_get_attached_stickers_query, file_id,
-                         std::move(promise));
-          }));
-      return;
-    }
-
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetRecentStickersQuery final : public Td::ResultHandler {
-  bool is_repair_ = false;
-  bool is_attached_ = false;
-
- public:
-  void send(bool is_repair, bool is_attached, int64 hash) {
-    is_repair_ = is_repair;
-    is_attached_ = is_attached;
-    int32 flags = 0;
-    if (is_attached) {
-      flags |= telegram_api::messages_getRecentStickers::ATTACHED_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_getRecentStickers(flags, is_attached /*ignored*/, hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getRecentStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for get recent " << (is_attached_ ? "attached " : "")
-               << "stickers: " << to_string(ptr);
-    td_->stickers_manager_->on_get_recent_stickers(is_repair_, is_attached_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for get recent " << (is_attached_ ? "attached " : "") << "stickers: " << status;
-    }
-    td_->stickers_manager_->on_get_recent_stickers_failed(is_repair_, is_attached_, std::move(status));
-  }
-};
-
-class SaveRecentStickerQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  FileId file_id_;
-  string file_reference_;
-  bool unsave_ = false;
-  bool is_attached_;
-
- public:
-  explicit SaveRecentStickerQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool is_attached, FileId file_id, tl_object_ptr<telegram_api::inputDocument> &&input_document,
-            bool unsave) {
-    CHECK(input_document != nullptr);
-    CHECK(file_id.is_valid());
-    file_id_ = file_id;
-    file_reference_ = input_document->file_reference_.as_slice().str();
-    unsave_ = unsave;
-    is_attached_ = is_attached;
-
-    int32 flags = 0;
-    if (is_attached) {
-      flags |= telegram_api::messages_saveRecentSticker::ATTACHED_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_saveRecentSticker(flags, is_attached /*ignored*/, std::move(input_document), unsave)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_saveRecentSticker>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for save recent " << (is_attached_ ? "attached " : "") << "sticker: " << result;
-    if (!result) {
-      td_->stickers_manager_->reload_recent_stickers(is_attached_, true);
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      VLOG(file_references) << "Receive " << status << " for " << file_id_;
-      td_->file_manager_->delete_file_reference(file_id_, file_reference_);
-      td_->file_reference_manager_->repair_file_reference(
-          file_id_, PromiseCreator::lambda([sticker_id = file_id_, is_attached = is_attached_, unsave = unsave_,
-                                            promise = std::move(promise_)](Result<Unit> result) mutable {
-            if (result.is_error()) {
-              return promise.set_error(Status::Error(400, "Failed to find the sticker"));
-            }
-
-            send_closure(G()->stickers_manager(), &StickersManager::send_save_recent_sticker_query, is_attached,
-                         sticker_id, unsave, std::move(promise));
-          }));
-      return;
-    }
-
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for save recent " << (is_attached_ ? "attached " : "") << "sticker: " << status;
-    }
-    td_->stickers_manager_->reload_recent_stickers(is_attached_, true);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ClearRecentStickersQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  bool is_attached_;
-
- public:
-  explicit ClearRecentStickersQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool is_attached) {
-    is_attached_ = is_attached;
-
-    int32 flags = 0;
-    if (is_attached) {
-      flags |= telegram_api::messages_clearRecentStickers::ATTACHED_MASK;
-    }
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_clearRecentStickers(flags, is_attached /*ignored*/)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_clearRecentStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for clear recent " << (is_attached_ ? "attached " : "") << "stickers: " << result;
-    if (!result) {
-      td_->stickers_manager_->reload_recent_stickers(is_attached_, true);
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for clear recent " << (is_attached_ ? "attached " : "") << "stickers: " << status;
-    }
-    td_->stickers_manager_->reload_recent_stickers(is_attached_, true);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetFavedStickersQuery final : public Td::ResultHandler {
-  bool is_repair_ = false;
-
- public:
-  void send(bool is_repair, int64 hash) {
-    is_repair_ = is_repair;
-    send_query(G()->net_query_creator().create(telegram_api::messages_getFavedStickers(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getFavedStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    td_->stickers_manager_->on_get_favorite_stickers(is_repair_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for get favorite stickers: " << status;
-    }
-    td_->stickers_manager_->on_get_favorite_stickers_failed(is_repair_, std::move(status));
-  }
-};
-
-class FaveStickerQuery final : public Td::ResultHandler {
-  FileId file_id_;
-  string file_reference_;
-  bool unsave_ = false;
-
-  Promise<Unit> promise_;
-
- public:
-  explicit FaveStickerQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(FileId file_id, tl_object_ptr<telegram_api::inputDocument> &&input_document, bool unsave) {
-    CHECK(input_document != nullptr);
-    CHECK(file_id.is_valid());
-    file_id_ = file_id;
-    file_reference_ = input_document->file_reference_.as_slice().str();
-    unsave_ = unsave;
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_faveSticker(std::move(input_document), unsave)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_faveSticker>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for fave sticker: " << result;
-    if (!result) {
-      td_->stickers_manager_->reload_favorite_stickers(true);
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      VLOG(file_references) << "Receive " << status << " for " << file_id_;
-      td_->file_manager_->delete_file_reference(file_id_, file_reference_);
-      td_->file_reference_manager_->repair_file_reference(
-          file_id_, PromiseCreator::lambda([sticker_id = file_id_, unsave = unsave_,
-                                            promise = std::move(promise_)](Result<Unit> result) mutable {
-            if (result.is_error()) {
-              return promise.set_error(Status::Error(400, "Failed to find the sticker"));
-            }
-
-            send_closure(G()->stickers_manager(), &StickersManager::send_fave_sticker_query, sticker_id, unsave,
-                         std::move(promise));
-          }));
-      return;
-    }
-
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for fave sticker: " << status;
-    }
-    td_->stickers_manager_->reload_favorite_stickers(true);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderStickerSetsQuery final : public Td::ResultHandler {
-  StickerType sticker_type_;
-
- public:
-  void send(StickerType sticker_type, const vector<StickerSetId> &sticker_set_ids) {
-    sticker_type_ = sticker_type;
-    int32 flags = 0;
-    if (sticker_type == StickerType::Mask) {
-      flags |= telegram_api::messages_reorderStickerSets::MASKS_MASK;
-    }
-    if (sticker_type == StickerType::CustomEmoji) {
-      flags |= telegram_api::messages_reorderStickerSets::EMOJIS_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_reorderStickerSets(
-        flags, false /*ignored*/, false /*ignored*/, StickersManager::convert_sticker_set_ids(sticker_set_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_reorderStickerSets>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    if (!result) {
-      return on_error(Status::Error(400, "Result is false"));
-    }
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for ReorderStickerSetsQuery: " << status;
-    }
-    td_->stickers_manager_->reload_installed_sticker_sets(sticker_type_, true);
-  }
-};
-
-class GetStickerSetQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  StickerSetId sticker_set_id_;
-  string sticker_set_name_;
-
- public:
-  explicit GetStickerSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(StickerSetId sticker_set_id, tl_object_ptr<telegram_api::InputStickerSet> &&input_sticker_set, int32 hash) {
-    sticker_set_id_ = sticker_set_id;
-    if (input_sticker_set->get_id() == telegram_api::inputStickerSetShortName::ID) {
-      sticker_set_name_ =
-          static_cast<const telegram_api::inputStickerSetShortName *>(input_sticker_set.get())->short_name_;
-    }
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getStickerSet(std::move(input_sticker_set), hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getStickerSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto set_ptr = result_ptr.move_as_ok();
-    if (set_ptr->get_id() == telegram_api::messages_stickerSet::ID) {
-      auto set = static_cast<telegram_api::messages_stickerSet *>(set_ptr.get());
-      constexpr int64 GREAT_MINDS_COLOR_SET_ID = 151353307481243663;
-      if (set->set_->id_ == GREAT_MINDS_COLOR_SET_ID) {
-        string great_minds_name = "TelegramGreatMinds";
-        if (sticker_set_id_.get() == StickersManager::GREAT_MINDS_SET_ID ||
-            trim(to_lower(sticker_set_name_)) == to_lower(great_minds_name)) {
-          set->set_->id_ = StickersManager::GREAT_MINDS_SET_ID;
-          set->set_->short_name_ = std::move(great_minds_name);
-        }
-      }
-    }
-
-    td_->stickers_manager_->on_get_messages_sticker_set(sticker_set_id_, std::move(set_ptr), true,
-                                                        "GetStickerSetQuery");
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for GetStickerSetQuery: " << status;
-    td_->stickers_manager_->on_load_sticker_set_fail(sticker_set_id_, status);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStickerSetNameQuery final : public Td::ResultHandler {
-  StickerSetId sticker_set_id_;
-
- public:
-  void send(StickerSetId sticker_set_id, telegram_api::object_ptr<telegram_api::InputStickerSet> &&input_sticker_set) {
-    sticker_set_id_ = sticker_set_id;
-    send_query(G()->net_query_creator().create(telegram_api::messages_getStickerSet(std::move(input_sticker_set), 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getStickerSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->stickers_manager_->on_get_sticker_set_name(sticker_set_id_, result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    td_->stickers_manager_->on_get_sticker_set_name(sticker_set_id_, nullptr);
-  }
-};
-
-class ReloadSpecialStickerSetQuery final : public Td::ResultHandler {
-  StickerSetId sticker_set_id_;
-  SpecialStickerSetType type_;
-
- public:
-  void send(StickerSetId sticker_set_id, SpecialStickerSetType type, int32 hash) {
-    sticker_set_id_ = sticker_set_id;
-    type_ = std::move(type);
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getStickerSet(type_.get_input_sticker_set(), hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getStickerSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto set_ptr = result_ptr.move_as_ok();
-    if (set_ptr->get_id() == telegram_api::messages_stickerSet::ID) {
-      // sticker_set_id_ must be replaced always, because it could have been changed
-      // we must not pass sticker_set_id_ in order to allow its change
-      sticker_set_id_ = td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), std::move(set_ptr), true,
-                                                                            "ReloadSpecialStickerSetQuery");
-    } else {
-      CHECK(set_ptr->get_id() == telegram_api::messages_stickerSetNotModified::ID);
-      // we received telegram_api::messages_stickerSetNotModified, and must pass sticker_set_id_ to handle it
-      // sticker_set_id_ can't be changed by this call
-      td_->stickers_manager_->on_get_messages_sticker_set(sticker_set_id_, std::move(set_ptr), false,
-                                                          "ReloadSpecialStickerSetQuery");
-    }
-    if (!sticker_set_id_.is_valid()) {
-      return on_error(Status::Error(500, "Failed to add special sticker set"));
-    }
-    td_->stickers_manager_->on_get_special_sticker_set(type_, sticker_set_id_);
-  }
-
-  void on_error(Status status) final {
-    LOG(WARNING) << "Receive error for ReloadSpecialStickerSetQuery: " << status;
-    td_->stickers_manager_->on_load_special_sticker_set(type_, std::move(status));
-  }
-};
-
-class SearchStickerSetsQuery final : public Td::ResultHandler {
-  StickerType sticker_type_;
-  string query_;
-
- public:
-  void send(StickerType sticker_type, string query) {
-    sticker_type_ = sticker_type;
-    query_ = std::move(query);
-    switch (sticker_type) {
-      case StickerType::Regular:
-        send_query(
-            G()->net_query_creator().create(telegram_api::messages_searchStickerSets(0, false /*ignored*/, query_, 0)));
-        break;
-      case StickerType::CustomEmoji:
-        send_query(G()->net_query_creator().create(
-            telegram_api::messages_searchEmojiStickerSets(0, false /*ignored*/, query_, 0)));
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_searchStickerSets::ReturnType,
-                               telegram_api::messages_searchEmojiStickerSets::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_searchStickerSets>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for search " << sticker_type_ << " sticker sets: " << to_string(ptr);
-    td_->stickers_manager_->on_find_sticker_sets_success(sticker_type_, query_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for search " << sticker_type_ << " sticker sets: " << status;
-    }
-    td_->stickers_manager_->on_find_sticker_sets_fail(sticker_type_, query_, std::move(status));
-  }
-};
-
-class InstallStickerSetQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  StickerSetId set_id_;
-  bool is_archived_;
-
- public:
-  explicit InstallStickerSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(StickerSetId set_id, tl_object_ptr<telegram_api::InputStickerSet> &&input_set, bool is_archived) {
-    set_id_ = set_id;
-    is_archived_ = is_archived;
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_installStickerSet(std::move(input_set), is_archived)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_installStickerSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->stickers_manager_->on_install_sticker_set(set_id_, is_archived_, result_ptr.move_as_ok());
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UninstallStickerSetQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  StickerSetId set_id_;
-
- public:
-  explicit UninstallStickerSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(StickerSetId set_id, tl_object_ptr<telegram_api::InputStickerSet> &&input_set) {
-    set_id_ = set_id;
-    send_query(G()->net_query_creator().create(telegram_api::messages_uninstallStickerSet(std::move(input_set))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_uninstallStickerSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    if (!result) {
-      LOG(WARNING) << "Receive false in result to uninstallStickerSet";
-    } else {
-      td_->stickers_manager_->on_uninstall_sticker_set(set_id_);
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadFeaturedStickerSetsQuery final : public Td::ResultHandler {
- public:
-  void send(const vector<StickerSetId> &sticker_set_ids) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_readFeaturedStickers(StickersManager::convert_sticker_set_ids(sticker_set_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_readFeaturedStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.move_as_ok();
-    (void)result;
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for ReadFeaturedStickerSetsQuery: " << status;
-    }
-    td_->stickers_manager_->reload_featured_sticker_sets(StickerType::Regular, true);
-    td_->stickers_manager_->reload_featured_sticker_sets(StickerType::CustomEmoji, true);
-  }
-};
-
-class UploadStickerFileQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  FileUploadId file_upload_id_;
-  bool is_url_ = false;
-  bool was_uploaded_ = false;
-
- public:
-  explicit UploadStickerFileQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputPeer> &&input_peer, FileUploadId file_upload_id, bool is_url,
-            tl_object_ptr<telegram_api::InputMedia> &&input_media) {
-    CHECK(input_peer != nullptr);
-    CHECK(input_media != nullptr);
-    file_upload_id_ = file_upload_id;
-    is_url_ = is_url;
-    was_uploaded_ = FileManager::extract_was_uploaded(input_media);
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_uploadMedia(0, string(), std::move(input_peer), std::move(input_media))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_uploadMedia>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->stickers_manager_->on_uploaded_sticker_file(file_upload_id_, is_url_, result_ptr.move_as_ok(),
-                                                     std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (was_uploaded_) {
-      CHECK(file_upload_id_.is_valid());
-      auto bad_parts = FileManager::get_missing_file_parts(status);
-      if (!bad_parts.empty()) {
-        // TODO td_->stickers_manager_->on_upload_sticker_file_parts_missing(file_upload_id_, std::move(bad_parts));
-        // return;
-      } else {
-        td_->file_manager_->delete_partial_remote_location_if_needed(file_upload_id_, status);
-      }
-    } else if (FileReferenceManager::is_file_reference_error(status)) {
-      LOG(ERROR) << "Receive file reference error for UploadStickerFileQuery";
-    }
-    td_->file_manager_->cancel_upload(file_upload_id_);
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SuggestStickerSetShortNameQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit SuggestStickerSetShortNameQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &title) {
-    send_query(G()->net_query_creator().create(telegram_api::stickers_suggestShortName(title)));
-  }
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_suggestShortName>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    promise_.set_value(std::move(ptr->short_name_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "TITLE_INVALID") {
-      return promise_.set_value(string());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CheckStickerSetShortNameQuery final : public Td::ResultHandler {
-  Promise<bool> promise_;
-
- public:
-  explicit CheckStickerSetShortNameQuery(Promise<bool> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &short_name) {
-    send_query(G()->net_query_creator().create(telegram_api::stickers_checkShortName(short_name)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_checkShortName>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CreateNewStickerSetQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::stickerSet>> promise_;
-
- public:
-  explicit CreateNewStickerSetQuery(Promise<td_api::object_ptr<td_api::stickerSet>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(tl_object_ptr<telegram_api::InputUser> &&input_user, const string &title, const string &short_name,
-            StickerType sticker_type, bool has_text_color,
-            vector<tl_object_ptr<telegram_api::inputStickerSetItem>> &&input_stickers, const string &software) {
-    CHECK(input_user != nullptr);
-
-    int32 flags = 0;
-    if (!software.empty()) {
-      flags |= telegram_api::stickers_createStickerSet::SOFTWARE_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stickers_createStickerSet(
-            flags, sticker_type == StickerType::Mask, sticker_type == StickerType::CustomEmoji, has_text_color,
-            std::move(input_user), title, short_name, nullptr, std::move(input_stickers), software),
-        {{short_name}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_createStickerSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto sticker_set_id = td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), result_ptr.move_as_ok(),
-                                                                              true, "CreateNewStickerSetQuery");
-    if (!sticker_set_id.is_valid()) {
-      return on_error(Status::Error(500, "Created sticker set not found"));
-    }
-    promise_.set_value(td_->stickers_manager_->get_sticker_set_object(sticker_set_id));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AddStickerToSetQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit AddStickerToSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &short_name, telegram_api::object_ptr<telegram_api::inputStickerSetItem> &&input_sticker,
-            telegram_api::object_ptr<telegram_api::inputDocument> &&input_document) {
-    if (input_document != nullptr) {
-      send_query(G()->net_query_creator().create(
-          telegram_api::stickers_replaceSticker(std::move(input_document), std::move(input_sticker)), {{short_name}}));
-    } else {
-      send_query(G()->net_query_creator().create(
-          telegram_api::stickers_addStickerToSet(make_tl_object<telegram_api::inputStickerSetShortName>(short_name),
-                                                 std::move(input_sticker)),
-          {{short_name}}));
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::stickers_addStickerToSet::ReturnType,
-                               telegram_api::stickers_replaceSticker::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::stickers_addStickerToSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto sticker_set_id = td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), result_ptr.move_as_ok(),
-                                                                              true, "AddStickerToSetQuery");
-    if (!sticker_set_id.is_valid()) {
-      return on_error(Status::Error(500, "Sticker set not found"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetStickerSetThumbnailQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetStickerSetThumbnailQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &short_name, tl_object_ptr<telegram_api::InputDocument> &&input_document) {
-    int32 flags = telegram_api::stickers_setStickerSetThumb::THUMB_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::stickers_setStickerSetThumb(
-            flags, make_tl_object<telegram_api::inputStickerSetShortName>(short_name), std::move(input_document), 0),
-        {{short_name}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_setStickerSetThumb>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto sticker_set_id = td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), result_ptr.move_as_ok(),
-                                                                              true, "SetStickerSetThumbnailQuery");
-    if (!sticker_set_id.is_valid()) {
-      return on_error(Status::Error(500, "Sticker set not found"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetCustomEmojiStickerSetThumbnailQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetCustomEmojiStickerSetThumbnailQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &short_name, CustomEmojiId custom_emoji_id) {
-    int32 flags = telegram_api::stickers_setStickerSetThumb::THUMB_DOCUMENT_ID_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::stickers_setStickerSetThumb(
-            flags, make_tl_object<telegram_api::inputStickerSetShortName>(short_name), nullptr, custom_emoji_id.get()),
-        {{short_name}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_setStickerSetThumb>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto sticker_set_id = td_->stickers_manager_->on_get_messages_sticker_set(
-        StickerSetId(), result_ptr.move_as_ok(), true, "SetCustomEmojiStickerSetThumbnailQuery");
-    if (!sticker_set_id.is_valid()) {
-      return on_error(Status::Error(500, "Sticker set not found"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetStickerSetTitleQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetStickerSetTitleQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &short_name, const string &title) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::stickers_renameStickerSet(
-                                            make_tl_object<telegram_api::inputStickerSetShortName>(short_name), title),
-                                        {{short_name}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_renameStickerSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto sticker_set_id = td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), result_ptr.move_as_ok(),
-                                                                              true, "SetStickerSetTitleQuery");
-    if (!sticker_set_id.is_valid()) {
-      return on_error(Status::Error(500, "Sticker set not found"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteStickerSetQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  string short_name_;
-
- public:
-  explicit DeleteStickerSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &short_name) {
-    short_name_ = short_name;
-    send_query(G()->net_query_creator().create(
-        telegram_api::stickers_deleteStickerSet(make_tl_object<telegram_api::inputStickerSetShortName>(short_name)),
-        {{short_name}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_deleteStickerSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!result_ptr.ok()) {
-      return on_error(Status::Error(500, "Failed to delete sticker set"));
-    }
-    td_->stickers_manager_->on_sticker_set_deleted(short_name_);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SetStickerPositionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit SetStickerPositionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &unique_name, tl_object_ptr<telegram_api::inputDocument> &&input_document, int32 position) {
-    vector<ChainId> chain_ids;
-    if (!unique_name.empty()) {
-      chain_ids.emplace_back(unique_name);
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stickers_changeStickerPosition(std::move(input_document), position), std::move(chain_ids)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_changeStickerPosition>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), result_ptr.move_as_ok(), true,
-                                                        "SetStickerPositionQuery");
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteStickerFromSetQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteStickerFromSetQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &unique_name, tl_object_ptr<telegram_api::inputDocument> &&input_document) {
-    vector<ChainId> chain_ids;
-    if (!unique_name.empty()) {
-      chain_ids.emplace_back(unique_name);
-    }
-    send_query(G()->net_query_creator().create(telegram_api::stickers_removeStickerFromSet(std::move(input_document)),
-                                               std::move(chain_ids)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_removeStickerFromSet>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), result_ptr.move_as_ok(), true,
-                                                        "DeleteStickerFromSetQuery");
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ChangeStickerQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ChangeStickerQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &unique_name, tl_object_ptr<telegram_api::inputDocument> &&input_document, bool edit_emojis,
-            const string &emojis, StickerMaskPosition mask_position, bool edit_keywords, const string &keywords) {
-    vector<ChainId> chain_ids;
-    if (!unique_name.empty()) {
-      chain_ids.emplace_back(unique_name);
-    }
-    int32 flags = 0;
-    if (edit_emojis) {
-      flags |= telegram_api::stickers_changeSticker::EMOJI_MASK;
-    }
-    auto mask_coords = mask_position.get_input_mask_coords();
-    if (mask_coords != nullptr) {
-      flags |= telegram_api::stickers_changeSticker::MASK_COORDS_MASK;
-    }
-    if (edit_keywords) {
-      flags |= telegram_api::stickers_changeSticker::KEYWORDS_MASK;
-    }
-    send_query(
-        G()->net_query_creator().create(telegram_api::stickers_changeSticker(flags, std::move(input_document), emojis,
-                                                                             std::move(mask_coords), keywords),
-                                        std::move(chain_ids)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stickers_changeSticker>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), result_ptr.move_as_ok(), true,
-                                                        "ChangeStickerQuery");
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetMyStickersQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_myStickers>> promise_;
-
- public:
-  explicit GetMyStickersQuery(Promise<telegram_api::object_ptr<telegram_api::messages_myStickers>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(StickerSetId offset_sticker_set_id, int32 limit) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getMyStickers(offset_sticker_set_id.get(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getMyStickers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetMyStickersQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetCustomEmojiDocumentsQuery final : public Td::ResultHandler {
-  Promise<vector<telegram_api::object_ptr<telegram_api::Document>>> promise_;
-
- public:
-  explicit GetCustomEmojiDocumentsQuery(Promise<vector<telegram_api::object_ptr<telegram_api::Document>>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(vector<CustomEmojiId> &&custom_emoji_ids) {
-    auto document_ids =
-        transform(custom_emoji_ids, [](CustomEmojiId custom_emoji_id) { return custom_emoji_id.get(); });
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getCustomEmojiDocuments(std::move(document_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getCustomEmojiDocuments>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetEmojiGroupsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_EmojiGroups>> promise_;
-
- public:
-  explicit GetEmojiGroupsQuery(Promise<telegram_api::object_ptr<telegram_api::messages_EmojiGroups>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(EmojiGroupType group_type, int32 hash) {
-    switch (group_type) {
-      case EmojiGroupType::Default:
-        send_query(G()->net_query_creator().create(telegram_api::messages_getEmojiGroups(hash)));
-        break;
-      case EmojiGroupType::EmojiStatus:
-        send_query(G()->net_query_creator().create(telegram_api::messages_getEmojiStatusGroups(hash)));
-        break;
-      case EmojiGroupType::ProfilePhoto:
-        send_query(G()->net_query_creator().create(telegram_api::messages_getEmojiProfilePhotoGroups(hash)));
-        break;
-      case EmojiGroupType::RegularStickers:
-        send_query(G()->net_query_creator().create(telegram_api::messages_getEmojiStickerGroups(hash)));
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::messages_getEmojiGroups::ReturnType,
-                               telegram_api::messages_getEmojiStatusGroups::ReturnType>::value,
-                  "");
-    static_assert(std::is_same<telegram_api::messages_getEmojiGroups::ReturnType,
-                               telegram_api::messages_getEmojiProfilePhotoGroups::ReturnType>::value,
-                  "");
-    static_assert(std::is_same<telegram_api::messages_getEmojiGroups::ReturnType,
-                               telegram_api::messages_getEmojiStickerGroups::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::messages_getEmojiGroups>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetDefaultDialogPhotoEmojisQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::EmojiList>> promise_;
-
- public:
-  explicit GetDefaultDialogPhotoEmojisQuery(Promise<telegram_api::object_ptr<telegram_api::EmojiList>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(StickerListType sticker_list_type, int64 hash) {
-    switch (sticker_list_type) {
-      case StickerListType::DialogPhoto:
-        send_query(G()->net_query_creator().create(telegram_api::account_getDefaultGroupPhotoEmojis(hash)));
-        break;
-      case StickerListType::UserProfilePhoto:
-        send_query(G()->net_query_creator().create(telegram_api::account_getDefaultProfilePhotoEmojis(hash)));
-        break;
-      case StickerListType::Background:
-        send_query(G()->net_query_creator().create(telegram_api::account_getDefaultBackgroundEmojis(hash)));
-        break;
-      case StickerListType::DisallowedChannelEmojiStatus:
-        send_query(G()->net_query_creator().create(telegram_api::account_getChannelRestrictedStatusEmojis(hash)));
-        break;
-      default:
-        UNREACHABLE();
-        break;
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::account_getDefaultProfilePhotoEmojis::ReturnType,
-                               telegram_api::account_getDefaultGroupPhotoEmojis::ReturnType>::value,
-                  "");
-    static_assert(std::is_same<telegram_api::account_getDefaultBackgroundEmojis::ReturnType,
-                               telegram_api::account_getDefaultGroupPhotoEmojis::ReturnType>::value,
-                  "");
-    static_assert(std::is_same<telegram_api::account_getChannelRestrictedStatusEmojis::ReturnType,
-                               telegram_api::account_getDefaultGroupPhotoEmojis::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::account_getDefaultGroupPhotoEmojis>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendAnimatedEmojiClicksQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  string emoji_;
-
- public:
-  void send(DialogId dialog_id, tl_object_ptr<telegram_api::InputPeer> &&input_peer,
-            tl_object_ptr<telegram_api::sendMessageEmojiInteraction> &&action) {
-    dialog_id_ = dialog_id;
-    CHECK(input_peer != nullptr);
-    CHECK(action != nullptr);
-    emoji_ = action->emoticon_;
-
-    int32 flags = 0;
-    send_query(G()->net_query_creator().create(
-        telegram_api::messages_setTyping(flags, std::move(input_peer), 0, std::move(action))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_setTyping>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    // ignore result
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendAnimatedEmojiClicksQuery")) {
-      LOG(INFO) << "Receive error for send animated emoji clicks: " << status;
-    }
-
-    td_->stickers_manager_->on_send_animated_emoji_clicks(dialog_id_, emoji_);
-  }
-};
-
-template <class StorerT>
-void StickersManager::FoundStickers::store(StorerT &storer) const {
-  StickersManager *stickers_manager = storer.context()->td().get_actor_unsafe()->stickers_manager_.get();
-  td::store(narrow_cast<int32>(sticker_ids_.size()), storer);
-  for (auto sticker_id : sticker_ids_) {
-    stickers_manager->store_sticker(sticker_id, false, storer, "FoundStickers");
-  }
-  td::store(cache_time_, storer);
-  store_time(next_reload_time_, storer);
-}
-
-template <class ParserT>
-void StickersManager::FoundStickers::parse(ParserT &parser) {
-  StickersManager *stickers_manager = parser.context()->td().get_actor_unsafe()->stickers_manager_.get();
-  int32 size = parser.fetch_int();
-  sticker_ids_.resize(size);
-  for (auto &sticker_id : sticker_ids_) {
-    sticker_id = stickers_manager->parse_sticker(false, parser);
-  }
-  td::parse(cache_time_, parser);
-  parse_time(next_reload_time_, parser);
-}
-
-class StickersManager::StickerListLogEvent {
- public:
-  vector<FileId> sticker_ids;
-
-  StickerListLogEvent() = default;
-
-  explicit StickerListLogEvent(vector<FileId> sticker_ids) : sticker_ids(std::move(sticker_ids)) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    StickersManager *stickers_manager = storer.context()->td().get_actor_unsafe()->stickers_manager_.get();
-    td::store(narrow_cast<int32>(sticker_ids.size()), storer);
-    for (auto sticker_id : sticker_ids) {
-      stickers_manager->store_sticker(sticker_id, false, storer, "StickerListLogEvent");
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    StickersManager *stickers_manager = parser.context()->td().get_actor_unsafe()->stickers_manager_.get();
-    int32 size = parser.fetch_int();
-    sticker_ids.resize(size);
-    for (auto &sticker_id : sticker_ids) {
-      sticker_id = stickers_manager->parse_sticker(false, parser);
-    }
-  }
-};
-
-class StickersManager::StickerSetListLogEvent {
- public:
-  vector<StickerSetId> sticker_set_ids_;
-  bool is_premium_ = false;
-
-  StickerSetListLogEvent() = default;
-
-  StickerSetListLogEvent(vector<StickerSetId> sticker_set_ids, bool is_premium)
-      : sticker_set_ids_(std::move(sticker_set_ids)), is_premium_(is_premium) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_premium_);
-    END_STORE_FLAGS();
-    td::store(sticker_set_ids_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::AddStickerSetListFlags)) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(is_premium_);
-      END_PARSE_FLAGS();
-    }
-    td::parse(sticker_set_ids_, parser);
-  }
-};
-
-class StickersManager::UploadStickerFileCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->stickers_manager(), &StickersManager::on_upload_sticker_file, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->stickers_manager(), &StickersManager::on_upload_sticker_file_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-StickersManager::StickersManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_sticker_file_callback_ = std::make_shared<UploadStickerFileCallback>();
-
-  if (!td_->auth_manager_->is_bot()) {
-    on_update_animated_emoji_zoom();
-    on_update_recent_stickers_limit();
-    on_update_favorite_stickers_limit();
-  }
-
-  next_click_animated_emoji_message_time_ = Time::now();
-  next_update_animated_emoji_clicked_time_ = Time::now();
-}
-
-StickersManager::~StickersManager() {
-  Scheduler::instance()->destroy_on_scheduler(
-      G()->get_gc_scheduler_id(), stickers_, sticker_sets_, short_name_to_sticker_set_id_, attached_sticker_sets_,
-      found_stickers_[0], found_stickers_[1], found_stickers_[2], found_sticker_sets_[0], found_sticker_sets_[1],
-      found_sticker_sets_[2], emoji_language_codes_, emoji_language_code_versions_,
-      emoji_language_code_last_difference_times_, reloaded_emoji_keywords_, premium_gift_messages_, dice_messages_,
-      dice_quick_reply_messages_, emoji_messages_, custom_emoji_messages_, custom_emoji_to_sticker_id_);
-}
-
-void StickersManager::start_up() {
-  init();
-}
-
-void StickersManager::init() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (is_inited_ || !td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  LOG(INFO) << "Init StickersManager";
-  is_inited_ = true;
-
-  {
-    auto &sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_emoji());
-    if (G()->is_test_dc()) {
-      init_special_sticker_set(sticker_set, 1258816259751954, 4879754868529595811, "emojies");
-    } else {
-      init_special_sticker_set(sticker_set, 1258816259751983, 5100237018658464041, "AnimatedEmojies");
-    }
-    load_special_sticker_set_info_from_binlog(sticker_set);
-  }
-  if (!G()->is_test_dc()) {
-    auto &sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_emoji_click());
-    load_special_sticker_set_info_from_binlog(sticker_set);
-  }
-  {
-    auto &sticker_set = add_special_sticker_set(SpecialStickerSetType::premium_gifts());
-    load_special_sticker_set_info_from_binlog(sticker_set);
-  }
-  {
-    auto &sticker_set = add_special_sticker_set(SpecialStickerSetType::generic_animations());
-    load_special_sticker_set_info_from_binlog(sticker_set);
-  }
-  {
-    auto &sticker_set = add_special_sticker_set(SpecialStickerSetType::default_statuses());
-    load_special_sticker_set_info_from_binlog(sticker_set);
-  }
-  {
-    auto &sticker_set = add_special_sticker_set(SpecialStickerSetType::default_channel_statuses());
-    load_special_sticker_set_info_from_binlog(sticker_set);
-  }
-  {
-    auto &sticker_set = add_special_sticker_set(SpecialStickerSetType::default_topic_icons());
-    load_special_sticker_set_info_from_binlog(sticker_set);
-  }
-
-  dice_emojis_str_ = td_->option_manager_->get_option_string("dice_emojis", "🎲\x01🎯\x01🏀\x01⚽\x01⚽️\x01🎰\x01🎳");
-  dice_emojis_ = full_split(dice_emojis_str_, '\x01');
-  for (auto &dice_emoji : dice_emojis_) {
-    auto &animated_dice_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_dice(dice_emoji));
-    load_special_sticker_set_info_from_binlog(animated_dice_sticker_set);
-  }
-  send_closure(G()->td(), &Td::send_update, get_update_dice_emojis_object());
-
-  on_update_dice_success_values();
-  on_update_dice_emojis();
-
-  on_update_emoji_sounds();
-
-  on_update_disable_animated_emojis();
-  if (!disable_animated_emojis_) {
-    load_special_sticker_set(add_special_sticker_set(SpecialStickerSetType::animated_emoji()));
-  }
-  load_special_sticker_set(add_special_sticker_set(SpecialStickerSetType::premium_gifts()));
-
-  if (G()->use_sqlite_pmc()) {
-    auto old_featured_sticker_set_count_str = G()->td_db()->get_binlog_pmc()->get("old_featured_sticker_set_count");
-    if (!old_featured_sticker_set_count_str.empty()) {
-      old_featured_sticker_set_count_[static_cast<int32>(StickerType::Regular)] =
-          to_integer<int32>(old_featured_sticker_set_count_str);
-    }
-    if (!G()->td_db()->get_binlog_pmc()->get("invalidate_old_featured_sticker_sets").empty()) {
-      invalidate_old_featured_sticker_sets(StickerType::Regular);
-    }
-  } else {
-    G()->td_db()->get_binlog_pmc()->erase("old_featured_sticker_set_count");
-    G()->td_db()->get_binlog_pmc()->erase("invalidate_old_featured_sticker_sets");
-  }
-
-  G()->td_db()->get_binlog_pmc()->erase("animated_dice_sticker_set");         // legacy
-  td_->option_manager_->set_option_empty("animated_dice_sticker_set_name");   // legacy
-  td_->option_manager_->set_option_empty("animated_emoji_sticker_set_name");  // legacy
-}
-
-StickersManager::SpecialStickerSet &StickersManager::add_special_sticker_set(const SpecialStickerSetType &type) {
-  CHECK(!type.is_empty());
-  auto &result_ptr = special_sticker_sets_[type];
-  if (result_ptr == nullptr) {
-    result_ptr = make_unique<SpecialStickerSet>();
-  }
-  auto &result = *result_ptr;
-  if (result.type_.is_empty()) {
-    result.type_ = type;
-  } else {
-    CHECK(result.type_ == type);
-  }
-  return result;
-}
-
-void StickersManager::init_special_sticker_set(SpecialStickerSet &sticker_set, int64 sticker_set_id, int64 access_hash,
-                                               string name) {
-  sticker_set.id_ = StickerSetId(sticker_set_id);
-  sticker_set.access_hash_ = access_hash;
-  sticker_set.short_name_ = std::move(name);
-}
-
-void StickersManager::load_special_sticker_set_info_from_binlog(SpecialStickerSet &sticker_set) {
-  if (G()->use_sqlite_pmc()) {
-    string sticker_set_string = G()->td_db()->get_binlog_pmc()->get(sticker_set.type_.type_);
-    if (!sticker_set_string.empty()) {
-      auto parts = full_split(sticker_set_string);
-      if (parts.size() != 3) {
-        LOG(ERROR) << "Can't parse " << sticker_set_string;
-      } else {
-        auto r_sticker_set_id = to_integer_safe<int64>(parts[0]);
-        auto r_sticker_set_access_hash = to_integer_safe<int64>(parts[1]);
-        auto sticker_set_name = parts[2];
-        if (r_sticker_set_id.is_error() || r_sticker_set_access_hash.is_error() ||
-            clean_username(sticker_set_name) != sticker_set_name || sticker_set_name.empty()) {
-          LOG(ERROR) << "Can't parse " << sticker_set_string;
-        } else {
-          init_special_sticker_set(sticker_set, r_sticker_set_id.ok(), r_sticker_set_access_hash.ok(),
-                                   std::move(sticker_set_name));
-        }
-      }
-    }
-  } else {
-    G()->td_db()->get_binlog_pmc()->erase(sticker_set.type_.type_);
-  }
-
-  if (!sticker_set.id_.is_valid()) {
-    return;
-  }
-
-  add_sticker_set(sticker_set.id_, sticker_set.access_hash_);
-  auto cleaned_username = clean_username(sticker_set.short_name_);
-  if (!cleaned_username.empty()) {
-    short_name_to_sticker_set_id_.set(cleaned_username, sticker_set.id_);
-  }
-}
-
-void StickersManager::load_special_sticker_set_by_type(SpecialStickerSetType type) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto &sticker_set = add_special_sticker_set(type);
-  if (!sticker_set.is_being_loaded_) {
-    return;
-  }
-  sticker_set.is_being_loaded_ = false;
-  load_special_sticker_set(sticker_set);
-}
-
-void StickersManager::load_special_sticker_set(SpecialStickerSet &sticker_set) {
-  CHECK(!td_->auth_manager_->is_bot() || sticker_set.type_ == SpecialStickerSetType::default_topic_icons());
-  if (sticker_set.is_being_loaded_) {
-    return;
-  }
-  sticker_set.is_being_loaded_ = true;
-  LOG(INFO) << "Load " << sticker_set.type_.type_ << ' ' << sticker_set.id_;
-  if (sticker_set.id_.is_valid()) {
-    auto s = get_sticker_set(sticker_set.id_);
-    CHECK(s != nullptr);
-    if (s->was_loaded_) {
-      reload_special_sticker_set(sticker_set, s->is_loaded_ ? s->hash_ : 0);
-      return;
-    }
-
-    auto promise = PromiseCreator::lambda([actor_id = actor_id(this), type = sticker_set.type_](Result<Unit> &&result) {
-      send_closure(actor_id, &StickersManager::on_load_special_sticker_set, type,
-                   result.is_ok() ? Status::OK() : result.move_as_error());
-    });
-    load_sticker_sets({sticker_set.id_}, std::move(promise));
-  } else {
-    reload_special_sticker_set(sticker_set, 0);
-  }
-}
-
-void StickersManager::reload_special_sticker_set_by_type(SpecialStickerSetType type, bool is_recursive) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (disable_animated_emojis_ &&
-      (type == SpecialStickerSetType::animated_emoji() || type == SpecialStickerSetType::animated_emoji_click())) {
-    return;
-  }
-
-  auto &sticker_set = add_special_sticker_set(type);
-  if (sticker_set.is_being_reloaded_) {
-    return;
-  }
-
-  if (!sticker_set.id_.is_valid()) {
-    return reload_special_sticker_set(sticker_set, 0);
-  }
-
-  const auto *s = get_sticker_set(sticker_set.id_);
-  if (s != nullptr && s->is_inited_ && s->was_loaded_) {
-    return reload_special_sticker_set(sticker_set, s->is_loaded_ ? s->hash_ : 0);
-  }
-  if (!is_recursive) {
-    auto promise = PromiseCreator::lambda([actor_id = actor_id(this), type = std::move(type)](Unit result) mutable {
-      send_closure(actor_id, &StickersManager::reload_special_sticker_set_by_type, std::move(type), true);
-    });
-    return load_sticker_sets({sticker_set.id_}, std::move(promise));
-  }
-
-  reload_special_sticker_set(sticker_set, 0);
-}
-
-void StickersManager::reload_special_sticker_set(SpecialStickerSet &sticker_set, int32 hash) {
-  if (sticker_set.is_being_reloaded_) {
-    return;
-  }
-  sticker_set.is_being_reloaded_ = true;
-  td_->create_handler<ReloadSpecialStickerSetQuery>()->send(sticker_set.id_, sticker_set.type_, hash);
-}
-
-void StickersManager::on_load_special_sticker_set(const SpecialStickerSetType &type, Status result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto &special_sticker_set = add_special_sticker_set(type);
-  special_sticker_set.is_being_reloaded_ = false;
-  if (!special_sticker_set.is_being_loaded_) {
-    return;
-  }
-
-  if (result.is_error()) {
-    LOG(INFO) << "Failed to load special sticker set " << type.type_ << ": " << result.error();
-
-    if (type == SpecialStickerSetType::premium_gifts()) {
-      set_promises(pending_get_premium_gift_option_sticker_queries_);
-    }
-
-    // failed to load the special sticker set; repeat after some time
-    create_actor<SleepActor>("RetryLoadSpecialStickerSetActor", Random::fast(300, 600),
-                             PromiseCreator::lambda([actor_id = actor_id(this), type](Unit) mutable {
-                               send_closure(actor_id, &StickersManager::load_special_sticker_set_by_type,
-                                            std::move(type));
-                             }))
-        .release();
-    return;
-  }
-
-  special_sticker_set.is_being_loaded_ = false;
-
-  if (type == SpecialStickerSetType::animated_emoji()) {
-    set_promises(pending_get_animated_emoji_queries_);
-    try_update_animated_emoji_messages();
-    return;
-  }
-  if (type == SpecialStickerSetType::premium_gifts()) {
-    set_promises(pending_get_premium_gift_option_sticker_queries_);
-    try_update_premium_gift_messages();
-    return;
-  }
-  if (type == SpecialStickerSetType::generic_animations()) {
-    set_promises(pending_get_generic_animations_queries_);
-    return;
-  }
-  if (type == SpecialStickerSetType::default_statuses()) {
-    set_promises(pending_get_default_statuses_queries_);
-    return;
-  }
-  if (type == SpecialStickerSetType::default_channel_statuses()) {
-    set_promises(pending_get_default_channel_statuses_queries_);
-    return;
-  }
-  if (type == SpecialStickerSetType::default_topic_icons()) {
-    set_promises(pending_get_default_topic_icons_queries_);
-    return;
-  }
-
-  CHECK(special_sticker_set.id_.is_valid());
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  CHECK(sticker_set != nullptr);
-  CHECK(sticker_set->was_loaded_);
-
-  if (type == SpecialStickerSetType::animated_emoji_click()) {
-    auto pending_get_requests = std::move(pending_get_animated_emoji_click_stickers_);
-    reset_to_empty(pending_get_animated_emoji_click_stickers_);
-    for (auto &pending_request : pending_get_requests) {
-      choose_animated_emoji_click_sticker(sticker_set, std::move(pending_request.message_text_),
-                                          pending_request.message_full_id_, pending_request.start_time_,
-                                          std::move(pending_request.promise_));
-    }
-    auto pending_click_requests = std::move(pending_on_animated_emoji_message_clicked_);
-    reset_to_empty(pending_on_animated_emoji_message_clicked_);
-    for (auto &pending_request : pending_click_requests) {
-      schedule_update_animated_emoji_clicked(sticker_set, pending_request.emoji_, pending_request.message_full_id_,
-                                             std::move(pending_request.clicks_));
-    }
-    return;
-  }
-
-  auto emoji = type.get_dice_emoji();
-  CHECK(!emoji.empty());
-
-  {
-    auto it = dice_messages_.find(emoji);
-    if (it != dice_messages_.end()) {
-      vector<MessageFullId> message_full_ids;
-      it->second.foreach([&](const MessageFullId &message_full_id) { message_full_ids.push_back(message_full_id); });
-      CHECK(!message_full_ids.empty());
-      for (const auto &message_full_id : message_full_ids) {
-        td_->messages_manager_->on_external_update_message_content(message_full_id, "on_load_special_sticker_set");
-      }
-    }
-  }
-  {
-    auto it = dice_quick_reply_messages_.find(emoji);
-    if (it != dice_quick_reply_messages_.end()) {
-      vector<QuickReplyMessageFullId> message_full_ids;
-      it->second.foreach(
-          [&](const QuickReplyMessageFullId &message_full_id) { message_full_ids.push_back(message_full_id); });
-      CHECK(!message_full_ids.empty());
-      for (const auto &message_full_id : message_full_ids) {
-        td_->quick_reply_manager_->on_external_update_message_content(message_full_id, "on_load_special_sticker_set");
-      }
-    }
-  }
-}
-
-void StickersManager::tear_down() {
-  parent_.reset();
-}
-
-StickerType StickersManager::get_sticker_type(FileId file_id) const {
-  const auto *sticker = get_sticker(file_id);
-  CHECK(sticker != nullptr);
-  return sticker->type_;
-}
-
-StickerFormat StickersManager::get_sticker_format(FileId file_id) const {
-  const auto *sticker = get_sticker(file_id);
-  CHECK(sticker != nullptr);
-  return sticker->format_;
-}
-
-bool StickersManager::is_premium_custom_emoji(CustomEmojiId custom_emoji_id, bool default_result) const {
-  auto sticker_id = custom_emoji_to_sticker_id_.get(custom_emoji_id);
-  if (!sticker_id.is_valid()) {
-    return default_result;
-  }
-  const Sticker *s = get_sticker(sticker_id);
-  CHECK(s != nullptr);
-  return s->is_premium_;
-}
-
-bool StickersManager::have_sticker(StickerSetId sticker_set_id, int64 sticker_id) {
-  auto sticker_set = get_sticker_set(sticker_set_id);
-  if (sticker_set == nullptr) {
-    return false;
-  }
-  for (auto file_id : sticker_set->sticker_ids_) {
-    if (get_sticker_id(file_id) == sticker_id) {
-      return true;
-    }
-  }
-  return false;
-}
-
-bool StickersManager::have_custom_emoji(CustomEmojiId custom_emoji_id) {
-  return custom_emoji_to_sticker_id_.count(custom_emoji_id) != 0;
-}
-
-int64 StickersManager::get_sticker_id(FileId sticker_id) const {
-  auto file_view = td_->file_manager_->get_file_view(sticker_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (file_view.is_encrypted() || full_remote_location == nullptr || !full_remote_location->is_document()) {
-    return 0;
-  }
-  return full_remote_location->get_id();
-}
-
-CustomEmojiId StickersManager::get_custom_emoji_id(FileId sticker_id) const {
-  return CustomEmojiId(get_sticker_id(sticker_id));
-}
-
-td_api::object_ptr<td_api::outline> StickersManager::get_sticker_outline_object(FileId file_id, bool for_animated_emoji,
-                                                                                bool for_clicked_animated_emoji) const {
-  const auto *sticker = get_sticker(file_id);
-  if (sticker == nullptr || sticker->minithumbnail_.empty()) {
-    return nullptr;
-  }
-
-  int64 document_id = 0;
-  auto file_view = td_->file_manager_->get_file_view(sticker->file_id_);
-  if (!file_view.is_encrypted()) {
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    if (full_remote_location != nullptr && full_remote_location->is_document()) {
-      document_id = full_remote_location->get_id();
-    }
-  }
-  double zoom = 1.0;
-  if ((is_sticker_format_vector(sticker->format_) || sticker->type_ == StickerType::CustomEmoji) &&
-      (for_animated_emoji || for_clicked_animated_emoji)) {
-    if (sticker->type_ == StickerType::CustomEmoji &&
-        max(sticker->dimensions_.width, sticker->dimensions_.height) <= 100) {
-      zoom *= 5.12;
-    }
-    if (for_clicked_animated_emoji) {
-      zoom *= 3;
-    }
-  }
-  return get_outline_object(sticker->minithumbnail_, zoom, PSLICE() << document_id << " in " << sticker->set_id_);
-}
-
-tl_object_ptr<td_api::sticker> StickersManager::get_sticker_object(FileId file_id, bool for_animated_emoji,
-                                                                   bool for_clicked_animated_emoji) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  const auto *sticker = get_sticker(file_id);
-  LOG_CHECK(sticker != nullptr) << file_id << ' ' << stickers_.calc_size();
-  const PhotoSize &thumbnail = sticker->m_thumbnail_.file_id.is_valid() ? sticker->m_thumbnail_ : sticker->s_thumbnail_;
-  auto thumbnail_format = PhotoFormat::Webp;
-  if (!sticker->set_id_.is_valid()) {
-    auto file_view = td_->file_manager_->get_file_view(sticker->file_id_);
-    if (file_view.is_encrypted()) {
-      // uploaded to secret chats stickers have JPEG thumbnail instead of server-generated WEBP
-      thumbnail_format = PhotoFormat::Jpeg;
-    } else {
-      if (thumbnail.file_id.is_valid()) {
-        auto thumbnail_file_view = td_->file_manager_->get_file_view(thumbnail.file_id);
-        if (ends_with(thumbnail_file_view.suggested_path(), ".jpg")) {
-          thumbnail_format = PhotoFormat::Jpeg;
-        }
-      }
-    }
-  }
-  auto thumbnail_object = get_thumbnail_object(td_->file_manager_.get(), thumbnail, thumbnail_format);
-  int32 width = sticker->dimensions_.width;
-  int32 height = sticker->dimensions_.height;
-  double zoom = 1.0;
-  if ((is_sticker_format_vector(sticker->format_) || sticker->type_ == StickerType::CustomEmoji) &&
-      (for_animated_emoji || for_clicked_animated_emoji)) {
-    if (sticker->type_ == StickerType::CustomEmoji && max(width, height) <= 100) {
-      zoom *= 5.12;
-    }
-    width = static_cast<int32>(width * zoom + 0.5);
-    height = static_cast<int32>(height * zoom + 0.5);
-    if (for_clicked_animated_emoji) {
-      zoom *= 3;
-      width *= 3;
-      height *= 3;
-    }
-  }
-  auto full_type = [&]() -> td_api::object_ptr<td_api::StickerFullType> {
-    switch (sticker->type_) {
-      case StickerType::Regular: {
-        auto premium_animation_object = sticker->premium_animation_file_id_.is_valid()
-                                            ? td_->file_manager_->get_file_object(sticker->premium_animation_file_id_)
-                                            : nullptr;
-        return td_api::make_object<td_api::stickerFullTypeRegular>(std::move(premium_animation_object));
-      }
-      case StickerType::Mask:
-        return td_api::make_object<td_api::stickerFullTypeMask>(sticker->mask_position_.get_mask_position_object());
-      case StickerType::CustomEmoji:
-        return td_api::make_object<td_api::stickerFullTypeCustomEmoji>(get_custom_emoji_id(sticker->file_id_).get(),
-                                                                       sticker->has_text_color_);
-      default:
-        UNREACHABLE();
-        return nullptr;
-    }
-  }();
-  int64 sticker_id = 0;
-  if (sticker->set_id_.is_valid()) {
-    sticker_id = get_sticker_id(file_id);
-  }
-  return td_api::make_object<td_api::sticker>(
-      sticker_id, sticker->set_id_.get(), width, height, sticker->alt_, get_sticker_format_object(sticker->format_),
-      std::move(full_type), std::move(thumbnail_object), td_->file_manager_->get_file_object(file_id));
-}
-
-tl_object_ptr<td_api::stickers> StickersManager::get_stickers_object(const vector<FileId> &sticker_ids) const {
-  return td_api::make_object<td_api::stickers>(
-      transform(sticker_ids, [&](FileId sticker_id) { return get_sticker_object(sticker_id); }));
-}
-
-td_api::object_ptr<td_api::emojis> StickersManager::get_sticker_emojis_object(const vector<FileId> &sticker_ids,
-                                                                              bool return_only_main_emoji) {
-  auto emojis = td_api::make_object<td_api::emojis>();
-  FlatHashSet<string> added_emojis;
-  auto add_emoji = [&](const string &emoji) {
-    if (!emoji.empty() && added_emojis.insert(emoji).second) {
-      emojis->emojis_.push_back(emoji);
-    }
-  };
-  for (auto sticker_id : sticker_ids) {
-    auto sticker = get_sticker(sticker_id);
-    CHECK(sticker != nullptr);
-    add_emoji(sticker->alt_);
-    if (!return_only_main_emoji && sticker->set_id_.is_valid()) {
-      const StickerSet *sticker_set = get_sticker_set(sticker->set_id_);
-      if (sticker_set != nullptr) {
-        auto it = sticker_set->sticker_emojis_map_.find(sticker_id);
-        if (it != sticker_set->sticker_emojis_map_.end()) {
-          for (auto emoji : it->second) {
-            add_emoji(emoji);
-          }
-        }
-      }
-    }
-  }
-  return emojis;
-}
-
-tl_object_ptr<td_api::DiceStickers> StickersManager::get_dice_stickers_object(const string &emoji, int32 value) const {
-  if (td_->auth_manager_->is_bot()) {
-    return nullptr;
-  }
-  if (!td::contains(dice_emojis_, emoji)) {
-    return nullptr;
-  }
-
-  auto it = special_sticker_sets_.find(SpecialStickerSetType::animated_dice(emoji));
-  if (it == special_sticker_sets_.end()) {
-    return nullptr;
-  }
-
-  auto sticker_set_id = it->second->id_;
-  if (!sticker_set_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto sticker_set = get_sticker_set(sticker_set_id);
-  CHECK(sticker_set != nullptr);
-  if (!sticker_set->was_loaded_) {
-    return nullptr;
-  }
-
-  auto get_sticker = [&](int32 value) {
-    return get_sticker_object(sticker_set->sticker_ids_[value], true);
-  };
-
-  if (emoji == "🎰") {
-    if (sticker_set->sticker_ids_.size() < 21 || value < 0 || value > 64) {
-      return nullptr;
-    }
-
-    int32 background_id = value == 1 || value == 22 || value == 43 || value == 64 ? 1 : 0;
-    int32 lever_id = 2;
-    int32 left_reel_id = value == 64 ? 3 : 8;
-    int32 center_reel_id = value == 64 ? 9 : 14;
-    int32 right_reel_id = value == 64 ? 15 : 20;
-    if (value != 0 && value != 64) {
-      left_reel_id = 4 + (value % 4);
-      center_reel_id = 10 + ((value + 3) / 4 % 4);
-      right_reel_id = 16 + ((value + 15) / 16 % 4);
-    }
-    return td_api::make_object<td_api::diceStickersSlotMachine>(get_sticker(background_id), get_sticker(lever_id),
-                                                                get_sticker(left_reel_id), get_sticker(center_reel_id),
-                                                                get_sticker(right_reel_id));
-  }
-
-  if (value >= 0 && value < static_cast<int32>(sticker_set->sticker_ids_.size())) {
-    return td_api::make_object<td_api::diceStickersRegular>(get_sticker(value));
-  }
-  return nullptr;
-}
-
-int32 StickersManager::get_dice_success_animation_frame_number(const string &emoji, int32 value) const {
-  if (td_->auth_manager_->is_bot()) {
-    return std::numeric_limits<int32>::max();
-  }
-  if (value == 0 || !td::contains(dice_emojis_, emoji)) {
-    return std::numeric_limits<int32>::max();
-  }
-  auto pos = static_cast<size_t>(std::find(dice_emojis_.begin(), dice_emojis_.end(), emoji) - dice_emojis_.begin());
-  if (pos >= dice_success_values_.size()) {
-    return std::numeric_limits<int32>::max();
-  }
-
-  auto &result = dice_success_values_[pos];
-  return result.first == value ? result.second : std::numeric_limits<int32>::max();
-}
-
-PhotoFormat StickersManager::get_sticker_set_thumbnail_format(const StickerSet *sticker_set) const {
-  if (sticker_set->thumbnail_document_id_ != 0 && sticker_set->sticker_type_ == StickerType::CustomEmoji) {
-    for (auto sticker_id : sticker_set->sticker_ids_) {
-      auto file_view = td_->file_manager_->get_file_view(sticker_id);
-      const auto *full_remote_location = file_view.get_full_remote_location();
-      if (full_remote_location != nullptr && !full_remote_location->is_web() &&
-          full_remote_location->get_id() == sticker_set->thumbnail_document_id_) {
-        const Sticker *s = get_sticker(sticker_id);
-        CHECK(s != nullptr);
-        return get_sticker_format_photo_format(s->format_);
-      }
-    }
-  }
-  auto type = sticker_set->thumbnail_.type;
-  if (type == 's') {
-    return PhotoFormat::Webp;
-  }
-  if (type == 'v') {
-    return PhotoFormat::Webm;
-  }
-  if (type == 'a') {
-    return PhotoFormat::Tgs;
-  }
-  return PhotoFormat::Tgs;
-}
-
-double StickersManager::get_sticker_set_minithumbnail_zoom(const StickerSet *sticker_set) const {
-  if (get_sticker_set_thumbnail_format(sticker_set) == PhotoFormat::Tgs) {
-    return 100.0 / 512.0;
-  }
-  return 1.0;
-}
-
-td_api::object_ptr<td_api::thumbnail> StickersManager::get_sticker_set_thumbnail_object(
-    const StickerSet *sticker_set) const {
-  CHECK(sticker_set != nullptr);
-  if (sticker_set->thumbnail_document_id_ != 0 && sticker_set->sticker_type_ == StickerType::CustomEmoji) {
-    for (auto sticker_id : sticker_set->sticker_ids_) {
-      auto file_view = td_->file_manager_->get_file_view(sticker_id);
-      const auto *full_remote_location = file_view.get_full_remote_location();
-      if (full_remote_location != nullptr && !full_remote_location->is_web() &&
-          full_remote_location->get_id() == sticker_set->thumbnail_document_id_) {
-        const Sticker *s = get_sticker(sticker_id);
-        auto thumbnail_format = get_sticker_format_photo_format(s->format_);
-        PhotoSize thumbnail;
-        thumbnail.type = PhotoSizeType('t');
-        thumbnail.size = static_cast<int32>(file_view.size());
-        thumbnail.dimensions = s->dimensions_;
-        thumbnail.file_id = s->file_id_;
-        return get_thumbnail_object(td_->file_manager_.get(), thumbnail, thumbnail_format);
-      }
-    }
-  }
-  auto thumbnail_format = get_sticker_set_thumbnail_format(sticker_set);
-  return get_thumbnail_object(td_->file_manager_.get(), sticker_set->thumbnail_, thumbnail_format);
-}
-
-tl_object_ptr<td_api::stickerSet> StickersManager::get_sticker_set_object(StickerSetId sticker_set_id) const {
-  const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-  CHECK(sticker_set != nullptr);
-  CHECK(sticker_set->was_loaded_);
-  sticker_set->was_update_sent_ = true;
-
-  std::vector<tl_object_ptr<td_api::sticker>> stickers;
-  std::vector<tl_object_ptr<td_api::emojis>> emojis;
-  for (auto sticker_id : sticker_set->sticker_ids_) {
-    stickers.push_back(get_sticker_object(sticker_id));
-
-    vector<string> sticker_emojis;
-    auto it = sticker_set->sticker_emojis_map_.find(sticker_id);
-    if (it != sticker_set->sticker_emojis_map_.end()) {
-      sticker_emojis = it->second;
-    }
-    emojis.push_back(make_tl_object<td_api::emojis>(std::move(sticker_emojis)));
-  }
-  return td_api::make_object<td_api::stickerSet>(
-      sticker_set->id_.get(), sticker_set->title_, sticker_set->short_name_,
-      get_sticker_set_thumbnail_object(sticker_set),
-      get_outline_object(sticker_set->minithumbnail_, get_sticker_set_minithumbnail_zoom(sticker_set),
-                         PSLICE() << sticker_set->id_),
-      sticker_set->is_created_, sticker_set->is_installed_ && !sticker_set->is_archived_, sticker_set->is_archived_,
-      sticker_set->is_official_, get_sticker_type_object(sticker_set->sticker_type_), sticker_set->has_text_color_,
-      sticker_set->channel_emoji_status_, sticker_set->is_viewed_, std::move(stickers), std::move(emojis));
-}
-
-tl_object_ptr<td_api::stickerSets> StickersManager::get_sticker_sets_object(int32 total_count,
-                                                                            const vector<StickerSetId> &sticker_set_ids,
-                                                                            size_t covers_limit) const {
-  vector<tl_object_ptr<td_api::stickerSetInfo>> result;
-  result.reserve(sticker_set_ids.size());
-  for (auto sticker_set_id : sticker_set_ids) {
-    auto sticker_set_info = get_sticker_set_info_object(sticker_set_id, covers_limit, false);
-    if (sticker_set_info->size_ != 0) {
-      result.push_back(std::move(sticker_set_info));
-    }
-  }
-
-  auto result_size = narrow_cast<int32>(result.size());
-  if (total_count < result_size) {
-    if (total_count != -1) {
-      LOG(ERROR) << "Have total_count = " << total_count << ", but there are " << result_size << " results";
-    }
-    total_count = result_size;
-  }
-  return make_tl_object<td_api::stickerSets>(total_count, std::move(result));
-}
-
-tl_object_ptr<td_api::stickerSetInfo> StickersManager::get_sticker_set_info_object(StickerSetId sticker_set_id,
-                                                                                   size_t covers_limit,
-                                                                                   bool prefer_premium) const {
-  const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-  CHECK(sticker_set != nullptr);
-  CHECK(sticker_set->is_inited_);
-  sticker_set->was_update_sent_ = true;
-
-  vector<td_api::object_ptr<td_api::sticker>> stickers;
-  if (prefer_premium) {
-    CHECK(!td_->auth_manager_->is_bot());
-    vector<FileId> regular_sticker_ids;
-    vector<FileId> premium_sticker_ids;
-    std::tie(regular_sticker_ids, premium_sticker_ids) = split_stickers_by_premium(sticker_set);
-    auto is_premium = td_->option_manager_->get_option_boolean("is_premium");
-    size_t max_premium_stickers = is_premium ? covers_limit : 1;
-    if (premium_sticker_ids.size() > max_premium_stickers) {
-      premium_sticker_ids.resize(max_premium_stickers);
-    }
-    CHECK(premium_sticker_ids.size() <= covers_limit);
-    if (regular_sticker_ids.size() > covers_limit - premium_sticker_ids.size()) {
-      regular_sticker_ids.resize(covers_limit - premium_sticker_ids.size());
-    }
-    if (!is_premium) {
-      std::swap(premium_sticker_ids, regular_sticker_ids);
-    }
-
-    append(premium_sticker_ids, regular_sticker_ids);
-    for (auto sticker_id : premium_sticker_ids) {
-      stickers.push_back(get_sticker_object(sticker_id));
-      if (stickers.size() >= covers_limit) {
-        break;
-      }
-    }
-  } else {
-    for (auto sticker_id : sticker_set->sticker_ids_) {
-      stickers.push_back(get_sticker_object(sticker_id));
-      if (stickers.size() >= covers_limit) {
-        break;
-      }
-    }
-  }
-
-  auto actual_count = narrow_cast<int32>(sticker_set->sticker_ids_.size());
-  return make_tl_object<td_api::stickerSetInfo>(
-      sticker_set->id_.get(), sticker_set->title_, sticker_set->short_name_,
-      get_sticker_set_thumbnail_object(sticker_set),
-      get_outline_object(sticker_set->minithumbnail_, get_sticker_set_minithumbnail_zoom(sticker_set),
-                         PSLICE() << sticker_set->id_),
-      sticker_set->is_created_, sticker_set->is_installed_ && !sticker_set->is_archived_, sticker_set->is_archived_,
-      sticker_set->is_official_, get_sticker_type_object(sticker_set->sticker_type_), sticker_set->has_text_color_,
-      sticker_set->channel_emoji_status_, sticker_set->is_viewed_,
-      sticker_set->was_loaded_ ? actual_count : max(actual_count, sticker_set->sticker_count_), std::move(stickers));
-}
-
-td_api::object_ptr<td_api::sticker> StickersManager::get_premium_gift_sticker_object(int32 month_count,
-                                                                                     int64 star_count) {
-  if (month_count == 0) {
-    month_count = StarManager::get_months_by_star_count(star_count);
-  }
-  auto it = premium_gift_messages_.find(month_count);
-  if (it == premium_gift_messages_.end()) {
-    return get_sticker_object(get_premium_gift_option_sticker_id(month_count));
-  } else {
-    return get_sticker_object(it->second->sticker_id_);
-  }
-}
-
-const StickersManager::StickerSet *StickersManager::get_premium_gift_sticker_set() {
-  if (td_->auth_manager_->is_bot()) {
-    return nullptr;
-  }
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::premium_gifts());
-  if (!special_sticker_set.id_.is_valid()) {
-    load_special_sticker_set(special_sticker_set);
-    return nullptr;
-  }
-
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  CHECK(sticker_set != nullptr);
-  if (!sticker_set->was_loaded_) {
-    load_special_sticker_set(special_sticker_set);
-    return nullptr;
-  }
-
-  return sticker_set;
-}
-
-FileId StickersManager::get_premium_gift_option_sticker_id(const StickerSet *sticker_set, int32 month_count) {
-  if (sticker_set == nullptr || sticker_set->sticker_ids_.empty() || month_count <= 0) {
-    return {};
-  }
-
-  int32 number = [month_count] {
-    switch (month_count) {
-      case 1:
-        return 1;
-      case 3:
-        return 2;
-      case 6:
-        return 3;
-      case 12:
-        return 4;
-      case 24:
-        return 5;
-      default:
-        return -1;
-    }
-  }();
-
-  for (auto sticker_id : sticker_set->sticker_ids_) {
-    auto it = sticker_set->sticker_emojis_map_.find(sticker_id);
-    if (it != sticker_set->sticker_emojis_map_.end()) {
-      for (auto &emoji : it->second) {
-        if (get_emoji_number(emoji) == number) {
-          return sticker_id;
-        }
-      }
-    }
-  }
-
-  // there is no match; return the first sticker
-  return sticker_set->sticker_ids_[0];
-}
-
-FileId StickersManager::get_premium_gift_option_sticker_id(int32 month_count) {
-  return get_premium_gift_option_sticker_id(get_premium_gift_sticker_set(), month_count);
-}
-
-void StickersManager::load_premium_gift_sticker_set(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot() || get_premium_gift_sticker_set() != nullptr) {
-    return promise.set_value(Unit());
-  }
-  pending_get_premium_gift_option_sticker_queries_.push_back(std::move(promise));
-}
-
-void StickersManager::load_premium_gift_sticker(int32 month_count, int64 star_count,
-                                                Promise<td_api::object_ptr<td_api::sticker>> &&promise) {
-  if (get_premium_gift_sticker_set() != nullptr) {
-    return return_premium_gift_sticker(month_count, star_count, std::move(promise));
-  }
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), month_count, star_count,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      return promise.set_error(result.move_as_error());
-    }
-    send_closure(actor_id, &StickersManager::return_premium_gift_sticker, month_count, star_count, std::move(promise));
-  });
-  pending_get_premium_gift_option_sticker_queries_.push_back(std::move(query_promise));
-}
-
-void StickersManager::return_premium_gift_sticker(int32 month_count, int64 star_count,
-                                                  Promise<td_api::object_ptr<td_api::sticker>> &&promise) {
-  promise.set_value(get_premium_gift_sticker_object(month_count, star_count));
-}
-
-const StickersManager::StickerSet *StickersManager::get_animated_emoji_sticker_set() {
-  if (td_->auth_manager_->is_bot() || disable_animated_emojis_) {
-    return nullptr;
-  }
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_emoji());
-  if (!special_sticker_set.id_.is_valid()) {
-    load_special_sticker_set(special_sticker_set);
-    return nullptr;
-  }
-
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  CHECK(sticker_set != nullptr);
-  if (!sticker_set->was_loaded_) {
-    load_special_sticker_set(special_sticker_set);
-    return nullptr;
-  }
-
-  return sticker_set;
-}
-
-std::pair<FileId, int> StickersManager::get_animated_emoji_sticker(const StickerSet *sticker_set, const string &emoji) {
-  if (sticker_set == nullptr) {
-    return {};
-  }
-
-  auto emoji_without_modifiers = remove_emoji_modifiers(emoji);
-  auto it = sticker_set->emoji_stickers_map_.find(emoji_without_modifiers);
-  if (it == sticker_set->emoji_stickers_map_.end()) {
-    return {};
-  }
-
-  auto emoji_without_selectors = remove_emoji_selectors(emoji);
-  // trying to find full emoji match
-  for (const auto &sticker_id : it->second) {
-    auto emoji_it = sticker_set->sticker_emojis_map_.find(sticker_id);
-    CHECK(emoji_it != sticker_set->sticker_emojis_map_.end());
-    for (auto &sticker_emoji : emoji_it->second) {
-      if (remove_emoji_selectors(sticker_emoji) == emoji_without_selectors) {
-        return {sticker_id, 0};
-      }
-    }
-  }
-
-  // trying to find match without Fitzpatrick modifiers
-  int modifier_id = get_fitzpatrick_modifier(emoji_without_selectors);
-  if (modifier_id > 0) {
-    for (const auto &sticker_id : it->second) {
-      auto emoji_it = sticker_set->sticker_emojis_map_.find(sticker_id);
-      CHECK(emoji_it != sticker_set->sticker_emojis_map_.end());
-      for (auto &sticker_emoji : emoji_it->second) {
-        if (remove_emoji_selectors(sticker_emoji) == Slice(emoji_without_selectors).remove_suffix(4)) {
-          return {sticker_id, modifier_id};
-        }
-      }
-    }
-  }
-
-  // there is no match
-  return {};
-}
-
-std::pair<FileId, int> StickersManager::get_animated_emoji_sticker(const string &emoji) {
-  return get_animated_emoji_sticker(get_animated_emoji_sticker_set(), emoji);
-}
-
-FileId StickersManager::get_animated_emoji_sound_file_id(const string &emoji) const {
-  auto it = emoji_sounds_.find(remove_fitzpatrick_modifier(emoji).str());
-  if (it == emoji_sounds_.end()) {
-    return {};
-  }
-  return it->second;
-}
-
-FileId StickersManager::get_custom_animated_emoji_sticker_id(CustomEmojiId custom_emoji_id) const {
-  if (disable_animated_emojis_) {
-    return {};
-  }
-
-  return custom_emoji_to_sticker_id_.get(custom_emoji_id);
-}
-
-td_api::object_ptr<td_api::animatedEmoji> StickersManager::get_animated_emoji_object(const string &emoji,
-                                                                                     CustomEmojiId custom_emoji_id) {
-  if (td_->auth_manager_->is_bot() || disable_animated_emojis_) {
-    return nullptr;
-  }
-
-  if (custom_emoji_id.is_valid()) {
-    auto it = custom_emoji_messages_.find(custom_emoji_id);
-    auto sticker_id = it == custom_emoji_messages_.end() ? get_custom_animated_emoji_sticker_id(custom_emoji_id)
-                                                         : it->second->sticker_id_;
-    auto sticker = get_sticker_object(sticker_id, true);
-    auto default_custom_emoji_dimension = static_cast<int32>(512 * animated_emoji_zoom_ + 0.5);
-    auto sticker_width = sticker == nullptr ? default_custom_emoji_dimension : sticker->width_;
-    auto sticker_height = sticker == nullptr ? default_custom_emoji_dimension : sticker->height_;
-    return td_api::make_object<td_api::animatedEmoji>(std::move(sticker), sticker_width, sticker_height, 0, nullptr);
-  }
-
-  auto it = emoji_messages_.find(emoji);
-  if (it == emoji_messages_.end()) {
-    return get_animated_emoji_object(get_animated_emoji_sticker(emoji), get_animated_emoji_sound_file_id(emoji));
-  } else {
-    return get_animated_emoji_object(it->second->animated_emoji_sticker_, it->second->sound_file_id_);
-  }
-}
-
-td_api::object_ptr<td_api::animatedEmoji> StickersManager::get_animated_emoji_object(
-    std::pair<FileId, int> animated_sticker, FileId sound_file_id) const {
-  if (!animated_sticker.first.is_valid()) {
-    return nullptr;
-  }
-  auto sticker = get_sticker_object(animated_sticker.first, true);
-  CHECK(sticker != nullptr);
-  auto sticker_width = sticker->width_;
-  auto sticker_height = sticker->height_;
-  return td_api::make_object<td_api::animatedEmoji>(
-      std::move(sticker), sticker_width, sticker_height, animated_sticker.second,
-      sound_file_id.is_valid() ? td_->file_manager_->get_file_object(sound_file_id) : nullptr);
-}
-
-tl_object_ptr<telegram_api::InputStickerSet> StickersManager::get_input_sticker_set(StickerSetId sticker_set_id) const {
-  auto sticker_set = get_sticker_set(sticker_set_id);
-  if (sticker_set == nullptr) {
-    return nullptr;
-  }
-
-  return get_input_sticker_set(sticker_set);
-}
-
-class StickersManager::CustomEmojiLogEvent {
- public:
-  FileId sticker_id;
-
-  CustomEmojiLogEvent() = default;
-
-  explicit CustomEmojiLogEvent(FileId sticker_id) : sticker_id(sticker_id) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    BEGIN_STORE_FLAGS();
-    END_STORE_FLAGS();
-    StickersManager *stickers_manager = storer.context()->td().get_actor_unsafe()->stickers_manager_.get();
-    stickers_manager->store_sticker(sticker_id, false, storer, "CustomEmoji");
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    BEGIN_PARSE_FLAGS();
-    END_PARSE_FLAGS();
-    StickersManager *stickers_manager = parser.context()->td().get_actor_unsafe()->stickers_manager_.get();
-    sticker_id = stickers_manager->parse_sticker(false, parser);
-  }
-};
-
-string StickersManager::get_custom_emoji_database_key(CustomEmojiId custom_emoji_id) {
-  return PSTRING() << "emoji" << custom_emoji_id.get();
-}
-
-FileId StickersManager::on_get_sticker(unique_ptr<Sticker> new_sticker, bool replace) {
-  auto file_id = new_sticker->file_id_;
-  CHECK(file_id.is_valid());
-  CustomEmojiId updated_custom_emoji_id;
-  auto *s = get_sticker(file_id);
-  if (s == nullptr) {
-    s = new_sticker.get();
-    stickers_.set(file_id, std::move(new_sticker));
-  } else if (replace) {
-    CHECK(s->file_id_ == file_id);
-
-    if (s->type_ == StickerType::CustomEmoji) {
-      auto custom_emoji_id = get_custom_emoji_id(file_id);
-      if (custom_emoji_id.is_valid() && custom_emoji_to_sticker_id_.get(custom_emoji_id) == file_id) {
-        custom_emoji_to_sticker_id_.erase(custom_emoji_id);
-        updated_custom_emoji_id = custom_emoji_id;
-      }
-    }
-
-    bool is_changed = false;
-    if (s->dimensions_ != new_sticker->dimensions_ && new_sticker->dimensions_.width != 0) {
-      LOG(DEBUG) << "Sticker " << file_id << " dimensions have changed";
-      s->dimensions_ = new_sticker->dimensions_;
-      is_changed = true;
-    }
-    if (s->set_id_ != new_sticker->set_id_ && new_sticker->set_id_.is_valid()) {
-      LOG_IF(ERROR, s->set_id_.is_valid()) << "Sticker " << file_id << " set_id has changed";
-      s->set_id_ = new_sticker->set_id_;
-      is_changed = true;
-    }
-    if (s->alt_ != new_sticker->alt_ && !new_sticker->alt_.empty()) {
-      LOG(DEBUG) << "Sticker " << file_id << " emoji has changed";
-      s->alt_ = std::move(new_sticker->alt_);
-      is_changed = true;
-    }
-    if (s->minithumbnail_ != new_sticker->minithumbnail_) {
-      LOG(DEBUG) << "Sticker " << file_id << " minithumbnail has changed";
-      s->minithumbnail_ = std::move(new_sticker->minithumbnail_);
-      is_changed = true;
-    }
-    if (s->s_thumbnail_ != new_sticker->s_thumbnail_ && new_sticker->s_thumbnail_.file_id.is_valid()) {
-      LOG_IF(INFO, s->s_thumbnail_.file_id.is_valid()) << "Sticker " << file_id << " s thumbnail has changed from "
-                                                       << s->s_thumbnail_ << " to " << new_sticker->s_thumbnail_;
-      s->s_thumbnail_ = std::move(new_sticker->s_thumbnail_);
-      is_changed = true;
-    }
-    if (s->m_thumbnail_ != new_sticker->m_thumbnail_ && new_sticker->m_thumbnail_.file_id.is_valid()) {
-      LOG_IF(INFO, s->m_thumbnail_.file_id.is_valid()) << "Sticker " << file_id << " m thumbnail has changed from "
-                                                       << s->m_thumbnail_ << " to " << new_sticker->m_thumbnail_;
-      s->m_thumbnail_ = std::move(new_sticker->m_thumbnail_);
-      is_changed = true;
-    }
-    if (s->is_premium_ != new_sticker->is_premium_) {
-      s->is_premium_ = new_sticker->is_premium_;
-      is_changed = true;
-    }
-    if (s->has_text_color_ != new_sticker->has_text_color_) {
-      s->has_text_color_ = new_sticker->has_text_color_;
-      is_changed = true;
-    }
-    if (s->premium_animation_file_id_ != new_sticker->premium_animation_file_id_ &&
-        new_sticker->premium_animation_file_id_.is_valid()) {
-      s->premium_animation_file_id_ = new_sticker->premium_animation_file_id_;
-      is_changed = true;
-    }
-    if (s->format_ != new_sticker->format_ && new_sticker->format_ != StickerFormat::Unknown) {
-      s->format_ = new_sticker->format_;
-      is_changed = true;
-    }
-    if (s->type_ != new_sticker->type_ && new_sticker->type_ != StickerType::Regular) {
-      s->type_ = new_sticker->type_;
-      is_changed = true;
-    }
-    if (s->mask_position_ != new_sticker->mask_position_) {
-      s->mask_position_ = new_sticker->mask_position_;
-      is_changed = true;
-    }
-    if (s->emoji_receive_date_ < new_sticker->emoji_receive_date_) {
-      LOG(DEBUG) << "Update custom emoji file " << file_id << " receive date";
-      s->emoji_receive_date_ = new_sticker->emoji_receive_date_;
-      s->is_from_database_ = false;
-    }
-
-    if (is_changed) {
-      s->is_from_database_ = false;
-    }
-  }
-
-  if (s->type_ == StickerType::CustomEmoji) {
-    s->is_being_reloaded_ = false;
-    auto custom_emoji_id = get_custom_emoji_id(file_id);
-    if (custom_emoji_id.is_valid()) {
-      custom_emoji_to_sticker_id_.set(custom_emoji_id, file_id);
-      CHECK(updated_custom_emoji_id == custom_emoji_id || !updated_custom_emoji_id.is_valid());
-      updated_custom_emoji_id = custom_emoji_id;
-      if (!s->is_from_database_ && G()->use_sqlite_pmc() && !G()->close_flag()) {
-        LOG(INFO) << "Save " << custom_emoji_id << " to database";
-        s->is_from_database_ = true;
-
-        CustomEmojiLogEvent log_event(file_id);
-        G()->td_db()->get_sqlite_pmc()->set(get_custom_emoji_database_key(custom_emoji_id),
-                                            log_event_store(log_event).as_slice().str(), Auto());
-      }
-    }
-  }
-  if (updated_custom_emoji_id.is_valid()) {
-    try_update_custom_emoji_messages(updated_custom_emoji_id);
-  }
-  return file_id;
-}
-
-bool StickersManager::has_webp_thumbnail(const vector<tl_object_ptr<telegram_api::PhotoSize>> &thumbnails) {
-  // server tries to always replace user-provided thumbnail with server-side WEBP thumbnail
-  // but there can be some old sticker documents or some big stickers
-  for (auto &size : thumbnails) {
-    switch (size->get_id()) {
-      case telegram_api::photoStrippedSize::ID:
-      case telegram_api::photoSizeProgressive::ID:
-        // WEBP thumbnail can't have stripped size or be progressive
-        return false;
-      default:
-        break;
-    }
-  }
-  return true;
-}
-
-std::pair<int64, FileId> StickersManager::on_get_sticker_document(tl_object_ptr<telegram_api::Document> &&document_ptr,
-                                                                  StickerFormat expected_format, const char *source) {
-  if (document_ptr == nullptr) {
-    return {};
-  }
-  int32 document_constructor_id = document_ptr->get_id();
-  if (document_constructor_id == telegram_api::documentEmpty::ID) {
-    LOG(ERROR) << "Empty sticker document received from " << source;
-    return {};
-  }
-  CHECK(document_constructor_id == telegram_api::document::ID);
-  auto document = move_tl_object_as<telegram_api::document>(document_ptr);
-
-  if (!DcId::is_valid(document->dc_id_)) {
-    LOG(ERROR) << "Wrong dc_id = " << document->dc_id_ << " from " << source << " in document " << to_string(document);
-    return {};
-  }
-  auto dc_id = DcId::internal(document->dc_id_);
-
-  Dimensions dimensions;
-  telegram_api::object_ptr<telegram_api::documentAttributeSticker> sticker;
-  telegram_api::object_ptr<telegram_api::documentAttributeCustomEmoji> custom_emoji;
-  for (auto &attribute : document->attributes_) {
-    switch (attribute->get_id()) {
-      case telegram_api::documentAttributeVideo::ID: {
-        auto video = telegram_api::move_object_as<telegram_api::documentAttributeVideo>(attribute);
-        dimensions = get_dimensions(video->w_, video->h_, "sticker documentAttributeVideo");
-        break;
-      }
-      case telegram_api::documentAttributeImageSize::ID: {
-        auto image_size = telegram_api::move_object_as<telegram_api::documentAttributeImageSize>(attribute);
-        dimensions = get_dimensions(image_size->w_, image_size->h_, "sticker documentAttributeImageSize");
-        break;
-      }
-      case telegram_api::documentAttributeSticker::ID:
-        sticker = telegram_api::move_object_as<telegram_api::documentAttributeSticker>(attribute);
-        break;
-      case telegram_api::documentAttributeCustomEmoji::ID:
-        custom_emoji = telegram_api::move_object_as<telegram_api::documentAttributeCustomEmoji>(attribute);
-        break;
-      default:
-        continue;
-    }
-  }
-  if (sticker == nullptr && custom_emoji == nullptr) {
-    if (document->mime_type_ != "application/x-bad-tgsticker") {
-      LOG(ERROR) << "Have no attributeSticker from " << source << " in " << to_string(document);
-    }
-    return {};
-  }
-
-  auto format = get_sticker_format_by_mime_type(document->mime_type_);
-  if (format == StickerFormat::Unknown || (expected_format != StickerFormat::Unknown && format != expected_format)) {
-    LOG(ERROR) << "Expected sticker of the type " << expected_format << ", but received of the type " << format
-               << " from " << source;
-    return {};
-  }
-  int64 document_id = document->id_;
-  FileId sticker_id =
-      td_->file_manager_->register_remote(FullRemoteFileLocation(FileType::Sticker, document_id, document->access_hash_,
-                                                                 dc_id, document->file_reference_.as_slice().str()),
-                                          FileLocationSource::FromServer, DialogId(), document->size_, 0,
-                                          PSTRING() << document_id << get_sticker_format_extension(format));
-
-  PhotoSize thumbnail;
-  string minithumbnail;
-  auto thumbnail_format = has_webp_thumbnail(document->thumbs_) ? PhotoFormat::Webp : PhotoFormat::Jpeg;
-  FileId premium_animation_file_id;
-  for (auto &thumbnail_ptr : document->thumbs_) {
-    auto photo_size = get_photo_size(td_->file_manager_.get(), PhotoSizeSource::thumbnail(FileType::Thumbnail, 0),
-                                     document_id, document->access_hash_, document->file_reference_.as_slice().str(),
-                                     dc_id, DialogId(), std::move(thumbnail_ptr), thumbnail_format);
-    if (photo_size.get_offset() == 0) {
-      if (!thumbnail.file_id.is_valid()) {
-        thumbnail = std::move(photo_size.get<0>());
-      }
-      break;
-    } else {
-      if (thumbnail_format == PhotoFormat::Webp) {
-        minithumbnail = std::move(photo_size.get<1>());
-      }
-    }
-  }
-  for (auto &thumbnail_ptr : document->video_thumbs_) {
-    if (thumbnail_ptr->get_id() != telegram_api::videoSize::ID) {
-      continue;
-    }
-    auto video_size = move_tl_object_as<telegram_api::videoSize>(thumbnail_ptr);
-    if (video_size->type_ == "f") {
-      if (!premium_animation_file_id.is_valid()) {
-        premium_animation_file_id = register_photo_size(
-            td_->file_manager_.get(), PhotoSizeSource::thumbnail(FileType::Thumbnail, 'f'), document_id,
-            document->access_hash_, document->file_reference_.as_slice().str(), DialogId(), video_size->size_, dc_id,
-            get_sticker_format_photo_format(format), "on_get_sticker_document");
-      }
-    }
-  }
-
-  create_sticker(sticker_id, premium_animation_file_id, std::move(minithumbnail), std::move(thumbnail), dimensions,
-                 std::move(sticker), std::move(custom_emoji), format, nullptr);
-  return {document_id, sticker_id};
-}
-
-StickersManager::Sticker *StickersManager::get_sticker(FileId file_id) {
-  return stickers_.get_pointer(file_id);
-}
-
-const StickersManager::Sticker *StickersManager::get_sticker(FileId file_id) const {
-  return stickers_.get_pointer(file_id);
-}
-
-StickersManager::StickerSet *StickersManager::get_sticker_set(StickerSetId sticker_set_id) {
-  return sticker_sets_.get_pointer(sticker_set_id);
-}
-
-const StickersManager::StickerSet *StickersManager::get_sticker_set(StickerSetId sticker_set_id) const {
-  return sticker_sets_.get_pointer(sticker_set_id);
-}
-
-StickerSetId StickersManager::get_sticker_set_id(const tl_object_ptr<telegram_api::InputStickerSet> &set_ptr) {
-  CHECK(set_ptr != nullptr);
-  switch (set_ptr->get_id()) {
-    case telegram_api::inputStickerSetEmpty::ID:
-      return StickerSetId();
-    case telegram_api::inputStickerSetID::ID:
-      return StickerSetId(static_cast<const telegram_api::inputStickerSetID *>(set_ptr.get())->id_);
-    case telegram_api::inputStickerSetShortName::ID:
-      LOG(ERROR) << "Receive sticker set by its short name";
-      return search_sticker_set(static_cast<const telegram_api::inputStickerSetShortName *>(set_ptr.get())->short_name_,
-                                false, Auto());
-    case telegram_api::inputStickerSetAnimatedEmoji::ID:
-    case telegram_api::inputStickerSetAnimatedEmojiAnimations::ID:
-    case telegram_api::inputStickerSetPremiumGifts::ID:
-    case telegram_api::inputStickerSetEmojiGenericAnimations::ID:
-    case telegram_api::inputStickerSetEmojiDefaultStatuses::ID:
-    case telegram_api::inputStickerSetEmojiChannelDefaultStatuses::ID:
-    case telegram_api::inputStickerSetEmojiDefaultTopicIcons::ID:
-      LOG(ERROR) << "Receive special sticker set " << to_string(set_ptr);
-      return add_special_sticker_set(SpecialStickerSetType(set_ptr)).id_;
-    case telegram_api::inputStickerSetDice::ID:
-      LOG(ERROR) << "Receive special sticker set " << to_string(set_ptr);
-      return StickerSetId();
-    default:
-      UNREACHABLE();
-      return StickerSetId();
-  }
-}
-
-StickerSetId StickersManager::add_sticker_set(tl_object_ptr<telegram_api::InputStickerSet> &&set_ptr) {
-  CHECK(set_ptr != nullptr);
-  switch (set_ptr->get_id()) {
-    case telegram_api::inputStickerSetEmpty::ID:
-      return StickerSetId();
-    case telegram_api::inputStickerSetID::ID: {
-      auto set = move_tl_object_as<telegram_api::inputStickerSetID>(set_ptr);
-      StickerSetId set_id{set->id_};
-      add_sticker_set(set_id, set->access_hash_);
-      return set_id;
-    }
-    case telegram_api::inputStickerSetShortName::ID: {
-      auto set = move_tl_object_as<telegram_api::inputStickerSetShortName>(set_ptr);
-      LOG(ERROR) << "Receive sticker set by its short name";
-      return search_sticker_set(set->short_name_, false, Auto());
-    }
-    case telegram_api::inputStickerSetAnimatedEmoji::ID:
-    case telegram_api::inputStickerSetAnimatedEmojiAnimations::ID:
-    case telegram_api::inputStickerSetPremiumGifts::ID:
-    case telegram_api::inputStickerSetEmojiGenericAnimations::ID:
-    case telegram_api::inputStickerSetEmojiDefaultStatuses::ID:
-    case telegram_api::inputStickerSetEmojiChannelDefaultStatuses::ID:
-    case telegram_api::inputStickerSetEmojiDefaultTopicIcons::ID:
-      LOG(ERROR) << "Receive special sticker set " << to_string(set_ptr);
-      return add_special_sticker_set(SpecialStickerSetType(set_ptr)).id_;
-    case telegram_api::inputStickerSetDice::ID:
-      LOG(ERROR) << "Receive special sticker set " << to_string(set_ptr);
-      return StickerSetId();
-    default:
-      UNREACHABLE();
-      return StickerSetId();
-  }
-}
-
-StickersManager::StickerSet *StickersManager::add_sticker_set(StickerSetId sticker_set_id, int64 access_hash) {
-  if (!sticker_set_id.is_valid()) {
-    return nullptr;
-  }
-  auto *s = get_sticker_set(sticker_set_id);
-  if (s == nullptr) {
-    auto sticker_set = make_unique<StickerSet>();
-    s = sticker_set.get();
-
-    s->id_ = sticker_set_id;
-    s->access_hash_ = access_hash;
-    s->is_changed_ = false;
-    s->need_save_to_database_ = false;
-
-    sticker_sets_.set(sticker_set_id, std::move(sticker_set));
-  } else {
-    CHECK(s->id_ == sticker_set_id);
-    if (s->access_hash_ != access_hash) {
-      LOG(INFO) << "Access hash of " << sticker_set_id << " changed";
-      s->access_hash_ = access_hash;
-      s->need_save_to_database_ = true;
-    }
-  }
-  return s;
-}
-
-FileId StickersManager::get_sticker_thumbnail_file_id(FileId file_id) const {
-  auto *sticker = get_sticker(file_id);
-  CHECK(sticker != nullptr);
-  return sticker->s_thumbnail_.file_id;
-}
-
-void StickersManager::delete_sticker_thumbnail(FileId file_id) {
-  auto *sticker = get_sticker(file_id);
-  CHECK(sticker != nullptr);
-  sticker->s_thumbnail_ = PhotoSize();
-}
-
-vector<FileId> StickersManager::get_sticker_file_ids(FileId file_id) const {
-  vector<FileId> result;
-  auto sticker = get_sticker(file_id);
-  CHECK(sticker != nullptr);
-  result.push_back(file_id);
-  if (sticker->s_thumbnail_.file_id.is_valid()) {
-    result.push_back(sticker->s_thumbnail_.file_id);
-  }
-  if (sticker->m_thumbnail_.file_id.is_valid()) {
-    result.push_back(sticker->m_thumbnail_.file_id);
-  }
-  if (sticker->premium_animation_file_id_.is_valid()) {
-    result.push_back(sticker->premium_animation_file_id_);
-  }
-  return result;
-}
-
-FileId StickersManager::dup_sticker(FileId new_id, FileId old_id) {
-  const Sticker *old_sticker = get_sticker(old_id);
-  CHECK(old_sticker != nullptr);
-  if (get_sticker(new_id) != nullptr) {
-    return new_id;
-  }
-  auto new_sticker = make_unique<Sticker>(*old_sticker);
-  new_sticker->file_id_ = new_id;
-  stickers_.set(new_id, std::move(new_sticker));
-  return new_id;
-}
-
-void StickersManager::merge_stickers(FileId new_id, FileId old_id) {
-  CHECK(old_id.is_valid() && new_id.is_valid());
-  CHECK(new_id != old_id);
-
-  LOG(INFO) << "Merge stickers " << new_id << " and " << old_id;
-  const Sticker *old_ = get_sticker(old_id);
-  CHECK(old_ != nullptr);
-
-  const auto *new_ = get_sticker(new_id);
-  if (new_ == nullptr) {
-    dup_sticker(new_id, old_id);
-  } else {
-    if (old_->set_id_ == new_->set_id_ && old_->dimensions_ != new_->dimensions_ && old_->dimensions_.width != 0 &&
-        old_->dimensions_.height != 0 && !is_sticker_format_vector(old_->format_) &&
-        !is_sticker_format_vector(new_->format_)) {
-      LOG(ERROR) << "Sticker has changed: alt = (" << old_->alt_ << ", " << new_->alt_ << "), set_id = ("
-                 << old_->set_id_ << ", " << new_->set_id_ << "), dimensions = (" << old_->dimensions_ << ", "
-                 << new_->dimensions_ << ")";
-    }
-  }
-  LOG_STATUS(td_->file_manager_->merge(new_id, old_id));
-}
-
-tl_object_ptr<telegram_api::InputStickerSet> StickersManager::get_input_sticker_set(const StickerSet *set) {
-  CHECK(set != nullptr);
-  return make_tl_object<telegram_api::inputStickerSetID>(set->id_.get(), set->access_hash_);
-}
-
-void StickersManager::reload_installed_sticker_sets(StickerType sticker_type, bool force) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto type = static_cast<int32>(sticker_type);
-  auto &next_load_time = next_installed_sticker_sets_load_time_[type];
-  if (!td_->auth_manager_->is_bot() && next_load_time >= 0 && (next_load_time < Time::now() || force)) {
-    LOG_IF(INFO, force) << "Reload sticker sets";
-    next_load_time = -1;
-    td_->create_handler<GetAllStickersQuery>()->send(sticker_type, installed_sticker_sets_hash_[type]);
-  }
-}
-
-void StickersManager::reload_featured_sticker_sets(StickerType sticker_type, bool force) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto type = static_cast<int32>(sticker_type);
-  auto &next_load_time = next_featured_sticker_sets_load_time_[type];
-  if (!td_->auth_manager_->is_bot() && next_load_time >= 0 && (next_load_time < Time::now() || force)) {
-    LOG_IF(INFO, force) << "Reload trending sticker sets";
-    next_load_time = -1;
-    td_->create_handler<GetFeaturedStickerSetsQuery>()->send(sticker_type, featured_sticker_sets_hash_[type]);
-  }
-}
-
-void StickersManager::reload_old_featured_sticker_sets(StickerType sticker_type, uint32 generation) {
-  if (sticker_type != StickerType::Regular) {
-    return;
-  }
-  auto type = static_cast<int32>(sticker_type);
-  if (generation != 0 && generation != old_featured_sticker_set_generation_[type]) {
-    return;
-  }
-  td_->create_handler<GetOldFeaturedStickerSetsQuery>()->send(
-      sticker_type, static_cast<int32>(old_featured_sticker_set_ids_[type].size()), OLD_FEATURED_STICKER_SET_SLICE_SIZE,
-      old_featured_sticker_set_generation_[type]);
-}
-
-StickerSetId StickersManager::on_get_input_sticker_set(FileId sticker_file_id,
-                                                       tl_object_ptr<telegram_api::InputStickerSet> &&set_ptr,
-                                                       MultiPromiseActor *load_data_multipromise_ptr) {
-  if (set_ptr == nullptr) {
-    return StickerSetId();
-  }
-  switch (set_ptr->get_id()) {
-    case telegram_api::inputStickerSetEmpty::ID:
-      return StickerSetId();
-    case telegram_api::inputStickerSetID::ID: {
-      auto set = move_tl_object_as<telegram_api::inputStickerSetID>(set_ptr);
-      StickerSetId set_id{set->id_};
-      add_sticker_set(set_id, set->access_hash_);
-      return set_id;
-    }
-    case telegram_api::inputStickerSetShortName::ID: {
-      auto set = move_tl_object_as<telegram_api::inputStickerSetShortName>(set_ptr);
-      if (load_data_multipromise_ptr == nullptr) {
-        LOG(ERROR) << "Receive sticker set " << set->short_name_ << " by its short name";
-        return search_sticker_set(set->short_name_, false, Auto());
-      }
-      auto set_id = search_sticker_set(set->short_name_, false, load_data_multipromise_ptr->get_promise());
-      if (!set_id.is_valid()) {
-        load_data_multipromise_ptr->add_promise(PromiseCreator::lambda(
-            [actor_id = actor_id(this), sticker_file_id, short_name = set->short_name_](Result<Unit> result) {
-              if (result.is_ok()) {
-                // just in case
-                send_closure(actor_id, &StickersManager::on_resolve_sticker_set_short_name, sticker_file_id,
-                             short_name);
-              }
-            }));
-      }
-      // always return empty StickerSetId, because we can't trust the set_id provided by the peer in the secret chat
-      // the real sticker set identifier will be set in on_get_sticker if and only if the sticker is really from the set
-      return StickerSetId();
-    }
-    case telegram_api::inputStickerSetAnimatedEmoji::ID:
-    case telegram_api::inputStickerSetAnimatedEmojiAnimations::ID:
-    case telegram_api::inputStickerSetPremiumGifts::ID:
-    case telegram_api::inputStickerSetEmojiGenericAnimations::ID:
-    case telegram_api::inputStickerSetEmojiDefaultStatuses::ID:
-    case telegram_api::inputStickerSetEmojiChannelDefaultStatuses::ID:
-    case telegram_api::inputStickerSetEmojiDefaultTopicIcons::ID:
-      return add_special_sticker_set(SpecialStickerSetType(set_ptr)).id_;
-    case telegram_api::inputStickerSetDice::ID:
-      return StickerSetId();
-    default:
-      UNREACHABLE();
-      return StickerSetId();
-  }
-}
-
-void StickersManager::on_resolve_sticker_set_short_name(FileId sticker_file_id, const string &short_name) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Resolve sticker " << sticker_file_id << " set to " << short_name;
-  StickerSetId set_id = search_sticker_set(short_name, false, Auto());
-  if (set_id.is_valid()) {
-    auto *s = get_sticker(sticker_file_id);
-    CHECK(s != nullptr);
-    if (s->set_id_ != set_id) {
-      s->set_id_ = set_id;
-    }
-  }
-}
-
-void StickersManager::add_sticker_thumbnail(Sticker *s, PhotoSize thumbnail) {
-  if (!thumbnail.file_id.is_valid()) {
-    return;
-  }
-  if (thumbnail.type == 'm') {
-    s->m_thumbnail_ = std::move(thumbnail);
-    return;
-  }
-  if (thumbnail.type == 's' || thumbnail.type == 't') {
-    s->s_thumbnail_ = std::move(thumbnail);
-    return;
-  }
-  LOG(ERROR) << "Receive sticker thumbnail of unsupported type " << thumbnail.type;
-}
-
-void StickersManager::create_sticker(FileId file_id, FileId premium_animation_file_id, string minithumbnail,
-                                     PhotoSize thumbnail, Dimensions dimensions,
-                                     telegram_api::object_ptr<telegram_api::documentAttributeSticker> sticker,
-                                     telegram_api::object_ptr<telegram_api::documentAttributeCustomEmoji> custom_emoji,
-                                     StickerFormat format, MultiPromiseActor *load_data_multipromise_ptr) {
-  if (format == StickerFormat::Unknown && sticker == nullptr) {
-    auto old_sticker = get_sticker(file_id);
-    if (old_sticker != nullptr) {
-      format = old_sticker->format_;
-    } else {
-      // guess format by file extension
-      auto file_view = td_->file_manager_->get_file_view(file_id);
-      auto suggested_path = file_view.suggested_path();
-      const PathView path_view(suggested_path);
-      format = get_sticker_format_by_extension(path_view.extension());
-      if (format == StickerFormat::Unknown) {
-        format = StickerFormat::Webp;
-      }
-    }
-  }
-  if (is_sticker_format_vector(format) && dimensions.width == 0) {
-    dimensions.width = custom_emoji != nullptr ? 100 : 512;
-    dimensions.height = custom_emoji != nullptr ? 100 : 512;
-  }
-
-  auto s = make_unique<Sticker>();
-  s->file_id_ = file_id;
-  s->dimensions_ = dimensions;
-  if (!td_->auth_manager_->is_bot()) {
-    s->minithumbnail_ = std::move(minithumbnail);
-  }
-  add_sticker_thumbnail(s.get(), std::move(thumbnail));
-  if (premium_animation_file_id.is_valid()) {
-    s->is_premium_ = true;
-  }
-  s->premium_animation_file_id_ = premium_animation_file_id;
-  if (sticker != nullptr) {
-    s->set_id_ = on_get_input_sticker_set(file_id, std::move(sticker->stickerset_), load_data_multipromise_ptr);
-    s->alt_ = std::move(sticker->alt_);
-
-    if (sticker->mask_) {
-      s->type_ = StickerType::Mask;
-    }
-    s->mask_position_ = StickerMaskPosition(sticker->mask_coords_);
-  } else if (custom_emoji != nullptr) {
-    s->set_id_ = on_get_input_sticker_set(file_id, std::move(custom_emoji->stickerset_), load_data_multipromise_ptr);
-    s->alt_ = std::move(custom_emoji->alt_);
-    s->type_ = StickerType::CustomEmoji;
-    s->is_premium_ = !custom_emoji->free_;
-    s->has_text_color_ = custom_emoji->text_color_;
-    s->emoji_receive_date_ = G()->unix_time();
-  }
-  s->format_ = format;
-  on_get_sticker(std::move(s),
-                 (sticker != nullptr || custom_emoji != nullptr) && load_data_multipromise_ptr == nullptr);
-}
-
-bool StickersManager::has_secret_input_media(FileId sticker_file_id) const {
-  auto file_view = td_->file_manager_->get_file_view(sticker_file_id);
-  const Sticker *sticker = get_sticker(sticker_file_id);
-  CHECK(sticker != nullptr);
-  if (file_view.is_encrypted_secret()) {
-    return true;
-  }
-  if (sticker->set_id_.is_valid()) {
-    const auto *sticker_set = get_sticker_set(sticker->set_id_);
-    if (sticker_set != nullptr && td::contains(sticker_set->sticker_ids_, sticker_file_id)) {
-      // stickers within a set can be sent by id and access_hash
-      return true;
-    }
-  }
-  return false;
-}
-
-SecretInputMedia StickersManager::get_secret_input_media(
-    FileId sticker_file_id, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-    BufferSlice thumbnail, int32 layer) const {
-  const Sticker *sticker = get_sticker(sticker_file_id);
-  CHECK(sticker != nullptr);
-  auto file_view = td_->file_manager_->get_file_view(sticker_file_id);
-  if (file_view.is_encrypted_secret()) {
-    const auto *main_remote_location = file_view.get_main_remote_location();
-    if (main_remote_location != nullptr) {
-      input_file = main_remote_location->as_input_encrypted_file();
-    }
-    if (!input_file) {
-      return {};
-    }
-    if (sticker->s_thumbnail_.file_id.is_valid() && thumbnail.empty()) {
-      return {};
-    }
-  } else if (!file_view.is_encrypted()) {
-    if (!sticker->set_id_.is_valid()) {
-      // stickers without set can't be sent by id and access_hash
-      return {};
-    }
-  } else {
-    return {};
-  }
-
-  tl_object_ptr<secret_api::InputStickerSet> input_sticker_set = make_tl_object<secret_api::inputStickerSetEmpty>();
-  if (sticker->set_id_.is_valid()) {
-    const StickerSet *sticker_set = get_sticker_set(sticker->set_id_);
-    CHECK(sticker_set != nullptr);
-    if (sticker_set->is_inited_ && td::contains(sticker_set->sticker_ids_, sticker_file_id)) {
-      input_sticker_set = make_tl_object<secret_api::inputStickerSetShortName>(sticker_set->short_name_);
-    } else {
-      // TODO load sticker set
-    }
-  }
-
-  vector<secret_api::object_ptr<secret_api::DocumentAttribute>> attributes;
-  attributes.push_back(
-      secret_api::make_object<secret_api::documentAttributeSticker>(sticker->alt_, std::move(input_sticker_set)));
-  if (sticker->dimensions_.width != 0 && sticker->dimensions_.height != 0) {
-    attributes.push_back(secret_api::make_object<secret_api::documentAttributeImageSize>(sticker->dimensions_.width,
-                                                                                         sticker->dimensions_.height));
-  }
-
-  if (file_view.is_encrypted_secret()) {
-    return {std::move(input_file),
-            std::move(thumbnail),
-            sticker->s_thumbnail_.dimensions,
-            get_sticker_format_mime_type(sticker->format_),
-            file_view,
-            std::move(attributes),
-            string(),
-            layer};
-  } else {
-    CHECK(!file_view.is_encrypted());
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);  // because it has set_id
-    if (full_remote_location->is_web()) {
-      // web stickers shouldn't have set_id
-      LOG(ERROR) << "Have a web sticker in " << sticker->set_id_;
-      return {};
-    }
-    if (file_view.size() > 1000000000) {
-      LOG(ERROR) << "Have a sticker of size " << file_view.size() << " in " << sticker->set_id_;
-      return {};
-    }
-    return SecretInputMedia{nullptr,
-                            secret_api::make_object<secret_api::decryptedMessageMediaExternalDocument>(
-                                full_remote_location->get_id(), full_remote_location->get_access_hash(), 0 /*date*/,
-                                get_sticker_format_mime_type(sticker->format_), narrow_cast<int32>(file_view.size()),
-                                secret_api::make_object<secret_api::photoSizeEmpty>("t"),
-                                full_remote_location->get_dc_id().get_raw_id(), std::move(attributes))};
-  }
-}
-
-tl_object_ptr<telegram_api::InputMedia> StickersManager::get_input_media(
-    FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, const string &emoji) const {
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return nullptr;
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && !main_remote_location->is_web() && input_file == nullptr) {
-    int32 flags = 0;
-    if (!emoji.empty()) {
-      flags |= telegram_api::inputMediaDocument::QUERY_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaDocument>(
-        flags, false, main_remote_location->as_input_document(), nullptr, 0, 0, emoji);
-  }
-  const auto *url = file_view.get_url();
-  if (url != nullptr) {
-    return telegram_api::make_object<telegram_api::inputMediaDocumentExternal>(0, false, *url, 0, nullptr, 0);
-  }
-
-  if (input_file != nullptr) {
-    const Sticker *s = get_sticker(file_id);
-    CHECK(s != nullptr);
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    if (s->dimensions_.width != 0 && s->dimensions_.height != 0) {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeImageSize>(s->dimensions_.width,
-                                                                                               s->dimensions_.height));
-    }
-    attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeSticker>(
-        0, false, emoji.empty() ? s->alt_ : emoji, make_tl_object<telegram_api::inputStickerSetEmpty>(), nullptr));
-
-    int32 flags = 0;
-    if (input_thumbnail != nullptr) {
-      flags |= telegram_api::inputMediaUploadedDocument::THUMB_MASK;
-    }
-    auto mime_type = get_sticker_format_mime_type(s->format_);
-    return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-        flags, false, false, false, std::move(input_file), std::move(input_thumbnail), mime_type, std::move(attributes),
-        vector<telegram_api::object_ptr<telegram_api::InputDocument>>(), nullptr, 0, 0);
-  } else {
-    CHECK(main_remote_location == nullptr);
-  }
-
-  return nullptr;
-}
-
-StickerSetId StickersManager::on_get_sticker_set(tl_object_ptr<telegram_api::stickerSet> &&set, bool is_changed,
-                                                 const char *source) {
-  CHECK(set != nullptr);
-  StickerSetId set_id{set->id_};
-  StickerSet *s = add_sticker_set(set_id, set->access_hash_);
-  if (s == nullptr) {
-    return {};
-  }
-
-  bool is_installed = (set->flags_ & telegram_api::stickerSet::INSTALLED_DATE_MASK) != 0;
-  bool is_archived = set->archived_;
-  bool is_official = set->official_;
-  bool is_created = set->creator_;
-  bool has_text_color = set->emojis_ && set->text_color_;
-  bool channel_emoji_status = set->emojis_ && set->channel_emoji_status_;
-  StickerType sticker_type =
-      set->emojis_ ? StickerType::CustomEmoji : (set->masks_ ? StickerType::Mask : StickerType::Regular);
-
-  PhotoSize thumbnail;
-  string minithumbnail;
-  for (auto &thumbnail_ptr : set->thumbs_) {
-    auto photo_size =
-        get_photo_size(td_->file_manager_.get(),
-                       PhotoSizeSource::sticker_set_thumbnail(set_id.get(), s->access_hash_, set->thumb_version_), 0, 0,
-                       "", DcId::create(set->thumb_dc_id_), DialogId(), std::move(thumbnail_ptr), PhotoFormat::Tgs);
-    if (photo_size.get_offset() == 0) {
-      if (!thumbnail.file_id.is_valid()) {
-        thumbnail = std::move(photo_size.get<0>());
-      }
-    } else {
-      minithumbnail = std::move(photo_size.get<1>());
-    }
-  }
-  if (!s->is_inited_) {
-    LOG(INFO) << "Init " << set_id;
-    s->is_inited_ = true;
-    s->title_ = std::move(set->title_);
-    s->short_name_ = std::move(set->short_name_);
-    if (!td_->auth_manager_->is_bot()) {
-      s->minithumbnail_ = std::move(minithumbnail);
-    }
-    s->thumbnail_ = std::move(thumbnail);
-    s->thumbnail_document_id_ = set->thumb_document_id_;
-    s->is_thumbnail_reloaded_ = true;
-    s->are_legacy_sticker_thumbnails_reloaded_ = true;
-    s->sticker_count_ = set->count_;
-    s->hash_ = set->hash_;
-    s->is_official_ = is_official;
-    s->sticker_type_ = sticker_type;
-    s->has_text_color_ = has_text_color;
-    s->channel_emoji_status_ = channel_emoji_status;
-    s->is_created_ = is_created;
-    s->is_changed_ = true;
-  } else {
-    CHECK(s->id_ == set_id);
-    auto type = static_cast<int32>(s->sticker_type_);
-    if (s->access_hash_ != set->access_hash_) {
-      LOG(INFO) << "Access hash of " << set_id << " has changed";
-      s->access_hash_ = set->access_hash_;
-      s->need_save_to_database_ = true;
-    }
-    if (s->title_ != set->title_) {
-      LOG(INFO) << "Title of " << set_id << " has changed";
-      s->title_ = std::move(set->title_);
-      s->is_changed_ = true;
-
-      if (installed_sticker_sets_hints_[type].has_key(set_id.get())) {
-        installed_sticker_sets_hints_[type].add(set_id.get(), PSLICE() << s->title_ << ' ' << s->short_name_);
-      }
-    }
-    if (s->short_name_ != set->short_name_) {
-      LOG(INFO) << "Short name of " << set_id << " has changed from \"" << s->short_name_ << "\" to \""
-                << set->short_name_ << "\" from " << source;
-      short_name_to_sticker_set_id_.erase(clean_username(s->short_name_));
-      s->short_name_ = std::move(set->short_name_);
-      s->is_changed_ = true;
-
-      if (installed_sticker_sets_hints_[type].has_key(set_id.get())) {
-        installed_sticker_sets_hints_[type].add(set_id.get(), PSLICE() << s->title_ << ' ' << s->short_name_);
-      }
-    }
-    if (s->minithumbnail_ != minithumbnail) {
-      LOG(INFO) << "Minithumbnail of " << set_id << " has changed";
-      s->minithumbnail_ = std::move(minithumbnail);
-      s->is_changed_ = true;
-    }
-    if (s->thumbnail_ != thumbnail) {
-      LOG(INFO) << "Thumbnail of " << set_id << " has changed from " << s->thumbnail_ << " to " << thumbnail;
-      s->thumbnail_ = std::move(thumbnail);
-      s->is_changed_ = true;
-    }
-    if (s->thumbnail_document_id_ != set->thumb_document_id_) {
-      LOG(INFO) << "Thumbnail of " << set_id << " has changed from " << s->thumbnail_document_id_ << " to "
-                << set->thumb_document_id_;
-      s->thumbnail_document_id_ = set->thumb_document_id_;
-      s->is_changed_ = true;
-    }
-    if (!s->is_thumbnail_reloaded_ || !s->are_legacy_sticker_thumbnails_reloaded_) {
-      LOG(INFO) << "Sticker thumbnails and thumbnail of " << set_id << " was reloaded";
-      s->is_thumbnail_reloaded_ = true;
-      s->are_legacy_sticker_thumbnails_reloaded_ = true;
-      s->need_save_to_database_ = true;
-    }
-
-    if (s->sticker_count_ != set->count_ || s->hash_ != set->hash_) {
-      LOG(INFO) << "Number of stickers in " << set_id << " changed from " << s->sticker_count_ << " to " << set->count_;
-      s->is_loaded_ = false;
-
-      s->sticker_count_ = set->count_;
-      s->hash_ = set->hash_;
-      if (s->was_loaded_) {
-        s->need_save_to_database_ = true;
-      } else {
-        s->is_changed_ = true;
-      }
-    }
-
-    if (s->is_official_ != is_official) {
-      LOG(INFO) << "Official flag of " << set_id << " changed to " << is_official;
-      s->is_official_ = is_official;
-      s->is_changed_ = true;
-    }
-    if (s->is_created_ != is_created) {
-      s->is_created_ = is_created;
-      s->is_changed_ = true;
-    }
-    if (s->has_text_color_ != has_text_color) {
-      LOG(INFO) << "Needs repainting flag of " << set_id << " changed to " << has_text_color;
-      s->has_text_color_ = has_text_color;
-      s->is_changed_ = true;
-    }
-    if (s->channel_emoji_status_ != channel_emoji_status) {
-      LOG(INFO) << "Channel e,oji status flag of " << set_id << " changed to " << channel_emoji_status;
-      s->channel_emoji_status_ = channel_emoji_status;
-      s->is_changed_ = true;
-    }
-    LOG_IF(ERROR, s->sticker_type_ != sticker_type)
-        << "Type of " << set_id << '/' << s->short_name_ << " has changed from " << s->sticker_type_ << " to "
-        << sticker_type << " from " << source;
-  }
-  auto cleaned_username = clean_username(s->short_name_);
-  if (!cleaned_username.empty()) {
-    short_name_to_sticker_set_id_.set(cleaned_username, set_id);
-  }
-
-  on_update_sticker_set(s, is_installed, is_archived, is_changed);
-
-  return set_id;
-}
-
-StickerSetId StickersManager::on_get_sticker_set_covered(tl_object_ptr<telegram_api::StickerSetCovered> &&set_ptr,
-                                                         bool is_changed, const char *source) {
-  StickerSetId set_id;
-  switch (set_ptr->get_id()) {
-    case telegram_api::stickerSetCovered::ID: {
-      auto covered_set = move_tl_object_as<telegram_api::stickerSetCovered>(set_ptr);
-      set_id = on_get_sticker_set(std::move(covered_set->set_), is_changed, source);
-      if (!set_id.is_valid()) {
-        break;
-      }
-
-      auto sticker_set = get_sticker_set(set_id);
-      CHECK(sticker_set != nullptr);
-      CHECK(sticker_set->is_inited_);
-      if (sticker_set->was_loaded_) {
-        break;
-      }
-      if (sticker_set->sticker_count_ == 0) {
-        break;
-      }
-
-      auto &sticker_ids = sticker_set->sticker_ids_;
-
-      auto sticker_id = on_get_sticker_document(std::move(covered_set->cover_), StickerFormat::Unknown, source).second;
-      if (sticker_id.is_valid() && !td::contains(sticker_ids, sticker_id)) {
-        sticker_ids.push_back(sticker_id);
-        sticker_set->is_changed_ = true;
-      }
-
-      break;
-    }
-    case telegram_api::stickerSetMultiCovered::ID: {
-      auto multicovered_set = move_tl_object_as<telegram_api::stickerSetMultiCovered>(set_ptr);
-      set_id = on_get_sticker_set(std::move(multicovered_set->set_), is_changed, source);
-      if (!set_id.is_valid()) {
-        break;
-      }
-
-      auto sticker_set = get_sticker_set(set_id);
-      CHECK(sticker_set != nullptr);
-      CHECK(sticker_set->is_inited_);
-      if (sticker_set->was_loaded_) {
-        break;
-      }
-      auto &sticker_ids = sticker_set->sticker_ids_;
-
-      for (auto &cover : multicovered_set->covers_) {
-        auto sticker_id = on_get_sticker_document(std::move(cover), StickerFormat::Unknown, source).second;
-        if (sticker_id.is_valid() && !td::contains(sticker_ids, sticker_id)) {
-          sticker_ids.push_back(sticker_id);
-          sticker_set->is_changed_ = true;
-        }
-      }
-
-      break;
-    }
-    case telegram_api::stickerSetFullCovered::ID: {
-      auto set = move_tl_object_as<telegram_api::stickerSetFullCovered>(set_ptr);
-      auto sticker_set = telegram_api::make_object<telegram_api::messages_stickerSet>(
-          std::move(set->set_), std::move(set->packs_), std::move(set->keywords_), std::move(set->documents_));
-      return on_get_messages_sticker_set(StickerSetId(), std::move(sticker_set), is_changed, source);
-    }
-    case telegram_api::stickerSetNoCovered::ID: {
-      auto covered_set = move_tl_object_as<telegram_api::stickerSetNoCovered>(set_ptr);
-      set_id = on_get_sticker_set(std::move(covered_set->set_), is_changed, source);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return set_id;
-}
-
-StickerSetId StickersManager::on_get_messages_sticker_set(StickerSetId sticker_set_id,
-                                                          tl_object_ptr<telegram_api::messages_StickerSet> &&set_ptr,
-                                                          bool is_changed, const char *source) {
-  LOG(INFO) << "Receive sticker set " << to_string(set_ptr);
-  if (set_ptr->get_id() == telegram_api::messages_stickerSetNotModified::ID) {
-    if (!sticker_set_id.is_valid()) {
-      LOG(ERROR) << "Receive unexpected stickerSetNotModified from " << source;
-    } else {
-      auto s = get_sticker_set(sticker_set_id);
-      CHECK(s != nullptr);
-      CHECK(s->is_inited_);
-      CHECK(s->was_loaded_);
-
-      s->is_loaded_ = true;
-      s->expires_at_ = G()->unix_time() +
-                       (td_->auth_manager_->is_bot() ? Random::fast(10 * 60, 15 * 60) : Random::fast(30 * 60, 50 * 60));
-    }
-    return sticker_set_id;
-  }
-  auto set = move_tl_object_as<telegram_api::messages_stickerSet>(set_ptr);
-
-  auto set_id = on_get_sticker_set(std::move(set->set_), is_changed, source);
-  if (!set_id.is_valid()) {
-    return StickerSetId();
-  }
-  if (sticker_set_id.is_valid() && sticker_set_id != set_id) {
-    LOG(ERROR) << "Expected " << sticker_set_id << ", but receive " << set_id << " from " << source;
-    on_load_sticker_set_fail(sticker_set_id, Status::Error(500, "Internal Server Error: wrong sticker set received"));
-    return StickerSetId();
-  }
-
-  auto s = get_sticker_set(set_id);
-  CHECK(s != nullptr);
-  CHECK(s->is_inited_);
-
-  s->expires_at_ = G()->unix_time() +
-                   (td_->auth_manager_->is_bot() ? Random::fast(10 * 60, 15 * 60) : Random::fast(30 * 60, 50 * 60));
-
-  if (s->is_loaded_) {
-    update_sticker_set(s, "on_get_messages_sticker_set");
-    send_update_installed_sticker_sets();
-    return set_id;
-  }
-  s->was_loaded_ = true;
-  s->is_loaded_ = true;
-  s->is_changed_ = true;
-  s->are_keywords_loaded_ = true;
-  s->is_sticker_has_text_color_loaded_ = true;
-  s->is_sticker_channel_emoji_status_loaded_ = true;
-  s->is_created_loaded_ = true;
-
-  FlatHashMap<int64, FileId> document_id_to_sticker_id;
-
-  s->sticker_ids_.clear();
-  s->premium_sticker_positions_.clear();
-  bool is_bot = td_->auth_manager_->is_bot();
-  for (auto &document_ptr : set->documents_) {
-    auto sticker_id = on_get_sticker_document(std::move(document_ptr), StickerFormat::Unknown, source);
-    if (!sticker_id.second.is_valid() || sticker_id.first == 0) {
-      continue;
-    }
-
-    if (!is_bot && get_sticker(sticker_id.second)->is_premium_) {
-      s->premium_sticker_positions_.push_back(static_cast<int32>(s->sticker_ids_.size()));
-    }
-    s->sticker_ids_.push_back(sticker_id.second);
-    if (!is_bot) {
-      document_id_to_sticker_id.emplace(sticker_id.first, sticker_id.second);
-    }
-  }
-  auto get_full_source = [&] {
-    return PSTRING() << set_id << '/' << s->short_name_ << " from " << source;
-  };
-  if (static_cast<int32>(s->sticker_ids_.size()) != s->sticker_count_) {
-    LOG(ERROR) << "Wrong sticker set size " << s->sticker_count_ << " instead of " << s->sticker_ids_.size()
-               << " specified in " << get_full_source();
-    s->sticker_count_ = static_cast<int32>(s->sticker_ids_.size());
-  }
-
-  if (!is_bot) {
-    s->emoji_stickers_map_.clear();
-    s->sticker_emojis_map_.clear();
-    s->keyword_stickers_map_.clear();
-    s->sticker_keywords_map_.clear();
-    for (auto &pack : set->packs_) {
-      auto cleaned_emoji = remove_emoji_modifiers(pack->emoticon_);
-      if (cleaned_emoji.empty()) {
-        LOG(ERROR) << "Receive empty emoji in " << get_full_source();
-        continue;
-      }
-
-      vector<FileId> stickers;
-      stickers.reserve(pack->documents_.size());
-      for (int64 document_id : pack->documents_) {
-        auto it = document_id_to_sticker_id.find(document_id);
-        if (it == document_id_to_sticker_id.end()) {
-          LOG(ERROR) << "Can't find document with ID " << document_id << " in " << get_full_source();
-          continue;
-        }
-
-        stickers.push_back(it->second);
-        s->sticker_emojis_map_[it->second].push_back(pack->emoticon_);
-      }
-
-      auto &sticker_ids = s->emoji_stickers_map_[cleaned_emoji];
-      for (auto sticker_id : stickers) {
-        if (!td::contains(sticker_ids, sticker_id)) {
-          sticker_ids.push_back(sticker_id);
-        }
-      }
-    }
-    for (auto &keywords : set->keywords_) {
-      auto document_id = keywords->document_id_;
-      auto it = document_id_to_sticker_id.find(document_id);
-      if (it == document_id_to_sticker_id.end()) {
-        LOG(ERROR) << "Can't find document with ID " << document_id << " in " << get_full_source();
-        continue;
-      }
-
-      bool is_inserted = s->sticker_keywords_map_.emplace(it->second, std::move(keywords->keyword_)).second;
-      if (!is_inserted) {
-        LOG(ERROR) << "Receive twice document with ID " << document_id << " in " << get_full_source();
-      }
-    }
-  }
-
-  update_sticker_set(s, "on_get_messages_sticker_set 2");
-  update_load_requests(s, true, Status::OK());
-  send_update_installed_sticker_sets();
-
-  if (set_id == add_special_sticker_set(SpecialStickerSetType::animated_emoji()).id_) {
-    try_update_animated_emoji_messages();
-  }
-  if (set_id == add_special_sticker_set(SpecialStickerSetType::premium_gifts()).id_) {
-    try_update_premium_gift_messages();
-  }
-
-  return set_id;
-}
-
-void StickersManager::on_load_sticker_set_fail(StickerSetId sticker_set_id, const Status &error) {
-  if (!sticker_set_id.is_valid()) {
-    return;
-  }
-  update_load_requests(get_sticker_set(sticker_set_id), true, error);
-}
-
-void StickersManager::on_sticker_set_deleted(const string &short_name) {
-  // clear short_name_to_sticker_set_id_ to allow next searchStickerSet request to succeed
-  LOG(INFO) << "Remove information about deleted sticker set " << short_name;
-  short_name_to_sticker_set_id_.erase(clean_username(short_name));
-}
-
-void StickersManager::update_load_requests(StickerSet *sticker_set, bool with_stickers, const Status &status) {
-  if (sticker_set == nullptr) {
-    return;
-  }
-  if (with_stickers) {
-    for (auto load_request_id : sticker_set->load_requests_) {
-      update_load_request(load_request_id, status);
-    }
-
-    sticker_set->load_requests_.clear();
-  }
-  for (auto load_request_id : sticker_set->load_without_stickers_requests_) {
-    update_load_request(load_request_id, status);
-  }
-
-  sticker_set->load_without_stickers_requests_.clear();
-
-  if (status.message() == "STICKERSET_INVALID") {
-    // the sticker set is likely to be deleted
-    on_sticker_set_deleted(sticker_set->short_name_);
-  }
-}
-
-void StickersManager::update_load_request(uint32 load_request_id, const Status &status) {
-  auto it = sticker_set_load_requests_.find(load_request_id);
-  CHECK(it != sticker_set_load_requests_.end());
-  CHECK(it->second.left_queries_ > 0);
-  if (status.is_error() && it->second.error_.is_ok()) {
-    it->second.error_ = status.clone();
-  }
-  if (--it->second.left_queries_ == 0) {
-    if (it->second.error_.is_ok()) {
-      it->second.promise_.set_value(Unit());
-    } else {
-      it->second.promise_.set_error(std::move(it->second.error_));
-    }
-    sticker_set_load_requests_.erase(it);
-  }
-}
-
-void StickersManager::on_get_sticker_set_name(StickerSetId sticker_set_id,
-                                              telegram_api::object_ptr<telegram_api::messages_StickerSet> &&set_ptr) {
-  auto it = sticker_set_name_load_queries_.find(sticker_set_id);
-  CHECK(it != sticker_set_name_load_queries_.end());
-  auto promises = std::move(it->second);
-  sticker_set_name_load_queries_.erase(it);
-  if (set_ptr == nullptr || set_ptr->get_id() != telegram_api::messages_stickerSet::ID) {
-    return fail_promises(promises, Status::Error(500, "Failed to get sticker set name"));
-  }
-  auto set = telegram_api::move_object_as<telegram_api::messages_stickerSet>(set_ptr);
-  if (sticker_set_id != StickerSetId(set->set_->id_)) {
-    LOG(ERROR) << "Expected " << sticker_set_id << ", but receive " << StickerSetId(set->set_->id_);
-    return fail_promises(promises, Status::Error(500, "Failed to get correct sticker set name"));
-  }
-
-  StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-  CHECK(sticker_set != nullptr);
-  if (!sticker_set->is_inited_) {
-    sticker_set->short_name_ = std::move(set->set_->short_name_);
-  }
-
-  for (auto &promise : promises) {
-    promise.set_value(string(sticker_set->short_name_));
-  }
-}
-
-void StickersManager::on_get_special_sticker_set(const SpecialStickerSetType &type, StickerSetId sticker_set_id) {
-  auto s = get_sticker_set(sticker_set_id);
-  CHECK(s != nullptr);
-  CHECK(s->is_inited_);
-  CHECK(s->is_loaded_);
-
-  LOG(INFO) << "Receive special sticker set " << type.type_ << ": " << sticker_set_id << ' ' << s->access_hash_ << ' '
-            << s->short_name_;
-  auto &sticker_set = add_special_sticker_set(type);
-  auto new_short_name = clean_username(s->short_name_);
-  if (sticker_set_id == sticker_set.id_ && s->access_hash_ == sticker_set.access_hash_ &&
-      new_short_name == sticker_set.short_name_ && !new_short_name.empty()) {
-    on_load_special_sticker_set(type, Status::OK());
-    return;
-  }
-
-  sticker_set.id_ = sticker_set_id;
-  sticker_set.access_hash_ = s->access_hash_;
-  sticker_set.short_name_ = std::move(new_short_name);
-  sticker_set.type_ = type;
-
-  if (!td_->auth_manager_->is_bot()) {
-    G()->td_db()->get_binlog_pmc()->set(type.type_, PSTRING()
-                                                        << sticker_set.id_.get() << ' ' << sticker_set.access_hash_
-                                                        << ' ' << sticker_set.short_name_);
-  }
-
-  sticker_set.is_being_loaded_ = true;
-  on_load_special_sticker_set(type, Status::OK());
-}
-
-void StickersManager::on_get_installed_sticker_sets(StickerType sticker_type,
-                                                    tl_object_ptr<telegram_api::messages_AllStickers> &&stickers_ptr) {
-  auto type = static_cast<int32>(sticker_type);
-  next_installed_sticker_sets_load_time_[type] = Time::now_cached() + Random::fast(30 * 60, 50 * 60);
-
-  CHECK(stickers_ptr != nullptr);
-  int32 constructor_id = stickers_ptr->get_id();
-  if (constructor_id == telegram_api::messages_allStickersNotModified::ID) {
-    LOG(INFO) << sticker_type << " stickers are not modified";
-    return;
-  }
-  CHECK(constructor_id == telegram_api::messages_allStickers::ID);
-  auto stickers = move_tl_object_as<telegram_api::messages_allStickers>(stickers_ptr);
-
-  FlatHashSet<StickerSetId, StickerSetIdHash> uninstalled_sticker_sets;
-  for (auto &sticker_set_id : installed_sticker_set_ids_[type]) {
-    uninstalled_sticker_sets.insert(sticker_set_id);
-  }
-
-  vector<StickerSetId> sets_to_load;
-  vector<StickerSetId> installed_sticker_set_ids;
-  vector<int32> debug_hashes;
-  vector<int64> debug_sticker_set_ids;
-  std::reverse(stickers->sets_.begin(), stickers->sets_.end());  // apply installed sticker sets in reverse order
-  for (auto &set : stickers->sets_) {
-    debug_hashes.push_back(set->hash_);
-    debug_sticker_set_ids.push_back(set->id_);
-    StickerSetId set_id = on_get_sticker_set(std::move(set), false, "on_get_installed_sticker_sets");
-    if (!set_id.is_valid()) {
-      continue;
-    }
-
-    auto sticker_set = get_sticker_set(set_id);
-    CHECK(sticker_set != nullptr);
-    CHECK(sticker_set->is_inited_);
-
-    if (sticker_set->is_installed_ && !sticker_set->is_archived_ && sticker_set->sticker_type_ == sticker_type) {
-      installed_sticker_set_ids.push_back(set_id);
-      uninstalled_sticker_sets.erase(set_id);
-    } else {
-      LOG_IF(ERROR, !sticker_set->is_installed_) << "Receive non-installed sticker set in getAllStickers";
-      LOG_IF(ERROR, sticker_set->is_archived_) << "Receive archived sticker set in getAllStickers";
-      LOG_IF(ERROR, sticker_set->sticker_type_ != sticker_type)
-          << "Receive sticker set of a wrong type in getAllStickers";
-    }
-    update_sticker_set(sticker_set, "on_get_installed_sticker_sets");
-
-    if (!sticker_set->is_archived_ && !sticker_set->is_loaded_) {
-      sets_to_load.push_back(set_id);
-    }
-  }
-  std::reverse(debug_hashes.begin(), debug_hashes.end());
-  std::reverse(installed_sticker_set_ids.begin(), installed_sticker_set_ids.end());
-  std::reverse(debug_sticker_set_ids.begin(), debug_sticker_set_ids.end());
-
-  if (!sets_to_load.empty()) {
-    load_sticker_sets(std::move(sets_to_load), Auto());
-  }
-
-  for (auto set_id : uninstalled_sticker_sets) {
-    auto sticker_set = get_sticker_set(set_id);
-    CHECK(sticker_set != nullptr);
-    CHECK(sticker_set->is_installed_ && !sticker_set->is_archived_);
-    on_update_sticker_set(sticker_set, false, false, true);
-    update_sticker_set(sticker_set, "on_get_installed_sticker_sets 2");
-  }
-
-  on_load_installed_sticker_sets_finished(sticker_type, std::move(installed_sticker_set_ids));
-
-  if (installed_sticker_sets_hash_[type] != stickers->hash_) {
-    LOG(ERROR) << "Sticker sets hash mismatch: server hash list = " << debug_hashes << ", client hash list = "
-               << transform(installed_sticker_set_ids_[type],
-                            [this](StickerSetId sticker_set_id) { return get_sticker_set(sticker_set_id)->hash_; })
-               << ", server sticker set list = " << debug_sticker_set_ids
-               << ", client sticker set list = " << installed_sticker_set_ids_[type]
-               << ", server hash = " << stickers->hash_ << ", client hash = " << installed_sticker_sets_hash_[type];
-  }
-}
-
-void StickersManager::on_get_installed_sticker_sets_failed(StickerType sticker_type, Status error) {
-  CHECK(error.is_error());
-  auto type = static_cast<int32>(sticker_type);
-  next_installed_sticker_sets_load_time_[type] = Time::now_cached() + Random::fast(5, 10);
-  fail_promises(load_installed_sticker_sets_queries_[type], std::move(error));
-}
-
-const std::map<string, vector<FileId>> &StickersManager::get_sticker_set_keywords(const StickerSet *sticker_set) {
-  if (sticker_set->keyword_stickers_map_.empty()) {
-    for (auto &sticker_id_keywords : sticker_set->sticker_keywords_map_) {
-      for (auto &keyword : Hints::fix_words(transform(sticker_id_keywords.second, utf8_prepare_search_string))) {
-        CHECK(!keyword.empty());
-        sticker_set->keyword_stickers_map_[keyword].push_back(sticker_id_keywords.first);
-      }
-    }
-  }
-  return sticker_set->keyword_stickers_map_;
-}
-
-void StickersManager::find_sticker_set_stickers(const StickerSet *sticker_set, const vector<string> &emojis,
-                                                const string &query, vector<std::pair<bool, FileId>> &result) const {
-  CHECK(sticker_set != nullptr);
-  FlatHashSet<FileId, FileIdHash> found_sticker_ids;
-  for (auto &emoji : emojis) {
-    auto it = sticker_set->emoji_stickers_map_.find(emoji);
-    if (it != sticker_set->emoji_stickers_map_.end()) {
-      found_sticker_ids.insert(it->second.begin(), it->second.end());
-    }
-  }
-  if (!query.empty()) {
-    const auto &keywords_map = get_sticker_set_keywords(sticker_set);
-    for (auto it = keywords_map.lower_bound(query); it != keywords_map.end() && begins_with(it->first, query); ++it) {
-      found_sticker_ids.insert(it->second.begin(), it->second.end());
-    }
-  }
-
-  if (!found_sticker_ids.empty()) {
-    for (auto sticker_id : sticker_set->sticker_ids_) {
-      if (found_sticker_ids.count(sticker_id) != 0) {
-        const Sticker *s = get_sticker(sticker_id);
-        LOG(INFO) << "Add " << sticker_id << " sticker from " << sticker_set->id_;
-        result.emplace_back(is_sticker_format_animated(s->format_), sticker_id);
-      }
-    }
-  }
-}
-
-bool StickersManager::can_find_sticker_by_query(FileId sticker_id, const vector<string> &emojis,
-                                                const string &query) const {
-  const Sticker *s = get_sticker(sticker_id);
-  CHECK(s != nullptr);
-  if (td::contains(emojis, remove_emoji_modifiers(s->alt_))) {
-    // fast path
-    return true;
-  }
-  const StickerSet *sticker_set = get_sticker_set(s->set_id_);
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    return false;
-  }
-  for (auto &emoji : emojis) {
-    auto it = sticker_set->emoji_stickers_map_.find(emoji);
-    if (it != sticker_set->emoji_stickers_map_.end()) {
-      if (td::contains(it->second, sticker_id)) {
-        return true;
-      }
-    }
-  }
-
-  if (!query.empty()) {
-    const auto &keywords_map = get_sticker_set_keywords(sticker_set);
-    for (auto it = keywords_map.lower_bound(query); it != keywords_map.end() && begins_with(it->first, query); ++it) {
-      if (td::contains(it->second, sticker_id)) {
-        return true;
-      }
-    }
-  }
-
-  return false;
-}
-
-std::pair<vector<FileId>, vector<FileId>> StickersManager::split_stickers_by_premium(
-    const vector<FileId> &sticker_ids) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  vector<FileId> regular_sticker_ids;
-  vector<FileId> premium_sticker_ids;
-  for (const auto &sticker_id : sticker_ids) {
-    if (sticker_id.is_valid()) {
-      const Sticker *s = get_sticker(sticker_id);
-      CHECK(s != nullptr);
-      if (s->is_premium_) {
-        premium_sticker_ids.push_back(sticker_id);
-      } else {
-        regular_sticker_ids.push_back(sticker_id);
-      }
-    }
-  }
-  return {std::move(regular_sticker_ids), std::move(premium_sticker_ids)};
-}
-
-std::pair<vector<FileId>, vector<FileId>> StickersManager::split_stickers_by_premium(
-    const StickerSet *sticker_set) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!sticker_set->was_loaded_) {
-    return split_stickers_by_premium(sticker_set->sticker_ids_);
-  }
-  if (sticker_set->premium_sticker_positions_.empty()) {
-    return {sticker_set->sticker_ids_, {}};
-  }
-  vector<FileId> regular_sticker_ids;
-  vector<FileId> premium_sticker_ids;
-  size_t premium_pos = 0;
-  for (size_t i = 0; i < sticker_set->sticker_ids_.size(); i++) {
-    if (premium_pos < sticker_set->premium_sticker_positions_.size() &&
-        static_cast<size_t>(sticker_set->premium_sticker_positions_[premium_pos]) == i) {
-      premium_sticker_ids.push_back(sticker_set->sticker_ids_[i]);
-      premium_pos++;
-    } else {
-      regular_sticker_ids.push_back(sticker_set->sticker_ids_[i]);
-    }
-  }
-  CHECK(premium_pos == sticker_set->premium_sticker_positions_.size());
-  return {std::move(regular_sticker_ids), std::move(premium_sticker_ids)};
-}
-
-vector<FileId> StickersManager::get_stickers(StickerType sticker_type, string query, int32 limit, DialogId dialog_id,
-                                             bool force, Promise<Unit> &&promise) {
-  if (G()->close_flag()) {
-    promise.set_error(Global::request_aborted_error());
-    return {};
-  }
-
-  if (limit <= 0) {
-    promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-    return {};
-  }
-
-  auto type = static_cast<int32>(sticker_type);
-  if (!are_installed_sticker_sets_loaded_[type]) {
-    CHECK(!force);
-    load_installed_sticker_sets(
-        sticker_type,
-        PromiseCreator::lambda([actor_id = actor_id(this), sticker_type, query = std::move(query), limit, dialog_id,
-                                force, promise = std::move(promise)](Result<Unit> result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &StickersManager::get_stickers, sticker_type, std::move(query), limit, dialog_id,
-                         force, std::move(promise));
-          }
-        }));
-    return {};
-  }
-
-  bool return_all_installed = query.empty();
-
-  remove_emoji_modifiers_in_place(query);
-  auto emojis = full_split(query, ' ');
-  for (auto &emoji : emojis) {
-    if (!is_emoji(emoji)) {
-      emojis.clear();
-      break;
-    }
-  }
-  if (!return_all_installed) {
-    if (sticker_type == StickerType::Regular) {
-      if (!are_recent_stickers_loaded_[0 /*is_attached*/]) {
-        load_recent_stickers(false, std::move(promise));
-        return {};
-      }
-      if (!are_favorite_stickers_loaded_) {
-        load_favorite_stickers(std::move(promise));
-        return {};
-      }
-    } else if (sticker_type == StickerType::CustomEmoji) {
-      if (!are_featured_sticker_sets_loaded_[type]) {
-        load_featured_sticker_sets(sticker_type, std::move(promise));
-        return {};
-      }
-    }
-  }
-
-  vector<StickerSetId> examined_sticker_set_ids = installed_sticker_set_ids_[type];
-  if (!return_all_installed && sticker_type == StickerType::CustomEmoji) {
-    append(examined_sticker_set_ids, featured_sticker_set_ids_[type]);
-  }
-
-  vector<StickerSetId> sets_to_load;
-  bool need_load = false;
-  for (const auto &sticker_set_id : examined_sticker_set_ids) {
-    const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    CHECK(sticker_set != nullptr);
-    CHECK(sticker_set->is_inited_);
-    if (!sticker_set->is_loaded_) {
-      sets_to_load.push_back(sticker_set_id);
-      if (!sticker_set->was_loaded_) {
-        need_load = true;
-      }
-    }
-  }
-
-  vector<FileId> prepend_sticker_ids;
-  if (!return_all_installed && sticker_type == StickerType::Regular) {
-    prepend_sticker_ids.reserve(favorite_sticker_ids_.size() + recent_sticker_ids_[0].size());
-    append(prepend_sticker_ids, recent_sticker_ids_[0]);
-    for (auto sticker_id : favorite_sticker_ids_) {
-      if (!td::contains(prepend_sticker_ids, sticker_id)) {
-        prepend_sticker_ids.push_back(sticker_id);
-      }
-    }
-
-    auto prefer_animated = [this](FileId lhs, FileId rhs) {
-      const Sticker *lhs_s = get_sticker(lhs);
-      const Sticker *rhs_s = get_sticker(rhs);
-      CHECK(lhs_s != nullptr && rhs_s != nullptr);
-      return is_sticker_format_animated(lhs_s->format_) && !is_sticker_format_animated(rhs_s->format_);
-    };
-    // std::stable_sort(prepend_sticker_ids.begin(), prepend_sticker_ids.begin() + recent_sticker_ids_[0].size(),
-    //                  prefer_animated);
-    std::stable_sort(prepend_sticker_ids.begin() + recent_sticker_ids_[0].size(), prepend_sticker_ids.end(),
-                     prefer_animated);
-
-    LOG(INFO) << "Have " << recent_sticker_ids_[0] << " recent and " << favorite_sticker_ids_ << " favorite stickers";
-    for (const auto &sticker_id : prepend_sticker_ids) {
-      const Sticker *s = get_sticker(sticker_id);
-      CHECK(s != nullptr);
-      LOG(INFO) << "Have prepend sticker " << sticker_id << " from " << s->set_id_;
-      if (s->set_id_.is_valid() && !td::contains(sets_to_load, s->set_id_)) {
-        const StickerSet *sticker_set = get_sticker_set(s->set_id_);
-        if (sticker_set == nullptr || !sticker_set->is_loaded_) {
-          sets_to_load.push_back(s->set_id_);
-          if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-            need_load = true;
-          }
-        }
-      }
-    }
-  }
-
-  if (!sets_to_load.empty()) {
-    if (need_load && !force) {
-      load_sticker_sets(std::move(sets_to_load),
-                        PromiseCreator::lambda([promise = std::move(promise)](Result<Unit> result) mutable {
-                          if (result.is_error() && result.error().message() != "STICKERSET_INVALID") {
-                            LOG(ERROR) << "Failed to load sticker sets: " << result.error();
-                          }
-                          promise.set_value(Unit());
-                        }));
-      return {};
-    } else {
-      load_sticker_sets(std::move(sets_to_load), Auto());
-    }
-  }
-
-  bool allow_premium = false;
-  if (sticker_type == StickerType::CustomEmoji) {
-    switch (dialog_id.get_type()) {
-      case DialogType::User:
-        if (dialog_id.get_user_id() == td_->user_manager_->get_my_id()) {
-          allow_premium = true;
-        }
-        break;
-      case DialogType::SecretChat:
-        if (td_->user_manager_->get_secret_chat_layer(dialog_id.get_secret_chat_id()) <
-            static_cast<int32>(SecretChatLayer::SpoilerAndCustomEmojiEntities)) {
-          promise.set_value(Unit());
-          return {};
-        }
-        break;
-      default:
-        break;
-    }
-  }
-
-  vector<FileId> result;
-  auto limit_size_t = static_cast<size_t>(limit);
-  if (return_all_installed) {
-    for (const auto &sticker_set_id : examined_sticker_set_ids) {
-      const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-      if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-        continue;
-      }
-
-      append(result, sticker_set->sticker_ids_);
-      if (result.size() > limit_size_t) {
-        result.resize(limit_size_t);
-        break;
-      }
-    }
-  } else {
-    auto prepared_query = utf8_prepare_search_string(query);
-    LOG(INFO) << "Search stickers by " << emojis << " and keyword " << prepared_query;
-    vector<const StickerSet *> examined_sticker_sets;
-    for (const auto &sticker_set_id : examined_sticker_set_ids) {
-      const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-      if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-        continue;
-      }
-
-      if (!td::contains(examined_sticker_sets, sticker_set)) {
-        examined_sticker_sets.push_back(sticker_set);
-      }
-    }
-    vector<std::pair<bool, FileId>> partial_results[2][2];
-    for (auto sticker_set : examined_sticker_sets) {
-      find_sticker_set_stickers(sticker_set, emojis, prepared_query,
-                                partial_results[sticker_set->is_installed_][sticker_set->is_archived_]);
-    }
-    for (int is_installed = 1; is_installed >= 0; is_installed--) {
-      for (int is_archived = 1; is_archived >= 0; is_archived--) {
-        auto &partial_result = partial_results[is_installed][is_archived];
-        std::stable_sort(partial_result.begin(), partial_result.end(),
-                         [](const auto &lhs, const auto &rhs) { return lhs.first && !rhs.first; });
-        for (auto &is_animated_sticker_id_pair : partial_result) {
-          result.push_back(is_animated_sticker_id_pair.second);
-        }
-      }
-    }
-
-    vector<FileId> sorted;
-    sorted.reserve(min(limit_size_t, result.size()));
-    auto recent_stickers_size = recent_sticker_ids_[0].size();
-    const size_t MAX_RECENT_STICKERS = 5;
-    for (size_t i = 0; i < prepend_sticker_ids.size(); i++) {
-      if (sorted.size() == MAX_RECENT_STICKERS && i < recent_stickers_size) {
-        LOG(INFO) << "Skip recent sticker " << prepend_sticker_ids[i];
-        continue;
-      }
-
-      auto sticker_id = prepend_sticker_ids[i];
-      bool is_good = false;
-      auto it = std::find(result.begin(), result.end(), sticker_id);
-      if (it != result.end()) {
-        LOG(INFO) << "Found prepend sticker " << sticker_id << " in installed packs at position "
-                  << (it - result.begin());
-        *it = FileId();
-        is_good = true;
-      } else if (can_find_sticker_by_query(sticker_id, emojis, prepared_query)) {
-        LOG(INFO) << "Found prepend sticker " << sticker_id;
-        is_good = true;
-      }
-
-      if (is_good) {
-        sorted.push_back(sticker_id);
-        if (sorted.size() == limit_size_t) {
-          break;
-        }
-      }
-    }
-    if (sorted.size() != limit_size_t) {
-      vector<FileId> regular_sticker_ids;
-      vector<FileId> premium_sticker_ids;
-      std::tie(regular_sticker_ids, premium_sticker_ids) = split_stickers_by_premium(result);
-      if (td_->option_manager_->get_option_boolean("is_premium") || allow_premium) {
-        auto normal_count = td_->option_manager_->get_option_integer("stickers_normal_by_emoji_per_premium_num", 2);
-        if (normal_count < 0) {
-          normal_count = 2;
-        }
-        if (normal_count > 10) {
-          normal_count = 10;
-        }
-        // premium users have normal_count normal stickers per each premium
-        size_t normal_pos = 0;
-        size_t premium_pos = 0;
-        normal_count++;
-        for (size_t pos = 1; normal_pos < regular_sticker_ids.size() || premium_pos < premium_sticker_ids.size();
-             pos++) {
-          if (pos % normal_count == 0 && premium_pos < premium_sticker_ids.size()) {
-            auto sticker_id = premium_sticker_ids[premium_pos++];
-            LOG(INFO) << "Add premium sticker " << sticker_id << " from installed sticker set";
-            sorted.push_back(sticker_id);
-          } else if (normal_pos < regular_sticker_ids.size()) {
-            auto sticker_id = regular_sticker_ids[normal_pos++];
-            LOG(INFO) << "Add normal sticker " << sticker_id << " from installed sticker set";
-            sorted.push_back(sticker_id);
-          }
-          if (sorted.size() == limit_size_t) {
-            break;
-          }
-        }
-      } else {
-        for (const auto &sticker_id : regular_sticker_ids) {
-          LOG(INFO) << "Add normal sticker " << sticker_id << " from installed sticker set";
-          sorted.push_back(sticker_id);
-          if (sorted.size() == limit_size_t) {
-            break;
-          }
-        }
-        if (sorted.size() < limit_size_t) {
-          auto premium_count = td_->option_manager_->get_option_integer("stickers_premium_by_emoji_num", 0);
-          if (premium_count > 0) {
-            for (const auto &sticker_id : premium_sticker_ids) {
-              LOG(INFO) << "Add premium sticker " << sticker_id << " from installed sticker set";
-              sorted.push_back(sticker_id);
-              if (sorted.size() == limit_size_t || --premium_count == 0) {
-                break;
-              }
-            }
-          }
-        }
-      }
-    }
-
-    result = std::move(sorted);
-  }
-
-  promise.set_value(Unit());
-  return result;
-}
-
-string StickersManager::get_found_stickers_database_key(StickerType sticker_type, const string &emoji) {
-  return PSTRING() << (sticker_type == StickerType::Regular ? "found_stickers" : "found_custom_emoji") << emoji;
-}
-
-void StickersManager::search_stickers(StickerType sticker_type, string emoji, const string &query,
-                                      const vector<string> &input_language_codes, int32 offset, int32 limit,
-                                      Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  if (offset < 0) {
-    return promise.set_error(Status::Error(400, "Parameter offset must be non-negative"));
-  }
-  if (limit == 0) {
-    return promise.set_value(get_stickers_object({}));
-  }
-  if (limit < 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_FOUND_STICKERS) {
-    limit = MAX_FOUND_STICKERS;
-  }
-
-  remove_emoji_modifiers_in_place(emoji, false);
-  if (!query.empty() || offset > 0) {
-    emoji = PSTRING() << emoji << '\xFF' << query << '\xFF' << implode(input_language_codes, ' ') << '\xFF' << offset
-                      << '\xFF' << limit;
-  }
-  if (emoji.empty() || sticker_type == StickerType::Mask) {
-    return promise.set_value(get_stickers_object({}));
-  }
-
-  auto type = static_cast<int32>(sticker_type);
-  auto it = found_stickers_[type].find(emoji);
-  if (it != found_stickers_[type].end()) {
-    const auto &sticker_ids = it->second.sticker_ids_;
-    auto result_size = min(static_cast<size_t>(limit), sticker_ids.size());
-    promise.set_value(get_stickers_object({sticker_ids.begin(), sticker_ids.begin() + result_size}));
-    if (Time::now() < it->second.next_reload_time_) {
-      return;
-    }
-
-    promise = Promise<td_api::object_ptr<td_api::stickers>>();
-    limit = 0;
-  }
-
-  auto &promises = search_stickers_queries_[type][emoji];
-  promises.emplace_back(limit, std::move(promise));
-  if (promises.size() == 1u) {
-    if (it != found_stickers_[type].end()) {
-      return reload_found_stickers(sticker_type, std::move(emoji),
-                                   get_recent_stickers_hash(it->second.sticker_ids_, "search_stickers"));
-    }
-
-    if (G()->use_sqlite_pmc() && offset == 0) {
-      LOG(INFO) << "Trying to load stickers for " << emoji << " from database";
-      G()->td_db()->get_sqlite_pmc()->get(get_found_stickers_database_key(sticker_type, emoji),
-                                          PromiseCreator::lambda([sticker_type, emoji](string value) mutable {
-                                            send_closure(G()->stickers_manager(),
-                                                         &StickersManager::on_load_found_stickers_from_database,
-                                                         sticker_type, std::move(emoji), std::move(value));
-                                          }));
-    } else {
-      return reload_found_stickers(sticker_type, std::move(emoji), 0);
-    }
-  }
-}
-
-void StickersManager::reload_found_stickers(StickerType sticker_type, string &&emoji, int64 hash) {
-  if (emoji.find('\xFF') != string::npos) {
-    auto parameters = full_split(emoji, '\xFF');
-    CHECK(parameters.size() == 5);
-    td_->create_handler<SearchStickersQuery>()->send(std::move(emoji), sticker_type, parameters[0], parameters[1],
-                                                     full_split(parameters[2]), to_integer<int32>(parameters[3]),
-                                                     to_integer<int32>(parameters[4]), hash);
-    return;
-  }
-  switch (sticker_type) {
-    case StickerType::Regular:
-      td_->create_handler<GetStickersQuery>()->send(std::move(emoji), hash);
-      break;
-    case StickerType::CustomEmoji:
-      td_->create_handler<SearchCustomEmojiQuery>()->send(std::move(emoji), hash);
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void StickersManager::on_load_found_stickers_from_database(StickerType sticker_type, string emoji, string value) {
-  if (G()->close_flag()) {
-    on_search_stickers_failed(sticker_type, emoji, Global::request_aborted_error());
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Stickers for " << emoji << " aren't found in database";
-    return reload_found_stickers(sticker_type, std::move(emoji), 0);
-  }
-
-  LOG(INFO) << "Successfully loaded stickers for " << emoji << " from database";
-
-  auto type = static_cast<int32>(sticker_type);
-  auto &found_stickers = found_stickers_[type][emoji];
-  CHECK(found_stickers.next_reload_time_ == 0);
-  auto status = log_event_parse(found_stickers, value);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load stickers for emoji: " << status << ' ' << format::as_hex_dump<4>(Slice(value));
-    found_stickers_[type].erase(emoji);
-    return reload_found_stickers(sticker_type, std::move(emoji), 0);
-  }
-
-  on_search_stickers_finished(sticker_type, emoji, found_stickers);
-}
-
-void StickersManager::on_search_stickers_finished(StickerType sticker_type, const string &emoji,
-                                                  const FoundStickers &found_stickers) {
-  auto type = static_cast<int32>(sticker_type);
-  auto it = search_stickers_queries_[type].find(emoji);
-  CHECK(it != search_stickers_queries_[type].end());
-  CHECK(!it->second.empty());
-  auto queries = std::move(it->second);
-  search_stickers_queries_[type].erase(it);
-
-  const auto &sticker_ids = found_stickers.sticker_ids_;
-  for (auto &query : queries) {
-    auto result_size = min(static_cast<size_t>(query.first), sticker_ids.size());
-    query.second.set_value(get_stickers_object({sticker_ids.begin(), sticker_ids.begin() + result_size}));
-  }
-}
-
-void StickersManager::on_search_stickers_succeeded(StickerType sticker_type, const string &emoji,
-                                                   bool need_save_to_database, vector<FileId> &&sticker_ids) {
-  auto type = static_cast<int32>(sticker_type);
-  auto &found_stickers = found_stickers_[type][emoji];
-  found_stickers.cache_time_ = 300;
-  found_stickers.next_reload_time_ = Time::now() + found_stickers.cache_time_;
-  found_stickers.sticker_ids_ = std::move(sticker_ids);
-
-  if (G()->use_sqlite_pmc() && !G()->close_flag() && need_save_to_database) {
-    LOG(INFO) << "Save " << sticker_type << " stickers for " << emoji << " to database";
-    G()->td_db()->get_sqlite_pmc()->set(get_found_stickers_database_key(sticker_type, emoji),
-                                        log_event_store(found_stickers).as_slice().str(), Auto());
-  }
-
-  return on_search_stickers_finished(sticker_type, emoji, found_stickers);
-}
-
-void StickersManager::on_search_stickers_failed(StickerType sticker_type, const string &emoji, Status &&error) {
-  auto type = static_cast<int32>(sticker_type);
-  auto it = search_stickers_queries_[type].find(emoji);
-  CHECK(it != search_stickers_queries_[type].end());
-  CHECK(!it->second.empty());
-  auto queries = std::move(it->second);
-  search_stickers_queries_[type].erase(it);
-
-  for (auto &query : queries) {
-    query.second.set_error(error.clone());
-  }
-}
-
-void StickersManager::on_find_stickers_by_query_success(
-    StickerType sticker_type, const string &emoji, bool is_first,
-    telegram_api::object_ptr<telegram_api::messages_FoundStickers> &&stickers) {
-  CHECK(stickers != nullptr);
-  auto type = static_cast<int32>(sticker_type);
-  switch (stickers->get_id()) {
-    case telegram_api::messages_foundStickersNotModified::ID: {
-      auto it = found_stickers_[type].find(emoji);
-      if (it == found_stickers_[type].end()) {
-        return on_find_stickers_fail(emoji, Status::Error(500, "Receive messages.foundStickerNotModified"));
-      }
-      auto &found_stickers = it->second;
-      found_stickers.next_reload_time_ = Time::now() + found_stickers.cache_time_;
-      return on_search_stickers_finished(sticker_type, emoji, found_stickers);
-    }
-    case telegram_api::messages_foundStickers::ID: {
-      auto received_stickers = move_tl_object_as<telegram_api::messages_foundStickers>(stickers);
-
-      vector<FileId> sticker_ids;
-      for (auto &sticker : received_stickers->stickers_) {
-        FileId sticker_id =
-            on_get_sticker_document(std::move(sticker), StickerFormat::Unknown, "on_find_stickers_by_query_success")
-                .second;
-        if (sticker_id.is_valid()) {
-          sticker_ids.push_back(sticker_id);
-        }
-      }
-
-      return on_search_stickers_succeeded(sticker_type, emoji, is_first, std::move(sticker_ids));
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void StickersManager::on_find_stickers_by_query_fail(StickerType sticker_type, const string &emoji, Status &&error) {
-  auto type = static_cast<int32>(sticker_type);
-  if (found_stickers_[type].count(emoji) != 0) {
-    found_stickers_[type][emoji].cache_time_ = Random::fast(40, 80);
-    return on_find_stickers_success(emoji, telegram_api::make_object<telegram_api::messages_stickersNotModified>());
-  }
-
-  on_search_stickers_failed(sticker_type, emoji, std::move(error));
-}
-
-void StickersManager::on_find_stickers_success(const string &emoji,
-                                               tl_object_ptr<telegram_api::messages_Stickers> &&stickers) {
-  CHECK(stickers != nullptr);
-  auto sticker_type = StickerType::Regular;
-  auto type = static_cast<int32>(sticker_type);
-  switch (stickers->get_id()) {
-    case telegram_api::messages_stickersNotModified::ID: {
-      auto it = found_stickers_[type].find(emoji);
-      if (it == found_stickers_[type].end()) {
-        return on_find_stickers_fail(emoji, Status::Error(500, "Receive messages.stickerNotModified"));
-      }
-      auto &found_stickers = it->second;
-      found_stickers.next_reload_time_ = Time::now() + found_stickers.cache_time_;
-      return on_search_stickers_finished(sticker_type, emoji, found_stickers);
-    }
-    case telegram_api::messages_stickers::ID: {
-      auto received_stickers = move_tl_object_as<telegram_api::messages_stickers>(stickers);
-
-      vector<FileId> sticker_ids;
-      for (auto &sticker : received_stickers->stickers_) {
-        FileId sticker_id =
-            on_get_sticker_document(std::move(sticker), StickerFormat::Unknown, "on_find_stickers_success").second;
-        if (sticker_id.is_valid()) {
-          sticker_ids.push_back(sticker_id);
-        }
-      }
-
-      return on_search_stickers_succeeded(sticker_type, emoji, true, std::move(sticker_ids));
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void StickersManager::on_find_stickers_fail(const string &emoji, Status &&error) {
-  auto sticker_type = StickerType::Regular;
-  auto type = static_cast<int32>(sticker_type);
-  if (found_stickers_[type].count(emoji) != 0) {
-    found_stickers_[type][emoji].cache_time_ = Random::fast(40, 80);
-    return on_find_stickers_success(emoji, make_tl_object<telegram_api::messages_stickersNotModified>());
-  }
-
-  on_search_stickers_failed(sticker_type, emoji, std::move(error));
-}
-
-void StickersManager::on_find_custom_emojis_success(const string &emoji,
-                                                    tl_object_ptr<telegram_api::EmojiList> &&stickers) {
-  CHECK(stickers != nullptr);
-  auto sticker_type = StickerType::CustomEmoji;
-  auto type = static_cast<int32>(sticker_type);
-  switch (stickers->get_id()) {
-    case telegram_api::emojiListNotModified::ID: {
-      auto it = found_stickers_[type].find(emoji);
-      if (it == found_stickers_[type].end()) {
-        return on_find_custom_emojis_fail(emoji, Status::Error(500, "Receive emojiListNotModified"));
-      }
-      auto &found_stickers = it->second;
-      found_stickers.next_reload_time_ = Time::now() + found_stickers.cache_time_;
-      return on_search_stickers_finished(sticker_type, emoji, found_stickers);
-    }
-    case telegram_api::emojiList::ID: {
-      auto emoji_list = move_tl_object_as<telegram_api::emojiList>(stickers);
-
-      auto custom_emoji_ids = CustomEmojiId::get_custom_emoji_ids(emoji_list->document_id_);
-      get_custom_emoji_stickers_unlimited(
-          custom_emoji_ids,
-          PromiseCreator::lambda([actor_id = actor_id(this), emoji, hash = emoji_list->hash_,
-                                  custom_emoji_ids](Result<td_api::object_ptr<td_api::stickers>> &&result) {
-            send_closure(actor_id, &StickersManager::on_load_custom_emojis, std::move(emoji), hash, custom_emoji_ids,
-                         std::move(result));
-          }));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-void StickersManager::on_load_custom_emojis(string emoji, int64 hash, vector<CustomEmojiId> custom_emoji_ids,
-                                            Result<td_api::object_ptr<td_api::stickers>> &&result) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error()) {
-    return on_find_custom_emojis_fail(emoji, result.move_as_error());
-  }
-
-  vector<FileId> sticker_ids;
-  for (auto custom_emoji_id : custom_emoji_ids) {
-    auto sticker_id = custom_emoji_to_sticker_id_.get(custom_emoji_id);
-    if (sticker_id.is_valid()) {
-      sticker_ids.push_back(sticker_id);
-    }
-  }
-
-  on_search_stickers_succeeded(StickerType::CustomEmoji, emoji, true, std::move(sticker_ids));
-}
-
-void StickersManager::on_find_custom_emojis_fail(const string &emoji, Status &&error) {
-  auto sticker_type = StickerType::CustomEmoji;
-  auto type = static_cast<int32>(StickerType::CustomEmoji);
-  if (found_stickers_[type].count(emoji) != 0) {
-    found_stickers_[type][emoji].cache_time_ = Random::fast(40, 80);
-    return on_find_custom_emojis_success(emoji, make_tl_object<telegram_api::emojiListNotModified>());
-  }
-
-  on_search_stickers_failed(sticker_type, emoji, std::move(error));
-}
-
-void StickersManager::get_premium_stickers(int32 limit, Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (limit == 0) {
-    return promise.set_value(get_stickers_object({}));
-  }
-  if (limit > MAX_FOUND_STICKERS) {
-    limit = MAX_FOUND_STICKERS;
-  }
-
-  MultiPromiseActorSafe mpas{"GetPremiumStickersMultiPromiseActor"};
-  mpas.add_promise(PromiseCreator::lambda(
-      [actor_id = actor_id(this), limit, promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &StickersManager::do_get_premium_stickers, limit, std::move(promise));
-        }
-      }));
-
-  auto lock = mpas.get_promise();
-  search_stickers(StickerType::Regular, "📂⭐️", string(), vector<string>(), 0, limit,
-                  PromiseCreator::lambda(
-                      [promise = mpas.get_promise()](Result<td_api::object_ptr<td_api::stickers>> result) mutable {
-                        if (result.is_error()) {
-                          promise.set_error(result.move_as_error());
-                        } else {
-                          promise.set_value(Unit());
-                        }
-                      }));
-  get_stickers(StickerType::Regular, string(), 1, DialogId(), false, mpas.get_promise());
-  lock.set_value(Unit());
-}
-
-void StickersManager::do_get_premium_stickers(int32 limit, Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  auto type = static_cast<int32>(StickerType::Regular);
-  CHECK(are_installed_sticker_sets_loaded_[type]);
-
-  vector<FileId> sticker_ids;
-  auto limit_size_t = static_cast<size_t>(limit);
-  for (const auto &sticker_set_id : installed_sticker_set_ids_[type]) {
-    const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-      continue;
-    }
-
-    for (auto premium_sticker_position : sticker_set->premium_sticker_positions_) {
-      sticker_ids.push_back(sticker_set->sticker_ids_[premium_sticker_position]);
-      if (sticker_ids.size() == limit_size_t) {
-        return promise.set_value(get_stickers_object(sticker_ids));
-      }
-    }
-  }
-
-  auto it = found_stickers_[type].find(remove_emoji_modifiers("📂⭐️", false));
-  CHECK(it != found_stickers_[type].end());
-  for (auto sticker_id : it->second.sticker_ids_) {
-    if (td::contains(sticker_ids, sticker_id)) {
-      continue;
-    }
-    sticker_ids.push_back(sticker_id);
-    if (sticker_ids.size() == limit_size_t) {
-      break;
-    }
-  }
-  promise.set_value(get_stickers_object(sticker_ids));
-}
-
-vector<StickerSetId> StickersManager::get_installed_sticker_sets(StickerType sticker_type, Promise<Unit> &&promise) {
-  auto type = static_cast<int32>(sticker_type);
-  if (!are_installed_sticker_sets_loaded_[type]) {
-    load_installed_sticker_sets(sticker_type, std::move(promise));
-    return {};
-  }
-  reload_installed_sticker_sets(sticker_type, false);
-
-  promise.set_value(Unit());
-  return installed_sticker_set_ids_[type];
-}
-
-bool StickersManager::update_sticker_set_cache(const StickerSet *sticker_set, Promise<Unit> &promise) {
-  CHECK(sticker_set != nullptr);
-  auto set_id = sticker_set->id_;
-  if (!sticker_set->is_loaded_) {
-    if (!sticker_set->was_loaded_ || td_->auth_manager_->is_bot()) {
-      load_sticker_sets({set_id}, std::move(promise));
-      return true;
-    } else {
-      load_sticker_sets({set_id}, Auto());
-    }
-  } else if (sticker_set->is_installed_) {
-    reload_installed_sticker_sets(sticker_set->sticker_type_, false);
-  } else {
-    if (G()->unix_time() >= sticker_set->expires_at_) {
-      if (td_->auth_manager_->is_bot()) {
-        do_reload_sticker_set(set_id, get_input_sticker_set(sticker_set), sticker_set->hash_, std::move(promise),
-                              "update_sticker_set_cache");
-        return true;
-      } else {
-        do_reload_sticker_set(set_id, get_input_sticker_set(sticker_set), sticker_set->hash_, Auto(),
-                              "update_sticker_set_cache");
-      }
-    }
-  }
-
-  return false;
-}
-
-StickerSetId StickersManager::get_sticker_set(StickerSetId set_id, Promise<Unit> &&promise) {
-  const StickerSet *sticker_set = get_sticker_set(set_id);
-  if (sticker_set == nullptr) {
-    if (set_id.get() == GREAT_MINDS_SET_ID) {
-      do_reload_sticker_set(set_id, make_tl_object<telegram_api::inputStickerSetID>(set_id.get(), 0), 0,
-                            std::move(promise), "get_sticker_set");
-      return StickerSetId();
-    }
-
-    promise.set_error(Status::Error(400, "Sticker set not found"));
-    return StickerSetId();
-  }
-
-  if (update_sticker_set_cache(sticker_set, promise)) {
-    return StickerSetId();
-  }
-
-  promise.set_value(Unit());
-  return set_id;
-}
-
-void StickersManager::get_sticker_set_name(StickerSetId set_id, Promise<string> &&promise) {
-  constexpr int64 GREAT_MINDS_COLOR_SET_ID = 151353307481243663;
-  if (set_id.get() == GREAT_MINDS_SET_ID || set_id.get() == GREAT_MINDS_COLOR_SET_ID) {
-    return promise.set_value("TelegramGreatMinds");
-  }
-
-  const StickerSet *sticker_set = get_sticker_set(set_id);
-  if (sticker_set == nullptr) {
-    return promise.set_error(Status::Error(400, "Sticker set not found"));
-  }
-  if (!sticker_set->short_name_.empty()) {
-    return promise.set_value(string(sticker_set->short_name_));
-  }
-  auto &queries = sticker_set_name_load_queries_[set_id];
-  queries.push_back(std::move(promise));
-  if (queries.size() == 1u) {
-    td_->create_handler<GetStickerSetNameQuery>()->send(set_id, get_input_sticker_set(sticker_set));
-  }
-}
-
-StickerSetId StickersManager::search_sticker_set(const string &short_name_to_search, bool ignore_cache,
-                                                 Promise<Unit> &&promise) {
-  string short_name = clean_username(short_name_to_search);
-  const StickerSet *sticker_set = get_sticker_set(short_name_to_sticker_set_id_.get(short_name));
-
-  if (sticker_set == nullptr || ignore_cache) {
-    auto set_to_load = make_tl_object<telegram_api::inputStickerSetShortName>(short_name);
-    do_reload_sticker_set(StickerSetId(), std::move(set_to_load), 0, std::move(promise), "search_sticker_set");
-    return StickerSetId();
-  }
-
-  if (update_sticker_set_cache(sticker_set, promise)) {
-    return StickerSetId();
-  }
-
-  promise.set_value(Unit());
-  return sticker_set->id_;
-}
-
-std::pair<int32, vector<StickerSetId>> StickersManager::search_installed_sticker_sets(StickerType sticker_type,
-                                                                                      const string &query, int32 limit,
-                                                                                      Promise<Unit> &&promise) {
-  LOG(INFO) << "Search installed " << sticker_type << " sticker sets with query = \"" << query
-            << "\" and limit = " << limit;
-
-  if (limit < 0) {
-    promise.set_error(Status::Error(400, "Limit must be non-negative"));
-    return {};
-  }
-
-  auto type = static_cast<int32>(sticker_type);
-  if (!are_installed_sticker_sets_loaded_[type]) {
-    load_installed_sticker_sets(sticker_type, std::move(promise));
-    return {};
-  }
-  reload_installed_sticker_sets(sticker_type, false);
-
-  std::pair<size_t, vector<int64>> result = installed_sticker_sets_hints_[type].search(query, limit);
-  promise.set_value(Unit());
-  return {narrow_cast<int32>(result.first), convert_sticker_set_ids(result.second)};
-}
-
-vector<StickerSetId> StickersManager::search_sticker_sets(StickerType sticker_type, const string &query,
-                                                          Promise<Unit> &&promise) {
-  if (sticker_type == StickerType::Mask) {
-    promise.set_value(Unit());
-    return {};
-  }
-  auto type = static_cast<int32>(sticker_type);
-
-  auto q = clean_name(query, 1000);
-  auto it = found_sticker_sets_[type].find(q);
-  if (it != found_sticker_sets_[type].end()) {
-    promise.set_value(Unit());
-    auto result = it->second;
-    td::remove_if(result, [&](StickerSetId sticker_set_id) {
-      const auto *sticker_set = get_sticker_set(sticker_set_id);
-      CHECK(sticker_set != nullptr);
-      return sticker_set->is_inited_ && sticker_set->is_installed_;
-    });
-    return result;
-  }
-
-  auto &promises = search_sticker_sets_queries_[type][q];
-  promises.push_back(std::move(promise));
-  if (promises.size() == 1u) {
-    td_->create_handler<SearchStickerSetsQuery>()->send(sticker_type, std::move(q));
-  }
-
-  return {};
-}
-
-void StickersManager::on_find_sticker_sets_success(
-    StickerType sticker_type, const string &query,
-    tl_object_ptr<telegram_api::messages_FoundStickerSets> &&sticker_sets) {
-  auto type = static_cast<int32>(sticker_type);
-  CHECK(sticker_sets != nullptr);
-  switch (sticker_sets->get_id()) {
-    case telegram_api::messages_foundStickerSetsNotModified::ID:
-      return on_find_sticker_sets_fail(sticker_type, query,
-                                       Status::Error(500, "Receive messages.foundStickerSetsNotModified"));
-    case telegram_api::messages_foundStickerSets::ID: {
-      auto found_stickers_sets = move_tl_object_as<telegram_api::messages_foundStickerSets>(sticker_sets);
-      vector<StickerSetId> &sticker_set_ids = found_sticker_sets_[type][query];
-      CHECK(sticker_set_ids.empty());
-
-      for (auto &sticker_set : found_stickers_sets->sets_) {
-        StickerSetId set_id = on_get_sticker_set_covered(std::move(sticker_set), true, "on_find_sticker_sets_success");
-        if (!set_id.is_valid()) {
-          continue;
-        }
-        auto *s = get_sticker_set(set_id);
-        CHECK(s != nullptr);
-        if (s->sticker_type_ != sticker_type) {
-          LOG(ERROR) << "Receive " << set_id << " of type " << s->sticker_type_ << " while searching for "
-                     << sticker_type << " sticker sets with query " << query;
-          continue;
-        }
-
-        update_sticker_set(s, "on_find_sticker_sets_success");
-        sticker_set_ids.push_back(set_id);
-      }
-
-      send_update_installed_sticker_sets();
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  auto it = search_sticker_sets_queries_[type].find(query);
-  CHECK(it != search_sticker_sets_queries_[type].end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  search_sticker_sets_queries_[type].erase(it);
-
-  set_promises(promises);
-}
-
-void StickersManager::on_find_sticker_sets_fail(StickerType sticker_type, const string &query, Status &&error) {
-  auto type = static_cast<int32>(sticker_type);
-  CHECK(found_sticker_sets_[type].count(query) == 0);
-
-  auto it = search_sticker_sets_queries_[type].find(query);
-  CHECK(it != search_sticker_sets_queries_[type].end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  search_sticker_sets_queries_[type].erase(it);
-
-  fail_promises(promises, std::move(error));
-}
-
-void StickersManager::change_sticker_set(StickerSetId set_id, bool is_installed, bool is_archived,
-                                         Promise<Unit> &&promise) {
-  if (is_installed && is_archived) {
-    return promise.set_error(Status::Error(400, "Sticker set can't be installed and archived simultaneously"));
-  }
-  const StickerSet *sticker_set = get_sticker_set(set_id);
-  if (sticker_set == nullptr) {
-    return promise.set_error(Status::Error(400, "Sticker set not found"));
-  }
-  if (!sticker_set->is_inited_) {
-    load_sticker_sets({set_id}, std::move(promise));
-    return;
-  }
-  auto type = static_cast<int32>(sticker_set->sticker_type_);
-  if (!are_installed_sticker_sets_loaded_[type]) {
-    load_installed_sticker_sets(sticker_set->sticker_type_, std::move(promise));
-    return;
-  }
-
-  if (is_archived) {
-    is_installed = true;
-  }
-  if (is_installed) {
-    if (sticker_set->is_installed_ && is_archived == sticker_set->is_archived_) {
-      return promise.set_value(Unit());
-    }
-
-    td_->create_handler<InstallStickerSetQuery>(std::move(promise))
-        ->send(set_id, get_input_sticker_set(sticker_set), is_archived);
-    return;
-  }
-
-  if (!sticker_set->is_installed_) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<UninstallStickerSetQuery>(std::move(promise))->send(set_id, get_input_sticker_set(sticker_set));
-}
-
-void StickersManager::on_update_sticker_set(StickerSet *sticker_set, bool is_installed, bool is_archived,
-                                            bool is_changed, bool from_database) {
-  LOG(INFO) << "Update " << sticker_set->id_ << ": installed = " << is_installed << ", archived = " << is_archived
-            << ", changed = " << is_changed << ", from_database = " << from_database;
-  CHECK(sticker_set->is_inited_);
-  if (is_archived) {
-    is_installed = true;
-  }
-  if (sticker_set->is_installed_ == is_installed && sticker_set->is_archived_ == is_archived) {
-    return;
-  }
-
-  bool was_added = sticker_set->is_installed_ && !sticker_set->is_archived_;
-  bool was_archived = sticker_set->is_archived_;
-  sticker_set->is_installed_ = is_installed;
-  sticker_set->is_archived_ = is_archived;
-  if (!from_database) {
-    sticker_set->is_changed_ = true;
-  }
-
-  bool is_added = sticker_set->is_installed_ && !sticker_set->is_archived_;
-  auto type = static_cast<int32>(sticker_set->sticker_type_);
-  if (was_added != is_added) {
-    vector<StickerSetId> &sticker_set_ids = installed_sticker_set_ids_[type];
-    need_update_installed_sticker_sets_[type] = true;
-
-    if (is_added) {
-      installed_sticker_sets_hints_[type].add(sticker_set->id_.get(),
-                                              PSLICE() << sticker_set->title_ << ' ' << sticker_set->short_name_);
-      sticker_set_ids.insert(sticker_set_ids.begin(), sticker_set->id_);
-    } else {
-      installed_sticker_sets_hints_[type].remove(sticker_set->id_.get());
-      td::remove(sticker_set_ids, sticker_set->id_);
-    }
-  }
-  if (was_archived != is_archived && is_changed) {
-    int32 &total_count = total_archived_sticker_set_count_[type];
-    vector<StickerSetId> &sticker_set_ids = archived_sticker_set_ids_[type];
-    if (total_count < 0) {
-      return;
-    }
-
-    if (is_archived) {
-      if (!td::contains(sticker_set_ids, sticker_set->id_)) {
-        total_count++;
-        sticker_set_ids.insert(sticker_set_ids.begin(), sticker_set->id_);
-      }
-    } else {
-      total_count--;
-      if (total_count < 0) {
-        LOG(ERROR) << "Total count of archived sticker sets became negative";
-        total_count = 0;
-      }
-      td::remove(sticker_set_ids, sticker_set->id_);
-    }
-  }
-}
-
-void StickersManager::load_installed_sticker_sets(StickerType sticker_type, Promise<Unit> &&promise) {
-  auto type = static_cast<int32>(sticker_type);
-  if (td_->auth_manager_->is_bot()) {
-    are_installed_sticker_sets_loaded_[type] = true;
-  }
-  if (are_installed_sticker_sets_loaded_[type]) {
-    promise.set_value(Unit());
-    return;
-  }
-  load_installed_sticker_sets_queries_[type].push_back(std::move(promise));
-  if (load_installed_sticker_sets_queries_[type].size() == 1u) {
-    if (G()->use_sqlite_pmc()) {
-      LOG(INFO) << "Trying to load installed " << sticker_type << " sticker sets from database";
-      G()->td_db()->get_sqlite_pmc()->get(
-          PSTRING() << "sss" << type, PromiseCreator::lambda([sticker_type](string value) {
-            send_closure(G()->stickers_manager(), &StickersManager::on_load_installed_sticker_sets_from_database,
-                         sticker_type, std::move(value));
-          }));
-    } else {
-      LOG(INFO) << "Trying to load installed " << sticker_type << " sticker sets from server";
-      reload_installed_sticker_sets(sticker_type, true);
-    }
-  }
-}
-
-void StickersManager::on_load_installed_sticker_sets_from_database(StickerType sticker_type, string value) {
-  if (G()->close_flag()) {
-    on_get_installed_sticker_sets_failed(sticker_type, Global::request_aborted_error());
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Installed " << sticker_type << " sticker sets aren't found in database";
-    reload_installed_sticker_sets(sticker_type, true);
-    return;
-  }
-
-  LOG(INFO) << "Successfully loaded installed " << sticker_type << " sticker set list of size " << value.size()
-            << " from database";
-
-  StickerSetListLogEvent log_event;
-  auto status = log_event_parse(log_event, value);
-  if (status.is_error()) {
-    // can't happen unless database is broken
-    LOG(ERROR) << "Can't load installed sticker set list: " << status << ' ' << format::as_hex_dump<4>(Slice(value));
-    return reload_installed_sticker_sets(sticker_type, true);
-  }
-  CHECK(!log_event.is_premium_);
-
-  vector<StickerSetId> sets_to_load;
-  for (auto sticker_set_id : log_event.sticker_set_ids_) {
-    StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    CHECK(sticker_set != nullptr);
-    if (!sticker_set->is_inited_) {
-      sets_to_load.push_back(sticker_set_id);
-    }
-  }
-  std::reverse(sets_to_load.begin(), sets_to_load.end());  // load installed sticker sets in reverse order
-
-  load_sticker_sets_without_stickers(
-      std::move(sets_to_load),
-      PromiseCreator::lambda([sticker_type,
-                              sticker_set_ids = std::move(log_event.sticker_set_ids_)](Result<Unit> result) mutable {
-        if (result.is_ok()) {
-          send_closure(G()->stickers_manager(), &StickersManager::on_load_installed_sticker_sets_finished, sticker_type,
-                       std::move(sticker_set_ids), true);
-        } else {
-          send_closure(G()->stickers_manager(), &StickersManager::reload_installed_sticker_sets, sticker_type, true);
-        }
-      }));
-}
-
-void StickersManager::on_load_installed_sticker_sets_finished(StickerType sticker_type,
-                                                              vector<StickerSetId> &&installed_sticker_set_ids,
-                                                              bool from_database) {
-  bool need_reload = false;
-  vector<StickerSetId> old_installed_sticker_set_ids;
-  auto type = static_cast<int32>(sticker_type);
-  if (!are_installed_sticker_sets_loaded_[type] && !installed_sticker_set_ids_[type].empty()) {
-    old_installed_sticker_set_ids = std::move(installed_sticker_set_ids_[type]);
-  }
-  installed_sticker_set_ids_[type].clear();
-  for (auto set_id : installed_sticker_set_ids) {
-    CHECK(set_id.is_valid());
-
-    auto sticker_set = get_sticker_set(set_id);
-    CHECK(sticker_set != nullptr);
-    CHECK(sticker_set->is_inited_);
-    if (sticker_set->is_installed_ && !sticker_set->is_archived_ && sticker_set->sticker_type_ == sticker_type) {
-      installed_sticker_set_ids_[type].push_back(set_id);
-    } else {
-      need_reload = true;
-    }
-  }
-  if (need_reload) {
-    LOG(ERROR) << "Reload installed " << sticker_type << " sticker sets, because only "
-               << installed_sticker_set_ids_[type].size() << " of " << installed_sticker_set_ids.size()
-               << " are really installed after loading from " << (from_database ? "database" : "server");
-    reload_installed_sticker_sets(sticker_type, true);
-  } else if (!old_installed_sticker_set_ids.empty() &&
-             old_installed_sticker_set_ids != installed_sticker_set_ids_[type]) {
-    LOG(ERROR) << "Reload installed " << sticker_type << " sticker sets, because they has changed from "
-               << old_installed_sticker_set_ids << " to " << installed_sticker_set_ids_[type] << " after loading from "
-               << (from_database ? "database" : "server");
-    reload_installed_sticker_sets(sticker_type, true);
-  }
-
-  are_installed_sticker_sets_loaded_[type] = true;
-  need_update_installed_sticker_sets_[type] = true;
-  send_update_installed_sticker_sets(from_database);
-  set_promises(load_installed_sticker_sets_queries_[type]);
-}
-
-string StickersManager::get_sticker_set_database_key(StickerSetId set_id) {
-  return PSTRING() << "ss" << set_id.get();
-}
-
-string StickersManager::get_full_sticker_set_database_key(StickerSetId set_id) {
-  return PSTRING() << "ssf" << set_id.get();
-}
-
-string StickersManager::get_sticker_set_database_value(const StickerSet *s, bool with_stickers, const char *source) {
-  LogEventStorerCalcLength storer_calc_length;
-  store_sticker_set(s, with_stickers, storer_calc_length, source);
-
-  BufferSlice value_buffer{storer_calc_length.get_length()};
-  auto value = value_buffer.as_mutable_slice();
-
-  LOG(DEBUG) << "Serialized size of " << s->id_ << " is " << value.size();
-
-  LogEventStorerUnsafe storer_unsafe(value.ubegin());
-  store_sticker_set(s, with_stickers, storer_unsafe, source);
-
-  return value.str();
-}
-
-void StickersManager::update_sticker_set(StickerSet *sticker_set, const char *source) {
-  CHECK(sticker_set != nullptr);
-  if (sticker_set->is_changed_ || sticker_set->need_save_to_database_) {
-    if (G()->use_sqlite_pmc() && !G()->close_flag()) {
-      LOG(INFO) << "Save " << sticker_set->id_ << " to database from " << source;
-      if (sticker_set->is_inited_) {
-        G()->td_db()->get_sqlite_pmc()->set(get_sticker_set_database_key(sticker_set->id_),
-                                            get_sticker_set_database_value(sticker_set, false, source), Auto());
-      }
-      if (sticker_set->was_loaded_) {
-        G()->td_db()->get_sqlite_pmc()->set(get_full_sticker_set_database_key(sticker_set->id_),
-                                            get_sticker_set_database_value(sticker_set, true, source), Auto());
-      }
-    }
-    if (sticker_set->is_changed_ && sticker_set->was_loaded_ && sticker_set->was_update_sent_) {
-      send_closure(G()->td(), &Td::send_update,
-                   td_api::make_object<td_api::updateStickerSet>(get_sticker_set_object(sticker_set->id_)));
-    }
-    sticker_set->is_changed_ = false;
-    sticker_set->need_save_to_database_ = false;
-    if (sticker_set->is_inited_) {
-      update_load_requests(sticker_set, false, Status::OK());
-    }
-  }
-}
-
-void StickersManager::load_sticker_sets(vector<StickerSetId> &&sticker_set_ids, Promise<Unit> &&promise) {
-  if (sticker_set_ids.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  CHECK(current_sticker_set_load_request_ < std::numeric_limits<uint32>::max());
-  auto load_request_id = ++current_sticker_set_load_request_;
-  StickerSetLoadRequest &load_request = sticker_set_load_requests_[load_request_id];
-  load_request.promise_ = std::move(promise);
-  load_request.left_queries_ = sticker_set_ids.size();
-
-  for (auto sticker_set_id : sticker_set_ids) {
-    StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    CHECK(sticker_set != nullptr);
-    CHECK(!sticker_set->is_loaded_);
-
-    sticker_set->load_requests_.push_back(load_request_id);
-    if (sticker_set->load_requests_.size() == 1u) {
-      if (G()->use_sqlite_pmc() && !sticker_set->was_loaded_) {
-        LOG(INFO) << "Trying to load " << sticker_set_id << " with stickers from database";
-        G()->td_db()->get_sqlite_pmc()->get(
-            get_full_sticker_set_database_key(sticker_set_id), PromiseCreator::lambda([sticker_set_id](string value) {
-              send_closure(G()->stickers_manager(), &StickersManager::on_load_sticker_set_from_database, sticker_set_id,
-                           true, std::move(value));
-            }));
-      } else {
-        LOG(INFO) << "Trying to load " << sticker_set_id << " with stickers from server";
-        do_reload_sticker_set(sticker_set_id, get_input_sticker_set(sticker_set), 0, Auto(), "load_sticker_sets");
-      }
-    }
-  }
-}
-
-void StickersManager::load_sticker_sets_without_stickers(vector<StickerSetId> &&sticker_set_ids,
-                                                         Promise<Unit> &&promise) {
-  if (sticker_set_ids.empty()) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  CHECK(current_sticker_set_load_request_ < std::numeric_limits<uint32>::max());
-  auto load_request_id = ++current_sticker_set_load_request_;
-  StickerSetLoadRequest &load_request = sticker_set_load_requests_[load_request_id];
-  load_request.promise_ = std::move(promise);
-  load_request.left_queries_ = sticker_set_ids.size();
-
-  for (auto sticker_set_id : sticker_set_ids) {
-    StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    CHECK(sticker_set != nullptr);
-    CHECK(!sticker_set->is_inited_);
-
-    if (!sticker_set->load_requests_.empty()) {
-      sticker_set->load_requests_.push_back(load_request_id);
-    } else {
-      sticker_set->load_without_stickers_requests_.push_back(load_request_id);
-      if (sticker_set->load_without_stickers_requests_.size() == 1u) {
-        if (G()->use_sqlite_pmc()) {
-          LOG(INFO) << "Trying to load " << sticker_set_id << " from database";
-          G()->td_db()->get_sqlite_pmc()->get(
-              get_sticker_set_database_key(sticker_set_id), PromiseCreator::lambda([sticker_set_id](string value) {
-                send_closure(G()->stickers_manager(), &StickersManager::on_load_sticker_set_from_database,
-                             sticker_set_id, false, std::move(value));
-              }));
-        } else {
-          LOG(INFO) << "Trying to load " << sticker_set_id << " from server";
-          do_reload_sticker_set(sticker_set_id, get_input_sticker_set(sticker_set), 0, Auto(),
-                                "load_sticker_sets_without_stickers");
-        }
-      }
-    }
-  }
-}
-
-void StickersManager::on_load_sticker_set_from_database(StickerSetId sticker_set_id, bool with_stickers, string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-  StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-  CHECK(sticker_set != nullptr);
-  if (sticker_set->was_loaded_) {
-    LOG(INFO) << "Receive from database previously loaded " << sticker_set_id;
-    return;
-  }
-  if (!with_stickers && sticker_set->is_inited_) {
-    LOG(INFO) << "Receive from database previously inited " << sticker_set_id;
-    return;
-  }
-
-  // it is possible that a server reload_sticker_set request has failed and cleared requests list with an error
-  if (with_stickers) {
-    // CHECK(!sticker_set->load_requests_.empty());
-  } else {
-    // CHECK(!sticker_set->load_without_stickers_requests_.empty());
-  }
-
-  if (value.empty()) {
-    LOG(INFO) << "Failed to find in the database " << sticker_set_id;
-    return do_reload_sticker_set(sticker_set_id, get_input_sticker_set(sticker_set), 0, Auto(),
-                                 "on_load_sticker_set_from_database");
-  }
-
-  LOG(INFO) << "Successfully loaded " << sticker_set_id << " with" << (with_stickers ? "" : "out")
-            << " stickers of size " << value.size() << " from database";
-
-  auto was_inited = sticker_set->is_inited_;
-  auto old_sticker_count = sticker_set->sticker_ids_.size();
-
-  {
-    LOG_IF(ERROR, sticker_set->is_changed_) << sticker_set_id << " with" << (with_stickers ? "" : "out")
-                                            << " stickers was changed before it is loaded from database";
-    LogEventParser parser(value);
-    parse_sticker_set(sticker_set, parser);
-    parser.fetch_end();
-    if (sticker_set->is_changed_) {
-      LOG(INFO) << sticker_set_id << " with" << (with_stickers ? "" : "out") << " stickers is changed";
-    }
-    auto status = parser.get_status();
-    if (status.is_error()) {
-      G()->td_db()->get_sqlite_sync_pmc()->erase(with_stickers ? get_full_sticker_set_database_key(sticker_set_id)
-                                                               : get_sticker_set_database_key(sticker_set_id));
-      // need to crash, because the current StickerSet state is spoiled by parse_sticker_set
-      LOG(FATAL) << "Failed to parse " << sticker_set_id << ": " << status << ' '
-                 << format::as_hex_dump<4>(Slice(value));
-    }
-  }
-  if (!sticker_set->is_created_loaded_ || !sticker_set->is_sticker_channel_emoji_status_loaded_ ||
-      !sticker_set->is_sticker_has_text_color_loaded_ || !sticker_set->are_keywords_loaded_ ||
-      !sticker_set->is_thumbnail_reloaded_ || !sticker_set->are_legacy_sticker_thumbnails_reloaded_) {
-    do_reload_sticker_set(sticker_set_id, get_input_sticker_set(sticker_set), 0, Auto(),
-                          "on_load_sticker_set_from_database 2");
-  }
-
-  if (with_stickers && was_inited && old_sticker_count < get_max_featured_sticker_count(sticker_set->sticker_type_) &&
-      old_sticker_count < sticker_set->sticker_ids_.size()) {
-    sticker_set->need_save_to_database_ = true;
-  }
-
-  update_sticker_set(sticker_set, "on_load_sticker_set_from_database");
-
-  update_load_requests(sticker_set, with_stickers, Status::OK());
-}
-
-void StickersManager::reload_sticker_set(StickerSetId sticker_set_id, int64 access_hash, Promise<Unit> &&promise) {
-  do_reload_sticker_set(sticker_set_id,
-                        make_tl_object<telegram_api::inputStickerSetID>(sticker_set_id.get(), access_hash), 0,
-                        std::move(promise), "reload_sticker_set");
-}
-
-void StickersManager::do_reload_sticker_set(StickerSetId sticker_set_id,
-                                            tl_object_ptr<telegram_api::InputStickerSet> &&input_sticker_set,
-                                            int32 hash, Promise<Unit> &&promise, const char *source) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(input_sticker_set != nullptr);
-  LOG(INFO) << "Reload " << sticker_set_id << " from " << source;
-  if (sticker_set_id.is_valid() && input_sticker_set->get_id() == telegram_api::inputStickerSetID::ID) {
-    auto &queries = sticker_set_reload_queries_[sticker_set_id];
-    if (queries == nullptr) {
-      queries = make_unique<StickerSetReloadQueries>();
-    }
-    if (!queries->sent_promises_.empty()) {
-      // query has already been sent, just wait for the result
-      if (queries->sent_hash_ == 0 || hash == queries->sent_hash_) {
-        LOG(INFO) << "Wait for result of the sent reload query";
-        queries->sent_promises_.push_back(std::move(promise));
-      } else {
-        LOG(INFO) << "Postpone reload of " << sticker_set_id << ", because another query was sent";
-        if (queries->pending_promises_.empty()) {
-          queries->pending_hash_ = hash;
-        } else if (queries->pending_hash_ != hash) {
-          queries->pending_hash_ = 0;
-        }
-        queries->pending_promises_.push_back(std::move(promise));
-      }
-      return;
-    }
-
-    CHECK(queries->pending_promises_.empty());
-    queries->sent_promises_.push_back(std::move(promise));
-    queries->sent_hash_ = hash;
-    promise = PromiseCreator::lambda([actor_id = actor_id(this), sticker_set_id](Result<Unit> result) mutable {
-      send_closure(actor_id, &StickersManager::on_reload_sticker_set, sticker_set_id, std::move(result));
-    });
-  }
-  td_->create_handler<GetStickerSetQuery>(std::move(promise))->send(sticker_set_id, std::move(input_sticker_set), hash);
-}
-
-void StickersManager::on_reload_sticker_set(StickerSetId sticker_set_id, Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-  LOG(INFO) << "Reloaded " << sticker_set_id;
-  auto it = sticker_set_reload_queries_.find(sticker_set_id);
-  CHECK(it != sticker_set_reload_queries_.end());
-  auto queries = std::move(it->second);
-  sticker_set_reload_queries_.erase(it);
-  CHECK(queries != nullptr);
-  CHECK(!queries->sent_promises_.empty());
-  if (result.is_error()) {
-    fail_promises(queries->sent_promises_, result.error().clone());
-    fail_promises(queries->pending_promises_, result.move_as_error());
-    return;
-  }
-  set_promises(queries->sent_promises_);
-  if (!queries->pending_promises_.empty()) {
-    auto sticker_set = get_sticker_set(sticker_set_id);
-    auto access_hash = sticker_set == nullptr ? 0 : sticker_set->access_hash_;
-    auto promises = std::move(queries->pending_promises_);
-    for (auto &promise : promises) {
-      do_reload_sticker_set(sticker_set_id,
-                            make_tl_object<telegram_api::inputStickerSetID>(sticker_set_id.get(), access_hash),
-                            queries->pending_hash_, std::move(promise), "on_reload_sticker_set");
-    }
-  }
-}
-
-void StickersManager::on_install_sticker_set(StickerSetId set_id, bool is_archived,
-                                             tl_object_ptr<telegram_api::messages_StickerSetInstallResult> &&result) {
-  StickerSet *sticker_set = get_sticker_set(set_id);
-  CHECK(sticker_set != nullptr);
-  on_update_sticker_set(sticker_set, true, is_archived, true);
-  update_sticker_set(sticker_set, "on_install_sticker_set");
-
-  switch (result->get_id()) {
-    case telegram_api::messages_stickerSetInstallResultSuccess::ID:
-      break;
-    case telegram_api::messages_stickerSetInstallResultArchive::ID: {
-      auto archived_sets = move_tl_object_as<telegram_api::messages_stickerSetInstallResultArchive>(result);
-      for (auto &archived_set_ptr : archived_sets->sets_) {
-        StickerSetId archived_sticker_set_id =
-            on_get_sticker_set_covered(std::move(archived_set_ptr), true, "on_install_sticker_set");
-        if (archived_sticker_set_id.is_valid()) {
-          auto archived_sticker_set = get_sticker_set(archived_sticker_set_id);
-          CHECK(archived_sticker_set != nullptr);
-          update_sticker_set(archived_sticker_set, "on_install_sticker_set 2");
-        }
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  send_update_installed_sticker_sets();
-}
-
-void StickersManager::on_uninstall_sticker_set(StickerSetId set_id) {
-  StickerSet *sticker_set = get_sticker_set(set_id);
-  CHECK(sticker_set != nullptr);
-  on_update_sticker_set(sticker_set, false, false, true);
-  update_sticker_set(sticker_set, "on_uninstall_sticker_set");
-  send_update_installed_sticker_sets();
-}
-
-td_api::object_ptr<td_api::updateDiceEmojis> StickersManager::get_update_dice_emojis_object() const {
-  return td_api::make_object<td_api::updateDiceEmojis>(vector<string>(dice_emojis_));
-}
-
-void StickersManager::on_update_dice_emojis() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    td_->option_manager_->set_option_empty("dice_emojis");
-    return;
-  }
-  if (!is_inited_) {
-    return;
-  }
-
-  auto dice_emojis_str =
-      td_->option_manager_->get_option_string("dice_emojis", "🎲\x01🎯\x01🏀\x01⚽\x01⚽️\x01🎰\x01🎳");
-  if (dice_emojis_str == dice_emojis_str_) {
-    return;
-  }
-  dice_emojis_str_ = std::move(dice_emojis_str);
-  auto new_dice_emojis = full_split(dice_emojis_str_, '\x01');
-  for (auto &emoji : new_dice_emojis) {
-    if (!td::contains(dice_emojis_, emoji)) {
-      auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_dice(emoji));
-      if (special_sticker_set.id_.is_valid()) {
-        // drop information about the sticker set to reload it
-        special_sticker_set.id_ = StickerSetId();
-        special_sticker_set.access_hash_ = 0;
-        special_sticker_set.short_name_.clear();
-      }
-
-      if (G()->use_sqlite_pmc()) {
-        LOG(INFO) << "Load new dice sticker set for emoji " << emoji;
-        load_special_sticker_set(special_sticker_set);
-      }
-    }
-  }
-  dice_emojis_ = std::move(new_dice_emojis);
-
-  send_closure(G()->td(), &Td::send_update, get_update_dice_emojis_object());
-}
-
-void StickersManager::on_update_dice_success_values() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    td_->option_manager_->set_option_empty("dice_success_values");
-    return;
-  }
-  if (!is_inited_) {
-    return;
-  }
-
-  auto dice_success_values_str =
-      td_->option_manager_->get_option_string("dice_success_values", "0,6:62,5:110,5:110,5:110,64:110,6:110");
-  if (dice_success_values_str == dice_success_values_str_) {
-    return;
-  }
-
-  LOG(INFO) << "Change dice success values to " << dice_success_values_str;
-  dice_success_values_str_ = std::move(dice_success_values_str);
-  dice_success_values_ = transform(full_split(dice_success_values_str_, ','), [](Slice value) {
-    auto result = split(value, ':');
-    return std::make_pair(to_integer<int32>(result.first), to_integer<int32>(result.second));
-  });
-}
-
-void StickersManager::on_update_emoji_sounds() {
-  if (G()->close_flag() || !is_inited_ || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto emoji_sounds_str = td_->option_manager_->get_option_string("emoji_sounds");
-  if (emoji_sounds_str == emoji_sounds_str_) {
-    return;
-  }
-
-  LOG(INFO) << "Change emoji sounds to " << emoji_sounds_str;
-  emoji_sounds_str_ = std::move(emoji_sounds_str);
-
-  vector<FileId> old_file_ids;
-  for (auto &emoji_sound : emoji_sounds_) {
-    old_file_ids.push_back(emoji_sound.second);
-  }
-  emoji_sounds_.clear();
-
-  vector<FileId> new_file_ids;
-  auto sounds = full_split(Slice(emoji_sounds_str_), ',');
-  CHECK(sounds.size() % 2 == 0);
-  for (size_t i = 0; i < sounds.size(); i += 2) {
-    vector<Slice> parts = full_split(sounds[i + 1], ':');
-    CHECK(parts.size() == 3);
-    auto id = to_integer<int64>(parts[0]);
-    auto access_hash = to_integer<int64>(parts[1]);
-    auto dc_id = G()->net_query_dispatcher().get_main_dc_id();
-    auto file_reference = base64url_decode(parts[2]).move_as_ok();
-    int32 expected_size = 7000;
-    auto suggested_file_name = PSTRING() << static_cast<uint64>(id) << '.'
-                                         << MimeType::to_extension("audio/ogg", "oga");
-    auto file_id = td_->file_manager_->register_remote(
-        FullRemoteFileLocation(FileType::VoiceNote, id, access_hash, dc_id, std::move(file_reference)),
-        FileLocationSource::FromServer, DialogId(), 0, expected_size, std::move(suggested_file_name));
-    CHECK(file_id.is_valid());
-    auto cleaned_emoji = remove_fitzpatrick_modifier(sounds[i]).str();
-    if (!cleaned_emoji.empty()) {
-      emoji_sounds_.emplace(cleaned_emoji, file_id);
-      new_file_ids.push_back(file_id);
-    }
-  }
-  td_->file_manager_->change_files_source(get_app_config_file_source_id(), old_file_ids, new_file_ids,
-                                          "on_update_emoji_sounds");
-
-  try_update_animated_emoji_messages();
-}
-
-void StickersManager::on_update_disable_animated_emojis() {
-  if (G()->close_flag() || !is_inited_ || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto disable_animated_emojis = td_->option_manager_->get_option_boolean("disable_animated_emoji");
-  if (disable_animated_emojis == disable_animated_emojis_) {
-    return;
-  }
-  disable_animated_emojis_ = disable_animated_emojis;
-  if (!disable_animated_emojis_) {
-    reload_special_sticker_set_by_type(SpecialStickerSetType::animated_emoji());
-    reload_special_sticker_set_by_type(SpecialStickerSetType::animated_emoji_click());
-  }
-  try_update_animated_emoji_messages();
-
-  vector<CustomEmojiId> custom_emoji_ids;
-  for (auto &it : custom_emoji_messages_) {
-    custom_emoji_ids.push_back(it.first);
-  }
-  for (auto custom_emoji_id : custom_emoji_ids) {
-    try_update_custom_emoji_messages(custom_emoji_id);
-  }
-
-  if (!disable_animated_emojis_) {
-    for (auto &slice_custom_emoji_ids : vector_split(std::move(custom_emoji_ids), MAX_GET_CUSTOM_EMOJI_STICKERS)) {
-      get_custom_emoji_stickers(std::move(slice_custom_emoji_ids), true, Auto());
-    }
-  }
-}
-
-void StickersManager::on_update_sticker_sets(StickerType sticker_type) {
-  auto type = static_cast<int32>(sticker_type);
-  archived_sticker_set_ids_[type].clear();
-  total_archived_sticker_set_count_[type] = -1;
-  reload_installed_sticker_sets(sticker_type, true);
-}
-
-void StickersManager::try_update_animated_emoji_messages() {
-  auto sticker_set = get_animated_emoji_sticker_set();
-  vector<MessageFullId> message_full_ids;
-  vector<QuickReplyMessageFullId> quick_reply_message_full_ids;
-  for (auto &it : emoji_messages_) {
-    auto new_animated_sticker = get_animated_emoji_sticker(sticker_set, it.first);
-    auto new_sound_file_id = get_animated_emoji_sound_file_id(it.first);
-    if (new_animated_sticker != it.second->animated_emoji_sticker_ ||
-        (new_animated_sticker.first.is_valid() && new_sound_file_id != it.second->sound_file_id_)) {
-      it.second->animated_emoji_sticker_ = new_animated_sticker;
-      it.second->sound_file_id_ = new_sound_file_id;
-      it.second->message_full_ids_.foreach(
-          [&](const MessageFullId &message_full_id) { message_full_ids.push_back(message_full_id); });
-      it.second->quick_reply_message_full_ids_.foreach([&](const QuickReplyMessageFullId &message_full_id) {
-        quick_reply_message_full_ids.push_back(message_full_id);
-      });
-    }
-  }
-  for (const auto &message_full_id : message_full_ids) {
-    td_->messages_manager_->on_external_update_message_content(message_full_id, "try_update_animated_emoji_messages");
-  }
-  for (const auto &message_full_id : quick_reply_message_full_ids) {
-    td_->quick_reply_manager_->on_external_update_message_content(message_full_id,
-                                                                  "try_update_animated_emoji_messages");
-  }
-}
-
-void StickersManager::try_update_custom_emoji_messages(CustomEmojiId custom_emoji_id) {
-  auto it = custom_emoji_messages_.find(custom_emoji_id);
-  if (it == custom_emoji_messages_.end()) {
-    return;
-  }
-
-  vector<MessageFullId> message_full_ids;
-  vector<QuickReplyMessageFullId> quick_reply_message_full_ids;
-  auto new_sticker_id = get_custom_animated_emoji_sticker_id(custom_emoji_id);
-  if (new_sticker_id != it->second->sticker_id_) {
-    it->second->sticker_id_ = new_sticker_id;
-    it->second->message_full_ids_.foreach(
-        [&](const MessageFullId &message_full_id) { message_full_ids.push_back(message_full_id); });
-    it->second->quick_reply_message_full_ids_.foreach([&](const QuickReplyMessageFullId &message_full_id) {
-      quick_reply_message_full_ids.push_back(message_full_id);
-    });
-  }
-  for (const auto &message_full_id : message_full_ids) {
-    td_->messages_manager_->on_external_update_message_content(message_full_id, "try_update_custom_emoji_messages");
-  }
-  for (const auto &message_full_id : quick_reply_message_full_ids) {
-    td_->quick_reply_manager_->on_external_update_message_content(message_full_id, "try_update_custom_emoji_messages");
-  }
-}
-
-void StickersManager::try_update_premium_gift_messages() {
-  auto sticker_set = get_premium_gift_sticker_set();
-  vector<MessageFullId> message_full_ids;
-  for (auto &it : premium_gift_messages_) {
-    auto new_sticker_id = get_premium_gift_option_sticker_id(sticker_set, it.first);
-    if (new_sticker_id != it.second->sticker_id_) {
-      it.second->sticker_id_ = new_sticker_id;
-      for (const auto &message_full_id : it.second->message_full_ids_) {
-        message_full_ids.push_back(message_full_id);
-      }
-    }
-  }
-  for (const auto &message_full_id : message_full_ids) {
-    td_->messages_manager_->on_external_update_message_content(message_full_id, "try_update_premium_gift_messages");
-  }
-}
-
-void StickersManager::register_premium_gift(int32 months, int64 star_count, MessageFullId message_full_id,
-                                            const char *source) {
-  if (months == 0) {
-    months = StarManager::get_months_by_star_count(star_count);
-  }
-  if (td_->auth_manager_->is_bot() || months == 0) {
-    return;
-  }
-
-  LOG(INFO) << "Register premium gift for " << months << " months from " << message_full_id << " from " << source;
-  auto &premium_gift_messages_ptr = premium_gift_messages_[months];
-  if (premium_gift_messages_ptr == nullptr) {
-    premium_gift_messages_ptr = make_unique<GiftPremiumMessages>();
-  }
-  auto &premium_gift_messages = *premium_gift_messages_ptr;
-
-  if (premium_gift_messages.message_full_ids_.empty()) {
-    premium_gift_messages.sticker_id_ = get_premium_gift_option_sticker_id(months);
-  }
-
-  bool is_inserted = premium_gift_messages.message_full_ids_.insert(message_full_id).second;
-  LOG_CHECK(is_inserted) << source << ' ' << months << ' ' << message_full_id;
-}
-
-void StickersManager::unregister_premium_gift(int32 months, int64 star_count, MessageFullId message_full_id,
-                                              const char *source) {
-  if (months == 0) {
-    months = StarManager::get_months_by_star_count(star_count);
-  }
-  if (td_->auth_manager_->is_bot() || months == 0) {
-    return;
-  }
-
-  LOG(INFO) << "Unregister premium gift for " << months << " months from " << message_full_id << " from " << source;
-  auto it = premium_gift_messages_.find(months);
-  CHECK(it != premium_gift_messages_.end());
-  auto &message_ids = it->second->message_full_ids_;
-  auto is_deleted = message_ids.erase(message_full_id) > 0;
-  LOG_CHECK(is_deleted) << source << ' ' << months << ' ' << message_full_id;
-
-  if (message_ids.empty()) {
-    premium_gift_messages_.erase(it);
-  }
-}
-
-void StickersManager::register_dice(const string &emoji, int32 value, MessageFullId message_full_id,
-                                    QuickReplyMessageFullId quick_reply_message_full_id, const char *source) {
-  CHECK(!emoji.empty());
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  LOG(INFO) << "Register dice " << emoji << " with value " << value << " from " << message_full_id << '/'
-            << quick_reply_message_full_id << " from " << source;
-  if (quick_reply_message_full_id.is_valid()) {
-    dice_quick_reply_messages_[emoji].insert(quick_reply_message_full_id);
-  } else {
-    CHECK(message_full_id.get_dialog_id().is_valid());
-    dice_messages_[emoji].insert(message_full_id);
-  }
-
-  if (!td::contains(dice_emojis_, emoji)) {
-    if (quick_reply_message_full_id.is_valid() ||
-        (message_full_id.get_message_id().is_any_server() &&
-         message_full_id.get_dialog_id().get_type() != DialogType::SecretChat)) {
-      send_closure(G()->config_manager(), &ConfigManager::reget_app_config, Promise<Unit>());
-    }
-    return;
-  }
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_dice(emoji));
-  bool need_load = false;
-  StickerSet *sticker_set = nullptr;
-  if (!special_sticker_set.id_.is_valid()) {
-    need_load = true;
-  } else {
-    sticker_set = get_sticker_set(special_sticker_set.id_);
-    CHECK(sticker_set != nullptr);
-    need_load = !sticker_set->was_loaded_;
-  }
-
-  if (need_load) {
-    LOG(INFO) << "Waiting for a dice sticker set needed in " << message_full_id << '/' << quick_reply_message_full_id;
-    load_special_sticker_set(special_sticker_set);
-  } else {
-    // TODO reload once in a while
-    // reload_special_sticker_set(special_sticker_set, sticker_set->is_loaded_ ? sticker_set->hash_ : 0);
-  }
-}
-
-void StickersManager::unregister_dice(const string &emoji, int32 value, MessageFullId message_full_id,
-                                      QuickReplyMessageFullId quick_reply_message_full_id, const char *source) {
-  CHECK(!emoji.empty());
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  LOG(INFO) << "Unregister dice " << emoji << " with value " << value << " from " << message_full_id << '/'
-            << quick_reply_message_full_id << " from " << source;
-  if (quick_reply_message_full_id.is_valid()) {
-    auto &message_ids = dice_quick_reply_messages_[emoji];
-    auto is_deleted = message_ids.erase(quick_reply_message_full_id) > 0;
-    LOG_CHECK(is_deleted) << source << ' ' << emoji << ' ' << value << ' ' << quick_reply_message_full_id;
-
-    if (message_ids.empty()) {
-      dice_quick_reply_messages_.erase(emoji);
-    }
-  } else {
-    auto &message_ids = dice_messages_[emoji];
-    auto is_deleted = message_ids.erase(message_full_id) > 0;
-    LOG_CHECK(is_deleted) << source << ' ' << emoji << ' ' << value << ' ' << message_full_id;
-
-    if (message_ids.empty()) {
-      dice_messages_.erase(emoji);
-    }
-  }
-}
-
-void StickersManager::register_emoji(const string &emoji, CustomEmojiId custom_emoji_id, MessageFullId message_full_id,
-                                     QuickReplyMessageFullId quick_reply_message_full_id, const char *source) {
-  CHECK(!emoji.empty());
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  LOG(INFO) << "Register emoji " << emoji << " with " << custom_emoji_id << " from " << message_full_id << '/'
-            << quick_reply_message_full_id << " from " << source;
-  if (custom_emoji_id.is_valid()) {
-    auto &emoji_messages_ptr = custom_emoji_messages_[custom_emoji_id];
-    if (emoji_messages_ptr == nullptr) {
-      emoji_messages_ptr = make_unique<CustomEmojiMessages>();
-    }
-    auto &emoji_messages = *emoji_messages_ptr;
-    if (emoji_messages.message_full_ids_.empty() && emoji_messages.quick_reply_message_full_ids_.empty()) {
-      if (!disable_animated_emojis_ && custom_emoji_to_sticker_id_.count(custom_emoji_id) == 0) {
-        load_custom_emoji_sticker_from_database_force(custom_emoji_id);
-        if (custom_emoji_to_sticker_id_.count(custom_emoji_id) == 0) {
-          get_custom_emoji_stickers({custom_emoji_id}, false, Promise<td_api::object_ptr<td_api::stickers>>());
-        }
-      }
-      emoji_messages.sticker_id_ = get_custom_animated_emoji_sticker_id(custom_emoji_id);
-    }
-    if (quick_reply_message_full_id.is_valid()) {
-      emoji_messages.quick_reply_message_full_ids_.insert(quick_reply_message_full_id);
-    } else {
-      CHECK(message_full_id.get_dialog_id().is_valid());
-      emoji_messages.message_full_ids_.insert(message_full_id);
-    }
-    return;
-  }
-
-  auto &emoji_messages_ptr = emoji_messages_[emoji];
-  if (emoji_messages_ptr == nullptr) {
-    emoji_messages_ptr = make_unique<EmojiMessages>();
-  }
-  auto &emoji_messages = *emoji_messages_ptr;
-  if (emoji_messages.message_full_ids_.empty() && emoji_messages.quick_reply_message_full_ids_.empty()) {
-    emoji_messages.animated_emoji_sticker_ = get_animated_emoji_sticker(emoji);
-    emoji_messages.sound_file_id_ = get_animated_emoji_sound_file_id(emoji);
-  }
-  if (quick_reply_message_full_id.is_valid()) {
-    emoji_messages.quick_reply_message_full_ids_.insert(quick_reply_message_full_id);
-  } else {
-    CHECK(message_full_id.get_dialog_id().is_valid());
-    emoji_messages.message_full_ids_.insert(message_full_id);
-  }
-}
-
-void StickersManager::unregister_emoji(const string &emoji, CustomEmojiId custom_emoji_id,
-                                       MessageFullId message_full_id,
-                                       QuickReplyMessageFullId quick_reply_message_full_id, const char *source) {
-  CHECK(!emoji.empty());
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  LOG(INFO) << "Unregister emoji " << emoji << " with " << custom_emoji_id << " from " << message_full_id << '/'
-            << quick_reply_message_full_id << " from " << source;
-  if (custom_emoji_id.is_valid()) {
-    auto it = custom_emoji_messages_.find(custom_emoji_id);
-    CHECK(it != custom_emoji_messages_.end());
-    if (quick_reply_message_full_id.is_valid()) {
-      auto is_deleted = it->second->quick_reply_message_full_ids_.erase(quick_reply_message_full_id) > 0;
-      LOG_CHECK(is_deleted) << source << ' ' << custom_emoji_id << ' ' << quick_reply_message_full_id;
-    } else {
-      auto is_deleted = it->second->message_full_ids_.erase(message_full_id) > 0;
-      LOG_CHECK(is_deleted) << source << ' ' << custom_emoji_id << ' ' << message_full_id;
-    }
-    if (it->second->message_full_ids_.empty() && it->second->quick_reply_message_full_ids_.empty()) {
-      custom_emoji_messages_.erase(it);
-    }
-    return;
-  }
-
-  auto it = emoji_messages_.find(emoji);
-  CHECK(it != emoji_messages_.end());
-  if (quick_reply_message_full_id.is_valid()) {
-    auto is_deleted = it->second->quick_reply_message_full_ids_.erase(quick_reply_message_full_id) > 0;
-    LOG_CHECK(is_deleted) << source << ' ' << custom_emoji_id << ' ' << quick_reply_message_full_id;
-  } else {
-    auto is_deleted = it->second->message_full_ids_.erase(message_full_id) > 0;
-    LOG_CHECK(is_deleted) << source << ' ' << custom_emoji_id << ' ' << message_full_id;
-  }
-  if (it->second->message_full_ids_.empty() && it->second->quick_reply_message_full_ids_.empty()) {
-    emoji_messages_.erase(it);
-  }
-}
-
-void StickersManager::get_animated_emoji(string emoji, bool is_recursive,
-                                         Promise<td_api::object_ptr<td_api::animatedEmoji>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_emoji());
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    if (is_recursive) {
-      return promise.set_value(nullptr);
-    }
-
-    pending_get_animated_emoji_queries_.push_back(
-        PromiseCreator::lambda([actor_id = actor_id(this), emoji = std::move(emoji),
-                                promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &StickersManager::get_animated_emoji, std::move(emoji), true, std::move(promise));
-          }
-        }));
-    load_special_sticker_set(special_sticker_set);
-    return;
-  }
-
-  promise.set_value(get_animated_emoji_object(get_animated_emoji_sticker(sticker_set, emoji),
-                                              get_animated_emoji_sound_file_id(emoji)));
-}
-
-void StickersManager::get_all_animated_emojis(bool is_recursive,
-                                              Promise<td_api::object_ptr<td_api::emojis>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_emoji());
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    if (is_recursive) {
-      return promise.set_value(td_api::make_object<td_api::emojis>());
-    }
-
-    pending_get_animated_emoji_queries_.push_back(PromiseCreator::lambda(
-        [actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &StickersManager::get_all_animated_emojis, true, std::move(promise));
-          }
-        }));
-    load_special_sticker_set(special_sticker_set);
-    return;
-  }
-
-  auto emojis = transform(sticker_set->sticker_ids_, [&](FileId sticker_id) {
-    auto s = get_sticker(sticker_id);
-    CHECK(s != nullptr);
-    return s->alt_;
-  });
-  promise.set_value(td_api::make_object<td_api::emojis>(std::move(emojis)));
-}
-
-void StickersManager::get_custom_emoji_reaction_generic_animations(
-    bool is_recursive, Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::generic_animations());
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    if (is_recursive) {
-      return promise.set_value(td_api::make_object<td_api::stickers>());
-    }
-
-    pending_get_generic_animations_queries_.push_back(PromiseCreator::lambda(
-        [actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &StickersManager::get_custom_emoji_reaction_generic_animations, true,
-                         std::move(promise));
-          }
-        }));
-    load_special_sticker_set(special_sticker_set);
-    return;
-  }
-
-  promise.set_value(get_stickers_object(sticker_set->sticker_ids_));
-}
-
-void StickersManager::get_default_emoji_statuses(
-    bool is_recursive, Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::default_statuses());
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    if (is_recursive) {
-      return promise.set_value(td_api::make_object<td_api::emojiStatusCustomEmojis>());
-    }
-
-    pending_get_default_statuses_queries_.push_back(PromiseCreator::lambda(
-        [actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &StickersManager::get_default_emoji_statuses, true, std::move(promise));
-          }
-        }));
-    load_special_sticker_set(special_sticker_set);
-    return;
-  }
-
-  vector<int64> custom_emoji_ids;
-  for (auto sticker_id : sticker_set->sticker_ids_) {
-    auto custom_emoji_id = get_custom_emoji_id(sticker_id);
-    if (!custom_emoji_id.is_valid()) {
-      LOG(ERROR) << "Ignore wrong sticker " << sticker_id;
-      continue;
-    }
-    custom_emoji_ids.push_back(custom_emoji_id.get());
-    if (custom_emoji_ids.size() >= 8) {
-      break;
-    }
-  }
-  promise.set_value(td_api::make_object<td_api::emojiStatusCustomEmojis>(std::move(custom_emoji_ids)));
-}
-
-int StickersManager::is_custom_emoji_from_sticker_set(CustomEmojiId custom_emoji_id,
-                                                      StickerSetId sticker_set_id) const {
-  const auto *sticker_set = get_sticker_set(sticker_set_id);
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    return -1;
-  }
-  for (auto sticker_id : sticker_set->sticker_ids_) {
-    if (get_custom_emoji_id(sticker_id) == custom_emoji_id) {
-      return 1;
-    }
-  }
-  return 0;
-}
-
-bool StickersManager::is_default_emoji_status(CustomEmojiId custom_emoji_id) {
-  return is_custom_emoji_from_sticker_set(
-             custom_emoji_id, add_special_sticker_set(SpecialStickerSetType::default_statuses()).id_) == 1 ||
-         is_custom_emoji_from_sticker_set(
-             custom_emoji_id, add_special_sticker_set(SpecialStickerSetType::default_channel_statuses()).id_) == 1;
-}
-
-void StickersManager::get_default_channel_emoji_statuses(
-    bool is_recursive, Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::default_channel_statuses());
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    if (is_recursive) {
-      return promise.set_value(td_api::make_object<td_api::emojiStatusCustomEmojis>());
-    }
-
-    pending_get_default_channel_statuses_queries_.push_back(PromiseCreator::lambda(
-        [actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &StickersManager::get_default_channel_emoji_statuses, true, std::move(promise));
-          }
-        }));
-    load_special_sticker_set(special_sticker_set);
-    return;
-  }
-
-  vector<int64> custom_emoji_ids;
-  for (auto sticker_id : sticker_set->sticker_ids_) {
-    auto custom_emoji_id = get_custom_emoji_id(sticker_id);
-    if (!custom_emoji_id.is_valid()) {
-      LOG(ERROR) << "Ignore wrong sticker " << sticker_id;
-      continue;
-    }
-    custom_emoji_ids.push_back(custom_emoji_id.get());
-    if (custom_emoji_ids.size() >= 8) {
-      break;
-    }
-  }
-  promise.set_value(td_api::make_object<td_api::emojiStatusCustomEmojis>(std::move(custom_emoji_ids)));
-}
-
-void StickersManager::get_default_topic_icons(bool is_recursive,
-                                              Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::default_topic_icons());
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    if (is_recursive) {
-      return promise.set_value(td_api::make_object<td_api::stickers>());
-    }
-
-    pending_get_default_topic_icons_queries_.push_back(PromiseCreator::lambda(
-        [actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &StickersManager::get_default_topic_icons, true, std::move(promise));
-          }
-        }));
-    load_special_sticker_set(special_sticker_set);
-    return;
-  }
-
-  if (!is_recursive && td_->auth_manager_->is_bot() && G()->unix_time() >= sticker_set->expires_at_) {
-    auto reload_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> &&result) mutable {
-          if (result.is_error()) {
-            promise.set_error(result.move_as_error());
-          } else {
-            send_closure(actor_id, &StickersManager::get_default_topic_icons, true, std::move(promise));
-          }
-        });
-    do_reload_sticker_set(sticker_set->id_, get_input_sticker_set(sticker_set), sticker_set->hash_,
-                          std::move(reload_promise), "get_default_topic_icons");
-    return;
-  }
-
-  promise.set_value(get_stickers_object(sticker_set->sticker_ids_));
-}
-
-void StickersManager::load_custom_emoji_sticker_from_database_force(CustomEmojiId custom_emoji_id) {
-  if (!G()->use_sqlite_pmc()) {
-    return;
-  }
-
-  auto value = G()->td_db()->get_sqlite_sync_pmc()->get(get_custom_emoji_database_key(custom_emoji_id));
-  if (value.empty()) {
-    LOG(INFO) << "Failed to load " << custom_emoji_id << " from database";
-    return;
-  }
-
-  LOG(INFO) << "Synchronously loaded " << custom_emoji_id << " of size " << value.size() << " from database";
-  CustomEmojiLogEvent log_event;
-  if (log_event_parse(log_event, value).is_error()) {
-    LOG(ERROR) << "Delete invalid " << custom_emoji_id << " value from database";
-    G()->td_db()->get_sqlite_sync_pmc()->erase(get_custom_emoji_database_key(custom_emoji_id));
-  }
-}
-
-void StickersManager::load_custom_emoji_sticker_from_database(CustomEmojiId custom_emoji_id, Promise<Unit> &&promise) {
-  CHECK(custom_emoji_id.is_valid());
-  if (!G()->use_sqlite_pmc()) {
-    return promise.set_value(Unit());
-  }
-
-  auto &queries = custom_emoji_load_queries_[custom_emoji_id];
-  queries.push_back(std::move(promise));
-  if (queries.size() == 1) {
-    LOG(INFO) << "Trying to load " << custom_emoji_id << " from database";
-    G()->td_db()->get_sqlite_pmc()->get(
-        get_custom_emoji_database_key(custom_emoji_id), PromiseCreator::lambda([custom_emoji_id](string value) {
-          send_closure(G()->stickers_manager(), &StickersManager::on_load_custom_emoji_from_database, custom_emoji_id,
-                       std::move(value));
-        }));
-  }
-}
-
-void StickersManager::on_load_custom_emoji_from_database(CustomEmojiId custom_emoji_id, string value) {
-  auto it = custom_emoji_load_queries_.find(custom_emoji_id);
-  CHECK(it != custom_emoji_load_queries_.end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  custom_emoji_load_queries_.erase(it);
-
-  if (!value.empty()) {
-    LOG(INFO) << "Successfully loaded " << custom_emoji_id << " of size " << value.size() << " from database";
-    CustomEmojiLogEvent log_event;
-    if (log_event_parse(log_event, value).is_error()) {
-      LOG(ERROR) << "Delete invalid " << custom_emoji_id << " value from database";
-      G()->td_db()->get_sqlite_pmc()->erase(get_custom_emoji_database_key(custom_emoji_id), Auto());
-    }
-  } else {
-    LOG(INFO) << "Failed to load " << custom_emoji_id << " from database";
-  }
-
-  set_promises(promises);
-}
-
-td_api::object_ptr<td_api::sticker> StickersManager::get_custom_emoji_sticker_object(CustomEmojiId custom_emoji_id) {
-  auto file_id = custom_emoji_to_sticker_id_.get(custom_emoji_id);
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-  auto s = get_sticker(file_id);
-  LOG_CHECK(s != nullptr) << file_id << ' ' << stickers_.calc_size();
-  CHECK(s->type_ == StickerType::CustomEmoji);
-  if (s->emoji_receive_date_ < G()->unix_time() - 86400 && !s->is_being_reloaded_) {
-    s->is_being_reloaded_ = true;
-    LOG(INFO) << "Reload " << custom_emoji_id;
-    auto promise = PromiseCreator::lambda(
-        [actor_id =
-             actor_id(this)](Result<vector<telegram_api::object_ptr<telegram_api::Document>>> r_documents) mutable {
-          send_closure(actor_id, &StickersManager::on_get_custom_emoji_documents, std::move(r_documents),
-                       vector<CustomEmojiId>(), Promise<td_api::object_ptr<td_api::stickers>>());
-        });
-    td_->create_handler<GetCustomEmojiDocumentsQuery>(std::move(promise))->send({custom_emoji_id});
-  }
-  return get_sticker_object(file_id);
-}
-
-td_api::object_ptr<td_api::stickers> StickersManager::get_custom_emoji_stickers_object(
-    const vector<CustomEmojiId> &custom_emoji_ids) {
-  vector<td_api::object_ptr<td_api::sticker>> stickers;
-  auto update_before_date = G()->unix_time() - 86400;
-  vector<CustomEmojiId> reload_custom_emoji_ids;
-  for (auto custom_emoji_id : custom_emoji_ids) {
-    auto file_id = custom_emoji_to_sticker_id_.get(custom_emoji_id);
-    if (file_id.is_valid()) {
-      auto s = get_sticker(file_id);
-      LOG_CHECK(s != nullptr) << file_id << ' ' << stickers_.calc_size();
-      CHECK(s->type_ == StickerType::CustomEmoji);
-      if (s->emoji_receive_date_ < update_before_date && !s->is_being_reloaded_) {
-        s->is_being_reloaded_ = true;
-        reload_custom_emoji_ids.push_back(custom_emoji_id);
-      }
-
-      auto sticker = get_sticker_object(file_id);
-      CHECK(sticker != nullptr);
-      stickers.push_back(std::move(sticker));
-    }
-  }
-  if (!reload_custom_emoji_ids.empty()) {
-    LOG(INFO) << "Reload " << reload_custom_emoji_ids;
-    auto promise = PromiseCreator::lambda(
-        [actor_id =
-             actor_id(this)](Result<vector<telegram_api::object_ptr<telegram_api::Document>>> r_documents) mutable {
-          send_closure(actor_id, &StickersManager::on_get_custom_emoji_documents, std::move(r_documents),
-                       vector<CustomEmojiId>(), Promise<td_api::object_ptr<td_api::stickers>>());
-        });
-    td_->create_handler<GetCustomEmojiDocumentsQuery>(std::move(promise))->send(std::move(reload_custom_emoji_ids));
-  }
-  return td_api::make_object<td_api::stickers>(std::move(stickers));
-}
-
-void StickersManager::get_custom_emoji_stickers_unlimited(vector<CustomEmojiId> custom_emoji_ids,
-                                                          Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  if (custom_emoji_ids.size() <= MAX_GET_CUSTOM_EMOJI_STICKERS) {
-    return get_custom_emoji_stickers(std::move(custom_emoji_ids), true, std::move(promise));
-  }
-
-  MultiPromiseActorSafe mpas{"GetCustomEmojiStickersMultiPromiseActor"};
-  mpas.add_promise(
-      PromiseCreator::lambda([actor_id = actor_id(this), custom_emoji_ids, promise = std::move(promise)](Unit) mutable {
-        send_closure(actor_id, &StickersManager::on_get_custom_emoji_stickers_unlimited, std::move(custom_emoji_ids),
-                     std::move(promise));
-      }));
-  auto lock = mpas.get_promise();
-  for (auto &slice_custom_emoji_ids : vector_split(std::move(custom_emoji_ids), MAX_GET_CUSTOM_EMOJI_STICKERS)) {
-    get_custom_emoji_stickers(std::move(slice_custom_emoji_ids), true,
-                              PromiseCreator::lambda([promise = mpas.get_promise()](
-                                                         Result<td_api::object_ptr<td_api::stickers>> result) mutable {
-                                if (result.is_ok()) {
-                                  promise.set_value(Unit());
-                                } else {
-                                  promise.set_error(result.move_as_error());
-                                }
-                              }));
-  }
-  lock.set_value(Unit());
-}
-
-void StickersManager::on_get_custom_emoji_stickers_unlimited(vector<CustomEmojiId> custom_emoji_ids,
-                                                             Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  promise.set_value(get_custom_emoji_stickers_object(custom_emoji_ids));
-}
-
-void StickersManager::get_custom_emoji_stickers(vector<CustomEmojiId> custom_emoji_ids, bool use_database,
-                                                Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (custom_emoji_ids.size() > MAX_GET_CUSTOM_EMOJI_STICKERS) {
-    return promise.set_error(Status::Error(400, "Too many custom emoji identifiers specified"));
-  }
-
-  FlatHashSet<CustomEmojiId, CustomEmojiIdHash> unique_custom_emoji_ids;
-  size_t j = 0;
-  for (size_t i = 0; i < custom_emoji_ids.size(); i++) {
-    auto custom_emoji_id = custom_emoji_ids[i];
-    if (custom_emoji_id.is_valid() && unique_custom_emoji_ids.insert(custom_emoji_id).second) {
-      custom_emoji_ids[j++] = custom_emoji_id;
-    }
-  }
-  custom_emoji_ids.resize(j);
-
-  vector<CustomEmojiId> unknown_custom_emoji_ids;
-  for (auto custom_emoji_id : custom_emoji_ids) {
-    if (custom_emoji_to_sticker_id_.count(custom_emoji_id) == 0) {
-      unknown_custom_emoji_ids.push_back(custom_emoji_id);
-    }
-  }
-
-  if (unknown_custom_emoji_ids.empty()) {
-    return promise.set_value(get_custom_emoji_stickers_object(custom_emoji_ids));
-  }
-
-  if (use_database && G()->use_sqlite_pmc()) {
-    MultiPromiseActorSafe mpas{"LoadCustomEmojiMultiPromiseActor"};
-    mpas.add_promise(PromiseCreator::lambda(
-        [actor_id = actor_id(this), custom_emoji_ids, promise = std::move(promise)](Unit) mutable {
-          send_closure(actor_id, &StickersManager::get_custom_emoji_stickers, std::move(custom_emoji_ids), false,
-                       std::move(promise));
-        }));
-
-    auto lock = mpas.get_promise();
-    for (auto custom_emoji_id : unknown_custom_emoji_ids) {
-      load_custom_emoji_sticker_from_database(custom_emoji_id, mpas.get_promise());
-    }
-
-    return lock.set_value(Unit());
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), custom_emoji_ids = std::move(custom_emoji_ids), promise = std::move(promise)](
-          Result<vector<telegram_api::object_ptr<telegram_api::Document>>> r_documents) mutable {
-        send_closure(actor_id, &StickersManager::on_get_custom_emoji_documents, std::move(r_documents),
-                     std::move(custom_emoji_ids), std::move(promise));
-      });
-  td_->create_handler<GetCustomEmojiDocumentsQuery>(std::move(query_promise))
-      ->send(std::move(unknown_custom_emoji_ids));
-}
-
-void StickersManager::on_get_custom_emoji_documents(
-    Result<vector<telegram_api::object_ptr<telegram_api::Document>>> &&r_documents,
-    vector<CustomEmojiId> &&custom_emoji_ids, Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (r_documents.is_error()) {
-    return promise.set_error(r_documents.move_as_error());
-  }
-  auto documents = r_documents.move_as_ok();
-
-  for (auto &document : documents) {
-    LOG(INFO) << "Receive " << to_string(document);
-    if (document->get_id() == telegram_api::documentEmpty::ID) {
-      continue;
-    }
-
-    on_get_sticker_document(std::move(document), StickerFormat::Unknown, "on_get_custom_emoji_documents");
-  }
-
-  promise.set_value(get_custom_emoji_stickers_object(custom_emoji_ids));
-}
-
-void StickersManager::get_default_custom_emoji_stickers(StickerListType sticker_list_type, bool force_reload,
-                                                        Promise<td_api::object_ptr<td_api::stickers>> &&promise) {
-  auto index = static_cast<int32>(sticker_list_type);
-  if (are_default_custom_emoji_ids_loaded_[index] && !force_reload) {
-    return get_custom_emoji_stickers_unlimited(default_custom_emoji_ids_[index], std::move(promise));
-  }
-
-  auto &queries = default_custom_emoji_ids_load_queries_[index];
-  queries.push_back(std::move(promise));
-  load_default_custom_emoji_ids(sticker_list_type, force_reload);
-}
-
-void StickersManager::get_sticker_list_emoji_statuses(
-    StickerListType sticker_list_type, bool force_reload,
-    Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise) {
-  auto index = static_cast<int32>(sticker_list_type);
-  if (are_default_custom_emoji_ids_loaded_[index] && !force_reload) {
-    return promise.set_value(get_emoji_status_custom_emojis_object(default_custom_emoji_ids_[index]));
-  }
-
-  auto &queries = default_emoji_statuses_load_queries_[index];
-  queries.push_back(std::move(promise));
-  load_default_custom_emoji_ids(sticker_list_type, force_reload);
-}
-
-void StickersManager::load_default_custom_emoji_ids(StickerListType sticker_list_type, bool force_reload) {
-  auto index = static_cast<int32>(sticker_list_type);
-  if (default_custom_emoji_ids_load_queries_[index].size() + default_emoji_statuses_load_queries_[index].size() != 1) {
-    // query has already been sent, just wait for the result
-    return;
-  }
-
-  if (G()->use_sqlite_pmc() && !are_default_custom_emoji_ids_loaded_[index]) {
-    LOG(INFO) << "Trying to load " << sticker_list_type << " from database";
-    return G()->td_db()->get_sqlite_pmc()->get(
-        get_sticker_list_type_database_key(sticker_list_type),
-        PromiseCreator::lambda([sticker_list_type, force_reload](string value) {
-          send_closure(G()->stickers_manager(), &StickersManager::on_load_default_custom_emoji_ids_from_database,
-                       sticker_list_type, force_reload, std::move(value));
-        }));
-  }
-
-  reload_default_custom_emoji_ids(sticker_list_type);
-}
-
-class StickersManager::CustomEmojiIdsLogEvent {
- public:
-  vector<CustomEmojiId> custom_emoji_ids_;
-  int64 hash_ = 0;
-
-  CustomEmojiIdsLogEvent() = default;
-
-  CustomEmojiIdsLogEvent(vector<CustomEmojiId> custom_emoji_ids, int64 hash)
-      : custom_emoji_ids_(std::move(custom_emoji_ids)), hash_(hash) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(custom_emoji_ids_, storer);
-    td::store(hash_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(custom_emoji_ids_, parser);
-    td::parse(hash_, parser);
-  }
-};
-
-void StickersManager::on_load_default_custom_emoji_ids_from_database(StickerListType sticker_list_type,
-                                                                     bool force_reload, string value) {
-  if (G()->close_flag()) {
-    auto index = static_cast<int32>(sticker_list_type);
-    fail_promises(default_custom_emoji_ids_load_queries_[index], Global::request_aborted_error());
-    fail_promises(default_emoji_statuses_load_queries_[index], Global::request_aborted_error());
-    return;
-  }
-
-  if (value.empty()) {
-    return reload_default_custom_emoji_ids(sticker_list_type);
-  }
-
-  LOG(INFO) << "Successfully loaded " << sticker_list_type << " of size " << value.size() << " from database";
-  CustomEmojiIdsLogEvent log_event;
-  if (log_event_parse(log_event, value).is_error()) {
-    LOG(ERROR) << "Delete invalid " << sticker_list_type << " from database";
-    G()->td_db()->get_sqlite_pmc()->erase(get_sticker_list_type_database_key(sticker_list_type), Auto());
-    return reload_default_custom_emoji_ids(sticker_list_type);
-  }
-
-  on_get_default_custom_emoji_ids_success(sticker_list_type, std::move(log_event.custom_emoji_ids_), log_event.hash_);
-  if (force_reload) {
-    reload_default_custom_emoji_ids(sticker_list_type);
-  }
-}
-
-void StickersManager::reload_default_custom_emoji_ids(StickerListType sticker_list_type) {
-  if (G()->close_flag()) {
-    auto index = static_cast<int32>(sticker_list_type);
-    fail_promises(default_custom_emoji_ids_load_queries_[index], Global::request_aborted_error());
-    fail_promises(default_emoji_statuses_load_queries_[index], Global::request_aborted_error());
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  auto index = static_cast<int32>(sticker_list_type);
-  if (are_default_custom_emoji_ids_being_loaded_[index]) {
-    return;
-  }
-  are_default_custom_emoji_ids_being_loaded_[index] = true;
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), sticker_list_type](
-                                 Result<telegram_api::object_ptr<telegram_api::EmojiList>> r_emoji_list) mutable {
-        send_closure(actor_id, &StickersManager::on_get_default_custom_emoji_ids, sticker_list_type,
-                     std::move(r_emoji_list));
-      });
-  td_->create_handler<GetDefaultDialogPhotoEmojisQuery>(std::move(query_promise))
-      ->send(sticker_list_type, default_custom_emoji_ids_hash_[index]);
-}
-
-void StickersManager::on_get_default_custom_emoji_ids(
-    StickerListType sticker_list_type, Result<telegram_api::object_ptr<telegram_api::EmojiList>> r_emoji_list) {
-  G()->ignore_result_if_closing(r_emoji_list);
-
-  auto index = static_cast<int32>(sticker_list_type);
-  CHECK(are_default_custom_emoji_ids_being_loaded_[index]);
-  are_default_custom_emoji_ids_being_loaded_[index] = false;
-
-  if (r_emoji_list.is_error()) {
-    fail_promises(default_custom_emoji_ids_load_queries_[index], r_emoji_list.move_as_error());
-    fail_promises(default_emoji_statuses_load_queries_[index], r_emoji_list.move_as_error());
-    return;
-  }
-
-  auto emoji_list_ptr = r_emoji_list.move_as_ok();
-  int32 constructor_id = emoji_list_ptr->get_id();
-  if (constructor_id == telegram_api::emojiListNotModified::ID) {
-    LOG(INFO) << "The " << sticker_list_type << " isn't modified";
-    if (!are_default_custom_emoji_ids_loaded_[index]) {
-      on_get_default_custom_emoji_ids_success(sticker_list_type, {}, 0);
-    }
-    auto sticker_promises = std::move(default_custom_emoji_ids_load_queries_[index]);
-    auto status_promises = std::move(default_emoji_statuses_load_queries_[index]);
-    reset_to_empty(default_custom_emoji_ids_load_queries_[index]);
-    reset_to_empty(default_emoji_statuses_load_queries_[index]);
-    for (auto &promise : sticker_promises) {
-      CHECK(!promise);
-    }
-    for (auto &promise : status_promises) {
-      CHECK(!promise);
-    }
-    return;
-  }
-  CHECK(constructor_id == telegram_api::emojiList::ID);
-  auto emoji_list = move_tl_object_as<telegram_api::emojiList>(emoji_list_ptr);
-  auto custom_emoji_ids = CustomEmojiId::get_custom_emoji_ids(emoji_list->document_id_);
-  auto hash = emoji_list->hash_;
-
-  if (G()->use_sqlite_pmc()) {
-    CustomEmojiIdsLogEvent log_event(custom_emoji_ids, hash);
-    G()->td_db()->get_sqlite_pmc()->set(get_sticker_list_type_database_key(sticker_list_type),
-                                        log_event_store(log_event).as_slice().str(), Auto());
-  }
-
-  on_get_default_custom_emoji_ids_success(sticker_list_type, std::move(custom_emoji_ids), hash);
-}
-
-void StickersManager::on_get_default_custom_emoji_ids_success(StickerListType sticker_list_type,
-                                                              vector<CustomEmojiId> custom_emoji_ids, int64 hash) {
-  auto index = static_cast<int32>(sticker_list_type);
-  LOG(INFO) << "Load " << custom_emoji_ids.size() << ' ' << sticker_list_type;
-  default_custom_emoji_ids_[index] = std::move(custom_emoji_ids);
-  default_custom_emoji_ids_hash_[index] = hash;
-  are_default_custom_emoji_ids_loaded_[index] = true;
-
-  auto sticker_promises = std::move(default_custom_emoji_ids_load_queries_[index]);
-  auto status_promises = std::move(default_emoji_statuses_load_queries_[index]);
-  reset_to_empty(default_custom_emoji_ids_load_queries_[index]);
-  reset_to_empty(default_emoji_statuses_load_queries_[index]);
-  for (auto &promise : sticker_promises) {
-    get_custom_emoji_stickers_unlimited(default_custom_emoji_ids_[index], std::move(promise));
-  }
-  for (auto &promise : status_promises) {
-    promise.set_value(get_emoji_status_custom_emojis_object(default_custom_emoji_ids_[index]));
-  }
-}
-
-void StickersManager::get_animated_emoji_click_sticker(const string &message_text, MessageFullId message_full_id,
-                                                       Promise<td_api::object_ptr<td_api::sticker>> &&promise) {
-  if (disable_animated_emojis_ || td_->auth_manager_->is_bot()) {
-    return promise.set_value(nullptr);
-  }
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_emoji_click());
-  if (!special_sticker_set.id_.is_valid()) {
-    // don't wait for the first load of the sticker set from the server
-    load_special_sticker_set(special_sticker_set);
-    return promise.set_value(nullptr);
-  }
-
-  auto sticker_set = get_sticker_set(special_sticker_set.id_);
-  CHECK(sticker_set != nullptr);
-  if (sticker_set->was_loaded_) {
-    return choose_animated_emoji_click_sticker(sticker_set, message_text, message_full_id, Time::now(),
-                                               std::move(promise));
-  }
-
-  LOG(INFO) << "Waiting for an emoji click sticker set needed in " << message_full_id;
-  load_special_sticker_set(special_sticker_set);
-
-  PendingGetAnimatedEmojiClickSticker pending_request;
-  pending_request.message_text_ = message_text;
-  pending_request.message_full_id_ = message_full_id;
-  pending_request.start_time_ = Time::now();
-  pending_request.promise_ = std::move(promise);
-  pending_get_animated_emoji_click_stickers_.push_back(std::move(pending_request));
-}
-
-int StickersManager::get_emoji_number(Slice emoji) {
-  // '0'-'9' + U+20E3
-  auto data = emoji.ubegin();
-  if (emoji.size() != 4 || emoji[0] < '0' || emoji[0] > '9' || data[1] != 0xE2 || data[2] != 0x83 || data[3] != 0xA3) {
-    return -1;
-  }
-  return emoji[0] - '0';
-}
-
-vector<FileId> StickersManager::get_animated_emoji_click_stickers(const StickerSet *sticker_set, Slice emoji) const {
-  vector<FileId> result;
-  for (auto sticker_id : sticker_set->sticker_ids_) {
-    auto s = get_sticker(sticker_id);
-    CHECK(s != nullptr);
-    if (remove_emoji_modifiers(s->alt_) == emoji) {
-      result.push_back(sticker_id);
-    }
-  }
-  if (result.empty()) {
-    const static vector<string> heart_emojis{"💛", "💙", "💚", "💜", "🧡", "🖤", "🤎", "🤍"};
-    if (td::contains(heart_emojis, emoji)) {
-      return get_animated_emoji_click_stickers(sticker_set, Slice("❤"));
-    }
-  }
-  return result;
-}
-
-void StickersManager::choose_animated_emoji_click_sticker(const StickerSet *sticker_set, string message_text,
-                                                          MessageFullId message_full_id, double start_time,
-                                                          Promise<td_api::object_ptr<td_api::sticker>> &&promise) {
-  CHECK(sticker_set->was_loaded_);
-  remove_emoji_modifiers_in_place(message_text);
-  if (message_text.empty()) {
-    return promise.set_error(Status::Error(400, "Message is not an animated emoji message"));
-  }
-
-  if (disable_animated_emojis_ || td_->auth_manager_->is_bot()) {
-    return promise.set_value(nullptr);
-  }
-
-  auto now = Time::now();
-  if (last_clicked_animated_emoji_ == message_text && last_clicked_animated_emoji_message_full_id_ == message_full_id &&
-      next_click_animated_emoji_message_time_ >= now + 2 * MIN_ANIMATED_EMOJI_CLICK_DELAY) {
-    return promise.set_value(nullptr);
-  }
-
-  auto all_sticker_ids = get_animated_emoji_click_stickers(sticker_set, message_text);
-  vector<std::pair<int, FileId>> found_stickers;
-  for (auto sticker_id : all_sticker_ids) {
-    auto it = sticker_set->sticker_emojis_map_.find(sticker_id);
-    if (it != sticker_set->sticker_emojis_map_.end()) {
-      for (auto &emoji : it->second) {
-        auto number = get_emoji_number(emoji);
-        if (number > 0) {
-          found_stickers.emplace_back(number, sticker_id);
-        }
-      }
-    }
-  }
-  if (found_stickers.empty()) {
-    LOG(INFO) << "There is no click effect for " << message_text << " from " << message_full_id;
-    return promise.set_value(nullptr);
-  }
-
-  if (last_clicked_animated_emoji_message_full_id_ != message_full_id) {
-    flush_pending_animated_emoji_clicks();
-    last_clicked_animated_emoji_message_full_id_ = message_full_id;
-  }
-  if (last_clicked_animated_emoji_ != message_text) {
-    pending_animated_emoji_clicks_.clear();
-    last_clicked_animated_emoji_ = std::move(message_text);
-  }
-
-  if (!pending_animated_emoji_clicks_.empty() && found_stickers.size() >= 2) {
-    for (auto it = found_stickers.begin(); it != found_stickers.end(); ++it) {
-      if (it->first == pending_animated_emoji_clicks_.back().first) {
-        found_stickers.erase(it);
-        break;
-      }
-    }
-  }
-
-  CHECK(!found_stickers.empty());
-  auto result = found_stickers[Random::fast(0, narrow_cast<int>(found_stickers.size()) - 1)];
-
-  pending_animated_emoji_clicks_.emplace_back(result.first, start_time);
-  if (pending_animated_emoji_clicks_.size() == 5) {
-    flush_pending_animated_emoji_clicks();
-  } else {
-    set_timeout_in(0.5);
-  }
-  if (now >= next_click_animated_emoji_message_time_) {
-    next_click_animated_emoji_message_time_ = now + MIN_ANIMATED_EMOJI_CLICK_DELAY;
-    promise.set_value(get_sticker_object(result.second, false, true));
-  } else {
-    create_actor<SleepActor>("SendClickAnimatedEmojiMessageResponse", next_click_animated_emoji_message_time_ - now,
-                             PromiseCreator::lambda([actor_id = actor_id(this), sticker_id = result.second,
-                                                     promise = std::move(promise)](Unit) mutable {
-                               send_closure(actor_id, &StickersManager::send_click_animated_emoji_message_response,
-                                            sticker_id, std::move(promise));
-                             }))
-        .release();
-    next_click_animated_emoji_message_time_ += MIN_ANIMATED_EMOJI_CLICK_DELAY;
-  }
-}
-
-void StickersManager::send_click_animated_emoji_message_response(
-    FileId sticker_id, Promise<td_api::object_ptr<td_api::sticker>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  promise.set_value(get_sticker_object(sticker_id, false, true));
-}
-
-void StickersManager::timeout_expired() {
-  flush_pending_animated_emoji_clicks();
-}
-
-void StickersManager::flush_pending_animated_emoji_clicks() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (pending_animated_emoji_clicks_.empty()) {
-    return;
-  }
-  auto clicks = std::move(pending_animated_emoji_clicks_);
-  pending_animated_emoji_clicks_.clear();
-  auto message_full_id = last_clicked_animated_emoji_message_full_id_;
-  last_clicked_animated_emoji_message_full_id_ = MessageFullId();
-  auto emoji = std::move(last_clicked_animated_emoji_);
-  last_clicked_animated_emoji_.clear();
-
-  if (td_->messages_manager_->is_message_edited_recently(message_full_id, 1)) {
-    // includes deleted message_full_id
-    return;
-  }
-  auto dialog_id = message_full_id.get_dialog_id();
-  auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-  if (input_peer == nullptr) {
-    return;
-  }
-
-  double start_time = clicks[0].second;
-  auto data = json_encode<string>(json_object([&clicks, start_time](auto &o) {
-    o("v", 1);
-    o("a", json_array(clicks, [start_time](auto &click) {
-        return json_object([&click, start_time](auto &o) {
-          o("i", click.first);
-          auto t = static_cast<int32>((click.second - start_time) * 100);
-          o("t", JsonRaw(PSLICE() << (t / 100) << '.' << (t < 10 ? "0" : "") << (t % 100)));
-        });
-      }));
-  }));
-
-  td_->create_handler<SendAnimatedEmojiClicksQuery>()->send(
-      dialog_id, std::move(input_peer),
-      make_tl_object<telegram_api::sendMessageEmojiInteraction>(
-          emoji, message_full_id.get_message_id().get_server_message_id().get(),
-          make_tl_object<telegram_api::dataJSON>(data)));
-
-  on_send_animated_emoji_clicks(dialog_id, emoji);
-}
-
-void StickersManager::on_send_animated_emoji_clicks(DialogId dialog_id, const string &emoji) {
-  flush_sent_animated_emoji_clicks();
-
-  if (!sent_animated_emoji_clicks_.empty() && sent_animated_emoji_clicks_.back().dialog_id_ == dialog_id &&
-      sent_animated_emoji_clicks_.back().emoji_ == emoji) {
-    sent_animated_emoji_clicks_.back().send_time_ = Time::now();
-    return;
-  }
-
-  SentAnimatedEmojiClicks clicks;
-  clicks.send_time_ = Time::now();
-  clicks.dialog_id_ = dialog_id;
-  clicks.emoji_ = emoji;
-  sent_animated_emoji_clicks_.push_back(std::move(clicks));
-}
-
-void StickersManager::flush_sent_animated_emoji_clicks() {
-  if (sent_animated_emoji_clicks_.empty()) {
-    return;
-  }
-  auto min_send_time = Time::now() - 30.0;
-  auto it = sent_animated_emoji_clicks_.begin();
-  while (it != sent_animated_emoji_clicks_.end() && it->send_time_ <= min_send_time) {
-    ++it;
-  }
-  sent_animated_emoji_clicks_.erase(sent_animated_emoji_clicks_.begin(), it);
-}
-
-bool StickersManager::is_sent_animated_emoji_click(DialogId dialog_id, const string &emoji) {
-  flush_sent_animated_emoji_clicks();
-  for (const auto &click : sent_animated_emoji_clicks_) {
-    if (click.dialog_id_ == dialog_id && click.emoji_ == emoji) {
-      return true;
-    }
-  }
-  return false;
-}
-
-Status StickersManager::on_animated_emoji_message_clicked(string &&emoji, MessageFullId message_full_id, string data) {
-  if (td_->auth_manager_->is_bot() || disable_animated_emojis_) {
-    return Status::OK();
-  }
-
-  TRY_RESULT(value, json_decode(data));
-  if (value.type() != JsonValue::Type::Object) {
-    return Status::Error("Expected an object");
-  }
-  auto &object = value.get_object();
-  TRY_RESULT(version, object.get_required_int_field("v"));
-  if (version != 1) {
-    return Status::OK();
-  }
-  TRY_RESULT(array_value, object.extract_required_field("a", JsonValue::Type::Array));
-  auto &array = array_value.get_array();
-  if (array.size() > 20) {
-    return Status::Error("Click array is too big");
-  }
-  vector<std::pair<int, double>> clicks;
-  double previous_start_time = 0.0;
-  double adjustment = 0.0;
-  for (auto &click : array) {
-    if (click.type() != JsonValue::Type::Object) {
-      return Status::Error("Expected clicks as JSON objects");
-    }
-    auto &click_object = click.get_object();
-    TRY_RESULT(index, click_object.get_required_int_field("i"));
-    if (index <= 0 || index > 9) {
-      return Status::Error("Wrong index");
-    }
-    TRY_RESULT(start_time, click_object.get_required_double_field("t"));
-    if (!std::isfinite(start_time)) {
-      return Status::Error("Receive invalid start time");
-    }
-    if (start_time < previous_start_time) {
-      return Status::Error("Non-monotonic start time");
-    }
-    if (start_time > previous_start_time + 3) {
-      return Status::Error("Too big delay between clicks");
-    }
-    previous_start_time = start_time;
-
-    auto adjusted_start_time =
-        clicks.empty() ? 0.0 : max(start_time + adjustment, clicks.back().second + MIN_ANIMATED_EMOJI_CLICK_DELAY);
-    adjustment = adjusted_start_time - start_time;
-    clicks.emplace_back(static_cast<int>(index), adjusted_start_time);
-  }
-
-  auto &special_sticker_set = add_special_sticker_set(SpecialStickerSetType::animated_emoji_click());
-  if (special_sticker_set.id_.is_valid()) {
-    auto sticker_set = get_sticker_set(special_sticker_set.id_);
-    CHECK(sticker_set != nullptr);
-    if (sticker_set->was_loaded_) {
-      schedule_update_animated_emoji_clicked(sticker_set, emoji, message_full_id, std::move(clicks));
-      return Status::OK();
-    }
-  }
-
-  LOG(INFO) << "Waiting for an emoji click sticker set needed in " << message_full_id;
-  load_special_sticker_set(special_sticker_set);
-
-  PendingOnAnimatedEmojiClicked pending_request;
-  pending_request.emoji_ = std::move(emoji);
-  pending_request.message_full_id_ = message_full_id;
-  pending_request.clicks_ = std::move(clicks);
-  pending_on_animated_emoji_message_clicked_.push_back(std::move(pending_request));
-  return Status::OK();
-}
-
-void StickersManager::schedule_update_animated_emoji_clicked(const StickerSet *sticker_set, Slice emoji,
-                                                             MessageFullId message_full_id,
-                                                             vector<std::pair<int, double>> clicks) {
-  if (clicks.empty()) {
-    return;
-  }
-  if (td_->messages_manager_->is_message_edited_recently(message_full_id, 2)) {
-    // includes deleted message_full_id
-    return;
-  }
-  auto dialog_id = message_full_id.get_dialog_id();
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Write)) {
-    return;
-  }
-
-  auto all_sticker_ids = get_animated_emoji_click_stickers(sticker_set, emoji);
-  FlatHashMap<int32, FileId> sticker_ids;
-  for (auto sticker_id : all_sticker_ids) {
-    auto it = sticker_set->sticker_emojis_map_.find(sticker_id);
-    if (it != sticker_set->sticker_emojis_map_.end()) {
-      for (auto &sticker_emoji : it->second) {
-        auto number = get_emoji_number(sticker_emoji);
-        if (number > 0) {
-          sticker_ids[number] = sticker_id;
-        }
-      }
-    }
-  }
-
-  auto now = Time::now();
-  auto start_time = max(now, next_update_animated_emoji_clicked_time_);
-  for (const auto &click : clicks) {
-    auto index = click.first;
-    if (index <= 0) {
-      return;
-    }
-    auto sticker_id = sticker_ids[index];
-    if (!sticker_id.is_valid()) {
-      LOG(INFO) << "Failed to find sticker for " << emoji << " with index " << index;
-      return;
-    }
-    create_actor<SleepActor>("SendUpdateAnimatedEmojiClicked", start_time + click.second - now,
-                             PromiseCreator::lambda([actor_id = actor_id(this), message_full_id, sticker_id](Unit) {
-                               send_closure(actor_id, &StickersManager::send_update_animated_emoji_clicked,
-                                            message_full_id, sticker_id);
-                             }))
-        .release();
-  }
-  next_update_animated_emoji_clicked_time_ = start_time + clicks.back().second + MIN_ANIMATED_EMOJI_CLICK_DELAY;
-}
-
-void StickersManager::send_update_animated_emoji_clicked(MessageFullId message_full_id, FileId sticker_id) {
-  if (G()->close_flag() || disable_animated_emojis_ || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (td_->messages_manager_->is_message_edited_recently(message_full_id, 2)) {
-    // includes deleted message_full_id
-    return;
-  }
-  auto dialog_id = message_full_id.get_dialog_id();
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Write)) {
-    return;
-  }
-
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateAnimatedEmojiMessageClicked>(
-                   td_->dialog_manager_->get_chat_id_object(dialog_id, "updateAnimatedEmojiMessageClicked"),
-                   message_full_id.get_message_id().get(), get_sticker_object(sticker_id, false, true)));
-}
-
-void StickersManager::view_featured_sticker_sets(const vector<StickerSetId> &sticker_set_ids) {
-  for (auto sticker_set_id : sticker_set_ids) {
-    auto set = get_sticker_set(sticker_set_id);
-    if (set != nullptr && !set->is_viewed_) {
-      auto type = static_cast<int32>(set->sticker_type_);
-      if (td::contains(featured_sticker_set_ids_[type], sticker_set_id)) {
-        need_update_featured_sticker_sets_[type] = true;
-      }
-      set->is_viewed_ = true;
-      pending_viewed_featured_sticker_set_ids_.insert(sticker_set_id);
-      update_sticker_set(set, "view_featured_sticker_sets");
-    }
-  }
-
-  for (int32 type = 0; type < MAX_STICKER_TYPE; type++) {
-    send_update_featured_sticker_sets(static_cast<StickerType>(type));
-  }
-
-  if (!pending_viewed_featured_sticker_set_ids_.empty() && !pending_featured_sticker_set_views_timeout_.has_timeout()) {
-    LOG(INFO) << "Have pending viewed trending sticker sets";
-    pending_featured_sticker_set_views_timeout_.set_callback(read_featured_sticker_sets);
-    pending_featured_sticker_set_views_timeout_.set_callback_data(static_cast<void *>(td_));
-    pending_featured_sticker_set_views_timeout_.set_timeout_in(MAX_FEATURED_STICKER_SET_VIEW_DELAY);
-  }
-}
-
-void StickersManager::read_featured_sticker_sets(void *td_void) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(td_void != nullptr);
-  auto td = static_cast<Td *>(td_void);
-
-  auto &set_ids = td->stickers_manager_->pending_viewed_featured_sticker_set_ids_;
-  vector<StickerSetId> sticker_set_ids;
-  for (auto sticker_set_id : set_ids) {
-    sticker_set_ids.push_back(sticker_set_id);
-  }
-  set_ids.clear();
-  td->create_handler<ReadFeaturedStickerSetsQuery>()->send(std::move(sticker_set_ids));
-}
-
-std::pair<int32, vector<StickerSetId>> StickersManager::get_archived_sticker_sets(StickerType sticker_type,
-                                                                                  StickerSetId offset_sticker_set_id,
-                                                                                  int32 limit, bool force,
-                                                                                  Promise<Unit> &&promise) {
-  if (limit <= 0) {
-    promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-    return {};
-  }
-
-  auto type = static_cast<int32>(sticker_type);
-  vector<StickerSetId> &sticker_set_ids = archived_sticker_set_ids_[type];
-  int32 total_count = total_archived_sticker_set_count_[type];
-  if (total_count >= 0) {
-    auto offset_it = sticker_set_ids.begin();
-    if (offset_sticker_set_id.is_valid()) {
-      offset_it = std::find(sticker_set_ids.begin(), sticker_set_ids.end(), offset_sticker_set_id);
-      if (offset_it == sticker_set_ids.end()) {
-        offset_it = sticker_set_ids.begin();
-      } else {
-        ++offset_it;
-      }
-    }
-    vector<StickerSetId> result;
-    while (result.size() < static_cast<size_t>(limit)) {
-      if (offset_it == sticker_set_ids.end()) {
-        break;
-      }
-      auto sticker_set_id = *offset_it++;
-      if (!sticker_set_id.is_valid()) {  // end of the list
-        promise.set_value(Unit());
-        return {total_count, std::move(result)};
-      }
-      result.push_back(sticker_set_id);
-    }
-    if (result.size() == static_cast<size_t>(limit) || force) {
-      promise.set_value(Unit());
-      return {total_count, std::move(result)};
-    }
-  }
-
-  td_->create_handler<GetArchivedStickerSetsQuery>(std::move(promise))
-      ->send(sticker_type, offset_sticker_set_id, limit);
-  return {};
-}
-
-void StickersManager::on_get_archived_sticker_sets(
-    StickerType sticker_type, StickerSetId offset_sticker_set_id,
-    vector<tl_object_ptr<telegram_api::StickerSetCovered>> &&sticker_sets, int32 total_count) {
-  auto type = static_cast<int32>(sticker_type);
-  vector<StickerSetId> &sticker_set_ids = archived_sticker_set_ids_[type];
-  if (!sticker_set_ids.empty() && sticker_set_ids.back() == StickerSetId()) {
-    return;
-  }
-  if (total_count < 0) {
-    LOG(ERROR) << "Receive " << total_count << " as total count of archived sticker sets";
-  }
-
-  // if 0 sticker sets are received, then set offset_sticker_set_id was found and there are no stickers after it
-  // or it wasn't found and there are no archived sets at all
-  bool is_last =
-      sticker_sets.empty() && (!offset_sticker_set_id.is_valid() ||
-                               (!sticker_set_ids.empty() && offset_sticker_set_id == sticker_set_ids.back()));
-
-  total_archived_sticker_set_count_[type] = total_count;
-  for (auto &sticker_set_covered : sticker_sets) {
-    auto sticker_set_id =
-        on_get_sticker_set_covered(std::move(sticker_set_covered), false, "on_get_archived_sticker_sets");
-    if (sticker_set_id.is_valid()) {
-      auto sticker_set = get_sticker_set(sticker_set_id);
-      CHECK(sticker_set != nullptr);
-      update_sticker_set(sticker_set, "on_get_archived_sticker_sets");
-
-      if (!td::contains(sticker_set_ids, sticker_set_id)) {
-        sticker_set_ids.push_back(sticker_set_id);
-      }
-    }
-  }
-  if (sticker_set_ids.size() >= static_cast<size_t>(total_count) || is_last) {
-    if (sticker_set_ids.size() != static_cast<size_t>(total_count)) {
-      LOG(ERROR) << "Expected total of " << total_count << " archived sticker sets, but " << sticker_set_ids.size()
-                 << " found";
-      total_archived_sticker_set_count_[type] = static_cast<int32>(sticker_set_ids.size());
-    }
-    sticker_set_ids.push_back(StickerSetId());
-  }
-  send_update_installed_sticker_sets();
-}
-
-td_api::object_ptr<td_api::trendingStickerSets> StickersManager::get_featured_sticker_sets(StickerType sticker_type,
-                                                                                           int32 offset, int32 limit,
-                                                                                           Promise<Unit> &&promise) {
-  if (offset < 0) {
-    promise.set_error(Status::Error(400, "Parameter offset must be non-negative"));
-    return {};
-  }
-
-  if (limit < 0) {
-    promise.set_error(Status::Error(400, "Parameter limit must be non-negative"));
-    return {};
-  }
-  if (limit == 0) {
-    offset = 0;
-  }
-
-  if (sticker_type == StickerType::Mask) {
-    promise.set_value(Unit());
-    return get_trending_sticker_sets_object(sticker_type, {});
-  }
-  auto type = static_cast<int32>(sticker_type);
-
-  if (!are_featured_sticker_sets_loaded_[type]) {
-    load_featured_sticker_sets(sticker_type, std::move(promise));
-    return {};
-  }
-  reload_featured_sticker_sets(sticker_type, false);
-
-  auto set_count = static_cast<int32>(featured_sticker_set_ids_[type].size());
-  if (offset < set_count) {
-    if (limit > set_count - offset) {
-      limit = set_count - offset;
-    }
-    promise.set_value(Unit());
-    auto begin = featured_sticker_set_ids_[type].begin() + offset;
-    return get_trending_sticker_sets_object(sticker_type, {begin, begin + limit});
-  }
-
-  if (offset == set_count && are_old_featured_sticker_sets_invalidated_[type]) {
-    invalidate_old_featured_sticker_sets(sticker_type);
-  }
-
-  auto total_count =
-      set_count + (old_featured_sticker_set_count_[type] == -1 ? 1 : old_featured_sticker_set_count_[type]);
-  if (offset < total_count || old_featured_sticker_set_count_[type] == -1) {
-    offset -= set_count;
-    set_count = static_cast<int32>(old_featured_sticker_set_ids_[type].size());
-    if (offset < set_count) {
-      if (limit > set_count - offset) {
-        limit = set_count - offset;
-      }
-      promise.set_value(Unit());
-      auto begin = old_featured_sticker_set_ids_[type].begin() + offset;
-      return get_trending_sticker_sets_object(sticker_type, {begin, begin + limit});
-    }
-    if (offset > set_count) {
-      promise.set_error(
-          Status::Error(400, "Too big offset specified; trending sticker sets can be received only consequently"));
-      return {};
-    }
-
-    load_old_featured_sticker_sets(sticker_type, std::move(promise));
-    return {};
-  }
-
-  promise.set_value(Unit());
-  return get_trending_sticker_sets_object(sticker_type, {});
-}
-
-void StickersManager::on_old_featured_sticker_sets_invalidated(StickerType sticker_type) {
-  if (sticker_type != StickerType::Regular) {
-    return;
-  }
-
-  auto type = static_cast<int32>(sticker_type);
-  LOG(INFO) << "Invalidate old trending sticker sets";
-  are_old_featured_sticker_sets_invalidated_[type] = true;
-
-  if (!G()->use_sqlite_pmc()) {
-    return;
-  }
-
-  G()->td_db()->get_binlog_pmc()->set("invalidate_old_featured_sticker_sets", "1");
-}
-
-void StickersManager::invalidate_old_featured_sticker_sets(StickerType sticker_type) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (sticker_type != StickerType::Regular) {
-    return;
-  }
-
-  auto type = static_cast<int32>(sticker_type);
-  LOG(INFO) << "Invalidate old featured sticker sets";
-  if (G()->use_sqlite_pmc()) {
-    G()->td_db()->get_binlog_pmc()->erase("invalidate_old_featured_sticker_sets");
-    G()->td_db()->get_sqlite_pmc()->erase_by_prefix("sssoldfeatured", Auto());
-  }
-  are_old_featured_sticker_sets_invalidated_[type] = false;
-  old_featured_sticker_set_ids_[type].clear();
-
-  old_featured_sticker_set_generation_[type]++;
-  fail_promises(load_old_featured_sticker_sets_queries_, Status::Error(400, "Trending sticker sets were updated"));
-}
-
-void StickersManager::set_old_featured_sticker_set_count(StickerType sticker_type, int32 count) {
-  auto type = static_cast<int32>(sticker_type);
-  if (old_featured_sticker_set_count_[type] == count) {
-    return;
-  }
-  if (sticker_type != StickerType::Regular) {
-    return;
-  }
-
-  on_old_featured_sticker_sets_invalidated(sticker_type);
-
-  old_featured_sticker_set_count_[type] = count;
-  need_update_featured_sticker_sets_[type] = true;
-
-  if (!G()->use_sqlite_pmc()) {
-    return;
-  }
-
-  LOG(INFO) << "Save old trending sticker set count " << count << " to binlog";
-  G()->td_db()->get_binlog_pmc()->set("old_featured_sticker_set_count", to_string(count));
-}
-
-void StickersManager::fix_old_featured_sticker_set_count(StickerType sticker_type) {
-  auto type = static_cast<int32>(sticker_type);
-  auto known_count = static_cast<int32>(old_featured_sticker_set_ids_[type].size());
-  if (old_featured_sticker_set_count_[type] < known_count) {
-    if (old_featured_sticker_set_count_[type] >= 0) {
-      LOG(ERROR) << "Have old trending sticker set count " << old_featured_sticker_set_count_[type] << ", but have "
-                 << known_count << " old trending sticker sets";
-    }
-    set_old_featured_sticker_set_count(sticker_type, known_count);
-  }
-  if (old_featured_sticker_set_count_[type] > known_count && known_count % OLD_FEATURED_STICKER_SET_SLICE_SIZE != 0) {
-    LOG(ERROR) << "Have " << known_count << " old sticker sets out of " << old_featured_sticker_set_count_[type];
-    set_old_featured_sticker_set_count(sticker_type, known_count);
-  }
-}
-
-void StickersManager::on_get_featured_sticker_sets(
-    StickerType sticker_type, int32 offset, int32 limit, uint32 generation,
-    tl_object_ptr<telegram_api::messages_FeaturedStickers> &&sticker_sets_ptr) {
-  auto type = static_cast<int32>(sticker_type);
-  if (offset < 0) {
-    next_featured_sticker_sets_load_time_[type] = Time::now_cached() + Random::fast(30 * 60, 50 * 60);
-  }
-
-  int32 constructor_id = sticker_sets_ptr->get_id();
-  if (constructor_id == telegram_api::messages_featuredStickersNotModified::ID) {
-    LOG(INFO) << "Trending sticker sets are not modified";
-    auto *stickers = static_cast<const telegram_api::messages_featuredStickersNotModified *>(sticker_sets_ptr.get());
-    if (offset >= 0 && generation == old_featured_sticker_set_generation_[type]) {
-      set_old_featured_sticker_set_count(sticker_type, stickers->count_);
-      fix_old_featured_sticker_set_count(sticker_type);
-    }
-    send_update_featured_sticker_sets(sticker_type);
-    return;
-  }
-  CHECK(constructor_id == telegram_api::messages_featuredStickers::ID);
-  auto featured_stickers = move_tl_object_as<telegram_api::messages_featuredStickers>(sticker_sets_ptr);
-
-  if (featured_stickers->premium_ != are_featured_sticker_sets_premium_[type]) {
-    on_old_featured_sticker_sets_invalidated(sticker_type);
-    if (offset >= 0) {
-      featured_stickers->premium_ = are_featured_sticker_sets_premium_[type];
-      reload_featured_sticker_sets(sticker_type, true);
-    }
-  }
-
-  if (offset >= 0 && generation == old_featured_sticker_set_generation_[type]) {
-    set_old_featured_sticker_set_count(sticker_type, featured_stickers->count_);
-    // the count will be fixed in on_load_old_featured_sticker_sets_finished
-  }
-
-  FlatHashSet<StickerSetId, StickerSetIdHash> unread_sticker_set_ids;
-  for (auto &unread_sticker_set_id : featured_stickers->unread_) {
-    StickerSetId sticker_set_id(unread_sticker_set_id);
-    if (sticker_set_id.is_valid()) {
-      unread_sticker_set_ids.insert(sticker_set_id);
-    }
-  }
-
-  vector<StickerSetId> featured_sticker_set_ids;
-  for (auto &sticker_set : featured_stickers->sets_) {
-    StickerSetId set_id = on_get_sticker_set_covered(std::move(sticker_set), true, "on_get_featured_sticker_sets");
-    if (!set_id.is_valid()) {
-      continue;
-    }
-
-    auto set = get_sticker_set(set_id);
-    CHECK(set != nullptr);
-    bool is_viewed = unread_sticker_set_ids.count(set_id) == 0;
-    if (is_viewed != set->is_viewed_) {
-      set->is_viewed_ = is_viewed;
-      set->is_changed_ = true;
-    }
-
-    update_sticker_set(set, "on_get_featured_sticker_sets 2");
-
-    featured_sticker_set_ids.push_back(set_id);
-  }
-
-  send_update_installed_sticker_sets();
-
-  if (offset >= 0) {
-    if (generation == old_featured_sticker_set_generation_[type] && sticker_type == StickerType::Regular) {
-      if (G()->use_sqlite_pmc() && !G()->close_flag()) {
-        LOG(INFO) << "Save old trending sticker sets to database with offset "
-                  << old_featured_sticker_set_ids_[type].size();
-        CHECK(old_featured_sticker_set_ids_[type].size() % OLD_FEATURED_STICKER_SET_SLICE_SIZE == 0);
-        StickerSetListLogEvent log_event(featured_sticker_set_ids, false);
-        G()->td_db()->get_sqlite_pmc()->set(PSTRING() << "sssoldfeatured" << old_featured_sticker_set_ids_[type].size(),
-                                            log_event_store(log_event).as_slice().str(), Auto());
-      }
-      on_load_old_featured_sticker_sets_finished(sticker_type, generation, std::move(featured_sticker_set_ids));
-    }
-
-    send_update_featured_sticker_sets(sticker_type);  // because of changed count
-    return;
-  }
-
-  on_load_featured_sticker_sets_finished(sticker_type, std::move(featured_sticker_set_ids),
-                                         featured_stickers->premium_);
-
-  LOG_IF(ERROR, featured_sticker_sets_hash_[type] != featured_stickers->hash_) << "Trending sticker sets hash mismatch";
-
-  if (G()->use_sqlite_pmc() && !G()->close_flag()) {
-    LOG(INFO) << "Save trending sticker sets to database";
-    StickerSetListLogEvent log_event(featured_sticker_set_ids_[type], are_featured_sticker_sets_premium_[type]);
-    G()->td_db()->get_sqlite_pmc()->set(PSTRING() << "sssfeatured" << get_featured_sticker_suffix(sticker_type),
-                                        log_event_store(log_event).as_slice().str(), Auto());
-  }
-}
-
-void StickersManager::on_get_featured_sticker_sets_failed(StickerType sticker_type, int32 offset, int32 limit,
-                                                          uint32 generation, Status error) {
-  auto type = static_cast<int32>(sticker_type);
-  CHECK(error.is_error());
-  if (offset >= 0) {
-    if (generation != old_featured_sticker_set_generation_[type] || sticker_type != StickerType::Regular) {
-      return;
-    }
-    fail_promises(load_old_featured_sticker_sets_queries_, std::move(error));
-  } else {
-    next_featured_sticker_sets_load_time_[type] = Time::now_cached() + Random::fast(5, 10);
-    fail_promises(load_featured_sticker_sets_queries_[type], std::move(error));
-  }
-}
-
-void StickersManager::load_featured_sticker_sets(StickerType sticker_type, Promise<Unit> &&promise) {
-  CHECK(sticker_type != StickerType::Mask);
-  auto type = static_cast<int32>(sticker_type);
-  if (td_->auth_manager_->is_bot()) {
-    are_featured_sticker_sets_loaded_[type] = true;
-    old_featured_sticker_set_count_[type] = 0;
-  }
-  if (are_featured_sticker_sets_loaded_[type]) {
-    promise.set_value(Unit());
-    return;
-  }
-  load_featured_sticker_sets_queries_[type].push_back(std::move(promise));
-  if (load_featured_sticker_sets_queries_[type].size() == 1u) {
-    if (G()->use_sqlite_pmc()) {
-      LOG(INFO) << "Trying to load trending sticker sets from database";
-      G()->td_db()->get_sqlite_pmc()->get(PSTRING() << "sssfeatured" << get_featured_sticker_suffix(sticker_type),
-                                          PromiseCreator::lambda([sticker_type](string value) {
-                                            send_closure(G()->stickers_manager(),
-                                                         &StickersManager::on_load_featured_sticker_sets_from_database,
-                                                         sticker_type, std::move(value));
-                                          }));
-    } else {
-      LOG(INFO) << "Trying to load trending sticker sets from server";
-      reload_featured_sticker_sets(sticker_type, true);
-    }
-  }
-}
-
-void StickersManager::on_load_featured_sticker_sets_from_database(StickerType sticker_type, string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Trending " << sticker_type << " sticker sets aren't found in database";
-    reload_featured_sticker_sets(sticker_type, true);
-    return;
-  }
-
-  LOG(INFO) << "Successfully loaded trending " << sticker_type << " sticker set list of size " << value.size()
-            << " from database";
-
-  StickerSetListLogEvent log_event;
-  auto status = log_event_parse(log_event, value);
-  if (status.is_error()) {
-    // can't happen unless database is broken
-    LOG(ERROR) << "Can't load trending sticker set list: " << status << ' ' << format::as_hex_dump<4>(Slice(value));
-    return reload_featured_sticker_sets(sticker_type, true);
-  }
-
-  vector<StickerSetId> sets_to_load;
-  for (auto sticker_set_id : log_event.sticker_set_ids_) {
-    StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    CHECK(sticker_set != nullptr);
-    if (!sticker_set->is_inited_) {
-      sets_to_load.push_back(sticker_set_id);
-    }
-  }
-
-  load_sticker_sets_without_stickers(
-      std::move(sets_to_load),
-      PromiseCreator::lambda([sticker_type, sticker_set_ids = std::move(log_event.sticker_set_ids_),
-                              is_premium = log_event.is_premium_](Result<> result) mutable {
-        if (result.is_ok()) {
-          send_closure(G()->stickers_manager(), &StickersManager::on_load_featured_sticker_sets_finished, sticker_type,
-                       std::move(sticker_set_ids), is_premium);
-        } else {
-          send_closure(G()->stickers_manager(), &StickersManager::reload_featured_sticker_sets, sticker_type, true);
-        }
-      }));
-}
-
-void StickersManager::on_load_featured_sticker_sets_finished(StickerType sticker_type,
-                                                             vector<StickerSetId> &&featured_sticker_set_ids,
-                                                             bool is_premium) {
-  auto type = static_cast<int32>(sticker_type);
-  if (!featured_sticker_set_ids_[type].empty() && featured_sticker_set_ids != featured_sticker_set_ids_[type]) {
-    // always invalidate old featured sticker sets when current featured sticker sets change
-    on_old_featured_sticker_sets_invalidated(sticker_type);
-  }
-  featured_sticker_set_ids_[type] = std::move(featured_sticker_set_ids);
-  are_featured_sticker_sets_premium_[type] = is_premium;
-  are_featured_sticker_sets_loaded_[type] = true;
-  need_update_featured_sticker_sets_[type] = true;
-  send_update_featured_sticker_sets(sticker_type);
-  set_promises(load_featured_sticker_sets_queries_[type]);
-}
-
-void StickersManager::load_old_featured_sticker_sets(StickerType sticker_type, Promise<Unit> &&promise) {
-  CHECK(sticker_type == StickerType::Regular);
-  CHECK(!td_->auth_manager_->is_bot());
-  auto type = static_cast<int32>(sticker_type);
-  CHECK(old_featured_sticker_set_ids_[type].size() % OLD_FEATURED_STICKER_SET_SLICE_SIZE == 0);
-  load_old_featured_sticker_sets_queries_.push_back(std::move(promise));
-  if (load_old_featured_sticker_sets_queries_.size() == 1u) {
-    if (G()->use_sqlite_pmc()) {
-      LOG(INFO) << "Trying to load old trending sticker sets from database with offset "
-                << old_featured_sticker_set_ids_[type].size();
-      G()->td_db()->get_sqlite_pmc()->get(
-          PSTRING() << "sssoldfeatured" << old_featured_sticker_set_ids_[type].size(),
-          PromiseCreator::lambda([sticker_type, generation = old_featured_sticker_set_generation_[type]](string value) {
-            send_closure(G()->stickers_manager(), &StickersManager::on_load_old_featured_sticker_sets_from_database,
-                         sticker_type, generation, std::move(value));
-          }));
-    } else {
-      LOG(INFO) << "Trying to load old trending sticker sets from server with offset "
-                << old_featured_sticker_set_ids_[type].size();
-      reload_old_featured_sticker_sets(sticker_type);
-    }
-  }
-}
-
-void StickersManager::on_load_old_featured_sticker_sets_from_database(StickerType sticker_type, uint32 generation,
-                                                                      string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(sticker_type == StickerType::Regular);
-  auto type = static_cast<int32>(sticker_type);
-  if (generation != old_featured_sticker_set_generation_[type]) {
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Old trending sticker sets aren't found in database";
-    return reload_old_featured_sticker_sets(sticker_type);
-  }
-
-  LOG(INFO) << "Successfully loaded old trending sticker set list of size " << value.size()
-            << " from database with offset " << old_featured_sticker_set_ids_[type].size();
-
-  StickerSetListLogEvent log_event;
-  auto status = log_event_parse(log_event, value);
-  if (status.is_error()) {
-    // can't happen unless database is broken
-    LOG(ERROR) << "Can't load old trending sticker set list: " << status << ' ' << format::as_hex_dump<4>(Slice(value));
-    return reload_old_featured_sticker_sets(sticker_type);
-  }
-  CHECK(!log_event.is_premium_);
-
-  vector<StickerSetId> sets_to_load;
-  for (auto sticker_set_id : log_event.sticker_set_ids_) {
-    StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    CHECK(sticker_set != nullptr);
-    if (!sticker_set->is_inited_) {
-      sets_to_load.push_back(sticker_set_id);
-    }
-  }
-
-  load_sticker_sets_without_stickers(
-      std::move(sets_to_load),
-      PromiseCreator::lambda(
-          [sticker_type, generation, sticker_set_ids = std::move(log_event.sticker_set_ids_)](Result<> result) mutable {
-            if (result.is_ok()) {
-              send_closure(G()->stickers_manager(), &StickersManager::on_load_old_featured_sticker_sets_finished,
-                           sticker_type, generation, std::move(sticker_set_ids));
-            } else {
-              send_closure(G()->stickers_manager(), &StickersManager::reload_old_featured_sticker_sets, sticker_type,
-                           generation);
-            }
-          }));
-}
-
-void StickersManager::on_load_old_featured_sticker_sets_finished(StickerType sticker_type, uint32 generation,
-                                                                 vector<StickerSetId> &&featured_sticker_set_ids) {
-  auto type = static_cast<int32>(sticker_type);
-  if (generation != old_featured_sticker_set_generation_[type]) {
-    fix_old_featured_sticker_set_count(sticker_type);  // must never be needed
-    return;
-  }
-  CHECK(sticker_type == StickerType::Regular);
-  append(old_featured_sticker_set_ids_[type], std::move(featured_sticker_set_ids));
-  fix_old_featured_sticker_set_count(sticker_type);
-  set_promises(load_old_featured_sticker_sets_queries_);
-}
-
-vector<StickerSetId> StickersManager::get_attached_sticker_sets(FileId file_id, Promise<Unit> &&promise) {
-  if (!file_id.is_valid()) {
-    promise.set_error(Status::Error(400, "Wrong file_id specified"));
-    return {};
-  }
-
-  auto it = attached_sticker_sets_.find(file_id);
-  if (it != attached_sticker_sets_.end()) {
-    promise.set_value(Unit());
-    return it->second;
-  }
-
-  send_get_attached_stickers_query(file_id, std::move(promise));
-  return {};
-}
-
-void StickersManager::send_get_attached_stickers_query(FileId file_id, Promise<Unit> &&promise) {
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.empty()) {
-    return promise.set_error(Status::Error(400, "File not found"));
-  }
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr || (!full_remote_location->is_document() && !full_remote_location->is_photo()) ||
-      full_remote_location->is_web()) {
-    return promise.set_value(Unit());
-  }
-
-  tl_object_ptr<telegram_api::InputStickeredMedia> input_stickered_media;
-  string file_reference;
-  if (full_remote_location->is_photo()) {
-    auto input_photo = full_remote_location->as_input_photo();
-    file_reference = input_photo->file_reference_.as_slice().str();
-    input_stickered_media = make_tl_object<telegram_api::inputStickeredMediaPhoto>(std::move(input_photo));
-  } else {
-    auto input_document = full_remote_location->as_input_document();
-    file_reference = input_document->file_reference_.as_slice().str();
-    input_stickered_media = make_tl_object<telegram_api::inputStickeredMediaDocument>(std::move(input_document));
-  }
-
-  td_->create_handler<GetAttachedStickerSetsQuery>(std::move(promise))
-      ->send(file_id, std::move(file_reference), std::move(input_stickered_media));
-}
-
-void StickersManager::on_get_attached_sticker_sets(
-    FileId file_id, vector<tl_object_ptr<telegram_api::StickerSetCovered>> &&sticker_sets) {
-  CHECK(file_id.is_valid());
-  vector<StickerSetId> &sticker_set_ids = attached_sticker_sets_[file_id];
-  sticker_set_ids.clear();
-  for (auto &sticker_set_covered : sticker_sets) {
-    auto sticker_set_id =
-        on_get_sticker_set_covered(std::move(sticker_set_covered), true, "on_get_attached_sticker_sets");
-    if (sticker_set_id.is_valid()) {
-      auto sticker_set = get_sticker_set(sticker_set_id);
-      CHECK(sticker_set != nullptr);
-      update_sticker_set(sticker_set, "on_get_attached_sticker_sets");
-
-      sticker_set_ids.push_back(sticker_set_id);
-    }
-  }
-  send_update_installed_sticker_sets();
-}
-
-// -1 - order can't be applied, because some sticker sets aren't loaded or aren't installed,
-// 0 - order wasn't changed, 1 - order was partly replaced by the new order, 2 - order was replaced by the new order
-int StickersManager::apply_installed_sticker_sets_order(StickerType sticker_type,
-                                                        const vector<StickerSetId> &sticker_set_ids) {
-  auto type = static_cast<int32>(sticker_type);
-  if (!are_installed_sticker_sets_loaded_[type]) {
-    return -1;
-  }
-
-  vector<StickerSetId> &current_sticker_set_ids = installed_sticker_set_ids_[type];
-  if (sticker_set_ids == current_sticker_set_ids) {
-    return 0;
-  }
-
-  FlatHashSet<StickerSetId, StickerSetIdHash> valid_set_ids;
-  for (auto sticker_set_id : current_sticker_set_ids) {
-    valid_set_ids.insert(sticker_set_id);
-  }
-
-  vector<StickerSetId> new_sticker_set_ids;
-  for (auto sticker_set_id : sticker_set_ids) {
-    auto it = valid_set_ids.find(sticker_set_id);
-    if (it != valid_set_ids.end()) {
-      new_sticker_set_ids.push_back(sticker_set_id);
-      valid_set_ids.erase(it);
-    } else {
-      return -1;
-    }
-  }
-  if (new_sticker_set_ids.empty()) {
-    return 0;
-  }
-  if (!valid_set_ids.empty()) {
-    vector<StickerSetId> missed_sticker_set_ids;
-    for (auto sticker_set_id : current_sticker_set_ids) {
-      auto it = valid_set_ids.find(sticker_set_id);
-      if (it != valid_set_ids.end()) {
-        missed_sticker_set_ids.push_back(sticker_set_id);
-        valid_set_ids.erase(it);
-      }
-    }
-    append(missed_sticker_set_ids, new_sticker_set_ids);
-    new_sticker_set_ids = std::move(missed_sticker_set_ids);
-  }
-  CHECK(valid_set_ids.empty());
-
-  if (new_sticker_set_ids == current_sticker_set_ids) {
-    return 0;
-  }
-  current_sticker_set_ids = std::move(new_sticker_set_ids);
-
-  need_update_installed_sticker_sets_[type] = true;
-  if (sticker_set_ids != current_sticker_set_ids) {
-    return 1;
-  }
-  return 2;
-}
-
-void StickersManager::on_update_sticker_sets_order(StickerType sticker_type,
-                                                   const vector<StickerSetId> &sticker_set_ids) {
-  int result = apply_installed_sticker_sets_order(sticker_type, sticker_set_ids);
-  if (result < 0) {
-    return reload_installed_sticker_sets(sticker_type, true);
-  }
-  if (result > 0) {
-    send_update_installed_sticker_sets();
-  }
-}
-
-// -1 - sticker set can't be moved to top, 0 - order wasn't changed, 1 - sticker set was moved to top
-int StickersManager::move_installed_sticker_set_to_top(StickerType sticker_type, StickerSetId sticker_set_id) {
-  LOG(INFO) << "Move " << sticker_set_id << " to top of " << sticker_type;
-  auto type = static_cast<int32>(sticker_type);
-  if (!are_installed_sticker_sets_loaded_[type]) {
-    return -1;
-  }
-
-  vector<StickerSetId> &current_sticker_set_ids = installed_sticker_set_ids_[type];
-  if (!current_sticker_set_ids.empty() && sticker_set_id == current_sticker_set_ids[0]) {
-    return 0;
-  }
-  if (!td::contains(current_sticker_set_ids, sticker_set_id)) {
-    return -1;
-  }
-  add_to_top(current_sticker_set_ids, current_sticker_set_ids.size(), sticker_set_id);
-
-  need_update_installed_sticker_sets_[type] = true;
-  return 1;
-}
-
-void StickersManager::on_update_move_sticker_set_to_top(StickerType sticker_type, StickerSetId sticker_set_id) {
-  int result = move_installed_sticker_set_to_top(sticker_type, sticker_set_id);
-  if (result < 0) {
-    return reload_installed_sticker_sets(sticker_type, true);
-  }
-  if (result > 0) {
-    send_update_installed_sticker_sets();
-  }
-}
-
-void StickersManager::reorder_installed_sticker_sets(StickerType sticker_type,
-                                                     const vector<StickerSetId> &sticker_set_ids,
-                                                     Promise<Unit> &&promise) {
-  auto result = apply_installed_sticker_sets_order(sticker_type, sticker_set_ids);
-  if (result < 0) {
-    return promise.set_error(Status::Error(400, "Wrong sticker set list"));
-  }
-  if (result > 0) {
-    auto type = static_cast<int32>(sticker_type);
-    td_->create_handler<ReorderStickerSetsQuery>()->send(sticker_type, installed_sticker_set_ids_[type]);
-    send_update_installed_sticker_sets();
-  }
-  promise.set_value(Unit());
-}
-
-void StickersManager::move_sticker_set_to_top_by_sticker_id(FileId sticker_id) {
-  LOG(INFO) << "Move to top sticker set of " << sticker_id;
-  const auto *s = get_sticker(sticker_id);
-  if (s == nullptr || !s->set_id_.is_valid()) {
-    return;
-  }
-  if (s->type_ == StickerType::CustomEmoji) {
-    // just in case
-    return;
-  }
-  if (move_installed_sticker_set_to_top(s->type_, s->set_id_) > 0) {
-    send_update_installed_sticker_sets();
-  }
-}
-
-void StickersManager::move_sticker_set_to_top_by_custom_emoji_ids(const vector<CustomEmojiId> &custom_emoji_ids) {
-  LOG(INFO) << "Move to top sticker set of " << custom_emoji_ids;
-  StickerSetId sticker_set_id;
-  for (auto custom_emoji_id : custom_emoji_ids) {
-    auto sticker_id = custom_emoji_to_sticker_id_.get(custom_emoji_id);
-    if (!sticker_id.is_valid()) {
-      return;
-    }
-    const auto *s = get_sticker(sticker_id);
-    CHECK(s != nullptr);
-    CHECK(s->type_ == StickerType::CustomEmoji);
-    if (!s->set_id_.is_valid()) {
-      return;
-    }
-    if (s->set_id_ != sticker_set_id) {
-      if (sticker_set_id.is_valid()) {
-        return;
-      }
-      sticker_set_id = s->set_id_;
-    }
-  }
-  CHECK(sticker_set_id.is_valid());
-  if (move_installed_sticker_set_to_top(StickerType::CustomEmoji, sticker_set_id) > 0) {
-    send_update_installed_sticker_sets();
-  }
-}
-
-Result<std::tuple<FileId, bool, bool>> StickersManager::prepare_input_sticker(td_api::inputSticker *sticker,
-                                                                              StickerType sticker_type) {
-  if (sticker == nullptr) {
-    return Status::Error(400, "Input sticker must be non-empty");
-  }
-
-  if (!clean_input_string(sticker->emojis_)) {
-    return Status::Error(400, "Emojis must be encoded in UTF-8");
-  }
-
-  for (auto &keyword : sticker->keywords_) {
-    if (!clean_input_string(keyword)) {
-      return Status::Error(400, "Keywords must be encoded in UTF-8");
-    }
-    for (auto &c : keyword) {
-      if (c == ',' || c == '\n') {
-        c = ' ';
-      }
-    }
-  }
-
-  return prepare_input_file(sticker->sticker_, ::td::get_sticker_format(sticker->format_), sticker_type, false);
-}
-
-Result<std::tuple<FileId, bool, bool>> StickersManager::prepare_input_file(
-    const tl_object_ptr<td_api::InputFile> &input_file, StickerFormat sticker_format, StickerType sticker_type,
-    bool for_thumbnail) {
-  if (sticker_format == StickerFormat::Unknown) {
-    return Status::Error(400, "Sticker format must be non-empty");
-  }
-
-  auto file_type = sticker_format == StickerFormat::Tgs ? FileType::Sticker : FileType::Document;
-  TRY_RESULT(file_id, td_->file_manager_->get_input_file_id(file_type, input_file, DialogId(), for_thumbnail, false));
-  if (file_id.empty()) {
-    return std::make_tuple(FileId(), false, false);
-  }
-
-  if (sticker_format == StickerFormat::Tgs) {
-    int32 width = for_thumbnail ? 100 : 512;
-    create_sticker(file_id, FileId(), string(), PhotoSize(), get_dimensions(width, width, "prepare_input_file"),
-                   nullptr, nullptr, sticker_format, nullptr);
-  } else if (sticker_format == StickerFormat::Webm) {
-    td_->documents_manager_->create_document(file_id, string(), PhotoSize(), "sticker.webm", "video/webm", false);
-  } else {
-    td_->documents_manager_->create_document(file_id, string(), PhotoSize(), "sticker.png", "image/png", false);
-  }
-
-  FileView file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return Status::Error(400, "Can't use encrypted file");
-  }
-
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && main_remote_location->is_web()) {
-    return Status::Error(400, "Can't use web file to create a sticker");
-  }
-  bool is_url = false;
-  bool is_local = false;
-  if (main_remote_location != nullptr) {
-    CHECK(main_remote_location->is_document());
-  } else {
-    if (file_view.has_url()) {
-      is_url = true;
-    } else {
-      if (file_view.has_full_local_location() &&
-          file_view.expected_size() > get_max_sticker_file_size(sticker_format, sticker_type, for_thumbnail)) {
-        return Status::Error(400, "File is too big");
-      }
-      is_local = true;
-    }
-  }
-  if (is_url) {
-    if (sticker_format == StickerFormat::Tgs) {
-      return Status::Error(400, "Animated stickers can't be uploaded by URL");
-    }
-    if (sticker_format == StickerFormat::Webm) {
-      return Status::Error(400, "Video stickers can't be uploaded by URL");
-    }
-  }
-  return std::make_tuple(file_id, is_url, is_local);
-}
-
-void StickersManager::upload_sticker_file(UserId user_id, StickerFormat sticker_format,
-                                          const td_api::object_ptr<td_api::InputFile> &input_file,
-                                          Promise<td_api::object_ptr<td_api::file>> &&promise) {
-  bool is_bot = td_->auth_manager_->is_bot();
-  if (!is_bot) {
-    user_id = td_->user_manager_->get_my_id();
-  }
-
-  TRY_STATUS_PROMISE(promise, td_->user_manager_->get_input_user(user_id));
-
-  // StickerType::Regular has less restrictions
-  TRY_RESULT_PROMISE(promise, file_info, prepare_input_file(input_file, sticker_format, StickerType::Regular, false));
-  auto file_id = std::get<0>(file_info);
-  auto is_url = std::get<1>(file_info);
-  auto is_local = std::get<2>(file_info);
-
-  auto upload_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), file_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &StickersManager::finish_upload_sticker_file, file_id, std::move(promise));
-      });
-
-  if (is_url) {
-    do_upload_sticker_file(user_id, {file_id, FileManager::get_internal_upload_id()}, nullptr,
-                           std::move(upload_promise));
-  } else if (is_local) {
-    upload_sticker_file(user_id, file_id, std::move(upload_promise));
-  } else {
-    upload_promise.set_value(Unit());
-  }
-}
-
-void StickersManager::finish_upload_sticker_file(FileId file_id, Promise<td_api::object_ptr<td_api::file>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  FileView file_view = td_->file_manager_->get_file_view(file_id);
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location == nullptr) {
-    return promise.set_error(Status::Error(500, "Failed to upload the file"));
-  }
-
-  promise.set_value(td_->file_manager_->get_file_object(file_id));
-}
-
-Result<telegram_api::object_ptr<telegram_api::inputStickerSetItem>> StickersManager::get_input_sticker(
-    const td_api::inputSticker *sticker, FileId file_id) const {
-  CHECK(sticker != nullptr);
-  FileView file_view = td_->file_manager_->get_file_view(file_id);
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location == nullptr) {
-    // merge has failed
-    return Status::Error(500, "Failed to upload the file");
-  }
-  auto input_document = main_remote_location->as_input_document();
-
-  int32 flags = 0;
-
-  auto mask_coords = StickerMaskPosition(sticker->mask_position_).get_input_mask_coords();
-  if (mask_coords != nullptr) {
-    flags |= telegram_api::inputStickerSetItem::MASK_COORDS_MASK;
-  }
-
-  string keywords = implode(sticker->keywords_, ',');
-  if (!keywords.empty()) {
-    flags |= telegram_api::inputStickerSetItem::KEYWORDS_MASK;
-  }
-
-  return make_tl_object<telegram_api::inputStickerSetItem>(flags, std::move(input_document), sticker->emojis_,
-                                                           std::move(mask_coords), keywords);
-}
-
-void StickersManager::get_suggested_sticker_set_name(string title, Promise<string> &&promise) {
-  title = strip_empty_characters(title, MAX_STICKER_SET_TITLE_LENGTH);
-  if (title.empty()) {
-    return promise.set_error(Status::Error(400, "Sticker set title must be non-empty"));
-  }
-
-  td_->create_handler<SuggestStickerSetShortNameQuery>(std::move(promise))->send(title);
-}
-
-void StickersManager::check_sticker_set_name(const string &name, Promise<CheckStickerSetNameResult> &&promise) {
-  if (name.empty()) {
-    return promise.set_value(CheckStickerSetNameResult::Invalid);
-  }
-
-  auto request_promise = PromiseCreator::lambda([promise = std::move(promise)](Result<bool> result) mutable {
-    if (result.is_error()) {
-      auto error = result.move_as_error();
-      if (error.message() == "SHORT_NAME_INVALID") {
-        return promise.set_value(CheckStickerSetNameResult::Invalid);
-      }
-      if (error.message() == "SHORT_NAME_OCCUPIED") {
-        return promise.set_value(CheckStickerSetNameResult::Occupied);
-      }
-      return promise.set_error(std::move(error));
-    }
-
-    promise.set_value(CheckStickerSetNameResult::Ok);
-  });
-
-  return td_->create_handler<CheckStickerSetShortNameQuery>(std::move(request_promise))->send(name);
-}
-
-td_api::object_ptr<td_api::CheckStickerSetNameResult> StickersManager::get_check_sticker_set_name_result_object(
-    CheckStickerSetNameResult result) {
-  switch (result) {
-    case CheckStickerSetNameResult::Ok:
-      return td_api::make_object<td_api::checkStickerSetNameResultOk>();
-    case CheckStickerSetNameResult::Invalid:
-      return td_api::make_object<td_api::checkStickerSetNameResultNameInvalid>();
-    case CheckStickerSetNameResult::Occupied:
-      return td_api::make_object<td_api::checkStickerSetNameResultNameOccupied>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-void StickersManager::create_new_sticker_set(UserId user_id, string title, string short_name, StickerType sticker_type,
-                                             bool has_text_color,
-                                             vector<td_api::object_ptr<td_api::inputSticker>> &&stickers,
-                                             string software,
-                                             Promise<td_api::object_ptr<td_api::stickerSet>> &&promise) {
-  bool is_bot = td_->auth_manager_->is_bot();
-  if (!is_bot) {
-    user_id = td_->user_manager_->get_my_id();
-  }
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  title = strip_empty_characters(title, MAX_STICKER_SET_TITLE_LENGTH);
-  if (title.empty()) {
-    return promise.set_error(Status::Error(400, "Sticker set title must be non-empty"));
-  }
-
-  short_name = strip_empty_characters(short_name, MAX_STICKER_SET_SHORT_NAME_LENGTH);
-  if (short_name.empty() && is_bot) {
-    return promise.set_error(Status::Error(400, "Sticker set name must be non-empty"));
-  }
-
-  if (stickers.empty()) {
-    return promise.set_error(Status::Error(400, "At least 1 sticker must be specified"));
-  }
-
-  if (has_text_color && sticker_type != StickerType::CustomEmoji) {
-    return promise.set_error(Status::Error(400, "Only custom emoji stickers support repainting"));
-  }
-
-  vector<FileId> file_ids;
-  file_ids.reserve(stickers.size());
-  vector<FileId> local_file_ids;
-  vector<FileId> url_file_ids;
-  for (auto &sticker : stickers) {
-    TRY_RESULT_PROMISE(promise, file_info, prepare_input_sticker(sticker.get(), sticker_type));
-    auto file_id = std::get<0>(file_info);
-    auto is_url = std::get<1>(file_info);
-    auto is_local = std::get<2>(file_info);
-
-    file_ids.push_back(file_id);
-    if (is_url) {
-      url_file_ids.push_back(file_id);
-    } else if (is_local) {
-      local_file_ids.push_back(file_id);
-    }
-  }
-
-  auto pending_new_sticker_set = make_unique<PendingNewStickerSet>();
-  pending_new_sticker_set->user_id_ = user_id;
-  pending_new_sticker_set->title_ = std::move(title);
-  pending_new_sticker_set->short_name_ = short_name;
-  pending_new_sticker_set->sticker_type_ = sticker_type;
-  pending_new_sticker_set->has_text_color_ = has_text_color;
-  pending_new_sticker_set->file_ids_ = std::move(file_ids);
-  pending_new_sticker_set->stickers_ = std::move(stickers);
-  pending_new_sticker_set->software_ = std::move(software);
-  pending_new_sticker_set->promise_ = std::move(promise);
-
-  auto &multipromise = pending_new_sticker_set->upload_files_multipromise_;
-
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || pending_new_sticker_sets_.count(random_id) > 0);
-  pending_new_sticker_sets_[random_id] = std::move(pending_new_sticker_set);
-
-  multipromise.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), random_id](Result<Unit> result) {
-    send_closure_later(actor_id, &StickersManager::on_new_stickers_uploaded, random_id, std::move(result));
-  }));
-  auto lock_promise = multipromise.get_promise();
-
-  for (auto file_id : url_file_ids) {
-    do_upload_sticker_file(user_id, {file_id, FileManager::get_internal_upload_id()}, nullptr,
-                           multipromise.get_promise());
-  }
-
-  for (auto file_id : local_file_ids) {
-    upload_sticker_file(user_id, file_id, multipromise.get_promise());
-  }
-
-  lock_promise.set_value(Unit());
-}
-
-void StickersManager::upload_sticker_file(UserId user_id, FileId file_id, Promise<Unit> &&promise) {
-  if (td_->file_manager_->get_file_view(file_id).get_type() == FileType::Sticker) {
-    CHECK(get_input_media(file_id, nullptr, nullptr, string()) == nullptr);
-  } else {
-    CHECK(td_->documents_manager_->get_input_media(file_id, nullptr, nullptr) == nullptr);
-  }
-
-  FileUploadId file_upload_id{file_id, FileManager::get_internal_upload_id()};
-  CHECK(file_upload_id.is_valid());
-  being_uploaded_files_[file_upload_id] = {user_id, std::move(promise)};
-  LOG(INFO) << "Ask to upload sticker " << file_upload_id;
-  td_->file_manager_->upload(file_upload_id, upload_sticker_file_callback_, 2, 0);
-}
-
-void StickersManager::on_upload_sticker_file(FileUploadId file_upload_id,
-                                             telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  LOG(INFO) << "Sticker " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto user_id = it->second.first;
-  auto promise = std::move(it->second.second);
-  being_uploaded_files_.erase(it);
-
-  do_upload_sticker_file(user_id, file_upload_id, std::move(input_file), std::move(promise));
-}
-
-void StickersManager::on_upload_sticker_file_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(WARNING) << "Sticker " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto promise = std::move(it->second.second);
-  being_uploaded_files_.erase(it);
-
-  promise.set_error(Status::Error(status.code() > 0 ? status.code() : 500,
-                                  status.message()));  // TODO CHECK that status has always a code
-}
-
-void StickersManager::do_upload_sticker_file(UserId user_id, FileUploadId file_upload_id,
-                                             telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-                                             Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  DialogId dialog_id(user_id);
-  auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-  if (input_peer == nullptr) {
-    if (input_file != nullptr) {
-      td_->file_manager_->cancel_upload(file_upload_id);
-    }
-    return promise.set_error(Status::Error(400, "Have no access to the user"));
-  }
-
-  FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  FileType file_type = file_view.get_type();
-
-  bool had_input_file = input_file != nullptr;
-  auto input_media =
-      file_type == FileType::Sticker
-          ? get_input_media(file_upload_id.get_file_id(), std::move(input_file), nullptr, string())
-          : td_->documents_manager_->get_input_media(file_upload_id.get_file_id(), std::move(input_file), nullptr);
-  CHECK(input_media != nullptr);
-  if (had_input_file && !FileManager::extract_was_uploaded(input_media)) {
-    // if we had InputFile, but has failed to use it for input_media, then we need to immediately cancel file upload
-    // so the next upload with the same file can succeed
-    td_->file_manager_->cancel_upload(file_upload_id);
-  }
-
-  td_->create_handler<UploadStickerFileQuery>(std::move(promise))
-      ->send(std::move(input_peer), file_upload_id, !had_input_file, std::move(input_media));
-}
-
-void StickersManager::on_uploaded_sticker_file(FileUploadId file_upload_id, bool is_url,
-                                               tl_object_ptr<telegram_api::MessageMedia> media,
-                                               Promise<Unit> &&promise) {
-  CHECK(media != nullptr);
-  LOG(INFO) << "Receive uploaded sticker file " << to_string(media);
-  if (media->get_id() != telegram_api::messageMediaDocument::ID) {
-    td_->file_manager_->delete_partial_remote_location(file_upload_id);
-    return promise.set_error(Status::Error(400, "Can't upload sticker file: wrong file type"));
-  }
-
-  auto message_document = move_tl_object_as<telegram_api::messageMediaDocument>(media);
-  auto document_ptr = std::move(message_document->document_);
-  int32 document_id = document_ptr->get_id();
-  if (document_id == telegram_api::documentEmpty::ID) {
-    td_->file_manager_->delete_partial_remote_location(file_upload_id);
-    return promise.set_error(Status::Error(400, "Can't upload sticker file: empty file"));
-  }
-  CHECK(document_id == telegram_api::document::ID);
-
-  auto file_id = file_upload_id.get_file_id();
-  FileView file_view = td_->file_manager_->get_file_view(file_id);
-  FileType file_type = file_view.get_type();
-  auto expected_document_type = file_type == FileType::Sticker ? Document::Type::Sticker : Document::Type::General;
-
-  auto parsed_document = td_->documents_manager_->on_get_document(
-      move_tl_object_as<telegram_api::document>(document_ptr), DialogId(), false);
-  if (parsed_document.type != expected_document_type) {
-    if (is_url && expected_document_type == Document::Type::General &&
-        parsed_document.type == Document::Type::Sticker) {
-      // uploaded by a URL WEBP sticker
-      // re-register as document
-      FileView sticker_file_view = td_->file_manager_->get_file_view(parsed_document.file_id);
-      const auto *full_remote_location = sticker_file_view.get_full_remote_location();
-      CHECK(full_remote_location != nullptr);
-      auto remote_location = *full_remote_location;
-      CHECK(remote_location.is_common());
-      remote_location.file_type_ = FileType::Document;
-      auto document_file_id =
-          td_->file_manager_->register_remote(std::move(remote_location), FileLocationSource::FromServer, DialogId(),
-                                              sticker_file_view.size(), 0, sticker_file_view.remote_name());
-      CHECK(document_file_id.is_valid());
-      td_->documents_manager_->create_document(document_file_id, string(), PhotoSize(), "sticker.webp", "image/webp",
-                                               false);
-      td_->documents_manager_->merge_documents(document_file_id, file_id);
-      td_->file_manager_->cancel_upload(file_upload_id);
-      return promise.set_value(Unit());
-    }
-    td_->file_manager_->delete_partial_remote_location(file_upload_id);
-    return promise.set_error(Status::Error(400, "Wrong file type"));
-  }
-
-  if (parsed_document.file_id != file_id) {
-    if (file_type == FileType::Sticker) {
-      merge_stickers(parsed_document.file_id, file_id);
-    } else {
-      // must not delete the old document, because the file_id could be used for simultaneous URL uploads
-      td_->documents_manager_->merge_documents(parsed_document.file_id, file_id);
-    }
-  }
-  td_->file_manager_->cancel_upload(file_upload_id);
-  promise.set_value(Unit());
-}
-
-void StickersManager::on_new_stickers_uploaded(int64 random_id, Result<Unit> result) {
-  G()->ignore_result_if_closing(result);
-
-  auto it = pending_new_sticker_sets_.find(random_id);
-  CHECK(it != pending_new_sticker_sets_.end());
-
-  auto pending_new_sticker_set = std::move(it->second);
-  CHECK(pending_new_sticker_set != nullptr);
-
-  pending_new_sticker_sets_.erase(it);
-
-  if (result.is_error()) {
-    pending_new_sticker_set->promise_.set_error(result.move_as_error());
-    return;
-  }
-
-  CHECK(pending_new_sticker_set->upload_files_multipromise_.promise_count() == 0);
-
-  auto &promise = pending_new_sticker_set->promise_;
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(pending_new_sticker_set->user_id_));
-
-  StickerType sticker_type = pending_new_sticker_set->sticker_type_;
-
-  auto sticker_count = pending_new_sticker_set->stickers_.size();
-  vector<tl_object_ptr<telegram_api::inputStickerSetItem>> input_stickers;
-  input_stickers.reserve(sticker_count);
-  for (size_t i = 0; i < sticker_count; i++) {
-    TRY_RESULT_PROMISE(
-        promise, input_sticker,
-        get_input_sticker(pending_new_sticker_set->stickers_[i].get(), pending_new_sticker_set->file_ids_[i]));
-    input_stickers.push_back(std::move(input_sticker));
-  }
-
-  td_->create_handler<CreateNewStickerSetQuery>(std::move(promise))
-      ->send(std::move(input_user), pending_new_sticker_set->title_, pending_new_sticker_set->short_name_, sticker_type,
-             pending_new_sticker_set->has_text_color_, std::move(input_stickers), pending_new_sticker_set->software_);
-}
-
-StickerFormat StickersManager::guess_sticker_set_format(const StickerSet *sticker_set) const {
-  auto format = StickerFormat::Unknown;
-  for (auto sticker_id : sticker_set->sticker_ids_) {
-    const auto *s = get_sticker(sticker_id);
-    if (format == StickerFormat::Unknown) {
-      format = s->format_;
-    } else if (format != s->format_) {
-      return StickerFormat::Unknown;
-    }
-  }
-  return format;
-}
-
-void StickersManager::add_sticker_to_set(UserId user_id, string short_name,
-                                         td_api::object_ptr<td_api::inputSticker> &&sticker,
-                                         td_api::object_ptr<td_api::InputFile> &&old_sticker, Promise<Unit> &&promise) {
-  bool is_bot = td_->auth_manager_->is_bot();
-  if (!is_bot) {
-    user_id = td_->user_manager_->get_my_id();
-  }
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  short_name = clean_username(strip_empty_characters(short_name, MAX_STICKER_SET_SHORT_NAME_LENGTH));
-  if (short_name.empty()) {
-    return promise.set_error(Status::Error(400, "Sticker set name must be non-empty"));
-  }
-
-  const StickerSet *sticker_set = get_sticker_set(short_name_to_sticker_set_id_.get(short_name));
-  if (sticker_set != nullptr && sticker_set->was_loaded_) {
-    return do_add_sticker_to_set(user_id, short_name, std::move(sticker), std::move(old_sticker), std::move(promise));
-  }
-
-  do_reload_sticker_set(StickerSetId(), make_tl_object<telegram_api::inputStickerSetShortName>(short_name), 0,
-                        PromiseCreator::lambda([actor_id = actor_id(this), user_id, short_name,
-                                                sticker = std::move(sticker), old_sticker = std::move(old_sticker),
-                                                promise = std::move(promise)](Result<Unit> result) mutable {
-                          if (result.is_error()) {
-                            promise.set_error(result.move_as_error());
-                          } else {
-                            send_closure(actor_id, &StickersManager::do_add_sticker_to_set, user_id,
-                                         std::move(short_name), std::move(sticker), std::move(old_sticker),
-                                         std::move(promise));
-                          }
-                        }),
-                        "add_sticker_to_set");
-}
-
-void StickersManager::do_add_sticker_to_set(UserId user_id, string short_name,
-                                            td_api::object_ptr<td_api::inputSticker> &&sticker,
-                                            td_api::object_ptr<td_api::InputFile> &&old_sticker,
-                                            Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  const StickerSet *sticker_set = get_sticker_set(short_name_to_sticker_set_id_.get(short_name));
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    return promise.set_error(Status::Error(400, "Sticker set not found"));
-  }
-  telegram_api::object_ptr<telegram_api::inputDocument> input_document;
-  if (old_sticker != nullptr) {
-    TRY_RESULT_PROMISE(promise, sticker_input_document, get_sticker_input_document(old_sticker));
-    input_document = std::move(sticker_input_document.input_document_);
-  }
-
-  if (sticker != nullptr && sticker->format_ == nullptr) {
-    auto format = guess_sticker_set_format(sticker_set);
-    if (format != StickerFormat::Unknown) {
-      sticker->format_ = get_sticker_format_object(format);
-    }
-  }
-  TRY_RESULT_PROMISE(promise, file_info, prepare_input_sticker(sticker.get(), sticker_set->sticker_type_));
-  auto file_id = std::get<0>(file_info);
-  auto is_url = std::get<1>(file_info);
-  auto is_local = std::get<2>(file_info);
-
-  auto pending_add_sticker_to_set = make_unique<PendingAddStickerToSet>();
-  pending_add_sticker_to_set->short_name_ = short_name;
-  pending_add_sticker_to_set->file_id_ = file_id;
-  pending_add_sticker_to_set->sticker_ = std::move(sticker);
-  pending_add_sticker_to_set->input_document_ = std::move(input_document);
-  pending_add_sticker_to_set->promise_ = std::move(promise);
-
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || pending_add_sticker_to_sets_.count(random_id) > 0);
-  pending_add_sticker_to_sets_[random_id] = std::move(pending_add_sticker_to_set);
-
-  auto on_upload_promise = PromiseCreator::lambda([random_id](Result<Unit> result) {
-    send_closure(G()->stickers_manager(), &StickersManager::on_added_sticker_uploaded, random_id, std::move(result));
-  });
-
-  if (is_url) {
-    do_upload_sticker_file(user_id, {file_id, FileManager::get_internal_upload_id()}, nullptr,
-                           std::move(on_upload_promise));
-  } else if (is_local) {
-    upload_sticker_file(user_id, file_id, std::move(on_upload_promise));
-  } else {
-    on_upload_promise.set_value(Unit());
-  }
-}
-
-void StickersManager::on_added_sticker_uploaded(int64 random_id, Result<Unit> result) {
-  G()->ignore_result_if_closing(result);
-
-  auto it = pending_add_sticker_to_sets_.find(random_id);
-  CHECK(it != pending_add_sticker_to_sets_.end());
-
-  auto pending_add_sticker_to_set = std::move(it->second);
-  CHECK(pending_add_sticker_to_set != nullptr);
-
-  pending_add_sticker_to_sets_.erase(it);
-
-  if (result.is_error()) {
-    pending_add_sticker_to_set->promise_.set_error(result.move_as_error());
-    return;
-  }
-  TRY_RESULT_PROMISE(
-      pending_add_sticker_to_set->promise_, input_sticker,
-      get_input_sticker(pending_add_sticker_to_set->sticker_.get(), pending_add_sticker_to_set->file_id_));
-
-  td_->create_handler<AddStickerToSetQuery>(std::move(pending_add_sticker_to_set->promise_))
-      ->send(pending_add_sticker_to_set->short_name_, std::move(input_sticker),
-             std::move(pending_add_sticker_to_set->input_document_));
-}
-
-void StickersManager::set_sticker_set_thumbnail(UserId user_id, string short_name,
-                                                td_api::object_ptr<td_api::InputFile> &&thumbnail, StickerFormat format,
-                                                Promise<Unit> &&promise) {
-  bool is_bot = td_->auth_manager_->is_bot();
-  if (!is_bot) {
-    user_id = td_->user_manager_->get_my_id();
-  }
-
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(user_id));
-
-  short_name = clean_username(strip_empty_characters(short_name, MAX_STICKER_SET_SHORT_NAME_LENGTH));
-  if (short_name.empty()) {
-    return promise.set_error(Status::Error(400, "Sticker set name must be non-empty"));
-  }
-
-  const StickerSet *sticker_set = get_sticker_set(short_name_to_sticker_set_id_.get(short_name));
-  if (sticker_set != nullptr && sticker_set->was_loaded_) {
-    return do_set_sticker_set_thumbnail(user_id, short_name, std::move(thumbnail), format, std::move(promise));
-  }
-
-  do_reload_sticker_set(
-      StickerSetId(), make_tl_object<telegram_api::inputStickerSetShortName>(short_name), 0,
-      PromiseCreator::lambda([actor_id = actor_id(this), user_id, short_name, thumbnail = std::move(thumbnail), format,
-                              promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &StickersManager::do_set_sticker_set_thumbnail, user_id, std::move(short_name),
-                       std::move(thumbnail), format, std::move(promise));
-        }
-      }),
-      "set_sticker_set_thumbnail");
-}
-
-void StickersManager::do_set_sticker_set_thumbnail(UserId user_id, string short_name,
-                                                   td_api::object_ptr<td_api::InputFile> &&thumbnail,
-                                                   StickerFormat format, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  const StickerSet *sticker_set = get_sticker_set(short_name_to_sticker_set_id_.get(short_name));
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    return promise.set_error(Status::Error(400, "Sticker set not found"));
-  }
-  if (sticker_set->sticker_type_ == StickerType::CustomEmoji) {
-    return promise.set_error(
-        Status::Error(400, "The method can't be used to set thumbnail of custom emoji sticker sets"));
-  }
-  if (format == StickerFormat::Unknown) {
-    format = guess_sticker_set_format(sticker_set);
-  }
-
-  TRY_RESULT_PROMISE(promise, file_info, prepare_input_file(thumbnail, format, sticker_set->sticker_type_, true));
-  auto file_id = std::get<0>(file_info);
-  auto is_url = std::get<1>(file_info);
-  auto is_local = std::get<2>(file_info);
-
-  if (!file_id.is_valid()) {
-    td_->create_handler<SetStickerSetThumbnailQuery>(std::move(promise))
-        ->send(short_name, telegram_api::make_object<telegram_api::inputDocumentEmpty>());
-    return;
-  }
-
-  auto pending_set_sticker_set_thumbnail = make_unique<PendingSetStickerSetThumbnail>();
-  pending_set_sticker_set_thumbnail->short_name_ = short_name;
-  pending_set_sticker_set_thumbnail->file_id_ = file_id;
-  pending_set_sticker_set_thumbnail->promise_ = std::move(promise);
-
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || pending_set_sticker_set_thumbnails_.count(random_id) > 0);
-  pending_set_sticker_set_thumbnails_[random_id] = std::move(pending_set_sticker_set_thumbnail);
-
-  auto on_upload_promise = PromiseCreator::lambda([random_id](Result<Unit> result) {
-    send_closure(G()->stickers_manager(), &StickersManager::on_sticker_set_thumbnail_uploaded, random_id,
-                 std::move(result));
-  });
-
-  if (is_url) {
-    do_upload_sticker_file(user_id, {file_id, FileManager::get_internal_upload_id()}, nullptr,
-                           std::move(on_upload_promise));
-  } else if (is_local) {
-    upload_sticker_file(user_id, file_id, std::move(on_upload_promise));
-  } else {
-    on_upload_promise.set_value(Unit());
-  }
-}
-
-void StickersManager::on_sticker_set_thumbnail_uploaded(int64 random_id, Result<Unit> result) {
-  G()->ignore_result_if_closing(result);
-
-  auto it = pending_set_sticker_set_thumbnails_.find(random_id);
-  CHECK(it != pending_set_sticker_set_thumbnails_.end());
-
-  auto pending_set_sticker_set_thumbnail = std::move(it->second);
-  CHECK(pending_set_sticker_set_thumbnail != nullptr);
-
-  pending_set_sticker_set_thumbnails_.erase(it);
-
-  if (result.is_error()) {
-    pending_set_sticker_set_thumbnail->promise_.set_error(result.move_as_error());
-    return;
-  }
-
-  FileView file_view = td_->file_manager_->get_file_view(pending_set_sticker_set_thumbnail->file_id_);
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location == nullptr) {
-    return pending_set_sticker_set_thumbnail->promise_.set_error(Status::Error(500, "Failed to upload the file"));
-  }
-
-  td_->create_handler<SetStickerSetThumbnailQuery>(std::move(pending_set_sticker_set_thumbnail->promise_))
-      ->send(pending_set_sticker_set_thumbnail->short_name_, main_remote_location->as_input_document());
-}
-
-void StickersManager::set_custom_emoji_sticker_set_thumbnail(string short_name, CustomEmojiId custom_emoji_id,
-                                                             Promise<Unit> &&promise) {
-  short_name = clean_username(strip_empty_characters(short_name, MAX_STICKER_SET_SHORT_NAME_LENGTH));
-  if (short_name.empty()) {
-    return promise.set_error(Status::Error(400, "Sticker set name must be non-empty"));
-  }
-
-  const StickerSet *sticker_set = get_sticker_set(short_name_to_sticker_set_id_.get(short_name));
-  if (sticker_set != nullptr && sticker_set->was_loaded_) {
-    return do_set_custom_emoji_sticker_set_thumbnail(short_name, custom_emoji_id, std::move(promise));
-  }
-
-  do_reload_sticker_set(StickerSetId(), make_tl_object<telegram_api::inputStickerSetShortName>(short_name), 0,
-                        PromiseCreator::lambda([actor_id = actor_id(this), short_name, custom_emoji_id,
-                                                promise = std::move(promise)](Result<Unit> result) mutable {
-                          if (result.is_error()) {
-                            promise.set_error(result.move_as_error());
-                          } else {
-                            send_closure(actor_id, &StickersManager::do_set_custom_emoji_sticker_set_thumbnail,
-                                         std::move(short_name), custom_emoji_id, std::move(promise));
-                          }
-                        }),
-                        "set_custom_emoji_sticker_set_thumbnail");
-}
-
-void StickersManager::do_set_custom_emoji_sticker_set_thumbnail(string short_name, CustomEmojiId custom_emoji_id,
-                                                                Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  const StickerSet *sticker_set = get_sticker_set(short_name_to_sticker_set_id_.get(short_name));
-  if (sticker_set == nullptr || !sticker_set->was_loaded_) {
-    return promise.set_error(Status::Error(400, "Sticker set not found"));
-  }
-  if (sticker_set->sticker_type_ != StickerType::CustomEmoji) {
-    return promise.set_error(
-        Status::Error(400, "The method can be used to set thumbnail only for custom emoji sticker sets"));
-  }
-
-  td_->create_handler<SetCustomEmojiStickerSetThumbnailQuery>(std::move(promise))->send(short_name, custom_emoji_id);
-}
-
-void StickersManager::set_sticker_set_title(string short_name, string title, Promise<Unit> &&promise) {
-  short_name = clean_username(strip_empty_characters(short_name, MAX_STICKER_SET_SHORT_NAME_LENGTH));
-  if (short_name.empty()) {
-    return promise.set_error(Status::Error(400, "Sticker set name must be non-empty"));
-  }
-
-  title = strip_empty_characters(title, MAX_STICKER_SET_TITLE_LENGTH);
-  if (title.empty()) {
-    return promise.set_error(Status::Error(400, "Sticker set title must be non-empty"));
-  }
-
-  td_->create_handler<SetStickerSetTitleQuery>(std::move(promise))->send(short_name, title);
-}
-
-void StickersManager::delete_sticker_set(string short_name, Promise<Unit> &&promise) {
-  short_name = clean_username(strip_empty_characters(short_name, MAX_STICKER_SET_SHORT_NAME_LENGTH));
-  if (short_name.empty()) {
-    return promise.set_error(Status::Error(400, "Sticker set name must be non-empty"));
-  }
-
-  td_->create_handler<DeleteStickerSetQuery>(std::move(promise))->send(short_name);
-}
-
-Result<StickersManager::StickerInputDocument> StickersManager::get_sticker_input_document(
-    const tl_object_ptr<td_api::InputFile> &sticker) const {
-  TRY_RESULT(file_id, td_->file_manager_->get_input_file_id(FileType::Sticker, sticker, DialogId(), false, false));
-
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location == nullptr || !main_remote_location->is_document() || main_remote_location->is_web()) {
-    return Status::Error(400, "Wrong sticker file specified");
-  }
-
-  StickerInputDocument result;
-  const Sticker *s = get_sticker(file_id);
-  if (s != nullptr && s->set_id_.is_valid()) {
-    const StickerSet *sticker_set = get_sticker_set(s->set_id_);
-    if (sticker_set != nullptr) {
-      result.sticker_set_unique_name_ = sticker_set->short_name_;
-    } else {
-      result.sticker_set_unique_name_ = to_string(s->set_id_.get());
-    }
-  }
-  result.input_document_ = main_remote_location->as_input_document();
-  return std::move(result);
-}
-
-void StickersManager::set_sticker_position_in_set(const td_api::object_ptr<td_api::InputFile> &sticker, int32 position,
-                                                  Promise<Unit> &&promise) {
-  if (position < 0) {
-    return promise.set_error(Status::Error(400, "Wrong sticker position specified"));
-  }
-
-  TRY_RESULT_PROMISE(promise, input_document, get_sticker_input_document(sticker));
-
-  td_->create_handler<SetStickerPositionQuery>(std::move(promise))
-      ->send(input_document.sticker_set_unique_name_, std::move(input_document.input_document_), position);
-}
-
-void StickersManager::remove_sticker_from_set(const td_api::object_ptr<td_api::InputFile> &sticker,
-                                              Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_document, get_sticker_input_document(sticker));
-
-  td_->create_handler<DeleteStickerFromSetQuery>(std::move(promise))
-      ->send(input_document.sticker_set_unique_name_, std::move(input_document.input_document_));
-}
-
-void StickersManager::set_sticker_emojis(const td_api::object_ptr<td_api::InputFile> &sticker, const string &emojis,
-                                         Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_document, get_sticker_input_document(sticker));
-
-  td_->create_handler<ChangeStickerQuery>(std::move(promise))
-      ->send(input_document.sticker_set_unique_name_, std::move(input_document.input_document_), true, emojis,
-             StickerMaskPosition(), false, string());
-}
-
-void StickersManager::set_sticker_keywords(const td_api::object_ptr<td_api::InputFile> &sticker,
-                                           vector<string> &&keywords, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_document, get_sticker_input_document(sticker));
-
-  for (auto &keyword : keywords) {
-    for (auto &c : keyword) {
-      if (c == ',' || c == '\n') {
-        c = ' ';
-      }
-    }
-  }
-  td_->create_handler<ChangeStickerQuery>(std::move(promise))
-      ->send(input_document.sticker_set_unique_name_, std::move(input_document.input_document_), false, string(),
-             StickerMaskPosition(), true, implode(keywords, ','));
-}
-
-void StickersManager::set_sticker_mask_position(const td_api::object_ptr<td_api::InputFile> &sticker,
-                                                td_api::object_ptr<td_api::maskPosition> &&mask_position,
-                                                Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_document, get_sticker_input_document(sticker));
-  td_->create_handler<ChangeStickerQuery>(std::move(promise))
-      ->send(input_document.sticker_set_unique_name_, std::move(input_document.input_document_), false, string(),
-             StickerMaskPosition(mask_position), false, string());
-}
-
-void StickersManager::get_created_sticker_sets(StickerSetId offset_sticker_set_id, int32 limit,
-                                               Promise<td_api::object_ptr<td_api::stickerSets>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), promise = std::move(promise)](
-          Result<telegram_api::object_ptr<telegram_api::messages_myStickers>> r_my_stickers) mutable {
-        send_closure(actor_id, &StickersManager::on_get_created_sticker_sets, std::move(r_my_stickers),
-                     std::move(promise));
-      });
-  td_->create_handler<GetMyStickersQuery>(std::move(query_promise))->send(offset_sticker_set_id, limit);
-}
-
-void StickersManager::on_get_created_sticker_sets(
-    Result<telegram_api::object_ptr<telegram_api::messages_myStickers>> r_my_stickers,
-    Promise<td_api::object_ptr<td_api::stickerSets>> &&promise) {
-  G()->ignore_result_if_closing(r_my_stickers);
-  if (r_my_stickers.is_error()) {
-    return promise.set_error(r_my_stickers.move_as_error());
-  }
-  auto my_stickers = r_my_stickers.move_as_ok();
-  auto total_count = my_stickers->count_;
-  vector<StickerSetId> sticker_set_ids;
-  for (auto &sticker_set_covered : my_stickers->sets_) {
-    auto sticker_set_id =
-        on_get_sticker_set_covered(std::move(sticker_set_covered), false, "on_get_created_sticker_sets");
-    if (sticker_set_id.is_valid()) {
-      auto sticker_set = get_sticker_set(sticker_set_id);
-      CHECK(sticker_set != nullptr);
-      update_sticker_set(sticker_set, "on_get_created_sticker_sets");
-
-      if (!td::contains(sticker_set_ids, sticker_set_id) && sticker_set->is_created_) {
-        sticker_set_ids.push_back(sticker_set_id);
-      }
-    }
-  }
-  if (static_cast<int32>(sticker_set_ids.size()) > total_count) {
-    LOG(ERROR) << "Expected total of " << total_count << " owned sticker sets, but " << sticker_set_ids.size()
-               << " received";
-    total_count = static_cast<int32>(sticker_set_ids.size());
-  }
-  send_update_installed_sticker_sets();
-  promise.set_value(get_sticker_sets_object(total_count, sticker_set_ids, 1));
-}
-
-vector<FileId> StickersManager::get_attached_sticker_file_ids(const vector<int32> &int_file_ids) {
-  vector<FileId> result;
-
-  result.reserve(int_file_ids.size());
-  for (auto int_file_id : int_file_ids) {
-    FileId file_id(int_file_id, 0);
-    const Sticker *s = get_sticker(file_id);
-    if (s == nullptr) {
-      LOG(WARNING) << "Can't find sticker " << file_id;
-      continue;
-    }
-    if (!s->set_id_.is_valid()) {
-      // only stickers from sticker sets can be attached to files
-      continue;
-    }
-
-    auto file_view = td_->file_manager_->get_file_view(file_id);
-    CHECK(!file_view.empty());
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    if (full_remote_location->is_web()) {
-      LOG(ERROR) << "Sticker " << file_id << " is web";
-      continue;
-    }
-    if (!full_remote_location->is_document()) {
-      LOG(ERROR) << "Sticker " << file_id << " is encrypted";
-      continue;
-    }
-    result.push_back(file_id);
-
-    if (!td_->auth_manager_->is_bot() && s->type_ != StickerType::CustomEmoji) {
-      add_recent_sticker_by_id(true, file_id);
-    }
-  }
-
-  return result;
-}
-
-int64 StickersManager::get_sticker_sets_hash(const vector<StickerSetId> &sticker_set_ids) const {
-  vector<uint64> numbers;
-  numbers.reserve(sticker_set_ids.size());
-  for (auto sticker_set_id : sticker_set_ids) {
-    const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    CHECK(sticker_set != nullptr);
-    CHECK(sticker_set->is_inited_);
-    numbers.push_back(sticker_set->hash_);
-  }
-  return get_vector_hash(numbers);
-}
-
-int64 StickersManager::get_featured_sticker_sets_hash(StickerType sticker_type) const {
-  auto type = static_cast<int32>(sticker_type);
-  vector<uint64> numbers;
-  numbers.reserve(featured_sticker_set_ids_[type].size() * 2);
-  for (auto sticker_set_id : featured_sticker_set_ids_[type]) {
-    const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-    CHECK(sticker_set != nullptr);
-    CHECK(sticker_set->is_inited_);
-
-    numbers.push_back(sticker_set_id.get());
-
-    if (!sticker_set->is_viewed_) {
-      numbers.push_back(1);
-    }
-  }
-  return get_vector_hash(numbers);
-}
-
-vector<int64> StickersManager::convert_sticker_set_ids(const vector<StickerSetId> &sticker_set_ids) {
-  return transform(sticker_set_ids, [](StickerSetId sticker_set_id) { return sticker_set_id.get(); });
-}
-
-vector<StickerSetId> StickersManager::convert_sticker_set_ids(const vector<int64> &sticker_set_ids) {
-  return transform(sticker_set_ids, [](int64 sticker_set_id) { return StickerSetId(sticker_set_id); });
-}
-
-td_api::object_ptr<td_api::updateInstalledStickerSets> StickersManager::get_update_installed_sticker_sets_object(
-    StickerType sticker_type) const {
-  auto type = static_cast<int32>(sticker_type);
-  return td_api::make_object<td_api::updateInstalledStickerSets>(
-      get_sticker_type_object(sticker_type), convert_sticker_set_ids(installed_sticker_set_ids_[type]));
-}
-
-void StickersManager::send_update_installed_sticker_sets(bool from_database) {
-  for (int32 type = 0; type < MAX_STICKER_TYPE; type++) {
-    auto sticker_type = static_cast<StickerType>(type);
-    if (need_update_installed_sticker_sets_[type]) {
-      need_update_installed_sticker_sets_[type] = false;
-      if (are_installed_sticker_sets_loaded_[type]) {
-        installed_sticker_sets_hash_[type] = get_sticker_sets_hash(installed_sticker_set_ids_[type]);
-        send_closure(G()->td(), &Td::send_update, get_update_installed_sticker_sets_object(sticker_type));
-
-        if (G()->use_sqlite_pmc() && !from_database && !G()->close_flag()) {
-          LOG(INFO) << "Save installed " << sticker_type << " sticker sets to database";
-          StickerSetListLogEvent log_event(installed_sticker_set_ids_[type], false);
-          G()->td_db()->get_sqlite_pmc()->set(PSTRING() << "sss" << type, log_event_store(log_event).as_slice().str(),
-                                              Auto());
-        }
-      }
-    }
-  }
-}
-
-size_t StickersManager::get_max_featured_sticker_count(StickerType sticker_type) {
-  switch (sticker_type) {
-    case StickerType::Regular:
-      return 5;
-    case StickerType::Mask:
-      return 5;
-    case StickerType::CustomEmoji:
-      return 16;
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-Slice StickersManager::get_featured_sticker_suffix(StickerType sticker_type) {
-  switch (sticker_type) {
-    case StickerType::Regular:
-      return Slice();
-    case StickerType::Mask:
-      return Slice("1");
-    case StickerType::CustomEmoji:
-      return Slice("2");
-    default:
-      UNREACHABLE();
-      return Slice();
-  }
-}
-
-td_api::object_ptr<td_api::trendingStickerSets> StickersManager::get_trending_sticker_sets_object(
-    StickerType sticker_type, const vector<StickerSetId> &sticker_set_ids) const {
-  auto type = static_cast<int32>(sticker_type);
-  auto total_count = static_cast<int32>(featured_sticker_set_ids_[type].size()) +
-                     (old_featured_sticker_set_count_[type] == -1 ? 1 : old_featured_sticker_set_count_[type]);
-
-  vector<tl_object_ptr<td_api::stickerSetInfo>> result;
-  result.reserve(sticker_set_ids.size());
-  for (auto sticker_set_id : sticker_set_ids) {
-    auto sticker_set_info = get_sticker_set_info_object(sticker_set_id, get_max_featured_sticker_count(sticker_type),
-                                                        are_featured_sticker_sets_premium_[type]);
-    if (sticker_set_info->size_ != 0) {
-      result.push_back(std::move(sticker_set_info));
-    }
-  }
-
-  auto result_size = narrow_cast<int32>(result.size());
-  CHECK(total_count >= result_size);
-  return td_api::make_object<td_api::trendingStickerSets>(total_count, std::move(result),
-                                                          are_featured_sticker_sets_premium_[type]);
-}
-
-td_api::object_ptr<td_api::updateTrendingStickerSets> StickersManager::get_update_trending_sticker_sets_object(
-    StickerType sticker_type) const {
-  auto type = static_cast<int32>(sticker_type);
-  return td_api::make_object<td_api::updateTrendingStickerSets>(
-      get_sticker_type_object(sticker_type),
-      get_trending_sticker_sets_object(sticker_type, featured_sticker_set_ids_[type]));
-}
-
-void StickersManager::send_update_featured_sticker_sets(StickerType sticker_type) {
-  auto type = static_cast<int32>(sticker_type);
-  if (need_update_featured_sticker_sets_[type]) {
-    need_update_featured_sticker_sets_[type] = false;
-    featured_sticker_sets_hash_[type] = get_featured_sticker_sets_hash(sticker_type);
-
-    send_closure(G()->td(), &Td::send_update, get_update_trending_sticker_sets_object(sticker_type));
-  }
-}
-
-void StickersManager::reload_recent_stickers(bool is_attached, bool force) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto &next_load_time = next_recent_stickers_load_time_[is_attached];
-  if (!td_->auth_manager_->is_bot() && next_load_time >= 0 && (next_load_time < Time::now() || force)) {
-    LOG_IF(INFO, force) << "Reload recent " << (is_attached ? "attached " : "") << "stickers";
-    next_load_time = -1;
-    td_->create_handler<GetRecentStickersQuery>()->send(false, is_attached, recent_stickers_hash_[is_attached]);
-  }
-}
-
-void StickersManager::repair_recent_stickers(bool is_attached, Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Bots have no recent stickers"));
-  }
-
-  repair_recent_stickers_queries_[is_attached].push_back(std::move(promise));
-  if (repair_recent_stickers_queries_[is_attached].size() == 1u) {
-    td_->create_handler<GetRecentStickersQuery>()->send(true, is_attached, 0);
-  }
-}
-
-vector<FileId> StickersManager::get_recent_stickers(bool is_attached, Promise<Unit> &&promise) {
-  if (!are_recent_stickers_loaded_[is_attached]) {
-    load_recent_stickers(is_attached, std::move(promise));
-    return {};
-  }
-  reload_recent_stickers(is_attached, false);
-
-  promise.set_value(Unit());
-  return recent_sticker_ids_[is_attached];
-}
-
-void StickersManager::load_recent_stickers(bool is_attached, Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    are_recent_stickers_loaded_[is_attached] = true;
-  }
-  if (are_recent_stickers_loaded_[is_attached]) {
-    promise.set_value(Unit());
-    return;
-  }
-  load_recent_stickers_queries_[is_attached].push_back(std::move(promise));
-  if (load_recent_stickers_queries_[is_attached].size() == 1u) {
-    if (G()->use_sqlite_pmc()) {
-      LOG(INFO) << "Trying to load recent " << (is_attached ? "attached " : "") << "stickers from database";
-      G()->td_db()->get_sqlite_pmc()->get(
-          is_attached ? "ssr1" : "ssr0", PromiseCreator::lambda([is_attached](string value) {
-            send_closure(G()->stickers_manager(), &StickersManager::on_load_recent_stickers_from_database, is_attached,
-                         std::move(value));
-          }));
-    } else {
-      LOG(INFO) << "Trying to load recent " << (is_attached ? "attached " : "") << "stickers from server";
-      reload_recent_stickers(is_attached, true);
-    }
-  }
-}
-
-void StickersManager::on_load_recent_stickers_from_database(bool is_attached, string value) {
-  if (G()->close_flag()) {
-    fail_promises(load_recent_stickers_queries_[is_attached], Global::request_aborted_error());
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Recent " << (is_attached ? "attached " : "") << "stickers aren't found in database";
-    reload_recent_stickers(is_attached, true);
-    return;
-  }
-
-  LOG(INFO) << "Successfully loaded recent " << (is_attached ? "attached " : "") << "stickers list of size "
-            << value.size() << " from database";
-
-  StickerListLogEvent log_event;
-  auto status = log_event_parse(log_event, value);
-  if (status.is_error()) {
-    // can't happen unless database is broken, but has been seen in the wild
-    LOG(ERROR) << "Can't load recent stickers: " << status << ' ' << format::as_hex_dump<4>(Slice(value));
-    return reload_recent_stickers(is_attached, true);
-  }
-
-  on_load_recent_stickers_finished(is_attached, std::move(log_event.sticker_ids), true);
-}
-
-void StickersManager::on_load_recent_stickers_finished(bool is_attached, vector<FileId> &&recent_sticker_ids,
-                                                       bool from_database) {
-  if (static_cast<int32>(recent_sticker_ids.size()) > recent_stickers_limit_) {
-    recent_sticker_ids.resize(recent_stickers_limit_);
-  }
-  recent_sticker_ids_[is_attached] = std::move(recent_sticker_ids);
-  are_recent_stickers_loaded_[is_attached] = true;
-  send_update_recent_stickers(is_attached, from_database);
-  set_promises(load_recent_stickers_queries_[is_attached]);
-}
-
-void StickersManager::on_get_recent_stickers(bool is_repair, bool is_attached,
-                                             tl_object_ptr<telegram_api::messages_RecentStickers> &&stickers_ptr) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!is_repair) {
-    next_recent_stickers_load_time_[is_attached] = Time::now_cached() + Random::fast(30 * 60, 50 * 60);
-  }
-
-  CHECK(stickers_ptr != nullptr);
-  int32 constructor_id = stickers_ptr->get_id();
-  if (constructor_id == telegram_api::messages_recentStickersNotModified::ID) {
-    if (is_repair) {
-      return on_get_recent_stickers_failed(true, is_attached, Status::Error(500, "Failed to reload recent stickers"));
-    }
-    LOG(INFO) << (is_attached ? "Attached r" : "R") << "ecent stickers are not modified";
-    return;
-  }
-  CHECK(constructor_id == telegram_api::messages_recentStickers::ID);
-  auto stickers = move_tl_object_as<telegram_api::messages_recentStickers>(stickers_ptr);
-
-  vector<FileId> recent_sticker_ids;
-  recent_sticker_ids.reserve(stickers->stickers_.size());
-  for (auto &document_ptr : stickers->stickers_) {
-    auto sticker_id =
-        on_get_sticker_document(std::move(document_ptr), StickerFormat::Unknown, "on_get_recent_stickers").second;
-    if (!sticker_id.is_valid()) {
-      continue;
-    }
-    recent_sticker_ids.push_back(sticker_id);
-  }
-
-  if (is_repair) {
-    set_promises(repair_recent_stickers_queries_[is_attached]);
-  } else {
-    on_load_recent_stickers_finished(is_attached, std::move(recent_sticker_ids));
-
-    LOG_IF(ERROR, recent_stickers_hash_[is_attached] != stickers->hash_) << "Stickers hash mismatch";
-  }
-}
-
-void StickersManager::on_get_recent_stickers_failed(bool is_repair, bool is_attached, Status error) {
-  CHECK(error.is_error());
-  if (!is_repair) {
-    next_recent_stickers_load_time_[is_attached] = Time::now_cached() + Random::fast(5, 10);
-  }
-  fail_promises(is_repair ? repair_recent_stickers_queries_[is_attached] : load_recent_stickers_queries_[is_attached],
-                std::move(error));
-}
-
-int64 StickersManager::get_recent_stickers_hash(const vector<FileId> &sticker_ids, const char *source) const {
-  vector<uint64> numbers;
-  numbers.reserve(sticker_ids.size());
-  for (auto sticker_id : sticker_ids) {
-    auto sticker = get_sticker(sticker_id);
-    LOG_CHECK(sticker != nullptr) << sticker_id << ' ' << stickers_.calc_size() << ' ' << source;
-    auto file_view = td_->file_manager_->get_file_view(sticker_id);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    if (!full_remote_location->is_document()) {
-      LOG(ERROR) << "Recent sticker remote location is not document: " << *full_remote_location << " from " << source;
-      continue;
-    }
-    numbers.push_back(full_remote_location->get_id());
-  }
-  return get_vector_hash(numbers);
-}
-
-FileSourceId StickersManager::get_recent_stickers_file_source_id(int is_attached) {
-  if (!recent_stickers_file_source_id_[is_attached].is_valid()) {
-    recent_stickers_file_source_id_[is_attached] =
-        td_->file_reference_manager_->create_recent_stickers_file_source(is_attached != 0);
-  }
-  return recent_stickers_file_source_id_[is_attached];
-}
-
-void StickersManager::add_recent_sticker(bool is_attached, const tl_object_ptr<td_api::InputFile> &input_file,
-                                         Promise<Unit> &&promise) {
-  if (!are_recent_stickers_loaded_[is_attached]) {
-    load_recent_stickers(is_attached, std::move(promise));
-    return;
-  }
-
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(FileType::Sticker, input_file, DialogId(), false, false));
-
-  add_recent_sticker_impl(is_attached, file_id, true, std::move(promise));
-}
-
-void StickersManager::send_save_recent_sticker_query(bool is_attached, FileId sticker_id, bool unsave,
-                                                     Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  // TODO invokeAfter and log event
-  auto file_view = td_->file_manager_->get_file_view(sticker_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  CHECK(full_remote_location != nullptr);
-  CHECK(full_remote_location->is_document());
-  CHECK(!full_remote_location->is_web());
-  td_->create_handler<SaveRecentStickerQuery>(std::move(promise))
-      ->send(is_attached, sticker_id, full_remote_location->as_input_document(), unsave);
-}
-
-void StickersManager::add_recent_sticker_by_id(bool is_attached, FileId sticker_id) {
-  // TODO log event
-  add_recent_sticker_impl(is_attached, sticker_id, false, Auto());
-}
-
-void StickersManager::add_recent_sticker_impl(bool is_attached, FileId sticker_id, bool add_on_server,
-                                              Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  LOG(INFO) << "Add recent " << (is_attached ? "attached " : "") << "sticker " << sticker_id;
-  if (!are_recent_stickers_loaded_[is_attached]) {
-    load_recent_stickers(is_attached, PromiseCreator::lambda([is_attached, sticker_id, add_on_server,
-                                                              promise = std::move(promise)](Result<> result) mutable {
-                           if (result.is_ok()) {
-                             send_closure(G()->stickers_manager(), &StickersManager::add_recent_sticker_impl,
-                                          is_attached, sticker_id, add_on_server, std::move(promise));
-                           } else {
-                             promise.set_error(result.move_as_error());
-                           }
-                         }));
-    return;
-  }
-
-  auto is_equal = [sticker_id](FileId file_id) {
-    return file_id == sticker_id || (file_id.get_remote() == sticker_id.get_remote() && sticker_id.get_remote() != 0);
-  };
-
-  vector<FileId> &sticker_ids = recent_sticker_ids_[is_attached];
-  if (!sticker_ids.empty() && is_equal(sticker_ids[0])) {
-    if (sticker_ids[0].get_remote() == 0 && sticker_id.get_remote() != 0) {
-      sticker_ids[0] = sticker_id;
-      save_recent_stickers_to_database(is_attached);
-    }
-
-    return promise.set_value(Unit());
-  }
-
-  auto sticker = get_sticker(sticker_id);
-  if (sticker == nullptr) {
-    return promise.set_error(Status::Error(400, "Sticker not found"));
-  }
-  if (!sticker->set_id_.is_valid() &&
-      (!add_on_server || (sticker->format_ != StickerFormat::Webp && sticker->format_ != StickerFormat::Webm))) {
-    return promise.set_error(Status::Error(400, "The sticker must be from a sticker set"));
-  }
-  if (sticker->type_ == StickerType::CustomEmoji) {
-    return promise.set_error(Status::Error(400, "Custom emoji stickers can't be added to recent"));
-  }
-
-  auto file_view = td_->file_manager_->get_file_view(sticker_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr) {
-    return promise.set_error(Status::Error(400, "Can save only sent stickers"));
-  }
-  if (full_remote_location->is_web()) {
-    return promise.set_error(Status::Error(400, "Can't save web stickers"));
-  }
-  if (!full_remote_location->is_document()) {
-    return promise.set_error(Status::Error(400, "Can't save encrypted stickers"));
-  }
-
-  add_to_top_if(sticker_ids, static_cast<size_t>(recent_stickers_limit_), sticker_id, is_equal);
-
-  if (sticker_ids[0].get_remote() == 0 && sticker_id.get_remote() != 0) {
-    sticker_ids[0] = sticker_id;
-  }
-
-  send_update_recent_stickers(is_attached);
-  if (add_on_server) {
-    send_save_recent_sticker_query(is_attached, sticker_id, false, std::move(promise));
-  }
-}
-
-void StickersManager::remove_recent_sticker(bool is_attached, const tl_object_ptr<td_api::InputFile> &input_file,
-                                            Promise<Unit> &&promise) {
-  if (!are_recent_stickers_loaded_[is_attached]) {
-    load_recent_stickers(is_attached, std::move(promise));
-    return;
-  }
-
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(FileType::Sticker, input_file, DialogId(), false, false));
-
-  vector<FileId> &sticker_ids = recent_sticker_ids_[is_attached];
-  auto is_equal = [sticker_id = file_id](FileId file_id) {
-    return file_id == sticker_id || (file_id.get_remote() == sticker_id.get_remote() && sticker_id.get_remote() != 0);
-  };
-  if (!td::remove_if(sticker_ids, is_equal)) {
-    return promise.set_value(Unit());
-  }
-
-  auto sticker = get_sticker(file_id);
-  if (sticker == nullptr) {
-    return promise.set_error(Status::Error(400, "Sticker not found"));
-  }
-
-  send_save_recent_sticker_query(is_attached, file_id, true, std::move(promise));
-
-  send_update_recent_stickers(is_attached);
-}
-
-void StickersManager::clear_recent_stickers(bool is_attached, Promise<Unit> &&promise) {
-  if (!are_recent_stickers_loaded_[is_attached]) {
-    load_recent_stickers(is_attached, std::move(promise));
-    return;
-  }
-
-  vector<FileId> &sticker_ids = recent_sticker_ids_[is_attached];
-  if (sticker_ids.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  // TODO invokeAfter
-  td_->create_handler<ClearRecentStickersQuery>(std::move(promise))->send(is_attached);
-
-  sticker_ids.clear();
-
-  send_update_recent_stickers(is_attached);
-}
-
-td_api::object_ptr<td_api::updateRecentStickers> StickersManager::get_update_recent_stickers_object(
-    int is_attached) const {
-  return td_api::make_object<td_api::updateRecentStickers>(
-      is_attached != 0, td_->file_manager_->get_file_ids_object(recent_sticker_ids_[is_attached]));
-}
-
-void StickersManager::send_update_recent_stickers(bool is_attached, bool from_database) {
-  if (!are_recent_stickers_loaded_[is_attached]) {
-    return;
-  }
-
-  vector<FileId> new_recent_sticker_file_ids;
-  for (auto &sticker_id : recent_sticker_ids_[is_attached]) {
-    append(new_recent_sticker_file_ids, get_sticker_file_ids(sticker_id));
-  }
-  std::sort(new_recent_sticker_file_ids.begin(), new_recent_sticker_file_ids.end());
-  if (new_recent_sticker_file_ids != recent_sticker_file_ids_[is_attached]) {
-    td_->file_manager_->change_files_source(get_recent_stickers_file_source_id(is_attached),
-                                            recent_sticker_file_ids_[is_attached], new_recent_sticker_file_ids,
-                                            "send_update_recent_stickers");
-    recent_sticker_file_ids_[is_attached] = std::move(new_recent_sticker_file_ids);
-  }
-
-  recent_stickers_hash_[is_attached] =
-      get_recent_stickers_hash(recent_sticker_ids_[is_attached], "send_update_recent_stickers");
-  send_closure(G()->td(), &Td::send_update, get_update_recent_stickers_object(is_attached));
-
-  if (!from_database) {
-    save_recent_stickers_to_database(is_attached != 0);
-  }
-}
-
-void StickersManager::save_recent_stickers_to_database(bool is_attached) {
-  if (G()->use_sqlite_pmc() && !G()->close_flag()) {
-    LOG(INFO) << "Save recent " << (is_attached ? "attached " : "") << "stickers to database";
-    StickerListLogEvent log_event(recent_sticker_ids_[is_attached]);
-    G()->td_db()->get_sqlite_pmc()->set(is_attached ? "ssr1" : "ssr0", log_event_store(log_event).as_slice().str(),
-                                        Auto());
-  }
-}
-
-void StickersManager::on_update_animated_emoji_zoom() {
-  animated_emoji_zoom_ =
-      static_cast<double>(td_->option_manager_->get_option_integer("animated_emoji_zoom", 625000000)) * 1e-9;
-}
-
-void StickersManager::on_update_recent_stickers_limit() {
-  auto recent_stickers_limit =
-      narrow_cast<int32>(td_->option_manager_->get_option_integer("recent_stickers_limit", 200));
-  if (recent_stickers_limit != recent_stickers_limit_) {
-    if (recent_stickers_limit > 0) {
-      LOG(INFO) << "Update recent stickers limit to " << recent_stickers_limit;
-      recent_stickers_limit_ = recent_stickers_limit;
-      for (int is_attached = 0; is_attached < 2; is_attached++) {
-        if (static_cast<int32>(recent_sticker_ids_[is_attached].size()) > recent_stickers_limit) {
-          recent_sticker_ids_[is_attached].resize(recent_stickers_limit);
-          send_update_recent_stickers(is_attached != 0);
-        }
-      }
-    } else {
-      LOG(ERROR) << "Receive wrong recent stickers limit = " << recent_stickers_limit;
-    }
-  }
-}
-
-void StickersManager::on_update_favorite_stickers_limit() {
-  auto favorite_stickers_limit =
-      narrow_cast<int32>(td_->option_manager_->get_option_integer("favorite_stickers_limit", 5));
-  if (favorite_stickers_limit != favorite_stickers_limit_) {
-    if (favorite_stickers_limit > 0) {
-      LOG(INFO) << "Update favorite stickers limit to " << favorite_stickers_limit;
-      favorite_stickers_limit_ = favorite_stickers_limit;
-      if (static_cast<int32>(favorite_sticker_ids_.size()) > favorite_stickers_limit) {
-        favorite_sticker_ids_.resize(favorite_stickers_limit);
-        send_update_favorite_stickers();
-      }
-    } else {
-      LOG(ERROR) << "Receive wrong favorite stickers limit = " << favorite_stickers_limit;
-    }
-  }
-}
-
-void StickersManager::reload_favorite_stickers(bool force) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto &next_load_time = next_favorite_stickers_load_time_;
-  if (!td_->auth_manager_->is_bot() && next_load_time >= 0 && (next_load_time < Time::now() || force)) {
-    LOG_IF(INFO, force) << "Reload favorite stickers";
-    next_load_time = -1;
-    td_->create_handler<GetFavedStickersQuery>()->send(false, get_favorite_stickers_hash());
-  }
-}
-
-void StickersManager::repair_favorite_stickers(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    return promise.set_error(Status::Error(400, "Bots have no favorite stickers"));
-  }
-
-  repair_favorite_stickers_queries_.push_back(std::move(promise));
-  if (repair_favorite_stickers_queries_.size() == 1u) {
-    td_->create_handler<GetFavedStickersQuery>()->send(true, 0);
-  }
-}
-
-vector<FileId> StickersManager::get_favorite_stickers(Promise<Unit> &&promise) {
-  if (!are_favorite_stickers_loaded_) {
-    load_favorite_stickers(std::move(promise));
-    return {};
-  }
-  reload_favorite_stickers(false);
-
-  promise.set_value(Unit());
-  return favorite_sticker_ids_;
-}
-
-void StickersManager::load_favorite_stickers(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    are_favorite_stickers_loaded_ = true;
-  }
-  if (are_favorite_stickers_loaded_) {
-    promise.set_value(Unit());
-    return;
-  }
-  load_favorite_stickers_queries_.push_back(std::move(promise));
-  if (load_favorite_stickers_queries_.size() == 1u) {
-    if (G()->use_sqlite_pmc()) {
-      LOG(INFO) << "Trying to load favorite stickers from database";
-      G()->td_db()->get_sqlite_pmc()->get("ssfav", PromiseCreator::lambda([](string value) {
-                                            send_closure(G()->stickers_manager(),
-                                                         &StickersManager::on_load_favorite_stickers_from_database,
-                                                         std::move(value));
-                                          }));
-    } else {
-      LOG(INFO) << "Trying to load favorite stickers from server";
-      reload_favorite_stickers(true);
-    }
-  }
-}
-
-void StickersManager::on_load_favorite_stickers_from_database(const string &value) {
-  if (G()->close_flag()) {
-    fail_promises(load_favorite_stickers_queries_, Global::request_aborted_error());
-    return;
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Favorite stickers aren't found in database";
-    reload_favorite_stickers(true);
-    return;
-  }
-
-  LOG(INFO) << "Successfully loaded favorite stickers list of size " << value.size() << " from database";
-
-  StickerListLogEvent log_event;
-  auto status = log_event_parse(log_event, value);
-  if (status.is_error()) {
-    // can't happen unless database is broken, but has been seen in the wild
-    LOG(ERROR) << "Can't load favorite stickers: " << status << ' ' << format::as_hex_dump<4>(Slice(value));
-    return reload_favorite_stickers(true);
-  }
-
-  on_load_favorite_stickers_finished(std::move(log_event.sticker_ids), true);
-}
-
-void StickersManager::on_load_favorite_stickers_finished(vector<FileId> &&favorite_sticker_ids, bool from_database) {
-  if (static_cast<int32>(favorite_sticker_ids.size()) > favorite_stickers_limit_) {
-    favorite_sticker_ids.resize(favorite_stickers_limit_);
-  }
-  favorite_sticker_ids_ = std::move(favorite_sticker_ids);
-  are_favorite_stickers_loaded_ = true;
-  send_update_favorite_stickers(from_database);
-  set_promises(load_favorite_stickers_queries_);
-}
-
-void StickersManager::on_get_favorite_stickers(
-    bool is_repair, tl_object_ptr<telegram_api::messages_FavedStickers> &&favorite_stickers_ptr) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!is_repair) {
-    next_favorite_stickers_load_time_ = Time::now_cached() + Random::fast(30 * 60, 50 * 60);
-  }
-
-  CHECK(favorite_stickers_ptr != nullptr);
-  int32 constructor_id = favorite_stickers_ptr->get_id();
-  if (constructor_id == telegram_api::messages_favedStickersNotModified::ID) {
-    if (is_repair) {
-      return on_get_favorite_stickers_failed(true, Status::Error(500, "Failed to reload favorite stickers"));
-    }
-    LOG(INFO) << "Favorite stickers are not modified";
-    return;
-  }
-  CHECK(constructor_id == telegram_api::messages_favedStickers::ID);
-  auto favorite_stickers = move_tl_object_as<telegram_api::messages_favedStickers>(favorite_stickers_ptr);
-
-  // TODO use favorite_stickers->packs_
-
-  vector<FileId> favorite_sticker_ids;
-  favorite_sticker_ids.reserve(favorite_stickers->stickers_.size());
-  for (auto &document_ptr : favorite_stickers->stickers_) {
-    auto sticker_id =
-        on_get_sticker_document(std::move(document_ptr), StickerFormat::Unknown, "on_get_favorite_stickers").second;
-    if (!sticker_id.is_valid()) {
-      continue;
-    }
-
-    favorite_sticker_ids.push_back(sticker_id);
-  }
-
-  if (is_repair) {
-    set_promises(repair_favorite_stickers_queries_);
-  } else {
-    on_load_favorite_stickers_finished(std::move(favorite_sticker_ids));
-
-    LOG_IF(ERROR, get_favorite_stickers_hash() != favorite_stickers->hash_) << "Favorite stickers hash mismatch";
-  }
-}
-
-void StickersManager::on_get_favorite_stickers_failed(bool is_repair, Status error) {
-  CHECK(error.is_error());
-  if (!is_repair) {
-    next_favorite_stickers_load_time_ = Time::now_cached() + Random::fast(5, 10);
-  }
-  fail_promises(is_repair ? repair_favorite_stickers_queries_ : load_favorite_stickers_queries_, std::move(error));
-}
-
-int64 StickersManager::get_favorite_stickers_hash() const {
-  return get_recent_stickers_hash(favorite_sticker_ids_, "get_favorite_stickers_hash");
-}
-
-FileSourceId StickersManager::get_app_config_file_source_id() {
-  if (!app_config_file_source_id_.is_valid()) {
-    app_config_file_source_id_ = td_->file_reference_manager_->create_app_config_file_source();
-  }
-  return app_config_file_source_id_;
-}
-
-FileSourceId StickersManager::get_favorite_stickers_file_source_id() {
-  if (!favorite_stickers_file_source_id_.is_valid()) {
-    favorite_stickers_file_source_id_ = td_->file_reference_manager_->create_favorite_stickers_file_source();
-  }
-  return favorite_stickers_file_source_id_;
-}
-
-void StickersManager::add_favorite_sticker(const tl_object_ptr<td_api::InputFile> &input_file,
-                                           Promise<Unit> &&promise) {
-  if (!are_favorite_stickers_loaded_) {
-    load_favorite_stickers(std::move(promise));
-    return;
-  }
-
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(FileType::Sticker, input_file, DialogId(), false, false));
-
-  add_favorite_sticker_impl(file_id, true, std::move(promise));
-}
-
-void StickersManager::send_fave_sticker_query(FileId sticker_id, bool unsave, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  // TODO invokeAfter and log event
-  auto file_view = td_->file_manager_->get_file_view(sticker_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  CHECK(full_remote_location != nullptr);
-  CHECK(full_remote_location->is_document());
-  CHECK(!full_remote_location->is_web());
-  td_->create_handler<FaveStickerQuery>(std::move(promise))
-      ->send(sticker_id, full_remote_location->as_input_document(), unsave);
-}
-
-void StickersManager::add_favorite_sticker_by_id(FileId sticker_id) {
-  // TODO log event
-  add_favorite_sticker_impl(sticker_id, false, Auto());
-}
-
-void StickersManager::add_favorite_sticker_impl(FileId sticker_id, bool add_on_server, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-
-  if (!are_favorite_stickers_loaded_) {
-    load_favorite_stickers(
-        PromiseCreator::lambda([sticker_id, add_on_server, promise = std::move(promise)](Result<> result) mutable {
-          if (result.is_ok()) {
-            send_closure(G()->stickers_manager(), &StickersManager::add_favorite_sticker_impl, sticker_id,
-                         add_on_server, std::move(promise));
-          } else {
-            promise.set_error(result.move_as_error());
-          }
-        }));
-    return;
-  }
-
-  auto is_equal = [sticker_id](FileId file_id) {
-    return file_id == sticker_id || (file_id.get_remote() == sticker_id.get_remote() && sticker_id.get_remote() != 0);
-  };
-
-  if (!favorite_sticker_ids_.empty() && is_equal(favorite_sticker_ids_[0])) {
-    if (favorite_sticker_ids_[0].get_remote() == 0 && sticker_id.get_remote() != 0) {
-      favorite_sticker_ids_[0] = sticker_id;
-      save_favorite_stickers_to_database();
-    }
-
-    return promise.set_value(Unit());
-  }
-
-  auto sticker = get_sticker(sticker_id);
-  if (sticker == nullptr) {
-    return promise.set_error(Status::Error(400, "Sticker not found"));
-  }
-  if (!sticker->set_id_.is_valid() &&
-      (!add_on_server || (sticker->format_ != StickerFormat::Webp && sticker->format_ != StickerFormat::Webm))) {
-    return promise.set_error(Status::Error(400, "The sticker must be from a sticker set"));
-  }
-  if (sticker->type_ == StickerType::CustomEmoji) {
-    return promise.set_error(Status::Error(400, "Custom emoji stickers can't be added to favorite"));
-  }
-
-  auto file_view = td_->file_manager_->get_file_view(sticker_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr) {
-    return promise.set_error(Status::Error(400, "Can add to favorites only sent stickers"));
-  }
-  if (full_remote_location->is_web()) {
-    return promise.set_error(Status::Error(400, "Can't add to favorites web stickers"));
-  }
-  if (!full_remote_location->is_document()) {
-    return promise.set_error(Status::Error(400, "Can't add to favorites encrypted stickers"));
-  }
-
-  add_to_top_if(favorite_sticker_ids_, static_cast<size_t>(favorite_stickers_limit_), sticker_id, is_equal);
-
-  if (favorite_sticker_ids_[0].get_remote() == 0 && sticker_id.get_remote() != 0) {
-    favorite_sticker_ids_[0] = sticker_id;
-  }
-
-  send_update_favorite_stickers();
-  if (add_on_server) {
-    send_fave_sticker_query(sticker_id, false, std::move(promise));
-  }
-}
-
-void StickersManager::remove_favorite_sticker(const tl_object_ptr<td_api::InputFile> &input_file,
-                                              Promise<Unit> &&promise) {
-  if (!are_favorite_stickers_loaded_) {
-    load_favorite_stickers(std::move(promise));
-    return;
-  }
-
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(FileType::Sticker, input_file, DialogId(), false, false));
-
-  auto is_equal = [sticker_id = file_id](FileId file_id) {
-    return file_id == sticker_id || (file_id.get_remote() == sticker_id.get_remote() && sticker_id.get_remote() != 0);
-  };
-  if (!td::remove_if(favorite_sticker_ids_, is_equal)) {
-    return promise.set_value(Unit());
-  }
-
-  auto sticker = get_sticker(file_id);
-  if (sticker == nullptr) {
-    return promise.set_error(Status::Error(400, "Sticker not found"));
-  }
-
-  send_fave_sticker_query(file_id, true, std::move(promise));
-
-  send_update_favorite_stickers();
-}
-
-td_api::object_ptr<td_api::updateFavoriteStickers> StickersManager::get_update_favorite_stickers_object() const {
-  return td_api::make_object<td_api::updateFavoriteStickers>(
-      td_->file_manager_->get_file_ids_object(favorite_sticker_ids_));
-}
-
-void StickersManager::send_update_favorite_stickers(bool from_database) {
-  if (are_favorite_stickers_loaded_) {
-    vector<FileId> new_favorite_sticker_file_ids;
-    for (auto &sticker_id : favorite_sticker_ids_) {
-      append(new_favorite_sticker_file_ids, get_sticker_file_ids(sticker_id));
-    }
-    std::sort(new_favorite_sticker_file_ids.begin(), new_favorite_sticker_file_ids.end());
-    if (new_favorite_sticker_file_ids != favorite_sticker_file_ids_) {
-      td_->file_manager_->change_files_source(get_favorite_stickers_file_source_id(), favorite_sticker_file_ids_,
-                                              new_favorite_sticker_file_ids, "send_update_favorite_stickers");
-      favorite_sticker_file_ids_ = std::move(new_favorite_sticker_file_ids);
-    }
-
-    send_closure(G()->td(), &Td::send_update, get_update_favorite_stickers_object());
-
-    if (!from_database) {
-      save_favorite_stickers_to_database();
-    }
-  }
-}
-
-void StickersManager::save_favorite_stickers_to_database() {
-  if (G()->use_sqlite_pmc() && !G()->close_flag()) {
-    LOG(INFO) << "Save favorite stickers to database";
-    StickerListLogEvent log_event(favorite_sticker_ids_);
-    G()->td_db()->get_sqlite_pmc()->set("ssfav", log_event_store(log_event).as_slice().str(), Auto());
-  }
-}
-
-vector<string> StickersManager::get_sticker_emojis(const tl_object_ptr<td_api::InputFile> &input_file,
-                                                   Promise<Unit> &&promise) {
-  auto r_file_id = td_->file_manager_->get_input_file_id(FileType::Sticker, input_file, DialogId(), false, false);
-  if (r_file_id.is_error()) {
-    promise.set_error(r_file_id.move_as_error());
-    return {};
-  }
-
-  FileId file_id = r_file_id.ok();
-
-  auto sticker = get_sticker(file_id);
-  if (sticker == nullptr) {
-    promise.set_value(Unit());
-    return {};
-  }
-  if (!sticker->set_id_.is_valid()) {
-    promise.set_value(Unit());
-    return {};
-  }
-
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr) {
-    promise.set_value(Unit());
-    return {};
-  }
-  if (!full_remote_location->is_document()) {
-    promise.set_value(Unit());
-    return {};
-  }
-  if (full_remote_location->is_web()) {
-    promise.set_value(Unit());
-    return {};
-  }
-
-  const StickerSet *sticker_set = get_sticker_set(sticker->set_id_);
-  if (update_sticker_set_cache(sticker_set, promise)) {
-    return {};
-  }
-
-  promise.set_value(Unit());
-  auto it = sticker_set->sticker_emojis_map_.find(file_id);
-  if (it == sticker_set->sticker_emojis_map_.end()) {
-    return {};
-  }
-
-  return it->second;
-}
-
-string StickersManager::get_emoji_language_code_version_database_key(const string &language_code) {
-  return PSTRING() << "emojiv$" << language_code;
-}
-
-int32 StickersManager::get_emoji_language_code_version(const string &language_code) {
-  auto it = emoji_language_code_versions_.find(language_code);
-  if (it != emoji_language_code_versions_.end()) {
-    return it->second;
-  }
-  if (language_code.empty()) {
-    return 0;
-  }
-  auto &result = emoji_language_code_versions_[language_code];
-  result = to_integer<int32>(
-      G()->td_db()->get_sqlite_sync_pmc()->get(get_emoji_language_code_version_database_key(language_code)));
-  return result;
-}
-
-string StickersManager::get_emoji_language_code_last_difference_time_database_key(const string &language_code) {
-  return PSTRING() << "emojid$" << language_code;
-}
-
-double StickersManager::get_emoji_language_code_last_difference_time(const string &language_code) {
-  auto it = emoji_language_code_last_difference_times_.find(language_code);
-  if (it != emoji_language_code_last_difference_times_.end()) {
-    return it->second;
-  }
-  if (language_code.empty()) {
-    return Time::now_cached() - G()->unix_time();
-  }
-  auto &result = emoji_language_code_last_difference_times_[language_code];
-  auto old_unix_time = to_integer<int32>(G()->td_db()->get_sqlite_sync_pmc()->get(
-      get_emoji_language_code_last_difference_time_database_key(language_code)));
-  int32 passed_time = max(static_cast<int32>(0), G()->unix_time() - old_unix_time);
-  result = Time::now_cached() - passed_time;
-  return result;
-}
-
-string StickersManager::get_language_emojis_database_key(const string &language_code, const string &text) {
-  return PSTRING() << "emoji$" << language_code << '$' << text;
-}
-
-vector<std::pair<string, string>> StickersManager::search_language_emojis(const string &language_code,
-                                                                          const string &text) {
-  LOG(INFO) << "Search emoji for \"" << text << "\" in language " << language_code;
-  auto key = get_language_emojis_database_key(language_code, text);
-  vector<std::pair<string, string>> result;
-  G()->td_db()->get_sqlite_sync_pmc()->get_by_prefix(key, [&text, &result](Slice key, Slice value) {
-    for (const auto &emoji : full_split(value, '$')) {
-      result.emplace_back(emoji.str(), PSTRING() << text << key);
-    }
-    return true;
-  });
-  return result;
-}
-
-vector<string> StickersManager::get_keyword_language_emojis(const string &language_code, const string &text) {
-  LOG(INFO) << "Get emoji for \"" << text << "\" in language " << language_code;
-  auto key = get_language_emojis_database_key(language_code, text);
-  string emojis = G()->td_db()->get_sqlite_sync_pmc()->get(key);
-  return full_split(emojis, '$');
-}
-
-string StickersManager::get_emoji_language_codes_database_key(const vector<string> &language_codes) {
-  return PSTRING() << "emojilc$" << implode(language_codes, '$');
-}
-
-void StickersManager::load_language_codes(vector<string> language_codes, string key, Promise<Unit> &&promise) {
-  auto &promises = load_language_codes_queries_[key];
-  promises.push_back(std::move(promise));
-  if (promises.size() != 1) {
-    // query has already been sent, just wait for the result
-    return;
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), key = std::move(key)](Result<vector<string>> &&result) {
-        send_closure(actor_id, &StickersManager::on_get_language_codes, key, std::move(result));
-      });
-  td_->create_handler<GetEmojiKeywordsLanguageQuery>(std::move(query_promise))->send(std::move(language_codes));
-}
-
-void StickersManager::on_get_language_codes(const string &key, Result<vector<string>> &&result) {
-  auto queries_it = load_language_codes_queries_.find(key);
-  CHECK(queries_it != load_language_codes_queries_.end());
-  CHECK(!queries_it->second.empty());
-  auto promises = std::move(queries_it->second);
-  load_language_codes_queries_.erase(queries_it);
-
-  if (result.is_error()) {
-    if (!G()->is_expected_error(result.error())) {
-      LOG(ERROR) << "Receive " << result.error() << " from GetEmojiKeywordsLanguageQuery";
-    }
-    fail_promises(promises, result.move_as_error());
-    return;
-  }
-
-  auto language_codes = result.move_as_ok();
-  LOG(INFO) << "Receive language codes " << language_codes << " for emojis search with key " << key;
-  td::remove_if(language_codes, [](const string &language_code) {
-    if (language_code.empty() || language_code.find('$') != string::npos) {
-      LOG(ERROR) << "Receive language_code \"" << language_code << '"';
-      return true;
-    }
-    return false;
-  });
-  if (language_codes.empty()) {
-    LOG(ERROR) << "Language codes list is empty";
-    language_codes.emplace_back("en");
-  }
-  td::unique(language_codes);
-
-  auto it = emoji_language_codes_.find(key);
-  CHECK(it != emoji_language_codes_.end());
-  if (it->second != language_codes) {
-    LOG(INFO) << "Update emoji language codes for " << key << " to " << language_codes;
-    if (!G()->close_flag()) {
-      CHECK(G()->use_sqlite_pmc());
-      G()->td_db()->get_sqlite_pmc()->set(key, implode(language_codes, '$'), Auto());
-    }
-    it->second = std::move(language_codes);
-  }
-
-  set_promises(promises);
-}
-
-vector<string> StickersManager::get_used_language_codes(const vector<string> &input_language_codes, Slice text) const {
-  vector<string> language_codes = td_->language_pack_manager_.get_actor_unsafe()->get_used_language_codes();
-  auto system_language_code = G()->mtproto_header().get_system_language_code();
-  if (system_language_code.size() >= 2 && system_language_code.find('$') == string::npos &&
-      (system_language_code.size() == 2 || system_language_code[2] == '-')) {
-    language_codes.push_back(system_language_code.substr(0, 2));
-  }
-  for (auto &input_language_code : input_language_codes) {
-    if (input_language_code.size() >= 2 && input_language_code.find('$') == string::npos &&
-        (input_language_code.size() == 2 || input_language_code[2] == '-')) {
-      language_codes.push_back(input_language_code.substr(0, 2));
-    }
-  }
-  if (!text.empty()) {
-    uint32 code = 0;
-    next_utf8_unsafe(text.ubegin(), &code);
-    if ((0x410 <= code && code <= 0x44F) || code == 0x401 || code == 0x451) {
-      // the first letter is cyrillic
-      if (!td::contains(language_codes, "ru") && !td::contains(language_codes, "uk") &&
-          !td::contains(language_codes, "bg") && !td::contains(language_codes, "be") &&
-          !td::contains(language_codes, "mk") && !td::contains(language_codes, "sr") &&
-          !td::contains(language_codes, "mn") && !td::contains(language_codes, "ky") &&
-          !td::contains(language_codes, "kk") && !td::contains(language_codes, "uz") &&
-          !td::contains(language_codes, "tk")) {
-        language_codes.push_back("ru");
-      }
-    }
-  }
-  td::unique(language_codes);
-
-  if (language_codes.empty()) {
-    LOG(INFO) << "List of language codes is empty";
-    language_codes.push_back("en");
-  }
-  return language_codes;
-}
-
-string StickersManager::get_used_language_codes_string() const {
-  return implode(get_used_language_codes({}, Slice()), '$');
-}
-
-vector<string> StickersManager::get_emoji_language_codes(const vector<string> &input_language_codes, Slice text,
-                                                         Promise<Unit> &promise) {
-  auto language_codes = get_used_language_codes(input_language_codes, text);
-
-  LOG(DEBUG) << "Have language codes " << language_codes;
-  auto key = get_emoji_language_codes_database_key(language_codes);
-  auto it = emoji_language_codes_.find(key);
-  if (it == emoji_language_codes_.end()) {
-    it = emoji_language_codes_.emplace(key, full_split(G()->td_db()->get_sqlite_sync_pmc()->get(key), '$')).first;
-    td::remove_if(it->second, [](const string &language_code) {
-      if (language_code.empty() || language_code.find('$') != string::npos) {
-        LOG(ERROR) << "Loaded language_code \"" << language_code << '"';
-        return true;
-      }
-      return false;
-    });
-  }
-  if (it->second.empty()) {
-    load_language_codes(std::move(language_codes), std::move(key), std::move(promise));
-  } else {
-    LOG(DEBUG) << "Have emoji language codes " << it->second;
-    double now = Time::now_cached();
-    for (auto &language_code : it->second) {
-      double last_difference_time = get_emoji_language_code_last_difference_time(language_code);
-      if (last_difference_time < now - EMOJI_KEYWORDS_UPDATE_DELAY &&
-          get_emoji_language_code_version(language_code) != 0) {
-        load_emoji_keywords_difference(language_code);
-      }
-    }
-    if (reloaded_emoji_keywords_.insert(key).second) {
-      load_language_codes(std::move(language_codes), std::move(key), Auto());
-    }
-  }
-  return it->second;
-}
-
-void StickersManager::load_emoji_keywords(const string &language_code, Promise<Unit> &&promise) {
-  auto &promises = load_emoji_keywords_queries_[language_code];
-  promises.push_back(std::move(promise));
-  if (promises.size() != 1) {
-    // query has already been sent, just wait for the result
-    return;
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this),
-       language_code](Result<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> &&result) mutable {
-        send_closure(actor_id, &StickersManager::on_get_emoji_keywords, language_code, std::move(result));
-      });
-  td_->create_handler<GetEmojiKeywordsQuery>(std::move(query_promise))->send(language_code);
-}
-
-void StickersManager::on_get_emoji_keywords(
-    const string &language_code, Result<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> &&result) {
-  auto it = load_emoji_keywords_queries_.find(language_code);
-  CHECK(it != load_emoji_keywords_queries_.end());
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  load_emoji_keywords_queries_.erase(it);
-
-  if (result.is_error()) {
-    if (!G()->is_expected_error(result.error())) {
-      LOG(ERROR) << "Receive " << result.error() << " from GetEmojiKeywordsQuery";
-    }
-    fail_promises(promises, result.move_as_error());
-    return;
-  }
-
-  auto version = get_emoji_language_code_version(language_code);
-  CHECK(version == 0);
-
-  MultiPromiseActorSafe mpas{"SaveEmojiKeywordsMultiPromiseActor"};
-  for (auto &promise : promises) {
-    mpas.add_promise(std::move(promise));
-  }
-
-  auto lock = mpas.get_promise();
-
-  auto keywords = result.move_as_ok();
-  LOG(INFO) << "Receive " << keywords->keywords_.size() << " emoji keywords for language " << language_code;
-  LOG_IF(ERROR, language_code != keywords->lang_code_)
-      << "Receive keywords for " << keywords->lang_code_ << " instead of " << language_code;
-  LOG_IF(ERROR, keywords->from_version_ != 0) << "Receive keywords from version " << keywords->from_version_;
-  version = keywords->version_;
-  if (version <= 0) {
-    LOG(ERROR) << "Receive keywords of version " << version;
-    version = 1;
-  }
-  for (auto &keyword_ptr : keywords->keywords_) {
-    switch (keyword_ptr->get_id()) {
-      case telegram_api::emojiKeyword::ID: {
-        auto keyword = telegram_api::move_object_as<telegram_api::emojiKeyword>(keyword_ptr);
-        auto text = utf8_to_lower(keyword->keyword_);
-        bool is_good = true;
-        for (auto &emoji : keyword->emoticons_) {
-          if (emoji.find('$') != string::npos) {
-            LOG(ERROR) << "Receive emoji \"" << emoji << "\" from server for " << text;
-            is_good = false;
-          }
-        }
-        if (is_good && !G()->close_flag()) {
-          CHECK(G()->use_sqlite_pmc());
-          G()->td_db()->get_sqlite_pmc()->set(get_language_emojis_database_key(language_code, text),
-                                              implode(keyword->emoticons_, '$'), mpas.get_promise());
-        }
-        break;
-      }
-      case telegram_api::emojiKeywordDeleted::ID:
-        LOG(ERROR) << "Receive emojiKeywordDeleted in keywords for " << language_code;
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-  if (!G()->close_flag()) {
-    CHECK(G()->use_sqlite_pmc());
-    G()->td_db()->get_sqlite_pmc()->set(get_emoji_language_code_version_database_key(language_code), to_string(version),
-                                        mpas.get_promise());
-    G()->td_db()->get_sqlite_pmc()->set(get_emoji_language_code_last_difference_time_database_key(language_code),
-                                        to_string(G()->unix_time()), mpas.get_promise());
-  }
-  emoji_language_code_versions_[language_code] = version;
-  emoji_language_code_last_difference_times_[language_code] = static_cast<int32>(Time::now_cached());
-
-  lock.set_value(Unit());
-}
-
-void StickersManager::load_emoji_keywords_difference(const string &language_code) {
-  LOG(INFO) << "Load emoji keywords difference for language " << language_code;
-  CHECK(!language_code.empty());
-  emoji_language_code_last_difference_times_[language_code] =
-      Time::now_cached() + 1e9;  // prevent simultaneous requests
-  int32 from_version = get_emoji_language_code_version(language_code);
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), language_code,
-       from_version](Result<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> &&result) mutable {
-        send_closure(actor_id, &StickersManager::on_get_emoji_keywords_difference, language_code, from_version,
-                     std::move(result));
-      });
-  td_->create_handler<GetEmojiKeywordsDifferenceQuery>(std::move(query_promise))->send(language_code, from_version);
-}
-
-void StickersManager::on_get_emoji_keywords_difference(
-    const string &language_code, int32 from_version,
-    Result<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> &&result) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error()) {
-    if (!G()->is_expected_error(result.error())) {
-      LOG(ERROR) << "Receive " << result.error() << " from GetEmojiKeywordsDifferenceQuery";
-    }
-    emoji_language_code_last_difference_times_[language_code] = Time::now_cached() - EMOJI_KEYWORDS_UPDATE_DELAY - 2;
-    return;
-  }
-
-  auto version = get_emoji_language_code_version(language_code);
-  CHECK(version == from_version);
-
-  auto keywords = result.move_as_ok();
-  LOG(INFO) << "Receive " << keywords->keywords_.size() << " emoji keywords difference for language " << language_code;
-  LOG_IF(ERROR, language_code != keywords->lang_code_)
-      << "Receive keywords for " << keywords->lang_code_ << " instead of " << language_code;
-  LOG_IF(ERROR, keywords->from_version_ != from_version)
-      << "Receive keywords from version " << keywords->from_version_ << " instead of " << from_version;
-  if (keywords->version_ < version) {
-    LOG(ERROR) << "Receive keywords of version " << keywords->version_ << ", but have of version " << version;
-    keywords->version_ = version;
-  }
-  version = keywords->version_;
-  FlatHashMap<string, string> key_values;
-  key_values.emplace(get_emoji_language_code_version_database_key(language_code), to_string(version));
-  key_values.emplace(get_emoji_language_code_last_difference_time_database_key(language_code),
-                     to_string(G()->unix_time()));
-  for (auto &keyword_ptr : keywords->keywords_) {
-    switch (keyword_ptr->get_id()) {
-      case telegram_api::emojiKeyword::ID: {
-        auto keyword = telegram_api::move_object_as<telegram_api::emojiKeyword>(keyword_ptr);
-        auto text = utf8_to_lower(keyword->keyword_);
-        bool is_good = true;
-        for (auto &emoji : keyword->emoticons_) {
-          if (emoji.find('$') != string::npos) {
-            LOG(ERROR) << "Receive emoji \"" << emoji << "\" from server for " << text;
-            is_good = false;
-          }
-        }
-        if (is_good) {
-          vector<string> emojis = get_keyword_language_emojis(language_code, text);
-          bool is_changed = false;
-          for (auto &emoji : keyword->emoticons_) {
-            if (!td::contains(emojis, emoji)) {
-              emojis.push_back(emoji);
-              is_changed = true;
-            }
-          }
-          if (is_changed) {
-            key_values.emplace(get_language_emojis_database_key(language_code, text), implode(emojis, '$'));
-          } else {
-            LOG(INFO) << "Emoji keywords not changed for \"" << text << "\" from version " << from_version
-                      << " to version " << version;
-          }
-        }
-        break;
-      }
-      case telegram_api::emojiKeywordDeleted::ID: {
-        auto keyword = telegram_api::move_object_as<telegram_api::emojiKeywordDeleted>(keyword_ptr);
-        auto text = utf8_to_lower(keyword->keyword_);
-        vector<string> emojis = get_keyword_language_emojis(language_code, text);
-        bool is_changed = false;
-        for (auto &emoji : keyword->emoticons_) {
-          if (td::remove(emojis, emoji)) {
-            is_changed = true;
-          }
-        }
-        if (is_changed) {
-          key_values.emplace(get_language_emojis_database_key(language_code, text), implode(emojis, '$'));
-        } else {
-          LOG(INFO) << "Emoji keywords not changed for \"" << text << "\" from version " << from_version
-                    << " to version " << version;
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-  CHECK(G()->use_sqlite_pmc());
-  G()->td_db()->get_sqlite_pmc()->set_all(
-      std::move(key_values), PromiseCreator::lambda([actor_id = actor_id(this), language_code, version](Unit) mutable {
-        send_closure(actor_id, &StickersManager::finish_get_emoji_keywords_difference, std::move(language_code),
-                     version);
-      }));
-}
-
-void StickersManager::finish_get_emoji_keywords_difference(string language_code, int32 version) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Finished to get emoji keywords difference for language " << language_code;
-  emoji_language_code_versions_[language_code] = version;
-  emoji_language_code_last_difference_times_[language_code] = static_cast<int32>(Time::now_cached());
-}
-
-bool StickersManager::prepare_search_emoji_query(const string &text, const vector<string> &input_language_codes,
-                                                 bool force, Promise<Unit> &promise, SearchEmojiQuery &query) {
-  if (text.empty() || !G()->use_sqlite_pmc()) {
-    promise.set_value(Unit());
-    return false;
-  }
-
-  auto language_codes = get_emoji_language_codes(input_language_codes, text, promise);
-  if (language_codes.empty()) {
-    // promise was consumed
-    return false;
-  }
-
-  vector<string> languages_to_load;
-  for (auto &language_code : language_codes) {
-    CHECK(!language_code.empty());
-    auto version = get_emoji_language_code_version(language_code);
-    if (version == 0) {
-      languages_to_load.push_back(language_code);
-    } else {
-      LOG(DEBUG) << "Found language " << language_code << " with version " << version;
-    }
-  }
-
-  if (!languages_to_load.empty()) {
-    if (!force) {
-      MultiPromiseActorSafe mpas{"LoadEmojiLanguagesMultiPromiseActor"};
-      mpas.add_promise(std::move(promise));
-
-      auto lock = mpas.get_promise();
-      for (auto &language_code : languages_to_load) {
-        load_emoji_keywords(language_code, mpas.get_promise());
-      }
-      lock.set_value(Unit());
-      return false;
-    } else {
-      LOG(ERROR) << "Have no " << languages_to_load << " emoji keywords";
-    }
-  }
-
-  query.text_ = utf8_to_lower(text);
-  query.language_codes_ = std::move(language_codes);
-  return true;
-}
-
-vector<std::pair<string, string>> StickersManager::search_emojis(const string &text,
-                                                                 const vector<string> &input_language_codes, bool force,
-                                                                 Promise<Unit> &&promise) {
-  SearchEmojiQuery query;
-  if (!prepare_search_emoji_query(text, input_language_codes, force, promise, query)) {
-    return {};
-  }
-
-  vector<std::pair<string, string>> result;
-  for (auto &language_code : query.language_codes_) {
-    combine(result, search_language_emojis(language_code, query.text_));
-  }
-  td::unique(result);
-
-  promise.set_value(Unit());
-  return result;
-}
-
-vector<string> StickersManager::get_keyword_emojis(const string &text, const vector<string> &input_language_codes,
-                                                   bool force, Promise<Unit> &&promise) {
-  SearchEmojiQuery query;
-  if (!prepare_search_emoji_query(text, input_language_codes, force, promise, query)) {
-    return {};
-  }
-
-  vector<string> result;
-  for (auto &language_code : query.language_codes_) {
-    combine(result, get_keyword_language_emojis(language_code, query.text_));
-  }
-  td::unique(result);
-
-  promise.set_value(Unit());
-  return result;
-}
-
-void StickersManager::get_emoji_suggestions_url(const string &language_code, Promise<string> &&promise) {
-  td_->create_handler<GetEmojiUrlQuery>(std::move(promise))->send(language_code);
-}
-
-string StickersManager::get_emoji_groups_database_key(EmojiGroupType group_type) {
-  return PSTRING() << "emojigroup" << static_cast<int32>(group_type);
-}
-
-void StickersManager::get_emoji_groups(EmojiGroupType group_type,
-                                       Promise<td_api::object_ptr<td_api::emojiCategories>> &&promise) {
-  auto type = static_cast<int32>(group_type);
-  auto used_language_codes = get_used_language_codes_string();
-  LOG(INFO) << "Have language codes " << used_language_codes;
-  if (emoji_group_list_[type].get_used_language_codes() == used_language_codes) {
-    promise.set_value(emoji_group_list_[type].get_emoji_categories_object(this));
-    if (!emoji_group_list_[type].is_expired()) {
-      return;
-    }
-    promise = Promise<td_api::object_ptr<td_api::emojiCategories>>();
-  }
-
-  emoji_group_load_queries_[type].push_back(std::move(promise));
-  if (emoji_group_load_queries_[type].size() != 1) {
-    // query has already been sent, just wait for the result
-    return;
-  }
-
-  if (G()->use_sqlite_pmc()) {
-    G()->td_db()->get_sqlite_pmc()->get(
-        get_emoji_groups_database_key(group_type),
-        PromiseCreator::lambda(
-            [group_type, used_language_codes = std::move(used_language_codes)](string value) mutable {
-              send_closure(G()->stickers_manager(), &StickersManager::on_load_emoji_groups_from_database, group_type,
-                           std::move(used_language_codes), std::move(value));
-            }));
-  } else {
-    reload_emoji_groups(group_type, std::move(used_language_codes));
-  }
-}
-
-void StickersManager::on_load_emoji_groups_from_database(EmojiGroupType group_type, string used_language_codes,
-                                                         string value) {
-  if (G()->close_flag()) {
-    return on_get_emoji_groups(group_type, std::move(used_language_codes), Global::request_aborted_error());
-  }
-  if (value.empty()) {
-    LOG(INFO) << "Emoji groups of type " << group_type << " aren't found in database";
-    return reload_emoji_groups(group_type, std::move(used_language_codes));
-  }
-
-  LOG(INFO) << "Successfully loaded emoji groups of type " << group_type << " from database";
-
-  EmojiGroupList group_list;
-  auto status = log_event_parse(group_list, value);
-  if (status.is_error()) {
-    LOG(ERROR) << "Can't load emoji groups: " << status;
-    return reload_emoji_groups(group_type, std::move(used_language_codes));
-  }
-
-  if (group_list.get_used_language_codes() != used_language_codes) {
-    return reload_emoji_groups(group_type, std::move(used_language_codes));
-  }
-
-  auto custom_emoji_ids = group_list.get_icon_custom_emoji_ids();
-  get_custom_emoji_stickers_unlimited(
-      std::move(custom_emoji_ids),
-      PromiseCreator::lambda([actor_id = actor_id(this), group_type, group_list = std::move(group_list)](
-                                 Result<td_api::object_ptr<td_api::stickers>> &&result) {
-        send_closure(actor_id, &StickersManager::on_load_emoji_group_icons, group_type, std::move(group_list));
-      }));
-}
-
-void StickersManager::on_load_emoji_group_icons(EmojiGroupType group_type, EmojiGroupList group_list) {
-  if (G()->close_flag()) {
-    return on_get_emoji_groups(group_type, group_list.get_used_language_codes(), Global::request_aborted_error());
-  }
-
-  auto type = static_cast<int32>(group_type);
-  emoji_group_list_[type] = std::move(group_list);
-
-  auto promises = std::move(emoji_group_load_queries_[type]);
-  reset_to_empty(emoji_group_load_queries_[type]);
-  for (auto &promise : promises) {
-    promise.set_value(emoji_group_list_[type].get_emoji_categories_object(this));
-  }
-}
-
-void StickersManager::reload_emoji_groups(EmojiGroupType group_type, string used_language_codes) {
-  auto type = static_cast<int32>(group_type);
-  if (used_language_codes.empty()) {
-    used_language_codes = get_used_language_codes_string();
-  }
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), group_type, used_language_codes = std::move(used_language_codes)](
-          Result<telegram_api::object_ptr<telegram_api::messages_EmojiGroups>> r_emoji_groups) {
-        send_closure(actor_id, &StickersManager::on_get_emoji_groups, group_type, std::move(used_language_codes),
-                     std::move(r_emoji_groups));
-      });
-  td_->create_handler<GetEmojiGroupsQuery>(std::move(query_promise))
-      ->send(group_type, emoji_group_list_[type].get_hash());
-}
-
-void StickersManager::on_get_emoji_groups(
-    EmojiGroupType group_type, string used_language_codes,
-    Result<telegram_api::object_ptr<telegram_api::messages_EmojiGroups>> r_emoji_groups) {
-  G()->ignore_result_if_closing(r_emoji_groups);
-
-  auto type = static_cast<int32>(group_type);
-  if (r_emoji_groups.is_error()) {
-    if (!G()->is_expected_error(r_emoji_groups.error())) {
-      LOG(ERROR) << "Receive " << r_emoji_groups.error() << " from GetEmojiGroupsQuery";
-    }
-    return fail_promises(emoji_group_load_queries_[type], r_emoji_groups.move_as_error());
-  }
-
-  auto new_used_language_codes = get_used_language_codes_string();
-  if (new_used_language_codes != used_language_codes) {
-    used_language_codes.clear();
-  }
-
-  auto emoji_groups = r_emoji_groups.move_as_ok();
-  switch (emoji_groups->get_id()) {
-    case telegram_api::messages_emojiGroupsNotModified::ID:
-      if (!used_language_codes.empty()) {
-        emoji_group_list_[type].update_next_reload_time();
-      }
-      break;
-    case telegram_api::messages_emojiGroups::ID: {
-      auto groups = telegram_api::move_object_as<telegram_api::messages_emojiGroups>(emoji_groups);
-      EmojiGroupList group_list = EmojiGroupList(used_language_codes, groups->hash_, std::move(groups->groups_));
-
-      if (!used_language_codes.empty() && G()->use_sqlite_pmc()) {
-        G()->td_db()->get_sqlite_pmc()->set(get_emoji_groups_database_key(group_type),
-                                            log_event_store(group_list).as_slice().str(), Auto());
-      }
-
-      auto custom_emoji_ids = group_list.get_icon_custom_emoji_ids();
-      get_custom_emoji_stickers_unlimited(
-          std::move(custom_emoji_ids),
-          PromiseCreator::lambda([actor_id = actor_id(this), group_type, group_list = std::move(group_list)](
-                                     Result<td_api::object_ptr<td_api::stickers>> &&result) {
-            send_closure(actor_id, &StickersManager::on_load_emoji_group_icons, group_type, std::move(group_list));
-          }));
-      return;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  auto promises = std::move(emoji_group_load_queries_[type]);
-  reset_to_empty(emoji_group_load_queries_[type]);
-  for (auto &promise : promises) {
-    promise.set_value(emoji_group_list_[type].get_emoji_categories_object(this));
-  }
-}
-
-void StickersManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  for (int32 type = 0; type < MAX_STICKER_TYPE; type++) {
-    if (are_installed_sticker_sets_loaded_[type]) {
-      updates.push_back(get_update_installed_sticker_sets_object(static_cast<StickerType>(type)));
-    }
-    if (are_featured_sticker_sets_loaded_[type]) {
-      updates.push_back(get_update_trending_sticker_sets_object(static_cast<StickerType>(type)));
-    }
-  }
-
-  for (int is_attached = 0; is_attached < 2; is_attached++) {
-    if (are_recent_stickers_loaded_[is_attached]) {
-      updates.push_back(get_update_recent_stickers_object(is_attached));
-    }
-  }
-  if (are_favorite_stickers_loaded_) {
-    updates.push_back(get_update_favorite_stickers_object());
-  }
-  if (!dice_emojis_.empty()) {
-    updates.push_back(get_update_dice_emojis_object());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickersManager.h b/third-party/td/td/td/telegram/StickersManager.h
deleted file mode 100644
index f9314283f9..0000000000
--- a/third-party/td/td/td/telegram/StickersManager.h
+++ /dev/null
@@ -1,1198 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/EmojiGroup.h"
-#include "td/telegram/EmojiGroupType.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/QuickReplyMessageFullId.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/SpecialStickerSetType.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickerListType.h"
-#include "td/telegram/StickerMaskPosition.h"
-#include "td/telegram/StickerSetId.h"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiPromise.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Hints.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeHashSet.h"
-
-#include <map>
-#include <memory>
-#include <tuple>
-#include <unordered_map>
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class StickersManager final : public Actor {
- public:
-  static constexpr int64 GREAT_MINDS_SET_ID = 1842540969984001;
-
-  static vector<StickerSetId> convert_sticker_set_ids(const vector<int64> &sticker_set_ids);
-  static vector<int64> convert_sticker_set_ids(const vector<StickerSetId> &sticker_set_ids);
-
-  StickersManager(Td *td, ActorShared<> parent);
-  StickersManager(const StickersManager &) = delete;
-  StickersManager &operator=(const StickersManager &) = delete;
-  StickersManager(StickersManager &&) = delete;
-  StickersManager &operator=(StickersManager &&) = delete;
-  ~StickersManager() final;
-
-  void init();
-
-  StickerType get_sticker_type(FileId file_id) const;
-
-  StickerFormat get_sticker_format(FileId file_id) const;
-
-  bool is_premium_custom_emoji(CustomEmojiId custom_emoji_id, bool default_result) const;
-
-  bool have_sticker(StickerSetId sticker_set_id, int64 sticker_id);
-
-  bool have_custom_emoji(CustomEmojiId custom_emoji_id);
-
-  td_api::object_ptr<td_api::outline> get_sticker_outline_object(FileId file_id, bool for_animated_emoji,
-                                                                 bool for_clicked_animated_emoji) const;
-
-  tl_object_ptr<td_api::sticker> get_sticker_object(FileId file_id, bool for_animated_emoji = false,
-                                                    bool for_clicked_animated_emoji = false) const;
-
-  tl_object_ptr<td_api::stickers> get_stickers_object(const vector<FileId> &sticker_ids) const;
-
-  td_api::object_ptr<td_api::emojis> get_sticker_emojis_object(const vector<FileId> &sticker_ids,
-                                                               bool return_only_main_emoji);
-
-  td_api::object_ptr<td_api::sticker> get_custom_emoji_sticker_object(CustomEmojiId custom_emoji_id);
-
-  tl_object_ptr<td_api::DiceStickers> get_dice_stickers_object(const string &emoji, int32 value) const;
-
-  int32 get_dice_success_animation_frame_number(const string &emoji, int32 value) const;
-
-  tl_object_ptr<td_api::stickerSet> get_sticker_set_object(StickerSetId sticker_set_id) const;
-
-  tl_object_ptr<td_api::stickerSets> get_sticker_sets_object(int32 total_count,
-                                                             const vector<StickerSetId> &sticker_set_ids,
-                                                             size_t covers_limit) const;
-
-  td_api::object_ptr<td_api::sticker> get_premium_gift_sticker_object(int32 month_count, int64 star_count);
-
-  td_api::object_ptr<td_api::animatedEmoji> get_animated_emoji_object(const string &emoji,
-                                                                      CustomEmojiId custom_emoji_id);
-
-  tl_object_ptr<telegram_api::InputStickerSet> get_input_sticker_set(StickerSetId sticker_set_id) const;
-
-  void load_premium_gift_sticker_set(Promise<Unit> &&promise);
-
-  void load_premium_gift_sticker(int32 month_count, int64 star_count,
-                                 Promise<td_api::object_ptr<td_api::sticker>> &&promise);
-
-  void register_premium_gift(int32 months, int64 star_count, MessageFullId message_full_id, const char *source);
-
-  void unregister_premium_gift(int32 months, int64 star_count, MessageFullId message_full_id, const char *source);
-
-  void register_dice(const string &emoji, int32 value, MessageFullId message_full_id,
-                     QuickReplyMessageFullId quick_reply_message_full_id, const char *source);
-
-  void unregister_dice(const string &emoji, int32 value, MessageFullId message_full_id,
-                       QuickReplyMessageFullId quick_reply_message_full_id, const char *source);
-
-  void register_emoji(const string &emoji, CustomEmojiId custom_emoji_id, MessageFullId message_full_id,
-                      QuickReplyMessageFullId quick_reply_message_full_id, const char *source);
-
-  void unregister_emoji(const string &emoji, CustomEmojiId custom_emoji_id, MessageFullId message_full_id,
-                        QuickReplyMessageFullId quick_reply_message_full_id, const char *source);
-
-  void get_animated_emoji(string emoji, bool is_recursive,
-                          Promise<td_api::object_ptr<td_api::animatedEmoji>> &&promise);
-
-  void get_all_animated_emojis(bool is_recursive, Promise<td_api::object_ptr<td_api::emojis>> &&promise);
-
-  void get_custom_emoji_reaction_generic_animations(bool is_recursive,
-                                                    Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  void get_default_emoji_statuses(bool is_recursive,
-                                  Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise);
-
-  bool is_default_emoji_status(CustomEmojiId custom_emoji_id);
-
-  void get_default_channel_emoji_statuses(bool is_recursive,
-                                          Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise);
-
-  void get_default_topic_icons(bool is_recursive, Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  void get_custom_emoji_stickers(vector<CustomEmojiId> custom_emoji_ids, bool use_database,
-                                 Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  void get_default_custom_emoji_stickers(StickerListType sticker_list_type, bool force_reload,
-                                         Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  void get_sticker_list_emoji_statuses(StickerListType sticker_list_type, bool force_reload,
-                                       Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>> &&promise);
-
-  void get_animated_emoji_click_sticker(const string &message_text, MessageFullId message_full_id,
-                                        Promise<td_api::object_ptr<td_api::sticker>> &&promise);
-
-  void on_send_animated_emoji_clicks(DialogId dialog_id, const string &emoji);
-
-  bool is_sent_animated_emoji_click(DialogId dialog_id, const string &emoji);
-
-  Status on_animated_emoji_message_clicked(string &&emoji, MessageFullId message_full_id, string data);
-
-  void create_sticker(FileId file_id, FileId premium_animation_file_id, string minithumbnail, PhotoSize thumbnail,
-                      Dimensions dimensions, telegram_api::object_ptr<telegram_api::documentAttributeSticker> sticker,
-                      telegram_api::object_ptr<telegram_api::documentAttributeCustomEmoji> custom_emoji,
-                      StickerFormat sticker_format, MultiPromiseActor *load_data_multipromise_ptr);
-
-  bool has_secret_input_media(FileId sticker_file_id) const;
-
-  tl_object_ptr<telegram_api::InputMedia> get_input_media(
-      FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, const string &emoji) const;
-
-  SecretInputMedia get_secret_input_media(FileId sticker_file_id,
-                                          telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                          BufferSlice thumbnail, int32 layer) const;
-
-  vector<FileId> get_stickers(StickerType sticker_type, string query, int32 limit, DialogId dialog_id, bool force,
-                              Promise<Unit> &&promise);
-
-  void search_stickers(StickerType sticker_type, string emoji, const string &query,
-                       const vector<string> &input_language_codes, int32 offset, int32 limit,
-                       Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  void get_premium_stickers(int32 limit, Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  vector<StickerSetId> get_installed_sticker_sets(StickerType sticker_type, Promise<Unit> &&promise);
-
-  static bool has_webp_thumbnail(const vector<tl_object_ptr<telegram_api::PhotoSize>> &thumbnails);
-
-  StickerSetId get_sticker_set_id(const tl_object_ptr<telegram_api::InputStickerSet> &set_ptr);
-
-  StickerSetId add_sticker_set(tl_object_ptr<telegram_api::InputStickerSet> &&set_ptr);
-
-  StickerSetId get_sticker_set(StickerSetId set_id, Promise<Unit> &&promise);
-
-  void get_sticker_set_name(StickerSetId set_id, Promise<string> &&promise);
-
-  StickerSetId search_sticker_set(const string &short_name_to_search, bool ignore_cache, Promise<Unit> &&promise);
-
-  std::pair<int32, vector<StickerSetId>> search_installed_sticker_sets(StickerType sticker_type, const string &query,
-                                                                       int32 limit, Promise<Unit> &&promise);
-
-  vector<StickerSetId> search_sticker_sets(StickerType sticker_type, const string &query, Promise<Unit> &&promise);
-
-  void change_sticker_set(StickerSetId set_id, bool is_installed, bool is_archived, Promise<Unit> &&promise);
-
-  void view_featured_sticker_sets(const vector<StickerSetId> &sticker_set_ids);
-
-  void reload_special_sticker_set_by_type(SpecialStickerSetType type, bool is_recursive = false);
-
-  std::pair<int64, FileId> on_get_sticker_document(tl_object_ptr<telegram_api::Document> &&document_ptr,
-                                                   StickerFormat expected_format, const char *source);
-
-  void on_get_installed_sticker_sets(StickerType sticker_type,
-                                     tl_object_ptr<telegram_api::messages_AllStickers> &&stickers_ptr);
-
-  void on_get_installed_sticker_sets_failed(StickerType sticker_type, Status error);
-
-  StickerSetId on_get_messages_sticker_set(StickerSetId sticker_set_id,
-                                           tl_object_ptr<telegram_api::messages_StickerSet> &&set_ptr, bool is_changed,
-                                           const char *source);
-
-  StickerSetId on_get_sticker_set(tl_object_ptr<telegram_api::stickerSet> &&set, bool is_changed, const char *source);
-
-  StickerSetId on_get_sticker_set_covered(tl_object_ptr<telegram_api::StickerSetCovered> &&set_ptr, bool is_changed,
-                                          const char *source);
-
-  void on_get_sticker_set_name(StickerSetId sticker_set_id,
-                               telegram_api::object_ptr<telegram_api::messages_StickerSet> &&set_ptr);
-
-  void on_get_special_sticker_set(const SpecialStickerSetType &type, StickerSetId sticker_set_id);
-
-  void on_load_special_sticker_set(const SpecialStickerSetType &type, Status result);
-
-  void on_load_sticker_set_fail(StickerSetId sticker_set_id, const Status &error);
-
-  void on_install_sticker_set(StickerSetId set_id, bool is_archived,
-                              tl_object_ptr<telegram_api::messages_StickerSetInstallResult> &&result);
-
-  void on_uninstall_sticker_set(StickerSetId set_id);
-
-  void on_update_animated_emoji_zoom();
-
-  void on_update_disable_animated_emojis();
-
-  void on_update_dice_emojis();
-
-  void on_update_dice_success_values();
-
-  void on_update_emoji_sounds();
-
-  void on_update_sticker_sets(StickerType sticker_type);
-
-  void on_update_sticker_sets_order(StickerType sticker_type, const vector<StickerSetId> &sticker_set_ids);
-
-  void on_update_move_sticker_set_to_top(StickerType sticker_type, StickerSetId sticker_set_id);
-
-  void on_sticker_set_deleted(const string &short_name);
-
-  std::pair<int32, vector<StickerSetId>> get_archived_sticker_sets(StickerType sticker_type,
-                                                                   StickerSetId offset_sticker_set_id, int32 limit,
-                                                                   bool force, Promise<Unit> &&promise);
-
-  void on_get_archived_sticker_sets(StickerType sticker_type, StickerSetId offset_sticker_set_id,
-                                    vector<tl_object_ptr<telegram_api::StickerSetCovered>> &&sticker_sets,
-                                    int32 total_count);
-
-  td_api::object_ptr<td_api::trendingStickerSets> get_featured_sticker_sets(StickerType sticker_type, int32 offset,
-                                                                            int32 limit, Promise<Unit> &&promise);
-
-  void on_get_featured_sticker_sets(StickerType sticker_type, int32 offset, int32 limit, uint32 generation,
-                                    tl_object_ptr<telegram_api::messages_FeaturedStickers> &&sticker_sets_ptr);
-
-  void on_get_featured_sticker_sets_failed(StickerType sticker_type, int32 offset, int32 limit, uint32 generation,
-                                           Status error);
-
-  vector<StickerSetId> get_attached_sticker_sets(FileId file_id, Promise<Unit> &&promise);
-
-  void on_get_attached_sticker_sets(FileId file_id,
-                                    vector<tl_object_ptr<telegram_api::StickerSetCovered>> &&sticker_sets);
-
-  void reorder_installed_sticker_sets(StickerType sticker_type, const vector<StickerSetId> &sticker_set_ids,
-                                      Promise<Unit> &&promise);
-
-  void move_sticker_set_to_top_by_sticker_id(FileId sticker_id);
-
-  void move_sticker_set_to_top_by_custom_emoji_ids(const vector<CustomEmojiId> &custom_emoji_ids);
-
-  void upload_sticker_file(UserId user_id, StickerFormat sticker_format,
-                           const td_api::object_ptr<td_api::InputFile> &input_file,
-                           Promise<td_api::object_ptr<td_api::file>> &&promise);
-
-  void get_suggested_sticker_set_name(string title, Promise<string> &&promise);
-
-  enum class CheckStickerSetNameResult : uint8 { Ok, Invalid, Occupied };
-  void check_sticker_set_name(const string &name, Promise<CheckStickerSetNameResult> &&promise);
-
-  static td_api::object_ptr<td_api::CheckStickerSetNameResult> get_check_sticker_set_name_result_object(
-      CheckStickerSetNameResult result);
-
-  void create_new_sticker_set(UserId user_id, string title, string short_name, StickerType sticker_type,
-                              bool has_text_color, vector<td_api::object_ptr<td_api::inputSticker>> &&stickers,
-                              string software, Promise<td_api::object_ptr<td_api::stickerSet>> &&promise);
-
-  void add_sticker_to_set(UserId user_id, string short_name, td_api::object_ptr<td_api::inputSticker> &&sticker,
-                          td_api::object_ptr<td_api::InputFile> &&old_sticker, Promise<Unit> &&promise);
-
-  void set_sticker_set_thumbnail(UserId user_id, string short_name, td_api::object_ptr<td_api::InputFile> &&thumbnail,
-                                 StickerFormat format, Promise<Unit> &&promise);
-
-  void set_custom_emoji_sticker_set_thumbnail(string short_name, CustomEmojiId custom_emoji_id,
-                                              Promise<Unit> &&promise);
-
-  void set_sticker_set_title(string short_name, string title, Promise<Unit> &&promise);
-
-  void delete_sticker_set(string short_name, Promise<Unit> &&promise);
-
-  void set_sticker_position_in_set(const td_api::object_ptr<td_api::InputFile> &sticker, int32 position,
-                                   Promise<Unit> &&promise);
-
-  void remove_sticker_from_set(const td_api::object_ptr<td_api::InputFile> &sticker, Promise<Unit> &&promise);
-
-  void set_sticker_emojis(const td_api::object_ptr<td_api::InputFile> &sticker, const string &emojis,
-                          Promise<Unit> &&promise);
-
-  void set_sticker_keywords(const td_api::object_ptr<td_api::InputFile> &sticker, vector<string> &&keywords,
-                            Promise<Unit> &&promise);
-
-  void set_sticker_mask_position(const td_api::object_ptr<td_api::InputFile> &sticker,
-                                 td_api::object_ptr<td_api::maskPosition> &&mask_position, Promise<Unit> &&promise);
-
-  void get_created_sticker_sets(StickerSetId offset_sticker_set_id, int32 limit,
-                                Promise<td_api::object_ptr<td_api::stickerSets>> &&promise);
-
-  vector<FileId> get_recent_stickers(bool is_attached, Promise<Unit> &&promise);
-
-  void on_get_recent_stickers(bool is_repair, bool is_attached,
-                              tl_object_ptr<telegram_api::messages_RecentStickers> &&stickers_ptr);
-
-  void on_get_recent_stickers_failed(bool is_repair, bool is_attached, Status error);
-
-  FileSourceId get_recent_stickers_file_source_id(int is_attached);
-
-  void add_recent_sticker(bool is_attached, const tl_object_ptr<td_api::InputFile> &input_file,
-                          Promise<Unit> &&promise);
-
-  void add_recent_sticker_by_id(bool is_attached, FileId sticker_id);
-
-  void remove_recent_sticker(bool is_attached, const tl_object_ptr<td_api::InputFile> &input_file,
-                             Promise<Unit> &&promise);
-
-  void send_save_recent_sticker_query(bool is_attached, FileId sticker_id, bool unsave, Promise<Unit> &&promise);
-
-  void clear_recent_stickers(bool is_attached, Promise<Unit> &&promise);
-
-  void on_update_recent_stickers_limit();
-
-  void on_update_favorite_stickers_limit();
-
-  void reload_favorite_stickers(bool force);
-
-  void repair_favorite_stickers(Promise<Unit> &&promise);
-
-  void on_get_favorite_stickers(bool is_repair,
-                                tl_object_ptr<telegram_api::messages_FavedStickers> &&favorite_stickers_ptr);
-
-  void on_get_favorite_stickers_failed(bool is_repair, Status error);
-
-  FileSourceId get_app_config_file_source_id();
-
-  FileSourceId get_favorite_stickers_file_source_id();
-
-  vector<FileId> get_favorite_stickers(Promise<Unit> &&promise);
-
-  void add_favorite_sticker(const tl_object_ptr<td_api::InputFile> &input_file, Promise<Unit> &&promise);
-
-  void add_favorite_sticker_by_id(FileId sticker_id);
-
-  void remove_favorite_sticker(const tl_object_ptr<td_api::InputFile> &input_file, Promise<Unit> &&promise);
-
-  void send_fave_sticker_query(FileId sticker_id, bool unsave, Promise<Unit> &&promise);
-
-  vector<FileId> get_attached_sticker_file_ids(const vector<int32> &int_file_ids);
-
-  vector<string> get_sticker_emojis(const tl_object_ptr<td_api::InputFile> &input_file, Promise<Unit> &&promise);
-
-  vector<std::pair<string, string>> search_emojis(const string &text, const vector<string> &input_language_codes,
-                                                  bool force, Promise<Unit> &&promise);
-
-  vector<string> get_keyword_emojis(const string &text, const vector<string> &input_language_codes, bool force,
-                                    Promise<Unit> &&promise);
-
-  void get_emoji_suggestions_url(const string &language_code, Promise<string> &&promise);
-
-  void get_emoji_groups(EmojiGroupType group_type, Promise<td_api::object_ptr<td_api::emojiCategories>> &&promise);
-
-  void reload_sticker_set(StickerSetId sticker_set_id, int64 access_hash, Promise<Unit> &&promise);
-
-  void reload_installed_sticker_sets(StickerType sticker_type, bool force);
-
-  void reload_featured_sticker_sets(StickerType sticker_type, bool force);
-
-  void reload_recent_stickers(bool is_attached, bool force);
-
-  void repair_recent_stickers(bool is_attached, Promise<Unit> &&promise);
-
-  FileId get_sticker_thumbnail_file_id(FileId file_id) const;
-
-  vector<FileId> get_sticker_file_ids(FileId file_id) const;
-
-  void delete_sticker_thumbnail(FileId file_id);
-
-  FileId dup_sticker(FileId new_id, FileId old_id);
-
-  void merge_stickers(FileId new_id, FileId old_id);
-
-  template <class StorerT>
-  void store_sticker(FileId file_id, bool in_sticker_set, StorerT &storer, const char *source) const;
-
-  template <class ParserT>
-  FileId parse_sticker(bool in_sticker_set, ParserT &parser);
-
-  void on_uploaded_sticker_file(FileUploadId file_upload_id, bool is_url,
-                                tl_object_ptr<telegram_api::MessageMedia> media, Promise<Unit> &&promise);
-
-  void on_find_stickers_by_query_success(StickerType sticker_type, const string &emoji, bool is_first,
-                                         telegram_api::object_ptr<telegram_api::messages_FoundStickers> &&stickers);
-
-  void on_find_stickers_by_query_fail(StickerType sticker_type, const string &emoji, Status &&error);
-
-  void on_find_stickers_success(const string &emoji, tl_object_ptr<telegram_api::messages_Stickers> &&stickers);
-
-  void on_find_stickers_fail(const string &emoji, Status &&error);
-
-  void on_find_custom_emojis_success(const string &emoji, tl_object_ptr<telegram_api::EmojiList> &&stickers);
-
-  void on_find_custom_emojis_fail(const string &emoji, Status &&error);
-
-  void on_find_sticker_sets_success(StickerType sticker_type, const string &query,
-                                    tl_object_ptr<telegram_api::messages_FoundStickerSets> &&sticker_sets);
-
-  void on_find_sticker_sets_fail(StickerType sticker_type, const string &query, Status &&error);
-
-  void send_get_attached_stickers_query(FileId file_id, Promise<Unit> &&promise);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
-  template <class StorerT>
-  void store_sticker_set_id(StickerSetId sticker_set_id, StorerT &storer) const;
-
-  template <class ParserT>
-  void parse_sticker_set_id(StickerSetId &sticker_set_id, ParserT &parser);
-
- private:
-  static constexpr int32 MAX_FEATURED_STICKER_SET_VIEW_DELAY = 5;
-  static constexpr int32 OLD_FEATURED_STICKER_SET_SLICE_SIZE = 20;
-
-  static constexpr int32 MAX_FOUND_STICKERS = 100;                 // server side limit
-  static constexpr size_t MAX_STICKER_SET_TITLE_LENGTH = 64;       // server side limit
-  static constexpr size_t MAX_STICKER_SET_SHORT_NAME_LENGTH = 64;  // server side limit
-  static constexpr size_t MAX_GET_CUSTOM_EMOJI_STICKERS = 200;     // server-side limit
-
-  static constexpr int32 EMOJI_KEYWORDS_UPDATE_DELAY = 3600;
-  static constexpr double MIN_ANIMATED_EMOJI_CLICK_DELAY = 0.2;
-
-  class Sticker {
-   public:
-    StickerSetId set_id_;
-    string alt_;
-    Dimensions dimensions_;
-    string minithumbnail_;
-    PhotoSize s_thumbnail_;
-    PhotoSize m_thumbnail_;
-    FileId premium_animation_file_id_;
-    FileId file_id_;
-    StickerFormat format_ = StickerFormat::Unknown;
-    StickerType type_ = StickerType::Regular;
-    bool is_premium_ = false;
-    bool has_text_color_ = false;
-    bool is_from_database_ = false;
-    bool is_being_reloaded_ = false;
-    StickerMaskPosition mask_position_;
-    int32 emoji_receive_date_ = 0;
-  };
-
-  class StickerSet {
-   public:
-    bool is_inited_ = false;  // basic information about the set
-    bool was_loaded_ = false;
-    bool is_loaded_ = false;
-    bool are_keywords_loaded_ = false;  // stored in telegram_api::messages_stickerSet
-    bool is_sticker_has_text_color_loaded_ = false;
-    bool is_sticker_channel_emoji_status_loaded_ = false;
-    bool is_created_loaded_ = false;
-
-    StickerSetId id_;
-    int64 access_hash_ = 0;
-    string title_;
-    string short_name_;
-    StickerType sticker_type_ = StickerType::Regular;
-    int32 sticker_count_ = 0;
-    int32 hash_ = 0;
-    int32 expires_at_ = 0;
-
-    string minithumbnail_;
-    PhotoSize thumbnail_;
-    int64 thumbnail_document_id_ = 0;
-
-    vector<FileId> sticker_ids_;
-    vector<int32> premium_sticker_positions_;
-    FlatHashMap<string, vector<FileId>> emoji_stickers_map_;                // emoji -> stickers
-    FlatHashMap<FileId, vector<string>, FileIdHash> sticker_emojis_map_;    // sticker -> emojis
-    mutable std::map<string, vector<FileId>> keyword_stickers_map_;         // keyword -> stickers
-    FlatHashMap<FileId, vector<string>, FileIdHash> sticker_keywords_map_;  // sticker -> keywords
-
-    bool is_created_ = false;
-    bool is_installed_ = false;
-    bool is_archived_ = false;
-    bool is_official_ = false;
-    bool has_text_color_ = false;
-    bool channel_emoji_status_ = false;
-    bool is_viewed_ = true;
-    bool is_thumbnail_reloaded_ = false;                   // stored in telegram_api::stickerSet
-    bool are_legacy_sticker_thumbnails_reloaded_ = false;  // stored in telegram_api::stickerSet
-    mutable bool was_update_sent_ = false;                 // does the sticker set is known to the client
-    bool is_changed_ = true;             // have new changes that need to be sent to the client and database
-    bool need_save_to_database_ = true;  // have new changes that need only to be saved to the database
-
-    vector<uint32> load_requests_;
-    vector<uint32> load_without_stickers_requests_;
-  };
-
-  struct PendingNewStickerSet {
-    MultiPromiseActor upload_files_multipromise_{"UploadNewStickerSetFilesMultiPromiseActor"};
-    UserId user_id_;
-    string title_;
-    string short_name_;
-    StickerType sticker_type_ = StickerType::Regular;
-    bool has_text_color_ = false;
-    vector<FileId> file_ids_;
-    vector<tl_object_ptr<td_api::inputSticker>> stickers_;
-    string software_;
-    Promise<td_api::object_ptr<td_api::stickerSet>> promise_;
-  };
-
-  struct PendingAddStickerToSet {
-    string short_name_;
-    FileId file_id_;
-    td_api::object_ptr<td_api::inputSticker> sticker_;
-    telegram_api::object_ptr<telegram_api::inputDocument> input_document_;
-    Promise<Unit> promise_;
-  };
-
-  struct PendingSetStickerSetThumbnail {
-    string short_name_;
-    FileId file_id_;
-    Promise<Unit> promise_;
-  };
-
-  struct PendingGetAnimatedEmojiClickSticker {
-    string message_text_;
-    MessageFullId message_full_id_;
-    double start_time_ = 0;
-    Promise<td_api::object_ptr<td_api::sticker>> promise_;
-  };
-
-  struct PendingOnAnimatedEmojiClicked {
-    string emoji_;
-    MessageFullId message_full_id_;
-    vector<std::pair<int, double>> clicks_;
-  };
-
-  struct SpecialStickerSet {
-    StickerSetId id_;
-    int64 access_hash_ = 0;
-    string short_name_;
-    SpecialStickerSetType type_;
-    bool is_being_loaded_ = false;
-    bool is_being_reloaded_ = false;
-  };
-
-  struct FoundStickers {
-    vector<FileId> sticker_ids_;
-    int32 cache_time_ = 300;
-    double next_reload_time_ = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  class CustomEmojiLogEvent;
-  class CustomEmojiIdsLogEvent;
-  class StickerListLogEvent;
-  class StickerSetListLogEvent;
-
-  class UploadStickerFileCallback;
-
-  int64 get_sticker_id(FileId sticker_id) const;
-
-  CustomEmojiId get_custom_emoji_id(FileId sticker_id) const;
-
-  PhotoFormat get_sticker_set_thumbnail_format(const StickerSet *sticker_set) const;
-
-  double get_sticker_set_minithumbnail_zoom(const StickerSet *sticker_set) const;
-
-  td_api::object_ptr<td_api::thumbnail> get_sticker_set_thumbnail_object(const StickerSet *sticker_set) const;
-
-  tl_object_ptr<td_api::stickerSetInfo> get_sticker_set_info_object(StickerSetId sticker_set_id, size_t covers_limit,
-                                                                    bool prefer_premium) const;
-
-  Sticker *get_sticker(FileId file_id);
-  const Sticker *get_sticker(FileId file_id) const;
-
-  static string get_found_stickers_database_key(StickerType sticker_type, const string &emoji);
-
-  void reload_found_stickers(StickerType sticker_type, string &&emoji, int64 hash);
-
-  void on_load_found_stickers_from_database(StickerType sticker_type, string emoji, string value);
-
-  void on_load_custom_emojis(string emoji, int64 hash, vector<CustomEmojiId> custom_emoji_ids,
-                             Result<td_api::object_ptr<td_api::stickers>> &&result);
-
-  void get_custom_emoji_stickers_unlimited(vector<CustomEmojiId> custom_emoji_ids,
-                                           Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  void on_get_custom_emoji_stickers_unlimited(vector<CustomEmojiId> custom_emoji_ids,
-                                              Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  void on_search_stickers_finished(StickerType sticker_type, const string &emoji, const FoundStickers &found_stickers);
-
-  void on_search_stickers_succeeded(StickerType sticker_type, const string &emoji, bool need_save_to_database,
-                                    vector<FileId> &&sticker_ids);
-
-  void on_search_stickers_failed(StickerType sticker_type, const string &emoji, Status &&error);
-
-  static string get_custom_emoji_database_key(CustomEmojiId custom_emoji_id);
-
-  void load_custom_emoji_sticker_from_database_force(CustomEmojiId custom_emoji_id);
-
-  void load_custom_emoji_sticker_from_database(CustomEmojiId custom_emoji_id, Promise<Unit> &&promise);
-
-  void on_load_custom_emoji_from_database(CustomEmojiId custom_emoji_id, string value);
-
-  void load_default_custom_emoji_ids(StickerListType sticker_list_type, bool force_reload);
-
-  void on_load_default_custom_emoji_ids_from_database(StickerListType sticker_list_type, bool force_reload,
-                                                      string value);
-
-  void reload_default_custom_emoji_ids(StickerListType sticker_list_type);
-
-  void on_get_default_custom_emoji_ids(StickerListType sticker_list_type,
-                                       Result<telegram_api::object_ptr<telegram_api::EmojiList>> r_emoji_list);
-
-  void on_get_default_custom_emoji_ids_success(StickerListType sticker_list_type,
-                                               vector<CustomEmojiId> custom_emoji_ids, int64 hash);
-
-  FileId on_get_sticker(unique_ptr<Sticker> new_sticker, bool replace);
-
-  StickerSet *get_sticker_set(StickerSetId sticker_set_id);
-
-  const StickerSet *get_sticker_set(StickerSetId sticker_set_id) const;
-
-  StickerSet *add_sticker_set(StickerSetId sticker_set_id, int64 access_hash);
-
-  static tl_object_ptr<telegram_api::InputStickerSet> get_input_sticker_set(const StickerSet *set);
-
-  StickerSetId on_get_input_sticker_set(FileId sticker_file_id, tl_object_ptr<telegram_api::InputStickerSet> &&set_ptr,
-                                        MultiPromiseActor *load_data_multipromise_ptr = nullptr);
-
-  void on_resolve_sticker_set_short_name(FileId sticker_file_id, const string &short_name);
-
-  int apply_installed_sticker_sets_order(StickerType sticker_type, const vector<StickerSetId> &sticker_set_ids);
-
-  int move_installed_sticker_set_to_top(StickerType sticker_type, StickerSetId sticker_set_id);
-
-  void on_update_sticker_set(StickerSet *sticker_set, bool is_installed, bool is_archived, bool is_changed,
-                             bool from_database = false);
-
-  static string get_sticker_set_database_key(StickerSetId set_id);
-
-  static string get_full_sticker_set_database_key(StickerSetId set_id);
-
-  string get_sticker_set_database_value(const StickerSet *s, bool with_stickers, const char *source);
-
-  void update_sticker_set(StickerSet *sticker_set, const char *source);
-
-  void load_sticker_sets(vector<StickerSetId> &&sticker_set_ids, Promise<Unit> &&promise);
-
-  void load_sticker_sets_without_stickers(vector<StickerSetId> &&sticker_set_ids, Promise<Unit> &&promise);
-
-  void on_load_sticker_set_from_database(StickerSetId sticker_set_id, bool with_stickers, string value);
-
-  void update_load_requests(StickerSet *sticker_set, bool with_stickers, const Status &status);
-
-  void update_load_request(uint32 load_request_id, const Status &status);
-
-  void do_reload_sticker_set(StickerSetId sticker_set_id,
-                             tl_object_ptr<telegram_api::InputStickerSet> &&input_sticker_set, int32 hash,
-                             Promise<Unit> &&promise, const char *source);
-
-  void on_reload_sticker_set(StickerSetId sticker_set_id, Result<Unit> &&result);
-
-  void do_get_premium_stickers(int32 limit, Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  static void read_featured_sticker_sets(void *td_void);
-
-  int64 get_sticker_sets_hash(const vector<StickerSetId> &sticker_set_ids) const;
-
-  int64 get_featured_sticker_sets_hash(StickerType sticker_type) const;
-
-  int64 get_recent_stickers_hash(const vector<FileId> &sticker_ids, const char *source) const;
-
-  void load_installed_sticker_sets(StickerType sticker_type, Promise<Unit> &&promise);
-
-  void load_featured_sticker_sets(StickerType sticker_type, Promise<Unit> &&promise);
-
-  void load_old_featured_sticker_sets(StickerType sticker_type, Promise<Unit> &&promise);
-
-  void load_recent_stickers(bool is_attached, Promise<Unit> &&promise);
-
-  void on_load_installed_sticker_sets_from_database(StickerType sticker_type, string value);
-
-  void on_load_installed_sticker_sets_finished(StickerType sticker_type,
-                                               vector<StickerSetId> &&installed_sticker_set_ids,
-                                               bool from_database = false);
-
-  void on_load_featured_sticker_sets_from_database(StickerType sticker_type, string value);
-
-  void on_load_featured_sticker_sets_finished(StickerType sticker_type, vector<StickerSetId> &&featured_sticker_set_ids,
-                                              bool is_premium);
-
-  void on_load_old_featured_sticker_sets_from_database(StickerType sticker_type, uint32 generation, string value);
-
-  void on_load_old_featured_sticker_sets_finished(StickerType sticker_type, uint32 generation,
-                                                  vector<StickerSetId> &&old_featured_sticker_set_ids);
-
-  void on_load_recent_stickers_from_database(bool is_attached, string value);
-
-  void on_load_recent_stickers_finished(bool is_attached, vector<FileId> &&recent_sticker_ids,
-                                        bool from_database = false);
-
-  td_api::object_ptr<td_api::updateInstalledStickerSets> get_update_installed_sticker_sets_object(
-      StickerType sticker_type) const;
-
-  void send_update_installed_sticker_sets(bool from_database = false);
-
-  void reload_old_featured_sticker_sets(StickerType sticker_type, uint32 generation = 0);
-
-  void on_old_featured_sticker_sets_invalidated(StickerType sticker_type);
-
-  void invalidate_old_featured_sticker_sets(StickerType sticker_type);
-
-  void set_old_featured_sticker_set_count(StickerType sticker_type, int32 count);
-
-  // must be called after every call to set_old_featured_sticker_set_count or
-  // any change of old_featured_sticker_set_ids_ size
-  void fix_old_featured_sticker_set_count(StickerType sticker_type);
-
-  static size_t get_max_featured_sticker_count(StickerType sticker_type);
-
-  static Slice get_featured_sticker_suffix(StickerType sticker_type);
-
-  td_api::object_ptr<td_api::trendingStickerSets> get_trending_sticker_sets_object(
-      StickerType sticker_type, const vector<StickerSetId> &sticker_set_ids) const;
-
-  td_api::object_ptr<td_api::updateTrendingStickerSets> get_update_trending_sticker_sets_object(
-      StickerType sticker_type) const;
-
-  void send_update_featured_sticker_sets(StickerType sticker_type);
-
-  td_api::object_ptr<td_api::updateRecentStickers> get_update_recent_stickers_object(int is_attached) const;
-
-  void send_update_recent_stickers(bool is_attached, bool from_database = false);
-
-  void save_recent_stickers_to_database(bool is_attached);
-
-  void add_recent_sticker_impl(bool is_attached, FileId sticker_id, bool add_on_server, Promise<Unit> &&promise);
-
-  int64 get_favorite_stickers_hash() const;
-
-  void add_favorite_sticker_impl(FileId sticker_id, bool add_on_server, Promise<Unit> &&promise);
-
-  void load_favorite_stickers(Promise<Unit> &&promise);
-
-  void on_load_favorite_stickers_from_database(const string &value);
-
-  void on_load_favorite_stickers_finished(vector<FileId> &&favorite_sticker_ids, bool from_database = false);
-
-  td_api::object_ptr<td_api::updateFavoriteStickers> get_update_favorite_stickers_object() const;
-
-  void send_update_favorite_stickers(bool from_database = false);
-
-  void save_favorite_stickers_to_database();
-
-  template <class StorerT>
-  void store_sticker_set(const StickerSet *sticker_set, bool with_stickers, StorerT &storer, const char *source) const;
-
-  template <class ParserT>
-  void parse_sticker_set(StickerSet *sticker_set, ParserT &parser);
-
-  std::pair<vector<FileId>, vector<FileId>> split_stickers_by_premium(const vector<FileId> &sticker_ids) const;
-
-  std::pair<vector<FileId>, vector<FileId>> split_stickers_by_premium(const StickerSet *sticker_set) const;
-
-  Result<std::tuple<FileId, bool, bool>> prepare_input_file(const tl_object_ptr<td_api::InputFile> &input_file,
-                                                            StickerFormat sticker_format, StickerType sticker_type,
-                                                            bool for_thumbnail);
-
-  Result<std::tuple<FileId, bool, bool>> prepare_input_sticker(td_api::inputSticker *sticker, StickerType sticker_type);
-
-  void finish_upload_sticker_file(FileId file_id, Promise<td_api::object_ptr<td_api::file>> &&promise);
-
-  Result<telegram_api::object_ptr<telegram_api::inputStickerSetItem>> get_input_sticker(
-      const td_api::inputSticker *sticker, FileId file_id) const;
-
-  void upload_sticker_file(UserId user_id, FileId file_id, Promise<Unit> &&promise);
-
-  void on_upload_sticker_file(FileUploadId file_upload_id,
-                              telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_sticker_file_error(FileUploadId file_upload_id, Status status);
-
-  void do_upload_sticker_file(UserId user_id, FileUploadId file_upload_id,
-                              telegram_api::object_ptr<telegram_api::InputFile> &&input_file, Promise<Unit> &&promise);
-
-  void on_new_stickers_uploaded(int64 random_id, Result<Unit> result);
-
-  void on_added_sticker_uploaded(int64 random_id, Result<Unit> result);
-
-  StickerFormat guess_sticker_set_format(const StickerSet *sticker_set) const;
-
-  void do_add_sticker_to_set(UserId user_id, string short_name, td_api::object_ptr<td_api::inputSticker> &&sticker,
-                             td_api::object_ptr<td_api::InputFile> &&old_sticker, Promise<Unit> &&promise);
-
-  void on_sticker_set_thumbnail_uploaded(int64 random_id, Result<Unit> result);
-
-  void do_set_sticker_set_thumbnail(UserId user_id, string short_name,
-                                    td_api::object_ptr<td_api::InputFile> &&thumbnail, StickerFormat format,
-                                    Promise<Unit> &&promise);
-
-  void do_set_custom_emoji_sticker_set_thumbnail(string short_name, CustomEmojiId custom_emoji_id,
-                                                 Promise<Unit> &&promise);
-
-  struct StickerInputDocument {
-    string sticker_set_unique_name_;
-    telegram_api::object_ptr<telegram_api::inputDocument> input_document_;
-  };
-  Result<StickerInputDocument> get_sticker_input_document(const tl_object_ptr<td_api::InputFile> &sticker) const;
-
-  void on_get_created_sticker_sets(Result<telegram_api::object_ptr<telegram_api::messages_myStickers>> r_my_stickers,
-                                   Promise<td_api::object_ptr<td_api::stickerSets>> &&promise);
-
-  bool update_sticker_set_cache(const StickerSet *sticker_set, Promise<Unit> &promise);
-
-  const StickerSet *get_premium_gift_sticker_set();
-
-  void return_premium_gift_sticker(int32 month_count, int64 star_count,
-                                   Promise<td_api::object_ptr<td_api::sticker>> &&promise);
-
-  static FileId get_premium_gift_option_sticker_id(const StickerSet *sticker_set, int32 month_count);
-
-  FileId get_premium_gift_option_sticker_id(int32 month_count);
-
-  void try_update_premium_gift_messages();
-
-  const StickerSet *get_animated_emoji_sticker_set();
-
-  static std::pair<FileId, int> get_animated_emoji_sticker(const StickerSet *sticker_set, const string &emoji);
-
-  std::pair<FileId, int> get_animated_emoji_sticker(const string &emoji);
-
-  FileId get_animated_emoji_sound_file_id(const string &emoji) const;
-
-  FileId get_custom_animated_emoji_sticker_id(CustomEmojiId custom_emoji_id) const;
-
-  td_api::object_ptr<td_api::animatedEmoji> get_animated_emoji_object(std::pair<FileId, int> animated_sticker,
-                                                                      FileId sound_file_id) const;
-
-  void try_update_animated_emoji_messages();
-
-  void try_update_custom_emoji_messages(CustomEmojiId custom_emoji_id);
-
-  static int get_emoji_number(Slice emoji);
-
-  vector<FileId> get_animated_emoji_click_stickers(const StickerSet *sticker_set, Slice emoji) const;
-
-  void choose_animated_emoji_click_sticker(const StickerSet *sticker_set, string message_text,
-                                           MessageFullId message_full_id, double start_time,
-                                           Promise<td_api::object_ptr<td_api::sticker>> &&promise);
-
-  void send_click_animated_emoji_message_response(FileId sticker_id,
-                                                  Promise<td_api::object_ptr<td_api::sticker>> &&promise);
-
-  void flush_sent_animated_emoji_clicks();
-
-  void flush_pending_animated_emoji_clicks();
-
-  void schedule_update_animated_emoji_clicked(const StickerSet *sticker_set, Slice emoji, MessageFullId message_full_id,
-                                              vector<std::pair<int, double>> clicks);
-
-  void send_update_animated_emoji_clicked(MessageFullId message_full_id, FileId sticker_id);
-
-  td_api::object_ptr<td_api::updateDiceEmojis> get_update_dice_emojis_object() const;
-
-  void start_up() final;
-
-  void timeout_expired() final;
-
-  void tear_down() final;
-
-  SpecialStickerSet &add_special_sticker_set(const SpecialStickerSetType &type);
-
-  static void init_special_sticker_set(SpecialStickerSet &sticker_set, int64 sticker_set_id, int64 access_hash,
-                                       string name);
-
-  void load_special_sticker_set_info_from_binlog(SpecialStickerSet &sticker_set);
-
-  void load_special_sticker_set_by_type(SpecialStickerSetType type);
-
-  void load_special_sticker_set(SpecialStickerSet &sticker_set);
-
-  void reload_special_sticker_set(SpecialStickerSet &sticker_set, int32 hash);
-
-  int is_custom_emoji_from_sticker_set(CustomEmojiId custom_emoji_id, StickerSetId sticker_set_id) const;
-
-  static void add_sticker_thumbnail(Sticker *s, PhotoSize thumbnail);
-
-  td_api::object_ptr<td_api::stickers> get_custom_emoji_stickers_object(const vector<CustomEmojiId> &custom_emoji_ids);
-
-  void on_get_custom_emoji_documents(Result<vector<telegram_api::object_ptr<telegram_api::Document>>> &&r_documents,
-                                     vector<CustomEmojiId> &&custom_emoji_ids,
-                                     Promise<td_api::object_ptr<td_api::stickers>> &&promise);
-
-  static const std::map<string, vector<FileId>> &get_sticker_set_keywords(const StickerSet *sticker_set);
-
-  void find_sticker_set_stickers(const StickerSet *sticker_set, const vector<string> &emojis, const string &query,
-                                 vector<std::pair<bool, FileId>> &result) const;
-
-  bool can_find_sticker_by_query(FileId sticker_id, const vector<string> &emojis, const string &query) const;
-
-  static string get_emoji_language_code_version_database_key(const string &language_code);
-
-  static string get_emoji_language_code_last_difference_time_database_key(const string &language_code);
-
-  static string get_language_emojis_database_key(const string &language_code, const string &text);
-
-  static string get_emoji_language_codes_database_key(const vector<string> &language_codes);
-
-  static string get_emoji_groups_database_key(EmojiGroupType group_type);
-
-  int32 get_emoji_language_code_version(const string &language_code);
-
-  double get_emoji_language_code_last_difference_time(const string &language_code);
-
-  vector<string> get_used_language_codes(const vector<string> &input_language_codes, Slice text) const;
-
-  string get_used_language_codes_string() const;
-
-  struct SearchEmojiQuery {
-    string text_;
-    vector<string> language_codes_;
-  };
-  bool prepare_search_emoji_query(const string &text, const vector<string> &input_language_codes, bool force,
-                                  Promise<Unit> &promise, SearchEmojiQuery &query);
-
-  vector<string> get_emoji_language_codes(const vector<string> &input_language_codes, Slice text,
-                                          Promise<Unit> &promise);
-
-  void load_language_codes(vector<string> language_codes, string key, Promise<Unit> &&promise);
-
-  void on_get_language_codes(const string &key, Result<vector<string>> &&result);
-
-  static vector<std::pair<string, string>> search_language_emojis(const string &language_code, const string &text);
-
-  static vector<string> get_keyword_language_emojis(const string &language_code, const string &text);
-
-  void load_emoji_keywords(const string &language_code, Promise<Unit> &&promise);
-
-  void on_get_emoji_keywords(const string &language_code,
-                             Result<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> &&result);
-
-  void load_emoji_keywords_difference(const string &language_code);
-
-  void on_get_emoji_keywords_difference(
-      const string &language_code, int32 from_version,
-      Result<telegram_api::object_ptr<telegram_api::emojiKeywordsDifference>> &&result);
-
-  void finish_get_emoji_keywords_difference(string language_code, int32 version);
-
-  void on_load_emoji_groups_from_database(EmojiGroupType group_type, string used_language_codes, string value);
-
-  void on_load_emoji_group_icons(EmojiGroupType group_type, EmojiGroupList group_list);
-
-  void reload_emoji_groups(EmojiGroupType group_type, string used_language_codes);
-
-  void on_get_emoji_groups(EmojiGroupType group_type, string used_language_codes,
-                           Result<telegram_api::object_ptr<telegram_api::messages_EmojiGroups>> r_emoji_groups);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  bool is_inited_ = false;
-
-  WaitFreeHashMap<FileId, unique_ptr<Sticker>, FileIdHash> stickers_;
-  WaitFreeHashMap<StickerSetId, unique_ptr<StickerSet>, StickerSetIdHash>
-      sticker_sets_;  // sticker_set_id -> StickerSet
-  WaitFreeHashMap<string, StickerSetId> short_name_to_sticker_set_id_;
-  FlatHashMap<StickerSetId, vector<Promise<string>>, StickerSetIdHash> sticker_set_name_load_queries_;
-
-  vector<StickerSetId> installed_sticker_set_ids_[MAX_STICKER_TYPE];
-  vector<StickerSetId> featured_sticker_set_ids_[MAX_STICKER_TYPE];
-  vector<StickerSetId> old_featured_sticker_set_ids_[MAX_STICKER_TYPE];
-  vector<FileId> recent_sticker_ids_[2];
-  vector<FileId> favorite_sticker_ids_;
-
-  double next_installed_sticker_sets_load_time_[MAX_STICKER_TYPE] = {0, 0, 0};
-  double next_featured_sticker_sets_load_time_[MAX_STICKER_TYPE] = {0, 0, 0};
-  double next_recent_stickers_load_time_[2] = {0, 0};
-  double next_favorite_stickers_load_time_ = 0;
-
-  int64 installed_sticker_sets_hash_[MAX_STICKER_TYPE] = {0, 0, 0};
-  int64 featured_sticker_sets_hash_[MAX_STICKER_TYPE] = {0, 0, 0};
-  int64 recent_stickers_hash_[2] = {0, 0};
-
-  int32 old_featured_sticker_set_count_[MAX_STICKER_TYPE] = {-1, 0, 0};
-  uint32 old_featured_sticker_set_generation_[MAX_STICKER_TYPE] = {1, 0, 0};
-
-  bool need_update_installed_sticker_sets_[MAX_STICKER_TYPE] = {false, false, false};
-  bool need_update_featured_sticker_sets_[MAX_STICKER_TYPE] = {false, false, false};
-
-  bool are_installed_sticker_sets_loaded_[MAX_STICKER_TYPE] = {false, false, false};
-  bool are_featured_sticker_sets_loaded_[MAX_STICKER_TYPE] = {false, true, false};
-  bool are_recent_stickers_loaded_[2] = {false, false};
-  bool are_favorite_stickers_loaded_ = false;
-
-  bool are_featured_sticker_sets_premium_[MAX_STICKER_TYPE] = {false, false, false};
-  bool are_old_featured_sticker_sets_invalidated_[MAX_STICKER_TYPE] = {false, false, false};
-
-  vector<Promise<Unit>> load_installed_sticker_sets_queries_[MAX_STICKER_TYPE];
-  vector<Promise<Unit>> load_featured_sticker_sets_queries_[MAX_STICKER_TYPE];
-  vector<Promise<Unit>> load_old_featured_sticker_sets_queries_;
-  vector<Promise<Unit>> load_recent_stickers_queries_[2];
-  vector<Promise<Unit>> repair_recent_stickers_queries_[2];
-  vector<Promise<Unit>> load_favorite_stickers_queries_;
-  vector<Promise<Unit>> repair_favorite_stickers_queries_;
-
-  struct StickerSetReloadQueries {
-    vector<Promise<Unit>> sent_promises_;
-    int32 sent_hash_ = 0;
-    vector<Promise<Unit>> pending_promises_;
-    int32 pending_hash_ = 0;
-  };
-  FlatHashMap<StickerSetId, unique_ptr<StickerSetReloadQueries>, StickerSetIdHash> sticker_set_reload_queries_;
-
-  vector<FileId> recent_sticker_file_ids_[2];
-  FileSourceId recent_stickers_file_source_id_[2];
-  vector<FileId> favorite_sticker_file_ids_;
-  FileSourceId favorite_stickers_file_source_id_;
-
-  FileSourceId app_config_file_source_id_;
-
-  vector<StickerSetId> archived_sticker_set_ids_[MAX_STICKER_TYPE];
-  int32 total_archived_sticker_set_count_[MAX_STICKER_TYPE] = {-1, -1, -1};
-
-  FlatHashMap<FileId, vector<StickerSetId>, FileIdHash> attached_sticker_sets_;
-
-  Hints installed_sticker_sets_hints_[MAX_STICKER_TYPE];  // search installed sticker sets by their title and name
-
-  FlatHashMap<string, FoundStickers> found_stickers_[MAX_STICKER_TYPE];
-  FlatHashMap<string, vector<std::pair<int32, Promise<td_api::object_ptr<td_api::stickers>>>>>
-      search_stickers_queries_[MAX_STICKER_TYPE];
-
-  std::unordered_map<string, vector<StickerSetId>, Hash<string>> found_sticker_sets_[MAX_STICKER_TYPE];
-  std::unordered_map<string, vector<Promise<Unit>>, Hash<string>> search_sticker_sets_queries_[MAX_STICKER_TYPE];
-
-  FlatHashSet<StickerSetId, StickerSetIdHash> pending_viewed_featured_sticker_set_ids_;
-  Timeout pending_featured_sticker_set_views_timeout_;
-
-  int32 recent_stickers_limit_ = 200;
-  int32 favorite_stickers_limit_ = 5;
-
-  FlatHashMap<SpecialStickerSetType, unique_ptr<SpecialStickerSet>, SpecialStickerSetTypeHash> special_sticker_sets_;
-
-  struct StickerSetLoadRequest {
-    Promise<Unit> promise_;
-    Status error_;
-    size_t left_queries_ = 0;
-  };
-
-  FlatHashMap<uint32, StickerSetLoadRequest> sticker_set_load_requests_;
-  uint32 current_sticker_set_load_request_ = 0;
-
-  FlatHashMap<CustomEmojiId, vector<Promise<Unit>>, CustomEmojiIdHash> custom_emoji_load_queries_;
-
-  FlatHashMap<int64, unique_ptr<PendingNewStickerSet>> pending_new_sticker_sets_;
-
-  FlatHashMap<int64, unique_ptr<PendingAddStickerToSet>> pending_add_sticker_to_sets_;
-
-  FlatHashMap<int64, unique_ptr<PendingSetStickerSetThumbnail>> pending_set_sticker_set_thumbnails_;
-
-  vector<Promise<Unit>> pending_get_animated_emoji_queries_;
-  vector<Promise<Unit>> pending_get_premium_gift_option_sticker_queries_;
-  vector<Promise<Unit>> pending_get_generic_animations_queries_;
-  vector<Promise<Unit>> pending_get_default_statuses_queries_;
-  vector<Promise<Unit>> pending_get_default_channel_statuses_queries_;
-  vector<Promise<Unit>> pending_get_default_topic_icons_queries_;
-
-  double next_click_animated_emoji_message_time_ = 0;
-  double next_update_animated_emoji_clicked_time_ = 0;
-  vector<PendingGetAnimatedEmojiClickSticker> pending_get_animated_emoji_click_stickers_;
-  vector<PendingOnAnimatedEmojiClicked> pending_on_animated_emoji_message_clicked_;
-
-  string last_clicked_animated_emoji_;
-  MessageFullId last_clicked_animated_emoji_message_full_id_;
-  std::vector<std::pair<int, double>> pending_animated_emoji_clicks_;
-
-  struct SentAnimatedEmojiClicks {
-    double send_time_ = 0.0;
-    DialogId dialog_id_;
-    string emoji_;
-  };
-  std::vector<SentAnimatedEmojiClicks> sent_animated_emoji_clicks_;
-
-  std::shared_ptr<UploadStickerFileCallback> upload_sticker_file_callback_;
-
-  FlatHashMap<FileUploadId, std::pair<UserId, Promise<Unit>>, FileUploadIdHash> being_uploaded_files_;
-
-  FlatHashMap<string, vector<string>> emoji_language_codes_;
-  FlatHashMap<string, int32> emoji_language_code_versions_;
-  FlatHashMap<string, double> emoji_language_code_last_difference_times_;
-  FlatHashSet<string> reloaded_emoji_keywords_;
-  FlatHashMap<string, vector<Promise<Unit>>> load_emoji_keywords_queries_;
-  FlatHashMap<string, vector<Promise<Unit>>> load_language_codes_queries_;
-
-  struct GiftPremiumMessages {
-    FlatHashSet<MessageFullId, MessageFullIdHash> message_full_ids_;
-    FileId sticker_id_;
-  };
-  FlatHashMap<int32, unique_ptr<GiftPremiumMessages>> premium_gift_messages_;
-
-  FlatHashMap<string, WaitFreeHashSet<MessageFullId, MessageFullIdHash>> dice_messages_;
-  FlatHashMap<string, WaitFreeHashSet<QuickReplyMessageFullId, QuickReplyMessageFullIdHash>> dice_quick_reply_messages_;
-
-  struct EmojiMessages {
-    WaitFreeHashSet<MessageFullId, MessageFullIdHash> message_full_ids_;
-    WaitFreeHashSet<QuickReplyMessageFullId, QuickReplyMessageFullIdHash> quick_reply_message_full_ids_;
-    std::pair<FileId, int> animated_emoji_sticker_;
-    FileId sound_file_id_;
-  };
-  FlatHashMap<string, unique_ptr<EmojiMessages>> emoji_messages_;
-
-  struct CustomEmojiMessages {
-    WaitFreeHashSet<MessageFullId, MessageFullIdHash> message_full_ids_;
-    WaitFreeHashSet<QuickReplyMessageFullId, QuickReplyMessageFullIdHash> quick_reply_message_full_ids_;
-    FileId sticker_id_;
-  };
-  FlatHashMap<CustomEmojiId, unique_ptr<CustomEmojiMessages>, CustomEmojiIdHash> custom_emoji_messages_;
-
-  string dice_emojis_str_;
-  vector<string> dice_emojis_;
-
-  string dice_success_values_str_;
-  vector<std::pair<int32, int32>> dice_success_values_;
-
-  string emoji_sounds_str_;
-  FlatHashMap<string, FileId> emoji_sounds_;
-
-  EmojiGroupList emoji_group_list_[MAX_EMOJI_GROUP_TYPE];
-  vector<Promise<td_api::object_ptr<td_api::emojiCategories>>> emoji_group_load_queries_[MAX_EMOJI_GROUP_TYPE];
-
-  vector<CustomEmojiId> default_custom_emoji_ids_[MAX_STICKER_LIST_TYPE];
-  int64 default_custom_emoji_ids_hash_[MAX_STICKER_LIST_TYPE] = {0, 0, 0, 0};
-  vector<Promise<td_api::object_ptr<td_api::stickers>>> default_custom_emoji_ids_load_queries_[MAX_STICKER_LIST_TYPE];
-  vector<Promise<td_api::object_ptr<td_api::emojiStatusCustomEmojis>>>
-      default_emoji_statuses_load_queries_[MAX_STICKER_LIST_TYPE];
-  bool are_default_custom_emoji_ids_loaded_[MAX_STICKER_LIST_TYPE] = {false, false, false, false};
-  bool are_default_custom_emoji_ids_being_loaded_[MAX_STICKER_LIST_TYPE] = {false, false, false, false};
-
-  WaitFreeHashMap<CustomEmojiId, FileId, CustomEmojiIdHash> custom_emoji_to_sticker_id_;
-
-  double animated_emoji_zoom_ = 0.625;
-
-  bool disable_animated_emojis_ = false;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StickersManager.hpp b/third-party/td/td/td/telegram/StickersManager.hpp
deleted file mode 100644
index 251f80e49b..0000000000
--- a/third-party/td/td/td/telegram/StickersManager.hpp
+++ /dev/null
@@ -1,488 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StickersManager.h"
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/misc.h"
-#include "td/telegram/PhotoSize.hpp"
-#include "td/telegram/PhotoSizeType.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickerMaskPosition.hpp"
-
-#include "td/utils/emoji.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-template <class StorerT>
-void StickersManager::store_sticker(FileId file_id, bool in_sticker_set, StorerT &storer, const char *source) const {
-  const Sticker *sticker = get_sticker(file_id);
-  LOG_CHECK(sticker != nullptr) << file_id << ' ' << in_sticker_set << ' ' << source;
-  bool has_sticker_set_access_hash = sticker->set_id_.is_valid() && !in_sticker_set;
-  bool has_minithumbnail = !sticker->minithumbnail_.empty();
-  bool is_tgs = sticker->format_ == StickerFormat::Tgs;
-  bool is_webm = sticker->format_ == StickerFormat::Webm;
-  bool has_premium_animation = sticker->premium_animation_file_id_.is_valid();
-  bool is_mask = sticker->type_ == StickerType::Mask;
-  bool is_emoji = sticker->type_ == StickerType::CustomEmoji;
-  bool has_emoji_receive_date = is_emoji && sticker->emoji_receive_date_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_mask);
-  STORE_FLAG(has_sticker_set_access_hash);
-  STORE_FLAG(in_sticker_set);
-  STORE_FLAG(is_tgs);
-  STORE_FLAG(has_minithumbnail);
-  STORE_FLAG(is_webm);
-  STORE_FLAG(has_premium_animation);
-  STORE_FLAG(is_emoji);
-  STORE_FLAG(sticker->is_premium_);
-  STORE_FLAG(has_emoji_receive_date);
-  STORE_FLAG(sticker->has_text_color_);
-  END_STORE_FLAGS();
-  if (!in_sticker_set) {
-    store(sticker->set_id_.get(), storer);
-    if (has_sticker_set_access_hash) {
-      auto sticker_set = get_sticker_set(sticker->set_id_);
-      CHECK(sticker_set != nullptr);
-      store(sticker_set->access_hash_, storer);
-    }
-  }
-  store(sticker->alt_, storer);
-  store(sticker->dimensions_, storer);
-  store(sticker->s_thumbnail_, storer);
-  store(sticker->m_thumbnail_, storer);
-  store(file_id, storer);
-  if (is_mask) {
-    store(sticker->mask_position_, storer);
-  }
-  if (has_minithumbnail) {
-    store(sticker->minithumbnail_, storer);
-  }
-  if (has_premium_animation) {
-    store(sticker->premium_animation_file_id_, storer);
-  }
-  if (has_emoji_receive_date) {
-    store(sticker->emoji_receive_date_, storer);
-  }
-}
-
-template <class ParserT>
-FileId StickersManager::parse_sticker(bool in_sticker_set, ParserT &parser) {
-  if (parser.get_error() != nullptr) {
-    return FileId();
-  }
-
-  auto sticker = make_unique<Sticker>();
-  bool has_sticker_set_access_hash;
-  bool in_sticker_set_stored;
-  bool has_minithumbnail;
-  bool is_tgs;
-  bool is_webm;
-  bool has_premium_animation;
-  bool is_mask;
-  bool is_emoji;
-  bool has_emoji_receive_date;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_mask);
-  PARSE_FLAG(has_sticker_set_access_hash);
-  PARSE_FLAG(in_sticker_set_stored);
-  PARSE_FLAG(is_tgs);
-  PARSE_FLAG(has_minithumbnail);
-  PARSE_FLAG(is_webm);
-  PARSE_FLAG(has_premium_animation);
-  PARSE_FLAG(is_emoji);
-  PARSE_FLAG(sticker->is_premium_);
-  PARSE_FLAG(has_emoji_receive_date);
-  PARSE_FLAG(sticker->has_text_color_);
-  END_PARSE_FLAGS();
-  if (is_webm) {
-    sticker->format_ = StickerFormat::Webm;
-  } else if (is_tgs) {
-    sticker->format_ = StickerFormat::Tgs;
-  } else {
-    sticker->format_ = StickerFormat::Webp;
-  }
-  sticker->type_ = ::td::get_sticker_type(is_mask, is_emoji);
-  if (in_sticker_set_stored != in_sticker_set) {
-    Slice data = parser.template fetch_string_raw<Slice>(parser.get_left_len());
-    for (auto c : data) {
-      if (c != '\0') {
-        parser.set_error("Invalid sticker set is stored in the database");
-        break;
-      }
-    }
-    parser.set_error("Zero sticker set is stored in the database");
-    return FileId();
-  }
-  if (!in_sticker_set) {
-    int64 set_id;
-    parse(set_id, parser);
-    sticker->set_id_ = StickerSetId(set_id);
-    if (has_sticker_set_access_hash) {
-      int64 sticker_set_access_hash;
-      parse(sticker_set_access_hash, parser);
-      add_sticker_set(sticker->set_id_, sticker_set_access_hash);
-    } else {
-      // backward compatibility
-      sticker->set_id_ = StickerSetId();
-    }
-  }
-  parse(sticker->alt_, parser);
-  parse(sticker->dimensions_, parser);
-  PhotoSize thumbnail;
-  parse(thumbnail, parser);
-  add_sticker_thumbnail(sticker.get(), thumbnail);
-  parse(thumbnail, parser);
-  add_sticker_thumbnail(sticker.get(), thumbnail);
-  parse(sticker->file_id_, parser);
-  if (is_mask) {
-    parse(sticker->mask_position_, parser);
-  }
-  if (has_minithumbnail) {
-    parse(sticker->minithumbnail_, parser);
-  }
-  if (has_premium_animation) {
-    sticker->is_premium_ = true;
-    parse(sticker->premium_animation_file_id_, parser);
-  }
-  if (has_emoji_receive_date) {
-    parse(sticker->emoji_receive_date_, parser);
-  }
-
-  if (parser.get_error() != nullptr || !sticker->file_id_.is_valid()) {
-    return FileId();
-  }
-  sticker->is_from_database_ = true;
-  return on_get_sticker(std::move(sticker), false);  // data in the database is always outdated
-}
-
-template <class StorerT>
-void StickersManager::store_sticker_set(const StickerSet *sticker_set, bool with_stickers, StorerT &storer,
-                                        const char *source) const {
-  size_t stickers_limit =
-      with_stickers ? sticker_set->sticker_ids_.size() : get_max_featured_sticker_count(sticker_set->sticker_type_);
-  bool is_full = sticker_set->sticker_ids_.size() <= stickers_limit;
-  bool was_loaded = sticker_set->was_loaded_ && is_full;
-  bool is_loaded = sticker_set->is_loaded_ && is_full;
-  bool has_expires_at = !sticker_set->is_installed_ && sticker_set->expires_at_ != 0;
-  bool has_thumbnail = sticker_set->thumbnail_.file_id.is_valid();
-  bool has_minithumbnail = !sticker_set->minithumbnail_.empty();
-  bool is_masks = sticker_set->sticker_type_ == StickerType::Mask;
-  bool is_emojis = sticker_set->sticker_type_ == StickerType::CustomEmoji;
-  bool has_thumbnail_document_id = sticker_set->thumbnail_document_id_ != 0;
-  bool is_mixed_format = true;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(sticker_set->is_inited_);
-  STORE_FLAG(was_loaded);
-  STORE_FLAG(is_loaded);
-  STORE_FLAG(sticker_set->is_installed_);
-  STORE_FLAG(sticker_set->is_archived_);
-  STORE_FLAG(sticker_set->is_official_);  // 5
-  STORE_FLAG(is_masks);
-  STORE_FLAG(sticker_set->is_viewed_);
-  STORE_FLAG(has_expires_at);
-  STORE_FLAG(has_thumbnail);
-  STORE_FLAG(sticker_set->is_thumbnail_reloaded_);  // 10
-  STORE_FLAG(false);
-  STORE_FLAG(sticker_set->are_legacy_sticker_thumbnails_reloaded_);
-  STORE_FLAG(has_minithumbnail);
-  STORE_FLAG(false);
-  STORE_FLAG(is_emojis);  // 15
-  STORE_FLAG(has_thumbnail_document_id);
-  STORE_FLAG(sticker_set->are_keywords_loaded_);
-  STORE_FLAG(sticker_set->is_sticker_has_text_color_loaded_);
-  STORE_FLAG(sticker_set->has_text_color_);
-  STORE_FLAG(sticker_set->is_sticker_channel_emoji_status_loaded_);  // 20
-  STORE_FLAG(sticker_set->channel_emoji_status_);
-  STORE_FLAG(is_mixed_format);
-  STORE_FLAG(sticker_set->is_created_);
-  STORE_FLAG(sticker_set->is_created_loaded_);
-  END_STORE_FLAGS();
-  store(sticker_set->id_.get(), storer);
-  store(sticker_set->access_hash_, storer);
-  if (sticker_set->is_inited_) {
-    store(sticker_set->title_, storer);
-    store(sticker_set->short_name_, storer);
-    store(sticker_set->sticker_count_, storer);
-    store(sticker_set->hash_, storer);
-    if (has_expires_at) {
-      store(sticker_set->expires_at_, storer);
-    }
-    if (has_thumbnail) {
-      store(sticker_set->thumbnail_, storer);
-    }
-    if (has_minithumbnail) {
-      store(sticker_set->minithumbnail_, storer);
-    }
-    if (has_thumbnail_document_id) {
-      store(sticker_set->thumbnail_document_id_, storer);
-    }
-
-    auto stored_sticker_count = narrow_cast<uint32>(is_full ? sticker_set->sticker_ids_.size() : stickers_limit);
-    store(stored_sticker_count, storer);
-    for (uint32 i = 0; i < stored_sticker_count; i++) {
-      auto sticker_id = sticker_set->sticker_ids_[i];
-      store_sticker(sticker_id, true, storer, source);
-
-      if (was_loaded) {
-        auto it = sticker_set->sticker_emojis_map_.find(sticker_id);
-        if (it != sticker_set->sticker_emojis_map_.end()) {
-          store(it->second, storer);
-        } else {
-          store(vector<string>(), storer);
-        }
-      }
-      if (sticker_set->are_keywords_loaded_) {
-        auto it = sticker_set->sticker_keywords_map_.find(sticker_id);
-        if (it != sticker_set->sticker_keywords_map_.end()) {
-          store(it->second, storer);
-        } else {
-          store(vector<string>(), storer);
-        }
-      }
-    }
-  }
-}
-
-template <class ParserT>
-void StickersManager::parse_sticker_set(StickerSet *sticker_set, ParserT &parser) {
-  CHECK(sticker_set != nullptr);
-  CHECK(!sticker_set->was_loaded_);
-  bool was_inited = sticker_set->is_inited_;
-  bool is_installed;
-  bool is_archived;
-  bool is_official;
-  bool is_masks;
-  bool has_expires_at;
-  bool has_thumbnail;
-  bool legacy_is_tgs;
-  bool has_minithumbnail;
-  bool legacy_is_webm;
-  bool is_emojis;
-  bool has_thumbnail_document_id;
-  bool has_text_color;
-  bool channel_emoji_status;
-  bool is_mixed_format;
-  bool is_created;
-  bool is_created_loaded;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(sticker_set->is_inited_);
-  PARSE_FLAG(sticker_set->was_loaded_);
-  PARSE_FLAG(sticker_set->is_loaded_);
-  PARSE_FLAG(is_installed);
-  PARSE_FLAG(is_archived);
-  PARSE_FLAG(is_official);
-  PARSE_FLAG(is_masks);
-  PARSE_FLAG(sticker_set->is_viewed_);
-  PARSE_FLAG(has_expires_at);
-  PARSE_FLAG(has_thumbnail);
-  PARSE_FLAG(sticker_set->is_thumbnail_reloaded_);
-  PARSE_FLAG(legacy_is_tgs);
-  PARSE_FLAG(sticker_set->are_legacy_sticker_thumbnails_reloaded_);
-  PARSE_FLAG(has_minithumbnail);
-  PARSE_FLAG(legacy_is_webm);
-  PARSE_FLAG(is_emojis);
-  PARSE_FLAG(has_thumbnail_document_id);
-  PARSE_FLAG(sticker_set->are_keywords_loaded_);
-  PARSE_FLAG(sticker_set->is_sticker_has_text_color_loaded_);
-  PARSE_FLAG(has_text_color);
-  PARSE_FLAG(sticker_set->is_sticker_channel_emoji_status_loaded_);
-  PARSE_FLAG(channel_emoji_status);
-  PARSE_FLAG(is_mixed_format);
-  PARSE_FLAG(is_created);
-  PARSE_FLAG(is_created_loaded);
-  END_PARSE_FLAGS();
-  int64 sticker_set_id;
-  int64 access_hash;
-  parse(sticker_set_id, parser);
-  parse(access_hash, parser);
-  if (sticker_set->id_.get() != sticker_set_id) {
-    return parser.set_error("Invalid sticker set data stored in the database");
-  }
-  (void)access_hash;  // unused, because only known sticker sets with access hash can be loaded from database
-
-  auto sticker_type = ::td::get_sticker_type(is_masks, is_emojis);
-  if (!is_emojis) {
-    sticker_set->is_sticker_has_text_color_loaded_ = true;
-    sticker_set->is_sticker_channel_emoji_status_loaded_ = true;
-  }
-
-  if (sticker_set->is_inited_) {
-    string title;
-    string short_name;
-    string minithumbnail;
-    PhotoSize thumbnail;
-    int64 thumbnail_document_id = 0;
-    int32 sticker_count;
-    int32 hash;
-    int32 expires_at = 0;
-    parse(title, parser);
-    parse(short_name, parser);
-    parse(sticker_count, parser);
-    parse(hash, parser);
-    if (has_expires_at) {
-      parse(expires_at, parser);
-    }
-    if (has_thumbnail) {
-      parse(thumbnail, parser);
-    }
-    if (has_minithumbnail) {
-      parse(minithumbnail, parser);
-    }
-    if (has_thumbnail_document_id) {
-      parse(thumbnail_document_id, parser);
-    }
-    if (!is_mixed_format && thumbnail.file_id.is_valid()) {
-      if (legacy_is_webm) {
-        thumbnail.type = PhotoSizeType('v');
-      } else if (legacy_is_tgs) {
-        thumbnail.type = PhotoSizeType('a');
-      } else {
-        thumbnail.type = PhotoSizeType('s');
-      }
-    }
-    if (!was_inited) {
-      sticker_set->title_ = std::move(title);
-      sticker_set->short_name_ = std::move(short_name);
-      sticker_set->minithumbnail_ = std::move(minithumbnail);
-      sticker_set->thumbnail_ = std::move(thumbnail);
-      sticker_set->thumbnail_document_id_ = thumbnail_document_id;
-      sticker_set->sticker_count_ = sticker_count;
-      sticker_set->hash_ = hash;
-      sticker_set->expires_at_ = expires_at;
-      sticker_set->is_official_ = is_official;
-      sticker_set->sticker_type_ = sticker_type;
-      sticker_set->has_text_color_ = has_text_color;
-      sticker_set->channel_emoji_status_ = channel_emoji_status;
-      sticker_set->is_created_ = is_created;
-      sticker_set->is_created_loaded_ = is_created_loaded;
-
-      auto cleaned_username = clean_username(sticker_set->short_name_);
-      if (!cleaned_username.empty()) {
-        short_name_to_sticker_set_id_.set(cleaned_username, sticker_set->id_);
-      }
-      on_update_sticker_set(sticker_set, is_installed, is_archived, false, true);
-    } else {
-      if (sticker_set->title_ != title || sticker_set->minithumbnail_ != minithumbnail ||
-          sticker_set->thumbnail_ != thumbnail || sticker_set->thumbnail_document_id_ != thumbnail_document_id ||
-          sticker_set->is_official_ != is_official || sticker_set->has_text_color_ != has_text_color ||
-          sticker_set->channel_emoji_status_ != channel_emoji_status || sticker_set->is_created_ != is_created ||
-          sticker_set->is_created_loaded_ != is_created_loaded) {
-        sticker_set->is_changed_ = true;
-      }
-      if (sticker_set->short_name_ != short_name) {
-        LOG(INFO) << "Short name of " << sticker_set->id_ << " has changed from \"" << short_name << "\" to \""
-                  << sticker_set->short_name_ << "\"";
-        sticker_set->is_changed_ = true;
-      }
-      if (sticker_set->is_loaded_ && (sticker_set->sticker_count_ != sticker_count || sticker_set->hash_ != hash)) {
-        sticker_set->is_loaded_ = false;
-        sticker_set->is_changed_ = true;
-      }
-      if (sticker_set->sticker_type_ != sticker_type) {
-        LOG(ERROR) << "Type of " << sticker_set->id_ << " has changed from \"" << sticker_type << "\" to \""
-                   << sticker_set->sticker_type_ << "\"";
-      }
-    }
-
-    uint32 stored_sticker_count;
-    parse(stored_sticker_count, parser);
-    sticker_set->sticker_ids_.clear();
-    sticker_set->premium_sticker_positions_.clear();
-    if (sticker_set->was_loaded_) {
-      sticker_set->emoji_stickers_map_.clear();
-      sticker_set->sticker_emojis_map_.clear();
-      sticker_set->keyword_stickers_map_.clear();
-      sticker_set->sticker_keywords_map_.clear();
-    }
-    for (uint32 i = 0; i < stored_sticker_count; i++) {
-      auto sticker_id = parse_sticker(true, parser);
-      if (parser.get_error() != nullptr) {
-        return;
-      }
-      if (!sticker_id.is_valid()) {
-        return parser.set_error("Receive invalid sticker in a sticker set");
-      }
-      sticker_set->sticker_ids_.push_back(sticker_id);
-
-      Sticker *sticker = get_sticker(sticker_id);
-      CHECK(sticker != nullptr);
-      if (sticker->set_id_ != sticker_set->id_) {
-        LOG_IF(ERROR, sticker->set_id_.is_valid()) << "Sticker " << sticker_id << " set_id has changed";
-        sticker->set_id_ = sticker_set->id_;
-        if (sticker->has_text_color_) {
-          sticker_set->has_text_color_ = true;
-        }
-      }
-      if (sticker->is_premium_) {
-        sticker_set->premium_sticker_positions_.push_back(static_cast<int32>(sticker_set->sticker_ids_.size() - 1));
-      }
-
-      if (sticker_set->was_loaded_) {
-        vector<string> emojis;
-        parse(emojis, parser);
-        for (auto &emoji : emojis) {
-          auto cleaned_emoji = remove_emoji_modifiers(emoji);
-          if (!cleaned_emoji.empty()) {
-            auto &sticker_ids = sticker_set->emoji_stickers_map_[cleaned_emoji];
-            if (sticker_ids.empty() || sticker_ids.back() != sticker_id) {
-              sticker_ids.push_back(sticker_id);
-            }
-          } else {
-            LOG(INFO) << "Sticker " << sticker_id << " in " << sticker_set_id << '/' << sticker_set->short_name_
-                      << " has an empty emoji";
-          }
-        }
-        sticker_set->sticker_emojis_map_[sticker_id] = std::move(emojis);
-      }
-      if (sticker_set->are_keywords_loaded_) {
-        vector<string> keywords;
-        parse(keywords, parser);
-        if (!keywords.empty()) {
-          sticker_set->sticker_keywords_map_.emplace(sticker_id, std::move(keywords));
-        }
-      }
-    }
-    if (expires_at > sticker_set->expires_at_) {
-      sticker_set->expires_at_ = expires_at;
-    }
-
-    if (!check_utf8(sticker_set->title_)) {
-      return parser.set_error("Have invalid sticker set title");
-    }
-    if (!check_utf8(sticker_set->short_name_)) {
-      return parser.set_error("Have invalid sticker set name");
-    }
-  }
-}
-
-template <class StorerT>
-void StickersManager::store_sticker_set_id(StickerSetId sticker_set_id, StorerT &storer) const {
-  CHECK(sticker_set_id.is_valid());
-  const StickerSet *sticker_set = get_sticker_set(sticker_set_id);
-  CHECK(sticker_set != nullptr);
-  store(sticker_set_id.get(), storer);
-  store(sticker_set->access_hash_, storer);
-}
-
-template <class ParserT>
-void StickersManager::parse_sticker_set_id(StickerSetId &sticker_set_id, ParserT &parser) {
-  int64 set_id;
-  parse(set_id, parser);
-  sticker_set_id = StickerSetId(set_id);
-  int64 sticker_set_access_hash;
-  parse(sticker_set_access_hash, parser);
-  add_sticker_set(sticker_set_id, sticker_set_access_hash);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StorageManager.cpp b/third-party/td/td/td/telegram/StorageManager.cpp
deleted file mode 100644
index 4c466aadf0..0000000000
--- a/third-party/td/td/td/telegram/StorageManager.cpp
+++ /dev/null
@@ -1,366 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StorageManager.h"
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileGcWorker.h"
-#include "td/telegram/files/FileStatsWorker.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/db/SqliteDb.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-tl_object_ptr<td_api::databaseStatistics> DatabaseStats::get_database_statistics_object() const {
-  return make_tl_object<td_api::databaseStatistics>(debug);
-}
-
-StorageManager::StorageManager(ActorShared<> parent, int32 scheduler_id)
-    : parent_(std::move(parent)), scheduler_id_(scheduler_id) {
-}
-
-void StorageManager::start_up() {
-  load_last_gc_timestamp();
-  schedule_next_gc();
-
-  load_fast_stat();
-}
-
-void StorageManager::on_new_file(int64 size, int64 real_size, int32 cnt) {
-  LOG(INFO) << "Add " << cnt << " file of size " << size << " with real size " << real_size
-            << " to fast storage statistics";
-  fast_stat_.cnt += cnt;
-#if TD_WINDOWS
-  auto add_size = size;
-#else
-  auto add_size = real_size;
-#endif
-  fast_stat_.size += add_size;
-
-  if (fast_stat_.cnt < 0 || fast_stat_.size < 0) {
-    LOG(ERROR) << "Wrong fast stat after adding size " << add_size << " and cnt " << cnt;
-    fast_stat_ = FileTypeStat();
-  }
-  save_fast_stat();
-}
-
-void StorageManager::get_storage_stats(bool need_all_files, int32 dialog_limit, Promise<FileStats> promise) {
-  if (is_closed_) {
-    return promise.set_error(Global::request_aborted_error());
-  }
-  if (!pending_storage_stats_.empty()) {
-    if (stats_dialog_limit_ == dialog_limit && need_all_files == stats_need_all_files_) {
-      pending_storage_stats_.emplace_back(std::move(promise));
-      return;
-    }
-    //TODO group same queries
-    close_stats_worker();
-  }
-  if (!pending_run_gc_[0].empty() || !pending_run_gc_[1].empty()) {
-    close_gc_worker();
-  }
-  stats_dialog_limit_ = dialog_limit;
-  stats_need_all_files_ = need_all_files;
-  pending_storage_stats_.emplace_back(std::move(promise));
-
-  create_stats_worker();
-  send_closure(stats_worker_, &FileStatsWorker::get_stats, need_all_files, stats_dialog_limit_ != 0,
-               PromiseCreator::lambda(
-                   [actor_id = actor_id(this), stats_generation = stats_generation_](Result<FileStats> file_stats) {
-                     send_closure(actor_id, &StorageManager::on_file_stats, std::move(file_stats), stats_generation);
-                   }));
-}
-
-void StorageManager::get_storage_stats_fast(Promise<FileStatsFast> promise) {
-  promise.set_value(FileStatsFast(fast_stat_.size, fast_stat_.cnt, get_database_size(),
-                                  get_language_pack_database_size(), get_log_size()));
-}
-
-void StorageManager::get_database_stats(Promise<DatabaseStats> promise) {
-  //TODO: use another thread
-  auto r_stats = G()->td_db()->get_stats();
-  if (r_stats.is_error()) {
-    promise.set_error(r_stats.move_as_error());
-  } else {
-    promise.set_value(DatabaseStats(r_stats.move_as_ok()));
-  }
-}
-
-void StorageManager::update_use_storage_optimizer() {
-  schedule_next_gc();
-}
-
-void StorageManager::run_gc(FileGcParameters parameters, bool return_deleted_file_statistics,
-                            Promise<FileStats> promise) {
-  if (is_closed_) {
-    return promise.set_error(Global::request_aborted_error());
-  }
-  if (!pending_run_gc_[0].empty() || !pending_run_gc_[1].empty()) {
-    close_gc_worker();
-  }
-
-  bool split_by_owner_dialog_id = !parameters.owner_dialog_ids_.empty() ||
-                                  !parameters.exclude_owner_dialog_ids_.empty() || parameters.dialog_limit_ != 0;
-  get_storage_stats(
-      true /*need_all_files*/, split_by_owner_dialog_id,
-      PromiseCreator::lambda(
-          [actor_id = actor_id(this), parameters = std::move(parameters)](Result<FileStats> file_stats) mutable {
-            send_closure(actor_id, &StorageManager::on_all_files, std::move(parameters), std::move(file_stats));
-          }));
-
-  //NB: get_storage_stats will cancel all garbage collection queries, so promise needs to be added after the call
-  pending_run_gc_[return_deleted_file_statistics].push_back(std::move(promise));
-}
-
-void StorageManager::on_file_stats(Result<FileStats> r_file_stats, uint32 generation) {
-  if (generation != stats_generation_) {
-    return;
-  }
-  if (r_file_stats.is_error()) {
-    fail_promises(pending_storage_stats_, r_file_stats.move_as_error());
-    return;
-  }
-
-  update_fast_stats(r_file_stats.ok());
-  send_stats(r_file_stats.move_as_ok(), stats_dialog_limit_, std::move(pending_storage_stats_));
-}
-
-void StorageManager::create_stats_worker() {
-  CHECK(!is_closed_);
-  if (stats_worker_.empty()) {
-    stats_worker_ =
-        create_actor_on_scheduler<FileStatsWorker>("FileStatsWorker", scheduler_id_, create_reference(),
-                                                   stats_cancellation_token_source_.get_cancellation_token());
-  }
-}
-
-void StorageManager::on_all_files(FileGcParameters gc_parameters, Result<FileStats> r_file_stats) {
-  int32 dialog_limit = gc_parameters.dialog_limit_;
-  if (is_closed_ && r_file_stats.is_ok()) {
-    r_file_stats = Global::request_aborted_error();
-  }
-  if (r_file_stats.is_error()) {
-    return on_gc_finished(dialog_limit, r_file_stats.move_as_error());
-  }
-
-  create_gc_worker();
-
-  send_closure(gc_worker_, &FileGcWorker::run_gc, std::move(gc_parameters), r_file_stats.ok_ref().get_all_files(),
-               !G()->get_option_string("my_phone_number").empty(),
-               PromiseCreator::lambda([actor_id = actor_id(this), dialog_limit](Result<FileGcResult> r_file_gc_result) {
-                 send_closure(actor_id, &StorageManager::on_gc_finished, dialog_limit, std::move(r_file_gc_result));
-               }));
-}
-
-int64 StorageManager::get_file_size(CSlice path) {
-  auto r_info = stat(path);
-  if (r_info.is_error()) {
-    return 0;
-  }
-
-  auto size = r_info.ok().real_size_;
-  LOG(DEBUG) << "Add file \"" << path << "\" of size " << size << " to fast storage statistics";
-  return size;
-}
-
-int64 StorageManager::get_database_size() {
-  int64 size = 0;
-  G()->td_db()->with_db_path([&size](CSlice path) { size += get_file_size(path); });
-  return size;
-}
-
-int64 StorageManager::get_language_pack_database_size() {
-  int64 size = 0;
-  auto path = G()->get_option_string("language_pack_database_path");
-  if (!path.empty()) {
-    SqliteDb::with_db_path(path, [&size](CSlice path) { size += get_file_size(path); });
-  }
-  return size;
-}
-
-int64 StorageManager::get_log_size() {
-  int64 size = 0;
-  for (auto &log_path : log_interface->get_file_paths()) {
-    size += get_file_size(log_path);
-  }
-  return size;
-}
-
-void StorageManager::create_gc_worker() {
-  CHECK(!is_closed_);
-  if (gc_worker_.empty()) {
-    gc_worker_ = create_actor_on_scheduler<FileGcWorker>("FileGcWorker", scheduler_id_, create_reference(),
-                                                         gc_cancellation_token_source_.get_cancellation_token());
-  }
-}
-
-void StorageManager::on_gc_finished(int32 dialog_limit, Result<FileGcResult> r_file_gc_result) {
-  if (r_file_gc_result.is_error()) {
-    if (r_file_gc_result.error().code() != 500) {
-      LOG(ERROR) << "GC failed: " << r_file_gc_result.error();
-    }
-    auto promises = std::move(pending_run_gc_[0]);
-    append(promises, std::move(pending_run_gc_[1]));
-    pending_run_gc_[0].clear();
-    pending_run_gc_[1].clear();
-    fail_promises(promises, r_file_gc_result.move_as_error());
-    return;
-  }
-
-  update_fast_stats(r_file_gc_result.ok().kept_file_stats_);
-
-  auto kept_file_promises = std::move(pending_run_gc_[0]);
-  auto removed_file_promises = std::move(pending_run_gc_[1]);
-  send_stats(std::move(r_file_gc_result.ok_ref().kept_file_stats_), dialog_limit, std::move(kept_file_promises));
-  send_stats(std::move(r_file_gc_result.ok_ref().removed_file_stats_), dialog_limit, std::move(removed_file_promises));
-}
-
-void StorageManager::save_fast_stat() {
-  G()->td_db()->get_binlog_pmc()->set("fast_file_stat", log_event_store(fast_stat_).as_slice().str());
-}
-
-void StorageManager::load_fast_stat() {
-  auto status = log_event_parse(fast_stat_, G()->td_db()->get_binlog_pmc()->get("fast_file_stat"));
-  if (status.is_error()) {
-    fast_stat_ = FileTypeStat();
-  }
-  LOG(INFO) << "Loaded fast storage statistics with " << fast_stat_.cnt << " files of total size " << fast_stat_.size;
-}
-
-void StorageManager::update_fast_stats(const FileStats &stats) {
-  fast_stat_ = stats.get_total_nontemp_stat();
-  LOG(INFO) << "Recalculate fast storage statistics to " << fast_stat_.cnt << " files of total size "
-            << fast_stat_.size;
-  save_fast_stat();
-}
-
-void StorageManager::send_stats(FileStats &&stats, int32 dialog_limit, std::vector<Promise<FileStats>> &&promises) {
-  if (promises.empty()) {
-    return;
-  }
-
-  stats.apply_dialog_limit(dialog_limit);
-  auto dialog_ids = stats.get_dialog_ids();
-
-  auto promise = PromiseCreator::lambda(
-      [promises = std::move(promises), stats = std::move(stats)](vector<DialogId> dialog_ids) mutable {
-        stats.apply_dialog_ids(dialog_ids);
-        auto size = promises.size();
-        size--;
-        for (size_t i = 0; i < size; i++) {
-          if (promises[i]) {
-            promises[i].set_value(FileStats(stats));
-          }
-        }
-        promises[size].set_value(std::move(stats));
-      });
-
-  send_closure(G()->messages_manager(), &MessagesManager::load_dialogs, std::move(dialog_ids), std::move(promise));
-}
-
-ActorShared<> StorageManager::create_reference() {
-  ref_cnt_++;
-  return actor_shared(this, 1);
-}
-
-void StorageManager::hangup_shared() {
-  ref_cnt_--;
-  if (ref_cnt_ == 0) {
-    stop();
-  }
-}
-
-void StorageManager::close_stats_worker() {
-  fail_promises(pending_storage_stats_, Global::request_aborted_error());
-  stats_generation_++;
-  stats_worker_.reset();
-  stats_cancellation_token_source_.cancel();
-}
-
-void StorageManager::close_gc_worker() {
-  auto promises = std::move(pending_run_gc_[0]);
-  append(promises, std::move(pending_run_gc_[1]));
-  pending_run_gc_[0].clear();
-  pending_run_gc_[1].clear();
-  fail_promises(promises, Global::request_aborted_error());
-  gc_worker_.reset();
-  gc_cancellation_token_source_.cancel();
-}
-
-void StorageManager::hangup() {
-  is_closed_ = true;
-  close_stats_worker();
-  close_gc_worker();
-  hangup_shared();
-}
-
-uint32 StorageManager::load_last_gc_timestamp() {
-  last_gc_timestamp_ = to_integer<uint32>(G()->td_db()->get_binlog_pmc()->get("files_gc_ts"));
-  return last_gc_timestamp_;
-}
-
-void StorageManager::save_last_gc_timestamp() {
-  last_gc_timestamp_ = static_cast<uint32>(Clocks::system());
-  G()->td_db()->get_binlog_pmc()->set("files_gc_ts", to_string(last_gc_timestamp_));
-}
-
-void StorageManager::schedule_next_gc() {
-  if (!G()->get_option_boolean("use_storage_optimizer")) {
-    next_gc_at_ = 0;
-    cancel_timeout();
-    LOG(INFO) << "No next file clean up is scheduled";
-    return;
-  }
-  auto sys_time = static_cast<uint32>(Clocks::system());
-
-  auto next_gc_at = last_gc_timestamp_ + GC_EACH;
-  if (next_gc_at < sys_time) {
-    next_gc_at = sys_time;
-  }
-  if (next_gc_at > sys_time + GC_EACH) {
-    next_gc_at = sys_time + GC_EACH;
-  }
-  next_gc_at += Random::fast(GC_DELAY, GC_DELAY + GC_RAND_DELAY);
-  CHECK(next_gc_at >= sys_time);
-  auto next_gc_in = next_gc_at - sys_time;
-
-  LOG(INFO) << "Schedule next file clean up in " << next_gc_in;
-  next_gc_at_ = Time::now() + next_gc_in;
-  set_timeout_at(next_gc_at_);
-}
-
-void StorageManager::timeout_expired() {
-  if (next_gc_at_ == 0) {
-    return;
-  }
-  if (!pending_run_gc_[0].empty() || !pending_run_gc_[1].empty() || !pending_storage_stats_.empty()) {
-    set_timeout_in(60);
-    return;
-  }
-  next_gc_at_ = 0;
-  run_gc({}, false, PromiseCreator::lambda([actor_id = actor_id(this)](Result<FileStats> r_stats) {
-           if (!r_stats.is_error() || r_stats.error().code() != 500) {
-             // do not save garbage collection timestamp if request was canceled
-             send_closure(actor_id, &StorageManager::save_last_gc_timestamp);
-           }
-           send_closure(actor_id, &StorageManager::schedule_next_gc);
-         }));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StorageManager.h b/third-party/td/td/td/telegram/StorageManager.h
deleted file mode 100644
index 550c5b343e..0000000000
--- a/third-party/td/td/td/telegram/StorageManager.h
+++ /dev/null
@@ -1,105 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileGcWorker.h"
-#include "td/telegram/files/FileStats.h"
-#include "td/telegram/files/FileStatsWorker.h"
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/CancellationToken.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-struct DatabaseStats {
-  string debug;
-  DatabaseStats() = default;
-  explicit DatabaseStats(string debug) : debug(std::move(debug)) {
-  }
-  tl_object_ptr<td_api::databaseStatistics> get_database_statistics_object() const;
-};
-
-class StorageManager final : public Actor {
- public:
-  StorageManager(ActorShared<> parent, int32 scheduler_id);
-  void get_storage_stats(bool need_all_files, int32 dialog_limit, Promise<FileStats> promise);
-  void get_storage_stats_fast(Promise<FileStatsFast> promise);
-  void get_database_stats(Promise<DatabaseStats> promise);
-  void run_gc(FileGcParameters parameters, bool return_deleted_file_statistics, Promise<FileStats> promise);
-  void update_use_storage_optimizer();
-
-  void on_new_file(int64 size, int64 real_size, int32 cnt);
-
- private:
-  static constexpr int32 GC_EACH = 60 * 60 * 24;  // 1 day
-  static constexpr int32 GC_DELAY = 60;
-  static constexpr int32 GC_RAND_DELAY = 60 * 15;
-
-  ActorShared<> parent_;
-
-  int32 scheduler_id_;
-
-  // get stats
-  ActorOwn<FileStatsWorker> stats_worker_;
-  std::vector<Promise<FileStats>> pending_storage_stats_;
-  uint32 stats_generation_{0};
-  int32 stats_dialog_limit_{0};
-  bool stats_need_all_files_{false};
-
-  FileTypeStat fast_stat_;
-
-  CancellationTokenSource stats_cancellation_token_source_;
-  CancellationTokenSource gc_cancellation_token_source_;
-
-  void on_file_stats(Result<FileStats> r_file_stats, uint32 generation);
-  void create_stats_worker();
-  void update_fast_stats(const FileStats &stats);
-  static void send_stats(FileStats &&stats, int32 dialog_limit, std::vector<Promise<FileStats>> &&promises);
-
-  void save_fast_stat();
-  void load_fast_stat();
-  static int64 get_database_size();
-  static int64 get_language_pack_database_size();
-  static int64 get_log_size();
-  static int64 get_file_size(CSlice path);
-
-  // RefCnt
-  int32 ref_cnt_{1};
-  bool is_closed_{false};
-  ActorShared<> create_reference();
-  void start_up() final;
-  void hangup_shared() final;
-  void hangup() final;
-
-  // Gc
-  ActorOwn<FileGcWorker> gc_worker_;
-  std::vector<Promise<FileStats>> pending_run_gc_[2];
-
-  uint32 last_gc_timestamp_ = 0;
-  double next_gc_at_ = 0;
-
-  void on_all_files(FileGcParameters gc_parameters, Result<FileStats> r_file_stats);
-  void create_gc_worker();
-  void on_gc_finished(int32 dialog_limit, Result<FileGcResult> r_file_gc_result);
-
-  void close_stats_worker();
-  void close_gc_worker();
-
-  uint32 load_last_gc_timestamp();
-  void save_last_gc_timestamp();
-  void schedule_next_gc();
-
-  void timeout_expired() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryContent.cpp b/third-party/td/td/td/telegram/StoryContent.cpp
deleted file mode 100644
index 643765be0b..0000000000
--- a/third-party/td/td/td/telegram/StoryContent.cpp
+++ /dev/null
@@ -1,507 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StoryContent.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/VideosManager.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/tl_helpers.h"
-
-#include <cmath>
-
-namespace td {
-
-class StoryContentPhoto final : public StoryContent {
- public:
-  Photo photo_;
-
-  StoryContentPhoto() = default;
-  explicit StoryContentPhoto(Photo &&photo) : photo_(std::move(photo)) {
-  }
-
-  StoryContentType get_type() const final {
-    return StoryContentType::Photo;
-  }
-};
-
-class StoryContentVideo final : public StoryContent {
- public:
-  FileId file_id_;
-  FileId alt_file_id_;
-
-  StoryContentVideo() = default;
-  StoryContentVideo(FileId file_id, FileId alt_file_id) : file_id_(file_id), alt_file_id_(alt_file_id) {
-  }
-
-  StoryContentType get_type() const final {
-    return StoryContentType::Video;
-  }
-};
-
-class StoryContentUnsupported final : public StoryContent {
- public:
-  static constexpr int32 CURRENT_VERSION = 1;
-  int32 version_ = CURRENT_VERSION;
-
-  StoryContentUnsupported() = default;
-  explicit StoryContentUnsupported(int32 version) : version_(version) {
-  }
-
-  StoryContentType get_type() const final {
-    return StoryContentType::Unsupported;
-  }
-};
-
-template <class StorerT>
-static void store(const StoryContent *content, StorerT &storer) {
-  CHECK(content != nullptr);
-
-  Td *td = storer.context()->td().get_actor_unsafe();
-  CHECK(td != nullptr);
-
-  auto content_type = content->get_type();
-  store(content_type, storer);
-
-  switch (content_type) {
-    case StoryContentType::Photo: {
-      const auto *story_content = static_cast<const StoryContentPhoto *>(content);
-      BEGIN_STORE_FLAGS();
-      END_STORE_FLAGS();
-      store(story_content->photo_, storer);
-      break;
-    }
-    case StoryContentType::Video: {
-      const auto *story_content = static_cast<const StoryContentVideo *>(content);
-      bool has_alt_file_id = story_content->alt_file_id_.is_valid();
-      BEGIN_STORE_FLAGS();
-      STORE_FLAG(has_alt_file_id);
-      END_STORE_FLAGS();
-      td->videos_manager_->store_video(story_content->file_id_, storer);
-      if (has_alt_file_id) {
-        td->videos_manager_->store_video(story_content->alt_file_id_, storer);
-      }
-      break;
-    }
-    case StoryContentType::Unsupported: {
-      const auto *story_content = static_cast<const StoryContentUnsupported *>(content);
-      store(story_content->version_, storer);
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-template <class ParserT>
-static void parse(unique_ptr<StoryContent> &content, ParserT &parser) {
-  Td *td = parser.context()->td().get_actor_unsafe();
-  CHECK(td != nullptr);
-
-  StoryContentType content_type;
-  parse(content_type, parser);
-
-  bool is_bad = false;
-  switch (content_type) {
-    case StoryContentType::Photo: {
-      auto story_content = make_unique<StoryContentPhoto>();
-      BEGIN_PARSE_FLAGS();
-      END_PARSE_FLAGS();
-      parse(story_content->photo_, parser);
-      is_bad |= story_content->photo_.is_bad();
-      content = std::move(story_content);
-      break;
-    }
-    case StoryContentType::Video: {
-      auto story_content = make_unique<StoryContentVideo>();
-      bool has_alt_file_id;
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_alt_file_id);
-      END_PARSE_FLAGS();
-      story_content->file_id_ = td->videos_manager_->parse_video(parser);
-      if (has_alt_file_id) {
-        story_content->alt_file_id_ = td->videos_manager_->parse_video(parser);
-        if (!story_content->alt_file_id_.is_valid()) {
-          LOG(ERROR) << "Failed to parse alternative video";
-        }
-      }
-      content = std::move(story_content);
-      break;
-    }
-    case StoryContentType::Unsupported: {
-      auto story_content = make_unique<StoryContentUnsupported>();
-      parse(story_content->version_, parser);
-      content = std::move(story_content);
-      break;
-    }
-    default:
-      is_bad = true;
-  }
-  if (is_bad) {
-    LOG(ERROR) << "Load a story with an invalid content of type " << content_type;
-    content = make_unique<StoryContentUnsupported>(0);
-  }
-}
-
-void store_story_content(const StoryContent *content, LogEventStorerCalcLength &storer) {
-  store(content, storer);
-}
-
-void store_story_content(const StoryContent *content, LogEventStorerUnsafe &storer) {
-  store(content, storer);
-}
-
-void parse_story_content(unique_ptr<StoryContent> &content, LogEventParser &parser) {
-  parse(content, parser);
-}
-
-void add_story_content_dependencies(Dependencies &dependencies, const StoryContent *story_content) {
-  switch (story_content->get_type()) {
-    case StoryContentType::Photo:
-      break;
-    case StoryContentType::Video:
-      break;
-    case StoryContentType::Unsupported:
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-unique_ptr<StoryContent> get_story_content(Td *td, tl_object_ptr<telegram_api::MessageMedia> &&media_ptr,
-                                           DialogId owner_dialog_id) {
-  CHECK(media_ptr != nullptr);
-  switch (media_ptr->get_id()) {
-    case telegram_api::messageMediaPhoto::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaPhoto>(media_ptr);
-      if (media->photo_ == nullptr || (media->flags_ & telegram_api::messageMediaPhoto::TTL_SECONDS_MASK) != 0 ||
-          media->spoiler_) {
-        LOG(ERROR) << "Receive a story with content " << to_string(media);
-        break;
-      }
-
-      auto photo = get_photo(td, std::move(media->photo_), owner_dialog_id, FileType::PhotoStory);
-      if (photo.is_empty()) {
-        LOG(ERROR) << "Receive a story with empty photo";
-        break;
-      }
-      return make_unique<StoryContentPhoto>(std::move(photo));
-    }
-    case telegram_api::messageMediaDocument::ID: {
-      auto media = telegram_api::move_object_as<telegram_api::messageMediaDocument>(media_ptr);
-      if (media->document_ == nullptr || (media->flags_ & telegram_api::messageMediaDocument::TTL_SECONDS_MASK) != 0 ||
-          media->spoiler_) {
-        LOG(ERROR) << "Receive a story with content " << to_string(media);
-        break;
-      }
-
-      auto document_ptr = std::move(media->document_);
-      int32 document_id = document_ptr->get_id();
-      if (document_id == telegram_api::documentEmpty::ID) {
-        LOG(ERROR) << "Receive a story with empty document";
-        break;
-      }
-      CHECK(document_id == telegram_api::document::ID);
-      auto parsed_document = td->documents_manager_->on_get_document(
-          telegram_api::move_object_as<telegram_api::document>(document_ptr), owner_dialog_id, false, nullptr,
-          Document::Type::Video, DocumentsManager::Subtype::Story);
-      if (parsed_document.empty() || parsed_document.type != Document::Type::Video) {
-        LOG(ERROR) << "Receive a story with " << parsed_document;
-        break;
-      }
-      CHECK(parsed_document.file_id.is_valid());
-
-      FileId alt_file_id;
-      if (media->alt_documents_.size() == 1u) {
-        auto alt_document_ptr = std::move(media->alt_documents_[0]);
-        int32 alt_document_id = alt_document_ptr->get_id();
-        if (alt_document_id == telegram_api::documentEmpty::ID) {
-          LOG(ERROR) << "Receive alternative " << to_string(alt_document_ptr);
-        } else {
-          CHECK(alt_document_id == telegram_api::document::ID);
-          auto parsed_alt_document = td->documents_manager_->on_get_document(
-              telegram_api::move_object_as<telegram_api::document>(alt_document_ptr), owner_dialog_id, false, nullptr,
-              Document::Type::Video, DocumentsManager::Subtype::Story);
-          if (parsed_alt_document.empty() || parsed_alt_document.type != Document::Type::Video) {
-            LOG(ERROR) << "Receive invalid alternative document " << parsed_alt_document;
-          } else {
-            alt_file_id = parsed_alt_document.file_id;
-          }
-        }
-      }
-
-      return make_unique<StoryContentVideo>(parsed_document.file_id, alt_file_id);
-    }
-    case telegram_api::messageMediaUnsupported::ID:
-      return make_unique<StoryContentUnsupported>();
-    default:
-      break;
-  }
-  return nullptr;
-}
-
-Result<unique_ptr<StoryContent>> get_input_story_content(
-    Td *td, td_api::object_ptr<td_api::InputStoryContent> &&input_story_content, DialogId owner_dialog_id) {
-  LOG(INFO) << "Get input story content from " << to_string(input_story_content);
-  if (input_story_content == nullptr) {
-    return Status::Error(400, "Input story content must be non-empty");
-  }
-
-  switch (input_story_content->get_id()) {
-    case td_api::inputStoryContentPhoto::ID: {
-      auto input_story = static_cast<const td_api::inputStoryContentPhoto *>(input_story_content.get());
-      TRY_RESULT(file_id, td->file_manager_->get_input_file_id(FileType::Photo, input_story->photo_, owner_dialog_id,
-                                                               false, false));
-      file_id =
-          td->file_manager_->copy_file_id(file_id, FileType::PhotoStory, owner_dialog_id, "get_input_story_content");
-      auto sticker_file_ids =
-          td->stickers_manager_->get_attached_sticker_file_ids(input_story->added_sticker_file_ids_);
-      TRY_RESULT(photo,
-                 create_photo(td->file_manager_.get(), file_id, PhotoSize(), 720, 1280, std::move(sticker_file_ids)));
-      return make_unique<StoryContentPhoto>(std::move(photo));
-    }
-    case td_api::inputStoryContentVideo::ID: {
-      auto input_story = static_cast<const td_api::inputStoryContentVideo *>(input_story_content.get());
-      TRY_RESULT(file_id, td->file_manager_->get_input_file_id(FileType::Video, input_story->video_, owner_dialog_id,
-                                                               false, false));
-      if (input_story->duration_ < 0 || input_story->duration_ > 60.0) {
-        return Status::Error(400, "Invalid video duration specified");
-      }
-      if (input_story->cover_frame_timestamp_ < 0.0) {
-        return Status::Error(400, "Wrong cover timestamp specified");
-      }
-      file_id =
-          td->file_manager_->copy_file_id(file_id, FileType::VideoStory, owner_dialog_id, "get_input_story_content");
-      auto sticker_file_ids =
-          td->stickers_manager_->get_attached_sticker_file_ids(input_story->added_sticker_file_ids_);
-      bool has_stickers = !sticker_file_ids.empty();
-      td->videos_manager_->create_video(file_id, string(), PhotoSize(), AnimationSize(), has_stickers,
-                                        std::move(sticker_file_ids), "story.mp4", "video/mp4",
-                                        static_cast<int32>(std::ceil(input_story->duration_)), input_story->duration_,
-                                        get_dimensions(720, 1280, nullptr), true, input_story->is_animation_, 0,
-                                        input_story->cover_frame_timestamp_, string(), false);
-
-      return make_unique<StoryContentVideo>(file_id, FileId());
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_story_content_input_media(
-    Td *td, const StoryContent *content, telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  switch (content->get_type()) {
-    case StoryContentType::Photo: {
-      const auto *story_content = static_cast<const StoryContentPhoto *>(content);
-      return photo_get_input_media(td->file_manager_.get(), story_content->photo_, std::move(input_file), 0, false);
-    }
-    case StoryContentType::Video: {
-      const auto *story_content = static_cast<const StoryContentVideo *>(content);
-      return td->videos_manager_->get_input_media(story_content->file_id_, std::move(input_file), nullptr, Photo(), 0,
-                                                  0, false);
-    }
-    case StoryContentType::Unsupported:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_story_content_document_input_media(Td *td,
-                                                                                          const StoryContent *content,
-                                                                                          double main_frame_timestamp) {
-  switch (content->get_type()) {
-    case StoryContentType::Video: {
-      const auto *story_content = static_cast<const StoryContentVideo *>(content);
-      return td->videos_manager_->get_story_document_input_media(story_content->file_id_, main_frame_timestamp);
-    }
-    case StoryContentType::Photo:
-    case StoryContentType::Unsupported:
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-void compare_story_contents(const StoryContent *old_content, const StoryContent *new_content, bool &is_content_changed,
-                            bool &need_update) {
-  StoryContentType content_type = new_content->get_type();
-  if (old_content->get_type() != content_type) {
-    need_update = true;
-    return;
-  }
-
-  switch (content_type) {
-    case StoryContentType::Photo: {
-      const auto *old_ = static_cast<const StoryContentPhoto *>(old_content);
-      const auto *new_ = static_cast<const StoryContentPhoto *>(new_content);
-      if (old_->photo_ != new_->photo_) {
-        need_update = true;
-      }
-      break;
-    }
-    case StoryContentType::Video: {
-      const auto *old_ = static_cast<const StoryContentVideo *>(old_content);
-      const auto *new_ = static_cast<const StoryContentVideo *>(new_content);
-      if (old_->file_id_ != new_->file_id_ || old_->alt_file_id_ != new_->alt_file_id_) {
-        need_update = true;
-      }
-      break;
-    }
-    case StoryContentType::Unsupported: {
-      const auto *old_ = static_cast<const StoryContentUnsupported *>(old_content);
-      const auto *new_ = static_cast<const StoryContentUnsupported *>(new_content);
-      if (old_->version_ != new_->version_) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-void merge_story_contents(Td *td, const StoryContent *old_content, StoryContent *new_content, DialogId dialog_id,
-                          bool &is_content_changed, bool &need_update) {
-  StoryContentType content_type = new_content->get_type();
-  CHECK(old_content->get_type() == content_type);
-
-  switch (content_type) {
-    case StoryContentType::Photo: {
-      const auto *old_ = static_cast<const StoryContentPhoto *>(old_content);
-      auto *new_ = static_cast<StoryContentPhoto *>(new_content);
-      merge_photos(td, &old_->photo_, &new_->photo_, dialog_id, false, is_content_changed, need_update);
-      break;
-    }
-    case StoryContentType::Video: {
-      const auto *old_ = static_cast<const StoryContentVideo *>(old_content);
-      const auto *new_ = static_cast<const StoryContentVideo *>(new_content);
-      if (old_->file_id_ != new_->file_id_ || old_->alt_file_id_ != new_->alt_file_id_) {
-        need_update = true;
-      }
-      break;
-    }
-    case StoryContentType::Unsupported: {
-      const auto *old_ = static_cast<const StoryContentUnsupported *>(old_content);
-      const auto *new_ = static_cast<const StoryContentUnsupported *>(new_content);
-      if (old_->version_ != new_->version_) {
-        is_content_changed = true;
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-unique_ptr<StoryContent> copy_story_content(const StoryContent *content) {
-  if (content == nullptr) {
-    return nullptr;
-  }
-  switch (content->get_type()) {
-    case StoryContentType::Photo: {
-      const auto *story_content = static_cast<const StoryContentPhoto *>(content);
-      return make_unique<StoryContentPhoto>(Photo(story_content->photo_));
-    }
-    case StoryContentType::Video: {
-      const auto *story_content = static_cast<const StoryContentVideo *>(content);
-      return make_unique<StoryContentVideo>(story_content->file_id_, story_content->alt_file_id_);
-    }
-    case StoryContentType::Unsupported: {
-      const auto *story_content = static_cast<const StoryContentUnsupported *>(content);
-      return make_unique<StoryContentUnsupported>(story_content->version_);
-    }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::StoryContent> get_story_content_object(Td *td, const StoryContent *content) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case StoryContentType::Photo: {
-      const auto *s = static_cast<const StoryContentPhoto *>(content);
-      auto photo = get_photo_object(td->file_manager_.get(), s->photo_);
-      if (photo == nullptr) {
-        return td_api::make_object<td_api::storyContentUnsupported>();
-      }
-      return td_api::make_object<td_api::storyContentPhoto>(std::move(photo));
-    }
-    case StoryContentType::Video: {
-      const auto *s = static_cast<const StoryContentVideo *>(content);
-      return td_api::make_object<td_api::storyContentVideo>(
-          td->videos_manager_->get_story_video_object(s->file_id_),
-          td->videos_manager_->get_story_video_object(s->alt_file_id_));
-    }
-    case StoryContentType::Unsupported:
-      return td_api::make_object<td_api::storyContentUnsupported>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-FileId get_story_content_any_file_id(const StoryContent *content) {
-  switch (content->get_type()) {
-    case StoryContentType::Photo:
-      return get_photo_any_file_id(static_cast<const StoryContentPhoto *>(content)->photo_);
-    case StoryContentType::Video:
-      return static_cast<const StoryContentVideo *>(content)->file_id_;
-    case StoryContentType::Unsupported:
-    default:
-      return {};
-  }
-}
-
-vector<FileId> get_story_content_file_ids(const Td *td, const StoryContent *content) {
-  switch (content->get_type()) {
-    case StoryContentType::Photo:
-      return photo_get_file_ids(static_cast<const StoryContentPhoto *>(content)->photo_);
-    case StoryContentType::Video: {
-      vector<FileId> result;
-      const auto *s = static_cast<const StoryContentVideo *>(content);
-      Document(Document::Type::Video, s->file_id_).append_file_ids(td, result);
-      Document(Document::Type::Video, s->alt_file_id_).append_file_ids(td, result);
-      return result;
-    }
-    case StoryContentType::Unsupported:
-    default:
-      return {};
-  }
-}
-
-int32 get_story_content_duration(const Td *td, const StoryContent *content) {
-  CHECK(content != nullptr);
-  switch (content->get_type()) {
-    case StoryContentType::Video: {
-      auto file_id = static_cast<const StoryContentVideo *>(content)->file_id_;
-      return td->videos_manager_->get_video_duration(file_id);
-    }
-    default:
-      return -1;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryContent.h b/third-party/td/td/td/telegram/StoryContent.h
deleted file mode 100644
index 8a0e687925..0000000000
--- a/third-party/td/td/td/telegram/StoryContent.h
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/StoryContentType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class StoryContent {
- public:
-  StoryContent() = default;
-  StoryContent(const StoryContent &) = default;
-  StoryContent &operator=(const StoryContent &) = default;
-  StoryContent(StoryContent &&) = default;
-  StoryContent &operator=(StoryContent &&) = default;
-
-  virtual StoryContentType get_type() const = 0;
-  virtual ~StoryContent() = default;
-};
-
-void store_story_content(const StoryContent *content, LogEventStorerCalcLength &storer);
-
-void store_story_content(const StoryContent *content, LogEventStorerUnsafe &storer);
-
-void parse_story_content(unique_ptr<StoryContent> &content, LogEventParser &parser);
-
-void add_story_content_dependencies(Dependencies &dependencies, const StoryContent *story_content);
-
-unique_ptr<StoryContent> get_story_content(Td *td, telegram_api::object_ptr<telegram_api::MessageMedia> &&media_ptr,
-                                           DialogId owner_dialog_id);
-
-Result<unique_ptr<StoryContent>> get_input_story_content(
-    Td *td, td_api::object_ptr<td_api::InputStoryContent> &&input_story_content, DialogId owner_dialog_id);
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_story_content_input_media(
-    Td *td, const StoryContent *content, telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-telegram_api::object_ptr<telegram_api::InputMedia> get_story_content_document_input_media(Td *td,
-                                                                                          const StoryContent *content,
-                                                                                          double main_frame_timestamp);
-
-void compare_story_contents(Td *td, const StoryContent *old_content, const StoryContent *new_content,
-                            bool &is_content_changed, bool &need_update);
-
-void merge_story_contents(Td *td, const StoryContent *old_content, StoryContent *new_content, DialogId dialog_id,
-                          bool &is_content_changed, bool &need_update);
-
-unique_ptr<StoryContent> copy_story_content(const StoryContent *content);
-
-td_api::object_ptr<td_api::StoryContent> get_story_content_object(Td *td, const StoryContent *content);
-
-FileId get_story_content_any_file_id(const StoryContent *content);
-
-vector<FileId> get_story_content_file_ids(const Td *td, const StoryContent *content);
-
-int32 get_story_content_duration(const Td *td, const StoryContent *content);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryContentType.cpp b/third-party/td/td/td/telegram/StoryContentType.cpp
deleted file mode 100644
index 346492d966..0000000000
--- a/third-party/td/td/td/telegram/StoryContentType.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StoryContentType.h"
-
-namespace td {
-
-StringBuilder &operator<<(StringBuilder &string_builder, StoryContentType content_type) {
-  switch (content_type) {
-    case StoryContentType::Photo:
-      return string_builder << "Photo";
-    case StoryContentType::Video:
-      return string_builder << "Video";
-    case StoryContentType::Unsupported:
-      return string_builder << "Unsupported";
-    default:
-      return string_builder << "Invalid type " << static_cast<int32>(content_type);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryContentType.h b/third-party/td/td/td/telegram/StoryContentType.h
deleted file mode 100644
index c407ef1742..0000000000
--- a/third-party/td/td/td/telegram/StoryContentType.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-// increase StoryContentUnsupported::CURRENT_VERSION each time a new Story content type is added
-enum class StoryContentType : int32 { Photo, Video, Unsupported };
-
-StringBuilder &operator<<(StringBuilder &string_builder, StoryContentType content_type);
-
-struct StoryContentTypeHash {
-  uint32 operator()(StoryContentType content_type) const {
-    return Hash<int32>()(static_cast<int32>(content_type));
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryDb.cpp b/third-party/td/td/td/telegram/StoryDb.cpp
deleted file mode 100644
index c15c29d209..0000000000
--- a/third-party/td/td/td/telegram/StoryDb.cpp
+++ /dev/null
@@ -1,569 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StoryDb.h"
-
-#include "td/telegram/StoryId.h"
-#include "td/telegram/Version.h"
-
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteStatement.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/SchedulerLocalStorage.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-
-#include <utility>
-
-namespace td {
-
-// NB: must happen inside a transaction
-Status init_story_db(SqliteDb &db, int32 version) {
-  LOG(INFO) << "Init story database " << tag("version", version);
-
-  // Check if database exists
-  TRY_RESULT(has_stories_table, db.has_table("stories"));
-  TRY_RESULT(has_active_stories_table, db.has_table("active_stories"));
-  TRY_RESULT(has_story_list_table, db.has_table("active_story_lists"));
-  if ((!has_stories_table || !has_active_stories_table || !has_story_list_table) || version > current_db_version()) {
-    TRY_STATUS(drop_story_db(db, version));
-    version = 0;
-  }
-
-  if (version == 0) {
-    LOG(INFO) << "Create new story database";
-    TRY_STATUS(
-        db.exec("CREATE TABLE IF NOT EXISTS stories (dialog_id INT8, story_id INT4, expires_at INT4, notification_id "
-                "INT4, data BLOB, PRIMARY KEY (dialog_id, story_id))"));
-
-    TRY_STATUS(db.exec("CREATE INDEX IF NOT EXISTS story_by_ttl ON stories (expires_at) WHERE expires_at IS NOT NULL"));
-
-    TRY_STATUS(
-        db.exec("CREATE INDEX IF NOT EXISTS story_by_notification_id ON stories (dialog_id, notification_id) WHERE "
-                "notification_id IS NOT NULL"));
-
-    TRY_STATUS(
-        db.exec("CREATE TABLE IF NOT EXISTS active_stories (dialog_id INT8 PRIMARY KEY, story_list_id INT4, "
-                "dialog_order INT8, data BLOB)"));
-
-    TRY_STATUS(
-        db.exec("CREATE INDEX IF NOT EXISTS active_stories_by_order ON active_stories (story_list_id, dialog_order, "
-                "dialog_id) WHERE story_list_id IS NOT NULL"));
-
-    TRY_STATUS(db.exec("CREATE TABLE IF NOT EXISTS active_story_lists (story_list_id INT4 PRIMARY KEY, data BLOB)"));
-
-    version = current_db_version();
-  }
-  return Status::OK();
-}
-
-// NB: must happen inside a transaction
-Status drop_story_db(SqliteDb &db, int32 version) {
-  if (version != 0) {
-    LOG(WARNING) << "Drop story database " << tag("version", version)
-                 << tag("current_db_version", current_db_version());
-  }
-  auto status = db.exec("DROP TABLE IF EXISTS stories");
-  TRY_STATUS(db.exec("DROP TABLE IF EXISTS active_stories"));
-  TRY_STATUS(db.exec("DROP TABLE IF EXISTS active_story_lists"));
-  return status;
-}
-
-class StoryDbImpl final : public StoryDbSyncInterface {
- public:
-  explicit StoryDbImpl(SqliteDb db) : db_(std::move(db)) {
-    init().ensure();
-  }
-
-  Status init() {
-    TRY_RESULT_ASSIGN(add_story_stmt_, db_.get_statement("INSERT OR REPLACE INTO stories VALUES(?1, ?2, ?3, ?4, ?5)"));
-
-    TRY_RESULT_ASSIGN(delete_story_stmt_,
-                      db_.get_statement("DELETE FROM stories WHERE dialog_id = ?1 AND story_id = ?2"));
-
-    TRY_RESULT_ASSIGN(get_story_stmt_,
-                      db_.get_statement("SELECT data FROM stories WHERE dialog_id = ?1 AND story_id = ?2"));
-
-    TRY_RESULT_ASSIGN(
-        get_expiring_stories_stmt_,
-        db_.get_statement("SELECT dialog_id, story_id, data FROM stories WHERE expires_at <= ?1 LIMIT ?2"));
-
-    TRY_RESULT_ASSIGN(get_stories_from_notification_id_stmt_,
-                      db_.get_statement("SELECT story_id, data FROM stories WHERE dialog_id = ?1 AND "
-                                        "notification_id < ?2 ORDER BY notification_id DESC LIMIT ?3"));
-
-    TRY_RESULT_ASSIGN(add_active_stories_stmt_,
-                      db_.get_statement("INSERT OR REPLACE INTO active_stories VALUES(?1, ?2, ?3, ?4)"));
-
-    TRY_RESULT_ASSIGN(delete_active_stories_stmt_,
-                      db_.get_statement("DELETE FROM active_stories WHERE dialog_id = ?1"));
-
-    TRY_RESULT_ASSIGN(
-        get_active_story_list_stmt_,
-        db_.get_statement("SELECT data, dialog_id, dialog_order FROM active_stories WHERE "
-                          "story_list_id = ?1 AND (dialog_order < ?2 OR (dialog_order = ?2 AND dialog_id < ?3)) ORDER "
-                          "BY dialog_order DESC, dialog_id DESC LIMIT ?4"));
-
-    TRY_RESULT_ASSIGN(get_active_stories_stmt_,
-                      db_.get_statement("SELECT data FROM active_stories WHERE dialog_id = ?1"));
-
-    TRY_RESULT_ASSIGN(add_active_story_list_state_stmt_,
-                      db_.get_statement("INSERT OR REPLACE INTO active_story_lists VALUES(?1, ?2)"));
-
-    TRY_RESULT_ASSIGN(get_active_story_list_state_stmt_,
-                      db_.get_statement("SELECT data FROM active_story_lists WHERE story_list_id = ?1"));
-
-    return Status::OK();
-  }
-
-  void add_story(StoryFullId story_full_id, int32 expires_at, NotificationId notification_id, BufferSlice data) final {
-    LOG(INFO) << "Add " << story_full_id << " to database";
-    CHECK(story_full_id.is_server());
-    auto dialog_id = story_full_id.get_dialog_id();
-    auto story_id = story_full_id.get_story_id();
-    SCOPE_EXIT {
-      add_story_stmt_.reset();
-    };
-
-    add_story_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    add_story_stmt_.bind_int32(2, story_id.get()).ensure();
-    if (expires_at != 0) {
-      add_story_stmt_.bind_int32(3, expires_at).ensure();
-    } else {
-      add_story_stmt_.bind_null(3).ensure();
-    }
-    if (notification_id.is_valid()) {
-      add_story_stmt_.bind_int32(4, notification_id.get()).ensure();
-    } else {
-      add_story_stmt_.bind_null(4).ensure();
-    }
-    add_story_stmt_.bind_blob(5, data.as_slice()).ensure();
-
-    add_story_stmt_.step().ensure();
-  }
-
-  void delete_story(StoryFullId story_full_id) final {
-    LOG(INFO) << "Delete " << story_full_id << " from database";
-    CHECK(story_full_id.is_valid());
-    auto dialog_id = story_full_id.get_dialog_id();
-    auto story_id = story_full_id.get_story_id();
-    SCOPE_EXIT {
-      delete_story_stmt_.reset();
-    };
-    delete_story_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    delete_story_stmt_.bind_int32(2, story_id.get()).ensure();
-    delete_story_stmt_.step().ensure();
-  }
-
-  Result<BufferSlice> get_story(StoryFullId story_full_id) final {
-    CHECK(story_full_id.is_server());
-    auto dialog_id = story_full_id.get_dialog_id();
-    auto story_id = story_full_id.get_story_id();
-    SCOPE_EXIT {
-      get_story_stmt_.reset();
-    };
-
-    get_story_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    get_story_stmt_.bind_int32(2, story_id.get()).ensure();
-    get_story_stmt_.step().ensure();
-    if (!get_story_stmt_.has_row()) {
-      return Status::Error("Not found");
-    }
-    return BufferSlice(get_story_stmt_.view_blob(0));
-  }
-
-  vector<StoryDbStory> get_expiring_stories(int32 expires_till, int32 limit) final {
-    auto &stmt = get_expiring_stories_stmt_;
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-
-    stmt.bind_int32(1, expires_till).ensure();
-    stmt.bind_int32(2, limit).ensure();
-    stmt.step().ensure();
-
-    vector<StoryDbStory> stories;
-    while (stmt.has_row()) {
-      DialogId dialog_id(stmt.view_int64(0));
-      StoryId story_id(stmt.view_int32(1));
-      BufferSlice data(stmt.view_blob(2));
-      stories.emplace_back(StoryFullId{dialog_id, story_id}, std::move(data));
-      stmt.step().ensure();
-    }
-
-    return stories;
-  }
-
-  vector<StoryDbStory> get_stories_from_notification_id(DialogId dialog_id, NotificationId from_notification_id,
-                                                        int32 limit) final {
-    auto &stmt = get_stories_from_notification_id_stmt_;
-    SCOPE_EXIT {
-      stmt.reset();
-    };
-    stmt.bind_int64(1, dialog_id.get()).ensure();
-    stmt.bind_int32(2, from_notification_id.get()).ensure();
-    stmt.bind_int32(3, limit).ensure();
-    stmt.step().ensure();
-
-    vector<StoryDbStory> stories;
-    while (stmt.has_row()) {
-      StoryId story_id(stmt.view_int32(0));
-      BufferSlice data(stmt.view_blob(1));
-      stories.emplace_back(StoryFullId{dialog_id, story_id}, std::move(data));
-      stmt.step().ensure();
-    }
-    return stories;
-  }
-
-  void add_active_stories(DialogId dialog_id, StoryListId story_list_id, int64 dialog_order, BufferSlice data) final {
-    SCOPE_EXIT {
-      add_active_stories_stmt_.reset();
-    };
-    add_active_stories_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    if (story_list_id.is_valid()) {
-      add_active_stories_stmt_.bind_int32(2, story_list_id == StoryListId::archive() ? 1 : 0).ensure();
-    } else {
-      add_active_stories_stmt_.bind_null(2).ensure();
-    }
-    add_active_stories_stmt_.bind_int64(3, dialog_order).ensure();
-    add_active_stories_stmt_.bind_blob(4, data.as_slice()).ensure();
-    add_active_stories_stmt_.step().ensure();
-  }
-
-  void delete_active_stories(DialogId dialog_id) final {
-    SCOPE_EXIT {
-      delete_active_stories_stmt_.reset();
-    };
-    delete_active_stories_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    delete_active_stories_stmt_.step().ensure();
-  }
-
-  Result<BufferSlice> get_active_stories(DialogId dialog_id) final {
-    SCOPE_EXIT {
-      get_active_stories_stmt_.reset();
-    };
-
-    get_active_stories_stmt_.bind_int64(1, dialog_id.get()).ensure();
-    get_active_stories_stmt_.step().ensure();
-    if (!get_active_stories_stmt_.has_row()) {
-      return Status::Error("Not found");
-    }
-    return BufferSlice(get_active_stories_stmt_.view_blob(0));
-  }
-
-  StoryDbGetActiveStoryListResult get_active_story_list(StoryListId story_list_id, int64 order, DialogId dialog_id,
-                                                        int32 limit) final {
-    SCOPE_EXIT {
-      get_active_story_list_stmt_.reset();
-    };
-
-    get_active_story_list_stmt_.bind_int32(1, story_list_id == StoryListId::archive() ? 1 : 0).ensure();
-    get_active_story_list_stmt_.bind_int64(2, order).ensure();
-    get_active_story_list_stmt_.bind_int64(3, dialog_id.get()).ensure();
-    get_active_story_list_stmt_.bind_int32(4, limit).ensure();
-
-    StoryDbGetActiveStoryListResult result;
-    result.next_dialog_id_ = dialog_id;
-    result.next_order_ = order;
-    get_active_story_list_stmt_.step().ensure();
-    while (get_active_story_list_stmt_.has_row()) {
-      BufferSlice data(get_active_story_list_stmt_.view_blob(0));
-      result.next_dialog_id_ = DialogId(get_active_story_list_stmt_.view_int64(1));
-      result.next_order_ = get_active_story_list_stmt_.view_int64(2);
-      LOG(INFO) << "Load active stories in " << result.next_dialog_id_ << " with order " << result.next_order_;
-      result.active_stories_.emplace_back(result.next_dialog_id_, std::move(data));
-      get_active_story_list_stmt_.step().ensure();
-    }
-
-    return result;
-  }
-
-  void add_active_story_list_state(StoryListId story_list_id, BufferSlice data) final {
-    SCOPE_EXIT {
-      add_active_story_list_state_stmt_.reset();
-    };
-    add_active_story_list_state_stmt_.bind_int32(1, story_list_id == StoryListId::archive() ? 1 : 0).ensure();
-    add_active_story_list_state_stmt_.bind_blob(2, data.as_slice()).ensure();
-    add_active_story_list_state_stmt_.step().ensure();
-  }
-
-  Result<BufferSlice> get_active_story_list_state(StoryListId story_list_id) final {
-    SCOPE_EXIT {
-      get_active_story_list_state_stmt_.reset();
-    };
-
-    get_active_story_list_state_stmt_.bind_int64(1, story_list_id == StoryListId::archive() ? 1 : 0).ensure();
-    get_active_story_list_state_stmt_.step().ensure();
-    if (!get_active_story_list_state_stmt_.has_row()) {
-      return Status::Error("Not found");
-    }
-    return BufferSlice(get_active_story_list_state_stmt_.view_blob(0));
-  }
-
-  Status begin_write_transaction() final {
-    return db_.begin_write_transaction();
-  }
-  Status commit_transaction() final {
-    return db_.commit_transaction();
-  }
-
- private:
-  SqliteDb db_;
-
-  SqliteStatement add_story_stmt_;
-  SqliteStatement delete_story_stmt_;
-  SqliteStatement get_story_stmt_;
-  SqliteStatement get_expiring_stories_stmt_;
-  SqliteStatement get_stories_from_notification_id_stmt_;
-
-  SqliteStatement add_active_stories_stmt_;
-  SqliteStatement delete_active_stories_stmt_;
-  SqliteStatement get_active_stories_stmt_;
-  SqliteStatement get_active_story_list_stmt_;
-
-  SqliteStatement add_active_story_list_state_stmt_;
-  SqliteStatement get_active_story_list_state_stmt_;
-};
-
-std::shared_ptr<StoryDbSyncSafeInterface> create_story_db_sync(
-    std::shared_ptr<SqliteConnectionSafe> sqlite_connection) {
-  class StoryDbSyncSafe final : public StoryDbSyncSafeInterface {
-   public:
-    explicit StoryDbSyncSafe(std::shared_ptr<SqliteConnectionSafe> sqlite_connection)
-        : lsls_db_([safe_connection = std::move(sqlite_connection)] {
-          return make_unique<StoryDbImpl>(safe_connection->get().clone());
-        }) {
-    }
-    StoryDbSyncInterface &get() final {
-      return *lsls_db_.get();
-    }
-
-   private:
-    LazySchedulerLocalStorage<unique_ptr<StoryDbSyncInterface>> lsls_db_;
-  };
-  return std::make_shared<StoryDbSyncSafe>(std::move(sqlite_connection));
-}
-
-class StoryDbAsync final : public StoryDbAsyncInterface {
- public:
-  StoryDbAsync(std::shared_ptr<StoryDbSyncSafeInterface> sync_db, int32 scheduler_id) {
-    impl_ = create_actor_on_scheduler<Impl>("StoryDbActor", scheduler_id, std::move(sync_db));
-  }
-
-  void add_story(StoryFullId story_full_id, int32 expires_at, NotificationId notification_id, BufferSlice data,
-                 Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::add_story, story_full_id, expires_at, notification_id, std::move(data),
-                       std::move(promise));
-  }
-
-  void delete_story(StoryFullId story_full_id, Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::delete_story, story_full_id, std::move(promise));
-  }
-
-  void get_story(StoryFullId story_full_id, Promise<BufferSlice> promise) final {
-    send_closure_later(impl_, &Impl::get_story, story_full_id, std::move(promise));
-  }
-
-  void get_expiring_stories(int32 expires_till, int32 limit, Promise<vector<StoryDbStory>> promise) final {
-    send_closure_later(impl_, &Impl::get_expiring_stories, expires_till, limit, std::move(promise));
-  }
-
-  void get_stories_from_notification_id(DialogId dialog_id, NotificationId from_notification_id, int32 limit,
-                                        Promise<vector<StoryDbStory>> promise) final {
-    send_closure_later(impl_, &Impl::get_stories_from_notification_id, dialog_id, from_notification_id, limit,
-                       std::move(promise));
-  }
-
-  void add_active_stories(DialogId dialog_id, StoryListId story_list_id, int64 dialog_order, BufferSlice data,
-                          Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::add_active_stories, dialog_id, story_list_id, dialog_order, std::move(data),
-                       std::move(promise));
-  }
-
-  void delete_active_stories(DialogId dialog_id, Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::delete_active_stories, dialog_id, std::move(promise));
-  }
-
-  void get_active_stories(DialogId dialog_id, Promise<BufferSlice> promise) final {
-    send_closure_later(impl_, &Impl::get_active_stories, dialog_id, std::move(promise));
-  }
-
-  void get_active_story_list(StoryListId story_list_id, int64 order, DialogId dialog_id, int32 limit,
-                             Promise<StoryDbGetActiveStoryListResult> promise) final {
-    send_closure_later(impl_, &Impl::get_active_story_list, story_list_id, order, dialog_id, limit, std::move(promise));
-  }
-
-  void add_active_story_list_state(StoryListId story_list_id, BufferSlice data, Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::add_active_story_list_state, story_list_id, std::move(data), std::move(promise));
-  }
-
-  void get_active_story_list_state(StoryListId story_list_id, Promise<BufferSlice> promise) final {
-    send_closure_later(impl_, &Impl::get_active_story_list_state, story_list_id, std::move(promise));
-  }
-
-  void close(Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::close, std::move(promise));
-  }
-
-  void force_flush() final {
-    send_closure_later(impl_, &Impl::force_flush);
-  }
-
- private:
-  class Impl final : public Actor {
-   public:
-    explicit Impl(std::shared_ptr<StoryDbSyncSafeInterface> sync_db_safe) : sync_db_safe_(std::move(sync_db_safe)) {
-    }
-    void add_story(StoryFullId story_full_id, int32 expires_at, NotificationId notification_id, BufferSlice data,
-                   Promise<Unit> promise) {
-      add_write_query([this, story_full_id, expires_at, notification_id, data = std::move(data),
-                       promise = std::move(promise)](Unit) mutable {
-        sync_db_->add_story(story_full_id, expires_at, notification_id, std::move(data));
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void delete_story(StoryFullId story_full_id, Promise<Unit> promise) {
-      add_write_query([this, story_full_id, promise = std::move(promise)](Unit) mutable {
-        sync_db_->delete_story(story_full_id);
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void on_write_result(Promise<Unit> &&promise) {
-      // We are inside a transaction and don't know how to handle errors
-      finished_writes_.push_back(std::move(promise));
-    }
-
-    void get_story(StoryFullId story_full_id, Promise<BufferSlice> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_story(story_full_id));
-    }
-
-    void get_expiring_stories(int32 expires_till, int32 limit, Promise<vector<StoryDbStory>> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_expiring_stories(expires_till, limit));
-    }
-
-    void get_stories_from_notification_id(DialogId dialog_id, NotificationId from_notification_id, int32 limit,
-                                          Promise<vector<StoryDbStory>> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_stories_from_notification_id(dialog_id, from_notification_id, limit));
-    }
-
-    void add_active_stories(DialogId dialog_id, StoryListId story_list_id, int64 dialog_order, BufferSlice data,
-                            Promise<Unit> promise) {
-      add_write_query([this, dialog_id, story_list_id, dialog_order, data = std::move(data),
-                       promise = std::move(promise)](Unit) mutable {
-        sync_db_->add_active_stories(dialog_id, story_list_id, dialog_order, std::move(data));
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void delete_active_stories(DialogId dialog_id, Promise<Unit> promise) {
-      add_write_query([this, dialog_id, promise = std::move(promise)](Unit) mutable {
-        sync_db_->delete_active_stories(dialog_id);
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void get_active_stories(DialogId dialog_id, Promise<BufferSlice> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_active_stories(dialog_id));
-    }
-
-    void get_active_story_list(StoryListId story_list_id, int64 order, DialogId dialog_id, int32 limit,
-                               Promise<StoryDbGetActiveStoryListResult> promise) {
-      add_read_query();
-      promise.set_value(sync_db_->get_active_story_list(story_list_id, order, dialog_id, limit));
-    }
-
-    void add_active_story_list_state(StoryListId story_list_id, BufferSlice data, Promise<Unit> promise) {
-      add_write_query([this, story_list_id, data = std::move(data), promise = std::move(promise)](Unit) mutable {
-        sync_db_->add_active_story_list_state(story_list_id, std::move(data));
-        on_write_result(std::move(promise));
-      });
-    }
-
-    void get_active_story_list_state(StoryListId story_list_id, Promise<BufferSlice> promise) {
-      add_read_query();
-      promise.set_result(sync_db_->get_active_story_list_state(story_list_id));
-    }
-
-    void close(Promise<Unit> promise) {
-      do_flush();
-      sync_db_safe_.reset();
-      sync_db_ = nullptr;
-      promise.set_value(Unit());
-      stop();
-    }
-
-    void force_flush() {
-      do_flush();
-      LOG(INFO) << "StoryDb flushed";
-    }
-
-   private:
-    std::shared_ptr<StoryDbSyncSafeInterface> sync_db_safe_;
-    StoryDbSyncInterface *sync_db_ = nullptr;
-
-    static constexpr size_t MAX_PENDING_QUERIES_COUNT{50};
-    static constexpr double MAX_PENDING_QUERIES_DELAY{0.01};
-
-    //NB: order is important, destructor of pending_writes_ will change finished_writes_
-    vector<Promise<Unit>> finished_writes_;
-    vector<Promise<Unit>> pending_writes_;  // TODO use Action
-    double wakeup_at_ = 0;
-
-    template <class F>
-    void add_write_query(F &&f) {
-      pending_writes_.push_back(PromiseCreator::lambda(std::forward<F>(f)));
-      if (pending_writes_.size() > MAX_PENDING_QUERIES_COUNT) {
-        do_flush();
-        wakeup_at_ = 0;
-      } else if (wakeup_at_ == 0) {
-        wakeup_at_ = Time::now_cached() + MAX_PENDING_QUERIES_DELAY;
-      }
-      if (wakeup_at_ != 0) {
-        set_timeout_at(wakeup_at_);
-      }
-    }
-    void add_read_query() {
-      do_flush();
-    }
-    void do_flush() {
-      if (pending_writes_.empty()) {
-        return;
-      }
-      sync_db_->begin_write_transaction().ensure();
-      set_promises(pending_writes_);
-      sync_db_->commit_transaction().ensure();
-      set_promises(finished_writes_);
-      cancel_timeout();
-    }
-    void timeout_expired() final {
-      do_flush();
-    }
-
-    void start_up() final {
-      sync_db_ = &sync_db_safe_->get();
-    }
-  };
-  ActorOwn<Impl> impl_;
-};
-
-std::shared_ptr<StoryDbAsyncInterface> create_story_db_async(std::shared_ptr<StoryDbSyncSafeInterface> sync_db,
-                                                             int32 scheduler_id) {
-  return std::make_shared<StoryDbAsync>(std::move(sync_db), scheduler_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryDb.h b/third-party/td/td/td/telegram/StoryDb.h
deleted file mode 100644
index 92e1df28e8..0000000000
--- a/third-party/td/td/td/telegram/StoryDb.h
+++ /dev/null
@@ -1,133 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/StoryListId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class SqliteConnectionSafe;
-class SqliteDb;
-
-struct StoryDbStory {
-  StoryFullId story_full_id_;
-  BufferSlice data_;
-
-  StoryDbStory(StoryFullId story_full_id, BufferSlice &&data) : story_full_id_(story_full_id), data_(std::move(data)) {
-  }
-};
-
-struct StoryDbGetActiveStoryListResult {
-  vector<std::pair<DialogId, BufferSlice>> active_stories_;
-  int64 next_order_ = 0;
-  DialogId next_dialog_id_;
-};
-
-class StoryDbSyncInterface {
- public:
-  StoryDbSyncInterface() = default;
-  StoryDbSyncInterface(const StoryDbSyncInterface &) = delete;
-  StoryDbSyncInterface &operator=(const StoryDbSyncInterface &) = delete;
-  virtual ~StoryDbSyncInterface() = default;
-
-  virtual void add_story(StoryFullId story_full_id, int32 expires_at, NotificationId notification_id,
-                         BufferSlice data) = 0;
-
-  virtual void delete_story(StoryFullId story_full_id) = 0;
-
-  virtual Result<BufferSlice> get_story(StoryFullId story_full_id) = 0;
-
-  virtual vector<StoryDbStory> get_expiring_stories(int32 expires_till, int32 limit) = 0;
-
-  virtual vector<StoryDbStory> get_stories_from_notification_id(DialogId dialog_id, NotificationId from_notification_id,
-                                                                int32 limit) = 0;
-
-  virtual void add_active_stories(DialogId dialog_id, StoryListId story_list_id, int64 dialog_order,
-                                  BufferSlice data) = 0;
-
-  virtual void delete_active_stories(DialogId dialog_id) = 0;
-
-  virtual Result<BufferSlice> get_active_stories(DialogId dialog_id) = 0;
-
-  virtual StoryDbGetActiveStoryListResult get_active_story_list(StoryListId story_list_id, int64 order,
-                                                                DialogId dialog_id, int32 limit) = 0;
-
-  virtual void add_active_story_list_state(StoryListId story_list_id, BufferSlice data) = 0;
-
-  virtual Result<BufferSlice> get_active_story_list_state(StoryListId story_list_id) = 0;
-
-  virtual Status begin_write_transaction() = 0;
-  virtual Status commit_transaction() = 0;
-};
-
-class StoryDbSyncSafeInterface {
- public:
-  StoryDbSyncSafeInterface() = default;
-  StoryDbSyncSafeInterface(const StoryDbSyncSafeInterface &) = delete;
-  StoryDbSyncSafeInterface &operator=(const StoryDbSyncSafeInterface &) = delete;
-  virtual ~StoryDbSyncSafeInterface() = default;
-
-  virtual StoryDbSyncInterface &get() = 0;
-};
-
-class StoryDbAsyncInterface {
- public:
-  StoryDbAsyncInterface() = default;
-  StoryDbAsyncInterface(const StoryDbAsyncInterface &) = delete;
-  StoryDbAsyncInterface &operator=(const StoryDbAsyncInterface &) = delete;
-  virtual ~StoryDbAsyncInterface() = default;
-
-  virtual void add_story(StoryFullId story_full_id, int32 expires_at, NotificationId notification_id, BufferSlice data,
-                         Promise<Unit> promise) = 0;
-
-  virtual void delete_story(StoryFullId story_full_id, Promise<Unit> promise) = 0;
-
-  virtual void get_story(StoryFullId story_full_id, Promise<BufferSlice> promise) = 0;
-
-  virtual void get_expiring_stories(int32 expires_till, int32 limit, Promise<vector<StoryDbStory>> promise) = 0;
-
-  virtual void get_stories_from_notification_id(DialogId dialog_id, NotificationId from_notification_id, int32 limit,
-                                                Promise<vector<StoryDbStory>> promise) = 0;
-
-  virtual void add_active_stories(DialogId dialog_id, StoryListId story_list_id, int64 dialog_order, BufferSlice data,
-                                  Promise<Unit> promise) = 0;
-
-  virtual void delete_active_stories(DialogId dialog_id, Promise<Unit> promise) = 0;
-
-  virtual void get_active_stories(DialogId dialog_id, Promise<BufferSlice> promise) = 0;
-
-  virtual void get_active_story_list(StoryListId story_list_id, int64 order, DialogId dialog_id, int32 limit,
-                                     Promise<StoryDbGetActiveStoryListResult> promise) = 0;
-
-  virtual void add_active_story_list_state(StoryListId story_list_id, BufferSlice data, Promise<Unit> promise) = 0;
-
-  virtual void get_active_story_list_state(StoryListId story_list_id, Promise<BufferSlice> promise) = 0;
-
-  virtual void close(Promise<Unit> promise) = 0;
-  virtual void force_flush() = 0;
-};
-
-Status init_story_db(SqliteDb &db, int version) TD_WARN_UNUSED_RESULT;
-Status drop_story_db(SqliteDb &db, int version) TD_WARN_UNUSED_RESULT;
-
-std::shared_ptr<StoryDbSyncSafeInterface> create_story_db_sync(std::shared_ptr<SqliteConnectionSafe> sqlite_connection);
-
-std::shared_ptr<StoryDbAsyncInterface> create_story_db_async(std::shared_ptr<StoryDbSyncSafeInterface> sync_db,
-                                                             int32 scheduler_id = -1);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryForwardInfo.cpp b/third-party/td/td/td/telegram/StoryForwardInfo.cpp
deleted file mode 100644
index 1d32a12121..0000000000
--- a/third-party/td/td/td/telegram/StoryForwardInfo.cpp
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StoryForwardInfo.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-StoryForwardInfo::StoryForwardInfo(Td *td, telegram_api::object_ptr<telegram_api::storyFwdHeader> &&fwd_header) {
-  CHECK(fwd_header != nullptr);
-  is_modified_ = fwd_header->modified_;
-  if (fwd_header->from_ != nullptr) {
-    dialog_id_ = DialogId(fwd_header->from_);
-    story_id_ = StoryId(fwd_header->story_id_);
-    if (!dialog_id_.is_valid() || !story_id_.is_server()) {
-      LOG(ERROR) << "Receive " << to_string(fwd_header);
-      dialog_id_ = {};
-      story_id_ = {};
-    } else {
-      td->dialog_manager_->force_create_dialog(dialog_id_, "StoryForwardInfo", true);
-    }
-  } else if ((fwd_header->flags_ & telegram_api::storyFwdHeader::FROM_NAME_MASK) != 0) {
-    if (fwd_header->story_id_ != 0) {
-      LOG(ERROR) << "Receive " << to_string(fwd_header);
-    }
-    sender_name_ = std::move(fwd_header->from_name_);
-  } else {
-    LOG(ERROR) << "Receive " << to_string(fwd_header);
-  }
-}
-
-void StoryForwardInfo::hide_sender_if_needed(Td *td) {
-  // currently, there is no need to hide sender client-side
-}
-
-void StoryForwardInfo::add_dependencies(Dependencies &dependencies) const {
-  // don't try to load original story
-  dependencies.add_dialog_and_dependencies(dialog_id_);
-}
-
-td_api::object_ptr<td_api::storyRepostInfo> StoryForwardInfo::get_story_repost_info_object(Td *td) const {
-  auto origin = [&]() -> td_api::object_ptr<td_api::StoryOrigin> {
-    if (dialog_id_.is_valid() && story_id_.is_valid()) {
-      return td_api::make_object<td_api::storyOriginPublicStory>(
-          td->dialog_manager_->get_chat_id_object(dialog_id_, "storyOriginPublicStory"), story_id_.get());
-    }
-    return td_api::make_object<td_api::storyOriginHiddenUser>(sender_name_);
-  }();
-  return td_api::make_object<td_api::storyRepostInfo>(std::move(origin), is_modified_);
-}
-
-bool operator==(const StoryForwardInfo &lhs, const StoryForwardInfo &rhs) {
-  return lhs.dialog_id_ == rhs.dialog_id_ && lhs.story_id_ == rhs.story_id_ && lhs.sender_name_ == rhs.sender_name_ &&
-         lhs.is_modified_ == rhs.is_modified_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryForwardInfo.h b/third-party/td/td/td/telegram/StoryForwardInfo.h
deleted file mode 100644
index e7fc2f904c..0000000000
--- a/third-party/td/td/td/telegram/StoryForwardInfo.h
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-#include <utility>
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class StoryForwardInfo {
-  DialogId dialog_id_;
-  StoryId story_id_;
-  string sender_name_;
-  bool is_modified_ = false;
-
-  friend bool operator==(const StoryForwardInfo &lhs, const StoryForwardInfo &rhs);
-
- public:
-  StoryForwardInfo() = default;
-
-  StoryForwardInfo(Td *td, telegram_api::object_ptr<telegram_api::storyFwdHeader> &&fwd_header);
-
-  StoryForwardInfo(StoryFullId story_full_id, bool is_modified)
-      : dialog_id_(story_full_id.get_dialog_id()), story_id_(story_full_id.get_story_id()), is_modified_(is_modified) {
-  }
-
-  void hide_sender_if_needed(Td *td);
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  td_api::object_ptr<td_api::storyRepostInfo> get_story_repost_info_object(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StoryForwardInfo &lhs, const StoryForwardInfo &rhs);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryForwardInfo.hpp b/third-party/td/td/td/telegram/StoryForwardInfo.hpp
deleted file mode 100644
index 551e65a01e..0000000000
--- a/third-party/td/td/td/telegram/StoryForwardInfo.hpp
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StoryForwardInfo.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StoryForwardInfo::store(StorerT &storer) const {
-  using td::store;
-  bool has_dialog_id = dialog_id_.is_valid();
-  bool has_story_id = story_id_.is_valid();
-  bool has_sender_name = !sender_name_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_dialog_id);
-  STORE_FLAG(has_story_id);
-  STORE_FLAG(has_sender_name);
-  STORE_FLAG(is_modified_);
-  END_STORE_FLAGS();
-  if (has_dialog_id) {
-    store(dialog_id_, storer);
-  }
-  if (has_story_id) {
-    store(story_id_, storer);
-  }
-  if (has_sender_name) {
-    store(sender_name_, storer);
-  }
-}
-
-template <class ParserT>
-void StoryForwardInfo::parse(ParserT &parser) {
-  using td::parse;
-  bool has_dialog_id;
-  bool has_story_id;
-  bool has_sender_name;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_dialog_id);
-  PARSE_FLAG(has_story_id);
-  PARSE_FLAG(has_sender_name);
-  PARSE_FLAG(is_modified_);
-  END_PARSE_FLAGS();
-  if (has_dialog_id) {
-    parse(dialog_id_, parser);
-  }
-  if (has_story_id) {
-    parse(story_id_, parser);
-  }
-  if (has_sender_name) {
-    parse(sender_name_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryFullId.h b/third-party/td/td/td/telegram/StoryFullId.h
deleted file mode 100644
index 232ac5e51e..0000000000
--- a/third-party/td/td/td/telegram/StoryFullId.h
+++ /dev/null
@@ -1,77 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/StoryId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct StoryFullId {
- private:
-  DialogId dialog_id;
-  StoryId story_id;
-
- public:
-  StoryFullId() : dialog_id(), story_id() {
-  }
-
-  StoryFullId(DialogId dialog_id, StoryId story_id) : dialog_id(dialog_id), story_id(story_id) {
-  }
-
-  bool operator==(const StoryFullId &other) const {
-    return dialog_id == other.dialog_id && story_id == other.story_id;
-  }
-
-  bool operator!=(const StoryFullId &other) const {
-    return !(*this == other);
-  }
-
-  DialogId get_dialog_id() const {
-    return dialog_id;
-  }
-
-  StoryId get_story_id() const {
-    return story_id;
-  }
-
-  bool is_valid() const {
-    return dialog_id.is_valid() && story_id.is_valid();
-  }
-
-  bool is_server() const {
-    return dialog_id.is_valid() && story_id.is_server();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    dialog_id.store(storer);
-    story_id.store(storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    dialog_id.parse(parser);
-    story_id.parse(parser);
-  }
-};
-
-struct StoryFullIdHash {
-  uint32 operator()(StoryFullId story_full_id) const {
-    return combine_hashes(DialogIdHash()(story_full_id.get_dialog_id()), StoryIdHash()(story_full_id.get_story_id()));
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, StoryFullId story_full_id) {
-  return string_builder << story_full_id.get_story_id() << " in " << story_full_id.get_dialog_id();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryId.h b/third-party/td/td/td/telegram/StoryId.h
deleted file mode 100644
index 4ece78dd4a..0000000000
--- a/third-party/td/td/td/telegram/StoryId.h
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <type_traits>
-
-namespace td {
-
-class StoryId {
-  int32 id = 0;
-
- public:
-  static constexpr int32 MAX_SERVER_STORY_ID = 1999999999;
-
-  StoryId() = default;
-
-  explicit constexpr StoryId(int32 story_id) : id(story_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
-  StoryId(T story_id) = delete;
-
-  static vector<int32> get_input_story_ids(const vector<StoryId> &story_ids) {
-    vector<int32> input_story_ids;
-    input_story_ids.reserve(story_ids.size());
-    for (auto &story_id : story_ids) {
-      input_story_ids.emplace_back(story_id.get());
-    }
-    return input_story_ids;
-  }
-
-  static vector<StoryId> get_story_ids(const vector<int32> &input_story_ids) {
-    vector<StoryId> story_ids;
-    story_ids.reserve(input_story_ids.size());
-    for (auto &input_story_id : input_story_ids) {
-      story_ids.emplace_back(input_story_id);
-    }
-    return story_ids;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator==(const StoryId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const StoryId &other) const {
-    return id != other.id;
-  }
-
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  bool is_server() const {
-    return id > 0 && id <= MAX_SERVER_STORY_ID;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(id, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(id, parser);
-  }
-};
-
-struct StoryIdHash {
-  uint32 operator()(StoryId story_id) const {
-    return Hash<int32>()(story_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, StoryId story_id) {
-  return string_builder << "story " << story_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryInteractionInfo.cpp b/third-party/td/td/td/telegram/StoryInteractionInfo.cpp
deleted file mode 100644
index 8ff3b712b6..0000000000
--- a/third-party/td/td/td/telegram/StoryInteractionInfo.cpp
+++ /dev/null
@@ -1,154 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StoryInteractionInfo.h"
-
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-
-#include <algorithm>
-
-namespace td {
-
-StoryInteractionInfo::StoryInteractionInfo(Td *td, telegram_api::object_ptr<telegram_api::storyViews> &&story_views) {
-  if (story_views == nullptr) {
-    return;
-  }
-  for (auto &viewer_id : story_views->recent_viewers_) {
-    UserId user_id(viewer_id);
-    if (user_id.is_valid() && td->user_manager_->have_min_user(user_id)) {
-      if (recent_viewer_user_ids_.size() == MAX_RECENT_VIEWERS) {
-        LOG(ERROR) << "Receive too many recent story viewers: " << story_views->recent_viewers_;
-        break;
-      }
-      recent_viewer_user_ids_.push_back(user_id);
-    } else {
-      LOG(ERROR) << "Receive " << user_id << " as recent viewer";
-    }
-  }
-  view_count_ = story_views->views_count_;
-  if (view_count_ < 0) {
-    LOG(ERROR) << "Receive " << view_count_ << " story views";
-    view_count_ = 0;
-  }
-  forward_count_ = story_views->forwards_count_;
-  if (forward_count_ < 0) {
-    LOG(ERROR) << "Receive " << forward_count_ << " story forwards";
-    forward_count_ = 0;
-  }
-  reaction_count_ = story_views->reactions_count_;
-  if (reaction_count_ < 0) {
-    LOG(ERROR) << "Receive " << reaction_count_ << " story reactions";
-    reaction_count_ = 0;
-  }
-  has_viewers_ = story_views->has_viewers_;
-
-  FlatHashSet<ReactionType, ReactionTypeHash> added_reaction_types;
-  for (auto &reaction : story_views->reactions_) {
-    ReactionType reaction_type(reaction->reaction_);
-    if (reaction_type.is_empty() || reaction_type.is_paid_reaction()) {
-      LOG(ERROR) << "Receive " << to_string(reaction);
-      continue;
-    }
-    if (!added_reaction_types.insert(reaction_type).second) {
-      LOG(ERROR) << "Receive again " << to_string(reaction);
-      continue;
-    }
-    if (reaction->count_ == 0) {
-      LOG(ERROR) << "Receive " << to_string(reaction);
-      continue;
-    }
-    reaction_counts_.emplace_back(std::move(reaction_type), reaction->count_);
-  }
-  std::sort(reaction_counts_.begin(), reaction_counts_.end());
-}
-
-void StoryInteractionInfo::add_dependencies(Dependencies &dependencies) const {
-  for (auto user_id : recent_viewer_user_ids_) {
-    dependencies.add(user_id);
-  }
-}
-
-void StoryInteractionInfo::set_chosen_reaction_type(const ReactionType &new_reaction_type,
-                                                    const ReactionType &old_reaction_type) {
-  if (!old_reaction_type.is_empty()) {
-    CHECK(!old_reaction_type.is_paid_reaction());
-    for (auto it = reaction_counts_.begin(); it != reaction_counts_.end(); ++it) {
-      if (it->first == old_reaction_type) {
-        it->second--;
-        if (it->second == 0) {
-          reaction_counts_.erase(it);
-        }
-        break;
-      }
-    }
-  }
-  if (!new_reaction_type.is_empty()) {
-    CHECK(!new_reaction_type.is_paid_reaction());
-    bool is_found = false;
-    for (auto it = reaction_counts_.begin(); it != reaction_counts_.end(); ++it) {
-      if (it->first == old_reaction_type) {
-        it->second++;
-        is_found = true;
-      }
-    }
-    if (!is_found) {
-      reaction_counts_.emplace_back(new_reaction_type, 1);
-    }
-  }
-  std::sort(reaction_counts_.begin(), reaction_counts_.end());
-}
-
-bool StoryInteractionInfo::set_recent_viewer_user_ids(vector<UserId> &&user_ids) {
-  if (recent_viewer_user_ids_.empty() && view_count_ > 0) {
-    // don't update recent viewers for stories with expired viewers
-    return false;
-  }
-  if (user_ids.size() > MAX_RECENT_VIEWERS) {
-    user_ids.resize(MAX_RECENT_VIEWERS);
-  }
-  if (recent_viewer_user_ids_.size() < user_ids.size() && user_ids.size() <= static_cast<size_t>(view_count_)) {
-    return false;
-  }
-  if (recent_viewer_user_ids_ != user_ids) {
-    recent_viewer_user_ids_ = std::move(user_ids);
-    return true;
-  }
-  return false;
-}
-
-bool StoryInteractionInfo::definitely_has_no_user(UserId user_id) const {
-  return !is_empty() && view_count_ == static_cast<int32>(recent_viewer_user_ids_.size()) &&
-         !contains(recent_viewer_user_ids_, user_id);
-}
-
-td_api::object_ptr<td_api::storyInteractionInfo> StoryInteractionInfo::get_story_interaction_info_object(Td *td) const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::storyInteractionInfo>(
-      view_count_, forward_count_, reaction_count_,
-      td->user_manager_->get_user_ids_object(recent_viewer_user_ids_, "get_story_interaction_info_object"));
-}
-
-bool operator==(const StoryInteractionInfo &lhs, const StoryInteractionInfo &rhs) {
-  return lhs.recent_viewer_user_ids_ == rhs.recent_viewer_user_ids_ && lhs.reaction_counts_ == rhs.reaction_counts_ &&
-         lhs.view_count_ == rhs.view_count_ && lhs.forward_count_ == rhs.forward_count_ &&
-         lhs.reaction_count_ == rhs.reaction_count_ && lhs.has_viewers_ == rhs.has_viewers_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StoryInteractionInfo &info) {
-  return string_builder << info.view_count_ << " views and " << info.forward_count_ << " forwards with "
-                        << info.reaction_count_ << " reactions by " << info.recent_viewer_user_ids_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryInteractionInfo.h b/third-party/td/td/td/telegram/StoryInteractionInfo.h
deleted file mode 100644
index af5a68ed0d..0000000000
--- a/third-party/td/td/td/telegram/StoryInteractionInfo.h
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class StoryInteractionInfo {
-  vector<UserId> recent_viewer_user_ids_;
-  vector<std::pair<ReactionType, int32>> reaction_counts_;
-  int32 view_count_ = -1;
-  int32 forward_count_ = 0;
-  int32 reaction_count_ = 0;
-  bool has_viewers_ = false;
-
-  static constexpr size_t MAX_RECENT_VIEWERS = 3;
-
-  friend bool operator==(const StoryInteractionInfo &lhs, const StoryInteractionInfo &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StoryInteractionInfo &info);
-
- public:
-  StoryInteractionInfo() = default;
-
-  StoryInteractionInfo(Td *td, telegram_api::object_ptr<telegram_api::storyViews> &&story_views);
-
-  bool is_empty() const {
-    return view_count_ < 0;
-  }
-
-  bool has_hidden_viewers() const {
-    return view_count_ < 0 || !has_viewers_;
-  }
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  bool set_counts(int32 view_count, int32 reaction_count) {
-    if (view_count != view_count_ || reaction_count != reaction_count_) {
-      view_count = view_count_;
-      reaction_count = reaction_count_;
-      return true;
-    }
-    return false;
-  }
-
-  void set_chosen_reaction_type(const ReactionType &new_reaction_type, const ReactionType &old_reaction_type);
-
-  int32 get_view_count() const {
-    return view_count_;
-  }
-
-  int32 get_reaction_count() const {
-    return reaction_count_;
-  }
-
-  const vector<std::pair<ReactionType, int32>> &get_reaction_counts() const {
-    return reaction_counts_;
-  }
-
-  bool definitely_has_no_user(UserId user_id) const;
-
-  bool set_recent_viewer_user_ids(vector<UserId> &&user_ids);
-
-  td_api::object_ptr<td_api::storyInteractionInfo> get_story_interaction_info_object(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StoryInteractionInfo &lhs, const StoryInteractionInfo &rhs);
-
-inline bool operator!=(const StoryInteractionInfo &lhs, const StoryInteractionInfo &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StoryInteractionInfo &info);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryInteractionInfo.hpp b/third-party/td/td/td/telegram/StoryInteractionInfo.hpp
deleted file mode 100644
index ce7e69b3e1..0000000000
--- a/third-party/td/td/td/telegram/StoryInteractionInfo.hpp
+++ /dev/null
@@ -1,82 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StoryInteractionInfo.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StoryInteractionInfo::store(StorerT &storer) const {
-  using td::store;
-  bool has_recent_viewer_user_ids = !recent_viewer_user_ids_.empty();
-  bool has_reaction_count = reaction_count_ > 0;
-  bool know_has_viewers = true;
-  bool has_forward_count = forward_count_ > 0;
-  bool has_reaction_counts = !reaction_counts_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_recent_viewer_user_ids);
-  STORE_FLAG(has_reaction_count);
-  STORE_FLAG(know_has_viewers);
-  STORE_FLAG(has_viewers_);
-  STORE_FLAG(has_forward_count);
-  STORE_FLAG(has_reaction_counts);
-  END_STORE_FLAGS();
-  store(view_count_, storer);
-  if (has_recent_viewer_user_ids) {
-    store(recent_viewer_user_ids_, storer);
-  }
-  if (has_reaction_count) {
-    store(reaction_count_, storer);
-  }
-  if (has_forward_count) {
-    store(forward_count_, storer);
-  }
-  if (has_reaction_counts) {
-    store(reaction_counts_, storer);
-  }
-}
-
-template <class ParserT>
-void StoryInteractionInfo::parse(ParserT &parser) {
-  using td::parse;
-  bool has_recent_viewer_user_ids;
-  bool has_reaction_count;
-  bool know_has_viewers;
-  bool has_forward_count;
-  bool has_reaction_counts;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_recent_viewer_user_ids);
-  PARSE_FLAG(has_reaction_count);
-  PARSE_FLAG(know_has_viewers);
-  PARSE_FLAG(has_viewers_);
-  PARSE_FLAG(has_forward_count);
-  PARSE_FLAG(has_reaction_counts);
-  END_PARSE_FLAGS();
-  parse(view_count_, parser);
-  if (has_recent_viewer_user_ids) {
-    parse(recent_viewer_user_ids_, parser);
-  }
-  if (has_reaction_count) {
-    parse(reaction_count_, parser);
-  }
-  if (has_forward_count) {
-    parse(forward_count_, parser);
-  }
-  if (has_reaction_counts) {
-    parse(reaction_counts_, parser);
-  }
-
-  if (!know_has_viewers) {
-    has_viewers_ = (view_count_ > 0 && !has_recent_viewer_user_ids) || reaction_count_ > 0;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryListId.h b/third-party/td/td/td/telegram/StoryListId.h
deleted file mode 100644
index 202b6c2e8b..0000000000
--- a/third-party/td/td/td/telegram/StoryListId.h
+++ /dev/null
@@ -1,95 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class StoryListId {
-  enum class Type : int32 { None = -1, Main, Archive };
-  Type type_ = Type::None;
-
-  friend struct StoryListIdHash;
-
-  explicit StoryListId(Type type) : type_(type) {
-  }
-
- public:
-  StoryListId() = default;
-
-  explicit StoryListId(const td_api::object_ptr<td_api::StoryList> &story_list) {
-    if (story_list == nullptr) {
-      return;
-    }
-    switch (story_list->get_id()) {
-      case td_api::storyListMain::ID:
-        type_ = Type::Main;
-        break;
-      case td_api::storyListArchive::ID:
-        type_ = Type::Archive;
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  static StoryListId main() {
-    return StoryListId(Type::Main);
-  }
-
-  static StoryListId archive() {
-    return StoryListId(Type::Archive);
-  }
-
-  td_api::object_ptr<td_api::StoryList> get_story_list_object() const {
-    switch (type_) {
-      case Type::None:
-        return nullptr;
-      case Type::Main:
-        return td_api::make_object<td_api::storyListMain>();
-      case Type::Archive:
-        return td_api::make_object<td_api::storyListArchive>();
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  bool is_valid() const {
-    return type_ == Type::Main || type_ == Type::Archive;
-  }
-
-  bool operator==(const StoryListId &other) const {
-    return type_ == other.type_;
-  }
-
-  bool operator!=(const StoryListId &other) const {
-    return type_ != other.type_;
-  }
-};
-
-struct StoryListIdHash {
-  uint32 operator()(StoryListId story_list_id) const {
-    return Hash<int32>()(static_cast<int32>(story_list_id.type_));
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, StoryListId story_list_id) {
-  if (story_list_id == StoryListId::main()) {
-    return string_builder << "MainStoryList";
-  }
-  if (story_list_id == StoryListId::archive()) {
-    return string_builder << "ArchiveStoryList";
-  }
-  return string_builder << "InvalidStoryList";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryManager.cpp b/third-party/td/td/td/telegram/StoryManager.cpp
deleted file mode 100644
index eca4955ff5..0000000000
--- a/third-party/td/td/td/telegram/StoryManager.cpp
+++ /dev/null
@@ -1,6168 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StoryManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/HashtagHints.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MediaArea.hpp"
-#include "td/telegram/MessageEntity.hpp"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/NotificationId.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/ReactionManager.h"
-#include "td/telegram/ReactionType.hpp"
-#include "td/telegram/StoryContent.h"
-#include "td/telegram/StoryContentType.h"
-#include "td/telegram/StoryForwardInfo.h"
-#include "td/telegram/StoryForwardInfo.hpp"
-#include "td/telegram/StoryInteractionInfo.hpp"
-#include "td/telegram/StoryStealthMode.hpp"
-#include "td/telegram/StoryViewer.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-#include <limits>
-
-namespace td {
-
-class GetAllStoriesQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::stories_AllStories>> promise_;
-
- public:
-  explicit GetAllStoriesQuery(Promise<telegram_api::object_ptr<telegram_api::stories_AllStories>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(StoryListId story_list_id, bool is_next, const string &state) {
-    int32 flags = 0;
-    if (!state.empty()) {
-      flags |= telegram_api::stories_getAllStories::STATE_MASK;
-    }
-    bool hidden = story_list_id == StoryListId::archive();
-    send_query(G()->net_query_creator().create(telegram_api::stories_getAllStories(flags, is_next, hidden, state)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getAllStories>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetAllStoriesQuery: " << to_string(result);
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleStoriesHiddenQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  bool are_hidden_ = false;
-
- public:
-  explicit ToggleStoriesHiddenQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, bool are_hidden) {
-    dialog_id_ = dialog_id;
-    are_hidden_ = are_hidden;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_togglePeerStoriesHidden(std::move(input_peer), are_hidden), {{dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_togglePeerStoriesHidden>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ToggleStoriesHiddenQuery: " << result;
-    if (result) {
-      td_->story_manager_->on_update_dialog_stories_hidden(dialog_id_, are_hidden_);
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleStoriesHiddenQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetAllReadPeerStoriesQuery final : public Td::ResultHandler {
- public:
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::stories_getAllReadPeerStories()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getAllReadPeerStories>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetAllReadPeerStoriesQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), Promise<Unit>());
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for GetAllReadPeerStoriesQuery: " << status;
-  }
-};
-
-class ToggleAllStoriesHiddenQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleAllStoriesHiddenQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool all_stories_hidden) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::stories_toggleAllStoriesHidden(all_stories_hidden), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_toggleAllStoriesHidden>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ToggleAllStoriesHiddenQuery: " << result;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class IncrementStoryViewsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit IncrementStoryViewsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const vector<StoryId> &story_ids) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_incrementStoryViews(std::move(input_peer), StoryId::get_input_story_ids(story_ids)),
-        {{"view_story"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_incrementStoryViews>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "IncrementStoryViewsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReadStoriesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReadStoriesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, StoryId max_read_story_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_readStories(std::move(input_peer), max_read_story_id.get()), {{"view_story"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_readStories>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReadStoriesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SendStoryReactionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SendStoryReactionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(StoryFullId story_full_id, const ReactionType &reaction_type, bool add_to_recent) {
-    dialog_id_ = story_full_id.get_dialog_id();
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    CHECK(!reaction_type.is_paid_reaction());
-    if (reaction_type.is_empty()) {
-      add_to_recent = false;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_sendReaction(0, add_to_recent, std::move(input_peer), story_full_id.get_story_id().get(),
-                                           reaction_type.get_input_reaction()),
-        {{story_full_id}, {"view_story"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_sendReaction>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendStoryReactionQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "STORY_NOT_MODIFIED") {
-      return promise_.set_value(Unit());
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendStoryReactionQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStoryViewsListQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::stories_storyViewsList>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetStoryViewsListQuery(Promise<telegram_api::object_ptr<telegram_api::stories_storyViewsList>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, StoryId story_id, const string &query, bool only_contacts, bool prefer_forwards,
-            bool prefer_with_reaction, const string &offset, int32 limit) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-    if (!query.empty()) {
-      flags |= telegram_api::stories_getStoryViewsList::Q_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_getStoryViewsList(flags, only_contacts, prefer_with_reaction, prefer_forwards,
-                                                std::move(input_peer), query, story_id.get(), offset, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getStoryViewsList>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetStoryViewsListQuery: " << to_string(result);
-    td_->story_manager_->get_channel_differences_if_needed(std::move(result), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStoryViewsListQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStoryReactionsListQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::stories_storyReactionsList>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetStoryReactionsListQuery(
-      Promise<telegram_api::object_ptr<telegram_api::stories_storyReactionsList>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(StoryFullId story_full_id, const ReactionType &reaction_type, bool prefer_forwards, const string &offset,
-            int32 limit) {
-    dialog_id_ = story_full_id.get_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    CHECK(!reaction_type.is_paid_reaction());
-
-    int32 flags = 0;
-    if (!reaction_type.is_empty()) {
-      flags |= telegram_api::stories_getStoryReactionsList::REACTION_MASK;
-    }
-    if (!offset.empty()) {
-      flags |= telegram_api::stories_getStoryReactionsList::OFFSET_MASK;
-    }
-    send_query(G()->net_query_creator().create(telegram_api::stories_getStoryReactionsList(
-        flags, prefer_forwards, std::move(input_peer), story_full_id.get_story_id().get(),
-        reaction_type.get_input_reaction(), offset, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getStoryReactionsList>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetStoryReactionsListQuery: " << to_string(result);
-    td_->story_manager_->get_channel_differences_if_needed(std::move(result), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStoryReactionsListQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStoriesByIDQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  vector<StoryId> story_ids_;
-
- public:
-  explicit GetStoriesByIDQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, vector<StoryId> story_ids) {
-    dialog_id_ = dialog_id;
-    story_ids_ = std::move(story_ids);
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_getStoriesByID(std::move(input_peer), StoryId::get_input_story_ids(story_ids_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getStoriesByID>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetStoriesByIDQuery: " << to_string(result);
-    td_->story_manager_->on_get_stories(dialog_id_, std::move(story_ids_), std::move(result));
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStoriesByIDQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPinnedStoriesQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::stories_stories>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetPinnedStoriesQuery(Promise<telegram_api::object_ptr<telegram_api::stories_stories>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, StoryId offset_story_id, int32 limit) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_getPinnedStories(std::move(input_peer), offset_story_id.get(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getPinnedStories>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetPinnedStoriesQuery: " << to_string(result);
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetPinnedStoriesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStoriesArchiveQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::stories_stories>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetStoriesArchiveQuery(Promise<telegram_api::object_ptr<telegram_api::stories_stories>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, StoryId offset_story_id, int32 limit) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_getStoriesArchive(std::move(input_peer), offset_story_id.get(), limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getStoriesArchive>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetStoriesArchiveQuery: " << to_string(result);
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStoriesArchiveQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPeerStoriesQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::stories_peerStories>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit GetPeerStoriesQuery(Promise<telegram_api::object_ptr<telegram_api::stories_peerStories>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(
-        G()->net_query_creator().create(telegram_api::stories_getPeerStories(std::move(input_peer)), {{dialog_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getPeerStories>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetPeerStoriesQuery: " << to_string(result);
-    promise_.set_value(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetPeerStoriesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditStoryCoverQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-  StoryId story_id_;
-  double main_frame_timestamp_;
-  FileId file_id_;
-  string file_reference_;
-
- public:
-  explicit EditStoryCoverQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId owner_dialog_id, StoryId story_id, double main_frame_timestamp, FileId file_id,
-            telegram_api::object_ptr<telegram_api::InputMedia> input_media) {
-    dialog_id_ = owner_dialog_id;
-    story_id_ = story_id;
-    main_frame_timestamp_ = main_frame_timestamp;
-    file_id_ = file_id;
-    file_reference_ = FileManager::extract_file_reference(input_media);
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_editStory(telegram_api::stories_editStory::MEDIA_MASK, std::move(input_peer),
-                                        story_id.get(), std::move(input_media),
-                                        vector<telegram_api::object_ptr<telegram_api::MediaArea>>(), string(),
-                                        vector<telegram_api::object_ptr<telegram_api::MessageEntity>>(), Auto()),
-        {{StoryFullId{dialog_id_, story_id}}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_editStory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditStoryCoverQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for EditStoryCoverQuery: " << status;
-    if (!td_->auth_manager_->is_bot() && status.message() == "STORY_NOT_MODIFIED") {
-      return promise_.set_value(Unit());
-    }
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      td_->file_manager_->delete_file_reference(file_id_, file_reference_);
-      td_->file_reference_manager_->repair_file_reference(
-          file_id_, PromiseCreator::lambda([dialog_id = dialog_id_, story_id = story_id_,
-                                            main_frame_timestamp = main_frame_timestamp_,
-                                            promise = std::move(promise_)](Result<Unit> result) mutable {
-            if (result.is_error()) {
-              return promise.set_error(Status::Error(400, "Failed to edit cover"));
-            }
-
-            send_closure(G()->story_manager(), &StoryManager::edit_story_cover, dialog_id, story_id,
-                         main_frame_timestamp, std::move(promise));
-          }));
-      return;
-    }
-
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditStoryCoverQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditStoryPrivacyQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit EditStoryPrivacyQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, StoryId story_id, UserPrivacySettingRules &&privacy_rules) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = telegram_api::stories_editStory::PRIVACY_RULES_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_editStory(flags, std::move(input_peer), story_id.get(), nullptr,
-                                        vector<telegram_api::object_ptr<telegram_api::MediaArea>>(), string(),
-                                        vector<telegram_api::object_ptr<telegram_api::MessageEntity>>(),
-                                        privacy_rules.get_input_privacy_rules(td_)),
-        {{StoryFullId{dialog_id, story_id}}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_editStory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for EditStoryPrivacyQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && status.message() == "STORY_NOT_MODIFIED") {
-      return promise_.set_value(Unit());
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditStoryPrivacyQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleStoryPinnedQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ToggleStoryPinnedQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, StoryId story_id, bool is_pinned) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_togglePinned(std::move(input_peer), {story_id.get()}, is_pinned),
-        {{StoryFullId{dialog_id, story_id}}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_togglePinned>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ToggleStoryPinnedQuery: " << ptr;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ToggleStoryPinnedQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteStoriesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit DeleteStoriesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, const vector<StoryId> &story_ids) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_deleteStories(std::move(input_peer), StoryId::get_input_story_ids(story_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_deleteStories>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for DeleteStoriesQuery: " << ptr;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "DeleteStoriesQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class SearchStoriesQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundStories>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit SearchStoriesQuery(Promise<td_api::object_ptr<td_api::foundStories>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, string hashtag, const string &offset, int32 limit) {
-    dialog_id_ = dialog_id;
-    int32 flags = telegram_api::stories_searchPosts::HASHTAG_MASK;
-    telegram_api::object_ptr<telegram_api::InputPeer> input_peer;
-    if (dialog_id != DialogId()) {
-      flags |= telegram_api::stories_searchPosts::PEER_MASK;
-      input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-      CHECK(input_peer != nullptr);
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_searchPosts(flags, hashtag, nullptr, std::move(input_peer), offset, limit)));
-  }
-
-  void send(td_api::object_ptr<td_api::locationAddress> &&address, const string &offset, int32 limit) {
-    int32 flags = telegram_api::stories_searchPosts::AREA_MASK;
-
-    int32 address_flags = 0;
-    if (!address->state_.empty()) {
-      address_flags |= telegram_api::geoPointAddress::STATE_MASK;
-    }
-    if (!address->city_.empty()) {
-      address_flags |= telegram_api::geoPointAddress::CITY_MASK;
-    }
-    if (!address->street_.empty()) {
-      address_flags |= telegram_api::geoPointAddress::STREET_MASK;
-    }
-
-    auto area = telegram_api::make_object<telegram_api::mediaAreaGeoPoint>(
-        telegram_api::mediaAreaGeoPoint::ADDRESS_MASK,
-        telegram_api::make_object<telegram_api::mediaAreaCoordinates>(0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0),
-        telegram_api::make_object<telegram_api::geoPoint>(0, 0.0, 0.0, 0, 0),
-        telegram_api::make_object<telegram_api::geoPointAddress>(address_flags, address->country_code_, address->state_,
-                                                                 address->city_, address->street_));
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_searchPosts(flags, string(), std::move(area), nullptr, offset, limit)));
-  }
-
-  void send(const string &venue_provider, const string &venue_id, const string &offset, int32 limit) {
-    int32 flags = telegram_api::stories_searchPosts::AREA_MASK;
-    auto area = telegram_api::make_object<telegram_api::mediaAreaVenue>(
-        telegram_api::make_object<telegram_api::mediaAreaCoordinates>(0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0),
-        telegram_api::make_object<telegram_api::geoPoint>(0, 0.0, 0.0, 0, 0), string(), string(), venue_provider,
-        venue_id, string());
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_searchPosts(flags, string(), std::move(area), nullptr, offset, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_searchPosts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for SearchStoriesQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "SearchStoriesQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "SearchStoriesQuery");
-
-    auto total_count = ptr->count_;
-    if (total_count < static_cast<int32>(ptr->stories_.size())) {
-      LOG(ERROR) << "Receive total count = " << total_count << " and " << ptr->stories_.size() << " stories";
-      total_count = static_cast<int32>(ptr->stories_.size());
-    }
-    vector<td_api::object_ptr<td_api::story>> stories;
-    for (auto &found_story : ptr->stories_) {
-      DialogId owner_dialog_id(found_story->peer_);
-      auto story_id = td_->story_manager_->on_get_story(owner_dialog_id, std::move(found_story->story_));
-      if (story_id.is_valid()) {
-        auto story_object = td_->story_manager_->get_story_object({owner_dialog_id, story_id});
-        if (story_object == nullptr) {
-          LOG(ERROR) << "Receive deleted " << story_id << " from " << owner_dialog_id;
-        } else {
-          stories.push_back(std::move(story_object));
-        }
-      }
-    }
-
-    promise_.set_value(td_api::make_object<td_api::foundStories>(total_count, std::move(stories), ptr->next_offset_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "SEARCH_QUERY_EMPTY") {
-      return promise_.set_value(td_api::make_object<td_api::foundStories>());
-    }
-    if (dialog_id_ != DialogId()) {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SearchStoriesQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class TogglePinnedStoriesToTopQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit TogglePinnedStoriesToTopQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, vector<StoryId> story_ids) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_togglePinnedToTop(std::move(input_peer), StoryId::get_input_story_ids(story_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_togglePinnedToTop>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for TogglePinnedStoriesToTopQuery: " << ptr;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStoriesViewsQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStoriesViewsQuery final : public Td::ResultHandler {
-  vector<StoryId> story_ids_;
-  DialogId dialog_id_;
-
- public:
-  void send(DialogId dialog_id, vector<StoryId> story_ids) {
-    dialog_id_ = dialog_id;
-    story_ids_ = std::move(story_ids);
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_getStoriesViews(std::move(input_peer), StoryId::get_input_story_ids(story_ids_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getStoriesViews>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetStoriesViewsQuery: " << to_string(ptr);
-    td_->story_manager_->on_get_story_views(dialog_id_, story_ids_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for GetStoriesViewsQuery for " << story_ids_ << ": " << status;
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetStoriesViewsQuery");
-  }
-};
-
-class ReportStoryQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::ReportStoryResult>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit ReportStoryQuery(Promise<td_api::object_ptr<td_api::ReportStoryResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(StoryFullId story_full_id, const string &option_id, const string &text) {
-    dialog_id_ = story_full_id.get_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::stories_report(
-        std::move(input_peer), {story_full_id.get_story_id().get()}, BufferSlice(option_id), text)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_report>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ReportStoryQuery: " << to_string(ptr);
-    switch (ptr->get_id()) {
-      case telegram_api::reportResultReported::ID:
-        return promise_.set_value(td_api::make_object<td_api::reportStoryResultOk>());
-      case telegram_api::reportResultChooseOption::ID: {
-        auto options = telegram_api::move_object_as<telegram_api::reportResultChooseOption>(ptr);
-        if (options->options_.empty()) {
-          return promise_.set_value(td_api::make_object<td_api::reportStoryResultOk>());
-        }
-        vector<td_api::object_ptr<td_api::reportOption>> report_options;
-        for (auto &option : options->options_) {
-          report_options.push_back(
-              td_api::make_object<td_api::reportOption>(option->option_.as_slice().str(), option->text_));
-        }
-        return promise_.set_value(
-            td_api::make_object<td_api::reportStoryResultOptionRequired>(options->title_, std::move(report_options)));
-      }
-      case telegram_api::reportResultAddComment::ID: {
-        auto option = telegram_api::move_object_as<telegram_api::reportResultAddComment>(ptr);
-        return promise_.set_value(td_api::make_object<td_api::reportStoryResultTextRequired>(
-            option->option_.as_slice().str(), option->optional_));
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ReportStoryQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetStoriesMaxIdsQuery final : public Td::ResultHandler {
-  vector<DialogId> dialog_ids_;
-
- public:
-  void send(vector<DialogId> dialog_ids, vector<telegram_api::object_ptr<telegram_api::InputPeer>> &&input_peers) {
-    dialog_ids_ = std::move(dialog_ids);
-    send_query(G()->net_query_creator().create(telegram_api::stories_getPeerMaxIDs(std::move(input_peers))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getPeerMaxIDs>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->story_manager_->on_get_dialog_max_active_story_ids(dialog_ids_, result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    td_->story_manager_->on_get_dialog_max_active_story_ids(dialog_ids_, Auto());
-  }
-};
-
-class ActivateStealthModeQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ActivateStealthModeQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(
-        G()->net_query_creator().create(telegram_api::stories_activateStealthMode(0, true, true), {{"view_story"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_activateStealthMode>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ActivateStealthModeQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetChatsToSendStoriesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetChatsToSendStoriesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::stories_getChatsToSend()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_getChatsToSend>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto chats_ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetChatsToSendStoriesQuery: " << to_string(chats_ptr);
-    switch (chats_ptr->get_id()) {
-      case telegram_api::messages_chats::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chats>(chats_ptr);
-        td_->story_manager_->on_get_dialogs_to_send_stories(std::move(chats->chats_));
-        break;
-      }
-      case telegram_api::messages_chatsSlice::ID: {
-        auto chats = move_tl_object_as<telegram_api::messages_chatsSlice>(chats_ptr);
-        LOG(ERROR) << "Receive chatsSlice in result of GetCreatedPublicChannelsQuery";
-        td_->story_manager_->on_get_dialogs_to_send_stories(std::move(chats->chats_));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CanSendStoryQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::CanSendStoryResult>> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit CanSendStoryQuery(Promise<td_api::object_ptr<td_api::CanSendStoryResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(telegram_api::stories_canSendStory(std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_canSendStory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(td_api::make_object<td_api::canSendStoryResultOk>());
-  }
-
-  void on_error(Status status) final {
-    auto result = StoryManager::get_can_send_story_result_object(status);
-    if (result != nullptr) {
-      return promise_.set_value(std::move(result));
-    }
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "CanSendStoryQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-class StoryManager::SendStoryQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  unique_ptr<PendingStory> pending_story_;
-
- public:
-  void send(unique_ptr<PendingStory> pending_story, telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-    pending_story_ = std::move(pending_story);
-    CHECK(pending_story_ != nullptr);
-    dialog_id_ = pending_story_->dialog_id_;
-
-    const auto *story = pending_story_->story_.get();
-    const StoryContent *content = story->content_.get();
-    CHECK(input_file != nullptr);
-    auto input_media = get_story_content_input_media(td_, content, std::move(input_file));
-    CHECK(input_media != nullptr);
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    telegram_api::object_ptr<telegram_api::InputPeer> fwd_input_peer;
-    int32 fwd_story_id = 0;
-    if (story->forward_info_ != nullptr) {
-      fwd_input_peer = td_->dialog_manager_->get_input_peer(pending_story_->forward_from_story_full_id_.get_dialog_id(),
-                                                            AccessRights::Read);
-      if (fwd_input_peer == nullptr) {
-        return on_error(Status::Error(400, "Can't access the story to repost"));
-      }
-      fwd_story_id = pending_story_->forward_from_story_full_id_.get_story_id().get();
-    }
-
-    const FormattedText &caption = story->caption_;
-    auto entities = get_input_message_entities(td_->user_manager_.get(), &caption, "SendStoryQuery");
-    if (!td_->auth_manager_->is_bot() &&
-        !td_->option_manager_->get_option_boolean("can_use_text_entities_in_story_caption")) {
-      entities.clear();
-    }
-    auto privacy_rules = story->privacy_rules_.get_input_privacy_rules(td_);
-    auto period = story->expire_date_ - story->date_;
-    int32 flags = 0;
-    if (!caption.text.empty()) {
-      flags |= telegram_api::stories_sendStory::CAPTION_MASK;
-    }
-    if (!entities.empty()) {
-      flags |= telegram_api::stories_sendStory::ENTITIES_MASK;
-    }
-    if (period != 86400) {
-      flags |= telegram_api::stories_sendStory::PERIOD_MASK;
-    }
-    if (story->forward_info_ != nullptr) {
-      flags |= telegram_api::stories_sendStory::FWD_FROM_ID_MASK;
-      flags |= telegram_api::stories_sendStory::FWD_FROM_STORY_MASK;
-    }
-    auto input_media_areas = MediaArea::get_input_media_areas(td_, story->areas_);
-    if (!input_media_areas.empty()) {
-      flags |= telegram_api::stories_sendStory::MEDIA_AREAS_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_sendStory(flags, pending_story_->story_->is_pinned_, story->noforwards_,
-                                        story->forward_info_ != nullptr, std::move(input_peer), std::move(input_media),
-                                        std::move(input_media_areas), caption.text, std::move(entities),
-                                        std::move(privacy_rules), pending_story_->random_id_, period,
-                                        std::move(fwd_input_peer), fwd_story_id),
-        {{pending_story_->dialog_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_sendStory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for SendStoryQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr),
-        PromiseCreator::lambda([pending_story = std::move(pending_story_)](Result<Unit> &&result) mutable {
-          send_closure(G()->story_manager(), &StoryManager::delete_pending_story, std::move(pending_story),
-                       result.is_ok() ? Status::OK() : result.move_as_error());
-        }));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for SendStoryQuery: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, story will be re-sent after restart
-      return;
-    }
-
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      td_->story_manager_->on_send_story_file_parts_missing(std::move(pending_story_), std::move(bad_parts));
-      return;
-    }
-
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendStoryQuery");
-    td_->story_manager_->delete_pending_story(std::move(pending_story_), std::move(status));
-  }
-};
-
-class StoryManager::EditStoryQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  unique_ptr<PendingStory> pending_story_;
-
- public:
-  void send(unique_ptr<PendingStory> pending_story, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-            const BeingEditedStory *edited_story) {
-    pending_story_ = std::move(pending_story);
-    CHECK(pending_story_ != nullptr);
-    dialog_id_ = pending_story_->dialog_id_;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Write);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = 0;
-
-    telegram_api::object_ptr<telegram_api::InputMedia> input_media;
-    const StoryContent *content = edited_story->content_.get();
-    if (content != nullptr) {
-      CHECK(input_file != nullptr);
-      input_media = get_story_content_input_media(td_, content, std::move(input_file));
-      CHECK(input_media != nullptr);
-      flags |= telegram_api::stories_editStory::MEDIA_MASK;
-    }
-    vector<telegram_api::object_ptr<telegram_api::MediaArea>> input_media_areas;
-    if (edited_story->edit_media_areas_) {
-      input_media_areas = MediaArea::get_input_media_areas(td_, edited_story->areas_);
-      flags |= telegram_api::stories_editStory::MEDIA_AREAS_MASK;
-    }
-    vector<telegram_api::object_ptr<telegram_api::MessageEntity>> entities;
-    if (edited_story->edit_caption_) {
-      flags |= telegram_api::stories_editStory::CAPTION_MASK;
-      if (td_->option_manager_->get_option_boolean("can_use_text_entities_in_story_caption")) {
-        flags |= telegram_api::stories_editStory::ENTITIES_MASK;
-        entities = get_input_message_entities(td_->user_manager_.get(), &edited_story->caption_, "EditStoryQuery");
-      }
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_editStory(flags, std::move(input_peer), pending_story_->story_id_.get(),
-                                        std::move(input_media), std::move(input_media_areas),
-                                        edited_story->caption_.text, std::move(entities), Auto()),
-        {{StoryFullId{pending_story_->dialog_id_, pending_story_->story_id_}}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_editStory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditStoryQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(
-        std::move(ptr),
-        PromiseCreator::lambda([pending_story = std::move(pending_story_)](Result<Unit> &&result) mutable {
-          send_closure(G()->story_manager(), &StoryManager::delete_pending_story, std::move(pending_story),
-                       result.is_ok() ? Status::OK() : result.move_as_error());
-        }));
-  }
-
-  void on_error(Status status) final {
-    LOG(INFO) << "Receive error for EditStoryQuery: " << status;
-    if (G()->close_flag() && G()->use_message_database()) {
-      // do not send error, story will be edited after restart
-      return;
-    }
-
-    if (!td_->auth_manager_->is_bot() && status.message() == "STORY_NOT_MODIFIED") {
-      return td_->story_manager_->delete_pending_story(std::move(pending_story_), Status::OK());
-    }
-
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      td_->story_manager_->on_send_story_file_parts_missing(std::move(pending_story_), std::move(bad_parts));
-      return;
-    }
-
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditStoryQuery");
-    td_->story_manager_->delete_pending_story(std::move(pending_story_), std::move(status));
-  }
-};
-
-class StoryManager::EditBusinessStoryQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  unique_ptr<PendingStory> pending_story_;
-
- public:
-  void send(unique_ptr<PendingStory> pending_story, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-            const BeingEditedBusinessStory *edited_story) {
-    pending_story_ = std::move(pending_story);
-    CHECK(pending_story_ != nullptr);
-    dialog_id_ = pending_story_->dialog_id_;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-
-    int32 flags = telegram_api::stories_editStory::MEDIA_MASK | telegram_api::stories_editStory::MEDIA_AREAS_MASK |
-                  telegram_api::stories_editStory::CAPTION_MASK | telegram_api::stories_editStory::ENTITIES_MASK |
-                  telegram_api::stories_editStory::PRIVACY_RULES_MASK;
-    const StoryContent *content = edited_story->content_.get();
-    CHECK(input_file != nullptr);
-    auto input_media = get_story_content_input_media(td_, content, std::move(input_file));
-    CHECK(input_media != nullptr);
-    auto input_media_areas = MediaArea::get_input_media_areas(td_, edited_story->areas_);
-    auto entities =
-        get_input_message_entities(td_->user_manager_.get(), &edited_story->caption_, "EditBusinessStoryQuery");
-    auto input_privacy_rules = edited_story->privacy_rules_.get_input_privacy_rules(td_);
-    send_query(G()->net_query_creator().create(
-        telegram_api::stories_editStory(flags, std::move(input_peer), pending_story_->story_id_.get(),
-                                        std::move(input_media), std::move(input_media_areas),
-                                        edited_story->caption_.text, std::move(entities),
-                                        std::move(input_privacy_rules)),
-        {{StoryFullId{pending_story_->dialog_id_, pending_story_->story_id_}}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::stories_editStory>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for EditBusinessStoryQuery: " << to_string(ptr);
-
-    td_->story_manager_->on_edit_business_story(std::move(pending_story_), std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    CHECK(td_->auth_manager_->is_bot());
-    LOG(INFO) << "Receive error for EditBusinessStoryQuery: " << status;
-
-    auto bad_parts = FileManager::get_missing_file_parts(status);
-    if (!bad_parts.empty()) {
-      td_->story_manager_->on_send_story_file_parts_missing(std::move(pending_story_), std::move(bad_parts));
-      return;
-    }
-
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "EditBusinessStoryQuery");
-    td_->story_manager_->delete_pending_story(std::move(pending_story_), std::move(status));
-  }
-};
-
-class StoryManager::UploadMediaCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->story_manager(), &StoryManager::on_upload_story, file_upload_id, std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->story_manager(), &StoryManager::on_upload_story_error, file_upload_id, std::move(error));
-  }
-};
-
-StoryManager::PendingStory::PendingStory(DialogId dialog_id, StoryId story_id, StoryFullId forward_from_story_full_id,
-                                         uint32 send_story_num, int64 random_id, unique_ptr<Story> &&story)
-    : dialog_id_(dialog_id)
-    , story_id_(story_id)
-    , forward_from_story_full_id_(forward_from_story_full_id)
-    , send_story_num_(send_story_num)
-    , random_id_(random_id)
-    , story_(std::move(story)) {
-  if (story_ != nullptr && story_->content_ != nullptr) {
-    file_upload_id_ = {get_story_content_any_file_id(story_->content_.get()), FileManager::get_internal_upload_id()};
-  }
-}
-
-StoryManager::ReadyToSendStory::ReadyToSendStory(unique_ptr<PendingStory> &&pending_story,
-                                                 telegram_api::object_ptr<telegram_api::InputFile> &&input_file)
-    : pending_story_(std::move(pending_story)), input_file_(std::move(input_file)) {
-}
-
-template <class StorerT>
-void StoryManager::Story::store(StorerT &storer) const {
-  using td::store;
-  bool has_receive_date = receive_date_ != 0;
-  bool has_interaction_info = !interaction_info_.is_empty();
-  bool has_privacy_rules = privacy_rules_ != UserPrivacySettingRules();
-  bool has_content = content_ != nullptr;
-  bool has_caption = !caption_.text.empty();
-  bool has_areas = !areas_.empty();
-  bool has_chosen_reaction_type = !chosen_reaction_type_.is_empty();
-  bool has_forward_info = forward_info_ != nullptr;
-  bool has_sender_dialog_id = sender_dialog_id_ != DialogId();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_edited_);
-  STORE_FLAG(is_pinned_);
-  STORE_FLAG(is_public_);
-  STORE_FLAG(is_for_close_friends_);
-  STORE_FLAG(noforwards_);
-  STORE_FLAG(has_receive_date);
-  STORE_FLAG(has_interaction_info);
-  STORE_FLAG(has_privacy_rules);
-  STORE_FLAG(has_content);
-  STORE_FLAG(has_caption);
-  STORE_FLAG(is_for_contacts_);
-  STORE_FLAG(is_for_selected_contacts_);
-  STORE_FLAG(has_areas);
-  STORE_FLAG(has_chosen_reaction_type);
-  STORE_FLAG(is_outgoing_);
-  STORE_FLAG(has_forward_info);
-  STORE_FLAG(has_sender_dialog_id);
-  END_STORE_FLAGS();
-  store(date_, storer);
-  store(expire_date_, storer);
-  if (has_receive_date) {
-    store(receive_date_, storer);
-  }
-  if (has_interaction_info) {
-    store(interaction_info_, storer);
-  }
-  if (has_privacy_rules) {
-    store(privacy_rules_, storer);
-  }
-  if (has_content) {
-    store_story_content(content_.get(), storer);
-  }
-  if (has_caption) {
-    store(caption_, storer);
-  }
-  if (has_areas) {
-    store(areas_, storer);
-  }
-  if (has_chosen_reaction_type) {
-    store(chosen_reaction_type_, storer);
-  }
-  if (has_forward_info) {
-    store(forward_info_, storer);
-  }
-  if (has_sender_dialog_id) {
-    store(sender_dialog_id_, storer);
-  }
-}
-
-template <class ParserT>
-void StoryManager::Story::parse(ParserT &parser) {
-  using td::parse;
-  bool has_receive_date;
-  bool has_interaction_info;
-  bool has_privacy_rules;
-  bool has_content;
-  bool has_caption;
-  bool has_areas;
-  bool has_chosen_reaction_type;
-  bool has_forward_info;
-  bool has_sender_dialog_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_edited_);
-  PARSE_FLAG(is_pinned_);
-  PARSE_FLAG(is_public_);
-  PARSE_FLAG(is_for_close_friends_);
-  PARSE_FLAG(noforwards_);
-  PARSE_FLAG(has_receive_date);
-  PARSE_FLAG(has_interaction_info);
-  PARSE_FLAG(has_privacy_rules);
-  PARSE_FLAG(has_content);
-  PARSE_FLAG(has_caption);
-  PARSE_FLAG(is_for_contacts_);
-  PARSE_FLAG(is_for_selected_contacts_);
-  PARSE_FLAG(has_areas);
-  PARSE_FLAG(has_chosen_reaction_type);
-  PARSE_FLAG(is_outgoing_);
-  PARSE_FLAG(has_forward_info);
-  PARSE_FLAG(has_sender_dialog_id);
-  END_PARSE_FLAGS();
-  parse(date_, parser);
-  parse(expire_date_, parser);
-  if (has_receive_date) {
-    parse(receive_date_, parser);
-  }
-  if (has_interaction_info) {
-    parse(interaction_info_, parser);
-  }
-  if (has_privacy_rules) {
-    parse(privacy_rules_, parser);
-  }
-  if (has_content) {
-    parse_story_content(content_, parser);
-  }
-  if (has_caption) {
-    parse(caption_, parser);
-  }
-  if (has_areas) {
-    parse(areas_, parser);
-  }
-  if (has_chosen_reaction_type) {
-    parse(chosen_reaction_type_, parser);
-  }
-  if (has_forward_info) {
-    parse(forward_info_, parser);
-  }
-  if (has_sender_dialog_id) {
-    parse(sender_dialog_id_, parser);
-  }
-}
-
-template <class StorerT>
-void StoryManager::StoryInfo::store(StorerT &storer) const {
-  using td::store;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_for_close_friends_);
-  END_STORE_FLAGS();
-  store(story_id_, storer);
-  store(date_, storer);
-  store(expire_date_, storer);
-}
-
-template <class ParserT>
-void StoryManager::StoryInfo::parse(ParserT &parser) {
-  using td::parse;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_for_close_friends_);
-  END_PARSE_FLAGS();
-  parse(story_id_, parser);
-  parse(date_, parser);
-  parse(expire_date_, parser);
-}
-
-template <class StorerT>
-void StoryManager::PendingStory::store(StorerT &storer) const {
-  using td::store;
-  bool is_edit = story_id_.is_server();
-  bool has_forward_from_story_full_id = forward_from_story_full_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_edit);
-  STORE_FLAG(has_forward_from_story_full_id);
-  END_STORE_FLAGS();
-  store(dialog_id_, storer);
-  if (is_edit) {
-    store(story_id_, storer);
-  } else {
-    store(random_id_, storer);
-  }
-  store(story_, storer);
-  if (has_forward_from_story_full_id) {
-    store(forward_from_story_full_id_, storer);
-  }
-}
-
-template <class ParserT>
-void StoryManager::PendingStory::parse(ParserT &parser) {
-  using td::parse;
-  bool is_edit;
-  bool has_forward_from_story_full_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_edit);
-  PARSE_FLAG(has_forward_from_story_full_id);
-  END_PARSE_FLAGS();
-  parse(dialog_id_, parser);
-  if (is_edit) {
-    parse(story_id_, parser);
-  } else {
-    parse(random_id_, parser);
-  }
-  parse(story_, parser);
-  if (has_forward_from_story_full_id) {
-    parse(forward_from_story_full_id_, parser);
-  }
-  if (story_ != nullptr && story_->content_ != nullptr) {
-    file_upload_id_ = {get_story_content_any_file_id(story_->content_.get()), FileManager::get_internal_upload_id()};
-  }
-}
-
-template <class StorerT>
-void StoryManager::SavedActiveStories::store(StorerT &storer) const {
-  using td::store;
-  CHECK(!story_infos_.empty());
-  bool has_max_read_story_id = max_read_story_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_max_read_story_id);
-  END_STORE_FLAGS();
-  store(story_infos_, storer);
-  if (has_max_read_story_id) {
-    store(max_read_story_id_, storer);
-  }
-}
-
-template <class ParserT>
-void StoryManager::SavedActiveStories::parse(ParserT &parser) {
-  using td::parse;
-  bool has_max_read_story_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_max_read_story_id);
-  END_PARSE_FLAGS();
-  parse(story_infos_, parser);
-  if (has_max_read_story_id) {
-    parse(max_read_story_id_, parser);
-  }
-}
-
-template <class StorerT>
-void StoryManager::SavedStoryList::store(StorerT &storer) const {
-  using td::store;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_more_);
-  END_STORE_FLAGS();
-  store(state_, storer);
-  store(total_count_, storer);
-}
-
-template <class ParserT>
-void StoryManager::SavedStoryList::parse(ParserT &parser) {
-  using td::parse;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_more_);
-  END_PARSE_FLAGS();
-  parse(state_, parser);
-  parse(total_count_, parser);
-}
-
-StoryManager::StoryManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_media_callback_ = std::make_shared<UploadMediaCallback>();
-
-  story_reload_timeout_.set_callback(on_story_reload_timeout_callback);
-  story_reload_timeout_.set_callback_data(static_cast<void *>(this));
-
-  story_expire_timeout_.set_callback(on_story_expire_timeout_callback);
-  story_expire_timeout_.set_callback_data(static_cast<void *>(this));
-
-  story_can_get_viewers_timeout_.set_callback(on_story_can_get_viewers_timeout_callback);
-  story_can_get_viewers_timeout_.set_callback_data(static_cast<void *>(this));
-
-  if (G()->use_message_database() && td_->auth_manager_->is_authorized() && !td_->auth_manager_->is_bot()) {
-    for (auto story_list_id : {StoryListId::main(), StoryListId::archive()}) {
-      auto r_value = G()->td_db()->get_story_db_sync()->get_active_story_list_state(story_list_id);
-      if (r_value.is_ok() && !r_value.ok().empty()) {
-        SavedStoryList saved_story_list;
-        auto status = log_event_parse(saved_story_list, r_value.ok().as_slice());
-        if (status.is_error()) {
-          LOG(ERROR) << "Load invalid state for " << story_list_id << " from database";
-        } else {
-          LOG(INFO) << "Load state for " << story_list_id << " from database: " << saved_story_list.state_;
-          auto &story_list = get_story_list(story_list_id);
-          story_list.state_ = std::move(saved_story_list.state_);
-          story_list.server_total_count_ = td::max(saved_story_list.total_count_, 0);
-          story_list.server_has_more_ = saved_story_list.has_more_;
-          story_list.database_has_more_ = true;
-        }
-      }
-    }
-  }
-}
-
-StoryManager::~StoryManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), story_full_id_to_file_source_id_, stories_,
-                                              stories_by_global_id_, inaccessible_story_full_ids_,
-                                              deleted_story_full_ids_, failed_to_load_story_full_ids_, story_messages_,
-                                              story_quick_reply_messages_, active_stories_, updated_active_stories_,
-                                              max_read_story_ids_, failed_to_load_active_stories_);
-}
-
-void StoryManager::start_up() {
-  if (!td_->auth_manager_->is_authorized()) {
-    return;
-  }
-
-  auto stealth_mode_str = G()->td_db()->get_binlog_pmc()->get(get_story_stealth_mode_key());
-  if (!stealth_mode_str.empty()) {
-    log_event_parse(stealth_mode_, stealth_mode_str).ensure();
-    stealth_mode_.update();
-    LOG(INFO) << stealth_mode_;
-    if (stealth_mode_.is_empty()) {
-      G()->td_db()->get_binlog_pmc()->erase(get_story_stealth_mode_key());
-    } else {
-      schedule_stealth_mode_update();
-    }
-  }
-  send_update_story_stealth_mode();
-
-  try_synchronize_archive_all_stories();
-  load_expired_database_stories();
-
-  for (auto story_list_id : {StoryListId::main(), StoryListId::archive()}) {
-    update_story_list_sent_total_count(story_list_id, "start_up");
-  }
-}
-
-void StoryManager::timeout_expired() {
-  load_expired_database_stories();
-
-  if (channels_to_send_stories_inited_ && get_dialogs_to_send_stories_queries_.empty() &&
-      Time::now() > next_reload_channels_to_send_stories_time_ && !td_->auth_manager_->is_bot()) {
-    reload_dialogs_to_send_stories(Auto());
-  }
-}
-
-void StoryManager::hangup() {
-  fail_promise_map(reload_story_queries_, Global::request_aborted_error());
-  fail_promise_map(delete_yet_unsent_story_queries_, Global::request_aborted_error());
-
-  stop();
-}
-
-void StoryManager::tear_down() {
-  parent_.reset();
-}
-
-void StoryManager::on_story_reload_timeout_callback(void *story_manager_ptr, int64 story_global_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto story_manager = static_cast<StoryManager *>(story_manager_ptr);
-  send_closure_later(story_manager->actor_id(story_manager), &StoryManager::on_story_reload_timeout, story_global_id);
-}
-
-void StoryManager::on_story_reload_timeout(int64 story_global_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto story_full_id = stories_by_global_id_.get(story_global_id);
-  auto story = get_story(story_full_id);
-  if (story == nullptr || opened_stories_.count(story_full_id) == 0) {
-    LOG(INFO) << "There is no need to reload " << story_full_id;
-    return;
-  }
-
-  reload_story(story_full_id, Promise<Unit>(), "on_story_reload_timeout");
-  story_reload_timeout_.set_timeout_in(story_global_id, OPENED_STORY_POLL_PERIOD);
-}
-
-void StoryManager::on_story_expire_timeout_callback(void *story_manager_ptr, int64 story_global_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto story_manager = static_cast<StoryManager *>(story_manager_ptr);
-  send_closure_later(story_manager->actor_id(story_manager), &StoryManager::on_story_expire_timeout, story_global_id);
-}
-
-void StoryManager::on_story_expire_timeout(int64 story_global_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto story_full_id = stories_by_global_id_.get(story_global_id);
-  auto story = get_story(story_full_id);
-  if (story == nullptr) {
-    return;
-  }
-  if (is_active_story(story)) {
-    // timeout used monotonic time instead of wall clock time
-    LOG(INFO) << "Receive timeout for non-expired " << story_full_id << ": expire_date = " << story->expire_date_
-              << ", current time = " << G()->unix_time();
-    return set_story_expire_timeout(story);
-  }
-
-  LOG(INFO) << "Have expired " << story_full_id;
-  auto owner_dialog_id = story_full_id.get_dialog_id();
-  CHECK(owner_dialog_id.is_valid());
-  if (story->content_ != nullptr && !can_access_expired_story(owner_dialog_id, story)) {
-    on_delete_story(story_full_id);  // also updates active stories
-  } else {
-    auto active_stories = get_active_stories(owner_dialog_id);
-    if (active_stories != nullptr && contains(active_stories->story_ids_, story_full_id.get_story_id())) {
-      auto story_ids = active_stories->story_ids_;
-      on_update_active_stories(owner_dialog_id, active_stories->max_read_story_id_, std::move(story_ids),
-                               Promise<Unit>(), "on_story_expire_timeout");
-    }
-  }
-}
-
-void StoryManager::on_story_can_get_viewers_timeout_callback(void *story_manager_ptr, int64 story_global_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto story_manager = static_cast<StoryManager *>(story_manager_ptr);
-  send_closure_later(story_manager->actor_id(story_manager), &StoryManager::on_story_can_get_viewers_timeout,
-                     story_global_id);
-}
-
-void StoryManager::on_story_can_get_viewers_timeout(int64 story_global_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto story_full_id = stories_by_global_id_.get(story_global_id);
-  auto story = get_story(story_full_id);
-  if (story == nullptr) {
-    return;
-  }
-
-  LOG(INFO) << "Have expired viewers in " << story_full_id;
-  if (has_unexpired_viewers(story_full_id, story)) {
-    // timeout used monotonic time instead of wall clock time
-    // also a reaction could have been added on the story
-    LOG(INFO) << "Receive timeout for " << story_full_id
-              << " with available viewers: expire_date = " << story->expire_date_
-              << ", current time = " << G()->unix_time();
-    return set_story_can_get_viewers_timeout(story);
-  }
-
-  // can_get_viewers flag could have been changed; reload the story to repair it
-  reload_story(story_full_id, Promise<Unit>(), "on_story_can_get_viewers_timeout");
-}
-
-void StoryManager::load_expired_database_stories() {
-  if (!G()->use_message_database()) {
-    if (!td_->auth_manager_->is_bot()) {
-      set_timeout_in(Random::fast(300, 420));
-    }
-    return;
-  }
-
-  LOG(INFO) << "Load " << load_expired_database_stories_next_limit_ << " expired stories";
-  G()->td_db()->get_story_db_async()->get_expiring_stories(
-      G()->unix_time() - 1, load_expired_database_stories_next_limit_,
-      PromiseCreator::lambda([actor_id = actor_id(this)](Result<vector<StoryDbStory>> r_stories) {
-        if (G()->close_flag()) {
-          return;
-        }
-        CHECK(r_stories.is_ok());
-        send_closure(actor_id, &StoryManager::on_load_expired_database_stories, r_stories.move_as_ok());
-      }));
-}
-
-void StoryManager::on_load_expired_database_stories(vector<StoryDbStory> stories) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  int32 next_request_delay;
-  if (stories.size() == static_cast<size_t>(load_expired_database_stories_next_limit_)) {
-    CHECK(load_expired_database_stories_next_limit_ < (1 << 30));
-    load_expired_database_stories_next_limit_ *= 2;
-    next_request_delay = 1;
-  } else {
-    load_expired_database_stories_next_limit_ = DEFAULT_LOADED_EXPIRED_STORIES;
-    next_request_delay = Random::fast(300, 420);
-  }
-  set_timeout_in(next_request_delay);
-
-  LOG(INFO) << "Receive " << stories.size() << " expired stories with next request in " << next_request_delay
-            << " seconds";
-  for (auto &database_story : stories) {
-    auto story = parse_story(database_story.story_full_id_, std::move(database_story.data_));
-    if (story != nullptr) {
-      LOG(ERROR) << "Receive non-expired " << database_story.story_full_id_;
-    }
-  }
-}
-
-bool StoryManager::is_my_story(DialogId owner_dialog_id) const {
-  return owner_dialog_id == td_->dialog_manager_->get_my_dialog_id();
-}
-
-bool StoryManager::can_access_expired_story(DialogId owner_dialog_id, const Story *story) const {
-  CHECK(story != nullptr);
-  CHECK(story->content_ != nullptr);
-  // non-pinned non-editable stories can't be accessed after they expire
-  return story->is_pinned_ || can_edit_stories(owner_dialog_id);
-}
-
-bool StoryManager::can_get_story_view_count(DialogId owner_dialog_id) {
-  // result must be stable over time
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      return is_my_story(owner_dialog_id);
-    case DialogType::Chat:
-    case DialogType::Channel:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      return true;
-  }
-}
-
-bool StoryManager::can_post_stories(DialogId owner_dialog_id) const {
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      return is_my_story(owner_dialog_id) != td_->auth_manager_->is_bot();
-    case DialogType::Channel:
-      return !td_->auth_manager_->is_bot() &&
-             td_->chat_manager_->get_channel_status(owner_dialog_id.get_channel_id()).can_post_stories();
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      return false;
-  }
-}
-
-bool StoryManager::can_edit_stories(DialogId owner_dialog_id) const {
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      return is_my_story(owner_dialog_id) != td_->auth_manager_->is_bot();
-    case DialogType::Channel:
-      return !td_->auth_manager_->is_bot() &&
-             td_->chat_manager_->get_channel_status(owner_dialog_id.get_channel_id()).can_edit_stories();
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      return false;
-  }
-}
-
-bool StoryManager::can_delete_stories(DialogId owner_dialog_id) const {
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      return is_my_story(owner_dialog_id) != td_->auth_manager_->is_bot();
-    case DialogType::Channel:
-      return !td_->auth_manager_->is_bot() &&
-             td_->chat_manager_->get_channel_status(owner_dialog_id.get_channel_id()).can_delete_stories();
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      return false;
-  }
-}
-
-bool StoryManager::can_edit_story(StoryFullId story_full_id, const Story *story) const {
-  if (!story_full_id.get_story_id().is_server()) {
-    return false;
-  }
-  auto owner_dialog_id = story_full_id.get_dialog_id();
-  return can_edit_stories(owner_dialog_id) ||
-         (story != nullptr && story->is_outgoing_ && can_post_stories(owner_dialog_id));
-}
-
-bool StoryManager::can_toggle_story_is_pinned(StoryFullId story_full_id, const Story *story) const {
-  if (!story_full_id.get_story_id().is_server()) {
-    return false;
-  }
-  return can_edit_stories(story_full_id.get_dialog_id());
-}
-
-bool StoryManager::can_delete_story(StoryFullId story_full_id, const Story *story) const {
-  if (!story_full_id.get_story_id().is_server()) {
-    return true;
-  }
-  auto owner_dialog_id = story_full_id.get_dialog_id();
-  return can_delete_stories(owner_dialog_id) || (story->is_outgoing_ && can_post_stories(owner_dialog_id));
-}
-
-bool StoryManager::is_active_story(const Story *story) {
-  return story != nullptr && G()->unix_time() < story->expire_date_;
-}
-
-int32 StoryManager::get_story_viewers_expire_date(const Story *story) const {
-  return story->expire_date_ +
-         narrow_cast<int32>(td_->option_manager_->get_option_integer("story_viewers_expiration_delay", 86400));
-}
-
-const StoryManager::Story *StoryManager::get_story(StoryFullId story_full_id) const {
-  return stories_.get_pointer(story_full_id);
-}
-
-StoryManager::Story *StoryManager::get_story_editable(StoryFullId story_full_id) {
-  return stories_.get_pointer(story_full_id);
-}
-
-StoryManager::Story *StoryManager::get_story_force(StoryFullId story_full_id, const char *source) {
-  if (!story_full_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto story = get_story_editable(story_full_id);
-  if (story != nullptr && story->content_ != nullptr) {
-    return story;
-  }
-
-  if (!G()->use_message_database() || failed_to_load_story_full_ids_.count(story_full_id) > 0 ||
-      is_inaccessible_story(story_full_id) || deleted_story_full_ids_.count(story_full_id) > 0 ||
-      !story_full_id.get_story_id().is_server()) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load " << story_full_id << " from database from " << source;
-
-  auto r_value = G()->td_db()->get_story_db_sync()->get_story(story_full_id);
-  if (r_value.is_error()) {
-    failed_to_load_story_full_ids_.insert(story_full_id);
-    return nullptr;
-  }
-  return on_get_story_from_database(story_full_id, r_value.ok(), source);
-}
-
-unique_ptr<StoryManager::Story> StoryManager::parse_story(StoryFullId story_full_id, const BufferSlice &value) {
-  auto story = make_unique<Story>();
-  auto status = log_event_parse(*story, value.as_slice());
-  if (status.is_error()) {
-    LOG(ERROR) << "Receive invalid " << story_full_id << " from database: " << status << ' '
-               << format::as_hex_dump<4>(value.as_slice());
-    delete_story_from_database(story_full_id);
-    reload_story(story_full_id, Auto(), "parse_story");
-    return nullptr;
-  }
-  if (story->content_ == nullptr) {
-    LOG(ERROR) << "Receive " << story_full_id << " without content from database";
-    delete_story_from_database(story_full_id);
-    return nullptr;
-  }
-  if (!story_full_id.get_story_id().is_server()) {
-    LOG(ERROR) << "Receive " << story_full_id << " from database";
-    delete_story_from_database(story_full_id);
-    return nullptr;
-  }
-
-  auto owner_dialog_id = story_full_id.get_dialog_id();
-  if (is_active_story(story.get())) {
-    auto active_stories = get_active_stories(owner_dialog_id);
-    if (active_stories != nullptr && !contains(active_stories->story_ids_, story_full_id.get_story_id())) {
-      LOG(INFO) << "Ignore unavailable active " << story_full_id << " from database";
-      delete_story_files(story.get());
-      delete_story_from_database(story_full_id);
-      return nullptr;
-    }
-  } else {
-    if (!can_access_expired_story(owner_dialog_id, story.get())) {
-      LOG(INFO) << "Delete expired " << story_full_id;
-      delete_story_files(story.get());
-      delete_story_from_database(story_full_id);
-      return nullptr;
-    }
-  }
-  if (is_my_story(owner_dialog_id)) {
-    story->is_outgoing_ = true;
-  }
-
-  return story;
-}
-
-StoryManager::Story *StoryManager::on_get_story_from_database(StoryFullId story_full_id, const BufferSlice &value,
-                                                              const char *source) {
-  auto old_story = get_story_editable(story_full_id);
-  if (old_story != nullptr && old_story->content_ != nullptr) {
-    return old_story;
-  }
-
-  if (value.empty()) {
-    failed_to_load_story_full_ids_.insert(story_full_id);
-    return nullptr;
-  }
-
-  auto story = parse_story(story_full_id, value);
-  if (story == nullptr) {
-    failed_to_load_story_full_ids_.insert(story_full_id);
-    return nullptr;
-  }
-
-  Dependencies dependencies;
-  add_story_dependencies(dependencies, story.get());
-  if (!dependencies.resolve_force(td_, "on_get_story_from_database")) {
-    reload_story(story_full_id, Auto(), "on_get_story_from_database");
-    failed_to_load_story_full_ids_.insert(story_full_id);
-    return nullptr;
-  }
-
-  LOG(INFO) << "Load new " << story_full_id << " from " << source;
-
-  auto result = story.get();
-  stories_.set(story_full_id, std::move(story));
-  register_story_global_id(story_full_id, result);
-
-  CHECK(!is_inaccessible_story(story_full_id));
-  CHECK(being_edited_stories_.count(story_full_id) == 0);
-
-  on_story_changed(story_full_id, result, true, false, true);
-
-  return result;
-}
-
-bool StoryManager::can_get_story_statistics(StoryFullId story_full_id) {
-  return can_get_story_statistics(story_full_id, get_story_force(story_full_id, "can_get_story_statistics"));
-}
-
-bool StoryManager::can_get_story_statistics(StoryFullId story_full_id, const Story *story) const {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-  if (story == nullptr || !story_full_id.get_story_id().is_server()) {
-    return false;
-  }
-  auto dialog_id = story_full_id.get_dialog_id();
-  return dialog_id.get_type() == DialogType::Channel &&
-         td_->chat_manager_->can_get_channel_story_statistics(dialog_id.get_channel_id());
-}
-
-const StoryManager::ActiveStories *StoryManager::get_active_stories(DialogId owner_dialog_id) const {
-  return active_stories_.get_pointer(owner_dialog_id);
-}
-
-StoryManager::ActiveStories *StoryManager::get_active_stories_editable(DialogId owner_dialog_id) {
-  return active_stories_.get_pointer(owner_dialog_id);
-}
-
-StoryManager::ActiveStories *StoryManager::get_active_stories_force(DialogId owner_dialog_id, const char *source) {
-  auto active_stories = get_active_stories_editable(owner_dialog_id);
-  if (active_stories != nullptr) {
-    return active_stories;
-  }
-
-  if (td_->auth_manager_->is_bot() || !G()->use_message_database() ||
-      failed_to_load_active_stories_.count(owner_dialog_id) > 0 || !owner_dialog_id.is_valid()) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load active stories of " << owner_dialog_id << " from database from " << source;
-  auto r_value = G()->td_db()->get_story_db_sync()->get_active_stories(owner_dialog_id);
-  if (r_value.is_error()) {
-    failed_to_load_active_stories_.insert(owner_dialog_id);
-    return nullptr;
-  }
-  return on_get_active_stories_from_database(StoryListId(), owner_dialog_id, r_value.ok(), source);
-}
-
-StoryManager::ActiveStories *StoryManager::on_get_active_stories_from_database(StoryListId story_list_id,
-                                                                               DialogId owner_dialog_id,
-                                                                               const BufferSlice &value,
-                                                                               const char *source) {
-  auto active_stories = get_active_stories_editable(owner_dialog_id);
-  if (active_stories != nullptr) {
-    return active_stories;
-  }
-
-  if (value.empty()) {
-    failed_to_load_active_stories_.insert(owner_dialog_id);
-    return nullptr;
-  }
-
-  SavedActiveStories saved_active_stories;
-  auto status = log_event_parse(saved_active_stories, value.as_slice());
-  if (status.is_error()) {
-    LOG(ERROR) << "Receive invalid active stories in " << owner_dialog_id << " from database: " << status << ' '
-               << format::as_hex_dump<4>(value.as_slice());
-    save_active_stories(owner_dialog_id, nullptr, Promise<Unit>(), "on_get_active_stories_from_database");
-    failed_to_load_active_stories_.insert(owner_dialog_id);
-    return nullptr;
-  }
-
-  vector<StoryId> story_ids;
-  for (auto &story_info : saved_active_stories.story_infos_) {
-    story_ids.push_back(on_get_story_info(owner_dialog_id, std::move(story_info)));
-  }
-
-  on_update_active_stories(owner_dialog_id, saved_active_stories.max_read_story_id_, std::move(story_ids),
-                           Promise<Unit>(), "on_get_active_stories_from_database", true);
-
-  active_stories = get_active_stories_editable(owner_dialog_id);
-  if (active_stories == nullptr) {
-    if (!story_list_id.is_valid()) {
-      story_list_id = get_dialog_story_list_id(owner_dialog_id);
-    }
-    if (story_list_id.is_valid()) {
-      auto &story_list = get_story_list(story_list_id);
-      if (!story_list.is_reloaded_server_total_count_ &&
-          story_list.server_total_count_ > static_cast<int32>(story_list.ordered_stories_.size())) {
-        story_list.server_total_count_--;
-        update_story_list_sent_total_count(story_list_id, story_list, "on_get_active_stories_from_database");
-        save_story_list(story_list_id, story_list.state_, story_list.server_total_count_, story_list.server_has_more_);
-      }
-    }
-  }
-  return active_stories;
-}
-
-void StoryManager::add_story_dependencies(Dependencies &dependencies, const Story *story) {
-  if (story->forward_info_ != nullptr) {
-    story->forward_info_->add_dependencies(dependencies);
-  }
-  story->interaction_info_.add_dependencies(dependencies);
-  dependencies.add_message_sender_dependencies(story->sender_dialog_id_);
-  story->privacy_rules_.add_dependencies(dependencies);
-  if (story->content_ != nullptr) {
-    add_story_content_dependencies(dependencies, story->content_.get());
-  }
-  add_formatted_text_dependencies(dependencies, &story->caption_);
-  for (const auto &media_area : story->areas_) {
-    media_area.add_dependencies(dependencies);
-  }
-}
-
-void StoryManager::add_pending_story_dependencies(Dependencies &dependencies, const PendingStory *pending_story) {
-  dependencies.add_dialog_and_dependencies(pending_story->dialog_id_);
-  add_story_dependencies(dependencies, pending_story->story_.get());
-}
-
-void StoryManager::load_active_stories(StoryListId story_list_id, Promise<Unit> &&promise) {
-  if (!story_list_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Story list must be non-empty"));
-  }
-  auto &story_list = get_story_list(story_list_id);
-  if (story_list.list_last_story_date_ == MAX_DIALOG_DATE) {
-    return promise.set_error(Status::Error(404, "Not found"));
-  }
-
-  if (story_list.database_has_more_) {
-    CHECK(G()->use_message_database());
-    story_list.load_list_from_database_queries_.push_back(std::move(promise));
-    if (story_list.load_list_from_database_queries_.size() == 1u) {
-      G()->td_db()->get_story_db_async()->get_active_story_list(
-          story_list_id, story_list.last_loaded_database_dialog_date_.get_order(),
-          story_list.last_loaded_database_dialog_date_.get_dialog_id(), 10,
-          PromiseCreator::lambda(
-              [actor_id = actor_id(this), story_list_id](Result<StoryDbGetActiveStoryListResult> &&result) {
-                send_closure(actor_id, &StoryManager::on_load_active_stories_from_database, story_list_id,
-                             std::move(result));
-              }));
-    }
-    return;
-  }
-
-  if (!story_list.server_has_more_) {
-    if (story_list.list_last_story_date_ != MAX_DIALOG_DATE) {
-      auto min_story_date = story_list.list_last_story_date_;
-      story_list.list_last_story_date_ = MAX_DIALOG_DATE;
-      for (auto it = story_list.ordered_stories_.upper_bound(min_story_date); it != story_list.ordered_stories_.end();
-           ++it) {
-        on_dialog_active_stories_order_updated(it->get_dialog_id(), "load_active_stories");
-      }
-      update_story_list_sent_total_count(story_list_id, story_list, "load_active_stories");
-    }
-    return promise.set_error(Status::Error(404, "Not found"));
-  }
-
-  load_active_stories_from_server(story_list_id, story_list, !story_list.state_.empty(), std::move(promise));
-}
-
-void StoryManager::on_load_active_stories_from_database(StoryListId story_list_id,
-                                                        Result<StoryDbGetActiveStoryListResult> result) {
-  G()->ignore_result_if_closing(result);
-  auto &story_list = get_story_list(story_list_id);
-  auto promises = std::move(story_list.load_list_from_database_queries_);
-  CHECK(!promises.empty());
-  if (result.is_error()) {
-    return fail_promises(promises, result.move_as_error());
-  }
-
-  auto active_story_list = result.move_as_ok();
-
-  LOG(INFO) << "Load " << active_story_list.active_stories_.size() << " chats with active stories in " << story_list_id
-            << " from database";
-
-  bool is_bad = false;
-  FlatHashSet<DialogId, DialogIdHash> owner_dialog_ids;
-  Dependencies dependencies;
-  for (auto &active_stories_it : active_story_list.active_stories_) {
-    auto owner_dialog_id = active_stories_it.first;
-    if (owner_dialog_id.is_valid()) {
-      dependencies.add_dialog_and_dependencies(owner_dialog_id);
-      owner_dialog_ids.insert(owner_dialog_id);
-    } else {
-      is_bad = true;
-    }
-  }
-  if (is_bad || !dependencies.resolve_force(td_, "on_load_active_stories_from_database")) {
-    active_story_list.active_stories_.clear();
-    story_list.state_.clear();
-    story_list.server_has_more_ = true;
-  }
-
-  if (active_story_list.active_stories_.empty()) {
-    story_list.last_loaded_database_dialog_date_ = MAX_DIALOG_DATE;
-    story_list.database_has_more_ = false;
-  } else {
-    for (auto &active_stories_it : active_story_list.active_stories_) {
-      on_get_active_stories_from_database(story_list_id, active_stories_it.first, active_stories_it.second,
-                                          "on_load_active_stories_from_database");
-    }
-    DialogDate max_story_date(active_story_list.next_order_, active_story_list.next_dialog_id_);
-    if (story_list.last_loaded_database_dialog_date_ < max_story_date) {
-      story_list.last_loaded_database_dialog_date_ = max_story_date;
-
-      if (story_list.list_last_story_date_ < max_story_date) {
-        auto min_story_date = story_list.list_last_story_date_;
-        story_list.list_last_story_date_ = max_story_date;
-        for (auto it = story_list.ordered_stories_.upper_bound(min_story_date);
-             it != story_list.ordered_stories_.end() && *it <= max_story_date; ++it) {
-          auto dialog_id = it->get_dialog_id();
-          owner_dialog_ids.erase(dialog_id);
-          on_dialog_active_stories_order_updated(dialog_id, "on_load_active_stories_from_database 1");
-        }
-        for (auto owner_dialog_id : owner_dialog_ids) {
-          on_dialog_active_stories_order_updated(owner_dialog_id, "on_load_active_stories_from_database 2");
-        }
-      }
-    } else {
-      LOG(ERROR) << "Last database story date didn't increase";
-    }
-    update_story_list_sent_total_count(story_list_id, story_list, "on_load_active_stories_from_database");
-  }
-
-  set_promises(promises);
-}
-
-void StoryManager::load_active_stories_from_server(StoryListId story_list_id, StoryList &story_list, bool is_next,
-                                                   Promise<Unit> &&promise) {
-  story_list.load_list_from_server_queries_.push_back(std::move(promise));
-  if (story_list.load_list_from_server_queries_.size() == 1u) {
-    auto query_promise =
-        PromiseCreator::lambda([actor_id = actor_id(this), story_list_id, is_next, state = story_list.state_](
-                                   Result<telegram_api::object_ptr<telegram_api::stories_AllStories>> r_all_stories) {
-          send_closure(actor_id, &StoryManager::on_load_active_stories_from_server, story_list_id, is_next, state,
-                       std::move(r_all_stories));
-        });
-    td_->create_handler<GetAllStoriesQuery>(std::move(query_promise))->send(story_list_id, is_next, story_list.state_);
-  }
-}
-
-void StoryManager::reload_active_stories() {
-  for (auto story_list_id : {StoryListId::main(), StoryListId::archive()}) {
-    load_active_stories_from_server(story_list_id, get_story_list(story_list_id), false, Promise<Unit>());
-  }
-}
-
-void StoryManager::on_load_active_stories_from_server(
-    StoryListId story_list_id, bool is_next, string old_state,
-    Result<telegram_api::object_ptr<telegram_api::stories_AllStories>> r_all_stories) {
-  G()->ignore_result_if_closing(r_all_stories);
-  auto &story_list = get_story_list(story_list_id);
-  auto promises = std::move(story_list.load_list_from_server_queries_);
-  CHECK(!promises.empty());
-  if (r_all_stories.is_error()) {
-    return fail_promises(promises, r_all_stories.move_as_error());
-  }
-  auto all_stories = r_all_stories.move_as_ok();
-  switch (all_stories->get_id()) {
-    case telegram_api::stories_allStoriesNotModified::ID: {
-      auto stories = telegram_api::move_object_as<telegram_api::stories_allStoriesNotModified>(all_stories);
-      if (stories->state_.empty()) {
-        LOG(ERROR) << "Receive empty state in " << to_string(stories);
-      } else {
-        story_list.state_ = std::move(stories->state_);
-        save_story_list(story_list_id, story_list.state_, story_list.server_total_count_, story_list.server_has_more_);
-      }
-      on_update_story_stealth_mode(std::move(stories->stealth_mode_));
-      break;
-    }
-    case telegram_api::stories_allStories::ID: {
-      auto stories = telegram_api::move_object_as<telegram_api::stories_allStories>(all_stories);
-      td_->user_manager_->on_get_users(std::move(stories->users_), "on_load_active_stories_from_server");
-      td_->chat_manager_->on_get_chats(std::move(stories->chats_), "on_load_active_stories_from_server");
-      if (stories->state_.empty()) {
-        LOG(ERROR) << "Receive empty state in " << to_string(stories);
-      } else {
-        story_list.state_ = std::move(stories->state_);
-      }
-      story_list.server_total_count_ = max(stories->count_, 0);
-      story_list.is_reloaded_server_total_count_ = true;
-      if (!stories->has_more_ || stories->peer_stories_.empty()) {
-        story_list.server_has_more_ = false;
-      }
-
-      MultiPromiseActorSafe mpas{"SaveActiveStoryMultiPromiseActor"};
-      mpas.add_promise(PromiseCreator::lambda([actor_id = actor_id(this), story_list_id, state = story_list.state_,
-                                               server_total_count = story_list.server_total_count_,
-                                               has_more = story_list.server_has_more_](Result<Unit> &&result) mutable {
-        if (result.is_ok()) {
-          send_closure(actor_id, &StoryManager::save_story_list, story_list_id, std::move(state), server_total_count,
-                       has_more);
-        }
-      }));
-      auto lock = mpas.get_promise();
-
-      if (stories->peer_stories_.empty() && stories->has_more_) {
-        LOG(ERROR) << "Receive no stories, but expected more";
-        stories->has_more_ = false;
-      }
-
-      auto max_story_date = MIN_DIALOG_DATE;
-      vector<DialogId> owner_dialog_ids;
-      for (auto &peer_stories : stories->peer_stories_) {
-        auto owner_dialog_id = on_get_dialog_stories(DialogId(), std::move(peer_stories), mpas.get_promise());
-        auto active_stories = get_active_stories(owner_dialog_id);
-        if (active_stories == nullptr) {
-          LOG(ERROR) << "Receive invalid stories";
-        } else {
-          DialogDate story_date(active_stories->private_order_, owner_dialog_id);
-          if (max_story_date < story_date) {
-            max_story_date = story_date;
-          } else {
-            LOG(ERROR) << "Receive " << story_date << " after " << max_story_date << " for "
-                       << (is_next ? "next" : "first") << " request with state \"" << old_state << "\" in "
-                       << story_list_id << " of " << td_->user_manager_->get_my_id();
-          }
-          owner_dialog_ids.push_back(owner_dialog_id);
-        }
-      }
-      if (!stories->has_more_) {
-        max_story_date = MAX_DIALOG_DATE;
-      }
-
-      vector<DialogId> delete_dialog_ids;
-      auto min_story_date = is_next ? story_list.list_last_story_date_ : MIN_DIALOG_DATE;
-      for (auto it = story_list.ordered_stories_.upper_bound(min_story_date);
-           it != story_list.ordered_stories_.end() && *it <= max_story_date; ++it) {
-        auto dialog_id = it->get_dialog_id();
-        if (!td::contains(owner_dialog_ids, dialog_id)) {
-          delete_dialog_ids.push_back(dialog_id);
-        }
-      }
-      if (story_list.list_last_story_date_ < max_story_date) {
-        story_list.list_last_story_date_ = max_story_date;
-        for (auto owner_dialog_id : owner_dialog_ids) {
-          on_dialog_active_stories_order_updated(owner_dialog_id, "on_load_active_stories_from_server");
-        }
-      } else if (is_next) {
-        LOG(ERROR) << "Last story date didn't increase";
-      }
-      if (!delete_dialog_ids.empty()) {
-        LOG(INFO) << "Delete active stories in " << delete_dialog_ids;
-      }
-      for (auto dialog_id : delete_dialog_ids) {
-        on_update_active_stories(dialog_id, StoryId(), vector<StoryId>(), mpas.get_promise(),
-                                 "on_load_active_stories_from_server");
-        load_dialog_expiring_stories(dialog_id, 0, "on_load_active_stories_from_server 1");
-      }
-      update_story_list_sent_total_count(story_list_id, story_list, "on_load_active_stories_from_server");
-
-      lock.set_value(Unit());
-
-      on_update_story_stealth_mode(std::move(stories->stealth_mode_));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  set_promises(promises);
-}
-
-void StoryManager::save_story_list(StoryListId story_list_id, string state, int32 total_count, bool has_more) {
-  if (G()->close_flag() || !G()->use_message_database()) {
-    return;
-  }
-
-  SavedStoryList saved_story_list;
-  saved_story_list.state_ = std::move(state);
-  saved_story_list.total_count_ = total_count;
-  saved_story_list.has_more_ = has_more;
-  G()->td_db()->get_story_db_async()->add_active_story_list_state(story_list_id, log_event_store(saved_story_list),
-                                                                  Promise<Unit>());
-}
-
-StoryManager::StoryList &StoryManager::get_story_list(StoryListId story_list_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(story_list_id.is_valid());
-  return story_lists_[story_list_id == StoryListId::archive()];
-}
-
-const StoryManager::StoryList &StoryManager::get_story_list(StoryListId story_list_id) const {
-  CHECK(!td_->auth_manager_->is_bot());
-  CHECK(story_list_id.is_valid());
-  return story_lists_[story_list_id == StoryListId::archive()];
-}
-
-td_api::object_ptr<td_api::updateStoryListChatCount> StoryManager::get_update_story_list_chat_count_object(
-    StoryListId story_list_id, const StoryList &story_list) const {
-  CHECK(story_list_id.is_valid());
-  return td_api::make_object<td_api::updateStoryListChatCount>(story_list_id.get_story_list_object(),
-                                                               story_list.sent_total_count_);
-}
-
-void StoryManager::update_story_list_sent_total_count(StoryListId story_list_id, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  update_story_list_sent_total_count(story_list_id, get_story_list(story_list_id), source);
-}
-
-void StoryManager::update_story_list_sent_total_count(StoryListId story_list_id, StoryList &story_list,
-                                                      const char *source) {
-  if (story_list.server_total_count_ == -1 || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  LOG(INFO) << "Update story list sent total chat count in " << story_list_id << " from " << source;
-  auto new_total_count = static_cast<int32>(story_list.ordered_stories_.size());
-  auto yet_unsent_total_count = 0;
-  for (const auto &it : yet_unsent_story_ids_) {
-    if (active_stories_.count(it.first) == 0) {
-      yet_unsent_total_count++;
-    }
-  }
-  new_total_count += yet_unsent_total_count;
-  if (story_list.list_last_story_date_ != MAX_DIALOG_DATE) {
-    new_total_count = max(new_total_count, story_list.server_total_count_ + yet_unsent_total_count);
-  } else if (story_list.server_total_count_ != new_total_count) {
-    story_list.server_total_count_ = new_total_count;
-    save_story_list(story_list_id, story_list.state_, story_list.server_total_count_, story_list.server_has_more_);
-  }
-  if (story_list.sent_total_count_ != new_total_count) {
-    story_list.sent_total_count_ = new_total_count;
-    send_closure(G()->td(), &Td::send_update, get_update_story_list_chat_count_object(story_list_id, story_list));
-  }
-}
-
-void StoryManager::reload_all_read_stories() {
-  td_->create_handler<GetAllReadPeerStoriesQuery>()->send();
-}
-
-void StoryManager::try_synchronize_archive_all_stories() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (has_active_synchronize_archive_all_stories_query_) {
-    return;
-  }
-  if (!td_->option_manager_->get_option_boolean("need_synchronize_archive_all_stories")) {
-    return;
-  }
-
-  has_active_synchronize_archive_all_stories_query_ = true;
-  auto archive_all_stories = td_->option_manager_->get_option_boolean("archive_all_stories");
-
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), archive_all_stories](Result<Unit> result) {
-    send_closure(actor_id, &StoryManager::on_synchronized_archive_all_stories, archive_all_stories, std::move(result));
-  });
-  td_->create_handler<ToggleAllStoriesHiddenQuery>(std::move(promise))->send(archive_all_stories);
-}
-
-void StoryManager::on_synchronized_archive_all_stories(bool set_archive_all_stories, Result<Unit> result) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(has_active_synchronize_archive_all_stories_query_);
-  has_active_synchronize_archive_all_stories_query_ = false;
-
-  auto archive_all_stories = td_->option_manager_->get_option_boolean("archive_all_stories");
-  if (archive_all_stories != set_archive_all_stories) {
-    return try_synchronize_archive_all_stories();
-  }
-  td_->option_manager_->set_option_empty("need_synchronize_archive_all_stories");
-
-  if (result.is_error()) {
-    send_closure(G()->config_manager(), &ConfigManager::reget_app_config, Promise<Unit>());
-  }
-}
-
-void StoryManager::toggle_dialog_stories_hidden(DialogId dialog_id, StoryListId story_list_id,
-                                                Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                        "toggle_dialog_stories_hidden"));
-  if (story_list_id == get_dialog_story_list_id(dialog_id)) {
-    return promise.set_value(Unit());
-  }
-  if (!story_list_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Story list must be non-empty"));
-  }
-
-  td_->create_handler<ToggleStoriesHiddenQuery>(std::move(promise))
-      ->send(dialog_id, story_list_id == StoryListId::archive());
-}
-
-void StoryManager::get_dialog_pinned_stories(DialogId owner_dialog_id, StoryId from_story_id, int32 limit,
-                                             Promise<td_api::object_ptr<td_api::stories>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(owner_dialog_id, false, AccessRights::Read,
-                                                                        "get_dialog_pinned_stories"));
-
-  if (from_story_id != StoryId() && !from_story_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Invalid value of parameter from_story_id specified"));
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), owner_dialog_id, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::stories_stories>> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &StoryManager::on_get_dialog_pinned_stories, owner_dialog_id, result.move_as_ok(),
-                     std::move(promise));
-      });
-  td_->create_handler<GetPinnedStoriesQuery>(std::move(query_promise))->send(owner_dialog_id, from_story_id, limit);
-}
-
-void StoryManager::on_get_dialog_pinned_stories(DialogId owner_dialog_id,
-                                                telegram_api::object_ptr<telegram_api::stories_stories> &&stories,
-                                                Promise<td_api::object_ptr<td_api::stories>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  auto pinned_story_ids = StoryId::get_story_ids(stories->pinned_to_top_);
-  auto result = on_get_stories(owner_dialog_id, {}, std::move(stories));
-  on_update_dialog_has_pinned_stories(owner_dialog_id, result.first > 0);
-  promise.set_value(get_stories_object(
-      result.first,
-      transform(result.second, [owner_dialog_id](StoryId story_id) { return StoryFullId(owner_dialog_id, story_id); }),
-      pinned_story_ids));
-}
-
-void StoryManager::get_story_archive(DialogId owner_dialog_id, StoryId from_story_id, int32 limit,
-                                     Promise<td_api::object_ptr<td_api::stories>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (from_story_id != StoryId() && !from_story_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Invalid value of parameter from_story_id specified"));
-  }
-  if (!td_->dialog_manager_->have_dialog_force(owner_dialog_id, "get_story_archive")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (!can_edit_stories(owner_dialog_id)) {
-    return promise.set_error(Status::Error(400, "Can't get story archive in the chat"));
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), owner_dialog_id, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::stories_stories>> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &StoryManager::on_get_story_archive, owner_dialog_id, result.move_as_ok(),
-                     std::move(promise));
-      });
-  td_->create_handler<GetStoriesArchiveQuery>(std::move(query_promise))->send(owner_dialog_id, from_story_id, limit);
-}
-
-void StoryManager::on_get_story_archive(DialogId owner_dialog_id,
-                                        telegram_api::object_ptr<telegram_api::stories_stories> &&stories,
-                                        Promise<td_api::object_ptr<td_api::stories>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  LOG_IF(ERROR, !stories->pinned_to_top_.empty()) << "Receive pinned stories in archive";
-  auto result = on_get_stories(owner_dialog_id, {}, std::move(stories));
-  promise.set_value(get_stories_object(
-      result.first,
-      transform(result.second, [owner_dialog_id](StoryId story_id) { return StoryFullId(owner_dialog_id, story_id); }),
-      {}));
-}
-
-void StoryManager::get_dialog_expiring_stories(DialogId owner_dialog_id,
-                                               Promise<td_api::object_ptr<td_api::chatActiveStories>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(owner_dialog_id, false, AccessRights::Read,
-                                                                        "get_dialog_expiring_stories"));
-
-  LOG(INFO) << "Get active stories in " << owner_dialog_id;
-  auto active_stories = get_active_stories_force(owner_dialog_id, "get_dialog_expiring_stories");
-  if (active_stories != nullptr) {
-    if (!promise) {
-      return promise.set_value(nullptr);
-    }
-    if (updated_active_stories_.insert(owner_dialog_id)) {
-      send_update_chat_active_stories(owner_dialog_id, active_stories, "get_dialog_expiring_stories 2");
-    }
-    promise.set_value(get_chat_active_stories_object(owner_dialog_id, active_stories));
-    promise = {};
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), owner_dialog_id, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::stories_peerStories>> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &StoryManager::on_get_dialog_expiring_stories, owner_dialog_id, result.move_as_ok(),
-                     std::move(promise));
-      });
-  td_->create_handler<GetPeerStoriesQuery>(std::move(query_promise))->send(owner_dialog_id);
-}
-
-void StoryManager::reload_dialog_expiring_stories(DialogId dialog_id) {
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    return;
-  }
-  td_->dialog_manager_->force_create_dialog(dialog_id, "reload_dialog_expiring_stories");
-  load_dialog_expiring_stories(dialog_id, 0, "reload_dialog_expiring_stories");
-}
-
-class StoryManager::LoadDialogExpiringStoriesLogEvent {
- public:
-  DialogId dialog_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-  }
-};
-
-uint64 StoryManager::save_load_dialog_expiring_stories_log_event(DialogId owner_dialog_id) {
-  LoadDialogExpiringStoriesLogEvent log_event{owner_dialog_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::LoadDialogExpiringStories,
-                    get_log_event_storer(log_event));
-}
-
-void StoryManager::load_dialog_expiring_stories(DialogId owner_dialog_id, uint64 log_event_id, const char *source) {
-  if (load_expiring_stories_log_event_ids_.count(owner_dialog_id) > 0) {
-    if (log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    }
-    return;
-  }
-  LOG(INFO) << "Load active stories in " << owner_dialog_id << " from " << source;
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_load_dialog_expiring_stories_log_event(owner_dialog_id);
-  }
-  load_expiring_stories_log_event_ids_[owner_dialog_id] = log_event_id;
-
-  // send later to ensure that active stories are inited before sending the request
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), owner_dialog_id](Result<td_api::object_ptr<td_api::chatActiveStories>> &&) {
-        if (!G()->close_flag()) {
-          send_closure(actor_id, &StoryManager::on_load_dialog_expiring_stories, owner_dialog_id);
-        }
-      });
-  send_closure_later(actor_id(this), &StoryManager::get_dialog_expiring_stories, owner_dialog_id, std::move(promise));
-}
-
-void StoryManager::on_load_dialog_expiring_stories(DialogId owner_dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  auto it = load_expiring_stories_log_event_ids_.find(owner_dialog_id);
-  if (it == load_expiring_stories_log_event_ids_.end()) {
-    return;
-  }
-  auto log_event_id = it->second;
-  load_expiring_stories_log_event_ids_.erase(it);
-  if (log_event_id != 0) {
-    binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-  }
-  LOG(INFO) << "Finished loading of active stories in " << owner_dialog_id;
-}
-
-void StoryManager::on_get_dialog_expiring_stories(DialogId owner_dialog_id,
-                                                  telegram_api::object_ptr<telegram_api::stories_peerStories> &&stories,
-                                                  Promise<td_api::object_ptr<td_api::chatActiveStories>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  td_->user_manager_->on_get_users(std::move(stories->users_), "on_get_dialog_expiring_stories");
-  td_->chat_manager_->on_get_chats(std::move(stories->chats_), "on_get_dialog_expiring_stories");
-  owner_dialog_id = on_get_dialog_stories(owner_dialog_id, std::move(stories->stories_), Promise<Unit>());
-  if (promise) {
-    CHECK(owner_dialog_id.is_valid());
-    auto active_stories = get_active_stories(owner_dialog_id);
-    if (updated_active_stories_.insert(owner_dialog_id)) {
-      send_update_chat_active_stories(owner_dialog_id, active_stories, "on_get_dialog_expiring_stories");
-    }
-    promise.set_value(get_chat_active_stories_object(owner_dialog_id, active_stories));
-  } else {
-    promise.set_value(nullptr);
-  }
-}
-
-void StoryManager::search_hashtag_posts(DialogId dialog_id, string hashtag, string offset, int32 limit,
-                                        Promise<td_api::object_ptr<td_api::foundStories>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_STORIES) {
-    limit = MAX_SEARCH_STORIES;
-  }
-  if (dialog_id != DialogId()) {
-    TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                          "search_hashtag_posts"));
-  }
-
-  bool is_cashtag = false;
-  if (hashtag[0] == '#' || hashtag[0] == '$') {
-    is_cashtag = (hashtag[0] == '$');
-    hashtag = hashtag.substr(1);
-  }
-  if (hashtag.empty()) {
-    return promise.set_value(td_api::make_object<td_api::foundStories>());
-  }
-  send_closure(is_cashtag ? td_->cashtag_search_hints_ : td_->hashtag_search_hints_, &HashtagHints::hashtag_used,
-               hashtag);
-
-  td_->create_handler<SearchStoriesQuery>(std::move(promise))
-      ->send(dialog_id, PSTRING() << (is_cashtag ? '$' : '#') << hashtag, offset, limit);
-}
-
-void StoryManager::search_location_posts(td_api::object_ptr<td_api::locationAddress> &&address, string offset,
-                                         int32 limit, Promise<td_api::object_ptr<td_api::foundStories>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_STORIES) {
-    limit = MAX_SEARCH_STORIES;
-  }
-
-  td_->create_handler<SearchStoriesQuery>(std::move(promise))->send(std::move(address), offset, limit);
-}
-
-void StoryManager::search_venue_posts(string venue_provider, string venue_id, string offset, int32 limit,
-                                      Promise<td_api::object_ptr<td_api::foundStories>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_SEARCH_STORIES) {
-    limit = MAX_SEARCH_STORIES;
-  }
-
-  td_->create_handler<SearchStoriesQuery>(std::move(promise))->send(venue_provider, venue_id, offset, limit);
-}
-
-void StoryManager::set_pinned_stories(DialogId owner_dialog_id, vector<StoryId> story_ids, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(owner_dialog_id, false, AccessRights::Write,
-                                                                        "set_pinned_stories"));
-  if (!can_edit_stories(owner_dialog_id)) {
-    return promise.set_error(Status::Error(400, "Can't change pinned stories in the chat"));
-  }
-  for (const auto &story_id : story_ids) {
-    StoryFullId story_full_id{owner_dialog_id, story_id};
-    const Story *story = get_story(story_full_id);
-    if (story == nullptr) {
-      return promise.set_error(Status::Error(400, "Story not found"));
-    }
-    if (!story->is_pinned_) {
-      return promise.set_error(Status::Error(400, "The story must be posted to the chat page first"));
-    }
-    if (!story_id.is_server()) {
-      return promise.set_error(Status::Error(400, "Story must be sent first"));
-    }
-  }
-  td_->create_handler<TogglePinnedStoriesToTopQuery>(std::move(promise))->send(owner_dialog_id, std::move(story_ids));
-}
-
-void StoryManager::open_story(DialogId owner_dialog_id, StoryId story_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(owner_dialog_id, false, AccessRights::Read, "open_story"));
-  if (!story_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid story identifier specified"));
-  }
-
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr) {
-    return promise.set_value(Unit());
-  }
-
-  if (can_get_story_view_count(owner_dialog_id) && story_id.is_server()) {
-    if (opened_stories_with_view_count_.empty()) {
-      schedule_interaction_info_update();
-    }
-    auto &open_count = opened_stories_with_view_count_[story_full_id];
-    if (++open_count == 1) {
-      td_->create_handler<GetStoriesViewsQuery>()->send(owner_dialog_id, {story_id});
-    }
-  }
-
-  if (story->content_ == nullptr) {
-    return promise.set_value(Unit());
-  }
-
-  if (story_id.is_server()) {
-    auto &open_count = opened_stories_[story_full_id];
-    if (++open_count == 1) {
-      CHECK(story->global_id_ > 0);
-      story_reload_timeout_.set_timeout_in(story->global_id_,
-                                           story->receive_date_ + OPENED_STORY_POLL_PERIOD - G()->unix_time());
-    }
-  }
-
-  for (auto file_id : get_story_file_ids(story)) {
-    td_->file_manager_->check_local_location_async(file_id, true);
-  }
-
-  bool is_active = is_active_story(story);
-  bool need_increment_story_views = story_id.is_server() && !is_active && story->is_pinned_;
-  bool need_read_story = story_id.is_server() && is_active;
-
-  if (need_increment_story_views) {
-    auto &story_views = pending_story_views_[owner_dialog_id];
-    story_views.story_ids_.insert(story_id);
-    if (!story_views.has_query_) {
-      increment_story_views(owner_dialog_id, story_views);
-    }
-  }
-
-  if (need_read_story && on_update_read_stories(owner_dialog_id, story_id)) {
-    read_stories_on_server(owner_dialog_id, story_id, 0);
-  }
-
-  promise.set_value(Unit());
-}
-
-void StoryManager::close_story(DialogId owner_dialog_id, StoryId story_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(owner_dialog_id, false, AccessRights::Read, "close_story"));
-  if (!story_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid story identifier specified"));
-  }
-
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  if (can_get_story_view_count(owner_dialog_id) && story_id.is_server()) {
-    auto &open_count = opened_stories_with_view_count_[story_full_id];
-    if (open_count == 0) {
-      return promise.set_error(Status::Error(400, "The story wasn't opened"));
-    }
-    if (--open_count == 0) {
-      opened_stories_with_view_count_.erase(story_full_id);
-      if (opened_stories_with_view_count_.empty()) {
-        interaction_info_update_timeout_.cancel_timeout();
-      }
-    }
-  }
-
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr) {
-    return promise.set_value(Unit());
-  }
-
-  if (story_id.is_server()) {
-    auto &open_count = opened_stories_[story_full_id];
-    if (open_count > 0 && --open_count == 0) {
-      opened_stories_.erase(story_full_id);
-      story_reload_timeout_.cancel_timeout(story->global_id_);
-    }
-  }
-
-  promise.set_value(Unit());
-}
-
-void StoryManager::view_story_message(StoryFullId story_full_id) {
-  if (!story_full_id.get_story_id().is_server()) {
-    return;
-  }
-
-  const Story *story = get_story_force(story_full_id, "view_story_message");
-  if (story == nullptr || story->receive_date_ < G()->unix_time() - VIEWED_STORY_POLL_PERIOD) {
-    reload_story(story_full_id, Promise<Unit>(), "view_story_message");
-  }
-}
-
-void StoryManager::on_story_replied(StoryFullId story_full_id, UserId replier_user_id) {
-  if (!replier_user_id.is_valid() || replier_user_id == td_->user_manager_->get_my_id() ||
-      !story_full_id.get_story_id().is_server()) {
-    return;
-  }
-  const Story *story = get_story_force(story_full_id, "on_story_replied");
-  if (story == nullptr || !is_my_story(story_full_id.get_dialog_id())) {
-    return;
-  }
-
-  if (story->content_ != nullptr && G()->unix_time() < get_story_viewers_expire_date(story) &&
-      story->interaction_info_.definitely_has_no_user(replier_user_id)) {
-    td_->create_handler<GetStoriesViewsQuery>()->send(story_full_id.get_dialog_id(), {story_full_id.get_story_id()});
-  }
-}
-
-bool StoryManager::has_suggested_reaction(const Story *story, const ReactionType &reaction_type) {
-  if (reaction_type.is_empty() || reaction_type.is_paid_reaction()) {
-    return false;
-  }
-  CHECK(story != nullptr);
-  return any_of(story->areas_, [&reaction_type](const auto &area) { return area.has_reaction_type(reaction_type); });
-}
-
-bool StoryManager::can_use_story_reaction(const Story *story, const ReactionType &reaction_type) const {
-  if (reaction_type.is_empty()) {
-    return true;
-  }
-  if (reaction_type.is_custom_reaction()) {
-    if (td_->option_manager_->get_option_boolean("is_premium")) {
-      return true;
-    }
-    if (has_suggested_reaction(story, reaction_type)) {
-      return true;
-    }
-    return false;
-  }
-  if (reaction_type.is_paid_reaction()) {
-    return false;
-  }
-  return td_->reaction_manager_->is_active_reaction(reaction_type);
-}
-
-void StoryManager::on_story_chosen_reaction_changed(StoryFullId story_full_id, Story *story,
-                                                    const ReactionType &reaction_type) {
-  if (story == nullptr || story->chosen_reaction_type_ == reaction_type) {
-    return;
-  }
-
-  if (story_full_id.get_dialog_id().get_type() != DialogType::User) {
-    bool need_add = has_suggested_reaction(story, reaction_type);
-    bool need_remove = has_suggested_reaction(story, story->chosen_reaction_type_);
-    if (need_add || need_remove) {
-      story->interaction_info_.set_chosen_reaction_type(need_add ? reaction_type : ReactionType(),
-                                                        story->chosen_reaction_type_);
-    }
-  }
-  story->chosen_reaction_type_ = reaction_type;
-  on_story_changed(story_full_id, story, true, true);
-}
-
-void StoryManager::set_story_reaction(StoryFullId story_full_id, ReactionType reaction_type, bool add_to_recent,
-                                      Promise<Unit> &&promise) {
-  auto owner_dialog_id = story_full_id.get_dialog_id();
-  TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(owner_dialog_id, false, AccessRights::Read,
-                                                                        "set_story_reaction"));
-  if (!story_full_id.get_story_id().is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid story identifier specified"));
-  }
-  if (!story_full_id.get_story_id().is_server()) {
-    return promise.set_error(Status::Error(400, "Can't react to the story"));
-  }
-
-  Story *story = get_story_force(story_full_id, "set_story_reaction");
-  if (story == nullptr) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-
-  if (!can_use_story_reaction(story, reaction_type)) {
-    return promise.set_error(Status::Error(400, "The reaction isn't available for the story"));
-  }
-
-  if (story->chosen_reaction_type_ == reaction_type) {
-    return promise.set_value(Unit());
-  }
-
-  if (add_to_recent) {
-    td_->reaction_manager_->add_recent_reaction(reaction_type);
-  }
-
-  on_story_chosen_reaction_changed(story_full_id, story, reaction_type);
-
-  being_set_story_reactions_[story_full_id] += 2;
-
-  // TODO cancel previous queries, log event
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), story_full_id,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    send_closure(actor_id, &StoryManager::on_set_story_reaction, story_full_id, std::move(result), std::move(promise));
-  });
-
-  td_->create_handler<SendStoryReactionQuery>(std::move(query_promise))
-      ->send(story_full_id, reaction_type, add_to_recent);
-}
-
-void StoryManager::on_set_story_reaction(StoryFullId story_full_id, Result<Unit> &&result, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto need_reload_story = result.is_error();
-
-  auto it = being_set_story_reactions_.find(story_full_id);
-  CHECK(it != being_set_story_reactions_.end());
-  it->second -= 2;
-  if (it->second <= 1) {
-    if (it->second == 1) {
-      need_reload_story = true;
-    }
-    being_set_story_reactions_.erase(it);
-  }
-
-  if (!have_story_force(story_full_id)) {
-    return promise.set_value(Unit());
-  }
-
-  if (need_reload_story) {
-    reload_story(story_full_id, Promise<Unit>(), "on_set_story_reaction");
-  }
-
-  promise.set_result(std::move(result));
-}
-
-void StoryManager::schedule_interaction_info_update() {
-  if (interaction_info_update_timeout_.has_timeout()) {
-    return;
-  }
-
-  interaction_info_update_timeout_.set_callback(std::move(update_interaction_info_static));
-  interaction_info_update_timeout_.set_callback_data(static_cast<void *>(this));
-  interaction_info_update_timeout_.set_timeout_in(10.0);
-}
-
-void StoryManager::update_interaction_info_static(void *story_manager) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(story_manager != nullptr);
-  static_cast<StoryManager *>(story_manager)->update_interaction_info();
-}
-
-void StoryManager::update_interaction_info() {
-  if (opened_stories_with_view_count_.empty()) {
-    return;
-  }
-  FlatHashMap<DialogId, vector<StoryId>, DialogIdHash> split_story_ids;
-  for (auto &it : opened_stories_with_view_count_) {
-    auto story_full_id = it.first;
-    auto &story_ids = split_story_ids[story_full_id.get_dialog_id()];
-    if (story_ids.size() < 100) {
-      auto story_id = story_full_id.get_story_id();
-      CHECK(story_id.is_server());
-      story_ids.push_back(story_id);
-    }
-  }
-  for (auto &story_ids : split_story_ids) {
-    td_->create_handler<GetStoriesViewsQuery>()->send(story_ids.first, std::move(story_ids.second));
-  }
-}
-
-void StoryManager::increment_story_views(DialogId owner_dialog_id, PendingStoryViews &story_views) {
-  CHECK(!story_views.has_query_);
-  vector<StoryId> viewed_story_ids;
-  const size_t MAX_VIEWED_STORIES = 200;  // server-side limit
-  while (!story_views.story_ids_.empty() && viewed_story_ids.size() < MAX_VIEWED_STORIES) {
-    auto story_id_it = story_views.story_ids_.begin();
-    auto story_id = *story_id_it;
-    story_views.story_ids_.erase(story_id_it);
-    CHECK(story_id.is_server());
-    viewed_story_ids.push_back(story_id);
-  }
-  CHECK(!viewed_story_ids.empty());
-  story_views.has_query_ = true;
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), owner_dialog_id](Result<Unit>) {
-    send_closure(actor_id, &StoryManager::on_increment_story_views, owner_dialog_id);
-  });
-  td_->create_handler<IncrementStoryViewsQuery>(std::move(promise))->send(owner_dialog_id, std::move(viewed_story_ids));
-}
-
-void StoryManager::on_increment_story_views(DialogId owner_dialog_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto &story_views = pending_story_views_[owner_dialog_id];
-  CHECK(story_views.has_query_);
-  story_views.has_query_ = false;
-  if (story_views.story_ids_.empty()) {
-    pending_story_views_.erase(owner_dialog_id);
-    return;
-  }
-  increment_story_views(owner_dialog_id, story_views);
-}
-
-class StoryManager::ReadStoriesOnServerLogEvent {
- public:
-  DialogId dialog_id_;
-  StoryId max_story_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(dialog_id_, storer);
-    td::store(max_story_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(dialog_id_, parser);
-    td::parse(max_story_id_, parser);
-  }
-};
-
-uint64 StoryManager::save_read_stories_on_server_log_event(DialogId dialog_id, StoryId max_story_id) {
-  ReadStoriesOnServerLogEvent log_event{dialog_id, max_story_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::ReadStoriesOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void StoryManager::read_stories_on_server(DialogId owner_dialog_id, StoryId story_id, uint64 log_event_id) {
-  CHECK(story_id.is_server());
-  if (log_event_id == 0 && G()->use_message_database()) {
-    log_event_id = save_read_stories_on_server_log_event(owner_dialog_id, story_id);
-  }
-
-  td_->create_handler<ReadStoriesQuery>(get_erase_log_event_promise(log_event_id))->send(owner_dialog_id, story_id);
-}
-
-Status StoryManager::can_get_story_viewers(StoryFullId story_full_id, const Story *story, int32 unix_time) const {
-  CHECK(story != nullptr);
-  if (!is_my_story(story_full_id.get_dialog_id())) {
-    return Status::Error(400, "Story must be outgoing");
-  }
-  if (!story_full_id.get_story_id().is_server()) {
-    return Status::Error(400, "Story is not sent yet");
-  }
-  if (story->interaction_info_.get_reaction_count() > 0) {
-    return Status::OK();
-  }
-  if (story->interaction_info_.has_hidden_viewers() && unix_time >= get_story_viewers_expire_date(story)) {
-    return Status::Error(400, "Story is too old");
-  }
-  return Status::OK();
-}
-
-bool StoryManager::has_unexpired_viewers(StoryFullId story_full_id, const Story *story) const {
-  CHECK(story != nullptr);
-  return is_my_story(story_full_id.get_dialog_id()) && story_full_id.get_story_id().is_server() &&
-         G()->unix_time() < get_story_viewers_expire_date(story);
-}
-
-void StoryManager::get_channel_differences_if_needed(
-    telegram_api::object_ptr<telegram_api::stories_storyViewsList> &&story_views,
-    Promise<telegram_api::object_ptr<telegram_api::stories_storyViewsList>> promise) {
-  td_->user_manager_->on_get_users(std::move(story_views->users_), "stories_storyViewsList");
-  td_->chat_manager_->on_get_chats(std::move(story_views->chats_), "stories_storyViewsList");
-
-  vector<const telegram_api::object_ptr<telegram_api::Message> *> messages;
-  for (const auto &view : story_views->views_) {
-    CHECK(view != nullptr);
-    if (view->get_id() != telegram_api::storyViewPublicForward::ID) {
-      continue;
-    }
-    messages.push_back(&static_cast<const telegram_api::storyViewPublicForward *>(view.get())->message_);
-  }
-  td_->messages_manager_->get_channel_differences_if_needed(
-      messages,
-      PromiseCreator::lambda([actor_id = actor_id(this), story_views = std::move(story_views),
-                              promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(std::move(story_views));
-        }
-      }),
-      "stories_storyViewsList");
-}
-
-void StoryManager::get_story_interactions(StoryId story_id, const string &query, bool only_contacts,
-                                          bool prefer_forwards, bool prefer_with_reaction, const string &offset,
-                                          int32 limit,
-                                          Promise<td_api::object_ptr<td_api::storyInteractions>> &&promise) {
-  auto owner_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (!story_id.is_server()) {
-    return promise.set_value(td_api::make_object<td_api::storyInteractions>());
-  }
-
-  bool is_full = query.empty() && !only_contacts;
-  bool is_first = is_full && offset.empty();
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), story_id, is_full, is_first, promise = std::move(promise)](
-          Result<telegram_api::object_ptr<telegram_api::stories_storyViewsList>> result) mutable {
-        send_closure(actor_id, &StoryManager::on_get_story_interactions, story_id, is_full, is_first, std::move(result),
-                     std::move(promise));
-      });
-
-  td_->create_handler<GetStoryViewsListQuery>(std::move(query_promise))
-      ->send(owner_dialog_id, story_id, query, only_contacts, prefer_forwards, prefer_with_reaction, offset, limit);
-}
-
-void StoryManager::on_get_story_interactions(
-    StoryId story_id, bool is_full, bool is_first,
-    Result<telegram_api::object_ptr<telegram_api::stories_storyViewsList>> r_view_list,
-    Promise<td_api::object_ptr<td_api::storyInteractions>> &&promise) {
-  G()->ignore_result_if_closing(r_view_list);
-  if (r_view_list.is_error()) {
-    return promise.set_error(r_view_list.move_as_error());
-  }
-  auto view_list = r_view_list.move_as_ok();
-
-  auto owner_dialog_id = td_->dialog_manager_->get_my_dialog_id();
-  CHECK(story_id.is_server());
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  Story *story = get_story_editable(story_full_id);
-  if (story == nullptr) {
-    return promise.set_value(td_api::make_object<td_api::storyInteractions>());
-  }
-
-  auto total_count = view_list->count_;
-  if (total_count < 0 || static_cast<size_t>(total_count) < view_list->views_.size()) {
-    LOG(ERROR) << "Receive total_count = " << total_count << " and " << view_list->views_.size() << " story viewers";
-    total_count = static_cast<int32>(view_list->views_.size());
-  }
-  auto total_reaction_count = view_list->reactions_count_;
-  if (total_reaction_count < 0 || total_reaction_count > total_count) {
-    LOG(ERROR) << "Receive total_reaction_count = " << total_reaction_count << " with " << total_count
-               << " story viewers";
-    total_reaction_count = total_count;
-  }
-  auto total_forward_count = max(view_list->forwards_count_, 0);
-
-  StoryViewers story_viewers(td_, total_count, total_forward_count, total_reaction_count, std::move(view_list->views_),
-                             std::move(view_list->next_offset_));
-  if (story->content_ != nullptr) {
-    bool is_changed = false;
-    if (is_full && story->interaction_info_.set_counts(total_count, total_reaction_count)) {
-      is_changed = true;
-    }
-    if (is_first && story->interaction_info_.set_recent_viewer_user_ids(story_viewers.get_viewer_user_ids())) {
-      is_changed = true;
-    }
-    if (is_changed) {
-      on_story_changed(story_full_id, story, true, true);
-    }
-  }
-
-  on_view_dialog_active_stories(story_viewers.get_actor_dialog_ids());
-  promise.set_value(story_viewers.get_story_interactions_object(td_));
-}
-
-void StoryManager::get_channel_differences_if_needed(
-    telegram_api::object_ptr<telegram_api::stories_storyReactionsList> &&story_reactions,
-    Promise<telegram_api::object_ptr<telegram_api::stories_storyReactionsList>> promise) {
-  td_->user_manager_->on_get_users(std::move(story_reactions->users_), "stories_storyReactionsList");
-  td_->chat_manager_->on_get_chats(std::move(story_reactions->chats_), "stories_storyReactionsList");
-
-  vector<const telegram_api::object_ptr<telegram_api::Message> *> messages;
-  for (const auto &reaction : story_reactions->reactions_) {
-    CHECK(reaction != nullptr);
-    if (reaction->get_id() != telegram_api::storyReactionPublicForward::ID) {
-      continue;
-    }
-    messages.push_back(&static_cast<const telegram_api::storyReactionPublicForward *>(reaction.get())->message_);
-  }
-  td_->messages_manager_->get_channel_differences_if_needed(
-      messages,
-      PromiseCreator::lambda([actor_id = actor_id(this), story_reactions = std::move(story_reactions),
-                              promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          promise.set_value(std::move(story_reactions));
-        }
-      }),
-      "stories_storyReactionsList");
-}
-
-void StoryManager::get_dialog_story_interactions(StoryFullId story_full_id, ReactionType reaction_type,
-                                                 bool prefer_forwards, const string &offset, int32 limit,
-                                                 Promise<td_api::object_ptr<td_api::storyInteractions>> &&promise) {
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (!story_full_id.get_story_id().is_server()) {
-    return promise.set_value(td_api::make_object<td_api::storyInteractions>());
-  }
-  if (reaction_type.is_paid_reaction()) {
-    return promise.set_error(Status::Error(400, "Stories can't have paid reactions"));
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), story_full_id, promise = std::move(promise)](
-          Result<telegram_api::object_ptr<telegram_api::stories_storyReactionsList>> result) mutable {
-        send_closure(actor_id, &StoryManager::on_get_dialog_story_interactions, story_full_id, std::move(result),
-                     std::move(promise));
-      });
-
-  td_->create_handler<GetStoryReactionsListQuery>(std::move(query_promise))
-      ->send(story_full_id, reaction_type, prefer_forwards, offset, limit);
-}
-
-void StoryManager::on_get_dialog_story_interactions(
-    StoryFullId story_full_id,
-    Result<telegram_api::object_ptr<telegram_api::stories_storyReactionsList>> r_reaction_list,
-    Promise<td_api::object_ptr<td_api::storyInteractions>> &&promise) {
-  G()->ignore_result_if_closing(r_reaction_list);
-  if (r_reaction_list.is_error()) {
-    return promise.set_error(r_reaction_list.move_as_error());
-  }
-  auto reaction_list = r_reaction_list.move_as_ok();
-
-  Story *story = get_story_editable(story_full_id);
-  if (story == nullptr) {
-    return promise.set_value(td_api::make_object<td_api::storyInteractions>());
-  }
-
-  auto total_count = reaction_list->count_;
-  if (total_count < 0 || static_cast<size_t>(total_count) < reaction_list->reactions_.size()) {
-    LOG(ERROR) << "Receive total_count = " << total_count << " and " << reaction_list->reactions_.size()
-               << " story reactioners";
-    total_count = static_cast<int32>(reaction_list->reactions_.size());
-  }
-
-  StoryViewers story_viewers(td_, total_count, std::move(reaction_list->reactions_),
-                             std::move(reaction_list->next_offset_));
-  on_view_dialog_active_stories(story_viewers.get_actor_dialog_ids());
-  promise.set_value(story_viewers.get_story_interactions_object(td_));
-}
-
-void StoryManager::report_story(StoryFullId story_full_id, const string &option_id, const string &text,
-                                Promise<td_api::object_ptr<td_api::ReportStoryResult>> &&promise) {
-  if (!have_story_force(story_full_id)) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (!story_full_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Story can't be reported"));
-  }
-
-  td_->create_handler<ReportStoryQuery>(std::move(promise))->send(story_full_id, option_id, text);
-}
-
-void StoryManager::activate_stealth_mode(Promise<Unit> &&promise) {
-  td_->create_handler<ActivateStealthModeQuery>(std::move(promise))->send();
-}
-
-bool StoryManager::have_story(StoryFullId story_full_id) const {
-  return get_story(story_full_id) != nullptr;
-}
-
-bool StoryManager::have_story_force(StoryFullId story_full_id) {
-  return get_story_force(story_full_id, "have_story_force") != nullptr;
-}
-
-int32 StoryManager::get_story_date(StoryFullId story_full_id) {
-  const auto *story = get_story_force(story_full_id, "get_story_date");
-  return story != nullptr ? story->date_ : 0;
-}
-
-bool StoryManager::is_inaccessible_story(StoryFullId story_full_id) const {
-  return inaccessible_story_full_ids_.count(story_full_id) > 0;
-}
-
-int32 StoryManager::get_story_duration(StoryFullId story_full_id) const {
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr || story->content_ == nullptr) {
-    return -1;
-  }
-  auto *content = story->content_.get();
-  auto it = being_edited_stories_.find(story_full_id);
-  if (it != being_edited_stories_.end()) {
-    if (it->second->content_ != nullptr) {
-      content = it->second->content_.get();
-    }
-  }
-  return get_story_content_duration(td_, content);
-}
-
-void StoryManager::register_story(StoryFullId story_full_id, MessageFullId message_full_id,
-                                  QuickReplyMessageFullId quick_reply_message_full_id, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  CHECK(story_full_id.is_server());
-
-  LOG(INFO) << "Register " << story_full_id << " from " << message_full_id << '/' << quick_reply_message_full_id
-            << " from " << source;
-  if (quick_reply_message_full_id.is_valid()) {
-    story_quick_reply_messages_[story_full_id].insert(quick_reply_message_full_id);
-  } else {
-    CHECK(message_full_id.get_dialog_id().is_valid());
-    story_messages_[story_full_id].insert(message_full_id);
-  }
-}
-
-void StoryManager::unregister_story(StoryFullId story_full_id, MessageFullId message_full_id,
-                                    QuickReplyMessageFullId quick_reply_message_full_id, const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  CHECK(story_full_id.is_server());
-  LOG(INFO) << "Unregister " << story_full_id << " from " << message_full_id << '/' << quick_reply_message_full_id
-            << " from " << source;
-  if (quick_reply_message_full_id.is_valid()) {
-    auto &message_ids = story_quick_reply_messages_[story_full_id];
-    auto is_deleted = message_ids.erase(quick_reply_message_full_id) > 0;
-    LOG_CHECK(is_deleted) << source << ' ' << story_full_id << ' ' << quick_reply_message_full_id;
-    if (message_ids.empty()) {
-      story_quick_reply_messages_.erase(story_full_id);
-    }
-  } else {
-    auto &message_ids = story_messages_[story_full_id];
-    auto is_deleted = message_ids.erase(message_full_id) > 0;
-    LOG_CHECK(is_deleted) << source << ' ' << story_full_id << ' ' << message_full_id;
-    if (message_ids.empty()) {
-      story_messages_.erase(story_full_id);
-    }
-  }
-}
-
-StoryManager::StoryInfo StoryManager::get_story_info(StoryFullId story_full_id) const {
-  const auto *story = get_story(story_full_id);
-  auto story_id = story_full_id.get_story_id();
-  if (story == nullptr) {
-    LOG(INFO) << "Tried to get info about deleted " << story_full_id;
-    return {};
-  }
-  if (story_id.is_server() && !is_active_story(story)) {
-    LOG(INFO) << "Tried to get info about expired " << story_full_id;
-    return {};
-  }
-  StoryInfo story_info;
-  story_info.story_id_ = story_id;
-  story_info.date_ = story->date_;
-  story_info.expire_date_ = story->expire_date_;
-  story_info.is_for_close_friends_ = story->is_for_close_friends_;
-  return story_info;
-}
-
-td_api::object_ptr<td_api::storyInfo> StoryManager::get_story_info_object(StoryFullId story_full_id) const {
-  auto story_info = get_story_info(story_full_id);
-  if (!story_info.story_id_.is_valid()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::storyInfo>(story_info.story_id_.get(), story_info.date_,
-                                                story_info.is_for_close_friends_);
-}
-
-td_api::object_ptr<td_api::story> StoryManager::get_story_object(StoryFullId story_full_id) const {
-  return get_story_object(story_full_id, get_story(story_full_id));
-}
-
-td_api::object_ptr<td_api::story> StoryManager::get_story_object(StoryFullId story_full_id, const Story *story) const {
-  if (story == nullptr || story->content_ == nullptr) {
-    return nullptr;
-  }
-  auto owner_dialog_id = story_full_id.get_dialog_id();
-  if (!can_access_expired_story(owner_dialog_id, story) && !is_active_story(story)) {
-    return nullptr;
-  }
-
-  td_api::object_ptr<td_api::StoryPrivacySettings> privacy_settings =
-      story->privacy_rules_.get_story_privacy_settings_object(td_);
-  if (privacy_settings == nullptr) {
-    if (story->is_public_) {
-      privacy_settings = td_api::make_object<td_api::storyPrivacySettingsEveryone>();
-    } else if (story->is_for_contacts_) {
-      privacy_settings = td_api::make_object<td_api::storyPrivacySettingsContacts>();
-    } else if (story->is_for_close_friends_) {
-      privacy_settings = td_api::make_object<td_api::storyPrivacySettingsCloseFriends>();
-    } else {
-      privacy_settings = td_api::make_object<td_api::storyPrivacySettingsSelectedUsers>();
-    }
-  }
-
-  bool is_being_edited = false;
-  bool is_edited = story->is_edited_;
-
-  auto story_id = story_full_id.get_story_id();
-  CHECK(story_id.is_valid());
-  auto *content = story->content_.get();
-  auto *areas = &story->areas_;
-  auto *caption = &story->caption_;
-  if (story_id.is_server()) {
-    auto it = being_edited_stories_.find(story_full_id);
-    if (it != being_edited_stories_.end()) {
-      if (it->second->content_ != nullptr) {
-        content = it->second->content_.get();
-      }
-      if (it->second->edit_media_areas_) {
-        areas = &it->second->areas_;
-      }
-      if (it->second->edit_caption_) {
-        caption = &it->second->caption_;
-      }
-      is_being_edited = true;
-    }
-  }
-
-  auto is_being_sent = !story_id.is_server();
-  auto changelog_dialog_id = get_changelog_story_dialog_id();
-  auto is_visible_only_for_self = !story_id.is_server() || owner_dialog_id == changelog_dialog_id ||
-                                  (!story->is_pinned_ && !is_active_story(story));
-  auto can_be_deleted = can_delete_story(story_full_id, story);
-  auto can_be_edited = can_edit_story(story_full_id, story);
-  auto can_be_forwarded = !story->noforwards_ && story_id.is_server() &&
-                          privacy_settings->get_id() == td_api::storyPrivacySettingsEveryone::ID;
-  auto can_be_replied =
-      story_id.is_server() && owner_dialog_id != changelog_dialog_id && owner_dialog_id.get_type() == DialogType::User;
-  auto can_toggle_is_pinned = can_toggle_story_is_pinned(story_full_id, story);
-  auto unix_time = G()->unix_time();
-  auto can_get_statistics = can_get_story_statistics(story_full_id, story);
-  auto can_get_interactions = can_get_story_viewers(story_full_id, story, unix_time).is_ok();
-  auto repost_info =
-      story->forward_info_ != nullptr ? story->forward_info_->get_story_repost_info_object(td_) : nullptr;
-  auto interaction_info = story->interaction_info_.get_story_interaction_info_object(td_);
-  auto has_expired_viewers = is_my_story(owner_dialog_id) && story_id.is_server() &&
-                             unix_time >= get_story_viewers_expire_date(story) && interaction_info != nullptr &&
-                             interaction_info->view_count_ > interaction_info->reaction_count_;
-  const auto &reaction_counts = story->interaction_info_.get_reaction_counts();
-  auto story_areas = transform(*areas, [td = td_, &reaction_counts](const MediaArea &media_area) {
-    return media_area.get_story_area_object(td, reaction_counts);
-  });
-
-  story->is_update_sent_ = true;
-
-  return td_api::make_object<td_api::story>(
-      story_id.get(), td_->dialog_manager_->get_chat_id_object(owner_dialog_id, "get_story_object"),
-      story->sender_dialog_id_ == DialogId()
-          ? nullptr
-          : get_message_sender_object(td_, story->sender_dialog_id_, "get_story_object 2"),
-      story->date_, is_being_sent, is_being_edited, is_edited, story->is_pinned_, is_visible_only_for_self,
-      can_be_deleted, can_be_edited, can_be_forwarded, can_be_replied, can_toggle_is_pinned, can_get_statistics,
-      can_get_interactions, has_expired_viewers, std::move(repost_info), std::move(interaction_info),
-      story->chosen_reaction_type_.get_reaction_type_object(), std::move(privacy_settings),
-      get_story_content_object(td_, content), std::move(story_areas),
-      get_formatted_text_object(td_->user_manager_.get(), *caption, true, get_story_content_duration(td_, content)));
-}
-
-td_api::object_ptr<td_api::stories> StoryManager::get_stories_object(int32 total_count,
-                                                                     const vector<StoryFullId> &story_full_ids,
-                                                                     const vector<StoryId> &pinned_story_ids) const {
-  if (total_count == -1) {
-    total_count = static_cast<int32>(story_full_ids.size());
-  }
-  return td_api::make_object<td_api::stories>(
-      total_count,
-      transform(story_full_ids, [this](StoryFullId story_full_id) { return get_story_object(story_full_id); }),
-      StoryId::get_input_story_ids(pinned_story_ids));
-}
-
-td_api::object_ptr<td_api::chatActiveStories> StoryManager::get_chat_active_stories_object(
-    DialogId owner_dialog_id, const ActiveStories *active_stories) const {
-  StoryListId story_list_id;
-  StoryId max_read_story_id;
-  vector<td_api::object_ptr<td_api::storyInfo>> stories;
-  int64 order = 0;
-  if (active_stories != nullptr) {
-    story_list_id = active_stories->story_list_id_;
-    max_read_story_id = active_stories->max_read_story_id_;
-    for (auto story_id : active_stories->story_ids_) {
-      auto story_info = get_story_info_object({owner_dialog_id, story_id});
-      if (story_info != nullptr) {
-        stories.push_back(std::move(story_info));
-      }
-    }
-    if (stories.size() != active_stories->story_ids_.size()) {
-      send_closure_later(G()->story_manager(), &StoryManager::update_active_stories, owner_dialog_id);
-    }
-    if (story_list_id.is_valid()) {
-      order = active_stories->public_order_;
-    }
-  } else {
-    story_list_id = get_dialog_story_list_id(owner_dialog_id);
-  }
-  auto yet_unsent_story_ids_it = yet_unsent_story_ids_.find(owner_dialog_id);
-  if (yet_unsent_story_ids_it != yet_unsent_story_ids_.end()) {
-    for (auto story_id : yet_unsent_story_ids_it->second) {
-      auto story_info = get_story_info_object({owner_dialog_id, story_id});
-      if (story_info != nullptr) {
-        stories.push_back(std::move(story_info));
-      }
-    }
-  }
-  return td_api::make_object<td_api::chatActiveStories>(
-      td_->dialog_manager_->get_chat_id_object(owner_dialog_id, "updateChatActiveStories"),
-      story_list_id.get_story_list_object(), order, max_read_story_id.get(), std::move(stories));
-}
-
-td_api::object_ptr<td_api::CanSendStoryResult> StoryManager::get_can_send_story_result_object(const Status &error,
-                                                                                              bool force) {
-  CHECK(error.is_error());
-  if (error.message() == "PREMIUM_ACCOUNT_REQUIRED") {
-    return td_api::make_object<td_api::canSendStoryResultPremiumNeeded>();
-  }
-  if (error.message() == "BOOSTS_REQUIRED") {
-    return td_api::make_object<td_api::canSendStoryResultBoostNeeded>();
-  }
-  if (error.message() == "STORIES_TOO_MUCH") {
-    return td_api::make_object<td_api::canSendStoryResultActiveStoryLimitExceeded>();
-  }
-  if (begins_with(error.message(), "STORY_SEND_FLOOD_WEEKLY_")) {
-    auto r_next_date = to_integer_safe<int32>(error.message().substr(Slice("STORY_SEND_FLOOD_WEEKLY_").size()));
-    if (r_next_date.is_ok() && r_next_date.ok() > 0) {
-      auto retry_after = r_next_date.ok() - G()->unix_time();
-      if (retry_after > 0 || force) {
-        return td_api::make_object<td_api::canSendStoryResultWeeklyLimitExceeded>(max(retry_after, 0));
-      } else {
-        return td_api::make_object<td_api::canSendStoryResultOk>();
-      }
-    }
-  }
-  if (begins_with(error.message(), "STORY_SEND_FLOOD_MONTHLY_")) {
-    auto r_next_date = to_integer_safe<int32>(error.message().substr(Slice("STORY_SEND_FLOOD_MONTHLY_").size()));
-    if (r_next_date.is_ok() && r_next_date.ok() > 0) {
-      auto retry_after = r_next_date.ok() - G()->unix_time();
-      if (retry_after > 0 || force) {
-        return td_api::make_object<td_api::canSendStoryResultMonthlyLimitExceeded>(max(retry_after, 0));
-      } else {
-        return td_api::make_object<td_api::canSendStoryResultOk>();
-      }
-    }
-  }
-  return nullptr;
-}
-
-vector<FileId> StoryManager::get_story_file_ids(const Story *story) const {
-  if (story == nullptr || story->content_ == nullptr) {
-    return {};
-  }
-  return get_story_content_file_ids(td_, story->content_.get());
-}
-
-void StoryManager::delete_story_files(const Story *story) const {
-  for (auto file_id : get_story_file_ids(story)) {
-    send_closure(G()->file_manager(), &FileManager::delete_file, file_id, Promise<Unit>(), "delete_story_files");
-  }
-}
-
-void StoryManager::change_story_files(StoryFullId story_full_id, const Story *story,
-                                      const vector<FileId> &old_file_ids) {
-  auto new_file_ids = get_story_file_ids(story);
-  if (new_file_ids == old_file_ids) {
-    return;
-  }
-
-  for (auto file_id : old_file_ids) {
-    if (!td::contains(new_file_ids, file_id)) {
-      send_closure(G()->file_manager(), &FileManager::delete_file, file_id, Promise<Unit>(), "change_story_files");
-    }
-  }
-
-  auto file_source_id = get_story_file_source_id(story_full_id);
-  if (file_source_id.is_valid()) {
-    td_->file_manager_->change_files_source(file_source_id, old_file_ids, new_file_ids, "change_story_files");
-  }
-}
-
-StoryId StoryManager::on_get_story(DialogId owner_dialog_id,
-                                   telegram_api::object_ptr<telegram_api::StoryItem> &&story_item_ptr) {
-  if (!owner_dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive a story in " << owner_dialog_id;
-    return {};
-  }
-  CHECK(story_item_ptr != nullptr);
-  switch (story_item_ptr->get_id()) {
-    case telegram_api::storyItemDeleted::ID:
-      return on_get_deleted_story(owner_dialog_id,
-                                  telegram_api::move_object_as<telegram_api::storyItemDeleted>(story_item_ptr));
-    case telegram_api::storyItemSkipped::ID:
-      LOG(ERROR) << "Receive " << to_string(story_item_ptr);
-      return {};
-    case telegram_api::storyItem::ID: {
-      return on_get_new_story(owner_dialog_id, telegram_api::move_object_as<telegram_api::storyItem>(story_item_ptr));
-    }
-    default:
-      UNREACHABLE();
-  }
-}
-
-StoryId StoryManager::on_get_new_story(DialogId owner_dialog_id,
-                                       telegram_api::object_ptr<telegram_api::storyItem> &&story_item) {
-  CHECK(story_item != nullptr);
-  StoryId story_id(story_item->id_);
-  if (!story_id.is_server()) {
-    LOG(ERROR) << "Receive " << to_string(story_item);
-    return StoryId();
-  }
-  CHECK(owner_dialog_id.is_valid());
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  if (deleted_story_full_ids_.count(story_full_id) > 0) {
-    return StoryId();
-  }
-
-  bool is_bot = td_->auth_manager_->is_bot();
-  StoryId old_story_id;
-  auto updates_story_ids_it = update_story_ids_.find(story_full_id);
-  if (updates_story_ids_it != update_story_ids_.end()) {
-    old_story_id = updates_story_ids_it->second;
-    update_story_ids_.erase(updates_story_ids_it);
-
-    LOG(INFO) << "Receive sent " << old_story_id << " as " << story_full_id;
-
-    auto old_story_full_id = StoryFullId(owner_dialog_id, old_story_id);
-    const Story *old_story = get_story_force(old_story_full_id, "on_get_new_story");
-    if (old_story != nullptr) {
-      delete_story_files(old_story);
-      stories_.erase(old_story_full_id);
-    } else {
-      old_story_id = StoryId();
-    }
-  }
-
-  td_->dialog_manager_->force_create_dialog(owner_dialog_id, "on_get_new_story");
-
-  auto caption =
-      get_message_text(td_->user_manager_.get(), std::move(story_item->caption_), std::move(story_item->entities_),
-                       true, is_bot, story_item->date_, false, "on_get_new_story");
-  auto content = get_story_content(td_, std::move(story_item->media_), owner_dialog_id);
-  if (content == nullptr) {
-    return StoryId();
-  }
-
-  Story *story = get_story_force(story_full_id, "on_get_new_story");
-  bool is_changed = false;
-  bool need_save_to_database = false;
-  if (story == nullptr) {
-    if (is_bot && old_story_id == StoryId()) {
-      return StoryId();
-    }
-    auto s = make_unique<Story>();
-    story = s.get();
-    stories_.set(story_full_id, std::move(s));
-    is_changed = true;
-    story_item->min_ = false;
-    register_story_global_id(story_full_id, story);
-
-    inaccessible_story_full_ids_.erase(story_full_id);
-    failed_to_load_story_full_ids_.erase(story_full_id);
-    LOG(INFO) << "Add new " << story_full_id;
-  }
-  CHECK(story != nullptr);
-
-  story->receive_date_ = G()->unix_time();
-
-  const BeingEditedStory *edited_story = nullptr;
-  auto it = being_edited_stories_.find(story_full_id);
-  if (it != being_edited_stories_.end()) {
-    edited_story = it->second.get();
-  }
-
-  auto content_type = content->get_type();
-  auto old_file_ids = get_story_file_ids(story);
-  if (edited_story != nullptr && edited_story->content_ != nullptr) {
-    story->content_ = std::move(content);
-    need_save_to_database = true;
-  } else if (story->content_ == nullptr || story->content_->get_type() != content_type) {
-    story->content_ = std::move(content);
-    is_changed = true;
-  } else {
-    merge_story_contents(td_, story->content_.get(), content.get(), owner_dialog_id, need_save_to_database, is_changed);
-    story->content_ = std::move(content);
-  }
-
-  if (is_changed || need_save_to_database) {
-    change_story_files(story_full_id, story, old_file_ids);
-  }
-
-  if (story_item->date_ <= 0) {
-    LOG(ERROR) << "Receive " << story_full_id << " sent at " << story_item->date_;
-    story_item->date_ = 1;
-  }
-  if (story_item->expire_date_ <= story_item->date_) {
-    LOG(ERROR) << "Receive " << story_full_id << " sent at " << story_item->date_ << ", but expired at "
-               << story_item->expire_date_;
-    story_item->expire_date_ = story_item->date_ + 1;
-  }
-
-  if (story->is_edited_ != story_item->edited_ || story->is_pinned_ != story_item->pinned_ ||
-      story->is_public_ != story_item->public_ || story->is_for_close_friends_ != story_item->close_friends_ ||
-      story->is_for_contacts_ != story_item->contacts_ ||
-      story->is_for_selected_contacts_ != story_item->selected_contacts_ ||
-      story->noforwards_ != story_item->noforwards_ || story->date_ != story_item->date_ ||
-      story->expire_date_ != story_item->expire_date_) {
-    story->is_edited_ = story_item->edited_;
-    story->is_pinned_ = story_item->pinned_;
-    story->is_public_ = story_item->public_;
-    story->is_for_close_friends_ = story_item->close_friends_;
-    story->is_for_contacts_ = story_item->contacts_;
-    story->is_for_selected_contacts_ = story_item->selected_contacts_;
-    story->noforwards_ = story_item->noforwards_;
-    story->date_ = story_item->date_;
-    story->expire_date_ = story_item->expire_date_;
-    is_changed = true;
-  }
-  if (owner_dialog_id.get_type() == DialogType::User && !is_my_story(owner_dialog_id)) {
-    story_item->min_ = false;
-  }
-  unique_ptr<StoryForwardInfo> forward_info =
-      story_item->fwd_from_ != nullptr ? make_unique<StoryForwardInfo>(td_, std::move(story_item->fwd_from_)) : nullptr;
-  if (story->forward_info_ != forward_info) {
-    story->forward_info_ = std::move(forward_info);
-    is_changed = true;
-  }
-  auto sender_dialog_id = story_item->from_id_ != nullptr ? DialogId(story_item->from_id_) : DialogId();
-  if (sender_dialog_id != story->sender_dialog_id_) {
-    story->sender_dialog_id_ = sender_dialog_id;
-    is_changed = true;
-  }
-  if (!story_item->min_) {
-    auto privacy_rules = UserPrivacySettingRules::get_user_privacy_setting_rules(td_, std::move(story_item->privacy_));
-    auto interaction_info = StoryInteractionInfo(td_, std::move(story_item->views_));
-    auto chosen_reaction_type = ReactionType(std::move(story_item->sent_reaction_));
-
-    if (story->privacy_rules_ != privacy_rules) {
-      story->privacy_rules_ = std::move(privacy_rules);
-      is_changed = true;
-    }
-    if (story->interaction_info_ != interaction_info || story->chosen_reaction_type_ != chosen_reaction_type) {
-      auto pending_reaction_it = being_set_story_reactions_.find(story_full_id);
-      if (pending_reaction_it != being_set_story_reactions_.end()) {
-        LOG(INFO) << "Postpone " << story_full_id << " interaction info update, because there is a pending reaction";
-        pending_reaction_it->second |= 1;
-      } else {
-        story->interaction_info_ = std::move(interaction_info);
-        story->chosen_reaction_type_ = std::move(chosen_reaction_type);
-        is_changed = true;
-      }
-    }
-
-    if (is_my_story(owner_dialog_id)) {
-      story_item->out_ = true;
-    }
-    if (story->is_outgoing_ != story_item->out_) {
-      story->is_outgoing_ = story_item->out_;
-      need_save_to_database = true;
-    }
-  }
-  if (story->caption_ != caption) {
-    story->caption_ = std::move(caption);
-    if (edited_story != nullptr && edited_story->edit_caption_) {
-      need_save_to_database = true;
-    } else {
-      is_changed = true;
-    }
-  }
-  vector<MediaArea> media_areas;
-  for (auto &media_area_ptr : story_item->media_areas_) {
-    MediaArea media_area(td_, std::move(media_area_ptr));
-    if (media_area.is_valid()) {
-      media_areas.push_back(std::move(media_area));
-    }
-  }
-  if (story->areas_ != media_areas) {
-    story->areas_ = std::move(media_areas);
-    if (edited_story != nullptr && edited_story->edit_media_areas_) {
-      need_save_to_database = true;
-    } else {
-      is_changed = true;
-    }
-  }
-
-  Dependencies dependencies;
-  add_story_dependencies(dependencies, story);
-  for (auto dependent_dialog_id : dependencies.get_dialog_ids()) {
-    td_->dialog_manager_->force_create_dialog(dependent_dialog_id, "on_get_new_story", true);
-  }
-
-  on_story_changed(story_full_id, story, is_changed, need_save_to_database);
-
-  LOG(INFO) << "Receive " << story_full_id;
-
-  if (!td_->auth_manager_->is_bot() && is_active_story(story)) {
-    auto active_stories = get_active_stories_force(owner_dialog_id, "on_get_new_story");
-    if (active_stories == nullptr) {
-      if (is_subscribed_to_dialog_stories(owner_dialog_id)) {
-        load_dialog_expiring_stories(owner_dialog_id, 0, "on_get_new_story");
-
-        if (updated_active_stories_.count(owner_dialog_id)) {
-          on_update_active_stories(owner_dialog_id, StoryId(), vector<StoryId>{story_id}, Promise<Unit>(),
-                                   "on_get_new_story 1");
-        } else if (old_story_id.is_valid()) {
-          send_update_chat_active_stories(owner_dialog_id, active_stories, "on_get_new_story 2");
-        }
-      } else if (old_story_id.is_valid()) {
-        send_update_chat_active_stories(owner_dialog_id, active_stories, "on_get_new_story 3");
-      }
-    } else if (!contains(active_stories->story_ids_, story_id)) {
-      auto story_ids = active_stories->story_ids_;
-      story_ids.push_back(story_id);
-      size_t i = story_ids.size() - 1;
-      while (i > 0 && story_ids[i - 1].get() > story_id.get()) {
-        story_ids[i] = story_ids[i - 1];
-        i--;
-      }
-      story_ids[i] = story_id;
-      on_update_active_stories(owner_dialog_id, active_stories->max_read_story_id_, std::move(story_ids),
-                               Promise<Unit>(), "on_get_new_story");
-    } else if (old_story_id.is_valid()) {
-      send_update_chat_active_stories(owner_dialog_id, active_stories, "on_get_new_story 4");
-    }
-  }
-
-  if (old_story_id.is_valid()) {
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateStorySendSucceeded>(get_story_object(story_full_id, story),
-                                                                       old_story_id.get()));
-  }
-
-  return story_id;
-}
-
-StoryId StoryManager::on_get_skipped_story(DialogId owner_dialog_id,
-                                           telegram_api::object_ptr<telegram_api::storyItemSkipped> &&story_item) {
-  CHECK(story_item != nullptr);
-  StoryInfo story_info;
-  story_info.story_id_ = StoryId(story_item->id_);
-  story_info.date_ = story_item->date_;
-  story_info.expire_date_ = story_item->expire_date_;
-  story_info.is_for_close_friends_ = story_item->close_friends_;
-  return on_get_story_info(owner_dialog_id, std::move(story_info));
-}
-
-StoryId StoryManager::on_get_story_info(DialogId owner_dialog_id, StoryInfo &&story_info) {
-  StoryId story_id = story_info.story_id_;
-  if (!story_id.is_server()) {
-    LOG(ERROR) << "Receive " << story_id;
-    return StoryId();
-  }
-  if (deleted_story_full_ids_.count({owner_dialog_id, story_id}) > 0) {
-    return StoryId();
-  }
-
-  td_->dialog_manager_->force_create_dialog(owner_dialog_id, "on_get_story_info");
-
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  Story *story = get_story_editable(story_full_id);
-  if (story == nullptr) {
-    auto s = make_unique<Story>();
-    story = s.get();
-    stories_.set(story_full_id, std::move(s));
-    register_story_global_id(story_full_id, story);
-    story->is_outgoing_ = is_my_story(owner_dialog_id);
-
-    inaccessible_story_full_ids_.erase(story_full_id);
-  }
-  CHECK(story != nullptr);
-
-  if (story_info.date_ <= 0) {
-    LOG(ERROR) << "Receive " << story_full_id << " sent at " << story_info.date_;
-    story_info.date_ = 1;
-  }
-  if (story_info.expire_date_ <= story_info.date_) {
-    LOG(ERROR) << "Receive " << story_full_id << " sent at " << story_info.date_ << ", but expired at "
-               << story_info.expire_date_;
-    story_info.expire_date_ = story_info.date_ + 1;
-  }
-
-  if (story->date_ != story_info.date_ || story->expire_date_ != story_info.expire_date_ ||
-      story->is_for_close_friends_ != story_info.is_for_close_friends_) {
-    story->date_ = story_info.date_;
-    story->expire_date_ = story_info.expire_date_;
-    story->is_for_close_friends_ = story_info.is_for_close_friends_;
-    on_story_changed(story_full_id, story, true, true);
-  }
-  return story_id;
-}
-
-StoryId StoryManager::on_get_deleted_story(DialogId owner_dialog_id,
-                                           telegram_api::object_ptr<telegram_api::storyItemDeleted> &&story_item) {
-  StoryId story_id(story_item->id_);
-  on_delete_story({owner_dialog_id, story_id});
-  return story_id;
-}
-
-void StoryManager::on_delete_story(StoryFullId story_full_id) {
-  auto story_id = story_full_id.get_story_id();
-  if (!story_id.is_server()) {
-    LOG(ERROR) << "Receive deleted " << story_full_id;
-    return;
-  }
-
-  update_story_ids_.erase(story_full_id);
-
-  bool is_bot = td_->auth_manager_->is_bot();
-  if (!is_bot) {
-    inaccessible_story_full_ids_.set(story_full_id, Time::now());
-    send_closure_later(G()->messages_manager(),
-                       &MessagesManager::update_story_max_reply_media_timestamp_in_replied_messages, story_full_id);
-  }
-
-  const Story *story = get_story_force(story_full_id, "on_delete_story");
-  auto owner_dialog_id = story_full_id.get_dialog_id();
-  if (story != nullptr) {
-    LOG(INFO) << "Delete " << story_full_id;
-    if (story->is_update_sent_) {
-      send_closure(
-          G()->td(), &Td::send_update,
-          td_api::make_object<td_api::updateStoryDeleted>(
-              td_->dialog_manager_->get_chat_id_object(owner_dialog_id, "updateStoryDeleted"), story_id.get()));
-    }
-    delete_story_files(story);
-    unregister_story_global_id(story);
-    stories_.erase(story_full_id);
-    auto edited_stories_it = being_edited_stories_.find(story_full_id);
-    if (edited_stories_it != being_edited_stories_.end()) {
-      CHECK(edited_stories_it->second != nullptr);
-      auto log_event_id = edited_stories_it->second->log_event_id_;
-      if (log_event_id != 0) {
-        binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-      }
-      being_edited_stories_.erase(edited_stories_it);
-    }
-    edit_generations_.erase(story_full_id);
-  } else {
-    LOG(INFO) << "Delete not found " << story_full_id;
-  }
-
-  if (!is_bot) {
-    auto active_stories = get_active_stories_force(owner_dialog_id, "on_delete_story");
-    if (active_stories != nullptr && contains(active_stories->story_ids_, story_id)) {
-      auto story_ids = active_stories->story_ids_;
-      td::remove(story_ids, story_id);
-      on_update_active_stories(owner_dialog_id, active_stories->max_read_story_id_, std::move(story_ids),
-                               Promise<Unit>(), "on_delete_story");
-    }
-  }
-
-  delete_story_from_database(story_full_id);
-}
-
-void StoryManager::delete_story_from_database(StoryFullId story_full_id) {
-  if (G()->use_message_database()) {
-    LOG(INFO) << "Delete " << story_full_id << " from database";
-    G()->td_db()->get_story_db_async()->delete_story(story_full_id, Promise<Unit>());
-  }
-}
-
-void StoryManager::set_story_expire_timeout(const Story *story) {
-  CHECK(story->global_id_ > 0);
-  story_expire_timeout_.set_timeout_in(story->global_id_, story->expire_date_ - G()->unix_time());
-}
-
-void StoryManager::set_story_can_get_viewers_timeout(const Story *story) {
-  CHECK(story->global_id_ > 0);
-  story_can_get_viewers_timeout_.set_timeout_in(story->global_id_,
-                                                get_story_viewers_expire_date(story) - G()->unix_time() + 2);
-}
-
-void StoryManager::on_story_changed(StoryFullId story_full_id, const Story *story, bool is_changed,
-                                    bool need_save_to_database, bool from_database) {
-  if (!story_full_id.get_story_id().is_server()) {
-    return;
-  }
-  if (is_active_story(story)) {
-    set_story_expire_timeout(story);
-  }
-  if (has_unexpired_viewers(story_full_id, story)) {
-    set_story_can_get_viewers_timeout(story);
-  }
-  if (story->content_ == nullptr) {
-    return;
-  }
-  if (is_changed || need_save_to_database) {
-    if (G()->use_message_database() && !from_database) {
-      LOG(INFO) << "Add " << story_full_id << " to database";
-
-      int32 expires_at = 0;
-      if (is_active_story(story) && !can_access_expired_story(story_full_id.get_dialog_id(), story)) {
-        expires_at = story->expire_date_;
-      }
-
-      G()->td_db()->get_story_db_async()->add_story(story_full_id, expires_at, NotificationId(),
-                                                    log_event_store(*story), Promise<Unit>());
-    }
-
-    if (is_changed && story->is_update_sent_) {
-      send_update_story(story_full_id, story);
-    }
-
-    send_closure_later(G()->messages_manager(),
-                       &MessagesManager::update_story_max_reply_media_timestamp_in_replied_messages, story_full_id);
-    send_closure_later(G()->web_pages_manager(), &WebPagesManager::on_story_changed, story_full_id);
-
-    if (story_messages_.count(story_full_id) != 0) {
-      vector<MessageFullId> message_full_ids;
-      story_messages_[story_full_id].foreach(
-          [&message_full_ids](const MessageFullId &message_full_id) { message_full_ids.push_back(message_full_id); });
-      CHECK(!message_full_ids.empty());
-      for (const auto &message_full_id : message_full_ids) {
-        send_closure_later(G()->messages_manager(), &MessagesManager::on_external_update_message_content,
-                           message_full_id, "on_story_changed", true);
-      }
-    }
-
-    if (story_quick_reply_messages_.count(story_full_id) != 0) {
-      vector<QuickReplyMessageFullId> message_full_ids;
-      story_quick_reply_messages_[story_full_id].foreach(
-          [&message_full_ids](const QuickReplyMessageFullId &message_full_id) {
-            message_full_ids.push_back(message_full_id);
-          });
-      CHECK(!message_full_ids.empty());
-      for (const auto &message_full_id : message_full_ids) {
-        send_closure_later(G()->quick_reply_manager(), &QuickReplyManager::on_external_update_message_content,
-                           message_full_id, "on_story_changed", true);
-      }
-    }
-  }
-}
-
-void StoryManager::register_story_global_id(StoryFullId story_full_id, Story *story) {
-  CHECK(story_full_id.is_server());
-  CHECK(story->global_id_ == 0);
-  story->global_id_ = ++max_story_global_id_;
-  stories_by_global_id_[story->global_id_] = story_full_id;
-}
-
-void StoryManager::unregister_story_global_id(const Story *story) {
-  CHECK(story->global_id_ > 0);
-  stories_by_global_id_.erase(story->global_id_);
-}
-
-std::pair<int32, vector<StoryId>> StoryManager::on_get_stories(
-    DialogId owner_dialog_id, vector<StoryId> &&expected_story_ids,
-    telegram_api::object_ptr<telegram_api::stories_stories> &&stories) {
-  td_->user_manager_->on_get_users(std::move(stories->users_), "on_get_stories");
-  td_->chat_manager_->on_get_chats(std::move(stories->chats_), "on_get_stories");
-
-  vector<StoryId> story_ids;
-  for (auto &story : stories->stories_) {
-    switch (story->get_id()) {
-      case telegram_api::storyItemDeleted::ID:
-        on_get_deleted_story(owner_dialog_id, telegram_api::move_object_as<telegram_api::storyItemDeleted>(story));
-        break;
-      case telegram_api::storyItemSkipped::ID:
-        LOG(ERROR) << "Receive " << to_string(story);
-        break;
-      case telegram_api::storyItem::ID: {
-        auto story_id = on_get_new_story(owner_dialog_id, telegram_api::move_object_as<telegram_api::storyItem>(story));
-        if (story_id.is_valid()) {
-          story_ids.push_back(story_id);
-        }
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  auto total_count = stories->count_;
-  if (total_count < static_cast<int32>(story_ids.size())) {
-    LOG(ERROR) << "Expected at most " << total_count << " stories, but receive " << story_ids.size();
-    total_count = static_cast<int32>(story_ids.size());
-  }
-  if (!expected_story_ids.empty()) {
-    FlatHashSet<StoryId, StoryIdHash> all_story_ids;
-    for (auto expected_story_id : expected_story_ids) {
-      CHECK(expected_story_id != StoryId());
-      all_story_ids.insert(expected_story_id);
-    }
-    for (auto story_id : story_ids) {
-      if (all_story_ids.erase(story_id) == 0) {
-        LOG(ERROR) << "Receive " << story_id << " in " << owner_dialog_id << ", but didn't request it";
-      }
-    }
-    for (auto story_id : all_story_ids) {
-      on_delete_story({owner_dialog_id, story_id});
-    }
-  }
-  return {total_count, std::move(story_ids)};
-}
-
-DialogId StoryManager::on_get_dialog_stories(DialogId owner_dialog_id,
-                                             telegram_api::object_ptr<telegram_api::peerStories> &&peer_stories,
-                                             Promise<Unit> &&promise) {
-  if (peer_stories == nullptr) {
-    if (owner_dialog_id.is_valid()) {
-      LOG(INFO) << "Receive no stories in " << owner_dialog_id;
-      on_update_active_stories(owner_dialog_id, StoryId(), {}, std::move(promise), "on_get_dialog_stories");
-    } else {
-      promise.set_value(Unit());
-    }
-    return owner_dialog_id;
-  }
-
-  DialogId story_dialog_id(peer_stories->peer_);
-  if (owner_dialog_id.is_valid() && owner_dialog_id != story_dialog_id) {
-    LOG(ERROR) << "Receive stories from " << story_dialog_id << " instead of " << owner_dialog_id;
-    on_update_active_stories(owner_dialog_id, StoryId(), {}, std::move(promise), "on_get_dialog_stories 2");
-    return owner_dialog_id;
-  }
-  if (!story_dialog_id.is_valid()) {
-    LOG(ERROR) << "Receive stories in " << story_dialog_id;
-    promise.set_value(Unit());
-    return owner_dialog_id;
-  }
-  owner_dialog_id = story_dialog_id;
-
-  StoryId max_read_story_id(peer_stories->max_read_id_);
-  if (!max_read_story_id.is_server() && max_read_story_id != StoryId()) {
-    LOG(ERROR) << "Receive max read " << max_read_story_id;
-    max_read_story_id = StoryId();
-  }
-
-  vector<StoryId> story_ids;
-  for (auto &story : peer_stories->stories_) {
-    switch (story->get_id()) {
-      case telegram_api::storyItemDeleted::ID:
-        on_get_deleted_story(owner_dialog_id, telegram_api::move_object_as<telegram_api::storyItemDeleted>(story));
-        break;
-      case telegram_api::storyItemSkipped::ID:
-        story_ids.push_back(
-            on_get_skipped_story(owner_dialog_id, telegram_api::move_object_as<telegram_api::storyItemSkipped>(story)));
-        break;
-      case telegram_api::storyItem::ID:
-        story_ids.push_back(
-            on_get_new_story(owner_dialog_id, telegram_api::move_object_as<telegram_api::storyItem>(story)));
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  on_update_active_stories(story_dialog_id, max_read_story_id, std::move(story_ids), std::move(promise),
-                           "on_get_dialog_stories 3");
-  return story_dialog_id;
-}
-
-void StoryManager::on_update_dialog_max_story_ids(DialogId owner_dialog_id, StoryId max_story_id,
-                                                  StoryId max_read_story_id) {
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      // use send_closure_later because story order can be updated from update_user
-      send_closure_later(td_->user_manager_actor_, &UserManager::on_update_user_story_ids,
-                         owner_dialog_id.get_user_id(), max_story_id, max_read_story_id);
-      break;
-    case DialogType::Channel:
-      // use send_closure_later because story order can be updated from update_channel
-      send_closure_later(td_->chat_manager_actor_, &ChatManager::on_update_channel_story_ids,
-                         owner_dialog_id.get_channel_id(), max_story_id, max_read_story_id);
-      break;
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      break;
-  }
-}
-
-void StoryManager::on_update_dialog_max_read_story_id(DialogId owner_dialog_id, StoryId max_read_story_id) {
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      td_->user_manager_->on_update_user_max_read_story_id(owner_dialog_id.get_user_id(), max_read_story_id);
-      break;
-    case DialogType::Channel:
-      td_->chat_manager_->on_update_channel_max_read_story_id(owner_dialog_id.get_channel_id(), max_read_story_id);
-      break;
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      break;
-  }
-}
-
-void StoryManager::on_update_dialog_has_pinned_stories(DialogId owner_dialog_id, bool has_pinned_stories) {
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      td_->user_manager_->on_update_user_has_pinned_stories(owner_dialog_id.get_user_id(), has_pinned_stories);
-      break;
-    case DialogType::Channel:
-      td_->chat_manager_->on_update_channel_has_pinned_stories(owner_dialog_id.get_channel_id(), has_pinned_stories);
-      break;
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      break;
-  }
-}
-
-void StoryManager::on_update_dialog_stories_hidden(DialogId owner_dialog_id, bool stories_hidden) {
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      td_->user_manager_->on_update_user_stories_hidden(owner_dialog_id.get_user_id(), stories_hidden);
-      break;
-    case DialogType::Channel:
-      td_->chat_manager_->on_update_channel_stories_hidden(owner_dialog_id.get_channel_id(), stories_hidden);
-      break;
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      break;
-  }
-}
-
-void StoryManager::update_active_stories(DialogId owner_dialog_id) {
-  auto active_stories = get_active_stories(owner_dialog_id);
-  if (active_stories != nullptr) {
-    auto story_ids = active_stories->story_ids_;
-    on_update_active_stories(owner_dialog_id, active_stories->max_read_story_id_, std::move(story_ids), Promise<Unit>(),
-                             "update_active_stories");
-  }
-}
-
-void StoryManager::on_update_active_stories(DialogId owner_dialog_id, StoryId max_read_story_id,
-                                            vector<StoryId> &&story_ids, Promise<Unit> &&promise, const char *source,
-                                            bool from_database) {
-  CHECK(owner_dialog_id.is_valid());
-  if (td::remove_if(story_ids, [&](StoryId story_id) {
-        if (!story_id.is_server()) {
-          CHECK(!from_database);
-          return true;
-        }
-        if (!is_active_story(get_story({owner_dialog_id, story_id}))) {
-          LOG(INFO) << "Receive expired " << story_id << " in " << owner_dialog_id << " from " << source;
-          return true;
-        }
-        return false;
-      })) {
-    from_database = false;
-  }
-  if (story_ids.empty() || max_read_story_id.get() < story_ids[0].get()) {
-    max_read_story_id = StoryId();
-  } else if (max_read_story_id != StoryId()) {
-    CHECK(max_read_story_id.is_server());
-  }
-
-  LOG(INFO) << "Update active stories in " << owner_dialog_id << " to " << story_ids << " with max read "
-            << max_read_story_id << " from " << source;
-
-  if (story_ids.empty()) {
-    on_update_dialog_max_story_ids(owner_dialog_id, StoryId(), StoryId());
-    auto *active_stories = get_active_stories(owner_dialog_id);
-    if (active_stories != nullptr) {
-      LOG(INFO) << "Delete active stories for " << owner_dialog_id;
-      if (active_stories->story_list_id_.is_valid()) {
-        delete_active_stories_from_story_list(owner_dialog_id, active_stories);
-        auto &story_list = get_story_list(active_stories->story_list_id_);
-        if (!from_database && story_list.is_reloaded_server_total_count_ &&
-            story_list.server_total_count_ > static_cast<int32>(story_list.ordered_stories_.size())) {
-          story_list.server_total_count_--;
-          save_story_list(active_stories->story_list_id_, story_list.state_, story_list.server_total_count_,
-                          story_list.server_has_more_);
-        }
-        update_story_list_sent_total_count(active_stories->story_list_id_, story_list, "on_update_active_stories");
-      }
-      active_stories_.erase(owner_dialog_id);
-      send_update_chat_active_stories(owner_dialog_id, nullptr, "on_update_active_stories 1");
-    } else {
-      max_read_story_ids_.erase(owner_dialog_id);
-    }
-    if (!from_database) {
-      save_active_stories(owner_dialog_id, nullptr, std::move(promise), source);
-    }
-    failed_to_load_active_stories_.insert(owner_dialog_id);
-    return;
-  }
-  failed_to_load_active_stories_.erase(owner_dialog_id);
-
-  auto &active_stories = active_stories_[owner_dialog_id];
-  if (active_stories == nullptr) {
-    LOG(INFO) << "Create active stories for " << owner_dialog_id << " from " << source;
-    active_stories = make_unique<ActiveStories>();
-    auto old_max_read_story_id = max_read_story_ids_.get(owner_dialog_id);
-    if (old_max_read_story_id != StoryId()) {
-      max_read_story_ids_.erase(owner_dialog_id);
-      if (old_max_read_story_id.get() > max_read_story_id.get() && old_max_read_story_id.get() >= story_ids[0].get()) {
-        max_read_story_id = old_max_read_story_id;
-      }
-    }
-  }
-  on_update_dialog_max_story_ids(owner_dialog_id, story_ids.back(), max_read_story_id);
-  bool need_save_to_database = false;
-  if (active_stories->max_read_story_id_ != max_read_story_id || active_stories->story_ids_ != story_ids) {
-    need_save_to_database = true;
-    active_stories->max_read_story_id_ = max_read_story_id;
-    active_stories->story_ids_ = std::move(story_ids);
-    update_active_stories_order(owner_dialog_id, active_stories.get(), &need_save_to_database);
-    send_update_chat_active_stories(owner_dialog_id, active_stories.get(), "on_update_active_stories 2");
-  } else if (update_active_stories_order(owner_dialog_id, active_stories.get(), &need_save_to_database)) {
-    send_update_chat_active_stories(owner_dialog_id, active_stories.get(), "on_update_active_stories 3");
-  }
-  if (need_save_to_database && !from_database) {
-    save_active_stories(owner_dialog_id, active_stories.get(), std::move(promise), source);
-  } else {
-    promise.set_value(Unit());
-  }
-}
-
-bool StoryManager::update_active_stories_order(DialogId owner_dialog_id, ActiveStories *active_stories,
-                                               bool *need_save_to_database) {
-  if (td_->auth_manager_->is_bot()) {
-    return false;
-  }
-
-  CHECK(active_stories != nullptr);
-  CHECK(!active_stories->story_ids_.empty());
-  CHECK(owner_dialog_id.is_valid());
-
-  auto last_story_id = active_stories->story_ids_.back();
-  const Story *last_story = get_story({owner_dialog_id, last_story_id});
-  CHECK(last_story != nullptr);
-
-  int64 new_private_order = 0;
-  new_private_order += last_story->date_;
-  if (owner_dialog_id.get_type() == DialogType::User &&
-      td_->user_manager_->is_user_premium(owner_dialog_id.get_user_id())) {
-    new_private_order += static_cast<int64>(1) << 33;
-  }
-  if (owner_dialog_id == get_changelog_story_dialog_id()) {
-    new_private_order += static_cast<int64>(1) << 34;
-  }
-  if (active_stories->max_read_story_id_.get() < last_story_id.get()) {
-    new_private_order += static_cast<int64>(1) << 35;
-  }
-  if (owner_dialog_id == td_->dialog_manager_->get_my_dialog_id()) {
-    new_private_order += static_cast<int64>(1) << 36;
-  }
-  CHECK(new_private_order != 0);
-
-  StoryListId story_list_id = get_dialog_story_list_id(owner_dialog_id);
-  LOG(INFO) << "Update order of active stories of " << owner_dialog_id << " in " << story_list_id << " from "
-            << active_stories->private_order_ << '/' << active_stories->public_order_ << " to " << new_private_order;
-
-  int64 new_public_order = 0;
-  if (story_list_id.is_valid()) {
-    auto &story_list = get_story_list(story_list_id);
-    if (DialogDate(new_private_order, owner_dialog_id) <= story_list.list_last_story_date_) {
-      new_public_order = new_private_order;
-    }
-
-    if (active_stories->private_order_ != new_private_order || active_stories->story_list_id_ != story_list_id) {
-      delete_active_stories_from_story_list(owner_dialog_id, active_stories);
-      bool is_inserted = story_list.ordered_stories_.insert({new_private_order, owner_dialog_id}).second;
-      CHECK(is_inserted);
-
-      if (active_stories->story_list_id_ != story_list_id && active_stories->story_list_id_.is_valid()) {
-        update_story_list_sent_total_count(active_stories->story_list_id_, "update_active_stories_order 1");
-      }
-      update_story_list_sent_total_count(story_list_id, story_list, "update_active_stories_order 2");
-    }
-  } else if (active_stories->story_list_id_.is_valid()) {
-    delete_active_stories_from_story_list(owner_dialog_id, active_stories);
-    update_story_list_sent_total_count(active_stories->story_list_id_, "update_active_stories_order 3");
-  }
-
-  if (active_stories->private_order_ != new_private_order || active_stories->public_order_ != new_public_order ||
-      active_stories->story_list_id_ != story_list_id) {
-    LOG(INFO) << "Update order of active stories of " << owner_dialog_id << " to " << new_private_order << '/'
-              << new_public_order << " in list " << story_list_id;
-    if (active_stories->private_order_ != new_private_order || active_stories->story_list_id_ != story_list_id) {
-      *need_save_to_database = true;
-    }
-    active_stories->private_order_ = new_private_order;
-    if (active_stories->public_order_ != new_public_order || active_stories->story_list_id_ != story_list_id) {
-      if (active_stories->story_list_id_ != story_list_id) {
-        if (active_stories->story_list_id_.is_valid() && active_stories->public_order_ != 0) {
-          active_stories->public_order_ = 0;
-          send_update_chat_active_stories(owner_dialog_id, active_stories, "update_active_stories_order");
-        }
-        active_stories->story_list_id_ = story_list_id;
-      }
-      active_stories->public_order_ = new_public_order;
-      return true;
-    }
-  }
-
-  return false;
-}
-
-void StoryManager::delete_active_stories_from_story_list(DialogId owner_dialog_id,
-                                                         const ActiveStories *active_stories) {
-  if (!active_stories->story_list_id_.is_valid()) {
-    return;
-  }
-  auto &story_list = get_story_list(active_stories->story_list_id_);
-  bool is_deleted = story_list.ordered_stories_.erase({active_stories->private_order_, owner_dialog_id}) > 0;
-  CHECK(is_deleted);
-}
-
-void StoryManager::send_update_story(StoryFullId story_full_id, const Story *story) {
-  auto story_object = get_story_object(story_full_id, story);
-  if (story_object == nullptr) {
-    CHECK(story != nullptr);
-    CHECK(story->content_ != nullptr);
-    // the story can be just expired
-    return;
-  }
-  send_closure(G()->td(), &Td::send_update, td_api::make_object<td_api::updateStory>(std::move(story_object)));
-}
-
-td_api::object_ptr<td_api::updateChatActiveStories> StoryManager::get_update_chat_active_stories_object(
-    DialogId owner_dialog_id, const ActiveStories *active_stories) const {
-  return td_api::make_object<td_api::updateChatActiveStories>(
-      get_chat_active_stories_object(owner_dialog_id, active_stories));
-}
-
-void StoryManager::send_update_chat_active_stories(DialogId owner_dialog_id, const ActiveStories *active_stories,
-                                                   const char *source) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (updated_active_stories_.count(owner_dialog_id) == 0) {
-    if (active_stories == nullptr || active_stories->public_order_ == 0) {
-      LOG(INFO) << "Skip update about active stories in " << owner_dialog_id << " from " << source;
-      return;
-    }
-    CHECK(owner_dialog_id.is_valid());
-    updated_active_stories_.insert(owner_dialog_id);
-  }
-  LOG(INFO) << "Send update about active stories in " << owner_dialog_id << " from " << source;
-  send_closure(G()->td(), &Td::send_update, get_update_chat_active_stories_object(owner_dialog_id, active_stories));
-}
-
-void StoryManager::save_active_stories(DialogId owner_dialog_id, const ActiveStories *active_stories,
-                                       Promise<Unit> &&promise, const char *source) const {
-  if (!G()->use_message_database()) {
-    return promise.set_value(Unit());
-  }
-  if (active_stories == nullptr) {
-    LOG(INFO) << "Delete active stories of " << owner_dialog_id << " from database from " << source;
-    G()->td_db()->get_story_db_async()->delete_active_stories(owner_dialog_id, std::move(promise));
-  } else {
-    LOG(INFO) << "Add " << active_stories->story_ids_.size() << " active stories of " << owner_dialog_id
-              << " to database from " << source;
-    auto order = active_stories->story_list_id_.is_valid() ? active_stories->private_order_ : 0;
-    SavedActiveStories saved_active_stories;
-    saved_active_stories.max_read_story_id_ = active_stories->max_read_story_id_;
-    for (auto story_id : active_stories->story_ids_) {
-      auto story_info = get_story_info({owner_dialog_id, story_id});
-      if (story_info.story_id_.is_valid()) {
-        saved_active_stories.story_infos_.push_back(std::move(story_info));
-      }
-    }
-    if (saved_active_stories.story_infos_.size() != active_stories->story_ids_.size()) {
-      send_closure_later(G()->story_manager(), &StoryManager::update_active_stories, owner_dialog_id);
-    }
-    if (saved_active_stories.story_infos_.empty()) {
-      LOG(INFO) << "Have no active stories to save";
-      G()->td_db()->get_story_db_async()->delete_active_stories(owner_dialog_id, std::move(promise));
-    } else {
-      G()->td_db()->get_story_db_async()->add_active_stories(owner_dialog_id, active_stories->story_list_id_, order,
-                                                             log_event_store(saved_active_stories), std::move(promise));
-    }
-  }
-}
-
-void StoryManager::on_update_story_id(int64 random_id, StoryId new_story_id, const char *source) {
-  if (!new_story_id.is_server()) {
-    LOG(ERROR) << "Receive " << new_story_id << " with random_id " << random_id << " from " << source;
-    return;
-  }
-
-  auto it = being_sent_stories_.find(random_id);
-  if (it == being_sent_stories_.end()) {
-    // update about a new story sent from another device
-    LOG(INFO) << "Receive not sent outgoing " << new_story_id << " with random_id = " << random_id;
-    return;
-  }
-  auto old_story_full_id = it->second;
-  being_sent_stories_.erase(it);
-  auto is_deleted = being_sent_story_random_ids_.erase(old_story_full_id) > 0;
-  CHECK(is_deleted);
-
-  if (!have_story_force(old_story_full_id)) {
-    LOG(INFO) << "Can't find sent " << old_story_full_id;
-    // delete_sent_story_on_server(old_story_full_id, new_story_id);
-    return;
-  }
-
-  auto old_story_id = old_story_full_id.get_story_id();
-  auto new_story_full_id = StoryFullId(old_story_full_id.get_dialog_id(), new_story_id);
-
-  LOG(INFO) << "Save correspondence from " << new_story_full_id << " to " << old_story_id;
-  CHECK(!old_story_id.is_server());
-  update_story_ids_[new_story_full_id] = old_story_id;
-}
-
-bool StoryManager::on_update_read_stories(DialogId owner_dialog_id, StoryId max_read_story_id) {
-  if (!td_->dialog_manager_->have_dialog_info_force(owner_dialog_id, "on_update_read_stories")) {
-    LOG(INFO) << "Can't read stories in unknown " << owner_dialog_id;
-    return false;
-  }
-  if (max_read_story_id != StoryId() && !max_read_story_id.is_server()) {
-    LOG(ERROR) << "Receive max read " << max_read_story_id;
-    return false;
-  }
-  auto active_stories = get_active_stories_force(owner_dialog_id, "on_update_read_stories");
-  if (active_stories == nullptr) {
-    LOG(INFO) << "Can't find active stories in " << owner_dialog_id;
-    auto old_max_read_story_id = max_read_story_ids_.get(owner_dialog_id);
-    if (max_read_story_id.get() > old_max_read_story_id.get()) {
-      LOG(INFO) << "Set max read story identifier in " << owner_dialog_id << " to " << max_read_story_id;
-      max_read_story_ids_.set(owner_dialog_id, max_read_story_id);
-      on_update_dialog_max_read_story_id(owner_dialog_id, max_read_story_id);
-      return true;
-    }
-  } else if (max_read_story_id.get() > active_stories->max_read_story_id_.get()) {
-    LOG(INFO) << "Update max read story identifier in " << owner_dialog_id << " with stories "
-              << active_stories->story_ids_ << " from " << active_stories->max_read_story_id_ << " to "
-              << max_read_story_id;
-    auto story_ids = active_stories->story_ids_;
-    on_update_active_stories(owner_dialog_id, max_read_story_id, std::move(story_ids), Promise<Unit>(),
-                             "on_update_read_stories");
-    return true;
-  } else {
-    LOG(DEBUG) << "Don't need update max read story from " << active_stories->max_read_story_id_ << " to "
-               << max_read_story_id;
-  }
-  return false;
-}
-
-td_api::object_ptr<td_api::updateStoryStealthMode> StoryManager::get_update_story_stealth_mode() const {
-  return stealth_mode_.get_update_story_stealth_mode_object();
-}
-
-void StoryManager::send_update_story_stealth_mode() const {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  send_closure(G()->td(), &Td::send_update, get_update_story_stealth_mode());
-}
-
-void StoryManager::on_update_story_stealth_mode(
-    telegram_api::object_ptr<telegram_api::storiesStealthMode> &&stealth_mode) {
-  set_story_stealth_mode(StoryStealthMode(std::move(stealth_mode)));
-}
-
-void StoryManager::on_update_story_chosen_reaction_type(DialogId owner_dialog_id, StoryId story_id,
-                                                        ReactionType chosen_reaction_type) {
-  if (!owner_dialog_id.is_valid() || !story_id.is_server()) {
-    LOG(ERROR) << "Receive chosen reaction in " << story_id << " in " << owner_dialog_id;
-    return;
-  }
-  if (!td_->dialog_manager_->have_dialog_info_force(owner_dialog_id, "on_update_story_chosen_reaction_type")) {
-    return;
-  }
-  if (chosen_reaction_type.is_paid_reaction()) {
-    LOG(ERROR) << "Receive paid reaction for " << story_id << " in " << owner_dialog_id;
-    return;
-  }
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  auto pending_reaction_it = being_set_story_reactions_.find(story_full_id);
-  if (pending_reaction_it != being_set_story_reactions_.end()) {
-    LOG(INFO) << "Postpone " << story_full_id << " chosen reaction update, because there is a pending reaction";
-    pending_reaction_it->second |= 1;
-    return;
-  }
-  Story *story = get_story_force(story_full_id, "on_update_story_chosen_reaction_type");
-  on_story_chosen_reaction_changed(story_full_id, story, chosen_reaction_type);
-}
-
-string StoryManager::get_story_stealth_mode_key() {
-  return "stealth_mode";
-}
-
-void StoryManager::schedule_stealth_mode_update() {
-  if (stealth_mode_.is_empty()) {
-    stealth_mode_update_timeout_.cancel_timeout();
-    return;
-  }
-
-  auto timeout = max(static_cast<double>(stealth_mode_.get_update_date() - G()->unix_time()), 0.1);
-  LOG(INFO) << "Schedule stealth mode update in " << timeout;
-  stealth_mode_update_timeout_.set_callback(std::move(update_stealth_mode_static));
-  stealth_mode_update_timeout_.set_callback_data(static_cast<void *>(this));
-  stealth_mode_update_timeout_.set_timeout_in(timeout);
-}
-
-void StoryManager::set_story_stealth_mode(StoryStealthMode stealth_mode) {
-  stealth_mode.update();
-  if (stealth_mode == stealth_mode_) {
-    return;
-  }
-
-  stealth_mode_ = stealth_mode;
-  LOG(INFO) << stealth_mode_;
-  schedule_stealth_mode_update();
-  send_update_story_stealth_mode();
-
-  if (stealth_mode_.is_empty()) {
-    G()->td_db()->get_binlog_pmc()->erase(get_story_stealth_mode_key());
-  } else {
-    G()->td_db()->get_binlog_pmc()->set(get_story_stealth_mode_key(), log_event_store(stealth_mode_).as_slice().str());
-  }
-}
-
-void StoryManager::update_stealth_mode_static(void *story_manager) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(story_manager != nullptr);
-  static_cast<StoryManager *>(story_manager)->update_stealth_mode();
-}
-
-void StoryManager::update_stealth_mode() {
-  if (stealth_mode_.update()) {
-    LOG(INFO) << stealth_mode_;
-    send_update_story_stealth_mode();
-  }
-  schedule_stealth_mode_update();
-}
-
-DialogId StoryManager::get_changelog_story_dialog_id() const {
-  return DialogId(UserId(td_->option_manager_->get_option_integer(
-      "stories_changelog_user_id", UserManager::get_service_notifications_user_id().get())));
-}
-
-bool StoryManager::is_subscribed_to_dialog_stories(DialogId owner_dialog_id) const {
-  if (owner_dialog_id == get_changelog_story_dialog_id()) {
-    return true;
-  }
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      if (is_my_story(owner_dialog_id)) {
-        return true;
-      }
-      return td_->user_manager_->is_user_contact(owner_dialog_id.get_user_id());
-    case DialogType::Channel:
-      return td_->chat_manager_->get_channel_status(owner_dialog_id.get_channel_id()).is_member();
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      return false;
-  }
-}
-
-StoryListId StoryManager::get_dialog_story_list_id(DialogId owner_dialog_id) const {
-  if (!is_subscribed_to_dialog_stories(owner_dialog_id)) {
-    return StoryListId();
-  }
-  switch (owner_dialog_id.get_type()) {
-    case DialogType::User:
-      if (!is_my_story(owner_dialog_id) && td_->user_manager_->get_user_stories_hidden(owner_dialog_id.get_user_id())) {
-        return StoryListId::archive();
-      }
-      return StoryListId::main();
-    case DialogType::Channel:
-      if (td_->chat_manager_->get_channel_stories_hidden(owner_dialog_id.get_channel_id())) {
-        return StoryListId::archive();
-      }
-      return StoryListId::main();
-    case DialogType::Chat:
-    case DialogType::SecretChat:
-    case DialogType::None:
-    default:
-      return StoryListId::archive();
-  }
-}
-
-void StoryManager::on_dialog_active_stories_order_updated(DialogId owner_dialog_id, const char *source) {
-  // called from update_user/on_channel_status_changed, must not create the dialog and hence must not load active stories
-  auto active_stories = get_active_stories_editable(owner_dialog_id);
-  bool need_save_to_database = false;
-  if (active_stories != nullptr &&
-      update_active_stories_order(owner_dialog_id, active_stories, &need_save_to_database)) {
-    send_update_chat_active_stories(owner_dialog_id, active_stories, source);
-  }
-  if (need_save_to_database) {
-    save_active_stories(owner_dialog_id, active_stories, Promise<Unit>(), source);
-  }
-}
-
-void StoryManager::on_get_story_views(DialogId owner_dialog_id, const vector<StoryId> &story_ids,
-                                      telegram_api::object_ptr<telegram_api::stories_storyViews> &&story_views) {
-  schedule_interaction_info_update();
-  td_->user_manager_->on_get_users(std::move(story_views->users_), "on_get_story_views");
-  if (story_ids.size() != story_views->views_.size()) {
-    LOG(ERROR) << "Receive invalid views for " << story_ids << ": " << to_string(story_views);
-    return;
-  }
-  for (size_t i = 0; i < story_ids.size(); i++) {
-    auto story_id = story_ids[i];
-    CHECK(story_id.is_server());
-
-    StoryFullId story_full_id{owner_dialog_id, story_id};
-    Story *story = get_story_editable(story_full_id);
-    if (story == nullptr || story->content_ == nullptr) {
-      continue;
-    }
-
-    StoryInteractionInfo interaction_info(td_, std::move(story_views->views_[i]));
-    CHECK(!interaction_info.is_empty());
-    if (story->interaction_info_ != interaction_info) {
-      auto pending_reaction_it = being_set_story_reactions_.find(story_full_id);
-      if (pending_reaction_it != being_set_story_reactions_.end()) {
-        LOG(INFO) << "Postpone " << story_full_id << " interaction info update, because there is a pending reaction";
-        pending_reaction_it->second |= 1;
-      } else {
-        story->interaction_info_ = std::move(interaction_info);
-        on_story_changed(story_full_id, story, true, true);
-      }
-    }
-  }
-}
-
-void StoryManager::on_view_dialog_active_stories(vector<DialogId> dialog_ids) {
-  if (dialog_ids.empty() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  LOG(DEBUG) << "View active stories of " << dialog_ids;
-
-  const size_t MAX_SLICE_SIZE = 100;  // server side limit
-  vector<DialogId> input_dialog_ids;
-  vector<telegram_api::object_ptr<telegram_api::InputPeer>> input_peers;
-  for (auto &dialog_id : dialog_ids) {
-    if (td::contains(input_dialog_ids, dialog_id)) {
-      continue;
-    }
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    if (input_peer == nullptr) {
-      continue;
-    }
-
-    bool need_poll = [&] {
-      switch (dialog_id.get_type()) {
-        case DialogType::User:
-          return td_->user_manager_->can_poll_user_active_stories(dialog_id.get_user_id());
-        case DialogType::Channel:
-          return td_->chat_manager_->can_poll_channel_active_stories(dialog_id.get_channel_id());
-        case DialogType::Chat:
-        case DialogType::SecretChat:
-        case DialogType::None:
-        default:
-          return false;
-      }
-    }();
-    if (!need_poll) {
-      continue;
-    }
-    if (!being_reloaded_active_stories_dialog_ids_.insert(dialog_id).second) {
-      continue;
-    }
-
-    input_dialog_ids.push_back(dialog_id);
-    input_peers.push_back(std::move(input_peer));
-    if (input_peers.size() == MAX_SLICE_SIZE) {
-      td_->create_handler<GetStoriesMaxIdsQuery>()->send(std::move(input_dialog_ids), std::move(input_peers));
-      input_dialog_ids.clear();
-      input_peers.clear();
-    }
-  }
-  if (!input_peers.empty()) {
-    td_->create_handler<GetStoriesMaxIdsQuery>()->send(std::move(input_dialog_ids), std::move(input_peers));
-  }
-}
-
-void StoryManager::on_get_dialog_max_active_story_ids(const vector<DialogId> &dialog_ids,
-                                                      const vector<int32> &max_story_ids) {
-  for (auto &dialog_id : dialog_ids) {
-    auto is_deleted = being_reloaded_active_stories_dialog_ids_.erase(dialog_id) > 0;
-    CHECK(is_deleted);
-  }
-  if (dialog_ids.size() != max_story_ids.size()) {
-    if (!max_story_ids.empty()) {
-      LOG(ERROR) << "Receive " << max_story_ids.size() << " max active story identifiers for " << dialog_ids;
-    }
-    return;
-  }
-  for (size_t i = 0; i < dialog_ids.size(); i++) {
-    auto max_story_id = StoryId(max_story_ids[i]);
-    auto dialog_id = dialog_ids[i];
-    if (max_story_id == StoryId() || max_story_id.is_server()) {
-      if (dialog_id.get_type() == DialogType::User) {
-        td_->user_manager_->on_update_user_story_ids(dialog_id.get_user_id(), max_story_id, StoryId());
-      } else {
-        td_->chat_manager_->on_update_channel_story_ids(dialog_id.get_channel_id(), max_story_id, StoryId());
-      }
-    } else {
-      LOG(ERROR) << "Receive " << max_story_id << " as maximum active story for " << dialog_id;
-    }
-  }
-}
-
-FileSourceId StoryManager::get_story_file_source_id(StoryFullId story_full_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return FileSourceId();
-  }
-
-  if (!story_full_id.is_server()) {
-    return FileSourceId();
-  }
-
-  auto &file_source_id = story_full_id_to_file_source_id_[story_full_id];
-  if (!file_source_id.is_valid()) {
-    file_source_id = td_->file_reference_manager_->create_story_file_source(story_full_id);
-  }
-  return file_source_id;
-}
-
-void StoryManager::reload_story(StoryFullId story_full_id, Promise<Unit> &&promise, const char *source) {
-  if (deleted_story_full_ids_.count(story_full_id) > 0) {
-    return promise.set_value(Unit());
-  }
-  double last_reloaded_at = inaccessible_story_full_ids_.get(story_full_id);
-  if (last_reloaded_at >= Time::now() - OPENED_STORY_POLL_PERIOD / 2 && last_reloaded_at > 0.0) {
-    return promise.set_value(Unit());
-  }
-
-  LOG(INFO) << "Reload " << story_full_id << " from " << source;
-  auto dialog_id = story_full_id.get_dialog_id();
-  auto story_id = story_full_id.get_story_id();
-  if (!story_id.is_server()) {
-    return promise.set_error(Status::Error(400, "Invalid story identifier"));
-  }
-
-  auto &queries = reload_story_queries_[story_full_id];
-  if (!queries.empty() && !promise) {
-    return;
-  }
-  queries.push_back(std::move(promise));
-  if (queries.size() != 1) {
-    return;
-  }
-
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), story_full_id](Result<Unit> &&result) mutable {
-        send_closure(actor_id, &StoryManager::on_reload_story, story_full_id, std::move(result));
-      });
-  td_->create_handler<GetStoriesByIDQuery>(std::move(query_promise))->send(dialog_id, {story_id});
-}
-
-void StoryManager::on_reload_story(StoryFullId story_full_id, Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-  auto it = reload_story_queries_.find(story_full_id);
-  CHECK(it != reload_story_queries_.end());
-  CHECK(!it->second.empty());
-  auto promises = std::move(it->second);
-  reload_story_queries_.erase(it);
-
-  if (result.is_ok()) {
-    set_promises(promises);
-  } else {
-    fail_promises(promises, result.move_as_error());
-  }
-}
-
-void StoryManager::get_story(DialogId owner_dialog_id, StoryId story_id, bool only_local,
-                             Promise<td_api::object_ptr<td_api::story>> &&promise) {
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(owner_dialog_id, false, AccessRights::Read, "get_story"));
-  if (!story_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid story identifier specified"));
-  }
-
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  const Story *story = get_story_force(story_full_id, "get_story");
-  if (story != nullptr && story->content_ != nullptr) {
-    if (!story->is_update_sent_) {
-      send_update_story(story_full_id, story);
-    }
-    return promise.set_value(get_story_object(story_full_id, story));
-  }
-  if (only_local || !story_id.is_server()) {
-    return promise.set_value(nullptr);
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), story_full_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        send_closure(actor_id, &StoryManager::do_get_story, story_full_id, std::move(result), std::move(promise));
-      });
-  reload_story(story_full_id, std::move(query_promise), "get_story");
-}
-
-void StoryManager::do_get_story(StoryFullId story_full_id, Result<Unit> &&result,
-                                Promise<td_api::object_ptr<td_api::story>> &&promise) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error()) {
-    return promise.set_error(result.move_as_error());
-  }
-  const Story *story = get_story(story_full_id);
-  if (story != nullptr && story->content_ != nullptr && !story->is_update_sent_) {
-    send_update_story(story_full_id, story);
-  }
-  promise.set_value(get_story_object(story_full_id, story));
-}
-
-Result<StoryId> StoryManager::get_next_yet_unsent_story_id(DialogId dialog_id) {
-  auto &story_id = current_yet_unsent_story_ids_[dialog_id];
-  if (story_id == 0) {
-    story_id = StoryId::MAX_SERVER_STORY_ID;
-  } else if (story_id == std::numeric_limits<int32>::max()) {
-    return Status::Error(400, "Tried to send too many stories above daily limit");
-  }
-  return StoryId(++story_id);
-}
-
-void StoryManager::return_dialogs_to_send_stories(Promise<td_api::object_ptr<td_api::chats>> &&promise,
-                                                  const vector<ChannelId> &channel_ids) {
-  if (!promise) {
-    return;
-  }
-
-  auto total_count = narrow_cast<int32>(channel_ids.size());
-  promise.set_value(td_api::make_object<td_api::chats>(
-      total_count, transform(channel_ids, [](ChannelId channel_id) { return DialogId(channel_id).get(); })));
-}
-
-void StoryManager::get_dialogs_to_send_stories(Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  if (channels_to_send_stories_inited_) {
-    return return_dialogs_to_send_stories(std::move(promise), channels_to_send_stories_);
-  }
-
-  if (get_dialogs_to_send_stories_queries_.empty() && G()->use_message_database()) {
-    auto pmc_key = "channels_to_send_stories";
-    auto str = G()->td_db()->get_binlog_pmc()->get(pmc_key);
-    if (!str.empty()) {
-      auto r_channel_ids = transform(full_split(Slice(str), ','), [](Slice str) -> Result<ChannelId> {
-        TRY_RESULT(channel_id_int, to_integer_safe<int64>(str));
-        ChannelId channel_id(channel_id_int);
-        if (!channel_id.is_valid()) {
-          return Status::Error("Have invalid channel ID");
-        }
-        return channel_id;
-      });
-      if (any_of(r_channel_ids, [](const auto &r_channel_id) { return r_channel_id.is_error(); })) {
-        LOG(ERROR) << "Can't parse " << str;
-        G()->td_db()->get_binlog_pmc()->erase(pmc_key);
-      } else {
-        Dependencies dependencies;
-        vector<ChannelId> channel_ids;
-        for (auto &r_channel_id : r_channel_ids) {
-          auto channel_id = r_channel_id.move_as_ok();
-          dependencies.add_dialog_and_dependencies(DialogId(channel_id));
-          channel_ids.push_back(channel_id);
-        }
-        if (!dependencies.resolve_force(td_, "get_dialogs_to_send_stories")) {
-          G()->td_db()->get_binlog_pmc()->erase(pmc_key);
-        } else {
-          for (auto channel_id : channel_ids) {
-            if (td_->chat_manager_->get_channel_status(channel_id).can_post_stories()) {
-              channels_to_send_stories_.push_back(channel_id);
-            }
-          }
-          channels_to_send_stories_inited_ = true;
-
-          return_dialogs_to_send_stories(std::move(promise), channels_to_send_stories_);
-          promise = {};
-        }
-      }
-    }
-  }
-
-  reload_dialogs_to_send_stories(std::move(promise));
-}
-
-void StoryManager::reload_dialogs_to_send_stories(Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  get_dialogs_to_send_stories_queries_.push_back(std::move(promise));
-  if (get_dialogs_to_send_stories_queries_.size() == 1) {
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this)](Result<Unit> &&result) {
-      send_closure(actor_id, &StoryManager::finish_get_dialogs_to_send_stories, std::move(result));
-    });
-    td_->create_handler<GetChatsToSendStoriesQuery>(std::move(query_promise))->send();
-  }
-}
-
-void StoryManager::finish_get_dialogs_to_send_stories(Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-
-  auto promises = std::move(get_dialogs_to_send_stories_queries_);
-  reset_to_empty(get_dialogs_to_send_stories_queries_);
-  if (result.is_error()) {
-    return fail_promises(promises, result.move_as_error());
-  }
-
-  next_reload_channels_to_send_stories_time_ = Time::now() + 86400;
-
-  CHECK(channels_to_send_stories_inited_);
-  for (auto &promise : promises) {
-    return_dialogs_to_send_stories(std::move(promise), channels_to_send_stories_);
-  }
-}
-
-void StoryManager::update_dialogs_to_send_stories(ChannelId channel_id, bool can_send_stories) {
-  if (channels_to_send_stories_inited_) {
-    CHECK(!td_->auth_manager_->is_bot());
-    bool was_changed = false;
-    if (!can_send_stories) {
-      was_changed = td::remove(channels_to_send_stories_, channel_id);
-    } else {
-      if (!td::contains(channels_to_send_stories_, channel_id)) {
-        channels_to_send_stories_.push_back(channel_id);
-        was_changed = true;
-
-        next_reload_channels_to_send_stories_time_ = Time::now();
-        set_timeout_in(1.0);
-      }
-    }
-    if (was_changed) {
-      save_channels_to_send_stories();
-    }
-  }
-}
-
-void StoryManager::on_get_dialogs_to_send_stories(vector<tl_object_ptr<telegram_api::Chat>> &&chats) {
-  auto channel_ids = td_->chat_manager_->get_channel_ids(std::move(chats), "on_get_dialogs_to_send_stories");
-  if (channels_to_send_stories_inited_ && channels_to_send_stories_ == channel_ids) {
-    return;
-  }
-  channels_to_send_stories_.clear();
-  for (auto channel_id : channel_ids) {
-    td_->dialog_manager_->force_create_dialog(DialogId(channel_id), "on_get_dialogs_to_send_stories");
-    if (td_->chat_manager_->get_channel_status(channel_id).can_post_stories()) {
-      channels_to_send_stories_.push_back(channel_id);
-    }
-  }
-  channels_to_send_stories_inited_ = true;
-
-  save_channels_to_send_stories();
-}
-
-void StoryManager::save_channels_to_send_stories() {
-  CHECK(channels_to_send_stories_inited_);
-  if (G()->use_message_database()) {
-    G()->td_db()->get_binlog_pmc()->set(
-        "channels_to_send_stories",
-        implode(transform(channels_to_send_stories_, [](auto channel_id) { return PSTRING() << channel_id.get(); }),
-                ','));
-  }
-}
-
-void StoryManager::can_send_story(DialogId dialog_id,
-                                  Promise<td_api::object_ptr<td_api::CanSendStoryResult>> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "can_send_story")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (!can_post_stories(dialog_id)) {
-    return promise.set_error(Status::Error(400, "Not enough rights to post stories in the chat"));
-  }
-  td_->create_handler<CanSendStoryQuery>(std::move(promise))->send(dialog_id);
-}
-
-void StoryManager::send_story(DialogId dialog_id, td_api::object_ptr<td_api::InputStoryContent> &&input_story_content,
-                              td_api::object_ptr<td_api::inputStoryAreas> &&input_areas,
-                              td_api::object_ptr<td_api::formattedText> &&input_caption,
-                              td_api::object_ptr<td_api::StoryPrivacySettings> &&settings, int32 active_period,
-                              td_api::object_ptr<td_api::storyFullId> &&from_story_full_id, bool is_pinned,
-                              bool protect_content, Promise<td_api::object_ptr<td_api::story>> &&promise) {
-  if (!td_->dialog_manager_->have_dialog_force(dialog_id, "send_story")) {
-    return promise.set_error(Status::Error(400, "Chat not found"));
-  }
-  if (!can_post_stories(dialog_id)) {
-    return promise.set_error(Status::Error(400, "Not enough rights to post stories in the chat"));
-  }
-
-  bool is_bot = td_->auth_manager_->is_bot();
-  TRY_RESULT_PROMISE(promise, content, get_input_story_content(td_, std::move(input_story_content), dialog_id));
-  TRY_RESULT_PROMISE(promise, caption,
-                     get_formatted_text(td_, DialogId(), std::move(input_caption), is_bot, true, false, false));
-  if (dialog_id != td_->dialog_manager_->get_my_dialog_id() && !is_bot) {
-    settings = td_api::make_object<td_api::storyPrivacySettingsEveryone>();
-  }
-  TRY_RESULT_PROMISE(promise, privacy_rules,
-                     UserPrivacySettingRules::get_user_privacy_setting_rules(td_, std::move(settings)));
-  unique_ptr<StoryForwardInfo> forward_info;
-  StoryFullId forward_from_story_full_id;
-  if (from_story_full_id != nullptr) {
-    forward_from_story_full_id =
-        StoryFullId(DialogId(from_story_full_id->sender_chat_id_), StoryId(from_story_full_id->story_id_));
-    const Story *story = get_story(forward_from_story_full_id);
-    if (story == nullptr || story->content_ == nullptr) {
-      return promise.set_error(Status::Error(400, "Story to repost not found"));
-    }
-    if (story->noforwards_) {
-      return promise.set_error(Status::Error(400, "Story can't be reposted"));
-    }
-    if (story->forward_info_ != nullptr) {
-      forward_info = make_unique<StoryForwardInfo>(*story->forward_info_);
-    } else {
-      forward_info = make_unique<StoryForwardInfo>(forward_from_story_full_id, true);
-    }
-    forward_info->hide_sender_if_needed(td_);
-  }
-  if (active_period != 86400 && !(G()->is_test_dc() && (active_period == 60 || active_period == 300))) {
-    bool is_premium = td_->option_manager_->get_option_boolean("is_premium");
-    if (!is_premium || !td::contains(vector<int32>{6 * 3600, 12 * 3600, 2 * 86400}, active_period)) {
-      return promise.set_error(Status::Error(400, "Invalid story active period specified"));
-    }
-  }
-  TRY_RESULT_PROMISE(promise, story_id, get_next_yet_unsent_story_id(dialog_id));
-  vector<MediaArea> areas;
-  if (input_areas != nullptr) {
-    vector<MediaArea> old_media_areas;
-    for (auto &input_area : input_areas->areas_) {
-      MediaArea media_area(td_, std::move(input_area), old_media_areas);
-      if (media_area.is_valid()) {
-        areas.push_back(std::move(media_area));
-      }
-    }
-  }
-  if (!is_bot && !td_->option_manager_->get_option_boolean("can_use_text_entities_in_story_caption")) {
-    caption.entities.clear();
-  }
-
-  auto story = make_unique<Story>();
-  if (dialog_id.get_type() == DialogType::Channel &&
-      td_->chat_manager_->is_megagroup_channel(dialog_id.get_channel_id())) {
-    story->sender_dialog_id_ = td_->messages_manager_->get_dialog_default_send_message_as_dialog_id(dialog_id);
-    if (story->sender_dialog_id_ == DialogId() &&
-        !td_->dialog_manager_->is_anonymous_administrator(dialog_id, nullptr)) {
-      story->sender_dialog_id_ = td_->dialog_manager_->get_my_dialog_id();
-    }
-  }
-  story->date_ = G()->unix_time();
-  story->expire_date_ = story->date_ + active_period;
-  story->is_pinned_ = is_pinned;
-  story->is_outgoing_ = true;
-  story->noforwards_ = protect_content;
-  story->privacy_rules_ = std::move(privacy_rules);
-  story->content_ = std::move(content);
-  story->forward_info_ = std::move(forward_info);
-  story->areas_ = std::move(areas);
-  story->caption_ = std::move(caption);
-
-  int64 random_id;
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || being_sent_stories_.count(random_id) > 0);
-
-  auto story_ptr = story.get();
-
-  auto pending_story = td::make_unique<PendingStory>(dialog_id, story_id, forward_from_story_full_id,
-                                                     ++send_story_count_, random_id, std::move(story));
-  pending_story->log_event_id_ = save_send_story_log_event(pending_story.get());
-
-  do_send_story(std::move(pending_story), {});
-
-  promise.set_value(get_story_object({dialog_id, story_id}, story_ptr));
-}
-
-class StoryManager::SendStoryLogEvent {
- public:
-  const PendingStory *pending_story_in_;
-  unique_ptr<PendingStory> pending_story_out_;
-
-  SendStoryLogEvent() : pending_story_in_(nullptr) {
-  }
-
-  explicit SendStoryLogEvent(const PendingStory *pending_story) : pending_story_in_(pending_story) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(*pending_story_in_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(pending_story_out_, parser);
-  }
-};
-
-int64 StoryManager::save_send_story_log_event(const PendingStory *pending_story) {
-  if (!G()->use_message_database()) {
-    return 0;
-  }
-
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SendStory,
-                    get_log_event_storer(SendStoryLogEvent(pending_story)));
-}
-
-void StoryManager::do_send_story(unique_ptr<PendingStory> &&pending_story, vector<int> bad_parts) {
-  CHECK(pending_story != nullptr);
-  CHECK(pending_story->story_id_.is_valid());
-  CHECK(pending_story->story_ != nullptr);
-  CHECK(pending_story->story_->content_ != nullptr);
-  CHECK(pending_story->story_id_.is_valid());
-  CHECK(pending_story->file_upload_id_.is_valid());
-
-  auto story_full_id = StoryFullId(pending_story->dialog_id_, pending_story->story_id_);
-  if (bad_parts.empty() && !pending_story->story_id_.is_server()) {
-    auto story = make_unique<Story>();
-    story->sender_dialog_id_ = pending_story->story_->sender_dialog_id_;
-    story->date_ = pending_story->story_->date_;
-    story->expire_date_ = pending_story->story_->expire_date_;
-    story->is_pinned_ = pending_story->story_->is_pinned_;
-    story->is_outgoing_ = true;
-    story->noforwards_ = pending_story->story_->noforwards_;
-    story->privacy_rules_ = pending_story->story_->privacy_rules_;
-    story->content_ = copy_story_content(pending_story->story_->content_.get());
-    story->areas_ = pending_story->story_->areas_;
-    story->caption_ = pending_story->story_->caption_;
-    send_update_story(story_full_id, story.get());
-    stories_.set(story_full_id, std::move(story));
-
-    CHECK(pending_story->dialog_id_.is_valid());
-    CHECK(pending_story->random_id_ != 0);
-    yet_unsent_stories_[pending_story->dialog_id_].insert(pending_story->send_story_num_);
-    yet_unsent_story_ids_[pending_story->dialog_id_].push_back(pending_story->story_id_);
-    being_sent_stories_[pending_story->random_id_] = story_full_id;
-    being_sent_story_random_ids_[story_full_id] = pending_story->random_id_;
-
-    if (!td_->auth_manager_->is_bot()) {
-      auto active_stories = get_active_stories_force(pending_story->dialog_id_, "do_send_story");
-
-      updated_active_stories_.insert(pending_story->dialog_id_);
-      send_update_chat_active_stories(pending_story->dialog_id_, active_stories, "do_send_story");
-      update_story_list_sent_total_count(StoryListId::main(), "do_send_story");
-    }
-  }
-
-  auto file_upload_id = pending_story->file_upload_id_;
-  auto upload_order = pending_story->send_story_num_;
-
-  LOG(INFO) << "Ask to upload story " << file_upload_id << " with bad parts " << bad_parts;
-  if (!pending_story->story_id_.is_server()) {
-    being_uploaded_file_upload_ids_[story_full_id] = file_upload_id;
-  }
-  CHECK(file_upload_id.is_valid());
-  bool is_inserted = being_uploaded_files_.emplace(file_upload_id, std::move(pending_story)).second;
-  CHECK(is_inserted);
-  // need to call resume_upload synchronously to make upload process consistent with being_uploaded_files_
-  // and to send is_uploading_active == true in response
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_media_callback_, 1, upload_order);
-}
-
-void StoryManager::on_upload_story(FileUploadId file_upload_id,
-                                   telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  LOG(INFO) << "Story " << file_upload_id << " has been uploaded";
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto pending_story = std::move(it->second);
-  being_uploaded_files_.erase(it);
-  CHECK(file_upload_id == pending_story->file_upload_id_);
-
-  if (!pending_story->story_id_.is_server()) {
-    being_uploaded_file_upload_ids_.erase({pending_story->dialog_id_, pending_story->story_id_});
-
-    auto deleted_story_it = delete_yet_unsent_story_queries_.find(pending_story->random_id_);
-    if (deleted_story_it != delete_yet_unsent_story_queries_.end()) {
-      auto promises = std::move(deleted_story_it->second);
-      delete_yet_unsent_story_queries_.erase(deleted_story_it);
-      fail_promises(promises, Status::Error(400, "Story upload has been already completed"));
-    }
-  }
-
-  FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  CHECK(!file_view.is_encrypted());
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (input_file == nullptr && main_remote_location != nullptr) {
-    if (main_remote_location->is_web()) {
-      delete_pending_story(std::move(pending_story), Status::Error(400, "Can't use web photo as a story"));
-      return;
-    }
-    if (pending_story->was_reuploaded_) {
-      delete_pending_story(std::move(pending_story), Status::Error(500, "Failed to reupload story"));
-      return;
-    }
-    pending_story->was_reuploaded_ = true;
-
-    // delete file reference and forcely reupload the file
-    td_->file_manager_->delete_file_reference(file_upload_id.get_file_id(), main_remote_location->get_file_reference());
-    do_send_story(std::move(pending_story), {-1});
-    return;
-  }
-  CHECK(input_file != nullptr);
-
-  bool is_edit = pending_story->story_id_.is_server();
-  if (is_edit) {
-    do_edit_story(std::move(pending_story), std::move(input_file));
-  } else {
-    auto dialog_id = pending_story->dialog_id_;
-    auto send_story_num = pending_story->send_story_num_;
-    LOG(INFO) << "Story " << send_story_num << " is ready to be sent";
-    ready_to_send_stories_.emplace(send_story_num,
-                                   td::make_unique<ReadyToSendStory>(std::move(pending_story), std::move(input_file)));
-    try_send_story(dialog_id);
-  }
-}
-
-void StoryManager::on_upload_story_error(FileUploadId file_upload_id, Status status) {
-  if (G()->close_flag()) {
-    // do not fail upload if closing
-    return;
-  }
-
-  LOG(INFO) << "Story " << file_upload_id << " has upload error " << status;
-
-  auto it = being_uploaded_files_.find(file_upload_id);
-  CHECK(it != being_uploaded_files_.end());
-  auto pending_story = std::move(it->second);
-  being_uploaded_files_.erase(it);
-
-  vector<Promise<Unit>> promises;
-  if (!pending_story->story_id_.is_server()) {
-    being_uploaded_file_upload_ids_.erase({pending_story->dialog_id_, pending_story->story_id_});
-
-    auto deleted_story_it = delete_yet_unsent_story_queries_.find(pending_story->random_id_);
-    if (deleted_story_it != delete_yet_unsent_story_queries_.end()) {
-      promises = std::move(deleted_story_it->second);
-      delete_yet_unsent_story_queries_.erase(deleted_story_it);
-      status = Status::Error(406, "Canceled");
-    }
-  }
-
-  delete_pending_story(std::move(pending_story), std::move(status));
-  set_promises(promises);
-}
-
-void StoryManager::try_send_story(DialogId dialog_id) {
-  const auto yet_unsent_story_it = yet_unsent_stories_.find(dialog_id);
-  if (yet_unsent_story_it == yet_unsent_stories_.end()) {
-    LOG(INFO) << "There is no more stories to send in " << dialog_id;
-    return;
-  }
-  CHECK(!yet_unsent_story_it->second.empty());
-  auto send_story_num = *yet_unsent_story_it->second.begin();
-  auto it = ready_to_send_stories_.find(send_story_num);
-  if (it == ready_to_send_stories_.end()) {
-    LOG(INFO) << "Story " << send_story_num << " isn't ready to be sent or is being sent";
-    return;
-  }
-  auto ready_to_send_story = std::move(it->second);
-  ready_to_send_stories_.erase(it);
-
-  td_->create_handler<SendStoryQuery>()->send(std::move(ready_to_send_story->pending_story_),
-                                              std::move(ready_to_send_story->input_file_));
-}
-
-void StoryManager::on_send_story_file_parts_missing(unique_ptr<PendingStory> &&pending_story, vector<int> &&bad_parts) {
-  do_send_story(std::move(pending_story), std::move(bad_parts));
-}
-
-class StoryManager::EditStoryLogEvent {
- public:
-  const PendingStory *pending_story_in_;
-  unique_ptr<PendingStory> pending_story_out_;
-  bool edit_media_areas_;
-  vector<MediaArea> areas_;
-  bool edit_caption_;
-  FormattedText caption_;
-
-  EditStoryLogEvent() : pending_story_in_(nullptr), edit_caption_(false) {
-  }
-
-  EditStoryLogEvent(const PendingStory *pending_story, bool edit_media_areas, vector<MediaArea> areas,
-                    bool edit_caption, const FormattedText &caption)
-      : pending_story_in_(pending_story)
-      , edit_media_areas_(edit_media_areas)
-      , areas_(std::move(areas))
-      , edit_caption_(edit_caption)
-      , caption_(caption) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    bool has_caption = edit_caption_ && !caption_.text.empty();
-    bool has_media_areas = edit_media_areas_ && !areas_.empty();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(edit_caption_);
-    STORE_FLAG(has_caption);
-    STORE_FLAG(edit_media_areas_);
-    STORE_FLAG(has_media_areas);
-    END_STORE_FLAGS();
-    td::store(*pending_story_in_, storer);
-    if (has_caption) {
-      td::store(caption_, storer);
-    }
-    if (has_media_areas) {
-      td::store(areas_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    bool has_caption;
-    bool has_media_areas;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(edit_caption_);
-    PARSE_FLAG(has_caption);
-    PARSE_FLAG(edit_media_areas_);
-    PARSE_FLAG(has_media_areas);
-    END_PARSE_FLAGS();
-    td::parse(pending_story_out_, parser);
-    if (has_caption) {
-      td::parse(caption_, parser);
-    }
-    if (has_media_areas) {
-      td::parse(areas_, parser);
-    }
-  }
-};
-
-void StoryManager::edit_story(DialogId owner_dialog_id, StoryId story_id,
-                              td_api::object_ptr<td_api::InputStoryContent> &&input_story_content,
-                              td_api::object_ptr<td_api::inputStoryAreas> &&input_areas,
-                              td_api::object_ptr<td_api::formattedText> &&input_caption, Promise<Unit> &&promise) {
-  CHECK(!td_->auth_manager_->is_bot());
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr || story->content_ == nullptr) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (!can_edit_story(story_full_id, story)) {
-    return promise.set_error(Status::Error(400, "Story can't be edited"));
-  }
-
-  bool is_bot = td_->auth_manager_->is_bot();
-  unique_ptr<StoryContent> content;
-  bool are_media_areas_edited = input_areas != nullptr;
-  vector<MediaArea> areas;
-  bool is_caption_edited = input_caption != nullptr;
-  FormattedText caption;
-  if (input_story_content != nullptr) {
-    TRY_RESULT_PROMISE_ASSIGN(promise, content,
-                              get_input_story_content(td_, std::move(input_story_content), owner_dialog_id));
-  }
-  if (are_media_areas_edited) {
-    for (auto &input_area : input_areas->areas_) {
-      MediaArea media_area(td_, std::move(input_area), story->areas_);
-      if (media_area.is_valid()) {
-        areas.push_back(std::move(media_area));
-      }
-    }
-    auto *current_areas = &story->areas_;
-    auto it = being_edited_stories_.find(story_full_id);
-    if (it != being_edited_stories_.end() && it->second->edit_media_areas_) {
-      current_areas = &it->second->areas_;
-    }
-    if (*current_areas == areas) {
-      are_media_areas_edited = false;
-    } else if (content == nullptr) {
-      return promise.set_error(Status::Error(400, "Can't edit story areas without content"));
-    }
-  }
-  if (is_caption_edited) {
-    TRY_RESULT_PROMISE_ASSIGN(
-        promise, caption, get_formatted_text(td_, DialogId(), std::move(input_caption), is_bot, true, false, false));
-    if (!td_->option_manager_->get_option_boolean("can_use_text_entities_in_story_caption")) {
-      caption.entities.clear();
-    }
-    auto *current_caption = &story->caption_;
-    auto it = being_edited_stories_.find(story_full_id);
-    if (it != being_edited_stories_.end() && it->second->edit_caption_) {
-      current_caption = &it->second->caption_;
-    }
-    if (*current_caption == caption) {
-      is_caption_edited = false;
-    }
-  }
-  if (content == nullptr && !are_media_areas_edited && !is_caption_edited) {
-    return promise.set_value(Unit());
-  }
-
-  auto &edited_story = being_edited_stories_[story_full_id];
-  if (edited_story == nullptr) {
-    edited_story = make_unique<BeingEditedStory>();
-  }
-  auto &edit_generation = edit_generations_[story_full_id];
-  if (content != nullptr) {
-    edited_story->content_ = std::move(content);
-    edit_generation++;
-  }
-  if (are_media_areas_edited) {
-    edited_story->areas_ = std::move(areas);
-    edited_story->edit_media_areas_ = true;
-    edit_generation++;
-  }
-  if (is_caption_edited) {
-    edited_story->caption_ = std::move(caption);
-    edited_story->edit_caption_ = true;
-    edit_generation++;
-  }
-  edited_story->promises_.push_back(std::move(promise));
-
-  auto new_story = make_unique<Story>();
-  new_story->content_ = copy_story_content(edited_story->content_.get());
-
-  auto pending_story = td::make_unique<PendingStory>(owner_dialog_id, story_id, StoryFullId(),
-                                                     std::numeric_limits<uint32>::max() - (++send_story_count_),
-                                                     edit_generation, std::move(new_story));
-  if (G()->use_message_database()) {
-    EditStoryLogEvent log_event(pending_story.get(), edited_story->edit_media_areas_, edited_story->areas_,
-                                edited_story->edit_caption_, edited_story->caption_);
-    auto storer = get_log_event_storer(log_event);
-    auto &cur_log_event_id = edited_story->log_event_id_;
-    if (cur_log_event_id == 0) {
-      cur_log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::EditStory, storer);
-      LOG(INFO) << "Add edit story log event " << cur_log_event_id;
-    } else {
-      auto new_log_event_id =
-          binlog_rewrite(G()->td_db()->get_binlog(), cur_log_event_id, LogEvent::HandlerType::EditStory, storer);
-      LOG(INFO) << "Rewrite edit story log event " << cur_log_event_id << " with " << new_log_event_id;
-    }
-  }
-
-  on_story_changed(story_full_id, story, true, true);
-
-  if (edited_story->content_ == nullptr) {
-    return do_edit_story(std::move(pending_story), nullptr);
-  }
-
-  do_send_story(std::move(pending_story), {});
-}
-
-void StoryManager::edit_business_story(DialogId owner_dialog_id, StoryId story_id,
-                                       td_api::object_ptr<td_api::InputStoryContent> &&input_story_content,
-                                       td_api::object_ptr<td_api::inputStoryAreas> &&input_areas,
-                                       td_api::object_ptr<td_api::formattedText> &&input_caption,
-                                       td_api::object_ptr<td_api::StoryPrivacySettings> &&settings,
-                                       Promise<td_api::object_ptr<td_api::story>> &&promise) {
-  CHECK(td_->auth_manager_->is_bot());
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  if (!can_edit_story(story_full_id, nullptr)) {
-    return promise.set_error(Status::Error(400, "Story can't be edited"));
-  }
-
-  bool is_bot = true;
-  TRY_RESULT_PROMISE(promise, content, get_input_story_content(td_, std::move(input_story_content), owner_dialog_id));
-  vector<MediaArea> areas;
-  if (input_areas != nullptr) {
-    vector<MediaArea> old_media_areas;
-    for (auto &input_area : input_areas->areas_) {
-      MediaArea media_area(td_, std::move(input_area), old_media_areas);
-      if (media_area.is_valid()) {
-        areas.push_back(std::move(media_area));
-      }
-    }
-  }
-  TRY_RESULT_PROMISE(promise, caption,
-                     get_formatted_text(td_, DialogId(), std::move(input_caption), is_bot, true, false, false));
-  TRY_RESULT_PROMISE(promise, privacy_rules,
-                     UserPrivacySettingRules::get_user_privacy_setting_rules(td_, std::move(settings)));
-
-  auto edit_story_num = ++send_story_count_;
-  if (edit_story_num == 0) {
-    edit_story_num = ++send_story_count_;
-  }
-
-  auto &edited_story = being_edited_business_stories_[edit_story_num];
-  CHECK(edited_story == nullptr);
-  edited_story = make_unique<BeingEditedBusinessStory>();
-  edited_story->content_ = std::move(content);
-  edited_story->areas_ = std::move(areas);
-  edited_story->caption_ = std::move(caption);
-  edited_story->privacy_rules_ = std::move(privacy_rules);
-  edited_story->promise_ = std::move(promise);
-
-  auto new_story = make_unique<Story>();
-  new_story->content_ = copy_story_content(edited_story->content_.get());
-
-  auto pending_story =
-      td::make_unique<PendingStory>(owner_dialog_id, story_id, StoryFullId(), edit_story_num, 0, std::move(new_story));
-
-  do_send_story(std::move(pending_story), {});
-}
-
-void StoryManager::on_edit_business_story(unique_ptr<PendingStory> &&pending_story,
-                                          telegram_api::object_ptr<telegram_api::Updates> updates) {
-  CHECK(pending_story != nullptr);
-  if (pending_story->file_upload_id_.is_valid()) {
-    td_->file_manager_->delete_partial_remote_location(pending_story->file_upload_id_);
-  }
-  auto it = being_edited_business_stories_.find(pending_story->send_story_num_);
-  CHECK(it != being_edited_business_stories_.end());
-  auto promise = std::move(it->second->promise_);
-  being_edited_business_stories_.erase(it);
-
-  td_->updates_manager_->process_updates_users_and_chats(updates.get());
-
-  auto story = UpdatesManager::extract_story(updates.get(), pending_story->dialog_id_);
-  if (story == nullptr) {
-    LOG(ERROR) << "Receive unexpected edit story result: " << to_string(updates);
-    promise.set_error(Status::Error(400, "Failed to edit story"));
-  } else {
-    auto story_id = on_get_story(pending_story->dialog_id_, std::move(story));
-    if (story_id != pending_story->story_id_) {
-      LOG(ERROR) << "Receive unexpected " << story_id << " instead of " << pending_story->story_id_;
-      promise.set_error(Status::Error(400, "Failed to edit story"));
-    } else {
-      promise.set_value(get_story_object({pending_story->dialog_id_, story_id}));
-    }
-    on_delete_story({pending_story->dialog_id_, story_id});
-  }
-}
-
-void StoryManager::do_edit_story(unique_ptr<PendingStory> &&pending_story,
-                                 telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  if (td_->auth_manager_->is_bot()) {
-    CHECK(pending_story->send_story_num_ != 0);
-    auto edited_story = being_edited_business_stories_[pending_story->send_story_num_].get();
-    CHECK(edited_story != nullptr);
-    td_->create_handler<EditBusinessStoryQuery>()->send(std::move(pending_story), std::move(input_file), edited_story);
-    return;
-  }
-  StoryFullId story_full_id{pending_story->dialog_id_, pending_story->story_id_};
-  const Story *story = get_story(story_full_id);
-  auto it = being_edited_stories_.find(story_full_id);
-  if (story == nullptr || it == being_edited_stories_.end() ||
-      edit_generations_[story_full_id] != pending_story->random_id_) {
-    LOG(INFO) << "Skip outdated edit of " << story_full_id;
-    td_->file_manager_->cancel_upload(pending_story->file_upload_id_);
-    return;
-  }
-  td_->create_handler<EditStoryQuery>()->send(std::move(pending_story), std::move(input_file), it->second.get());
-}
-
-void StoryManager::edit_story_cover(DialogId owner_dialog_id, StoryId story_id, double main_frame_timestamp,
-                                    Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr || story->content_ == nullptr) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (!can_edit_story(story_full_id, story)) {
-    return promise.set_error(Status::Error(400, "Story can't be edited"));
-  }
-  if (being_edited_stories_.count(story_full_id) > 0) {
-    return promise.set_error(Status::Error(400, "Story is being edited"));
-  }
-  if (main_frame_timestamp < 0.0) {
-    return promise.set_error(Status::Error(400, "Wrong cover timestamp specified"));
-  }
-  if (story->content_->get_type() != StoryContentType::Video) {
-    return promise.set_error(Status::Error(400, "Cover timestamp can't be edited for the story"));
-  }
-  auto input_media = get_story_content_document_input_media(td_, story->content_.get(), main_frame_timestamp);
-  if (input_media == nullptr) {
-    return promise.set_error(Status::Error(400, "Can't edit story cover"));
-  }
-
-  td_->create_handler<EditStoryCoverQuery>(std::move(promise))
-      ->send(owner_dialog_id, story_id, main_frame_timestamp, get_story_content_any_file_id(story->content_.get()),
-             std::move(input_media));
-}
-
-void StoryManager::delete_pending_story(unique_ptr<PendingStory> &&pending_story, Status status) {
-  if (G()->close_flag() && G()->use_message_database()) {
-    return;
-  }
-
-  CHECK(pending_story != nullptr);
-  if (pending_story->file_upload_id_.is_valid()) {
-    td_->file_manager_->delete_partial_remote_location(pending_story->file_upload_id_);
-  }
-  StoryFullId story_full_id{pending_story->dialog_id_, pending_story->story_id_};
-  const Story *story = get_story(story_full_id);
-  bool is_edit = pending_story->story_id_.is_server();
-  if (is_edit) {
-    if (td_->auth_manager_->is_bot()) {
-      CHECK(status.is_error());
-      auto it = being_edited_business_stories_.find(pending_story->send_story_num_);
-      CHECK(it != being_edited_business_stories_.end());
-      it->second->promise_.set_error(std::move(status));
-      being_edited_business_stories_.erase(it);
-      return;
-    }
-    auto it = being_edited_stories_.find(story_full_id);
-    if (story == nullptr || it == being_edited_stories_.end() ||
-        edit_generations_[story_full_id] != pending_story->random_id_) {
-      LOG(INFO) << "Ignore outdated edit of " << story_full_id;
-      return;
-    }
-    CHECK(story->content_ != nullptr);
-    auto promises = std::move(it->second->promises_);
-    auto log_event_id = it->second->log_event_id_;
-    if (log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    }
-    being_edited_stories_.erase(it);
-
-    on_story_changed(story_full_id, story, true, true);
-
-    if (status.is_ok()) {
-      set_promises(promises);
-    } else {
-      fail_promises(promises, std::move(status));
-    }
-    CHECK(pending_story->log_event_id_ == 0);
-  } else {
-    LOG(INFO) << "Finish sending of story " << pending_story->send_story_num_;
-    if (story != nullptr) {
-      if (status.is_ok()) {
-        LOG(ERROR) << "Failed to receive sent " << story_full_id;
-        status = Status::Error(500, "Failed to receive a sent story");
-      }
-      auto story_object = get_story_object(story_full_id, story);
-      delete_story_files(story);
-      stories_.erase(story_full_id);
-      send_update_chat_active_stories(pending_story->dialog_id_, get_active_stories(pending_story->dialog_id_),
-                                      "delete_pending_story");
-      send_closure(
-          G()->td(), &Td::send_update,
-          td_api::make_object<td_api::updateStorySendFailed>(
-              std::move(story_object), td_api::make_object<td_api::error>(status.code(), status.message().str()),
-              get_can_send_story_result_object(status, true)));
-    }
-    auto it = yet_unsent_stories_.find(pending_story->dialog_id_);
-    CHECK(it != yet_unsent_stories_.end());
-    bool is_deleted = it->second.erase(pending_story->send_story_num_) > 0;
-    CHECK(is_deleted);
-    if (it->second.empty()) {
-      yet_unsent_stories_.erase(it);
-      yet_unsent_story_ids_.erase(pending_story->dialog_id_);
-      update_story_list_sent_total_count(StoryListId::main(), "delete_pending_story");
-    } else {
-      auto story_id_it = yet_unsent_story_ids_.find(pending_story->dialog_id_);
-      CHECK(story_id_it != yet_unsent_story_ids_.end());
-      bool is_story_id_deleted = remove(story_id_it->second, pending_story->story_id_);
-      CHECK(is_story_id_deleted);
-      CHECK(!yet_unsent_story_ids_.empty());
-    }
-    being_sent_stories_.erase(pending_story->random_id_);
-    being_sent_story_random_ids_.erase(story_full_id);
-    try_send_story(pending_story->dialog_id_);
-
-    if (pending_story->log_event_id_ != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), pending_story->log_event_id_);
-    }
-  }
-}
-
-void StoryManager::set_story_privacy_settings(StoryId story_id,
-                                              td_api::object_ptr<td_api::StoryPrivacySettings> &&settings,
-                                              Promise<Unit> &&promise) {
-  DialogId owner_dialog_id(td_->dialog_manager_->get_my_dialog_id());
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr || story->content_ == nullptr) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (!can_edit_story(story_full_id, story)) {
-    return promise.set_error(Status::Error(400, "Story privacy settings can't be edited"));
-  }
-  TRY_RESULT_PROMISE(promise, privacy_rules,
-                     UserPrivacySettingRules::get_user_privacy_setting_rules(td_, std::move(settings)));
-  td_->create_handler<EditStoryPrivacyQuery>(std::move(promise))
-      ->send(owner_dialog_id, story_id, std::move(privacy_rules));
-}
-
-void StoryManager::toggle_story_is_pinned(DialogId owner_dialog_id, StoryId story_id, bool is_pinned,
-                                          Promise<Unit> &&promise) {
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr || story->content_ == nullptr) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (!can_toggle_story_is_pinned(story_full_id, story)) {
-    return promise.set_error(Status::Error(400, "Story can't be pinned/unpinned"));
-  }
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), story_full_id, is_pinned,
-                                               promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      return promise.set_error(result.move_as_error());
-    }
-    send_closure(actor_id, &StoryManager::on_toggle_story_is_pinned, story_full_id, is_pinned, std::move(promise));
-  });
-  td_->create_handler<ToggleStoryPinnedQuery>(std::move(query_promise))->send(owner_dialog_id, story_id, is_pinned);
-}
-
-void StoryManager::on_toggle_story_is_pinned(StoryFullId story_full_id, bool is_pinned, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  Story *story = get_story_editable(story_full_id);
-  if (story != nullptr) {
-    CHECK(story->content_ != nullptr);
-    story->is_pinned_ = is_pinned;
-    on_story_changed(story_full_id, story, true, true);
-  }
-  promise.set_value(Unit());
-}
-
-void StoryManager::delete_story(DialogId owner_dialog_id, StoryId story_id, Promise<Unit> &&promise) {
-  StoryFullId story_full_id{owner_dialog_id, story_id};
-  const Story *story = get_story(story_full_id);
-  if (story == nullptr) {
-    return promise.set_error(Status::Error(400, "Story not found"));
-  }
-  if (!can_delete_story(story_full_id, story)) {
-    return promise.set_error(Status::Error(400, "Story can't be deleted"));
-  }
-  if (!story_id.is_server()) {
-    auto file_upload_id_it = being_uploaded_file_upload_ids_.find(story_full_id);
-    if (file_upload_id_it == being_uploaded_file_upload_ids_.end()) {
-      return promise.set_error(Status::Error(400, "Story upload has been already completed"));
-    }
-    auto file_upload_id = file_upload_id_it->second;
-    auto random_id_it = being_sent_story_random_ids_.find(story_full_id);
-    if (random_id_it == being_sent_story_random_ids_.end()) {
-      return promise.set_error(Status::Error(400, "Story not found"));
-    }
-    int64 random_id = random_id_it->second;
-    CHECK(random_id != 0);
-
-    LOG(INFO) << "Cancel uploading of " << story_full_id;
-
-    send_closure_later(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-
-    delete_yet_unsent_story_queries_[random_id].push_back(std::move(promise));
-    return;
-  }
-
-  delete_story_on_server(story_full_id, 0, std::move(promise));
-}
-
-class StoryManager::DeleteStoryOnServerLogEvent {
- public:
-  StoryFullId story_full_id_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(story_full_id_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(story_full_id_, parser);
-  }
-};
-
-uint64 StoryManager::save_delete_story_on_server_log_event(StoryFullId story_full_id) {
-  DeleteStoryOnServerLogEvent log_event{story_full_id};
-  return binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::DeleteStoryOnServer,
-                    get_log_event_storer(log_event));
-}
-
-void StoryManager::delete_story_on_server(StoryFullId story_full_id, uint64 log_event_id, Promise<Unit> &&promise) {
-  LOG(INFO) << "Delete " << story_full_id << " from server";
-  CHECK(story_full_id.is_server());
-
-  if (log_event_id == 0) {
-    log_event_id = save_delete_story_on_server_log_event(story_full_id);
-  }
-
-  auto new_promise = get_erase_log_event_promise(log_event_id, std::move(promise));
-  promise = std::move(new_promise);  // to prevent self-move
-
-  deleted_story_full_ids_.insert(story_full_id);
-
-  td_->create_handler<DeleteStoriesQuery>(std::move(promise))
-      ->send(story_full_id.get_dialog_id(), {story_full_id.get_story_id()});
-
-  on_delete_story(story_full_id);
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> StoryManager::get_input_media(StoryFullId story_full_id) const {
-  auto dialog_id = story_full_id.get_dialog_id();
-  auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-  if (input_peer == nullptr) {
-    return nullptr;
-  }
-  return telegram_api::make_object<telegram_api::inputMediaStory>(std::move(input_peer),
-                                                                  story_full_id.get_story_id().get());
-}
-
-void StoryManager::remove_story_notifications_by_story_ids(DialogId dialog_id, const vector<StoryId> &story_ids) {
-  VLOG(notifications) << "Trying to remove notification about " << story_ids << " in " << dialog_id;
-  for (auto story_id : story_ids) {
-    if (!story_id.is_server()) {
-      LOG(ERROR) << "Tried to delete " << story_id << " in " << dialog_id;
-      continue;
-    }
-    StoryFullId story_full_id{dialog_id, story_id};
-    if (!have_story_force(story_full_id)) {
-      LOG(INFO) << "Can't delete " << story_full_id << " because it is not found";
-      // call synchronously to remove them before ProcessPush returns
-      // td_->notification_manager_->remove_temporary_notification_by_story_id(
-      //    story_notification_group_id, story_full_id, true, "remove_story_notifications_by_story_ids");
-      continue;
-    }
-    on_delete_story(story_full_id);
-  }
-}
-
-void StoryManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  active_stories_.foreach([&](const DialogId &dialog_id, const unique_ptr<ActiveStories> &active_stories) {
-    if (updated_active_stories_.count(dialog_id) > 0) {
-      updates.push_back(get_update_chat_active_stories_object(dialog_id, active_stories.get()));
-    }
-  });
-  if (!td_->auth_manager_->is_bot()) {
-    for (auto story_list_id : {StoryListId::main(), StoryListId::archive()}) {
-      const auto &story_list = get_story_list(story_list_id);
-      if (story_list.sent_total_count_ != -1) {
-        updates.push_back(get_update_story_list_chat_count_object(story_list_id, story_list));
-      }
-    }
-
-    updates.push_back(get_update_story_stealth_mode());
-  }
-}
-
-void StoryManager::on_binlog_events(vector<BinlogEvent> &&events) {
-  if (G()->close_flag()) {
-    return;
-  }
-  bool have_old_message_database = G()->use_message_database() && !G()->td_db()->was_dialog_db_created();
-  for (auto &event : events) {
-    CHECK(event.id_ != 0);
-    switch (event.type_) {
-      case LogEvent::HandlerType::DeleteStoryOnServer: {
-        DeleteStoryOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto owner_dialog_id = log_event.story_full_id_.get_dialog_id();
-        td_->dialog_manager_->have_dialog_force(owner_dialog_id, "DeleteStoryOnServerLogEvent");
-        delete_story_on_server(log_event.story_full_id_, event.id_, Auto());
-        break;
-      }
-      case LogEvent::HandlerType::ReadStoriesOnServer: {
-        ReadStoriesOnServerLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto owner_dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(owner_dialog_id, "ReadStoriesOnServerLogEvent")) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        auto max_read_story_id = log_event.max_story_id_;
-        auto active_stories = get_active_stories_force(owner_dialog_id, "ReadStoriesOnServerLogEvent");
-        if (active_stories == nullptr) {
-          max_read_story_ids_[owner_dialog_id] = max_read_story_id;
-          on_update_dialog_max_read_story_id(owner_dialog_id, max_read_story_id);
-        } else {
-          auto story_ids = active_stories->story_ids_;
-          on_update_active_stories(owner_dialog_id, max_read_story_id, std::move(story_ids), Promise<Unit>(),
-                                   "ReadStoriesOnServerLogEvent");
-        }
-        read_stories_on_server(owner_dialog_id, max_read_story_id, event.id_);
-        break;
-      }
-      case LogEvent::HandlerType::LoadDialogExpiringStories: {
-        LoadDialogExpiringStoriesLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto owner_dialog_id = log_event.dialog_id_;
-        if (!td_->dialog_manager_->have_dialog_force(owner_dialog_id, "LoadDialogExpiringStoriesLogEvent")) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        load_dialog_expiring_stories(owner_dialog_id, event.id_, "LoadDialogExpiringStoriesLogEvent");
-        break;
-      }
-      case LogEvent::HandlerType::SendStory: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        SendStoryLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto pending_story = std::move(log_event.pending_story_out_);
-        pending_story->log_event_id_ = event.id_;
-
-        CHECK(pending_story->story_->content_ != nullptr);
-        if (pending_story->story_->content_->get_type() == StoryContentType::Unsupported) {
-          LOG(ERROR) << "Sent story content is invalid: " << format::as_hex_dump<4>(event.get_data());
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        Dependencies dependencies;
-        add_pending_story_dependencies(dependencies, pending_story.get());
-        if (!dependencies.resolve_force(td_, "SendStoryLogEvent")) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        ++send_story_count_;
-        CHECK(!pending_story->story_id_.is_server());
-        pending_story->story_id_ = get_next_yet_unsent_story_id(pending_story->dialog_id_).move_as_ok();
-        pending_story->send_story_num_ = send_story_count_;
-        do_send_story(std::move(pending_story), {});
-        break;
-      }
-      case LogEvent::HandlerType::EditStory: {
-        if (!have_old_message_database) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        EditStoryLogEvent log_event;
-        log_event_parse(log_event, event.get_data()).ensure();
-
-        auto pending_story = std::move(log_event.pending_story_out_);
-        CHECK(pending_story->story_id_.is_server());
-        StoryFullId story_full_id{pending_story->dialog_id_, pending_story->story_id_};
-        const Story *story = get_story_force(story_full_id, "EditStoryLogEvent");
-        if (story == nullptr || story->content_ == nullptr) {
-          LOG(INFO) << "Failed to find " << story_full_id;
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        if (pending_story->story_->content_ != nullptr &&
-            pending_story->story_->content_->get_type() == StoryContentType::Unsupported) {
-          LOG(ERROR) << "Sent story content is invalid: " << format::as_hex_dump<4>(event.get_data());
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        Dependencies dependencies;
-        add_pending_story_dependencies(dependencies, pending_story.get());
-        if (!dependencies.resolve_force(td_, "EditStoryLogEvent")) {
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-
-        auto &edited_story = being_edited_stories_[story_full_id];
-        if (edited_story != nullptr) {
-          LOG(INFO) << "Ignore outdated edit of " << story_full_id;
-          binlog_erase(G()->td_db()->get_binlog(), event.id_);
-          break;
-        }
-        edited_story = make_unique<BeingEditedStory>();
-        edited_story->content_ = copy_story_content(pending_story->story_->content_.get());
-        if (log_event.edit_media_areas_) {
-          edited_story->areas_ = std::move(log_event.areas_);
-          edited_story->edit_media_areas_ = true;
-        }
-        if (log_event.edit_caption_) {
-          edited_story->caption_ = std::move(log_event.caption_);
-          edited_story->edit_caption_ = true;
-        }
-        edited_story->log_event_id_ = event.id_;
-
-        ++send_story_count_;
-        pending_story->send_story_num_ = std::numeric_limits<uint32>::max() - send_story_count_;
-        pending_story->random_id_ = ++edit_generations_[story_full_id];
-
-        if (edited_story->content_ == nullptr) {
-          do_edit_story(std::move(pending_story), nullptr);
-        } else {
-          do_send_story(std::move(pending_story), {});
-        }
-        break;
-      }
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryManager.h b/third-party/td/td/td/telegram/StoryManager.h
deleted file mode 100644
index 7f8a770e55..0000000000
--- a/third-party/td/td/td/telegram/StoryManager.h
+++ /dev/null
@@ -1,775 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogDate.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/MediaArea.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/QuickReplyMessageFullId.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/StoryDb.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/StoryInteractionInfo.h"
-#include "td/telegram/StoryListId.h"
-#include "td/telegram/StoryStealthMode.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/UserPrivacySettingRule.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeHashSet.h"
-
-#include <memory>
-#include <set>
-#include <utility>
-
-namespace td {
-
-struct BinlogEvent;
-class Dependencies;
-class StoryContent;
-class StoryForwardInfo;
-struct StoryDbStory;
-class Td;
-
-class StoryManager final : public Actor {
-  struct Story {
-    DialogId sender_dialog_id_;
-    int32 date_ = 0;
-    int32 expire_date_ = 0;
-    int32 receive_date_ = 0;
-    bool is_edited_ = false;
-    bool is_pinned_ = false;
-    bool is_public_ = false;
-    bool is_for_close_friends_ = false;
-    bool is_for_contacts_ = false;
-    bool is_for_selected_contacts_ = false;
-    bool is_outgoing_ = false;
-    bool noforwards_ = false;
-    mutable bool is_update_sent_ = false;  // whether the story is known to the app
-    unique_ptr<StoryForwardInfo> forward_info_;
-    StoryInteractionInfo interaction_info_;
-    ReactionType chosen_reaction_type_;
-    UserPrivacySettingRules privacy_rules_;
-    unique_ptr<StoryContent> content_;
-    vector<MediaArea> areas_;
-    FormattedText caption_;
-    int64 global_id_ = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct StoryInfo {
-    StoryId story_id_;
-    int32 date_ = 0;
-    int32 expire_date_ = 0;
-    bool is_for_close_friends_ = false;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct BeingEditedStory {
-    unique_ptr<StoryContent> content_;
-    vector<MediaArea> areas_;
-    FormattedText caption_;
-    bool edit_media_areas_ = false;
-    bool edit_caption_ = false;
-    vector<Promise<Unit>> promises_;
-    int64 log_event_id_ = 0;
-  };
-
-  struct BeingEditedBusinessStory {
-    unique_ptr<StoryContent> content_;
-    vector<MediaArea> areas_;
-    FormattedText caption_;
-    UserPrivacySettingRules privacy_rules_;
-    Promise<td_api::object_ptr<td_api::story>> promise_;
-  };
-
-  struct PendingStory {
-    DialogId dialog_id_;
-    StoryId story_id_;
-    StoryFullId forward_from_story_full_id_;
-    FileUploadId file_upload_id_;
-    uint64 log_event_id_ = 0;
-    uint32 send_story_num_ = 0;
-    int64 random_id_ = 0;
-    bool was_reuploaded_ = false;
-    unique_ptr<Story> story_;
-
-    PendingStory() = default;
-
-    PendingStory(DialogId dialog_id, StoryId story_id, StoryFullId forward_from_story_full_id, uint32 send_story_num,
-                 int64 random_id, unique_ptr<Story> &&story);
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct ReadyToSendStory {
-    unique_ptr<PendingStory> pending_story_;
-    telegram_api::object_ptr<telegram_api::InputFile> input_file_;
-
-    ReadyToSendStory(unique_ptr<PendingStory> &&pending_story,
-                     telegram_api::object_ptr<telegram_api::InputFile> &&input_file);
-  };
-
-  struct PendingStoryViews {
-    FlatHashSet<StoryId, StoryIdHash> story_ids_;
-    bool has_query_ = false;
-  };
-
-  struct ActiveStories {
-    StoryId max_read_story_id_;
-    vector<StoryId> story_ids_;
-    StoryListId story_list_id_;
-    int64 private_order_ = 0;
-    int64 public_order_ = 0;
-  };
-
-  struct SavedActiveStories {
-    StoryId max_read_story_id_;
-    vector<StoryInfo> story_infos_;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct StoryList {
-    int32 server_total_count_ = -1;
-    int32 sent_total_count_ = -1;
-    string state_;
-
-    bool is_reloaded_server_total_count_ = false;
-    bool server_has_more_ = true;
-    bool database_has_more_ = false;
-
-    vector<Promise<Unit>> load_list_from_server_queries_;
-    vector<Promise<Unit>> load_list_from_database_queries_;
-
-    std::set<DialogDate> ordered_stories_;  // all known active stories from the story list
-
-    DialogDate last_loaded_database_dialog_date_ = MIN_DIALOG_DATE;  // in memory
-    DialogDate list_last_story_date_ = MIN_DIALOG_DATE;              // in memory
-  };
-
-  struct SavedStoryList {
-    string state_;
-    int32 total_count_ = -1;
-    bool has_more_ = true;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
- public:
-  StoryManager(Td *td, ActorShared<> parent);
-  StoryManager(const StoryManager &) = delete;
-  StoryManager &operator=(const StoryManager &) = delete;
-  StoryManager(StoryManager &&) = delete;
-  StoryManager &operator=(StoryManager &&) = delete;
-  ~StoryManager() final;
-
-  void get_story(DialogId owner_dialog_id, StoryId story_id, bool only_local,
-                 Promise<td_api::object_ptr<td_api::story>> &&promise);
-
-  void get_dialogs_to_send_stories(Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void reload_dialogs_to_send_stories(Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  void on_get_dialogs_to_send_stories(vector<tl_object_ptr<telegram_api::Chat>> &&chats);
-
-  void update_dialogs_to_send_stories(ChannelId channel_id, bool can_send_stories);
-
-  void can_send_story(DialogId dialog_id, Promise<td_api::object_ptr<td_api::CanSendStoryResult>> &&promise);
-
-  void send_story(DialogId dialog_id, td_api::object_ptr<td_api::InputStoryContent> &&input_story_content,
-                  td_api::object_ptr<td_api::inputStoryAreas> &&input_areas,
-                  td_api::object_ptr<td_api::formattedText> &&input_caption,
-                  td_api::object_ptr<td_api::StoryPrivacySettings> &&settings, int32 active_period,
-                  td_api::object_ptr<td_api::storyFullId> &&from_story_full_id, bool is_pinned, bool protect_content,
-                  Promise<td_api::object_ptr<td_api::story>> &&promise);
-
-  void on_send_story_file_parts_missing(unique_ptr<PendingStory> &&pending_story, vector<int> &&bad_parts);
-
-  void edit_story(DialogId owner_dialog_id, StoryId story_id,
-                  td_api::object_ptr<td_api::InputStoryContent> &&input_story_content,
-                  td_api::object_ptr<td_api::inputStoryAreas> &&input_areas,
-                  td_api::object_ptr<td_api::formattedText> &&input_caption, Promise<Unit> &&promise);
-
-  void edit_business_story(DialogId owner_dialog_id, StoryId story_id,
-                           td_api::object_ptr<td_api::InputStoryContent> &&input_story_content,
-                           td_api::object_ptr<td_api::inputStoryAreas> &&input_areas,
-                           td_api::object_ptr<td_api::formattedText> &&input_caption,
-                           td_api::object_ptr<td_api::StoryPrivacySettings> &&settings,
-                           Promise<td_api::object_ptr<td_api::story>> &&promise);
-
-  void edit_story_cover(DialogId owner_dialog_id, StoryId story_id, double main_frame_timestamp,
-                        Promise<Unit> &&promise);
-
-  void set_story_privacy_settings(StoryId story_id, td_api::object_ptr<td_api::StoryPrivacySettings> &&settings,
-                                  Promise<Unit> &&promise);
-
-  void toggle_story_is_pinned(DialogId owner_dialog_id, StoryId story_id, bool is_pinned, Promise<Unit> &&promise);
-
-  void delete_story(DialogId owner_dialog_id, StoryId story_id, Promise<Unit> &&promise);
-
-  void load_active_stories(StoryListId story_list_id, Promise<Unit> &&promise);
-
-  void reload_active_stories();
-
-  void reload_all_read_stories();
-
-  void toggle_dialog_stories_hidden(DialogId dialog_id, StoryListId story_list_id, Promise<Unit> &&promise);
-
-  void get_dialog_pinned_stories(DialogId owner_dialog_id, StoryId from_story_id, int32 limit,
-                                 Promise<td_api::object_ptr<td_api::stories>> &&promise);
-
-  void get_story_archive(DialogId owner_dialog_id, StoryId from_story_id, int32 limit,
-                         Promise<td_api::object_ptr<td_api::stories>> &&promise);
-
-  void get_dialog_expiring_stories(DialogId owner_dialog_id,
-                                   Promise<td_api::object_ptr<td_api::chatActiveStories>> &&promise);
-
-  void reload_dialog_expiring_stories(DialogId dialog_id);
-
-  void search_hashtag_posts(DialogId dialog_id, string hashtag, string offset, int32 limit,
-                            Promise<td_api::object_ptr<td_api::foundStories>> &&promise);
-
-  void search_location_posts(td_api::object_ptr<td_api::locationAddress> &&address, string offset, int32 limit,
-                             Promise<td_api::object_ptr<td_api::foundStories>> &&promise);
-
-  void search_venue_posts(string venue_provider, string venue_id, string offset, int32 limit,
-                          Promise<td_api::object_ptr<td_api::foundStories>> &&promise);
-
-  void set_pinned_stories(DialogId owner_dialog_id, vector<StoryId> story_ids, Promise<Unit> &&promise);
-
-  void open_story(DialogId owner_dialog_id, StoryId story_id, Promise<Unit> &&promise);
-
-  void close_story(DialogId owner_dialog_id, StoryId story_id, Promise<Unit> &&promise);
-
-  void view_story_message(StoryFullId story_full_id);
-
-  void on_story_replied(StoryFullId story_full_id, UserId replier_user_id);
-
-  void set_story_reaction(StoryFullId story_full_id, ReactionType reaction_type, bool add_to_recent,
-                          Promise<Unit> &&promise);
-
-  void get_story_interactions(StoryId story_id, const string &query, bool only_contacts, bool prefer_forwards,
-                              bool prefer_with_reaction, const string &offset, int32 limit,
-                              Promise<td_api::object_ptr<td_api::storyInteractions>> &&promise);
-
-  void get_dialog_story_interactions(StoryFullId story_full_id, ReactionType reaction_type, bool prefer_forwards,
-                                     const string &offset, int32 limit,
-                                     Promise<td_api::object_ptr<td_api::storyInteractions>> &&promise);
-
-  void get_channel_differences_if_needed(
-      telegram_api::object_ptr<telegram_api::stories_storyViewsList> &&story_views,
-      Promise<telegram_api::object_ptr<telegram_api::stories_storyViewsList>> promise);
-
-  void get_channel_differences_if_needed(
-      telegram_api::object_ptr<telegram_api::stories_storyReactionsList> &&story_reactions,
-      Promise<telegram_api::object_ptr<telegram_api::stories_storyReactionsList>> promise);
-
-  void report_story(StoryFullId story_full_id, const string &option_id, const string &text,
-                    Promise<td_api::object_ptr<td_api::ReportStoryResult>> &&promise);
-
-  void activate_stealth_mode(Promise<Unit> &&promise);
-
-  void remove_story_notifications_by_story_ids(DialogId dialog_id, const vector<StoryId> &story_ids);
-
-  StoryId on_get_story(DialogId owner_dialog_id, telegram_api::object_ptr<telegram_api::StoryItem> &&story_item_ptr);
-
-  std::pair<int32, vector<StoryId>> on_get_stories(DialogId owner_dialog_id, vector<StoryId> &&expected_story_ids,
-                                                   telegram_api::object_ptr<telegram_api::stories_stories> &&stories);
-
-  DialogId on_get_dialog_stories(DialogId owner_dialog_id,
-                                 telegram_api::object_ptr<telegram_api::peerStories> &&peer_stories,
-                                 Promise<Unit> &&promise);
-
-  void on_update_story_id(int64 random_id, StoryId new_story_id, const char *source);
-
-  bool on_update_read_stories(DialogId owner_dialog_id, StoryId max_read_story_id);
-
-  void on_update_story_stealth_mode(telegram_api::object_ptr<telegram_api::storiesStealthMode> &&stealth_mode);
-
-  void on_update_story_chosen_reaction_type(DialogId owner_dialog_id, StoryId story_id,
-                                            ReactionType chosen_reaction_type);
-
-  void on_update_dialog_stories_hidden(DialogId owner_dialog_id, bool stories_hidden);
-
-  void on_dialog_active_stories_order_updated(DialogId owner_dialog_id, const char *source);
-
-  Status can_get_story_viewers(StoryFullId story_full_id, const Story *story, int32 unix_time) const;
-
-  bool has_unexpired_viewers(StoryFullId story_full_id, const Story *story) const;
-
-  void on_get_story_views(DialogId owner_dialog_id, const vector<StoryId> &story_ids,
-                          telegram_api::object_ptr<telegram_api::stories_storyViews> &&story_views);
-
-  void on_view_dialog_active_stories(vector<DialogId> dialog_ids);
-
-  void on_get_dialog_max_active_story_ids(const vector<DialogId> &dialog_ids, const vector<int32> &max_story_ids);
-
-  bool have_story(StoryFullId story_full_id) const;
-
-  bool have_story_force(StoryFullId story_full_id);
-
-  int32 get_story_date(StoryFullId story_full_id);
-
-  bool can_get_story_statistics(StoryFullId story_full_id);
-
-  bool is_inaccessible_story(StoryFullId story_full_id) const;
-
-  int32 get_story_duration(StoryFullId story_full_id) const;
-
-  void register_story(StoryFullId story_full_id, MessageFullId message_full_id,
-                      QuickReplyMessageFullId quick_reply_message_full_id, const char *source);
-
-  void unregister_story(StoryFullId story_full_id, MessageFullId message_full_id,
-                        QuickReplyMessageFullId quick_reply_message_full_id, const char *source);
-
-  td_api::object_ptr<td_api::story> get_story_object(StoryFullId story_full_id) const;
-
-  td_api::object_ptr<td_api::stories> get_stories_object(int32 total_count, const vector<StoryFullId> &story_full_ids,
-                                                         const vector<StoryId> &pinned_story_ids) const;
-
-  static td_api::object_ptr<td_api::CanSendStoryResult> get_can_send_story_result_object(const Status &error,
-                                                                                         bool force = false);
-
-  FileSourceId get_story_file_source_id(StoryFullId story_full_id);
-
-  telegram_api::object_ptr<telegram_api::InputMedia> get_input_media(StoryFullId story_full_id) const;
-
-  void reload_story(StoryFullId story_full_id, Promise<Unit> &&promise, const char *source);
-
-  void try_synchronize_archive_all_stories();
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
-  void on_binlog_events(vector<BinlogEvent> &&events);
-
- private:
-  class UploadMediaCallback;
-
-  class SendStoryQuery;
-  class EditStoryQuery;
-  class EditBusinessStoryQuery;
-
-  class DeleteStoryOnServerLogEvent;
-  class ReadStoriesOnServerLogEvent;
-  class LoadDialogExpiringStoriesLogEvent;
-  class SendStoryLogEvent;
-  class EditStoryLogEvent;
-
-  static constexpr int32 MAX_SEARCH_STORIES = 100;  // server-side limit
-
-  static constexpr int32 OPENED_STORY_POLL_PERIOD = 60;
-  static constexpr int32 VIEWED_STORY_POLL_PERIOD = 300;
-
-  static constexpr int32 DEFAULT_LOADED_EXPIRED_STORIES = 50;
-
-  void start_up() final;
-
-  void timeout_expired() final;
-
-  void hangup() final;
-
-  void tear_down() final;
-
-  static void on_story_reload_timeout_callback(void *story_manager_ptr, int64 story_global_id);
-
-  void on_story_reload_timeout(int64 story_global_id);
-
-  static void on_story_expire_timeout_callback(void *story_manager_ptr, int64 story_global_id);
-
-  void on_story_expire_timeout(int64 story_global_id);
-
-  static void on_story_can_get_viewers_timeout_callback(void *story_manager_ptr, int64 story_global_id);
-
-  void on_story_can_get_viewers_timeout(int64 story_global_id);
-
-  bool is_my_story(DialogId owner_dialog_id) const;
-
-  bool can_access_expired_story(DialogId owner_dialog_id, const Story *story) const;
-
-  bool can_get_story_statistics(StoryFullId story_full_id, const Story *story) const;
-
-  bool can_get_story_view_count(DialogId owner_dialog_id);
-
-  bool can_post_stories(DialogId owner_dialog_id) const;
-
-  bool can_edit_stories(DialogId owner_dialog_id) const;
-
-  bool can_delete_stories(DialogId owner_dialog_id) const;
-
-  bool can_edit_story(StoryFullId story_full_id, const Story *story) const;
-
-  bool can_toggle_story_is_pinned(StoryFullId story_full_id, const Story *story) const;
-
-  bool can_delete_story(StoryFullId story_full_id, const Story *story) const;
-
-  int32 get_story_viewers_expire_date(const Story *story) const;
-
-  static bool is_active_story(const Story *story);
-
-  DialogId get_changelog_story_dialog_id() const;
-
-  bool is_subscribed_to_dialog_stories(DialogId owner_dialog_id) const;
-
-  StoryListId get_dialog_story_list_id(DialogId owner_dialog_id) const;
-
-  void add_story_dependencies(Dependencies &dependencies, const Story *story);
-
-  void add_pending_story_dependencies(Dependencies &dependencies, const PendingStory *pending_story);
-
-  const Story *get_story(StoryFullId story_full_id) const;
-
-  Story *get_story_editable(StoryFullId story_full_id);
-
-  Story *get_story_force(StoryFullId story_full_id, const char *source);
-
-  unique_ptr<Story> parse_story(StoryFullId story_full_id, const BufferSlice &value);
-
-  Story *on_get_story_from_database(StoryFullId story_full_id, const BufferSlice &value, const char *source);
-
-  const ActiveStories *get_active_stories(DialogId owner_dialog_id) const;
-
-  ActiveStories *get_active_stories_editable(DialogId owner_dialog_id);
-
-  ActiveStories *get_active_stories_force(DialogId owner_dialog_id, const char *source);
-
-  ActiveStories *on_get_active_stories_from_database(StoryListId story_list_id, DialogId owner_dialog_id,
-                                                     const BufferSlice &value, const char *source);
-
-  void set_story_expire_timeout(const Story *story);
-
-  void set_story_can_get_viewers_timeout(const Story *story);
-
-  void on_story_changed(StoryFullId story_full_id, const Story *story, bool is_changed, bool need_save_to_database,
-                        bool from_database = false);
-
-  void register_story_global_id(StoryFullId story_full_id, Story *story);
-
-  void unregister_story_global_id(const Story *story);
-
-  StoryId on_get_story_info(DialogId owner_dialog_id, StoryInfo &&story_info);
-
-  StoryInfo get_story_info(StoryFullId story_full_id) const;
-
-  td_api::object_ptr<td_api::storyInfo> get_story_info_object(StoryFullId story_full_id) const;
-
-  td_api::object_ptr<td_api::story> get_story_object(StoryFullId story_full_id, const Story *story) const;
-
-  td_api::object_ptr<td_api::chatActiveStories> get_chat_active_stories_object(
-      DialogId owner_dialog_id, const ActiveStories *active_stories) const;
-
-  StoryId on_get_new_story(DialogId owner_dialog_id, telegram_api::object_ptr<telegram_api::storyItem> &&story_item);
-
-  StoryId on_get_skipped_story(DialogId owner_dialog_id,
-                               telegram_api::object_ptr<telegram_api::storyItemSkipped> &&story_item);
-
-  StoryId on_get_deleted_story(DialogId owner_dialog_id,
-                               telegram_api::object_ptr<telegram_api::storyItemDeleted> &&story_item);
-
-  void on_delete_story(StoryFullId story_full_id);
-
-  void return_dialogs_to_send_stories(Promise<td_api::object_ptr<td_api::chats>> &&promise,
-                                      const vector<ChannelId> &channel_ids);
-
-  void finish_get_dialogs_to_send_stories(Result<Unit> &&result);
-
-  void save_channels_to_send_stories();
-
-  void on_get_dialog_pinned_stories(DialogId owner_dialog_id,
-                                    telegram_api::object_ptr<telegram_api::stories_stories> &&stories,
-                                    Promise<td_api::object_ptr<td_api::stories>> &&promise);
-
-  void on_get_story_archive(DialogId owner_dialog_id, telegram_api::object_ptr<telegram_api::stories_stories> &&stories,
-                            Promise<td_api::object_ptr<td_api::stories>> &&promise);
-
-  void on_get_dialog_expiring_stories(DialogId owner_dialog_id,
-                                      telegram_api::object_ptr<telegram_api::stories_peerStories> &&stories,
-                                      Promise<td_api::object_ptr<td_api::chatActiveStories>> &&promise);
-
-  static uint64 save_load_dialog_expiring_stories_log_event(DialogId owner_dialog_id);
-
-  void load_dialog_expiring_stories(DialogId owner_dialog_id, uint64 log_event_id, const char *source);
-
-  void on_load_dialog_expiring_stories(DialogId owner_dialog_id);
-
-  void on_load_active_stories_from_database(StoryListId story_list_id, Result<StoryDbGetActiveStoryListResult> result);
-
-  void load_active_stories_from_server(StoryListId story_list_id, StoryList &story_list, bool is_next,
-                                       Promise<Unit> &&promise);
-
-  void on_load_active_stories_from_server(
-      StoryListId story_list_id, bool is_next, string old_state,
-      Result<telegram_api::object_ptr<telegram_api::stories_AllStories>> r_all_stories);
-
-  void save_story_list(StoryListId story_list_id, string state, int32 total_count, bool has_more);
-
-  StoryList &get_story_list(StoryListId story_list_id);
-
-  const StoryList &get_story_list(StoryListId story_list_id) const;
-
-  td_api::object_ptr<td_api::updateStoryListChatCount> get_update_story_list_chat_count_object(
-      StoryListId story_list_id, const StoryList &story_list) const;
-
-  void update_story_list_sent_total_count(StoryListId story_list_id, const char *source);
-
-  void update_story_list_sent_total_count(StoryListId story_list_id, StoryList &story_list, const char *source);
-
-  vector<FileId> get_story_file_ids(const Story *story) const;
-
-  static uint64 save_delete_story_on_server_log_event(StoryFullId story_full_id);
-
-  void delete_story_on_server(StoryFullId story_full_id, uint64 log_event_id, Promise<Unit> &&promise);
-
-  void delete_story_from_database(StoryFullId story_full_id);
-
-  void delete_story_files(const Story *story) const;
-
-  void change_story_files(StoryFullId story_full_id, const Story *story, const vector<FileId> &old_file_ids);
-
-  void do_get_story(StoryFullId story_full_id, Result<Unit> &&result,
-                    Promise<td_api::object_ptr<td_api::story>> &&promise);
-
-  void on_reload_story(StoryFullId story_full_id, Result<Unit> &&result);
-
-  int64 save_send_story_log_event(const PendingStory *pending_story);
-
-  void delete_pending_story(unique_ptr<PendingStory> &&pending_story, Status status);
-
-  Result<StoryId> get_next_yet_unsent_story_id(DialogId dialog_id);
-
-  void do_send_story(unique_ptr<PendingStory> &&pending_story, vector<int> bad_parts);
-
-  void on_upload_story(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_story_error(FileUploadId file_upload_id, Status status);
-
-  void try_send_story(DialogId dialog_id);
-
-  void do_edit_story(unique_ptr<PendingStory> &&pending_story,
-                     telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_edit_business_story(unique_ptr<PendingStory> &&pending_story,
-                              telegram_api::object_ptr<telegram_api::Updates> updates);
-
-  void on_toggle_story_is_pinned(StoryFullId story_full_id, bool is_pinned, Promise<Unit> &&promise);
-
-  void on_update_dialog_max_story_ids(DialogId owner_dialog_id, StoryId max_story_id, StoryId max_read_story_id);
-
-  void on_update_dialog_max_read_story_id(DialogId owner_dialog_id, StoryId max_read_story_id);
-
-  void on_update_dialog_has_pinned_stories(DialogId owner_dialog_id, bool has_pinned_stories);
-
-  void update_active_stories(DialogId owner_dialog_id);
-
-  void on_update_active_stories(DialogId owner_dialog_id, StoryId max_read_story_id, vector<StoryId> &&story_ids,
-                                Promise<Unit> &&promise, const char *source, bool from_database = false);
-
-  bool update_active_stories_order(DialogId owner_dialog_id, ActiveStories *active_stories,
-                                   bool *need_save_to_database);
-
-  void delete_active_stories_from_story_list(DialogId owner_dialog_id, const ActiveStories *active_stories);
-
-  void send_update_story(StoryFullId story_full_id, const Story *story);
-
-  td_api::object_ptr<td_api::updateChatActiveStories> get_update_chat_active_stories_object(
-      DialogId owner_dialog_id, const ActiveStories *active_stories) const;
-
-  void send_update_chat_active_stories(DialogId owner_dialog_id, const ActiveStories *active_stories,
-                                       const char *source);
-
-  void save_active_stories(DialogId owner_dialog_id, const ActiveStories *active_stories, Promise<Unit> &&promise,
-                           const char *source) const;
-
-  void increment_story_views(DialogId owner_dialog_id, PendingStoryViews &story_views);
-
-  void on_increment_story_views(DialogId owner_dialog_id);
-
-  static uint64 save_read_stories_on_server_log_event(DialogId dialog_id, StoryId max_story_id);
-
-  void read_stories_on_server(DialogId owner_dialog_id, StoryId story_id, uint64 log_event_id);
-
-  static bool has_suggested_reaction(const Story *story, const ReactionType &reaction_type);
-
-  bool can_use_story_reaction(const Story *story, const ReactionType &reaction_type) const;
-
-  void on_story_chosen_reaction_changed(StoryFullId story_full_id, Story *story, const ReactionType &reaction_type);
-
-  void schedule_interaction_info_update();
-
-  static void update_interaction_info_static(void *story_manager);
-
-  void update_interaction_info();
-
-  void on_synchronized_archive_all_stories(bool set_archive_all_stories, Result<Unit> result);
-
-  td_api::object_ptr<td_api::updateStoryStealthMode> get_update_story_stealth_mode() const;
-
-  void send_update_story_stealth_mode() const;
-
-  void schedule_stealth_mode_update();
-
-  static void update_stealth_mode_static(void *story_manager);
-
-  void update_stealth_mode();
-
-  static string get_story_stealth_mode_key();
-
-  void set_story_stealth_mode(StoryStealthMode stealth_mode);
-
-  void on_get_story_interactions(StoryId story_id, bool is_full, bool is_first,
-                                 Result<telegram_api::object_ptr<telegram_api::stories_storyViewsList>> r_view_list,
-                                 Promise<td_api::object_ptr<td_api::storyInteractions>> &&promise);
-
-  void on_get_dialog_story_interactions(
-      StoryFullId story_full_id,
-      Result<telegram_api::object_ptr<telegram_api::stories_storyReactionsList>> r_reaction_list,
-      Promise<td_api::object_ptr<td_api::storyInteractions>> &&promise);
-
-  void on_set_story_reaction(StoryFullId story_full_id, Result<Unit> &&result, Promise<Unit> &&promise);
-
-  void load_expired_database_stories();
-
-  void on_load_expired_database_stories(vector<StoryDbStory> stories);
-
-  std::shared_ptr<UploadMediaCallback> upload_media_callback_;
-
-  WaitFreeHashMap<StoryFullId, FileSourceId, StoryFullIdHash> story_full_id_to_file_source_id_;
-
-  WaitFreeHashMap<StoryFullId, unique_ptr<Story>, StoryFullIdHash> stories_;
-
-  WaitFreeHashMap<int64, StoryFullId> stories_by_global_id_;
-
-  WaitFreeHashMap<StoryFullId, double, StoryFullIdHash> inaccessible_story_full_ids_;
-
-  WaitFreeHashSet<StoryFullId, StoryFullIdHash> deleted_story_full_ids_;
-
-  WaitFreeHashSet<StoryFullId, StoryFullIdHash> failed_to_load_story_full_ids_;
-
-  WaitFreeHashMap<StoryFullId, WaitFreeHashSet<MessageFullId, MessageFullIdHash>, StoryFullIdHash> story_messages_;
-
-  WaitFreeHashMap<StoryFullId, WaitFreeHashSet<QuickReplyMessageFullId, QuickReplyMessageFullIdHash>, StoryFullIdHash>
-      story_quick_reply_messages_;
-
-  WaitFreeHashMap<DialogId, unique_ptr<ActiveStories>, DialogIdHash> active_stories_;
-
-  WaitFreeHashSet<DialogId, DialogIdHash> updated_active_stories_;
-
-  WaitFreeHashMap<DialogId, StoryId, DialogIdHash> max_read_story_ids_;
-
-  WaitFreeHashSet<DialogId, DialogIdHash> failed_to_load_active_stories_;
-
-  FlatHashMap<DialogId, uint64, DialogIdHash> load_expiring_stories_log_event_ids_;
-
-  FlatHashMap<StoryFullId, unique_ptr<BeingEditedStory>, StoryFullIdHash> being_edited_stories_;
-
-  FlatHashMap<uint32, unique_ptr<BeingEditedBusinessStory>> being_edited_business_stories_;
-
-  FlatHashMap<StoryFullId, int64, StoryFullIdHash> edit_generations_;
-
-  FlatHashMap<DialogId, PendingStoryViews, DialogIdHash> pending_story_views_;
-
-  FlatHashMap<StoryFullId, uint32, StoryFullIdHash> opened_stories_with_view_count_;
-
-  FlatHashMap<StoryFullId, uint32, StoryFullIdHash> opened_stories_;
-
-  FlatHashMap<StoryFullId, vector<Promise<Unit>>, StoryFullIdHash> reload_story_queries_;
-
-  FlatHashMap<FileUploadId, unique_ptr<PendingStory>, FileUploadIdHash> being_uploaded_files_;
-
-  FlatHashMap<DialogId, std::set<uint32>, DialogIdHash> yet_unsent_stories_;
-
-  FlatHashMap<DialogId, vector<StoryId>, DialogIdHash> yet_unsent_story_ids_;
-
-  FlatHashMap<int64, StoryFullId> being_sent_stories_;
-
-  FlatHashMap<StoryFullId, int64, StoryFullIdHash> being_sent_story_random_ids_;
-
-  FlatHashMap<StoryFullId, FileUploadId, StoryFullIdHash> being_uploaded_file_upload_ids_;
-
-  FlatHashMap<StoryFullId, StoryId, StoryFullIdHash> update_story_ids_;
-
-  FlatHashMap<int64, vector<Promise<Unit>>> delete_yet_unsent_story_queries_;
-
-  FlatHashMap<uint32, unique_ptr<ReadyToSendStory>> ready_to_send_stories_;
-
-  FlatHashSet<DialogId, DialogIdHash> being_reloaded_active_stories_dialog_ids_;
-
-  bool channels_to_send_stories_inited_ = false;
-  vector<ChannelId> channels_to_send_stories_;
-  vector<Promise<td_api::object_ptr<td_api::chats>>> get_dialogs_to_send_stories_queries_;
-  double next_reload_channels_to_send_stories_time_ = 0.0;
-
-  FlatHashMap<StoryFullId, int32, StoryFullIdHash> being_set_story_reactions_;
-
-  StoryList story_lists_[2];
-
-  StoryStealthMode stealth_mode_;
-
-  uint32 send_story_count_ = 0;
-
-  int64 max_story_global_id_ = 0;
-
-  FlatHashMap<DialogId, int32, DialogIdHash> current_yet_unsent_story_ids_;
-
-  bool has_active_synchronize_archive_all_stories_query_ = false;
-
-  Timeout stealth_mode_update_timeout_;
-
-  Timeout interaction_info_update_timeout_;
-
-  int32 load_expired_database_stories_next_limit_ = DEFAULT_LOADED_EXPIRED_STORIES;
-
-  MultiTimeout story_reload_timeout_{"StoryReloadTimeout"};
-  MultiTimeout story_expire_timeout_{"StoryExpireTimeout"};
-  MultiTimeout story_can_get_viewers_timeout_{"StoryCanGetViewersTimeout"};
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryNotificationSettings.h b/third-party/td/td/td/telegram/StoryNotificationSettings.h
deleted file mode 100644
index a0feb55051..0000000000
--- a/third-party/td/td/td/telegram/StoryNotificationSettings.h
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class StoryNotificationSettings {
- public:
-  const bool need_dialog_settings_ = false;
-  const bool need_top_dialogs_ = false;
-  const bool are_muted_ = false;
-  const bool hide_sender_ = false;
-  const int64 ringtone_id_ = 0;
-
-  StoryNotificationSettings(bool need_dialog_settings, bool need_top_dialogs, bool are_muted, bool hide_sender,
-                            int64 ringtone_id)
-      : need_dialog_settings_(need_dialog_settings)
-      , need_top_dialogs_(need_top_dialogs)
-      , are_muted_(are_muted)
-      , hide_sender_(hide_sender)
-      , ringtone_id_(ringtone_id) {
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryStealthMode.cpp b/third-party/td/td/td/telegram/StoryStealthMode.cpp
deleted file mode 100644
index 78e067a2e9..0000000000
--- a/third-party/td/td/td/telegram/StoryStealthMode.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StoryStealthMode.h"
-
-#include "td/telegram/Global.h"
-
-namespace td {
-
-StoryStealthMode::StoryStealthMode(telegram_api::object_ptr<telegram_api::storiesStealthMode> &&stealth_mode)
-    : active_until_date_(stealth_mode->active_until_date_), cooldown_until_date_(stealth_mode->cooldown_until_date_) {
-  update();
-}
-
-bool StoryStealthMode::update() {
-  auto current_time = G()->unix_time();
-  bool result = false;
-  if (active_until_date_ != 0 && active_until_date_ <= current_time) {
-    active_until_date_ = 0;
-    result = true;
-  }
-  if (cooldown_until_date_ != 0 && cooldown_until_date_ <= current_time) {
-    cooldown_until_date_ = 0;
-    result = true;
-  }
-  return result;
-}
-
-int32 StoryStealthMode::get_update_date() const {
-  if (active_until_date_ > 0) {
-    if (cooldown_until_date_ > 0) {
-      return min(active_until_date_, cooldown_until_date_);
-    }
-    return active_until_date_;
-  }
-  if (cooldown_until_date_ > 0) {
-    return cooldown_until_date_;
-  }
-  return 0;
-}
-
-td_api::object_ptr<td_api::updateStoryStealthMode> StoryStealthMode::get_update_story_stealth_mode_object() const {
-  return td_api::make_object<td_api::updateStoryStealthMode>(active_until_date_, cooldown_until_date_);
-}
-
-bool operator==(const StoryStealthMode &lhs, const StoryStealthMode &rhs) {
-  return lhs.active_until_date_ == rhs.active_until_date_ && lhs.cooldown_until_date_ == rhs.cooldown_until_date_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StoryStealthMode &mode) {
-  if (mode.active_until_date_) {
-    return string_builder << "Stealth mode is active until " << mode.active_until_date_;
-  }
-  if (mode.cooldown_until_date_) {
-    return string_builder << "Stealth mode can't be activated until " << mode.cooldown_until_date_;
-  }
-  return string_builder << "Stealth mode can be activated";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryStealthMode.h b/third-party/td/td/td/telegram/StoryStealthMode.h
deleted file mode 100644
index 632aaee247..0000000000
--- a/third-party/td/td/td/telegram/StoryStealthMode.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class StoryStealthMode {
-  int32 active_until_date_ = 0;
-  int32 cooldown_until_date_ = 0;
-
-  friend bool operator==(const StoryStealthMode &lhs, const StoryStealthMode &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StoryStealthMode &mode);
-
- public:
-  StoryStealthMode() = default;
-
-  explicit StoryStealthMode(telegram_api::object_ptr<telegram_api::storiesStealthMode> &&stealth_mode);
-
-  bool is_empty() const {
-    return active_until_date_ == 0 && cooldown_until_date_ == 0;
-  }
-
-  int32 get_update_date() const;
-
-  bool update();
-
-  td_api::object_ptr<td_api::updateStoryStealthMode> get_update_story_stealth_mode_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const StoryStealthMode &lhs, const StoryStealthMode &rhs);
-
-inline bool operator!=(const StoryStealthMode &lhs, const StoryStealthMode &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StoryStealthMode &mode);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryStealthMode.hpp b/third-party/td/td/td/telegram/StoryStealthMode.hpp
deleted file mode 100644
index 5f4c1d6e3c..0000000000
--- a/third-party/td/td/td/telegram/StoryStealthMode.hpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/StoryStealthMode.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void StoryStealthMode::store(StorerT &storer) const {
-  using td::store;
-  bool has_active_until_date = active_until_date_ != 0;
-  bool has_cooldown_until_date = cooldown_until_date_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_active_until_date);
-  STORE_FLAG(has_cooldown_until_date);
-  END_STORE_FLAGS();
-  if (has_active_until_date) {
-    store(active_until_date_, storer);
-  }
-  if (has_cooldown_until_date) {
-    store(cooldown_until_date_, storer);
-  }
-}
-
-template <class ParserT>
-void StoryStealthMode::parse(ParserT &parser) {
-  using td::parse;
-  bool has_active_until_date;
-  bool has_cooldown_until_date;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_active_until_date);
-  PARSE_FLAG(has_cooldown_until_date);
-  END_PARSE_FLAGS();
-  if (has_active_until_date) {
-    parse(active_until_date_, parser);
-  }
-  if (has_cooldown_until_date) {
-    parse(cooldown_until_date_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryViewer.cpp b/third-party/td/td/td/telegram/StoryViewer.cpp
deleted file mode 100644
index 6a105f6023..0000000000
--- a/third-party/td/td/td/telegram/StoryViewer.cpp
+++ /dev/null
@@ -1,229 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/StoryViewer.h"
-
-#include "td/telegram/BlockListId.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-StoryViewer::StoryViewer(Td *td, telegram_api::object_ptr<telegram_api::StoryView> &&story_view_ptr) {
-  CHECK(story_view_ptr != nullptr);
-  switch (story_view_ptr->get_id()) {
-    case telegram_api::storyView::ID: {
-      auto story_view = telegram_api::move_object_as<telegram_api::storyView>(story_view_ptr);
-      UserId user_id(story_view->user_id_);
-      if (!user_id.is_valid() || story_view->date_ <= 0) {
-        break;
-      }
-      type_ = Type::View;
-      actor_dialog_id_ = DialogId(user_id);
-      date_ = story_view->date_;
-      is_blocked_ = story_view->blocked_;
-      is_blocked_for_stories_ = story_view->blocked_my_stories_from_;
-      reaction_type_ = ReactionType(story_view->reaction_);
-      break;
-    }
-    case telegram_api::storyViewPublicForward::ID: {
-      auto story_view = telegram_api::move_object_as<telegram_api::storyViewPublicForward>(story_view_ptr);
-      auto date = MessagesManager::get_message_date(story_view->message_);
-      auto message_full_id = td->messages_manager_->on_get_message(std::move(story_view->message_), false, true, false,
-                                                                   "storyViewPublicForward");
-      if (!message_full_id.get_message_id().is_valid() || date <= 0) {
-        break;
-      }
-      type_ = Type::Forward;
-      actor_dialog_id_ = td->messages_manager_->get_dialog_message_sender(message_full_id);
-      date_ = date;
-      is_blocked_ = story_view->blocked_;
-      is_blocked_for_stories_ = story_view->blocked_my_stories_from_;
-      message_full_id_ = message_full_id;
-      break;
-    }
-    case telegram_api::storyViewPublicRepost::ID: {
-      auto story_view = telegram_api::move_object_as<telegram_api::storyViewPublicRepost>(story_view_ptr);
-      auto owner_dialog_id = DialogId(story_view->peer_id_);
-      if (!owner_dialog_id.is_valid()) {
-        break;
-      }
-      auto story_id = td->story_manager_->on_get_story(owner_dialog_id, std::move(story_view->story_));
-      auto date = td->story_manager_->get_story_date({owner_dialog_id, story_id});
-      if (date <= 0) {
-        break;
-      }
-      type_ = Type::Repost;
-      actor_dialog_id_ = owner_dialog_id;
-      date_ = date;
-      is_blocked_ = story_view->blocked_;
-      is_blocked_for_stories_ = story_view->blocked_my_stories_from_;
-      story_id_ = story_id;
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  if (is_valid()) {
-    td->messages_manager_->on_update_dialog_is_blocked(actor_dialog_id_, is_blocked_, is_blocked_for_stories_);
-  }
-}
-
-StoryViewer::StoryViewer(Td *td, telegram_api::object_ptr<telegram_api::StoryReaction> &&story_reaction_ptr) {
-  CHECK(story_reaction_ptr != nullptr);
-  switch (story_reaction_ptr->get_id()) {
-    case telegram_api::storyReaction::ID: {
-      auto story_reaction = telegram_api::move_object_as<telegram_api::storyReaction>(story_reaction_ptr);
-      DialogId actor_dialog_id(story_reaction->peer_id_);
-      if (!actor_dialog_id.is_valid() || story_reaction->date_ <= 0) {
-        break;
-      }
-      type_ = Type::View;
-      actor_dialog_id_ = actor_dialog_id;
-      date_ = story_reaction->date_;
-      reaction_type_ = ReactionType(story_reaction->reaction_);
-      break;
-    }
-    case telegram_api::storyReactionPublicForward::ID: {
-      auto story_reaction = telegram_api::move_object_as<telegram_api::storyReactionPublicForward>(story_reaction_ptr);
-      auto date = MessagesManager::get_message_date(story_reaction->message_);
-      auto message_full_id = td->messages_manager_->on_get_message(std::move(story_reaction->message_), false, true,
-                                                                   false, "storyReactionPublicForward");
-      if (!message_full_id.get_message_id().is_valid() || date <= 0) {
-        break;
-      }
-      type_ = Type::Forward;
-      actor_dialog_id_ = td->messages_manager_->get_dialog_message_sender(message_full_id);
-      date_ = date;
-      message_full_id_ = message_full_id;
-      break;
-    }
-    case telegram_api::storyReactionPublicRepost::ID: {
-      auto story_reaction = telegram_api::move_object_as<telegram_api::storyReactionPublicRepost>(story_reaction_ptr);
-      auto owner_dialog_id = DialogId(story_reaction->peer_id_);
-      if (!owner_dialog_id.is_valid()) {
-        break;
-      }
-      auto story_id = td->story_manager_->on_get_story(owner_dialog_id, std::move(story_reaction->story_));
-      auto date = td->story_manager_->get_story_date({owner_dialog_id, story_id});
-      if (date <= 0) {
-        break;
-      }
-      type_ = Type::Repost;
-      actor_dialog_id_ = owner_dialog_id;
-      date_ = date;
-      story_id_ = story_id;
-      break;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-td_api::object_ptr<td_api::storyInteraction> StoryViewer::get_story_interaction_object(Td *td) const {
-  CHECK(is_valid());
-  auto type = [&]() -> td_api::object_ptr<td_api::StoryInteractionType> {
-    switch (type_) {
-      case Type::View:
-        return td_api::make_object<td_api::storyInteractionTypeView>(reaction_type_.get_reaction_type_object());
-      case Type::Forward: {
-        auto message_object =
-            td->messages_manager_->get_message_object(message_full_id_, "storyInteractionTypeForward");
-        CHECK(message_object != nullptr);
-        return td_api::make_object<td_api::storyInteractionTypeForward>(std::move(message_object));
-      }
-      case Type::Repost: {
-        auto story_object = td->story_manager_->get_story_object({actor_dialog_id_, story_id_});
-        CHECK(story_object != nullptr);
-        return td_api::make_object<td_api::storyInteractionTypeRepost>(std::move(story_object));
-      }
-      default:
-        UNREACHABLE();
-        return nullptr;
-    }
-  }();
-  auto block_list_id = BlockListId(is_blocked_, is_blocked_for_stories_);
-  return td_api::make_object<td_api::storyInteraction>(
-      get_message_sender_object(td, actor_dialog_id_, "storyInteraction"), date_, block_list_id.get_block_list_object(),
-      std::move(type));
-}
-
-bool StoryViewer::is_valid() const {
-  return type_ != Type::None && actor_dialog_id_.is_valid() && date_ > 0;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StoryViewer &viewer) {
-  return string_builder << '[' << viewer.actor_dialog_id_ << " with " << viewer.reaction_type_ << " at " << viewer.date_
-                        << ']';
-}
-
-StoryViewers::StoryViewers(Td *td, int32 total_count, int32 total_forward_count, int32 total_reaction_count,
-                           vector<telegram_api::object_ptr<telegram_api::StoryView>> &&story_views,
-                           string &&next_offset)
-    : total_count_(total_count)
-    , total_forward_count_(total_forward_count)
-    , total_reaction_count_(total_reaction_count)
-    , next_offset_(std::move(next_offset)) {
-  for (auto &story_view : story_views) {
-    StoryViewer story_viewer(td, std::move(story_view));
-    if (!story_viewer.is_valid()) {
-      LOG(ERROR) << "Receive invalid story interaction";
-      continue;
-    }
-    story_viewers_.push_back(std::move(story_viewer));
-  }
-}
-
-StoryViewers::StoryViewers(Td *td, int32 total_count,
-                           vector<telegram_api::object_ptr<telegram_api::StoryReaction>> &&story_reactions,
-                           string &&next_offset)
-    : total_count_(total_count), next_offset_(std::move(next_offset)) {
-  for (auto &story_reaction : story_reactions) {
-    StoryViewer story_viewer(td, std::move(story_reaction));
-    if (!story_viewer.is_valid()) {
-      LOG(ERROR) << "Receive invalid story interaction";
-      continue;
-    }
-    story_viewers_.push_back(std::move(story_viewer));
-  }
-}
-
-vector<UserId> StoryViewers::get_viewer_user_ids() const {
-  vector<UserId> result;
-  for (const auto &story_viewer : story_viewers_) {
-    auto user_id = story_viewer.get_viewer_user_id();
-    if (user_id.is_valid()) {
-      result.push_back(user_id);
-    }
-  }
-  return result;
-}
-
-vector<DialogId> StoryViewers::get_actor_dialog_ids() const {
-  return transform(story_viewers_, [](auto &viewer) { return viewer.get_actor_dialog_id(); });
-}
-
-td_api::object_ptr<td_api::storyInteractions> StoryViewers::get_story_interactions_object(Td *td) const {
-  return td_api::make_object<td_api::storyInteractions>(
-      total_count_, total_forward_count_, total_reaction_count_,
-      transform(story_viewers_,
-                [td](const StoryViewer &story_viewer) { return story_viewer.get_story_interaction_object(td); }),
-      next_offset_);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StoryViewers &viewers) {
-  return string_builder << viewers.story_viewers_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/StoryViewer.h b/third-party/td/td/td/telegram/StoryViewer.h
deleted file mode 100644
index daf7070120..0000000000
--- a/third-party/td/td/td/telegram/StoryViewer.h
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class StoryViewer {
-  enum class Type : int32 { None, View, Forward, Repost };
-  Type type_ = Type::None;
-
-  DialogId actor_dialog_id_;
-  int32 date_ = 0;
-  bool is_blocked_ = false;
-  bool is_blocked_for_stories_ = false;
-
-  ReactionType reaction_type_;     // for View
-  MessageFullId message_full_id_;  // for Forward
-  StoryId story_id_;               // for Repost
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StoryViewer &viewer);
-
- public:
-  StoryViewer(Td *td, telegram_api::object_ptr<telegram_api::StoryView> &&story_view_ptr);
-
-  StoryViewer(Td *td, telegram_api::object_ptr<telegram_api::StoryReaction> &&story_reaction_ptr);
-
-  UserId get_viewer_user_id() const {
-    return type_ == Type::View ? actor_dialog_id_.get_user_id() : UserId();
-  }
-
-  DialogId get_actor_dialog_id() const {
-    return actor_dialog_id_;
-  }
-
-  bool is_valid() const;
-
-  td_api::object_ptr<td_api::storyInteraction> get_story_interaction_object(Td *td) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StoryViewer &viewer);
-
-class StoryViewers {
-  int32 total_count_ = 0;
-  int32 total_forward_count_ = 0;
-  int32 total_reaction_count_ = 0;
-  vector<StoryViewer> story_viewers_;
-  string next_offset_;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const StoryViewers &viewers);
-
- public:
-  StoryViewers(Td *td, int32 total_count, int32 total_forward_count, int32 total_reaction_count,
-               vector<telegram_api::object_ptr<telegram_api::StoryView>> &&story_views, string &&next_offset);
-
-  StoryViewers(Td *td, int32 total_count,
-               vector<telegram_api::object_ptr<telegram_api::StoryReaction>> &&story_reactions, string &&next_offset);
-
-  vector<UserId> get_viewer_user_ids() const;
-
-  vector<DialogId> get_actor_dialog_ids() const;
-
-  td_api::object_ptr<td_api::storyInteractions> get_story_interactions_object(Td *td) const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const StoryViewers &viewers);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SuggestedAction.cpp b/third-party/td/td/td/telegram/SuggestedAction.cpp
deleted file mode 100644
index 9c42929d76..0000000000
--- a/third-party/td/td/td/telegram/SuggestedAction.cpp
+++ /dev/null
@@ -1,291 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SuggestedAction.h"
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/SuggestedActionManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Status.h"
-
-#include <algorithm>
-
-namespace td {
-
-void SuggestedAction::init(Type type) {
-  type_ = type;
-}
-
-SuggestedAction::SuggestedAction(Slice action_str) {
-  if (action_str == Slice("AUTOARCHIVE_POPULAR")) {
-    init(Type::EnableArchiveAndMuteNewChats);
-  } else if (action_str == Slice("VALIDATE_PASSWORD")) {
-    init(Type::CheckPassword);
-  } else if (action_str == Slice("VALIDATE_PHONE_NUMBER")) {
-    init(Type::CheckPhoneNumber);
-  } else if (action_str == Slice("NEWCOMER_TICKS")) {
-    init(Type::ViewChecksHint);
-  } else if (action_str == Slice("SETUP_PASSWORD")) {
-    init(Type::SetPassword);
-  } else if (action_str == Slice("PREMIUM_UPGRADE")) {
-    init(Type::UpgradePremium);
-  } else if (action_str == Slice("PREMIUM_ANNUAL")) {
-    init(Type::SubscribeToAnnualPremium);
-  } else if (action_str == Slice("PREMIUM_RESTORE")) {
-    init(Type::RestorePremium);
-  } else if (action_str == Slice("PREMIUM_CHRISTMAS")) {
-    init(Type::GiftPremiumForChristmas);
-  } else if (action_str == Slice("BIRTHDAY_SETUP")) {
-    init(Type::BirthdaySetup);
-  } else if (action_str == Slice("PREMIUM_GRACE")) {
-    init(Type::PremiumGrace);
-  } else if (action_str == Slice("STARS_SUBSCRIPTION_LOW_BALANCE")) {
-    init(Type::StarsSubscriptionLowBalance);
-  } else if (action_str == Slice("USERPIC_SETUP")) {
-    init(Type::UserpicSetup);
-  }
-}
-
-SuggestedAction::SuggestedAction(Slice action_str, DialogId dialog_id) {
-  CHECK(dialog_id.is_valid());
-  if (action_str == Slice("CONVERT_GIGAGROUP")) {
-    type_ = Type::ConvertToGigagroup;
-    dialog_id_ = dialog_id;
-  }
-}
-
-SuggestedAction::SuggestedAction(const td_api::object_ptr<td_api::SuggestedAction> &suggested_action) {
-  if (suggested_action == nullptr) {
-    return;
-  }
-  switch (suggested_action->get_id()) {
-    case td_api::suggestedActionEnableArchiveAndMuteNewChats::ID:
-      init(Type::EnableArchiveAndMuteNewChats);
-      break;
-    case td_api::suggestedActionCheckPassword::ID:
-      init(Type::CheckPassword);
-      break;
-    case td_api::suggestedActionCheckPhoneNumber::ID:
-      init(Type::CheckPhoneNumber);
-      break;
-    case td_api::suggestedActionViewChecksHint::ID:
-      init(Type::ViewChecksHint);
-      break;
-    case td_api::suggestedActionConvertToBroadcastGroup::ID: {
-      auto action = static_cast<const td_api::suggestedActionConvertToBroadcastGroup *>(suggested_action.get());
-      ChannelId channel_id(action->supergroup_id_);
-      if (channel_id.is_valid()) {
-        type_ = Type::ConvertToGigagroup;
-        dialog_id_ = DialogId(channel_id);
-      }
-      break;
-    }
-    case td_api::suggestedActionSetPassword::ID: {
-      auto action = static_cast<const td_api::suggestedActionSetPassword *>(suggested_action.get());
-      type_ = Type::SetPassword;
-      otherwise_relogin_days_ = action->authorization_delay_;
-      break;
-    }
-    case td_api::suggestedActionUpgradePremium::ID:
-      init(Type::UpgradePremium);
-      break;
-    case td_api::suggestedActionSubscribeToAnnualPremium::ID:
-      init(Type::SubscribeToAnnualPremium);
-      break;
-    case td_api::suggestedActionRestorePremium::ID:
-      init(Type::RestorePremium);
-      break;
-    case td_api::suggestedActionGiftPremiumForChristmas::ID:
-      init(Type::GiftPremiumForChristmas);
-      break;
-    case td_api::suggestedActionSetBirthdate::ID:
-      init(Type::BirthdaySetup);
-      break;
-    case td_api::suggestedActionExtendPremium::ID:
-      init(Type::PremiumGrace);
-      break;
-    case td_api::suggestedActionExtendStarSubscriptions::ID:
-      init(Type::StarsSubscriptionLowBalance);
-      break;
-    case td_api::suggestedActionSetProfilePhoto::ID:
-      init(Type::UserpicSetup);
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-string SuggestedAction::get_suggested_action_str() const {
-  switch (type_) {
-    case Type::EnableArchiveAndMuteNewChats:
-      return "AUTOARCHIVE_POPULAR";
-    case Type::CheckPassword:
-      return "VALIDATE_PASSWORD";
-    case Type::CheckPhoneNumber:
-      return "VALIDATE_PHONE_NUMBER";
-    case Type::ViewChecksHint:
-      return "NEWCOMER_TICKS";
-    case Type::ConvertToGigagroup:
-      return "CONVERT_GIGAGROUP";
-    case Type::SetPassword:
-      return "SETUP_PASSWORD";
-    case Type::UpgradePremium:
-      return "PREMIUM_UPGRADE";
-    case Type::SubscribeToAnnualPremium:
-      return "PREMIUM_ANNUAL";
-    case Type::RestorePremium:
-      return "PREMIUM_RESTORE";
-    case Type::GiftPremiumForChristmas:
-      return "PREMIUM_CHRISTMAS";
-    case Type::BirthdaySetup:
-      return "BIRTHDAY_SETUP";
-    case Type::PremiumGrace:
-      return "PREMIUM_GRACE";
-    case Type::StarsSubscriptionLowBalance:
-      return "STARS_SUBSCRIPTION_LOW_BALANCE";
-    case Type::UserpicSetup:
-      return "USERPIC_SETUP";
-    default:
-      return string();
-  }
-}
-
-td_api::object_ptr<td_api::SuggestedAction> SuggestedAction::get_suggested_action_object() const {
-  switch (type_) {
-    case Type::Empty:
-      return nullptr;
-    case Type::EnableArchiveAndMuteNewChats:
-      return td_api::make_object<td_api::suggestedActionEnableArchiveAndMuteNewChats>();
-    case Type::CheckPassword:
-      return td_api::make_object<td_api::suggestedActionCheckPassword>();
-    case Type::CheckPhoneNumber:
-      return td_api::make_object<td_api::suggestedActionCheckPhoneNumber>();
-    case Type::ViewChecksHint:
-      return td_api::make_object<td_api::suggestedActionViewChecksHint>();
-    case Type::ConvertToGigagroup:
-      return td_api::make_object<td_api::suggestedActionConvertToBroadcastGroup>(dialog_id_.get_channel_id().get());
-    case Type::SetPassword:
-      return td_api::make_object<td_api::suggestedActionSetPassword>(otherwise_relogin_days_);
-    case Type::UpgradePremium:
-      return td_api::make_object<td_api::suggestedActionUpgradePremium>();
-    case Type::SubscribeToAnnualPremium:
-      return td_api::make_object<td_api::suggestedActionSubscribeToAnnualPremium>();
-    case Type::RestorePremium:
-      return td_api::make_object<td_api::suggestedActionRestorePremium>();
-    case Type::GiftPremiumForChristmas:
-      return td_api::make_object<td_api::suggestedActionGiftPremiumForChristmas>();
-    case Type::BirthdaySetup:
-      return td_api::make_object<td_api::suggestedActionSetBirthdate>();
-    case Type::PremiumGrace:
-      return td_api::make_object<td_api::suggestedActionExtendPremium>(
-          G()->get_option_string("premium_manage_subscription_url", "https://t.me/premiumbot?start=status"));
-    case Type::StarsSubscriptionLowBalance:
-      return td_api::make_object<td_api::suggestedActionExtendStarSubscriptions>();
-    case Type::UserpicSetup:
-      return td_api::make_object<td_api::suggestedActionSetProfilePhoto>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::updateSuggestedActions> get_update_suggested_actions_object(
-    const vector<SuggestedAction> &added_actions, const vector<SuggestedAction> &removed_actions, const char *source) {
-  LOG(INFO) << "Get updateSuggestedActions from " << source;
-  auto get_object = [](const SuggestedAction &action) {
-    return action.get_suggested_action_object();
-  };
-  return td_api::make_object<td_api::updateSuggestedActions>(transform(added_actions, get_object),
-                                                             transform(removed_actions, get_object));
-}
-
-bool update_suggested_actions(vector<SuggestedAction> &suggested_actions,
-                              vector<SuggestedAction> &&new_suggested_actions) {
-  td::unique(new_suggested_actions);
-  if (new_suggested_actions == suggested_actions) {
-    return false;
-  }
-
-  vector<SuggestedAction> added_actions;
-  vector<SuggestedAction> removed_actions;
-  auto old_it = suggested_actions.begin();
-  auto new_it = new_suggested_actions.begin();
-  while (old_it != suggested_actions.end() || new_it != new_suggested_actions.end()) {
-    if (old_it != suggested_actions.end() && (new_it == new_suggested_actions.end() || *old_it < *new_it)) {
-      removed_actions.push_back(*old_it++);
-    } else if (old_it == suggested_actions.end() || *new_it < *old_it) {
-      added_actions.push_back(*new_it++);
-    } else {
-      ++old_it;
-      ++new_it;
-    }
-  }
-  CHECK(!added_actions.empty() || !removed_actions.empty());
-  suggested_actions = std::move(new_suggested_actions);
-  send_closure(G()->td(), &Td::send_update,
-               get_update_suggested_actions_object(added_actions, removed_actions, "update_suggested_actions"));
-  return true;
-}
-
-bool remove_suggested_action(vector<SuggestedAction> &suggested_actions, SuggestedAction suggested_action) {
-  if (td::remove(suggested_actions, suggested_action)) {
-    send_closure(G()->td(), &Td::send_update,
-                 get_update_suggested_actions_object({}, {suggested_action}, "remove_suggested_action"));
-    return true;
-  }
-  return false;
-}
-
-void dismiss_suggested_action(SuggestedAction action, Promise<Unit> &&promise) {
-  switch (action.type_) {
-    case SuggestedAction::Type::Empty:
-      return promise.set_error(Status::Error(400, "Action must be non-empty"));
-    case SuggestedAction::Type::EnableArchiveAndMuteNewChats:
-    case SuggestedAction::Type::CheckPassword:
-    case SuggestedAction::Type::CheckPhoneNumber:
-    case SuggestedAction::Type::ViewChecksHint:
-    case SuggestedAction::Type::UpgradePremium:
-    case SuggestedAction::Type::SubscribeToAnnualPremium:
-    case SuggestedAction::Type::RestorePremium:
-    case SuggestedAction::Type::GiftPremiumForChristmas:
-    case SuggestedAction::Type::BirthdaySetup:
-    case SuggestedAction::Type::PremiumGrace:
-    case SuggestedAction::Type::StarsSubscriptionLowBalance:
-    case SuggestedAction::Type::ConvertToGigagroup:
-    case SuggestedAction::Type::UserpicSetup:
-      return send_closure_later(G()->suggested_action_manager(), &SuggestedActionManager::dismiss_suggested_action,
-                                std::move(action), std::move(promise));
-    case SuggestedAction::Type::SetPassword: {
-      if (action.otherwise_relogin_days_ < 0) {
-        return promise.set_error(Status::Error(400, "Invalid authorization_delay specified"));
-      }
-      if (action.otherwise_relogin_days_ == 0) {
-        return send_closure_later(G()->suggested_action_manager(), &SuggestedActionManager::dismiss_suggested_action,
-                                  std::move(action), std::move(promise));
-      }
-      auto days = narrow_cast<int32>(G()->get_option_integer("otherwise_relogin_days"));
-      if (days == action.otherwise_relogin_days_) {
-        vector<SuggestedAction> removed_actions{SuggestedAction{SuggestedAction::Type::SetPassword, DialogId(), days}};
-        send_closure(G()->td(), &Td::send_update,
-                     get_update_suggested_actions_object({}, removed_actions, "dismiss_suggested_action"));
-        G()->set_option_empty("otherwise_relogin_days");
-      }
-      return promise.set_value(Unit());
-    }
-    default:
-      UNREACHABLE();
-      return;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SuggestedAction.h b/third-party/td/td/td/telegram/SuggestedAction.h
deleted file mode 100644
index ef69243d8a..0000000000
--- a/third-party/td/td/td/telegram/SuggestedAction.h
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-struct SuggestedAction {
-  enum class Type : int32 {
-    Empty,
-    EnableArchiveAndMuteNewChats,
-    CheckPhoneNumber,
-    ViewChecksHint,
-    ConvertToGigagroup,
-    CheckPassword,
-    SetPassword,
-    UpgradePremium,
-    SubscribeToAnnualPremium,
-    RestorePremium,
-    GiftPremiumForChristmas,
-    BirthdaySetup,
-    PremiumGrace,
-    StarsSubscriptionLowBalance,
-    UserpicSetup
-  };
-  Type type_ = Type::Empty;
-  DialogId dialog_id_;
-  int32 otherwise_relogin_days_ = 0;
-
-  void init(Type type);
-
-  SuggestedAction() = default;
-
-  explicit SuggestedAction(Type type, DialogId dialog_id = DialogId(), int32 otherwise_relogin_days = 0)
-      : type_(type), dialog_id_(dialog_id), otherwise_relogin_days_(otherwise_relogin_days) {
-  }
-
-  explicit SuggestedAction(Slice action_str);
-
-  SuggestedAction(Slice action_str, DialogId dialog_id);
-
-  explicit SuggestedAction(const td_api::object_ptr<td_api::SuggestedAction> &suggested_action);
-
-  bool is_empty() const {
-    return type_ == Type::Empty;
-  }
-
-  string get_suggested_action_str() const;
-
-  td_api::object_ptr<td_api::SuggestedAction> get_suggested_action_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-struct SuggestedActionHash {
-  uint32 operator()(SuggestedAction suggested_action) const {
-    return combine_hashes(DialogIdHash()(suggested_action.dialog_id_), static_cast<int32>(suggested_action.type_));
-  }
-};
-
-inline bool operator==(const SuggestedAction &lhs, const SuggestedAction &rhs) {
-  return lhs.type_ == rhs.type_ && lhs.dialog_id_ == rhs.dialog_id_;
-}
-
-inline bool operator!=(const SuggestedAction &lhs, const SuggestedAction &rhs) {
-  return !(lhs == rhs);
-}
-
-inline bool operator<(const SuggestedAction &lhs, const SuggestedAction &rhs) {
-  if (lhs.dialog_id_ != rhs.dialog_id_) {
-    return lhs.dialog_id_.get() < rhs.dialog_id_.get();
-  }
-  return static_cast<int32>(lhs.type_) < static_cast<int32>(rhs.type_);
-}
-
-td_api::object_ptr<td_api::updateSuggestedActions> get_update_suggested_actions_object(
-    const vector<SuggestedAction> &added_actions, const vector<SuggestedAction> &removed_actions, const char *source);
-
-bool update_suggested_actions(vector<SuggestedAction> &suggested_actions,
-                              vector<SuggestedAction> &&new_suggested_actions);
-
-bool remove_suggested_action(vector<SuggestedAction> &suggested_actions, SuggestedAction suggested_action);
-
-void dismiss_suggested_action(SuggestedAction action, Promise<Unit> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SuggestedAction.hpp b/third-party/td/td/td/telegram/SuggestedAction.hpp
deleted file mode 100644
index d4065be840..0000000000
--- a/third-party/td/td/td/telegram/SuggestedAction.hpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/SuggestedAction.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void SuggestedAction::store(StorerT &storer) const {
-  bool has_dialog_id = dialog_id_ != DialogId();
-  bool has_otherwise_relogin_days = otherwise_relogin_days_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_dialog_id);
-  STORE_FLAG(has_otherwise_relogin_days);
-  END_STORE_FLAGS();
-  td::store(type_, storer);
-  if (has_dialog_id) {
-    td::store(dialog_id_, storer);
-  }
-  if (has_otherwise_relogin_days) {
-    td::store(otherwise_relogin_days_, storer);
-  }
-}
-
-template <class ParserT>
-void SuggestedAction::parse(ParserT &parser) {
-  bool has_dialog_id;
-  bool has_otherwise_relogin_days;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_dialog_id);
-  PARSE_FLAG(has_otherwise_relogin_days);
-  END_PARSE_FLAGS();
-  td::parse(type_, parser);
-  if (has_dialog_id) {
-    td::parse(dialog_id_, parser);
-  }
-  if (has_otherwise_relogin_days) {
-    td::parse(otherwise_relogin_days_, parser);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SuggestedActionManager.cpp b/third-party/td/td/td/telegram/SuggestedActionManager.cpp
deleted file mode 100644
index 501c656bb3..0000000000
--- a/third-party/td/td/td/telegram/SuggestedActionManager.cpp
+++ /dev/null
@@ -1,236 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SuggestedActionManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/SuggestedAction.hpp"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-class DismissSuggestionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit DismissSuggestionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(SuggestedAction action) {
-    dialog_id_ = action.dialog_id_;
-    telegram_api::object_ptr<telegram_api::InputPeer> input_peer;
-    if (dialog_id_.is_valid()) {
-      input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-      CHECK(input_peer != nullptr);
-    } else {
-      input_peer = telegram_api::make_object<telegram_api::inputPeerEmpty>();
-    }
-
-    send_query(G()->net_query_creator().create(
-        telegram_api::help_dismissSuggestion(std::move(input_peer), action.get_suggested_action_str())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_dismissSuggestion>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (dialog_id_.is_valid()) {
-      td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "DismissSuggestionQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-SuggestedActionManager::SuggestedActionManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void SuggestedActionManager::start_up() {
-  auto log_event_string = G()->td_db()->get_binlog_pmc()->get(get_suggested_actions_database_key());
-  if (!log_event_string.empty()) {
-    vector<SuggestedAction> suggested_actions;
-    auto status = log_event_parse(suggested_actions, log_event_string);
-    if (status.is_error()) {
-      LOG(ERROR) << "Failed to parse suggested actions from binlog: " << status;
-      save_suggested_actions();
-    } else {
-      ::td::update_suggested_actions(suggested_actions_, std::move(suggested_actions));
-    }
-  }
-}
-
-void SuggestedActionManager::hangup() {
-  while (!dismiss_suggested_action_queries_.empty()) {
-    auto it = dismiss_suggested_action_queries_.begin();
-    auto promises = std::move(it->second);
-    dismiss_suggested_action_queries_.erase(it);
-    fail_promises(promises, Global::request_aborted_error());
-  }
-
-  stop();
-}
-
-void SuggestedActionManager::tear_down() {
-  parent_.reset();
-}
-
-void SuggestedActionManager::update_suggested_actions(vector<SuggestedAction> &&suggested_actions) {
-  if (!dismiss_suggested_action_queries_.empty()) {
-    // do not update suggested actions while dismissing an action
-    return;
-  }
-  if (::td::update_suggested_actions(suggested_actions_, std::move(suggested_actions))) {
-    save_suggested_actions();
-  }
-}
-
-void SuggestedActionManager::hide_suggested_action(SuggestedAction suggested_action) {
-  if (remove_suggested_action(suggested_actions_, suggested_action)) {
-    save_suggested_actions();
-  }
-}
-
-void SuggestedActionManager::dismiss_suggested_action(SuggestedAction suggested_action, Promise<Unit> &&promise) {
-  auto action_str = suggested_action.get_suggested_action_str();
-  if (action_str.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  auto dialog_id = suggested_action.dialog_id_;
-  if (dialog_id != DialogId()) {
-    TRY_STATUS_PROMISE(promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read,
-                                                                          "dismiss_suggested_action"));
-
-    auto it = dialog_suggested_actions_.find(dialog_id);
-    if (it == dialog_suggested_actions_.end() || !td::contains(it->second, suggested_action)) {
-      return promise.set_value(Unit());
-    }
-    remove_dialog_suggested_action(suggested_action);
-  } else {
-    if (!remove_suggested_action(suggested_actions_, suggested_action)) {
-      return promise.set_value(Unit());
-    }
-    save_suggested_actions();
-  }
-
-  auto &queries = dismiss_suggested_action_queries_[suggested_action];
-  queries.push_back(std::move(promise));
-  if (queries.size() == 1) {
-    auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), suggested_action](Result<Unit> result) {
-      send_closure(actor_id, &SuggestedActionManager::on_dismiss_suggested_action, suggested_action, std::move(result));
-    });
-    td_->create_handler<DismissSuggestionQuery>(std::move(query_promise))->send(suggested_action);
-  }
-}
-
-void SuggestedActionManager::on_dismiss_suggested_action(SuggestedAction suggested_action, Result<Unit> &&result) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto it = dismiss_suggested_action_queries_.find(suggested_action);
-  CHECK(it != dismiss_suggested_action_queries_.end());
-  auto promises = std::move(it->second);
-  CHECK(!promises.empty());
-  dismiss_suggested_action_queries_.erase(it);
-
-  if (result.is_error()) {
-    return fail_promises(promises, result.move_as_error());
-  }
-
-  if (suggested_action.dialog_id_ != DialogId()) {
-    remove_dialog_suggested_action(suggested_action);
-  } else {
-    if (remove_suggested_action(suggested_actions_, suggested_action)) {
-      save_suggested_actions();
-    }
-    send_closure(G()->config_manager(), &ConfigManager::reget_app_config, Promise<Unit>());
-  }
-
-  set_promises(promises);
-}
-
-string SuggestedActionManager::get_suggested_actions_database_key() {
-  return "suggested_actions";
-}
-
-void SuggestedActionManager::save_suggested_actions() {
-  if (suggested_actions_.empty()) {
-    G()->td_db()->get_binlog_pmc()->erase(get_suggested_actions_database_key());
-  } else {
-    G()->td_db()->get_binlog_pmc()->set(get_suggested_actions_database_key(),
-                                        log_event_store(suggested_actions_).as_slice().str());
-  }
-}
-
-void SuggestedActionManager::set_dialog_pending_suggestions(DialogId dialog_id, vector<string> &&pending_suggestions) {
-  if (!dismiss_suggested_action_queries_.empty()) {
-    return;
-  }
-  auto it = dialog_suggested_actions_.find(dialog_id);
-  if (it == dialog_suggested_actions_.end() && !pending_suggestions.empty()) {
-    return;
-  }
-  vector<SuggestedAction> suggested_actions;
-  for (auto &action_str : pending_suggestions) {
-    SuggestedAction suggested_action(action_str, dialog_id);
-    if (!suggested_action.is_empty()) {
-      if (suggested_action == SuggestedAction{SuggestedAction::Type::ConvertToGigagroup, dialog_id} &&
-          (dialog_id.get_type() != DialogType::Channel ||
-           !td_->chat_manager_->can_convert_channel_to_gigagroup(dialog_id.get_channel_id()))) {
-        LOG(INFO) << "Skip ConvertToGigagroup suggested action";
-      } else {
-        suggested_actions.push_back(suggested_action);
-      }
-    }
-  }
-  if (it == dialog_suggested_actions_.end()) {
-    it = dialog_suggested_actions_.emplace(dialog_id, vector<SuggestedAction>()).first;
-  }
-  ::td::update_suggested_actions(it->second, std::move(suggested_actions));
-  if (it->second.empty()) {
-    dialog_suggested_actions_.erase(it);
-  }
-}
-
-void SuggestedActionManager::remove_dialog_suggested_action(SuggestedAction action) {
-  auto it = dialog_suggested_actions_.find(action.dialog_id_);
-  if (it == dialog_suggested_actions_.end()) {
-    return;
-  }
-  remove_suggested_action(it->second, action);
-  if (it->second.empty()) {
-    dialog_suggested_actions_.erase(it);
-  }
-}
-
-void SuggestedActionManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (!suggested_actions_.empty()) {
-    updates.push_back(get_update_suggested_actions_object(suggested_actions_, {}, "get_current_state"));
-  }
-  for (const auto &actions : dialog_suggested_actions_) {
-    updates.push_back(get_update_suggested_actions_object(actions.second, {}, "get_current_state 2"));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SuggestedActionManager.h b/third-party/td/td/td/telegram/SuggestedActionManager.h
deleted file mode 100644
index 47fc08d75a..0000000000
--- a/third-party/td/td/td/telegram/SuggestedActionManager.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class SuggestedActionManager final : public Actor {
- public:
-  SuggestedActionManager(Td *td, ActorShared<> parent);
-
-  void update_suggested_actions(vector<SuggestedAction> &&suggested_actions);
-
-  void hide_suggested_action(SuggestedAction suggested_action);
-
-  void dismiss_suggested_action(SuggestedAction suggested_action, Promise<Unit> &&promise);
-
-  void remove_dialog_suggested_action(SuggestedAction action);
-
-  void set_dialog_pending_suggestions(DialogId dialog_id, vector<string> &&pending_suggestions);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  void start_up() final;
-
-  void hangup() final;
-
-  void tear_down() final;
-
-  static string get_suggested_actions_database_key();
-
-  void save_suggested_actions();
-
-  void on_dismiss_suggested_action(SuggestedAction suggested_action, Result<Unit> &&result);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  vector<SuggestedAction> suggested_actions_;
-  FlatHashMap<DialogId, vector<SuggestedAction>, DialogIdHash> dialog_suggested_actions_;
-  FlatHashMap<SuggestedAction, vector<Promise<Unit>>, SuggestedActionHash> dismiss_suggested_action_queries_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Support.cpp b/third-party/td/td/td/telegram/Support.cpp
deleted file mode 100644
index 832acb7a03..0000000000
--- a/third-party/td/td/td/telegram/Support.cpp
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Support.h"
-
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-static td_api::object_ptr<td_api::userSupportInfo> get_user_support_info_object(
-    Td *td, telegram_api::object_ptr<telegram_api::help_UserInfo> user_info) {
-  CHECK(user_info != nullptr);
-  auto result = td_api::make_object<td_api::userSupportInfo>();
-  FormattedText message;
-  if (user_info->get_id() == telegram_api::help_userInfo::ID) {
-    auto info = telegram_api::move_object_as<telegram_api::help_userInfo>(user_info);
-    message = get_message_text(td->user_manager_.get(), std::move(info->message_), std::move(info->entities_), true,
-                               true, info->date_, false, "get_user_support_info_object");
-    result->author_ = std::move(info->author_);
-    result->date_ = info->date_;
-  }
-  result->message_ = get_formatted_text_object(td->user_manager_.get(), message, true, 0);
-  return result;
-}
-
-class GetUserInfoQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::userSupportInfo>> promise_;
-
- public:
-  explicit GetUserInfoQuery(Promise<td_api::object_ptr<td_api::userSupportInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id) {
-    auto r_input_user = td_->user_manager_->get_input_user(user_id);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::help_getUserInfo(r_input_user.move_as_ok())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getUserInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(get_user_support_info_object(td_, result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class EditUserInfoQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::userSupportInfo>> promise_;
-
- public:
-  explicit EditUserInfoQuery(Promise<td_api::object_ptr<td_api::userSupportInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, FormattedText &&formatted_text) {
-    auto r_input_user = td_->user_manager_->get_input_user(user_id);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::help_editUserInfo(
-        r_input_user.move_as_ok(), formatted_text.text,
-        get_input_message_entities(td_->user_manager_.get(), &formatted_text, "EditUserInfoQuery"))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_editUserInfo>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(get_user_support_info_object(td_, result_ptr.move_as_ok()));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSupportNameQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit GetSupportNameQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::help_getSupportName()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getSupportName>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(std::move(result_ptr.ok_ref()->name_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-void get_user_info(Td *td, UserId user_id, Promise<td_api::object_ptr<td_api::userSupportInfo>> &&promise) {
-  td->create_handler<GetUserInfoQuery>(std::move(promise))->send(user_id);
-}
-
-void set_user_info(Td *td, UserId user_id, td_api::object_ptr<td_api::formattedText> &&message,
-                   Promise<td_api::object_ptr<td_api::userSupportInfo>> &&promise) {
-  TRY_RESULT_PROMISE(
-      promise, formatted_text,
-      get_formatted_text(td, td->dialog_manager_->get_my_dialog_id(), std::move(message), false, true, true, false));
-  td->create_handler<EditUserInfoQuery>(std::move(promise))->send(user_id, std::move(formatted_text));
-}
-
-void get_support_name(Td *td, Promise<string> &&promise) {
-  td->create_handler<GetSupportNameQuery>(std::move(promise))->send();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Support.h b/third-party/td/td/td/telegram/Support.h
deleted file mode 100644
index 7eed5275cd..0000000000
--- a/third-party/td/td/td/telegram/Support.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-void get_user_info(Td *td, UserId user_id, Promise<td_api::object_ptr<td_api::userSupportInfo>> &&promise);
-
-void set_user_info(Td *td, UserId user_id, td_api::object_ptr<td_api::formattedText> &&message,
-                   Promise<td_api::object_ptr<td_api::userSupportInfo>> &&promise);
-
-void get_support_name(Td *td, Promise<string> &&promise);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SynchronousRequests.cpp b/third-party/td/td/td/telegram/SynchronousRequests.cpp
deleted file mode 100644
index a3719bd2f9..0000000000
--- a/third-party/td/td/td/telegram/SynchronousRequests.cpp
+++ /dev/null
@@ -1,397 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SynchronousRequests.h"
-
-#include "td/telegram/CountryInfoManager.h"
-#include "td/telegram/DialogFilter.h"
-#include "td/telegram/JsonValue.h"
-#include "td/telegram/LanguagePackManager.h"
-#include "td/telegram/Logging.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessageQuote.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.hpp"
-#include "td/telegram/ThemeManager.h"
-
-#include "td/utils/filesystem.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/MimeType.h"
-#include "td/utils/PathView.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/utf8.h"
-
-#include <limits>
-
-namespace td {
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::run_request(td_api::object_ptr<td_api::Function> &&function) {
-  if (function == nullptr) {
-    return td_api::make_object<td_api::error>(400, "Request is empty");
-  }
-
-  auto function_id = function->get_id();
-  bool need_logging = [function_id] {
-    switch (function_id) {
-      case td_api::parseTextEntities::ID:
-      case td_api::parseMarkdown::ID:
-      case td_api::getMarkdownText::ID:
-      case td_api::searchStringsByPrefix::ID:
-      case td_api::checkQuickReplyShortcutName::ID:
-      case td_api::getCountryFlagEmoji::ID:
-      case td_api::getFileMimeType::ID:
-      case td_api::getFileExtension::ID:
-      case td_api::cleanFileName::ID:
-      case td_api::getChatFolderDefaultIconName::ID:
-      case td_api::getJsonValue::ID:
-      case td_api::getJsonString::ID:
-      case td_api::getThemeParametersJsonString::ID:
-      case td_api::testReturnError::ID:
-        return true;
-      default:
-        return false;
-    }
-  }();
-
-  if (need_logging) {
-    VLOG(td_requests) << "Receive static request: " << to_string(function);
-  }
-
-  td_api::object_ptr<td_api::Object> response;
-  downcast_call(*function, [&response](auto &request) { response = SynchronousRequests::do_request(request); });
-  LOG_CHECK(response != nullptr) << function_id;
-
-  if (need_logging) {
-    VLOG(td_requests) << "Sending result for static request: " << to_string(response);
-  }
-  return response;
-}
-
-bool SynchronousRequests::is_synchronous_request(const td_api::Function *function) {
-  switch (function->get_id()) {
-    case td_api::searchQuote::ID:
-    case td_api::getTextEntities::ID:
-    case td_api::parseTextEntities::ID:
-    case td_api::parseMarkdown::ID:
-    case td_api::getMarkdownText::ID:
-    case td_api::searchStringsByPrefix::ID:
-    case td_api::checkQuickReplyShortcutName::ID:
-    case td_api::getCountryFlagEmoji::ID:
-    case td_api::getFileMimeType::ID:
-    case td_api::getFileExtension::ID:
-    case td_api::cleanFileName::ID:
-    case td_api::getLanguagePackString::ID:
-    case td_api::getPhoneNumberInfoSync::ID:
-    case td_api::getChatFolderDefaultIconName::ID:
-    case td_api::getJsonValue::ID:
-    case td_api::getJsonString::ID:
-    case td_api::getThemeParametersJsonString::ID:
-    case td_api::getPushReceiverId::ID:
-    case td_api::setLogStream::ID:
-    case td_api::getLogStream::ID:
-    case td_api::setLogVerbosityLevel::ID:
-    case td_api::getLogVerbosityLevel::ID:
-    case td_api::getLogTags::ID:
-    case td_api::setLogTagVerbosityLevel::ID:
-    case td_api::getLogTagVerbosityLevel::ID:
-    case td_api::addLogMessage::ID:
-    case td_api::testReturnError::ID:
-      return true;
-    case td_api::getOption::ID:
-      return OptionManager::is_synchronous_option(static_cast<const td_api::getOption *>(function)->name_);
-    default:
-      return false;
-  }
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::searchQuote &request) {
-  if (request.text_ == nullptr || request.quote_ == nullptr) {
-    return make_error(400, "Text and quote must be non-empty");
-  }
-  if (!check_utf8(request.text_->text_) || !check_utf8(request.quote_->text_)) {
-    return make_error(400, "Strings must be encoded in UTF-8");
-  }
-  auto r_text_entities = get_message_entities(nullptr, std::move(request.text_->entities_), false);
-  if (r_text_entities.is_error()) {
-    return make_error(400, r_text_entities.error().message());
-  }
-  auto r_quote_entities = get_message_entities(nullptr, std::move(request.quote_->entities_), false);
-  if (r_quote_entities.is_error()) {
-    return make_error(400, r_quote_entities.error().message());
-  }
-  auto position = MessageQuote::search_quote({std::move(request.text_->text_), r_text_entities.move_as_ok()},
-                                             {std::move(request.quote_->text_), r_quote_entities.move_as_ok()},
-                                             request.quote_position_);
-  if (position == -1) {
-    return make_error(404, "Not Found");
-  }
-  return td_api::make_object<td_api::foundPosition>(position);
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getTextEntities &request) {
-  if (!check_utf8(request.text_)) {
-    return make_error(400, "Text must be encoded in UTF-8");
-  }
-  auto text_entities = find_entities(request.text_, false, false);
-  return td_api::make_object<td_api::textEntities>(
-      get_text_entities_object(nullptr, text_entities, false, std::numeric_limits<int32>::max()));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::parseTextEntities &request) {
-  if (!check_utf8(request.text_)) {  // must not use clean_input_string, because \r may be used as a separator
-    return make_error(400, "Text must be encoded in UTF-8");
-  }
-  if (request.parse_mode_ == nullptr) {
-    return make_error(400, "Parse mode must be non-empty");
-  }
-
-  auto r_entities = [&]() -> Result<vector<MessageEntity>> {
-    if (utf8_length(request.text_) > 65536) {
-      return Status::Error("Text is too long");
-    }
-    switch (request.parse_mode_->get_id()) {
-      case td_api::textParseModeHTML::ID:
-        return parse_html(request.text_);
-      case td_api::textParseModeMarkdown::ID: {
-        auto version = static_cast<const td_api::textParseModeMarkdown *>(request.parse_mode_.get())->version_;
-        if (version == 0 || version == 1) {
-          return parse_markdown(request.text_);
-        }
-        if (version == 2) {
-          return parse_markdown_v2(request.text_);
-        }
-        return Status::Error("Wrong Markdown version specified");
-      }
-      default:
-        UNREACHABLE();
-        return Status::Error(500, "Unknown parse mode");
-    }
-  }();
-  if (r_entities.is_error()) {
-    return make_error(400, PSLICE() << "Can't parse entities: " << r_entities.error().message());
-  }
-
-  return td_api::make_object<td_api::formattedText>(std::move(request.text_),
-                                                    get_text_entities_object(nullptr, r_entities.ok(), false, -1));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::parseMarkdown &request) {
-  if (request.text_ == nullptr) {
-    return make_error(400, "Text must be non-empty");
-  }
-
-  auto r_entities = get_message_entities(nullptr, std::move(request.text_->entities_), true);
-  if (r_entities.is_error()) {
-    return make_error(400, r_entities.error().message());
-  }
-  auto entities = r_entities.move_as_ok();
-  auto status = fix_formatted_text(request.text_->text_, entities, true, true, true, true, true);
-  if (status.is_error()) {
-    return make_error(400, status.message());
-  }
-
-  auto parsed_text = parse_markdown_v3({std::move(request.text_->text_), std::move(entities)});
-  fix_formatted_text(parsed_text.text, parsed_text.entities, true, true, true, true, true).ensure();
-  return get_formatted_text_object(nullptr, parsed_text, false, std::numeric_limits<int32>::max());
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getOption &request) {
-  if (!is_synchronous_request(&request)) {
-    return make_error(400, "The option can't be get synchronously");
-  }
-  return OptionManager::get_option_synchronously(request.name_);
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::getMarkdownText &request) {
-  if (request.text_ == nullptr) {
-    return make_error(400, "Text must be non-empty");
-  }
-
-  auto r_entities = get_message_entities(nullptr, std::move(request.text_->entities_));
-  if (r_entities.is_error()) {
-    return make_error(400, r_entities.error().message());
-  }
-  auto entities = r_entities.move_as_ok();
-  auto status = fix_formatted_text(request.text_->text_, entities, true, true, true, true, true);
-  if (status.is_error()) {
-    return make_error(400, status.message());
-  }
-
-  return get_formatted_text_object(nullptr, get_markdown_v3({std::move(request.text_->text_), std::move(entities)}),
-                                   false, std::numeric_limits<int32>::max());
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::searchStringsByPrefix &request) {
-  if (!clean_input_string(request.query_)) {
-    return make_error(400, "Strings must be encoded in UTF-8");
-  }
-  for (auto &str : request.strings_) {
-    if (!clean_input_string(str)) {
-      return make_error(400, "Strings must be encoded in UTF-8");
-    }
-  }
-  int32 total_count = 0;
-  auto result = search_strings_by_prefix(std::move(request.strings_), std::move(request.query_), request.limit_,
-                                         !request.return_none_for_empty_query_, total_count);
-  return td_api::make_object<td_api::foundPositions>(total_count, std::move(result));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::checkQuickReplyShortcutName &request) {
-  // don't check name UTF-8 correctness
-  auto status = QuickReplyManager::check_shortcut_name(request.name_);
-  if (status.is_ok()) {
-    return td_api::make_object<td_api::ok>();
-  }
-  return make_error(200, status.message());
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getCountryFlagEmoji &request) {
-  // don't check country code UTF-8 correctness
-  return td_api::make_object<td_api::text>(CountryInfoManager::get_country_flag_emoji(request.country_code_));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getFileMimeType &request) {
-  // don't check file name UTF-8 correctness
-  return td_api::make_object<td_api::text>(MimeType::from_extension(PathView(request.file_name_).extension()));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getFileExtension &request) {
-  // don't check MIME type UTF-8 correctness
-  return td_api::make_object<td_api::text>(MimeType::to_extension(request.mime_type_));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::cleanFileName &request) {
-  // don't check file name UTF-8 correctness
-  return td_api::make_object<td_api::text>(clean_filename(request.file_name_));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getLanguagePackString &request) {
-  return LanguagePackManager::get_language_pack_string(
-      request.language_pack_database_path_, request.localization_target_, request.language_pack_id_, request.key_);
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::getPhoneNumberInfoSync &request) {
-  // don't check language_code/phone number UTF-8 correctness
-  return CountryInfoManager::get_phone_number_info_sync(request.language_code_,
-                                                        std::move(request.phone_number_prefix_));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getPushReceiverId &request) {
-  // don't check push payload UTF-8 correctness
-  auto r_push_receiver_id = NotificationManager::get_push_receiver_id(request.payload_);
-  if (r_push_receiver_id.is_error()) {
-    VLOG(notifications) << "Failed to get push notification receiver from \"" << format::escaped(request.payload_)
-                        << '"';
-    return make_error(r_push_receiver_id.error().code(), r_push_receiver_id.error().message());
-  }
-  return td_api::make_object<td_api::pushReceiverId>(r_push_receiver_id.ok());
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(
-    const td_api::getChatFolderDefaultIconName &request) {
-  if (request.folder_ == nullptr) {
-    return make_error(400, "Chat folder must be non-empty");
-  }
-  if (request.folder_->icon_ != nullptr && !check_utf8(request.folder_->icon_->name_)) {
-    return make_error(400, "Chat folder icon name must be encoded in UTF-8");
-  }
-  return td_api::make_object<td_api::chatFolderIcon>(DialogFilter::get_default_icon_name(request.folder_.get()));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::getJsonValue &request) {
-  if (!check_utf8(request.json_)) {
-    return make_error(400, "JSON has invalid encoding");
-  }
-  auto result = get_json_value(request.json_);
-  if (result.is_error()) {
-    return make_error(400, result.error().message());
-  } else {
-    return result.move_as_ok();
-  }
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getJsonString &request) {
-  return td_api::make_object<td_api::text>(get_json_string(request.json_value_.get()));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(
-    const td_api::getThemeParametersJsonString &request) {
-  return td_api::make_object<td_api::text>(ThemeManager::get_theme_parameters_json_string(request.theme_));
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::setLogStream &request) {
-  auto result = Logging::set_current_stream(std::move(request.log_stream_));
-  if (result.is_ok()) {
-    return td_api::make_object<td_api::ok>();
-  } else {
-    return make_error(400, result.message());
-  }
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getLogStream &request) {
-  auto result = Logging::get_current_stream();
-  if (result.is_ok()) {
-    return result.move_as_ok();
-  } else {
-    return make_error(400, result.error().message());
-  }
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::setLogVerbosityLevel &request) {
-  auto result = Logging::set_verbosity_level(static_cast<int>(request.new_verbosity_level_));
-  if (result.is_ok()) {
-    return td_api::make_object<td_api::ok>();
-  } else {
-    return make_error(400, result.message());
-  }
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getLogVerbosityLevel &request) {
-  return td_api::make_object<td_api::logVerbosityLevel>(Logging::get_verbosity_level());
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getLogTags &request) {
-  return td_api::make_object<td_api::logTags>(Logging::get_tags());
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::setLogTagVerbosityLevel &request) {
-  auto result = Logging::set_tag_verbosity_level(request.tag_, static_cast<int>(request.new_verbosity_level_));
-  if (result.is_ok()) {
-    return td_api::make_object<td_api::ok>();
-  } else {
-    return make_error(400, result.message());
-  }
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::getLogTagVerbosityLevel &request) {
-  auto result = Logging::get_tag_verbosity_level(request.tag_);
-  if (result.is_ok()) {
-    return td_api::make_object<td_api::logVerbosityLevel>(result.ok());
-  } else {
-    return make_error(400, result.error().message());
-  }
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(const td_api::addLogMessage &request) {
-  Logging::add_message(request.verbosity_level_, request.text_);
-  return td_api::make_object<td_api::ok>();
-}
-
-td_api::object_ptr<td_api::Object> SynchronousRequests::do_request(td_api::testReturnError &request) {
-  if (request.error_ == nullptr) {
-    return td_api::make_object<td_api::error>(404, "Not Found");
-  }
-
-  return std::move(request.error_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/SynchronousRequests.h b/third-party/td/td/td/telegram/SynchronousRequests.h
deleted file mode 100644
index 351958a977..0000000000
--- a/third-party/td/td/td/telegram/SynchronousRequests.h
+++ /dev/null
@@ -1,89 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class SynchronousRequests {
- public:
-  static td_api::object_ptr<td_api::Object> run_request(td_api::object_ptr<td_api::Function> &&function);
-
-  static bool is_synchronous_request(const td_api::Function *function);
-
- private:
-  static td_api::object_ptr<td_api::error> make_error(int32 code, Slice error) {
-    return td_api::make_object<td_api::error>(code, error.str());
-  }
-
-  template <class T>
-  static td_api::object_ptr<td_api::Object> do_request(const T &request) {
-    return td_api::make_object<td_api::error>(400, "The method can't be executed synchronously");
-  }
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getOption &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::searchQuote &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getTextEntities &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::parseTextEntities &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::parseMarkdown &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::getMarkdownText &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::searchStringsByPrefix &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::checkQuickReplyShortcutName &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getCountryFlagEmoji &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getFileMimeType &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getFileExtension &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::cleanFileName &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getLanguagePackString &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::getPhoneNumberInfoSync &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getPushReceiverId &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getChatFolderDefaultIconName &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::getJsonValue &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getJsonString &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getThemeParametersJsonString &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::setLogStream &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getLogStream &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::setLogVerbosityLevel &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getLogVerbosityLevel &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getLogTags &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::setLogTagVerbosityLevel &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::getLogTagVerbosityLevel &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(const td_api::addLogMessage &request);
-
-  static td_api::object_ptr<td_api::Object> do_request(td_api::testReturnError &request);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TargetDialogTypes.cpp b/third-party/td/td/td/telegram/TargetDialogTypes.cpp
deleted file mode 100644
index 91ab5c8ebc..0000000000
--- a/third-party/td/td/td/telegram/TargetDialogTypes.cpp
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TargetDialogTypes.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-TargetDialogTypes::TargetDialogTypes(const vector<telegram_api::object_ptr<telegram_api::InlineQueryPeerType>> &types) {
-  for (const auto &peer_type : types) {
-    CHECK(peer_type != nullptr);
-    switch (peer_type->get_id()) {
-      case telegram_api::inlineQueryPeerTypePM::ID:
-        mask_ |= USERS_MASK;
-        break;
-      case telegram_api::inlineQueryPeerTypeBotPM::ID:
-        mask_ |= BOTS_MASK;
-        break;
-      case telegram_api::inlineQueryPeerTypeChat::ID:
-      case telegram_api::inlineQueryPeerTypeMegagroup::ID:
-        mask_ |= CHATS_MASK;
-        break;
-      case telegram_api::inlineQueryPeerTypeBroadcast::ID:
-        mask_ |= BROADCASTS_MASK;
-        break;
-      default:
-        LOG(ERROR) << "Receive " << to_string(peer_type);
-    }
-  }
-}
-
-Result<TargetDialogTypes> TargetDialogTypes::get_target_dialog_types(
-    const td_api::object_ptr<td_api::targetChatTypes> &types) {
-  int64 mask = 0;
-  if (types != nullptr) {
-    if (types->allow_user_chats_) {
-      mask |= USERS_MASK;
-    }
-    if (types->allow_bot_chats_) {
-      mask |= BOTS_MASK;
-    }
-    if (types->allow_group_chats_) {
-      mask |= CHATS_MASK;
-    }
-    if (types->allow_channel_chats_) {
-      mask |= BROADCASTS_MASK;
-    }
-  }
-  if (mask == 0) {
-    return Status::Error(400, "At least one chat type must be allowed");
-  }
-  return TargetDialogTypes(mask);
-}
-
-vector<telegram_api::object_ptr<telegram_api::InlineQueryPeerType>> TargetDialogTypes::get_input_peer_types() const {
-  vector<telegram_api::object_ptr<telegram_api::InlineQueryPeerType>> peer_types;
-  if (mask_ == FULL_MASK) {
-    return peer_types;
-  }
-  if ((mask_ & USERS_MASK) != 0) {
-    peer_types.push_back(telegram_api::make_object<telegram_api::inlineQueryPeerTypePM>());
-  }
-  if ((mask_ & BOTS_MASK) != 0) {
-    peer_types.push_back(telegram_api::make_object<telegram_api::inlineQueryPeerTypeBotPM>());
-  }
-  if ((mask_ & CHATS_MASK) != 0) {
-    peer_types.push_back(telegram_api::make_object<telegram_api::inlineQueryPeerTypeChat>());
-    peer_types.push_back(telegram_api::make_object<telegram_api::inlineQueryPeerTypeMegagroup>());
-  }
-  if ((mask_ & BROADCASTS_MASK) != 0) {
-    peer_types.push_back(telegram_api::make_object<telegram_api::inlineQueryPeerTypeBroadcast>());
-  }
-  return peer_types;
-}
-
-td_api::object_ptr<td_api::targetChatTypes> TargetDialogTypes::get_target_chat_types_object() const {
-  auto mask = get_full_mask();
-  return td_api::make_object<td_api::targetChatTypes>((mask & USERS_MASK) != 0, (mask & BOTS_MASK) != 0,
-                                                      (mask & CHATS_MASK) != 0, (mask & BROADCASTS_MASK) != 0);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const TargetDialogTypes &types) {
-  auto mask = types.get_full_mask();
-  if ((mask & TargetDialogTypes::USERS_MASK) != 0) {
-    string_builder << "(users)";
-  }
-  if ((mask & TargetDialogTypes::BOTS_MASK) != 0) {
-    string_builder << "(bots)";
-  }
-  if ((mask & TargetDialogTypes::CHATS_MASK) != 0) {
-    string_builder << "(groups)";
-  }
-  if ((mask & TargetDialogTypes::BROADCASTS_MASK) != 0) {
-    string_builder << "(channels)";
-  }
-  return string_builder;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TargetDialogTypes.h b/third-party/td/td/td/telegram/TargetDialogTypes.h
deleted file mode 100644
index b033f33dbb..0000000000
--- a/third-party/td/td/td/telegram/TargetDialogTypes.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class TargetDialogTypes {
-  int64 mask_ = 0;
-
-  static constexpr int64 USERS_MASK = 1;
-  static constexpr int64 BOTS_MASK = 2;
-  static constexpr int64 CHATS_MASK = 4;
-  static constexpr int64 BROADCASTS_MASK = 8;
-  static constexpr int64 FULL_MASK = USERS_MASK | BOTS_MASK | CHATS_MASK | BROADCASTS_MASK;
-
-  friend bool operator==(const TargetDialogTypes &lhs, const TargetDialogTypes &rhs);
-  friend bool operator!=(const TargetDialogTypes &lhs, const TargetDialogTypes &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const TargetDialogTypes &types);
-
- public:
-  TargetDialogTypes() = default;
-
-  explicit TargetDialogTypes(int64 mask) : mask_(mask) {
-  }
-
-  explicit TargetDialogTypes(const vector<telegram_api::object_ptr<telegram_api::InlineQueryPeerType>> &types);
-
-  static Result<TargetDialogTypes> get_target_dialog_types(const td_api::object_ptr<td_api::targetChatTypes> &types);
-
-  int64 get_mask() const {
-    return mask_;
-  }
-
-  int64 get_full_mask() const {
-    return mask_ == 0 ? FULL_MASK : mask_;
-  }
-
-  vector<telegram_api::object_ptr<telegram_api::InlineQueryPeerType>> get_input_peer_types() const;
-
-  td_api::object_ptr<td_api::targetChatTypes> get_target_chat_types_object() const;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const TargetDialogTypes &types);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Td.cpp b/third-party/td/td/td/telegram/Td.cpp
deleted file mode 100644
index 23a0e08c94..0000000000
--- a/third-party/td/td/td/telegram/Td.cpp
+++ /dev/null
@@ -1,1459 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Td.h"
-
-#include "td/telegram/AccountManager.h"
-#include "td/telegram/AlarmManager.h"
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/Application.h"
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/AutosaveManager.h"
-#include "td/telegram/BackgroundManager.h"
-#include "td/telegram/BoostManager.h"
-#include "td/telegram/BotInfoManager.h"
-#include "td/telegram/BotRecommendationManager.h"
-#include "td/telegram/BusinessConnectionManager.h"
-#include "td/telegram/BusinessManager.h"
-#include "td/telegram/CallbackQueriesManager.h"
-#include "td/telegram/CallManager.h"
-#include "td/telegram/ChannelRecommendationManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/CommonDialogManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/ConnectionStateManager.h"
-#include "td/telegram/CountryInfoManager.h"
-#include "td/telegram/DeviceTokenManager.h"
-#include "td/telegram/DialogActionManager.h"
-#include "td/telegram/DialogFilterManager.h"
-#include "td/telegram/DialogInviteLinkManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/DownloadManager.h"
-#include "td/telegram/DownloadManagerCallback.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/ForumTopicManager.h"
-#include "td/telegram/GameManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/HashtagHints.h"
-#include "td/telegram/InlineMessageManager.h"
-#include "td/telegram/InlineQueriesManager.h"
-#include "td/telegram/LanguagePackManager.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/MessageImportManager.h"
-#include "td/telegram/MessageQueryManager.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/ConnectionCreator.h"
-#include "td/telegram/net/MtprotoHeader.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/net/NetStatsManager.h"
-#include "td/telegram/net/Proxy.h"
-#include "td/telegram/net/TempAuthKeyWatchdog.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/NotificationSettingsManager.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/PasswordManager.h"
-#include "td/telegram/PeopleNearbyManager.h"
-#include "td/telegram/PhoneNumberManager.h"
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/PollManager.h"
-#include "td/telegram/PrivacyManager.h"
-#include "td/telegram/PromoDataManager.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/ReactionManager.h"
-#include "td/telegram/ReferralProgramManager.h"
-#include "td/telegram/RequestActor.h"
-#include "td/telegram/Requests.h"
-#include "td/telegram/SavedMessagesManager.h"
-#include "td/telegram/SecretChatsManager.h"
-#include "td/telegram/SecureManager.h"
-#include "td/telegram/SponsoredMessageManager.h"
-#include "td/telegram/StarGiftManager.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/StatisticsManager.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StorageManager.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/SuggestedActionManager.h"
-#include "td/telegram/SynchronousRequests.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/TermsOfServiceManager.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/TimeZoneManager.h"
-#include "td/telegram/TopDialogManager.h"
-#include "td/telegram/TranscriptionManager.h"
-#include "td/telegram/TranslationManager.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Version.h"
-#include "td/telegram/VideoNotesManager.h"
-#include "td/telegram/VideosManager.h"
-#include "td/telegram/VoiceNotesManager.h"
-#include "td/telegram/WebAppManager.h"
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/port/uname.h"
-#include "td/utils/Timer.h"
-
-namespace td {
-
-int VERBOSITY_NAME(td_init) = VERBOSITY_NAME(DEBUG) + 3;
-int VERBOSITY_NAME(td_requests) = VERBOSITY_NAME(INFO);
-
-void Td::ResultHandler::set_td(Td *td) {
-  CHECK(td_ == nullptr);
-  td_ = td;
-}
-
-void Td::ResultHandler::send_query(NetQueryPtr query) {
-  CHECK(!is_query_sent_);
-  is_query_sent_ = true;
-  td_->add_handler(query->id(), shared_from_this());
-  query->debug("Send to NetQueryDispatcher");
-  G()->net_query_dispatcher().dispatch(std::move(query));
-}
-
-Td::Td(unique_ptr<TdCallback> callback, Options options)
-    : callback_(std::move(callback)), td_options_(std::move(options)) {
-  CHECK(callback_ != nullptr);
-  LOG(INFO) << "Create Td with layer " << MTPROTO_LAYER << ", database version " << current_db_version()
-            << " and version " << static_cast<int32>(Version::Next) - 1 << " on "
-            << Scheduler::instance()->sched_count() << " threads";
-}
-
-Td::~Td() = default;
-
-bool Td::ignore_background_updates() const {
-  return can_ignore_background_updates_ && option_manager_->get_option_boolean("ignore_background_updates");
-}
-
-bool Td::is_authentication_request(int32 id) {
-  switch (id) {
-    case td_api::setTdlibParameters::ID:
-    case td_api::getAuthorizationState::ID:
-    case td_api::setAuthenticationPhoneNumber::ID:
-    case td_api::sendAuthenticationFirebaseSms::ID:
-    case td_api::reportAuthenticationCodeMissing::ID:
-    case td_api::setAuthenticationEmailAddress::ID:
-    case td_api::resendAuthenticationCode::ID:
-    case td_api::checkAuthenticationEmailCode::ID:
-    case td_api::checkAuthenticationCode::ID:
-    case td_api::registerUser::ID:
-    case td_api::requestQrCodeAuthentication::ID:
-    case td_api::resetAuthenticationEmailAddress::ID:
-    case td_api::checkAuthenticationPassword::ID:
-    case td_api::requestAuthenticationPasswordRecovery::ID:
-    case td_api::checkAuthenticationPasswordRecoveryCode::ID:
-    case td_api::recoverAuthenticationPassword::ID:
-    case td_api::deleteAccount::ID:
-    case td_api::logOut::ID:
-    case td_api::close::ID:
-    case td_api::destroy::ID:
-    case td_api::checkAuthenticationBotToken::ID:
-      return true;
-    default:
-      return false;
-  }
-}
-
-bool Td::is_preinitialization_request(int32 id) {
-  switch (id) {
-    case td_api::getCurrentState::ID:
-    case td_api::setAlarm::ID:
-    case td_api::testUseUpdate::ID:
-    case td_api::testCallEmpty::ID:
-    case td_api::testSquareInt::ID:
-    case td_api::testCallString::ID:
-    case td_api::testCallBytes::ID:
-    case td_api::testCallVectorInt::ID:
-    case td_api::testCallVectorIntObject::ID:
-    case td_api::testCallVectorString::ID:
-    case td_api::testCallVectorStringObject::ID:
-    case td_api::testProxy::ID:
-      return true;
-    default:
-      return false;
-  }
-}
-
-bool Td::is_preauthentication_request(int32 id) {
-  switch (id) {
-    case td_api::getInternalLink::ID:
-    case td_api::getInternalLinkType::ID:
-    case td_api::getLocalizationTargetInfo::ID:
-    case td_api::getLanguagePackInfo::ID:
-    case td_api::getLanguagePackStrings::ID:
-    case td_api::synchronizeLanguagePack::ID:
-    case td_api::addCustomServerLanguagePack::ID:
-    case td_api::setCustomLanguagePack::ID:
-    case td_api::editCustomLanguagePackInfo::ID:
-    case td_api::setCustomLanguagePackString::ID:
-    case td_api::deleteLanguagePack::ID:
-    case td_api::processPushNotification::ID:
-    case td_api::getOption::ID:
-    case td_api::setOption::ID:
-    case td_api::getStorageStatistics::ID:
-    case td_api::getStorageStatisticsFast::ID:
-    case td_api::getDatabaseStatistics::ID:
-    case td_api::setNetworkType::ID:
-    case td_api::getNetworkStatistics::ID:
-    case td_api::addNetworkStatistics::ID:
-    case td_api::resetNetworkStatistics::ID:
-    case td_api::setApplicationVerificationToken::ID:
-    case td_api::getCountries::ID:
-    case td_api::getCountryCode::ID:
-    case td_api::getPhoneNumberInfo::ID:
-    case td_api::getDeepLinkInfo::ID:
-    case td_api::getApplicationConfig::ID:
-    case td_api::saveApplicationLogEvent::ID:
-    case td_api::addProxy::ID:
-    case td_api::editProxy::ID:
-    case td_api::enableProxy::ID:
-    case td_api::disableProxy::ID:
-    case td_api::removeProxy::ID:
-    case td_api::getProxies::ID:
-    case td_api::getProxyLink::ID:
-    case td_api::pingProxy::ID:
-    case td_api::testNetwork::ID:
-      return true;
-    default:
-      return false;
-  }
-}
-
-td_api::object_ptr<td_api::AuthorizationState> Td::get_fake_authorization_state_object() const {
-  switch (state_) {
-    case State::WaitParameters:
-      return td_api::make_object<td_api::authorizationStateWaitTdlibParameters>();
-    case State::Run:
-      UNREACHABLE();
-      return nullptr;
-    case State::Close:
-      if (close_flag_ == 5) {
-        return td_api::make_object<td_api::authorizationStateClosed>();
-      } else {
-        return td_api::make_object<td_api::authorizationStateClosing>();
-      }
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-vector<td_api::object_ptr<td_api::Update>> Td::get_fake_current_state() const {
-  CHECK(state_ != State::Run);
-  vector<td_api::object_ptr<td_api::Update>> updates;
-  OptionManager::get_common_state(updates);
-  updates.push_back(td_api::make_object<td_api::updateAuthorizationState>(get_fake_authorization_state_object()));
-  return updates;
-}
-
-void Td::request(uint64 id, tl_object_ptr<td_api::Function> function) {
-  if (id == 0) {
-    LOG(ERROR) << "Ignore request with ID == 0: " << to_string(function);
-    return;
-  }
-
-  if (function == nullptr) {
-    return callback_->on_error(id, make_error(400, "Request is empty"));
-  }
-
-  VLOG(td_requests) << "Receive request " << id << ": " << to_string(function);
-  request_set_.emplace(id, function->get_id());
-  if (SynchronousRequests::is_synchronous_request(function.get())) {
-    // send response synchronously
-    return send_result(id, static_request(std::move(function)));
-  }
-
-  run_request(id, std::move(function));
-}
-
-void Td::run_request(uint64 id, td_api::object_ptr<td_api::Function> function) {
-  if (set_parameters_request_id_ > 0) {
-    pending_set_parameters_requests_.emplace_back(id, std::move(function));
-    return;
-  }
-
-  int32 function_id = function->get_id();
-  if (state_ != State::Run) {
-    switch (function_id) {
-      case td_api::getAuthorizationState::ID:
-        // send response synchronously to prevent "Request aborted"
-        return send_result(id, get_fake_authorization_state_object());
-      case td_api::getCurrentState::ID:
-        // send response synchronously to prevent "Request aborted"
-        return send_result(id, td_api::make_object<td_api::updates>(get_fake_current_state()));
-      case td_api::close::ID:
-        // need to send response before actual closing
-        send_closure(actor_id(this), &Td::send_result, id, td_api::make_object<td_api::ok>());
-        send_closure(actor_id(this), &Td::close);
-        return;
-      default:
-        break;
-    }
-  }
-  switch (state_) {
-    case State::WaitParameters: {
-      switch (function_id) {
-        case td_api::setTdlibParameters::ID: {
-          auto r_parameters = get_parameters(move_tl_object_as<td_api::setTdlibParameters>(function));
-          if (r_parameters.is_error()) {
-            return send_closure(actor_id(this), &Td::send_error, id, r_parameters.move_as_error());
-          }
-          auto parameters = r_parameters.move_as_ok();
-
-          VLOG(td_init) << "Begin to open database";
-          set_parameters_request_id_ = id;
-          can_ignore_background_updates_ = !parameters.second.use_chat_info_database_ &&
-                                           !parameters.second.use_message_database_ &&
-                                           !parameters.first.use_secret_chats_;
-
-          auto promise = PromiseCreator::lambda(
-              [actor_id = actor_id(this), parameters = std::move(parameters.first),
-               parent = create_reference()](Result<TdDb::OpenedDatabase> r_opened_database) mutable {
-                send_closure(actor_id, &Td::init, std::move(parameters), std::move(r_opened_database));
-              });
-          auto use_sqlite_pmc = parameters.second.use_message_database_ || parameters.second.use_chat_info_database_ ||
-                                parameters.second.use_file_database_;
-          return TdDb::open(use_sqlite_pmc ? G()->get_database_scheduler_id() : G()->get_slow_net_scheduler_id(),
-                            std::move(parameters.second), std::move(promise));
-        }
-        default:
-          if (is_preinitialization_request(function_id)) {
-            return requests_->run_request(id, std::move(function));
-          }
-          if (is_preauthentication_request(function_id)) {
-            pending_preauthentication_requests_.emplace_back(id, std::move(function));
-            return;
-          }
-          return send_error_impl(
-              id, make_error(400, "Initialization parameters are needed: call setTdlibParameters first"));
-      }
-      UNREACHABLE();
-    }
-    case State::Close:
-      return send_error_impl(id, make_error(destroy_flag_ ? 401 : 500,
-                                            destroy_flag_ ? CSlice("Unauthorized") : CSlice("Request aborted")));
-    case State::Run:
-      if (!auth_manager_->is_authorized() && !is_preauthentication_request(function_id) &&
-          !is_preinitialization_request(function_id) && !is_authentication_request(function_id)) {
-        return send_error_impl(id, make_error(401, "Unauthorized"));
-      }
-      return requests_->run_request(id, std::move(function));
-    default:
-      UNREACHABLE();
-  }
-}
-
-td_api::object_ptr<td_api::Object> Td::static_request(td_api::object_ptr<td_api::Function> function) {
-  return SynchronousRequests::run_request(std::move(function));
-}
-
-void Td::add_handler(uint64 id, std::shared_ptr<ResultHandler> handler) {
-  result_handlers_[id] = std::move(handler);
-}
-
-std::shared_ptr<Td::ResultHandler> Td::extract_handler(uint64 id) {
-  auto it = result_handlers_.find(id);
-  if (it == result_handlers_.end()) {
-    return nullptr;
-  }
-  auto result = std::move(it->second);
-  result_handlers_.erase(it);
-  return result;
-}
-
-void Td::on_update(telegram_api::object_ptr<telegram_api::Updates> updates, uint64 auth_key_id) {
-  if (close_flag_ > 1) {
-    return;
-  }
-
-  if (updates == nullptr) {
-    if (auth_manager_->is_bot()) {
-      G()->net_query_dispatcher().update_mtproto_header();
-    } else {
-      // this could be a min-channel update
-      updates_manager_->schedule_get_difference("failed to fetch updates");
-    }
-  } else {
-    updates_manager_->on_update_from_auth_key_id(auth_key_id);
-    updates_manager_->on_get_updates(std::move(updates), Promise<Unit>());
-    if (auth_manager_->is_bot() && auth_manager_->is_authorized()) {
-      online_manager_->set_is_bot_online(true);
-    }
-  }
-}
-
-void Td::on_result(NetQueryPtr query) {
-  query->debug("Td: received from DcManager");
-  VLOG(net_query) << "Receive result of " << query;
-  if (close_flag_ > 1) {
-    return;
-  }
-
-  auto handler = extract_handler(query->id());
-  if (handler != nullptr) {
-    CHECK(query->is_ready());
-    if (query->is_ok()) {
-      handler->on_result(query->move_as_ok());
-    } else {
-      handler->on_error(query->move_as_error());
-    }
-  } else {
-    if (!query->is_ok() || query->ok_tl_constructor() != telegram_api::upload_file::ID) {
-      LOG(WARNING) << query << " is ignored: no handlers found";
-    }
-    query->clear();
-  }
-}
-
-void Td::start_up() {
-  uint64 check_endianness = 0x0706050403020100;
-  auto check_endianness_raw = reinterpret_cast<const unsigned char *>(&check_endianness);
-  for (unsigned char c = 0; c < 8; c++) {
-    auto symbol = check_endianness_raw[static_cast<size_t>(c)];
-    LOG_IF(FATAL, symbol != c) << "TDLib requires little-endian platform";
-  }
-
-  requests_ = make_unique<Requests>(this);
-
-  VLOG(td_init) << "Create Global";
-  old_context_ = set_context(std::make_shared<Global>());
-  G()->set_net_query_stats(td_options_.net_query_stats);
-  inc_request_actor_refcnt();  // guard
-  inc_actor_refcnt();          // guard
-
-  alarm_manager_ = create_actor<AlarmManager>("AlarmManager", create_reference());
-
-  CHECK(state_ == State::WaitParameters);
-  for (auto &update : get_fake_current_state()) {
-    send_update(std::move(update));
-  }
-}
-
-void Td::tear_down() {
-  LOG_CHECK(close_flag_ == 5) << close_flag_;
-}
-
-void Td::hangup_shared() {
-  auto token = get_link_token();
-  auto type = Container<int>::type_from_id(token);
-
-  if (type == RequestActorIdType) {
-    request_actors_.erase(token);
-    dec_request_actor_refcnt();
-  } else if (type == ActorIdType) {
-    dec_actor_refcnt();
-  } else {
-    LOG(FATAL) << "Unknown hangup_shared of type " << type;
-  }
-}
-
-void Td::hangup() {
-  LOG(INFO) << "Receive Td::hangup";
-  close();
-  dec_stop_cnt();
-}
-
-ActorShared<Td> Td::create_reference() {
-  inc_actor_refcnt();
-  return actor_shared(this, ActorIdType);
-}
-
-void Td::inc_actor_refcnt() {
-  actor_refcnt_++;
-}
-
-void Td::dec_actor_refcnt() {
-  actor_refcnt_--;
-  if (actor_refcnt_ < 3) {
-    LOG(DEBUG) << "Decrease reference count to " << actor_refcnt_;
-  }
-  if (actor_refcnt_ == 0) {
-    if (close_flag_ == 2) {
-      create_reference();
-      close_flag_ = 3;
-    } else if (close_flag_ == 3) {
-      LOG(INFO) << "All actors were closed";
-      Timer timer;
-      auto reset_manager = [&timer](auto &manager, Slice name) {
-        manager.reset();
-        LOG(DEBUG) << name << " was cleared" << timer;
-      };
-      reset_manager(account_manager_, "AccountManager");
-      reset_manager(animations_manager_, "AnimationsManager");
-      reset_manager(attach_menu_manager_, "AttachMenuManager");
-      reset_manager(audios_manager_, "AudiosManager");
-      reset_manager(auth_manager_, "AuthManager");
-      reset_manager(autosave_manager_, "AutosaveManager");
-      reset_manager(background_manager_, "BackgroundManager");
-      reset_manager(boost_manager_, "BoostManager");
-      reset_manager(bot_info_manager_, "BotInfoManager");
-      reset_manager(bot_recommendation_manager_, "BotRecommendationManager");
-      reset_manager(business_connection_manager_, "BusinessConnectionManager");
-      reset_manager(business_manager_, "BusinessManager");
-      reset_manager(call_manager_, "CallManager");
-      reset_manager(callback_queries_manager_, "CallbackQueriesManager");
-      reset_manager(channel_recommendation_manager_, "ChannelRecommendationManager");
-      reset_manager(chat_manager_, "ChatManager");
-      reset_manager(common_dialog_manager_, "CommonDialogManager");
-      reset_manager(connection_state_manager_, "ConnectionStateManager");
-      reset_manager(country_info_manager_, "CountryInfoManager");
-      reset_manager(dialog_action_manager_, "DialogActionManager");
-      reset_manager(dialog_filter_manager_, "DialogFilterManager");
-      reset_manager(dialog_invite_link_manager_, "DialogInviteLinkManager");
-      reset_manager(dialog_manager_, "DialogManager");
-      reset_manager(dialog_participant_manager_, "DialogParticipantManager");
-      reset_manager(documents_manager_, "DocumentsManager");
-      reset_manager(download_manager_, "DownloadManager");
-      reset_manager(file_manager_, "FileManager");
-      reset_manager(file_reference_manager_, "FileReferenceManager");
-      reset_manager(forum_topic_manager_, "ForumTopicManager");
-      reset_manager(game_manager_, "GameManager");
-      reset_manager(group_call_manager_, "GroupCallManager");
-      reset_manager(inline_message_manager_, "InlineMessageManager");
-      reset_manager(inline_queries_manager_, "InlineQueriesManager");
-      reset_manager(link_manager_, "LinkManager");
-      reset_manager(message_import_manager_, "MessageImportManager");
-      reset_manager(message_query_manager_, "MessageQueryManager");
-      reset_manager(messages_manager_, "MessagesManager");
-      reset_manager(notification_manager_, "NotificationManager");
-      reset_manager(notification_settings_manager_, "NotificationSettingsManager");
-      reset_manager(online_manager_, "OnlineManager");
-      reset_manager(people_nearby_manager_, "PeopleNearbyManager");
-      reset_manager(phone_number_manager_, "PhoneNumberManager");
-      reset_manager(poll_manager_, "PollManager");
-      reset_manager(privacy_manager_, "PrivacyManager");
-      reset_manager(promo_data_manager_, "PromoDataManager");
-      reset_manager(quick_reply_manager_, "QuickReplyManager");
-      reset_manager(reaction_manager_, "ReactionManager");
-      reset_manager(referral_program_manager_, "ReferralProgramManager");
-      reset_manager(saved_messages_manager_, "SavedMessagesManager");
-      reset_manager(sponsored_message_manager_, "SponsoredMessageManager");
-      reset_manager(star_gift_manager_, "StarGiftManager");
-      reset_manager(star_manager_, "StarManager");
-      reset_manager(statistics_manager_, "StatisticsManager");
-      reset_manager(stickers_manager_, "StickersManager");
-      reset_manager(story_manager_, "StoryManager");
-      reset_manager(suggested_action_manager_, "SuggestedActionManager");
-      reset_manager(terms_of_service_manager_, "TermsOfServiceManager");
-      reset_manager(theme_manager_, "ThemeManager");
-      reset_manager(time_zone_manager_, "TimeZoneManager");
-      reset_manager(top_dialog_manager_, "TopDialogManager");
-      reset_manager(transcription_manager_, "TranscriptionManager");
-      reset_manager(translation_manager_, "TranslationManager");
-      reset_manager(updates_manager_, "UpdatesManager");
-      reset_manager(user_manager_, "UserManager");
-      reset_manager(video_notes_manager_, "VideoNotesManager");
-      reset_manager(videos_manager_, "VideosManager");
-      reset_manager(voice_notes_manager_, "VoiceNotesManager");
-      reset_manager(web_app_manager_, "WebAppManager");
-      reset_manager(web_pages_manager_, "WebPagesManager");
-
-      G()->set_option_manager(nullptr);
-      option_manager_.reset();
-      LOG(DEBUG) << "OptionManager was cleared" << timer;
-
-      G()->close_all(destroy_flag_,
-                     PromiseCreator::lambda([actor_id = create_reference()](Unit) mutable { actor_id.reset(); }));
-
-      // NetQueryDispatcher will be closed automatically
-      close_flag_ = 4;
-    } else if (close_flag_ == 4) {
-      on_closed();
-    } else {
-      UNREACHABLE();
-    }
-  }
-}
-
-void Td::on_closed() {
-  close_flag_ = 5;
-  send_update(
-      td_api::make_object<td_api::updateAuthorizationState>(td_api::make_object<td_api::authorizationStateClosed>()));
-  dec_stop_cnt();
-}
-
-void Td::dec_stop_cnt() {
-  stop_cnt_--;
-  if (stop_cnt_ == 0) {
-    LOG(INFO) << "Stop Td";
-    set_context(std::move(old_context_));
-    stop();
-  }
-}
-
-void Td::inc_request_actor_refcnt() {
-  request_actor_refcnt_++;
-}
-
-void Td::dec_request_actor_refcnt() {
-  request_actor_refcnt_--;
-  LOG(DEBUG) << "Decrease request actor count to " << request_actor_refcnt_;
-  if (request_actor_refcnt_ == 0) {
-    clear();
-    dec_actor_refcnt();  // remove guard
-  }
-}
-
-void Td::clear_requests() {
-  while (!request_set_.empty()) {
-    uint64 id = request_set_.begin()->first;
-    if (destroy_flag_) {
-      send_error_impl(id, make_error(401, "Unauthorized"));
-    } else {
-      send_error_impl(id, make_error(500, "Request aborted"));
-    }
-  }
-}
-
-void Td::clear() {
-  if (close_flag_ >= 2) {
-    return;
-  }
-
-  LOG(INFO) << "Clear Td";
-  close_flag_ = 2;
-
-  Timer timer;
-  if (!auth_manager_->is_bot()) {
-    if (destroy_flag_) {
-      notification_manager_->destroy_all_notifications();
-    } else {
-      notification_manager_->flush_all_notifications();
-    }
-  }
-
-  G()->net_query_creator().stop_check();
-  result_handlers_.clear();
-  LOG(DEBUG) << "Handlers were cleared" << timer;
-  G()->net_query_dispatcher().stop();
-  LOG(DEBUG) << "NetQueryDispatcher was stopped" << timer;
-  state_manager_.reset();
-  LOG(DEBUG) << "StateManager was cleared" << timer;
-  clear_requests();
-
-  auto reset_actor = [&timer](ActorOwn<Actor> actor) {
-    if (!actor.empty()) {
-      LOG(DEBUG) << "Start clearing " << actor.get().get_name() << timer;
-    }
-  };
-
-  // close all pure actors
-  reset_actor(ActorOwn<Actor>(std::move(alarm_manager_)));
-  reset_actor(ActorOwn<Actor>(std::move(cashtag_search_hints_)));
-  reset_actor(ActorOwn<Actor>(std::move(config_manager_)));
-  reset_actor(ActorOwn<Actor>(std::move(device_token_manager_)));
-  reset_actor(ActorOwn<Actor>(std::move(hashtag_hints_)));
-  reset_actor(ActorOwn<Actor>(std::move(hashtag_search_hints_)));
-  reset_actor(ActorOwn<Actor>(std::move(language_pack_manager_)));
-  reset_actor(ActorOwn<Actor>(std::move(net_stats_manager_)));
-  reset_actor(ActorOwn<Actor>(std::move(password_manager_)));
-  reset_actor(ActorOwn<Actor>(std::move(secure_manager_)));
-  reset_actor(ActorOwn<Actor>(std::move(secret_chats_manager_)));
-  reset_actor(ActorOwn<Actor>(std::move(storage_manager_)));
-
-  G()->set_connection_creator(ActorOwn<ConnectionCreator>());
-  LOG(DEBUG) << "ConnectionCreator was cleared" << timer;
-  G()->set_temp_auth_key_watchdog(ActorOwn<TempAuthKeyWatchdog>());
-  LOG(DEBUG) << "TempAuthKeyWatchdog was cleared" << timer;
-
-  // clear actors which are unique pointers
-  reset_actor(ActorOwn<Actor>(std::move(account_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(animations_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(attach_menu_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(auth_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(autosave_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(background_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(boost_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(bot_info_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(bot_recommendation_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(business_connection_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(business_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(call_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(channel_recommendation_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(chat_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(common_dialog_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(connection_state_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(country_info_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(dialog_action_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(dialog_filter_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(dialog_invite_link_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(dialog_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(dialog_participant_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(download_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(file_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(file_reference_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(forum_topic_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(game_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(group_call_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(inline_message_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(inline_queries_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(link_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(message_import_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(message_query_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(messages_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(notification_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(notification_settings_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(online_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(people_nearby_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(phone_number_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(poll_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(privacy_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(promo_data_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(quick_reply_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(reaction_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(referral_program_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(saved_messages_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(sponsored_message_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(star_gift_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(star_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(statistics_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(stickers_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(story_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(suggested_action_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(terms_of_service_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(theme_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(time_zone_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(top_dialog_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(transcription_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(translation_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(updates_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(user_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(video_notes_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(voice_notes_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(web_app_manager_actor_)));
-  reset_actor(ActorOwn<Actor>(std::move(web_pages_manager_actor_)));
-  LOG(DEBUG) << "All actors were cleared" << timer;
-}
-
-void Td::close() {
-  close_impl(false);
-}
-
-void Td::destroy() {
-  close_impl(true);
-}
-
-void Td::close_impl(bool destroy_flag) {
-  destroy_flag_ |= destroy_flag;
-  if (close_flag_) {
-    return;
-  }
-
-  LOG(WARNING) << (destroy_flag ? "Destroy" : "Close") << " Td in state " << static_cast<int32>(state_);
-  if (state_ == State::WaitParameters) {
-    state_ = State::Close;
-    close_flag_ = 4;
-    G()->set_close_flag();
-    clear_requests();
-    alarm_manager_.reset();
-    send_update(td_api::make_object<td_api::updateAuthorizationState>(
-        td_api::make_object<td_api::authorizationStateClosing>()));
-
-    request_actors_.clear();
-    return send_closure_later(actor_id(this), &Td::dec_request_actor_refcnt);  // remove guard
-  }
-
-  state_ = State::Close;
-  close_flag_ = 1;
-  G()->set_close_flag();
-  send_closure(auth_manager_actor_, &AuthManager::on_closing, destroy_flag);
-  updates_manager_->timeout_expired();  // save PTS and QTS
-
-  // wait till all request_actors will stop
-  request_actors_.clear();
-  G()->td_db()->flush_all();
-  send_closure_later(actor_id(this), &Td::dec_request_actor_refcnt);  // remove guard
-}
-
-template <class T>
-void Td::complete_pending_preauthentication_requests(const T &func) {
-  for (auto &request : pending_preauthentication_requests_) {
-    if (request.second != nullptr && func(request.second->get_id())) {
-      requests_->run_request(request.first, std::move(request.second));
-      request.second = nullptr;
-    }
-  }
-}
-
-void Td::finish_set_parameters() {
-  CHECK(set_parameters_request_id_ != 0);
-  set_parameters_request_id_ = 0;
-
-  if (pending_set_parameters_requests_.empty()) {
-    return;
-  }
-
-  VLOG(td_init) << "Continue to execute " << pending_set_parameters_requests_.size() << " pending requests";
-  auto requests = std::move(pending_set_parameters_requests_);
-  for (auto &request : requests) {
-    run_request(request.first, std::move(request.second));
-  }
-  CHECK(pending_set_parameters_requests_.size() < requests.size());
-}
-
-void Td::init(Parameters parameters, Result<TdDb::OpenedDatabase> r_opened_database) {
-  CHECK(set_parameters_request_id_ != 0);
-  if (r_opened_database.is_error()) {
-    LOG(WARNING) << "Failed to open database: " << r_opened_database.error();
-    send_closure(actor_id(this), &Td::send_error, set_parameters_request_id_, r_opened_database.move_as_error());
-    return finish_set_parameters();
-  }
-  auto events = r_opened_database.move_as_ok();
-
-  VLOG(td_init) << "Successfully inited database";
-
-  if (state_ == State::Close) {
-    LOG(INFO) << "Close asynchronously opened database";
-    auto database_ptr = events.database.get();
-    auto promise = PromiseCreator::lambda([database = std::move(events.database)](Unit) {
-      // destroy the database after closing
-    });
-    database_ptr->close(
-        database_ptr->use_file_database() ? G()->get_database_scheduler_id() : G()->get_slow_net_scheduler_id(),
-        destroy_flag_, std::move(promise));
-    return finish_set_parameters();
-  }
-
-  G()->init(actor_id(this), std::move(events.database)).ensure();
-
-  init_options_and_network();
-
-  // we need to process td_api::getOption along with td_api::setOption for consistency
-  // we need to process td_api::setOption before managers and MTProto header are created,
-  // because their initialization may be affected by the options
-  complete_pending_preauthentication_requests([](int32 id) {
-    switch (id) {
-      case td_api::getOption::ID:
-      case td_api::setOption::ID:
-        return true;
-      default:
-        return false;
-    }
-  });
-
-  if (!option_manager_->get_option_boolean("disable_network_statistics")) {
-    net_stats_manager_ = create_actor<NetStatsManager>("NetStatsManager", create_reference());
-
-    // How else could I let two actor know about each other, without quite complex async logic?
-    auto net_stats_manager_ptr = net_stats_manager_.get_actor_unsafe();
-    net_stats_manager_ptr->init();
-    G()->connection_creator().get_actor_unsafe()->set_net_stats_callback(
-        net_stats_manager_ptr->get_common_stats_callback(), net_stats_manager_ptr->get_media_stats_callback());
-    G()->set_net_stats_file_callbacks(net_stats_manager_ptr->get_file_stats_callbacks());
-  }
-
-  complete_pending_preauthentication_requests([](int32 id) {
-    switch (id) {
-      case td_api::getNetworkStatistics::ID:
-      case td_api::addNetworkStatistics::ID:
-      case td_api::resetNetworkStatistics::ID:
-        return true;
-      default:
-        return false;
-    }
-  });
-
-  if (events.since_last_open >= 3600) {
-    auto old_since_last_open = option_manager_->get_option_integer("since_last_open");
-    if (events.since_last_open > old_since_last_open) {
-      option_manager_->set_option_integer("since_last_open", events.since_last_open);
-    }
-  }
-
-  options_.language_pack = option_manager_->get_option_string("localization_target");
-  options_.language_code = option_manager_->get_option_string("language_pack_id");
-  options_.parameters = option_manager_->get_option_string("connection_parameters");
-  options_.tz_offset = static_cast<int32>(option_manager_->get_option_integer("utc_time_offset"));
-  options_.is_emulator = option_manager_->get_option_boolean("is_emulator");
-  // options_.proxy = Proxy();
-  G()->set_mtproto_header(make_unique<MtprotoHeader>(options_));
-  G()->set_store_all_files_in_files_directory(
-      option_manager_->get_option_boolean("store_all_files_in_files_directory"));
-
-  VLOG(td_init) << "Create NetQueryDispatcher";
-  auto net_query_dispatcher = make_unique<NetQueryDispatcher>([&] { return create_reference(); });
-  G()->set_net_query_dispatcher(std::move(net_query_dispatcher));
-
-  complete_pending_preauthentication_requests([](int32 id) {
-    // pingProxy uses NetQueryDispatcher to get main_dc_id, so must be called after NetQueryDispatcher is created
-    return id == td_api::pingProxy::ID;
-  });
-
-  VLOG(td_init) << "Create AuthManager";
-  auth_manager_ = td::make_unique<AuthManager>(parameters.api_id_, parameters.api_hash_, create_reference());
-  auth_manager_actor_ = register_actor("AuthManager", auth_manager_.get());
-  G()->set_auth_manager(auth_manager_actor_.get());
-
-  init_file_manager();
-
-  init_non_actor_managers();
-
-  init_managers();
-
-  init_pure_actor_managers();
-
-  secret_chats_manager_ =
-      create_actor<SecretChatsManager>("SecretChatsManager", create_reference(), parameters.use_secret_chats_);
-  G()->set_secret_chats_manager(secret_chats_manager_.get());
-
-  storage_manager_ = create_actor<StorageManager>("StorageManager", create_reference(), G()->get_gc_scheduler_id());
-  G()->set_storage_manager(storage_manager_.get());
-
-  option_manager_->on_td_inited();
-
-  process_binlog_events(std::move(events));
-
-  VLOG(td_init) << "Ping datacenter";
-  if (!auth_manager_->is_authorized()) {
-    country_info_manager_->get_current_country_code(Promise<string>());
-  } else {
-    updates_manager_->get_difference("init");
-  }
-
-  complete_pending_preauthentication_requests([](int32 id) { return true; });
-
-  VLOG(td_init) << "Finish initialization";
-
-  state_ = State::Run;
-
-  send_closure(actor_id(this), &Td::send_result, set_parameters_request_id_, td_api::make_object<td_api::ok>());
-  return finish_set_parameters();
-}
-
-void Td::process_binlog_events(TdDb::OpenedDatabase &&events) {
-  VLOG(td_init) << "Send binlog events";
-  for (auto &event : events.user_events) {
-    user_manager_->on_binlog_user_event(std::move(event));
-  }
-
-  for (auto &event : events.channel_events) {
-    chat_manager_->on_binlog_channel_event(std::move(event));
-  }
-
-  // chats may contain links to channels, so should be inited after
-  for (auto &event : events.chat_events) {
-    chat_manager_->on_binlog_chat_event(std::move(event));
-  }
-
-  for (auto &event : events.secret_chat_events) {
-    user_manager_->on_binlog_secret_chat_event(std::move(event));
-  }
-
-  for (auto &event : events.web_page_events) {
-    web_pages_manager_->on_binlog_web_page_event(std::move(event));
-  }
-
-  for (auto &event : events.save_app_log_events) {
-    on_save_app_log_binlog_event(this, std::move(event));
-  }
-
-  // Send binlog events to managers
-  //
-  // 1. Actors must receive all binlog events before other queries.
-  //
-  // -- All actors have one "entry point". So there is only one way to send query to them. So all queries are ordered
-  // for each Actor.
-  //
-  // 2. An actor must not make some decisions before all binlog events are processed.
-  // For example, SecretChatActor must not send RequestKey, before it receives log event with RequestKey and understands
-  // that RequestKey was already sent.
-  //
-  // 3. During replay of binlog some queries may be sent to other actors. They shouldn't process such events before all
-  // their binlog events are processed. So actor may receive some old queries. It must be in its actual state in
-  // order to handle them properly.
-  //
-  // -- Use send_closure_later, so actors don't even start process binlog events, before all binlog events are sent
-
-  for (auto &event : events.to_secret_chats_manager) {
-    send_closure_later(secret_chats_manager_, &SecretChatsManager::replay_binlog_event, std::move(event));
-  }
-
-  send_closure_later(account_manager_actor_, &AccountManager::on_binlog_events, std::move(events.to_account_manager));
-
-  send_closure_later(poll_manager_actor_, &PollManager::on_binlog_events, std::move(events.to_poll_manager));
-
-  send_closure_later(dialog_manager_actor_, &DialogManager::on_binlog_events, std::move(events.to_dialog_manager));
-
-  send_closure_later(message_query_manager_actor_, &MessageQueryManager::on_binlog_events,
-                     std::move(events.to_message_query_manager));
-
-  send_closure_later(messages_manager_actor_, &MessagesManager::on_binlog_events,
-                     std::move(events.to_messages_manager));
-
-  send_closure_later(story_manager_actor_, &StoryManager::on_binlog_events, std::move(events.to_story_manager));
-
-  send_closure_later(notification_manager_actor_, &NotificationManager::on_binlog_events,
-                     std::move(events.to_notification_manager));
-
-  send_closure_later(notification_settings_manager_actor_, &NotificationSettingsManager::on_binlog_events,
-                     std::move(events.to_notification_settings_manager));
-
-  send_closure(secret_chats_manager_, &SecretChatsManager::binlog_replay_finish);
-}
-
-void Td::init_options_and_network() {
-  VLOG(td_init) << "Create StateManager";
-  state_manager_ = create_actor<StateManager>("State manager", create_reference());
-  G()->set_state_manager(state_manager_.get());
-
-  VLOG(td_init) << "Create OptionManager";
-  option_manager_ = make_unique<OptionManager>(this);
-  G()->set_option_manager(option_manager_.get());
-
-  VLOG(td_init) << "Create ConnectionCreator";
-  G()->set_connection_creator(create_actor<ConnectionCreator>("ConnectionCreator", create_reference()));
-
-  complete_pending_preauthentication_requests([](int32 id) {
-    switch (id) {
-      case td_api::setNetworkType::ID:
-      case td_api::addProxy::ID:
-      case td_api::editProxy::ID:
-      case td_api::enableProxy::ID:
-      case td_api::disableProxy::ID:
-      case td_api::removeProxy::ID:
-      case td_api::getProxies::ID:
-      case td_api::getProxyLink::ID:
-        return true;
-      default:
-        return false;
-    }
-  });
-
-  VLOG(td_init) << "Create TempAuthKeyWatchdog";
-  G()->set_temp_auth_key_watchdog(create_actor<TempAuthKeyWatchdog>("TempAuthKeyWatchdog", create_reference()));
-
-  VLOG(td_init) << "Create ConfigManager";
-  config_manager_ = create_actor<ConfigManager>("ConfigManager", create_reference());
-  G()->set_config_manager(config_manager_.get());
-
-  VLOG(td_init) << "Create OnlineManager";
-  online_manager_ = make_unique<OnlineManager>(this, create_reference());
-  online_manager_actor_ = register_actor("OnlineManager", online_manager_.get());
-  G()->set_online_manager(online_manager_actor_.get());
-}
-
-void Td::init_file_manager() {
-  VLOG(td_init) << "Create FileManager";
-  class FileManagerContext final : public FileManager::Context {
-   public:
-    explicit FileManagerContext(Td *td) : td_(td) {
-    }
-
-    bool need_notify_on_new_files() final {
-      return !td_->auth_manager_->is_bot();
-    }
-
-    void on_new_file(int64 size, int64 real_size, int32 cnt) final {
-      send_closure(G()->storage_manager(), &StorageManager::on_new_file, size, real_size, cnt);
-    }
-
-    void on_file_updated(FileId file_id) final {
-      send_closure(G()->td(), &Td::send_update,
-                   make_tl_object<td_api::updateFile>(td_->file_manager_->get_file_object(file_id)));
-    }
-
-    bool add_file_source(FileId file_id, FileSourceId file_source_id, const char *source) final {
-      return td_->file_reference_manager_->add_file_source(file_id, file_source_id, source);
-    }
-
-    bool remove_file_source(FileId file_id, FileSourceId file_source_id, const char *source) final {
-      return td_->file_reference_manager_->remove_file_source(file_id, file_source_id, source);
-    }
-
-    void on_merge_files(FileId to_file_id, FileId from_file_id) final {
-      td_->file_reference_manager_->merge(to_file_id, from_file_id);
-    }
-
-    vector<FileSourceId> get_some_file_sources(FileId file_id) final {
-      return td_->file_reference_manager_->get_some_file_sources(file_id);
-    }
-
-    void repair_file_reference(FileId file_id, Promise<Unit> promise) final {
-      send_closure(G()->file_reference_manager(), &FileReferenceManager::repair_file_reference, file_id,
-                   std::move(promise));
-    }
-
-    void reload_photo(PhotoSizeSource source, Promise<Unit> promise) final {
-      FileReferenceManager::reload_photo(std::move(source), std::move(promise));
-    }
-
-    bool keep_exact_remote_location() final {
-      return !td_->auth_manager_->is_bot();
-    }
-
-    ActorShared<> create_reference() final {
-      return td_->create_reference();
-    }
-
-   private:
-    Td *td_;
-  };
-
-  file_manager_ = make_unique<FileManager>(make_unique<FileManagerContext>(this));
-  file_manager_actor_ = register_actor("FileManager", file_manager_.get());
-  file_manager_->init_actor();
-  G()->set_file_manager(file_manager_actor_.get());
-
-  file_reference_manager_ = make_unique<FileReferenceManager>(create_reference());
-  file_reference_manager_actor_ = register_actor("FileReferenceManager", file_reference_manager_.get());
-  G()->set_file_reference_manager(file_reference_manager_actor_.get());
-}
-
-void Td::init_non_actor_managers() {
-  VLOG(td_init) << "Create Managers";
-  audios_manager_ = make_unique<AudiosManager>(this);
-  callback_queries_manager_ = make_unique<CallbackQueriesManager>(this);
-  documents_manager_ = make_unique<DocumentsManager>(this);
-  videos_manager_ = make_unique<VideosManager>(this);
-}
-
-void Td::init_managers() {
-  account_manager_ = make_unique<AccountManager>(this, create_reference());
-  account_manager_actor_ = register_actor("AccountManager", account_manager_.get());
-  G()->set_account_manager(account_manager_actor_.get());
-  animations_manager_ = make_unique<AnimationsManager>(this, create_reference());
-  animations_manager_actor_ = register_actor("AnimationsManager", animations_manager_.get());
-  G()->set_animations_manager(animations_manager_actor_.get());
-  attach_menu_manager_ = make_unique<AttachMenuManager>(this, create_reference());
-  attach_menu_manager_actor_ = register_actor("AttachMenuManager", attach_menu_manager_.get());
-  G()->set_attach_menu_manager(attach_menu_manager_actor_.get());
-  autosave_manager_ = make_unique<AutosaveManager>(this, create_reference());
-  autosave_manager_actor_ = register_actor("AutosaveManager", autosave_manager_.get());
-  G()->set_autosave_manager(autosave_manager_actor_.get());
-  background_manager_ = make_unique<BackgroundManager>(this, create_reference());
-  background_manager_actor_ = register_actor("BackgroundManager", background_manager_.get());
-  G()->set_background_manager(background_manager_actor_.get());
-  boost_manager_ = make_unique<BoostManager>(this, create_reference());
-  boost_manager_actor_ = register_actor("BoostManager", boost_manager_.get());
-  G()->set_boost_manager(boost_manager_actor_.get());
-  bot_info_manager_ = make_unique<BotInfoManager>(this, create_reference());
-  bot_info_manager_actor_ = register_actor("BotInfoManager", bot_info_manager_.get());
-  G()->set_bot_info_manager(bot_info_manager_actor_.get());
-  bot_recommendation_manager_ = make_unique<BotRecommendationManager>(this, create_reference());
-  bot_recommendation_manager_actor_ = register_actor("BotRecommendationManager", bot_recommendation_manager_.get());
-  business_connection_manager_ = make_unique<BusinessConnectionManager>(this, create_reference());
-  business_connection_manager_actor_ = register_actor("BusinessConnectionManager", business_connection_manager_.get());
-  G()->set_business_connection_manager(business_connection_manager_actor_.get());
-  business_manager_ = make_unique<BusinessManager>(this, create_reference());
-  business_manager_actor_ = register_actor("BusinessManager", business_manager_.get());
-  G()->set_business_manager(business_manager_actor_.get());
-  call_manager_ = make_unique<CallManager>(this, create_reference());
-  call_manager_actor_ = register_actor("CallManager", call_manager_.get());
-  G()->set_call_manager(call_manager_actor_.get());
-  channel_recommendation_manager_ = make_unique<ChannelRecommendationManager>(this, create_reference());
-  channel_recommendation_manager_actor_ =
-      register_actor("ChannelRecommendationManager", channel_recommendation_manager_.get());
-  chat_manager_ = make_unique<ChatManager>(this, create_reference());
-  chat_manager_actor_ = register_actor("ChatManager", chat_manager_.get());
-  G()->set_chat_manager(chat_manager_actor_.get());
-  common_dialog_manager_ = make_unique<CommonDialogManager>(this, create_reference());
-  common_dialog_manager_actor_ = register_actor("CommonDialogManager", common_dialog_manager_.get());
-  connection_state_manager_ = make_unique<ConnectionStateManager>(this, create_reference());
-  connection_state_manager_actor_ = register_actor("ConnectionStateManager", connection_state_manager_.get());
-  country_info_manager_ = make_unique<CountryInfoManager>(this, create_reference());
-  country_info_manager_actor_ = register_actor("CountryInfoManager", country_info_manager_.get());
-  dialog_action_manager_ = make_unique<DialogActionManager>(this, create_reference());
-  dialog_action_manager_actor_ = register_actor("DialogActionManager", dialog_action_manager_.get());
-  G()->set_dialog_action_manager(dialog_action_manager_actor_.get());
-  dialog_filter_manager_ = make_unique<DialogFilterManager>(this, create_reference());
-  dialog_filter_manager_actor_ = register_actor("DialogFilterManager", dialog_filter_manager_.get());
-  G()->set_dialog_filter_manager(dialog_filter_manager_actor_.get());
-  dialog_invite_link_manager_ = make_unique<DialogInviteLinkManager>(this, create_reference());
-  dialog_invite_link_manager_actor_ = register_actor("DialogInviteLinkManager", dialog_invite_link_manager_.get());
-  G()->set_dialog_invite_link_manager(dialog_invite_link_manager_actor_.get());
-  dialog_manager_ = make_unique<DialogManager>(this, create_reference());
-  dialog_manager_actor_ = register_actor("DialogManager", dialog_manager_.get());
-  G()->set_dialog_manager(dialog_manager_actor_.get());
-  dialog_participant_manager_ = make_unique<DialogParticipantManager>(this, create_reference());
-  dialog_participant_manager_actor_ = register_actor("DialogParticipantManager", dialog_participant_manager_.get());
-  G()->set_dialog_participant_manager(dialog_participant_manager_actor_.get());
-  download_manager_ = DownloadManager::create(td::make_unique<DownloadManagerCallback>(this, create_reference()));
-  download_manager_actor_ = register_actor("DownloadManager", download_manager_.get());
-  G()->set_download_manager(download_manager_actor_.get());
-  forum_topic_manager_ = make_unique<ForumTopicManager>(this, create_reference());
-  forum_topic_manager_actor_ = register_actor("ForumTopicManager", forum_topic_manager_.get());
-  G()->set_forum_topic_manager(forum_topic_manager_actor_.get());
-  game_manager_ = make_unique<GameManager>(this, create_reference());
-  game_manager_actor_ = register_actor("GameManager", game_manager_.get());
-  G()->set_game_manager(game_manager_actor_.get());
-  group_call_manager_ = make_unique<GroupCallManager>(this, create_reference());
-  group_call_manager_actor_ = register_actor("GroupCallManager", group_call_manager_.get());
-  G()->set_group_call_manager(group_call_manager_actor_.get());
-  inline_message_manager_ = make_unique<InlineMessageManager>(this, create_reference());
-  inline_message_manager_actor_ = register_actor("InlineMessageManager", inline_message_manager_.get());
-  G()->set_inline_message_manager(inline_message_manager_actor_.get());
-  inline_queries_manager_ = make_unique<InlineQueriesManager>(this, create_reference());
-  inline_queries_manager_actor_ = register_actor("InlineQueriesManager", inline_queries_manager_.get());
-  link_manager_ = make_unique<LinkManager>(this, create_reference());
-  link_manager_actor_ = register_actor("LinkManager", link_manager_.get());
-  G()->set_link_manager(link_manager_actor_.get());
-  message_import_manager_ = make_unique<MessageImportManager>(this, create_reference());
-  message_import_manager_actor_ = register_actor("MessageImportManager", message_import_manager_.get());
-  G()->set_message_import_manager(message_import_manager_actor_.get());
-  message_query_manager_ = make_unique<MessageQueryManager>(this, create_reference());
-  message_query_manager_actor_ = register_actor("MessageQueryManager", message_query_manager_.get());
-  G()->set_message_query_manager(message_query_manager_actor_.get());
-  messages_manager_ = make_unique<MessagesManager>(this, create_reference());
-  messages_manager_actor_ = register_actor("MessagesManager", messages_manager_.get());
-  G()->set_messages_manager(messages_manager_actor_.get());
-  notification_manager_ = make_unique<NotificationManager>(this, create_reference());
-  notification_manager_actor_ = register_actor("NotificationManager", notification_manager_.get());
-  G()->set_notification_manager(notification_manager_actor_.get());
-  notification_settings_manager_ = make_unique<NotificationSettingsManager>(this, create_reference());
-  notification_settings_manager_actor_ =
-      register_actor("NotificationSettingsManager", notification_settings_manager_.get());
-  G()->set_notification_settings_manager(notification_settings_manager_actor_.get());
-  people_nearby_manager_ = make_unique<PeopleNearbyManager>(this, create_reference());
-  people_nearby_manager_actor_ = register_actor("PeopleNearbyManager", people_nearby_manager_.get());
-  G()->set_people_nearby_manager(people_nearby_manager_actor_.get());
-  phone_number_manager_ = make_unique<PhoneNumberManager>(this, create_reference());
-  phone_number_manager_actor_ = register_actor("PhoneNumberManager", phone_number_manager_.get());
-  poll_manager_ = make_unique<PollManager>(this, create_reference());
-  poll_manager_actor_ = register_actor("PollManager", poll_manager_.get());
-  privacy_manager_ = make_unique<PrivacyManager>(this, create_reference());
-  privacy_manager_actor_ = register_actor("PrivacyManager", privacy_manager_.get());
-  promo_data_manager_ = make_unique<PromoDataManager>(this, create_reference());
-  promo_data_manager_actor_ = register_actor("PromoDataManager", promo_data_manager_.get());
-  G()->set_promo_data_manager(promo_data_manager_actor_.get());
-  quick_reply_manager_ = make_unique<QuickReplyManager>(this, create_reference());
-  quick_reply_manager_actor_ = register_actor("QuickReplyManager", quick_reply_manager_.get());
-  G()->set_quick_reply_manager(quick_reply_manager_actor_.get());
-  reaction_manager_ = make_unique<ReactionManager>(this, create_reference());
-  reaction_manager_actor_ = register_actor("ReactionManager", reaction_manager_.get());
-  G()->set_reaction_manager(reaction_manager_actor_.get());
-  referral_program_manager_ = make_unique<ReferralProgramManager>(this, create_reference());
-  referral_program_manager_actor_ = register_actor("ReferralProgramManager", referral_program_manager_.get());
-  G()->set_referral_program_manager(referral_program_manager_actor_.get());
-  saved_messages_manager_ = make_unique<SavedMessagesManager>(this, create_reference());
-  saved_messages_manager_actor_ = register_actor("SavedMessagesManager", saved_messages_manager_.get());
-  G()->set_saved_messages_manager(saved_messages_manager_actor_.get());
-  sponsored_message_manager_ = make_unique<SponsoredMessageManager>(this, create_reference());
-  sponsored_message_manager_actor_ = register_actor("SponsoredMessageManager", sponsored_message_manager_.get());
-  G()->set_sponsored_message_manager(sponsored_message_manager_actor_.get());
-  star_gift_manager_ = make_unique<StarGiftManager>(this, create_reference());
-  star_gift_manager_actor_ = register_actor("StarGiftManager", star_gift_manager_.get());
-  star_manager_ = make_unique<StarManager>(this, create_reference());
-  star_manager_actor_ = register_actor("StarManager", star_manager_.get());
-  G()->set_star_manager(star_manager_actor_.get());
-  statistics_manager_ = make_unique<StatisticsManager>(this, create_reference());
-  statistics_manager_actor_ = register_actor("StatisticsManager", statistics_manager_.get());
-  stickers_manager_ = make_unique<StickersManager>(this, create_reference());
-  stickers_manager_actor_ = register_actor("StickersManager", stickers_manager_.get());
-  G()->set_stickers_manager(stickers_manager_actor_.get());
-  story_manager_ = make_unique<StoryManager>(this, create_reference());
-  story_manager_actor_ = register_actor("StoryManager", story_manager_.get());
-  G()->set_story_manager(story_manager_actor_.get());
-  suggested_action_manager_ = make_unique<SuggestedActionManager>(this, create_reference());
-  suggested_action_manager_actor_ = register_actor("SuggestedActionManager", suggested_action_manager_.get());
-  G()->set_suggested_action_manager(suggested_action_manager_actor_.get());
-  terms_of_service_manager_ = make_unique<TermsOfServiceManager>(this, create_reference());
-  terms_of_service_manager_actor_ = register_actor("TermsOfServiceManager", terms_of_service_manager_.get());
-  theme_manager_ = make_unique<ThemeManager>(this, create_reference());
-  theme_manager_actor_ = register_actor("ThemeManager", theme_manager_.get());
-  G()->set_theme_manager(theme_manager_actor_.get());
-  time_zone_manager_ = make_unique<TimeZoneManager>(this, create_reference());
-  time_zone_manager_actor_ = register_actor("TimeZoneManager", time_zone_manager_.get());
-  G()->set_time_zone_manager(time_zone_manager_actor_.get());
-  top_dialog_manager_ = make_unique<TopDialogManager>(this, create_reference());
-  top_dialog_manager_actor_ = register_actor("TopDialogManager", top_dialog_manager_.get());
-  G()->set_top_dialog_manager(top_dialog_manager_actor_.get());
-  transcription_manager_ = make_unique<TranscriptionManager>(this, create_reference());
-  transcription_manager_actor_ = register_actor("TranscriptionManager", transcription_manager_.get());
-  G()->set_transcription_manager(transcription_manager_actor_.get());
-  translation_manager_ = make_unique<TranslationManager>(this, create_reference());
-  translation_manager_actor_ = register_actor("TranslationManager", translation_manager_.get());
-  updates_manager_ = make_unique<UpdatesManager>(this, create_reference());
-  updates_manager_actor_ = register_actor("UpdatesManager", updates_manager_.get());
-  G()->set_updates_manager(updates_manager_actor_.get());
-  user_manager_ = make_unique<UserManager>(this, create_reference());
-  user_manager_actor_ = register_actor("UserManager", user_manager_.get());
-  G()->set_user_manager(user_manager_actor_.get());
-  video_notes_manager_ = make_unique<VideoNotesManager>(this, create_reference());
-  video_notes_manager_actor_ = register_actor("VideoNotesManager", video_notes_manager_.get());
-  voice_notes_manager_ = make_unique<VoiceNotesManager>(this, create_reference());
-  voice_notes_manager_actor_ = register_actor("VoiceNotesManager", voice_notes_manager_.get());
-  web_app_manager_ = make_unique<WebAppManager>(this, create_reference());
-  web_app_manager_actor_ = register_actor("WebAppManager", web_app_manager_.get());
-  G()->set_web_app_manager(web_app_manager_actor_.get());
-  web_pages_manager_ = make_unique<WebPagesManager>(this, create_reference());
-  web_pages_manager_actor_ = register_actor("WebPagesManager", web_pages_manager_.get());
-  G()->set_web_pages_manager(web_pages_manager_actor_.get());
-}
-
-void Td::init_pure_actor_managers() {
-  cashtag_search_hints_ = create_actor<HashtagHints>("CashtagSearchHints", "cashtag_search", '$', create_reference());
-  device_token_manager_ = create_actor<DeviceTokenManager>("DeviceTokenManager", create_reference());
-  hashtag_hints_ = create_actor<HashtagHints>("HashtagHints", "text", '#', create_reference());
-  hashtag_search_hints_ = create_actor<HashtagHints>("HashtagSearchHints", "search", '#', create_reference());
-  language_pack_manager_ = create_actor<LanguagePackManager>("LanguagePackManager", create_reference());
-  G()->set_language_pack_manager(language_pack_manager_.get());
-  password_manager_ = create_actor<PasswordManager>("PasswordManager", create_reference());
-  G()->set_password_manager(password_manager_.get());
-  secure_manager_ = create_actor<SecureManager>("SecureManager", create_reference());
-}
-
-void Td::send_update(tl_object_ptr<td_api::Update> &&object) {
-  CHECK(object != nullptr);
-  auto object_id = object->get_id();
-  if (close_flag_ >= 5 && object_id != td_api::updateAuthorizationState::ID) {
-    // just in case
-    return;
-  }
-
-  switch (object_id) {
-    case td_api::updateAccentColors::ID:
-    case td_api::updateChatThemes::ID:
-    case td_api::updateFavoriteStickers::ID:
-    case td_api::updateInstalledStickerSets::ID:
-    case td_api::updateProfileAccentColors::ID:
-    case td_api::updateRecentStickers::ID:
-    case td_api::updateSavedAnimations::ID:
-    case td_api::updateSavedNotificationSounds::ID:
-    case td_api::updateUserStatus::ID:
-      VLOG(td_requests) << "Sending update: " << oneline(to_string(object));
-      break;
-    case td_api::updateTrendingStickerSets::ID: {
-      auto update = static_cast<const td_api::updateTrendingStickerSets *>(object.get());
-      auto sticker_sets = update->sticker_sets_.get();
-      VLOG(td_requests) << "Sending update: updateTrendingStickerSets { " << oneline(to_string(update->sticker_type_))
-                        << ", total_count = " << sticker_sets->total_count_
-                        << ", count = " << sticker_sets->sets_.size() << " }";
-      break;
-    }
-    case td_api::updateOption::ID:
-      if (auth_manager_ == nullptr || !auth_manager_->is_bot()) {
-        VLOG(td_requests) << "Sending update: " << to_string(object);
-      }
-      break;
-    case td_api::updateDefaultReactionType::ID / 2:
-      LOG(ERROR) << "Sending update: " << oneline(to_string(object));
-      break;
-    default:
-      VLOG(td_requests) << "Sending update: " << to_string(object);
-  }
-
-  callback_->on_result(0, std::move(object));
-}
-
-void Td::send_result(uint64 id, tl_object_ptr<td_api::Object> object) {
-  if (id == 0) {
-    LOG(ERROR) << "Sending " << to_string(object) << " through send_result";
-    return;
-  }
-
-  auto it = request_set_.find(id);
-  if (it != request_set_.end()) {
-    if (object == nullptr) {
-      object = make_tl_object<td_api::error>(404, "Not Found");
-    }
-    VLOG(td_requests) << "Sending result for request " << id << ": " << to_string(object);
-    request_set_.erase(it);
-    callback_->on_result(id, std::move(object));
-  }
-}
-
-void Td::send_error_impl(uint64 id, tl_object_ptr<td_api::error> error) {
-  CHECK(id != 0);
-  CHECK(error != nullptr);
-  auto it = request_set_.find(id);
-  if (it != request_set_.end()) {
-    if (error->code_ == 0 && error->message_ == "Lost promise") {
-      LOG(FATAL) << "Lost promise for query " << id << " of type " << it->second << " in close state " << close_flag_;
-    }
-    VLOG(td_requests) << "Sending error for request " << id << ": " << oneline(to_string(error));
-    request_set_.erase(it);
-    callback_->on_error(id, std::move(error));
-  }
-}
-
-void Td::send_error(uint64 id, Status error) {
-  send_error_impl(id, make_tl_object<td_api::error>(error.code(), error.message().str()));
-  error.ignore();
-}
-
-Result<std::pair<Td::Parameters, TdDb::Parameters>> Td::get_parameters(
-    td_api::object_ptr<td_api::setTdlibParameters> parameters) {
-  VLOG(td_init) << "Begin to set TDLib parameters";
-  if (!clean_input_string(parameters->api_hash_) || !clean_input_string(parameters->system_language_code_) ||
-      !clean_input_string(parameters->device_model_) || !clean_input_string(parameters->system_version_) ||
-      !clean_input_string(parameters->application_version_)) {
-    VLOG(td_init) << "Wrong string encoding";
-    return Status::Error(400, "Strings must be encoded in UTF-8");
-  }
-
-  if (parameters->api_id_ <= 0) {
-    return Status::Error(400, "Valid api_id must be provided. Can be obtained at https://my.telegram.org");
-  }
-  if (parameters->api_hash_.empty()) {
-    return Status::Error(400, "Valid api_hash must be provided. Can be obtained at https://my.telegram.org");
-  }
-
-  std::pair<Parameters, TdDb::Parameters> result;
-  result.first.api_id_ = parameters->api_id_;
-  result.first.api_hash_ = std::move(parameters->api_hash_);
-  result.first.use_secret_chats_ = parameters->use_secret_chats_;
-
-  result.second.encryption_key_ = TdDb::as_db_key(std::move(parameters->database_encryption_key_));
-  result.second.database_directory_ = std::move(parameters->database_directory_);
-  result.second.files_directory_ = std::move(parameters->files_directory_);
-  result.second.is_test_dc_ = parameters->use_test_dc_;
-  result.second.use_file_database_ = parameters->use_file_database_;
-  result.second.use_chat_info_database_ = parameters->use_chat_info_database_;
-  result.second.use_message_database_ = parameters->use_message_database_;
-
-  VLOG(td_init) << "Create MtprotoHeader::Options";
-  options_.api_id = parameters->api_id_;
-  options_.system_language_code = trim(parameters->system_language_code_);
-  options_.device_model = trim(parameters->device_model_);
-  options_.system_version = trim(parameters->system_version_);
-  options_.application_version = trim(parameters->application_version_);
-  if (options_.system_language_code.empty()) {
-    return Status::Error(400, "System language code must be non-empty");
-  }
-  if (options_.device_model.empty()) {
-    return Status::Error(400, "Device model must be non-empty");
-  }
-  if (options_.system_version.empty()) {
-    options_.system_version = get_operating_system_version().str();
-    VLOG(td_init) << "Set system version to " << options_.system_version;
-  }
-  if (options_.application_version.empty()) {
-    return Status::Error(400, "Application version must be non-empty");
-  }
-  if (options_.api_id != 21724) {
-    options_.application_version += ", TDLib ";
-    auto version = OptionManager::get_option_synchronously("version");
-    CHECK(version->get_id() == td_api::optionValueString::ID);
-    options_.application_version += static_cast<const td_api::optionValueString *>(version.get())->value_;
-  }
-  options_.language_pack = string();
-  options_.language_code = string();
-  options_.parameters = string();
-  options_.is_emulator = false;
-  options_.proxy = Proxy();
-
-  return std::move(result);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Td.h b/third-party/td/td/td/telegram/Td.h
deleted file mode 100644
index b9edbf8350..0000000000
--- a/third-party/td/td/td/telegram/Td.h
+++ /dev/null
@@ -1,466 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/MtprotoHeader.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryStats.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/TdCallback.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-#include <unordered_map>
-#include <utility>
-
-namespace td {
-
-class AccountManager;
-class AlarmManager;
-class AnimationsManager;
-class AttachMenuManager;
-class AudiosManager;
-class AuthManager;
-class AutosaveManager;
-class BackgroundManager;
-class BoostManager;
-class BotInfoManager;
-class BotRecommendationManager;
-class BusinessConnectionManager;
-class BusinessManager;
-class CallManager;
-class CallbackQueriesManager;
-class ChannelRecommendationManager;
-class ChatManager;
-class CommonDialogManager;
-class ConfigManager;
-class ConnectionStateManager;
-class CountryInfoManager;
-class DeviceTokenManager;
-class DialogActionManager;
-class DialogFilterManager;
-class DialogInviteLinkManager;
-class DialogManager;
-class DialogParticipantManager;
-class DocumentsManager;
-class DownloadManager;
-class FileManager;
-class FileReferenceManager;
-class ForumTopicManager;
-class GameManager;
-class GroupCallManager;
-class InlineMessageManager;
-class InlineQueriesManager;
-class HashtagHints;
-class LanguagePackManager;
-class LinkManager;
-class MessageImportManager;
-class MessageQueryManager;
-class MessagesManager;
-class NetStatsManager;
-class NotificationManager;
-class NotificationSettingsManager;
-class OnlineManager;
-class OptionManager;
-class PasswordManager;
-class PeopleNearbyManager;
-class PhoneNumberManager;
-class PollManager;
-class PrivacyManager;
-class PromoDataManager;
-class QuickReplyManager;
-class ReactionManager;
-class ReferralProgramManager;
-class Requests;
-class SavedMessagesManager;
-class SecureManager;
-class SecretChatsManager;
-class SponsoredMessageManager;
-class StarGiftManager;
-class StarManager;
-class StateManager;
-class StatisticsManager;
-class StickersManager;
-class StorageManager;
-class StoryManager;
-class SuggestedActionManager;
-class TermsOfServiceManager;
-class ThemeManager;
-class TimeZoneManager;
-class TopDialogManager;
-class TranscriptionManager;
-class TranslationManager;
-class UpdatesManager;
-class UserManager;
-class VideoNotesManager;
-class VideosManager;
-class VoiceNotesManager;
-class WebAppManager;
-class WebPagesManager;
-
-extern int VERBOSITY_NAME(td_init);
-extern int VERBOSITY_NAME(td_requests);
-
-// Td may start closing after explicit "close" or "destroy" query.
-// Or it may start closing by itself, because authorization is lost.
-// It any case the parent will be notified via updateAuthorizationState.
-//
-// Td needs a way to know that it will receive no more queries.
-// It happens after "hangup".
-//
-// Parent needs a way to know that it will receive no more updates.
-// It happens after destruction of callback
-class Td final : public Actor {
- public:
-  Td(const Td &) = delete;
-  Td(Td &&) = delete;
-  Td &operator=(const Td &) = delete;
-  Td &operator=(Td &&) = delete;
-  ~Td() final;
-
-  struct Options {
-    std::shared_ptr<NetQueryStats> net_query_stats;
-  };
-
-  Td(unique_ptr<TdCallback> callback, Options options);
-
-  void request(uint64 id, tl_object_ptr<td_api::Function> function);
-
-  void destroy();
-
-  void on_update(telegram_api::object_ptr<telegram_api::Updates> updates, uint64 auth_key_id);
-
-  void on_result(NetQueryPtr query);
-
-  bool can_ignore_background_updates() const {
-    return can_ignore_background_updates_;
-  }
-
-  bool ignore_background_updates() const;
-
-  unique_ptr<AudiosManager> audios_manager_;
-  unique_ptr<CallbackQueriesManager> callback_queries_manager_;
-  unique_ptr<DocumentsManager> documents_manager_;
-  unique_ptr<OptionManager> option_manager_;
-  unique_ptr<VideosManager> videos_manager_;
-
-  unique_ptr<AccountManager> account_manager_;
-  ActorOwn<AccountManager> account_manager_actor_;
-  unique_ptr<AnimationsManager> animations_manager_;
-  ActorOwn<AnimationsManager> animations_manager_actor_;
-  unique_ptr<AttachMenuManager> attach_menu_manager_;
-  ActorOwn<AttachMenuManager> attach_menu_manager_actor_;
-  unique_ptr<AuthManager> auth_manager_;
-  ActorOwn<AuthManager> auth_manager_actor_;
-  unique_ptr<AutosaveManager> autosave_manager_;
-  ActorOwn<AutosaveManager> autosave_manager_actor_;
-  unique_ptr<BackgroundManager> background_manager_;
-  ActorOwn<BackgroundManager> background_manager_actor_;
-  unique_ptr<BoostManager> boost_manager_;
-  ActorOwn<BoostManager> boost_manager_actor_;
-  unique_ptr<BotInfoManager> bot_info_manager_;
-  ActorOwn<BotInfoManager> bot_info_manager_actor_;
-  unique_ptr<BotRecommendationManager> bot_recommendation_manager_;
-  ActorOwn<BotRecommendationManager> bot_recommendation_manager_actor_;
-  unique_ptr<BusinessConnectionManager> business_connection_manager_;
-  ActorOwn<BusinessConnectionManager> business_connection_manager_actor_;
-  unique_ptr<BusinessManager> business_manager_;
-  ActorOwn<BusinessManager> business_manager_actor_;
-  unique_ptr<CallManager> call_manager_;
-  ActorOwn<CallManager> call_manager_actor_;
-  unique_ptr<ChannelRecommendationManager> channel_recommendation_manager_;
-  ActorOwn<ChannelRecommendationManager> channel_recommendation_manager_actor_;
-  unique_ptr<ChatManager> chat_manager_;
-  ActorOwn<ChatManager> chat_manager_actor_;
-  unique_ptr<CommonDialogManager> common_dialog_manager_;
-  ActorOwn<CommonDialogManager> common_dialog_manager_actor_;
-  unique_ptr<ConnectionStateManager> connection_state_manager_;
-  ActorOwn<ConnectionStateManager> connection_state_manager_actor_;
-  unique_ptr<CountryInfoManager> country_info_manager_;
-  ActorOwn<CountryInfoManager> country_info_manager_actor_;
-  unique_ptr<DialogActionManager> dialog_action_manager_;
-  ActorOwn<DialogActionManager> dialog_action_manager_actor_;
-  unique_ptr<DialogFilterManager> dialog_filter_manager_;
-  ActorOwn<DialogFilterManager> dialog_filter_manager_actor_;
-  unique_ptr<DialogInviteLinkManager> dialog_invite_link_manager_;
-  ActorOwn<DialogInviteLinkManager> dialog_invite_link_manager_actor_;
-  unique_ptr<DialogManager> dialog_manager_;
-  ActorOwn<DialogManager> dialog_manager_actor_;
-  unique_ptr<DialogParticipantManager> dialog_participant_manager_;
-  ActorOwn<DialogParticipantManager> dialog_participant_manager_actor_;
-  unique_ptr<DownloadManager> download_manager_;
-  ActorOwn<DownloadManager> download_manager_actor_;
-  unique_ptr<FileManager> file_manager_;
-  ActorOwn<FileManager> file_manager_actor_;
-  unique_ptr<FileReferenceManager> file_reference_manager_;
-  ActorOwn<FileReferenceManager> file_reference_manager_actor_;
-  unique_ptr<ForumTopicManager> forum_topic_manager_;
-  ActorOwn<ForumTopicManager> forum_topic_manager_actor_;
-  unique_ptr<GameManager> game_manager_;
-  ActorOwn<GameManager> game_manager_actor_;
-  unique_ptr<GroupCallManager> group_call_manager_;
-  ActorOwn<GroupCallManager> group_call_manager_actor_;
-  unique_ptr<InlineMessageManager> inline_message_manager_;
-  ActorOwn<InlineMessageManager> inline_message_manager_actor_;
-  unique_ptr<InlineQueriesManager> inline_queries_manager_;
-  ActorOwn<InlineQueriesManager> inline_queries_manager_actor_;
-  unique_ptr<LinkManager> link_manager_;
-  ActorOwn<LinkManager> link_manager_actor_;
-  unique_ptr<MessageImportManager> message_import_manager_;
-  ActorOwn<MessageImportManager> message_import_manager_actor_;
-  unique_ptr<MessageQueryManager> message_query_manager_;
-  ActorOwn<MessageQueryManager> message_query_manager_actor_;
-  unique_ptr<MessagesManager> messages_manager_;
-  ActorOwn<MessagesManager> messages_manager_actor_;
-  unique_ptr<NotificationManager> notification_manager_;
-  ActorOwn<NotificationManager> notification_manager_actor_;
-  unique_ptr<NotificationSettingsManager> notification_settings_manager_;
-  ActorOwn<NotificationSettingsManager> notification_settings_manager_actor_;
-  unique_ptr<OnlineManager> online_manager_;
-  ActorOwn<OnlineManager> online_manager_actor_;
-  unique_ptr<PeopleNearbyManager> people_nearby_manager_;
-  ActorOwn<PeopleNearbyManager> people_nearby_manager_actor_;
-  unique_ptr<PhoneNumberManager> phone_number_manager_;
-  ActorOwn<PhoneNumberManager> phone_number_manager_actor_;
-  unique_ptr<PollManager> poll_manager_;
-  ActorOwn<PollManager> poll_manager_actor_;
-  unique_ptr<PrivacyManager> privacy_manager_;
-  ActorOwn<PrivacyManager> privacy_manager_actor_;
-  unique_ptr<PromoDataManager> promo_data_manager_;
-  ActorOwn<PromoDataManager> promo_data_manager_actor_;
-  unique_ptr<QuickReplyManager> quick_reply_manager_;
-  ActorOwn<QuickReplyManager> quick_reply_manager_actor_;
-  unique_ptr<ReactionManager> reaction_manager_;
-  ActorOwn<ReactionManager> reaction_manager_actor_;
-  unique_ptr<ReferralProgramManager> referral_program_manager_;
-  ActorOwn<ReferralProgramManager> referral_program_manager_actor_;
-  unique_ptr<SavedMessagesManager> saved_messages_manager_;
-  ActorOwn<SavedMessagesManager> saved_messages_manager_actor_;
-  unique_ptr<SponsoredMessageManager> sponsored_message_manager_;
-  ActorOwn<SponsoredMessageManager> sponsored_message_manager_actor_;
-  unique_ptr<StarGiftManager> star_gift_manager_;
-  ActorOwn<StarGiftManager> star_gift_manager_actor_;
-  unique_ptr<StarManager> star_manager_;
-  ActorOwn<StarManager> star_manager_actor_;
-  unique_ptr<StatisticsManager> statistics_manager_;
-  ActorOwn<StatisticsManager> statistics_manager_actor_;
-  unique_ptr<StickersManager> stickers_manager_;
-  ActorOwn<StickersManager> stickers_manager_actor_;
-  unique_ptr<StoryManager> story_manager_;
-  ActorOwn<StoryManager> story_manager_actor_;
-  unique_ptr<SuggestedActionManager> suggested_action_manager_;
-  ActorOwn<SuggestedActionManager> suggested_action_manager_actor_;
-  unique_ptr<TermsOfServiceManager> terms_of_service_manager_;
-  ActorOwn<TermsOfServiceManager> terms_of_service_manager_actor_;
-  unique_ptr<ThemeManager> theme_manager_;
-  ActorOwn<ThemeManager> theme_manager_actor_;
-  unique_ptr<TimeZoneManager> time_zone_manager_;
-  ActorOwn<TimeZoneManager> time_zone_manager_actor_;
-  unique_ptr<TopDialogManager> top_dialog_manager_;
-  ActorOwn<TopDialogManager> top_dialog_manager_actor_;
-  unique_ptr<TranscriptionManager> transcription_manager_;
-  ActorOwn<TranscriptionManager> transcription_manager_actor_;
-  unique_ptr<TranslationManager> translation_manager_;
-  ActorOwn<TranslationManager> translation_manager_actor_;
-  unique_ptr<UpdatesManager> updates_manager_;
-  ActorOwn<UpdatesManager> updates_manager_actor_;
-  unique_ptr<UserManager> user_manager_;
-  ActorOwn<UserManager> user_manager_actor_;
-  unique_ptr<VideoNotesManager> video_notes_manager_;
-  ActorOwn<VideoNotesManager> video_notes_manager_actor_;
-  unique_ptr<VoiceNotesManager> voice_notes_manager_;
-  ActorOwn<VoiceNotesManager> voice_notes_manager_actor_;
-  unique_ptr<WebAppManager> web_app_manager_;
-  ActorOwn<WebAppManager> web_app_manager_actor_;
-  unique_ptr<WebPagesManager> web_pages_manager_;
-  ActorOwn<WebPagesManager> web_pages_manager_actor_;
-
-  ActorOwn<AlarmManager> alarm_manager_;
-  ActorOwn<HashtagHints> cashtag_search_hints_;
-  ActorOwn<ConfigManager> config_manager_;
-  ActorOwn<DeviceTokenManager> device_token_manager_;
-  ActorOwn<HashtagHints> hashtag_hints_;
-  ActorOwn<HashtagHints> hashtag_search_hints_;
-  ActorOwn<LanguagePackManager> language_pack_manager_;
-  ActorOwn<NetStatsManager> net_stats_manager_;
-  ActorOwn<PasswordManager> password_manager_;
-  ActorOwn<SecretChatsManager> secret_chats_manager_;
-  ActorOwn<SecureManager> secure_manager_;
-  ActorOwn<StateManager> state_manager_;
-  ActorOwn<StorageManager> storage_manager_;
-
-  class ResultHandler : public std::enable_shared_from_this<ResultHandler> {
-   public:
-    ResultHandler() = default;
-    ResultHandler(const ResultHandler &) = delete;
-    ResultHandler &operator=(const ResultHandler &) = delete;
-    virtual ~ResultHandler() = default;
-
-    virtual void on_result(BufferSlice packet) {
-      UNREACHABLE();
-    }
-
-    virtual void on_error(Status status) {
-      UNREACHABLE();
-    }
-
-    friend class Td;
-
-   protected:
-    void send_query(NetQueryPtr query);
-
-    Td *td_ = nullptr;
-    bool is_query_sent_ = false;
-
-   private:
-    void set_td(Td *td);
-  };
-
-  template <class HandlerT, class... Args>
-  std::shared_ptr<HandlerT> create_handler(Args &&...args) {
-    LOG_CHECK(close_flag_ < 2) << close_flag_
-#if TD_CLANG || TD_GCC
-                               << ' ' << __PRETTY_FUNCTION__
-#endif
-        ;
-    auto ptr = std::make_shared<HandlerT>(std::forward<Args>(args)...);
-    ptr->set_td(this);
-    return ptr;
-  }
-
-  void send_update(tl_object_ptr<td_api::Update> &&object);
-
-  static td_api::object_ptr<td_api::Object> static_request(td_api::object_ptr<td_api::Function> function);
-
- private:
-  void run_request(uint64 id, td_api::object_ptr<td_api::Function> function);
-
-  void send_result(uint64 id, tl_object_ptr<td_api::Object> object);
-
-  void send_error(uint64 id, Status error);
-
-  void send_error_impl(uint64 id, tl_object_ptr<td_api::error> error);
-
-  ActorShared<Td> create_reference();
-
-  void inc_actor_refcnt();
-  void dec_actor_refcnt();
-
-  void inc_request_actor_refcnt();
-  void dec_request_actor_refcnt();
-
-  void close();
-  void on_closed();
-
-  void dec_stop_cnt();
-
-  unique_ptr<TdCallback> callback_;
-  Options td_options_;
-
-  MtprotoHeader::Options options_;
-
-  unique_ptr<Requests> requests_;
-  std::unordered_multimap<uint64, int32> request_set_;
-  int actor_refcnt_ = 0;
-  int request_actor_refcnt_ = 0;
-  int stop_cnt_ = 2;
-  bool destroy_flag_ = false;
-  int close_flag_ = 0;
-
-  enum class State : int32 { WaitParameters, Run, Close } state_ = State::WaitParameters;
-  uint64 set_parameters_request_id_ = 0;
-
-  FlatHashMap<uint64, std::shared_ptr<ResultHandler>> result_handlers_;
-  enum : int8 { RequestActorIdType = 1, ActorIdType = 2 };
-  Container<ActorOwn<Actor>> request_actors_;
-
-  bool can_ignore_background_updates_ = false;
-
-  vector<std::pair<uint64, td_api::object_ptr<td_api::Function>>> pending_preauthentication_requests_;
-
-  vector<std::pair<uint64, td_api::object_ptr<td_api::Function>>> pending_set_parameters_requests_;
-
-  vector<std::pair<uint64, td_api::object_ptr<td_api::Function>>> pending_init_requests_;
-
-  template <class T>
-  void complete_pending_preauthentication_requests(const T &func);
-
-  td_api::object_ptr<td_api::AuthorizationState> get_fake_authorization_state_object() const;
-
-  vector<td_api::object_ptr<td_api::Update>> get_fake_current_state() const;
-
-  template <class T>
-  friend class RequestActor;  // uses send_result/send_error
-  friend class AuthManager;   // uses send_result/send_error, TODO pass Promise<>
-  friend class Requests;
-
-  void add_handler(uint64 id, std::shared_ptr<ResultHandler> handler);
-  std::shared_ptr<ResultHandler> extract_handler(uint64 id);
-
-  void clear_requests();
-
-  std::shared_ptr<ActorContext> old_context_;
-
-  static bool is_authentication_request(int32 id);
-
-  static bool is_preinitialization_request(int32 id);
-
-  static bool is_preauthentication_request(int32 id);
-
-  struct Parameters {
-    int32 api_id_ = 0;
-    string api_hash_;
-    bool use_secret_chats_ = false;
-  };
-
-  void finish_set_parameters();
-
-  void init(Parameters parameters, Result<TdDb::OpenedDatabase> r_opened_database);
-
-  void init_options_and_network();
-
-  void init_file_manager();
-
-  void init_non_actor_managers();
-
-  void init_managers();
-
-  void init_pure_actor_managers();
-
-  void process_binlog_events(TdDb::OpenedDatabase &&events);
-
-  void clear();
-
-  void close_impl(bool destroy_flag);
-
-  Result<std::pair<Parameters, TdDb::Parameters>> get_parameters(
-      td_api::object_ptr<td_api::setTdlibParameters> parameters) TD_WARN_UNUSED_RESULT;
-
-  static td_api::object_ptr<td_api::error> make_error(int32 code, CSlice error) {
-    return td_api::make_object<td_api::error>(code, error.str());
-  }
-
-  // Actor
-  void start_up() final;
-  void tear_down() final;
-  void hangup_shared() final;
-  void hangup() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TdCallback.h b/third-party/td/td/td/telegram/TdCallback.h
deleted file mode 100644
index 83fdb5c454..0000000000
--- a/third-party/td/td/td/telegram/TdCallback.h
+++ /dev/null
@@ -1,42 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-///\file
-
-#include "td/telegram/td_api.h"
-
-#include <cstdint>
-
-namespace td {
-
-/**
- * Interface of callback for low-level interaction with TDLib.
- */
-class TdCallback {
- public:
-  /**
-   * This function is called for every answer to a request made to TDLib and for every incoming update of the type td_api::Update.
-   * \param id Request identifier or 0 for incoming updates.
-   * \param result Answer to the TDLib request or an incoming update.
-   */
-  virtual void on_result(std::uint64_t id, td_api::object_ptr<td_api::Object> result) = 0;
-
-  /**
-   * This function is called for every unsuccessful request made to TDLib.
-   * \param id Request identifier.
-   * \param error An answer to a TDLib request or an incoming update.
-   */
-  virtual void on_error(std::uint64_t id, td_api::object_ptr<td_api::error> error) = 0;
-
-  /**
-   * Destroys the TdCallback.
-   */
-  virtual ~TdCallback() = default;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TdDb.cpp b/third-party/td/td/td/telegram/TdDb.cpp
deleted file mode 100644
index b1439572f4..0000000000
--- a/third-party/td/td/td/telegram/TdDb.cpp
+++ /dev/null
@@ -1,767 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TdDb.h"
-
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/DialogDb.h"
-#include "td/telegram/files/FileDb.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageDb.h"
-#include "td/telegram/MessageThreadDb.h"
-#include "td/telegram/StoryDb.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/Version.h"
-
-#include "td/db/binlog/Binlog.h"
-#include "td/db/binlog/ConcurrentBinlog.h"
-#include "td/db/BinlogKeyValue.h"
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueAsync.h"
-#include "td/db/SqliteKeyValueSafe.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-
-#include <algorithm>
-
-namespace td {
-
-namespace {
-
-std::string get_binlog_path(const TdDb::Parameters &parameters) {
-  return PSTRING() << parameters.database_directory_ << "td" << (parameters.is_test_dc_ ? "_test" : "") << ".binlog";
-}
-
-std::string get_sqlite_path(const TdDb::Parameters &parameters) {
-  const string db_name = "db" + (parameters.is_test_dc_ ? string("_test") : string());
-  return parameters.database_directory_ + db_name + ".sqlite";
-}
-
-Status init_binlog(Binlog &binlog, string path, BinlogKeyValue<Binlog> &binlog_pmc, BinlogKeyValue<Binlog> &config_pmc,
-                   TdDb::OpenedDatabase &events, DbKey key) {
-  auto r_binlog_stat = stat(path);
-  if (r_binlog_stat.is_ok()) {
-    auto since_last_open = Clocks::system() - static_cast<double>(r_binlog_stat.ok().mtime_nsec_) * 1e-9;
-    if (since_last_open >= 86400) {
-      LOG(WARNING) << "Binlog wasn't opened for " << since_last_open << " seconds";
-    }
-    if (since_last_open > 0 && since_last_open < 1e12) {
-      events.since_last_open = static_cast<int64>(since_last_open);
-    }
-  }
-
-  auto callback = [&](const BinlogEvent &event) {
-    switch (event.type_) {
-      case LogEvent::HandlerType::SecretChats:
-        events.to_secret_chats_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::Users:
-        events.user_events.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::Chats:
-        events.chat_events.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::Channels:
-        events.channel_events.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::SecretChatInfos:
-        events.secret_chat_events.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::WebPages:
-        events.web_page_events.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::SetPollAnswer:
-      case LogEvent::HandlerType::StopPoll:
-        events.to_poll_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::ReorderPinnedDialogsOnServer:
-      case LogEvent::HandlerType::ToggleDialogIsBlockedOnServer:
-      case LogEvent::HandlerType::ToggleDialogIsMarkedAsUnreadOnServer:
-      case LogEvent::HandlerType::ToggleDialogIsPinnedOnServer:
-      case LogEvent::HandlerType::ToggleDialogIsTranslatableOnServer:
-      case LogEvent::HandlerType::ToggleDialogReportSpamStateOnServer:
-      case LogEvent::HandlerType::ToggleDialogViewAsMessagesOnServer:
-        events.to_dialog_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::BlockMessageSenderFromRepliesOnServer:
-      case LogEvent::HandlerType::DeleteAllCallMessagesOnServer:
-      case LogEvent::HandlerType::DeleteAllChannelMessagesFromSenderOnServer:
-      case LogEvent::HandlerType::DeleteDialogHistoryOnServer:
-      case LogEvent::HandlerType::DeleteDialogMessagesByDateOnServer:
-      case LogEvent::HandlerType::DeleteMessagesOnServer:
-      case LogEvent::HandlerType::DeleteScheduledMessagesOnServer:
-      case LogEvent::HandlerType::DeleteTopicHistoryOnServer:
-      case LogEvent::HandlerType::ReadAllDialogMentionsOnServer:
-      case LogEvent::HandlerType::ReadAllDialogReactionsOnServer:
-      case LogEvent::HandlerType::ReadMessageContentsOnServer:
-      case LogEvent::HandlerType::UnpinAllDialogMessagesOnServer:
-        events.to_message_query_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::SendMessage:
-      case LogEvent::HandlerType::DeleteMessage:
-      case LogEvent::HandlerType::ReadHistoryOnServer:
-      case LogEvent::HandlerType::ForwardMessages:
-      case LogEvent::HandlerType::SendBotStartMessage:
-      case LogEvent::HandlerType::SendScreenshotTakenNotificationMessage:
-      case LogEvent::HandlerType::SendInlineQueryResultMessage:
-      case LogEvent::HandlerType::SaveDialogDraftMessageOnServer:
-      case LogEvent::HandlerType::UpdateDialogNotificationSettingsOnServer:
-      case LogEvent::HandlerType::RegetDialog:
-      case LogEvent::HandlerType::GetChannelDifference:
-      case LogEvent::HandlerType::ReadHistoryInSecretChat:
-      case LogEvent::HandlerType::SetDialogFolderIdOnServer:
-      case LogEvent::HandlerType::ReadMessageThreadHistoryOnServer:
-      case LogEvent::HandlerType::SendQuickReplyShortcutMessages:
-        events.to_messages_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::DeleteStoryOnServer:
-      case LogEvent::HandlerType::ReadStoriesOnServer:
-      case LogEvent::HandlerType::LoadDialogExpiringStories:
-      case LogEvent::HandlerType::SendStory:
-      case LogEvent::HandlerType::EditStory:
-        events.to_story_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::ResetAllNotificationSettingsOnServer:
-      case LogEvent::HandlerType::UpdateScopeNotificationSettingsOnServer:
-      case LogEvent::HandlerType::UpdateReactionNotificationSettingsOnServer:
-        events.to_notification_settings_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::AddMessagePushNotification:
-      case LogEvent::HandlerType::EditMessagePushNotification:
-        events.to_notification_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::SaveAppLog:
-        events.save_app_log_events.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::ChangeAuthorizationSettingsOnServer:
-      case LogEvent::HandlerType::InvalidateSignInCodesOnServer:
-      case LogEvent::HandlerType::ResetAuthorizationOnServer:
-      case LogEvent::HandlerType::ResetAuthorizationsOnServer:
-      case LogEvent::HandlerType::ResetWebAuthorizationOnServer:
-      case LogEvent::HandlerType::ResetWebAuthorizationsOnServer:
-      case LogEvent::HandlerType::SetAccountTtlOnServer:
-      case LogEvent::HandlerType::SetAuthorizationTtlOnServer:
-      case LogEvent::HandlerType::SetDefaultHistoryTtlOnServer:
-        events.to_account_manager.push_back(event.clone());
-        break;
-      case LogEvent::HandlerType::BinlogPmcMagic:
-        binlog_pmc.external_init_handle(event);
-        break;
-      case LogEvent::HandlerType::ConfigPmcMagic:
-        config_pmc.external_init_handle(event);
-        break;
-      default:
-        LOG(FATAL) << "Unsupported log event type " << event.type_;
-    }
-  };
-
-  auto init_status = binlog.init(std::move(path), callback, std::move(key));
-  if (init_status.is_error()) {
-    if (init_status.code() == static_cast<int>(Binlog::Error::WrongPassword)) {
-      return Status::Error(401, "Wrong database encryption key");
-    }
-    return Status::Error(400, init_status.message());
-  }
-  return Status::OK();
-}
-
-}  // namespace
-
-std::shared_ptr<FileDbInterface> TdDb::get_file_db_shared() {
-  return file_db_;
-}
-
-std::shared_ptr<SqliteConnectionSafe> &TdDb::get_sqlite_connection_safe() {
-  return sql_connection_;
-}
-
-BinlogInterface *TdDb::get_binlog_impl(const char *file, int line) {
-  LOG_CHECK(binlog_) << G()->close_flag() << " " << file << " " << line;
-  return binlog_.get();
-}
-
-std::shared_ptr<KeyValueSyncInterface> TdDb::get_binlog_pmc_shared() {
-  CHECK(binlog_pmc_);
-  return binlog_pmc_;
-}
-
-std::shared_ptr<KeyValueSyncInterface> TdDb::get_config_pmc_shared() {
-  CHECK(config_pmc_);
-  return config_pmc_;
-}
-
-KeyValueSyncInterface *TdDb::get_binlog_pmc_impl(const char *file, int line) {
-  LOG_CHECK(binlog_pmc_) << G()->close_flag() << ' ' << file << ' ' << line;
-  return binlog_pmc_.get();
-}
-
-KeyValueSyncInterface *TdDb::get_config_pmc() {
-  CHECK(config_pmc_);
-  return config_pmc_.get();
-}
-
-SqliteKeyValue *TdDb::get_sqlite_sync_pmc() {
-  CHECK(common_kv_safe_);
-  return &common_kv_safe_->get();
-}
-
-SqliteKeyValueAsyncInterface *TdDb::get_sqlite_pmc() {
-  CHECK(common_kv_async_);
-  return common_kv_async_.get();
-}
-
-MessageDbSyncInterface *TdDb::get_message_db_sync() {
-  return &message_db_sync_safe_->get();
-}
-
-MessageDbAsyncInterface *TdDb::get_message_db_async() {
-  return message_db_async_.get();
-}
-
-MessageThreadDbSyncInterface *TdDb::get_message_thread_db_sync() {
-  return &message_thread_db_sync_safe_->get();
-}
-
-MessageThreadDbAsyncInterface *TdDb::get_message_thread_db_async() {
-  return message_thread_db_async_.get();
-}
-
-DialogDbSyncInterface *TdDb::get_dialog_db_sync() {
-  return &dialog_db_sync_safe_->get();
-}
-
-DialogDbAsyncInterface *TdDb::get_dialog_db_async() {
-  return dialog_db_async_.get();
-}
-
-StoryDbSyncInterface *TdDb::get_story_db_sync() {
-  return &story_db_sync_safe_->get();
-}
-
-StoryDbAsyncInterface *TdDb::get_story_db_async() {
-  return story_db_async_.get();
-}
-
-void TdDb::flush_all() {
-  LOG(INFO) << "Flush all databases";
-  if (message_db_async_) {
-    message_db_async_->force_flush();
-  }
-  if (message_thread_db_async_) {
-    message_thread_db_async_->force_flush();
-  }
-  if (dialog_db_async_) {
-    dialog_db_async_->force_flush();
-  }
-  if (story_db_async_) {
-    story_db_async_->force_flush();
-  }
-  CHECK(binlog_ != nullptr);
-  binlog_->force_flush();
-}
-
-void TdDb::close(int32 scheduler_id, bool destroy_flag, Promise<Unit> on_finished) {
-  Scheduler::instance()->run_on_scheduler(scheduler_id,
-                                          [this, destroy_flag, on_finished = std::move(on_finished)](Unit) mutable {
-                                            do_close(destroy_flag, std::move(on_finished));
-                                          });
-}
-
-void TdDb::do_close(bool destroy_flag, Promise<Unit> on_finished) {
-  if (destroy_flag) {
-    LOG(INFO) << "Destroy all databases";
-  } else {
-    LOG(INFO) << "Close all databases";
-  }
-  MultiPromiseActorSafe mpas{"TdDbCloseMultiPromiseActor"};
-  mpas.add_promise(PromiseCreator::lambda(
-      [promise = std::move(on_finished), sql_connection = std::move(sql_connection_), destroy_flag](Unit) mutable {
-        if (sql_connection) {
-          if (destroy_flag) {
-            sql_connection->close_and_destroy();
-          } else {
-            sql_connection->close();
-          }
-          sql_connection.reset();
-        }
-        promise.set_value(Unit());
-      }));
-  auto lock = mpas.get_promise();
-
-  if (file_db_) {
-    file_db_->close(mpas.get_promise());
-    file_db_.reset();
-  }
-
-  common_kv_safe_.reset();
-  if (common_kv_async_) {
-    common_kv_async_->close(mpas.get_promise());
-  }
-
-  message_db_sync_safe_.reset();
-  if (message_db_async_) {
-    message_db_async_->close(mpas.get_promise());
-  }
-
-  message_thread_db_sync_safe_.reset();
-  if (message_thread_db_async_) {
-    message_thread_db_async_->close(mpas.get_promise());
-  }
-
-  dialog_db_sync_safe_.reset();
-  if (dialog_db_async_) {
-    dialog_db_async_->close(mpas.get_promise());
-  }
-
-  story_db_sync_safe_.reset();
-  if (story_db_async_) {
-    story_db_async_->close(mpas.get_promise());
-  }
-
-  // binlog_pmc is dependent on binlog_ and anyway it doesn't support close_and_destroy
-  binlog_pmc_.reset();
-  config_pmc_.reset();
-
-  if (binlog_) {
-    if (destroy_flag) {
-      binlog_->close_and_destroy(mpas.get_promise());
-    } else {
-      binlog_->close(mpas.get_promise());
-    }
-    binlog_.reset();
-  }
-
-  lock.set_value(Unit());
-}
-
-Status TdDb::init_sqlite(const Parameters &parameters, const DbKey &key, const DbKey &old_key,
-                         BinlogKeyValue<Binlog> &binlog_pmc) {
-  CHECK(!parameters.use_message_database_ || parameters.use_chat_info_database_);
-  CHECK(!parameters.use_chat_info_database_ || parameters.use_file_database_);
-
-  const string sql_database_path = get_sqlite_path(parameters);
-
-  bool use_sqlite = parameters.use_file_database_;
-  bool use_file_database = parameters.use_file_database_;
-  bool use_dialog_db = parameters.use_message_database_;
-  bool use_message_thread_db = parameters.use_message_database_ && false;
-  bool use_message_database = parameters.use_message_database_;
-  bool use_story_database = parameters.use_message_database_;
-
-  was_dialog_db_created_ = false;
-
-  if (!use_sqlite) {
-    SqliteDb::destroy(sql_database_path).ignore();
-    return Status::OK();
-  }
-
-  TRY_RESULT(db_instance, SqliteDb::change_key(sql_database_path, true, key, old_key));
-  sql_connection_ = std::make_shared<SqliteConnectionSafe>(sql_database_path, key, db_instance.get_cipher_version());
-  sql_connection_->set(std::move(db_instance));
-  auto &db = sql_connection_->get();
-  TRY_STATUS(db.exec("PRAGMA journal_mode=WAL"));
-  TRY_STATUS(db.exec("PRAGMA secure_delete=1"));
-
-  // Init databases
-  // Do initialization once and before everything else to avoid "database is locked" error.
-  // Must be in a transaction
-
-  // NB: when database is dropped we should also drop corresponding binlog events
-  TRY_STATUS(db.exec("BEGIN TRANSACTION"));
-
-  // Get 'PRAGMA user_version'
-  TRY_RESULT(user_version, db.user_version());
-  LOG(INFO) << "Have PRAGMA user_version = " << user_version;
-
-  // init DialogDb
-  if (use_dialog_db) {
-    TRY_STATUS(init_dialog_db(db, user_version, binlog_pmc, was_dialog_db_created_));
-  } else {
-    TRY_STATUS(drop_dialog_db(db, user_version));
-  }
-
-  // init MessageThreadDb
-  if (use_message_thread_db) {
-    TRY_STATUS(init_message_thread_db(db, user_version));
-  } else {
-    TRY_STATUS(drop_message_thread_db(db, user_version));
-  }
-
-  // init MessageDb
-  if (use_message_database) {
-    TRY_STATUS(init_message_db(db, user_version));
-  } else {
-    TRY_STATUS(drop_message_db(db, user_version));
-  }
-
-  // init StoryDb
-  if (use_story_database) {
-    TRY_STATUS(init_story_db(db, user_version));
-  } else {
-    TRY_STATUS(drop_story_db(db, user_version));
-  }
-
-  // init FileDb
-  if (use_file_database) {
-    TRY_STATUS(init_file_db(db, user_version));
-  } else {
-    TRY_STATUS(drop_file_db(db, user_version));
-  }
-
-  // Update 'PRAGMA user_version'
-  auto db_version = current_db_version();
-  if (db_version != user_version) {
-    LOG(WARNING) << "Set PRAGMA user_version = " << db_version;
-    TRY_STATUS(db.set_user_version(db_version));
-  }
-
-  if (was_dialog_db_created_) {
-    binlog_pmc.erase_by_prefix("pinned_dialog_ids");
-    binlog_pmc.erase_by_prefix("last_server_dialog_date");
-    binlog_pmc.erase_by_prefix("unread_message_count");
-    binlog_pmc.erase_by_prefix("unread_dialog_count");
-    binlog_pmc.erase("sponsored_dialog_id");
-    binlog_pmc.erase_by_prefix("top_dialogs#");
-    binlog_pmc.erase("dlds_counter");
-    binlog_pmc.erase_by_prefix("dlds#");
-    binlog_pmc.erase("fetched_marks_as_unread");
-    binlog_pmc.erase_by_prefix("public_channels");
-    binlog_pmc.erase("channels_to_send_stories");
-    binlog_pmc.erase_by_prefix("saved_messages_tags");
-  }
-  if (user_version == 0) {
-    binlog_pmc.erase("next_contacts_sync_date");
-    binlog_pmc.erase("saved_contact_count");
-    binlog_pmc.erase("old_featured_sticker_set_count");
-    binlog_pmc.erase("invalidate_old_featured_sticker_sets");
-    binlog_pmc.erase(AttachMenuManager::get_attach_menu_bots_database_key());
-  }
-  binlog_pmc.force_sync(Auto(), "init_sqlite");
-
-  TRY_STATUS(db.exec("COMMIT TRANSACTION"));
-
-  file_db_ = create_file_db(sql_connection_);
-
-  common_kv_safe_ = std::make_shared<SqliteKeyValueSafe>("common", sql_connection_);
-  common_kv_async_ = create_sqlite_key_value_async(common_kv_safe_);
-
-  if (was_dialog_db_created_) {
-    auto *sqlite_pmc = get_sqlite_sync_pmc();
-    sqlite_pmc->erase("calls_db_state");
-    sqlite_pmc->erase("di_active_live_location_messages");
-    sqlite_pmc->erase_by_prefix("channel_recommendations");
-  }
-
-  if (use_dialog_db) {
-    dialog_db_sync_safe_ = create_dialog_db_sync(sql_connection_);
-    dialog_db_async_ = create_dialog_db_async(dialog_db_sync_safe_);
-  }
-
-  if (use_message_thread_db) {
-    message_thread_db_sync_safe_ = create_message_thread_db_sync(sql_connection_);
-    message_thread_db_async_ = create_message_thread_db_async(message_thread_db_sync_safe_);
-  }
-
-  if (use_message_database) {
-    message_db_sync_safe_ = create_message_db_sync(sql_connection_);
-    message_db_async_ = create_message_db_async(message_db_sync_safe_);
-  }
-
-  if (use_story_database) {
-    story_db_sync_safe_ = create_story_db_sync(sql_connection_);
-    story_db_async_ = create_story_db_async(story_db_sync_safe_);
-  }
-
-  return Status::OK();
-}
-
-void TdDb::open(int32 scheduler_id, Parameters parameters, Promise<OpenedDatabase> &&promise) {
-  Scheduler::instance()->run_on_scheduler(
-      scheduler_id, [parameters = std::move(parameters), promise = std::move(promise)](Unit) mutable {
-        TdDb::open_impl(std::move(parameters), std::move(promise));
-      });
-}
-
-void TdDb::open_impl(Parameters parameters, Promise<OpenedDatabase> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_parameters(parameters));
-
-  OpenedDatabase result;
-
-  // Init pmc
-  Binlog *binlog_ptr = nullptr;
-  auto binlog = std::shared_ptr<Binlog>(new Binlog, [&](Binlog *ptr) { binlog_ptr = ptr; });
-
-  auto binlog_pmc = make_unique<BinlogKeyValue<Binlog>>();
-  auto config_pmc = make_unique<BinlogKeyValue<Binlog>>();
-  binlog_pmc->external_init_begin(static_cast<int32>(LogEvent::HandlerType::BinlogPmcMagic));
-  config_pmc->external_init_begin(static_cast<int32>(LogEvent::HandlerType::ConfigPmcMagic));
-
-  bool encrypt_binlog = !parameters.encryption_key_.is_empty();
-  VLOG(td_init) << "Start binlog loading";
-  TRY_STATUS_PROMISE(promise, init_binlog(*binlog, get_binlog_path(parameters), *binlog_pmc, *config_pmc, result,
-                                          std::move(parameters.encryption_key_)));
-  VLOG(td_init) << "Finish binlog loading";
-
-  binlog_pmc->external_init_finish(binlog);
-  VLOG(td_init) << "Finish initialization of binlog PMC";
-  config_pmc->external_init_finish(binlog);
-  VLOG(td_init) << "Finish initialization of config PMC";
-
-  if (parameters.use_file_database_ && binlog_pmc->get("auth").empty()) {
-    LOG(INFO) << "Destroy SQLite database, because wasn't authorized yet";
-    SqliteDb::destroy(get_sqlite_path(parameters)).ignore();
-  }
-
-  DbKey new_sqlite_key;
-  DbKey old_sqlite_key;
-  bool encrypt_sqlite = encrypt_binlog;
-  bool drop_sqlite_key = false;
-  auto sqlite_key = binlog_pmc->get("sqlite_key");
-  if (encrypt_sqlite) {
-    if (sqlite_key.empty()) {
-      sqlite_key = string(32, ' ');
-      Random::secure_bytes(sqlite_key);
-      binlog_pmc->set("sqlite_key", sqlite_key);
-      if (parameters.use_file_database_) {
-        binlog_pmc->force_sync(Auto(), "TdDb::open_impl 1");
-      }
-    }
-    new_sqlite_key = DbKey::raw_key(std::move(sqlite_key));
-  } else {
-    if (!sqlite_key.empty()) {
-      old_sqlite_key = DbKey::raw_key(std::move(sqlite_key));
-      drop_sqlite_key = true;
-    }
-  }
-  VLOG(td_init) << "Start to init database";
-  auto db = make_unique<TdDb>();
-  auto init_sqlite_status = db->init_sqlite(parameters, new_sqlite_key, old_sqlite_key, *binlog_pmc);
-  VLOG(td_init) << "Finish to init database";
-  if (init_sqlite_status.is_error()) {
-    LOG(ERROR) << "Destroy bad SQLite database because of " << init_sqlite_status;
-    if (db->sql_connection_ != nullptr) {
-      db->sql_connection_->get().close();
-    }
-    SqliteDb::destroy(get_sqlite_path(parameters)).ignore();
-    init_sqlite_status = db->init_sqlite(parameters, new_sqlite_key, old_sqlite_key, *binlog_pmc);
-    if (init_sqlite_status.is_error()) {
-      return promise.set_error(Status::Error(400, init_sqlite_status.message()));
-    }
-  }
-  if (drop_sqlite_key) {
-    binlog_pmc->erase("sqlite_key");
-    binlog_pmc->force_sync(Auto(), "TdDb::open_impl 2");
-  }
-
-  VLOG(td_init) << "Create concurrent_binlog_pmc";
-  auto concurrent_binlog_pmc = std::make_shared<BinlogKeyValue<ConcurrentBinlog>>();
-  concurrent_binlog_pmc->external_init_begin(binlog_pmc->get_magic());
-  concurrent_binlog_pmc->external_init_handle(std::move(*binlog_pmc));
-
-  VLOG(td_init) << "Create concurrent_config_pmc";
-  auto concurrent_config_pmc = std::make_shared<BinlogKeyValue<ConcurrentBinlog>>();
-  concurrent_config_pmc->external_init_begin(config_pmc->get_magic());
-  concurrent_config_pmc->external_init_handle(std::move(*config_pmc));
-
-  binlog.reset();
-  binlog_pmc.reset();
-  config_pmc.reset();
-
-  CHECK(binlog_ptr != nullptr);
-  VLOG(td_init) << "Create concurrent_binlog";
-  auto concurrent_binlog = std::make_shared<ConcurrentBinlog>(unique_ptr<Binlog>(binlog_ptr));
-
-  VLOG(td_init) << "Init concurrent_binlog_pmc";
-  concurrent_binlog_pmc->external_init_finish(concurrent_binlog);
-  VLOG(td_init) << "Init concurrent_config_pmc";
-  concurrent_config_pmc->external_init_finish(concurrent_binlog);
-
-  LOG(INFO) << "Successfully inited database in directory " << parameters.database_directory_ << " and files directory "
-            << parameters.files_directory_;
-
-  db->parameters_ = std::move(parameters);
-  db->binlog_pmc_ = std::move(concurrent_binlog_pmc);
-  db->config_pmc_ = std::move(concurrent_config_pmc);
-  db->binlog_ = std::move(concurrent_binlog);
-
-  result.database = std::move(db);
-
-  promise.set_value(std::move(result));
-}
-
-TdDb::TdDb() = default;
-
-TdDb::~TdDb() {
-  LOG_IF(ERROR, binlog_ != nullptr) << "Failed to close the database";
-}
-
-Status TdDb::check_parameters(Parameters &parameters) {
-  if (parameters.database_directory_.empty()) {
-    parameters.database_directory_ = ".";
-  }
-  if (parameters.use_message_database_ && !parameters.use_chat_info_database_) {
-    parameters.use_chat_info_database_ = true;
-  }
-  if (parameters.use_chat_info_database_ && !parameters.use_file_database_) {
-    parameters.use_file_database_ = true;
-  }
-
-  auto prepare_dir = [](string dir) -> Result<string> {
-    CHECK(!dir.empty());
-    if (dir.back() != TD_DIR_SLASH) {
-      dir += TD_DIR_SLASH;
-    }
-    TRY_STATUS(mkpath(dir, 0750));
-    TRY_RESULT(real_dir, realpath(dir, true));
-    if (real_dir.empty()) {
-      return Status::Error(PSTRING() << "Failed to get realpath for \"" << dir << '"');
-    }
-    if (real_dir.back() != TD_DIR_SLASH) {
-      real_dir += TD_DIR_SLASH;
-    }
-    return real_dir;
-  };
-
-  auto r_database_directory = prepare_dir(parameters.database_directory_);
-  if (r_database_directory.is_error()) {
-    VLOG(td_init) << "Invalid database directory";
-    return Status::Error(400, PSLICE() << "Can't init database in the directory \"" << parameters.database_directory_
-                                       << "\": " << r_database_directory.error());
-  }
-  parameters.database_directory_ = r_database_directory.move_as_ok();
-
-  if (parameters.files_directory_.empty()) {
-    parameters.files_directory_ = parameters.database_directory_;
-  } else {
-    auto r_files_directory = prepare_dir(parameters.files_directory_);
-    if (r_files_directory.is_error()) {
-      VLOG(td_init) << "Invalid files directory";
-      return Status::Error(400, PSLICE() << "Can't init files directory \"" << parameters.files_directory_
-                                         << "\": " << r_files_directory.error());
-    }
-    parameters.files_directory_ = r_files_directory.move_as_ok();
-  }
-
-  return Status::OK();
-}
-
-DbKey TdDb::as_db_key(string key) {
-  if (key.empty()) {
-    return DbKey::raw_key("cucumber");
-  }
-  return DbKey::raw_key(std::move(key));
-}
-
-void TdDb::change_key(DbKey key, Promise<> promise) {
-  get_binlog()->change_key(std::move(key), std::move(promise));
-}
-
-Status TdDb::destroy(const Parameters &parameters) {
-  SqliteDb::destroy(get_sqlite_path(parameters)).ignore();
-  Binlog::destroy(get_binlog_path(parameters)).ignore();
-  return Status::OK();
-}
-
-void TdDb::with_db_path(const std::function<void(CSlice)> &callback) {
-  SqliteDb::with_db_path(get_sqlite_path(parameters_), callback);
-  CHECK(binlog_ != nullptr);
-  callback(binlog_->get_path());
-}
-
-Result<string> TdDb::get_stats() {
-  auto sb = StringBuilder({}, true);
-  auto &sql = sql_connection_->get();
-  auto run_query = [&](CSlice query, Slice desc) -> Status {
-    TRY_RESULT(stmt, sql.get_statement(query));
-    TRY_STATUS(stmt.step());
-    CHECK(stmt.has_row());
-    auto key_size = stmt.view_int64(0);
-    auto value_size = stmt.view_int64(1);
-    auto count = stmt.view_int64(2);
-    sb << query << "\n";
-    sb << desc << ":\n";
-    sb << format::as_size(key_size + value_size) << "\t";
-    sb << format::as_size(key_size) << "\t";
-    sb << format::as_size(value_size) << "\t";
-    sb << format::as_size((key_size + value_size) / (count ? count : 1)) << "\t";
-    sb << "\n";
-    return Status::OK();
-  };
-  auto run_kv_query = [&](Slice mask, Slice table = Slice("common")) {
-    return run_query(PSLICE() << "SELECT SUM(length(k)), SUM(length(v)), COUNT(*) FROM " << table << " WHERE k like '"
-                              << mask << "'",
-                     PSLICE() << table << ":" << mask);
-  };
-  TRY_STATUS(run_query("SELECT 0, SUM(length(data)), COUNT(*) FROM stories WHERE 1", "stories"));
-  TRY_STATUS(run_query("SELECT 0, SUM(length(data)), COUNT(*) FROM messages WHERE 1", "messages"));
-  TRY_STATUS(run_query("SELECT 0, SUM(length(data)), COUNT(*) FROM dialogs WHERE 1", "dialogs"));
-  TRY_STATUS(run_kv_query("%", "common"));
-  TRY_STATUS(run_kv_query("%", "files"));
-  TRY_STATUS(run_kv_query("wp%"));
-  TRY_STATUS(run_kv_query("wpurl%"));
-  TRY_STATUS(run_kv_query("wpiv%"));
-  TRY_STATUS(run_kv_query("us%"));
-  TRY_STATUS(run_kv_query("ch%"));
-  TRY_STATUS(run_kv_query("ss%"));
-  TRY_STATUS(run_kv_query("gr%"));
-
-  vector<int32> prev(1);
-  size_t count = 0;
-  int32 max_bad_to = 0;
-  size_t bad_count = 0;
-  file_db_->pmc().get_by_range("file0", "file:", [&](Slice key, Slice value) {
-    if (value.substr(0, 2) != "@@") {
-      return true;
-    }
-    count++;
-    auto from = to_integer<int32>(key.substr(4));
-    auto to = to_integer<int32>(value.substr(2));
-    if (from <= to) {
-      LOG(DEBUG) << "Have forward reference from " << from << " to " << to;
-      if (to > max_bad_to) {
-        max_bad_to = to;
-      }
-      bad_count++;
-      return true;
-    }
-    if (static_cast<size_t>(from) >= prev.size()) {
-      prev.resize(from + 1);
-    }
-    if (static_cast<size_t>(to) >= prev.size()) {
-      prev.resize(to + 1);
-    }
-    prev[from] = to;
-    return true;
-  });
-  for (size_t i = 1; i < prev.size(); i++) {
-    if (!prev[i]) {
-      continue;
-    }
-    prev[i] = prev[prev[i]] + 1;
-  }
-  sb << "Max file database depth out of " << prev.size() << '/' << count
-     << " elements: " << *std::max_element(prev.begin(), prev.end()) << "\n";
-  sb << "Have " << bad_count << " forward references with maximum reference to " << max_bad_to;
-
-  return sb.as_cslice().str();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TdDb.h b/third-party/td/td/td/telegram/TdDb.h
deleted file mode 100644
index 0ce4e04393..0000000000
--- a/third-party/td/td/td/telegram/TdDb.h
+++ /dev/null
@@ -1,199 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogInterface.h"
-#include "td/db/DbKey.h"
-#include "td/db/KeyValueSyncInterface.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <functional>
-#include <memory>
-
-namespace td {
-
-class Binlog;
-template <class BinlogT>
-class BinlogKeyValue;
-class ConcurrentBinlog;
-class DialogDbSyncInterface;
-class DialogDbSyncSafeInterface;
-class DialogDbAsyncInterface;
-class FileDbInterface;
-class MessageDbSyncInterface;
-class MessageDbSyncSafeInterface;
-class MessageDbAsyncInterface;
-class MessageThreadDbSyncInterface;
-class MessageThreadDbSyncSafeInterface;
-class MessageThreadDbAsyncInterface;
-class SqliteConnectionSafe;
-class SqliteKeyValueSafe;
-class SqliteKeyValueAsyncInterface;
-class SqliteKeyValue;
-class StoryDbSyncInterface;
-class StoryDbSyncSafeInterface;
-class StoryDbAsyncInterface;
-
-class TdDb {
- public:
-  TdDb();
-  TdDb(const TdDb &) = delete;
-  TdDb &operator=(const TdDb &) = delete;
-  TdDb(TdDb &&) = delete;
-  TdDb &operator=(TdDb &&) = delete;
-  ~TdDb();
-
-  struct Parameters {
-    DbKey encryption_key_;
-    string database_directory_;
-    string files_directory_;
-    bool is_test_dc_ = false;
-    bool use_file_database_ = false;
-    bool use_chat_info_database_ = false;
-    bool use_message_database_ = false;
-  };
-
-  struct OpenedDatabase {
-    unique_ptr<TdDb> database;
-
-    vector<BinlogEvent> to_secret_chats_manager;
-    vector<BinlogEvent> user_events;
-    vector<BinlogEvent> chat_events;
-    vector<BinlogEvent> channel_events;
-    vector<BinlogEvent> secret_chat_events;
-    vector<BinlogEvent> web_page_events;
-    vector<BinlogEvent> save_app_log_events;
-    vector<BinlogEvent> to_account_manager;
-    vector<BinlogEvent> to_dialog_manager;
-    vector<BinlogEvent> to_message_query_manager;
-    vector<BinlogEvent> to_messages_manager;
-    vector<BinlogEvent> to_notification_manager;
-    vector<BinlogEvent> to_notification_settings_manager;
-    vector<BinlogEvent> to_poll_manager;
-    vector<BinlogEvent> to_story_manager;
-
-    int64 since_last_open = 0;
-  };
-  static void open(int32 scheduler_id, Parameters parameters, Promise<OpenedDatabase> &&promise);
-
-  static Status destroy(const Parameters &parameters);
-
-  Slice get_database_directory() const {
-    return parameters_.database_directory_;
-  }
-
-  Slice get_files_directory() const {
-    return parameters_.files_directory_;
-  }
-
-  bool is_test_dc() const {
-    return parameters_.is_test_dc_;
-  }
-
-  bool use_file_database() const {
-    return parameters_.use_file_database_;
-  }
-
-  bool use_sqlite_pmc() const {
-    return parameters_.use_file_database_;
-  }
-
-  bool use_chat_info_database() const {
-    return parameters_.use_chat_info_database_;
-  }
-
-  bool use_message_database() const {
-    return parameters_.use_message_database_;
-  }
-
-  bool was_dialog_db_created() const {
-    return was_dialog_db_created_;
-  }
-
-  std::shared_ptr<FileDbInterface> get_file_db_shared();
-  std::shared_ptr<SqliteConnectionSafe> &get_sqlite_connection_safe();
-#define get_binlog() get_binlog_impl(__FILE__, __LINE__)
-  BinlogInterface *get_binlog_impl(const char *file, int line);
-
-  std::shared_ptr<KeyValueSyncInterface> get_binlog_pmc_shared();
-  std::shared_ptr<KeyValueSyncInterface> get_config_pmc_shared();
-
-#define get_binlog_pmc() get_binlog_pmc_impl(__FILE__, __LINE__)
-  KeyValueSyncInterface *get_binlog_pmc_impl(const char *file, int line);
-  KeyValueSyncInterface *get_config_pmc();
-
-  SqliteKeyValue *get_sqlite_sync_pmc();
-  SqliteKeyValueAsyncInterface *get_sqlite_pmc();
-
-  void flush_all();
-
-  void close(int32 scheduler_id, bool destroy_flag, Promise<Unit> on_finished);
-
-  MessageDbSyncInterface *get_message_db_sync();
-  MessageDbAsyncInterface *get_message_db_async();
-
-  MessageThreadDbSyncInterface *get_message_thread_db_sync();
-  MessageThreadDbAsyncInterface *get_message_thread_db_async();
-
-  DialogDbSyncInterface *get_dialog_db_sync();
-  DialogDbAsyncInterface *get_dialog_db_async();
-
-  StoryDbSyncInterface *get_story_db_sync();
-  StoryDbAsyncInterface *get_story_db_async();
-
-  static DbKey as_db_key(string key);
-
-  void change_key(DbKey key, Promise<> promise);
-
-  void with_db_path(const std::function<void(CSlice)> &callback);
-
-  Result<string> get_stats();
-
- private:
-  Parameters parameters_;
-
-  bool was_dialog_db_created_ = false;
-
-  std::shared_ptr<SqliteConnectionSafe> sql_connection_;
-
-  std::shared_ptr<FileDbInterface> file_db_;
-
-  std::shared_ptr<SqliteKeyValueSafe> common_kv_safe_;
-  unique_ptr<SqliteKeyValueAsyncInterface> common_kv_async_;
-
-  std::shared_ptr<MessageDbSyncSafeInterface> message_db_sync_safe_;
-  std::shared_ptr<MessageDbAsyncInterface> message_db_async_;
-
-  std::shared_ptr<MessageThreadDbSyncSafeInterface> message_thread_db_sync_safe_;
-  std::shared_ptr<MessageThreadDbAsyncInterface> message_thread_db_async_;
-
-  std::shared_ptr<DialogDbSyncSafeInterface> dialog_db_sync_safe_;
-  std::shared_ptr<DialogDbAsyncInterface> dialog_db_async_;
-
-  std::shared_ptr<StoryDbSyncSafeInterface> story_db_sync_safe_;
-  std::shared_ptr<StoryDbAsyncInterface> story_db_async_;
-
-  std::shared_ptr<BinlogKeyValue<ConcurrentBinlog>> binlog_pmc_;
-  std::shared_ptr<BinlogKeyValue<ConcurrentBinlog>> config_pmc_;
-  std::shared_ptr<ConcurrentBinlog> binlog_;
-
-  static void open_impl(Parameters parameters, Promise<OpenedDatabase> &&promise);
-
-  static Status check_parameters(Parameters &parameters);
-
-  Status init_sqlite(const Parameters &parameters, const DbKey &key, const DbKey &old_key,
-                     BinlogKeyValue<Binlog> &binlog_pmc);
-
-  void do_close(bool destroy_flag, Promise<Unit> on_finished);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TermsOfService.cpp b/third-party/td/td/td/telegram/TermsOfService.cpp
deleted file mode 100644
index 432c956504..0000000000
--- a/third-party/td/td/td/telegram/TermsOfService.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TermsOfService.h"
-
-namespace td {
-
-TermsOfService::TermsOfService(telegram_api::object_ptr<telegram_api::help_termsOfService> terms) {
-  if (terms == nullptr) {
-    return;
-  }
-
-  id_ = std::move(terms->id_->data_);
-  text_ =
-      get_formatted_text(nullptr, std::move(terms->text_), std::move(terms->entities_), true, false, "TermsOfService");
-  if (text_.text.empty()) {
-    id_.clear();
-  }
-  min_user_age_ = terms->min_age_confirm_;
-  show_popup_ = terms->popup_;
-}
-
-td_api::object_ptr<td_api::termsOfService> TermsOfService::get_terms_of_service_object() const {
-  if (id_.empty()) {
-    return nullptr;
-  }
-
-  return td_api::make_object<td_api::termsOfService>(get_formatted_text_object(nullptr, text_, true, -1), min_user_age_,
-                                                     show_popup_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TermsOfService.h b/third-party/td/td/td/telegram/TermsOfService.h
deleted file mode 100644
index 332bfd4f9d..0000000000
--- a/third-party/td/td/td/telegram/TermsOfService.h
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class TermsOfService {
-  string id_;
-  FormattedText text_;
-  int32 min_user_age_ = 0;
-  bool show_popup_ = true;
-
- public:
-  explicit TermsOfService(telegram_api::object_ptr<telegram_api::help_termsOfService> terms = nullptr);
-
-  Slice get_id() const {
-    return id_;
-  }
-
-  td_api::object_ptr<td_api::termsOfService> get_terms_of_service_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TermsOfService.hpp b/third-party/td/td/td/telegram/TermsOfService.hpp
deleted file mode 100644
index 68eab1f418..0000000000
--- a/third-party/td/td/td/telegram/TermsOfService.hpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/TermsOfService.h"
-
-#include "td/telegram/MessageEntity.hpp"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void TermsOfService::store(StorerT &storer) const {
-  using td::store;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(show_popup_);
-  END_STORE_FLAGS();
-  store(id_, storer);
-  store(text_, storer);
-  store(min_user_age_, storer);
-}
-
-template <class ParserT>
-void TermsOfService::parse(ParserT &parser) {
-  using td::parse;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(show_popup_);
-  END_PARSE_FLAGS();
-  parse(id_, parser);
-  parse(text_, parser);
-  parse(min_user_age_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TermsOfServiceManager.cpp b/third-party/td/td/td/telegram/TermsOfServiceManager.cpp
deleted file mode 100644
index f2253cc7f8..0000000000
--- a/third-party/td/td/td/telegram/TermsOfServiceManager.cpp
+++ /dev/null
@@ -1,201 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TermsOfServiceManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class GetTermsOfServiceUpdateQuery final : public Td::ResultHandler {
-  Promise<std::pair<int32, TermsOfService>> promise_;
-
- public:
-  explicit GetTermsOfServiceUpdateQuery(Promise<std::pair<int32, TermsOfService>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    // we don't poll terms of service before authorization
-    send_query(G()->net_query_creator().create(telegram_api::help_getTermsOfServiceUpdate()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getTermsOfServiceUpdate>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    switch (result->get_id()) {
-      case telegram_api::help_termsOfServiceUpdateEmpty::ID: {
-        auto update = move_tl_object_as<telegram_api::help_termsOfServiceUpdateEmpty>(result);
-        promise_.set_value(std::make_pair(update->expires_, TermsOfService()));
-        break;
-      }
-      case telegram_api::help_termsOfServiceUpdate::ID: {
-        auto update = move_tl_object_as<telegram_api::help_termsOfServiceUpdate>(result);
-        promise_.set_value(std::make_pair(update->expires_, TermsOfService(std::move(update->terms_of_service_))));
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AcceptTermsOfServiceQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit AcceptTermsOfServiceQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &terms_of_service_id) {
-    send_query(G()->net_query_creator().create(telegram_api::help_acceptTermsOfService(
-        telegram_api::make_object<telegram_api::dataJSON>(terms_of_service_id))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_acceptTermsOfService>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.ok();
-    if (!result) {
-      LOG(ERROR) << "Failed to accept terms of service";
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-TermsOfServiceManager::TermsOfServiceManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void TermsOfServiceManager::tear_down() {
-  parent_.reset();
-}
-
-void TermsOfServiceManager::start_up() {
-  init();
-}
-
-void TermsOfServiceManager::init() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (is_inited_ || !td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-  is_inited_ = true;
-
-  schedule_get_terms_of_service(0);
-}
-
-void TermsOfServiceManager::schedule_get_terms_of_service(int32 expires_in) {
-  if (G()->close_flag() || !is_inited_) {
-    return;
-  }
-
-  set_timeout_in(expires_in);
-}
-
-void TermsOfServiceManager::timeout_expired() {
-  if (G()->close_flag() || !is_inited_) {
-    return;
-  }
-
-  get_terms_of_service(
-      PromiseCreator::lambda([actor_id = actor_id(this)](Result<std::pair<int32, TermsOfService>> result) {
-        send_closure(actor_id, &TermsOfServiceManager::on_get_terms_of_service, std::move(result), false);
-      }));
-}
-
-td_api::object_ptr<td_api::updateTermsOfService> TermsOfServiceManager::get_update_terms_of_service_object() const {
-  auto terms_of_service = pending_terms_of_service_.get_terms_of_service_object();
-  if (terms_of_service == nullptr) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::updateTermsOfService>(pending_terms_of_service_.get_id().str(),
-                                                           std::move(terms_of_service));
-}
-
-void TermsOfServiceManager::on_get_terms_of_service(Result<std::pair<int32, TermsOfService>> result, bool dummy) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(is_inited_);
-
-  int32 expires_in = 0;
-  if (result.is_error()) {
-    expires_in = Random::fast(10, 60);
-  } else {
-    auto terms = result.move_as_ok();
-    pending_terms_of_service_ = std::move(terms.second);
-    auto update = get_update_terms_of_service_object();
-    if (update == nullptr) {
-      expires_in = clamp(terms.first - G()->unix_time(), 3600, 86400);
-    } else {
-      send_closure(G()->td(), &Td::send_update, std::move(update));
-    }
-  }
-  if (expires_in > 0) {
-    schedule_get_terms_of_service(expires_in);
-  }
-}
-
-void TermsOfServiceManager::get_terms_of_service(Promise<std::pair<int32, TermsOfService>> promise) {
-  td_->create_handler<GetTermsOfServiceUpdateQuery>(std::move(promise))->send();
-}
-
-void TermsOfServiceManager::accept_terms_of_service(string &&terms_of_service_id, Promise<Unit> &&promise) {
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &TermsOfServiceManager::on_accept_terms_of_service, std::move(promise));
-      });
-  td_->create_handler<AcceptTermsOfServiceQuery>(std::move(query_promise))->send(terms_of_service_id);
-}
-
-void TermsOfServiceManager::on_accept_terms_of_service(Promise<Unit> &&promise) {
-  pending_terms_of_service_ = TermsOfService();
-  promise.set_value(Unit());
-  schedule_get_terms_of_service(0);
-}
-
-void TermsOfServiceManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (!is_inited_) {
-    return;
-  }
-
-  auto update_terms_of_service_object = get_update_terms_of_service_object();
-  if (update_terms_of_service_object != nullptr) {
-    updates.push_back(std::move(update_terms_of_service_object));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TermsOfServiceManager.h b/third-party/td/td/td/telegram/TermsOfServiceManager.h
deleted file mode 100644
index 55b9af07d2..0000000000
--- a/third-party/td/td/td/telegram/TermsOfServiceManager.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/TermsOfService.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class TermsOfServiceManager final : public Actor {
- public:
-  TermsOfServiceManager(Td *td, ActorShared<> parent);
-
-  void init();
-
-  void accept_terms_of_service(string &&terms_of_service_id, Promise<Unit> &&promise);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  void tear_down() final;
-
-  void start_up() final;
-
-  void timeout_expired() final;
-
-  void schedule_get_terms_of_service(int32 expires_in);
-
-  void get_terms_of_service(Promise<std::pair<int32, TermsOfService>> promise);
-
-  td_api::object_ptr<td_api::updateTermsOfService> get_update_terms_of_service_object() const;
-
-  void on_get_terms_of_service(Result<std::pair<int32, TermsOfService>> result, bool dummy);
-
-  void on_accept_terms_of_service(Promise<Unit> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  TermsOfService pending_terms_of_service_;
-
-  bool is_inited_ = false;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ThemeManager.cpp b/third-party/td/td/td/telegram/ThemeManager.cpp
deleted file mode 100644
index 584d271e06..0000000000
--- a/third-party/td/td/td/telegram/ThemeManager.cpp
+++ /dev/null
@@ -1,986 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ThemeManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeSettings.hpp"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/emoji.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-static bool are_colors_valid(const vector<int32> &colors, size_t min_size, size_t max_size) {
-  if (min_size > colors.size() || colors.size() > max_size) {
-    return false;
-  }
-  for (auto &color : colors) {
-    if (color < 0 || color > 0xFFFFFF) {
-      return false;
-    }
-  }
-  return true;
-}
-
-class GetChatThemesQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::account_Themes>> promise_;
-
- public:
-  explicit GetChatThemesQuery(Promise<telegram_api::object_ptr<telegram_api::account_Themes>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::account_getChatThemes(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_getChatThemes>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPeerColorsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::help_PeerColors>> promise_;
-
- public:
-  explicit GetPeerColorsQuery(Promise<telegram_api::object_ptr<telegram_api::help_PeerColors>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int32 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::help_getPeerColors(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getPeerColors>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetPeerProfileColorsQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::help_PeerColors>> promise_;
-
- public:
-  explicit GetPeerProfileColorsQuery(Promise<telegram_api::object_ptr<telegram_api::help_PeerColors>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int32 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::help_getPeerProfileColors(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getPeerProfileColors>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-bool operator==(const ThemeManager::ProfileAccentColor &lhs, const ThemeManager::ProfileAccentColor &rhs) {
-  return lhs.palette_colors_ == rhs.palette_colors_ && lhs.background_colors_ == rhs.background_colors_ &&
-         lhs.story_colors_ == rhs.story_colors_;
-}
-
-bool operator!=(const ThemeManager::ProfileAccentColor &lhs, const ThemeManager::ProfileAccentColor &rhs) {
-  return !(lhs == rhs);
-}
-
-template <class StorerT>
-void ThemeManager::ChatTheme::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(emoji, storer);
-  td::store(id, storer);
-  td::store(light_theme, storer);
-  td::store(dark_theme, storer);
-}
-
-template <class ParserT>
-void ThemeManager::ChatTheme::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(emoji, parser);
-  td::parse(id, parser);
-  td::parse(light_theme, parser);
-  td::parse(dark_theme, parser);
-}
-
-template <class StorerT>
-void ThemeManager::ChatThemes::store(StorerT &storer) const {
-  td::store(hash, storer);
-  td::store(themes, storer);
-}
-
-template <class ParserT>
-void ThemeManager::ChatThemes::parse(ParserT &parser) {
-  td::parse(hash, parser);
-  td::parse(themes, parser);
-}
-
-template <class StorerT>
-void ThemeManager::AccentColors::store(StorerT &storer) const {
-  bool has_hash = hash_ != 0;
-  bool has_min_broadcast_boost_levels = !min_broadcast_boost_levels_.empty();
-  bool has_min_megagroup_boost_levels = !min_megagroup_boost_levels_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_hash);
-  STORE_FLAG(has_min_broadcast_boost_levels);
-  STORE_FLAG(has_min_megagroup_boost_levels);
-  END_STORE_FLAGS();
-  td::store(static_cast<int32>(light_colors_.size()), storer);
-  for (auto &it : light_colors_) {
-    td::store(it.first, storer);
-    td::store(it.second, storer);
-  }
-  td::store(static_cast<int32>(dark_colors_.size()), storer);
-  for (auto &it : dark_colors_) {
-    td::store(it.first, storer);
-    td::store(it.second, storer);
-  }
-  td::store(accent_color_ids_, storer);
-  if (has_hash) {
-    td::store(hash_, storer);
-  }
-  if (has_min_broadcast_boost_levels) {
-    td::store(min_broadcast_boost_levels_, storer);
-  }
-  if (has_min_megagroup_boost_levels) {
-    td::store(min_megagroup_boost_levels_, storer);
-  }
-}
-
-template <class ParserT>
-void ThemeManager::AccentColors::parse(ParserT &parser) {
-  bool has_hash;
-  bool has_min_broadcast_boost_levels;
-  bool has_min_megagroup_boost_levels;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_hash);
-  PARSE_FLAG(has_min_broadcast_boost_levels);
-  PARSE_FLAG(has_min_megagroup_boost_levels);
-  END_PARSE_FLAGS();
-  int32 size;
-  td::parse(size, parser);
-  for (int32 i = 0; i < size; i++) {
-    AccentColorId accent_color_id;
-    vector<int32> colors;
-    td::parse(accent_color_id, parser);
-    td::parse(colors, parser);
-    CHECK(accent_color_id.is_valid());
-    light_colors_.emplace(accent_color_id, std::move(colors));
-  }
-  td::parse(size, parser);
-  for (int32 i = 0; i < size; i++) {
-    AccentColorId accent_color_id;
-    vector<int32> colors;
-    td::parse(accent_color_id, parser);
-    td::parse(colors, parser);
-    CHECK(accent_color_id.is_valid());
-    dark_colors_.emplace(accent_color_id, std::move(colors));
-  }
-  td::parse(accent_color_ids_, parser);
-  if (has_hash) {
-    td::parse(hash_, parser);
-  }
-  if (has_min_broadcast_boost_levels) {
-    td::parse(min_broadcast_boost_levels_, parser);
-  } else {
-    hash_ = 0;
-  }
-  if (has_min_megagroup_boost_levels) {
-    td::parse(min_megagroup_boost_levels_, parser);
-  }
-}
-
-template <class StorerT>
-void ThemeManager::ProfileAccentColor::store(StorerT &storer) const {
-  td::store(palette_colors_, storer);
-  td::store(background_colors_, storer);
-  td::store(story_colors_, storer);
-}
-
-template <class ParserT>
-void ThemeManager::ProfileAccentColor::parse(ParserT &parser) {
-  td::parse(palette_colors_, parser);
-  td::parse(background_colors_, parser);
-  td::parse(story_colors_, parser);
-}
-
-template <class StorerT>
-void ThemeManager::ProfileAccentColors::store(StorerT &storer) const {
-  bool has_hash = hash_ != 0;
-  bool has_min_broadcast_boost_levels = !min_broadcast_boost_levels_.empty();
-  bool has_min_megagroup_boost_levels = !min_megagroup_boost_levels_.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_hash);
-  STORE_FLAG(has_min_broadcast_boost_levels);
-  STORE_FLAG(has_min_megagroup_boost_levels);
-  END_STORE_FLAGS();
-  td::store(static_cast<int32>(light_colors_.size()), storer);
-  for (auto &it : light_colors_) {
-    td::store(it.first, storer);
-    td::store(it.second, storer);
-  }
-  td::store(static_cast<int32>(dark_colors_.size()), storer);
-  for (auto &it : dark_colors_) {
-    td::store(it.first, storer);
-    td::store(it.second, storer);
-  }
-  td::store(accent_color_ids_, storer);
-  if (has_hash) {
-    td::store(hash_, storer);
-  }
-  if (has_min_broadcast_boost_levels) {
-    td::store(min_broadcast_boost_levels_, storer);
-  }
-  if (has_min_megagroup_boost_levels) {
-    td::store(min_megagroup_boost_levels_, storer);
-  }
-}
-
-template <class ParserT>
-void ThemeManager::ProfileAccentColors::parse(ParserT &parser) {
-  bool has_hash;
-  bool has_min_broadcast_boost_levels;
-  bool has_min_megagroup_boost_levels;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_hash);
-  PARSE_FLAG(has_min_broadcast_boost_levels);
-  PARSE_FLAG(has_min_megagroup_boost_levels);
-  END_PARSE_FLAGS();
-  int32 size;
-  td::parse(size, parser);
-  for (int32 i = 0; i < size; i++) {
-    AccentColorId accent_color_id;
-    ProfileAccentColor colors;
-    td::parse(accent_color_id, parser);
-    td::parse(colors, parser);
-    CHECK(accent_color_id.is_valid());
-    light_colors_.emplace(accent_color_id, std::move(colors));
-  }
-  td::parse(size, parser);
-  for (int32 i = 0; i < size; i++) {
-    AccentColorId accent_color_id;
-    ProfileAccentColor colors;
-    td::parse(accent_color_id, parser);
-    td::parse(colors, parser);
-    CHECK(accent_color_id.is_valid());
-    dark_colors_.emplace(accent_color_id, std::move(colors));
-  }
-  td::parse(accent_color_ids_, parser);
-  if (has_hash) {
-    td::parse(hash_, parser);
-  }
-  if (has_min_broadcast_boost_levels) {
-    td::parse(min_broadcast_boost_levels_, parser);
-  } else {
-    hash_ = 0;
-  }
-  if (has_min_megagroup_boost_levels) {
-    td::parse(min_megagroup_boost_levels_, parser);
-  } else {
-    hash_ = 0;
-  }
-}
-
-ThemeManager::ThemeManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  load_accent_colors();
-  load_profile_accent_colors();
-}
-
-void ThemeManager::start_up() {
-  init();
-}
-
-void ThemeManager::load_chat_themes() {  // must not be called in constructor, because uses other managers
-  if (!td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto log_event_string = G()->td_db()->get_binlog_pmc()->get(get_chat_themes_database_key());
-  if (!log_event_string.empty()) {
-    auto status = log_event_parse(chat_themes_, log_event_string);
-    if (status.is_ok()) {
-      send_update_chat_themes();
-    } else {
-      LOG(ERROR) << "Failed to parse chat themes from binlog: " << status;
-      chat_themes_ = ChatThemes();
-    }
-  }
-}
-
-void ThemeManager::load_accent_colors() {
-  if (!td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto log_event_string = G()->td_db()->get_binlog_pmc()->get(get_accent_colors_database_key());
-  if (!log_event_string.empty()) {
-    auto status = log_event_parse(accent_colors_, log_event_string);
-    if (status.is_ok()) {
-      send_update_accent_colors();
-    } else {
-      LOG(ERROR) << "Failed to parse accent colors from binlog: " << status;
-      accent_colors_ = AccentColors();
-    }
-  }
-}
-
-void ThemeManager::load_profile_accent_colors() {
-  if (!td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto log_event_string = G()->td_db()->get_binlog_pmc()->get(get_profile_accent_colors_database_key());
-  if (!log_event_string.empty()) {
-    auto status = log_event_parse(profile_accent_colors_, log_event_string);
-    if (status.is_ok()) {
-      send_update_profile_accent_colors();
-    } else {
-      LOG(ERROR) << "Failed to parse profile accent colors from binlog: " << status;
-      profile_accent_colors_ = ProfileAccentColors();
-    }
-  }
-}
-
-void ThemeManager::init() {
-  load_chat_themes();
-  if (td_->auth_manager_->is_authorized() && !td_->auth_manager_->is_bot()) {
-    if (chat_themes_.hash == 0) {
-      reload_chat_themes();
-    }
-    if (accent_colors_.hash_ == 0) {
-      reload_accent_colors();
-    }
-    if (profile_accent_colors_.hash_ == 0) {
-      reload_profile_accent_colors();
-    }
-  }
-}
-
-void ThemeManager::tear_down() {
-  parent_.reset();
-}
-
-ThemeManager::DialogBoostAvailableCounts ThemeManager::get_dialog_boost_available_count(int32 level,
-                                                                                        bool for_megagroup) {
-  DialogBoostAvailableCounts result;
-  if (level >= td_->option_manager_->get_option_integer(for_megagroup ? Slice("group_wallpaper_level_min")
-                                                                      : Slice("channel_wallpaper_level_min"))) {
-    result.chat_theme_count_ = static_cast<int32>(chat_themes_.themes.size());
-  }
-  {
-    auto &min_boost_levels =
-        for_megagroup ? accent_colors_.min_megagroup_boost_levels_ : accent_colors_.min_broadcast_boost_levels_;
-    for (size_t i = 0; i < min_boost_levels.size(); i++) {
-      if (level >= min_boost_levels[i] && min_boost_levels[i] != 0) {
-        result.accent_color_count_++;
-
-        if (accent_colors_.accent_color_ids_[i].is_built_in()) {
-          result.title_color_count_++;
-          continue;
-        }
-
-        auto it = accent_colors_.light_colors_.find(accent_colors_.accent_color_ids_[i]);
-        CHECK(it != accent_colors_.light_colors_.end());
-        if (it->second.size() == 1) {
-          result.title_color_count_++;
-        }
-      }
-    }
-  }
-  {
-    auto &min_profile_boost_levels = for_megagroup ? profile_accent_colors_.min_megagroup_boost_levels_
-                                                   : profile_accent_colors_.min_broadcast_boost_levels_;
-    for (size_t i = 0; i < min_profile_boost_levels.size(); i++) {
-      if (level >= min_profile_boost_levels[i] && min_profile_boost_levels[i] != 0) {
-        result.profile_accent_color_count_++;
-      }
-    }
-  }
-  return result;
-}
-
-void ThemeManager::on_update_theme(telegram_api::object_ptr<telegram_api::theme> &&theme, Promise<Unit> &&promise) {
-  CHECK(theme != nullptr);
-  bool is_changed = false;
-  bool was_light = false;
-  bool was_dark = false;
-  for (auto &chat_theme : chat_themes_.themes) {
-    if (chat_theme.id == theme->id_) {
-      for (auto &settings : theme->settings_) {
-        ThemeSettings theme_settings(td_, std::move(settings));
-        if (theme_settings.is_empty()) {
-          continue;
-        }
-        if (theme_settings.are_dark()) {
-          if (!was_dark) {
-            was_dark = true;
-            if (chat_theme.dark_theme != theme_settings) {
-              chat_theme.dark_theme = std::move(theme_settings);
-              is_changed = true;
-            }
-          }
-        } else {
-          if (!was_light) {
-            was_light = true;
-            if (chat_theme.light_theme != theme_settings) {
-              chat_theme.light_theme = std::move(theme_settings);
-              is_changed = true;
-            }
-          }
-        }
-      }
-    }
-  }
-  if (is_changed) {
-    save_chat_themes();
-    send_update_chat_themes();
-  }
-  promise.set_value(Unit());
-}
-
-bool ThemeManager::on_update_accent_colors(FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> light_colors,
-                                           FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> dark_colors,
-                                           vector<AccentColorId> accent_color_ids,
-                                           vector<int32> min_broadcast_boost_levels,
-                                           vector<int32> min_megagroup_boost_levels) {
-  auto are_equal = [](const FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> &lhs,
-                      const FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> &rhs) {
-    for (auto &lhs_it : lhs) {
-      auto rhs_it = rhs.find(lhs_it.first);
-      if (rhs_it == rhs.end() || rhs_it->second != lhs_it.second) {
-        return false;
-      }
-    }
-    return true;
-  };
-  if (accent_color_ids == accent_colors_.accent_color_ids_ &&
-      min_broadcast_boost_levels == accent_colors_.min_broadcast_boost_levels_ &&
-      min_megagroup_boost_levels == accent_colors_.min_megagroup_boost_levels_ &&
-      are_equal(light_colors, accent_colors_.light_colors_) && are_equal(dark_colors, accent_colors_.dark_colors_)) {
-    return false;
-  }
-  for (auto &it : light_colors) {
-    accent_colors_.light_colors_[it.first] = std::move(it.second);
-  }
-  for (auto &it : dark_colors) {
-    accent_colors_.dark_colors_[it.first] = std::move(it.second);
-  }
-  accent_colors_.accent_color_ids_ = std::move(accent_color_ids);
-  accent_colors_.min_broadcast_boost_levels_ = std::move(min_broadcast_boost_levels);
-  accent_colors_.min_megagroup_boost_levels_ = std::move(min_megagroup_boost_levels);
-
-  save_accent_colors();
-  send_update_accent_colors();
-  return true;
-}
-
-bool ThemeManager::on_update_profile_accent_colors(
-    FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> light_colors,
-    FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> dark_colors,
-    vector<AccentColorId> accent_color_ids, vector<int32> min_broadcast_boost_levels,
-    vector<int32> min_megagroup_boost_levels) {
-  auto are_equal = [](const FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> &lhs,
-                      const FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> &rhs) {
-    for (auto &lhs_it : lhs) {
-      auto rhs_it = rhs.find(lhs_it.first);
-      if (rhs_it == rhs.end() || rhs_it->second != lhs_it.second) {
-        return false;
-      }
-    }
-    return true;
-  };
-  if (accent_color_ids == profile_accent_colors_.accent_color_ids_ &&
-      min_broadcast_boost_levels == profile_accent_colors_.min_broadcast_boost_levels_ &&
-      min_megagroup_boost_levels == profile_accent_colors_.min_megagroup_boost_levels_ &&
-      are_equal(light_colors, profile_accent_colors_.light_colors_) &&
-      are_equal(dark_colors, profile_accent_colors_.dark_colors_)) {
-    return false;
-  }
-  for (auto &it : light_colors) {
-    profile_accent_colors_.light_colors_[it.first] = std::move(it.second);
-  }
-  for (auto &it : dark_colors) {
-    profile_accent_colors_.dark_colors_[it.first] = std::move(it.second);
-  }
-  profile_accent_colors_.accent_color_ids_ = std::move(accent_color_ids);
-  profile_accent_colors_.min_broadcast_boost_levels_ = std::move(min_broadcast_boost_levels);
-  profile_accent_colors_.min_megagroup_boost_levels_ = std::move(min_megagroup_boost_levels);
-
-  save_profile_accent_colors();
-  send_update_profile_accent_colors();
-  return true;
-}
-
-string ThemeManager::get_theme_parameters_json_string(const td_api::object_ptr<td_api::themeParameters> &theme) {
-  return json_encode<string>(json_object([&theme](auto &o) {
-    auto get_color = [](int32 color) {
-      string res(7, '#');
-      const char *hex = "0123456789abcdef";
-      for (int i = 0; i < 3; i++) {
-        int32 num = (color >> ((2 - i) * 8)) & 0xFF;
-        res[2 * i + 1] = hex[num >> 4];
-        res[2 * i + 2] = hex[num & 15];
-      }
-      return res;
-    };
-    o("bg_color", get_color(theme->background_color_));
-    o("secondary_bg_color", get_color(theme->secondary_background_color_));
-    o("text_color", get_color(theme->text_color_));
-    o("hint_color", get_color(theme->hint_color_));
-    o("link_color", get_color(theme->link_color_));
-    o("button_color", get_color(theme->button_color_));
-    o("button_text_color", get_color(theme->button_text_color_));
-    o("header_bg_color", get_color(theme->header_background_color_));
-    o("bottom_bar_bg_color", get_color(theme->bottom_bar_background_color_));
-    o("section_bg_color", get_color(theme->section_background_color_));
-    o("section_separator_color", get_color(theme->section_separator_color_));
-    o("accent_text_color", get_color(theme->accent_text_color_));
-    o("section_header_text_color", get_color(theme->section_header_text_color_));
-    o("subtitle_text_color", get_color(theme->subtitle_text_color_));
-    o("destructive_text_color", get_color(theme->destructive_text_color_));
-  }));
-}
-
-int32 ThemeManager::get_accent_color_id_object(AccentColorId accent_color_id,
-                                               AccentColorId fallback_accent_color_id) const {
-  if (accent_color_id.is_valid() && (td_->auth_manager_->is_bot() || accent_color_id.is_built_in() ||
-                                     accent_colors_.light_colors_.count(accent_color_id) != 0)) {
-    return accent_color_id.get();
-  }
-  if (!fallback_accent_color_id.is_valid()) {
-    return 5;  // blue
-  }
-  CHECK(fallback_accent_color_id.is_built_in());
-  return fallback_accent_color_id.get();
-}
-
-int32 ThemeManager::get_profile_accent_color_id_object(AccentColorId accent_color_id) const {
-  if (!accent_color_id.is_valid()) {
-    return -1;
-  }
-  if (td_->auth_manager_->is_bot() || profile_accent_colors_.light_colors_.count(accent_color_id) != 0) {
-    return accent_color_id.get();
-  }
-  return -1;
-}
-
-td_api::object_ptr<td_api::chatTheme> ThemeManager::get_chat_theme_object(const ChatTheme &theme) const {
-  return td_api::make_object<td_api::chatTheme>(theme.emoji, theme.light_theme.get_theme_settings_object(td_),
-                                                theme.dark_theme.get_theme_settings_object(td_));
-}
-
-td_api::object_ptr<td_api::updateChatThemes> ThemeManager::get_update_chat_themes_object() const {
-  return td_api::make_object<td_api::updateChatThemes>(
-      transform(chat_themes_.themes, [this](const ChatTheme &theme) { return get_chat_theme_object(theme); }));
-}
-
-td_api::object_ptr<td_api::updateAccentColors> ThemeManager::get_update_accent_colors_object() const {
-  return accent_colors_.get_update_accent_colors_object();
-}
-
-td_api::object_ptr<td_api::updateAccentColors> ThemeManager::AccentColors::get_update_accent_colors_object() const {
-  vector<td_api::object_ptr<td_api::accentColor>> colors;
-  int32 base_colors[] = {0xDF2020, 0xDFA520, 0xA040A0, 0x208020, 0x20DFDF, 0x2044DF, 0xDF1493};
-  auto get_distance = [](int32 lhs_color, int32 rhs_color) {
-    auto get_color_distance = [](int32 lhs, int32 rhs) {
-      auto diff = max(lhs & 255, 0) - max(rhs & 255, 0);
-      return diff * diff;
-    };
-    return get_color_distance(lhs_color, rhs_color) + get_color_distance(lhs_color >> 8, rhs_color >> 8) +
-           get_color_distance(lhs_color >> 16, rhs_color >> 16);
-  };
-  FlatHashMap<AccentColorId, int32, AccentColorIdHash> min_broadcast_boost_levels;
-  for (size_t i = 0; i < min_broadcast_boost_levels_.size(); i++) {
-    CHECK(i < accent_color_ids_.size());
-    min_broadcast_boost_levels[accent_color_ids_[i]] = min_broadcast_boost_levels_[i];
-  }
-  for (auto &it : light_colors_) {
-    auto light_colors = it.second;
-    auto dark_it = dark_colors_.find(it.first);
-    auto dark_colors = dark_it != dark_colors_.end() ? dark_it->second : light_colors;
-    CHECK(!light_colors.empty());
-    CHECK(!dark_colors.empty());
-    auto first_color = light_colors[0];
-    int best_index = 0;
-    int32 best_distance = get_distance(base_colors[0], first_color);
-    for (int i = 1; i < 7; i++) {
-      auto cur_distance = get_distance(base_colors[i], first_color);
-      if (cur_distance < best_distance) {
-        best_distance = cur_distance;
-        best_index = i;
-      }
-    }
-    colors.push_back(td_api::make_object<td_api::accentColor>(it.first.get(), best_index, std::move(light_colors),
-                                                              std::move(dark_colors),
-                                                              min_broadcast_boost_levels[it.first]));
-  }
-  auto available_accent_color_ids =
-      transform(accent_color_ids_, [](AccentColorId accent_color_id) { return accent_color_id.get(); });
-  return td_api::make_object<td_api::updateAccentColors>(std::move(colors), std::move(available_accent_color_ids));
-}
-
-td_api::object_ptr<td_api::updateProfileAccentColors> ThemeManager::get_update_profile_accent_colors_object() const {
-  return profile_accent_colors_.get_update_profile_accent_colors_object();
-}
-
-bool ThemeManager::ProfileAccentColor::is_valid() const {
-  return are_colors_valid(palette_colors_, 1, 2) && are_colors_valid(background_colors_, 1, 2) &&
-         are_colors_valid(story_colors_, 2, 2);
-}
-
-td_api::object_ptr<td_api::profileAccentColors> ThemeManager::ProfileAccentColor::get_profile_accent_colors_object()
-    const {
-  return td_api::make_object<td_api::profileAccentColors>(
-      vector<int32>(palette_colors_), vector<int32>(background_colors_), vector<int32>(story_colors_));
-}
-
-td_api::object_ptr<td_api::updateProfileAccentColors>
-ThemeManager::ProfileAccentColors::get_update_profile_accent_colors_object() const {
-  FlatHashMap<AccentColorId, int32, AccentColorIdHash> min_broadcast_boost_levels;
-  for (size_t i = 0; i < min_broadcast_boost_levels_.size(); i++) {
-    CHECK(i < accent_color_ids_.size());
-    min_broadcast_boost_levels[accent_color_ids_[i]] = min_broadcast_boost_levels_[i];
-  }
-  FlatHashMap<AccentColorId, int32, AccentColorIdHash> min_megagroup_boost_levels;
-  for (size_t i = 0; i < min_megagroup_boost_levels_.size(); i++) {
-    CHECK(i < accent_color_ids_.size());
-    min_megagroup_boost_levels[accent_color_ids_[i]] = min_megagroup_boost_levels_[i];
-  }
-  vector<td_api::object_ptr<td_api::profileAccentColor>> colors;
-  for (auto &it : light_colors_) {
-    auto light_colors = it.second.get_profile_accent_colors_object();
-    auto dark_it = dark_colors_.find(it.first);
-    auto dark_colors = dark_it != dark_colors_.end() ? dark_it->second.get_profile_accent_colors_object()
-                                                     : it.second.get_profile_accent_colors_object();
-    colors.push_back(td_api::make_object<td_api::profileAccentColor>(
-        it.first.get(), std::move(light_colors), std::move(dark_colors), min_megagroup_boost_levels[it.first],
-        min_broadcast_boost_levels[it.first]));
-  }
-  auto available_accent_color_ids =
-      transform(accent_color_ids_, [](AccentColorId accent_color_id) { return accent_color_id.get(); });
-  return td_api::make_object<td_api::updateProfileAccentColors>(std::move(colors),
-                                                                std::move(available_accent_color_ids));
-}
-
-string ThemeManager::get_chat_themes_database_key() {
-  return "chat_themes";
-}
-
-string ThemeManager::get_accent_colors_database_key() {
-  return "accent_colors";
-}
-
-string ThemeManager::get_profile_accent_colors_database_key() {
-  return "profile_accent_colors";
-}
-
-void ThemeManager::save_chat_themes() {
-  G()->td_db()->get_binlog_pmc()->set(get_chat_themes_database_key(), log_event_store(chat_themes_).as_slice().str());
-}
-
-void ThemeManager::save_accent_colors() {
-  G()->td_db()->get_binlog_pmc()->set(get_accent_colors_database_key(),
-                                      log_event_store(accent_colors_).as_slice().str());
-}
-
-void ThemeManager::save_profile_accent_colors() {
-  G()->td_db()->get_binlog_pmc()->set(get_profile_accent_colors_database_key(),
-                                      log_event_store(profile_accent_colors_).as_slice().str());
-}
-
-void ThemeManager::send_update_chat_themes() const {
-  send_closure(G()->td(), &Td::send_update, get_update_chat_themes_object());
-}
-
-void ThemeManager::send_update_accent_colors() const {
-  send_closure(G()->td(), &Td::send_update, get_update_accent_colors_object());
-}
-
-void ThemeManager::send_update_profile_accent_colors() const {
-  send_closure(G()->td(), &Td::send_update, get_update_profile_accent_colors_object());
-}
-
-void ThemeManager::reload_chat_themes() {
-  auto request_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::account_Themes>> result) {
-        send_closure(actor_id, &ThemeManager::on_get_chat_themes, std::move(result));
-      });
-
-  td_->create_handler<GetChatThemesQuery>(std::move(request_promise))->send(chat_themes_.hash);
-}
-
-void ThemeManager::on_get_chat_themes(Result<telegram_api::object_ptr<telegram_api::account_Themes>> result) {
-  if (result.is_error()) {
-    return;
-  }
-
-  auto chat_themes_ptr = result.move_as_ok();
-  LOG(DEBUG) << "Receive " << to_string(chat_themes_ptr);
-  if (chat_themes_ptr->get_id() == telegram_api::account_themesNotModified::ID) {
-    return;
-  }
-  CHECK(chat_themes_ptr->get_id() == telegram_api::account_themes::ID);
-  auto chat_themes = telegram_api::move_object_as<telegram_api::account_themes>(chat_themes_ptr);
-  chat_themes_.hash = chat_themes->hash_;
-  chat_themes_.themes.clear();
-  for (auto &theme : chat_themes->themes_) {
-    if (!is_emoji(theme->emoticon_) || !theme->for_chat_) {
-      LOG(ERROR) << "Receive " << to_string(theme);
-      continue;
-    }
-
-    bool was_light = false;
-    bool was_dark = false;
-    ChatTheme chat_theme;
-    chat_theme.emoji = std::move(theme->emoticon_);
-    chat_theme.id = theme->id_;
-    for (auto &settings : theme->settings_) {
-      ThemeSettings theme_settings(td_, std::move(settings));
-      if (theme_settings.is_empty()) {
-        continue;
-      }
-      if (theme_settings.are_dark()) {
-        if (!was_dark) {
-          was_dark = true;
-          if (chat_theme.dark_theme != theme_settings) {
-            chat_theme.dark_theme = std::move(theme_settings);
-          }
-        }
-      } else {
-        if (!was_light) {
-          was_light = true;
-          if (chat_theme.light_theme != theme_settings) {
-            chat_theme.light_theme = std::move(theme_settings);
-          }
-        }
-      }
-    }
-    if (chat_theme.light_theme.is_empty() || chat_theme.dark_theme.is_empty()) {
-      continue;
-    }
-    chat_themes_.themes.push_back(std::move(chat_theme));
-  }
-
-  save_chat_themes();
-  send_update_chat_themes();
-}
-
-void ThemeManager::reload_accent_colors() {
-  auto request_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::help_PeerColors>> result) {
-        send_closure(actor_id, &ThemeManager::on_get_accent_colors, std::move(result));
-      });
-
-  td_->create_handler<GetPeerColorsQuery>(std::move(request_promise))->send(accent_colors_.hash_);
-}
-
-void ThemeManager::on_get_accent_colors(Result<telegram_api::object_ptr<telegram_api::help_PeerColors>> result) {
-  if (result.is_error()) {
-    return;
-  }
-
-  auto peer_colors_ptr = result.move_as_ok();
-  LOG(DEBUG) << "Receive " << to_string(peer_colors_ptr);
-  if (peer_colors_ptr->get_id() == telegram_api::help_peerColorsNotModified::ID) {
-    return;
-  }
-  CHECK(peer_colors_ptr->get_id() == telegram_api::help_peerColors::ID);
-  auto peer_colors = telegram_api::move_object_as<telegram_api::help_peerColors>(peer_colors_ptr);
-  FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> light_colors;
-  FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> dark_colors;
-  vector<AccentColorId> accent_color_ids;
-  vector<int32> min_broadcast_boost_levels;
-  vector<int32> min_megagroup_boost_levels;
-  for (auto &option : peer_colors->colors_) {
-    if ((option->colors_ != nullptr && option->colors_->get_id() != telegram_api::help_peerColorSet::ID) ||
-        (option->dark_colors_ != nullptr && option->dark_colors_->get_id() != telegram_api::help_peerColorSet::ID)) {
-      LOG(ERROR) << "Receive " << to_string(option);
-      continue;
-    }
-    AccentColorId accent_color_id(option->color_id_);
-    if (!accent_color_id.is_valid() || td::contains(accent_color_ids, accent_color_id) ||
-        (accent_color_id.is_built_in() && (option->colors_ != nullptr || option->dark_colors_ != nullptr)) ||
-        (!accent_color_id.is_built_in() && option->colors_ == nullptr)) {
-      LOG(ERROR) << "Receive " << to_string(option);
-      continue;
-    }
-    bool is_valid = true;
-    vector<int32> current_light_colors;
-    vector<int32> current_dark_colors;
-    if (option->colors_ != nullptr) {
-      auto colors = telegram_api::move_object_as<telegram_api::help_peerColorSet>(option->colors_);
-      current_light_colors = std::move(colors->colors_);
-      if (!are_colors_valid(current_light_colors, 1, 3)) {
-        is_valid = false;
-      }
-    }
-    if (option->dark_colors_ != nullptr) {
-      auto colors = telegram_api::move_object_as<telegram_api::help_peerColorSet>(option->dark_colors_);
-      current_dark_colors = std::move(colors->colors_);
-      if (!are_colors_valid(current_dark_colors, 1, 3)) {
-        is_valid = false;
-      }
-    }
-    if (!is_valid) {
-      LOG(ERROR) << "Receive invalid colors for " << accent_color_id;
-      continue;
-    }
-    if (!option->hidden_) {
-      accent_color_ids.push_back(accent_color_id);
-      min_broadcast_boost_levels.push_back(max(0, option->channel_min_level_));
-      min_megagroup_boost_levels.push_back(max(0, option->group_min_level_));
-    }
-    if (!current_light_colors.empty()) {
-      light_colors[accent_color_id] = std::move(current_light_colors);
-    }
-    if (!current_dark_colors.empty()) {
-      dark_colors[accent_color_id] = std::move(current_dark_colors);
-    }
-  }
-
-  bool is_changed = false;
-  if (accent_colors_.hash_ != peer_colors->hash_) {
-    accent_colors_.hash_ = peer_colors->hash_;
-    is_changed = true;
-  }
-  if (!on_update_accent_colors(std::move(light_colors), std::move(dark_colors), std::move(accent_color_ids),
-                               std::move(min_broadcast_boost_levels), std::move(min_megagroup_boost_levels)) &&
-      is_changed) {
-    save_accent_colors();
-  }
-}
-
-void ThemeManager::reload_profile_accent_colors() {
-  auto request_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::help_PeerColors>> result) {
-        send_closure(actor_id, &ThemeManager::on_get_profile_accent_colors, std::move(result));
-      });
-
-  td_->create_handler<GetPeerProfileColorsQuery>(std::move(request_promise))->send(profile_accent_colors_.hash_);
-}
-
-ThemeManager::ProfileAccentColor ThemeManager::get_profile_accent_color(
-    telegram_api::object_ptr<telegram_api::help_PeerColorSet> &&color_set) const {
-  CHECK(color_set != nullptr);
-  CHECK(color_set->get_id() == telegram_api::help_peerColorProfileSet::ID);
-  auto colors = telegram_api::move_object_as<telegram_api::help_peerColorProfileSet>(color_set);
-  ProfileAccentColor color;
-  color.palette_colors_ = std::move(colors->palette_colors_);
-  color.background_colors_ = std::move(colors->bg_colors_);
-  color.story_colors_ = std::move(colors->story_colors_);
-  return color;
-}
-
-void ThemeManager::on_get_profile_accent_colors(
-    Result<telegram_api::object_ptr<telegram_api::help_PeerColors>> result) {
-  if (result.is_error()) {
-    return;
-  }
-
-  auto peer_colors_ptr = result.move_as_ok();
-  LOG(DEBUG) << "Receive " << to_string(peer_colors_ptr);
-  if (peer_colors_ptr->get_id() == telegram_api::help_peerColorsNotModified::ID) {
-    return;
-  }
-  CHECK(peer_colors_ptr->get_id() == telegram_api::help_peerColors::ID);
-  auto peer_colors = telegram_api::move_object_as<telegram_api::help_peerColors>(peer_colors_ptr);
-  FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> light_colors;
-  FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> dark_colors;
-  vector<AccentColorId> accent_color_ids;
-  vector<int32> min_broadcast_boost_levels;
-  vector<int32> min_megagroup_boost_levels;
-  for (auto &option : peer_colors->colors_) {
-    AccentColorId accent_color_id(option->color_id_);
-    if (option->colors_ == nullptr || option->colors_->get_id() != telegram_api::help_peerColorProfileSet::ID ||
-        option->dark_colors_ == nullptr ||
-        option->dark_colors_->get_id() != telegram_api::help_peerColorProfileSet::ID || !accent_color_id.is_valid() ||
-        td::contains(accent_color_ids, accent_color_id)) {
-      LOG(ERROR) << "Receive " << to_string(option);
-      continue;
-    }
-    auto current_light_color = get_profile_accent_color(std::move(option->colors_));
-    auto current_dark_color = get_profile_accent_color(std::move(option->dark_colors_));
-    if (!current_light_color.is_valid() || !current_dark_color.is_valid()) {
-      LOG(ERROR) << "Receive invalid colors for " << accent_color_id;
-      continue;
-    }
-    if (!option->hidden_) {
-      accent_color_ids.push_back(accent_color_id);
-      min_broadcast_boost_levels.push_back(max(0, option->channel_min_level_));
-      min_megagroup_boost_levels.push_back(max(0, option->group_min_level_));
-    }
-    light_colors[accent_color_id] = std::move(current_light_color);
-    dark_colors[accent_color_id] = std::move(current_dark_color);
-  }
-
-  bool is_changed = false;
-  if (profile_accent_colors_.hash_ != peer_colors->hash_) {
-    profile_accent_colors_.hash_ = peer_colors->hash_;
-    is_changed = true;
-  }
-  if (!on_update_profile_accent_colors(std::move(light_colors), std::move(dark_colors), std::move(accent_color_ids),
-                                       std::move(min_broadcast_boost_levels), std::move(min_megagroup_boost_levels)) &&
-      is_changed) {
-    save_profile_accent_colors();
-  }
-}
-
-void ThemeManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (!td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (!chat_themes_.themes.empty()) {
-    updates.push_back(get_update_chat_themes_object());
-  }
-  if (!accent_colors_.accent_color_ids_.empty()) {
-    updates.push_back(get_update_accent_colors_object());
-  }
-  if (!profile_accent_colors_.accent_color_ids_.empty()) {
-    updates.push_back(get_update_profile_accent_colors_object());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ThemeManager.h b/third-party/td/td/td/telegram/ThemeManager.h
deleted file mode 100644
index 98fd0a6bb7..0000000000
--- a/third-party/td/td/td/telegram/ThemeManager.h
+++ /dev/null
@@ -1,200 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeSettings.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class ThemeManager final : public Actor {
- public:
-  ThemeManager(Td *td, ActorShared<> parent);
-
-  void init();
-
-  void on_update_theme(telegram_api::object_ptr<telegram_api::theme> &&theme, Promise<Unit> &&promise);
-
-  void reload_chat_themes();
-
-  void reload_accent_colors();
-
-  void reload_profile_accent_colors();
-
-  static string get_theme_parameters_json_string(const td_api::object_ptr<td_api::themeParameters> &theme);
-
-  int32 get_accent_color_id_object(AccentColorId accent_color_id,
-                                   AccentColorId fallback_accent_color_id = AccentColorId()) const;
-
-  int32 get_profile_accent_color_id_object(AccentColorId accent_color_id) const;
-
-  struct DialogBoostAvailableCounts {
-    int32 title_color_count_ = 0;
-    int32 accent_color_count_ = 0;
-    int32 profile_accent_color_count_ = 0;
-    int32 chat_theme_count_ = 0;
-  };
-  DialogBoostAvailableCounts get_dialog_boost_available_count(int32 level, bool for_megagroup);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  struct ChatTheme {
-    string emoji;
-    int64 id = 0;
-    ThemeSettings light_theme;
-    ThemeSettings dark_theme;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct ChatThemes {
-    int64 hash = 0;
-    vector<ChatTheme> themes;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct AccentColors {
-    FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> light_colors_;
-    FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> dark_colors_;
-    vector<AccentColorId> accent_color_ids_;
-    vector<int32> min_broadcast_boost_levels_;
-    vector<int32> min_megagroup_boost_levels_;
-    int32 hash_ = 0;
-
-    td_api::object_ptr<td_api::updateAccentColors> get_update_accent_colors_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct ProfileAccentColor {
-    vector<int32> palette_colors_;
-    vector<int32> background_colors_;
-    vector<int32> story_colors_;
-
-    bool is_valid() const;
-
-    td_api::object_ptr<td_api::profileAccentColors> get_profile_accent_colors_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  friend bool operator==(const ProfileAccentColor &lhs, const ProfileAccentColor &rhs);
-
-  friend bool operator!=(const ProfileAccentColor &lhs, const ProfileAccentColor &rhs);
-
-  struct ProfileAccentColors {
-    FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> light_colors_;
-    FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> dark_colors_;
-    vector<AccentColorId> accent_color_ids_;
-    vector<int32> min_broadcast_boost_levels_;
-    vector<int32> min_megagroup_boost_levels_;
-    int32 hash_ = 0;
-
-    td_api::object_ptr<td_api::updateProfileAccentColors> get_update_profile_accent_colors_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  void start_up() final;
-
-  void tear_down() final;
-
-  void load_chat_themes();
-
-  void load_accent_colors();
-
-  void load_profile_accent_colors();
-
-  void on_get_chat_themes(Result<telegram_api::object_ptr<telegram_api::account_Themes>> result);
-
-  bool on_update_accent_colors(FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> light_colors,
-                               FlatHashMap<AccentColorId, vector<int32>, AccentColorIdHash> dark_colors,
-                               vector<AccentColorId> accent_color_ids, vector<int32> min_broadcast_boost_levels,
-                               vector<int32> min_megagroup_boost_levels);
-
-  void on_get_accent_colors(Result<telegram_api::object_ptr<telegram_api::help_PeerColors>> result);
-
-  bool on_update_profile_accent_colors(FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> light_colors,
-                                       FlatHashMap<AccentColorId, ProfileAccentColor, AccentColorIdHash> dark_colors,
-                                       vector<AccentColorId> accent_color_ids, vector<int32> min_broadcast_boost_levels,
-                                       vector<int32> min_megagroup_boost_levels);
-
-  ProfileAccentColor get_profile_accent_color(
-      telegram_api::object_ptr<telegram_api::help_PeerColorSet> &&color_set) const;
-
-  void on_get_profile_accent_colors(Result<telegram_api::object_ptr<telegram_api::help_PeerColors>> result);
-
-  td_api::object_ptr<td_api::chatTheme> get_chat_theme_object(const ChatTheme &theme) const;
-
-  td_api::object_ptr<td_api::updateChatThemes> get_update_chat_themes_object() const;
-
-  static string get_chat_themes_database_key();
-
-  string get_accent_colors_database_key();
-
-  string get_profile_accent_colors_database_key();
-
-  void save_chat_themes();
-
-  void save_accent_colors();
-
-  void save_profile_accent_colors();
-
-  void send_update_chat_themes() const;
-
-  td_api::object_ptr<td_api::updateAccentColors> get_update_accent_colors_object() const;
-
-  td_api::object_ptr<td_api::updateProfileAccentColors> get_update_profile_accent_colors_object() const;
-
-  void send_update_accent_colors() const;
-
-  void send_update_profile_accent_colors() const;
-
-  ChatThemes chat_themes_;
-
-  AccentColors accent_colors_;
-
-  ProfileAccentColors profile_accent_colors_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ThemeSettings.cpp b/third-party/td/td/td/telegram/ThemeSettings.cpp
deleted file mode 100644
index d2d23b53c9..0000000000
--- a/third-party/td/td/td/telegram/ThemeSettings.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ThemeSettings.h"
-
-namespace td {
-
-ThemeSettings::ThemeSettings(Td *td, telegram_api::object_ptr<telegram_api::themeSettings> settings) {
-  if (settings != nullptr && !settings->message_colors_.empty() && settings->message_colors_.size() <= 4) {
-    accent_color_ = settings->accent_color_;
-    bool has_outbox_accent_color = (settings->flags_ & telegram_api::themeSettings::OUTBOX_ACCENT_COLOR_MASK) != 0;
-    message_accent_color_ = (has_outbox_accent_color ? settings->outbox_accent_color_ : accent_color_);
-    background_info_ = BackgroundInfo(td, std::move(settings->wallpaper_), true);
-    base_theme_ = get_base_theme(settings->base_theme_);
-    message_colors_ = std::move(settings->message_colors_);
-    animate_message_colors_ = settings->message_colors_animated_;
-  }
-}
-
-td_api::object_ptr<td_api::themeSettings> ThemeSettings::get_theme_settings_object(Td *td) const {
-  auto fill = [&]() -> td_api::object_ptr<td_api::BackgroundFill> {
-    if (message_colors_.size() >= 3) {
-      return td_api::make_object<td_api::backgroundFillFreeformGradient>(vector<int32>(message_colors_));
-    }
-    CHECK(!message_colors_.empty());
-    if (message_colors_.size() == 1 || message_colors_[0] == message_colors_[1]) {
-      return td_api::make_object<td_api::backgroundFillSolid>(message_colors_[0]);
-    }
-    return td_api::make_object<td_api::backgroundFillGradient>(message_colors_[1], message_colors_[0], 0);
-  }();
-
-  // ignore base_theme_ for now
-  return td_api::make_object<td_api::themeSettings>(accent_color_, background_info_.get_background_object(td),
-                                                    std::move(fill), animate_message_colors_, message_accent_color_);
-}
-
-bool operator==(const ThemeSettings &lhs, const ThemeSettings &rhs) {
-  return lhs.accent_color_ == rhs.accent_color_ && lhs.message_accent_color_ == rhs.message_accent_color_ &&
-         lhs.background_info_ == rhs.background_info_ && lhs.base_theme_ == rhs.base_theme_ &&
-         lhs.message_colors_ == rhs.message_colors_ && lhs.animate_message_colors_ == rhs.animate_message_colors_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ThemeSettings.h b/third-party/td/td/td/telegram/ThemeSettings.h
deleted file mode 100644
index 88c225f37d..0000000000
--- a/third-party/td/td/td/telegram/ThemeSettings.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/BackgroundInfo.h"
-#include "td/telegram/BaseTheme.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Td;
-
-class ThemeSettings {
-  int32 accent_color_ = 0;
-  int32 message_accent_color_ = 0;
-  BackgroundInfo background_info_;
-  BaseTheme base_theme_ = BaseTheme::Classic;
-  vector<int32> message_colors_;
-  bool animate_message_colors_ = false;
-
-  friend bool operator==(const ThemeSettings &lhs, const ThemeSettings &rhs);
-
- public:
-  ThemeSettings() = default;
-
-  ThemeSettings(Td *td, telegram_api::object_ptr<telegram_api::themeSettings> settings);
-
-  td_api::object_ptr<td_api::themeSettings> get_theme_settings_object(Td *td) const;
-
-  bool is_empty() const {
-    return message_colors_.empty();
-  }
-
-  bool are_dark() const {
-    return is_dark_base_theme(base_theme_);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const ThemeSettings &lhs, const ThemeSettings &rhs);
-
-inline bool operator!=(const ThemeSettings &lhs, const ThemeSettings &rhs) {
-  return !(lhs == rhs);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/ThemeSettings.hpp b/third-party/td/td/td/telegram/ThemeSettings.hpp
deleted file mode 100644
index 0fb434695f..0000000000
--- a/third-party/td/td/td/telegram/ThemeSettings.hpp
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ThemeSettings.h"
-
-#include "td/telegram/BackgroundInfo.hpp"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void ThemeSettings::store(StorerT &storer) const {
-  bool has_message_accent_color = message_accent_color_ != accent_color_;
-  bool has_background = background_info_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(animate_message_colors_);
-  STORE_FLAG(has_message_accent_color);
-  STORE_FLAG(has_background);
-  END_STORE_FLAGS();
-  td::store(accent_color_, storer);
-  if (has_message_accent_color) {
-    td::store(message_accent_color_, storer);
-  }
-  if (has_background) {
-    td::store(background_info_, storer);
-  }
-  td::store(base_theme_, storer);
-  td::store(message_colors_, storer);
-}
-
-template <class ParserT>
-void ThemeSettings::parse(ParserT &parser) {
-  bool has_message_accent_color;
-  bool has_background;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(animate_message_colors_);
-  PARSE_FLAG(has_message_accent_color);
-  PARSE_FLAG(has_background);
-  END_PARSE_FLAGS();
-  td::parse(accent_color_, parser);
-  if (has_message_accent_color) {
-    td::parse(message_accent_color_, parser);
-  } else {
-    message_accent_color_ = accent_color_;
-  }
-  if (has_background) {
-    td::parse(background_info_, parser);
-  }
-  td::parse(base_theme_, parser);
-  td::parse(message_colors_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TimeZoneManager.cpp b/third-party/td/td/td/telegram/TimeZoneManager.cpp
deleted file mode 100644
index 1fd2749295..0000000000
--- a/third-party/td/td/td/telegram/TimeZoneManager.cpp
+++ /dev/null
@@ -1,206 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TimeZoneManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class GetTimezonesListQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::help_TimezonesList>> promise_;
-
- public:
-  explicit GetTimezonesListQuery(Promise<telegram_api::object_ptr<telegram_api::help_TimezonesList>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int32 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::help_getTimezonesList(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getTimezonesList>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "GetTimezonesListQuery returned " << status;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-TimeZoneManager::TimeZone::TimeZone(string &&id, string &&name, int32 utc_offset)
-    : id_(std::move(id)), name_(std::move(name)), utc_offset_(utc_offset) {
-}
-
-td_api::object_ptr<td_api::timeZone> TimeZoneManager::TimeZone::get_time_zone_object() const {
-  return td_api::make_object<td_api::timeZone>(id_, name_, utc_offset_);
-}
-
-bool operator==(const TimeZoneManager::TimeZone &lhs, const TimeZoneManager::TimeZone &rhs) {
-  return lhs.id_ == rhs.id_ && lhs.name_ == rhs.name_ && lhs.utc_offset_ == rhs.utc_offset_;
-}
-
-bool operator!=(const TimeZoneManager::TimeZone &lhs, const TimeZoneManager::TimeZone &rhs) {
-  return !(lhs == rhs);
-}
-
-template <class StorerT>
-void TimeZoneManager::TimeZone::store(StorerT &storer) const {
-  BEGIN_STORE_FLAGS();
-  END_STORE_FLAGS();
-  td::store(id_, storer);
-  td::store(name_, storer);
-  td::store(utc_offset_, storer);
-}
-
-template <class ParserT>
-void TimeZoneManager::TimeZone::parse(ParserT &parser) {
-  BEGIN_PARSE_FLAGS();
-  END_PARSE_FLAGS();
-  td::parse(id_, parser);
-  td::parse(name_, parser);
-  td::parse(utc_offset_, parser);
-}
-
-td_api::object_ptr<td_api::timeZones> TimeZoneManager::TimeZoneList::get_time_zones_object() const {
-  return td_api::make_object<td_api::timeZones>(
-      transform(time_zones_, [](const TimeZone &time_zone) { return time_zone.get_time_zone_object(); }));
-}
-
-template <class StorerT>
-void TimeZoneManager::TimeZoneList::store(StorerT &storer) const {
-  td::store(time_zones_, storer);
-  td::store(hash_, storer);
-}
-
-template <class ParserT>
-void TimeZoneManager::TimeZoneList::parse(ParserT &parser) {
-  td::parse(time_zones_, parser);
-  td::parse(hash_, parser);
-  is_loaded_ = true;
-}
-
-TimeZoneManager::TimeZoneManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-TimeZoneManager::~TimeZoneManager() = default;
-
-void TimeZoneManager::tear_down() {
-  parent_.reset();
-}
-
-int32 TimeZoneManager::get_time_zone_offset(const string &time_zone_id) {
-  load_time_zones();
-  for (auto &time_zone : time_zones_.time_zones_) {
-    if (time_zone.id_ == time_zone_id) {
-      return time_zone.utc_offset_;
-    }
-  }
-  return narrow_cast<int32>(G()->get_option_integer("utc_time_offset"));
-}
-
-void TimeZoneManager::get_time_zones(Promise<td_api::object_ptr<td_api::timeZones>> &&promise) {
-  load_time_zones();
-  if (time_zones_.hash_ != 0) {
-    return promise.set_value(time_zones_.get_time_zones_object());
-  }
-  reload_time_zones(std::move(promise));
-}
-
-void TimeZoneManager::reload_time_zones(Promise<td_api::object_ptr<td_api::timeZones>> &&promise) {
-  load_time_zones();
-  get_time_zones_queries_.push_back(std::move(promise));
-  if (get_time_zones_queries_.size() == 1) {
-    auto query_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::help_TimezonesList>> &&r_time_zones) {
-          send_closure(actor_id, &TimeZoneManager::on_get_time_zones, std::move(r_time_zones));
-        });
-    td_->create_handler<GetTimezonesListQuery>(std::move(query_promise))->send(time_zones_.hash_);
-  }
-}
-
-void TimeZoneManager::on_get_time_zones(
-    Result<telegram_api::object_ptr<telegram_api::help_TimezonesList>> &&r_time_zones) {
-  G()->ignore_result_if_closing(r_time_zones);
-  if (r_time_zones.is_error()) {
-    return fail_promises(get_time_zones_queries_, r_time_zones.move_as_error());
-  }
-
-  auto time_zones_ptr = r_time_zones.move_as_ok();
-  switch (time_zones_ptr->get_id()) {
-    case telegram_api::help_timezonesListNotModified::ID:
-      break;
-    case telegram_api::help_timezonesList::ID: {
-      auto zone_list = telegram_api::move_object_as<telegram_api::help_timezonesList>(time_zones_ptr);
-      vector<TimeZone> time_zones;
-      for (auto &time_zone : zone_list->timezones_) {
-        time_zones.emplace_back(std::move(time_zone->id_), std::move(time_zone->name_), time_zone->utc_offset_);
-      }
-      if (time_zones_.time_zones_ != time_zones || time_zones_.hash_ != zone_list->hash_) {
-        time_zones_.time_zones_ = std::move(time_zones);
-        time_zones_.hash_ = zone_list->hash_;
-        save_time_zones();
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  time_zones_.is_loaded_ = true;
-
-  auto promises = std::move(get_time_zones_queries_);
-  reset_to_empty(get_time_zones_queries_);
-  for (auto &promise : promises) {
-    if (promise) {
-      promise.set_value(time_zones_.get_time_zones_object());
-    }
-  }
-}
-
-string TimeZoneManager::get_time_zones_database_key() {
-  return "time_zones";
-}
-
-void TimeZoneManager::load_time_zones() {
-  if (time_zones_.is_loaded_) {
-    return;
-  }
-  time_zones_.is_loaded_ = true;
-
-  auto log_event_string = G()->td_db()->get_binlog_pmc()->get(get_time_zones_database_key());
-  if (log_event_string.empty()) {
-    return;
-  }
-  auto status = log_event_parse(time_zones_, log_event_string);
-  if (status.is_error()) {
-    LOG(ERROR) << "Failed to parse time zones from binlog: " << status;
-    time_zones_ = TimeZoneList();
-  }
-}
-
-void TimeZoneManager::save_time_zones() {
-  G()->td_db()->get_binlog_pmc()->set(get_time_zones_database_key(), log_event_store(time_zones_).as_slice().str());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TimeZoneManager.h b/third-party/td/td/td/telegram/TimeZoneManager.h
deleted file mode 100644
index 72a54db035..0000000000
--- a/third-party/td/td/td/telegram/TimeZoneManager.h
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class TimeZoneManager final : public Actor {
- public:
-  TimeZoneManager(Td *td, ActorShared<> parent);
-  TimeZoneManager(const TimeZoneManager &) = delete;
-  TimeZoneManager &operator=(const TimeZoneManager &) = delete;
-  TimeZoneManager(TimeZoneManager &&) = delete;
-  TimeZoneManager &operator=(TimeZoneManager &&) = delete;
-  ~TimeZoneManager() final;
-
-  int32 get_time_zone_offset(const string &time_zone_id);
-
-  void get_time_zones(Promise<td_api::object_ptr<td_api::timeZones>> &&promise);
-
-  void reload_time_zones(Promise<td_api::object_ptr<td_api::timeZones>> &&promise);
-
- private:
-  void tear_down() final;
-
-  struct TimeZone {
-    string id_;
-    string name_;
-    int32 utc_offset_ = 0;
-
-    TimeZone() = default;
-    TimeZone(string &&id, string &&name, int32 utc_offset);
-
-    td_api::object_ptr<td_api::timeZone> get_time_zone_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct TimeZoneList {
-    vector<TimeZone> time_zones_;
-    int32 hash_ = 0;
-    bool is_loaded_ = false;
-
-    td_api::object_ptr<td_api::timeZones> get_time_zones_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  friend bool operator==(const TimeZone &lhs, const TimeZone &rhs);
-
-  friend bool operator!=(const TimeZone &lhs, const TimeZone &rhs);
-
-  void on_get_time_zones(Result<telegram_api::object_ptr<telegram_api::help_TimezonesList>> &&r_time_zones);
-
-  static string get_time_zones_database_key();
-
-  void load_time_zones();
-
-  void save_time_zones();
-
-  vector<Promise<td_api::object_ptr<td_api::timeZones>>> get_time_zones_queries_;
-
-  TimeZoneList time_zones_;
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TopDialogCategory.cpp b/third-party/td/td/td/telegram/TopDialogCategory.cpp
deleted file mode 100644
index e21a61a981..0000000000
--- a/third-party/td/td/td/telegram/TopDialogCategory.cpp
+++ /dev/null
@@ -1,117 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TopDialogCategory.h"
-
-namespace td {
-
-CSlice get_top_dialog_category_name(TopDialogCategory category) {
-  switch (category) {
-    case TopDialogCategory::Correspondent:
-      return CSlice("correspondent");
-    case TopDialogCategory::BotPM:
-      return CSlice("bot_pm");
-    case TopDialogCategory::BotInline:
-      return CSlice("bot_inline");
-    case TopDialogCategory::Group:
-      return CSlice("group");
-    case TopDialogCategory::Channel:
-      return CSlice("channel");
-    case TopDialogCategory::Call:
-      return CSlice("call");
-    case TopDialogCategory::ForwardUsers:
-      return CSlice("forward_users");
-    case TopDialogCategory::ForwardChats:
-      return CSlice("forward_chats");
-    case TopDialogCategory::BotApp:
-      return CSlice("bot_app");
-    default:
-      UNREACHABLE();
-      return CSlice();
-  }
-}
-
-TopDialogCategory get_top_dialog_category(const td_api::object_ptr<td_api::TopChatCategory> &category) {
-  if (category == nullptr) {
-    return TopDialogCategory::Size;
-  }
-  switch (category->get_id()) {
-    case td_api::topChatCategoryUsers::ID:
-      return TopDialogCategory::Correspondent;
-    case td_api::topChatCategoryBots::ID:
-      return TopDialogCategory::BotPM;
-    case td_api::topChatCategoryInlineBots::ID:
-      return TopDialogCategory::BotInline;
-    case td_api::topChatCategoryGroups::ID:
-      return TopDialogCategory::Group;
-    case td_api::topChatCategoryChannels::ID:
-      return TopDialogCategory::Channel;
-    case td_api::topChatCategoryCalls::ID:
-      return TopDialogCategory::Call;
-    case td_api::topChatCategoryForwardChats::ID:
-      return TopDialogCategory::ForwardUsers;
-    case td_api::topChatCategoryWebAppBots::ID:
-      return TopDialogCategory::BotApp;
-    default:
-      UNREACHABLE();
-      return TopDialogCategory::Size;
-  }
-}
-
-TopDialogCategory get_top_dialog_category(const telegram_api::object_ptr<telegram_api::TopPeerCategory> &category) {
-  CHECK(category != nullptr);
-  switch (category->get_id()) {
-    case telegram_api::topPeerCategoryCorrespondents::ID:
-      return TopDialogCategory::Correspondent;
-    case telegram_api::topPeerCategoryBotsPM::ID:
-      return TopDialogCategory::BotPM;
-    case telegram_api::topPeerCategoryBotsInline::ID:
-      return TopDialogCategory::BotInline;
-    case telegram_api::topPeerCategoryGroups::ID:
-      return TopDialogCategory::Group;
-    case telegram_api::topPeerCategoryChannels::ID:
-      return TopDialogCategory::Channel;
-    case telegram_api::topPeerCategoryPhoneCalls::ID:
-      return TopDialogCategory::Call;
-    case telegram_api::topPeerCategoryForwardUsers::ID:
-      return TopDialogCategory::ForwardUsers;
-    case telegram_api::topPeerCategoryForwardChats::ID:
-      return TopDialogCategory::ForwardChats;
-    case telegram_api::topPeerCategoryBotsApp::ID:
-      return TopDialogCategory::BotApp;
-    default:
-      UNREACHABLE();
-      return TopDialogCategory::Size;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::TopPeerCategory> get_input_top_peer_category(TopDialogCategory category) {
-  switch (category) {
-    case TopDialogCategory::Correspondent:
-      return make_tl_object<telegram_api::topPeerCategoryCorrespondents>();
-    case TopDialogCategory::BotPM:
-      return make_tl_object<telegram_api::topPeerCategoryBotsPM>();
-    case TopDialogCategory::BotInline:
-      return make_tl_object<telegram_api::topPeerCategoryBotsInline>();
-    case TopDialogCategory::Group:
-      return make_tl_object<telegram_api::topPeerCategoryGroups>();
-    case TopDialogCategory::Channel:
-      return make_tl_object<telegram_api::topPeerCategoryChannels>();
-    case TopDialogCategory::Call:
-      return make_tl_object<telegram_api::topPeerCategoryPhoneCalls>();
-    case TopDialogCategory::ForwardUsers:
-      return make_tl_object<telegram_api::topPeerCategoryForwardUsers>();
-    case TopDialogCategory::ForwardChats:
-      return make_tl_object<telegram_api::topPeerCategoryForwardChats>();
-    case TopDialogCategory::BotApp:
-      return make_tl_object<telegram_api::topPeerCategoryBotsApp>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TopDialogCategory.h b/third-party/td/td/td/telegram/TopDialogCategory.h
deleted file mode 100644
index c7cb494d43..0000000000
--- a/third-party/td/td/td/telegram/TopDialogCategory.h
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-enum class TopDialogCategory : int32 {
-  Correspondent,
-  BotPM,
-  BotInline,
-  Group,
-  Channel,
-  Call,
-  ForwardUsers,
-  ForwardChats,
-  BotApp,
-  Size
-};
-
-CSlice get_top_dialog_category_name(TopDialogCategory category);
-
-TopDialogCategory get_top_dialog_category(const td_api::object_ptr<td_api::TopChatCategory> &category);
-
-TopDialogCategory get_top_dialog_category(const telegram_api::object_ptr<telegram_api::TopPeerCategory> &category);
-
-telegram_api::object_ptr<telegram_api::TopPeerCategory> get_input_top_peer_category(TopDialogCategory category);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TopDialogManager.cpp b/third-party/td/td/td/telegram/TopDialogManager.cpp
deleted file mode 100644
index f0d6feb7c8..0000000000
--- a/third-party/td/td/td/telegram/TopDialogManager.cpp
+++ /dev/null
@@ -1,673 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TopDialogManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-#include <algorithm>
-#include <cmath>
-#include <iterator>
-
-namespace td {
-
-class GetTopPeersQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::contacts_TopPeers>> promise_;
-
- public:
-  explicit GetTopPeersQuery(Promise<telegram_api::object_ptr<telegram_api::contacts_TopPeers>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_getTopPeers(
-        0, true, true, true, true, true, true, true, true, true, 0 /*offset*/, 100 /*limit*/, hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_getTopPeers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleTopPeersQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleTopPeersQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool is_enabled) {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_toggleTopPeers(is_enabled)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_toggleTopPeers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResetTopPeerRatingQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-
- public:
-  void send(TopDialogCategory category, DialogId dialog_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(
-        telegram_api::contacts_resetTopPeerRating(get_input_top_peer_category(category), std::move(input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_resetTopPeerRating>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    // ignore the result
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ResetTopPeerRatingQuery")) {
-      LOG(INFO) << "Receive error for ResetTopPeerRatingQuery: " << status;
-    }
-  }
-};
-
-TopDialogManager::TopDialogManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void TopDialogManager::update_is_enabled(bool is_enabled) {
-  if (td_->auth_manager_ == nullptr || !td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (set_is_enabled(is_enabled)) {
-    G()->td_db()->get_binlog_pmc()->set("top_peers_enabled", is_enabled ? "1" : "0");
-    send_toggle_top_peers(is_enabled);
-
-    loop();
-  }
-}
-
-bool TopDialogManager::set_is_enabled(bool is_enabled) {
-  if (is_enabled_ == is_enabled) {
-    return false;
-  }
-
-  LOG(DEBUG) << "Change top chats is_enabled to " << is_enabled;
-  is_enabled_ = is_enabled;
-  try_start();
-  return true;
-}
-
-void TopDialogManager::send_toggle_top_peers(bool is_enabled) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  if (have_toggle_top_peers_query_) {
-    have_pending_toggle_top_peers_query_ = true;
-    pending_toggle_top_peers_query_ = is_enabled;
-    return;
-  }
-
-  LOG(DEBUG) << "Send toggle top peers query to " << is_enabled;
-  have_toggle_top_peers_query_ = true;
-
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), is_enabled](Result<Unit> result) {
-    send_closure(actor_id, &TopDialogManager::on_toggle_top_peers, is_enabled, std::move(result));
-  });
-  td_->create_handler<ToggleTopPeersQuery>(std::move(promise))->send(is_enabled);
-}
-
-void TopDialogManager::on_toggle_top_peers(bool is_enabled, Result<Unit> &&result) {
-  CHECK(have_toggle_top_peers_query_);
-  have_toggle_top_peers_query_ = false;
-
-  if (have_pending_toggle_top_peers_query_) {
-    have_pending_toggle_top_peers_query_ = false;
-    if (pending_toggle_top_peers_query_ != is_enabled) {
-      send_toggle_top_peers(pending_toggle_top_peers_query_);
-      return;
-    }
-  }
-
-  if (result.is_ok()) {
-    // everything is synchronized
-    G()->td_db()->get_binlog_pmc()->erase("top_peers_enabled");
-  } else {
-    // let's resend the query forever
-    send_toggle_top_peers(is_enabled);
-  }
-  loop();
-}
-
-void TopDialogManager::on_dialog_used(TopDialogCategory category, DialogId dialog_id, int32 date) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!is_enabled_) {
-    return;
-  }
-  auto pos = static_cast<size_t>(category);
-  CHECK(pos < by_category_.size());
-  auto &top_dialogs = by_category_[pos];
-
-  top_dialogs.is_dirty = true;
-  auto it = std::find_if(top_dialogs.dialogs.begin(), top_dialogs.dialogs.end(),
-                         [&](auto &top_dialog) { return top_dialog.dialog_id == dialog_id; });
-  if (it == top_dialogs.dialogs.end()) {
-    TopDialog top_dialog;
-    top_dialog.dialog_id = dialog_id;
-    top_dialogs.dialogs.push_back(top_dialog);
-    it = top_dialogs.dialogs.end() - 1;
-  }
-
-  auto delta = rating_add(date, top_dialogs.rating_timestamp);
-  it->rating += delta;
-  while (it != top_dialogs.dialogs.begin()) {
-    auto next = std::prev(it);
-    if (*next < *it) {
-      break;
-    }
-    std::swap(*next, *it);
-    it = next;
-  }
-
-  LOG(INFO) << "Update " << get_top_dialog_category_name(category) << " rating of " << dialog_id << " by " << delta;
-
-  if (!first_unsync_change_) {
-    first_unsync_change_ = Timestamp::now_cached();
-  }
-  loop();
-}
-
-void TopDialogManager::remove_dialog(TopDialogCategory category, DialogId dialog_id, Promise<Unit> &&promise) {
-  if (category == TopDialogCategory::Size) {
-    return promise.set_error(Status::Error(400, "Top chat category must be non-empty"));
-  }
-  TRY_STATUS_PROMISE(promise,
-                     td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Read, "remove_dialog"));
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!is_enabled_) {
-    return promise.set_value(Unit());
-  }
-
-  if (category == TopDialogCategory::ForwardUsers && dialog_id.get_type() != DialogType::User) {
-    category = TopDialogCategory::ForwardChats;
-  }
-
-  auto pos = static_cast<size_t>(category);
-  CHECK(pos < by_category_.size());
-  auto &top_dialogs = by_category_[pos];
-
-  td_->create_handler<ResetTopPeerRatingQuery>()->send(category, dialog_id);
-
-  auto it = std::find_if(top_dialogs.dialogs.begin(), top_dialogs.dialogs.end(),
-                         [&](auto &top_dialog) { return top_dialog.dialog_id == dialog_id; });
-  if (it == top_dialogs.dialogs.end()) {
-    return promise.set_value(Unit());
-  }
-
-  top_dialogs.is_dirty = true;
-  top_dialogs.dialogs.erase(it);
-  if (!first_unsync_change_) {
-    first_unsync_change_ = Timestamp::now_cached();
-  }
-  loop();
-  promise.set_value(Unit());
-}
-
-void TopDialogManager::get_top_dialogs(TopDialogCategory category, int32 limit,
-                                       Promise<td_api::object_ptr<td_api::chats>> &&promise) {
-  if (category == TopDialogCategory::Size) {
-    return promise.set_error(Status::Error(400, "Top chat category must be non-empty"));
-  }
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Limit must be positive"));
-  }
-  if (!is_enabled_) {
-    return promise.set_error(Status::Error(400, "Top chat computation is disabled"));
-  }
-
-  GetTopDialogsQuery query;
-  query.category = category;
-  query.limit = static_cast<size_t>(limit);
-  query.promise = std::move(promise);
-  pending_get_top_dialogs_.push_back(std::move(query));
-  loop();
-}
-
-int TopDialogManager::is_top_dialog(TopDialogCategory category, size_t limit, DialogId dialog_id) const {
-  CHECK(category != TopDialogCategory::Size);
-  CHECK(category != TopDialogCategory::ForwardUsers);
-  CHECK(limit > 0);
-  CHECK(!td_->auth_manager_->is_bot());
-  if (!is_enabled_) {
-    return 0;
-  }
-
-  vector<DialogId> dialog_ids;
-  auto pos = static_cast<size_t>(category);
-  CHECK(pos < by_category_.size());
-  const auto &dialogs = by_category_[pos].dialogs;
-  for (size_t i = 0; i < limit && i < dialogs.size(); i++) {
-    if (dialogs[i].dialog_id == dialog_id) {
-      return 1;
-    }
-  }
-  return is_synchronized_ ? 0 : -1;
-}
-
-void TopDialogManager::update_rating_e_decay() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  rating_e_decay_ = narrow_cast<int32>(G()->get_option_integer("rating_e_decay", rating_e_decay_));
-}
-
-template <class StorerT>
-void store(const TopDialogManager::TopDialog &top_dialog, StorerT &storer) {
-  using ::td::store;
-  store(top_dialog.dialog_id, storer);
-  store(top_dialog.rating, storer);
-}
-
-template <class ParserT>
-void parse(TopDialogManager::TopDialog &top_dialog, ParserT &parser) {
-  using ::td::parse;
-  parse(top_dialog.dialog_id, parser);
-  parse(top_dialog.rating, parser);
-}
-
-template <class StorerT>
-void store(const TopDialogManager::TopDialogs &top_dialogs, StorerT &storer) {
-  using ::td::store;
-  store(top_dialogs.rating_timestamp, storer);
-  store(top_dialogs.dialogs, storer);
-}
-
-template <class ParserT>
-void parse(TopDialogManager::TopDialogs &top_dialogs, ParserT &parser) {
-  using ::td::parse;
-  parse(top_dialogs.rating_timestamp, parser);
-  parse(top_dialogs.dialogs, parser);
-}
-
-double TopDialogManager::rating_add(double now, double rating_timestamp) const {
-  return std::exp((now - rating_timestamp) / rating_e_decay_);
-}
-
-double TopDialogManager::current_rating_add(double server_time, double rating_timestamp) const {
-  return rating_add(server_time, rating_timestamp);
-}
-
-void TopDialogManager::normalize_rating() {
-  auto server_time = G()->server_time();
-  for (auto &top_dialogs : by_category_) {
-    auto div_by = current_rating_add(server_time, top_dialogs.rating_timestamp);
-    top_dialogs.rating_timestamp = server_time;
-    for (auto &dialog : top_dialogs.dialogs) {
-      dialog.rating /= div_by;
-    }
-    top_dialogs.is_dirty = true;
-  }
-  db_sync_state_ = SyncState::None;
-}
-
-void TopDialogManager::do_get_top_dialogs(GetTopDialogsQuery &&query) {
-  vector<DialogId> dialog_ids;
-  if (query.category != TopDialogCategory::ForwardUsers) {
-    auto pos = static_cast<size_t>(query.category);
-    CHECK(pos < by_category_.size());
-    dialog_ids = transform(by_category_[pos].dialogs, [](const auto &x) { return x.dialog_id; });
-  } else {
-    // merge ForwardUsers and ForwardChats
-    auto &users = by_category_[static_cast<size_t>(TopDialogCategory::ForwardUsers)];
-    auto &chats = by_category_[static_cast<size_t>(TopDialogCategory::ForwardChats)];
-    size_t users_pos = 0;
-    size_t chats_pos = 0;
-    while (users_pos < users.dialogs.size() || chats_pos < chats.dialogs.size()) {
-      if (chats_pos == chats.dialogs.size() ||
-          (users_pos < users.dialogs.size() && users.dialogs[users_pos] < chats.dialogs[chats_pos])) {
-        dialog_ids.push_back(users.dialogs[users_pos++].dialog_id);
-      } else {
-        dialog_ids.push_back(chats.dialogs[chats_pos++].dialog_id);
-      }
-    }
-  }
-
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), query = std::move(query)](Result<vector<DialogId>> r_dialog_ids) mutable {
-        if (r_dialog_ids.is_error()) {
-          return query.promise.set_error(r_dialog_ids.move_as_error());
-        }
-        send_closure(actor_id, &TopDialogManager::on_load_dialogs, std::move(query), r_dialog_ids.move_as_ok());
-      });
-  send_closure(td_->messages_manager_actor_, &MessagesManager::load_dialogs, std::move(dialog_ids), std::move(promise));
-}
-
-void TopDialogManager::on_load_dialogs(GetTopDialogsQuery &&query, vector<DialogId> &&dialog_ids) {
-  auto limit = std::min({query.limit, MAX_TOP_DIALOGS_LIMIT, dialog_ids.size()});
-  vector<DialogId> result;
-  result.reserve(limit);
-  for (auto dialog_id : dialog_ids) {
-    if (dialog_id.get_type() == DialogType::User) {
-      auto user_id = dialog_id.get_user_id();
-      if (td_->user_manager_->is_user_deleted(user_id)) {
-        LOG(INFO) << "Skip deleted " << user_id;
-        continue;
-      }
-      if (td_->user_manager_->get_my_id() == user_id) {
-        LOG(INFO) << "Skip self " << user_id;
-        continue;
-      }
-      if (query.category == TopDialogCategory::BotInline || query.category == TopDialogCategory::BotPM) {
-        auto r_bot_info = td_->user_manager_->get_bot_data(user_id);
-        if (r_bot_info.is_error()) {
-          LOG(INFO) << "Skip not a bot " << user_id;
-          continue;
-        }
-        if (query.category == TopDialogCategory::BotInline &&
-            (r_bot_info.ok().username.empty() || !r_bot_info.ok().is_inline)) {
-          LOG(INFO) << "Skip not inline bot " << user_id;
-          continue;
-        }
-      }
-    }
-
-    result.push_back(dialog_id);
-    if (result.size() == limit) {
-      break;
-    }
-  }
-
-  query.promise.set_value(
-      td_->dialog_manager_->get_chats_object(-1, std::move(result), "TopDialogManager::on_load_dialogs"));
-}
-
-void TopDialogManager::do_get_top_peers() {
-  std::vector<uint64> peer_ids;
-  for (auto &category : by_category_) {
-    for (auto &top_dialog : category.dialogs) {
-      auto dialog_id = top_dialog.dialog_id;
-      switch (dialog_id.get_type()) {
-        case DialogType::User:
-          peer_ids.push_back(dialog_id.get_user_id().get());
-          break;
-        case DialogType::Chat:
-          peer_ids.push_back(dialog_id.get_chat_id().get());
-          break;
-        case DialogType::Channel:
-          peer_ids.push_back(dialog_id.get_channel_id().get());
-          break;
-        default:
-          break;
-      }
-    }
-  }
-  auto promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this)](Result<telegram_api::object_ptr<telegram_api::contacts_TopPeers>> result) {
-        send_closure(actor_id, &TopDialogManager::on_get_top_peers, std::move(result));
-      });
-  td_->create_handler<GetTopPeersQuery>(std::move(promise))->send(get_vector_hash(peer_ids));
-}
-
-void TopDialogManager::on_get_top_peers(Result<telegram_api::object_ptr<telegram_api::contacts_TopPeers>> result) {
-  normalize_rating();  // once a day too
-
-  if (result.is_error()) {
-    last_server_sync_ = Timestamp::in(SERVER_SYNC_RESEND_DELAY - SERVER_SYNC_DELAY);
-    loop();
-    return;
-  }
-
-  last_server_sync_ = Timestamp::now();
-  server_sync_state_ = SyncState::Ok;
-  is_synchronized_ = true;
-
-  auto top_peers_parent = result.move_as_ok();
-  LOG(DEBUG) << "Receive contacts_getTopPeers result: " << to_string(top_peers_parent);
-  switch (top_peers_parent->get_id()) {
-    case telegram_api::contacts_topPeersNotModified::ID:
-      // nothing to do
-      break;
-    case telegram_api::contacts_topPeersDisabled::ID:
-      G()->set_option_boolean("disable_top_chats", true);
-      set_is_enabled(false);  // apply immediately
-      break;
-    case telegram_api::contacts_topPeers::ID: {
-      G()->set_option_empty("disable_top_chats");
-      set_is_enabled(true);  // apply immediately
-      auto top_peers = move_tl_object_as<telegram_api::contacts_topPeers>(std::move(top_peers_parent));
-
-      td_->user_manager_->on_get_users(std::move(top_peers->users_), "on get top chats");
-      td_->chat_manager_->on_get_chats(std::move(top_peers->chats_), "on get top chats");
-      for (auto &category : top_peers->categories_) {
-        auto dialog_category = get_top_dialog_category(category->category_);
-        auto pos = static_cast<size_t>(dialog_category);
-        CHECK(pos < by_category_.size());
-        auto &top_dialogs = by_category_[pos];
-
-        top_dialogs.is_dirty = true;
-        top_dialogs.dialogs.clear();
-        for (auto &top_peer : category->peers_) {
-          TopDialog top_dialog;
-          top_dialog.dialog_id = DialogId(top_peer->peer_);
-          top_dialog.rating = top_peer->rating_;
-          top_dialogs.dialogs.push_back(std::move(top_dialog));
-        }
-      }
-      db_sync_state_ = SyncState::None;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  G()->td_db()->get_binlog_pmc()->set("top_dialogs_ts", to_string(static_cast<uint32>(Clocks::system())));
-  loop();
-}
-
-void TopDialogManager::do_save_top_dialogs() {
-  LOG(INFO) << "Save top chats";
-  for (size_t top_dialog_category_i = 0; top_dialog_category_i < by_category_.size(); top_dialog_category_i++) {
-    auto &top_dialogs = by_category_[top_dialog_category_i];
-    if (!top_dialogs.is_dirty) {
-      continue;
-    }
-    top_dialogs.is_dirty = false;
-
-    if (G()->use_chat_info_database()) {
-      auto top_dialog_category = TopDialogCategory(top_dialog_category_i);
-      auto key = PSTRING() << "top_dialogs#" << get_top_dialog_category_name(top_dialog_category);
-      G()->td_db()->get_binlog_pmc()->set(key, log_event_store(top_dialogs).as_slice().str());
-    }
-  }
-  db_sync_state_ = SyncState::Ok;
-  first_unsync_change_ = Timestamp();
-}
-
-void TopDialogManager::start_up() {
-  init();
-}
-
-void TopDialogManager::tear_down() {
-  parent_.reset();
-}
-
-void TopDialogManager::init() {
-  if (td_->auth_manager_ == nullptr || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-
-  is_enabled_ = !G()->get_option_boolean("disable_top_chats");
-  update_rating_e_decay();
-
-  string need_update_top_peers = G()->td_db()->get_binlog_pmc()->get("top_peers_enabled");
-  if (!need_update_top_peers.empty()) {
-    send_toggle_top_peers(need_update_top_peers[0] == '1');
-  }
-
-  try_start();
-  loop();
-}
-
-void TopDialogManager::try_start() {
-  was_first_sync_ = false;
-  first_unsync_change_ = Timestamp();
-  server_sync_state_ = SyncState::None;
-  last_server_sync_ = Timestamp();
-
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  LOG(DEBUG) << "Init is enabled: " << is_enabled_;
-
-  auto di_top_dialogs_ts = G()->td_db()->get_binlog_pmc()->get("top_dialogs_ts");
-  if (!di_top_dialogs_ts.empty()) {
-    last_server_sync_ = Timestamp::in(to_integer<uint32>(di_top_dialogs_ts) - Clocks::system());
-    if (last_server_sync_.is_in_past()) {
-      server_sync_state_ = SyncState::Ok;
-    }
-    is_synchronized_ = G()->use_chat_info_database();
-  }
-
-  if (is_enabled_ && G()->use_chat_info_database()) {
-    for (size_t top_dialog_category_i = 0; top_dialog_category_i < by_category_.size(); top_dialog_category_i++) {
-      auto top_dialog_category = TopDialogCategory(top_dialog_category_i);
-      auto key = PSTRING() << "top_dialogs#" << get_top_dialog_category_name(top_dialog_category);
-      auto value = G()->td_db()->get_binlog_pmc()->get(key);
-
-      auto &top_dialogs = by_category_[top_dialog_category_i];
-      top_dialogs.is_dirty = false;
-      if (value.empty()) {
-        continue;
-      }
-      log_event_parse(top_dialogs, value).ensure();
-    }
-    normalize_rating();
-  } else {
-    G()->td_db()->get_binlog_pmc()->erase_by_prefix("top_dialogs#");
-    for (auto &top_dialogs : by_category_) {
-      top_dialogs = {};
-    }
-  }
-  db_sync_state_ = SyncState::Ok;
-
-  send_closure(G()->state_manager(), &StateManager::wait_first_sync,
-               create_event_promise(self_closure(this, &TopDialogManager::on_first_sync)));
-}
-
-void TopDialogManager::on_first_sync() {
-  was_first_sync_ = true;
-  loop();
-}
-
-void TopDialogManager::loop() {
-  if (G()->close_flag() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (!pending_get_top_dialogs_.empty() && (is_synchronized_ || !is_enabled_)) {
-    for (auto &query : pending_get_top_dialogs_) {
-      do_get_top_dialogs(std::move(query));
-    }
-    pending_get_top_dialogs_.clear();
-  }
-
-  // server sync
-  Timestamp server_sync_timeout;
-  if (server_sync_state_ == SyncState::Ok) {
-    server_sync_timeout = pending_get_top_dialogs_.empty() ? Timestamp::at(last_server_sync_.at() + SERVER_SYNC_DELAY)
-                                                           : Timestamp::now_cached();
-    if (server_sync_timeout.is_in_past()) {
-      server_sync_state_ = SyncState::None;
-    }
-  }
-
-  Timestamp wakeup_timeout;
-  if (server_sync_state_ == SyncState::Ok) {
-    wakeup_timeout.relax(server_sync_timeout);
-  } else if (server_sync_state_ == SyncState::None && (was_first_sync_ || !pending_get_top_dialogs_.empty())) {
-    server_sync_state_ = SyncState::Pending;
-    do_get_top_peers();
-  }
-
-  if (is_enabled_) {
-    // database sync
-    Timestamp db_sync_timeout;
-    if (db_sync_state_ == SyncState::Ok) {
-      if (first_unsync_change_) {
-        db_sync_timeout = Timestamp::at(first_unsync_change_.at() + DB_SYNC_DELAY);
-        if (db_sync_timeout.is_in_past()) {
-          db_sync_state_ = SyncState::None;
-        }
-      }
-    }
-
-    if (db_sync_state_ == SyncState::Ok) {
-      wakeup_timeout.relax(db_sync_timeout);
-    } else if (db_sync_state_ == SyncState::None) {
-      if (server_sync_state_ == SyncState::Ok) {
-        do_save_top_dialogs();
-      }
-    }
-  }
-
-  if (wakeup_timeout) {
-    LOG(INFO) << "Wakeup in: " << wakeup_timeout.in();
-    set_timeout_at(wakeup_timeout.at());
-  } else {
-    LOG(INFO) << "Wakeup: never";
-    cancel_timeout();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TopDialogManager.h b/third-party/td/td/td/telegram/TopDialogManager.h
deleted file mode 100644
index 9065e3245c..0000000000
--- a/third-party/td/td/td/telegram/TopDialogManager.h
+++ /dev/null
@@ -1,131 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TopDialogCategory.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <array>
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class TopDialogManager final : public Actor {
- public:
-  TopDialogManager(Td *td, ActorShared<> parent);
-
-  void init();
-
-  void on_dialog_used(TopDialogCategory category, DialogId dialog_id, int32 date);
-
-  void remove_dialog(TopDialogCategory category, DialogId dialog_id, Promise<Unit> &&promise);
-
-  void get_top_dialogs(TopDialogCategory category, int32 limit, Promise<td_api::object_ptr<td_api::chats>> &&promise);
-
-  int is_top_dialog(TopDialogCategory category, size_t limit, DialogId dialog_id) const;
-
-  void update_rating_e_decay();
-
-  void update_is_enabled(bool is_enabled);
-
- private:
-  static constexpr size_t MAX_TOP_DIALOGS_LIMIT = 30;
-  static constexpr int32 SERVER_SYNC_DELAY = 86400;      // seconds
-  static constexpr int32 SERVER_SYNC_RESEND_DELAY = 60;  // seconds
-  static constexpr int32 DB_SYNC_DELAY = 5;              // seconds
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  bool is_enabled_ = true;
-  bool is_synchronized_ = false;
-  int32 rating_e_decay_ = 241920;
-
-  bool have_toggle_top_peers_query_ = false;
-  bool have_pending_toggle_top_peers_query_ = false;
-  bool pending_toggle_top_peers_query_ = false;
-  bool was_first_sync_{false};
-  enum class SyncState : int32 { None, Pending, Ok };
-  SyncState db_sync_state_ = SyncState::None;
-  Timestamp first_unsync_change_;
-  SyncState server_sync_state_ = SyncState::None;
-  Timestamp last_server_sync_;
-
-  struct GetTopDialogsQuery {
-    TopDialogCategory category;
-    size_t limit;
-    Promise<td_api::object_ptr<td_api::chats>> promise;
-  };
-  vector<GetTopDialogsQuery> pending_get_top_dialogs_;
-
-  struct TopDialog {
-    DialogId dialog_id;
-    double rating = 0;
-    bool operator<(const TopDialog &other) const {
-      return std::make_pair(-rating, dialog_id.get()) < std::make_pair(-other.rating, other.dialog_id.get());
-    }
-  };
-
-  struct TopDialogs {
-    bool is_dirty = false;
-    double rating_timestamp = 0;
-    vector<TopDialog> dialogs;
-  };
-  template <class StorerT>
-  friend void store(const TopDialog &top_dialog, StorerT &storer);
-  template <class ParserT>
-  friend void parse(TopDialog &top_dialog, ParserT &parser);
-  template <class StorerT>
-  friend void store(const TopDialogs &top_dialogs, StorerT &storer);
-  template <class ParserT>
-  friend void parse(TopDialogs &top_dialogs, ParserT &parser);
-
-  std::array<TopDialogs, static_cast<size_t>(TopDialogCategory::Size)> by_category_;
-
-  double rating_add(double now, double rating_timestamp) const;
-  double current_rating_add(double server_time, double rating_timestamp) const;
-  void normalize_rating();
-
-  bool set_is_enabled(bool is_enabled);
-
-  void send_toggle_top_peers(bool is_enabled);
-
-  void on_toggle_top_peers(bool is_enabled, Result<Unit> &&result);
-
-  void do_get_top_dialogs(GetTopDialogsQuery &&query);
-
-  void on_load_dialogs(GetTopDialogsQuery &&query, vector<DialogId> &&dialog_ids);
-
-  void do_get_top_peers();
-
-  void do_save_top_dialogs();
-
-  void on_first_sync();
-
-  void on_get_top_peers(Result<telegram_api::object_ptr<telegram_api::contacts_TopPeers>> result);
-
-  void try_start();
-
-  void start_up() final;
-
-  void loop() final;
-
-  void tear_down() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TranscriptionInfo.cpp b/third-party/td/td/td/telegram/TranscriptionInfo.cpp
deleted file mode 100644
index 36b835ac9e..0000000000
--- a/third-party/td/td/td/telegram/TranscriptionInfo.cpp
+++ /dev/null
@@ -1,202 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TranscriptionInfo.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-class TranscribeAudioQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-  std::function<void(Result<telegram_api::object_ptr<telegram_api::messages_transcribedAudio>>)> handler_;
-
- public:
-  void send(MessageFullId message_full_id,
-            std::function<void(Result<telegram_api::object_ptr<telegram_api::messages_transcribedAudio>>)> &&handler) {
-    dialog_id_ = message_full_id.get_dialog_id();
-    handler_ = std::move(handler);
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    auto query = G()->net_query_creator().create(telegram_api::messages_transcribeAudio(
-        std::move(input_peer), message_full_id.get_message_id().get_server_message_id().get()));
-    query->total_timeout_limit_ = 8;
-    send_query(std::move(query));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_transcribeAudio>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for TranscribeAudioQuery: " << to_string(result);
-    handler_(std::move(result));
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "TranscribeAudioQuery");
-    handler_(std::move(status));
-  }
-};
-
-class RateTranscribedAudioQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  DialogId dialog_id_;
-
- public:
-  explicit RateTranscribedAudioQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(MessageFullId message_full_id, int64 transcription_id, bool is_good) {
-    dialog_id_ = message_full_id.get_dialog_id();
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
-    if (input_peer == nullptr) {
-      return on_error(Status::Error(400, "Can't access the chat"));
-    }
-    send_query(G()->net_query_creator().create(telegram_api::messages_rateTranscribedAudio(
-        std::move(input_peer), message_full_id.get_message_id().get_server_message_id().get(), transcription_id,
-        is_good)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_rateTranscribedAudio>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(INFO) << "Receive result for RateTranscribedAudioQuery: " << result;
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "RateTranscribedAudioQuery");
-    promise_.set_error(std::move(status));
-  }
-};
-
-bool TranscriptionInfo::recognize_speech(
-    Td *td, MessageFullId message_full_id, Promise<Unit> &&promise,
-    std::function<void(Result<telegram_api::object_ptr<telegram_api::messages_transcribedAudio>>)> &&handler) {
-  if (is_transcribed_) {
-    promise.set_value(Unit());
-    return false;
-  }
-  speech_recognition_queries_.push_back(std::move(promise));
-  if (speech_recognition_queries_.size() == 1) {
-    last_transcription_error_ = Status::OK();
-    td->create_handler<TranscribeAudioQuery>()->send(message_full_id, std::move(handler));
-    return true;
-  }
-  return false;
-}
-
-vector<Promise<Unit>> TranscriptionInfo::on_final_transcription(string &&text, int64 transcription_id) {
-  CHECK(!is_transcribed_);
-  CHECK(transcription_id_ == 0 || transcription_id_ == transcription_id);
-  CHECK(transcription_id != 0);
-  transcription_id_ = transcription_id;
-  is_transcribed_ = true;
-  text_ = std::move(text);
-  last_transcription_error_ = Status::OK();
-
-  CHECK(!speech_recognition_queries_.empty());
-  auto promises = std::move(speech_recognition_queries_);
-  speech_recognition_queries_.clear();
-
-  return promises;
-}
-
-bool TranscriptionInfo::on_partial_transcription(string &&text, int64 transcription_id) {
-  CHECK(!is_transcribed_);
-  CHECK(transcription_id_ == 0 || transcription_id_ == transcription_id);
-  CHECK(transcription_id != 0);
-  bool is_changed = text_ != text;
-  transcription_id_ = transcription_id;
-  text_ = std::move(text);
-  last_transcription_error_ = Status::OK();
-
-  return is_changed;
-}
-
-vector<Promise<Unit>> TranscriptionInfo::on_failed_transcription(Status &&error) {
-  CHECK(!is_transcribed_);
-  transcription_id_ = 0;
-  text_.clear();
-  last_transcription_error_ = std::move(error);
-
-  CHECK(!speech_recognition_queries_.empty());
-  auto promises = std::move(speech_recognition_queries_);
-  speech_recognition_queries_.clear();
-  return promises;
-}
-
-void TranscriptionInfo::rate_speech_recognition(Td *td, MessageFullId message_full_id, bool is_good,
-                                                Promise<Unit> &&promise) const {
-  if (!is_transcribed_) {
-    return promise.set_value(Unit());
-  }
-  CHECK(transcription_id_ != 0);
-  td->create_handler<RateTranscribedAudioQuery>(std::move(promise))->send(message_full_id, transcription_id_, is_good);
-}
-
-unique_ptr<TranscriptionInfo> TranscriptionInfo::copy_if_transcribed(const unique_ptr<TranscriptionInfo> &info) {
-  if (info == nullptr || !info->is_transcribed_) {
-    return nullptr;
-  }
-  auto result = make_unique<TranscriptionInfo>();
-  result->is_transcribed_ = true;
-  result->transcription_id_ = info->transcription_id_;
-  result->text_ = info->text_;
-  return result;
-}
-
-bool TranscriptionInfo::update_from(unique_ptr<TranscriptionInfo> &old_info, unique_ptr<TranscriptionInfo> &&new_info) {
-  if (new_info == nullptr || !new_info->is_transcribed_) {
-    return false;
-  }
-  CHECK(new_info->transcription_id_ != 0);
-  CHECK(new_info->last_transcription_error_.is_ok());
-  CHECK(new_info->speech_recognition_queries_.empty());
-  if (old_info == nullptr) {
-    old_info = std::move(new_info);
-    return true;
-  }
-  if (old_info->transcription_id_ != 0 || !old_info->speech_recognition_queries_.empty()) {
-    return false;
-  }
-  CHECK(!old_info->is_transcribed_);
-  old_info = std::move(new_info);
-  return true;
-}
-
-td_api::object_ptr<td_api::SpeechRecognitionResult> TranscriptionInfo::get_speech_recognition_result_object() const {
-  if (is_transcribed_) {
-    return td_api::make_object<td_api::speechRecognitionResultText>(text_);
-  }
-  if (!speech_recognition_queries_.empty()) {
-    return td_api::make_object<td_api::speechRecognitionResultPending>(text_);
-  }
-  if (last_transcription_error_.is_error()) {
-    return td_api::make_object<td_api::speechRecognitionResultError>(td_api::make_object<td_api::error>(
-        last_transcription_error_.code(), last_transcription_error_.message().str()));
-  }
-  return nullptr;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TranscriptionInfo.h b/third-party/td/td/td/telegram/TranscriptionInfo.h
deleted file mode 100644
index 06a95673c7..0000000000
--- a/third-party/td/td/td/telegram/TranscriptionInfo.h
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <functional>
-
-namespace td {
-
-class Td;
-
-class TranscriptionInfo {
-  bool is_transcribed_ = false;
-  int64 transcription_id_ = 0;
-  string text_;
-
-  // temporary state
-  Status last_transcription_error_;
-  vector<Promise<Unit>> speech_recognition_queries_;
-
- public:
-  bool is_transcribed() const {
-    return is_transcribed_;
-  }
-
-  bool recognize_speech(
-      Td *td, MessageFullId message_full_id, Promise<Unit> &&promise,
-      std::function<void(Result<telegram_api::object_ptr<telegram_api::messages_transcribedAudio>>)> &&handler);
-
-  vector<Promise<Unit>> on_final_transcription(string &&text, int64 transcription_id);
-
-  bool on_partial_transcription(string &&text, int64 transcription_id);
-
-  vector<Promise<Unit>> on_failed_transcription(Status &&error);
-
-  void rate_speech_recognition(Td *td, MessageFullId message_full_id, bool is_good, Promise<Unit> &&promise) const;
-
-  static unique_ptr<TranscriptionInfo> copy_if_transcribed(const unique_ptr<TranscriptionInfo> &info);
-
-  static bool update_from(unique_ptr<TranscriptionInfo> &old_info, unique_ptr<TranscriptionInfo> &&new_info);
-
-  td_api::object_ptr<td_api::SpeechRecognitionResult> get_speech_recognition_result_object() const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TranscriptionInfo.hpp b/third-party/td/td/td/telegram/TranscriptionInfo.hpp
deleted file mode 100644
index 8b1ce0ae15..0000000000
--- a/third-party/td/td/td/telegram/TranscriptionInfo.hpp
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/TranscriptionInfo.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void TranscriptionInfo::store(StorerT &storer) const {
-  CHECK(is_transcribed());
-  td::store(transcription_id_, storer);
-  td::store(text_, storer);
-}
-
-template <class ParserT>
-void TranscriptionInfo::parse(ParserT &parser) {
-  is_transcribed_ = true;
-  td::parse(transcription_id_, parser);
-  td::parse(text_, parser);
-  CHECK(transcription_id_ != 0);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TranscriptionManager.cpp b/third-party/td/td/td/telegram/TranscriptionManager.cpp
deleted file mode 100644
index 66e9fb7f4f..0000000000
--- a/third-party/td/td/td/telegram/TranscriptionManager.cpp
+++ /dev/null
@@ -1,444 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TranscriptionManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/VideoNotesManager.h"
-#include "td/telegram/VoiceNotesManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-void TranscriptionManager::TrialParameters::update_left_tries() {
-  if (next_reset_date_ <= G()->unix_time()) {
-    next_reset_date_ = 0;
-    left_tries_ = weekly_number_;
-  } else if (left_tries_ > weekly_number_) {
-    left_tries_ = weekly_number_;
-  }
-}
-
-template <class StorerT>
-void TranscriptionManager::TrialParameters::store(StorerT &storer) const {
-  bool has_weekly_number = weekly_number_ != 0;
-  bool has_duration_max = duration_max_ != 0;
-  bool has_left_tries = left_tries_ != 0;
-  bool has_next_reset_date = next_reset_date_ != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_weekly_number);
-  STORE_FLAG(has_duration_max);
-  STORE_FLAG(has_left_tries);
-  STORE_FLAG(has_next_reset_date);
-  END_STORE_FLAGS();
-  if (has_weekly_number) {
-    td::store(weekly_number_, storer);
-  }
-  if (has_duration_max) {
-    td::store(duration_max_, storer);
-  }
-  if (has_left_tries) {
-    td::store(left_tries_, storer);
-  }
-  if (has_next_reset_date) {
-    td::store(next_reset_date_, storer);
-  }
-}
-
-template <class ParserT>
-void TranscriptionManager::TrialParameters::parse(ParserT &parser) {
-  bool has_weekly_number;
-  bool has_duration_max;
-  bool has_left_tries;
-  bool has_next_reset_date;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_weekly_number);
-  PARSE_FLAG(has_duration_max);
-  PARSE_FLAG(has_left_tries);
-  PARSE_FLAG(has_next_reset_date);
-  END_PARSE_FLAGS();
-  if (has_weekly_number) {
-    td::parse(weekly_number_, parser);
-  }
-  if (has_duration_max) {
-    td::parse(duration_max_, parser);
-  }
-  if (has_left_tries) {
-    td::parse(left_tries_, parser);
-  }
-  if (has_next_reset_date) {
-    td::parse(next_reset_date_, parser);
-  }
-}
-
-bool operator==(const TranscriptionManager::TrialParameters &lhs, const TranscriptionManager::TrialParameters &rhs) {
-  return lhs.weekly_number_ == rhs.weekly_number_ && lhs.duration_max_ == rhs.duration_max_ &&
-         lhs.left_tries_ == rhs.left_tries_ && lhs.next_reset_date_ == rhs.next_reset_date_;
-}
-
-TranscriptionManager::TranscriptionManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  load_trial_parameters();
-
-  pending_audio_transcription_timeout_.set_callback(on_pending_audio_transcription_timeout_callback);
-  pending_audio_transcription_timeout_.set_callback_data(static_cast<void *>(td_));
-}
-
-TranscriptionManager::~TranscriptionManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), voice_messages_, message_file_ids_);
-}
-
-void TranscriptionManager::tear_down() {
-  parent_.reset();
-}
-
-void TranscriptionManager::on_pending_audio_transcription_timeout_callback(void *td, int64 transcription_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(td != nullptr);
-  if (!static_cast<Td *>(td)->auth_manager_->is_authorized()) {
-    return;
-  }
-
-  auto transcription_manager = static_cast<Td *>(td)->transcription_manager_.get();
-  send_closure_later(transcription_manager->actor_id(transcription_manager),
-                     &TranscriptionManager::on_pending_audio_transcription_failed, transcription_id,
-                     Status::Error(500, "Timeout expired"));
-}
-
-string TranscriptionManager::get_trial_parameters_database_key() {
-  return "speech_recognition_trial";
-}
-
-void TranscriptionManager::load_trial_parameters() {
-  if (!td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto log_event_string = G()->td_db()->get_binlog_pmc()->get(get_trial_parameters_database_key());
-  if (!log_event_string.empty()) {
-    auto status = log_event_parse(trial_parameters_, log_event_string);
-    if (status.is_ok()) {
-      trial_parameters_.update_left_tries();
-    } else {
-      LOG(ERROR) << "Failed to parse speech recognition trial parameters from binlog: " << status;
-      trial_parameters_ = TrialParameters();
-      save_trial_parameters();
-    }
-  }
-  send_update_speech_recognition_trial();
-  set_speech_recognition_trial_timeout();
-}
-
-void TranscriptionManager::save_trial_parameters() {
-  G()->td_db()->get_binlog_pmc()->set(get_trial_parameters_database_key(),
-                                      log_event_store(trial_parameters_).as_slice().str());
-}
-
-void TranscriptionManager::on_update_trial_parameters(int32 weekly_number, int32 duration_max, int32 cooldown_until) {
-  if (!td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  TrialParameters new_trial_parameters;
-  new_trial_parameters.weekly_number_ = max(0, weekly_number);
-  new_trial_parameters.duration_max_ = max(0, duration_max);
-  new_trial_parameters.next_reset_date_ = cooldown_until > 0 ? cooldown_until : trial_parameters_.next_reset_date_;
-  new_trial_parameters.left_tries_ = trial_parameters_.left_tries_;
-  set_trial_parameters(new_trial_parameters);
-}
-
-void TranscriptionManager::set_trial_parameters(TrialParameters new_trial_parameters) {
-  new_trial_parameters.update_left_tries();
-  if (new_trial_parameters == trial_parameters_) {
-    return;
-  }
-
-  trial_parameters_ = std::move(new_trial_parameters);
-  send_update_speech_recognition_trial();
-  set_speech_recognition_trial_timeout();
-  save_trial_parameters();
-}
-
-void TranscriptionManager::set_speech_recognition_trial_timeout() {
-  if (trial_parameters_.next_reset_date_ == 0) {
-    trial_parameters_timeout_.cancel_timeout();
-  } else {
-    trial_parameters_timeout_.set_callback(std::move(trial_parameters_timeout_static));
-    trial_parameters_timeout_.set_callback_data(static_cast<void *>(td_));
-    trial_parameters_timeout_.set_timeout_in(trial_parameters_.next_reset_date_ - G()->unix_time() + 1);
-  }
-}
-
-void TranscriptionManager::trial_parameters_timeout_static(void *td) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(td != nullptr);
-  static_cast<Td *>(td)->transcription_manager_->on_trial_parameters_timeout();
-}
-
-void TranscriptionManager::on_trial_parameters_timeout() {
-  if (!td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  CHECK(!td_->auth_manager_->is_bot());
-  set_trial_parameters(trial_parameters_);
-}
-
-void TranscriptionManager::send_update_speech_recognition_trial() const {
-  send_closure(G()->td(), &Td::send_update, get_update_speech_recognition_trial_object());
-}
-
-td_api::object_ptr<td_api::updateSpeechRecognitionTrial>
-TranscriptionManager::get_update_speech_recognition_trial_object() const {
-  CHECK(td_->auth_manager_->is_authorized());
-  CHECK(!td_->auth_manager_->is_bot());
-  return trial_parameters_.get_update_speech_recognition_trial_object();
-}
-
-td_api::object_ptr<td_api::updateSpeechRecognitionTrial>
-TranscriptionManager::TrialParameters::get_update_speech_recognition_trial_object() const {
-  return td_api::make_object<td_api::updateSpeechRecognitionTrial>(duration_max_, weekly_number_, left_tries_,
-                                                                   next_reset_date_);
-}
-
-void TranscriptionManager::register_voice(FileId file_id, MessageContentType content_type,
-                                          MessageFullId message_full_id, const char *source) {
-  if (td_->auth_manager_->is_bot() || message_full_id.get_message_id().is_scheduled() ||
-      !message_full_id.get_message_id().is_server() ||
-      message_full_id.get_dialog_id().get_type() == DialogType::SecretChat) {
-    return;
-  }
-  LOG(INFO) << "Register voice " << file_id << " from " << message_full_id << " from " << source;
-  CHECK(file_id.is_valid());
-  bool is_inserted = voice_messages_[file_id].emplace(message_full_id).second;
-  LOG_CHECK(is_inserted) << source << ' ' << file_id << ' ' << message_full_id;
-  is_inserted = message_file_ids_.emplace(message_full_id, FileInfo(content_type, file_id)).second;
-  CHECK(is_inserted);
-}
-
-void TranscriptionManager::unregister_voice(FileId file_id, MessageContentType content_type,
-                                            MessageFullId message_full_id, const char *source) {
-  if (td_->auth_manager_->is_bot() || message_full_id.get_message_id().is_scheduled() ||
-      !message_full_id.get_message_id().is_server() ||
-      message_full_id.get_dialog_id().get_type() == DialogType::SecretChat) {
-    return;
-  }
-  LOG(INFO) << "Unregister voice " << file_id << " from " << message_full_id << " from " << source;
-  CHECK(file_id.is_valid());
-  auto &message_full_ids = voice_messages_[file_id];
-  auto is_deleted = message_full_ids.erase(message_full_id) > 0;
-  LOG_CHECK(is_deleted) << source << ' ' << file_id << ' ' << message_full_id;
-  if (message_full_ids.empty()) {
-    voice_messages_.erase(file_id);
-  }
-  is_deleted = message_file_ids_.erase(message_full_id) > 0;
-  CHECK(is_deleted);
-}
-
-TranscriptionInfo *TranscriptionManager::get_transcription_info(const FileInfo &file_info, bool allow_creation) {
-  switch (file_info.first) {
-    case MessageContentType::VideoNote:
-      return td_->video_notes_manager_->get_video_note_transcription_info(file_info.second, allow_creation);
-    case MessageContentType::VoiceNote:
-      return td_->voice_notes_manager_->get_voice_note_transcription_info(file_info.second, allow_creation);
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-void TranscriptionManager::recognize_speech(MessageFullId message_full_id, Promise<Unit> &&promise) {
-  if (!td_->messages_manager_->have_message_force(message_full_id, "recognize_speech")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  auto it = message_file_ids_.find(message_full_id);
-  if (it == message_file_ids_.end()) {
-    return promise.set_error(Status::Error(400, "Message can't be transcribed"));
-  }
-
-  auto *transcription_info = get_transcription_info(it->second, true);
-  auto handler = [actor_id = actor_id(this), file_info = it->second](
-                     Result<telegram_api::object_ptr<telegram_api::messages_transcribedAudio>> r_audio) {
-    send_closure(actor_id, &TranscriptionManager::on_transcribed_audio, file_info, std::move(r_audio));
-  };
-  if (transcription_info->recognize_speech(td_, message_full_id, std::move(promise), std::move(handler))) {
-    on_transcription_updated(it->second.second);
-  }
-}
-
-void TranscriptionManager::on_transcribed_audio(
-    FileInfo file_info, Result<telegram_api::object_ptr<telegram_api::messages_transcribedAudio>> r_audio) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  if (r_audio.is_error()) {
-    auto retry_after = Global::get_retry_after(r_audio.error());
-    on_transcribed_audio_update(file_info, true, r_audio.move_as_error());
-    if (retry_after > 0 && trial_parameters_.left_tries_ > 0) {
-      TrialParameters new_trial_parameters = trial_parameters_;
-      new_trial_parameters.next_reset_date_ = G()->unix_time() + retry_after;
-      new_trial_parameters.left_tries_ = 0;
-      set_trial_parameters(new_trial_parameters);
-    }
-    return;
-  }
-  auto audio = r_audio.move_as_ok();
-  if (audio->transcription_id_ == 0) {
-    return on_transcribed_audio_update(file_info, true, Status::Error(500, "Receive no transcription identifier"));
-  }
-  auto update = telegram_api::make_object<telegram_api::updateTranscribedAudio>();
-  update->text_ = std::move(audio->text_);
-  update->transcription_id_ = audio->transcription_id_;
-  update->pending_ = audio->pending_;
-  on_transcribed_audio_update(file_info, true, std::move(update));
-
-  if ((audio->flags_ & telegram_api::messages_transcribedAudio::TRIAL_REMAINS_NUM_MASK) != 0) {
-    TrialParameters new_trial_parameters = trial_parameters_;
-    new_trial_parameters.next_reset_date_ = max(0, audio->trial_remains_until_date_);
-    new_trial_parameters.left_tries_ = audio->trial_remains_num_;
-    set_trial_parameters(new_trial_parameters);
-  }
-}
-
-void TranscriptionManager::on_transcribed_audio_update(
-    FileInfo file_info, bool is_initial,
-    Result<telegram_api::object_ptr<telegram_api::updateTranscribedAudio>> r_update) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-
-  auto *transcription_info = get_transcription_info(file_info, false);
-  CHECK(transcription_info != nullptr);
-  if (r_update.is_error()) {
-    auto promises = transcription_info->on_failed_transcription(r_update.move_as_error());
-    on_transcription_updated(file_info.second);
-    set_promises(promises);
-    return;
-  }
-  auto update = r_update.move_as_ok();
-  auto transcription_id = update->transcription_id_;
-  if (!update->pending_) {
-    auto promises = transcription_info->on_final_transcription(std::move(update->text_), transcription_id);
-    on_transcription_completed(file_info.second);
-    set_promises(promises);
-  } else {
-    auto is_changed = transcription_info->on_partial_transcription(std::move(update->text_), transcription_id);
-    if (is_changed) {
-      on_transcription_updated(file_info.second);
-    }
-
-    if (is_initial) {
-      subscribe_to_transcribed_audio_updates(
-          transcription_id, [actor_id = actor_id(this), file_info](
-                                Result<telegram_api::object_ptr<telegram_api::updateTranscribedAudio>> r_update) {
-            send_closure(actor_id, &TranscriptionManager::on_transcribed_audio_update, file_info, false,
-                         std::move(r_update));
-          });
-    }
-  }
-}
-
-void TranscriptionManager::on_transcription_updated(FileId file_id) {
-  auto it = voice_messages_.find(file_id);
-  if (it != voice_messages_.end()) {
-    for (const auto &message_full_id : it->second) {
-      td_->messages_manager_->on_external_update_message_content(message_full_id, "on_transcription_updated");
-    }
-  }
-}
-
-void TranscriptionManager::on_transcription_completed(FileId file_id) {
-  auto it = voice_messages_.find(file_id);
-  if (it != voice_messages_.end()) {
-    for (const auto &message_full_id : it->second) {
-      td_->messages_manager_->on_update_message_content(message_full_id);
-    }
-  }
-}
-
-void TranscriptionManager::rate_speech_recognition(MessageFullId message_full_id, bool is_good,
-                                                   Promise<Unit> &&promise) {
-  if (!td_->messages_manager_->have_message_force(message_full_id, "rate_speech_recognition")) {
-    return promise.set_error(Status::Error(400, "Message not found"));
-  }
-
-  auto it = message_file_ids_.find(message_full_id);
-  if (it == message_file_ids_.end()) {
-    return promise.set_error(Status::Error(400, "Message can't be transcribed"));
-  }
-
-  const auto *transcription_info = get_transcription_info(it->second, false);
-  if (transcription_info == nullptr) {
-    return promise.set_value(Unit());
-  }
-  transcription_info->rate_speech_recognition(td_, message_full_id, is_good, std::move(promise));
-}
-
-void TranscriptionManager::subscribe_to_transcribed_audio_updates(int64 transcription_id,
-                                                                  TranscribedAudioHandler on_update) {
-  CHECK(transcription_id != 0);
-  if (pending_audio_transcriptions_.count(transcription_id) != 0) {
-    on_pending_audio_transcription_failed(transcription_id,
-                                          Status::Error(500, "Receive duplicate speech recognition identifier"));
-  }
-  bool is_inserted = pending_audio_transcriptions_.emplace(transcription_id, std::move(on_update)).second;
-  CHECK(is_inserted);
-  pending_audio_transcription_timeout_.set_timeout_in(transcription_id, AUDIO_TRANSCRIPTION_TIMEOUT);
-}
-
-void TranscriptionManager::on_update_transcribed_audio(
-    telegram_api::object_ptr<telegram_api::updateTranscribedAudio> &&update) {
-  auto it = pending_audio_transcriptions_.find(update->transcription_id_);
-  if (it == pending_audio_transcriptions_.end()) {
-    return;
-  }
-  // flags_, peer_ and msg_id_ must not be used
-  if (!update->pending_) {
-    auto on_update = std::move(it->second);
-    pending_audio_transcriptions_.erase(it);
-    pending_audio_transcription_timeout_.cancel_timeout(update->transcription_id_);
-    on_update(std::move(update));
-  } else {
-    it->second(std::move(update));
-  }
-}
-
-void TranscriptionManager::on_pending_audio_transcription_failed(int64 transcription_id, Status &&error) {
-  if (G()->close_flag()) {
-    return;
-  }
-  auto it = pending_audio_transcriptions_.find(transcription_id);
-  if (it == pending_audio_transcriptions_.end()) {
-    return;
-  }
-  auto on_update = std::move(it->second);
-  pending_audio_transcriptions_.erase(it);
-  pending_audio_transcription_timeout_.cancel_timeout(transcription_id);
-
-  on_update(std::move(error));
-}
-
-void TranscriptionManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  if (!td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  updates.push_back(get_update_speech_recognition_trial_object());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TranscriptionManager.h b/third-party/td/td/td/telegram/TranscriptionManager.h
deleted file mode 100644
index fd53fb5d3a..0000000000
--- a/third-party/td/td/td/telegram/TranscriptionManager.h
+++ /dev/null
@@ -1,135 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/MessageContentType.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TranscriptionInfo.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <functional>
-#include <utility>
-
-namespace td {
-
-class Td;
-
-class TranscriptionManager final : public Actor {
- public:
-  TranscriptionManager(Td *td, ActorShared<> parent);
-  TranscriptionManager(const TranscriptionManager &) = delete;
-  TranscriptionManager &operator=(const TranscriptionManager &) = delete;
-  TranscriptionManager(TranscriptionManager &&) = delete;
-  TranscriptionManager &operator=(TranscriptionManager &&) = delete;
-  ~TranscriptionManager() final;
-
-  void on_update_trial_parameters(int32 weekly_number, int32 duration_max, int32 cooldown_until);
-
-  void register_voice(FileId file_id, MessageContentType content_type, MessageFullId message_full_id,
-                      const char *source);
-
-  void unregister_voice(FileId file_id, MessageContentType content_type, MessageFullId message_full_id,
-                        const char *source);
-
-  void recognize_speech(MessageFullId message_full_id, Promise<Unit> &&promise);
-
-  void on_transcription_completed(FileId file_id);
-
-  void rate_speech_recognition(MessageFullId message_full_id, bool is_good, Promise<Unit> &&promise);
-
-  void on_update_transcribed_audio(telegram_api::object_ptr<telegram_api::updateTranscribedAudio> &&update);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  static constexpr int32 AUDIO_TRANSCRIPTION_TIMEOUT = 60;
-
-  struct TrialParameters {
-    int32 weekly_number_ = 0;
-    int32 duration_max_ = 0;
-    int32 left_tries_ = 0;
-    int32 next_reset_date_ = 0;
-
-    void update_left_tries();
-
-    td_api::object_ptr<td_api::updateSpeechRecognitionTrial> get_update_speech_recognition_trial_object() const;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  friend bool operator==(const TrialParameters &lhs, const TrialParameters &rhs);
-
-  void tear_down() final;
-
-  static void on_pending_audio_transcription_timeout_callback(void *td, int64 transcription_id);
-
-  static string get_trial_parameters_database_key();
-
-  void load_trial_parameters();
-
-  void set_trial_parameters(TrialParameters new_trial_parameters);
-
-  void set_speech_recognition_trial_timeout();
-
-  static void trial_parameters_timeout_static(void *td);
-
-  void on_trial_parameters_timeout();
-
-  void save_trial_parameters();
-
-  void send_update_speech_recognition_trial() const;
-
-  td_api::object_ptr<td_api::updateSpeechRecognitionTrial> get_update_speech_recognition_trial_object() const;
-
-  using FileInfo = std::pair<MessageContentType, FileId>;
-
-  TranscriptionInfo *get_transcription_info(const FileInfo &file_info, bool allow_creation);
-
-  void on_transcribed_audio(FileInfo file_info,
-                            Result<telegram_api::object_ptr<telegram_api::messages_transcribedAudio>> r_audio);
-
-  using TranscribedAudioHandler =
-      std::function<void(Result<telegram_api::object_ptr<telegram_api::updateTranscribedAudio>>)>;
-  void subscribe_to_transcribed_audio_updates(int64 transcription_id, TranscribedAudioHandler on_update);
-
-  void on_transcribed_audio_update(FileInfo file_info, bool is_initial,
-                                   Result<telegram_api::object_ptr<telegram_api::updateTranscribedAudio>> r_update);
-
-  void on_transcription_updated(FileId file_id);
-
-  void on_pending_audio_transcription_failed(int64 transcription_id, Status &&error);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  TrialParameters trial_parameters_;
-  Timeout trial_parameters_timeout_;
-
-  FlatHashMap<int64, TranscribedAudioHandler> pending_audio_transcriptions_;
-  MultiTimeout pending_audio_transcription_timeout_{"PendingAudioTranscriptionTimeout"};
-
-  FlatHashMap<FileId, FlatHashSet<MessageFullId, MessageFullIdHash>, FileIdHash> voice_messages_;
-  FlatHashMap<MessageFullId, FileInfo, MessageFullIdHash> message_file_ids_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TranslationManager.cpp b/third-party/td/td/td/telegram/TranslationManager.cpp
deleted file mode 100644
index 7df29fabb8..0000000000
--- a/third-party/td/td/td/telegram/TranslationManager.cpp
+++ /dev/null
@@ -1,136 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/TranslationManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class TranslateTextQuery final : public Td::ResultHandler {
-  Promise<vector<telegram_api::object_ptr<telegram_api::textWithEntities>>> promise_;
-
- public:
-  explicit TranslateTextQuery(Promise<vector<telegram_api::object_ptr<telegram_api::textWithEntities>>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(vector<FormattedText> &&texts, const string &to_language_code) {
-    int flags = telegram_api::messages_translateText::TEXT_MASK;
-    auto input_texts = transform(std::move(texts), [user_manager = td_->user_manager_.get()](FormattedText &&text) {
-      return get_input_text_with_entities(user_manager, std::move(text), "TranslateTextQuery");
-    });
-    send_query(G()->net_query_creator().create(telegram_api::messages_translateText(
-        flags, nullptr, vector<int32>{}, std::move(input_texts), to_language_code)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_translateText>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for TranslateTextQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr->result_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "INPUT_TEXT_EMPTY") {
-      vector<telegram_api::object_ptr<telegram_api::textWithEntities>> result;
-      result.push_back(telegram_api::make_object<telegram_api::textWithEntities>(string(), Auto()));
-      return promise_.set_value(std::move(result));
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-TranslationManager::TranslationManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void TranslationManager::tear_down() {
-  parent_.reset();
-}
-
-void TranslationManager::translate_text(td_api::object_ptr<td_api::formattedText> &&text,
-                                        const string &to_language_code,
-                                        Promise<td_api::object_ptr<td_api::formattedText>> &&promise) {
-  if (text == nullptr) {
-    return promise.set_error(Status::Error(400, "Text must be non-empty"));
-  }
-  bool skip_bot_commands = true;
-  int32 max_media_timestamp = -1;
-  for (const auto &entity : text->entities_) {
-    if (entity == nullptr || entity->type_ == nullptr) {
-      continue;
-    }
-
-    switch (entity->type_->get_id()) {
-      case td_api::textEntityTypeBotCommand::ID:
-        skip_bot_commands = false;
-        break;
-      case td_api::textEntityTypeMediaTimestamp::ID:
-        max_media_timestamp =
-            td::max(max_media_timestamp,
-                    static_cast<const td_api::textEntityTypeMediaTimestamp *>(entity->type_.get())->media_timestamp_);
-        break;
-      default:
-        // nothing to do
-        break;
-    }
-  }
-
-  TRY_RESULT_PROMISE(promise, entities, get_message_entities(td_->user_manager_.get(), std::move(text->entities_)));
-  TRY_STATUS_PROMISE(promise, fix_formatted_text(text->text_, entities, true, true, true, true, true));
-
-  translate_text(FormattedText{std::move(text->text_), std::move(entities)}, skip_bot_commands, max_media_timestamp,
-                 to_language_code, std::move(promise));
-}
-
-void TranslationManager::translate_text(FormattedText text, bool skip_bot_commands, int32 max_media_timestamp,
-                                        const string &to_language_code,
-                                        Promise<td_api::object_ptr<td_api::formattedText>> &&promise) {
-  vector<FormattedText> texts;
-  texts.push_back(std::move(text));
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), skip_bot_commands, max_media_timestamp, promise = std::move(promise)](
-          Result<vector<telegram_api::object_ptr<telegram_api::textWithEntities>>> result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &TranslationManager::on_get_translated_texts, result.move_as_ok(), skip_bot_commands,
-                     max_media_timestamp, std::move(promise));
-      });
-
-  td_->create_handler<TranslateTextQuery>(std::move(query_promise))->send(std::move(texts), to_language_code);
-}
-
-void TranslationManager::on_get_translated_texts(vector<telegram_api::object_ptr<telegram_api::textWithEntities>> texts,
-                                                 bool skip_bot_commands, int32 max_media_timestamp,
-                                                 Promise<td_api::object_ptr<td_api::formattedText>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (texts.size() != 1u) {
-    if (texts.empty()) {
-      return promise.set_error(Status::Error(500, "Translation failed"));
-    }
-    return promise.set_error(Status::Error(500, "Receive invalid number of results"));
-  }
-  auto formatted_text = get_formatted_text(td_->user_manager_.get(), std::move(texts[0]), max_media_timestamp == -1,
-                                           true, "on_get_translated_texts");
-  promise.set_value(
-      get_formatted_text_object(td_->user_manager_.get(), formatted_text, skip_bot_commands, max_media_timestamp));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/TranslationManager.h b/third-party/td/td/td/telegram/TranslationManager.h
deleted file mode 100644
index 22ee519dc1..0000000000
--- a/third-party/td/td/td/telegram/TranslationManager.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class Td;
-
-class TranslationManager final : public Actor {
- public:
-  TranslationManager(Td *td, ActorShared<> parent);
-
-  void translate_text(td_api::object_ptr<td_api::formattedText> &&text, const string &to_language_code,
-                      Promise<td_api::object_ptr<td_api::formattedText>> &&promise);
-
-  void translate_text(FormattedText text, bool skip_bot_commands, int32 max_media_timestamp,
-                      const string &to_language_code, Promise<td_api::object_ptr<td_api::formattedText>> &&promise);
-
- private:
-  void tear_down() final;
-
-  void on_get_translated_texts(vector<telegram_api::object_ptr<telegram_api::textWithEntities>> texts,
-                               bool skip_bot_commands, int32 max_media_timestamp,
-                               Promise<td_api::object_ptr<td_api::formattedText>> &&promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UniqueId.h b/third-party/td/td/td/telegram/UniqueId.h
deleted file mode 100644
index 5ac72813be..0000000000
--- a/third-party/td/td/td/telegram/UniqueId.h
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <atomic>
-
-namespace td {
-
-class UniqueId {
- public:
-  enum Type : uint8 { Default, DcAuth, GetConfig, BindKey, TempFile };
-  static uint64 next() {
-    return next(Default, 0);
-  }
-  static uint64 next(Type type) {
-    return next(type, 0);
-  }
-  static uint64 next(Type type, uint8 key) {
-    // TODO: this is VERY ineffective
-    static std::atomic<uint64> current_id{1};
-    return ((current_id.fetch_add(1, std::memory_order_relaxed)) << 16) | (static_cast<uint64>(type) << 8) | key;
-  }
-
-  static uint8 extract_key(uint64 id) {
-    return static_cast<uint8>(id);
-  }
-  static Type extract_type(uint64 id) {
-    return static_cast<Type>(static_cast<uint8>(id >> 8));
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UpdatesManager.cpp b/third-party/td/td/td/telegram/UpdatesManager.cpp
deleted file mode 100644
index 03e98646ae..0000000000
--- a/third-party/td/td/td/telegram/UpdatesManager.cpp
+++ /dev/null
@@ -1,4669 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/UpdatesManager.h"
-
-#include "td/telegram/AccountManager.h"
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/AutosaveManager.h"
-#include "td/telegram/BoostManager.h"
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/BusinessConnectionManager.h"
-#include "td/telegram/CallbackQueriesManager.h"
-#include "td/telegram/CallManager.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/DialogAction.h"
-#include "td/telegram/DialogActionManager.h"
-#include "td/telegram/DialogFilterManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogInviteLink.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/DownloadManager.h"
-#include "td/telegram/EmojiStatus.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/ForumTopicManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/InlineQueriesManager.h"
-#include "td/telegram/LanguagePackManager.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageReaction.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/MessageTtl.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/net/DcOptions.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/NotificationSettingsManager.h"
-#include "td/telegram/NotificationSettingsScope.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/OrderInfo.h"
-#include "td/telegram/PaidReactionType.h"
-#include "td/telegram/PollId.h"
-#include "td/telegram/PollManager.h"
-#include "td/telegram/PrivacyManager.h"
-#include "td/telegram/PublicDialogType.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/QuickReplyShortcutId.h"
-#include "td/telegram/ReactionListType.h"
-#include "td/telegram/ReactionManager.h"
-#include "td/telegram/ReactionType.h"
-#include "td/telegram/SavedMessagesManager.h"
-#include "td/telegram/ScheduledServerMessageId.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/SecretChatsManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/SpecialStickerSetType.h"
-#include "td/telegram/StarAmount.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/StatisticsManager.h"
-#include "td/telegram/StickerListType.h"
-#include "td/telegram/StickerSetId.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickerType.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/telegram_api.hpp"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/TimeZoneManager.h"
-#include "td/telegram/TranscriptionManager.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/Usernames.h"
-#include "td/telegram/WebAppManager.h"
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/actor/MultiPromise.h"
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-
-#include <limits>
-
-namespace td {
-
-int VERBOSITY_NAME(get_difference) = VERBOSITY_NAME(INFO);
-
-class GetUpdatesStateQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::updates_state>> promise_;
-
- public:
-  explicit GetUpdatesStateQuery(Promise<tl_object_ptr<telegram_api::updates_state>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::updates_getState()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::updates_getState>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class PingServerQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::updates_state>> promise_;
-
- public:
-  explicit PingServerQuery(Promise<tl_object_ptr<telegram_api::updates_state>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::updates_getState()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::updates_getState>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class InitSessionQuery final : public Td::ResultHandler {
- public:
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::help_getCdnConfig()));
-  }
-
-  void on_result(BufferSlice) final {
-  }
-
-  void on_error(Status) final {
-  }
-};
-
-class GetDifferenceQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::updates_Difference>> promise_;
-
- public:
-  explicit GetDifferenceQuery(Promise<tl_object_ptr<telegram_api::updates_Difference>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int32 pts, int32 date, int32 qts) {
-    send_query(G()->net_query_creator().create(telegram_api::updates_getDifference(0, pts, 0, 0, date, qts, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    VLOG(get_difference) << "Receive getDifference result of size " << packet.size();
-    auto result_ptr = fetch_result<telegram_api::updates_getDifference>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ConfirmPtsQtsQuery final : public Td::ResultHandler {
- public:
-  void send(int32 pts, int32 qts) {
-    int32 flags =
-        telegram_api::updates_getDifference::PTS_LIMIT_MASK | telegram_api::updates_getDifference::QTS_LIMIT_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::updates_getDifference(flags, pts, 1, 0, std::numeric_limits<int32>::max(), qts, 1)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::updates_getDifference>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Failed to confirm PTS/QTS: " << status;
-    }
-  }
-};
-
-class GetPtsUpdateQuery final : public Td::ResultHandler {
-  Promise<tl_object_ptr<telegram_api::updates_Difference>> promise_;
-
- public:
-  explicit GetPtsUpdateQuery(Promise<tl_object_ptr<telegram_api::updates_Difference>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(int32 pts) {
-    int32 flags =
-        telegram_api::updates_getDifference::PTS_LIMIT_MASK | telegram_api::updates_getDifference::QTS_LIMIT_MASK;
-    send_query(G()->net_query_creator().create(
-        telegram_api::updates_getDifference(flags, pts, 1, 0, std::numeric_limits<int32>::max(), 0, 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::updates_getDifference>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-UpdatesManager::UpdatesManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  last_pts_save_time_ = last_qts_save_time_ = Time::now() - 2 * MAX_PTS_SAVE_DELAY;
-
-  if (!td_->auth_manager_->is_authorized() || !td_->auth_manager_->is_bot()) {
-    skipped_postponed_updates_after_start_ = 0;
-  }
-}
-
-void UpdatesManager::tear_down() {
-  parent_.reset();
-
-  LOG(DEBUG) << "Have " << being_processed_updates_ << " unprocessed updates to apply";
-}
-
-void UpdatesManager::start_up() {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  class StateCallback final : public StateManager::Callback {
-   public:
-    explicit StateCallback(ActorId<UpdatesManager> parent) : parent_(std::move(parent)) {
-    }
-    bool on_online(bool is_online) final {
-      if (is_online) {
-        send_closure(parent_, &UpdatesManager::try_reload_data);
-      }
-      return parent_.is_alive();
-    }
-
-   private:
-    ActorId<UpdatesManager> parent_;
-  };
-  send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-
-  next_data_reload_time_ = Time::now() - 1;
-}
-
-void UpdatesManager::hangup_shared() {
-  ref_cnt_--;
-  if (ref_cnt_ == 0) {
-    stop();
-  }
-}
-
-void UpdatesManager::hangup() {
-  pending_pts_updates_.clear();
-  postponed_pts_updates_.clear();
-  postponed_updates_.clear();
-  pending_seq_updates_.clear();
-  pending_qts_updates_.clear();
-
-  hangup_shared();
-}
-
-ActorShared<UpdatesManager> UpdatesManager::create_reference() {
-  ref_cnt_++;
-  return actor_shared(this, 1);
-}
-
-void UpdatesManager::check_pts_gap(void *td) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(td != nullptr);
-  static_cast<Td *>(td)->updates_manager_.get()->repair_pts_gap();
-}
-
-void UpdatesManager::repair_pts_gap() {
-  if (!td_->auth_manager_->is_authorized() || running_get_difference_ || !postponed_pts_updates_.empty()) {
-    return;
-  }
-  auto pts = get_pts() + 1;
-  if (pending_pts_updates_.empty()) {
-    return;
-  }
-  auto it = pending_pts_updates_.begin();
-  if (it->pts != pts + it->pts_count) {
-    return;
-  }
-  if (last_fetched_pts_ == pts) {
-    VLOG(get_difference) << "Don't fetch again update with PTS = " << pts;
-    return;
-  }
-  last_fetched_pts_ = pts;
-
-  VLOG(get_difference) << "Fetch update with PTS = " << pts;
-  pts_short_gap_++;
-  auto promise =
-      PromiseCreator::lambda([pts](Result<telegram_api::object_ptr<telegram_api::updates_Difference>> result) {
-        if (result.is_ok()) {
-          send_closure(G()->updates_manager(), &UpdatesManager::on_get_pts_update, pts, result.move_as_ok());
-        }
-      });
-  td_->create_handler<GetPtsUpdateQuery>(std::move(promise))->send(pts - 1);
-}
-
-void UpdatesManager::fill_pts_gap(void *td) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(td != nullptr);
-  auto updates_manager = static_cast<Td *>(td)->updates_manager_.get();
-  if (updates_manager->expect_pts_gap_) {
-    updates_manager->expect_pts_gap_ = false;
-    return fill_gap(td, string());
-  }
-
-  auto min_pts = std::numeric_limits<int32>::max();
-  auto min_pts_count = 0;
-  const telegram_api::Update *first_update = nullptr;
-  auto max_pts = 0;
-  if (!updates_manager->pending_pts_updates_.empty()) {
-    auto &min_update = *updates_manager->pending_pts_updates_.begin();
-    if (min_update.pts < min_pts) {
-      min_pts = min_update.pts;
-      min_pts_count = min_update.pts_count;
-      first_update = min_update.update.get();
-    }
-    max_pts = max(max_pts, updates_manager->pending_pts_updates_.rbegin()->pts);
-  }
-  if (!updates_manager->postponed_pts_updates_.empty()) {
-    auto &min_update = *updates_manager->postponed_pts_updates_.begin();
-    if (min_update.pts < min_pts) {
-      min_pts = min_update.pts;
-      min_pts_count = min_update.pts_count;
-      first_update = min_update.update.get();
-    }
-    max_pts = max(max_pts, updates_manager->postponed_pts_updates_.rbegin()->pts);
-  }
-  updates_manager->pts_gap_++;
-  fill_gap(td, PSTRING() << "PTS from " << updates_manager->get_pts() << " to " << min_pts << "(-" << min_pts_count
-                         << ")-" << max_pts << ' '
-                         << (first_update == nullptr ? string() : oneline(to_string(*first_update))));
-}
-
-void UpdatesManager::fill_seq_gap(void *td) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(td != nullptr);
-  auto updates_manager = static_cast<Td *>(td)->updates_manager_.get();
-  auto min_seq = std::numeric_limits<int32>::max();
-  auto max_seq = 0;
-  if (!updates_manager->pending_seq_updates_.empty()) {
-    min_seq = updates_manager->pending_seq_updates_.begin()->seq_begin;
-    max_seq = updates_manager->pending_seq_updates_.rbegin()->seq_end;
-  }
-  fill_gap(td, PSTRING() << "seq from " << updates_manager->seq_ << " to " << min_seq << '-' << max_seq);
-}
-
-void UpdatesManager::fill_qts_gap(void *td) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(td != nullptr);
-  auto updates_manager = static_cast<Td *>(td)->updates_manager_.get();
-  auto min_qts = std::numeric_limits<int32>::max();
-  auto max_qts = 0;
-  if (!updates_manager->pending_qts_updates_.empty()) {
-    min_qts = updates_manager->pending_qts_updates_.begin()->first;
-    max_qts = updates_manager->pending_qts_updates_.rbegin()->first;
-  }
-  updates_manager->qts_gap_++;
-  fill_gap(td, PSTRING() << "QTS from " << updates_manager->get_qts() << " to " << min_qts << '-' << max_qts);
-}
-
-void UpdatesManager::fill_get_difference_gap(void *td) {
-  fill_gap(td, string());
-}
-
-void UpdatesManager::fill_gap(void *td, const string &source) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(td != nullptr);
-  if (!static_cast<Td *>(td)->auth_manager_->is_authorized()) {
-    return;
-  }
-  auto updates_manager = static_cast<Td *>(td)->updates_manager_.get();
-
-  if (!source.empty() && !updates_manager->running_get_difference_) {
-    auto auth_key_id = updates_manager->get_most_unused_auth_key_id();
-    uint64 update_count = 0;
-    double active_time = 0.0;
-    double delay_time = 0.0;
-    if (auth_key_id != 0) {
-      auto now = Time::now();
-      auto &info = updates_manager->session_infos_[auth_key_id];
-      update_count = info.update_count;
-      active_time = now - info.first_update_time;
-      delay_time = now - info.last_update_time;
-    }
-
-    LOG(WARNING) << "Filling gap in " << source
-                 << " by running getDifference. Receive no updates from session with auth key " << auth_key_id
-                 << " for " << delay_time << " seconds, active for " << active_time << " seconds and having "
-                 << update_count << " received updates";
-  }
-
-  updates_manager->get_difference("fill_gap");
-}
-
-void UpdatesManager::get_difference(const char *source) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  if (get_pts() == -1) {
-    init_state();
-    return;
-  }
-
-  if (running_get_difference_) {
-    VLOG(get_difference) << "Skip running getDifference from " << source << " because it is already running";
-    return;
-  }
-
-  run_get_difference(false, source);
-}
-
-void UpdatesManager::run_get_difference(bool is_recursive, const char *source) {
-  CHECK(get_pts() != -1);
-  CHECK(td_->auth_manager_->is_authorized());
-  CHECK(!running_get_difference_);
-
-  running_get_difference_ = true;
-
-  int32 pts = get_pts();
-  int32 date = get_date();
-  int32 qts = get_qts();
-  if (pts < 0) {
-    pts = 0;
-  }
-
-  VLOG(get_difference) << "-----BEGIN GET DIFFERENCE----- from " << source << " with PTS = " << pts << ", QTS = " << qts
-                       << ", date = " << date;
-
-  before_get_difference(false);
-
-  if (!is_recursive) {
-    min_postponed_update_pts_ = 0;
-    min_postponed_update_qts_ = 0;
-  }
-
-  auto promise = PromiseCreator::lambda([](Result<tl_object_ptr<telegram_api::updates_Difference>> result) {
-    if (result.is_ok()) {
-      send_closure(G()->updates_manager(), &UpdatesManager::on_get_difference, result.move_as_ok());
-    } else {
-      send_closure(G()->updates_manager(), &UpdatesManager::on_failed_get_difference, result.move_as_error());
-    }
-  });
-  td_->create_handler<GetDifferenceQuery>(std::move(promise))->send(pts, date, qts);
-  last_confirmed_pts_ = pts;
-  last_confirmed_qts_ = qts;
-}
-
-void UpdatesManager::before_get_difference(bool is_initial) {
-  // may be called many times before after_get_difference is called
-  send_closure(G()->state_manager(), &StateManager::on_synchronized, false);
-
-  td_->messages_manager_->before_get_difference();
-
-  vector<Promise<Unit>> promises;
-  if (can_postpone_updates()) {
-    for (auto &update : pending_pts_updates_) {
-      postponed_pts_updates_.emplace(std::move(update.update), update.pts, update.pts_count, update.receive_time,
-                                     std::move(update.promise));
-    }
-  } else {
-    for (auto &update : pending_pts_updates_) {
-      promises.push_back(std::move(update.promise));
-    }
-  }
-  set_promises(promises);
-
-  drop_all_pending_pts_updates();
-
-  send_closure_later(td_->notification_manager_actor_, &NotificationManager::before_get_difference);
-
-  if (get_difference_start_time_ <= 0) {
-    get_difference_start_time_ = Time::now();
-  }
-}
-
-Promise<> UpdatesManager::add_pts(int32 pts) {
-  auto id = pts_manager_.add_pts(pts);
-  return create_event_promise(self_closure(this, &UpdatesManager::on_pts_ack, id));
-}
-
-Promise<> UpdatesManager::add_qts(int32 qts) {
-  auto id = qts_manager_.add_pts(qts);
-  return create_event_promise(self_closure(this, &UpdatesManager::on_qts_ack, id));
-}
-
-void UpdatesManager::on_pts_ack(PtsManager::PtsId ack_token) {
-  auto old_pts = pts_manager_.db_pts();
-  auto new_pts = pts_manager_.finish(ack_token);
-  if (old_pts != new_pts) {
-    save_pts(new_pts);
-  }
-}
-
-void UpdatesManager::on_qts_ack(PtsManager::PtsId ack_token) {
-  auto old_qts = qts_manager_.db_pts();
-  auto new_qts = qts_manager_.finish(ack_token);
-  if (old_qts != new_qts) {
-    save_qts(new_qts);
-  }
-}
-
-void UpdatesManager::save_pts(int32 pts) {
-  if (pts == std::numeric_limits<int32>::max()) {
-    G()->td_db()->get_binlog_pmc()->erase("updates.pts");
-    last_pts_save_time_ -= 2 * MAX_PTS_SAVE_DELAY;
-    pending_pts_ = 0;
-  } else if (!td_->ignore_background_updates()) {
-    auto now = Time::now();
-    auto delay = last_pts_save_time_ + MAX_PTS_SAVE_DELAY - now;
-    if (delay <= 0 || !td_->auth_manager_->is_bot()) {
-      last_pts_save_time_ = now;
-      pending_pts_ = 0;
-      G()->td_db()->get_binlog_pmc()->set("updates.pts", to_string(pts));
-    } else {
-      pending_pts_ = pts;
-      if (!has_timeout()) {
-        set_timeout_in(delay);
-      }
-    }
-  }
-}
-
-void UpdatesManager::save_qts(int32 qts) {
-  if (!td_->ignore_background_updates()) {
-    auto now = Time::now();
-    auto delay = last_qts_save_time_ + MAX_PTS_SAVE_DELAY - now;
-    if (delay <= 0 || !td_->auth_manager_->is_bot()) {
-      last_qts_save_time_ = now;
-      pending_qts_ = 0;
-      G()->td_db()->get_binlog_pmc()->set("updates.qts", to_string(qts));
-    } else {
-      pending_qts_ = qts;
-      if (!has_timeout()) {
-        set_timeout_in(delay);
-      }
-    }
-  }
-}
-
-void UpdatesManager::timeout_expired() {
-  if (pending_pts_ != 0) {
-    last_pts_save_time_ -= 2 * MAX_PTS_SAVE_DELAY;
-    save_pts(pending_pts_);
-    CHECK(pending_pts_ == 0);
-  }
-  if (pending_qts_ != 0) {
-    last_qts_save_time_ -= 2 * MAX_PTS_SAVE_DELAY;
-    save_qts(pending_qts_);
-    CHECK(pending_qts_ == 0);
-  }
-}
-
-Promise<> UpdatesManager::set_pts(int32 pts, const char *source) {
-  if (pts == std::numeric_limits<int32>::max()) {
-    LOG(WARNING) << "Update PTS from " << get_pts() << " to -1 from " << source;
-    save_pts(pts);  // drop saved PTS value
-    auto result = add_pts(pts);
-    init_state();
-    return result;
-  }
-  Promise<> result;
-  auto old_pts = get_pts();
-  if (pts > old_pts || (0 < pts && pts < old_pts - 1000009)) {  // PTS can only go up or drop cardinally
-    if (pts < old_pts - 1000009) {
-      LOG(WARNING) << "PTS decreases from " << old_pts << " to " << pts << " from " << source;
-    } else {
-      LOG(INFO) << "Update PTS from " << old_pts << " to " << pts << " from " << source;
-      if (old_pts > 0) {
-        pts_diff_ += pts - old_pts;
-        if (pts_diff_ >= 1000000) {
-          if (pts_gap_ > 0 || pts_short_gap_ > 0) {
-            LOG(WARNING) << "Fixed " << pts_gap_ << " PTS gaps and " << pts_fixed_short_gap_ << " short gaps up to PTS "
-                         << pts << " by sending " << pts_short_gap_ << " requests";
-            pts_short_gap_ = 0;
-            pts_fixed_short_gap_ = 0;
-            pts_gap_ = 0;
-          }
-          pts_diff_ = 0;
-        }
-      }
-    }
-
-    result = add_pts(pts);
-    if (last_confirmed_pts_ < get_pts() - FORCED_GET_DIFFERENCE_PTS_DIFF && last_confirmed_pts_ != 0) {
-      confirm_pts_qts(get_qts());
-    }
-  } else if (pts < get_pts() && (pts > 1 || td_->option_manager_->get_option_integer("session_count") <= 1)) {
-    LOG(ERROR) << "Receive wrong PTS = " << pts << " from " << source << ". Current PTS = " << get_pts();
-  }
-  return result;
-}
-
-void UpdatesManager::set_date(int32 date, bool from_update, string date_source) {
-  if (date > date_) {
-    LOG(INFO) << "Update date to " << date;
-    if (from_update && false) {  // date in updates is decreased by the server
-      date--;
-
-      if (date == date_) {
-        return;
-      }
-    }
-    auto now = G()->unix_time();
-    if (date_ > now + 1) {
-      LOG(ERROR) << "Receive wrong by " << (date_ - now) << " date = " << date_ << " from " << date_source;
-      date_ = now;
-      if (date_ <= date) {
-        return;
-      }
-    }
-
-    date_ = date;
-    date_source_ = std::move(date_source);
-    if (!td_->ignore_background_updates()) {
-      G()->td_db()->get_binlog_pmc()->set("updates.date", to_string(date));
-    }
-  } else if (date < date_) {
-    if (from_update) {
-      date++;
-
-      if (date == date_) {
-        return;
-      }
-    }
-    LOG(ERROR) << "Receive wrong by " << (date_ - date) << " date = " << date << " from " << date_source
-               << ". Current date = " << date_ << " from " << date_source_;
-  }
-}
-
-bool UpdatesManager::is_acceptable_user(UserId user_id) const {
-  return td_->user_manager_->have_user_force(user_id, "is_acceptable_user") && td_->user_manager_->have_user(user_id);
-}
-
-bool UpdatesManager::is_acceptable_chat(ChatId chat_id) const {
-  return td_->chat_manager_->have_chat_force(chat_id, "is_acceptable_chat");
-}
-
-bool UpdatesManager::is_acceptable_channel(ChannelId channel_id) const {
-  return td_->chat_manager_->have_channel_force(channel_id, "is_acceptable_channel");
-}
-
-bool UpdatesManager::is_acceptable_peer(const tl_object_ptr<telegram_api::Peer> &peer) const {
-  if (peer == nullptr) {
-    return true;
-  }
-
-  DialogId dialog_id(peer);
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-      if (!is_acceptable_user(dialog_id.get_user_id())) {
-        return false;
-      }
-      break;
-    case DialogType::Chat:
-      if (!is_acceptable_chat(dialog_id.get_chat_id())) {
-        return false;
-      }
-      break;
-    case DialogType::Channel:
-      if (!is_acceptable_channel(dialog_id.get_channel_id())) {
-        return false;
-      }
-      break;
-    case DialogType::None:
-      return false;
-    case DialogType::SecretChat:
-    default:
-      UNREACHABLE();
-      return false;
-  }
-  return true;
-}
-
-bool UpdatesManager::is_acceptable_message_entities(
-    const vector<tl_object_ptr<telegram_api::MessageEntity>> &message_entities) const {
-  for (auto &entity : message_entities) {
-    if (entity->get_id() == telegram_api::messageEntityMentionName::ID) {
-      auto entity_mention_name = static_cast<const telegram_api::messageEntityMentionName *>(entity.get());
-      UserId user_id(entity_mention_name->user_id_);
-      if (!is_acceptable_user(user_id) || td_->user_manager_->get_input_user(user_id).is_error()) {
-        return false;
-      }
-    }
-  }
-  return true;
-}
-
-bool UpdatesManager::is_acceptable_reply_markup(const tl_object_ptr<telegram_api::ReplyMarkup> &reply_markup) const {
-  if (reply_markup == nullptr || reply_markup->get_id() != telegram_api::replyInlineMarkup::ID) {
-    return true;
-  }
-  for (const auto &row : static_cast<const telegram_api::replyInlineMarkup *>(reply_markup.get())->rows_) {
-    for (const auto &button : row->buttons_) {
-      if (button->get_id() == telegram_api::keyboardButtonUserProfile::ID) {
-        auto user_profile_button = static_cast<const telegram_api::keyboardButtonUserProfile *>(button.get());
-        UserId user_id(user_profile_button->user_id_);
-        if (!is_acceptable_user(user_id) || td_->user_manager_->get_input_user(user_id).is_error()) {
-          return false;
-        }
-      }
-    }
-  }
-  return true;
-}
-
-bool UpdatesManager::is_acceptable_message_reply_header(
-    const telegram_api::object_ptr<telegram_api::MessageReplyHeader> &header) const {
-  if (header == nullptr) {
-    return true;
-  }
-
-  switch (header->get_id()) {
-    case telegram_api::messageReplyHeader::ID: {
-      auto reply_header = static_cast<const telegram_api::messageReplyHeader *>(header.get());
-      return is_acceptable_peer(reply_header->reply_to_peer_id_) &&
-             is_acceptable_message_forward_header(reply_header->reply_from_) &&
-             is_acceptable_message_entities(reply_header->quote_entities_) &&
-             is_acceptable_message_media(reply_header->reply_media_);
-    }
-    case telegram_api::messageReplyStoryHeader::ID: {
-      auto reply_header = static_cast<const telegram_api::messageReplyStoryHeader *>(header.get());
-      return is_acceptable_peer(reply_header->peer_);
-    }
-    default:
-      UNREACHABLE();
-      return true;
-  }
-}
-
-bool UpdatesManager::is_acceptable_message_forward_header(
-    const telegram_api::object_ptr<telegram_api::messageFwdHeader> &header) const {
-  if (header == nullptr) {
-    return true;
-  }
-
-  if (!is_acceptable_peer(header->from_id_)) {
-    return false;
-  }
-  if (!is_acceptable_peer(header->saved_from_peer_)) {
-    return false;
-  }
-  return true;
-}
-
-bool UpdatesManager::is_acceptable_message_media(
-    const telegram_api::object_ptr<telegram_api::MessageMedia> &media_ptr) const {
-  if (media_ptr == nullptr) {
-    return true;
-  }
-  switch (media_ptr->get_id()) {
-    case telegram_api::messageMediaContact::ID: {
-      auto message_media = static_cast<const telegram_api::messageMediaContact *>(media_ptr.get());
-      UserId user_id(message_media->user_id_);
-      return user_id == UserId() || is_acceptable_user(user_id);
-    }
-    case telegram_api::messageMediaStory::ID: {
-      auto message_media = static_cast<const telegram_api::messageMediaStory *>(media_ptr.get());
-      return is_acceptable_peer(message_media->peer_);
-    }
-    case telegram_api::messageMediaGiveaway::ID: {
-      auto message_media = static_cast<const telegram_api::messageMediaGiveaway *>(media_ptr.get());
-      for (auto channel_id : message_media->channels_) {
-        if (!is_acceptable_channel(ChannelId(channel_id))) {
-          return false;
-        }
-      }
-      return true;
-    }
-    case telegram_api::messageMediaGiveawayResults::ID: {
-      auto message_media = static_cast<const telegram_api::messageMediaGiveawayResults *>(media_ptr.get());
-      if (!is_acceptable_channel(ChannelId(message_media->channel_id_))) {
-        return false;
-      }
-      for (auto user_id : message_media->winners_) {
-        if (!is_acceptable_user(UserId(user_id))) {
-          return false;
-        }
-      }
-      return true;
-    }
-    case telegram_api::messageMediaPoll::ID:
-      /*
-      // the users and chats are always min, so no need to check
-      auto message_media_poll = static_cast<const telegram_api::messageMediaPoll *>(media_ptr.get());
-      for (auto recent_voter : message_media_poll->results_->recent_voters_) {
-        if (!is_acceptable_peer(recent_voter)) {
-          return false;
-        }
-      }
-      */
-      return true;
-    case telegram_api::messageMediaWebPage::ID:
-      /*
-      // the channel is always min, so no need to check
-      auto message_media_web_page = static_cast<const telegram_api::messageMediaWebPage *>(media_ptr.get());
-      if (message_media_web_page->webpage_->get_id() == telegram_api::webPage::ID) {
-        auto web_page = static_cast<const telegram_api::webPage *>(message_media_web_page->webpage_.get());
-        if (web_page->cached_page_ != nullptr) {
-          const vector<tl_object_ptr<telegram_api::PageBlock>> *page_blocks = nullptr;
-          downcast_call(*web_page->cached_page_, [&page_blocks](auto &page) { page_blocks = &page.blocks_; });
-          CHECK(page_blocks != nullptr);
-          for (auto &page_block : *page_blocks) {
-            if (page_block->get_id() == telegram_api::pageBlockChannel::ID) {
-              auto page_block_channel = static_cast<const telegram_api::pageBlockChannel *>(page_block.get());
-              auto channel_id = ChatManager::get_channel_id(page_block_channel->channel_);
-              if (channel_id.is_valid()) {
-                if (!is_acceptable_channel(channel_id)) {
-                  return false;
-                }
-              } else {
-                LOG(ERROR) << "Receive wrong channel " << to_string(page_block_channel->channel_);
-              }
-            }
-          }
-        }
-      }
-      */
-      return true;
-    default:
-      return true;
-  }
-}
-
-bool UpdatesManager::is_acceptable_message(const telegram_api::Message *message_ptr) const {
-  CHECK(message_ptr != nullptr);
-  int32 constructor_id = message_ptr->get_id();
-
-  switch (constructor_id) {
-    case telegram_api::messageEmpty::ID:
-      return true;
-    case telegram_api::message::ID: {
-      auto message = static_cast<const telegram_api::message *>(message_ptr);
-
-      if (!is_acceptable_peer(message->peer_id_)) {
-        return false;
-      }
-      if (!is_acceptable_peer(message->from_id_)) {
-        return false;
-      }
-
-      if (!is_acceptable_message_reply_header(message->reply_to_)) {
-        return false;
-      }
-      if (!is_acceptable_message_forward_header(message->fwd_from_)) {
-        return false;
-      }
-
-      UserId via_bot_user_id(message->via_bot_id_);
-      if (via_bot_user_id != UserId() && !is_acceptable_user(via_bot_user_id)) {
-        return false;
-      }
-
-      if (!is_acceptable_message_entities(message->entities_)) {
-        return false;
-      }
-
-      if (!is_acceptable_message_media(message->media_)) {
-        return false;
-      }
-
-      /*
-      // the dialogs are always min, so no need to check
-      if (message->replies_ != nullptr) {
-        for (auto &peer : message->replies_->recent_repliers_) {
-          if (!is_acceptable_peer(peer)) {
-            return false;
-          }
-        }
-      }
-      */
-
-      break;
-    }
-    case telegram_api::messageService::ID: {
-      auto message = static_cast<const telegram_api::messageService *>(message_ptr);
-
-      if (!is_acceptable_peer(message->peer_id_)) {
-        return false;
-      }
-      if (!is_acceptable_peer(message->from_id_)) {
-        return false;
-      }
-
-      const telegram_api::MessageAction *action = message->action_.get();
-      CHECK(action != nullptr);
-
-      switch (action->get_id()) {
-        case telegram_api::messageActionEmpty::ID:
-        case telegram_api::messageActionChatEditTitle::ID:
-        case telegram_api::messageActionChatEditPhoto::ID:
-        case telegram_api::messageActionChatDeletePhoto::ID:
-        case telegram_api::messageActionCustomAction::ID:
-        case telegram_api::messageActionBotAllowed::ID:
-        case telegram_api::messageActionHistoryClear::ID:
-        case telegram_api::messageActionChannelCreate::ID:
-        case telegram_api::messageActionPinMessage::ID:
-        case telegram_api::messageActionGameScore::ID:
-        case telegram_api::messageActionPhoneCall::ID:
-        case telegram_api::messageActionPaymentSent::ID:
-        case telegram_api::messageActionPaymentSentMe::ID:
-        case telegram_api::messageActionScreenshotTaken::ID:
-        case telegram_api::messageActionSecureValuesSent::ID:
-        case telegram_api::messageActionSecureValuesSentMe::ID:
-        case telegram_api::messageActionContactSignUp::ID:
-        case telegram_api::messageActionGroupCall::ID:
-        case telegram_api::messageActionGroupCallScheduled::ID:
-        case telegram_api::messageActionSetChatTheme::ID:
-        case telegram_api::messageActionChatJoinedByRequest::ID:
-        case telegram_api::messageActionWebViewDataSentMe::ID:
-        case telegram_api::messageActionWebViewDataSent::ID:
-        case telegram_api::messageActionGiftPremium::ID:
-        case telegram_api::messageActionTopicCreate::ID:
-        case telegram_api::messageActionTopicEdit::ID:
-        case telegram_api::messageActionSuggestProfilePhoto::ID:
-        case telegram_api::messageActionSetChatWallPaper::ID:
-        case telegram_api::messageActionGiveawayLaunch::ID:
-        case telegram_api::messageActionGiveawayResults::ID:
-        case telegram_api::messageActionBoostApply::ID:
-        case telegram_api::messageActionRequestedPeerSentMe::ID:
-        case telegram_api::messageActionGiftStars::ID:
-        case telegram_api::messageActionPrizeStars::ID:
-        case telegram_api::messageActionStarGift::ID:
-        case telegram_api::messageActionStarGiftUnique::ID:
-        case telegram_api::messageActionPaidMessagesRefunded::ID:
-        case telegram_api::messageActionPaidMessagesPrice::ID:
-          break;
-        case telegram_api::messageActionChatCreate::ID: {
-          auto chat_create = static_cast<const telegram_api::messageActionChatCreate *>(action);
-          for (auto &user : chat_create->users_) {
-            if (!is_acceptable_user(UserId(user))) {
-              return false;
-            }
-          }
-          break;
-        }
-        case telegram_api::messageActionChatAddUser::ID: {
-          auto chat_add_user = static_cast<const telegram_api::messageActionChatAddUser *>(action);
-          for (auto &user : chat_add_user->users_) {
-            if (!is_acceptable_user(UserId(user))) {
-              return false;
-            }
-          }
-          break;
-        }
-        case telegram_api::messageActionChatJoinedByLink::ID:
-          // inviter_id_ isn't used
-          break;
-        case telegram_api::messageActionChatDeleteUser::ID: {
-          auto chat_delete_user = static_cast<const telegram_api::messageActionChatDeleteUser *>(action);
-          if (!is_acceptable_user(UserId(chat_delete_user->user_id_))) {
-            return false;
-          }
-          break;
-        }
-        case telegram_api::messageActionChatMigrateTo::ID: {
-          auto chat_migrate_to = static_cast<const telegram_api::messageActionChatMigrateTo *>(action);
-          if (!is_acceptable_channel(ChannelId(chat_migrate_to->channel_id_))) {
-            return false;
-          }
-          break;
-        }
-        case telegram_api::messageActionChannelMigrateFrom::ID: {
-          auto channel_migrate_from = static_cast<const telegram_api::messageActionChannelMigrateFrom *>(action);
-          if (!is_acceptable_chat(ChatId(channel_migrate_from->chat_id_))) {
-            return false;
-          }
-          break;
-        }
-        case telegram_api::messageActionGeoProximityReached::ID: {
-          auto geo_proximity_reached = static_cast<const telegram_api::messageActionGeoProximityReached *>(action);
-          if (!is_acceptable_peer(geo_proximity_reached->from_id_)) {
-            return false;
-          }
-          if (!is_acceptable_peer(geo_proximity_reached->to_id_)) {
-            return false;
-          }
-          break;
-        }
-        case telegram_api::messageActionInviteToGroupCall::ID: {
-          auto invite_to_group_call = static_cast<const telegram_api::messageActionInviteToGroupCall *>(action);
-          for (auto &user : invite_to_group_call->users_) {
-            if (!is_acceptable_user(UserId(user))) {
-              return false;
-            }
-          }
-          break;
-        }
-        case telegram_api::messageActionSetMessagesTTL::ID: {
-          auto set_messages_ttl = static_cast<const telegram_api::messageActionSetMessagesTTL *>(action);
-          if (set_messages_ttl->auto_setting_from_ != 0 &&
-              !is_acceptable_user(UserId(set_messages_ttl->auto_setting_from_))) {
-            return false;
-          }
-          break;
-        }
-        case telegram_api::messageActionRequestedPeer::ID: {
-          auto requested_peer = static_cast<const telegram_api::messageActionRequestedPeer *>(action);
-          if (!td_->auth_manager_->is_bot()) {
-            for (auto &peer : requested_peer->peers_) {
-              if (!is_acceptable_peer(peer)) {
-                return false;
-              }
-            }
-          }
-          break;
-        }
-        case telegram_api::messageActionGiftCode::ID: {
-          auto gift_code = static_cast<const telegram_api::messageActionGiftCode *>(action);
-          if (!is_acceptable_peer(gift_code->boost_peer_)) {
-            return false;
-          }
-          break;
-        }
-        case telegram_api::messageActionPaymentRefunded::ID: {
-          auto payment_refunded = static_cast<const telegram_api::messageActionPaymentRefunded *>(action);
-          if (!is_acceptable_peer(payment_refunded->peer_)) {
-            return false;
-          }
-          break;
-        }
-        default:
-          UNREACHABLE();
-          return false;
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-      return false;
-  }
-
-  return true;
-}
-
-bool UpdatesManager::is_acceptable_update(const telegram_api::Update *update) const {
-  if (update == nullptr) {
-    return true;
-  }
-  int32 id = update->get_id();
-  const telegram_api::Message *message = nullptr;
-  if (id == telegram_api::updateNewMessage::ID) {
-    message = static_cast<const telegram_api::updateNewMessage *>(update)->message_.get();
-  }
-  if (id == telegram_api::updateNewChannelMessage::ID) {
-    message = static_cast<const telegram_api::updateNewChannelMessage *>(update)->message_.get();
-  }
-  if (id == telegram_api::updateNewScheduledMessage::ID) {
-    message = static_cast<const telegram_api::updateNewScheduledMessage *>(update)->message_.get();
-  }
-  if (id == telegram_api::updateEditMessage::ID) {
-    message = static_cast<const telegram_api::updateEditMessage *>(update)->message_.get();
-  }
-  if (id == telegram_api::updateEditChannelMessage::ID) {
-    message = static_cast<const telegram_api::updateEditChannelMessage *>(update)->message_.get();
-  }
-  if (message != nullptr) {
-    return is_acceptable_message(message);
-  }
-
-  return true;
-}
-
-void UpdatesManager::on_get_updates(tl_object_ptr<telegram_api::Updates> &&updates_ptr, Promise<Unit> &&promise) {
-  send_closure_later(actor_id(this), &UpdatesManager::on_get_updates_impl, std::move(updates_ptr), std::move(promise));
-}
-
-void UpdatesManager::on_get_updates_impl(telegram_api::object_ptr<telegram_api::Updates> updates_ptr,
-                                         Promise<Unit> promise) {
-  CHECK(updates_ptr != nullptr);
-  promise = PromiseCreator::lambda(
-      [promise = std::move(promise), update_ids = get_update_ids(updates_ptr.get())](Result<Unit> result) mutable {
-        if (!G()->close_flag() && result.is_error()) {
-          LOG(ERROR) << "Failed to process updates " << update_ids << ": " << result.error();
-        }
-        promise.set_value(Unit());
-      });
-
-  auto updates_type = updates_ptr->get_id();
-  if (updates_type != telegram_api::updateShort::ID) {
-    LOG(INFO) << "Receive " << to_string(updates_ptr);
-  }
-  if (!td_->auth_manager_->is_authorized()) {
-    if (updates_type == telegram_api::updateShort::ID && !G()->close_flag()) {
-      auto &update = static_cast<telegram_api::updateShort *>(updates_ptr.get())->update_;
-      auto update_id = update->get_id();
-      if (update_id == telegram_api::updateLoginToken::ID) {
-        td_->auth_manager_->on_update_login_token();
-        return promise.set_value(Unit());
-      }
-
-      switch (update_id) {
-        case telegram_api::updateServiceNotification::ID:
-        case telegram_api::updateDcOptions::ID:
-        case telegram_api::updateConfig::ID:
-        case telegram_api::updateLangPackTooLong::ID:
-        case telegram_api::updateLangPack::ID:
-          LOG(INFO) << "Apply without authorization " << to_string(updates_ptr);
-          downcast_call(*update, OnUpdate(this, update, std::move(promise)));
-          return;
-        default:
-          break;
-      }
-    }
-    LOG(INFO) << "Ignore received before authorization or after logout " << to_string(updates_ptr);
-    return promise.set_value(Unit());
-  }
-
-  switch (updates_type) {
-    case telegram_api::updatesTooLong::ID:
-      get_difference("updatesTooLong");
-      promise.set_value(Unit());
-      break;
-    case telegram_api::updateShortMessage::ID: {
-      auto update = telegram_api::move_object_as<telegram_api::updateShortMessage>(updates_ptr);
-      auto from_id = update->out_ ? td_->user_manager_->get_my_id().get() : update->user_id_;
-      auto message = telegram_api::make_object<telegram_api::message>(
-          0 /*unused*/, update->out_, update->mentioned_, update->media_unread_, update->silent_, false, false, false,
-          false, false, false, false, false, 0, false, update->id_,
-          telegram_api::make_object<telegram_api::peerUser>(from_id), 0,
-          telegram_api::make_object<telegram_api::peerUser>(update->user_id_), nullptr, std::move(update->fwd_from_),
-          update->via_bot_id_, 0, std::move(update->reply_to_), update->date_, update->message_, nullptr, nullptr,
-          std::move(update->entities_), 0, 0, nullptr, 0, string(), 0, nullptr, Auto(), update->ttl_period_, 0, 0,
-          nullptr, 0, 0);
-      on_pending_update(telegram_api::make_object<telegram_api::updateNewMessage>(std::move(message), update->pts_,
-                                                                                  update->pts_count_),
-                        0, std::move(promise), "telegram_api::updateShortMessage");
-      break;
-    }
-    case telegram_api::updateShortChatMessage::ID: {
-      auto update = telegram_api::move_object_as<telegram_api::updateShortChatMessage>(updates_ptr);
-      auto message = telegram_api::make_object<telegram_api::message>(
-          0 /*unused*/, update->out_, update->mentioned_, update->media_unread_, update->silent_, false, false, false,
-          false, false, false, false, false, 0, false, update->id_,
-          telegram_api::make_object<telegram_api::peerUser>(update->from_id_), 0,
-          telegram_api::make_object<telegram_api::peerChat>(update->chat_id_), nullptr, std::move(update->fwd_from_),
-          update->via_bot_id_, 0, std::move(update->reply_to_), update->date_, update->message_, nullptr, nullptr,
-          std::move(update->entities_), 0, 0, nullptr, 0, string(), 0, nullptr, Auto(), update->ttl_period_, 0, 0,
-          nullptr, 0, 0);
-      on_pending_update(telegram_api::make_object<telegram_api::updateNewMessage>(std::move(message), update->pts_,
-                                                                                  update->pts_count_),
-                        0, std::move(promise), "telegram_api::updateShortChatMessage");
-      break;
-    }
-    case telegram_api::updateShort::ID: {
-      auto update = telegram_api::move_object_as<telegram_api::updateShort>(updates_ptr);
-      LOG(DEBUG) << "Receive " << oneline(to_string(update));
-      if (!is_acceptable_update(update->update_.get())) {
-        LOG(ERROR) << "Receive unacceptable short update: " << oneline(to_string(update));
-        promise.set_value(Unit());
-        return get_difference("unacceptable short update");
-      }
-      short_update_date_ = update->date_;
-      downcast_call(*update->update_, OnUpdate(this, update->update_, std::move(promise)));
-      short_update_date_ = 0;
-      break;
-    }
-    case telegram_api::updatesCombined::ID: {
-      auto updates = telegram_api::move_object_as<telegram_api::updatesCombined>(updates_ptr);
-      td_->user_manager_->on_get_users(std::move(updates->users_), "updatesCombined");
-      td_->chat_manager_->on_get_chats(std::move(updates->chats_), "updatesCombined");
-      on_pending_updates(std::move(updates->updates_), updates->seq_start_, updates->seq_, updates->date_, Time::now(),
-                         std::move(promise), "telegram_api::updatesCombined");
-      break;
-    }
-    case telegram_api::updates::ID: {
-      auto updates = telegram_api::move_object_as<telegram_api::updates>(updates_ptr);
-      string source_str;
-      const char *source = "updates";
-      if (updates->updates_.size() == 1 && updates->updates_[0] != nullptr) {
-        source_str = PSTRING() << "update " << updates->updates_[0]->get_id();
-        source = source_str.c_str();
-      }
-      td_->user_manager_->on_get_users(std::move(updates->users_), source);
-      td_->chat_manager_->on_get_chats(std::move(updates->chats_), source);
-      on_pending_updates(std::move(updates->updates_), updates->seq_, updates->seq_, updates->date_, Time::now(),
-                         std::move(promise), "telegram_api::updates");
-      break;
-    }
-    case telegram_api::updateShortSentMessage::ID:
-      LOG(ERROR) << "Receive " << oneline(to_string(updates_ptr));
-      get_difference("updateShortSentMessage");
-      promise.set_value(Unit());
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void UpdatesManager::on_failed_get_updates_state(Status &&error) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  if (error.code() != 401) {
-    LOG(ERROR) << "Receive updates.getState error: " << error;
-  }
-
-  running_get_difference_ = false;
-  schedule_get_difference("on_failed_get_updates_state");
-}
-
-void UpdatesManager::on_failed_get_difference(Status &&error) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  if (error.code() != 401) {
-    LOG(ERROR) << "Receive updates.getDifference error: " << error;
-  }
-
-  running_get_difference_ = false;
-  schedule_get_difference("on_failed_get_difference");
-
-  if (error.message() == Slice("PERSISTENT_TIMESTAMP_INVALID")) {
-    set_pts(std::numeric_limits<int32>::max(), "PERSISTENT_TIMESTAMP_INVALID").set_value(Unit());
-  }
-}
-
-void UpdatesManager::schedule_get_difference(const char *source) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  if (!retry_timeout_.has_timeout()) {
-    LOG(WARNING) << "Schedule getDifference in " << retry_time_ << " seconds with PTS = " << get_pts()
-                 << ", QTS = " << get_qts() << ", date = " << get_date() << " from " << source;
-    retry_timeout_.set_callback(std::move(fill_get_difference_gap));
-    retry_timeout_.set_callback_data(static_cast<void *>(td_));
-    retry_timeout_.set_timeout_in(retry_time_);
-    retry_time_ *= 2;
-    if (retry_time_ > 60) {
-      retry_time_ = Random::fast(60, 80);
-    }
-  } else {
-    VLOG(get_difference) << "Schedule getDifference from " << source;
-  }
-}
-
-void UpdatesManager::on_get_updates_state(tl_object_ptr<telegram_api::updates_state> &&state, const char *source) {
-  CHECK(state != nullptr);
-
-  VLOG(get_difference) << "Receive " << oneline(to_string(state)) << " from " << source;
-  // TODO use state->unread_count;
-
-  if (get_pts() == std::numeric_limits<int32>::max()) {
-    LOG(WARNING) << "Restore PTS to " << state->pts_;
-    // restoring right PTS
-    CHECK(pending_pts_updates_.empty());
-    auto real_running_get_difference = running_get_difference_;
-    running_get_difference_ = false;
-    process_postponed_pts_updates();  // drop all updates with old PTS
-    running_get_difference_ = real_running_get_difference;
-    pts_manager_.init(state->pts_);
-    last_confirmed_pts_ = get_pts();
-    last_pts_save_time_ = Time::now() - 2 * MAX_PTS_SAVE_DELAY;
-    save_pts(state->pts_);
-  } else {
-    string full_source = "on_get_updates_state " + oneline(to_string(state)) + " from " + source;
-    set_pts(state->pts_, full_source.c_str()).set_value(Unit());
-    set_date(state->date_, false, std::move(full_source));
-    add_qts(state->qts_).set_value(Unit());
-
-    seq_ = state->seq_;
-  }
-
-  if (running_get_difference_) {  // called from getUpdatesState
-    running_get_difference_ = false;
-    after_get_difference();
-  }
-}
-
-const vector<tl_object_ptr<telegram_api::Update>> *UpdatesManager::get_updates(
-    const telegram_api::Updates *updates_ptr) {
-  switch (updates_ptr->get_id()) {
-    case telegram_api::updatesTooLong::ID:
-    case telegram_api::updateShortMessage::ID:
-    case telegram_api::updateShortChatMessage::ID:
-    case telegram_api::updateShort::ID:
-    case telegram_api::updateShortSentMessage::ID:
-      LOG(ERROR) << "Receive " << oneline(to_string(*updates_ptr)) << " instead of updates";
-      return nullptr;
-    case telegram_api::updatesCombined::ID:
-      return &static_cast<const telegram_api::updatesCombined *>(updates_ptr)->updates_;
-    case telegram_api::updates::ID:
-      return &static_cast<const telegram_api::updates *>(updates_ptr)->updates_;
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-vector<tl_object_ptr<telegram_api::Update>> *UpdatesManager::get_updates(telegram_api::Updates *updates_ptr) {
-  return const_cast<vector<tl_object_ptr<telegram_api::Update>> *>(
-      get_updates(static_cast<const telegram_api::Updates *>(updates_ptr)));
-}
-
-bool UpdatesManager::are_empty_updates(const telegram_api::Updates *updates_ptr) {
-  switch (updates_ptr->get_id()) {
-    case telegram_api::updatesTooLong::ID:
-    case telegram_api::updateShortSentMessage::ID:
-      return true;
-    case telegram_api::updateShortMessage::ID:
-    case telegram_api::updateShortChatMessage::ID:
-    case telegram_api::updateShort::ID:
-      return false;
-    case telegram_api::updatesCombined::ID:
-      return static_cast<const telegram_api::updatesCombined *>(updates_ptr)->updates_.empty();
-    case telegram_api::updates::ID:
-      return static_cast<const telegram_api::updates *>(updates_ptr)->updates_.empty();
-    default:
-      UNREACHABLE();
-      return true;
-  }
-}
-
-FlatHashSet<int64> UpdatesManager::get_sent_messages_random_ids(const telegram_api::Updates *updates_ptr) {
-  FlatHashSet<int64> random_ids;
-  auto updates = get_updates(updates_ptr);
-  if (updates != nullptr) {
-    auto new_messages = get_new_messages(updates_ptr);
-    for (auto &update : *updates) {
-      if (update->get_id() == telegram_api::updateMessageID::ID) {
-        auto update_message_id = static_cast<const telegram_api::updateMessageID *>(update.get());
-        int64 random_id = update_message_id->random_id_;
-        if (random_id != 0) {
-          bool found_message = false;
-          for (auto message : new_messages) {
-            MessageId message_id = MessageId::get_message_id(message.first, message.second);
-            if (message.second) {
-              found_message |= message_id.is_valid_scheduled() &&
-                               message_id.get_scheduled_server_message_id().get() == update_message_id->id_;
-            } else {
-              found_message |=
-                  message_id.is_valid() && message_id.get_server_message_id().get() == update_message_id->id_;
-            }
-          }
-          if (found_message && !random_ids.insert(random_id).second) {
-            LOG(ERROR) << "Receive twice updateMessageID for " << random_id;
-          }
-        }
-      }
-    }
-  }
-  return random_ids;
-}
-
-const telegram_api::Message *UpdatesManager::get_message_by_random_id(const telegram_api::Updates *updates_ptr,
-                                                                      DialogId dialog_id, int64 random_id) {
-  auto updates = get_updates(updates_ptr);
-  if (updates == nullptr) {
-    return nullptr;
-  }
-
-  int32 message_id = 0;
-  for (auto &update : *updates) {
-    if (update->get_id() == telegram_api::updateMessageID::ID) {
-      auto update_message_id = static_cast<const telegram_api::updateMessageID *>(update.get());
-      if (update_message_id->random_id_ == random_id) {
-        if (message_id != 0 || update_message_id->id_ == 0) {
-          return nullptr;
-        }
-        message_id = update_message_id->id_;
-      }
-    }
-  }
-  if (message_id == 0) {
-    return nullptr;
-  }
-
-  const telegram_api::Message *result = nullptr;
-  MessageFullId message_full_id(dialog_id, MessageId(ServerMessageId(message_id)));
-  for (auto &update : *updates) {
-    auto constructor_id = update->get_id();
-    const tl_object_ptr<telegram_api::Message> *message = nullptr;
-    if (constructor_id == telegram_api::updateNewMessage::ID) {
-      message = &static_cast<const telegram_api::updateNewMessage *>(update.get())->message_;
-    } else if (constructor_id == telegram_api::updateNewChannelMessage::ID) {
-      message = &static_cast<const telegram_api::updateNewChannelMessage *>(update.get())->message_;
-    }
-    if (message != nullptr && MessageFullId::get_message_full_id(*message, false) == message_full_id) {
-      if (result != nullptr) {
-        return nullptr;
-      }
-      result = message->get();
-    }
-  }
-  return result;
-}
-
-bool UpdatesManager::is_additional_service_message(const telegram_api::Message *message) {
-  if (message->get_id() != telegram_api::messageService::ID) {
-    return false;
-  }
-  auto action_id = static_cast<const telegram_api::messageService *>(message)->action_->get_id();
-  return action_id == telegram_api::messageActionSetMessagesTTL::ID;
-}
-
-vector<std::pair<const telegram_api::Message *, bool>> UpdatesManager::get_new_messages(
-    const telegram_api::Updates *updates_ptr) {
-  vector<std::pair<const telegram_api::Message *, bool>> messages;
-  auto updates = get_updates(updates_ptr);
-  if (updates != nullptr) {
-    for (auto &update : *updates) {
-      const telegram_api::Message *message = nullptr;
-      bool is_scheduled = false;
-      auto constructor_id = update->get_id();
-      if (constructor_id == telegram_api::updateNewMessage::ID) {
-        message = static_cast<const telegram_api::updateNewMessage *>(update.get())->message_.get();
-      } else if (constructor_id == telegram_api::updateNewChannelMessage::ID) {
-        message = static_cast<const telegram_api::updateNewChannelMessage *>(update.get())->message_.get();
-      } else if (constructor_id == telegram_api::updateNewScheduledMessage::ID) {
-        message = static_cast<const telegram_api::updateNewScheduledMessage *>(update.get())->message_.get();
-        is_scheduled = true;
-      }
-
-      if (message != nullptr && !is_additional_service_message(message)) {
-        messages.emplace_back(message, is_scheduled);
-      }
-    }
-  }
-  return messages;
-}
-
-vector<InputGroupCallId> UpdatesManager::get_update_new_group_call_ids(const telegram_api::Updates *updates_ptr) {
-  vector<InputGroupCallId> input_group_call_ids;
-  auto updates = get_updates(updates_ptr);
-  if (updates != nullptr) {
-    for (auto &update : *updates) {
-      InputGroupCallId input_group_call_id;
-      if (update->get_id() == telegram_api::updateGroupCall::ID) {
-        auto group_call_ptr = static_cast<const telegram_api::updateGroupCall *>(update.get())->call_.get();
-        if (group_call_ptr->get_id() == telegram_api::groupCall::ID) {
-          auto group_call = static_cast<const telegram_api::groupCall *>(group_call_ptr);
-          input_group_call_id = InputGroupCallId(group_call->id_, group_call->access_hash_);
-        }
-      }
-
-      if (input_group_call_id.is_valid()) {
-        input_group_call_ids.push_back(input_group_call_id);
-      }
-    }
-  }
-  return input_group_call_ids;
-}
-
-void UpdatesManager::process_updates_users_and_chats(telegram_api::Updates *updates_ptr) {
-  switch (updates_ptr->get_id()) {
-    case telegram_api::updatesCombined::ID: {
-      auto updates = static_cast<telegram_api::updatesCombined *>(updates_ptr);
-      td_->user_manager_->on_get_users(std::move(updates->users_), "updatesCombined 2");
-      td_->chat_manager_->on_get_chats(std::move(updates->chats_), "updatesCombined 2");
-      break;
-    }
-    case telegram_api::updates::ID: {
-      auto updates = static_cast<telegram_api::updates *>(updates_ptr);
-      td_->user_manager_->on_get_users(std::move(updates->users_), "updates 2");
-      td_->chat_manager_->on_get_chats(std::move(updates->chats_), "updates 2");
-      break;
-    }
-    default:
-      break;
-  }
-}
-
-string UpdatesManager::extract_join_group_call_presentation_params(telegram_api::Updates *updates_ptr) {
-  auto updates = get_updates(updates_ptr);
-  for (auto it = updates->begin(); it != updates->end(); ++it) {
-    auto *update = it->get();
-    if (update->get_id() == telegram_api::updateGroupCallConnection::ID &&
-        static_cast<const telegram_api::updateGroupCallConnection *>(update)->presentation_) {
-      string result = std::move(static_cast<telegram_api::updateGroupCallConnection *>(update)->params_->data_);
-      updates->erase(it);
-      return result;
-    }
-  }
-  return string();
-}
-
-telegram_api::object_ptr<telegram_api::StoryItem> UpdatesManager::extract_story(telegram_api::Updates *updates_ptr,
-                                                                                DialogId owner_dialog_id) {
-  auto updates = get_updates(updates_ptr);
-  if (updates->size() != 1u) {
-    return nullptr;
-  }
-  for (auto it = updates->begin(); it != updates->end(); ++it) {
-    auto *update_ptr = it->get();
-    if (update_ptr->get_id() == telegram_api::updateStory::ID) {
-      auto update = static_cast<telegram_api::updateStory *>(update_ptr);
-      if (DialogId(update->peer_) == owner_dialog_id) {
-        return std::move(update->story_);
-      }
-    }
-  }
-  return nullptr;
-}
-
-vector<DialogId> UpdatesManager::get_update_notify_settings_dialog_ids(const telegram_api::Updates *updates_ptr) {
-  vector<DialogId> dialog_ids;
-  auto updates = get_updates(updates_ptr);
-  if (updates != nullptr) {
-    dialog_ids.reserve(updates->size());
-    for (auto &update : *updates) {
-      DialogId dialog_id;
-      if (update->get_id() == telegram_api::updateNotifySettings::ID) {
-        auto notify_peer = static_cast<const telegram_api::updateNotifySettings *>(update.get())->peer_.get();
-        if (notify_peer->get_id() == telegram_api::notifyPeer::ID) {
-          dialog_id = DialogId(static_cast<const telegram_api::notifyPeer *>(notify_peer)->peer_);
-        }
-      }
-
-      if (dialog_id.is_valid()) {
-        dialog_ids.push_back(dialog_id);
-      } else {
-        LOG(ERROR) << "Receive unexpected " << to_string(update);
-      }
-    }
-  }
-  return dialog_ids;
-}
-
-vector<int32> UpdatesManager::get_update_ids(const telegram_api::Updates *updates_ptr) {
-  const vector<tl_object_ptr<telegram_api::Update>> *updates = nullptr;
-  auto updates_type = updates_ptr->get_id();
-  switch (updates_type) {
-    case telegram_api::updatesTooLong::ID:
-    case telegram_api::updateShortMessage::ID:
-    case telegram_api::updateShortChatMessage::ID:
-    case telegram_api::updateShortSentMessage::ID:
-      return {updates_type};
-    case telegram_api::updateShort::ID: {
-      const auto *update = static_cast<const telegram_api::updateShort *>(updates_ptr)->update_.get();
-      if (update != nullptr) {
-        return {update->get_id()};
-      }
-      return {updates_type};
-    }
-    case telegram_api::updatesCombined::ID:
-      updates = &static_cast<const telegram_api::updatesCombined *>(updates_ptr)->updates_;
-      break;
-    case telegram_api::updates::ID:
-      updates = &static_cast<const telegram_api::updates *>(updates_ptr)->updates_;
-      break;
-    default:
-      UNREACHABLE();
-  }
-
-  vector<int32> result;
-  result.reserve(updates->size());
-  for (auto &update : *updates) {
-    if (update != nullptr) {
-      result.push_back(update->get_id());
-    }
-  }
-  return result;
-}
-
-vector<DialogId> UpdatesManager::get_chat_dialog_ids(const telegram_api::Updates *updates_ptr) {
-  const vector<tl_object_ptr<telegram_api::Chat>> *chats = nullptr;
-  switch (updates_ptr->get_id()) {
-    case telegram_api::updatesTooLong::ID:
-    case telegram_api::updateShortMessage::ID:
-    case telegram_api::updateShortChatMessage::ID:
-    case telegram_api::updateShort::ID:
-    case telegram_api::updateShortSentMessage::ID:
-      LOG(ERROR) << "Receive " << oneline(to_string(*updates_ptr)) << " instead of updates";
-      break;
-    case telegram_api::updatesCombined::ID:
-      chats = &static_cast<const telegram_api::updatesCombined *>(updates_ptr)->chats_;
-      break;
-    case telegram_api::updates::ID:
-      chats = &static_cast<const telegram_api::updates *>(updates_ptr)->chats_;
-      break;
-    default:
-      UNREACHABLE();
-  }
-
-  if (chats == nullptr) {
-    return {};
-  }
-
-  vector<DialogId> dialog_ids;
-  dialog_ids.reserve(chats->size());
-  for (const auto &chat : *chats) {
-    auto dialog_id = ChatManager::get_dialog_id(chat);
-    if (dialog_id.is_valid()) {
-      dialog_ids.push_back(dialog_id);
-    } else {
-      LOG(ERROR) << "Can't find identifier of " << oneline(to_string(chat));
-    }
-  }
-  if (dialog_ids.size() > 1) {
-    td::remove(dialog_ids, DialogId(ChatManager::get_unsupported_channel_id()));
-  }
-  return dialog_ids;
-}
-
-int32 UpdatesManager::get_update_edit_message_pts(const telegram_api::Updates *updates_ptr,
-                                                  MessageFullId message_full_id) {
-  int32 pts = 0;
-  auto updates = get_updates(updates_ptr);
-  if (updates != nullptr) {
-    for (auto &update_ptr : *updates) {
-      int32 update_pts = [&] {
-        switch (update_ptr->get_id()) {
-          case telegram_api::updateEditMessage::ID: {
-            auto update = static_cast<const telegram_api::updateEditMessage *>(update_ptr.get());
-            if (MessageFullId::get_message_full_id(update->message_, false) == message_full_id) {
-              return update->pts_;
-            }
-            return 0;
-          }
-          case telegram_api::updateEditChannelMessage::ID: {
-            auto update = static_cast<const telegram_api::updateEditChannelMessage *>(update_ptr.get());
-            if (MessageFullId::get_message_full_id(update->message_, false) == message_full_id) {
-              return update->pts_;
-            }
-            return 0;
-          }
-          case telegram_api::updateNewScheduledMessage::ID: {
-            auto update = static_cast<const telegram_api::updateNewScheduledMessage *>(update_ptr.get());
-            auto new_message_full_id = MessageFullId::get_message_full_id(update->message_, true);
-            if (new_message_full_id.get_dialog_id() == message_full_id.get_dialog_id()) {
-              auto new_message_id = new_message_full_id.get_message_id();
-              auto old_message_id = message_full_id.get_message_id();
-              if (new_message_id.is_valid_scheduled() && new_message_id.is_scheduled_server() &&
-                  old_message_id.is_valid_scheduled() && old_message_id.is_scheduled_server() &&
-                  old_message_id.get_scheduled_server_message_id() ==
-                      new_message_id.get_scheduled_server_message_id()) {
-                return -2;
-              }
-            }
-            return 0;
-          }
-          default:
-            return 0;
-        }
-      }();
-      if (update_pts != 0) {
-        if (pts == 0) {
-          pts = update_pts;
-        } else {
-          pts = -1;
-        }
-      }
-    }
-  }
-  if (pts == -1) {
-    LOG(ERROR) << "Receive multiple edit message updates in " << to_string(*updates_ptr);
-    pts = 0;
-  } else if (pts == 0) {
-    LOG(ERROR) << "Receive no edit message updates for " << message_full_id << " in " << to_string(*updates_ptr);
-  }
-  return pts;
-}
-
-void UpdatesManager::init_state() {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-
-  bool drop_state = get_pts() == -1 && td_->can_ignore_background_updates() && td_->auth_manager_->is_bot() &&
-                    td_->option_manager_->get_option_integer("since_last_open") >= 2 * 86400;
-
-  auto pmc = G()->td_db()->get_binlog_pmc();
-  if (td_->ignore_background_updates() || drop_state) {
-    // just in case
-    pmc->erase("updates.pts");
-    pmc->erase("updates.qts");
-    pmc->erase("updates.date");
-  }
-  string pts_str = pmc->get("updates.pts");
-  if (pts_str.empty()) {
-    if (!running_get_difference_) {
-      running_get_difference_ = true;
-
-      before_get_difference(true);
-
-      auto promise = PromiseCreator::lambda([](Result<tl_object_ptr<telegram_api::updates_state>> result) {
-        if (result.is_ok()) {
-          send_closure(G()->updates_manager(), &UpdatesManager::on_get_updates_state, result.move_as_ok(),
-                       "GetUpdatesStateQuery");
-        } else {
-          send_closure(G()->updates_manager(), &UpdatesManager::on_failed_get_updates_state, result.move_as_error());
-        }
-      });
-      td_->create_handler<GetUpdatesStateQuery>(std::move(promise))->send();
-    }
-    return;
-  }
-  pts_manager_.init(to_integer<int32>(pts_str));
-  last_confirmed_pts_ = get_pts();
-  qts_manager_.init(to_integer<int32>(pmc->get("updates.qts")));
-  last_confirmed_qts_ = get_qts();
-  date_ = to_integer<int32>(pmc->get("updates.date"));
-  date_source_ = "database";
-  LOG(DEBUG) << "Init: " << get_pts() << " " << get_qts() << " " << date_;
-
-  get_difference("init_state");
-}
-
-uint64 UpdatesManager::get_most_unused_auth_key_id() {
-  uint64 min_auth_key_id = 0;
-  double min_time = Time::now();
-  for (auto &it : session_infos_) {
-    if (it.second.last_update_time < min_time) {
-      min_time = it.second.last_update_time;
-      min_auth_key_id = it.first;
-    }
-  }
-  return min_auth_key_id;
-}
-
-void UpdatesManager::on_update_from_auth_key_id(uint64 auth_key_id) {
-  if (auth_key_id == 0) {
-    return;
-  }
-
-  auto &info = session_infos_[auth_key_id];
-  auto now = Time::now();
-  info.last_update_time = now;
-  if (info.update_count++ == 0) {
-    info.first_update_time = now;
-    while (session_infos_.size() >
-           static_cast<size_t>(max(narrow_cast<int32>(G()->get_option_integer("session_count")), 1))) {
-      auto unused_auth_key_id = get_most_unused_auth_key_id();
-      LOG(INFO) << "Delete statistics for auth key " << unused_auth_key_id;
-      session_infos_.erase(unused_auth_key_id);
-    }
-  }
-}
-
-void UpdatesManager::ping_server() {
-  if (is_ping_sent_) {
-    return;
-  }
-  is_ping_sent_ = true;
-  auto promise = PromiseCreator::lambda([](Result<tl_object_ptr<telegram_api::updates_state>> result) {
-    auto state = result.is_ok() ? result.move_as_ok() : nullptr;
-    send_closure(G()->updates_manager(), &UpdatesManager::on_server_pong, std::move(state));
-  });
-  td_->create_handler<PingServerQuery>(std::move(promise))->send();
-}
-
-void UpdatesManager::on_server_pong(tl_object_ptr<telegram_api::updates_state> &&state) {
-  LOG(INFO) << "Receive " << oneline(to_string(state));
-  is_ping_sent_ = false;
-  if (state == nullptr || state->pts_ > get_pts() || state->seq_ > seq_) {
-    get_difference("on server pong");
-  }
-}
-
-void UpdatesManager::notify_speed_limited(bool is_upload) {
-  if (Time::now() < next_notify_speed_limited_[is_upload]) {
-    return;
-  }
-  next_notify_speed_limited_[is_upload] =
-      Time::now() +
-      static_cast<double>(td_->option_manager_->get_option_integer("upload_premium_speedup_notify_period"));
-  send_closure(G()->td(), &Td::send_update, td_api::make_object<td_api::updateSpeedLimitNotification>(is_upload));
-}
-
-void UpdatesManager::process_get_difference_updates(
-    vector<tl_object_ptr<telegram_api::Message>> &&new_messages,
-    vector<tl_object_ptr<telegram_api::EncryptedMessage>> &&new_encrypted_messages,
-    vector<tl_object_ptr<telegram_api::Update>> &&other_updates) {
-  VLOG(get_difference) << "In get difference receive " << new_messages.size() << " messages, "
-                       << new_encrypted_messages.size() << " encrypted messages and " << other_updates.size()
-                       << " other updates";
-  for (auto &update : other_updates) {
-    auto constructor_id = update->get_id();
-    if (constructor_id == telegram_api::updateMessageID::ID) {
-      // in getDifference updateMessageID can't be received for scheduled messages
-      LOG(INFO) << "Receive update about sent message " << to_string(update);
-      auto update_message_id = move_tl_object_as<telegram_api::updateMessageID>(update);
-      td_->messages_manager_->on_update_message_id(update_message_id->random_id_,
-                                                   MessageId(ServerMessageId(update_message_id->id_)), "getDifference");
-      CHECK(!running_get_difference_);
-    }
-
-    if (constructor_id == telegram_api::updateStoryID::ID) {
-      LOG(INFO) << "Receive update about sent story " << to_string(update);
-      auto update_story_id = move_tl_object_as<telegram_api::updateStoryID>(update);
-      td_->story_manager_->on_update_story_id(update_story_id->random_id_, StoryId(update_story_id->id_),
-                                              "getDifference");
-      CHECK(!running_get_difference_);
-    }
-
-    if (constructor_id == telegram_api::updateEncryption::ID) {
-      on_update(move_tl_object_as<telegram_api::updateEncryption>(update), Promise<Unit>());
-      CHECK(!running_get_difference_);
-    }
-
-    if (constructor_id == telegram_api::updateFolderPeers::ID) {
-      auto update_folder_peers = move_tl_object_as<telegram_api::updateFolderPeers>(update);
-      if (update_folder_peers->pts_count_ != 0) {
-        LOG(ERROR) << "Receive updateFolderPeers with pts_count = " << update_folder_peers->pts_count_;
-        update_folder_peers->pts_count_ = 0;
-      }
-      update_folder_peers->pts_ = 0;
-      on_update(std::move(update_folder_peers), Promise<Unit>());
-      CHECK(!running_get_difference_);
-    }
-
-    if (constructor_id == telegram_api::updateUser::ID) {
-      update = nullptr;
-    }
-
-    if (constructor_id == telegram_api::updateChat::ID) {
-      update = nullptr;
-    }
-
-    if (constructor_id == telegram_api::updateChannel::ID) {
-      update = nullptr;
-    }
-
-    /*
-        // TODO can't apply it here, because dialog may not be created yet
-        // process updateReadHistoryInbox before new messages
-        if (constructor_id == telegram_api::updateReadHistoryInbox::ID) {
-          static_cast<telegram_api::updateReadHistoryInbox *>(update.get())->still_unread_count_ = -1;
-          process_pts_update(std::move(update));
-          CHECK(!running_get_difference_);
-        }
-    */
-  }
-
-  for (auto &message : new_messages) {
-    // channel messages must not be received in this vector
-    td_->messages_manager_->on_get_message(std::move(message), true, false, false, "get difference");
-    CHECK(!running_get_difference_);
-  }
-
-  for (auto &encrypted_message : new_encrypted_messages) {
-    send_closure(td_->secret_chats_manager_, &SecretChatsManager::on_new_message, std::move(encrypted_message),
-                 Promise<Unit>());
-  }
-
-  process_updates(std::move(other_updates), true, Promise<Unit>());
-}
-
-void UpdatesManager::on_get_difference(tl_object_ptr<telegram_api::updates_Difference> &&difference_ptr) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-
-  VLOG(get_difference) << "----- END  GET DIFFERENCE-----";
-  running_get_difference_ = false;
-
-  LOG(DEBUG) << "Result of get difference: " << to_string(difference_ptr);
-
-  CHECK(difference_ptr != nullptr);
-  switch (difference_ptr->get_id()) {
-    case telegram_api::updates_differenceEmpty::ID: {
-      auto difference = move_tl_object_as<telegram_api::updates_differenceEmpty>(difference_ptr);
-      set_date(difference->date_, false, "on_get_difference_empty");
-      seq_ = difference->seq_;
-
-      process_pending_qts_updates();
-      if (!pending_qts_updates_.empty()) {
-        LOG(WARNING) << "Drop " << pending_qts_updates_.size() << " pending QTS updates after receive empty difference";
-        auto pending_qts_updates = std::move(pending_qts_updates_);
-        pending_qts_updates_.clear();
-
-        for (auto &pending_update : pending_qts_updates) {
-          set_promises(pending_update.second.promises);
-        }
-      }
-
-      process_pending_seq_updates();
-      if (!pending_seq_updates_.empty()) {
-        LOG(WARNING) << "Drop " << pending_seq_updates_.size() << " pending seq updates after receive empty difference";
-        auto pending_seq_updates = std::move(pending_seq_updates_);
-        pending_seq_updates_.clear();
-
-        for (auto &pending_update : pending_seq_updates) {
-          pending_update.promise.set_value(Unit());
-        }
-      }
-      break;
-    }
-    case telegram_api::updates_difference::ID: {
-      auto difference = move_tl_object_as<telegram_api::updates_difference>(difference_ptr);
-      VLOG(get_difference) << "In get difference receive " << difference->users_.size() << " users and "
-                           << difference->chats_.size() << " chats";
-      td_->user_manager_->on_get_users(std::move(difference->users_), "updates.difference");
-      td_->chat_manager_->on_get_chats(std::move(difference->chats_), "updates.difference");
-
-      if (get_difference_retry_count_ <= 5) {
-        for (const auto &message : difference->new_messages_) {
-          if (MessagesManager::is_invalid_poll_message(message.get())) {
-            get_difference_retry_count_++;
-            LOG(ERROR) << "Receive invalid poll message in updates.difference after " << get_difference_retry_count_
-                       << " tries";
-            return run_get_difference(true, "reget difference");
-          }
-        }
-      }
-
-      process_get_difference_updates(std::move(difference->new_messages_),
-                                     std::move(difference->new_encrypted_messages_),
-                                     std::move(difference->other_updates_));
-      if (running_get_difference_) {
-        LOG(ERROR) << "Get difference has run while processing get difference updates";
-        break;
-      }
-
-      on_get_updates_state(std::move(difference->state_), "get difference");
-      break;
-    }
-    case telegram_api::updates_differenceSlice::ID: {
-      auto difference = move_tl_object_as<telegram_api::updates_differenceSlice>(difference_ptr);
-      bool is_pts_changed = have_update_pts_changed(difference->other_updates_);
-      if (difference->intermediate_state_->pts_ >= get_pts() && get_pts() != std::numeric_limits<int32>::max() &&
-          difference->intermediate_state_->date_ >= date_ && difference->intermediate_state_->qts_ == get_qts() &&
-          !is_pts_changed) {
-        // TODO send new getDifference request and apply difference slice only after that
-      }
-
-      VLOG(get_difference) << "In get difference receive " << difference->users_.size() << " users and "
-                           << difference->chats_.size() << " chats";
-      td_->user_manager_->on_get_users(std::move(difference->users_), "updates.differenceSlice");
-      td_->chat_manager_->on_get_chats(std::move(difference->chats_), "updates.differenceSlice");
-
-      if (get_difference_retry_count_ <= 5) {
-        for (const auto &message : difference->new_messages_) {
-          if (MessagesManager::is_invalid_poll_message(message.get())) {
-            get_difference_retry_count_++;
-            LOG(ERROR) << "Receive invalid poll message in updates.differenceSlice after "
-                       << get_difference_retry_count_ << " tries";
-            return run_get_difference(true, "reget difference");
-          }
-        }
-      }
-
-      process_get_difference_updates(std::move(difference->new_messages_),
-                                     std::move(difference->new_encrypted_messages_),
-                                     std::move(difference->other_updates_));
-      if (running_get_difference_) {
-        if (!is_pts_changed) {
-          LOG(ERROR) << "Get difference has run while processing get difference updates";
-        }
-        break;
-      }
-      CHECK(!is_pts_changed);
-
-      auto old_pts = get_pts();
-      auto old_date = get_date();
-      auto old_qts = get_qts();
-      on_get_updates_state(std::move(difference->intermediate_state_), "get difference slice");
-
-      process_postponed_pts_updates();
-      process_pending_qts_updates();
-
-      auto new_pts = get_pts();
-      auto new_date = get_date();
-      auto new_qts = get_qts();
-      if (old_pts != std::numeric_limits<int32>::max() && new_date == old_date &&
-          (new_pts == old_pts || (min_postponed_update_pts_ != 0 && new_pts >= min_postponed_update_pts_)) &&
-          (new_qts == old_qts || (min_postponed_update_qts_ != 0 && new_qts >= min_postponed_update_qts_))) {
-        VLOG(get_difference) << "Switch back from getDifference to update processing";
-        break;
-      }
-
-      if (new_pts != -1) {  // just in case
-        run_get_difference(true, "on updates_differenceSlice");
-      }
-      break;
-    }
-    case telegram_api::updates_differenceTooLong::ID: {
-      if (td_->option_manager_->get_option_integer("session_count") <= 1) {
-        LOG(ERROR) << "Receive differenceTooLong";
-      }
-      // TODO
-      auto difference = move_tl_object_as<telegram_api::updates_differenceTooLong>(difference_ptr);
-      set_pts(difference->pts_, "differenceTooLong").set_value(Unit());
-      get_difference("on updates_differenceTooLong");
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  get_difference_retry_count_ = 0;
-
-  if (!running_get_difference_) {
-    after_get_difference();
-  }
-}
-
-void UpdatesManager::on_get_pts_update(int32 pts,
-                                       telegram_api::object_ptr<telegram_api::updates_Difference> difference_ptr) {
-  if (G()->close_flag() || !td_->auth_manager_->is_authorized()) {
-    return;
-  }
-  LOG(DEBUG) << "Receive update with PTS " << pts << ": " << to_string(difference_ptr);
-  if (get_pts() != pts - 1 || running_get_difference_ || !postponed_pts_updates_.empty() ||
-      pending_pts_updates_.empty() || pending_pts_updates_.begin()->pts > pts + 1 ||
-      pending_pts_updates_.begin()->pts != pts + pending_pts_updates_.begin()->pts_count) {
-    return;
-  }
-
-  switch (difference_ptr->get_id()) {
-    case telegram_api::updates_difference::ID: {
-      auto difference = move_tl_object_as<telegram_api::updates_difference>(difference_ptr);
-      difference_ptr = telegram_api::make_object<telegram_api::updates_differenceSlice>(
-          std::move(difference->new_messages_), std::move(difference->new_encrypted_messages_),
-          std::move(difference->other_updates_), std::move(difference->chats_), std::move(difference->users_),
-          std::move(difference->state_));
-    }
-    // fallthrough
-    case telegram_api::updates_differenceSlice::ID: {
-      auto difference = move_tl_object_as<telegram_api::updates_differenceSlice>(difference_ptr);
-
-      if (have_update_pts_changed(difference->other_updates_)) {
-        return;
-      }
-
-      td_->user_manager_->on_get_users(std::move(difference->users_), "on_get_pts_update");
-      td_->chat_manager_->on_get_chats(std::move(difference->chats_), "on_get_pts_update");
-
-      for (auto &message : difference->new_messages_) {
-        difference->other_updates_.push_back(
-            telegram_api::make_object<telegram_api::updateNewMessage>(std::move(message), pts, 1));
-      }
-      telegram_api::object_ptr<telegram_api::Update> *update_ptr = nullptr;
-      size_t update_count = 0;
-      for (auto &update : difference->other_updates_) {
-        auto constructor_id = update->get_id();
-        if (constructor_id == telegram_api::updateMessageID::ID) {
-          // in getDifference updateMessageID can't be received for scheduled messages
-          LOG(INFO) << "Receive update about sent message " << to_string(update);
-          auto update_message_id = move_tl_object_as<telegram_api::updateMessageID>(update);
-          td_->messages_manager_->on_update_message_id(
-              update_message_id->random_id_, MessageId(ServerMessageId(update_message_id->id_)), "on_get_pts_update");
-          continue;
-        }
-        if (constructor_id == telegram_api::updateDeleteMessages::ID) {
-          auto *update_delete_messages = static_cast<const telegram_api::updateDeleteMessages *>(update.get());
-          if (update_delete_messages->pts_count_ != 0 || update_delete_messages->messages_.size() != 1) {
-            LOG(ERROR) << "Receive in getDifference " << to_string(update);
-          }
-        }
-
-        update_ptr = &update;
-        update_count++;
-      }
-
-      if (!difference->new_encrypted_messages_.empty() || update_count != 1) {
-        LOG(ERROR) << "Receive unexpected updates with PTS " << pts << ": " << to_string(difference);
-        break;
-      }
-
-      CHECK(update_ptr != nullptr);
-      VLOG(get_difference) << "Repair update with PTS " << pts;
-      pts_fixed_short_gap_++;
-      add_pending_pts_update(std::move(*update_ptr), pts, 1, Time::now(), Promise<Unit>(), "on_get_pts_update");
-      break;
-    }
-    case telegram_api::updates_differenceEmpty::ID:
-    case telegram_api::updates_differenceTooLong::ID: {
-      LOG(ERROR) << "Receive " << oneline(to_string(difference_ptr)) << " for request with PTS = " << pts - 1
-                 << ", but have pending " << oneline(to_string(pending_pts_updates_.begin()->update))
-                 << " with PTS = " << pending_pts_updates_.begin()->pts;
-      break;
-      default:
-        UNREACHABLE();
-    }
-  }
-}
-
-void UpdatesManager::confirm_pts_qts(int32 qts) {
-  int32 pts = get_pts();
-  if (pts < 0) {
-    pts = 0;
-  }
-
-  td_->create_handler<ConfirmPtsQtsQuery>()->send(pts, qts);
-
-  last_confirmed_pts_ = pts;
-  last_confirmed_qts_ = qts;
-}
-
-void UpdatesManager::after_get_difference() {
-  CHECK(!running_get_difference_);
-
-  retry_timeout_.cancel_timeout();
-  retry_time_ = 1;
-
-  skipped_postponed_updates_after_start_ = 0;
-  td_->option_manager_->set_option_empty("since_last_open");
-
-  // cancels qts_gap_timeout_ if needed, can apply some updates received during getDifference,
-  // but missed in getDifference
-  process_pending_qts_updates();
-
-  // cancels seq_gap_timeout_ if needed, can apply some updates received during getDifference,
-  // but missed in getDifference
-  process_pending_seq_updates();
-
-  if (running_get_difference_) {
-    return;
-  }
-
-  if (!postponed_updates_.empty()) {
-    auto begin_time = Time::now();
-    auto chunk_count = postponed_updates_.size();
-    VLOG(get_difference) << "Begin to apply " << chunk_count << " postponed update chunks";
-    size_t total_update_count = 0;
-    while (!postponed_updates_.empty()) {
-      auto it = postponed_updates_.begin();
-      auto updates = std::move(it->updates);
-      auto updates_seq_begin = it->seq_begin;
-      auto updates_seq_end = it->seq_end;
-      auto receive_time = it->receive_time;
-      auto promise = std::move(it->promise);
-      // ignore it->date, because it may be too old
-      postponed_updates_.erase(it);
-      auto update_count = updates.size();
-      on_pending_updates(std::move(updates), updates_seq_begin, updates_seq_end, 0, receive_time, std::move(promise),
-                         "postponed updates");
-      if (running_get_difference_) {
-        VLOG(get_difference) << "Finish to apply postponed updates with " << postponed_updates_.size()
-                             << " updates left after applied " << total_update_count
-                             << " updates, because forced to run getDifference";
-        return;
-      }
-      total_update_count += update_count;
-    }
-    VLOG(get_difference) << "Finished to apply " << total_update_count << " postponed updates";
-    auto passed_time = Time::now() - begin_time;
-    if (passed_time >= UPDATE_APPLY_WARNING_TIME) {
-      LOG(WARNING) << "Applied " << total_update_count << " updates in " << chunk_count << " chunks in " << passed_time
-                   << " seconds after postponing them for " << (Time::now() - get_difference_start_time_) << " seconds";
-    }
-  }
-
-  if (!postponed_pts_updates_.empty()) {  // must be before td_->messages_manager_->after_get_difference()
-    auto postponed_updates = std::move(postponed_pts_updates_);
-    postponed_pts_updates_.clear();
-
-    auto begin_time = Time::now();
-    auto update_count = postponed_updates.size();
-    auto old_pts = get_pts();
-    VLOG(get_difference) << "Begin to apply " << postponed_updates.size()
-                         << " postponed PTS updates with PTS = " << get_pts();
-    for (auto &postponed_update : postponed_updates) {
-      auto &update = postponed_update;
-      add_pending_pts_update(std::move(update.update), update.pts, update.pts_count, update.receive_time,
-                             std::move(update.promise), AFTER_GET_DIFFERENCE_SOURCE);
-      CHECK(!running_get_difference_);
-    }
-    VLOG(get_difference) << "After applying postponed PTS updates have PTS = " << get_pts()
-                         << ", max_pts = " << accumulated_pts_ << " and " << pending_pts_updates_.size() << " + "
-                         << postponed_pts_updates_.size() << " pending PTS updates";
-    auto passed_time = Time::now() - begin_time;
-    if (passed_time >= UPDATE_APPLY_WARNING_TIME) {
-      LOG(WARNING) << "Updated PTS from " << old_pts << " to " << get_pts() << " and applied " << update_count
-                   << " PTS updates in " << passed_time << " seconds after postponing them for "
-                   << (Time::now() - get_difference_start_time_) << " seconds";
-    }
-  }
-
-  send_closure(td_->download_manager_actor_, &DownloadManager::after_get_difference);
-  td_->inline_queries_manager_->after_get_difference();
-  td_->messages_manager_->after_get_difference();
-  send_closure_later(td_->notification_manager_actor_, &NotificationManager::after_get_difference);
-  send_closure(G()->state_manager(), &StateManager::on_synchronized, true);
-  get_difference_start_time_ = 0.0;
-
-  try_reload_data();
-}
-
-void UpdatesManager::schedule_data_reload() {
-  if (data_reload_timeout_.has_timeout()) {
-    return;
-  }
-
-  auto timeout = next_data_reload_time_ - Time::now();
-  LOG(INFO) << "Schedule data reload in " << timeout;
-  data_reload_timeout_.set_callback(std::move(try_reload_data_static));
-  data_reload_timeout_.set_callback_data(static_cast<void *>(td_));
-  data_reload_timeout_.set_timeout_in(timeout);
-}
-
-void UpdatesManager::try_reload_data_static(void *td) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(td != nullptr);
-  static_cast<Td *>(td)->updates_manager_->try_reload_data();
-}
-
-void UpdatesManager::try_reload_data() {
-  if (!td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot() || running_get_difference_ ||
-      !td_->online_manager_->is_online()) {
-    return;
-  }
-
-  auto now = Time::now();
-  if (now < next_data_reload_time_) {
-    schedule_data_reload();
-    return;
-  }
-  next_data_reload_time_ = now + 365 * 86400;
-
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this)](Result<td_api::object_ptr<td_api::chats>>) {
-    send_closure(actor_id, &UpdatesManager::on_data_reloaded);
-  });
-
-  LOG(INFO) << "Reload data";
-  td_->animations_manager_->reload_saved_animations(true);
-  td_->autosave_manager_->reload_autosave_settings();
-  td_->chat_manager_->reload_created_public_dialogs(PublicDialogType::HasUsername, std::move(promise));
-  td_->chat_manager_->reload_created_public_dialogs(PublicDialogType::IsLocationBased, Auto());
-  td_->chat_manager_->reload_created_public_dialogs(PublicDialogType::ForPersonalDialog, Auto());
-  get_default_emoji_statuses(td_, Auto());
-  get_default_channel_emoji_statuses(td_, Auto());
-  get_recent_emoji_statuses(td_, Auto());
-  get_upgraded_gift_emoji_statuses(td_, Auto());
-  reload_paid_reaction_privacy(td_);
-  td_->notification_settings_manager_->reload_saved_ringtones(Auto());
-  td_->notification_settings_manager_->send_get_reaction_notification_settings_query(Auto());
-  td_->notification_settings_manager_->send_get_scope_notification_settings_query(NotificationSettingsScope::Private,
-                                                                                  Auto());
-  td_->notification_settings_manager_->send_get_scope_notification_settings_query(NotificationSettingsScope::Group,
-                                                                                  Auto());
-  td_->notification_settings_manager_->send_get_scope_notification_settings_query(NotificationSettingsScope::Channel,
-                                                                                  Auto());
-  td_->quick_reply_manager_->reload_quick_reply_shortcuts();
-  td_->reaction_manager_->reload_reactions();
-  td_->reaction_manager_->reload_message_effects();
-  for (int32 type = 0; type < MAX_REACTION_LIST_TYPE; type++) {
-    auto reaction_list_type = static_cast<ReactionListType>(type);
-    td_->reaction_manager_->reload_reaction_list(reaction_list_type, "try_reload_data");
-  }
-  td_->star_manager_->reload_owned_star_count();
-  for (int32 type = 0; type < MAX_STICKER_TYPE; type++) {
-    auto sticker_type = static_cast<StickerType>(type);
-    td_->stickers_manager_->get_installed_sticker_sets(sticker_type, Auto());
-    td_->stickers_manager_->get_featured_sticker_sets(sticker_type, 0, 1000, Auto());
-  }
-  td_->stickers_manager_->get_recent_stickers(false, Auto());
-  td_->stickers_manager_->get_recent_stickers(true, Auto());
-  td_->stickers_manager_->get_favorite_stickers(Auto());
-  td_->stickers_manager_->reload_special_sticker_set_by_type(SpecialStickerSetType::animated_emoji());
-  td_->stickers_manager_->reload_special_sticker_set_by_type(SpecialStickerSetType::animated_emoji_click());
-  td_->stickers_manager_->reload_special_sticker_set_by_type(SpecialStickerSetType::premium_gifts());
-  td_->stickers_manager_->reload_special_sticker_set_by_type(SpecialStickerSetType::generic_animations());
-  td_->stickers_manager_->reload_special_sticker_set_by_type(SpecialStickerSetType::default_statuses());
-  td_->stickers_manager_->reload_special_sticker_set_by_type(SpecialStickerSetType::default_channel_statuses());
-  td_->stickers_manager_->reload_special_sticker_set_by_type(SpecialStickerSetType::default_topic_icons());
-  td_->stickers_manager_->get_default_custom_emoji_stickers(StickerListType::DialogPhoto, true, Auto());
-  td_->stickers_manager_->get_default_custom_emoji_stickers(StickerListType::UserProfilePhoto, true, Auto());
-  td_->stickers_manager_->get_default_custom_emoji_stickers(StickerListType::Background, true, Auto());
-  td_->stickers_manager_->get_sticker_list_emoji_statuses(StickerListType::DisallowedChannelEmojiStatus, true, Auto());
-  td_->story_manager_->reload_active_stories();
-  td_->story_manager_->reload_all_read_stories();
-  td_->theme_manager_->reload_accent_colors();
-  td_->theme_manager_->reload_chat_themes();
-  td_->theme_manager_->reload_profile_accent_colors();
-  td_->time_zone_manager_->reload_time_zones(Auto());
-  td_->user_manager_->reload_contact_birthdates(false);
-
-  schedule_data_reload();
-}
-
-void UpdatesManager::on_data_reloaded() {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  next_data_reload_time_ = Time::now() + Random::fast(3000, 4200);
-  data_reload_timeout_.cancel_timeout();
-  schedule_data_reload();
-}
-
-void UpdatesManager::on_pending_updates(vector<tl_object_ptr<telegram_api::Update>> &&updates, int32 seq_begin,
-                                        int32 seq_end, int32 date, double receive_time, Promise<Unit> &&promise,
-                                        const char *source) {
-  if (get_pts() == -1) {
-    init_state();
-  }
-
-  if (!td_->auth_manager_->is_authorized()) {
-    LOG(INFO) << "Ignore updates received before authorization or after logout";
-    return promise.set_value(Unit());
-  }
-
-  //  for (auto &update : updates) {
-  //    LOG(WARNING) << "Receive update " << to_string(update.get());
-  //  }
-
-  if (seq_begin < 0 || seq_end < 0 || date < 0 || seq_end < seq_begin) {
-    LOG(ERROR) << "Wrong updates parameters seq_begin = " << seq_begin << ", seq_end = " << seq_end
-               << ", date = " << date << " from " << source;
-    get_difference("on wrong updates in on_pending_updates");
-    return promise.set_value(Unit());
-  }
-
-  for (auto &update : updates) {
-    if (update != nullptr) {
-      switch (update->get_id()) {
-        case telegram_api::updateUserTyping::ID:
-        case telegram_api::updateChatUserTyping::ID:
-        case telegram_api::updateChannelUserTyping::ID:
-        case telegram_api::updateEncryptedChatTyping::ID:
-        case telegram_api::updateLoginToken::ID:
-        case telegram_api::updateDcOptions::ID:
-        case telegram_api::updateConfig::ID:
-        case telegram_api::updateServiceNotification::ID:
-        case telegram_api::updateLangPackTooLong::ID:
-        case telegram_api::updateLangPack::ID:
-          short_update_date_ = date == 0 ? G()->unix_time() : date;
-          LOG(INFO) << "Process short " << oneline(to_string(update));
-          // don't need promise for short update
-          downcast_call(*update, OnUpdate(this, update, Promise<Unit>()));
-          short_update_date_ = 0;
-          update = nullptr;
-          break;
-        default:
-          break;
-      }
-    }
-  }
-
-  bool need_postpone = running_get_difference_ /*|| string(source) != string("postponed updates")*/;
-  bool can_postpone = can_postpone_updates();
-  if (!need_postpone) {
-    for (auto &update : updates) {
-      if (!is_acceptable_update(update.get())) {
-        CHECK(update != nullptr);
-        int32 id = update->get_id();
-        const tl_object_ptr<telegram_api::Message> *message_ptr = nullptr;
-        int32 pts = 0;
-        if (id == telegram_api::updateNewChannelMessage::ID) {
-          auto update_new_channel_message = static_cast<const telegram_api::updateNewChannelMessage *>(update.get());
-          message_ptr = &update_new_channel_message->message_;
-          pts = update_new_channel_message->pts_;
-        }
-        if (id == telegram_api::updateEditChannelMessage::ID) {
-          auto update_edit_channel_message = static_cast<const telegram_api::updateEditChannelMessage *>(update.get());
-          message_ptr = &update_edit_channel_message->message_;
-          pts = update_edit_channel_message->pts_;
-        }
-
-        // for channels we can try to replace unacceptable update with updateChannelTooLong
-        if (message_ptr != nullptr) {
-          auto dialog_id = DialogId::get_message_dialog_id(*message_ptr);
-          if (dialog_id.get_type() == DialogType::Channel) {
-            auto channel_id = dialog_id.get_channel_id();
-            if (td_->chat_manager_->have_channel_force(channel_id, source)) {
-              if (td_->messages_manager_->is_old_channel_update(dialog_id, pts)) {
-                // the update will be ignored anyway, so there is no reason to replace it or force get_difference
-                LOG(INFO) << "Allow an outdated unacceptable update from " << source;
-                continue;
-              }
-              if ((*message_ptr)->get_id() != telegram_api::messageService::ID) {
-                // don't replace service messages, because they can be about bot's kicking
-                LOG(INFO) << "Replace update about new message with updateChannelTooLong in " << dialog_id;
-                update = telegram_api::make_object<telegram_api::updateChannelTooLong>(
-                    telegram_api::updateChannelTooLong::PTS_MASK, channel_id.get(), pts);
-                continue;
-              }
-            }
-          } else {
-            LOG(ERROR) << "Update is not from a channel: " << to_string(update);
-          }
-        }
-
-        get_difference("on unacceptable updates in on_pending_updates");
-        return promise.set_value(Unit());
-      }
-    }
-  }
-
-  if (date > 0 && updates.size() == 1 && updates[0] != nullptr &&
-      updates[0]->get_id() == telegram_api::updateReadHistoryOutbox::ID) {
-    auto update = static_cast<const telegram_api::updateReadHistoryOutbox *>(updates[0].get());
-    DialogId dialog_id(update->peer_);
-    if (dialog_id.get_type() == DialogType::User) {
-      auto user_id = dialog_id.get_user_id();
-      if (user_id.is_valid()) {
-        td_->user_manager_->on_update_user_local_was_online(user_id, date);
-      }
-    }
-  }
-
-  size_t ordinary_new_message_count = 0;
-  size_t scheduled_new_message_count = 0;
-  size_t update_message_id_count = 0;
-  size_t update_count = 0;
-  for (auto &update : updates) {
-    if (update != nullptr) {
-      auto constructor_id = update->get_id();
-      if (constructor_id == telegram_api::updateMessageID::ID) {
-        update_message_id_count++;
-      } else {
-        update_count++;
-        if (constructor_id == telegram_api::updateNewMessage::ID ||
-            constructor_id == telegram_api::updateNewChannelMessage::ID) {
-          ordinary_new_message_count++;
-        } else if (constructor_id == telegram_api::updateNewScheduledMessage::ID) {
-          scheduled_new_message_count++;
-        }
-      }
-    }
-  }
-
-  if (update_message_id_count != 0 && ordinary_new_message_count != 0 && scheduled_new_message_count != 0) {
-    LOG(ERROR) << "Receive mixed message types in updates:";
-    for (auto &update : updates) {
-      LOG(ERROR) << "Update: " << oneline(to_string(update));
-    }
-    if (!running_get_difference_) {
-      schedule_get_difference("on_get_wrong_updates");
-    }
-    return promise.set_value(Unit());
-  }
-
-  MultiPromiseActorSafe mpas{"OnPendingUpdatesMultiPromiseActor"};
-  Promise<Unit> lock;
-  auto use_mpas = need_postpone || update_count != 1;
-  auto get_promise = [&] {
-    if (use_mpas) {
-      return mpas.get_promise();
-    } else {
-      CHECK(update_count != 0);
-      update_count--;
-      return std::move(promise);
-    }
-  };
-  if (use_mpas) {
-    being_processed_updates_++;
-    mpas.add_promise([actor_id = create_reference(), promise = std::move(promise)](Result<Unit> &&result) mutable {
-      send_closure(actor_id, &UpdatesManager::on_pending_updates_processed, std::move(result), std::move(promise));
-    });
-    lock = get_promise();
-  }
-  SCOPE_EXIT {
-    if (!use_mpas && update_count == 1) {
-      promise.set_value(Unit());
-    }
-  };
-
-  for (auto &update : updates) {
-    if (update != nullptr) {
-      LOG(INFO) << "Receive from " << source << " pending " << to_string(update);
-      int32 id = update->get_id();
-      if (id == telegram_api::updateMessageID::ID) {
-        auto sent_message_update = move_tl_object_as<telegram_api::updateMessageID>(update);
-        MessageId message_id;
-        if (ordinary_new_message_count != 0) {
-          message_id = MessageId(ServerMessageId(sent_message_update->id_));
-        } else if (scheduled_new_message_count != 0) {
-          message_id = MessageId(ScheduledServerMessageId(sent_message_update->id_), std::numeric_limits<int32>::max());
-        }
-        if (!td_->messages_manager_->on_update_message_id(sent_message_update->random_id_, message_id, source)) {
-          for (auto &debug_update : updates) {
-            LOG(ERROR) << "Update: " << oneline(to_string(debug_update));
-          }
-        }
-        update = nullptr;
-      }
-      if (id == telegram_api::updateStoryID::ID) {
-        auto update_story_id = move_tl_object_as<telegram_api::updateStoryID>(update);
-        td_->story_manager_->on_update_story_id(update_story_id->random_id_, StoryId(update_story_id->id_), source);
-        update = nullptr;
-      }
-      if (id == telegram_api::updateFolderPeers::ID) {
-        on_update(move_tl_object_as<telegram_api::updateFolderPeers>(update), get_promise());
-        update = nullptr;
-      }
-      if (id == telegram_api::updateEncryption::ID) {
-        on_update(move_tl_object_as<telegram_api::updateEncryption>(update), get_promise());
-        update = nullptr;
-      }
-      // check that if getDifference wasn't run than it isn't run still
-      CHECK(need_postpone || !running_get_difference_);
-    }
-  }
-
-  for (auto &update : updates) {
-    if (update != nullptr) {
-      if (is_pts_update(update.get())) {
-        if (running_get_difference_ && can_postpone) {
-          auto pts = get_update_pts(update.get());
-          if (pts != 0 && (min_postponed_update_pts_ == 0 || pts < min_postponed_update_pts_)) {
-            min_postponed_update_pts_ = pts;
-          }
-        }
-        downcast_call(*update, OnUpdate(this, update, get_promise()));
-        update = nullptr;
-      } else if (is_qts_update(update.get())) {
-        if (running_get_difference_ && can_postpone) {
-          auto qts = get_update_qts(update.get());
-          if (qts != 0 && (min_postponed_update_qts_ == 0 || qts < min_postponed_update_qts_)) {
-            min_postponed_update_qts_ = qts;
-          }
-        }
-        downcast_call(*update, OnUpdate(this, update, get_promise()));
-        update = nullptr;
-      } else if (is_channel_pts_update(update.get())) {
-        downcast_call(*update, OnUpdate(this, update, get_promise()));
-        update = nullptr;
-      }
-    }
-  }
-
-  if (seq_begin == 0 && seq_end == 0) {
-    bool have_updates = false;
-    for (auto &update : updates) {
-      if (update != nullptr) {
-        have_updates = true;
-        break;
-      }
-    }
-    if (!have_updates) {
-      LOG(INFO) << "All updates were processed";
-      return lock.set_value(Unit());
-    }
-  }
-
-  if (!use_mpas && update_count == 1) {
-    // still need to process the only update
-    lock = std::move(promise);  // now we can use lock as the last promise
-    update_count = 0;
-  }
-  if (need_postpone || running_get_difference_) {
-    LOG(INFO) << "Postpone " << updates.size() << " updates [" << seq_begin << ", " << seq_end
-              << "] with date = " << date << " from " << source;
-    if (!need_postpone) {
-      LOG(ERROR) << "Run get difference while applying updates from " << source;
-    }
-    if (can_postpone) {
-      postponed_updates_.emplace(seq_begin, seq_end, date, receive_time, std::move(updates), std::move(lock));
-    } else {
-      lock.set_value(Unit());
-    }
-    return;
-  }
-
-  if (seq_begin == 0 || seq_begin == seq_ + 1) {
-    LOG(INFO) << "Process " << updates.size() << " updates [" << seq_begin << ", " << seq_end
-              << "] with date = " << date << " from " << source;
-    process_seq_updates(seq_end, date, std::move(updates), std::move(lock));
-    process_pending_seq_updates();
-    return;
-  }
-
-  if (seq_begin <= seq_) {
-    if (seq_ >= (1 << 30) && seq_begin < seq_ - (1 << 30)) {
-      set_seq_gap_timeout(0.001);
-    }
-    if (seq_end > seq_) {
-      LOG(ERROR) << "Receive updates with seq_begin = " << seq_begin << ", seq_end = " << seq_end
-                 << ", but seq = " << seq_ << " from " << source;
-    } else {
-      LOG(INFO) << "Receive old updates with seq_begin = " << seq_begin << ", seq_end = " << seq_end
-                << ", but seq = " << seq_ << " from " << source;
-    }
-    return lock.set_value(Unit());
-  }
-
-  LOG(INFO) << "Gap in seq has found. Receive " << updates.size() << " updates [" << seq_begin << ", " << seq_end
-            << "] from " << source << ", but seq = " << seq_;
-
-  if (can_postpone_updates()) {
-    pending_seq_updates_.emplace(seq_begin, seq_end, date, receive_time, std::move(updates), std::move(lock));
-  } else {
-    lock.set_value(Unit());
-  }
-
-  set_seq_gap_timeout(receive_time + MAX_UNFILLED_GAP_TIME - Time::now());
-}
-
-void UpdatesManager::on_pending_updates_processed(Result<Unit> result, Promise<Unit> promise) {
-  being_processed_updates_--;
-  promise.set_result(std::move(result));
-}
-
-void UpdatesManager::add_pending_qts_update(tl_object_ptr<telegram_api::Update> &&update, int32 qts,
-                                            Promise<Unit> &&promise) {
-  CHECK(update != nullptr);
-  if (qts <= 1) {
-    LOG(ERROR) << "Receive wrong QTS " << qts << " in " << oneline(to_string(update));
-    schedule_get_difference("wrong QTS");
-    promise.set_value(Unit());
-    return;
-  }
-
-  int32 old_qts = get_qts();
-  LOG(INFO) << "Process update with QTS = " << qts << ", current QTS = " << old_qts;
-  if (qts < old_qts - 1000009) {
-    LOG(WARNING) << "Restore QTS after QTS overflow from " << old_qts << " to " << qts << " by "
-                 << oneline(to_string(update));
-    add_qts(qts - 1).set_value(Unit());
-    CHECK(get_qts() == qts - 1);
-    old_qts = qts - 1;
-    last_confirmed_qts_ = get_qts();
-  }
-
-  if (qts <= old_qts) {
-    LOG(INFO) << "Skip already applied update with QTS = " << qts;
-    promise.set_value(Unit());
-    return;
-  }
-
-  if (running_get_difference_ || (qts - 1 > old_qts && old_qts > 0)) {
-    LOG(INFO) << "Postpone update with QTS = " << qts;
-    if (!running_get_difference_ && pending_qts_updates_.empty()) {
-      set_qts_gap_timeout(MAX_UNFILLED_GAP_TIME);
-    }
-    if (!can_postpone_updates()) {
-      return promise.set_value(Unit());
-    }
-    auto &pending_update = pending_qts_updates_[qts];
-    if (pending_update.update != nullptr) {
-      LOG(WARNING) << "Receive duplicate update with QTS = " << qts;
-    } else {
-      pending_update.receive_time = Time::now();
-    }
-    pending_update.update = std::move(update);
-    pending_update.promises.push_back(std::move(promise));
-    return;
-  }
-
-  process_qts_update(std::move(update), qts, std::move(promise));
-  process_pending_qts_updates();
-}
-
-void UpdatesManager::process_updates(vector<tl_object_ptr<telegram_api::Update>> &&updates, bool force_apply,
-                                     Promise<Unit> &&promise) {
-  int32 update_count = 0;
-  for (auto &update : updates) {
-    if (update != nullptr) {
-      update_count++;
-    }
-  }
-  if (update_count == 0) {
-    return promise.set_value(Unit());
-  }
-
-  MultiPromiseActorSafe mpas{"OnProcessUpdatesMultiPromiseActor"};
-  Promise<Unit> lock;
-  auto use_mpas = update_count != 1;
-  auto get_promise = [&] {
-    if (use_mpas) {
-      return mpas.get_promise();
-    } else {
-      CHECK(update_count != 0);
-      update_count--;
-      return std::move(promise);
-    }
-  };
-  if (use_mpas) {
-    mpas.add_promise(std::move(promise));
-    lock = get_promise();
-  }
-  SCOPE_EXIT {
-    if (!use_mpas && update_count == 1) {
-      promise.set_value(Unit());
-    }
-  };
-
-  /*
-    for (auto &update : updates) {
-      if (update != nullptr) {
-        // TODO can't apply it here, because dialog may not be created yet
-        // process updateReadChannelInbox before updateNewChannelMessage
-        auto constructor_id = update->get_id();
-        if (constructor_id == telegram_api::updateReadChannelInbox::ID) {
-          on_update(move_tl_object_as<telegram_api::updateReadChannelInbox>(update), get_promise());
-        }
-      }
-    }
-  */
-
-  tl_object_ptr<telegram_api::updatePtsChanged> update_pts_changed;
-  for (auto &update : updates) {
-    if (update != nullptr) {
-      // process updateNewChannelMessage first
-      auto constructor_id = update->get_id();
-      if (constructor_id == telegram_api::updateNewChannelMessage::ID) {
-        on_update(move_tl_object_as<telegram_api::updateNewChannelMessage>(update), get_promise());
-        continue;
-      }
-
-      // process updateNewScheduledMessage first
-      if (constructor_id == telegram_api::updateNewScheduledMessage::ID) {
-        on_update(move_tl_object_as<telegram_api::updateNewScheduledMessage>(update), get_promise());
-        continue;
-      }
-
-      // updateGroupCallConnection must be processed before updateGroupCall
-      if (constructor_id == telegram_api::updateGroupCallConnection::ID) {
-        on_update(move_tl_object_as<telegram_api::updateGroupCallConnection>(update), get_promise());
-        continue;
-      }
-
-      // updatePtsChanged forces get difference, so process it last
-      if (constructor_id == telegram_api::updatePtsChanged::ID) {
-        update_pts_changed = move_tl_object_as<telegram_api::updatePtsChanged>(update);
-        continue;
-      }
-    }
-  }
-  if (force_apply) {
-    for (auto &update : updates) {
-      if (update != nullptr) {
-        if (is_pts_update(update.get())) {
-          auto constructor_id = update->get_id();
-          if (constructor_id == telegram_api::updateWebPage::ID) {
-            auto update_web_page = move_tl_object_as<telegram_api::updateWebPage>(update);
-            td_->web_pages_manager_->on_get_web_page(std::move(update_web_page->webpage_), DialogId());
-            continue;
-          }
-
-          CHECK(constructor_id != telegram_api::updateFolderPeers::ID);
-
-          if (constructor_id == telegram_api::updateReadHistoryInbox::ID) {
-            static_cast<telegram_api::updateReadHistoryInbox *>(update.get())->still_unread_count_ = -1;
-          }
-
-          process_pts_update(std::move(update));
-          CHECK(update == nullptr);
-        } else if (is_qts_update(update.get())) {
-          process_qts_update(std::move(update), 0, get_promise());
-          CHECK(update == nullptr);
-        } else if (update->get_id() == telegram_api::updateChannelTooLong::ID) {
-          td_->messages_manager_->on_update_channel_too_long(
-              move_tl_object_as<telegram_api::updateChannelTooLong>(update), true);
-        }
-      }
-    }
-  }
-  for (auto &update : updates) {
-    if (update != nullptr) {
-      LOG(INFO) << "Process update " << to_string(update);
-      downcast_call(*update, OnUpdate(this, update, get_promise()));
-      CHECK(!running_get_difference_);
-    }
-  }
-  if (update_pts_changed != nullptr) {
-    on_update(std::move(update_pts_changed), get_promise());
-  }
-  lock.set_value(Unit());
-}
-
-void UpdatesManager::process_pts_update(tl_object_ptr<telegram_api::Update> &&update) {
-  CHECK(update != nullptr);
-
-  // TODO need to save all updates that can change result of running queries not associated with PTS (for example
-  // getHistory) and apply the updates to results of the queries
-
-  if (!check_pts_update(update)) {
-    LOG(ERROR) << "Receive wrong PTS update: " << oneline(to_string(update));
-    update = nullptr;
-    return;
-  }
-
-  // must be called only during getDifference
-  CHECK(pending_pts_updates_.empty());
-  CHECK(accumulated_pts_ == -1);
-
-  td_->messages_manager_->process_pts_update(std::move(update));
-}
-
-void UpdatesManager::add_pending_pts_update(tl_object_ptr<telegram_api::Update> &&update, int32 new_pts,
-                                            int32 pts_count, double receive_time, Promise<Unit> &&promise,
-                                            const char *source) {
-  // do not try to run getDifference from this function
-  CHECK(update != nullptr);
-  CHECK(source != nullptr);
-  LOG(INFO) << "Receive from " << source << " with pts_count = " << pts_count << " pending " << to_string(update);
-  if (pts_count < 0 || new_pts <= pts_count) {
-    LOG(ERROR) << "Receive update with wrong PTS = " << new_pts << " or pts_count = " << pts_count << " from " << source
-               << ": " << oneline(to_string(update));
-    return promise.set_value(Unit());
-  }
-
-  // TODO need to save all updates that can change result of running queries not associated with PTS (for example
-  // getHistory) and apply them to result of this queries
-
-  if (!check_pts_update(update)) {
-    LOG(ERROR) << "Receive wrong PTS update from " << source << ": " << oneline(to_string(update));
-    return promise.set_value(Unit());
-  }
-
-  if (DROP_PTS_UPDATES && Slice(source) != Slice("on_get_pts_update")) {
-    set_pts_gap_timeout(1.0);
-    return promise.set_value(Unit());
-  }
-
-  int32 old_pts = get_pts();
-  if (new_pts < old_pts - 99 && source != AFTER_GET_DIFFERENCE_SOURCE) {
-    bool need_restore_pts = new_pts < old_pts - 19999;
-    auto now = Time::now();
-    if (old_pts == 2100000000 && new_pts < 1100000000 && pts_count <= 10000 &&
-        td_->option_manager_->get_option_integer("session_count") > 1) {
-      set_pts(1, "restore PTS").set_value(Unit());
-      old_pts = get_pts();
-      set_pts_gap_timeout(0.001);
-      return promise.set_value(Unit());
-    } else if (now > last_pts_jump_warning_time_ + 1 && need_restore_pts &&
-               !(old_pts == std::numeric_limits<int32>::max() && running_get_difference_)) {
-      LOG(ERROR) << "Restore PTS after delete_first_messages from " << old_pts << " to " << new_pts
-                 << " is disabled, pts_count = " << pts_count << ", update is from " << source << ": "
-                 << oneline(to_string(update));
-      last_pts_jump_warning_time_ = now;
-    }
-    if (need_restore_pts) {
-      set_pts_gap_timeout(0.001);
-    }
-  }
-
-  if (new_pts <= old_pts || (old_pts >= 1 && new_pts - (1 << 30) > old_pts)) {
-    td_->messages_manager_->skip_old_pending_pts_update(std::move(update), new_pts, old_pts, pts_count, source);
-    return promise.set_value(Unit());
-  }
-  if (source == AFTER_GET_DIFFERENCE_SOURCE && old_pts >= 1 && new_pts - (1 << 21) > old_pts) {
-    LOG(ERROR) << "Ignore update " << oneline(to_string(update)) << ", because current PTS is " << old_pts;
-    return promise.set_value(Unit());
-  }
-
-  if (running_get_difference_ || !postponed_pts_updates_.empty()) {
-    LOG(INFO) << "Save pending update received while running getDifference from " << source;
-    postpone_pts_update(std::move(update), new_pts, pts_count, receive_time, std::move(promise));
-    return;
-  }
-
-  // is_acceptable_update check was skipped for postponed PTS updates
-  if (source == AFTER_GET_DIFFERENCE_SOURCE && !is_acceptable_update(update.get())) {
-    LOG(INFO) << "Postpone again unacceptable pending update";
-    postpone_pts_update(std::move(update), new_pts, pts_count, receive_time, std::move(promise));
-    set_pts_gap_timeout(0.001);
-    return;
-  }
-
-  if (old_pts > new_pts - pts_count) {
-    LOG(WARNING) << "Have old_pts (= " << old_pts << ") + pts_count (= " << pts_count << ") > new_pts (= " << new_pts
-                 << "). Logged in " << td_->option_manager_->get_option_integer("authorization_date")
-                 << ". Update from " << source << " = " << oneline(to_string(update));
-    postpone_pts_update(std::move(update), new_pts, pts_count, receive_time, std::move(promise));
-    set_pts_gap_timeout(0.001);
-    return;
-  }
-
-  accumulated_pts_count_ += pts_count;
-  if (new_pts > accumulated_pts_) {
-    accumulated_pts_ = new_pts;
-  }
-
-  if (old_pts > accumulated_pts_ - accumulated_pts_count_) {
-    LOG(WARNING) << "Have old_pts (= " << old_pts << ") + accumulated_pts_count (= " << accumulated_pts_count_
-                 << ") > accumulated_pts (= " << accumulated_pts_ << "). new_pts = " << new_pts
-                 << ", pts_count = " << pts_count << ". Logged in "
-                 << td_->option_manager_->get_option_integer("authorization_date") << ". Update from " << source
-                 << " = " << oneline(to_string(update));
-    postpone_pts_update(std::move(update), new_pts, pts_count, receive_time, std::move(promise));
-    set_pts_gap_timeout(0.001);
-    return;
-  }
-
-  LOG_IF(INFO, pts_count == 0 && update->get_id() != dummyUpdate::ID) << "Skip useless update " << to_string(update);
-
-  if (pending_pts_updates_.empty() && old_pts == accumulated_pts_ - accumulated_pts_count_ &&
-      !pts_gap_timeout_.has_timeout()) {
-    if (pts_count > 0) {
-      td_->messages_manager_->process_pts_update(std::move(update));
-
-      set_pts(accumulated_pts_, "process pending updates fast path")
-          .set_value(Unit());  // TODO can't set until data are really stored on persistent storage
-      accumulated_pts_count_ = 0;
-      accumulated_pts_ = -1;
-    } else {
-      LOG(DEBUG) << "There is no need to process the update";
-    }
-    promise.set_value(Unit());
-    return;
-  }
-
-  if (pts_count == 0 && receive_time < Time::now() - MAX_UNFILLED_GAP_TIME && update->get_id() == dummyUpdate::ID) {
-    // don't warn about fetching of affected history
-    expect_pts_gap_ = true;
-  }
-
-  pending_pts_updates_.emplace(std::move(update), new_pts, pts_count, receive_time, std::move(promise));
-
-  if (old_pts < accumulated_pts_ - accumulated_pts_count_) {
-    if (old_pts == new_pts - pts_count) {
-      // can't apply all updates, but can apply this and probably some other updates
-      process_pending_pts_updates();
-    } else {
-      LOG(DEBUG) << "Can't process PTS updates, because current PTS = " << old_pts << ", new PTS = " << new_pts
-                 << ", pts_count = " << pts_count << ", maximum known PTS = " << accumulated_pts_
-                 << ", accumulated_pts_count = " << accumulated_pts_count_;
-      set_pts_gap_timeout(max(receive_time + MAX_UNFILLED_GAP_TIME - Time::now(), 0.001));
-    }
-    return;
-  }
-
-  CHECK(old_pts == accumulated_pts_ - accumulated_pts_count_);
-  process_all_pending_pts_updates();
-}
-
-size_t UpdatesManager::get_pending_pts_update_count() {
-  return postponed_pts_updates_.size() + pending_pts_updates_.size();
-}
-
-void UpdatesManager::postpone_pts_update(tl_object_ptr<telegram_api::Update> &&update, int32 pts, int32 pts_count,
-                                         double receive_time, Promise<Unit> &&promise) {
-  if (!can_postpone_updates() || (pts_count > 1 && td_->option_manager_->get_option_integer("session_count") <= 1)) {
-    return promise.set_value(Unit());
-  }
-  postponed_pts_updates_.emplace(std::move(update), pts, pts_count, receive_time, std::move(promise));
-}
-
-void UpdatesManager::process_seq_updates(int32 seq_end, int32 date,
-                                         vector<tl_object_ptr<telegram_api::Update>> &&updates,
-                                         Promise<Unit> &&promise) {
-  string serialized_updates;
-  if (date && seq_end) {
-    serialized_updates = PSTRING() << "process_seq_updates [seq_ = " << seq_ << ", seq_end = " << seq_end << "]: ";
-    // TODO remove after bugs will be fixed
-    for (auto &update : updates) {
-      if (update != nullptr) {
-        serialized_updates += oneline(to_string(update));
-      }
-    }
-  }
-  process_updates(std::move(updates), false, std::move(promise));
-  if (seq_end) {
-    seq_ = seq_end;
-  }
-  if (date && seq_end) {
-    set_date(date, true, std::move(serialized_updates));
-  }
-}
-
-void UpdatesManager::process_qts_update(tl_object_ptr<telegram_api::Update> &&update_ptr, int32 qts,
-                                        Promise<Unit> &&promise) {
-  LOG(DEBUG) << "Process " << to_string(update_ptr);
-  if (last_confirmed_qts_ < qts - FORCED_GET_DIFFERENCE_PTS_DIFF && last_confirmed_qts_ != 0) {
-    confirm_pts_qts(qts);
-  }
-  qts_diff_++;
-  if (qts_diff_ >= 1000000) {
-    LOG(WARNING) << "Fixed " << qts_gap_ << " QTS gaps up to QTS " << qts;
-    qts_gap_ = 0;
-    qts_diff_ = 0;
-  }
-  auto constructor_id = update_ptr->get_id();
-  if (constructor_id == telegram_api::updateNewEncryptedMessage::ID) {
-    auto update = move_tl_object_as<telegram_api::updateNewEncryptedMessage>(update_ptr);
-    send_closure(td_->secret_chats_manager_, &SecretChatsManager::on_new_message, std::move(update->message_),
-                 add_qts(qts));
-  } else if (td_->auth_manager_->is_bot()) {
-    switch (constructor_id) {
-      case telegram_api::updateMessagePollVote::ID: {
-        auto update = move_tl_object_as<telegram_api::updateMessagePollVote>(update_ptr);
-        td_->poll_manager_->on_get_poll_vote(PollId(update->poll_id_), DialogId(update->peer_),
-                                             std::move(update->options_));
-        break;
-      }
-      case telegram_api::updateBotStopped::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotStopped>(update_ptr);
-        td_->dialog_participant_manager_->on_update_bot_stopped(UserId(update->user_id_), update->date_,
-                                                                update->stopped_);
-        break;
-      }
-      case telegram_api::updateChatParticipant::ID: {
-        auto update = move_tl_object_as<telegram_api::updateChatParticipant>(update_ptr);
-        bool via_join_request =
-            update->invite_ != nullptr && update->invite_->get_id() == telegram_api::chatInvitePublicJoinRequests::ID;
-        td_->dialog_participant_manager_->on_update_chat_participant(
-            ChatId(update->chat_id_), UserId(update->actor_id_), update->date_,
-            DialogInviteLink(std::move(update->invite_), true, true, "updateChatParticipant"), via_join_request,
-            std::move(update->prev_participant_), std::move(update->new_participant_));
-        break;
-      }
-      case telegram_api::updateChannelParticipant::ID: {
-        auto update = move_tl_object_as<telegram_api::updateChannelParticipant>(update_ptr);
-        bool via_join_request =
-            update->invite_ != nullptr && update->invite_->get_id() == telegram_api::chatInvitePublicJoinRequests::ID;
-        td_->dialog_participant_manager_->on_update_channel_participant(
-            ChannelId(update->channel_id_), UserId(update->actor_id_), update->date_,
-            DialogInviteLink(std::move(update->invite_), true, true, "updateChannelParticipant"), via_join_request,
-            update->via_chatlist_, std::move(update->prev_participant_), std::move(update->new_participant_));
-        break;
-      }
-      case telegram_api::updateBotChatInviteRequester::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotChatInviteRequester>(update_ptr);
-        td_->dialog_participant_manager_->on_update_chat_invite_requester(
-            DialogId(update->peer_), UserId(update->user_id_), std::move(update->about_), update->date_,
-            DialogInviteLink(std::move(update->invite_), true, true, "updateBotChatInviteRequester"));
-        break;
-      }
-      case telegram_api::updateBotChatBoost::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotChatBoost>(update_ptr);
-        td_->boost_manager_->on_update_dialog_boost(DialogId(update->peer_), std::move(update->boost_));
-        break;
-      }
-      case telegram_api::updateBotMessageReaction::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotMessageReaction>(update_ptr);
-        auto dialog_id = DialogId(update->peer_);
-        auto message_id = MessageId(ServerMessageId(update->msg_id_));
-        auto date = update->date_;
-        auto actor_dialog_id = DialogId(update->actor_);
-        auto old_reaction_types = ReactionType::get_reaction_types(update->old_reactions_);
-        auto new_reaction_types = ReactionType::get_reaction_types(update->new_reactions_);
-        if (!dialog_id.is_valid() || !message_id.is_valid() || !actor_dialog_id.is_valid() || date <= 0 ||
-            old_reaction_types == new_reaction_types) {
-          LOG(ERROR) << "Receive invalid updateBotMessageReaction for " << MessageFullId{dialog_id, message_id}
-                     << " by " << actor_dialog_id << " at " << date << ": " << old_reaction_types << " -> "
-                     << new_reaction_types;
-          break;
-        }
-
-        td_->dialog_manager_->force_create_dialog(dialog_id, "on_update_bot_message_reaction", true);
-        send_closure(G()->td(), &Td::send_update,
-                     td_api::make_object<td_api::updateMessageReaction>(
-                         td_->dialog_manager_->get_chat_id_object(dialog_id, "updateMessageReaction"), message_id.get(),
-                         get_message_sender_object(td_, actor_dialog_id, "updateMessageReaction"), date,
-                         ReactionType::get_reaction_types_object(old_reaction_types, false),
-                         ReactionType::get_reaction_types_object(new_reaction_types, false)));
-        break;
-      }
-      case telegram_api::updateBotMessageReactions::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotMessageReactions>(update_ptr);
-        auto dialog_id = DialogId(update->peer_);
-        auto message_id = MessageId(ServerMessageId(update->msg_id_));
-        auto date = update->date_;
-        if (!dialog_id.is_valid() || !message_id.is_valid() || date <= 0) {
-          LOG(ERROR) << "Receive invalid " << to_string(update);
-          break;
-        }
-        vector<td_api::object_ptr<td_api::messageReaction>> message_reactions;
-        for (const auto &reaction_count : update->reactions_) {
-          auto reaction_type = ReactionType(reaction_count->reaction_);
-          if (reaction_type.is_empty() || reaction_count->count_ <= 0) {
-            LOG(ERROR) << "Receive invalid reaction in updateBotMessageReactions for "
-                       << MessageFullId{dialog_id, message_id} << " at " << date << ": " << to_string(reaction_count);
-            continue;
-          }
-          message_reactions.push_back(td_api::make_object<td_api::messageReaction>(
-              reaction_type.get_reaction_type_object(), reaction_count->count_, false, nullptr, Auto()));
-        }
-        td_->dialog_manager_->force_create_dialog(dialog_id, "on_update_bot_message_reactions", true);
-        send_closure(G()->td(), &Td::send_update,
-                     td_api::make_object<td_api::updateMessageReactions>(
-                         td_->dialog_manager_->get_chat_id_object(dialog_id, "updateMessageReactions"),
-                         message_id.get(), date, std::move(message_reactions)));
-        break;
-      }
-      case telegram_api::updateBotPurchasedPaidMedia::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotPurchasedPaidMedia>(update_ptr);
-        auto user_id = UserId(update->user_id_);
-        if (!user_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid " << to_string(update);
-          break;
-        }
-        send_closure(
-            G()->td(), &Td::send_update,
-            td_api::make_object<td_api::updatePaidMediaPurchased>(
-                td_->user_manager_->get_user_id_object(user_id, "updatePaidMediaPurchased"), update->payload_));
-        break;
-      }
-      case telegram_api::updateBotBusinessConnect::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotBusinessConnect>(update_ptr);
-        td_->business_connection_manager_->on_update_bot_business_connect(std::move(update->connection_));
-        break;
-      }
-      case telegram_api::updateBotNewBusinessMessage::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotNewBusinessMessage>(update_ptr);
-        td_->business_connection_manager_->on_update_bot_new_business_message(
-            BusinessConnectionId(std::move(update->connection_id_)), std::move(update->message_),
-            std::move(update->reply_to_message_));
-        break;
-      }
-      case telegram_api::updateBotEditBusinessMessage::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotEditBusinessMessage>(update_ptr);
-        td_->business_connection_manager_->on_update_bot_edit_business_message(
-            BusinessConnectionId(std::move(update->connection_id_)), std::move(update->message_),
-            std::move(update->reply_to_message_));
-        break;
-      }
-      case telegram_api::updateBotDeleteBusinessMessage::ID: {
-        auto update = move_tl_object_as<telegram_api::updateBotDeleteBusinessMessage>(update_ptr);
-        td_->business_connection_manager_->on_update_bot_delete_business_messages(
-            BusinessConnectionId(std::move(update->connection_id_)), DialogId(update->peer_),
-            std::move(update->messages_));
-        break;
-      }
-      default:
-        UNREACHABLE();
-        break;
-    }
-    add_qts(qts).set_value(Unit());
-  } else {
-    add_qts(qts).set_value(Unit());
-    LOG(ERROR) << "Receive " << to_string(update_ptr);
-    update_ptr = nullptr;
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::process_all_pending_pts_updates() {
-  auto begin_time = Time::now();
-  for (auto &update : pending_pts_updates_) {
-    td_->messages_manager_->process_pts_update(std::move(update.update));
-    update.promise.set_value(Unit());
-  }
-
-  if (last_pts_gap_time_ != 0) {
-    auto begin_diff = begin_time - last_pts_gap_time_;
-    auto diff = Time::now() - last_pts_gap_time_;
-    last_pts_gap_time_ = 0;
-    if (diff > 0.1) {
-      VLOG(get_difference) << "Gap in PTS from " << accumulated_pts_ - accumulated_pts_count_ << " to "
-                           << accumulated_pts_ << " has been filled in " << begin_diff << '-' << diff << " seconds";
-    }
-  }
-
-  set_pts(accumulated_pts_, "process_all_pending_pts_updates")
-      .set_value(Unit());  // TODO can't set until updates are stored on persistent storage
-  drop_all_pending_pts_updates();
-}
-
-void UpdatesManager::drop_all_pending_pts_updates() {
-  accumulated_pts_count_ = 0;
-  accumulated_pts_ = -1;
-  min_pts_gap_timeout_.cancel_timeout();
-  pts_gap_timeout_.cancel_timeout();
-  pending_pts_updates_.clear();
-}
-
-void UpdatesManager::process_postponed_pts_updates() {
-  if (postponed_pts_updates_.empty()) {
-    return;
-  }
-
-  auto begin_time = Time::now();
-  auto initial_pts = get_pts();
-  auto old_pts = initial_pts;
-  int32 skipped_update_count = 0;
-  int32 applied_update_count = 0;
-  auto update_it = postponed_pts_updates_.begin();
-  while (update_it != postponed_pts_updates_.end()) {
-    auto new_pts = update_it->pts;
-    auto pts_count = update_it->pts_count;
-    if (new_pts <= old_pts || (old_pts >= 1 && new_pts - (1 << 30) > old_pts)) {
-      skipped_update_count++;
-      td_->messages_manager_->skip_old_pending_pts_update(std::move(update_it->update), new_pts, old_pts, pts_count,
-                                                          "process_postponed_pts_updates");
-      update_it->promise.set_value(Unit());
-      update_it = postponed_pts_updates_.erase(update_it);
-      continue;
-    }
-
-    if (Time::now() - begin_time >= UPDATE_APPLY_WARNING_TIME) {
-      // the updates will be applied or skipped later; reget the remaining updates through getDifference
-      break;
-    }
-
-    auto last_update_it = update_it;
-    for (int32 i = 1; true; i++) {
-      ++last_update_it;
-      if (old_pts == new_pts - pts_count) {
-        // the updates can be applied
-        break;
-      }
-      if (old_pts > new_pts - pts_count || last_update_it == postponed_pts_updates_.end() ||
-          i == GAP_TIMEOUT_UPDATE_COUNT) {
-        // the updates can't be applied
-        VLOG(get_difference) << "Can't apply " << i << " next postponed updates with PTS " << update_it->pts << '-'
-                             << new_pts << ", because their pts_count is " << pts_count << " instead of expected "
-                             << new_pts - old_pts;
-        last_update_it = update_it;
-        break;
-      }
-
-      new_pts = last_update_it->pts;
-      pts_count += last_update_it->pts_count;
-    }
-
-    if (last_update_it == update_it) {
-      // the updates will be applied or skipped later
-      break;
-    }
-    CHECK(old_pts == new_pts - pts_count);
-
-    while (update_it != last_update_it) {
-      if (update_it->pts_count > 0) {
-        applied_update_count++;
-        td_->messages_manager_->process_pts_update(std::move(update_it->update));
-      }
-      update_it->promise.set_value(Unit());
-      update_it = postponed_pts_updates_.erase(update_it);
-    }
-    old_pts = new_pts;
-  }
-  if (old_pts != initial_pts) {
-    set_pts(old_pts, "process_postponed_pts_updates")
-        .set_value(Unit());  // TODO can't set until data are really stored on persistent storage
-  }
-  CHECK(!running_get_difference_);
-  if (skipped_update_count + applied_update_count > 0) {
-    VLOG(get_difference) << "PTS has changed from " << initial_pts << " to " << old_pts << " after skipping "
-                         << skipped_update_count << ", applying " << applied_update_count << " and keeping "
-                         << postponed_pts_updates_.size() << " postponed updates";
-  }
-
-  auto passed_time = Time::now() - begin_time;
-  if (passed_time >= UPDATE_APPLY_WARNING_TIME) {
-    LOG(WARNING) << "PTS has changed from " << initial_pts << " to " << old_pts << " after skipping "
-                 << skipped_update_count << ", applying " << applied_update_count << " and keeping "
-                 << postponed_pts_updates_.size() << " postponed for " << (Time::now() - get_difference_start_time_)
-                 << " seconds updates in " << passed_time << " seconds";
-  }
-}
-
-void UpdatesManager::process_pending_pts_updates() {
-  if (pending_pts_updates_.empty()) {
-    return;
-  }
-
-  auto begin_time = Time::now();
-  auto initial_pts = get_pts();
-  int32 applied_update_count = 0;
-  while (!pending_pts_updates_.empty()) {
-    auto update_it = pending_pts_updates_.begin();
-    auto &update = *update_it;
-    if (get_pts() != update.pts - update.pts_count) {
-      // the updates will be applied or skipped later
-      break;
-    }
-
-    applied_update_count++;
-    if (update.pts_count > 0) {
-      td_->messages_manager_->process_pts_update(std::move(update.update));
-      set_pts(update.pts, "process_pending_pts_updates")
-          .set_value(Unit());  // TODO can't set until data are really stored on persistent storage
-
-      if (accumulated_pts_ != -1) {
-        CHECK(update.pts <= accumulated_pts_);
-        CHECK(accumulated_pts_count_ >= update.pts_count);
-        accumulated_pts_count_ -= update.pts_count;
-      }
-    } else {
-      LOG(INFO) << "Skip because of pts_count == 0 " << to_string(update.update);
-    }
-    update.promise.set_value(Unit());
-    pending_pts_updates_.erase(update_it);
-  }
-  if (applied_update_count > 0) {
-    min_pts_gap_timeout_.cancel_timeout();
-    pts_gap_timeout_.cancel_timeout();
-  }
-  if (!pending_pts_updates_.empty()) {
-    // if still have a gap, reset timeout
-    auto update_it = pending_pts_updates_.begin();
-    double receive_time = update_it->receive_time;
-    for (size_t i = 0; i < GAP_TIMEOUT_UPDATE_COUNT; i++) {
-      if (++update_it == pending_pts_updates_.end()) {
-        break;
-      }
-      receive_time = min(receive_time, update_it->receive_time);
-    }
-    set_pts_gap_timeout(max(receive_time + MAX_UNFILLED_GAP_TIME - Time::now(), 0.001));
-  }
-
-  auto passed_time = Time::now() - begin_time;
-  if (passed_time >= UPDATE_APPLY_WARNING_TIME) {
-    LOG(WARNING) << "PTS has changed from " << initial_pts << " to " << get_pts() << " after applying "
-                 << applied_update_count << " and keeping " << pending_pts_updates_.size() << " pending updates in "
-                 << passed_time << " seconds";
-  }
-}
-
-void UpdatesManager::process_pending_seq_updates() {
-  if (!pending_seq_updates_.empty()) {
-    LOG(DEBUG) << "Trying to process " << pending_seq_updates_.size() << " pending seq updates";
-    // must not return, because in case of seq overflow there are no pending seq updates
-  }
-
-  auto begin_time = Time::now();
-  int32 initial_seq = seq_;
-  int32 applied_update_count = 0;
-  while (!pending_seq_updates_.empty() && !running_get_difference_) {
-    auto update_it = pending_seq_updates_.begin();
-    auto &update = *update_it;
-    auto seq_begin = update.seq_begin;
-    if (seq_begin - 1 > seq_ && seq_begin - (1 << 30) <= seq_) {
-      // the updates will be applied later
-      break;
-    }
-
-    applied_update_count++;
-    auto seq_end = update.seq_end;
-    if (seq_begin - 1 == seq_) {
-      process_seq_updates(seq_end, update.date, std::move(update.updates), std::move(update.promise));
-    } else {
-      // old update
-      CHECK(seq_begin != 0);
-      if (seq_begin <= seq_ && seq_ < seq_end) {
-        LOG(ERROR) << "Receive updates with seq_begin = " << seq_begin << ", seq_end = " << seq_end
-                   << ", but seq = " << seq_;
-      }
-      update.promise.set_value(Unit());
-    }
-    pending_seq_updates_.erase(update_it);
-  }
-  if (pending_seq_updates_.empty() || applied_update_count > 0) {
-    seq_gap_timeout_.cancel_timeout();
-  }
-  if (!pending_seq_updates_.empty()) {
-    // if still have a gap, reset timeout
-    auto update_it = pending_seq_updates_.begin();
-    double receive_time = update_it->receive_time;
-    for (size_t i = 0; i < GAP_TIMEOUT_UPDATE_COUNT; i++) {
-      if (++update_it == pending_seq_updates_.end()) {
-        break;
-      }
-      receive_time = min(receive_time, update_it->receive_time);
-    }
-    set_seq_gap_timeout(receive_time + MAX_UNFILLED_GAP_TIME - Time::now());
-  }
-
-  auto passed_time = Time::now() - begin_time;
-  if (passed_time >= UPDATE_APPLY_WARNING_TIME) {
-    LOG(WARNING) << "Seq has changed from " << initial_seq << " to " << seq_ << " after applying "
-                 << applied_update_count << " and keeping " << pending_seq_updates_.size() << " pending updates in "
-                 << passed_time << " seconds";
-  }
-}
-
-void UpdatesManager::process_pending_qts_updates() {
-  if (pending_qts_updates_.empty()) {
-    return;
-  }
-
-  LOG(DEBUG) << "Process " << pending_qts_updates_.size() << " pending QTS updates";
-  auto begin_time = Time::now();
-  auto initial_qts = get_qts();
-  int32 applied_update_count = 0;
-  while (!pending_qts_updates_.empty()) {
-    CHECK(!running_get_difference_);
-    auto update_it = pending_qts_updates_.begin();
-    auto qts = update_it->first;
-    auto old_qts = get_qts();
-    if (qts - 1 > old_qts && qts - (1 << 30) <= old_qts) {
-      // the update will be applied later
-      break;
-    }
-    auto promise = PromiseCreator::lambda(
-        [promises = std::move(update_it->second.promises)](Unit) mutable { set_promises(promises); });
-    applied_update_count++;
-    if (qts == old_qts + 1) {
-      process_qts_update(std::move(update_it->second.update), qts, std::move(promise));
-    } else {
-      promise.set_value(Unit());
-    }
-    pending_qts_updates_.erase(update_it);
-  }
-
-  if (applied_update_count > 0) {
-    qts_gap_timeout_.cancel_timeout();
-  }
-  if (!pending_qts_updates_.empty()) {
-    // if still have a gap, reset timeout
-    auto update_it = pending_qts_updates_.begin();
-    double receive_time = update_it->second.receive_time;
-    for (size_t i = 0; i < GAP_TIMEOUT_UPDATE_COUNT; i++) {
-      if (++update_it == pending_qts_updates_.end()) {
-        break;
-      }
-      receive_time = min(receive_time, update_it->second.receive_time);
-    }
-    set_qts_gap_timeout(receive_time + MAX_UNFILLED_GAP_TIME - Time::now());
-  }
-  CHECK(!running_get_difference_);
-
-  auto passed_time = Time::now() - begin_time;
-  if (passed_time >= UPDATE_APPLY_WARNING_TIME) {
-    LOG(WARNING) << "QTS has changed from " << initial_qts << " to " << get_qts() << " after applying "
-                 << applied_update_count << " and keeping " << pending_qts_updates_.size() << " pending updates in "
-                 << passed_time << " seconds";
-  }
-}
-
-void UpdatesManager::set_pts_gap_timeout(double timeout) {
-  if (!pts_gap_timeout_.has_timeout() || timeout < pts_gap_timeout_.get_timeout()) {
-    LOG(DEBUG) << "Set PTS gap timeout in " << timeout;
-    if (timeout > 2 * MIN_UNFILLED_GAP_TIME) {
-      min_pts_gap_timeout_.set_callback(std::move(check_pts_gap));
-      min_pts_gap_timeout_.set_callback_data(static_cast<void *>(td_));
-      min_pts_gap_timeout_.set_timeout_in(MIN_UNFILLED_GAP_TIME);
-    }
-
-    pts_gap_timeout_.set_callback(std::move(fill_pts_gap));
-    pts_gap_timeout_.set_callback_data(static_cast<void *>(td_));
-    pts_gap_timeout_.set_timeout_in(timeout);
-    last_pts_gap_time_ = Time::now();
-  }
-}
-
-void UpdatesManager::set_seq_gap_timeout(double timeout) {
-  if (!seq_gap_timeout_.has_timeout() || timeout < seq_gap_timeout_.get_timeout()) {
-    LOG(DEBUG) << "Set seq gap timeout in " << timeout;
-    seq_gap_timeout_.set_callback(std::move(fill_seq_gap));
-    seq_gap_timeout_.set_callback_data(static_cast<void *>(td_));
-    seq_gap_timeout_.set_timeout_in(timeout);
-  }
-}
-
-void UpdatesManager::set_qts_gap_timeout(double timeout) {
-  if (!qts_gap_timeout_.has_timeout() || timeout < qts_gap_timeout_.get_timeout()) {
-    LOG(DEBUG) << "Set QTS gap timeout in " << timeout;
-    qts_gap_timeout_.set_callback(std::move(fill_qts_gap));
-    qts_gap_timeout_.set_callback_data(static_cast<void *>(td_));
-    qts_gap_timeout_.set_timeout_in(timeout);
-  }
-}
-
-void UpdatesManager::on_pending_update(tl_object_ptr<telegram_api::Update> update, int32 seq, Promise<Unit> &&promise,
-                                       const char *source) {
-  vector<tl_object_ptr<telegram_api::Update>> updates;
-  updates.push_back(std::move(update));
-  on_pending_updates(std::move(updates), seq, seq, 0, Time::now(), std::move(promise), source);
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNewMessage> update, Promise<Unit> &&promise) {
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  add_pending_pts_update(std::move(update), new_pts, pts_count, Time::now(), std::move(promise), "updateNewMessage");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNewChannelMessage> update, Promise<Unit> &&promise) {
-  DialogId dialog_id = DialogId::get_message_dialog_id(update->message_);
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  td_->messages_manager_->add_pending_channel_update(dialog_id, std::move(update), new_pts, pts_count,
-                                                     std::move(promise), "updateNewChannelMessage");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateMessageID> update, Promise<Unit> &&promise) {
-  LOG(ERROR) << "Receive not in getDifference and not in on_pending_updates " << to_string(update);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadMessagesContents> update,
-                               Promise<Unit> &&promise) {
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  add_pending_pts_update(std::move(update), new_pts, pts_count, Time::now(), std::move(promise),
-                         "updateReadMessagesContents");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateEditMessage> update, Promise<Unit> &&promise) {
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  add_pending_pts_update(std::move(update), new_pts, pts_count, Time::now(), std::move(promise), "updateEditMessage");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDeleteMessages> update, Promise<Unit> &&promise) {
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  if (update->messages_.empty()) {
-    add_pending_pts_update(make_tl_object<dummyUpdate>(), new_pts, pts_count, Time::now(), Promise<Unit>(),
-                           "updateDeleteMessages");
-    promise.set_value(Unit());
-  } else {
-    add_pending_pts_update(std::move(update), new_pts, pts_count, Time::now(), std::move(promise),
-                           "updateDeleteMessages");
-  }
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadHistoryInbox> update, Promise<Unit> &&promise) {
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  add_pending_pts_update(std::move(update), new_pts, pts_count, Time::now(), std::move(promise),
-                         "updateReadHistoryInbox");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadHistoryOutbox> update, Promise<Unit> &&promise) {
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  add_pending_pts_update(std::move(update), new_pts, pts_count, Time::now(), std::move(promise),
-                         "updateReadHistoryOutbox");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateServiceNotification> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_service_notification(std::move(update), true, Promise<Unit>());
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChat> update, Promise<Unit> &&promise) {
-  td_->dialog_manager_->on_dialog_info_full_invalidated(DialogId(ChatId(update->chat_id_)));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadChannelInbox> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_read_channel_inbox(std::move(update));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadChannelOutbox> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_read_channel_outbox(std::move(update));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelReadMessagesContents> update,
-                               Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_read_channel_messages_contents(std::move(update));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelTooLong> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_channel_too_long(std::move(update), false);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannel> update, Promise<Unit> &&promise) {
-  td_->chat_manager_->invalidate_channel_full(ChannelId(update->channel_id_), false, "updateChannel");
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateEditChannelMessage> update, Promise<Unit> &&promise) {
-  DialogId dialog_id = DialogId::get_message_dialog_id(update->message_);
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  td_->messages_manager_->add_pending_channel_update(dialog_id, std::move(update), new_pts, pts_count,
-                                                     std::move(promise), "updateEditChannelMessage");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDeleteChannelMessages> update,
-                               Promise<Unit> &&promise) {
-  DialogId dialog_id(ChannelId(update->channel_id_));
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  td_->messages_manager_->add_pending_channel_update(dialog_id, std::move(update), new_pts, pts_count,
-                                                     std::move(promise), "updateDeleteChannelMessages");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelMessageViews> update, Promise<Unit> &&promise) {
-  ChannelId channel_id(update->channel_id_);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id;
-  } else {
-    DialogId dialog_id(channel_id);
-    td_->messages_manager_->on_update_message_view_count({dialog_id, MessageId(ServerMessageId(update->id_))},
-                                                         update->views_);
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelMessageForwards> update,
-                               Promise<Unit> &&promise) {
-  ChannelId channel_id(update->channel_id_);
-  if (!channel_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << channel_id;
-  } else {
-    DialogId dialog_id(channel_id);
-    td_->messages_manager_->on_update_message_forward_count({dialog_id, MessageId(ServerMessageId(update->id_))},
-                                                            update->forwards_);
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelAvailableMessages> update,
-                               Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_channel_max_unavailable_message_id(
-      ChannelId(update->channel_id_), MessageId(ServerMessageId(update->available_min_id_)),
-      "updateChannelAvailableMessages");
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelViewForumAsMessages> update,
-                               Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_dialog_view_as_messages(DialogId(ChannelId(update->channel_id_)), update->enabled_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadChannelDiscussionInbox> update,
-                               Promise<Unit> &&promise) {
-  auto last_read_inbox_message_id = MessageId(ServerMessageId(update->read_max_id_));
-  if (!last_read_inbox_message_id.is_valid()) {
-    LOG(ERROR) << "Receive " << to_string(update);
-    return;
-  }
-  td_->messages_manager_->on_update_read_message_comments(DialogId(ChannelId(update->channel_id_)),
-                                                          MessageId(ServerMessageId(update->top_msg_id_)), MessageId(),
-                                                          last_read_inbox_message_id, MessageId(), -1);
-  if (update->broadcast_id_ != 0) {
-    td_->messages_manager_->on_update_read_message_comments(DialogId(ChannelId(update->broadcast_id_)),
-                                                            MessageId(ServerMessageId(update->broadcast_post_)),
-                                                            MessageId(), last_read_inbox_message_id, MessageId(), -1);
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadChannelDiscussionOutbox> update,
-                               Promise<Unit> &&promise) {
-  auto last_read_outbox_message_id = MessageId(ServerMessageId(update->read_max_id_));
-  if (!last_read_outbox_message_id.is_valid()) {
-    LOG(ERROR) << "Receive " << to_string(update);
-    return;
-  }
-  td_->messages_manager_->on_update_read_message_comments(DialogId(ChannelId(update->channel_id_)),
-                                                          MessageId(ServerMessageId(update->top_msg_id_)), MessageId(),
-                                                          MessageId(), last_read_outbox_message_id, -1);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelPinnedTopic> update, Promise<Unit> &&promise) {
-  td_->forum_topic_manager_->on_update_forum_topic_is_pinned(
-      DialogId(ChannelId(update->channel_id_)), MessageId(ServerMessageId(update->topic_id_)), update->pinned_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelPinnedTopics> update, Promise<Unit> &&promise) {
-  vector<MessageId> top_thread_message_ids;
-  for (auto &server_message_id : update->order_) {
-    auto message_id = MessageId(ServerMessageId(server_message_id));
-    if (!message_id.is_valid()) {
-      LOG(ERROR) << "Receive " << to_string(update);
-      break;
-    }
-    top_thread_message_ids.push_back(message_id);
-  }
-  td_->forum_topic_manager_->on_update_pinned_forum_topics(DialogId(ChannelId(update->channel_id_)),
-                                                           std::move(top_thread_message_ids));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePinnedMessages> update, Promise<Unit> &&promise) {
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  add_pending_pts_update(std::move(update), new_pts, pts_count, Time::now(), std::move(promise),
-                         "updatePinnedMessages");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePinnedChannelMessages> update,
-                               Promise<Unit> &&promise) {
-  DialogId dialog_id(ChannelId(update->channel_id_));
-  int new_pts = update->pts_;
-  int pts_count = update->pts_count_;
-  td_->messages_manager_->add_pending_channel_update(dialog_id, std::move(update), new_pts, pts_count,
-                                                     std::move(promise), "updatePinnedChannelMessages");
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNotifySettings> update, Promise<Unit> &&promise) {
-  switch (update->peer_->get_id()) {
-    case telegram_api::notifyPeer::ID: {
-      auto notify_peer = static_cast<const telegram_api::notifyPeer *>(update->peer_.get());
-      DialogId dialog_id(notify_peer->peer_);
-      if (dialog_id.is_valid()) {
-        td_->messages_manager_->on_update_dialog_notify_settings(dialog_id, std::move(update->notify_settings_),
-                                                                 "updateNotifySettings");
-      } else {
-        LOG(ERROR) << "Receive wrong " << to_string(update);
-      }
-      break;
-    }
-    case telegram_api::notifyUsers::ID:
-      td_->notification_settings_manager_->on_update_scope_notify_settings(NotificationSettingsScope::Private,
-                                                                           std::move(update->notify_settings_));
-      break;
-    case telegram_api::notifyChats::ID:
-      td_->notification_settings_manager_->on_update_scope_notify_settings(NotificationSettingsScope::Group,
-                                                                           std::move(update->notify_settings_));
-      break;
-    case telegram_api::notifyBroadcasts::ID:
-      td_->notification_settings_manager_->on_update_scope_notify_settings(NotificationSettingsScope::Channel,
-                                                                           std::move(update->notify_settings_));
-      break;
-    case telegram_api::notifyForumTopic::ID: {
-      auto notify_peer = static_cast<const telegram_api::notifyForumTopic *>(update->peer_.get());
-      DialogId dialog_id(notify_peer->peer_);
-      auto top_thread_message_id = MessageId(ServerMessageId(notify_peer->top_msg_id_));
-      if (dialog_id.is_valid() && top_thread_message_id.is_valid()) {
-        td_->forum_topic_manager_->on_update_forum_topic_notify_settings(
-            dialog_id, top_thread_message_id, std::move(update->notify_settings_), "updateNotifySettings");
-      } else {
-        LOG(ERROR) << "Receive wrong " << to_string(update);
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePeerSettings> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_get_peer_settings(DialogId(update->peer_), std::move(update->settings_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePeerHistoryTTL> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_dialog_message_ttl(DialogId(update->peer_), MessageTtl(update->ttl_period_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePeerLocated> update, Promise<Unit> &&promise) {
-  // shouldn't be sent by the server
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateWebPage> update, Promise<Unit> &&promise) {
-  td_->web_pages_manager_->on_get_web_page(std::move(update->webpage_), DialogId());
-  add_pending_pts_update(make_tl_object<dummyUpdate>(), update->pts_, update->pts_count_, Time::now(), Promise<Unit>(),
-                         "updateWebPage");
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelWebPage> update, Promise<Unit> &&promise) {
-  td_->web_pages_manager_->on_get_web_page(std::move(update->webpage_), DialogId());
-  DialogId dialog_id(ChannelId(update->channel_id_));
-  td_->messages_manager_->add_pending_channel_update(dialog_id, make_tl_object<dummyUpdate>(), update->pts_,
-                                                     update->pts_count_, Promise<Unit>(), "updateChannelWebPage");
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateMessageReactions> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_message_reactions(
-      {DialogId(update->peer_), MessageId(ServerMessageId(update->msg_id_))}, std::move(update->reactions_),
-      std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateRecentReactions> update, Promise<Unit> &&promise) {
-  td_->reaction_manager_->reload_reaction_list(ReactionListType::Recent, "updateRecentReactions");
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateSavedReactionTags> update, Promise<Unit> &&promise) {
-  td_->reaction_manager_->on_update_saved_reaction_tags(Promise<Unit>());
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePaidReactionPrivacy> update, Promise<Unit> &&promise) {
-  td_->reaction_manager_->on_update_default_paid_reaction_type(PaidReactionType(td_, update->private_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateAttachMenuBots> update, Promise<Unit> &&promise) {
-  td_->attach_menu_manager_->reload_attach_menu_bots(std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateWebViewResultSent> update, Promise<Unit> &&promise) {
-  td_->web_app_manager_->close_web_view(update->query_id_, std::move(promise));
-  send_closure(G()->td(), &Td::send_update, td_api::make_object<td_api::updateWebAppMessageSent>(update->query_id_));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateFolderPeers> update, Promise<Unit> &&promise) {
-  for (auto &folder_peer : update->folder_peers_) {
-    DialogId dialog_id(folder_peer->peer_);
-    FolderId folder_id(folder_peer->folder_id_);
-    td_->messages_manager_->on_update_dialog_folder_id(dialog_id, folder_id);
-  }
-
-  if (update->pts_ > 0) {
-    add_pending_pts_update(make_tl_object<dummyUpdate>(), update->pts_, update->pts_count_, Time::now(),
-                           Promise<Unit>(), "updateFolderPeers");
-  }
-  promise.set_value(Unit());
-}
-
-int32 UpdatesManager::get_short_update_date() const {
-  int32 now = G()->unix_time();
-  if (short_update_date_ > 0) {
-    return min(short_update_date_, now);
-  }
-  return now;
-}
-
-bool UpdatesManager::have_update_pts_changed(const vector<tl_object_ptr<telegram_api::Update>> &updates) {
-  for (auto &update : updates) {
-    CHECK(update != nullptr);
-    if (update->get_id() == telegram_api::updatePtsChanged::ID) {
-      return true;
-    }
-  }
-  return false;
-}
-
-bool UpdatesManager::check_pts_update_dialog_id(DialogId dialog_id) {
-  switch (dialog_id.get_type()) {
-    case DialogType::User:
-    case DialogType::Chat:
-      return true;
-    case DialogType::Channel:
-    case DialogType::SecretChat:
-    case DialogType::None:
-      return false;
-    default:
-      UNREACHABLE();
-      return false;
-  }
-}
-
-bool UpdatesManager::check_pts_update(const tl_object_ptr<telegram_api::Update> &update) {
-  CHECK(update != nullptr);
-  switch (update->get_id()) {
-    case dummyUpdate::ID:
-    case updateSentMessage::ID:
-    case telegram_api::updateReadMessagesContents::ID:
-    case telegram_api::updateDeleteMessages::ID:
-      return true;
-    case telegram_api::updateNewMessage::ID: {
-      auto update_new_message = static_cast<const telegram_api::updateNewMessage *>(update.get());
-      return check_pts_update_dialog_id(DialogId::get_message_dialog_id(update_new_message->message_));
-    }
-    case telegram_api::updateReadHistoryInbox::ID: {
-      auto update_read_history_inbox = static_cast<const telegram_api::updateReadHistoryInbox *>(update.get());
-      return check_pts_update_dialog_id(DialogId(update_read_history_inbox->peer_));
-    }
-    case telegram_api::updateReadHistoryOutbox::ID: {
-      auto update_read_history_outbox = static_cast<const telegram_api::updateReadHistoryOutbox *>(update.get());
-      return check_pts_update_dialog_id(DialogId(update_read_history_outbox->peer_));
-    }
-    case telegram_api::updateEditMessage::ID: {
-      auto update_edit_message = static_cast<const telegram_api::updateEditMessage *>(update.get());
-      return check_pts_update_dialog_id(DialogId::get_message_dialog_id(update_edit_message->message_));
-    }
-    case telegram_api::updatePinnedMessages::ID: {
-      auto update_pinned_messages = static_cast<const telegram_api::updatePinnedMessages *>(update.get());
-      return check_pts_update_dialog_id(DialogId(update_pinned_messages->peer_));
-    }
-    default:
-      return false;
-  }
-}
-
-bool UpdatesManager::is_pts_update(const telegram_api::Update *update) {
-  switch (update->get_id()) {
-    case telegram_api::updateNewMessage::ID:
-    case telegram_api::updateReadMessagesContents::ID:
-    case telegram_api::updateEditMessage::ID:
-    case telegram_api::updateDeleteMessages::ID:
-    case telegram_api::updateReadHistoryInbox::ID:
-    case telegram_api::updateReadHistoryOutbox::ID:
-    case telegram_api::updateWebPage::ID:
-    case telegram_api::updatePinnedMessages::ID:
-    case telegram_api::updateFolderPeers::ID:
-      return true;
-    default:
-      return false;
-  }
-}
-
-int32 UpdatesManager::get_update_pts(const telegram_api::Update *update) {
-  switch (update->get_id()) {
-    case telegram_api::updateNewMessage::ID:
-      return static_cast<const telegram_api::updateNewMessage *>(update)->pts_;
-    case telegram_api::updateReadMessagesContents::ID:
-      return static_cast<const telegram_api::updateReadMessagesContents *>(update)->pts_;
-    case telegram_api::updateEditMessage::ID:
-      return static_cast<const telegram_api::updateEditMessage *>(update)->pts_;
-    case telegram_api::updateDeleteMessages::ID:
-      return static_cast<const telegram_api::updateDeleteMessages *>(update)->pts_;
-    case telegram_api::updateReadHistoryInbox::ID:
-      return static_cast<const telegram_api::updateReadHistoryInbox *>(update)->pts_;
-    case telegram_api::updateReadHistoryOutbox::ID:
-      return static_cast<const telegram_api::updateReadHistoryOutbox *>(update)->pts_;
-    case telegram_api::updateWebPage::ID:
-      return static_cast<const telegram_api::updateWebPage *>(update)->pts_;
-    case telegram_api::updatePinnedMessages::ID:
-      return static_cast<const telegram_api::updatePinnedMessages *>(update)->pts_;
-    case telegram_api::updateFolderPeers::ID:
-      return static_cast<const telegram_api::updateFolderPeers *>(update)->pts_;
-    default:
-      return 0;
-  }
-}
-
-bool UpdatesManager::is_qts_update(const telegram_api::Update *update) {
-  switch (update->get_id()) {
-    case telegram_api::updateNewEncryptedMessage::ID:
-    case telegram_api::updateMessagePollVote::ID:
-    case telegram_api::updateBotStopped::ID:
-    case telegram_api::updateChatParticipant::ID:
-    case telegram_api::updateChannelParticipant::ID:
-    case telegram_api::updateBotChatInviteRequester::ID:
-    case telegram_api::updateBotChatBoost::ID:
-    case telegram_api::updateBotMessageReaction::ID:
-    case telegram_api::updateBotMessageReactions::ID:
-    case telegram_api::updateBotBusinessConnect::ID:
-    case telegram_api::updateBotNewBusinessMessage::ID:
-    case telegram_api::updateBotEditBusinessMessage::ID:
-    case telegram_api::updateBotDeleteBusinessMessage::ID:
-    case telegram_api::updateBotPurchasedPaidMedia::ID:
-      return true;
-    default:
-      return false;
-  }
-}
-
-int32 UpdatesManager::get_update_qts(const telegram_api::Update *update) {
-  switch (update->get_id()) {
-    case telegram_api::updateNewEncryptedMessage::ID:
-      return static_cast<const telegram_api::updateNewEncryptedMessage *>(update)->qts_;
-    case telegram_api::updateMessagePollVote::ID:
-      return static_cast<const telegram_api::updateMessagePollVote *>(update)->qts_;
-    case telegram_api::updateBotStopped::ID:
-      return static_cast<const telegram_api::updateBotStopped *>(update)->qts_;
-    case telegram_api::updateChatParticipant::ID:
-      return static_cast<const telegram_api::updateChatParticipant *>(update)->qts_;
-    case telegram_api::updateChannelParticipant::ID:
-      return static_cast<const telegram_api::updateChannelParticipant *>(update)->qts_;
-    case telegram_api::updateBotChatInviteRequester::ID:
-      return static_cast<const telegram_api::updateBotChatInviteRequester *>(update)->qts_;
-    case telegram_api::updateBotChatBoost::ID:
-      return static_cast<const telegram_api::updateBotChatBoost *>(update)->qts_;
-    case telegram_api::updateBotMessageReaction::ID:
-      return static_cast<const telegram_api::updateBotMessageReaction *>(update)->qts_;
-    case telegram_api::updateBotMessageReactions::ID:
-      return static_cast<const telegram_api::updateBotMessageReactions *>(update)->qts_;
-    case telegram_api::updateBotBusinessConnect::ID:
-      return static_cast<const telegram_api::updateBotBusinessConnect *>(update)->qts_;
-    case telegram_api::updateBotNewBusinessMessage::ID:
-      return static_cast<const telegram_api::updateBotNewBusinessMessage *>(update)->qts_;
-    case telegram_api::updateBotEditBusinessMessage::ID:
-      return static_cast<const telegram_api::updateBotEditBusinessMessage *>(update)->qts_;
-    case telegram_api::updateBotDeleteBusinessMessage::ID:
-      return static_cast<const telegram_api::updateBotDeleteBusinessMessage *>(update)->qts_;
-    case telegram_api::updateBotPurchasedPaidMedia::ID:
-      return static_cast<const telegram_api::updateBotPurchasedPaidMedia *>(update)->qts_;
-    default:
-      return 0;
-  }
-}
-
-bool UpdatesManager::is_channel_pts_update(const telegram_api::Update *update) {
-  switch (update->get_id()) {
-    case telegram_api::updateNewChannelMessage::ID:
-    case telegram_api::updateEditChannelMessage::ID:
-    case telegram_api::updateDeleteChannelMessages::ID:
-    case telegram_api::updatePinnedChannelMessages::ID:
-      return true;
-    default:
-      return false;
-  }
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateUserTyping> update, Promise<Unit> &&promise) {
-  DialogId dialog_id(UserId(update->user_id_));
-  td_->dialog_action_manager_->on_dialog_action(dialog_id, MessageId(), dialog_id,
-                                                DialogAction(std::move(update->action_)), get_short_update_date());
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChatUserTyping> update, Promise<Unit> &&promise) {
-  td_->dialog_action_manager_->on_dialog_action(DialogId(ChatId(update->chat_id_)), MessageId(),
-                                                DialogId(update->from_id_), DialogAction(std::move(update->action_)),
-                                                get_short_update_date());
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelUserTyping> update, Promise<Unit> &&promise) {
-  td_->dialog_action_manager_->on_dialog_action(
-      DialogId(ChannelId(update->channel_id_)), MessageId(ServerMessageId(update->top_msg_id_)),
-      DialogId(update->from_id_), DialogAction(std::move(update->action_)), get_short_update_date());
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateEncryptedChatTyping> update, Promise<Unit> &&promise) {
-  SecretChatId secret_chat_id(update->chat_id_);
-  UserId user_id = td_->user_manager_->get_secret_chat_user_id(secret_chat_id);
-  td_->dialog_action_manager_->on_dialog_action(DialogId(secret_chat_id), MessageId(), DialogId(user_id),
-                                                DialogAction::get_typing_action(), get_short_update_date());
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateUserStatus> update, Promise<Unit> &&promise) {
-  td_->user_manager_->on_update_user_online(UserId(update->user_id_), std::move(update->status_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateUserName> update, Promise<Unit> &&promise) {
-  td_->user_manager_->on_update_user_name(UserId(update->user_id_), std::move(update->first_name_),
-                                          std::move(update->last_name_));
-  td_->user_manager_->on_update_user_usernames(UserId(update->user_id_),
-                                               Usernames{string(), std::move(update->usernames_)});
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateUserPhone> update, Promise<Unit> &&promise) {
-  td_->user_manager_->on_update_user_phone_number(UserId(update->user_id_), std::move(update->phone_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateUser> update, Promise<Unit> &&promise) {
-  td_->user_manager_->invalidate_user_full(UserId(update->user_id_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateUserEmojiStatus> update, Promise<Unit> &&promise) {
-  td_->user_manager_->on_update_user_emoji_status(UserId(update->user_id_), std::move(update->emoji_status_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateRecentEmojiStatuses> update, Promise<Unit> &&promise) {
-  get_recent_emoji_statuses(td_, Auto());
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePeerBlocked> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_dialog_is_blocked(DialogId(update->peer_id_), update->blocked_,
-                                                      update->blocked_my_stories_from_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotCommands> update, Promise<Unit> &&promise) {
-  td_->dialog_manager_->on_update_dialog_bot_commands(DialogId(update->peer_), UserId(update->bot_id_),
-                                                      std::move(update->commands_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotMenuButton> update, Promise<Unit> &&promise) {
-  td_->user_manager_->on_update_bot_menu_button(UserId(update->bot_id_), std::move(update->button_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChatParticipants> update, Promise<Unit> &&promise) {
-  td_->chat_manager_->on_get_chat_participants(std::move(update->participants_), true);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChatParticipantAdd> update, Promise<Unit> &&promise) {
-  td_->chat_manager_->on_update_chat_add_user(ChatId(update->chat_id_), UserId(update->inviter_id_),
-                                              UserId(update->user_id_), update->date_, update->version_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChatParticipantAdmin> update,
-                               Promise<Unit> &&promise) {
-  td_->chat_manager_->on_update_chat_edit_administrator(ChatId(update->chat_id_), UserId(update->user_id_),
-                                                        update->is_admin_, update->version_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChatParticipantDelete> update,
-                               Promise<Unit> &&promise) {
-  td_->chat_manager_->on_update_chat_delete_user(ChatId(update->chat_id_), UserId(update->user_id_), update->version_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChatDefaultBannedRights> update,
-                               Promise<Unit> &&promise) {
-  DialogId dialog_id(update->peer_);
-  auto version = update->version_;
-  switch (dialog_id.get_type()) {
-    case DialogType::Chat:
-      td_->chat_manager_->on_update_chat_default_permissions(
-          dialog_id.get_chat_id(), RestrictedRights(update->default_banned_rights_, ChannelType::Unknown), version);
-      break;
-    case DialogType::Channel:
-      LOG_IF(ERROR, version != 0) << "Receive version " << version << " in " << dialog_id;
-      td_->chat_manager_->on_update_channel_default_permissions(
-          dialog_id.get_channel_id(), RestrictedRights(update->default_banned_rights_, ChannelType::Megagroup));
-      break;
-    case DialogType::None:
-    case DialogType::User:
-    case DialogType::SecretChat:
-    default:
-      LOG(ERROR) << "Receive updateChatDefaultBannedRights in " << dialog_id;
-      break;
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDraftMessage> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_dialog_draft_message(
-      DialogId(update->peer_), MessageId(ServerMessageId(update->top_msg_id_)), std::move(update->draft_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDialogPinned> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_dialog_is_pinned(FolderId(update->folder_id_), DialogId(update->peer_),
-                                                     update->pinned_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePinnedDialogs> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_pinned_dialogs(FolderId(update->folder_id_));  // TODO use update->order_
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateSavedDialogPinned> update, Promise<Unit> &&promise) {
-  td_->saved_messages_manager_->reload_pinned_saved_messages_topics();
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePinnedSavedDialogs> update, Promise<Unit> &&promise) {
-  td_->saved_messages_manager_->reload_pinned_saved_messages_topics();
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDialogUnreadMark> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_dialog_is_marked_as_unread(DialogId(update->peer_), update->unread_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDialogFilter> update, Promise<Unit> &&promise) {
-  td_->dialog_filter_manager_->on_update_dialog_filters(std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDialogFilters> update, Promise<Unit> &&promise) {
-  td_->dialog_filter_manager_->on_update_dialog_filters(std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDialogFilterOrder> update, Promise<Unit> &&promise) {
-  td_->dialog_filter_manager_->on_update_dialog_filters(std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDcOptions> update, Promise<Unit> &&promise) {
-  send_closure(G()->config_manager(), &ConfigManager::on_dc_options_update, DcOptions(update->dc_options_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotInlineQuery> update, Promise<Unit> &&promise) {
-  td_->inline_queries_manager_->on_new_query(update->query_id_, UserId(update->user_id_), Location(td_, update->geo_),
-                                             std::move(update->peer_type_), update->query_, update->offset_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotInlineSend> update, Promise<Unit> &&promise) {
-  td_->inline_queries_manager_->on_chosen_result(UserId(update->user_id_), Location(td_, update->geo_), update->query_,
-                                                 update->id_, std::move(update->msg_id_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotCallbackQuery> update, Promise<Unit> &&promise) {
-  td_->callback_queries_manager_->on_new_query(update->query_id_, UserId(update->user_id_), DialogId(update->peer_),
-                                               MessageId(ServerMessageId(update->msg_id_)), std::move(update->data_),
-                                               update->chat_instance_, std::move(update->game_short_name_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateInlineBotCallbackQuery> update,
-                               Promise<Unit> &&promise) {
-  td_->callback_queries_manager_->on_new_inline_query(update->query_id_, UserId(update->user_id_),
-                                                      std::move(update->msg_id_), std::move(update->data_),
-                                                      update->chat_instance_, std::move(update->game_short_name_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBusinessBotCallbackQuery> update,
-                               Promise<Unit> &&promise) {
-  td_->callback_queries_manager_->on_new_business_query(
-      update->query_id_, UserId(update->user_id_), std::move(update->connection_id_), std::move(update->message_),
-      std::move(update->reply_to_message_), std::move(update->data_), update->chat_instance_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateFavedStickers> update, Promise<Unit> &&promise) {
-  td_->stickers_manager_->reload_favorite_stickers(true);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateSavedGifs> update, Promise<Unit> &&promise) {
-  td_->animations_manager_->reload_saved_animations(true);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateConfig> update, Promise<Unit> &&promise) {
-  send_closure(td_->config_manager_, &ConfigManager::request_config, false);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePtsChanged> update, Promise<Unit> &&promise) {
-  if (td_->option_manager_->get_option_integer("session_count") > 1) {
-    auto old_pts = get_pts();
-    auto new_pts = 1;
-    if (old_pts != new_pts) {
-      LOG(WARNING) << "PTS changes from " << old_pts << " from updatePtsChanged";
-      save_pts(new_pts);
-      add_pts(new_pts).set_value(Unit());
-      get_difference("updatePtsChanged");
-    }
-  } else {
-    set_pts(std::numeric_limits<int32>::max(), "updatePtsChanged").set_value(Unit());
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateEncryption> update, Promise<Unit> &&promise) {
-  send_closure(td_->secret_chats_manager_, &SecretChatsManager::on_update_chat, std::move(update));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNewEncryptedMessage> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateEncryptedMessagesRead> update,
-                               Promise<Unit> &&promise) {
-  td_->messages_manager_->read_secret_chat_outbox(SecretChatId(update->chat_id_), update->max_date_, update->date_);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePrivacy> update, Promise<Unit> &&promise) {
-  td_->privacy_manager_->on_update_privacy(std::move(update));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNewStickerSet> update, Promise<Unit> &&promise) {
-  td_->stickers_manager_->on_get_messages_sticker_set(StickerSetId(), std::move(update->stickerset_), true,
-                                                      "updateNewStickerSet");
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateStickerSets> update, Promise<Unit> &&promise) {
-  auto sticker_type = get_sticker_type(update->masks_, update->emojis_);
-  td_->stickers_manager_->on_update_sticker_sets(sticker_type);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateStickerSetsOrder> update, Promise<Unit> &&promise) {
-  auto sticker_type = get_sticker_type(update->masks_, update->emojis_);
-  td_->stickers_manager_->on_update_sticker_sets_order(sticker_type,
-                                                       StickersManager::convert_sticker_set_ids(update->order_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateMoveStickerSetToTop> update, Promise<Unit> &&promise) {
-  auto sticker_type = get_sticker_type(update->masks_, update->emojis_);
-  td_->stickers_manager_->on_update_move_sticker_set_to_top(sticker_type, StickerSetId(update->stickerset_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadFeaturedStickers> update,
-                               Promise<Unit> &&promise) {
-  td_->stickers_manager_->reload_featured_sticker_sets(StickerType::Regular, true);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadFeaturedEmojiStickers> update,
-                               Promise<Unit> &&promise) {
-  td_->stickers_manager_->reload_featured_sticker_sets(StickerType::CustomEmoji, true);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateRecentStickers> update, Promise<Unit> &&promise) {
-  td_->stickers_manager_->reload_recent_stickers(false, true);
-  td_->stickers_manager_->reload_recent_stickers(true, true);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotShippingQuery> update, Promise<Unit> &&promise) {
-  UserId user_id(update->user_id_);
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive shipping query from invalid " << user_id;
-  } else {
-    CHECK(update->shipping_address_ != nullptr);
-
-    send_closure(
-        G()->td(), &Td::send_update,
-        make_tl_object<td_api::updateNewShippingQuery>(
-            update->query_id_, td_->user_manager_->get_user_id_object(user_id, "updateNewShippingQuery"),
-            update->payload_.as_slice().str(),
-            get_address_object(get_address(std::move(update->shipping_address_)))));  // TODO use convert_address
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotPrecheckoutQuery> update, Promise<Unit> &&promise) {
-  UserId user_id(update->user_id_);
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive pre-checkout query from invalid " << user_id;
-  } else if (update->total_amount_ <= 0 || !check_currency_amount(update->total_amount_)) {
-    LOG(ERROR) << "Receive pre-checkout query with invalid total amount " << update->total_amount_;
-  } else {
-    send_closure(G()->td(), &Td::send_update,
-                 make_tl_object<td_api::updateNewPreCheckoutQuery>(
-                     update->query_id_, td_->user_manager_->get_user_id_object(user_id, "updateNewPreCheckoutQuery"),
-                     update->currency_, update->total_amount_, update->payload_.as_slice().str(),
-                     update->shipping_option_id_, get_order_info_object(get_order_info(std::move(update->info_)))));
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotWebhookJSON> update, Promise<Unit> &&promise) {
-  send_closure(G()->td(), &Td::send_update, make_tl_object<td_api::updateNewCustomEvent>(update->data_->data_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotWebhookJSONQuery> update, Promise<Unit> &&promise) {
-  send_closure(G()->td(), &Td::send_update,
-               make_tl_object<td_api::updateNewCustomQuery>(update->query_id_, update->data_->data_, update->timeout_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePhoneCall> update, Promise<Unit> &&promise) {
-  send_closure(G()->call_manager(), &CallManager::update_call, std::move(update));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePhoneCallSignalingData> update,
-                               Promise<Unit> &&promise) {
-  send_closure(G()->call_manager(), &CallManager::update_call_signaling_data, update->phone_call_id_,
-               update->data_.as_slice().str());
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateGroupCallConnection> update, Promise<Unit> &&promise) {
-  if (update->presentation_) {
-    LOG(ERROR) << "Receive unexpected updateGroupCallConnection";
-  } else {
-    send_closure(G()->group_call_manager(), &GroupCallManager::on_update_group_call_connection,
-                 std::move(update->params_->data_));
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateGroupCall> update, Promise<Unit> &&promise) {
-  DialogId dialog_id(ChatId(update->chat_id_));
-  if (dialog_id != DialogId() && !td_->dialog_manager_->have_dialog_force(dialog_id, "updateGroupCall")) {
-    dialog_id = DialogId(ChannelId(update->chat_id_));
-    if (!td_->dialog_manager_->have_dialog_force(dialog_id, "updateGroupCall")) {
-      dialog_id = DialogId();
-    }
-  }
-  send_closure(G()->group_call_manager(), &GroupCallManager::on_update_group_call, std::move(update->call_), dialog_id);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateGroupCallParticipants> update,
-                               Promise<Unit> &&promise) {
-  send_closure(G()->group_call_manager(), &GroupCallManager::on_update_group_call_participants,
-               InputGroupCallId(update->call_), std::move(update->participants_), update->version_, false);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateContactsReset> update, Promise<Unit> &&promise) {
-  td_->user_manager_->on_update_contacts_reset();
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateLangPackTooLong> update, Promise<Unit> &&promise) {
-  send_closure(G()->language_pack_manager(), &LanguagePackManager::on_language_pack_too_long,
-               std::move(update->lang_code_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateLangPack> update, Promise<Unit> &&promise) {
-  send_closure(G()->language_pack_manager(), &LanguagePackManager::on_update_language_pack,
-               std::move(update->difference_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateGeoLiveViewed> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_live_location_viewed(
-      {DialogId(update->peer_), MessageId(ServerMessageId(update->msg_id_))});
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateMessageExtendedMedia> update,
-                               Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_message_extended_media(
-      {DialogId(update->peer_), MessageId(ServerMessageId(update->msg_id_))}, std::move(update->extended_media_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateMessagePoll> update, Promise<Unit> &&promise) {
-  td_->poll_manager_->on_get_poll(PollId(update->poll_id_), std::move(update->poll_), std::move(update->results_),
-                                  "updateMessagePoll");
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateMessagePollVote> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNewScheduledMessage> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_get_message(std::move(update->message_), true, false, true, "updateNewScheduledMessage");
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDeleteScheduledMessages> update,
-                               Promise<Unit> &&promise) {
-  vector<ScheduledServerMessageId> message_ids = transform(update->messages_, [](int32 scheduled_server_message_id) {
-    return ScheduledServerMessageId(scheduled_server_message_id);
-  });
-  auto dialog_id = DialogId(update->peer_);
-  td_->messages_manager_->on_update_delete_scheduled_messages(dialog_id, std::move(message_ids));
-  if (!td_->auth_manager_->is_bot()) {
-    for (auto message_id : update->sent_messages_) {
-      td_->messages_manager_->on_update_message_video_published(
-          {DialogId(dialog_id), MessageId(ServerMessageId(message_id))});
-    }
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateLoginToken> update, Promise<Unit> &&promise) {
-  LOG(INFO) << "Ignore updateLoginToken after authorization";
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotStopped> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChatParticipant> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateChannelParticipant> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotChatInviteRequester> update,
-                               Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotChatBoost> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotMessageReaction> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotMessageReactions> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotPurchasedPaidMedia> update,
-                               Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateTheme> update, Promise<Unit> &&promise) {
-  td_->theme_manager_->on_update_theme(std::move(update->theme_), std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePeerWallpaper> update, Promise<Unit> &&promise) {
-  auto dialog_id = DialogId(update->peer_);
-  if (dialog_id.get_type() == DialogType::User) {
-    td_->user_manager_->on_update_user_wallpaper_overridden(dialog_id.get_user_id(), update->wallpaper_overridden_);
-  }
-  td_->messages_manager_->on_update_dialog_background(dialog_id, std::move(update->wallpaper_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updatePendingJoinRequests> update, Promise<Unit> &&promise) {
-  td_->messages_manager_->on_update_dialog_pending_join_requests(DialogId(update->peer_), update->requests_pending_,
-                                                                 std::move(update->recent_requesters_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateSavedRingtones> update, Promise<Unit> &&promise) {
-  td_->notification_settings_manager_->reload_saved_ringtones(std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateTranscribedAudio> update, Promise<Unit> &&promise) {
-  td_->transcription_manager_->on_update_transcribed_audio(std::move(update));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateAutoSaveSettings> update, Promise<Unit> &&promise) {
-  td_->autosave_manager_->reload_autosave_settings();
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateStory> update, Promise<Unit> &&promise) {
-  td_->story_manager_->on_get_story(DialogId(update->peer_), std::move(update->story_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateReadStories> update, Promise<Unit> &&promise) {
-  td_->story_manager_->on_update_read_stories(DialogId(update->peer_), StoryId(update->max_id_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateStoriesStealthMode> update, Promise<Unit> &&promise) {
-  td_->story_manager_->on_update_story_stealth_mode(std::move(update->stealth_mode_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateSentStoryReaction> update, Promise<Unit> &&promise) {
-  td_->story_manager_->on_update_story_chosen_reaction_type(DialogId(update->peer_), StoryId(update->story_id_),
-                                                            ReactionType(update->reaction_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateStoryID> update, Promise<Unit> &&promise) {
-  LOG(ERROR) << "Receive not in getDifference and not in on_pending_updates " << to_string(update);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNewAuthorization> update, Promise<Unit> &&promise) {
-  if (update->unconfirmed_) {
-    td_->account_manager_->on_new_unconfirmed_authorization(update->hash_, update->date_, std::move(update->device_),
-                                                            std::move(update->location_));
-  } else {
-    td_->account_manager_->on_confirm_authorization(update->hash_);
-  }
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateSmsJob> update, Promise<Unit> &&promise) {
-  LOG(ERROR) << "Receive " << to_string(update);
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateQuickReplies> update, Promise<Unit> &&promise) {
-  td_->quick_reply_manager_->reload_quick_reply_shortcuts();
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNewQuickReply> update, Promise<Unit> &&promise) {
-  td_->quick_reply_manager_->reload_quick_reply_shortcuts();
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDeleteQuickReply> update, Promise<Unit> &&promise) {
-  td_->quick_reply_manager_->reload_quick_reply_shortcuts();
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateQuickReplyMessage> update, Promise<Unit> &&promise) {
-  td_->quick_reply_manager_->update_quick_reply_message(std::move(update->message_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateDeleteQuickReplyMessages> update,
-                               Promise<Unit> &&promise) {
-  vector<MessageId> message_ids;
-  for (auto message : update->messages_) {
-    message_ids.push_back(MessageId(ServerMessageId(message)));
-  }
-  td_->quick_reply_manager_->delete_quick_reply_messages_from_updates(QuickReplyShortcutId(update->shortcut_id_),
-                                                                      std::move(message_ids));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotBusinessConnect> update, Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotNewBusinessMessage> update,
-                               Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotEditBusinessMessage> update,
-                               Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBotDeleteBusinessMessage> update,
-                               Promise<Unit> &&promise) {
-  auto qts = update->qts_;
-  add_pending_qts_update(std::move(update), qts, std::move(promise));
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateBroadcastRevenueTransactions> update,
-                               Promise<Unit> &&promise) {
-  td_->statistics_manager_->on_update_dialog_revenue_transactions(DialogId(update->peer_),
-                                                                  std::move(update->balances_));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateStarsBalance> update, Promise<Unit> &&promise) {
-  td_->star_manager_->on_update_owned_star_amount(StarAmount(std::move(update->balance_), true));
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateStarsRevenueStatus> update, Promise<Unit> &&promise) {
-  td_->star_manager_->on_update_stars_revenue_status(std::move(update));
-  promise.set_value(Unit());
-}
-
-// unsupported updates
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateNewStoryReaction> update, Promise<Unit> &&promise) {
-  promise.set_value(Unit());
-}
-
-void UpdatesManager::on_update(tl_object_ptr<telegram_api::updateSentPhoneCode> update, Promise<Unit> &&promise) {
-  promise.set_value(Unit());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UpdatesManager.h b/third-party/td/td/td/telegram/UpdatesManager.h
deleted file mode 100644
index 25cdb4db65..0000000000
--- a/third-party/td/td/td/telegram/UpdatesManager.h
+++ /dev/null
@@ -1,711 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/InputGroupCallId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/PtsManager.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_storers.h"
-#include "td/utils/TlStorerToString.h"
-
-#include <map>
-#include <set>
-#include <utility>
-
-namespace td {
-
-extern int VERBOSITY_NAME(get_difference);
-
-class Td;
-
-class dummyUpdate final : public telegram_api::Update {
- public:
-  static constexpr int32 ID = 1234567891;
-  int32 get_id() const final {
-    return ID;
-  }
-
-  void store(TlStorerUnsafe &s) const final {
-    UNREACHABLE();
-  }
-
-  void store(TlStorerCalcLength &s) const final {
-    UNREACHABLE();
-  }
-
-  void store(TlStorerToString &s, const char *field_name) const final {
-    s.store_class_begin(field_name, "dummyUpdate");
-    s.store_class_end();
-  }
-};
-
-class updateSentMessage final : public telegram_api::Update {
- public:
-  int64 random_id_;
-  MessageId message_id_;
-  int32 date_;
-  int32 ttl_period_;
-
-  updateSentMessage(int64 random_id, MessageId message_id, int32 date, int32 ttl_period)
-      : random_id_(random_id), message_id_(message_id), date_(date), ttl_period_(ttl_period) {
-  }
-
-  static constexpr int32 ID = 1234567890;
-  int32 get_id() const final {
-    return ID;
-  }
-
-  void store(TlStorerUnsafe &s) const final {
-    UNREACHABLE();
-  }
-
-  void store(TlStorerCalcLength &s) const final {
-    UNREACHABLE();
-  }
-
-  void store(TlStorerToString &s, const char *field_name) const final {
-    s.store_class_begin(field_name, "updateSentMessage");
-    s.store_field("random_id", random_id_);
-    s.store_field("message_id", message_id_.get());
-    s.store_field("date", date_);
-    s.store_field("ttl_period", ttl_period_);
-    s.store_class_end();
-  }
-};
-
-class UpdatesManager final : public Actor {
- public:
-  UpdatesManager(Td *td, ActorShared<> parent);
-
-  void on_get_updates(tl_object_ptr<telegram_api::Updates> &&updates_ptr, Promise<Unit> &&promise);
-
-  void add_pending_pts_update(tl_object_ptr<telegram_api::Update> &&update, int32 new_pts, int32 pts_count,
-                              double receive_time, Promise<Unit> &&promise, const char *source);
-
-  size_t get_pending_pts_update_count();
-
-  static bool are_empty_updates(const telegram_api::Updates *updates_ptr);
-
-  static FlatHashSet<int64> get_sent_messages_random_ids(const telegram_api::Updates *updates_ptr);
-
-  static const telegram_api::Message *get_message_by_random_id(const telegram_api::Updates *updates_ptr,
-                                                               DialogId dialog_id, int64 random_id);
-
-  // [Message, is_scheduled]
-  static vector<std::pair<const telegram_api::Message *, bool>> get_new_messages(
-      const telegram_api::Updates *updates_ptr);
-
-  static vector<InputGroupCallId> get_update_new_group_call_ids(const telegram_api::Updates *updates_ptr);
-
-  void process_updates_users_and_chats(telegram_api::Updates *updates_ptr);
-
-  static string extract_join_group_call_presentation_params(telegram_api::Updates *updates_ptr);
-
-  static telegram_api::object_ptr<telegram_api::StoryItem> extract_story(telegram_api::Updates *updates_ptr,
-                                                                         DialogId owner_dialog_id);
-
-  static vector<DialogId> get_update_notify_settings_dialog_ids(const telegram_api::Updates *updates_ptr);
-
-  static vector<DialogId> get_chat_dialog_ids(const telegram_api::Updates *updates_ptr);
-
-  static int32 get_update_edit_message_pts(const telegram_api::Updates *updates_ptr, MessageFullId message_full_id);
-
-  void get_difference(const char *source);
-
-  void schedule_get_difference(const char *source);
-
-  void on_update_from_auth_key_id(uint64 auth_key_id);
-
-  void ping_server();
-
-  void notify_speed_limited(bool is_upload);
-
-  bool running_get_difference() const {
-    return running_get_difference_;
-  }
-
-  void timeout_expired() final;
-
- private:
-  static constexpr int32 FORCED_GET_DIFFERENCE_PTS_DIFF = 100000;
-  static constexpr int32 GAP_TIMEOUT_UPDATE_COUNT = 20;
-  static constexpr double MIN_UNFILLED_GAP_TIME = 0.05;
-  static constexpr double MAX_UNFILLED_GAP_TIME = 0.7;
-  static constexpr double MAX_PTS_SAVE_DELAY = 0.05;
-  static constexpr double UPDATE_APPLY_WARNING_TIME = 0.1;
-  static constexpr bool DROP_PTS_UPDATES = false;
-  static constexpr const char *AFTER_GET_DIFFERENCE_SOURCE = "after get difference";
-
-  class OnUpdate {
-    UpdatesManager *updates_manager_;
-    telegram_api::object_ptr<telegram_api::Update> &update_;
-    mutable Promise<Unit> promise_;
-
-   public:
-    OnUpdate(UpdatesManager *updates_manager, telegram_api::object_ptr<telegram_api::Update> &update,
-             Promise<Unit> &&promise)
-        : updates_manager_(updates_manager), update_(update), promise_(std::move(promise)) {
-    }
-
-    template <class T>
-    void operator()(T &obj) const {
-      CHECK(&*update_ == &obj);
-      updates_manager_->on_update(move_tl_object_as<T>(update_), std::move(promise_));
-    }
-  };
-
-  class PendingPtsUpdate {
-   public:
-    mutable tl_object_ptr<telegram_api::Update> update;
-    int32 pts;
-    int32 pts_count;
-    double receive_time;
-    mutable Promise<Unit> promise;
-
-    PendingPtsUpdate(tl_object_ptr<telegram_api::Update> &&update, int32 pts, int32 pts_count, double receive_time,
-                     Promise<Unit> &&promise)
-        : update(std::move(update))
-        , pts(pts)
-        , pts_count(pts_count)
-        , receive_time(receive_time)
-        , promise(std::move(promise)) {
-    }
-
-    bool operator<(const PendingPtsUpdate &other) const {
-      if (pts != other.pts) {
-        return pts < other.pts;
-      }
-      return other.pts_count < pts_count;
-    }
-  };
-
-  class PendingSeqUpdates {
-   public:
-    int32 seq_begin;
-    int32 seq_end;
-    int32 date;
-    double receive_time;
-    mutable vector<tl_object_ptr<telegram_api::Update>> updates;
-    mutable Promise<Unit> promise;
-
-    PendingSeqUpdates(int32 seq_begin, int32 seq_end, int32 date, double receive_time,
-                      vector<tl_object_ptr<telegram_api::Update>> &&updates, Promise<Unit> &&promise)
-        : seq_begin(seq_begin)
-        , seq_end(seq_end)
-        , date(date)
-        , receive_time(receive_time)
-        , updates(std::move(updates))
-        , promise(std::move(promise)) {
-    }
-
-    bool operator<(const PendingSeqUpdates &other) const {
-      if (seq_begin != other.seq_begin) {
-        return seq_begin < other.seq_begin;
-      }
-      return other.seq_end < seq_end;
-    }
-  };
-
-  class PendingQtsUpdate {
-   public:
-    double receive_time = 0.0;
-    tl_object_ptr<telegram_api::Update> update;
-    vector<Promise<Unit>> promises;
-  };
-
-  Td *td_;
-  ActorShared<> parent_;
-  int32 ref_cnt_ = 1;
-
-  PtsManager pts_manager_;
-  PtsManager qts_manager_;
-  int32 date_ = 0;
-  int32 seq_ = 0;
-  string date_source_ = "nowhere";
-
-  double last_pts_save_time_ = 0;
-  double last_qts_save_time_ = 0;
-  int32 pending_pts_ = 0;
-  int32 pending_qts_ = 0;
-
-  int32 pts_short_gap_ = 0;
-  int32 pts_fixed_short_gap_ = 0;
-  int32 pts_gap_ = 0;
-  int32 pts_diff_ = 0;
-  int32 last_fetched_pts_ = 0;
-
-  int32 qts_gap_ = 0;
-  int32 qts_diff_ = 0;
-
-  int64 being_processed_updates_ = 0;
-
-  int32 short_update_date_ = 0;
-
-  int32 accumulated_pts_count_ = 0;
-  int32 accumulated_pts_ = -1;
-  double last_pts_jump_warning_time_ = 0;
-  double last_pts_gap_time_ = 0;
-
-  std::multiset<PendingPtsUpdate> pending_pts_updates_;    // updates waiting PTS gap fill
-  std::multiset<PendingPtsUpdate> postponed_pts_updates_;  // updates waiting the end of getDifference
-
-  std::multiset<PendingSeqUpdates> postponed_updates_;    // updates received during getDifference
-  std::multiset<PendingSeqUpdates> pending_seq_updates_;  // updates with too big seq
-
-  std::map<int32, PendingQtsUpdate> pending_qts_updates_;  // updates with too big QTS
-
-  Timeout min_pts_gap_timeout_;
-  Timeout pts_gap_timeout_;
-
-  Timeout seq_gap_timeout_;
-
-  Timeout qts_gap_timeout_;
-
-  int32 retry_time_ = 1;
-  Timeout retry_timeout_;
-
-  double next_data_reload_time_ = 0.0;
-  Timeout data_reload_timeout_;
-
-  bool is_ping_sent_ = false;
-
-  bool expect_pts_gap_ = false;
-  bool running_get_difference_ = false;
-  int32 skipped_postponed_updates_after_start_ = 50000;
-  int32 last_confirmed_pts_ = 0;
-  int32 last_confirmed_qts_ = 0;
-  int32 min_postponed_update_pts_ = 0;
-  int32 min_postponed_update_qts_ = 0;
-  double get_difference_start_time_ = 0;  // time from which we started to get difference without success
-  int32 get_difference_retry_count_ = 0;
-
-  struct SessionInfo {
-    uint64 update_count = 0;
-    double first_update_time = 0.0;
-    double last_update_time = 0.0;
-  };
-  FlatHashMap<uint64, SessionInfo> session_infos_;
-
-  double next_notify_speed_limited_[2] = {0.0, 0.0};
-
-  void start_up() final;
-
-  void tear_down() final;
-
-  void hangup_shared() final;
-
-  void hangup() final;
-
-  ActorShared<UpdatesManager> create_reference();
-
-  int32 get_pts() const {
-    return pts_manager_.mem_pts();
-  }
-  int32 get_qts() const {
-    return qts_manager_.mem_pts();
-  }
-  int32 get_date() const {
-    return date_;
-  }
-
-  Promise<> set_pts(int32 pts, const char *source) TD_WARN_UNUSED_RESULT;
-  Promise<> add_pts(int32 pts);
-  void on_pts_ack(PtsManager::PtsId ack_token);
-  void save_pts(int32 pts);
-
-  Promise<> add_qts(int32 qts);
-  void on_qts_ack(PtsManager::PtsId ack_token);
-  void save_qts(int32 qts);
-
-  bool can_postpone_updates() {
-    if (skipped_postponed_updates_after_start_ == 0) {
-      return true;
-    }
-    skipped_postponed_updates_after_start_--;
-    return false;
-  }
-
-  void set_date(int32 date, bool from_update, string date_source);
-
-  int32 get_short_update_date() const;
-
-  void init_state();
-
-  void on_get_updates_state(tl_object_ptr<telegram_api::updates_state> &&state, const char *source);
-
-  void on_get_updates_impl(tl_object_ptr<telegram_api::Updates> updates_ptr, Promise<Unit> promise);
-
-  void on_server_pong(tl_object_ptr<telegram_api::updates_state> &&state);
-
-  void on_get_difference(tl_object_ptr<telegram_api::updates_Difference> &&difference_ptr);
-
-  void process_get_difference_updates(vector<tl_object_ptr<telegram_api::Message>> &&new_messages,
-                                      vector<tl_object_ptr<telegram_api::EncryptedMessage>> &&new_encrypted_messages,
-                                      vector<tl_object_ptr<telegram_api::Update>> &&other_updates);
-
-  void on_pending_update(tl_object_ptr<telegram_api::Update> update, int32 seq, Promise<Unit> &&promise,
-                         const char *source);
-
-  void add_pending_qts_update(tl_object_ptr<telegram_api::Update> &&update, int32 qts, Promise<Unit> &&promise);
-
-  void on_pending_updates(vector<tl_object_ptr<telegram_api::Update>> &&updates, int32 seq_begin, int32 seq_end,
-                          int32 date, double receive_time, Promise<Unit> &&promise, const char *source);
-
-  void on_pending_updates_processed(Result<Unit> result, Promise<Unit> promise);
-
-  void process_updates(vector<tl_object_ptr<telegram_api::Update>> &&updates, bool force_apply,
-                       Promise<Unit> &&promise);
-
-  void postpone_pts_update(tl_object_ptr<telegram_api::Update> &&update, int32 pts, int32 pts_count,
-                           double receive_time, Promise<Unit> &&promise);
-
-  void process_pts_update(tl_object_ptr<telegram_api::Update> &&update);
-
-  void process_seq_updates(int32 seq_end, int32 date, vector<tl_object_ptr<telegram_api::Update>> &&updates,
-                           Promise<Unit> &&promise);
-
-  void process_qts_update(tl_object_ptr<telegram_api::Update> &&update_ptr, int32 qts, Promise<Unit> &&promise);
-
-  void process_all_pending_pts_updates();
-
-  void drop_all_pending_pts_updates();
-
-  void process_postponed_pts_updates();
-
-  void process_pending_pts_updates();
-
-  void process_pending_seq_updates();
-
-  void process_pending_qts_updates();
-
-  static void check_pts_gap(void *td);
-
-  static void fill_pts_gap(void *td);
-
-  static void fill_seq_gap(void *td);
-
-  static void fill_qts_gap(void *td);
-
-  static void fill_get_difference_gap(void *td);
-
-  static void fill_gap(void *td, const string &source);
-
-  void repair_pts_gap();
-
-  void on_get_pts_update(int32 pts, telegram_api::object_ptr<telegram_api::updates_Difference> difference_ptr);
-
-  void set_pts_gap_timeout(double timeout);
-
-  void set_seq_gap_timeout(double timeout);
-
-  void set_qts_gap_timeout(double timeout);
-
-  void run_get_difference(bool is_recursive, const char *source);
-
-  void confirm_pts_qts(int32 qts);
-
-  void on_failed_get_updates_state(Status &&error);
-
-  void on_failed_get_difference(Status &&error);
-
-  void before_get_difference(bool is_initial);
-
-  void after_get_difference();
-
-  void schedule_data_reload();
-
-  static void try_reload_data_static(void *td);
-
-  void try_reload_data();
-
-  void on_data_reloaded();
-
-  uint64 get_most_unused_auth_key_id();
-
-  static vector<int32> get_update_ids(const telegram_api::Updates *updates_ptr);
-
-  static bool have_update_pts_changed(const vector<tl_object_ptr<telegram_api::Update>> &updates);
-
-  static bool check_pts_update_dialog_id(DialogId dialog_id);
-
-  static bool check_pts_update(const tl_object_ptr<telegram_api::Update> &update);
-
-  static bool is_pts_update(const telegram_api::Update *update);
-
-  static int32 get_update_pts(const telegram_api::Update *update);
-
-  static bool is_qts_update(const telegram_api::Update *update);
-
-  static int32 get_update_qts(const telegram_api::Update *update);
-
-  static bool is_channel_pts_update(const telegram_api::Update *update);
-
-  static bool is_additional_service_message(const telegram_api::Message *message);
-
-  static const vector<tl_object_ptr<telegram_api::Update>> *get_updates(const telegram_api::Updates *updates_ptr);
-
-  static vector<tl_object_ptr<telegram_api::Update>> *get_updates(telegram_api::Updates *updates_ptr);
-
-  bool is_acceptable_user(UserId user_id) const;
-
-  bool is_acceptable_chat(ChatId chat_id) const;
-
-  bool is_acceptable_channel(ChannelId channel_id) const;
-
-  bool is_acceptable_peer(const tl_object_ptr<telegram_api::Peer> &peer) const;
-
-  bool is_acceptable_message_entities(const vector<tl_object_ptr<telegram_api::MessageEntity>> &message_entities) const;
-
-  bool is_acceptable_reply_markup(const tl_object_ptr<telegram_api::ReplyMarkup> &reply_markup) const;
-
-  bool is_acceptable_message_reply_header(
-      const telegram_api::object_ptr<telegram_api::MessageReplyHeader> &header) const;
-
-  bool is_acceptable_message_forward_header(
-      const telegram_api::object_ptr<telegram_api::messageFwdHeader> &header) const;
-
-  bool is_acceptable_message_media(const telegram_api::object_ptr<telegram_api::MessageMedia> &media_ptr) const;
-
-  bool is_acceptable_message(const telegram_api::Message *message_ptr) const;
-
-  bool is_acceptable_update(const telegram_api::Update *update) const;
-
-  void on_update(tl_object_ptr<telegram_api::updateNewMessage> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateMessageID> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateReadMessagesContents> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateEditMessage> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateDeleteMessages> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateReadHistoryInbox> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateReadHistoryOutbox> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateNotifySettings> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updatePeerSettings> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updatePeerHistoryTTL> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePeerLocated> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateWebPage> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelWebPage> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateMessageReactions> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateRecentReactions> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateSavedReactionTags> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePaidReactionPrivacy> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateAttachMenuBots> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateWebViewResultSent> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateFolderPeers> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateUserTyping> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChatUserTyping> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelUserTyping> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateEncryptedChatTyping> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateUserStatus> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateUserName> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateUserPhone> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateUser> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateUserEmojiStatus> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateRecentEmojiStatuses> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePeerBlocked> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotCommands> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotMenuButton> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateChatParticipants> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChatParticipantAdd> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChatParticipantAdmin> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChatParticipantDelete> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateChatDefaultBannedRights> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateServiceNotification> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateDcOptions> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateChat> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateNewChannelMessage> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateReadChannelInbox> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateReadChannelOutbox> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelReadMessagesContents> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelTooLong> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannel> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateEditChannelMessage> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateDeleteChannelMessages> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelMessageViews> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelMessageForwards> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelAvailableMessages> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelViewForumAsMessages> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateReadChannelDiscussionInbox> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateReadChannelDiscussionOutbox> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateChannelPinnedTopic> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelPinnedTopics> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePinnedMessages> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updatePinnedChannelMessages> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateDraftMessage> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateDialogPinned> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updatePinnedDialogs> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateDialogUnreadMark> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateSavedDialogPinned> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePinnedSavedDialogs> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateDialogFilter> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateDialogFilters> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateDialogFilterOrder> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotInlineQuery> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotInlineSend> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotCallbackQuery> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateInlineBotCallbackQuery> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBusinessBotCallbackQuery> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateFavedStickers> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateSavedGifs> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateConfig> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePtsChanged> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePrivacy> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateEncryption> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateNewEncryptedMessage> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateEncryptedMessagesRead> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateNewStickerSet> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateStickerSets> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateStickerSetsOrder> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateMoveStickerSetToTop> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateReadFeaturedStickers> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateReadFeaturedEmojiStickers> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateRecentStickers> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotShippingQuery> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotPrecheckoutQuery> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotWebhookJSON> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotWebhookJSONQuery> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePhoneCall> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updatePhoneCallSignalingData> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateGroupCallConnection> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateGroupCall> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateGroupCallParticipants> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateContactsReset> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateLangPackTooLong> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateLangPack> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateGeoLiveViewed> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateMessageExtendedMedia> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateMessagePoll> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateMessagePollVote> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateNewScheduledMessage> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateDeleteScheduledMessages> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateLoginToken> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotStopped> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChatParticipant> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateChannelParticipant> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotChatInviteRequester> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotChatBoost> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotMessageReaction> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotMessageReactions> update, Promise<Unit> &&promise);
-  void on_update(tl_object_ptr<telegram_api::updateBotPurchasedPaidMedia> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateTheme> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePeerWallpaper> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updatePendingJoinRequests> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateSavedRingtones> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateTranscribedAudio> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateAutoSaveSettings> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateStory> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateReadStories> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateStoriesStealthMode> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateSentStoryReaction> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateStoryID> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateNewAuthorization> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateSmsJob> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateQuickReplies> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateNewQuickReply> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateDeleteQuickReply> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateQuickReplyMessage> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateDeleteQuickReplyMessages> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotBusinessConnect> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotNewBusinessMessage> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotEditBusinessMessage> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBotDeleteBusinessMessage> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateBroadcastRevenueTransactions> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateStarsBalance> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateStarsRevenueStatus> update, Promise<Unit> &&promise);
-
-  // unsupported updates
-
-  void on_update(tl_object_ptr<telegram_api::updateNewStoryReaction> update, Promise<Unit> &&promise);
-
-  void on_update(tl_object_ptr<telegram_api::updateSentPhoneCode> update, Promise<Unit> &&promise);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserId.h b/third-party/td/td/td/telegram/UserId.h
deleted file mode 100644
index 9c0544affe..0000000000
--- a/third-party/td/td/td/telegram/UserId.h
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class UserId {
-  int64 id = 0;
-
- public:
-  static constexpr int64 MAX_USER_ID = (static_cast<int64>(1) << 40) - 1;
-
-  UserId() = default;
-
-  explicit constexpr UserId(int64 user_id) : id(user_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  UserId(T user_id) = delete;
-
-  static vector<UserId> get_user_ids(const vector<int64> &input_user_ids, bool only_valid = false) {
-    vector<UserId> user_ids;
-    user_ids.reserve(input_user_ids.size());
-    for (auto &input_user_id : input_user_ids) {
-      UserId user_id(input_user_id);
-      if (!only_valid || user_id.is_valid()) {
-        user_ids.emplace_back(user_id);
-      }
-    }
-    return user_ids;
-  }
-
-  static vector<int64> get_input_user_ids(const vector<UserId> &user_ids) {
-    vector<int64> input_user_ids;
-    input_user_ids.reserve(user_ids.size());
-    for (auto &user_id : user_ids) {
-      input_user_ids.emplace_back(user_id.get());
-    }
-    return input_user_ids;
-  }
-
-  bool is_valid() const {
-    return 0 < id && id <= MAX_USER_ID;
-  }
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const UserId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const UserId &other) const {
-    return id != other.id;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_long(id);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    if (parser.version() >= static_cast<int32>(Version::Support64BitIds)) {
-      id = parser.fetch_long();
-    } else {
-      id = parser.fetch_int();
-    }
-  }
-};
-
-struct UserIdHash {
-  uint32 operator()(UserId user_id) const {
-    return Hash<int64>()(user_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, UserId user_id) {
-  return string_builder << "user " << user_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserManager.cpp b/third-party/td/td/td/telegram/UserManager.cpp
deleted file mode 100644
index 9a1a5e3af4..0000000000
--- a/third-party/td/td/td/telegram/UserManager.cpp
+++ /dev/null
@@ -1,8783 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/UserManager.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Birthdate.hpp"
-#include "td/telegram/BlockListId.h"
-#include "td/telegram/BotMenuButton.h"
-#include "td/telegram/BotVerification.h"
-#include "td/telegram/BotVerification.hpp"
-#include "td/telegram/BotVerifierSettings.hpp"
-#include "td/telegram/BusinessAwayMessage.h"
-#include "td/telegram/BusinessConnectionManager.h"
-#include "td/telegram/BusinessGreetingMessage.h"
-#include "td/telegram/BusinessInfo.h"
-#include "td/telegram/BusinessInfo.hpp"
-#include "td/telegram/BusinessIntro.h"
-#include "td/telegram/BusinessWorkHours.h"
-#include "td/telegram/ChannelType.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/CommonDialogManager.h"
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/DialogParticipantManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/EmojiStatus.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/GroupCallManager.h"
-#include "td/telegram/InlineQueriesManager.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/logevent/LogEventHelper.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/MessageTtl.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/OnlineManager.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/Outline.h"
-#include "td/telegram/PeerColor.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/PremiumGiftOption.h"
-#include "td/telegram/PremiumGiftOption.hpp"
-#include "td/telegram/ReactionListType.h"
-#include "td/telegram/ReactionManager.h"
-#include "td/telegram/ReferralProgramInfo.hpp"
-#include "td/telegram/SecretChatLayer.h"
-#include "td/telegram/SecretChatsManager.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StarGiftSettings.hpp"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/StickerPhotoSize.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/SuggestedAction.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/UpdatesManager.h"
-#include "td/telegram/VerificationStatus.h"
-#include "td/telegram/Version.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <limits>
-#include <tuple>
-#include <type_traits>
-#include <unordered_map>
-#include <unordered_set>
-#include <utility>
-
-namespace td {
-
-class GetContactsQuery final : public Td::ResultHandler {
- public:
-  void send(int64 hash) {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_getContacts(hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_getContacts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetContactsQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_contacts(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    td_->user_manager_->on_get_contacts_failed(std::move(status));
-  }
-};
-
-class GetContactsBirthdaysQuery final : public Td::ResultHandler {
- public:
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_getBirthdays()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_getBirthdays>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetContactsBirthdaysQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_contact_birthdates(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    td_->user_manager_->on_get_contact_birthdates(nullptr);
-  }
-};
-
-class DismissContactBirthdaysSuggestionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DismissContactBirthdaysSuggestionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::help_dismissSuggestion(
-        telegram_api::make_object<telegram_api::inputPeerEmpty>(), "BIRTHDAY_CONTACTS_TODAY")));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_dismissSuggestion>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetContactsStatusesQuery final : public Td::ResultHandler {
- public:
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_getStatuses()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_getStatuses>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_get_contacts_statuses(result_ptr.move_as_ok());
-  }
-
-  void on_error(Status status) final {
-    if (!G()->is_expected_error(status)) {
-      LOG(ERROR) << "Receive error for GetContactsStatusesQuery: " << status;
-    }
-  }
-};
-
-class AddContactQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-
- public:
-  explicit AddContactQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user, const Contact &contact,
-            bool share_phone_number) {
-    user_id_ = user_id;
-    send_query(G()->net_query_creator().create(
-        telegram_api::contacts_addContact(0, share_phone_number, std::move(input_user), contact.get_first_name(),
-                                          contact.get_last_name(), contact.get_phone_number()),
-        {{DialogId(user_id)}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_addContact>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for AddContactQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-    td_->user_manager_->reload_contacts(true);
-    td_->messages_manager_->reget_dialog_action_bar(DialogId(user_id_), "AddContactQuery");
-  }
-};
-
-class EditCloseFriendsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  vector<UserId> user_ids_;
-
- public:
-  explicit EditCloseFriendsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<UserId> user_ids) {
-    user_ids_ = std::move(user_ids);
-    send_query(G()->net_query_creator().create(
-        telegram_api::contacts_editCloseFriends(UserId::get_input_user_ids(user_ids_))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_editCloseFriends>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_set_close_friends(user_ids_, std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ResolvePhoneQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  string phone_number_;
-
- public:
-  explicit ResolvePhoneQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &phone_number) {
-    phone_number_ = phone_number;
-    send_query(G()->net_query_creator().create(telegram_api::contacts_resolvePhone(phone_number)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_resolvePhone>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for ResolvePhoneQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "ResolvePhoneQuery");
-    // on_get_chats(std::move(ptr->chats_), "ResolvePhoneQuery");
-
-    DialogId dialog_id(ptr->peer_);
-    if (dialog_id.get_type() != DialogType::User) {
-      LOG(ERROR) << "Receive " << dialog_id << " by " << phone_number_;
-      return on_error(Status::Error(500, "Receive invalid response"));
-    }
-
-    td_->user_manager_->on_resolved_phone_number(phone_number_, dialog_id.get_user_id());
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == Slice("PHONE_NOT_OCCUPIED")) {
-      td_->user_manager_->on_resolved_phone_number(phone_number_, UserId());
-      return promise_.set_value(Unit());
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class AcceptContactQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-
- public:
-  explicit AcceptContactQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user) {
-    user_id_ = user_id;
-    send_query(G()->net_query_creator().create(telegram_api::contacts_acceptContact(std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_acceptContact>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for AcceptContactQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-    td_->user_manager_->reload_contacts(true);
-    td_->messages_manager_->reget_dialog_action_bar(DialogId(user_id_), "AcceptContactQuery");
-  }
-};
-
-class ImportContactsQuery final : public Td::ResultHandler {
-  int64 random_id_ = 0;
-  size_t sent_size_ = 0;
-
- public:
-  void send(vector<telegram_api::object_ptr<telegram_api::inputPhoneContact>> &&input_phone_contacts, int64 random_id) {
-    random_id_ = random_id;
-    sent_size_ = input_phone_contacts.size();
-    send_query(G()->net_query_creator().create(telegram_api::contacts_importContacts(std::move(input_phone_contacts))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_importContacts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for ImportContactsQuery: " << to_string(ptr);
-    if (sent_size_ == ptr->retry_contacts_.size()) {
-      return on_error(Status::Error(429, "Too Many Requests: retry after 3600"));
-    }
-    td_->user_manager_->on_imported_contacts(random_id_, std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    td_->user_manager_->on_imported_contacts(random_id_, std::move(status));
-  }
-};
-
-class DeleteContactsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit DeleteContactsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<telegram_api::object_ptr<telegram_api::InputUser>> &&input_users) {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_deleteContacts(std::move(input_users))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_deleteContacts>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteContactsQuery: " << to_string(ptr);
-    td_->updates_manager_->on_get_updates(std::move(ptr), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-    td_->user_manager_->reload_contacts(true);
-  }
-};
-
-class DeleteContactsByPhoneNumberQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  vector<UserId> user_ids_;
-
- public:
-  explicit DeleteContactsByPhoneNumberQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<string> &&user_phone_numbers, vector<UserId> &&user_ids) {
-    if (user_phone_numbers.empty()) {
-      return promise_.set_value(Unit());
-    }
-    user_ids_ = std::move(user_ids);
-    send_query(G()->net_query_creator().create(telegram_api::contacts_deleteByPhones(std::move(user_phone_numbers))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_deleteByPhones>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      return on_error(Status::Error(500, "Some contacts can't be deleted"));
-    }
-
-    td_->user_manager_->on_deleted_contacts(user_ids_);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-    td_->user_manager_->reload_contacts(true);
-  }
-};
-
-class ResetContactsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ResetContactsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::contacts_resetSaved()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::contacts_resetSaved>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    if (!result) {
-      LOG(ERROR) << "Failed to delete imported contacts";
-      td_->user_manager_->reload_contacts(true);
-    } else {
-      td_->user_manager_->on_update_contacts_reset();
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-    td_->user_manager_->reload_contacts(true);
-  }
-};
-
-class UploadProfilePhotoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-  FileUploadId file_upload_id_;
-  bool is_fallback_;
-  bool only_suggest_;
-
- public:
-  explicit UploadProfilePhotoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> &&input_file,
-            bool is_fallback, bool only_suggest, bool is_animation, double main_frame_timestamp) {
-    CHECK(input_file != nullptr);
-    CHECK(file_upload_id.is_valid());
-
-    user_id_ = user_id;
-    file_upload_id_ = file_upload_id;
-    is_fallback_ = is_fallback;
-    only_suggest_ = only_suggest;
-
-    static_assert(static_cast<int32>(telegram_api::photos_uploadProfilePhoto::VIDEO_MASK) ==
-                      static_cast<int32>(telegram_api::photos_uploadContactProfilePhoto::VIDEO_MASK),
-                  "");
-    static_assert(static_cast<int32>(telegram_api::photos_uploadProfilePhoto::VIDEO_START_TS_MASK) ==
-                      static_cast<int32>(telegram_api::photos_uploadContactProfilePhoto::VIDEO_START_TS_MASK),
-                  "");
-    static_assert(static_cast<int32>(telegram_api::photos_uploadProfilePhoto::FILE_MASK) ==
-                      static_cast<int32>(telegram_api::photos_uploadContactProfilePhoto::FILE_MASK),
-                  "");
-
-    int32 flags = 0;
-    telegram_api::object_ptr<telegram_api::InputFile> photo_input_file;
-    telegram_api::object_ptr<telegram_api::InputFile> video_input_file;
-    if (is_animation) {
-      flags |= telegram_api::photos_uploadProfilePhoto::VIDEO_MASK;
-      video_input_file = std::move(input_file);
-
-      if (main_frame_timestamp != 0.0) {
-        flags |= telegram_api::photos_uploadProfilePhoto::VIDEO_START_TS_MASK;
-      }
-    } else {
-      flags |= telegram_api::photos_uploadProfilePhoto::FILE_MASK;
-      photo_input_file = std::move(input_file);
-    }
-    if (td_->user_manager_->is_user_bot(user_id) != td_->auth_manager_->is_bot()) {
-      auto r_input_user = td_->user_manager_->get_input_user(user_id);
-      if (r_input_user.is_error()) {
-        return on_error(r_input_user.move_as_error());
-      }
-      flags |= telegram_api::photos_uploadProfilePhoto::BOT_MASK;
-      send_query(G()->net_query_creator().create(
-          telegram_api::photos_uploadProfilePhoto(flags, is_fallback, r_input_user.move_as_ok(),
-                                                  std::move(photo_input_file), std::move(video_input_file),
-                                                  main_frame_timestamp, nullptr),
-          {{user_id}}));
-    } else if (user_id == td_->user_manager_->get_my_id()) {
-      send_query(G()->net_query_creator().create(
-          telegram_api::photos_uploadProfilePhoto(flags, is_fallback, nullptr, std::move(photo_input_file),
-                                                  std::move(video_input_file), main_frame_timestamp, nullptr),
-          {{"me"}}));
-    } else {
-      auto r_input_user = td_->user_manager_->get_input_user(user_id);
-      if (r_input_user.is_error()) {
-        return on_error(r_input_user.move_as_error());
-      }
-      send_query(G()->net_query_creator().create(
-          telegram_api::photos_uploadContactProfilePhoto(flags, only_suggest, !only_suggest, r_input_user.move_as_ok(),
-                                                         std::move(photo_input_file), std::move(video_input_file),
-                                                         main_frame_timestamp, nullptr),
-          {{user_id}}));
-    }
-  }
-
-  void send(UserId user_id, unique_ptr<StickerPhotoSize> sticker_photo_size, bool is_fallback, bool only_suggest) {
-    CHECK(sticker_photo_size != nullptr);
-    user_id_ = user_id;
-    file_upload_id_ = FileUploadId();
-    is_fallback_ = is_fallback;
-    only_suggest_ = only_suggest;
-
-    if (td_->user_manager_->is_user_bot(user_id) != td_->auth_manager_->is_bot()) {
-      auto r_input_user = td_->user_manager_->get_input_user(user_id);
-      if (r_input_user.is_error()) {
-        return on_error(r_input_user.move_as_error());
-      }
-      int32 flags = telegram_api::photos_uploadProfilePhoto::VIDEO_EMOJI_MARKUP_MASK |
-                    telegram_api::photos_uploadProfilePhoto::BOT_MASK;
-      send_query(G()->net_query_creator().create(
-          telegram_api::photos_uploadProfilePhoto(flags, is_fallback, r_input_user.move_as_ok(), nullptr, nullptr, 0.0,
-                                                  sticker_photo_size->get_input_video_size_object(td_)),
-          {{user_id}}));
-    } else if (user_id == td_->user_manager_->get_my_id()) {
-      int32 flags = telegram_api::photos_uploadProfilePhoto::VIDEO_EMOJI_MARKUP_MASK;
-      send_query(G()->net_query_creator().create(
-          telegram_api::photos_uploadProfilePhoto(flags, is_fallback, nullptr, nullptr, nullptr, 0.0,
-                                                  sticker_photo_size->get_input_video_size_object(td_)),
-          {{"me"}}));
-    } else {
-      auto r_input_user = td_->user_manager_->get_input_user(user_id);
-      if (r_input_user.is_error()) {
-        return on_error(r_input_user.move_as_error());
-      }
-      int32 flags = telegram_api::photos_uploadContactProfilePhoto::VIDEO_EMOJI_MARKUP_MASK;
-      send_query(G()->net_query_creator().create(
-          telegram_api::photos_uploadContactProfilePhoto(flags, only_suggest, !only_suggest, r_input_user.move_as_ok(),
-                                                         nullptr, nullptr, 0.0,
-                                                         sticker_photo_size->get_input_video_size_object(td_)),
-          {{user_id}}));
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    static_assert(std::is_same<telegram_api::photos_uploadProfilePhoto::ReturnType,
-                               telegram_api::photos_uploadContactProfilePhoto::ReturnType>::value,
-                  "");
-    auto result_ptr = fetch_result<telegram_api::photos_uploadProfilePhoto>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!only_suggest_) {
-      td_->user_manager_->on_set_profile_photo(user_id_, result_ptr.move_as_ok(), is_fallback_, 0, std::move(promise_));
-    } else {
-      promise_.set_value(Unit());
-    }
-
-    if (file_upload_id_.is_valid()) {
-      td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-    }
-  }
-
-  void on_error(Status status) final {
-    if (file_upload_id_.is_valid()) {
-      td_->file_manager_->delete_partial_remote_location(file_upload_id_);
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateProfilePhotoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-  FileId file_id_;
-  int64 old_photo_id_;
-  bool is_fallback_;
-  string file_reference_;
-
- public:
-  explicit UpdateProfilePhotoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, FileId file_id, int64 old_photo_id, bool is_fallback,
-            telegram_api::object_ptr<telegram_api::InputPhoto> &&input_photo) {
-    CHECK(input_photo != nullptr);
-    user_id_ = user_id;
-    file_id_ = file_id;
-    old_photo_id_ = old_photo_id;
-    is_fallback_ = is_fallback;
-    file_reference_ = FileManager::extract_file_reference(input_photo);
-    if (user_id != td_->user_manager_->get_my_id()) {
-      auto r_input_user = td_->user_manager_->get_input_user(user_id);
-      if (r_input_user.is_error()) {
-        return on_error(r_input_user.move_as_error());
-      }
-      send_query(G()->net_query_creator().create(
-          telegram_api::photos_updateProfilePhoto(telegram_api::photos_updateProfilePhoto::BOT_MASK, is_fallback,
-                                                  r_input_user.move_as_ok(), std::move(input_photo)),
-          {{user_id}}));
-    } else {
-      send_query(G()->net_query_creator().create(
-          telegram_api::photos_updateProfilePhoto(0, is_fallback, nullptr, std::move(input_photo)), {{"me"}}));
-    }
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::photos_updateProfilePhoto>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_set_profile_photo(user_id_, result_ptr.move_as_ok(), is_fallback_, old_photo_id_,
-                                             std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->auth_manager_->is_bot() && FileReferenceManager::is_file_reference_error(status)) {
-      if (file_id_.is_valid()) {
-        VLOG(file_references) << "Receive " << status << " for " << file_id_;
-        td_->file_manager_->delete_file_reference(file_id_, file_reference_);
-        td_->file_reference_manager_->repair_file_reference(
-            file_id_, PromiseCreator::lambda([user_id = user_id_, file_id = file_id_, is_fallback = is_fallback_,
-                                              old_photo_id = old_photo_id_,
-                                              promise = std::move(promise_)](Result<Unit> result) mutable {
-              if (result.is_error()) {
-                return promise.set_error(Status::Error(400, "Can't find the photo"));
-              }
-
-              send_closure(G()->user_manager(), &UserManager::send_update_profile_photo_query, user_id, file_id,
-                           old_photo_id, is_fallback, std::move(promise));
-            }));
-        return;
-      } else {
-        LOG(ERROR) << "Receive file reference error, but file_id = " << file_id_;
-      }
-    }
-
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteBusinessProfilePhotoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-  bool is_fallback_;
-
- public:
-  explicit DeleteBusinessProfilePhotoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(BusinessConnectionId business_connection_id, bool is_fallback) {
-    user_id_ = td_->business_connection_manager_->get_business_connection_user_id(business_connection_id);
-    is_fallback_ = is_fallback;
-    send_query(G()->net_query_creator().create_with_prefix(
-        business_connection_id.get_invoke_prefix(),
-        telegram_api::photos_updateProfilePhoto(0, is_fallback, nullptr,
-                                                telegram_api::make_object<telegram_api::inputPhotoEmpty>()),
-        td_->business_connection_manager_->get_business_connection_dc_id(business_connection_id), {{user_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::photos_updateProfilePhoto>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_set_profile_photo(user_id_, result_ptr.move_as_ok(), is_fallback_, 0, std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteContactProfilePhotoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-
- public:
-  explicit DeleteContactProfilePhotoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user) {
-    CHECK(input_user != nullptr);
-    user_id_ = user_id;
-
-    send_query(G()->net_query_creator().create(telegram_api::photos_uploadContactProfilePhoto(
-                                                   0, false, true, std::move(input_user), nullptr, nullptr, 0, nullptr),
-                                               {{user_id}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::photos_uploadContactProfilePhoto>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    ptr->photo_ = nullptr;
-    td_->user_manager_->on_set_profile_photo(user_id_, std::move(ptr), false, 0, std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class DeleteProfilePhotoQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int64 profile_photo_id_;
-
- public:
-  explicit DeleteProfilePhotoQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int64 profile_photo_id) {
-    profile_photo_id_ = profile_photo_id;
-    vector<telegram_api::object_ptr<telegram_api::InputPhoto>> input_photo_ids;
-    input_photo_ids.push_back(telegram_api::make_object<telegram_api::inputPhoto>(profile_photo_id, 0, BufferSlice()));
-    send_query(G()->net_query_creator().create(telegram_api::photos_deletePhotos(std::move(input_photo_ids))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::photos_deletePhotos>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for DeleteProfilePhotoQuery: " << result;
-    if (result.size() != 1u) {
-      LOG(WARNING) << "Photo can't be deleted";
-      return on_error(Status::Error(400, "Photo can't be deleted"));
-    }
-
-    td_->user_manager_->on_delete_profile_photo(profile_photo_id_, std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateColorQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  bool for_profile_;
-  AccentColorId accent_color_id_;
-  CustomEmojiId background_custom_emoji_id_;
-
- public:
-  explicit UpdateColorQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool for_profile, AccentColorId accent_color_id, CustomEmojiId background_custom_emoji_id) {
-    for_profile_ = for_profile;
-    accent_color_id_ = accent_color_id;
-    background_custom_emoji_id_ = background_custom_emoji_id;
-    int32 flags = 0;
-    if (accent_color_id.is_valid()) {
-      flags |= telegram_api::account_updateColor::COLOR_MASK;
-    }
-    if (background_custom_emoji_id.is_valid()) {
-      flags |= telegram_api::account_updateColor::BACKGROUND_EMOJI_ID_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateColor(flags, for_profile, accent_color_id.get(), background_custom_emoji_id.get()),
-        {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateColor>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdateColorQuery: " << result_ptr.ok();
-    td_->user_manager_->on_update_accent_color_success(for_profile_, accent_color_id_, background_custom_emoji_id_);
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateProfileQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  int32 flags_;
-  string first_name_;
-  string last_name_;
-  string about_;
-
- public:
-  explicit UpdateProfileQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(int32 flags, const string &first_name, const string &last_name, const string &about) {
-    flags_ = flags;
-    first_name_ = first_name;
-    last_name_ = last_name;
-    about_ = about;
-    send_query(G()->net_query_creator().create(telegram_api::account_updateProfile(flags, first_name, last_name, about),
-                                               {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateProfile>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdateProfileQuery: " << to_string(result_ptr.ok());
-    td_->user_manager_->on_get_user(result_ptr.move_as_ok(), "UpdateProfileQuery");
-    td_->user_manager_->on_update_profile_success(flags_, first_name_, last_name_, about_);
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleUserEmojiStatusPermissionQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-  bool can_manage_emoji_status_;
-
- public:
-  explicit ToggleUserEmojiStatusPermissionQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-            bool can_manage_emoji_status) {
-    user_id_ = user_id;
-    can_manage_emoji_status_ = can_manage_emoji_status;
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_toggleUserEmojiStatusPermission(std::move(input_user), can_manage_emoji_status),
-        {{DialogId(user_id)}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_toggleUserEmojiStatusPermission>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (result_ptr.ok()) {
-      td_->user_manager_->on_update_bot_can_manage_emoji_status(user_id_, can_manage_emoji_status_);
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateUserEmojiStatusQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UpdateUserEmojiStatusQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-            const unique_ptr<EmojiStatus> &emoji_status) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::bots_updateUserEmojiStatus(
-                                            std::move(input_user), EmojiStatus::get_input_emoji_status(emoji_status)),
-                                        {{DialogId(user_id)}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_updateUserEmojiStatus>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USER_PERMISSION_DENIED") {
-      return promise_.set_error(Status::Error(403, "Not enough rights to change the user's emoji status"));
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateUsernameQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UpdateUsernameQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const string &username) {
-    send_query(G()->net_query_creator().create(telegram_api::account_updateUsername(username), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdateUsernameQuery: " << to_string(result_ptr.ok());
-    td_->user_manager_->on_get_user(result_ptr.move_as_ok(), "UpdateUsernameQuery");
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED" && !td_->auth_manager_->is_bot()) {
-      promise_.set_value(Unit());
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleUsernameQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  string username_;
-  bool is_active_;
-
- public:
-  explicit ToggleUsernameQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(string &&username, bool is_active) {
-    username_ = std::move(username);
-    is_active_ = is_active;
-    send_query(G()->net_query_creator().create(telegram_api::account_toggleUsername(username_, is_active_), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_toggleUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for ToggleUsernameQuery: " << result;
-    td_->user_manager_->on_update_username_is_active(td_->user_manager_->get_my_id(), std::move(username_), is_active_,
-                                                     std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED") {
-      td_->user_manager_->on_update_username_is_active(td_->user_manager_->get_my_id(), std::move(username_),
-                                                       is_active_, std::move(promise_));
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderUsernamesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  vector<string> usernames_;
-
- public:
-  explicit ReorderUsernamesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<string> &&usernames) {
-    usernames_ = usernames;
-    send_query(G()->net_query_creator().create(telegram_api::account_reorderUsernames(std::move(usernames)), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_reorderUsernames>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for ReorderUsernamesQuery: " << result;
-    if (!result) {
-      return on_error(Status::Error(500, "Usernames weren't updated"));
-    }
-
-    td_->user_manager_->on_update_active_usernames_order(td_->user_manager_->get_my_id(), std::move(usernames_),
-                                                         std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED") {
-      td_->user_manager_->on_update_active_usernames_order(td_->user_manager_->get_my_id(), std::move(usernames_),
-                                                           std::move(promise_));
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleBotUsernameQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId bot_user_id_;
-  string username_;
-  bool is_active_;
-
- public:
-  explicit ToggleBotUsernameQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, string &&username, bool is_active) {
-    bot_user_id_ = bot_user_id;
-    username_ = std::move(username);
-    is_active_ = is_active;
-    auto r_input_user = td_->user_manager_->get_input_user(bot_user_id_);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_toggleUsername(r_input_user.move_as_ok(), username_, is_active_), {{bot_user_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_toggleUsername>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for ToggleBotUsernameQuery: " << result;
-    td_->user_manager_->on_update_username_is_active(bot_user_id_, std::move(username_), is_active_,
-                                                     std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED") {
-      td_->user_manager_->on_update_username_is_active(bot_user_id_, std::move(username_), is_active_,
-                                                       std::move(promise_));
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ReorderBotUsernamesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId bot_user_id_;
-  vector<string> usernames_;
-
- public:
-  explicit ReorderBotUsernamesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, vector<string> &&usernames) {
-    bot_user_id_ = bot_user_id;
-    usernames_ = usernames;
-    auto r_input_user = td_->user_manager_->get_input_user(bot_user_id_);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_reorderUsernames(r_input_user.move_as_ok(), std::move(usernames)), {{bot_user_id_}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_reorderUsernames>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool result = result_ptr.ok();
-    LOG(DEBUG) << "Receive result for ReorderBotUsernamesQuery: " << result;
-    if (!result) {
-      return on_error(Status::Error(500, "Usernames weren't updated"));
-    }
-
-    td_->user_manager_->on_update_active_usernames_order(bot_user_id_, std::move(usernames_), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    if (status.message() == "USERNAME_NOT_MODIFIED") {
-      td_->user_manager_->on_update_active_usernames_order(bot_user_id_, std::move(usernames_), std::move(promise_));
-      return;
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateBirthdayQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UpdateBirthdayQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const Birthdate &birthdate) {
-    int32 flags = 0;
-    if (!birthdate.is_empty()) {
-      flags |= telegram_api::account_updateBirthday::BIRTHDAY_MASK;
-    }
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateBirthday(flags, birthdate.get_input_birthday()), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateBirthday>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdateBirthdayQuery: " << result_ptr.ok();
-    if (result_ptr.ok()) {
-      promise_.set_value(Unit());
-    } else {
-      promise_.set_error(Status::Error(400, "Failed to change birthdate"));
-    }
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdatePersonalChannelQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  ChannelId channel_id_;
-
- public:
-  explicit UpdatePersonalChannelQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(ChannelId channel_id) {
-    channel_id_ = channel_id;
-    telegram_api::object_ptr<telegram_api::InputChannel> input_channel;
-    if (channel_id == ChannelId()) {
-      input_channel = telegram_api::make_object<telegram_api::inputChannelEmpty>();
-    } else {
-      input_channel = td_->chat_manager_->get_input_channel(channel_id);
-      CHECK(input_channel != nullptr);
-    }
-    send_query(G()->net_query_creator().create(telegram_api::account_updatePersonalChannel(std::move(input_channel)),
-                                               {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updatePersonalChannel>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdatePersonalChannelQuery: " << result_ptr.ok();
-    if (result_ptr.ok()) {
-      promise_.set_value(Unit());
-    } else {
-      promise_.set_error(Status::Error(400, "Failed to change personal chat"));
-    }
-  }
-
-  void on_error(Status status) final {
-    if (channel_id_.is_valid()) {
-      td_->chat_manager_->on_get_channel_error(channel_id_, status, "UpdatePersonalChannelQuery");
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class UpdateEmojiStatusQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit UpdateEmojiStatusQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(const unique_ptr<EmojiStatus> &emoji_status) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::account_updateEmojiStatus(EmojiStatus::get_input_emoji_status(emoji_status)), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_updateEmojiStatus>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for UpdateEmojiStatusQuery: " << result_ptr.ok();
-    if (result_ptr.ok()) {
-      promise_.set_value(Unit());
-    } else {
-      promise_.set_error(Status::Error(400, "Failed to change Premium badge"));
-    }
-  }
-
-  void on_error(Status status) final {
-    get_recent_emoji_statuses(td_, Auto());
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ToggleSponsoredMessagesQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit ToggleSponsoredMessagesQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(bool sponsored_enabled) {
-    send_query(
-        G()->net_query_creator().create(telegram_api::account_toggleSponsoredMessages(sponsored_enabled), {{"me"}}));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::account_toggleSponsoredMessages>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    LOG(DEBUG) << "Receive result for ToggleSponsoredMessagesQuery: " << result_ptr.ok();
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetUsersQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetUsersQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<telegram_api::object_ptr<telegram_api::InputUser>> &&input_users) {
-    send_query(G()->net_query_creator().create(telegram_api::users_getUsers(std::move(input_users))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::users_getUsers>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    td_->user_manager_->on_get_users(result_ptr.move_as_ok(), "GetUsersQuery");
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetFullUserQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit GetFullUserQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> &&input_user) {
-    send_query(G()->net_query_creator().create(telegram_api::users_getFullUser(std::move(input_user))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::users_getFullUser>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(DEBUG) << "Receive result for GetFullUserQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetFullUserQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetFullUserQuery");
-    td_->user_manager_->on_get_user_full(std::move(ptr->full_user_));
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetUserPhotosQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  UserId user_id_;
-  int32 offset_;
-  int32 limit_;
-
- public:
-  explicit GetUserPhotosQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user, int32 offset, int32 limit,
-            int64 photo_id) {
-    user_id_ = user_id;
-    offset_ = offset;
-    limit_ = limit;
-    send_query(G()->net_query_creator().create(
-        telegram_api::photos_getUserPhotos(std::move(input_user), offset, photo_id, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::photos_getUserPhotos>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-
-    LOG(INFO) << "Receive result for GetUserPhotosQuery: " << to_string(ptr);
-    int32 constructor_id = ptr->get_id();
-    if (constructor_id == telegram_api::photos_photos::ID) {
-      auto photos = move_tl_object_as<telegram_api::photos_photos>(ptr);
-
-      td_->user_manager_->on_get_users(std::move(photos->users_), "GetUserPhotosQuery");
-      auto photos_size = narrow_cast<int32>(photos->photos_.size());
-      td_->user_manager_->on_get_user_photos(user_id_, offset_, limit_, photos_size, std::move(photos->photos_));
-    } else {
-      CHECK(constructor_id == telegram_api::photos_photosSlice::ID);
-      auto photos = move_tl_object_as<telegram_api::photos_photosSlice>(ptr);
-
-      td_->user_manager_->on_get_users(std::move(photos->users_), "GetUserPhotosQuery slice");
-      td_->user_manager_->on_get_user_photos(user_id_, offset_, limit_, photos->count_, std::move(photos->photos_));
-    }
-
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetSupportUserQuery final : public Td::ResultHandler {
-  Promise<UserId> promise_;
-
- public:
-  explicit GetSupportUserQuery(Promise<UserId> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send() {
-    send_query(G()->net_query_creator().create(telegram_api::help_getSupport()));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::help_getSupport>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetSupportUserQuery: " << to_string(ptr);
-
-    auto user_id = UserManager::get_user_id(ptr->user_);
-    td_->user_manager_->on_get_user(std::move(ptr->user_), "GetSupportUserQuery");
-
-    promise_.set_value(std::move(user_id));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetIsPremiumRequiredToContactQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-  vector<UserId> user_ids_;
-
- public:
-  explicit GetIsPremiumRequiredToContactQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(vector<UserId> &&user_ids, vector<telegram_api::object_ptr<telegram_api::InputUser>> &&input_users) {
-    user_ids_ = std::move(user_ids);
-    send_query(G()->net_query_creator().create(telegram_api::users_getRequirementsToContact(std::move(input_users))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::users_getRequirementsToContact>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetIsPremiumRequiredToContactQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_is_premium_required_to_contact_users(std::move(user_ids_), std::move(ptr),
-                                                                    std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-template <class StorerT>
-void UserManager::User::store(StorerT &storer) const {
-  using td::store;
-  bool has_last_name = !last_name.empty();
-  bool legacy_has_username = false;
-  bool has_photo = photo.small_file_id.is_valid();
-  bool has_language_code = !language_code.empty();
-  bool have_access_hash = access_hash != -1;
-  bool has_cache_version = cache_version != 0;
-  bool has_is_contact = true;
-  bool has_restriction_reasons = !restriction_reasons.empty();
-  bool has_emoji_status = emoji_status != nullptr;
-  bool has_usernames = !usernames.is_empty();
-  bool has_flags2 = true;
-  bool has_max_active_story_id = max_active_story_id.is_valid();
-  bool has_max_read_story_id = max_read_story_id.is_valid();
-  bool has_max_active_story_id_next_reload_time = max_active_story_id_next_reload_time > Time::now();
-  bool has_accent_color_id = accent_color_id.is_valid();
-  bool has_background_custom_emoji_id = background_custom_emoji_id.is_valid();
-  bool has_profile_accent_color_id = profile_accent_color_id.is_valid();
-  bool has_profile_background_custom_emoji_id = profile_background_custom_emoji_id.is_valid();
-  bool has_bot_active_users = bot_active_users != 0;
-  bool has_bot_verification_icon = bot_verification_icon.is_valid();
-  bool has_paid_message_star_count = paid_message_star_count != 0;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_received);
-  STORE_FLAG(is_verified);
-  STORE_FLAG(is_deleted);
-  STORE_FLAG(is_bot);
-  STORE_FLAG(can_join_groups);
-  STORE_FLAG(can_read_all_group_messages);
-  STORE_FLAG(is_inline_bot);
-  STORE_FLAG(need_location_bot);
-  STORE_FLAG(has_last_name);
-  STORE_FLAG(legacy_has_username);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(false);  // legacy is_restricted
-  STORE_FLAG(has_language_code);
-  STORE_FLAG(have_access_hash);
-  STORE_FLAG(is_support);
-  STORE_FLAG(is_min_access_hash);
-  STORE_FLAG(is_scam);
-  STORE_FLAG(has_cache_version);
-  STORE_FLAG(has_is_contact);
-  STORE_FLAG(is_contact);
-  STORE_FLAG(is_mutual_contact);
-  STORE_FLAG(has_restriction_reasons);
-  STORE_FLAG(need_apply_min_photo);
-  STORE_FLAG(is_fake);
-  STORE_FLAG(can_be_added_to_attach_menu);
-  STORE_FLAG(is_premium);
-  STORE_FLAG(attach_menu_enabled);
-  STORE_FLAG(has_emoji_status);
-  STORE_FLAG(has_usernames);
-  STORE_FLAG(can_be_edited_bot);
-  END_STORE_FLAGS();
-  if (has_flags2) {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_close_friend);
-    STORE_FLAG(stories_hidden);
-    STORE_FLAG(false);
-    STORE_FLAG(has_max_active_story_id);
-    STORE_FLAG(has_max_read_story_id);
-    STORE_FLAG(has_max_active_story_id_next_reload_time);
-    STORE_FLAG(has_accent_color_id);
-    STORE_FLAG(has_background_custom_emoji_id);
-    STORE_FLAG(has_profile_accent_color_id);
-    STORE_FLAG(has_profile_background_custom_emoji_id);
-    STORE_FLAG(contact_require_premium);
-    STORE_FLAG(is_business_bot);
-    STORE_FLAG(has_bot_active_users);
-    STORE_FLAG(has_main_app);
-    STORE_FLAG(has_bot_verification_icon);
-    STORE_FLAG(has_paid_message_star_count);
-    END_STORE_FLAGS();
-  }
-  store(first_name, storer);
-  if (has_last_name) {
-    store(last_name, storer);
-  }
-  store(phone_number, storer);
-  if (have_access_hash) {
-    store(access_hash, storer);
-  }
-  if (has_photo) {
-    store(photo, storer);
-  }
-  store(was_online, storer);
-  if (has_restriction_reasons) {
-    store(restriction_reasons, storer);
-  }
-  if (is_inline_bot) {
-    store(inline_query_placeholder, storer);
-  }
-  if (is_bot) {
-    store(bot_info_version, storer);
-  }
-  if (has_language_code) {
-    store(language_code, storer);
-  }
-  if (has_cache_version) {
-    store(cache_version, storer);
-  }
-  if (has_emoji_status) {
-    store(emoji_status, storer);
-  }
-  if (has_usernames) {
-    store(usernames, storer);
-  }
-  if (has_max_active_story_id) {
-    store(max_active_story_id, storer);
-  }
-  if (has_max_read_story_id) {
-    store(max_read_story_id, storer);
-  }
-  if (has_max_active_story_id_next_reload_time) {
-    store_time(max_active_story_id_next_reload_time, storer);
-  }
-  if (has_accent_color_id) {
-    store(accent_color_id, storer);
-  }
-  if (has_background_custom_emoji_id) {
-    store(background_custom_emoji_id, storer);
-  }
-  if (has_profile_accent_color_id) {
-    store(profile_accent_color_id, storer);
-  }
-  if (has_profile_background_custom_emoji_id) {
-    store(profile_background_custom_emoji_id, storer);
-  }
-  if (has_bot_active_users) {
-    store(bot_active_users, storer);
-  }
-  if (has_bot_verification_icon) {
-    store(bot_verification_icon, storer);
-  }
-  if (has_paid_message_star_count) {
-    store(paid_message_star_count, storer);
-  }
-}
-
-template <class ParserT>
-void UserManager::User::parse(ParserT &parser) {
-  using td::parse;
-  bool has_last_name;
-  bool legacy_has_username;
-  bool has_photo;
-  bool legacy_is_restricted;
-  bool has_language_code;
-  bool have_access_hash;
-  bool has_cache_version;
-  bool has_is_contact;
-  bool has_restriction_reasons;
-  bool has_emoji_status;
-  bool has_usernames;
-  bool has_flags2 = parser.version() >= static_cast<int32>(Version::AddUserFlags2);
-  bool legacy_has_stories = false;
-  bool has_max_active_story_id = false;
-  bool has_max_read_story_id = false;
-  bool has_max_active_story_id_next_reload_time = false;
-  bool has_accent_color_id = false;
-  bool has_background_custom_emoji_id = false;
-  bool has_profile_accent_color_id = false;
-  bool has_profile_background_custom_emoji_id = false;
-  bool has_bot_active_users = false;
-  bool has_bot_verification_icon = false;
-  bool has_paid_message_star_count = false;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_received);
-  PARSE_FLAG(is_verified);
-  PARSE_FLAG(is_deleted);
-  PARSE_FLAG(is_bot);
-  PARSE_FLAG(can_join_groups);
-  PARSE_FLAG(can_read_all_group_messages);
-  PARSE_FLAG(is_inline_bot);
-  PARSE_FLAG(need_location_bot);
-  PARSE_FLAG(has_last_name);
-  PARSE_FLAG(legacy_has_username);
-  PARSE_FLAG(has_photo);
-  PARSE_FLAG(legacy_is_restricted);
-  PARSE_FLAG(has_language_code);
-  PARSE_FLAG(have_access_hash);
-  PARSE_FLAG(is_support);
-  PARSE_FLAG(is_min_access_hash);
-  PARSE_FLAG(is_scam);
-  PARSE_FLAG(has_cache_version);
-  PARSE_FLAG(has_is_contact);
-  PARSE_FLAG(is_contact);
-  PARSE_FLAG(is_mutual_contact);
-  PARSE_FLAG(has_restriction_reasons);
-  PARSE_FLAG(need_apply_min_photo);
-  PARSE_FLAG(is_fake);
-  PARSE_FLAG(can_be_added_to_attach_menu);
-  PARSE_FLAG(is_premium);
-  PARSE_FLAG(attach_menu_enabled);
-  PARSE_FLAG(has_emoji_status);
-  PARSE_FLAG(has_usernames);
-  PARSE_FLAG(can_be_edited_bot);
-  END_PARSE_FLAGS();
-  if (has_flags2) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_close_friend);
-    PARSE_FLAG(stories_hidden);
-    PARSE_FLAG(legacy_has_stories);
-    PARSE_FLAG(has_max_active_story_id);
-    PARSE_FLAG(has_max_read_story_id);
-    PARSE_FLAG(has_max_active_story_id_next_reload_time);
-    PARSE_FLAG(has_accent_color_id);
-    PARSE_FLAG(has_background_custom_emoji_id);
-    PARSE_FLAG(has_profile_accent_color_id);
-    PARSE_FLAG(has_profile_background_custom_emoji_id);
-    PARSE_FLAG(contact_require_premium);
-    PARSE_FLAG(is_business_bot);
-    PARSE_FLAG(has_bot_active_users);
-    PARSE_FLAG(has_main_app);
-    PARSE_FLAG(has_bot_verification_icon);
-    PARSE_FLAG(has_paid_message_star_count);
-    END_PARSE_FLAGS();
-  }
-  parse(first_name, parser);
-  if (has_last_name) {
-    parse(last_name, parser);
-  }
-  if (legacy_has_username) {
-    CHECK(!has_usernames);
-    string username;
-    parse(username, parser);
-    usernames = Usernames(std::move(username), vector<telegram_api::object_ptr<telegram_api::username>>());
-  }
-  parse(phone_number, parser);
-  if (parser.version() < static_cast<int32>(Version::FixMinUsers)) {
-    have_access_hash = is_received;
-  }
-  if (have_access_hash) {
-    parse(access_hash, parser);
-  } else {
-    is_min_access_hash = true;
-  }
-  if (has_photo) {
-    parse(photo, parser);
-  }
-  if (!has_is_contact) {
-    // enum class LinkState : uint8 { Unknown, None, KnowsPhoneNumber, Contact };
-
-    uint32 link_state_inbound;
-    uint32 link_state_outbound;
-    parse(link_state_inbound, parser);
-    parse(link_state_outbound, parser);
-
-    is_contact = link_state_outbound == 3;
-    is_mutual_contact = is_contact && link_state_inbound == 3;
-    is_close_friend = false;
-  }
-  parse(was_online, parser);
-  if (legacy_is_restricted) {
-    string restriction_reason;
-    parse(restriction_reason, parser);
-    restriction_reasons = get_restriction_reasons(restriction_reason);
-  } else if (has_restriction_reasons) {
-    parse(restriction_reasons, parser);
-  }
-  if (is_inline_bot) {
-    parse(inline_query_placeholder, parser);
-  }
-  if (is_bot) {
-    parse(bot_info_version, parser);
-  }
-  if (has_language_code) {
-    parse(language_code, parser);
-  }
-  if (has_cache_version) {
-    parse(cache_version, parser);
-  }
-  if (has_emoji_status) {
-    parse(emoji_status, parser);
-  }
-  if (has_usernames) {
-    CHECK(!legacy_has_username);
-    parse(usernames, parser);
-  }
-  if (has_max_active_story_id) {
-    parse(max_active_story_id, parser);
-  }
-  if (has_max_read_story_id) {
-    parse(max_read_story_id, parser);
-  }
-  if (has_max_active_story_id_next_reload_time) {
-    parse_time(max_active_story_id_next_reload_time, parser);
-  }
-  if (has_accent_color_id) {
-    parse(accent_color_id, parser);
-  }
-  if (has_background_custom_emoji_id) {
-    parse(background_custom_emoji_id, parser);
-  }
-  if (has_profile_accent_color_id) {
-    parse(profile_accent_color_id, parser);
-  }
-  if (has_profile_background_custom_emoji_id) {
-    parse(profile_background_custom_emoji_id, parser);
-  }
-  if (has_bot_active_users) {
-    parse(bot_active_users, parser);
-  }
-  if (has_bot_verification_icon) {
-    parse(bot_verification_icon, parser);
-  }
-  if (has_paid_message_star_count) {
-    parse(paid_message_star_count, parser);
-  }
-
-  if (!check_utf8(first_name)) {
-    LOG(ERROR) << "Have invalid first name \"" << first_name << '"';
-    first_name.clear();
-    cache_version = 0;
-  }
-  if (!check_utf8(last_name)) {
-    LOG(ERROR) << "Have invalid last name \"" << last_name << '"';
-    last_name.clear();
-    cache_version = 0;
-  }
-
-  clean_phone_number(phone_number);
-  if (first_name.empty() && last_name.empty()) {
-    first_name = phone_number;
-  }
-  if (!is_contact && is_mutual_contact) {
-    LOG(ERROR) << "Have invalid flag is_mutual_contact";
-    is_mutual_contact = false;
-    cache_version = 0;
-  }
-  if (!is_contact && is_close_friend) {
-    LOG(ERROR) << "Have invalid flag is_close_friend";
-    is_close_friend = false;
-    cache_version = 0;
-  }
-}
-
-template <class StorerT>
-void UserManager::UserFull::store(StorerT &storer) const {
-  using td::store;
-  bool has_about = !about.empty();
-  bool has_photo = !photo.is_empty();
-  bool has_description = bot_info != nullptr && !bot_info->description.empty();
-  bool has_commands = bot_info != nullptr && !bot_info->commands.empty();
-  bool has_private_forward_name = !private_forward_name.empty();
-  bool has_group_administrator_rights =
-      bot_info != nullptr && bot_info->group_administrator_rights != AdministratorRights();
-  bool has_broadcast_administrator_rights =
-      bot_info != nullptr && bot_info->broadcast_administrator_rights != AdministratorRights();
-  bool has_menu_button = bot_info != nullptr && bot_info->menu_button != nullptr;
-  bool has_description_photo = bot_info != nullptr && !bot_info->description_photo.is_empty();
-  bool has_description_animation = bot_info != nullptr && bot_info->description_animation_file_id.is_valid();
-  bool has_personal_photo = !personal_photo.is_empty();
-  bool has_fallback_photo = !fallback_photo.is_empty();
-  bool has_business_info = business_info != nullptr && !business_info->is_empty();
-  bool has_birthdate = !birthdate.is_empty();
-  bool has_personal_channel_id = personal_channel_id.is_valid();
-  bool has_flags2 = true;
-  bool has_privacy_policy_url = bot_info != nullptr && !bot_info->privacy_policy_url.empty();
-  bool has_gift_count = gift_count != 0;
-  bool has_placeholder_path = bot_info != nullptr && !bot_info->placeholder_path.empty();
-  bool has_background_color = bot_info != nullptr && bot_info->background_color != -1;
-  bool has_background_dark_color = bot_info != nullptr && bot_info->background_dark_color != -1;
-  bool has_header_color = bot_info != nullptr && bot_info->header_color != -1;
-  bool has_header_dark_color = bot_info != nullptr && bot_info->header_dark_color != -1;
-  bool has_referral_program_info = bot_info != nullptr && bot_info->referral_program_info.is_valid();
-  bool has_verifier_settings = bot_info != nullptr && bot_info->verifier_settings != nullptr;
-  bool has_bot_verification = bot_verification != nullptr;
-  bool has_charge_paid_message_stars = charge_paid_message_stars != 0;
-  bool has_send_paid_message_stars = send_paid_message_stars != 0;
-  bool has_gift_settings = !gift_settings.is_default();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_about);
-  STORE_FLAG(is_blocked);
-  STORE_FLAG(can_be_called);
-  STORE_FLAG(has_private_calls);
-  STORE_FLAG(can_pin_messages);
-  STORE_FLAG(need_phone_number_privacy_exception);
-  STORE_FLAG(has_photo);
-  STORE_FLAG(supports_video_calls);
-  STORE_FLAG(has_description);
-  STORE_FLAG(has_commands);
-  STORE_FLAG(has_private_forward_name);
-  STORE_FLAG(has_group_administrator_rights);
-  STORE_FLAG(has_broadcast_administrator_rights);
-  STORE_FLAG(has_menu_button);
-  STORE_FLAG(has_description_photo);
-  STORE_FLAG(has_description_animation);
-  STORE_FLAG(false);  // has_premium_gift_options
-  STORE_FLAG(voice_messages_forbidden);
-  STORE_FLAG(has_personal_photo);
-  STORE_FLAG(has_fallback_photo);
-  STORE_FLAG(has_pinned_stories);
-  STORE_FLAG(is_blocked_for_stories);
-  STORE_FLAG(wallpaper_overridden);
-  STORE_FLAG(read_dates_private);
-  STORE_FLAG(contact_require_premium);
-  STORE_FLAG(has_business_info);
-  STORE_FLAG(has_birthdate);
-  STORE_FLAG(has_personal_channel_id);
-  STORE_FLAG(sponsored_enabled);
-  STORE_FLAG(has_flags2);
-  END_STORE_FLAGS();
-  if (has_flags2) {
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_preview_medias);
-    STORE_FLAG(has_privacy_policy_url);
-    STORE_FLAG(has_gift_count);
-    STORE_FLAG(can_view_revenue);
-    STORE_FLAG(can_manage_emoji_status);
-    STORE_FLAG(has_placeholder_path);
-    STORE_FLAG(has_background_color);
-    STORE_FLAG(has_background_dark_color);
-    STORE_FLAG(has_header_color);
-    STORE_FLAG(has_header_dark_color);
-    STORE_FLAG(has_referral_program_info);
-    STORE_FLAG(has_verifier_settings);
-    STORE_FLAG(has_bot_verification);
-    STORE_FLAG(has_charge_paid_message_stars);
-    STORE_FLAG(has_send_paid_message_stars);
-    STORE_FLAG(has_gift_settings);
-    END_STORE_FLAGS();
-  }
-  if (has_about) {
-    store(about, storer);
-  }
-  store(common_chat_count, storer);
-  store_time(expires_at, storer);
-  if (has_photo) {
-    store(photo, storer);
-  }
-  if (has_description) {
-    store(bot_info->description, storer);
-  }
-  if (has_commands) {
-    store(bot_info->commands, storer);
-  }
-  if (has_private_forward_name) {
-    store(private_forward_name, storer);
-  }
-  if (has_group_administrator_rights) {
-    store(bot_info->group_administrator_rights, storer);
-  }
-  if (has_broadcast_administrator_rights) {
-    store(bot_info->broadcast_administrator_rights, storer);
-  }
-  if (has_menu_button) {
-    store(bot_info->menu_button, storer);
-  }
-  if (has_description_photo) {
-    store(bot_info->description_photo, storer);
-  }
-  if (has_description_animation) {
-    storer.context()->td().get_actor_unsafe()->animations_manager_->store_animation(
-        bot_info->description_animation_file_id, storer);
-  }
-  if (has_personal_photo) {
-    store(personal_photo, storer);
-  }
-  if (has_fallback_photo) {
-    store(fallback_photo, storer);
-  }
-  if (has_business_info) {
-    store(business_info, storer);
-  }
-  if (has_birthdate) {
-    store(birthdate, storer);
-  }
-  if (has_personal_channel_id) {
-    store(personal_channel_id, storer);
-  }
-  if (has_privacy_policy_url) {
-    store(bot_info->privacy_policy_url, storer);
-  }
-  if (has_gift_count) {
-    store(gift_count, storer);
-  }
-  if (has_placeholder_path) {
-    store(bot_info->placeholder_path, storer);
-  }
-  if (has_background_color) {
-    store(bot_info->background_color, storer);
-  }
-  if (has_background_dark_color) {
-    store(bot_info->background_dark_color, storer);
-  }
-  if (has_header_color) {
-    store(bot_info->header_color, storer);
-  }
-  if (has_header_dark_color) {
-    store(bot_info->header_dark_color, storer);
-  }
-  if (has_referral_program_info) {
-    store(bot_info->referral_program_info, storer);
-  }
-  if (has_verifier_settings) {
-    store(bot_info->verifier_settings, storer);
-  }
-  if (has_bot_verification) {
-    store(bot_verification, storer);
-  }
-  if (has_charge_paid_message_stars) {
-    store(charge_paid_message_stars, storer);
-  }
-  if (has_send_paid_message_stars) {
-    store(send_paid_message_stars, storer);
-  }
-  if (has_gift_settings) {
-    store(gift_settings, storer);
-  }
-}
-
-template <class ParserT>
-void UserManager::UserFull::parse(ParserT &parser) {
-  using td::parse;
-  bool has_about;
-  bool has_photo;
-  bool has_description;
-  bool has_commands;
-  bool has_private_forward_name;
-  bool has_group_administrator_rights;
-  bool has_broadcast_administrator_rights;
-  bool has_menu_button;
-  bool has_description_photo;
-  bool has_description_animation;
-  bool legacy_has_premium_gift_options;
-  bool has_personal_photo;
-  bool has_fallback_photo;
-  bool has_business_info;
-  bool has_birthdate;
-  bool has_personal_channel_id;
-  bool has_flags2;
-  bool has_privacy_policy_url = false;
-  bool has_gift_count = false;
-  bool has_placeholder_path = false;
-  bool has_background_color = false;
-  bool has_background_dark_color = false;
-  bool has_header_color = false;
-  bool has_header_dark_color = false;
-  bool has_referral_program_info = false;
-  bool has_verifier_settings = false;
-  bool has_bot_verification = false;
-  bool has_charge_paid_message_stars = false;
-  bool has_send_paid_message_stars = false;
-  bool has_gift_settings = false;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_about);
-  PARSE_FLAG(is_blocked);
-  PARSE_FLAG(can_be_called);
-  PARSE_FLAG(has_private_calls);
-  PARSE_FLAG(can_pin_messages);
-  PARSE_FLAG(need_phone_number_privacy_exception);
-  PARSE_FLAG(has_photo);
-  PARSE_FLAG(supports_video_calls);
-  PARSE_FLAG(has_description);
-  PARSE_FLAG(has_commands);
-  PARSE_FLAG(has_private_forward_name);
-  PARSE_FLAG(has_group_administrator_rights);
-  PARSE_FLAG(has_broadcast_administrator_rights);
-  PARSE_FLAG(has_menu_button);
-  PARSE_FLAG(has_description_photo);
-  PARSE_FLAG(has_description_animation);
-  PARSE_FLAG(legacy_has_premium_gift_options);
-  PARSE_FLAG(voice_messages_forbidden);
-  PARSE_FLAG(has_personal_photo);
-  PARSE_FLAG(has_fallback_photo);
-  PARSE_FLAG(has_pinned_stories);
-  PARSE_FLAG(is_blocked_for_stories);
-  PARSE_FLAG(wallpaper_overridden);
-  PARSE_FLAG(read_dates_private);
-  PARSE_FLAG(contact_require_premium);
-  PARSE_FLAG(has_business_info);
-  PARSE_FLAG(has_birthdate);
-  PARSE_FLAG(has_personal_channel_id);
-  PARSE_FLAG(sponsored_enabled);
-  PARSE_FLAG(has_flags2);
-  END_PARSE_FLAGS();
-  if (has_flags2) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_preview_medias);
-    PARSE_FLAG(has_privacy_policy_url);
-    PARSE_FLAG(has_gift_count);
-    PARSE_FLAG(can_view_revenue);
-    PARSE_FLAG(can_manage_emoji_status);
-    PARSE_FLAG(has_placeholder_path);
-    PARSE_FLAG(has_background_color);
-    PARSE_FLAG(has_background_dark_color);
-    PARSE_FLAG(has_header_color);
-    PARSE_FLAG(has_header_dark_color);
-    PARSE_FLAG(has_referral_program_info);
-    PARSE_FLAG(has_verifier_settings);
-    PARSE_FLAG(has_bot_verification);
-    PARSE_FLAG(has_charge_paid_message_stars);
-    PARSE_FLAG(has_send_paid_message_stars);
-    PARSE_FLAG(has_gift_settings);
-    END_PARSE_FLAGS();
-  }
-  if (has_about) {
-    parse(about, parser);
-  }
-  parse(common_chat_count, parser);
-  parse_time(expires_at, parser);
-  if (has_photo) {
-    parse(photo, parser);
-  }
-  if (has_description) {
-    parse(add_bot_info()->description, parser);
-  }
-  if (has_commands) {
-    parse(add_bot_info()->commands, parser);
-  }
-  if (has_private_forward_name) {
-    parse(private_forward_name, parser);
-  }
-  if (has_group_administrator_rights) {
-    parse(add_bot_info()->group_administrator_rights, parser);
-  }
-  if (has_broadcast_administrator_rights) {
-    parse(add_bot_info()->broadcast_administrator_rights, parser);
-  }
-  if (has_menu_button) {
-    parse(add_bot_info()->menu_button, parser);
-  }
-  if (has_description_photo) {
-    parse(add_bot_info()->description_photo, parser);
-  }
-  if (has_description_animation) {
-    add_bot_info()->description_animation_file_id =
-        parser.context()->td().get_actor_unsafe()->animations_manager_->parse_animation(parser);
-  }
-  if (legacy_has_premium_gift_options) {
-    vector<PremiumGiftOption> premium_gift_options;
-    parse(premium_gift_options, parser);
-  }
-  if (has_personal_photo) {
-    parse(personal_photo, parser);
-  }
-  if (has_fallback_photo) {
-    parse(fallback_photo, parser);
-  }
-  if (has_business_info) {
-    parse(business_info, parser);
-  }
-  if (has_birthdate) {
-    parse(birthdate, parser);
-  }
-  if (has_personal_channel_id) {
-    parse(personal_channel_id, parser);
-  }
-  if (has_privacy_policy_url) {
-    parse(add_bot_info()->privacy_policy_url, parser);
-  }
-  if (has_gift_count) {
-    parse(gift_count, parser);
-  }
-  if (has_placeholder_path) {
-    parse(add_bot_info()->placeholder_path, parser);
-  }
-  if (has_background_color) {
-    parse(add_bot_info()->background_color, parser);
-  }
-  if (has_background_dark_color) {
-    parse(add_bot_info()->background_dark_color, parser);
-  }
-  if (has_header_color) {
-    parse(add_bot_info()->header_color, parser);
-  }
-  if (has_header_dark_color) {
-    parse(add_bot_info()->header_dark_color, parser);
-  }
-  if (has_referral_program_info) {
-    parse(add_bot_info()->referral_program_info, parser);
-  }
-  if (has_verifier_settings) {
-    parse(add_bot_info()->verifier_settings, parser);
-  }
-  if (has_bot_verification) {
-    parse(bot_verification, parser);
-  }
-  if (has_charge_paid_message_stars) {
-    parse(charge_paid_message_stars, parser);
-  }
-  if (has_send_paid_message_stars) {
-    parse(send_paid_message_stars, parser);
-  }
-  if (has_gift_settings) {
-    parse(gift_settings, parser);
-  }
-}
-
-template <class StorerT>
-void UserManager::SecretChat::store(StorerT &storer) const {
-  using td::store;
-  bool has_layer = layer > static_cast<int32>(SecretChatLayer::Default);
-  bool has_initial_folder_id = initial_folder_id != FolderId();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(is_outbound);
-  STORE_FLAG(has_layer);
-  STORE_FLAG(has_initial_folder_id);
-  END_STORE_FLAGS();
-
-  store(access_hash, storer);
-  store(user_id, storer);
-  store(state, storer);
-  store(ttl, storer);
-  store(date, storer);
-  store(key_hash, storer);
-  if (has_layer) {
-    store(layer, storer);
-  }
-  if (has_initial_folder_id) {
-    store(initial_folder_id, storer);
-  }
-}
-
-template <class ParserT>
-void UserManager::SecretChat::parse(ParserT &parser) {
-  using td::parse;
-  bool has_layer;
-  bool has_initial_folder_id;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(is_outbound);
-  PARSE_FLAG(has_layer);
-  PARSE_FLAG(has_initial_folder_id);
-  END_PARSE_FLAGS();
-
-  if (parser.version() >= static_cast<int32>(Version::AddAccessHashToSecretChat)) {
-    parse(access_hash, parser);
-  }
-  parse(user_id, parser);
-  parse(state, parser);
-  parse(ttl, parser);
-  parse(date, parser);
-  if (parser.version() >= static_cast<int32>(Version::AddKeyHashToSecretChat)) {
-    parse(key_hash, parser);
-  }
-  if (has_layer) {
-    parse(layer, parser);
-  } else {
-    layer = static_cast<int32>(SecretChatLayer::Default);
-  }
-  if (has_initial_folder_id) {
-    parse(initial_folder_id, parser);
-  }
-}
-
-class UserManager::UserLogEvent {
- public:
-  UserId user_id;
-  const User *u_in = nullptr;
-  unique_ptr<User> u_out;
-
-  UserLogEvent() = default;
-
-  UserLogEvent(UserId user_id, const User *u) : user_id(user_id), u_in(u) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(user_id, storer);
-    td::store(*u_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(user_id, parser);
-    td::parse(u_out, parser);
-  }
-};
-
-class UserManager::SecretChatLogEvent {
- public:
-  SecretChatId secret_chat_id;
-  const SecretChat *c_in = nullptr;
-  unique_ptr<SecretChat> c_out;
-
-  SecretChatLogEvent() = default;
-
-  SecretChatLogEvent(SecretChatId secret_chat_id, const SecretChat *c) : secret_chat_id(secret_chat_id), c_in(c) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(secret_chat_id, storer);
-    td::store(*c_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(secret_chat_id, parser);
-    td::parse(c_out, parser);
-  }
-};
-
-class UserManager::UploadProfilePhotoCallback final : public FileManager::UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    send_closure_later(G()->user_manager(), &UserManager::on_upload_profile_photo, file_upload_id,
-                       std::move(input_file));
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-    send_closure_later(G()->user_manager(), &UserManager::on_upload_profile_photo_error, file_upload_id,
-                       std::move(error));
-  }
-};
-
-UserManager::UserManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  upload_profile_photo_callback_ = std::make_shared<UploadProfilePhotoCallback>();
-
-  my_id_ = load_my_id();
-
-  if (G()->use_chat_info_database()) {
-    auto next_contacts_sync_date_string = G()->td_db()->get_binlog_pmc()->get("next_contacts_sync_date");
-    if (!next_contacts_sync_date_string.empty()) {
-      next_contacts_sync_date_ = min(to_integer<int32>(next_contacts_sync_date_string), G()->unix_time() + 100000);
-    }
-
-    auto saved_contact_count_string = G()->td_db()->get_binlog_pmc()->get("saved_contact_count");
-    if (!saved_contact_count_string.empty()) {
-      saved_contact_count_ = to_integer<int32>(saved_contact_count_string);
-    }
-  } else if (!td_->auth_manager_->is_bot()) {
-    G()->td_db()->get_binlog_pmc()->erase("next_contacts_sync_date");
-    G()->td_db()->get_binlog_pmc()->erase("saved_contact_count");
-  }
-  if (G()->use_sqlite_pmc()) {
-    G()->td_db()->get_sqlite_pmc()->erase_by_prefix("us_bot_info", Auto());
-  }
-
-  if (!td_->auth_manager_->is_bot()) {
-    was_online_local_ = to_integer<int32>(G()->td_db()->get_binlog_pmc()->get("my_was_online_local"));
-    was_online_remote_ = to_integer<int32>(G()->td_db()->get_binlog_pmc()->get("my_was_online_remote"));
-    auto unix_time = G()->unix_time();
-    if (was_online_local_ >= unix_time && !td_->online_manager_->is_online()) {
-      was_online_local_ = unix_time - 1;
-    }
-
-    auto log_event_string = G()->td_db()->get_binlog_pmc()->get("freeze_state");
-    if (!log_event_string.empty()) {
-      string freeze_since_date;
-      string freeze_until_date;
-      std::tie(freeze_since_date, log_event_string) = split(log_event_string);
-      std::tie(freeze_until_date, freeze_appeal_url_) = split(log_event_string);
-      freeze_since_date_ = to_integer<int32>(freeze_since_date);
-      freeze_until_date_ = to_integer<int32>(freeze_until_date);
-
-      send_closure(G()->td(), &Td::send_update, get_update_freeze_state_object());
-    }
-  }
-
-  user_online_timeout_.set_callback(on_user_online_timeout_callback);
-  user_online_timeout_.set_callback_data(static_cast<void *>(this));
-
-  user_emoji_status_timeout_.set_callback(on_user_emoji_status_timeout_callback);
-  user_emoji_status_timeout_.set_callback_data(static_cast<void *>(this));
-
-  get_user_queries_.set_merge_function([this](vector<int64> query_ids, Promise<Unit> &&promise) {
-    TRY_STATUS_PROMISE(promise, G()->close_status());
-    auto input_users = transform(query_ids, [this](int64 query_id) { return get_input_user_force(UserId(query_id)); });
-    td_->create_handler<GetUsersQuery>(std::move(promise))->send(std::move(input_users));
-  });
-  get_is_premium_required_to_contact_queries_.set_merge_function(
-      [this](vector<int64> query_ids, Promise<Unit> &&promise) {
-        TRY_STATUS_PROMISE(promise, G()->close_status());
-        auto user_ids = UserId::get_user_ids(query_ids);
-        auto input_users = transform(user_ids, [this](UserId user_id) { return get_input_user_force(user_id); });
-        td_->create_handler<GetIsPremiumRequiredToContactQuery>(std::move(promise))
-            ->send(std::move(user_ids), std::move(input_users));
-      });
-}
-
-UserManager::~UserManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), users_, users_full_, user_photos_,
-                                              unknown_users_, pending_user_photos_, user_profile_photo_file_source_ids_,
-                                              my_photo_file_id_, user_full_file_source_ids_, secret_chats_,
-                                              unknown_secret_chats_, secret_chats_with_user_);
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), loaded_from_database_users_,
-                                              unavailable_user_fulls_, loaded_from_database_secret_chats_,
-                                              resolved_phone_numbers_, all_imported_contacts_, restricted_user_ids_);
-}
-
-void UserManager::tear_down() {
-  parent_.reset();
-
-  LOG(DEBUG) << "Have " << users_.calc_size() << " users and " << secret_chats_.calc_size() << " secret chats to free";
-  LOG(DEBUG) << "Have " << users_full_.calc_size() << " full users to free";
-}
-
-void UserManager::on_user_online_timeout_callback(void *user_manager_ptr, int64 user_id_long) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto user_manager = static_cast<UserManager *>(user_manager_ptr);
-  send_closure_later(user_manager->actor_id(user_manager), &UserManager::on_user_online_timeout, UserId(user_id_long));
-}
-
-void UserManager::on_user_online_timeout(UserId user_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto u = get_user(user_id);
-  CHECK(u != nullptr);
-  CHECK(u->is_update_user_sent);
-
-  LOG(INFO) << "Update " << user_id << " online status to offline";
-  send_closure(G()->td(), &Td::send_update,
-               td_api::make_object<td_api::updateUserStatus>(user_id.get(),
-                                                             get_user_status_object(user_id, u, G()->unix_time())));
-
-  td_->dialog_participant_manager_->update_user_online_member_count(user_id);
-}
-
-void UserManager::on_user_emoji_status_timeout_callback(void *user_manager_ptr, int64 user_id_long) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto user_manager = static_cast<UserManager *>(user_manager_ptr);
-  send_closure_later(user_manager->actor_id(user_manager), &UserManager::on_user_emoji_status_timeout,
-                     UserId(user_id_long));
-}
-
-void UserManager::on_user_emoji_status_timeout(UserId user_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto u = get_user(user_id);
-  CHECK(u != nullptr);
-  CHECK(u->is_update_user_sent);
-
-  update_user(u, user_id);
-}
-
-UserId UserManager::get_user_id(const telegram_api::object_ptr<telegram_api::User> &user) {
-  CHECK(user != nullptr);
-  switch (user->get_id()) {
-    case telegram_api::userEmpty::ID:
-      return UserId(static_cast<const telegram_api::userEmpty *>(user.get())->id_);
-    case telegram_api::user::ID:
-      return UserId(static_cast<const telegram_api::user *>(user.get())->id_);
-    default:
-      UNREACHABLE();
-      return UserId();
-  }
-}
-
-vector<UserId> UserManager::get_user_ids(vector<telegram_api::object_ptr<telegram_api::User>> &&users,
-                                         const char *source) {
-  vector<UserId> user_ids;
-  for (auto &user : users) {
-    auto user_id = get_user_id(user);
-    if (!user_id.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << user_id << " from " << source << " in " << to_string(user);
-      continue;
-    }
-    on_get_user(std::move(user), source);
-    if (have_user(user_id)) {
-      user_ids.push_back(user_id);
-    }
-  }
-  return user_ids;
-}
-
-UserId UserManager::load_my_id() {
-  auto id_string = G()->td_db()->get_binlog_pmc()->get("my_id");
-  if (!id_string.empty()) {
-    UserId my_id(to_integer<int64>(id_string));
-    if (my_id.is_valid()) {
-      return my_id;
-    }
-
-    my_id = UserId(to_integer<int64>(Slice(id_string).substr(5)));
-    if (my_id.is_valid()) {
-      G()->td_db()->get_binlog_pmc()->set("my_id", to_string(my_id.get()));
-      return my_id;
-    }
-
-    LOG(ERROR) << "Wrong my ID = \"" << id_string << "\" stored in database";
-  }
-  return UserId();
-}
-
-UserId UserManager::get_my_id() const {
-  LOG_IF(ERROR, !my_id_.is_valid()) << "Wrong or unknown my ID returned";
-  return my_id_;
-}
-
-void UserManager::set_my_id(UserId my_id) {
-  UserId my_old_id = my_id_;
-  if (my_old_id.is_valid() && my_old_id != my_id) {
-    LOG(ERROR) << "Already know that me is " << my_old_id << " but received userSelf with " << my_id;
-    return;
-  }
-  if (!my_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid my ID " << my_id;
-    return;
-  }
-  if (my_old_id != my_id) {
-    my_id_ = my_id;
-    G()->td_db()->get_binlog_pmc()->set("my_id", to_string(my_id.get()));
-    td_->option_manager_->set_option_integer("my_id", my_id_.get());
-    if (!td_->auth_manager_->is_bot()) {
-      G()->td_db()->get_binlog_pmc()->force_sync(Promise<Unit>(), "set_my_id");
-    }
-  }
-}
-
-UserId UserManager::get_service_notifications_user_id() {
-  return UserId(static_cast<int64>(777000));
-}
-
-UserId UserManager::add_service_notifications_user() {
-  auto user_id = get_service_notifications_user_id();
-  if (!have_user_force(user_id, "add_service_notifications_user")) {
-    LOG(FATAL) << "Failed to load service notification user";
-  }
-  return user_id;
-}
-
-UserId UserManager::get_replies_bot_user_id() {
-  return UserId(static_cast<int64>(G()->is_test_dc() ? 708513 : 1271266957));
-}
-
-UserId UserManager::get_verification_codes_bot_user_id() {
-  return UserId(static_cast<int64>(489000));
-}
-
-UserId UserManager::get_anonymous_bot_user_id() {
-  return UserId(static_cast<int64>(G()->is_test_dc() ? 552888 : 1087968824));
-}
-
-UserId UserManager::get_channel_bot_user_id() {
-  return UserId(static_cast<int64>(G()->is_test_dc() ? 936174 : 136817688));
-}
-
-UserId UserManager::get_anti_spam_bot_user_id() {
-  return UserId(static_cast<int64>(G()->is_test_dc() ? 2200583762ll : 5434988373ll));
-}
-
-UserId UserManager::add_anonymous_bot_user() {
-  auto user_id = get_anonymous_bot_user_id();
-  if (!have_user_force(user_id, "add_anonymous_bot_user")) {
-    LOG(FATAL) << "Failed to load anonymous bot user";
-  }
-  return user_id;
-}
-
-UserId UserManager::add_channel_bot_user() {
-  auto user_id = get_channel_bot_user_id();
-  if (!have_user_force(user_id, "add_channel_bot_user")) {
-    LOG(FATAL) << "Failed to load channel bot user";
-  }
-  return user_id;
-}
-
-UserManager::MyOnlineStatusInfo UserManager::get_my_online_status() const {
-  MyOnlineStatusInfo status_info;
-  status_info.is_online_local = td_->online_manager_->is_online();
-  status_info.is_online_remote = was_online_remote_ > G()->unix_time();
-  status_info.was_online_local = was_online_local_;
-  status_info.was_online_remote = was_online_remote_;
-
-  return status_info;
-}
-
-void UserManager::set_my_online_status(bool is_online, bool send_update, bool is_local) {
-  if (td_->auth_manager_->is_bot()) {
-    return;  // just in case
-  }
-
-  auto my_id = get_my_id();
-  User *u = get_user_force(my_id, "set_my_online_status");
-  if (u != nullptr) {
-    int32 new_online;
-    int32 unix_time = G()->unix_time();
-    if (is_online) {
-      new_online = unix_time + 300;
-    } else {
-      new_online = unix_time - 1;
-    }
-
-    auto old_was_online = get_user_was_online(u, my_id, unix_time);
-    if (is_local) {
-      LOG(INFO) << "Update my local online from " << my_was_online_local_ << " to " << new_online;
-      if (!is_online) {
-        new_online = min(new_online, u->was_online);
-      }
-      if (new_online != my_was_online_local_) {
-        my_was_online_local_ = new_online;
-      }
-    } else {
-      if (my_was_online_local_ != 0 || new_online != u->was_online) {
-        LOG(INFO) << "Update my online from " << u->was_online << " to " << new_online;
-        my_was_online_local_ = 0;
-        u->was_online = new_online;
-        u->need_save_to_database = true;
-      }
-    }
-    if (old_was_online != get_user_was_online(u, my_id, unix_time)) {
-      u->is_status_changed = true;
-      u->is_online_status_changed = true;
-    }
-
-    if (was_online_local_ != new_online) {
-      was_online_local_ = new_online;
-      VLOG(notifications) << "Set was_online_local to " << was_online_local_;
-      G()->td_db()->get_binlog_pmc()->set("my_was_online_local", to_string(was_online_local_));
-    }
-
-    if (send_update) {
-      update_user(u, my_id);
-    }
-  }
-}
-
-void UserManager::on_get_user(telegram_api::object_ptr<telegram_api::User> &&user_ptr, const char *source) {
-  LOG(DEBUG) << "Receive from " << source << ' ' << to_string(user_ptr);
-  int32 constructor_id = user_ptr->get_id();
-  if (constructor_id == telegram_api::userEmpty::ID) {
-    auto user = move_tl_object_as<telegram_api::userEmpty>(user_ptr);
-    UserId user_id(user->id_);
-    if (!user_id.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << user_id << " from " << source;
-      return;
-    }
-    LOG(INFO) << "Receive empty " << user_id << " from " << source;
-
-    User *u = get_user_force(user_id, source);
-    if (u == nullptr && Slice(source) != Slice("GetUsersQuery")) {
-      // userEmpty should be received only through getUsers for nonexistent users
-      LOG(ERROR) << "Have no information about " << user_id << ", but received userEmpty from " << source;
-    }
-    return;
-  }
-
-  CHECK(constructor_id == telegram_api::user::ID);
-  auto user = move_tl_object_as<telegram_api::user>(user_ptr);
-  UserId user_id(user->id_);
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  LOG(INFO) << "Receive " << user_id << " from " << source;
-
-  bool is_bot = user->bot_;
-  if (user->self_) {
-    set_my_id(user_id);
-    if (!is_bot) {
-      td_->option_manager_->set_option_string("my_phone_number", user->phone_);
-    }
-  }
-
-  int32 flags = user->flags_;
-  bool have_access_hash = (flags & telegram_api::user::ACCESS_HASH_MASK) != 0;
-  bool is_received = !user->min_;
-  bool is_contact = user->contact_;
-
-  User *u = get_user(user_id);
-  if (u == nullptr) {
-    if (!is_received) {
-      // we must preload received inaccessible users from database in order to not save
-      // the min-user to the database and to not override access_hash and other data
-      u = get_user_force(user_id, "on_get_user 2");
-      if (u == nullptr) {
-        LOG(INFO) << "Receive inaccessible " << user_id;
-        u = add_user(user_id);
-      }
-    } else if (is_contact && !are_contacts_loaded_) {
-      // preload contact users from database to know that is_contact didn't changed
-      // and the list of contacts doesn't need to be saved to the database
-      u = get_user_force(user_id, "on_get_user 3");
-      if (u == nullptr) {
-        LOG(INFO) << "Receive contact " << user_id << " for the first time";
-        u = add_user(user_id);
-      }
-    } else {
-      u = add_user(user_id);
-    }
-    CHECK(u != nullptr);
-    if (unknown_users_.erase(user_id) != 0) {
-      u->is_photo_inited = true;
-    }
-  }
-
-  if (have_access_hash) {  // access_hash must be updated before photo
-    auto access_hash = user->access_hash_;
-    bool is_min_access_hash = !is_received && !((flags & telegram_api::user::PHONE_MASK) != 0 && user->phone_.empty());
-    if (u->access_hash != access_hash && (!is_min_access_hash || u->is_min_access_hash || u->access_hash == -1)) {
-      LOG(DEBUG) << "Access hash has changed for " << user_id << " from " << u->access_hash << "/"
-                 << u->is_min_access_hash << " to " << access_hash << "/" << is_min_access_hash;
-      u->access_hash = access_hash;
-      u->is_min_access_hash = is_min_access_hash;
-      u->need_save_to_database = true;
-    }
-  }
-
-  bool is_verified = user->verified_;
-  bool is_premium = user->premium_;
-  bool is_support = user->support_;
-  bool is_deleted = user->deleted_;
-  bool can_join_groups = !user->bot_nochats_;
-  bool can_read_all_group_messages = user->bot_chat_history_;
-  bool can_be_added_to_attach_menu = user->bot_attach_menu_;
-  bool has_main_app = user->bot_has_main_app_;
-  bool attach_menu_enabled = user->attach_menu_enabled_;
-  bool is_scam = user->scam_;
-  bool can_be_edited_bot = user->bot_can_edit_;
-  bool is_inline_bot = (flags & telegram_api::user::BOT_INLINE_PLACEHOLDER_MASK) != 0;
-  bool is_business_bot = user->bot_business_;
-  string inline_query_placeholder = std::move(user->bot_inline_placeholder_);
-  int32 bot_active_users = user->bot_active_users_;
-  bool need_location_bot = user->bot_inline_geo_;
-  bool need_apply_min_photo = user->apply_min_photo_;
-  bool is_fake = user->fake_;
-  bool stories_available = user->stories_max_id_ > 0;
-  bool stories_unavailable = user->stories_unavailable_;
-  bool stories_hidden = user->stories_hidden_;
-  bool contact_require_premium = user->contact_require_premium_;
-  auto paid_message_star_count = StarManager::get_star_count(user->send_paid_messages_stars_);
-
-  if (!is_bot && (!can_join_groups || can_read_all_group_messages || can_be_added_to_attach_menu || can_be_edited_bot ||
-                  has_main_app || is_inline_bot || is_business_bot)) {
-    LOG(ERROR) << "Receive not bot " << user_id << " with bot properties from " << source;
-    can_join_groups = true;
-    can_read_all_group_messages = false;
-    can_be_added_to_attach_menu = false;
-    can_be_edited_bot = false;
-    has_main_app = false;
-    is_inline_bot = false;
-    is_business_bot = false;
-  }
-  if (need_location_bot && !is_inline_bot) {
-    LOG(ERROR) << "Receive not inline bot " << user_id << " which needs user location from " << source;
-    need_location_bot = false;
-  }
-
-  if (is_deleted) {
-    // just in case
-    is_verified = false;
-    is_premium = false;
-    is_support = false;
-    is_bot = false;
-    can_join_groups = false;
-    can_read_all_group_messages = false;
-    can_be_added_to_attach_menu = false;
-    can_be_edited_bot = false;
-    has_main_app = false;
-    is_inline_bot = false;
-    is_business_bot = false;
-    inline_query_placeholder = string();
-    bot_active_users = 0;
-    need_location_bot = false;
-    need_apply_min_photo = false;
-    paid_message_star_count = 0;
-  }
-
-  int32 bot_info_version = is_bot ? user->bot_info_version_ : -1;
-  if (is_verified != u->is_verified || is_support != u->is_support || is_bot != u->is_bot ||
-      can_join_groups != u->can_join_groups || can_read_all_group_messages != u->can_read_all_group_messages ||
-      is_scam != u->is_scam || is_fake != u->is_fake || is_inline_bot != u->is_inline_bot ||
-      is_business_bot != u->is_business_bot || inline_query_placeholder != u->inline_query_placeholder ||
-      need_location_bot != u->need_location_bot || can_be_added_to_attach_menu != u->can_be_added_to_attach_menu ||
-      bot_active_users != u->bot_active_users || has_main_app != u->has_main_app) {
-    if (is_bot != u->is_bot) {
-      LOG_IF(ERROR, !is_deleted && !u->is_deleted && u->is_received)
-          << "User.is_bot has changed for " << user_id << "/" << u->usernames << " from " << source << " from "
-          << u->is_bot << " to " << is_bot;
-      u->is_full_info_changed = true;
-    }
-    u->is_verified = is_verified;
-    u->is_support = is_support;
-    u->is_bot = is_bot;
-    u->can_join_groups = can_join_groups;
-    u->can_read_all_group_messages = can_read_all_group_messages;
-    u->is_scam = is_scam;
-    u->is_fake = is_fake;
-    u->is_inline_bot = is_inline_bot;
-    u->is_business_bot = is_business_bot;
-    u->inline_query_placeholder = std::move(inline_query_placeholder);
-    u->need_location_bot = need_location_bot;
-    u->can_be_added_to_attach_menu = can_be_added_to_attach_menu;
-    u->bot_active_users = bot_active_users;
-    u->has_main_app = has_main_app;
-
-    LOG(DEBUG) << "Info has changed for " << user_id;
-    u->is_changed = true;
-  }
-  if (contact_require_premium != u->contact_require_premium || paid_message_star_count != u->paid_message_star_count) {
-    u->contact_require_premium = contact_require_premium;
-    u->paid_message_star_count = paid_message_star_count;
-    u->is_changed = true;
-    user_full_contact_price_.erase(user_id);
-  }
-  if (is_received && attach_menu_enabled != u->attach_menu_enabled) {
-    u->attach_menu_enabled = attach_menu_enabled;
-    u->is_changed = true;
-  }
-  if (is_premium != u->is_premium) {
-    u->is_premium = is_premium;
-    u->is_is_premium_changed = true;
-    u->is_changed = true;
-    u->is_full_info_changed = true;
-  }
-  if (is_received && can_be_edited_bot != u->can_be_edited_bot) {
-    u->can_be_edited_bot = can_be_edited_bot;
-    u->is_changed = true;
-    u->is_full_info_changed = true;
-  }
-
-  if (u->bot_info_version != bot_info_version) {
-    u->bot_info_version = bot_info_version;
-    LOG(DEBUG) << "Bot info version has changed for " << user_id;
-    u->need_save_to_database = true;
-  }
-  if (is_received && u->need_apply_min_photo != need_apply_min_photo) {
-    LOG(DEBUG) << "Need apply min photo has changed for " << user_id;
-    u->need_apply_min_photo = need_apply_min_photo;
-    u->need_save_to_database = true;
-  }
-
-  if (is_received && !u->is_received) {
-    u->is_received = true;
-
-    LOG(DEBUG) << "Receive " << user_id;
-    u->is_changed = true;
-  }
-
-  if (is_deleted != u->is_deleted) {
-    u->is_deleted = is_deleted;
-
-    LOG(DEBUG) << "User.is_deleted has changed for " << user_id << " to " << u->is_deleted;
-    u->is_is_deleted_changed = true;
-    u->is_changed = true;
-  }
-
-  if (u->language_code != user->lang_code_ && !user->lang_code_.empty()) {
-    LOG_IF(ERROR, !td_->auth_manager_->is_bot()) << "Receive language code for " << user_id << " from " << source;
-
-    u->language_code = user->lang_code_;
-    u->is_changed = true;
-  }
-
-  bool is_me_regular_user = !td_->auth_manager_->is_bot();
-  if (is_received || u->need_apply_min_photo || !u->is_received) {
-    on_update_user_photo(u, user_id, std::move(user->photo_), source);
-  }
-  if (is_me_regular_user) {
-    if (is_received || !u->is_received) {
-      on_update_user_phone_number(u, user_id, std::move(user->phone_));
-    }
-    if (is_received || !u->is_received || u->was_online == 0) {
-      on_update_user_online(u, user_id, std::move(user->status_));
-    }
-    if (is_received) {
-      on_update_user_is_contact(u, user_id, is_contact, user->mutual_contact_, user->close_friend_);
-    }
-  }
-
-  if (is_received || !u->is_received) {
-    on_update_user_name(u, user_id, std::move(user->first_name_), std::move(user->last_name_));
-    on_update_user_usernames(u, user_id, Usernames{std::move(user->username_), std::move(user->usernames_)});
-  }
-  on_update_user_emoji_status(u, user_id, EmojiStatus::get_emoji_status(std::move(user->emoji_status_)));
-  PeerColor peer_color(user->color_);
-  on_update_user_accent_color_id(u, user_id, peer_color.accent_color_id_);
-  on_update_user_background_custom_emoji_id(u, user_id, peer_color.background_custom_emoji_id_);
-  PeerColor profile_peer_color(user->profile_color_);
-  on_update_user_profile_accent_color_id(u, user_id, profile_peer_color.accent_color_id_);
-  on_update_user_profile_background_custom_emoji_id(u, user_id, profile_peer_color.background_custom_emoji_id_);
-  if (is_me_regular_user) {
-    if (is_received) {
-      on_update_user_stories_hidden(u, user_id, stories_hidden);
-    }
-    if (stories_available || stories_unavailable) {
-      // update at the end, because it calls need_poll_user_active_stories
-      on_update_user_story_ids_impl(u, user_id, StoryId(user->stories_max_id_), StoryId());
-    }
-    auto restriction_reasons = get_restriction_reasons(std::move(user->restriction_reason_));
-    if (restriction_reasons != u->restriction_reasons) {
-      u->restriction_reasons = std::move(restriction_reasons);
-      u->is_changed = true;
-    }
-    on_update_user_bot_verification_icon(u, user_id, CustomEmojiId(user->bot_verification_icon_));
-  }
-
-  if (u->cache_version != User::CACHE_VERSION && u->is_received) {
-    u->cache_version = User::CACHE_VERSION;
-    u->need_save_to_database = true;
-  }
-  u->is_received_from_server = true;
-  update_user(u, user_id);
-}
-
-void UserManager::on_get_users(vector<telegram_api::object_ptr<telegram_api::User>> &&users, const char *source) {
-  for (auto &user : users) {
-    on_get_user(std::move(user), source);
-  }
-}
-
-void UserManager::on_binlog_user_event(BinlogEvent &&event) {
-  if (!G()->use_chat_info_database()) {
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  UserLogEvent log_event;
-  if (log_event_parse(log_event, event.get_data()).is_error()) {
-    LOG(ERROR) << "Failed to load a user from binlog";
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  auto user_id = log_event.user_id;
-  if (have_min_user(user_id) || !user_id.is_valid()) {
-    LOG(ERROR) << "Skip adding already added " << user_id;
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  LOG(INFO) << "Add " << user_id << " from binlog";
-  users_.set(user_id, std::move(log_event.u_out));
-
-  User *u = get_user(user_id);
-  CHECK(u != nullptr);
-  u->log_event_id = event.id_;
-
-  update_user(u, user_id, true, false);
-}
-
-void UserManager::on_binlog_secret_chat_event(BinlogEvent &&event) {
-  if (!G()->use_chat_info_database()) {
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  SecretChatLogEvent log_event;
-  if (log_event_parse(log_event, event.get_data()).is_error()) {
-    LOG(ERROR) << "Failed to load a secret chat from binlog";
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  auto secret_chat_id = log_event.secret_chat_id;
-  if (have_secret_chat(secret_chat_id) || !secret_chat_id.is_valid()) {
-    LOG(ERROR) << "Skip adding already added " << secret_chat_id;
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  LOG(INFO) << "Add " << secret_chat_id << " from binlog";
-  secret_chats_.set(secret_chat_id, std::move(log_event.c_out));
-
-  SecretChat *c = get_secret_chat(secret_chat_id);
-  CHECK(c != nullptr);
-  c->log_event_id = event.id_;
-
-  update_secret_chat(c, secret_chat_id, true, false);
-}
-
-void UserManager::on_update_user_name(UserId user_id, string &&first_name, string &&last_name) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  User *u = get_user_force(user_id, "on_update_user_name");
-  if (u != nullptr) {
-    on_update_user_name(u, user_id, std::move(first_name), std::move(last_name));
-    update_user(u, user_id);
-  } else {
-    LOG(INFO) << "Ignore update about name of unknown " << user_id;
-  }
-}
-
-void UserManager::on_update_user_name(User *u, UserId user_id, string &&first_name, string &&last_name) {
-  if (first_name.empty() && last_name.empty()) {
-    first_name = u->phone_number;
-  }
-  if (u->first_name != first_name || u->last_name != last_name) {
-    u->first_name = std::move(first_name);
-    u->last_name = std::move(last_name);
-    u->is_name_changed = true;
-    LOG(DEBUG) << "Name has changed for " << user_id;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_usernames(UserId user_id, Usernames &&usernames) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  User *u = get_user_force(user_id, "on_update_user_usernames");
-  if (u != nullptr) {
-    on_update_user_usernames(u, user_id, std::move(usernames));
-    update_user(u, user_id);
-  } else {
-    LOG(INFO) << "Ignore update about usernames of unknown " << user_id;
-  }
-}
-
-void UserManager::on_update_user_usernames(User *u, UserId user_id, Usernames &&usernames) {
-  if (u->usernames != usernames) {
-    td_->dialog_manager_->on_dialog_usernames_updated(DialogId(user_id), u->usernames, usernames);
-    td_->messages_manager_->on_dialog_usernames_updated(DialogId(user_id), u->usernames, usernames);
-    if (u->can_be_edited_bot && u->usernames.get_editable_username() != usernames.get_editable_username()) {
-      u->is_full_info_changed = true;
-    }
-    u->usernames = std::move(usernames);
-    u->is_username_changed = true;
-    LOG(DEBUG) << "Usernames have changed for " << user_id;
-    u->is_changed = true;
-  } else if (u->is_bot || !td_->auth_manager_->is_bot()) {
-    td_->dialog_manager_->on_dialog_usernames_received(DialogId(user_id), usernames, false);
-  }
-}
-
-void UserManager::on_update_user_phone_number(UserId user_id, string &&phone_number) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  User *u = get_user_force(user_id, "on_update_user_phone_number");
-  if (u != nullptr) {
-    on_update_user_phone_number(u, user_id, std::move(phone_number));
-    update_user(u, user_id);
-  } else {
-    LOG(INFO) << "Ignore update user phone number about unknown " << user_id;
-  }
-}
-
-void UserManager::on_update_user_phone_number(User *u, UserId user_id, string &&phone_number) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  clean_phone_number(phone_number);
-  if (u->phone_number != phone_number) {
-    if (!u->phone_number.empty()) {
-      auto it = resolved_phone_numbers_.find(u->phone_number);
-      if (it != resolved_phone_numbers_.end() && it->second == user_id) {
-        resolved_phone_numbers_.erase(it);
-      }
-    }
-
-    u->phone_number = std::move(phone_number);
-    u->is_phone_number_changed = true;
-    LOG(DEBUG) << "Phone number has changed for " << user_id;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_photo(User *u, UserId user_id,
-                                       telegram_api::object_ptr<telegram_api::UserProfilePhoto> &&photo,
-                                       const char *source) {
-  if (td_->auth_manager_->is_bot() && !G()->use_chat_info_database()) {
-    if (!u->is_photo_inited) {
-      auto new_photo_id = get_profile_photo_id(photo);
-      auto &old_photo = pending_user_photos_[user_id];
-      if (new_photo_id == get_profile_photo_id(old_photo)) {
-        return;
-      }
-      if (photo != nullptr && photo->get_id() == telegram_api::userProfilePhoto::ID) {
-        auto *profile_photo = static_cast<telegram_api::userProfilePhoto *>(photo.get());
-        profile_photo->stripped_thumb_.clear();
-      }
-
-      old_photo = std::move(photo);
-
-      drop_user_photos(user_id, new_photo_id == 0, "on_update_user_photo");
-      auto user_full = get_user_full(user_id);  // must not load UserFull
-      if (user_full != nullptr && new_photo_id != get_user_full_profile_photo_id(user_full)) {
-        // we didn't sent updateUser yet, so we must not sent updateUserFull with new_photo_id yet
-        drop_user_full_photos(user_full, user_id, 0, "on_update_user_photo");
-      }
-      return;
-    }
-    if (u->is_received) {
-      auto new_photo_id = get_profile_photo_id(photo);
-      if (new_photo_id == u->photo.id) {
-        return;
-      }
-    }
-  }
-
-  do_update_user_photo(u, user_id, std::move(photo), source);
-}
-
-void UserManager::do_update_user_photo(User *u, UserId user_id,
-                                       telegram_api::object_ptr<telegram_api::UserProfilePhoto> &&photo,
-                                       const char *source) {
-  ProfilePhoto new_photo = get_profile_photo(td_->file_manager_.get(), user_id, u->access_hash, std::move(photo));
-  if (td_->auth_manager_->is_bot()) {
-    new_photo.minithumbnail.clear();
-  }
-  do_update_user_photo(u, user_id, std::move(new_photo), true, source);
-}
-
-void UserManager::do_update_user_photo(User *u, UserId user_id, ProfilePhoto &&new_photo, bool invalidate_photo_cache,
-                                       const char *source) {
-  u->is_photo_inited = true;
-  if (need_update_profile_photo(u->photo, new_photo)) {
-    LOG_IF(ERROR, u->access_hash == -1 && new_photo.small_file_id.is_valid())
-        << "Update profile photo of " << user_id << " without access hash from " << source;
-    LOG(DEBUG) << "Update photo of " << user_id << " from " << u->photo << " to " << new_photo
-               << ", invalidate_photo_cache = " << invalidate_photo_cache << " from " << source;
-    u->photo = std::move(new_photo);
-    u->is_photo_changed = true;
-    u->is_changed = true;
-
-    if (invalidate_photo_cache) {
-      drop_user_photos(user_id, u->photo.id == 0, source);
-    }
-    auto user_full = get_user_full(user_id);  // must not load UserFull
-    if (user_full != nullptr && u->photo.id != get_user_full_profile_photo_id(user_full)) {
-      // we didn't sent updateUser yet, so we must not sent updateUserFull with u->photo.id yet
-      drop_user_full_photos(user_full, user_id, 0, "do_update_user_photo");
-    }
-  } else if (need_update_dialog_photo_minithumbnail(u->photo.minithumbnail, new_photo.minithumbnail)) {
-    LOG(DEBUG) << "Photo minithumbnail has changed for " << user_id << " from " << source;
-    u->photo.minithumbnail = std::move(new_photo.minithumbnail);
-    u->is_photo_changed = true;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::register_suggested_profile_photo(const Photo &photo) {
-  auto photo_file_ids = photo_get_file_ids(photo);
-  if (photo.is_empty() || photo_file_ids.empty()) {
-    return;
-  }
-  auto first_file_id = photo_file_ids[0];
-  auto file_type = td_->file_manager_->get_file_view(first_file_id).get_type();
-  if (file_type == FileType::ProfilePhoto) {
-    return;
-  }
-  CHECK(file_type == FileType::Photo);
-  auto photo_id = photo.id.get();
-  if (photo_id != 0) {
-    my_photo_file_id_[photo_id] = first_file_id;
-  }
-}
-
-void UserManager::register_user_photo(User *u, UserId user_id, const Photo &photo) {
-  auto photo_file_ids = photo_get_file_ids(photo);
-  if (photo.is_empty() || photo_file_ids.empty()) {
-    return;
-  }
-  auto first_file_id = photo_file_ids[0];
-  auto file_type = td_->file_manager_->get_file_view(first_file_id).get_type();
-  if (file_type == FileType::ProfilePhoto) {
-    return;
-  }
-  CHECK(file_type == FileType::Photo);
-  CHECK(u != nullptr);
-  auto photo_id = photo.id.get();
-  if (photo_id != 0 && u->photo_ids.emplace(photo_id).second) {
-    VLOG(file_references) << "Register photo " << photo_id << " of " << user_id;
-    if (user_id == get_my_id()) {
-      my_photo_file_id_[photo_id] = first_file_id;
-    }
-    auto file_source_id = user_profile_photo_file_source_ids_.get(std::make_pair(user_id, photo_id));
-    if (file_source_id.is_valid()) {
-      VLOG(file_references) << "Move " << file_source_id << " inside of " << user_id;
-      user_profile_photo_file_source_ids_.erase(std::make_pair(user_id, photo_id));
-    } else {
-      VLOG(file_references) << "Need to create new file source for photo " << photo_id << " of " << user_id;
-      file_source_id = td_->file_reference_manager_->create_user_photo_file_source(user_id, photo_id);
-    }
-    for (auto &file_id : photo_file_ids) {
-      td_->file_manager_->add_file_source(file_id, file_source_id, "register_user_photo");
-    }
-  }
-}
-
-void UserManager::on_update_user_accent_color_id(User *u, UserId user_id, AccentColorId accent_color_id) {
-  if (accent_color_id == AccentColorId(user_id) || !accent_color_id.is_valid()) {
-    accent_color_id = AccentColorId();
-  }
-  if (u->accent_color_id != accent_color_id) {
-    u->accent_color_id = accent_color_id;
-    u->is_accent_color_changed = true;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_background_custom_emoji_id(User *u, UserId user_id,
-                                                            CustomEmojiId background_custom_emoji_id) {
-  if (u->background_custom_emoji_id != background_custom_emoji_id) {
-    u->background_custom_emoji_id = background_custom_emoji_id;
-    u->is_accent_color_changed = true;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_profile_accent_color_id(User *u, UserId user_id, AccentColorId accent_color_id) {
-  if (!accent_color_id.is_valid()) {
-    accent_color_id = AccentColorId();
-  }
-  if (u->profile_accent_color_id != accent_color_id) {
-    u->profile_accent_color_id = accent_color_id;
-    u->is_accent_color_changed = true;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_profile_background_custom_emoji_id(User *u, UserId user_id,
-                                                                    CustomEmojiId background_custom_emoji_id) {
-  if (u->profile_background_custom_emoji_id != background_custom_emoji_id) {
-    u->profile_background_custom_emoji_id = background_custom_emoji_id;
-    u->is_accent_color_changed = true;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_emoji_status(UserId user_id,
-                                              telegram_api::object_ptr<telegram_api::EmojiStatus> &&emoji_status) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  User *u = get_user_force(user_id, "on_update_user_emoji_status");
-  if (u != nullptr) {
-    on_update_user_emoji_status(u, user_id, EmojiStatus::get_emoji_status(std::move(emoji_status)));
-    update_user(u, user_id);
-  } else {
-    LOG(INFO) << "Ignore update user emoji status about unknown " << user_id;
-  }
-}
-
-void UserManager::on_update_user_emoji_status(User *u, UserId user_id, unique_ptr<EmojiStatus> emoji_status) {
-  if (u->emoji_status != emoji_status) {
-    LOG(DEBUG) << "Change emoji status of " << user_id << " from " << u->emoji_status << " to " << emoji_status;
-    u->emoji_status = std::move(emoji_status);
-    u->is_emoji_status_changed = true;
-    // effective emoji status might not be changed; checked in update_user
-    // u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_story_ids(UserId user_id, StoryId max_active_story_id, StoryId max_read_story_id) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  User *u = get_user_force(user_id, "on_update_user_story_ids");
-  if (u != nullptr) {
-    on_update_user_story_ids_impl(u, user_id, max_active_story_id, max_read_story_id);
-    update_user(u, user_id);
-  } else {
-    LOG(INFO) << "Ignore update user story identifiers about unknown " << user_id;
-  }
-}
-
-void UserManager::on_update_user_story_ids_impl(User *u, UserId user_id, StoryId max_active_story_id,
-                                                StoryId max_read_story_id) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-  if (max_active_story_id != StoryId() && !max_active_story_id.is_server()) {
-    LOG(ERROR) << "Receive max active " << max_active_story_id << " for " << user_id;
-    return;
-  }
-  if (max_read_story_id != StoryId() && !max_read_story_id.is_server()) {
-    LOG(ERROR) << "Receive max read " << max_read_story_id << " for " << user_id;
-    return;
-  }
-
-  auto has_unread_stories = get_user_has_unread_stories(u);
-  if (u->max_active_story_id != max_active_story_id) {
-    LOG(DEBUG) << "Change last active story of " << user_id << " from " << u->max_active_story_id << " to "
-               << max_active_story_id;
-    u->max_active_story_id = max_active_story_id;
-    u->need_save_to_database = true;
-  }
-  if (need_poll_user_active_stories(u, user_id)) {
-    auto max_active_story_id_next_reload_time = Time::now() + MAX_ACTIVE_STORY_ID_RELOAD_TIME;
-    if (max_active_story_id_next_reload_time >
-        u->max_active_story_id_next_reload_time + MAX_ACTIVE_STORY_ID_RELOAD_TIME / 5) {
-      LOG(DEBUG) << "Change max_active_story_id_next_reload_time of " << user_id;
-      u->max_active_story_id_next_reload_time = max_active_story_id_next_reload_time;
-      u->need_save_to_database = true;
-    }
-  }
-  if (!max_active_story_id.is_valid()) {
-    CHECK(max_read_story_id == StoryId());
-    if (u->max_read_story_id != StoryId()) {
-      LOG(DEBUG) << "Drop last read " << u->max_read_story_id << " of " << user_id;
-      u->max_read_story_id = StoryId();
-      u->need_save_to_database = true;
-    }
-  } else if (max_read_story_id.get() > u->max_read_story_id.get()) {
-    LOG(DEBUG) << "Change last read story of " << user_id << " from " << u->max_read_story_id << " to "
-               << max_read_story_id;
-    u->max_read_story_id = max_read_story_id;
-    u->need_save_to_database = true;
-  }
-  if (has_unread_stories != get_user_has_unread_stories(u)) {
-    LOG(DEBUG) << "Change has_unread_stories of " << user_id << " to " << !has_unread_stories;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_max_read_story_id(UserId user_id, StoryId max_read_story_id) {
-  CHECK(user_id.is_valid());
-
-  User *u = get_user(user_id);
-  if (u != nullptr) {
-    on_update_user_max_read_story_id(u, user_id, max_read_story_id);
-    update_user(u, user_id);
-  }
-}
-
-void UserManager::on_update_user_max_read_story_id(User *u, UserId user_id, StoryId max_read_story_id) {
-  if (td_->auth_manager_->is_bot() || !u->is_received) {
-    return;
-  }
-
-  auto has_unread_stories = get_user_has_unread_stories(u);
-  if (max_read_story_id.get() > u->max_read_story_id.get()) {
-    LOG(DEBUG) << "Change last read story of " << user_id << " from " << u->max_read_story_id << " to "
-               << max_read_story_id;
-    u->max_read_story_id = max_read_story_id;
-    u->need_save_to_database = true;
-  }
-  if (has_unread_stories != get_user_has_unread_stories(u)) {
-    LOG(DEBUG) << "Change has_unread_stories of " << user_id << " to " << !has_unread_stories;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_stories_hidden(UserId user_id, bool stories_hidden) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  User *u = get_user_force(user_id, "on_update_user_stories_hidden");
-  if (u != nullptr) {
-    on_update_user_stories_hidden(u, user_id, stories_hidden);
-    update_user(u, user_id);
-  } else {
-    LOG(INFO) << "Ignore update user stories are archived about unknown " << user_id;
-  }
-}
-
-void UserManager::on_update_user_stories_hidden(User *u, UserId user_id, bool stories_hidden) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (u->stories_hidden != stories_hidden) {
-    LOG(DEBUG) << "Change stories are archived of " << user_id << " to " << stories_hidden;
-    u->stories_hidden = stories_hidden;
-    u->is_stories_hidden_changed = true;
-    u->need_save_to_database = true;
-  }
-}
-
-void UserManager::on_update_user_bot_verification_icon(User *u, UserId user_id, CustomEmojiId bot_verification_icon) {
-  if (u->bot_verification_icon != bot_verification_icon) {
-    u->bot_verification_icon = bot_verification_icon;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_is_contact(User *u, UserId user_id, bool is_contact, bool is_mutual_contact,
-                                            bool is_close_friend) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  UserId my_id = get_my_id();
-  if (user_id == my_id) {
-    is_mutual_contact = is_contact;
-    is_close_friend = false;
-  }
-  if (!is_contact && (is_mutual_contact || is_close_friend)) {
-    LOG(ERROR) << "Receive is_mutual_contact = " << is_mutual_contact << ", and is_close_friend = " << is_close_friend
-               << " for non-contact " << user_id;
-    is_mutual_contact = false;
-    is_close_friend = false;
-  }
-
-  if (u->is_contact != is_contact || u->is_mutual_contact != is_mutual_contact ||
-      u->is_close_friend != is_close_friend) {
-    LOG(DEBUG) << "Update " << user_id << " is_contact from (" << u->is_contact << ", " << u->is_mutual_contact << ", "
-               << u->is_close_friend << ") to (" << is_contact << ", " << is_mutual_contact << ", " << is_close_friend
-               << ")";
-    if (u->is_contact != is_contact) {
-      u->is_contact = is_contact;
-      u->is_is_contact_changed = true;
-    }
-    if (u->is_mutual_contact != is_mutual_contact) {
-      u->is_mutual_contact = is_mutual_contact;
-      u->is_is_mutual_contact_changed = true;
-
-      reload_contact_birthdates(true);
-    }
-    u->is_close_friend = is_close_friend;
-    u->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_online(UserId user_id, telegram_api::object_ptr<telegram_api::UserStatus> &&status) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  User *u = get_user_force(user_id, "on_update_user_online");
-  if (u != nullptr) {
-    if (u->is_bot) {
-      LOG(ERROR) << "Receive updateUserStatus about bot " << user_id;
-      return;
-    }
-    on_update_user_online(u, user_id, std::move(status));
-    update_user(u, user_id);
-
-    if (user_id == get_my_id() &&
-        was_online_remote_ != u->was_online) {  // only update was_online_remote_ from updateUserStatus
-      was_online_remote_ = u->was_online;
-      VLOG(notifications) << "Set was_online_remote to " << was_online_remote_;
-      G()->td_db()->get_binlog_pmc()->set("my_was_online_remote", to_string(was_online_remote_));
-    }
-  } else {
-    LOG(INFO) << "Ignore update user online about unknown " << user_id;
-  }
-}
-
-void UserManager::on_update_user_online(User *u, UserId user_id,
-                                        telegram_api::object_ptr<telegram_api::UserStatus> &&status) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  int32 id = status == nullptr ? telegram_api::userStatusEmpty::ID : status->get_id();
-  int32 new_online;
-  bool is_offline = false;
-  if (id == telegram_api::userStatusOnline::ID) {
-    int32 now = G()->unix_time();
-
-    auto st = move_tl_object_as<telegram_api::userStatusOnline>(status);
-    new_online = st->expires_;
-    LOG_IF(ERROR, new_online < now - 86400)
-        << "Receive userStatusOnline expired more than one day in past " << new_online;
-  } else if (id == telegram_api::userStatusOffline::ID) {
-    int32 now = G()->unix_time();
-
-    auto st = move_tl_object_as<telegram_api::userStatusOffline>(status);
-    new_online = st->was_online_;
-    if (new_online >= now) {
-      if (new_online > now + 10) {
-        // this is possible when local time isn't adjusted yet after hibernation, but updates were received
-        LOG(INFO) << "Receive userStatusOffline from the future time " << new_online << ", now is " << now;
-      }
-      new_online = now - 1;
-    }
-    is_offline = true;
-  } else if (id == telegram_api::userStatusRecently::ID) {
-    auto st = telegram_api::move_object_as<telegram_api::userStatusRecently>(status);
-    new_online = st->by_me_ ? -4 : -1;
-  } else if (id == telegram_api::userStatusLastWeek::ID) {
-    auto st = telegram_api::move_object_as<telegram_api::userStatusLastWeek>(status);
-    new_online = st->by_me_ ? -5 : -2;
-  } else if (id == telegram_api::userStatusLastMonth::ID) {
-    auto st = telegram_api::move_object_as<telegram_api::userStatusLastMonth>(status);
-    new_online = st->by_me_ ? -6 : -3;
-  } else {
-    CHECK(id == telegram_api::userStatusEmpty::ID);
-    new_online = 0;
-  }
-
-  if (new_online != u->was_online && !(new_online < 0 && user_id == get_my_id())) {
-    LOG(DEBUG) << "Update " << user_id << " online from " << u->was_online << " to " << new_online;
-    auto unix_time = G()->unix_time();
-    bool old_is_online = u->was_online > unix_time;
-    bool new_is_online = new_online > unix_time;
-    u->was_online = new_online;
-    u->is_status_changed = true;
-    if (u->was_online > 0) {
-      u->local_was_online = 0;
-    }
-
-    if (user_id == get_my_id()) {
-      if (my_was_online_local_ != 0 || old_is_online != new_is_online) {
-        my_was_online_local_ = 0;
-        u->is_online_status_changed = true;
-      }
-      if (is_offline) {
-        td_->online_manager_->on_online_updated(false, false);
-      }
-    } else if (old_is_online != new_is_online) {
-      u->is_online_status_changed = true;
-    }
-  }
-}
-
-void UserManager::on_update_user_local_was_online(UserId user_id, int32 local_was_online) {
-  CHECK(user_id.is_valid());
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  User *u = get_user_force(user_id, "on_update_user_local_was_online");
-  if (u == nullptr) {
-    return;
-  }
-
-  on_update_user_local_was_online(u, user_id, local_was_online);
-  update_user(u, user_id);
-}
-
-void UserManager::on_update_user_local_was_online(User *u, UserId user_id, int32 local_was_online) {
-  CHECK(u != nullptr);
-  if (u->is_deleted || u->is_bot || u->is_support || user_id == get_my_id()) {
-    return;
-  }
-  int32 unix_time = G()->unix_time();
-  if (u->was_online > unix_time) {
-    // if user is currently online, ignore local online
-    return;
-  }
-
-  // bring users online for 30 seconds
-  local_was_online += 30;
-  if (local_was_online < unix_time + 2 || local_was_online <= u->local_was_online ||
-      local_was_online <= u->was_online) {
-    return;
-  }
-
-  LOG(DEBUG) << "Update " << user_id << " local online from " << u->local_was_online << " to " << local_was_online;
-  bool old_is_online = u->local_was_online > unix_time;
-  u->local_was_online = local_was_online;
-  u->is_status_changed = true;
-
-  if (!old_is_online) {
-    u->is_online_status_changed = true;
-  }
-}
-
-void UserManager::on_update_user_is_blocked(UserId user_id, bool is_blocked, bool is_blocked_for_stories) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_is_blocked");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_is_blocked(user_full, user_id, is_blocked, is_blocked_for_stories);
-  update_user_full(user_full, user_id, "on_update_user_is_blocked");
-}
-
-void UserManager::on_update_user_full_is_blocked(UserFull *user_full, UserId user_id, bool is_blocked,
-                                                 bool is_blocked_for_stories) {
-  CHECK(user_full != nullptr);
-  if (user_full->is_blocked != is_blocked || user_full->is_blocked_for_stories != is_blocked_for_stories) {
-    LOG(INFO) << "Receive update user full is blocked with " << user_id << " and is_blocked = " << is_blocked << '/'
-              << is_blocked_for_stories;
-    user_full->is_blocked = is_blocked;
-    user_full->is_blocked_for_stories = is_blocked_for_stories;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_has_pinned_stories(UserId user_id, bool has_pinned_stories) {
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_has_pinned_stories");
-  if (user_full == nullptr || user_full->has_pinned_stories == has_pinned_stories) {
-    return;
-  }
-  user_full->has_pinned_stories = has_pinned_stories;
-  user_full->is_changed = true;
-  update_user_full(user_full, user_id, "on_update_user_has_pinned_stories");
-}
-
-void UserManager::on_update_user_common_chat_count(UserId user_id, int32 common_chat_count) {
-  LOG(INFO) << "Receive " << common_chat_count << " common chat count with " << user_id;
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_common_chat_count");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_common_chat_count(user_full, user_id, common_chat_count);
-  update_user_full(user_full, user_id, "on_update_user_common_chat_count");
-}
-
-void UserManager::on_update_user_full_common_chat_count(UserFull *user_full, UserId user_id, int32 common_chat_count) {
-  CHECK(user_full != nullptr);
-  if (common_chat_count < 0) {
-    LOG(ERROR) << "Receive " << common_chat_count << " as common group count with " << user_id;
-    common_chat_count = 0;
-  }
-  if (user_full->common_chat_count != common_chat_count) {
-    user_full->common_chat_count = common_chat_count;
-    user_full->is_common_chat_count_changed = true;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_gift_count(UserId user_id, int32 gift_count) {
-  LOG(INFO) << "Receive " << gift_count << " gifts for " << user_id;
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_gift_count");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_gift_count(user_full, user_id, gift_count);
-  update_user_full(user_full, user_id, "on_update_user_gift_count");
-}
-
-void UserManager::on_update_my_gift_count(int32 added_gift_count) {
-  auto user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(user_id, "on_update_my_gift_count");
-  if (user_full == nullptr || user_full->gift_count + added_gift_count < 0) {
-    return;
-  }
-  on_update_user_full_gift_count(user_full, user_id, user_full->gift_count + added_gift_count);
-  update_user_full(user_full, user_id, "on_update_my_gift_count");
-}
-
-void UserManager::on_update_user_full_gift_count(UserFull *user_full, UserId user_id, int32 gift_count) {
-  CHECK(user_full != nullptr);
-  if (gift_count < 0) {
-    LOG(ERROR) << "Receive " << gift_count << " as gift count with " << user_id;
-    gift_count = 0;
-  }
-  if (user_full->gift_count != gift_count) {
-    user_full->gift_count = gift_count;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_my_user_gift_settings(StarGiftSettings &&gift_settings, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  auto user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(user_id, "on_update_my_user_gift_settings");
-  if (user_full != nullptr && user_full->gift_settings != gift_settings) {
-    user_full->gift_settings = std::move(gift_settings);
-    user_full->is_changed = true;
-    update_user_full(user_full, user_id, "on_update_my_user_gift_settings");
-  }
-  promise.set_value(Unit());
-}
-
-void UserManager::on_update_my_user_location(DialogLocation &&location) {
-  auto user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(user_id, "on_update_my_user_location");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_location(user_full, user_id, std::move(location));
-  update_user_full(user_full, user_id, "on_update_my_user_location");
-}
-
-void UserManager::on_update_user_full_location(UserFull *user_full, UserId user_id, DialogLocation &&location) {
-  CHECK(user_full != nullptr);
-  if (BusinessInfo::set_location(user_full->business_info, std::move(location))) {
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_my_user_work_hours(BusinessWorkHours &&work_hours) {
-  auto user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(user_id, "on_update_my_user_work_hours");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_work_hours(user_full, user_id, std::move(work_hours));
-  update_user_full(user_full, user_id, "on_update_my_user_work_hours");
-}
-
-void UserManager::on_update_user_full_work_hours(UserFull *user_full, UserId user_id, BusinessWorkHours &&work_hours) {
-  CHECK(user_full != nullptr);
-  if (BusinessInfo::set_work_hours(user_full->business_info, std::move(work_hours))) {
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_my_user_away_message(BusinessAwayMessage &&away_message) {
-  auto user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(user_id, "on_update_my_user_away_message");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_away_message(user_full, user_id, std::move(away_message));
-  update_user_full(user_full, user_id, "on_update_my_user_away_message");
-}
-
-void UserManager::on_update_user_full_away_message(UserFull *user_full, UserId user_id,
-                                                   BusinessAwayMessage &&away_message) const {
-  CHECK(user_full != nullptr);
-  if (away_message.is_valid() && user_id != get_my_id()) {
-    LOG(ERROR) << "Receive " << away_message << " for " << user_id;
-    return;
-  }
-  if (BusinessInfo::set_away_message(user_full->business_info, std::move(away_message))) {
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_my_user_greeting_message(BusinessGreetingMessage &&greeting_message) {
-  auto user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(user_id, "on_update_my_user_greeting_message");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_greeting_message(user_full, user_id, std::move(greeting_message));
-  update_user_full(user_full, user_id, "on_update_my_user_greeting_message");
-}
-
-void UserManager::on_update_user_full_greeting_message(UserFull *user_full, UserId user_id,
-                                                       BusinessGreetingMessage &&greeting_message) const {
-  CHECK(user_full != nullptr);
-  if (greeting_message.is_valid() && user_id != get_my_id()) {
-    LOG(ERROR) << "Receive " << greeting_message << " for " << user_id;
-    return;
-  }
-  if (BusinessInfo::set_greeting_message(user_full->business_info, std::move(greeting_message))) {
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_my_user_intro(BusinessIntro &&intro) {
-  auto user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(user_id, "on_update_my_user_intro");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_intro(user_full, user_id, std::move(intro));
-  update_user_full(user_full, user_id, "on_update_my_user_intro");
-}
-
-void UserManager::on_update_user_full_intro(UserFull *user_full, UserId user_id, BusinessIntro &&intro) {
-  CHECK(user_full != nullptr);
-  if (BusinessInfo::set_intro(user_full->business_info, std::move(intro))) {
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_commands(UserId user_id,
-                                          vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands) {
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_commands");
-  if (user_full != nullptr) {
-    on_update_user_full_commands(user_full, user_id, std::move(bot_commands));
-    update_user_full(user_full, user_id, "on_update_user_commands");
-  }
-}
-
-void UserManager::on_update_user_full_commands(
-    UserFull *user_full, UserId user_id, vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands) {
-  CHECK(user_full != nullptr);
-  auto commands =
-      transform(std::move(bot_commands), [](telegram_api::object_ptr<telegram_api::botCommand> &&bot_command) {
-        return BotCommand(std::move(bot_command));
-      });
-  if (user_full->bot_info == nullptr && commands.empty()) {
-    return;
-  }
-  auto bot_info = user_full->add_bot_info();
-  if (bot_info->commands != commands) {
-    bot_info->commands = std::move(commands);
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_referral_program_info(UserId user_id, ReferralProgramInfo &&referral_program_info) {
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_referral_program_info");
-  if (user_full != nullptr) {
-    on_update_user_full_referral_program_info(user_full, user_id, std::move(referral_program_info));
-    update_user_full(user_full, user_id, "on_update_user_referral_program_info");
-  }
-}
-
-void UserManager::on_update_user_full_referral_program_info(UserFull *user_full, UserId user_id,
-                                                            ReferralProgramInfo &&referral_program_info) {
-  CHECK(user_full != nullptr);
-  if (user_full->bot_info == nullptr && !referral_program_info.is_valid()) {
-    return;
-  }
-  auto bot_info = user_full->add_bot_info();
-  if (bot_info->referral_program_info != referral_program_info) {
-    bot_info->referral_program_info = std::move(referral_program_info);
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_verifier_settings(UserId user_id,
-                                                   unique_ptr<BotVerifierSettings> &&verifier_settings) {
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_verifier_settings");
-  if (user_full != nullptr) {
-    on_update_user_full_verifier_settings(user_full, user_id, std::move(verifier_settings));
-    update_user_full(user_full, user_id, "on_update_user_verifier_settings");
-  }
-}
-
-void UserManager::on_update_user_full_verifier_settings(UserFull *user_full, UserId user_id,
-                                                        unique_ptr<BotVerifierSettings> &&verifier_settings) {
-  CHECK(user_full != nullptr);
-  if (user_full->bot_info == nullptr && verifier_settings == nullptr) {
-    return;
-  }
-  auto bot_info = user_full->add_bot_info();
-  if (bot_info->verifier_settings != verifier_settings) {
-    bot_info->verifier_settings = std::move(verifier_settings);
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_need_phone_number_privacy_exception(UserId user_id,
-                                                                     bool need_phone_number_privacy_exception) {
-  LOG(INFO) << "Receive " << need_phone_number_privacy_exception << " need phone number privacy exception with "
-            << user_id;
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_need_phone_number_privacy_exception");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_need_phone_number_privacy_exception(user_full, user_id, need_phone_number_privacy_exception);
-  update_user_full(user_full, user_id, "on_update_user_need_phone_number_privacy_exception");
-}
-
-void UserManager::on_update_user_full_need_phone_number_privacy_exception(
-    UserFull *user_full, UserId user_id, bool need_phone_number_privacy_exception) const {
-  CHECK(user_full != nullptr);
-  if (need_phone_number_privacy_exception) {
-    const User *u = get_user(user_id);
-    if (u == nullptr || u->is_contact || user_id == get_my_id()) {
-      need_phone_number_privacy_exception = false;
-    }
-  }
-  if (user_full->need_phone_number_privacy_exception != need_phone_number_privacy_exception) {
-    user_full->need_phone_number_privacy_exception = need_phone_number_privacy_exception;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_charge_paid_message_stars(UserId user_id, int64 charge_paid_message_stars) {
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_charge_paid_message_stars");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_charge_paid_message_stars(user_full, user_id, charge_paid_message_stars);
-  update_user_full(user_full, user_id, "on_update_user_charge_paid_message_stars");
-}
-
-void UserManager::on_update_user_full_charge_paid_message_stars(UserFull *user_full, UserId user_id,
-                                                                int64 charge_paid_message_stars) const {
-  CHECK(user_full != nullptr);
-  if (user_full->charge_paid_message_stars != charge_paid_message_stars) {
-    user_full->charge_paid_message_stars = charge_paid_message_stars;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_full_send_paid_message_stars(UserFull *user_full, UserId user_id,
-                                                              int64 send_paid_message_stars) const {
-  CHECK(user_full != nullptr);
-  if (user_full->send_paid_message_stars != send_paid_message_stars) {
-    user_full->send_paid_message_stars = send_paid_message_stars;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_user_wallpaper_overridden(UserId user_id, bool wallpaper_overridden) {
-  LOG(INFO) << "Receive " << wallpaper_overridden << " set chat background for " << user_id;
-  if (!user_id.is_valid()) {
-    LOG(ERROR) << "Receive invalid " << user_id;
-    return;
-  }
-
-  UserFull *user_full = get_user_full_force(user_id, "on_update_user_wallpaper_overridden");
-  if (user_full == nullptr) {
-    return;
-  }
-  on_update_user_full_wallpaper_overridden(user_full, user_id, wallpaper_overridden);
-  update_user_full(user_full, user_id, "on_update_user_wallpaper_overridden");
-}
-
-void UserManager::on_update_user_full_wallpaper_overridden(UserFull *user_full, UserId user_id,
-                                                           bool wallpaper_overridden) const {
-  CHECK(user_full != nullptr);
-  if (user_full->wallpaper_overridden != wallpaper_overridden) {
-    user_full->wallpaper_overridden = wallpaper_overridden;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_bot_menu_button(UserId bot_user_id,
-                                            telegram_api::object_ptr<telegram_api::BotMenuButton> &&bot_menu_button) {
-  if (!bot_user_id.is_valid()) {
-    LOG(ERROR) << "Receive updateBotMenuButton about invalid " << bot_user_id;
-    return;
-  }
-  if (!have_user_force(bot_user_id, "on_update_bot_menu_button") || !is_user_bot(bot_user_id)) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto user_full = get_user_full_force(bot_user_id, "on_update_bot_menu_button");
-  if (user_full != nullptr) {
-    on_update_user_full_menu_button(user_full, bot_user_id, std::move(bot_menu_button));
-    update_user_full(user_full, bot_user_id, "on_update_bot_menu_button");
-  }
-}
-
-void UserManager::on_update_user_full_menu_button(
-    UserFull *user_full, UserId user_id, telegram_api::object_ptr<telegram_api::BotMenuButton> &&bot_menu_button) {
-  CHECK(user_full != nullptr);
-  auto new_button = get_bot_menu_button(std::move(bot_menu_button));
-  if (user_full->bot_info == nullptr && new_button == nullptr) {
-    return;
-  }
-  auto bot_info = user_full->add_bot_info();
-  bool is_changed;
-  if (bot_info->menu_button == nullptr) {
-    is_changed = (new_button != nullptr);
-  } else {
-    is_changed = (new_button == nullptr || *bot_info->menu_button != *new_button);
-  }
-  if (is_changed) {
-    bot_info->menu_button = std::move(new_button);
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_bot_has_preview_medias(UserId bot_user_id, bool has_preview_medias) {
-  if (!bot_user_id.is_valid()) {
-    LOG(ERROR) << "Receive updateBotHasPreviewMedias about invalid " << bot_user_id;
-    return;
-  }
-  if (!have_user_force(bot_user_id, "on_update_bot_has_preview_medias") || !is_user_bot(bot_user_id)) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto user_full = get_user_full_force(bot_user_id, "on_update_bot_has_preview_medias");
-  if (user_full != nullptr) {
-    on_update_user_full_has_preview_medias(user_full, bot_user_id, has_preview_medias);
-    update_user_full(user_full, bot_user_id, "on_update_bot_has_preview_medias");
-  }
-}
-
-void UserManager::on_update_user_full_has_preview_medias(UserFull *user_full, UserId user_id, bool has_preview_medias) {
-  CHECK(user_full != nullptr);
-  if (user_full->has_preview_medias != has_preview_medias) {
-    user_full->has_preview_medias = has_preview_medias;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_bot_can_manage_emoji_status(UserId bot_user_id, bool can_manage_emoji_status) {
-  CHECK(bot_user_id.is_valid());
-  if (!have_user_force(bot_user_id, "on_update_bot_can_manage_emoji_status") || !is_user_bot(bot_user_id)) {
-    return;
-  }
-  if (td_->auth_manager_->is_bot()) {
-    return;
-  }
-
-  auto user_full = get_user_full_force(bot_user_id, "on_update_bot_can_manage_emoji_status");
-  if (user_full != nullptr) {
-    on_update_user_full_can_manage_emoji_status(user_full, bot_user_id, can_manage_emoji_status);
-    update_user_full(user_full, bot_user_id, "on_update_bot_can_manage_emoji_status");
-  }
-}
-
-void UserManager::on_update_user_full_can_manage_emoji_status(UserFull *user_full, UserId user_id,
-                                                              bool can_manage_emoji_status) {
-  CHECK(user_full != nullptr);
-  if (user_full->can_manage_emoji_status != can_manage_emoji_status) {
-    user_full->can_manage_emoji_status = can_manage_emoji_status;
-    user_full->is_changed = true;
-  }
-}
-
-void UserManager::on_update_secret_chat(SecretChatId secret_chat_id, int64 access_hash, UserId user_id,
-                                        SecretChatState state, bool is_outbound, int32 ttl, int32 date, string key_hash,
-                                        int32 layer, FolderId initial_folder_id) {
-  LOG(INFO) << "Update " << secret_chat_id << " with " << user_id << " and access_hash " << access_hash;
-  auto *secret_chat = add_secret_chat(secret_chat_id);
-  if (access_hash != secret_chat->access_hash) {
-    secret_chat->access_hash = access_hash;
-    secret_chat->need_save_to_database = true;
-  }
-  if (user_id.is_valid() && user_id != secret_chat->user_id) {
-    if (secret_chat->user_id.is_valid()) {
-      LOG(ERROR) << "Secret chat user has changed from " << secret_chat->user_id << " to " << user_id;
-      auto &old_secret_chat_ids = secret_chats_with_user_[secret_chat->user_id];
-      td::remove(old_secret_chat_ids, secret_chat_id);
-    }
-    secret_chat->user_id = user_id;
-    secret_chats_with_user_[secret_chat->user_id].push_back(secret_chat_id);
-    secret_chat->is_changed = true;
-  }
-  if (state != SecretChatState::Unknown && state != secret_chat->state) {
-    secret_chat->state = state;
-    secret_chat->is_changed = true;
-    secret_chat->is_state_changed = true;
-  }
-  if (is_outbound != secret_chat->is_outbound) {
-    secret_chat->is_outbound = is_outbound;
-    secret_chat->is_changed = true;
-  }
-
-  if (ttl != -1 && ttl != secret_chat->ttl) {
-    secret_chat->ttl = ttl;
-    secret_chat->need_save_to_database = true;
-    secret_chat->is_ttl_changed = true;
-  }
-  if (date != 0 && date != secret_chat->date) {
-    secret_chat->date = date;
-    secret_chat->need_save_to_database = true;
-  }
-  if (!key_hash.empty() && key_hash != secret_chat->key_hash) {
-    secret_chat->key_hash = std::move(key_hash);
-    secret_chat->is_changed = true;
-  }
-  if (layer != 0 && layer != secret_chat->layer) {
-    secret_chat->layer = layer;
-    secret_chat->is_changed = true;
-  }
-  if (initial_folder_id != FolderId() && initial_folder_id != secret_chat->initial_folder_id) {
-    secret_chat->initial_folder_id = initial_folder_id;
-    secret_chat->is_changed = true;
-  }
-
-  update_secret_chat(secret_chat, secret_chat_id);
-}
-
-void UserManager::on_update_online_status_privacy() {
-  td_->create_handler<GetContactsStatusesQuery>()->send();
-}
-
-void UserManager::on_update_phone_number_privacy() {
-  CHECK(!td_->auth_manager_->is_bot());
-  // all UserFull.need_phone_number_privacy_exception can be outdated now,
-  // so mark all of them as expired
-  users_full_.foreach([&](const UserId &user_id, unique_ptr<UserFull> &user_full) { user_full->expires_at = 0.0; });
-}
-
-void UserManager::on_ignored_restriction_reasons_changed() {
-  restricted_user_ids_.foreach([&](const UserId &user_id) {
-    send_closure(G()->td(), &Td::send_update, get_update_user_object(user_id, get_user(user_id)));
-  });
-}
-
-td_api::object_ptr<td_api::updateFreezeState> UserManager::get_update_freeze_state_object() const {
-  return td_api::make_object<td_api::updateFreezeState>(freeze_since_date_ > 0, freeze_since_date_, freeze_until_date_,
-                                                        freeze_appeal_url_);
-}
-
-void UserManager::on_update_freeze_state(int32 freeze_since_date, int32 freeze_until_date, string freeze_appeal_url) {
-  if (freeze_since_date == freeze_since_date_ && freeze_until_date == freeze_until_date_ &&
-      freeze_appeal_url == freeze_appeal_url_) {
-    return;
-  }
-  freeze_since_date_ = freeze_since_date;
-  freeze_until_date_ = freeze_until_date;
-  freeze_appeal_url_ = std::move(freeze_appeal_url);
-  send_closure(G()->td(), &Td::send_update, get_update_freeze_state_object());
-
-  if (freeze_since_date_ > 0) {
-    G()->td_db()->get_binlog_pmc()->set(
-        "freeze_state", PSTRING() << freeze_since_date_ << ' ' << freeze_until_date_ << ' ' << freeze_appeal_url_);
-  } else {
-    G()->td_db()->get_binlog_pmc()->erase("freeze_state");
-  }
-}
-
-void UserManager::invalidate_user_full(UserId user_id) {
-  auto user_full = get_user_full_force(user_id, "invalidate_user_full");
-  if (user_full != nullptr) {
-    td_->dialog_manager_->on_dialog_info_full_invalidated(DialogId(user_id));
-
-    if (!user_full->is_expired()) {
-      user_full->expires_at = 0.0;
-      user_full->need_save_to_database = true;
-
-      update_user_full(user_full, user_id, "invalidate_user_full");
-    }
-  }
-}
-
-bool UserManager::have_user(UserId user_id) const {
-  auto u = get_user(user_id);
-  return u != nullptr && u->is_received;
-}
-
-bool UserManager::have_min_user(UserId user_id) const {
-  return users_.count(user_id) > 0;
-}
-
-const UserManager::User *UserManager::get_user(UserId user_id) const {
-  return users_.get_pointer(user_id);
-}
-
-UserManager::User *UserManager::get_user(UserId user_id) {
-  return users_.get_pointer(user_id);
-}
-
-UserManager::User *UserManager::add_user(UserId user_id) {
-  CHECK(user_id.is_valid());
-  auto &user_ptr = users_[user_id];
-  if (user_ptr == nullptr) {
-    user_ptr = make_unique<User>();
-  }
-  return user_ptr.get();
-}
-
-void UserManager::save_user(User *u, UserId user_id, bool from_binlog) {
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-  CHECK(u != nullptr);
-  if (!u->is_saved || !u->is_status_saved) {  // TODO more effective handling of !u->is_status_saved
-    if (!from_binlog) {
-      auto log_event = UserLogEvent(user_id, u);
-      auto storer = get_log_event_storer(log_event);
-      if (u->log_event_id == 0) {
-        u->log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::Users, storer);
-      } else {
-        binlog_rewrite(G()->td_db()->get_binlog(), u->log_event_id, LogEvent::HandlerType::Users, storer);
-      }
-    }
-
-    save_user_to_database(u, user_id);
-  }
-}
-
-string UserManager::get_user_database_key(UserId user_id) {
-  return PSTRING() << "us" << user_id.get();
-}
-
-string UserManager::get_user_database_value(const User *u) {
-  return log_event_store(*u).as_slice().str();
-}
-
-void UserManager::save_user_to_database(User *u, UserId user_id) {
-  CHECK(u != nullptr);
-  if (u->is_being_saved) {
-    return;
-  }
-  if (loaded_from_database_users_.count(user_id)) {
-    save_user_to_database_impl(u, user_id, get_user_database_value(u));
-    return;
-  }
-  if (load_user_from_database_queries_.count(user_id) != 0) {
-    return;
-  }
-
-  load_user_from_database_impl(user_id, Auto());
-}
-
-void UserManager::save_user_to_database_impl(User *u, UserId user_id, string value) {
-  CHECK(u != nullptr);
-  CHECK(load_user_from_database_queries_.count(user_id) == 0);
-  CHECK(!u->is_being_saved);
-  u->is_being_saved = true;
-  u->is_saved = true;
-  u->is_status_saved = true;
-  LOG(INFO) << "Trying to save to database " << user_id;
-  G()->td_db()->get_sqlite_pmc()->set(
-      get_user_database_key(user_id), std::move(value), PromiseCreator::lambda([user_id](Result<> result) {
-        send_closure(G()->user_manager(), &UserManager::on_save_user_to_database, user_id, result.is_ok());
-      }));
-}
-
-void UserManager::on_save_user_to_database(UserId user_id, bool success) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  User *u = get_user(user_id);
-  CHECK(u != nullptr);
-  LOG_CHECK(u->is_being_saved) << success << ' ' << user_id << ' ' << u->is_saved << ' ' << u->is_status_saved << ' '
-                               << load_user_from_database_queries_.count(user_id) << ' ' << u->is_received << ' '
-                               << u->is_deleted << ' ' << u->is_bot << ' ' << u->need_save_to_database << ' '
-                               << u->is_changed << ' ' << u->is_status_changed << ' ' << u->is_name_changed << ' '
-                               << u->is_username_changed << ' ' << u->is_photo_changed << ' '
-                               << u->is_is_contact_changed << ' ' << u->is_is_deleted_changed << ' '
-                               << u->is_stories_hidden_changed << ' ' << u->log_event_id;
-  CHECK(load_user_from_database_queries_.count(user_id) == 0);
-  u->is_being_saved = false;
-
-  if (!success) {
-    LOG(ERROR) << "Failed to save " << user_id << " to database";
-    u->is_saved = false;
-    u->is_status_saved = false;
-  } else {
-    LOG(INFO) << "Successfully saved " << user_id << " to database";
-  }
-  if (u->is_saved && u->is_status_saved) {
-    if (u->log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), u->log_event_id);
-      u->log_event_id = 0;
-    }
-  } else {
-    save_user(u, user_id, u->log_event_id != 0);
-  }
-}
-
-void UserManager::load_user_from_database(User *u, UserId user_id, Promise<Unit> promise) {
-  if (loaded_from_database_users_.count(user_id)) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  CHECK(u == nullptr || !u->is_being_saved);
-  load_user_from_database_impl(user_id, std::move(promise));
-}
-
-void UserManager::load_user_from_database_impl(UserId user_id, Promise<Unit> promise) {
-  LOG(INFO) << "Load " << user_id << " from database";
-  auto &load_user_queries = load_user_from_database_queries_[user_id];
-  load_user_queries.push_back(std::move(promise));
-  if (load_user_queries.size() == 1u) {
-    G()->td_db()->get_sqlite_pmc()->get(get_user_database_key(user_id), PromiseCreator::lambda([user_id](string value) {
-                                          send_closure(G()->user_manager(), &UserManager::on_load_user_from_database,
-                                                       user_id, std::move(value), false);
-                                        }));
-  }
-}
-
-void UserManager::on_load_user_from_database(UserId user_id, string value, bool force) {
-  if (G()->close_flag() && !force) {
-    // the user is in Binlog and will be saved after restart
-    return;
-  }
-
-  CHECK(user_id.is_valid());
-  if (!loaded_from_database_users_.insert(user_id).second) {
-    return;
-  }
-
-  auto it = load_user_from_database_queries_.find(user_id);
-  vector<Promise<Unit>> promises;
-  if (it != load_user_from_database_queries_.end()) {
-    promises = std::move(it->second);
-    CHECK(!promises.empty());
-    load_user_from_database_queries_.erase(it);
-  }
-
-  LOG(INFO) << "Successfully loaded " << user_id << " of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_user_database_key(user_id), Auto());
-  //  return;
-
-  User *u = get_user(user_id);
-  if (u == nullptr) {
-    if (!value.empty()) {
-      u = add_user(user_id);
-
-      if (log_event_parse(*u, value).is_error()) {
-        LOG(ERROR) << "Failed to load " << user_id << " from database";
-        users_.erase(user_id);
-      } else {
-        u->is_saved = true;
-        u->is_status_saved = true;
-        update_user(u, user_id, true, true);
-      }
-    }
-  } else {
-    CHECK(!u->is_saved);  // user can't be saved before load completes
-    CHECK(!u->is_being_saved);
-    auto new_value = get_user_database_value(u);
-    if (value != new_value) {
-      save_user_to_database_impl(u, user_id, std::move(new_value));
-    } else if (u->log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), u->log_event_id);
-      u->log_event_id = 0;
-    }
-  }
-
-  set_promises(promises);
-}
-
-bool UserManager::have_user_force(UserId user_id, const char *source) {
-  return get_user_force(user_id, source) != nullptr;
-}
-
-UserManager::User *UserManager::get_user_force(UserId user_id, const char *source) {
-  auto u = get_user_force_impl(user_id, source);
-  if ((u == nullptr || !u->is_received) &&
-      (user_id == get_service_notifications_user_id() || user_id == get_replies_bot_user_id() ||
-       user_id == get_verification_codes_bot_user_id() || user_id == get_anonymous_bot_user_id() ||
-       user_id == get_channel_bot_user_id() || user_id == get_anti_spam_bot_user_id())) {
-    int32 flags = telegram_api::user::ACCESS_HASH_MASK;
-    bool need_apply_min_photo = true;
-    bool is_bot = false;
-    bool is_private_bot = false;
-    bool is_verified = false;
-    bool is_support = false;
-    int64 profile_photo_id = 0;
-    int32 profile_photo_dc_id = 1;
-    string first_name;
-    string last_name;
-    string username;
-    string phone_number;
-    int32 bot_info_version = 0;
-
-    if (user_id == get_service_notifications_user_id()) {
-      is_verified = true;
-      is_support = true;
-      first_name = "Telegram";
-      if (G()->is_test_dc()) {
-        last_name = "Notifications";
-      } else {
-        profile_photo_id = 3337190045231036;
-      }
-      phone_number = "42777";
-    } else if (user_id == get_replies_bot_user_id()) {
-      is_bot = true;
-      if (!G()->is_test_dc()) {
-        is_private_bot = true;
-      }
-      first_name = "Replies";
-      username = "replies";
-      bot_info_version = G()->is_test_dc() ? 1 : 3;
-    } else if (user_id == get_verification_codes_bot_user_id()) {
-      is_bot = true;
-      is_private_bot = true;
-      is_verified = true;
-      first_name = "Verification Codes";
-      username = "VerificationCodes";
-      bot_info_version = G()->is_test_dc() ? 4 : 2;
-    } else if (user_id == get_anonymous_bot_user_id()) {
-      is_bot = true;
-      if (!G()->is_test_dc()) {
-        is_private_bot = true;
-      }
-      first_name = "Group";
-      username = G()->is_test_dc() ? "izgroupbot" : "GroupAnonymousBot";
-      bot_info_version = G()->is_test_dc() ? 1 : 3;
-      profile_photo_id = 5159307831025969322;
-    } else if (user_id == get_channel_bot_user_id()) {
-      is_bot = true;
-      if (!G()->is_test_dc()) {
-        is_private_bot = true;
-      }
-      first_name = G()->is_test_dc() ? "Channels" : "Channel";
-      username = G()->is_test_dc() ? "channelsbot" : "Channel_Bot";
-      bot_info_version = G()->is_test_dc() ? 1 : 4;
-      profile_photo_id = 587627495930570665;
-    } else if (user_id == get_anti_spam_bot_user_id()) {
-      is_bot = true;
-      if (G()->is_test_dc()) {
-        first_name = "antispambot";
-        username = "tantispambot";
-      } else {
-        is_verified = true;
-        first_name = "Telegram Anti-Spam";
-        username = "tgsantispambot";
-        profile_photo_id = 5170408289966598902;
-      }
-    }
-    if (!phone_number.empty()) {
-      flags |= telegram_api::user::PHONE_MASK;
-    }
-
-    telegram_api::object_ptr<telegram_api::userProfilePhoto> profile_photo;
-    if (!G()->is_test_dc() && profile_photo_id != 0) {
-      profile_photo = telegram_api::make_object<telegram_api::userProfilePhoto>(0, false, false, profile_photo_id,
-                                                                                BufferSlice(), profile_photo_dc_id);
-    }
-
-    auto user = telegram_api::make_object<telegram_api::user>(
-        flags, false, false, false, false, is_bot, false, is_private_bot, is_verified, false, false, false, false,
-        false, need_apply_min_photo, false, false, false, false, 0, false, false, false, false, false, false, false,
-        user_id.get(), 1, first_name, string(), username, phone_number, std::move(profile_photo), nullptr,
-        bot_info_version, Auto(), string(), string(), nullptr,
-        vector<telegram_api::object_ptr<telegram_api::username>>(), 0, nullptr, nullptr, 0, 0, 0);
-    on_get_user(std::move(user), "get_user_force");
-    u = get_user(user_id);
-    CHECK(u != nullptr && u->is_received);
-
-    reload_user(user_id, Promise<Unit>(), "get_user_force");
-  }
-  return u;
-}
-
-UserManager::User *UserManager::get_user_force_impl(UserId user_id, const char *source) {
-  if (!user_id.is_valid()) {
-    return nullptr;
-  }
-
-  User *u = get_user(user_id);
-  if (u != nullptr) {
-    return u;
-  }
-  if (!G()->use_chat_info_database()) {
-    return nullptr;
-  }
-  if (loaded_from_database_users_.count(user_id)) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load " << user_id << " from database from " << source;
-  on_load_user_from_database(user_id, G()->td_db()->get_sqlite_sync_pmc()->get(get_user_database_key(user_id)), true);
-  return get_user(user_id);
-}
-
-void UserManager::send_get_me_query(Td *td, Promise<Unit> &&promise) {
-  vector<telegram_api::object_ptr<telegram_api::InputUser>> users;
-  users.push_back(telegram_api::make_object<telegram_api::inputUserSelf>());
-  td->create_handler<GetUsersQuery>(std::move(promise))->send(std::move(users));
-}
-
-UserId UserManager::get_me(Promise<Unit> &&promise) {
-  auto my_id = get_my_id();
-  if (!have_user_force(my_id, "get_me")) {
-    get_user_queries_.add_query(my_id.get(), std::move(promise), "get_me");
-    return UserId();
-  }
-
-  promise.set_value(Unit());
-  return my_id;
-}
-
-bool UserManager::get_user(UserId user_id, int left_tries, Promise<Unit> &&promise) {
-  if (!user_id.is_valid()) {
-    promise.set_error(Status::Error(400, "Invalid user identifier"));
-    return false;
-  }
-
-  if (user_id == get_service_notifications_user_id() || user_id == get_replies_bot_user_id() ||
-      user_id == get_verification_codes_bot_user_id() || user_id == get_anonymous_bot_user_id() ||
-      user_id == get_channel_bot_user_id() || user_id == get_anti_spam_bot_user_id()) {
-    get_user_force(user_id, "get_user");
-  }
-
-  if (td_->auth_manager_->is_bot() ? !have_user(user_id) : !have_min_user(user_id)) {
-    if (left_tries > 2 && G()->use_chat_info_database()) {
-      send_closure_later(actor_id(this), &UserManager::load_user_from_database, nullptr, user_id, std::move(promise));
-      return false;
-    }
-    auto r_input_user = get_input_user(user_id);
-    if (left_tries == 1 || r_input_user.is_error()) {
-      if (r_input_user.is_error()) {
-        promise.set_error(r_input_user.move_as_error());
-      } else {
-        promise.set_error(Status::Error(400, "User not found"));
-      }
-      return false;
-    }
-
-    get_user_queries_.add_query(user_id.get(), std::move(promise), "get_user");
-    return false;
-  }
-
-  promise.set_value(Unit());
-  return true;
-}
-
-void UserManager::reload_user(UserId user_id, Promise<Unit> &&promise, const char *source) {
-  if (!user_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid user identifier"));
-  }
-
-  have_user_force(user_id, source);
-
-  TRY_STATUS_PROMISE(promise, get_input_user(user_id));
-
-  get_user_queries_.add_query(user_id.get(), std::move(promise), source);
-}
-
-Result<telegram_api::object_ptr<telegram_api::InputUser>> UserManager::get_input_user(UserId user_id) const {
-  if (user_id == get_my_id()) {
-    return telegram_api::make_object<telegram_api::inputUserSelf>();
-  }
-
-  const User *u = get_user(user_id);
-  if (u == nullptr || u->access_hash == -1 || u->is_min_access_hash) {
-    if (td_->auth_manager_->is_bot() && user_id.is_valid()) {
-      return telegram_api::make_object<telegram_api::inputUser>(user_id.get(), 0);
-    }
-    auto it = user_messages_.find(user_id);
-    if (it != user_messages_.end()) {
-      CHECK(!it->second.empty());
-      auto message_full_id = *it->second.begin();
-      return telegram_api::make_object<telegram_api::inputUserFromMessage>(
-          td_->chat_manager_->get_simple_input_peer(message_full_id.get_dialog_id()),
-          message_full_id.get_message_id().get_server_message_id().get(), user_id.get());
-    }
-    if (u == nullptr) {
-      return Status::Error(400, "User not found");
-    } else {
-      return Status::Error(400, "Have no access to the user");
-    }
-  }
-
-  return telegram_api::make_object<telegram_api::inputUser>(user_id.get(), u->access_hash);
-}
-
-telegram_api::object_ptr<telegram_api::InputUser> UserManager::get_input_user_force(UserId user_id) const {
-  auto r_input_user = get_input_user(user_id);
-  if (r_input_user.is_error()) {
-    CHECK(user_id.is_valid());
-    return telegram_api::make_object<telegram_api::inputUser>(user_id.get(), 0);
-  }
-  return r_input_user.move_as_ok();
-}
-
-bool UserManager::have_input_peer_user(UserId user_id, AccessRights access_rights) const {
-  if (user_id == get_my_id()) {
-    return true;
-  }
-  return have_input_peer_user(get_user(user_id), user_id, access_rights);
-}
-
-bool UserManager::have_input_peer_user(const User *u, UserId user_id, AccessRights access_rights) const {
-  if (u == nullptr || u->access_hash == -1 || u->is_min_access_hash) {
-    if (u == nullptr) {
-      LOG(DEBUG) << "Have no user";
-    } else {
-      LOG(DEBUG) << "Have user without access hash";
-    }
-    if (td_->auth_manager_->is_bot() && user_id.is_valid()) {
-      return true;
-    }
-    if (user_messages_.count(user_id) != 0) {
-      return true;
-    }
-    return false;
-  }
-  if (access_rights == AccessRights::Know) {
-    return true;
-  }
-  if (access_rights == AccessRights::Read) {
-    return true;
-  }
-  if (u->is_deleted) {
-    LOG(DEBUG) << "Have a deleted user";
-    return false;
-  }
-  return true;
-}
-
-telegram_api::object_ptr<telegram_api::InputPeer> UserManager::get_input_peer_user(UserId user_id,
-                                                                                   AccessRights access_rights) const {
-  if (user_id == get_my_id()) {
-    return telegram_api::make_object<telegram_api::inputPeerSelf>();
-  }
-  const User *u = get_user(user_id);
-  if (!have_input_peer_user(u, user_id, access_rights)) {
-    return nullptr;
-  }
-  if (u == nullptr || u->access_hash == -1 || u->is_min_access_hash) {
-    if (td_->auth_manager_->is_bot() && user_id.is_valid()) {
-      return telegram_api::make_object<telegram_api::inputPeerUser>(user_id.get(), 0);
-    }
-    auto it = user_messages_.find(user_id);
-    CHECK(it != user_messages_.end());
-    CHECK(!it->second.empty());
-    auto message_full_id = *it->second.begin();
-    return telegram_api::make_object<telegram_api::inputPeerUserFromMessage>(
-        td_->chat_manager_->get_simple_input_peer(message_full_id.get_dialog_id()),
-        message_full_id.get_message_id().get_server_message_id().get(), user_id.get());
-  }
-
-  return telegram_api::make_object<telegram_api::inputPeerUser>(user_id.get(), u->access_hash);
-}
-
-bool UserManager::have_input_encrypted_peer(SecretChatId secret_chat_id, AccessRights access_rights) const {
-  return have_input_encrypted_peer(get_secret_chat(secret_chat_id), access_rights);
-}
-
-bool UserManager::have_input_encrypted_peer(const SecretChat *secret_chat, AccessRights access_rights) {
-  if (secret_chat == nullptr) {
-    LOG(DEBUG) << "Have no secret chat";
-    return false;
-  }
-  if (access_rights == AccessRights::Know) {
-    return true;
-  }
-  if (access_rights == AccessRights::Read) {
-    return true;
-  }
-  return secret_chat->state == SecretChatState::Active;
-}
-
-telegram_api::object_ptr<telegram_api::inputEncryptedChat> UserManager::get_input_encrypted_chat(
-    SecretChatId secret_chat_id, AccessRights access_rights) const {
-  auto sc = get_secret_chat(secret_chat_id);
-  if (!have_input_encrypted_peer(sc, access_rights)) {
-    return nullptr;
-  }
-
-  return telegram_api::make_object<telegram_api::inputEncryptedChat>(secret_chat_id.get(), sc->access_hash);
-}
-
-bool UserManager::is_user_contact(UserId user_id, bool is_mutual) const {
-  return is_user_contact(get_user(user_id), user_id, is_mutual);
-}
-
-bool UserManager::is_user_contact(const User *u, UserId user_id, bool is_mutual) const {
-  return u != nullptr && (is_mutual ? u->is_mutual_contact : u->is_contact) && user_id != get_my_id();
-}
-
-bool UserManager::is_user_premium(UserId user_id) const {
-  return is_user_premium(get_user(user_id));
-}
-
-bool UserManager::is_user_premium(const User *u) {
-  return u != nullptr && u->is_premium;
-}
-
-bool UserManager::is_user_deleted(UserId user_id) const {
-  return is_user_deleted(get_user(user_id));
-}
-
-bool UserManager::is_user_deleted(const User *u) {
-  return u == nullptr || u->is_deleted;
-}
-
-bool UserManager::is_user_support(UserId user_id) const {
-  return is_user_support(get_user(user_id));
-}
-
-bool UserManager::is_user_support(const User *u) {
-  return u != nullptr && !u->is_deleted && u->is_support;
-}
-
-bool UserManager::is_user_bot(UserId user_id) const {
-  return is_user_bot(get_user(user_id));
-}
-
-bool UserManager::is_user_bot(const User *u) {
-  return u != nullptr && !u->is_deleted && u->is_bot;
-}
-
-Result<UserManager::BotData> UserManager::get_bot_data(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return Status::Error(400, "Bot not found");
-  }
-  if (!u->is_bot) {
-    return Status::Error(400, "User is not a bot");
-  }
-  if (u->is_deleted) {
-    return Status::Error(400, "Bot is deleted");
-  }
-  if (!u->is_received) {
-    return Status::Error(400, "Bot is inaccessible");
-  }
-
-  BotData bot_data;
-  bot_data.username = u->usernames.get_first_username();
-  bot_data.can_be_edited = u->can_be_edited_bot;
-  bot_data.can_join_groups = u->can_join_groups;
-  bot_data.can_read_all_group_messages = u->can_read_all_group_messages;
-  bot_data.has_main_app = u->has_main_app;
-  bot_data.is_inline = u->is_inline_bot;
-  bot_data.is_business = u->is_business_bot;
-  bot_data.need_location = u->need_location_bot;
-  bot_data.can_be_added_to_attach_menu = u->can_be_added_to_attach_menu;
-  return bot_data;
-}
-
-bool UserManager::is_user_online(UserId user_id, int32 tolerance, int32 unix_time) const {
-  if (unix_time <= 0) {
-    unix_time = G()->unix_time();
-  }
-  int32 was_online = get_user_was_online(get_user(user_id), user_id, unix_time);
-  return was_online > unix_time - tolerance;
-}
-
-int32 UserManager::get_user_was_online(UserId user_id, int32 unix_time) const {
-  if (unix_time <= 0) {
-    unix_time = G()->unix_time();
-  }
-  return get_user_was_online(get_user(user_id), user_id, unix_time);
-}
-
-int32 UserManager::get_user_was_online(const User *u, UserId user_id, int32 unix_time) const {
-  if (u == nullptr || u->is_deleted) {
-    return 0;
-  }
-
-  int32 was_online = u->was_online;
-  if (user_id == get_my_id()) {
-    if (my_was_online_local_ != 0) {
-      was_online = my_was_online_local_;
-    }
-  } else {
-    if (u->local_was_online > 0 && u->local_was_online > was_online && u->local_was_online > unix_time) {
-      was_online = u->local_was_online;
-    }
-  }
-  return was_online;
-}
-
-bool UserManager::is_user_status_exact(UserId user_id) const {
-  auto u = get_user(user_id);
-  return u != nullptr && !u->is_deleted && !u->is_bot && u->was_online > 0;
-}
-
-bool UserManager::is_user_received_from_server(UserId user_id) const {
-  const auto *u = get_user(user_id);
-  return u != nullptr && u->is_received_from_server;
-}
-
-bool UserManager::can_report_user(UserId user_id) const {
-  auto u = get_user(user_id);
-  return u != nullptr && !u->is_deleted && !u->is_support && u->is_bot;
-}
-
-const DialogPhoto *UserManager::get_user_dialog_photo(UserId user_id) {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return nullptr;
-  }
-
-  apply_pending_user_photo(u, user_id, "get_user_dialog_photo");
-  return &u->photo;
-}
-
-const DialogPhoto *UserManager::get_secret_chat_dialog_photo(SecretChatId secret_chat_id) {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return nullptr;
-  }
-  return get_user_dialog_photo(c->user_id);
-}
-
-int32 UserManager::get_user_accent_color_id_object(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr || !u->accent_color_id.is_valid()) {
-    return td_->theme_manager_->get_accent_color_id_object(AccentColorId(user_id));
-  }
-
-  return td_->theme_manager_->get_accent_color_id_object(u->accent_color_id, AccentColorId(user_id));
-}
-
-int32 UserManager::get_secret_chat_accent_color_id_object(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return 5;
-  }
-  return get_user_accent_color_id_object(c->user_id);
-}
-
-CustomEmojiId UserManager::get_user_background_custom_emoji_id(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return CustomEmojiId();
-  }
-
-  return u->background_custom_emoji_id;
-}
-
-CustomEmojiId UserManager::get_secret_chat_background_custom_emoji_id(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return CustomEmojiId();
-  }
-  return get_user_background_custom_emoji_id(c->user_id);
-}
-
-int32 UserManager::get_user_profile_accent_color_id_object(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return -1;
-  }
-
-  return td_->theme_manager_->get_profile_accent_color_id_object(u->profile_accent_color_id);
-}
-
-int32 UserManager::get_secret_chat_profile_accent_color_id_object(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return -1;
-  }
-  return get_user_profile_accent_color_id_object(c->user_id);
-}
-
-CustomEmojiId UserManager::get_user_profile_background_custom_emoji_id(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return CustomEmojiId();
-  }
-
-  return u->profile_background_custom_emoji_id;
-}
-
-CustomEmojiId UserManager::get_secret_chat_profile_background_custom_emoji_id(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return CustomEmojiId();
-  }
-  return get_user_profile_background_custom_emoji_id(c->user_id);
-}
-
-string UserManager::get_user_title(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return string();
-  }
-  if (u->last_name.empty()) {
-    return u->first_name;
-  }
-  if (u->first_name.empty()) {
-    return u->last_name;
-  }
-  return PSTRING() << u->first_name << ' ' << u->last_name;
-}
-
-string UserManager::get_secret_chat_title(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return string();
-  }
-  return get_user_title(c->user_id);
-}
-
-RestrictedRights UserManager::get_user_default_permissions(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr || user_id == get_replies_bot_user_id() || user_id == get_verification_codes_bot_user_id()) {
-    return RestrictedRights(false, false, false, false, false, false, false, false, false, false, false, false, false,
-                            false, false, u != nullptr, false, ChannelType::Unknown);
-  }
-  return RestrictedRights(true, true, true, true, true, true, true, true, true, true, true, true, true, false, false,
-                          true, false, ChannelType::Unknown);
-}
-
-RestrictedRights UserManager::get_secret_chat_default_permissions(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return RestrictedRights(false, false, false, false, false, false, false, false, false, false, false, false, false,
-                            false, false, false, false, ChannelType::Unknown);
-  }
-  return RestrictedRights(true, true, true, true, true, true, true, true, true, true, true, true, true, false, false,
-                          false, false, ChannelType::Unknown);
-}
-
-td_api::object_ptr<td_api::emojiStatus> UserManager::get_user_emoji_status_object(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr || u->last_sent_emoji_status == nullptr) {
-    return nullptr;
-  }
-  return u->last_sent_emoji_status->get_emoji_status_object();
-}
-
-td_api::object_ptr<td_api::emojiStatus> UserManager::get_secret_chat_emoji_status_object(
-    SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return nullptr;
-  }
-  return get_user_emoji_status_object(c->user_id);
-}
-
-bool UserManager::get_user_stories_hidden(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return false;
-  }
-  return u->stories_hidden;
-}
-
-bool UserManager::can_poll_user_active_stories(UserId user_id) const {
-  const User *u = get_user(user_id);
-  return need_poll_user_active_stories(u, user_id) && Time::now() >= u->max_active_story_id_next_reload_time;
-}
-
-bool UserManager::need_poll_user_active_stories(const User *u, UserId user_id) const {
-  return u != nullptr && user_id != get_my_id() && !is_user_contact(u, user_id, false) && !is_user_bot(u) &&
-         !is_user_support(u) && !is_user_deleted(u) && u->was_online != 0;
-}
-
-string UserManager::get_user_about(UserId user_id) {
-  auto user_full = get_user_full_force(user_id, "get_user_about");
-  if (user_full != nullptr) {
-    return user_full->about;
-  }
-  return string();
-}
-
-string UserManager::get_secret_chat_about(SecretChatId secret_chat_id) {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return string();
-  }
-  return get_user_about(c->user_id);
-}
-
-string UserManager::get_user_private_forward_name(UserId user_id) {
-  auto user_full = get_user_full_force(user_id, "get_user_private_forward_name");
-  if (user_full != nullptr) {
-    return user_full->private_forward_name;
-  }
-  return string();
-}
-
-bool UserManager::get_user_voice_messages_forbidden(UserId user_id) const {
-  if (!is_user_premium(user_id)) {
-    return false;
-  }
-  auto user_full = get_user_full(user_id);
-  if (user_full != nullptr) {
-    return user_full->voice_messages_forbidden;
-  }
-  return false;
-}
-
-bool UserManager::get_my_sponsored_enabled() const {
-  auto user_id = get_my_id();
-  if (!is_user_premium(user_id)) {
-    return true;
-  }
-  auto user_full = get_user_full(user_id);
-  if (user_full != nullptr) {
-    return user_full->sponsored_enabled;
-  }
-  return true;
-}
-
-bool UserManager::get_user_read_dates_private(UserId user_id) {
-  auto user_full = get_user_full_force(user_id, "get_user_read_dates_private");
-  if (user_full != nullptr) {
-    return user_full->read_dates_private;
-  }
-  return false;
-}
-
-string UserManager::get_user_search_text(UserId user_id) const {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return string();
-  }
-  return get_user_search_text(u);
-}
-
-string UserManager::get_user_search_text(const User *u) {
-  CHECK(u != nullptr);
-  return PSTRING() << u->first_name << ' ' << u->last_name << ' ' << implode(u->usernames.get_active_usernames());
-}
-
-void UserManager::for_each_secret_chat_with_user(UserId user_id, const std::function<void(SecretChatId)> &f) {
-  auto it = secret_chats_with_user_.find(user_id);
-  if (it != secret_chats_with_user_.end()) {
-    for (auto secret_chat_id : it->second) {
-      f(secret_chat_id);
-    }
-  }
-}
-
-string UserManager::get_user_first_username(UserId user_id) const {
-  if (!user_id.is_valid()) {
-    return string();
-  }
-
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return string();
-  }
-  return u->usernames.get_first_username();
-}
-
-int32 UserManager::get_secret_chat_date(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return 0;
-  }
-  return c->date;
-}
-
-int32 UserManager::get_secret_chat_ttl(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return 0;
-  }
-  return c->ttl;
-}
-
-UserId UserManager::get_secret_chat_user_id(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return UserId();
-  }
-  return c->user_id;
-}
-
-bool UserManager::get_secret_chat_is_outbound(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return false;
-  }
-  return c->is_outbound;
-}
-
-SecretChatState UserManager::get_secret_chat_state(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return SecretChatState::Unknown;
-  }
-  return c->state;
-}
-
-int32 UserManager::get_secret_chat_layer(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return 0;
-  }
-  return c->layer;
-}
-
-FolderId UserManager::get_secret_chat_initial_folder_id(SecretChatId secret_chat_id) const {
-  auto c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    return FolderId::main();
-  }
-  return c->initial_folder_id;
-}
-
-vector<BotCommands> UserManager::get_bot_commands(vector<telegram_api::object_ptr<telegram_api::botInfo>> &&bot_infos,
-                                                  const vector<DialogParticipant> *participants) {
-  vector<BotCommands> result;
-  if (td_->auth_manager_->is_bot()) {
-    return result;
-  }
-  for (auto &bot_info : bot_infos) {
-    if (bot_info->commands_.empty()) {
-      continue;
-    }
-
-    auto user_id = UserId(bot_info->user_id_);
-    const User *u = get_user_force(user_id, "get_bot_commands");
-    if (u == nullptr) {
-      LOG(ERROR) << "Receive unknown " << user_id;
-      continue;
-    }
-    if (!is_user_bot(u)) {
-      if (!is_user_deleted(u)) {
-        LOG(ERROR) << "Receive non-bot " << user_id;
-      }
-      continue;
-    }
-    if (participants != nullptr) {
-      bool is_participant = false;
-      for (auto &participant : *participants) {
-        if (participant.dialog_id_ == DialogId(user_id)) {
-          is_participant = true;
-          break;
-        }
-      }
-      if (!is_participant) {
-        LOG(ERROR) << "Skip commands of non-member bot " << user_id;
-        continue;
-      }
-    }
-    result.emplace_back(user_id, std::move(bot_info->commands_));
-  }
-  return result;
-}
-
-void UserManager::set_name(const string &first_name, const string &last_name, Promise<Unit> &&promise) {
-  auto new_first_name = clean_name(first_name, MAX_NAME_LENGTH);
-  auto new_last_name = clean_name(last_name, MAX_NAME_LENGTH);
-  if (new_first_name.empty()) {
-    return promise.set_error(Status::Error(400, "First name must be non-empty"));
-  }
-
-  const User *u = get_user(get_my_id());
-  int32 flags = 0;
-  // TODO we can already send request for changing first_name and last_name and wanting to set initial values
-  // TODO need to be rewritten using invoke after and cancelling previous request
-  if (u == nullptr || u->first_name != new_first_name) {
-    flags |= ACCOUNT_UPDATE_FIRST_NAME;
-  }
-  if (u == nullptr || u->last_name != new_last_name) {
-    flags |= ACCOUNT_UPDATE_LAST_NAME;
-  }
-  if (flags == 0) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<UpdateProfileQuery>(std::move(promise))->send(flags, new_first_name, new_last_name, "");
-}
-
-void UserManager::set_bio(const string &bio, Promise<Unit> &&promise) {
-  auto max_bio_length = static_cast<size_t>(td_->option_manager_->get_option_integer("bio_length_max"));
-  auto new_bio = strip_empty_characters(bio, max_bio_length);
-  for (auto &c : new_bio) {
-    if (c == '\n') {
-      c = ' ';
-    }
-  }
-
-  const UserFull *user_full = get_user_full(get_my_id());
-  int32 flags = 0;
-  // TODO we can already send request for changing bio and wanting to set initial values
-  // TODO need to be rewritten using invoke after and cancelling previous request
-  if (user_full == nullptr || user_full->about != new_bio) {
-    flags |= ACCOUNT_UPDATE_ABOUT;
-  }
-  if (flags == 0) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<UpdateProfileQuery>(std::move(promise))->send(flags, "", "", new_bio);
-}
-
-void UserManager::on_update_profile_success(int32 flags, const string &first_name, const string &last_name,
-                                            const string &about) {
-  CHECK(flags != 0);
-
-  auto my_user_id = get_my_id();
-  const User *u = get_user(my_user_id);
-  if (u == nullptr) {
-    LOG(ERROR) << "Doesn't receive info about me during update profile";
-    return;
-  }
-  LOG_IF(ERROR, (flags & ACCOUNT_UPDATE_FIRST_NAME) != 0 && u->first_name != first_name)
-      << "Wrong first name \"" << u->first_name << "\", expected \"" << first_name << '"';
-  LOG_IF(ERROR, (flags & ACCOUNT_UPDATE_LAST_NAME) != 0 && u->last_name != last_name)
-      << "Wrong last name \"" << u->last_name << "\", expected \"" << last_name << '"';
-
-  if ((flags & ACCOUNT_UPDATE_ABOUT) != 0) {
-    UserFull *user_full = get_user_full_force(my_user_id, "on_update_profile_success");
-    if (user_full != nullptr) {
-      user_full->about = about;
-      user_full->is_changed = true;
-      update_user_full(user_full, my_user_id, "on_update_profile_success");
-      td_->group_call_manager_->on_update_dialog_about(DialogId(my_user_id), user_full->about, true);
-    }
-  }
-}
-
-FileId UserManager::get_profile_photo_file_id(int64 photo_id) const {
-  auto it = my_photo_file_id_.find(photo_id);
-  if (it == my_photo_file_id_.end()) {
-    return FileId();
-  }
-  return it->second;
-}
-
-void UserManager::set_bot_profile_photo(UserId bot_user_id,
-                                        const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                                        Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    if (bot_user_id != UserId() && bot_user_id != get_my_id()) {
-      return promise.set_error(Status::Error(400, "Invalid bot user identifier specified"));
-    }
-    bot_user_id = get_my_id();
-  } else {
-    TRY_RESULT_PROMISE(promise, bot_data, get_bot_data(bot_user_id));
-    if (!bot_data.can_be_edited) {
-      return promise.set_error(Status::Error(400, "The bot can't be edited"));
-    }
-  }
-  if (input_photo == nullptr) {
-    td_->create_handler<UpdateProfilePhotoQuery>(std::move(promise))
-        ->send(bot_user_id, FileId(), 0, false, telegram_api::make_object<telegram_api::inputPhotoEmpty>());
-    return;
-  }
-  set_profile_photo_impl(bot_user_id, input_photo, false, false, std::move(promise));
-}
-
-void UserManager::set_business_profile_photo(BusinessConnectionId business_connection_id,
-                                             const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                                             bool is_fallback, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->business_connection_manager_->check_business_connection(business_connection_id));
-  if (input_photo == nullptr) {
-    td_->create_handler<DeleteBusinessProfilePhotoQuery>(std::move(promise))->send(business_connection_id, is_fallback);
-    return;
-  }
-  if (input_photo->get_id() == td_api::inputChatPhotoPrevious::ID) {
-    return promise.set_error(Status::Error(400, "Unsupported"));
-  }
-  auto user_id = td_->business_connection_manager_->get_business_connection_user_id(business_connection_id);
-  set_profile_photo_impl(user_id, input_photo, is_fallback, false, std::move(promise));
-}
-
-void UserManager::set_profile_photo(const td_api::object_ptr<td_api::InputChatPhoto> &input_photo, bool is_fallback,
-                                    Promise<Unit> &&promise) {
-  dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::UserpicSetup}, Promise<Unit>());
-  set_profile_photo_impl(get_my_id(), input_photo, is_fallback, false, std::move(promise));
-}
-
-void UserManager::set_profile_photo_impl(UserId user_id, const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                                         bool is_fallback, bool only_suggest, Promise<Unit> &&promise) {
-  if (input_photo == nullptr) {
-    return promise.set_error(Status::Error(400, "New profile photo must be non-empty"));
-  }
-
-  const td_api::object_ptr<td_api::InputFile> *input_file = nullptr;
-  double main_frame_timestamp = 0.0;
-  bool is_animation = false;
-  switch (input_photo->get_id()) {
-    case td_api::inputChatPhotoPrevious::ID: {
-      if (user_id != get_my_id() || td_->auth_manager_->is_bot()) {
-        return promise.set_error(Status::Error(400, "Can't use inputChatPhotoPrevious"));
-      }
-      auto photo = static_cast<const td_api::inputChatPhotoPrevious *>(input_photo.get());
-      auto photo_id = photo->chat_photo_id_;
-      auto *u = get_user(user_id);
-      if (u != nullptr && u->photo.id > 0 && photo_id == u->photo.id) {
-        // it is possible that u->photo.is_fallback != is_fallback, so we need to set the photo anyway
-        // return promise.set_value(Unit());
-      }
-
-      auto file_id = get_profile_photo_file_id(photo_id);
-      if (!file_id.is_valid()) {
-        return promise.set_error(Status::Error(400, "Unknown profile photo ID specified"));
-      }
-      return send_update_profile_photo_query(user_id, file_id, photo_id, is_fallback, std::move(promise));
-    }
-    case td_api::inputChatPhotoStatic::ID: {
-      auto photo = static_cast<const td_api::inputChatPhotoStatic *>(input_photo.get());
-      input_file = &photo->photo_;
-      break;
-    }
-    case td_api::inputChatPhotoAnimation::ID: {
-      auto photo = static_cast<const td_api::inputChatPhotoAnimation *>(input_photo.get());
-      input_file = &photo->animation_;
-      main_frame_timestamp = photo->main_frame_timestamp_;
-      is_animation = true;
-      break;
-    }
-    case td_api::inputChatPhotoSticker::ID: {
-      auto photo = static_cast<const td_api::inputChatPhotoSticker *>(input_photo.get());
-      TRY_RESULT_PROMISE(promise, sticker_photo_size, StickerPhotoSize::get_sticker_photo_size(td_, photo->sticker_));
-
-      td_->create_handler<UploadProfilePhotoQuery>(std::move(promise))
-          ->send(user_id, std::move(sticker_photo_size), is_fallback, only_suggest);
-      return;
-    }
-    default:
-      UNREACHABLE();
-      break;
-  }
-
-  const double MAX_ANIMATION_DURATION = 10.0;
-  if (main_frame_timestamp < 0.0 || main_frame_timestamp > MAX_ANIMATION_DURATION) {
-    return promise.set_error(Status::Error(400, "Wrong main frame timestamp specified"));
-  }
-
-  auto file_type = is_animation ? FileType::Animation : FileType::Photo;
-  TRY_RESULT_PROMISE(promise, file_id,
-                     td_->file_manager_->get_input_file_id(file_type, *input_file, DialogId(user_id), false, false));
-
-  upload_profile_photo(user_id, {file_id, FileManager::get_internal_upload_id()}, is_fallback, only_suggest,
-                       is_animation, main_frame_timestamp, std::move(promise));
-}
-
-void UserManager::set_user_profile_photo(UserId user_id, const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                                         bool only_suggest, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-  if (!only_suggest && !is_user_contact(user_id)) {
-    return promise.set_error(Status::Error(400, "User isn't a contact"));
-  }
-  if (user_id == get_my_id()) {
-    return promise.set_error(Status::Error(400, "Can't set personal or suggest photo to self"));
-  }
-  if (is_user_bot(user_id)) {
-    return promise.set_error(Status::Error(400, "Can't set personal or suggest photo to bots"));
-  }
-  if (input_photo == nullptr) {
-    td_->create_handler<DeleteContactProfilePhotoQuery>(std::move(promise))->send(user_id, std::move(input_user));
-    return;
-  }
-
-  set_profile_photo_impl(user_id, input_photo, false, only_suggest, std::move(promise));
-}
-
-void UserManager::send_update_profile_photo_query(UserId user_id, FileId file_id, int64 old_photo_id, bool is_fallback,
-                                                  Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  FileView file_view = td_->file_manager_->get_file_view(file_id);
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location == nullptr) {
-    return promise.set_error(Status::Error(500, "Failed to upload the file"));
-  }
-  td_->create_handler<UpdateProfilePhotoQuery>(std::move(promise))
-      ->send(user_id, file_id, old_photo_id, is_fallback, main_remote_location->as_input_photo());
-}
-
-void UserManager::upload_profile_photo(UserId user_id, FileUploadId file_upload_id, bool is_fallback, bool only_suggest,
-                                       bool is_animation, double main_frame_timestamp, Promise<Unit> &&promise,
-                                       int reupload_count, vector<int> bad_parts) {
-  CHECK(file_upload_id.is_valid());
-  bool is_inserted =
-      being_uploaded_profile_photos_
-          .emplace(file_upload_id, UploadedProfilePhoto{user_id, is_fallback, only_suggest, main_frame_timestamp,
-                                                        is_animation, reupload_count, std::move(promise)})
-          .second;
-  CHECK(is_inserted);
-  LOG(INFO) << "Ask to upload " << (is_animation ? "animated" : "static") << " profile photo " << file_upload_id
-            << " for user " << user_id << " with bad parts " << bad_parts;
-  // TODO use force_reupload if reupload_count >= 1, replace reupload_count with is_reupload
-  td_->file_manager_->resume_upload(file_upload_id, std::move(bad_parts), upload_profile_photo_callback_, 32, 0);
-}
-
-void UserManager::on_upload_profile_photo(FileUploadId file_upload_id,
-                                          telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-  auto it = being_uploaded_profile_photos_.find(file_upload_id);
-  CHECK(it != being_uploaded_profile_photos_.end());
-  UserId user_id = it->second.user_id;
-  bool is_fallback = it->second.is_fallback;
-  bool only_suggest = it->second.only_suggest;
-  double main_frame_timestamp = it->second.main_frame_timestamp;
-  bool is_animation = it->second.is_animation;
-  int32 reupload_count = it->second.reupload_count;
-  auto promise = std::move(it->second.promise);
-  being_uploaded_profile_photos_.erase(it);
-
-  LOG(INFO) << "Uploaded " << (is_animation ? "animated" : "static") << " profile photo " << file_upload_id << " for "
-            << user_id << " with reupload_count = " << reupload_count;
-  FileView file_view = td_->file_manager_->get_file_view(file_upload_id.get_file_id());
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && input_file == nullptr) {
-    if (main_remote_location->is_web()) {
-      return promise.set_error(Status::Error(400, "Can't use web photo as profile photo"));
-    }
-    if (reupload_count == 3) {  // upload, ForceReupload repair file reference, reupload
-      return promise.set_error(Status::Error(400, "Failed to reupload the file"));
-    }
-
-    // delete file reference and forcely reupload the file
-    if (is_animation) {
-      CHECK(file_view.get_type() == FileType::Animation);
-      LOG_CHECK(main_remote_location->is_common()) << *main_remote_location;
-    } else {
-      CHECK(file_view.get_type() == FileType::Photo);
-      LOG_CHECK(main_remote_location->is_photo()) << *main_remote_location;
-    }
-    auto file_reference = is_animation ? FileManager::extract_file_reference(main_remote_location->as_input_document())
-                                       : FileManager::extract_file_reference(main_remote_location->as_input_photo());
-    td_->file_manager_->delete_file_reference(file_upload_id.get_file_id(), file_reference);
-    upload_profile_photo(user_id, file_upload_id, is_fallback, only_suggest, is_animation, main_frame_timestamp,
-                         std::move(promise), reupload_count + 1, {-1});
-    return;
-  }
-  CHECK(input_file != nullptr);
-
-  td_->create_handler<UploadProfilePhotoQuery>(std::move(promise))
-      ->send(user_id, file_upload_id, std::move(input_file), is_fallback, only_suggest, is_animation,
-             main_frame_timestamp);
-}
-
-void UserManager::on_upload_profile_photo_error(FileUploadId file_upload_id, Status status) {
-  LOG(INFO) << "Profile photo " << file_upload_id << " has upload error " << status;
-  CHECK(status.is_error());
-
-  auto it = being_uploaded_profile_photos_.find(file_upload_id);
-  CHECK(it != being_uploaded_profile_photos_.end());
-  auto promise = std::move(it->second.promise);
-  being_uploaded_profile_photos_.erase(it);
-
-  promise.set_error(std::move(status));  // TODO check that status has valid error code
-}
-
-void UserManager::on_set_profile_photo(UserId user_id, telegram_api::object_ptr<telegram_api::photos_photo> &&photo,
-                                       bool is_fallback, int64 old_photo_id, Promise<Unit> &&promise) {
-  LOG(INFO) << "Changed profile photo to " << to_string(photo);
-
-  bool is_bot = is_user_bot(user_id);
-  bool is_my = (user_id == get_my_id());
-  if (is_my && !is_fallback) {
-    delete_my_profile_photo_from_cache(old_photo_id);
-  }
-  bool have_user = false;
-  for (const auto &user : photo->users_) {
-    if (get_user_id(user) == user_id) {
-      have_user = true;
-    }
-  }
-  on_get_users(std::move(photo->users_), "on_set_profile_photo");
-  if (!is_bot) {
-    add_set_profile_photo_to_cache(user_id, get_photo(td_, std::move(photo->photo_), DialogId(user_id)), is_fallback);
-  }
-  if (have_user) {
-    promise.set_value(Unit());
-  } else {
-    reload_user(user_id, std::move(promise), "on_set_profile_photo");
-  }
-}
-
-void UserManager::add_set_profile_photo_to_cache(UserId user_id, Photo &&photo, bool is_fallback) {
-  // we have subsequence of user photos in user_photos_
-  // ProfilePhoto in User and Photo in UserFull
-
-  User *u = get_user_force(user_id, "add_set_profile_photo_to_cache");
-  if (u == nullptr) {
-    return;
-  }
-
-  LOG(INFO) << "Add profile photo " << photo.id.get() << " to cache";
-
-  bool is_me = user_id == get_my_id();
-
-  // update photo list
-  auto user_photos = user_photos_.get_pointer(user_id);
-  if (is_me && !is_fallback && user_photos != nullptr && user_photos->count != -1 && !photo.is_empty()) {
-    if (user_photos->offset == 0) {
-      if (user_photos->photos.empty() || user_photos->photos[0].id.get() != photo.id.get()) {
-        user_photos->photos.insert(user_photos->photos.begin(), photo);
-        user_photos->count++;
-        register_user_photo(u, user_id, user_photos->photos[0]);
-      }
-    } else {
-      user_photos->count++;
-      user_photos->offset++;
-    }
-  }
-
-  // update ProfilePhoto in User
-  if ((!is_fallback || u->photo.id == 0) && !photo.is_empty()) {
-    do_update_user_photo(u, user_id, as_profile_photo(td_->file_manager_.get(), user_id, u->access_hash, photo, !is_me),
-                         false, "add_set_profile_photo_to_cache");
-    update_user(u, user_id);
-  }
-
-  // update Photo in UserFull
-  auto user_full = get_user_full_force(user_id, "add_set_profile_photo_to_cache");
-  if (user_full != nullptr) {
-    Photo *current_photo = nullptr;
-    // don't update the changed photo if other photos aren't known to avoid having only some photos known
-    bool need_apply = get_user_full_profile_photo_id(user_full) > 0;
-    if (!is_me) {
-      current_photo = &user_full->personal_photo;
-      if (photo.is_empty()) {
-        // always can apply empty personal photo
-        need_apply = true;
-      }
-    } else if (!is_fallback) {
-      current_photo = &user_full->photo;
-      if (photo.is_empty()) {
-        // never can apply empty photo
-        need_apply = false;
-      }
-    } else {
-      current_photo = &user_full->fallback_photo;
-      if (photo.is_empty()) {
-        // always can apply empty fallback photo
-        need_apply = true;
-      }
-    }
-    if (*current_photo != photo && need_apply) {
-      LOG(INFO) << "Update full photo of " << user_id << " to " << photo;
-      *current_photo = photo;
-      user_full->is_changed = true;
-      if (is_me && !photo.is_empty()) {
-        if (!is_fallback) {
-          register_user_photo(u, user_id, photo);
-        } else {
-          register_suggested_profile_photo(photo);
-        }
-      }
-      drop_user_full_photos(user_full, user_id, u->photo.id, "add_set_profile_photo_to_cache");  // just in case
-    }
-    if (user_full->expires_at > 0.0) {
-      user_full->expires_at = 0.0;
-      user_full->need_save_to_database = true;
-    }
-    update_user_full(user_full, user_id, "add_set_profile_photo_to_cache");
-    reload_user_full(user_id, Auto(), "add_set_profile_photo_to_cache");
-  }
-}
-
-bool UserManager::delete_my_profile_photo_from_cache(int64 profile_photo_id) {
-  if (profile_photo_id == 0 || profile_photo_id == -2) {
-    return false;
-  }
-
-  // we have subsequence of user photos in user_photos_
-  // ProfilePhoto in User and Photo in UserFull
-
-  LOG(INFO) << "Delete profile photo " << profile_photo_id << " from cache";
-
-  auto user_id = get_my_id();
-  User *u = get_user_force(user_id, "delete_my_profile_photo_from_cache");
-  bool is_main_photo_deleted = u != nullptr && u->photo.id == profile_photo_id;
-
-  // update photo list
-  auto user_photos = user_photos_.get_pointer(user_id);
-  if (user_photos != nullptr && user_photos->count > 0) {
-    auto old_size = user_photos->photos.size();
-    if (td::remove_if(user_photos->photos,
-                      [profile_photo_id](const auto &photo) { return photo.id.get() == profile_photo_id; })) {
-      auto removed_photos = old_size - user_photos->photos.size();
-      CHECK(removed_photos > 0);
-      LOG_IF(ERROR, removed_photos != 1) << "Had " << removed_photos << " photos with ID " << profile_photo_id;
-      user_photos->count -= narrow_cast<int32>(removed_photos);
-      // offset was not changed
-      CHECK(user_photos->count >= 0);
-    } else {
-      // failed to find photo to remove from cache
-      // don't know how to adjust user_photos->offset, so drop photos cache
-      LOG(INFO) << "Drop photos of " << user_id;
-      user_photos->photos.clear();
-      user_photos->count = -1;
-      user_photos->offset = -1;
-    }
-  }
-  bool have_new_photo =
-      user_photos != nullptr && user_photos->count != -1 && user_photos->offset == 0 && !user_photos->photos.empty();
-
-  auto user_full = get_user_full_force(user_id, "delete_my_profile_photo_from_cache");
-
-  // update ProfilePhoto in User
-  bool need_reget_user = false;
-  if (is_main_photo_deleted) {
-    if (have_new_photo) {
-      do_update_user_photo(
-          u, user_id,
-          as_profile_photo(td_->file_manager_.get(), user_id, u->access_hash, user_photos->photos[0], false), false,
-          "delete_my_profile_photo_from_cache");
-    } else {
-      do_update_user_photo(u, user_id, ProfilePhoto(), false, "delete_my_profile_photo_from_cache 2");
-      need_reget_user = user_photos == nullptr || user_photos->count != 0;
-    }
-    update_user(u, user_id);
-
-    // update Photo in UserFull
-    if (user_full != nullptr) {
-      if (user_full->fallback_photo.id.get() == profile_photo_id) {
-        LOG(INFO) << "Drop full public photo of " << user_id;
-        user_full->photo = Photo();
-        user_full->is_changed = true;
-      } else if (have_new_photo) {
-        if (user_full->photo.id.get() == profile_photo_id && user_photos->photos[0] != user_full->photo) {
-          LOG(INFO) << "Update full photo of " << user_id << " to " << user_photos->photos[0];
-          user_full->photo = user_photos->photos[0];
-          user_full->is_changed = true;
-        }
-      } else {
-        // repair UserFull photo
-        if (!user_full->photo.is_empty()) {
-          user_full->photo = Photo();
-          user_full->is_changed = true;
-        }
-        if (!user_full->fallback_photo.is_empty()) {
-          user_full->fallback_photo = Photo();
-          user_full->is_changed = true;
-        }
-      }
-      if (user_full->expires_at > 0.0) {
-        user_full->expires_at = 0.0;
-        user_full->need_save_to_database = true;
-      }
-      reload_user_full(user_id, Auto(), "delete_my_profile_photo_from_cache");
-      update_user_full(user_full, user_id, "delete_my_profile_photo_from_cache");
-    }
-  }
-
-  return need_reget_user;
-}
-
-void UserManager::delete_profile_photo(int64 profile_photo_id, bool is_recursive, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  const UserFull *user_full = get_user_full_force(get_my_id(), "delete_profile_photo");
-  if (user_full == nullptr) {
-    // must load UserFull first, because fallback photo can't be deleted via DeleteProfilePhotoQuery
-    if (is_recursive) {
-      return promise.set_error(Status::Error(500, "Failed to load UserFullInfo"));
-    }
-    auto reload_promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), profile_photo_id, promise = std::move(promise)](Result<Unit> result) mutable {
-          if (result.is_error()) {
-            return promise.set_error(result.move_as_error());
-          }
-          send_closure(actor_id, &UserManager::delete_profile_photo, profile_photo_id, true, std::move(promise));
-        });
-    reload_user_full(get_my_id(), std::move(reload_promise), "delete_profile_photo");
-    return;
-  }
-  if (user_full->photo.id.get() == profile_photo_id || user_full->fallback_photo.id.get() == profile_photo_id) {
-    td_->create_handler<UpdateProfilePhotoQuery>(std::move(promise))
-        ->send(get_my_id(), FileId(), profile_photo_id, user_full->fallback_photo.id.get() == profile_photo_id,
-               telegram_api::make_object<telegram_api::inputPhotoEmpty>());
-    return;
-  }
-
-  td_->create_handler<DeleteProfilePhotoQuery>(std::move(promise))->send(profile_photo_id);
-}
-
-void UserManager::on_delete_profile_photo(int64 profile_photo_id, Promise<Unit> promise) {
-  bool need_reget_user = delete_my_profile_photo_from_cache(profile_photo_id);
-  if (need_reget_user && !G()->close_flag()) {
-    return reload_user(get_my_id(), std::move(promise), "on_delete_profile_photo");
-  }
-
-  promise.set_value(Unit());
-}
-
-void UserManager::toggle_user_can_manage_emoji_status(UserId user_id, bool can_manage_emoji_status,
-                                                      Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-  if (!is_user_bot(user_id)) {
-    return promise.set_error(Status::Error(400, "The user must be a bot"));
-  }
-  td_->create_handler<ToggleUserEmojiStatusPermissionQuery>(std::move(promise))
-      ->send(user_id, std::move(input_user), can_manage_emoji_status);
-}
-
-void UserManager::set_user_emoji_status(UserId user_id, const unique_ptr<EmojiStatus> &emoji_status,
-                                        Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-  td_->create_handler<UpdateUserEmojiStatusQuery>(std::move(promise))
-      ->send(user_id, std::move(input_user), emoji_status);
-}
-
-void UserManager::on_set_user_emoji_status(UserId user_id, unique_ptr<EmojiStatus> emoji_status,
-                                           Promise<Unit> &&promise) {
-  User *u = get_user(user_id);
-  if (u != nullptr) {
-    on_update_user_emoji_status(u, user_id, std::move(emoji_status));
-    update_user(u, user_id);
-  }
-  promise.set_value(Unit());
-}
-
-void UserManager::set_username(const string &username, Promise<Unit> &&promise) {
-  if (!username.empty() && !is_allowed_username(username)) {
-    return promise.set_error(Status::Error(400, "Username is invalid"));
-  }
-  td_->create_handler<UpdateUsernameQuery>(std::move(promise))->send(username);
-}
-
-void UserManager::toggle_username_is_active(string &&username, bool is_active, Promise<Unit> &&promise) {
-  get_me(PromiseCreator::lambda([actor_id = actor_id(this), username = std::move(username), is_active,
-                                 promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      send_closure(actor_id, &UserManager::toggle_username_is_active_impl, std::move(username), is_active,
-                   std::move(promise));
-    }
-  }));
-}
-
-void UserManager::toggle_username_is_active_impl(string &&username, bool is_active, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  const User *u = get_user(get_my_id());
-  CHECK(u != nullptr);
-  if (!u->usernames.can_toggle(username)) {
-    return promise.set_error(Status::Error(400, "Wrong username specified"));
-  }
-  td_->create_handler<ToggleUsernameQuery>(std::move(promise))->send(std::move(username), is_active);
-}
-
-void UserManager::reorder_usernames(vector<string> &&usernames, Promise<Unit> &&promise) {
-  get_me(PromiseCreator::lambda([actor_id = actor_id(this), usernames = std::move(usernames),
-                                 promise = std::move(promise)](Result<Unit> &&result) mutable {
-    if (result.is_error()) {
-      promise.set_error(result.move_as_error());
-    } else {
-      send_closure(actor_id, &UserManager::reorder_usernames_impl, std::move(usernames), std::move(promise));
-    }
-  }));
-}
-
-void UserManager::reorder_usernames_impl(vector<string> &&usernames, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  const User *u = get_user(get_my_id());
-  CHECK(u != nullptr);
-  if (!u->usernames.can_reorder_to(usernames)) {
-    return promise.set_error(Status::Error(400, "Invalid username order specified"));
-  }
-  if (usernames.size() <= 1) {
-    return promise.set_value(Unit());
-  }
-  td_->create_handler<ReorderUsernamesQuery>(std::move(promise))->send(std::move(usernames));
-}
-
-void UserManager::on_update_username_is_active(UserId user_id, string &&username, bool is_active,
-                                               Promise<Unit> &&promise) {
-  User *u = get_user(user_id);
-  CHECK(u != nullptr);
-  if (!u->usernames.can_toggle(username)) {
-    return reload_user(user_id, std::move(promise), "on_update_username_is_active");
-  }
-  on_update_user_usernames(u, user_id, u->usernames.toggle(username, is_active));
-  update_user(u, user_id);
-  promise.set_value(Unit());
-}
-
-void UserManager::on_update_active_usernames_order(UserId user_id, vector<string> &&usernames,
-                                                   Promise<Unit> &&promise) {
-  User *u = get_user(user_id);
-  CHECK(u != nullptr);
-  if (!u->usernames.can_reorder_to(usernames)) {
-    return reload_user(user_id, std::move(promise), "on_update_active_usernames_order");
-  }
-  on_update_user_usernames(u, user_id, u->usernames.reorder_to(std::move(usernames)));
-  update_user(u, user_id);
-  promise.set_value(Unit());
-}
-
-void UserManager::toggle_bot_username_is_active(UserId bot_user_id, string &&username, bool is_active,
-                                                Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, bot_data, get_bot_data(bot_user_id));
-  if (!bot_data.can_be_edited) {
-    return promise.set_error(Status::Error(400, "The bot can't be edited"));
-  }
-  const User *u = get_user(bot_user_id);
-  CHECK(u != nullptr);
-  if (!u->usernames.can_toggle(username)) {
-    return promise.set_error(Status::Error(400, "Wrong username specified"));
-  }
-  td_->create_handler<ToggleBotUsernameQuery>(std::move(promise))->send(bot_user_id, std::move(username), is_active);
-}
-
-void UserManager::reorder_bot_usernames(UserId bot_user_id, vector<string> &&usernames, Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, bot_data, get_bot_data(bot_user_id));
-  if (!bot_data.can_be_edited) {
-    return promise.set_error(Status::Error(400, "The bot can't be edited"));
-  }
-  const User *u = get_user(bot_user_id);
-  CHECK(u != nullptr);
-  if (!u->usernames.can_reorder_to(usernames)) {
-    return promise.set_error(Status::Error(400, "Invalid username order specified"));
-  }
-  if (usernames.size() <= 1) {
-    return promise.set_value(Unit());
-  }
-  td_->create_handler<ReorderBotUsernamesQuery>(std::move(promise))->send(bot_user_id, std::move(usernames));
-}
-
-void UserManager::set_accent_color(AccentColorId accent_color_id, CustomEmojiId background_custom_emoji_id,
-                                   Promise<Unit> &&promise) {
-  if (!accent_color_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid accent color identifier specified"));
-  }
-  if (accent_color_id == AccentColorId(get_my_id())) {
-    accent_color_id = AccentColorId();
-  }
-
-  td_->create_handler<UpdateColorQuery>(std::move(promise))->send(false, accent_color_id, background_custom_emoji_id);
-}
-
-void UserManager::set_profile_accent_color(AccentColorId accent_color_id, CustomEmojiId background_custom_emoji_id,
-                                           Promise<Unit> &&promise) {
-  td_->create_handler<UpdateColorQuery>(std::move(promise))->send(true, accent_color_id, background_custom_emoji_id);
-}
-
-void UserManager::on_update_accent_color_success(bool for_profile, AccentColorId accent_color_id,
-                                                 CustomEmojiId background_custom_emoji_id) {
-  auto user_id = get_my_id();
-  User *u = get_user_force(user_id, "on_update_accent_color_success");
-  if (u == nullptr) {
-    return;
-  }
-  if (for_profile) {
-    on_update_user_profile_accent_color_id(u, user_id, accent_color_id);
-    on_update_user_profile_background_custom_emoji_id(u, user_id, background_custom_emoji_id);
-  } else {
-    on_update_user_accent_color_id(u, user_id, accent_color_id);
-    on_update_user_background_custom_emoji_id(u, user_id, background_custom_emoji_id);
-  }
-  update_user(u, user_id);
-}
-
-void UserManager::set_birthdate(Birthdate &&birthdate, Promise<Unit> &&promise) {
-  dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::BirthdaySetup}, Promise<Unit>());
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), birthdate, promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_ok()) {
-          send_closure(actor_id, &UserManager::on_set_birthdate, birthdate, std::move(promise));
-        } else {
-          promise.set_error(result.move_as_error());
-        }
-      });
-  td_->create_handler<UpdateBirthdayQuery>(std::move(query_promise))->send(birthdate);
-}
-
-void UserManager::on_set_birthdate(Birthdate birthdate, Promise<Unit> &&promise) {
-  auto my_user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(my_user_id, "on_set_birthdate");
-  if (user_full != nullptr && user_full->birthdate != birthdate) {
-    user_full->birthdate = std::move(birthdate);
-    user_full->is_changed = true;
-    update_user_full(user_full, my_user_id, "on_set_birthdate");
-  }
-  promise.set_value(Unit());
-}
-
-void UserManager::set_personal_channel(DialogId dialog_id, Promise<Unit> &&promise) {
-  ChannelId channel_id;
-  if (dialog_id != DialogId()) {
-    if (!td_->dialog_manager_->have_dialog_force(dialog_id, "set_personal_channel")) {
-      return promise.set_error(Status::Error(400, "Chat not found"));
-    }
-    if (!td_->dialog_manager_->is_broadcast_channel(dialog_id)) {
-      return promise.set_error(Status::Error(400, "Chat can't be set as a personal chat"));
-    }
-    channel_id = dialog_id.get_channel_id();
-  }
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), channel_id, promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_ok()) {
-          send_closure(actor_id, &UserManager::on_set_personal_channel, channel_id, std::move(promise));
-        } else {
-          promise.set_error(result.move_as_error());
-        }
-      });
-  td_->create_handler<UpdatePersonalChannelQuery>(std::move(query_promise))->send(channel_id);
-}
-
-void UserManager::on_set_personal_channel(ChannelId channel_id, Promise<Unit> &&promise) {
-  auto my_user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(my_user_id, "on_set_personal_channel");
-  if (user_full != nullptr && user_full->personal_channel_id != channel_id) {
-    user_full->personal_channel_id = channel_id;
-    user_full->is_changed = true;
-    update_user_full(user_full, my_user_id, "on_set_personal_channel");
-  }
-  promise.set_value(Unit());
-}
-
-void UserManager::set_emoji_status(const unique_ptr<EmojiStatus> &emoji_status, Promise<Unit> &&promise) {
-  if (!td_->option_manager_->get_option_boolean("is_premium")) {
-    return promise.set_error(Status::Error(400, "The method is available only to Telegram Premium users"));
-  }
-  if (emoji_status != nullptr) {
-    add_recent_emoji_status(td_, *emoji_status);
-  }
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), emoji_status = EmojiStatus::clone_emoji_status(emoji_status),
-                              promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_ok()) {
-          send_closure(actor_id, &UserManager::on_set_emoji_status, std::move(emoji_status), std::move(promise));
-        } else {
-          promise.set_error(result.move_as_error());
-        }
-      });
-  td_->create_handler<UpdateEmojiStatusQuery>(std::move(query_promise))->send(emoji_status);
-}
-
-void UserManager::on_set_emoji_status(unique_ptr<EmojiStatus> emoji_status, Promise<Unit> &&promise) {
-  auto user_id = get_my_id();
-  User *u = get_user(user_id);
-  if (u != nullptr) {
-    on_update_user_emoji_status(u, user_id, std::move(emoji_status));
-    update_user(u, user_id);
-  }
-  promise.set_value(Unit());
-}
-
-void UserManager::toggle_sponsored_messages(bool sponsored_enabled, Promise<Unit> &&promise) {
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), sponsored_enabled, promise = std::move(promise)](Result<Unit> result) mutable {
-        if (result.is_ok()) {
-          send_closure(actor_id, &UserManager::on_toggle_sponsored_messages, sponsored_enabled, std::move(promise));
-        } else {
-          promise.set_error(result.move_as_error());
-        }
-      });
-  td_->create_handler<ToggleSponsoredMessagesQuery>(std::move(query_promise))->send(sponsored_enabled);
-}
-
-void UserManager::on_toggle_sponsored_messages(bool sponsored_enabled, Promise<Unit> &&promise) {
-  auto my_user_id = get_my_id();
-  UserFull *user_full = get_user_full_force(my_user_id, "on_toggle_sponsored_messages");
-  if (user_full != nullptr && user_full->sponsored_enabled != sponsored_enabled) {
-    user_full->sponsored_enabled = sponsored_enabled;
-    user_full->is_changed = true;
-    update_user_full(user_full, my_user_id, "on_toggle_sponsored_messages");
-  }
-  promise.set_value(Unit());
-}
-
-void UserManager::get_support_user(Promise<td_api::object_ptr<td_api::user>> &&promise) {
-  if (support_user_id_.is_valid()) {
-    return promise.set_value(get_user_object(support_user_id_));
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), promise = std::move(promise)](Result<UserId> &&result) mutable {
-        if (result.is_error()) {
-          promise.set_error(result.move_as_error());
-        } else {
-          send_closure(actor_id, &UserManager::on_get_support_user, result.move_as_ok(), std::move(promise));
-        }
-      });
-  td_->create_handler<GetSupportUserQuery>(std::move(query_promise))->send();
-}
-
-void UserManager::on_get_support_user(UserId user_id, Promise<td_api::object_ptr<td_api::user>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  const User *u = get_user(user_id);
-  if (u == nullptr) {
-    return promise.set_error(Status::Error(500, "Can't find support user"));
-  }
-  if (!u->is_support) {
-    LOG(ERROR) << "Receive non-support " << user_id << ", but expected a support user";
-  }
-
-  support_user_id_ = user_id;
-  promise.set_value(get_user_object(user_id, u));
-}
-
-void UserManager::get_user_profile_photos(UserId user_id, int32 offset, int32 limit,
-                                          Promise<td_api::object_ptr<td_api::chatPhotos>> &&promise) {
-  if (offset < 0) {
-    return promise.set_error(Status::Error(400, "Parameter offset must be non-negative"));
-  }
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
-  }
-  if (limit > MAX_GET_PROFILE_PHOTOS) {
-    limit = MAX_GET_PROFILE_PHOTOS;
-  }
-
-  TRY_STATUS_PROMISE(promise, get_input_user(user_id));
-
-  auto *u = get_user(user_id);
-  if (u == nullptr) {
-    return promise.set_error(Status::Error(400, "User not found"));
-  }
-
-  apply_pending_user_photo(u, user_id, "get_user_profile_photos");
-
-  auto user_photos = add_user_photos(user_id);
-  if (user_photos->count != -1) {  // know photo count
-    CHECK(user_photos->offset != -1);
-    LOG(INFO) << "Have " << user_photos->count << " cached user profile photos at offset " << user_photos->offset;
-    vector<td_api::object_ptr<td_api::chatPhoto>> photo_objects;
-
-    if (offset >= user_photos->count) {
-      // offset if too big
-      return promise.set_value(td_api::make_object<td_api::chatPhotos>(user_photos->count, std::move(photo_objects)));
-    }
-
-    if (limit > user_photos->count - offset) {
-      limit = user_photos->count - offset;
-    }
-
-    int32 cache_begin = user_photos->offset;
-    int32 cache_end = cache_begin + narrow_cast<int32>(user_photos->photos.size());
-    if (cache_begin <= offset && offset + limit <= cache_end) {
-      // answer query from cache
-      for (int i = 0; i < limit; i++) {
-        photo_objects.push_back(
-            get_chat_photo_object(td_->file_manager_.get(), user_photos->photos[i + offset - cache_begin]));
-      }
-      return promise.set_value(td_api::make_object<td_api::chatPhotos>(user_photos->count, std::move(photo_objects)));
-    }
-  }
-
-  PendingGetPhotoRequest pending_request;
-  pending_request.offset = offset;
-  pending_request.limit = limit;
-  pending_request.promise = std::move(promise);
-  user_photos->pending_requests.push_back(std::move(pending_request));
-  if (user_photos->pending_requests.size() != 1u) {
-    return;
-  }
-
-  send_get_user_photos_query(user_id, user_photos);
-}
-
-void UserManager::send_get_user_photos_query(UserId user_id, const UserPhotos *user_photos) {
-  CHECK(!user_photos->pending_requests.empty());
-  auto offset = user_photos->pending_requests[0].offset;
-  auto limit = user_photos->pending_requests[0].limit;
-
-  if (user_photos->count != -1 && offset >= user_photos->offset) {
-    int32 cache_end = user_photos->offset + narrow_cast<int32>(user_photos->photos.size());
-    if (offset < cache_end) {
-      // adjust offset to the end of cache
-      CHECK(offset + limit > cache_end);  // otherwise the request has already been answered
-      limit = offset + limit - cache_end;
-      offset = cache_end;
-    }
-  }
-
-  auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), user_id](Result<Unit> &&result) {
-    send_closure(actor_id, &UserManager::on_get_user_profile_photos, user_id, std::move(result));
-  });
-
-  td_->create_handler<GetUserPhotosQuery>(std::move(query_promise))
-      ->send(user_id, get_input_user_force(user_id), offset, max(limit, MAX_GET_PROFILE_PHOTOS / 5), 0);
-}
-
-void UserManager::on_get_user_profile_photos(UserId user_id, Result<Unit> &&result) {
-  G()->ignore_result_if_closing(result);
-  auto user_photos = add_user_photos(user_id);
-  auto pending_requests = std::move(user_photos->pending_requests);
-  CHECK(!pending_requests.empty());
-  if (result.is_error()) {
-    for (auto &request : pending_requests) {
-      request.promise.set_error(result.error().clone());
-    }
-    return;
-  }
-  if (user_photos->count == -1) {
-    CHECK(have_user(user_id));
-    // received result has just been dropped; resend request
-    if (++pending_requests[0].retry_count >= 3) {
-      pending_requests[0].promise.set_error(Status::Error(500, "Failed to return profile photos"));
-      pending_requests.erase(pending_requests.begin());
-      if (pending_requests.empty()) {
-        return;
-      }
-    }
-    user_photos->pending_requests = std::move(pending_requests);
-    return send_get_user_photos_query(user_id, user_photos);
-  }
-
-  CHECK(user_photos->offset != -1);
-  LOG(INFO) << "Have " << user_photos->count << " cached user profile photos at offset " << user_photos->offset;
-  vector<PendingGetPhotoRequest> left_requests;
-  for (size_t request_index = 0; request_index < pending_requests.size(); request_index++) {
-    auto &request = pending_requests[request_index];
-    vector<td_api::object_ptr<td_api::chatPhoto>> photo_objects;
-
-    if (request.offset >= user_photos->count) {
-      // offset if too big
-      request.promise.set_value(td_api::make_object<td_api::chatPhotos>(user_photos->count, std::move(photo_objects)));
-      continue;
-    }
-
-    if (request.limit > user_photos->count - request.offset) {
-      request.limit = user_photos->count - request.offset;
-    }
-
-    int32 cache_begin = user_photos->offset;
-    int32 cache_end = cache_begin + narrow_cast<int32>(user_photos->photos.size());
-    if (cache_begin <= request.offset && request.offset + request.limit <= cache_end) {
-      // answer query from cache
-      for (int i = 0; i < request.limit; i++) {
-        photo_objects.push_back(
-            get_chat_photo_object(td_->file_manager_.get(), user_photos->photos[i + request.offset - cache_begin]));
-      }
-      request.promise.set_value(td_api::make_object<td_api::chatPhotos>(user_photos->count, std::move(photo_objects)));
-      continue;
-    }
-
-    if (request_index == 0 && ++request.retry_count >= 3) {
-      request.promise.set_error(Status::Error(500, "Failed to get profile photos"));
-      continue;
-    }
-
-    left_requests.push_back(std::move(request));
-  }
-
-  if (!left_requests.empty()) {
-    bool need_send = user_photos->pending_requests.empty();
-    append(user_photos->pending_requests, std::move(left_requests));
-    if (need_send) {
-      send_get_user_photos_query(user_id, user_photos);
-    }
-  }
-}
-
-void UserManager::reload_user_profile_photo(UserId user_id, int64 photo_id, Promise<Unit> &&promise) {
-  get_user_force(user_id, "reload_user_profile_photo");
-  TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-
-  // this request will be needed only to download the photo,
-  // so there is no reason to combine different requests for a photo into one request
-  td_->create_handler<GetUserPhotosQuery>(std::move(promise))->send(user_id, std::move(input_user), -1, 1, photo_id);
-}
-
-FileSourceId UserManager::get_user_profile_photo_file_source_id(UserId user_id, int64 photo_id) {
-  if (!user_id.is_valid()) {
-    return FileSourceId();
-  }
-
-  auto u = get_user(user_id);
-  if (u != nullptr && u->photo_ids.count(photo_id) != 0) {
-    VLOG(file_references) << "Don't need to create file source for photo " << photo_id << " of " << user_id;
-    // photo was already added, source ID was registered and shouldn't be needed
-    return FileSourceId();
-  }
-
-  auto &source_id = user_profile_photo_file_source_ids_[std::make_pair(user_id, photo_id)];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_user_photo_file_source(user_id, photo_id);
-  }
-  VLOG(file_references) << "Return " << source_id << " for photo " << photo_id << " of " << user_id;
-  return source_id;
-}
-
-UserManager::UserPhotos *UserManager::add_user_photos(UserId user_id) {
-  CHECK(user_id.is_valid());
-  auto &user_photos_ptr = user_photos_[user_id];
-  if (user_photos_ptr == nullptr) {
-    user_photos_ptr = make_unique<UserPhotos>();
-  }
-  return user_photos_ptr.get();
-}
-
-void UserManager::on_get_user_photos(UserId user_id, int32 offset, int32 limit, int32 total_count,
-                                     vector<telegram_api::object_ptr<telegram_api::Photo>> photos) {
-  auto photo_count = narrow_cast<int32>(photos.size());
-  int32 min_total_count = (offset >= 0 && photo_count > 0 ? offset : 0) + photo_count;
-  if (total_count < min_total_count) {
-    LOG(ERROR) << "Receive wrong photos total_count " << total_count << " for user " << user_id << ": receive "
-               << photo_count << " photos with offset " << offset;
-    total_count = min_total_count;
-  }
-  LOG_IF(ERROR, limit < photo_count) << "Requested not more than " << limit << " photos, but " << photo_count
-                                     << " received";
-
-  User *u = get_user(user_id);
-  if (u == nullptr) {
-    LOG(ERROR) << "Can't find " << user_id;
-    return;
-  }
-
-  if (offset == -1) {
-    // from reload_user_profile_photo
-    CHECK(limit == 1);
-    for (auto &photo_ptr : photos) {
-      if (photo_ptr->get_id() == telegram_api::photo::ID) {
-        auto server_photo = telegram_api::move_object_as<telegram_api::photo>(photo_ptr);
-        if (server_photo->id_ == u->photo.id) {
-          auto profile_photo = convert_photo_to_profile_photo(server_photo, u->photo.is_personal);
-          if (profile_photo) {
-            LOG_IF(ERROR, u->access_hash == -1) << "Receive profile photo of " << user_id << " without access hash";
-            get_profile_photo(td_->file_manager_.get(), user_id, u->access_hash, std::move(profile_photo));
-          } else {
-            LOG(ERROR) << "Failed to get profile photo from " << to_string(server_photo);
-          }
-        }
-
-        auto photo = get_photo(td_, std::move(server_photo), DialogId(user_id));
-        register_user_photo(u, user_id, photo);
-      }
-    }
-    return;
-  }
-
-  LOG(INFO) << "Receive " << photo_count << " photos of " << user_id << " out of " << total_count << " with offset "
-            << offset << " and limit " << limit;
-  UserPhotos *user_photos = add_user_photos(user_id);
-  user_photos->count = total_count;
-  CHECK(!user_photos->pending_requests.empty());
-
-  if (user_photos->offset == -1) {
-    user_photos->offset = 0;
-    CHECK(user_photos->photos.empty());
-  }
-
-  if (offset != narrow_cast<int32>(user_photos->photos.size()) + user_photos->offset) {
-    LOG(INFO) << "Inappropriate offset to append " << user_id << " profile photos to cache: offset = " << offset
-              << ", current_offset = " << user_photos->offset << ", photo_count = " << user_photos->photos.size();
-    user_photos->photos.clear();
-    user_photos->offset = offset;
-  }
-
-  for (auto &photo : photos) {
-    auto user_photo = get_photo(td_, std::move(photo), DialogId(user_id));
-    if (user_photo.is_empty()) {
-      LOG(ERROR) << "Receive empty profile photo in getUserPhotos request for " << user_id << " with offset " << offset
-                 << " and limit " << limit << ". Receive " << photo_count << " photos out of " << total_count
-                 << " photos";
-      user_photos->count--;
-      CHECK(user_photos->count >= 0);
-      continue;
-    }
-
-    user_photos->photos.push_back(std::move(user_photo));
-    register_user_photo(u, user_id, user_photos->photos.back());
-  }
-  if (user_photos->offset > user_photos->count) {
-    user_photos->offset = user_photos->count;
-    user_photos->photos.clear();
-  }
-
-  auto known_photo_count = narrow_cast<int32>(user_photos->photos.size());
-  if (user_photos->offset + known_photo_count > user_photos->count) {
-    user_photos->photos.resize(user_photos->count - user_photos->offset);
-  }
-}
-
-void UserManager::apply_pending_user_photo(User *u, UserId user_id, const char *source) {
-  if (u == nullptr || u->is_photo_inited) {
-    return;
-  }
-
-  if (pending_user_photos_.count(user_id) > 0) {
-    do_update_user_photo(u, user_id, std::move(pending_user_photos_[user_id]), source);
-    pending_user_photos_.erase(user_id);
-    update_user(u, user_id);
-  }
-}
-
-void UserManager::register_message_users(MessageFullId message_full_id, vector<UserId> user_ids) {
-  auto dialog_id = message_full_id.get_dialog_id();
-  CHECK(dialog_id.get_type() == DialogType::Channel);
-  if (!td_->chat_manager_->have_channel(dialog_id.get_channel_id())) {
-    return;
-  }
-  for (auto user_id : user_ids) {
-    CHECK(user_id.is_valid());
-    const User *u = get_user(user_id);
-    if (u == nullptr || u->access_hash == -1 || u->is_min_access_hash) {
-      auto &user_messages = user_messages_[user_id];
-      auto need_update = user_messages.empty();
-      user_messages.insert(message_full_id);
-      if (need_update) {
-        send_closure(G()->td(), &Td::send_update, get_update_user_object(user_id, u));
-      }
-    }
-  }
-}
-
-void UserManager::unregister_message_users(MessageFullId message_full_id, vector<UserId> user_ids) {
-  if (user_messages_.empty()) {
-    // fast path
-    return;
-  }
-  for (auto user_id : user_ids) {
-    auto it = user_messages_.find(user_id);
-    if (it != user_messages_.end()) {
-      it->second.erase(message_full_id);
-      if (it->second.empty()) {
-        user_messages_.erase(it);
-
-        const User *u = get_user(user_id);
-        if (u == nullptr || u->access_hash == -1 || u->is_min_access_hash) {
-          send_closure(G()->td(), &Td::send_update, get_update_user_object(user_id, u));
-        }
-      }
-    }
-  }
-}
-
-void UserManager::can_send_message_to_user(UserId user_id, bool force,
-                                           Promise<td_api::object_ptr<td_api::CanSendMessageToUserResult>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (user_id == get_my_id()) {
-    return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultOk>());
-  }
-  const auto *u = get_user(user_id);
-  if (!have_input_peer_user(u, user_id, AccessRights::Write)) {
-    return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultUserIsDeleted>());
-  }
-  CHECK(user_id.is_valid());
-  if ((u != nullptr && ((!u->contact_require_premium && u->paid_message_star_count == 0) || u->is_mutual_contact)) ||
-      (td_->option_manager_->get_option_boolean("is_premium") && u->paid_message_star_count == 0)) {
-    return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultOk>());
-  }
-
-  auto user_full = get_user_full_force(user_id, "can_send_message_to_user");
-  if (user_full != nullptr) {
-    if (user_full->send_paid_message_stars > 0) {
-      return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultUserHasPaidMessages>(
-          user_full->send_paid_message_stars));
-    }
-    if (user_full->contact_require_premium) {
-      return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultUserRestrictsNewChats>());
-    }
-    return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultOk>());
-  }
-
-  auto it = user_full_contact_price_.find(user_id);
-  if (it != user_full_contact_price_.end()) {
-    if (it->second > 0) {
-      return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultUserHasPaidMessages>(it->second));
-    }
-    if (it->second == -1) {
-      return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultUserRestrictsNewChats>());
-    }
-    return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultOk>());
-  }
-
-  if (force) {
-    return promise.set_value(td_api::make_object<td_api::canSendMessageToUserResultOk>());
-  }
-
-  auto query_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), user_id, promise = std::move(promise)](Result<Unit> &&result) mutable {
-        if (result.is_error()) {
-          return promise.set_error(result.move_as_error());
-        }
-        send_closure(actor_id, &UserManager::can_send_message_to_user, user_id, true, std::move(promise));
-      });
-  get_is_premium_required_to_contact_queries_.add_query(user_id.get(), std::move(query_promise),
-                                                        "can_send_message_to_user");
-}
-
-void UserManager::on_get_is_premium_required_to_contact_users(
-    vector<UserId> &&user_ids, vector<telegram_api::object_ptr<telegram_api::RequirementToContact>> &&requirements,
-    Promise<Unit> &&promise) {
-  if (user_ids.size() != requirements.size()) {
-    LOG(ERROR) << "Receive " << requirements.size() << " flags instead of " << user_ids.size();
-    return promise.set_error(Status::Error(500, "Receive invalid response"));
-  }
-  for (size_t i = 0; i < user_ids.size(); i++) {
-    auto user_id = user_ids[i];
-    CHECK(user_id.is_valid());
-    if (get_user_full(user_id) == nullptr) {
-      const auto &requirement = requirements[i].get();
-      switch (requirement->get_id()) {
-        case telegram_api::requirementToContactEmpty::ID:
-          user_full_contact_price_[user_id] = 0;
-          break;
-        case telegram_api::requirementToContactPremium::ID:
-          user_full_contact_price_[user_id] = -1;
-          break;
-        case telegram_api::requirementToContactPaidMessages::ID:
-          user_full_contact_price_[user_id] = StarManager::get_star_count(
-              static_cast<const telegram_api::requirementToContactPaidMessages *>(requirement)->stars_amount_);
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-  }
-  promise.set_value(Unit());
-}
-
-void UserManager::allow_send_message_to_user(UserId user_id) {
-  CHECK(!td_->auth_manager_->is_bot());
-  if (get_user_full(user_id) == nullptr) {
-    CHECK(user_id.is_valid());
-    auto it = user_full_contact_price_.find(user_id);
-    if (it != user_full_contact_price_.end() && it->second == -1) {
-      it->second = 0;
-    }
-  }
-}
-
-void UserManager::share_phone_number(UserId user_id, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (!are_contacts_loaded_) {
-    load_contacts(PromiseCreator::lambda(
-        [actor_id = actor_id(this), user_id, promise = std::move(promise)](Result<Unit> &&) mutable {
-          send_closure(actor_id, &UserManager::share_phone_number, user_id, std::move(promise));
-        }));
-    return;
-  }
-
-  LOG(INFO) << "Share phone number with " << user_id;
-  TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-
-  td_->messages_manager_->hide_dialog_action_bar(DialogId(user_id));
-
-  td_->create_handler<AcceptContactQuery>(std::move(promise))->send(user_id, std::move(input_user));
-}
-
-void UserManager::load_contacts(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    are_contacts_loaded_ = true;
-    saved_contact_count_ = 0;
-  }
-  if (are_contacts_loaded_ && saved_contact_count_ != -1) {
-    LOG(INFO) << "Contacts are already loaded";
-    return promise.set_value(Unit());
-  }
-  load_contacts_queries_.push_back(std::move(promise));
-  if (load_contacts_queries_.size() == 1u) {
-    if (G()->use_chat_info_database() && next_contacts_sync_date_ > 0 && saved_contact_count_ != -1) {
-      LOG(INFO) << "Load contacts from database";
-      G()->td_db()->get_sqlite_pmc()->get(
-          "user_contacts", PromiseCreator::lambda([](string value) {
-            send_closure(G()->user_manager(), &UserManager::on_load_contacts_from_database, std::move(value));
-          }));
-    } else {
-      LOG(INFO) << "Load contacts from server";
-      reload_contacts(true);
-    }
-  } else {
-    LOG(INFO) << "Load contacts request has already been sent";
-  }
-}
-
-int64 UserManager::get_contacts_hash() {
-  if (!are_contacts_loaded_) {
-    return 0;
-  }
-
-  vector<int64> user_ids = contacts_hints_.search_empty(100000).second;
-  CHECK(std::is_sorted(user_ids.begin(), user_ids.end()));
-  auto my_id = get_my_id();
-  const User *u = get_user_force(my_id, "get_contacts_hash");
-  if (u != nullptr && u->is_contact) {
-    user_ids.insert(std::upper_bound(user_ids.begin(), user_ids.end(), my_id.get()), my_id.get());
-  }
-
-  vector<uint64> numbers;
-  numbers.reserve(user_ids.size() + 1);
-  numbers.push_back(saved_contact_count_);
-  for (auto user_id : user_ids) {
-    numbers.push_back(user_id);
-  }
-  return get_vector_hash(numbers);
-}
-
-void UserManager::reload_contacts(bool force) {
-  if (!G()->close_flag() && !td_->auth_manager_->is_bot() &&
-      next_contacts_sync_date_ != std::numeric_limits<int32>::max() &&
-      (next_contacts_sync_date_ < G()->unix_time() || force)) {
-    next_contacts_sync_date_ = std::numeric_limits<int32>::max();
-    td_->create_handler<GetContactsQuery>()->send(get_contacts_hash());
-  }
-}
-
-void UserManager::save_next_contacts_sync_date() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-  G()->td_db()->get_binlog_pmc()->set("next_contacts_sync_date", to_string(next_contacts_sync_date_));
-}
-
-void UserManager::save_contacts_to_database() {
-  if (!G()->use_chat_info_database() || !are_contacts_loaded_) {
-    return;
-  }
-
-  LOG(INFO) << "Schedule save contacts to database";
-  vector<UserId> user_ids =
-      transform(contacts_hints_.search_empty(100000).second, [](int64 key) { return UserId(key); });
-
-  G()->td_db()->get_binlog_pmc()->set("saved_contact_count", to_string(saved_contact_count_));
-  G()->td_db()->get_binlog()->force_sync(
-      PromiseCreator::lambda([user_ids = std::move(user_ids)](Result<> result) {
-        if (result.is_ok()) {
-          LOG(INFO) << "Saved contacts to database";
-          G()->td_db()->get_sqlite_pmc()->set(
-              "user_contacts", log_event_store(user_ids).as_slice().str(), PromiseCreator::lambda([](Result<> result) {
-                if (result.is_ok()) {
-                  send_closure(G()->user_manager(), &UserManager::save_next_contacts_sync_date);
-                }
-              }));
-        }
-      }),
-      "save_contacts_to_database");
-}
-
-void UserManager::on_get_contacts(telegram_api::object_ptr<telegram_api::contacts_Contacts> &&new_contacts) {
-  next_contacts_sync_date_ = G()->unix_time() + Random::fast(70000, 100000);
-
-  CHECK(new_contacts != nullptr);
-  if (new_contacts->get_id() == telegram_api::contacts_contactsNotModified::ID) {
-    if (saved_contact_count_ == -1) {
-      saved_contact_count_ = 0;
-    }
-    on_get_contacts_finished(contacts_hints_.size());
-    td_->create_handler<GetContactsStatusesQuery>()->send();
-    return;
-  }
-
-  auto contacts = move_tl_object_as<telegram_api::contacts_contacts>(new_contacts);
-  FlatHashSet<UserId, UserIdHash> contact_user_ids;
-  for (auto &user : contacts->users_) {
-    auto user_id = get_user_id(user);
-    if (!user_id.is_valid()) {
-      LOG(ERROR) << "Receive invalid " << user_id;
-      continue;
-    }
-    contact_user_ids.insert(user_id);
-  }
-  on_get_users(std::move(contacts->users_), "on_get_contacts");
-
-  UserId my_id = get_my_id();
-  users_.foreach([&](const UserId &user_id, unique_ptr<User> &user) {
-    User *u = user.get();
-    bool should_be_contact = contact_user_ids.count(user_id) == 1;
-    if (u->is_contact != should_be_contact) {
-      if (u->is_contact) {
-        LOG(INFO) << "Drop contact with " << user_id;
-        if (user_id != my_id) {
-          LOG_CHECK(contacts_hints_.has_key(user_id.get()))
-              << my_id << " " << user_id << " " << to_string(get_user_object(user_id, u));
-        }
-        on_update_user_is_contact(u, user_id, false, false, false);
-        CHECK(u->is_is_contact_changed);
-        u->cache_version = 0;
-        u->is_repaired = false;
-        update_user(u, user_id);
-        CHECK(!u->is_contact);
-        if (user_id != my_id) {
-          CHECK(!contacts_hints_.has_key(user_id.get()));
-        }
-      } else {
-        LOG(ERROR) << "Receive non-contact " << user_id << " in the list of contacts";
-      }
-    }
-  });
-
-  saved_contact_count_ = contacts->saved_count_;
-  on_get_contacts_finished(std::numeric_limits<size_t>::max());
-}
-
-void UserManager::on_get_contacts_failed(Status error) {
-  CHECK(error.is_error());
-  next_contacts_sync_date_ = G()->unix_time() + Random::fast(5, 10);
-  fail_promises(load_contacts_queries_, std::move(error));
-}
-
-void UserManager::on_load_contacts_from_database(string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (value.empty()) {
-    reload_contacts(true);
-    return;
-  }
-
-  vector<UserId> user_ids;
-  if (log_event_parse(user_ids, value).is_error()) {
-    LOG(ERROR) << "Failed to load contacts from database";
-    reload_contacts(true);
-    return;
-  }
-
-  if (log_event_get_version(value) < static_cast<int32>(Version::AddUserFlags2)) {
-    next_contacts_sync_date_ = 0;
-    save_next_contacts_sync_date();
-    reload_contacts(true);
-  }
-
-  LOG(INFO) << "Successfully loaded " << user_ids.size() << " contacts from database";
-
-  load_contact_users_multipromise_.add_promise(PromiseCreator::lambda(
-      [actor_id = actor_id(this), expected_contact_count = user_ids.size()](Result<Unit> result) {
-        if (result.is_ok()) {
-          send_closure(actor_id, &UserManager::on_get_contacts_finished, expected_contact_count);
-        } else {
-          LOG(INFO) << "Failed to load contact users from database: " << result.error();
-          send_closure(actor_id, &UserManager::reload_contacts, true);
-        }
-      }));
-
-  auto lock_promise = load_contact_users_multipromise_.get_promise();
-
-  for (auto user_id : user_ids) {
-    get_user(user_id, 3, load_contact_users_multipromise_.get_promise());
-  }
-
-  lock_promise.set_value(Unit());
-}
-
-void UserManager::on_get_contacts_finished(size_t expected_contact_count) {
-  LOG(INFO) << "Finished to get " << contacts_hints_.size() << " contacts out of expected " << expected_contact_count;
-  are_contacts_loaded_ = true;
-  set_promises(load_contacts_queries_);
-  if (expected_contact_count != contacts_hints_.size()) {
-    save_contacts_to_database();
-  }
-}
-
-void UserManager::on_get_contacts_statuses(vector<telegram_api::object_ptr<telegram_api::contactStatus>> &&statuses) {
-  auto my_user_id = get_my_id();
-  for (auto &status : statuses) {
-    UserId user_id(status->user_id_);
-    if (user_id != my_user_id) {
-      on_update_user_online(user_id, std::move(status->status_));
-    }
-  }
-  save_next_contacts_sync_date();
-}
-
-void UserManager::add_contact(Contact contact, bool share_phone_number, Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (!are_contacts_loaded_) {
-    load_contacts(PromiseCreator::lambda([actor_id = actor_id(this), contact = std::move(contact), share_phone_number,
-                                          promise = std::move(promise)](Result<Unit> &&) mutable {
-      send_closure(actor_id, &UserManager::add_contact, std::move(contact), share_phone_number, std::move(promise));
-    }));
-    return;
-  }
-
-  LOG(INFO) << "Add " << contact << " with share_phone_number = " << share_phone_number;
-
-  auto user_id = contact.get_user_id();
-  TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-
-  td_->create_handler<AddContactQuery>(std::move(promise))
-      ->send(user_id, std::move(input_user), contact, share_phone_number);
-}
-
-std::pair<vector<UserId>, vector<int32>> UserManager::import_contacts(const vector<Contact> &contacts, int64 &random_id,
-                                                                      Promise<Unit> &&promise) {
-  if (!are_contacts_loaded_) {
-    load_contacts(std::move(promise));
-    return {};
-  }
-
-  LOG(INFO) << "Asked to import " << contacts.size() << " contacts with random_id = " << random_id;
-  if (random_id != 0) {
-    // request has already been sent before
-    auto it = imported_contacts_.find(random_id);
-    CHECK(it != imported_contacts_.end());
-    auto result = std::move(it->second);
-    imported_contacts_.erase(it);
-
-    promise.set_value(Unit());
-    return result;
-  }
-
-  do {
-    random_id = Random::secure_int64();
-  } while (random_id == 0 || random_id == 1 || imported_contacts_.count(random_id) > 0);
-  imported_contacts_[random_id];  // reserve place for result
-
-  do_import_contacts(contacts, random_id, std::move(promise));
-  return {};
-}
-
-void UserManager::do_import_contacts(vector<Contact> contacts, int64 random_id, Promise<Unit> &&promise) {
-  size_t size = contacts.size();
-  if (size == 0) {
-    on_import_contacts_finished(random_id, {}, {});
-    return promise.set_value(Unit());
-  }
-
-  vector<telegram_api::object_ptr<telegram_api::inputPhoneContact>> input_phone_contacts;
-  input_phone_contacts.reserve(size);
-  for (size_t i = 0; i < size; i++) {
-    input_phone_contacts.push_back(contacts[i].get_input_phone_contact(static_cast<int64>(i)));
-  }
-
-  auto task = make_unique<ImportContactsTask>();
-  task->promise_ = std::move(promise);
-  task->input_contacts_ = std::move(contacts);
-  task->imported_user_ids_.resize(size);
-  task->unimported_contact_invites_.resize(size);
-
-  bool is_added = import_contact_tasks_.emplace(random_id, std::move(task)).second;
-  CHECK(is_added);
-
-  td_->create_handler<ImportContactsQuery>()->send(std::move(input_phone_contacts), random_id);
-}
-
-void UserManager::on_imported_contacts(
-    int64 random_id, Result<telegram_api::object_ptr<telegram_api::contacts_importedContacts>> result) {
-  auto it = import_contact_tasks_.find(random_id);
-  CHECK(it != import_contact_tasks_.end());
-  CHECK(it->second != nullptr);
-
-  auto task = it->second.get();
-  if (result.is_error()) {
-    auto promise = std::move(task->promise_);
-    import_contact_tasks_.erase(it);
-    return promise.set_error(result.move_as_error());
-  }
-
-  auto imported_contacts = result.move_as_ok();
-  on_get_users(std::move(imported_contacts->users_), "on_imported_contacts");
-
-  for (auto &imported_contact : imported_contacts->imported_) {
-    int64 client_id = imported_contact->client_id_;
-    if (client_id < 0 || client_id >= static_cast<int64>(task->imported_user_ids_.size())) {
-      LOG(ERROR) << "Wrong client_id " << client_id << " returned";
-      continue;
-    }
-
-    task->imported_user_ids_[static_cast<size_t>(client_id)] = UserId(imported_contact->user_id_);
-  }
-  for (auto &popular_contact : imported_contacts->popular_invites_) {
-    int64 client_id = popular_contact->client_id_;
-    if (client_id < 0 || client_id >= static_cast<int64>(task->unimported_contact_invites_.size())) {
-      LOG(ERROR) << "Wrong client_id " << client_id << " returned";
-      continue;
-    }
-    if (popular_contact->importers_ < 0) {
-      LOG(ERROR) << "Wrong number of importers " << popular_contact->importers_ << " returned";
-      continue;
-    }
-
-    task->unimported_contact_invites_[static_cast<size_t>(client_id)] = popular_contact->importers_;
-  }
-
-  if (!imported_contacts->retry_contacts_.empty()) {
-    auto total_size = static_cast<int64>(task->input_contacts_.size());
-    vector<telegram_api::object_ptr<telegram_api::inputPhoneContact>> input_phone_contacts;
-    input_phone_contacts.reserve(imported_contacts->retry_contacts_.size());
-    for (auto &client_id : imported_contacts->retry_contacts_) {
-      if (client_id < 0 || client_id >= total_size) {
-        LOG(ERROR) << "Wrong client_id " << client_id << " returned";
-        continue;
-      }
-      auto i = static_cast<size_t>(client_id);
-      input_phone_contacts.push_back(task->input_contacts_[i].get_input_phone_contact(client_id));
-    }
-    td_->create_handler<ImportContactsQuery>()->send(std::move(input_phone_contacts), random_id);
-    return;
-  }
-
-  auto promise = std::move(task->promise_);
-  on_import_contacts_finished(random_id, std::move(task->imported_user_ids_),
-                              std::move(task->unimported_contact_invites_));
-  import_contact_tasks_.erase(it);
-  promise.set_value(Unit());
-}
-
-void UserManager::on_import_contacts_finished(int64 random_id, vector<UserId> imported_contact_user_ids,
-                                              vector<int32> unimported_contact_invites) {
-  LOG(INFO) << "Contacts import with random_id " << random_id << " has finished: " << imported_contact_user_ids;
-  if (random_id == 1) {
-    // import from change_imported_contacts
-    all_imported_contacts_ = std::move(next_all_imported_contacts_);
-    next_all_imported_contacts_.clear();
-
-    auto result_size = imported_contacts_unique_id_.size();
-    auto unique_size = all_imported_contacts_.size();
-    auto add_size = imported_contacts_pos_.size();
-
-    imported_contact_user_ids_.resize(result_size);
-    unimported_contact_invites_.resize(result_size);
-
-    CHECK(imported_contact_user_ids.size() == add_size);
-    CHECK(unimported_contact_invites.size() == add_size);
-    CHECK(imported_contacts_unique_id_.size() == result_size);
-
-    std::unordered_map<int64, int32, Hash<int64>> unique_id_to_unimported_contact_invites;
-    for (size_t i = 0; i < add_size; i++) {
-      auto unique_id = imported_contacts_pos_[i];
-      get_user_id_object(imported_contact_user_ids[i], "on_import_contacts_finished");  // to ensure updateUser
-      all_imported_contacts_[unique_id].set_user_id(imported_contact_user_ids[i]);
-      unique_id_to_unimported_contact_invites[narrow_cast<int64>(unique_id)] = unimported_contact_invites[i];
-    }
-
-    if (G()->use_chat_info_database()) {
-      G()->td_db()->get_binlog()->force_sync(
-          PromiseCreator::lambda(
-              [log_event = log_event_store(all_imported_contacts_).as_slice().str()](Result<> result) mutable {
-                if (result.is_ok()) {
-                  LOG(INFO) << "Save imported contacts to database";
-                  G()->td_db()->get_sqlite_pmc()->set("user_imported_contacts", std::move(log_event), Auto());
-                }
-              }),
-          "on_import_contacts_finished");
-    }
-
-    for (size_t i = 0; i < result_size; i++) {
-      auto unique_id = imported_contacts_unique_id_[i];
-      CHECK(unique_id < unique_size);
-      imported_contact_user_ids_[i] = all_imported_contacts_[unique_id].get_user_id();
-      auto it = unique_id_to_unimported_contact_invites.find(narrow_cast<int64>(unique_id));
-      if (it == unique_id_to_unimported_contact_invites.end()) {
-        unimported_contact_invites_[i] = 0;
-      } else {
-        unimported_contact_invites_[i] = it->second;
-      }
-    }
-    return;
-  }
-
-  auto it = imported_contacts_.find(random_id);
-  CHECK(it != imported_contacts_.end());
-  CHECK(it->second.first.empty());
-  CHECK(it->second.second.empty());
-  imported_contacts_[random_id] = {std::move(imported_contact_user_ids), std::move(unimported_contact_invites)};
-}
-
-void UserManager::remove_contacts(const vector<UserId> &user_ids, Promise<Unit> &&promise) {
-  LOG(INFO) << "Delete contacts: " << user_ids;
-  if (!are_contacts_loaded_) {
-    load_contacts(std::move(promise));
-    return;
-  }
-
-  vector<UserId> to_delete_user_ids;
-  vector<telegram_api::object_ptr<telegram_api::InputUser>> input_users;
-  for (auto &user_id : user_ids) {
-    const User *u = get_user(user_id);
-    if (u != nullptr && u->is_contact) {
-      auto r_input_user = get_input_user(user_id);
-      if (r_input_user.is_ok()) {
-        to_delete_user_ids.push_back(user_id);
-        input_users.push_back(r_input_user.move_as_ok());
-      }
-    }
-  }
-
-  if (input_users.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  td_->create_handler<DeleteContactsQuery>(std::move(promise))->send(std::move(input_users));
-}
-
-void UserManager::remove_contacts_by_phone_number(vector<string> user_phone_numbers, vector<UserId> user_ids,
-                                                  Promise<Unit> &&promise) {
-  LOG(INFO) << "Delete contacts by phone number: " << user_phone_numbers;
-  if (!are_contacts_loaded_) {
-    load_contacts(std::move(promise));
-    return;
-  }
-
-  td_->create_handler<DeleteContactsByPhoneNumberQuery>(std::move(promise))
-      ->send(std::move(user_phone_numbers), std::move(user_ids));
-}
-
-void UserManager::on_deleted_contacts(const vector<UserId> &deleted_contact_user_ids) {
-  LOG(INFO) << "Contacts deletion has finished for " << deleted_contact_user_ids;
-
-  for (auto user_id : deleted_contact_user_ids) {
-    auto u = get_user(user_id);
-    CHECK(u != nullptr);
-    if (!u->is_contact) {
-      continue;
-    }
-
-    LOG(INFO) << "Drop contact with " << user_id;
-    on_update_user_is_contact(u, user_id, false, false, false);
-    CHECK(u->is_is_contact_changed);
-    u->cache_version = 0;
-    u->is_repaired = false;
-    update_user(u, user_id);
-    CHECK(!u->is_contact);
-    CHECK(!contacts_hints_.has_key(user_id.get()));
-  }
-}
-
-int32 UserManager::get_imported_contact_count(Promise<Unit> &&promise) {
-  LOG(INFO) << "Get imported contact count";
-
-  if (!are_contacts_loaded_ || saved_contact_count_ == -1) {
-    load_contacts(std::move(promise));
-    return 0;
-  }
-  reload_contacts(false);
-
-  promise.set_value(Unit());
-  return saved_contact_count_;
-}
-
-void UserManager::load_imported_contacts(Promise<Unit> &&promise) {
-  if (td_->auth_manager_->is_bot()) {
-    are_imported_contacts_loaded_ = true;
-  }
-  if (are_imported_contacts_loaded_) {
-    LOG(INFO) << "Imported contacts are already loaded";
-    promise.set_value(Unit());
-    return;
-  }
-  load_imported_contacts_queries_.push_back(std::move(promise));
-  if (load_imported_contacts_queries_.size() == 1u) {
-    if (G()->use_chat_info_database()) {
-      LOG(INFO) << "Load imported contacts from database";
-      G()->td_db()->get_sqlite_pmc()->get("user_imported_contacts", PromiseCreator::lambda([](string value) {
-                                            send_closure_later(G()->user_manager(),
-                                                               &UserManager::on_load_imported_contacts_from_database,
-                                                               std::move(value));
-                                          }));
-    } else {
-      LOG(INFO) << "Have no previously imported contacts";
-      send_closure_later(G()->user_manager(), &UserManager::on_load_imported_contacts_from_database, string());
-    }
-  } else {
-    LOG(INFO) << "Load imported contacts request has already been sent";
-  }
-}
-
-void UserManager::on_load_imported_contacts_from_database(string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(!are_imported_contacts_loaded_);
-  if (need_clear_imported_contacts_) {
-    need_clear_imported_contacts_ = false;
-    value.clear();
-  }
-  if (value.empty()) {
-    CHECK(all_imported_contacts_.empty());
-  } else {
-    if (log_event_parse(all_imported_contacts_, value).is_error()) {
-      LOG(ERROR) << "Failed to load all imported contacts from database";
-      all_imported_contacts_.clear();
-    } else {
-      LOG(INFO) << "Successfully loaded " << all_imported_contacts_.size() << " imported contacts from database";
-    }
-  }
-
-  load_imported_contact_users_multipromise_.add_promise(
-      PromiseCreator::lambda([actor_id = actor_id(this)](Result<Unit> result) {
-        if (result.is_ok()) {
-          send_closure_later(actor_id, &UserManager::on_load_imported_contacts_finished);
-        }
-      }));
-
-  auto lock_promise = load_imported_contact_users_multipromise_.get_promise();
-
-  for (const auto &contact : all_imported_contacts_) {
-    auto user_id = contact.get_user_id();
-    if (user_id.is_valid()) {
-      get_user(user_id, 3, load_imported_contact_users_multipromise_.get_promise());
-    }
-  }
-
-  lock_promise.set_value(Unit());
-}
-
-void UserManager::on_load_imported_contacts_finished() {
-  LOG(INFO) << "Finished to load " << all_imported_contacts_.size() << " imported contacts";
-
-  for (const auto &contact : all_imported_contacts_) {
-    get_user_id_object(contact.get_user_id(), "on_load_imported_contacts_finished");  // to ensure updateUser
-  }
-
-  if (need_clear_imported_contacts_) {
-    need_clear_imported_contacts_ = false;
-    all_imported_contacts_.clear();
-  }
-  are_imported_contacts_loaded_ = true;
-  set_promises(load_imported_contacts_queries_);
-}
-
-std::pair<vector<UserId>, vector<int32>> UserManager::change_imported_contacts(vector<Contact> &contacts,
-                                                                               int64 &random_id,
-                                                                               Promise<Unit> &&promise) {
-  if (!are_contacts_loaded_) {
-    load_contacts(std::move(promise));
-    return {};
-  }
-  if (!are_imported_contacts_loaded_) {
-    load_imported_contacts(std::move(promise));
-    return {};
-  }
-
-  LOG(INFO) << "Asked to change imported contacts to a list of " << contacts.size()
-            << " contacts with random_id = " << random_id;
-  if (random_id != 0) {
-    // request has already been sent before
-    if (need_clear_imported_contacts_) {
-      need_clear_imported_contacts_ = false;
-      all_imported_contacts_.clear();
-      if (G()->use_chat_info_database()) {
-        G()->td_db()->get_sqlite_pmc()->erase("user_imported_contacts", Auto());
-      }
-      reload_contacts(true);
-    }
-
-    CHECK(are_imported_contacts_changing_);
-    are_imported_contacts_changing_ = false;
-
-    auto unimported_contact_invites = std::move(unimported_contact_invites_);
-    unimported_contact_invites_.clear();
-
-    auto imported_contact_user_ids = std::move(imported_contact_user_ids_);
-    imported_contact_user_ids_.clear();
-
-    promise.set_value(Unit());
-    return {std::move(imported_contact_user_ids), std::move(unimported_contact_invites)};
-  }
-
-  if (are_imported_contacts_changing_) {
-    promise.set_error(Status::Error(400, "ChangeImportedContacts can be called only once at the same time"));
-    return {};
-  }
-
-  vector<size_t> new_contacts_unique_id(contacts.size());
-  vector<Contact> unique_new_contacts;
-  unique_new_contacts.reserve(contacts.size());
-  std::unordered_map<Contact, size_t, ContactHash, ContactEqual> different_new_contacts;
-  std::unordered_set<string, Hash<string>> different_new_phone_numbers;
-  size_t unique_size = 0;
-  for (size_t i = 0; i < contacts.size(); i++) {
-    auto it_success = different_new_contacts.emplace(std::move(contacts[i]), unique_size);
-    new_contacts_unique_id[i] = it_success.first->second;
-    if (it_success.second) {
-      unique_new_contacts.push_back(it_success.first->first);
-      different_new_phone_numbers.insert(unique_new_contacts.back().get_phone_number());
-      unique_size++;
-    }
-  }
-
-  vector<string> to_delete;
-  vector<UserId> to_delete_user_ids;
-  for (auto &old_contact : all_imported_contacts_) {
-    auto user_id = old_contact.get_user_id();
-    auto it = different_new_contacts.find(old_contact);
-    if (it == different_new_contacts.end()) {
-      auto phone_number = old_contact.get_phone_number();
-      if (different_new_phone_numbers.count(phone_number) == 0) {
-        to_delete.push_back(std::move(phone_number));
-        if (user_id.is_valid()) {
-          to_delete_user_ids.push_back(user_id);
-        }
-      }
-    } else {
-      unique_new_contacts[it->second].set_user_id(user_id);
-      different_new_contacts.erase(it);
-    }
-  }
-  std::pair<vector<size_t>, vector<Contact>> to_add;
-  for (auto &new_contact : different_new_contacts) {
-    to_add.first.push_back(new_contact.second);
-    to_add.second.push_back(new_contact.first);
-  }
-
-  if (to_add.first.empty() && to_delete.empty()) {
-    for (size_t i = 0; i < contacts.size(); i++) {
-      auto unique_id = new_contacts_unique_id[i];
-      contacts[i].set_user_id(unique_new_contacts[unique_id].get_user_id());
-    }
-
-    promise.set_value(Unit());
-    return {transform(contacts, [&](const Contact &contact) { return contact.get_user_id(); }),
-            vector<int32>(contacts.size())};
-  }
-
-  are_imported_contacts_changing_ = true;
-  random_id = 1;
-
-  remove_contacts_by_phone_number(
-      std::move(to_delete), std::move(to_delete_user_ids),
-      PromiseCreator::lambda([new_contacts = std::move(unique_new_contacts),
-                              new_contacts_unique_id = std::move(new_contacts_unique_id), to_add = std::move(to_add),
-                              promise = std::move(promise)](Result<> result) mutable {
-        if (result.is_ok()) {
-          send_closure_later(G()->user_manager(), &UserManager::on_clear_imported_contacts, std::move(new_contacts),
-                             std::move(new_contacts_unique_id), std::move(to_add), std::move(promise));
-        } else {
-          promise.set_error(result.move_as_error());
-        }
-      }));
-  return {};
-}
-
-void UserManager::clear_imported_contacts(Promise<Unit> &&promise) {
-  LOG(INFO) << "Delete imported contacts";
-
-  if (saved_contact_count_ == 0) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  td_->create_handler<ResetContactsQuery>(std::move(promise))->send();
-}
-
-void UserManager::on_clear_imported_contacts(vector<Contact> &&contacts, vector<size_t> contacts_unique_id,
-                                             std::pair<vector<size_t>, vector<Contact>> &&to_add,
-                                             Promise<Unit> &&promise) {
-  LOG(INFO) << "Add " << to_add.first.size() << " contacts";
-  next_all_imported_contacts_ = std::move(contacts);
-  imported_contacts_unique_id_ = std::move(contacts_unique_id);
-  imported_contacts_pos_ = std::move(to_add.first);
-
-  do_import_contacts(std::move(to_add.second), 1, std::move(promise));
-}
-
-void UserManager::on_update_contacts_reset() {
-  /*
-  UserId my_id = get_my_id();
-  users_.foreach([&](const UserId &user_id, unique_ptr<User> &user) {
-    User *u = user.get();
-    if (u->is_contact) {
-      LOG(INFO) << "Drop contact with " << user_id;
-      if (user_id != my_id) {
-        CHECK(contacts_hints_.has_key(user_id.get()));
-      }
-      on_update_user_is_contact(u, user_id, false, false, false);
-      CHECK(u->is_is_contact_changed);
-      u->cache_version = 0;
-      u->is_repaired = false;
-      update_user(u, user_id);
-      CHECK(!u->is_contact);
-      if (user_id != my_id) {
-        CHECK(!contacts_hints_.has_key(user_id.get()));
-      }
-    }
-  });
-  */
-
-  saved_contact_count_ = 0;
-  if (G()->use_chat_info_database()) {
-    G()->td_db()->get_binlog_pmc()->set("saved_contact_count", "0");
-    G()->td_db()->get_sqlite_pmc()->erase("user_imported_contacts", Auto());
-  }
-  if (!are_imported_contacts_loaded_) {
-    if (load_imported_contacts_queries_.empty()) {
-      CHECK(all_imported_contacts_.empty());
-      LOG(INFO) << "Imported contacts were never loaded, just clear them";
-    } else {
-      LOG(INFO) << "Imported contacts are being loaded, clear them after they will be loaded";
-      need_clear_imported_contacts_ = true;
-    }
-  } else {
-    if (!are_imported_contacts_changing_) {
-      LOG(INFO) << "Imported contacts were loaded, but aren't changing now, just clear them";
-      all_imported_contacts_.clear();
-    } else {
-      LOG(INFO) << "Imported contacts are changing now, clear them after they will be changed";
-      need_clear_imported_contacts_ = true;
-    }
-  }
-  reload_contacts(true);
-}
-
-void UserManager::update_contacts_hints(const User *u, UserId user_id, bool from_database) {
-  bool is_contact = is_user_contact(u, user_id, false);
-  if (td_->auth_manager_->is_bot()) {
-    LOG_IF(ERROR, is_contact) << "Bot has " << user_id << " in the contacts list";
-    return;
-  }
-
-  int64 key = user_id.get();
-  string old_value = contacts_hints_.key_to_string(key);
-  string new_value = is_contact ? get_user_search_text(u) : string();
-
-  if (new_value != old_value) {
-    if (is_contact) {
-      contacts_hints_.add(key, new_value);
-    } else {
-      contacts_hints_.remove(key);
-    }
-  }
-
-  if (G()->use_chat_info_database()) {
-    // update contacts database
-    if (!are_contacts_loaded_) {
-      if (!from_database && load_contacts_queries_.empty() && is_contact && u->is_is_contact_changed) {
-        search_contacts("", std::numeric_limits<int32>::max(), Auto());
-      }
-    } else {
-      if (old_value.empty() == is_contact) {
-        save_contacts_to_database();
-      }
-    }
-  }
-}
-
-std::pair<int32, vector<UserId>> UserManager::search_contacts(const string &query, int32 limit,
-                                                              Promise<Unit> &&promise) {
-  LOG(INFO) << "Search contacts with query = \"" << query << "\" and limit = " << limit;
-
-  if (limit < 0) {
-    promise.set_error(Status::Error(400, "Limit must be non-negative"));
-    return {};
-  }
-
-  if (!are_contacts_loaded_) {
-    load_contacts(std::move(promise));
-    return {};
-  }
-  reload_contacts(false);
-
-  std::pair<size_t, vector<int64>> result;
-  if (query.empty()) {
-    result = contacts_hints_.search_empty(limit);
-  } else {
-    result = contacts_hints_.search(query, limit);
-  }
-
-  vector<UserId> user_ids;
-  user_ids.reserve(result.second.size());
-  for (auto key : result.second) {
-    user_ids.emplace_back(key);
-  }
-
-  promise.set_value(Unit());
-  return {narrow_cast<int32>(result.first), std::move(user_ids)};
-}
-
-void UserManager::reload_contact_birthdates(bool force) {
-  if (td_->option_manager_->get_option_boolean("dismiss_birthday_contact_today")) {
-    contact_birthdates_.need_drop_ = true;
-    if (!contact_birthdates_.is_being_synced_) {
-      contact_birthdates_.is_being_synced_ = true;
-      on_get_contact_birthdates(nullptr);
-    }
-    return;
-  }
-  if (!G()->close_flag() && !td_->auth_manager_->is_bot() && !contact_birthdates_.is_being_synced_ &&
-      (contact_birthdates_.next_sync_time_ < Time::now() || force)) {
-    contact_birthdates_.is_being_synced_ = true;
-    td_->create_handler<GetContactsBirthdaysQuery>()->send();
-  }
-}
-
-void UserManager::on_get_contact_birthdates(
-    telegram_api::object_ptr<telegram_api::contacts_contactBirthdays> &&birthdays) {
-  CHECK(contact_birthdates_.is_being_synced_);
-  contact_birthdates_.is_being_synced_ = false;
-  if (contact_birthdates_.need_drop_) {
-    birthdays = telegram_api::make_object<telegram_api::contacts_contactBirthdays>(Auto(), Auto());
-    contact_birthdates_.need_drop_ = false;
-  }
-  if (birthdays == nullptr) {
-    contact_birthdates_.next_sync_time_ = Time::now() + Random::fast(120, 180);
-    return;
-  }
-  contact_birthdates_.next_sync_time_ = Time::now() + Random::fast(86400 / 4, 86400 / 3);
-
-  on_get_users(std::move(birthdays->users_), "on_get_contact_birthdates");
-  vector<std::pair<UserId, Birthdate>> users;
-  for (auto &contact : birthdays->contacts_) {
-    UserId user_id(contact->contact_id_);
-    if (is_user_contact(user_id)) {
-      Birthdate birthdate(std::move(contact->birthday_));
-      UserFull *user_full = get_user_full_force(user_id, "on_get_contact_birthdates");
-      if (user_full != nullptr && user_full->birthdate != birthdate) {
-        user_full->birthdate = birthdate;
-        user_full->is_changed = true;
-        update_user_full(user_full, user_id, "on_get_contact_birthdates");
-      }
-      if (!birthdate.is_empty()) {
-        users.emplace_back(user_id, birthdate);
-      }
-    }
-  }
-  if (contact_birthdates_.users_ != users) {
-    contact_birthdates_.users_ = std::move(users);
-    send_closure(G()->td(), &Td::send_update, get_update_contact_close_birthdays());
-  }
-  // there is no need to save them between restarts
-}
-
-void UserManager::hide_contact_birthdays(Promise<Unit> &&promise) {
-  td_->create_handler<DismissContactBirthdaysSuggestionQuery>(std::move(promise))->send();
-}
-
-vector<UserId> UserManager::get_close_friends(Promise<Unit> &&promise) {
-  if (!are_contacts_loaded_) {
-    load_contacts(std::move(promise));
-    return {};
-  }
-  reload_contacts(false);
-
-  auto result = contacts_hints_.search_empty(10000);
-
-  vector<UserId> user_ids;
-  for (auto key : result.second) {
-    UserId user_id(key);
-    const User *u = get_user(user_id);
-    if (u != nullptr && u->is_close_friend) {
-      user_ids.push_back(user_id);
-    }
-  }
-
-  promise.set_value(Unit());
-  return user_ids;
-}
-
-void UserManager::set_close_friends(vector<UserId> user_ids, Promise<Unit> &&promise) {
-  for (auto &user_id : user_ids) {
-    if (!have_user(user_id)) {
-      return promise.set_error(Status::Error(400, "User not found"));
-    }
-  }
-
-  td_->create_handler<EditCloseFriendsQuery>(std::move(promise))->send(std::move(user_ids));
-}
-
-void UserManager::on_set_close_friends(const vector<UserId> &user_ids, Promise<Unit> &&promise) {
-  FlatHashSet<UserId, UserIdHash> close_friend_user_ids;
-  for (auto &user_id : user_ids) {
-    CHECK(user_id.is_valid());
-    close_friend_user_ids.insert(user_id);
-  }
-  users_.foreach([&](const UserId &user_id, unique_ptr<User> &user) {
-    User *u = user.get();
-    if (u->is_contact && u->is_close_friend != (close_friend_user_ids.count(user_id) > 0)) {
-      on_update_user_is_contact(u, user_id, u->is_contact, u->is_mutual_contact, !u->is_close_friend);
-      update_user(u, user_id);
-    }
-  });
-  promise.set_value(Unit());
-}
-
-UserId UserManager::search_user_by_phone_number(string phone_number, bool only_local, Promise<Unit> &&promise) {
-  clean_phone_number(phone_number);
-  if (phone_number.empty()) {
-    promise.set_error(Status::Error(200, "Phone number is invalid"));
-    return UserId();
-  }
-
-  auto it = resolved_phone_numbers_.find(phone_number);
-  if (it != resolved_phone_numbers_.end()) {
-    promise.set_value(Unit());
-    return it->second;
-  }
-
-  if (only_local) {
-    promise.set_value(Unit());
-  } else {
-    td_->create_handler<ResolvePhoneQuery>(std::move(promise))->send(phone_number);
-  }
-  return UserId();
-}
-
-void UserManager::on_resolved_phone_number(const string &phone_number, UserId user_id) {
-  if (!user_id.is_valid()) {
-    resolved_phone_numbers_.emplace(phone_number, UserId());  // negative cache
-    return;
-  }
-
-  auto it = resolved_phone_numbers_.find(phone_number);
-  if (it != resolved_phone_numbers_.end()) {
-    if (it->second != user_id) {
-      LOG(WARNING) << "Resolve phone number \"" << phone_number << "\" to " << user_id << ", but have it in "
-                   << it->second;
-      it->second = user_id;
-    }
-    return;
-  }
-
-  auto *u = get_user(user_id);
-  if (u == nullptr) {
-    LOG(ERROR) << "Resolve phone number \"" << phone_number << "\" to unknown " << user_id;
-  } else if (!u->phone_number.empty()) {
-    LOG(ERROR) << "Resolve phone number \"" << phone_number << "\" to " << user_id << " with phone number "
-               << u->phone_number;
-  } else {
-    // the user's phone number can be hidden by privacy settings, despite the user can be found by the phone number
-  }
-  resolved_phone_numbers_[phone_number] = user_id;  // always update cached value
-}
-
-const UserManager::UserFull *UserManager::get_user_full(UserId user_id) const {
-  return users_full_.get_pointer(user_id);
-}
-
-UserManager::UserFull *UserManager::get_user_full(UserId user_id) {
-  return users_full_.get_pointer(user_id);
-}
-
-UserManager::UserFull *UserManager::add_user_full(UserId user_id) {
-  CHECK(user_id.is_valid());
-  auto &user_full_ptr = users_full_[user_id];
-  if (user_full_ptr == nullptr) {
-    user_full_ptr = make_unique<UserFull>();
-    user_full_contact_price_.erase(user_id);
-  }
-  return user_full_ptr.get();
-}
-
-UserManager::UserFull *UserManager::get_user_full_force(UserId user_id, const char *source) {
-  if (!have_user_force(user_id, source)) {
-    return nullptr;
-  }
-
-  UserFull *user_full = get_user_full(user_id);
-  if (user_full != nullptr) {
-    return user_full;
-  }
-  if (!G()->use_chat_info_database()) {
-    return nullptr;
-  }
-  if (!unavailable_user_fulls_.insert(user_id).second) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load full " << user_id << " from database from " << source;
-  on_load_user_full_from_database(user_id,
-                                  G()->td_db()->get_sqlite_sync_pmc()->get(get_user_full_database_key(user_id)));
-  return get_user_full(user_id);
-}
-
-void UserManager::load_user_full(UserId user_id, bool force, Promise<Unit> &&promise, const char *source) {
-  auto u = get_user(user_id);
-  if (u == nullptr) {
-    return promise.set_error(Status::Error(400, "User not found"));
-  }
-
-  auto user_full = get_user_full_force(user_id, source);
-  if (user_full == nullptr) {
-    TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-    return send_get_user_full_query(user_id, std::move(input_user), std::move(promise), source);
-  }
-  if (user_full->is_expired()) {
-    auto input_user = get_input_user_force(user_id);
-    if (td_->auth_manager_->is_bot() && !force) {
-      return send_get_user_full_query(user_id, std::move(input_user), std::move(promise), "load expired user_full");
-    }
-
-    send_get_user_full_query(user_id, std::move(input_user), Auto(), "load expired user_full");
-  }
-
-  td_->story_manager_->on_view_dialog_active_stories({DialogId(user_id)});
-  promise.set_value(Unit());
-}
-
-void UserManager::reload_user_full(UserId user_id, Promise<Unit> &&promise, const char *source) {
-  TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-  send_get_user_full_query(user_id, std::move(input_user), std::move(promise), source);
-}
-
-void UserManager::send_get_user_full_query(UserId user_id,
-                                           telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-                                           Promise<Unit> &&promise, const char *source) {
-  LOG(INFO) << "Get full " << user_id << " from " << source;
-  if (!user_id.is_valid()) {
-    return promise.set_error(Status::Error(500, "Invalid user_id"));
-  }
-  auto send_query =
-      PromiseCreator::lambda([td = td_, input_user = std::move(input_user)](Result<Promise<Unit>> &&promise) mutable {
-        if (promise.is_ok() && !G()->close_flag()) {
-          td->create_handler<GetFullUserQuery>(promise.move_as_ok())->send(std::move(input_user));
-        }
-      });
-  get_user_full_queries_.add_query(user_id.get(), std::move(send_query), std::move(promise));
-}
-
-void UserManager::on_get_user_full(telegram_api::object_ptr<telegram_api::userFull> &&user) {
-  LOG(INFO) << "Receive " << to_string(user);
-
-  UserId user_id(user->id_);
-  User *u = get_user(user_id);
-  if (u == nullptr) {
-    LOG(ERROR) << "Failed to find " << user_id;
-    return;
-  }
-
-  auto is_bot = is_user_bot(u);
-
-  apply_pending_user_photo(u, user_id, "on_get_user_full");
-
-  td_->messages_manager_->on_update_dialog_notify_settings(DialogId(user_id), std::move(user->notify_settings_),
-                                                           "on_get_user_full");
-
-  td_->messages_manager_->on_update_dialog_background(DialogId(user_id), std::move(user->wallpaper_));
-
-  td_->messages_manager_->on_update_dialog_theme_name(DialogId(user_id), std::move(user->theme_emoticon_));
-
-  td_->messages_manager_->on_update_dialog_last_pinned_message_id(DialogId(user_id),
-                                                                  MessageId(ServerMessageId(user->pinned_msg_id_)));
-
-  td_->messages_manager_->on_update_dialog_folder_id(DialogId(user_id), FolderId(user->folder_id_));
-
-  td_->messages_manager_->on_update_dialog_has_scheduled_server_messages(DialogId(user_id), user->has_scheduled_);
-
-  td_->messages_manager_->on_update_dialog_message_ttl(DialogId(user_id), MessageTtl(user->ttl_period_));
-
-  td_->messages_manager_->on_update_dialog_is_blocked(DialogId(user_id), user->blocked_,
-                                                      user->blocked_my_stories_from_);
-
-  td_->messages_manager_->on_update_dialog_is_translatable(DialogId(user_id), !user->translations_disabled_);
-
-  send_closure_later(td_->story_manager_actor_, &StoryManager::on_get_dialog_stories, DialogId(user_id),
-                     std::move(user->stories_), Promise<Unit>());
-
-  UserFull *user_full = add_user_full(user_id);
-  user_full->expires_at = Time::now() + USER_FULL_EXPIRE_TIME;
-
-  on_update_user_full_is_blocked(user_full, user_id, user->blocked_, user->blocked_my_stories_from_);
-  on_update_user_full_gift_count(user_full, user_id, user->stargifts_count_);
-  on_update_user_full_common_chat_count(user_full, user_id, user->common_chats_count_);
-  on_update_user_full_location(user_full, user_id, DialogLocation(td_, std::move(user->business_location_)));
-  on_update_user_full_work_hours(user_full, user_id, BusinessWorkHours(std::move(user->business_work_hours_)));
-  on_update_user_full_away_message(user_full, user_id, BusinessAwayMessage(std::move(user->business_away_message_)));
-  on_update_user_full_greeting_message(user_full, user_id,
-                                       BusinessGreetingMessage(std::move(user->business_greeting_message_)));
-  on_update_user_full_intro(user_full, user_id, BusinessIntro(td_, std::move(user->business_intro_)));
-  on_update_user_full_need_phone_number_privacy_exception(user_full, user_id,
-                                                          user->settings_->need_contacts_exception_);
-  on_update_user_full_charge_paid_message_stars(
-      user_full, user_id, StarManager::get_star_count(user->settings_->charge_paid_message_stars_));
-  on_update_user_full_send_paid_message_stars(user_full, user_id,
-                                              StarManager::get_star_count(user->send_paid_messages_stars_));
-  on_update_user_full_wallpaper_overridden(user_full, user_id, user->wallpaper_overridden_);
-
-  bool can_pin_messages = user->can_pin_message_;
-  bool can_be_called = user->phone_calls_available_ && !user->phone_calls_private_;
-  bool supports_video_calls = user->video_calls_available_ && !user->phone_calls_private_;
-  bool has_private_calls = user->phone_calls_private_;
-  bool voice_messages_forbidden = u->is_premium ? user->voice_messages_forbidden_ : false;
-  bool has_pinned_stories = user->stories_pinned_available_;
-  auto birthdate = Birthdate(std::move(user->birthday_));
-  auto personal_channel_id = ChannelId(user->personal_channel_id_);
-  auto sponsored_enabled = user->sponsored_enabled_;
-  auto can_view_revenue = user->can_view_revenue_;
-  auto bot_verification = BotVerification::get_bot_verification(std::move(user->bot_verification_));
-  auto gift_settings = StarGiftSettings(user->display_gifts_button_, std::move(user->disallowed_gifts_));
-  if (user_full->can_be_called != can_be_called || user_full->supports_video_calls != supports_video_calls ||
-      user_full->has_private_calls != has_private_calls ||
-      user_full->voice_messages_forbidden != voice_messages_forbidden ||
-      user_full->can_pin_messages != can_pin_messages || user_full->has_pinned_stories != has_pinned_stories ||
-      user_full->sponsored_enabled != sponsored_enabled || user_full->can_view_revenue != can_view_revenue ||
-      user_full->bot_verification != bot_verification || user_full->gift_settings != gift_settings) {
-    user_full->can_be_called = can_be_called;
-    user_full->supports_video_calls = supports_video_calls;
-    user_full->has_private_calls = has_private_calls;
-    user_full->voice_messages_forbidden = voice_messages_forbidden;
-    user_full->can_pin_messages = can_pin_messages;
-    user_full->has_pinned_stories = has_pinned_stories;
-    user_full->sponsored_enabled = sponsored_enabled;
-    user_full->can_view_revenue = can_view_revenue;
-    user_full->bot_verification = std::move(bot_verification);
-    user_full->gift_settings = std::move(gift_settings);
-
-    user_full->is_changed = true;
-  }
-  if (user_full->birthdate != birthdate) {
-    user_full->birthdate = birthdate;
-    user_full->is_changed = true;
-
-    if (u->is_mutual_contact) {
-      reload_contact_birthdates(true);
-    }
-  }
-
-  if (user_full->private_forward_name != user->private_forward_name_) {
-    if (user_full->private_forward_name.empty() != user->private_forward_name_.empty()) {
-      user_full->is_changed = true;
-    }
-    user_full->private_forward_name = std::move(user->private_forward_name_);
-    user_full->need_save_to_database = true;
-  }
-  if (user_full->read_dates_private != user->read_dates_private_ ||
-      user_full->contact_require_premium != user->contact_require_premium_) {
-    user_full->read_dates_private = user->read_dates_private_;
-    user_full->contact_require_premium = user->contact_require_premium_;
-    user_full->need_save_to_database = true;
-  }
-  if (user_full->about != user->about_) {
-    user_full->about = std::move(user->about_);
-    user_full->is_changed = true;
-    td_->group_call_manager_->on_update_dialog_about(DialogId(user_id), user_full->about, true);
-  }
-  if (is_bot && !td_->auth_manager_->is_bot()) {
-    auto *bot_info = user_full->add_bot_info();
-    AdministratorRights group_administrator_rights(user->bot_group_admin_rights_, ChannelType::Megagroup);
-    AdministratorRights broadcast_administrator_rights(user->bot_broadcast_admin_rights_, ChannelType::Broadcast);
-    ReferralProgramInfo referral_program_info;
-    if (user->starref_program_ != nullptr) {
-      auto bot_user_id = UserId(user->starref_program_->bot_id_);
-      if (user_id == bot_user_id) {
-        referral_program_info = ReferralProgramInfo(std::move(user->starref_program_));
-      } else {
-        LOG(ERROR) << "Receive affiliate program for " << bot_user_id << " instead of " << user_id;
-      }
-    }
-    if (bot_info->group_administrator_rights != group_administrator_rights ||
-        bot_info->broadcast_administrator_rights != broadcast_administrator_rights ||
-        bot_info->referral_program_info != referral_program_info) {
-      bot_info->group_administrator_rights = std::move(group_administrator_rights);
-      bot_info->broadcast_administrator_rights = std::move(broadcast_administrator_rights);
-      bot_info->referral_program_info = std::move(referral_program_info);
-
-      user_full->is_changed = true;
-    }
-
-    string description;
-    Photo description_photo;
-    FileId description_animation_file_id;
-    string placeholder_path;
-    int32 background_color = -1;
-    int32 background_dark_color = -1;
-    int32 header_color = -1;
-    int32 header_dark_color = -1;
-    BotVerifierSettings verifier_settings;
-    if (user->bot_info_ != nullptr) {
-      description = std::move(user->bot_info_->description_);
-      description_photo = get_photo(td_, std::move(user->bot_info_->description_photo_), DialogId(user_id));
-      auto document = std::move(user->bot_info_->description_document_);
-      if (document != nullptr) {
-        int32 document_id = document->get_id();
-        if (document_id == telegram_api::document::ID) {
-          auto parsed_document = td_->documents_manager_->on_get_document(
-              move_tl_object_as<telegram_api::document>(document), DialogId(user_id), false);
-          if (parsed_document.type == Document::Type::Animation) {
-            description_animation_file_id = parsed_document.file_id;
-          } else {
-            LOG(ERROR) << "Receive non-animation document in bot description";
-          }
-        }
-      }
-
-      on_update_user_full_commands(user_full, user_id, std::move(user->bot_info_->commands_));
-      on_update_user_full_menu_button(user_full, user_id, std::move(user->bot_info_->menu_button_));
-      on_update_user_full_has_preview_medias(user_full, user_id, user->bot_info_->has_preview_medias_);
-      on_update_user_full_verifier_settings(
-          user_full, user_id,
-          BotVerifierSettings::get_bot_verifier_settings(std::move(user->bot_info_->verifier_settings_)));
-
-      if (bot_info->privacy_policy_url != user->bot_info_->privacy_policy_url_) {
-        bot_info->privacy_policy_url = std::move(user->bot_info_->privacy_policy_url_);
-        user_full->is_changed = true;
-      }
-      if (user->bot_info_->app_settings_ != nullptr) {
-        auto *app_settings = user->bot_info_->app_settings_.get();
-        placeholder_path = app_settings->placeholder_path_.as_slice().str();
-        if ((app_settings->flags_ & telegram_api::botAppSettings::BACKGROUND_COLOR_MASK) != 0) {
-          background_color = app_settings->background_color_;
-        }
-        if ((app_settings->flags_ & telegram_api::botAppSettings::BACKGROUND_DARK_COLOR_MASK) != 0) {
-          background_dark_color = app_settings->background_dark_color_;
-        }
-        if ((app_settings->flags_ & telegram_api::botAppSettings::HEADER_COLOR_MASK) != 0) {
-          header_color = app_settings->header_color_;
-        }
-        if ((app_settings->flags_ & telegram_api::botAppSettings::HEADER_DARK_COLOR_MASK) != 0) {
-          header_dark_color = app_settings->header_dark_color_;
-        }
-      }
-    }
-    if (bot_info->description != description) {
-      bot_info->description = std::move(description);
-      user_full->is_changed = true;
-    }
-    if (bot_info->description_photo != description_photo ||
-        bot_info->description_animation_file_id != description_animation_file_id) {
-      bot_info->description_photo = std::move(description_photo);
-      bot_info->description_animation_file_id = description_animation_file_id;
-      user_full->is_changed = true;
-    }
-    if (bot_info->background_color != background_color || bot_info->background_dark_color != background_dark_color ||
-        bot_info->header_color != header_color || bot_info->header_dark_color != header_dark_color) {
-      bot_info->background_color = background_color;
-      bot_info->background_dark_color = background_dark_color;
-      bot_info->header_color = header_color;
-      bot_info->header_dark_color = header_dark_color;
-      user_full->is_changed = true;
-    }
-    if (bot_info->placeholder_path != placeholder_path) {
-      bot_info->placeholder_path = std::move(placeholder_path);
-      user_full->need_save_to_database = true;
-    }
-  }
-
-  on_update_user_full_can_manage_emoji_status(user_full, user_id, user->bot_can_manage_emoji_status_);
-  if (personal_channel_id != ChannelId() &&
-      td_->chat_manager_->get_channel_type(personal_channel_id) != ChannelType::Broadcast) {
-    LOG(ERROR) << "Receive personal " << personal_channel_id << " of the type "
-               << static_cast<uint8>(td_->chat_manager_->get_channel_type(personal_channel_id));
-    personal_channel_id = ChannelId();
-  }
-  if (user_full->personal_channel_id != personal_channel_id) {
-    user_full->personal_channel_id = personal_channel_id;
-    user_full->is_changed = true;
-  }
-  if (user_full->personal_channel_id != ChannelId()) {
-    auto personal_message_id = MessageId(ServerMessageId(user->personal_channel_message_));
-    td_->messages_manager_->get_channel_difference_if_needed(DialogId(user_full->personal_channel_id),
-                                                             personal_message_id, "on_get_user_full personal chat");
-  }
-
-  auto photo = get_photo(td_, std::move(user->profile_photo_), DialogId(user_id));
-  auto personal_photo = get_photo(td_, std::move(user->personal_photo_), DialogId(user_id));
-  auto fallback_photo = get_photo(td_, std::move(user->fallback_photo_), DialogId(user_id));
-  // do_update_user_photo should be a no-op if server sent consistent data
-  const Photo *photo_ptr = nullptr;
-  bool is_personal = false;
-  if (!personal_photo.is_empty()) {
-    photo_ptr = &personal_photo;
-    is_personal = true;
-  } else if (!photo.is_empty()) {
-    photo_ptr = &photo;
-  } else {
-    photo_ptr = &fallback_photo;
-  }
-  bool is_photo_empty = photo_ptr->is_empty();
-  do_update_user_photo(u, user_id,
-                       as_profile_photo(td_->file_manager_.get(), user_id, u->access_hash, *photo_ptr, is_personal),
-                       false, "on_get_user_full");
-  if (photo != user_full->photo) {
-    user_full->photo = std::move(photo);
-    user_full->is_changed = true;
-  }
-  if (personal_photo != user_full->personal_photo) {
-    user_full->personal_photo = std::move(personal_photo);
-    user_full->is_changed = true;
-  }
-  if (fallback_photo != user_full->fallback_photo) {
-    user_full->fallback_photo = std::move(fallback_photo);
-    user_full->is_changed = true;
-  }
-  if (!user_full->photo.is_empty()) {
-    register_user_photo(u, user_id, user_full->photo);
-  }
-  if (user_id == get_my_id() && !user_full->fallback_photo.is_empty()) {
-    register_suggested_profile_photo(user_full->fallback_photo);
-  }
-  if (is_photo_empty) {
-    drop_user_photos(user_id, true, "on_get_user_full");
-  }
-
-  // User must be updated before UserFull
-  if (u->is_changed) {
-    LOG(ERROR) << "Receive inconsistent chatPhoto and chatPhotoInfo for " << user_id;
-    update_user(u, user_id);
-  }
-
-  user_full->is_update_user_full_sent = true;
-  update_user_full(user_full, user_id, "on_get_user_full");
-
-  // update peer settings after UserFull is created and updated to not update twice
-  // need_phone_number_privacy_exception and charge_paid_message_stars
-  td_->messages_manager_->on_get_peer_settings(DialogId(user_id), std::move(user->settings_));
-}
-
-FileSourceId UserManager::get_user_full_file_source_id(UserId user_id) {
-  if (!user_id.is_valid()) {
-    return FileSourceId();
-  }
-
-  auto user_full = get_user_full(user_id);
-  if (user_full != nullptr) {
-    VLOG(file_references) << "Don't need to create file source for full " << user_id;
-    // user full was already added, source ID was registered and shouldn't be needed
-    return user_full->is_update_user_full_sent ? FileSourceId() : user_full->file_source_id;
-  }
-
-  auto &source_id = user_full_file_source_ids_[user_id];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_user_full_file_source(user_id);
-  }
-  VLOG(file_references) << "Return " << source_id << " for full " << user_id;
-  return source_id;
-}
-
-void UserManager::save_user_full(const UserFull *user_full, UserId user_id) {
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-
-  LOG(INFO) << "Trying to save to database full " << user_id;
-  CHECK(user_full != nullptr);
-  G()->td_db()->get_sqlite_pmc()->set(get_user_full_database_key(user_id), get_user_full_database_value(user_full),
-                                      Auto());
-}
-
-string UserManager::get_user_full_database_key(UserId user_id) {
-  return PSTRING() << "usf" << user_id.get();
-}
-
-string UserManager::get_user_full_database_value(const UserFull *user_full) {
-  return log_event_store(*user_full).as_slice().str();
-}
-
-void UserManager::on_load_user_full_from_database(UserId user_id, string value) {
-  LOG(INFO) << "Successfully loaded full " << user_id << " of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_user_full_database_key(user_id), Auto());
-  //  return;
-
-  if (get_user_full(user_id) != nullptr || value.empty()) {
-    return;
-  }
-
-  UserFull *user_full = add_user_full(user_id);
-  auto status = log_event_parse(*user_full, value);
-  if (status.is_error()) {
-    // can't happen unless database is broken
-    LOG(ERROR) << "Repair broken full " << user_id << ' ' << format::as_hex_dump<4>(Slice(value));
-
-    // just clean all known data about the user and pretend that there was nothing in the database
-    users_full_.erase(user_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_user_full_database_key(user_id), Auto());
-    return;
-  }
-
-  Dependencies dependencies;
-  dependencies.add(user_id);
-  if (user_full->business_info != nullptr) {
-    user_full->business_info->add_dependencies(dependencies);
-  }
-  if (user_full->bot_verification != nullptr) {
-    user_full->bot_verification->add_dependencies(dependencies);
-  }
-  dependencies.add(user_full->personal_channel_id);
-  if (!dependencies.resolve_force(td_, "on_load_user_full_from_database")) {
-    users_full_.erase(user_id);
-    G()->td_db()->get_sqlite_pmc()->erase(get_user_full_database_key(user_id), Auto());
-    return;
-  }
-
-  if (user_full->need_phone_number_privacy_exception && is_user_contact(user_id)) {
-    user_full->need_phone_number_privacy_exception = false;
-  }
-
-  User *u = get_user(user_id);
-  CHECK(u != nullptr);
-  drop_user_full_photos(user_full, user_id, u->photo.id, "on_load_user_full_from_database");
-  if (!user_full->photo.is_empty()) {
-    register_user_photo(u, user_id, user_full->photo);
-  }
-  if (user_id == get_my_id() && !user_full->fallback_photo.is_empty()) {
-    register_suggested_profile_photo(user_full->fallback_photo);
-  }
-
-  td_->group_call_manager_->on_update_dialog_about(DialogId(user_id), user_full->about, false);
-
-  user_full->is_update_user_full_sent = true;
-  update_user_full(user_full, user_id, "on_load_user_full_from_database", true);
-
-  if (is_user_deleted(u)) {
-    drop_user_full(user_id);
-  } else if (user_full->expires_at == 0.0) {
-    reload_user_full(user_id, Auto(), "on_load_user_full_from_database");
-  }
-}
-
-void UserManager::get_web_app_placeholder(UserId user_id, Promise<td_api::object_ptr<td_api::outline>> &&promise) {
-  auto user_full = get_user_full_force(user_id, "get_web_app_placeholder");
-  if (user_full == nullptr || user_full->bot_info == nullptr) {
-    return promise.set_value(nullptr);
-  }
-  promise.set_value(get_outline_object(user_full->bot_info->placeholder_path, 1.0, PSLICE() << "Web App " << user_id));
-}
-
-int64 UserManager::get_user_full_profile_photo_id(const UserFull *user_full) {
-  if (!user_full->personal_photo.is_empty()) {
-    return user_full->personal_photo.id.get();
-  }
-  if (!user_full->photo.is_empty()) {
-    return user_full->photo.id.get();
-  }
-  return user_full->fallback_photo.id.get();
-}
-
-void UserManager::drop_user_full_photos(UserFull *user_full, UserId user_id, int64 expected_photo_id,
-                                        const char *source) {
-  if (user_full == nullptr) {
-    return;
-  }
-  LOG(INFO) << "Expect full photo " << expected_photo_id << " from " << source;
-  for (auto photo_ptr : {&user_full->personal_photo, &user_full->photo, &user_full->fallback_photo}) {
-    if (photo_ptr->is_empty()) {
-      continue;
-    }
-    if (expected_photo_id == 0) {
-      // if profile photo is empty, we must drop the full photo
-      *photo_ptr = Photo();
-      user_full->is_changed = true;
-    } else if (expected_photo_id != photo_ptr->id.get()) {
-      LOG(INFO) << "Drop full photo " << photo_ptr->id.get();
-      // if full profile photo is unknown, we must drop the full photo
-      *photo_ptr = Photo();
-      user_full->is_changed = true;
-    } else {
-      // nothing to drop
-      break;
-    }
-  }
-  if (expected_photo_id != get_user_full_profile_photo_id(user_full)) {
-    user_full->expires_at = 0.0;
-  }
-  if (user_full->is_update_user_full_sent) {
-    update_user_full(user_full, user_id, "drop_user_full_photos");
-  }
-}
-
-void UserManager::drop_user_photos(UserId user_id, bool is_empty, const char *source) {
-  LOG(INFO) << "Drop user photos to " << (is_empty ? "empty" : "unknown") << " from " << source;
-  auto user_photos = user_photos_.get_pointer(user_id);
-  if (user_photos != nullptr) {
-    int32 new_count = is_empty ? 0 : -1;
-    if (user_photos->count == new_count) {
-      CHECK(user_photos->photos.empty());
-      CHECK(user_photos->offset == user_photos->count);
-    } else {
-      LOG(INFO) << "Drop photos of " << user_id << " to " << (is_empty ? "empty" : "unknown") << " from " << source;
-      user_photos->photos.clear();
-      user_photos->count = new_count;
-      user_photos->offset = user_photos->count;
-    }
-  }
-}
-
-void UserManager::drop_user_full(UserId user_id) {
-  auto user_full = get_user_full_force(user_id, "drop_user_full");
-
-  drop_user_photos(user_id, false, "drop_user_full");
-
-  if (user_full == nullptr) {
-    return;
-  }
-
-  user_full->expires_at = 0.0;
-
-  user_full->photo = Photo();
-  user_full->personal_photo = Photo();
-  user_full->fallback_photo = Photo();
-  // user_full->is_blocked = false;
-  // user_full->is_blocked_for_stories = false;
-  user_full->can_be_called = false;
-  user_full->supports_video_calls = false;
-  user_full->has_private_calls = false;
-  user_full->need_phone_number_privacy_exception = false;
-  user_full->wallpaper_overridden = false;
-  user_full->about = string();
-  user_full->bot_info = nullptr;
-  user_full->gift_count = 0;
-  user_full->common_chat_count = 0;
-  user_full->personal_channel_id = ChannelId();
-  user_full->business_info = nullptr;
-  user_full->bot_verification = nullptr;
-  user_full->private_forward_name.clear();
-  user_full->voice_messages_forbidden = false;
-  user_full->has_pinned_stories = false;
-  user_full->read_dates_private = false;
-  user_full->contact_require_premium = false;
-  user_full->birthdate = {};
-  user_full->gift_settings = {};
-  user_full->sponsored_enabled = false;
-  user_full->has_preview_medias = false;
-  user_full->can_view_revenue = false;
-  user_full->can_manage_emoji_status = false;
-  user_full->charge_paid_message_stars = false;
-  user_full->send_paid_message_stars = false;
-  user_full->is_changed = true;
-
-  update_user_full(user_full, user_id, "drop_user_full");
-  td_->group_call_manager_->on_update_dialog_about(DialogId(user_id), user_full->about, true);
-}
-
-bool UserManager::have_secret_chat(SecretChatId secret_chat_id) const {
-  return secret_chats_.count(secret_chat_id) > 0;
-}
-
-const UserManager::SecretChat *UserManager::get_secret_chat(SecretChatId secret_chat_id) const {
-  return secret_chats_.get_pointer(secret_chat_id);
-}
-
-UserManager::SecretChat *UserManager::get_secret_chat(SecretChatId secret_chat_id) {
-  return secret_chats_.get_pointer(secret_chat_id);
-}
-
-UserManager::SecretChat *UserManager::add_secret_chat(SecretChatId secret_chat_id) {
-  CHECK(secret_chat_id.is_valid());
-  auto &secret_chat_ptr = secret_chats_[secret_chat_id];
-  if (secret_chat_ptr == nullptr) {
-    secret_chat_ptr = make_unique<SecretChat>();
-  }
-  return secret_chat_ptr.get();
-}
-
-bool UserManager::have_secret_chat_force(SecretChatId secret_chat_id, const char *source) {
-  return get_secret_chat_force(secret_chat_id, source) != nullptr;
-}
-
-UserManager::SecretChat *UserManager::get_secret_chat_force(SecretChatId secret_chat_id, const char *source) {
-  if (!secret_chat_id.is_valid()) {
-    return nullptr;
-  }
-
-  SecretChat *c = get_secret_chat(secret_chat_id);
-  if (c != nullptr) {
-    if (!have_user_force(c->user_id, source)) {
-      LOG(ERROR) << "Can't find " << c->user_id << " from " << secret_chat_id << " from " << source;
-    }
-    return c;
-  }
-  if (!G()->use_chat_info_database()) {
-    return nullptr;
-  }
-  if (loaded_from_database_secret_chats_.count(secret_chat_id)) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load " << secret_chat_id << " from database from " << source;
-  on_load_secret_chat_from_database(
-      secret_chat_id, G()->td_db()->get_sqlite_sync_pmc()->get(get_secret_chat_database_key(secret_chat_id)), true);
-  return get_secret_chat(secret_chat_id);
-}
-
-bool UserManager::get_secret_chat(SecretChatId secret_chat_id, bool force, Promise<Unit> &&promise) {
-  if (!secret_chat_id.is_valid()) {
-    promise.set_error(Status::Error(400, "Invalid secret chat identifier"));
-    return false;
-  }
-
-  if (!have_secret_chat(secret_chat_id)) {
-    if (!force && G()->use_chat_info_database()) {
-      send_closure_later(actor_id(this), &UserManager::load_secret_chat_from_database, nullptr, secret_chat_id,
-                         std::move(promise));
-      return false;
-    }
-
-    promise.set_error(Status::Error(400, "Secret chat not found"));
-    return false;
-  }
-
-  promise.set_value(Unit());
-  return true;
-}
-
-void UserManager::save_secret_chat(SecretChat *c, SecretChatId secret_chat_id, bool from_binlog) {
-  if (!G()->use_chat_info_database()) {
-    return;
-  }
-  CHECK(c != nullptr);
-  if (!c->is_saved) {
-    if (!from_binlog) {
-      auto log_event = SecretChatLogEvent(secret_chat_id, c);
-      auto storer = get_log_event_storer(log_event);
-      if (c->log_event_id == 0) {
-        c->log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SecretChatInfos, storer);
-      } else {
-        binlog_rewrite(G()->td_db()->get_binlog(), c->log_event_id, LogEvent::HandlerType::SecretChatInfos, storer);
-      }
-    }
-
-    save_secret_chat_to_database(c, secret_chat_id);
-    return;
-  }
-}
-
-string UserManager::get_secret_chat_database_key(SecretChatId secret_chat_id) {
-  return PSTRING() << "sc" << secret_chat_id.get();
-}
-
-string UserManager::get_secret_chat_database_value(const SecretChat *c) {
-  return log_event_store(*c).as_slice().str();
-}
-
-void UserManager::save_secret_chat_to_database(SecretChat *c, SecretChatId secret_chat_id) {
-  CHECK(c != nullptr);
-  if (c->is_being_saved) {
-    return;
-  }
-  if (loaded_from_database_secret_chats_.count(secret_chat_id)) {
-    save_secret_chat_to_database_impl(c, secret_chat_id, get_secret_chat_database_value(c));
-    return;
-  }
-  if (load_secret_chat_from_database_queries_.count(secret_chat_id) != 0) {
-    return;
-  }
-
-  load_secret_chat_from_database_impl(secret_chat_id, Auto());
-}
-
-void UserManager::save_secret_chat_to_database_impl(SecretChat *c, SecretChatId secret_chat_id, string value) {
-  CHECK(c != nullptr);
-  CHECK(load_secret_chat_from_database_queries_.count(secret_chat_id) == 0);
-  CHECK(!c->is_being_saved);
-  c->is_being_saved = true;
-  c->is_saved = true;
-  LOG(INFO) << "Trying to save to database " << secret_chat_id;
-  G()->td_db()->get_sqlite_pmc()->set(get_secret_chat_database_key(secret_chat_id), std::move(value),
-                                      PromiseCreator::lambda([secret_chat_id](Result<> result) {
-                                        send_closure(G()->user_manager(), &UserManager::on_save_secret_chat_to_database,
-                                                     secret_chat_id, result.is_ok());
-                                      }));
-}
-
-void UserManager::on_save_secret_chat_to_database(SecretChatId secret_chat_id, bool success) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  SecretChat *c = get_secret_chat(secret_chat_id);
-  CHECK(c != nullptr);
-  CHECK(c->is_being_saved);
-  CHECK(load_secret_chat_from_database_queries_.count(secret_chat_id) == 0);
-  c->is_being_saved = false;
-
-  if (!success) {
-    LOG(ERROR) << "Failed to save " << secret_chat_id << " to database";
-    c->is_saved = false;
-  } else {
-    LOG(INFO) << "Successfully saved " << secret_chat_id << " to database";
-  }
-  if (c->is_saved) {
-    if (c->log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), c->log_event_id);
-      c->log_event_id = 0;
-    }
-  } else {
-    save_secret_chat(c, secret_chat_id, c->log_event_id != 0);
-  }
-}
-
-void UserManager::load_secret_chat_from_database(SecretChat *c, SecretChatId secret_chat_id, Promise<Unit> promise) {
-  if (loaded_from_database_secret_chats_.count(secret_chat_id)) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  CHECK(c == nullptr || !c->is_being_saved);
-  load_secret_chat_from_database_impl(secret_chat_id, std::move(promise));
-}
-
-void UserManager::load_secret_chat_from_database_impl(SecretChatId secret_chat_id, Promise<Unit> promise) {
-  LOG(INFO) << "Load " << secret_chat_id << " from database";
-  auto &load_secret_chat_queries = load_secret_chat_from_database_queries_[secret_chat_id];
-  load_secret_chat_queries.push_back(std::move(promise));
-  if (load_secret_chat_queries.size() == 1u) {
-    G()->td_db()->get_sqlite_pmc()->get(
-        get_secret_chat_database_key(secret_chat_id), PromiseCreator::lambda([secret_chat_id](string value) {
-          send_closure(G()->user_manager(), &UserManager::on_load_secret_chat_from_database, secret_chat_id,
-                       std::move(value), false);
-        }));
-  }
-}
-
-void UserManager::on_load_secret_chat_from_database(SecretChatId secret_chat_id, string value, bool force) {
-  if (G()->close_flag() && !force) {
-    // the secret chat is in Binlog and will be saved after restart
-    return;
-  }
-
-  CHECK(secret_chat_id.is_valid());
-  if (!loaded_from_database_secret_chats_.insert(secret_chat_id).second) {
-    return;
-  }
-
-  auto it = load_secret_chat_from_database_queries_.find(secret_chat_id);
-  vector<Promise<Unit>> promises;
-  if (it != load_secret_chat_from_database_queries_.end()) {
-    promises = std::move(it->second);
-    CHECK(!promises.empty());
-    load_secret_chat_from_database_queries_.erase(it);
-  }
-
-  LOG(INFO) << "Successfully loaded " << secret_chat_id << " of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_secret_chat_database_key(secret_chat_id), Auto());
-  //  return;
-
-  SecretChat *c = get_secret_chat(secret_chat_id);
-  if (c == nullptr) {
-    if (!value.empty()) {
-      c = add_secret_chat(secret_chat_id);
-
-      if (log_event_parse(*c, value).is_error()) {
-        LOG(ERROR) << "Failed to load " << secret_chat_id << " from database";
-        secret_chats_.erase(secret_chat_id);
-      } else {
-        c->is_saved = true;
-        update_secret_chat(c, secret_chat_id, true, true);
-      }
-    }
-  } else {
-    CHECK(!c->is_saved);  // secret chat can't be saved before load completes
-    CHECK(!c->is_being_saved);
-    auto new_value = get_secret_chat_database_value(c);
-    if (value != new_value) {
-      save_secret_chat_to_database_impl(c, secret_chat_id, std::move(new_value));
-    } else if (c->log_event_id != 0) {
-      binlog_erase(G()->td_db()->get_binlog(), c->log_event_id);
-      c->log_event_id = 0;
-    }
-  }
-
-  // TODO load users asynchronously
-  if (c != nullptr && !have_user_force(c->user_id, "on_load_secret_chat_from_database")) {
-    LOG(ERROR) << "Can't find " << c->user_id << " from " << secret_chat_id;
-  }
-
-  set_promises(promises);
-}
-
-void UserManager::create_new_secret_chat(UserId user_id, Promise<td_api::object_ptr<td_api::chat>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, get_input_user(user_id));
-  if (input_user->get_id() != telegram_api::inputUser::ID) {
-    return promise.set_error(Status::Error(400, "Can't create secret chat with the user"));
-  }
-  auto user = static_cast<const telegram_api::inputUser *>(input_user.get());
-
-  send_closure(
-      G()->secret_chats_manager(), &SecretChatsManager::create_chat, UserId(user->user_id_), user->access_hash_,
-      PromiseCreator::lambda(
-          [actor_id = actor_id(this), promise = std::move(promise)](Result<SecretChatId> r_secret_chat_id) mutable {
-            if (r_secret_chat_id.is_error()) {
-              return promise.set_error(r_secret_chat_id.move_as_error());
-            }
-            send_closure(actor_id, &UserManager::on_create_new_secret_chat, r_secret_chat_id.ok(), std::move(promise));
-          }));
-}
-
-void UserManager::on_create_new_secret_chat(SecretChatId secret_chat_id,
-                                            Promise<td_api::object_ptr<td_api::chat>> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(secret_chat_id.is_valid());
-  DialogId dialog_id(secret_chat_id);
-  td_->dialog_manager_->force_create_dialog(dialog_id, "on_create_new_secret_chat");
-  promise.set_value(td_->messages_manager_->get_chat_object(dialog_id, "on_create_new_secret_chat"));
-}
-
-void UserManager::update_user(User *u, UserId user_id, bool from_binlog, bool from_database) {
-  CHECK(u != nullptr);
-
-  if (u->is_being_updated) {
-    LOG(ERROR) << "Detected recursive update of " << user_id;
-  }
-  u->is_being_updated = true;
-  SCOPE_EXIT {
-    u->is_being_updated = false;
-  };
-
-  if (user_id == get_my_id()) {
-    if (td_->option_manager_->get_option_boolean("is_premium") != u->is_premium) {
-      td_->option_manager_->set_option_boolean("is_premium", u->is_premium);
-      send_closure(td_->config_manager_, &ConfigManager::request_config, true);
-      if (!td_->auth_manager_->is_bot()) {
-        td_->reaction_manager_->reload_reaction_list(ReactionListType::Top, "update_user is_premium");
-        td_->messages_manager_->update_is_translatable(u->is_premium);
-      }
-    }
-  }
-  if (u->is_name_changed || u->is_username_changed || u->is_is_contact_changed) {
-    update_contacts_hints(u, user_id, from_database);
-    u->is_username_changed = false;
-  }
-  if (u->is_is_contact_changed) {
-    td_->messages_manager_->on_dialog_user_is_contact_updated(DialogId(user_id), u->is_contact);
-    send_closure_later(td_->story_manager_actor_, &StoryManager::on_dialog_active_stories_order_updated,
-                       DialogId(user_id), "update_user is_contact");
-    if (is_user_contact(u, user_id, false)) {
-      auto user_full = get_user_full(user_id);
-      if (user_full != nullptr && user_full->need_phone_number_privacy_exception) {
-        on_update_user_full_need_phone_number_privacy_exception(user_full, user_id, false);
-        update_user_full(user_full, user_id, "update_user");
-      }
-    }
-    u->is_is_contact_changed = false;
-  }
-  if (u->is_is_mutual_contact_changed) {
-    if (!from_database && u->is_update_user_sent) {
-      send_closure_later(td_->story_manager_actor_, &StoryManager::reload_dialog_expiring_stories, DialogId(user_id));
-    }
-    u->is_is_mutual_contact_changed = false;
-  }
-  if (u->is_is_deleted_changed) {
-    td_->messages_manager_->on_dialog_user_is_deleted_updated(DialogId(user_id), u->is_deleted);
-    if (u->is_deleted) {
-      auto user_full = get_user_full(user_id);  // must not load user_full from database before sending updateUser
-      if (user_full != nullptr) {
-        u->is_full_info_changed = false;
-        drop_user_full(user_id);
-      }
-    }
-    u->is_is_deleted_changed = false;
-  }
-  if (u->is_is_premium_changed) {
-    send_closure_later(td_->story_manager_actor_, &StoryManager::on_dialog_active_stories_order_updated,
-                       DialogId(user_id), "update_user is_premium");
-    u->is_is_premium_changed = false;
-  }
-  if (u->is_name_changed) {
-    auto messages_manager = td_->messages_manager_.get();
-    messages_manager->on_dialog_title_updated(DialogId(user_id));
-    for_each_secret_chat_with_user(user_id, [messages_manager](SecretChatId secret_chat_id) {
-      messages_manager->on_dialog_title_updated(DialogId(secret_chat_id));
-    });
-    u->is_name_changed = false;
-  }
-  if (u->is_photo_changed) {
-    auto messages_manager = td_->messages_manager_.get();
-    messages_manager->on_dialog_photo_updated(DialogId(user_id));
-    for_each_secret_chat_with_user(user_id, [messages_manager](SecretChatId secret_chat_id) {
-      messages_manager->on_dialog_photo_updated(DialogId(secret_chat_id));
-    });
-    u->is_photo_changed = false;
-  }
-  if (u->is_accent_color_changed) {
-    auto messages_manager = td_->messages_manager_.get();
-    messages_manager->on_dialog_accent_colors_updated(DialogId(user_id));
-    for_each_secret_chat_with_user(user_id, [messages_manager](SecretChatId secret_chat_id) {
-      messages_manager->on_dialog_accent_colors_updated(DialogId(secret_chat_id));
-    });
-    u->is_accent_color_changed = false;
-  }
-  if (u->is_phone_number_changed) {
-    if (!u->phone_number.empty() && !td_->auth_manager_->is_bot()) {
-      resolved_phone_numbers_[u->phone_number] = user_id;
-    }
-    u->is_phone_number_changed = false;
-  }
-  auto unix_time = G()->unix_time();
-  if (u->is_status_changed && user_id != get_my_id()) {
-    auto left_time = get_user_was_online(u, user_id, unix_time) - G()->server_time();
-    if (left_time >= 0 && left_time < 30 * 86400) {
-      left_time += 2.0;  // to guarantee expiration
-      LOG(DEBUG) << "Set online timeout for " << user_id << " in " << left_time << " seconds";
-      user_online_timeout_.set_timeout_in(user_id.get(), left_time);
-    } else {
-      LOG(DEBUG) << "Cancel online timeout for " << user_id;
-      user_online_timeout_.cancel_timeout(user_id.get());
-    }
-  }
-  if (u->is_stories_hidden_changed) {
-    send_closure_later(td_->story_manager_actor_, &StoryManager::on_dialog_active_stories_order_updated,
-                       DialogId(user_id), "update_user stories_hidden");
-    u->is_stories_hidden_changed = false;
-  }
-  if (!td_->auth_manager_->is_bot()) {
-    if (u->restriction_reasons.empty()) {
-      restricted_user_ids_.erase(user_id);
-    } else {
-      restricted_user_ids_.insert(user_id);
-    }
-  }
-
-  auto effective_emoji_status = EmojiStatus::get_effective_emoji_status(u->emoji_status, u->is_premium, unix_time);
-  if (effective_emoji_status != u->last_sent_emoji_status) {
-    if (u->last_sent_emoji_status != nullptr) {
-      user_emoji_status_timeout_.cancel_timeout(user_id.get());
-    }
-    u->last_sent_emoji_status = std::move(effective_emoji_status);
-    if (u->last_sent_emoji_status != nullptr) {
-      auto until_date = u->last_sent_emoji_status->get_until_date();
-      auto left_time = until_date - unix_time;
-      if (left_time >= 0 && left_time < 30 * 86400) {
-        user_emoji_status_timeout_.set_timeout_in(user_id.get(), left_time);
-      }
-    }
-    u->is_changed = true;
-
-    auto messages_manager = td_->messages_manager_.get();
-    messages_manager->on_dialog_emoji_status_updated(DialogId(user_id));
-    for_each_secret_chat_with_user(user_id, [messages_manager](SecretChatId secret_chat_id) {
-      messages_manager->on_dialog_emoji_status_updated(DialogId(secret_chat_id));
-    });
-    u->is_emoji_status_changed = false;
-  } else if (u->is_emoji_status_changed) {
-    LOG(DEBUG) << "Emoji status for " << user_id << " has changed";
-    u->need_save_to_database = true;
-    u->is_emoji_status_changed = false;
-  }
-
-  if (u->is_deleted) {
-    td_->inline_queries_manager_->remove_recent_inline_bot(user_id, Promise<>());
-  }
-  if (from_binlog || from_database) {
-    td_->dialog_manager_->on_dialog_usernames_received(DialogId(user_id), u->usernames, true);
-  }
-
-  LOG(DEBUG) << "Update " << user_id << ": need_save_to_database = " << u->need_save_to_database
-             << ", is_changed = " << u->is_changed << ", is_status_changed = " << u->is_status_changed
-             << ", from_binlog = " << from_binlog << ", from_database = " << from_database;
-  u->need_save_to_database |= u->is_changed;
-  if (u->need_save_to_database) {
-    if (!from_database) {
-      u->is_saved = false;
-    }
-    u->need_save_to_database = false;
-  }
-  if (u->is_changed) {
-    send_closure(G()->td(), &Td::send_update, get_update_user_object(user_id, u));
-    u->is_changed = false;
-    u->is_status_changed = false;
-    u->is_update_user_sent = true;
-  }
-  if (u->is_status_changed) {
-    if (!from_database) {
-      u->is_status_saved = false;
-    }
-    CHECK(u->is_update_user_sent);
-    send_closure(
-        G()->td(), &Td::send_update,
-        td_api::make_object<td_api::updateUserStatus>(user_id.get(), get_user_status_object(user_id, u, unix_time)));
-    u->is_status_changed = false;
-  }
-  if (u->is_online_status_changed) {
-    td_->dialog_participant_manager_->update_user_online_member_count(user_id);
-    u->is_online_status_changed = false;
-  }
-
-  if (!from_database) {
-    save_user(u, user_id, from_binlog);
-  }
-
-  if (u->cache_version != User::CACHE_VERSION && !u->is_repaired &&
-      have_input_peer_user(u, user_id, AccessRights::Read) && !G()->close_flag()) {
-    u->is_repaired = true;
-
-    LOG(INFO) << "Repairing cache of " << user_id;
-    reload_user(user_id, Promise<Unit>(), "update_user");
-  }
-
-  if (u->is_full_info_changed) {
-    u->is_full_info_changed = false;
-    auto user_full = get_user_full(user_id);
-    if (user_full != nullptr) {
-      user_full->need_send_update = true;
-      update_user_full(user_full, user_id, "update_user is_full_info_changed");
-      reload_user_full(user_id, Promise<Unit>(), "update_user");
-    }
-  }
-}
-
-void UserManager::update_secret_chat(SecretChat *c, SecretChatId secret_chat_id, bool from_binlog, bool from_database) {
-  CHECK(c != nullptr);
-
-  if (c->is_being_updated) {
-    LOG(ERROR) << "Detected recursive update of " << secret_chat_id;
-  }
-  c->is_being_updated = true;
-  SCOPE_EXIT {
-    c->is_being_updated = false;
-  };
-
-  LOG(DEBUG) << "Update " << secret_chat_id << ": need_save_to_database = " << c->need_save_to_database
-             << ", is_changed = " << c->is_changed;
-  c->need_save_to_database |= c->is_changed;
-  if (c->need_save_to_database) {
-    if (!from_database) {
-      c->is_saved = false;
-    }
-    c->need_save_to_database = false;
-
-    DialogId dialog_id(secret_chat_id);
-    send_closure_later(G()->messages_manager(), &MessagesManager::force_create_dialog, dialog_id, "update secret chat",
-                       true, true);
-    if (c->is_state_changed) {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_update_secret_chat_state, secret_chat_id,
-                         c->state);
-      c->is_state_changed = false;
-    }
-    if (c->is_ttl_changed) {
-      send_closure_later(G()->messages_manager(), &MessagesManager::on_update_dialog_message_ttl,
-                         DialogId(secret_chat_id), MessageTtl(c->ttl));
-      c->is_ttl_changed = false;
-    }
-  }
-  if (c->is_changed) {
-    send_closure(G()->td(), &Td::send_update, get_update_secret_chat_object(secret_chat_id, c));
-    c->is_changed = false;
-  }
-
-  if (!from_database) {
-    save_secret_chat(c, secret_chat_id, from_binlog);
-  }
-}
-
-void UserManager::update_user_full(UserFull *user_full, UserId user_id, const char *source, bool from_database) {
-  CHECK(user_full != nullptr);
-
-  if (user_full->is_being_updated) {
-    LOG(ERROR) << "Detected recursive update of full " << user_id << " from " << source;
-  }
-  user_full->is_being_updated = true;
-  SCOPE_EXIT {
-    user_full->is_being_updated = false;
-  };
-
-  unavailable_user_fulls_.erase(user_id);  // don't needed anymore
-  if (user_full->is_common_chat_count_changed) {
-    td_->common_dialog_manager_->drop_common_dialogs_cache(user_id);
-    user_full->is_common_chat_count_changed = false;
-  }
-  if (true) {
-    vector<FileId> file_ids;
-    if (!user_full->personal_photo.is_empty()) {
-      append(file_ids, photo_get_file_ids(user_full->personal_photo));
-    }
-    if (!user_full->fallback_photo.is_empty()) {
-      append(file_ids, photo_get_file_ids(user_full->fallback_photo));
-    }
-    if (user_full->bot_info != nullptr) {
-      if (!user_full->bot_info->description_photo.is_empty()) {
-        append(file_ids, photo_get_file_ids(user_full->bot_info->description_photo));
-      }
-      if (user_full->bot_info->description_animation_file_id.is_valid()) {
-        file_ids.push_back(user_full->bot_info->description_animation_file_id);
-      }
-    }
-    if (user_full->business_info != nullptr) {
-      append(file_ids, user_full->business_info->get_file_ids(td_));
-    }
-    if (user_full->registered_file_ids != file_ids) {
-      auto &file_source_id = user_full->file_source_id;
-      if (!file_source_id.is_valid()) {
-        file_source_id = user_full_file_source_ids_.get(user_id);
-        if (file_source_id.is_valid()) {
-          VLOG(file_references) << "Move " << file_source_id << " inside of " << user_id;
-          user_full_file_source_ids_.erase(user_id);
-        } else {
-          VLOG(file_references) << "Need to create new file source for full " << user_id;
-          file_source_id = td_->file_reference_manager_->create_user_full_file_source(user_id);
-        }
-      }
-
-      td_->file_manager_->change_files_source(file_source_id, user_full->registered_file_ids, file_ids,
-                                              "update_user_full");
-      user_full->registered_file_ids = std::move(file_ids);
-    }
-  }
-
-  user_full->need_send_update |= user_full->is_changed;
-  user_full->need_save_to_database |= user_full->is_changed;
-  user_full->is_changed = false;
-  if (user_full->need_send_update || user_full->need_save_to_database) {
-    LOG(INFO) << "Update full " << user_id << " from " << source;
-  }
-  if (user_full->need_send_update) {
-    {
-      auto u = get_user(user_id);
-      CHECK(u == nullptr || u->is_update_user_sent);
-    }
-    if (!user_full->is_update_user_full_sent) {
-      LOG(ERROR) << "Send partial updateUserFullInfo for " << user_id << " from " << source;
-      user_full->is_update_user_full_sent = true;
-    }
-    send_closure(G()->td(), &Td::send_update,
-                 td_api::make_object<td_api::updateUserFullInfo>(get_user_id_object(user_id, "updateUserFullInfo"),
-                                                                 get_user_full_info_object(user_id, user_full)));
-    user_full->need_send_update = false;
-
-    if (user_id == get_my_id() && !user_full->birthdate.is_empty() && !td_->auth_manager_->is_bot()) {
-      dismiss_suggested_action(SuggestedAction{SuggestedAction::Type::BirthdaySetup}, Promise<Unit>());
-    }
-  }
-  if (user_full->need_save_to_database) {
-    if (!from_database) {
-      save_user_full(user_full, user_id);
-    }
-    user_full->need_save_to_database = false;
-  }
-}
-
-td_api::object_ptr<td_api::UserStatus> UserManager::get_user_status_object(UserId user_id, const User *u,
-                                                                           int32 unix_time) const {
-  if (u->is_bot) {
-    return td_api::make_object<td_api::userStatusOnline>(std::numeric_limits<int32>::max());
-  }
-
-  int32 was_online = get_user_was_online(u, user_id, unix_time);
-  switch (was_online) {
-    case -6:
-    case -3:
-      return td_api::make_object<td_api::userStatusLastMonth>(was_online == -6);
-    case -5:
-    case -2:
-      return td_api::make_object<td_api::userStatusLastWeek>(was_online == -5);
-    case -4:
-    case -1:
-      return td_api::make_object<td_api::userStatusRecently>(was_online == -4);
-    case 0:
-      return td_api::make_object<td_api::userStatusEmpty>();
-    default: {
-      int32 time = G()->unix_time();
-      if (was_online > time) {
-        return td_api::make_object<td_api::userStatusOnline>(was_online);
-      } else {
-        return td_api::make_object<td_api::userStatusOffline>(was_online);
-      }
-    }
-  }
-}
-
-bool UserManager::get_user_has_unread_stories(const User *u) {
-  CHECK(u != nullptr);
-  return u->max_active_story_id.get() > u->max_read_story_id.get();
-}
-
-td_api::object_ptr<td_api::updateUser> UserManager::get_update_user_object(UserId user_id, const User *u) const {
-  if (u == nullptr) {
-    return get_update_unknown_user_object(user_id);
-  }
-  return td_api::make_object<td_api::updateUser>(get_user_object(user_id, u));
-}
-
-td_api::object_ptr<td_api::updateUser> UserManager::get_update_unknown_user_object(UserId user_id) const {
-  auto have_access = user_id == get_my_id() || user_messages_.count(user_id) != 0;
-  return td_api::make_object<td_api::updateUser>(td_api::make_object<td_api::user>(
-      user_id.get(), "", "", nullptr, "", td_api::make_object<td_api::userStatusEmpty>(), nullptr,
-      td_->theme_manager_->get_accent_color_id_object(AccentColorId(user_id)), 0, -1, 0, nullptr, false, false, false,
-      nullptr, false, false, "", false, false, false, 0, have_access, td_api::make_object<td_api::userTypeUnknown>(),
-      "", false));
-}
-
-int64 UserManager::get_user_id_object(UserId user_id, const char *source) const {
-  if (user_id.is_valid() && get_user(user_id) == nullptr && unknown_users_.count(user_id) == 0) {
-    if (source != nullptr) {
-      LOG(ERROR) << "Have no information about " << user_id << " from " << source;
-    }
-    unknown_users_.insert(user_id);
-    send_closure(G()->td(), &Td::send_update, get_update_unknown_user_object(user_id));
-
-    if (user_id == my_id_) {
-      send_get_me_query(td_, Promise<Unit>());
-    }
-  }
-  return user_id.get();
-}
-
-void UserManager::get_user_id_object_async(UserId user_id, Promise<int64> &&promise) {
-  promise.set_value(get_user_id_object(user_id, "get_user_id_object_async"));
-}
-
-td_api::object_ptr<td_api::user> UserManager::get_user_object(UserId user_id) const {
-  return get_user_object(user_id, get_user(user_id));
-}
-
-td_api::object_ptr<td_api::user> UserManager::get_user_object(UserId user_id, const User *u) const {
-  if (u == nullptr) {
-    return nullptr;
-  }
-  td_api::object_ptr<td_api::UserType> type;
-  if (u->is_deleted) {
-    type = td_api::make_object<td_api::userTypeDeleted>();
-  } else if (u->is_bot) {
-    type = td_api::make_object<td_api::userTypeBot>(
-        u->can_be_edited_bot, u->can_join_groups, u->can_read_all_group_messages, u->has_main_app, u->is_inline_bot,
-        u->inline_query_placeholder, u->need_location_bot, u->is_business_bot, u->can_be_added_to_attach_menu,
-        u->bot_active_users);
-  } else {
-    type = td_api::make_object<td_api::userTypeRegular>();
-  }
-
-  auto emoji_status = EmojiStatus::get_emoji_status_object(u->last_sent_emoji_status);
-  auto verification_status =
-      get_verification_status_object(td_, u->is_verified, u->is_scam, u->is_fake, u->bot_verification_icon);
-  auto have_access = user_id == get_my_id() || have_input_peer_user(u, user_id, AccessRights::Know);
-  auto restricts_new_chats = u->contact_require_premium && !u->is_mutual_contact;
-  return td_api::make_object<td_api::user>(
-      user_id.get(), u->first_name, u->last_name, u->usernames.get_usernames_object(), u->phone_number,
-      get_user_status_object(user_id, u, G()->unix_time()),
-      get_profile_photo_object(td_->file_manager_.get(), u->photo),
-      td_->theme_manager_->get_accent_color_id_object(u->accent_color_id, AccentColorId(user_id)),
-      u->background_custom_emoji_id.get(),
-      td_->theme_manager_->get_profile_accent_color_id_object(u->profile_accent_color_id),
-      u->profile_background_custom_emoji_id.get(), std::move(emoji_status), u->is_contact, u->is_mutual_contact,
-      u->is_close_friend, std::move(verification_status), u->is_premium, u->is_support,
-      get_restriction_reason_description(u->restriction_reasons), u->max_active_story_id.is_valid(),
-      get_user_has_unread_stories(u), restricts_new_chats, u->paid_message_star_count, have_access, std::move(type),
-      u->language_code, u->attach_menu_enabled);
-}
-
-vector<int64> UserManager::get_user_ids_object(const vector<UserId> &user_ids, const char *source) const {
-  return transform(user_ids, [this, source](UserId user_id) { return get_user_id_object(user_id, source); });
-}
-
-td_api::object_ptr<td_api::users> UserManager::get_users_object(int32 total_count,
-                                                                const vector<UserId> &user_ids) const {
-  if (total_count == -1) {
-    total_count = narrow_cast<int32>(user_ids.size());
-  }
-  return td_api::make_object<td_api::users>(total_count, get_user_ids_object(user_ids, "get_users_object"));
-}
-
-td_api::object_ptr<td_api::userFullInfo> UserManager::get_user_full_info_object(UserId user_id) const {
-  return get_user_full_info_object(user_id, get_user_full(user_id));
-}
-
-td_api::object_ptr<td_api::userFullInfo> UserManager::get_user_full_info_object(UserId user_id,
-                                                                                const UserFull *user_full) const {
-  CHECK(user_full != nullptr);
-  td_api::object_ptr<td_api::botInfo> bot_info;
-  const User *u = get_user(user_id);
-  bool is_bot = is_user_bot(u);
-  bool is_premium = is_user_premium(u);
-  td_api::object_ptr<td_api::formattedText> bio_object;
-  if (is_bot) {
-    if (user_full->bot_info == nullptr) {
-      bot_info = td_api::make_object<td_api::botInfo>(
-          user_full->about, string(), nullptr, nullptr, nullptr, Auto(), string(), nullptr, nullptr, nullptr, -1, -1,
-          -1, -1, nullptr, user_full->can_view_revenue, user_full->can_manage_emoji_status,
-          user_full->has_preview_medias, nullptr, nullptr, nullptr, nullptr);
-    } else {
-      const auto *user_bot_info = user_full->bot_info.get();
-      auto menu_button = get_bot_menu_button_object(td_, user_bot_info->menu_button.get());
-      auto commands =
-          transform(user_bot_info->commands, [](const auto &command) { return command.get_bot_command_object(); });
-      bot_info = td_api::make_object<td_api::botInfo>(
-          user_full->about, user_bot_info->description,
-          get_photo_object(td_->file_manager_.get(), user_bot_info->description_photo),
-          td_->animations_manager_->get_animation_object(user_bot_info->description_animation_file_id),
-          std::move(menu_button), std::move(commands), user_bot_info->privacy_policy_url,
-          user_bot_info->group_administrator_rights == AdministratorRights()
-              ? nullptr
-              : user_bot_info->group_administrator_rights.get_chat_administrator_rights_object(),
-          user_bot_info->broadcast_administrator_rights == AdministratorRights()
-              ? nullptr
-              : user_bot_info->broadcast_administrator_rights.get_chat_administrator_rights_object(),
-          user_bot_info->referral_program_info.get_affiliate_program_info_object(), user_bot_info->background_color,
-          user_bot_info->background_dark_color, user_bot_info->header_color, user_bot_info->header_dark_color,
-          user_bot_info->verifier_settings == nullptr
-              ? nullptr
-              : user_bot_info->verifier_settings->get_bot_verification_parameters_object(td_),
-          user_full->can_view_revenue, user_full->can_manage_emoji_status, user_full->has_preview_medias, nullptr,
-          nullptr, nullptr, nullptr);
-    }
-    if (u != nullptr && u->can_be_edited_bot && u->usernames.has_editable_username()) {
-      auto bot_username = u->usernames.get_editable_username();
-      bot_info->edit_commands_link_ = td_api::make_object<td_api::internalLinkTypeBotStart>(
-          "botfather", PSTRING() << bot_username << "-commands", true);
-      bot_info->edit_description_link_ = td_api::make_object<td_api::internalLinkTypeBotStart>(
-          "botfather", PSTRING() << bot_username << "-intro", true);
-      bot_info->edit_description_media_link_ = td_api::make_object<td_api::internalLinkTypeBotStart>(
-          "botfather", PSTRING() << bot_username << "-intropic", true);
-      bot_info->edit_settings_link_ =
-          td_api::make_object<td_api::internalLinkTypeBotStart>("botfather", bot_username, true);
-    }
-  } else {
-    FormattedText bio;
-    bio.text = user_full->about;
-    bio.entities = find_entities(bio.text, true, true);
-    if (!is_premium) {
-      td::remove_if(bio.entities, [&](const MessageEntity &entity) {
-        if (entity.type == MessageEntity::Type::EmailAddress) {
-          return true;
-        }
-        if (entity.type == MessageEntity::Type::Url &&
-            !LinkManager::is_internal_link(utf8_utf16_substr(bio.text, entity.offset, entity.length))) {
-          return true;
-        }
-        return false;
-      });
-    }
-    bio_object = get_formatted_text_object(this, bio, true, 0);
-  }
-  auto voice_messages_forbidden = is_premium ? user_full->voice_messages_forbidden : false;
-  auto block_list_id = BlockListId(user_full->is_blocked, user_full->is_blocked_for_stories);
-  auto business_info = is_premium && user_full->business_info != nullptr
-                           ? user_full->business_info->get_business_info_object(td_)
-                           : nullptr;
-  int64 personal_chat_id = 0;
-  if (user_full->personal_channel_id.is_valid()) {
-    DialogId dialog_id(user_full->personal_channel_id);
-    td_->dialog_manager_->force_create_dialog(dialog_id, "get_user_full_info_object", true);
-    personal_chat_id = td_->dialog_manager_->get_chat_id_object(dialog_id, "get_user_full_info_object");
-  }
-  auto bot_verification =
-      user_full->bot_verification == nullptr ? nullptr : user_full->bot_verification->get_bot_verification_object(td_);
-  return td_api::make_object<td_api::userFullInfo>(
-      get_chat_photo_object(td_->file_manager_.get(), user_full->personal_photo),
-      get_chat_photo_object(td_->file_manager_.get(), user_full->photo),
-      get_chat_photo_object(td_->file_manager_.get(), user_full->fallback_photo), block_list_id.get_block_list_object(),
-      user_full->can_be_called, user_full->supports_video_calls, user_full->has_private_calls,
-      !user_full->private_forward_name.empty(), voice_messages_forbidden, user_full->has_pinned_stories,
-      user_full->sponsored_enabled, user_full->need_phone_number_privacy_exception, user_full->wallpaper_overridden,
-      std::move(bio_object), user_full->birthdate.get_birthdate_object(), personal_chat_id, user_full->gift_count,
-      user_full->common_chat_count, user_full->charge_paid_message_stars, user_full->send_paid_message_stars,
-      user_full->gift_settings.get_gift_settings_object(), std::move(bot_verification), std::move(business_info),
-      std::move(bot_info));
-}
-
-td_api::object_ptr<td_api::updateContactCloseBirthdays> UserManager::get_update_contact_close_birthdays() const {
-  return td_api::make_object<td_api::updateContactCloseBirthdays>(
-      transform(contact_birthdates_.users_, [this](const std::pair<UserId, Birthdate> &user) {
-        return td_api::make_object<td_api::closeBirthdayUser>(get_user_id_object(user.first, "closeBirthdayUser"),
-                                                              user.second.get_birthdate_object());
-      }));
-}
-
-td_api::object_ptr<td_api::SecretChatState> UserManager::get_secret_chat_state_object(SecretChatState state) {
-  switch (state) {
-    case SecretChatState::Waiting:
-      return td_api::make_object<td_api::secretChatStatePending>();
-    case SecretChatState::Active:
-      return td_api::make_object<td_api::secretChatStateReady>();
-    case SecretChatState::Closed:
-    case SecretChatState::Unknown:
-      return td_api::make_object<td_api::secretChatStateClosed>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-td_api::object_ptr<td_api::updateSecretChat> UserManager::get_update_secret_chat_object(SecretChatId secret_chat_id,
-                                                                                        const SecretChat *secret_chat) {
-  if (secret_chat == nullptr) {
-    return get_update_unknown_secret_chat_object(secret_chat_id);
-  }
-  return td_api::make_object<td_api::updateSecretChat>(get_secret_chat_object(secret_chat_id, secret_chat));
-}
-
-td_api::object_ptr<td_api::updateSecretChat> UserManager::get_update_unknown_secret_chat_object(
-    SecretChatId secret_chat_id) {
-  return td_api::make_object<td_api::updateSecretChat>(td_api::make_object<td_api::secretChat>(
-      secret_chat_id.get(), 0, get_secret_chat_state_object(SecretChatState::Unknown), false, string(), 0));
-}
-
-int32 UserManager::get_secret_chat_id_object(SecretChatId secret_chat_id, const char *source) const {
-  if (secret_chat_id.is_valid() && get_secret_chat(secret_chat_id) == nullptr &&
-      unknown_secret_chats_.count(secret_chat_id) == 0) {
-    LOG(ERROR) << "Have no information about " << secret_chat_id << " from " << source;
-    unknown_secret_chats_.insert(secret_chat_id);
-    send_closure(G()->td(), &Td::send_update, get_update_unknown_secret_chat_object(secret_chat_id));
-  }
-  return secret_chat_id.get();
-}
-
-td_api::object_ptr<td_api::secretChat> UserManager::get_secret_chat_object(SecretChatId secret_chat_id) {
-  return get_secret_chat_object(secret_chat_id, get_secret_chat(secret_chat_id));
-}
-
-td_api::object_ptr<td_api::secretChat> UserManager::get_secret_chat_object(SecretChatId secret_chat_id,
-                                                                           const SecretChat *secret_chat) {
-  if (secret_chat == nullptr) {
-    return nullptr;
-  }
-  get_user_force(secret_chat->user_id, "get_secret_chat_object");
-  return get_secret_chat_object_const(secret_chat_id, secret_chat);
-}
-
-td_api::object_ptr<td_api::secretChat> UserManager::get_secret_chat_object_const(SecretChatId secret_chat_id,
-                                                                                 const SecretChat *secret_chat) const {
-  return td_api::make_object<td_api::secretChat>(secret_chat_id.get(),
-                                                 get_user_id_object(secret_chat->user_id, "secretChat"),
-                                                 get_secret_chat_state_object(secret_chat->state),
-                                                 secret_chat->is_outbound, secret_chat->key_hash, secret_chat->layer);
-}
-
-void UserManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
-  for (auto user_id : unknown_users_) {
-    if (!have_min_user(user_id)) {
-      updates.push_back(get_update_unknown_user_object(user_id));
-    }
-  }
-  for (auto secret_chat_id : unknown_secret_chats_) {
-    if (!have_secret_chat(secret_chat_id)) {
-      updates.push_back(get_update_unknown_secret_chat_object(secret_chat_id));
-    }
-  }
-
-  users_.foreach([&](const UserId &user_id, const unique_ptr<User> &user) {
-    updates.push_back(get_update_user_object(user_id, user.get()));
-  });
-  // secret chat objects contain user_id, so they must be sent after users
-  secret_chats_.foreach([&](const SecretChatId &secret_chat_id, const unique_ptr<SecretChat> &secret_chat) {
-    updates.push_back(
-        td_api::make_object<td_api::updateSecretChat>(get_secret_chat_object_const(secret_chat_id, secret_chat.get())));
-  });
-
-  users_full_.foreach([&](const UserId &user_id, const unique_ptr<UserFull> &user_full) {
-    updates.push_back(td_api::make_object<td_api::updateUserFullInfo>(
-        user_id.get(), get_user_full_info_object(user_id, user_full.get())));
-  });
-
-  if (!contact_birthdates_.users_.empty()) {
-    updates.push_back(get_update_contact_close_birthdays());
-  }
-
-  if (freeze_since_date_ > 0) {
-    updates.push_back(get_update_freeze_state_object());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserManager.h b/third-party/td/td/td/telegram/UserManager.h
deleted file mode 100644
index 4c771840aa..0000000000
--- a/third-party/td/td/td/telegram/UserManager.h
+++ /dev/null
@@ -1,1193 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/Birthdate.h"
-#include "td/telegram/BotCommand.h"
-#include "td/telegram/BotMenuButton.h"
-#include "td/telegram/BotVerifierSettings.h"
-#include "td/telegram/BusinessConnectionId.h"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/Contact.h"
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogLocation.h"
-#include "td/telegram/DialogParticipant.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/QueryCombiner.h"
-#include "td/telegram/QueryMerger.h"
-#include "td/telegram/ReferralProgramInfo.h"
-#include "td/telegram/RestrictionReason.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/StarGiftSettings.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/Usernames.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiPromise.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Hints.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeHashSet.h"
-
-#include <functional>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-struct BinlogEvent;
-class BotVerification;
-class BusinessAwayMessage;
-class BusinessGreetingMessage;
-class BusinessInfo;
-class BusinessIntro;
-class BusinessWorkHours;
-class EmojiStatus;
-class Td;
-
-class UserManager final : public Actor {
- public:
-  UserManager(Td *td, ActorShared<> parent);
-  UserManager(const UserManager &) = delete;
-  UserManager &operator=(const UserManager &) = delete;
-  UserManager(UserManager &&) = delete;
-  UserManager &operator=(UserManager &&) = delete;
-  ~UserManager() final;
-
-  static UserId get_user_id(const telegram_api::object_ptr<telegram_api::User> &user);
-
-  vector<UserId> get_user_ids(vector<telegram_api::object_ptr<telegram_api::User>> &&users, const char *source);
-
-  static UserId load_my_id();
-
-  UserId get_my_id() const;
-
-  static UserId get_service_notifications_user_id();
-
-  UserId add_service_notifications_user();
-
-  static UserId get_replies_bot_user_id();
-
-  static UserId get_verification_codes_bot_user_id();
-
-  static UserId get_anonymous_bot_user_id();
-
-  static UserId get_channel_bot_user_id();
-
-  static UserId get_anti_spam_bot_user_id();
-
-  UserId add_anonymous_bot_user();
-
-  UserId add_channel_bot_user();
-
-  struct MyOnlineStatusInfo {
-    bool is_online_local = false;
-    bool is_online_remote = false;
-    int32 was_online_local = 0;
-    int32 was_online_remote = 0;
-  };
-  MyOnlineStatusInfo get_my_online_status() const;
-
-  void set_my_online_status(bool is_online, bool send_update, bool is_local);
-
-  void on_get_user(telegram_api::object_ptr<telegram_api::User> &&user, const char *source);
-
-  void on_get_users(vector<telegram_api::object_ptr<telegram_api::User>> &&users, const char *source);
-
-  void on_binlog_user_event(BinlogEvent &&event);
-
-  void on_binlog_secret_chat_event(BinlogEvent &&event);
-
-  void on_update_user_name(UserId user_id, string &&first_name, string &&last_name);
-
-  void on_update_user_usernames(UserId user_id, Usernames &&usernames);
-
-  void on_update_user_phone_number(UserId user_id, string &&phone_number);
-
-  void register_suggested_profile_photo(const Photo &photo);
-
-  void on_update_user_emoji_status(UserId user_id, telegram_api::object_ptr<telegram_api::EmojiStatus> &&emoji_status);
-
-  void on_update_user_story_ids(UserId user_id, StoryId max_active_story_id, StoryId max_read_story_id);
-
-  void on_update_user_max_read_story_id(UserId user_id, StoryId max_read_story_id);
-
-  void on_update_user_stories_hidden(UserId user_id, bool stories_hidden);
-
-  void on_update_user_online(UserId user_id, telegram_api::object_ptr<telegram_api::UserStatus> &&status);
-
-  void on_update_user_local_was_online(UserId user_id, int32 local_was_online);
-
-  // use on_update_dialog_is_blocked instead
-  void on_update_user_is_blocked(UserId user_id, bool is_blocked, bool is_blocked_for_stories);
-
-  void on_update_user_has_pinned_stories(UserId user_id, bool has_pinned_stories);
-
-  void on_update_user_common_chat_count(UserId user_id, int32 common_chat_count);
-
-  void on_update_user_gift_count(UserId user_id, int32 gift_count);
-
-  void on_update_my_gift_count(int32 added_gift_count);
-
-  void on_update_my_user_gift_settings(StarGiftSettings &&gift_settings, Promise<Unit> &&promise);
-
-  void on_update_my_user_location(DialogLocation &&location);
-
-  void on_update_my_user_work_hours(BusinessWorkHours &&work_hours);
-
-  void on_update_my_user_away_message(BusinessAwayMessage &&away_message);
-
-  void on_update_my_user_greeting_message(BusinessGreetingMessage &&greeting_message);
-
-  void on_update_my_user_intro(BusinessIntro &&intro);
-
-  void on_update_user_commands(UserId user_id,
-                               vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands);
-
-  void on_update_user_referral_program_info(UserId user_id, ReferralProgramInfo &&referral_program_info);
-
-  void on_update_user_verifier_settings(UserId user_id, unique_ptr<BotVerifierSettings> &&verifier_settings);
-
-  void on_update_user_need_phone_number_privacy_exception(UserId user_id, bool need_phone_number_privacy_exception);
-
-  void on_update_user_charge_paid_message_stars(UserId user_id, int64 charge_paid_message_stars);
-
-  void on_update_user_wallpaper_overridden(UserId user_id, bool wallpaper_overridden);
-
-  void on_update_bot_menu_button(UserId bot_user_id,
-                                 telegram_api::object_ptr<telegram_api::BotMenuButton> &&bot_menu_button);
-
-  void on_update_bot_has_preview_medias(UserId bot_user_id, bool has_preview_medias);
-
-  void on_update_bot_can_manage_emoji_status(UserId bot_user_id, bool can_manage_emoji_status);
-
-  void on_update_secret_chat(SecretChatId secret_chat_id, int64 access_hash, UserId user_id, SecretChatState state,
-                             bool is_outbound, int32 ttl, int32 date, string key_hash, int32 layer,
-                             FolderId initial_folder_id);
-
-  void on_update_online_status_privacy();
-
-  void on_update_phone_number_privacy();
-
-  void on_ignored_restriction_reasons_changed();
-
-  void on_update_freeze_state(int32 freeze_since_date, int32 freeze_until_date, string freeze_appeal_url);
-
-  void invalidate_user_full(UserId user_id);
-
-  bool have_user(UserId user_id) const;
-
-  bool have_min_user(UserId user_id) const;
-
-  bool have_user_force(UserId user_id, const char *source);
-
-  static void send_get_me_query(Td *td, Promise<Unit> &&promise);
-
-  UserId get_me(Promise<Unit> &&promise);
-
-  bool get_user(UserId user_id, int left_tries, Promise<Unit> &&promise);
-
-  void reload_user(UserId user_id, Promise<Unit> &&promise, const char *source);
-
-  Result<telegram_api::object_ptr<telegram_api::InputUser>> get_input_user(UserId user_id) const;
-
-  telegram_api::object_ptr<telegram_api::InputUser> get_input_user_force(UserId user_id) const;
-
-  bool have_input_peer_user(UserId user_id, AccessRights access_rights) const;
-
-  telegram_api::object_ptr<telegram_api::InputPeer> get_input_peer_user(UserId user_id,
-                                                                        AccessRights access_rights) const;
-
-  bool have_input_encrypted_peer(SecretChatId secret_chat_id, AccessRights access_rights) const;
-
-  telegram_api::object_ptr<telegram_api::inputEncryptedChat> get_input_encrypted_chat(SecretChatId secret_chat_id,
-                                                                                      AccessRights access_rights) const;
-
-  bool is_user_contact(UserId user_id, bool is_mutual = false) const;
-
-  bool is_user_premium(UserId user_id) const;
-
-  bool is_user_deleted(UserId user_id) const;
-
-  bool is_user_support(UserId user_id) const;
-
-  bool is_user_bot(UserId user_id) const;
-
-  struct BotData {
-    string username;
-    bool can_be_edited;
-    bool can_join_groups;
-    bool can_read_all_group_messages;
-    bool has_main_app;
-    bool is_inline;
-    bool is_business;
-    bool need_location;
-    bool can_be_added_to_attach_menu;
-  };
-  Result<BotData> get_bot_data(UserId user_id) const TD_WARN_UNUSED_RESULT;
-
-  bool is_user_online(UserId user_id, int32 tolerance = 0, int32 unix_time = 0) const;
-
-  int32 get_user_was_online(UserId user_id, int32 unix_time = 0) const;
-
-  bool is_user_status_exact(UserId user_id) const;
-
-  bool is_user_received_from_server(UserId user_id) const;
-
-  bool can_report_user(UserId user_id) const;
-
-  const DialogPhoto *get_user_dialog_photo(UserId user_id);
-
-  const DialogPhoto *get_secret_chat_dialog_photo(SecretChatId secret_chat_id);
-
-  int32 get_user_accent_color_id_object(UserId user_id) const;
-
-  int32 get_secret_chat_accent_color_id_object(SecretChatId secret_chat_id) const;
-
-  CustomEmojiId get_user_background_custom_emoji_id(UserId user_id) const;
-
-  CustomEmojiId get_secret_chat_background_custom_emoji_id(SecretChatId secret_chat_id) const;
-
-  int32 get_user_profile_accent_color_id_object(UserId user_id) const;
-
-  int32 get_secret_chat_profile_accent_color_id_object(SecretChatId secret_chat_id) const;
-
-  CustomEmojiId get_user_profile_background_custom_emoji_id(UserId user_id) const;
-
-  CustomEmojiId get_secret_chat_profile_background_custom_emoji_id(SecretChatId secret_chat_id) const;
-
-  string get_user_title(UserId user_id) const;
-
-  string get_secret_chat_title(SecretChatId secret_chat_id) const;
-
-  RestrictedRights get_user_default_permissions(UserId user_id) const;
-
-  RestrictedRights get_secret_chat_default_permissions(SecretChatId secret_chat_id) const;
-
-  td_api::object_ptr<td_api::emojiStatus> get_user_emoji_status_object(UserId user_id) const;
-
-  td_api::object_ptr<td_api::emojiStatus> get_secret_chat_emoji_status_object(SecretChatId secret_chat_id) const;
-
-  bool get_user_stories_hidden(UserId user_id) const;
-
-  bool can_poll_user_active_stories(UserId user_id) const;
-
-  string get_user_about(UserId user_id);
-
-  string get_secret_chat_about(SecretChatId secret_chat_id);
-
-  string get_user_private_forward_name(UserId user_id);
-
-  bool get_user_voice_messages_forbidden(UserId user_id) const;
-
-  bool get_my_sponsored_enabled() const;
-
-  bool get_user_read_dates_private(UserId user_id);
-
-  string get_user_search_text(UserId user_id) const;
-
-  void for_each_secret_chat_with_user(UserId user_id, const std::function<void(SecretChatId)> &f);
-
-  string get_user_first_username(UserId user_id) const;
-
-  int32 get_secret_chat_date(SecretChatId secret_chat_id) const;
-
-  int32 get_secret_chat_ttl(SecretChatId secret_chat_id) const;
-
-  UserId get_secret_chat_user_id(SecretChatId secret_chat_id) const;
-
-  bool get_secret_chat_is_outbound(SecretChatId secret_chat_id) const;
-
-  SecretChatState get_secret_chat_state(SecretChatId secret_chat_id) const;
-
-  int32 get_secret_chat_layer(SecretChatId secret_chat_id) const;
-
-  FolderId get_secret_chat_initial_folder_id(SecretChatId secret_chat_id) const;
-
-  vector<BotCommands> get_bot_commands(vector<telegram_api::object_ptr<telegram_api::botInfo>> &&bot_infos,
-                                       const vector<DialogParticipant> *participants);
-
-  void set_name(const string &first_name, const string &last_name, Promise<Unit> &&promise);
-
-  void set_bio(const string &bio, Promise<Unit> &&promise);
-
-  void on_update_profile_success(int32 flags, const string &first_name, const string &last_name, const string &about);
-
-  FileId get_profile_photo_file_id(int64 photo_id) const;
-
-  void set_bot_profile_photo(UserId bot_user_id, const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                             Promise<Unit> &&promise);
-
-  void set_business_profile_photo(BusinessConnectionId business_connection_id,
-                                  const td_api::object_ptr<td_api::InputChatPhoto> &input_photo, bool is_fallback,
-                                  Promise<Unit> &&promise);
-
-  void set_profile_photo(const td_api::object_ptr<td_api::InputChatPhoto> &input_photo, bool is_fallback,
-                         Promise<Unit> &&promise);
-
-  void set_user_profile_photo(UserId user_id, const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                              bool only_suggest, Promise<Unit> &&promise);
-
-  void send_update_profile_photo_query(UserId user_id, FileId file_id, int64 old_photo_id, bool is_fallback,
-                                       Promise<Unit> &&promise);
-
-  void on_set_profile_photo(UserId user_id, telegram_api::object_ptr<telegram_api::photos_photo> &&photo,
-                            bool is_fallback, int64 old_photo_id, Promise<Unit> &&promise);
-
-  void delete_profile_photo(int64 profile_photo_id, bool is_recursive, Promise<Unit> &&promise);
-
-  void on_delete_profile_photo(int64 profile_photo_id, Promise<Unit> promise);
-
-  void toggle_user_can_manage_emoji_status(UserId user_id, bool can_manage_emoji_status, Promise<Unit> &&promise);
-
-  void set_user_emoji_status(UserId user_id, const unique_ptr<EmojiStatus> &emoji_status, Promise<Unit> &&promise);
-
-  void on_set_user_emoji_status(UserId user_id, unique_ptr<EmojiStatus> emoji_status, Promise<Unit> &&promise);
-
-  void set_username(const string &username, Promise<Unit> &&promise);
-
-  void toggle_username_is_active(string &&username, bool is_active, Promise<Unit> &&promise);
-
-  void reorder_usernames(vector<string> &&usernames, Promise<Unit> &&promise);
-
-  void toggle_bot_username_is_active(UserId bot_user_id, string &&username, bool is_active, Promise<Unit> &&promise);
-
-  void reorder_bot_usernames(UserId bot_user_id, vector<string> &&usernames, Promise<Unit> &&promise);
-
-  void on_update_username_is_active(UserId user_id, string &&username, bool is_active, Promise<Unit> &&promise);
-
-  void on_update_active_usernames_order(UserId user_id, vector<string> &&usernames, Promise<Unit> &&promise);
-
-  void set_accent_color(AccentColorId accent_color_id, CustomEmojiId background_custom_emoji_id,
-                        Promise<Unit> &&promise);
-
-  void set_profile_accent_color(AccentColorId accent_color_id, CustomEmojiId background_custom_emoji_id,
-                                Promise<Unit> &&promise);
-
-  void on_update_accent_color_success(bool for_profile, AccentColorId accent_color_id,
-                                      CustomEmojiId background_custom_emoji_id);
-
-  void set_birthdate(Birthdate &&birthdate, Promise<Unit> &&promise);
-
-  void set_personal_channel(DialogId dialog_id, Promise<Unit> &&promise);
-
-  void set_emoji_status(const unique_ptr<EmojiStatus> &emoji_status, Promise<Unit> &&promise);
-
-  void toggle_sponsored_messages(bool sponsored_enabled, Promise<Unit> &&promise);
-
-  void get_support_user(Promise<td_api::object_ptr<td_api::user>> &&promise);
-
-  void get_user_profile_photos(UserId user_id, int32 offset, int32 limit,
-                               Promise<td_api::object_ptr<td_api::chatPhotos>> &&promise);
-
-  void reload_user_profile_photo(UserId user_id, int64 photo_id, Promise<Unit> &&promise);
-
-  FileSourceId get_user_profile_photo_file_source_id(UserId user_id, int64 photo_id);
-
-  void on_get_user_photos(UserId user_id, int32 offset, int32 limit, int32 total_count,
-                          vector<telegram_api::object_ptr<telegram_api::Photo>> photos);
-
-  void register_message_users(MessageFullId message_full_id, vector<UserId> user_ids);
-
-  void unregister_message_users(MessageFullId message_full_id, vector<UserId> user_ids);
-
-  void can_send_message_to_user(UserId user_id, bool force,
-                                Promise<td_api::object_ptr<td_api::CanSendMessageToUserResult>> &&promise);
-
-  void on_get_is_premium_required_to_contact_users(
-      vector<UserId> &&user_ids, vector<telegram_api::object_ptr<telegram_api::RequirementToContact>> &&requirements,
-      Promise<Unit> &&promise);
-
-  void allow_send_message_to_user(UserId user_id);
-
-  void share_phone_number(UserId user_id, Promise<Unit> &&promise);
-
-  void reload_contacts(bool force);
-
-  void on_get_contacts(telegram_api::object_ptr<telegram_api::contacts_Contacts> &&new_contacts);
-
-  void on_get_contacts_failed(Status error);
-
-  void on_get_contacts_statuses(vector<telegram_api::object_ptr<telegram_api::contactStatus>> &&statuses);
-
-  void add_contact(Contact contact, bool share_phone_number, Promise<Unit> &&promise);
-
-  std::pair<vector<UserId>, vector<int32>> import_contacts(const vector<Contact> &contacts, int64 &random_id,
-                                                           Promise<Unit> &&promise);
-
-  void on_imported_contacts(int64 random_id,
-                            Result<telegram_api::object_ptr<telegram_api::contacts_importedContacts>> result);
-
-  void remove_contacts(const vector<UserId> &user_ids, Promise<Unit> &&promise);
-
-  void remove_contacts_by_phone_number(vector<string> user_phone_numbers, vector<UserId> user_ids,
-                                       Promise<Unit> &&promise);
-
-  void on_deleted_contacts(const vector<UserId> &deleted_contact_user_ids);
-
-  int32 get_imported_contact_count(Promise<Unit> &&promise);
-
-  std::pair<vector<UserId>, vector<int32>> change_imported_contacts(vector<Contact> &contacts, int64 &random_id,
-                                                                    Promise<Unit> &&promise);
-
-  void clear_imported_contacts(Promise<Unit> &&promise);
-
-  void on_update_contacts_reset();
-
-  std::pair<int32, vector<UserId>> search_contacts(const string &query, int32 limit, Promise<Unit> &&promise);
-
-  void reload_contact_birthdates(bool force);
-
-  void on_get_contact_birthdates(telegram_api::object_ptr<telegram_api::contacts_contactBirthdays> &&birthdays);
-
-  void hide_contact_birthdays(Promise<Unit> &&promise);
-
-  vector<UserId> get_close_friends(Promise<Unit> &&promise);
-
-  void set_close_friends(vector<UserId> user_ids, Promise<Unit> &&promise);
-
-  void on_set_close_friends(const vector<UserId> &user_ids, Promise<Unit> &&promise);
-
-  UserId search_user_by_phone_number(string phone_number, bool only_local, Promise<Unit> &&promise);
-
-  void on_resolved_phone_number(const string &phone_number, UserId user_id);
-
-  void load_user_full(UserId user_id, bool force, Promise<Unit> &&promise, const char *source);
-
-  void reload_user_full(UserId user_id, Promise<Unit> &&promise, const char *source);
-
-  void on_get_user_full(telegram_api::object_ptr<telegram_api::userFull> &&user);
-
-  FileSourceId get_user_full_file_source_id(UserId user_id);
-
-  void get_web_app_placeholder(UserId user_id, Promise<td_api::object_ptr<td_api::outline>> &&promise);
-
-  bool have_secret_chat(SecretChatId secret_chat_id) const;
-
-  bool have_secret_chat_force(SecretChatId secret_chat_id, const char *source);
-
-  bool get_secret_chat(SecretChatId secret_chat_id, bool force, Promise<Unit> &&promise);
-
-  void create_new_secret_chat(UserId user_id, Promise<td_api::object_ptr<td_api::chat>> &&promise);
-
-  int64 get_user_id_object(UserId user_id, const char *source) const;
-
-  void get_user_id_object_async(UserId user_id, Promise<int64> &&promise);
-
-  td_api::object_ptr<td_api::user> get_user_object(UserId user_id) const;
-
-  vector<int64> get_user_ids_object(const vector<UserId> &user_ids, const char *source) const;
-
-  td_api::object_ptr<td_api::users> get_users_object(int32 total_count, const vector<UserId> &user_ids) const;
-
-  td_api::object_ptr<td_api::userFullInfo> get_user_full_info_object(UserId user_id) const;
-
-  int32 get_secret_chat_id_object(SecretChatId secret_chat_id, const char *source) const;
-
-  td_api::object_ptr<td_api::secretChat> get_secret_chat_object(SecretChatId secret_chat_id);
-
-  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
-
- private:
-  struct User {
-    string first_name;
-    string last_name;
-    Usernames usernames;
-    string phone_number;
-    int64 access_hash = -1;
-    unique_ptr<EmojiStatus> emoji_status;
-    unique_ptr<EmojiStatus> last_sent_emoji_status;
-
-    ProfilePhoto photo;
-
-    vector<RestrictionReason> restriction_reasons;
-    string inline_query_placeholder;
-    int32 bot_active_users = 0;
-    int32 bot_info_version = -1;
-
-    CustomEmojiId bot_verification_icon;
-
-    AccentColorId accent_color_id;
-    CustomEmojiId background_custom_emoji_id;
-    AccentColorId profile_accent_color_id;
-    CustomEmojiId profile_background_custom_emoji_id;
-
-    int32 was_online = 0;
-    int32 local_was_online = 0;
-
-    double max_active_story_id_next_reload_time = 0.0;
-    StoryId max_active_story_id;
-    StoryId max_read_story_id;
-
-    int64 paid_message_star_count = 0;
-
-    string language_code;
-
-    FlatHashSet<int64> photo_ids;
-
-    static constexpr uint32 CACHE_VERSION = 4;
-    uint32 cache_version = 0;
-
-    bool is_min_access_hash = true;
-    bool is_received = false;
-    bool is_verified = false;
-    bool is_premium = false;
-    bool is_support = false;
-    bool is_deleted = true;
-    bool is_bot = true;
-    bool can_join_groups = true;
-    bool can_read_all_group_messages = true;
-    bool can_be_edited_bot = false;
-    bool has_main_app = false;
-    bool is_inline_bot = false;
-    bool is_business_bot = false;
-    bool need_location_bot = false;
-    bool is_scam = false;
-    bool is_fake = false;
-    bool is_contact = false;
-    bool is_mutual_contact = false;
-    bool is_close_friend = false;
-    bool need_apply_min_photo = false;
-    bool can_be_added_to_attach_menu = false;
-    bool attach_menu_enabled = false;
-    bool stories_hidden = false;
-    bool contact_require_premium = false;
-
-    bool is_photo_inited = false;
-
-    bool is_repaired = false;  // whether cached value is rechecked
-
-    bool is_name_changed = true;
-    bool is_username_changed = true;
-    bool is_photo_changed = true;
-    bool is_accent_color_changed = true;
-    bool is_phone_number_changed = true;
-    bool is_emoji_status_changed = true;
-    bool is_is_contact_changed = true;
-    bool is_is_mutual_contact_changed = true;
-    bool is_is_deleted_changed = true;
-    bool is_is_premium_changed = true;
-    bool is_stories_hidden_changed = true;
-    bool is_full_info_changed = false;
-    bool is_being_updated = false;
-    bool is_changed = true;             // have new changes that need to be sent to the client and database
-    bool need_save_to_database = true;  // have new changes that need only to be saved to the database
-    bool is_status_changed = true;
-    bool is_online_status_changed = true;  // whether online/offline has changed
-    bool is_update_user_sent = false;
-
-    bool is_saved = false;         // is current user version being saved/is saved to the database
-    bool is_being_saved = false;   // is current user being saved to the database
-    bool is_status_saved = false;  // is current user status being saved/is saved to the database
-
-    bool is_received_from_server = false;  // true, if the user was received from the server and not the database
-
-    uint64 log_event_id = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct BotInfo {
-    string description;
-    Photo description_photo;
-    FileId description_animation_file_id;
-
-    unique_ptr<BotMenuButton> menu_button;
-    vector<BotCommand> commands;
-    string privacy_policy_url;
-    AdministratorRights group_administrator_rights;
-    AdministratorRights broadcast_administrator_rights;
-    ReferralProgramInfo referral_program_info;
-    unique_ptr<BotVerifierSettings> verifier_settings;
-
-    string placeholder_path;
-    int32 background_color = -1;
-    int32 background_dark_color = -1;
-    int32 header_color = -1;
-    int32 header_dark_color = -1;
-  };
-
-  // do not forget to update drop_user_full and on_get_user_full
-  struct UserFull {
-    Photo photo;
-    Photo fallback_photo;
-    Photo personal_photo;
-
-    string about;
-    string private_forward_name;
-    vector<FileId> registered_file_ids;
-    FileSourceId file_source_id;
-
-    int32 gift_count = 0;
-    int32 common_chat_count = 0;
-    Birthdate birthdate;
-    StarGiftSettings gift_settings;
-
-    ChannelId personal_channel_id;
-
-    unique_ptr<BotInfo> bot_info;
-    unique_ptr<BusinessInfo> business_info;
-    unique_ptr<BotVerification> bot_verification;
-
-    int64 charge_paid_message_stars = 0;
-    int64 send_paid_message_stars = 0;
-
-    bool is_blocked = false;
-    bool is_blocked_for_stories = false;
-    bool can_be_called = false;
-    bool supports_video_calls = false;
-    bool has_private_calls = false;
-    bool can_pin_messages = true;
-    bool need_phone_number_privacy_exception = false;
-    bool wallpaper_overridden = false;
-    bool voice_messages_forbidden = false;
-    bool has_pinned_stories = false;
-    bool read_dates_private = false;
-    bool contact_require_premium = false;
-    bool sponsored_enabled = false;
-    bool has_preview_medias = false;
-    bool can_view_revenue = false;
-    bool can_manage_emoji_status = false;
-
-    bool is_common_chat_count_changed = true;
-    bool is_being_updated = false;
-    bool is_changed = true;             // have new changes that need to be sent to the client and database
-    bool need_send_update = true;       // have new changes that need only to be sent to the client
-    bool need_save_to_database = true;  // have new changes that need only to be saved to the database
-    bool is_update_user_full_sent = false;
-
-    double expires_at = 0.0;
-
-    bool is_expired() const {
-      return expires_at < Time::now();
-    }
-
-    BotInfo *add_bot_info() {
-      if (bot_info == nullptr) {
-        bot_info = make_unique<BotInfo>();
-      }
-      return bot_info.get();
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct SecretChat {
-    int64 access_hash = 0;
-    UserId user_id;
-    SecretChatState state = SecretChatState::Unknown;
-    string key_hash;
-    int32 ttl = 0;
-    int32 date = 0;
-    int32 layer = 0;
-    FolderId initial_folder_id;
-
-    bool is_outbound = false;
-
-    bool is_ttl_changed = true;
-    bool is_state_changed = true;
-    bool is_being_updated = false;
-    bool is_changed = true;             // have new changes that need to be sent to the client and database
-    bool need_save_to_database = true;  // have new changes that need only to be saved to the database
-
-    bool is_saved = false;        // is current secret chat version being saved/is saved to the database
-    bool is_being_saved = false;  // is current secret chat being saved to the database
-
-    uint64 log_event_id = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  struct PendingGetPhotoRequest {
-    int32 offset = 0;
-    int32 limit = 0;
-    int32 retry_count = 0;
-    Promise<td_api::object_ptr<td_api::chatPhotos>> promise;
-  };
-
-  struct UserPhotos {
-    vector<Photo> photos;
-    int32 count = -1;
-    int32 offset = -1;
-
-    vector<PendingGetPhotoRequest> pending_requests;
-  };
-
-  class UserLogEvent;
-  class SecretChatLogEvent;
-
-  static constexpr int32 MAX_GET_PROFILE_PHOTOS = 100;  // server side limit
-  static constexpr size_t MAX_NAME_LENGTH = 64;         // server side limit for first/last name
-
-  static constexpr int32 MAX_ACTIVE_STORY_ID_RELOAD_TIME = 3600;  // some reasonable limit
-
-  static constexpr int32 USER_FULL_EXPIRE_TIME = 60;
-
-  static constexpr int32 ACCOUNT_UPDATE_FIRST_NAME = 1 << 0;
-  static constexpr int32 ACCOUNT_UPDATE_LAST_NAME = 1 << 1;
-  static constexpr int32 ACCOUNT_UPDATE_ABOUT = 1 << 2;
-
-  void tear_down() final;
-
-  static void on_user_online_timeout_callback(void *user_manager_ptr, int64 user_id_long);
-
-  void on_user_online_timeout(UserId user_id);
-
-  static void on_user_emoji_status_timeout_callback(void *user_manager_ptr, int64 user_id_long);
-
-  void on_user_emoji_status_timeout(UserId user_id);
-
-  void set_my_id(UserId my_id);
-
-  const User *get_user(UserId user_id) const;
-
-  User *get_user(UserId user_id);
-
-  User *add_user(UserId user_id);
-
-  void save_user(User *u, UserId user_id, bool from_binlog);
-
-  static string get_user_database_key(UserId user_id);
-
-  static string get_user_database_value(const User *u);
-
-  void save_user_to_database(User *u, UserId user_id);
-
-  void save_user_to_database_impl(User *u, UserId user_id, string value);
-
-  void on_save_user_to_database(UserId user_id, bool success);
-
-  void load_user_from_database(User *u, UserId user_id, Promise<Unit> promise);
-
-  void load_user_from_database_impl(UserId user_id, Promise<Unit> promise);
-
-  void on_load_user_from_database(UserId user_id, string value, bool force);
-
-  User *get_user_force(UserId user_id, const char *source);
-
-  User *get_user_force_impl(UserId user_id, const char *source);
-
-  bool is_user_contact(const User *u, UserId user_id, bool is_mutual) const;
-
-  static bool is_user_premium(const User *u);
-
-  static bool is_user_deleted(const User *u);
-
-  static bool is_user_support(const User *u);
-
-  static bool is_user_bot(const User *u);
-
-  int32 get_user_was_online(const User *u, UserId user_id, int32 unix_time) const;
-
-  void on_update_user_name(User *u, UserId user_id, string &&first_name, string &&last_name);
-
-  void on_update_user_usernames(User *u, UserId user_id, Usernames &&usernames);
-
-  void on_update_user_phone_number(User *u, UserId user_id, string &&phone_number);
-
-  void on_update_user_photo(User *u, UserId user_id, telegram_api::object_ptr<telegram_api::UserProfilePhoto> &&photo,
-                            const char *source);
-
-  void do_update_user_photo(User *u, UserId user_id, telegram_api::object_ptr<telegram_api::UserProfilePhoto> &&photo,
-                            const char *source);
-
-  void do_update_user_photo(User *u, UserId user_id, ProfilePhoto &&new_photo, bool invalidate_photo_cache,
-                            const char *source);
-
-  void register_user_photo(User *u, UserId user_id, const Photo &photo);
-
-  void on_update_user_accent_color_id(User *u, UserId user_id, AccentColorId accent_color_id);
-
-  void on_update_user_background_custom_emoji_id(User *u, UserId user_id, CustomEmojiId background_custom_emoji_id);
-
-  void on_update_user_profile_accent_color_id(User *u, UserId user_id, AccentColorId accent_color_id);
-
-  void on_update_user_profile_background_custom_emoji_id(User *u, UserId user_id,
-                                                         CustomEmojiId background_custom_emoji_id);
-
-  void on_update_user_emoji_status(User *u, UserId user_id, unique_ptr<EmojiStatus> emoji_status);
-
-  void on_update_user_story_ids_impl(User *u, UserId user_id, StoryId max_active_story_id, StoryId max_read_story_id);
-
-  void on_update_user_max_read_story_id(User *u, UserId user_id, StoryId max_read_story_id);
-
-  void on_update_user_stories_hidden(User *u, UserId user_id, bool stories_hidden);
-
-  void on_update_user_bot_verification_icon(User *u, UserId user_id, CustomEmojiId bot_verification_icon);
-
-  void on_update_user_is_contact(User *u, UserId user_id, bool is_contact, bool is_mutual_contact,
-                                 bool is_close_friend);
-
-  void on_update_user_online(User *u, UserId user_id, telegram_api::object_ptr<telegram_api::UserStatus> &&status);
-
-  void on_update_user_local_was_online(User *u, UserId user_id, int32 local_was_online);
-
-  static void on_update_user_full_is_blocked(UserFull *user_full, UserId user_id, bool is_blocked,
-                                             bool is_blocked_for_stories);
-
-  static void on_update_user_full_gift_count(UserFull *user_full, UserId user_id, int32 gift_count);
-
-  static void on_update_user_full_common_chat_count(UserFull *user_full, UserId user_id, int32 common_chat_count);
-
-  static void on_update_user_full_location(UserFull *user_full, UserId user_id, DialogLocation &&location);
-
-  static void on_update_user_full_work_hours(UserFull *user_full, UserId user_id, BusinessWorkHours &&work_hours);
-
-  void on_update_user_full_away_message(UserFull *user_full, UserId user_id, BusinessAwayMessage &&away_message) const;
-
-  void on_update_user_full_greeting_message(UserFull *user_full, UserId user_id,
-                                            BusinessGreetingMessage &&greeting_message) const;
-
-  static void on_update_user_full_intro(UserFull *user_full, UserId user_id, BusinessIntro &&intro);
-
-  static void on_update_user_full_commands(UserFull *user_full, UserId user_id,
-                                           vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands);
-
-  void on_update_user_full_referral_program_info(UserFull *user_full, UserId user_id,
-                                                 ReferralProgramInfo &&referral_program_info);
-
-  void on_update_user_full_verifier_settings(UserFull *user_full, UserId user_id,
-                                             unique_ptr<BotVerifierSettings> &&verifier_settings);
-
-  void on_update_user_full_need_phone_number_privacy_exception(UserFull *user_full, UserId user_id,
-                                                               bool need_phone_number_privacy_exception) const;
-
-  void on_update_user_full_charge_paid_message_stars(UserFull *user_full, UserId user_id,
-                                                     int64 charge_paid_message_stars) const;
-
-  void on_update_user_full_send_paid_message_stars(UserFull *user_full, UserId user_id,
-                                                   int64 send_paid_message_stars) const;
-
-  void on_update_user_full_wallpaper_overridden(UserFull *user_full, UserId user_id, bool wallpaper_overridden) const;
-
-  static void on_update_user_full_menu_button(UserFull *user_full, UserId user_id,
-                                              telegram_api::object_ptr<telegram_api::BotMenuButton> &&bot_menu_button);
-
-  static void on_update_user_full_has_preview_medias(UserFull *user_full, UserId user_id, bool has_preview_medias);
-
-  static void on_update_user_full_can_manage_emoji_status(UserFull *user_full, UserId user_id,
-                                                          bool can_manage_emoji_status);
-
-  bool have_input_peer_user(const User *u, UserId user_id, AccessRights access_rights) const;
-
-  static bool have_input_encrypted_peer(const SecretChat *secret_chat, AccessRights access_rights);
-
-  bool need_poll_user_active_stories(const User *u, UserId user_id) const;
-
-  static string get_user_search_text(const User *u);
-
-  void set_profile_photo_impl(UserId user_id, const td_api::object_ptr<td_api::InputChatPhoto> &input_photo,
-                              bool is_fallback, bool only_suggest, Promise<Unit> &&promise);
-
-  void upload_profile_photo(UserId user_id, FileUploadId file_upload_id, bool is_fallback, bool only_suggest,
-                            bool is_animation, double main_frame_timestamp, Promise<Unit> &&promise,
-                            int reupload_count = 0, vector<int> bad_parts = {});
-
-  void on_upload_profile_photo(FileUploadId file_upload_id,
-                               telegram_api::object_ptr<telegram_api::InputFile> input_file);
-
-  void on_upload_profile_photo_error(FileUploadId file_upload_id, Status status);
-
-  void add_set_profile_photo_to_cache(UserId user_id, Photo &&photo, bool is_fallback);
-
-  bool delete_my_profile_photo_from_cache(int64 profile_photo_id);
-
-  void toggle_username_is_active_impl(string &&username, bool is_active, Promise<Unit> &&promise);
-
-  void reorder_usernames_impl(vector<string> &&usernames, Promise<Unit> &&promise);
-
-  void on_set_birthdate(Birthdate birthdate, Promise<Unit> &&promise);
-
-  void on_set_personal_channel(ChannelId channel_id, Promise<Unit> &&promise);
-
-  void on_set_emoji_status(unique_ptr<EmojiStatus> emoji_status, Promise<Unit> &&promise);
-
-  void on_toggle_sponsored_messages(bool sponsored_enabled, Promise<Unit> &&promise);
-
-  void on_get_support_user(UserId user_id, Promise<td_api::object_ptr<td_api::user>> &&promise);
-
-  void send_get_user_photos_query(UserId user_id, const UserPhotos *user_photos);
-
-  void on_get_user_profile_photos(UserId user_id, Result<Unit> &&result);
-
-  UserPhotos *add_user_photos(UserId user_id);
-
-  void apply_pending_user_photo(User *u, UserId user_id, const char *source);
-
-  void load_contacts(Promise<Unit> &&promise);
-
-  int64 get_contacts_hash();
-
-  void save_next_contacts_sync_date();
-
-  void save_contacts_to_database();
-
-  void on_load_contacts_from_database(string value);
-
-  void on_get_contacts_finished(size_t expected_contact_count);
-
-  void do_import_contacts(vector<Contact> contacts, int64 random_id, Promise<Unit> &&promise);
-
-  void on_import_contacts_finished(int64 random_id, vector<UserId> imported_contact_user_ids,
-                                   vector<int32> unimported_contact_invites);
-
-  void load_imported_contacts(Promise<Unit> &&promise);
-
-  void on_load_imported_contacts_from_database(string value);
-
-  void on_load_imported_contacts_finished();
-
-  void on_clear_imported_contacts(vector<Contact> &&contacts, vector<size_t> contacts_unique_id,
-                                  std::pair<vector<size_t>, vector<Contact>> &&to_add, Promise<Unit> &&promise);
-
-  void update_contacts_hints(const User *u, UserId user_id, bool from_database);
-
-  const UserFull *get_user_full(UserId user_id) const;
-
-  UserFull *get_user_full(UserId user_id);
-
-  UserFull *add_user_full(UserId user_id);
-
-  UserFull *get_user_full_force(UserId user_id, const char *source);
-
-  void send_get_user_full_query(UserId user_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-                                Promise<Unit> &&promise, const char *source);
-
-  static void save_user_full(const UserFull *user_full, UserId user_id);
-
-  static string get_user_full_database_key(UserId user_id);
-
-  static string get_user_full_database_value(const UserFull *user_full);
-
-  void on_load_user_full_from_database(UserId user_id, string value);
-
-  int64 get_user_full_profile_photo_id(const UserFull *user_full);
-
-  void drop_user_full_photos(UserFull *user_full, UserId user_id, int64 expected_photo_id, const char *source);
-
-  void drop_user_photos(UserId user_id, bool is_empty, const char *source);
-
-  void drop_user_full(UserId user_id);
-
-  const SecretChat *get_secret_chat(SecretChatId secret_chat_id) const;
-
-  SecretChat *get_secret_chat(SecretChatId secret_chat_id);
-
-  SecretChat *add_secret_chat(SecretChatId secret_chat_id);
-
-  SecretChat *get_secret_chat_force(SecretChatId secret_chat_id, const char *source);
-
-  void save_secret_chat(SecretChat *c, SecretChatId secret_chat_id, bool from_binlog);
-
-  static string get_secret_chat_database_key(SecretChatId secret_chat_id);
-
-  static string get_secret_chat_database_value(const SecretChat *c);
-
-  void save_secret_chat_to_database(SecretChat *c, SecretChatId secret_chat_id);
-
-  void save_secret_chat_to_database_impl(SecretChat *c, SecretChatId secret_chat_id, string value);
-
-  void on_save_secret_chat_to_database(SecretChatId secret_chat_id, bool success);
-
-  void load_secret_chat_from_database(SecretChat *c, SecretChatId secret_chat_id, Promise<Unit> promise);
-
-  void load_secret_chat_from_database_impl(SecretChatId secret_chat_id, Promise<Unit> promise);
-
-  void on_load_secret_chat_from_database(SecretChatId secret_chat_id, string value, bool force);
-
-  void on_create_new_secret_chat(SecretChatId secret_chat_id, Promise<td_api::object_ptr<td_api::chat>> &&promise);
-
-  void update_user(User *u, UserId user_id, bool from_binlog = false, bool from_database = false);
-
-  void update_secret_chat(SecretChat *c, SecretChatId secret_chat_id, bool from_binlog = false,
-                          bool from_database = false);
-
-  void update_user_full(UserFull *user_full, UserId user_id, const char *source, bool from_database = false);
-
-  td_api::object_ptr<td_api::UserStatus> get_user_status_object(UserId user_id, const User *u, int32 unix_time) const;
-
-  static bool get_user_has_unread_stories(const User *u);
-
-  td_api::object_ptr<td_api::updateUser> get_update_user_object(UserId user_id, const User *u) const;
-
-  td_api::object_ptr<td_api::updateUser> get_update_unknown_user_object(UserId user_id) const;
-
-  td_api::object_ptr<td_api::user> get_user_object(UserId user_id, const User *u) const;
-
-  td_api::object_ptr<td_api::userFullInfo> get_user_full_info_object(UserId user_id, const UserFull *user_full) const;
-
-  td_api::object_ptr<td_api::updateContactCloseBirthdays> get_update_contact_close_birthdays() const;
-
-  static td_api::object_ptr<td_api::SecretChatState> get_secret_chat_state_object(SecretChatState state);
-
-  td_api::object_ptr<td_api::updateSecretChat> get_update_secret_chat_object(SecretChatId secret_chat_id,
-                                                                             const SecretChat *secret_chat);
-
-  static td_api::object_ptr<td_api::updateSecretChat> get_update_unknown_secret_chat_object(
-      SecretChatId secret_chat_id);
-
-  td_api::object_ptr<td_api::secretChat> get_secret_chat_object(SecretChatId secret_chat_id,
-                                                                const SecretChat *secret_chat);
-
-  td_api::object_ptr<td_api::secretChat> get_secret_chat_object_const(SecretChatId secret_chat_id,
-                                                                      const SecretChat *secret_chat) const;
-
-  td_api::object_ptr<td_api::updateFreezeState> get_update_freeze_state_object() const;
-
-  Td *td_;
-  ActorShared<> parent_;
-  UserId my_id_;
-  UserId support_user_id_;
-  int32 my_was_online_local_ = 0;
-
-  WaitFreeHashMap<UserId, unique_ptr<User>, UserIdHash> users_;
-  WaitFreeHashMap<UserId, unique_ptr<UserFull>, UserIdHash> users_full_;
-  WaitFreeHashMap<UserId, unique_ptr<UserPhotos>, UserIdHash> user_photos_;
-  mutable FlatHashSet<UserId, UserIdHash> unknown_users_;
-  WaitFreeHashMap<UserId, telegram_api::object_ptr<telegram_api::UserProfilePhoto>, UserIdHash> pending_user_photos_;
-  struct UserIdPhotoIdHash {
-    uint32 operator()(const std::pair<UserId, int64> &pair) const {
-      return combine_hashes(UserIdHash()(pair.first), Hash<int64>()(pair.second));
-    }
-  };
-  WaitFreeHashMap<std::pair<UserId, int64>, FileSourceId, UserIdPhotoIdHash> user_profile_photo_file_source_ids_;
-  FlatHashMap<int64, FileId> my_photo_file_id_;
-  WaitFreeHashMap<UserId, FileSourceId, UserIdHash> user_full_file_source_ids_;
-
-  WaitFreeHashMap<SecretChatId, unique_ptr<SecretChat>, SecretChatIdHash> secret_chats_;
-  mutable FlatHashSet<SecretChatId, SecretChatIdHash> unknown_secret_chats_;
-
-  FlatHashMap<UserId, vector<SecretChatId>, UserIdHash> secret_chats_with_user_;
-
-  FlatHashMap<UserId, vector<Promise<Unit>>, UserIdHash> load_user_from_database_queries_;
-  FlatHashSet<UserId, UserIdHash> loaded_from_database_users_;
-  FlatHashSet<UserId, UserIdHash> unavailable_user_fulls_;
-
-  FlatHashMap<SecretChatId, vector<Promise<Unit>>, SecretChatIdHash> load_secret_chat_from_database_queries_;
-  FlatHashSet<SecretChatId, SecretChatIdHash> loaded_from_database_secret_chats_;
-
-  QueryMerger get_user_queries_{"GetUserMerger", 3, 50};
-
-  QueryMerger get_is_premium_required_to_contact_queries_{"GetIsPremiumRequiredToContactMerger", 3, 100};
-
-  QueryCombiner get_user_full_queries_{"GetUserFullCombiner", 2.0};
-  class UploadProfilePhotoCallback;
-  std::shared_ptr<UploadProfilePhotoCallback> upload_profile_photo_callback_;
-
-  struct UploadedProfilePhoto {
-    UserId user_id;
-    bool is_fallback;
-    bool only_suggest;
-    double main_frame_timestamp;
-    bool is_animation;
-    int reupload_count;
-    Promise<Unit> promise;
-
-    UploadedProfilePhoto(UserId user_id, bool is_fallback, bool only_suggest, double main_frame_timestamp,
-                         bool is_animation, int32 reupload_count, Promise<Unit> promise)
-        : user_id(user_id)
-        , is_fallback(is_fallback)
-        , only_suggest(only_suggest)
-        , main_frame_timestamp(main_frame_timestamp)
-        , is_animation(is_animation)
-        , reupload_count(reupload_count)
-        , promise(std::move(promise)) {
-    }
-  };
-  FlatHashMap<FileUploadId, UploadedProfilePhoto, FileUploadIdHash> being_uploaded_profile_photos_;
-
-  struct ImportContactsTask {
-    Promise<Unit> promise_;
-    vector<Contact> input_contacts_;
-    vector<UserId> imported_user_ids_;
-    vector<int32> unimported_contact_invites_;
-  };
-  FlatHashMap<int64, unique_ptr<ImportContactsTask>> import_contact_tasks_;
-
-  FlatHashMap<int64, std::pair<vector<UserId>, vector<int32>>> imported_contacts_;
-
-  FlatHashMap<string, UserId> resolved_phone_numbers_;
-
-  FlatHashMap<UserId, FlatHashSet<MessageFullId, MessageFullIdHash>, UserIdHash> user_messages_;
-
-  bool are_contacts_loaded_ = false;
-  int32 next_contacts_sync_date_ = 0;
-  Hints contacts_hints_;  // search contacts by first name, last name and usernames
-  vector<Promise<Unit>> load_contacts_queries_;
-  MultiPromiseActor load_contact_users_multipromise_{"LoadContactUsersMultiPromiseActor"};
-  int32 saved_contact_count_ = -1;
-
-  int32 was_online_local_ = 0;
-  int32 was_online_remote_ = 0;
-
-  bool are_imported_contacts_loaded_ = false;
-  vector<Promise<Unit>> load_imported_contacts_queries_;
-  MultiPromiseActor load_imported_contact_users_multipromise_{"LoadImportedContactUsersMultiPromiseActor"};
-  vector<Contact> all_imported_contacts_;
-  bool are_imported_contacts_changing_ = false;
-  bool need_clear_imported_contacts_ = false;
-
-  FlatHashMap<UserId, int64, UserIdHash> user_full_contact_price_;  // -1 - premium required
-
-  WaitFreeHashSet<UserId, UserIdHash> restricted_user_ids_;
-
-  int32 freeze_since_date_ = 0;
-  int32 freeze_until_date_ = 0;
-  string freeze_appeal_url_;
-
-  struct ContactBirthdates {
-    vector<std::pair<UserId, Birthdate>> users_;
-    double next_sync_time_ = 0.0;
-    bool is_being_synced_ = false;
-    bool need_drop_ = false;
-  };
-  ContactBirthdates contact_birthdates_;
-
-  vector<Contact> next_all_imported_contacts_;
-  vector<size_t> imported_contacts_unique_id_;
-  vector<size_t> imported_contacts_pos_;
-
-  vector<UserId> imported_contact_user_ids_;  // result of change_imported_contacts
-  vector<int32> unimported_contact_invites_;  // result of change_imported_contacts
-
-  MultiTimeout user_online_timeout_{"UserOnlineTimeout"};
-  MultiTimeout user_emoji_status_timeout_{"UserEmojiStatusTimeout"};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserPrivacySetting.cpp b/third-party/td/td/td/telegram/UserPrivacySetting.cpp
deleted file mode 100644
index 1bbd082dd4..0000000000
--- a/third-party/td/td/td/telegram/UserPrivacySetting.cpp
+++ /dev/null
@@ -1,180 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/UserPrivacySetting.h"
-
-namespace td {
-
-Result<UserPrivacySetting> UserPrivacySetting::get_user_privacy_setting(
-    td_api::object_ptr<td_api::UserPrivacySetting> key) {
-  if (key == nullptr) {
-    return Status::Error(400, "UserPrivacySetting must be non-empty");
-  }
-  return UserPrivacySetting(*key);
-}
-
-UserPrivacySetting::UserPrivacySetting(const telegram_api::PrivacyKey &key) {
-  switch (key.get_id()) {
-    case telegram_api::privacyKeyStatusTimestamp::ID:
-      type_ = Type::UserStatus;
-      break;
-    case telegram_api::privacyKeyChatInvite::ID:
-      type_ = Type::ChatInvite;
-      break;
-    case telegram_api::privacyKeyPhoneCall::ID:
-      type_ = Type::Call;
-      break;
-    case telegram_api::privacyKeyPhoneP2P::ID:
-      type_ = Type::PeerToPeerCall;
-      break;
-    case telegram_api::privacyKeyForwards::ID:
-      type_ = Type::LinkInForwardedMessages;
-      break;
-    case telegram_api::privacyKeyProfilePhoto::ID:
-      type_ = Type::UserProfilePhoto;
-      break;
-    case telegram_api::privacyKeyPhoneNumber::ID:
-      type_ = Type::UserPhoneNumber;
-      break;
-    case telegram_api::privacyKeyAddedByPhone::ID:
-      type_ = Type::FindByPhoneNumber;
-      break;
-    case telegram_api::privacyKeyVoiceMessages::ID:
-      type_ = Type::VoiceMessages;
-      break;
-    case telegram_api::privacyKeyAbout::ID:
-      type_ = Type::UserBio;
-      break;
-    case telegram_api::privacyKeyBirthday::ID:
-      type_ = Type::UserBirthdate;
-      break;
-    case telegram_api::privacyKeyStarGiftsAutoSave::ID:
-      type_ = Type::StarGiftAutosave;
-      break;
-    case telegram_api::privacyKeyNoPaidMessages::ID:
-      type_ = Type::NoPaidMessages;
-      break;
-    default:
-      UNREACHABLE();
-      type_ = Type::UserStatus;
-  }
-}
-
-td_api::object_ptr<td_api::UserPrivacySetting> UserPrivacySetting::get_user_privacy_setting_object() const {
-  switch (type_) {
-    case Type::UserStatus:
-      return td_api::make_object<td_api::userPrivacySettingShowStatus>();
-    case Type::ChatInvite:
-      return td_api::make_object<td_api::userPrivacySettingAllowChatInvites>();
-    case Type::Call:
-      return td_api::make_object<td_api::userPrivacySettingAllowCalls>();
-    case Type::PeerToPeerCall:
-      return td_api::make_object<td_api::userPrivacySettingAllowPeerToPeerCalls>();
-    case Type::LinkInForwardedMessages:
-      return td_api::make_object<td_api::userPrivacySettingShowLinkInForwardedMessages>();
-    case Type::UserProfilePhoto:
-      return td_api::make_object<td_api::userPrivacySettingShowProfilePhoto>();
-    case Type::UserPhoneNumber:
-      return td_api::make_object<td_api::userPrivacySettingShowPhoneNumber>();
-    case Type::FindByPhoneNumber:
-      return td_api::make_object<td_api::userPrivacySettingAllowFindingByPhoneNumber>();
-    case Type::VoiceMessages:
-      return td_api::make_object<td_api::userPrivacySettingAllowPrivateVoiceAndVideoNoteMessages>();
-    case Type::UserBio:
-      return td_api::make_object<td_api::userPrivacySettingShowBio>();
-    case Type::UserBirthdate:
-      return td_api::make_object<td_api::userPrivacySettingShowBirthdate>();
-    case Type::StarGiftAutosave:
-      return td_api::make_object<td_api::userPrivacySettingAutosaveGifts>();
-    case Type::NoPaidMessages:
-      return td_api::make_object<td_api::userPrivacySettingAllowUnpaidMessages>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-telegram_api::object_ptr<telegram_api::InputPrivacyKey> UserPrivacySetting::get_input_privacy_key() const {
-  switch (type_) {
-    case Type::UserStatus:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyStatusTimestamp>();
-    case Type::ChatInvite:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyChatInvite>();
-    case Type::Call:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyPhoneCall>();
-    case Type::PeerToPeerCall:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyPhoneP2P>();
-    case Type::LinkInForwardedMessages:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyForwards>();
-    case Type::UserProfilePhoto:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyProfilePhoto>();
-    case Type::UserPhoneNumber:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyPhoneNumber>();
-    case Type::FindByPhoneNumber:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyAddedByPhone>();
-    case Type::VoiceMessages:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyVoiceMessages>();
-    case Type::UserBio:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyAbout>();
-    case Type::UserBirthdate:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyBirthday>();
-    case Type::StarGiftAutosave:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyStarGiftsAutoSave>();
-    case Type::NoPaidMessages:
-      return telegram_api::make_object<telegram_api::inputPrivacyKeyNoPaidMessages>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-UserPrivacySetting::UserPrivacySetting(const td_api::UserPrivacySetting &key) {
-  switch (key.get_id()) {
-    case td_api::userPrivacySettingShowStatus::ID:
-      type_ = Type::UserStatus;
-      break;
-    case td_api::userPrivacySettingAllowChatInvites::ID:
-      type_ = Type::ChatInvite;
-      break;
-    case td_api::userPrivacySettingAllowCalls::ID:
-      type_ = Type::Call;
-      break;
-    case td_api::userPrivacySettingAllowPeerToPeerCalls::ID:
-      type_ = Type::PeerToPeerCall;
-      break;
-    case td_api::userPrivacySettingShowLinkInForwardedMessages::ID:
-      type_ = Type::LinkInForwardedMessages;
-      break;
-    case td_api::userPrivacySettingShowProfilePhoto::ID:
-      type_ = Type::UserProfilePhoto;
-      break;
-    case td_api::userPrivacySettingShowPhoneNumber::ID:
-      type_ = Type::UserPhoneNumber;
-      break;
-    case td_api::userPrivacySettingAllowFindingByPhoneNumber::ID:
-      type_ = Type::FindByPhoneNumber;
-      break;
-    case td_api::userPrivacySettingAllowPrivateVoiceAndVideoNoteMessages::ID:
-      type_ = Type::VoiceMessages;
-      break;
-    case td_api::userPrivacySettingShowBio::ID:
-      type_ = Type::UserBio;
-      break;
-    case td_api::userPrivacySettingShowBirthdate::ID:
-      type_ = Type::UserBirthdate;
-      break;
-    case td_api::userPrivacySettingAutosaveGifts::ID:
-      type_ = Type::StarGiftAutosave;
-      break;
-    case td_api::userPrivacySettingAllowUnpaidMessages::ID:
-      type_ = Type::NoPaidMessages;
-      break;
-    default:
-      UNREACHABLE();
-      type_ = Type::UserStatus;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserPrivacySetting.h b/third-party/td/td/td/telegram/UserPrivacySetting.h
deleted file mode 100644
index f6618f1b6c..0000000000
--- a/third-party/td/td/td/telegram/UserPrivacySetting.h
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class UserPrivacySetting {
- public:
-  enum class Type : int32 {
-    UserStatus,
-    ChatInvite,
-    Call,
-    PeerToPeerCall,
-    LinkInForwardedMessages,
-    UserProfilePhoto,
-    UserPhoneNumber,
-    FindByPhoneNumber,
-    VoiceMessages,
-    UserBio,
-    UserBirthdate,
-    StarGiftAutosave,
-    NoPaidMessages,
-    Size
-  };
-
-  explicit UserPrivacySetting(const telegram_api::PrivacyKey &key);
-
-  static Result<UserPrivacySetting> get_user_privacy_setting(td_api::object_ptr<td_api::UserPrivacySetting> key);
-
-  td_api::object_ptr<td_api::UserPrivacySetting> get_user_privacy_setting_object() const;
-
-  telegram_api::object_ptr<telegram_api::InputPrivacyKey> get_input_privacy_key() const;
-
-  Type type() const {
-    return type_;
-  }
-
- private:
-  Type type_;
-
-  explicit UserPrivacySetting(const td_api::UserPrivacySetting &key);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserPrivacySettingRule.cpp b/third-party/td/td/td/telegram/UserPrivacySettingRule.cpp
deleted file mode 100644
index 2d9513dba4..0000000000
--- a/third-party/td/td/td/telegram/UserPrivacySettingRule.cpp
+++ /dev/null
@@ -1,424 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/UserPrivacySettingRule.h"
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/UserManager.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-
-#include <algorithm>
-
-namespace td {
-
-void UserPrivacySettingRule::set_dialog_ids(Td *td, const vector<int64> &chat_ids) {
-  dialog_ids_.clear();
-  for (auto chat_id : chat_ids) {
-    DialogId dialog_id(chat_id);
-    if (!td->dialog_manager_->have_dialog_force(dialog_id, "UserPrivacySettingRule::set_dialog_ids")) {
-      LOG(INFO) << "Ignore not found " << dialog_id;
-      continue;
-    }
-
-    switch (dialog_id.get_type()) {
-      case DialogType::Chat:
-        dialog_ids_.push_back(dialog_id);
-        break;
-      case DialogType::Channel: {
-        auto channel_id = dialog_id.get_channel_id();
-        if (!td->chat_manager_->is_megagroup_channel(channel_id)) {
-          LOG(INFO) << "Ignore broadcast " << channel_id;
-          break;
-        }
-        dialog_ids_.push_back(dialog_id);
-        break;
-      }
-      default:
-        LOG(INFO) << "Ignore " << dialog_id;
-    }
-  }
-}
-
-UserPrivacySettingRule::UserPrivacySettingRule(Td *td, const td_api::UserPrivacySettingRule &rule) {
-  switch (rule.get_id()) {
-    case td_api::userPrivacySettingRuleAllowContacts::ID:
-      type_ = Type::AllowContacts;
-      break;
-    case td_api::userPrivacySettingRuleAllowBots::ID:
-      type_ = Type::AllowBots;
-      break;
-    case td_api::userPrivacySettingRuleAllowPremiumUsers::ID:
-      type_ = Type::AllowPremium;
-      break;
-    case td_api::userPrivacySettingRuleAllowAll::ID:
-      type_ = Type::AllowAll;
-      break;
-    case td_api::userPrivacySettingRuleAllowUsers::ID:
-      type_ = Type::AllowUsers;
-      user_ids_ = UserId::get_user_ids(static_cast<const td_api::userPrivacySettingRuleAllowUsers &>(rule).user_ids_);
-      break;
-    case td_api::userPrivacySettingRuleAllowChatMembers::ID:
-      type_ = Type::AllowChatParticipants;
-      set_dialog_ids(td, static_cast<const td_api::userPrivacySettingRuleAllowChatMembers &>(rule).chat_ids_);
-      break;
-    case td_api::userPrivacySettingRuleRestrictContacts::ID:
-      type_ = Type::RestrictContacts;
-      break;
-    case td_api::userPrivacySettingRuleRestrictBots::ID:
-      type_ = Type::RestrictBots;
-      break;
-    case td_api::userPrivacySettingRuleRestrictAll::ID:
-      type_ = Type::RestrictAll;
-      break;
-    case td_api::userPrivacySettingRuleRestrictUsers::ID:
-      type_ = Type::RestrictUsers;
-      user_ids_ =
-          UserId::get_user_ids(static_cast<const td_api::userPrivacySettingRuleRestrictUsers &>(rule).user_ids_);
-      break;
-    case td_api::userPrivacySettingRuleRestrictChatMembers::ID:
-      type_ = Type::RestrictChatParticipants;
-      set_dialog_ids(td, static_cast<const td_api::userPrivacySettingRuleRestrictChatMembers &>(rule).chat_ids_);
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-UserPrivacySettingRule::UserPrivacySettingRule(Td *td,
-                                               const telegram_api::object_ptr<telegram_api::PrivacyRule> &rule) {
-  CHECK(rule != nullptr);
-  switch (rule->get_id()) {
-    case telegram_api::privacyValueAllowContacts::ID:
-      type_ = Type::AllowContacts;
-      break;
-    case telegram_api::privacyValueAllowBots::ID:
-      type_ = Type::AllowBots;
-      break;
-    case telegram_api::privacyValueAllowPremium::ID:
-      type_ = Type::AllowPremium;
-      break;
-    case telegram_api::privacyValueAllowCloseFriends::ID:
-      type_ = Type::AllowCloseFriends;
-      break;
-    case telegram_api::privacyValueAllowAll::ID:
-      type_ = Type::AllowAll;
-      break;
-    case telegram_api::privacyValueAllowUsers::ID:
-      type_ = Type::AllowUsers;
-      user_ids_ = UserId::get_user_ids(static_cast<const telegram_api::privacyValueAllowUsers &>(*rule).users_);
-      break;
-    case telegram_api::privacyValueAllowChatParticipants::ID:
-      type_ = Type::AllowChatParticipants;
-      set_dialog_ids_from_server(td,
-                                 static_cast<const telegram_api::privacyValueAllowChatParticipants &>(*rule).chats_);
-      break;
-    case telegram_api::privacyValueDisallowContacts::ID:
-      type_ = Type::RestrictContacts;
-      break;
-    case telegram_api::privacyValueDisallowBots::ID:
-      type_ = Type::RestrictBots;
-      break;
-    case telegram_api::privacyValueDisallowAll::ID:
-      type_ = Type::RestrictAll;
-      break;
-    case telegram_api::privacyValueDisallowUsers::ID:
-      type_ = Type::RestrictUsers;
-      user_ids_ = UserId::get_user_ids(static_cast<const telegram_api::privacyValueDisallowUsers &>(*rule).users_);
-      break;
-    case telegram_api::privacyValueDisallowChatParticipants::ID:
-      type_ = Type::RestrictChatParticipants;
-      set_dialog_ids_from_server(td,
-                                 static_cast<const telegram_api::privacyValueDisallowChatParticipants &>(*rule).chats_);
-      break;
-    default:
-      UNREACHABLE();
-  }
-  td::remove_if(user_ids_, [td](UserId user_id) {
-    if (!td->user_manager_->have_user(user_id)) {
-      LOG(ERROR) << "Receive unknown " << user_id;
-      return true;
-    }
-    return false;
-  });
-}
-
-void UserPrivacySettingRule::set_dialog_ids_from_server(Td *td, const vector<int64> &server_chat_ids) {
-  dialog_ids_.clear();
-  for (auto server_chat_id : server_chat_ids) {
-    ChatId chat_id(server_chat_id);
-    DialogId dialog_id(chat_id);
-    if (!td->chat_manager_->have_chat(chat_id)) {
-      ChannelId channel_id(server_chat_id);
-      dialog_id = DialogId(channel_id);
-      if (!td->chat_manager_->have_channel(channel_id)) {
-        LOG(ERROR) << "Receive unknown group " << server_chat_id << " from the server";
-        continue;
-      }
-    }
-    td->dialog_manager_->force_create_dialog(dialog_id, "set_dialog_ids_from_server");
-    dialog_ids_.push_back(dialog_id);
-  }
-}
-
-td_api::object_ptr<td_api::UserPrivacySettingRule> UserPrivacySettingRule::get_user_privacy_setting_rule_object(
-    Td *td) const {
-  switch (type_) {
-    case Type::AllowContacts:
-      return make_tl_object<td_api::userPrivacySettingRuleAllowContacts>();
-    case Type::AllowBots:
-      return make_tl_object<td_api::userPrivacySettingRuleAllowBots>();
-    case Type::AllowPremium:
-      return make_tl_object<td_api::userPrivacySettingRuleAllowPremiumUsers>();
-    case Type::AllowCloseFriends:
-      LOG(ERROR) << "Have AllowCloseFriends rule";
-      return make_tl_object<td_api::userPrivacySettingRuleAllowUsers>();
-    case Type::AllowAll:
-      return make_tl_object<td_api::userPrivacySettingRuleAllowAll>();
-    case Type::AllowUsers:
-      return make_tl_object<td_api::userPrivacySettingRuleAllowUsers>(
-          td->user_manager_->get_user_ids_object(user_ids_, "userPrivacySettingRuleAllowUsers"));
-    case Type::AllowChatParticipants:
-      return make_tl_object<td_api::userPrivacySettingRuleAllowChatMembers>(
-          td->dialog_manager_->get_chat_ids_object(dialog_ids_, "UserPrivacySettingRule"));
-    case Type::RestrictContacts:
-      return make_tl_object<td_api::userPrivacySettingRuleRestrictContacts>();
-    case Type::RestrictBots:
-      return make_tl_object<td_api::userPrivacySettingRuleRestrictBots>();
-    case Type::RestrictAll:
-      return make_tl_object<td_api::userPrivacySettingRuleRestrictAll>();
-    case Type::RestrictUsers:
-      return make_tl_object<td_api::userPrivacySettingRuleRestrictUsers>(
-          td->user_manager_->get_user_ids_object(user_ids_, "userPrivacySettingRuleRestrictUsers"));
-    case Type::RestrictChatParticipants:
-      return make_tl_object<td_api::userPrivacySettingRuleRestrictChatMembers>(
-          td->dialog_manager_->get_chat_ids_object(dialog_ids_, "UserPrivacySettingRule"));
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-telegram_api::object_ptr<telegram_api::InputPrivacyRule> UserPrivacySettingRule::get_input_privacy_rule(Td *td) const {
-  switch (type_) {
-    case Type::AllowContacts:
-      return make_tl_object<telegram_api::inputPrivacyValueAllowContacts>();
-    case Type::AllowBots:
-      return make_tl_object<telegram_api::inputPrivacyValueAllowBots>();
-    case Type::AllowPremium:
-      return make_tl_object<telegram_api::inputPrivacyValueAllowPremium>();
-    case Type::AllowCloseFriends:
-      return make_tl_object<telegram_api::inputPrivacyValueAllowCloseFriends>();
-    case Type::AllowAll:
-      return make_tl_object<telegram_api::inputPrivacyValueAllowAll>();
-    case Type::AllowUsers:
-      return make_tl_object<telegram_api::inputPrivacyValueAllowUsers>(get_input_users(td));
-    case Type::AllowChatParticipants:
-      return make_tl_object<telegram_api::inputPrivacyValueAllowChatParticipants>(get_input_chat_ids(td));
-    case Type::RestrictContacts:
-      return make_tl_object<telegram_api::inputPrivacyValueDisallowContacts>();
-    case Type::RestrictBots:
-      return make_tl_object<telegram_api::inputPrivacyValueDisallowBots>();
-    case Type::RestrictAll:
-      return make_tl_object<telegram_api::inputPrivacyValueDisallowAll>();
-    case Type::RestrictUsers:
-      return make_tl_object<telegram_api::inputPrivacyValueDisallowUsers>(get_input_users(td));
-    case Type::RestrictChatParticipants:
-      return make_tl_object<telegram_api::inputPrivacyValueDisallowChatParticipants>(get_input_chat_ids(td));
-    default:
-      UNREACHABLE();
-  }
-}
-
-vector<telegram_api::object_ptr<telegram_api::InputUser>> UserPrivacySettingRule::get_input_users(Td *td) const {
-  vector<telegram_api::object_ptr<telegram_api::InputUser>> result;
-  for (auto user_id : user_ids_) {
-    auto r_input_user = td->user_manager_->get_input_user(user_id);
-    if (r_input_user.is_ok()) {
-      result.push_back(r_input_user.move_as_ok());
-    } else {
-      LOG(INFO) << "Have no access to " << user_id;
-    }
-  }
-  return result;
-}
-
-vector<int64> UserPrivacySettingRule::get_input_chat_ids(Td *td) const {
-  vector<int64> result;
-  for (auto dialog_id : dialog_ids_) {
-    switch (dialog_id.get_type()) {
-      case DialogType::Chat:
-        result.push_back(dialog_id.get_chat_id().get());
-        break;
-      case DialogType::Channel:
-        result.push_back(dialog_id.get_channel_id().get());
-        break;
-      default:
-        UNREACHABLE();
-    }
-  }
-  return result;
-}
-
-vector<UserId> UserPrivacySettingRule::get_restricted_user_ids() const {
-  if (type_ == Type::RestrictUsers) {
-    return user_ids_;
-  }
-  return {};
-}
-
-void UserPrivacySettingRule::add_dependencies(Dependencies &dependencies) const {
-  for (auto user_id : user_ids_) {
-    dependencies.add(user_id);
-  }
-  for (auto dialog_id : dialog_ids_) {
-    dependencies.add_dialog_and_dependencies(dialog_id);
-  }
-}
-
-UserPrivacySettingRules UserPrivacySettingRules::get_user_privacy_setting_rules(
-    Td *td, telegram_api::object_ptr<telegram_api::account_privacyRules> rules) {
-  td->user_manager_->on_get_users(std::move(rules->users_), "on get privacy rules");
-  td->chat_manager_->on_get_chats(std::move(rules->chats_), "on get privacy rules");
-  return get_user_privacy_setting_rules(td, std::move(rules->rules_));
-}
-
-UserPrivacySettingRules UserPrivacySettingRules::get_user_privacy_setting_rules(
-    Td *td, vector<telegram_api::object_ptr<telegram_api::PrivacyRule>> rules) {
-  UserPrivacySettingRules result;
-  for (auto &rule : rules) {
-    result.rules_.push_back(UserPrivacySettingRule(td, std::move(rule)));
-  }
-  if (!result.rules_.empty() && result.rules_.back().type_ == UserPrivacySettingRule::Type::RestrictAll) {
-    result.rules_.pop_back();
-  }
-  return result;
-}
-
-Result<UserPrivacySettingRules> UserPrivacySettingRules::get_user_privacy_setting_rules(
-    Td *td, td_api::object_ptr<td_api::userPrivacySettingRules> rules) {
-  if (rules == nullptr) {
-    return Status::Error(400, "UserPrivacySettingRules must be non-empty");
-  }
-  UserPrivacySettingRules result;
-  for (auto &rule : rules->rules_) {
-    if (rule == nullptr) {
-      return Status::Error(400, "UserPrivacySettingRule must be non-empty");
-    }
-    result.rules_.emplace_back(td, *rule);
-  }
-  return result;
-}
-
-Result<UserPrivacySettingRules> UserPrivacySettingRules::get_user_privacy_setting_rules(
-    Td *td, td_api::object_ptr<td_api::StoryPrivacySettings> settings) {
-  if (settings == nullptr) {
-    return Status::Error(400, "StoryPrivacySettings must be non-empty");
-  }
-  UserPrivacySettingRules result;
-  switch (settings->get_id()) {
-    case td_api::storyPrivacySettingsEveryone::ID: {
-      auto user_ids = std::move(static_cast<td_api::storyPrivacySettingsEveryone &>(*settings).except_user_ids_);
-      if (!user_ids.empty()) {
-        result.rules_.emplace_back(td, td_api::userPrivacySettingRuleRestrictUsers(std::move(user_ids)));
-      }
-      result.rules_.emplace_back(td, td_api::userPrivacySettingRuleAllowAll());
-      break;
-    }
-    case td_api::storyPrivacySettingsContacts::ID: {
-      auto user_ids = std::move(static_cast<td_api::storyPrivacySettingsContacts &>(*settings).except_user_ids_);
-      if (!user_ids.empty()) {
-        result.rules_.emplace_back(td, td_api::userPrivacySettingRuleRestrictUsers(std::move(user_ids)));
-      }
-      result.rules_.emplace_back(td, td_api::userPrivacySettingRuleAllowContacts());
-      break;
-    }
-    case td_api::storyPrivacySettingsCloseFriends::ID: {
-      UserPrivacySettingRule rule;
-      rule.type_ = UserPrivacySettingRule::Type::AllowCloseFriends;
-      result.rules_.push_back(std::move(rule));
-      break;
-    }
-    case td_api::storyPrivacySettingsSelectedUsers::ID: {
-      auto user_ids = std::move(static_cast<td_api::storyPrivacySettingsSelectedUsers &>(*settings).user_ids_);
-      result.rules_.emplace_back(td, td_api::userPrivacySettingRuleAllowUsers(std::move(user_ids)));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return result;
-}
-
-td_api::object_ptr<td_api::userPrivacySettingRules> UserPrivacySettingRules::get_user_privacy_setting_rules_object(
-    Td *td) const {
-  return make_tl_object<td_api::userPrivacySettingRules>(
-      transform(rules_, [td](const auto &rule) { return rule.get_user_privacy_setting_rule_object(td); }));
-}
-
-td_api::object_ptr<td_api::StoryPrivacySettings> UserPrivacySettingRules::get_story_privacy_settings_object(
-    Td *td) const {
-  if (rules_.empty()) {
-    return nullptr;
-  }
-  if (rules_.size() == 1u && rules_[0].type_ == UserPrivacySettingRule::Type::AllowAll) {
-    return td_api::make_object<td_api::storyPrivacySettingsEveryone>();
-  }
-  if (rules_.size() == 2u && rules_[0].type_ == UserPrivacySettingRule::Type::RestrictUsers &&
-      rules_[1].type_ == UserPrivacySettingRule::Type::AllowAll) {
-    return td_api::make_object<td_api::storyPrivacySettingsEveryone>(
-        td->user_manager_->get_user_ids_object(rules_[0].user_ids_, "storyPrivacySettingsEveryone"));
-  }
-  if (rules_.size() == 1u && rules_[0].type_ == UserPrivacySettingRule::Type::AllowContacts) {
-    return td_api::make_object<td_api::storyPrivacySettingsContacts>();
-  }
-  if (rules_.size() == 2u && rules_[0].type_ == UserPrivacySettingRule::Type::RestrictUsers &&
-      rules_[1].type_ == UserPrivacySettingRule::Type::AllowContacts) {
-    return td_api::make_object<td_api::storyPrivacySettingsContacts>(
-        td->user_manager_->get_user_ids_object(rules_[0].user_ids_, "storyPrivacySettingsContacts"));
-  }
-  if (rules_.size() == 1u && rules_[0].type_ == UserPrivacySettingRule::Type::AllowCloseFriends) {
-    return td_api::make_object<td_api::storyPrivacySettingsCloseFriends>();
-  }
-  if (rules_.size() == 1u && rules_[0].type_ == UserPrivacySettingRule::Type::AllowUsers) {
-    return td_api::make_object<td_api::storyPrivacySettingsSelectedUsers>(
-        td->user_manager_->get_user_ids_object(rules_[0].user_ids_, "storyPrivacySettingsSelectedUsers"));
-  }
-  return td_api::make_object<td_api::storyPrivacySettingsSelectedUsers>();
-}
-
-vector<telegram_api::object_ptr<telegram_api::InputPrivacyRule>> UserPrivacySettingRules::get_input_privacy_rules(
-    Td *td) const {
-  auto result = transform(rules_, [td](const auto &rule) { return rule.get_input_privacy_rule(td); });
-  if (!result.empty() && result.back()->get_id() == telegram_api::inputPrivacyValueDisallowAll::ID) {
-    result.pop_back();
-  }
-  return result;
-}
-
-vector<UserId> UserPrivacySettingRules::get_restricted_user_ids() const {
-  vector<UserId> result;
-  for (auto &rule : rules_) {
-    combine(result, rule.get_restricted_user_ids());
-  }
-  std::sort(result.begin(), result.end(), [](UserId lhs, UserId rhs) { return lhs.get() < rhs.get(); });
-  result.erase(std::unique(result.begin(), result.end()), result.end());
-  return result;
-}
-
-void UserPrivacySettingRules::add_dependencies(Dependencies &dependencies) const {
-  for (auto &rule : rules_) {
-    rule.add_dependencies(dependencies);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserPrivacySettingRule.h b/third-party/td/td/td/telegram/UserPrivacySettingRule.h
deleted file mode 100644
index a9ae1152fe..0000000000
--- a/third-party/td/td/td/telegram/UserPrivacySettingRule.h
+++ /dev/null
@@ -1,157 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Dependencies;
-class Td;
-
-class UserPrivacySettingRule {
- public:
-  UserPrivacySettingRule() = default;
-
-  UserPrivacySettingRule(Td *td, const td_api::UserPrivacySettingRule &rule);
-
-  UserPrivacySettingRule(Td *td, const telegram_api::object_ptr<telegram_api::PrivacyRule> &rule);
-
-  td_api::object_ptr<td_api::UserPrivacySettingRule> get_user_privacy_setting_rule_object(Td *td) const;
-
-  telegram_api::object_ptr<telegram_api::InputPrivacyRule> get_input_privacy_rule(Td *td) const;
-
-  bool operator==(const UserPrivacySettingRule &other) const {
-    return type_ == other.type_ && user_ids_ == other.user_ids_ && dialog_ids_ == other.dialog_ids_;
-  }
-
-  vector<UserId> get_restricted_user_ids() const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(type_, storer);
-    if (type_ == Type::AllowUsers || type_ == Type::RestrictUsers) {
-      td::store(user_ids_, storer);
-    }
-    if (type_ == Type::AllowChatParticipants || type_ == Type::RestrictChatParticipants) {
-      td::store(dialog_ids_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(type_, parser);
-    if (type_ == Type::AllowUsers || type_ == Type::RestrictUsers) {
-      td::parse(user_ids_, parser);
-      for (auto user_id : user_ids_) {
-        if (!user_id.is_valid()) {
-          parser.set_error("Failed to parse user identifiers");
-        }
-      }
-    } else if (type_ == Type::AllowChatParticipants || type_ == Type::RestrictChatParticipants) {
-      td::parse(dialog_ids_, parser);
-      for (auto dialog_id : dialog_ids_) {
-        auto dialog_type = dialog_id.get_type();
-        if (!dialog_id.is_valid() || (dialog_type != DialogType::Chat && dialog_type != DialogType::Channel)) {
-          parser.set_error("Failed to parse chat identifiers");
-        }
-      }
-    } else if (type_ != Type::AllowContacts && type_ != Type::AllowBots && type_ != Type::AllowPremium &&
-               type_ != Type::AllowCloseFriends && type_ != Type::AllowAll && type_ != Type::RestrictContacts &&
-               type_ != Type::RestrictBots && type_ != Type::RestrictAll) {
-      parser.set_error("Invalid privacy rule type");
-    }
-  }
-
- private:
-  enum class Type : int32 {
-    AllowContacts,
-    AllowCloseFriends,
-    AllowAll,
-    AllowUsers,
-    AllowChatParticipants,
-    RestrictContacts,
-    RestrictAll,
-    RestrictUsers,
-    RestrictChatParticipants,
-    AllowPremium,
-    AllowBots,
-    RestrictBots
-  } type_ = Type::RestrictAll;
-
-  friend class UserPrivacySettingRules;
-
-  vector<UserId> user_ids_;
-  vector<DialogId> dialog_ids_;
-
-  vector<telegram_api::object_ptr<telegram_api::InputUser>> get_input_users(Td *td) const;
-
-  vector<int64> get_input_chat_ids(Td *td) const;
-
-  void set_dialog_ids(Td *td, const vector<int64> &chat_ids);
-
-  void set_dialog_ids_from_server(Td *td, const vector<int64> &chat_ids);
-};
-
-class UserPrivacySettingRules {
- public:
-  UserPrivacySettingRules() = default;
-
-  static UserPrivacySettingRules get_user_privacy_setting_rules(
-      Td *td, telegram_api::object_ptr<telegram_api::account_privacyRules> rules);
-
-  static UserPrivacySettingRules get_user_privacy_setting_rules(
-      Td *td, vector<telegram_api::object_ptr<telegram_api::PrivacyRule>> rules);
-
-  static Result<UserPrivacySettingRules> get_user_privacy_setting_rules(
-      Td *td, td_api::object_ptr<td_api::userPrivacySettingRules> rules);
-
-  static Result<UserPrivacySettingRules> get_user_privacy_setting_rules(
-      Td *td, td_api::object_ptr<td_api::StoryPrivacySettings> settings);
-
-  td_api::object_ptr<td_api::userPrivacySettingRules> get_user_privacy_setting_rules_object(Td *td) const;
-
-  td_api::object_ptr<td_api::StoryPrivacySettings> get_story_privacy_settings_object(Td *td) const;
-
-  vector<telegram_api::object_ptr<telegram_api::InputPrivacyRule>> get_input_privacy_rules(Td *td) const;
-
-  bool operator==(const UserPrivacySettingRules &other) const {
-    return rules_ == other.rules_;
-  }
-
-  bool operator!=(const UserPrivacySettingRules &other) const {
-    return !(rules_ == other.rules_);
-  }
-
-  vector<UserId> get_restricted_user_ids() const;
-
-  void add_dependencies(Dependencies &dependencies) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(rules_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(rules_, parser);
-  }
-
- private:
-  vector<UserPrivacySettingRule> rules_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserStarGift.cpp b/third-party/td/td/td/telegram/UserStarGift.cpp
deleted file mode 100644
index 77c4701e24..0000000000
--- a/third-party/td/td/td/telegram/UserStarGift.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/UserStarGift.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/MessageSender.h"
-#include "td/telegram/ServerMessageId.h"
-#include "td/telegram/StarGiftManager.h"
-#include "td/telegram/StarManager.h"
-#include "td/telegram/Td.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-UserStarGift::UserStarGift(Td *td, telegram_api::object_ptr<telegram_api::savedStarGift> &&gift, DialogId dialog_id)
-    : gift_(td, std::move(gift->gift_), true)
-    , message_(get_formatted_text(td->user_manager_.get(), std::move(gift->message_), true, false, "userStarGift"))
-    , convert_star_count_(StarManager::get_star_count(gift->convert_stars_))
-    , upgrade_star_count_(StarManager::get_star_count(gift->upgrade_stars_))
-    , transfer_star_count_(StarManager::get_star_count(gift->transfer_stars_))
-    , date_(gift->date_)
-    , can_export_at_(max(0, gift->can_export_at_))
-    , is_name_hidden_(gift->name_hidden_)
-    , is_saved_(!gift->unsaved_)
-    , is_pinned_(gift->pinned_to_top_)
-    , can_upgrade_(gift->can_upgrade_)
-    , can_transfer_((gift->flags_ & telegram_api::savedStarGift::TRANSFER_STARS_MASK) != 0)
-    , was_refunded_(gift->refunded_) {
-  if (gift->from_id_ != nullptr) {
-    sender_dialog_id_ = DialogId(gift->from_id_);
-    if (!sender_dialog_id_.is_valid()) {
-      LOG(ERROR) << "Receive " << sender_dialog_id_ << " as sender of a gift";
-      sender_dialog_id_ = DialogId();
-    }
-  }
-  auto is_user = dialog_id.get_type() == DialogType::User;
-  auto is_me = is_user && dialog_id == td->dialog_manager_->get_my_dialog_id();
-  if (is_user) {
-    if (gift->msg_id_ != 0) {
-      star_gift_id_ = StarGiftId(ServerMessageId(gift->msg_id_));
-    }
-  } else {
-    if (gift->saved_id_ != 0) {
-      star_gift_id_ = StarGiftId(dialog_id, gift->saved_id_);
-    }
-  }
-  if (sender_dialog_id_ != DialogId() && !sender_dialog_id_.is_valid()) {
-    LOG(ERROR) << "Receive " << sender_dialog_id_ << " as sender of a gift";
-    sender_dialog_id_ = DialogId();
-  }
-  if (!is_saved_ && is_user && !is_me && !td->auth_manager_->is_bot()) {
-    LOG(ERROR) << "Receive non-saved gift for another user";
-    is_saved_ = true;
-  }
-  td->star_gift_manager_->on_get_star_gift(gift_, true);
-}
-
-td_api::object_ptr<td_api::receivedGift> UserStarGift::get_received_gift_object(Td *td) const {
-  return td_api::make_object<td_api::receivedGift>(
-      star_gift_id_.get_star_gift_id(),
-      sender_dialog_id_ == DialogId() ? nullptr : get_message_sender_object(td, sender_dialog_id_, "receivedGift"),
-      get_formatted_text_object(td->user_manager_.get(), message_, true, -1), is_name_hidden_, is_saved_, is_pinned_,
-      can_upgrade_, can_transfer_, was_refunded_, date_, gift_.get_sent_gift_object(td), convert_star_count_,
-      upgrade_star_count_, transfer_star_count_, can_export_at_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/UserStarGift.h b/third-party/td/td/td/telegram/UserStarGift.h
deleted file mode 100644
index 591478bdac..0000000000
--- a/third-party/td/td/td/telegram/UserStarGift.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/StarGift.h"
-#include "td/telegram/StarGiftId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Td;
-
-class UserStarGift {
-  DialogId sender_dialog_id_;
-  StarGift gift_;
-  FormattedText message_;
-  StarGiftId star_gift_id_;
-  int64 convert_star_count_ = 0;
-  int64 upgrade_star_count_ = 0;
-  int64 transfer_star_count_ = 0;
-  int32 date_ = 0;
-  int32 can_export_at_ = 0;
-  bool is_name_hidden_ = false;
-  bool is_saved_ = false;
-  bool is_pinned_ = false;
-  bool can_upgrade_ = false;
-  bool can_transfer_ = false;
-  bool was_refunded_ = false;
-
- public:
-  UserStarGift(Td *td, telegram_api::object_ptr<telegram_api::savedStarGift> &&gift, DialogId dialog_id);
-
-  bool is_valid() const {
-    return gift_.is_valid() && (is_name_hidden_ || sender_dialog_id_ != DialogId());
-  }
-
-  td_api::object_ptr<td_api::receivedGift> get_received_gift_object(Td *td) const;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Usernames.cpp b/third-party/td/td/td/telegram/Usernames.cpp
deleted file mode 100644
index 992db43053..0000000000
--- a/third-party/td/td/td/telegram/Usernames.cpp
+++ /dev/null
@@ -1,222 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Usernames.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-Usernames::Usernames(string &&first_username, vector<telegram_api::object_ptr<telegram_api::username>> &&usernames) {
-  if (usernames.empty()) {
-    if (!first_username.empty()) {
-      active_usernames_.push_back(std::move(first_username));
-      editable_username_pos_ = 0;
-    }
-    return;
-  }
-
-  if (!first_username.empty()) {
-    LOG(ERROR) << "Receive first username " << first_username << " with " << to_string(usernames);
-    return;
-  }
-  bool was_editable = false;
-  for (auto &username : usernames) {
-    if (username->username_.empty()) {
-      LOG(ERROR) << "Receive empty username in " << to_string(usernames);
-      return;
-    }
-    if (username->editable_) {
-      if (was_editable) {
-        LOG(ERROR) << "Receive two editable usernames in " << to_string(usernames);
-        return;
-      }
-      if (!username->active_) {
-        LOG(ERROR) << "Receive disabled editable usernames in " << to_string(usernames);
-        return;
-      }
-      was_editable = true;
-    }
-  }
-
-  for (size_t i = 0; i < usernames.size(); i++) {
-    if (usernames[i]->active_) {
-      active_usernames_.push_back(std::move(usernames[i]->username_));
-      if (usernames[i]->editable_) {
-        editable_username_pos_ = narrow_cast<int32>(i);
-      }
-    } else {
-      disabled_usernames_.push_back(std::move(usernames[i]->username_));
-    }
-  }
-  CHECK(has_editable_username() == was_editable);
-}
-
-tl_object_ptr<td_api::usernames> Usernames::get_usernames_object() const {
-  if (is_empty()) {
-    return nullptr;
-  }
-  return make_tl_object<td_api::usernames>(
-      vector<string>(active_usernames_), vector<string>(disabled_usernames_),
-      has_editable_username() ? active_usernames_[editable_username_pos_] : string());
-}
-
-Usernames Usernames::change_editable_username(string &&new_username) const {
-  Usernames result = *this;
-  if (has_editable_username()) {
-    if (new_username.empty()) {
-      result.active_usernames_.erase(result.active_usernames_.begin() + editable_username_pos_);
-      result.editable_username_pos_ = -1;
-    } else {
-      // keep position
-      result.active_usernames_[editable_username_pos_] = std::move(new_username);
-    }
-  } else if (!new_username.empty()) {
-    // add to the beginning
-    result.active_usernames_.insert(result.active_usernames_.begin(), std::move(new_username));
-    result.editable_username_pos_ = 0;
-  }
-  return result;
-}
-
-bool Usernames::can_toggle(const string &username) const {
-  if (td::contains(active_usernames_, username)) {
-    return !has_editable_username() || active_usernames_[editable_username_pos_] != username;
-  }
-  if (td::contains(disabled_usernames_, username)) {
-    return true;
-  }
-  return false;
-}
-
-Usernames Usernames::toggle(const string &username, bool is_active) const {
-  Usernames result = *this;
-  for (size_t i = 0; i < disabled_usernames_.size(); i++) {
-    if (disabled_usernames_[i] == username) {
-      if (is_active) {
-        // activate the username
-        result.disabled_usernames_.erase(result.disabled_usernames_.begin() + i);
-        result.active_usernames_.push_back(username);
-        // editable username position wasn't changed
-      }
-      return result;
-    }
-  }
-  for (size_t i = 0; i < active_usernames_.size(); i++) {
-    if (active_usernames_[i] == username) {
-      if (!is_active) {
-        // disable the username
-        result.active_usernames_.erase(result.active_usernames_.begin() + i);
-        result.disabled_usernames_.insert(result.disabled_usernames_.begin(), username);
-        if (result.has_editable_username() && i <= static_cast<size_t>(result.editable_username_pos_)) {
-          CHECK(i != static_cast<size_t>(result.editable_username_pos_));
-          CHECK(result.editable_username_pos_ > 0);
-          result.editable_username_pos_--;
-        }
-      }
-      return result;
-    }
-  }
-  UNREACHABLE();
-  return result;
-}
-
-Usernames Usernames::deactivate_all() const {
-  Usernames result;
-  for (size_t i = 0; i < active_usernames_.size(); i++) {
-    if (i == static_cast<size_t>(editable_username_pos_)) {
-      result.active_usernames_.push_back(active_usernames_[i]);
-      result.editable_username_pos_ = 0;
-    } else {
-      result.disabled_usernames_.push_back(active_usernames_[i]);
-    }
-  }
-  append(result.disabled_usernames_, disabled_usernames_);
-  CHECK(result.has_editable_username() == has_editable_username());
-  return result;
-}
-
-bool Usernames::can_reorder_to(const vector<string> &new_username_order) const {
-  if (new_username_order.size() != active_usernames_.size()) {
-    return false;
-  }
-  FlatHashSet<string> active_usernames;
-  for (auto &username : active_usernames_) {
-    active_usernames.insert(username);
-  }
-  for (auto &username : new_username_order) {
-    auto it = active_usernames.find(username);
-    if (it == active_usernames.end()) {
-      return false;
-    }
-    active_usernames.erase(it);
-  }
-  CHECK(active_usernames.empty());
-  return true;
-}
-
-Usernames Usernames::reorder_to(vector<string> &&new_username_order) const {
-  Usernames result;
-  result.active_usernames_ = std::move(new_username_order);
-  result.disabled_usernames_ = disabled_usernames_;
-  if (has_editable_username()) {
-    const string &editable_username = active_usernames_[editable_username_pos_];
-    for (size_t i = 0; i < result.active_usernames_.size(); i++) {
-      if (result.active_usernames_[i] == editable_username) {
-        result.editable_username_pos_ = narrow_cast<int32>(i);
-        break;
-      }
-    }
-    CHECK(result.has_editable_username());
-  }
-  return result;
-}
-
-void Usernames::check_utf8_validness() {
-  for (auto &username : active_usernames_) {
-    if (!check_utf8(username)) {
-      LOG(ERROR) << "Have invalid active username \"" << username << '"';
-      *this = Usernames();
-      return;
-    }
-  }
-  for (auto &username : disabled_usernames_) {
-    if (!check_utf8(username)) {
-      LOG(ERROR) << "Have invalid disabled username \"" << username << '"';
-      *this = Usernames();
-      return;
-    }
-  }
-}
-
-bool operator==(const Usernames &lhs, const Usernames &rhs) {
-  return lhs.active_usernames_ == rhs.active_usernames_ && lhs.disabled_usernames_ == rhs.disabled_usernames_ &&
-         lhs.editable_username_pos_ == rhs.editable_username_pos_;
-}
-
-bool operator!=(const Usernames &lhs, const Usernames &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Usernames &usernames) {
-  string_builder << "Usernames[";
-  if (usernames.has_editable_username()) {
-    string_builder << usernames.active_usernames_[usernames.editable_username_pos_];
-  }
-  if (!usernames.active_usernames_.empty()) {
-    string_builder << ", active " << usernames.active_usernames_;
-  }
-  if (!usernames.disabled_usernames_.empty()) {
-    string_builder << ", disabled " << usernames.disabled_usernames_;
-  }
-  return string_builder << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Usernames.h b/third-party/td/td/td/telegram/Usernames.h
deleted file mode 100644
index a4cfbf3718..0000000000
--- a/third-party/td/td/td/telegram/Usernames.h
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Usernames {
-  vector<string> active_usernames_;
-  vector<string> disabled_usernames_;
-  int32 editable_username_pos_ = -1;
-
-  friend bool operator==(const Usernames &lhs, const Usernames &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const Usernames &usernames);
-
-  void check_utf8_validness();
-
- public:
-  Usernames() = default;
-
-  Usernames(string &&first_username, vector<telegram_api::object_ptr<telegram_api::username>> &&usernames);
-
-  td_api::object_ptr<td_api::usernames> get_usernames_object() const;
-
-  bool is_empty() const {
-    return editable_username_pos_ == -1 && active_usernames_.empty() && disabled_usernames_.empty();
-  }
-
-  string get_first_username() const {
-    if (!has_first_username()) {
-      return string();
-    }
-    return active_usernames_[0];
-  }
-
-  bool has_first_username() const {
-    return !active_usernames_.empty();
-  }
-
-  string get_editable_username() const {
-    if (!has_editable_username()) {
-      return string();
-    }
-    return active_usernames_[editable_username_pos_];
-  }
-
-  bool has_editable_username() const {
-    return editable_username_pos_ != -1;
-  }
-
-  const vector<string> &get_active_usernames() const {
-    return active_usernames_;
-  }
-
-  Usernames change_editable_username(string &&new_username) const;
-
-  bool can_toggle(const string &username) const;
-
-  Usernames toggle(const string &username, bool is_active) const;
-
-  Usernames deactivate_all() const;
-
-  bool can_reorder_to(const vector<string> &new_username_order) const;
-
-  Usernames reorder_to(vector<string> &&new_username_order) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    CHECK(!is_empty());
-    bool has_many_active_usernames = active_usernames_.size() > 1;
-    bool has_disabled_usernames = !disabled_usernames_.empty();
-    bool has_editable_username = editable_username_pos_ != -1;
-    bool has_active_usernames = !active_usernames_.empty();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_many_active_usernames);
-    STORE_FLAG(has_disabled_usernames);
-    STORE_FLAG(has_editable_username);
-    STORE_FLAG(has_active_usernames);
-    END_STORE_FLAGS();
-    if (has_many_active_usernames) {
-      td::store(active_usernames_, storer);
-      if (has_editable_username) {
-        td::store(editable_username_pos_, storer);
-      }
-    } else if (has_active_usernames) {
-      td::store(active_usernames_[0], storer);
-    }
-    if (has_disabled_usernames) {
-      td::store(disabled_usernames_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    bool has_many_active_usernames;
-    bool has_disabled_usernames;
-    bool has_editable_username;
-    bool has_active_usernames;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_many_active_usernames);
-    PARSE_FLAG(has_disabled_usernames);
-    PARSE_FLAG(has_editable_username);
-    PARSE_FLAG(has_active_usernames);
-    END_PARSE_FLAGS();
-    if (has_many_active_usernames) {
-      td::parse(active_usernames_, parser);
-      if (has_editable_username) {
-        td::parse(editable_username_pos_, parser);
-        CHECK(static_cast<size_t>(editable_username_pos_) < active_usernames_.size());
-      }
-    } else if (has_active_usernames) {
-      active_usernames_.resize(1);
-      td::parse(active_usernames_[0], parser);
-      if (has_editable_username) {
-        editable_username_pos_ = 0;
-      }
-    }
-    if (has_disabled_usernames) {
-      td::parse(disabled_usernames_, parser);
-    }
-    check_utf8_validness();
-  }
-};
-
-bool operator==(const Usernames &lhs, const Usernames &rhs);
-bool operator!=(const Usernames &lhs, const Usernames &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Usernames &usernames);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Venue.cpp b/third-party/td/td/td/telegram/Venue.cpp
deleted file mode 100644
index 54c4c3987e..0000000000
--- a/third-party/td/td/td/telegram/Venue.cpp
+++ /dev/null
@@ -1,132 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Venue.h"
-
-#include "td/telegram/misc.h"
-#include "td/telegram/secret_api.h"
-
-namespace td {
-
-Venue::Venue(Td *td, const tl_object_ptr<telegram_api::GeoPoint> &geo_point_ptr, string title, string address,
-             string provider, string id, string type)
-    : location_(td, geo_point_ptr)
-    , title_(std::move(title))
-    , address_(std::move(address))
-    , provider_(std::move(provider))
-    , id_(std::move(id))
-    , type_(std::move(type)) {
-}
-
-Venue::Venue(Location location, string title, string address, string provider, string id, string type)
-    : location_(location)
-    , title_(std::move(title))
-    , address_(std::move(address))
-    , provider_(std::move(provider))
-    , id_(std::move(id))
-    , type_(std::move(type)) {
-}
-
-Venue::Venue(const tl_object_ptr<td_api::venue> &venue)
-    : location_(venue->location_)
-    , title_(venue->title_)
-    , address_(venue->address_)
-    , provider_(venue->provider_)
-    , id_(venue->id_)
-    , type_(venue->type_) {
-}
-
-bool Venue::empty() const {
-  return location_.empty();
-}
-
-Location &Venue::location() {
-  return location_;
-}
-
-const Location &Venue::location() const {
-  return location_;
-}
-
-tl_object_ptr<td_api::venue> Venue::get_venue_object() const {
-  return make_tl_object<td_api::venue>(location_.get_location_object(), title_, address_, provider_, id_, type_);
-}
-
-tl_object_ptr<telegram_api::inputMediaVenue> Venue::get_input_media_venue() const {
-  return make_tl_object<telegram_api::inputMediaVenue>(location_.get_input_geo_point(), title_, address_, provider_,
-                                                       id_, type_);
-}
-
-SecretInputMedia Venue::get_secret_input_media_venue() const {
-  return SecretInputMedia{nullptr,
-                          make_tl_object<secret_api::decryptedMessageMediaVenue>(
-                              location_.get_latitude(), location_.get_longitude(), title_, address_, provider_, id_)};
-}
-
-tl_object_ptr<telegram_api::inputBotInlineMessageMediaVenue> Venue::get_input_bot_inline_message_media_venue(
-    tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup) const {
-  int32 flags = 0;
-  if (reply_markup != nullptr) {
-    flags |= telegram_api::inputBotInlineMessageMediaVenue::REPLY_MARKUP_MASK;
-  }
-  return make_tl_object<telegram_api::inputBotInlineMessageMediaVenue>(
-      flags, location_.get_input_geo_point(), title_, address_, provider_, id_, type_, std::move(reply_markup));
-}
-
-telegram_api::object_ptr<telegram_api::mediaAreaVenue> Venue::get_input_media_area_venue(
-    telegram_api::object_ptr<telegram_api::mediaAreaCoordinates> &&coordinates) const {
-  return telegram_api::make_object<telegram_api::mediaAreaVenue>(std::move(coordinates), location_.get_fake_geo_point(),
-                                                                 title_, address_, provider_, id_, type_);
-}
-
-bool operator==(const Venue &lhs, const Venue &rhs) {
-  return lhs.location_ == rhs.location_ && lhs.title_ == rhs.title_ && lhs.address_ == rhs.address_ &&
-         lhs.provider_ == rhs.provider_ && lhs.id_ == rhs.id_ && lhs.type_ == rhs.type_;
-}
-
-bool operator!=(const Venue &lhs, const Venue &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Venue &venue) {
-  return string_builder << "Venue[location = " << venue.location_ << ", title = " << venue.title_
-                        << ", address = " << venue.address_ << ", provider = " << venue.provider_
-                        << ", ID = " << venue.id_ << ", type = " << venue.type_ << "]";
-}
-
-Result<Venue> process_input_message_venue(tl_object_ptr<td_api::InputMessageContent> &&input_message_content) {
-  CHECK(input_message_content != nullptr);
-  CHECK(input_message_content->get_id() == td_api::inputMessageVenue::ID);
-  auto venue = std::move(static_cast<td_api::inputMessageVenue *>(input_message_content.get())->venue_);
-  if (venue == nullptr) {
-    return Status::Error(400, "Venue must be non-empty");
-  }
-
-  if (!clean_input_string(venue->title_)) {
-    return Status::Error(400, "Venue title must be encoded in UTF-8");
-  }
-  if (!clean_input_string(venue->address_)) {
-    return Status::Error(400, "Venue address must be encoded in UTF-8");
-  }
-  if (!clean_input_string(venue->provider_)) {
-    return Status::Error(400, "Venue provider must be encoded in UTF-8");
-  }
-  if (!clean_input_string(venue->id_)) {
-    return Status::Error(400, "Venue identifier must be encoded in UTF-8");
-  }
-  if (!clean_input_string(venue->type_)) {
-    return Status::Error(400, "Venue type must be encoded in UTF-8");
-  }
-
-  Venue result(venue);
-  if (result.empty()) {
-    return Status::Error(400, "Wrong venue location specified");
-  }
-
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Venue.h b/third-party/td/td/td/telegram/Venue.h
deleted file mode 100644
index 350235a49f..0000000000
--- a/third-party/td/td/td/telegram/Venue.h
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Location.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class Td;
-
-class Venue {
-  Location location_;
-  string title_;
-  string address_;
-  string provider_;
-  string id_;
-  string type_;
-
-  friend bool operator==(const Venue &lhs, const Venue &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const Venue &venue);
-
- public:
-  Venue() = default;
-
-  Venue(Td *td, const tl_object_ptr<telegram_api::GeoPoint> &geo_point_ptr, string title, string address,
-        string provider, string id, string type);
-
-  Venue(Location location, string title, string address, string provider, string id, string type);
-
-  explicit Venue(const tl_object_ptr<td_api::venue> &venue);
-
-  bool empty() const;
-
-  bool is_same(const string &provider, const string &id) const {
-    return provider_ == provider && id_ == id;
-  }
-
-  Location &location();
-
-  const Location &location() const;
-
-  tl_object_ptr<td_api::venue> get_venue_object() const;
-
-  tl_object_ptr<telegram_api::inputMediaVenue> get_input_media_venue() const;
-
-  SecretInputMedia get_secret_input_media_venue() const;
-
-  tl_object_ptr<telegram_api::inputBotInlineMessageMediaVenue> get_input_bot_inline_message_media_venue(
-      tl_object_ptr<telegram_api::ReplyMarkup> &&reply_markup) const;
-
-  telegram_api::object_ptr<telegram_api::mediaAreaVenue> get_input_media_area_venue(
-      telegram_api::object_ptr<telegram_api::mediaAreaCoordinates> &&coordinates) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    store(location_, storer);
-    store(title_, storer);
-    store(address_, storer);
-    store(provider_, storer);
-    store(id_, storer);
-    store(type_, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    parse(location_, parser);
-    parse(title_, parser);
-    parse(address_, parser);
-    parse(provider_, parser);
-    parse(id_, parser);
-    if (parser.version() >= static_cast<int32>(Version::AddVenueType)) {
-      parse(type_, parser);
-    }
-  }
-};
-
-bool operator==(const Venue &lhs, const Venue &rhs);
-bool operator!=(const Venue &lhs, const Venue &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Venue &venue);
-
-Result<Venue> process_input_message_venue(td_api::object_ptr<td_api::InputMessageContent> &&input_message_content)
-    TD_WARN_UNUSED_RESULT;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VerificationStatus.cpp b/third-party/td/td/td/telegram/VerificationStatus.cpp
deleted file mode 100644
index cdda090230..0000000000
--- a/third-party/td/td/td/telegram/VerificationStatus.cpp
+++ /dev/null
@@ -1,20 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/VerificationStatus.h"
-
-namespace td {
-
-td_api::object_ptr<td_api::verificationStatus> get_verification_status_object(
-    Td *td, bool is_verified, bool is_scam, bool is_fake, CustomEmojiId bot_verification_custom_emoji_id) {
-  if (!is_verified && !is_scam && !is_fake && !bot_verification_custom_emoji_id.is_valid()) {
-    return nullptr;
-  }
-  return td_api::make_object<td_api::verificationStatus>(is_verified, is_scam, is_fake,
-                                                         bot_verification_custom_emoji_id.get());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VerificationStatus.h b/third-party/td/td/td/telegram/VerificationStatus.h
deleted file mode 100644
index c35d813ce5..0000000000
--- a/third-party/td/td/td/telegram/VerificationStatus.h
+++ /dev/null
@@ -1,19 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/td_api.h"
-
-namespace td {
-
-class Td;
-
-td_api::object_ptr<td_api::verificationStatus> get_verification_status_object(
-    Td *td, bool is_verified, bool is_scam, bool is_fake, CustomEmojiId bot_verification_custom_emoji_id);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/Version.h b/third-party/td/td/td/telegram/Version.h
deleted file mode 100644
index a3df017eba..0000000000
--- a/third-party/td/td/td/telegram/Version.h
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-constexpr int32 MTPROTO_LAYER = 201;
-
-enum class Version : int32 {
-  Initial,  // 0
-  StoreFileId,
-  AddKeyHashToSecretChat,
-  AddDurationToAnimation,
-  FixStoreGameWithoutAnimation,
-  AddAccessHashToSecretChat,  // 5
-  StoreFileOwnerId,
-  StoreFileEncryptionKey,
-  NetStatsCountDuration,
-  FixWebPageInstantViewDatabase,
-  FixMinUsers,  // 10
-  FixPageBlockAudioEmptyFile,
-  AddMessageInvoiceProviderData,
-  AddCaptionEntities,
-  AddVenueType,
-  AddTermsOfService,  // 15
-  AddContactVcard,
-  AddMessageUnsupportedVersion,
-  SupportInstantView2_0,
-  AddNotificationGroupInfoMaxRemovedMessageId,
-  SupportMinithumbnails,  // 20
-  AddVideoCallsSupport,
-  AddPhotoSizeSource,
-  AddFolders,
-  SupportPolls2_0,
-  AddDiceEmoji,  // 25
-  AddAnimationStickers,
-  AddDialogPhotoHasAnimation,
-  AddPhotoProgressiveSizes,
-  AddLiveLocationHeading,
-  AddLiveLocationProximityAlertDistance,  // 30
-  SupportBannedChannels,
-  RemovePhotoVolumeAndLocalId,
-  Support64BitIds,
-  AddInviteLinksRequiringApproval,
-  AddKeyboardButtonFlags,  // 35
-  AddAudioFlags,
-  UseServerForwardAsCopy,
-  AddMainDialogListPosition,
-  AddVoiceNoteFlags,
-  AddMessageStickerFlags,  // 40
-  AddStickerSetListFlags,
-  AddInputInvoiceFlags,
-  AddVideoNoteFlags,
-  AddMessageChatSetTtlFlags,
-  AddMessageMediaSpoiler,  // 45
-  MakeParticipantFlags64Bit,
-  AddDocumentFlags,
-  AddUserFlags2,
-  AddMessageTextFlags,
-  AddPageBlockChatLinkFlags,  // 50
-  SupportRepliesInOtherChats,
-  SupportMultipleSharedUsers,
-  SupportMoreEmojiGroups,
-  SupportStarGiveaways,
-  Next
-};
-
-enum class DbVersion : int32 {
-  CreateDialogDb = 3,
-  AddMessageDbMediaIndex,
-  AddMessageDb30MediaIndex,
-  AddMessageDbFts,
-  AddMessagesCallIndex,
-  FixFileRemoteLocationKeyBug,
-  AddNotificationsSupport,
-  AddFolders,
-  AddScheduledMessages,
-  StorePinnedDialogsInBinlog,
-  AddMessageThreadSupport,
-  AddMessageThreadDatabase,
-  Next
-};
-
-inline constexpr int32 current_db_version() {
-  return static_cast<int32>(DbVersion::Next) - 1;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VideoNotesManager.cpp b/third-party/td/td/td/telegram/VideoNotesManager.cpp
deleted file mode 100644
index a6f74e2cb0..0000000000
--- a/third-party/td/td/td/telegram/VideoNotesManager.cpp
+++ /dev/null
@@ -1,252 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/VideoNotesManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/OptionManager.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TranscriptionManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-VideoNotesManager::VideoNotesManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-VideoNotesManager::~VideoNotesManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), video_notes_);
-}
-
-void VideoNotesManager::tear_down() {
-  parent_.reset();
-}
-
-int32 VideoNotesManager::get_video_note_duration(FileId file_id) const {
-  auto video_note = get_video_note(file_id);
-  CHECK(video_note != nullptr);
-  return video_note->duration;
-}
-
-TranscriptionInfo *VideoNotesManager::get_video_note_transcription_info(FileId file_id, bool allow_creation) {
-  auto video_note = get_video_note(file_id);
-  CHECK(video_note != nullptr);
-  if (video_note->transcription_info == nullptr && allow_creation) {
-    video_note->transcription_info = make_unique<TranscriptionInfo>();
-  }
-  return video_note->transcription_info.get();
-}
-
-tl_object_ptr<td_api::videoNote> VideoNotesManager::get_video_note_object(FileId file_id) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto video_note = get_video_note(file_id);
-  auto speech_recognition_result = video_note->transcription_info == nullptr
-                                       ? nullptr
-                                       : video_note->transcription_info->get_speech_recognition_result_object();
-  return make_tl_object<td_api::videoNote>(
-      video_note->duration, video_note->waveform, video_note->dimensions.width,
-      get_minithumbnail_object(video_note->minithumbnail),
-      get_thumbnail_object(td_->file_manager_.get(), video_note->thumbnail, PhotoFormat::Jpeg),
-      std::move(speech_recognition_result), td_->file_manager_->get_file_object(file_id));
-}
-
-FileId VideoNotesManager::on_get_video_note(unique_ptr<VideoNote> new_video_note, bool replace) {
-  auto file_id = new_video_note->file_id;
-  CHECK(file_id.is_valid());
-  LOG(INFO) << "Receive video note " << file_id;
-  auto &v = video_notes_[file_id];
-  if (v == nullptr) {
-    v = std::move(new_video_note);
-  } else if (replace) {
-    CHECK(v->file_id == new_video_note->file_id);
-    if (v->duration != new_video_note->duration || v->dimensions != new_video_note->dimensions ||
-        v->waveform != new_video_note->waveform || v->minithumbnail != new_video_note->minithumbnail ||
-        v->thumbnail != new_video_note->thumbnail) {
-      LOG(DEBUG) << "Video note " << file_id << " info has changed";
-      v->duration = new_video_note->duration;
-      v->dimensions = new_video_note->dimensions;
-      v->waveform = std::move(new_video_note->waveform);
-      v->minithumbnail = std::move(new_video_note->minithumbnail);
-      v->thumbnail = std::move(new_video_note->thumbnail);
-    }
-    if (TranscriptionInfo::update_from(v->transcription_info, std::move(new_video_note->transcription_info))) {
-      td_->transcription_manager_->on_transcription_completed(file_id);
-    }
-  }
-  return file_id;
-}
-
-VideoNotesManager::VideoNote *VideoNotesManager::get_video_note(FileId file_id) {
-  return video_notes_.get_pointer(file_id);
-}
-
-const VideoNotesManager::VideoNote *VideoNotesManager::get_video_note(FileId file_id) const {
-  return video_notes_.get_pointer(file_id);
-}
-
-FileId VideoNotesManager::get_video_note_thumbnail_file_id(FileId file_id) const {
-  auto video_note = get_video_note(file_id);
-  CHECK(video_note != nullptr);
-  return video_note->thumbnail.file_id;
-}
-
-void VideoNotesManager::delete_video_note_thumbnail(FileId file_id) {
-  auto &video_note = video_notes_[file_id];
-  CHECK(video_note != nullptr);
-  video_note->thumbnail = PhotoSize();
-}
-
-FileId VideoNotesManager::dup_video_note(FileId new_id, FileId old_id) {
-  const VideoNote *old_video_note = get_video_note(old_id);
-  CHECK(old_video_note != nullptr);
-  auto &new_video_note = video_notes_[new_id];
-  if (new_video_note != nullptr) {
-    return new_id;
-  }
-  new_video_note = make_unique<VideoNote>();
-  new_video_note->file_id = new_id;
-  new_video_note->duration = old_video_note->duration;
-  new_video_note->dimensions = old_video_note->dimensions;
-  new_video_note->waveform = old_video_note->waveform;
-  new_video_note->minithumbnail = old_video_note->minithumbnail;
-  new_video_note->thumbnail = old_video_note->thumbnail;
-  new_video_note->transcription_info = TranscriptionInfo::copy_if_transcribed(old_video_note->transcription_info);
-  return new_id;
-}
-
-void VideoNotesManager::merge_video_notes(FileId new_id, FileId old_id) {
-  CHECK(old_id.is_valid() && new_id.is_valid());
-  CHECK(new_id != old_id);
-
-  LOG(INFO) << "Merge video notes " << new_id << " and " << old_id;
-  const VideoNote *old_ = get_video_note(old_id);
-  CHECK(old_ != nullptr);
-
-  const auto *new_ = get_video_note(new_id);
-  if (new_ == nullptr) {
-    dup_video_note(new_id, old_id);
-  }
-  LOG_STATUS(td_->file_manager_->merge(new_id, old_id));
-}
-
-void VideoNotesManager::create_video_note(FileId file_id, string minithumbnail, PhotoSize thumbnail, int32 duration,
-                                          Dimensions dimensions, string waveform, bool replace) {
-  auto v = make_unique<VideoNote>();
-  v->file_id = file_id;
-  v->duration = max(duration, 0);
-  if (dimensions.width == dimensions.height && dimensions.width <= 640) {
-    v->dimensions = dimensions;
-  } else {
-    LOG(INFO) << "Receive wrong video note dimensions " << dimensions;
-  }
-  v->waveform = std::move(waveform);
-  if (!td_->auth_manager_->is_bot()) {
-    v->minithumbnail = std::move(minithumbnail);
-  }
-  v->thumbnail = std::move(thumbnail);
-  on_get_video_note(std::move(v), replace);
-}
-
-SecretInputMedia VideoNotesManager::get_secret_input_media(
-    FileId video_note_file_id, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-    BufferSlice thumbnail, int32 layer) const {
-  const VideoNote *video_note = get_video_note(video_note_file_id);
-  CHECK(video_note != nullptr);
-  auto file_view = td_->file_manager_->get_file_view(video_note_file_id);
-  if (!file_view.is_encrypted_secret() || file_view.encryption_key().empty()) {
-    return SecretInputMedia{};
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr) {
-    input_file = main_remote_location->as_input_encrypted_file();
-  }
-  if (!input_file) {
-    return SecretInputMedia{};
-  }
-  if (video_note->thumbnail.file_id.is_valid() && thumbnail.empty()) {
-    return SecretInputMedia{};
-  }
-  vector<secret_api::object_ptr<secret_api::DocumentAttribute>> attributes;
-  attributes.push_back(secret_api::make_object<secret_api::documentAttributeVideo>(
-      0, true, video_note->duration, video_note->dimensions.width, video_note->dimensions.height));
-
-  return {std::move(input_file),
-          std::move(thumbnail),
-          video_note->thumbnail.dimensions,
-          "video/mp4",
-          file_view,
-          std::move(attributes),
-          string(),
-          layer};
-}
-
-tl_object_ptr<telegram_api::InputMedia> VideoNotesManager::get_input_media(
-    FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, int32 ttl) const {
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return nullptr;
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && !main_remote_location->is_web() && input_file == nullptr) {
-    int32 flags = 0;
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaDocument::TTL_SECONDS_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaDocument>(
-        flags, false, main_remote_location->as_input_document(), nullptr, 0, ttl, string());
-  }
-  const auto *url = file_view.get_url();
-  if (url != nullptr) {
-    int32 flags = 0;
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaDocumentExternal::TTL_SECONDS_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaDocumentExternal>(flags, false, *url, ttl, nullptr, 0);
-  }
-
-  if (input_file != nullptr) {
-    const VideoNote *video_note = get_video_note(file_id);
-    CHECK(video_note != nullptr);
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    auto suggested_video_note_length =
-        narrow_cast<int32>(td_->option_manager_->get_option_integer("suggested_video_note_length", 384));
-    attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeVideo>(
-        0, true, false, false, video_note->duration,
-        video_note->dimensions.width ? video_note->dimensions.width : suggested_video_note_length,
-        video_note->dimensions.height ? video_note->dimensions.height : suggested_video_note_length, 0, 0.0, string()));
-    int32 flags = 0;
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaUploadedDocument::TTL_SECONDS_MASK;
-    }
-    if (input_thumbnail != nullptr) {
-      flags |= telegram_api::inputMediaUploadedDocument::THUMB_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-        flags, true, false, false, std::move(input_file), std::move(input_thumbnail), "video/mp4",
-        std::move(attributes), vector<telegram_api::object_ptr<telegram_api::InputDocument>>(), nullptr, 0, ttl);
-  } else {
-    CHECK(main_remote_location == nullptr);
-  }
-
-  return nullptr;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VideoNotesManager.h b/third-party/td/td/td/telegram/VideoNotesManager.h
deleted file mode 100644
index c783e8a12c..0000000000
--- a/third-party/td/td/td/telegram/VideoNotesManager.h
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TranscriptionInfo.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-namespace td {
-
-class Td;
-
-class VideoNotesManager final : public Actor {
- public:
-  VideoNotesManager(Td *td, ActorShared<> parent);
-  VideoNotesManager(const VideoNotesManager &) = delete;
-  VideoNotesManager &operator=(const VideoNotesManager &) = delete;
-  VideoNotesManager(VideoNotesManager &&) = delete;
-  VideoNotesManager &operator=(VideoNotesManager &&) = delete;
-  ~VideoNotesManager() final;
-
-  int32 get_video_note_duration(FileId file_id) const;
-
-  TranscriptionInfo *get_video_note_transcription_info(FileId file_id, bool allow_creation);
-
-  tl_object_ptr<td_api::videoNote> get_video_note_object(FileId file_id) const;
-
-  void create_video_note(FileId file_id, string minithumbnail, PhotoSize thumbnail, int32 duration,
-                         Dimensions dimensions, string waveform, bool replace);
-
-  tl_object_ptr<telegram_api::InputMedia> get_input_media(
-      FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, int32 ttl) const;
-
-  SecretInputMedia get_secret_input_media(FileId video_note_file_id,
-                                          telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                          BufferSlice thumbnail, int32 layer) const;
-
-  FileId get_video_note_thumbnail_file_id(FileId file_id) const;
-
-  void delete_video_note_thumbnail(FileId file_id);
-
-  FileId dup_video_note(FileId new_id, FileId old_id);
-
-  void merge_video_notes(FileId new_id, FileId old_id);
-
-  template <class StorerT>
-  void store_video_note(FileId file_id, StorerT &storer) const;
-
-  template <class ParserT>
-  FileId parse_video_note(ParserT &parser);
-
- private:
-  class VideoNote {
-   public:
-    int32 duration = 0;
-    Dimensions dimensions;
-    string waveform;
-    string minithumbnail;
-    PhotoSize thumbnail;
-    unique_ptr<TranscriptionInfo> transcription_info;
-
-    FileId file_id;
-  };
-
-  VideoNote *get_video_note(FileId file_id);
-
-  const VideoNote *get_video_note(FileId file_id) const;
-
-  FileId on_get_video_note(unique_ptr<VideoNote> new_video_note, bool replace);
-
-  void tear_down() final;
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  WaitFreeHashMap<FileId, unique_ptr<VideoNote>, FileIdHash> video_notes_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VideoNotesManager.hpp b/third-party/td/td/td/telegram/VideoNotesManager.hpp
deleted file mode 100644
index ddcd964c82..0000000000
--- a/third-party/td/td/td/telegram/VideoNotesManager.hpp
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/VideoNotesManager.h"
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/PhotoSize.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void VideoNotesManager::store_video_note(FileId file_id, StorerT &storer) const {
-  const VideoNote *video_note = get_video_note(file_id);
-  CHECK(video_note != nullptr);
-  bool has_duration = video_note->duration != 0;
-  bool has_minithumbnail = !video_note->minithumbnail.empty();
-  bool has_thumbnail = video_note->thumbnail.file_id.is_valid();
-  bool is_transcribed = video_note->transcription_info != nullptr && video_note->transcription_info->is_transcribed();
-  bool has_waveform = !video_note->waveform.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_duration);
-  STORE_FLAG(has_minithumbnail);
-  STORE_FLAG(has_thumbnail);
-  STORE_FLAG(is_transcribed);
-  STORE_FLAG(has_waveform);
-  END_STORE_FLAGS();
-  if (has_duration) {
-    store(video_note->duration, storer);
-  }
-  store(video_note->dimensions, storer);
-  if (has_minithumbnail) {
-    store(video_note->minithumbnail, storer);
-  }
-  if (has_thumbnail) {
-    store(video_note->thumbnail, storer);
-  }
-  if (is_transcribed) {
-    store(video_note->transcription_info, storer);
-  }
-  if (has_waveform) {
-    store(video_note->waveform, storer);
-  }
-  store(file_id, storer);
-}
-
-template <class ParserT>
-FileId VideoNotesManager::parse_video_note(ParserT &parser) {
-  auto video_note = make_unique<VideoNote>();
-  bool has_duration;
-  bool has_minithumbnail;
-  bool has_thumbnail;
-  bool is_transcribed;
-  bool has_waveform;
-  if (parser.version() >= static_cast<int32>(Version::AddVideoNoteFlags)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_duration);
-    PARSE_FLAG(has_minithumbnail);
-    PARSE_FLAG(has_thumbnail);
-    PARSE_FLAG(is_transcribed);
-    PARSE_FLAG(has_waveform);
-    END_PARSE_FLAGS();
-  } else {
-    has_duration = true;
-    has_minithumbnail = parser.version() >= static_cast<int32>(Version::SupportMinithumbnails);
-    has_thumbnail = true;
-    is_transcribed = false;
-    has_waveform = false;
-  }
-  if (has_duration) {
-    parse(video_note->duration, parser);
-  }
-  parse(video_note->dimensions, parser);
-  if (has_minithumbnail) {
-    parse(video_note->minithumbnail, parser);
-  }
-  if (has_thumbnail) {
-    parse(video_note->thumbnail, parser);
-  }
-  if (is_transcribed) {
-    parse(video_note->transcription_info, parser);
-  }
-  if (has_waveform) {
-    parse(video_note->waveform, parser);
-  }
-  parse(video_note->file_id, parser);
-  if (parser.get_error() != nullptr || !video_note->file_id.is_valid()) {
-    return FileId();
-  }
-  return on_get_video_note(std::move(video_note), false);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VideosManager.cpp b/third-party/td/td/td/telegram/VideosManager.cpp
deleted file mode 100644
index 81036b3c7d..0000000000
--- a/third-party/td/td/td/telegram/VideosManager.cpp
+++ /dev/null
@@ -1,403 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/VideosManager.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-#include <cmath>
-
-namespace td {
-
-VideosManager::VideosManager(Td *td) : td_(td) {
-}
-
-VideosManager::~VideosManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), videos_);
-}
-
-int32 VideosManager::get_video_duration(FileId file_id) const {
-  auto video = get_video(file_id);
-  CHECK(video != nullptr);
-  return video->duration;
-}
-
-td_api::object_ptr<td_api::video> VideosManager::get_video_object(FileId file_id) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto video = get_video(file_id);
-  CHECK(video != nullptr);
-  auto thumbnail = video->animated_thumbnail.file_id.is_valid()
-                       ? get_thumbnail_object(td_->file_manager_.get(), video->animated_thumbnail, PhotoFormat::Mpeg4)
-                       : get_thumbnail_object(td_->file_manager_.get(), video->thumbnail, PhotoFormat::Jpeg);
-  return td_api::make_object<td_api::video>(video->duration, video->dimensions.width, video->dimensions.height,
-                                            video->file_name, video->mime_type, video->has_stickers,
-                                            video->supports_streaming, get_minithumbnail_object(video->minithumbnail),
-                                            std::move(thumbnail), td_->file_manager_->get_file_object(file_id));
-}
-
-td_api::object_ptr<td_api::storyVideo> VideosManager::get_story_video_object(FileId file_id) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto video = get_video(file_id);
-  CHECK(video != nullptr);
-  auto thumbnail = video->animated_thumbnail.file_id.is_valid()
-                       ? get_thumbnail_object(td_->file_manager_.get(), video->animated_thumbnail, PhotoFormat::Mpeg4)
-                       : get_thumbnail_object(td_->file_manager_.get(), video->thumbnail, PhotoFormat::Jpeg);
-  return td_api::make_object<td_api::storyVideo>(
-      video->precise_duration, video->dimensions.width, video->dimensions.height, video->has_stickers,
-      video->is_animation, get_minithumbnail_object(video->minithumbnail), std::move(thumbnail),
-      video->preload_prefix_size, video->start_ts, td_->file_manager_->get_file_object(file_id));
-}
-
-td_api::object_ptr<td_api::alternativeVideo> VideosManager::get_alternative_video_object(
-    FileId file_id, const vector<FileId> &hls_file_ids) const {
-  auto video = get_video(file_id);
-  CHECK(video != nullptr);
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  CHECK(full_remote_location != nullptr);
-  CHECK(full_remote_location->is_document());
-  int64 document_id = full_remote_location->get_id();
-  auto name = PSTRING() << "mtproto:" << document_id;
-  for (const auto &hls_file_id : hls_file_ids) {
-    if (td_->documents_manager_->get_document_file_name(hls_file_id) == name) {
-      return td_api::make_object<td_api::alternativeVideo>(
-          document_id, video->dimensions.width, video->dimensions.height, video->codec,
-          td_->file_manager_->get_file_object(hls_file_id), td_->file_manager_->get_file_object(file_id));
-    }
-  }
-  return nullptr;
-}
-
-FileId VideosManager::on_get_video(unique_ptr<Video> new_video, bool replace) {
-  auto file_id = new_video->file_id;
-  CHECK(file_id.is_valid());
-  LOG(INFO) << "Receive video " << file_id;
-  auto &v = videos_[file_id];
-  if (v == nullptr) {
-    v = std::move(new_video);
-  } else if (replace) {
-    CHECK(v->file_id == new_video->file_id);
-    if (v->mime_type != new_video->mime_type || v->file_name != new_video->file_name ||
-        v->minithumbnail != new_video->minithumbnail || v->thumbnail != new_video->thumbnail ||
-        v->animated_thumbnail != new_video->animated_thumbnail || v->duration != new_video->duration ||
-        v->precise_duration != new_video->precise_duration || v->dimensions != new_video->dimensions ||
-        v->supports_streaming != new_video->supports_streaming || v->is_animation != new_video->is_animation ||
-        v->preload_prefix_size != new_video->preload_prefix_size ||
-        std::fabs(v->start_ts - new_video->start_ts) > 1e-3 || v->codec != new_video->codec) {
-      LOG(DEBUG) << "Video " << file_id << " info has changed";
-      v->mime_type = std::move(new_video->mime_type);
-      v->file_name = std::move(new_video->file_name);
-      v->minithumbnail = std::move(new_video->minithumbnail);
-      v->thumbnail = std::move(new_video->thumbnail);
-      v->animated_thumbnail = std::move(new_video->animated_thumbnail);
-      v->duration = new_video->duration;
-      v->precise_duration = new_video->precise_duration;
-      v->dimensions = new_video->dimensions;
-      v->supports_streaming = new_video->supports_streaming;
-      v->is_animation = new_video->is_animation;
-      v->preload_prefix_size = new_video->preload_prefix_size;
-      v->start_ts = new_video->start_ts;
-      v->codec = std::move(new_video->codec);
-    }
-    if (v->has_stickers != new_video->has_stickers && new_video->has_stickers) {
-      v->has_stickers = new_video->has_stickers;
-    }
-    if (v->sticker_file_ids != new_video->sticker_file_ids && !new_video->sticker_file_ids.empty()) {
-      v->sticker_file_ids = std::move(new_video->sticker_file_ids);
-    }
-  }
-  return file_id;
-}
-
-const VideosManager::Video *VideosManager::get_video(FileId file_id) const {
-  return videos_.get_pointer(file_id);
-}
-
-FileId VideosManager::get_video_thumbnail_file_id(FileId file_id) const {
-  auto video = get_video(file_id);
-  CHECK(video != nullptr);
-  return video->thumbnail.file_id;
-}
-
-FileId VideosManager::get_video_animated_thumbnail_file_id(FileId file_id) const {
-  auto video = get_video(file_id);
-  CHECK(video != nullptr);
-  return video->animated_thumbnail.file_id;
-}
-
-void VideosManager::delete_video_thumbnail(FileId file_id) {
-  auto &video = videos_[file_id];
-  CHECK(video != nullptr);
-  video->thumbnail = PhotoSize();
-  video->animated_thumbnail = AnimationSize();
-}
-
-FileId VideosManager::dup_video(FileId new_id, FileId old_id) {
-  const Video *old_video = get_video(old_id);
-  CHECK(old_video != nullptr);
-  auto &new_video = videos_[new_id];
-  if (new_video != nullptr) {
-    return new_id;
-  }
-  new_video = make_unique<Video>(*old_video);
-  new_video->file_id = new_id;
-  return new_id;
-}
-
-void VideosManager::merge_videos(FileId new_id, FileId old_id) {
-  CHECK(old_id.is_valid() && new_id.is_valid());
-  CHECK(new_id != old_id);
-
-  LOG(INFO) << "Merge videos " << new_id << " and " << old_id;
-  const Video *old_ = get_video(old_id);
-  CHECK(old_ != nullptr);
-
-  const auto *new_ = get_video(new_id);
-  if (new_ == nullptr) {
-    dup_video(new_id, old_id);
-  } else if (!old_->mime_type.empty() && old_->mime_type != new_->mime_type) {
-    LOG(INFO) << "Video has changed: mime_type = (" << old_->mime_type << ", " << new_->mime_type << ")";
-  }
-  LOG_STATUS(td_->file_manager_->merge(new_id, old_id));
-}
-
-void VideosManager::create_video(FileId file_id, string minithumbnail, PhotoSize thumbnail,
-                                 AnimationSize animated_thumbnail, bool has_stickers, vector<FileId> &&sticker_file_ids,
-                                 string file_name, string mime_type, int32 duration, double precise_duration,
-                                 Dimensions dimensions, bool supports_streaming, bool is_animation,
-                                 int32 preload_prefix_size, double start_ts, string &&codec, bool replace) {
-  auto v = make_unique<Video>();
-  v->file_id = file_id;
-  v->file_name = std::move(file_name);
-  v->mime_type = std::move(mime_type);
-  v->duration = max(duration, 0);
-  v->precise_duration = duration == 0 ? 0.0 : clamp(precise_duration, duration - 1.0, duration + 0.0);
-  v->dimensions = dimensions;
-  if (!td_->auth_manager_->is_bot()) {
-    v->minithumbnail = std::move(minithumbnail);
-  }
-  v->thumbnail = std::move(thumbnail);
-  v->animated_thumbnail = std::move(animated_thumbnail);
-  v->supports_streaming = supports_streaming;
-  v->is_animation = is_animation;
-  v->preload_prefix_size = preload_prefix_size;
-  v->start_ts = start_ts;
-  v->has_stickers = has_stickers;
-  v->sticker_file_ids = std::move(sticker_file_ids);
-  v->codec = std::move(codec);
-  on_get_video(std::move(v), replace);
-}
-
-SecretInputMedia VideosManager::get_secret_input_media(
-    FileId video_file_id, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file, const string &caption,
-    BufferSlice thumbnail, int32 layer) const {
-  const Video *video = get_video(video_file_id);
-  CHECK(video != nullptr);
-  auto file_view = td_->file_manager_->get_file_view(video_file_id);
-  if (!file_view.is_encrypted_secret() || file_view.encryption_key().empty()) {
-    return SecretInputMedia{};
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr) {
-    input_file = main_remote_location->as_input_encrypted_file();
-  }
-  if (!input_file) {
-    return {};
-  }
-  if (video->thumbnail.file_id.is_valid() && thumbnail.empty()) {
-    return {};
-  }
-  vector<secret_api::object_ptr<secret_api::DocumentAttribute>> attributes;
-  attributes.emplace_back(secret_api::make_object<secret_api::documentAttributeVideo>(
-      0, false, video->duration, video->dimensions.width, video->dimensions.height));
-
-  return {std::move(input_file),
-          std::move(thumbnail),
-          video->thumbnail.dimensions,
-          video->mime_type,
-          file_view,
-          std::move(attributes),
-          caption,
-          layer};
-}
-
-tl_object_ptr<telegram_api::InputMedia> VideosManager::get_input_media(
-    FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-    telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, const Photo &cover, int32 start_timestamp,
-    int32 ttl, bool has_spoiler) const {
-  if (!file_id.is_valid()) {
-    LOG_IF(ERROR, ttl == 0) << "Video has invalid file_id";
-    return nullptr;
-  }
-  telegram_api::object_ptr<telegram_api::InputPhoto> input_cover;
-  if (!cover.is_empty()) {
-    auto cover_file_id = get_photo_any_file_id(cover);
-    if (cover_file_id.is_valid()) {
-      auto cover_file_view = td_->file_manager_->get_file_view(cover_file_id);
-      if (!cover_file_view.is_encrypted()) {
-        const auto *main_remote_location = cover_file_view.get_main_remote_location();
-        if (main_remote_location != nullptr && !main_remote_location->is_web()) {
-          input_cover = main_remote_location->as_input_photo();
-        }
-      }
-    }
-  }
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return nullptr;
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && !main_remote_location->is_web() && input_file == nullptr) {
-    int32 flags = 0;
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaDocument::TTL_SECONDS_MASK;
-    }
-    if (start_timestamp != 0) {
-      flags |= telegram_api::inputMediaDocument::VIDEO_TIMESTAMP_MASK;
-    }
-    if (input_cover != nullptr) {
-      flags |= telegram_api::inputMediaDocument::VIDEO_COVER_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaDocument>(
-        flags, has_spoiler, main_remote_location->as_input_document(), std::move(input_cover), start_timestamp, ttl,
-        string());
-  }
-  const auto *url = file_view.get_url();
-  if (url != nullptr) {
-    int32 flags = 0;
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaDocumentExternal::TTL_SECONDS_MASK;
-    }
-    if (start_timestamp != 0) {
-      flags |= telegram_api::inputMediaDocumentExternal::VIDEO_TIMESTAMP_MASK;
-    }
-    if (input_cover != nullptr) {
-      flags |= telegram_api::inputMediaDocumentExternal::VIDEO_COVER_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaDocumentExternal>(flags, has_spoiler, *url, ttl,
-                                                                               std::move(input_cover), start_timestamp);
-  }
-
-  if (input_file != nullptr) {
-    const Video *video = get_video(file_id);
-    CHECK(video != nullptr);
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    {
-      int32 attribute_flags = 0;
-      if (video->start_ts > 0.0) {
-        attribute_flags |= telegram_api::documentAttributeVideo::VIDEO_START_TS_MASK;
-      }
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeVideo>(
-          attribute_flags, false, video->supports_streaming, video->is_animation, video->precise_duration,
-          video->dimensions.width, video->dimensions.height, 0, video->start_ts, string()));
-    }
-    if (!video->file_name.empty()) {
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeFilename>(video->file_name));
-    }
-    int32 flags = 0;
-    vector<tl_object_ptr<telegram_api::InputDocument>> added_stickers;
-    if (video->has_stickers) {
-      flags |= telegram_api::inputMediaUploadedDocument::STICKERS_MASK;
-      added_stickers = td_->file_manager_->get_input_documents(video->sticker_file_ids);
-    }
-    string mime_type = video->mime_type;
-    if (!begins_with(mime_type, "video/") || ttl > 0) {
-      mime_type = "video/mp4";
-    }
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaUploadedDocument::TTL_SECONDS_MASK;
-    }
-    if (input_thumbnail != nullptr) {
-      flags |= telegram_api::inputMediaUploadedDocument::THUMB_MASK;
-    }
-    if (start_timestamp != 0) {
-      flags |= telegram_api::inputMediaUploadedDocument::VIDEO_TIMESTAMP_MASK;
-    }
-    if (input_cover != nullptr) {
-      flags |= telegram_api::inputMediaUploadedDocument::VIDEO_COVER_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-        flags, true, false, has_spoiler, std::move(input_file), std::move(input_thumbnail), mime_type,
-        std::move(attributes), std::move(added_stickers), std::move(input_cover), start_timestamp, ttl);
-  } else {
-    CHECK(main_remote_location == nullptr);
-  }
-
-  return nullptr;
-}
-
-telegram_api::object_ptr<telegram_api::InputMedia> VideosManager::get_story_document_input_media(
-    FileId file_id, double main_frame_timestamp) const {
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return nullptr;
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location == nullptr || main_remote_location->is_web()) {
-    return nullptr;
-  }
-
-  const Video *video = get_video(file_id);
-  CHECK(video != nullptr);
-
-  vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-  {
-    int32 attribute_flags = 0;
-    if (main_frame_timestamp > 0.0) {
-      attribute_flags |= telegram_api::documentAttributeVideo::VIDEO_START_TS_MASK;
-    }
-    attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeVideo>(
-        attribute_flags, false, video->supports_streaming, video->is_animation, video->precise_duration,
-        video->dimensions.width, video->dimensions.height, 0, main_frame_timestamp, string()));
-  }
-  if (!video->file_name.empty()) {
-    attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeFilename>(video->file_name));
-  }
-  int32 flags = 0;
-  vector<telegram_api::object_ptr<telegram_api::InputDocument>> added_stickers;
-  if (video->has_stickers) {
-    flags |= telegram_api::inputMediaUploadedDocument::STICKERS_MASK;
-    added_stickers = td_->file_manager_->get_input_documents(video->sticker_file_ids);
-  }
-  string mime_type = video->mime_type;
-  if (!begins_with(mime_type, "video/")) {
-    mime_type = "video/mp4";
-  }
-  return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-      flags, true, false, false,
-      telegram_api::make_object<telegram_api::inputFileStoryDocument>(main_remote_location->as_input_document()),
-      nullptr, mime_type, std::move(attributes), std::move(added_stickers), nullptr, 0, 0);
-}
-
-string VideosManager::get_video_search_text(FileId file_id) const {
-  auto *video = get_video(file_id);
-  CHECK(video != nullptr);
-  return video->file_name;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VideosManager.h b/third-party/td/td/td/telegram/VideosManager.h
deleted file mode 100644
index 4b0e1cc2cb..0000000000
--- a/third-party/td/td/td/telegram/VideosManager.h
+++ /dev/null
@@ -1,110 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/PhotoSize.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-namespace td {
-
-class Td;
-
-class VideosManager {
- public:
-  explicit VideosManager(Td *td);
-  VideosManager(const VideosManager &) = delete;
-  VideosManager &operator=(const VideosManager &) = delete;
-  VideosManager(VideosManager &&) = delete;
-  VideosManager &operator=(VideosManager &&) = delete;
-  ~VideosManager();
-
-  int32 get_video_duration(FileId file_id) const;
-
-  td_api::object_ptr<td_api::video> get_video_object(FileId file_id) const;
-
-  td_api::object_ptr<td_api::storyVideo> get_story_video_object(FileId file_id) const;
-
-  td_api::object_ptr<td_api::alternativeVideo> get_alternative_video_object(FileId file_id,
-                                                                            const vector<FileId> &hls_file_ids) const;
-
-  void create_video(FileId file_id, string minithumbnail, PhotoSize thumbnail, AnimationSize animated_thumbnail,
-                    bool has_stickers, vector<FileId> &&sticker_file_ids, string file_name, string mime_type,
-                    int32 duration, double precise_duration, Dimensions dimensions, bool supports_streaming,
-                    bool is_animation, int32 preload_prefix_size, double start_ts, string &&codec, bool replace);
-
-  tl_object_ptr<telegram_api::InputMedia> get_input_media(
-      FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file,
-      telegram_api::object_ptr<telegram_api::InputFile> input_thumbnail, const Photo &cover, int32 start_timestamp,
-      int32 ttl, bool has_spoiler) const;
-
-  telegram_api::object_ptr<telegram_api::InputMedia> get_story_document_input_media(FileId file_id,
-                                                                                    double main_frame_timestamp) const;
-
-  SecretInputMedia get_secret_input_media(FileId video_file_id,
-                                          telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                          const string &caption, BufferSlice thumbnail, int32 layer) const;
-
-  FileId get_video_thumbnail_file_id(FileId file_id) const;
-
-  FileId get_video_animated_thumbnail_file_id(FileId file_id) const;
-
-  void delete_video_thumbnail(FileId file_id);
-
-  FileId dup_video(FileId new_id, FileId old_id);
-
-  void merge_videos(FileId new_id, FileId old_id);
-
-  template <class StorerT>
-  void store_video(FileId file_id, StorerT &storer) const;
-
-  template <class ParserT>
-  FileId parse_video(ParserT &parser);
-
-  string get_video_search_text(FileId file_id) const;
-
- private:
-  class Video {
-   public:
-    string file_name;
-    string mime_type;
-    int32 duration = 0;
-    double precise_duration = 0;
-    Dimensions dimensions;
-    string minithumbnail;
-    PhotoSize thumbnail;
-    AnimationSize animated_thumbnail;
-    int32 preload_prefix_size = 0;
-    double start_ts = 0.0;
-    string codec;
-
-    bool supports_streaming = false;
-    bool is_animation = false;
-
-    bool has_stickers = false;
-    vector<FileId> sticker_file_ids;
-
-    FileId file_id;
-  };
-
-  const Video *get_video(FileId file_id) const;
-
-  FileId on_get_video(unique_ptr<Video> new_video, bool replace);
-
-  Td *td_;
-  WaitFreeHashMap<FileId, unique_ptr<Video>, FileIdHash> videos_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VideosManager.hpp b/third-party/td/td/td/telegram/VideosManager.hpp
deleted file mode 100644
index d767c1f717..0000000000
--- a/third-party/td/td/td/telegram/VideosManager.hpp
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/VideosManager.h"
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void VideosManager::store_video(FileId file_id, StorerT &storer) const {
-  const Video *video = get_video(file_id);
-  CHECK(video != nullptr);
-  bool has_animated_thumbnail = video->animated_thumbnail.file_id.is_valid();
-  bool has_preload_prefix_size = video->preload_prefix_size != 0;
-  bool has_precise_duration = video->precise_duration != 0 && video->precise_duration != video->duration;
-  bool has_start_ts = video->start_ts != 0.0;
-  bool has_codec = !video->codec.empty();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(video->has_stickers);
-  STORE_FLAG(video->supports_streaming);
-  STORE_FLAG(has_animated_thumbnail);
-  STORE_FLAG(has_preload_prefix_size);
-  STORE_FLAG(has_precise_duration);
-  STORE_FLAG(video->is_animation);
-  STORE_FLAG(has_start_ts);
-  STORE_FLAG(has_codec);
-  END_STORE_FLAGS();
-  store(video->file_name, storer);
-  store(video->mime_type, storer);
-  store(video->duration, storer);
-  store(video->dimensions, storer);
-  store(video->minithumbnail, storer);
-  store(video->thumbnail, storer);
-  store(file_id, storer);
-  if (video->has_stickers) {
-    store(video->sticker_file_ids, storer);
-  }
-  if (has_animated_thumbnail) {
-    store(video->animated_thumbnail, storer);
-  }
-  if (has_preload_prefix_size) {
-    store(video->preload_prefix_size, storer);
-  }
-  if (has_precise_duration) {
-    store(video->precise_duration, storer);
-  }
-  if (has_start_ts) {
-    store(video->start_ts, storer);
-  }
-  if (has_codec) {
-    store(video->codec, storer);
-  }
-}
-
-template <class ParserT>
-FileId VideosManager::parse_video(ParserT &parser) {
-  auto video = make_unique<Video>();
-  bool has_animated_thumbnail;
-  bool has_preload_prefix_size;
-  bool has_precise_duration;
-  bool has_start_ts;
-  bool has_codec;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(video->has_stickers);
-  PARSE_FLAG(video->supports_streaming);
-  PARSE_FLAG(has_animated_thumbnail);
-  PARSE_FLAG(has_preload_prefix_size);
-  PARSE_FLAG(has_precise_duration);
-  PARSE_FLAG(video->is_animation);
-  PARSE_FLAG(has_start_ts);
-  PARSE_FLAG(has_codec);
-  END_PARSE_FLAGS();
-  parse(video->file_name, parser);
-  parse(video->mime_type, parser);
-  parse(video->duration, parser);
-  parse(video->dimensions, parser);
-  if (parser.version() >= static_cast<int32>(Version::SupportMinithumbnails)) {
-    parse(video->minithumbnail, parser);
-  }
-  parse(video->thumbnail, parser);
-  parse(video->file_id, parser);
-  if (video->has_stickers) {
-    parse(video->sticker_file_ids, parser);
-  }
-  if (has_animated_thumbnail) {
-    parse(video->animated_thumbnail, parser);
-  }
-  if (has_preload_prefix_size) {
-    parse(video->preload_prefix_size, parser);
-  }
-  if (has_precise_duration) {
-    parse(video->precise_duration, parser);
-  } else {
-    video->precise_duration = video->duration;
-  }
-  if (has_start_ts) {
-    parse(video->start_ts, parser);
-  }
-  if (has_codec) {
-    parse(video->codec, parser);
-  }
-  if (parser.get_error() != nullptr || !video->file_id.is_valid()) {
-    return FileId();
-  }
-  return on_get_video(std::move(video), false);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VoiceNotesManager.cpp b/third-party/td/td/td/telegram/VoiceNotesManager.cpp
deleted file mode 100644
index 6a6a4d5310..0000000000
--- a/third-party/td/td/td/telegram/VoiceNotesManager.cpp
+++ /dev/null
@@ -1,223 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/VoiceNotesManager.h"
-
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TranscriptionManager.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-VoiceNotesManager::VoiceNotesManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-VoiceNotesManager::~VoiceNotesManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), voice_notes_);
-}
-
-void VoiceNotesManager::tear_down() {
-  parent_.reset();
-}
-
-int32 VoiceNotesManager::get_voice_note_duration(FileId file_id) const {
-  auto voice_note = get_voice_note(file_id);
-  if (voice_note == nullptr) {
-    return 0;
-  }
-  return voice_note->duration;
-}
-
-TranscriptionInfo *VoiceNotesManager::get_voice_note_transcription_info(FileId file_id, bool allow_creation) {
-  auto voice_note = get_voice_note(file_id);
-  CHECK(voice_note != nullptr);
-  if (voice_note->transcription_info == nullptr && allow_creation) {
-    voice_note->transcription_info = make_unique<TranscriptionInfo>();
-  }
-  return voice_note->transcription_info.get();
-}
-
-tl_object_ptr<td_api::voiceNote> VoiceNotesManager::get_voice_note_object(FileId file_id) const {
-  if (!file_id.is_valid()) {
-    return nullptr;
-  }
-
-  auto voice_note = get_voice_note(file_id);
-  CHECK(voice_note != nullptr);
-  auto speech_recognition_result = voice_note->transcription_info == nullptr
-                                       ? nullptr
-                                       : voice_note->transcription_info->get_speech_recognition_result_object();
-  return make_tl_object<td_api::voiceNote>(voice_note->duration, voice_note->waveform, voice_note->mime_type,
-                                           std::move(speech_recognition_result),
-                                           td_->file_manager_->get_file_object(file_id));
-}
-
-FileId VoiceNotesManager::on_get_voice_note(unique_ptr<VoiceNote> new_voice_note, bool replace) {
-  auto file_id = new_voice_note->file_id;
-  CHECK(file_id.is_valid());
-  LOG(INFO) << "Receive voice note " << file_id;
-  auto &v = voice_notes_[file_id];
-  if (v == nullptr) {
-    v = std::move(new_voice_note);
-  } else if (replace) {
-    CHECK(v->file_id == new_voice_note->file_id);
-    if (v->mime_type != new_voice_note->mime_type || v->duration != new_voice_note->duration ||
-        v->waveform != new_voice_note->waveform) {
-      LOG(DEBUG) << "Voice note " << file_id << " info has changed";
-      v->mime_type = std::move(new_voice_note->mime_type);
-      v->duration = new_voice_note->duration;
-      v->waveform = std::move(new_voice_note->waveform);
-    }
-    if (TranscriptionInfo::update_from(v->transcription_info, std::move(new_voice_note->transcription_info))) {
-      td_->transcription_manager_->on_transcription_completed(file_id);
-    }
-  }
-
-  return file_id;
-}
-
-VoiceNotesManager::VoiceNote *VoiceNotesManager::get_voice_note(FileId file_id) {
-  return voice_notes_.get_pointer(file_id);
-}
-
-const VoiceNotesManager::VoiceNote *VoiceNotesManager::get_voice_note(FileId file_id) const {
-  return voice_notes_.get_pointer(file_id);
-}
-
-FileId VoiceNotesManager::dup_voice_note(FileId new_id, FileId old_id) {
-  const VoiceNote *old_voice_note = get_voice_note(old_id);
-  CHECK(old_voice_note != nullptr);
-  auto &new_voice_note = voice_notes_[new_id];
-  if (new_voice_note != nullptr) {
-    return new_id;
-  }
-  new_voice_note = make_unique<VoiceNote>();
-  new_voice_note->file_id = new_id;
-  new_voice_note->mime_type = old_voice_note->mime_type;
-  new_voice_note->duration = old_voice_note->duration;
-  new_voice_note->waveform = old_voice_note->waveform;
-  new_voice_note->transcription_info = TranscriptionInfo::copy_if_transcribed(old_voice_note->transcription_info);
-  return new_id;
-}
-
-void VoiceNotesManager::merge_voice_notes(FileId new_id, FileId old_id) {
-  CHECK(old_id.is_valid() && new_id.is_valid());
-  CHECK(new_id != old_id);
-
-  LOG(INFO) << "Merge voice notes " << new_id << " and " << old_id;
-  const VoiceNote *old_ = get_voice_note(old_id);
-  CHECK(old_ != nullptr);
-
-  const auto *new_ = get_voice_note(new_id);
-  if (new_ == nullptr) {
-    dup_voice_note(new_id, old_id);
-  } else if (!old_->mime_type.empty() && old_->mime_type != new_->mime_type) {
-    LOG(INFO) << "Voice note has changed: mime_type = (" << old_->mime_type << ", " << new_->mime_type << ")";
-  }
-  LOG_STATUS(td_->file_manager_->merge(new_id, old_id));
-}
-
-void VoiceNotesManager::create_voice_note(FileId file_id, string mime_type, int32 duration, string waveform,
-                                          bool replace) {
-  auto v = make_unique<VoiceNote>();
-  v->file_id = file_id;
-  v->mime_type = std::move(mime_type);
-  v->duration = max(duration, 0);
-  v->waveform = std::move(waveform);
-  on_get_voice_note(std::move(v), replace);
-}
-
-SecretInputMedia VoiceNotesManager::get_secret_input_media(
-    FileId voice_note_file_id, telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-    const string &caption, int32 layer) const {
-  auto file_view = td_->file_manager_->get_file_view(voice_note_file_id);
-  if (!file_view.is_encrypted_secret() || file_view.encryption_key().empty()) {
-    return SecretInputMedia{};
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr) {
-    input_file = main_remote_location->as_input_encrypted_file();
-  }
-  if (!input_file) {
-    return SecretInputMedia{};
-  }
-
-  auto *voice_note = get_voice_note(voice_note_file_id);
-  CHECK(voice_note != nullptr);
-  vector<secret_api::object_ptr<secret_api::DocumentAttribute>> attributes;
-  attributes.push_back(secret_api::make_object<secret_api::documentAttributeAudio>(
-      secret_api::documentAttributeAudio::WAVEFORM_MASK, true, voice_note->duration, "", "",
-      BufferSlice(voice_note->waveform)));
-
-  return {std::move(input_file), BufferSlice(), Dimensions(), voice_note->mime_type, file_view,
-          std::move(attributes), caption,       layer};
-}
-
-tl_object_ptr<telegram_api::InputMedia> VoiceNotesManager::get_input_media(
-    FileId file_id, telegram_api::object_ptr<telegram_api::InputFile> input_file, int32 ttl) const {
-  auto file_view = td_->file_manager_->get_file_view(file_id);
-  if (file_view.is_encrypted()) {
-    return nullptr;
-  }
-  const auto *main_remote_location = file_view.get_main_remote_location();
-  if (main_remote_location != nullptr && !main_remote_location->is_web() && input_file == nullptr) {
-    int32 flags = 0;
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaDocument::TTL_SECONDS_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaDocument>(
-        flags, false, main_remote_location->as_input_document(), nullptr, 0, ttl, string());
-  }
-  const auto *url = file_view.get_url();
-  if (url != nullptr) {
-    int32 flags = 0;
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaDocumentExternal::TTL_SECONDS_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaDocumentExternal>(flags, false, *url, ttl, nullptr, 0);
-  }
-
-  if (input_file != nullptr) {
-    const VoiceNote *voice_note = get_voice_note(file_id);
-    CHECK(voice_note != nullptr);
-
-    vector<telegram_api::object_ptr<telegram_api::DocumentAttribute>> attributes;
-    {
-      int32 flags = 0;
-      if (!voice_note->waveform.empty()) {
-        flags |= telegram_api::documentAttributeAudio::WAVEFORM_MASK;
-      }
-      attributes.push_back(telegram_api::make_object<telegram_api::documentAttributeAudio>(
-          flags, true, voice_note->duration, "", "", BufferSlice(voice_note->waveform)));
-    }
-    string mime_type = voice_note->mime_type;
-    if (mime_type != "audio/ogg" && mime_type != "audio/mpeg" && mime_type != "audio/mp4") {
-      mime_type = "audio/ogg";
-    }
-    int32 flags = 0;
-    if (ttl != 0) {
-      flags |= telegram_api::inputMediaUploadedDocument::TTL_SECONDS_MASK;
-    }
-    return telegram_api::make_object<telegram_api::inputMediaUploadedDocument>(
-        flags, false, false, false, std::move(input_file), nullptr, mime_type, std::move(attributes),
-        vector<telegram_api::object_ptr<telegram_api::InputDocument>>(), nullptr, 0, ttl);
-  } else {
-    CHECK(main_remote_location == nullptr);
-  }
-
-  return nullptr;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VoiceNotesManager.h b/third-party/td/td/td/telegram/VoiceNotesManager.h
deleted file mode 100644
index be36d2dfae..0000000000
--- a/third-party/td/td/td/telegram/VoiceNotesManager.h
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/SecretInputMedia.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TranscriptionInfo.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-namespace td {
-
-class Td;
-
-class VoiceNotesManager final : public Actor {
- public:
-  VoiceNotesManager(Td *td, ActorShared<> parent);
-  VoiceNotesManager(const VoiceNotesManager &) = delete;
-  VoiceNotesManager &operator=(const VoiceNotesManager &) = delete;
-  VoiceNotesManager(VoiceNotesManager &&) = delete;
-  VoiceNotesManager &operator=(VoiceNotesManager &&) = delete;
-  ~VoiceNotesManager() final;
-
-  int32 get_voice_note_duration(FileId file_id) const;
-
-  TranscriptionInfo *get_voice_note_transcription_info(FileId file_id, bool allow_creation);
-
-  tl_object_ptr<td_api::voiceNote> get_voice_note_object(FileId file_id) const;
-
-  void create_voice_note(FileId file_id, string mime_type, int32 duration, string waveform, bool replace);
-
-  tl_object_ptr<telegram_api::InputMedia> get_input_media(FileId file_id,
-                                                          telegram_api::object_ptr<telegram_api::InputFile> input_file,
-                                                          int32 ttl) const;
-
-  SecretInputMedia get_secret_input_media(FileId voice_note_file_id,
-                                          telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file,
-                                          const string &caption, int32 layer) const;
-
-  FileId dup_voice_note(FileId new_id, FileId old_id);
-
-  void merge_voice_notes(FileId new_id, FileId old_id);
-
-  template <class StorerT>
-  void store_voice_note(FileId file_id, StorerT &storer) const;
-
-  template <class ParserT>
-  FileId parse_voice_note(ParserT &parser);
-
- private:
-  class VoiceNote {
-   public:
-    string mime_type;
-    int32 duration = 0;
-    string waveform;
-    unique_ptr<TranscriptionInfo> transcription_info;
-
-    FileId file_id;
-  };
-
-  VoiceNote *get_voice_note(FileId file_id);
-
-  const VoiceNote *get_voice_note(FileId file_id) const;
-
-  FileId on_get_voice_note(unique_ptr<VoiceNote> new_voice_note, bool replace);
-
-  void tear_down() final;
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  WaitFreeHashMap<FileId, unique_ptr<VoiceNote>, FileIdHash> voice_notes_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/VoiceNotesManager.hpp b/third-party/td/td/td/telegram/VoiceNotesManager.hpp
deleted file mode 100644
index 07dd45b870..0000000000
--- a/third-party/td/td/td/telegram/VoiceNotesManager.hpp
+++ /dev/null
@@ -1,88 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/VoiceNotesManager.h"
-
-#include "td/telegram/files/FileId.hpp"
-#include "td/telegram/TranscriptionInfo.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void VoiceNotesManager::store_voice_note(FileId file_id, StorerT &storer) const {
-  const VoiceNote *voice_note = get_voice_note(file_id);
-  CHECK(voice_note != nullptr);
-  bool has_mime_type = !voice_note->mime_type.empty();
-  bool has_duration = voice_note->duration != 0;
-  bool has_waveform = !voice_note->waveform.empty();
-  bool is_transcribed = voice_note->transcription_info != nullptr && voice_note->transcription_info->is_transcribed();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_mime_type);
-  STORE_FLAG(has_duration);
-  STORE_FLAG(has_waveform);
-  STORE_FLAG(is_transcribed);
-  END_STORE_FLAGS();
-  if (has_mime_type) {
-    store(voice_note->mime_type, storer);
-  }
-  if (has_duration) {
-    store(voice_note->duration, storer);
-  }
-  if (has_waveform) {
-    store(voice_note->waveform, storer);
-  }
-  if (is_transcribed) {
-    store(voice_note->transcription_info, storer);
-  }
-  store(file_id, storer);
-}
-
-template <class ParserT>
-FileId VoiceNotesManager::parse_voice_note(ParserT &parser) {
-  auto voice_note = make_unique<VoiceNote>();
-  bool has_mime_type;
-  bool has_duration;
-  bool has_waveform;
-  bool is_transcribed;
-  if (parser.version() >= static_cast<int32>(Version::AddVoiceNoteFlags)) {
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_mime_type);
-    PARSE_FLAG(has_duration);
-    PARSE_FLAG(has_waveform);
-    PARSE_FLAG(is_transcribed);
-    END_PARSE_FLAGS();
-  } else {
-    has_mime_type = true;
-    has_duration = true;
-    has_waveform = true;
-    is_transcribed = false;
-  }
-  if (has_mime_type) {
-    parse(voice_note->mime_type, parser);
-  }
-  if (has_duration) {
-    parse(voice_note->duration, parser);
-  }
-  if (has_waveform) {
-    parse(voice_note->waveform, parser);
-  }
-  if (is_transcribed) {
-    parse(voice_note->transcription_info, parser);
-  }
-  parse(voice_note->file_id, parser);
-  if (parser.get_error() != nullptr || !voice_note->file_id.is_valid()) {
-    return FileId();
-  }
-  return on_get_voice_note(std::move(voice_note), false);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebApp.cpp b/third-party/td/td/td/telegram/WebApp.cpp
deleted file mode 100644
index 4b5dcd1459..0000000000
--- a/third-party/td/td/td/telegram/WebApp.cpp
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/WebApp.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-WebApp::WebApp(Td *td, telegram_api::object_ptr<telegram_api::botApp> &&web_app, DialogId owner_dialog_id)
-    : id_(web_app->id_)
-    , access_hash_(web_app->access_hash_)
-    , short_name_(std::move(web_app->short_name_))
-    , title_(std::move(web_app->title_))
-    , description_(std::move(web_app->description_))
-    , hash_(web_app->hash_) {
-  CHECK(td != nullptr);
-  photo_ = get_photo(td, std::move(web_app->photo_), owner_dialog_id);
-  if (photo_.is_empty()) {
-    LOG(ERROR) << "Receive empty photo for Web App " << short_name_ << '/' << title_;
-    photo_.id = 0;  // to prevent null photo in td_api
-  }
-  if (web_app->document_ != nullptr) {
-    int32 document_id = web_app->document_->get_id();
-    if (document_id == telegram_api::document::ID) {
-      auto parsed_document = td->documents_manager_->on_get_document(
-          move_tl_object_as<telegram_api::document>(web_app->document_), owner_dialog_id, false);
-      if (parsed_document.type == Document::Type::Animation) {
-        animation_file_id_ = parsed_document.file_id;
-      } else {
-        LOG(ERROR) << "Receive non-animation document for Web App " << short_name_ << '/' << title_;
-      }
-    }
-  }
-}
-
-bool WebApp::is_empty() const {
-  return short_name_.empty();
-}
-
-vector<FileId> WebApp::get_file_ids(const Td *td) const {
-  auto result = photo_get_file_ids(photo_);
-  Document(Document::Type::Animation, animation_file_id_).append_file_ids(td, result);
-  return result;
-}
-
-td_api::object_ptr<td_api::webApp> WebApp::get_web_app_object(Td *td) const {
-  return td_api::make_object<td_api::webApp>(short_name_, title_, description_,
-                                             get_photo_object(td->file_manager_.get(), photo_),
-                                             td->animations_manager_->get_animation_object(animation_file_id_));
-}
-
-bool operator==(const WebApp &lhs, const WebApp &rhs) {
-  return lhs.id_ == rhs.id_ && lhs.access_hash_ == rhs.access_hash_ && lhs.short_name_ == rhs.short_name_ &&
-         lhs.title_ == rhs.title_ && lhs.description_ == rhs.description_ && lhs.photo_ == rhs.photo_ &&
-         lhs.animation_file_id_ == rhs.animation_file_id_ && lhs.hash_ == rhs.hash_;
-}
-
-bool operator!=(const WebApp &lhs, const WebApp &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const WebApp &web_app) {
-  return string_builder << "WebApp[ID = " << web_app.id_ << ", access_hash = " << web_app.access_hash_
-                        << ", short_name = " << web_app.short_name_ << ", title = " << web_app.title_
-                        << ", description = " << web_app.description_ << ", photo = " << web_app.photo_
-                        << ", animation_file_id = " << web_app.animation_file_id_ << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebApp.h b/third-party/td/td/td/telegram/WebApp.h
deleted file mode 100644
index 32fb5cf2c6..0000000000
--- a/third-party/td/td/td/telegram/WebApp.h
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Td;
-
-class WebApp {
-  int64 id_ = 0;
-  int64 access_hash_ = 0;
-  string short_name_;
-  string title_;
-  string description_;
-  Photo photo_;
-  FileId animation_file_id_;
-  int64 hash_ = 0;
-
-  friend bool operator==(const WebApp &lhs, const WebApp &rhs);
-  friend bool operator!=(const WebApp &lhs, const WebApp &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const WebApp &web_app);
-
- public:
-  WebApp() = default;
-
-  WebApp(Td *td, telegram_api::object_ptr<telegram_api::botApp> &&web_app, DialogId owner_dialog_id);
-
-  bool is_empty() const;
-
-  vector<FileId> get_file_ids(const Td *td) const;
-
-  td_api::object_ptr<td_api::webApp> get_web_app_object(Td *td) const;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-bool operator==(const WebApp &lhs, const WebApp &rhs);
-bool operator!=(const WebApp &lhs, const WebApp &rhs);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const WebApp &web_app);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebApp.hpp b/third-party/td/td/td/telegram/WebApp.hpp
deleted file mode 100644
index 5046b33e61..0000000000
--- a/third-party/td/td/td/telegram/WebApp.hpp
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/WebApp.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AnimationsManager.hpp"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/Td.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void WebApp::store(StorerT &storer) const {
-  using td::store;
-  bool has_animation = animation_file_id_.is_valid();
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_animation);
-  END_STORE_FLAGS();
-  store(id_, storer);
-  store(access_hash_, storer);
-  store(short_name_, storer);
-  store(title_, storer);
-  store(description_, storer);
-  store(photo_, storer);
-  if (has_animation) {
-    storer.context()->td().get_actor_unsafe()->animations_manager_->store_animation(animation_file_id_, storer);
-  }
-  store(hash_, storer);
-}
-
-template <class ParserT>
-void WebApp::parse(ParserT &parser) {
-  using td::parse;
-  bool has_animation;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_animation);
-  END_PARSE_FLAGS();
-  parse(id_, parser);
-  parse(access_hash_, parser);
-  parse(short_name_, parser);
-  parse(title_, parser);
-  parse(description_, parser);
-  parse(photo_, parser);
-  if (has_animation) {
-    animation_file_id_ = parser.context()->td().get_actor_unsafe()->animations_manager_->parse_animation(parser);
-  }
-  parse(hash_, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebAppManager.cpp b/third-party/td/td/td/telegram/WebAppManager.cpp
deleted file mode 100644
index 0ab73c3e51..0000000000
--- a/third-party/td/td/td/telegram/WebAppManager.cpp
+++ /dev/null
@@ -1,670 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/WebAppManager.h"
-
-#include "td/telegram/AccessRights.h"
-#include "td/telegram/AttachMenuManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/TopDialogCategory.h"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/WebApp.h"
-#include "td/telegram/WebAppOpenParameters.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-class GetPopularAppBotsQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::foundUsers>> promise_;
-
- public:
-  explicit GetPopularAppBotsQuery(Promise<td_api::object_ptr<td_api::foundUsers>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &offset, int32 limit) {
-    send_query(G()->net_query_creator().create(telegram_api::bots_getPopularAppBots(offset, limit)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_getPopularAppBots>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetPopularAppBotsQuery: " << to_string(ptr);
-
-    vector<int64> user_ids;
-    for (auto &user : ptr->users_) {
-      auto user_id = td_->user_manager_->get_user_id(user);
-      td_->user_manager_->on_get_user(std::move(user), "GetPopularAppBotsQuery");
-      if (td_->user_manager_->is_user_bot(user_id)) {
-        user_ids.push_back(td_->user_manager_->get_user_id_object(user_id, "GetPopularAppBotsQuery"));
-      }
-    }
-    promise_.set_value(td_api::make_object<td_api::foundUsers>(std::move(user_ids), ptr->next_offset_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetBotAppQuery final : public Td::ResultHandler {
-  Promise<telegram_api::object_ptr<telegram_api::messages_botApp>> promise_;
-
- public:
-  explicit GetBotAppQuery(Promise<telegram_api::object_ptr<telegram_api::messages_botApp>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> &&input_user, const string &short_name) {
-    auto input_bot_app =
-        telegram_api::make_object<telegram_api::inputBotAppShortName>(std::move(input_user), short_name);
-    send_query(G()->net_query_creator().create(telegram_api::messages_getBotApp(std::move(input_bot_app), 0)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getBotApp>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetBotAppQuery: " << to_string(ptr);
-    promise_.set_value(std::move(ptr));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RequestAppWebViewQuery final : public Td::ResultHandler {
-  Promise<string> promise_;
-
- public:
-  explicit RequestAppWebViewQuery(Promise<string> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-            const string &web_app_short_name, const string &start_parameter, const WebAppOpenParameters &parameters,
-            bool allow_write_access) {
-    int32 flags = 0;
-    auto theme_parameters = parameters.get_input_theme_parameters();
-    if (theme_parameters != nullptr) {
-      flags |= telegram_api::messages_requestAppWebView::THEME_PARAMS_MASK;
-    }
-    if (allow_write_access) {
-      flags |= telegram_api::messages_requestAppWebView::WRITE_ALLOWED_MASK;
-    }
-    if (!start_parameter.empty()) {
-      flags |= telegram_api::messages_requestAppWebView::START_PARAM_MASK;
-    }
-    if (parameters.is_compact()) {
-      flags |= telegram_api::messages_requestAppWebView::COMPACT_MASK;
-    }
-    if (parameters.is_full_screen()) {
-      flags |= telegram_api::messages_requestAppWebView::FULLSCREEN_MASK;
-    }
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    auto input_bot_app =
-        telegram_api::make_object<telegram_api::inputBotAppShortName>(std::move(input_user), web_app_short_name);
-    send_query(G()->net_query_creator().create(telegram_api::messages_requestAppWebView(
-        flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, std::move(input_peer), std::move(input_bot_app),
-        start_parameter, std::move(theme_parameters), parameters.get_application_name())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_requestAppWebView>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for RequestAppWebViewQuery: " << to_string(ptr);
-    LOG_IF(ERROR, ptr->query_id_ != 0) << "Receive " << to_string(ptr);
-    promise_.set_value(std::move(ptr->url_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RequestMainWebViewQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::mainWebApp>> promise_;
-  bool is_full_screen_ = false;
-
- public:
-  explicit RequestMainWebViewQuery(Promise<td_api::object_ptr<td_api::mainWebApp>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, telegram_api::object_ptr<telegram_api::InputUser> &&input_user,
-            const string &start_parameter, const WebAppOpenParameters &parameters) {
-    int32 flags = 0;
-    auto theme_parameters = parameters.get_input_theme_parameters();
-    if (theme_parameters != nullptr) {
-      flags |= telegram_api::messages_requestMainWebView::THEME_PARAMS_MASK;
-    }
-    if (!start_parameter.empty()) {
-      flags |= telegram_api::messages_requestMainWebView::START_PARAM_MASK;
-    }
-    if (parameters.is_compact()) {
-      flags |= telegram_api::messages_requestMainWebView::COMPACT_MASK;
-    }
-    if (parameters.is_full_screen()) {
-      is_full_screen_ = true;
-      flags |= telegram_api::messages_requestMainWebView::FULLSCREEN_MASK;
-    }
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Read);
-    CHECK(input_peer != nullptr);
-    send_query(G()->net_query_creator().create(telegram_api::messages_requestMainWebView(
-        flags, false /*ignored*/, false /*ignored*/, std::move(input_peer), std::move(input_user), start_parameter,
-        std::move(theme_parameters), parameters.get_application_name())));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_requestMainWebView>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for RequestMainWebViewQuery: " << to_string(ptr);
-    LOG_IF(ERROR, ptr->query_id_ != 0) << "Receive " << to_string(ptr);
-    td_api::object_ptr<td_api::WebAppOpenMode> mode;
-    if (is_full_screen_) {
-      mode = td_api::make_object<td_api::webAppOpenModeFullScreen>();
-    } else if (ptr->fullsize_) {
-      mode = td_api::make_object<td_api::webAppOpenModeFullSize>();
-    } else {
-      mode = td_api::make_object<td_api::webAppOpenModeCompact>();
-    }
-    promise_.set_value(td_api::make_object<td_api::mainWebApp>(ptr->url_, std::move(mode)));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class RequestWebViewQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::webAppInfo>> promise_;
-  DialogId dialog_id_;
-  UserId bot_user_id_;
-  MessageId top_thread_message_id_;
-  MessageInputReplyTo input_reply_to_;
-  DialogId as_dialog_id_;
-  bool from_attach_menu_ = false;
-
- public:
-  explicit RequestWebViewQuery(Promise<td_api::object_ptr<td_api::webAppInfo>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(DialogId dialog_id, UserId bot_user_id, tl_object_ptr<telegram_api::InputUser> &&input_user, string &&url,
-            const WebAppOpenParameters &parameters, MessageId top_thread_message_id, MessageInputReplyTo input_reply_to,
-            bool silent, DialogId as_dialog_id) {
-    dialog_id_ = dialog_id;
-    bot_user_id_ = bot_user_id;
-    top_thread_message_id_ = top_thread_message_id;
-    input_reply_to_ = std::move(input_reply_to);
-    as_dialog_id_ = as_dialog_id;
-
-    int32 flags = 0;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    CHECK(input_peer != nullptr);
-
-    string start_parameter;
-    if (begins_with(url, "start://")) {
-      start_parameter = url.substr(8);
-      url = string();
-
-      flags |= telegram_api::messages_requestWebView::START_PARAM_MASK;
-    } else if (begins_with(url, "menu://")) {
-      url = url.substr(7);
-
-      flags |= telegram_api::messages_requestWebView::FROM_BOT_MENU_MASK;
-      flags |= telegram_api::messages_requestWebView::URL_MASK;
-    } else if (!url.empty()) {
-      flags |= telegram_api::messages_requestWebView::URL_MASK;
-    } else {
-      from_attach_menu_ = true;
-    }
-
-    auto theme_parameters = parameters.get_input_theme_parameters();
-    if (theme_parameters != nullptr) {
-      flags |= telegram_api::messages_requestWebView::THEME_PARAMS_MASK;
-    }
-
-    auto reply_to = input_reply_to_.get_input_reply_to(td_, top_thread_message_id);
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_requestWebView::REPLY_TO_MASK;
-    }
-
-    if (silent) {
-      flags |= telegram_api::messages_requestWebView::SILENT_MASK;
-    }
-
-    tl_object_ptr<telegram_api::InputPeer> as_input_peer;
-    if (as_dialog_id.is_valid()) {
-      as_input_peer = td_->dialog_manager_->get_input_peer(as_dialog_id, AccessRights::Write);
-      if (as_input_peer != nullptr) {
-        flags |= telegram_api::messages_requestWebView::SEND_AS_MASK;
-      }
-    }
-
-    if (parameters.is_compact()) {
-      flags |= telegram_api::messages_requestWebView::COMPACT_MASK;
-    }
-    if (parameters.is_full_screen()) {
-      flags |= telegram_api::messages_requestWebView::FULLSCREEN_MASK;
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_requestWebView(
-        flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/, std::move(input_peer),
-        std::move(input_user), url, start_parameter, std::move(theme_parameters), parameters.get_application_name(),
-        std::move(reply_to), std::move(as_input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_requestWebView>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG_IF(ERROR, (ptr->flags_ & telegram_api::webViewResultUrl::QUERY_ID_MASK) == 0) << "Receive " << to_string(ptr);
-    td_->web_app_manager_->open_web_view(ptr->query_id_, dialog_id_, bot_user_id_, top_thread_message_id_,
-                                         std::move(input_reply_to_), as_dialog_id_);
-    promise_.set_value(td_api::make_object<td_api::webAppInfo>(ptr->query_id_, ptr->url_));
-  }
-
-  void on_error(Status status) final {
-    if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "RequestWebViewQuery")) {
-      if (from_attach_menu_) {
-        td_->attach_menu_manager_->reload_attach_menu_bots(Promise<Unit>());
-      }
-    }
-    promise_.set_error(std::move(status));
-  }
-};
-
-class ProlongWebViewQuery final : public Td::ResultHandler {
-  DialogId dialog_id_;
-
- public:
-  void send(DialogId dialog_id, UserId bot_user_id, int64 query_id, MessageId top_thread_message_id,
-            const MessageInputReplyTo &input_reply_to, bool silent, DialogId as_dialog_id) {
-    dialog_id_ = dialog_id;
-
-    auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id, AccessRights::Write);
-    auto r_input_user = td_->user_manager_->get_input_user(bot_user_id);
-    if (input_peer == nullptr || r_input_user.is_error()) {
-      return;
-    }
-
-    int32 flags = 0;
-    auto reply_to = input_reply_to.get_input_reply_to(td_, top_thread_message_id);
-    if (reply_to != nullptr) {
-      flags |= telegram_api::messages_prolongWebView::REPLY_TO_MASK;
-    }
-    if (silent) {
-      flags |= telegram_api::messages_prolongWebView::SILENT_MASK;
-    }
-
-    tl_object_ptr<telegram_api::InputPeer> as_input_peer;
-    if (as_dialog_id.is_valid()) {
-      as_input_peer = td_->dialog_manager_->get_input_peer(as_dialog_id, AccessRights::Write);
-      if (as_input_peer != nullptr) {
-        flags |= telegram_api::messages_prolongWebView::SEND_AS_MASK;
-      }
-    }
-
-    send_query(G()->net_query_creator().create(telegram_api::messages_prolongWebView(
-        flags, false /*ignored*/, std::move(input_peer), r_input_user.move_as_ok(), query_id, std::move(reply_to),
-        std::move(as_input_peer))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_prolongWebView>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    bool ptr = result_ptr.ok();
-    if (!ptr) {
-      LOG(ERROR) << "Failed to prolong a web view";
-    }
-  }
-
-  void on_error(Status status) final {
-    td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "ProlongWebViewQuery");
-  }
-};
-
-class InvokeWebViewCustomMethodQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::customRequestResult>> promise_;
-
- public:
-  explicit InvokeWebViewCustomMethodQuery(Promise<td_api::object_ptr<td_api::customRequestResult>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(UserId bot_user_id, const string &method, const string &parameters) {
-    auto r_input_user = td_->user_manager_->get_input_user(bot_user_id);
-    if (r_input_user.is_error()) {
-      return on_error(r_input_user.move_as_error());
-    }
-    send_query(G()->net_query_creator().create(telegram_api::bots_invokeWebViewCustomMethod(
-        r_input_user.move_as_ok(), method, make_tl_object<telegram_api::dataJSON>(parameters))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_invokeWebViewCustomMethod>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto result = result_ptr.move_as_ok();
-    promise_.set_value(td_api::make_object<td_api::customRequestResult>(result->data_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class CheckDownloadFileParamsQuery final : public Td::ResultHandler {
-  Promise<Unit> promise_;
-
- public:
-  explicit CheckDownloadFileParamsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(telegram_api::object_ptr<telegram_api::InputUser> &&input_user, const string &file_name,
-            const string &url) {
-    send_query(G()->net_query_creator().create(
-        telegram_api::bots_checkDownloadFileParams(std::move(input_user), file_name, url)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::bots_checkDownloadFileParams>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    if (!result_ptr.ok()) {
-      return on_error(Status::Error(400, "The file can't be downloaded"));
-    }
-    promise_.set_value(Unit());
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-WebAppManager::WebAppManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-}
-
-void WebAppManager::start_up() {
-  class StateCallback final : public StateManager::Callback {
-   public:
-    explicit StateCallback(ActorId<WebAppManager> parent) : parent_(std::move(parent)) {
-    }
-    bool on_online(bool is_online) final {
-      if (is_online) {
-        send_closure(parent_, &WebAppManager::on_online, is_online);
-      }
-      return parent_.is_alive();
-    }
-
-   private:
-    ActorId<WebAppManager> parent_;
-  };
-  send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-}
-
-void WebAppManager::tear_down() {
-  parent_.reset();
-}
-
-void WebAppManager::on_online(bool is_online) {
-  if (is_online) {
-    ping_web_view();
-  } else {
-    ping_web_view_timeout_.cancel_timeout();
-  }
-}
-
-void WebAppManager::ping_web_view_static(void *td_void) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  CHECK(td_void != nullptr);
-  auto td = static_cast<Td *>(td_void);
-
-  td->web_app_manager_->ping_web_view();
-}
-
-void WebAppManager::ping_web_view() {
-  if (G()->close_flag() || opened_web_views_.empty()) {
-    return;
-  }
-
-  for (const auto &it : opened_web_views_) {
-    const auto &opened_web_view = it.second;
-    bool silent = td_->messages_manager_->get_dialog_silent_send_message(opened_web_view.dialog_id_);
-    td_->create_handler<ProlongWebViewQuery>()->send(
-        opened_web_view.dialog_id_, opened_web_view.bot_user_id_, it.first, opened_web_view.top_thread_message_id_,
-        opened_web_view.input_reply_to_, silent, opened_web_view.as_dialog_id_);
-  }
-
-  schedule_ping_web_view();
-}
-
-void WebAppManager::schedule_ping_web_view() {
-  ping_web_view_timeout_.set_callback(ping_web_view_static);
-  ping_web_view_timeout_.set_callback_data(static_cast<void *>(td_));
-  ping_web_view_timeout_.set_timeout_in(PING_WEB_VIEW_TIMEOUT);
-}
-
-void WebAppManager::get_popular_app_bots(const string &offset, int32 limit,
-                                         Promise<td_api::object_ptr<td_api::foundUsers>> &&promise) {
-  if (limit <= 0) {
-    return promise.set_error(Status::Error(400, "Limit must be positive"));
-  }
-  td_->create_handler<GetPopularAppBotsQuery>(std::move(promise))->send(offset, limit);
-}
-
-void WebAppManager::get_web_app(UserId bot_user_id, const string &web_app_short_name,
-                                Promise<td_api::object_ptr<td_api::foundWebApp>> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-  TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(bot_user_id));
-  auto query_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), bot_user_id, web_app_short_name, promise = std::move(promise)](
-                                 Result<telegram_api::object_ptr<telegram_api::messages_botApp>> result) mutable {
-        send_closure(actor_id, &WebAppManager::on_get_web_app, bot_user_id, std::move(web_app_short_name),
-                     std::move(result), std::move(promise));
-      });
-  td_->create_handler<GetBotAppQuery>(std::move(query_promise))->send(std::move(input_user), web_app_short_name);
-}
-
-void WebAppManager::on_get_web_app(UserId bot_user_id, string web_app_short_name,
-                                   Result<telegram_api::object_ptr<telegram_api::messages_botApp>> result,
-                                   Promise<td_api::object_ptr<td_api::foundWebApp>> promise) {
-  G()->ignore_result_if_closing(result);
-  if (result.is_error() && result.error().message() == "BOT_APP_INVALID") {
-    return promise.set_value(nullptr);
-  }
-  TRY_RESULT_PROMISE(promise, bot_app, std::move(result));
-  if (bot_app->app_->get_id() != telegram_api::botApp::ID) {
-    CHECK(bot_app->app_->get_id() != telegram_api::botAppNotModified::ID);
-    LOG(ERROR) << "Receive " << to_string(bot_app);
-    return promise.set_error(Status::Error(500, "Receive invalid response"));
-  }
-
-  WebApp web_app(td_, telegram_api::move_object_as<telegram_api::botApp>(bot_app->app_), DialogId(bot_user_id));
-  auto file_ids = web_app.get_file_ids(td_);
-  if (!file_ids.empty()) {
-    auto file_source_id = get_web_app_file_source_id(bot_user_id, web_app_short_name);
-    for (auto file_id : file_ids) {
-      td_->file_manager_->add_file_source(file_id, file_source_id, "on_get_web_app");
-    }
-  }
-  promise.set_value(td_api::make_object<td_api::foundWebApp>(web_app.get_web_app_object(td_),
-                                                             bot_app->request_write_access_, !bot_app->inactive_));
-}
-
-void WebAppManager::reload_web_app(UserId bot_user_id, const string &web_app_short_name, Promise<Unit> &&promise) {
-  get_web_app(bot_user_id, web_app_short_name,
-              PromiseCreator::lambda(
-                  [promise = std::move(promise)](Result<td_api::object_ptr<td_api::foundWebApp>> result) mutable {
-                    if (result.is_error()) {
-                      promise.set_error(result.move_as_error());
-                    } else {
-                      promise.set_value(Unit());
-                    }
-                  }));
-}
-
-void WebAppManager::request_app_web_view(DialogId dialog_id, UserId bot_user_id, string &&web_app_short_name,
-                                         string &&start_parameter, const WebAppOpenParameters &parameters,
-                                         bool allow_write_access, Promise<string> &&promise) {
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    dialog_id = DialogId(bot_user_id);
-  }
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-  TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(bot_user_id));
-  on_dialog_used(TopDialogCategory::BotApp, DialogId(bot_user_id), G()->unix_time());
-
-  td_->create_handler<RequestAppWebViewQuery>(std::move(promise))
-      ->send(dialog_id, std::move(input_user), web_app_short_name, start_parameter, parameters, allow_write_access);
-}
-
-void WebAppManager::request_main_web_view(DialogId dialog_id, UserId bot_user_id, string &&start_parameter,
-                                          const WebAppOpenParameters &parameters,
-                                          Promise<td_api::object_ptr<td_api::mainWebApp>> &&promise) {
-  if (!td_->dialog_manager_->have_input_peer(dialog_id, false, AccessRights::Read)) {
-    dialog_id = DialogId(bot_user_id);
-  }
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-  TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(bot_user_id));
-  if (!bot_data.has_main_app) {
-    return promise.set_error(Status::Error(400, "The bot has no main Mini App"));
-  }
-  on_dialog_used(TopDialogCategory::BotApp, DialogId(bot_user_id), G()->unix_time());
-
-  td_->create_handler<RequestMainWebViewQuery>(std::move(promise))
-      ->send(dialog_id, std::move(input_user), start_parameter, parameters);
-}
-
-void WebAppManager::request_web_view(DialogId dialog_id, UserId bot_user_id, MessageId top_thread_message_id,
-                                     td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, string &&url,
-                                     const WebAppOpenParameters &parameters,
-                                     Promise<td_api::object_ptr<td_api::webAppInfo>> &&promise) {
-  TRY_STATUS_PROMISE(promise, td_->user_manager_->get_bot_data(bot_user_id));
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-  TRY_RESULT_PROMISE(promise, bot_data, td_->user_manager_->get_bot_data(bot_user_id));
-  TRY_STATUS_PROMISE(
-      promise, td_->dialog_manager_->check_dialog_access(dialog_id, false, AccessRights::Write, "request_web_view"));
-  on_dialog_used(TopDialogCategory::BotApp, DialogId(bot_user_id), G()->unix_time());
-
-  if (!top_thread_message_id.is_valid() || !top_thread_message_id.is_server() ||
-      dialog_id.get_type() != DialogType::Channel ||
-      !td_->chat_manager_->is_megagroup_channel(dialog_id.get_channel_id())) {
-    top_thread_message_id = MessageId();
-  }
-  auto input_reply_to = td_->messages_manager_->create_message_input_reply_to(dialog_id, top_thread_message_id,
-                                                                              std::move(reply_to), false);
-
-  bool silent = td_->messages_manager_->get_dialog_silent_send_message(dialog_id);
-  DialogId as_dialog_id = td_->messages_manager_->get_dialog_default_send_message_as_dialog_id(dialog_id);
-
-  td_->create_handler<RequestWebViewQuery>(std::move(promise))
-      ->send(dialog_id, bot_user_id, std::move(input_user), std::move(url), parameters, top_thread_message_id,
-             std::move(input_reply_to), silent, as_dialog_id);
-}
-
-void WebAppManager::open_web_view(int64 query_id, DialogId dialog_id, UserId bot_user_id,
-                                  MessageId top_thread_message_id, MessageInputReplyTo &&input_reply_to,
-                                  DialogId as_dialog_id) {
-  if (query_id == 0) {
-    LOG(ERROR) << "Receive Web App query identifier == 0";
-    return;
-  }
-
-  if (opened_web_views_.empty()) {
-    schedule_ping_web_view();
-  }
-  OpenedWebView opened_web_view;
-  opened_web_view.dialog_id_ = dialog_id;
-  opened_web_view.bot_user_id_ = bot_user_id;
-  opened_web_view.top_thread_message_id_ = top_thread_message_id;
-  opened_web_view.input_reply_to_ = std::move(input_reply_to);
-  opened_web_view.as_dialog_id_ = as_dialog_id;
-  opened_web_views_.emplace(query_id, std::move(opened_web_view));
-}
-
-void WebAppManager::close_web_view(int64 query_id, Promise<Unit> &&promise) {
-  opened_web_views_.erase(query_id);
-  if (opened_web_views_.empty()) {
-    ping_web_view_timeout_.cancel_timeout();
-  }
-  promise.set_value(Unit());
-}
-
-void WebAppManager::invoke_web_view_custom_method(UserId bot_user_id, const string &method, const string &parameters,
-                                                  Promise<td_api::object_ptr<td_api::customRequestResult>> &&promise) {
-  td_->create_handler<InvokeWebViewCustomMethodQuery>(std::move(promise))->send(bot_user_id, method, parameters);
-}
-
-void WebAppManager::check_download_file_params(UserId bot_user_id, const string &file_name, const string &url,
-                                               Promise<Unit> &&promise) {
-  TRY_RESULT_PROMISE(promise, input_user, td_->user_manager_->get_input_user(bot_user_id));
-  if (file_name.size() >= 256u || url.size() > 32768u || file_name.find('/') != string::npos ||
-      file_name.find('\\') != string::npos) {
-    return promise.set_error(Status::Error(400, "The file can't be downloaded"));
-  }
-  td_->create_handler<CheckDownloadFileParamsQuery>(std::move(promise))->send(std::move(input_user), file_name, url);
-}
-
-FileSourceId WebAppManager::get_web_app_file_source_id(UserId user_id, const string &short_name) {
-  if (G()->close_flag()) {
-    return FileSourceId();
-  }
-  if (!user_id.is_valid() || !td_->auth_manager_->is_authorized() || td_->auth_manager_->is_bot()) {
-    return FileSourceId();
-  }
-
-  auto &source_id = web_app_file_source_ids_[user_id][short_name];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_web_app_file_source(user_id, short_name);
-  }
-  VLOG(file_references) << "Return " << source_id << " for Web App " << user_id << '/' << short_name;
-  return source_id;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebAppManager.h b/third-party/td/td/td/telegram/WebAppManager.h
deleted file mode 100644
index c446c64710..0000000000
--- a/third-party/td/td/td/telegram/WebAppManager.h
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/MessageInputReplyTo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/Timeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-class WebAppOpenParameters;
-
-class WebAppManager final : public Actor {
- public:
-  WebAppManager(Td *td, ActorShared<> parent);
-
-  void get_popular_app_bots(const string &offset, int32 limit,
-                            Promise<td_api::object_ptr<td_api::foundUsers>> &&promise);
-
-  void get_web_app(UserId bot_user_id, const string &web_app_short_name,
-                   Promise<td_api::object_ptr<td_api::foundWebApp>> &&promise);
-
-  void reload_web_app(UserId bot_user_id, const string &web_app_short_name, Promise<Unit> &&promise);
-
-  void request_app_web_view(DialogId dialog_id, UserId bot_user_id, string &&web_app_short_name,
-                            string &&start_parameter, const WebAppOpenParameters &parameters, bool allow_write_access,
-                            Promise<string> &&promise);
-
-  void request_main_web_view(DialogId dialog_id, UserId bot_user_id, string &&start_parameter,
-                             const WebAppOpenParameters &parameters,
-                             Promise<td_api::object_ptr<td_api::mainWebApp>> &&promise);
-
-  void request_web_view(DialogId dialog_id, UserId bot_user_id, MessageId top_thread_message_id,
-                        td_api::object_ptr<td_api::InputMessageReplyTo> &&reply_to, string &&url,
-                        const WebAppOpenParameters &parameters,
-                        Promise<td_api::object_ptr<td_api::webAppInfo>> &&promise);
-
-  void open_web_view(int64 query_id, DialogId dialog_id, UserId bot_user_id, MessageId top_thread_message_id,
-                     MessageInputReplyTo &&input_reply_to, DialogId as_dialog_id);
-
-  void close_web_view(int64 query_id, Promise<Unit> &&promise);
-
-  void invoke_web_view_custom_method(UserId bot_user_id, const string &method, const string &parameters,
-                                     Promise<td_api::object_ptr<td_api::customRequestResult>> &&promise);
-
-  void check_download_file_params(UserId bot_user_id, const string &file_name, const string &url,
-                                  Promise<Unit> &&promise);
-
-  FileSourceId get_web_app_file_source_id(UserId user_id, const string &short_name);
-
- private:
-  static const int32 PING_WEB_VIEW_TIMEOUT = 60;
-
-  void start_up() final;
-
-  void tear_down() final;
-
-  void on_online(bool is_online);
-
-  static void ping_web_view_static(void *td_void);
-
-  void ping_web_view();
-
-  void schedule_ping_web_view();
-
-  void on_get_web_app(UserId bot_user_id, string web_app_short_name,
-                      Result<telegram_api::object_ptr<telegram_api::messages_botApp>> result,
-                      Promise<td_api::object_ptr<td_api::foundWebApp>> promise);
-
-  Td *td_;
-  ActorShared<> parent_;
-
-  FlatHashMap<UserId, FlatHashMap<string, FileSourceId>, UserIdHash> web_app_file_source_ids_;
-
-  struct OpenedWebView {
-    DialogId dialog_id_;
-    UserId bot_user_id_;
-    MessageId top_thread_message_id_;
-    MessageInputReplyTo input_reply_to_;
-    DialogId as_dialog_id_;
-  };
-  FlatHashMap<int64, OpenedWebView> opened_web_views_;
-  Timeout ping_web_view_timeout_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebAppOpenParameters.cpp b/third-party/td/td/td/telegram/WebAppOpenParameters.cpp
deleted file mode 100644
index a5966ad2e6..0000000000
--- a/third-party/td/td/td/telegram/WebAppOpenParameters.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/WebAppOpenParameters.h"
-
-#include "td/telegram/misc.h"
-#include "td/telegram/ThemeManager.h"
-
-namespace td {
-
-WebAppOpenParameters::WebAppOpenParameters(td_api::object_ptr<td_api::webAppOpenParameters> &&parameters) {
-  if (parameters != nullptr) {
-    theme_parameters_ = std::move(parameters->theme_);
-    application_name_ = std::move(parameters->application_name_);
-    if (!clean_input_string(application_name_)) {
-      application_name_.clear();
-    }
-    if (parameters->mode_ != nullptr) {
-      switch (parameters->mode_->get_id()) {
-        case td_api::webAppOpenModeCompact::ID:
-          is_compact_ = true;
-          break;
-        case td_api::webAppOpenModeFullSize::ID:
-          break;
-        case td_api::webAppOpenModeFullScreen::ID:
-          is_full_screen_ = true;
-          break;
-        default:
-          UNREACHABLE();
-      }
-    }
-  }
-}
-
-telegram_api::object_ptr<telegram_api::dataJSON> WebAppOpenParameters::get_input_theme_parameters() const {
-  if (theme_parameters_ == nullptr) {
-    return nullptr;
-  }
-  return telegram_api::make_object<telegram_api::dataJSON>(
-      ThemeManager::get_theme_parameters_json_string(theme_parameters_));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebAppOpenParameters.h b/third-party/td/td/td/telegram/WebAppOpenParameters.h
deleted file mode 100644
index f054e53e86..0000000000
--- a/third-party/td/td/td/telegram/WebAppOpenParameters.h
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class WebAppOpenParameters {
-  td_api::object_ptr<td_api::themeParameters> theme_parameters_;
-  string application_name_;
-  bool is_compact_ = false;
-  bool is_full_screen_ = false;
-
- public:
-  explicit WebAppOpenParameters(td_api::object_ptr<td_api::webAppOpenParameters> &&parameters);
-
-  telegram_api::object_ptr<telegram_api::dataJSON> get_input_theme_parameters() const;
-
-  const string &get_application_name() const {
-    return application_name_;
-  }
-
-  bool is_compact() const {
-    return is_compact_;
-  }
-
-  bool is_full_screen() const {
-    return is_full_screen_;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebPageBlock.cpp b/third-party/td/td/td/telegram/WebPageBlock.cpp
deleted file mode 100644
index dc8902af39..0000000000
--- a/third-party/td/td/td/telegram/WebPageBlock.cpp
+++ /dev/null
@@ -1,2494 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/WebPageBlock.h"
-
-#include "td/telegram/AccentColorId.h"
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AnimationsManager.hpp"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AudiosManager.hpp"
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/DocumentsManager.hpp"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/PeerColor.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/Photo.hpp"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeManager.h"
-#include "td/telegram/Version.h"
-#include "td/telegram/VideosManager.h"
-#include "td/telegram/VideosManager.hpp"
-#include "td/telegram/VoiceNotesManager.h"
-#include "td/telegram/VoiceNotesManager.hpp"
-#include "td/telegram/WebPageId.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <type_traits>
-#include <unordered_map>
-
-namespace td {
-
-class RichText;
-
-struct GetWebPageBlockObjectContext {
-  Td *td_ = nullptr;
-  Slice base_url_;
-  string real_url_host_;
-  string real_url_rhash_;
-
-  bool is_first_pass_ = true;
-  bool has_anchor_urls_ = false;
-  std::unordered_map<Slice, const RichText *, SliceHash> anchors_;  // anchor -> text
-};
-
-static vector<td_api::object_ptr<td_api::PageBlock>> get_page_blocks_object(
-    const vector<unique_ptr<WebPageBlock>> &page_blocks, GetWebPageBlockObjectContext *context) {
-  return transform(page_blocks, [context](const unique_ptr<WebPageBlock> &page_block) {
-    return page_block->get_page_block_object(context);
-  });
-}
-
-class RichText {
-  static vector<td_api::object_ptr<td_api::RichText>> get_rich_texts_object(const vector<RichText> &rich_texts,
-                                                                            GetWebPageBlockObjectContext *context) {
-    return transform(rich_texts,
-                     [context](const RichText &rich_text) { return rich_text.get_rich_text_object(context); });
-  }
-
- public:
-  enum class Type : int32 {
-    Plain,
-    Bold,
-    Italic,
-    Underline,
-    Strikethrough,
-    Fixed,
-    Url,
-    EmailAddress,
-    Concatenation,
-    Subscript,
-    Superscript,
-    Marked,
-    PhoneNumber,
-    Icon,
-    Anchor
-  };
-  Type type = Type::Plain;
-  string content;
-  vector<RichText> texts;
-  FileId document_file_id;
-  WebPageId web_page_id;
-
-  bool empty() const {
-    return type == Type::Plain && content.empty();
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const {
-    if (type == RichText::Type::Icon) {
-      CHECK(document_file_id.is_valid());
-      Document(Document::Type::General, document_file_id).append_file_ids(td, file_ids);
-    } else {
-      for (auto &text : texts) {
-        text.append_file_ids(td, file_ids);
-      }
-    }
-  }
-
-  td_api::object_ptr<td_api::RichText> get_rich_text_object(GetWebPageBlockObjectContext *context) const {
-    switch (type) {
-      case RichText::Type::Plain:
-        return make_tl_object<td_api::richTextPlain>(content);
-      case RichText::Type::Bold:
-        return make_tl_object<td_api::richTextBold>(texts[0].get_rich_text_object(context));
-      case RichText::Type::Italic:
-        return make_tl_object<td_api::richTextItalic>(texts[0].get_rich_text_object(context));
-      case RichText::Type::Underline:
-        return make_tl_object<td_api::richTextUnderline>(texts[0].get_rich_text_object(context));
-      case RichText::Type::Strikethrough:
-        return make_tl_object<td_api::richTextStrikethrough>(texts[0].get_rich_text_object(context));
-      case RichText::Type::Fixed:
-        return make_tl_object<td_api::richTextFixed>(texts[0].get_rich_text_object(context));
-      case RichText::Type::Url:
-        if (!context->base_url_.empty() && begins_with(content, context->base_url_) &&
-            content[context->base_url_.size()] == '#') {
-          if (context->is_first_pass_) {
-            context->has_anchor_urls_ = true;
-          } else {
-            auto anchor = Slice(content).substr(context->base_url_.size() + 1);
-            // https://html.spec.whatwg.org/multipage/browsing-the-web.html#the-indicated-part-of-the-document
-            for (int i = 0; i < 2; i++) {
-              string url_decoded_anchor;
-              if (i == 1) {  // try to url_decode anchor
-                url_decoded_anchor = url_decode(anchor, false);
-                anchor = url_decoded_anchor;
-              }
-              auto it = context->anchors_.find(anchor);
-              if (it != context->anchors_.end()) {
-                if (it->second == nullptr) {
-                  return make_tl_object<td_api::richTextAnchorLink>(texts[0].get_rich_text_object(context),
-                                                                    anchor.str(), content);
-                } else {
-                  return make_tl_object<td_api::richTextReference>(texts[0].get_rich_text_object(context), anchor.str(),
-                                                                   content);
-                }
-              }
-            }
-          }
-        }
-        if (!context->real_url_rhash_.empty() && get_url_host(content) == context->real_url_host_) {
-          if (context->is_first_pass_) {
-            context->has_anchor_urls_ = true;
-          } else {
-            return make_tl_object<td_api::richTextUrl>(
-                texts[0].get_rich_text_object(context),
-                LinkManager::get_instant_view_link(content, context->real_url_rhash_), true);
-          }
-        }
-        return make_tl_object<td_api::richTextUrl>(texts[0].get_rich_text_object(context), content,
-                                                   web_page_id.is_valid());
-      case RichText::Type::EmailAddress:
-        return make_tl_object<td_api::richTextEmailAddress>(texts[0].get_rich_text_object(context), content);
-      case RichText::Type::Concatenation:
-        return make_tl_object<td_api::richTexts>(get_rich_texts_object(texts, context));
-      case RichText::Type::Subscript:
-        return make_tl_object<td_api::richTextSubscript>(texts[0].get_rich_text_object(context));
-      case RichText::Type::Superscript:
-        return make_tl_object<td_api::richTextSuperscript>(texts[0].get_rich_text_object(context));
-      case RichText::Type::Marked:
-        return make_tl_object<td_api::richTextMarked>(texts[0].get_rich_text_object(context));
-      case RichText::Type::PhoneNumber:
-        return make_tl_object<td_api::richTextPhoneNumber>(texts[0].get_rich_text_object(context), content);
-      case RichText::Type::Icon: {
-        auto dimensions = to_integer<uint32>(content);
-        auto width = static_cast<int32>(dimensions / 65536);
-        auto height = static_cast<int32>(dimensions % 65536);
-        return make_tl_object<td_api::richTextIcon>(
-            context->td_->documents_manager_->get_document_object(document_file_id, PhotoFormat::Jpeg), width, height);
-      }
-      case RichText::Type::Anchor: {
-        if (context->is_first_pass_) {
-          context->anchors_.emplace(Slice(content), texts[0].empty() ? nullptr : &texts[0]);
-        }
-        if (texts[0].empty()) {
-          return make_tl_object<td_api::richTextAnchor>(content);
-        }
-        auto result = make_tl_object<td_api::richTexts>();
-        result->texts_.push_back(make_tl_object<td_api::richTextAnchor>(content));
-        result->texts_.push_back(texts[0].get_rich_text_object(context));
-        return std::move(result);
-      }
-    }
-    UNREACHABLE();
-    return nullptr;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(type, storer);
-    store(content, storer);
-    store(texts, storer);
-    if (type == Type::Icon) {
-      storer.context()->td().get_actor_unsafe()->documents_manager_->store_document(document_file_id, storer);
-    }
-    if (type == Type::Url) {
-      store(web_page_id, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(type, parser);
-    parse(content, parser);
-    parse(texts, parser);
-    if (type == Type::Icon) {
-      document_file_id = parser.context()->td().get_actor_unsafe()->documents_manager_->parse_document(parser);
-      if (!document_file_id.is_valid()) {
-        LOG(ERROR) << "Failed to load document from database";
-        *this = RichText();
-      }
-    } else {
-      document_file_id = FileId();
-    }
-    if (type == Type::Url && parser.version() >= static_cast<int32>(Version::SupportInstantView2_0)) {
-      parse(web_page_id, parser);
-    } else {
-      web_page_id = WebPageId();
-    }
-  }
-};
-
-namespace {
-
-class WebPageBlockCaption {
- public:
-  RichText text;
-  RichText credit;
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const {
-    text.append_file_ids(td, file_ids);
-    credit.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::pageBlockCaption> get_page_block_caption_object(
-      GetWebPageBlockObjectContext *context) const {
-    return td_api::make_object<td_api::pageBlockCaption>(text.get_rich_text_object(context),
-                                                         credit.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(text, storer);
-    store(credit, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(text, parser);
-    if (parser.version() >= static_cast<int32>(Version::SupportInstantView2_0)) {
-      parse(credit, parser);
-    } else {
-      credit = RichText();
-    }
-  }
-};
-
-class WebPageBlockTableCell {
- public:
-  RichText text;
-  bool is_header = false;
-  bool align_left = false;
-  bool align_center = false;
-  bool align_right = false;
-  bool valign_top = false;
-  bool valign_middle = false;
-  bool valign_bottom = false;
-  int32 colspan = 1;
-  int32 rowspan = 1;
-
-  td_api::object_ptr<td_api::pageBlockTableCell> get_page_block_table_cell_object(
-      GetWebPageBlockObjectContext *context) const {
-    auto align = [&]() -> td_api::object_ptr<td_api::PageBlockHorizontalAlignment> {
-      if (align_left) {
-        return td_api::make_object<td_api::pageBlockHorizontalAlignmentLeft>();
-      }
-      if (align_center) {
-        return td_api::make_object<td_api::pageBlockHorizontalAlignmentCenter>();
-      }
-      if (align_right) {
-        return td_api::make_object<td_api::pageBlockHorizontalAlignmentRight>();
-      }
-      UNREACHABLE();
-      return nullptr;
-    }();
-    auto valign = [&]() -> td_api::object_ptr<td_api::PageBlockVerticalAlignment> {
-      if (valign_top) {
-        return td_api::make_object<td_api::pageBlockVerticalAlignmentTop>();
-      }
-      if (valign_middle) {
-        return td_api::make_object<td_api::pageBlockVerticalAlignmentMiddle>();
-      }
-      if (valign_bottom) {
-        return td_api::make_object<td_api::pageBlockVerticalAlignmentBottom>();
-      }
-      UNREACHABLE();
-      return nullptr;
-    }();
-    return td_api::make_object<td_api::pageBlockTableCell>(text.empty() ? nullptr : text.get_rich_text_object(context),
-                                                           is_header, colspan, rowspan, std::move(align),
-                                                           std::move(valign));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    bool has_text = !text.empty();
-    bool has_colspan = colspan != 1;
-    bool has_rowspan = rowspan != 1;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_header);
-    STORE_FLAG(align_left);
-    STORE_FLAG(align_center);
-    STORE_FLAG(align_right);
-    STORE_FLAG(valign_top);
-    STORE_FLAG(valign_middle);
-    STORE_FLAG(valign_bottom);
-    STORE_FLAG(has_text);
-    STORE_FLAG(has_colspan);
-    STORE_FLAG(has_rowspan);
-    END_STORE_FLAGS();
-    if (has_text) {
-      store(text, storer);
-    }
-    if (has_colspan) {
-      store(colspan, storer);
-    }
-    if (has_rowspan) {
-      store(rowspan, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    bool has_text;
-    bool has_colspan;
-    bool has_rowspan;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_header);
-    PARSE_FLAG(align_left);
-    PARSE_FLAG(align_center);
-    PARSE_FLAG(align_right);
-    PARSE_FLAG(valign_top);
-    PARSE_FLAG(valign_middle);
-    PARSE_FLAG(valign_bottom);
-    PARSE_FLAG(has_text);
-    PARSE_FLAG(has_colspan);
-    PARSE_FLAG(has_rowspan);
-    END_PARSE_FLAGS();
-    if (has_text) {
-      parse(text, parser);
-    }
-    if (has_colspan) {
-      parse(colspan, parser);
-    }
-    if (has_rowspan) {
-      parse(rowspan, parser);
-    }
-  }
-};
-
-class RelatedArticle {
- public:
-  string url;
-  WebPageId web_page_id;
-  string title;
-  string description;
-  Photo photo;
-  string author;
-  int32 published_date = 0;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    bool has_title = !title.empty();
-    bool has_description = !description.empty();
-    bool has_photo = !photo.is_empty();
-    bool has_author = !author.empty();
-    bool has_date = published_date != 0;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_title);
-    STORE_FLAG(has_description);
-    STORE_FLAG(has_photo);
-    STORE_FLAG(has_author);
-    STORE_FLAG(has_date);
-    END_STORE_FLAGS();
-    store(url, storer);
-    store(web_page_id, storer);
-    if (has_title) {
-      store(title, storer);
-    }
-    if (has_description) {
-      store(description, storer);
-    }
-    if (has_photo) {
-      store(photo, storer);
-    }
-    if (has_author) {
-      store(author, storer);
-    }
-    if (has_date) {
-      store(published_date, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    bool has_title;
-    bool has_description;
-    bool has_photo;
-    bool has_author;
-    bool has_date;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_title);
-    PARSE_FLAG(has_description);
-    PARSE_FLAG(has_photo);
-    PARSE_FLAG(has_author);
-    PARSE_FLAG(has_date);
-    END_PARSE_FLAGS();
-    parse(url, parser);
-    parse(web_page_id, parser);
-    if (has_title) {
-      parse(title, parser);
-    }
-    if (has_description) {
-      parse(description, parser);
-    }
-    if (has_photo) {
-      parse(photo, parser);
-    }
-    if (has_author) {
-      parse(author, parser);
-    }
-    if (has_date) {
-      parse(published_date, parser);
-    }
-  }
-};
-
-class WebPageBlockTitle final : public WebPageBlock {
-  RichText title;
-
- public:
-  WebPageBlockTitle() = default;
-
-  explicit WebPageBlockTitle(RichText &&title) : title(std::move(title)) {
-  }
-
-  Type get_type() const final {
-    return Type::Title;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    title.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockTitle>(title.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(title, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(title, parser);
-  }
-};
-
-class WebPageBlockSubtitle final : public WebPageBlock {
-  RichText subtitle;
-
- public:
-  WebPageBlockSubtitle() = default;
-  explicit WebPageBlockSubtitle(RichText &&subtitle) : subtitle(std::move(subtitle)) {
-  }
-
-  Type get_type() const final {
-    return Type::Subtitle;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    subtitle.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockSubtitle>(subtitle.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(subtitle, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(subtitle, parser);
-  }
-};
-
-class WebPageBlockAuthorDate final : public WebPageBlock {
-  RichText author;
-  int32 date = 0;
-
- public:
-  WebPageBlockAuthorDate() = default;
-  WebPageBlockAuthorDate(RichText &&author, int32 date) : author(std::move(author)), date(max(date, 0)) {
-  }
-
-  Type get_type() const final {
-    return Type::AuthorDate;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    author.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockAuthorDate>(author.get_rich_text_object(context), date);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(author, storer);
-    store(date, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(author, parser);
-    parse(date, parser);
-  }
-};
-
-class WebPageBlockHeader final : public WebPageBlock {
-  RichText header;
-
- public:
-  WebPageBlockHeader() = default;
-  explicit WebPageBlockHeader(RichText &&header) : header(std::move(header)) {
-  }
-
-  Type get_type() const final {
-    return Type::Header;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    header.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockHeader>(header.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(header, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(header, parser);
-  }
-};
-
-class WebPageBlockSubheader final : public WebPageBlock {
-  RichText subheader;
-
- public:
-  WebPageBlockSubheader() = default;
-  explicit WebPageBlockSubheader(RichText &&subheader) : subheader(std::move(subheader)) {
-  }
-
-  Type get_type() const final {
-    return Type::Subheader;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    subheader.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockSubheader>(subheader.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(subheader, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(subheader, parser);
-  }
-};
-
-class WebPageBlockKicker final : public WebPageBlock {
-  RichText kicker;
-
- public:
-  WebPageBlockKicker() = default;
-  explicit WebPageBlockKicker(RichText &&kicker) : kicker(std::move(kicker)) {
-  }
-
-  Type get_type() const final {
-    return Type::Kicker;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    kicker.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockKicker>(kicker.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(kicker, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(kicker, parser);
-  }
-};
-
-class WebPageBlockParagraph final : public WebPageBlock {
-  RichText text;
-
- public:
-  WebPageBlockParagraph() = default;
-  explicit WebPageBlockParagraph(RichText &&text) : text(std::move(text)) {
-  }
-
-  Type get_type() const final {
-    return Type::Paragraph;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    text.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockParagraph>(text.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(text, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(text, parser);
-  }
-};
-
-class WebPageBlockPreformatted final : public WebPageBlock {
-  RichText text;
-  string language;
-
- public:
-  WebPageBlockPreformatted() = default;
-  WebPageBlockPreformatted(RichText &&text, string &&language) : text(std::move(text)), language(std::move(language)) {
-  }
-
-  Type get_type() const final {
-    return Type::Preformatted;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    text.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockPreformatted>(text.get_rich_text_object(context), language);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(text, storer);
-    store(language, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(text, parser);
-    parse(language, parser);
-  }
-};
-
-class WebPageBlockFooter final : public WebPageBlock {
-  RichText footer;
-
- public:
-  WebPageBlockFooter() = default;
-  explicit WebPageBlockFooter(RichText &&footer) : footer(std::move(footer)) {
-  }
-
-  Type get_type() const final {
-    return Type::Footer;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    footer.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockFooter>(footer.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(footer, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(footer, parser);
-  }
-};
-
-class WebPageBlockDivider final : public WebPageBlock {
- public:
-  Type get_type() const final {
-    return Type::Divider;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockDivider>();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-  }
-};
-
-class WebPageBlockAnchor final : public WebPageBlock {
-  string name;
-
- public:
-  WebPageBlockAnchor() = default;
-  explicit WebPageBlockAnchor(string &&name) : name(std::move(name)) {
-  }
-
-  Type get_type() const final {
-    return Type::Anchor;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    if (context->is_first_pass_) {
-      context->anchors_.emplace(name, nullptr);
-    }
-    return make_tl_object<td_api::pageBlockAnchor>(name);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(name, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(name, parser);
-  }
-};
-
-class WebPageBlockList final : public WebPageBlock {
- public:
-  struct Item {
-    string label;
-    vector<unique_ptr<WebPageBlock>> page_blocks;
-
-    template <class StorerT>
-    void store(StorerT &storer) const {
-      using ::td::store;
-      store(label, storer);
-      store(page_blocks, storer);
-    }
-
-    template <class ParserT>
-    void parse(ParserT &parser) {
-      using ::td::parse;
-      parse(label, parser);
-      parse(page_blocks, parser);
-    }
-  };
-
- private:
-  vector<Item> items;
-
-  static td_api::object_ptr<td_api::pageBlockListItem> get_page_block_list_item_object(const Item &item,
-                                                                                       Context *context) {
-    // if label is empty, then Bullet U+2022 is used as a label
-    return td_api::make_object<td_api::pageBlockListItem>(item.label.empty() ? "\xE2\x80\xA2" : item.label,
-                                                          get_page_blocks_object(item.page_blocks, context));
-  }
-
- public:
-  WebPageBlockList() = default;
-  explicit WebPageBlockList(vector<Item> &&items) : items(std::move(items)) {
-  }
-
-  Type get_type() const final {
-    return Type::List;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    for (auto &item : items) {
-      for (auto &page_block : item.page_blocks) {
-        page_block->append_file_ids(td, file_ids);
-      }
-    }
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return td_api::make_object<td_api::pageBlockList>(
-        transform(items, [context](const Item &item) { return get_page_block_list_item_object(item, context); }));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(items, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-
-    if (parser.version() >= static_cast<int32>(Version::SupportInstantView2_0)) {
-      parse(items, parser);
-    } else {
-      vector<RichText> text_items;
-      bool is_ordered;
-
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(is_ordered);
-      END_PARSE_FLAGS();
-
-      parse(text_items, parser);
-
-      int pos = 0;
-      items.reserve(text_items.size());
-      for (auto &text_item : text_items) {
-        Item item;
-        if (is_ordered) {
-          pos++;
-          item.label = (PSTRING() << pos << '.');
-        }
-        item.page_blocks.push_back(make_unique<WebPageBlockParagraph>(std::move(text_item)));
-        items.push_back(std::move(item));
-      }
-    }
-  }
-};
-
-class WebPageBlockBlockQuote final : public WebPageBlock {
-  RichText text;
-  RichText credit;
-
- public:
-  WebPageBlockBlockQuote() = default;
-  WebPageBlockBlockQuote(RichText &&text, RichText &&credit) : text(std::move(text)), credit(std::move(credit)) {
-  }
-
-  Type get_type() const final {
-    return Type::BlockQuote;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    text.append_file_ids(td, file_ids);
-    credit.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockBlockQuote>(text.get_rich_text_object(context),
-                                                       credit.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(text, storer);
-    store(credit, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(text, parser);
-    parse(credit, parser);
-  }
-};
-
-class WebPageBlockPullQuote final : public WebPageBlock {
-  RichText text;
-  RichText credit;
-
- public:
-  WebPageBlockPullQuote() = default;
-  WebPageBlockPullQuote(RichText &&text, RichText &&credit) : text(std::move(text)), credit(std::move(credit)) {
-  }
-
-  Type get_type() const final {
-    return Type::PullQuote;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    text.append_file_ids(td, file_ids);
-    credit.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockPullQuote>(text.get_rich_text_object(context),
-                                                      credit.get_rich_text_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(text, storer);
-    store(credit, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(text, parser);
-    parse(credit, parser);
-  }
-};
-
-class WebPageBlockAnimation final : public WebPageBlock {
-  FileId animation_file_id;
-  WebPageBlockCaption caption;
-  bool need_autoplay = false;
-
- public:
-  WebPageBlockAnimation() = default;
-  WebPageBlockAnimation(FileId animation_file_id, WebPageBlockCaption &&caption, bool need_autoplay)
-      : animation_file_id(animation_file_id), caption(std::move(caption)), need_autoplay(need_autoplay) {
-  }
-
-  Type get_type() const final {
-    return Type::Animation;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    caption.append_file_ids(td, file_ids);
-    Document(Document::Type::Animation, animation_file_id).append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockAnimation>(
-        context->td_->animations_manager_->get_animation_object(animation_file_id),
-        caption.get_page_block_caption_object(context), need_autoplay);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-
-    bool has_empty_animation = !animation_file_id.is_valid();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(need_autoplay);
-    STORE_FLAG(has_empty_animation);
-    END_STORE_FLAGS();
-
-    if (!has_empty_animation) {
-      storer.context()->td().get_actor_unsafe()->animations_manager_->store_animation(animation_file_id, storer);
-    }
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-
-    bool has_empty_animation;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(need_autoplay);
-    PARSE_FLAG(has_empty_animation);
-    END_PARSE_FLAGS();
-
-    if (parser.version() >= static_cast<int32>(Version::FixWebPageInstantViewDatabase)) {
-      if (!has_empty_animation) {
-        animation_file_id = parser.context()->td().get_actor_unsafe()->animations_manager_->parse_animation(parser);
-      } else {
-        animation_file_id = FileId();
-      }
-    } else {
-      animation_file_id = FileId();
-      parser.set_error("Wrong stored object");
-    }
-    parse(caption, parser);
-  }
-};
-
-class WebPageBlockPhoto final : public WebPageBlock {
-  Photo photo;
-  WebPageBlockCaption caption;
-  string url;
-  WebPageId web_page_id;
-
- public:
-  WebPageBlockPhoto() = default;
-  WebPageBlockPhoto(Photo &&photo, WebPageBlockCaption &&caption, string &&url, WebPageId web_page_id)
-      : photo(std::move(photo)), caption(std::move(caption)), url(std::move(url)), web_page_id(web_page_id) {
-  }
-
-  Type get_type() const final {
-    return Type::Photo;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    append(file_ids, photo_get_file_ids(photo));
-    caption.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockPhoto>(get_photo_object(context->td_->file_manager_.get(), photo),
-                                                  caption.get_page_block_caption_object(context), url);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(photo, storer);
-    store(caption, storer);
-    store(url, storer);
-    store(web_page_id, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(photo, parser);
-    parse(caption, parser);
-    if (parser.version() >= static_cast<int32>(Version::SupportInstantView2_0)) {
-      parse(url, parser);
-      parse(web_page_id, parser);
-    } else {
-      url.clear();
-      web_page_id = WebPageId();
-    }
-  }
-};
-
-class WebPageBlockVideo final : public WebPageBlock {
-  FileId video_file_id;
-  WebPageBlockCaption caption;
-  bool need_autoplay = false;
-  bool is_looped = false;
-
- public:
-  WebPageBlockVideo() = default;
-  WebPageBlockVideo(FileId video_file_id, WebPageBlockCaption &&caption, bool need_autoplay, bool is_looped)
-      : video_file_id(video_file_id), caption(std::move(caption)), need_autoplay(need_autoplay), is_looped(is_looped) {
-  }
-
-  Type get_type() const final {
-    return Type::Video;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    caption.append_file_ids(td, file_ids);
-    Document(Document::Type::Video, video_file_id).append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockVideo>(context->td_->videos_manager_->get_video_object(video_file_id),
-                                                  caption.get_page_block_caption_object(context), need_autoplay,
-                                                  is_looped);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-
-    bool has_empty_video = !video_file_id.is_valid();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(need_autoplay);
-    STORE_FLAG(is_looped);
-    STORE_FLAG(has_empty_video);
-    END_STORE_FLAGS();
-
-    if (!has_empty_video) {
-      storer.context()->td().get_actor_unsafe()->videos_manager_->store_video(video_file_id, storer);
-    }
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-
-    bool has_empty_video;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(need_autoplay);
-    PARSE_FLAG(is_looped);
-    PARSE_FLAG(has_empty_video);
-    END_PARSE_FLAGS();
-
-    if (parser.version() >= static_cast<int32>(Version::FixWebPageInstantViewDatabase)) {
-      if (!has_empty_video) {
-        video_file_id = parser.context()->td().get_actor_unsafe()->videos_manager_->parse_video(parser);
-      } else {
-        video_file_id = FileId();
-      }
-    } else {
-      video_file_id = FileId();
-      parser.set_error("Wrong stored object");
-    }
-    parse(caption, parser);
-  }
-};
-
-class WebPageBlockCover final : public WebPageBlock {
-  unique_ptr<WebPageBlock> cover;
-
- public:
-  WebPageBlockCover() = default;
-  explicit WebPageBlockCover(unique_ptr<WebPageBlock> &&cover) : cover(std::move(cover)) {
-  }
-
-  Type get_type() const final {
-    return Type::Cover;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    cover->append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockCover>(cover->get_page_block_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(cover, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(cover, parser);
-  }
-};
-
-class WebPageBlockEmbedded final : public WebPageBlock {
-  string url;
-  string html;
-  Photo poster_photo;
-  Dimensions dimensions;
-  WebPageBlockCaption caption;
-  bool is_full_width;
-  bool allow_scrolling;
-
- public:
-  WebPageBlockEmbedded() = default;
-  WebPageBlockEmbedded(string &&url, string &&html, Photo &&poster_photo, Dimensions dimensions,
-                       WebPageBlockCaption &&caption, bool is_full_width, bool allow_scrolling)
-      : url(std::move(url))
-      , html(std::move(html))
-      , poster_photo(std::move(poster_photo))
-      , dimensions(dimensions)
-      , caption(std::move(caption))
-      , is_full_width(is_full_width)
-      , allow_scrolling(allow_scrolling) {
-  }
-
-  Type get_type() const final {
-    return Type::Embedded;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    append(file_ids, photo_get_file_ids(poster_photo));
-    caption.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockEmbedded>(
-        url, html, get_photo_object(context->td_->file_manager_.get(), poster_photo), dimensions.width,
-        dimensions.height, caption.get_page_block_caption_object(context), is_full_width, allow_scrolling);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_full_width);
-    STORE_FLAG(allow_scrolling);
-    END_STORE_FLAGS();
-
-    store(url, storer);
-    store(html, storer);
-    store(poster_photo, storer);
-    store(dimensions, storer);
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_full_width);
-    PARSE_FLAG(allow_scrolling);
-    END_PARSE_FLAGS();
-
-    parse(url, parser);
-    parse(html, parser);
-    parse(poster_photo, parser);
-    parse(dimensions, parser);
-    parse(caption, parser);
-  }
-};
-
-class WebPageBlockEmbeddedPost final : public WebPageBlock {
-  string url;
-  string author;
-  Photo author_photo;
-  int32 date;
-  vector<unique_ptr<WebPageBlock>> page_blocks;
-  WebPageBlockCaption caption;
-
- public:
-  WebPageBlockEmbeddedPost() = default;
-  WebPageBlockEmbeddedPost(string &&url, string &&author, Photo &&author_photo, int32 date,
-                           vector<unique_ptr<WebPageBlock>> &&page_blocks, WebPageBlockCaption &&caption)
-      : url(std::move(url))
-      , author(std::move(author))
-      , author_photo(std::move(author_photo))
-      , date(max(date, 0))
-      , page_blocks(std::move(page_blocks))
-      , caption(std::move(caption)) {
-  }
-
-  Type get_type() const final {
-    return Type::EmbeddedPost;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    append(file_ids, photo_get_file_ids(author_photo));
-    for (auto &page_block : page_blocks) {
-      page_block->append_file_ids(td, file_ids);
-    }
-    caption.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockEmbeddedPost>(
-        url, author, get_photo_object(context->td_->file_manager_.get(), author_photo), date,
-        get_page_blocks_object(page_blocks, context), caption.get_page_block_caption_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(url, storer);
-    store(author, storer);
-    store(author_photo, storer);
-    store(date, storer);
-    store(page_blocks, storer);
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(url, parser);
-    parse(author, parser);
-    parse(author_photo, parser);
-    parse(date, parser);
-    parse(page_blocks, parser);
-    parse(caption, parser);
-  }
-};
-
-class WebPageBlockCollage final : public WebPageBlock {
-  vector<unique_ptr<WebPageBlock>> page_blocks;
-  WebPageBlockCaption caption;
-
- public:
-  WebPageBlockCollage() = default;
-  WebPageBlockCollage(vector<unique_ptr<WebPageBlock>> &&page_blocks, WebPageBlockCaption &&caption)
-      : page_blocks(std::move(page_blocks)), caption(std::move(caption)) {
-  }
-
-  Type get_type() const final {
-    return Type::Collage;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    for (auto &page_block : page_blocks) {
-      page_block->append_file_ids(td, file_ids);
-    }
-    caption.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockCollage>(get_page_blocks_object(page_blocks, context),
-                                                    caption.get_page_block_caption_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(page_blocks, storer);
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(page_blocks, parser);
-    parse(caption, parser);
-  }
-};
-
-class WebPageBlockSlideshow final : public WebPageBlock {
-  vector<unique_ptr<WebPageBlock>> page_blocks;
-  WebPageBlockCaption caption;
-
- public:
-  WebPageBlockSlideshow() = default;
-  WebPageBlockSlideshow(vector<unique_ptr<WebPageBlock>> &&page_blocks, WebPageBlockCaption &&caption)
-      : page_blocks(std::move(page_blocks)), caption(std::move(caption)) {
-  }
-
-  Type get_type() const final {
-    return Type::Slideshow;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    for (auto &page_block : page_blocks) {
-      page_block->append_file_ids(td, file_ids);
-    }
-    caption.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockSlideshow>(get_page_blocks_object(page_blocks, context),
-                                                      caption.get_page_block_caption_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(page_blocks, storer);
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(page_blocks, parser);
-    parse(caption, parser);
-  }
-};
-
-class WebPageBlockChatLink final : public WebPageBlock {
-  string title;
-  DialogPhoto photo;
-  string username;
-  AccentColorId accent_color_id;
-  ChannelId channel_id;
-
- public:
-  WebPageBlockChatLink() = default;
-  WebPageBlockChatLink(string &&title, DialogPhoto photo, string &&username, AccentColorId accent_color_id,
-                       ChannelId channel_id)
-      : title(std::move(title))
-      , photo(std::move(photo))
-      , username(std::move(username))
-      , accent_color_id(accent_color_id)
-      , channel_id(channel_id) {
-  }
-
-  Type get_type() const final {
-    return Type::ChatLink;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    append(file_ids, dialog_photo_get_file_ids(photo));
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockChatLink>(
-        title, get_chat_photo_info_object(context->td_->file_manager_.get(), &photo),
-        context->td_->theme_manager_->get_accent_color_id_object(accent_color_id, AccentColorId(channel_id)), username);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    bool has_title = !title.empty();
-    bool has_photo = photo.small_file_id.is_valid();
-    bool has_username = !username.empty();
-    bool has_accent_color_id = true;
-    bool has_channel_id = channel_id.is_valid();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_title);
-    STORE_FLAG(has_photo);
-    STORE_FLAG(has_username);
-    STORE_FLAG(has_accent_color_id);
-    STORE_FLAG(has_channel_id);
-    END_STORE_FLAGS();
-    if (has_title) {
-      store(title, storer);
-    }
-    if (has_photo) {
-      store(photo, storer);
-    }
-    if (has_username) {
-      store(username, storer);
-    }
-    store(accent_color_id, storer);
-    if (has_channel_id) {
-      store(channel_id, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    bool has_title;
-    bool has_photo;
-    bool has_username;
-    bool has_accent_color_id = false;
-    bool has_channel_id = false;
-    if (parser.version() >= static_cast<int32>(Version::AddPageBlockChatLinkFlags)) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_title);
-      PARSE_FLAG(has_photo);
-      PARSE_FLAG(has_username);
-      PARSE_FLAG(has_accent_color_id);
-      PARSE_FLAG(has_channel_id);
-      END_PARSE_FLAGS();
-    } else {
-      has_title = true;
-      has_photo = true;
-      has_username = true;
-    }
-    if (has_title) {
-      parse(title, parser);
-    }
-    if (has_photo) {
-      parse(photo, parser);
-    }
-    if (has_username) {
-      parse(username, parser);
-    }
-    if (has_accent_color_id) {
-      parse(accent_color_id, parser);
-    } else {
-      accent_color_id = AccentColorId(5);  // blue
-    }
-    if (has_channel_id) {
-      parse(channel_id, parser);
-    } else {
-      channel_id = ChannelId(static_cast<int64>(5));  // blue
-    }
-  }
-};
-
-class WebPageBlockAudio final : public WebPageBlock {
-  FileId audio_file_id;
-  WebPageBlockCaption caption;
-
- public:
-  WebPageBlockAudio() = default;
-  WebPageBlockAudio(FileId audio_file_id, WebPageBlockCaption &&caption)
-      : audio_file_id(audio_file_id), caption(std::move(caption)) {
-  }
-
-  Type get_type() const final {
-    return Type::Audio;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    Document(Document::Type::Audio, audio_file_id).append_file_ids(td, file_ids);
-    caption.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockAudio>(context->td_->audios_manager_->get_audio_object(audio_file_id),
-                                                  caption.get_page_block_caption_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-
-    bool has_empty_audio = !audio_file_id.is_valid();
-    bool is_voice_note_repaired = true;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_empty_audio);
-    STORE_FLAG(is_voice_note_repaired);
-    END_STORE_FLAGS();
-
-    if (!has_empty_audio) {
-      storer.context()->td().get_actor_unsafe()->audios_manager_->store_audio(audio_file_id, storer);
-    }
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-
-    bool has_empty_audio;
-    bool is_voice_note_repaired;
-    if (parser.version() >= static_cast<int32>(Version::FixPageBlockAudioEmptyFile)) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_empty_audio);
-      PARSE_FLAG(is_voice_note_repaired);
-      END_PARSE_FLAGS();
-    } else {
-      has_empty_audio = false;
-      is_voice_note_repaired = false;
-    }
-
-    if (!has_empty_audio) {
-      audio_file_id = parser.context()->td().get_actor_unsafe()->audios_manager_->parse_audio(parser);
-    } else {
-      if (!is_voice_note_repaired) {
-        parser.set_error("Trying to repair WebPageBlockVoiceNote");
-      }
-      audio_file_id = FileId();
-    }
-    parse(caption, parser);
-  }
-};
-
-class WebPageBlockTable final : public WebPageBlock {
-  RichText title;
-  vector<vector<WebPageBlockTableCell>> cells;
-  bool is_bordered = false;
-  bool is_striped = false;
-
- public:
-  WebPageBlockTable() = default;
-  WebPageBlockTable(RichText &&title, vector<vector<WebPageBlockTableCell>> &&cells, bool is_bordered, bool is_striped)
-      : title(std::move(title)), cells(std::move(cells)), is_bordered(is_bordered), is_striped(is_striped) {
-  }
-
-  Type get_type() const final {
-    return Type::Table;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    title.append_file_ids(td, file_ids);
-    for (auto &row : cells) {
-      for (auto &cell : row) {
-        cell.text.append_file_ids(td, file_ids);
-      }
-    }
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    auto cell_objects = transform(cells, [&](const vector<WebPageBlockTableCell> &row) {
-      return transform(
-          row, [&](const WebPageBlockTableCell &cell) { return cell.get_page_block_table_cell_object(context); });
-    });
-
-    return make_tl_object<td_api::pageBlockTable>(title.get_rich_text_object(context), std::move(cell_objects),
-                                                  is_bordered, is_striped);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_bordered);
-    STORE_FLAG(is_striped);
-    END_STORE_FLAGS();
-    store(title, storer);
-    store(cells, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_bordered);
-    PARSE_FLAG(is_striped);
-    END_PARSE_FLAGS();
-    parse(title, parser);
-    parse(cells, parser);
-  }
-};
-
-class WebPageBlockDetails final : public WebPageBlock {
-  RichText header;
-  vector<unique_ptr<WebPageBlock>> page_blocks;
-  bool is_open;
-
- public:
-  WebPageBlockDetails() = default;
-  WebPageBlockDetails(RichText &&header, vector<unique_ptr<WebPageBlock>> &&page_blocks, bool is_open)
-      : header(std::move(header)), page_blocks(std::move(page_blocks)), is_open(is_open) {
-  }
-
-  Type get_type() const final {
-    return Type::Details;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    header.append_file_ids(td, file_ids);
-    for (auto &page_block : page_blocks) {
-      page_block->append_file_ids(td, file_ids);
-    }
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockDetails>(header.get_rich_text_object(context),
-                                                    get_page_blocks_object(page_blocks, context), is_open);
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_open);
-    END_STORE_FLAGS();
-    store(header, storer);
-    store(page_blocks, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_open);
-    END_PARSE_FLAGS();
-    parse(header, parser);
-    parse(page_blocks, parser);
-  }
-};
-
-class WebPageBlockRelatedArticles final : public WebPageBlock {
-  RichText header;
-  vector<RelatedArticle> related_articles;
-
- public:
-  WebPageBlockRelatedArticles() = default;
-  WebPageBlockRelatedArticles(RichText &&header, vector<RelatedArticle> &&related_articles)
-      : header(std::move(header)), related_articles(std::move(related_articles)) {
-  }
-
-  Type get_type() const final {
-    return Type::RelatedArticles;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    header.append_file_ids(td, file_ids);
-    for (auto &article : related_articles) {
-      if (!article.photo.is_empty()) {
-        append(file_ids, photo_get_file_ids(article.photo));
-      }
-    }
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    auto related_article_objects = transform(related_articles, [context](const RelatedArticle &article) {
-      return td_api::make_object<td_api::pageBlockRelatedArticle>(
-          article.url, article.title, article.description,
-          get_photo_object(context->td_->file_manager_.get(), article.photo), article.author, article.published_date);
-    });
-    return make_tl_object<td_api::pageBlockRelatedArticles>(header.get_rich_text_object(context),
-                                                            std::move(related_article_objects));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(header, storer);
-    store(related_articles, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(header, parser);
-    parse(related_articles, parser);
-  }
-};
-
-class WebPageBlockMap final : public WebPageBlock {
-  Location location;
-  int32 zoom = 0;
-  Dimensions dimensions;
-  WebPageBlockCaption caption;
-
- public:
-  WebPageBlockMap() = default;
-  WebPageBlockMap(Location location, int32 zoom, Dimensions dimensions, WebPageBlockCaption &&caption)
-      : location(std::move(location)), zoom(zoom), dimensions(dimensions), caption(std::move(caption)) {
-  }
-
-  Type get_type() const final {
-    return Type::Map;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    caption.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockMap>(location.get_location_object(), zoom, dimensions.width,
-                                                dimensions.height, caption.get_page_block_caption_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    store(location, storer);
-    store(zoom, storer);
-    store(dimensions, storer);
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    parse(location, parser);
-    parse(zoom, parser);
-    parse(dimensions, parser);
-    parse(caption, parser);
-  }
-};
-
-class WebPageBlockVoiceNote final : public WebPageBlock {
-  FileId voice_note_file_id;
-  WebPageBlockCaption caption;
-
- public:
-  WebPageBlockVoiceNote() = default;
-  WebPageBlockVoiceNote(FileId voice_note_file_id, WebPageBlockCaption &&caption)
-      : voice_note_file_id(voice_note_file_id), caption(std::move(caption)) {
-  }
-
-  Type get_type() const final {
-    return Type::VoiceNote;
-  }
-
-  void append_file_ids(const Td *td, vector<FileId> &file_ids) const final {
-    Document(Document::Type::VoiceNote, voice_note_file_id).append_file_ids(td, file_ids);
-    caption.append_file_ids(td, file_ids);
-  }
-
-  td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const final {
-    return make_tl_object<td_api::pageBlockVoiceNote>(
-        context->td_->voice_notes_manager_->get_voice_note_object(voice_note_file_id),
-        caption.get_page_block_caption_object(context));
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-
-    bool has_empty_voice_note = !voice_note_file_id.is_valid();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_empty_voice_note);
-    END_STORE_FLAGS();
-
-    if (!has_empty_voice_note) {
-      storer.context()->td().get_actor_unsafe()->voice_notes_manager_->store_voice_note(voice_note_file_id, storer);
-    }
-    store(caption, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-
-    bool has_empty_voice_note;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_empty_voice_note);
-    END_PARSE_FLAGS();
-
-    if (!has_empty_voice_note) {
-      voice_note_file_id = parser.context()->td().get_actor_unsafe()->voice_notes_manager_->parse_voice_note(parser);
-    } else {
-      voice_note_file_id = FileId();
-    }
-    parse(caption, parser);
-  }
-};
-
-vector<RichText> get_rich_texts(vector<tl_object_ptr<telegram_api::RichText>> &&rich_text_ptrs,
-                                const FlatHashMap<int64, FileId> &documents);
-
-RichText get_rich_text(tl_object_ptr<telegram_api::RichText> &&rich_text_ptr,
-                       const FlatHashMap<int64, FileId> &documents) {
-  CHECK(rich_text_ptr != nullptr);
-
-  RichText result;
-  switch (rich_text_ptr->get_id()) {
-    case telegram_api::textEmpty::ID:
-      break;
-    case telegram_api::textPlain::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textPlain>(rich_text_ptr);
-      result.content = std::move(rich_text->text_);
-      break;
-    }
-    case telegram_api::textBold::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textBold>(rich_text_ptr);
-      result.type = RichText::Type::Bold;
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textItalic::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textItalic>(rich_text_ptr);
-      result.type = RichText::Type::Italic;
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textUnderline::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textUnderline>(rich_text_ptr);
-      result.type = RichText::Type::Underline;
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textStrike::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textStrike>(rich_text_ptr);
-      result.type = RichText::Type::Strikethrough;
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textFixed::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textFixed>(rich_text_ptr);
-      result.type = RichText::Type::Fixed;
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textUrl::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textUrl>(rich_text_ptr);
-      result.type = RichText::Type::Url;
-      result.content = std::move(rich_text->url_);
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      result.web_page_id = WebPageId(rich_text->webpage_id_);
-      break;
-    }
-    case telegram_api::textEmail::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textEmail>(rich_text_ptr);
-      result.type = RichText::Type::EmailAddress;
-      result.content = std::move(rich_text->email_);
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textConcat::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textConcat>(rich_text_ptr);
-      result.type = RichText::Type::Concatenation;
-      result.texts = get_rich_texts(std::move(rich_text->texts_), documents);
-      break;
-    }
-    case telegram_api::textSubscript::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textSubscript>(rich_text_ptr);
-      result.type = RichText::Type::Subscript;
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textSuperscript::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textSuperscript>(rich_text_ptr);
-      result.type = RichText::Type::Superscript;
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textMarked::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textMarked>(rich_text_ptr);
-      result.type = RichText::Type::Marked;
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textPhone::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textPhone>(rich_text_ptr);
-      result.type = RichText::Type::PhoneNumber;
-      result.content = std::move(rich_text->phone_);
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    case telegram_api::textImage::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textImage>(rich_text_ptr);
-      auto it = documents.find(rich_text->document_id_);
-      if (it != documents.end()) {
-        result.type = RichText::Type::Icon;
-        result.document_file_id = it->second;
-        Dimensions dimensions = get_dimensions(rich_text->w_, rich_text->h_, "textImage");
-        result.content = PSTRING() << (dimensions.width * static_cast<uint32>(65536) + dimensions.height);
-      } else {
-        LOG(ERROR) << "Can't find document " << rich_text->document_id_;
-      }
-      break;
-    }
-    case telegram_api::textAnchor::ID: {
-      auto rich_text = move_tl_object_as<telegram_api::textAnchor>(rich_text_ptr);
-      result.type = RichText::Type::Anchor;
-      result.content = std::move(rich_text->name_);
-      result.texts.push_back(get_rich_text(std::move(rich_text->text_), documents));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  return result;
-}
-
-vector<RichText> get_rich_texts(vector<tl_object_ptr<telegram_api::RichText>> &&rich_text_ptrs,
-                                const FlatHashMap<int64, FileId> &documents) {
-  return transform(std::move(rich_text_ptrs), [&documents](tl_object_ptr<telegram_api::RichText> &&rich_text) {
-    return get_rich_text(std::move(rich_text), documents);
-  });
-}
-
-WebPageBlockCaption get_page_block_caption(tl_object_ptr<telegram_api::pageCaption> &&page_caption,
-                                           const FlatHashMap<int64, FileId> &documents) {
-  CHECK(page_caption != nullptr);
-  WebPageBlockCaption result;
-  result.text = get_rich_text(std::move(page_caption->text_), documents);
-  result.credit = get_rich_text(std::move(page_caption->credit_), documents);
-  return result;
-}
-
-unique_ptr<WebPageBlock> get_web_page_block(Td *td, tl_object_ptr<telegram_api::PageBlock> page_block_ptr,
-                                            const FlatHashMap<int64, FileId> &animations,
-                                            const FlatHashMap<int64, FileId> &audios,
-                                            const FlatHashMap<int64, FileId> &documents,
-                                            const FlatHashMap<int64, unique_ptr<Photo>> &photos,
-                                            const FlatHashMap<int64, FileId> &videos,
-                                            const FlatHashMap<int64, FileId> &voice_notes) {
-  CHECK(page_block_ptr != nullptr);
-  switch (page_block_ptr->get_id()) {
-    case telegram_api::pageBlockUnsupported::ID:
-      return nullptr;
-    case telegram_api::pageBlockTitle::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockTitle>(page_block_ptr);
-      return make_unique<WebPageBlockTitle>(get_rich_text(std::move(page_block->text_), documents));
-    }
-    case telegram_api::pageBlockSubtitle::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockSubtitle>(page_block_ptr);
-      return make_unique<WebPageBlockSubtitle>(get_rich_text(std::move(page_block->text_), documents));
-    }
-    case telegram_api::pageBlockAuthorDate::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockAuthorDate>(page_block_ptr);
-      return make_unique<WebPageBlockAuthorDate>(get_rich_text(std::move(page_block->author_), documents),
-                                                 page_block->published_date_);
-    }
-    case telegram_api::pageBlockHeader::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockHeader>(page_block_ptr);
-      return make_unique<WebPageBlockHeader>(get_rich_text(std::move(page_block->text_), documents));
-    }
-    case telegram_api::pageBlockSubheader::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockSubheader>(page_block_ptr);
-      return make_unique<WebPageBlockSubheader>(get_rich_text(std::move(page_block->text_), documents));
-    }
-    case telegram_api::pageBlockKicker::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockKicker>(page_block_ptr);
-      return make_unique<WebPageBlockKicker>(get_rich_text(std::move(page_block->text_), documents));
-    }
-    case telegram_api::pageBlockParagraph::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockParagraph>(page_block_ptr);
-      return make_unique<WebPageBlockParagraph>(get_rich_text(std::move(page_block->text_), documents));
-    }
-    case telegram_api::pageBlockPreformatted::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockPreformatted>(page_block_ptr);
-      return td::make_unique<WebPageBlockPreformatted>(get_rich_text(std::move(page_block->text_), documents),
-                                                       std::move(page_block->language_));
-    }
-    case telegram_api::pageBlockFooter::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockFooter>(page_block_ptr);
-      return make_unique<WebPageBlockFooter>(get_rich_text(std::move(page_block->text_), documents));
-    }
-    case telegram_api::pageBlockDivider::ID:
-      return make_unique<WebPageBlockDivider>();
-    case telegram_api::pageBlockAnchor::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockAnchor>(page_block_ptr);
-      return td::make_unique<WebPageBlockAnchor>(std::move(page_block->name_));
-    }
-    case telegram_api::pageBlockList::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockList>(page_block_ptr);
-      return td::make_unique<WebPageBlockList>(transform(std::move(page_block->items_), [&](auto &&list_item_ptr) {
-        WebPageBlockList::Item item;
-        CHECK(list_item_ptr != nullptr);
-        switch (list_item_ptr->get_id()) {
-          case telegram_api::pageListItemText::ID: {
-            auto list_item = telegram_api::move_object_as<telegram_api::pageListItemText>(list_item_ptr);
-            item.page_blocks.push_back(
-                make_unique<WebPageBlockParagraph>(get_rich_text(std::move(list_item->text_), documents)));
-            break;
-          }
-          case telegram_api::pageListItemBlocks::ID: {
-            auto list_item = telegram_api::move_object_as<telegram_api::pageListItemBlocks>(list_item_ptr);
-            item.page_blocks = get_web_page_blocks(td, std::move(list_item->blocks_), animations, audios, documents,
-                                                   photos, videos, voice_notes);
-            break;
-          }
-        }
-        if (item.page_blocks.empty()) {
-          item.page_blocks.push_back(make_unique<WebPageBlockParagraph>(RichText()));
-        }
-        return item;
-      }));
-    }
-    case telegram_api::pageBlockOrderedList::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockOrderedList>(page_block_ptr);
-      int32 current_label = 0;
-      return td::make_unique<WebPageBlockList>(transform(std::move(page_block->items_), [&](auto &&list_item_ptr) {
-        WebPageBlockList::Item item;
-        CHECK(list_item_ptr != nullptr);
-        switch (list_item_ptr->get_id()) {
-          case telegram_api::pageListOrderedItemText::ID: {
-            auto list_item = telegram_api::move_object_as<telegram_api::pageListOrderedItemText>(list_item_ptr);
-            item.label = std::move(list_item->num_);
-            item.page_blocks.push_back(
-                make_unique<WebPageBlockParagraph>(get_rich_text(std::move(list_item->text_), documents)));
-            break;
-          }
-          case telegram_api::pageListOrderedItemBlocks::ID: {
-            auto list_item = telegram_api::move_object_as<telegram_api::pageListOrderedItemBlocks>(list_item_ptr);
-            item.label = std::move(list_item->num_);
-            item.page_blocks = get_web_page_blocks(td, std::move(list_item->blocks_), animations, audios, documents,
-                                                   photos, videos, voice_notes);
-            break;
-          }
-        }
-        if (item.page_blocks.empty()) {
-          item.page_blocks.push_back(make_unique<WebPageBlockParagraph>(RichText()));
-        }
-        ++current_label;
-        if (item.label.empty()) {
-          item.label = PSTRING() << current_label << '.';
-        } else {
-          item.label += '.';
-        }
-        return item;
-      }));
-    }
-    case telegram_api::pageBlockBlockquote::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockBlockquote>(page_block_ptr);
-      return make_unique<WebPageBlockBlockQuote>(get_rich_text(std::move(page_block->text_), documents),
-                                                 get_rich_text(std::move(page_block->caption_), documents));
-    }
-    case telegram_api::pageBlockPullquote::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockPullquote>(page_block_ptr);
-      return make_unique<WebPageBlockPullQuote>(get_rich_text(std::move(page_block->text_), documents),
-                                                get_rich_text(std::move(page_block->caption_), documents));
-    }
-    case telegram_api::pageBlockPhoto::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockPhoto>(page_block_ptr);
-      auto it = photos.find(page_block->photo_id_);
-      Photo photo;
-      if (it != photos.end()) {
-        photo = *it->second;
-      }
-      return td::make_unique<WebPageBlockPhoto>(std::move(photo),
-                                                get_page_block_caption(std::move(page_block->caption_), documents),
-                                                std::move(page_block->url_), WebPageId(page_block->webpage_id_));
-    }
-    case telegram_api::pageBlockVideo::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockVideo>(page_block_ptr);
-      bool need_autoplay = page_block->autoplay_;
-      bool is_looped = page_block->loop_;
-      auto animations_it = animations.find(page_block->video_id_);
-      if (animations_it != animations.end()) {
-        return make_unique<WebPageBlockAnimation>(
-            animations_it->second, get_page_block_caption(std::move(page_block->caption_), documents), need_autoplay);
-      }
-
-      auto it = videos.find(page_block->video_id_);
-      FileId video_file_id;
-      if (it != videos.end()) {
-        video_file_id = it->second;
-      }
-      return make_unique<WebPageBlockVideo>(
-          video_file_id, get_page_block_caption(std::move(page_block->caption_), documents), need_autoplay, is_looped);
-    }
-    case telegram_api::pageBlockCover::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockCover>(page_block_ptr);
-      auto cover = get_web_page_block(td, std::move(page_block->cover_), animations, audios, documents, photos, videos,
-                                      voice_notes);
-      if (cover == nullptr) {
-        return nullptr;
-      }
-      return make_unique<WebPageBlockCover>(std::move(cover));
-    }
-    case telegram_api::pageBlockEmbed::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockEmbed>(page_block_ptr);
-      bool is_full_width = page_block->full_width_;
-      bool allow_scrolling = page_block->allow_scrolling_;
-      bool has_dimensions = (page_block->flags_ & telegram_api::pageBlockEmbed::W_MASK) != 0;
-      Photo poster_photo;
-      auto it = photos.find(page_block->poster_photo_id_);
-      if (it != photos.end()) {
-        poster_photo = *it->second;
-      }
-      Dimensions dimensions;
-      if (has_dimensions) {
-        dimensions = get_dimensions(page_block->w_, page_block->h_, "pageBlockEmbed");
-      }
-      return td::make_unique<WebPageBlockEmbedded>(
-          std::move(page_block->url_), std::move(page_block->html_), std::move(poster_photo), dimensions,
-          get_page_block_caption(std::move(page_block->caption_), documents), is_full_width, allow_scrolling);
-    }
-    case telegram_api::pageBlockEmbedPost::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockEmbedPost>(page_block_ptr);
-      auto it = photos.find(page_block->author_photo_id_);
-      Photo author_photo;
-      if (it != photos.end()) {
-        author_photo = *it->second;
-      }
-      return td::make_unique<WebPageBlockEmbeddedPost>(
-          std::move(page_block->url_), std::move(page_block->author_), std::move(author_photo), page_block->date_,
-          get_web_page_blocks(td, std::move(page_block->blocks_), animations, audios, documents, photos, videos,
-                              voice_notes),
-          get_page_block_caption(std::move(page_block->caption_), documents));
-    }
-    case telegram_api::pageBlockCollage::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockCollage>(page_block_ptr);
-      return td::make_unique<WebPageBlockCollage>(get_web_page_blocks(td, std::move(page_block->items_), animations,
-                                                                      audios, documents, photos, videos, voice_notes),
-                                                  get_page_block_caption(std::move(page_block->caption_), documents));
-    }
-    case telegram_api::pageBlockSlideshow::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockSlideshow>(page_block_ptr);
-      return td::make_unique<WebPageBlockSlideshow>(get_web_page_blocks(td, std::move(page_block->items_), animations,
-                                                                        audios, documents, photos, videos, voice_notes),
-                                                    get_page_block_caption(std::move(page_block->caption_), documents));
-    }
-    case telegram_api::pageBlockChannel::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockChannel>(page_block_ptr);
-      CHECK(page_block->channel_ != nullptr);
-      if (page_block->channel_->get_id() == telegram_api::channel::ID) {
-        auto channel = static_cast<telegram_api::channel *>(page_block->channel_.get());
-        ChannelId channel_id(channel->id_);
-        if (!channel_id.is_valid()) {
-          LOG(ERROR) << "Receive invalid " << channel_id;
-          return nullptr;
-        }
-
-        if (td->chat_manager_->have_channel_force(channel_id, "pageBlockChannel")) {
-          td->chat_manager_->on_get_chat(std::move(page_block->channel_), "pageBlockChannel");
-          LOG(INFO) << "Receive known min " << channel_id;
-          return td::make_unique<WebPageBlockChatLink>(td->chat_manager_->get_channel_title(channel_id),
-                                                       *td->chat_manager_->get_channel_dialog_photo(channel_id),
-                                                       td->chat_manager_->get_channel_first_username(channel_id),
-                                                       td->chat_manager_->get_channel_accent_color_id(channel_id),
-                                                       channel_id);
-        } else {
-          PeerColor peer_color(channel->color_);
-          return td::make_unique<WebPageBlockChatLink>(
-              std::move(channel->title_),
-              get_dialog_photo(td->file_manager_.get(), DialogId(channel_id), channel->access_hash_,
-                               std::move(channel->photo_)),
-              std::move(channel->username_), peer_color.accent_color_id_, channel_id);
-        }
-      } else {
-        LOG(ERROR) << "Receive wrong channel " << to_string(page_block->channel_);
-        return nullptr;
-      }
-    }
-    case telegram_api::pageBlockAudio::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockAudio>(page_block_ptr);
-      auto voice_note_it = voice_notes.find(page_block->audio_id_);
-      if (voice_note_it != voice_notes.end()) {
-        return make_unique<WebPageBlockVoiceNote>(voice_note_it->second,
-                                                  get_page_block_caption(std::move(page_block->caption_), documents));
-      }
-
-      auto it = audios.find(page_block->audio_id_);
-      FileId audio_file_id;
-      if (it != audios.end()) {
-        audio_file_id = it->second;
-      }
-      return make_unique<WebPageBlockAudio>(audio_file_id,
-                                            get_page_block_caption(std::move(page_block->caption_), documents));
-    }
-    case telegram_api::pageBlockTable::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockTable>(page_block_ptr);
-      auto is_bordered = page_block->bordered_;
-      auto is_striped = page_block->striped_;
-      auto cells = transform(std::move(page_block->rows_), [&](tl_object_ptr<telegram_api::pageTableRow> &&row) {
-        return transform(std::move(row->cells_), [&](tl_object_ptr<telegram_api::pageTableCell> &&table_cell) {
-          WebPageBlockTableCell cell;
-          cell.is_header = table_cell->header_;
-          cell.align_center = table_cell->align_center_;
-          if (!cell.align_center) {
-            cell.align_right = table_cell->align_right_;
-            if (!cell.align_right) {
-              cell.align_left = true;
-            }
-          }
-          cell.valign_middle = table_cell->valign_middle_;
-          if (!cell.valign_middle) {
-            cell.valign_bottom = table_cell->valign_bottom_;
-            if (!cell.valign_bottom) {
-              cell.valign_top = true;
-            }
-          }
-          if (table_cell->text_ != nullptr) {
-            cell.text = get_rich_text(std::move(table_cell->text_), documents);
-          }
-          cell.colspan = max(table_cell->colspan_, 1);
-          cell.rowspan = max(table_cell->rowspan_, 1);
-          return cell;
-        });
-      });
-      return td::make_unique<WebPageBlockTable>(get_rich_text(std::move(page_block->title_), documents),
-                                                std::move(cells), is_bordered, is_striped);
-    }
-    case telegram_api::pageBlockDetails::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockDetails>(page_block_ptr);
-      auto is_open = page_block->open_;
-      return td::make_unique<WebPageBlockDetails>(get_rich_text(std::move(page_block->title_), documents),
-                                                  get_web_page_blocks(td, std::move(page_block->blocks_), animations,
-                                                                      audios, documents, photos, videos, voice_notes),
-                                                  is_open);
-    }
-    case telegram_api::pageBlockRelatedArticles::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockRelatedArticles>(page_block_ptr);
-      auto articles = transform(std::move(page_block->articles_),
-                                [&](tl_object_ptr<telegram_api::pageRelatedArticle> &&related_article) {
-                                  RelatedArticle article;
-                                  article.url = std::move(related_article->url_);
-                                  article.web_page_id = WebPageId(related_article->webpage_id_);
-                                  article.title = std::move(related_article->title_);
-                                  article.description = std::move(related_article->description_);
-                                  auto it = photos.find(related_article->photo_id_);
-                                  if (it != photos.end()) {
-                                    article.photo = *it->second;
-                                  }
-                                  article.author = std::move(related_article->author_);
-                                  if (related_article->published_date_ > 0) {
-                                    article.published_date = related_article->published_date_;
-                                  }
-                                  return article;
-                                });
-      return td::make_unique<WebPageBlockRelatedArticles>(get_rich_text(std::move(page_block->title_), documents),
-                                                          std::move(articles));
-    }
-    case telegram_api::pageBlockMap::ID: {
-      auto page_block = move_tl_object_as<telegram_api::pageBlockMap>(page_block_ptr);
-      Location location(td, page_block->geo_);
-      auto zoom = page_block->zoom_;
-      Dimensions dimensions = get_dimensions(page_block->w_, page_block->h_, "pageBlockMap");
-      if (location.empty()) {
-        LOG(ERROR) << "Receive invalid map location";
-        break;
-      }
-      if (zoom <= 0 || zoom > 30) {
-        LOG(ERROR) << "Receive invalid map zoom " << zoom;
-        break;
-      }
-      if (dimensions.width == 0) {
-        LOG(ERROR) << "Receive invalid map dimensions " << page_block->w_ << " " << page_block->h_;
-        break;
-      }
-      return make_unique<WebPageBlockMap>(std::move(location), zoom, dimensions,
-                                          get_page_block_caption(std::move(page_block->caption_), documents));
-    }
-    default:
-      UNREACHABLE();
-  }
-  return nullptr;
-}
-
-}  // namespace
-
-template <class F>
-void WebPageBlock::call_impl(Type type, const WebPageBlock *ptr, F &&f) {
-  switch (type) {
-    case Type::Title:
-      return f(static_cast<const WebPageBlockTitle *>(ptr));
-    case Type::Subtitle:
-      return f(static_cast<const WebPageBlockSubtitle *>(ptr));
-    case Type::AuthorDate:
-      return f(static_cast<const WebPageBlockAuthorDate *>(ptr));
-    case Type::Header:
-      return f(static_cast<const WebPageBlockHeader *>(ptr));
-    case Type::Subheader:
-      return f(static_cast<const WebPageBlockSubheader *>(ptr));
-    case Type::Kicker:
-      return f(static_cast<const WebPageBlockKicker *>(ptr));
-    case Type::Paragraph:
-      return f(static_cast<const WebPageBlockParagraph *>(ptr));
-    case Type::Preformatted:
-      return f(static_cast<const WebPageBlockPreformatted *>(ptr));
-    case Type::Footer:
-      return f(static_cast<const WebPageBlockFooter *>(ptr));
-    case Type::Divider:
-      return f(static_cast<const WebPageBlockDivider *>(ptr));
-    case Type::Anchor:
-      return f(static_cast<const WebPageBlockAnchor *>(ptr));
-    case Type::List:
-      return f(static_cast<const WebPageBlockList *>(ptr));
-    case Type::BlockQuote:
-      return f(static_cast<const WebPageBlockBlockQuote *>(ptr));
-    case Type::PullQuote:
-      return f(static_cast<const WebPageBlockPullQuote *>(ptr));
-    case Type::Animation:
-      return f(static_cast<const WebPageBlockAnimation *>(ptr));
-    case Type::Photo:
-      return f(static_cast<const WebPageBlockPhoto *>(ptr));
-    case Type::Video:
-      return f(static_cast<const WebPageBlockVideo *>(ptr));
-    case Type::Cover:
-      return f(static_cast<const WebPageBlockCover *>(ptr));
-    case Type::Embedded:
-      return f(static_cast<const WebPageBlockEmbedded *>(ptr));
-    case Type::EmbeddedPost:
-      return f(static_cast<const WebPageBlockEmbeddedPost *>(ptr));
-    case Type::Collage:
-      return f(static_cast<const WebPageBlockCollage *>(ptr));
-    case Type::Slideshow:
-      return f(static_cast<const WebPageBlockSlideshow *>(ptr));
-    case Type::ChatLink:
-      return f(static_cast<const WebPageBlockChatLink *>(ptr));
-    case Type::Audio:
-      return f(static_cast<const WebPageBlockAudio *>(ptr));
-    case Type::Table:
-      return f(static_cast<const WebPageBlockTable *>(ptr));
-    case Type::Details:
-      return f(static_cast<const WebPageBlockDetails *>(ptr));
-    case Type::RelatedArticles:
-      return f(static_cast<const WebPageBlockRelatedArticles *>(ptr));
-    case Type::Map:
-      return f(static_cast<const WebPageBlockMap *>(ptr));
-    case Type::VoiceNote:
-      return f(static_cast<const WebPageBlockVoiceNote *>(ptr));
-    default:
-      UNREACHABLE();
-  }
-}
-
-template <class StorerT>
-void WebPageBlock::store(StorerT &storer) const {
-  Type type = get_type();
-  td::store(type, storer);
-  call_impl(type, this, [&](const auto *object) { td::store(*object, storer); });
-}
-
-template <class ParserT>
-unique_ptr<WebPageBlock> WebPageBlock::parse(ParserT &parser) {
-  Type type;
-  td::parse(type, parser);
-  if (static_cast<int32>(type) < 0 || static_cast<int32>(type) >= static_cast<int32>(Type::Size)) {
-    parser.set_error(PSTRING() << "Can't parse unknown BlockType " << static_cast<int32>(type));
-    return nullptr;
-  }
-  unique_ptr<WebPageBlock> res;
-  call_impl(type, nullptr, [&](const auto *ptr) {
-    using ObjT = std::decay_t<decltype(*ptr)>;
-    auto object = make_unique<ObjT>();
-    td::parse(*object, parser);
-    res = std::move(object);
-  });
-  return res;
-}
-
-template <class StorerT>
-void store_web_page_block(const unique_ptr<WebPageBlock> &block, StorerT &storer) {
-  block->store(storer);
-}
-
-template <class ParserT>
-void parse_web_page_block(unique_ptr<WebPageBlock> &block, ParserT &parser) {
-  block = WebPageBlock::parse(parser);
-}
-
-void store(const unique_ptr<WebPageBlock> &block, LogEventStorerCalcLength &storer) {
-  store_web_page_block(block, storer);
-}
-
-void store(const unique_ptr<WebPageBlock> &block, LogEventStorerUnsafe &storer) {
-  store_web_page_block(block, storer);
-}
-
-void parse(unique_ptr<WebPageBlock> &block, LogEventParser &parser) {
-  parse_web_page_block(block, parser);
-}
-
-vector<unique_ptr<WebPageBlock>> get_web_page_blocks(
-    Td *td, vector<tl_object_ptr<telegram_api::PageBlock>> page_block_ptrs,
-    const FlatHashMap<int64, FileId> &animations, const FlatHashMap<int64, FileId> &audios,
-    const FlatHashMap<int64, FileId> &documents, const FlatHashMap<int64, unique_ptr<Photo>> &photos,
-    const FlatHashMap<int64, FileId> &videos, const FlatHashMap<int64, FileId> &voice_notes) {
-  vector<unique_ptr<WebPageBlock>> result;
-  result.reserve(page_block_ptrs.size());
-  for (auto &page_block_ptr : page_block_ptrs) {
-    auto page_block =
-        get_web_page_block(td, std::move(page_block_ptr), animations, audios, documents, photos, videos, voice_notes);
-    if (page_block != nullptr) {
-      result.push_back(std::move(page_block));
-    }
-  }
-  return result;
-}
-
-vector<td_api::object_ptr<td_api::PageBlock>> get_page_blocks_object(
-    const vector<unique_ptr<WebPageBlock>> &page_blocks, Td *td, Slice base_url, Slice real_url) {
-  GetWebPageBlockObjectContext context;
-  context.td_ = td;
-  context.base_url_ = base_url;
-  context.real_url_rhash_ = LinkManager::get_instant_view_link_rhash(real_url);
-  if (!context.real_url_rhash_.empty()) {
-    context.real_url_host_ = get_url_host(LinkManager::get_instant_view_link_url(real_url));
-    if (context.real_url_host_.empty()) {
-      context.real_url_rhash_ = string();
-    }
-  }
-  auto blocks = get_page_blocks_object(page_blocks, &context);
-  if (!context.has_anchor_urls_) {
-    return blocks;
-  }
-
-  context.is_first_pass_ = false;
-  context.anchors_.emplace(Slice(), nullptr);  // back to top
-  return get_page_blocks_object(page_blocks, &context);
-}
-
-bool WebPageBlock::are_allowed_album_block_types(const vector<unique_ptr<WebPageBlock>> &page_blocks) {
-  for (const auto &block : page_blocks) {
-    switch (block->get_type()) {
-      case Type::Title:
-      case Type::AuthorDate:
-      case Type::Collage:
-      case Type::Slideshow:
-        continue;
-      default:
-        return false;
-    }
-  }
-  return true;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebPageBlock.h b/third-party/td/td/td/telegram/WebPageBlock.h
deleted file mode 100644
index 592319df6b..0000000000
--- a/third-party/td/td/td/telegram/WebPageBlock.h
+++ /dev/null
@@ -1,109 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-struct GetWebPageBlockObjectContext;
-
-class Td;
-
-class WebPageBlock {
- protected:
-  enum class Type : int32 {
-    Title,
-    Subtitle,
-    AuthorDate,
-    Header,
-    Subheader,
-    Paragraph,
-    Preformatted,
-    Footer,
-    Divider,
-    Anchor,
-    List,
-    BlockQuote,
-    PullQuote,
-    Animation,
-    Photo,
-    Video,
-    Cover,
-    Embedded,
-    EmbeddedPost,
-    Collage,
-    Slideshow,
-    ChatLink,
-    Audio,
-    Kicker,
-    Table,
-    Details,
-    RelatedArticles,
-    Map,
-    VoiceNote,
-    Size
-  };
-
-  virtual Type get_type() const = 0;
-
-  template <class F>
-  static void call_impl(Type type, const WebPageBlock *ptr, F &&f);
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  static unique_ptr<WebPageBlock> parse(ParserT &parser);
-
-  template <class StorerT>
-  friend void store_web_page_block(const unique_ptr<WebPageBlock> &block, StorerT &storer);
-
-  template <class ParserT>
-  friend void parse_web_page_block(unique_ptr<WebPageBlock> &block, ParserT &parser);
-
-  using Context = GetWebPageBlockObjectContext;
-
- public:
-  WebPageBlock() = default;
-  WebPageBlock(const WebPageBlock &) = delete;
-  WebPageBlock &operator=(const WebPageBlock &) = delete;
-  WebPageBlock(WebPageBlock &&) = delete;
-  WebPageBlock &operator=(WebPageBlock &&) = delete;
-  virtual ~WebPageBlock() = default;
-
-  virtual void append_file_ids(const Td *td, vector<FileId> &file_ids) const = 0;
-
-  virtual td_api::object_ptr<td_api::PageBlock> get_page_block_object(Context *context) const = 0;
-
-  static bool are_allowed_album_block_types(const vector<unique_ptr<WebPageBlock>> &page_blocks);
-};
-
-void store(const unique_ptr<WebPageBlock> &block, LogEventStorerCalcLength &storer);
-
-void store(const unique_ptr<WebPageBlock> &block, LogEventStorerUnsafe &storer);
-
-void parse(unique_ptr<WebPageBlock> &block, LogEventParser &parser);
-
-vector<unique_ptr<WebPageBlock>> get_web_page_blocks(
-    Td *td, vector<tl_object_ptr<telegram_api::PageBlock>> page_block_ptrs,
-    const FlatHashMap<int64, FileId> &animations, const FlatHashMap<int64, FileId> &audios,
-    const FlatHashMap<int64, FileId> &documents, const FlatHashMap<int64, unique_ptr<Photo>> &photos,
-    const FlatHashMap<int64, FileId> &videos, const FlatHashMap<int64, FileId> &voice_notes);
-
-vector<td_api::object_ptr<td_api::PageBlock>> get_page_blocks_object(
-    const vector<unique_ptr<WebPageBlock>> &page_blocks, Td *td, Slice base_url, Slice real_url);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebPageId.h b/third-party/td/td/td/telegram/WebPageId.h
deleted file mode 100644
index 2df51ac46c..0000000000
--- a/third-party/td/td/td/telegram/WebPageId.h
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <type_traits>
-
-namespace td {
-
-class WebPageId {
-  int64 id = 0;
-
- public:
-  WebPageId() = default;
-
-  explicit constexpr WebPageId(int64 web_page_id) : id(web_page_id) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
-  WebPageId(T web_page_id) = delete;
-
-  int64 get() const {
-    return id;
-  }
-
-  bool operator==(const WebPageId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const WebPageId &other) const {
-    return id != other.id;
-  }
-
-  bool is_valid() const {
-    return id != 0;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(id, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(id, parser);
-  }
-};
-
-struct WebPageIdHash {
-  uint32 operator()(WebPageId web_page_id) const {
-    return Hash<int64>()(web_page_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, WebPageId web_page_id) {
-  return string_builder << "link preview " << web_page_id.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebPagesManager.cpp b/third-party/td/td/td/telegram/WebPagesManager.cpp
deleted file mode 100644
index 97a972abfc..0000000000
--- a/third-party/td/td/td/telegram/WebPagesManager.cpp
+++ /dev/null
@@ -1,2552 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/WebPagesManager.h"
-
-#include "td/telegram/AnimationsManager.h"
-#include "td/telegram/AudiosManager.h"
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/ChatManager.h"
-#include "td/telegram/Dependencies.h"
-#include "td/telegram/DialogManager.h"
-#include "td/telegram/Dimensions.h"
-#include "td/telegram/Document.h"
-#include "td/telegram/Document.hpp"
-#include "td/telegram/DocumentsManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/MessagesManager.h"
-#include "td/telegram/Photo.h"
-#include "td/telegram/PhotoFormat.h"
-#include "td/telegram/QuickReplyManager.h"
-#include "td/telegram/StarGift.h"
-#include "td/telegram/StickerFormat.h"
-#include "td/telegram/StickersManager.h"
-#include "td/telegram/StickersManager.hpp"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/StoryId.h"
-#include "td/telegram/StoryManager.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/ThemeSettings.h"
-#include "td/telegram/ThemeSettings.hpp"
-#include "td/telegram/UserManager.h"
-#include "td/telegram/VideoNotesManager.h"
-#include "td/telegram/VideosManager.h"
-#include "td/telegram/VoiceNotesManager.h"
-#include "td/telegram/WebPageBlock.h"
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/utf8.h"
-
-#include <limits>
-
-namespace td {
-
-class GetWebPagePreviewQuery final : public Td::ResultHandler {
-  Promise<td_api::object_ptr<td_api::linkPreview>> promise_;
-  unique_ptr<WebPagesManager::GetWebPagePreviewOptions> options_;
-
- public:
-  explicit GetWebPagePreviewQuery(Promise<td_api::object_ptr<td_api::linkPreview>> &&promise)
-      : promise_(std::move(promise)) {
-  }
-
-  void send(const string &text, vector<tl_object_ptr<telegram_api::MessageEntity>> &&entities,
-            unique_ptr<WebPagesManager::GetWebPagePreviewOptions> &&options) {
-    options_ = std::move(options);
-
-    int32 flags = 0;
-    if (!entities.empty()) {
-      flags |= telegram_api::messages_getWebPagePreview::ENTITIES_MASK;
-    }
-
-    send_query(
-        G()->net_query_creator().create(telegram_api::messages_getWebPagePreview(flags, text, std::move(entities))));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getWebPagePreview>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetWebPagePreviewQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetWebPagePreviewQuery");
-    td_->web_pages_manager_->on_get_web_page_preview(std::move(options_), std::move(ptr->media_), std::move(promise_));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class GetWebPageQuery final : public Td::ResultHandler {
-  Promise<WebPageId> promise_;
-  WebPageId web_page_id_;
-  string url_;
-
- public:
-  explicit GetWebPageQuery(Promise<WebPageId> &&promise) : promise_(std::move(promise)) {
-  }
-
-  void send(WebPageId web_page_id, const string &url, int32 hash) {
-    if (url.empty()) {
-      return promise_.set_value(WebPageId());
-    }
-
-    web_page_id_ = web_page_id;
-    url_ = url;
-    send_query(G()->net_query_creator().create(telegram_api::messages_getWebPage(url, hash)));
-  }
-
-  void on_result(BufferSlice packet) final {
-    auto result_ptr = fetch_result<telegram_api::messages_getWebPage>(packet);
-    if (result_ptr.is_error()) {
-      return on_error(result_ptr.move_as_error());
-    }
-
-    auto ptr = result_ptr.move_as_ok();
-    LOG(INFO) << "Receive result for GetWebPageQuery: " << to_string(ptr);
-    td_->user_manager_->on_get_users(std::move(ptr->users_), "GetWebPageQuery");
-    td_->chat_manager_->on_get_chats(std::move(ptr->chats_), "GetWebPageQuery");
-    auto page = std::move(ptr->webpage_);
-    if (page->get_id() == telegram_api::webPageNotModified::ID) {
-      if (web_page_id_.is_valid()) {
-        auto web_page = move_tl_object_as<telegram_api::webPageNotModified>(page);
-        int32 view_count = web_page->cached_page_views_;
-        td_->web_pages_manager_->on_get_web_page_instant_view_view_count(web_page_id_, view_count);
-        return promise_.set_value(std::move(web_page_id_));
-      } else {
-        LOG(ERROR) << "Receive webPageNotModified for " << url_;
-        return on_error(Status::Error(500, "Receive webPageNotModified"));
-      }
-    }
-    auto web_page_id = td_->web_pages_manager_->on_get_web_page(std::move(page), DialogId());
-    td_->web_pages_manager_->on_get_web_page_by_url(url_, web_page_id, false);
-    promise_.set_value(std::move(web_page_id));
-  }
-
-  void on_error(Status status) final {
-    promise_.set_error(std::move(status));
-  }
-};
-
-class WebPagesManager::WebPageInstantView {
- public:
-  vector<unique_ptr<WebPageBlock>> page_blocks_;
-  string url_;
-  int32 view_count_ = 0;
-  int32 hash_ = 0;
-  bool is_v2_ = false;
-  bool is_rtl_ = false;
-  bool is_empty_ = true;
-  bool is_full_ = false;
-  bool is_loaded_ = false;
-  bool was_loaded_from_database_ = false;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    bool has_url = !url_.empty();
-    bool has_view_count = view_count_ > 0;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_full_);
-    STORE_FLAG(is_loaded_);
-    STORE_FLAG(is_rtl_);
-    STORE_FLAG(is_v2_);
-    STORE_FLAG(has_url);
-    STORE_FLAG(has_view_count);
-    END_STORE_FLAGS();
-
-    store(page_blocks_, storer);
-    store(hash_, storer);
-    if (has_url) {
-      store(url_, storer);
-    }
-    if (has_view_count) {
-      store(view_count_, storer);
-    }
-    CHECK(!is_empty_);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    bool has_url;
-    bool has_view_count;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_full_);
-    PARSE_FLAG(is_loaded_);
-    PARSE_FLAG(is_rtl_);
-    PARSE_FLAG(is_v2_);
-    PARSE_FLAG(has_url);
-    PARSE_FLAG(has_view_count);
-    END_PARSE_FLAGS();
-
-    parse(page_blocks_, parser);
-    parse(hash_, parser);
-    if (has_url) {
-      parse(url_, parser);
-    }
-    if (has_view_count) {
-      parse(view_count_, parser);
-    }
-    is_empty_ = false;
-  }
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder,
-                                   const WebPagesManager::WebPageInstantView &instant_view) {
-    return string_builder << "InstantView(URL = " << instant_view.url_
-                          << ", size = " << instant_view.page_blocks_.size()
-                          << ", view_count = " << instant_view.view_count_ << ", hash = " << instant_view.hash_
-                          << ", is_empty = " << instant_view.is_empty_ << ", is_v2 = " << instant_view.is_v2_
-                          << ", is_rtl = " << instant_view.is_rtl_ << ", is_full = " << instant_view.is_full_
-                          << ", is_loaded = " << instant_view.is_loaded_
-                          << ", was_loaded_from_database = " << instant_view.was_loaded_from_database_ << ")";
-  }
-};
-
-class WebPagesManager::WebPage {
- public:
-  string url_;
-  string display_url_;
-  string type_;
-  string site_name_;
-  string title_;
-  string description_;
-  Photo photo_;
-  string embed_url_;
-  string embed_type_;
-  Dimensions embed_dimensions_;
-  int32 duration_ = 0;
-  string author_;
-  bool has_large_media_ = false;
-  bool video_cover_photo_ = false;
-  mutable bool is_album_ = false;
-  mutable bool is_album_checked_ = false;
-  Document document_;
-  vector<Document> documents_;
-  ThemeSettings theme_settings_;
-  vector<StoryFullId> story_full_ids_;
-  vector<FileId> sticker_ids_;
-  vector<StarGift> star_gifts_;
-  WebPageInstantView instant_view_;
-
-  FileSourceId file_source_id_;
-
-  mutable uint64 log_event_id_ = 0;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using ::td::store;
-    bool has_type = !type_.empty();
-    bool has_site_name = !site_name_.empty();
-    bool has_title = !title_.empty();
-    bool has_description = !description_.empty();
-    bool has_photo = !photo_.is_empty();
-    bool has_embed = !embed_url_.empty();
-    bool has_embed_dimensions = has_embed && embed_dimensions_ != Dimensions();
-    bool has_duration = duration_ > 0;
-    bool has_author = !author_.empty();
-    bool has_document = !document_.empty();
-    bool has_instant_view = !instant_view_.is_empty_;
-    bool is_instant_view_v2 = instant_view_.is_v2_;
-    bool has_no_hash = true;
-    bool has_documents = !documents_.empty();
-    bool has_story_full_ids = !story_full_ids_.empty();
-    bool has_sticker_ids = !sticker_ids_.empty();
-    bool has_theme_settings = !theme_settings_.is_empty();
-    bool has_star_gifts = !star_gifts_.empty();
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_type);
-    STORE_FLAG(has_site_name);
-    STORE_FLAG(has_title);
-    STORE_FLAG(has_description);
-    STORE_FLAG(has_photo);
-    STORE_FLAG(has_embed);
-    STORE_FLAG(has_embed_dimensions);
-    STORE_FLAG(has_duration);
-    STORE_FLAG(has_author);
-    STORE_FLAG(has_document);
-    STORE_FLAG(has_instant_view);
-    STORE_FLAG(has_no_hash);
-    STORE_FLAG(is_instant_view_v2);
-    STORE_FLAG(has_documents);
-    STORE_FLAG(has_story_full_ids);
-    STORE_FLAG(has_large_media_);
-    STORE_FLAG(has_sticker_ids);
-    STORE_FLAG(has_theme_settings);
-    STORE_FLAG(has_star_gifts);
-    STORE_FLAG(video_cover_photo_);
-    END_STORE_FLAGS();
-
-    store(url_, storer);
-    store(display_url_, storer);
-    if (has_type) {
-      store(type_, storer);
-    }
-    if (has_site_name) {
-      store(site_name_, storer);
-    }
-    if (has_title) {
-      store(title_, storer);
-    }
-    if (has_description) {
-      store(description_, storer);
-    }
-    if (has_photo) {
-      store(photo_, storer);
-    }
-    if (has_embed) {
-      store(embed_url_, storer);
-      store(embed_type_, storer);
-    }
-    if (has_embed_dimensions) {
-      store(embed_dimensions_, storer);
-    }
-    if (has_duration) {
-      store(duration_, storer);
-    }
-    if (has_author) {
-      store(author_, storer);
-    }
-    if (has_document) {
-      store(document_, storer);
-    }
-    if (has_documents) {
-      store(documents_, storer);
-    }
-    if (has_story_full_ids) {
-      store(story_full_ids_, storer);
-    }
-    if (has_sticker_ids) {
-      Td *td = storer.context()->td().get_actor_unsafe();
-      store(static_cast<uint32>(sticker_ids_.size()), storer);
-      for (auto &sticker_id : sticker_ids_) {
-        td->stickers_manager_->store_sticker(sticker_id, false, storer, "WebPage");
-      }
-    }
-    if (has_theme_settings) {
-      store(theme_settings_, storer);
-    }
-    if (has_star_gifts) {
-      store(star_gifts_, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using ::td::parse;
-    bool has_type;
-    bool has_site_name;
-    bool has_title;
-    bool has_description;
-    bool has_photo;
-    bool has_embed;
-    bool has_embed_dimensions;
-    bool has_duration;
-    bool has_author;
-    bool has_document;
-    bool has_instant_view;
-    bool is_instant_view_v2;
-    bool has_no_hash;
-    bool has_documents;
-    bool has_story_full_ids;
-    bool has_sticker_ids;
-    bool has_theme_settings;
-    bool has_star_gifts;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_type);
-    PARSE_FLAG(has_site_name);
-    PARSE_FLAG(has_title);
-    PARSE_FLAG(has_description);
-    PARSE_FLAG(has_photo);
-    PARSE_FLAG(has_embed);
-    PARSE_FLAG(has_embed_dimensions);
-    PARSE_FLAG(has_duration);
-    PARSE_FLAG(has_author);
-    PARSE_FLAG(has_document);
-    PARSE_FLAG(has_instant_view);
-    PARSE_FLAG(has_no_hash);
-    PARSE_FLAG(is_instant_view_v2);
-    PARSE_FLAG(has_documents);
-    PARSE_FLAG(has_story_full_ids);
-    PARSE_FLAG(has_large_media_);
-    PARSE_FLAG(has_sticker_ids);
-    PARSE_FLAG(has_theme_settings);
-    PARSE_FLAG(has_star_gifts);
-    PARSE_FLAG(video_cover_photo_);
-    END_PARSE_FLAGS();
-
-    parse(url_, parser);
-    parse(display_url_, parser);
-    if (!has_no_hash) {
-      int32 hash;
-      parse(hash, parser);
-    }
-    if (has_type) {
-      parse(type_, parser);
-    }
-    if (has_site_name) {
-      parse(site_name_, parser);
-    }
-    if (has_title) {
-      parse(title_, parser);
-    }
-    if (has_description) {
-      parse(description_, parser);
-    }
-    if (has_photo) {
-      parse(photo_, parser);
-    }
-    if (has_embed) {
-      parse(embed_url_, parser);
-      parse(embed_type_, parser);
-    }
-    if (has_embed_dimensions) {
-      parse(embed_dimensions_, parser);
-    }
-    if (has_duration) {
-      parse(duration_, parser);
-    }
-    if (has_author) {
-      parse(author_, parser);
-    }
-    if (has_document) {
-      parse(document_, parser);
-    }
-    if (has_documents) {
-      parse(documents_, parser);
-    }
-    if (has_story_full_ids) {
-      parse(story_full_ids_, parser);
-      td::remove_if(story_full_ids_, [](StoryFullId story_full_id) { return !story_full_id.is_server(); });
-    }
-    if (has_sticker_ids) {
-      Td *td = parser.context()->td().get_actor_unsafe();
-      uint32 sticker_count;
-      parse(sticker_count, parser);
-      for (size_t i = 0; i < sticker_count; i++) {
-        auto sticker_id = td->stickers_manager_->parse_sticker(false, parser);
-        if (sticker_id.is_valid()) {
-          sticker_ids_.push_back(sticker_id);
-        }
-      }
-    }
-    if (has_theme_settings) {
-      parse(theme_settings_, parser);
-    }
-    if (has_star_gifts) {
-      parse(star_gifts_, parser);
-    }
-
-    if (has_instant_view) {
-      instant_view_.is_empty_ = false;
-    }
-    if (is_instant_view_v2) {
-      instant_view_.is_v2_ = true;
-    }
-  }
-
-  friend bool operator==(const WebPage &lhs, const WebPage &rhs) {
-    return lhs.url_ == rhs.url_ && lhs.display_url_ == rhs.display_url_ && lhs.type_ == rhs.type_ &&
-           lhs.site_name_ == rhs.site_name_ && lhs.title_ == rhs.title_ && lhs.description_ == rhs.description_ &&
-           lhs.photo_ == rhs.photo_ && lhs.type_ == rhs.type_ && lhs.embed_url_ == rhs.embed_url_ &&
-           lhs.embed_type_ == rhs.embed_type_ && lhs.embed_dimensions_ == rhs.embed_dimensions_ &&
-           lhs.duration_ == rhs.duration_ && lhs.author_ == rhs.author_ &&
-           lhs.has_large_media_ == rhs.has_large_media_ && lhs.video_cover_photo_ == rhs.video_cover_photo_ &&
-           lhs.document_ == rhs.document_ && lhs.documents_ == rhs.documents_ &&
-           lhs.theme_settings_ == rhs.theme_settings_ && lhs.story_full_ids_ == rhs.story_full_ids_ &&
-           lhs.sticker_ids_ == rhs.sticker_ids_ && lhs.star_gifts_ == rhs.star_gifts_ &&
-           lhs.instant_view_.is_empty_ == rhs.instant_view_.is_empty_ &&
-           lhs.instant_view_.is_v2_ == rhs.instant_view_.is_v2_;
-  }
-};
-
-WebPagesManager::WebPagesManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
-  pending_web_pages_timeout_.set_callback(on_pending_web_page_timeout_callback);
-  pending_web_pages_timeout_.set_callback_data(static_cast<void *>(this));
-}
-
-void WebPagesManager::tear_down() {
-  parent_.reset();
-
-  LOG(DEBUG) << "Have " << web_pages_.calc_size() << " web pages to free";
-}
-
-WebPagesManager::~WebPagesManager() {
-  Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), web_pages_, web_page_messages_,
-                                              web_page_quick_reply_messages_, url_to_web_page_id_,
-                                              url_to_file_source_id_);
-}
-
-string WebPagesManager::get_web_page_url(const tl_object_ptr<telegram_api::WebPage> &web_page_ptr) {
-  CHECK(web_page_ptr != nullptr);
-  switch (web_page_ptr->get_id()) {
-    case telegram_api::webPageEmpty::ID:
-      return static_cast<const telegram_api::webPageEmpty *>(web_page_ptr.get())->url_;
-    case telegram_api::webPagePending::ID:
-      return static_cast<const telegram_api::webPagePending *>(web_page_ptr.get())->url_;
-    case telegram_api::webPage::ID:
-      return static_cast<const telegram_api::webPage *>(web_page_ptr.get())->url_;
-    case telegram_api::webPageNotModified::ID:
-      LOG(ERROR) << "Receive webPageNotModified";
-      return string();
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-WebPageId WebPagesManager::on_get_web_page(tl_object_ptr<telegram_api::WebPage> &&web_page_ptr,
-                                           DialogId owner_dialog_id) {
-  CHECK(web_page_ptr != nullptr);
-  if (td_->auth_manager_->is_bot()) {
-    return WebPageId();
-  }
-  LOG(DEBUG) << "Receive " << to_string(web_page_ptr);
-  switch (web_page_ptr->get_id()) {
-    case telegram_api::webPageEmpty::ID: {
-      auto web_page = move_tl_object_as<telegram_api::webPageEmpty>(web_page_ptr);
-      WebPageId web_page_id(web_page->id_);
-      if (!web_page_id.is_valid()) {
-        LOG_IF(ERROR, web_page_id != WebPageId()) << "Receive invalid " << web_page_id;
-        return WebPageId();
-      }
-
-      LOG(INFO) << "Receive empty " << web_page_id;
-      const WebPage *web_page_to_delete = get_web_page(web_page_id);
-      if (web_page_to_delete != nullptr) {
-        if (web_page_to_delete->log_event_id_ != 0) {
-          LOG(INFO) << "Erase " << web_page_id << " from binlog";
-          binlog_erase(G()->td_db()->get_binlog(), web_page_to_delete->log_event_id_);
-          web_page_to_delete->log_event_id_ = 0;
-        }
-        if (web_page_to_delete->file_source_id_.is_valid()) {
-          td_->file_manager_->change_files_source(web_page_to_delete->file_source_id_,
-                                                  get_web_page_file_ids(web_page_to_delete), vector<FileId>(),
-                                                  "on_get_web_page");
-        }
-        web_pages_.erase(web_page_id);
-      }
-
-      on_web_page_changed(web_page_id, false);
-      if (G()->use_message_database()) {
-        LOG(INFO) << "Delete " << web_page_id << " from database";
-        G()->td_db()->get_sqlite_pmc()->erase(get_web_page_database_key(web_page_id), Auto());
-        G()->td_db()->get_sqlite_pmc()->erase(get_web_page_instant_view_database_key(web_page_id), Auto());
-      }
-
-      return WebPageId();
-    }
-    case telegram_api::webPagePending::ID: {
-      auto web_page = move_tl_object_as<telegram_api::webPagePending>(web_page_ptr);
-      WebPageId web_page_id(web_page->id_);
-      if (!web_page_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << web_page_id;
-        return WebPageId();
-      }
-
-      auto web_page_date = web_page->date_;
-      LOG(INFO) << "Receive pending " << web_page_id << ", force_get_date = " << web_page_date
-                << ", now = " << G()->server_time();
-
-      pending_web_pages_timeout_.add_timeout_in(web_page_id.get(), max(web_page_date - G()->server_time(), 1.0));
-      return web_page_id;
-    }
-    case telegram_api::webPage::ID: {
-      auto web_page = move_tl_object_as<telegram_api::webPage>(web_page_ptr);
-      WebPageId web_page_id(web_page->id_);
-      if (!web_page_id.is_valid()) {
-        LOG(ERROR) << "Receive invalid " << web_page_id;
-        return WebPageId();
-      }
-
-      LOG(INFO) << "Receive " << web_page_id;
-      auto page = make_unique<WebPage>();
-
-      page->url_ = std::move(web_page->url_);
-      page->display_url_ = std::move(web_page->display_url_);
-      page->type_ = std::move(web_page->type_);
-      page->site_name_ = std::move(web_page->site_name_);
-      page->title_ = std::move(web_page->title_);
-      page->description_ = std::move(web_page->description_);
-      page->photo_ = get_photo(td_, std::move(web_page->photo_), owner_dialog_id);
-      page->embed_url_ = std::move(web_page->embed_url_);
-      page->embed_type_ = std::move(web_page->embed_type_);
-      page->embed_dimensions_ = get_dimensions(web_page->embed_width_, web_page->embed_height_, "webPage");
-      page->duration_ = web_page->duration_;
-      if (page->duration_ < 0) {
-        LOG(ERROR) << "Receive wrong web page duration " << page->duration_;
-        page->duration_ = 0;
-      }
-      page->author_ = std::move(web_page->author_);
-      page->has_large_media_ = web_page->has_large_media_;
-      page->video_cover_photo_ = web_page->video_cover_photo_;
-      if (web_page->document_ != nullptr) {
-        int32 document_id = web_page->document_->get_id();
-        if (document_id == telegram_api::document::ID) {
-          auto parsed_document = td_->documents_manager_->on_get_document(
-              move_tl_object_as<telegram_api::document>(web_page->document_), owner_dialog_id, false);
-          page->document_ = std::move(parsed_document);
-        }
-      }
-      for (auto &attribute_ptr : web_page->attributes_) {
-        CHECK(attribute_ptr != nullptr);
-        switch (attribute_ptr->get_id()) {
-          case telegram_api::webPageAttributeTheme::ID: {
-            auto attribute = telegram_api::move_object_as<telegram_api::webPageAttributeTheme>(attribute_ptr);
-            for (auto &document : attribute->documents_) {
-              int32 document_id = document->get_id();
-              if (document_id == telegram_api::document::ID) {
-                auto parsed_document = td_->documents_manager_->on_get_document(
-                    move_tl_object_as<telegram_api::document>(document), owner_dialog_id, false);
-                if (!parsed_document.empty()) {
-                  page->documents_.push_back(std::move(parsed_document));
-                }
-              }
-            }
-            page->theme_settings_ = ThemeSettings(td_, std::move(attribute->settings_));
-            if (page->type_ != "telegram_theme") {
-              LOG(ERROR) << "Receive webPageAttributeTheme for " << page->type_;
-            }
-            break;
-          }
-          case telegram_api::webPageAttributeStory::ID: {
-            auto attribute = telegram_api::move_object_as<telegram_api::webPageAttributeStory>(attribute_ptr);
-            auto dialog_id = DialogId(attribute->peer_);
-            auto story_id = StoryId(attribute->id_);
-            auto story_full_id = StoryFullId(dialog_id, story_id);
-            if (!story_full_id.is_server()) {
-              LOG(ERROR) << "Receive " << to_string(attribute);
-              break;
-            }
-            if (attribute->story_ != nullptr) {
-              auto actual_story_id = td_->story_manager_->on_get_story(dialog_id, std::move(attribute->story_));
-              if (story_id != actual_story_id) {
-                LOG(ERROR) << "Receive " << actual_story_id << " instead of " << story_id;
-              }
-            }
-            td_->dialog_manager_->force_create_dialog(dialog_id, "webPageAttributeStory");
-            page->story_full_ids_.push_back(story_full_id);
-            if (page->type_ != "telegram_story") {
-              LOG(ERROR) << "Receive webPageAttributeStory for " << page->type_;
-            }
-            break;
-          }
-          case telegram_api::webPageAttributeStickerSet::ID: {
-            auto attribute = telegram_api::move_object_as<telegram_api::webPageAttributeStickerSet>(attribute_ptr);
-            if (!page->sticker_ids_.empty()) {
-              LOG(ERROR) << "Receive duplicate webPageAttributeStickerSet";
-            }
-            for (auto &sticker : attribute->stickers_) {
-              auto sticker_id = td_->stickers_manager_
-                                    ->on_get_sticker_document(std::move(sticker), StickerFormat::Unknown,
-                                                              "webPageAttributeStickerSet")
-                                    .second;
-              if (sticker_id.is_valid() && page->sticker_ids_.size() < 4) {
-                page->sticker_ids_.push_back(sticker_id);
-              }
-            }
-            if (page->type_ != "telegram_stickerset") {
-              LOG(ERROR) << "Receive webPageAttributeStickerSet for " << page->type_;
-            }
-            break;
-          }
-          case telegram_api::webPageAttributeUniqueStarGift::ID: {
-            auto attribute = telegram_api::move_object_as<telegram_api::webPageAttributeUniqueStarGift>(attribute_ptr);
-            StarGift star_gift(td_, std::move(attribute->gift_), true);
-            if (!star_gift.is_valid() || !star_gift.is_unique()) {
-              LOG(ERROR) << "Receive invalid upgraded gift";
-              break;
-            }
-            page->star_gifts_.push_back(std::move(star_gift));
-            if (page->type_ != "telegram_nft") {
-              LOG(ERROR) << "Receive webPageAttributeUniqueStarGift for " << page->type_;
-            }
-            break;
-          }
-          default:
-            UNREACHABLE();
-        }
-      }
-      if (web_page->cached_page_ != nullptr) {
-        on_get_web_page_instant_view(page.get(), std::move(web_page->cached_page_), web_page->hash_, owner_dialog_id);
-      }
-
-      update_web_page(std::move(page), web_page_id, false, false);
-      return web_page_id;
-    }
-    case telegram_api::webPageNotModified::ID:
-      LOG(ERROR) << "Receive webPageNotModified";
-      return WebPageId();
-    default:
-      UNREACHABLE();
-      return WebPageId();
-  }
-}
-
-void WebPagesManager::update_web_page(unique_ptr<WebPage> web_page, WebPageId web_page_id, bool from_binlog,
-                                      bool from_database) {
-  LOG(INFO) << "Update " << web_page_id << (from_database ? " from database" : (from_binlog ? " from binlog" : ""));
-  CHECK(web_page != nullptr);
-
-  if (from_binlog || from_database) {
-    if (!web_page->story_full_ids_.empty()) {
-      Dependencies dependencies;
-      for (auto story_full_id : web_page->story_full_ids_) {
-        dependencies.add(story_full_id);
-      }
-      if (!dependencies.resolve_force(td_, "update_web_page 1")) {
-        web_page->story_full_ids_ = {};
-      }
-    }
-    if (!web_page->star_gifts_.empty()) {
-      Dependencies dependencies;
-      for (const auto &star_gift : web_page->star_gifts_) {
-        star_gift.add_dependencies(dependencies);
-      }
-      if (!dependencies.resolve_force(td_, "update_web_page 2")) {
-        web_page->star_gifts_ = {};
-      }
-    }
-  }
-
-  auto &page = web_pages_[web_page_id];
-  auto old_file_ids = get_web_page_file_ids(page.get());
-  WebPageInstantView old_instant_view;
-  bool is_changed = true;
-  if (page != nullptr) {
-    if (*page == *web_page) {
-      is_changed = false;
-    }
-
-    if (page->story_full_ids_ != web_page->story_full_ids_) {
-      for (auto story_full_id : page->story_full_ids_) {
-        auto it = story_web_pages_.find(story_full_id);
-        if (it != story_web_pages_.end()) {
-          it->second.erase(web_page_id);
-          if (it->second.empty()) {
-            story_web_pages_.erase(it);
-          }
-        }
-      }
-      for (auto story_full_id : web_page->story_full_ids_) {
-        story_web_pages_[story_full_id].insert(web_page_id);
-      }
-    }
-
-    old_instant_view = std::move(page->instant_view_);
-    web_page->log_event_id_ = page->log_event_id_;
-  } else {
-    auto it = url_to_file_source_id_.find(web_page->url_);
-    if (it != url_to_file_source_id_.end()) {
-      VLOG(file_references) << "Move " << it->second << " inside of " << web_page_id;
-      web_page->file_source_id_ = it->second;
-      url_to_file_source_id_.erase(it);
-    }
-  }
-  page = std::move(web_page);
-
-  // must be called before any other action for correct behavior of get_url_file_source_id
-  if (!page->url_.empty()) {
-    on_get_web_page_by_url(page->url_, web_page_id, from_database);
-  }
-
-  update_web_page_instant_view(web_page_id, page->instant_view_, std::move(old_instant_view));
-
-  auto new_file_ids = get_web_page_file_ids(page.get());
-  if (old_file_ids != new_file_ids) {
-    td_->file_manager_->change_files_source(get_web_page_file_source_id(page.get()), old_file_ids, new_file_ids,
-                                            "update_web_page");
-  }
-
-  if (is_changed && !from_database) {
-    on_web_page_changed(web_page_id, true);
-
-    save_web_page(page.get(), web_page_id, from_binlog);
-  }
-}
-
-void WebPagesManager::update_web_page_instant_view(WebPageId web_page_id, WebPageInstantView &new_instant_view,
-                                                   WebPageInstantView &&old_instant_view) {
-  LOG(INFO) << "Merge new " << new_instant_view << " and old " << old_instant_view;
-
-  bool new_from_database = new_instant_view.was_loaded_from_database_;
-  bool old_from_database = old_instant_view.was_loaded_from_database_;
-
-  if (new_instant_view.is_empty_ && !new_from_database) {
-    // new_instant_view is from server and is empty, need to delete the instant view
-    if (G()->use_message_database() && (!old_instant_view.is_empty_ || !old_from_database)) {
-      // we have no instant view and probably want it to be deleted from database
-      LOG(INFO) << "Erase instant view of " << web_page_id << " from database";
-      new_instant_view.was_loaded_from_database_ = true;
-      G()->td_db()->get_sqlite_pmc()->erase(get_web_page_instant_view_database_key(web_page_id), Auto());
-    }
-    return;
-  }
-
-  if (need_use_old_instant_view(new_instant_view, old_instant_view)) {
-    new_instant_view = std::move(old_instant_view);
-  }
-
-  if (G()->use_message_database() && !new_instant_view.is_empty_ && new_instant_view.is_loaded_) {
-    // we have instant view and probably want it to be saved
-    if (!new_from_database && !old_from_database) {
-      // if it wasn't loaded from the database, load it first
-      return load_web_page_instant_view(web_page_id, true, Auto());
-    }
-
-    if (!new_instant_view.was_loaded_from_database_) {
-      LOG(INFO) << "Save instant view of " << web_page_id << " to database";
-      /*
-      if (web_page_id.get() == 0) {
-        auto blocks = std::move(new_instant_view.page_blocks_);
-        new_instant_view.page_blocks_.clear();
-        for (size_t i = 0; i < blocks.size(); i++) {
-          LOG(ERROR) << to_string(blocks[i]->get_page_block_object());
-          new_instant_view.page_blocks_.push_back(std::move(blocks[i]));
-          log_event_store(new_instant_view);
-        }
-        UNREACHABLE();
-      }
-      */
-      new_instant_view.was_loaded_from_database_ = true;
-      G()->td_db()->get_sqlite_pmc()->set(get_web_page_instant_view_database_key(web_page_id),
-                                          log_event_store(new_instant_view).as_slice().str(), Auto());
-    }
-  }
-}
-
-bool WebPagesManager::need_use_old_instant_view(const WebPageInstantView &new_instant_view,
-                                                const WebPageInstantView &old_instant_view) {
-  if (old_instant_view.is_empty_ || !old_instant_view.is_loaded_) {
-    return false;
-  }
-  if (new_instant_view.is_empty_ || !new_instant_view.is_loaded_) {
-    return true;
-  }
-  if (new_instant_view.is_full_ != old_instant_view.is_full_) {
-    return old_instant_view.is_full_;
-  }
-
-  if (new_instant_view.hash_ == old_instant_view.hash_) {
-    // the same instant view
-    return !new_instant_view.is_full_ || old_instant_view.is_full_;
-  }
-
-  // data in database is always outdated
-  return new_instant_view.was_loaded_from_database_;
-}
-
-void WebPagesManager::on_get_web_page_instant_view_view_count(WebPageId web_page_id, int32 view_count) {
-  if (get_web_page_instant_view(web_page_id) == nullptr) {
-    return;
-  }
-
-  auto *instant_view = &web_pages_[web_page_id]->instant_view_;
-  CHECK(!instant_view->is_empty_);
-  if (instant_view->view_count_ >= view_count) {
-    return;
-  }
-  instant_view->view_count_ = view_count;
-  if (G()->use_message_database()) {
-    LOG(INFO) << "Save instant view of " << web_page_id << " to database after updating view count to " << view_count;
-    G()->td_db()->get_sqlite_pmc()->set(get_web_page_instant_view_database_key(web_page_id),
-                                        log_event_store(*instant_view).as_slice().str(), Auto());
-  }
-}
-
-void WebPagesManager::on_get_web_page_by_url(const string &url, WebPageId web_page_id, bool from_database) {
-  if (url.empty()) {
-    return;
-  }
-  auto emplace_result = url_to_web_page_id_.emplace(url, std::make_pair(web_page_id, from_database));
-  auto &it = emplace_result.first;
-  bool is_inserted = emplace_result.second;
-  if (from_database && !it->second.second) {
-    // database data can't replace non-database data
-    CHECK(!is_inserted);
-    return;
-  }
-  auto &cached_web_page_id = it->second.first;
-  if (!from_database && G()->use_message_database() && (cached_web_page_id != web_page_id || is_inserted)) {
-    if (web_page_id.is_valid()) {
-      G()->td_db()->get_sqlite_pmc()->set(get_web_page_url_database_key(url), to_string(web_page_id.get()), Auto());
-    } else {
-      G()->td_db()->get_sqlite_pmc()->erase(get_web_page_url_database_key(url), Auto());
-    }
-  }
-
-  if (!is_inserted) {
-    if (cached_web_page_id.is_valid() && !it->second.second && web_page_id.is_valid() &&
-        web_page_id != cached_web_page_id) {
-      LOG(ERROR) << "URL \"" << url << "\" preview is changed from " << cached_web_page_id << " to " << web_page_id;
-    }
-    cached_web_page_id = web_page_id;
-    it->second.second = from_database;
-  }
-}
-
-void WebPagesManager::register_web_page(WebPageId web_page_id, MessageFullId message_full_id, const char *source) {
-  if (!web_page_id.is_valid()) {
-    return;
-  }
-
-  LOG(INFO) << "Register " << web_page_id << " from " << message_full_id << " from " << source;
-  bool is_inserted = web_page_messages_[web_page_id].insert(message_full_id).second;
-  LOG_CHECK(is_inserted) << source << " " << web_page_id << " " << message_full_id;
-
-  if (!td_->auth_manager_->is_bot() && !have_web_page_force(web_page_id)) {
-    LOG(INFO) << "Waiting for " << web_page_id << " needed in " << message_full_id;
-    pending_web_pages_timeout_.add_timeout_in(web_page_id.get(), 1.0);
-  }
-}
-
-void WebPagesManager::unregister_web_page(WebPageId web_page_id, MessageFullId message_full_id, const char *source) {
-  if (!web_page_id.is_valid()) {
-    return;
-  }
-
-  LOG(INFO) << "Unregister " << web_page_id << " from " << message_full_id << " from " << source;
-  auto &message_ids = web_page_messages_[web_page_id];
-  auto is_deleted = message_ids.erase(message_full_id) > 0;
-  LOG_CHECK(is_deleted) << source << " " << web_page_id << " " << message_full_id;
-
-  if (message_ids.empty()) {
-    web_page_messages_.erase(web_page_id);
-  }
-}
-
-void WebPagesManager::register_quick_reply_web_page(WebPageId web_page_id, QuickReplyMessageFullId message_full_id,
-                                                    const char *source) {
-  if (!web_page_id.is_valid()) {
-    return;
-  }
-
-  LOG(INFO) << "Register " << web_page_id << " from " << message_full_id << " from " << source;
-  bool is_inserted = web_page_quick_reply_messages_[web_page_id].insert(message_full_id).second;
-  LOG_CHECK(is_inserted) << source << " " << web_page_id << " " << message_full_id;
-
-  if (!have_web_page_force(web_page_id)) {
-    LOG(INFO) << "Waiting for " << web_page_id << " needed in " << message_full_id;
-    pending_web_pages_timeout_.add_timeout_in(web_page_id.get(), 1.0);
-  }
-}
-
-void WebPagesManager::unregister_quick_reply_web_page(WebPageId web_page_id, QuickReplyMessageFullId message_full_id,
-                                                      const char *source) {
-  if (!web_page_id.is_valid()) {
-    return;
-  }
-
-  LOG(INFO) << "Unregister " << web_page_id << " from " << message_full_id << " from " << source;
-  auto &message_ids = web_page_quick_reply_messages_[web_page_id];
-  auto is_deleted = message_ids.erase(message_full_id) > 0;
-  LOG_CHECK(is_deleted) << source << " " << web_page_id << " " << message_full_id;
-
-  if (message_ids.empty()) {
-    web_page_quick_reply_messages_.erase(web_page_id);
-  }
-}
-
-void WebPagesManager::on_get_web_page_preview(unique_ptr<GetWebPagePreviewOptions> &&options,
-                                              tl_object_ptr<telegram_api::MessageMedia> &&message_media_ptr,
-                                              Promise<td_api::object_ptr<td_api::linkPreview>> &&promise) {
-  CHECK(message_media_ptr != nullptr);
-  int32 constructor_id = message_media_ptr->get_id();
-  if (constructor_id != telegram_api::messageMediaWebPage::ID) {
-    if (constructor_id == telegram_api::messageMediaEmpty::ID) {
-      on_get_web_page_preview_success(std::move(options), WebPageId(), std::move(promise));
-      return;
-    }
-
-    LOG(ERROR) << "Receive " << to_string(message_media_ptr) << " instead of web page";
-    return promise.set_error(Status::Error(500, "Receive not web page in GetWebPagePreview"));
-  }
-
-  auto message_media_web_page = move_tl_object_as<telegram_api::messageMediaWebPage>(message_media_ptr);
-  CHECK(message_media_web_page->webpage_ != nullptr);
-
-  auto web_page_id = on_get_web_page(std::move(message_media_web_page->webpage_), DialogId());
-  if (web_page_id.is_valid() && !have_web_page(web_page_id)) {
-    pending_get_web_pages_[web_page_id].emplace_back(std::move(options), std::move(promise));
-    return;
-  }
-
-  on_get_web_page_preview_success(std::move(options), web_page_id, std::move(promise));
-}
-
-void WebPagesManager::on_get_web_page_preview_success(unique_ptr<GetWebPagePreviewOptions> &&options,
-                                                      WebPageId web_page_id,
-                                                      Promise<td_api::object_ptr<td_api::linkPreview>> &&promise) {
-  CHECK(web_page_id == WebPageId() || have_web_page(web_page_id));
-  CHECK(options != nullptr);
-  CHECK(options->link_preview_options_ != nullptr);
-
-  if (web_page_id.is_valid() && !options->first_url_.empty()) {
-    on_get_web_page_by_url(options->first_url_, web_page_id, true);
-  }
-
-  promise.set_value(get_link_preview_object(web_page_id, options->link_preview_options_->force_small_media_,
-                                            options->link_preview_options_->force_large_media_,
-                                            options->skip_confirmation_,
-                                            options->link_preview_options_->show_above_text_));
-}
-
-void WebPagesManager::get_web_page_preview(td_api::object_ptr<td_api::formattedText> &&text,
-                                           td_api::object_ptr<td_api::linkPreviewOptions> &&link_preview_options,
-                                           Promise<td_api::object_ptr<td_api::linkPreview>> &&promise) {
-  TRY_RESULT_PROMISE(
-      promise, formatted_text,
-      get_formatted_text(td_, DialogId(), std::move(text), td_->auth_manager_->is_bot(), true, true, true));
-
-  if (link_preview_options == nullptr) {
-    link_preview_options = td_api::make_object<td_api::linkPreviewOptions>();
-  }
-  if (link_preview_options->is_disabled_) {
-    return promise.set_value(nullptr);
-  }
-  auto url = link_preview_options->url_.empty() ? get_first_url(formatted_text).str() : link_preview_options->url_;
-  if (url.empty()) {
-    return promise.set_value(nullptr);
-  }
-
-  LOG(INFO) << "Trying to get web page preview for \"" << url << '"';
-
-  auto web_page_id = get_web_page_by_url(url);
-  bool skip_confirmation = is_visible_url(formatted_text, url);
-  if (web_page_id.is_valid()) {
-    return promise.set_value(get_link_preview_object(web_page_id, link_preview_options->force_small_media_,
-                                                     link_preview_options->force_large_media_, skip_confirmation,
-                                                     link_preview_options->show_above_text_));
-  }
-  if (!link_preview_options->url_.empty()) {
-    formatted_text.text = link_preview_options->url_, formatted_text.entities.clear();
-  }
-  auto options = make_unique<GetWebPagePreviewOptions>();
-  options->first_url_ = std::move(url);
-  options->skip_confirmation_ = skip_confirmation;
-  options->link_preview_options_ = std::move(link_preview_options);
-  td_->create_handler<GetWebPagePreviewQuery>(std::move(promise))
-      ->send(formatted_text.text,
-             get_input_message_entities(td_->user_manager_.get(), formatted_text.entities, "get_web_page_preview"),
-             std::move(options));
-}
-
-void WebPagesManager::get_web_page_instant_view(const string &url, bool only_local, Promise<WebPageId> &&promise) {
-  LOG(INFO) << "Trying to get web page instant view for the URL \"" << url << '"';
-  if (url.empty()) {
-    return promise.set_value(WebPageId());
-  }
-  auto it = url_to_web_page_id_.find(url);
-  if (it != url_to_web_page_id_.end()) {
-    auto web_page_id = it->second.first;
-    if (web_page_id == WebPageId()) {
-      // ignore negative caching
-      return reload_web_page_by_url(url, only_local, std::move(promise));
-    }
-    return get_web_page_instant_view_impl(web_page_id, only_local, std::move(promise));
-  }
-
-  auto new_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), only_local, promise = std::move(promise)](Result<WebPageId> r_web_page_id) mutable {
-        if (r_web_page_id.is_error()) {
-          promise.set_error(r_web_page_id.move_as_error());
-        } else {
-          send_closure(actor_id, &WebPagesManager::get_web_page_instant_view_impl, r_web_page_id.ok(), only_local,
-                       std::move(promise));
-        }
-      });
-  load_web_page_by_url(url, only_local, std::move(new_promise));
-}
-
-void WebPagesManager::get_web_page_instant_view_impl(WebPageId web_page_id, bool only_local,
-                                                     Promise<WebPageId> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Trying to get web page instant view for " << web_page_id;
-
-  const WebPageInstantView *web_page_instant_view = get_web_page_instant_view(web_page_id);
-  if (web_page_instant_view == nullptr) {
-    return promise.set_value(WebPageId());
-  }
-
-  if (!web_page_instant_view->is_loaded_ || !only_local) {
-    return load_web_page_instant_view(web_page_id, only_local, std::move(promise));
-  }
-
-  promise.set_value(std::move(web_page_id));
-}
-
-string WebPagesManager::get_web_page_instant_view_database_key(WebPageId web_page_id) {
-  return PSTRING() << "wpiv" << web_page_id.get();
-}
-
-void WebPagesManager::load_web_page_instant_view(WebPageId web_page_id, bool only_local, Promise<WebPageId> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (only_local) {
-    const WebPageInstantView *web_page_instant_view = get_web_page_instant_view(web_page_id);
-    CHECK(web_page_instant_view != nullptr);
-
-    if (G()->use_message_database() && !web_page_instant_view->was_loaded_from_database_) {
-      auto &queries = load_local_web_page_instant_view_queries_[web_page_id];
-      queries.push_back(std::move(promise));
-      if (queries.size() == 1u) {
-        LOG(INFO) << "Load " << web_page_id << " instant view from database";
-        G()->td_db()->get_sqlite_pmc()->get(
-            get_web_page_instant_view_database_key(web_page_id),
-            PromiseCreator::lambda([actor_id = actor_id(this), web_page_id, only_local](string value) {
-              send_closure(actor_id, &WebPagesManager::on_load_web_page_instant_view_from_database, web_page_id,
-                           std::move(value));
-            }));
-      }
-      return;
-    }
-    return promise.set_value(WebPageId());
-  } else {
-    auto &queries = load_server_web_page_instant_view_queries_[web_page_id];
-    queries.push_back(std::move(promise));
-    if (queries.size() == 1u) {
-      LOG(INFO) << "Reload " << web_page_id << " instant view from server";
-      const WebPage *web_page = get_web_page(web_page_id);
-      CHECK(web_page != nullptr && !web_page->instant_view_.is_empty_);
-
-      auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), web_page_id](Result<WebPageId> result) {
-        send_closure(actor_id, &WebPagesManager::on_reload_web_page_instant_view, web_page_id, std::move(result));
-      });
-      td_->create_handler<GetWebPageQuery>(std::move(query_promise))
-          ->send(web_page_id, web_page->url_, web_page->instant_view_.is_full_ ? web_page->instant_view_.hash_ : 0);
-    }
-  }
-}
-
-void WebPagesManager::on_load_web_page_instant_view_from_database(WebPageId web_page_id, string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(G()->use_message_database());
-  LOG(INFO) << "Successfully loaded " << web_page_id << " instant view of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_web_page_instant_view_database_key(web_page_id), Auto());
-  //  value.clear();
-
-  WebPage *web_page = web_pages_.get_pointer(web_page_id);
-  if (web_page == nullptr || web_page->instant_view_.is_empty_) {
-    // possible if web page loses preview/instant view
-    LOG(WARNING) << "There is no instant view in " << web_page_id;
-    if (!value.empty()) {
-      G()->td_db()->get_sqlite_pmc()->erase(get_web_page_instant_view_database_key(web_page_id), Auto());
-    }
-    on_load_web_page_instant_view(web_page_id, WebPageId());
-    return;
-  }
-  auto &web_page_instant_view = web_page->instant_view_;
-  if (web_page_instant_view.was_loaded_from_database_) {
-    return;
-  }
-
-  WebPageInstantView instant_view;
-  if (!value.empty()) {
-    auto status = log_event_parse(instant_view, value);
-    if (status.is_error()) {
-      instant_view = WebPageInstantView();
-
-      LOG(ERROR) << "Erase instant view in " << web_page_id << " from database because of " << status.message();
-      G()->td_db()->get_sqlite_pmc()->erase(get_web_page_instant_view_database_key(web_page_id), Auto());
-    }
-  }
-  instant_view.was_loaded_from_database_ = true;
-
-  auto old_file_ids = get_web_page_file_ids(web_page);
-
-  update_web_page_instant_view(web_page_id, web_page_instant_view, std::move(instant_view));
-
-  auto new_file_ids = get_web_page_file_ids(web_page);
-  if (old_file_ids != new_file_ids) {
-    td_->file_manager_->change_files_source(get_web_page_file_source_id(web_page), old_file_ids, new_file_ids,
-                                            "on_load_web_page_instant_view_from_database");
-  }
-
-  on_load_web_page_instant_view(web_page_id, web_page_id);
-}
-
-void WebPagesManager::update_web_page_instant_view_load_requests(WebPageId web_page_id, WebPageId new_web_page_id,
-                                                                 vector<Promise<WebPageId>> &&promises) const {
-  LOG(INFO) << "Successfully loaded web page " << web_page_id << " as " << new_web_page_id;
-  const WebPageInstantView *web_page_instant_view = get_web_page_instant_view(new_web_page_id);
-  if (web_page_instant_view == nullptr) {
-    new_web_page_id = WebPageId();
-  } else if (!web_page_instant_view->is_loaded_) {
-    LOG(ERROR) << "Expected to receive instant view of " << web_page_id << '/' << new_web_page_id
-               << " from the server, but didn't receive it";
-    new_web_page_id = WebPageId();
-  }
-  for (auto &promise : promises) {
-    promise.set_value(WebPageId(new_web_page_id));
-  }
-}
-
-void WebPagesManager::on_load_web_page_instant_view(WebPageId web_page_id, WebPageId new_web_page_id) {
-  LOG(INFO) << "Update load requests for " << web_page_id;
-  auto it = load_local_web_page_instant_view_queries_.find(web_page_id);
-  if (it == load_local_web_page_instant_view_queries_.end()) {
-    return;
-  }
-  auto promises = std::move(it->second);
-  load_local_web_page_instant_view_queries_.erase(it);
-
-  update_web_page_instant_view_load_requests(web_page_id, new_web_page_id, std::move(promises));
-}
-
-void WebPagesManager::on_reload_web_page_instant_view(WebPageId web_page_id, Result<WebPageId> r_web_page_id) {
-  G()->ignore_result_if_closing(r_web_page_id);
-  if (r_web_page_id.is_ok()) {
-    on_load_web_page_instant_view(web_page_id, r_web_page_id.ok());
-  }
-  auto it = load_server_web_page_instant_view_queries_.find(web_page_id);
-  if (it == load_server_web_page_instant_view_queries_.end()) {
-    return;
-  }
-  auto promises = std::move(it->second);
-  load_server_web_page_instant_view_queries_.erase(it);
-
-  if (r_web_page_id.is_error()) {
-    LOG(INFO) << "Receive error " << r_web_page_id.error() << " for load " << web_page_id;
-    return fail_promises(promises, r_web_page_id.move_as_error());
-  }
-
-  update_web_page_instant_view_load_requests(web_page_id, r_web_page_id.move_as_ok(), std::move(promises));
-}
-
-string WebPagesManager::get_web_page_url(WebPageId web_page_id) const {
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page != nullptr) {
-    return web_page->url_;
-  }
-  return string();
-}
-
-WebPageId WebPagesManager::get_web_page_by_url(const string &url) const {
-  if (url.empty()) {
-    return WebPageId();
-  }
-
-  auto it = url_to_web_page_id_.find(url);
-  if (it != url_to_web_page_id_.end()) {
-    LOG(INFO) << "Return " << it->second << " for the URL \"" << url << '"';
-    return it->second.first;
-  }
-
-  LOG(INFO) << "Can't find web page identifier for the URL \"" << url << '"';
-  return WebPageId();
-}
-
-void WebPagesManager::fetch_web_page_by_url(const string &url, Promise<WebPageId> &&promise) {
-  LOG(INFO) << "Trying to get web page identifier for the URL \"" << url << '"';
-  if (url.empty()) {
-    return promise.set_value(WebPageId());
-  }
-
-  auto it = url_to_web_page_id_.find(url);
-  if (it != url_to_web_page_id_.end()) {
-    return promise.set_value(WebPageId(it->second.first));
-  }
-
-  load_web_page_by_url(url, false, std::move(promise));
-}
-
-void WebPagesManager::load_web_page_by_url(string url, bool only_local, Promise<WebPageId> &&promise) {
-  CHECK(!url.empty());
-  if (!G()->use_message_database()) {
-    return reload_web_page_by_url(url, only_local, std::move(promise));
-  }
-
-  LOG(INFO) << "Load \"" << url << '"';
-  auto key = get_web_page_url_database_key(url);
-  G()->td_db()->get_sqlite_pmc()->get(
-      key, PromiseCreator::lambda([actor_id = actor_id(this), url = std::move(url), only_local,
-                                   promise = std::move(promise)](string value) mutable {
-        send_closure(actor_id, &WebPagesManager::on_load_web_page_id_by_url_from_database, std::move(url), only_local,
-                     std::move(value), std::move(promise));
-      }));
-}
-
-void WebPagesManager::on_load_web_page_id_by_url_from_database(string url, bool only_local, string value,
-                                                               Promise<WebPageId> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Successfully loaded URL \"" << url << "\" of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_web_page_url_database_key(web_page_id), Auto());
-  //  value.clear();
-
-  auto it = url_to_web_page_id_.find(url);
-  if (it != url_to_web_page_id_.end()) {
-    // URL web page has already been loaded
-    return promise.set_value(WebPageId(it->second.first));
-  }
-  if (!value.empty()) {
-    auto web_page_id = WebPageId(to_integer<int64>(value));
-    if (web_page_id.is_valid()) {
-      if (have_web_page(web_page_id)) {
-        // URL web page has already been loaded
-        on_get_web_page_by_url(url, web_page_id, true);
-        promise.set_value(WebPageId(web_page_id));
-        return;
-      }
-
-      load_web_page_from_database(
-          web_page_id, PromiseCreator::lambda([actor_id = actor_id(this), web_page_id, url = std::move(url), only_local,
-                                               promise = std::move(promise)](Result<Unit> result) mutable {
-            send_closure(actor_id, &WebPagesManager::on_load_web_page_by_url_from_database, web_page_id, std::move(url),
-                         only_local, std::move(promise), std::move(result));
-          }));
-      return;
-    } else {
-      LOG(ERROR) << "Receive invalid " << web_page_id;
-    }
-  }
-
-  reload_web_page_by_url(url, only_local, std::move(promise));
-}
-
-void WebPagesManager::on_load_web_page_by_url_from_database(WebPageId web_page_id, string url, bool only_local,
-                                                            Promise<WebPageId> &&promise, Result<Unit> &&result) {
-  if (result.is_error()) {
-    CHECK(G()->close_flag());
-    return promise.set_error(Global::request_aborted_error());
-  }
-
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page == nullptr) {
-    return reload_web_page_by_url(url, only_local, std::move(promise));
-  }
-
-  if (web_page->url_ != url) {
-    on_get_web_page_by_url(url, web_page_id, true);
-  }
-
-  promise.set_value(WebPageId(web_page_id));
-}
-
-void WebPagesManager::reload_web_page_by_url(const string &url, bool only_local, Promise<WebPageId> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  if (only_local) {
-    return promise.set_value(WebPageId());
-  }
-  td_->create_handler<GetWebPageQuery>(std::move(promise))->send(WebPageId(), url, 0);
-}
-
-bool WebPagesManager::have_web_page(WebPageId web_page_id) const {
-  if (!web_page_id.is_valid()) {
-    return false;
-  }
-  return get_web_page(web_page_id) != nullptr;
-}
-
-bool WebPagesManager::can_web_page_be_album(const WebPage *web_page) {
-  if (web_page->type_ == "telegram_album") {
-    return true;
-  }
-  auto site_name = to_lower(web_page->site_name_);
-  return site_name == "instagram" || site_name == "twitter" || site_name == "x";
-}
-
-bool WebPagesManager::is_web_page_album(const WebPage *web_page) {
-  if (!web_page->is_album_checked_) {
-    web_page->is_album_checked_ = true;
-    if (web_page->type_ == "telegram_album") {
-      web_page->is_album_ = true;
-    } else if (can_web_page_be_album(web_page) && !web_page->instant_view_.is_empty_) {
-      if (!web_page->instant_view_.is_loaded_) {
-        LOG(ERROR) << "Have no instant view for " << web_page->url_;
-      } else {
-        web_page->is_album_ = WebPageBlock::are_allowed_album_block_types(web_page->instant_view_.page_blocks_);
-      }
-    }
-  }
-  return web_page->is_album_;
-}
-
-int32 WebPagesManager::get_video_start_timestamp(const string &url) {
-  auto r_info = LinkManager::get_message_link_info(url);
-  if (r_info.is_error()) {
-    return 0;
-  }
-  return r_info.ok().media_timestamp;
-}
-
-td_api::object_ptr<td_api::LinkPreviewType> WebPagesManager::get_link_preview_type_album_object(
-    const WebPageInstantView &instant_view) const {
-  if (instant_view.is_empty_ || !instant_view.is_loaded_) {
-    LOG(ERROR) << "Have no instant view in Telegram album for " << instant_view.url_;
-    return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-  }
-  vector<td_api::object_ptr<td_api::LinkPreviewAlbumMedia>> media;
-  string caption_text;
-  auto process_album = [&media, &caption_text](vector<td_api::object_ptr<td_api::PageBlock>> page_blocks,
-                                               td_api::object_ptr<td_api::pageBlockCaption> caption) {
-    for (auto &block : page_blocks) {
-      switch (block->get_id()) {
-        case td_api::pageBlockPhoto::ID: {
-          auto photo = std::move(static_cast<td_api::pageBlockPhoto *>(block.get())->photo_);
-          if (photo == nullptr) {
-            LOG(ERROR) << "Receive pageBlockPhoto without photo";
-          } else {
-            media.push_back(td_api::make_object<td_api::linkPreviewAlbumMediaPhoto>(std::move(photo)));
-          }
-          break;
-        }
-        case td_api::pageBlockVideo::ID: {
-          auto video = std::move(static_cast<td_api::pageBlockVideo *>(block.get())->video_);
-          if (video == nullptr) {
-            LOG(ERROR) << "Receive pageBlockVideo without video";
-          } else {
-            media.push_back(td_api::make_object<td_api::linkPreviewAlbumMediaVideo>(std::move(video)));
-          }
-          break;
-        }
-        default:
-          LOG(ERROR) << "Receive " << to_string(block);
-          break;
-      }
-    }
-    if (caption != nullptr && caption->text_ != nullptr && caption->text_->get_id() == td_api::richTextPlain::ID) {
-      caption_text = std::move(static_cast<const td_api::richTextPlain *>(caption->text_.get())->text_);
-    } else {
-      LOG(ERROR) << "Receive instead of caption text: " << to_string(caption);
-    }
-  };
-
-  for (auto &block_object : get_page_blocks_object(instant_view.page_blocks_, td_, Slice(), Slice())) {
-    switch (block_object->get_id()) {
-      case td_api::pageBlockTitle::ID:
-      case td_api::pageBlockAuthorDate::ID:
-        break;
-      case td_api::pageBlockCollage::ID: {
-        auto *collage = static_cast<td_api::pageBlockCollage *>(block_object.get());
-        process_album(std::move(collage->page_blocks_), std::move(collage->caption_));
-        break;
-      }
-      case td_api::pageBlockSlideshow::ID: {
-        auto *collage = static_cast<td_api::pageBlockSlideshow *>(block_object.get());
-        process_album(std::move(collage->page_blocks_), std::move(collage->caption_));
-        break;
-      }
-      default:
-        LOG(ERROR) << "Receive " << to_string(block_object);
-        break;
-    }
-  }
-  if (!media.empty()) {
-    return td_api::make_object<td_api::linkPreviewTypeAlbum>(std::move(media), caption_text);
-  }
-  LOG(ERROR) << "Have no media in Telegram album for " << instant_view.url_;
-  return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-}
-
-td_api::object_ptr<td_api::LinkPreviewType> WebPagesManager::get_link_preview_type_object(
-    const WebPage *web_page) const {
-  if (is_web_page_album(web_page)) {
-    return get_link_preview_type_album_object(web_page->instant_view_);
-  }
-  if (begins_with(web_page->type_, "telegram_")) {
-    Slice type = Slice(web_page->type_).substr(9);
-    if (type == "background") {
-      LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-      LOG_IF(ERROR,
-             web_page->document_.type != Document::Type::Unknown && web_page->document_.type != Document::Type::General)
-          << "Receive wrong document for " << web_page->url_;
-      bool is_pattern = false;
-      if (web_page->document_.type == Document::Type::General) {
-        auto mime_type = td_->documents_manager_->get_document_mime_type(web_page->document_.file_id);
-        is_pattern = mime_type == "image/png" || mime_type == "application/x-tgwallpattern";
-      }
-      return td_api::make_object<td_api::linkPreviewTypeBackground>(
-          web_page->document_.type == Document::Type::General
-              ? td_->documents_manager_->get_document_object(web_page->document_.file_id, PhotoFormat::Png)
-              : nullptr,
-          LinkManager::get_background_type_object(web_page->url_, is_pattern));
-    }
-    if (type == "bot") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeUser>(
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_), true);
-    }
-    if (type == "botapp") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeWebApp>(
-          get_photo_object(td_->file_manager_.get(), web_page->photo_));
-    }
-    if (type == "channel" || type == "channel_request") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeChat>(
-          td_api::make_object<td_api::inviteLinkChatTypeChannel>(),
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_), type.size() > 10);
-    }
-    if (type == "channel_boost") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeChannelBoost>(
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_));
-    }
-    if (type == "chat" || type == "chat_request") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeChat>(
-          td_api::make_object<td_api::inviteLinkChatTypeBasicGroup>(),
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_), type.size() > 10);
-    }
-    if (type == "chatlist") {
-      LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeShareableChatFolder>();
-    }
-    if (type == "giftcode") {
-      LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypePremiumGiftCode>();
-    }
-    if (type == "group_boost") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeSupergroupBoost>(
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_));
-    }
-    if (type == "invoice") {
-      LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeInvoice>();
-    }
-    if (type == "livestream") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeVideoChat>(
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_), true);
-    }
-    if (type == "megagroup" || type == "megagroup_request") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeChat>(
-          td_api::make_object<td_api::inviteLinkChatTypeSupergroup>(),
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_), type.size() > 10);
-    }
-    if (type == "message") {
-      LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeMessage>();
-    }
-    if (type == "nft") {
-      if (web_page->star_gifts_.size() == 1) {
-        return td_api::make_object<td_api::linkPreviewTypeUpgradedGift>(
-            web_page->star_gifts_[0].get_upgraded_gift_object(td_));
-      } else {
-        LOG(ERROR) << "Receive upgraded gift " << web_page->url_ << " without the gift";
-        return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-      }
-    }
-    if (type == "stickerset") {
-      LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-      auto stickers = transform(web_page->sticker_ids_, [&](FileId sticker_id) {
-        return td_->stickers_manager_->get_sticker_object(sticker_id);
-      });
-      return td_api::make_object<td_api::linkPreviewTypeStickerSet>(std::move(stickers));
-    }
-    if (type == "story") {
-      DialogId story_sender_dialog_id;
-      StoryId story_id;
-      if (web_page->story_full_ids_.size() == 1) {
-        story_sender_dialog_id = web_page->story_full_ids_[0].get_dialog_id();
-        story_id = web_page->story_full_ids_[0].get_story_id();
-        return td_api::make_object<td_api::linkPreviewTypeStory>(
-            td_->dialog_manager_->get_chat_id_object(story_sender_dialog_id, "webPage"), story_id.get());
-      } else {
-        LOG(ERROR) << "Receive Telegram story " << web_page->url_ << " without story";
-        return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-      }
-    }
-    if (type == "theme") {
-      LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-      vector<td_api::object_ptr<td_api::document>> documents;
-      for (auto &document : web_page->documents_) {
-        if (document.type == Document::Type::General) {
-          documents.push_back(td_->documents_manager_->get_document_object(document.file_id, PhotoFormat::Jpeg));
-        }
-      }
-      auto theme_settings =
-          !web_page->theme_settings_.is_empty() ? web_page->theme_settings_.get_theme_settings_object(td_) : nullptr;
-      return td_api::make_object<td_api::linkPreviewTypeTheme>(std::move(documents), std::move(theme_settings));
-    }
-    if (type == "user") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeUser>(
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_), false);
-    }
-    if (type == "videochat") {
-      LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-          << "Receive wrong document for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeVideoChat>(
-          get_chat_photo_object(td_->file_manager_.get(), web_page->photo_), false);
-    }
-  }
-  if (!web_page->embed_type_.empty() || !web_page->embed_url_.empty()) {
-    if (web_page->embed_type_ == "iframe") {
-      if (web_page->type_ == "audio") {
-        return td_api::make_object<td_api::linkPreviewTypeEmbeddedAudioPlayer>(
-            web_page->embed_url_, get_photo_object(td_->file_manager_.get(), web_page->photo_), web_page->duration_,
-            web_page->embed_dimensions_.width, web_page->embed_dimensions_.height);
-      }
-      if (web_page->type_ == "gif") {
-        return td_api::make_object<td_api::linkPreviewTypeEmbeddedAnimationPlayer>(
-            web_page->embed_url_, get_photo_object(td_->file_manager_.get(), web_page->photo_), web_page->duration_,
-            web_page->embed_dimensions_.width, web_page->embed_dimensions_.height);
-      }
-      if (web_page->type_ == "video") {
-        return td_api::make_object<td_api::linkPreviewTypeEmbeddedVideoPlayer>(
-            web_page->embed_url_, get_photo_object(td_->file_manager_.get(), web_page->photo_), web_page->duration_,
-            web_page->embed_dimensions_.width, web_page->embed_dimensions_.height);
-      }
-    } else {
-      // ordinary animation/audio/video
-      if (web_page->type_ == "audio") {
-        LOG_IF(ERROR,
-               web_page->document_.type != Document::Type::Unknown && web_page->document_.type != Document::Type::Audio)
-            << "Receive wrong document for " << web_page->url_;
-        auto audio = web_page->document_.type == Document::Type::Audio
-                         ? td_->audios_manager_->get_audio_object(web_page->document_.file_id)
-                         : nullptr;
-        if (audio != nullptr) {
-          return td_api::make_object<td_api::linkPreviewTypeAudio>(std::move(audio));
-        } else if (!web_page->embed_url_.empty()) {
-          return td_api::make_object<td_api::linkPreviewTypeExternalAudio>(web_page->embed_url_, web_page->embed_type_,
-                                                                           web_page->duration_);
-        } else {
-          if (!web_page->photo_.is_empty()) {
-            return td_api::make_object<td_api::linkPreviewTypePhoto>(
-                get_photo_object(td_->file_manager_.get(), web_page->photo_));
-          }
-          return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-        }
-      }
-      if (web_page->type_ == "gif") {
-        LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown &&
-                          web_page->document_.type != Document::Type::Animation)
-            << "Receive wrong document for " << web_page->url_;
-        auto animation = web_page->document_.type == Document::Type::Animation
-                             ? td_->animations_manager_->get_animation_object(web_page->document_.file_id)
-                             : nullptr;
-        if (animation != nullptr) {
-          return td_api::make_object<td_api::linkPreviewTypeAnimation>(std::move(animation));
-        } else {
-          if (!web_page->photo_.is_empty()) {
-            return td_api::make_object<td_api::linkPreviewTypePhoto>(
-                get_photo_object(td_->file_manager_.get(), web_page->photo_));
-          }
-          return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-        }
-      }
-      if (web_page->type_ == "video") {
-        LOG_IF(ERROR,
-               web_page->document_.type != Document::Type::Unknown && web_page->document_.type != Document::Type::Video)
-            << "Receive wrong document for " << web_page->url_;
-        auto video = web_page->document_.type == Document::Type::Video
-                         ? td_->videos_manager_->get_video_object(web_page->document_.file_id)
-                         : nullptr;
-        if (video != nullptr) {
-          return td_api::make_object<td_api::linkPreviewTypeVideo>(
-              std::move(video),
-              web_page->video_cover_photo_ ? get_photo_object(td_->file_manager_.get(), web_page->photo_) : nullptr,
-              get_video_start_timestamp(web_page->url_));
-        } else if (!web_page->embed_url_.empty()) {
-          return td_api::make_object<td_api::linkPreviewTypeExternalVideo>(
-              web_page->embed_url_, web_page->embed_type_, web_page->embed_dimensions_.width,
-              web_page->embed_dimensions_.height, web_page->duration_);
-        } else {
-          if (!web_page->photo_.is_empty()) {
-            return td_api::make_object<td_api::linkPreviewTypePhoto>(
-                get_photo_object(td_->file_manager_.get(), web_page->photo_));
-          }
-          return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-        }
-      }
-    }
-    LOG(ERROR) << "Have type = " << web_page->type_ << " for embedded " << web_page->url_;
-    return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-  }
-  bool is_generic = web_page->type_ == "document" || web_page->type_ == "article";
-  if (web_page->type_ == "app") {
-    LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-        << "Receive wrong document for " << web_page->url_;
-    return td_api::make_object<td_api::linkPreviewTypeApp>(
-        get_photo_object(td_->file_manager_.get(), web_page->photo_));
-  }
-  if (web_page->type_ == "audio" || (web_page->document_.type == Document::Type::Audio && is_generic)) {
-    LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-    auto audio = web_page->document_.type == Document::Type::Audio
-                     ? td_->audios_manager_->get_audio_object(web_page->document_.file_id)
-                     : nullptr;
-    if (audio != nullptr) {
-      return td_api::make_object<td_api::linkPreviewTypeAudio>(std::move(audio));
-    } else {
-      LOG(ERROR) << "Receive audio without audio for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-    }
-  }
-  if (web_page->document_.type == Document::Type::General && is_generic) {
-    LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-    auto document = td_->documents_manager_->get_document_object(web_page->document_.file_id, PhotoFormat::Jpeg);
-    return td_api::make_object<td_api::linkPreviewTypeDocument>(std::move(document));
-  }
-  if (web_page->type_ == "gif" || (web_page->document_.type == Document::Type::Animation && is_generic)) {
-    auto animation = web_page->document_.type == Document::Type::Animation
-                         ? td_->animations_manager_->get_animation_object(web_page->document_.file_id)
-                         : nullptr;
-    if (animation != nullptr) {
-      return td_api::make_object<td_api::linkPreviewTypeAnimation>(std::move(animation));
-    } else {
-      if (!web_page->photo_.is_empty()) {
-        return td_api::make_object<td_api::linkPreviewTypePhoto>(
-            get_photo_object(td_->file_manager_.get(), web_page->photo_));
-      }
-      LOG(ERROR) << "Receive animation without animation for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-    }
-  }
-  if (web_page->type_ == "photo" ||
-      (is_generic && web_page->document_.type == Document::Type::Unknown && !web_page->photo_.is_empty())) {
-    LOG_IF(ERROR, web_page->document_.type != Document::Type::Unknown)
-        << "Receive wrong document for " << web_page->url_;
-    auto photo = get_photo_object(td_->file_manager_.get(), web_page->photo_);
-    if (photo != nullptr) {
-      return td_api::make_object<td_api::linkPreviewTypePhoto>(std::move(photo));
-    } else {
-      LOG(ERROR) << "Receive photo without photo for " << web_page->url_;
-      return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-    }
-  }
-  if (web_page->document_.type == Document::Type::Sticker && is_generic) {
-    auto sticker = td_->stickers_manager_->get_sticker_object(web_page->document_.file_id);
-    return td_api::make_object<td_api::linkPreviewTypeSticker>(std::move(sticker));
-  }
-  if (web_page->type_ == "video" || (web_page->document_.type == Document::Type::Video && is_generic)) {
-    auto video = web_page->document_.type == Document::Type::Video
-                     ? td_->videos_manager_->get_video_object(web_page->document_.file_id)
-                     : nullptr;
-    if (video != nullptr) {
-      return td_api::make_object<td_api::linkPreviewTypeVideo>(
-          std::move(video),
-          web_page->video_cover_photo_ ? get_photo_object(td_->file_manager_.get(), web_page->photo_) : nullptr,
-          get_video_start_timestamp(web_page->url_));
-    } else {
-      if (!web_page->photo_.is_empty()) {
-        return td_api::make_object<td_api::linkPreviewTypePhoto>(
-            get_photo_object(td_->file_manager_.get(), web_page->photo_));
-      }
-      return td_api::make_object<td_api::linkPreviewTypeExternalVideo>(web_page->url_, "video/mp4", 0, 0,
-                                                                       web_page->duration_);
-    }
-  }
-  if (web_page->document_.type == Document::Type::VideoNote && is_generic) {
-    LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-    auto video_note = td_->video_notes_manager_->get_video_note_object(web_page->document_.file_id);
-    return td_api::make_object<td_api::linkPreviewTypeVideoNote>(std::move(video_note));
-  }
-  if (web_page->document_.type == Document::Type::VoiceNote && is_generic) {
-    LOG_IF(ERROR, !web_page->photo_.is_empty()) << "Receive photo for " << web_page->url_;
-    auto voice_note = td_->voice_notes_manager_->get_voice_note_object(web_page->document_.file_id);
-    return td_api::make_object<td_api::linkPreviewTypeVoiceNote>(std::move(voice_note));
-  }
-  if (web_page->type_ == "article") {
-    return td_api::make_object<td_api::linkPreviewTypeArticle>(
-        get_photo_object(td_->file_manager_.get(), web_page->photo_));
-  }
-
-  LOG(ERROR) << "Receive link preview of unsupported type " << web_page->type_;
-  return td_api::make_object<td_api::linkPreviewTypeUnsupported>();
-}
-
-td_api::object_ptr<td_api::linkPreview> WebPagesManager::get_link_preview_object(WebPageId web_page_id,
-                                                                                 bool force_small_media,
-                                                                                 bool force_large_media,
-                                                                                 bool skip_confirmation,
-                                                                                 bool invert_media) const {
-  if (!web_page_id.is_valid()) {
-    return nullptr;
-  }
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page == nullptr) {
-    return nullptr;
-  }
-  int32 instant_view_version = [web_page] {
-    if (web_page->instant_view_.is_empty_ || is_web_page_album(web_page)) {
-      return 0;
-    }
-    if (web_page->instant_view_.is_v2_) {
-      return 2;
-    }
-    return 1;
-  }();
-
-  FormattedText description;
-  description.text = web_page->description_;
-  description.entities = find_entities(web_page->description_, true, false);
-
-  auto r_url = parse_url(web_page->display_url_);
-  if (r_url.is_ok()) {
-    Slice host = r_url.ok().host_;
-    if (!host.empty() && host.back() == '.') {
-      host.truncate(host.size() - 1);
-    }
-
-    auto replace_entities = [](Slice text, vector<MessageEntity> &entities, auto replace_url) {
-      int32 current_offset = 0;
-      for (auto &entity : entities) {
-        CHECK(entity.offset >= current_offset);
-        text = utf8_utf16_substr(text, static_cast<size_t>(entity.offset - current_offset));
-        auto entity_text = utf8_utf16_substr(text, 0, static_cast<size_t>(entity.length));
-        text = text.substr(entity_text.size());
-        current_offset = entity.offset + entity.length;
-
-        auto replaced_url = replace_url(entity, entity_text);
-        if (!replaced_url.empty()) {
-          entity = MessageEntity(MessageEntity::Type::TextUrl, entity.offset, entity.length, std::move(replaced_url));
-        }
-      }
-    };
-
-    if (host == "instagram.com" || ends_with(host, ".instagram.com")) {
-      replace_entities(description.text, description.entities, [](const MessageEntity &entity, Slice text) {
-        if (entity.type == MessageEntity::Type::Mention) {
-          return PSTRING() << "https://www.instagram.com/" << text.substr(1) << '/';
-        }
-        if (entity.type == MessageEntity::Type::Hashtag) {
-          return PSTRING() << "https://www.instagram.com/explore/tags/" << url_encode(text.substr(1)) << '/';
-        }
-        return string();
-      });
-    } else if (host == "twitter.com" || ends_with(host, ".twitter.com")) {
-      replace_entities(description.text, description.entities, [](const MessageEntity &entity, Slice text) {
-        if (entity.type == MessageEntity::Type::Mention) {
-          return PSTRING() << "https://twitter.com/" << text.substr(1);
-        }
-        if (entity.type == MessageEntity::Type::Hashtag) {
-          return PSTRING() << "https://twitter.com/hashtag/" << url_encode(text.substr(1));
-        }
-        if (entity.type == MessageEntity::Type::Cashtag) {
-          return PSTRING() << "https://twitter.com/search?q=" << url_encode(text) << "&src=cashtag_click";
-        }
-        return string();
-      });
-    } else if (host == "t.me" || host == "telegram.me" || host == "telegram.dog" || host == "telesco.pe") {
-      // leave everything as is
-    } else {
-      td::remove_if(description.entities,
-                    [](const MessageEntity &entity) { return entity.type == MessageEntity::Type::Mention; });
-
-      if (host == "youtube.com" || host == "www.youtube.com") {
-        replace_entities(description.text, description.entities, [](const MessageEntity &entity, Slice text) {
-          if (entity.type == MessageEntity::Type::Hashtag) {
-            return PSTRING() << "https://www.youtube.com/results?search_query=" << url_encode(text);
-          }
-          return string();
-        });
-      } else if (host == "music.youtube.com") {
-        replace_entities(description.text, description.entities, [](const MessageEntity &entity, Slice text) {
-          if (entity.type == MessageEntity::Type::Hashtag) {
-            return PSTRING() << "https://music.youtube.com/search?q=" << url_encode(text);
-          }
-          return string();
-        });
-      }
-    }
-  }
-
-  auto duration = get_web_page_media_duration(web_page);
-  auto show_large_media = [&] {
-    if (web_page->document_.type == Document::Type::Audio || web_page->document_.type == Document::Type::VoiceNote ||
-        web_page->document_.type == Document::Type::General) {
-      return true;
-    }
-    if (!web_page->has_large_media_) {
-      return false;
-    }
-    if (force_large_media) {
-      return true;
-    }
-    if (force_small_media) {
-      return false;
-    }
-    if (instant_view_version != 0 || web_page->document_.file_id.is_valid() || web_page->photo_.is_empty()) {
-      return true;
-    }
-    Slice type = web_page->type_;
-    if (type != "app" && type != "article" && type != "profile" && type != "telegram_bot" &&
-        type != "telegram_channel" && type != "telegram_chat" && type != "telegram_channel_boost" &&
-        type != "telegram_livestream" && type != "telegram_megagroup" && type != "telegram_user" &&
-        type != "telegram_voicechat") {
-      return true;
-    }
-    if (web_page->site_name_.empty() && web_page->title_.empty() && web_page->description_.empty() &&
-        web_page->author_.empty()) {
-      return true;
-    }
-    if (web_page->site_name_ == "Twitter" || web_page->site_name_ == "Facebook" ||
-        web_page->site_name_ == "Instagram") {
-      return true;
-    }
-    return false;
-  }();
-  auto link_preview_type = get_link_preview_type_object(web_page);
-  bool show_media_above_description = false;
-  if (show_large_media) {
-    auto type_id = link_preview_type->get_id();
-    if (!web_page->embed_url_.empty() || type_id == td_api::linkPreviewTypeStory::ID) {
-      show_media_above_description = true;
-    } else if (type_id == td_api::linkPreviewTypeAlbum::ID ||
-               (type_id == td_api::linkPreviewTypePhoto::ID && instant_view_version > 0)) {
-      for (auto &photo_size : web_page->photo_.photos) {
-        if (photo_size.dimensions.width >= 256) {
-          show_media_above_description = true;
-        }
-      }
-    }
-  }
-  return td_api::make_object<td_api::linkPreview>(
-      web_page->url_, web_page->display_url_, web_page->site_name_, web_page->title_,
-      get_formatted_text_object(td_->user_manager_.get(), description, true,
-                                duration == 0 ? std::numeric_limits<int32>::max() : duration),
-      web_page->author_, std::move(link_preview_type), web_page->has_large_media_, show_large_media,
-      show_media_above_description, skip_confirmation, invert_media, instant_view_version);
-}
-
-td_api::object_ptr<td_api::webPageInstantView> WebPagesManager::get_web_page_instant_view_object(
-    WebPageId web_page_id) const {
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page == nullptr || web_page->instant_view_.is_empty_) {
-    return nullptr;
-  }
-  return get_web_page_instant_view_object(web_page_id, &web_page->instant_view_, web_page->url_);
-}
-
-td_api::object_ptr<td_api::webPageInstantView> WebPagesManager::get_web_page_instant_view_object(
-    WebPageId web_page_id, const WebPageInstantView *web_page_instant_view, Slice web_page_url) const {
-  if (web_page_instant_view == nullptr) {
-    return nullptr;
-  }
-  if (!web_page_instant_view->is_loaded_) {
-    LOG(ERROR) << "Trying to get not loaded web page instant view";
-    return nullptr;
-  }
-  auto feedback_link = td_api::make_object<td_api::internalLinkTypeBotStart>(
-      "previews", PSTRING() << "webpage" << web_page_id.get(), true);
-  return td_api::make_object<td_api::webPageInstantView>(
-      get_page_blocks_object(web_page_instant_view->page_blocks_, td_, web_page_instant_view->url_, web_page_url),
-      web_page_instant_view->view_count_, web_page_instant_view->is_v2_ ? 2 : 1, web_page_instant_view->is_rtl_,
-      web_page_instant_view->is_full_, std::move(feedback_link));
-}
-
-void WebPagesManager::on_web_page_changed(WebPageId web_page_id, bool have_web_page) {
-  LOG(INFO) << "Updated " << web_page_id;
-  {
-    auto it = web_page_messages_.find(web_page_id);
-    if (it != web_page_messages_.end()) {
-      vector<MessageFullId> message_full_ids;
-      for (const auto &message_full_id : it->second) {
-        message_full_ids.push_back(message_full_id);
-      }
-      CHECK(!message_full_ids.empty());
-      for (const auto &message_full_id : message_full_ids) {
-        if (!have_web_page) {
-          td_->messages_manager_->delete_pending_message_web_page(message_full_id);
-        } else {
-          td_->messages_manager_->on_external_update_message_content(message_full_id, "on_web_page_changed");
-        }
-      }
-
-      // don't check that on_external_update_message_content doesn't load new messages
-      if (!have_web_page && web_page_messages_.count(web_page_id) != 0) {
-        vector<MessageFullId> new_message_full_ids;
-        for (const auto &message_full_id : web_page_messages_[web_page_id]) {
-          new_message_full_ids.push_back(message_full_id);
-        }
-        LOG(FATAL) << message_full_ids << ' ' << new_message_full_ids;
-      }
-    }
-  }
-  {
-    auto it = web_page_quick_reply_messages_.find(web_page_id);
-    if (it != web_page_quick_reply_messages_.end()) {
-      vector<QuickReplyMessageFullId> message_full_ids;
-      for (const auto &message_full_id : it->second) {
-        message_full_ids.push_back(message_full_id);
-      }
-      CHECK(!message_full_ids.empty());
-      for (const auto &message_full_id : message_full_ids) {
-        if (!have_web_page) {
-          td_->quick_reply_manager_->delete_pending_message_web_page(message_full_id);
-        } else {
-          td_->quick_reply_manager_->on_external_update_message_content(message_full_id, "on_web_page_changed");
-        }
-      }
-
-      // don't check that on_external_update_message_content doesn't load new messages
-      if (!have_web_page && web_page_quick_reply_messages_.count(web_page_id) != 0) {
-        vector<QuickReplyMessageFullId> new_message_full_ids;
-        for (const auto &message_full_id : web_page_quick_reply_messages_[web_page_id]) {
-          new_message_full_ids.push_back(message_full_id);
-        }
-        LOG(FATAL) << message_full_ids << ' ' << new_message_full_ids;
-      }
-    }
-  }
-  {
-    auto it = pending_get_web_pages_.find(web_page_id);
-    if (it != pending_get_web_pages_.end()) {
-      auto requests = std::move(it->second);
-      pending_get_web_pages_.erase(it);
-      for (auto &request : requests) {
-        on_get_web_page_preview_success(std::move(request.first), have_web_page ? web_page_id : WebPageId(),
-                                        std::move(request.second));
-      }
-    }
-  }
-  pending_web_pages_timeout_.cancel_timeout(web_page_id.get());
-}
-
-void WebPagesManager::on_story_changed(StoryFullId story_full_id) {
-  auto story_it = story_web_pages_.find(story_full_id);
-  if (story_it == story_web_pages_.end()) {
-    return;
-  }
-  vector<WebPageId> web_page_ids;
-  for (auto web_page_id : story_it->second) {
-    web_page_ids.push_back(web_page_id);
-  }
-  for (auto web_page_id : web_page_ids) {
-    on_web_page_changed(web_page_id, true);
-  }
-}
-
-const WebPagesManager::WebPage *WebPagesManager::get_web_page(WebPageId web_page_id) const {
-  return web_pages_.get_pointer(web_page_id);
-}
-
-const WebPagesManager::WebPageInstantView *WebPagesManager::get_web_page_instant_view(WebPageId web_page_id) const {
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page == nullptr || web_page->instant_view_.is_empty_) {
-    return nullptr;
-  }
-  return &web_page->instant_view_;
-}
-
-void WebPagesManager::on_pending_web_page_timeout_callback(void *web_pages_manager_ptr, int64 web_page_id_int) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto web_pages_manager = static_cast<WebPagesManager *>(web_pages_manager_ptr);
-  send_closure_later(web_pages_manager->actor_id(web_pages_manager), &WebPagesManager::on_pending_web_page_timeout,
-                     WebPageId(web_page_id_int));
-}
-
-void WebPagesManager::on_pending_web_page_timeout(WebPageId web_page_id) {
-  if (G()->close_flag() || have_web_page(web_page_id)) {
-    return;
-  }
-
-  LOG(INFO) << "Process timeout for " << web_page_id;
-  int32 count = 0;
-  {
-    auto it = web_page_messages_.find(web_page_id);
-    if (it != web_page_messages_.end()) {
-      vector<MessageFullId> message_full_ids;
-      for (const auto &message_full_id : it->second) {
-        if (message_full_id.get_dialog_id().get_type() != DialogType::SecretChat) {
-          message_full_ids.push_back(message_full_id);
-        }
-        count++;
-      }
-      if (!message_full_ids.empty()) {
-        send_closure_later(G()->messages_manager(), &MessagesManager::get_messages_from_server,
-                           std::move(message_full_ids), Promise<Unit>(), "on_pending_web_page_timeout", nullptr);
-      }
-    }
-  }
-  {
-    auto it = web_page_quick_reply_messages_.find(web_page_id);
-    if (it != web_page_quick_reply_messages_.end()) {
-      for (const auto &message_full_id : it->second) {
-        send_closure_later(G()->quick_reply_manager(), &QuickReplyManager::reload_quick_reply_message,
-                           message_full_id.get_quick_reply_shortcut_id(), message_full_id.get_message_id(),
-                           Promise<Unit>());
-        count++;
-      }
-    }
-  }
-  {
-    auto it = pending_get_web_pages_.find(web_page_id);
-    if (it != pending_get_web_pages_.end()) {
-      auto requests = std::move(it->second);
-      pending_get_web_pages_.erase(it);
-      for (auto &request : requests) {
-        request.second.set_error(Status::Error(500, "Request timeout exceeded"));
-        count++;
-      }
-    }
-  }
-  if (count == 0) {
-    LOG(INFO) << "Have no messages and requests waiting for " << web_page_id;
-  }
-}
-
-void WebPagesManager::on_get_web_page_instant_view(WebPage *web_page, tl_object_ptr<telegram_api::page> &&page,
-                                                   int32 hash, DialogId owner_dialog_id) {
-  CHECK(page != nullptr);
-  FlatHashMap<int64, unique_ptr<Photo>> photos;
-  for (auto &photo_ptr : page->photos_) {
-    Photo photo = get_photo(td_, std::move(photo_ptr), owner_dialog_id);
-    if (photo.is_empty() || photo.id.get() == 0) {
-      LOG(ERROR) << "Receive empty photo in web page instant view for " << web_page->url_;
-    } else {
-      auto photo_id = photo.id.get();
-      photos.emplace(photo_id, make_unique<Photo>(std::move(photo)));
-    }
-  }
-  if (!web_page->photo_.is_empty() && web_page->photo_.id.get() != 0) {
-    photos.emplace(web_page->photo_.id.get(), make_unique<Photo>(web_page->photo_));
-  }
-
-  FlatHashMap<int64, FileId> animations;
-  FlatHashMap<int64, FileId> audios;
-  FlatHashMap<int64, FileId> documents;
-  FlatHashMap<int64, FileId> videos;
-  FlatHashMap<int64, FileId> voice_notes;
-  FlatHashMap<int64, FileId> others;
-  auto get_map = [&](Document::Type document_type) {
-    switch (document_type) {
-      case Document::Type::Animation:
-        return &animations;
-      case Document::Type::Audio:
-        return &audios;
-      case Document::Type::General:
-        return &documents;
-      case Document::Type::Video:
-        return &videos;
-      case Document::Type::VoiceNote:
-        return &voice_notes;
-      default:
-        return &others;
-    }
-  };
-
-  for (auto &document_ptr : page->documents_) {
-    if (document_ptr->get_id() == telegram_api::document::ID) {
-      auto document = move_tl_object_as<telegram_api::document>(document_ptr);
-      auto document_id = document->id_;
-      auto parsed_document = td_->documents_manager_->on_get_document(std::move(document), owner_dialog_id, false);
-      if (!parsed_document.empty() && document_id != 0) {
-        get_map(parsed_document.type)->emplace(document_id, parsed_document.file_id);
-      }
-    }
-  }
-  if (!others.empty()) {
-    auto file_view = td_->file_manager_->get_file_view(others.begin()->second);
-    LOG(ERROR) << "Receive document of an unexpected type " << file_view.get_type();
-  }
-
-  auto add_document = [&](const Document &document) {
-    auto file_view = td_->file_manager_->get_file_view(document.file_id);
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    if (full_remote_location != nullptr) {
-      auto document_id = full_remote_location->get_id();
-      if (document_id != 0) {
-        get_map(document.type)->emplace(document_id, document.file_id);
-      } else {
-        LOG(ERROR) << document.type << " has zero identifier";
-      }
-    } else {
-      LOG(ERROR) << document.type << " has no remote location";
-    }
-  };
-  if (!web_page->document_.empty()) {
-    add_document(web_page->document_);
-  }
-  for (const auto &document : web_page->documents_) {
-    add_document(document);
-  }
-  for (auto sticker_id : web_page->sticker_ids_) {
-    add_document({Document::Type::Sticker, sticker_id});
-  }
-
-  LOG(INFO) << "Receive a web page instant view with " << page->blocks_.size() << " blocks, " << animations.size()
-            << " animations, " << audios.size() << " audios, " << documents.size() << " documents, " << photos.size()
-            << " photos, " << videos.size() << " videos and " << voice_notes.size() << " voice notes";
-  web_page->instant_view_.page_blocks_ =
-      get_web_page_blocks(td_, std::move(page->blocks_), animations, audios, documents, photos, videos, voice_notes);
-  web_page->instant_view_.view_count_ = page->views_;
-  web_page->instant_view_.is_v2_ = page->v2_;
-  web_page->instant_view_.is_rtl_ = page->rtl_;
-  web_page->instant_view_.hash_ = hash;
-  web_page->instant_view_.url_ = std::move(page->url_);
-  web_page->instant_view_.is_empty_ = false;
-  web_page->instant_view_.is_full_ = !page->part_;
-  web_page->instant_view_.is_loaded_ = true;
-
-  LOG(DEBUG) << "Receive web page instant view: "
-             << to_string(get_web_page_instant_view_object(WebPageId(), &web_page->instant_view_, web_page->url_));
-}
-
-class WebPagesManager::WebPageLogEvent {
- public:
-  WebPageId web_page_id;
-  const WebPage *web_page_in;
-  unique_ptr<WebPage> web_page_out;
-
-  WebPageLogEvent() = default;
-
-  WebPageLogEvent(WebPageId web_page_id, const WebPage *web_page) : web_page_id(web_page_id), web_page_in(web_page) {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(web_page_id, storer);
-    td::store(*web_page_in, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    td::parse(web_page_id, parser);
-    td::parse(web_page_out, parser);
-  }
-};
-
-void WebPagesManager::save_web_page(const WebPage *web_page, WebPageId web_page_id, bool from_binlog) {
-  if (!G()->use_message_database()) {
-    return;
-  }
-
-  CHECK(web_page != nullptr);
-  if (!from_binlog) {
-    WebPageLogEvent log_event(web_page_id, web_page);
-    auto storer = get_log_event_storer(log_event);
-    if (web_page->log_event_id_ == 0) {
-      web_page->log_event_id_ = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::WebPages, storer);
-    } else {
-      binlog_rewrite(G()->td_db()->get_binlog(), web_page->log_event_id_, LogEvent::HandlerType::WebPages, storer);
-    }
-  }
-
-  LOG(INFO) << "Save " << web_page_id << " to database";
-  G()->td_db()->get_sqlite_pmc()->set(
-      get_web_page_database_key(web_page_id), log_event_store(*web_page).as_slice().str(),
-      PromiseCreator::lambda([actor_id = actor_id(this), web_page_id](Result<> result) {
-        send_closure(actor_id, &WebPagesManager::on_save_web_page_to_database, web_page_id, result.is_ok());
-      }));
-}
-
-string WebPagesManager::get_web_page_url_database_key(const string &url) {
-  return "wpurl" + url;
-}
-
-void WebPagesManager::on_binlog_web_page_event(BinlogEvent &&event) {
-  if (!G()->use_message_database()) {
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-
-  WebPageLogEvent log_event;
-  log_event_parse(log_event, event.get_data()).ensure();
-
-  auto web_page_id = log_event.web_page_id;
-  if (!web_page_id.is_valid()) {
-    binlog_erase(G()->td_db()->get_binlog(), event.id_);
-    return;
-  }
-  LOG(INFO) << "Add " << web_page_id << " from binlog";
-  auto web_page = std::move(log_event.web_page_out);
-  CHECK(web_page != nullptr);
-
-  web_page->log_event_id_ = event.id_;
-
-  update_web_page(std::move(web_page), web_page_id, true, false);
-}
-
-string WebPagesManager::get_web_page_database_key(WebPageId web_page_id) {
-  return PSTRING() << "wp" << web_page_id.get();
-}
-
-void WebPagesManager::on_save_web_page_to_database(WebPageId web_page_id, bool success) {
-  if (G()->close_flag()) {
-    return;
-  }
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page == nullptr) {
-    LOG(ERROR) << "Can't find " << (success ? "saved " : "failed to save ") << web_page_id;
-    return;
-  }
-
-  if (!success) {
-    LOG(ERROR) << "Failed to save " << web_page_id << " to database";
-    save_web_page(web_page, web_page_id, web_page->log_event_id_ != 0);
-  } else {
-    LOG(INFO) << "Successfully saved " << web_page_id << " to database";
-    if (web_page->log_event_id_ != 0) {
-      LOG(INFO) << "Erase " << web_page_id << " from binlog";
-      binlog_erase(G()->td_db()->get_binlog(), web_page->log_event_id_);
-      web_page->log_event_id_ = 0;
-    }
-  }
-}
-
-void WebPagesManager::load_web_page_from_database(WebPageId web_page_id, Promise<Unit> promise) {
-  if (!G()->use_message_database() || loaded_from_database_web_pages_.count(web_page_id) || !web_page_id.is_valid()) {
-    promise.set_value(Unit());
-    return;
-  }
-
-  LOG(INFO) << "Load " << web_page_id << " from database";
-  auto &load_web_page_queries = load_web_page_from_database_queries_[web_page_id];
-  load_web_page_queries.push_back(std::move(promise));
-  if (load_web_page_queries.size() == 1u) {
-    G()->td_db()->get_sqlite_pmc()->get(get_web_page_database_key(web_page_id),
-                                        PromiseCreator::lambda([actor_id = actor_id(this), web_page_id](string value) {
-                                          send_closure(actor_id, &WebPagesManager::on_load_web_page_from_database,
-                                                       web_page_id, std::move(value));
-                                        }));
-  }
-}
-
-void WebPagesManager::on_load_web_page_from_database(WebPageId web_page_id, string value) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(web_page_id.is_valid());
-  if (!loaded_from_database_web_pages_.insert(web_page_id).second) {
-    return;
-  }
-
-  auto it = load_web_page_from_database_queries_.find(web_page_id);
-  vector<Promise<Unit>> promises;
-  if (it != load_web_page_from_database_queries_.end()) {
-    promises = std::move(it->second);
-    CHECK(!promises.empty());
-    load_web_page_from_database_queries_.erase(it);
-  }
-
-  LOG(INFO) << "Successfully loaded " << web_page_id << " of size " << value.size() << " from database";
-  //  G()->td_db()->get_sqlite_pmc()->erase(get_web_page_database_key(web_page_id), Auto());
-  //  value.clear();
-
-  if (!have_web_page(web_page_id)) {
-    if (!value.empty()) {
-      auto result = make_unique<WebPage>();
-      auto status = log_event_parse(*result, value);
-      if (status.is_error()) {
-        LOG(ERROR) << "Failed to parse web page loaded from database: " << status
-                   << ", value = " << format::as_hex_dump<4>(Slice(value));
-      } else {
-        update_web_page(std::move(result), web_page_id, true, true);
-
-        const WebPage *web_page = get_web_page(web_page_id);
-        if (web_page != nullptr && can_web_page_be_album(web_page) && !web_page->instant_view_.is_empty_ &&
-            !web_page->instant_view_.is_loaded_) {
-          LOG(INFO) << "Forcely load instant view of " << web_page_id;
-          on_load_web_page_instant_view_from_database(
-              web_page_id,
-              G()->td_db()->get_sqlite_sync_pmc()->get(get_web_page_instant_view_database_key(web_page_id)));
-        }
-      }
-    }
-  } else {
-    // web page has already been loaded from the server
-  }
-
-  set_promises(promises);
-}
-
-bool WebPagesManager::have_web_page_force(WebPageId web_page_id) {
-  return get_web_page_force(web_page_id) != nullptr;
-}
-
-const WebPagesManager::WebPage *WebPagesManager::get_web_page_force(WebPageId web_page_id) {
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page != nullptr) {
-    return web_page;
-  }
-  if (!G()->use_message_database()) {
-    return nullptr;
-  }
-  if (!web_page_id.is_valid() || loaded_from_database_web_pages_.count(web_page_id)) {
-    return nullptr;
-  }
-
-  LOG(INFO) << "Trying to load " << web_page_id << " from database";
-  on_load_web_page_from_database(web_page_id,
-                                 G()->td_db()->get_sqlite_sync_pmc()->get(get_web_page_database_key(web_page_id)));
-  return get_web_page(web_page_id);
-}
-
-FileSourceId WebPagesManager::get_web_page_file_source_id(WebPage *web_page) {
-  if (!web_page->file_source_id_.is_valid()) {
-    web_page->file_source_id_ = td_->file_reference_manager_->create_web_page_file_source(web_page->url_);
-    VLOG(file_references) << "Create " << web_page->file_source_id_ << " for URL " << web_page->url_;
-  } else {
-    VLOG(file_references) << "Return " << web_page->file_source_id_ << " for URL " << web_page->url_;
-  }
-  return web_page->file_source_id_;
-}
-
-FileSourceId WebPagesManager::get_url_file_source_id(const string &url) {
-  if (url.empty()) {
-    return FileSourceId();
-  }
-
-  auto web_page_id = get_web_page_by_url(url);
-  if (web_page_id.is_valid()) {
-    const WebPage *web_page = get_web_page(web_page_id);
-    if (web_page != nullptr) {
-      if (!web_page->file_source_id_.is_valid()) {
-        web_pages_[web_page_id]->file_source_id_ =
-            td_->file_reference_manager_->create_web_page_file_source(web_page->url_);
-        VLOG(file_references) << "Create " << web_page->file_source_id_ << " for " << web_page_id << " with URL "
-                              << url;
-      } else {
-        VLOG(file_references) << "Return " << web_page->file_source_id_ << " for " << web_page_id << " with URL "
-                              << url;
-      }
-      return web_page->file_source_id_;
-    }
-  }
-  auto &source_id = url_to_file_source_id_[url];
-  if (!source_id.is_valid()) {
-    source_id = td_->file_reference_manager_->create_web_page_file_source(url);
-    VLOG(file_references) << "Create " << source_id << " for URL " << url;
-  } else {
-    VLOG(file_references) << "Return " << source_id << " for URL " << url;
-  }
-  return source_id;
-}
-
-string WebPagesManager::get_web_page_search_text(WebPageId web_page_id) const {
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page == nullptr) {
-    return "";
-  }
-  return PSTRING() << web_page->title_ + ' ' + web_page->description_;
-}
-
-int32 WebPagesManager::get_web_page_media_duration(WebPageId web_page_id) const {
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page == nullptr) {
-    return -1;
-  }
-  return get_web_page_media_duration(web_page);
-}
-
-int32 WebPagesManager::get_web_page_media_duration(const WebPage *web_page) const {
-  if (web_page->document_.type == Document::Type::Audio || web_page->document_.type == Document::Type::Video ||
-      web_page->document_.type == Document::Type::VideoNote || web_page->document_.type == Document::Type::VoiceNote ||
-      web_page->embed_type_ == "iframe") {
-    return web_page->duration_;
-  }
-  if (!web_page->story_full_ids_.empty()) {
-    auto story_duration = td_->story_manager_->get_story_duration(web_page->story_full_ids_[0]);
-    return story_duration >= 0 ? story_duration : web_page->duration_;
-  }
-
-  return -1;
-}
-
-StoryFullId WebPagesManager::get_web_page_story_full_id(WebPageId web_page_id) const {
-  const WebPage *web_page = get_web_page(web_page_id);
-  if (web_page == nullptr || web_page->story_full_ids_.empty()) {
-    return StoryFullId();
-  }
-  return web_page->story_full_ids_[0];
-}
-
-vector<UserId> WebPagesManager::get_web_page_user_ids(WebPageId web_page_id) const {
-  const WebPage *web_page = get_web_page(web_page_id);
-  vector<UserId> user_ids;
-  if (web_page != nullptr && !web_page->story_full_ids_.empty()) {
-    for (auto story_full_id : web_page->story_full_ids_) {
-      auto dialog_id = story_full_id.get_dialog_id();
-      if (dialog_id.get_type() == DialogType::User) {
-        user_ids.push_back(dialog_id.get_user_id());
-      }
-    }
-  }
-  return user_ids;
-}
-
-vector<ChannelId> WebPagesManager::get_web_page_channel_ids(WebPageId web_page_id) const {
-  const WebPage *web_page = get_web_page(web_page_id);
-  vector<ChannelId> channel_ids;
-  if (web_page != nullptr && !web_page->story_full_ids_.empty()) {
-    for (auto story_full_id : web_page->story_full_ids_) {
-      auto dialog_id = story_full_id.get_dialog_id();
-      if (dialog_id.get_type() == DialogType::Channel) {
-        channel_ids.push_back(dialog_id.get_channel_id());
-      }
-    }
-  }
-  return channel_ids;
-}
-
-vector<FileId> WebPagesManager::get_web_page_file_ids(const WebPage *web_page) const {
-  if (web_page == nullptr) {
-    return vector<FileId>();
-  }
-
-  vector<FileId> result = photo_get_file_ids(web_page->photo_);
-  if (!web_page->document_.empty()) {
-    web_page->document_.append_file_ids(td_, result);
-  }
-  for (auto &document : web_page->documents_) {
-    document.append_file_ids(td_, result);
-  }
-  append(result, web_page->sticker_ids_);
-  if (!web_page->instant_view_.is_empty_) {
-    for (auto &page_block : web_page->instant_view_.page_blocks_) {
-      page_block->append_file_ids(td_, result);
-    }
-  }
-  // don't need to return gift file identifiers
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/WebPagesManager.h b/third-party/td/td/td/telegram/WebPagesManager.h
deleted file mode 100644
index 37325e11d6..0000000000
--- a/third-party/td/td/td/telegram/WebPagesManager.h
+++ /dev/null
@@ -1,238 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/MessageFullId.h"
-#include "td/telegram/QuickReplyMessageFullId.h"
-#include "td/telegram/StoryFullId.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-#include "td/telegram/WebPageId.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-#include <utility>
-
-namespace td {
-
-struct BinlogEvent;
-
-class Td;
-
-class WebPagesManager final : public Actor {
- public:
-  WebPagesManager(Td *td, ActorShared<> parent);
-
-  WebPagesManager(const WebPagesManager &) = delete;
-  WebPagesManager &operator=(const WebPagesManager &) = delete;
-  WebPagesManager(WebPagesManager &&) = delete;
-  WebPagesManager &operator=(WebPagesManager &&) = delete;
-  ~WebPagesManager() final;
-
-  struct GetWebPagePreviewOptions {
-    string first_url_;
-    bool skip_confirmation_ = false;
-    td_api::object_ptr<td_api::linkPreviewOptions> link_preview_options_;
-  };
-
-  static string get_web_page_url(const tl_object_ptr<telegram_api::WebPage> &web_page_ptr);
-
-  WebPageId on_get_web_page(tl_object_ptr<telegram_api::WebPage> &&web_page_ptr, DialogId owner_dialog_id);
-
-  void on_get_web_page_by_url(const string &url, WebPageId web_page_id, bool from_database);
-
-  void on_get_web_page_instant_view_view_count(WebPageId web_page_id, int32 view_count);
-
-  void register_web_page(WebPageId web_page_id, MessageFullId message_full_id, const char *source);
-
-  void unregister_web_page(WebPageId web_page_id, MessageFullId message_full_id, const char *source);
-
-  void register_quick_reply_web_page(WebPageId web_page_id, QuickReplyMessageFullId message_full_id,
-                                     const char *source);
-
-  void unregister_quick_reply_web_page(WebPageId web_page_id, QuickReplyMessageFullId message_full_id,
-                                       const char *source);
-
-  bool have_web_page(WebPageId web_page_id) const;
-
-  bool have_web_page_force(WebPageId web_page_id);
-
-  td_api::object_ptr<td_api::linkPreview> get_link_preview_object(WebPageId web_page_id, bool force_small_media,
-                                                                  bool force_large_media, bool skip_confirmation,
-                                                                  bool invert_media) const;
-
-  td_api::object_ptr<td_api::webPageInstantView> get_web_page_instant_view_object(WebPageId web_page_id) const;
-
-  void get_web_page_preview(td_api::object_ptr<td_api::formattedText> &&text,
-                            td_api::object_ptr<td_api::linkPreviewOptions> &&link_preview_options,
-                            Promise<td_api::object_ptr<td_api::linkPreview>> &&promise);
-
-  void get_web_page_instant_view(const string &url, bool only_local, Promise<WebPageId> &&promise);
-
-  string get_web_page_url(WebPageId web_page_id) const;
-
-  WebPageId get_web_page_by_url(const string &url) const;
-
-  void fetch_web_page_by_url(const string &url, Promise<WebPageId> &&promise);
-
-  void reload_web_page_by_url(const string &url, bool only_local, Promise<WebPageId> &&promise);
-
-  void on_get_web_page_preview(unique_ptr<GetWebPagePreviewOptions> &&options,
-                               tl_object_ptr<telegram_api::MessageMedia> &&message_media_ptr,
-                               Promise<td_api::object_ptr<td_api::linkPreview>> &&promise);
-
-  void on_binlog_web_page_event(BinlogEvent &&event);
-
-  FileSourceId get_url_file_source_id(const string &url);
-
-  string get_web_page_search_text(WebPageId web_page_id) const;
-
-  int32 get_web_page_media_duration(WebPageId web_page_id) const;
-
-  StoryFullId get_web_page_story_full_id(WebPageId web_page_id) const;
-
-  vector<UserId> get_web_page_user_ids(WebPageId web_page_id) const;
-
-  vector<ChannelId> get_web_page_channel_ids(WebPageId web_page_id) const;
-
-  void on_story_changed(StoryFullId story_full_id);
-
- private:
-  class WebPage;
-
-  class WebPageInstantView;
-
-  class WebPageLogEvent;
-
-  void update_web_page(unique_ptr<WebPage> web_page, WebPageId web_page_id, bool from_binlog, bool from_database);
-
-  void update_web_page_instant_view(WebPageId web_page_id, WebPageInstantView &new_instant_view,
-                                    WebPageInstantView &&old_instant_view);
-
-  static bool need_use_old_instant_view(const WebPageInstantView &new_instant_view,
-                                        const WebPageInstantView &old_instant_view);
-
-  void on_web_page_changed(WebPageId web_page_id, bool have_web_page);
-
-  const WebPage *get_web_page(WebPageId web_page_id) const;
-
-  const WebPageInstantView *get_web_page_instant_view(WebPageId web_page_id) const;
-
-  void get_web_page_instant_view_impl(WebPageId web_page_id, bool only_local, Promise<WebPageId> &&promise);
-
-  td_api::object_ptr<td_api::LinkPreviewType> get_link_preview_type_album_object(
-      const WebPageInstantView &instant_view) const;
-
-  td_api::object_ptr<td_api::LinkPreviewType> get_link_preview_type_object(const WebPage *web_page) const;
-
-  td_api::object_ptr<td_api::webPageInstantView> get_web_page_instant_view_object(
-      WebPageId web_page_id, const WebPageInstantView *web_page_instant_view, Slice web_page_url) const;
-
-  static void on_pending_web_page_timeout_callback(void *web_pages_manager_ptr, int64 web_page_id_int);
-
-  void on_pending_web_page_timeout(WebPageId web_page_id);
-
-  void on_get_web_page_preview_success(unique_ptr<GetWebPagePreviewOptions> &&options, WebPageId web_page_id,
-                                       Promise<td_api::object_ptr<td_api::linkPreview>> &&promise);
-
-  void on_get_web_page_instant_view(WebPage *web_page, tl_object_ptr<telegram_api::page> &&page, int32 hash,
-                                    DialogId owner_dialog_id);
-
-  void save_web_page(const WebPage *web_page, WebPageId web_page_id, bool from_binlog);
-
-  static string get_web_page_database_key(WebPageId web_page_id);
-
-  void on_save_web_page_to_database(WebPageId web_page_id, bool success);
-
-  void load_web_page_from_database(WebPageId web_page_id, Promise<Unit> promise);
-
-  void on_load_web_page_from_database(WebPageId web_page_id, string value);
-
-  const WebPage *get_web_page_force(WebPageId web_page_id);
-
-  static string get_web_page_instant_view_database_key(WebPageId web_page_id);
-
-  void load_web_page_instant_view(WebPageId web_page_id, bool only_local, Promise<WebPageId> &&promise);
-
-  void update_web_page_instant_view_load_requests(WebPageId web_page_id, WebPageId new_web_page_id,
-                                                  vector<Promise<WebPageId>> &&promises) const;
-
-  void on_load_web_page_instant_view_from_database(WebPageId web_page_id, string value);
-
-  void on_load_web_page_instant_view(WebPageId web_page_id, WebPageId new_web_page_id);
-
-  void reload_web_page_instant_view(WebPageId web_page_id);
-
-  void on_reload_web_page_instant_view(WebPageId web_page_id, Result<WebPageId> r_web_page_id);
-
-  static string get_web_page_url_database_key(const string &url);
-
-  void load_web_page_by_url(string url, bool only_local, Promise<WebPageId> &&promise);
-
-  void on_load_web_page_id_by_url_from_database(string url, bool only_local, string value,
-                                                Promise<WebPageId> &&promise);
-
-  void on_load_web_page_by_url_from_database(WebPageId web_page_id, string url, bool only_local,
-                                             Promise<WebPageId> &&promise, Result<Unit> &&result);
-
-  void tear_down() final;
-
-  int32 get_web_page_media_duration(const WebPage *web_page) const;
-
-  FileSourceId get_web_page_file_source_id(WebPage *web_page);
-
-  vector<FileId> get_web_page_file_ids(const WebPage *web_page) const;
-
-  static int32 get_video_start_timestamp(const string &url);
-
-  static bool can_web_page_be_album(const WebPage *web_page);
-
-  static bool is_web_page_album(const WebPage *web_page);
-
-  Td *td_;
-  ActorShared<> parent_;
-  WaitFreeHashMap<WebPageId, unique_ptr<WebPage>, WebPageIdHash> web_pages_;
-
-  FlatHashMap<WebPageId, vector<Promise<Unit>>, WebPageIdHash> load_web_page_from_database_queries_;
-  FlatHashSet<WebPageId, WebPageIdHash> loaded_from_database_web_pages_;
-
-  FlatHashMap<WebPageId, vector<Promise<WebPageId>>, WebPageIdHash> load_local_web_page_instant_view_queries_;
-  FlatHashMap<WebPageId, vector<Promise<WebPageId>>, WebPageIdHash> load_server_web_page_instant_view_queries_;
-
-  FlatHashMap<WebPageId, FlatHashSet<MessageFullId, MessageFullIdHash>, WebPageIdHash> web_page_messages_;
-  FlatHashMap<WebPageId, FlatHashSet<QuickReplyMessageFullId, QuickReplyMessageFullIdHash>, WebPageIdHash>
-      web_page_quick_reply_messages_;
-
-  FlatHashMap<WebPageId,
-              vector<std::pair<unique_ptr<GetWebPagePreviewOptions>, Promise<td_api::object_ptr<td_api::linkPreview>>>>,
-              WebPageIdHash>
-      pending_get_web_pages_;
-
-  FlatHashMap<StoryFullId, FlatHashSet<WebPageId, WebPageIdHash>, StoryFullIdHash> story_web_pages_;
-
-  FlatHashMap<string, std::pair<WebPageId, bool>> url_to_web_page_id_;  // URL -> [WebPageId, from_database]
-
-  FlatHashMap<string, FileSourceId> url_to_file_source_id_;
-
-  MultiTimeout pending_web_pages_timeout_{"PendingWebPagesTimeout"};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/cli.cpp b/third-party/td/td/td/telegram/cli.cpp
deleted file mode 100644
index 8be806dccf..0000000000
--- a/third-party/td/td/td/telegram/cli.cpp
+++ /dev/null
@@ -1,7887 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/Client.h"
-#include "td/telegram/ClientActor.h"
-#include "td/telegram/td_api_json.h"
-
-#include "td/net/HttpQuery.h"
-#include "td/net/HttpReader.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "memprof/memprof.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/CombinedLog.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/FileLog.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/format.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/NullLog.h"
-#include "td/utils/OptionParser.h"
-#include "td/utils/port/detail/ThreadIdGuard.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/port/signals.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/port/StdStreams.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/TsLog.h"
-#include "td/utils/utf8.h"
-
-#ifndef USE_READLINE
-#include "td/utils/find_boundary.h"
-#endif
-
-#include <algorithm>
-#include <atomic>
-#include <cstdio>
-#include <cstdlib>
-#include <ctime>
-#include <iostream>
-#include <limits>
-#include <locale>
-#include <memory>
-#include <queue>
-#include <tuple>
-#include <utility>
-
-#ifdef USE_READLINE
-/* Standard readline include files. */
-#include <readline/history.h>
-#include <readline/readline.h>
-#endif
-
-namespace td {
-
-static void dump_memory_usage() {
-  if (is_memprof_on()) {
-    LOG(WARNING) << "Memory dump:";
-    clear_thread_locals();
-    std::vector<AllocInfo> alloc_info;
-    dump_alloc([&](const AllocInfo &info) { alloc_info.push_back(info); });
-    std::sort(alloc_info.begin(), alloc_info.end(),
-              [](const AllocInfo &lhs, const AllocInfo &rhs) { return lhs.size > rhs.size; });
-    size_t total_size = 0;
-    size_t other_size = 0;
-    int cnt = 0;
-    for (auto &info : alloc_info) {
-      if (cnt++ < 50) {
-        LOG(WARNING) << format::as_size(info.size) << format::as_array(info.backtrace);
-      } else {
-        other_size += info.size;
-      }
-      total_size += info.size;
-    }
-    LOG(WARNING) << tag("other", format::as_size(other_size));
-    LOG(WARNING) << tag("total", format::as_size(total_size));
-    LOG(WARNING) << tag("total traces", get_ht_size());
-    LOG(WARNING) << tag("fast_backtrace_success_rate", get_fast_backtrace_success_rate());
-  }
-}
-
-#ifdef USE_READLINE
-const char *prompt = "td_cli> ";
-static int32 saved_point;
-static string saved_line;
-static std::atomic_flag readline_lock = ATOMIC_FLAG_INIT;
-
-static void deactivate_readline() {
-  while (readline_lock.test_and_set(std::memory_order_acquire)) {
-    // spin
-  }
-
-  saved_point = rl_point;
-  saved_line = string(rl_line_buffer, rl_end);
-
-  rl_set_prompt("");
-  rl_replace_line("", 0);
-  rl_redisplay();
-}
-
-static void reactivate_readline() {
-  rl_set_prompt(prompt);
-  rl_replace_line(saved_line.c_str(), 0);
-  rl_point = saved_point;
-  rl_redisplay();
-
-  readline_lock.clear(std::memory_order_release);
-}
-
-static char *command_generator(const char *text, int state) {
-  static const vector<CSlice> commands{"Search",
-                                       "SearchA",
-                                       "SearchM",
-                                       "SearchP",
-                                       "SearchG",
-                                       "SearchC",
-                                       "SearchAudio",
-                                       "SearchDocument",
-                                       "SearchPhoto",
-                                       "SearchChatPhoto",
-                                       "GetChatAdministrators",
-                                       "GetSupergroupAdministrators",
-                                       "GetSupergroupBanned",
-                                       "GetSupergroupBots",
-                                       "GetSupergroupContacts",
-                                       "GetSupergroupMembers",
-                                       "GetSupergroupRestricted",
-                                       "SearchSupergroupMembers",
-                                       "SearchSupergroupMentions"};
-  static size_t cmd_i;
-  if (state == 0) {
-    cmd_i = 0;
-  }
-
-  while (cmd_i < commands.size()) {
-    const char *a = commands[cmd_i++].c_str();
-    const char *b = text;
-    const char *c = b;
-    while (*c && to_lower(*c) == *c) {
-      c++;
-    }
-    bool only_lowercase = !is_alpha(*c);
-    while (*a && *b) {
-      if (*a == *b || (only_lowercase && *a == to_upper(*b))) {
-        b++;
-      }
-      a++;
-    }
-    if (*b == 0) {
-// TODO call to strdup is completely wrong. Readline will try to call std::free() on the returned char*,
-// which may be incompatible with the std::malloc() called by strdup
-// It is especially likely to happen if Readline is used as dynamic library
-// Unfortunately Readline doesn't provide memory allocation functions/memory deallocation callbacks to fix this
-#if TD_MSVC
-      return _strdup(commands[cmd_i - 1].c_str());
-#else
-      return strdup(commands[cmd_i - 1].c_str());
-#endif
-    }
-  }
-  return nullptr;
-}
-
-static char **tg_cli_completion(const char *text, int start, int end) {
-  char **matches = nullptr;
-  if (start == 0) {
-    matches = rl_completion_matches(text, command_generator);
-  }
-  return matches;
-}
-#endif
-
-class CliLog final : public LogInterface {
-  void do_append(int log_level, CSlice slice) final {
-#ifdef USE_READLINE
-    deactivate_readline();
-    SCOPE_EXIT {
-      reactivate_readline();
-    };
-#endif
-    default_log_interface->do_append(log_level, slice);
-  }
-};
-
-static CombinedLog combined_log;
-
-struct SendMessageInfo {
-  double start_time = 0;
-  double quick_ack_time = 0;
-  double ack_time = 0;
-  bool empty() const {
-    return quick_ack_time != 0 || ack_time != 0;
-  }
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const SendMessageInfo &info) {
-  sb << format::cond(info.quick_ack_time != 0, tag("quick_ack", info.quick_ack_time - info.start_time));
-  sb << format::cond(info.ack_time != 0, tag("ack", info.ack_time - info.start_time));
-  return sb;
-}
-
-class CliClient final : public Actor {
- public:
-  CliClient(ConcurrentScheduler *scheduler, bool use_test_dc, bool get_chat_list, bool disable_network, int32 api_id,
-            string api_hash)
-      : scheduler_(scheduler)
-      , use_test_dc_(use_test_dc)
-      , get_chat_list_(get_chat_list)
-      , disable_network_(disable_network)
-      , api_id_(api_id)
-      , api_hash_(std::move(api_hash)) {
-  }
-
-  static void quit_instance() {
-    instance_->quit();
-  }
-
- private:
-  void start_up() final {
-    yield();
-  }
-
-  FlatHashMap<uint64, SendMessageInfo> query_id_to_send_message_info_;
-  FlatHashMap<uint64, SendMessageInfo> message_id_to_send_message_info_;
-
-  struct User {
-    string first_name;
-    string last_name;
-    string username;
-  };
-
-  FlatHashMap<int64, unique_ptr<User>> users_;
-  FlatHashMap<string, int64> username_to_user_id_;
-
-  vector<string> authentication_tokens_;
-
-  void register_user(const td_api::user &user) {
-    auto &new_user_ptr = users_[user.id_];
-    if (new_user_ptr == nullptr) {
-      new_user_ptr = make_unique<User>();
-    }
-    User &new_user = *new_user_ptr;
-    new_user.first_name = user.first_name_;
-    new_user.last_name = user.last_name_;
-    if (user.usernames_ != nullptr) {
-      for (auto &username : user.usernames_->active_usernames_) {
-        username_to_user_id_[to_lower(username)] = user.id_;
-      }
-    }
-  }
-
-  void print_user(Logger &log, int64 user_id, bool full = false) {
-    const User *user = users_[user_id].get();
-    CHECK(user != nullptr);
-    log << user->first_name << " " << user->last_name << " #" << user_id;
-  }
-
-  void update_users(const td_api::users &users) {
-    Logger log{*log_interface, LogOptions::plain(), VERBOSITY_NAME(PLAIN)};
-    for (auto &user_id : users.user_ids_) {
-      if (user_id == 0) {
-        continue;
-      }
-      print_user(log, user_id);
-      log << "\n";
-    }
-  }
-
-  FlatHashMap<string, int64> username_to_supergroup_id_;
-  void register_supergroup(const td_api::supergroup &supergroup) {
-    if (supergroup.usernames_ != nullptr) {
-      for (auto &username : supergroup.usernames_->active_usernames_) {
-        username_to_supergroup_id_[to_lower(username)] = supergroup.id_;
-      }
-    }
-  }
-
-  void update_option(const td_api::updateOption &option) {
-    if (option.name_ == "my_id" && option.value_->get_id() == td_api::optionValueInteger::ID) {
-      my_id_ = static_cast<const td_api::optionValueInteger *>(option.value_.get())->value_;
-      LOG(INFO) << "Set my user identifier to " << my_id_;
-    }
-    if (option.name_ == "authentication_token" && option.value_->get_id() == td_api::optionValueString::ID) {
-      authentication_tokens_.insert(authentication_tokens_.begin(),
-                                    static_cast<const td_api::optionValueString *>(option.value_.get())->value_);
-    }
-  }
-
-  int64 get_log_chat_id_ = 0;
-  void on_get_chat_events(const td_api::chatEvents &events) {
-    if (get_log_chat_id_ != 0) {
-      int64 last_event_id = 0;
-      for (auto &event : events.events_) {
-        if (event->member_id_->get_id() == td_api::messageSenderUser::ID) {
-          LOG(PLAIN) << event->date_ << ' '
-                     << static_cast<const td_api::messageSenderUser &>(*event->member_id_).user_id_;
-        }
-        last_event_id = event->id_;
-      }
-
-      if (last_event_id > 0) {
-        send_request(
-            td_api::make_object<td_api::getChatEventLog>(get_log_chat_id_, "", last_event_id, 100, nullptr, Auto()));
-      } else {
-        get_log_chat_id_ = 0;
-      }
-    }
-  }
-
-  int64 get_history_chat_id_ = 0;
-  int64 search_chat_id_ = 0;
-  void on_get_messages(const td_api::messages &messages) {
-    if (get_history_chat_id_ != 0) {
-      int64 last_message_id = 0;
-      int32 last_message_date = 0;
-      for (auto &m : messages.messages_) {
-        // LOG(PLAIN) << to_string(m);
-        if (m->content_->get_id() == td_api::messageText::ID) {
-          LOG(PLAIN) << oneline(static_cast<const td_api::messageText *>(m->content_.get())->text_->text_) << "\n";
-        }
-        last_message_id = m->id_;
-        last_message_date = m->date_;
-      }
-
-      if (last_message_id > 0 && last_message_date > 1660000000) {
-        send_request(td_api::make_object<td_api::getChatHistory>(get_history_chat_id_, last_message_id, 0, 100, false));
-      } else {
-        get_history_chat_id_ = 0;
-      }
-    }
-    if (search_chat_id_ != 0) {
-      if (!messages.messages_.empty()) {
-        auto last_message_id = messages.messages_.back()->id_;
-        LOG(ERROR) << (last_message_id >> 20);
-        send_request(td_api::make_object<td_api::searchChatMessages>(
-            search_chat_id_, string(), nullptr, last_message_id, 0, 100, as_search_messages_filter("pvi"), 0,
-            get_saved_messages_topic_id()));
-      } else {
-        search_chat_id_ = 0;
-      }
-    }
-  }
-
-  void on_get_message(const td_api::message &message) {
-    if (message.sending_state_ != nullptr &&
-        message.sending_state_->get_id() == td_api::messageSendingStatePending::ID) {
-      // send_request(td_api::make_object<td_api::deleteMessages>(message.chat_id_, vector<int64>{message.id_}, true));
-    }
-  }
-
-  void on_get_file(const td_api::file &file) {
-    if (being_downloaded_files_.count(file.id_) == 0 && file.local_->is_downloading_active_) {
-      being_downloaded_files_[file.id_] = Time::now();
-    }
-
-    if (being_downloaded_files_.count(file.id_) != 0 && !file.local_->is_downloading_active_) {
-      double elapsed_time = Time::now() - being_downloaded_files_[file.id_];
-      being_downloaded_files_.erase(file.id_);
-      if (file.local_->is_downloading_completed_) {
-        LOG(ERROR) << "File " << file.id_ << " was downloaded in " << elapsed_time << " seconds";
-      } else {
-        LOG(ERROR) << "File " << file.id_ << " has failed to download in " << elapsed_time << " seconds";
-      }
-    }
-  }
-
-  struct FileGeneration {
-    int64 id = 0;
-    string destination;
-    string source;
-    int64 part_size = 0;
-    int64 local_size = 0;
-    int64 size = 0;
-    bool test_local_size_decrease = false;
-  };
-
-  vector<FileGeneration> pending_file_generations_;
-
-  void on_file_generation_start(const td_api::updateFileGenerationStart &update) {
-    FileGeneration file_generation;
-    file_generation.id = update.generation_id_;
-    file_generation.destination = update.destination_path_;
-    if (update.conversion_ == "#url#" || update.conversion_ == "url") {
-      // TODO: actually download
-      file_generation.source = "test.jpg";
-      file_generation.part_size = 1000000;
-    } else if (update.conversion_ == "skip") {
-      return;
-    } else {
-      file_generation.source = update.original_path_;
-      file_generation.part_size = to_integer<int64>(update.conversion_);
-      file_generation.test_local_size_decrease = !update.conversion_.empty() && update.conversion_.back() == 't';
-    }
-
-    auto r_stat = stat(file_generation.source);
-    if (r_stat.is_ok()) {
-      auto size = r_stat.ok().size_;
-      if (size <= 0 || size > (static_cast<int64>(4000) << 20)) {
-        r_stat = Status::Error(400, size == 0 ? Slice("File is empty") : Slice("File is too big"));
-      }
-    }
-    if (r_stat.is_ok()) {
-      file_generation.size = narrow_cast<int32>(r_stat.ok().size_);
-      if (file_generation.part_size <= 0) {
-        file_generation.part_size = file_generation.size;
-      }
-      pending_file_generations_.push_back(std::move(file_generation));
-      timeout_expired();
-    } else {
-      send_request(td_api::make_object<td_api::finishFileGeneration>(
-          update.generation_id_, td_api::make_object<td_api::error>(400, r_stat.error().message().str())));
-    }
-  }
-
-  void on_update_authorization_state(td_api::object_ptr<td_api::AuthorizationState> &&state) {
-    authorization_state_ = std::move(state);
-    switch (authorization_state_->get_id()) {
-      case td_api::authorizationStateWaitTdlibParameters::ID: {
-        auto request = td_api::make_object<td_api::setTdlibParameters>();
-        // request->database_encryption_key_ = "!";
-        request->use_test_dc_ = use_test_dc_;
-        request->use_message_database_ = true;
-        request->use_chat_info_database_ = true;
-        request->use_secret_chats_ = true;
-        request->api_id_ = api_id_;
-        request->api_hash_ = api_hash_;
-        request->system_language_code_ = "en";
-        request->device_model_ = "Desktop";
-        request->application_version_ = "1.0";
-        send_request(
-            td_api::make_object<td_api::setOption>("use_pfs", td_api::make_object<td_api::optionValueBoolean>(true)));
-        send_request(std::move(request));
-        break;
-      }
-      case td_api::authorizationStateReady::ID:
-        LOG(INFO) << "Logged in";
-        break;
-      case td_api::authorizationStateClosed::ID:
-        LOG(WARNING) << "Td closed";
-        td_client_.reset();
-        if (!close_flag_) {
-          create_td("ClientActor3");
-        }
-        break;
-      default:
-        break;
-    }
-  }
-
-  static char get_delimiter(Slice str) {
-    FlatHashSet<char> chars;
-    for (auto c : trim(str)) {
-      if (!is_alnum(c) && c != '_' && c != '-' && c != '@' && c != '.' && c != '/' && c != '\0' && c != '$' &&
-          static_cast<uint8>(c) <= 127) {
-        chars.insert(c);
-      }
-    }
-    if (chars.empty()) {
-      return ' ';
-    }
-    if (chars.size() == 1) {
-      return *chars.begin();
-    }
-    LOG(ERROR) << "Failed to determine delimiter in \"" << str << '"';
-    return ' ';
-  }
-
-  static vector<Slice> autosplit(Slice str) {
-    return full_split(trim(str), get_delimiter(str));
-  }
-
-  static vector<string> autosplit_str(Slice str) {
-    return transform(autosplit(str), [](Slice slice) { return slice.str(); });
-  }
-
-  int64 as_chat_id(Slice str) const {
-    str = trim(str);
-    if (str == "me") {
-      return my_id_;
-    }
-    if (str == ".") {
-      return opened_chat_id_;
-    }
-    if (str[0] == '@') {
-      str.remove_prefix(1);
-    }
-    if (is_alpha(str[0])) {
-      auto it = username_to_user_id_.find(to_lower(str));
-      if (it != username_to_user_id_.end()) {
-        return it->second;
-      }
-      auto it2 = username_to_supergroup_id_.find(to_lower(str));
-      if (it2 != username_to_supergroup_id_.end()) {
-        auto supergroup_id = it2->second;
-        return static_cast<int64>(-1000'000'000'000ll) - supergroup_id;
-      }
-      LOG(ERROR) << "Can't resolve " << str;
-      return 0;
-    }
-    return to_integer<int64>(str);
-  }
-
-  static int32 as_chat_folder_id(Slice str) {
-    return to_integer<int32>(trim(str));
-  }
-
-  static vector<int32> as_chat_folder_ids(Slice chat_folder_ids) {
-    return transform(autosplit(chat_folder_ids), as_chat_folder_id);
-  }
-
-  static td_api::object_ptr<td_api::ChatList> as_chat_list(string chat_list) {
-    if (!chat_list.empty() && chat_list.back() == 'a') {
-      return td_api::make_object<td_api::chatListArchive>();
-    }
-    if (chat_list.find('-') != string::npos) {
-      return td_api::make_object<td_api::chatListFolder>(as_chat_folder_id(chat_list.substr(chat_list.find('-') + 1)));
-    }
-    return td_api::make_object<td_api::chatListMain>();
-  }
-
-  static td_api::object_ptr<td_api::StoryList> as_story_list(string story_list) {
-    if (story_list.empty() || story_list.back() == 'e') {
-      return nullptr;
-    }
-    if (story_list.back() == 'a') {
-      return td_api::make_object<td_api::storyListArchive>();
-    }
-    return td_api::make_object<td_api::storyListMain>();
-  }
-
-  static td_api::object_ptr<td_api::BlockList> as_block_list(string block_list) {
-    if (block_list.empty()) {
-      return nullptr;
-    }
-    if (block_list.back() == 's') {
-      return td_api::make_object<td_api::blockListStories>();
-    }
-    return td_api::make_object<td_api::blockListMain>();
-  }
-
-  vector<int64> as_chat_ids(Slice chat_ids) const {
-    return transform(autosplit(chat_ids), [this](Slice str) { return as_chat_id(str); });
-  }
-
-  static int64 as_message_id(Slice str) {
-    str = trim(str);
-    if (!str.empty() && str.back() == 's') {
-      return to_integer<int64>(str) << 20;
-    }
-    return to_integer<int64>(str);
-  }
-
-  static vector<int64> as_message_ids(Slice message_ids) {
-    return transform(autosplit(message_ids), as_message_id);
-  }
-
-  static int64 as_message_thread_id(Slice str) {
-    return as_message_id(str);
-  }
-
-  static vector<int64> as_message_thread_ids(Slice str) {
-    return as_message_ids(str);
-  }
-
-  td_api::object_ptr<td_api::MessageSender> as_message_sender(Slice sender_id) const {
-    sender_id = trim(sender_id);
-    auto user_id = as_user_id(sender_id, true);
-    if (sender_id.empty() || user_id > 0) {
-      return td_api::make_object<td_api::messageSenderUser>(user_id);
-    } else {
-      return td_api::make_object<td_api::messageSenderChat>(as_chat_id(sender_id));
-    }
-  }
-
-  static int32 as_story_id(Slice str) {
-    return to_integer<int32>(trim(str));
-  }
-
-  td_api::object_ptr<td_api::businessRecipients> as_business_recipients(string chat_ids) const {
-    return td_api::make_object<td_api::businessRecipients>(as_chat_ids(chat_ids), vector<int64>(), false, false, false,
-                                                           false, true);
-  }
-
-  static td_api::object_ptr<td_api::StickerFormat> as_sticker_format(string sticker_format) {
-    if (!sticker_format.empty() && sticker_format.back() == 'a') {
-      return td_api::make_object<td_api::stickerFormatTgs>();
-    }
-    if (!sticker_format.empty() && sticker_format.back() == 'v') {
-      return td_api::make_object<td_api::stickerFormatWebm>();
-    }
-    return td_api::make_object<td_api::stickerFormatWebp>();
-  }
-
-  static td_api::object_ptr<td_api::StickerType> as_sticker_type(string sticker_type) {
-    if (!sticker_type.empty() && sticker_type.back() == 'e') {
-      return td_api::make_object<td_api::stickerTypeCustomEmoji>();
-    }
-    if (!sticker_type.empty() && sticker_type.back() == 'm') {
-      return td_api::make_object<td_api::stickerTypeMask>();
-    }
-    return Random::fast_bool() ? nullptr : td_api::make_object<td_api::stickerTypeRegular>();
-  }
-
-  static td_api::object_ptr<td_api::maskPosition> as_mask_position(string sticker_type) {
-    if (!sticker_type.empty() && sticker_type.back() == 'm') {
-      auto position = td_api::make_object<td_api::maskPosition>(td_api::make_object<td_api::maskPointEyes>(),
-                                                                Random::fast(-5, 5), Random::fast(-5, 5), 1.0);
-      return Random::fast_bool() ? nullptr : std::move(position);
-    }
-    return nullptr;
-  }
-
-  static int32 as_limit(Slice str, int32 default_limit = 10) {
-    if (str.empty()) {
-      return default_limit;
-    }
-    return to_integer<int32>(trim(str));
-  }
-
-  int64 as_user_id(Slice str, bool expect_error = false) const {
-    str = trim(str);
-    if (str == "me") {
-      return my_id_;
-    }
-    if (str == ".") {
-      return opened_chat_id_;
-    }
-    if (str[0] == '@') {
-      str.remove_prefix(1);
-    }
-    if (is_alpha(str[0])) {
-      auto it = username_to_user_id_.find(to_lower(str));
-      if (it != username_to_user_id_.end()) {
-        return it->second;
-      }
-      if (!expect_error) {
-        LOG(ERROR) << "Can't find user " << str;
-      }
-      return 0;
-    }
-    return to_integer<int64>(str);
-  }
-
-  vector<int64> as_user_ids(Slice user_ids) const {
-    return transform(autosplit(user_ids), [this](Slice str) { return as_user_id(str); });
-  }
-
-  int64 as_basic_group_id(Slice str) const {
-    str = trim(str);
-    auto result = to_integer<int64>(str);
-    if (str == ".") {
-      result = opened_chat_id_;
-    }
-    if (result < 0) {
-      return -result;
-    }
-    return result;
-  }
-
-  int64 as_supergroup_id(Slice str) const {
-    str = trim(str);
-    if (str[0] == '@') {
-      str.remove_prefix(1);
-    }
-    if (is_alpha(str[0])) {
-      auto it = username_to_supergroup_id_.find(to_lower(str));
-      if (it == username_to_supergroup_id_.end()) {
-        return 0;
-      }
-      return it->second;
-    }
-    auto result = to_integer<int64>(str);
-    if (str == ".") {
-      result = opened_chat_id_;
-    }
-    auto shift = static_cast<int64>(-1000000000000ll);
-    if (result <= shift) {
-      return shift - result;
-    }
-    return result;
-  }
-
-  int32 as_secret_chat_id(Slice str) const {
-    str = trim(str);
-    auto result = to_integer<int64>(str);
-    if (str == ".") {
-      result = opened_chat_id_;
-    }
-    auto shift = static_cast<int64>(-2000000000000ll);
-    if (result <= shift + std::numeric_limits<int32>::max()) {
-      return static_cast<int32>(result - shift);
-    }
-    return static_cast<int32>(result);
-  }
-
-  static int32 as_file_id(Slice str) {
-    return to_integer<int32>(trim(str));
-  }
-
-  static vector<int32> as_file_ids(Slice str) {
-    return transform(autosplit(str), as_file_id);
-  }
-
-  static td_api::object_ptr<td_api::InputFile> as_input_file_id(Slice str) {
-    return td_api::make_object<td_api::inputFileId>(as_file_id(str));
-  }
-
-  static td_api::object_ptr<td_api::InputFile> as_local_file(string path) {
-    return td_api::make_object<td_api::inputFileLocal>(trim(std::move(path)));
-  }
-
-  static td_api::object_ptr<td_api::InputFile> as_remote_file(string id) {
-    return td_api::make_object<td_api::inputFileRemote>(trim(std::move(id)));
-  }
-
-  static td_api::object_ptr<td_api::InputFile> as_generated_file(string original_path, string conversion,
-                                                                 int64 expected_size = 0) {
-    return td_api::make_object<td_api::inputFileGenerated>(trim(std::move(original_path)), trim(std::move(conversion)),
-                                                           expected_size);
-  }
-
-  static td_api::object_ptr<td_api::InputFile> as_input_file(Slice str) {
-    str = trim(str);
-    if ((str.size() >= 20 && is_base64url(str)) || begins_with(str, "http")) {
-      return as_remote_file(str.str());
-    }
-    auto r_file_id = to_integer_safe<int32>(str);
-    if (r_file_id.is_ok()) {
-      return as_input_file_id(str);
-    }
-    if (str.find(';') < str.size()) {
-      auto res = split(str, ';');
-      return as_generated_file(res.first.str(), res.second.str());
-    }
-    return as_local_file(str.str());
-  }
-
-  td_api::object_ptr<td_api::formattedText> get_caption() const {
-    if (caption_.empty()) {
-      return nullptr;
-    }
-    return as_caption(caption_);
-  }
-
-  td_api::object_ptr<td_api::InputFile> get_input_cover() const {
-    if (cover_.empty()) {
-      return nullptr;
-    }
-    return as_input_file(cover_);
-  }
-
-  td_api::object_ptr<td_api::inputThumbnail> get_input_thumbnail() const {
-    if (thumbnail_.empty()) {
-      return nullptr;
-    }
-    return td_api::make_object<td_api::inputThumbnail>(as_input_file(thumbnail_), 0, 0);
-  }
-
-  vector<int32> get_added_sticker_file_ids() const {
-    return added_sticker_file_ids_;
-  }
-
-  struct CallId {
-    int32 call_id = 0;
-
-    operator int32() const {
-      return call_id;
-    }
-  };
-
-  void get_args(string &args, CallId &arg) const {
-    arg.call_id = to_integer<int32>(trim(args));
-  }
-
-  struct GroupCallId {
-    int32 group_call_id = 0;
-
-    operator int32() const {
-      return group_call_id;
-    }
-  };
-
-  void get_args(string &args, GroupCallId &arg) const {
-    arg.group_call_id = to_integer<int32>(trim(args));
-  }
-
-  static int32 as_proxy_id(string str) {
-    return to_integer<int32>(trim(std::move(str)));
-  }
-
-  static int64 as_custom_emoji_id(Slice str) {
-    return to_integer<int64>(trim(str));
-  }
-
-  static td_api::object_ptr<td_api::location> as_location(const string &latitude, const string &longitude,
-                                                          const string &accuracy) {
-    if (trim(latitude).empty() && trim(longitude).empty()) {
-      return nullptr;
-    }
-    return td_api::make_object<td_api::location>(to_double(latitude), to_double(longitude), to_double(accuracy));
-  }
-
-  static td_api::object_ptr<td_api::ReactionType> as_reaction_type(Slice type) {
-    type = trim(type);
-    if (type.empty()) {
-      return nullptr;
-    }
-    if (type == "$") {
-      return td_api::make_object<td_api::reactionTypePaid>();
-    }
-    auto r_custom_emoji_id = to_integer_safe<int64>(type);
-    if (r_custom_emoji_id.is_ok()) {
-      return td_api::make_object<td_api::reactionTypeCustomEmoji>(r_custom_emoji_id.ok());
-    }
-    return td_api::make_object<td_api::reactionTypeEmoji>(type.str());
-  }
-
-  static bool as_bool(string str) {
-    str = to_lower(trim(str));
-    return str == "true" || str == "1";
-  }
-
-  template <class T>
-  static vector<T> to_integers(Slice integers) {
-    return transform(transform(autosplit(integers), trim<Slice>), to_integer<T>);
-  }
-
-  static void get_args(string &args, string &arg) {
-    if (&args != &arg) {
-      arg = std::move(args);
-    }
-  }
-
-  static void get_args(string &args, bool &arg) {
-    arg = as_bool(args);
-  }
-
-  struct SearchQuery {
-    int32 limit = 0;
-    string query;
-  };
-
-  static void get_args(string &args, SearchQuery &arg) {
-    string limit;
-    std::tie(limit, arg.query) = split(trim(args));
-    auto r_limit = to_integer_safe<int32>(limit);
-    if (r_limit.is_ok() && r_limit.ok() > 0) {
-      arg.limit = r_limit.ok();
-    } else {
-      arg.limit = 10;
-      arg.query = std::move(args);
-    }
-    args.clear();
-  }
-
-  static void get_args(string &args, int32 &arg) {
-    arg = to_integer<int32>(args);
-  }
-
-  static void get_args(string &args, int64 &arg) {
-    arg = to_integer<int64>(args);
-  }
-
-  static void get_args(string &args, double &arg) {
-    arg = to_double(args);
-  }
-
-  struct ChatId {
-    int64 chat_id = 0;
-
-    operator int64() const {
-      return chat_id;
-    }
-  };
-
-  void get_args(string &args, ChatId &arg) const {
-    arg.chat_id = as_chat_id(args);
-  }
-
-  struct MessageId {
-    int64 message_id = 0;
-
-    operator int64() const {
-      return message_id;
-    }
-  };
-
-  void get_args(string &args, MessageId &arg) const {
-    arg.message_id = as_message_id(args);
-  }
-
-  struct MessageThreadId {
-    int64 message_thread_id = 0;
-
-    operator int64() const {
-      return message_thread_id;
-    }
-  };
-
-  void get_args(string &args, MessageThreadId &arg) const {
-    arg.message_thread_id = as_message_thread_id(args);
-  }
-
-  struct UserId {
-    int64 user_id = 0;
-
-    operator int64() const {
-      return user_id;
-    }
-  };
-
-  void get_args(string &args, UserId &arg) const {
-    arg.user_id = as_user_id(args);
-  }
-
-  struct ChatFolderId {
-    int32 chat_folder_id = 0;
-
-    operator int32() const {
-      return chat_folder_id;
-    }
-  };
-
-  void get_args(string &args, ChatFolderId &arg) const {
-    arg.chat_folder_id = as_chat_folder_id(args);
-  }
-
-  struct StoryId {
-    int32 story_id = 0;
-
-    operator int32() const {
-      return story_id;
-    }
-  };
-
-  void get_args(string &args, StoryId &arg) const {
-    arg.story_id = as_story_id(args);
-  }
-
-  struct FileId {
-    int32 file_id = 0;
-
-    operator int32() const {
-      return file_id;
-    }
-  };
-
-  void get_args(string &args, FileId &arg) const {
-    arg.file_id = as_file_id(args);
-  }
-
-  struct ShortcutId {
-    int32 shortcut_id = 0;
-
-    operator int32() const {
-      return shortcut_id;
-    }
-  };
-
-  void get_args(string &args, ShortcutId &arg) const {
-    arg.shortcut_id = as_shortcut_id(args);
-  }
-
-  static int32 as_shortcut_id(Slice str) {
-    return to_integer<int32>(trim(str));
-  }
-
-  vector<int32> as_shortcut_ids(Slice shortcut_ids) const {
-    return transform(autosplit(shortcut_ids), as_shortcut_id);
-  }
-
-  td_api::object_ptr<td_api::InputMessageReplyTo> get_input_message_reply_to() const {
-    if (reply_message_id_ != 0) {
-      td_api::object_ptr<td_api::inputTextQuote> quote;
-      if (!reply_quote_.empty()) {
-        quote = td_api::make_object<td_api::inputTextQuote>(as_formatted_text(reply_quote_), reply_quote_position_);
-      }
-      if (reply_chat_id_ == 0) {
-        return td_api::make_object<td_api::inputMessageReplyToMessage>(reply_message_id_, std::move(quote));
-      }
-      return td_api::make_object<td_api::inputMessageReplyToExternalMessage>(reply_chat_id_, reply_message_id_,
-                                                                             std::move(quote));
-    }
-    if (reply_story_chat_id_ != 0 || reply_story_id_ != 0) {
-      return td_api::make_object<td_api::inputMessageReplyToStory>(reply_story_chat_id_, reply_story_id_);
-    }
-    return nullptr;
-  }
-
-  td_api::object_ptr<td_api::storyFullId> get_reposted_story_full_id() const {
-    if (reposted_story_chat_id_ || reposted_story_id_) {
-      return td_api::make_object<td_api::storyFullId>(reposted_story_chat_id_, reposted_story_id_);
-    }
-    return nullptr;
-  }
-
-  int64 as_saved_messages_topic_id(int64 saved_messages_topic_id) const {
-    if (saved_messages_topic_id == -1) {
-      return 2666000;
-    }
-    return saved_messages_topic_id;
-  }
-
-  int64 get_saved_messages_topic_id() const {
-    return as_saved_messages_topic_id(saved_messages_topic_id_);
-  }
-
-  td_api::object_ptr<td_api::linkPreviewOptions> get_link_preview_options() const {
-    if (!link_preview_is_disabled_ && link_preview_url_.empty() && !link_preview_force_small_media_ &&
-        !link_preview_force_large_media_ && !link_preview_show_above_text_) {
-      return nullptr;
-    }
-    return td_api::make_object<td_api::linkPreviewOptions>(
-        link_preview_is_disabled_, link_preview_url_, link_preview_force_small_media_, link_preview_force_large_media_,
-        link_preview_show_above_text_);
-  }
-
-  struct ReportReason {
-    string report_reason;
-
-    operator td_api::object_ptr<td_api::ReportReason>() const {
-      return as_report_reason(report_reason);
-    }
-  };
-
-  void get_args(string &args, ReportReason &arg) const {
-    arg.report_reason = std::move(args);
-  }
-
-  struct InputInvoice {
-    int64 chat_id = 0;
-    int64 message_id = 0;
-    string invoice_name;
-    string invite_link;
-    string gift_codes;
-
-    operator td_api::object_ptr<td_api::InputInvoice>() const {
-      if (!invite_link.empty()) {
-        return td_api::make_object<td_api::inputInvoiceTelegram>(
-            td_api::make_object<td_api::telegramPaymentPurposeJoinChat>(invite_link));
-      } else if (!invoice_name.empty()) {
-        return td_api::make_object<td_api::inputInvoiceName>(invoice_name);
-      } else if (!gift_codes.empty()) {
-        string user_id;
-        string amount;
-        string month_count;
-        string text;
-        std::tie(user_id, text) = split(gift_codes, ',');
-        std::tie(amount, text) = split(text, ',');
-        std::tie(month_count, text) = split(text, ',');
-        return td_api::make_object<td_api::inputInvoiceTelegram>(
-            td_api::make_object<td_api::telegramPaymentPurposePremiumGift>(
-                "XTR", to_integer<int64>(amount), to_integer<int64>(user_id), to_integer<int32>(month_count),
-                as_formatted_text(text)));
-      } else {
-        return td_api::make_object<td_api::inputInvoiceMessage>(chat_id, message_id);
-      }
-    }
-  };
-
-  void get_args(string &args, InputInvoice &arg) const {
-    if (args.size() > 1 && (args[0] == '#' || args[0] == '$')) {
-      arg.invoice_name = args.substr(1);
-    } else if (args[0] == '+' || begins_with(args, "https://t.me/+")) {
-      arg.invite_link = args;
-    } else if (args.size() > 1 && args[0] == '%') {
-      arg.gift_codes = args.substr(1);
-    } else {
-      string chat_id;
-      string message_id;
-      std::tie(chat_id, message_id) = split(args, get_delimiter(args));
-      arg.chat_id = as_chat_id(chat_id);
-      arg.message_id = as_message_id(message_id);
-    }
-  }
-
-  struct GiveawayParameters {
-    int64 chat_id = 0;
-    vector<int64> additional_chat_ids;
-    int32 date;
-    vector<string> country_codes;
-
-    operator td_api::object_ptr<td_api::giveawayParameters>() const {
-      if (chat_id == 0) {
-        return nullptr;
-      }
-      return td_api::make_object<td_api::giveawayParameters>(chat_id, vector<int64>(additional_chat_ids), date,
-                                                             rand_bool(), rand_bool(), vector<string>(country_codes),
-                                                             "prize");
-    }
-  };
-
-  void get_args(string &args, GiveawayParameters &arg) const {
-    auto parts = autosplit(args);
-    if (args.size() < 3) {
-      return;
-    }
-    arg.chat_id = as_chat_id(parts[0]);
-    arg.date = to_integer<int32>(parts[parts.size() - 2]);
-    arg.country_codes.push_back(parts[parts.size() - 1].str());
-    for (size_t i = 1; i + 2 < parts.size(); i++) {
-      arg.additional_chat_ids.push_back(as_chat_id(parts[i]));
-    }
-  }
-
-  struct ChatPhotoSticker {
-    int64 sticker_set_id = 0;
-    int64 sticker_id = 0;
-
-    operator td_api::object_ptr<td_api::chatPhotoSticker>() const {
-      if (sticker_set_id != 0) {
-        return td_api::make_object<td_api::chatPhotoSticker>(
-            td_api::make_object<td_api::chatPhotoStickerTypeRegularOrMask>(sticker_set_id, sticker_id),
-            as_background_fill(0x7FFFFFFF));
-      } else {
-        return td_api::make_object<td_api::chatPhotoSticker>(
-            td_api::make_object<td_api::chatPhotoStickerTypeCustomEmoji>(sticker_id),
-            as_background_fill({0x000000, 0xFF0000, 0x00FF00, 0x0000FF}));
-      }
-    }
-  };
-
-  void get_args(string &args, ChatPhotoSticker &arg) const {
-    string sticker_set_id;
-    string sticker_id;
-    std::tie(sticker_set_id, sticker_id) = split(args, get_delimiter(args));
-    if (sticker_id.empty()) {
-      arg.sticker_id = to_integer<int64>(sticker_set_id);
-    } else {
-      arg.sticker_set_id = to_integer<int64>(sticker_set_id);
-      arg.sticker_id = to_integer<int64>(sticker_id);
-    }
-  }
-
-  struct InputChatPhoto {
-    enum class Type : int32 { Null, Previous, Static, Animation, Sticker };
-    Type type = Type::Null;
-    int64 profile_photo_id = 0;
-    string photo;
-    string main_frame_timestamp;
-    ChatPhotoSticker sticker;
-
-    operator td_api::object_ptr<td_api::InputChatPhoto>() const {
-      switch (type) {
-        case Type::Null:
-          return nullptr;
-        case Type::Previous:
-          return td_api::make_object<td_api::inputChatPhotoPrevious>(profile_photo_id);
-        case Type::Static:
-          return td_api::make_object<td_api::inputChatPhotoStatic>(as_input_file(photo));
-        case Type::Animation:
-          return td_api::make_object<td_api::inputChatPhotoAnimation>(as_input_file(photo),
-                                                                      to_double(main_frame_timestamp));
-        case Type::Sticker:
-          return td_api::make_object<td_api::inputChatPhotoSticker>(sticker);
-        default:
-          UNREACHABLE();
-          return nullptr;
-      }
-    }
-  };
-
-  void get_args(string &args, InputChatPhoto &arg) const {
-    args = trim(args);
-    if (args.empty()) {
-      return;
-    }
-    if (to_integer_safe<int64>(args).is_ok()) {
-      arg.type = InputChatPhoto::Type::Previous;
-      arg.profile_photo_id = to_integer<int64>(args);
-    } else if (args[0] == 'p') {
-      arg.type = InputChatPhoto::Type::Static;
-      arg.photo = args.substr(1);
-    } else if (args[0] == 'a') {
-      arg.type = InputChatPhoto::Type::Animation;
-      std::tie(arg.photo, arg.main_frame_timestamp) = split(args.substr(1), get_delimiter(args));
-    } else if (args[0] == 's') {
-      arg.type = InputChatPhoto::Type::Sticker;
-      args = args.substr(1);
-      get_args(args, arg.sticker);
-    } else {
-      LOG(ERROR) << "Invalid InputChatPhoto = " << args;
-    }
-  }
-
-  struct CustomEmojiId {
-    int64 custom_emoji_id = 0;
-
-    operator int64() const {
-      return custom_emoji_id;
-    }
-  };
-
-  void get_args(string &args, CustomEmojiId &arg) const {
-    arg.custom_emoji_id = as_custom_emoji_id(args);
-  }
-
-  struct AffiliateType {
-    int64 id = 0;
-
-    operator td_api::object_ptr<td_api::AffiliateType>() const {
-      if (id == 0) {
-        return td_api::make_object<td_api::affiliateTypeCurrentUser>();
-      }
-      if (id > 0) {
-        return td_api::make_object<td_api::affiliateTypeBot>(id);
-      }
-      return td_api::make_object<td_api::affiliateTypeChannel>(id);
-    }
-  };
-
-  void get_args(string &args, AffiliateType &arg) const {
-    arg.id = as_chat_id(args);
-    if (arg.id == my_id_) {
-      arg.id = 0;
-    }
-  }
-
-  struct InputBackground {
-    string background_file;
-    // or
-    int64 background_id = 0;
-    // or
-    int64 message_id = 0;
-
-    operator td_api::object_ptr<td_api::InputBackground>() const {
-      if (!background_file.empty()) {
-        return td_api::make_object<td_api::inputBackgroundLocal>(as_input_file(background_file));
-      }
-      if (background_id != 0) {
-        return td_api::make_object<td_api::inputBackgroundRemote>(background_id);
-      }
-      if (message_id != 0) {
-        return td_api::make_object<td_api::inputBackgroundPrevious>(message_id);
-      }
-      return nullptr;
-    }
-  };
-
-  void get_args(string &args, InputBackground &arg) const {
-    args = trim(args);
-    if (args.empty()) {
-      return;
-    }
-    if (to_integer_safe<int64>(args).is_ok()) {
-      arg.background_id = to_integer<int64>(args);
-    } else if (args.back() == 's' && to_integer_safe<int32>(args.substr(0, args.size() - 1)).is_ok()) {
-      arg.message_id = as_message_id(args);
-    } else {
-      arg.background_file = std::move(args);
-    }
-  }
-
-  struct BackgroundType {
-    enum class Type : int32 {
-      Null,
-      Wallpaper,
-      SolidPattern,
-      GradientPattern,
-      FreeformGradientPattern,
-      Fill,
-      ChatTheme
-    };
-    Type type = Type::Null;
-    vector<int32> colors;
-    string theme_name;
-
-    operator td_api::object_ptr<td_api::BackgroundType>() const {
-      switch (type) {
-        case Type::Null:
-          return nullptr;
-        case Type::Wallpaper:
-          return as_wallpaper_background(rand_bool(), rand_bool());
-        case Type::SolidPattern:
-          return as_solid_pattern_background(0xABCDef, 49, true);
-        case Type::GradientPattern:
-          return as_gradient_pattern_background(0xABCDEF, 0xFE, 51, rand_bool(), false);
-        case Type::FreeformGradientPattern:
-          return as_freeform_gradient_pattern_background({0xABCDEF, 0xFE, 0xFF0000}, 52, rand_bool(), rand_bool());
-        case Type::Fill:
-          if (colors.size() == 1) {
-            return as_solid_background(colors[0]);
-          }
-          if (colors.size() == 2) {
-            return as_gradient_background(colors[0], colors[1]);
-          }
-          return as_freeform_gradient_background(colors);
-        case Type::ChatTheme:
-          return as_chat_theme_background(theme_name);
-        default:
-          UNREACHABLE();
-          return nullptr;
-      }
-    }
-  };
-
-  void get_args(string &args, BackgroundType &arg) const {
-    args = trim(args);
-    if (args.empty()) {
-      return;
-    }
-    if (args == "w") {
-      arg.type = BackgroundType::Type::Wallpaper;
-    } else if (args == "sp") {
-      arg.type = BackgroundType::Type::SolidPattern;
-    } else if (args == "gp") {
-      arg.type = BackgroundType::Type::GradientPattern;
-    } else if (args == "fgp") {
-      arg.type = BackgroundType::Type::FreeformGradientPattern;
-    } else if (args[0] == 't') {
-      arg.type = BackgroundType::Type::ChatTheme;
-      arg.theme_name = args.substr(1);
-    } else {
-      arg.type = BackgroundType::Type::Fill;
-      arg.colors = to_integers<int32>(args);
-    }
-  }
-
-  struct ReactionNotificationSource {
-    string source;
-
-    operator td_api::object_ptr<td_api::ReactionNotificationSource>() const {
-      if (source == "none" || source == "n") {
-        return td_api::make_object<td_api::reactionNotificationSourceNone>();
-      }
-      if (source == "contacts" || source == "c") {
-        return td_api::make_object<td_api::reactionNotificationSourceContacts>();
-      }
-      if (source == "all" || source == "a") {
-        return td_api::make_object<td_api::reactionNotificationSourceAll>();
-      }
-      return nullptr;
-    }
-  };
-
-  void get_args(string &args, ReactionNotificationSource &arg) const {
-    arg.source = trim(args);
-  }
-
-  struct PrivacyRules {
-    string rules_str;
-
-    operator td_api::object_ptr<td_api::userPrivacySettingRules>() const {
-      vector<td_api::object_ptr<td_api::UserPrivacySettingRule>> rules;
-      for (size_t i = 0; i < rules_str.size(); i++) {
-        auto arg = vector<int64>{to_integer<int64>(Slice(rules_str).substr(i + 1))};
-        if (rules_str[i] == 'a') {
-          rules.push_back(td_api::make_object<td_api::userPrivacySettingRuleAllowAll>());
-        } else if (rules_str[i] == 'A') {
-          rules.push_back(td_api::make_object<td_api::userPrivacySettingRuleRestrictAll>());
-        } else if (rules_str[i] == 'c') {
-          rules.push_back(td_api::make_object<td_api::userPrivacySettingRuleAllowContacts>());
-        } else if (rules_str[i] == 'C') {
-          rules.push_back(td_api::make_object<td_api::userPrivacySettingRuleRestrictContacts>());
-        } else if (rules_str[i] == 'u') {
-          rules.push_back(td_api::make_object<td_api::userPrivacySettingRuleAllowUsers>(std::move(arg)));
-        } else if (rules_str[i] == 'U') {
-          rules.push_back(td_api::make_object<td_api::userPrivacySettingRuleRestrictUsers>(std::move(arg)));
-        } else if (rules_str[i] == 'm') {
-          rules.push_back(td_api::make_object<td_api::userPrivacySettingRuleAllowChatMembers>(std::move(arg)));
-        } else if (rules_str[i] == 'M') {
-          rules.push_back(td_api::make_object<td_api::userPrivacySettingRuleRestrictChatMembers>(std::move(arg)));
-        } else if (!is_digit(rules_str[i]) && rules_str[i] != '-') {
-          LOG(ERROR) << "Invalid character " << rules_str[i] << " in privacy rules " << rules_str;
-          break;
-        }
-      }
-      return td_api::make_object<td_api::userPrivacySettingRules>(std::move(rules));
-    }
-  };
-
-  void get_args(string &args, PrivacyRules &arg) const {
-    arg.rules_str = trim(args);
-    if (arg.rules_str.empty()) {
-      arg.rules_str = "a";
-    }
-  }
-
-  struct StoryPrivacySettings {
-    string settings;
-    vector<int64> user_ids;
-
-    operator td_api::object_ptr<td_api::StoryPrivacySettings>() const {
-      if (settings == "f" || settings == "cf") {
-        return td_api::make_object<td_api::storyPrivacySettingsCloseFriends>();
-      }
-      if (!settings.empty()) {
-        if (settings[0] == 'a' || settings[0] == 'e') {
-          return td_api::make_object<td_api::storyPrivacySettingsEveryone>(vector<int64>(user_ids));
-        }
-        if (settings[0] == 'c') {
-          return td_api::make_object<td_api::storyPrivacySettingsContacts>(vector<int64>(user_ids));
-        }
-        if (settings[0] == 'u') {
-          return td_api::make_object<td_api::storyPrivacySettingsSelectedUsers>(vector<int64>(user_ids));
-        }
-      }
-      return td_api::make_object<td_api::storyPrivacySettingsContacts>();
-    }
-  };
-
-  void get_args(string &args, StoryPrivacySettings &arg) const {
-    arg.settings = trim(args);
-    if (!arg.settings.empty() && arg.settings != "cf") {
-      arg.user_ids = as_user_ids(Slice(arg.settings).substr(1));
-    }
-  }
-
-  struct InputStoryAreas {
-    string areas;
-
-    operator td_api::object_ptr<td_api::inputStoryAreas>() const {
-      if (areas.empty()) {
-        return nullptr;
-      }
-      auto result = td_api::make_object<td_api::inputStoryAreas>();
-      for (const auto &area : full_split(areas, ';')) {
-        if (area.empty()) {
-          continue;
-        }
-        auto position = td_api::make_object<td_api::storyAreaPosition>(Random::fast(1, 99), Random::fast(1, 99),
-                                                                       Random::fast(1, 99), Random::fast(1, 99),
-                                                                       Random::fast(0, 360), Random::fast(1, 19));
-        td_api::object_ptr<td_api::InputStoryAreaType> type;
-        if (area == "l") {
-          type = td_api::make_object<td_api::inputStoryAreaTypeLocation>(
-              td_api::make_object<td_api::location>(Random::fast(-50, 50), Random::fast(-50, 50), 0.0),
-              td_api::make_object<td_api::locationAddress>("US", "ZZ", "Deniles", "Road"));
-        } else if (area[0] == 'v') {
-          string query_id;
-          string result_id;
-          std::tie(query_id, result_id) = split(area.substr(1), ':');
-          type = td_api::make_object<td_api::inputStoryAreaTypeFoundVenue>(to_integer<int64>(query_id), result_id);
-        } else if (area[0] == 'p') {
-          string venue_provider;
-          string venue_id;
-          std::tie(venue_provider, venue_id) = split(area.substr(1), ':');
-          type = td_api::make_object<td_api::inputStoryAreaTypePreviousVenue>(venue_provider, venue_id);
-        } else if (area[0] == 'r') {
-          type = td_api::make_object<td_api::inputStoryAreaTypeSuggestedReaction>(as_reaction_type(area.substr(1)),
-                                                                                  rand_bool(), rand_bool());
-        } else if (area[0] == 'm') {
-          string chat_id;
-          string message_id;
-          std::tie(chat_id, message_id) = split(area.substr(1), ':');
-          type = td_api::make_object<td_api::inputStoryAreaTypeMessage>(to_integer<int64>(chat_id),
-                                                                        as_message_id(message_id));
-        } else if (area[0] == 'u') {
-          type = td_api::make_object<td_api::inputStoryAreaTypeLink>(area.substr(1));
-        } else if (area[0] == 'w') {
-          type = td_api::make_object<td_api::inputStoryAreaTypeWeather>(20.1, "☀️", to_integer<int32>(area.substr(1)));
-        } else if (area[0] == 'g') {
-          type = td_api::make_object<td_api::inputStoryAreaTypeUpgradedGift>(area.substr(1));
-        }
-        result->areas_.push_back(td_api::make_object<td_api::inputStoryArea>(std::move(position), std::move(type)));
-      }
-      return result;
-    }
-  };
-
-  void get_args(string &args, InputStoryAreas &arg) const {
-    arg.areas = trim(args);
-  }
-
-  template <class FirstType, class SecondType, class... Types>
-  void get_args(string &args, FirstType &first_arg, SecondType &second_arg, Types &...other_args) const {
-    string arg;
-    std::tie(arg, args) = split(args);
-    get_args(arg, first_arg);
-    get_args(args, second_arg, other_args...);
-  }
-
-  void on_result(uint64 generation, uint64 id, td_api::object_ptr<td_api::Object> result) {
-    auto result_str = to_string(result);
-    if (result != nullptr) {
-      switch (result->get_id()) {
-        case td_api::stickerSets::ID: {
-          auto sticker_sets = static_cast<const td_api::stickerSets *>(result.get());
-          result_str = PSTRING() << "StickerSets { total_count = " << sticker_sets->total_count_
-                                 << ", count = " << sticker_sets->sets_.size();
-          for (auto &sticker_set : sticker_sets->sets_) {
-            result_str += PSTRING() << ", " << sticker_set->name_;
-          }
-          result_str += " }";
-          break;
-        }
-        case td_api::trendingStickerSets::ID: {
-          auto sticker_sets = static_cast<const td_api::trendingStickerSets *>(result.get());
-          result_str = PSTRING() << "TrendingStickerSets { is_premium = " << sticker_sets->is_premium_
-                                 << ", total_count = " << sticker_sets->total_count_
-                                 << ", count = " << sticker_sets->sets_.size();
-          for (auto &sticker_set : sticker_sets->sets_) {
-            result_str += PSTRING() << ", " << sticker_set->name_;
-          }
-          result_str += " }";
-          break;
-        }
-        default:
-          break;
-      }
-    }
-
-    if (id > 0 && combined_log.get_first_verbosity_level() < get_log_tag_verbosity_level("td_requests")) {
-      LOG(ERROR) << "Receive result [" << generation << "][id=" << id << "] " << result_str;
-    }
-
-    auto as_json_str = json_encode<std::string>(ToJson(result));
-    // LOG(INFO) << "Receive result [" << generation << "][id=" << id << "] " << as_json_str;
-    //auto copy_as_json_str = as_json_str;
-    //auto as_json_value = json_decode(copy_as_json_str).move_as_ok();
-    //td_api::object_ptr<td_api::Object> object;
-    //from_json(object, as_json_value).ensure();
-    //CHECK(object != nullptr);
-    //auto as_json_str2 = json_encode<std::string>(ToJson(object));
-    //LOG_CHECK(as_json_str == as_json_str2) << "\n" << tag("a", as_json_str) << "\n" << tag("b", as_json_str2);
-    // LOG(INFO) << "Receive result [" << generation << "][id=" << id << "] " << as_json_str;
-
-    if (generation != generation_) {
-      LOG(INFO) << "Drop received from previous Client " << result_str;
-      return;
-    }
-
-    int32 result_id = result == nullptr ? 0 : result->get_id();
-
-    [&] {
-      if (id != 0) {
-        auto it = query_id_to_send_message_info_.find(id);
-        if (it == query_id_to_send_message_info_.end()) {
-          return;
-        }
-        auto info = it->second;
-        query_id_to_send_message_info_.erase(id);
-
-        if (result_id == td_api::message::ID) {
-          auto *message = static_cast<const td_api::message *>(result.get());
-          message_id_to_send_message_info_[message->id_] = info;
-        }
-      }
-    }();
-    [&] {
-      if (result_id == td_api::updateMessageSendAcknowledged::ID) {
-        auto *message = static_cast<const td_api::updateMessageSendAcknowledged *>(result.get());
-        auto it = message_id_to_send_message_info_.find(message->message_id_);
-        if (it == message_id_to_send_message_info_.end()) {
-          return;
-        }
-        auto &info = it->second;
-        info.quick_ack_time = Time::now();
-      }
-    }();
-    [&] {
-      if (result_id == td_api::updateMessageSendSucceeded::ID) {
-        auto *message = static_cast<const td_api::updateMessageSendSucceeded *>(result.get());
-        auto it = message_id_to_send_message_info_.find(message->old_message_id_);
-        if (it == message_id_to_send_message_info_.end()) {
-          return;
-        }
-        auto info = it->second;
-        message_id_to_send_message_info_.erase(it);
-        info.ack_time = Time::now();
-        LOG(INFO) << info;
-      }
-    }();
-
-    switch (result_id) {
-      case td_api::updateUser::ID:
-        register_user(*static_cast<const td_api::updateUser *>(result.get())->user_);
-        break;
-      case td_api::updateSupergroup::ID:
-        register_supergroup(*static_cast<const td_api::updateSupergroup *>(result.get())->supergroup_);
-        break;
-      case td_api::users::ID:
-        update_users(*static_cast<const td_api::users *>(result.get()));
-        break;
-      case td_api::updateOption::ID:
-        update_option(*static_cast<const td_api::updateOption *>(result.get()));
-        break;
-      case td_api::message::ID:
-        on_get_message(*static_cast<const td_api::message *>(result.get()));
-        break;
-      case td_api::messages::ID:
-        on_get_messages(*static_cast<const td_api::messages *>(result.get()));
-        break;
-      case td_api::chatEvents::ID:
-        on_get_chat_events(*static_cast<const td_api::chatEvents *>(result.get()));
-        break;
-      case td_api::updateFileGenerationStart::ID:
-        on_file_generation_start(*static_cast<const td_api::updateFileGenerationStart *>(result.get()));
-        break;
-      case td_api::updateAuthorizationState::ID:
-        LOG(WARNING) << result_str;
-        on_update_authorization_state(
-            std::move(static_cast<td_api::updateAuthorizationState *>(result.get())->authorization_state_));
-        break;
-      case td_api::updateChatLastMessage::ID: {
-        auto message = static_cast<const td_api::updateChatLastMessage *>(result.get())->last_message_.get();
-        if (message != nullptr && message->content_->get_id() == td_api::messageText::ID) {
-          // auto text = static_cast<const td_api::messageText *>(message->content_.get())->text_->text_;
-        }
-        break;
-      }
-      case td_api::updateNewMessage::ID: {
-        auto message = static_cast<const td_api::updateNewMessage *>(result.get())->message_.get();
-        if (message != nullptr && message->content_->get_id() == td_api::messageText::ID) {
-          // auto chat_id = message->chat_id_;
-          auto text = static_cast<const td_api::messageText *>(message->content_.get())->text_->text_;
-          if (text == "/start" && !message->is_outgoing_ && use_test_dc_) {
-            // on_cmd(PSTRING() << "sm " << chat_id << " Hi!");
-          }
-        }
-        break;
-      }
-      case td_api::updateNewBusinessMessage::ID: {
-        const auto *update = static_cast<const td_api::updateNewBusinessMessage *>(result.get());
-        const auto *message = update->message_->message_.get();
-        if (!message->is_outgoing_ && use_test_dc_) {
-          auto old_business_connection_id = std::move(business_connection_id_);
-          business_connection_id_ = update->connection_id_;
-          on_cmd("gbc");
-          send_message(message->chat_id_,
-                       td_api::make_object<td_api::inputMessageText>(as_formatted_text("Welcome!"),
-                                                                     get_link_preview_options(), true),
-                       false, false);
-          business_connection_id_ = std::move(old_business_connection_id);
-        }
-        break;
-      }
-      case td_api::updateNewPreCheckoutQuery::ID:
-        if (use_test_dc_) {
-          const auto *update = static_cast<const td_api::updateNewPreCheckoutQuery *>(result.get());
-          send_request(td_api::make_object<td_api::answerPreCheckoutQuery>(update->id_, string()));
-        }
-        break;
-      case td_api::file::ID:
-        on_get_file(*static_cast<const td_api::file *>(result.get()));
-        break;
-      case td_api::updateFile::ID:
-        on_get_file(*static_cast<const td_api::updateFile *>(result.get())->file_);
-        break;
-      case td_api::updateConnectionState::ID:
-        LOG(WARNING) << result_str;
-        break;
-      default:
-        break;
-    }
-  }
-
-  void on_error(uint64 generation, uint64 id, td_api::object_ptr<td_api::error> error) {
-    if (id > 0 && combined_log.get_first_verbosity_level() < get_log_tag_verbosity_level("td_requests")) {
-      LOG(ERROR) << "Receive error [" << generation << "][id=" << id << "] " << to_string(error);
-    }
-  }
-
-  void on_closed(uint64 generation) {
-    LOG(WARNING) << "Td with generation " << generation << " is closed";
-    closed_td_++;
-    if (closed_td_ == generation_) {
-      LOG(WARNING) << "Ready to stop";
-      ready_to_stop_ = true;
-      if (close_flag_) {
-        yield();
-      }
-    }
-  }
-
-  void quit() {
-    if (close_flag_) {
-      return;
-    }
-
-    LOG(WARNING) << "QUIT";
-    close_flag_ = true;
-    dump_memory_usage();
-    td_client_.reset();
-    Scheduler::unsubscribe(stdin_.get_poll_info().get_pollable_fd_ref());
-    is_stdin_reader_stopped_ = true;
-    yield();
-  }
-
-  BufferedStdin stdin_;
-  static CliClient *instance_;
-
-#ifdef USE_READLINE
-  /* Callback function called for each line when accept-line executed, EOF
-   *    seen, or EOF character read.  This sets a flag and returns; it could
-   *       also call exit. */
-  static void static_add_cmd(char *line) {
-    /* Can use ^D (stty eof) to exit. */
-    if (line == nullptr) {
-      LOG(FATAL) << "Closed";
-      return;
-    }
-    if (*line) {
-      add_history(line);
-    }
-    instance_->add_cmd(line);
-    rl_free(line);
-  }
-  static int static_getc(FILE *) {
-    return instance_->stdin_getc();
-  }
-#endif
-
-  uint64 generation_ = 0;
-  uint64 closed_td_ = 0;
-  void create_td(Slice name) {
-    if (ready_to_stop_) {
-      return;
-    }
-
-    LOG(WARNING) << "Creating new Td " << name << " with generation " << generation_ + 1;
-    class TdCallbackImpl final : public TdCallback {
-     public:
-      TdCallbackImpl(CliClient *client, uint64 generation) : client_(client), generation_(generation) {
-      }
-      void on_result(uint64 id, td_api::object_ptr<td_api::Object> result) final {
-        client_->on_result(generation_, id, std::move(result));
-      }
-      void on_error(uint64 id, td_api::object_ptr<td_api::error> error) final {
-        client_->on_error(generation_, id, std::move(error));
-      }
-      TdCallbackImpl(const TdCallbackImpl &) = delete;
-      TdCallbackImpl &operator=(const TdCallbackImpl &) = delete;
-      TdCallbackImpl(TdCallbackImpl &&) = delete;
-      TdCallbackImpl &operator=(TdCallbackImpl &&) = delete;
-      ~TdCallbackImpl() final {
-        client_->on_closed(generation_);
-      }
-
-     private:
-      CliClient *client_;
-      uint64 generation_;
-    };
-
-    ClientActor::Options options;
-    options.net_query_stats = net_query_stats_;
-
-    td_client_ = create_actor<ClientActor>(name, make_unique<TdCallbackImpl>(this, ++generation_), std::move(options));
-
-    if (get_chat_list_) {
-      send_request(td_api::make_object<td_api::getChats>(nullptr, 10000));
-    }
-    if (disable_network_) {
-      send_request(td_api::make_object<td_api::setNetworkType>(td_api::make_object<td_api::networkTypeNone>()));
-    }
-  }
-
-  void init_td() {
-    close_flag_ = false;
-    ready_to_stop_ = false;
-    generation_ = 0;
-    closed_td_ = 0;
-
-    create_td("ClientActor1");
-
-    bool test_init = false;
-    if (test_init) {
-      create_td("ClientActor2");
-
-      for (int i = 0; i < 4; i++) {
-        send_closure_later(td_client_, &ClientActor::request, std::numeric_limits<uint64>::max(),
-                           td_api::make_object<td_api::setAlarm>(0.001 + 1000 * (i / 2)));
-      }
-
-      send_request(td_api::make_object<td_api::getStorageStatistics>(10));
-      send_request(td_api::make_object<td_api::getStorageStatisticsFast>());
-
-      send_request(td_api::make_object<td_api::getTextEntities>(
-          "@telegram /test_command https://telegram.org telegram.me @gif @test"));
-
-      send_request(
-          td_api::make_object<td_api::setOption>("xxx", td_api::make_object<td_api::optionValueBoolean>(true)));
-      send_request(td_api::make_object<td_api::setOption>("xxx", td_api::make_object<td_api::optionValueInteger>(1)));
-      send_request(td_api::make_object<td_api::setOption>("xxx", td_api::make_object<td_api::optionValueString>("2")));
-      send_request(td_api::make_object<td_api::setOption>("xxx", td_api::make_object<td_api::optionValueEmpty>()));
-
-      send_request(td_api::make_object<td_api::getOption>("use_pfs"));
-      send_request(td_api::make_object<td_api::setOption>(
-          "use_pfs", td_api::make_object<td_api::optionValueBoolean>(std::time(nullptr) / 86400 % 2 == 0)));
-      send_request(td_api::make_object<td_api::setOption>("notification_group_count_max",
-                                                          td_api::make_object<td_api::optionValueInteger>(1)));
-      send_request(td_api::make_object<td_api::setOption>("use_storage_optimizer",
-                                                          td_api::make_object<td_api::optionValueBoolean>(false)));
-      send_request(td_api::make_object<td_api::setOption>(
-          "use_pfs", td_api::make_object<td_api::optionValueBoolean>(std::time(nullptr) / 86400 % 2 == 0)));
-      send_request(td_api::make_object<td_api::setOption>("disable_contact_registered_notifications",
-                                                          td_api::make_object<td_api::optionValueBoolean>(true)));
-
-      send_request(td_api::make_object<td_api::setNetworkType>(td_api::make_object<td_api::networkTypeWiFi>()));
-      send_request(td_api::make_object<td_api::getNetworkStatistics>());
-      send_request(td_api::make_object<td_api::getCountryCode>());
-      send_request(
-          td_api::make_object<td_api::addProxy>("1.1.1.1", 1111, true, td_api::make_object<td_api::proxyTypeSocks5>()));
-      send_request(td_api::make_object<td_api::addProxy>("1.1.1.1", 1112, false,
-                                                         td_api::make_object<td_api::proxyTypeSocks5>()));
-      send_request(td_api::make_object<td_api::pingProxy>(0));
-
-      auto bad_request = td_api::make_object<td_api::setTdlibParameters>();
-      bad_request->database_directory_ = "/..";
-      bad_request->api_id_ = api_id_;
-      bad_request->api_hash_ = api_hash_;
-      send_request(std::move(bad_request));
-    }
-  }
-
-  void init() {
-    instance_ = this;
-
-    init_td();
-
-#ifdef USE_READLINE
-    deactivate_readline();
-    rl_getc_function = static_getc;
-    rl_callback_handler_install(prompt, static_add_cmd);
-    rl_attempted_completion_function = tg_cli_completion;
-    reactivate_readline();
-#endif
-    Scheduler::subscribe(stdin_.get_poll_info().extract_pollable_fd(this), PollFlags::Read());
-  }
-#ifndef USE_READLINE
-  size_t buffer_pos_ = 0;
-  Result<BufferSlice> process_stdin(ChainBufferReader *buffer) {
-    auto found = find_boundary(buffer->clone(), "\n", buffer_pos_);
-
-    if (!found) {
-      return Status::Error("End of line not found");
-    }
-
-    auto data = buffer->cut_head(buffer_pos_).move_as_buffer_slice();
-    if (!data.empty() && data[data.size() - 1] == '\r') {
-      data.truncate(data.size() - 1);
-    }
-    buffer->advance(1);
-    buffer_pos_ = 0;
-    return std::move(data);
-  }
-#endif
-
-  static td_api::object_ptr<td_api::formattedText> as_formatted_text(
-      const string &text, vector<td_api::object_ptr<td_api::textEntity>> entities = {}) {
-    if (entities.empty() && !text.empty()) {
-      Slice unused_reserved_characters("#+-={}.");
-      string new_text;
-      for (size_t i = 0; i < text.size(); i++) {
-        auto c = text[i];
-        if (c == '\\' && text[i + 1] == 'n') {
-          new_text += '\n';
-          i++;
-          continue;
-        }
-        if (unused_reserved_characters.find(c) != Slice::npos) {
-          new_text += '\\';
-        }
-        new_text += c;
-      }
-      auto parsed_text = ClientActor::execute(td_api::make_object<td_api::parseTextEntities>(
-          new_text, td_api::make_object<td_api::textParseModeMarkdown>(2)));
-      if (parsed_text->get_id() == td_api::formattedText::ID) {
-        return td_api::move_object_as<td_api::formattedText>(parsed_text);
-      }
-    }
-    return td_api::make_object<td_api::formattedText>(text, std::move(entities));
-  }
-
-  static td_api::object_ptr<td_api::formattedText> as_caption(
-      const string &caption, vector<td_api::object_ptr<td_api::textEntity>> entities = {}) {
-    return as_formatted_text(caption, std::move(entities));
-  }
-
-  static td_api::object_ptr<td_api::NotificationSettingsScope> as_notification_settings_scope(Slice scope) {
-    if (scope.empty()) {
-      return nullptr;
-    }
-    if (scope == "channels" || scope == "ch") {
-      return td_api::make_object<td_api::notificationSettingsScopeChannelChats>();
-    }
-    if (scope == "chats" || scope == "groups" || as_bool(scope.str())) {
-      return td_api::make_object<td_api::notificationSettingsScopeGroupChats>();
-    }
-    return td_api::make_object<td_api::notificationSettingsScopePrivateChats>();
-  }
-
-  static td_api::object_ptr<td_api::UserPrivacySetting> as_user_privacy_setting(MutableSlice setting) {
-    setting = trim(setting);
-    to_lower_inplace(setting);
-    if (setting == "invite") {
-      return td_api::make_object<td_api::userPrivacySettingAllowChatInvites>();
-    }
-    if (setting == "status") {
-      return td_api::make_object<td_api::userPrivacySettingShowStatus>();
-    }
-    if (setting == "call") {
-      return td_api::make_object<td_api::userPrivacySettingAllowCalls>();
-    }
-    if (setting == "p2p") {
-      return td_api::make_object<td_api::userPrivacySettingAllowPeerToPeerCalls>();
-    }
-    if (setting == "forward") {
-      return td_api::make_object<td_api::userPrivacySettingShowLinkInForwardedMessages>();
-    }
-    if (setting == "photo") {
-      return td_api::make_object<td_api::userPrivacySettingShowProfilePhoto>();
-    }
-    if (setting == "phone_number") {
-      return td_api::make_object<td_api::userPrivacySettingShowPhoneNumber>();
-    }
-    if (setting == "bio") {
-      return td_api::make_object<td_api::userPrivacySettingShowBio>();
-    }
-    if (setting == "find") {
-      return td_api::make_object<td_api::userPrivacySettingAllowFindingByPhoneNumber>();
-    }
-    if (setting == "birth") {
-      return td_api::make_object<td_api::userPrivacySettingShowBirthdate>();
-    }
-    if (setting == "gift") {
-      return td_api::make_object<td_api::userPrivacySettingAutosaveGifts>();
-    }
-    return nullptr;
-  }
-
-  static td_api::object_ptr<td_api::SearchMessagesFilter> as_search_messages_filter(Slice filter) {
-    filter = trim(filter);
-    string lowered_filter = to_lower(filter);
-    filter = lowered_filter;
-    if (begins_with(filter, "search")) {
-      filter.remove_prefix(6);
-    }
-    if (filter == "an" || filter == "animation") {
-      return td_api::make_object<td_api::searchMessagesFilterAnimation>();
-    }
-    if (filter == "au" || filter == "audio") {
-      return td_api::make_object<td_api::searchMessagesFilterAudio>();
-    }
-    if (filter == "d" || filter == "document") {
-      return td_api::make_object<td_api::searchMessagesFilterDocument>();
-    }
-    if (filter == "p" || filter == "photo") {
-      return td_api::make_object<td_api::searchMessagesFilterPhoto>();
-    }
-    if (filter == "vi" || filter == "video") {
-      return td_api::make_object<td_api::searchMessagesFilterVideo>();
-    }
-    if (filter == "vo" || filter == "voice") {
-      return td_api::make_object<td_api::searchMessagesFilterVoiceNote>();
-    }
-    if (filter == "pvi") {
-      return td_api::make_object<td_api::searchMessagesFilterPhotoAndVideo>();
-    }
-    if (filter == "u" || filter == "url") {
-      return td_api::make_object<td_api::searchMessagesFilterUrl>();
-    }
-    if (filter == "cp" || filter == "chatphoto") {
-      return td_api::make_object<td_api::searchMessagesFilterChatPhoto>();
-    }
-    if (filter == "vn" || filter == "videonote") {
-      return td_api::make_object<td_api::searchMessagesFilterVideoNote>();
-    }
-    if (filter == "vvn" || filter == "voicevideonote") {
-      return td_api::make_object<td_api::searchMessagesFilterVoiceAndVideoNote>();
-    }
-    if (filter == "m" || filter == "mention") {
-      return td_api::make_object<td_api::searchMessagesFilterMention>();
-    }
-    if (filter == "um" || filter == "umention") {
-      return td_api::make_object<td_api::searchMessagesFilterUnreadMention>();
-    }
-    if (filter == "ur" || filter == "ureaction") {
-      return td_api::make_object<td_api::searchMessagesFilterUnreadReaction>();
-    }
-    if (filter == "f" || filter == "failed") {
-      return td_api::make_object<td_api::searchMessagesFilterFailedToSend>();
-    }
-    if (filter == "pi" || filter == "pinned") {
-      return td_api::make_object<td_api::searchMessagesFilterPinned>();
-    }
-    if (!filter.empty()) {
-      LOG(ERROR) << "Unsupported message filter " << filter;
-    }
-    return nullptr;
-  }
-
-  static td_api::object_ptr<td_api::ChatMembersFilter> as_chat_members_filter(MutableSlice filter) {
-    filter = trim(filter);
-    to_lower_inplace(filter);
-    if (filter == "a" || filter == "admin" || filter == "administrators") {
-      return td_api::make_object<td_api::chatMembersFilterAdministrators>();
-    }
-    if (filter == "b" || filter == "banned") {
-      return td_api::make_object<td_api::chatMembersFilterBanned>();
-    }
-    if (filter == "bot" || filter == "bots") {
-      return td_api::make_object<td_api::chatMembersFilterBots>();
-    }
-    if (filter == "c" || filter == "contacts") {
-      return td_api::make_object<td_api::chatMembersFilterContacts>();
-    }
-    if (filter == "m" || filter == "members") {
-      return td_api::make_object<td_api::chatMembersFilterMembers>();
-    }
-    if (begins_with(filter, "@")) {
-      return td_api::make_object<td_api::chatMembersFilterMention>(as_message_thread_id(filter.substr(1)));
-    }
-    if (filter == "r" || filter == "rest" || filter == "restricted") {
-      return td_api::make_object<td_api::chatMembersFilterRestricted>();
-    }
-    if (!filter.empty()) {
-      LOG(ERROR) << "Unsupported chat member filter " << filter;
-    }
-    return nullptr;
-  }
-
-  static td_api::object_ptr<td_api::SupergroupMembersFilter> as_supergroup_members_filter(MutableSlice filter,
-                                                                                          const string &query,
-                                                                                          Slice message_thread_id) {
-    filter = trim(filter);
-    to_lower_inplace(filter);
-    if (begins_with(filter, "get")) {
-      filter.remove_prefix(3);
-    }
-    if (begins_with(filter, "search")) {
-      filter.remove_prefix(6);
-    }
-    if (begins_with(filter, "supergroup")) {
-      filter.remove_prefix(10);
-    }
-    if (filter == "administrators") {
-      return td_api::make_object<td_api::supergroupMembersFilterAdministrators>();
-    }
-    if (filter == "banned") {
-      return td_api::make_object<td_api::supergroupMembersFilterBanned>(query);
-    }
-    if (filter == "bots") {
-      return td_api::make_object<td_api::supergroupMembersFilterBots>();
-    }
-    if (filter == "contacts") {
-      return td_api::make_object<td_api::supergroupMembersFilterContacts>(query);
-    }
-    if (filter == "members") {
-      if (query.empty()) {
-        return td_api::make_object<td_api::supergroupMembersFilterRecent>();
-      } else {
-        return td_api::make_object<td_api::supergroupMembersFilterSearch>(query);
-      }
-    }
-    if (filter == "restricted") {
-      return td_api::make_object<td_api::supergroupMembersFilterRestricted>(query);
-    }
-    if (filter == "mentions") {
-      return td_api::make_object<td_api::supergroupMembersFilterMention>(query,
-                                                                         as_message_thread_id(message_thread_id));
-    }
-    return nullptr;
-  }
-
-  static bool rand_bool() {
-    return Random::fast_bool();
-  }
-
-  td_api::object_ptr<td_api::chatFolder> as_chat_folder(string filter, bool is_shareable = false) const {
-    string title;
-    string icon_name;
-    string pinned_chat_ids;
-    string included_chat_ids;
-    string excluded_chat_ids;
-    get_args(filter, title, icon_name, pinned_chat_ids, included_chat_ids, excluded_chat_ids);
-    return td_api::make_object<td_api::chatFolder>(
-        td_api::make_object<td_api::chatFolderName>(td_api::make_object<td_api::formattedText>(title, Auto()), true),
-        td_api::make_object<td_api::chatFolderIcon>(icon_name), -1, is_shareable, as_chat_ids(pinned_chat_ids),
-        as_chat_ids(included_chat_ids), as_chat_ids(excluded_chat_ids), rand_bool(), rand_bool(), rand_bool(),
-        rand_bool(), rand_bool(), rand_bool(), rand_bool(), rand_bool());
-  }
-
-  static td_api::object_ptr<td_api::chatAdministratorRights> as_chat_administrator_rights(
-      bool can_manage_chat, bool can_change_info, bool can_post_messages, bool can_edit_messages,
-      bool can_delete_messages, bool can_invite_users, bool can_restrict_members, bool can_pin_messages,
-      bool can_manage_topics, bool can_promote_members, bool can_manage_video_chats, bool can_post_stories,
-      bool can_edit_stories, bool can_delete_stories, bool is_anonymous) {
-    return td_api::make_object<td_api::chatAdministratorRights>(
-        can_manage_chat, can_change_info, can_post_messages, can_edit_messages, can_delete_messages, can_invite_users,
-        can_restrict_members, can_pin_messages, can_manage_topics, can_promote_members, can_manage_video_chats,
-        can_post_stories, can_edit_stories, can_delete_stories, is_anonymous);
-  }
-
-  static td_api::object_ptr<td_api::TopChatCategory> as_top_chat_category(MutableSlice category) {
-    category = trim(category);
-    to_lower_inplace(category);
-    if (!category.empty() && category.back() == 's') {
-      category.remove_suffix(1);
-    }
-    if (category == "bot") {
-      return td_api::make_object<td_api::topChatCategoryBots>();
-    } else if (category == "group") {
-      return td_api::make_object<td_api::topChatCategoryGroups>();
-    } else if (category == "channel") {
-      return td_api::make_object<td_api::topChatCategoryChannels>();
-    } else if (category == "inline") {
-      return td_api::make_object<td_api::topChatCategoryInlineBots>();
-    } else if (category == "app") {
-      return td_api::make_object<td_api::topChatCategoryWebAppBots>();
-    } else if (category == "call") {
-      return td_api::make_object<td_api::topChatCategoryCalls>();
-    } else if (category == "forward") {
-      return td_api::make_object<td_api::topChatCategoryForwardChats>();
-    } else {
-      return td_api::make_object<td_api::topChatCategoryUsers>();
-    }
-  }
-
-  static td_api::object_ptr<td_api::ChatAction> as_chat_action(MutableSlice action) {
-    action = trim(action);
-    to_lower_inplace(action);
-    if (action == "c" || action == "cancel") {
-      return td_api::make_object<td_api::chatActionCancel>();
-    }
-    if (action == "rvi" || action == "record_video") {
-      return td_api::make_object<td_api::chatActionRecordingVideo>();
-    }
-    if (action == "uvi" || action == "upload_video") {
-      return td_api::make_object<td_api::chatActionUploadingVideo>(50);
-    }
-    if (action == "rvo" || action == "record_voice") {
-      return td_api::make_object<td_api::chatActionRecordingVoiceNote>();
-    }
-    if (action == "uvo" || action == "upload_voice") {
-      return td_api::make_object<td_api::chatActionUploadingVoiceNote>(50);
-    }
-    if (action == "up" || action == "upload_photo") {
-      return td_api::make_object<td_api::chatActionUploadingPhoto>(50);
-    }
-    if (action == "ud" || action == "upload_document") {
-      return td_api::make_object<td_api::chatActionUploadingDocument>(50);
-    }
-    if (action == "fl" || action == "find_location") {
-      return td_api::make_object<td_api::chatActionChoosingLocation>();
-    }
-    if (action == "cc" || action == "choose_contact") {
-      return td_api::make_object<td_api::chatActionChoosingContact>();
-    }
-    if (action == "spg" || action == "start_play_game") {
-      return td_api::make_object<td_api::chatActionStartPlayingGame>();
-    }
-    if (action == "rvn" || action == "record_video_note") {
-      return td_api::make_object<td_api::chatActionRecordingVideoNote>();
-    }
-    if (action == "uvn" || action == "upload_video_note") {
-      return td_api::make_object<td_api::chatActionUploadingVideoNote>(50);
-    }
-    if (action == "cs" || action == "choose_sticker") {
-      return td_api::make_object<td_api::chatActionChoosingSticker>();
-    }
-    if (begins_with(action, "wa")) {
-      return td_api::make_object<td_api::chatActionWatchingAnimations>(action.substr(2).str());
-    }
-    return td_api::make_object<td_api::chatActionTyping>();
-  }
-
-  static td_api::object_ptr<td_api::ReportReason> as_report_reason(string reason) {
-    reason = trim(reason);
-    if (reason == "null") {
-      return nullptr;
-    }
-    if (reason == "spam") {
-      return td_api::make_object<td_api::reportReasonSpam>();
-    }
-    if (reason == "violence") {
-      return td_api::make_object<td_api::reportReasonViolence>();
-    }
-    if (reason == "porno") {
-      return td_api::make_object<td_api::reportReasonPornography>();
-    }
-    if (reason == "ca") {
-      return td_api::make_object<td_api::reportReasonChildAbuse>();
-    }
-    if (reason == "copyright") {
-      return td_api::make_object<td_api::reportReasonCopyright>();
-    }
-    if (reason == "geo" || reason == "location") {
-      return td_api::make_object<td_api::reportReasonUnrelatedLocation>();
-    }
-    if (reason == "fake") {
-      return td_api::make_object<td_api::reportReasonFake>();
-    }
-    if (reason == "drugs") {
-      return td_api::make_object<td_api::reportReasonIllegalDrugs>();
-    }
-    if (reason == "pd") {
-      return td_api::make_object<td_api::reportReasonPersonalDetails>();
-    }
-    return td_api::make_object<td_api::reportReasonCustom>();
-  }
-
-  static td_api::object_ptr<td_api::NetworkType> as_network_type(MutableSlice type) {
-    type = trim(type);
-    to_lower_inplace(type);
-    if (type == "none") {
-      return td_api::make_object<td_api::networkTypeNone>();
-    }
-    if (type == "mobile") {
-      return td_api::make_object<td_api::networkTypeMobile>();
-    }
-    if (type == "roaming") {
-      return td_api::make_object<td_api::networkTypeMobileRoaming>();
-    }
-    if (type == "wifi") {
-      return td_api::make_object<td_api::networkTypeWiFi>();
-    }
-    if (type == "other") {
-      return td_api::make_object<td_api::networkTypeOther>();
-    }
-    return nullptr;
-  }
-
-  td_api::object_ptr<td_api::SuggestedAction> as_suggested_action(Slice action) const {
-    if (action == "unarchive") {
-      return td_api::make_object<td_api::suggestedActionEnableArchiveAndMuteNewChats>();
-    }
-    if (action == "pass") {
-      return td_api::make_object<td_api::suggestedActionCheckPassword>();
-    }
-    if (action == "number") {
-      return td_api::make_object<td_api::suggestedActionCheckPhoneNumber>();
-    }
-    if (action == "checks") {
-      return td_api::make_object<td_api::suggestedActionViewChecksHint>();
-    }
-    if (action == "extend") {
-      return td_api::make_object<td_api::suggestedActionExtendPremium>("");
-    }
-    if (action == "annual") {
-      return td_api::make_object<td_api::suggestedActionSubscribeToAnnualPremium>();
-    }
-    if (begins_with(action, "giga")) {
-      return td_api::make_object<td_api::suggestedActionConvertToBroadcastGroup>(as_supergroup_id(action.substr(4)));
-    }
-    if (begins_with(action, "spass")) {
-      return td_api::make_object<td_api::suggestedActionSetPassword>(to_integer<int32>(action.substr(5)));
-    }
-    return nullptr;
-  }
-
-  static td_api::object_ptr<td_api::EmailAddressAuthentication> as_email_address_authentication(Slice arg) {
-    if (begins_with(arg, "a ")) {
-      return td_api::make_object<td_api::emailAddressAuthenticationAppleId>(arg.substr(2).str());
-    } else if (begins_with(arg, "g ")) {
-      return td_api::make_object<td_api::emailAddressAuthenticationGoogleId>(arg.substr(2).str());
-    } else if (!arg.empty()) {
-      return td_api::make_object<td_api::emailAddressAuthenticationCode>(arg.str());
-    }
-    return nullptr;
-  }
-
-  static td_api::object_ptr<td_api::PassportElementType> as_passport_element_type(Slice passport_element_type) {
-    if (passport_element_type == "address" || passport_element_type == "a") {
-      return td_api::make_object<td_api::passportElementTypeAddress>();
-    }
-    if (passport_element_type == "email" || passport_element_type == "e") {
-      return td_api::make_object<td_api::passportElementTypeEmailAddress>();
-    }
-    if (passport_element_type == "phone" || passport_element_type == "p") {
-      return td_api::make_object<td_api::passportElementTypePhoneNumber>();
-    }
-    if (passport_element_type == "pd") {
-      return td_api::make_object<td_api::passportElementTypePersonalDetails>();
-    }
-    if (passport_element_type == "dl") {
-      return td_api::make_object<td_api::passportElementTypeDriverLicense>();
-    }
-    if (passport_element_type == "ip") {
-      return td_api::make_object<td_api::passportElementTypeInternalPassport>();
-    }
-    if (passport_element_type == "ic") {
-      return td_api::make_object<td_api::passportElementTypeIdentityCard>();
-    }
-    if (passport_element_type == "ra") {
-      return td_api::make_object<td_api::passportElementTypeRentalAgreement>();
-    }
-    if (passport_element_type == "pr") {
-      return td_api::make_object<td_api::passportElementTypePassportRegistration>();
-    }
-    if (passport_element_type == "tr") {
-      return td_api::make_object<td_api::passportElementTypeTemporaryRegistration>();
-    }
-    return td_api::make_object<td_api::passportElementTypePassport>();
-  }
-
-  static auto as_passport_element_types(Slice types) {
-    return transform(autosplit(types), as_passport_element_type);
-  }
-
-  static td_api::object_ptr<td_api::InputPassportElement> as_input_passport_element(const string &passport_element_type,
-                                                                                    const string &arg,
-                                                                                    bool with_selfie) {
-    vector<td_api::object_ptr<td_api::InputFile>> input_files;
-    td_api::object_ptr<td_api::InputFile> selfie;
-    if (!arg.empty()) {
-      auto files = autosplit(arg);
-      CHECK(!files.empty());
-      if (with_selfie) {
-        selfie = as_input_file(files.back());
-        files.pop_back();
-      }
-      for (const auto &file : files) {
-        input_files.push_back(as_input_file(file));
-      }
-    }
-    if (passport_element_type == "address" || passport_element_type == "a") {
-      return td_api::make_object<td_api::inputPassportElementAddress>(
-          td_api::make_object<td_api::address>("US", "CA", "Los Angeles", "Washington", "", "90001"));
-    } else if (passport_element_type == "email" || passport_element_type == "e") {
-      return td_api::make_object<td_api::inputPassportElementEmailAddress>(arg);
-    } else if (passport_element_type == "phone" || passport_element_type == "p") {
-      return td_api::make_object<td_api::inputPassportElementPhoneNumber>(arg);
-    } else if (passport_element_type == "pd") {
-      return td_api::make_object<td_api::inputPassportElementPersonalDetails>(
-          td_api::make_object<td_api::personalDetails>("Mike", "Jr", "Towers", u8"Mike\u2708", u8"Jr\u26fd",
-                                                       u8"Towers\u2757", td_api::make_object<td_api::date>(29, 2, 2000),
-                                                       "male", "US", "GB"));
-    } else if (passport_element_type == "driver_license" || passport_element_type == "dl") {
-      if (input_files.size() >= 2) {
-        auto front_side = std::move(input_files[0]);
-        input_files.erase(input_files.begin());
-        auto reverse_side = std::move(input_files[0]);
-        input_files.erase(input_files.begin());
-        return td_api::make_object<td_api::inputPassportElementDriverLicense>(
-            td_api::make_object<td_api::inputIdentityDocument>(
-                "1234567890", td_api::make_object<td_api::date>(1, 3, 2029), std::move(front_side),
-                std::move(reverse_side), std::move(selfie), std::move(input_files)));
-      }
-    } else if (passport_element_type == "identity_card" || passport_element_type == "ic") {
-      if (input_files.size() >= 2) {
-        auto front_side = std::move(input_files[0]);
-        input_files.erase(input_files.begin());
-        auto reverse_side = std::move(input_files[0]);
-        input_files.erase(input_files.begin());
-        return td_api::make_object<td_api::inputPassportElementIdentityCard>(
-            td_api::make_object<td_api::inputIdentityDocument>("1234567890", nullptr, std::move(front_side),
-                                                               std::move(reverse_side), std::move(selfie),
-                                                               std::move(input_files)));
-      }
-    } else if (passport_element_type == "internal_passport" || passport_element_type == "ip") {
-      if (!input_files.empty()) {
-        auto front_side = std::move(input_files[0]);
-        input_files.erase(input_files.begin());
-        return td_api::make_object<td_api::inputPassportElementInternalPassport>(
-            td_api::make_object<td_api::inputIdentityDocument>("1234567890", nullptr, std::move(front_side), nullptr,
-                                                               std::move(selfie), std::move(input_files)));
-      }
-    } else if (passport_element_type == "rental_agreement" || passport_element_type == "ra") {
-      vector<td_api::object_ptr<td_api::InputFile>> translation;
-      if (selfie != nullptr) {
-        translation.push_back(std::move(selfie));
-      }
-      return td_api::make_object<td_api::inputPassportElementRentalAgreement>(
-          td_api::make_object<td_api::inputPersonalDocument>(std::move(input_files), std::move(translation)));
-    }
-
-    LOG(ERROR) << "Unsupported passport element type " << passport_element_type;
-    return nullptr;
-  }
-
-  static td_api::object_ptr<td_api::languagePackInfo> as_language_pack_info(const string &language_code,
-                                                                            const string &name,
-                                                                            const string &native_name) {
-    return td_api::make_object<td_api::languagePackInfo>(language_code, "test", name, native_name, "en", true, true,
-                                                         true, true, -1, 5, 3, "abacaba");
-  }
-
-  td_api::object_ptr<td_api::MessageSelfDestructType> get_message_self_destruct_type() const {
-    if (message_self_destruct_time_ == -1) {
-      return td_api::make_object<td_api::messageSelfDestructTypeImmediately>();
-    }
-    if (message_self_destruct_time_ > 0) {
-      return td_api::make_object<td_api::messageSelfDestructTypeTimer>(message_self_destruct_time_);
-    }
-    return nullptr;
-  }
-
-  static td_api::object_ptr<td_api::MessageSchedulingState> as_message_scheduling_state(Slice date) {
-    date = trim(date);
-    if (date.empty()) {
-      return nullptr;
-    }
-    auto send_date = to_integer<int32>(date);
-    if (send_date == -1) {
-      return td_api::make_object<td_api::messageSchedulingStateSendWhenOnline>();
-    }
-    return td_api::make_object<td_api::messageSchedulingStateSendAtDate>(send_date);
-  }
-
-  static td_api::object_ptr<td_api::themeParameters> as_theme_parameters() {
-    return td_api::make_object<td_api::themeParameters>(0, 1, -1, 123, 256, 65536, 123456789, 65535, 5, 55, 555, 5555,
-                                                        55555, 555555, 123);
-  }
-
-  static td_api::object_ptr<td_api::webAppOpenParameters> as_web_app_open_parameters() {
-    return td_api::make_object<td_api::webAppOpenParameters>(as_theme_parameters(), "android",
-                                                             td_api::make_object<td_api::webAppOpenModeFullScreen>());
-  }
-
-  static td_api::object_ptr<td_api::BackgroundFill> as_background_fill(int32 color) {
-    return td_api::make_object<td_api::backgroundFillSolid>(color);
-  }
-
-  static td_api::object_ptr<td_api::BackgroundFill> as_background_fill(int32 top_color, int32 bottom_color) {
-    return td_api::make_object<td_api::backgroundFillGradient>(top_color, bottom_color, Random::fast(1, 7) * 45);
-  }
-
-  static td_api::object_ptr<td_api::BackgroundFill> as_background_fill(vector<int32> colors) {
-    return td_api::make_object<td_api::backgroundFillFreeformGradient>(std::move(colors));
-  }
-
-  static td_api::object_ptr<td_api::backgroundTypeWallpaper> as_wallpaper_background(bool is_blurred, bool is_moving) {
-    return td_api::make_object<td_api::backgroundTypeWallpaper>(is_blurred, is_moving);
-  }
-
-  static td_api::object_ptr<td_api::BackgroundType> as_solid_pattern_background(int32 color, int32 intensity,
-                                                                                bool is_moving) {
-    return as_gradient_pattern_background(color, color, intensity, false, is_moving);
-  }
-
-  static td_api::object_ptr<td_api::BackgroundType> as_gradient_pattern_background(int32 top_color, int32 bottom_color,
-                                                                                   int32 intensity, bool is_inverted,
-                                                                                   bool is_moving) {
-    return td_api::make_object<td_api::backgroundTypePattern>(as_background_fill(top_color, bottom_color), intensity,
-                                                              is_inverted, is_moving);
-  }
-
-  static td_api::object_ptr<td_api::BackgroundType> as_freeform_gradient_pattern_background(vector<int32> colors,
-                                                                                            int32 intensity,
-                                                                                            bool is_inverted,
-                                                                                            bool is_moving) {
-    return td_api::make_object<td_api::backgroundTypePattern>(as_background_fill(std::move(colors)), intensity,
-                                                              is_inverted, is_moving);
-  }
-
-  static td_api::object_ptr<td_api::BackgroundType> as_solid_background(int32 color) {
-    return td_api::make_object<td_api::backgroundTypeFill>(as_background_fill(color));
-  }
-
-  static td_api::object_ptr<td_api::BackgroundType> as_gradient_background(int32 top_color, int32 bottom_color) {
-    return td_api::make_object<td_api::backgroundTypeFill>(as_background_fill(top_color, bottom_color));
-  }
-
-  static td_api::object_ptr<td_api::BackgroundType> as_freeform_gradient_background(vector<int32> colors) {
-    return td_api::make_object<td_api::backgroundTypeFill>(as_background_fill(std::move(colors)));
-  }
-
-  static td_api::object_ptr<td_api::BackgroundType> as_chat_theme_background(const string &theme_name) {
-    return td_api::make_object<td_api::backgroundTypeChatTheme>(theme_name);
-  }
-
-  td_api::object_ptr<td_api::phoneNumberAuthenticationSettings> as_phone_number_authentication_settings() const {
-    return td_api::make_object<td_api::phoneNumberAuthenticationSettings>(false, true, false, false, false, nullptr,
-                                                                          vector<string>(authentication_tokens_));
-  }
-
-  static td_api::object_ptr<td_api::Object> execute(td_api::object_ptr<td_api::Function> f) {
-    if (combined_log.get_first_verbosity_level() < get_log_tag_verbosity_level("td_requests")) {
-      LOG(ERROR) << "Execute request: " << to_string(f);
-    }
-    auto res = ClientActor::execute(std::move(f));
-    if (combined_log.get_first_verbosity_level() < get_log_tag_verbosity_level("td_requests")) {
-      LOG(ERROR) << "Execute response: " << to_string(res);
-    }
-    return res;
-  }
-
-  uint64 send_request(td_api::object_ptr<td_api::Function> f) {
-    static uint64 query_num = 1;
-    if (!td_client_.empty()) {
-      auto id = query_num++;
-      send_closure_later(td_client_, &ClientActor::request, id, std::move(f));
-      return id;
-    } else {
-      LOG(ERROR) << "Failed to send: " << to_string(f);
-      return 0;
-    }
-  }
-
-  static int32 get_log_tag_verbosity_level(const string &name) {
-    auto level = ClientActor::execute(td_api::make_object<td_api::getLogTagVerbosityLevel>(name));
-    if (level->get_id() == td_api::error::ID) {
-      return -1;
-    }
-    CHECK(level->get_id() == td_api::logVerbosityLevel::ID);
-    return static_cast<const td_api::logVerbosityLevel *>(level.get())->verbosity_level_;
-  }
-
-  void send_message(int64 chat_id, td_api::object_ptr<td_api::InputMessageContent> &&input_message_content,
-                    bool disable_notification = false, bool from_background = false) {
-    if (!business_connection_id_.empty()) {
-      send_request(td_api::make_object<td_api::sendBusinessMessage>(
-          business_connection_id_, chat_id, get_input_message_reply_to(), disable_notification, rand_bool(),
-          message_effect_id_, nullptr, std::move(input_message_content)));
-      return;
-    }
-    if (!quick_reply_shortcut_name_.empty()) {
-      send_request(td_api::make_object<td_api::addQuickReplyShortcutMessage>(
-          quick_reply_shortcut_name_, reply_message_id_, std::move(input_message_content)));
-      return;
-    }
-    auto id = send_request(td_api::make_object<td_api::sendMessage>(
-        chat_id, message_thread_id_, get_input_message_reply_to(),
-        td_api::make_object<td_api::messageSendOptions>(
-            disable_notification, from_background, false, use_test_dc_, paid_message_star_count_, false,
-            as_message_scheduling_state(schedule_date_), message_effect_id_, Random::fast(1, 1000), only_preview_),
-        nullptr, std::move(input_message_content)));
-    if (id != 0) {
-      query_id_to_send_message_info_[id].start_time = Time::now();
-    }
-  }
-
-  td_api::object_ptr<td_api::messageSendOptions> default_message_send_options() const {
-    return td_api::make_object<td_api::messageSendOptions>(false, false, false, use_test_dc_, paid_message_star_count_,
-                                                           true, as_message_scheduling_state(schedule_date_),
-                                                           message_effect_id_, Random::fast(1, 1000), only_preview_);
-  }
-
-  void send_get_background_url(td_api::object_ptr<td_api::BackgroundType> &&background_type) {
-    send_request(td_api::make_object<td_api::getBackgroundUrl>("asd", std::move(background_type)));
-  }
-
-  void on_cmd(string cmd) {
-    for (size_t i = 0; i < cmd.size();) {
-      // https://en.wikipedia.org/wiki/ANSI_escape_code#Terminal_input_sequences
-      if (cmd[i] == 27 && cmd[i + 1] == '[') {
-        // likely an ANSI escape code
-        auto j = i + 2;
-        if ('1' <= cmd[j] && cmd[j] <= '9') {
-          while ('0' <= cmd[j] && cmd[j] <= '9') {
-            j++;
-          }
-        }
-        if ('A' <= cmd[j] && cmd[j] <= 'Z') {
-          // xterm sequence
-          cmd = cmd.substr(0, i) + cmd.substr(j + 1);
-          continue;
-        }
-        if (cmd[j] == ';' && '1' <= cmd[j + 1] && cmd[j + 1] <= '9') {
-          j += 2;
-          while ('0' <= cmd[j] && cmd[j] <= '9') {
-            j++;
-          }
-        }
-        if (cmd[j] == '~') {
-          // vt sequence
-          cmd = cmd.substr(0, i) + cmd.substr(j + 1);
-          continue;
-        }
-      }
-      i++;
-    }
-    td::remove_if(cmd, [](unsigned char c) { return c < 32; });
-    LOG(INFO) << "CMD:[" << cmd << "]";
-
-    string op;
-    string args;
-    std::tie(op, args) = split(cmd);
-
-    const int32 OP_BLOCK_COUNT = 19;
-    int32 op_not_found_count = 0;
-
-    if (op == "gas") {
-      LOG(ERROR) << to_string(authorization_state_);
-    } else if (op == "sap" || op == "sapn") {
-      send_request(
-          td_api::make_object<td_api::setAuthenticationPhoneNumber>(args, as_phone_number_authentication_settings()));
-    } else if (op == "sae" || op == "saea") {
-      send_request(td_api::make_object<td_api::setAuthenticationEmailAddress>(args));
-    } else if (op == "rac") {
-      send_request(td_api::make_object<td_api::resendAuthenticationCode>(nullptr));
-    } else if (op == "sdek") {
-      send_request(td_api::make_object<td_api::setDatabaseEncryptionKey>(args));
-    } else if (op == "caec") {
-      send_request(td_api::make_object<td_api::checkAuthenticationEmailCode>(as_email_address_authentication(args)));
-    } else if (op == "cac") {
-      send_request(td_api::make_object<td_api::checkAuthenticationCode>(args));
-    } else if (op == "racmg") {
-      send_request(td_api::make_object<td_api::reportAuthenticationCodeMissing>(args));
-    } else if (op == "ru" || op == "rus") {
-      string first_name;
-      string last_name;
-      get_args(args, first_name, last_name);
-      send_request(td_api::make_object<td_api::registerUser>(first_name, last_name, op == "rus"));
-    } else if (op == "cap") {
-      send_request(td_api::make_object<td_api::checkAuthenticationPassword>(args));
-    } else if (op == "cabt") {
-      send_request(td_api::make_object<td_api::checkAuthenticationBotToken>(args));
-    } else if (op == "qr") {
-      send_request(td_api::make_object<td_api::requestQrCodeAuthentication>(as_user_ids(args)));
-    } else if (op == "cqr") {
-      send_request(td_api::make_object<td_api::confirmQrCodeAuthentication>(args));
-    } else if (op == "gcs") {
-      send_request(td_api::make_object<td_api::getCurrentState>());
-    } else if (op == "raea") {
-      send_request(td_api::make_object<td_api::resetAuthenticationEmailAddress>());
-    } else if (op == "rapr") {
-      send_request(td_api::make_object<td_api::requestAuthenticationPasswordRecovery>());
-    } else if (op == "caprc") {
-      string recovery_code = args;
-      send_request(td_api::make_object<td_api::checkAuthenticationPasswordRecoveryCode>(recovery_code));
-    } else if (op == "rap") {
-      string recovery_code;
-      string new_password;
-      string new_hint;
-      get_args(args, recovery_code, new_password, new_hint);
-      send_request(td_api::make_object<td_api::recoverAuthenticationPassword>(recovery_code, new_password, new_hint));
-    } else if (op == "lo") {
-      send_request(td_api::make_object<td_api::logOut>());
-    } else if (op == "destroy") {
-      send_request(td_api::make_object<td_api::destroy>());
-    } else if (op == "reset") {
-      td_client_.reset();
-    } else if (op == "close_td") {
-      // send_request(td_api::make_object<td_api::getCurrentState>());
-      send_request(td_api::make_object<td_api::close>());
-      // send_request(td_api::make_object<td_api::getCurrentState>());
-      // send_request(td_api::make_object<td_api::close>());
-    } else if (op == "DeleteAccountYesIReallyWantToDeleteMyAccount") {
-      string password;
-      string reason;
-      get_args(args, password, reason);
-      send_request(td_api::make_object<td_api::deleteAccount>(reason, password));
-    } else if (op == "gps") {
-      send_request(td_api::make_object<td_api::getPasswordState>());
-    } else if (op == "spass") {
-      string password;
-      string new_password;
-      string new_hint;
-      string recovery_email_address;
-      get_args(args, password, new_password, new_hint, recovery_email_address);
-      if (password == "#") {
-        password = "";
-      }
-      if (new_password == "#") {
-        new_password = "";
-      }
-      if (new_hint == "#") {
-        new_hint = "";
-      }
-      if (recovery_email_address == "#") {
-        recovery_email_address = "";
-      }
-      send_request(
-          td_api::make_object<td_api::setPassword>(password, new_password, new_hint, true, recovery_email_address));
-    } else if (op == "gpafhttp") {
-      ChainBufferWriter writer;
-      writer.append(PSLICE() << "GET " << args << " HTTP/1.1\r\n\r\n\r\n");
-      ChainBufferReader reader = writer.extract_reader();
-      HttpReader http_reader;
-      http_reader.init(&reader);
-      HttpQuery query;
-      auto r_size = http_reader.read_next(&query);
-      if (r_size.is_error()) {
-        LOG(ERROR) << r_size.error();
-        return;
-      }
-      string bot_user_id = query.get_arg("bot_id").str();
-      string scope = query.get_arg("scope").str();
-      string public_key = query.get_arg("public_key").str();
-      string payload = query.get_arg("payload").str();
-      LOG(INFO) << "Callback URL:" << query.get_arg("callback_url");
-      send_request(td_api::make_object<td_api::getPassportAuthorizationForm>(as_user_id(bot_user_id), scope, public_key,
-                                                                             payload));
-    } else if (op == "gpaf") {
-      UserId bot_user_id;
-      string scope;
-      string public_key =
-          "-----BEGIN PUBLIC KEY-----\n"
-          "MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAzmgKr0fPP4rB/TsNEweC\n"
-          "hoG3ntUxuBTmHsFBW6CpABGdaTmKZSjAI/cTofhBgtRQIOdX0YRGHHHhwyLf49Wv\n"
-          "9l+XexbJOa0lTsJSNMj8Y/9sZbqUl5ur8ZOTM0sxbXC0XKexu1tM9YavH+Lbrobk\n"
-          "jt0+cmo/zEYZWNtLVihnR2IDv+7tSgiDoFWi/koAUdfJ1VMw+hReUaLg3vE9CmPK\n"
-          "tQiTy+NvmrYaBPb75I0Jz3Lrz1+mZSjLKO25iT84RIsxarBDd8iYh2avWkCmvtiR\n"
-          "Lcif8wLxi2QWC1rZoCA3Ip+Hg9J9vxHlzl6xT01WjUStMhfwrUW6QBpur7FJ+aKM\n"
-          "oaMoHieFNCG4qIkWVEHHSsUpLum4SYuEnyNH3tkjbrdldZanCvanGq+TZyX0buRt\n"
-          "4zk7FGcu8iulUkAP/o/WZM0HKinFN/vuzNVA8iqcO/BBhewhzpqmmTMnWmAO8WPP\n"
-          "DJMABRtXJnVuPh1CI5pValzomLJM4/YvnJGppzI1QiHHNA9JtxVmj2xf8jaXa1LJ\n"
-          "WUNJK+RvUWkRUxpWiKQQO9FAyTPLRtDQGN9eUeDR1U0jqRk/gNT8smHGN6I4H+NR\n"
-          "3X3/1lMfcm1dvk654ql8mxjCA54IpTPr/icUMc7cSzyIiQ7Tp9PZTl1gHh281ZWf\n"
-          "P7d2+fuJMlkjtM7oAwf+tI8CAwEAAQ==\n"
-          "-----END PUBLIC KEY-----";
-      string payload;
-      get_args(args, bot_user_id, scope, payload);
-      send_request(td_api::make_object<td_api::getPassportAuthorizationForm>(bot_user_id, scope, public_key, payload));
-    } else if (op == "gpafae") {
-      int32 form_id;
-      string password;
-      get_args(args, form_id, password);
-      send_request(td_api::make_object<td_api::getPassportAuthorizationFormAvailableElements>(form_id, password));
-    } else if (op == "spaf") {
-      int32 form_id;
-      string types;
-      get_args(args, form_id, types);
-      send_request(
-          td_api::make_object<td_api::sendPassportAuthorizationForm>(form_id, as_passport_element_types(types)));
-    } else if (op == "gpcl") {
-      send_request(td_api::make_object<td_api::getPreferredCountryLanguage>(args));
-    } else if (op == "seavc") {
-      send_request(td_api::make_object<td_api::sendEmailAddressVerificationCode>(args));
-    } else if (op == "ceavc") {
-      send_request(td_api::make_object<td_api::checkEmailAddressVerificationCode>(args));
-    } else if (op == "reavc") {
-      send_request(td_api::make_object<td_api::resendEmailAddressVerificationCode>());
-    } else if (op == "slea") {
-      send_request(td_api::make_object<td_api::setLoginEmailAddress>(args));
-    } else if (op == "rleac") {
-      send_request(td_api::make_object<td_api::resendLoginEmailAddressCode>());
-    } else if (op == "cleac") {
-      send_request(td_api::make_object<td_api::checkLoginEmailAddressCode>(as_email_address_authentication(args)));
-    } else if (op == "srea") {
-      string password;
-      string recovery_email_address;
-      get_args(args, password, recovery_email_address);
-      send_request(td_api::make_object<td_api::setRecoveryEmailAddress>(password, recovery_email_address));
-    } else if (op == "grea") {
-      send_request(td_api::make_object<td_api::getRecoveryEmailAddress>(args));
-    } else if (op == "creac") {
-      send_request(td_api::make_object<td_api::checkRecoveryEmailAddressCode>(args));
-    } else if (op == "rreac") {
-      send_request(td_api::make_object<td_api::resendRecoveryEmailAddressCode>());
-    } else if (op == "creav") {
-      send_request(td_api::make_object<td_api::cancelRecoveryEmailAddressVerification>());
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "rpr") {
-      send_request(td_api::make_object<td_api::requestPasswordRecovery>());
-    } else if (op == "cprc") {
-      string recovery_code = args;
-      send_request(td_api::make_object<td_api::checkPasswordRecoveryCode>(recovery_code));
-    } else if (op == "rp") {
-      string recovery_code;
-      string new_password;
-      string new_hint;
-      get_args(args, recovery_code, new_password, new_hint);
-      send_request(td_api::make_object<td_api::recoverPassword>(recovery_code, new_password, new_hint));
-    } else if (op == "resetp") {
-      send_request(td_api::make_object<td_api::resetPassword>());
-    } else if (op == "cpr") {
-      send_request(td_api::make_object<td_api::cancelPasswordReset>());
-    } else if (op == "gtp") {
-      send_request(td_api::make_object<td_api::getTemporaryPasswordState>());
-    } else if (op == "ctp") {
-      send_request(td_api::make_object<td_api::createTemporaryPassword>(args, 60 * 6));
-    } else if (op == "gpe") {
-      string password;
-      string passport_element_type;
-      get_args(args, password, passport_element_type);
-      send_request(
-          td_api::make_object<td_api::getPassportElement>(as_passport_element_type(passport_element_type), password));
-    } else if (op == "gape") {
-      string password = args;
-      send_request(td_api::make_object<td_api::getAllPassportElements>(password));
-    } else if (op == "spe" || op == "spes") {
-      string password;
-      string passport_element_type;
-      string arg;
-      get_args(args, password, passport_element_type, arg);
-      send_request(td_api::make_object<td_api::setPassportElement>(
-          as_input_passport_element(passport_element_type, arg, op == "spes"), password));
-    } else if (op == "dpe") {
-      const string &passport_element_type = args;
-      send_request(td_api::make_object<td_api::deletePassportElement>(as_passport_element_type(passport_element_type)));
-    } else if (op == "ppn") {
-      send_request(td_api::make_object<td_api::processPushNotification>(args));
-    } else if (op == "gpri") {
-      send_request(td_api::make_object<td_api::getPushReceiverId>(args));
-    } else if (op == "rda") {
-      send_request(td_api::make_object<td_api::registerDevice>(
-          td_api::make_object<td_api::deviceTokenApplePush>(args, true), as_user_ids("")));
-    } else if (op == "rdb") {
-      send_request(td_api::make_object<td_api::registerDevice>(
-          td_api::make_object<td_api::deviceTokenBlackBerryPush>(args), as_user_ids("")));
-    } else if (op == "rdf") {
-      send_request(td_api::make_object<td_api::registerDevice>(
-          td_api::make_object<td_api::deviceTokenFirebaseCloudMessaging>(args, true), as_user_ids("")));
-    } else if (op == "rdt") {
-      string token;
-      string other_user_ids_str;
-      get_args(args, token, other_user_ids_str);
-      send_request(td_api::make_object<td_api::registerDevice>(td_api::make_object<td_api::deviceTokenTizenPush>(token),
-                                                               as_user_ids(other_user_ids_str)));
-    } else if (op == "rdu") {
-      string token;
-      string other_user_ids_str;
-      get_args(args, token, other_user_ids_str);
-      send_request(td_api::make_object<td_api::registerDevice>(
-          td_api::make_object<td_api::deviceTokenUbuntuPush>(token), as_user_ids(other_user_ids_str)));
-    } else if (op == "rdw") {
-      string endpoint;
-      string key;
-      string secret;
-      string other_user_ids_str;
-      get_args(args, endpoint, key, secret, other_user_ids_str);
-      send_request(td_api::make_object<td_api::registerDevice>(
-          td_api::make_object<td_api::deviceTokenWebPush>(endpoint, key, secret), as_user_ids(other_user_ids_str)));
-    } else if (op == "gbci") {
-      send_request(td_api::make_object<td_api::getBankCardInfo>(args));
-    } else if (op == "gpf") {
-      InputInvoice input_invoice;
-      get_args(args, input_invoice);
-      send_request(td_api::make_object<td_api::getPaymentForm>(input_invoice, as_theme_parameters()));
-    } else if (op == "voi") {
-      InputInvoice input_invoice;
-      bool allow_save;
-      get_args(args, input_invoice, allow_save);
-      send_request(td_api::make_object<td_api::validateOrderInfo>(input_invoice, nullptr, allow_save));
-    } else if (op == "spfs") {
-      InputInvoice input_invoice;
-      int64 tip_amount;
-      int64 payment_form_id;
-      string order_info_id;
-      string shipping_option_id;
-      string saved_credentials_id;
-      get_args(args, input_invoice, tip_amount, payment_form_id, order_info_id, shipping_option_id,
-               saved_credentials_id);
-      send_request(td_api::make_object<td_api::sendPaymentForm>(
-          input_invoice, payment_form_id, order_info_id, shipping_option_id,
-          td_api::make_object<td_api::inputCredentialsSaved>(saved_credentials_id), tip_amount));
-    } else if (op == "spfn") {
-      InputInvoice input_invoice;
-      int64 tip_amount;
-      int64 payment_form_id;
-      string order_info_id;
-      string shipping_option_id;
-      string data;
-      get_args(args, input_invoice, tip_amount, payment_form_id, order_info_id, shipping_option_id, data);
-      send_request(td_api::make_object<td_api::sendPaymentForm>(
-          input_invoice, payment_form_id, order_info_id, shipping_option_id,
-          td_api::make_object<td_api::inputCredentialsNew>(data, true), tip_amount));
-    } else if (op == "spfstar") {
-      InputInvoice input_invoice;
-      int64 payment_form_id;
-      get_args(args, input_invoice, payment_form_id);
-      send_request(
-          td_api::make_object<td_api::sendPaymentForm>(input_invoice, payment_form_id, string(), string(), nullptr, 0));
-    } else if (op == "gpre") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getPaymentReceipt>(chat_id, message_id));
-    } else if (op == "gsoi") {
-      send_request(td_api::make_object<td_api::getSavedOrderInfo>());
-    } else if (op == "dsoi") {
-      send_request(td_api::make_object<td_api::deleteSavedOrderInfo>());
-    } else if (op == "dsc") {
-      send_request(td_api::make_object<td_api::deleteSavedCredentials>());
-    } else if (op == "sgss") {
-      bool show_button;
-      bool unlimited_gifts;
-      bool limited_gifts;
-      bool upgraded_gifts;
-      bool premium_subscription;
-      get_args(args, show_button, unlimited_gifts, limited_gifts, upgraded_gifts, premium_subscription);
-      send_request(td_api::make_object<td_api::setGiftSettings>(td_api::make_object<td_api::giftSettings>(
-          show_button, td_api::make_object<td_api::acceptedGiftTypes>(unlimited_gifts, limited_gifts, upgraded_gifts,
-                                                                      premium_subscription))));
-    } else if (op == "gag") {
-      send_request(td_api::make_object<td_api::getAvailableGifts>());
-    } else if (op == "sendg" || op == "sendgp" || op == "sgift") {
-      int64 gift_id;
-      string owner_id;
-      bool pay_for_upgrade;
-      string text;
-      get_args(args, gift_id, owner_id, pay_for_upgrade, text);
-      send_request(td_api::make_object<td_api::sendGift>(gift_id, as_message_sender(owner_id), as_formatted_text(text),
-                                                         op == "sendgp", pay_for_upgrade));
-    } else if (op == "sellg") {
-      string star_gift_id;
-      get_args(args, star_gift_id);
-      send_request(td_api::make_object<td_api::sellGift>(business_connection_id_, star_gift_id));
-    } else if (op == "tgis") {
-      string star_gift_id;
-      bool is_saved;
-      get_args(args, star_gift_id, is_saved);
-      send_request(td_api::make_object<td_api::toggleGiftIsSaved>(star_gift_id, is_saved));
-    } else if (op == "spg") {
-      string owner_id;
-      string received_story_ids;
-      get_args(args, owner_id, received_story_ids);
-      send_request(
-          td_api::make_object<td_api::setPinnedGifts>(as_message_sender(owner_id), full_split(received_story_ids)));
-    } else if (op == "tcgn") {
-      ChatId chat_id;
-      bool are_enabled;
-      get_args(args, chat_id, are_enabled);
-      send_request(td_api::make_object<td_api::toggleChatGiftNotifications>(chat_id, are_enabled));
-    } else if (op == "ggup") {
-      int64 gift_id;
-      get_args(args, gift_id);
-      send_request(td_api::make_object<td_api::getGiftUpgradePreview>(gift_id));
-    } else if (op == "ug") {
-      string received_gift_id;
-      bool keep_original_details;
-      int64 star_count;
-      get_args(args, received_gift_id, keep_original_details, star_count);
-      send_request(td_api::make_object<td_api::upgradeGift>(business_connection_id_, received_gift_id,
-                                                            keep_original_details, star_count));
-    } else if (op == "tg") {
-      string received_gift_id;
-      string new_owner_id;
-      int64 star_count;
-      get_args(args, received_gift_id, new_owner_id, star_count);
-      send_request(td_api::make_object<td_api::transferGift>(business_connection_id_, received_gift_id,
-                                                             as_message_sender(new_owner_id), star_count));
-    } else if (op == "grgs" || op == "grgsp") {
-      string owner_id;
-      int32 limit;
-      string offset;
-      bool exclude_unsaved;
-      bool exclude_saved;
-      bool exclude_unlimited;
-      bool exclude_limited;
-      bool exclude_upgraded;
-      get_args(args, owner_id, limit, offset, exclude_unsaved, exclude_saved, exclude_unlimited, exclude_limited,
-               exclude_upgraded);
-      send_request(td_api::make_object<td_api::getReceivedGifts>(
-          business_connection_id_, as_message_sender(owner_id), exclude_unsaved, exclude_saved, exclude_unlimited,
-          exclude_limited, exclude_upgraded, op == "grgsp", offset, limit));
-    } else if (op == "grg") {
-      string received_gift_id;
-      get_args(args, received_gift_id);
-      send_request(td_api::make_object<td_api::getReceivedGift>(received_gift_id));
-    } else if (op == "gug") {
-      string name;
-      get_args(args, name);
-      send_request(td_api::make_object<td_api::getUpgradedGift>(name));
-    } else if (op == "gugwu") {
-      string received_gift_id;
-      string password;
-      get_args(args, received_gift_id, password);
-      send_request(td_api::make_object<td_api::getUpgradedGiftWithdrawalUrl>(received_gift_id, password));
-    } else if (op == "rsp") {
-      UserId user_id;
-      string telegram_payment_charge_id;
-      get_args(args, user_id, telegram_payment_charge_id);
-      send_request(td_api::make_object<td_api::refundStarPayment>(user_id, telegram_payment_charge_id));
-    } else if (op == "gpr") {
-      send_request(td_api::make_object<td_api::getUserPrivacySettingRules>(as_user_privacy_setting(args)));
-    } else if (op == "spr") {
-      string setting;
-      PrivacyRules rules;
-      get_args(args, setting, rules);
-      send_request(td_api::make_object<td_api::setUserPrivacySettingRules>(as_user_privacy_setting(setting), rules));
-    } else if (op == "spncc") {
-      send_request(td_api::make_object<td_api::sendPhoneNumberCode>(
-          args, nullptr, td_api::make_object<td_api::phoneNumberCodeTypeChange>()));
-    } else if (op == "spncv") {
-      send_request(td_api::make_object<td_api::sendPhoneNumberCode>(
-          args, nullptr, td_api::make_object<td_api::phoneNumberCodeTypeVerify>()));
-    } else if (op == "spncco") {
-      string hash;
-      string phone_number;
-      get_args(args, hash, phone_number);
-      send_request(td_api::make_object<td_api::sendPhoneNumberCode>(
-          phone_number, nullptr, td_api::make_object<td_api::phoneNumberCodeTypeConfirmOwnership>(hash)));
-    } else if (op == "spnfs") {
-      send_request(td_api::make_object<td_api::sendPhoneNumberFirebaseSms>(args));
-    } else if (op == "rpncm") {
-      send_request(td_api::make_object<td_api::reportPhoneNumberCodeMissing>(args));
-    } else if (op == "rpnc") {
-      send_request(td_api::make_object<td_api::resendPhoneNumberCode>(nullptr));
-    } else if (op == "cpnc") {
-      send_request(td_api::make_object<td_api::checkPhoneNumberCode>(args));
-    } else if (op == "gco") {
-      if (args.empty()) {
-        send_request(td_api::make_object<td_api::getContacts>());
-      } else {
-        send_request(td_api::make_object<td_api::searchContacts>("", as_limit(args)));
-      }
-    } else if (op == "gcfr") {
-      send_request(td_api::make_object<td_api::getCloseFriends>());
-    } else if (op == "scfr") {
-      send_request(td_api::make_object<td_api::setCloseFriends>(as_user_ids(args)));
-    } else if (op == "gul") {
-      send_request(td_api::make_object<td_api::getUserLink>());
-    } else if (op == "subt") {
-      send_request(td_api::make_object<td_api::searchUserByToken>(args));
-    } else if (op == "aco") {
-      UserId user_id;
-      string first_name;
-      string last_name;
-      get_args(args, user_id, first_name, last_name);
-      send_request(td_api::make_object<td_api::addContact>(
-          td_api::make_object<td_api::contact>(string(), first_name, last_name, string(), user_id), false));
-    } else if (op == "subpn" || op == "subpnl") {
-      string phone_number;
-      get_args(args, phone_number);
-      send_request(td_api::make_object<td_api::searchUserByPhoneNumber>(phone_number, op == "subpnl"));
-    } else if (op == "spn") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::sharePhoneNumber>(user_id));
-    } else if (op == "ic" || op == "cic") {
-      vector<string> contacts_str = full_split(args, ';');
-      vector<td_api::object_ptr<td_api::contact>> contacts;
-      for (auto c : contacts_str) {
-        string phone_number;
-        string first_name;
-        string last_name;
-        std::tie(phone_number, c) = split(c, ',');
-        std::tie(first_name, last_name) = split(c, ',');
-        contacts.push_back(td_api::make_object<td_api::contact>(phone_number, first_name, last_name, string(), 0));
-      }
-      if (op == "cic") {
-        send_request(td_api::make_object<td_api::changeImportedContacts>(std::move(contacts)));
-      } else {
-        send_request(td_api::make_object<td_api::importContacts>(std::move(contacts)));
-      }
-    } else if (op == "rco") {
-      send_request(td_api::make_object<td_api::removeContacts>(as_user_ids(args)));
-    } else if (op == "gicc") {
-      send_request(td_api::make_object<td_api::getImportedContactCount>());
-    } else if (op == "cico") {
-      send_request(td_api::make_object<td_api::clearImportedContacts>());
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "gc" || op == "gca" || begins_with(op, "gc-")) {
-      send_request(td_api::make_object<td_api::getChats>(as_chat_list(op), as_limit(args, 10000)));
-    } else if (op == "lc" || op == "lca" || begins_with(op, "lc-")) {
-      send_request(td_api::make_object<td_api::loadChats>(as_chat_list(op), as_limit(args, 10000)));
-    } else if (op == "gctest") {
-      send_request(td_api::make_object<td_api::getChats>(nullptr, 1));
-      send_request(td_api::make_object<td_api::getChats>(nullptr, 10));
-      send_request(td_api::make_object<td_api::getChats>(nullptr, 5));
-    } else if (op == "lsmt") {
-      string limit;
-      get_args(args, limit);
-      send_request(td_api::make_object<td_api::loadSavedMessagesTopics>(as_limit(limit)));
-    } else if (op == "gsmth") {
-      MessageId from_message_id;
-      int32 offset;
-      string limit;
-      get_args(args, from_message_id, offset, limit);
-      send_request(td_api::make_object<td_api::getSavedMessagesTopicHistory>(get_saved_messages_topic_id(),
-                                                                             from_message_id, offset, as_limit(limit)));
-    } else if (op == "gsmtmbd") {
-      send_request(td_api::make_object<td_api::getSavedMessagesTopicMessageByDate>(get_saved_messages_topic_id(),
-                                                                                   to_integer<int32>(args)));
-    } else if (op == "dsmth" && args.empty()) {
-      send_request(td_api::make_object<td_api::deleteSavedMessagesTopicHistory>(get_saved_messages_topic_id()));
-    } else if (op == "dsmtmbd") {
-      int32 min_date;
-      int32 max_date;
-      get_args(args, min_date, max_date);
-      send_request(td_api::make_object<td_api::deleteSavedMessagesTopicMessagesByDate>(get_saved_messages_topic_id(),
-                                                                                       min_date, max_date));
-    } else if (op == "tsmtip") {
-      bool is_pinned;
-      get_args(args, is_pinned);
-      send_request(
-          td_api::make_object<td_api::toggleSavedMessagesTopicIsPinned>(get_saved_messages_topic_id(), is_pinned));
-    } else if (op == "spsmt") {
-      send_request(td_api::make_object<td_api::setPinnedSavedMessagesTopics>(
-          transform(autosplit(args), [this](Slice str) { return as_saved_messages_topic_id(as_chat_id(str)); })));
-    } else if (op == "gcc") {
-      UserId user_id;
-      ChatId offset_chat_id;
-      string limit;
-      get_args(args, user_id, offset_chat_id, limit);
-      send_request(td_api::make_object<td_api::getGroupsInCommon>(user_id, offset_chat_id, as_limit(limit, 100)));
-    } else if (op == "gh" || op == "ghl" || op == "gmth") {
-      ChatId chat_id;
-      MessageId thread_message_id;
-      MessageId from_message_id;
-      int32 offset;
-      string limit;
-      get_args(args, chat_id, args);
-      if (op == "gmth") {
-        get_args(args, thread_message_id, args);
-      }
-      get_args(args, from_message_id, offset, limit);
-      if (op == "gmth") {
-        send_request(td_api::make_object<td_api::getMessageThreadHistory>(chat_id, thread_message_id, from_message_id,
-                                                                          offset, as_limit(limit)));
-      } else {
-        send_request(td_api::make_object<td_api::getChatHistory>(chat_id, from_message_id, offset, as_limit(limit),
-                                                                 op == "ghl"));
-      }
-    } else if (op == "gcsm") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatScheduledMessages>(chat_id));
-    } else if (op == "sdrt") {
-      string reaction;
-      get_args(args, reaction);
-      send_request(td_api::make_object<td_api::setDefaultReactionType>(as_reaction_type(reaction)));
-    } else if (op == "ger") {
-      string emoji;
-      get_args(args, emoji);
-      send_request(td_api::make_object<td_api::getEmojiReaction>(emoji));
-    } else if (op == "gcera") {
-      send_request(td_api::make_object<td_api::getCustomEmojiReactionAnimations>());
-    } else if (op == "gmar") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getMessageAvailableReactions>(chat_id, message_id, 8));
-    } else if (op == "crr") {
-      send_request(td_api::make_object<td_api::clearRecentReactions>());
-    } else if (op == "amr" || op == "react") {
-      ChatId chat_id;
-      MessageId message_id;
-      string reaction;
-      bool is_big;
-      bool update_recent_reactions;
-      get_args(args, chat_id, message_id, reaction, is_big, update_recent_reactions);
-      send_request(td_api::make_object<td_api::addMessageReaction>(chat_id, message_id, as_reaction_type(reaction),
-                                                                   is_big, update_recent_reactions));
-    } else if (op == "rmr") {
-      ChatId chat_id;
-      MessageId message_id;
-      string reaction;
-      get_args(args, chat_id, message_id, reaction);
-      send_request(td_api::make_object<td_api::removeMessageReaction>(chat_id, message_id, as_reaction_type(reaction)));
-    } else if (op == "reactbot" || op == "reactbotbig") {
-      ChatId chat_id;
-      MessageId message_id;
-      string reactions;
-      get_args(args, chat_id, message_id, reactions);
-      auto reaction_types = transform(autosplit_str(reactions), as_reaction_type);
-      send_request(td_api::make_object<td_api::setMessageReactions>(chat_id, message_id, std::move(reaction_types),
-                                                                    op == "reactbotbig"));
-    } else if (op == "gcapmrs") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatAvailablePaidMessageReactionSenders>(chat_id));
-    } else if (op == "appmr" || op == "appmra" || op == "appmrd") {
-      ChatId chat_id;
-      MessageId message_id;
-      int64 star_count;
-      ChatId reaction_chat_id;
-      get_args(args, chat_id, message_id, star_count, reaction_chat_id);
-      td_api::object_ptr<td_api::PaidReactionType> type;
-      if (op == "appmr") {
-        if (reaction_chat_id != 0) {
-          type = td_api::make_object<td_api::paidReactionTypeChat>(reaction_chat_id);
-        } else {
-          type = td_api::make_object<td_api::paidReactionTypeRegular>();
-        }
-      } else if (op == "appmra") {
-        type = td_api::make_object<td_api::paidReactionTypeAnonymous>();
-      }
-      send_request(
-          td_api::make_object<td_api::addPendingPaidMessageReaction>(chat_id, message_id, star_count, std::move(type)));
-    } else if (op == "cppmr") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::commitPendingPaidMessageReactions>(chat_id, message_id));
-    } else if (op == "rppmr") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::removePendingPaidMessageReactions>(chat_id, message_id));
-    } else if (op == "spmrt" || op == "spmrta") {
-      ChatId chat_id;
-      MessageId message_id;
-      ChatId reaction_chat_id;
-      get_args(args, chat_id, message_id, reaction_chat_id);
-      td_api::object_ptr<td_api::PaidReactionType> type;
-      if (op == "spmrt") {
-        if (reaction_chat_id != 0) {
-          type = td_api::make_object<td_api::paidReactionTypeChat>(reaction_chat_id);
-        } else {
-          type = td_api::make_object<td_api::paidReactionTypeRegular>();
-        }
-      } else if (op == "spmrta") {
-        type = td_api::make_object<td_api::paidReactionTypeAnonymous>();
-      }
-      send_request(td_api::make_object<td_api::setPaidMessageReactionType>(chat_id, message_id, std::move(type)));
-    } else if (op == "gmars") {
-      ChatId chat_id;
-      MessageId message_id;
-      string reaction;
-      string offset;
-      string limit;
-      get_args(args, chat_id, message_id, reaction, offset, limit);
-      send_request(td_api::make_object<td_api::getMessageAddedReactions>(
-          chat_id, message_id, as_reaction_type(reaction), offset, as_limit(limit)));
-    } else if (op == "gsmts") {
-      send_request(td_api::make_object<td_api::getSavedMessagesTags>(get_saved_messages_topic_id()));
-    } else if (op == "ssmtl") {
-      string reaction;
-      string label;
-      get_args(args, reaction, label);
-      send_request(td_api::make_object<td_api::setSavedMessagesTagLabel>(as_reaction_type(reaction), label));
-    } else if (op == "gme") {
-      send_request(td_api::make_object<td_api::getMessageEffect>(to_integer<int64>(args)));
-    } else if (op == "gmpf") {
-      ChatId chat_id;
-      MessageId message_id;
-      string offset;
-      string limit;
-      get_args(args, chat_id, message_id, offset, limit);
-      send_request(td_api::make_object<td_api::getMessagePublicForwards>(chat_id, message_id, offset, as_limit(limit)));
-    } else if (op == "gspf") {
-      ChatId chat_id;
-      StoryId story_id;
-      string offset;
-      string limit;
-      get_args(args, chat_id, story_id, offset, limit);
-      send_request(td_api::make_object<td_api::getStoryPublicForwards>(chat_id, story_id, offset, as_limit(limit)));
-    } else if (op == "ghf") {
-      get_history_chat_id_ = as_chat_id(args);
-      send_request(td_api::make_object<td_api::getChatHistory>(get_history_chat_id_, std::numeric_limits<int64>::max(),
-                                                               0, 100, false));
-    } else if (op == "replies") {
-      ChatId chat_id;
-      string filter;
-      get_args(args, chat_id, filter);
-      send_request(td_api::make_object<td_api::searchChatMessages>(chat_id, "", nullptr, 0, 0, 100,
-                                                                   as_search_messages_filter(filter),
-                                                                   message_thread_id_, get_saved_messages_topic_id()));
-    } else if (op == "spvf") {
-      search_chat_id_ = as_chat_id(args);
-      send_request(td_api::make_object<td_api::searchChatMessages>(
-          search_chat_id_, "", nullptr, 0, 0, 100, as_search_messages_filter("pvi"), 0, get_saved_messages_topic_id()));
-    } else if (op == "Search" || op == "SearchA" || op == "SearchM" || op == "SearchP" || op == "SearchG" ||
-               op == "SearchC") {
-      string query;
-      string limit;
-      string filter;
-      string offset;
-      get_args(args, query, limit, filter, offset);
-      td_api::object_ptr<td_api::ChatList> chat_list;
-      if (op == "SearchA") {
-        chat_list = td_api::make_object<td_api::chatListArchive>();
-      }
-      if (op == "SearchM") {
-        chat_list = td_api::make_object<td_api::chatListMain>();
-      }
-      td_api::object_ptr<td_api::SearchMessagesChatTypeFilter> chat_type_filter;
-      if (op == "SearchP") {
-        chat_type_filter = td_api::make_object<td_api::searchMessagesChatTypeFilterPrivate>();
-      }
-      if (op == "SearchG") {
-        chat_type_filter = td_api::make_object<td_api::searchMessagesChatTypeFilterGroup>();
-      }
-      if (op == "SearchC") {
-        chat_type_filter = td_api::make_object<td_api::searchMessagesChatTypeFilterChannel>();
-      }
-      send_request(td_api::make_object<td_api::searchMessages>(std::move(chat_list), query, offset, as_limit(limit),
-                                                               as_search_messages_filter(filter),
-                                                               std::move(chat_type_filter), 1, 2147483647));
-    } else if (op == "SCM") {
-      ChatId chat_id;
-      SearchQuery query;
-      get_args(args, chat_id, query);
-      send_request(td_api::make_object<td_api::searchChatMessages>(chat_id, query.query, nullptr, 0, 0, query.limit,
-                                                                   nullptr, 0, get_saved_messages_topic_id()));
-    } else if (op == "SMME") {
-      ChatId chat_id;
-      string limit;
-      get_args(args, chat_id, limit);
-      send_request(td_api::make_object<td_api::searchChatMessages>(
-          chat_id, "", td_api::make_object<td_api::messageSenderUser>(my_id_), 0, 0, as_limit(limit), nullptr, 0,
-          get_saved_messages_topic_id()));
-    } else if (op == "SMU" || op == "SMC") {
-      ChatId chat_id;
-      string sender_id;
-      MessageId from_message_id;
-      string limit;
-      get_args(args, chat_id, sender_id, from_message_id, limit);
-      send_request(td_api::make_object<td_api::searchChatMessages>(chat_id, "", as_message_sender(sender_id),
-                                                                   from_message_id, 0, as_limit(limit), nullptr, 0,
-                                                                   get_saved_messages_topic_id()));
-    } else if (op == "SM") {
-      ChatId chat_id;
-      string filter;
-      string limit;
-      MessageId offset_message_id;
-      int32 offset;
-      get_args(args, chat_id, filter, limit, offset_message_id, offset);
-      send_request(td_api::make_object<td_api::searchChatMessages>(chat_id, "", nullptr, offset_message_id, offset,
-                                                                   as_limit(limit), as_search_messages_filter(filter),
-                                                                   0, get_saved_messages_topic_id()));
-    } else if (op == "SC") {
-      string limit;
-      string offset;
-      bool only_missed;
-      get_args(args, limit, offset, only_missed);
-      send_request(td_api::make_object<td_api::searchCallMessages>(offset, as_limit(limit), only_missed));
-    } else if (op == "sodm") {
-      SearchQuery query;
-      get_args(args, query);
-      send_request(td_api::make_object<td_api::searchOutgoingDocumentMessages>(query.query, query.limit));
-    } else if (op == "spmbt") {
-      string tag;
-      string limit;
-      string offset;
-      get_args(args, tag, limit, offset);
-      send_request(td_api::make_object<td_api::searchPublicMessagesByTag>(tag, offset, as_limit(limit)));
-    } else if (op == "spsbt") {
-      ChatId chat_id;
-      string tag;
-      string limit;
-      string offset;
-      get_args(args, chat_id, tag, limit, offset);
-      send_request(td_api::make_object<td_api::searchPublicStoriesByTag>(chat_id, tag, offset, as_limit(limit)));
-    } else if (op == "spsbl") {
-      string country_code;
-      string state;
-      string city;
-      string street;
-      string venue_id;
-      string limit;
-      string offset;
-      get_args(args, country_code, state, city, street, limit, offset);
-      send_request(td_api::make_object<td_api::searchPublicStoriesByLocation>(
-          td_api::make_object<td_api::locationAddress>(country_code, state, city, street), offset, as_limit(limit)));
-    } else if (op == "spsbv") {
-      string venue_provider;
-      string venue_id;
-      string limit;
-      string offset;
-      get_args(args, venue_provider, venue_id, limit, offset);
-      send_request(
-          td_api::make_object<td_api::searchPublicStoriesByVenue>(venue_provider, venue_id, offset, as_limit(limit)));
-    } else if (op == "gsfh") {
-      string tag_prefix;
-      string limit;
-      get_args(args, tag_prefix, limit);
-      send_request(td_api::make_object<td_api::getSearchedForTags>(tag_prefix, as_limit(limit)));
-    } else if (op == "rsfh") {
-      string tag;
-      get_args(args, tag);
-      send_request(td_api::make_object<td_api::removeSearchedForTag>(tag));
-    } else if (op == "csfh" || op == "csfc") {
-      send_request(td_api::make_object<td_api::clearSearchedForTags>(op == "csfc"));
-    } else if (op == "dacm") {
-      bool revoke = as_bool(args);
-      send_request(td_api::make_object<td_api::deleteAllCallMessages>(revoke));
-    } else if (op == "scrlm") {
-      ChatId chat_id;
-      string limit;
-      get_args(args, chat_id, limit);
-      send_request(td_api::make_object<td_api::searchChatRecentLocationMessages>(chat_id, as_limit(limit)));
-    } else if (op == "gcmca") {
-      ChatId chat_id;
-      string filter;
-      MessageId from_message_id;
-      get_args(args, chat_id, filter, from_message_id);
-      send_request(td_api::make_object<td_api::getChatMessageCalendar>(chat_id, as_search_messages_filter(filter),
-                                                                       from_message_id, get_saved_messages_topic_id()));
-    } else if (op == "SearchAudio" || op == "SearchDocument" || op == "SearchPhoto" || op == "SearchChatPhoto") {
-      ChatId chat_id;
-      MessageId offset_message_id;
-      SearchQuery query;
-      get_args(args, chat_id, offset_message_id, query);
-      send_request(td_api::make_object<td_api::searchChatMessages>(chat_id, query.query, nullptr, offset_message_id, 0,
-                                                                   query.limit, as_search_messages_filter(op), 0,
-                                                                   get_saved_messages_topic_id()));
-    } else if (op == "ssms") {
-      string tag;
-      MessageId from_message_id;
-      int32 offset;
-      SearchQuery query;
-      get_args(args, tag, from_message_id, offset, query);
-      send_request(td_api::make_object<td_api::searchSavedMessages>(
-          get_saved_messages_topic_id(), as_reaction_type(tag), query.query, from_message_id, offset, query.limit));
-    } else if (op == "gcmbd") {
-      ChatId chat_id;
-      int32 date;
-      get_args(args, chat_id, date);
-      send_request(td_api::make_object<td_api::getChatMessageByDate>(chat_id, date));
-    } else if (op == "gcsmp") {
-      ChatId chat_id;
-      string filter;
-      MessageId from_message_id;
-      string limit;
-      get_args(args, chat_id, filter, from_message_id, limit);
-      send_request(td_api::make_object<td_api::getChatSparseMessagePositions>(
-          chat_id, as_search_messages_filter(filter), from_message_id, as_limit(limit), get_saved_messages_topic_id()));
-    } else if (op == "gcmc") {
-      ChatId chat_id;
-      string filter;
-      bool return_local;
-      get_args(args, chat_id, filter, return_local);
-      send_request(td_api::make_object<td_api::getChatMessageCount>(chat_id, as_search_messages_filter(filter),
-                                                                    get_saved_messages_topic_id(), return_local));
-    } else if (op == "gcmp") {
-      ChatId chat_id;
-      MessageId message_id;
-      string filter;
-      get_args(args, chat_id, message_id, filter);
-      send_request(td_api::make_object<td_api::getChatMessagePosition>(
-          chat_id, message_id, as_search_messages_filter(filter), message_thread_id_, get_saved_messages_topic_id()));
-    } else if (op == "gup" || op == "gupp") {
-      UserId user_id;
-      int32 offset;
-      string limit;
-      get_args(args, user_id, offset, limit);
-      send_request(td_api::make_object<td_api::getUserProfilePhotos>(user_id, offset, as_limit(limit)));
-    } else if (op == "dcrm") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::deleteChatReplyMarkup>(chat_id, message_id));
-    } else if (op == "glti") {
-      send_request(td_api::make_object<td_api::getLocalizationTargetInfo>(as_bool(args)));
-    } else if (op == "glpi") {
-      send_request(td_api::make_object<td_api::getLanguagePackInfo>(args));
-    } else if (op == "glps") {
-      string language_code;
-      string keys;
-      get_args(args, language_code, keys);
-      send_request(td_api::make_object<td_api::getLanguagePackStrings>(language_code, autosplit_str(keys)));
-    } else if (op == "glpss") {
-      string language_database_path;
-      string language_pack;
-      string language_code;
-      string key;
-      get_args(args, language_database_path, language_pack, language_code, key);
-      send_request(td_api::make_object<td_api::getLanguagePackString>(language_database_path, language_pack,
-                                                                      language_code, key));
-    } else if (op == "synclp") {
-      const string &language_code = args;
-      send_request(td_api::make_object<td_api::synchronizeLanguagePack>(language_code));
-    } else if (op == "acslp") {
-      const string &language_code = args;
-      send_request(td_api::make_object<td_api::addCustomServerLanguagePack>(language_code));
-    } else if (op == "sclp") {
-      string language_code;
-      string name;
-      string native_name;
-      string key;
-      get_args(args, language_code, name, native_name, key);
-      vector<td_api::object_ptr<td_api::languagePackString>> strings;
-      strings.push_back(td_api::make_object<td_api::languagePackString>(
-          key, td_api::make_object<td_api::languagePackStringValueOrdinary>("Ordinary value")));
-      strings.push_back(td_api::make_object<td_api::languagePackString>(
-          "Plu", td_api::make_object<td_api::languagePackStringValuePluralized>("Zero", string("One\0One", 7), "Two",
-                                                                                "Few", "Many", "Other")));
-      strings.push_back(td_api::make_object<td_api::languagePackString>(
-          "DELETED", td_api::make_object<td_api::languagePackStringValueDeleted>()));
-      send_request(td_api::make_object<td_api::setCustomLanguagePack>(
-          as_language_pack_info(language_code, name, native_name), std::move(strings)));
-    } else if (op == "eclpi") {
-      string language_code;
-      string name;
-      string native_name;
-      get_args(args, language_code, name, native_name);
-      send_request(td_api::make_object<td_api::editCustomLanguagePackInfo>(
-          as_language_pack_info(language_code, name, native_name)));
-    } else if (op == "sclpsv" || op == "sclpsp" || op == "sclpsd") {
-      string language_code;
-      string key;
-      string value;
-      get_args(args, language_code, key, value);
-      td_api::object_ptr<td_api::languagePackString> str =
-          td_api::make_object<td_api::languagePackString>(key, nullptr);
-      if (op == "sclsv") {
-        str->value_ = td_api::make_object<td_api::languagePackStringValueOrdinary>(value);
-      } else if (op == "sclsp") {
-        str->value_ = td_api::make_object<td_api::languagePackStringValuePluralized>(value, string("One\0One", 7),
-                                                                                     "Two", "Few", "Many", "Other");
-      } else {
-        str->value_ = td_api::make_object<td_api::languagePackStringValueDeleted>();
-      }
-      send_request(td_api::make_object<td_api::setCustomLanguagePackString>(language_code, std::move(str)));
-    } else if (op == "dlp") {
-      send_request(td_api::make_object<td_api::deleteLanguagePack>(args));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "on" || op == "off") {
-      send_request(td_api::make_object<td_api::setOption>("online",
-                                                          td_api::make_object<td_api::optionValueBoolean>(op == "on")));
-    } else if (op == "go") {
-      send_request(td_api::make_object<td_api::getOption>(args));
-    } else if (op == "gos") {
-      execute(td_api::make_object<td_api::getOption>(args));
-    } else if (op == "sob") {
-      string name;
-      bool value;
-      get_args(args, name, value);
-      send_request(
-          td_api::make_object<td_api::setOption>(name, td_api::make_object<td_api::optionValueBoolean>(value)));
-    } else if (op == "soe") {
-      send_request(td_api::make_object<td_api::setOption>(args, td_api::make_object<td_api::optionValueEmpty>()));
-    } else if (op == "soi") {
-      string name;
-      int64 value;
-      get_args(args, name, value);
-      send_request(
-          td_api::make_object<td_api::setOption>(name, td_api::make_object<td_api::optionValueInteger>(value)));
-    } else if (op == "sos") {
-      string name;
-      string value;
-      get_args(args, name, value);
-      send_request(td_api::make_object<td_api::setOption>(name, td_api::make_object<td_api::optionValueString>(value)));
-    } else if (op == "me") {
-      send_request(td_api::make_object<td_api::getMe>());
-    } else if (op == "sdmadt") {
-      int32 auto_delete_time;
-      get_args(args, auto_delete_time);
-      send_request(td_api::make_object<td_api::setDefaultMessageAutoDeleteTime>(
-          td_api::make_object<td_api::messageAutoDeleteTime>(auto_delete_time)));
-    } else if (op == "gdmadt") {
-      send_request(td_api::make_object<td_api::getDefaultMessageAutoDeleteTime>());
-    } else if (op == "sattl") {
-      int32 days;
-      get_args(args, days);
-      send_request(td_api::make_object<td_api::setAccountTtl>(td_api::make_object<td_api::accountTtl>(days)));
-    } else if (op == "gattl") {
-      send_request(td_api::make_object<td_api::getAccountTtl>());
-    } else if (op == "devices" || op == "sessions") {
-      send_request(td_api::make_object<td_api::getActiveSessions>());
-    } else if (op == "ts") {
-      int64 session_id;
-      get_args(args, session_id);
-      send_request(td_api::make_object<td_api::terminateSession>(session_id));
-    } else if (op == "taos") {
-      send_request(td_api::make_object<td_api::terminateAllOtherSessions>());
-    } else if (op == "cse") {
-      int64 session_id;
-      get_args(args, session_id);
-      send_request(td_api::make_object<td_api::confirmSession>(session_id));
-    } else if (op == "tscac") {
-      int64 session_id;
-      bool can_accept_calls;
-      get_args(args, session_id, can_accept_calls);
-      send_request(td_api::make_object<td_api::toggleSessionCanAcceptCalls>(session_id, can_accept_calls));
-    } else if (op == "tscasc") {
-      int64 session_id;
-      bool can_accept_secret_chats;
-      get_args(args, session_id, can_accept_secret_chats);
-      send_request(td_api::make_object<td_api::toggleSessionCanAcceptSecretChats>(session_id, can_accept_secret_chats));
-    } else if (op == "sist") {
-      int32 inactive_session_ttl_days;
-      get_args(args, inactive_session_ttl_days);
-      send_request(td_api::make_object<td_api::setInactiveSessionTtl>(inactive_session_ttl_days));
-    } else if (op == "gcw") {
-      send_request(td_api::make_object<td_api::getConnectedWebsites>());
-    } else if (op == "dw") {
-      int64 website_id;
-      get_args(args, website_id);
-      send_request(td_api::make_object<td_api::disconnectWebsite>(website_id));
-    } else if (op == "daw") {
-      send_request(td_api::make_object<td_api::disconnectAllWebsites>());
-    } else if (op == "gib") {
-      send_request(td_api::make_object<td_api::getInstalledBackgrounds>(as_bool(args)));
-    } else if (op == "gbgu") {
-      send_get_background_url(as_wallpaper_background(false, false));
-      send_get_background_url(as_wallpaper_background(false, true));
-      send_get_background_url(as_wallpaper_background(true, false));
-      send_get_background_url(as_wallpaper_background(true, true));
-      send_get_background_url(as_solid_pattern_background(-1, 0, false));
-      send_get_background_url(as_solid_pattern_background(0x1000000, 0, true));
-      send_get_background_url(as_solid_pattern_background(0, -1, false));
-      send_get_background_url(as_solid_pattern_background(0, 101, false));
-      send_get_background_url(as_solid_pattern_background(0, 0, false));
-      send_get_background_url(as_solid_pattern_background(0xFFFFFF, 100, true));
-      send_get_background_url(as_solid_pattern_background(0xABCDEF, 49, true));
-      send_get_background_url(as_gradient_pattern_background(0, 0, 0, false, false));
-      send_get_background_url(as_gradient_pattern_background(0, 0, 0, true, false));
-      send_get_background_url(as_gradient_pattern_background(0xFFFFFF, 0, 100, false, true));
-      send_get_background_url(as_gradient_pattern_background(0xFFFFFF, 0, 100, true, true));
-      send_get_background_url(as_gradient_pattern_background(0xABCDEF, 0xFEDCBA, 49, false, true));
-      send_get_background_url(as_gradient_pattern_background(0, 0x1000000, 49, false, true));
-      send_get_background_url(as_freeform_gradient_pattern_background({0xABCDEF, 0xFEDCBA}, 49, false, true));
-      send_get_background_url(as_freeform_gradient_pattern_background({0xABCDEF, 0x111111, 0x222222}, 49, true, true));
-      send_get_background_url(
-          as_freeform_gradient_pattern_background({0xABCDEF, 0xFEDCBA, 0x111111, 0x222222}, 49, false, true));
-      send_get_background_url(as_solid_background(-1));
-      send_get_background_url(as_solid_background(0xABCDEF));
-      send_get_background_url(as_solid_background(0x1000000));
-      send_get_background_url(as_gradient_background(0xABCDEF, 0xFEDCBA));
-      send_get_background_url(as_gradient_background(0, 0));
-      send_get_background_url(as_gradient_background(-1, -1));
-      send_get_background_url(as_freeform_gradient_background({0xFEDCBA, 0x222222}));
-      send_get_background_url(as_freeform_gradient_background({0xFEDCBA, 0x111111, 0x222222}));
-      send_get_background_url(as_freeform_gradient_background({0xABCDEF, 0xFEDCBA, 0x111111, 0x222222}));
-      send_get_background_url(as_chat_theme_background(args));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "sbg") {
-      send_request(td_api::make_object<td_api::searchBackground>(args));
-    } else if (op == "sdb" || op == "sdbd") {
-      InputBackground input_background;
-      BackgroundType background_type;
-      get_args(args, input_background, background_type);
-      send_request(td_api::make_object<td_api::setDefaultBackground>(input_background, background_type, op == "sdbd"));
-    } else if (op == "ddb" || op == "ddbd") {
-      send_request(td_api::make_object<td_api::deleteDefaultBackground>(op == "ddbd"));
-    } else if (op == "rib") {
-      int64 background_id;
-      get_args(args, background_id);
-      send_request(td_api::make_object<td_api::removeInstalledBackground>(background_id));
-    } else if (op == "ribs") {
-      send_request(td_api::make_object<td_api::resetInstalledBackgrounds>());
-    } else if (op == "scbg" || op == "scbgs") {
-      ChatId chat_id;
-      InputBackground input_background;
-      BackgroundType background_type;
-      int32 dark_theme_dimming;
-      get_args(args, chat_id, input_background, background_type, dark_theme_dimming);
-      send_request(td_api::make_object<td_api::setChatBackground>(chat_id, input_background, background_type,
-                                                                  dark_theme_dimming, op == "scbgs"));
-    } else if (op == "dcb" || op == "dcbr") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::deleteChatBackground>(chat_id, op == "dcbr"));
-    } else if (op == "gcos") {
-      send_request(td_api::make_object<td_api::getCountries>());
-    } else if (op == "gcoc") {
-      send_request(td_api::make_object<td_api::getCountryCode>());
-    } else if (op == "gpni") {
-      send_request(td_api::make_object<td_api::getPhoneNumberInfo>(args));
-    } else if (op == "gpnis") {
-      execute(td_api::make_object<td_api::getPhoneNumberInfoSync>(rand_bool() ? "en" : "", args));
-    } else if (op == "gciu") {
-      send_request(td_api::make_object<td_api::getCollectibleItemInfo>(
-          td_api::make_object<td_api::collectibleItemTypeUsername>(args)));
-    } else if (op == "gcipn") {
-      send_request(td_api::make_object<td_api::getCollectibleItemInfo>(
-          td_api::make_object<td_api::collectibleItemTypePhoneNumber>(args)));
-    } else if (op == "gadl") {
-      send_request(td_api::make_object<td_api::getApplicationDownloadLink>());
-    } else if (op == "gprl") {
-      auto limit_type = td_api::make_object<td_api::premiumLimitTypeChatFolderCount>();
-      send_request(td_api::make_object<td_api::getPremiumLimit>(std::move(limit_type)));
-    } else if (op == "gprf") {
-      auto source = td_api::make_object<td_api::premiumSourceLimitExceeded>(
-          td_api::make_object<td_api::premiumLimitTypeChatFolderCount>());
-      send_request(td_api::make_object<td_api::getPremiumFeatures>(std::move(source)));
-    } else if (op == "gprse") {
-      send_request(td_api::make_object<td_api::getPremiumStickerExamples>());
-    } else if (op == "gpis") {
-      int32 month_count;
-      get_args(args, month_count);
-      send_request(td_api::make_object<td_api::getPremiumInfoSticker>(month_count));
-    } else if (op == "vprf") {
-      auto feature = td_api::make_object<td_api::premiumFeatureProfileBadge>();
-      send_request(td_api::make_object<td_api::viewPremiumFeature>(std::move(feature)));
-    } else if (op == "cprsb") {
-      send_request(td_api::make_object<td_api::clickPremiumSubscriptionButton>());
-    } else if (op == "gprs") {
-      send_request(td_api::make_object<td_api::getPremiumState>());
-    } else if (op == "gpgpo") {
-      send_request(td_api::make_object<td_api::getPremiumGiftPaymentOptions>());
-    } else if (op == "gpgapo") {
-      ChatId boosted_chat_id;
-      get_args(args, boosted_chat_id);
-      send_request(td_api::make_object<td_api::getPremiumGiveawayPaymentOptions>(boosted_chat_id));
-    } else if (op == "cpgc") {
-      send_request(td_api::make_object<td_api::checkPremiumGiftCode>(args));
-    } else if (op == "apgc") {
-      send_request(td_api::make_object<td_api::applyPremiumGiftCode>(args));
-    } else if (op == "gpws") {
-      UserId user_id;
-      int64 star_count;
-      int32 month_count;
-      string text;
-      get_args(args, user_id, star_count, month_count, text);
-      send_request(
-          td_api::make_object<td_api::giftPremiumWithStars>(user_id, star_count, month_count, as_formatted_text(text)));
-    } else if (op == "lpg") {
-      int64 giveaway_id;
-      int32 user_count;
-      int64 star_count;
-      GiveawayParameters parameters;
-      get_args(args, giveaway_id, user_count, star_count, parameters);
-      send_request(td_api::make_object<td_api::launchPrepaidGiveaway>(giveaway_id, parameters, user_count, star_count));
-    } else if (op == "ggi") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getGiveawayInfo>(chat_id, message_id));
-    } else if (op == "gspo") {
-      send_request(td_api::make_object<td_api::getStarPaymentOptions>());
-    } else if (op == "gsgpo") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::getStarGiftPaymentOptions>(user_id));
-    } else if (op == "gsgapo") {
-      send_request(td_api::make_object<td_api::getStarGiveawayPaymentOptions>());
-    } else if (op == "gsta" || op == "gsti" || op == "gsto") {
-      string owner_id;
-      string limit;
-      string offset;
-      string subscription_id;
-      get_args(args, owner_id, limit, offset, subscription_id);
-      td_api::object_ptr<td_api::StarTransactionDirection> direction;
-      if (op == "gsti") {
-        direction = td_api::make_object<td_api::starTransactionDirectionIncoming>();
-      } else if (op == "gsto") {
-        direction = td_api::make_object<td_api::starTransactionDirectionOutgoing>();
-      }
-      send_request(td_api::make_object<td_api::getStarTransactions>(as_message_sender(owner_id), subscription_id,
-                                                                    std::move(direction), offset, as_limit(limit)));
-    } else if (op == "gssu") {
-      bool only_expiring;
-      string offset;
-      get_args(args, only_expiring, offset);
-      send_request(td_api::make_object<td_api::getStarSubscriptions>(only_expiring, offset));
-    } else if (op == "ess") {
-      string subscription_id;
-      bool is_canceled;
-      get_args(args, subscription_id, is_canceled);
-      send_request(td_api::make_object<td_api::editStarSubscription>(subscription_id, is_canceled));
-    } else if (op == "rss") {
-      string subscription_id;
-      get_args(args, subscription_id);
-      send_request(td_api::make_object<td_api::reuseStarSubscription>(subscription_id));
-    } else if (op == "scap" || op == "scapd") {
-      ChatId chat_id;
-      int32 commission;
-      int32 month_count;
-      get_args(args, chat_id, commission, month_count);
-      send_request(td_api::make_object<td_api::setChatAffiliateProgram>(
-          chat_id,
-          op == "scapd" ? nullptr : td_api::make_object<td_api::affiliateProgramParameters>(commission, month_count)));
-    } else if (op == "scapr") {
-      string username;
-      string referrer;
-      get_args(args, username, referrer);
-      send_request(td_api::make_object<td_api::searchChatAffiliateProgram>(username, referrer));
-    } else if (op == "sapc" || op == "sapd" || op == "sapr") {
-      AffiliateType affiliate;
-      string limit;
-      string offset;
-      get_args(args, affiliate, limit, offset);
-      td_api::object_ptr<td_api::AffiliateProgramSortOrder> sort_order;
-      if (op == "sapd") {
-        sort_order = td_api::make_object<td_api::affiliateProgramSortOrderCreationDate>();
-      } else if (op == "sapr") {
-        sort_order = td_api::make_object<td_api::affiliateProgramSortOrderRevenue>();
-      }
-      send_request(td_api::make_object<td_api::searchAffiliatePrograms>(affiliate, std::move(sort_order), offset,
-                                                                        as_limit(limit)));
-    } else if (op == "capr") {
-      AffiliateType affiliate;
-      UserId bot_user_id;
-      get_args(args, affiliate, bot_user_id);
-      send_request(td_api::make_object<td_api::connectAffiliateProgram>(affiliate, bot_user_id));
-    } else if (op == "dapr") {
-      AffiliateType affiliate;
-      string url;
-      get_args(args, affiliate, url);
-      send_request(td_api::make_object<td_api::disconnectAffiliateProgram>(affiliate, url));
-    } else if (op == "gcapr") {
-      AffiliateType affiliate;
-      UserId bot_user_id;
-      get_args(args, affiliate, bot_user_id);
-      send_request(td_api::make_object<td_api::getConnectedAffiliateProgram>(affiliate, bot_user_id));
-    } else if (op == "gcaprs") {
-      AffiliateType affiliate;
-      string limit;
-      string offset;
-      get_args(args, affiliate, limit, offset);
-      send_request(td_api::make_object<td_api::getConnectedAffiliatePrograms>(affiliate, offset, as_limit(limit)));
-    } else if (op == "cpfs" || op == "cpfsb") {
-      UserId user_id;
-      string currency;
-      int64 amount;
-      ChatId boosted_chat_id;
-      get_args(args, user_id, currency, amount, boosted_chat_id);
-      if (currency.empty()) {
-        send_request(td_api::make_object<td_api::canPurchaseFromStore>(
-            td_api::make_object<td_api::storePaymentPurposePremiumSubscription>(false, false)));
-      } else {
-        send_request(td_api::make_object<td_api::canPurchaseFromStore>(
-            td_api::make_object<td_api::storePaymentPurposePremiumGiftCodes>(boosted_chat_id, currency, amount,
-                                                                             vector<int64>{user_id}, nullptr)));
-      }
-    } else if (op == "cpfsg") {
-      GiveawayParameters parameters;
-      string currency;
-      int64 amount;
-      get_args(args, parameters, currency, amount);
-      send_request(td_api::make_object<td_api::canPurchaseFromStore>(
-          td_api::make_object<td_api::storePaymentPurposePremiumGiveaway>(parameters, currency, amount)));
-    } else if (op == "cpfssg") {
-      GiveawayParameters parameters;
-      string currency;
-      int64 amount;
-      int32 user_count;
-      int64 star_count;
-      get_args(args, parameters, currency, amount, user_count, star_count);
-      send_request(td_api::make_object<td_api::canPurchaseFromStore>(
-          td_api::make_object<td_api::storePaymentPurposeStarGiveaway>(parameters, currency, amount, user_count,
-                                                                       star_count)));
-    } else if (op == "cpfss") {
-      string currency;
-      int64 amount;
-      int64 star_count;
-      get_args(args, currency, amount, star_count);
-      send_request(td_api::make_object<td_api::canPurchaseFromStore>(
-          td_api::make_object<td_api::storePaymentPurposeStars>(currency, amount, star_count)));
-    } else if (op == "cpfsgs") {
-      UserId user_id;
-      string currency;
-      int64 amount;
-      int64 star_count;
-      get_args(args, user_id, currency, amount, star_count);
-      send_request(td_api::make_object<td_api::canPurchaseFromStore>(
-          td_api::make_object<td_api::storePaymentPurposeGiftedStars>(user_id, currency, amount, star_count)));
-    } else if (op == "gbf") {
-      send_request(td_api::make_object<td_api::getBusinessFeatures>(nullptr));
-    } else if (op == "atos") {
-      send_request(td_api::make_object<td_api::acceptTermsOfService>(args));
-    } else if (op == "gdli") {
-      send_request(td_api::make_object<td_api::getDeepLinkInfo>(args));
-    } else if (op == "tme") {
-      send_request(td_api::make_object<td_api::getRecentlyVisitedTMeUrls>(args));
-    } else if (op == "gbms") {
-      string block_list;
-      int32 offset;
-      string limit;
-      get_args(args, block_list, offset, limit);
-      send_request(
-          td_api::make_object<td_api::getBlockedMessageSenders>(as_block_list(block_list), offset, as_limit(limit)));
-    } else if (op == "gu") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::getUser>(user_id));
-    } else if (op == "gsu") {
-      send_request(td_api::make_object<td_api::getSupportUser>());
-    } else if (op == "gso" || op == "gsoa" || op == "gsoc") {
-      int32 sticker_file_id;
-      get_args(args, sticker_file_id);
-      send_request(td_api::make_object<td_api::getStickerOutline>(sticker_file_id, op == "gsoa", op == "gsoc"));
-    } else if (op == "gs" || op == "gsmm" || op == "gsee" || op == "gseeme") {
-      SearchQuery query;
-      get_args(args, query);
-      send_request(td_api::make_object<td_api::getStickers>(as_sticker_type(op), query.query, query.limit,
-                                                            op == "gseeme" ? my_id_ : 0));
-    } else if (op == "gaser" || op == "gasem" || op == "gase" || op == "gaseme") {
-      string query;
-      bool return_only_main_emoji;
-      get_args(args, query, return_only_main_emoji);
-      send_request(td_api::make_object<td_api::getAllStickerEmojis>(
-          as_sticker_type(op), query, op == "gaseme" ? my_id_ : 0, return_only_main_emoji));
-    } else if (op == "sst" || op == "sstm" || op == "sste") {
-      string limit;
-      string emoji;
-      string query;
-      string input_language_codes;
-      int32 offset;
-      get_args(args, limit, emoji, query, input_language_codes, offset);
-      send_request(td_api::make_object<td_api::searchStickers>(
-          as_sticker_type(op), emoji, query, autosplit_str(input_language_codes), offset, as_limit(limit)));
-    } else if (op == "ggs") {
-      send_request(td_api::make_object<td_api::getGreetingStickers>());
-    } else if (op == "gprst") {
-      string limit;
-      get_args(args, limit);
-      send_request(td_api::make_object<td_api::getPremiumStickers>(as_limit(limit)));
-    } else if (op == "gss") {
-      int64 sticker_set_id;
-      get_args(args, sticker_set_id);
-      send_request(td_api::make_object<td_api::getStickerSet>(sticker_set_id));
-    } else if (op == "gssn") {
-      int64 sticker_set_id;
-      get_args(args, sticker_set_id);
-      send_request(td_api::make_object<td_api::getStickerSetName>(sticker_set_id));
-    } else if (op == "giss" || op == "gissm" || op == "gisse") {
-      send_request(td_api::make_object<td_api::getInstalledStickerSets>(as_sticker_type(op)));
-    } else if (op == "gass" || op == "gassm" || op == "gasse") {
-      int64 offset_sticker_set_id;
-      string limit;
-      get_args(args, offset_sticker_set_id, limit);
-      send_request(td_api::make_object<td_api::getArchivedStickerSets>(as_sticker_type(op), offset_sticker_set_id,
-                                                                       as_limit(limit)));
-    } else if (op == "gtss" || op == "gtssm" || op == "gtsse") {
-      int32 offset;
-      string limit;
-      get_args(args, offset, limit);
-      send_request(
-          td_api::make_object<td_api::getTrendingStickerSets>(as_sticker_type(op), offset, as_limit(limit, 1000)));
-    } else if (op == "gatss") {
-      FileId file_id;
-      get_args(args, file_id);
-      send_request(td_api::make_object<td_api::getAttachedStickerSets>(file_id));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "storage") {
-      int32 chat_limit;
-      get_args(args, chat_limit);
-      send_request(td_api::make_object<td_api::getStorageStatistics>(chat_limit));
-    } else if (op == "storage_fast") {
-      send_request(td_api::make_object<td_api::getStorageStatisticsFast>());
-    } else if (op == "database") {
-      send_request(td_api::make_object<td_api::getDatabaseStatistics>());
-    } else if (op == "optimize_storage" || op == "optimize_storage_all") {
-      string chat_ids;
-      string exclude_chat_ids;
-      int32 chat_ids_limit;
-      get_args(args, chat_ids, exclude_chat_ids, chat_ids_limit);
-      send_request(td_api::make_object<td_api::optimizeStorage>(
-          10000000, -1, -1, 0, std::vector<td_api::object_ptr<td_api::FileType>>(), as_chat_ids(chat_ids),
-          as_chat_ids(exclude_chat_ids), op == "optimize_storage", chat_ids_limit));
-    } else if (op == "clean_storage_default") {
-      send_request(td_api::make_object<td_api::optimizeStorage>());
-    } else if (op == "clean_photos") {
-      std::vector<td_api::object_ptr<td_api::FileType>> types;
-      types.emplace_back(td_api::make_object<td_api::fileTypePhoto>());
-      send_request(td_api::make_object<td_api::optimizeStorage>(0, 0, 0, 0, std::move(types), as_chat_ids(""),
-                                                                as_chat_ids(""), true, 20));
-    } else if (op == "clean_storage") {
-      std::vector<td_api::object_ptr<td_api::FileType>> types;
-      types.emplace_back(td_api::make_object<td_api::fileTypeThumbnail>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeProfilePhoto>());
-      types.emplace_back(td_api::make_object<td_api::fileTypePhoto>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeVoiceNote>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeVideo>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeDocument>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeSecret>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeUnknown>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeSticker>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeAudio>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeAnimation>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeVideoNote>());
-      types.emplace_back(td_api::make_object<td_api::fileTypeSecure>());
-      send_request(td_api::make_object<td_api::optimizeStorage>(0, -1, -1, 0, std::move(types), as_chat_ids(args),
-                                                                as_chat_ids(""), true, 20));
-    } else if (op == "network") {
-      send_request(td_api::make_object<td_api::getNetworkStatistics>());
-    } else if (op == "current_network") {
-      send_request(td_api::make_object<td_api::getNetworkStatistics>(true));
-    } else if (op == "reset_network") {
-      send_request(td_api::make_object<td_api::resetNetworkStatistics>());
-    } else if (op == "snt") {
-      send_request(td_api::make_object<td_api::setNetworkType>(as_network_type(args)));
-    } else if (op == "gadsp") {
-      send_request(td_api::make_object<td_api::getAutoDownloadSettingsPresets>());
-    } else if (op == "sads") {
-      send_request(td_api::make_object<td_api::setAutoDownloadSettings>(
-          td_api::make_object<td_api::autoDownloadSettings>(), as_network_type(args)));
-    } else if (op == "gaus") {
-      send_request(td_api::make_object<td_api::getAutosaveSettings>());
-    } else if (op == "saus") {
-      string scope_str;
-      bool autosave_photos;
-      bool autosave_videos;
-      int64 max_video_file_size;
-      get_args(args, scope_str, autosave_photos, autosave_videos, max_video_file_size);
-      auto scope = [&]() -> td_api::object_ptr<td_api::AutosaveSettingsScope> {
-        if (scope_str == "users") {
-          return td_api::make_object<td_api::autosaveSettingsScopePrivateChats>();
-        }
-        if (scope_str == "groups") {
-          return td_api::make_object<td_api::autosaveSettingsScopeGroupChats>();
-        }
-        if (scope_str == "channels") {
-          return td_api::make_object<td_api::autosaveSettingsScopeChannelChats>();
-        }
-        auto chat_id = as_chat_id(scope_str);
-        if (chat_id != 0) {
-          return td_api::make_object<td_api::autosaveSettingsScopeChat>(chat_id);
-        }
-        return nullptr;
-      }();
-      send_request(td_api::make_object<td_api::setAutosaveSettings>(
-          std::move(scope),
-          td_api::make_object<td_api::scopeAutosaveSettings>(autosave_photos, autosave_videos, max_video_file_size)));
-    } else if (op == "cause") {
-      send_request(td_api::make_object<td_api::clearAutosaveSettingsExceptions>());
-    } else if (op == "ansc") {
-      int32 sent_bytes;
-      int32 received_bytes;
-      string duration;
-      string network_type;
-      get_args(args, sent_bytes, received_bytes, duration, network_type);
-      send_request(
-          td_api::make_object<td_api::addNetworkStatistics>(td_api::make_object<td_api::networkStatisticsEntryCall>(
-              as_network_type(network_type), sent_bytes, received_bytes, to_double(duration))));
-    } else if (op == "ans") {
-      int32 sent_bytes;
-      int32 received_bytes;
-      string network_type;
-      get_args(args, sent_bytes, received_bytes, network_type);
-      send_request(
-          td_api::make_object<td_api::addNetworkStatistics>(td_api::make_object<td_api::networkStatisticsEntryFile>(
-              td_api::make_object<td_api::fileTypeDocument>(), as_network_type(network_type), sent_bytes,
-              received_bytes)));
-    } else if (op == "gtc") {
-      send_request(td_api::make_object<td_api::getTopChats>(as_top_chat_category(args), 50));
-    } else if (op == "rtc") {
-      ChatId chat_id;
-      string category;
-      get_args(args, chat_id, category);
-      send_request(td_api::make_object<td_api::removeTopChat>(as_top_chat_category(category), chat_id));
-    } else if (op == "gsssn") {
-      const string &title = args;
-      send_request(td_api::make_object<td_api::getSuggestedStickerSetName>(title));
-    } else if (op == "cssn") {
-      const string &name = args;
-      send_request(td_api::make_object<td_api::checkStickerSetName>(name));
-    } else if (op == "usf" || op == "usfa" || op == "usfv") {
-      send_request(td_api::make_object<td_api::uploadStickerFile>(-1, as_sticker_format(op), as_input_file(args)));
-    } else if (op == "cnss" || op == "cnssa" || op == "cnssv" || op == "cnssm" || op == "cnsse") {
-      string title;
-      string name;
-      string stickers;
-      get_args(args, title, name, stickers);
-      auto input_stickers =
-          transform(autosplit(stickers), [op](Slice sticker) -> td_api::object_ptr<td_api::inputSticker> {
-            return td_api::make_object<td_api::inputSticker>(as_input_file(sticker), as_sticker_format(op), "😀",
-                                                             as_mask_position(op), vector<string>{"keyword"});
-          });
-      send_request(td_api::make_object<td_api::createNewStickerSet>(my_id_, title, name, as_sticker_type(op), false,
-                                                                    std::move(input_stickers), "tg_cli"));
-    } else if (op == "goss") {
-      int64 sticker_set_id;
-      string limit;
-      get_args(args, sticker_set_id, limit);
-      send_request(td_api::make_object<td_api::getOwnedStickerSets>(sticker_set_id, as_limit(limit)));
-    } else if (op == "sss" || op == "sssf") {
-      send_request(td_api::make_object<td_api::searchStickerSet>(args, op == "sssf"));
-    } else if (op == "siss") {
-      send_request(td_api::make_object<td_api::searchInstalledStickerSets>(nullptr, args, 2));
-    } else if (op == "ssss" || op == "ssssm" || op == "sssse") {
-      send_request(td_api::make_object<td_api::searchStickerSets>(as_sticker_type(op), args));
-    } else if (op == "css") {
-      int64 set_id;
-      bool is_installed;
-      bool is_archived;
-      get_args(args, set_id, is_installed, is_archived);
-      send_request(td_api::make_object<td_api::changeStickerSet>(set_id, is_installed, is_archived));
-    } else if (op == "vtss") {
-      send_request(td_api::make_object<td_api::viewTrendingStickerSets>(to_integers<int64>(args)));
-    } else if (op == "riss" || op == "rissm" || op == "risse") {
-      string new_order;
-      get_args(args, new_order);
-      send_request(
-          td_api::make_object<td_api::reorderInstalledStickerSets>(as_sticker_type(op), to_integers<int64>(new_order)));
-    } else if (op == "grs") {
-      send_request(td_api::make_object<td_api::getRecentStickers>(as_bool(args)));
-    } else if (op == "ars") {
-      bool is_attached;
-      string sticker_id;
-      get_args(args, is_attached, sticker_id);
-      send_request(td_api::make_object<td_api::addRecentSticker>(is_attached, as_input_file_id(sticker_id)));
-    } else if (op == "rrs") {
-      bool is_attached;
-      string sticker_id;
-      get_args(args, is_attached, sticker_id);
-      send_request(td_api::make_object<td_api::removeRecentSticker>(is_attached, as_input_file_id(sticker_id)));
-    } else if (op == "gfs") {
-      send_request(td_api::make_object<td_api::getFavoriteStickers>());
-    } else if (op == "afs") {
-      send_request(td_api::make_object<td_api::addFavoriteSticker>(as_input_file_id(args)));
-    } else if (op == "rfs") {
-      send_request(td_api::make_object<td_api::removeFavoriteSticker>(as_input_file_id(args)));
-    } else if (op == "crs") {
-      send_request(td_api::make_object<td_api::clearRecentStickers>(as_bool(args)));
-    } else if (op == "gse") {
-      send_request(td_api::make_object<td_api::getStickerEmojis>(as_input_file_id(args)));
-    } else if (op == "se") {
-      send_request(td_api::make_object<td_api::searchEmojis>(args, vector<string>()));
-    } else if (op == "seru") {
-      send_request(td_api::make_object<td_api::searchEmojis>(args, vector<string>{"ru_RU"}));
-    } else if (op == "gke") {
-      send_request(td_api::make_object<td_api::getKeywordEmojis>(args, vector<string>()));
-    } else if (op == "gkeru") {
-      send_request(td_api::make_object<td_api::getKeywordEmojis>(args, vector<string>{"ru_RU"}));
-    } else if (op == "gec" || op == "geces" || op == "geccp" || op == "gecrs") {
-      auto type = [&]() -> td_api::object_ptr<td_api::EmojiCategoryType> {
-        if (op == "geces") {
-          return td_api::make_object<td_api::emojiCategoryTypeEmojiStatus>();
-        }
-        if (op == "geccp") {
-          return td_api::make_object<td_api::emojiCategoryTypeChatPhoto>();
-        }
-        if (op == "gecrs") {
-          return td_api::make_object<td_api::emojiCategoryTypeRegularStickers>();
-        }
-        return td_api::make_object<td_api::emojiCategoryTypeDefault>();
-      }();
-      send_request(td_api::make_object<td_api::getEmojiCategories>(std::move(type)));
-    } else if (op == "gae") {
-      send_request(td_api::make_object<td_api::getAnimatedEmoji>(args));
-    } else if (op == "gesu") {
-      send_request(td_api::make_object<td_api::getEmojiSuggestionsUrl>(args));
-    } else if (op == "gces") {
-      send_request(td_api::make_object<td_api::getCustomEmojiStickers>(to_integers<int64>(args)));
-    } else if (op == "gdcpces") {
-      send_request(td_api::make_object<td_api::getDefaultChatPhotoCustomEmojiStickers>());
-    } else if (op == "gdppces") {
-      send_request(td_api::make_object<td_api::getDefaultProfilePhotoCustomEmojiStickers>());
-    } else if (op == "gdbces") {
-      send_request(td_api::make_object<td_api::getDefaultBackgroundCustomEmojiStickers>());
-    } else if (op == "gsan") {
-      send_request(td_api::make_object<td_api::getSavedAnimations>());
-    } else if (op == "asan") {
-      send_request(td_api::make_object<td_api::addSavedAnimation>(as_input_file_id(args)));
-    } else if (op == "rsan") {
-      send_request(td_api::make_object<td_api::removeSavedAnimation>(as_input_file_id(args)));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "guf") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::getUserFullInfo>(user_id));
-    } else if (op == "gbg") {
-      send_request(td_api::make_object<td_api::getBasicGroup>(as_basic_group_id(args)));
-    } else if (op == "gbgf") {
-      send_request(td_api::make_object<td_api::getBasicGroupFullInfo>(as_basic_group_id(args)));
-    } else if (op == "gsg" || op == "gch") {
-      send_request(td_api::make_object<td_api::getSupergroup>(as_supergroup_id(args)));
-    } else if (op == "gsgf" || op == "gchf") {
-      send_request(td_api::make_object<td_api::getSupergroupFullInfo>(as_supergroup_id(args)));
-    } else if (op == "gsc") {
-      send_request(td_api::make_object<td_api::getSecretChat>(as_secret_chat_id(args)));
-    } else if (op == "scm") {
-      ChatId chat_id;
-      string filter;
-      SearchQuery query;
-      get_args(args, chat_id, filter, query);
-      send_request(td_api::make_object<td_api::searchChatMembers>(chat_id, query.query, query.limit,
-                                                                  as_chat_members_filter(filter)));
-    } else if (op == "gcm") {
-      ChatId chat_id;
-      string member_id;
-      get_args(args, chat_id, member_id);
-      send_request(td_api::make_object<td_api::getChatMember>(chat_id, as_message_sender(member_id)));
-    } else if (op == "GetChatAdministrators") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatAdministrators>(chat_id));
-    } else if (op == "GetSupergroupAdministrators" || op == "GetSupergroupBanned" || op == "GetSupergroupBots" ||
-               op == "GetSupergroupContacts" || op == "GetSupergroupMembers" || op == "GetSupergroupRestricted" ||
-               op == "SearchSupergroupMembers" || op == "SearchSupergroupMentions") {
-      string supergroup_id;
-      string message_thread_id;
-      int32 offset;
-      SearchQuery query;
-      if (op == "SearchSupergroupMentions") {
-        get_args(args, message_thread_id, args);
-      }
-      get_args(args, supergroup_id, offset, query);
-      send_request(td_api::make_object<td_api::getSupergroupMembers>(
-          as_supergroup_id(supergroup_id), as_supergroup_members_filter(op, query.query, message_thread_id), offset,
-          query.limit));
-    } else if (op == "gd") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChat>(chat_id));
-    } else if (op == "open") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::openChat>(chat_id));
-      opened_chat_id_ = chat_id;
-    } else if (op == "close") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::closeChat>(chat_id));
-    } else if (op == "gm") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getMessage>(chat_id, message_id));
-    } else if (op == "gmf") {
-      ChatId chat_id;
-      int64 from_message_id;
-      int64 to_message_id;
-      get_args(args, chat_id, from_message_id, to_message_id);
-      for (auto message_id = from_message_id; message_id <= to_message_id; message_id++) {
-        send_request(td_api::make_object<td_api::getMessage>(chat_id, message_id << 20));
-      }
-    } else if (op == "gml") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getMessageLocally>(chat_id, message_id));
-    } else if (op == "grm") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getRepliedMessage>(chat_id, message_id));
-    } else if (op == "gmt") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getMessageThread>(chat_id, message_id));
-    } else if (op == "gmrd") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getMessageReadDate>(chat_id, message_id));
-    } else if (op == "gmv") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getMessageViewers>(chat_id, message_id));
-    } else if (op == "gcpm") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatPinnedMessage>(chat_id));
-    } else if (op == "gms") {
-      ChatId chat_id;
-      string message_ids;
-      get_args(args, chat_id, message_ids);
-      send_request(td_api::make_object<td_api::getMessages>(chat_id, as_message_ids(message_ids)));
-    } else if (op == "gmp") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getMessageProperties>(chat_id, message_id));
-    } else if (op == "gcspm") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatSponsoredMessages>(chat_id));
-    } else if (op == "ccspm") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(
-          td_api::make_object<td_api::clickChatSponsoredMessage>(chat_id, message_id, rand_bool(), rand_bool()));
-    } else if (op == "rcspm") {
-      ChatId chat_id;
-      MessageId message_id;
-      string option_id;
-      get_args(args, chat_id, message_id, option_id);
-      send_request(td_api::make_object<td_api::reportChatSponsoredMessage>(chat_id, message_id, option_id));
-    } else if (op == "gssc") {
-      send_request(td_api::make_object<td_api::getSearchSponsoredChats>(args));
-    } else if (op == "vsc") {
-      send_request(td_api::make_object<td_api::viewSponsoredChat>(to_integer<int64>(args)));
-    } else if (op == "osc") {
-      send_request(td_api::make_object<td_api::openSponsoredChat>(to_integer<int64>(args)));
-    } else if (op == "rsc") {
-      int64 unique_id;
-      string option_id;
-      get_args(args, unique_id, option_id);
-      send_request(td_api::make_object<td_api::reportSponsoredChat>(unique_id, option_id));
-    } else if (op == "gmlink") {
-      ChatId chat_id;
-      MessageId message_id;
-      int32 media_timestamp;
-      bool for_album;
-      bool for_comment;
-      get_args(args, chat_id, message_id, media_timestamp, for_album, for_comment);
-      send_request(
-          td_api::make_object<td_api::getMessageLink>(chat_id, message_id, media_timestamp, for_album, for_comment));
-    } else if (op == "gmec") {
-      ChatId chat_id;
-      MessageId message_id;
-      bool for_album;
-      get_args(args, chat_id, message_id, for_album);
-      send_request(td_api::make_object<td_api::getMessageEmbeddingCode>(chat_id, message_id, for_album));
-    } else if (op == "gmli") {
-      send_request(td_api::make_object<td_api::getMessageLinkInfo>(args));
-    } else if (op == "tt") {
-      string text;
-      string to_language_code;
-      get_args(args, to_language_code, text);
-      send_request(td_api::make_object<td_api::translateText>(as_formatted_text(text), to_language_code));
-    } else if (op == "tmt") {
-      ChatId chat_id;
-      MessageId message_id;
-      string to_language_code;
-      get_args(args, chat_id, message_id, to_language_code);
-      send_request(td_api::make_object<td_api::translateMessageText>(chat_id, message_id, to_language_code));
-    } else if (op == "rs") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::recognizeSpeech>(chat_id, message_id));
-    } else if (op == "rsr") {
-      ChatId chat_id;
-      MessageId message_id;
-      bool is_good;
-      get_args(args, chat_id, message_id, is_good);
-      send_request(td_api::make_object<td_api::rateSpeechRecognition>(chat_id, message_id, is_good));
-    } else if (op == "gf") {
-      FileId file_id;
-      get_args(args, file_id);
-      send_request(td_api::make_object<td_api::getFile>(file_id));
-    } else if (op == "gfdps") {
-      FileId file_id;
-      int64 offset;
-      get_args(args, file_id, offset);
-      send_request(td_api::make_object<td_api::getFileDownloadedPrefixSize>(file_id, offset));
-    } else if (op == "rfp") {
-      FileId file_id;
-      int64 offset;
-      int64 count;
-      get_args(args, file_id, offset, count);
-      send_request(td_api::make_object<td_api::readFilePart>(file_id, offset, count));
-    } else if (op == "grf") {
-      send_request(td_api::make_object<td_api::getRemoteFile>(args, nullptr));
-    } else if (op == "gmtf") {
-      string latitude;
-      string longitude;
-      int32 zoom;
-      int32 width;
-      int32 height;
-      int32 scale;
-      ChatId chat_id;
-      get_args(args, latitude, longitude, zoom, width, height, scale, chat_id);
-      send_request(td_api::make_object<td_api::getMapThumbnailFile>(as_location(latitude, longitude, string()), zoom,
-                                                                    width, height, scale, chat_id));
-    } else if (op == "df" || op == "dff" || op == "dfs") {
-      FileId file_id;
-      int64 offset;
-      int64 limit;
-      int32 priority;
-      get_args(args, file_id, offset, limit, priority);
-      if (priority <= 0) {
-        priority = 1;
-      }
-      int32 max_file_id = file_id.file_id;
-      int32 min_file_id = (op == "dff" ? 1 : max_file_id);
-      for (int32 i = min_file_id; i <= max_file_id; i++) {
-        send_request(td_api::make_object<td_api::downloadFile>(i, priority, offset, limit, op == "dfs"));
-      }
-    } else if (op == "cdf") {
-      FileId file_id;
-      get_args(args, file_id);
-      send_request(td_api::make_object<td_api::cancelDownloadFile>(file_id, false));
-    } else if (op == "gsfn") {
-      FileId file_id;
-      string directory_name;
-      get_args(args, file_id, directory_name);
-      send_request(td_api::make_object<td_api::getSuggestedFileName>(file_id, directory_name));
-    } else if (op == "uf" || op == "ufs" || op == "ufse") {
-      string file_path;
-      int32 priority;
-      get_args(args, file_path, priority);
-      if (priority <= 0) {
-        priority = 1;
-      }
-      td_api::object_ptr<td_api::FileType> type = td_api::make_object<td_api::fileTypePhoto>();
-      if (op == "ufs") {
-        type = td_api::make_object<td_api::fileTypeSecret>();
-      }
-      if (op == "ufse") {
-        type = td_api::make_object<td_api::fileTypeSecure>();
-      }
-      send_request(
-          td_api::make_object<td_api::preliminaryUploadFile>(as_input_file(file_path), std::move(type), priority));
-    } else if (op == "ufg") {
-      string file_path;
-      string conversion;
-      get_args(args, file_path, conversion);
-      send_request(td_api::make_object<td_api::preliminaryUploadFile>(as_generated_file(file_path, conversion),
-                                                                      td_api::make_object<td_api::fileTypePhoto>(), 1));
-    } else if (op == "cuf") {
-      FileId file_id;
-      get_args(args, file_id);
-      send_request(td_api::make_object<td_api::cancelPreliminaryUploadFile>(file_id));
-    } else if (op == "delf") {
-      FileId file_id;
-      get_args(args, file_id);
-      send_request(td_api::make_object<td_api::deleteFile>(file_id));
-    } else if (op == "aftd") {
-      FileId file_id;
-      ChatId chat_id;
-      MessageId message_id;
-      int32 priority;
-      get_args(args, file_id, chat_id, message_id, priority);
-      send_request(td_api::make_object<td_api::addFileToDownloads>(file_id, chat_id, message_id, max(priority, 1)));
-    } else if (op == "tdip") {
-      FileId file_id;
-      bool is_paused;
-      get_args(args, file_id, is_paused);
-      send_request(td_api::make_object<td_api::toggleDownloadIsPaused>(file_id, is_paused));
-    } else if (op == "tadap") {
-      bool are_paused;
-      get_args(args, are_paused);
-      send_request(td_api::make_object<td_api::toggleAllDownloadsArePaused>(are_paused));
-    } else if (op == "rffd") {
-      FileId file_id;
-      bool delete_from_cache;
-      get_args(args, file_id, delete_from_cache);
-      send_request(td_api::make_object<td_api::removeFileFromDownloads>(file_id, delete_from_cache));
-    } else if (op == "raffd" || op == "raffda" || op == "raffdc") {
-      bool delete_from_cache;
-      get_args(args, delete_from_cache);
-      send_request(td_api::make_object<td_api::removeAllFilesFromDownloads>(op.back() == 'a', op.back() == 'c',
-                                                                            delete_from_cache));
-    } else if (op == "sfd" || op == "sfda" || op == "sfdc") {
-      string offset;
-      SearchQuery query;
-      get_args(args, offset, query);
-      send_request(td_api::make_object<td_api::searchFileDownloads>(query.query, op.back() == 'a', op.back() == 'c',
-                                                                    offset, query.limit));
-    } else if (op == "dm" || op == "dmr") {
-      ChatId chat_id;
-      string message_ids;
-      get_args(args, chat_id, message_ids);
-      send_request(td_api::make_object<td_api::deleteMessages>(chat_id, as_message_ids(message_ids), op == "dmr"));
-    } else if (op == "fm" || op == "cm") {
-      ChatId chat_id;
-      ChatId from_chat_id;
-      string message_ids;
-      get_args(args, chat_id, from_chat_id, message_ids);
-      send_request(td_api::make_object<td_api::forwardMessages>(
-          chat_id, message_thread_id_, from_chat_id, as_message_ids(message_ids), default_message_send_options(),
-          op[0] == 'c', rand_bool()));
-    } else if (op == "sqrsm") {
-      ChatId chat_id;
-      ShortcutId shortcut_id;
-      get_args(args, chat_id, shortcut_id);
-      send_request(
-          td_api::make_object<td_api::sendQuickReplyShortcutMessages>(chat_id, shortcut_id, Random::fast(-1000, -1)));
-    } else if (op == "resend") {
-      ChatId chat_id;
-      string message_ids;
-      string quote;
-      int32 quote_position;
-      get_args(args, chat_id, message_ids, quote, quote_position);
-      if (quick_reply_shortcut_name_.empty()) {
-        send_request(td_api::make_object<td_api::resendMessages>(
-            chat_id, as_message_ids(message_ids),
-            td_api::make_object<td_api::inputTextQuote>(as_formatted_text(quote), quote_position),
-            paid_message_star_count_));
-      } else {
-        send_request(td_api::make_object<td_api::readdQuickReplyShortcutMessages>(quick_reply_shortcut_name_,
-                                                                                  as_message_ids(message_ids)));
-      }
-    } else if (op == "csc") {
-      send_request(td_api::make_object<td_api::createSecretChat>(as_secret_chat_id(args)));
-    } else if (op == "cnsc") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::createNewSecretChat>(user_id));
-    } else if (op == "closeSC" || op == "cancelSC") {
-      send_request(td_api::make_object<td_api::closeSecretChat>(as_secret_chat_id(args)));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "cc") {
-      UserId user_id;
-      GroupCallId group_call_id;
-      get_args(args, user_id, group_call_id);
-      send_request(td_api::make_object<td_api::createCall>(
-          user_id, td_api::make_object<td_api::callProtocol>(true, true, 65, 65, vector<string>{"2.6", "3.0"}),
-          rand_bool(), group_call_id));
-    } else if (op == "ac") {
-      CallId call_id;
-      get_args(args, call_id);
-      send_request(td_api::make_object<td_api::acceptCall>(
-          call_id, td_api::make_object<td_api::callProtocol>(true, true, 65, 65, vector<string>{"2.6", "3.0"})));
-    } else if (op == "scsd") {
-      CallId call_id;
-      get_args(args, call_id);
-      send_request(td_api::make_object<td_api::sendCallSignalingData>(call_id, "abacaba"));
-    } else if (op == "dc") {
-      CallId call_id;
-      bool is_disconnected;
-      get_args(args, call_id, is_disconnected);
-      send_request(td_api::make_object<td_api::discardCall>(call_id, is_disconnected, 0, rand_bool(), 0));
-    } else if (op == "scr") {
-      CallId call_id;
-      int32 rating;
-      get_args(args, call_id, rating);
-      vector<td_api::object_ptr<td_api::CallProblem>> problems;
-      problems.emplace_back(td_api::make_object<td_api::callProblemNoise>());
-      problems.emplace_back(td_api::make_object<td_api::callProblemNoise>());
-      problems.emplace_back(td_api::make_object<td_api::callProblemDistortedVideo>());
-      problems.emplace_back(nullptr);
-      problems.emplace_back(td_api::make_object<td_api::callProblemNoise>());
-      problems.emplace_back(td_api::make_object<td_api::callProblemEcho>());
-      problems.emplace_back(td_api::make_object<td_api::callProblemPixelatedVideo>());
-      problems.emplace_back(td_api::make_object<td_api::callProblemDistortedSpeech>());
-      send_request(td_api::make_object<td_api::sendCallRating>(call_id, rating, "Wow, such good call! (TDLib test)",
-                                                               std::move(problems)));
-    } else if (op == "scdi") {
-      CallId call_id;
-      get_args(args, call_id);
-      send_request(td_api::make_object<td_api::sendCallDebugInformation>(call_id, "{}"));
-    } else if (op == "sclog") {
-      CallId call_id;
-      string log_file;
-      get_args(args, call_id, log_file);
-      send_request(td_api::make_object<td_api::sendCallLog>(call_id, as_input_file(log_file)));
-    } else if (op == "gvcap") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getVideoChatAvailableParticipants>(chat_id));
-    } else if (op == "svcdp") {
-      ChatId chat_id;
-      string participant_id;
-      get_args(args, chat_id, participant_id);
-      send_request(
-          td_api::make_object<td_api::setVideoChatDefaultParticipant>(chat_id, as_message_sender(participant_id)));
-    } else if (op == "cvc") {
-      ChatId chat_id;
-      string title;
-      int32 start_date;
-      bool is_rtmp_stream;
-      get_args(args, chat_id, title, start_date, is_rtmp_stream);
-      send_request(td_api::make_object<td_api::createVideoChat>(chat_id, title, start_date, is_rtmp_stream));
-    } else if (op == "cgc") {
-      CallId call_id;
-      get_args(args, call_id);
-      send_request(td_api::make_object<td_api::createGroupCall>(call_id));
-    } else if (op == "gvcru") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getVideoChatRtmpUrl>(chat_id));
-    } else if (op == "rvcru") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::replaceVideoChatRtmpUrl>(chat_id));
-    } else if (op == "ggc") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::getGroupCall>(group_call_id));
-    } else if (op == "ggcs") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::getGroupCallStreams>(group_call_id));
-    } else if (op == "ggcss") {
-      GroupCallId group_call_id;
-      int32 channel_id;
-      get_args(args, group_call_id, channel_id);
-      send_request(td_api::make_object<td_api::getGroupCallStreamSegment>(
-          group_call_id, (std::time(nullptr) - 5) * 1000, 0, channel_id, nullptr));
-    } else if (op == "ssgc") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::startScheduledGroupCall>(group_call_id));
-    } else if (op == "tgcesn" || op == "tgcesne") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(
-          td_api::make_object<td_api::toggleGroupCallEnabledStartNotification>(group_call_id, op == "tgcesne"));
-    } else if (op == "jgc" || op == "jgcv" || op == "sgcss") {
-      GroupCallId group_call_id;
-      string participant_id;
-      string invite_hash;
-      int64 key_fingerprint;
-      get_args(args, group_call_id, participant_id, invite_hash, key_fingerprint);
-
-      auto payload = PSTRING() << "{\"ufrag\":\"ufrag\",\"pwd\":\"pwd\",\"fingerprints\":[{\"hash\":\"hash\",\"setup\":"
-                                  "\"setup\",\"fingerprint\":\"fingerprint\"},{\"hash\":\"h2\",\"setup\":\"s2\","
-                                  "\"fingerprint\":\"fingerprint2\"}],\"ssrc\":"
-                               << group_call_source_ << ',';
-      if (op == "jgc") {
-        payload.back() = '}';
-      } else {
-        string sim_sources = "[1,2]";
-        string fid_sources = "[3,4]";
-        if (op == "sgcss") {
-          sim_sources = "[5,6]";
-          fid_sources = "[7,8]";
-        }
-        payload +=
-            "\"payload-types\":[{\"id\":12345,\"name\":\"opus\",\"clockrate\":48000,\"channels\":2,\"rtcp-fbs\":[{"
-            "\"type\":\"transport-cc\",\"subtype\":\"subtype1\"},{\"type\":\"type2\",\"subtype\":\"subtype2\"}],"
-            "\"parameters\":{\"minptime\":\"10\",\"useinbandfec\":\"1\"}}],\"rtp-hdrexts\":[{\"id\":1,\"uri\":\"urn:"
-            "ietf:params:rtp-hdrext:ssrc-audio-level\"}],\"ssrc-groups\":[{\"sources\":" +
-            sim_sources + ",\"semantics\":\"SIM\"},{\"sources\":" + fid_sources + ",\"semantics\":\"FID\"}]}";
-      }
-      if (op == "sgcss") {
-        send_request(td_api::make_object<td_api::startGroupCallScreenSharing>(group_call_id, group_call_source_ + 1,
-                                                                              std::move(payload)));
-      } else {
-        send_request(td_api::make_object<td_api::joinGroupCall>(group_call_id, as_message_sender(participant_id),
-                                                                group_call_source_, std::move(payload), true, true,
-                                                                invite_hash, key_fingerprint));
-      }
-    } else if (op == "tgcssip") {
-      GroupCallId group_call_id;
-      bool is_paused;
-      get_args(args, group_call_id, is_paused);
-      send_request(td_api::make_object<td_api::toggleGroupCallScreenSharingIsPaused>(group_call_id, is_paused));
-    } else if (op == "egcss") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::endGroupCallScreenSharing>(group_call_id));
-    } else if (op == "sgct") {
-      GroupCallId group_call_id;
-      string title;
-      get_args(args, group_call_id, title);
-      send_request(td_api::make_object<td_api::setGroupCallTitle>(group_call_id, title));
-    } else if (op == "tgcmnp" || op == "tgcmnpe") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::toggleGroupCallMuteNewParticipants>(group_call_id, op == "tgcmnpe"));
-    } else if (op == "rgcil") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::revokeGroupCallInviteLink>(group_call_id));
-    } else if (op == "tgcimvp") {
-      GroupCallId group_call_id;
-      bool is_my_video_paused;
-      get_args(args, group_call_id, is_my_video_paused);
-      send_request(td_api::make_object<td_api::toggleGroupCallIsMyVideoPaused>(group_call_id, is_my_video_paused));
-    } else if (op == "tgcimve") {
-      GroupCallId group_call_id;
-      bool is_my_video_enabled;
-      get_args(args, group_call_id, is_my_video_enabled);
-      send_request(td_api::make_object<td_api::toggleGroupCallIsMyVideoEnabled>(group_call_id, is_my_video_enabled));
-    } else if (op == "sgcpis") {
-      GroupCallId group_call_id;
-      int32 source_id;
-      bool is_speaking;
-      get_args(args, group_call_id, source_id, is_speaking);
-      send_request(
-          td_api::make_object<td_api::setGroupCallParticipantIsSpeaking>(group_call_id, source_id, is_speaking));
-    } else if (op == "igcp") {
-      GroupCallId group_call_id;
-      string user_ids;
-      get_args(args, group_call_id, user_ids);
-      send_request(td_api::make_object<td_api::inviteGroupCallParticipants>(group_call_id, as_user_ids(user_ids)));
-    } else if (op == "ggcil") {
-      GroupCallId group_call_id;
-      bool can_self_unmute;
-      get_args(args, group_call_id, can_self_unmute);
-      send_request(td_api::make_object<td_api::getGroupCallInviteLink>(group_call_id, can_self_unmute));
-    } else if (op == "sgcr") {
-      GroupCallId group_call_id;
-      string title;
-      bool record_video;
-      bool use_portrait_orientation;
-      get_args(args, group_call_id, title, record_video, use_portrait_orientation);
-      send_request(td_api::make_object<td_api::startGroupCallRecording>(group_call_id, title, record_video,
-                                                                        use_portrait_orientation));
-    } else if (op == "egcr") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::endGroupCallRecording>(group_call_id));
-    } else if (op == "tgcpim") {
-      GroupCallId group_call_id;
-      string participant_id;
-      bool is_muted;
-      get_args(args, group_call_id, participant_id, is_muted);
-      send_request(td_api::make_object<td_api::toggleGroupCallParticipantIsMuted>(
-          group_call_id, as_message_sender(participant_id), is_muted));
-    } else if (op == "sgcpvl") {
-      GroupCallId group_call_id;
-      string participant_id;
-      int32 volume_level;
-      get_args(args, group_call_id, participant_id, volume_level);
-      send_request(td_api::make_object<td_api::setGroupCallParticipantVolumeLevel>(
-          group_call_id, as_message_sender(participant_id), volume_level));
-    } else if (op == "tgcpihr") {
-      GroupCallId group_call_id;
-      string participant_id;
-      bool is_hand_raised;
-      get_args(args, group_call_id, participant_id, is_hand_raised);
-      send_request(td_api::make_object<td_api::toggleGroupCallParticipantIsHandRaised>(
-          group_call_id, as_message_sender(participant_id), is_hand_raised));
-    } else if (op == "lgcp") {
-      GroupCallId group_call_id;
-      string limit;
-      get_args(args, group_call_id, limit);
-      send_request(td_api::make_object<td_api::loadGroupCallParticipants>(group_call_id, as_limit(limit)));
-    } else if (op == "lgc") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::leaveGroupCall>(group_call_id));
-    } else if (op == "egc") {
-      GroupCallId group_call_id;
-      get_args(args, group_call_id);
-      send_request(td_api::make_object<td_api::endGroupCall>(group_call_id));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "rpcil") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::replacePrimaryChatInviteLink>(chat_id));
-    } else if (op == "ccilt") {
-      ChatId chat_id;
-      string name;
-      int32 expiration_date;
-      int32 member_limit;
-      bool creates_join_request;
-      get_args(args, chat_id, name, expiration_date, member_limit, creates_join_request);
-      send_request(td_api::make_object<td_api::createChatInviteLink>(chat_id, name, expiration_date, member_limit,
-                                                                     creates_join_request));
-    } else if (op == "ccsil") {
-      ChatId chat_id;
-      string name;
-      int32 period;
-      int64 star_count;
-      get_args(args, chat_id, name, period, star_count);
-      send_request(td_api::make_object<td_api::createChatSubscriptionInviteLink>(
-          chat_id, name, td_api::make_object<td_api::starSubscriptionPricing>(period, star_count)));
-    } else if (op == "ecil") {
-      ChatId chat_id;
-      string invite_link;
-      string name;
-      int32 expiration_date;
-      int32 member_limit;
-      bool creates_join_request;
-      get_args(args, chat_id, invite_link, name, expiration_date, member_limit, creates_join_request);
-      send_request(td_api::make_object<td_api::editChatInviteLink>(chat_id, invite_link, name, expiration_date,
-                                                                   member_limit, creates_join_request));
-    } else if (op == "ecsil") {
-      ChatId chat_id;
-      string invite_link;
-      string name;
-      get_args(args, chat_id, invite_link, name);
-      send_request(td_api::make_object<td_api::editChatSubscriptionInviteLink>(chat_id, invite_link, name));
-    } else if (op == "rcil") {
-      ChatId chat_id;
-      string invite_link;
-      get_args(args, chat_id, invite_link);
-      send_request(td_api::make_object<td_api::revokeChatInviteLink>(chat_id, invite_link));
-    } else if (op == "gcilc") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatInviteLinkCounts>(chat_id));
-    } else if (op == "gcil") {
-      ChatId chat_id;
-      string invite_link;
-      get_args(args, chat_id, invite_link);
-      send_request(td_api::make_object<td_api::getChatInviteLink>(chat_id, invite_link));
-    } else if (op == "gcils" || op == "gcilr") {
-      ChatId chat_id;
-      UserId creator_user_id;
-      int32 offset_date;
-      string offset_invite_link;
-      string limit;
-      get_args(args, chat_id, creator_user_id, offset_date, offset_invite_link, limit);
-      send_request(td_api::make_object<td_api::getChatInviteLinks>(chat_id, creator_user_id, op == "gcilr", offset_date,
-                                                                   offset_invite_link, as_limit(limit)));
-    } else if (op == "gcilm" || op == "gcilme") {
-      ChatId chat_id;
-      string invite_link;
-      UserId offset_user_id;
-      int32 offset_date;
-      string limit;
-      get_args(args, chat_id, invite_link, offset_user_id, offset_date, limit);
-      send_request(td_api::make_object<td_api::getChatInviteLinkMembers>(
-          chat_id, invite_link, op == "gcilme",
-          td_api::make_object<td_api::chatInviteLinkMember>(offset_user_id, offset_date, false, 0), as_limit(limit)));
-    } else if (op == "gcjr") {
-      ChatId chat_id;
-      string invite_link;
-      string query;
-      UserId offset_user_id;
-      int32 offset_date;
-      string limit;
-      get_args(args, chat_id, invite_link, query, offset_user_id, offset_date, limit);
-      send_request(td_api::make_object<td_api::getChatJoinRequests>(
-          chat_id, invite_link, query,
-          td_api::make_object<td_api::chatJoinRequest>(offset_user_id, offset_date, string()), as_limit(limit)));
-    } else if (op == "pcjr") {
-      ChatId chat_id;
-      UserId user_id;
-      bool approve;
-      get_args(args, chat_id, user_id, approve);
-      send_request(td_api::make_object<td_api::processChatJoinRequest>(chat_id, user_id, approve));
-    } else if (op == "pcjrs") {
-      ChatId chat_id;
-      string invite_link;
-      bool approve;
-      get_args(args, chat_id, invite_link, approve);
-      send_request(td_api::make_object<td_api::processChatJoinRequests>(chat_id, invite_link, approve));
-    } else if (op == "drcil") {
-      ChatId chat_id;
-      string invite_link;
-      get_args(args, chat_id, invite_link);
-      send_request(td_api::make_object<td_api::deleteRevokedChatInviteLink>(chat_id, invite_link));
-    } else if (op == "darcil") {
-      ChatId chat_id;
-      UserId creator_user_id;
-      get_args(args, chat_id, creator_user_id);
-      send_request(td_api::make_object<td_api::deleteAllRevokedChatInviteLinks>(chat_id, creator_user_id));
-    } else if (op == "ccil") {
-      send_request(td_api::make_object<td_api::checkChatInviteLink>(args));
-    } else if (op == "jcbil") {
-      send_request(td_api::make_object<td_api::joinChatByInviteLink>(args));
-    } else if (op == "sq") {
-      string text;
-      string quote;
-      int32 quote_position;
-      get_args(args, text, quote, quote_position);
-      execute(
-          td_api::make_object<td_api::searchQuote>(as_formatted_text(text), as_formatted_text(quote), quote_position));
-    } else if (op == "gte") {
-      send_request(td_api::make_object<td_api::getTextEntities>(args));
-    } else if (op == "gtee") {
-      execute(td_api::make_object<td_api::getTextEntities>(args));
-    } else if (op == "pm") {
-      send_request(
-          td_api::make_object<td_api::parseMarkdown>(td_api::make_object<td_api::formattedText>(args, Auto())));
-    } else if (op == "pte") {
-      send_request(
-          td_api::make_object<td_api::parseTextEntities>(args, td_api::make_object<td_api::textParseModeMarkdown>(2)));
-    } else if (op == "pteh") {
-      send_request(
-          td_api::make_object<td_api::parseTextEntities>(args, td_api::make_object<td_api::textParseModeHTML>()));
-    } else if (op == "ptes") {
-      execute(
-          td_api::make_object<td_api::parseTextEntities>(args, td_api::make_object<td_api::textParseModeMarkdown>(2)));
-    } else if (op == "ptehs") {
-      execute(td_api::make_object<td_api::parseTextEntities>(args, td_api::make_object<td_api::textParseModeHTML>()));
-    } else if (op == "ssbp") {
-      string strings;
-      string query;
-      string limit;
-      bool return_none_for_empty_query;
-      get_args(args, strings, query, limit, return_none_for_empty_query);
-      execute(td_api::make_object<td_api::searchStringsByPrefix>(autosplit_str(strings), query, as_limit(limit),
-                                                                 return_none_for_empty_query));
-    } else if (op == "gcfe") {
-      execute(td_api::make_object<td_api::getCountryFlagEmoji>(trim(args)));
-    } else if (op == "gfmt") {
-      execute(td_api::make_object<td_api::getFileMimeType>(trim(args)));
-    } else if (op == "gfe") {
-      execute(td_api::make_object<td_api::getFileExtension>(trim(args)));
-    } else if (op == "cfn") {
-      execute(td_api::make_object<td_api::cleanFileName>(args));
-    } else if (op == "gjv") {
-      execute(td_api::make_object<td_api::getJsonValue>(args));
-    } else if (op == "gjvtest") {
-      execute(td_api::make_object<td_api::getJsonValue>("\"aba\200caba\""));
-      execute(td_api::make_object<td_api::getJsonValue>("\"\\u0080\""));
-      execute(td_api::make_object<td_api::getJsonValue>("\"\\uD800\""));
-    } else if (op == "gjs") {
-      auto test_get_json_string = [&](td_api::object_ptr<td_api::JsonValue> &&json_value) {
-        execute(td_api::make_object<td_api::getJsonString>(std::move(json_value)));
-      };
-
-      test_get_json_string(nullptr);
-      test_get_json_string(td_api::make_object<td_api::jsonValueNull>());
-      test_get_json_string(td_api::make_object<td_api::jsonValueBoolean>(true));
-      test_get_json_string(td_api::make_object<td_api::jsonValueNumber>(123456789123.0));
-      test_get_json_string(td_api::make_object<td_api::jsonValueString>(string("aba\0caba", 8)));
-      test_get_json_string(td_api::make_object<td_api::jsonValueString>("aba\200caba"));
-
-      auto inner_array = td_api::make_object<td_api::jsonValueArray>();
-      inner_array->values_.emplace_back(td_api::make_object<td_api::jsonValueBoolean>(false));
-      auto array = td_api::make_object<td_api::jsonValueArray>();
-      array->values_.emplace_back(nullptr);
-      array->values_.emplace_back(std::move(inner_array));
-      array->values_.emplace_back(td_api::make_object<td_api::jsonValueNull>());
-      array->values_.emplace_back(td_api::make_object<td_api::jsonValueNumber>(-1));
-      test_get_json_string(std::move(array));
-
-      auto object = td_api::make_object<td_api::jsonValueObject>();
-      object->members_.emplace_back(
-          td_api::make_object<td_api::jsonObjectMember>("", td_api::make_object<td_api::jsonValueString>("test")));
-      object->members_.emplace_back(td_api::make_object<td_api::jsonObjectMember>("a", nullptr));
-      object->members_.emplace_back(td_api::make_object<td_api::jsonObjectMember>("\x80", nullptr));
-      object->members_.emplace_back(nullptr);
-      object->members_.emplace_back(
-          td_api::make_object<td_api::jsonObjectMember>("a", td_api::make_object<td_api::jsonValueNull>()));
-      test_get_json_string(std::move(object));
-    } else if (op == "gtpjs") {
-      execute(td_api::make_object<td_api::getThemeParametersJsonString>(as_theme_parameters()));
-    } else if (op == "gac") {
-      send_request(td_api::make_object<td_api::getApplicationConfig>());
-    } else if (op == "sale") {
-      string type;
-      ChatId chat_id;
-      string json;
-      get_args(args, type, chat_id, json);
-      auto result = execute(td_api::make_object<td_api::getJsonValue>(json));
-      if (result->get_id() == td_api::error::ID) {
-        LOG(ERROR) << to_string(result);
-      } else {
-        send_request(td_api::make_object<td_api::saveApplicationLogEvent>(
-            type, chat_id, move_tl_object_as<td_api::JsonValue>(result)));
-      }
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "scdm") {
-      ChatId chat_id;
-      string message;
-      get_args(args, chat_id, message);
-      td_api::object_ptr<td_api::draftMessage> draft_message;
-      auto reply_to = get_input_message_reply_to();
-      if (reply_to != nullptr || !message.empty()) {
-        vector<td_api::object_ptr<td_api::textEntity>> entities;
-        if (!message.empty()) {
-          entities.push_back(
-              td_api::make_object<td_api::textEntity>(0, 1, td_api::make_object<td_api::textEntityTypePre>()));
-        }
-        draft_message = td_api::make_object<td_api::draftMessage>(
-            std::move(reply_to), 0,
-            td_api::make_object<td_api::inputMessageText>(as_formatted_text(message, std::move(entities)),
-                                                          get_link_preview_options(), false),
-            message_effect_id_);
-      }
-      send_request(
-          td_api::make_object<td_api::setChatDraftMessage>(chat_id, message_thread_id_, std::move(draft_message)));
-    } else if (op == "scdmvn") {
-      ChatId chat_id;
-      string video;
-      get_args(args, chat_id, video);
-      send_request(td_api::make_object<td_api::setChatDraftMessage>(
-          chat_id, message_thread_id_,
-          td_api::make_object<td_api::draftMessage>(
-              nullptr, 0,
-              td_api::make_object<td_api::inputMessageVideoNote>(as_input_file(video), get_input_thumbnail(), 10, 5,
-                                                                 get_message_self_destruct_type()),
-              message_effect_id_)));
-    } else if (op == "scdmvoice") {
-      ChatId chat_id;
-      string voice;
-      get_args(args, chat_id, voice);
-      send_request(td_api::make_object<td_api::setChatDraftMessage>(
-          chat_id, message_thread_id_,
-          td_api::make_object<td_api::draftMessage>(
-              nullptr, 0,
-              td_api::make_object<td_api::inputMessageVoiceNote>(as_input_file(voice), 0, "abacaba", get_caption(),
-                                                                 get_message_self_destruct_type()),
-              message_effect_id_)));
-    } else if (op == "cadm") {
-      send_request(td_api::make_object<td_api::clearAllDraftMessages>());
-    } else if (op == "tchpc") {
-      ChatId chat_id;
-      bool has_protected_content;
-      get_args(args, chat_id, has_protected_content);
-      send_request(td_api::make_object<td_api::toggleChatHasProtectedContent>(chat_id, has_protected_content));
-    } else if (op == "tcip" || op == "tcipa" || begins_with(op, "tcip-")) {
-      ChatId chat_id;
-      bool is_pinned;
-      get_args(args, chat_id, is_pinned);
-      send_request(td_api::make_object<td_api::toggleChatIsPinned>(as_chat_list(op), chat_id, is_pinned));
-    } else if (op == "tcimau") {
-      ChatId chat_id;
-      bool is_marked_as_unread;
-      get_args(args, chat_id, is_marked_as_unread);
-      send_request(td_api::make_object<td_api::toggleChatIsMarkedAsUnread>(chat_id, is_marked_as_unread));
-    } else if (op == "tcvat") {
-      ChatId chat_id;
-      bool view_as_topics;
-      get_args(args, chat_id, view_as_topics);
-      send_request(td_api::make_object<td_api::toggleChatViewAsTopics>(chat_id, view_as_topics));
-    } else if (op == "tcit") {
-      ChatId chat_id;
-      bool is_translatable;
-      get_args(args, chat_id, is_translatable);
-      send_request(td_api::make_object<td_api::toggleChatIsTranslatable>(chat_id, is_translatable));
-    } else if (op == "smsbl") {
-      string sender_id;
-      string block_list;
-      get_args(args, sender_id, block_list);
-      send_request(td_api::make_object<td_api::setMessageSenderBlockList>(as_message_sender(sender_id),
-                                                                          as_block_list(block_list)));
-    } else if (op == "bmsfr") {
-      MessageId message_id;
-      bool delete_message;
-      bool delete_all_messages;
-      bool report_spam;
-      get_args(args, message_id, delete_message, delete_all_messages, report_spam);
-      send_request(td_api::make_object<td_api::blockMessageSenderFromReplies>(message_id, delete_message,
-                                                                              delete_all_messages, report_spam));
-    } else if (op == "tcddn") {
-      ChatId chat_id;
-      bool default_disable_notification;
-      get_args(args, chat_id, default_disable_notification);
-      send_request(
-          td_api::make_object<td_api::toggleChatDefaultDisableNotification>(chat_id, default_disable_notification));
-    } else if (op == "spchats" || op == "spchatsa" || begins_with(op, "spchats-")) {
-      send_request(td_api::make_object<td_api::setPinnedChats>(as_chat_list(op), as_chat_ids(args)));
-    } else if (op == "rcl" || op == "rcla" || begins_with(op, "rcl-")) {
-      send_request(td_api::make_object<td_api::readChatList>(as_chat_list(op)));
-    } else if (op == "gcwe") {
-      string latitude;
-      string longitude;
-      get_args(args, latitude, longitude);
-      send_request(td_api::make_object<td_api::getCurrentWeather>(as_location(latitude, longitude, "0.0")));
-    } else if (op == "gst" || op == "gstl") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      get_args(args, story_sender_chat_id, story_id);
-      send_request(td_api::make_object<td_api::getStory>(story_sender_chat_id, story_id, op == "gstl"));
-    } else if (op == "gctss") {
-      send_request(td_api::make_object<td_api::getChatsToSendStories>());
-    } else if (op == "csst") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::canSendStory>(chat_id));
-    } else if (op == "srsfi") {
-      get_args(args, reposted_story_chat_id_, reposted_story_id_);
-    } else if (op == "ssp" || op == "sspp") {
-      ChatId chat_id;
-      string photo;
-      StoryPrivacySettings rules;
-      InputStoryAreas areas;
-      int32 active_period;
-      bool protect_content;
-      get_args(args, chat_id, photo, rules, areas, active_period, protect_content);
-      send_request(td_api::make_object<td_api::sendStory>(
-          chat_id,
-          td_api::make_object<td_api::inputStoryContentPhoto>(as_input_file(photo), get_added_sticker_file_ids()),
-          areas, get_caption(), rules, active_period ? active_period : 86400, get_reposted_story_full_id(),
-          op == "sspp", protect_content));
-    } else if (op == "ssv" || op == "ssvp") {
-      ChatId chat_id;
-      string video;
-      StoryPrivacySettings rules;
-      InputStoryAreas areas;
-      int32 active_period;
-      double duration;
-      bool protect_content;
-      get_args(args, chat_id, video, rules, areas, active_period, duration, protect_content);
-      send_request(td_api::make_object<td_api::sendStory>(
-          chat_id,
-          td_api::make_object<td_api::inputStoryContentVideo>(as_input_file(video), get_added_sticker_file_ids(),
-                                                              duration, 0.5, true),
-          areas, get_caption(), rules, active_period ? active_period : 86400, get_reposted_story_full_id(),
-          op == "ssvp", protect_content));
-    } else if (op == "esc") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      InputStoryAreas areas;
-      get_args(args, story_sender_chat_id, story_id, areas);
-      send_request(
-          td_api::make_object<td_api::editStory>(story_sender_chat_id, story_id, nullptr, areas, get_caption()));
-    } else if (op == "esp") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      string photo;
-      InputStoryAreas areas;
-      get_args(args, story_sender_chat_id, story_id, photo, areas);
-      send_request(td_api::make_object<td_api::editStory>(
-          story_sender_chat_id, story_id,
-          td_api::make_object<td_api::inputStoryContentPhoto>(as_input_file(photo), get_added_sticker_file_ids()),
-          areas, get_caption()));
-    } else if (op == "esv") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      string video;
-      InputStoryAreas areas;
-      int32 duration;
-      get_args(args, story_sender_chat_id, story_id, video, duration);
-      send_request(td_api::make_object<td_api::editStory>(
-          story_sender_chat_id, story_id,
-          td_api::make_object<td_api::inputStoryContentVideo>(as_input_file(video), get_added_sticker_file_ids(),
-                                                              duration, 0.0, false),
-          areas, get_caption()));
-    } else if (op == "esco") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      double cover_frame_timetamp;
-      get_args(args, story_sender_chat_id, story_id, cover_frame_timetamp);
-      send_request(td_api::make_object<td_api::editStoryCover>(story_sender_chat_id, story_id, cover_frame_timetamp));
-    } else if (op == "ssps") {
-      StoryId story_id;
-      StoryPrivacySettings rules;
-      get_args(args, story_id, rules);
-      send_request(td_api::make_object<td_api::setStoryPrivacySettings>(story_id, rules));
-    } else if (op == "tsiptcp") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      bool is_posted_to_chat_page;
-      get_args(args, story_sender_chat_id, story_id, is_posted_to_chat_page);
-      send_request(td_api::make_object<td_api::toggleStoryIsPostedToChatPage>(story_sender_chat_id, story_id,
-                                                                              is_posted_to_chat_page));
-    } else if (op == "ds") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      get_args(args, story_sender_chat_id, story_id);
-      send_request(td_api::make_object<td_api::deleteStory>(story_sender_chat_id, story_id));
-    } else if (op == "las" || op == "lasa" || op == "lase") {
-      send_request(td_api::make_object<td_api::loadActiveStories>(as_story_list(op)));
-    } else if (op == "scasl" || op == "scasla" || op == "scasle") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::setChatActiveStoriesList>(chat_id, as_story_list(op)));
-    } else if (op == "gcptcps") {
-      ChatId chat_id;
-      StoryId from_story_id;
-      string limit;
-      get_args(args, chat_id, from_story_id, limit);
-      send_request(
-          td_api::make_object<td_api::getChatPostedToChatPageStories>(chat_id, from_story_id, as_limit(limit)));
-    } else if (op == "gcast") {
-      ChatId chat_id;
-      StoryId from_story_id;
-      string limit;
-      get_args(args, chat_id, from_story_id, limit);
-      send_request(td_api::make_object<td_api::getChatArchivedStories>(chat_id, from_story_id, as_limit(limit)));
-    } else if (op == "scps") {
-      ChatId chat_id;
-      get_args(args, chat_id, args);
-      vector<int32> story_ids;
-      while (true) {
-        StoryId story_id;
-        get_args(args, story_id, args);
-        if (story_id <= 0) {
-          break;
-        }
-        story_ids.push_back(story_id);
-      }
-      send_request(td_api::make_object<td_api::setChatPinnedStories>(chat_id, std::move(story_ids)));
-    } else if (op == "gsnse") {
-      send_request(td_api::make_object<td_api::getStoryNotificationSettingsExceptions>());
-    } else if (op == "gcas") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatActiveStories>(chat_id));
-    } else if (op == "os") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      get_args(args, story_sender_chat_id, story_id);
-      send_request(td_api::make_object<td_api::openStory>(story_sender_chat_id, story_id));
-    } else if (op == "cs") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      get_args(args, story_sender_chat_id, story_id);
-      send_request(td_api::make_object<td_api::closeStory>(story_sender_chat_id, story_id));
-    } else if (op == "gsar") {
-      int32 row_size;
-      get_args(args, row_size);
-      send_request(td_api::make_object<td_api::getStoryAvailableReactions>(row_size));
-    } else if (op == "ssr") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      string reaction;
-      bool update_recent_reactions;
-      get_args(args, story_sender_chat_id, story_id, reaction, update_recent_reactions);
-      send_request(td_api::make_object<td_api::setStoryReaction>(story_sender_chat_id, story_id,
-                                                                 as_reaction_type(reaction), update_recent_reactions));
-    } else if (op == "gsi") {
-      StoryId story_id;
-      string limit;
-      string offset;
-      string query;
-      bool only_contacts;
-      bool prefer_forwards;
-      bool prefer_with_reaction;
-      get_args(args, story_id, limit, offset, query, only_contacts, prefer_forwards, prefer_with_reaction);
-      send_request(td_api::make_object<td_api::getStoryInteractions>(story_id, query, only_contacts, prefer_forwards,
-                                                                     prefer_with_reaction, offset, as_limit(limit)));
-    } else if (op == "gcsi") {
-      ChatId chat_id;
-      StoryId story_id;
-      string limit;
-      string offset;
-      string reaction_type;
-      bool prefer_forwards;
-      get_args(args, chat_id, story_id, limit, offset, reaction_type, prefer_forwards);
-      send_request(td_api::make_object<td_api::getChatStoryInteractions>(
-          chat_id, story_id, as_reaction_type(reaction_type), prefer_forwards, offset, as_limit(limit)));
-    } else if (op == "rst") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      string option_id;
-      string text;
-      get_args(args, story_sender_chat_id, story_id, option_id, text);
-      send_request(td_api::make_object<td_api::reportStory>(story_sender_chat_id, story_id, option_id, text));
-    } else if (op == "assm") {
-      send_request(td_api::make_object<td_api::activateStoryStealthMode>());
-    } else if (op == "gcblf") {
-      bool is_channel;
-      int32 level;
-      get_args(args, is_channel, level);
-      send_request(td_api::make_object<td_api::getChatBoostLevelFeatures>(is_channel, level));
-    } else if (op == "gcbf") {
-      bool is_channel;
-      get_args(args, is_channel);
-      send_request(td_api::make_object<td_api::getChatBoostFeatures>(is_channel));
-    } else if (op == "gacbs") {
-      send_request(td_api::make_object<td_api::getAvailableChatBoostSlots>());
-    } else if (op == "gcbs") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatBoostStatus>(chat_id));
-    } else if (op == "bc") {
-      ChatId chat_id;
-      string slot_ids;
-      get_args(args, chat_id, slot_ids);
-      send_request(td_api::make_object<td_api::boostChat>(chat_id, to_integers<int32>(slot_ids)));
-    } else if (op == "gcbl") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatBoostLink>(chat_id));
-    } else if (op == "gcbli") {
-      send_request(td_api::make_object<td_api::getChatBoostLinkInfo>(args));
-    } else if (op == "gcb") {
-      ChatId chat_id;
-      bool only_gift_codes;
-      string offset;
-      string limit;
-      get_args(args, chat_id, only_gift_codes, offset, limit);
-      send_request(td_api::make_object<td_api::getChatBoosts>(chat_id, only_gift_codes, offset, as_limit(limit)));
-    } else if (op == "gucb") {
-      ChatId chat_id;
-      UserId user_id;
-      get_args(args, chat_id, user_id);
-      send_request(td_api::make_object<td_api::getUserChatBoosts>(chat_id, user_id));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "gamb") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::getAttachmentMenuBot>(user_id));
-    } else if (op == "tbiatam") {
-      UserId user_id;
-      bool is_added;
-      bool allow_write_access;
-      get_args(args, user_id, is_added, allow_write_access);
-      send_request(
-          td_api::make_object<td_api::toggleBotIsAddedToAttachmentMenu>(user_id, is_added, allow_write_access));
-    } else if (op == "ggwab") {
-      string offset;
-      string limit;
-      get_args(args, offset, limit);
-      send_request(td_api::make_object<td_api::getGrossingWebAppBots>(offset, as_limit(limit)));
-    } else if (op == "swa") {
-      UserId bot_user_id;
-      string short_name;
-      get_args(args, bot_user_id, short_name);
-      send_request(td_api::make_object<td_api::searchWebApp>(bot_user_id, short_name));
-    } else if (op == "gwap") {
-      UserId bot_user_id;
-      get_args(args, bot_user_id);
-      send_request(td_api::make_object<td_api::getWebAppPlaceholder>(bot_user_id));
-    } else if (op == "gwalu") {
-      ChatId chat_id;
-      UserId bot_user_id;
-      string short_name;
-      string start_parameter;
-      get_args(args, chat_id, bot_user_id, short_name, start_parameter);
-      send_request(td_api::make_object<td_api::getWebAppLinkUrl>(chat_id, bot_user_id, short_name, start_parameter,
-                                                                 true, as_web_app_open_parameters()));
-    } else if (op == "gmwa") {
-      ChatId chat_id;
-      UserId bot_user_id;
-      string start_parameter;
-      get_args(args, chat_id, bot_user_id, start_parameter);
-      send_request(td_api::make_object<td_api::getMainWebApp>(chat_id, bot_user_id, start_parameter,
-                                                              as_web_app_open_parameters()));
-    } else if (op == "gwau") {
-      UserId bot_user_id;
-      string url;
-      get_args(args, bot_user_id, url);
-      send_request(td_api::make_object<td_api::getWebAppUrl>(bot_user_id, url, as_web_app_open_parameters()));
-    } else if (op == "swad") {
-      UserId bot_user_id;
-      string button_text;
-      string data;
-      get_args(args, bot_user_id, button_text, data);
-      send_request(td_api::make_object<td_api::sendWebAppData>(bot_user_id, button_text, data));
-    } else if (op == "owa") {
-      ChatId chat_id;
-      UserId bot_user_id;
-      string url;
-      get_args(args, chat_id, bot_user_id, url);
-      send_request(td_api::make_object<td_api::openWebApp>(chat_id, bot_user_id, url, message_thread_id_,
-                                                           get_input_message_reply_to(), as_web_app_open_parameters()));
-    } else if (op == "cwa") {
-      int64 launch_id;
-      get_args(args, launch_id);
-      send_request(td_api::make_object<td_api::closeWebApp>(launch_id));
-    } else if (op == "cwafd") {
-      UserId bot_user_id;
-      string file_name;
-      string url;
-      get_args(args, bot_user_id, file_name, url);
-      send_request(td_api::make_object<td_api::checkWebAppFileDownload>(bot_user_id, file_name, url));
-    } else if (op == "sca") {
-      ChatId chat_id;
-      string action;
-      get_args(args, chat_id, action);
-      send_request(td_api::make_object<td_api::sendChatAction>(chat_id, message_thread_id_, business_connection_id_,
-                                                               as_chat_action(action)));
-    } else if (op == "smt" || op == "smtp" || op == "smtf" || op == "smtpf") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      for (int i = 1; i <= 200; i++) {
-        string message = PSTRING() << (Random::fast(0, 3) == 0 && i > 90 ? "sleep " : "") << "#" << i;
-        if (i == 6 || (op.back() == 'f' && i % 2 == 0)) {
-          message = string(4097, 'a');
-        }
-        if (op[3] == 'p') {
-          send_message(chat_id, td_api::make_object<td_api::inputMessagePhoto>(
-                                    as_local_file("rgb.jpg"), get_input_thumbnail(), get_added_sticker_file_ids(), 0, 0,
-                                    as_caption(message), show_caption_above_media_, get_message_self_destruct_type(),
-                                    has_spoiler_));
-        } else {
-          send_message(chat_id, td_api::make_object<td_api::inputMessageText>(as_formatted_text(message),
-                                                                              get_link_preview_options(), true));
-        }
-      }
-    } else if (op == "ssm") {
-      ChatId chat_id;
-      string filter;
-      string offset;
-      SearchQuery query;
-      get_args(args, chat_id, filter, offset, query);
-      send_request(td_api::make_object<td_api::searchSecretMessages>(chat_id, query.query, offset, query.limit,
-                                                                     as_search_messages_filter(filter)));
-    } else if (op == "ssd") {
-      schedule_date_ = std::move(args);
-    } else if (op == "smei") {
-      message_effect_id_ = to_integer<int64>(args);
-    } else if (op == "smpmsc") {
-      paid_message_star_count_ = to_integer<int64>(args);
-    } else if (op == "sop") {
-      only_preview_ = as_bool(args);
-    } else if (op == "smti") {
-      get_args(args, message_thread_id_);
-    } else if (op == "sbci") {
-      business_connection_id_ = args;
-    } else if (op == "shs") {
-      has_spoiler_ = as_bool(args);
-    } else if (op == "smsdt") {
-      message_self_destruct_time_ = to_integer<int32>(args);
-    } else if (op == "gcams") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatAvailableMessageSenders>(chat_id));
-    } else if (op == "scmsr") {
-      ChatId chat_id;
-      string sender_id;
-      get_args(args, chat_id, sender_id);
-      send_request(td_api::make_object<td_api::setChatMessageSender>(chat_id, as_message_sender(sender_id)));
-    } else if (op == "smr") {
-      get_args(args, reply_message_id_, reply_chat_id_);
-    } else if (op == "smrq") {
-      reply_quote_ = args;
-    } else if (op == "smrqp") {
-      reply_quote_position_ = to_integer<int32>(args);
-    } else if (op == "smrs") {
-      get_args(args, reply_story_chat_id_, reply_story_id_);
-    } else if (op == "slpo") {
-      get_args(args, link_preview_is_disabled_, link_preview_url_, link_preview_force_small_media_,
-               link_preview_force_large_media_, link_preview_show_above_text_);
-    } else if (op == "sscam") {
-      get_args(args, show_caption_above_media_);
-    } else if (op == "ssmt") {
-      saved_messages_topic_id_ = as_chat_id(args);
-    } else if (op == "sqrs") {
-      quick_reply_shortcut_name_ = args;
-    } else if (op == "smas") {
-      added_sticker_file_ids_ = as_file_ids(args);
-    } else if (op == "smc") {
-      caption_ = args;
-    } else if (op == "smco") {
-      cover_ = args;
-    } else if (op == "smth") {
-      thumbnail_ = args;
-    } else if (op == "smst") {
-      start_timestamp_ = to_integer<int32>(args);
-    } else if (op == "sm" || op == "sms" || op == "smf") {
-      ChatId chat_id;
-      string message;
-      get_args(args, chat_id, message);
-      if (op == "smf") {
-        message = string(5097, 'a');
-      }
-      send_message(
-          chat_id,
-          td_api::make_object<td_api::inputMessageText>(as_formatted_text(message), get_link_preview_options(), true),
-          op == "sms", false);
-    } else if (op == "smce") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      vector<td_api::object_ptr<td_api::textEntity>> entities;
-      entities.push_back(td_api::make_object<td_api::textEntity>(
-          0, 2, td_api::make_object<td_api::textEntityTypeCustomEmoji>(5368324170671202286)));
-      entities.push_back(td_api::make_object<td_api::textEntity>(
-          3, 2, td_api::make_object<td_api::textEntityTypeCustomEmoji>(5377637695583426942)));
-      entities.push_back(td_api::make_object<td_api::textEntity>(
-          6, 5, td_api::make_object<td_api::textEntityTypeCustomEmoji>(5368324170671202286)));
-      auto text = as_formatted_text("👍 😉 🧑‍🚒", std::move(entities));
-      send_message(chat_id,
-                   td_api::make_object<td_api::inputMessageText>(std::move(text), get_link_preview_options(), true));
-    } else if (op == "alm") {
-      ChatId chat_id;
-      string sender_id;
-      string message;
-      get_args(args, chat_id, sender_id, message);
-      send_request(td_api::make_object<td_api::addLocalMessage>(
-          chat_id, as_message_sender(sender_id), get_input_message_reply_to(), false,
-          td_api::make_object<td_api::inputMessageText>(as_formatted_text(message), get_link_preview_options(), true)));
-    } else if (op == "spmp") {
-      ChatId chat_id;
-      get_args(args, chat_id, args);
-      auto paid_media = transform(full_split(args), [&](const string &photo) {
-        return td_api::make_object<td_api::inputPaidMedia>(td_api::make_object<td_api::inputPaidMediaTypePhoto>(),
-                                                           as_input_file(photo), get_input_thumbnail(),
-                                                           get_added_sticker_file_ids(), 0, 0);
-      });
-      send_message(chat_id, td_api::make_object<td_api::inputMessagePaidMedia>(11, std::move(paid_media), get_caption(),
-                                                                               rand_bool(), "photo"));
-    } else if (op == "spmv") {
-      ChatId chat_id;
-      get_args(args, chat_id, args);
-      auto paid_media = transform(full_split(args), [&](const string &video) {
-        return td_api::make_object<td_api::inputPaidMedia>(
-            td_api::make_object<td_api::inputPaidMediaTypeVideo>(get_input_cover(), start_timestamp_, 10, true),
-            as_input_file(video), get_input_thumbnail(), get_added_sticker_file_ids(), 0, 0);
-      });
-      send_message(chat_id, td_api::make_object<td_api::inputMessagePaidMedia>(12, std::move(paid_media), get_caption(),
-                                                                               rand_bool(), "video"));
-    } else if (op == "smap" || op == "smad" || op == "smav") {
-      ChatId chat_id;
-      get_args(args, chat_id, args);
-      auto input_message_contents = transform(full_split(args), [&](const string &file) {
-        td_api::object_ptr<td_api::InputMessageContent> content;
-        if (op == "smap") {
-          content = td_api::make_object<td_api::inputMessagePhoto>(
-              as_input_file(file), get_input_thumbnail(), get_added_sticker_file_ids(), 0, 0, get_caption(),
-              show_caption_above_media_, rand_bool() ? get_message_self_destruct_type() : nullptr,
-              has_spoiler_ && rand_bool());
-        } else if (op == "smad") {
-          content = td_api::make_object<td_api::inputMessageDocument>(as_input_file(file), get_input_thumbnail(), true,
-                                                                      get_caption());
-        } else if (op == "smav") {
-          content = td_api::make_object<td_api::inputMessageVideo>(
-              as_input_file(file), get_input_thumbnail(), get_input_cover(), start_timestamp_,
-              get_added_sticker_file_ids(), 1, 2, 3, true, get_caption(), show_caption_above_media_,
-              get_message_self_destruct_type(), has_spoiler_);
-        }
-        return content;
-      });
-      if (!business_connection_id_.empty()) {
-        send_request(td_api::make_object<td_api::sendBusinessMessageAlbum>(
-            business_connection_id_, chat_id, get_input_message_reply_to(), rand_bool(), rand_bool(),
-            message_effect_id_, std::move(input_message_contents)));
-      } else if (!quick_reply_shortcut_name_.empty()) {
-        send_request(td_api::make_object<td_api::addQuickReplyShortcutMessageAlbum>(
-            quick_reply_shortcut_name_, reply_message_id_, std::move(input_message_contents)));
-      } else {
-        send_request(td_api::make_object<td_api::sendMessageAlbum>(
-            chat_id, message_thread_id_, get_input_message_reply_to(), default_message_send_options(),
-            std::move(input_message_contents)));
-      }
-    } else if (op == "savt") {
-      int64 verification_id;
-      string token;
-      get_args(args, verification_id, token);
-      send_request(td_api::make_object<td_api::setApplicationVerificationToken>(verification_id, token));
-    } else if (op == "gmft") {
-      auto r_message_file_head = read_file_str(args, 2 << 10);
-      if (r_message_file_head.is_error()) {
-        LOG(ERROR) << r_message_file_head.error();
-      } else {
-        auto message_file_head = r_message_file_head.move_as_ok();
-        while (!check_utf8(message_file_head)) {
-          message_file_head.pop_back();
-        }
-        send_request(td_api::make_object<td_api::getMessageFileType>(message_file_head));
-      }
-    } else if (op == "gmict") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getMessageImportConfirmationText>(chat_id));
-    } else if (op == "im") {
-      ChatId chat_id;
-      string message_file;
-      vector<string> attached_files;
-      get_args(args, chat_id, message_file, args);
-      attached_files = full_split(args);
-      send_request(td_api::make_object<td_api::importMessages>(chat_id, as_input_file(message_file),
-                                                               transform(attached_files, as_input_file)));
-    } else if (op == "em") {
-      ChatId chat_id;
-      MessageId message_id;
-      string message;
-      get_args(args, chat_id, message_id, message);
-      auto input_text =
-          td_api::make_object<td_api::inputMessageText>(as_formatted_text(message), get_link_preview_options(), true);
-      if (!business_connection_id_.empty()) {
-        send_request(td_api::make_object<td_api::editBusinessMessageText>(business_connection_id_, chat_id, message_id,
-                                                                          nullptr, std::move(input_text)));
-      } else {
-        send_request(td_api::make_object<td_api::editMessageText>(chat_id, message_id, nullptr, std::move(input_text)));
-      }
-    } else if (op == "eqrm") {
-      ShortcutId shortcut_id;
-      MessageId message_id;
-      string message;
-      get_args(args, shortcut_id, message_id, message);
-      send_request(td_api::make_object<td_api::editQuickReplyMessage>(
-          shortcut_id, message_id,
-          td_api::make_object<td_api::inputMessageText>(as_formatted_text(message), get_link_preview_options(), true)));
-    } else if (op == "eman") {
-      ChatId chat_id;
-      MessageId message_id;
-      string animation;
-      get_args(args, chat_id, message_id, animation);
-      send_request(td_api::make_object<td_api::editMessageMedia>(
-          chat_id, message_id, nullptr,
-          td_api::make_object<td_api::inputMessageAnimation>(as_input_file(animation), get_input_thumbnail(),
-                                                             get_added_sticker_file_ids(), 0, 0, 0, get_caption(),
-                                                             show_caption_above_media_, has_spoiler_)));
-    } else if (op == "emc") {
-      ChatId chat_id;
-      MessageId message_id;
-      string caption;
-      get_args(args, chat_id, message_id, caption);
-      send_request(td_api::make_object<td_api::editMessageCaption>(
-          chat_id, message_id, nullptr, as_caption(caption.empty() ? caption_ : caption), show_caption_above_media_));
-    } else if (op == "emd") {
-      ChatId chat_id;
-      MessageId message_id;
-      string document;
-      get_args(args, chat_id, message_id, document);
-      auto input_document = td_api::make_object<td_api::inputMessageDocument>(
-          as_input_file(document), get_input_thumbnail(), false, get_caption());
-      if (!business_connection_id_.empty()) {
-        send_request(td_api::make_object<td_api::editBusinessMessageMedia>(business_connection_id_, chat_id, message_id,
-                                                                           nullptr, std::move(input_document)));
-      } else {
-        send_request(
-            td_api::make_object<td_api::editMessageMedia>(chat_id, message_id, nullptr, std::move(input_document)));
-      }
-    } else if (op == "eqrmd") {
-      ShortcutId shortcut_id;
-      MessageId message_id;
-      string document;
-      get_args(args, shortcut_id, message_id, document);
-      send_request(td_api::make_object<td_api::editQuickReplyMessage>(
-          shortcut_id, message_id,
-          td_api::make_object<td_api::inputMessageDocument>(as_input_file(document), get_input_thumbnail(), false,
-                                                            get_caption())));
-    } else if (op == "emp") {
-      ChatId chat_id;
-      MessageId message_id;
-      string photo;
-      get_args(args, chat_id, message_id, photo);
-      auto input_photo = td_api::make_object<td_api::inputMessagePhoto>(
-          as_input_file(photo), get_input_thumbnail(), get_added_sticker_file_ids(), 0, 0, get_caption(),
-          show_caption_above_media_, get_message_self_destruct_type(), has_spoiler_);
-      if (!business_connection_id_.empty()) {
-        send_request(td_api::make_object<td_api::editBusinessMessageMedia>(business_connection_id_, chat_id, message_id,
-                                                                           nullptr, std::move(input_photo)));
-      } else {
-        send_request(
-            td_api::make_object<td_api::editMessageMedia>(chat_id, message_id, nullptr, std::move(input_photo)));
-      }
-    } else if (op == "eqrmp") {
-      ShortcutId shortcut_id;
-      MessageId message_id;
-      string photo;
-      get_args(args, shortcut_id, message_id, photo);
-      send_request(td_api::make_object<td_api::editQuickReplyMessage>(
-          shortcut_id, message_id,
-          td_api::make_object<td_api::inputMessagePhoto>(as_input_file(photo), get_input_thumbnail(),
-                                                         get_added_sticker_file_ids(), 0, 0, get_caption(),
-                                                         show_caption_above_media_, nullptr, has_spoiler_)));
-    } else if (op == "eqrmv") {
-      ShortcutId shortcut_id;
-      MessageId message_id;
-      string video;
-      get_args(args, shortcut_id, message_id, video);
-      send_request(td_api::make_object<td_api::editQuickReplyMessage>(
-          shortcut_id, message_id,
-          td_api::make_object<td_api::inputMessageVideo>(as_input_file(video), get_input_thumbnail(), get_input_cover(),
-                                                         start_timestamp_, get_added_sticker_file_ids(), 1, 2, 3, true,
-                                                         get_caption(), show_caption_above_media_,
-                                                         get_message_self_destruct_type(), has_spoiler_)));
-    } else if (op == "emv") {
-      ChatId chat_id;
-      MessageId message_id;
-      string video;
-      get_args(args, chat_id, message_id, video);
-      auto input_video = td_api::make_object<td_api::inputMessageVideo>(
-          as_input_file(video), get_input_thumbnail(), get_input_cover(), start_timestamp_,
-          get_added_sticker_file_ids(), 1, 2, 3, true, get_caption(), show_caption_above_media_,
-          get_message_self_destruct_type(), has_spoiler_);
-      if (!business_connection_id_.empty()) {
-        send_request(td_api::make_object<td_api::editBusinessMessageMedia>(business_connection_id_, chat_id, message_id,
-                                                                           nullptr, std::move(input_video)));
-      } else {
-        send_request(
-            td_api::make_object<td_api::editMessageMedia>(chat_id, message_id, nullptr, std::move(input_video)));
-      }
-    } else if (op == "emll") {
-      ChatId chat_id;
-      MessageId message_id;
-      string latitude;
-      string longitude;
-      int32 live_period;
-      string accuracy;
-      int32 heading;
-      int32 proximity_alert_radius;
-      get_args(args, chat_id, message_id, latitude, longitude, live_period, accuracy, heading, proximity_alert_radius);
-      send_request(td_api::make_object<td_api::editMessageLiveLocation>(chat_id, message_id, nullptr,
-                                                                        as_location(latitude, longitude, accuracy),
-                                                                        live_period, heading, proximity_alert_radius));
-    } else if (op == "emss") {
-      ChatId chat_id;
-      MessageId message_id;
-      string date;
-      get_args(args, chat_id, message_id, date);
-      send_request(td_api::make_object<td_api::editMessageSchedulingState>(chat_id, message_id,
-                                                                           as_message_scheduling_state(date)));
-    } else if (op == "smfc") {
-      ChatId chat_id;
-      MessageId message_id;
-      string message;
-      get_args(args, chat_id, message_id, message);
-      send_request(td_api::make_object<td_api::setMessageFactCheck>(chat_id, message_id, as_formatted_text(message)));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "cqrsn") {
-      execute(td_api::make_object<td_api::checkQuickReplyShortcutName>(args));
-    } else if (op == "lqrs") {
-      send_request(td_api::make_object<td_api::loadQuickReplyShortcuts>());
-    } else if (op == "dqrs") {
-      ShortcutId shortcut_id;
-      get_args(args, shortcut_id);
-      send_request(td_api::make_object<td_api::deleteQuickReplyShortcut>(shortcut_id));
-    } else if (op == "sqrsn") {
-      ShortcutId shortcut_id;
-      string name;
-      get_args(args, shortcut_id, name);
-      send_request(td_api::make_object<td_api::setQuickReplyShortcutName>(shortcut_id, name));
-    } else if (op == "rqrs") {
-      string shortcut_ids;
-      get_args(args, shortcut_ids);
-      send_request(td_api::make_object<td_api::reorderQuickReplyShortcuts>(as_shortcut_ids(shortcut_ids)));
-    } else if (op == "lqrsm") {
-      ShortcutId shortcut_id;
-      get_args(args, shortcut_id);
-      send_request(td_api::make_object<td_api::loadQuickReplyShortcutMessages>(shortcut_id));
-    } else if (op == "dqrsm") {
-      ShortcutId shortcut_id;
-      string message_ids;
-      get_args(args, shortcut_id, message_ids);
-      send_request(
-          td_api::make_object<td_api::deleteQuickReplyShortcutMessages>(shortcut_id, as_message_ids(message_ids)));
-    } else if (op == "gftdi") {
-      send_request(td_api::make_object<td_api::getForumTopicDefaultIcons>());
-    } else if (op == "cft") {
-      ChatId chat_id;
-      string name;
-      int32 icon_color;
-      get_args(args, chat_id, name, icon_color);
-      send_request(td_api::make_object<td_api::createForumTopic>(
-          chat_id, name, td_api::make_object<td_api::forumTopicIcon>(icon_color, 0)));
-    } else if (op == "eft") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      string name;
-      bool edit_icon_custom_emoji;
-      CustomEmojiId icon_custom_emoji_id;
-      get_args(args, chat_id, message_thread_id, name, edit_icon_custom_emoji, icon_custom_emoji_id);
-      send_request(td_api::make_object<td_api::editForumTopic>(chat_id, message_thread_id, name, edit_icon_custom_emoji,
-                                                               icon_custom_emoji_id));
-    } else if (op == "gft") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      get_args(args, chat_id, message_thread_id);
-      send_request(td_api::make_object<td_api::getForumTopic>(chat_id, message_thread_id));
-    } else if (op == "gftl") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      get_args(args, chat_id, message_thread_id);
-      send_request(td_api::make_object<td_api::getForumTopicLink>(chat_id, message_thread_id));
-    } else if (op == "gfts") {
-      ChatId chat_id;
-      string query;
-      int32 offset_date;
-      MessageId offset_message_id;
-      MessageThreadId offset_message_thread_id;
-      string limit;
-      get_args(args, chat_id, query, offset_date, offset_message_id, offset_message_thread_id, limit);
-      send_request(td_api::make_object<td_api::getForumTopics>(chat_id, query, offset_date, offset_message_id,
-                                                               offset_message_thread_id, as_limit(limit)));
-    } else if (op == "tftic") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      bool is_closed;
-      get_args(args, chat_id, message_thread_id, is_closed);
-      send_request(td_api::make_object<td_api::toggleForumTopicIsClosed>(chat_id, message_thread_id, is_closed));
-    } else if (op == "tgftih") {
-      ChatId chat_id;
-      bool is_hidden;
-      get_args(args, chat_id, is_hidden);
-      send_request(td_api::make_object<td_api::toggleGeneralForumTopicIsHidden>(chat_id, is_hidden));
-    } else if (op == "tftip") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      bool is_pinned;
-      get_args(args, chat_id, message_thread_id, is_pinned);
-      send_request(td_api::make_object<td_api::toggleForumTopicIsPinned>(chat_id, message_thread_id, is_pinned));
-    } else if (op == "spft") {
-      ChatId chat_id;
-      string message_thread_ids;
-      get_args(args, chat_id, message_thread_ids);
-      send_request(
-          td_api::make_object<td_api::setPinnedForumTopics>(chat_id, as_message_thread_ids(message_thread_ids)));
-    } else if (op == "dft") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      get_args(args, chat_id, message_thread_id);
-      send_request(td_api::make_object<td_api::deleteForumTopic>(chat_id, message_thread_id));
-    } else if (op == "sbsm") {
-      UserId bot_user_id;
-      ChatId chat_id;
-      string parameter;
-      get_args(args, bot_user_id, chat_id, parameter);
-      send_request(td_api::make_object<td_api::sendBotStartMessage>(bot_user_id, chat_id, parameter));
-    } else if (op == "giqr") {
-      string bot_id;
-      string query;
-      get_args(args, bot_id, query);
-      send_request(td_api::make_object<td_api::getInlineQueryResults>(as_user_id(bot_id), as_chat_id(bot_id), nullptr,
-                                                                      query, ""));
-    } else if (op == "giqro") {
-      UserId bot_user_id;
-      string offset;
-      string query;
-      get_args(args, bot_user_id, offset, query);
-      send_request(td_api::make_object<td_api::getInlineQueryResults>(bot_user_id, 0, nullptr, query, offset));
-    } else if (op == "giqrl") {
-      UserId bot_user_id;
-      string query;
-      get_args(args, bot_user_id, query);
-      send_request(
-          td_api::make_object<td_api::getInlineQueryResults>(bot_user_id, 0, as_location("1.1", "2.2", ""), query, ""));
-    } else if (op == "gpim") {
-      UserId bot_user_id;
-      string prepared_message_id;
-      get_args(args, bot_user_id, prepared_message_id);
-      send_request(td_api::make_object<td_api::getPreparedInlineMessage>(bot_user_id, prepared_message_id));
-    } else if (op == "siqr" || op == "siqrh") {
-      ChatId chat_id;
-      int64 query_id;
-      string result_id;
-      get_args(args, chat_id, query_id, result_id);
-      if (quick_reply_shortcut_name_.empty()) {
-        send_request(td_api::make_object<td_api::sendInlineQueryResultMessage>(
-            chat_id, message_thread_id_, nullptr, default_message_send_options(), query_id, result_id, op == "siqrh"));
-      } else {
-        send_request(td_api::make_object<td_api::addQuickReplyShortcutInlineQueryResultMessage>(
-            quick_reply_shortcut_name_, reply_message_id_, query_id, result_id, op == "siqrh"));
-      }
-    } else if (op == "gcqa") {
-      ChatId chat_id;
-      MessageId message_id;
-      string data;
-      get_args(args, chat_id, message_id, data);
-      send_request(td_api::make_object<td_api::getCallbackQueryAnswer>(
-          chat_id, message_id, td_api::make_object<td_api::callbackQueryPayloadData>(data)));
-    } else if (op == "gcpqa") {
-      ChatId chat_id;
-      MessageId message_id;
-      string password;
-      string data;
-      get_args(args, chat_id, message_id, password, data);
-      send_request(td_api::make_object<td_api::getCallbackQueryAnswer>(
-          chat_id, message_id, td_api::make_object<td_api::callbackQueryPayloadDataWithPassword>(password, data)));
-    } else if (op == "gcgqa") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::getCallbackQueryAnswer>(
-          chat_id, message_id, td_api::make_object<td_api::callbackQueryPayloadGame>("")));
-    } else if (op == "acq" || op == "acqa") {
-      int64 callback_query_id;
-      string text;
-      get_args(args, callback_query_id, text);
-      send_request(
-          td_api::make_object<td_api::answerCallbackQuery>(callback_query_id, text, op == "acqa", string(), 0));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "san") {
-      ChatId chat_id;
-      string animation;
-      int32 width;
-      int32 height;
-      get_args(args, chat_id, animation, width, height);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageAnimation>(
-                                as_input_file(animation), get_input_thumbnail(), get_added_sticker_file_ids(), 60,
-                                width, height, get_caption(), show_caption_above_media_, has_spoiler_));
-    } else if (op == "sanurl") {
-      ChatId chat_id;
-      string url;
-      get_args(args, chat_id, url);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageAnimation>(
-                                as_generated_file(url, "#url#"), get_input_thumbnail(), get_added_sticker_file_ids(), 0,
-                                0, 0, get_caption(), show_caption_above_media_, has_spoiler_));
-    } else if (op == "sau") {
-      ChatId chat_id;
-      string audio;
-      int32 duration;
-      string title;
-      string performer;
-      get_args(args, chat_id, audio, duration, title, performer);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageAudio>(as_input_file(audio), get_input_thumbnail(),
-                                                                           duration, title, performer, get_caption()));
-    } else if (op == "svoice") {
-      ChatId chat_id;
-      string voice;
-      get_args(args, chat_id, voice);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageVoiceNote>(
-                                as_input_file(voice), 0, "abacaba", get_caption(), get_message_self_destruct_type()));
-    } else if (op == "scontact") {
-      ChatId chat_id;
-      string phone_number;
-      string first_name;
-      string last_name;
-      UserId user_id;
-      get_args(args, chat_id, phone_number, first_name, last_name, user_id);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageContact>(td_api::make_object<td_api::contact>(
-                                phone_number, first_name, last_name, string(), user_id)));
-    } else if (op == "sf" || op == "scopy") {
-      ChatId chat_id;
-      ChatId from_chat_id;
-      MessageId from_message_id;
-      bool replace_video_start_timestamp;
-      get_args(args, chat_id, from_chat_id, from_message_id, replace_video_start_timestamp);
-      td_api::object_ptr<td_api::messageCopyOptions> copy_options;
-      if (op == "scopy") {
-        copy_options = td_api::make_object<td_api::messageCopyOptions>(true, rand_bool(), get_caption(),
-                                                                       show_caption_above_media_);
-      }
-      send_message(chat_id, td_api::make_object<td_api::inputMessageForwarded>(
-                                from_chat_id, from_message_id, true, replace_video_start_timestamp, start_timestamp_,
-                                std::move(copy_options)));
-    } else if (op == "sdice" || op == "sdicecd") {
-      ChatId chat_id;
-      string emoji;
-      get_args(args, chat_id, emoji);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageDice>(emoji, op == "sdicecd"));
-    } else if (op == "sd" || op == "sdf") {
-      ChatId chat_id;
-      string document;
-      get_args(args, chat_id, document);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageDocument>(
-                                as_input_file(document), get_input_thumbnail(), op == "sdf", get_caption()));
-    } else if (op == "sdgu") {
-      ChatId chat_id;
-      string document_path;
-      string document_conversion;
-      get_args(args, chat_id, document_path, document_conversion);
-      send_request(td_api::make_object<td_api::preliminaryUploadFile>(
-          as_generated_file(document_path, document_conversion), nullptr, 1));
-      send_message(chat_id, td_api::make_object<td_api::inputMessageDocument>(
-                                as_generated_file(document_path, document_conversion), nullptr, false, get_caption()));
-    } else if (op == "sg") {
-      ChatId chat_id;
-      UserId bot_user_id;
-      string game_short_name;
-      get_args(args, chat_id, bot_user_id, game_short_name);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageGame>(bot_user_id, game_short_name));
-    } else if (op == "sl") {
-      ChatId chat_id;
-      string latitude;
-      string longitude;
-      string accuracy;
-      get_args(args, chat_id, latitude, longitude, accuracy);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageLocation>(
-                                as_location(latitude, longitude, accuracy), 0, 0, 0));
-    } else if (op == "sll") {
-      ChatId chat_id;
-      int32 period;
-      string latitude;
-      string longitude;
-      string accuracy;
-      int32 heading;
-      int32 proximity_alert_radius;
-      get_args(args, chat_id, period, latitude, longitude, accuracy, heading, proximity_alert_radius);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageLocation>(
-                                as_location(latitude, longitude, accuracy), period, heading, proximity_alert_radius));
-    } else if (op == "spoll" || op == "spollm" || op == "spollp" || op == "squiz") {
-      ChatId chat_id;
-      string question;
-      get_args(args, chat_id, question, args);
-      auto options = transform(autosplit_str(args), [](const string &option) { return as_formatted_text(option); });
-      td_api::object_ptr<td_api::PollType> poll_type;
-      if (op == "squiz") {
-        poll_type = td_api::make_object<td_api::pollTypeQuiz>(narrow_cast<int32>(options.size() - 1),
-                                                              as_formatted_text("_te*st*_"));
-      } else {
-        poll_type = td_api::make_object<td_api::pollTypeRegular>(op == "spollm");
-      }
-      send_message(chat_id,
-                   td_api::make_object<td_api::inputMessagePoll>(as_formatted_text(question), std::move(options),
-                                                                 op != "spollp", std::move(poll_type), 0, 0, false));
-    } else if (op == "sp") {
-      ChatId chat_id;
-      string photo;
-      get_args(args, chat_id, photo);
-      send_message(chat_id,
-                   td_api::make_object<td_api::inputMessagePhoto>(
-                       as_input_file(photo), get_input_thumbnail(), get_added_sticker_file_ids(), 0, 0, get_caption(),
-                       show_caption_above_media_, get_message_self_destruct_type(), has_spoiler_));
-    } else if (op == "ss") {
-      ChatId chat_id;
-      string sticker;
-      string emoji;
-      get_args(args, chat_id, sticker, emoji);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageSticker>(as_input_file(sticker),
-                                                                             get_input_thumbnail(), 0, 0, emoji));
-    } else if (op == "sstory") {
-      ChatId chat_id;
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      get_args(args, chat_id, story_sender_chat_id, story_id);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageStory>(story_sender_chat_id, story_id));
-    } else if (op == "sv") {
-      ChatId chat_id;
-      string video;
-      get_args(args, chat_id, video);
-      send_message(chat_id, td_api::make_object<td_api::inputMessageVideo>(
-                                as_input_file(video), get_input_thumbnail(), get_input_cover(), start_timestamp_,
-                                get_added_sticker_file_ids(), 1, 2, 3, true, get_caption(), show_caption_above_media_,
-                                get_message_self_destruct_type(), has_spoiler_));
-    } else if (op == "svn") {
-      ChatId chat_id;
-      string video_note;
-      get_args(args, chat_id, video_note);
-      send_message(chat_id,
-                   td_api::make_object<td_api::inputMessageVideoNote>(as_input_file(video_note), get_input_thumbnail(),
-                                                                      10, 5, get_message_self_destruct_type()));
-    } else if (op == "svenue") {
-      ChatId chat_id;
-      string latitude;
-      string longitude;
-      string accuracy;
-      string title;
-      string address;
-      string provider;
-      string venue_id;
-      string venue_type;
-      get_args(args, chat_id, latitude, longitude, accuracy, title, address, provider, venue_id, venue_type);
-      send_message(chat_id,
-                   td_api::make_object<td_api::inputMessageVenue>(td_api::make_object<td_api::venue>(
-                       as_location(latitude, longitude, accuracy), title, address, provider, venue_id, venue_type)));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "test") {
-      send_request(td_api::make_object<td_api::testNetwork>());
-    } else if (op == "alarm") {
-      send_request(td_api::make_object<td_api::setAlarm>(to_double(args)));
-    } else if (op == "delete") {
-      ChatId chat_id;
-      bool remove_from_the_chat_list;
-      bool revoke;
-      get_args(args, chat_id, remove_from_the_chat_list, revoke);
-      send_request(td_api::make_object<td_api::deleteChatHistory>(chat_id, remove_from_the_chat_list, revoke));
-    } else if (op == "dcmbd") {
-      ChatId chat_id;
-      int32 min_date;
-      int32 max_date;
-      bool revoke;
-      get_args(args, chat_id, min_date, max_date, revoke);
-      send_request(td_api::make_object<td_api::deleteChatMessagesByDate>(chat_id, min_date, max_date, revoke));
-    } else if (op == "dcmbs") {
-      ChatId chat_id;
-      string sender_id;
-      get_args(args, chat_id, sender_id);
-      send_request(td_api::make_object<td_api::deleteChatMessagesBySender>(chat_id, as_message_sender(sender_id)));
-    } else if (op == "cnbgc") {
-      string user_ids_string;
-      string title;
-      int32 message_auto_delete_time;
-      get_args(args, user_ids_string, title, message_auto_delete_time);
-      send_request(td_api::make_object<td_api::createNewBasicGroupChat>(as_user_ids(user_ids_string), title,
-                                                                        message_auto_delete_time));
-    } else if (op == "cnchc" || op == "cnchcadt") {
-      send_request(td_api::make_object<td_api::createNewSupergroupChat>(args, false, true, "Description", nullptr,
-                                                                        op == "cnchcadt" ? 86400 : 0, false));
-    } else if (op == "cnsgc" || op == "cnsgcadt") {
-      send_request(td_api::make_object<td_api::createNewSupergroupChat>(args, false, false, "Description", nullptr,
-                                                                        op == "cnsgcadt" ? 86400 : 0, false));
-    } else if (op == "cnfc" || op == "cnfcadt") {
-      send_request(td_api::make_object<td_api::createNewSupergroupChat>(args, true, true, "Description", nullptr,
-                                                                        op == "cnfcadt" ? 86400 : 0, false));
-    } else if (op == "cnsgcloc") {
-      send_request(td_api::make_object<td_api::createNewSupergroupChat>(
-          args, false, false, "Description",
-          td_api::make_object<td_api::chatLocation>(as_location("40.0", "60.0", ""), "address"), 0, false));
-    } else if (op == "cnsgcimport") {
-      send_request(
-          td_api::make_object<td_api::createNewSupergroupChat>(args, false, false, "Description", nullptr, 0, true));
-    } else if (op == "ubgctsc") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::upgradeBasicGroupChatToSupergroupChat>(chat_id));
-    } else if (op == "DeleteChat") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::deleteChat>(chat_id));
-    } else if (op == "grc") {
-      send_request(td_api::make_object<td_api::getRecommendedChats>());
-    } else if (op == "gcsc") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatSimilarChats>(chat_id));
-    } else if (op == "gcscc") {
-      ChatId chat_id;
-      bool return_local;
-      get_args(args, chat_id, return_local);
-      send_request(td_api::make_object<td_api::getChatSimilarChatCount>(chat_id, return_local));
-    } else if (op == "ocsc") {
-      ChatId chat_id;
-      ChatId similar_chat_id;
-      get_args(args, chat_id, similar_chat_id);
-      send_request(td_api::make_object<td_api::openChatSimilarChat>(chat_id, similar_chat_id));
-    } else if (op == "gbsb") {
-      UserId bot_user_id;
-      get_args(args, bot_user_id);
-      send_request(td_api::make_object<td_api::getBotSimilarBots>(bot_user_id));
-    } else if (op == "gbsbc") {
-      UserId bot_user_id;
-      bool return_local;
-      get_args(args, bot_user_id, return_local);
-      send_request(td_api::make_object<td_api::getBotSimilarBotCount>(bot_user_id, return_local));
-    } else if (op == "obsb") {
-      UserId bot_user_id;
-      UserId similar_bot_user_id;
-      get_args(args, bot_user_id, similar_bot_user_id);
-      send_request(td_api::make_object<td_api::openBotSimilarBot>(bot_user_id, similar_bot_user_id));
-    } else if (op == "gcpc") {
-      send_request(td_api::make_object<td_api::getCreatedPublicChats>());
-    } else if (op == "gcpcl") {
-      send_request(td_api::make_object<td_api::getCreatedPublicChats>(
-          td_api::make_object<td_api::publicChatTypeIsLocationBased>()));
-    } else if (op == "ccpcl") {
-      send_request(td_api::make_object<td_api::checkCreatedPublicChatsLimit>());
-    } else if (op == "ccpcll") {
-      send_request(td_api::make_object<td_api::checkCreatedPublicChatsLimit>(
-          td_api::make_object<td_api::publicChatTypeIsLocationBased>()));
-    } else if (op == "gsdc") {
-      send_request(td_api::make_object<td_api::getSuitableDiscussionChats>());
-    } else if (op == "gisc") {
-      send_request(td_api::make_object<td_api::getInactiveSupergroupChats>());
-    } else if (op == "gspc") {
-      send_request(td_api::make_object<td_api::getSuitablePersonalChats>());
-    } else if (op == "cpc") {
-      UserId user_id;
-      bool force;
-      get_args(args, user_id, force);
-      send_request(td_api::make_object<td_api::createPrivateChat>(user_id, force));
-    } else if (op == "cbgc") {
-      string basic_group_id;
-      bool force;
-      get_args(args, basic_group_id, force);
-      send_request(td_api::make_object<td_api::createBasicGroupChat>(as_basic_group_id(basic_group_id), force));
-    } else if (op == "csgc" || op == "cchc") {
-      string supergroup_id;
-      bool force;
-      get_args(args, supergroup_id, force);
-      send_request(td_api::make_object<td_api::createSupergroupChat>(as_supergroup_id(supergroup_id), force));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "gcltac") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::getChatListsToAddChat>(chat_id));
-    } else if (op == "actl" || op == "actla" || begins_with(op, "actl-")) {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::addChatToList>(chat_id, as_chat_list(op)));
-    } else if (op == "gcf") {
-      ChatFolderId chat_folder_id;
-      get_args(args, chat_folder_id);
-      send_request(td_api::make_object<td_api::getChatFolder>(chat_folder_id));
-    } else if (op == "ccf") {
-      send_request(td_api::make_object<td_api::createChatFolder>(as_chat_folder(args)));
-    } else if (op == "ccfe") {
-      auto chat_folder = td_api::make_object<td_api::chatFolder>();
-      chat_folder->name_ = td_api::make_object<td_api::chatFolderName>(
-          td_api::make_object<td_api::formattedText>("empty", Auto()), true);
-      chat_folder->included_chat_ids_ = as_chat_ids(args);
-      send_request(td_api::make_object<td_api::createChatFolder>(std::move(chat_folder)));
-    } else if (op == "ecf" || op == "ecfs") {
-      ChatFolderId chat_folder_id;
-      string filter;
-      get_args(args, chat_folder_id, filter);
-      send_request(td_api::make_object<td_api::editChatFolder>(chat_folder_id, as_chat_folder(filter, op == "ecfs")));
-    } else if (op == "dcf") {
-      ChatFolderId chat_folder_id;
-      string chat_ids;
-      get_args(args, chat_folder_id, chat_ids);
-      send_request(td_api::make_object<td_api::deleteChatFolder>(chat_folder_id, as_chat_ids(chat_ids)));
-    } else if (op == "gcfctl") {
-      ChatFolderId chat_folder_id;
-      get_args(args, chat_folder_id);
-      send_request(td_api::make_object<td_api::getChatFolderChatsToLeave>(chat_folder_id));
-    } else if (op == "gcfcc") {
-      send_request(td_api::make_object<td_api::getChatFolderChatCount>(as_chat_folder(args)));
-    } else if (op == "rcf") {
-      int32 main_chat_list_position;
-      string chat_folder_ids;
-      get_args(args, main_chat_list_position, chat_folder_ids);
-      send_request(td_api::make_object<td_api::reorderChatFolders>(as_chat_folder_ids(chat_folder_ids),
-                                                                   main_chat_list_position));
-    } else if (op == "tcft") {
-      bool are_tags_enabled;
-      get_args(args, are_tags_enabled);
-      send_request(td_api::make_object<td_api::toggleChatFolderTags>(are_tags_enabled));
-    } else if (op == "gcfcfil") {
-      ChatFolderId chat_folder_id;
-      get_args(args, chat_folder_id);
-      send_request(td_api::make_object<td_api::getChatsForChatFolderInviteLink>(chat_folder_id));
-    } else if (op == "crcfil") {
-      ChatFolderId chat_folder_id;
-      string name;
-      string chat_ids;
-      get_args(args, chat_folder_id, name, chat_ids);
-      send_request(
-          td_api::make_object<td_api::createChatFolderInviteLink>(chat_folder_id, name, as_chat_ids(chat_ids)));
-    } else if (op == "gcfil") {
-      ChatFolderId chat_folder_id;
-      get_args(args, chat_folder_id);
-      send_request(td_api::make_object<td_api::getChatFolderInviteLinks>(chat_folder_id));
-    } else if (op == "ecfil") {
-      ChatFolderId chat_folder_id;
-      string invite_link;
-      string name;
-      string chat_ids;
-      get_args(args, chat_folder_id, invite_link, name, chat_ids);
-      send_request(td_api::make_object<td_api::editChatFolderInviteLink>(chat_folder_id, invite_link, name,
-                                                                         as_chat_ids(chat_ids)));
-    } else if (op == "dcfil") {
-      ChatFolderId chat_folder_id;
-      string invite_link;
-      get_args(args, chat_folder_id, invite_link);
-      send_request(td_api::make_object<td_api::deleteChatFolderInviteLink>(chat_folder_id, invite_link));
-    } else if (op == "ccfil") {
-      send_request(td_api::make_object<td_api::checkChatFolderInviteLink>(args));
-    } else if (op == "acfbil") {
-      string invite_link;
-      string chat_ids;
-      get_args(args, invite_link, chat_ids);
-      send_request(td_api::make_object<td_api::addChatFolderByInviteLink>(invite_link, as_chat_ids(chat_ids)));
-    } else if (op == "gcfnc") {
-      ChatFolderId chat_folder_id;
-      get_args(args, chat_folder_id);
-      send_request(td_api::make_object<td_api::getChatFolderNewChats>(chat_folder_id));
-    } else if (op == "pcfnc") {
-      ChatFolderId chat_folder_id;
-      string chat_ids;
-      get_args(args, chat_folder_id, chat_ids);
-      send_request(td_api::make_object<td_api::processChatFolderNewChats>(chat_folder_id, as_chat_ids(chat_ids)));
-    } else if (op == "grcf") {
-      send_request(td_api::make_object<td_api::getRecommendedChatFolders>());
-    } else if (op == "gcfdin") {
-      execute(td_api::make_object<td_api::getChatFolderDefaultIconName>(as_chat_folder(args)));
-    } else if (op == "gacls") {
-      send_request(td_api::make_object<td_api::getArchiveChatListSettings>());
-    } else if (op == "sacls") {
-      bool archive_and_mute_new_chats_from_unknown_users;
-      bool keep_unmuted_chats_archived;
-      bool keep_chats_from_folders_archived;
-      get_args(args, archive_and_mute_new_chats_from_unknown_users, keep_unmuted_chats_archived,
-               keep_chats_from_folders_archived);
-      auto settings = td_api::make_object<td_api::archiveChatListSettings>(
-          archive_and_mute_new_chats_from_unknown_users, keep_unmuted_chats_archived, keep_chats_from_folders_archived);
-      send_request(td_api::make_object<td_api::setArchiveChatListSettings>(std::move(settings)));
-    } else if (op == "grdps") {
-      send_request(td_api::make_object<td_api::getReadDatePrivacySettings>());
-    } else if (op == "srdps") {
-      bool show_read_date;
-      get_args(args, show_read_date);
-      auto settings = td_api::make_object<td_api::readDatePrivacySettings>(show_read_date);
-      send_request(td_api::make_object<td_api::setReadDatePrivacySettings>(std::move(settings)));
-    } else if (op == "gncps") {
-      send_request(td_api::make_object<td_api::getNewChatPrivacySettings>());
-    } else if (op == "sncps") {
-      bool allow_new_chats_from_unknown_users;
-      int64 paid_message_star_count;
-      get_args(args, allow_new_chats_from_unknown_users, paid_message_star_count);
-      auto settings = td_api::make_object<td_api::newChatPrivacySettings>(allow_new_chats_from_unknown_users,
-                                                                          paid_message_star_count);
-      send_request(td_api::make_object<td_api::setNewChatPrivacySettings>(std::move(settings)));
-    } else if (op == "gpmr") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::getPaidMessageRevenue>(user_id));
-    } else if (op == "aumfu") {
-      UserId user_id;
-      bool refund_payments;
-      get_args(args, user_id, refund_payments);
-      send_request(td_api::make_object<td_api::allowUnpaidMessagesFromUser>(user_id, refund_payments));
-    } else if (op == "scpmsc") {
-      ChatId chat_id;
-      int64 paid_message_star_count;
-      get_args(args, chat_id, paid_message_star_count);
-      send_request(td_api::make_object<td_api::setChatPaidMessageStarCount>(chat_id, paid_message_star_count));
-    } else if (op == "csmtu" || op == "csmtul") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::canSendMessageToUser>(user_id, op == "csmtul"));
-    } else if (op == "sct") {
-      ChatId chat_id;
-      string title;
-      get_args(args, chat_id, title);
-      send_request(td_api::make_object<td_api::setChatTitle>(chat_id, title));
-    } else if (op == "scp") {
-      ChatId chat_id;
-      InputChatPhoto input_chat_photo;
-      get_args(args, chat_id, input_chat_photo);
-      send_request(td_api::make_object<td_api::setChatPhoto>(chat_id, input_chat_photo));
-    } else if (op == "scac") {
-      ChatId chat_id;
-      int32 accent_color_id;
-      CustomEmojiId background_custom_emoji_id;
-      get_args(args, chat_id, accent_color_id, background_custom_emoji_id);
-      send_request(
-          td_api::make_object<td_api::setChatAccentColor>(chat_id, accent_color_id, background_custom_emoji_id));
-    } else if (op == "scpac") {
-      ChatId chat_id;
-      int32 profile_accent_color_id;
-      CustomEmojiId profile_background_custom_emoji_id;
-      get_args(args, chat_id, profile_accent_color_id, profile_background_custom_emoji_id);
-      send_request(td_api::make_object<td_api::setChatProfileAccentColor>(chat_id, profile_accent_color_id,
-                                                                          profile_background_custom_emoji_id));
-    } else if (op == "scmt") {
-      ChatId chat_id;
-      int32 auto_delete_time;
-      get_args(args, chat_id, auto_delete_time);
-      send_request(td_api::make_object<td_api::setChatMessageAutoDeleteTime>(chat_id, auto_delete_time));
-    } else if (op == "sces") {
-      ChatId chat_id;
-      CustomEmojiId custom_emoji_id;
-      int32 expiration_date;
-      get_args(args, chat_id, custom_emoji_id, expiration_date);
-      send_request(td_api::make_object<td_api::setChatEmojiStatus>(
-          chat_id, td_api::make_object<td_api::emojiStatus>(
-                       td_api::make_object<td_api::emojiStatusTypeCustomEmoji>(custom_emoji_id), expiration_date)));
-    } else if (op == "scese") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::setChatEmojiStatus>(chat_id, nullptr));
-    } else if (op == "scperm") {
-      ChatId chat_id;
-      string permissions;
-      get_args(args, chat_id, permissions);
-      constexpr size_t EXPECTED_SIZE = 14;
-      if (permissions.size() == EXPECTED_SIZE) {
-        auto &s = permissions;
-        send_request(td_api::make_object<td_api::setChatPermissions>(
-            chat_id, td_api::make_object<td_api::chatPermissions>(s[0] == '1', s[1] == '1', s[2] == '1', s[3] == '1',
-                                                                  s[4] == '1', s[5] == '1', s[6] == '1', s[7] == '1',
-                                                                  s[8] == '1', s[9] == '1', s[10] == '1', s[11] == '1',
-                                                                  s[12] == '1', s[13] == '1')));
-      } else {
-        LOG(ERROR) << "Wrong permissions size, expected " << EXPECTED_SIZE;
-      }
-    } else if (op == "sctn") {
-      ChatId chat_id;
-      string theme_name;
-      get_args(args, chat_id, theme_name);
-      send_request(td_api::make_object<td_api::setChatTheme>(chat_id, theme_name));
-    } else if (op == "sccd") {
-      ChatId chat_id;
-      string client_data;
-      get_args(args, chat_id, client_data);
-      send_request(td_api::make_object<td_api::setChatClientData>(chat_id, client_data));
-    } else if (op == "acm") {
-      ChatId chat_id;
-      UserId user_id;
-      int32 forward_limit;
-      get_args(args, chat_id, user_id, forward_limit);
-      send_request(td_api::make_object<td_api::addChatMember>(chat_id, user_id, forward_limit));
-    } else if (op == "acms") {
-      ChatId chat_id;
-      string user_ids;
-      get_args(args, chat_id, user_ids);
-      send_request(td_api::make_object<td_api::addChatMembers>(chat_id, as_user_ids(user_ids)));
-    } else if (op == "bcm") {
-      ChatId chat_id;
-      string member_id;
-      int32 banned_until_date;
-      bool revoke_messages;
-      get_args(args, chat_id, member_id, banned_until_date, revoke_messages);
-      send_request(td_api::make_object<td_api::banChatMember>(chat_id, as_message_sender(member_id), banned_until_date,
-                                                              revoke_messages));
-    } else if (op == "spolla") {
-      ChatId chat_id;
-      MessageId message_id;
-      string option_ids;
-      get_args(args, chat_id, message_id, option_ids);
-      send_request(td_api::make_object<td_api::setPollAnswer>(chat_id, message_id, to_integers<int32>(option_ids)));
-    } else if (op == "gpollv") {
-      ChatId chat_id;
-      MessageId message_id;
-      int32 option_id;
-      int32 offset;
-      string limit;
-      get_args(args, chat_id, message_id, option_id, offset, limit);
-      send_request(td_api::make_object<td_api::getPollVoters>(chat_id, message_id, option_id, offset, as_limit(limit)));
-    } else if (op == "stoppoll") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      if (!business_connection_id_.empty()) {
-        send_request(
-            td_api::make_object<td_api::stopBusinessPoll>(business_connection_id_, chat_id, message_id, nullptr));
-      } else {
-        send_request(td_api::make_object<td_api::stopPoll>(chat_id, message_id, nullptr));
-      }
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "scms") {
-      ChatId chat_id;
-      string member_id;
-      string status_str;
-      td_api::object_ptr<td_api::ChatMemberStatus> status;
-      get_args(args, chat_id, member_id, status_str);
-      if (status_str == "member") {
-        status = td_api::make_object<td_api::chatMemberStatusMember>();
-      } else if (status_str == "left") {
-        status = td_api::make_object<td_api::chatMemberStatusLeft>();
-      } else if (status_str == "banned") {
-        status = td_api::make_object<td_api::chatMemberStatusBanned>(std::numeric_limits<int32>::max());
-      } else if (status_str == "creator") {
-        status = td_api::make_object<td_api::chatMemberStatusCreator>("", false, true);
-      } else if (status_str == "creatortitle") {
-        status = td_api::make_object<td_api::chatMemberStatusCreator>("owner", false, true);
-      } else if (status_str == "creatoranon") {
-        status = td_api::make_object<td_api::chatMemberStatusCreator>("", true, true);
-      } else if (status_str == "uncreator") {
-        status = td_api::make_object<td_api::chatMemberStatusCreator>("", false, false);
-      } else if (status_str == "anonadmin") {
-        status = td_api::make_object<td_api::chatMemberStatusAdministrator>(
-            "anon", true,
-            as_chat_administrator_rights(true, true, true, true, true, true, true, true, true, true, true, true, true,
-                                         true, true));
-      } else if (status_str == "anon") {
-        status = td_api::make_object<td_api::chatMemberStatusAdministrator>(
-            "anon", false,
-            as_chat_administrator_rights(false, false, false, false, false, false, false, false, false, false, false,
-                                         false, false, false, true));
-      } else if (status_str == "addadmin") {
-        status = td_api::make_object<td_api::chatMemberStatusAdministrator>(
-            "anon", false,
-            as_chat_administrator_rights(false, false, false, false, false, false, false, false, false, true, false,
-                                         false, false, false, false));
-      } else if (status_str == "calladmin") {
-        status = td_api::make_object<td_api::chatMemberStatusAdministrator>(
-            "anon", false,
-            as_chat_administrator_rights(false, false, false, false, false, false, false, false, false, false, true,
-                                         false, false, false, false));
-      } else if (status_str == "admin") {
-        status = td_api::make_object<td_api::chatMemberStatusAdministrator>(
-            "", true,
-            as_chat_administrator_rights(false, true, true, true, true, true, true, true, true, true, true, true, true,
-                                         true, false));
-      } else if (status_str == "adminq") {
-        status = td_api::make_object<td_api::chatMemberStatusAdministrator>(
-            "title", true,
-            as_chat_administrator_rights(false, true, true, true, true, true, true, true, true, true, true, true, true,
-                                         true, false));
-      } else if (status_str == "minadmin") {
-        status = td_api::make_object<td_api::chatMemberStatusAdministrator>(
-            "", true,
-            as_chat_administrator_rights(true, false, false, false, false, false, false, false, false, false, false,
-                                         false, false, false, false));
-      } else if (status_str == "unadmin") {
-        status = td_api::make_object<td_api::chatMemberStatusAdministrator>("", true, nullptr);
-      } else if (status_str == "rest") {
-        status = td_api::make_object<td_api::chatMemberStatusRestricted>(
-            true, static_cast<int32>(120 + std::time(nullptr)),
-            td_api::make_object<td_api::chatPermissions>(false, false, false, false, false, false, false, false, false,
-                                                         false, false, false, false, false));
-      } else if (status_str == "restkick") {
-        status = td_api::make_object<td_api::chatMemberStatusRestricted>(
-            false, static_cast<int32>(120 + std::time(nullptr)),
-            td_api::make_object<td_api::chatPermissions>(true, false, false, false, false, false, false, false, false,
-                                                         false, false, false, false, false));
-      } else if (status_str == "restunkick") {
-        status = td_api::make_object<td_api::chatMemberStatusRestricted>(
-            true, static_cast<int32>(120 + std::time(nullptr)),
-            td_api::make_object<td_api::chatPermissions>(true, false, false, false, false, false, false, false, false,
-                                                         false, false, false, false, false));
-      } else if (status_str == "unrest") {
-        status = td_api::make_object<td_api::chatMemberStatusRestricted>(
-            true, 0,
-            td_api::make_object<td_api::chatPermissions>(true, true, true, true, true, true, true, true, true, true,
-                                                         true, true, true, true));
-      }
-      if (status != nullptr) {
-        send_request(
-            td_api::make_object<td_api::setChatMemberStatus>(chat_id, as_message_sender(member_id), std::move(status)));
-      } else {
-        LOG(ERROR) << "Unknown status \"" << status_str << "\"";
-      }
-    } else if (op == "cto") {
-      send_request(td_api::make_object<td_api::canTransferOwnership>());
-    } else if (op == "transferChatOwnership") {
-      ChatId chat_id;
-      UserId user_id;
-      string password;
-      get_args(args, chat_id, user_id, password);
-      send_request(td_api::make_object<td_api::transferChatOwnership>(chat_id, user_id, password));
-    } else if (op == "log") {
-      ChatId chat_id;
-      string limit;
-      string user_ids;
-      get_args(args, chat_id, limit, user_ids);
-      send_request(td_api::make_object<td_api::getChatEventLog>(chat_id, "", 0, as_limit(limit), nullptr,
-                                                                as_user_ids(user_ids)));
-    } else if (op == "logf") {
-      get_log_chat_id_ = as_chat_id(args);
-      send_request(td_api::make_object<td_api::getChatEventLog>(get_log_chat_id_, "", 0, 100, nullptr, Auto()));
-    } else if (op == "gtz") {
-      send_request(td_api::make_object<td_api::getTimeZones>());
-    } else if (op == "join") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::joinChat>(chat_id));
-    } else if (op == "leave") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::leaveChat>(chat_id));
-    } else if (op == "dcm") {
-      ChatId chat_id;
-      string member_id;
-      get_args(args, chat_id, member_id);
-      td_api::object_ptr<td_api::ChatMemberStatus> status = td_api::make_object<td_api::chatMemberStatusBanned>();
-      if (as_user_id(member_id) == my_id_) {
-        status = td_api::make_object<td_api::chatMemberStatusLeft>();
-      }
-      send_request(
-          td_api::make_object<td_api::setChatMemberStatus>(chat_id, as_message_sender(member_id), std::move(status)));
-    } else if (op == "sn") {
-      string first_name;
-      string last_name;
-      get_args(args, first_name, last_name);
-      send_request(td_api::make_object<td_api::setName>(first_name, last_name));
-    } else if (op == "sb") {
-      send_request(td_api::make_object<td_api::setBio>("\n" + args + "\n" + args + "\n"));
-    } else if (op == "sun") {
-      send_request(td_api::make_object<td_api::setUsername>(args));
-    } else if (op == "tunia") {
-      string username;
-      bool is_active;
-      get_args(args, username, is_active);
-      send_request(td_api::make_object<td_api::toggleUsernameIsActive>(username, is_active));
-    } else if (op == "raun") {
-      send_request(td_api::make_object<td_api::reorderActiveUsernames>(autosplit_str(args)));
-    } else if (op == "sbd") {
-      int32 day;
-      int32 month;
-      int32 year;
-      get_args(args, day, month, year);
-      if (day == 0) {
-        send_request(td_api::make_object<td_api::setBirthdate>(nullptr));
-      } else {
-        send_request(
-            td_api::make_object<td_api::setBirthdate>(td_api::make_object<td_api::birthdate>(day, month, year)));
-      }
-    } else if (op == "spec") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::setPersonalChat>(chat_id));
-    } else if (op == "sese") {
-      send_request(td_api::make_object<td_api::setEmojiStatus>(nullptr));
-    } else if (op == "ses") {
-      CustomEmojiId custom_emoji_id;
-      int32 expiration_date;
-      get_args(args, custom_emoji_id, expiration_date);
-      send_request(td_api::make_object<td_api::setEmojiStatus>(td_api::make_object<td_api::emojiStatus>(
-          td_api::make_object<td_api::emojiStatusTypeCustomEmoji>(custom_emoji_id), expiration_date)));
-    } else if (op == "sesg") {
-      int64 upgraded_gift_id;
-      string title;
-      string name;
-      CustomEmojiId model_custom_emoji_id;
-      CustomEmojiId symbol_custom_emoji_id;
-      int32 center_color;
-      int32 edge_color;
-      int32 symbol_color;
-      int32 text_color;
-      int32 expiration_date;
-      get_args(args, upgraded_gift_id, title, name, model_custom_emoji_id, symbol_custom_emoji_id, center_color,
-               edge_color, symbol_color, text_color);
-      send_request(td_api::make_object<td_api::setEmojiStatus>(td_api::make_object<td_api::emojiStatus>(
-          td_api::make_object<td_api::emojiStatusTypeUpgradedGift>(
-              upgraded_gift_id, title, name, model_custom_emoji_id, symbol_custom_emoji_id,
-              td_api::make_object<td_api::upgradedGiftBackdropColors>(center_color, edge_color, symbol_color,
-                                                                      text_color)),
-          expiration_date)));
-    } else if (op == "thsme") {
-      send_request(td_api::make_object<td_api::toggleHasSponsoredMessagesEnabled>(as_bool(args)));
-    } else if (op == "gtes") {
-      send_request(td_api::make_object<td_api::getThemedEmojiStatuses>());
-    } else if (op == "gdes") {
-      send_request(td_api::make_object<td_api::getDefaultEmojiStatuses>());
-    } else if (op == "gres") {
-      send_request(td_api::make_object<td_api::getRecentEmojiStatuses>());
-    } else if (op == "guges") {
-      send_request(td_api::make_object<td_api::getUpgradedGiftEmojiStatuses>());
-    } else if (op == "cres") {
-      send_request(td_api::make_object<td_api::clearRecentEmojiStatuses>());
-    } else if (op == "gtces") {
-      send_request(td_api::make_object<td_api::getThemedChatEmojiStatuses>());
-    } else if (op == "gdces") {
-      send_request(td_api::make_object<td_api::getDefaultChatEmojiStatuses>());
-    } else if (op == "gdices") {
-      send_request(td_api::make_object<td_api::getDisallowedChatEmojiStatuses>());
-    } else if (op == "ccun") {
-      ChatId chat_id;
-      string username;
-      get_args(args, chat_id, username);
-      send_request(td_api::make_object<td_api::checkChatUsername>(chat_id, username));
-    } else if (op == "ssgun" || op == "schun") {
-      string supergroup_id;
-      string username;
-      get_args(args, supergroup_id, username);
-      send_request(td_api::make_object<td_api::setSupergroupUsername>(as_supergroup_id(supergroup_id), username));
-    } else if (op == "tsgunia" || op == "tchunia") {
-      string supergroup_id;
-      string username;
-      bool is_active;
-      get_args(args, supergroup_id, username, is_active);
-      send_request(td_api::make_object<td_api::toggleSupergroupUsernameIsActive>(as_supergroup_id(supergroup_id),
-                                                                                 username, is_active));
-    } else if (op == "dasgun" || op == "dachun") {
-      string supergroup_id;
-      get_args(args, supergroup_id);
-      send_request(td_api::make_object<td_api::disableAllSupergroupUsernames>(as_supergroup_id(supergroup_id)));
-    } else if (op == "rsgaun" || op == "rchaun") {
-      string supergroup_id;
-      get_args(args, supergroup_id, args);
-      send_request(td_api::make_object<td_api::reorderSupergroupActiveUsernames>(as_supergroup_id(supergroup_id),
-                                                                                 autosplit_str(args)));
-    } else if (op == "ssgss") {
-      string supergroup_id;
-      int64 sticker_set_id;
-      get_args(args, supergroup_id, sticker_set_id);
-      send_request(
-          td_api::make_object<td_api::setSupergroupStickerSet>(as_supergroup_id(supergroup_id), sticker_set_id));
-    } else if (op == "ssgcess") {
-      string supergroup_id;
-      int64 sticker_set_id;
-      get_args(args, supergroup_id, sticker_set_id);
-      send_request(td_api::make_object<td_api::setSupergroupCustomEmojiStickerSet>(as_supergroup_id(supergroup_id),
-                                                                                   sticker_set_id));
-    } else if (op == "ssgubc") {
-      string supergroup_id;
-      int32 unrestrict_boost_count;
-      get_args(args, supergroup_id, unrestrict_boost_count);
-      send_request(td_api::make_object<td_api::setSupergroupUnrestrictBoostCount>(as_supergroup_id(supergroup_id),
-                                                                                  unrestrict_boost_count));
-    } else if (op == "tsgp") {
-      string supergroup_id;
-      bool is_all_history_available;
-      get_args(args, supergroup_id, is_all_history_available);
-      send_request(td_api::make_object<td_api::toggleSupergroupIsAllHistoryAvailable>(as_supergroup_id(supergroup_id),
-                                                                                      is_all_history_available));
-    } else if (op == "tsgchsm") {
-      string supergroup_id;
-      bool can_have_sponsored_messages;
-      get_args(args, supergroup_id, can_have_sponsored_messages);
-      send_request(td_api::make_object<td_api::toggleSupergroupCanHaveSponsoredMessages>(
-          as_supergroup_id(supergroup_id), can_have_sponsored_messages));
-    } else if (op == "tsghhm") {
-      string supergroup_id;
-      bool has_hidden_members;
-      get_args(args, supergroup_id, has_hidden_members);
-      send_request(td_api::make_object<td_api::toggleSupergroupHasHiddenMembers>(as_supergroup_id(supergroup_id),
-                                                                                 has_hidden_members));
-    } else if (op == "tsgas") {
-      string supergroup_id;
-      bool has_aggressive_anti_spam_enabled;
-      get_args(args, supergroup_id, has_aggressive_anti_spam_enabled);
-      send_request(td_api::make_object<td_api::toggleSupergroupHasAggressiveAntiSpamEnabled>(
-          as_supergroup_id(supergroup_id), has_aggressive_anti_spam_enabled));
-    } else if (op == "tsgif") {
-      string supergroup_id;
-      bool is_forum;
-      get_args(args, supergroup_id, is_forum);
-      send_request(td_api::make_object<td_api::toggleSupergroupIsForum>(as_supergroup_id(supergroup_id), is_forum));
-    } else if (op == "tsibg") {
-      string supergroup_id;
-      get_args(args, supergroup_id);
-      send_request(td_api::make_object<td_api::toggleSupergroupIsBroadcastGroup>(as_supergroup_id(supergroup_id)));
-    } else if (op == "tsgsm") {
-      string supergroup_id;
-      bool sign_messages;
-      bool show_message_sender;
-      get_args(args, supergroup_id, sign_messages, show_message_sender);
-      send_request(td_api::make_object<td_api::toggleSupergroupSignMessages>(as_supergroup_id(supergroup_id),
-                                                                             sign_messages, show_message_sender));
-    } else if (op == "tsgjtsm") {
-      string supergroup_id;
-      bool join_to_send_message;
-      get_args(args, supergroup_id, join_to_send_message);
-      send_request(td_api::make_object<td_api::toggleSupergroupJoinToSendMessages>(as_supergroup_id(supergroup_id),
-                                                                                   join_to_send_message));
-    } else if (op == "tsgjbr") {
-      string supergroup_id;
-      bool join_by_request;
-      get_args(args, supergroup_id, join_by_request);
-      send_request(
-          td_api::make_object<td_api::toggleSupergroupJoinByRequest>(as_supergroup_id(supergroup_id), join_by_request));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "scar") {
-      ChatId chat_id;
-      int32 max_reaction_count;
-      string available_reactions;
-      get_args(args, chat_id, max_reaction_count, available_reactions);
-      td_api::object_ptr<td_api::ChatAvailableReactions> chat_available_reactions;
-      if (available_reactions == "all") {
-        chat_available_reactions = td_api::make_object<td_api::chatAvailableReactionsAll>(max_reaction_count);
-      } else if (!available_reactions.empty()) {
-        auto reactions = transform(autosplit_str(available_reactions), as_reaction_type);
-        chat_available_reactions =
-            td_api::make_object<td_api::chatAvailableReactionsSome>(std::move(reactions), max_reaction_count);
-      }
-      send_request(
-          td_api::make_object<td_api::setChatAvailableReactions>(chat_id, std::move(chat_available_reactions)));
-    } else if (op == "scd") {
-      ChatId chat_id;
-      string description;
-      get_args(args, chat_id, description);
-      send_request(td_api::make_object<td_api::setChatDescription>(chat_id, description));
-    } else if (op == "scdg") {
-      ChatId chat_id;
-      ChatId group_chat_id;
-      get_args(args, chat_id, group_chat_id);
-      send_request(td_api::make_object<td_api::setChatDiscussionGroup>(chat_id, group_chat_id));
-    } else if (op == "scl") {
-      ChatId chat_id;
-      string latitude;
-      string longitude;
-      get_args(args, chat_id, latitude, longitude);
-      send_request(td_api::make_object<td_api::setChatLocation>(
-          chat_id, td_api::make_object<td_api::chatLocation>(as_location(latitude, longitude, string()), "address")));
-    } else if (op == "scsmd") {
-      ChatId chat_id;
-      int32 slow_mode_delay;
-      get_args(args, chat_id, slow_mode_delay);
-      send_request(td_api::make_object<td_api::setChatSlowModeDelay>(chat_id, slow_mode_delay));
-    } else if (op == "pcm" || op == "pcms" || op == "pcmo") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      if (!business_connection_id_.empty()) {
-        send_request(td_api::make_object<td_api::setBusinessMessageIsPinned>(business_connection_id_, chat_id,
-                                                                             message_id, true));
-      } else {
-        send_request(td_api::make_object<td_api::pinChatMessage>(chat_id, message_id, op == "pcms", op == "pcmo"));
-      }
-    } else if (op == "upcm") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      if (!business_connection_id_.empty()) {
-        send_request(td_api::make_object<td_api::setBusinessMessageIsPinned>(business_connection_id_, chat_id,
-                                                                             message_id, false));
-      } else {
-        send_request(td_api::make_object<td_api::unpinChatMessage>(chat_id, message_id));
-      }
-    } else if (op == "uacm") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::unpinAllChatMessages>(chat_id));
-    } else if (op == "uamtm") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      get_args(args, chat_id, message_thread_id);
-      send_request(td_api::make_object<td_api::unpinAllMessageThreadMessages>(chat_id, message_thread_id));
-    } else if (op == "rbm") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::readBusinessMessage>(business_connection_id_, chat_id, message_id));
-    } else if (op == "dbm") {
-      string message_ids;
-      get_args(args, message_ids);
-      send_request(
-          td_api::make_object<td_api::deleteBusinessMessages>(business_connection_id_, as_message_ids(message_ids)));
-    }
-    if (op == "ebsp" || op == "ebsv") {
-      ChatId story_sender_chat_id;
-      StoryId story_id;
-      string story;
-      StoryPrivacySettings rules;
-      InputStoryAreas areas;
-      get_args(args, story_sender_chat_id, story_id, story, rules, areas);
-      td_api::object_ptr<td_api::InputStoryContent> content;
-      if (op == "ebsp") {
-        content =
-            td_api::make_object<td_api::inputStoryContentPhoto>(as_input_file(story), get_added_sticker_file_ids());
-      } else {
-        content = td_api::make_object<td_api::inputStoryContentVideo>(as_input_file(story),
-                                                                      get_added_sticker_file_ids(), 10, 0.5, true);
-      }
-      send_request(td_api::make_object<td_api::editBusinessStory>(story_sender_chat_id, story_id, std::move(content),
-                                                                  areas, get_caption(), rules));
-    } else if (op == "dbs") {
-      StoryId story_id;
-      get_args(args, story_id);
-      send_request(td_api::make_object<td_api::deleteBusinessStory>(business_connection_id_, story_id));
-    } else if (op == "sban") {
-      string first_name;
-      string last_name;
-      get_args(args, first_name, last_name);
-      send_request(td_api::make_object<td_api::setBusinessAccountName>(business_connection_id_, first_name, last_name));
-    } else if (op == "sbab") {
-      string bio;
-      get_args(args, bio);
-      send_request(td_api::make_object<td_api::setBusinessAccountBio>(business_connection_id_, bio));
-    } else if (op == "sbau") {
-      string username;
-      get_args(args, username);
-      send_request(td_api::make_object<td_api::setBusinessAccountUsername>(business_connection_id_, username));
-    } else if (op == "sbapp" || op == "sbappf") {
-      InputChatPhoto input_chat_photo;
-      get_args(args, input_chat_photo);
-      send_request(td_api::make_object<td_api::setBusinessAccountProfilePhoto>(business_connection_id_,
-                                                                               input_chat_photo, op == "sbappf"));
-    } else if (op == "sbags") {
-      bool show_button;
-      bool unlimited_gifts;
-      bool limited_gifts;
-      bool upgraded_gifts;
-      bool premium_subscription;
-      get_args(args, show_button, unlimited_gifts, limited_gifts, upgraded_gifts, premium_subscription);
-      send_request(td_api::make_object<td_api::setBusinessAccountGiftSettings>(
-          business_connection_id_,
-          td_api::make_object<td_api::giftSettings>(
-              show_button, td_api::make_object<td_api::acceptedGiftTypes>(unlimited_gifts, limited_gifts,
-                                                                          upgraded_gifts, premium_subscription))));
-    } else if (op == "gbasa") {
-      send_request(td_api::make_object<td_api::getBusinessAccountStarAmount>(business_connection_id_));
-    } else if (op == "tbas") {
-      int64 star_count;
-      get_args(args, star_count);
-      send_request(td_api::make_object<td_api::transferBusinessAccountStars>(business_connection_id_, star_count));
-    } else if (op == "grib") {
-      send_request(td_api::make_object<td_api::getRecentInlineBots>());
-    } else if (op == "gob") {
-      send_request(td_api::make_object<td_api::getOwnedBots>());
-    } else if (op == "spc" || op == "su") {
-      send_request(td_api::make_object<td_api::searchPublicChat>(args));
-    } else if (op == "spcs") {
-      send_request(td_api::make_object<td_api::searchPublicChats>(args));
-    } else if (op == "sc") {
-      SearchQuery query;
-      get_args(args, query);
-      send_request(td_api::make_object<td_api::searchChats>(query.query, query.limit));
-    } else if (op == "scos") {
-      SearchQuery query;
-      get_args(args, query);
-      send_request(td_api::make_object<td_api::searchChatsOnServer>(query.query, query.limit));
-    } else if (op == "sbl") {
-      string latitude;
-      string longitude;
-      get_args(args, latitude, longitude);
-      if (latitude.empty()) {
-        send_request(td_api::make_object<td_api::setBusinessLocation>(nullptr));
-      } else {
-        send_request(td_api::make_object<td_api::setBusinessLocation>(td_api::make_object<td_api::businessLocation>(
-            longitude.empty() ? nullptr : as_location(latitude, longitude, string()), "business address")));
-      }
-    } else if (op == "sboh") {
-      string time_zone_id;
-      string opening_hours;
-      get_args(args, time_zone_id, opening_hours);
-      if (time_zone_id.empty()) {
-        send_request(td_api::make_object<td_api::setBusinessOpeningHours>(nullptr));
-      } else {
-        auto minutes = to_integers<int32>(opening_hours);
-        if (minutes.size() % 2 == 1) {
-          minutes.push_back(8 * 24 * 60);
-        }
-        vector<td_api::object_ptr<td_api::businessOpeningHoursInterval>> intervals;
-        for (size_t i = 0; i < minutes.size(); i += 2) {
-          intervals.push_back(td_api::make_object<td_api::businessOpeningHoursInterval>(minutes[i], minutes[i + 1]));
-        }
-        send_request(td_api::make_object<td_api::setBusinessOpeningHours>(
-            td_api::make_object<td_api::businessOpeningHours>(time_zone_id, std::move(intervals))));
-      }
-    } else if (op == "sbgms") {
-      ShortcutId shortcut_id;
-      string chat_ids;
-      int32 inactivity_days;
-      get_args(args, shortcut_id, chat_ids, inactivity_days);
-      if (shortcut_id == 0) {
-        send_request(td_api::make_object<td_api::setBusinessGreetingMessageSettings>(nullptr));
-      } else {
-        send_request(td_api::make_object<td_api::setBusinessGreetingMessageSettings>(
-            td_api::make_object<td_api::businessGreetingMessageSettings>(shortcut_id, as_business_recipients(chat_ids),
-                                                                         inactivity_days)));
-      }
-    } else if (op == "sbams" || op == "sbamso") {
-      ShortcutId shortcut_id;
-      string chat_ids;
-      string schedule;
-      get_args(args, shortcut_id, chat_ids, schedule);
-      if (shortcut_id == 0) {
-        send_request(td_api::make_object<td_api::setBusinessAwayMessageSettings>(nullptr));
-      } else {
-        td_api::object_ptr<td_api::BusinessAwayMessageSchedule> schedule_object;
-        if (schedule[0] == 'a') {
-          schedule_object = td_api::make_object<td_api::businessAwayMessageScheduleAlways>();
-        } else if (schedule[0] == 'o') {
-          schedule_object = td_api::make_object<td_api::businessAwayMessageScheduleOutsideOfOpeningHours>();
-        } else {
-          auto start_date = to_integer<int32>(schedule);
-          schedule_object = td_api::make_object<td_api::businessAwayMessageScheduleCustom>(
-              start_date, start_date + Random::fast(1000, 100000));
-        }
-        send_request(td_api::make_object<td_api::setBusinessAwayMessageSettings>(
-            td_api::make_object<td_api::businessAwayMessageSettings>(shortcut_id, as_business_recipients(chat_ids),
-                                                                     std::move(schedule_object), op == "sbamso")));
-      }
-    } else if (op == "sbsp") {
-      string title;
-      string message;
-      string sticker;
-      get_args(args, title, message, sticker);
-      if (title.empty()) {
-        send_request(td_api::make_object<td_api::setBusinessStartPage>(nullptr));
-      } else {
-        send_request(td_api::make_object<td_api::setBusinessStartPage>(
-            td_api::make_object<td_api::inputBusinessStartPage>(title, message, as_input_file(sticker))));
-      }
-    } else if (op == "gbcb") {
-      send_request(td_api::make_object<td_api::getBusinessConnectedBot>());
-    } else if (op == "sbcb") {
-      UserId bot_user_id;
-      string chat_ids;
-      bool can_reply;
-      bool can_read_messages;
-      bool can_delete_outgoing_messages;
-      bool can_delete_incoming_messages;
-      bool can_edit_name;
-      bool can_edit_bio;
-      bool can_edit_profile_photo;
-      bool can_edit_username;
-      bool can_view_gifts;
-      bool can_sell_gifts;
-      bool can_change_gift_settings;
-      bool can_transfer_and_upgrade_gifts;
-      bool can_transfer_stars;
-      bool can_manage_stories;
-      get_args(args, bot_user_id, chat_ids, can_reply, can_read_messages, can_delete_outgoing_messages,
-               can_delete_incoming_messages, can_edit_name, can_edit_bio, can_edit_profile_photo, can_edit_username,
-               can_view_gifts, can_sell_gifts, can_change_gift_settings, can_transfer_and_upgrade_gifts,
-               can_transfer_stars, can_manage_stories);
-      send_request(
-          td_api::make_object<td_api::setBusinessConnectedBot>(td_api::make_object<td_api::businessConnectedBot>(
-              bot_user_id, as_business_recipients(chat_ids),
-              td_api::make_object<td_api::businessBotRights>(
-                  can_reply, can_read_messages, can_delete_outgoing_messages, can_delete_incoming_messages,
-                  can_edit_name, can_edit_bio, can_edit_profile_photo, can_edit_username, can_view_gifts,
-                  can_sell_gifts, can_change_gift_settings, can_transfer_and_upgrade_gifts, can_transfer_stars,
-                  can_manage_stories))));
-    } else if (op == "tbcbcip") {
-      ChatId chat_id;
-      bool is_paused;
-      get_args(args, chat_id, is_paused);
-      send_request(td_api::make_object<td_api::toggleBusinessConnectedBotChatIsPaused>(chat_id, is_paused));
-    } else if (op == "rbcbfc") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::removeBusinessConnectedBotFromChat>(chat_id));
-    } else if (op == "dbcb") {
-      UserId bot_user_id;
-      get_args(args, bot_user_id);
-      send_request(td_api::make_object<td_api::deleteBusinessConnectedBot>(bot_user_id));
-    } else if (op == "gbcl") {
-      send_request(td_api::make_object<td_api::getBusinessChatLinks>());
-    } else if (op == "cbcl") {
-      string text;
-      string title;
-      get_args(args, text, title);
-      send_request(td_api::make_object<td_api::createBusinessChatLink>(
-          td_api::make_object<td_api::inputBusinessChatLink>(as_formatted_text(text), title)));
-    } else if (op == "ebcl") {
-      string link;
-      string text;
-      string title;
-      get_args(args, link, text, title);
-      send_request(td_api::make_object<td_api::editBusinessChatLink>(
-          link, td_api::make_object<td_api::inputBusinessChatLink>(as_formatted_text(text), title)));
-    } else if (op == "dbcl") {
-      send_request(td_api::make_object<td_api::deleteBusinessChatLink>(args));
-    } else if (op == "gbcli") {
-      send_request(td_api::make_object<td_api::getBusinessChatLinkInfo>(args));
-    } else if (op == "gbc") {
-      send_request(td_api::make_object<td_api::getBusinessConnection>(args.empty() ? business_connection_id_ : args));
-    } else if (op == "sco") {
-      SearchQuery query;
-      get_args(args, query);
-      send_request(td_api::make_object<td_api::searchContacts>(query.query, query.limit));
-    } else if (op == "srfc") {
-      SearchQuery query;
-      get_args(args, query);
-      send_request(td_api::make_object<td_api::searchRecentlyFoundChats>(query.query, query.limit));
-    } else if (op == "arfc") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::addRecentlyFoundChat>(chat_id));
-    } else if (op == "rrfc") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::removeRecentlyFoundChat>(chat_id));
-    } else if (op == "crfcs") {
-      send_request(td_api::make_object<td_api::clearRecentlyFoundChats>());
-    } else if (op == "groc") {
-      send_request(td_api::make_object<td_api::getRecentlyOpenedChats>(as_limit(args)));
-    } else if (op == "glp") {
-      send_request(td_api::make_object<td_api::getLinkPreview>(as_formatted_text(args), get_link_preview_options()));
-    } else if (op == "gwpiv") {
-      string url;
-      bool only_local;
-      get_args(args, url, only_local);
-      send_request(td_api::make_object<td_api::getWebPageInstantView>(url, only_local));
-    } else if (op == "spp" || op == "spppf") {
-      InputChatPhoto input_chat_photo;
-      get_args(args, input_chat_photo);
-      send_request(td_api::make_object<td_api::setProfilePhoto>(input_chat_photo, op == "sppf"));
-    } else if (op == "suppp") {
-      UserId user_id;
-      InputChatPhoto input_chat_photo;
-      get_args(args, user_id, input_chat_photo);
-      send_request(td_api::make_object<td_api::setUserPersonalProfilePhoto>(user_id, input_chat_photo));
-    } else if (op == "supp") {
-      UserId user_id;
-      InputChatPhoto input_chat_photo;
-      get_args(args, user_id, input_chat_photo);
-      send_request(td_api::make_object<td_api::suggestUserProfilePhoto>(user_id, input_chat_photo));
-    } else if (op == "tbcmes") {
-      UserId user_id;
-      bool can_manage_emoji_status;
-      get_args(args, user_id, can_manage_emoji_status);
-      send_request(td_api::make_object<td_api::toggleBotCanManageEmojiStatus>(user_id, can_manage_emoji_status));
-    } else if (op == "cbsm") {
-      UserId bot_user_id;
-      get_args(args, bot_user_id);
-      send_request(td_api::make_object<td_api::canBotSendMessages>(bot_user_id));
-    } else if (op == "abtsm") {
-      UserId bot_user_id;
-      get_args(args, bot_user_id);
-      send_request(td_api::make_object<td_api::allowBotToSendMessages>(bot_user_id));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "swacr") {
-      UserId bot_user_id;
-      string method;
-      string parameters;
-      get_args(args, bot_user_id, method, parameters);
-      send_request(td_api::make_object<td_api::sendWebAppCustomRequest>(bot_user_id, method, parameters));
-    } else if (op == "gbmp") {
-      UserId bot_user_id;
-      get_args(args, bot_user_id);
-      send_request(td_api::make_object<td_api::getBotMediaPreviews>(bot_user_id));
-    } else if (op == "gbmpi") {
-      UserId bot_user_id;
-      string language_code;
-      get_args(args, bot_user_id, language_code);
-      send_request(td_api::make_object<td_api::getBotMediaPreviewInfo>(bot_user_id, language_code));
-    } else if (op == "abmpp") {
-      UserId bot_user_id;
-      string language_code;
-      string photo;
-      get_args(args, bot_user_id, language_code, photo);
-      send_request(td_api::make_object<td_api::addBotMediaPreview>(
-          bot_user_id, language_code,
-          td_api::make_object<td_api::inputStoryContentPhoto>(as_input_file(photo), get_added_sticker_file_ids())));
-    } else if (op == "abmpv") {
-      UserId bot_user_id;
-      string language_code;
-      string video;
-      get_args(args, bot_user_id, language_code, video);
-      send_request(td_api::make_object<td_api::addBotMediaPreview>(
-          bot_user_id, language_code,
-          td_api::make_object<td_api::inputStoryContentVideo>(as_input_file(video), get_added_sticker_file_ids(), 0.0,
-                                                              1.5, true)));
-    } else if (op == "ebmpp") {
-      UserId bot_user_id;
-      string language_code;
-      FileId file_id;
-      string photo;
-      get_args(args, bot_user_id, language_code, file_id, photo);
-      send_request(td_api::make_object<td_api::editBotMediaPreview>(
-          bot_user_id, language_code, file_id,
-          td_api::make_object<td_api::inputStoryContentPhoto>(as_input_file(photo), get_added_sticker_file_ids())));
-    } else if (op == "ebmpv") {
-      UserId bot_user_id;
-      string language_code;
-      FileId file_id;
-      string video;
-      get_args(args, bot_user_id, language_code, file_id, video);
-      send_request(td_api::make_object<td_api::editBotMediaPreview>(
-          bot_user_id, language_code, file_id,
-          td_api::make_object<td_api::inputStoryContentVideo>(as_input_file(video), get_added_sticker_file_ids(), 0.0,
-                                                              1.5, true)));
-    } else if (op == "rbmp") {
-      UserId bot_user_id;
-      string language_code;
-      string file_ids;
-      get_args(args, bot_user_id, language_code, file_ids);
-      send_request(
-          td_api::make_object<td_api::reorderBotMediaPreviews>(bot_user_id, language_code, as_file_ids(file_ids)));
-    } else if (op == "dbmp") {
-      UserId bot_user_id;
-      string language_code;
-      string file_ids;
-      get_args(args, bot_user_id, language_code, file_ids);
-      send_request(
-          td_api::make_object<td_api::deleteBotMediaPreviews>(bot_user_id, language_code, as_file_ids(file_ids)));
-    } else if (op == "gbi") {
-      UserId bot_user_id;
-      string language_code;
-      get_args(args, bot_user_id, language_code);
-      send_request(td_api::make_object<td_api::getBotName>(bot_user_id, language_code));
-      send_request(td_api::make_object<td_api::getBotInfoDescription>(bot_user_id, language_code));
-      send_request(td_api::make_object<td_api::getBotInfoShortDescription>(bot_user_id, language_code));
-    } else if (op == "sbit") {
-      UserId bot_user_id;
-      string language_code;
-      string name;
-      string description;
-      string short_description;
-      get_args(args, bot_user_id, language_code, name, description, short_description);
-      send_request(td_api::make_object<td_api::setBotName>(bot_user_id, language_code, name));
-      send_request(td_api::make_object<td_api::setBotInfoDescription>(bot_user_id, language_code, description));
-      send_request(
-          td_api::make_object<td_api::setBotInfoShortDescription>(bot_user_id, language_code, short_description));
-    } else if (op == "sbn") {
-      UserId bot_user_id;
-      string language_code;
-      string name;
-      get_args(args, bot_user_id, language_code, name);
-      send_request(td_api::make_object<td_api::setBotName>(bot_user_id, language_code, name));
-    } else if (op == "gbn") {
-      UserId bot_user_id;
-      string language_code;
-      get_args(args, bot_user_id, language_code);
-      send_request(td_api::make_object<td_api::getBotName>(bot_user_id, language_code));
-    } else if (op == "sbpp") {
-      UserId bot_user_id;
-      InputChatPhoto input_chat_photo;
-      get_args(args, bot_user_id, input_chat_photo);
-      send_request(td_api::make_object<td_api::setBotProfilePhoto>(bot_user_id, input_chat_photo));
-    } else if (op == "tbunia") {
-      UserId bot_user_id;
-      string username;
-      bool is_active;
-      get_args(args, bot_user_id, username, is_active);
-      send_request(td_api::make_object<td_api::toggleBotUsernameIsActive>(bot_user_id, username, is_active));
-    } else if (op == "rbaun") {
-      UserId bot_user_id;
-      string usernames;
-      get_args(args, bot_user_id, usernames);
-      send_request(td_api::make_object<td_api::reorderBotActiveUsernames>(bot_user_id, autosplit_str(usernames)));
-    } else if (op == "sbid") {
-      UserId bot_user_id;
-      string language_code;
-      string description;
-      get_args(args, bot_user_id, language_code, description);
-      send_request(td_api::make_object<td_api::setBotInfoDescription>(bot_user_id, language_code, description));
-    } else if (op == "gbid") {
-      UserId bot_user_id;
-      string language_code;
-      get_args(args, bot_user_id, language_code);
-      send_request(td_api::make_object<td_api::getBotInfoDescription>(bot_user_id, language_code));
-    } else if (op == "sbisd") {
-      UserId bot_user_id;
-      string language_code;
-      string short_description;
-      get_args(args, bot_user_id, language_code, short_description);
-      send_request(
-          td_api::make_object<td_api::setBotInfoShortDescription>(bot_user_id, language_code, short_description));
-    } else if (op == "gbisd") {
-      UserId bot_user_id;
-      string language_code;
-      get_args(args, bot_user_id, language_code);
-      send_request(td_api::make_object<td_api::getBotInfoShortDescription>(bot_user_id, language_code));
-    } else if (op == "smsbv") {
-      UserId bot_user_id;
-      string sender_id;
-      string custom_description;
-      get_args(args, bot_user_id, sender_id, custom_description);
-      send_request(td_api::make_object<td_api::setMessageSenderBotVerification>(
-          bot_user_id, as_message_sender(sender_id), custom_description));
-    } else if (op == "rmsbv") {
-      UserId bot_user_id;
-      string sender_id;
-      get_args(args, bot_user_id, sender_id);
-      send_request(
-          td_api::make_object<td_api::removeMessageSenderBotVerification>(bot_user_id, as_message_sender(sender_id)));
-    } else if (op == "sh") {
-      const string &prefix = args;
-      send_request(td_api::make_object<td_api::searchHashtags>(prefix, 10));
-    } else if (op == "rrh") {
-      const string &hashtag = args;
-      send_request(td_api::make_object<td_api::removeRecentHashtag>(hashtag));
-    } else if (op == "view" || op == "viewh" || op == "viewt" || op == "views") {
-      ChatId chat_id;
-      string message_ids;
-      get_args(args, chat_id, message_ids);
-      td_api::object_ptr<td_api::MessageSource> source;
-      if (op == "viewh") {
-        source = td_api::make_object<td_api::messageSourceChatHistory>();
-      } else if (op == "viewt") {
-        source = td_api::make_object<td_api::messageSourceMessageThreadHistory>();
-      } else if (op == "views") {
-        source = td_api::make_object<td_api::messageSourceScreenshot>();
-      }
-      send_request(
-          td_api::make_object<td_api::viewMessages>(chat_id, as_message_ids(message_ids), std::move(source), true));
-    } else if (op == "omc") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::openMessageContent>(chat_id, message_id));
-    } else if (op == "caem") {
-      ChatId chat_id;
-      MessageId message_id;
-      get_args(args, chat_id, message_id);
-      send_request(td_api::make_object<td_api::clickAnimatedEmojiMessage>(chat_id, message_id));
-    } else if (op == "gilt") {
-      const string &link = args;
-      send_request(td_api::make_object<td_api::getInternalLinkType>(link));
-    } else if (op == "geli") {
-      const string &link = args;
-      send_request(td_api::make_object<td_api::getExternalLinkInfo>(link));
-    } else if (op == "gel" || op == "gelw") {
-      const string &link = args;
-      send_request(td_api::make_object<td_api::getExternalLink>(link, op == "gelw"));
-    } else if (op == "racm") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::readAllChatMentions>(chat_id));
-    } else if (op == "ramtm") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      get_args(args, chat_id, message_thread_id);
-      send_request(td_api::make_object<td_api::readAllMessageThreadMentions>(chat_id, message_thread_id));
-    } else if (op == "racr") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::readAllChatReactions>(chat_id));
-    } else if (op == "ramtr") {
-      ChatId chat_id;
-      MessageThreadId message_thread_id;
-      get_args(args, chat_id, message_thread_id);
-      send_request(td_api::make_object<td_api::readAllMessageThreadReactions>(chat_id, message_thread_id));
-    } else if (op == "tre") {
-      send_request(td_api::make_object<td_api::testReturnError>(
-          args.empty() ? nullptr : td_api::make_object<td_api::error>(-1, args)));
-    } else if (op == "dpp") {
-      int64 profile_photo_id;
-      get_args(args, profile_photo_id);
-      send_request(td_api::make_object<td_api::deleteProfilePhoto>(profile_photo_id));
-    } else if (op == "sac") {
-      int32 accent_color_id;
-      CustomEmojiId background_custom_emoji_id;
-      get_args(args, accent_color_id, background_custom_emoji_id);
-      send_request(td_api::make_object<td_api::setAccentColor>(accent_color_id, background_custom_emoji_id));
-    } else if (op == "spac") {
-      int32 profile_accent_color_id;
-      CustomEmojiId profile_background_custom_emoji_id;
-      get_args(args, profile_accent_color_id, profile_background_custom_emoji_id);
-      send_request(td_api::make_object<td_api::setProfileAccentColor>(profile_accent_color_id,
-                                                                      profile_background_custom_emoji_id));
-    } else if (op == "gns") {
-      int64 notification_sound_id;
-      get_args(args, notification_sound_id);
-      send_request(td_api::make_object<td_api::getSavedNotificationSound>(notification_sound_id));
-    } else if (op == "gnss") {
-      send_request(td_api::make_object<td_api::getSavedNotificationSounds>());
-    } else if (op == "asns") {
-      string sound;
-      get_args(args, sound);
-      send_request(td_api::make_object<td_api::addSavedNotificationSound>(as_input_file(sound)));
-    } else if (op == "rns") {
-      int64 notification_sound_id;
-      get_args(args, notification_sound_id);
-      send_request(td_api::make_object<td_api::removeSavedNotificationSound>(notification_sound_id));
-    } else if (op == "gcnse" || op == "gcnses") {
-      send_request(td_api::make_object<td_api::getChatNotificationSettingsExceptions>(
-          as_notification_settings_scope(args), op == "gcnses"));
-    } else if (op == "gsns") {
-      send_request(td_api::make_object<td_api::getScopeNotificationSettings>(as_notification_settings_scope(args)));
-    } else if (op == "scns" || op == "ssns" || op == "sftns") {
-      string scope;
-      string mute_for;
-      int64 sound_id;
-      string show_preview;
-      string mute_stories;
-      int64 story_sound_id;
-      string hide_story_sender;
-      string disable_pinned_message_notifications;
-      string disable_mention_notifications;
-      get_args(args, scope, mute_for, sound_id, show_preview, mute_stories, story_sound_id, hide_story_sender,
-               disable_pinned_message_notifications, disable_mention_notifications);
-      if (op == "ssns") {
-        send_request(td_api::make_object<td_api::setScopeNotificationSettings>(
-            as_notification_settings_scope(scope),
-            td_api::make_object<td_api::scopeNotificationSettings>(
-                to_integer<int32>(mute_for), sound_id, as_bool(show_preview), mute_stories.empty(),
-                as_bool(mute_stories), story_sound_id, as_bool(hide_story_sender),
-                as_bool(disable_pinned_message_notifications), as_bool(disable_mention_notifications))));
-      } else {
-        auto settings = td_api::make_object<td_api::chatNotificationSettings>(
-            mute_for.empty(), to_integer<int32>(mute_for), sound_id == -1, sound_id, show_preview.empty(),
-            as_bool(show_preview), mute_stories.empty(), as_bool(mute_stories), story_sound_id == -1, story_sound_id,
-            hide_story_sender.empty(), as_bool(hide_story_sender), disable_pinned_message_notifications.empty(),
-            as_bool(disable_pinned_message_notifications), disable_mention_notifications.empty(),
-            as_bool(disable_mention_notifications));
-        if (op == "scns") {
-          send_request(
-              td_api::make_object<td_api::setChatNotificationSettings>(as_chat_id(scope), std::move(settings)));
-        } else {
-          string chat_id;
-          string message_id;
-          std::tie(chat_id, message_id) = split(scope, ',');
-          send_request(td_api::make_object<td_api::setForumTopicNotificationSettings>(
-              as_chat_id(chat_id), as_message_id(message_id), std::move(settings)));
-        }
-      }
-    } else if (op == "srns") {
-      ReactionNotificationSource message_reactions;
-      ReactionNotificationSource story_reactions;
-      int64 sound_id;
-      bool show_preview;
-      get_args(args, message_reactions, story_reactions, sound_id, show_preview);
-      send_request(td_api::make_object<td_api::setReactionNotificationSettings>(
-          td_api::make_object<td_api::reactionNotificationSettings>(message_reactions, story_reactions, sound_id,
-                                                                    show_preview)));
-    } else if (op == "rans") {
-      send_request(td_api::make_object<td_api::resetAllNotificationSettings>());
-    } else if (op == "rn") {
-      int32 group_id;
-      string notification_ids;
-      get_args(args, group_id, notification_ids);
-      for (auto notification_id : to_integers<int32>(notification_ids)) {
-        send_request(td_api::make_object<td_api::removeNotification>(group_id, notification_id));
-      }
-    } else if (op == "rng") {
-      int32 group_id;
-      int32 max_notification_id;
-      get_args(args, group_id, max_notification_id);
-      send_request(td_api::make_object<td_api::removeNotificationGroup>(group_id, max_notification_id));
-    } else if (op == "rcab") {
-      ChatId chat_id;
-      get_args(args, chat_id);
-      send_request(td_api::make_object<td_api::removeChatActionBar>(chat_id));
-    } else if (op == "rc") {
-      ChatId chat_id;
-      string option_id;
-      string message_ids;
-      string text;
-      get_args(args, chat_id, option_id, message_ids, text);
-      send_request(td_api::make_object<td_api::reportChat>(chat_id, option_id, as_message_ids(message_ids), text));
-    } else if (op == "rcp") {
-      ChatId chat_id;
-      FileId file_id;
-      ReportReason reason;
-      string text;
-      get_args(args, chat_id, file_id, reason, text);
-      send_request(td_api::make_object<td_api::reportChatPhoto>(chat_id, file_id, reason, text));
-    } else if (op == "reportmr") {
-      ChatId chat_id;
-      MessageId message_id;
-      string sender_id;
-      get_args(args, chat_id, message_id, sender_id);
-      send_request(
-          td_api::make_object<td_api::reportMessageReactions>(chat_id, message_id, as_message_sender(sender_id)));
-    } else if (op == "gcst") {
-      ChatId chat_id;
-      bool is_dark;
-      get_args(args, chat_id, is_dark);
-      send_request(td_api::make_object<td_api::getChatStatistics>(chat_id, is_dark));
-    } else if (op == "gcrst") {
-      ChatId chat_id;
-      bool is_dark;
-      get_args(args, chat_id, is_dark);
-      send_request(td_api::make_object<td_api::getChatRevenueStatistics>(chat_id, is_dark));
-    } else if (op == "gcrwu") {
-      ChatId chat_id;
-      string password;
-      get_args(args, chat_id, password);
-      send_request(td_api::make_object<td_api::getChatRevenueWithdrawalUrl>(chat_id, password));
-    } else if (op == "gcrt") {
-      ChatId chat_id;
-      int32 offset;
-      string limit;
-      get_args(args, chat_id, offset, limit);
-      send_request(td_api::make_object<td_api::getChatRevenueTransactions>(chat_id, offset, as_limit(limit)));
-    } else if (op == "gsrs") {
-      string owner_id;
-      bool is_dark;
-      get_args(args, owner_id, is_dark);
-      send_request(td_api::make_object<td_api::getStarRevenueStatistics>(as_message_sender(owner_id), is_dark));
-    } else if (op == "gswu") {
-      string owner_id;
-      int32 star_count;
-      string password;
-      get_args(args, owner_id, star_count, password);
-      send_request(
-          td_api::make_object<td_api::getStarWithdrawalUrl>(as_message_sender(owner_id), star_count, password));
-    } else if (op == "gsaau") {
-      string owner_id;
-      get_args(args, owner_id);
-      send_request(td_api::make_object<td_api::getStarAdAccountUrl>(as_message_sender(owner_id)));
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op == "sgs") {
-      ChatId chat_id;
-      MessageId message_id;
-      UserId user_id;
-      int32 score;
-      get_args(args, chat_id, message_id, user_id, score);
-      send_request(td_api::make_object<td_api::setGameScore>(chat_id, message_id, true, user_id, score, true));
-    } else if (op == "gghs") {
-      ChatId chat_id;
-      MessageId message_id;
-      UserId user_id;
-      get_args(args, chat_id, message_id, user_id);
-      send_request(td_api::make_object<td_api::getGameHighScores>(chat_id, message_id, user_id));
-    } else if (op == "gmst") {
-      ChatId chat_id;
-      MessageId message_id;
-      bool is_dark;
-      get_args(args, chat_id, message_id, is_dark);
-      send_request(td_api::make_object<td_api::getMessageStatistics>(chat_id, message_id, is_dark));
-    } else if (op == "gsst") {
-      ChatId chat_id;
-      StoryId story_id;
-      bool is_dark;
-      get_args(args, chat_id, story_id, is_dark);
-      send_request(td_api::make_object<td_api::getStoryStatistics>(chat_id, story_id, is_dark));
-    } else if (op == "gstg") {
-      ChatId chat_id;
-      string token;
-      int64 x;
-      get_args(args, chat_id, token, x);
-      send_request(td_api::make_object<td_api::getStatisticalGraph>(chat_id, token, x));
-    } else if (op == "hsa") {
-      send_request(td_api::make_object<td_api::hideSuggestedAction>(as_suggested_action(args)));
-    } else if (op == "hccb") {
-      send_request(td_api::make_object<td_api::hideContactCloseBirthdays>());
-    } else if (op == "glui" || op == "glu" || op == "glua") {
-      ChatId chat_id;
-      MessageId message_id;
-      int32 button_id;
-      get_args(args, chat_id, message_id, button_id);
-      if (op == "glui") {
-        send_request(td_api::make_object<td_api::getLoginUrlInfo>(chat_id, message_id, button_id));
-      } else {
-        send_request(td_api::make_object<td_api::getLoginUrl>(chat_id, message_id, button_id, op == "glua"));
-      }
-    } else if (op == "suwb" || op == "suwbc") {
-      ChatId chat_id;
-      MessageId message_id;
-      int32 button_id;
-      string shared_user_ids;
-      get_args(args, chat_id, message_id, button_id, shared_user_ids);
-      send_request(td_api::make_object<td_api::shareUsersWithBot>(chat_id, message_id, button_id,
-                                                                  as_user_ids(shared_user_ids), op == "suwbc"));
-    } else if (op == "scwb" || op == "scwbc") {
-      ChatId chat_id;
-      MessageId message_id;
-      int32 button_id;
-      ChatId shared_chat_id;
-      get_args(args, chat_id, message_id, button_id, shared_chat_id);
-      send_request(
-          td_api::make_object<td_api::shareChatWithBot>(chat_id, message_id, button_id, shared_chat_id, op == "scwbc"));
-    } else if (op == "rsgs") {
-      string supergroup_id;
-      string message_ids;
-      get_args(args, supergroup_id, message_ids);
-      send_request(td_api::make_object<td_api::reportSupergroupSpam>(as_supergroup_id(supergroup_id),
-                                                                     as_message_ids(message_ids)));
-    } else if (op == "rsgasfp") {
-      string supergroup_id;
-      MessageId message_id;
-      get_args(args, supergroup_id, message_id);
-      send_request(td_api::make_object<td_api::reportSupergroupAntiSpamFalsePositive>(as_supergroup_id(supergroup_id),
-                                                                                      message_id));
-    } else if (op == "gdiff") {
-      send_request(td_api::make_object<td_api::testGetDifference>());
-    } else if (op == "dproxy") {
-      send_request(td_api::make_object<td_api::disableProxy>());
-    } else if (op == "eproxy") {
-      send_request(td_api::make_object<td_api::enableProxy>(as_proxy_id(args)));
-    } else if (op == "rproxy") {
-      send_request(td_api::make_object<td_api::removeProxy>(as_proxy_id(args)));
-    } else if (op == "aproxy" || op == "aeproxy" || op == "aeproxytcp" || op == "editproxy" || op == "editeproxy" ||
-               op == "editeproxytcp" || op == "tproxy") {
-      string proxy_id;
-      string server;
-      int32 port;
-      string user;
-      string password;
-      if (op[0] == 'e') {
-        get_args(args, proxy_id, args);
-      }
-      get_args(args, server, port, user, password);
-      bool enable = op != "aproxy" && op != "editproxy";
-      td_api::object_ptr<td_api::ProxyType> type;
-      if (!user.empty() && password.empty()) {
-        type = td_api::make_object<td_api::proxyTypeMtproto>(user);
-      } else {
-        if (port == 80 || port == 8080) {
-          type = td_api::make_object<td_api::proxyTypeHttp>(user, password, op.back() != 'p');
-        } else {
-          type = td_api::make_object<td_api::proxyTypeSocks5>(user, password);
-        }
-      }
-      if (op[0] == 'e') {
-        send_request(
-            td_api::make_object<td_api::editProxy>(as_proxy_id(proxy_id), server, port, enable, std::move(type)));
-      } else if (op == "tproxy") {
-        send_request(td_api::make_object<td_api::testProxy>(server, port, std::move(type), 2, 10.0));
-      } else {
-        send_request(td_api::make_object<td_api::addProxy>(server, port, enable, std::move(type)));
-      }
-    } else if (op == "gproxy" || op == "gproxies") {
-      send_request(td_api::make_object<td_api::getProxies>());
-    } else if (op == "gproxyl" || op == "gpl") {
-      send_request(td_api::make_object<td_api::getProxyLink>(as_proxy_id(args)));
-    } else if (op == "pproxy") {
-      send_request(td_api::make_object<td_api::pingProxy>(as_proxy_id(args)));
-    } else if (op == "gusi") {
-      UserId user_id;
-      get_args(args, user_id);
-      send_request(td_api::make_object<td_api::getUserSupportInfo>(user_id));
-    } else if (op == "susi") {
-      UserId user_id;
-      string text;
-      get_args(args, user_id, text);
-      send_request(td_api::make_object<td_api::setUserSupportInfo>(user_id, as_formatted_text(text)));
-    } else if (op == "gsn") {
-      send_request(td_api::make_object<td_api::getSupportName>());
-    } else if (op == "touch") {
-      auto r_fd = FileFd::open(args, FileFd::Read | FileFd::Write);
-      if (r_fd.is_error()) {
-        LOG(ERROR) << r_fd.error();
-        return;
-      }
-
-      auto fd = r_fd.move_as_ok();
-      auto size = fd.get_size().move_as_ok();
-      fd.seek(size).ignore();
-      fd.write("a").ignore();
-      fd.seek(size).ignore();
-      fd.truncate_to_current_position(size).ignore();
-    } else if (op == "mem") {
-      auto r_mem_stats = mem_stat();
-      if (r_mem_stats.is_error()) {
-        LOG(ERROR) << r_mem_stats.error();
-      } else {
-        auto stats = r_mem_stats.move_as_ok();
-        LOG(ERROR) << "RSS = " << stats.resident_size_ << ", peak RSS = " << stats.resident_size_peak_ << ", VSZ "
-                   << stats.virtual_size_ << ", peak VSZ = " << stats.virtual_size_peak_;
-      }
-    } else if (op == "cpu") {
-      auto inc_count = to_integer<uint32>(args);
-      while (inc_count-- > 0) {
-        cpu_counter_++;
-      }
-      auto r_cpu_stats = cpu_stat();
-      if (r_cpu_stats.is_error()) {
-        LOG(ERROR) << r_cpu_stats.error();
-      } else {
-        auto stats = r_cpu_stats.move_as_ok();
-        LOG(ERROR) << cpu_counter_.load() << ", total ticks = " << stats.total_ticks_
-                   << ", user ticks = " << stats.process_user_ticks_
-                   << ", system ticks = " << stats.process_system_ticks_;
-      }
-    } else if (op[0] == 'v' && (op[1] == 'v' || is_digit(op[1]))) {
-      int new_verbosity_level = op[1] == 'v' ? static_cast<int>(op.size()) : to_integer<int>(op.substr(1));
-      SET_VERBOSITY_LEVEL(td::max(new_verbosity_level, VERBOSITY_NAME(DEBUG)));
-      combined_log.set_first_verbosity_level(new_verbosity_level);
-    } else if (op == "slse") {
-      execute(td_api::make_object<td_api::setLogStream>(td_api::make_object<td_api::logStreamEmpty>()));
-    } else if (op == "slsd") {
-      execute(td_api::make_object<td_api::setLogStream>(td_api::make_object<td_api::logStreamDefault>()));
-    } else if (op == "gls") {
-      execute(td_api::make_object<td_api::getLogStream>());
-    } else if (op == "slvl") {
-      int32 new_verbosity_level;
-      get_args(args, new_verbosity_level);
-      execute(td_api::make_object<td_api::setLogVerbosityLevel>(new_verbosity_level));
-    } else if (op == "glvl") {
-      execute(td_api::make_object<td_api::getLogVerbosityLevel>());
-    } else if (op == "gtags" || op == "glt") {
-      execute(td_api::make_object<td_api::getLogTags>());
-    } else if (op == "sltvl" || op == "sltvle" || op == "tag") {
-      string tag;
-      int32 level;
-      get_args(args, tag, level);
-      auto request = td_api::make_object<td_api::setLogTagVerbosityLevel>(tag, level);
-      if (op == "sltvl") {
-        send_request(std::move(request));
-      } else {
-        execute(std::move(request));
-      }
-    } else if (op == "gltvl" || op == "gltvle" || op == "gtag") {
-      const string &tag = args;
-      auto request = td_api::make_object<td_api::getLogTagVerbosityLevel>(tag);
-      if (op == "gltvl") {
-        send_request(std::move(request));
-      } else {
-        execute(std::move(request));
-      }
-    } else if (op == "alog" || op == "aloge") {
-      int32 level;
-      string text;
-      get_args(args, level, text);
-      auto request = td_api::make_object<td_api::addLogMessage>(level, text);
-      if (op == "alog") {
-        send_request(std::move(request));
-      } else {
-        execute(std::move(request));
-      }
-    } else if (op == "q") {
-      quit();
-    } else if (op == "dnq") {
-      dump_pending_network_queries(*net_query_stats_);
-    } else if (op == "fatal") {
-      LOG(FATAL) << "Fatal!";
-    } else if (op == "unreachable") {
-      UNREACHABLE();
-    } else {
-      op_not_found_count++;
-    }
-
-    if (op_not_found_count == OP_BLOCK_COUNT && !cmd.empty()) {
-      LOG(ERROR) << "Unknown command \"" << cmd << "\" of length " << cmd.size();
-    }
-  }
-
-  bool is_inited_ = false;
-  void loop() final {
-    if (!is_inited_) {
-      is_inited_ = true;
-      init();
-    }
-    stdin_.flush_read().ensure();
-#ifdef USE_READLINE
-    while (!stdin_.input_buffer().empty()) {
-      rl_callback_read_char();
-    }
-#else
-    while (true) {
-      auto cmd = process_stdin(&stdin_.input_buffer());
-      if (cmd.is_error()) {
-        break;
-      }
-      add_cmd(cmd.ok().as_slice().str());
-    }
-#endif
-
-    while (!cmd_queue_.empty() && !close_flag_) {
-      auto cmd = std::move(cmd_queue_.front());
-      cmd_queue_.pop();
-      on_cmd(std::move(cmd));
-    }
-
-    if (ready_to_stop_ && close_flag_ && is_stdin_reader_stopped_) {
-#ifdef USE_READLINE
-      rl_callback_handler_remove();
-#endif
-      Scheduler::instance()->finish();
-      stop();
-    }
-  }
-
-  void timeout_expired() final {
-    if (close_flag_) {
-      return;
-    }
-
-    for (auto it = pending_file_generations_.begin(); it != pending_file_generations_.end();) {
-      auto left_size = it->size - it->local_size;
-      CHECK(left_size > 0);
-      if (it->part_size > left_size) {
-        it->part_size = left_size;
-      }
-      BufferSlice block(narrow_cast<size_t>(it->part_size));
-      FileFd::open(it->source, FileFd::Flags::Read)
-          .move_as_ok()
-          .pread(block.as_mutable_slice(), it->local_size)
-          .ensure();
-      if (rand_bool()) {
-        auto open_flags = FileFd::Flags::Write | (it->local_size ? 0 : FileFd::Flags::Truncate | FileFd::Flags::Create);
-        FileFd::open(it->destination, open_flags).move_as_ok().pwrite(block.as_slice(), it->local_size).ensure();
-      } else {
-        send_request(
-            td_api::make_object<td_api::writeGeneratedFilePart>(it->id, it->local_size, block.as_slice().str()));
-      }
-      it->local_size += it->part_size;
-      if (it->local_size == it->size) {
-        send_request(td_api::make_object<td_api::setFileGenerationProgress>(it->id, it->size, it->size));
-        send_request(td_api::make_object<td_api::finishFileGeneration>(it->id, nullptr));
-        it = pending_file_generations_.erase(it);
-      } else {
-        auto local_size = it->local_size;
-        if (it->test_local_size_decrease && local_size > it->size / 2) {
-          local_size = local_size * 2 - it->size;
-        }
-        send_request(td_api::make_object<td_api::setFileGenerationProgress>(it->id, (it->size + 3 * it->local_size) / 4,
-                                                                            local_size));
-        ++it;
-      }
-    }
-
-    if (!pending_file_generations_.empty()) {
-      set_timeout_in(0.01);
-    }
-  }
-
-  void notify() final {
-    auto guard = scheduler_->get_send_guard();
-    send_event_later(actor_id(), Event::yield());
-  }
-
-  void hangup_shared() final {
-    CHECK(get_link_token() == 1);
-    LOG(INFO) << "StdinReader stopped";
-    is_stdin_reader_stopped_ = true;
-    yield();
-  }
-
-  void add_cmd(string cmd) {
-    cmd_queue_.push(std::move(cmd));
-  }
-  int stdin_getc() {
-    auto slice = stdin_.input_buffer().prepare_read();
-    if (slice.empty()) {
-      return EOF;
-    }
-    int res = static_cast<unsigned char>(slice[0]);
-    stdin_.input_buffer().confirm_read(1);
-    return res;
-  }
-
-  FlatHashMap<int32, double> being_downloaded_files_;
-
-  int64 my_id_ = 0;
-  td_api::object_ptr<td_api::AuthorizationState> authorization_state_;
-  string schedule_date_;
-  int64 paid_message_star_count_ = 0;
-  int64 message_effect_id_ = 0;
-  bool only_preview_ = false;
-  MessageThreadId message_thread_id_;
-  string business_connection_id_;
-  bool has_spoiler_ = false;
-  int32 message_self_destruct_time_ = 0;
-  int64 opened_chat_id_ = 0;
-
-  ChatId reply_chat_id_;
-  MessageId reply_message_id_;
-  string reply_quote_;
-  int32 reply_quote_position_ = 0;
-  ChatId reply_story_chat_id_;
-  StoryId reply_story_id_;
-  ChatId reposted_story_chat_id_;
-  StoryId reposted_story_id_;
-  string link_preview_url_;
-  bool link_preview_is_disabled_ = false;
-  bool link_preview_force_small_media_ = false;
-  bool link_preview_force_large_media_ = false;
-  bool link_preview_show_above_text_ = false;
-  bool show_caption_above_media_ = false;
-  int64 saved_messages_topic_id_ = 0;
-  string quick_reply_shortcut_name_;
-  vector<int32> added_sticker_file_ids_;
-  string caption_;
-  string cover_;
-  string thumbnail_;
-  int32 start_timestamp_ = 0;
-
-  ConcurrentScheduler *scheduler_{nullptr};
-
-  bool use_test_dc_ = false;
-  std::shared_ptr<NetQueryStats> net_query_stats_ = create_net_query_stats();
-  ActorOwn<ClientActor> td_client_;
-  std::queue<string> cmd_queue_;
-  bool close_flag_ = false;
-  bool ready_to_stop_ = false;
-  bool is_stdin_reader_stopped_ = false;
-
-  bool get_chat_list_ = false;
-  bool disable_network_ = false;
-  int api_id_ = 0;
-  std::string api_hash_;
-
-  int32 group_call_source_ = Random::fast(1, 1000000000);
-
-  static std::atomic<uint64> cpu_counter_;
-};
-CliClient *CliClient::instance_ = nullptr;
-std::atomic<uint64> CliClient::cpu_counter_;
-
-void quit() {
-  CliClient::quit_instance();
-}
-
-static void fail_signal(int sig) {
-  signal_safe_write_signal_number(sig);
-  while (true) {
-    // spin forever to allow debugger to attach
-  }
-}
-
-static void on_log_message(int verbosity_level, const char *message) {
-  if (verbosity_level == 0) {
-    std::cerr << "Fatal error: " << message;
-  }
-  // std::cerr << "Log message: " << message;
-}
-
-void main(int argc, char **argv) {
-  ExitGuard exit_guard;
-  detail::ThreadIdGuard thread_id_guard;
-  ignore_signal(SignalType::HangUp).ensure();
-  ignore_signal(SignalType::Pipe).ensure();
-  set_signal_handler(SignalType::Error, fail_signal).ensure();
-  set_signal_handler(SignalType::Abort, fail_signal).ensure();
-  ClientManager::set_log_message_callback(0, on_log_message);
-  init_openssl_threads();
-
-  std::locale new_locale("C");
-  std::locale::global(new_locale);
-  SCOPE_EXIT {
-    std::locale::global(std::locale::classic());
-    static NullLog null_log;
-    log_interface = &null_log;
-  };
-
-  CliLog cli_log;
-
-  FileLog file_log;
-  TsLog ts_log(&file_log);
-
-  combined_log.set_first(&cli_log);
-
-  log_interface = &combined_log;
-
-  int new_verbosity_level = VERBOSITY_NAME(INFO);
-  bool use_test_dc = false;
-  bool get_chat_list = false;
-  bool disable_network = false;
-  auto api_id = [](auto x) -> int32 {
-    if (x) {
-      return to_integer<int32>(Slice(x));
-    }
-    return 0;
-  }(std::getenv("TD_API_ID"));
-  auto api_hash = [](auto x) -> std::string {
-    if (x) {
-      return x;
-    }
-    return std::string();
-  }(std::getenv("TD_API_HASH"));
-
-  OptionParser options;
-  options.set_description("TDLib test client");
-  options.add_option('\0', "test", "Use test DC", [&] { use_test_dc = true; });
-  options.add_option('v', "verbosity", "Set verbosity level", [&](Slice level) {
-    int new_verbosity = 1;
-    while (begins_with(level, "v")) {
-      new_verbosity++;
-      level.remove_prefix(1);
-    }
-    if (!level.empty()) {
-      new_verbosity += to_integer<int>(level) - (new_verbosity == 1);
-    }
-    new_verbosity_level = VERBOSITY_NAME(FATAL) + new_verbosity;
-  });
-  options.add_option('l', "log", "Log to file", [&](Slice file_name) {
-    if (file_log.init(file_name.str()).is_ok() && file_log.init(file_name.str()).is_ok() &&
-        file_log.init(file_name.str(), 1000 << 20).is_ok()) {
-      combined_log.set_first(&ts_log);
-    }
-  });
-  options.add_option('W', "", "Preload chat list", [&] { get_chat_list = true; });
-  options.add_option('n', "disable-network", "Disable network", [&] { disable_network = true; });
-  options.add_checked_option('\0', "api-id", "Set Telegram API ID", OptionParser::parse_integer(api_id));
-  options.add_option('\0', "api-hash", "Set Telegram API hash", OptionParser::parse_string(api_hash));
-  options.add_check([&] {
-    if (api_id == 0 || api_hash.empty()) {
-      return Status::Error("You must provide valid api-id and api-hash obtained at https://my.telegram.org");
-    }
-    return Status::OK();
-  });
-  auto r_non_options = options.run(argc, argv, 0);
-  if (r_non_options.is_error()) {
-    LOG(PLAIN) << argv[0] << ": " << r_non_options.error().message();
-    LOG(PLAIN) << options;
-    return;
-  }
-
-  SET_VERBOSITY_LEVEL(td::max(new_verbosity_level, VERBOSITY_NAME(DEBUG)));
-  combined_log.set_first_verbosity_level(new_verbosity_level);
-
-  if (combined_log.get_first() == &cli_log) {
-    file_log.init("tg_cli.log", 1000 << 20, false).ensure();
-    file_log.lazy_rotate();
-    combined_log.set_second(&ts_log);
-    combined_log.set_second_verbosity_level(VERBOSITY_NAME(DEBUG));
-  }
-
-  {
-    ConcurrentScheduler scheduler(3, 0);
-
-    class CreateClient final : public Actor {
-     public:
-      CreateClient(ConcurrentScheduler *scheduler, bool use_test_dc, bool get_chat_list, bool disable_network,
-                   int32 api_id, std::string api_hash)
-          : scheduler_(scheduler)
-          , use_test_dc_(use_test_dc)
-          , get_chat_list_(get_chat_list)
-          , disable_network_(disable_network)
-          , api_id_(api_id)
-          , api_hash_(std::move(api_hash)) {
-      }
-
-     private:
-      void start_up() final {
-        create_actor<CliClient>("CliClient", scheduler_, use_test_dc_, get_chat_list_, disable_network_, api_id_,
-                                api_hash_)
-            .release();
-      }
-
-      ConcurrentScheduler *scheduler_;
-      bool use_test_dc_;
-      bool get_chat_list_;
-      bool disable_network_;
-      int32 api_id_;
-      std::string api_hash_;
-    };
-    scheduler
-        .create_actor_unsafe<CreateClient>(0, "CreateClient", &scheduler, use_test_dc, get_chat_list, disable_network,
-                                           api_id, api_hash)
-        .release();
-
-    scheduler.start();
-    while (scheduler.run_main(Timestamp::in(100))) {
-    }
-    scheduler.finish();
-  }
-
-  dump_memory_usage();
-}
-
-}  // namespace td
-
-int main(int argc, char **argv) {
-  td::main(argc, argv);
-}
diff --git a/third-party/td/td/td/telegram/files/FileBitmask.cpp b/third-party/td/td/td/telegram/files/FileBitmask.cpp
deleted file mode 100644
index eced325678..0000000000
--- a/third-party/td/td/td/telegram/files/FileBitmask.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileBitmask.h"
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-
-namespace td {
-
-Bitmask::Bitmask(Decode, Slice data) : data_(zero_one_decode(data)) {
-}
-
-Bitmask::Bitmask(Ones, int64 count) : data_(narrow_cast<size_t>((count + 7) / 8), '\0') {
-  for (int64 i = 0; i < count; i++) {
-    set(i);
-  }
-}
-
-Bitmask Bitmask::compress(int k) const {
-  Bitmask res;
-  for (int64 i = 0; i * k < size(); i++) {
-    bool f = true;
-    for (int64 j = 0; j < k && f; j++) {
-      f &= get(i * k + j);
-    }
-    if (f) {
-      res.set(i);
-    }
-  }
-  return res;
-}
-
-std::string Bitmask::encode(int32 prefix_count) {
-  // remove zeroes at the end to make encoding deterministic
-  Slice data(data_);
-
-  int save_i = -1;
-  char save_c;
-  if (prefix_count != -1) {
-    auto truncated_size = (prefix_count + 7) / 8;
-    data.truncate(truncated_size);
-    if (prefix_count % 8 != 0) {
-      save_i = truncated_size - 1;
-      save_c = data_[save_i];
-      auto mask = 0xff >> (8 - prefix_count % 8);
-      data_[save_i] = static_cast<char>(data_[save_i] & mask);
-    }
-  }
-  SCOPE_EXIT {
-    if (save_i != -1) {
-      data_[save_i] = save_c;
-    }
-  };
-  while (!data.empty() && data.back() == '\0') {
-    data.remove_suffix(1);
-  }
-  return zero_one_encode(data);
-}
-
-int64 Bitmask::get_ready_prefix_size(int64 offset, int64 part_size, int64 file_size) const {
-  if (offset < 0) {
-    return 0;
-  }
-  if (part_size == 0) {
-    return 0;
-  }
-  CHECK(part_size > 0);
-  auto offset_part = offset / part_size;
-  auto ones = get_ready_parts(offset_part);
-  if (ones == 0) {
-    return 0;
-  }
-  auto ready_parts_end = (offset_part + ones) * part_size;
-  if (file_size != 0 && ready_parts_end > file_size) {
-    ready_parts_end = file_size;
-    if (offset > file_size) {
-      offset = file_size;
-    }
-  }
-  auto res = ready_parts_end - offset;
-  CHECK(res >= 0);
-  return res;
-}
-
-int64 Bitmask::get_total_size(int64 part_size, int64 file_size) const {
-  int64 res = 0;
-  for (int64 i = 0; i < size(); i++) {
-    if (get(i)) {
-      auto from = i * part_size;
-      auto to = from + part_size;
-      if (file_size != 0 && file_size < to) {
-        to = file_size;
-      }
-      if (from < to) {
-        res += to - from;
-      }
-    }
-  }
-  return res;
-}
-
-bool Bitmask::get(int64 offset_part) const {
-  if (offset_part < 0) {
-    return false;
-  }
-  auto index = narrow_cast<size_t>(offset_part / 8);
-  if (index >= data_.size()) {
-    return false;
-  }
-  return (static_cast<uint8>(data_[index]) & (1 << static_cast<int>(offset_part % 8))) != 0;
-}
-
-int64 Bitmask::get_ready_parts(int64 offset_part) const {
-  int64 res = 0;
-  while (get(offset_part + res)) {
-    res++;
-  }
-  return res;
-}
-
-std::vector<int32> Bitmask::as_vector() const {
-  std::vector<int32> res;
-  auto size = narrow_cast<int32>(data_.size() * 8);
-  for (int32 i = 0; i < size; i++) {
-    if (get(i)) {
-      res.push_back(i);
-    }
-  }
-  return res;
-}
-
-void Bitmask::set(int64 offset_part) {
-  CHECK(offset_part >= 0);
-  auto need_size = narrow_cast<size_t>(offset_part / 8 + 1);
-  if (need_size > data_.size()) {
-    data_.resize(need_size, '\0');
-  }
-  data_[need_size - 1] = static_cast<char>(data_[need_size - 1] | (1 << (offset_part % 8)));
-}
-
-int64 Bitmask::size() const {
-  return static_cast<int64>(data_.size()) * 8;
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const Bitmask &mask) {
-  bool prev = false;
-  int32 cnt = 0;
-  for (int64 i = 0; i <= mask.size(); i++) {
-    bool cur = mask.get(i);
-    if (cur != prev) {  // zeros at the end are intentionally skipped
-      if (cnt < 5) {
-        while (cnt > 0) {
-          sb << (prev ? '1' : '0');
-          cnt--;
-        }
-      } else {
-        sb << (prev ? '1' : '0') << "(x" << cnt << ')';
-        cnt = 0;
-      }
-    }
-    prev = cur;
-    cnt++;
-  }
-  return sb;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileBitmask.h b/third-party/td/td/td/telegram/files/FileBitmask.h
deleted file mode 100644
index e92d86dd55..0000000000
--- a/third-party/td/td/td/telegram/files/FileBitmask.h
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Bitmask {
- public:
-  struct Decode {};
-  struct Ones {};
-  Bitmask() = default;
-  Bitmask(Decode, Slice data);
-  Bitmask(Ones, int64 count);
-  std::string encode(int32 prefix_count = -1);
-  int64 get_ready_prefix_size(int64 offset, int64 part_size, int64 file_size) const;
-  int64 get_total_size(int64 part_size, int64 file_size) const;
-  bool get(int64 offset_part) const;
-
-  int64 get_ready_parts(int64 offset_part) const;
-
-  std::vector<int32> as_vector() const;
-  void set(int64 offset_part);
-  int64 size() const;
-
-  Bitmask compress(int k) const;
-
- private:
-  std::string data_;
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const Bitmask &mask);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileData.h b/third-party/td/td/td/telegram/files/FileData.h
deleted file mode 100644
index 8340544c7a..0000000000
--- a/third-party/td/td/td/telegram/files/FileData.h
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileSourceId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class FileData {
- public:
-  DialogId owner_dialog_id_;
-  uint64 pmc_id_ = 0;
-  RemoteFileLocation remote_;
-  LocalFileLocation local_;
-  unique_ptr<FullGenerateFileLocation> generate_;
-  int64 size_ = 0;
-  int64 expected_size_ = 0;
-  string remote_name_;
-  string url_;
-  FileEncryptionKey encryption_key_;
-  vector<FileSourceId> file_source_ids_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-
-  template <class ParserT>
-  void parse(ParserT &parser, bool register_file_sources);
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const FileData &file_data) {
-  sb << "[" << tag("remote_name", file_data.remote_name_) << " " << tag("size", file_data.size_)
-     << tag("expected_size", file_data.expected_size_) << " " << file_data.encryption_key_;
-  if (!file_data.url_.empty()) {
-    sb << tag("url", file_data.url_);
-  }
-  if (file_data.local_.type() == LocalFileLocation::Type::Full) {
-    sb << " local " << file_data.local_.full();
-  }
-  if (file_data.generate_ != nullptr) {
-    sb << " generate " << *file_data.generate_;
-  }
-  if (file_data.remote_.type() == RemoteFileLocation::Type::Full) {
-    sb << " remote " << file_data.remote_.full();
-  }
-  sb << ", sources = " << file_data.file_source_ids_;
-  return sb << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileData.hpp b/third-party/td/td/td/telegram/files/FileData.hpp
deleted file mode 100644
index 4e01505a27..0000000000
--- a/third-party/td/td/td/telegram/files/FileData.hpp
+++ /dev/null
@@ -1,137 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileData.h"
-
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/FileReferenceManager.hpp"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileLocation.hpp"
-#include "td/telegram/Global.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-void FileData::store(StorerT &storer) const {
-  using ::td::store;
-  bool has_owner_dialog_id = owner_dialog_id_.is_valid();
-  bool has_expected_size = size_ == 0 && expected_size_ != 0;
-  bool encryption_key_is_secure = encryption_key_.is_secure();
-  bool has_sources = !file_source_ids_.empty();
-  bool has_version = true;
-  BEGIN_STORE_FLAGS();
-  STORE_FLAG(has_owner_dialog_id);
-  STORE_FLAG(has_expected_size);
-  STORE_FLAG(encryption_key_is_secure);
-  STORE_FLAG(has_sources);
-  STORE_FLAG(has_version);
-  END_STORE_FLAGS();
-
-  if (has_version) {
-    store(static_cast<int32>(Version::Next) - 1, storer);
-  }
-  if (has_owner_dialog_id) {
-    store(owner_dialog_id_, storer);
-  }
-  store(pmc_id_, storer);
-  store(remote_, storer);
-  store(local_, storer);
-  auto generate = generate_ == nullptr ? GenerateFileLocation() : GenerateFileLocation(*generate_);
-  store(generate, storer);
-  if (has_expected_size) {
-    store(expected_size_, storer);
-  } else {
-    store(size_, storer);
-  }
-  store(remote_name_, storer);
-  store(url_, storer);
-  store(encryption_key_, storer);
-  if (has_sources) {
-    auto td = G()->td().get_actor_unsafe();
-    store(narrow_cast<int32>(file_source_ids_.size()), storer);
-    for (auto file_source_id : file_source_ids_) {
-      td->file_reference_manager_->store_file_source(file_source_id, storer);
-    }
-  }
-}
-
-template <class ParserT>
-void FileData::parse(ParserT &parser, bool register_file_sources) {
-  using ::td::parse;
-  bool has_owner_dialog_id;
-  bool has_expected_size;
-  bool encryption_key_is_secure;
-  bool has_sources;
-  bool has_version;
-  BEGIN_PARSE_FLAGS();
-  PARSE_FLAG(has_owner_dialog_id);
-  PARSE_FLAG(has_expected_size);
-  PARSE_FLAG(encryption_key_is_secure);
-  PARSE_FLAG(has_sources);
-  PARSE_FLAG(has_version);
-  END_PARSE_FLAGS();
-  if (parser.get_error()) {
-    return;
-  }
-
-  int32 version = 0;
-  if (has_version) {
-    parse(version, parser);
-  }
-  parser.set_version(version);
-  if (has_owner_dialog_id) {
-    parse(owner_dialog_id_, parser);
-  }
-  parse(pmc_id_, parser);
-  parse(remote_, parser);
-  parse(local_, parser);
-  GenerateFileLocation generate;
-  parse(generate, parser);
-  if (generate.type() == GenerateFileLocation::Type::Full) {
-    generate_ = make_unique<FullGenerateFileLocation>(generate.full());
-  } else {
-    generate_ = nullptr;
-  }
-  if (has_expected_size) {
-    parse(expected_size_, parser);
-  } else {
-    parse(size_, parser);
-  }
-  parse(remote_name_, parser);
-  parse(url_, parser);
-  encryption_key_.parse(encryption_key_is_secure ? FileEncryptionKey::Type::Secure : FileEncryptionKey::Type::Secret,
-                        parser);
-  if (has_sources && register_file_sources) {
-    Td *td = G()->td().get_actor_unsafe();
-    int32 file_source_count;
-    parse(file_source_count, parser);
-    if (0 < file_source_count && file_source_count < 5) {
-      for (int i = 0; i < file_source_count; i++) {
-        if (parser.get_error()) {
-          return;
-        }
-        auto file_source_id = td->file_reference_manager_->parse_file_source(td, parser);
-        if (file_source_id.is_valid() && !td::contains(file_source_ids_, file_source_id)) {
-          file_source_ids_.push_back(file_source_id);
-        }
-      }
-    } else {
-      parser.set_error("Wrong number of file source identifiers");
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileDb.cpp b/third-party/td/td/td/telegram/files/FileDb.cpp
deleted file mode 100644
index 65bdd7aab1..0000000000
--- a/third-party/td/td/td/telegram/files/FileDb.cpp
+++ /dev/null
@@ -1,302 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileDb.h"
-
-#include "td/telegram/files/FileData.h"
-#include "td/telegram/files/FileData.hpp"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileLocation.hpp"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/Version.h"
-
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueSafe.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-
-namespace td {
-
-Status drop_file_db(SqliteDb &db, int32 version) {
-  LOG(WARNING) << "Drop file_db " << tag("version", version) << tag("current_db_version", current_db_version());
-  TRY_STATUS(SqliteKeyValue::drop(db, "files"));
-  return Status::OK();
-}
-
-Status init_file_db(SqliteDb &db, int32 version) {
-  LOG(INFO) << "Init file database " << tag("version", version);
-
-  // Check if database exists
-  TRY_RESULT(has_table, db.has_table("files"));
-
-  if (!has_table) {
-    version = 0;
-  } else if (version < static_cast<int32>(DbVersion::FixFileRemoteLocationKeyBug)) {
-    TRY_STATUS(drop_file_db(db, version));
-    version = 0;
-  }
-
-  if (version == 0) {
-    TRY_STATUS(SqliteKeyValue::init(db, "files"));
-  }
-  return Status::OK();
-}
-
-class FileDb final : public FileDbInterface {
- public:
-  class FileDbActor final : public Actor {
-   public:
-    FileDbActor(FileDbId max_file_db_id, std::shared_ptr<SqliteKeyValueSafe> file_kv_safe)
-        : max_file_db_id_(max_file_db_id), file_kv_safe_(std::move(file_kv_safe)) {
-    }
-
-    void close(Promise<> promise) {
-      file_kv_safe_.reset();
-      LOG(INFO) << "FileDb is closed";
-      promise.set_value(Unit());
-      stop();
-    }
-
-    void load_file_data(const string &key, Promise<FileData> promise) {
-      promise.set_result(load_file_data_impl(actor_id(this), file_pmc(), key, max_file_db_id_));
-    }
-
-    void clear_file_data(FileDbId file_db_id, const string &remote_key, const string &local_key,
-                         const string &generate_key) {
-      auto &pmc = file_pmc();
-      pmc.begin_write_transaction().ensure();
-
-      if (file_db_id > max_file_db_id_) {
-        pmc.set("file_id", to_string(file_db_id.get()));
-        max_file_db_id_ = file_db_id;
-      }
-
-      pmc.erase(PSTRING() << "file" << file_db_id.get());
-      // LOG(DEBUG) << "ERASE " << format::as_hex_dump<4>(Slice(PSLICE() << "file" << file_db_id.get()));
-
-      if (!remote_key.empty()) {
-        pmc.erase(remote_key);
-        // LOG(DEBUG) << "ERASE remote " << format::as_hex_dump<4>(Slice(remote_key));
-      }
-      if (!local_key.empty()) {
-        pmc.erase(local_key);
-        // LOG(DEBUG) << "ERASE local " << format::as_hex_dump<4>(Slice(local_key));
-      }
-      if (!generate_key.empty()) {
-        pmc.erase(generate_key);
-      }
-
-      pmc.commit_transaction().ensure();
-    }
-
-    void store_file_data(FileDbId file_db_id, const string &file_data, const string &remote_key,
-                         const string &local_key, const string &generate_key) {
-      auto &pmc = file_pmc();
-      pmc.begin_write_transaction().ensure();
-
-      if (file_db_id > max_file_db_id_) {
-        pmc.set("file_id", to_string(file_db_id.get()));
-        max_file_db_id_ = file_db_id;
-      }
-
-      pmc.set(PSTRING() << "file" << file_db_id.get(), file_data);
-
-      if (!remote_key.empty()) {
-        pmc.set(remote_key, to_string(file_db_id.get()));
-      }
-      if (!local_key.empty()) {
-        pmc.set(local_key, to_string(file_db_id.get()));
-      }
-      if (!generate_key.empty()) {
-        pmc.set(generate_key, to_string(file_db_id.get()));
-      }
-
-      pmc.commit_transaction().ensure();
-    }
-
-    void store_file_data_ref(FileDbId file_db_id, FileDbId new_file_db_id) {
-      auto &pmc = file_pmc();
-      pmc.begin_write_transaction().ensure();
-
-      if (file_db_id > max_file_db_id_) {
-        pmc.set("file_id", to_string(file_db_id.get()));
-        max_file_db_id_ = file_db_id;
-      }
-
-      do_store_file_data_ref(file_db_id, new_file_db_id);
-
-      pmc.commit_transaction().ensure();
-    }
-
-    void optimize_refs(std::vector<FileDbId> file_db_ids, FileDbId main_file_db_id) {
-      LOG(INFO) << "Optimize " << file_db_ids.size() << " file_db_ids in file database to " << main_file_db_id.get();
-      auto &pmc = file_pmc();
-      pmc.begin_write_transaction().ensure();
-      for (size_t i = 0; i + 1 < file_db_ids.size(); i++) {
-        do_store_file_data_ref(file_db_ids[i], main_file_db_id);
-      }
-      pmc.commit_transaction().ensure();
-    }
-
-   private:
-    FileDbId max_file_db_id_;
-    std::shared_ptr<SqliteKeyValueSafe> file_kv_safe_;
-
-    SqliteKeyValue &file_pmc() {
-      return file_kv_safe_->get();
-    }
-
-    void do_store_file_data_ref(FileDbId file_db_id, FileDbId new_file_db_id) {
-      file_pmc().set(PSTRING() << "file" << file_db_id.get(), PSTRING() << "@@" << new_file_db_id.get());
-    }
-  };
-
-  explicit FileDb(std::shared_ptr<SqliteKeyValueSafe> kv_safe, int scheduler_id = -1) {
-    file_kv_safe_ = std::move(kv_safe);
-    CHECK(file_kv_safe_);
-    max_file_db_id_ = FileDbId(to_integer<uint64>(file_kv_safe_->get().get("file_id")));
-    file_db_actor_ =
-        create_actor_on_scheduler<FileDbActor>("FileDbActor", scheduler_id, max_file_db_id_, file_kv_safe_);
-  }
-
-  FileDbId get_next_file_db_id() final {
-    max_file_db_id_ = FileDbId(max_file_db_id_.get() + 1);
-    return max_file_db_id_;
-  }
-
-  void close(Promise<> promise) final {
-    send_closure(std::move(file_db_actor_), &FileDbActor::close, std::move(promise));
-  }
-
-  void get_file_data_impl(string key, Promise<FileData> promise) final {
-    send_closure(file_db_actor_, &FileDbActor::load_file_data, std::move(key), std::move(promise));
-  }
-
-  Result<FileData> get_file_data_sync_impl(string key) final {
-    return load_file_data_impl(file_db_actor_.get(), file_kv_safe_->get(), key, max_file_db_id_);
-  }
-
-  void clear_file_data(FileDbId file_db_id, const FileData &file_data) final {
-    string remote_key;
-    if (file_data.remote_.type() == RemoteFileLocation::Type::Full) {
-      remote_key = as_key(file_data.remote_.full());
-    }
-    string local_key;
-    if (file_data.local_.type() == LocalFileLocation::Type::Full) {
-      local_key = as_key(file_data.local_.full());
-    }
-    string generate_key;
-    if (file_data.generate_ != nullptr) {
-      generate_key = as_key(*file_data.generate_);
-    }
-    send_closure(file_db_actor_, &FileDbActor::clear_file_data, file_db_id, remote_key, local_key, generate_key);
-  }
-
-  void set_file_data(FileDbId file_db_id, const FileData &file_data, bool new_remote, bool new_local,
-                     bool new_generate) final {
-    string remote_key;
-    if (file_data.remote_.type() == RemoteFileLocation::Type::Full && new_remote) {
-      remote_key = as_key(file_data.remote_.full());
-    }
-    string local_key;
-    if (file_data.local_.type() == LocalFileLocation::Type::Full && new_local) {
-      local_key = as_key(file_data.local_.full());
-    }
-    string generate_key;
-    if (file_data.generate_ != nullptr && new_generate) {
-      generate_key = as_key(*file_data.generate_);
-    }
-    // LOG(DEBUG) << "SAVE " << file_db_id.get() << " -> " << file_data << " "
-    //            << tag("remote_key", format::as_hex_dump<4>(Slice(remote_key)))
-    //            << tag("local_key", format::as_hex_dump<4>(Slice(local_key)))
-    //            << tag("generate_key", format::as_hex_dump<4>(Slice(generate_key)));
-    send_closure(file_db_actor_, &FileDbActor::store_file_data, file_db_id, serialize(file_data), remote_key, local_key,
-                 generate_key);
-  }
-
-  void set_file_data_ref(FileDbId file_db_id, FileDbId new_file_db_id) final {
-    send_closure(file_db_actor_, &FileDbActor::store_file_data_ref, file_db_id, new_file_db_id);
-  }
-  SqliteKeyValue &pmc() final {
-    return file_kv_safe_->get();
-  }
-
- private:
-  ActorOwn<FileDbActor> file_db_actor_;
-  FileDbId max_file_db_id_;
-  std::shared_ptr<SqliteKeyValueSafe> file_kv_safe_;
-
-  static Result<FileData> load_file_data_impl(ActorId<FileDbActor> file_db_actor_id, SqliteKeyValue &pmc,
-                                              const string &key, FileDbId max_file_db_id) {
-    // LOG(DEBUG) << "Load by key " << format::as_hex_dump<4>(Slice(key));
-    TRY_RESULT(file_db_id, get_file_db_id(pmc, key));
-
-    vector<FileDbId> file_db_ids;
-    string data_str;
-    int attempt_count = 0;
-    while (true) {
-      if (attempt_count > 100) {
-        LOG(FATAL) << "Cycle in file database? max_file_db_id=" << max_file_db_id << " key=" << key
-                   << " links=" << file_db_ids;
-      }
-      attempt_count++;
-
-      data_str = pmc.get(PSTRING() << "file" << file_db_id.get());
-      auto data_slice = Slice(data_str);
-
-      if (data_slice.substr(0, 2) == "@@") {
-        file_db_ids.push_back(file_db_id);
-
-        file_db_id = FileDbId(to_integer<uint64>(data_slice.substr(2)));
-      } else {
-        break;
-      }
-    }
-    if (file_db_ids.size() > 1) {
-      send_closure(file_db_actor_id, &FileDbActor::optimize_refs, std::move(file_db_ids), file_db_id);
-    }
-    // LOG(DEBUG) << "By ID " << file_db_id.get() << " found data " << format::as_hex_dump<4>(Slice(data_str));
-    // LOG(INFO) << attempt_count;
-
-    log_event::WithVersion<TlParser> parser(data_str);
-    parser.set_version(static_cast<int32>(Version::Initial));
-    FileData data;
-    data.parse(parser, true);
-    parser.fetch_end();
-    auto status = parser.get_status();
-    if (status.is_error()) {
-      return std::move(status);
-    }
-    return std::move(data);
-  }
-
-  static Result<FileDbId> get_file_db_id(SqliteKeyValue &pmc, const string &key) TD_WARN_UNUSED_RESULT {
-    auto file_db_id_str = pmc.get(key);
-    // LOG(DEBUG) << "Found ID " << file_db_id_str << " by key " << format::as_hex_dump<4>(Slice(key));
-    if (file_db_id_str.empty()) {
-      return Status::Error("There is no such key in the database");
-    }
-    return FileDbId(to_integer<uint64>(file_db_id_str));
-  }
-};
-
-std::shared_ptr<FileDbInterface> create_file_db(std::shared_ptr<SqliteConnectionSafe> connection, int scheduler_id) {
-  auto kv = std::make_shared<SqliteKeyValueSafe>("files", std::move(connection));
-  return std::make_shared<FileDb>(std::move(kv), scheduler_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileDb.h b/third-party/td/td/td/telegram/files/FileDb.h
deleted file mode 100644
index 7f1235b487..0000000000
--- a/third-party/td/td/td/telegram/files/FileDb.h
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileData.h"
-#include "td/telegram/files/FileDbId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_storers.h"
-
-#include <memory>
-
-namespace td {
-
-class SqliteDb;
-class SqliteConnectionSafe;
-class SqliteKeyValue;
-
-Status drop_file_db(SqliteDb &db, int32 version) TD_WARN_UNUSED_RESULT;
-Status init_file_db(SqliteDb &db, int32 version) TD_WARN_UNUSED_RESULT;
-
-class FileDbInterface;
-std::shared_ptr<FileDbInterface> create_file_db(std::shared_ptr<SqliteConnectionSafe> connection,
-                                                int32 scheduler_id = -1) TD_WARN_UNUSED_RESULT;
-
-class FileDbInterface {
- public:
-  FileDbInterface() = default;
-  FileDbInterface(const FileDbInterface &) = delete;
-  FileDbInterface &operator=(const FileDbInterface &) = delete;
-  virtual ~FileDbInterface() = default;
-
-  // non-thread-safe
-  virtual FileDbId get_next_file_db_id() = 0;
-
-  // thread-safe
-  virtual void close(Promise<> promise) = 0;
-
-  template <class LocationT>
-  static string as_key(const LocationT &object) {
-    TlStorerCalcLength calc_length;
-    calc_length.store_int(0);
-    object.as_key().store(calc_length);
-
-    BufferSlice key_buffer{calc_length.get_length()};
-    auto key = key_buffer.as_mutable_slice();
-    TlStorerUnsafe storer(key.ubegin());
-    storer.store_int(LocationT::KEY_MAGIC);
-    object.as_key().store(storer);
-    CHECK(storer.get_buf() == key.uend());
-    return key.str();
-  }
-
-  template <class LocationT>
-  void get_file_data(const LocationT &location, Promise<FileData> promise) {
-    get_file_data_impl(as_key(location), std::move(promise));
-  }
-
-  template <class LocationT>
-  Result<FileData> get_file_data_sync(const LocationT &location) {
-    auto res = get_file_data_sync_impl(as_key(location));
-    if (res.is_ok()) {
-      LOG(DEBUG) << "GET " << location << ": " << res.ok();
-    } else {
-      LOG(DEBUG) << "GET " << location << ": " << res.error();
-    }
-    return res;
-  }
-
-  virtual void clear_file_data(FileDbId file_db_id, const FileData &file_data) = 0;
-  virtual void set_file_data(FileDbId file_db_id, const FileData &file_data, bool new_remote, bool new_local,
-                             bool new_generate) = 0;
-  virtual void set_file_data_ref(FileDbId file_db_id, FileDbId new_file_db_id) = 0;
-
-  // For FileStatsWorker. TODO: remove it
-  virtual SqliteKeyValue &pmc() = 0;
-
- private:
-  virtual void get_file_data_impl(string key, Promise<FileData> promise) = 0;
-  virtual Result<FileData> get_file_data_sync_impl(string key) = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileDbId.h b/third-party/td/td/td/telegram/files/FileDbId.h
deleted file mode 100644
index a34ac4091e..0000000000
--- a/third-party/td/td/td/telegram/files/FileDbId.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class FileDbId {
-  uint64 id = 0;
-
- public:
-  FileDbId() = default;
-
-  explicit constexpr FileDbId(uint64 file_db_id) : id(file_db_id) {
-  }
-  template <class T1, typename = std::enable_if_t<std::is_convertible<T1, uint64>::value>>
-  FileDbId(T1 file_db_id) = delete;
-
-  bool empty() const {
-    return id == 0;
-  }
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  uint64 get() const {
-    return id;
-  }
-
-  bool operator<(const FileDbId &other) const {
-    return id < other.id;
-  }
-  bool operator>(const FileDbId &other) const {
-    return id > other.id;
-  }
-
-  bool operator==(const FileDbId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const FileDbId &other) const {
-    return id != other.id;
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const FileDbId &file_db_id) {
-  return sb << "FileDbId{" << file_db_id.get() << "}";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileDownloadManager.cpp b/third-party/td/td/td/telegram/files/FileDownloadManager.cpp
deleted file mode 100644
index 07fe23d590..0000000000
--- a/third-party/td/td/td/telegram/files/FileDownloadManager.cpp
+++ /dev/null
@@ -1,205 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileDownloadManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-FileDownloadManager::Callback::~Callback() = default;
-
-FileDownloadManager::FileDownloadManager(unique_ptr<Callback> callback, ActorShared<> parent)
-    : callback_(std::move(callback)), parent_(std::move(parent)) {
-}
-
-void FileDownloadManager::start_up() {
-  if (G()->get_option_boolean("is_premium")) {
-    max_download_resource_limit_ *= 8;
-  }
-}
-
-ActorOwn<ResourceManager> &FileDownloadManager::get_download_resource_manager(bool is_small, DcId dc_id) {
-  auto &actor = is_small ? download_small_resource_manager_map_[dc_id] : download_resource_manager_map_[dc_id];
-  if (actor.empty()) {
-    actor = create_actor<ResourceManager>(
-        PSLICE() << "DownloadResourceManager " << tag("is_small", is_small) << tag("dc_id", dc_id),
-        max_download_resource_limit_, ResourceManager::Mode::Baseline);
-  }
-  return actor;
-}
-
-void FileDownloadManager::download(QueryId query_id, const FullRemoteFileLocation &remote_location,
-                                   const LocalFileLocation &local, int64 size, string name,
-                                   const FileEncryptionKey &encryption_key, bool need_search_file, int64 offset,
-                                   int64 limit, int8 priority) {
-  if (stop_flag_) {
-    return;
-  }
-  NodeId node_id = nodes_container_.create(Node());
-  Node *node = nodes_container_.get(node_id);
-  CHECK(node);
-  node->query_id_ = query_id;
-  auto callback = make_unique<FileDownloaderCallback>(actor_shared(this, node_id));
-  bool is_small = size < 20 * 1024;
-  node->downloader_ =
-      create_actor<FileDownloader>("Downloader", remote_location, local, size, std::move(name), encryption_key,
-                                   is_small, need_search_file, offset, limit, std::move(callback));
-  DcId dc_id = remote_location.is_web() ? G()->get_webfile_dc_id() : remote_location.get_dc_id();
-  auto &resource_manager = get_download_resource_manager(is_small, dc_id);
-  send_closure(resource_manager, &ResourceManager::register_worker,
-               ActorShared<FileLoaderActor>(node->downloader_.get(), static_cast<uint64>(-1)), priority);
-  bool is_inserted = query_id_to_node_id_.emplace(query_id, node_id).second;
-  CHECK(is_inserted);
-}
-
-void FileDownloadManager::update_priority(QueryId query_id, int8 priority) {
-  if (stop_flag_) {
-    return;
-  }
-  auto it = query_id_to_node_id_.find(query_id);
-  if (it == query_id_to_node_id_.end()) {
-    return;
-  }
-  auto node = nodes_container_.get(it->second);
-  if (node == nullptr || node->downloader_.empty()) {
-    return;
-  }
-  send_closure(node->downloader_, &FileLoaderActor::update_priority, priority);
-}
-
-void FileDownloadManager::from_bytes(QueryId query_id, FileType type, BufferSlice bytes, string name) {
-  if (stop_flag_) {
-    return;
-  }
-  NodeId node_id = nodes_container_.create(Node());
-  Node *node = nodes_container_.get(node_id);
-  CHECK(node);
-  node->query_id_ = query_id;
-  auto callback = make_unique<FileFromBytesCallback>(actor_shared(this, node_id));
-  node->from_bytes_ =
-      create_actor<FileFromBytes>("FromBytes", type, std::move(bytes), std::move(name), std::move(callback));
-  bool is_inserted = query_id_to_node_id_.emplace(query_id, node_id).second;
-  CHECK(is_inserted);
-}
-
-void FileDownloadManager::cancel(QueryId query_id) {
-  if (stop_flag_) {
-    return;
-  }
-  auto it = query_id_to_node_id_.find(query_id);
-  if (it == query_id_to_node_id_.end()) {
-    return;
-  }
-  on_error_impl(it->second, Status::Error(-1, "Canceled"));
-}
-
-void FileDownloadManager::update_downloaded_part(QueryId query_id, int64 offset, int64 limit) {
-  if (stop_flag_) {
-    return;
-  }
-  auto it = query_id_to_node_id_.find(query_id);
-  if (it == query_id_to_node_id_.end()) {
-    return;
-  }
-  auto node = nodes_container_.get(it->second);
-  if (node == nullptr || node->downloader_.empty()) {
-    return;
-  }
-  send_closure(node->downloader_, &FileDownloader::update_downloaded_part, offset, limit, max_download_resource_limit_);
-}
-
-void FileDownloadManager::hangup() {
-  nodes_container_.for_each([](auto query_id, auto &node) {
-    node.downloader_.reset();
-    node.from_bytes_.reset();
-  });
-  for (auto &it : download_resource_manager_map_) {
-    it.second.reset();
-  }
-  for (auto &it : download_small_resource_manager_map_) {
-    it.second.reset();
-  }
-  stop_flag_ = true;
-  try_stop();
-}
-
-void FileDownloadManager::on_start_download() {
-  auto node_id = get_link_token();
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_start_download(node->query_id_);
-  }
-}
-
-void FileDownloadManager::on_partial_download(PartialLocalFileLocation partial_local, int64 size) {
-  auto node_id = get_link_token();
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_partial_download(node->query_id_, std::move(partial_local), size);
-  }
-}
-
-void FileDownloadManager::on_ok_download(FullLocalFileLocation local, int64 size, bool is_new) {
-  auto node_id = get_link_token();
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_download_ok(node->query_id_, std::move(local), size, is_new);
-  }
-  close_node(node_id);
-}
-
-void FileDownloadManager::on_error(Status status) {
-  auto node_id = get_link_token();
-  on_error_impl(node_id, std::move(status));
-}
-
-void FileDownloadManager::on_error_impl(NodeId node_id, Status status) {
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    status.ignore();
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_error(node->query_id_, std::move(status));
-  }
-  close_node(node_id);
-}
-
-void FileDownloadManager::hangup_shared() {
-  auto node_id = get_link_token();
-  on_error_impl(node_id, Status::Error(-1, "Canceled"));
-}
-
-void FileDownloadManager::try_stop() {
-  if (stop_flag_ && nodes_container_.empty()) {
-    stop();
-  }
-}
-
-void FileDownloadManager::close_node(NodeId node_id) {
-  auto node = nodes_container_.get(node_id);
-  CHECK(node);
-  query_id_to_node_id_.erase(node->query_id_);
-  nodes_container_.erase(node_id);
-  try_stop();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileDownloadManager.h b/third-party/td/td/td/telegram/files/FileDownloadManager.h
deleted file mode 100644
index 922e93bc3e..0000000000
--- a/third-party/td/td/td/telegram/files/FileDownloadManager.h
+++ /dev/null
@@ -1,128 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileDownloader.h"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileFromBytes.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/files/ResourceManager.h"
-#include "td/telegram/net/DcId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/Status.h"
-
-#include <map>
-
-namespace td {
-
-class FileDownloadManager final : public Actor {
- public:
-  using QueryId = uint64;
-
-  class Callback {
-   public:
-    virtual ~Callback();
-    virtual void on_start_download(QueryId query_id) = 0;
-    virtual void on_partial_download(QueryId query_id, PartialLocalFileLocation partial_local, int64 size) = 0;
-    virtual void on_download_ok(QueryId query_id, FullLocalFileLocation local, int64 size, bool is_new) = 0;
-    virtual void on_error(QueryId query_id, Status status) = 0;
-  };
-
-  FileDownloadManager(unique_ptr<Callback> callback, ActorShared<> parent);
-
-  void download(QueryId query_id, const FullRemoteFileLocation &remote_location, const LocalFileLocation &local,
-                int64 size, string name, const FileEncryptionKey &encryption_key, bool need_search_file, int64 offset,
-                int64 limit, int8 priority);
-
-  void update_priority(QueryId query_id, int8 priority);
-
-  void from_bytes(QueryId query_id, FileType type, BufferSlice bytes, string name);
-
-  void cancel(QueryId query_id);
-
-  void update_downloaded_part(QueryId query_id, int64 offset, int64 limit);
-
- private:
-  struct Node {
-    QueryId query_id_;
-    ActorOwn<FileDownloader> downloader_;
-    ActorOwn<FileFromBytes> from_bytes_;
-  };
-  using NodeId = uint64;
-
-  std::map<DcId, ActorOwn<ResourceManager>> download_resource_manager_map_;
-  std::map<DcId, ActorOwn<ResourceManager>> download_small_resource_manager_map_;
-
-  Container<Node> nodes_container_;
-  unique_ptr<Callback> callback_;
-  ActorShared<> parent_;
-  std::map<QueryId, NodeId> query_id_to_node_id_;
-  int64 max_download_resource_limit_ = 1 << 21;
-  bool stop_flag_ = false;
-
-  void start_up() final;
-  void hangup() final;
-  void hangup_shared() final;
-
-  void close_node(NodeId node_id);
-
-  void try_stop();
-
-  ActorOwn<ResourceManager> &get_download_resource_manager(bool is_small, DcId dc_id);
-
-  void on_start_download();
-  void on_partial_download(PartialLocalFileLocation partial_local, int64 size);
-  void on_ok_download(FullLocalFileLocation local, int64 size, bool is_new);
-  void on_error(Status status);
-  void on_error_impl(NodeId node_id, Status status);
-
-  class FileDownloaderCallback final : public FileDownloader::Callback {
-   public:
-    explicit FileDownloaderCallback(ActorShared<FileDownloadManager> actor_id) : actor_id_(std::move(actor_id)) {
-    }
-
-   private:
-    ActorShared<FileDownloadManager> actor_id_;
-
-    void on_start_download() final {
-      send_closure(actor_id_, &FileDownloadManager::on_start_download);
-    }
-    void on_partial_download(PartialLocalFileLocation partial_local, int64 size) final {
-      send_closure(actor_id_, &FileDownloadManager::on_partial_download, std::move(partial_local), size);
-    }
-    void on_ok(FullLocalFileLocation full_local, int64 size, bool is_new) final {
-      send_closure(std::move(actor_id_), &FileDownloadManager::on_ok_download, std::move(full_local), size, is_new);
-    }
-    void on_error(Status status) final {
-      send_closure(std::move(actor_id_), &FileDownloadManager::on_error, std::move(status));
-    }
-  };
-
-  class FileFromBytesCallback final : public FileFromBytes::Callback {
-   public:
-    explicit FileFromBytesCallback(ActorShared<FileDownloadManager> actor_id) : actor_id_(std::move(actor_id)) {
-    }
-
-   private:
-    ActorShared<FileDownloadManager> actor_id_;
-
-    void on_ok(const FullLocalFileLocation &full_local, int64 size) final {
-      send_closure(std::move(actor_id_), &FileDownloadManager::on_ok_download, full_local, size, true);
-    }
-    void on_error(Status status) final {
-      send_closure(std::move(actor_id_), &FileDownloadManager::on_error, std::move(status));
-    }
-  };
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileDownloader.cpp b/third-party/td/td/td/telegram/files/FileDownloader.cpp
deleted file mode 100644
index 5ccf9e9102..0000000000
--- a/third-party/td/td/td/telegram/files/FileDownloader.cpp
+++ /dev/null
@@ -1,742 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileDownloader.h"
-
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileLoaderUtils.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/SecureStorage.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UniqueId.h"
-
-#include "td/utils/as.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/UInt.h"
-
-#include <tuple>
-
-namespace td {
-
-FileDownloader::FileDownloader(const FullRemoteFileLocation &remote, const LocalFileLocation &local, int64 size,
-                               string name, const FileEncryptionKey &encryption_key, bool is_small,
-                               bool need_search_file, int64 offset, int64 limit, unique_ptr<Callback> callback)
-    : remote_(remote)
-    , local_(local)
-    , size_(size)
-    , name_(std::move(name))
-    , encryption_key_(encryption_key)
-    , callback_(std::move(callback))
-    , is_small_(is_small)
-    , need_search_file_(need_search_file)
-    , ordered_flag_(encryption_key_.is_secret())
-    , offset_(offset)
-    , limit_(limit) {
-  if (!encryption_key.empty()) {
-    CHECK(offset_ == 0);
-  }
-}
-
-void FileDownloader::on_error(Status status) {
-  fd_.close();
-  stop_flag_ = true;
-  callback_->on_error(std::move(status));
-}
-
-Result<bool> FileDownloader::should_restart_part(Part part, const NetQueryPtr &net_query) {
-  // Check if we should use CDN or reupload file to CDN
-
-  if (net_query->is_error()) {
-    if (net_query->error().message() == "FILE_TOKEN_INVALID") {
-      use_cdn_ = false;
-      return true;
-    }
-    if (net_query->error().message() == "REQUEST_TOKEN_INVALID") {
-      return true;
-    }
-    return false;
-  }
-
-  switch (narrow_cast<QueryType>(UniqueId::extract_key(net_query->id()))) {
-    case QueryType::Default: {
-      if (net_query->ok_tl_constructor() == telegram_api::upload_fileCdnRedirect::ID) {
-        TRY_RESULT(file_base, fetch_result<telegram_api::upload_getFile>(net_query->ok()));
-        CHECK(file_base->get_id() == telegram_api::upload_fileCdnRedirect::ID);
-        auto file = move_tl_object_as<telegram_api::upload_fileCdnRedirect>(file_base);
-        LOG(DEBUG) << "Downloading of part " << part.id << " was redirected to " << oneline(to_string(file));
-
-        auto new_cdn_file_token = file->file_token_.as_slice();
-        if (cdn_file_token_ == new_cdn_file_token) {
-          return true;
-        }
-
-        use_cdn_ = true;
-        need_check_ = true;
-        cdn_file_token_generation_++;
-        cdn_file_token_ = new_cdn_file_token.str();
-        cdn_dc_id_ = DcId::external(file->dc_id_);
-        cdn_encryption_key_ = file->encryption_key_.as_slice().str();
-        cdn_encryption_iv_ = file->encryption_iv_.as_slice().str();
-        add_hash_info(file->file_hashes_);
-        if (cdn_encryption_iv_.size() != 16 || cdn_encryption_key_.size() != 32) {
-          return Status::Error("Wrong ctr key or iv size");
-        }
-
-        return true;
-      }
-      return false;
-    }
-    case QueryType::ReuploadCDN: {
-      TRY_RESULT(file_hashes, fetch_result<telegram_api::upload_reuploadCdnFile>(net_query->ok()));
-      add_hash_info(file_hashes);
-      LOG(DEBUG) << "Part " << part.id << " was reuploaded to CDN";
-      return true;
-    }
-    case QueryType::CDN: {
-      if (net_query->ok_tl_constructor() == telegram_api::upload_cdnFileReuploadNeeded::ID) {
-        TRY_RESULT(file_base, fetch_result<telegram_api::upload_getCdnFile>(net_query->ok()));
-        CHECK(file_base->get_id() == telegram_api::upload_cdnFileReuploadNeeded::ID);
-        auto file = move_tl_object_as<telegram_api::upload_cdnFileReuploadNeeded>(file_base);
-        LOG(DEBUG) << "Part " << part.id << " must be reuploaded to " << oneline(to_string(file));
-        cdn_part_reupload_token_[part.id] = file->request_token_.as_slice().str();
-        return true;
-      }
-      auto it = cdn_part_file_token_generation_.find(part.id);
-      CHECK(it != cdn_part_file_token_generation_.end());
-      if (it->second != cdn_file_token_generation_) {
-        LOG(DEBUG) << "Receive part " << part.id << " with an old file_token";
-        return true;
-      }
-      return false;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  return false;
-}
-
-Result<NetQueryPtr> FileDownloader::start_part(Part part, int32 part_count, int64 streaming_offset) {
-  if (encryption_key_.is_secret()) {
-    part.size = (part.size + 15) & ~15;  // fix for last part
-  }
-  // auto size = part.size;
-  //// sometimes we can ask more than server has, just to check size
-  // if (size < parts_manager_.get_part_size()) {
-  // size = min(size + 16, parts_manager_.get_part_size());
-  // LOG(INFO) << "Ask " << size << " instead of " << part.size;
-  //}
-  auto size = parts_manager_.get_part_size();
-  CHECK(part.size <= size);
-
-  callback_->on_start_download();
-
-  auto net_query_type = is_small_ ? NetQuery::Type::DownloadSmall : NetQuery::Type::Download;
-  NetQueryPtr net_query;
-  if (!use_cdn_) {
-    bool cdn_supported = false;
-#if !TD_EMSCRIPTEN
-    // CDN is supported, unless we use domains instead of IPs from a browser
-    if (streaming_offset == 0) {
-      cdn_supported = true;
-    }
-#endif
-    DcId dc_id = remote_.is_web() ? G()->get_webfile_dc_id() : remote_.get_dc_id();
-    auto unique_id = UniqueId::next(UniqueId::Type::Default, static_cast<uint8>(QueryType::Default));
-    net_query = remote_.is_web()
-                    ? G()->net_query_creator().create(
-                          unique_id, nullptr,
-                          telegram_api::upload_getWebFile(remote_.as_input_web_file_location(),
-                                                          narrow_cast<int32>(part.offset), narrow_cast<int32>(size)),
-                          {}, dc_id, net_query_type, NetQuery::AuthFlag::On)
-                    : G()->net_query_creator().create(
-                          unique_id, nullptr,
-                          telegram_api::upload_getFile(0, false, cdn_supported, remote_.as_input_file_location(),
-                                                       part.offset, narrow_cast<int32>(size)),
-                          {}, dc_id, net_query_type, NetQuery::AuthFlag::On);
-  } else {
-    if (remote_.is_web()) {
-      return Status::Error("Can't download web file from CDN");
-    }
-    auto it = cdn_part_reupload_token_.find(part.id);
-    if (it == cdn_part_reupload_token_.end()) {
-      auto query = telegram_api::upload_getCdnFile(BufferSlice(cdn_file_token_), part.offset, narrow_cast<int32>(size));
-      cdn_part_file_token_generation_[part.id] = cdn_file_token_generation_;
-      net_query =
-          G()->net_query_creator().create(UniqueId::next(UniqueId::Type::Default, static_cast<uint8>(QueryType::CDN)),
-                                          nullptr, query, {}, cdn_dc_id_, net_query_type, NetQuery::AuthFlag::Off);
-    } else {
-      auto query = telegram_api::upload_reuploadCdnFile(BufferSlice(cdn_file_token_), BufferSlice(it->second));
-      net_query = G()->net_query_creator().create(
-          UniqueId::next(UniqueId::Type::Default, static_cast<uint8>(QueryType::ReuploadCDN)), nullptr, query, {},
-          remote_.get_dc_id(), net_query_type, NetQuery::AuthFlag::On);
-      cdn_part_reupload_token_.erase(it);
-    }
-  }
-  net_query->file_type_ = narrow_cast<int32>(remote_.file_type_);
-  return std::move(net_query);
-}
-
-Status FileDownloader::check_net_query(NetQueryPtr &net_query) {
-  if (net_query->is_error()) {
-    auto error = net_query->move_as_error();
-    if (FileReferenceManager::is_file_reference_error(error)) {
-      VLOG(file_references) << "Receive " << error << " for being downloaded file";
-      error = Status::Error(error.code(),
-                            PSLICE() << error.message() << "#BASE64" << base64_encode(remote_.get_file_reference()));
-    }
-    return error;
-  }
-  return Status::OK();
-}
-
-Result<size_t> FileDownloader::process_part(Part part, NetQueryPtr net_query) {
-  TRY_STATUS(check_net_query(net_query));
-
-  BufferSlice bytes;
-  bool need_cdn_decrypt = false;
-  auto query_type = narrow_cast<QueryType>(UniqueId::extract_key(net_query->id()));
-  switch (query_type) {
-    case QueryType::Default: {
-      if (remote_.is_web()) {
-        TRY_RESULT(file, fetch_result<telegram_api::upload_getWebFile>(std::move(net_query)));
-        bytes = std::move(file->bytes_);
-      } else {
-        TRY_RESULT(file_base, fetch_result<telegram_api::upload_getFile>(std::move(net_query)));
-        CHECK(file_base->get_id() == telegram_api::upload_file::ID);
-        auto file = move_tl_object_as<telegram_api::upload_file>(file_base);
-        LOG(DEBUG) << "Receive part " << part.id << ": " << to_string(file);
-        bytes = std::move(file->bytes_);
-      }
-      break;
-    }
-    case QueryType::CDN: {
-      TRY_RESULT(file_base, fetch_result<telegram_api::upload_getCdnFile>(std::move(net_query)));
-      CHECK(file_base->get_id() == telegram_api::upload_cdnFile::ID);
-      auto file = move_tl_object_as<telegram_api::upload_cdnFile>(file_base);
-      LOG(DEBUG) << "Receive part " << part.id << " from CDN: " << to_string(file);
-      bytes = std::move(file->bytes_);
-      need_cdn_decrypt = true;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-
-  auto padded_size = part.size;
-  if (encryption_key_.is_secret()) {
-    padded_size = (part.size + 15) & ~15;
-  }
-  if (bytes.size() > padded_size) {
-    return Status::Error("Part size is more than requested");
-  }
-  if (bytes.empty()) {
-    return 0;
-  }
-
-  // Encryption
-  if (need_cdn_decrypt) {
-    CHECK(part.offset % 16 == 0);
-    auto offset = narrow_cast<uint32>(part.offset / 16);
-    offset =
-        ((offset & 0xff) << 24) | ((offset & 0xff00) << 8) | ((offset & 0xff0000) >> 8) | ((offset & 0xff000000) >> 24);
-
-    AesCtrState ctr_state;
-    string iv = cdn_encryption_iv_;
-    as<uint32>(&iv[12]) = offset;
-    ctr_state.init(cdn_encryption_key_, iv);
-    ctr_state.decrypt(bytes.as_slice(), bytes.as_mutable_slice());
-  }
-  if (encryption_key_.is_secret()) {
-    LOG_CHECK(next_part_ == part.id) << tag("expected part.id", next_part_) << "!=" << tag("part.id", part.id);
-    CHECK(!next_part_stop_);
-    next_part_++;
-    if (part.size % 16 != 0) {
-      next_part_stop_ = true;
-    }
-    aes_ige_decrypt(as_slice(encryption_key_.key()), as_mutable_slice(encryption_key_.mutable_iv()), bytes.as_slice(),
-                    bytes.as_mutable_slice());
-  }
-
-  auto slice = bytes.as_slice().substr(0, part.size);
-  TRY_STATUS(acquire_fd());
-  LOG(INFO) << "Receive " << slice.size() << " bytes at offset " << part.offset << " for \"" << path_ << '"';
-  TRY_RESULT(written, fd_.pwrite(slice, part.offset));
-  LOG(INFO) << "Written " << written << " bytes";
-  // may write less than part.size, when size of downloadable file is unknown
-  if (written != slice.size()) {
-    return Status::Error("Failed to save file part to the file");
-  }
-  return written;
-}
-
-void FileDownloader::on_progress() {
-  if (parts_manager_.ready()) {
-    // do not send partial location. will lead to wrong local_size
-    return;
-  }
-  auto ready_size = parts_manager_.get_ready_size();
-  if (ready_size == 0 || path_.empty()) {
-    return;
-  }
-  auto part_size = static_cast<int32>(parts_manager_.get_part_size());
-  auto size = parts_manager_.get_size_or_zero();
-  if (encryption_key_.empty() || encryption_key_.is_secure()) {
-    callback_->on_partial_download(
-        PartialLocalFileLocation{remote_.file_type_, part_size, path_, "", parts_manager_.get_bitmask(), ready_size},
-        size);
-  } else if (encryption_key_.is_secret()) {
-    UInt256 iv;
-    auto ready_part_count = parts_manager_.get_ready_prefix_count();
-    if (ready_part_count == next_part_) {
-      iv = encryption_key_.mutable_iv();
-    } else {
-      LOG(FATAL) << tag("ready_part_count", ready_part_count) << tag("next_part", next_part_);
-    }
-    callback_->on_partial_download(PartialLocalFileLocation{remote_.file_type_, part_size, path_, as_slice(iv).str(),
-                                                            parts_manager_.get_bitmask(), ready_size},
-                                   size);
-  } else {
-    UNREACHABLE();
-  }
-}
-
-Status FileDownloader::process_check_query(NetQueryPtr net_query) {
-  has_hash_query_ = false;
-  TRY_STATUS(check_net_query(net_query));
-  TRY_RESULT(file_hashes, fetch_result<telegram_api::upload_getFileHashes>(std::move(net_query)));
-  add_hash_info(file_hashes);
-  return Status::OK();
-}
-
-Status FileDownloader::check_loop(int64 checked_prefix_size, int64 ready_prefix_size, bool is_ready) {
-  if (!need_check_) {
-    return Status::OK();
-  }
-  SCOPE_EXIT {
-    try_release_fd();
-  };
-  bool is_changed = false;
-  vector<NetQueryPtr> queries;
-  while (checked_prefix_size < ready_prefix_size) {
-    //LOG(ERROR) << "NEED TO CHECK: " << checked_prefix_size << "->" << ready_prefix_size - checked_prefix_size;
-    HashInfo search_info;
-    search_info.offset = checked_prefix_size;
-    auto it = hash_info_.upper_bound(search_info);
-    if (it != hash_info_.begin()) {
-      --it;
-    }
-    if (it != hash_info_.end() && it->offset <= checked_prefix_size &&
-        it->offset + narrow_cast<int64>(it->size) > checked_prefix_size) {
-      int64 begin_offset = it->offset;
-      int64 end_offset = it->offset + narrow_cast<int64>(it->size);
-      if (ready_prefix_size < end_offset) {
-        if (!is_ready) {
-          break;
-        }
-        end_offset = ready_prefix_size;
-      }
-      auto size = narrow_cast<size_t>(end_offset - begin_offset);
-      auto slice = BufferSlice(size);
-      TRY_STATUS(acquire_fd());
-      TRY_RESULT(read_size, fd_.pread(slice.as_mutable_slice(), begin_offset));
-      if (size != read_size) {
-        return Status::Error("Failed to read file to check hash");
-      }
-      string hash(32, ' ');
-      sha256(slice.as_slice(), hash);
-
-      if (hash != it->hash) {
-        if (only_check_) {
-          return Status::Error("FILE_DOWNLOAD_RESTART");
-        }
-        return Status::Error("Hash mismatch");
-      }
-
-      checked_prefix_size = end_offset;
-      is_changed = true;
-      continue;
-    }
-    if (!has_hash_query_) {
-      has_hash_query_ = true;
-      auto query = telegram_api::upload_getFileHashes(remote_.as_input_file_location(), checked_prefix_size);
-      auto net_query_type = is_small_ ? NetQuery::Type::DownloadSmall : NetQuery::Type::Download;
-      auto net_query = G()->net_query_creator().create(query, {}, remote_.get_dc_id(), net_query_type);
-      queries.push_back(std::move(net_query));
-      break;
-    }
-    // Should fail?
-    break;
-  }
-
-  if (is_changed) {
-    on_progress();
-  }
-  for (auto &query : queries) {
-    G()->net_query_dispatcher().dispatch_with_callback(
-        std::move(query), actor_shared(this, UniqueId::next(UniqueId::Type::Default, COMMON_QUERY_KEY)));
-  }
-  if (need_check_) {
-    parts_manager_.set_need_check();
-    parts_manager_.set_checked_prefix_size(checked_prefix_size);
-  }
-
-  return Status::OK();
-}
-
-void FileDownloader::add_hash_info(const std::vector<telegram_api::object_ptr<telegram_api::fileHash>> &hashes) {
-  for (auto &hash : hashes) {
-    //LOG(ERROR) << "ADD HASH " << hash->offset_ << "->" << hash->limit_;
-    HashInfo hash_info;
-    hash_info.size = hash->limit_;
-    hash_info.offset = hash->offset_;
-    hash_info.hash = hash->hash_.as_slice().str();
-    hash_info_.insert(std::move(hash_info));
-  }
-}
-
-void FileDownloader::try_release_fd() {
-  if (!keep_fd_ && !fd_.empty()) {
-    fd_.close();
-  }
-}
-
-Status FileDownloader::acquire_fd() {
-  if (fd_.empty()) {
-    if (path_.empty()) {
-      TRY_RESULT_ASSIGN(std::tie(fd_, path_), open_temp_file(remote_.file_type_));
-    } else {
-      TRY_RESULT_ASSIGN(fd_, FileFd::open(path_, (only_check_ ? 0 : FileFd::Write) | FileFd::Read));
-    }
-  }
-  return Status::OK();
-}
-
-void FileDownloader::set_resource_manager(ActorShared<ResourceManager> resource_manager) {
-  resource_manager_ = std::move(resource_manager);
-  send_closure(resource_manager_, &ResourceManager::update_resources, resource_state_);
-}
-
-void FileDownloader::update_priority(int8 priority) {
-  send_closure(resource_manager_, &ResourceManager::update_priority, priority);
-}
-
-void FileDownloader::update_resources(const ResourceState &other) {
-  resource_state_.update_slave(other);
-  VLOG(file_loader) << "Update resources " << resource_state_;
-  loop();
-}
-
-void FileDownloader::hangup() {
-  if (delay_dispatcher_.empty()) {
-    stop();
-  } else {
-    delay_dispatcher_.reset();
-  }
-}
-
-void FileDownloader::hangup_shared() {
-  if (get_link_token() == 1) {
-    stop();
-  }
-}
-
-void FileDownloader::update_downloaded_part(int64 offset, int64 limit, int64 max_resource_limit) {
-  if (parts_manager_.get_streaming_offset() != offset) {
-    auto begin_part_id = parts_manager_.set_streaming_offset(offset, limit);
-    auto new_end_part_id = limit <= 0 ? parts_manager_.get_part_count()
-                                      : narrow_cast<int32>((offset + limit - 1) / parts_manager_.get_part_size()) + 1;
-    auto max_parts = narrow_cast<int32>(max_resource_limit / parts_manager_.get_part_size());
-    auto end_part_id = begin_part_id + td::min(max_parts, new_end_part_id - begin_part_id);
-    VLOG(file_loader) << "Protect parts " << begin_part_id << " ... " << end_part_id - 1;
-    for (auto &it : part_map_) {
-      if (!it.second.second.empty() && !(begin_part_id <= it.second.first.id && it.second.first.id < end_part_id)) {
-        VLOG(file_loader) << "Cancel part " << it.second.first.id;
-        it.second.second.reset();  // cancel_query(it.second.second);
-      }
-    }
-  } else {
-    parts_manager_.set_streaming_limit(limit);
-  }
-  update_estimated_limit();
-  loop();
-}
-
-void FileDownloader::start_up() {
-  if (local_.type() == LocalFileLocation::Type::Full) {
-    return on_error(Status::Error("File is already downloaded"));
-  }
-  if (encryption_key_.is_secure() && !encryption_key_.has_value_hash()) {
-    LOG(ERROR) << "Can't download Secure file with unknown value_hash";
-  }
-  if (remote_.file_type_ == FileType::SecureEncrypted) {
-    size_ = 0;
-  }
-  int32 part_size = 0;
-  Bitmask bitmask{Bitmask::Ones{}, 0};
-  if (local_.type() == LocalFileLocation::Type::Partial) {
-    const auto &partial = local_.partial();
-    path_ = partial.path_;
-    auto result_fd = FileFd::open(path_, FileFd::Write | FileFd::Read);
-    // TODO: check timestamps..
-    if (result_fd.is_ok()) {
-      if ((!encryption_key_.is_secret() || partial.iv_.size() == 32) && partial.part_size_ >= 0 &&
-          partial.part_size_ <= (1 << 20) && (partial.part_size_ & (partial.part_size_ - 1)) == 0) {
-        bitmask = Bitmask(Bitmask::Decode{}, partial.ready_bitmask_);
-        if (encryption_key_.is_secret()) {
-          encryption_key_.mutable_iv() = as<UInt256>(partial.iv_.data());
-          next_part_ = narrow_cast<int32>(bitmask.get_ready_parts(0));
-        }
-        fd_ = result_fd.move_as_ok();
-        part_size = static_cast<int32>(partial.part_size_);
-      } else {
-        LOG(ERROR) << "Have invalid " << partial;
-      }
-    }
-  }
-  if (need_search_file_ && fd_.empty() && size_ > 0 && encryption_key_.empty() && !remote_.is_web()) {
-    auto r_path = search_file(remote_.file_type_, name_, size_);
-    if (r_path.is_ok()) {
-      auto r_fd = FileFd::open(r_path.ok(), FileFd::Read);
-      if (r_fd.is_ok()) {
-        path_ = r_path.move_as_ok();
-        fd_ = r_fd.move_as_ok();
-        need_check_ = true;
-        only_check_ = true;
-        part_size = 128 * (1 << 10);
-        bitmask = Bitmask{Bitmask::Ones{}, (size_ + part_size - 1) / part_size};
-        LOG(INFO) << "Check hash of local file " << path_;
-      }
-    }
-  }
-  try_release_fd();
-
-  auto ready_parts = bitmask.as_vector();
-  auto status = parts_manager_.init(size_, size_, true, part_size, ready_parts, false, false);
-  LOG(DEBUG) << "Start downloading a file of size " << size_ << ", part size " << part_size << " and "
-             << ready_parts.size() << " ready parts: " << status;
-  if (status.is_error()) {
-    return on_error(std::move(status));
-  }
-  if (only_check_) {
-    parts_manager_.set_checked_prefix_size(0);
-  }
-  parts_manager_.set_streaming_offset(offset_, limit_);
-  if (ordered_flag_) {
-    ordered_parts_ = OrderedEventsProcessor<std::pair<Part, NetQueryPtr>>(parts_manager_.get_ready_prefix_count());
-  }
-  auto file_type = get_main_file_type(remote_.file_type_);
-  if (!is_small_ &&
-      (file_type == FileType::VideoNote || file_type == FileType::Document || file_type == FileType::VoiceNote ||
-       file_type == FileType::Audio || file_type == FileType::Video || file_type == FileType::Animation ||
-       file_type == FileType::VideoStory || file_type == FileType::SelfDestructingVideo ||
-       file_type == FileType::SelfDestructingVideoNote || file_type == FileType::SelfDestructingVoiceNote ||
-       (file_type == FileType::Encrypted && size_ > (1 << 20)))) {
-    delay_dispatcher_ = create_actor<DelayDispatcher>("DelayDispatcher", 0.003, actor_shared(this, 1));
-    next_delay_ = 0.05;
-  }
-  resource_state_.set_unit_size(parts_manager_.get_part_size());
-  update_estimated_limit();
-  on_progress();
-  yield();
-}
-
-void FileDownloader::loop() {
-  if (stop_flag_) {
-    return;
-  }
-  auto status = do_loop();
-  if (status.is_error()) {
-    if (status.code() == -1) {
-      return;
-    }
-    return on_error(std::move(status));
-  }
-}
-
-Status FileDownloader::do_loop() {
-  TRY_STATUS(check_loop(parts_manager_.get_checked_prefix_size(), parts_manager_.get_unchecked_ready_prefix_size(),
-                        parts_manager_.unchecked_ready()));
-
-  if (parts_manager_.may_finish()) {
-    TRY_STATUS(parts_manager_.finish());
-    fd_.close();
-    auto size = parts_manager_.get_size();
-    if (encryption_key_.is_secure()) {
-      TRY_RESULT(file_path, open_temp_file(remote_.file_type_));
-      string tmp_path;
-      std::tie(std::ignore, tmp_path) = std::move(file_path);
-      TRY_STATUS(secure_storage::decrypt_file(encryption_key_.secret(), encryption_key_.value_hash(), path_, tmp_path));
-      unlink(path_).ignore();
-      path_ = std::move(tmp_path);
-      TRY_RESULT(path_stat, stat(path_));
-      size = path_stat.size_;
-    }
-    string path;
-    if (only_check_) {
-      path = path_;
-    } else {
-      TRY_RESULT_ASSIGN(path, create_from_temp(remote_.file_type_, path_, name_));
-    }
-    callback_->on_ok(FullLocalFileLocation(remote_.file_type_, std::move(path), 0), size, !only_check_);
-
-    LOG(INFO) << "Bad download order rate: "
-              << (debug_total_parts_ == 0 ? 0.0 : 100.0 * debug_bad_part_order_ / debug_total_parts_) << "% "
-              << debug_bad_part_order_ << '/' << debug_total_parts_ << ' ' << debug_bad_parts_;
-    stop_flag_ = true;
-    return Status::OK();
-  }
-
-  while (true) {
-    if (resource_state_.unused() < narrow_cast<int64>(parts_manager_.get_part_size())) {
-      VLOG(file_loader) << "Receive only " << resource_state_.unused() << " resource";
-      break;
-    }
-    TRY_RESULT(part, parts_manager_.start_part());
-    if (part.size == 0) {
-      break;
-    }
-    VLOG(file_loader) << "Start part " << tag("id", part.id) << tag("size", part.size);
-    resource_state_.start_use(static_cast<int64>(part.size));
-
-    TRY_RESULT(query, start_part(part, parts_manager_.get_part_count(), parts_manager_.get_streaming_offset()));
-    uint64 unique_id = UniqueId::next();
-    part_map_[unique_id] = std::make_pair(part, query->cancel_slot_.get_signal_new());
-
-    auto callback = actor_shared(this, unique_id);
-    if (delay_dispatcher_.empty()) {
-      G()->net_query_dispatcher().dispatch_with_callback(std::move(query), std::move(callback));
-    } else {
-      query->debug("sent to DelayDispatcher");
-      send_closure(delay_dispatcher_, &DelayDispatcher::send_with_callback_and_delay, std::move(query),
-                   std::move(callback), next_delay_);
-      next_delay_ = max(next_delay_ * 0.8, 0.003);
-    }
-  }
-  return Status::OK();
-}
-
-void FileDownloader::tear_down() {
-  for (auto &it : part_map_) {
-    it.second.second.reset();  // cancel_query(it.second.second);
-  }
-  ordered_parts_.clear([](auto &&part) { part.second->clear(); });
-  if (!delay_dispatcher_.empty()) {
-    send_closure(std::move(delay_dispatcher_), &DelayDispatcher::close_silent);
-  }
-}
-
-void FileDownloader::update_estimated_limit() {
-  if (stop_flag_) {
-    return;
-  }
-  auto estimated_extra = parts_manager_.get_estimated_extra();
-  resource_state_.update_estimated_limit(estimated_extra);
-  VLOG(file_loader) << "Update estimated limit " << estimated_extra;
-  if (!resource_manager_.empty()) {
-    keep_fd_ = narrow_cast<uint64>(resource_state_.active_limit()) >= parts_manager_.get_part_size();
-    try_release_fd();
-    send_closure(resource_manager_, &ResourceManager::update_resources, resource_state_);
-  }
-}
-
-void FileDownloader::on_result(NetQueryPtr query) {
-  if (stop_flag_) {
-    return;
-  }
-  auto unique_id = get_link_token();
-  if (UniqueId::extract_key(unique_id) == COMMON_QUERY_KEY) {
-    auto status = process_check_query(std::move(query));
-    if (status.is_error()) {
-      on_error(std::move(status));
-    } else {
-      loop();
-    }
-    return;
-  }
-  auto it = part_map_.find(unique_id);
-  if (it == part_map_.end()) {
-    LOG(WARNING) << "Receive result for unknown part";
-    return;
-  }
-
-  Part part = it->second.first;
-  it->second.second.release();
-  CHECK(query->is_ready());
-  part_map_.erase(it);
-
-  bool next = false;
-  auto status = [&] {
-    TRY_RESULT(should_restart, should_restart_part(part, query));
-    if (query->is_error() && query->error().code() == NetQuery::Error::Canceled) {
-      should_restart = true;
-    }
-    if (should_restart) {
-      VLOG(file_loader) << "Restart part " << tag("id", part.id) << tag("size", part.size);
-      resource_state_.stop_use(static_cast<int64>(part.size));
-      parts_manager_.on_part_failed(part.id);
-    } else {
-      next = true;
-    }
-    return Status::OK();
-  }();
-  if (status.is_error()) {
-    return on_error(std::move(status));
-  }
-
-  if (next) {
-    if (ordered_flag_) {
-      auto seq_no = part.id;
-      ordered_parts_.add(
-          seq_no, std::make_pair(part, std::move(query)),
-          [this](uint64 seq_no, std::pair<Part, NetQueryPtr> &&p) { on_part_query(p.first, std::move(p.second)); });
-    } else {
-      on_part_query(part, std::move(query));
-    }
-  }
-  update_estimated_limit();
-  loop();
-}
-
-void FileDownloader::on_part_query(Part part, NetQueryPtr query) {
-  if (stop_flag_) {
-    // important for secret files
-    return;
-  }
-  auto status = try_on_part_query(part, std::move(query));
-  if (status.is_error()) {
-    on_error(std::move(status));
-  }
-}
-
-Status FileDownloader::try_on_part_query(Part part, NetQueryPtr query) {
-  TRY_RESULT(size, process_part(part, std::move(query)));
-  VLOG(file_loader) << "Ok part " << tag("id", part.id) << tag("size", part.size);
-  resource_state_.stop_use(static_cast<int64>(part.size));
-  auto old_ready_prefix_count = parts_manager_.get_unchecked_ready_prefix_count();
-  TRY_STATUS(parts_manager_.on_part_ok(part.id, part.size, size));
-  auto new_ready_prefix_count = parts_manager_.get_unchecked_ready_prefix_count();
-  debug_total_parts_++;
-  if (old_ready_prefix_count == new_ready_prefix_count) {
-    debug_bad_parts_.push_back(part.id);
-    debug_bad_part_order_++;
-  }
-  on_progress();
-  return Status::OK();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileDownloader.h b/third-party/td/td/td/telegram/files/FileDownloader.h
deleted file mode 100644
index 5197c8bd3c..0000000000
--- a/third-party/td/td/td/telegram/files/FileDownloader.h
+++ /dev/null
@@ -1,156 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DelayDispatcher.h"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileLoaderActor.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/PartsManager.h"
-#include "td/telegram/files/ResourceManager.h"
-#include "td/telegram/files/ResourceState.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/OrderedEventsProcessor.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Status.h"
-
-#include <map>
-#include <set>
-#include <utility>
-
-namespace td {
-
-class FileDownloader final : public FileLoaderActor {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual void on_start_download() = 0;
-    virtual void on_partial_download(PartialLocalFileLocation partial_local, int64 size) = 0;
-    virtual void on_ok(FullLocalFileLocation full_local, int64 size, bool is_new) = 0;
-    virtual void on_error(Status status) = 0;
-    virtual ~Callback() = default;
-  };
-
-  FileDownloader(const FullRemoteFileLocation &remote, const LocalFileLocation &local, int64 size, string name,
-                 const FileEncryptionKey &encryption_key, bool is_small, bool need_search_file, int64 offset,
-                 int64 limit, unique_ptr<Callback> callback);
-
-  void update_downloaded_part(int64 offset, int64 limit, int64 max_resource_limit);
-
-  // Should just implement all parent pure virtual methods.
-  // Must not call any of them...
- private:
-  enum class QueryType : uint8 { Default = 1, CDN, ReuploadCDN };
-  FullRemoteFileLocation remote_;
-  LocalFileLocation local_;
-  int64 size_;
-  string name_;
-  FileEncryptionKey encryption_key_;
-  unique_ptr<Callback> callback_;
-  bool only_check_{false};
-
-  string path_;
-  FileFd fd_;
-
-  int32 next_part_ = 0;
-  bool next_part_stop_ = false;
-  bool is_small_ = false;
-  bool need_search_file_ = false;
-  bool ordered_flag_ = false;
-  bool keep_fd_ = false;
-  int64 offset_ = 0;
-  int64 limit_ = 0;
-
-  bool use_cdn_ = false;
-  DcId cdn_dc_id_;
-  string cdn_encryption_key_;
-  string cdn_encryption_iv_;
-  string cdn_file_token_;
-  int32 cdn_file_token_generation_{0};
-  std::map<int32, string> cdn_part_reupload_token_;
-  std::map<int32, int32> cdn_part_file_token_generation_;
-
-  bool need_check_ = false;
-  struct HashInfo {
-    int64 offset;
-    size_t size;
-    string hash;
-    bool operator<(const HashInfo &other) const {
-      return offset < other.offset;
-    }
-  };
-  std::set<HashInfo> hash_info_;
-  bool has_hash_query_ = false;
-
-  static constexpr uint8 COMMON_QUERY_KEY = 2;
-  bool stop_flag_ = false;
-  ActorShared<ResourceManager> resource_manager_;
-  ResourceState resource_state_;
-  PartsManager parts_manager_;
-  std::map<uint64, std::pair<Part, ActorShared<>>> part_map_;
-  OrderedEventsProcessor<std::pair<Part, NetQueryPtr>> ordered_parts_;
-  ActorOwn<DelayDispatcher> delay_dispatcher_;
-  double next_delay_ = 0;
-
-  uint32 debug_total_parts_ = 0;
-  uint32 debug_bad_part_order_ = 0;
-  std::vector<int32> debug_bad_parts_;
-
-  void hangup() final;
-
-  void hangup_shared() final;
-
-  void on_error(Status status);
-
-  Result<bool> should_restart_part(Part part, const NetQueryPtr &net_query) TD_WARN_UNUSED_RESULT;
-
-  Status process_check_query(NetQueryPtr net_query);
-
-  Status check_loop(int64 checked_prefix_size, int64 ready_prefix_size, bool is_ready);
-
-  Result<NetQueryPtr> start_part(Part part, int32 part_count, int64 streaming_offset) TD_WARN_UNUSED_RESULT;
-
-  Result<size_t> process_part(Part part, NetQueryPtr net_query) TD_WARN_UNUSED_RESULT;
-
-  void add_hash_info(const std::vector<telegram_api::object_ptr<telegram_api::fileHash>> &hashes);
-
-  void try_release_fd();
-
-  Status acquire_fd() TD_WARN_UNUSED_RESULT;
-
-  Status check_net_query(NetQueryPtr &net_query);
-
-  void set_resource_manager(ActorShared<ResourceManager> resource_manager) final;
-
-  void update_priority(int8 priority) final;
-
-  void update_resources(const ResourceState &other) final;
-
-  void start_up() final;
-  void loop() final;
-  Status do_loop();
-  void tear_down() final;
-
-  void update_estimated_limit();
-  void on_progress();
-
-  void on_result(NetQueryPtr query) final;
-  void on_part_query(Part part, NetQueryPtr query);
-  void on_common_query(NetQueryPtr query);
-  Status try_on_part_query(Part part, NetQueryPtr query);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileEncryptionKey.cpp b/third-party/td/td/td/telegram/files/FileEncryptionKey.cpp
deleted file mode 100644
index c4e3813fe3..0000000000
--- a/third-party/td/td/td/telegram/files/FileEncryptionKey.cpp
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileEncryptionKey.h"
-
-#include "td/telegram/SecureStorage.h"
-
-#include "td/utils/as.h"
-#include "td/utils/crypto.h"
-#include "td/utils/Random.h"
-
-namespace td {
-
-FileEncryptionKey::FileEncryptionKey(Slice key, Slice iv) : key_iv_(key.size() + iv.size(), '\0'), type_(Type::Secret) {
-  if (key.size() != 32 || iv.size() != 32) {
-    LOG(ERROR) << "Wrong key/iv sizes: " << key.size() << " " << iv.size();
-    type_ = Type::None;
-    return;
-  }
-  CHECK(key_iv_.size() == 64);
-  MutableSlice(key_iv_).copy_from(key);
-  MutableSlice(key_iv_).substr(key.size()).copy_from(iv);
-}
-
-FileEncryptionKey::FileEncryptionKey(const secure_storage::Secret &secret) : type_(Type::Secure) {
-  key_iv_ = secret.as_slice().str();
-}
-
-FileEncryptionKey FileEncryptionKey::create() {
-  FileEncryptionKey res;
-  res.key_iv_.resize(64);
-  Random::secure_bytes(res.key_iv_);
-  res.type_ = Type::Secret;
-  return res;
-}
-FileEncryptionKey FileEncryptionKey::create_secure_key() {
-  return FileEncryptionKey(secure_storage::Secret::create_new());
-}
-
-const UInt256 &FileEncryptionKey::key() const {
-  CHECK(is_secret());
-  CHECK(key_iv_.size() == 64);
-  return *reinterpret_cast<const UInt256 *>(key_iv_.data());
-}
-Slice FileEncryptionKey::key_slice() const {
-  CHECK(is_secret());
-  CHECK(key_iv_.size() == 64);
-  return Slice(key_iv_.data(), 32);
-}
-secure_storage::Secret FileEncryptionKey::secret() const {
-  CHECK(is_secure());
-  return secure_storage::Secret::create(Slice(key_iv_).truncate(32)).move_as_ok();
-}
-
-bool FileEncryptionKey::has_value_hash() const {
-  CHECK(is_secure());
-  return key_iv_.size() > secure_storage::Secret::size();
-}
-
-void FileEncryptionKey::set_value_hash(const secure_storage::ValueHash &value_hash) {
-  key_iv_.resize(secure_storage::Secret::size() + value_hash.as_slice().size());
-  MutableSlice(key_iv_).remove_prefix(secure_storage::Secret::size()).copy_from(value_hash.as_slice());
-}
-
-secure_storage::ValueHash FileEncryptionKey::value_hash() const {
-  CHECK(has_value_hash());
-  return secure_storage::ValueHash::create(Slice(key_iv_).remove_prefix(secure_storage::Secret::size())).move_as_ok();
-}
-
-UInt256 &FileEncryptionKey::mutable_iv() {
-  CHECK(is_secret());
-  CHECK(key_iv_.size() == 64);
-  return *reinterpret_cast<UInt256 *>(&key_iv_[0] + 32);
-}
-Slice FileEncryptionKey::iv_slice() const {
-  CHECK(is_secret());
-  CHECK(key_iv_.size() == 64);
-  return Slice(key_iv_.data() + 32, 32);
-}
-
-int32 FileEncryptionKey::calc_fingerprint() const {
-  CHECK(is_secret());
-  char buf[16];
-  md5(key_iv_, {buf, sizeof(buf)});
-  return as<int32>(buf) ^ as<int32>(buf + 4);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const FileEncryptionKey &key) {
-  if (key.is_secret()) {
-    return string_builder << "SecretKey{" << key.size() << "}";
-  }
-  if (key.is_secure()) {
-    return string_builder << "SecureKey{" << key.size() << "}";
-  }
-  return string_builder << "NoKey{}";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileEncryptionKey.h b/third-party/td/td/td/telegram/files/FileEncryptionKey.h
deleted file mode 100644
index 949e354497..0000000000
--- a/third-party/td/td/td/telegram/files/FileEncryptionKey.h
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-
-namespace secure_storage {
-class Secret;
-class ValueHash;
-}  // namespace secure_storage
-
-struct FileEncryptionKey {
-  enum class Type : int32 { None, Secret, Secure };
-
-  FileEncryptionKey() = default;
-
-  FileEncryptionKey(Slice key, Slice iv);
-
-  explicit FileEncryptionKey(const secure_storage::Secret &secret);
-
-  bool is_secret() const {
-    return type_ == Type::Secret;
-  }
-
-  bool is_secure() const {
-    return type_ == Type::Secure;
-  }
-
-  static FileEncryptionKey create();
-
-  static FileEncryptionKey create_secure_key();
-
-  const UInt256 &key() const;
-
-  Slice key_slice() const;
-
-  secure_storage::Secret secret() const;
-
-  bool has_value_hash() const;
-
-  void set_value_hash(const secure_storage::ValueHash &value_hash);
-
-  secure_storage::ValueHash value_hash() const;
-
-  UInt256 &mutable_iv();
-
-  Slice iv_slice() const;
-
-  int32 calc_fingerprint() const;
-
-  bool empty() const {
-    return key_iv_.empty();
-  }
-
-  size_t size() const {
-    return key_iv_.size();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    td::store(key_iv_, storer);
-  }
-  template <class ParserT>
-  void parse(Type type, ParserT &parser) {
-    td::parse(key_iv_, parser);
-    if (key_iv_.empty()) {
-      type_ = Type::None;
-    } else {
-      if (type_ == Type::Secure) {
-        if (key_iv_.size() != 64) {
-          LOG(ERROR) << "Have wrong key size " << key_iv_.size();
-        }
-      }
-      type_ = type;
-    }
-  }
-
-  friend bool operator==(const FileEncryptionKey &lhs, const FileEncryptionKey &rhs) {
-    return lhs.key_iv_ == rhs.key_iv_;
-  }
-
- private:
-  string key_iv_;  // TODO wrong alignment is possible
-  Type type_ = Type::None;
-};
-
-inline bool operator!=(const FileEncryptionKey &lhs, const FileEncryptionKey &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const FileEncryptionKey &key);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileFromBytes.cpp b/third-party/td/td/td/telegram/files/FileFromBytes.cpp
deleted file mode 100644
index 096b41731c..0000000000
--- a/third-party/td/td/td/telegram/files/FileFromBytes.cpp
+++ /dev/null
@@ -1,30 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileFromBytes.h"
-
-#include "td/telegram/files/FileLoaderUtils.h"
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-FileFromBytes::FileFromBytes(FileType type, BufferSlice bytes, string name, unique_ptr<Callback> callback)
-    : type_(type), bytes_(std::move(bytes)), name_(std::move(name)), callback_(std::move(callback)) {
-}
-
-void FileFromBytes::wakeup() {
-  auto size = narrow_cast<int64>(bytes_.size());
-  auto r_result = save_file_bytes(type_, std::move(bytes_), name_);
-  if (r_result.is_error()) {
-    callback_->on_error(r_result.move_as_error());
-  } else {
-    callback_->on_ok(r_result.ok(), size);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileFromBytes.h b/third-party/td/td/td/telegram/files/FileFromBytes.h
deleted file mode 100644
index 7c38318691..0000000000
--- a/third-party/td/td/td/telegram/files/FileFromBytes.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileType.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class FileFromBytes final : public Actor {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-    virtual void on_ok(const FullLocalFileLocation &full_local, int64 size) = 0;
-    virtual void on_error(Status status) = 0;
-  };
-
-  FileFromBytes(FileType type, BufferSlice bytes, string name, unique_ptr<Callback> callback);
-
- private:
-  FileType type_;
-  BufferSlice bytes_;
-  string name_;
-  unique_ptr<Callback> callback_;
-
-  void wakeup() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileGcParameters.cpp b/third-party/td/td/td/telegram/files/FileGcParameters.cpp
deleted file mode 100644
index 71a00cd822..0000000000
--- a/third-party/td/td/td/telegram/files/FileGcParameters.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileGcParameters.h"
-
-#include "td/telegram/Global.h"
-
-#include "td/utils/format.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-FileGcParameters::FileGcParameters(int64 size, int32 ttl, int32 count, int32 immunity_delay,
-                                   vector<FileType> file_types, vector<DialogId> owner_dialog_ids,
-                                   vector<DialogId> exclude_owner_dialog_ids, int32 dialog_limit)
-    : file_types_(std::move(file_types))
-    , owner_dialog_ids_(std::move(owner_dialog_ids))
-    , exclude_owner_dialog_ids_(std::move(exclude_owner_dialog_ids))
-    , dialog_limit_(dialog_limit) {
-  max_files_size_ = size >= 0 ? size : G()->get_option_integer("storage_max_files_size", 100 << 10) << 10;
-
-  max_time_from_last_access_ =
-      ttl >= 0 ? ttl : narrow_cast<int32>(G()->get_option_integer("storage_max_time_from_last_access", 60 * 60 * 23));
-
-  max_file_count_ = count >= 0 ? count : narrow_cast<int32>(G()->get_option_integer("storage_max_file_count", 40000));
-
-  immunity_delay_ = immunity_delay >= 0
-                        ? immunity_delay
-                        : narrow_cast<int32>(G()->get_option_integer("storage_immunity_delay", 60 * 60));
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const FileGcParameters &parameters) {
-  return string_builder << "FileGcParameters[" << tag("max_files_size", parameters.max_files_size_)
-                        << tag("max_time_from_last_access", parameters.max_time_from_last_access_)
-                        << tag("max_file_count", parameters.max_file_count_)
-                        << tag("immunity_delay", parameters.immunity_delay_)
-                        << tag("file_types", parameters.file_types_)
-                        << tag("owner_dialog_ids", parameters.owner_dialog_ids_)
-                        << tag("exclude_owner_dialog_ids", parameters.exclude_owner_dialog_ids_)
-                        << tag("dialog_limit", parameters.dialog_limit_) << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileGcParameters.h b/third-party/td/td/td/telegram/files/FileGcParameters.h
deleted file mode 100644
index 11e452c914..0000000000
--- a/third-party/td/td/td/telegram/files/FileGcParameters.h
+++ /dev/null
@@ -1,37 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileType.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct FileGcParameters {
-  FileGcParameters() : FileGcParameters(-1, -1, -1, -1, {}, {}, {}, 0) {
-  }
-  FileGcParameters(int64 size, int32 ttl, int32 count, int32 immunity_delay, vector<FileType> file_types,
-                   vector<DialogId> owner_dialog_ids, vector<DialogId> exclude_owner_dialog_ids, int32 dialog_limit);
-
-  int64 max_files_size_;
-  uint32 max_time_from_last_access_;
-  uint32 max_file_count_;
-  uint32 immunity_delay_;
-
-  vector<FileType> file_types_;
-  vector<DialogId> owner_dialog_ids_;
-  vector<DialogId> exclude_owner_dialog_ids_;
-
-  int32 dialog_limit_;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const FileGcParameters &parameters);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileGcWorker.cpp b/third-party/td/td/td/telegram/files/FileGcWorker.cpp
deleted file mode 100644
index d72f045eac..0000000000
--- a/third-party/td/td/td/telegram/files/FileGcWorker.cpp
+++ /dev/null
@@ -1,199 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileGcWorker.h"
-
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/path.h"
-#include "td/utils/Time.h"
-
-#include <algorithm>
-#include <array>
-
-namespace td {
-
-int VERBOSITY_NAME(file_gc) = VERBOSITY_NAME(INFO);
-
-void FileGcWorker::run_gc(const FileGcParameters &parameters, vector<FullFileInfo> files, bool send_updates,
-                          Promise<FileGcResult> promise) {
-  auto begin_time = Time::now();
-  VLOG(file_gc) << "Start files GC with " << parameters;
-  // quite stupid implementations
-  // needs a lot of memory
-  // may write something more clever, but i will need at least 2 passes over the files
-  // TODO update atime for all files in android (?)
-
-  std::array<bool, MAX_FILE_TYPE> immune_types{{false}};
-
-  if (G()->use_file_database()) {
-    // immune by default
-    immune_types[narrow_cast<size_t>(FileType::Sticker)] = true;
-    immune_types[narrow_cast<size_t>(FileType::ProfilePhoto)] = true;
-    immune_types[narrow_cast<size_t>(FileType::Thumbnail)] = true;
-    immune_types[narrow_cast<size_t>(FileType::Wallpaper)] = true;
-    immune_types[narrow_cast<size_t>(FileType::Background)] = true;
-    immune_types[narrow_cast<size_t>(FileType::Ringtone)] = true;
-  }
-
-  if (!parameters.file_types_.empty()) {
-    std::fill(immune_types.begin(), immune_types.end(), true);
-    for (auto file_type : parameters.file_types_) {
-      immune_types[narrow_cast<size_t>(file_type)] = false;
-    }
-    for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-      auto main_file_type = narrow_cast<size_t>(get_main_file_type(static_cast<FileType>(i)));
-      if (!immune_types[main_file_type]) {
-        immune_types[i] = false;
-      }
-    }
-  }
-
-  if (G()->use_file_database()) {
-    immune_types[narrow_cast<size_t>(FileType::EncryptedThumbnail)] = true;
-  }
-
-  auto file_cnt = files.size();
-  int32 type_immunity_ignored_cnt = 0;
-  int32 time_immunity_ignored_cnt = 0;
-  int32 exclude_owner_dialog_id_ignored_cnt = 0;
-  int32 owner_dialog_id_ignored_cnt = 0;
-  int32 remove_by_atime_cnt = 0;
-  int32 remove_by_count_cnt = 0;
-  int32 remove_by_size_cnt = 0;
-  int64 total_removed_size = 0;
-  int64 total_size = 0;
-  for (auto &info : files) {
-    if (info.atime_nsec < info.mtime_nsec) {
-      info.atime_nsec = info.mtime_nsec;
-    }
-    total_size += info.size;
-  }
-
-  FileStats new_stats(false, parameters.dialog_limit_ != 0);
-  FileStats removed_stats(false, parameters.dialog_limit_ != 0);
-
-  auto do_remove_file = [&removed_stats, send_updates](const FullFileInfo &info) {
-    removed_stats.add_copy(info);
-    auto status = unlink(info.path);
-    LOG_IF(WARNING, status.is_error()) << "Failed to unlink file \"" << info.path << "\" during files GC: " << status;
-    if (send_updates) {
-      send_closure(G()->file_manager(), &FileManager::on_file_unlink,
-                   FullLocalFileLocation(info.file_type, info.path, info.mtime_nsec));
-    }
-  };
-
-  double now = Clocks::system();
-
-  // Remove all suitable files with (atime > now - max_time_from_last_access)
-  td::remove_if(files, [&](const FullFileInfo &info) {
-    if (token_) {
-      return false;
-    }
-    if (immune_types[narrow_cast<size_t>(info.file_type)]) {
-      type_immunity_ignored_cnt++;
-      new_stats.add_copy(info);
-      return true;
-    }
-    if (td::contains(parameters.exclude_owner_dialog_ids_, info.owner_dialog_id)) {
-      exclude_owner_dialog_id_ignored_cnt++;
-      new_stats.add_copy(info);
-      return true;
-    }
-    if (!parameters.owner_dialog_ids_.empty() && !td::contains(parameters.owner_dialog_ids_, info.owner_dialog_id)) {
-      owner_dialog_id_ignored_cnt++;
-      new_stats.add_copy(info);
-      return true;
-    }
-    if (static_cast<double>(info.mtime_nsec) * 1e-9 > now - parameters.immunity_delay_) {
-      // new files are immune to GC
-      time_immunity_ignored_cnt++;
-      new_stats.add_copy(info);
-      return true;
-    }
-
-    if (static_cast<double>(info.atime_nsec) * 1e-9 < now - parameters.max_time_from_last_access_) {
-      do_remove_file(info);
-      total_removed_size += info.size;
-      remove_by_atime_cnt++;
-      return true;
-    }
-    return false;
-  });
-  if (token_) {
-    return promise.set_error(Global::request_aborted_error());
-  }
-
-  // sort by max(atime, mtime)
-  std::sort(files.begin(), files.end(), [](const auto &a, const auto &b) { return a.atime_nsec < b.atime_nsec; });
-
-  // 1. Total size must be less than parameters.max_files_size_
-  // 2. Total file count must be less than parameters.max_file_count_
-  size_t remove_count = 0;
-  if (files.size() > parameters.max_file_count_) {
-    remove_count = files.size() - parameters.max_file_count_;
-  }
-  int64 remove_size = -parameters.max_files_size_;
-  for (auto &file : files) {
-    remove_size += file.size;
-  }
-
-  size_t pos = 0;
-  while (pos < files.size() && (remove_count > 0 || remove_size > 0)) {
-    if (token_) {
-      return promise.set_error(Global::request_aborted_error());
-    }
-    if (remove_count > 0) {
-      remove_by_count_cnt++;
-    } else {
-      remove_by_size_cnt++;
-    }
-
-    if (remove_count > 0) {
-      remove_count--;
-    }
-    remove_size -= files[pos].size;
-
-    total_removed_size += files[pos].size;
-    do_remove_file(files[pos]);
-    pos++;
-  }
-
-  while (pos < files.size()) {
-    new_stats.add_copy(files[pos]);
-    pos++;
-  }
-
-  auto end_time = Time::now();
-
-  VLOG(file_gc) << "Finish files GC: " << tag("time", end_time - begin_time) << tag("total", file_cnt)
-                << tag("removed", remove_by_atime_cnt + remove_by_count_cnt + remove_by_size_cnt)
-                << tag("total_size", format::as_size(total_size))
-                << tag("total_removed_size", format::as_size(total_removed_size))
-                << tag("by_atime", remove_by_atime_cnt) << tag("by_count", remove_by_count_cnt)
-                << tag("by_size", remove_by_size_cnt) << tag("type_immunity", type_immunity_ignored_cnt)
-                << tag("time_immunity", time_immunity_ignored_cnt)
-                << tag("owner_dialog_id_immunity", owner_dialog_id_ignored_cnt)
-                << tag("exclude_owner_dialog_id_immunity", exclude_owner_dialog_id_ignored_cnt);
-  if (end_time - begin_time > 1.0) {
-    LOG(WARNING) << "Finish file GC: " << tag("time", end_time - begin_time) << tag("total", file_cnt)
-                 << tag("removed", remove_by_atime_cnt + remove_by_count_cnt + remove_by_size_cnt)
-                 << tag("total_size", format::as_size(total_size))
-                 << tag("total_removed_size", format::as_size(total_removed_size));
-  }
-
-  promise.set_value({std::move(new_stats), std::move(removed_stats)});
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileGcWorker.h b/third-party/td/td/td/telegram/files/FileGcWorker.h
deleted file mode 100644
index 08b389d75a..0000000000
--- a/third-party/td/td/td/telegram/files/FileGcWorker.h
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileGcParameters.h"
-#include "td/telegram/files/FileStats.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/CancellationToken.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-extern int VERBOSITY_NAME(file_gc);
-
-struct FileGcResult {
-  FileStats kept_file_stats_;
-  FileStats removed_file_stats_;
-};
-
-class FileGcWorker final : public Actor {
- public:
-  FileGcWorker(ActorShared<> parent, CancellationToken token) : parent_(std::move(parent)), token_(std::move(token)) {
-  }
-
-  void run_gc(const FileGcParameters &parameters, vector<FullFileInfo> files, bool send_updates,
-              Promise<FileGcResult> promise);
-
- private:
-  ActorShared<> parent_;
-  CancellationToken token_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileGenerateManager.cpp b/third-party/td/td/td/telegram/files/FileGenerateManager.cpp
deleted file mode 100644
index 7ec423bbbc..0000000000
--- a/third-party/td/td/td/telegram/files/FileGenerateManager.cpp
+++ /dev/null
@@ -1,519 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileGenerateManager.h"
-
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileLoaderUtils.h"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Parser.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <cmath>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class FileGenerateActor : public Actor {
- public:
-  virtual void file_generate_write_part(int64 offset, string data, Promise<> promise) {
-    LOG(ERROR) << "Receive unexpected file_generate_write_part";
-  }
-  virtual void file_generate_progress(int64 expected_size, int64 local_prefix_size, Promise<> promise) = 0;
-  virtual void file_generate_finish(Status status, Promise<> promise) = 0;
-};
-
-class FileDownloadGenerateActor final : public FileGenerateActor {
- public:
-  FileDownloadGenerateActor(FileType file_type, FileId file_id, unique_ptr<FileGenerateCallback> callback,
-                            ActorShared<> parent)
-      : file_type_(file_type), file_id_(file_id), callback_(std::move(callback)), parent_(std::move(parent)) {
-  }
-  void file_generate_progress(int64 expected_size, int64 local_prefix_size, Promise<> promise) final {
-    UNREACHABLE();
-  }
-  void file_generate_finish(Status status, Promise<> promise) final {
-    UNREACHABLE();
-  }
-
- private:
-  FileType file_type_;
-  FileId file_id_;
-  int64 internal_download_id_ = 0;
-  unique_ptr<FileGenerateCallback> callback_;
-  ActorShared<> parent_;
-
-  void start_up() final {
-    LOG(INFO) << "Generate by downloading " << file_id_;
-    class Callback final : public FileManager::DownloadCallback {
-     public:
-      explicit Callback(ActorId<FileDownloadGenerateActor> parent) : parent_(std::move(parent)) {
-      }
-
-      // TODO: upload during download
-
-      void on_download_ok(FileId file_id) final {
-        send_closure(parent_, &FileDownloadGenerateActor::on_download_ok);
-      }
-      void on_download_error(FileId file_id, Status error) final {
-        send_closure(parent_, &FileDownloadGenerateActor::on_download_error, std::move(error));
-      }
-
-     private:
-      ActorId<FileDownloadGenerateActor> parent_;
-    };
-
-    internal_download_id_ = FileManager::get_internal_download_id();
-    send_closure(G()->file_manager(), &FileManager::download, file_id_, internal_download_id_,
-                 std::make_shared<Callback>(actor_id(this)), 1, -1, -1, Promise<td_api::object_ptr<td_api::file>>());
-  }
-  void hangup() final {
-    send_closure(G()->file_manager(), &FileManager::cancel_download, file_id_, internal_download_id_, false);
-    stop();
-  }
-
-  void on_download_ok() {
-    send_lambda(G()->file_manager(),
-                [file_type = file_type_, file_id = file_id_, callback = std::move(callback_)]() mutable {
-                  auto file_view = G()->td().get_actor_unsafe()->file_manager_->get_file_view(file_id);
-                  CHECK(!file_view.empty());
-                  const auto *full_local_location = file_view.get_full_local_location();
-                  if (full_local_location != nullptr) {
-                    auto location = *full_local_location;
-                    location.file_type_ = file_type;
-                    callback->on_ok(std::move(location));
-                  } else {
-                    LOG(ERROR) << "Expected to have local location";
-                    callback->on_error(Status::Error(500, "Unknown"));
-                  }
-                });
-    stop();
-  }
-  void on_download_error(Status error) {
-    callback_->on_error(std::move(error));
-    stop();
-  }
-};
-
-class WebFileDownloadGenerateActor final : public FileGenerateActor {
- public:
-  WebFileDownloadGenerateActor(string conversion, unique_ptr<FileGenerateCallback> callback, ActorShared<> parent)
-      : conversion_(std::move(conversion)), callback_(std::move(callback)), parent_(std::move(parent)) {
-  }
-  void file_generate_progress(int64 expected_size, int64 local_prefix_size, Promise<> promise) final {
-    UNREACHABLE();
-  }
-  void file_generate_finish(Status status, Promise<> promise) final {
-    UNREACHABLE();
-  }
-
- private:
-  string conversion_;
-  unique_ptr<FileGenerateCallback> callback_;
-  ActorShared<> parent_;
-  string file_name_;
-
-  class Callback final : public NetQueryCallback {
-    ActorId<WebFileDownloadGenerateActor> parent_;
-
-   public:
-    explicit Callback(ActorId<WebFileDownloadGenerateActor> parent) : parent_(parent) {
-    }
-
-    void on_result(NetQueryPtr query) final {
-      send_closure(parent_, &WebFileDownloadGenerateActor::on_result, std::move(query));
-    }
-
-    void hangup_shared() final {
-      send_closure(parent_, &WebFileDownloadGenerateActor::hangup_shared);
-    }
-  };
-  ActorOwn<NetQueryCallback> net_callback_;
-
-  Result<telegram_api::object_ptr<telegram_api::InputWebFileLocation>> parse_conversion() {
-    auto parts = full_split(Slice(conversion_), '#');
-    if (parts.size() <= 2 || !parts[0].empty() || !parts.back().empty()) {
-      return Status::Error("Wrong conversion");
-    }
-
-    if (parts.size() == 6 && parts[1] == "audio_t") {
-      // music thumbnail
-      if (parts[2].empty() && parts[3].empty()) {
-        return Status::Error("Title or performer must be non-empty");
-      }
-      if (parts[4] != "0" && parts[4] != "1") {
-        return Status::Error("Invalid conversion");
-      }
-
-      bool is_small = parts[4][0] == '1';
-      file_name_ = PSTRING() << "Album cover " << (is_small ? "thumbnail " : "") << "for " << parts[3] << " - "
-                             << parts[2] << ".jpg";
-
-      int32 flags = telegram_api::inputWebFileAudioAlbumThumbLocation::TITLE_MASK;
-      return telegram_api::make_object<telegram_api::inputWebFileAudioAlbumThumbLocation>(
-          flags, is_small, nullptr, parts[2].str(), parts[3].str());
-    }
-
-    if (parts.size() != 9 || parts[1] != "map") {
-      return Status::Error("Wrong conversion");
-    }
-
-    TRY_RESULT(zoom, to_integer_safe<int32>(parts[2]));
-    TRY_RESULT(x, to_integer_safe<int32>(parts[3]));
-    TRY_RESULT(y, to_integer_safe<int32>(parts[4]));
-    TRY_RESULT(width, to_integer_safe<int32>(parts[5]));
-    TRY_RESULT(height, to_integer_safe<int32>(parts[6]));
-    TRY_RESULT(scale, to_integer_safe<int32>(parts[7]));
-
-    if (zoom < 13 || zoom > 20) {
-      return Status::Error("Wrong zoom");
-    }
-    auto size = 256 * (1 << zoom);
-    if (x < 0 || x >= size) {
-      return Status::Error("Wrong x");
-    }
-    if (y < 0 || y >= size) {
-      return Status::Error("Wrong y");
-    }
-    if (width < 16 || height < 16 || width > 1024 || height > 1024) {
-      return Status::Error("Wrong dimensions");
-    }
-    if (scale < 1 || scale > 3) {
-      return Status::Error("Wrong scale");
-    }
-
-    file_name_ = PSTRING() << "map_" << zoom << "_" << x << "_" << y << ".png";
-
-    const double PI = 3.14159265358979323846;
-    double longitude = (x + 0.1) * 360.0 / size - 180;
-    double latitude = 90 - 360 * std::atan(std::exp(((y + 0.1) / size - 0.5) * 2 * PI)) / PI;
-
-    int64 access_hash = G()->get_location_access_hash(latitude, longitude);
-    return telegram_api::make_object<telegram_api::inputWebFileGeoPointLocation>(
-        telegram_api::make_object<telegram_api::inputGeoPoint>(0, latitude, longitude, 0), access_hash, width, height,
-        zoom, scale);
-  }
-
-  void start_up() final {
-    auto r_input_web_file = parse_conversion();
-    if (r_input_web_file.is_error()) {
-      LOG(ERROR) << "Can't parse " << conversion_ << ": " << r_input_web_file.error();
-      return on_error(r_input_web_file.move_as_error());
-    }
-
-    net_callback_ = create_actor<Callback>("WebFileDownloadGenerateCallback", actor_id(this));
-
-    LOG(INFO) << "Download " << conversion_;
-    auto query =
-        G()->net_query_creator().create(telegram_api::upload_getWebFile(r_input_web_file.move_as_ok(), 0, 1 << 20), {},
-                                        G()->get_webfile_dc_id(), NetQuery::Type::DownloadSmall);
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(query), {net_callback_.get(), 0});
-  }
-
-  void on_result(NetQueryPtr query) {
-    auto r_result = process_result(std::move(query));
-    if (r_result.is_error()) {
-      return on_error(r_result.move_as_error());
-    }
-
-    callback_->on_ok(r_result.ok());
-    stop();
-  }
-
-  Result<FullLocalFileLocation> process_result(NetQueryPtr query) {
-    TRY_RESULT(web_file, fetch_result<telegram_api::upload_getWebFile>(std::move(query)));
-
-    if (static_cast<size_t>(web_file->size_) != web_file->bytes_.size()) {
-      LOG(ERROR) << "Failed to download web file of size " << web_file->size_;
-      return Status::Error("File is too big");
-    }
-
-    return save_file_bytes(FileType::Thumbnail, std::move(web_file->bytes_), file_name_);
-  }
-
-  void on_error(Status error) {
-    callback_->on_error(std::move(error));
-    stop();
-  }
-
-  void hangup_shared() final {
-    on_error(Status::Error(-1, "Canceled"));
-  }
-};
-
-class FileExternalGenerateActor final : public FileGenerateActor {
- public:
-  FileExternalGenerateActor(FileGenerateManager::QueryId query_id, const FullGenerateFileLocation &generate_location,
-                            const LocalFileLocation &local_location, string name,
-                            unique_ptr<FileGenerateCallback> callback, ActorShared<> parent)
-      : query_id_(query_id)
-      , generate_location_(generate_location)
-      , local_(local_location)
-      , name_(std::move(name))
-      , callback_(std::move(callback))
-      , parent_(std::move(parent)) {
-  }
-
-  void file_generate_write_part(int64 offset, string data, Promise<> promise) final {
-    check_status(do_file_generate_write_part(offset, data), std::move(promise));
-  }
-
-  void file_generate_progress(int64 expected_size, int64 local_prefix_size, Promise<> promise) final {
-    check_status(do_file_generate_progress(expected_size, local_prefix_size), std::move(promise));
-  }
-
-  void file_generate_finish(Status status, Promise<> promise) final {
-    if (status.is_error()) {
-      check_status(std::move(status));
-      return promise.set_value(Unit());
-    }
-
-    check_status(do_file_generate_finish(), std::move(promise));
-  }
-
- private:
-  FileGenerateManager::QueryId query_id_;
-  FullGenerateFileLocation generate_location_;
-  LocalFileLocation local_;
-  string name_;
-  string path_;
-  unique_ptr<FileGenerateCallback> callback_;
-  ActorShared<> parent_;
-
-  void start_up() final {
-    if (local_.type() == LocalFileLocation::Type::Full) {
-      callback_->on_ok(local_.full());
-      callback_.reset();
-      return stop();
-    }
-
-    if (local_.type() == LocalFileLocation::Type::Partial) {
-      const auto &partial = local_.partial();
-      path_ = partial.path_;
-      LOG(INFO) << "Unlink partially generated file at " << path_;
-      unlink(path_).ignore();
-    } else {
-      auto r_file_path = open_temp_file(generate_location_.file_type_);
-      if (r_file_path.is_error()) {
-        return check_status(r_file_path.move_as_error());
-      }
-      auto file_path = r_file_path.move_as_ok();
-      file_path.first.close();
-      path_ = file_path.second;
-    }
-    send_closure(
-        G()->td(), &Td::send_update,
-        make_tl_object<td_api::updateFileGenerationStart>(
-            static_cast<int64>(query_id_), generate_location_.original_path_, path_, generate_location_.conversion_));
-  }
-  void hangup() final {
-    check_status(Status::Error(-1, "Canceled"));
-  }
-
-  Status do_file_generate_write_part(int64 offset, const string &data) {
-    if (offset < 0) {
-      return Status::Error("Wrong offset specified");
-    }
-
-    auto size = data.size();
-    TRY_RESULT(fd, FileFd::open(path_, FileFd::Create | FileFd::Write));
-    TRY_RESULT(written, fd.pwrite(data, offset));
-    if (written != size) {
-      return Status::Error(PSLICE() << "Failed to write file: written " << written << " bytes instead of " << size);
-    }
-    return Status::OK();
-  }
-
-  Status do_file_generate_progress(int64 expected_size, int64 local_prefix_size) {
-    if (local_prefix_size < 0) {
-      return Status::Error(400, "Invalid local prefix size");
-    }
-    callback_->on_partial_generate(PartialLocalFileLocation{generate_location_.file_type_, local_prefix_size, path_, "",
-                                                            Bitmask(Bitmask::Ones{}, 1).encode(), local_prefix_size},
-                                   expected_size);
-    return Status::OK();
-  }
-
-  Status do_file_generate_finish() {
-    TRY_RESULT(perm_path, create_from_temp(generate_location_.file_type_, path_, name_));
-    callback_->on_ok(FullLocalFileLocation(generate_location_.file_type_, std::move(perm_path), 0));
-    callback_.reset();
-    stop();
-    return Status::OK();
-  }
-
-  void check_status(Status status, Promise<> promise = Promise<>()) {
-    if (promise) {
-      if (status.is_ok() || status.code() == -1) {
-        promise.set_value(Unit());
-      } else {
-        promise.set_error(Status::Error(400, status.message()));
-      }
-    }
-
-    if (status.is_error()) {
-      LOG(INFO) << "Unlink partially generated file at " << path_ << " because of " << status;
-      unlink(path_).ignore();
-      callback_->on_error(std::move(status));
-      callback_.reset();
-      stop();
-    }
-  }
-
-  void tear_down() final {
-    send_closure(G()->td(), &Td::send_update,
-                 make_tl_object<td_api::updateFileGenerationStop>(static_cast<int64>(query_id_)));
-  }
-};
-
-FileGenerateManager::Query::~Query() = default;
-FileGenerateManager::Query::Query(Query &&) noexcept = default;
-FileGenerateManager::Query &FileGenerateManager::Query::operator=(Query &&) noexcept = default;
-
-static Status check_mtime(std::string &conversion, CSlice original_path) {
-  if (original_path.empty()) {
-    return Status::OK();
-  }
-  ConstParser parser(conversion);
-  if (!parser.try_skip("#mtime#")) {
-    return Status::OK();
-  }
-  auto mtime_str = parser.read_till('#');
-  parser.skip('#');
-  while (mtime_str.size() >= 2 && mtime_str[0] == '0') {
-    mtime_str.remove_prefix(1);
-  }
-  auto r_mtime = to_integer_safe<uint64>(mtime_str);
-  if (parser.status().is_error() || r_mtime.is_error()) {
-    return Status::OK();
-  }
-  auto expected_mtime = r_mtime.move_as_ok();
-  conversion = parser.read_all().str();
-  auto r_stat = stat(original_path);
-  uint64 actual_mtime = r_stat.is_ok() ? r_stat.ok().mtime_nsec_ : 0;
-  if (are_modification_times_equal(expected_mtime, actual_mtime)) {
-    LOG(DEBUG) << "File \"" << original_path << "\" modification time " << actual_mtime << " matches";
-    return Status::OK();
-  }
-  return Status::Error(PSLICE() << "FILE_GENERATE_LOCATION_INVALID: File \"" << original_path
-                                << "\" was modified: " << tag("expected modification time", expected_mtime)
-                                << tag("actual modification time", actual_mtime));
-}
-
-void FileGenerateManager::generate_file(QueryId query_id, FullGenerateFileLocation generate_location,
-                                        const LocalFileLocation &local_location, string name,
-                                        unique_ptr<FileGenerateCallback> callback) {
-  LOG(INFO) << "Begin to generate file with " << generate_location;
-  auto mtime_status = check_mtime(generate_location.conversion_, generate_location.original_path_);
-  if (mtime_status.is_error()) {
-    return callback->on_error(std::move(mtime_status));
-  }
-
-  CHECK(query_id != 0);
-  auto it_flag = query_id_to_query_.emplace(query_id, Query{});
-  LOG_CHECK(it_flag.second) << "Query identifier must be unique";
-  auto parent = actor_shared(this, query_id);
-
-  Slice file_id_query = "#file_id#";
-  Slice conversion = generate_location.conversion_;
-
-  auto &query = it_flag.first->second;
-  if (begins_with(conversion, file_id_query)) {
-    auto file_id = FileId(to_integer<int32>(conversion.substr(file_id_query.size())), 0);
-    query.worker_ = create_actor<FileDownloadGenerateActor>("FileDownloadGenerateActor", generate_location.file_type_,
-                                                            file_id, std::move(callback), std::move(parent));
-  } else if (FileManager::is_remotely_generated_file(conversion) && generate_location.original_path_.empty()) {
-    query.worker_ = create_actor<WebFileDownloadGenerateActor>("WebFileDownloadGenerateActor",
-                                                               std::move(generate_location.conversion_),
-                                                               std::move(callback), std::move(parent));
-  } else {
-    query.worker_ = create_actor<FileExternalGenerateActor>("FileExternalGenerationActor", query_id, generate_location,
-                                                            local_location, std::move(name), std::move(callback),
-                                                            std::move(parent));
-  }
-}
-
-void FileGenerateManager::cancel(QueryId query_id) {
-  auto it = query_id_to_query_.find(query_id);
-  if (it == query_id_to_query_.end()) {
-    return;
-  }
-  it->second.worker_.reset();
-}
-
-void FileGenerateManager::external_file_generate_write_part(QueryId query_id, int64 offset, string data,
-                                                            Promise<> promise) {
-  auto it = query_id_to_query_.find(query_id);
-  if (it == query_id_to_query_.end()) {
-    return promise.set_error(Status::Error(400, "Unknown generation_id"));
-  }
-  auto safe_promise = SafePromise<>(std::move(promise), Status::Error(400, "Generation has already been finished"));
-  send_closure(it->second.worker_, &FileGenerateActor::file_generate_write_part, offset, std::move(data),
-               std::move(safe_promise));
-}
-
-void FileGenerateManager::external_file_generate_progress(QueryId query_id, int64 expected_size,
-                                                          int64 local_prefix_size, Promise<> promise) {
-  auto it = query_id_to_query_.find(query_id);
-  if (it == query_id_to_query_.end()) {
-    return promise.set_error(Status::Error(400, "Unknown generation_id"));
-  }
-  auto safe_promise = SafePromise<>(std::move(promise), Status::Error(400, "Generation has already been finished"));
-  send_closure(it->second.worker_, &FileGenerateActor::file_generate_progress, expected_size, local_prefix_size,
-               std::move(safe_promise));
-}
-
-void FileGenerateManager::external_file_generate_finish(QueryId query_id, Status status, Promise<> promise) {
-  auto it = query_id_to_query_.find(query_id);
-  if (it == query_id_to_query_.end()) {
-    return promise.set_error(Status::Error(400, "Unknown generation_id"));
-  }
-  auto safe_promise = SafePromise<>(std::move(promise), Status::Error(400, "Generation has already been finished"));
-  send_closure(it->second.worker_, &FileGenerateActor::file_generate_finish, std::move(status),
-               std::move(safe_promise));
-}
-
-void FileGenerateManager::do_cancel(QueryId query_id) {
-  query_id_to_query_.erase(query_id);
-}
-
-void FileGenerateManager::hangup_shared() {
-  do_cancel(get_link_token());
-  loop();
-}
-
-void FileGenerateManager::hangup() {
-  close_flag_ = true;
-  for (auto &it : query_id_to_query_) {
-    it.second.worker_.reset();
-  }
-  loop();
-}
-
-void FileGenerateManager::loop() {
-  if (close_flag_ && query_id_to_query_.empty()) {
-    stop();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileGenerateManager.h b/third-party/td/td/td/telegram/files/FileGenerateManager.h
deleted file mode 100644
index db4a8eb1c1..0000000000
--- a/third-party/td/td/td/telegram/files/FileGenerateManager.h
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileLocation.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <map>
-
-namespace td {
-
-class FileGenerateActor;
-
-class FileGenerateCallback {
- public:
-  FileGenerateCallback() = default;
-  FileGenerateCallback(const FileGenerateCallback &) = delete;
-  FileGenerateCallback &operator=(const FileGenerateCallback &) = delete;
-  virtual ~FileGenerateCallback() = default;
-
-  virtual void on_partial_generate(PartialLocalFileLocation partial_local, int64 expected_size) = 0;
-  virtual void on_ok(FullLocalFileLocation local) = 0;
-  virtual void on_error(Status error) = 0;
-};
-
-class FileGenerateManager final : public Actor {
- public:
-  using QueryId = uint64;
-
-  explicit FileGenerateManager(ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-
-  void generate_file(QueryId query_id, FullGenerateFileLocation generate_location,
-                     const LocalFileLocation &local_location, string name, unique_ptr<FileGenerateCallback> callback);
-  void cancel(QueryId query_id);
-
-  // external updates about file generation state
-  void external_file_generate_write_part(QueryId query_id, int64 offset, string data, Promise<> promise);
-  void external_file_generate_progress(QueryId query_id, int64 expected_size, int64 local_prefix_size,
-                                       Promise<> promise);
-  void external_file_generate_finish(QueryId query_id, Status status, Promise<> promise);
-
- private:
-  struct Query {
-    Query() = default;
-    Query(const Query &) = delete;
-    Query &operator=(const Query &) = delete;
-    Query(Query &&other) noexcept;
-    Query &operator=(Query &&other) noexcept;
-    ~Query();
-
-    ActorOwn<FileGenerateActor> worker_;
-  };
-
-  ActorShared<> parent_;
-  std::map<QueryId, Query> query_id_to_query_;
-  bool close_flag_ = false;
-
-  void hangup() final;
-  void hangup_shared() final;
-  void loop() final;
-  void do_cancel(QueryId query_id);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileHashUploader.cpp b/third-party/td/td/td/telegram/files/FileHashUploader.cpp
deleted file mode 100644
index 613fe52bee..0000000000
--- a/third-party/td/td/td/telegram/files/FileHashUploader.cpp
+++ /dev/null
@@ -1,149 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileHashUploader.h"
-
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/MimeType.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-void FileHashUploader::start_up() {
-  auto status = init();
-  if (status.is_error()) {
-    callback_->on_error(std::move(status));
-    stop_flag_ = true;
-    return;
-  }
-}
-
-Status FileHashUploader::init() {
-  TRY_RESULT(fd, FileFd::open(local_.path_, FileFd::Read));
-  TRY_RESULT(file_size, fd.get_size());
-  if (file_size != size_) {
-    return Status::Error("Size mismatch");
-  }
-  fd_ = BufferedFd<FileFd>(std::move(fd));
-  sha256_state_.init();
-
-  resource_state_.set_unit_size(1024);
-  resource_state_.update_estimated_limit(size_);
-  return Status::OK();
-}
-
-void FileHashUploader::loop() {
-  if (stop_flag_) {
-    return;
-  }
-
-  auto status = loop_impl();
-  if (status.is_error()) {
-    callback_->on_error(std::move(status));
-    stop_flag_ = true;
-    return;
-  }
-}
-
-Status FileHashUploader::loop_impl() {
-  if (state_ == State::CalcSha) {
-    TRY_STATUS(loop_sha());
-  }
-  if (state_ == State::NetRequest) {
-    // messages.getDocumentByHash#338e2464 sha256:bytes size:long mime_type:string = Document;
-    auto hash = BufferSlice(32);
-    sha256_state_.extract(hash.as_mutable_slice(), true);
-    auto mime_type = MimeType::from_extension(PathView(local_.path_).extension(), "image/gif");
-    auto query = telegram_api::messages_getDocumentByHash(std::move(hash), size_, std::move(mime_type));
-    LOG(INFO) << "Send getDocumentByHash request: " << to_string(query);
-    auto ptr = G()->net_query_creator().create(query);
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(ptr), actor_shared(this));
-    state_ = State::WaitNetResult;
-  }
-  return Status::OK();
-}
-
-Status FileHashUploader::loop_sha() {
-  auto limit = resource_state_.unused();
-  if (limit == 0) {
-    return Status::OK();
-  }
-  if (limit > size_left_) {
-    limit = size_left_;
-  }
-  resource_state_.start_use(limit);
-
-  fd_.get_poll_info().add_flags(PollFlags::Read());
-  TRY_RESULT(read_size, fd_.flush_read(static_cast<size_t>(limit)));
-  if (read_size != static_cast<size_t>(limit)) {
-    return Status::Error("Unexpected end of file");
-  }
-  while (true) {
-    auto ready = fd_.input_buffer().prepare_read();
-    if (ready.empty()) {
-      break;
-    }
-    sha256_state_.feed(ready);
-    fd_.input_buffer().confirm_read(ready.size());
-  }
-  resource_state_.stop_use(limit);
-
-  size_left_ -= narrow_cast<int64>(read_size);
-  CHECK(size_left_ >= 0);
-  if (size_left_ == 0) {
-    state_ = State::NetRequest;
-    return Status::OK();
-  }
-  return Status::OK();
-}
-
-void FileHashUploader::on_result(NetQueryPtr net_query) {
-  auto status = on_result_impl(std::move(net_query));
-  if (status.is_error()) {
-    callback_->on_error(std::move(status));
-    stop_flag_ = true;
-    return;
-  }
-}
-
-Status FileHashUploader::on_result_impl(NetQueryPtr net_query) {
-  TRY_RESULT(res, fetch_result<telegram_api::messages_getDocumentByHash>(std::move(net_query)));
-
-  switch (res->get_id()) {
-    case telegram_api::documentEmpty::ID:
-      return Status::Error("Document is not found by hash");
-    case telegram_api::document::ID: {
-      auto document = move_tl_object_as<telegram_api::document>(res);
-      if (!DcId::is_valid(document->dc_id_)) {
-        return Status::Error("Found document has invalid DcId");
-      }
-      callback_->on_ok(FullRemoteFileLocation(FileType::Document, document->id_, document->access_hash_,
-                                              DcId::internal(document->dc_id_),
-                                              document->file_reference_.as_slice().str()));
-
-      stop_flag_ = true;
-      return Status::OK();
-    }
-    default:
-      UNREACHABLE();
-      return Status::Error("UNREACHABLE");
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileHashUploader.h b/third-party/td/td/td/telegram/files/FileHashUploader.h
deleted file mode 100644
index 8a7e61c11c..0000000000
--- a/third-party/td/td/td/telegram/files/FileHashUploader.h
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileLoaderActor.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/ResourceManager.h"
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/BufferedFd.h"
-#include "td/utils/crypto.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class FileHashUploader final : public FileLoaderActor {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-
-    virtual void on_ok(FullRemoteFileLocation location) = 0;
-    virtual void on_error(Status status) = 0;
-  };
-
-  FileHashUploader(const FullLocalFileLocation &local, int64 size, unique_ptr<Callback> callback)
-      : local_(local), size_(size), size_left_(size), callback_(std::move(callback)) {
-  }
-
- private:
-  ResourceState resource_state_;
-  BufferedFd<FileFd> fd_;
-
-  FullLocalFileLocation local_;
-  int64 size_;
-  int64 size_left_;
-  unique_ptr<Callback> callback_;
-
-  ActorShared<ResourceManager> resource_manager_;
-
-  enum class State : int32 { CalcSha, NetRequest, WaitNetResult } state_ = State::CalcSha;
-  bool stop_flag_ = false;
-  Sha256State sha256_state_;
-
-  void set_resource_manager(ActorShared<ResourceManager> resource_manager) final {
-    resource_manager_ = std::move(resource_manager);
-    send_closure(resource_manager_, &ResourceManager::update_resources, resource_state_);
-  }
-
-  void update_priority(int8 priority) final {
-    send_closure(resource_manager_, &ResourceManager::update_priority, priority);
-  }
-
-  void update_resources(const ResourceState &other) final {
-    if (stop_flag_) {
-      return;
-    }
-    resource_state_.update_slave(other);
-    loop();
-  }
-
-  void start_up() final;
-  Status init();
-
-  void loop() final;
-
-  Status loop_impl();
-
-  Status loop_sha();
-
-  void on_result(NetQueryPtr net_query) final;
-
-  Status on_result_impl(NetQueryPtr net_query);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileId.h b/third-party/td/td/td/telegram/files/FileId.h
deleted file mode 100644
index fd3ee85bd5..0000000000
--- a/third-party/td/td/td/telegram/files/FileId.h
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class FileId {
-  int32 id = 0;
-  int32 remote_id = 0;
-
- public:
-  FileId() = default;
-
-  FileId(int32 file_id, int32 remote_id) : id(file_id), remote_id(remote_id) {
-  }
-  template <class T1, class T2, typename = std::enable_if_t<std::is_convertible<T1, int32>::value>,
-            typename = std::enable_if_t<std::is_convertible<T2, int32>::value>>
-  FileId(T1 file_id, T2 remote_id) = delete;
-
-  bool empty() const {
-    return id <= 0;
-  }
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  int32 get_remote() const {
-    return remote_id;
-  }
-
-  bool operator<(const FileId &other) const {
-    return id < other.id;
-  }
-
-  bool operator==(const FileId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const FileId &other) const {
-    return id != other.id;
-  }
-};
-
-struct FileIdHash {
-  uint32 operator()(FileId file_id) const {
-    return Hash<int32>()(file_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, FileId file_id) {
-  return string_builder << file_id.get() << "(" << file_id.get_remote() << ")";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileId.hpp b/third-party/td/td/td/telegram/files/FileId.hpp
deleted file mode 100644
index 611c1fe82a..0000000000
--- a/third-party/td/td/td/telegram/files/FileId.hpp
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileManager.hpp"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-template <class StorerT>
-void store(const FileId &file_id, StorerT &storer) {
-  storer.context()->td().get_actor_unsafe()->file_manager_->store_file(file_id, storer);
-}
-
-template <class ParserT>
-void parse(FileId &file_id, ParserT &parser) {
-  file_id = parser.context()->td().get_actor_unsafe()->file_manager_->parse_file(parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileLoadManager.cpp b/third-party/td/td/td/telegram/files/FileLoadManager.cpp
deleted file mode 100644
index 76f80cda10..0000000000
--- a/third-party/td/td/td/telegram/files/FileLoadManager.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileLoadManager.h"
-
-#include "td/utils/filesystem.h"
-#include "td/utils/port/path.h"
-
-namespace td {
-
-void FileLoadManager::get_content(string file_path, Promise<BufferSlice> promise) {
-  promise.set_result(read_file(file_path));
-}
-
-void FileLoadManager::read_file_part(string file_path, int64 offset, int64 count, Promise<string> promise) {
-  promise.set_result(read_file_str(file_path, count, offset));
-}
-
-void FileLoadManager::unlink_file(string file_path, Promise<Unit> promise) {
-  unlink(file_path).ignore();
-  promise.set_value(Unit());
-}
-
-void FileLoadManager::check_full_local_location(FullLocalLocationInfo local_info, bool skip_file_size_checks,
-                                                Promise<FullLocalLocationInfo> promise) {
-  promise.set_result(::td::check_full_local_location(std::move(local_info), skip_file_size_checks));
-}
-
-void FileLoadManager::check_partial_local_location(PartialLocalFileLocation partial, Promise<Unit> promise) {
-  auto status = ::td::check_partial_local_location(partial);
-  if (status.is_error()) {
-    promise.set_error(std::move(status));
-  } else {
-    promise.set_value(Unit());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileLoadManager.h b/third-party/td/td/td/telegram/files/FileLoadManager.h
deleted file mode 100644
index 843d5fac71..0000000000
--- a/third-party/td/td/td/telegram/files/FileLoadManager.h
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileLoaderUtils.h"
-#include "td/telegram/files/FileLocation.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class FileLoadManager final : public Actor {
- public:
-  void get_content(string file_path, Promise<BufferSlice> promise);
-
-  void read_file_part(string file_path, int64 offset, int64 count, Promise<string> promise);
-
-  void unlink_file(string file_path, Promise<Unit> promise);
-
-  void check_full_local_location(FullLocalLocationInfo local_info, bool skip_file_size_checks,
-                                 Promise<FullLocalLocationInfo> promise);
-
-  void check_partial_local_location(PartialLocalFileLocation partial, Promise<Unit> promise);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileLoaderActor.h b/third-party/td/td/td/telegram/files/FileLoaderActor.h
deleted file mode 100644
index ec5e179aeb..0000000000
--- a/third-party/td/td/td/telegram/files/FileLoaderActor.h
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/ResourceState.h"
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-namespace td {
-
-class ResourceManager;
-
-class FileLoaderActor : public NetQueryCallback {
- public:
-  virtual void set_resource_manager(ActorShared<ResourceManager> resource_manager) = 0;
-  virtual void update_priority(int8 priority) = 0;
-  virtual void update_resources(const ResourceState &other) = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileLoaderUtils.cpp b/third-party/td/td/td/telegram/files/FileLoaderUtils.cpp
deleted file mode 100644
index 7d88ab94c6..0000000000
--- a/third-party/td/td/td/telegram/files/FileLoaderUtils.cpp
+++ /dev/null
@@ -1,364 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileLoaderUtils.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/utils/common.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/format.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/utf8.h"
-
-#include <tuple>
-
-namespace td {
-
-int VERBOSITY_NAME(file_loader) = VERBOSITY_NAME(DEBUG);
-
-namespace {
-
-Result<std::pair<FileFd, string>> try_create_new_file(CSlice path, CSlice file_name) {
-  LOG(DEBUG) << "Trying to create new file \"" << file_name << "\" in the directory \"" << path << '"';
-  auto name = PSTRING() << path << file_name;
-  auto r_fd = FileFd::open(name, FileFd::Read | FileFd::Write | FileFd::CreateNew, 0640);
-  if (r_fd.is_error()) {
-    auto status = mkdir(path, 0750);
-    if (status.is_error()) {
-      auto r_stat = stat(path);
-      if (r_stat.is_ok() && r_stat.ok().is_dir_) {
-        LOG(ERROR) << "Creation of directory \"" << path << "\" failed with " << status << ", but directory exists";
-      } else {
-        LOG(ERROR) << "Creation of directory \"" << path << "\" failed with " << status;
-      }
-      return r_fd.move_as_error();
-    }
-#if TD_ANDROID
-    FileFd::open(PSLICE() << path << ".nomedia", FileFd::Create | FileFd::Read).ignore();
-#endif
-    r_fd = FileFd::open(name, FileFd::Read | FileFd::Write | FileFd::CreateNew, 0640);
-    if (r_fd.is_error()) {
-      return r_fd.move_as_error();
-    }
-  }
-  return std::make_pair(r_fd.move_as_ok(), std::move(name));
-}
-
-Result<std::pair<FileFd, string>> try_open_file(CSlice name) {
-  LOG(DEBUG) << "Trying to open file " << name;
-  TRY_RESULT(fd, FileFd::open(name, FileFd::Read, 0640));
-  return std::make_pair(std::move(fd), name.str());
-}
-
-struct RandSuff {
-  int len;
-};
-StringBuilder &operator<<(StringBuilder &sb, const RandSuff &) {
-  for (int i = 0; i < 6; i++) {
-    sb << format::hex_digit(Random::fast(0, 15));
-  }
-  return sb;
-}
-
-struct Ext {
-  Slice ext;
-};
-StringBuilder &operator<<(StringBuilder &sb, const Ext &ext) {
-  if (ext.ext.empty()) {
-    return sb;
-  }
-  return sb << "." << ext.ext;
-}
-}  // namespace
-
-Result<std::pair<FileFd, string>> open_temp_file(FileType file_type) {
-  auto pmc = G()->td_db()->get_binlog_pmc();
-  // TODO: CAS?
-  auto file_id = pmc->get("tmp_file_id");
-  pmc->set("tmp_file_id", to_string(to_integer<int32>(file_id) + 1));
-
-  auto temp_dir = get_files_temp_dir(file_type);
-  auto res = try_create_new_file(temp_dir, file_id);
-  if (res.is_error()) {
-    res = try_create_new_file(temp_dir, PSLICE() << file_id << '_' << RandSuff{6});
-  }
-  return res;
-}
-
-template <class F>
-bool for_suggested_file_name(CSlice name, bool use_pmc, bool use_random, F &&callback) {
-  auto cleaned_name = clean_filename(name);
-  PathView path_view(cleaned_name);
-  auto stem = path_view.file_stem();
-  auto ext = path_view.extension();
-  bool active = true;
-  if (!stem.empty() && !G()->get_option_boolean("ignore_file_names")) {
-    active = callback(PSLICE() << stem << Ext{ext});
-    for (int i = 0; active && i < 10; i++) {
-      active = callback(PSLICE() << stem << "_(" << i << ")" << Ext{ext});
-    }
-    for (int i = 2; active && i < 12 && use_random; i++) {
-      active = callback(PSLICE() << stem << "_(" << RandSuff{i} << ")" << Ext{ext});
-    }
-  } else if (use_pmc) {
-    auto pmc = G()->td_db()->get_binlog_pmc();
-    auto file_id = to_integer<int32>(pmc->get("perm_file_id"));
-    pmc->set("perm_file_id", to_string(file_id + 1));
-    active = callback(PSLICE() << "file_" << file_id << Ext{ext});
-    if (active) {
-      active = callback(PSLICE() << "file_" << file_id << "_" << RandSuff{6} << Ext{ext});
-    }
-  }
-  return active;
-}
-
-Result<string> create_from_temp(FileType file_type, CSlice temp_path, CSlice name) {
-  auto dir = get_files_dir(file_type);
-  LOG(INFO) << "Create file of type " << file_type << " in directory " << dir << " with suggested name " << name
-            << " from temporary file " << temp_path;
-  Result<std::pair<FileFd, string>> res = Status::Error(500, "Can't find suitable file name");
-  for_suggested_file_name(name, true, true, [&](CSlice suggested_name) {
-    res = try_create_new_file(dir, suggested_name);
-    return res.is_error();
-  });
-  TRY_RESULT(tmp, std::move(res));
-  tmp.first.close();
-  auto perm_path = std::move(tmp.second);
-  TRY_STATUS(rename(temp_path, perm_path));
-  return perm_path;
-}
-
-Result<string> search_file(FileType file_type, CSlice name, int64 expected_size) {
-  Result<string> res = Status::Error(500, "Can't find suitable file name");
-  auto dir = get_files_dir(file_type);
-  for_suggested_file_name(name, false, false, [&](CSlice suggested_name) {
-    auto r_pair = try_open_file(PSLICE() << dir << suggested_name);
-    if (r_pair.is_error()) {
-      return false;
-    }
-    FileFd fd;
-    string path;
-    std::tie(fd, path) = r_pair.move_as_ok();
-    auto r_size = fd.get_size();
-    if (r_size.is_error() || r_size.ok() != expected_size) {
-      return true;
-    }
-    fd.close();
-    res = std::move(path);
-    return false;
-  });
-  return res;
-}
-
-Result<string> get_suggested_file_name(CSlice directory, Slice file_name) {
-  string cleaned_name = clean_filename(file_name.str());
-  file_name = cleaned_name;
-
-  if (directory.empty()) {
-    directory = CSlice("./");
-  }
-
-  auto dir_stat = stat(directory);
-  if (dir_stat.is_error() || !dir_stat.ok().is_dir_) {
-    return cleaned_name;
-  }
-
-  PathView path_view(file_name);
-  auto stem = path_view.file_stem();
-  auto ext = path_view.extension();
-
-  if (stem.empty()) {
-    return cleaned_name;
-  }
-
-  Slice directory_slice = directory;
-  while (directory_slice.size() > 1 && (directory_slice.back() == '/' || directory_slice.back() == '\\')) {
-    directory_slice.remove_suffix(1);
-  }
-
-  auto check_file_name = [directory_slice](Slice name) {
-    return stat(PSLICE() << directory_slice << TD_DIR_SLASH << name).is_error();  // in case of success, the name is bad
-  };
-
-  string checked_name = PSTRING() << stem << Ext{ext};
-  if (check_file_name(checked_name)) {
-    return checked_name;
-  }
-
-  for (int i = 1; i < 100; i++) {
-    checked_name = PSTRING() << stem << " (" << i << ")" << Ext{ext};
-    if (check_file_name(checked_name)) {
-      return checked_name;
-    }
-  }
-
-  return PSTRING() << stem << " - " << StringBuilder::FixedDouble(Clocks::system(), 3) << Ext{ext};
-}
-
-Result<FullLocalFileLocation> save_file_bytes(FileType file_type, BufferSlice bytes, CSlice file_name) {
-  auto r_old_path = search_file(file_type, file_name, bytes.size());
-  if (r_old_path.is_ok()) {
-    auto r_old_bytes = read_file(r_old_path.ok());
-    if (r_old_bytes.is_ok() && r_old_bytes.ok().as_slice() == bytes.as_slice()) {
-      LOG(INFO) << "Found previous file with the same name " << r_old_path.ok();
-      return FullLocalFileLocation(file_type, r_old_path.ok(), 0);
-    }
-  }
-
-  TRY_RESULT(fd_path, open_temp_file(file_type));
-  FileFd fd = std::move(fd_path.first);
-  string path = std::move(fd_path.second);
-
-  TRY_RESULT(size, fd.write(bytes.as_slice()));
-  fd.close();
-
-  if (size != bytes.size()) {
-    return Status::Error("Failed to write bytes to the file");
-  }
-
-  TRY_RESULT(perm_path, create_from_temp(file_type, path, file_name));
-
-  return FullLocalFileLocation(file_type, std::move(perm_path), 0);
-}
-
-static Slice get_file_base_dir(const FileDirType &file_dir_type) {
-  switch (file_dir_type) {
-    case FileDirType::Secure:
-      return G()->get_secure_files_dir();
-    case FileDirType::Common:
-      return G()->get_files_dir();
-    default:
-      UNREACHABLE();
-      return Slice();
-  }
-}
-
-Slice get_files_base_dir(FileType file_type) {
-  return get_file_base_dir(get_file_dir_type(file_type));
-}
-
-string get_files_temp_dir(FileType file_type) {
-  return PSTRING() << get_files_base_dir(file_type) << "temp" << TD_DIR_SLASH;
-}
-
-string get_files_dir(FileType file_type) {
-  return PSTRING() << get_files_base_dir(file_type) << get_file_type_name(file_type) << TD_DIR_SLASH;
-}
-
-bool are_modification_times_equal(int64 old_mtime, int64 new_mtime) {
-  if (old_mtime == new_mtime) {
-    return true;
-  }
-  if (old_mtime < new_mtime) {
-    return false;
-  }
-  if (old_mtime - new_mtime == 1000000000 && old_mtime % 1000000000 == 0 && new_mtime % 2000000000 == 0) {
-    // FAT32 has 2 seconds mtime resolution, but file system sometimes reports odd modification time
-    return true;
-  }
-  return false;
-}
-
-Result<FullLocalLocationInfo> check_full_local_location(FullLocalLocationInfo local_info, bool skip_file_size_checks) {
-  constexpr int64 MAX_FILE_SIZE = static_cast<int64>(4000) << 20 /* 4000 MB */;
-  constexpr int64 MAX_THUMBNAIL_SIZE = 200 * (1 << 10) - 1 /* 200 KB - 1 B */;
-  constexpr int64 MAX_PHOTO_SIZE = 10 * (1 << 20) /* 10 MB */;
-  constexpr int64 DEFAULT_VIDEO_NOTE_SIZE_MAX = 12 * (1 << 20) /* 12 MB */;
-  constexpr int64 MAX_VIDEO_STORY_SIZE = 30 * (1 << 20) /* 30 MB */;
-
-  FullLocalFileLocation &location = local_info.location_;
-  int64 &size = local_info.size_;
-  if (location.path_.empty()) {
-    return Status::Error(400, "File must have non-empty path");
-  }
-  auto r_path = realpath(location.path_, true);
-  if (r_path.is_error()) {
-    return Status::Error(400, "Can't find real file path");
-  }
-  location.path_ = r_path.move_as_ok();
-
-  auto r_stat = stat(location.path_);
-  if (r_stat.is_error()) {
-    return Status::Error(400, "Can't get stat about the file");
-  }
-  auto stat = r_stat.move_as_ok();
-  if (!stat.is_reg_) {
-    return Status::Error(400, "File must be a regular file");
-  }
-  if (stat.size_ < 0) {
-    // TODO is it possible?
-    return Status::Error(400, "File is too big");
-  }
-  if (stat.size_ == 0) {
-    return Status::Error(400, "File must be non-empty");
-  }
-
-  if (size <= 0) {
-    size = stat.size_;
-  } else if (size != stat.size_) {
-    VLOG(file_loader) << "File \"" << location.path_ << "\" was modified: old size = " << size
-                      << ", new size = " << stat.size_;
-    return Status::Error(400, "File size has changed");
-  }
-  if (location.mtime_nsec_ == 0) {
-    VLOG(file_loader) << "Set file \"" << location.path_ << "\" modification time to " << stat.mtime_nsec_;
-    location.mtime_nsec_ = stat.mtime_nsec_;
-  } else if (!are_modification_times_equal(location.mtime_nsec_, stat.mtime_nsec_)) {
-    VLOG(file_loader) << "File \"" << location.path_ << "\" was modified: old mtime = " << location.mtime_nsec_
-                      << ", new mtime = " << stat.mtime_nsec_;
-    return Status::Error(400, PSLICE() << "File \"" << utf8_encode(location.path_) << "\" was modified");
-  }
-  if (skip_file_size_checks) {
-    return std::move(local_info);
-  }
-
-  auto get_file_size_error = [&](Slice reason) {
-    return Status::Error(400, PSLICE() << "File \"" << utf8_encode(location.path_) << "\" of size " << size
-                                       << " bytes is too big" << reason);
-  };
-  if ((location.file_type_ == FileType::Thumbnail || location.file_type_ == FileType::EncryptedThumbnail) &&
-      size > MAX_THUMBNAIL_SIZE && !begins_with(PathView(location.path_).file_name(), "map") &&
-      !begins_with(PathView(location.path_).file_name(), "Album cover for ")) {
-    return get_file_size_error(" for a thumbnail");
-  }
-  if (size > MAX_FILE_SIZE) {
-    return get_file_size_error("");
-  }
-  if (get_file_type_class(location.file_type_) == FileTypeClass::Photo && size > MAX_PHOTO_SIZE) {
-    return get_file_size_error(" for a photo");
-  }
-  if ((location.file_type_ == FileType::VideoNote || location.file_type_ == FileType::SelfDestructingVideoNote) &&
-      size > G()->get_option_integer("video_note_size_max", DEFAULT_VIDEO_NOTE_SIZE_MAX)) {
-    return get_file_size_error(" for a video note");
-  }
-  if (location.file_type_ == FileType::VideoStory && size > MAX_VIDEO_STORY_SIZE) {
-    return get_file_size_error(" for a video story");
-  }
-  return std::move(local_info);
-}
-
-Status check_partial_local_location(const PartialLocalFileLocation &location) {
-  TRY_RESULT(stat, stat(location.path_));
-  if (!stat.is_reg_) {
-    if (stat.is_dir_) {
-      return Status::Error(PSLICE() << "Can't use directory \"" << location.path_ << "\" as a file path");
-    }
-    return Status::Error("File must be a regular file");
-  }
-  // can't check mtime. Hope nobody will mess with the file in our temporary directory
-  return Status::OK();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileLoaderUtils.h b/third-party/td/td/td/telegram/files/FileLoaderUtils.h
deleted file mode 100644
index 6d6b95060a..0000000000
--- a/third-party/td/td/td/telegram/files/FileLoaderUtils.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileType.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-extern int VERBOSITY_NAME(file_loader);
-
-Result<std::pair<FileFd, string>> open_temp_file(FileType file_type) TD_WARN_UNUSED_RESULT;
-
-Result<string> create_from_temp(FileType file_type, CSlice temp_path, CSlice name) TD_WARN_UNUSED_RESULT;
-
-Result<string> search_file(FileType type, CSlice name, int64 expected_size) TD_WARN_UNUSED_RESULT;
-
-Result<string> get_suggested_file_name(CSlice dir, Slice file_name) TD_WARN_UNUSED_RESULT;
-
-Result<FullLocalFileLocation> save_file_bytes(FileType file_type, BufferSlice bytes, CSlice file_name);
-
-Slice get_files_base_dir(FileType file_type);
-
-string get_files_temp_dir(FileType file_type);
-
-string get_files_dir(FileType file_type);
-
-bool are_modification_times_equal(int64 old_mtime, int64 new_mtime);
-
-struct FullLocalLocationInfo {
-  FullLocalFileLocation location_;
-  int64 size_ = 0;
-
-  FullLocalLocationInfo(const FullLocalFileLocation &location, int64 size) : location_(location), size_(size) {
-  }
-};
-
-Result<FullLocalLocationInfo> check_full_local_location(FullLocalLocationInfo local_info, bool skip_file_size_checks);
-
-Status check_partial_local_location(const PartialLocalFileLocation &location);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileLocation.h b/third-party/td/td/td/telegram/files/FileLocation.h
deleted file mode 100644
index c5f26554e0..0000000000
--- a/third-party/td/td/td/telegram/files/FileLocation.h
+++ /dev/null
@@ -1,939 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileBitmask.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Variant.h"
-
-#include <tuple>
-#include <utility>
-
-namespace td {
-
-class FileReferenceView {
- public:
-  static Slice invalid_file_reference() {
-    return Slice("#");
-  }
-};
-
-struct EmptyRemoteFileLocation {
-  template <class StorerT>
-  void store(StorerT &storer) const {
-  }
-  template <class ParserT>
-  void parse(ParserT &parser) {
-  }
-};
-
-inline bool operator==(const EmptyRemoteFileLocation &lhs, const EmptyRemoteFileLocation &rhs) {
-  return true;
-}
-
-inline bool operator!=(const EmptyRemoteFileLocation &lhs, const EmptyRemoteFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-struct PartialRemoteFileLocation {
-  int64 file_id_;
-  int32 part_count_;
-  int32 part_size_;
-  int32 ready_part_count_;
-  int32 is_big_;
-  int64 ready_size_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-inline bool operator==(const PartialRemoteFileLocation &lhs, const PartialRemoteFileLocation &rhs) {
-  return lhs.file_id_ == rhs.file_id_ && lhs.part_count_ == rhs.part_count_ && lhs.part_size_ == rhs.part_size_ &&
-         lhs.ready_part_count_ == rhs.ready_part_count_ && lhs.is_big_ == rhs.is_big_ &&
-         lhs.ready_size_ == rhs.ready_size_;
-}
-
-inline bool operator!=(const PartialRemoteFileLocation &lhs, const PartialRemoteFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const PartialRemoteFileLocation &location) {
-  return sb << '[' << (location.is_big_ ? "Big" : "Small") << " partial remote location with " << location.part_count_
-            << " parts of size " << location.part_size_ << " with " << location.ready_part_count_
-            << " ready parts of total size " << location.ready_size_ << ']';
-}
-
-struct PhotoRemoteFileLocation {
-  int64 id_;
-  int64 access_hash_;
-  PhotoSizeSource source_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  struct AsKey {
-    const PhotoRemoteFileLocation &key;
-    bool is_unique;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-  };
-  AsKey as_key(bool is_unique) const {
-    return AsKey{*this, is_unique};
-  }
-
-  bool operator<(const PhotoRemoteFileLocation &other) const {
-    if (id_ != other.id_) {
-      return id_ < other.id_;
-    }
-    return PhotoSizeSource::unique_less(source_, other.source_);
-  }
-
-  bool operator==(const PhotoRemoteFileLocation &other) const {
-    return id_ == other.id_ && PhotoSizeSource::unique_equal(source_, other.source_);
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const PhotoRemoteFileLocation &location) {
-  return string_builder << "[ID = " << location.id_ << ", access_hash = " << location.access_hash_ << ", "
-                        << location.source_ << "]";
-}
-
-struct WebRemoteFileLocation {
-  string url_;
-  int64 access_hash_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  struct AsKey {
-    const WebRemoteFileLocation &key;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-  };
-  AsKey as_key(bool /*is_unique*/) const {
-    return AsKey{*this};
-  }
-
-  bool operator<(const WebRemoteFileLocation &other) const {
-    return url_ < other.url_;
-  }
-  bool operator==(const WebRemoteFileLocation &other) const {
-    return url_ == other.url_;
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const WebRemoteFileLocation &location) {
-  return string_builder << "[URL = " << location.url_ << ", access_hash = " << location.access_hash_ << "]";
-}
-
-struct CommonRemoteFileLocation {
-  int64 id_;
-  int64 access_hash_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  struct AsKey {
-    const CommonRemoteFileLocation &key;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-  };
-  AsKey as_key(bool /*is_unique*/) const {
-    return AsKey{*this};
-  }
-
-  bool operator<(const CommonRemoteFileLocation &other) const {
-    return id_ < other.id_;
-  }
-  bool operator==(const CommonRemoteFileLocation &other) const {
-    return id_ == other.id_;
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const CommonRemoteFileLocation &location) {
-  return string_builder << "[ID = " << location.id_ << ", access_hash = " << location.access_hash_ << "]";
-}
-
-class FullRemoteFileLocation {
- public:
-  FileType file_type_{FileType::None};
-
- private:
-  static constexpr int32 WEB_LOCATION_FLAG = 1 << 24;
-  static constexpr int32 FILE_REFERENCE_FLAG = 1 << 25;
-  DcId dc_id_;
-  string file_reference_;
-  enum class LocationType : int32 { Web, Photo, Common, None };
-  Variant<WebRemoteFileLocation, PhotoRemoteFileLocation, CommonRemoteFileLocation> variant_;
-
-  LocationType location_type() const {
-    if (is_web()) {
-      return LocationType::Web;
-    }
-    switch (get_file_type_class(file_type_)) {
-      case FileTypeClass::Photo:
-        return LocationType::Photo;
-      case FileTypeClass::Document:
-      case FileTypeClass::Secure:
-      case FileTypeClass::Encrypted:
-        return LocationType::Common;
-      case FileTypeClass::Temp:
-        return LocationType::None;
-      default:
-        UNREACHABLE();
-        return LocationType::None;
-    }
-  }
-
-  WebRemoteFileLocation &web() {
-    return variant_.get<WebRemoteFileLocation>();
-  }
-  PhotoRemoteFileLocation &photo() {
-    return variant_.get<PhotoRemoteFileLocation>();
-  }
-  CommonRemoteFileLocation &common() {
-    return variant_.get<CommonRemoteFileLocation>();
-  }
-  const WebRemoteFileLocation &web() const {
-    return variant_.get<WebRemoteFileLocation>();
-  }
-  const PhotoRemoteFileLocation &photo() const {
-    return variant_.get<PhotoRemoteFileLocation>();
-  }
-  const CommonRemoteFileLocation &common() const {
-    return variant_.get<CommonRemoteFileLocation>();
-  }
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder,
-                                   const FullRemoteFileLocation &full_remote_file_location);
-
-  int32 key_type() const {
-    auto type = static_cast<int32>(file_type_);
-    if (is_web()) {
-      type |= WEB_LOCATION_FLAG;
-    }
-    return type;
-  }
-
-  void check_file_reference() {
-    if (file_reference_ == FileReferenceView::invalid_file_reference()) {
-      LOG(ERROR) << "Tried to register file with invalid file reference";
-      file_reference_.clear();
-    }
-  }
-
- public:
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  struct AsKey {
-    const FullRemoteFileLocation &key;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-  };
-  AsKey as_key() const {
-    return AsKey{*this};
-  }
-
-  struct AsUnique {
-    const FullRemoteFileLocation &key;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-  };
-  AsUnique as_unique() const {
-    return AsUnique{*this};
-  }
-
-  DcId get_dc_id() const {
-    CHECK(!is_web());
-    return dc_id_;
-  }
-
-  int64 get_access_hash() const {
-    switch (location_type()) {
-      case LocationType::Photo:
-        return photo().access_hash_;
-      case LocationType::Common:
-        return common().access_hash_;
-      case LocationType::Web:
-        return web().access_hash_;
-      case LocationType::None:
-      default:
-        UNREACHABLE();
-        return 0;
-    }
-  }
-
-  int64 get_id() const {
-    switch (location_type()) {
-      case LocationType::Photo:
-        return photo().id_;
-      case LocationType::Common:
-        return common().id_;
-      case LocationType::Web:
-      case LocationType::None:
-      default:
-        UNREACHABLE();
-        return 0;
-    }
-  }
-
-  PhotoSizeSource get_source() const {
-    switch (location_type()) {
-      case LocationType::Photo:
-        return photo().source_;
-      case LocationType::Common:
-      case LocationType::Web:
-        return PhotoSizeSource::full_legacy(0, 0, 0);
-      case LocationType::None:
-      default:
-        UNREACHABLE();
-        return PhotoSizeSource::full_legacy(0, 0, 0);
-    }
-  }
-
-  void set_source(PhotoSizeSource source) {
-    CHECK(is_photo());
-    file_type_ = source.get_file_type("set_source");
-    photo().source_ = std::move(source);
-  }
-
-  bool delete_file_reference(Slice bad_file_reference) {
-    if (file_reference_ != FileReferenceView::invalid_file_reference() && file_reference_ == bad_file_reference) {
-      file_reference_ = FileReferenceView::invalid_file_reference().str();
-      return true;
-    }
-    return false;
-  }
-
-  bool has_file_reference() const {
-    return file_reference_ != FileReferenceView::invalid_file_reference();
-  }
-
-  Slice get_file_reference() const {
-    return file_reference_;
-  }
-
-  string get_url() const {
-    if (is_web()) {
-      return web().url_;
-    }
-
-    return string();
-  }
-
-  bool is_web() const {
-    return variant_.get_offset() == 0;
-  }
-  bool is_photo() const {
-    return location_type() == LocationType::Photo;
-  }
-  bool is_common() const {
-    return location_type() == LocationType::Common;
-  }
-  bool is_encrypted_secret() const {
-    return file_type_ == FileType::Encrypted;
-  }
-  bool is_encrypted_secure() const {
-    return file_type_ == FileType::SecureEncrypted;
-  }
-  bool is_encrypted_any() const {
-    return is_encrypted_secret() || is_encrypted_secure();
-  }
-  bool is_secure() const {
-    return file_type_ == FileType::SecureDecrypted || file_type_ == FileType::SecureEncrypted;
-  }
-  bool is_document() const {
-    return is_common() && !is_secure() && !is_encrypted_secret();
-  }
-
-#define as_input_web_file_location() as_input_web_file_location_impl(__FILE__, __LINE__)
-  tl_object_ptr<telegram_api::inputWebFileLocation> as_input_web_file_location_impl(const char *file, int line) const {
-    LOG_CHECK(is_web()) << file << ' ' << line;
-    return make_tl_object<telegram_api::inputWebFileLocation>(web().url_, web().access_hash_);
-  }
-
-  tl_object_ptr<telegram_api::InputFileLocation> as_input_file_location() const {
-    switch (location_type()) {
-      case LocationType::Photo: {
-        const auto &id = photo().id_;
-        const auto &access_hash = photo().access_hash_;
-        const auto &source = photo().source_;
-        switch (source.get_type("as_input_file_location")) {
-          case PhotoSizeSource::Type::Legacy:
-            UNREACHABLE();
-            break;
-          case PhotoSizeSource::Type::Thumbnail: {
-            auto &thumbnail = source.thumbnail();
-            switch (thumbnail.file_type) {
-              case FileType::Photo:
-              case FileType::PhotoStory:
-              case FileType::SelfDestructingPhoto:
-                return make_tl_object<telegram_api::inputPhotoFileLocation>(
-                    id, access_hash, BufferSlice(file_reference_),
-                    std::string(1, static_cast<char>(static_cast<uint8>(thumbnail.thumbnail_type.type))));
-              case FileType::Thumbnail:
-                return make_tl_object<telegram_api::inputDocumentFileLocation>(
-                    id, access_hash, BufferSlice(file_reference_),
-                    std::string(1, static_cast<char>(static_cast<uint8>(thumbnail.thumbnail_type.type))));
-              default:
-                UNREACHABLE();
-                break;
-            }
-            break;
-          }
-          case PhotoSizeSource::Type::DialogPhotoSmall:
-          case PhotoSizeSource::Type::DialogPhotoBig: {
-            auto &dialog_photo = source.dialog_photo();
-            bool is_big = source.get_type("as_input_file_location 2") == PhotoSizeSource::Type::DialogPhotoBig;
-            return make_tl_object<telegram_api::inputPeerPhotoFileLocation>(0, is_big, dialog_photo.get_input_peer(),
-                                                                            id);
-          }
-          case PhotoSizeSource::Type::StickerSetThumbnail:
-            UNREACHABLE();
-            break;
-          case PhotoSizeSource::Type::FullLegacy: {
-            const auto &full_legacy = source.full_legacy();
-            return make_tl_object<telegram_api::inputPhotoLegacyFileLocation>(
-                id, access_hash, BufferSlice(file_reference_), full_legacy.volume_id, full_legacy.local_id,
-                full_legacy.secret);
-          }
-          case PhotoSizeSource::Type::DialogPhotoSmallLegacy:
-          case PhotoSizeSource::Type::DialogPhotoBigLegacy: {
-            auto &dialog_photo = source.dialog_photo_legacy();
-            bool is_big = source.get_type("as_input_file_location 3") == PhotoSizeSource::Type::DialogPhotoBigLegacy;
-            return make_tl_object<telegram_api::inputPeerPhotoFileLocationLegacy>(
-                0, is_big, dialog_photo.get_input_peer(), dialog_photo.volume_id, dialog_photo.local_id);
-          }
-          case PhotoSizeSource::Type::StickerSetThumbnailLegacy: {
-            auto &sticker_set_thumbnail = source.sticker_set_thumbnail_legacy();
-            return make_tl_object<telegram_api::inputStickerSetThumbLegacy>(
-                sticker_set_thumbnail.get_input_sticker_set(), sticker_set_thumbnail.volume_id,
-                sticker_set_thumbnail.local_id);
-          }
-          case PhotoSizeSource::Type::StickerSetThumbnailVersion: {
-            auto &sticker_set_thumbnail = source.sticker_set_thumbnail_version();
-            return make_tl_object<telegram_api::inputStickerSetThumb>(sticker_set_thumbnail.get_input_sticker_set(),
-                                                                      sticker_set_thumbnail.version);
-          }
-          default:
-            break;
-        }
-        UNREACHABLE();
-        return nullptr;
-      }
-      case LocationType::Common:
-        if (is_encrypted_secret()) {
-          return make_tl_object<telegram_api::inputEncryptedFileLocation>(common().id_, common().access_hash_);
-        } else if (is_secure()) {
-          return make_tl_object<telegram_api::inputSecureFileLocation>(common().id_, common().access_hash_);
-        } else {
-          return make_tl_object<telegram_api::inputDocumentFileLocation>(common().id_, common().access_hash_,
-                                                                         BufferSlice(file_reference_), string());
-        }
-      case LocationType::Web:
-      case LocationType::None:
-      default:
-        UNREACHABLE();
-        return nullptr;
-    }
-  }
-
-#define as_input_document() as_input_document_impl(__FILE__, __LINE__)
-  tl_object_ptr<telegram_api::inputDocument> as_input_document_impl(const char *file, int line) const {
-    LOG_CHECK(is_common()) << file << ' ' << line;
-    LOG_CHECK(is_document()) << file << ' ' << line;
-    return make_tl_object<telegram_api::inputDocument>(common().id_, common().access_hash_,
-                                                       BufferSlice(file_reference_));
-  }
-
-#define as_input_photo() as_input_photo_impl(__FILE__, __LINE__)
-  tl_object_ptr<telegram_api::inputPhoto> as_input_photo_impl(const char *file, int line) const {
-    LOG_CHECK(is_photo()) << file << ' ' << line;
-    return make_tl_object<telegram_api::inputPhoto>(photo().id_, photo().access_hash_, BufferSlice(file_reference_));
-  }
-
-  tl_object_ptr<telegram_api::inputEncryptedFile> as_input_encrypted_file() const {
-    CHECK(is_encrypted_secret());
-    return make_tl_object<telegram_api::inputEncryptedFile>(common().id_, common().access_hash_);
-  }
-
-#define as_input_secure_file() as_input_secure_file_impl(__FILE__, __LINE__)
-  tl_object_ptr<telegram_api::inputSecureFile> as_input_secure_file_impl(const char *file, int line) const {
-    LOG_CHECK(is_secure()) << file << ' ' << line;
-    return make_tl_object<telegram_api::inputSecureFile>(common().id_, common().access_hash_);
-  }
-
-  // this constructor is just for immediate unserialize
-  FullRemoteFileLocation() = default;
-
-  // photo
-  FullRemoteFileLocation(const PhotoSizeSource &source, int64 id, int64 access_hash, DcId dc_id,
-                         std::string file_reference)
-      : file_type_(source.get_file_type("FullRemoteFileLocation"))
-      , dc_id_(dc_id)
-      , file_reference_(std::move(file_reference))
-      , variant_(PhotoRemoteFileLocation{id, access_hash, source}) {
-    CHECK(is_photo());
-    check_file_reference();
-  }
-
-  // document
-  FullRemoteFileLocation(FileType file_type, int64 id, int64 access_hash, DcId dc_id, std::string file_reference)
-      : file_type_(file_type)
-      , dc_id_(dc_id)
-      , file_reference_(std::move(file_reference))
-      , variant_(CommonRemoteFileLocation{id, access_hash}) {
-    CHECK(is_common());
-    check_file_reference();
-  }
-
-  // web document
-  FullRemoteFileLocation(FileType file_type, string url, int64 access_hash)
-      : file_type_(file_type), dc_id_(), variant_(WebRemoteFileLocation{std::move(url), access_hash}) {
-    CHECK(is_web());
-    CHECK(!web().url_.empty());
-  }
-
-  bool operator<(const FullRemoteFileLocation &other) const {
-    if (!(variant_ == other.variant_)) {
-      return variant_ < other.variant_;
-    }
-    if (file_type_ != other.file_type_) {
-      return file_type_ < other.file_type_;
-    }
-    return dc_id_ < other.dc_id_;
-  }
-
-  bool operator==(const FullRemoteFileLocation &other) const {
-    return variant_ == other.variant_ && file_type_ == other.file_type_ && dc_id_ == other.dc_id_;
-  }
-
-  static const int32 KEY_MAGIC = 0x64374632;
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder,
-                                 const FullRemoteFileLocation &full_remote_file_location) {
-  string_builder << '[' << full_remote_file_location.file_type_;
-  if (!full_remote_file_location.is_web()) {
-    string_builder << ", " << full_remote_file_location.get_dc_id();
-  }
-  if (!full_remote_file_location.file_reference_.empty()) {
-    string_builder << ", " << tag("file_reference", base64_encode(full_remote_file_location.file_reference_));
-  }
-
-  string_builder << ", location = ";
-  if (full_remote_file_location.is_web()) {
-    string_builder << full_remote_file_location.web();
-  } else if (full_remote_file_location.is_photo()) {
-    string_builder << full_remote_file_location.photo();
-  } else if (full_remote_file_location.is_common()) {
-    string_builder << full_remote_file_location.common();
-  }
-
-  return string_builder << ']';
-}
-
-class RemoteFileLocation {
- public:
-  enum class Type : int32 { Empty, Partial, Full };
-
-  Type type() const {
-    return static_cast<Type>(variant_.get_offset());
-  }
-
-  PartialRemoteFileLocation &partial() {
-    return variant_.get<1>();
-  }
-  FullRemoteFileLocation &full() {
-    return variant_.get<2>();
-  }
-  const PartialRemoteFileLocation &partial() const {
-    return variant_.get<1>();
-  }
-  const FullRemoteFileLocation &full() const {
-    return variant_.get<2>();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  RemoteFileLocation() : variant_{EmptyRemoteFileLocation{}} {
-  }
-  explicit RemoteFileLocation(FullRemoteFileLocation full) : variant_(std::move(full)) {
-  }
-  explicit RemoteFileLocation(PartialRemoteFileLocation partial) : variant_(std::move(partial)) {
-  }
-
- private:
-  Variant<EmptyRemoteFileLocation, PartialRemoteFileLocation, FullRemoteFileLocation> variant_;
-
-  friend bool operator==(const RemoteFileLocation &lhs, const RemoteFileLocation &rhs);
-
-  bool is_empty() const {
-    switch (type()) {
-      case Type::Empty:
-        return true;
-      case Type::Partial:
-        return partial().ready_part_count_ == 0;
-      case Type::Full:
-        return false;
-      default:
-        UNREACHABLE();
-        return false;
-    }
-  }
-};
-
-inline bool operator==(const RemoteFileLocation &lhs, const RemoteFileLocation &rhs) {
-  if (lhs.is_empty() && rhs.is_empty()) {
-    return true;
-  }
-  return lhs.variant_ == rhs.variant_;
-}
-
-inline bool operator!=(const RemoteFileLocation &lhs, const RemoteFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const RemoteFileLocation &location) {
-  switch (location.type()) {
-    case RemoteFileLocation::Type::Empty:
-      return sb << "[empty remote location]";
-    case RemoteFileLocation::Type::Partial:
-      return sb << location.partial();
-    case RemoteFileLocation::Type::Full:
-      return sb << location.full();
-    default:
-      UNREACHABLE();
-      return sb;
-  }
-}
-
-struct EmptyLocalFileLocation {
-  template <class StorerT>
-  void store(StorerT &storer) const {
-  }
-  template <class ParserT>
-  void parse(ParserT &parser) {
-  }
-};
-
-inline bool operator==(const EmptyLocalFileLocation &lhs, const EmptyLocalFileLocation &rhs) {
-  return true;
-}
-
-inline bool operator!=(const EmptyLocalFileLocation &lhs, const EmptyLocalFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-struct PartialLocalFileLocation {
-  FileType file_type_;
-  int64 part_size_;
-  string path_;
-  string iv_;
-  string ready_bitmask_;
-  int64 ready_size_;  // calculated from ready_bitmask_ and final size of the file
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-inline bool operator==(const PartialLocalFileLocation &lhs, const PartialLocalFileLocation &rhs) {
-  return lhs.file_type_ == rhs.file_type_ && lhs.path_ == rhs.path_ && lhs.part_size_ == rhs.part_size_ &&
-         lhs.iv_ == rhs.iv_ && lhs.ready_bitmask_ == rhs.ready_bitmask_ && lhs.ready_size_ == rhs.ready_size_;
-}
-
-inline bool operator!=(const PartialLocalFileLocation &lhs, const PartialLocalFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const PartialLocalFileLocation &location) {
-  return sb << "[partial local location of " << location.file_type_ << " with part size " << location.part_size_
-            << " and ready parts " << Bitmask(Bitmask::Decode{}, location.ready_bitmask_) << " of size "
-            << location.ready_size_ << "] at \"" << location.path_ << '"';
-}
-
-struct FullLocalFileLocation {
-  FileType file_type_;
-  string path_;
-  uint64 mtime_nsec_;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  const FullLocalFileLocation &as_key() const {
-    return *this;
-  }
-
-  FullLocalFileLocation() : file_type_(FileType::None), path_(), mtime_nsec_() {
-  }
-  FullLocalFileLocation(FileType file_type, string path, uint64 mtime_nsec)
-      : file_type_(file_type), path_(std::move(path)), mtime_nsec_(mtime_nsec) {
-  }
-
-  static const int32 KEY_MAGIC = 0x84373817;
-};
-
-inline bool operator<(const FullLocalFileLocation &lhs, const FullLocalFileLocation &rhs) {
-  return std::tie(lhs.mtime_nsec_, lhs.file_type_, lhs.path_) < std::tie(rhs.mtime_nsec_, rhs.file_type_, rhs.path_);
-}
-
-inline bool operator==(const FullLocalFileLocation &lhs, const FullLocalFileLocation &rhs) {
-  return std::tie(lhs.mtime_nsec_, lhs.file_type_, lhs.path_) == std::tie(rhs.mtime_nsec_, rhs.file_type_, rhs.path_);
-}
-
-inline bool operator!=(const FullLocalFileLocation &lhs, const FullLocalFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const FullLocalFileLocation &location) {
-  return sb << "[full local location of " << location.file_type_ << "] at \"" << location.path_ << '"';
-}
-
-struct PartialLocalFileLocationPtr {
-  unique_ptr<PartialLocalFileLocation> location_;  // must never be equal to nullptr
-
-  PartialLocalFileLocationPtr() : location_(make_unique<PartialLocalFileLocation>()) {
-  }
-  explicit PartialLocalFileLocationPtr(PartialLocalFileLocation location)
-      : location_(make_unique<PartialLocalFileLocation>(std::move(location))) {
-  }
-  PartialLocalFileLocationPtr(const PartialLocalFileLocationPtr &other)
-      : location_(make_unique<PartialLocalFileLocation>(*other.location_)) {
-  }
-  PartialLocalFileLocationPtr &operator=(const PartialLocalFileLocationPtr &other) {
-    if (this != &other) {
-      *location_ = *other.location_;
-    }
-    return *this;
-  }
-  PartialLocalFileLocationPtr(PartialLocalFileLocationPtr &&other) noexcept
-      : location_(make_unique<PartialLocalFileLocation>(std::move(*other.location_))) {
-  }
-  PartialLocalFileLocationPtr &operator=(PartialLocalFileLocationPtr &&other) noexcept {
-    *location_ = std::move(*other.location_);
-    return *this;
-  }
-  ~PartialLocalFileLocationPtr() = default;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-};
-
-inline bool operator==(const PartialLocalFileLocationPtr &lhs, const PartialLocalFileLocationPtr &rhs) {
-  return *lhs.location_ == *rhs.location_;
-}
-
-class LocalFileLocation {
- public:
-  enum class Type : int32 { Empty, Partial, Full };
-
-  Type type() const {
-    return static_cast<Type>(variant_.get_offset());
-  }
-
-  PartialLocalFileLocation &partial() {
-    return *variant_.get<1>().location_;
-  }
-  FullLocalFileLocation &full() {
-    return variant_.get<2>();
-  }
-  const PartialLocalFileLocation &partial() const {
-    return *variant_.get<1>().location_;
-  }
-  const FullLocalFileLocation &full() const {
-    return variant_.get<2>();
-  }
-
-  CSlice file_name() const {
-    switch (type()) {
-      case Type::Partial:
-        return partial().path_;
-      case Type::Full:
-        return full().path_;
-      case Type::Empty:
-      default:
-        return CSlice();
-    }
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  LocalFileLocation() : variant_{EmptyLocalFileLocation()} {
-  }
-  explicit LocalFileLocation(PartialLocalFileLocation partial)
-      : variant_(PartialLocalFileLocationPtr(std::move(partial))) {
-  }
-  explicit LocalFileLocation(FullLocalFileLocation full) : variant_(std::move(full)) {
-  }
-  LocalFileLocation(FileType file_type, string path, uint64 mtime_nsec)
-      : variant_(FullLocalFileLocation{file_type, std::move(path), mtime_nsec}) {
-  }
-
- private:
-  Variant<EmptyLocalFileLocation, PartialLocalFileLocationPtr, FullLocalFileLocation> variant_;
-
-  friend bool operator==(const LocalFileLocation &lhs, const LocalFileLocation &rhs);
-};
-
-inline bool operator==(const LocalFileLocation &lhs, const LocalFileLocation &rhs) {
-  return lhs.variant_ == rhs.variant_;
-}
-
-inline bool operator!=(const LocalFileLocation &lhs, const LocalFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const LocalFileLocation &location) {
-  switch (location.type()) {
-    case LocalFileLocation::Type::Empty:
-      return sb << "[empty local location]";
-    case LocalFileLocation::Type::Partial:
-      return sb << location.partial();
-    case LocalFileLocation::Type::Full:
-      return sb << location.full();
-    default:
-      UNREACHABLE();
-      return sb;
-  }
-}
-
-struct FullGenerateFileLocation {
-  FileType file_type_{FileType::None};
-  string original_path_;
-  string conversion_;
-  static const int32 KEY_MAGIC = 0x8b60a1c8;
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  const FullGenerateFileLocation &as_key() const {
-    return *this;
-  }
-  FullGenerateFileLocation() = default;
-  FullGenerateFileLocation(FileType file_type, string original_path, string conversion)
-      : file_type_(file_type), original_path_(std::move(original_path)), conversion_(std::move(conversion)) {
-  }
-};
-
-inline bool operator<(const FullGenerateFileLocation &lhs, const FullGenerateFileLocation &rhs) {
-  return std::tie(lhs.file_type_, lhs.original_path_, lhs.conversion_) <
-         std::tie(rhs.file_type_, rhs.original_path_, rhs.conversion_);
-}
-
-inline bool operator==(const FullGenerateFileLocation &lhs, const FullGenerateFileLocation &rhs) {
-  return std::tie(lhs.file_type_, lhs.original_path_, lhs.conversion_) ==
-         std::tie(rhs.file_type_, rhs.original_path_, rhs.conversion_);
-}
-
-inline bool operator!=(const FullGenerateFileLocation &lhs, const FullGenerateFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-inline StringBuilder &operator<<(StringBuilder &string_builder,
-                                 const FullGenerateFileLocation &full_generated_file_location) {
-  return string_builder << '[' << tag("file_type", full_generated_file_location.file_type_)
-                        << tag("original_path", full_generated_file_location.original_path_)
-                        << tag("conversion", full_generated_file_location.conversion_) << ']';
-}
-
-class GenerateFileLocation {
- public:
-  enum class Type : int32 { Empty, Full };
-
-  Type type() const {
-    return type_;
-  }
-
-  FullGenerateFileLocation &full() {
-    CHECK(type_ == Type::Full);
-    return full_;
-  }
-  const FullGenerateFileLocation &full() const {
-    CHECK(type_ == Type::Full);
-    return full_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
-  GenerateFileLocation() : type_(Type::Empty) {
-  }
-
-  explicit GenerateFileLocation(const FullGenerateFileLocation &full) : type_(Type::Full), full_(full) {
-  }
-
-  GenerateFileLocation(FileType file_type, string original_path, string conversion)
-      : type_(Type::Full), full_{file_type, std::move(original_path), std::move(conversion)} {
-  }
-
- private:
-  Type type_;
-  FullGenerateFileLocation full_;
-};
-
-inline bool operator==(const GenerateFileLocation &lhs, const GenerateFileLocation &rhs) {
-  if (lhs.type() != rhs.type()) {
-    return false;
-  }
-  switch (lhs.type()) {
-    case GenerateFileLocation::Type::Empty:
-      return true;
-    case GenerateFileLocation::Type::Full:
-      return lhs.full() == rhs.full();
-  }
-  UNREACHABLE();
-  return false;
-}
-
-inline bool operator!=(const GenerateFileLocation &lhs, const GenerateFileLocation &rhs) {
-  return !(lhs == rhs);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileLocation.hpp b/third-party/td/td/td/telegram/files/FileLocation.hpp
deleted file mode 100644
index aae3d70ab9..0000000000
--- a/third-party/td/td/td/telegram/files/FileLocation.hpp
+++ /dev/null
@@ -1,434 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileLocation.h"
-
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/PhotoSizeSource.hpp"
-#include "td/telegram/Version.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/Variant.h"
-
-namespace td {
-
-template <class StorerT>
-void PartialRemoteFileLocation::store(StorerT &storer) const {
-  using td::store;
-  store(file_id_, storer);
-  store(part_count_, storer);
-  store(part_size_, storer);
-  store(ready_part_count_, storer);
-  store(is_big_, storer);
-}
-
-template <class ParserT>
-void PartialRemoteFileLocation::parse(ParserT &parser) {
-  using td::parse;
-  parse(file_id_, parser);
-  parse(part_count_, parser);
-  parse(part_size_, parser);
-  parse(ready_part_count_, parser);
-  parse(is_big_, parser);
-}
-
-template <class StorerT>
-void PhotoRemoteFileLocation::store(StorerT &storer) const {
-  using td::store;
-  store(id_, storer);
-  store(access_hash_, storer);
-  store(source_, storer);
-}
-
-template <class ParserT>
-void PhotoRemoteFileLocation::parse(ParserT &parser) {
-  using td::parse;
-  parse(id_, parser);
-  parse(access_hash_, parser);
-  if (parser.version() >= static_cast<int32>(Version::RemovePhotoVolumeAndLocalId)) {
-    parse(source_, parser);
-  } else {
-    int64 volume_id;
-    PhotoSizeSource source;
-    int32 local_id;
-    parse(volume_id, parser);
-    if (parser.version() >= static_cast<int32>(Version::AddPhotoSizeSource)) {
-      parse(source, parser);
-      parse(local_id, parser);
-    } else {
-      int64 secret;
-      parse(secret, parser);
-      parse(local_id, parser);
-      source = PhotoSizeSource::full_legacy(volume_id, local_id, secret);
-    }
-
-    if (parser.get_error() != nullptr) {
-      return;
-    }
-
-    switch (source.get_type("PhotoRemoteFileLocation::parse")) {
-      case PhotoSizeSource::Type::Legacy:
-        source_ = PhotoSizeSource::full_legacy(volume_id, local_id, source.legacy().secret);
-        break;
-      case PhotoSizeSource::Type::FullLegacy:
-      case PhotoSizeSource::Type::Thumbnail:
-        source_ = source;
-        break;
-      case PhotoSizeSource::Type::DialogPhotoSmall:
-      case PhotoSizeSource::Type::DialogPhotoBig: {
-        auto &dialog_photo = source.dialog_photo();
-        bool is_big = source.get_type("PhotoRemoteFileLocation::parse") == PhotoSizeSource::Type::DialogPhotoBig;
-        source_ = PhotoSizeSource::dialog_photo_legacy(dialog_photo.dialog_id, dialog_photo.dialog_access_hash, is_big,
-                                                       volume_id, local_id);
-        break;
-      }
-      case PhotoSizeSource::Type::StickerSetThumbnail: {
-        auto &sticker_set_thumbnail = source.sticker_set_thumbnail();
-        source_ = PhotoSizeSource::sticker_set_thumbnail_legacy(
-            sticker_set_thumbnail.sticker_set_id, sticker_set_thumbnail.sticker_set_access_hash, volume_id, local_id);
-        break;
-      }
-      default:
-        parser.set_error("Invalid PhotoSizeSource in legacy PhotoRemoteFileLocation");
-        break;
-    }
-  }
-}
-
-template <class StorerT>
-void PhotoRemoteFileLocation::AsKey::store(StorerT &storer) const {
-  using td::store;
-  auto unique = key.source_.get_unique("PhotoRemoteFileLocation::AsKey::store");
-  switch (key.source_.get_type("PhotoRemoteFileLocation::AsKey::store")) {
-    case PhotoSizeSource::Type::Legacy:
-    case PhotoSizeSource::Type::StickerSetThumbnail:
-      UNREACHABLE();
-      break;
-    case PhotoSizeSource::Type::FullLegacy:
-    case PhotoSizeSource::Type::DialogPhotoSmallLegacy:
-    case PhotoSizeSource::Type::DialogPhotoBigLegacy:
-    case PhotoSizeSource::Type::StickerSetThumbnailLegacy:  // 12/20 bytes
-      if (!is_unique) {
-        store(key.id_, storer);
-      }
-      storer.store_slice(unique);  // volume_id + local_id
-      break;
-    case PhotoSizeSource::Type::DialogPhotoSmall:
-    case PhotoSizeSource::Type::DialogPhotoBig:
-    case PhotoSizeSource::Type::Thumbnail:  // 8 + 1 bytes
-      store(key.id_, storer);               // photo_id or document_id
-      storer.store_slice(unique);
-      break;
-    case PhotoSizeSource::Type::StickerSetThumbnailVersion:  // 13 bytes
-      // sticker set thumbnails have no photo_id or document_id
-      storer.store_slice(unique);
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-}
-
-template <class StorerT>
-void WebRemoteFileLocation::store(StorerT &storer) const {
-  using td::store;
-  store(url_, storer);
-  store(access_hash_, storer);
-}
-
-template <class ParserT>
-void WebRemoteFileLocation::parse(ParserT &parser) {
-  using td::parse;
-  parse(url_, parser);
-  parse(access_hash_, parser);
-}
-
-template <class StorerT>
-void WebRemoteFileLocation::AsKey::store(StorerT &storer) const {
-  td::store(key.url_, storer);
-}
-
-template <class StorerT>
-void CommonRemoteFileLocation::store(StorerT &storer) const {
-  using td::store;
-  store(id_, storer);
-  store(access_hash_, storer);
-}
-
-template <class ParserT>
-void CommonRemoteFileLocation::parse(ParserT &parser) {
-  using td::parse;
-  parse(id_, parser);
-  parse(access_hash_, parser);
-}
-
-template <class StorerT>
-void CommonRemoteFileLocation::AsKey::store(StorerT &storer) const {
-  td::store(key.id_, storer);
-}
-
-template <class StorerT>
-void FullRemoteFileLocation::store(StorerT &storer) const {
-  using ::td::store;
-  bool has_file_reference = !file_reference_.empty();
-  auto type = key_type();
-  if (has_file_reference) {
-    type |= FILE_REFERENCE_FLAG;
-  }
-  store(type, storer);
-  store(dc_id_.get_value(), storer);
-  if (has_file_reference) {
-    store(file_reference_, storer);
-  }
-  variant_.visit([&](auto &&value) {
-    using td::store;
-    store(value, storer);
-  });
-}
-
-template <class ParserT>
-void FullRemoteFileLocation::parse(ParserT &parser) {
-  using ::td::parse;
-  int32 raw_type;
-  parse(raw_type, parser);
-  bool is_web = (raw_type & WEB_LOCATION_FLAG) != 0;
-  raw_type &= ~WEB_LOCATION_FLAG;
-  bool has_file_reference = (raw_type & FILE_REFERENCE_FLAG) != 0;
-  raw_type &= ~FILE_REFERENCE_FLAG;
-  if (raw_type < 0 || raw_type >= static_cast<int32>(FileType::Size)) {
-    return parser.set_error("Invalid FileType in FullRemoteFileLocation");
-  }
-  file_type_ = static_cast<FileType>(raw_type);
-  int32 dc_id_value;
-  parse(dc_id_value, parser);
-  dc_id_ = DcId::from_value(dc_id_value);
-
-  if (has_file_reference) {
-    parse(file_reference_, parser);
-    if (file_reference_ == FileReferenceView::invalid_file_reference()) {
-      file_reference_.clear();
-    }
-  }
-  if (is_web) {
-    variant_ = WebRemoteFileLocation();
-    return web().parse(parser);
-  }
-
-  switch (location_type()) {
-    case LocationType::Web:
-      UNREACHABLE();
-      break;
-    case LocationType::Photo:
-      variant_ = PhotoRemoteFileLocation();
-      photo().parse(parser);
-      if (parser.get_error() != nullptr) {
-        return;
-      }
-      switch (photo().source_.get_type("FullRemoteFileLocation::parse")) {
-        case PhotoSizeSource::Type::Legacy:
-        case PhotoSizeSource::Type::FullLegacy:
-          break;
-        case PhotoSizeSource::Type::Thumbnail:
-          if (photo().source_.get_file_type("FullRemoteFileLocation::parse") != file_type_ ||
-              (file_type_ != FileType::Photo && file_type_ != FileType::PhotoStory &&
-               file_type_ != FileType::SelfDestructingPhoto && file_type_ != FileType::Thumbnail &&
-               file_type_ != FileType::EncryptedThumbnail)) {
-            parser.set_error("Invalid FileType in PhotoRemoteFileLocation Thumbnail");
-          }
-          break;
-        case PhotoSizeSource::Type::DialogPhotoSmall:
-        case PhotoSizeSource::Type::DialogPhotoBig:
-        case PhotoSizeSource::Type::DialogPhotoSmallLegacy:
-        case PhotoSizeSource::Type::DialogPhotoBigLegacy:
-          if (file_type_ != FileType::ProfilePhoto) {
-            parser.set_error("Invalid FileType in PhotoRemoteFileLocation DialogPhoto");
-          }
-          break;
-        case PhotoSizeSource::Type::StickerSetThumbnail:
-        case PhotoSizeSource::Type::StickerSetThumbnailLegacy:
-        case PhotoSizeSource::Type::StickerSetThumbnailVersion:
-          if (file_type_ != FileType::Thumbnail) {
-            parser.set_error("Invalid FileType in PhotoRemoteFileLocation StickerSetThumbnail");
-          }
-          break;
-        default:
-          UNREACHABLE();
-          break;
-      }
-      return;
-    case LocationType::Common:
-      variant_ = CommonRemoteFileLocation();
-      return common().parse(parser);
-    case LocationType::None:
-      break;
-  }
-  parser.set_error("Invalid FileType in FullRemoteFileLocation");
-}
-
-template <class StorerT>
-void FullRemoteFileLocation::AsKey::store(StorerT &storer) const {
-  using td::store;
-  store(key.key_type(), storer);
-  key.variant_.visit([&](auto &&value) {
-    using td::store;
-    store(value.as_key(false), storer);
-  });
-}
-
-template <class StorerT>
-void FullRemoteFileLocation::AsUnique::store(StorerT &storer) const {
-  using td::store;
-
-  int32 type = [key = &key] {
-    if (key->is_web()) {
-      return 0;
-    }
-    return static_cast<int32>(get_file_type_class(key->file_type_)) + 1;
-  }();
-  store(type, storer);
-  key.variant_.visit([&](auto &&value) {
-    using td::store;
-    store(value.as_key(true), storer);
-  });
-}
-
-template <class StorerT>
-void RemoteFileLocation::store(StorerT &storer) const {
-  td::store(variant_, storer);
-}
-
-template <class ParserT>
-void RemoteFileLocation::parse(ParserT &parser) {
-  td::parse(variant_, parser);
-}
-
-template <class StorerT>
-void PartialLocalFileLocation::store(StorerT &storer) const {
-  using td::store;
-  store(file_type_, storer);
-  store(path_, storer);
-  store(static_cast<int32>(part_size_ & 0x7FFFFFFF), storer);
-  int32 deprecated_ready_part_count = part_size_ > 0x7FFFFFFF ? -2 : -1;
-  store(deprecated_ready_part_count, storer);
-  store(iv_, storer);
-  store(ready_bitmask_, storer);
-  if (deprecated_ready_part_count == -2) {
-    CHECK(part_size_ < (static_cast<int64>(1) << 62));
-    store(static_cast<int32>(part_size_ >> 31), storer);
-  }
-}
-
-template <class ParserT>
-void PartialLocalFileLocation::parse(ParserT &parser) {
-  using td::parse;
-  parse(file_type_, parser);
-  if (file_type_ < FileType::Thumbnail || file_type_ >= FileType::Size) {
-    return parser.set_error("Invalid type in PartialLocalFileLocation");
-  }
-  parse(path_, parser);
-  int32 part_size_low;
-  parse(part_size_low, parser);
-  part_size_ = part_size_low;
-  int32 deprecated_ready_part_count;
-  parse(deprecated_ready_part_count, parser);
-  parse(iv_, parser);
-  if (deprecated_ready_part_count == -1 || deprecated_ready_part_count == -2) {
-    parse(ready_bitmask_, parser);
-    if (deprecated_ready_part_count == -2) {
-      int32 part_size_high;
-      parse(part_size_high, parser);
-      part_size_ += static_cast<int64>(part_size_high) << 31;
-    }
-  } else {
-    CHECK(0 <= deprecated_ready_part_count);
-    CHECK(deprecated_ready_part_count <= (1 << 22));
-    ready_bitmask_ = Bitmask(Bitmask::Ones{}, deprecated_ready_part_count).encode();
-  }
-}
-
-template <class StorerT>
-void FullLocalFileLocation::store(StorerT &storer) const {
-  using td::store;
-  store(file_type_, storer);
-  store(mtime_nsec_, storer);
-  store(path_, storer);
-}
-
-template <class ParserT>
-void FullLocalFileLocation::parse(ParserT &parser) {
-  using td::parse;
-  parse(file_type_, parser);
-  if (file_type_ < FileType::Thumbnail || file_type_ >= FileType::Size) {
-    return parser.set_error("Invalid type in FullLocalFileLocation");
-  }
-  parse(mtime_nsec_, parser);
-  parse(path_, parser);
-}
-
-template <class StorerT>
-void PartialLocalFileLocationPtr::store(StorerT &storer) const {
-  td::store(*location_, storer);
-}
-
-template <class ParserT>
-void PartialLocalFileLocationPtr::parse(ParserT &parser) {
-  td::parse(*location_, parser);
-}
-
-template <class StorerT>
-void LocalFileLocation::store(StorerT &storer) const {
-  td::store(variant_, storer);
-}
-
-template <class ParserT>
-void LocalFileLocation::parse(ParserT &parser) {
-  td::parse(variant_, parser);
-}
-
-template <class StorerT>
-void FullGenerateFileLocation::store(StorerT &storer) const {
-  using td::store;
-  store(file_type_, storer);
-  store(original_path_, storer);
-  store(conversion_, storer);
-}
-
-template <class ParserT>
-void FullGenerateFileLocation::parse(ParserT &parser) {
-  using td::parse;
-  parse(file_type_, parser);
-  parse(original_path_, parser);
-  parse(conversion_, parser);
-}
-
-template <class StorerT>
-void GenerateFileLocation::store(StorerT &storer) const {
-  td::store(type_, storer);
-  switch (type_) {
-    case Type::Empty:
-      return;
-    case Type::Full:
-      return td::store(full_, storer);
-  }
-}
-
-template <class ParserT>
-void GenerateFileLocation::parse(ParserT &parser) {
-  td::parse(type_, parser);
-  switch (type_) {
-    case Type::Empty:
-      return;
-    case Type::Full:
-      return td::parse(full_, parser);
-  }
-  return parser.set_error("Invalid type in GenerateFileLocation");
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileManager.cpp b/third-party/td/td/td/telegram/files/FileManager.cpp
deleted file mode 100644
index 832a7c55b9..0000000000
--- a/third-party/td/td/td/telegram/files/FileManager.cpp
+++ /dev/null
@@ -1,5242 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileManager.h"
-
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/DownloadManager.h"
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/files/FileData.h"
-#include "td/telegram/files/FileDb.h"
-#include "td/telegram/files/FileLoaderUtils.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileLocation.hpp"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/misc.h"
-#include "td/telegram/SecureStorage.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/Version.h"
-
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/crypto.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/format.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-
-#include <algorithm>
-#include <cmath>
-#include <limits>
-#include <numeric>
-#include <tuple>
-#include <utility>
-
-namespace td {
-namespace {
-constexpr int64 MAX_FILE_SIZE = static_cast<int64>(4000) << 20;  // 4000MB
-}  // namespace
-
-int VERBOSITY_NAME(update_file) = VERBOSITY_NAME(INFO);
-
-StringBuilder &operator<<(StringBuilder &string_builder, FileLocationSource source) {
-  switch (source) {
-    case FileLocationSource::None:
-      return string_builder << "None";
-    case FileLocationSource::FromUser:
-      return string_builder << "User";
-    case FileLocationSource::FromBinlog:
-      return string_builder << "Binlog";
-    case FileLocationSource::FromDatabase:
-      return string_builder << "Database";
-    case FileLocationSource::FromServer:
-      return string_builder << "Server";
-    default:
-      UNREACHABLE();
-      return string_builder << "Unknown";
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NewRemoteFileLocation &location) {
-  if (location.is_full_alive) {
-    string_builder << "alive ";
-  }
-  if (location.full) {
-    string_builder << location.full.value();
-  } else {
-    string_builder << "[no location]";
-  }
-  return string_builder << " from " << location.full_source;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, FileManager::DownloadQuery::Type type) {
-  switch (type) {
-    case FileManager::DownloadQuery::Type::DownloadWaitFileReference:
-      return string_builder << "DownloadWaitFileReference";
-    case FileManager::DownloadQuery::Type::DownloadReloadDialog:
-      return string_builder << "DownloadReloadDialog";
-    case FileManager::DownloadQuery::Type::Download:
-      return string_builder << "Download";
-    case FileManager::DownloadQuery::Type::SetContent:
-      return string_builder << "SetContent";
-    default:
-      UNREACHABLE();
-      return string_builder << "Unknown";
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, FileManager::UploadQuery::Type type) {
-  switch (type) {
-    case FileManager::UploadQuery::Type::UploadByHash:
-      return string_builder << "UploadByHash";
-    case FileManager::UploadQuery::Type::UploadWaitFileReference:
-      return string_builder << "UploadWaitFileReference";
-    case FileManager::UploadQuery::Type::Upload:
-      return string_builder << "Upload";
-    default:
-      UNREACHABLE();
-      return string_builder << "Unknown";
-  }
-}
-
-NewRemoteFileLocation::NewRemoteFileLocation(RemoteFileLocation remote, FileLocationSource source) {
-  switch (remote.type()) {
-    case RemoteFileLocation::Type::Empty:
-      break;
-    case RemoteFileLocation::Type::Partial:
-      partial = make_unique<PartialRemoteFileLocation>(remote.partial());
-      break;
-    case RemoteFileLocation::Type::Full:
-      full = remote.full();
-      full_source = source;
-      is_full_alive = true;
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-RemoteFileLocation NewRemoteFileLocation::partial_or_empty() const {
-  if (partial) {
-    return RemoteFileLocation(*partial);
-  }
-  return {};
-}
-
-class FileManager::FileInfoLocal final : public FileManager::FileInfo {
-  FullLocalFileLocation location_;
-  int64 size_ = 0;
-  unique_ptr<PartialRemoteFileLocation> partial_remote_location_;
-  FileIdInfo *remote_file_info_ = nullptr;
-
- public:
-  FileInfoLocal(FullLocalFileLocation location, int64 size) : location_(std::move(location)), size_(size) {
-  }
-
-  FileInfoType get_file_info_type() const final {
-    return FileInfoType::Local;
-  }
-
-  FileType get_file_type() const final {
-    return location_.file_type_;
-  }
-
-  int64 get_local_size() const final {
-    return size_;
-  }
-
-  int64 get_remote_size() const final {
-    if (remote_file_info_ != nullptr) {
-      if (remote_file_info_->file_info_ != nullptr) {
-        return remote_file_info_->file_info_->get_remote_size();
-      }
-      return 0;
-    }
-    if (partial_remote_location_ != nullptr) {
-      return partial_remote_location_->ready_size_;
-    }
-    return 0;
-  }
-
-  int64 get_size() const final {
-    return size_;
-  }
-
-  int64 get_expected_size(bool) const final {
-    return size_;
-  }
-
-  const FullLocalFileLocation *get_local_location() const final {
-    return &location_;
-  }
-
-  const FullGenerateFileLocation *get_generate_location() const final {
-    return nullptr;
-  }
-
-  const FullRemoteFileLocation *get_remote_location() const final {
-    if (remote_file_info_ != nullptr && remote_file_info_->file_info_ != nullptr) {
-      return remote_file_info_->file_info_->get_remote_location();
-    }
-    return nullptr;
-  }
-
-  const string *get_url() const final {
-    return nullptr;
-  }
-
-  string get_path() const final {
-    return location_.path_;
-  }
-
-  string get_suggested_path() const final {
-    return location_.path_;
-  }
-
-  string get_remote_name() const final {
-    return string();
-  }
-
-  string get_persistent_file_id() const final {
-    return string();
-  }
-
-  string get_unique_file_id() const final {
-    return string();
-  }
-
-  bool can_be_deleted() const final {
-    return begins_with(location_.path_, get_files_dir(get_file_type()));
-  }
-
-  void set_size(int64 size) final {
-    UNREACHABLE();
-  }
-
-  void set_expected_size(int64 expected_size) final {
-    UNREACHABLE();
-  }
-
-  void delete_file_reference(Slice file_reference) final {
-    if (remote_file_info_ != nullptr && remote_file_info_->file_info_ != nullptr) {
-      remote_file_info_->file_info_->delete_file_reference(file_reference);
-    }
-  }
-};
-
-class FileManager::FileInfoGenerate final : public FileManager::FileInfo {
-  FullGenerateFileLocation location_;
-  int64 expected_size_ = 0;
-  string url_;
-  unique_ptr<PartialLocalFileLocation> partial_local_location_;
-  unique_ptr<PartialRemoteFileLocation> partial_remote_location_;
-  FileIdInfo *local_file_info_ = nullptr;
-
- public:
-  FileInfoGenerate(FullGenerateFileLocation location, int64 expected_size, string url)
-      : location_(std::move(location)), expected_size_(expected_size), url_(std::move(url)) {
-  }
-
-  FileInfoType get_file_info_type() const final {
-    return FileInfoType::Generate;
-  }
-
-  FileType get_file_type() const final {
-    return location_.file_type_;
-  }
-
-  int64 get_local_size() const final {
-    if (local_file_info_ != nullptr) {
-      if (local_file_info_->file_info_ != nullptr) {
-        return local_file_info_->file_info_->get_local_size();
-      }
-      return 0;
-    }
-    if (partial_local_location_ != nullptr) {
-      return partial_local_location_->ready_size_;
-    }
-    return 0;
-  }
-
-  int64 get_remote_size() const final {
-    if (local_file_info_ != nullptr) {
-      if (local_file_info_->file_info_ != nullptr) {
-        return local_file_info_->file_info_->get_remote_size();
-      }
-      return 0;
-    }
-    if (partial_remote_location_ != nullptr) {
-      return partial_remote_location_->ready_size_;
-    }
-    return 0;
-  }
-
-  int64 get_size() const final {
-    if (local_file_info_ == nullptr) {
-      return 0;
-    }
-    if (local_file_info_->file_info_ != nullptr) {
-      return local_file_info_->file_info_->get_size();
-    }
-    return 0;
-  }
-
-  int64 get_expected_size(bool may_guess) const final {
-    if (local_file_info_ != nullptr) {
-      if (local_file_info_->file_info_ != nullptr) {
-        return local_file_info_->file_info_->get_size();
-      }
-      return 0;
-    }
-    int64 current_size = 0;
-    if (partial_local_location_ != nullptr) {
-      current_size = partial_local_location_->ready_size_;
-    }
-    if (expected_size_ != 0) {
-      return max(current_size, expected_size_);
-    }
-    return may_guess ? current_size * 3 : current_size;
-  }
-
-  const FullLocalFileLocation *get_local_location() const final {
-    if (local_file_info_ != nullptr && local_file_info_->file_info_ != nullptr) {
-      return local_file_info_->file_info_->get_local_location();
-    }
-    return nullptr;
-  }
-
-  const FullGenerateFileLocation *get_generate_location() const final {
-    return &location_;
-  }
-
-  const FullRemoteFileLocation *get_remote_location() const final {
-    if (local_file_info_ != nullptr && local_file_info_->file_info_ != nullptr) {
-      return local_file_info_->file_info_->get_remote_location();
-    }
-    return nullptr;
-  }
-
-  const string *get_url() const final {
-    return url_.empty() ? nullptr : &url_;
-  }
-
-  string get_path() const final {
-    if (local_file_info_ != nullptr) {
-      if (local_file_info_->file_info_ != nullptr) {
-        return local_file_info_->file_info_->get_path();
-      }
-      return string();
-    }
-    if (partial_local_location_ != nullptr) {
-      return partial_local_location_->path_;
-    }
-    return string();
-  }
-
-  string get_suggested_path() const final {
-    if (!url_.empty()) {
-      return get_url_file_name(url_);
-    }
-    return location_.original_path_;
-  }
-
-  string get_remote_name() const final {
-    return string();
-  }
-
-  string get_persistent_file_id() const final {
-    if (!url_.empty()) {
-      return url_;
-    }
-    if (FileManager::is_remotely_generated_file(location_.conversion_)) {
-      return FileNode::get_persistent_id(location_);
-    }
-    return string();
-  }
-
-  string get_unique_file_id() const final {
-    if (FileManager::is_remotely_generated_file(location_.conversion_)) {
-      return FileNode::get_unique_id(location_);
-    }
-    return string();
-  }
-
-  bool can_be_deleted() const final {
-    if (local_file_info_ != nullptr) {
-      if (local_file_info_->file_info_ != nullptr) {
-        return local_file_info_->file_info_->can_be_deleted();
-      }
-      return false;
-    }
-    return partial_local_location_ != nullptr;
-  }
-
-  void set_size(int64 size) final {
-    UNREACHABLE();
-  }
-
-  void set_expected_size(int64 expected_size) final {
-    if (expected_size_ != expected_size) {
-      expected_size_ = expected_size;
-      on_changed();
-    }
-  }
-
-  void delete_file_reference(Slice file_reference) final {
-    if (local_file_info_ != nullptr && local_file_info_->file_info_ != nullptr) {
-      local_file_info_->file_info_->delete_file_reference(file_reference);
-    }
-  }
-};
-
-class FileManager::FileInfoRemote final : public FileManager::FileInfo {
-  FullRemoteFileLocation location_;
-  int64 size_ = 0;
-  int64 expected_size_ = 0;
-  string remote_name_;
-  string url_;
-  unique_ptr<PartialLocalFileLocation> partial_local_location_;
-  FileIdInfo *local_file_info_ = nullptr;
-
- public:
-  FileInfoRemote(FullRemoteFileLocation location, int64 size, int64 expected_size, string remote_name, string url)
-      : location_(std::move(location))
-      , size_(size)
-      , expected_size_(expected_size)
-      , remote_name_(std::move(remote_name))
-      , url_(std::move(url)) {
-  }
-
-  FileInfoType get_file_info_type() const final {
-    return FileInfoType::Remote;
-  }
-
-  FileType get_file_type() const final {
-    return location_.file_type_;
-  }
-
-  int64 get_local_size() const final {
-    if (local_file_info_ != nullptr) {
-      if (local_file_info_->file_info_ != nullptr) {
-        return local_file_info_->file_info_->get_local_size();
-      }
-      return 0;
-    }
-    if (partial_local_location_ != nullptr) {
-      return partial_local_location_->ready_size_;
-    }
-    return 0;
-  }
-
-  int64 get_remote_size() const final {
-    return size_;
-  }
-
-  int64 get_size() const final {
-    return size_;
-  }
-
-  int64 get_expected_size(bool) const final {
-    if (size_ != 0) {
-      return size_;
-    }
-    if (partial_local_location_ != nullptr) {
-      return max(partial_local_location_->ready_size_, expected_size_);
-    }
-    return expected_size_;
-  }
-
-  const FullLocalFileLocation *get_local_location() const final {
-    if (local_file_info_ != nullptr && local_file_info_->file_info_ != nullptr) {
-      return local_file_info_->file_info_->get_local_location();
-    }
-    return nullptr;
-  }
-
-  const FullGenerateFileLocation *get_generate_location() const final {
-    return nullptr;
-  }
-
-  const FullRemoteFileLocation *get_remote_location() const final {
-    return &location_;
-  }
-
-  const string *get_url() const final {
-    return url_.empty() ? nullptr : &url_;
-  }
-
-  string get_path() const final {
-    if (local_file_info_ != nullptr) {
-      if (local_file_info_->file_info_ != nullptr) {
-        return local_file_info_->file_info_->get_path();
-      }
-      return string();
-    }
-    if (partial_local_location_ != nullptr) {
-      return partial_local_location_->path_;
-    }
-    return string();
-  }
-
-  string get_suggested_path() const final {
-    if (!remote_name_.empty()) {
-      return remote_name_;
-    }
-    if (!url_.empty()) {
-      return get_url_file_name(url_);
-    }
-    return string();
-  }
-
-  string get_remote_name() const final {
-    return remote_name_;
-  }
-
-  string get_persistent_file_id() const final {
-    return FileNode::get_persistent_id(location_);
-  }
-
-  string get_unique_file_id() const final {
-    if (location_.is_web()) {
-      return string();
-    }
-    return FileNode::get_unique_id(location_);
-  }
-
-  bool can_be_deleted() const final {
-    if (local_file_info_ != nullptr) {
-      if (local_file_info_->file_info_ != nullptr) {
-        return local_file_info_->file_info_->can_be_deleted();
-      }
-      return false;
-    }
-    return partial_local_location_ != nullptr;
-  }
-
-  void set_size(int64 size) final {
-    if (size_ != size) {
-      size_ = size;
-      on_changed();
-    }
-  }
-
-  void set_expected_size(int64 expected_size) final {
-    UNREACHABLE();
-  }
-
-  void delete_file_reference(Slice file_reference) final {
-    if (!location_.delete_file_reference(file_reference)) {
-      VLOG(file_references) << "Can't delete unmatching file reference " << format::escaped(file_reference) << ", have "
-                            << format::escaped(location_.get_file_reference());
-    } else {
-      on_database_changed();
-    }
-  }
-};
-
-FileNode *FileNodePtr::operator->() const {
-  return get();
-}
-
-FileNode &FileNodePtr::operator*() const {
-  return *get();
-}
-
-FileNode *FileNodePtr::get() const {
-  auto res = get_unsafe();
-  CHECK(res);
-  return res;
-}
-
-FullRemoteFileLocation *FileNodePtr::get_remote() const {
-  return file_manager_->get_remote(file_id_.get_remote());
-}
-
-FileNode *FileNodePtr::get_unsafe() const {
-  CHECK(file_manager_ != nullptr);
-  return file_manager_->get_file_node_raw(file_id_);
-}
-
-FileNodePtr::operator bool() const noexcept {
-  return file_manager_ != nullptr && get_unsafe() != nullptr;
-}
-
-void FileNode::recalc_ready_prefix_size(int64 prefix_offset, int64 ready_prefix_size) {
-  if (local_.type() != LocalFileLocation::Type::Partial) {
-    return;
-  }
-  int64 new_local_ready_prefix_size;
-  if (download_offset_ == prefix_offset) {
-    new_local_ready_prefix_size = ready_prefix_size;
-  } else {
-    new_local_ready_prefix_size = Bitmask(Bitmask::Decode{}, local_.partial().ready_bitmask_)
-                                      .get_ready_prefix_size(download_offset_, local_.partial().part_size_, size_);
-  }
-  if (new_local_ready_prefix_size != local_ready_prefix_size_) {
-    VLOG(update_file) << "File " << main_file_id_ << " has changed local_ready_prefix_size from "
-                      << local_ready_prefix_size_ << " to " << new_local_ready_prefix_size;
-    local_ready_prefix_size_ = new_local_ready_prefix_size;
-    on_info_changed();
-  }
-}
-
-void FileNode::init_ready_size() {
-  if (local_.type() != LocalFileLocation::Type::Partial) {
-    return;
-  }
-  auto &partial = local_.partial();
-  auto bitmask = Bitmask(Bitmask::Decode{}, partial.ready_bitmask_);
-  local_ready_prefix_size_ = bitmask.get_ready_prefix_size(0, partial.part_size_, size_);
-  partial.ready_size_ = bitmask.get_total_size(partial.part_size_, size_);
-}
-
-void FileNode::set_download_offset(int64 download_offset) {
-  if (download_offset < 0 || download_offset > MAX_FILE_SIZE) {
-    return;
-  }
-  if (download_offset == download_offset_) {
-    return;
-  }
-
-  VLOG(update_file) << "File " << main_file_id_ << " has changed download_offset from " << download_offset_ << " to "
-                    << download_offset;
-  download_offset_ = download_offset;
-  is_download_offset_dirty_ = true;
-  recalc_ready_prefix_size(-1, -1);
-  on_info_changed();
-}
-
-int64 FileNode::get_download_limit() const {
-  if (ignore_download_limit_) {
-    return 0;
-  }
-  return private_download_limit_;
-}
-
-void FileNode::update_effective_download_limit(int64 old_download_limit) {
-  if (get_download_limit() == old_download_limit) {
-    return;
-  }
-
-  // There should be no false positives here
-  // And in case we turn off ignore_download_limit, set_download_limit will not change effective download limit
-  VLOG(update_file) << "File " << main_file_id_ << " has changed download_limit from " << old_download_limit << " to "
-                    << get_download_limit() << " (limit=" << private_download_limit_
-                    << ";ignore=" << ignore_download_limit_ << ")";
-  is_download_limit_dirty_ = true;
-}
-
-void FileNode::set_download_limit(int64 download_limit) {
-  if (download_limit < 0) {
-    return;
-  }
-  if (download_limit > MAX_FILE_SIZE) {
-    download_limit = MAX_FILE_SIZE;
-  }
-  auto old_download_limit = get_download_limit();
-  private_download_limit_ = download_limit;
-  update_effective_download_limit(old_download_limit);
-}
-
-void FileNode::set_ignore_download_limit(bool ignore_download_limit) {
-  auto old_download_limit = get_download_limit();
-  ignore_download_limit_ = ignore_download_limit;
-  update_effective_download_limit(old_download_limit);
-}
-
-void FileNode::drop_local_location() {
-  set_local_location(LocalFileLocation(), -1, -1);
-}
-
-void FileNode::set_local_location(const LocalFileLocation &local, int64 prefix_offset, int64 ready_prefix_size) {
-  if (local_ != local) {
-    VLOG(update_file) << "File " << main_file_id_ << " has changed local location";
-    local_ = local;
-
-    recalc_ready_prefix_size(prefix_offset, ready_prefix_size);
-
-    on_changed();
-  }
-}
-
-void FileNode::set_new_remote_location(NewRemoteFileLocation new_remote) {
-  if (new_remote.full) {
-    if (remote_.full && remote_.full.value() == new_remote.full.value()) {
-      if (remote_.full.value().get_access_hash() != new_remote.full.value().get_access_hash() ||
-          remote_.full.value().get_file_reference() != new_remote.full.value().get_file_reference() ||
-          remote_.full.value().get_source() != new_remote.full.value().get_source()) {
-        on_pmc_changed();
-      }
-    } else {
-      VLOG(update_file) << "File " << main_file_id_ << " has changed remote location";
-      on_changed();
-    }
-    remote_.full = new_remote.full;
-    remote_.full_source = new_remote.full_source;
-    remote_.is_full_alive = new_remote.is_full_alive;
-  } else {
-    if (remote_.full) {
-      VLOG(update_file) << "File " << main_file_id_ << " has lost remote location";
-      remote_.full = {};
-      remote_.is_full_alive = false;
-      remote_.full_source = FileLocationSource::None;
-      on_changed();
-    }
-  }
-
-  if (new_remote.partial) {
-    set_partial_remote_location(*new_remote.partial);
-  } else {
-    delete_partial_remote_location();
-  }
-}
-void FileNode::delete_partial_remote_location() {
-  if (remote_.partial) {
-    VLOG(update_file) << "File " << main_file_id_ << " has lost partial remote location";
-    remote_.partial.reset();
-    on_changed();
-  }
-}
-
-void FileNode::set_partial_remote_location(PartialRemoteFileLocation remote) {
-  if (remote_.is_full_alive) {
-    VLOG(update_file) << "File " << main_file_id_ << " remote is still alive, so there is NO reason to update partial";
-    return;
-  }
-  if (remote_.partial && *remote_.partial == remote) {
-    VLOG(update_file) << "Partial location of " << main_file_id_ << " is NOT changed";
-    return;
-  }
-  if (!remote_.partial && remote.ready_part_count_ == 0) {
-    // empty partial remote is equal to empty remote
-    VLOG(update_file) << "Partial location of " << main_file_id_
-                      << " is still empty, so there is NO reason to update it";
-    return;
-  }
-
-  VLOG(update_file) << "File " << main_file_id_ << " partial location has changed to " << remote;
-  remote_.partial = make_unique<PartialRemoteFileLocation>(std::move(remote));
-  on_changed();
-}
-
-bool FileNode::delete_file_reference(Slice file_reference) {
-  if (!remote_.full) {
-    VLOG(file_references) << "Can't delete file reference, because there is no remote location";
-    return false;
-  }
-
-  if (!remote_.full.value().delete_file_reference(file_reference)) {
-    VLOG(file_references) << "Can't delete unmatching file reference " << format::escaped(file_reference) << ", have "
-                          << format::escaped(remote_.full.value().get_file_reference());
-    return false;
-  }
-
-  VLOG(file_references) << "Do delete file reference of main file " << main_file_id_;
-  upload_was_update_file_reference_ = false;
-  download_was_update_file_reference_ = false;
-  on_pmc_changed();
-  return true;
-}
-
-void FileNode::set_generate_location(unique_ptr<FullGenerateFileLocation> &&generate) {
-  bool is_changed = generate_ == nullptr ? generate != nullptr : generate == nullptr || *generate_ != *generate;
-  if (is_changed) {
-    generate_ = std::move(generate);
-    on_pmc_changed();
-  }
-}
-
-void FileNode::set_size(int64 size) {
-  if (size_ != size) {
-    VLOG(update_file) << "File " << main_file_id_ << " has changed size to " << size;
-    size_ = size;
-    on_changed();
-  }
-}
-
-void FileNode::set_expected_size(int64 expected_size) {
-  if (expected_size_ != expected_size) {
-    VLOG(update_file) << "File " << main_file_id_ << " has changed expected size to " << expected_size;
-    expected_size_ = expected_size;
-    on_changed();
-  }
-}
-
-void FileNode::set_remote_name(string remote_name) {
-  if (remote_name_ != remote_name) {
-    remote_name_ = std::move(remote_name);
-    on_pmc_changed();
-  }
-}
-
-void FileNode::set_url(string url) {
-  if (url_ != url) {
-    VLOG(update_file) << "File " << main_file_id_ << " has changed URL to " << url;
-    url_ = std::move(url);
-    on_changed();
-  }
-}
-
-void FileNode::set_owner_dialog_id(DialogId owner_id) {
-  if (owner_dialog_id_ != owner_id) {
-    owner_dialog_id_ = owner_id;
-    on_pmc_changed();
-  }
-}
-
-void FileNode::set_encryption_key(FileEncryptionKey key) {
-  if (encryption_key_ != key) {
-    encryption_key_ = std::move(key);
-    on_pmc_changed();
-  }
-}
-
-void FileNode::set_upload_pause(FileUploadId upload_pause) {
-  if (upload_pause_ != upload_pause) {
-    LOG(INFO) << "Change file " << main_file_id_ << " upload_pause from " << upload_pause_ << " to " << upload_pause;
-    if (upload_pause_.is_valid() != upload_pause.is_valid()) {
-      on_info_changed();
-    }
-    upload_pause_ = upload_pause;
-  }
-}
-
-void FileNode::set_download_priority(int8 priority) {
-  if ((download_priority_ == 0) != (priority == 0)) {
-    VLOG(update_file) << "File " << main_file_id_ << " has changed download priority to " << priority;
-    on_info_changed();
-  }
-  download_priority_ = priority;
-}
-
-void FileNode::set_upload_priority(int8 priority) {
-  if (!remote_.is_full_alive && (upload_priority_ == 0) != (priority == 0)) {
-    VLOG(update_file) << "File " << main_file_id_ << " has changed upload priority to " << priority;
-    on_info_changed();
-  }
-  upload_priority_ = priority;
-}
-
-void FileNode::set_generate_priority(int8 download_priority, int8 upload_priority) {
-  if ((generate_download_priority_ == 0) != (download_priority == 0) ||
-      (generate_upload_priority_ == 0) != (upload_priority == 0)) {
-    VLOG(update_file) << "File " << main_file_id_ << " has changed generate priority to " << download_priority << "/"
-                      << upload_priority;
-    on_info_changed();
-  }
-  generate_priority_ = max(download_priority, upload_priority);
-  generate_download_priority_ = download_priority;
-  generate_upload_priority_ = upload_priority;
-}
-
-void FileNode::on_changed() {
-  on_pmc_changed();
-  on_info_changed();
-}
-
-void FileNode::on_info_changed() {
-  info_changed_flag_ = true;
-}
-
-void FileNode::on_pmc_changed() {
-  pmc_changed_flag_ = true;
-}
-
-bool FileNode::need_info_flush() const {
-  return info_changed_flag_;
-}
-
-bool FileNode::need_pmc_flush() const {
-  if (!pmc_changed_flag_) {
-    return false;
-  }
-
-  // already in pmc
-  if (pmc_id_.is_valid()) {
-    return true;
-  }
-
-  // We must save encryption key
-  if (!encryption_key_.empty()) {
-    // && remote_.type() != RemoteFileLocation::Type::Empty
-    return true;
-  }
-
-  bool has_generate_location = generate_ != nullptr;
-  // Do not save "#file_id#" conversion.
-  if (has_generate_location && begins_with(generate_->conversion_, "#file_id#")) {
-    has_generate_location = false;
-  }
-
-  if (remote_.full/* &&
-      (has_generate_location || local_.type() != LocalFileLocation::Type::Empty)*/) {
-    // we need to always save file sources
-    return true;
-  }
-  if (local_.type() == LocalFileLocation::Type::Full && (has_generate_location || remote_.full || remote_.partial)) {
-    return true;
-  }
-
-  // TODO: Generate location with constant conversion
-
-  return false;
-}
-
-void FileNode::on_pmc_flushed() {
-  pmc_changed_flag_ = false;
-}
-void FileNode::on_info_flushed() {
-  info_changed_flag_ = false;
-}
-
-string FileNode::suggested_path() const {
-  if (!remote_name_.empty()) {
-    return remote_name_;
-  }
-  if (!url_.empty()) {
-    auto file_name = get_url_file_name(url_);
-    if (!file_name.empty()) {
-      return file_name;
-    }
-  }
-  if (generate_ != nullptr) {
-    if (!generate_->original_path_.empty()) {
-      return generate_->original_path_;
-    }
-  }
-  return local_.file_name().str();
-}
-
-/*** FileView ***/
-bool FileView::has_full_local_location() const {
-  return node_->local_.type() == LocalFileLocation::Type::Full;
-}
-
-const FullLocalFileLocation *FileView::get_full_local_location() const {
-  if (!has_full_local_location()) {
-    return nullptr;
-  }
-  return &node_->local_.full();
-}
-
-bool FileView::has_full_remote_location() const {
-  return static_cast<bool>(node_->remote_.full);
-}
-
-bool FileView::has_alive_remote_location() const {
-  return node_->remote_.is_full_alive;
-}
-
-bool FileView::has_active_upload_remote_location() const {
-  const auto *main_remote_location = get_main_remote_location();
-  if (main_remote_location == nullptr) {
-    return false;
-  }
-  if (!has_alive_remote_location()) {
-    return false;
-  }
-  if (main_remote_location->is_encrypted_any()) {
-    return true;
-  }
-  return main_remote_location->has_file_reference();
-}
-
-bool FileView::has_active_download_remote_location() const {
-  const auto *full_remote_location = get_full_remote_location();
-  if (full_remote_location == nullptr) {
-    return false;
-  }
-  if (full_remote_location->is_encrypted_any()) {
-    return true;
-  }
-  return full_remote_location->has_file_reference();
-}
-
-const FullRemoteFileLocation *FileView::get_full_remote_location() const {
-  const auto *remote = node_.get_remote();
-  if (remote != nullptr) {
-    return remote;
-  }
-  if (!has_full_remote_location()) {
-    return nullptr;
-  }
-  return &node_->remote_.full.value();
-}
-
-const FullRemoteFileLocation *FileView::get_main_remote_location() const {
-  if (!has_full_remote_location()) {
-    return nullptr;
-  }
-  return &node_->remote_.full.value();
-}
-
-bool FileView::has_generate_location() const {
-  return node_->generate_ != nullptr;
-}
-
-const FullGenerateFileLocation *FileView::get_generate_location() const {
-  return node_->generate_.get();
-}
-
-int64 FileView::size() const {
-  return node_->size_;
-}
-
-int64 FileView::get_allocated_local_size() const {
-  auto file_path = path();
-  if (file_path.empty()) {
-    return 0;
-  }
-  auto r_stat = stat(file_path);
-  if (r_stat.is_error()) {
-    return 0;
-  }
-  return r_stat.ok().real_size_;
-}
-
-int64 FileNode::expected_size(bool may_guess) const {
-  if (size_ != 0) {
-    return size_;
-  }
-  int64 current_size = local_total_size();  // TODO: this is not the best approximation
-  if (expected_size_ != 0) {
-    return max(current_size, expected_size_);
-  }
-  if (may_guess && local_.type() == LocalFileLocation::Type::Partial) {
-    current_size *= 3;
-  }
-  return current_size;
-}
-
-int64 FileView::expected_size(bool may_guess) const {
-  return node_->expected_size(may_guess);
-}
-
-bool FileNode::is_downloading() const {
-  return download_priority_ != 0 || generate_download_priority_ != 0;
-}
-
-bool FileView::is_downloading() const {
-  return node_->is_downloading();
-}
-
-int64 FileView::download_offset() const {
-  return node_->download_offset_;
-}
-
-int64 FileNode::downloaded_prefix(int64 offset) const {
-  switch (local_.type()) {
-    case LocalFileLocation::Type::Empty:
-      return 0;
-    case LocalFileLocation::Type::Full:
-      if (offset < size_) {
-        return size_ - offset;
-      }
-      return 0;
-    case LocalFileLocation::Type::Partial:
-      if (get_type() == FileType::SecureEncrypted) {
-        // File is not decrypted and verified yet
-        return 0;
-      }
-      return Bitmask(Bitmask::Decode{}, local_.partial().ready_bitmask_)
-          .get_ready_prefix_size(offset, local_.partial().part_size_, size_);
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-int64 FileView::downloaded_prefix(int64 offset) const {
-  return node_->downloaded_prefix(offset);
-}
-
-int64 FileNode::local_prefix_size() const {
-  switch (local_.type()) {
-    case LocalFileLocation::Type::Full:
-      return download_offset_ <= size_ ? size_ - download_offset_ : 0;
-    case LocalFileLocation::Type::Partial: {
-      if (get_type() == FileType::SecureEncrypted) {
-        // File is not decrypted and verified yet
-        return 0;
-      }
-      return local_ready_prefix_size_;
-    }
-    default:
-      return 0;
-  }
-}
-
-int64 FileView::local_prefix_size() const {
-  return node_->local_prefix_size();
-}
-
-int64 FileNode::local_total_size() const {
-  switch (local_.type()) {
-    case LocalFileLocation::Type::Empty:
-      return 0;
-    case LocalFileLocation::Type::Full:
-      return size_;
-    case LocalFileLocation::Type::Partial:
-      return local_.partial().ready_size_;
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-int64 FileView::local_total_size() const {
-  return node_->local_total_size();
-}
-
-bool FileNode::is_uploading() const {
-  return upload_priority_ != 0 || generate_upload_priority_ != 0 || upload_pause_.is_valid();
-}
-
-bool FileView::is_uploading() const {
-  return node_->is_uploading();
-}
-
-int64 FileNode::remote_size() const {
-  if (remote_.is_full_alive) {
-    return size_;
-  }
-  if (remote_.partial) {
-    return remote_.partial->ready_size_;
-  }
-  return 0;
-}
-
-int64 FileView::remote_size() const {
-  return node_->remote_size();
-}
-
-string FileNode::path() const {
-  switch (local_.type()) {
-    case LocalFileLocation::Type::Full:
-      return local_.full().path_;
-    case LocalFileLocation::Type::Partial:
-      return local_.partial().path_;
-    default:
-      return string();
-  }
-}
-
-string FileView::path() const {
-  return node_->path();
-}
-
-bool FileView::has_url() const {
-  return get_url() != nullptr;
-}
-
-const string *FileView::get_url() const {
-  if (node_->url_.empty()) {
-    return nullptr;
-  }
-  return &node_->url_;
-}
-
-string FileView::remote_name() const {
-  return node_->remote_name_;
-}
-
-string FileView::suggested_path() const {
-  return node_->suggested_path();
-}
-
-DialogId FileView::owner_dialog_id() const {
-  return node_->owner_dialog_id_;
-}
-
-bool FileView::get_by_hash() const {
-  return node_->get_by_hash_;
-}
-
-FileView::FileView(ConstFileNodePtr node) : node_(node) {
-}
-
-bool FileView::empty() const {
-  return !node_;
-}
-
-bool FileView::can_download_from_server() const {
-  const auto *full_remote_location = get_full_remote_location();
-  if (full_remote_location == nullptr) {
-    return false;
-  }
-  if (full_remote_location->file_type_ == FileType::Encrypted && encryption_key().empty()) {
-    return false;
-  }
-  if (full_remote_location->is_web()) {
-    return true;
-  }
-  if (full_remote_location->get_dc_id().is_empty()) {
-    return false;
-  }
-  if (!full_remote_location->is_encrypted_any() && !full_remote_location->has_file_reference() &&
-      ((node_->download_id_ == 0 && node_->download_was_update_file_reference_) || !node_->remote_.is_full_alive)) {
-    return false;
-  }
-  return true;
-}
-
-bool FileView::can_generate() const {
-  return has_generate_location();
-}
-
-bool FileNode::can_delete() const {
-  if (local_.type() == LocalFileLocation::Type::Full) {
-    return begins_with(local_.full().path_, get_files_dir(get_type()));
-  }
-  return local_.type() == LocalFileLocation::Type::Partial;
-}
-
-bool FileView::can_delete() const {
-  return node_->can_delete();
-}
-
-string FileNode::get_unique_id(const FullGenerateFileLocation &location) {
-  return base64url_encode(zero_encode('\xff' + serialize(location)));
-}
-
-string FileNode::get_unique_id(const FullRemoteFileLocation &location) {
-  return base64url_encode(zero_encode(serialize(location.as_unique())));
-}
-
-string FileNode::get_persistent_id(const FullGenerateFileLocation &location) {
-  auto binary = serialize(location);
-
-  binary = zero_encode(binary);
-  binary.push_back(PERSISTENT_ID_VERSION_GENERATED);
-  return base64url_encode(binary);
-}
-
-string FileNode::get_persistent_id(const FullRemoteFileLocation &location) {
-  auto binary = serialize(location);
-
-  binary = zero_encode(binary);
-  binary.push_back(static_cast<char>(narrow_cast<uint8>(Version::Next) - 1));
-  binary.push_back(PERSISTENT_ID_VERSION);
-  return base64url_encode(binary);
-}
-
-string FileNode::get_persistent_file_id() const {
-  if (remote_.is_full_alive) {
-    return get_persistent_id(remote_.full.value());
-  } else if (!url_.empty()) {
-    return url_;
-  } else if (generate_ != nullptr && FileManager::is_remotely_generated_file(generate_->conversion_)) {
-    return get_persistent_id(*generate_);
-  }
-  return string();
-}
-
-string FileNode::get_unique_file_id() const {
-  if (remote_.is_full_alive) {
-    if (!remote_.full.value().is_web()) {
-      return get_unique_id(remote_.full.value());
-    }
-  } else if (generate_ != nullptr && FileManager::is_remotely_generated_file(generate_->conversion_)) {
-    return get_unique_id(*generate_);
-  }
-  return string();
-}
-
-/*** FileManager ***/
-static int merge_choose_remote_location(const FullRemoteFileLocation &x, FileLocationSource x_source,
-                                        const FullRemoteFileLocation &y, FileLocationSource y_source);
-
-namespace {
-void prepare_path_for_pmc(FileType file_type, string &path) {
-  path = PathView::relative(path, get_files_base_dir(file_type)).str();
-}
-}  // namespace
-
-class FileManager::UserDownloadFileCallback final : public FileManager::DownloadCallback {
-  FileManager *file_manager_;
-
- public:
-  explicit UserDownloadFileCallback(FileManager *file_manager) : file_manager_(file_manager) {
-  }
-
-  void on_download_ok(FileId file_id) final {
-    file_manager_->on_user_file_download_finished(file_id);
-  }
-
-  void on_download_error(FileId file_id, Status error) final {
-    file_manager_->on_user_file_download_finished(file_id);
-  }
-};
-
-class FileManager::PreliminaryUploadFileCallback final : public UploadCallback {
- public:
-  void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-    // cancel file upload of the file to allow next upload with the same file to succeed
-    send_closure(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-  }
-
-  void on_upload_encrypted_ok(FileUploadId file_upload_id,
-                              telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file) final {
-    // cancel file upload of the file to allow next upload with the same file to succeed
-    send_closure(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-  }
-
-  void on_upload_secure_ok(FileUploadId file_upload_id,
-                           telegram_api::object_ptr<telegram_api::InputSecureFile> input_file) final {
-    // cancel file upload of the file to allow next upload with the same file to succeed
-    send_closure(G()->file_manager(), &FileManager::cancel_upload, file_upload_id);
-  }
-
-  void on_upload_error(FileUploadId file_upload_id, Status error) final {
-  }
-};
-
-FileManager::FileManager(unique_ptr<Context> context)
-    : user_download_file_callback_(std::make_shared<UserDownloadFileCallback>(this)), context_(std::move(context)) {
-  if (G()->use_file_database()) {
-    file_db_ = G()->td_db()->get_file_db_shared();
-  }
-
-  parent_ = context_->create_reference();
-  next_file_id();
-  next_file_node_id();
-
-  G()->td_db()->with_db_path([bad_paths = &bad_paths_](CSlice path) { bad_paths->insert(path.str()); });
-}
-
-void FileManager::init_actor() {
-  file_download_manager_ = create_actor_on_scheduler<FileDownloadManager>(
-      "FileDownloadManager", G()->get_slow_net_scheduler_id(), make_unique<FileDownloadManagerCallback>(actor_id(this)),
-      context_->create_reference());
-  file_load_manager_ = create_actor_on_scheduler<FileLoadManager>("FileLoadManager", G()->get_slow_net_scheduler_id());
-  file_upload_manager_ = create_actor_on_scheduler<FileUploadManager>(
-      "FileUploadManager", G()->get_slow_net_scheduler_id(), make_unique<FileUploadManagerCallback>(actor_id(this)),
-      context_->create_reference());
-  file_generate_manager_ = create_actor_on_scheduler<FileGenerateManager>(
-      "FileGenerateManager", G()->get_slow_net_scheduler_id(), context_->create_reference());
-}
-
-FileManager::~FileManager() {
-  Scheduler::instance()->destroy_on_scheduler(
-      G()->get_gc_scheduler_id(), remote_location_info_, file_hash_to_file_id_, remote_location_to_file_id_,
-      local_location_to_file_id_, generate_location_to_file_id_, file_id_info_, empty_file_ids_, file_nodes_);
-}
-
-string FileManager::fix_file_extension(Slice file_name, Slice file_type, Slice file_extension) {
-  return PSTRING() << (file_name.empty() ? file_type : file_name) << '.' << file_extension;
-}
-
-string FileManager::get_file_name(FileType file_type, Slice path) {
-  PathView path_view(path);
-  auto file_name = path_view.file_name();
-  auto extension = path_view.extension();
-  switch (file_type) {
-    case FileType::Thumbnail:
-      if (extension != "jpg" && extension != "jpeg" && extension != "webp") {
-        return fix_file_extension(file_name, "thumbnail", "jpg");
-      }
-      break;
-    case FileType::ProfilePhoto:
-    case FileType::Photo:
-    case FileType::PhotoStory:
-    case FileType::SelfDestructingPhoto:
-      if (extension != "jpg" && extension != "jpeg" && extension != "gif" && extension != "png" && extension != "tif" &&
-          extension != "bmp") {
-        return fix_file_extension(file_name, "photo", "jpg");
-      }
-      break;
-    case FileType::VoiceNote:
-    case FileType::SelfDestructingVoiceNote:
-      if (extension != "ogg" && extension != "oga" && extension != "mp3" && extension != "mpeg3" &&
-          extension != "m4a" && extension != "opus") {
-        return fix_file_extension(file_name, "voice", "oga");
-      }
-      break;
-    case FileType::Video:
-    case FileType::VideoNote:
-    case FileType::SelfDestructingVideo:
-    case FileType::SelfDestructingVideoNote:
-      if (extension != "mov" && extension != "3gp" && extension != "mpeg4" && extension != "mp4" &&
-          extension != "mkv") {
-        return fix_file_extension(file_name, "video", "mp4");
-      }
-      break;
-    case FileType::VideoStory:
-      if (extension != "mp4") {
-        return fix_file_extension(file_name, "video", "mp4");
-      }
-      break;
-    case FileType::Audio:
-      if (extension != "ogg" && extension != "oga" && extension != "mp3" && extension != "mpeg3" &&
-          extension != "m4a") {
-        return fix_file_extension(file_name, "audio", "mp3");
-      }
-      break;
-    case FileType::Wallpaper:
-    case FileType::Background:
-      if (extension != "jpg" && extension != "jpeg" && extension != "png") {
-        return fix_file_extension(file_name, "wallpaper", "jpg");
-      }
-      break;
-    case FileType::Sticker:
-      if (extension != "webp" && extension != "tgs" && extension != "webm") {
-        return fix_file_extension(file_name, "sticker", "webp");
-      }
-      break;
-    case FileType::Ringtone:
-      if (extension != "ogg" && extension != "oga" && extension != "mp3" && extension != "mpeg3") {
-        return fix_file_extension(file_name, "notification_sound", "mp3");
-      }
-      break;
-    case FileType::Document:
-    case FileType::DocumentAsFile:
-    case FileType::Animation:
-    case FileType::Encrypted:
-    case FileType::Temp:
-    case FileType::EncryptedThumbnail:
-    case FileType::SecureEncrypted:
-    case FileType::SecureDecrypted:
-    case FileType::CallLog:
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return file_name.str();
-}
-
-Status FileManager::check_priority(int32 priority) {
-  if (1 <= priority && priority <= 32) {
-    return Status::OK();
-  }
-  return Status::Error(400, "Priority must be between 1 and 32");
-}
-
-bool FileManager::is_remotely_generated_file(Slice conversion) {
-  return begins_with(conversion, "#map#") || begins_with(conversion, "#audio_t#");
-}
-
-vector<int> FileManager::get_missing_file_parts(const Status &error) {
-  vector<int> result;
-  auto error_message = error.message();
-  if (begins_with(error_message, "FILE_PART_") && ends_with(error_message, "_MISSING")) {
-    auto r_file_part = to_integer_safe<int>(error_message.substr(10, error_message.size() - 18));
-    if (r_file_part.is_error() || r_file_part.ok() < 0) {
-      LOG(ERROR) << "Receive error " << error;
-    } else {
-      result.push_back(r_file_part.ok());
-    }
-  } else if (error_message == "FILE_PART_INVALID" || error_message == "FILE_PART_LENGTH_INVALID") {
-    result.push_back(0);
-  }
-  return result;
-}
-
-void FileManager::check_local_location(FileId file_id, bool skip_file_size_checks) {
-  auto node = get_sync_file_node(file_id);
-  if (node) {
-    check_local_location(node, skip_file_size_checks).ignore();
-  }
-}
-
-void FileManager::check_local_location_async(FileId file_id, bool skip_file_size_checks) {
-  auto node = get_sync_file_node(file_id);
-  if (node) {
-    check_local_location_async(node, skip_file_size_checks, Promise<Unit>());
-  }
-}
-
-Status FileManager::check_local_location(FileNodePtr node, bool skip_file_size_checks) {
-  Status status;
-  if (node->local_.type() == LocalFileLocation::Type::Full) {
-    auto r_info = check_full_local_location({node->local_.full(), node->size_}, skip_file_size_checks);
-    if (r_info.is_error()) {
-      status = r_info.move_as_error();
-    } else if (bad_paths_.count(r_info.ok().location_.path_) != 0) {
-      status = Status::Error(400, "Sending of internal database files is forbidden");
-    } else if (r_info.ok().location_ != node->local_.full() || r_info.ok().size_ != node->size_) {
-      LOG(ERROR) << "Local location changed from " << node->local_.full() << " with size " << node->size_ << " to "
-                 << r_info.ok().location_ << " with size " << r_info.ok().size_;
-    }
-  } else if (node->local_.type() == LocalFileLocation::Type::Partial) {
-    status = check_partial_local_location(node->local_.partial());
-  }
-  if (status.is_error()) {
-    on_failed_check_local_location(node);
-  }
-  return status;
-}
-
-void FileManager::on_failed_check_local_location(FileNodePtr node) {
-  send_closure(G()->download_manager(), &DownloadManager::remove_file_if_finished, node->main_file_id_);
-  node->drop_local_location();
-  try_flush_node(node, "on_failed_check_local_location");
-}
-
-void FileManager::check_local_location_async(FileNodePtr node, bool skip_file_size_checks, Promise<Unit> promise) {
-  if (node->local_.type() == LocalFileLocation::Type::Empty) {
-    return promise.set_value(Unit());
-  }
-
-  if (node->local_.type() == LocalFileLocation::Type::Full) {
-    send_closure(file_load_manager_, &FileLoadManager::check_full_local_location,
-                 FullLocalLocationInfo{node->local_.full(), node->size_}, skip_file_size_checks,
-                 PromiseCreator::lambda([actor_id = actor_id(this), file_id = node->main_file_id_,
-                                         checked_location = node->local_,
-                                         promise = std::move(promise)](Result<FullLocalLocationInfo> result) mutable {
-                   send_closure(actor_id, &FileManager::on_check_full_local_location, file_id,
-                                std::move(checked_location), std::move(result), std::move(promise));
-                 }));
-  } else {
-    CHECK(node->local_.type() == LocalFileLocation::Type::Partial);
-    send_closure(file_load_manager_, &FileLoadManager::check_partial_local_location, node->local_.partial(),
-                 PromiseCreator::lambda([actor_id = actor_id(this), file_id = node->main_file_id_,
-                                         checked_location = node->local_,
-                                         promise = std::move(promise)](Result<Unit> result) mutable {
-                   send_closure(actor_id, &FileManager::on_check_partial_local_location, file_id,
-                                std::move(checked_location), std::move(result), std::move(promise));
-                 }));
-  }
-}
-
-void FileManager::on_check_full_local_location(FileId file_id, LocalFileLocation checked_location,
-                                               Result<FullLocalLocationInfo> r_info, Promise<Unit> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto node = get_file_node(file_id);
-  if (!node) {
-    return;
-  }
-  if (node->local_ != checked_location) {
-    LOG(INFO) << "Full location changed while being checked; ignore check result";
-    return promise.set_value(Unit());
-  }
-  Status status;
-  if (r_info.is_error()) {
-    status = r_info.move_as_error();
-  } else if (bad_paths_.count(r_info.ok().location_.path_) != 0) {
-    status = Status::Error(400, "Sending of internal database files is forbidden");
-  } else if (r_info.ok().location_ != node->local_.full() || r_info.ok().size_ != node->size_) {
-    LOG(ERROR) << "Local location changed from " << node->local_.full() << " with size " << node->size_ << " to "
-               << r_info.ok().location_ << " with size " << r_info.ok().size_;
-  }
-  if (status.is_error()) {
-    on_failed_check_local_location(node);
-    promise.set_error(std::move(status));
-  } else {
-    promise.set_value(Unit());
-  }
-}
-
-void FileManager::on_check_partial_local_location(FileId file_id, LocalFileLocation checked_location,
-                                                  Result<Unit> result, Promise<Unit> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto node = get_file_node(file_id);
-  CHECK(node);
-  if (node->local_ != checked_location) {
-    LOG(INFO) << "Partial location changed while being checked; ignore check result";
-    return promise.set_value(Unit());
-  }
-  if (result.is_error()) {
-    on_failed_check_local_location(node);
-    promise.set_error(result.move_as_error());
-  } else {
-    promise.set_value(Unit());
-  }
-}
-
-void FileManager::recheck_full_local_location(FullLocalLocationInfo location_info, bool skip_file_size_checks) {
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), checked_location = location_info.location_](
-                                            Result<FullLocalLocationInfo> result) mutable {
-    send_closure(actor_id, &FileManager::on_recheck_full_local_location, std::move(checked_location),
-                 std::move(result));
-  });
-  send_closure(file_load_manager_, &FileLoadManager::check_full_local_location, std::move(location_info),
-               skip_file_size_checks, std::move(promise));
-}
-
-void FileManager::on_recheck_full_local_location(FullLocalFileLocation checked_location,
-                                                 Result<FullLocalLocationInfo> r_info) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto file_id_it = local_location_to_file_id_.find(checked_location);
-  if (file_id_it == local_location_to_file_id_.end()) {
-    return;
-  }
-  auto file_id = file_id_it->second;
-
-  on_check_full_local_location(file_id, LocalFileLocation(checked_location), std::move(r_info), Promise<Unit>());
-}
-
-bool FileManager::try_fix_partial_local_location(FileNodePtr node) {
-  LOG(INFO) << "Trying to fix partial local location";
-  if (node->local_.type() != LocalFileLocation::Type::Partial) {
-    LOG(INFO) << "   failed - not a partial location";
-    return false;
-  }
-  auto partial = node->local_.partial();
-  if (!partial.iv_.empty()) {
-    // can't recalc iv_
-    LOG(INFO) << "   failed - partial location has nonempty iv";
-    return false;
-  }
-  if (partial.part_size_ >= 512 * (1 << 10) || (partial.part_size_ & (partial.part_size_ - 1)) != 0) {
-    LOG(INFO) << "   failed - too big part_size already: " << partial.part_size_;
-    return false;
-  }
-  auto old_part_size = narrow_cast<int32>(partial.part_size_);
-  int new_part_size = 512 * (1 << 10);
-  auto k = new_part_size / old_part_size;
-  Bitmask mask(Bitmask::Decode(), partial.ready_bitmask_);
-  auto new_mask = mask.compress(k);
-
-  partial.part_size_ = new_part_size;
-  partial.ready_bitmask_ = new_mask.encode();
-  partial.ready_size_ = new_mask.get_total_size(partial.part_size_, node->size_);
-  node->set_local_location(LocalFileLocation(std::move(partial)), -1, -1);
-  LOG(INFO) << "   ok: increase part_size " << old_part_size << "->" << new_part_size;
-  return true;
-}
-
-FileManager::FileIdInfo *FileManager::get_file_id_info(FileId file_id) {
-  CHECK(static_cast<size_t>(file_id.get()) < file_id_info_.size());
-  return file_id_info_[file_id.get()].get();
-}
-
-FileId FileManager::copy_file_id(FileId file_id, FileType file_type, DialogId owner_dialog_id, const char *source) {
-  auto file_view = get_file_view(file_id);
-  auto result_file_id = register_generate(file_type, file_view.suggested_path(),
-                                          PSTRING() << "#file_id#" << file_id.get(), owner_dialog_id, file_view.size());
-  LOG(INFO) << "Copy file " << file_id << " to " << result_file_id << " from " << source;
-  return result_file_id;
-}
-
-bool FileManager::try_forget_file_id(FileId file_id) {
-  auto *info = get_file_id_info(file_id);
-  if (info->pin_flag_) {
-    LOG(DEBUG) << "Can't forget file " << file_id << ", because it is pinned";
-    return false;
-  }
-  auto file_node = get_file_node(file_id);
-  if (file_node->main_file_id_ == file_id) {
-    LOG(DEBUG) << "Can't forget main file " << file_id;
-    return false;
-  }
-
-  LOG(DEBUG) << "Forget file " << file_id;
-  bool is_removed = td::remove(file_node->file_ids_, file_id);
-  CHECK(is_removed);
-  *info = FileIdInfo();
-  empty_file_ids_.push_back(file_id.get());
-  return true;
-}
-
-FileId FileManager::register_empty(FileType type) {
-  auto location = FullLocalFileLocation(type, "", 0);
-  auto &file_id = local_location_to_file_id_[location];
-  if (file_id.is_valid()) {
-    return file_id;
-  }
-  file_id = next_file_id();
-
-  LOG(INFO) << "Register empty file as " << file_id;
-  auto file_info = STORE_FILE_INFO ? td::make_unique<FileInfoLocal>(location, 0) : nullptr;
-  auto file_node_id = next_file_node_id();
-  file_nodes_[file_node_id] =
-      td::make_unique<FileNode>(LocalFileLocation(std::move(location)), NewRemoteFileLocation(), nullptr, 0, 0,
-                                string(), string(), DialogId(), FileEncryptionKey(), file_id, static_cast<int8>(0));
-
-  auto file_id_info = get_file_id_info(file_id);
-  file_id_info->node_id_ = file_node_id;
-  file_id_info->file_info_ = std::move(file_info);
-  file_id_info->pin_flag_ = true;
-
-  return file_id;
-}
-
-void FileManager::on_file_unlink(const FullLocalFileLocation &location) {
-  auto it = local_location_to_file_id_.find(location);
-  if (it == local_location_to_file_id_.end()) {
-    return;
-  }
-  auto file_id = it->second;
-  auto file_node = get_sync_file_node(file_id);
-  CHECK(file_node);
-  clear_from_pmc(file_node);
-  send_closure(G()->download_manager(), &DownloadManager::remove_file_if_finished, file_node->main_file_id_);
-  file_node->drop_local_location();
-  try_flush_node(file_node, "on_file_unlink");
-}
-
-Result<FileId> FileManager::register_local(FullLocalFileLocation location, DialogId owner_dialog_id, int64 size,
-                                           bool get_by_hash, bool skip_file_size_checks, FileId merge_file_id) {
-  TRY_RESULT(info, check_full_local_location({std::move(location), size}, skip_file_size_checks));
-  location = std::move(info.location_);
-  size = info.size_;
-
-  if (bad_paths_.count(location.path_) != 0) {
-    return Status::Error(400, "Sending of internal database files is forbidden");
-  }
-
-  auto &file_id = local_location_to_file_id_[location];
-  bool is_new = false;
-  if (!file_id.is_valid()) {
-    file_id = next_file_id();
-    LOG(INFO) << "Register " << location << " as " << file_id;
-
-    auto file_info = STORE_FILE_INFO ? td::make_unique<FileInfoLocal>(location, size) : nullptr;
-    auto file_node_id = next_file_node_id();
-    auto &node = file_nodes_[file_node_id];
-    node = td::make_unique<FileNode>(LocalFileLocation(std::move(location)), NewRemoteFileLocation(), nullptr, size, 0,
-                                     string(), string(), owner_dialog_id, FileEncryptionKey(), file_id,
-                                     static_cast<int8>(0));
-    node->need_load_from_pmc_ = true;
-    auto file_id_info = get_file_id_info(file_id);
-    file_id_info->node_id_ = file_node_id;
-    file_id_info->file_info_ = std::move(file_info);
-    is_new = true;
-  }
-
-  if (merge_file_id.is_valid()) {
-    auto status = merge(file_id, merge_file_id);
-    if (status.is_ok()) {
-      auto node = get_file_node(file_id);
-      auto main_file_id = node->main_file_id_;
-      if (main_file_id != file_id) {
-        auto *file_info = get_file_id_info(file_id);
-        if (is_new && !file_info->pin_flag_) {
-          bool is_removed = try_forget_file_id(file_id);
-          CHECK(is_removed);
-          node = get_file_node(main_file_id);
-        }
-        file_id = main_file_id;
-      }
-      try_flush_node(node, "register_local");
-    }
-    if (is_new) {
-      get_file_id_info(file_id)->pin_flag_ = true;
-    }
-    if (status.is_error()) {
-      return std::move(status);
-    }
-  } else if (is_new) {
-    get_file_id_info(file_id)->pin_flag_ = true;
-  }
-  return file_id;
-}
-
-FileId FileManager::register_remote(FullRemoteFileLocation location, FileLocationSource file_location_source,
-                                    DialogId owner_dialog_id, int64 size, int64 expected_size, string remote_name) {
-  if (size < 0) {
-    LOG(ERROR) << "Receive file " << location << " of size " << size;
-    size = 0;
-  }
-  if (expected_size < 0) {
-    LOG(ERROR) << "Receive file " << location << " of expected size " << expected_size;
-    expected_size = 0;
-  }
-  auto url = location.get_url();
-
-  FileId file_id;
-  FileId merge_file_id;
-  int32 remote_key = 0;
-  if (context_->keep_exact_remote_location()) {
-    file_id = next_file_id();
-    RemoteInfo info{location, file_location_source, file_id};
-    remote_key = remote_location_info_.add(info);
-    auto &stored_info = remote_location_info_.get(remote_key);
-    if (stored_info.file_id_ != file_id) {
-      merge_file_id = stored_info.file_id_;
-      if (merge_choose_remote_location(location, file_location_source, stored_info.remote_,
-                                       stored_info.file_location_source_) == 0) {
-        stored_info.remote_ = location;
-        stored_info.file_location_source_ = file_location_source;
-      }
-    }
-  } else {
-    auto &other_id = remote_location_to_file_id_[location];
-    if (other_id.is_valid() && get_file_node(other_id)->remote_.full_source == FileLocationSource::FromServer) {
-      // if the file has already been received from the server, then we don't need merge or create new file
-      // skip merging of dc_id, file_reference, and access_hash
-      return other_id;
-    }
-
-    file_id = next_file_id();
-    if (other_id.empty()) {
-      other_id = file_id;
-    } else {
-      merge_file_id = other_id;
-    }
-  }
-
-  LOG(INFO) << "Register " << location << " as " << file_id;
-  auto file_info =
-      STORE_FILE_INFO ? td::make_unique<FileInfoRemote>(location, size, expected_size, remote_name, url) : nullptr;
-  auto file_node_id = next_file_node_id();
-  auto &node = file_nodes_[file_node_id];
-  node = td::make_unique<FileNode>(LocalFileLocation(),
-                                   NewRemoteFileLocation(RemoteFileLocation(std::move(location)), file_location_source),
-                                   nullptr, size, expected_size, std::move(remote_name), std::move(url),
-                                   owner_dialog_id, FileEncryptionKey(), file_id, static_cast<int8>(1));
-  auto file_id_info = get_file_id_info(file_id);
-  file_id_info->node_id_ = file_node_id;
-  file_id_info->file_info_ = std::move(file_info);
-
-  auto main_file_id = file_id;
-  if (!merge_file_id.is_valid()) {
-    node->need_load_from_pmc_ = true;
-    get_file_id_info(main_file_id)->pin_flag_ = true;
-  } else {
-    // may invalidate node
-    merge(file_id, merge_file_id, true).ignore();
-    try_flush_node(get_file_node(file_id), "register_remote");
-
-    main_file_id = get_file_node(file_id)->main_file_id_;
-    if (main_file_id != file_id) {
-      try_forget_file_id(file_id);
-    }
-  }
-  return FileId(main_file_id.get(), remote_key);
-}
-
-FileId FileManager::register_url(string url, FileType file_type, DialogId owner_dialog_id) {
-  return do_register_generate(td::make_unique<FullGenerateFileLocation>(file_type, url, "#url#"), owner_dialog_id, 0,
-                              url);
-}
-
-FileId FileManager::register_generate(FileType file_type, string original_path, string conversion,
-                                      DialogId owner_dialog_id, int64 expected_size) {
-  // add #mtime# into conversion
-  if (!original_path.empty() && conversion[0] != '#' && PathView(original_path).is_absolute()) {
-    auto file_paths = log_interface->get_file_paths();
-    if (!td::contains(file_paths, original_path)) {
-      auto r_stat = stat(original_path);
-      uint64 mtime = r_stat.is_ok() ? r_stat.ok().mtime_nsec_ : 0;
-      conversion = PSTRING() << "#mtime#" << lpad0(to_string(mtime), 20) << '#' << conversion;
-    }
-  }
-  return do_register_generate(
-      td::make_unique<FullGenerateFileLocation>(file_type, std::move(original_path), std::move(conversion)),
-      owner_dialog_id, max(expected_size, static_cast<int64>(0)), string());
-}
-
-FileId FileManager::do_register_generate(unique_ptr<FullGenerateFileLocation> generate, DialogId owner_dialog_id,
-                                         int64 expected_size, string url) {
-  auto &file_id = generate_location_to_file_id_[*generate];
-  if (!file_id.is_valid()) {
-    file_id = next_file_id();
-    LOG(INFO) << "Register " << *generate << " as " << file_id;
-
-    auto file_node_id = next_file_node_id();
-    auto &node = file_nodes_[file_node_id];
-    auto file_info = STORE_FILE_INFO ? td::make_unique<FileInfoGenerate>(*generate, expected_size, url) : nullptr;
-    node = td::make_unique<FileNode>(LocalFileLocation(), NewRemoteFileLocation(), std::move(generate), 0,
-                                     expected_size, string(), std::move(url), owner_dialog_id, FileEncryptionKey(),
-                                     file_id, static_cast<int8>(0));
-    node->need_load_from_pmc_ = true;
-
-    auto file_id_info = get_file_id_info(file_id);
-    file_id_info->node_id_ = file_node_id;
-    file_id_info->file_info_ = std::move(file_info);
-    file_id_info->pin_flag_ = true;
-  }
-  return file_id;
-}
-
-Result<FileId> FileManager::register_file(FileData &&data, FileLocationSource file_location_source,
-                                          const char *source) {
-  bool has_remote = data.remote_.type() == RemoteFileLocation::Type::Full;
-  bool has_generate = data.generate_ != nullptr;
-  if (data.local_.type() == LocalFileLocation::Type::Full) {
-    bool is_from_database = file_location_source == FileLocationSource::FromBinlog ||
-                            file_location_source == FileLocationSource::FromDatabase;
-    if (is_from_database) {
-      PathView path_view(data.local_.full().path_);
-      if (path_view.is_relative()) {
-        data.local_.full().path_ = PSTRING()
-                                   << get_files_base_dir(data.local_.full().file_type_) << data.local_.full().path_;
-      }
-    }
-
-    if (file_location_source != FileLocationSource::FromDatabase) {
-      Status status;
-      auto r_info = check_full_local_location({data.local_.full(), data.size_}, false);
-      if (r_info.is_error()) {
-        status = r_info.move_as_error();
-      } else if (bad_paths_.count(r_info.ok().location_.path_) != 0) {
-        status = Status::Error(400, "Sending of internal database files is forbidden");
-      }
-      if (status.is_error()) {
-        LOG(INFO) << "Invalid " << data.local_.full() << ": " << status << " from " << source;
-        data.local_ = LocalFileLocation();
-        if (data.remote_.type() == RemoteFileLocation::Type::Partial) {
-          data.remote_ = {};
-        }
-
-        if (!has_remote && !has_generate) {
-          return std::move(status);
-        }
-      } else {
-        data.local_ = LocalFileLocation(std::move(r_info.ok().location_));
-        data.size_ = r_info.ok().size_;
-      }
-    } else {
-      // the location has been checked previously, but recheck it just in case
-      recheck_full_local_location({data.local_.full(), data.size_}, false);
-    }
-  }
-  bool has_local = data.local_.type() == LocalFileLocation::Type::Full;
-  bool has_location = has_local || has_remote || has_generate;
-  if (!has_location) {
-    return Status::Error(400, "No location");
-  }
-
-  if (data.size_ < 0) {
-    LOG(ERROR) << "Receive file of size " << data.size_ << " from " << source;
-    data.size_ = 0;
-  }
-  if (data.expected_size_ < 0) {
-    LOG(ERROR) << "Receive file of expected size " << data.expected_size_ << " from " << source;
-    data.expected_size_ = 0;
-  }
-
-  if (data.remote_.type() == RemoteFileLocation::Type::Partial) {
-    auto &partial = data.remote_.partial();
-    auto part_size = static_cast<int64>(partial.part_size_);
-    auto ready_part_count = partial.ready_part_count_;
-    auto remote_ready_size = partial.ready_size_;
-    partial.ready_size_ = max(part_size * ready_part_count, remote_ready_size);
-    if (data.size_ != 0 && data.size_ < partial.ready_size_) {
-      partial.ready_size_ = data.size_;
-    }
-  }
-
-  FileId file_id = next_file_id();
-
-  LOG(INFO) << "Register file data " << data << " as " << file_id << " from " << source;
-  // create FileNode
-  auto file_node_id = next_file_node_id();
-  auto &node = file_nodes_[file_node_id];
-  node = td::make_unique<FileNode>(std::move(data.local_), NewRemoteFileLocation(data.remote_, file_location_source),
-                                   std::move(data.generate_), data.size_, data.expected_size_,
-                                   std::move(data.remote_name_), std::move(data.url_), data.owner_dialog_id_,
-                                   std::move(data.encryption_key_), file_id, static_cast<int8>(has_remote));
-  node->pmc_id_ = FileDbId(data.pmc_id_);
-  auto file_id_info = get_file_id_info(file_id);
-  file_id_info->node_id_ = file_node_id;
-
-  FileView file_view(get_file_node(file_id));
-
-  vector<FileId> to_merge;
-  auto register_location = [&](const auto &location, auto &mp) -> FileId * {
-    auto &other_id = mp[location];
-    if (other_id.empty()) {
-      other_id = file_id;
-      return &other_id;
-    } else {
-      to_merge.push_back(other_id);
-      return nullptr;
-    }
-  };
-  bool new_remote = false;
-  FileId *new_remote_file_id = nullptr;
-  int32 remote_key = 0;
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location != nullptr) {
-    if (context_->keep_exact_remote_location()) {
-      RemoteInfo info{*full_remote_location, file_location_source, file_id};
-      remote_key = remote_location_info_.add(info);
-      auto &stored_info = remote_location_info_.get(remote_key);
-      if (stored_info.file_id_ == file_id) {
-        get_file_id_info(file_id)->pin_flag_ = true;
-        new_remote = true;
-      } else {
-        to_merge.push_back(stored_info.file_id_);
-        if (merge_choose_remote_location(*full_remote_location, file_location_source, stored_info.remote_,
-                                         stored_info.file_location_source_) == 0) {
-          stored_info.remote_ = *full_remote_location;
-          stored_info.file_location_source_ = file_location_source;
-        }
-      }
-    } else {
-      new_remote_file_id = register_location(*full_remote_location, remote_location_to_file_id_);
-      new_remote = new_remote_file_id != nullptr;
-    }
-  }
-  FileId *new_local_file_id = nullptr;
-  const auto *full_local_location = file_view.get_full_local_location();
-  if (full_local_location != nullptr) {
-    new_local_file_id = register_location(*full_local_location, local_location_to_file_id_);
-  }
-  FileId *new_generate_file_id = nullptr;
-  const auto *generate_location = file_view.get_generate_location();
-  if (generate_location != nullptr) {
-    new_generate_file_id = register_location(*generate_location, generate_location_to_file_id_);
-  }
-  td::unique(to_merge);
-
-  int new_cnt = new_remote + (new_local_file_id != nullptr) + (new_generate_file_id != nullptr);
-  if (data.pmc_id_ == 0 && new_cnt > 0) {
-    node->need_load_from_pmc_ = true;
-  }
-  bool no_sync_merge = to_merge.size() == 1 && new_cnt == 0;
-  for (auto id : to_merge) {
-    // may invalidate node
-    merge(file_id, id, no_sync_merge).ignore();
-  }
-
-  try_flush_node(get_file_node(file_id), "register_file");
-  auto main_file_id = get_file_node(file_id)->main_file_id_;
-  if (main_file_id != file_id) {
-    if (new_remote_file_id != nullptr) {
-      *new_remote_file_id = main_file_id;
-    }
-    if (new_local_file_id != nullptr) {
-      *new_local_file_id = main_file_id;
-    }
-    if (new_generate_file_id != nullptr) {
-      *new_generate_file_id = main_file_id;
-    }
-    try_forget_file_id(file_id);
-  }
-  if (new_cnt > 0) {
-    get_file_id_info(main_file_id)->pin_flag_ = true;
-  }
-
-  if (!data.file_source_ids_.empty()) {
-    VLOG(file_references) << "Loaded " << data.file_source_ids_ << " for file " << main_file_id << " from " << source;
-    for (auto file_source_id : data.file_source_ids_) {
-      CHECK(file_source_id.is_valid());
-      context_->add_file_source(main_file_id, file_source_id, "register_file");
-    }
-  }
-  return FileId(main_file_id.get(), remote_key);
-}
-
-// 0 -- choose x
-// 1 -- choose y
-// 2 -- choose any
-static int merge_choose_local_location(const LocalFileLocation &x, const LocalFileLocation &y) {
-  auto x_type = static_cast<int32>(x.type());
-  auto y_type = static_cast<int32>(y.type());
-  if (x_type != y_type) {
-    return x_type < y_type;
-  }
-  return 2;
-}
-
-static int merge_choose_file_source_location(FileLocationSource x, FileLocationSource y) {
-  return static_cast<int>(x) < static_cast<int>(y);
-}
-
-static int merge_choose_remote_location(const FullRemoteFileLocation &x, FileLocationSource x_source,
-                                        const FullRemoteFileLocation &y, FileLocationSource y_source) {
-  LOG(INFO) << "Choose between " << x << " from " << x_source << " and " << y << " from " << y_source;
-  if (x.is_web() != y.is_web()) {
-    return x.is_web();  // prefer non-web
-  }
-  auto x_ref = x.has_file_reference();
-  auto y_ref = y.has_file_reference();
-  if (x_ref || y_ref) {
-    if (x_ref != y_ref) {
-      return !x_ref;
-    }
-    if (x.get_file_reference() != y.get_file_reference()) {
-      return merge_choose_file_source_location(x_source, y_source);
-    }
-  }
-  if ((x.get_access_hash() != y.get_access_hash() || x.get_source() != y.get_source()) &&
-      (x_source != y_source || x.is_web() || x.get_id() == y.get_id())) {
-    return merge_choose_file_source_location(x_source, y_source);
-  }
-  return 2;
-}
-
-static int merge_choose_remote_location(const NewRemoteFileLocation &x, const NewRemoteFileLocation &y) {
-  if (x.is_full_alive != y.is_full_alive) {
-    return !x.is_full_alive;
-  }
-  if (x.is_full_alive) {
-    return merge_choose_remote_location(x.full.value(), x.full_source, y.full.value(), y.full_source);
-  }
-  if (!x.partial != !y.partial) {
-    return !x.partial;
-  }
-  return 2;
-}
-
-static int merge_choose_generate_location(const unique_ptr<FullGenerateFileLocation> &x,
-                                          const unique_ptr<FullGenerateFileLocation> &y) {
-  int x_empty = (x == nullptr);
-  int y_empty = (y == nullptr);
-  if (x_empty != y_empty) {
-    return x_empty ? 1 : 0;
-  }
-  if (!x_empty && *x != *y) {
-    bool x_has_mtime = begins_with(x->conversion_, "#mtime#");
-    bool y_has_mtime = begins_with(y->conversion_, "#mtime#");
-    if (x_has_mtime != y_has_mtime) {
-      return x_has_mtime ? 0 : 1;
-    }
-    return x->conversion_ >= y->conversion_
-               ? 0
-               : 1;  // the bigger conversion, the bigger mtime or at least more stable choice
-  }
-  return 2;
-}
-
-// -1 -- error
-static int merge_choose_size(int64 x, int64 y) {
-  if (x == 0) {
-    return 1;
-  }
-  if (y == 0) {
-    return 0;
-  }
-  if (x != y) {
-    return -1;
-  }
-  return 2;
-}
-
-static int merge_choose_expected_size(int64 x, int64 y) {
-  if (x == 0) {
-    return 1;
-  }
-  if (y == 0) {
-    return 0;
-  }
-  return 2;
-}
-
-static int merge_choose_name(Slice x, Slice y) {
-  if (x.empty() != y.empty()) {
-    return x.empty() > y.empty();
-  }
-  return 2;
-}
-
-static int merge_choose_owner(DialogId x, DialogId y) {
-  if (x.is_valid() != y.is_valid()) {
-    return x.is_valid() < y.is_valid();
-  }
-  return 2;
-}
-
-static int merge_choose_main_file_id(FileId a, int8 a_priority, FileId b, int8 b_priority) {
-  if (a_priority != b_priority) {
-    return a_priority < b_priority;
-  }
-  return a.get() > b.get();
-}
-
-static int merge_choose_encryption_key(const FileEncryptionKey &a, const FileEncryptionKey &b) {
-  if (a.empty() != b.empty()) {
-    return a.empty() > b.empty();
-  }
-  if (a != b) {
-    return -1;
-  }
-  return 2;
-}
-
-void FileManager::do_cancel_download(FileNodePtr node) {
-  if (node->download_id_ == 0) {
-    return;
-  }
-  send_closure(file_download_manager_, &FileDownloadManager::cancel, node->download_id_);
-  node->download_id_ = 0;
-  node->is_download_started_ = false;
-  node->download_was_update_file_reference_ = false;
-  node->set_download_priority(0);
-}
-
-void FileManager::do_cancel_upload(FileNodePtr node) {
-  if (node->upload_id_ == 0) {
-    return;
-  }
-  send_closure(file_upload_manager_, &FileUploadManager::cancel, node->upload_id_);
-  node->upload_id_ = 0;
-  node->upload_was_update_file_reference_ = false;
-  node->set_upload_priority(0);
-}
-
-void FileManager::do_cancel_generate(FileNodePtr node) {
-  if (node->generate_id_ == 0) {
-    return;
-  }
-  send_closure(file_generate_manager_, &FileGenerateManager::cancel, node->generate_id_);
-  node->generate_id_ = 0;
-  node->generate_was_update_ = false;
-  node->set_generate_priority(0, 0);
-}
-
-Status FileManager::merge(FileId x_file_id, FileId y_file_id, bool no_sync) {
-  if (!x_file_id.is_valid()) {
-    return Status::Error(400, "First file_id is invalid");
-  }
-  FileNodePtr x_node = no_sync ? get_file_node(x_file_id) : get_sync_file_node(x_file_id);
-  if (!x_node) {
-    return Status::Error(
-        400, PSLICE() << "Can't merge files. First identifier is invalid: " << x_file_id << " and " << y_file_id);
-  }
-
-  if (!y_file_id.is_valid()) {
-    LOG(DEBUG) << "Old file is invalid";
-    return Status::OK();
-  }
-  FileNodePtr y_node = get_file_node(y_file_id);
-  if (!y_node) {
-    return Status::Error(
-        400, PSLICE() << "Can't merge files. Second identifier is invalid: " << x_file_id << " and " << y_file_id);
-  }
-
-  if (x_node.get() == y_node.get()) {
-    if (x_file_id != y_file_id) {
-      LOG(DEBUG) << "New file " << x_file_id << " and old file " << y_file_id << " are already merged";
-    }
-    try_flush_node_info(x_node, "merge 1");
-    return Status::OK();
-  }
-
-  LOG(INFO) << "Merge new file " << x_file_id << " and old file " << y_file_id;
-  if (x_node->remote_.full && y_node->remote_.full && !x_node->remote_.full.value().is_web() &&
-      !y_node->remote_.full.value().is_web() && y_node->remote_.is_full_alive &&
-      x_node->remote_.full_source == FileLocationSource::FromServer &&
-      y_node->remote_.full_source == FileLocationSource::FromServer &&
-      x_node->remote_.full.value().get_dc_id() != y_node->remote_.full.value().get_dc_id()) {
-    LOG(ERROR) << "File remote location was changed from " << y_node->remote_.full.value() << " to "
-               << x_node->remote_.full.value();
-  }
-
-  bool drop_last_successful_force_reupload_time = x_node->last_successful_force_reupload_time_ <= 0 &&
-                                                  x_node->remote_.full &&
-                                                  x_node->remote_.full_source == FileLocationSource::FromServer;
-
-  auto count_local = [](auto &node) {
-    return std::accumulate(node->file_ids_.begin(), node->file_ids_.end(), 0,
-                           [](const auto &x, const auto &y) { return x + (y.get_remote() != 0); });
-  };
-  auto x_local_file_ids = count_local(x_node);
-  auto y_local_file_ids = count_local(y_node);
-  if (x_local_file_ids + y_local_file_ids > 100) {
-  }
-
-  if (y_node->file_ids_.size() >= 100 || x_node->file_ids_.size() >= 100) {
-    LOG(INFO) << "Merge files with " << x_local_file_ids << '/' << x_node->file_ids_.size() << " and "
-              << y_local_file_ids << '/' << y_node->file_ids_.size() << " file IDs";
-  }
-
-  FileNodePtr nodes[] = {x_node, y_node, x_node};
-  FileNodeId node_ids[] = {get_file_id_info(x_file_id)->node_id_, get_file_id_info(y_file_id)->node_id_};
-  int trusted_by_source = merge_choose_file_source_location(x_node->remote_.full_source, y_node->remote_.full_source);
-
-  int local_i = merge_choose_local_location(x_node->local_, y_node->local_);
-  int remote_i = merge_choose_remote_location(x_node->remote_, y_node->remote_);
-  int generate_i = merge_choose_generate_location(x_node->generate_, y_node->generate_);
-  int size_i = merge_choose_size(x_node->size_, y_node->size_);
-  int expected_size_i = merge_choose_expected_size(x_node->expected_size_, y_node->expected_size_);
-  int remote_name_i = merge_choose_name(x_node->remote_name_, y_node->remote_name_);
-  int url_i = merge_choose_name(x_node->url_, y_node->url_);
-  int owner_i = merge_choose_owner(x_node->owner_dialog_id_, y_node->owner_dialog_id_);
-  int encryption_key_i = merge_choose_encryption_key(x_node->encryption_key_, y_node->encryption_key_);
-  int main_file_id_i = merge_choose_main_file_id(x_node->main_file_id_, x_node->main_file_id_priority_,
-                                                 y_node->main_file_id_, y_node->main_file_id_priority_);
-
-  if (size_i == -1) {
-    try_flush_node_info(x_node, "merge 2");
-    try_flush_node_info(y_node, "merge 3");
-    return Status::Error(400, PSLICE() << "Can't merge files " << x_node->local_ << '/' << x_node->remote_ << " and "
-                                       << y_node->local_ << '/' << y_node->remote_
-                                       << ". Different size: " << x_node->size_ << " and " << y_node->size_);
-  }
-  if (encryption_key_i == -1) {
-    if (nodes[remote_i]->remote_.full && nodes[local_i]->local_.type() != LocalFileLocation::Type::Partial) {
-      LOG(ERROR) << "Different encryption key in files, but lets choose same key as remote location";
-      encryption_key_i = remote_i;
-    } else {
-      try_flush_node_info(x_node, "merge 4");
-      try_flush_node_info(y_node, "merge 5");
-      return Status::Error(400, "Can't merge files. Different encryption keys");
-    }
-  }
-
-  // prefer more trusted source
-  if (remote_name_i == 2) {
-    remote_name_i = trusted_by_source;
-  }
-  if (url_i == 2) {
-    url_i = trusted_by_source;
-  }
-  if (expected_size_i == 2) {
-    expected_size_i = trusted_by_source;
-  }
-
-  int node_i =
-      std::make_tuple(y_node->pmc_id_.is_valid(), x_node->pmc_id_, y_node->file_ids_.size(), main_file_id_i == 1) >
-      std::make_tuple(x_node->pmc_id_.is_valid(), y_node->pmc_id_, x_node->file_ids_.size(), main_file_id_i == 0);
-
-  auto other_node_i = 1 - node_i;
-  FileNodePtr node = nodes[node_i];
-  FileNodePtr other_node = nodes[other_node_i];
-  auto file_view = FileView(node);
-
-  LOG(DEBUG) << "Have x_node->pmc_id_ = " << x_node->pmc_id_.get() << ", y_node->pmc_id_ = " << y_node->pmc_id_.get()
-             << ", x_node_size = " << x_node->file_ids_.size() << ", y_node_size = " << y_node->file_ids_.size()
-             << ", node_i = " << node_i << ", local_i = " << local_i << ", remote_i = " << remote_i
-             << ", generate_i = " << generate_i << ", size_i = " << size_i << ", remote_name_i = " << remote_name_i
-             << ", url_i = " << url_i << ", owner_i = " << owner_i << ", encryption_key_i = " << encryption_key_i
-             << ", main_file_id_i = " << main_file_id_i << ", trusted_by_source = " << trusted_by_source
-             << ", x_source = " << x_node->remote_.full_source << ", y_source = " << y_node->remote_.full_source;
-  if (local_i == other_node_i) {
-    do_cancel_download(node);
-    node->set_download_offset(other_node->download_offset_);
-    node->set_local_location(other_node->local_, other_node->download_offset_, other_node->local_ready_prefix_size_);
-    node->download_id_ = other_node->download_id_;
-    node->download_was_update_file_reference_ = other_node->download_was_update_file_reference_;
-    node->is_download_started_ |= other_node->is_download_started_;
-    node->set_download_priority(other_node->download_priority_);
-    other_node->download_id_ = 0;
-    other_node->download_was_update_file_reference_ = false;
-    other_node->is_download_started_ = false;
-    other_node->download_priority_ = 0;
-    other_node->download_offset_ = 0;
-    other_node->local_ready_prefix_size_ = 0;
-
-    //do_cancel_generate(node);
-    //node->set_generate_location(std::move(other_node->generate_));
-    //node->generate_id_ = other_node->generate_id_;
-    //node->set_generate_priority(other_node->generate_download_priority_, other_node->generate_upload_priority_);
-    //other_node->generate_id_ = 0;
-    //other_node->generate_was_update_ = false;
-    //other_node->generate_priority_ = 0;
-    //other_node->generate_download_priority_ = 0;
-    //other_node->generate_upload_priority_ = 0;
-  } else {
-    do_cancel_download(other_node);
-    //do_cancel_generate(other_node);
-  }
-
-  if (remote_i == other_node_i) {
-    do_cancel_upload(node);
-    node->set_new_remote_location(std::move(other_node->remote_));
-    node->upload_id_ = other_node->upload_id_;
-    node->upload_was_update_file_reference_ = other_node->upload_was_update_file_reference_;
-    node->set_upload_priority(other_node->upload_priority_);
-    node->set_upload_pause(other_node->upload_pause_);
-    other_node->upload_id_ = 0;
-    other_node->upload_was_update_file_reference_ = false;
-    other_node->upload_priority_ = 0;
-    other_node->upload_pause_ = FileUploadId();
-  } else {
-    do_cancel_upload(other_node);
-  }
-
-  if (generate_i == other_node_i) {
-    do_cancel_generate(node);
-    node->set_generate_location(std::move(other_node->generate_));
-    node->generate_id_ = other_node->generate_id_;
-    node->set_generate_priority(other_node->generate_download_priority_, other_node->generate_upload_priority_);
-    other_node->generate_id_ = 0;
-    other_node->generate_priority_ = 0;
-    other_node->generate_download_priority_ = 0;
-    other_node->generate_upload_priority_ = 0;
-  } else {
-    do_cancel_generate(other_node);
-  }
-
-  if (size_i == other_node_i) {
-    node->set_size(other_node->size_);
-  }
-
-  if (expected_size_i == other_node_i) {
-    node->set_expected_size(other_node->expected_size_);
-  }
-
-  if (remote_name_i == other_node_i) {
-    node->set_remote_name(other_node->remote_name_);
-  }
-
-  if (url_i == other_node_i) {
-    node->set_url(other_node->url_);
-  }
-
-  if (owner_i == other_node_i) {
-    node->set_owner_dialog_id(other_node->owner_dialog_id_);
-  }
-
-  if (encryption_key_i == other_node_i) {
-    node->set_encryption_key(other_node->encryption_key_);
-    nodes[node_i]->set_encryption_key(nodes[encryption_key_i]->encryption_key_);
-  }
-  node->need_load_from_pmc_ |= other_node->need_load_from_pmc_;
-  node->can_search_locally_ &= other_node->can_search_locally_;
-  node->upload_prefer_small_ |= other_node->upload_prefer_small_;
-
-  if (drop_last_successful_force_reupload_time) {
-    node->last_successful_force_reupload_time_ = -1e10;
-  } else if (other_node->last_successful_force_reupload_time_ > node->last_successful_force_reupload_time_) {
-    node->last_successful_force_reupload_time_ = other_node->last_successful_force_reupload_time_;
-  }
-
-  if (main_file_id_i == other_node_i) {
-    context_->on_merge_files(other_node->main_file_id_, node->main_file_id_);
-    node->main_file_id_ = other_node->main_file_id_;
-    node->main_file_id_priority_ = other_node->main_file_id_priority_;
-  } else {
-    context_->on_merge_files(node->main_file_id_, other_node->main_file_id_);
-  }
-
-  bool send_updates_flag = false;
-  auto other_pmc_id = other_node->pmc_id_;
-  append(node->file_ids_, other_node->file_ids_);
-
-  for (auto file_id : other_node->file_ids_) {
-    auto file_id_info = get_file_id_info(file_id);
-    CHECK(file_id_info->node_id_ == node_ids[other_node_i]);
-    file_id_info->node_id_ = node_ids[node_i];
-  }
-  other_node = {};
-
-  if (send_updates_flag) {
-    // node might not changed, but other_node might changed, so we need to send update anyway
-    VLOG(update_file) << "File " << node->main_file_id_ << " has been merged";
-    node->on_info_changed();
-  }
-
-  if (node->file_ids_.size() > (static_cast<size_t>(1) << file_node_size_warning_exp_)) {
-    LOG(WARNING) << "File of type " << file_view.get_type() << " has " << node->file_ids_.size() << " file identifiers";
-    file_node_size_warning_exp_++;
-  }
-
-  // Check if some download/upload queries are ready
-  for (auto file_id : vector<FileId>(node->file_ids_)) {
-    if (file_view.has_full_local_location()) {
-      finish_downloads(file_id, Status::OK());
-    }
-    if (file_view.has_active_upload_remote_location()) {
-      finish_uploads(file_id, Status::OK());
-    }
-  }
-
-  file_nodes_[node_ids[other_node_i]] = nullptr;
-
-  run_generate(node);
-  run_download(node, false);
-  run_upload(node, {});
-
-  if (other_pmc_id.is_valid()) {
-    // node might not changed, but we need to merge nodes in pmc anyway
-    node->on_pmc_changed();
-  }
-  try_flush_node_full(node, node_i != remote_i, node_i != local_i, node_i != generate_i, other_pmc_id);
-
-  return Status::OK();
-}
-
-void FileManager::try_merge_documents(FileId new_file_id, FileId old_file_id) {
-  if (!old_file_id.is_valid() || !new_file_id.is_valid()) {
-    return;
-  }
-  FileView old_file_view = get_file_view(old_file_id);
-  FileView new_file_view = get_file_view(new_file_id);
-  // if file type has changed, but file size remains the same, we are trying to update local location of the new
-  // file with the old local location
-  if (old_file_view.has_full_local_location() && !new_file_view.has_full_local_location() &&
-      old_file_view.size() != 0 && old_file_view.size() == new_file_view.size()) {
-    auto old_file_type = old_file_view.get_type();
-    auto new_file_type = new_file_view.get_type();
-
-    if (is_document_file_type(old_file_type) && is_document_file_type(new_file_type)) {
-      const auto *old_location = old_file_view.get_full_local_location();
-      auto r_file_id =
-          register_local(FullLocalFileLocation(new_file_type, old_location->path_, old_location->mtime_nsec_),
-                         DialogId(), old_file_view.size());
-      if (r_file_id.is_ok()) {
-        LOG_STATUS(merge(new_file_id, r_file_id.ok()));
-      }
-    }
-  }
-}
-
-void FileManager::add_file_source(FileId file_id, FileSourceId file_source_id, const char *source) {
-  auto node = get_sync_file_node(file_id);  // synchronously load the file to preload known file sources
-  if (!node) {
-    return;
-  }
-
-  CHECK(file_source_id.is_valid());
-  if (context_->add_file_source(node->main_file_id_, file_source_id, source)) {
-    node->on_pmc_changed();
-    try_flush_node_pmc(node, "add_file_source");
-  }
-}
-
-void FileManager::remove_file_source(FileId file_id, FileSourceId file_source_id, const char *source) {
-  auto node = get_sync_file_node(file_id);  // synchronously load the file to preload known file sources
-  if (!node) {
-    return;
-  }
-
-  CHECK(file_source_id.is_valid());
-  if (context_->remove_file_source(node->main_file_id_, file_source_id, source)) {
-    node->on_pmc_changed();
-    try_flush_node_pmc(node, "remove_file_source");
-  }
-}
-
-void FileManager::change_files_source(FileSourceId file_source_id, const vector<FileId> &old_file_ids,
-                                      const vector<FileId> &new_file_ids, const char *source) {
-  if (old_file_ids == new_file_ids) {
-    return;
-  }
-  CHECK(file_source_id.is_valid());
-
-  auto old_main_file_ids = get_main_file_ids(old_file_ids);
-  auto new_main_file_ids = get_main_file_ids(new_file_ids);
-  for (auto file_id : old_main_file_ids) {
-    auto it = new_main_file_ids.find(file_id);
-    if (it == new_main_file_ids.end()) {
-      remove_file_source(file_id, file_source_id, source);
-    } else {
-      new_main_file_ids.erase(it);
-    }
-  }
-  for (auto file_id : new_main_file_ids) {
-    add_file_source(file_id, file_source_id, source);
-  }
-}
-
-void FileManager::on_file_reference_repaired(FileId file_id, FileSourceId file_source_id, Result<Unit> &&result,
-                                             Promise<Unit> &&promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  auto file_view = get_file_view(file_id);
-  CHECK(!file_view.empty());
-  if (result.is_ok() &&
-      (!file_view.has_active_upload_remote_location() || !file_view.has_active_download_remote_location())) {
-    result = Status::Error("No active remote location");
-  }
-  if (result.is_error() && result.error().code() != 429 && result.error().code() < 500) {
-    VLOG(file_references) << "Invalid " << file_source_id << " " << result.error();
-    remove_file_source(file_id, file_source_id, "on_file_reference_repaired");
-  }
-  promise.set_result(std::move(result));
-}
-
-FlatHashSet<FileId, FileIdHash> FileManager::get_main_file_ids(const vector<FileId> &file_ids) {
-  FlatHashSet<FileId, FileIdHash> result;
-  for (auto file_id : file_ids) {
-    auto node = get_file_node(file_id);
-    if (node) {
-      result.insert(node->main_file_id_);
-    }
-  }
-  return result;
-}
-
-void FileManager::try_flush_node_full(FileNodePtr node, bool new_remote, bool new_local, bool new_generate,
-                                      FileDbId other_pmc_id) {
-  if (node->need_pmc_flush()) {
-    if (file_db_) {
-      load_from_pmc(node, true, true, true);
-      flush_to_pmc(node, new_remote, new_local, new_generate, "try_flush_node_full");
-      if (other_pmc_id.is_valid() && node->pmc_id_ != other_pmc_id) {
-        file_db_->set_file_data_ref(other_pmc_id, node->pmc_id_);
-      }
-    }
-    node->on_pmc_flushed();
-  }
-
-  try_flush_node_info(node, "try_flush_node_full");
-}
-
-void FileManager::try_flush_node(FileNodePtr node, const char *source) {
-  try_flush_node_pmc(node, source);
-  try_flush_node_info(node, source);
-}
-
-void FileManager::try_flush_node_pmc(FileNodePtr node, const char *source) {
-  if (node->need_pmc_flush()) {
-    if (file_db_) {
-      load_from_pmc(node, true, true, true);
-      flush_to_pmc(node, false, false, false, source);
-    }
-    node->on_pmc_flushed();
-  }
-}
-
-void FileManager::try_flush_node_info(FileNodePtr node, const char *source) {
-  if (node->need_info_flush()) {
-    for (auto file_id : vector<FileId>(node->file_ids_)) {
-      VLOG(update_file) << "Send UpdateFile about file " << file_id << " from " << source;
-      context_->on_file_updated(file_id);
-      get_file_id_info(file_id)->pin_flag_ = true;
-      auto it = file_download_requests_.find(file_id);
-      if (it != file_download_requests_.end()) {
-        for (auto &download_info : it->second.internal_downloads_) {
-          CHECK(download_info.second.download_callback_ != nullptr);
-          download_info.second.download_callback_->on_progress(file_id);
-        }
-      }
-    }
-    node->on_info_flushed();
-  }
-}
-
-void FileManager::clear_from_pmc(FileNodePtr node) {
-  if (!file_db_) {
-    return;
-  }
-  if (node->pmc_id_.empty()) {
-    return;
-  }
-
-  LOG(INFO) << "Delete files " << node->file_ids_ << " from pmc";
-  FileData data;
-  auto file_view = FileView(node);
-  if (file_view.has_full_local_location()) {
-    data.local_ = node->local_;
-    prepare_path_for_pmc(data.local_.full().file_type_, data.local_.full().path_);
-  }
-  if (file_view.has_full_remote_location()) {
-    data.remote_ = RemoteFileLocation(*node->remote_.full);
-  }
-  if (file_view.has_generate_location()) {
-    data.generate_ = make_unique<FullGenerateFileLocation>(*node->generate_);
-  }
-  file_db_->clear_file_data(node->pmc_id_, data);
-  node->pmc_id_ = FileDbId();
-}
-
-void FileManager::flush_to_pmc(FileNodePtr node, bool new_remote, bool new_local, bool new_generate,
-                               const char *source) {
-  if (!file_db_) {
-    return;
-  }
-  FileView file_view(node);
-  bool create_flag = false;
-  if (node->pmc_id_.empty()) {
-    create_flag = true;
-    node->pmc_id_ = file_db_->get_next_file_db_id();
-  }
-
-  FileData data;
-  data.pmc_id_ = node->pmc_id_.get();
-  data.local_ = node->local_;
-  if (data.local_.type() == LocalFileLocation::Type::Full) {
-    prepare_path_for_pmc(data.local_.full().file_type_, data.local_.full().path_);
-  }
-  if (node->remote_.full) {
-    data.remote_ = RemoteFileLocation(node->remote_.full.value());
-  } else if (node->remote_.partial) {
-    data.remote_ = RemoteFileLocation(*node->remote_.partial);
-  }
-  if (node->generate_ != nullptr && !begins_with(node->generate_->conversion_, "#file_id#")) {
-    data.generate_ = make_unique<FullGenerateFileLocation>(*node->generate_);
-  }
-
-  // TODO: not needed when GenerateLocation has constant conversion
-  if (data.remote_.type() != RemoteFileLocation::Type::Full && data.local_.type() != LocalFileLocation::Type::Full) {
-    data.local_ = LocalFileLocation();
-    data.remote_ = RemoteFileLocation();
-  }
-  if (data.remote_.type() != RemoteFileLocation::Type::Full && node->encryption_key_.is_secure()) {
-    data.remote_ = RemoteFileLocation();
-  }
-
-  data.size_ = node->size_;
-  data.expected_size_ = node->expected_size_;
-  data.remote_name_ = node->remote_name_;
-  data.encryption_key_ = node->encryption_key_;
-  data.url_ = node->url_;
-  data.owner_dialog_id_ = node->owner_dialog_id_;
-  data.file_source_ids_ = context_->get_some_file_sources(file_view.get_main_file_id());
-  VLOG(file_references) << "Save file " << file_view.get_main_file_id() << " to database with " << data.file_source_ids_
-                        << " from " << source;
-
-  file_db_->set_file_data(node->pmc_id_, data, (create_flag || new_remote), (create_flag || new_local),
-                          (create_flag || new_generate));
-}
-
-FileNode *FileManager::get_file_node_raw(FileId file_id, FileNodeId *file_node_id) {
-  if (file_id.get() <= 0 || file_id.get() >= static_cast<int32>(file_id_info_.size())) {
-    return nullptr;
-  }
-  FileNodeId node_id = file_id_info_[file_id.get()]->node_id_;
-  if (node_id == 0) {
-    return nullptr;
-  }
-  if (file_node_id != nullptr) {
-    *file_node_id = node_id;
-  }
-  return file_nodes_[node_id].get();
-}
-
-FileNodePtr FileManager::get_sync_file_node(FileId file_id) {
-  auto file_node = get_file_node(file_id);
-  if (!file_node) {
-    return {};
-  }
-  load_from_pmc(file_node, true, true, true);
-  return file_node;
-}
-
-void FileManager::load_from_pmc(FileNodePtr node, bool new_remote, bool new_local, bool new_generate) {
-  if (!node->need_load_from_pmc_) {
-    return;
-  }
-  node->need_load_from_pmc_ = false;
-  if (!file_db_) {
-    return;
-  }
-  auto file_id = node->main_file_id_;
-  auto file_view = get_file_view(file_id);
-  CHECK(!file_view.empty());
-
-  FullRemoteFileLocation remote;
-  FullLocalFileLocation local;
-  FullGenerateFileLocation generate;
-  if (new_remote) {
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    if (full_remote_location != nullptr) {
-      remote = *full_remote_location;
-    } else {
-      new_remote = false;
-    }
-  }
-  if (new_local) {
-    const auto *full_local_location = file_view.get_full_local_location();
-    if (full_local_location != nullptr) {
-      local = *full_local_location;
-      prepare_path_for_pmc(local.file_type_, local.path_);
-    } else {
-      new_local = false;
-    }
-  }
-  if (new_generate) {
-    const auto *generate_location = file_view.get_generate_location();
-    if (generate_location != nullptr) {
-      generate = *generate_location;
-    } else {
-      new_generate = false;
-    }
-  }
-
-  LOG(DEBUG) << "Load from pmc file " << file_id << '/' << file_view.get_main_file_id()
-             << ", new_remote = " << new_remote << ", new_local = " << new_local << ", new_generate = " << new_generate;
-  auto load = [&](auto location, const char *source) {
-    TRY_RESULT(file_data, file_db_->get_file_data_sync(location));
-    TRY_RESULT(new_file_id, register_file(std::move(file_data), FileLocationSource::FromDatabase, source));
-    TRY_STATUS(merge(file_id, new_file_id));  // merge manually to keep merge parameters order
-    return Status::OK();
-  };
-  if (new_remote) {
-    load(remote, "load remote from database").ignore();
-  }
-  if (new_local) {
-    load(local, "load local from database").ignore();
-  }
-  if (new_generate) {
-    load(generate, "load generate from database").ignore();
-  }
-}
-
-bool FileManager::set_encryption_key(FileId file_id, FileEncryptionKey key) {
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    return false;
-  }
-  auto file_view = FileView(node);
-  if (file_view.has_full_local_location() && file_view.has_full_remote_location()) {
-    return false;
-  }
-  if (!node->encryption_key_.empty()) {
-    return false;
-  }
-  node->set_encryption_key(std::move(key));
-  try_flush_node_pmc(node, "set_encryption_key");
-  return true;
-}
-
-bool FileManager::set_content(FileId file_id, BufferSlice bytes) {
-  if (G()->get_option_boolean("ignore_inline_thumbnails")) {
-    return false;
-  }
-
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    return false;
-  }
-
-  if (node->local_.type() == LocalFileLocation::Type::Full) {
-    // There was no download so we don't need an update
-    return true;
-  }
-
-  do_cancel_download(node);
-
-  class Callback final : public DownloadCallback {
-   public:
-    void on_download_ok(FileId file_id) final {
-      LOG(INFO) << "Successfully saved content of " << file_id;
-    }
-    void on_download_error(FileId file_id, Status error) final {
-      LOG(INFO) << "Failed to save content of " << file_id << ": " << error;
-    }
-  };
-
-  int8 priority = 10;
-  auto internal_download_id = get_internal_download_id();
-  auto &requests = file_download_requests_[file_id];
-  auto &download_info = requests.internal_downloads_[internal_download_id];
-  download_info.download_priority_ = priority;
-  download_info.download_callback_ = std::make_shared<Callback>();
-
-  node->set_download_priority(priority);
-
-  FileDownloadManager::QueryId query_id =
-      download_queries_.create(DownloadQuery{file_id, DownloadQuery::Type::SetContent});
-  node->download_id_ = query_id;
-  node->is_download_started_ = true;
-  send_closure(file_download_manager_, &FileDownloadManager::from_bytes, query_id,
-               node->remote_.full.value().file_type_, std::move(bytes), node->suggested_path());
-  return true;
-}
-
-void FileManager::get_content(FileId file_id, Promise<BufferSlice> promise) {
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    return promise.set_error(Status::Error("Unknown file_id"));
-  }
-  check_local_location(node, true).ignore();
-
-  auto file_view = FileView(node);
-  const auto *full_local_location = file_view.get_full_local_location();
-  if (full_local_location == nullptr) {
-    return promise.set_error(Status::Error("No local location"));
-  }
-
-  send_closure(file_load_manager_, &FileLoadManager::get_content, full_local_location->path_, std::move(promise));
-}
-
-void FileManager::read_file_part(FileId file_id, int64 offset, int64 count, int left_tries,
-                                 Promise<td_api::object_ptr<td_api::filePart>> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  if (!file_id.is_valid()) {
-    return promise.set_error(Status::Error(400, "File identifier is invalid"));
-  }
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    return promise.set_error(Status::Error(400, "File not found"));
-  }
-  if (offset < 0) {
-    return promise.set_error(Status::Error(400, "Parameter offset must be non-negative"));
-  }
-  if (count < 0) {
-    return promise.set_error(Status::Error(400, "Parameter count must be non-negative"));
-  }
-
-  auto file_view = FileView(node);
-
-  if (count == 0) {
-    count = file_view.downloaded_prefix(offset);
-    if (count == 0) {
-      return promise.set_value(td_api::make_object<td_api::filePart>());
-    }
-  } else if (file_view.downloaded_prefix(offset) < count) {
-    // TODO this check is safer to do in another thread
-    return promise.set_error(Status::Error(400, "There is not enough downloaded bytes in the file to read"));
-  }
-  if (count >= static_cast<int64>(std::numeric_limits<size_t>::max() / 2 - 1)) {
-    return promise.set_error(Status::Error(400, "Part length is too big"));
-  }
-
-  const string *path = nullptr;
-  bool is_partial = false;
-  const auto *full_local_location = file_view.get_full_local_location();
-  if (full_local_location != nullptr) {
-    path = &full_local_location->path_;
-    if (!begins_with(*path, get_files_dir(file_view.get_type()))) {
-      return promise.set_error(Status::Error(400, "File is not inside the cache"));
-    }
-  } else {
-    CHECK(node->local_.type() == LocalFileLocation::Type::Partial);
-    path = &node->local_.partial().path_;
-    is_partial = true;
-  }
-
-  auto read_file_part_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), file_id, offset, count, left_tries, is_partial,
-                              promise = std::move(promise)](Result<string> r_bytes) mutable {
-        if (r_bytes.is_error()) {
-          LOG(INFO) << "Failed to read file bytes: " << r_bytes.error();
-          if (left_tries == 1 || !is_partial) {
-            return promise.set_error(Status::Error(400, "Failed to read the file"));
-          }
-
-          // the temporary file could be moved from temp to persistent directory
-          // we need to wait for the corresponding update and repeat the reading
-          create_actor<SleepActor>("RepeatReadFilePartActor", 0.01,
-                                   PromiseCreator::lambda([actor_id, file_id, offset, count, left_tries,
-                                                           promise = std::move(promise)](Unit) mutable {
-                                     send_closure(actor_id, &FileManager::read_file_part, file_id, offset, count,
-                                                  left_tries - 1, std::move(promise));
-                                   }))
-              .release();
-        } else {
-          auto result = td_api::make_object<td_api::filePart>();
-          result->data_ = r_bytes.move_as_ok();
-          promise.set_value(std::move(result));
-        }
-      });
-  send_closure(file_load_manager_, &FileLoadManager::read_file_part, *path, offset, count,
-               std::move(read_file_part_promise));
-}
-
-void FileManager::delete_file(FileId file_id, Promise<Unit> promise, const char *source) {
-  LOG(INFO) << "Trying to delete file " << file_id << " from " << source;
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    return promise.set_value(Unit());
-  }
-
-  auto file_view = FileView(node);
-
-  send_closure(G()->download_manager(), &DownloadManager::remove_file_if_finished, file_view.get_main_file_id());
-  string path;
-  if (file_view.has_full_local_location()) {
-    if (begins_with(file_view.get_full_local_location()->path_, get_files_dir(file_view.get_type()))) {
-      clear_from_pmc(node);
-      if (context_->need_notify_on_new_files()) {
-        context_->on_new_file(-file_view.size(), -file_view.get_allocated_local_size(), -1);
-      }
-      path = std::move(node->local_.full().path_);
-    }
-  } else {
-    if (file_view.get_type() == FileType::Encrypted) {
-      clear_from_pmc(node);
-    }
-    if (node->local_.type() == LocalFileLocation::Type::Partial) {
-      path = std::move(node->local_.partial().path_);
-    }
-  }
-
-  if (path.empty()) {
-    return promise.set_value(Unit());
-  }
-
-  LOG(INFO) << "Unlink file " << file_id << " at " << path;
-  node->drop_local_location();
-  try_flush_node(node, "delete_file");
-  send_closure(file_load_manager_, &FileLoadManager::unlink_file, path, std::move(promise));
-}
-
-int64 FileManager::get_internal_download_id() {
-  return ++internal_load_id_;
-}
-
-int64 FileManager::get_internal_upload_id() {
-  return ++internal_load_id_;
-}
-
-void FileManager::download_file(FileId file_id, int32 priority, int64 offset, int64 limit, bool synchronous,
-                                Promise<td_api::object_ptr<td_api::file>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_priority(priority));
-  if (offset < 0) {
-    return promise.set_error(Status::Error(400, "Download offset must be non-negative"));
-  }
-  if (limit < 0) {
-    return promise.set_error(Status::Error(400, "Download limit must be non-negative"));
-  }
-
-  auto file_view = get_file_view(file_id);
-  if (file_view.empty()) {
-    return promise.set_error(Status::Error(400, "File not found"));
-  }
-
-  auto info_it = pending_user_file_downloads_.find(file_id);
-  UserFileDownloadInfo *info = info_it == pending_user_file_downloads_.end() ? nullptr : &info_it->second;
-  if (info != nullptr && (offset != info->offset_ || limit != info->limit_)) {
-    // we can't have two pending user requests with different offset and limit, so cancel all previous requests
-    auto promises = std::move(info->promises_);
-    if (!synchronous) {
-      pending_user_file_downloads_.erase(info_it);
-    } else {
-      info->promises_.clear();
-    }
-    fail_promises(promises, Status::Error(200, "Canceled by another downloadFile request"));
-  }
-  if (synchronous) {
-    if (info == nullptr) {
-      info = &pending_user_file_downloads_[file_id];
-    }
-    info->offset_ = offset;
-    info->limit_ = limit;
-    info->promises_.push_back(std::move(promise));
-
-    download(file_id, 0, user_download_file_callback_, priority, offset, limit);
-  } else {
-    download(file_id, 0, user_download_file_callback_, priority, offset, limit, std::move(promise));
-  }
-}
-
-void FileManager::on_user_file_download_finished(FileId file_id) {
-  auto it = pending_user_file_downloads_.find(file_id);
-  if (it == pending_user_file_downloads_.end()) {
-    return;
-  }
-  auto offset = it->second.offset_;
-  auto limit = it->second.limit_;
-  if (limit == 0) {
-    limit = std::numeric_limits<int64>::max();
-  }
-  auto promises = std::move(it->second.promises_);
-  pending_user_file_downloads_.erase(it);
-
-  for (auto &promise : promises) {
-    auto file_object = get_file_object(file_id);
-    CHECK(file_object != nullptr);
-    auto download_offset = file_object->local_->download_offset_;
-    auto downloaded_size = file_object->local_->downloaded_prefix_size_;
-    auto file_size = file_object->size_;
-    if (file_object->local_->is_downloading_completed_ ||
-        (download_offset <= offset && download_offset + downloaded_size >= offset &&
-         ((file_size != 0 && download_offset + downloaded_size == file_size) ||
-          download_offset + downloaded_size - offset >= limit))) {
-      promise.set_value(std::move(file_object));
-    } else {
-      promise.set_error(Status::Error(400, "File download has failed or was canceled"));
-    }
-  }
-}
-
-void FileManager::download(FileId file_id, int64 internal_download_id, std::shared_ptr<DownloadCallback> callback,
-                           int32 new_priority, int64 offset, int64 limit,
-                           Promise<td_api::object_ptr<td_api::file>> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-  CHECK(callback != nullptr);
-  CHECK(new_priority > 0);
-
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    LOG(INFO) << "File " << file_id << " not found";
-    auto error = Status::Error(400, "File not found");
-    callback->on_download_error(file_id, error.clone());
-    return promise.set_error(std::move(error));
-  }
-  if (node->local_.type() == LocalFileLocation::Type::Empty) {
-    return download_impl(file_id, internal_download_id, std::move(callback), new_priority, offset, limit, Status::OK(),
-                         std::move(promise));
-  }
-
-  LOG(INFO) << "Asynchronously check location of file " << file_id << " before downloading";
-  auto check_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), file_id, internal_download_id, callback = std::move(callback),
-                              new_priority, offset, limit, promise = std::move(promise)](Result<Unit> result) mutable {
-        Status check_status;
-        if (result.is_error()) {
-          check_status = result.move_as_error();
-        }
-        send_closure(actor_id, &FileManager::download_impl, file_id, internal_download_id, std::move(callback),
-                     new_priority, offset, limit, std::move(check_status), std::move(promise));
-      });
-  check_local_location_async(node, true, std::move(check_promise));
-}
-
-void FileManager::download_impl(FileId file_id, int64 internal_download_id, std::shared_ptr<DownloadCallback> callback,
-                                int32 new_priority, int64 offset, int64 limit, Status check_status,
-                                Promise<td_api::object_ptr<td_api::file>> promise) {
-  TRY_STATUS_PROMISE(promise, G()->close_status());
-
-  LOG(INFO) << "Download file " << file_id << " with priority " << new_priority << " and internal identifier "
-            << internal_download_id;
-  auto node = get_file_node(file_id);
-  CHECK(node);
-
-  if (check_status.is_error()) {
-    LOG(WARNING) << "Need to redownload file " << file_id << ": " << check_status;
-  }
-  if (node->local_.type() == LocalFileLocation::Type::Full) {
-    LOG(INFO) << "File " << file_id << " is already downloaded";
-    callback->on_download_ok(file_id);
-    return promise.set_value(get_file_object(file_id));
-  }
-
-  FileView file_view(node);
-  if (!file_view.can_download_from_server() && !file_view.can_generate()) {
-    LOG(INFO) << "File " << file_id << " can't be downloaded";
-    auto error = Status::Error(400, "Can't download or generate the file");
-    callback->on_download_error(file_id, error.clone());
-    return promise.set_error(std::move(error));
-  }
-
-  auto &requests = file_download_requests_[file_id];
-  if (internal_download_id != 0) {
-    CHECK(offset == -1);
-    CHECK(limit == -1);
-    auto &download_info = requests.internal_downloads_[internal_download_id];
-    CHECK(download_info.download_callback_ == nullptr);
-    download_info.download_priority_ = narrow_cast<int8>(new_priority);
-    download_info.download_callback_ = std::move(callback);
-    download_info.download_callback_->on_progress(file_id);
-  } else {
-    node->set_download_offset(offset);
-    node->set_download_limit(limit);
-    requests.user_offset_ = offset;
-    requests.user_limit_ = limit;
-    requests.user_download_priority_ = narrow_cast<int8>(new_priority);
-  }
-
-  run_generate(node);
-  run_download(node, true);
-
-  try_flush_node(node, "download");
-  promise.set_value(get_file_object(file_id));
-}
-
-std::shared_ptr<FileManager::DownloadCallback> FileManager::extract_download_callback(FileId file_id,
-                                                                                      int64 internal_download_id) {
-  auto it = file_download_requests_.find(file_id);
-  if (it == file_download_requests_.end()) {
-    return nullptr;
-  }
-  std::shared_ptr<DownloadCallback> callback;
-  if (internal_download_id != 0) {
-    auto download_info_it = it->second.internal_downloads_.find(internal_download_id);
-    if (download_info_it == it->second.internal_downloads_.end()) {
-      return nullptr;
-    }
-    callback = std::move(download_info_it->second.download_callback_);
-    it->second.internal_downloads_.erase(download_info_it);
-  } else {
-    if (it->second.user_download_priority_ == 0) {
-      return nullptr;
-    }
-    callback = user_download_file_callback_;
-    it->second.user_download_priority_ = 0;
-    it->second.user_offset_ = 0;
-    it->second.user_limit_ = 0;
-  }
-  if (it->second.user_download_priority_ == 0 && it->second.internal_downloads_.empty()) {
-    file_download_requests_.erase(it);
-  }
-  return callback;
-}
-
-void FileManager::finish_downloads(FileId file_id, const Status &status) {
-  auto it = file_download_requests_.find(file_id);
-  if (it == file_download_requests_.end()) {
-    return;
-  }
-  vector<std::shared_ptr<DownloadCallback>> callbacks;
-  for (auto &download_info : it->second.internal_downloads_) {
-    callbacks.push_back(std::move(download_info.second.download_callback_));
-  }
-  if (it->second.user_download_priority_ != 0) {
-    callbacks.push_back(user_download_file_callback_);
-  }
-  file_download_requests_.erase(it);
-
-  for (auto &callback : callbacks) {
-    CHECK(callback != nullptr);
-    if (status.is_ok()) {
-      callback->on_download_ok(file_id);
-    } else {
-      callback->on_download_error(file_id, status.clone());
-    }
-  }
-}
-
-void FileManager::cancel_download(FileId file_id, int64 internal_download_id, bool only_if_pending) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    return;
-  }
-  if (only_if_pending && node->is_download_started_) {
-    LOG(INFO) << "File " << file_id << " is being downloaded";
-    return;
-  }
-
-  auto callback = extract_download_callback(file_id, internal_download_id);
-  if (callback == nullptr) {
-    return;
-  }
-
-  LOG(INFO) << "Cancel download of file " << file_id;
-  callback->on_download_error(file_id, Status::Error(200, "Canceled"));
-
-  run_generate(node);
-  run_download(node, true);
-
-  try_flush_node(node, "cancel_download");
-}
-
-void FileManager::run_download(FileNodePtr node, bool force_update_priority) {
-  int8 priority = 0;
-  bool ignore_download_limit = false;
-  for (auto file_id : node->file_ids_) {
-    auto it = file_download_requests_.find(file_id);
-    if (it != file_download_requests_.end()) {
-      if (it->second.user_download_priority_ > priority) {
-        priority = it->second.user_download_priority_;
-      }
-      for (auto &download_info : it->second.internal_downloads_) {
-        if (download_info.second.download_priority_ > priority) {
-          priority = download_info.second.download_priority_;
-        }
-        ignore_download_limit = true;
-      }
-    }
-  }
-
-  auto old_priority = node->download_priority_;
-
-  if (priority == 0) {
-    node->set_download_priority(priority);
-    if (old_priority != 0) {
-      LOG(INFO) << "Cancel downloading of file " << node->main_file_id_;
-      do_cancel_download(node);
-    }
-    return;
-  }
-
-  if (node->need_load_from_pmc_) {
-    LOG(INFO) << "Skip run_download, because file " << node->main_file_id_ << " needs to be loaded from PMC";
-    return;
-  }
-  if (node->generate_id_) {
-    LOG(INFO) << "Skip run_download, because file " << node->main_file_id_ << " is being generated";
-    return;
-  }
-  auto file_view = FileView(node);
-  if (!file_view.can_download_from_server()) {
-    LOG(INFO) << "Skip run_download, because file " << node->main_file_id_ << " can't be downloaded from server";
-    return;
-  }
-  node->set_download_priority(priority);
-  node->set_ignore_download_limit(ignore_download_limit);
-  bool need_update_offset = node->is_download_offset_dirty_;
-  node->is_download_offset_dirty_ = false;
-
-  bool need_update_limit = node->is_download_limit_dirty_;
-  node->is_download_limit_dirty_ = false;
-
-  if (old_priority != 0) {
-    LOG(INFO) << "Update download offset and limits of file " << node->main_file_id_;
-    CHECK(node->download_id_ != 0);
-    if (force_update_priority || priority != old_priority) {
-      send_closure(file_download_manager_, &FileDownloadManager::update_priority, node->download_id_, priority);
-    }
-    if (need_update_limit || need_update_offset) {
-      auto download_offset = node->download_offset_;
-      auto download_limit = node->get_download_limit();
-      if (file_view.is_encrypted_any()) {
-        CHECK(download_offset <= MAX_FILE_SIZE);
-        CHECK(download_limit <= MAX_FILE_SIZE);
-        download_limit += download_offset;
-        download_offset = 0;
-      }
-      send_closure(file_download_manager_, &FileDownloadManager::update_downloaded_part, node->download_id_,
-                   download_offset, download_limit);
-    }
-    return;
-  }
-
-  CHECK(node->download_id_ == 0);
-  CHECK(!node->file_ids_.empty());
-  auto file_id = node->main_file_id_;
-
-  if (node->need_reload_photo_ && file_view.may_reload_photo()) {
-    LOG(INFO) << "Reload photo from file " << node->main_file_id_;
-    FileDownloadManager::QueryId query_id =
-        download_queries_.create(DownloadQuery{file_id, DownloadQuery::Type::DownloadReloadDialog});
-    node->download_id_ = query_id;
-    context_->reload_photo(file_view.get_full_remote_location()->get_source(),
-                           PromiseCreator::lambda([actor_id = actor_id(this), query_id, file_id](Result<Unit> res) {
-                             Status error;
-                             if (res.is_ok()) {
-                               error = Status::Error("FILE_DOWNLOAD_ID_INVALID");
-                             } else {
-                               error = res.move_as_error();
-                             }
-                             VLOG(file_references)
-                                 << "Receive result from reload photo for file " << file_id << ": " << error;
-                             send_closure(actor_id, &FileManager::on_download_error, query_id, std::move(error));
-                           }));
-    node->need_reload_photo_ = false;
-    return;
-  }
-
-  // If file reference is needed
-  if (!file_view.has_active_download_remote_location()) {
-    VLOG(file_references) << "Do not have valid file_reference for file " << file_id;
-    FileDownloadManager::QueryId query_id =
-        download_queries_.create(DownloadQuery{file_id, DownloadQuery::Type::DownloadWaitFileReference});
-    node->download_id_ = query_id;
-    if (node->download_was_update_file_reference_) {
-      return on_download_error(query_id, Status::Error("Can't download file: have no valid file reference"));
-    }
-    node->download_was_update_file_reference_ = true;
-
-    context_->repair_file_reference(
-        file_id, PromiseCreator::lambda([actor_id = actor_id(this), query_id, file_id](Result<Unit> res) {
-          Status error;
-          if (res.is_ok()) {
-            error = Status::Error("FILE_DOWNLOAD_RESTART_WITH_FILE_REFERENCE");
-          } else {
-            error = res.move_as_error();
-          }
-          VLOG(file_references) << "Receive result from FileSourceManager for file " << file_id << ": " << error;
-          send_closure(actor_id, &FileManager::on_download_error, query_id, std::move(error));
-        }));
-    return;
-  }
-
-  FileDownloadManager::QueryId query_id =
-      download_queries_.create(DownloadQuery{file_id, DownloadQuery::Type::Download});
-  node->download_id_ = query_id;
-  node->is_download_started_ = false;
-  LOG(INFO) << "Run download of file " << file_id << " of size " << node->size_ << " from "
-            << node->remote_.full.value() << " with suggested name " << node->suggested_path() << " and encryption key "
-            << node->encryption_key_;
-  auto download_offset = node->download_offset_;
-  auto download_limit = node->get_download_limit();
-  if (file_view.is_encrypted_any()) {
-    CHECK(download_offset <= MAX_FILE_SIZE);
-    CHECK(download_limit <= MAX_FILE_SIZE);
-    download_limit += download_offset;
-    download_offset = 0;
-  }
-  send_closure(file_download_manager_, &FileDownloadManager::download, query_id, node->remote_.full.value(),
-               node->local_, node->size_, node->suggested_path(), node->encryption_key_, node->can_search_locally_,
-               download_offset, download_limit, priority);
-}
-
-class FileManager::ForceUploadActor final : public Actor {
- public:
-  ForceUploadActor(FileManager *file_manager, FileUploadId file_upload_id,
-                   std::shared_ptr<FileManager::UploadCallback> callback, int32 new_priority, uint64 upload_order,
-                   bool prefer_small, ActorShared<> parent)
-      : file_manager_(file_manager)
-      , file_upload_id_(file_upload_id)
-      , callback_(std::move(callback))
-      , new_priority_(new_priority)
-      , upload_order_(upload_order)
-      , prefer_small_(prefer_small)
-      , parent_(std::move(parent)) {
-  }
-
- private:
-  FileManager *file_manager_;
-  FileUploadId file_upload_id_;
-  std::shared_ptr<FileManager::UploadCallback> callback_;
-  int32 new_priority_;
-  uint64 upload_order_;
-  bool prefer_small_;
-  ActorShared<> parent_;
-  bool is_active_{false};
-  int attempt_{0};
-
-  class UploadCallback final : public FileManager::UploadCallback {
-   public:
-    explicit UploadCallback(ActorId<ForceUploadActor> callback) : callback_(std::move(callback)) {
-    }
-
-    void on_upload_ok(FileUploadId file_upload_id, telegram_api::object_ptr<telegram_api::InputFile> input_file) final {
-      send_closure(std::move(callback_), &ForceUploadActor::on_upload_ok, std::move(input_file));
-    }
-
-    void on_upload_encrypted_ok(FileUploadId file_upload_id,
-                                telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file) final {
-      send_closure(std::move(callback_), &ForceUploadActor::on_upload_encrypted_ok, std::move(input_file));
-    }
-
-    void on_upload_secure_ok(FileUploadId file_upload_id,
-                             telegram_api::object_ptr<telegram_api::InputSecureFile> input_file) final {
-      send_closure(std::move(callback_), &ForceUploadActor::on_upload_secure_ok, std::move(input_file));
-    }
-
-    void on_upload_error(FileUploadId file_upload_id, Status error) final {
-      send_closure(std::move(callback_), &ForceUploadActor::on_upload_error, std::move(error));
-    }
-
-    ~UploadCallback() final {
-      if (callback_.empty()) {
-        return;
-      }
-      send_closure(std::move(callback_), &ForceUploadActor::on_upload_error, Status::Error(200, "Canceled"));
-    }
-
-   private:
-    ActorId<ForceUploadActor> callback_;
-  };
-
-  void on_upload_ok(telegram_api::object_ptr<telegram_api::InputFile> input_file) {
-    is_active_ = false;
-    if (input_file || is_ready()) {
-      callback_->on_upload_ok(file_upload_id_, std::move(input_file));
-      on_ok();
-    } else {
-      loop();
-    }
-  }
-
-  void on_upload_encrypted_ok(telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file) {
-    is_active_ = false;
-    if (input_file || is_ready()) {
-      callback_->on_upload_encrypted_ok(file_upload_id_, std::move(input_file));
-      on_ok();
-    } else {
-      loop();
-    }
-  }
-
-  void on_upload_secure_ok(telegram_api::object_ptr<telegram_api::InputSecureFile> input_file) {
-    is_active_ = false;
-    if (input_file || is_ready()) {
-      callback_->on_upload_secure_ok(file_upload_id_, std::move(input_file));
-      on_ok();
-    } else {
-      loop();
-    }
-  }
-
-  bool is_ready() const {
-    return !G()->close_flag() &&
-           file_manager_->get_file_view(file_upload_id_.get_file_id()).has_active_upload_remote_location();
-  }
-
-  void on_ok() {
-    callback_.reset();
-    send_closure(G()->file_manager(), &FileManager::on_force_reupload_success, file_upload_id_.get_file_id());
-    stop();
-  }
-
-  void on_upload_error(Status error) {
-    if (attempt_ == 2) {
-      callback_->on_upload_error(file_upload_id_, std::move(error));
-      callback_.reset();
-      stop();
-    } else {
-      is_active_ = false;
-      loop();
-    }
-  }
-
-  auto create_callback() {
-    return std::make_shared<UploadCallback>(actor_id(this));
-  }
-
-  void loop() final {
-    if (is_active_) {
-      return;
-    }
-    if (G()->close_flag()) {
-      return stop();
-    }
-
-    is_active_ = true;
-    attempt_++;
-    send_closure(G()->file_manager(), &FileManager::resume_upload, file_upload_id_, vector<int>(), create_callback(),
-                 new_priority_, upload_order_, attempt_ == 2, prefer_small_);
-  }
-
-  void tear_down() final {
-    if (callback_) {
-      callback_->on_upload_error(file_upload_id_, Status::Error(200, "Canceled"));
-    }
-  }
-};
-
-void FileManager::on_force_reupload_success(FileId file_id) {
-  auto node = get_sync_file_node(file_id);
-  CHECK(node);
-  if (!node->remote_.is_full_alive) {  // do not update for multiple simultaneous uploads
-    node->last_successful_force_reupload_time_ = Time::now();
-  }
-}
-
-void FileManager::resume_upload(FileUploadId file_upload_id, vector<int> bad_parts,
-                                std::shared_ptr<UploadCallback> callback, int32 new_priority, uint64 upload_order,
-                                bool force, bool prefer_small) {
-  if (G()->close_flag()) {
-    return;
-  }
-  CHECK(callback != nullptr);
-  CHECK(new_priority > 0);
-
-  auto node = get_sync_file_node(file_upload_id.get_file_id());
-  if (!node) {
-    LOG(INFO) << "Uploaded " << file_upload_id << " not found";
-    callback->on_upload_error(file_upload_id, Status::Error(400, "File not found"));
-    return;
-  }
-
-  if (bad_parts.size() == 1 && bad_parts[0] == -1) {
-    if (node->last_successful_force_reupload_time_ >= Time::now() - 60) {
-      LOG(INFO) << "Recently reuploaded " << file_upload_id << ", do not try again";
-      callback->on_upload_error(file_upload_id, Status::Error(400, "Failed to reupload file"));
-      return;
-    }
-
-    create_actor<ForceUploadActor>("ForceUploadActor", this, file_upload_id, std::move(callback), new_priority,
-                                   upload_order, prefer_small, context_->create_reference())
-        .release();
-    return;
-  }
-  LOG(INFO) << "Resume upload of " << file_upload_id << " with priority " << new_priority << " and force = " << force;
-
-  if (force) {
-    node->remote_.is_full_alive = false;
-  }
-  if (prefer_small) {
-    node->upload_prefer_small_ = true;
-  }
-  if (node->upload_pause_ == file_upload_id) {
-    node->set_upload_pause(FileUploadId());
-  }
-  SCOPE_EXIT {
-    try_flush_node(node, "resume_upload");
-  };
-  FileView file_view(node);
-  if (file_view.has_active_upload_remote_location() && can_reuse_remote_file(file_view.get_type())) {
-    LOG(INFO) << "Upload of " << file_upload_id << " has already been completed";
-    callback->on_upload_ok(file_upload_id, nullptr);
-    return;
-  }
-
-  if (file_view.has_full_local_location()) {
-    auto status = check_local_location(node, false);
-    if (status.is_error()) {
-      LOG(INFO) << "Full local location of " << file_upload_id << " for upload is invalid: " << status;
-    }
-  }
-
-  if (!file_view.has_full_local_location() && !file_view.has_generate_location() &&
-      !file_view.has_alive_remote_location()) {
-    LOG(INFO) << "Can't upload " << file_upload_id;
-    callback->on_upload_error(
-        file_upload_id, Status::Error(400, "Need full local (or generate, or inactive remote) location for upload"));
-    return;
-  }
-  if (file_view.get_type() == FileType::Thumbnail &&
-      (!file_view.has_full_local_location() && file_view.can_download_from_server())) {
-    // TODO
-    callback->on_upload_error(file_upload_id, Status::Error(400, "Failed to upload thumbnail without local location"));
-    return;
-  }
-
-  LOG(INFO) << "Change upload priority of " << file_upload_id << " to " << new_priority << " with callback "
-            << callback.get();
-  auto &requests = file_upload_requests_[file_upload_id.get_file_id()];
-  auto internal_upload_id = file_upload_id.get_internal_upload_id();
-  if (internal_upload_id != 0) {
-    auto &upload_info = requests.internal_uploads_[internal_upload_id];
-    CHECK(upload_info.upload_callback_ == nullptr);
-    upload_info.upload_order_ = upload_order;
-    upload_info.upload_priority_ = narrow_cast<int8>(new_priority);
-    upload_info.upload_callback_ = std::move(callback);
-  } else {
-    requests.user_upload_priority_ = narrow_cast<int8>(new_priority);
-  }
-
-  run_generate(node);
-  run_upload(node, std::move(bad_parts));
-}
-
-bool FileManager::delete_partial_remote_location(FileUploadId file_upload_id) {
-  auto node = get_sync_file_node(file_upload_id.get_file_id());
-  if (!node) {
-    LOG(INFO) << "Wrong " << file_upload_id;
-    return false;
-  }
-  if (node->upload_pause_ == file_upload_id) {
-    node->set_upload_pause(FileUploadId());
-  }
-  SCOPE_EXIT {
-    try_flush_node(node, "delete_partial_remote_location");
-  };
-  if (node->remote_.is_full_alive) {
-    LOG(INFO) << "Upload isn't needed for " << file_upload_id;
-    return true;
-  }
-
-  node->delete_partial_remote_location();
-
-  auto callback = extract_upload_callback(file_upload_id);
-  if (callback != nullptr) {
-    callback->on_upload_error(file_upload_id, Status::Error(200, "Canceled"));
-  }
-
-  if (node->local_.type() != LocalFileLocation::Type::Full) {
-    // TODO local location isn't actually required for upload
-    LOG(INFO) << "Need full local location to upload " << file_upload_id;
-    return false;
-  }
-
-  auto status = check_local_location(node, false);
-  if (status.is_error()) {
-    LOG(INFO) << "Need full local location to upload " << file_upload_id << ": " << status;
-    return false;
-  }
-
-  run_upload(node, vector<int>());
-  return true;
-}
-
-void FileManager::delete_partial_remote_location_if_needed(FileUploadId file_upload_id, const Status &error) {
-  if (error.code() != 429 && error.code() < 500 && !G()->close_flag()) {
-    delete_partial_remote_location(file_upload_id);
-  } else {
-    cancel_upload(file_upload_id);
-  }
-}
-
-void FileManager::delete_file_reference(FileId file_id, Slice file_reference) {
-  VLOG(file_references) << "Delete file reference of file " << file_id << " "
-                        << tag("reference_base64", base64_encode(file_reference));
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    LOG(ERROR) << "Wrong file identifier " << file_id;
-    return;
-  }
-  node->delete_file_reference(file_reference);
-  auto remote = get_remote(file_id.get_remote());
-  if (remote != nullptr) {
-    VLOG(file_references) << "Do delete file reference of remote file " << file_id;
-    if (remote->delete_file_reference(file_reference)) {
-      VLOG(file_references) << "Successfully deleted file reference of remote file " << file_id;
-      node->upload_was_update_file_reference_ = false;
-      node->download_was_update_file_reference_ = false;
-      node->on_pmc_changed();
-    }
-  }
-  try_flush_node_pmc(node, "delete_file_reference");
-}
-
-void FileManager::external_file_generate_write_part(int64 generation_id, int64 offset, string data, Promise<> promise) {
-  send_closure(file_generate_manager_, &FileGenerateManager::external_file_generate_write_part,
-               static_cast<FileGenerateManager::QueryId>(generation_id), offset, std::move(data), std::move(promise));
-}
-
-void FileManager::external_file_generate_progress(int64 generation_id, int64 expected_size, int64 local_prefix_size,
-                                                  Promise<> promise) {
-  send_closure(file_generate_manager_, &FileGenerateManager::external_file_generate_progress,
-               static_cast<FileGenerateManager::QueryId>(generation_id), expected_size, local_prefix_size,
-               std::move(promise));
-}
-
-void FileManager::external_file_generate_finish(int64 generation_id, Status status, Promise<> promise) {
-  send_closure(file_generate_manager_, &FileGenerateManager::external_file_generate_finish,
-               static_cast<FileGenerateManager::QueryId>(generation_id), std::move(status), std::move(promise));
-}
-
-void FileManager::run_generate(FileNodePtr node) {
-  FileView file_view(node);
-  if (!file_view.can_generate()) {
-    // LOG(INFO) << "Skip run_generate, because file " << node->main_file_id_ << " can't be generated";
-    return;
-  }
-  if (node->need_load_from_pmc_) {
-    LOG(INFO) << "Skip run_generate, because file " << node->main_file_id_ << " needs to be loaded from PMC";
-    return;
-  }
-  if (file_view.has_full_local_location()) {
-    LOG(INFO) << "Skip run_generate, because file " << node->main_file_id_ << " has local location";
-    return;
-  }
-  if (file_view.can_download_from_server()) {
-    LOG(INFO) << "Skip run_generate, because file " << node->main_file_id_ << " can be downloaded from server";
-    return;
-  }
-
-  int8 download_priority = 0;
-  int8 upload_priority = 0;
-  FileId file_id = node->main_file_id_;
-  for (auto id : node->file_ids_) {
-    {
-      auto it = file_download_requests_.find(id);
-      if (it != file_download_requests_.end()) {
-        if (it->second.user_download_priority_ > download_priority) {
-          download_priority = it->second.user_download_priority_;
-        }
-        for (auto &download_info : it->second.internal_downloads_) {
-          if (download_info.second.download_priority_ > download_priority) {
-            download_priority = download_info.second.download_priority_;
-          }
-        }
-        if (download_priority > upload_priority) {
-          file_id = id;
-        }
-      }
-    }
-    {
-      auto it = file_upload_requests_.find(id);
-      if (it != file_upload_requests_.end()) {
-        if (it->second.user_upload_priority_ > upload_priority) {
-          upload_priority = it->second.user_upload_priority_;
-        }
-        for (auto &upload_info : it->second.internal_uploads_) {
-          if (upload_info.second.upload_priority_ > upload_priority) {
-            upload_priority = upload_info.second.upload_priority_;
-          }
-        }
-        if (upload_priority > download_priority) {
-          file_id = id;
-        }
-      }
-    }
-  }
-
-  auto old_priority = node->generate_priority_;
-  node->set_generate_priority(download_priority, upload_priority);
-
-  if (node->generate_priority_ == 0) {
-    if (old_priority != 0) {
-      LOG(INFO) << "Cancel file " << file_id << " generation";
-      do_cancel_generate(node);
-    }
-    return;
-  }
-
-  if (old_priority != 0) {
-    LOG(INFO) << "TODO: change file " << file_id << " generation priority";
-    return;
-  }
-
-  FileGenerateManager::QueryId query_id = generate_queries_.create(GenerateQuery{file_id});
-  node->generate_id_ = query_id;
-  send_closure(file_generate_manager_, &FileGenerateManager::generate_file, query_id, *node->generate_, node->local_,
-               node->suggested_path(), [file_manager = this, query_id] {
-                 class Callback final : public FileGenerateCallback {
-                   ActorId<FileManager> actor_;
-                   uint64 query_id_;
-
-                  public:
-                   Callback(ActorId<FileManager> actor, FileGenerateManager::QueryId query_id)
-                       : actor_(std::move(actor)), query_id_(query_id) {
-                   }
-                   void on_partial_generate(PartialLocalFileLocation partial_local, int64 expected_size) final {
-                     send_closure(actor_, &FileManager::on_partial_generate, query_id_, std::move(partial_local),
-                                  expected_size);
-                   }
-                   void on_ok(FullLocalFileLocation local) final {
-                     send_closure(actor_, &FileManager::on_generate_ok, query_id_, std::move(local));
-                   }
-                   void on_error(Status error) final {
-                     send_closure(actor_, &FileManager::on_generate_error, query_id_, std::move(error));
-                   }
-                 };
-                 return make_unique<Callback>(file_manager->actor_id(file_manager), query_id);
-               }());
-
-  LOG(INFO) << "File " << file_id << " generate request has sent to FileGenerateManager";
-}
-
-void FileManager::run_upload(FileNodePtr node, vector<int> bad_parts) {
-  int8 priority = 0;
-  FileId file_id = node->main_file_id_;
-  for (auto id : node->file_ids_) {
-    auto it = file_upload_requests_.find(id);
-    if (it != file_upload_requests_.end()) {
-      if (it->second.user_upload_priority_ > priority) {
-        priority = it->second.user_upload_priority_;
-        file_id = id;
-      }
-      for (auto &upload_info : it->second.internal_uploads_) {
-        if (upload_info.second.upload_priority_ > priority) {
-          priority = upload_info.second.upload_priority_;
-          file_id = id;
-        }
-      }
-    }
-  }
-
-  auto old_priority = node->upload_priority_;
-
-  if (priority == 0) {
-    node->set_upload_priority(0);
-    if (old_priority != 0) {
-      LOG(INFO) << "Cancel file " << file_id << " uploading";
-      do_cancel_upload(node);
-    }
-    return;
-  }
-
-  if (node->need_load_from_pmc_) {
-    LOG(INFO) << "File " << node->main_file_id_ << " needs to be loaded from database before upload";
-    return;
-  }
-  if (node->upload_pause_.is_valid()) {
-    LOG(INFO) << "File " << node->main_file_id_ << " upload is paused: " << node->upload_pause_;
-    return;
-  }
-
-  FileView file_view(node);
-  if (!file_view.has_full_local_location() && !file_view.has_full_remote_location()) {
-    if (node->get_by_hash_ || node->generate_id_ == 0 || !node->generate_was_update_) {
-      LOG(INFO) << "Have no local location for file: get_by_hash = " << node->get_by_hash_
-                << ", generate_id = " << node->generate_id_ << ", generate_was_update = " << node->generate_was_update_;
-      return;
-    }
-    auto generate_location = file_view.get_generate_location();
-    if (generate_location != nullptr && generate_location->file_type_ == FileType::SecureEncrypted) {
-      // Can't upload secure file before its size is known
-      LOG(INFO) << "Can't upload secure file " << node->main_file_id_ << " before it's size is known";
-      return;
-    }
-  }
-
-  node->set_upload_priority(priority);
-
-  auto generate_location = file_view.get_generate_location();
-  auto full_local_location = file_view.get_full_local_location();
-
-  // create encryption key if necessary
-  if (((generate_location != nullptr && generate_location->file_type_ == FileType::Encrypted) ||
-       (full_local_location != nullptr && full_local_location->file_type_ == FileType::Encrypted)) &&
-      file_view.encryption_key().empty()) {
-    CHECK(!node->file_ids_.empty());
-    bool success = set_encryption_key(node->file_ids_[0], FileEncryptionKey::create());
-    LOG_IF(FATAL, !success) << "Failed to set encryption key for file " << file_id;
-  }
-
-  // create encryption key if necessary
-  if (full_local_location != nullptr && full_local_location->file_type_ == FileType::SecureEncrypted &&
-      file_view.encryption_key().empty()) {
-    CHECK(!node->file_ids_.empty());
-    bool success = set_encryption_key(node->file_ids_[0], FileEncryptionKey::create_secure_key());
-    LOG_IF(FATAL, !success) << "Failed to set encryption key for file " << file_id;
-  }
-
-  if (old_priority != 0) {
-    LOG(INFO) << "File " << file_id << " is already uploading";
-    CHECK(node->upload_id_ != 0);
-    send_closure(file_upload_manager_, &FileUploadManager::update_priority, node->upload_id_,
-                 narrow_cast<int8>(-priority));
-    return;
-  }
-
-  CHECK(node->upload_id_ == 0);
-  if (file_view.has_alive_remote_location() && !file_view.has_active_upload_remote_location() &&
-      can_reuse_remote_file(file_view.get_type()) && !node->upload_was_update_file_reference_) {
-    FileUploadManager::QueryId query_id =
-        upload_queries_.create(UploadQuery{file_id, UploadQuery::Type::UploadWaitFileReference});
-    node->upload_id_ = query_id;
-    node->upload_was_update_file_reference_ = true;
-
-    context_->repair_file_reference(node->main_file_id_,
-                                    PromiseCreator::lambda([actor_id = actor_id(this), query_id](Result<Unit> res) {
-                                      send_closure(actor_id, &FileManager::on_upload_error, query_id,
-                                                   Status::Error("FILE_UPLOAD_RESTART_WITH_FILE_REFERENCE"));
-                                    }));
-    return;
-  }
-
-  if (!node->remote_.partial && node->get_by_hash_) {
-    LOG(INFO) << "Get file " << node->main_file_id_ << " by hash";
-    FileUploadManager::QueryId query_id = upload_queries_.create(UploadQuery{file_id, UploadQuery::Type::UploadByHash});
-    node->upload_id_ = query_id;
-
-    send_closure(file_upload_manager_, &FileUploadManager::upload_by_hash, query_id, node->local_.full(), node->size_,
-                 narrow_cast<int8>(-priority));
-    return;
-  }
-
-  auto new_priority = narrow_cast<int8>(bad_parts.empty() ? -priority : priority);
-  td::remove_if(bad_parts, [](auto part_id) { return part_id < 0; });
-
-  auto expected_size = file_view.expected_size(true);
-  if (node->upload_prefer_small_ && (10 << 20) < expected_size && expected_size < (30 << 20)) {
-    expected_size = 10 << 20;
-  }
-
-  FileUploadManager::QueryId query_id = upload_queries_.create(UploadQuery{file_id, UploadQuery::Type::Upload});
-  node->upload_id_ = query_id;
-  send_closure(file_upload_manager_, &FileUploadManager::upload, query_id, node->local_,
-               node->remote_.partial_or_empty(), expected_size, node->encryption_key_, new_priority,
-               std::move(bad_parts));
-
-  LOG(INFO) << "File " << file_id << " upload request has sent to FileUploadManager";
-}
-
-void FileManager::upload(FileUploadId file_upload_id, std::shared_ptr<UploadCallback> callback, int32 new_priority,
-                         uint64 upload_order) {
-  return resume_upload(file_upload_id, vector<int>(), std::move(callback), new_priority, upload_order);
-}
-
-std::shared_ptr<FileManager::UploadCallback> FileManager::extract_upload_callback(FileUploadId file_upload_id) {
-  auto it = file_upload_requests_.find(file_upload_id.get_file_id());
-  if (it == file_upload_requests_.end()) {
-    return nullptr;
-  }
-  std::shared_ptr<UploadCallback> callback;
-  auto internal_upload_id = file_upload_id.get_internal_upload_id();
-  if (internal_upload_id != 0) {
-    auto upload_info_it = it->second.internal_uploads_.find(internal_upload_id);
-    if (upload_info_it == it->second.internal_uploads_.end()) {
-      return nullptr;
-    }
-    callback = std::move(upload_info_it->second.upload_callback_);
-    it->second.internal_uploads_.erase(upload_info_it);
-  } else {
-    if (it->second.user_upload_priority_ == 0) {
-      return nullptr;
-    }
-    callback = std::make_shared<PreliminaryUploadFileCallback>();
-    it->second.user_upload_priority_ = 0;
-  }
-  if (it->second.user_upload_priority_ == 0 && it->second.internal_uploads_.empty()) {
-    file_upload_requests_.erase(it);
-  }
-  return callback;
-}
-
-void FileManager::finish_uploads(FileId file_id, const Status &status) {
-  auto it = file_upload_requests_.find(file_id);
-  if (it == file_upload_requests_.end()) {
-    return;
-  }
-  vector<std::pair<int64, std::shared_ptr<UploadCallback>>> callbacks;
-  for (auto &upload_info : it->second.internal_uploads_) {
-    callbacks.emplace_back(upload_info.first, std::move(upload_info.second.upload_callback_));
-  }
-  if (it->second.user_upload_priority_ != 0) {
-    callbacks.emplace_back(0, std::make_shared<PreliminaryUploadFileCallback>());
-  }
-  file_upload_requests_.erase(it);
-
-  for (auto &callback : callbacks) {
-    CHECK(callback.second != nullptr);
-    if (status.is_ok()) {
-      callback.second->on_upload_ok({file_id, callback.first}, nullptr);
-    } else {
-      callback.second->on_upload_error({file_id, callback.first}, status.clone());
-    }
-  }
-}
-
-void FileManager::cancel_upload(FileUploadId file_upload_id) {
-  if (G()->close_flag()) {
-    return;
-  }
-
-  auto node = get_sync_file_node(file_upload_id.get_file_id());
-  if (!node) {
-    return;
-  }
-
-  LOG(INFO) << "Cancel upload of " << file_upload_id;
-
-  if (node->upload_pause_ == file_upload_id) {
-    node->set_upload_pause(FileUploadId());
-  }
-
-  auto callback = extract_upload_callback(file_upload_id);
-  if (callback != nullptr) {
-    callback->on_upload_error(file_upload_id, Status::Error(200, "Canceled"));
-  }
-
-  run_generate(node);
-  run_upload(node, {});
-  try_flush_node(node, "cancel_upload");
-}
-
-static bool is_background_type(FileType type) {
-  return type == FileType::Wallpaper || type == FileType::Background;
-}
-
-Result<FileId> FileManager::from_persistent_id(CSlice persistent_id, FileType file_type) {
-  if (persistent_id.find('.') != string::npos) {
-    auto r_http_url = parse_url(persistent_id);
-    if (r_http_url.is_error()) {
-      return Status::Error(400, PSLICE() << "Invalid file HTTP URL specified: " << r_http_url.error().message());
-    }
-    auto url = r_http_url.ok().get_url();
-    if (!clean_input_string(url)) {
-      return Status::Error(400, "URL must be in UTF-8");
-    }
-    return register_url(std::move(url), file_type, DialogId());
-  }
-
-  auto r_binary = base64url_decode(persistent_id);
-  if (r_binary.is_error()) {
-    return Status::Error(400, PSLICE() << "Wrong remote file identifier specified: " << r_binary.error().message());
-  }
-  auto binary = r_binary.move_as_ok();
-  if (binary.empty()) {
-    return Status::Error(400, "Remote file identifier must be non-empty");
-  }
-  if (binary.back() == FileNode::PERSISTENT_ID_VERSION_OLD) {
-    return from_persistent_id_v2(binary, file_type);
-  }
-  if (binary.back() == FileNode::PERSISTENT_ID_VERSION) {
-    return from_persistent_id_v3(binary, file_type);
-  }
-  if (binary.back() == FileNode::PERSISTENT_ID_VERSION_GENERATED) {
-    return from_persistent_id_generated(binary, file_type);
-  }
-  return Status::Error(400, "Wrong remote file identifier specified: can't unserialize it. Wrong last symbol");
-}
-
-Result<FileId> FileManager::from_persistent_id_generated(Slice binary, FileType file_type) {
-  binary.remove_suffix(1);
-  auto decoded_binary = zero_decode(binary);
-  FullGenerateFileLocation generate_location;
-  auto status = unserialize(generate_location, decoded_binary);
-  if (status.is_error()) {
-    return Status::Error(400, "Wrong remote file identifier specified: can't unserialize it");
-  }
-  auto real_file_type = generate_location.file_type_;
-  if ((real_file_type != file_type && file_type != FileType::Temp) ||
-      (real_file_type != FileType::Thumbnail && real_file_type != FileType::EncryptedThumbnail)) {
-    return Status::Error(400, PSLICE() << "Can't use file of type " << real_file_type << " as " << file_type);
-  }
-  if (!is_remotely_generated_file(generate_location.conversion_)) {
-    return Status::Error(400, "Unexpected conversion type");
-  }
-  return do_register_generate(make_unique<FullGenerateFileLocation>(std::move(generate_location)), DialogId(), 0,
-                              string());
-}
-
-Result<FileId> FileManager::from_persistent_id_v23(Slice binary, FileType file_type, int32 version) {
-  if (version < 0 || version >= static_cast<int32>(Version::Next)) {
-    return Status::Error(400, "Invalid remote file identifier");
-  }
-  auto decoded_binary = zero_decode(binary);
-  FullRemoteFileLocation remote_location;
-  log_event::WithVersion<TlParser> parser(decoded_binary);
-  parser.set_version(version);
-  parse(remote_location, parser);
-  parser.fetch_end();
-  auto status = parser.get_status();
-  if (status.is_error()) {
-    return Status::Error(400, "Wrong remote file identifier specified: can't unserialize it");
-  }
-  auto &real_file_type = remote_location.file_type_;
-  if (is_document_file_type(real_file_type) && is_document_file_type(file_type)) {
-    real_file_type = file_type;
-  } else if (is_background_type(real_file_type) && is_background_type(file_type)) {
-    // type of file matches, but real type is in the stored remote location
-  } else if (real_file_type != file_type && file_type != FileType::Temp) {
-    return Status::Error(400, PSLICE() << "Can't use file of type " << real_file_type << " as " << file_type);
-  }
-  return register_remote(std::move(remote_location), FileLocationSource::FromUser, DialogId(), 0, 0, string());
-}
-
-Result<FileId> FileManager::from_persistent_id_v2(Slice binary, FileType file_type) {
-  binary.remove_suffix(1);
-  return from_persistent_id_v23(binary, file_type, 0);
-}
-
-Result<FileId> FileManager::from_persistent_id_v3(Slice binary, FileType file_type) {
-  binary.remove_suffix(1);
-  if (binary.empty()) {
-    return Status::Error(400, "Invalid remote file identifier");
-  }
-  int32 version = static_cast<uint8>(binary.back());
-  binary.remove_suffix(1);
-  return from_persistent_id_v23(binary, file_type, version);
-}
-
-FileView FileManager::get_file_view(FileId file_id) const {
-  auto file_node = get_file_node(file_id);
-  if (!file_node) {
-    return FileView();
-  }
-  return FileView(file_node);
-}
-
-FileView FileManager::get_sync_file_view(FileId file_id) {
-  auto file_node = get_sync_file_node(file_id);
-  if (!file_node) {
-    return FileView();
-  }
-  return FileView(file_node);
-}
-
-td_api::object_ptr<td_api::file> FileManager::get_file_object(FileId file_id) {
-  auto file_node_ptr = get_sync_file_node(file_id);
-  if (!file_node_ptr) {
-    return td_api::make_object<td_api::file>(0, 0, 0, td_api::make_object<td_api::localFile>(),
-                                             td_api::make_object<td_api::remoteFile>());
-  }
-
-  const FileNode *file_node = file_node_ptr.get();
-  string persistent_file_id = file_node->get_persistent_file_id();
-  string unique_file_id = file_node->get_unique_file_id();
-  bool is_downloading_completed = file_node->local_.type() == LocalFileLocation::Type::Full;
-  bool is_uploading_completed = !persistent_file_id.empty();
-  auto size = file_node->size_;
-  auto download_offset = file_node->download_offset_;
-  auto expected_size = file_node->expected_size();
-  auto local_prefix_size = file_node->local_prefix_size();
-  auto local_total_size = file_node->local_total_size();
-  auto remote_size = file_node->remote_size();
-  string path = file_node->path();
-  bool can_be_deleted = file_node->can_delete();
-
-  auto file_view = FileView(file_node_ptr);
-  bool can_be_downloaded = file_view.can_download_from_server() || file_view.can_generate();
-
-  return td_api::make_object<td_api::file>(
-      file_id.get(), size, expected_size,
-      td_api::make_object<td_api::localFile>(std::move(path), can_be_downloaded, can_be_deleted,
-                                             file_node->is_downloading(), is_downloading_completed, download_offset,
-                                             local_prefix_size, local_total_size),
-      td_api::make_object<td_api::remoteFile>(std::move(persistent_file_id), std::move(unique_file_id),
-                                              file_node->is_uploading(), is_uploading_completed, remote_size));
-}
-
-vector<int32> FileManager::get_file_ids_object(const vector<FileId> &file_ids) {
-  return transform(file_ids, [](FileId file_id) { return file_id.get(); });
-}
-
-Result<FileId> FileManager::check_input_file_id(FileType type, Result<FileId> result, bool is_encrypted,
-                                                bool allow_zero, bool is_secure) {
-  TRY_RESULT(file_id, std::move(result));
-  if (allow_zero && !file_id.is_valid()) {
-    return FileId();
-  }
-
-  auto file_node = get_sync_file_node(file_id);  // we need full data about sent files
-  if (!file_node) {
-    return Status::Error(400, "File not found");
-  }
-  auto file_view = FileView(file_node);
-  FileType real_type = file_view.get_type();
-  LOG(INFO) << "Checking file " << file_id << " of type " << type << "/" << real_type;
-  if (!is_encrypted && !is_secure) {
-    if (real_type != type && !(real_type == FileType::Temp && file_view.has_url()) &&
-        !(is_document_file_type(real_type) && is_document_file_type(type)) &&
-        !(is_background_type(real_type) && is_background_type(type)) &&
-        !(file_view.is_encrypted() && type == FileType::Ringtone) &&
-        !(real_type == FileType::PhotoStory && type == FileType::Photo) &&
-        !(real_type == FileType::Photo && type == FileType::PhotoStory)) {
-      // TODO: send encrypted file to unencrypted chat
-      return Status::Error(400, PSLICE() << "Can't use file of type " << real_type << " as " << type);
-    }
-  }
-
-  const auto *full_remote_location = file_view.get_full_remote_location();
-  if (full_remote_location == nullptr) {
-    return file_node->main_file_id_;
-  }
-
-  int32 remote_id = file_id.get_remote();
-  if (remote_id == 0 && context_->keep_exact_remote_location()) {
-    RemoteInfo info{*full_remote_location, FileLocationSource::FromUser, file_id};
-    remote_id = remote_location_info_.add(info);
-    if (remote_location_info_.get(remote_id).file_id_ == file_id) {
-      get_file_id_info(file_id)->pin_flag_ = true;
-    }
-  }
-  return FileId(file_node->main_file_id_.get(), remote_id);
-}
-
-Result<FileId> FileManager::get_input_thumbnail_file_id(const tl_object_ptr<td_api::InputFile> &thumbnail_input_file,
-                                                        DialogId owner_dialog_id, bool is_encrypted) {
-  if (thumbnail_input_file == nullptr) {
-    return Status::Error(400, "inputThumbnail not specified");
-  }
-
-  switch (thumbnail_input_file->get_id()) {
-    case td_api::inputFileLocal::ID: {
-      const string &path = static_cast<const td_api::inputFileLocal *>(thumbnail_input_file.get())->path_;
-      return register_local(
-          FullLocalFileLocation(is_encrypted ? FileType::EncryptedThumbnail : FileType::Thumbnail, path, 0),
-          owner_dialog_id, 0, false);
-    }
-    case td_api::inputFileId::ID:
-      return Status::Error(400, "InputFileId is not supported for thumbnails");
-    case td_api::inputFileRemote::ID:
-      return Status::Error(400, "InputFileRemote is not supported for thumbnails");
-    case td_api::inputFileGenerated::ID: {
-      auto *generated_thumbnail = static_cast<const td_api::inputFileGenerated *>(thumbnail_input_file.get());
-      return register_generate(is_encrypted ? FileType::EncryptedThumbnail : FileType::Thumbnail,
-                               generated_thumbnail->original_path_, generated_thumbnail->conversion_, owner_dialog_id,
-                               generated_thumbnail->expected_size_);
-    }
-    default:
-      UNREACHABLE();
-      return Status::Error(500, "Unreachable");
-  }
-}
-
-Result<FileId> FileManager::get_input_file_id(FileType type, const tl_object_ptr<td_api::InputFile> &file,
-                                              DialogId owner_dialog_id, bool allow_zero, bool is_encrypted,
-                                              bool get_by_hash, bool is_secure, bool force_reuse) {
-  if (file == nullptr) {
-    if (allow_zero) {
-      return FileId();
-    }
-    return Status::Error(400, "InputFile is not specified");
-  }
-
-  if (is_encrypted || is_secure) {
-    get_by_hash = false;
-  }
-
-  auto new_type = is_encrypted ? FileType::Encrypted : (is_secure ? FileType::SecureEncrypted : type);
-
-  auto r_file_id = [&]() -> Result<FileId> {
-    switch (file->get_id()) {
-      case td_api::inputFileLocal::ID: {
-        const string &path = static_cast<const td_api::inputFileLocal *>(file.get())->path_;
-        if (allow_zero && path.empty()) {
-          return FileId();
-        }
-        string hash;
-        if (G()->get_option_boolean("reuse_uploaded_photos_by_hash") &&
-            get_main_file_type(new_type) == FileType::Photo) {
-          auto r_stat = stat(path);
-          if (r_stat.is_ok() && r_stat.ok().size_ > 0 && r_stat.ok().size_ < 11000000) {
-            auto r_file_content = read_file_str(path, r_stat.ok().size_);
-            if (r_file_content.is_ok()) {
-              hash = sha256(r_file_content.ok());
-              auto file_id = file_hash_to_file_id_.get(hash);
-              LOG(INFO) << "Found file " << file_id << " by hash " << hex_encode(hash);
-              if (file_id.is_valid()) {
-                auto file_node = get_file_node(file_id);
-                auto file_view = FileView(file_node);
-                if (!file_view.empty()) {
-                  if (force_reuse) {
-                    return file_id;
-                  }
-                  const auto *full_remote_location = file_view.get_full_remote_location();
-                  if (full_remote_location != nullptr && !full_remote_location->is_web()) {
-                    return file_id;
-                  }
-                  if (file_view.is_uploading()) {
-                    CHECK(file_node);
-                    LOG(DEBUG) << "File " << file_id << " is still uploading: " << file_node->upload_priority_ << ' '
-                               << file_node->generate_upload_priority_ << ' ' << file_node->upload_pause_;
-                    hash.clear();
-                  }
-                } else {
-                  LOG(DEBUG) << "File " << file_id << " isn't found";
-                }
-              }
-            }
-          }
-        }
-        TRY_RESULT(file_id, register_local(FullLocalFileLocation(new_type, path, 0), owner_dialog_id, 0, get_by_hash));
-        if (!hash.empty()) {
-          file_hash_to_file_id_.set(hash, file_id);
-        }
-        return file_id;
-      }
-      case td_api::inputFileId::ID: {
-        FileId file_id(static_cast<const td_api::inputFileId *>(file.get())->id_, 0);
-        if (!file_id.is_valid()) {
-          return FileId();
-        }
-        return file_id;
-      }
-      case td_api::inputFileRemote::ID: {
-        const string &file_persistent_id = static_cast<const td_api::inputFileRemote *>(file.get())->id_;
-        if (allow_zero && file_persistent_id.empty()) {
-          return FileId();
-        }
-        return from_persistent_id(file_persistent_id, type);
-      }
-      case td_api::inputFileGenerated::ID: {
-        auto *generated_file = static_cast<const td_api::inputFileGenerated *>(file.get());
-        return register_generate(new_type, generated_file->original_path_, generated_file->conversion_, owner_dialog_id,
-                                 generated_file->expected_size_);
-      }
-      default:
-        UNREACHABLE();
-        return FileId();
-    }
-  }();
-
-  return check_input_file_id(type, std::move(r_file_id), is_encrypted, allow_zero, is_secure);
-}
-
-Result<FileId> FileManager::get_map_thumbnail_file_id(Location location, int32 zoom, int32 width, int32 height,
-                                                      int32 scale, DialogId owner_dialog_id) {
-  if (!location.is_valid_map_point()) {
-    return Status::Error(400, "Invalid location specified");
-  }
-  if (zoom < 13 || zoom > 20) {
-    return Status::Error(400, "Wrong zoom");
-  }
-  if (width < 16 || width > 1024) {
-    return Status::Error(400, "Wrong width");
-  }
-  if (height < 16 || height > 1024) {
-    return Status::Error(400, "Wrong height");
-  }
-  if (scale < 1 || scale > 3) {
-    return Status::Error(400, "Wrong scale");
-  }
-
-  const double PI = 3.14159265358979323846;
-  double sin_latitude = std::sin(location.get_latitude() * PI / 180);
-  int32 size = 256 * (1 << zoom);
-  auto x = static_cast<int32>((location.get_longitude() + 180) / 360 * size);
-  auto y = static_cast<int32>((0.5 - std::log((1 + sin_latitude) / (1 - sin_latitude)) / (4 * PI)) * size);
-  x = clamp(x, 0, size - 1);  // just in case
-  y = clamp(y, 0, size - 1);  // just in case
-
-  string conversion = PSTRING() << "#map#" << zoom << '#' << x << '#' << y << '#' << width << '#' << height << '#'
-                                << scale << '#';
-  return register_generate(
-      owner_dialog_id.get_type() == DialogType::SecretChat ? FileType::EncryptedThumbnail : FileType::Thumbnail,
-      string(), std::move(conversion), owner_dialog_id, 0);
-}
-
-Result<FileId> FileManager::get_audio_thumbnail_file_id(string title, string performer, bool is_small,
-                                                        DialogId owner_dialog_id) {
-  if (!clean_input_string(title)) {
-    return Status::Error(400, "Title must be encoded in UTF-8");
-  }
-  if (!clean_input_string(performer)) {
-    return Status::Error(400, "Performer must be encoded in UTF-8");
-  }
-  for (auto &c : title) {
-    if (c == '\n' || c == '#') {
-      c = ' ';
-    }
-  }
-  for (auto &c : performer) {
-    if (c == '\n' || c == '#') {
-      c = ' ';
-    }
-  }
-  title = trim(title);
-  performer = trim(performer);
-  if (title.empty() && performer.empty()) {
-    return Status::Error(400, "Title or performer must be non-empty");
-  }
-
-  string conversion = PSTRING() << "#audio_t#" << title << '#' << performer << '#' << (is_small ? '1' : '0') << '#';
-  return register_generate(
-      owner_dialog_id.get_type() == DialogType::SecretChat ? FileType::EncryptedThumbnail : FileType::Thumbnail,
-      string(), std::move(conversion), owner_dialog_id, 0);
-}
-
-FileType FileManager::guess_file_type(const tl_object_ptr<td_api::InputFile> &file) {
-  if (file == nullptr) {
-    return FileType::Temp;
-  }
-
-  switch (file->get_id()) {
-    case td_api::inputFileLocal::ID:
-      return guess_file_type_by_path(static_cast<const td_api::inputFileLocal *>(file.get())->path_);
-    case td_api::inputFileId::ID: {
-      FileId file_id(static_cast<const td_api::inputFileId *>(file.get())->id_, 0);
-      auto file_view = get_file_view(file_id);
-      if (file_view.empty()) {
-        return FileType::Temp;
-      }
-      return file_view.get_type();
-    }
-    case td_api::inputFileRemote::ID: {
-      const string &file_persistent_id = static_cast<const td_api::inputFileRemote *>(file.get())->id_;
-      Result<FileId> r_file_id = from_persistent_id(file_persistent_id, FileType::Temp);
-      if (r_file_id.is_error()) {
-        return FileType::Temp;
-      }
-      auto file_view = get_file_view(r_file_id.ok());
-      if (file_view.empty()) {
-        return FileType::Temp;
-      }
-      return file_view.get_type();
-    }
-    case td_api::inputFileGenerated::ID:
-      return guess_file_type_by_path(static_cast<const td_api::inputFileGenerated *>(file.get())->original_path_);
-    default:
-      UNREACHABLE();
-      return FileType::Temp;
-  }
-}
-
-vector<tl_object_ptr<telegram_api::InputDocument>> FileManager::get_input_documents(const vector<FileId> &file_ids) {
-  vector<tl_object_ptr<telegram_api::InputDocument>> result;
-  result.reserve(file_ids.size());
-  for (auto file_id : file_ids) {
-    auto file_view = get_file_view(file_id);
-    CHECK(!file_view.empty());
-    const auto *full_remote_location = file_view.get_full_remote_location();
-    CHECK(full_remote_location != nullptr);
-    CHECK(!full_remote_location->is_web());
-    result.push_back(full_remote_location->as_input_document());
-  }
-  return result;
-}
-
-bool FileManager::extract_was_uploaded(const telegram_api::object_ptr<telegram_api::InputMedia> &input_media) {
-  if (input_media == nullptr) {
-    return false;
-  }
-
-  auto input_media_id = input_media->get_id();
-  if (input_media_id == telegram_api::inputMediaPaidMedia::ID) {
-    auto &extended_media = static_cast<const telegram_api::inputMediaPaidMedia *>(input_media.get())->extended_media_;
-    if (extended_media.size() > 1u) {
-      for (auto &media : extended_media) {
-        CHECK(!extract_was_uploaded(media));
-      }
-      return false;
-    }
-    CHECK(extended_media.size() == 1u);
-    return extract_was_uploaded(extended_media[0]);
-  }
-  return input_media_id == telegram_api::inputMediaUploadedPhoto::ID ||
-         input_media_id == telegram_api::inputMediaUploadedDocument::ID;
-}
-
-bool FileManager::extract_was_thumbnail_uploaded(
-    const telegram_api::object_ptr<telegram_api::InputMedia> &input_media) {
-  if (input_media == nullptr) {
-    return false;
-  }
-  switch (input_media->get_id()) {
-    case telegram_api::inputMediaUploadedDocument::ID:
-      return static_cast<const telegram_api::inputMediaUploadedDocument *>(input_media.get())->thumb_ != nullptr;
-    case telegram_api::inputMediaPaidMedia::ID: {
-      auto &extended_media = static_cast<const telegram_api::inputMediaPaidMedia *>(input_media.get())->extended_media_;
-      if (extended_media.size() > 1u) {
-        for (auto &media : extended_media) {
-          CHECK(!extract_was_thumbnail_uploaded(media));
-        }
-        return false;
-      }
-      CHECK(extended_media.size() == 1u);
-      return extract_was_thumbnail_uploaded(extended_media[0]);
-    }
-    default:
-      return false;
-  }
-}
-
-string FileManager::extract_file_reference(const telegram_api::object_ptr<telegram_api::InputMedia> &input_media) {
-  if (input_media == nullptr) {
-    return string();
-  }
-
-  switch (input_media->get_id()) {
-    case telegram_api::inputMediaDocument::ID:
-      return extract_file_reference(static_cast<const telegram_api::inputMediaDocument *>(input_media.get())->id_);
-    case telegram_api::inputMediaPhoto::ID:
-      return extract_file_reference(static_cast<const telegram_api::inputMediaPhoto *>(input_media.get())->id_);
-    case telegram_api::inputMediaPaidMedia::ID:
-      UNREACHABLE();
-      return string();
-    case telegram_api::inputMediaUploadedDocument::ID: {
-      auto uploaded_document = static_cast<const telegram_api::inputMediaUploadedDocument *>(input_media.get());
-      if (uploaded_document->file_->get_id() != telegram_api::inputFileStoryDocument::ID) {
-        return string();
-      }
-      return extract_file_reference(
-          static_cast<const telegram_api::inputFileStoryDocument *>(uploaded_document->file_.get())->id_);
-    }
-    default:
-      return string();
-  }
-}
-
-vector<string> FileManager::extract_file_references(
-    const telegram_api::object_ptr<telegram_api::InputMedia> &input_media) {
-  if (input_media == nullptr) {
-    return {};
-  }
-  switch (input_media->get_id()) {
-    case telegram_api::inputMediaDocument::ID:
-    case telegram_api::inputMediaPhoto::ID:
-      return {extract_file_reference(input_media)};
-    case telegram_api::inputMediaPaidMedia::ID:
-      return transform(static_cast<const telegram_api::inputMediaPaidMedia *>(input_media.get())->extended_media_,
-                       [](const telegram_api::object_ptr<telegram_api::InputMedia> &media) {
-                         return extract_file_reference(media);
-                       });
-    default:
-      return {};
-  }
-}
-
-string FileManager::extract_cover_file_reference(
-    const telegram_api::object_ptr<telegram_api::InputMedia> &input_media) {
-  if (input_media == nullptr) {
-    return string();
-  }
-
-  switch (input_media->get_id()) {
-    case telegram_api::inputMediaDocument::ID:
-      return extract_file_reference(
-          static_cast<const telegram_api::inputMediaDocument *>(input_media.get())->video_cover_);
-    case telegram_api::inputMediaDocumentExternal::ID:
-      return extract_file_reference(
-          static_cast<const telegram_api::inputMediaDocumentExternal *>(input_media.get())->video_cover_);
-    case telegram_api::inputMediaUploadedDocument::ID:
-      return extract_file_reference(
-          static_cast<const telegram_api::inputMediaUploadedDocument *>(input_media.get())->video_cover_);
-    case telegram_api::inputMediaPaidMedia::ID:
-      UNREACHABLE();
-      return string();
-    default:
-      return string();
-  }
-}
-
-vector<string> FileManager::extract_cover_file_references(
-    const telegram_api::object_ptr<telegram_api::InputMedia> &input_media) {
-  if (input_media == nullptr) {
-    return {};
-  }
-  switch (input_media->get_id()) {
-    case telegram_api::inputMediaDocument::ID:
-    case telegram_api::inputMediaDocumentExternal::ID:
-    case telegram_api::inputMediaUploadedDocument::ID:
-      return {extract_cover_file_reference(input_media)};
-    case telegram_api::inputMediaPaidMedia::ID:
-      return transform(static_cast<const telegram_api::inputMediaPaidMedia *>(input_media.get())->extended_media_,
-                       [](const telegram_api::object_ptr<telegram_api::InputMedia> &media) {
-                         return extract_cover_file_reference(media);
-                       });
-    default:
-      return {};
-  }
-}
-
-string FileManager::extract_file_reference(
-    const telegram_api::object_ptr<telegram_api::InputDocument> &input_document) {
-  if (input_document == nullptr || input_document->get_id() != telegram_api::inputDocument::ID) {
-    return string();
-  }
-
-  return static_cast<const telegram_api::inputDocument *>(input_document.get())->file_reference_.as_slice().str();
-}
-
-string FileManager::extract_file_reference(const telegram_api::object_ptr<telegram_api::InputPhoto> &input_photo) {
-  if (input_photo == nullptr || input_photo->get_id() != telegram_api::inputPhoto::ID) {
-    return string();
-  }
-
-  return static_cast<const telegram_api::inputPhoto *>(input_photo.get())->file_reference_.as_slice().str();
-}
-
-bool FileManager::extract_was_uploaded(const telegram_api::object_ptr<telegram_api::InputChatPhoto> &input_chat_photo) {
-  return input_chat_photo != nullptr && input_chat_photo->get_id() == telegram_api::inputChatUploadedPhoto::ID;
-}
-
-string FileManager::extract_file_reference(
-    const telegram_api::object_ptr<telegram_api::InputChatPhoto> &input_chat_photo) {
-  if (input_chat_photo == nullptr || input_chat_photo->get_id() != telegram_api::inputChatPhoto::ID) {
-    return string();
-  }
-
-  return extract_file_reference(static_cast<const telegram_api::inputChatPhoto *>(input_chat_photo.get())->id_);
-}
-
-FileId FileManager::next_file_id() {
-  if (!empty_file_ids_.empty()) {
-    auto res = empty_file_ids_.back();
-    empty_file_ids_.pop_back();
-    return FileId{res, 0};
-  }
-  CHECK(file_id_info_.size() <= static_cast<size_t>(std::numeric_limits<int32>::max()));
-  FileId res(static_cast<int32>(file_id_info_.size()), 0);
-  file_id_info_.push_back(make_unique<FileIdInfo>());
-  return res;
-}
-
-FileManager::FileNodeId FileManager::next_file_node_id() {
-  CHECK(file_nodes_.size() <= static_cast<size_t>(std::numeric_limits<FileNodeId>::max()));
-  auto res = static_cast<FileNodeId>(file_nodes_.size());
-  file_nodes_.emplace_back(nullptr);
-  return res;
-}
-
-void FileManager::on_start_download(FileDownloadManager::QueryId query_id) {
-  if (is_closed_) {
-    return;
-  }
-
-  auto query = download_queries_.get(query_id);
-  CHECK(query != nullptr);
-
-  auto file_id = query->file_id_;
-  auto file_node = get_file_node(file_id);
-  LOG(DEBUG) << "Receive on_start_download for file " << file_id;
-  if (!file_node) {
-    return;
-  }
-  if (file_node->download_id_ != query_id) {
-    return;
-  }
-
-  LOG(DEBUG) << "Start to download part of file " << file_id;
-  file_node->is_download_started_ = true;
-}
-
-void FileManager::on_partial_download(FileDownloadManager::QueryId query_id, PartialLocalFileLocation partial_local,
-                                      int64 size) {
-  if (is_closed_) {
-    return;
-  }
-
-  auto query = download_queries_.get(query_id);
-  CHECK(query != nullptr);
-
-  auto file_id = query->file_id_;
-  LOG(DEBUG) << "Receive on_partial_download for file " << file_id << " with " << partial_local
-             << " and size = " << size;
-  auto file_node = get_file_node(file_id);
-  if (!file_node) {
-    return;
-  }
-  if (file_node->download_id_ != query_id) {
-    return;
-  }
-
-  if (size != 0) {
-    FileView file_view(file_node);
-    if (!file_view.is_encrypted_secure()) {
-      file_node->set_size(size);
-    }
-  }
-  file_node->set_local_location(LocalFileLocation(std::move(partial_local)), -1, -1 /* TODO */);
-  try_flush_node(file_node, "on_partial_download");
-}
-
-void FileManager::on_hash(FileUploadManager::QueryId query_id, string hash) {
-  if (is_closed_) {
-    return;
-  }
-
-  auto query = upload_queries_.get(query_id);
-  CHECK(query != nullptr);
-
-  auto file_id = query->file_id_;
-
-  auto file_node = get_file_node(file_id);
-  LOG(DEBUG) << "Receive on_hash for file " << file_id;
-  if (!file_node) {
-    return;
-  }
-  if (file_node->upload_id_ != query_id) {
-    return;
-  }
-
-  file_node->encryption_key_.set_value_hash(secure_storage::ValueHash::create(hash).move_as_ok());
-}
-
-void FileManager::on_partial_upload(FileUploadManager::QueryId query_id, PartialRemoteFileLocation partial_remote) {
-  if (is_closed_) {
-    return;
-  }
-
-  auto query = upload_queries_.get(query_id);
-  CHECK(query != nullptr);
-
-  auto file_id = query->file_id_;
-  auto file_node = get_file_node(file_id);
-  LOG(DEBUG) << "Receive on_partial_upload for file " << file_id << " with " << partial_remote;
-  if (!file_node) {
-    LOG(ERROR) << "Can't find being uploaded file " << file_id;
-    return;
-  }
-  if (file_node->upload_id_ != query_id) {
-    LOG(DEBUG) << "Upload identifier of file " << file_id << " is " << file_node->upload_id_ << " instead of "
-               << query_id;
-    return;
-  }
-
-  file_node->set_partial_remote_location(std::move(partial_remote));
-  try_flush_node(file_node, "on_partial_upload");
-}
-
-void FileManager::on_download_ok(FileDownloadManager::QueryId query_id, FullLocalFileLocation local, int64 size,
-                                 bool is_new) {
-  if (is_closed_) {
-    return;
-  }
-
-  DownloadQuery query;
-  bool was_active;
-  std::tie(query, was_active) = finish_download_query(query_id);
-  auto file_id = query.file_id_;
-  LOG(INFO) << "ON DOWNLOAD OK of " << (is_new ? "new" : "checked") << " file " << file_id << " of size " << size;
-  auto r_new_file_id = register_local(std::move(local), DialogId(), size, false, true, file_id);
-  Status status = Status::OK();
-  if (r_new_file_id.is_error()) {
-    status = Status::Error(PSLICE() << "Can't register local file after download: " << r_new_file_id.error().message());
-  } else {
-    if (is_new && context_->need_notify_on_new_files()) {
-      context_->on_new_file(size, get_file_view(r_new_file_id.ok()).get_allocated_local_size(), 1);
-    }
-  }
-  if (status.is_error()) {
-    LOG(ERROR) << status.message();
-    return on_download_error_impl(get_file_node(file_id), query.type_, was_active, std::move(status));
-  }
-}
-
-void FileManager::on_upload_ok(FileUploadManager::QueryId query_id, FileType file_type,
-                               PartialRemoteFileLocation partial_remote) {
-  if (is_closed_) {
-    return;
-  }
-
-  CHECK(partial_remote.ready_part_count_ == partial_remote.part_count_);
-  auto some_file_id = finish_upload_query(query_id).first.file_id_;
-  LOG(INFO) << "ON UPLOAD OK file " << some_file_id;
-
-  auto file_node = get_file_node(some_file_id);
-  if (!file_node) {
-    return;
-  }
-
-  FileUploadId file_upload_id;
-  uint64 file_id_upload_order{std::numeric_limits<uint64>::max()};
-  for (auto id : file_node->file_ids_) {
-    auto it = file_upload_requests_.find(id);
-    if (it != file_upload_requests_.end()) {
-      if (it->second.user_upload_priority_ != 0) {
-        file_upload_id = FileUploadId{id, 0};
-      } else {
-        for (auto &upload_info : it->second.internal_uploads_) {
-          if (upload_info.second.upload_order_ < file_id_upload_order) {
-            file_upload_id = FileUploadId{id, upload_info.first};
-            file_id_upload_order = upload_info.second.upload_order_;
-          }
-        }
-      }
-    }
-  }
-  if (!file_upload_id.get_file_id().is_valid()) {
-    return;
-  }
-  auto callback = extract_upload_callback(file_upload_id);
-  CHECK(callback != nullptr);
-
-  LOG(INFO) << "Found being uploaded " << file_upload_id;
-
-  FileView file_view(file_node);
-  string file_name = get_file_name(file_type, file_view.suggested_path());
-
-  if (file_view.is_encrypted_secret()) {
-    telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file;
-    if (partial_remote.is_big_) {
-      input_file = telegram_api::make_object<telegram_api::inputEncryptedFileBigUploaded>(
-          partial_remote.file_id_, partial_remote.part_count_, file_view.encryption_key().calc_fingerprint());
-    } else {
-      input_file = telegram_api::make_object<telegram_api::inputEncryptedFileUploaded>(
-          partial_remote.file_id_, partial_remote.part_count_, "", file_view.encryption_key().calc_fingerprint());
-    }
-    file_node->set_upload_pause(file_upload_id);
-    callback->on_upload_encrypted_ok(file_upload_id, std::move(input_file));
-  } else if (file_view.is_secure()) {
-    telegram_api::object_ptr<telegram_api::InputSecureFile> input_file;
-    input_file = telegram_api::make_object<telegram_api::inputSecureFileUploaded>(
-        partial_remote.file_id_, partial_remote.part_count_, "" /*md5*/, BufferSlice() /*file_hash*/,
-        BufferSlice() /*encrypted_secret*/);
-    file_node->set_upload_pause(file_upload_id);
-    callback->on_upload_secure_ok(file_upload_id, std::move(input_file));
-  } else {
-    telegram_api::object_ptr<telegram_api::InputFile> input_file;
-    if (partial_remote.is_big_) {
-      input_file = telegram_api::make_object<telegram_api::inputFileBig>(
-          partial_remote.file_id_, partial_remote.part_count_, std::move(file_name));
-    } else {
-      input_file = telegram_api::make_object<telegram_api::inputFile>(
-          partial_remote.file_id_, partial_remote.part_count_, std::move(file_name), "");
-    }
-    file_node->set_upload_pause(file_upload_id);
-    callback->on_upload_ok(file_upload_id, std::move(input_file));
-  }
-  // don't flush node info, because nothing actually changed
-}
-
-// for upload by hash
-void FileManager::on_upload_full_ok(FileUploadManager::QueryId query_id, FullRemoteFileLocation remote) {
-  if (is_closed_) {
-    return;
-  }
-
-  auto file_id = finish_upload_query(query_id).first.file_id_;
-  LOG(INFO) << "ON UPLOAD FULL OK for file " << file_id;
-  auto new_file_id = register_remote(std::move(remote), FileLocationSource::FromServer, DialogId(), 0, 0, "");
-  LOG_STATUS(merge(new_file_id, file_id));
-}
-
-void FileManager::on_partial_generate(FileGenerateManager::QueryId query_id, PartialLocalFileLocation partial_local,
-                                      int64 expected_size) {
-  if (is_closed_) {
-    return;
-  }
-
-  auto query = generate_queries_.get(query_id);
-  CHECK(query != nullptr);
-
-  auto file_id = query->file_id_;
-  auto file_node = get_file_node(file_id);
-  LOG(DEBUG) << "Receive on_partial_generate for file " << file_id << ": " << partial_local.path_ << " "
-             << partial_local.ready_size_;
-  if (!file_node) {
-    return;
-  }
-  if (file_node->generate_id_ != query_id) {
-    return;
-  }
-  file_node->set_local_location(LocalFileLocation(partial_local), -1, -1 /* TODO */);
-  // TODO check for size and local_size, abort generation if needed
-  if (expected_size > 0) {
-    file_node->set_expected_size(expected_size);
-  }
-  if (!file_node->generate_was_update_) {
-    file_node->generate_was_update_ = true;
-    run_upload(file_node, {});
-  }
-  if (file_node->upload_id_ != 0) {
-    send_closure(file_upload_manager_, &FileUploadManager::update_local_file_location, file_node->upload_id_,
-                 LocalFileLocation(std::move(partial_local)));
-  }
-
-  try_flush_node(file_node, "on_partial_generate");
-}
-
-void FileManager::on_generate_ok(FileGenerateManager::QueryId query_id, FullLocalFileLocation local) {
-  if (is_closed_) {
-    return;
-  }
-
-  GenerateQuery query;
-  bool was_active;
-  std::tie(query, was_active) = finish_generate_query(query_id);
-  auto generate_file_id = query.file_id_;
-
-  LOG(INFO) << "Receive on_generate_ok for file " << generate_file_id << ": " << local;
-  auto file_node = get_file_node(generate_file_id);
-  if (!file_node) {
-    return;
-  }
-
-  auto old_upload_id = file_node->upload_id_;
-
-  auto r_new_file_id = register_local(local, DialogId(), 0, false, false, generate_file_id);
-  file_node = get_file_node(generate_file_id);
-  if (r_new_file_id.is_error()) {
-    return on_generate_error_impl(
-        file_node, was_active,
-        Status::Error(PSLICE() << "Can't register local file after generate: " << r_new_file_id.error()));
-  }
-  CHECK(file_node);
-
-  FileView file_view(file_node);
-  if (context_->need_notify_on_new_files()) {
-    auto generate_location = file_view.get_generate_location();
-    if (generate_location == nullptr || !begins_with(generate_location->conversion_, "#file_id#")) {
-      context_->on_new_file(file_view.size(), file_view.get_allocated_local_size(), 1);
-    }
-  }
-
-  run_upload(file_node, {});
-
-  if (was_active) {
-    if (old_upload_id != 0 && old_upload_id == file_node->upload_id_) {
-      send_closure(file_upload_manager_, &FileUploadManager::update_local_file_location, file_node->upload_id_,
-                   LocalFileLocation(std::move(local)));
-    }
-  }
-}
-
-void FileManager::on_download_error(FileDownloadManager::QueryId query_id, Status status) {
-  if (is_closed_) {
-    return;
-  }
-
-  DownloadQuery query;
-  bool was_active;
-  std::tie(query, was_active) = finish_download_query(query_id);
-  auto node = get_file_node(query.file_id_);
-  if (!node) {
-    LOG(ERROR) << "Can't find file node for " << query.file_id_ << " " << status;
-    return;
-  }
-  on_download_error_impl(node, query.type_, was_active, std::move(status));
-}
-
-void FileManager::on_generate_error(FileGenerateManager::QueryId query_id, Status status) {
-  if (is_closed_) {
-    return;
-  }
-
-  GenerateQuery query;
-  bool was_active;
-  std::tie(query, was_active) = finish_generate_query(query_id);
-  auto node = get_file_node(query.file_id_);
-  if (!node) {
-    LOG(ERROR) << "Can't find file node for " << query.file_id_ << " " << status;
-    return;
-  }
-  on_generate_error_impl(node, was_active, std::move(status));
-}
-
-void FileManager::on_upload_error(FileUploadManager::QueryId query_id, Status status) {
-  if (is_closed_) {
-    return;
-  }
-
-  UploadQuery query;
-  bool was_active;
-  std::tie(query, was_active) = finish_upload_query(query_id);
-  auto node = get_file_node(query.file_id_);
-  if (!node) {
-    LOG(ERROR) << "Can't find file node for " << query.file_id_ << " " << status;
-    return;
-  }
-
-  if (query.type_ == UploadQuery::Type::UploadByHash && !G()->close_flag()) {
-    LOG(INFO) << "Upload By Hash failed: " << status << ", restart upload";
-    node->get_by_hash_ = false;
-    return run_upload(node, {});
-  }
-  on_upload_error_impl(node, query.type_, was_active, std::move(status));
-}
-
-void FileManager::on_download_error_impl(FileNodePtr node, DownloadQuery::Type type, bool was_active, Status status) {
-  SCOPE_EXIT {
-    try_flush_node(node, "on_error_impl");
-  };
-
-  if ((status.message() == "FILE_ID_INVALID" || status.message() == "LOCATION_INVALID") &&
-      FileView(node).may_reload_photo()) {
-    node->need_reload_photo_ = true;
-    return run_download(node, true);
-  }
-
-  if (FileReferenceManager::is_file_reference_error(status)) {
-    string file_reference;
-    Slice prefix = "#BASE64";
-    Slice error_message = status.message();
-    auto pos = error_message.rfind('#');
-    if (pos < error_message.size() && begins_with(error_message.substr(pos), prefix)) {
-      auto r_file_reference = base64_decode(error_message.substr(pos + prefix.size()));
-      if (r_file_reference.is_ok()) {
-        file_reference = r_file_reference.move_as_ok();
-      } else {
-        LOG(ERROR) << "Can't decode file reference from error " << status << ": " << r_file_reference.error();
-      }
-    } else {
-      LOG(ERROR) << "Unexpected error, file_reference will be deleted just in case " << status;
-    }
-    CHECK(!node->file_ids_.empty());
-    delete_file_reference(node->file_ids_.back(), file_reference);
-    return run_download(node, true);
-  }
-
-  if (begins_with(status.message(), "FILE_DOWNLOAD_RESTART")) {
-    if (ends_with(status.message(), "WITH_FILE_REFERENCE")) {
-      node->download_was_update_file_reference_ = true;
-      return run_download(node, true);
-    } else if (ends_with(status.message(), "INCREASE_PART_SIZE")) {
-      if (try_fix_partial_local_location(node)) {
-        return run_download(node, true);
-      }
-    } else {
-      node->can_search_locally_ = false;
-      return run_download(node, true);
-    }
-  }
-
-  if (status.message() == "MTPROTO_CLUSTER_INVALID") {
-    send_closure(G()->config_manager(), &ConfigManager::request_config, true);
-    return run_download(node, true);
-  }
-
-  if (!was_active) {
-    return;
-  }
-
-  if (G()->close_flag() && (status.code() < 400 || (status.code() == Global::request_aborted_error().code() &&
-                                                    status.message() == Global::request_aborted_error().message()))) {
-    status = Global::request_aborted_error();
-  } else {
-    if (status.code() != -1) {
-      LOG(WARNING) << "Failed to " << type << " file " << node->main_file_id_ << " of type "
-                   << FileView(node).get_type() << ": " << status;
-    }
-    if (status.code() == 0 && node->local_.type() == LocalFileLocation::Type::Partial &&
-        !begins_with(status.message(), "FILE_DOWNLOAD_ID_INVALID") &&
-        !begins_with(status.message(), "FILE_DOWNLOAD_LIMIT")) {
-      // Remove partial location
-      CSlice path = node->local_.partial().path_;
-      if (begins_with(path, get_files_temp_dir(FileType::SecureDecrypted)) ||
-          begins_with(path, get_files_temp_dir(FileType::Video))) {
-        LOG(INFO) << "Unlink file " << path;
-        send_closure(file_load_manager_, &FileLoadManager::unlink_file, std::move(node->local_.partial().path_),
-                     Promise<Unit>());
-        node->drop_local_location();
-      }
-    }
-    status = Status::Error(400, status.message());
-  }
-
-  on_file_load_error(node, std::move(status));
-}
-
-void FileManager::on_generate_error_impl(FileNodePtr node, bool was_active, Status status) {
-  SCOPE_EXIT {
-    try_flush_node(node, "on_generate_error_impl");
-  };
-  if (begins_with(status.message(), "FILE_GENERATE_LOCATION_INVALID")) {
-    node->set_generate_location(nullptr);
-  }
-  if (!was_active) {
-    return;
-  }
-
-  if (G()->close_flag() && (status.code() < 400 || (status.code() == Global::request_aborted_error().code() &&
-                                                    status.message() == Global::request_aborted_error().message()))) {
-    status = Global::request_aborted_error();
-  } else {
-    if (status.code() != -1 && node->generate_ != nullptr) {
-      LOG(WARNING) << "Failed to generate file " << node->main_file_id_ << " with " << *node->generate_ << ": "
-                   << status;
-    }
-    if (status.code() == 0) {
-      // Remove partial locations
-      if (node->local_.type() == LocalFileLocation::Type::Partial) {
-        // the file itself has already been deleted
-        node->drop_local_location();
-      }
-      node->delete_partial_remote_location();
-    }
-    status = Status::Error(400, status.message());
-  }
-
-  on_file_load_error(node, std::move(status));
-}
-
-void FileManager::on_upload_error_impl(FileNodePtr node, UploadQuery::Type type, bool was_active, Status status) {
-  SCOPE_EXIT {
-    try_flush_node(node, "on_upload_error_impl");
-  };
-
-  if (status.message() == "FILE_PART_INVALID") {
-    bool has_partial_small_location = node->remote_.partial && !node->remote_.partial->is_big_;
-    FileView file_view(node);
-    auto expected_size = file_view.expected_size(true);
-    bool should_be_big_location = is_file_big(file_view.get_type(), expected_size);
-
-    node->delete_partial_remote_location();
-    if (has_partial_small_location && should_be_big_location) {
-      return run_upload(node, {});
-    }
-
-    LOG(ERROR) << "Failed to upload file " << node->main_file_id_ << ": unexpected " << status
-               << ", is_small = " << has_partial_small_location << ", should_be_big = " << should_be_big_location
-               << ", expected size = " << expected_size;
-  }
-
-  if (begins_with(status.message(), "FILE_UPLOAD_RESTART")) {
-    if (ends_with(status.message(), "WITH_FILE_REFERENCE")) {
-      node->upload_was_update_file_reference_ = true;
-    } else {
-      node->delete_partial_remote_location();
-    }
-    return run_upload(node, {});
-  }
-
-  if (!was_active) {
-    return;
-  }
-
-  if (G()->close_flag() && (status.code() < 400 || (status.code() == Global::request_aborted_error().code() &&
-                                                    status.message() == Global::request_aborted_error().message()))) {
-    status = Global::request_aborted_error();
-  } else {
-    if (status.code() != -1) {
-      LOG(WARNING) << "Failed to " << type << " file " << node->main_file_id_ << " of type "
-                   << FileView(node).get_type() << ": " << status;
-    }
-    if (status.code() == 0) {
-      node->delete_partial_remote_location();
-    }
-    status = Status::Error(400, status.message());
-  }
-
-  on_file_load_error(node, std::move(status));
-}
-
-void FileManager::on_file_load_error(FileNodePtr node, Status status) {
-  // Stop everything on error
-  do_cancel_generate(node);
-  do_cancel_download(node);
-  do_cancel_upload(node);
-
-  for (auto file_id : vector<FileId>(node->file_ids_)) {
-    finish_downloads(file_id, status);
-    finish_uploads(file_id, status);
-  }
-}
-
-std::pair<FileManager::DownloadQuery, bool> FileManager::finish_download_query(FileDownloadManager::QueryId query_id) {
-  auto query = download_queries_.get(query_id);
-  CHECK(query != nullptr);
-  auto res = *query;
-  download_queries_.erase(query_id);
-
-  auto node = get_file_node(res.file_id_);
-  if (node && node->download_id_ == query_id) {
-    node->download_id_ = 0;
-    node->download_was_update_file_reference_ = false;
-    node->is_download_started_ = false;
-    node->set_download_priority(0);
-    return std::make_pair(res, true);
-  }
-  return std::make_pair(res, false);
-}
-
-std::pair<FileManager::GenerateQuery, bool> FileManager::finish_generate_query(FileGenerateManager::QueryId query_id) {
-  auto query = generate_queries_.get(query_id);
-  CHECK(query != nullptr);
-  auto res = *query;
-  generate_queries_.erase(query_id);
-
-  auto node = get_file_node(res.file_id_);
-  if (node && node->generate_id_ == query_id) {
-    node->generate_id_ = 0;
-    node->generate_was_update_ = false;
-    node->set_generate_priority(0, 0);
-    return std::make_pair(res, true);
-  }
-  return std::make_pair(res, false);
-}
-
-std::pair<FileManager::UploadQuery, bool> FileManager::finish_upload_query(FileUploadManager::QueryId query_id) {
-  auto query = upload_queries_.get(query_id);
-  CHECK(query != nullptr);
-  auto res = *query;
-  upload_queries_.erase(query_id);
-
-  auto node = get_file_node(res.file_id_);
-  if (node && node->upload_id_ == query_id) {
-    node->upload_id_ = 0;
-    node->upload_was_update_file_reference_ = false;
-    node->set_upload_priority(0);
-    return std::make_pair(res, true);
-  }
-  return std::make_pair(res, false);
-}
-
-FullRemoteFileLocation *FileManager::get_remote(int32 key) {
-  if (key == 0 || !context_->keep_exact_remote_location()) {
-    return nullptr;
-  }
-  return &remote_location_info_.get(key).remote_;
-}
-
-void FileManager::preliminary_upload_file(const td_api::object_ptr<td_api::InputFile> &input_file, FileType file_type,
-                                          int32 priority, Promise<td_api::object_ptr<td_api::file>> &&promise) {
-  TRY_STATUS_PROMISE(promise, check_priority(priority));
-
-  bool is_secret = file_type == FileType::Encrypted || file_type == FileType::EncryptedThumbnail;
-  bool is_secure = file_type == FileType::SecureEncrypted;
-  auto r_file_id =
-      get_input_file_id(file_type, input_file, DialogId(), false, is_secret, !is_secure && !is_secret, is_secure);
-  if (r_file_id.is_error()) {
-    return promise.set_error(Status::Error(r_file_id.error().code(), r_file_id.error().message()));
-  }
-  auto file_id = r_file_id.ok();
-
-  upload({file_id, 0}, std::make_shared<PreliminaryUploadFileCallback>(), priority, 0);
-
-  promise.set_value(get_file_object(file_id));
-}
-
-Result<string> FileManager::get_suggested_file_name(FileId file_id, const string &directory) {
-  if (!file_id.is_valid()) {
-    return Status::Error(400, "Invalid file identifier");
-  }
-  auto node = get_sync_file_node(file_id);
-  if (!node) {
-    return Status::Error(400, "Wrong file identifier");
-  }
-
-  return ::td::get_suggested_file_name(directory, PathView(node->suggested_path()).file_name());
-}
-
-void FileManager::hangup() {
-  file_db_.reset();
-  file_generate_manager_.reset();
-  file_download_manager_.reset();
-  file_upload_manager_.reset();
-  while (!download_queries_.empty()) {
-    auto query_ids = download_queries_.ids();
-    for (auto query_id : query_ids) {
-      DownloadQuery query;
-      bool was_active;
-      std::tie(query, was_active) = finish_download_query(static_cast<FileDownloadManager::QueryId>(query_id));
-      auto node = get_file_node(query.file_id_);
-      if (node) {
-        on_download_error_impl(node, query.type_, was_active, Global::request_aborted_error());
-      }
-    }
-  }
-  while (!generate_queries_.empty()) {
-    auto query_ids = generate_queries_.ids();
-    for (auto query_id : query_ids) {
-      GenerateQuery query;
-      bool was_active;
-      std::tie(query, was_active) = finish_generate_query(static_cast<FileGenerateManager::QueryId>(query_id));
-      auto node = get_file_node(query.file_id_);
-      if (node) {
-        on_generate_error_impl(node, was_active, Global::request_aborted_error());
-      }
-    }
-  }
-  while (!upload_queries_.empty()) {
-    auto query_ids = upload_queries_.ids();
-    for (auto query_id : query_ids) {
-      UploadQuery query;
-      bool was_active;
-      std::tie(query, was_active) = finish_upload_query(static_cast<FileUploadManager::QueryId>(query_id));
-      auto node = get_file_node(query.file_id_);
-      if (node) {
-        on_upload_error_impl(node, query.type_, was_active, Global::request_aborted_error());
-      }
-    }
-  }
-  is_closed_ = true;
-  stop();
-}
-
-void FileManager::tear_down() {
-  parent_.reset();
-
-  LOG(DEBUG) << "Have " << file_id_info_.size() << " files with " << file_nodes_.size() << " file nodes, "
-             << local_location_to_file_id_.size() << " local locations and " << remote_location_info_.size()
-             << " remote locations to free";
-}
-
-std::atomic<int64> FileManager::internal_load_id_;
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileManager.h b/third-party/td/td/td/telegram/files/FileManager.h
deleted file mode 100644
index efce5456ce..0000000000
--- a/third-party/td/td/td/telegram/files/FileManager.h
+++ /dev/null
@@ -1,982 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileDbId.h"
-#include "td/telegram/files/FileDownloadManager.h"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileGenerateManager.h"
-#include "td/telegram/files/FileId.h"
-#include "td/telegram/files/FileLoaderUtils.h"
-#include "td/telegram/files/FileLoadManager.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/files/FileUploadId.h"
-#include "td/telegram/files/FileUploadManager.h"
-#include "td/telegram/Location.h"
-#include "td/telegram/PhotoSizeSource.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/Enumerator.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/optional.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/WaitFreeHashMap.h"
-#include "td/utils/WaitFreeVector.h"
-
-#include <atomic>
-#include <map>
-#include <memory>
-#include <set>
-#include <utility>
-
-namespace td {
-
-extern int VERBOSITY_NAME(update_file);
-
-class FileData;
-class FileDbInterface;
-
-enum class FileLocationSource : int8 { None, FromUser, FromBinlog, FromDatabase, FromServer };
-
-struct NewRemoteFileLocation {
-  NewRemoteFileLocation() = default;
-  NewRemoteFileLocation(RemoteFileLocation remote, FileLocationSource source);
-  RemoteFileLocation partial_or_empty() const;
-  unique_ptr<PartialRemoteFileLocation> partial;
-
-  //TODO: use RemoteId
-  // hardest part is to determine whether we should flush this location to db.
-  // probably, will need some generation in RemoteInfo
-  optional<FullRemoteFileLocation> full;
-  bool is_full_alive{false};  // if false, then we may try to upload this file
-  FileLocationSource full_source{FileLocationSource::None};
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NewRemoteFileLocation &location);
-
-class FileNode {
- public:
-  FileNode(LocalFileLocation local, NewRemoteFileLocation remote, unique_ptr<FullGenerateFileLocation> generate,
-           int64 size, int64 expected_size, string remote_name, string url, DialogId owner_dialog_id,
-           FileEncryptionKey key, FileId main_file_id, int8 main_file_id_priority)
-      : local_(std::move(local))
-      , remote_(std::move(remote))
-      , generate_(std::move(generate))
-      , size_(size)
-      , expected_size_(expected_size)
-      , remote_name_(std::move(remote_name))
-      , url_(std::move(url))
-      , owner_dialog_id_(owner_dialog_id)
-      , encryption_key_(std::move(key))
-      , main_file_id_(main_file_id)
-      , main_file_id_priority_(main_file_id_priority) {
-    init_ready_size();
-    file_ids_.push_back(main_file_id);
-  }
-  void drop_local_location();
-  void set_local_location(const LocalFileLocation &local, int64 prefix_offset, int64 ready_prefix_size);
-  void set_new_remote_location(NewRemoteFileLocation remote);
-  void delete_partial_remote_location();
-  void set_partial_remote_location(PartialRemoteFileLocation remote);
-
-  bool delete_file_reference(Slice file_reference);
-  void set_generate_location(unique_ptr<FullGenerateFileLocation> &&generate);
-  void set_size(int64 size);
-  void set_expected_size(int64 expected_size);
-  void set_remote_name(string remote_name);
-  void set_url(string url);
-  void set_owner_dialog_id(DialogId owner_id);
-  void set_encryption_key(FileEncryptionKey key);
-  void set_upload_pause(FileUploadId upload_pause);
-
-  void set_download_priority(int8 priority);
-  void set_upload_priority(int8 priority);
-  void set_generate_priority(int8 download_priority, int8 upload_priority);
-
-  void set_download_offset(int64 download_offset);
-  void set_download_limit(int64 download_limit);
-  void set_ignore_download_limit(bool ignore_download_limit);
-
-  void on_changed();
-  void on_info_changed();
-  void on_pmc_changed();
-
-  bool need_info_flush() const;
-  bool need_pmc_flush() const;
-
-  void on_pmc_flushed();
-  void on_info_flushed();
-
-  int64 get_download_limit() const;
-
-  string suggested_path() const;
-
- private:
-  friend class FileView;
-  friend class FileManager;
-
-  static constexpr char PERSISTENT_ID_VERSION_OLD = 2;
-  static constexpr char PERSISTENT_ID_VERSION_GENERATED = 3;
-  static constexpr char PERSISTENT_ID_VERSION = 4;
-
-  LocalFileLocation local_;
-  FileUploadManager::QueryId upload_id_ = 0;
-  int64 download_offset_ = 0;
-  int64 private_download_limit_ = 0;
-  int64 local_ready_prefix_size_ = 0;  // PartialLocal only
-
-  NewRemoteFileLocation remote_;
-
-  FileDownloadManager::QueryId download_id_ = 0;
-
-  unique_ptr<FullGenerateFileLocation> generate_;
-  FileGenerateManager::QueryId generate_id_ = 0;
-
-  int64 size_ = 0;
-  int64 expected_size_ = 0;
-  string remote_name_;
-  string url_;
-  DialogId owner_dialog_id_;
-  FileEncryptionKey encryption_key_;
-  FileDbId pmc_id_;
-  vector<FileId> file_ids_;
-
-  FileId main_file_id_;
-
-  double last_successful_force_reupload_time_ = -1e10;
-
-  FileUploadId upload_pause_;
-
-  int8 upload_priority_ = 0;
-  int8 download_priority_ = 0;
-  int8 generate_priority_ = 0;
-
-  int8 generate_download_priority_ = 0;
-  int8 generate_upload_priority_ = 0;
-
-  int8 main_file_id_priority_ = 0;
-
-  bool is_download_offset_dirty_ = false;
-  bool is_download_limit_dirty_ = false;
-
-  bool get_by_hash_{false};
-  bool can_search_locally_{true};
-  bool need_reload_photo_{false};
-
-  bool is_download_started_ = false;
-  bool generate_was_update_ = false;
-
-  bool need_load_from_pmc_ = false;
-
-  bool pmc_changed_flag_{false};
-  bool info_changed_flag_{false};
-
-  bool upload_was_update_file_reference_{false};
-  bool download_was_update_file_reference_{false};
-
-  bool upload_prefer_small_{false};
-
-  bool ignore_download_limit_{false};
-
-  void init_ready_size();
-
-  void recalc_ready_prefix_size(int64 prefix_offset, int64 ready_prefix_size);
-
-  void update_effective_download_limit(int64 old_download_limit);
-
-  string get_persistent_file_id() const;
-
-  string get_unique_file_id() const;
-
-  static string get_unique_id(const FullGenerateFileLocation &location);
-  static string get_unique_id(const FullRemoteFileLocation &location);
-
-  static string get_persistent_id(const FullGenerateFileLocation &location);
-  static string get_persistent_id(const FullRemoteFileLocation &location);
-
-  FileType get_type() const {
-    if (local_.type() == LocalFileLocation::Type::Full) {
-      return local_.full().file_type_;
-    }
-    if (remote_.full) {
-      return remote_.full.value().file_type_;
-    }
-    if (generate_ != nullptr) {
-      return generate_->file_type_;
-    }
-    return FileType::Temp;
-  }
-
-  int64 expected_size(bool may_guess = false) const;
-  bool is_downloading() const;
-  int64 downloaded_prefix(int64 offset) const;
-  int64 local_prefix_size() const;
-  int64 local_total_size() const;
-  bool is_uploading() const;
-  int64 remote_size() const;
-  string path() const;
-  bool can_delete() const;
-};
-
-class FileManager;
-
-class FileNodePtr {
- public:
-  FileNodePtr() = default;
-  FileNodePtr(FileId file_id, FileManager *file_manager) : file_id_(file_id), file_manager_(file_manager) {
-  }
-
-  FileNode *operator->() const;
-  FileNode &operator*() const;
-  FileNode *get() const;
-  FullRemoteFileLocation *get_remote() const;
-  explicit operator bool() const noexcept;
-
- private:
-  FileId file_id_;
-  FileManager *file_manager_ = nullptr;
-  FileNode *get_unsafe() const;
-};
-
-class ConstFileNodePtr {
- public:
-  ConstFileNodePtr() = default;
-  ConstFileNodePtr(FileNodePtr file_node_ptr) : file_node_ptr_(file_node_ptr) {
-  }
-
-  const FileNode *operator->() const {
-    return file_node_ptr_.operator->();
-  }
-  const FileNode &operator*() const {
-    return file_node_ptr_.operator*();
-  }
-
-  explicit operator bool() const noexcept {
-    return static_cast<bool>(file_node_ptr_);
-  }
-  const FullRemoteFileLocation *get_remote() const {
-    return file_node_ptr_.get_remote();
-  }
-
-  const FileNode *get() const {
-    return file_node_ptr_.get();
-  }
-
- private:
-  FileNodePtr file_node_ptr_;
-};
-
-class FileView {
- public:
-  FileView() = default;
-  explicit FileView(ConstFileNodePtr node);
-
-  bool empty() const;
-
-  bool has_full_local_location() const;
-
-  const FullLocalFileLocation *get_full_local_location() const;
-
-  bool has_generate_location() const;
-
-  const FullGenerateFileLocation *get_generate_location() const;
-
-  bool has_full_remote_location() const;
-
-  bool has_alive_remote_location() const;
-
-  bool has_active_upload_remote_location() const;
-
-  bool has_active_download_remote_location() const;
-
-  const FullRemoteFileLocation *get_full_remote_location() const;
-
-  const FullRemoteFileLocation *get_main_remote_location() const;
-
-  bool has_url() const;
-
-  const string *get_url() const;
-
-  string remote_name() const;
-
-  string suggested_path() const;
-
-  DialogId owner_dialog_id() const;
-
-  bool get_by_hash() const;
-
-  FileId get_main_file_id() const {
-    return node_->main_file_id_;
-  }
-
-  int64 size() const;
-  int64 expected_size(bool may_guess = false) const;
-  bool is_downloading() const;
-  int64 download_offset() const;
-  int64 downloaded_prefix(int64 offset) const;
-  int64 local_prefix_size() const;
-  int64 local_total_size() const;
-  bool is_uploading() const;
-  int64 remote_size() const;
-  string path() const;
-
-  int64 get_allocated_local_size() const;
-
-  bool can_download_from_server() const;
-  bool can_generate() const;
-  bool can_delete() const;
-
-  FileType get_type() const {
-    return node_->get_type();
-  }
-  bool is_encrypted_secret() const {
-    return get_type() == FileType::Encrypted;
-  }
-  bool is_encrypted_secure() const {
-    return get_type() == FileType::SecureEncrypted;
-  }
-  bool is_secure() const {
-    auto type = get_type();
-    return type == FileType::SecureEncrypted || type == FileType::SecureDecrypted;
-  }
-  bool is_encrypted_any() const {
-    auto type = get_type();
-    return type == FileType::Encrypted || type == FileType::SecureEncrypted;
-  }
-  bool is_encrypted() const {
-    auto type = get_type();
-    return type == FileType::Encrypted || type == FileType::SecureEncrypted || type == FileType::SecureDecrypted;
-  }
-  const FileEncryptionKey &encryption_key() const {
-    return node_->encryption_key_;
-  }
-
-  bool may_reload_photo() const {
-    const auto *full_remote_location = get_full_remote_location();
-    if (full_remote_location == nullptr) {
-      return false;
-    }
-    if (!full_remote_location->is_photo()) {
-      return false;
-    }
-    auto type = full_remote_location->get_source().get_type("may_reload_photo");
-    return type != PhotoSizeSource::Type::Legacy && type != PhotoSizeSource::Type::FullLegacy &&
-           type != PhotoSizeSource::Type::Thumbnail;
-  }
-
-  string get_unique_file_id() const {
-    if (!empty()) {
-      return node_->get_unique_file_id();
-    }
-    return string();
-  }
-
- private:
-  ConstFileNodePtr node_{};
-};
-
-class FileManager final : public Actor {
- public:
-  class DownloadCallback {
-   public:
-    DownloadCallback() = default;
-    DownloadCallback(const DownloadCallback &) = delete;
-    DownloadCallback &operator=(const DownloadCallback &) = delete;
-    virtual ~DownloadCallback() = default;
-    virtual void on_progress(FileId file_id) {
-    }
-
-    virtual void on_download_ok(FileId file_id) = 0;
-    virtual void on_download_error(FileId file_id, Status error) = 0;
-  };
-
-  class UploadCallback {
-   public:
-    UploadCallback() = default;
-    UploadCallback(const UploadCallback &) = delete;
-    UploadCallback &operator=(const UploadCallback &) = delete;
-    virtual ~UploadCallback() = default;
-
-    // After on_upload_ok all uploads of this file will be paused till merge, delete_partial_remote_location or
-    // explicit upload request with the same file_id.
-    // Also, upload may be resumed after some other merge.
-    virtual void on_upload_ok(FileUploadId file_upload_id,
-                              telegram_api::object_ptr<telegram_api::InputFile> input_file) = 0;
-
-    virtual void on_upload_encrypted_ok(FileUploadId file_upload_id,
-                                        telegram_api::object_ptr<telegram_api::InputEncryptedFile> input_file) {
-      UNREACHABLE();
-    }
-
-    virtual void on_upload_secure_ok(FileUploadId file_upload_id,
-                                     telegram_api::object_ptr<telegram_api::InputSecureFile> input_file) {
-      UNREACHABLE();
-    }
-
-    virtual void on_upload_error(FileUploadId file_upload_id, Status error) = 0;
-  };
-
-  class Context {
-   public:
-    virtual bool need_notify_on_new_files() = 0;
-
-    virtual void on_new_file(int64 size, int64 real_size, int32 cnt) = 0;
-
-    virtual void on_file_updated(FileId size) = 0;
-
-    virtual bool add_file_source(FileId file_id, FileSourceId file_source_id, const char *source) = 0;
-
-    virtual bool remove_file_source(FileId file_id, FileSourceId file_source_id, const char *source) = 0;
-
-    virtual void on_merge_files(FileId to_file_id, FileId from_file_id) = 0;
-
-    virtual vector<FileSourceId> get_some_file_sources(FileId file_id) = 0;
-
-    virtual void repair_file_reference(FileId file_id, Promise<Unit> promise) = 0;
-
-    virtual void reload_photo(PhotoSizeSource source, Promise<Unit> promise) = 0;
-
-    virtual bool keep_exact_remote_location() = 0;
-
-    virtual ActorShared<> create_reference() = 0;
-
-    Context() = default;
-    Context(const Context &) = delete;
-    Context &operator=(const Context &) = delete;
-    virtual ~Context() = default;
-  };
-
-  explicit FileManager(unique_ptr<Context> context);
-  FileManager(const FileManager &) = delete;
-  FileManager &operator=(const FileManager &) = delete;
-  FileManager(FileManager &&) = delete;
-  FileManager &operator=(FileManager &&) = delete;
-  ~FileManager() final;
-
-  static Status check_priority(int32 priority);
-
-  static bool is_remotely_generated_file(Slice conversion);
-
-  static vector<int> get_missing_file_parts(const Status &error);
-
-  void init_actor();
-
-  FileId copy_file_id(FileId file_id, FileType file_type, DialogId owner_dialog_id, const char *source);
-
-  void on_file_unlink(const FullLocalFileLocation &location);
-
-  FileId register_empty(FileType type);
-
-  Result<FileId> register_local(FullLocalFileLocation location, DialogId owner_dialog_id, int64 size,
-                                bool get_by_hash = false, bool skip_file_size_checks = false,
-                                FileId merge_file_id = FileId()) TD_WARN_UNUSED_RESULT;
-
-  FileId register_remote(FullRemoteFileLocation location, FileLocationSource file_location_source,
-                         DialogId owner_dialog_id, int64 size, int64 expected_size,
-                         string remote_name) TD_WARN_UNUSED_RESULT;
-
-  FileId register_generate(FileType file_type, string original_path, string conversion, DialogId owner_dialog_id,
-                           int64 expected_size) TD_WARN_UNUSED_RESULT;
-
-  Status merge(FileId x_file_id, FileId y_file_id, bool no_sync = false);
-
-  void try_merge_documents(FileId new_file_id, FileId old_file_id);
-
-  void add_file_source(FileId file_id, FileSourceId file_source_id, const char *source);
-
-  void remove_file_source(FileId file_id, FileSourceId file_source_id, const char *source);
-
-  void change_files_source(FileSourceId file_source_id, const vector<FileId> &old_file_ids,
-                           const vector<FileId> &new_file_ids, const char *source);
-
-  void on_file_reference_repaired(FileId file_id, FileSourceId file_source_id, Result<Unit> &&result,
-                                  Promise<Unit> &&promise);
-
-  bool set_encryption_key(FileId file_id, FileEncryptionKey key);
-  bool set_content(FileId file_id, BufferSlice bytes);
-
-  void check_local_location(FileId file_id, bool skip_file_size_checks);
-  void check_local_location_async(FileId file_id, bool skip_file_size_checks);
-
-  static int64 get_internal_download_id();
-
-  void download_file(FileId file_id, int32 priority, int64 offset, int64 limit, bool synchronous,
-                     Promise<td_api::object_ptr<td_api::file>> &&promise);
-
-  void download(FileId file_id, int64 internal_download_id, std::shared_ptr<DownloadCallback> callback,
-                int32 new_priority, int64 offset, int64 limit,
-                Promise<td_api::object_ptr<td_api::file>> promise = Promise<td_api::object_ptr<td_api::file>>());
-
-  void cancel_download(FileId file_id, int64 internal_download_id, bool only_if_pending);
-
-  static int64 get_internal_upload_id();
-
-  void upload(FileUploadId file_upload_id, std::shared_ptr<UploadCallback> callback, int32 new_priority,
-              uint64 upload_order);
-
-  void resume_upload(FileUploadId file_upload_id, vector<int> bad_parts, std::shared_ptr<UploadCallback> callback,
-                     int32 new_priority, uint64 upload_order, bool force = false, bool prefer_small = false);
-
-  void cancel_upload(FileUploadId file_upload_id);
-
-  bool delete_partial_remote_location(FileUploadId file_upload_id);
-
-  void delete_partial_remote_location_if_needed(FileUploadId file_upload_id, const Status &error);
-
-  void delete_file_reference(FileId file_id, Slice file_reference);
-
-  void get_content(FileId file_id, Promise<BufferSlice> promise);
-
-  void preliminary_upload_file(const td_api::object_ptr<td_api::InputFile> &input_file, FileType file_type,
-                               int32 priority, Promise<td_api::object_ptr<td_api::file>> &&promise);
-
-  Result<string> get_suggested_file_name(FileId file_id, const string &directory);
-
-  void read_file_part(FileId file_id, int64 offset, int64 count, int left_tries,
-                      Promise<td_api::object_ptr<td_api::filePart>> promise);
-
-  void delete_file(FileId file_id, Promise<Unit> promise, const char *source);
-
-  void external_file_generate_write_part(int64 generation_id, int64 offset, string data, Promise<> promise);
-  void external_file_generate_progress(int64 generation_id, int64 expected_size, int64 local_prefix_size,
-                                       Promise<> promise);
-  void external_file_generate_finish(int64 generation_id, Status status, Promise<> promise);
-
-  Result<FileId> from_persistent_id(CSlice persistent_id, FileType file_type) TD_WARN_UNUSED_RESULT;
-  FileView get_file_view(FileId file_id) const;
-  FileView get_sync_file_view(FileId file_id);
-  td_api::object_ptr<td_api::file> get_file_object(FileId file_id);
-  vector<int32> get_file_ids_object(const vector<FileId> &file_ids);
-
-  Result<FileId> get_input_thumbnail_file_id(const tl_object_ptr<td_api::InputFile> &thumbnail_input_file,
-                                             DialogId owner_dialog_id, bool is_encrypted) TD_WARN_UNUSED_RESULT;
-  Result<FileId> get_input_file_id(FileType type, const tl_object_ptr<td_api::InputFile> &file,
-                                   DialogId owner_dialog_id, bool allow_zero, bool is_encrypted,
-                                   bool get_by_hash = false, bool is_secure = false,
-                                   bool force_reuse = false) TD_WARN_UNUSED_RESULT;
-
-  Result<FileId> get_map_thumbnail_file_id(Location location, int32 zoom, int32 width, int32 height, int32 scale,
-                                           DialogId owner_dialog_id) TD_WARN_UNUSED_RESULT;
-
-  Result<FileId> get_audio_thumbnail_file_id(string title, string performer, bool is_small,
-                                             DialogId owner_dialog_id) TD_WARN_UNUSED_RESULT;
-
-  FileType guess_file_type(const tl_object_ptr<td_api::InputFile> &file);
-
-  vector<tl_object_ptr<telegram_api::InputDocument>> get_input_documents(const vector<FileId> &file_ids);
-
-  static bool extract_was_uploaded(const telegram_api::object_ptr<telegram_api::InputMedia> &input_media);
-
-  static bool extract_was_thumbnail_uploaded(const telegram_api::object_ptr<telegram_api::InputMedia> &input_media);
-
-  static string extract_file_reference(const telegram_api::object_ptr<telegram_api::InputMedia> &input_media);
-
-  static vector<string> extract_file_references(const telegram_api::object_ptr<telegram_api::InputMedia> &input_media);
-
-  static string extract_cover_file_reference(const telegram_api::object_ptr<telegram_api::InputMedia> &input_media);
-
-  static vector<string> extract_cover_file_references(
-      const telegram_api::object_ptr<telegram_api::InputMedia> &input_media);
-
-  static string extract_file_reference(const telegram_api::object_ptr<telegram_api::InputDocument> &input_document);
-
-  static string extract_file_reference(const telegram_api::object_ptr<telegram_api::InputPhoto> &input_photo);
-
-  static bool extract_was_uploaded(const telegram_api::object_ptr<telegram_api::InputChatPhoto> &input_chat_photo);
-
-  static string extract_file_reference(const telegram_api::object_ptr<telegram_api::InputChatPhoto> &input_chat_photo);
-
-  template <class StorerT>
-  void store_file(FileId file_id, StorerT &storer, int32 ttl = 5) const;
-
-  template <class ParserT>
-  FileId parse_file(ParserT &parser);
-
- private:
-  static constexpr bool STORE_FILE_INFO = false;
-
-  class FileDownloadManagerCallback final : public FileDownloadManager::Callback {
-   public:
-    explicit FileDownloadManagerCallback(ActorId<FileManager> actor_id) : actor_id_(std::move(actor_id)) {
-    }
-
-   private:
-    ActorId<FileManager> actor_id_;
-
-    void on_start_download(FileDownloadManager::QueryId query_id) final {
-      send_closure(actor_id_, &FileManager::on_start_download, query_id);
-    }
-
-    void on_partial_download(FileDownloadManager::QueryId query_id, PartialLocalFileLocation partial_local,
-                             int64 size) final {
-      send_closure(actor_id_, &FileManager::on_partial_download, query_id, std::move(partial_local), size);
-    }
-
-    void on_download_ok(FileDownloadManager::QueryId query_id, FullLocalFileLocation local, int64 size,
-                        bool is_new) final {
-      send_closure(actor_id_, &FileManager::on_download_ok, query_id, std::move(local), size, is_new);
-    }
-
-    void on_error(FileDownloadManager::QueryId query_id, Status status) final {
-      send_closure(actor_id_, &FileManager::on_download_error, query_id, std::move(status));
-    }
-  };
-  class FileUploadManagerCallback final : public FileUploadManager::Callback {
-   public:
-    explicit FileUploadManagerCallback(ActorId<FileManager> actor_id) : actor_id_(std::move(actor_id)) {
-    }
-
-   private:
-    ActorId<FileManager> actor_id_;
-
-    void on_partial_upload(FileUploadManager::QueryId query_id, PartialRemoteFileLocation partial_remote) final {
-      send_closure(actor_id_, &FileManager::on_partial_upload, query_id, std::move(partial_remote));
-    }
-
-    void on_hash(FileUploadManager::QueryId query_id, string hash) final {
-      send_closure(actor_id_, &FileManager::on_hash, query_id, std::move(hash));
-    }
-
-    void on_upload_ok(FileUploadManager::QueryId query_id, FileType file_type, PartialRemoteFileLocation remote) final {
-      send_closure(actor_id_, &FileManager::on_upload_ok, query_id, file_type, std::move(remote));
-    }
-
-    void on_upload_full_ok(FileUploadManager::QueryId query_id, FullRemoteFileLocation remote) final {
-      send_closure(actor_id_, &FileManager::on_upload_full_ok, query_id, std::move(remote));
-    }
-
-    void on_error(FileUploadManager::QueryId query_id, Status status) final {
-      send_closure(actor_id_, &FileManager::on_upload_error, query_id, std::move(status));
-    }
-  };
-
-  class PreliminaryUploadFileCallback;
-
-  Result<FileId> check_input_file_id(FileType type, Result<FileId> result, bool is_encrypted, bool allow_zero,
-                                     bool is_secure) TD_WARN_UNUSED_RESULT;
-
-  FileId do_register_generate(unique_ptr<FullGenerateFileLocation> generate, DialogId owner_dialog_id,
-                              int64 expected_size, string url) TD_WARN_UNUSED_RESULT;
-
-  FileId register_url(string url, FileType file_type, DialogId owner_dialog_id);
-
-  Result<FileId> register_file(FileData &&data, FileLocationSource file_location_source, const char *source);
-
-  using FileNodeId = int32;
-
-  struct DownloadQuery {
-    FileId file_id_;
-    enum class Type : int32 {
-      DownloadWaitFileReference,
-      DownloadReloadDialog,
-      Download,
-      SetContent,
-    } type_;
-  };
-  friend StringBuilder &operator<<(StringBuilder &string_builder, DownloadQuery::Type type);
-
-  struct GenerateQuery {
-    FileId file_id_;
-  };
-
-  struct UploadQuery {
-    FileId file_id_;
-    enum class Type : int32 {
-      UploadByHash,
-      UploadWaitFileReference,
-      Upload,
-    } type_;
-  };
-  friend StringBuilder &operator<<(StringBuilder &string_builder, UploadQuery::Type type);
-
-  enum class FileInfoType : int32 { Local, Generate, Remote };
-
-  class FileInfo {
-    bool is_info_changed_ = false;
-    bool is_database_changed_ = false;
-
-   protected:
-    void on_info_changed() {
-      is_info_changed_ = true;
-    }
-
-    void on_database_changed() {
-      is_database_changed_ = true;
-    }
-
-    void on_changed() {
-      is_info_changed_ = true;
-      is_database_changed_ = true;
-    }
-
-   public:
-    FileInfo() = default;
-    FileInfo(const FileInfo &) = delete;
-    FileInfo &operator=(const FileInfo &) = delete;
-    FileInfo(FileInfo &&) = delete;
-    FileInfo &operator=(FileInfo &&) = delete;
-    virtual ~FileInfo() = default;
-
-    bool need_info_flush() {
-      auto result = is_info_changed_;
-      is_info_changed_ = false;
-      return result;
-    }
-
-    bool need_database_flush() {
-      auto result = is_database_changed_;
-      is_database_changed_ = false;
-      return result;
-    }
-
-    virtual FileInfoType get_file_info_type() const = 0;
-
-    virtual FileType get_file_type() const = 0;
-
-    virtual int64 get_local_size() const = 0;
-
-    virtual int64 get_remote_size() const = 0;
-
-    virtual int64 get_size() const = 0;
-
-    virtual int64 get_expected_size(bool may_guess) const = 0;
-
-    virtual const FullLocalFileLocation *get_local_location() const = 0;
-
-    virtual const FullGenerateFileLocation *get_generate_location() const = 0;
-
-    virtual const FullRemoteFileLocation *get_remote_location() const = 0;
-
-    virtual const string *get_url() const = 0;
-
-    virtual string get_path() const = 0;
-
-    virtual string get_suggested_path() const = 0;
-
-    virtual string get_remote_name() const = 0;
-
-    virtual string get_persistent_file_id() const = 0;
-
-    virtual string get_unique_file_id() const = 0;
-
-    virtual bool can_be_deleted() const = 0;
-
-    virtual void set_size(int64 size) = 0;
-
-    virtual void set_expected_size(int64 expected_size) = 0;
-
-    virtual void delete_file_reference(Slice file_reference) = 0;
-  };
-
-  class FileInfoLocal;
-  class FileInfoGenerate;
-  class FileInfoRemote;
-
-  struct FileIdInfo {
-    FileNodeId node_id_{0};
-    unique_ptr<FileInfo> file_info_;
-    bool pin_flag_{false};
-  };
-
-  struct UserFileDownloadInfo {
-    int64 offset_ = -1;
-    int64 limit_ = -1;
-    vector<Promise<td_api::object_ptr<td_api::file>>> promises_;
-  };
-  FlatHashMap<FileId, UserFileDownloadInfo, FileIdHash> pending_user_file_downloads_;
-
-  class UserDownloadFileCallback;
-
-  std::shared_ptr<UserDownloadFileCallback> user_download_file_callback_;
-
-  struct FileDownloadInfo {
-    int8 download_priority_ = 0;
-    std::shared_ptr<DownloadCallback> download_callback_;
-  };
-  struct FileDownloadRequests {
-    int8 user_download_priority_ = 0;
-    int64 user_offset_ = 0;
-    int64 user_limit_ = 0;
-    FlatHashMap<int64, FileDownloadInfo> internal_downloads_;
-  };
-  FlatHashMap<FileId, FileDownloadRequests, FileIdHash> file_download_requests_;
-
-  struct FileUploadInfo {
-    int8 upload_priority_{0};
-    uint64 upload_order_{0};
-    std::shared_ptr<UploadCallback> upload_callback_;
-  };
-  struct FileUploadRequests {
-    int8 user_upload_priority_{0};
-    FlatHashMap<int64, FileUploadInfo> internal_uploads_;
-  };
-  FlatHashMap<FileId, FileUploadRequests, FileIdHash> file_upload_requests_;
-
-  class ForceUploadActor;
-
-  ActorShared<> parent_;
-  unique_ptr<Context> context_;
-  std::shared_ptr<FileDbInterface> file_db_;
-
-  FileIdInfo *get_file_id_info(FileId file_id);
-
-  struct RemoteInfo {
-    // mutable is set to to enable changing of access hash
-    mutable FullRemoteFileLocation remote_;
-    mutable FileLocationSource file_location_source_;
-    FileId file_id_;
-    bool operator==(const RemoteInfo &other) const {
-      return remote_ == other.remote_;
-    }
-    bool operator<(const RemoteInfo &other) const {
-      return remote_ < other.remote_;
-    }
-  };
-  Enumerator<RemoteInfo> remote_location_info_;
-
-  WaitFreeHashMap<string, FileId> file_hash_to_file_id_;
-
-  std::map<FullRemoteFileLocation, FileId> remote_location_to_file_id_;
-  std::map<FullLocalFileLocation, FileId> local_location_to_file_id_;
-  std::map<FullGenerateFileLocation, FileId> generate_location_to_file_id_;
-
-  WaitFreeVector<unique_ptr<FileIdInfo>> file_id_info_;
-  WaitFreeVector<int32> empty_file_ids_;
-  WaitFreeVector<unique_ptr<FileNode>> file_nodes_;
-  ActorOwn<FileDownloadManager> file_download_manager_;
-  ActorOwn<FileLoadManager> file_load_manager_;
-  ActorOwn<FileUploadManager> file_upload_manager_;
-  ActorOwn<FileGenerateManager> file_generate_manager_;
-
-  Container<DownloadQuery> download_queries_;
-  Container<GenerateQuery> generate_queries_;
-  Container<UploadQuery> upload_queries_;
-
-  static std::atomic<int64> internal_load_id_;
-
-  bool is_closed_ = false;
-
-  std::set<std::string> bad_paths_;
-
-  int file_node_size_warning_exp_ = 10;
-
-  FileId next_file_id();
-  FileNodeId next_file_node_id();
-  int32 next_pmc_file_id();
-  bool try_forget_file_id(FileId file_id);
-
-  void on_user_file_download_finished(FileId file_id);
-
-  void download_impl(FileId file_id, int64 internal_download_id, std::shared_ptr<DownloadCallback> callback,
-                     int32 new_priority, int64 offset, int64 limit, Status check_status,
-                     Promise<td_api::object_ptr<td_api::file>> promise);
-
-  std::shared_ptr<DownloadCallback> extract_download_callback(FileId file_id, int64 internal_download_id);
-
-  void finish_downloads(FileId file_id, const Status &status);
-
-  std::shared_ptr<UploadCallback> extract_upload_callback(FileUploadId file_upload_id);
-
-  void finish_uploads(FileId file_id, const Status &status);
-
-  Status check_local_location(FileNodePtr node, bool skip_file_size_checks);
-  void on_failed_check_local_location(FileNodePtr node);
-  void check_local_location_async(FileNodePtr node, bool skip_file_size_checks, Promise<Unit> promise);
-  void on_check_full_local_location(FileId file_id, LocalFileLocation checked_location,
-                                    Result<FullLocalLocationInfo> r_info, Promise<Unit> promise);
-  void on_check_partial_local_location(FileId file_id, LocalFileLocation checked_location, Result<Unit> result,
-                                       Promise<Unit> promise);
-  void recheck_full_local_location(FullLocalLocationInfo location_info, bool skip_file_size_checks);
-  void on_recheck_full_local_location(FullLocalFileLocation checked_location, Result<FullLocalLocationInfo> r_info);
-
-  static bool try_fix_partial_local_location(FileNodePtr node);
-  void try_flush_node_full(FileNodePtr node, bool new_remote, bool new_local, bool new_generate, FileDbId other_pmc_id);
-  void try_flush_node(FileNodePtr node, const char *source);
-  void try_flush_node_info(FileNodePtr node, const char *source);
-  void try_flush_node_pmc(FileNodePtr node, const char *source);
-  void clear_from_pmc(FileNodePtr node);
-  void flush_to_pmc(FileNodePtr node, bool new_remote, bool new_local, bool new_generate, const char *source);
-  void load_from_pmc(FileNodePtr node, bool new_remote, bool new_local, bool new_generate);
-
-  Result<FileId> from_persistent_id_generated(Slice binary, FileType file_type);
-  Result<FileId> from_persistent_id_v2(Slice binary, FileType file_type);
-  Result<FileId> from_persistent_id_v3(Slice binary, FileType file_type);
-  Result<FileId> from_persistent_id_v23(Slice binary, FileType file_type, int32 version);
-
-  static string fix_file_extension(Slice file_name, Slice file_type, Slice file_extension);
-  string get_file_name(FileType file_type, Slice path);
-
-  ConstFileNodePtr get_file_node(FileId file_id) const {
-    return ConstFileNodePtr{FileNodePtr{file_id, const_cast<FileManager *>(this)}};
-  }
-  FileNodePtr get_file_node(FileId file_id) {
-    return FileNodePtr{file_id, this};
-  }
-  FileNode *get_file_node_raw(FileId file_id, FileNodeId *file_node_id = nullptr);
-
-  FileNodePtr get_sync_file_node(FileId file_id);
-
-  void on_force_reupload_success(FileId file_id);
-
-  void do_cancel_download(FileNodePtr node);
-  void do_cancel_upload(FileNodePtr node);
-  void do_cancel_generate(FileNodePtr node);
-  void run_upload(FileNodePtr node, vector<int> bad_parts);
-  void run_download(FileNodePtr node, bool force_update_priority);
-  void run_generate(FileNodePtr node);
-
-  void on_start_download(FileDownloadManager::QueryId query_id);
-  void on_partial_download(FileDownloadManager::QueryId query_id, PartialLocalFileLocation partial_local, int64 size);
-  void on_download_ok(FileDownloadManager::QueryId query_id, FullLocalFileLocation local, int64 size, bool is_new);
-  void on_download_error(FileDownloadManager::QueryId query_id, Status status);
-  void on_download_error_impl(FileNodePtr node, DownloadQuery::Type type, bool was_active, Status status);
-
-  void on_hash(FileUploadManager::QueryId query_id, string hash);
-  void on_partial_upload(FileUploadManager::QueryId query_id, PartialRemoteFileLocation partial_remote);
-  void on_upload_ok(FileUploadManager::QueryId query_id, FileType file_type, PartialRemoteFileLocation partial_remote);
-  void on_upload_full_ok(FileUploadManager::QueryId query_id, FullRemoteFileLocation remote);
-  void on_upload_error(FileUploadManager::QueryId query_id, Status status);
-  void on_upload_error_impl(FileNodePtr node, UploadQuery::Type type, bool was_active, Status status);
-
-  void on_partial_generate(FileGenerateManager::QueryId, PartialLocalFileLocation partial_local, int64 expected_size);
-  void on_generate_ok(FileGenerateManager::QueryId, FullLocalFileLocation local);
-  void on_generate_error(FileGenerateManager::QueryId query_id, Status status);
-  void on_generate_error_impl(FileNodePtr node, bool was_active, Status status);
-
-  void on_file_load_error(FileNodePtr node, Status status);
-
-  std::pair<DownloadQuery, bool> finish_download_query(FileDownloadManager::QueryId query_id);
-
-  std::pair<GenerateQuery, bool> finish_generate_query(FileGenerateManager::QueryId query_id);
-
-  std::pair<UploadQuery, bool> finish_upload_query(FileUploadManager::QueryId query_id);
-
-  FullRemoteFileLocation *get_remote(int32 key);
-
-  FlatHashSet<FileId, FileIdHash> get_main_file_ids(const vector<FileId> &file_ids);
-
-  void hangup() final;
-  void tear_down() final;
-
-  friend class FileNodePtr;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileManager.hpp b/third-party/td/td/td/telegram/files/FileManager.hpp
deleted file mode 100644
index 9fa96d76fb..0000000000
--- a/third-party/td/td/td/telegram/files/FileManager.hpp
+++ /dev/null
@@ -1,275 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileLocation.hpp"
-#include "td/telegram/files/FileManager.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <limits>
-
-namespace td {
-
-enum class FileStoreType : int32 { Empty, Url, Generate, Local, Remote };
-
-template <class StorerT>
-void FileManager::store_file(FileId file_id, StorerT &storer, int32 ttl) const {
-  auto file_store_type = FileStoreType::Empty;
-  auto file_view = get_file_view(file_id);
-  if (file_view.empty() || ttl <= 0) {
-  } else if (file_view.has_full_remote_location()) {
-    file_store_type = FileStoreType::Remote;
-  } else if (file_view.has_url()) {
-    file_store_type = FileStoreType::Url;
-  } else if (file_view.has_generate_location()) {
-    file_store_type = FileStoreType::Generate;
-  } else if (file_view.has_full_local_location()) {
-    file_store_type = FileStoreType::Local;
-  }
-
-  store(file_store_type, storer);
-
-  bool has_encryption_key = false;
-  bool has_expected_size =
-      file_store_type == FileStoreType::Remote && file_view.size() == 0 && file_view.expected_size() != 0;
-  bool has_secure_key = false;
-  int64 size = 0;
-  bool has_64bit_size = false;
-  if (file_store_type != FileStoreType::Empty) {
-    has_encryption_key = !file_view.empty() && file_view.is_encrypted_secret();
-    has_secure_key = !file_view.empty() && file_view.is_encrypted_secure();
-    if (file_store_type != FileStoreType::Url) {
-      size = has_expected_size || file_store_type == FileStoreType::Generate ? file_view.expected_size()
-                                                                             : file_view.size();
-      has_64bit_size = (size > std::numeric_limits<int32>::max());
-    }
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_encryption_key);
-    STORE_FLAG(has_expected_size);
-    STORE_FLAG(has_secure_key);
-    STORE_FLAG(has_64bit_size);
-    END_STORE_FLAGS();
-  }
-
-  switch (file_store_type) {
-    case FileStoreType::Empty:
-      break;
-    case FileStoreType::Url:
-      store(file_view.get_type(), storer);
-      store(*file_view.get_url(), storer);
-      store(file_view.owner_dialog_id(), storer);
-      break;
-    case FileStoreType::Remote: {
-      const auto *full_remote_location = file_view.get_full_remote_location();
-      store(*full_remote_location, storer);
-      if (has_64bit_size) {
-        store(size, storer);
-      } else {
-        store(narrow_cast<int32>(size), storer);
-      }
-      store(file_view.remote_name(), storer);
-      store(file_view.owner_dialog_id(), storer);
-      break;
-    }
-    case FileStoreType::Local: {
-      store(*file_view.get_full_local_location(), storer);
-      if (has_64bit_size) {
-        store(size, storer);
-      } else {
-        store(narrow_cast<int32>(size), storer);
-      }
-      store(static_cast<int32>(file_view.get_by_hash()), storer);
-      store(file_view.owner_dialog_id(), storer);
-      break;
-    }
-    case FileStoreType::Generate: {
-      auto generate_location = *file_view.get_generate_location();
-      FileId from_file_id;
-      bool have_file_id = false;
-      if (generate_location.conversion_ == "#_file_id#") {
-        break;
-      } else if (begins_with(generate_location.conversion_, "#file_id#")) {
-        // It is not the best possible way to serialize file_id
-        from_file_id =
-            FileId(to_integer<int32>(Slice(generate_location.conversion_).remove_prefix(Slice("#file_id#").size())), 0);
-        generate_location.conversion_ = "#_file_id#";
-        have_file_id = true;
-      }
-      store(generate_location, storer);
-      if (has_64bit_size) {
-        store(size, storer);
-      } else {
-        store(narrow_cast<int32>(size), storer);
-        store(static_cast<int32>(0), storer);  // legacy
-      }
-      store(file_view.owner_dialog_id(), storer);
-
-      if (have_file_id) {
-        store_file(from_file_id, storer, ttl - 1);
-      }
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  if (has_encryption_key || has_secure_key) {
-    store(file_view.encryption_key(), storer);
-  }
-}
-
-template <class ParserT>
-FileId FileManager::parse_file(ParserT &parser) {
-  if (parser.version() < static_cast<int32>(Version::StoreFileId)) {
-    return FileId();
-  }
-
-  FileStoreType file_store_type;
-  parse(file_store_type, parser);
-
-  bool has_encryption_key = false;
-  bool has_expected_size = false;
-  bool has_secure_key = false;
-  bool has_64bit_size = false;
-  if (file_store_type != FileStoreType::Empty) {
-    if (parser.version() >= static_cast<int32>(Version::StoreFileEncryptionKey)) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(has_encryption_key);
-      PARSE_FLAG(has_expected_size);
-      PARSE_FLAG(has_secure_key);
-      PARSE_FLAG(has_64bit_size);
-      END_PARSE_FLAGS();
-    }
-  }
-
-  auto file_id = [&] {
-    switch (file_store_type) {
-      case FileStoreType::Empty:
-        return FileId();
-      case FileStoreType::Remote: {
-        FullRemoteFileLocation full_remote_location;
-        parse(full_remote_location, parser);
-        int64 stored_size;
-        if (has_64bit_size) {
-          parse(stored_size, parser);
-        } else {
-          int32 int_size;
-          parse(int_size, parser);
-          stored_size = int_size;
-          if (stored_size < 0) {
-            stored_size += static_cast<int64>(1) << 32;
-          }
-        }
-        int64 size = has_expected_size ? 0 : stored_size;
-        int64 expected_size = has_expected_size ? stored_size : 0;
-        string name;
-        parse(name, parser);
-        DialogId owner_dialog_id;
-        if (parser.version() >= static_cast<int32>(Version::StoreFileOwnerId)) {
-          parse(owner_dialog_id, parser);
-        }
-        return register_remote(full_remote_location, FileLocationSource::FromBinlog, owner_dialog_id, size,
-                               expected_size, name);
-      }
-      case FileStoreType::Local: {
-        FullLocalFileLocation full_local_location;
-        parse(full_local_location, parser);
-        int64 size;
-        if (has_64bit_size) {
-          parse(size, parser);
-        } else {
-          int32 int_size;
-          parse(int_size, parser);
-          size = int_size;
-          if (size < 0) {
-            size += static_cast<int64>(1) << 32;
-          }
-        }
-        int32 get_by_hash;
-        parse(get_by_hash, parser);
-        DialogId owner_dialog_id;
-        if (parser.version() >= static_cast<int32>(Version::StoreFileOwnerId)) {
-          parse(owner_dialog_id, parser);
-        }
-        auto r_file_id = register_local(full_local_location, owner_dialog_id, size, get_by_hash != 0);
-        if (r_file_id.is_ok()) {
-          return r_file_id.move_as_ok();
-        }
-        LOG(ERROR) << "Can't resend local file " << full_local_location << " of size " << size << " owned by "
-                   << owner_dialog_id;
-        return register_empty(full_local_location.file_type_);
-      }
-      case FileStoreType::Generate: {
-        FullGenerateFileLocation full_generated_location;
-        parse(full_generated_location, parser);
-        int64 expected_size;
-        if (has_64bit_size) {
-          parse(expected_size, parser);
-        } else {
-          int32 int_size;
-          parse(int_size, parser);
-          expected_size = int_size;
-          if (expected_size < 0) {
-            expected_size += static_cast<int64>(1) << 32;
-          }
-          int32 zero;
-          parse(zero, parser);
-        }
-        DialogId owner_dialog_id;
-        if (parser.version() >= static_cast<int32>(Version::StoreFileOwnerId)) {
-          parse(owner_dialog_id, parser);
-        }
-        if (begins_with(full_generated_location.conversion_, "#file_id#")) {
-          LOG(ERROR) << "Can't resend message with '#file_id#...' location";
-          return register_empty(full_generated_location.file_type_);
-        }
-        if (full_generated_location.conversion_ == "#_file_id#") {
-          auto file_id = parse_file(parser);
-          if (file_id.empty()) {
-            return register_empty(full_generated_location.file_type_);
-          }
-          full_generated_location.conversion_ = PSTRING() << "#file_id#" << file_id.get();
-        }
-
-        return register_generate(full_generated_location.file_type_, full_generated_location.original_path_,
-                                 full_generated_location.conversion_, owner_dialog_id, expected_size);
-      }
-      case FileStoreType::Url: {
-        FileType type;
-        string url;
-        parse(type, parser);
-        parse(url, parser);
-        DialogId owner_dialog_id;
-        if (parser.version() >= static_cast<int32>(Version::StoreFileOwnerId)) {
-          parse(owner_dialog_id, parser);
-        }
-        return register_url(url, type, owner_dialog_id);
-      }
-    }
-    return FileId();
-  }();
-
-  if (has_encryption_key || has_secure_key) {
-    auto encryption_key_type = has_encryption_key ? FileEncryptionKey::Type::Secret : FileEncryptionKey::Type::Secure;
-    FileEncryptionKey encryption_key;
-    encryption_key.parse(encryption_key_type, parser);
-    set_encryption_key(file_id, std::move(encryption_key));
-  }
-
-  return file_id;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileSourceId.h b/third-party/td/td/td/telegram/files/FileSourceId.h
deleted file mode 100644
index 1457eed519..0000000000
--- a/third-party/td/td/td/telegram/files/FileSourceId.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-
-namespace td {
-
-class FileSourceId {
-  int32 id = 0;
-
- public:
-  FileSourceId() = default;
-
-  explicit constexpr FileSourceId(int32 file_source_id) : id(file_source_id) {
-  }
-  template <class T1, typename = std::enable_if_t<std::is_convertible<T1, int32>::value>>
-  FileSourceId(T1 file_source_id) = delete;
-
-  bool is_valid() const {
-    return id > 0;
-  }
-
-  int32 get() const {
-    return id;
-  }
-
-  bool operator<(const FileSourceId &other) const {
-    return id < other.id;
-  }
-
-  bool operator==(const FileSourceId &other) const {
-    return id == other.id;
-  }
-
-  bool operator!=(const FileSourceId &other) const {
-    return id != other.id;
-  }
-};
-
-struct FileSourceIdHash {
-  uint32 operator()(FileSourceId file_source_id) const {
-    return Hash<int32>()(file_source_id.get());
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, FileSourceId file_source_id) {
-  return string_builder << "FileSourceId(" << file_source_id.get() << ")";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileSourceId.hpp b/third-party/td/td/td/telegram/files/FileSourceId.hpp
deleted file mode 100644
index f0151f315a..0000000000
--- a/third-party/td/td/td/telegram/files/FileSourceId.hpp
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/FileReferenceManager.h"
-#include "td/telegram/FileReferenceManager.hpp"
-#include "td/telegram/files/FileSourceId.h"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-template <class StorerT>
-void store(FileSourceId file_source_id, StorerT &storer) {
-  Td *td = storer.context()->td().get_actor_unsafe();
-  td->file_reference_manager_->store_file_source(file_source_id, storer);
-}
-
-template <class ParserT>
-void parse(FileSourceId &file_source_id, ParserT &parser) {
-  Td *td = parser.context()->td().get_actor_unsafe();
-  file_source_id = td->file_reference_manager_->parse_file_source(td, parser);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileStats.cpp b/third-party/td/td/td/telegram/files/FileStats.cpp
deleted file mode 100644
index fd80c49bf5..0000000000
--- a/third-party/td/td/td/telegram/files/FileStats.cpp
+++ /dev/null
@@ -1,256 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileStats.h"
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/format.h"
-#include "td/utils/misc.h"
-
-#include <algorithm>
-#include <utility>
-
-namespace td {
-
-tl_object_ptr<td_api::storageStatisticsFast> FileStatsFast::get_storage_statistics_fast_object() const {
-  return make_tl_object<td_api::storageStatisticsFast>(size, count, database_size, language_pack_database_size,
-                                                       log_size);
-}
-
-void FileStats::add(StatByType &by_type, FileType file_type, int64 size) {
-  auto pos = static_cast<size_t>(file_type);
-  CHECK(pos < stat_by_type_.size());
-  by_type[pos].size += size;
-  by_type[pos].cnt++;
-}
-
-void FileStats::add_impl(const FullFileInfo &info) {
-  if (split_by_owner_dialog_id_) {
-    add(stat_by_owner_dialog_id_[info.owner_dialog_id], info.file_type, info.size);
-  } else {
-    add(stat_by_type_, info.file_type, info.size);
-  }
-}
-
-void FileStats::add_copy(const FullFileInfo &info) {
-  add_impl(info);
-  if (need_all_files_) {
-    all_files_.push_back(info);
-  }
-}
-
-void FileStats::add(FullFileInfo &&info) {
-  add_impl(info);
-  if (need_all_files_) {
-    all_files_.push_back(std::move(info));
-  }
-}
-
-FileTypeStat FileStats::get_nontemp_stat(const FileStats::StatByType &by_type) {
-  FileTypeStat stat;
-  for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-    if (FileType(i) != FileType::Temp) {
-      stat.size += by_type[i].size;
-      stat.cnt += by_type[i].cnt;
-    }
-  }
-  return stat;
-}
-
-FileTypeStat FileStats::get_total_nontemp_stat() const {
-  if (!split_by_owner_dialog_id_) {
-    return get_nontemp_stat(stat_by_type_);
-  }
-  FileTypeStat stat;
-  for (auto &dialog : stat_by_owner_dialog_id_) {
-    auto tmp = get_nontemp_stat(dialog.second);
-    stat.size += tmp.size;
-    stat.cnt += tmp.cnt;
-  }
-  return stat;
-}
-
-void FileStats::apply_dialog_limit(int32 limit) {
-  if (limit == -1) {
-    return;
-  }
-  if (!split_by_owner_dialog_id_) {
-    return;
-  }
-
-  std::vector<std::pair<int64, DialogId>> dialogs;
-  for (auto &dialog : stat_by_owner_dialog_id_) {
-    if (!dialog.first.is_valid()) {
-      continue;
-    }
-    int64 size = 0;
-    for (auto &it : dialog.second) {
-      size += it.size;
-    }
-    dialogs.emplace_back(size, dialog.first);
-  }
-  size_t prefix = dialogs.size();
-  if (prefix > static_cast<size_t>(limit)) {
-    prefix = static_cast<size_t>(limit);
-  }
-  std::partial_sort(dialogs.begin(), dialogs.begin() + prefix, dialogs.end(),
-                    [](const auto &x, const auto &y) { return x.first > y.first; });
-  dialogs.resize(prefix);
-
-  apply_dialog_ids(transform(dialogs, [](const auto &dialog) { return dialog.second; }));
-}
-
-void FileStats::apply_dialog_ids(const vector<DialogId> &dialog_ids) {
-  FlatHashSet<DialogId, DialogIdHash> all_dialog_ids;
-  for (auto &dialog_id : dialog_ids) {
-    CHECK(dialog_id.is_valid());
-    all_dialog_ids.insert(dialog_id);
-  }
-  StatByType other_stats;
-  bool other_flag = false;
-  table_remove_if(stat_by_owner_dialog_id_, [&](const auto &it) {
-    if (!all_dialog_ids.count(it.first)) {
-      for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-        other_stats[i].size += it.second[i].size;
-        other_stats[i].cnt += it.second[i].cnt;
-      }
-      other_flag = true;
-      return true;
-    }
-    return false;
-  });
-
-  if (other_flag) {
-    DialogId other_dialog_id;  // prevents MSVC warning C4709: comma operator within array index expression
-    stat_by_owner_dialog_id_[other_dialog_id] = other_stats;
-  }
-}
-
-td_api::object_ptr<td_api::storageStatisticsByChat> FileStats::get_storage_statistics_by_chat_object(
-    DialogId dialog_id, const FileStats::StatByType &stat_by_type) {
-  auto stats = make_tl_object<td_api::storageStatisticsByChat>(dialog_id.get(), 0, 0, Auto());
-  FileStats::StatByType aggregated_stats;
-  for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-    auto file_type = narrow_cast<size_t>(get_main_file_type(static_cast<FileType>(i)));
-    aggregated_stats[file_type].size += stat_by_type[i].size;
-    aggregated_stats[file_type].cnt += stat_by_type[i].cnt;
-  }
-
-  for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-    auto size = aggregated_stats[i].size;
-    auto cnt = aggregated_stats[i].cnt;
-
-    if (size == 0) {
-      continue;
-    }
-
-    auto file_type = static_cast<FileType>(i);
-    stats->size_ += size;
-    stats->count_ += cnt;
-    stats->by_file_type_.push_back(
-        make_tl_object<td_api::storageStatisticsByFileType>(get_file_type_object(file_type), size, cnt));
-  }
-  return stats;
-}
-
-tl_object_ptr<td_api::storageStatistics> FileStats::get_storage_statistics_object() const {
-  auto stats = make_tl_object<td_api::storageStatistics>(0, 0, Auto());
-  if (!split_by_owner_dialog_id_) {
-    stats->by_chat_.reserve(1);
-    stats->by_chat_.push_back(get_storage_statistics_by_chat_object(DialogId(), stat_by_type_));
-  } else {
-    stats->by_chat_.reserve(stat_by_owner_dialog_id_.size());
-    for (auto &by_dialog : stat_by_owner_dialog_id_) {
-      stats->by_chat_.push_back(get_storage_statistics_by_chat_object(by_dialog.first, by_dialog.second));
-    }
-    std::sort(stats->by_chat_.begin(), stats->by_chat_.end(), [](const auto &x, const auto &y) {
-      if (x->chat_id_ == 0 || y->chat_id_ == 0) {
-        return (x->chat_id_ == 0) < (y->chat_id_ == 0);
-      }
-      return x->size_ > y->size_;
-    });
-  }
-  for (const auto &by_dialog : stats->by_chat_) {
-    stats->size_ += by_dialog->size_;
-    stats->count_ += by_dialog->count_;
-  }
-  return stats;
-}
-
-vector<DialogId> FileStats::get_dialog_ids() const {
-  vector<DialogId> res;
-  if (!split_by_owner_dialog_id_) {
-    return res;
-  }
-  res.reserve(stat_by_owner_dialog_id_.size());
-  for (auto &by_dialog : stat_by_owner_dialog_id_) {
-    if (by_dialog.first.is_valid()) {
-      res.push_back(by_dialog.first);
-    }
-  }
-  return res;
-}
-
-vector<FullFileInfo> FileStats::get_all_files() {
-  return std::move(all_files_);
-}
-
-static StringBuilder &operator<<(StringBuilder &sb, const FileTypeStat &stat) {
-  return sb << tag("size", format::as_size(stat.size)) << tag("count", stat.cnt);
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const FileStats &file_stats) {
-  if (!file_stats.split_by_owner_dialog_id_) {
-    FileTypeStat total_stat;
-    for (auto &type_stat : file_stats.stat_by_type_) {
-      total_stat.size += type_stat.size;
-      total_stat.cnt += type_stat.cnt;
-    }
-
-    sb << "[FileStat " << tag("total", total_stat);
-    for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-      if (file_stats.stat_by_type_[i].size != 0) {
-        sb << '[' << FileType(i) << ':' << file_stats.stat_by_type_[i] << ']';
-      }
-    }
-    sb << ']';
-  } else {
-    {
-      FileTypeStat total_stat;
-      for (auto &by_type : file_stats.stat_by_owner_dialog_id_) {
-        for (auto &type_stat : by_type.second) {
-          total_stat.size += type_stat.size;
-          total_stat.cnt += type_stat.cnt;
-        }
-      }
-      sb << "[FileStat " << tag("total", total_stat);
-    }
-    for (auto &by_type : file_stats.stat_by_owner_dialog_id_) {
-      FileTypeStat dialog_stat;
-      for (auto &type_stat : by_type.second) {
-        dialog_stat.size += type_stat.size;
-        dialog_stat.cnt += type_stat.cnt;
-      }
-
-      sb << "[FileStat " << tag("owner_dialog_id", by_type.first) << tag("total", dialog_stat);
-      for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-        if (by_type.second[i].size != 0) {
-          sb << '[' << FileType(i) << ':' << by_type.second[i] << ']';
-        }
-      }
-      sb << ']';
-    }
-    sb << ']';
-  }
-
-  return sb;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileStats.h b/third-party/td/td/td/telegram/files/FileStats.h
deleted file mode 100644
index e626fe271e..0000000000
--- a/third-party/td/td/td/telegram/files/FileStats.h
+++ /dev/null
@@ -1,114 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileType.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-#include <array>
-#include <unordered_map>
-
-namespace td {
-
-namespace td_api {
-class storageStatistics;
-class storageStatisticsFast;
-}  // namespace td_api
-
-struct FileTypeStat {
-  int64 size{0};
-  int32 cnt{0};
-};
-
-template <class StorerT>
-void store(const FileTypeStat &stat, StorerT &storer) {
-  using ::td::store;
-  store(stat.size, storer);
-  store(stat.cnt, storer);
-}
-template <class ParserT>
-void parse(FileTypeStat &stat, ParserT &parser) {
-  using ::td::parse;
-  parse(stat.size, parser);
-  parse(stat.cnt, parser);
-}
-
-struct FullFileInfo {
-  FileType file_type;
-  string path;
-  DialogId owner_dialog_id;
-  int64 size;
-  uint64 atime_nsec;
-  uint64 mtime_nsec;
-};
-
-struct FileStatsFast {
-  int64 size{0};
-  int32 count{0};
-  int64 database_size{0};
-  int64 language_pack_database_size{0};
-  int64 log_size{0};
-  FileStatsFast(int64 size, int32 count, int64 database_size, int64 language_pack_database_size, int64 log_size)
-      : size(size)
-      , count(count)
-      , database_size(database_size)
-      , language_pack_database_size(language_pack_database_size)
-      , log_size(log_size) {
-  }
-  tl_object_ptr<td_api::storageStatisticsFast> get_storage_statistics_fast_object() const;
-};
-
-class FileStats {
-  bool need_all_files_{false};
-  bool split_by_owner_dialog_id_{false};
-
-  using StatByType = std::array<FileTypeStat, MAX_FILE_TYPE>;
-
-  StatByType stat_by_type_;
-  std::unordered_map<DialogId, StatByType, DialogIdHash> stat_by_owner_dialog_id_;
-  vector<FullFileInfo> all_files_;
-
-  void add_impl(const FullFileInfo &info);
-
-  void add(StatByType &by_type, FileType file_type, int64 size);
-
-  static FileTypeStat get_nontemp_stat(const StatByType &by_type);
-
-  static td_api::object_ptr<td_api::storageStatisticsByChat> get_storage_statistics_by_chat_object(
-      DialogId dialog_id, const StatByType &stat_by_type);
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const FileStats &file_stats);
-
- public:
-  FileStats(bool need_all_files, bool split_by_owner_dialog_id)
-      : need_all_files_(need_all_files), split_by_owner_dialog_id_(split_by_owner_dialog_id) {
-  }
-
-  void add_copy(const FullFileInfo &info);
-
-  void add(FullFileInfo &&info);
-
-  void apply_dialog_limit(int32 limit);
-
-  void apply_dialog_ids(const vector<DialogId> &dialog_ids);
-
-  tl_object_ptr<td_api::storageStatistics> get_storage_statistics_object() const;
-
-  vector<DialogId> get_dialog_ids() const;
-
-  FileTypeStat get_total_nontemp_stat() const;
-
-  vector<FullFileInfo> get_all_files();
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const FileStats &file_stats);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileStatsWorker.cpp b/third-party/td/td/td/telegram/files/FileStatsWorker.cpp
deleted file mode 100644
index 23ab14330f..0000000000
--- a/third-party/td/td/td/telegram/files/FileStatsWorker.cpp
+++ /dev/null
@@ -1,225 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileStatsWorker.h"
-
-#include "td/telegram/DialogId.h"
-#include "td/telegram/files/FileData.h"
-#include "td/telegram/files/FileDb.h"
-#include "td/telegram/files/FileLoaderUtils.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/db/SqliteKeyValue.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_parsers.h"
-
-#include <unordered_map>
-#include <unordered_set>
-
-namespace td {
-namespace {
-// Performance ideas:
-// - use slice instead of string
-// - use arena memory allocator
-// - store FileType or dir, no both
-// - store dir relative to G()->files_dir()
-
-struct DbFileInfo {
-  FileType file_type;
-  string path;
-  DialogId owner_dialog_id;
-  int64 size;
-};
-
-template <class CallbackT>
-void scan_db(CancellationToken &token, CallbackT &&callback) {
-  G()->td_db()->get_file_db_shared()->pmc().get_by_range("file0", "file:", [&](Slice key, Slice value) {
-    if (token) {
-      return false;
-    }
-    // skip reference to other data
-    if (value.substr(0, 2) == "@@") {
-      return true;
-    }
-    log_event::WithVersion<TlParser> parser(value);
-    FileData data;
-    data.parse(parser, false);
-    if (parser.get_status().is_error()) {
-      LOG(ERROR) << "Invalid FileData in the database " << tag("value", format::escaped(value));
-      return true;
-    }
-    DbFileInfo info;
-    if (data.local_.type() == LocalFileLocation::Type::Full) {
-      info.file_type = data.local_.full().file_type_;
-      info.path = data.local_.full().path_;
-    } else if (data.local_.type() == LocalFileLocation::Type::Partial) {
-      info.file_type = data.local_.partial().file_type_;
-      info.path = data.local_.partial().path_;
-    } else {
-      return true;
-    }
-    PathView path_view(info.path);
-    if (path_view.is_relative()) {
-      info.path = PSTRING() << get_files_base_dir(info.file_type) << info.path;
-    }
-    // LOG(INFO) << "Found file in the database: " << data << " " << info.path;
-    info.owner_dialog_id = data.owner_dialog_id_;
-    info.size = data.size_;
-    if (info.size == 0 && data.local_.type() == LocalFileLocation::Type::Full) {
-      LOG(ERROR) << "Unknown size in the database";
-      return true;
-    }
-    callback(info);
-    return true;
-  });
-}
-
-struct FsFileInfo {
-  FileType file_type;
-  string path;
-  int64 size;
-  uint64 atime_nsec;
-  uint64 mtime_nsec;
-};
-
-template <class CallbackT>
-void scan_fs(CancellationToken &token, CallbackT &&callback) {
-  std::unordered_set<string, Hash<string>> scanned_file_dirs;
-  auto scan_dir = [&](FileType file_type, const string &file_dir) {
-    if (!scanned_file_dirs.insert(file_dir).second) {
-      return;
-    }
-    LOG(INFO) << "Scanning directory " << file_dir;
-    walk_path(file_dir, [&](CSlice path, WalkPath::Type type) {
-      if (token) {
-        return WalkPath::Action::Abort;
-      }
-      if (type != WalkPath::Type::RegularFile) {
-        return WalkPath::Action::Continue;
-      }
-      auto r_stat = stat(path);
-      if (r_stat.is_error()) {
-        LOG(WARNING) << "Stat in files gc failed: " << r_stat.error();
-        return WalkPath::Action::Continue;
-      }
-      auto stat = r_stat.move_as_ok();
-      if (stat.size_ == 0 && ends_with(path, "/.nomedia")) {
-        // skip .nomedia file
-        return WalkPath::Action::Continue;
-      }
-
-      FsFileInfo info;
-      info.path = path.str();
-      info.size = stat.real_size_;
-      info.file_type = guess_file_type_by_path(path, file_type);
-      info.atime_nsec = stat.atime_nsec_;
-      info.mtime_nsec = stat.mtime_nsec_;
-      callback(info);
-      return WalkPath::Action::Continue;
-    }).ignore();
-  };
-  for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-    auto file_type = static_cast<FileType>(i);
-    scan_dir(get_main_file_type(file_type), get_files_dir(file_type));
-  }
-  scan_dir(get_main_file_type(FileType::Temp), get_files_temp_dir(FileType::SecureDecrypted));
-  scan_dir(get_main_file_type(FileType::Temp), get_files_temp_dir(FileType::Video));
-}
-}  // namespace
-
-void FileStatsWorker::get_stats(bool need_all_files, bool split_by_owner_dialog_id, Promise<FileStats> promise) {
-  if (!G()->use_file_database()) {
-    FileStats file_stats(need_all_files, false);
-    auto start = Time::now();
-    scan_fs(token_, [&](FsFileInfo &fs_info) {
-      FullFileInfo info;
-      info.file_type = fs_info.file_type;
-      info.path = std::move(fs_info.path);
-      info.size = fs_info.size;
-      info.atime_nsec = fs_info.atime_nsec;
-      info.mtime_nsec = fs_info.mtime_nsec;
-      file_stats.add(std::move(info));
-    });
-    auto passed = Time::now() - start;
-    LOG_IF(INFO, passed > 0.5) << "Get file stats took: " << format::as_time(passed);
-    if (token_) {
-      return promise.set_error(Global::request_aborted_error());
-    }
-    promise.set_value(std::move(file_stats));
-  } else {
-    auto start = Time::now();
-
-    vector<FullFileInfo> full_infos;
-    scan_fs(token_, [&](FsFileInfo &fs_info) {
-      FullFileInfo info;
-      info.file_type = fs_info.file_type;
-      info.path = std::move(fs_info.path);
-      info.size = fs_info.size;
-      info.atime_nsec = fs_info.atime_nsec;
-      info.mtime_nsec = fs_info.mtime_nsec;
-
-      // LOG(INFO) << "Found file of size " << info.size << " at " << info.path;
-
-      full_infos.push_back(std::move(info));
-    });
-
-    if (token_) {
-      return promise.set_error(Global::request_aborted_error());
-    }
-
-    std::unordered_map<int64, size_t, Hash<int64>> hash_to_pos;
-    size_t pos = 0;
-    for (auto &full_info : full_infos) {
-      hash_to_pos[Hash<string>()(full_info.path)] = pos;
-      pos++;
-      if (token_) {
-        return promise.set_error(Global::request_aborted_error());
-      }
-    }
-    scan_db(token_, [&](DbFileInfo &db_info) {
-      auto it = hash_to_pos.find(Hash<string>()(db_info.path));
-      if (it == hash_to_pos.end()) {
-        return;
-      }
-      // LOG(INFO) << "Match! " << db_info.path << " from " << db_info.owner_dialog_id;
-      CHECK(it->second < full_infos.size());
-      auto &full_info = full_infos[it->second];
-      full_info.owner_dialog_id = db_info.owner_dialog_id;
-      full_info.file_type = db_info.file_type;  // database file_type is the correct one
-    });
-    if (token_) {
-      return promise.set_error(Global::request_aborted_error());
-    }
-
-    FileStats file_stats(need_all_files, split_by_owner_dialog_id);
-    for (auto &full_info : full_infos) {
-      file_stats.add(std::move(full_info));
-      if (token_) {
-        return promise.set_error(Global::request_aborted_error());
-      }
-    }
-    auto passed = Time::now() - start;
-    LOG_IF(INFO, passed > 0.5) << "Get file stats took: " << format::as_time(passed);
-    promise.set_value(std::move(file_stats));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileStatsWorker.h b/third-party/td/td/td/telegram/files/FileStatsWorker.h
deleted file mode 100644
index a0629ba395..0000000000
--- a/third-party/td/td/td/telegram/files/FileStatsWorker.h
+++ /dev/null
@@ -1,30 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileStats.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/CancellationToken.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class FileStatsWorker final : public Actor {
- public:
-  FileStatsWorker(ActorShared<> parent, CancellationToken token)
-      : parent_(std::move(parent)), token_(std::move(token)) {
-  }
-  void get_stats(bool need_all_files, bool split_by_owner_dialog_id, Promise<FileStats> promise);
-
- private:
-  ActorShared<> parent_;
-  CancellationToken token_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileType.cpp b/third-party/td/td/td/telegram/files/FileType.cpp
deleted file mode 100644
index 500aa0f2ee..0000000000
--- a/third-party/td/td/td/telegram/files/FileType.cpp
+++ /dev/null
@@ -1,403 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileType.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-
-namespace td {
-
-FileType get_file_type(const td_api::FileType &file_type) {
-  switch (file_type.get_id()) {
-    case td_api::fileTypeThumbnail::ID:
-      return FileType::Thumbnail;
-    case td_api::fileTypeProfilePhoto::ID:
-      return FileType::ProfilePhoto;
-    case td_api::fileTypePhoto::ID:
-      return FileType::Photo;
-    case td_api::fileTypePhotoStory::ID:
-      return FileType::PhotoStory;
-    case td_api::fileTypeVoiceNote::ID:
-      return FileType::VoiceNote;
-    case td_api::fileTypeVideo::ID:
-      return FileType::Video;
-    case td_api::fileTypeVideoStory::ID:
-      return FileType::VideoStory;
-    case td_api::fileTypeDocument::ID:
-      return FileType::Document;
-    case td_api::fileTypeSecret::ID:
-      return FileType::Encrypted;
-    case td_api::fileTypeUnknown::ID:
-      return FileType::Temp;
-    case td_api::fileTypeSticker::ID:
-      return FileType::Sticker;
-    case td_api::fileTypeAudio::ID:
-      return FileType::Audio;
-    case td_api::fileTypeAnimation::ID:
-      return FileType::Animation;
-    case td_api::fileTypeSecretThumbnail::ID:
-      return FileType::EncryptedThumbnail;
-    case td_api::fileTypeWallpaper::ID:
-      return FileType::Background;
-    case td_api::fileTypeVideoNote::ID:
-      return FileType::VideoNote;
-    case td_api::fileTypeSecure::ID:
-      return FileType::SecureEncrypted;
-    case td_api::fileTypeNotificationSound::ID:
-      return FileType::Ringtone;
-    case td_api::fileTypeSelfDestructingPhoto::ID:
-      return FileType::SelfDestructingPhoto;
-    case td_api::fileTypeSelfDestructingVideo::ID:
-      return FileType::SelfDestructingVideo;
-    case td_api::fileTypeSelfDestructingVideoNote::ID:
-      return FileType::SelfDestructingVideoNote;
-    case td_api::fileTypeSelfDestructingVoiceNote::ID:
-      return FileType::SelfDestructingVoiceNote;
-    case td_api::fileTypeNone::ID:
-      return FileType::None;
-    default:
-      UNREACHABLE();
-      return FileType::None;
-  }
-}
-
-tl_object_ptr<td_api::FileType> get_file_type_object(FileType file_type) {
-  switch (file_type) {
-    case FileType::Thumbnail:
-      return make_tl_object<td_api::fileTypeThumbnail>();
-    case FileType::ProfilePhoto:
-      return make_tl_object<td_api::fileTypeProfilePhoto>();
-    case FileType::Photo:
-      return make_tl_object<td_api::fileTypePhoto>();
-    case FileType::VoiceNote:
-      return make_tl_object<td_api::fileTypeVoiceNote>();
-    case FileType::Video:
-      return make_tl_object<td_api::fileTypeVideo>();
-    case FileType::Document:
-      return make_tl_object<td_api::fileTypeDocument>();
-    case FileType::Encrypted:
-      return make_tl_object<td_api::fileTypeSecret>();
-    case FileType::Temp:
-      return make_tl_object<td_api::fileTypeUnknown>();
-    case FileType::Sticker:
-      return make_tl_object<td_api::fileTypeSticker>();
-    case FileType::Audio:
-      return make_tl_object<td_api::fileTypeAudio>();
-    case FileType::Animation:
-      return make_tl_object<td_api::fileTypeAnimation>();
-    case FileType::EncryptedThumbnail:
-      return make_tl_object<td_api::fileTypeSecretThumbnail>();
-    case FileType::Wallpaper:
-      return make_tl_object<td_api::fileTypeWallpaper>();
-    case FileType::VideoNote:
-      return make_tl_object<td_api::fileTypeVideoNote>();
-    case FileType::SecureEncrypted:
-      return make_tl_object<td_api::fileTypeSecure>();
-    case FileType::SecureDecrypted:
-      UNREACHABLE();
-      return make_tl_object<td_api::fileTypeSecure>();
-    case FileType::Background:
-      return make_tl_object<td_api::fileTypeWallpaper>();
-    case FileType::DocumentAsFile:
-      return make_tl_object<td_api::fileTypeDocument>();
-    case FileType::Ringtone:
-      return make_tl_object<td_api::fileTypeNotificationSound>();
-    case FileType::CallLog:
-      return make_tl_object<td_api::fileTypeDocument>();
-    case FileType::PhotoStory:
-      return make_tl_object<td_api::fileTypePhotoStory>();
-    case FileType::VideoStory:
-      return make_tl_object<td_api::fileTypeVideoStory>();
-    case FileType::SelfDestructingPhoto:
-      return make_tl_object<td_api::fileTypeSelfDestructingPhoto>();
-    case FileType::SelfDestructingVideo:
-      return make_tl_object<td_api::fileTypeSelfDestructingVideo>();
-    case FileType::SelfDestructingVideoNote:
-      return make_tl_object<td_api::fileTypeSelfDestructingVideoNote>();
-    case FileType::SelfDestructingVoiceNote:
-      return make_tl_object<td_api::fileTypeSelfDestructingVoiceNote>();
-    case FileType::None:
-      return make_tl_object<td_api::fileTypeNone>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-FileType get_main_file_type(FileType file_type) {
-  switch (file_type) {
-    case FileType::Wallpaper:
-      return FileType::Background;
-    case FileType::SecureDecrypted:
-      return FileType::SecureEncrypted;
-    case FileType::DocumentAsFile:
-      return FileType::Document;
-    case FileType::CallLog:
-      return FileType::Document;
-    default:
-      return file_type;
-  }
-}
-
-CSlice get_file_type_name(FileType file_type) {
-  switch (get_main_file_type(file_type)) {
-    case FileType::Thumbnail:
-      return CSlice("thumbnails");
-    case FileType::ProfilePhoto:
-      return CSlice("profile_photos");
-    case FileType::Photo:
-    case FileType::SelfDestructingPhoto:
-      return CSlice("photos");
-    case FileType::VoiceNote:
-    case FileType::SelfDestructingVoiceNote:
-      return CSlice("voice");
-    case FileType::Video:
-    case FileType::SelfDestructingVideo:
-      return CSlice("videos");
-    case FileType::Document:
-      return CSlice("documents");
-    case FileType::Encrypted:
-      return CSlice("secret");
-    case FileType::Temp:
-      return CSlice("temp");
-    case FileType::Sticker:
-      return CSlice("stickers");
-    case FileType::Audio:
-      return CSlice("music");
-    case FileType::Animation:
-      return CSlice("animations");
-    case FileType::EncryptedThumbnail:
-      return CSlice("secret_thumbnails");
-    case FileType::VideoNote:
-    case FileType::SelfDestructingVideoNote:
-      return CSlice("video_notes");
-    case FileType::SecureEncrypted:
-      return CSlice("passport");
-    case FileType::Background:
-      return CSlice("wallpapers");
-    case FileType::Ringtone:
-      return CSlice("notification_sounds");
-    case FileType::PhotoStory:
-      return CSlice("stories");
-    case FileType::VideoStory:
-      return CSlice("stories");
-    default:
-      UNREACHABLE();
-      return CSlice("none");
-  }
-}
-
-CSlice get_file_type_unique_name(FileType file_type) {
-  if (file_type == FileType::VideoStory) {
-    return CSlice("video_stories");
-  }
-  return get_file_type_name(file_type);
-}
-
-FileTypeClass get_file_type_class(FileType file_type) {
-  switch (file_type) {
-    case FileType::Photo:
-    case FileType::ProfilePhoto:
-    case FileType::Thumbnail:
-    case FileType::EncryptedThumbnail:
-    case FileType::Wallpaper:
-    case FileType::PhotoStory:
-    case FileType::SelfDestructingPhoto:
-      return FileTypeClass::Photo;
-    case FileType::Video:
-    case FileType::VoiceNote:
-    case FileType::Document:
-    case FileType::Sticker:
-    case FileType::Audio:
-    case FileType::Animation:
-    case FileType::VideoNote:
-    case FileType::Background:
-    case FileType::DocumentAsFile:
-    case FileType::Ringtone:
-    case FileType::CallLog:
-    case FileType::VideoStory:
-    case FileType::SelfDestructingVideo:
-    case FileType::SelfDestructingVideoNote:
-    case FileType::SelfDestructingVoiceNote:
-      return FileTypeClass::Document;
-    case FileType::SecureDecrypted:
-    case FileType::SecureEncrypted:
-      return FileTypeClass::Secure;
-    case FileType::Encrypted:
-      return FileTypeClass::Encrypted;
-    case FileType::Temp:
-      return FileTypeClass::Temp;
-    case FileType::None:
-    case FileType::Size:
-    default:
-      UNREACHABLE();
-      return FileTypeClass::Temp;
-  }
-}
-
-bool is_document_file_type(FileType file_type) {
-  return get_file_type_class(file_type) == FileTypeClass::Document;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, FileType file_type) {
-  switch (file_type) {
-    case FileType::Thumbnail:
-      return string_builder << "Thumbnail";
-    case FileType::ProfilePhoto:
-      return string_builder << "ChatPhoto";
-    case FileType::Photo:
-      return string_builder << "Photo";
-    case FileType::VoiceNote:
-      return string_builder << "VoiceNote";
-    case FileType::Video:
-      return string_builder << "Video";
-    case FileType::Document:
-      return string_builder << "Document";
-    case FileType::Encrypted:
-      return string_builder << "Secret";
-    case FileType::Temp:
-      return string_builder << "Temp";
-    case FileType::Sticker:
-      return string_builder << "Sticker";
-    case FileType::Audio:
-      return string_builder << "Audio";
-    case FileType::Animation:
-      return string_builder << "Animation";
-    case FileType::EncryptedThumbnail:
-      return string_builder << "SecretThumbnail";
-    case FileType::Wallpaper:
-      return string_builder << "Wallpaper";
-    case FileType::VideoNote:
-      return string_builder << "VideoNote";
-    case FileType::SecureDecrypted:
-      return string_builder << "Passport";
-    case FileType::SecureEncrypted:
-      return string_builder << "Passport";
-    case FileType::Background:
-      return string_builder << "Background";
-    case FileType::DocumentAsFile:
-      return string_builder << "DocumentAsFile";
-    case FileType::Ringtone:
-      return string_builder << "NotificationSound";
-    case FileType::CallLog:
-      return string_builder << "CallLog";
-    case FileType::PhotoStory:
-      return string_builder << "PhotoStory";
-    case FileType::VideoStory:
-      return string_builder << "VideoStory";
-    case FileType::SelfDestructingPhoto:
-      return string_builder << "SelfDestructingPhoto";
-    case FileType::SelfDestructingVideo:
-      return string_builder << "SelfDestructingVideo";
-    case FileType::SelfDestructingVideoNote:
-      return string_builder << "SelfDestructingVideoNote";
-    case FileType::SelfDestructingVoiceNote:
-      return string_builder << "SelfDestructingVoiceNote";
-    case FileType::Size:
-    case FileType::None:
-    default:
-      return string_builder << "<invalid>";
-  }
-}
-
-FileDirType get_file_dir_type(FileType file_type) {
-  switch (file_type) {
-    case FileType::Thumbnail:
-    case FileType::ProfilePhoto:
-    case FileType::Encrypted:
-    case FileType::Sticker:
-    case FileType::Temp:
-    case FileType::Wallpaper:
-    case FileType::EncryptedThumbnail:
-    case FileType::SecureEncrypted:
-    case FileType::SecureDecrypted:
-    case FileType::Background:
-    case FileType::Ringtone:
-    case FileType::PhotoStory:
-    case FileType::VideoStory:
-    case FileType::SelfDestructingPhoto:
-    case FileType::SelfDestructingVideo:
-    case FileType::SelfDestructingVideoNote:
-    case FileType::SelfDestructingVoiceNote:
-      return FileDirType::Secure;
-    default:
-      return FileDirType::Common;
-  }
-}
-
-bool is_file_big(FileType file_type, int64 expected_size) {
-  if (get_file_type_class(file_type) == FileTypeClass::Photo) {
-    return false;
-  }
-  switch (file_type) {
-    case FileType::VideoNote:
-    case FileType::Ringtone:
-    case FileType::CallLog:
-    case FileType::VideoStory:
-      return false;
-    default:
-      break;
-  }
-
-  constexpr int64 SMALL_FILE_MAX_SIZE = 10 << 20;
-  return expected_size > SMALL_FILE_MAX_SIZE;
-}
-
-bool can_reuse_remote_file(FileType file_type) {
-  switch (file_type) {
-    case FileType::Thumbnail:
-    case FileType::EncryptedThumbnail:
-    case FileType::Background:
-    case FileType::CallLog:
-    case FileType::PhotoStory:
-    case FileType::VideoStory:
-    case FileType::SelfDestructingPhoto:
-    case FileType::SelfDestructingVideo:
-    case FileType::SelfDestructingVideoNote:
-    case FileType::SelfDestructingVoiceNote:
-      return false;
-    default:
-      return true;
-  }
-}
-
-FileType guess_file_type_by_path(Slice file_path, FileType default_file_type) {
-  if (default_file_type != FileType::None) {
-    if (default_file_type == FileType::PhotoStory && ends_with(file_path, ".mp4")) {
-      return FileType::VideoStory;
-    }
-    return default_file_type;
-  }
-
-  PathView path_view(file_path);
-  auto file_name = path_view.file_name();
-  auto extension = path_view.extension();
-  if (extension == "jpg" || extension == "jpeg") {
-    return FileType::Photo;
-  }
-  if (extension == "ogg" || extension == "oga" || extension == "opus") {
-    return FileType::VoiceNote;
-  }
-  if (extension == "3gp" || extension == "mov") {
-    return FileType::Video;
-  }
-  if (extension == "mp3" || extension == "mpeg3" || extension == "m4a") {
-    return FileType::Audio;
-  }
-  if (extension == "webp" || extension == "tgs" || extension == "webm") {
-    return FileType::Sticker;
-  }
-  if (extension == "gif") {
-    return FileType::Animation;
-  }
-  if (extension == "mp4" || extension == "mpeg4") {
-    return to_lower(file_name).find("-gif-") != string::npos ? FileType::Animation : FileType::Video;
-  }
-  return FileType::Document;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileType.h b/third-party/td/td/td/telegram/files/FileType.h
deleted file mode 100644
index 4b865b03d7..0000000000
--- a/third-party/td/td/td/telegram/files/FileType.h
+++ /dev/null
@@ -1,78 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class FileType : int32 {
-  Thumbnail,
-  ProfilePhoto,
-  Photo,
-  VoiceNote,
-  Video,
-  Document,
-  Encrypted,
-  Temp,
-  Sticker,
-  Audio,
-  Animation,
-  EncryptedThumbnail,
-  Wallpaper,
-  VideoNote,
-  SecureDecrypted,
-  SecureEncrypted,
-  Background,
-  DocumentAsFile,
-  Ringtone,
-  CallLog,
-  PhotoStory,
-  VideoStory,
-  SelfDestructingPhoto,
-  SelfDestructingVideo,
-  SelfDestructingVideoNote,
-  SelfDestructingVoiceNote,
-  Size,
-  None
-};
-
-enum class FileDirType : int8 { Secure, Common };
-
-constexpr int32 MAX_FILE_TYPE = static_cast<int32>(FileType::Size);
-
-FileType get_file_type(const td_api::FileType &file_type);
-
-tl_object_ptr<td_api::FileType> get_file_type_object(FileType file_type);
-
-FileType get_main_file_type(FileType file_type);
-
-CSlice get_file_type_name(FileType file_type);
-
-CSlice get_file_type_unique_name(FileType file_type);
-
-enum class FileTypeClass : int32 { Photo, Document, Secure, Encrypted, Temp };
-
-FileTypeClass get_file_type_class(FileType file_type);
-
-bool is_document_file_type(FileType file_type);
-
-StringBuilder &operator<<(StringBuilder &string_builder, FileType file_type);
-
-FileDirType get_file_dir_type(FileType file_type);
-
-bool is_file_big(FileType file_type, int64 expected_size);
-
-bool can_reuse_remote_file(FileType file_type);
-
-FileType guess_file_type_by_path(Slice file_path, FileType default_file_type = FileType::None);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileUploadId.h b/third-party/td/td/td/telegram/files/FileUploadId.h
deleted file mode 100644
index dce3f30fa6..0000000000
--- a/third-party/td/td/td/telegram/files/FileUploadId.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class FileUploadId {
-  FileId file_id_;
-  int64 internal_upload_id_ = 0;
-
- public:
-  FileUploadId() = default;
-
-  FileUploadId(FileId file_id, int64 internal_upload_id) : file_id_(file_id), internal_upload_id_(internal_upload_id) {
-  }
-
-  bool is_valid() const {
-    return file_id_.is_valid();
-  }
-
-  FileId get_file_id() const {
-    return file_id_;
-  }
-
-  int64 get_internal_upload_id() const {
-    return internal_upload_id_;
-  }
-
-  bool operator==(const FileUploadId &other) const {
-    return file_id_ == other.file_id_ && internal_upload_id_ == other.internal_upload_id_;
-  }
-
-  bool operator!=(const FileUploadId &other) const {
-    return !(*this == other);
-  }
-};
-
-struct FileUploadIdHash {
-  uint32 operator()(FileUploadId file_id) const {
-    return combine_hashes(FileIdHash()(file_id.get_file_id()), Hash<int64>()(file_id.get_internal_upload_id()));
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, FileUploadId file_upload_id) {
-  return string_builder << "file " << file_upload_id.get_file_id() << '+' << file_upload_id.get_internal_upload_id();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileUploadManager.cpp b/third-party/td/td/td/telegram/files/FileUploadManager.cpp
deleted file mode 100644
index 553a828184..0000000000
--- a/third-party/td/td/td/telegram/files/FileUploadManager.cpp
+++ /dev/null
@@ -1,201 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileUploadManager.h"
-
-#include "td/telegram/Global.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-FileUploadManager::Callback::~Callback() = default;
-
-FileUploadManager::FileUploadManager(unique_ptr<Callback> callback, ActorShared<> parent)
-    : callback_(std::move(callback)), parent_(std::move(parent)) {
-}
-
-void FileUploadManager::start_up() {
-  constexpr int64 MAX_UPLOAD_RESOURCE_LIMIT = 4 << 20;
-  upload_resource_manager_ = create_actor<ResourceManager>(
-      "UploadResourceManager", MAX_UPLOAD_RESOURCE_LIMIT,
-      !G()->keep_media_order() ? ResourceManager::Mode::Greedy : ResourceManager::Mode::Baseline);
-}
-
-void FileUploadManager::upload(QueryId query_id, const LocalFileLocation &local_location,
-                               const RemoteFileLocation &remote_location, int64 expected_size,
-                               const FileEncryptionKey &encryption_key, int8 priority, vector<int> bad_parts) {
-  if (stop_flag_) {
-    return;
-  }
-  NodeId node_id = nodes_container_.create(Node());
-  Node *node = nodes_container_.get(node_id);
-  CHECK(node);
-  node->query_id_ = query_id;
-  auto callback = make_unique<FileUploaderCallback>(actor_shared(this, node_id));
-  node->uploader_ = create_actor<FileUploader>("Uploader", local_location, remote_location, expected_size,
-                                               encryption_key, std::move(bad_parts), std::move(callback));
-  send_closure(upload_resource_manager_, &ResourceManager::register_worker,
-               ActorShared<FileLoaderActor>(node->uploader_.get(), static_cast<uint64>(-1)), priority);
-  bool is_inserted = query_id_to_node_id_.emplace(query_id, node_id).second;
-  CHECK(is_inserted);
-}
-
-void FileUploadManager::upload_by_hash(QueryId query_id, const FullLocalFileLocation &local_location, int64 size,
-                                       int8 priority) {
-  if (stop_flag_) {
-    return;
-  }
-  NodeId node_id = nodes_container_.create(Node());
-  Node *node = nodes_container_.get(node_id);
-  CHECK(node);
-  node->query_id_ = query_id;
-  auto callback = make_unique<FileHashUploaderCallback>(actor_shared(this, node_id));
-  node->hash_uploader_ = create_actor<FileHashUploader>("HashUploader", local_location, size, std::move(callback));
-  send_closure(upload_resource_manager_, &ResourceManager::register_worker,
-               ActorShared<FileLoaderActor>(node->hash_uploader_.get(), static_cast<uint64>(-1)), priority);
-  bool is_inserted = query_id_to_node_id_.emplace(query_id, node_id).second;
-  CHECK(is_inserted);
-}
-
-void FileUploadManager::update_priority(QueryId query_id, int8 priority) {
-  if (stop_flag_) {
-    return;
-  }
-  auto it = query_id_to_node_id_.find(query_id);
-  if (it == query_id_to_node_id_.end()) {
-    return;
-  }
-  auto node = nodes_container_.get(it->second);
-  if (node == nullptr) {
-    return;
-  }
-  if (!node->uploader_.empty()) {
-    send_closure(node->uploader_, &FileLoaderActor::update_priority, priority);
-  } else {
-    send_closure(node->hash_uploader_, &FileLoaderActor::update_priority, priority);
-  }
-}
-
-void FileUploadManager::cancel(QueryId query_id) {
-  if (stop_flag_) {
-    return;
-  }
-  auto it = query_id_to_node_id_.find(query_id);
-  if (it == query_id_to_node_id_.end()) {
-    return;
-  }
-  on_error_impl(it->second, Status::Error(-1, "Canceled"));
-}
-
-void FileUploadManager::update_local_file_location(QueryId query_id, const LocalFileLocation &local) {
-  if (stop_flag_) {
-    return;
-  }
-  auto it = query_id_to_node_id_.find(query_id);
-  if (it == query_id_to_node_id_.end()) {
-    return;
-  }
-  auto node = nodes_container_.get(it->second);
-  if (node == nullptr || node->uploader_.empty()) {
-    return;
-  }
-  send_closure(node->uploader_, &FileUploader::update_local_file_location, local);
-}
-
-void FileUploadManager::hangup() {
-  nodes_container_.for_each([](auto query_id, auto &node) {
-    node.uploader_.reset();
-    node.hash_uploader_.reset();
-  });
-  upload_resource_manager_.reset();
-  stop_flag_ = true;
-  try_stop();
-}
-
-void FileUploadManager::on_hash(string hash) {
-  auto node_id = get_link_token();
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_hash(node->query_id_, std::move(hash));
-  }
-}
-
-void FileUploadManager::on_partial_upload(PartialRemoteFileLocation partial_remote) {
-  auto node_id = get_link_token();
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_partial_upload(node->query_id_, std::move(partial_remote));
-  }
-}
-
-void FileUploadManager::on_ok_upload(FileType file_type, PartialRemoteFileLocation remote) {
-  auto node_id = get_link_token();
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_upload_ok(node->query_id_, file_type, std::move(remote));
-  }
-  close_node(node_id);
-}
-
-void FileUploadManager::on_ok_upload_full(FullRemoteFileLocation remote) {
-  auto node_id = get_link_token();
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_upload_full_ok(node->query_id_, std::move(remote));
-  }
-  close_node(node_id);
-}
-
-void FileUploadManager::on_error(Status status) {
-  auto node_id = get_link_token();
-  on_error_impl(node_id, std::move(status));
-}
-
-void FileUploadManager::on_error_impl(NodeId node_id, Status status) {
-  auto node = nodes_container_.get(node_id);
-  if (node == nullptr) {
-    status.ignore();
-    return;
-  }
-  if (!stop_flag_) {
-    callback_->on_error(node->query_id_, std::move(status));
-  }
-  close_node(node_id);
-}
-
-void FileUploadManager::hangup_shared() {
-  auto node_id = get_link_token();
-  on_error_impl(node_id, Status::Error(-1, "Canceled"));
-}
-
-void FileUploadManager::try_stop() {
-  if (stop_flag_ && nodes_container_.empty()) {
-    stop();
-  }
-}
-
-void FileUploadManager::close_node(NodeId node_id) {
-  auto node = nodes_container_.get(node_id);
-  CHECK(node);
-  query_id_to_node_id_.erase(node->query_id_);
-  nodes_container_.erase(node_id);
-  try_stop();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileUploadManager.h b/third-party/td/td/td/telegram/files/FileUploadManager.h
deleted file mode 100644
index 2bef8732ed..0000000000
--- a/third-party/td/td/td/telegram/files/FileUploadManager.h
+++ /dev/null
@@ -1,123 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileHashUploader.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/files/FileUploader.h"
-#include "td/telegram/files/ResourceManager.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/Status.h"
-
-#include <map>
-
-namespace td {
-
-class FileUploadManager final : public Actor {
- public:
-  using QueryId = uint64;
-
-  class Callback {
-   public:
-    virtual ~Callback();
-    virtual void on_partial_upload(QueryId query_id, PartialRemoteFileLocation partial_remote) = 0;
-    virtual void on_hash(QueryId query_id, string hash) = 0;
-    virtual void on_upload_ok(QueryId query_id, FileType file_type, PartialRemoteFileLocation remote) = 0;
-    virtual void on_upload_full_ok(QueryId query_id, FullRemoteFileLocation remote) = 0;
-    virtual void on_error(QueryId query_id, Status status) = 0;
-  };
-
-  FileUploadManager(unique_ptr<Callback> callback, ActorShared<> parent);
-
-  void upload(QueryId query_id, const LocalFileLocation &local_location, const RemoteFileLocation &remote_location,
-              int64 expected_size, const FileEncryptionKey &encryption_key, int8 priority, vector<int> bad_parts);
-
-  void upload_by_hash(QueryId query_id, const FullLocalFileLocation &local_location, int64 size, int8 priority);
-
-  void update_priority(QueryId query_id, int8 priority);
-
-  void cancel(QueryId query_id);
-
-  void update_local_file_location(QueryId query_id, const LocalFileLocation &local);
-
- private:
-  struct Node {
-    QueryId query_id_;
-    ActorOwn<FileUploader> uploader_;
-    ActorOwn<FileHashUploader> hash_uploader_;
-  };
-  using NodeId = uint64;
-
-  ActorOwn<ResourceManager> upload_resource_manager_;
-
-  Container<Node> nodes_container_;
-  unique_ptr<Callback> callback_;
-  ActorShared<> parent_;
-  std::map<QueryId, NodeId> query_id_to_node_id_;
-  bool stop_flag_ = false;
-
-  void start_up() final;
-  void hangup() final;
-  void hangup_shared() final;
-
-  void close_node(NodeId node_id);
-
-  void try_stop();
-
-  void on_partial_upload(PartialRemoteFileLocation partial_remote);
-  void on_hash(string hash);
-  void on_ok_upload(FileType file_type, PartialRemoteFileLocation remote);
-  void on_ok_upload_full(FullRemoteFileLocation remote);
-  void on_error(Status status);
-  void on_error_impl(NodeId node_id, Status status);
-
-  class FileUploaderCallback final : public FileUploader::Callback {
-   public:
-    explicit FileUploaderCallback(ActorShared<FileUploadManager> actor_id) : actor_id_(std::move(actor_id)) {
-    }
-
-   private:
-    ActorShared<FileUploadManager> actor_id_;
-
-    void on_hash(string hash) final {
-      send_closure(actor_id_, &FileUploadManager::on_hash, std::move(hash));
-    }
-    void on_partial_upload(PartialRemoteFileLocation partial_remote) final {
-      send_closure(actor_id_, &FileUploadManager::on_partial_upload, std::move(partial_remote));
-    }
-    void on_ok(FileType file_type, PartialRemoteFileLocation partial_remote) final {
-      send_closure(std::move(actor_id_), &FileUploadManager::on_ok_upload, file_type, std::move(partial_remote));
-    }
-    void on_error(Status status) final {
-      send_closure(std::move(actor_id_), &FileUploadManager::on_error, std::move(status));
-    }
-  };
-
-  class FileHashUploaderCallback final : public FileHashUploader::Callback {
-   public:
-    explicit FileHashUploaderCallback(ActorShared<FileUploadManager> actor_id) : actor_id_(std::move(actor_id)) {
-    }
-
-   private:
-    ActorShared<FileUploadManager> actor_id_;
-
-    void on_ok(FullRemoteFileLocation remote) final {
-      send_closure(std::move(actor_id_), &FileUploadManager::on_ok_upload_full, std::move(remote));
-    }
-    void on_error(Status status) final {
-      send_closure(std::move(actor_id_), &FileUploadManager::on_error, std::move(status));
-    }
-  };
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileUploader.cpp b/third-party/td/td/td/telegram/files/FileUploader.cpp
deleted file mode 100644
index 35945625ba..0000000000
--- a/third-party/td/td/td/telegram/files/FileUploader.cpp
+++ /dev/null
@@ -1,487 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/FileUploader.h"
-
-#include "td/telegram/files/FileLoaderUtils.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/SecureStorage.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UniqueId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/path.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-
-namespace td {
-
-FileUploader::FileUploader(const LocalFileLocation &local, const RemoteFileLocation &remote, int64 expected_size,
-                           const FileEncryptionKey &encryption_key, std::vector<int> bad_parts,
-                           unique_ptr<Callback> callback)
-    : local_(local)
-    , remote_(remote)
-    , expected_size_(expected_size)
-    , encryption_key_(encryption_key)
-    , bad_parts_(std::move(bad_parts))
-    , callback_(std::move(callback)) {
-  if (encryption_key_.is_secret()) {
-    iv_ = encryption_key_.mutable_iv();
-    generate_iv_ = encryption_key_.iv_slice().str();
-  }
-  if (remote_.type() == RemoteFileLocation::Type::Partial && encryption_key_.is_secure() &&
-      remote_.partial().part_count_ != remote_.partial().ready_part_count_) {
-    remote_ = RemoteFileLocation{};
-  }
-}
-
-void FileUploader::start_up() {
-  if (remote_.type() == RemoteFileLocation::Type::Full) {
-    return on_error(Status::Error("File is already uploaded"));
-  }
-
-  // file_size is needed only for partial local locations, but for uploaded partial files
-  // size is yet unknown or local location is full, so we can always pass 0 here
-  auto r_prefix_info = on_update_local_location(local_, 0);
-  if (r_prefix_info.is_error()) {
-    return on_error(r_prefix_info.move_as_error());
-  }
-
-  int offset = 0;
-  int part_size = 0;
-  if (remote_.type() == RemoteFileLocation::Type::Partial) {
-    const auto &partial = remote_.partial();
-    file_id_ = partial.file_id_;
-    part_size = partial.part_size_;
-    big_flag_ = partial.is_big_ != 0;
-    offset = partial.ready_part_count_;
-  } else {
-    file_id_ = Random::secure_int64();
-    big_flag_ = is_file_big(file_type_, expected_size_);
-  }
-
-  vector<bool> ok(offset, true);
-  for (auto bad_id : bad_parts_) {
-    if (bad_id >= 0 && bad_id < offset) {
-      ok[bad_id] = false;
-    }
-  }
-  vector<int> ready_parts;
-  for (int i = 0; i < offset; i++) {
-    if (ok[i]) {
-      ready_parts.push_back(i);
-    }
-  }
-  if (!ok.empty() && !ok[0]) {
-    ready_parts.clear();
-    part_size = 0;
-    remote_ = RemoteFileLocation();
-    file_id_ = Random::secure_int64();
-    big_flag_ = is_file_big(file_type_, expected_size_);
-  }
-
-  LOG(DEBUG) << "Init file uploader for " << remote_ << " with offset = " << offset << " and part size = " << part_size;
-
-  auto expected_size = max(local_size_, expected_size_);
-
-  // Two cases when FILE_UPLOAD_RESTART will happen
-  // 1. File is ready, size is final. But there are more uploaded parts than size of the file
-  // pm.init(1, 100000, true, 10, {0, 1, 2}, false, true).ensure_error();
-  // This error is definitely ok, because we are using actual size of the file on disk (mtime is checked by
-  // somebody else). And actual size could change arbitrarily.
-  //
-  // 2. File size is not final, and some parts ending after known file size were uploaded
-  // pm.init(0, 100000, false, 10, {0, 1, 2}, false, true).ensure_error();
-  // This can happen only if file state became inconsistent at some point. For example, local location was deleted,
-  // but partial remote location was kept. This is possible, but probably should be fixed.
-  auto status = parts_manager_.init(local_size_, expected_size, local_is_ready_, part_size, ready_parts, true, true);
-  LOG(DEBUG) << "Start uploading a file of size " << local_size_ << " with expected "
-             << (local_is_ready_ ? "exact" : "approximate") << " size " << expected_size << ", part size " << part_size
-             << " and " << ready_parts.size() << " ready parts: " << status;
-  if (status.is_error()) {
-    return on_error(std::move(status));
-  }
-  resource_state_.set_unit_size(parts_manager_.get_part_size());
-  update_estimated_limit();
-  on_progress();
-  yield();
-}
-
-Result<FileUploader::PrefixInfo> FileUploader::on_update_local_location(const LocalFileLocation &location,
-                                                                        int64 file_size) {
-  SCOPE_EXIT {
-    try_release_fd();
-  };
-
-  if (encryption_key_.is_secure() && !fd_path_.empty()) {
-    return Status::Error("Can't change local location for Secure file");
-  }
-
-  string path;
-  int64 local_size = -1;
-  bool local_is_ready = false;
-  if (location.type() == LocalFileLocation::Type::Empty ||
-      (location.type() == LocalFileLocation::Type::Partial && encryption_key_.is_secure())) {
-    path = "";
-    local_size = 0;
-    file_type_ = FileType::Temp;
-  } else if (location.type() == LocalFileLocation::Type::Partial) {
-    path = location.partial().path_;
-    local_size = Bitmask(Bitmask::Decode{}, location.partial().ready_bitmask_)
-                     .get_ready_prefix_size(0, location.partial().part_size_, file_size);
-    file_type_ = location.partial().file_type_;
-  } else {
-    path = location.full().path_;
-    if (path.empty()) {
-      return Status::Error("FullLocalFileLocation with empty path");
-    }
-    local_is_ready = true;
-    file_type_ = location.full().file_type_;
-  }
-
-  LOG(INFO) << "In FileUploader::on_update_local_location with " << location << ". Have path = \"" << path
-            << "\", local_size = " << local_size << ", local_is_ready = " << local_is_ready
-            << " and file type = " << file_type_;
-
-  bool is_temp = false;
-  if (encryption_key_.is_secure() && local_is_ready && remote_.type() == RemoteFileLocation::Type::Empty) {
-    TRY_RESULT(file_fd_path, open_temp_file(FileType::Temp));
-    file_fd_path.first.close();
-    auto new_path = std::move(file_fd_path.second);
-    TRY_RESULT(hash, secure_storage::encrypt_file(encryption_key_.secret(), path, new_path));
-    LOG(INFO) << "ENCRYPT " << path << " " << new_path;
-    callback_->on_hash(hash.as_slice().str());
-    path = new_path;
-    is_temp = true;
-  }
-
-  if (!path.empty() && (path != fd_path_ || fd_.empty())) {
-    auto res_fd = FileFd::open(path, FileFd::Read);
-
-    // Race: partial location could be already deleted. Just ignore such locations
-    if (res_fd.is_error()) {
-      if (location.type() == LocalFileLocation::Type::Partial) {
-        LOG(INFO) << "Ignore partial local location: " << res_fd.error();
-        PrefixInfo info;
-        info.size = local_size_;
-        info.is_ready = local_is_ready_;
-        return info;
-      }
-      return res_fd.move_as_error();
-    }
-
-    fd_.close();
-    fd_ = res_fd.move_as_ok();
-    fd_path_ = path;
-    is_temp_ = is_temp;
-  }
-  if (local_is_ready) {
-    CHECK(!fd_.empty());
-    TRY_RESULT_ASSIGN(local_size, fd_.get_size());
-    LOG(INFO) << "Set file local_size to " << local_size;
-    if (local_size == 0) {
-      return Status::Error("Can't upload empty file");
-    }
-  } else if (!fd_.empty()) {
-    TRY_RESULT(real_local_size, fd_.get_size());
-    if (real_local_size < local_size) {
-      LOG(ERROR) << tag("real_local_size", real_local_size) << " < " << tag("local_size", local_size);
-      PrefixInfo info;
-      info.size = local_size_;
-      info.is_ready = local_is_ready_;
-      return info;
-    }
-  }
-
-  local_size_ = local_size;
-  if (expected_size_ < local_size_ && (expected_size_ != (10 << 20) || local_size_ >= (30 << 20))) {
-    expected_size_ = local_size_;
-  }
-  local_is_ready_ = local_is_ready;
-
-  PrefixInfo info;
-  info.size = local_size_;
-  info.is_ready = local_is_ready_;
-  return info;
-}
-
-void FileUploader::on_error(Status status) {
-  fd_.close();
-  if (is_temp_) {
-    LOG(INFO) << "UNLINK " << fd_path_;
-    unlink(fd_path_).ignore();
-  }
-  stop_flag_ = true;
-  callback_->on_error(std::move(status));
-}
-
-Status FileUploader::generate_iv_map() {
-  LOG(INFO) << "Generate iv_map " << generate_offset_ << " " << local_size_;
-  auto part_size = parts_manager_.get_part_size();
-  auto encryption_key = FileEncryptionKey(encryption_key_.key_slice(), generate_iv_);
-  BufferSlice bytes(part_size);
-  if (iv_map_.empty()) {
-    iv_map_.push_back(encryption_key.mutable_iv());
-  }
-  CHECK(!fd_.empty());
-  for (; generate_offset_ + static_cast<int64>(part_size) < local_size_;
-       generate_offset_ += static_cast<int64>(part_size)) {
-    TRY_RESULT(read_size, fd_.pread(bytes.as_mutable_slice(), generate_offset_));
-    if (read_size != part_size) {
-      return Status::Error("Failed to read file part (for iv_map)");
-    }
-    aes_ige_encrypt(as_slice(encryption_key.key()), as_mutable_slice(encryption_key.mutable_iv()), bytes.as_slice(),
-                    bytes.as_mutable_slice());
-    iv_map_.push_back(encryption_key.mutable_iv());
-  }
-  generate_iv_ = encryption_key.iv_slice().str();
-  return Status::OK();
-}
-
-Result<NetQueryPtr> FileUploader::start_part(Part part, int32 part_count) {
-  auto padded_size = part.size;
-  if (encryption_key_.is_secret()) {
-    padded_size = (padded_size + 15) & ~15;
-  }
-  BufferSlice bytes(padded_size);
-  TRY_RESULT(size, fd_.pread(bytes.as_mutable_slice().truncate(part.size), part.offset));
-  if (encryption_key_.is_secret()) {
-    Random::secure_bytes(bytes.as_mutable_slice().substr(part.size));
-    if (next_offset_ == part.offset) {
-      aes_ige_encrypt(as_slice(encryption_key_.key()), as_mutable_slice(iv_), bytes.as_slice(),
-                      bytes.as_mutable_slice());
-      next_offset_ += static_cast<int64>(bytes.size());
-    } else {
-      if (part.id >= static_cast<int32>(iv_map_.size())) {
-        TRY_STATUS(generate_iv_map());
-      }
-      CHECK(part.id < static_cast<int32>(iv_map_.size()) && part.id >= 0);
-      auto iv = iv_map_[part.id];
-      aes_ige_encrypt(as_slice(encryption_key_.key()), as_mutable_slice(iv), bytes.as_slice(),
-                      bytes.as_mutable_slice());
-    }
-  }
-
-  if (size != part.size) {
-    return Status::Error("Failed to read file part");
-  }
-
-  NetQueryPtr net_query;
-  if (big_flag_) {
-    auto query =
-        telegram_api::upload_saveBigFilePart(file_id_, part.id, local_is_ready_ ? part_count : -1, std::move(bytes));
-    net_query = G()->net_query_creator().create(query, {}, DcId::main(), NetQuery::Type::Upload);
-  } else {
-    auto query = telegram_api::upload_saveFilePart(file_id_, part.id, std::move(bytes));
-    net_query = G()->net_query_creator().create(query, {}, DcId::main(), NetQuery::Type::Upload);
-  }
-  net_query->file_type_ = narrow_cast<int32>(file_type_);
-  return std::move(net_query);
-}
-
-Result<size_t> FileUploader::process_part(Part part, NetQueryPtr net_query) {
-  Result<bool> result = [&] {
-    if (big_flag_) {
-      return fetch_result<telegram_api::upload_saveBigFilePart>(std::move(net_query));
-    } else {
-      return fetch_result<telegram_api::upload_saveFilePart>(std::move(net_query));
-    }
-  }();
-  if (result.is_error()) {
-    return result.move_as_error();
-  }
-  if (!result.ok()) {
-    // TODO: it is possible
-    return Status::Error(500, "Internal Server Error during file upload");
-  }
-  return part.size;
-}
-
-void FileUploader::on_progress() {
-  auto part_count = parts_manager_.get_part_count();
-  auto part_size = static_cast<int32>(parts_manager_.get_part_size());
-  auto ready_part_count = parts_manager_.get_ready_prefix_count();
-  callback_->on_partial_upload(PartialRemoteFileLocation{file_id_, part_count, part_size, ready_part_count, big_flag_,
-                                                         parts_manager_.get_ready_size()});
-  if (parts_manager_.ready()) {
-    callback_->on_ok(file_type_, PartialRemoteFileLocation{file_id_, part_count, part_size, ready_part_count, big_flag_,
-                                                           local_size_});
-  }
-}
-
-void FileUploader::try_release_fd() {
-  if (!keep_fd_ && !fd_.empty()) {
-    fd_.close();
-  }
-}
-
-Status FileUploader::acquire_fd() {
-  if (fd_.empty()) {
-    TRY_RESULT_ASSIGN(fd_, FileFd::open(fd_path_, FileFd::Read));
-  }
-  return Status::OK();
-}
-
-void FileUploader::set_resource_manager(ActorShared<ResourceManager> resource_manager) {
-  resource_manager_ = std::move(resource_manager);
-  send_closure(resource_manager_, &ResourceManager::update_resources, resource_state_);
-}
-
-void FileUploader::update_priority(int8 priority) {
-  send_closure(resource_manager_, &ResourceManager::update_priority, priority);
-}
-
-void FileUploader::update_resources(const ResourceState &other) {
-  resource_state_.update_slave(other);
-  VLOG(file_loader) << "Update resources " << resource_state_;
-  loop();
-}
-
-void FileUploader::update_local_file_location(const LocalFileLocation &local) {
-  auto r_prefix_info = on_update_local_location(local, parts_manager_.get_size_or_zero());
-  if (r_prefix_info.is_error()) {
-    return on_error(r_prefix_info.move_as_error());
-  }
-  auto prefix_info = r_prefix_info.move_as_ok();
-  auto status = parts_manager_.set_known_prefix(prefix_info.size, prefix_info.is_ready);
-  if (status.is_error()) {
-    return on_error(std::move(status));
-  }
-  loop();
-}
-
-void FileUploader::loop() {
-  if (stop_flag_) {
-    return;
-  }
-  auto status = do_loop();
-  if (status.is_error()) {
-    if (status.code() == -1) {
-      return;
-    }
-    on_error(std::move(status));
-  }
-}
-
-Status FileUploader::do_loop() {
-  if (parts_manager_.may_finish()) {
-    TRY_STATUS(parts_manager_.finish());
-    fd_.close();
-    if (is_temp_) {
-      LOG(INFO) << "UNLINK " << fd_path_;
-      unlink(fd_path_).ignore();
-    }
-    stop_flag_ = true;
-    return Status::OK();
-  }
-
-  auto status = acquire_fd();
-  if (status.is_error()) {
-    if (!local_is_ready_) {
-      return Status::Error(-1, "Can't open temporary file");
-    }
-    return status;
-  }
-
-  SCOPE_EXIT {
-    try_release_fd();
-  };
-  while (true) {
-    if (resource_state_.unused() < narrow_cast<int64>(parts_manager_.get_part_size())) {
-      VLOG(file_loader) << "Receive only " << resource_state_.unused() << " resource";
-      break;
-    }
-    TRY_RESULT(part, parts_manager_.start_part());
-    if (part.size == 0) {
-      break;
-    }
-    VLOG(file_loader) << "Start part " << tag("id", part.id) << tag("size", part.size);
-    resource_state_.start_use(static_cast<int64>(part.size));
-
-    TRY_RESULT(query, start_part(part, parts_manager_.get_part_count()));
-    uint64 unique_id = UniqueId::next();
-    part_map_[unique_id] = std::make_pair(part, query->cancel_slot_.get_signal_new());
-
-    G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, unique_id));
-  }
-  return Status::OK();
-}
-
-void FileUploader::tear_down() {
-  for (auto &it : part_map_) {
-    it.second.second.reset();  // cancel_query(it.second.second);
-  }
-}
-
-void FileUploader::update_estimated_limit() {
-  if (stop_flag_) {
-    return;
-  }
-  auto estimated_extra = parts_manager_.get_estimated_extra();
-  resource_state_.update_estimated_limit(estimated_extra);
-  VLOG(file_loader) << "Update estimated limit " << estimated_extra;
-  if (!resource_manager_.empty()) {
-    keep_fd_ = narrow_cast<uint64>(resource_state_.active_limit()) >= parts_manager_.get_part_size();
-    try_release_fd();
-    send_closure(resource_manager_, &ResourceManager::update_resources, resource_state_);
-  }
-}
-
-void FileUploader::on_result(NetQueryPtr query) {
-  if (stop_flag_) {
-    return;
-  }
-  auto unique_id = get_link_token();
-  auto it = part_map_.find(unique_id);
-  if (it == part_map_.end()) {
-    LOG(ERROR) << "Receive result for unknown part";
-    return;
-  }
-
-  Part part = it->second.first;
-  it->second.second.release();
-  CHECK(query->is_ready());
-  part_map_.erase(it);
-
-  bool should_restart = query->is_error() && query->error().code() == NetQuery::Error::Canceled;
-  if (should_restart) {
-    VLOG(file_loader) << "Restart part " << tag("id", part.id) << tag("size", part.size);
-    resource_state_.stop_use(static_cast<int64>(part.size));
-    parts_manager_.on_part_failed(part.id);
-  } else {
-    on_part_query(part, std::move(query));
-  }
-  update_estimated_limit();
-  loop();
-}
-
-void FileUploader::on_part_query(Part part, NetQueryPtr query) {
-  if (stop_flag_) {
-    // important for secret files
-    return;
-  }
-  auto status = try_on_part_query(part, std::move(query));
-  if (status.is_error()) {
-    on_error(std::move(status));
-  }
-}
-
-Status FileUploader::try_on_part_query(Part part, NetQueryPtr query) {
-  TRY_RESULT(size, process_part(part, std::move(query)));
-  VLOG(file_loader) << "Ok part " << tag("id", part.id) << tag("size", part.size);
-  resource_state_.stop_use(static_cast<int64>(part.size));
-  TRY_STATUS(parts_manager_.on_part_ok(part.id, part.size, size));
-  on_progress();
-  return Status::OK();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/FileUploader.h b/third-party/td/td/td/telegram/files/FileUploader.h
deleted file mode 100644
index b255f840bd..0000000000
--- a/third-party/td/td/td/telegram/files/FileUploader.h
+++ /dev/null
@@ -1,124 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileEncryptionKey.h"
-#include "td/telegram/files/FileLoaderActor.h"
-#include "td/telegram/files/FileLocation.h"
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/files/PartsManager.h"
-#include "td/telegram/files/ResourceManager.h"
-#include "td/telegram/files/ResourceState.h"
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-#include <map>
-#include <utility>
-
-namespace td {
-
-class FileUploader final : public FileLoaderActor {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual void on_hash(string hash) = 0;
-    virtual void on_partial_upload(PartialRemoteFileLocation partial_remote) = 0;
-    virtual void on_ok(FileType file_type, PartialRemoteFileLocation partial_remote) = 0;
-    virtual void on_error(Status status) = 0;
-    virtual ~Callback() = default;
-  };
-
-  FileUploader(const LocalFileLocation &local, const RemoteFileLocation &remote, int64 expected_size,
-               const FileEncryptionKey &encryption_key, std::vector<int> bad_parts, unique_ptr<Callback> callback);
-
-  void update_local_file_location(const LocalFileLocation &local);
-
- private:
-  LocalFileLocation local_;
-  RemoteFileLocation remote_;
-  int64 expected_size_;
-  FileEncryptionKey encryption_key_;
-  vector<int> bad_parts_;
-  unique_ptr<Callback> callback_;
-  int64 local_size_ = 0;
-  bool local_is_ready_ = false;
-  FileType file_type_ = FileType::Temp;
-
-  vector<UInt256> iv_map_;
-  UInt256 iv_;
-  string generate_iv_;
-  int64 generate_offset_ = 0;
-  int64 next_offset_ = 0;
-
-  FileFd fd_;
-  string fd_path_;
-  int64 file_id_ = 0;
-  bool is_temp_ = false;
-  bool big_flag_ = false;
-  bool keep_fd_ = false;
-  bool stop_flag_ = false;
-
-  ActorShared<ResourceManager> resource_manager_;
-  ResourceState resource_state_;
-  PartsManager parts_manager_;
-  std::map<uint64, std::pair<Part, ActorShared<>>> part_map_;
-
-  void set_resource_manager(ActorShared<ResourceManager> resource_manager) final;
-
-  void update_priority(int8 priority) final;
-
-  void update_resources(const ResourceState &other) final;
-
-  void on_error(Status status);
-
-  Result<NetQueryPtr> start_part(Part part, int32 part_count) TD_WARN_UNUSED_RESULT;
-
-  Result<size_t> process_part(Part part, NetQueryPtr net_query) TD_WARN_UNUSED_RESULT;
-
-  void on_progress();
-
-  struct PrefixInfo {
-    int64 size = -1;
-    bool is_ready = false;
-  };
-  Result<PrefixInfo> on_update_local_location(const LocalFileLocation &location, int64 file_size) TD_WARN_UNUSED_RESULT;
-
-  Status generate_iv_map();
-
-  void try_release_fd();
-
-  Status acquire_fd() TD_WARN_UNUSED_RESULT;
-
-  void start_up() final;
-
-  void loop() final;
-
-  Status do_loop();
-
-  void tear_down() final;
-
-  void update_estimated_limit();
-
-  void on_result(NetQueryPtr query) final;
-
-  void on_part_query(Part part, NetQueryPtr query);
-
-  void on_common_query(NetQueryPtr query);
-
-  Status try_on_part_query(Part part, NetQueryPtr query);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/PartsManager.cpp b/third-party/td/td/td/telegram/files/PartsManager.cpp
deleted file mode 100644
index eedd5212c5..0000000000
--- a/third-party/td/td/td/telegram/files/PartsManager.cpp
+++ /dev/null
@@ -1,594 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/PartsManager.h"
-
-#include "td/telegram/files/FileLoaderUtils.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <limits>
-#include <numeric>
-
-namespace td {
-
-namespace {
-int64 calc_part_count(int64 size, int64 part_size) {
-  CHECK(part_size != 0);
-  return (size + part_size - 1) / part_size;
-}
-}  // namespace
-
-Status PartsManager::init_known_prefix(int64 known_prefix, size_t part_size, const std::vector<int> &ready_parts) {
-  known_prefix_flag_ = true;
-  known_prefix_size_ = known_prefix;
-  return init_no_size(part_size, ready_parts);
-}
-
-int32 PartsManager::set_streaming_offset(int64 offset, int64 limit) {
-  auto finish = [&] {
-    set_streaming_limit(limit);
-    update_first_not_ready_part();
-    return first_streaming_not_ready_part_;
-  };
-
-  if (offset < 0 || need_check_ || (!unknown_size_flag_ && get_size() < offset)) {
-    streaming_offset_ = 0;
-    LOG_IF(ERROR, offset != 0) << "Ignore streaming_offset " << offset << ", need_check_ = " << need_check_
-                               << ", unknown_size_flag_ = " << unknown_size_flag_ << ", size = " << get_size();
-
-    return finish();
-  }
-
-  auto part_id = offset / part_size_;
-  if (use_part_count_limit_ && part_id >= MAX_PART_COUNT_PREMIUM) {
-    streaming_offset_ = 0;
-    LOG(ERROR) << "Ignore streaming_offset " << offset << " in part " << part_id;
-
-    return finish();
-  }
-
-  streaming_offset_ = offset;
-  first_streaming_empty_part_ = narrow_cast<int>(part_id);
-  first_streaming_not_ready_part_ = narrow_cast<int>(part_id);
-  if (part_count_ < first_streaming_empty_part_) {
-    part_count_ = first_streaming_empty_part_;
-    part_status_.resize(part_count_, PartStatus::Empty);
-  }
-
-  return finish();
-}
-
-void PartsManager::set_streaming_limit(int64 limit) {
-  streaming_limit_ = limit;
-  streaming_ready_size_ = 0;
-  if (streaming_limit_ == 0) {
-    return;
-  }
-  for (int part_id = 0; part_id < part_count_; part_id++) {
-    if (is_part_in_streaming_limit(part_id) && part_status_[part_id] == PartStatus::Ready) {
-      streaming_ready_size_ += get_part(part_id).size;
-    }
-  }
-}
-
-Status PartsManager::init_no_size(size_t part_size, const std::vector<int> &ready_parts) {
-  unknown_size_flag_ = true;
-  size_ = 0;
-  min_size_ = 0;
-  max_size_ = std::numeric_limits<int64>::max();
-
-  if (part_size != 0) {
-    part_size_ = part_size;
-  } else {
-    part_size_ = 32 << 10;
-    while (part_size_ < MAX_PART_SIZE && calc_part_count(expected_size_, part_size_) > MAX_PART_COUNT) {
-      part_size_ *= 2;
-    }
-    // just in case if expected_size_ is wrong
-    if (part_size_ < MAX_PART_SIZE) {
-      part_size_ *= 2;
-    }
-  }
-  part_count_ =
-      std::accumulate(ready_parts.begin(), ready_parts.end(), 0, [](auto a, auto b) { return max(a, b + 1); });
-
-  return init_common(ready_parts);
-}
-
-Status PartsManager::init(int64 size, int64 expected_size, bool is_size_final, size_t part_size,
-                          const std::vector<int> &ready_parts, bool use_part_count_limit, bool is_upload) {
-  CHECK(expected_size >= size);
-  is_upload_ = is_upload;
-  use_part_count_limit_ = use_part_count_limit;
-  expected_size_ = expected_size;
-  if (expected_size_ > MAX_FILE_SIZE) {
-    return Status::Error("Too big file");
-  }
-  if (!is_size_final) {
-    return init_known_prefix(size, part_size, ready_parts);
-  }
-  if (size == 0) {
-    return init_no_size(part_size, ready_parts);
-  }
-  LOG_CHECK(size > 0) << tag("size", size) << ' ' << *this;
-  unknown_size_flag_ = false;
-  size_ = size;
-
-  if (part_size != 0) {
-    part_size_ = part_size;
-    if (use_part_count_limit_ && part_size_ < MAX_PART_SIZE &&
-        calc_part_count(expected_size_, part_size_) > MAX_PART_COUNT) {
-      CHECK(is_upload_);
-      return Status::Error("FILE_UPLOAD_RESTART");
-    }
-  } else {
-    part_size_ = 64 << 10;
-    while (part_size_ < MAX_PART_SIZE && calc_part_count(expected_size_, part_size_) > MAX_PART_COUNT) {
-      part_size_ *= 2;
-    }
-  }
-  LOG_CHECK(1 <= size_) << *this;
-  LOG_CHECK(!use_part_count_limit || calc_part_count(expected_size_, part_size_) <= MAX_PART_COUNT_PREMIUM)
-      << tag("is_size_final", is_size_final) << tag("ready_parts", ready_parts.size()) << ' ' << *this;
-  part_count_ = static_cast<int>(calc_part_count(size_, part_size_));
-
-  return init_common(ready_parts);
-}
-
-bool PartsManager::unchecked_ready() {
-  VLOG(file_loader) << "Check readiness. Ready size is " << ready_size_ << ", total size is " << size_
-                    << ", unknown_size_flag = " << unknown_size_flag_ << ", need_check = " << need_check_
-                    << ", checked_prefix_size = " << checked_prefix_size_;
-  return !unknown_size_flag_ && ready_size_ == size_;
-}
-
-bool PartsManager::may_finish() {
-  if (is_streaming_limit_reached()) {
-    return true;
-  }
-  return ready();
-}
-
-bool PartsManager::ready() {
-  return unchecked_ready() && (!need_check_ || checked_prefix_size_ == size_);
-}
-
-Status PartsManager::finish() {
-  if (ready()) {
-    return Status::OK();
-  }
-  if (is_streaming_limit_reached()) {
-    return Status::Error("FILE_DOWNLOAD_LIMIT");
-  }
-  return Status::Error("File transferring not finished");
-}
-
-void PartsManager::update_first_empty_part() {
-  while (first_empty_part_ < part_count_ && part_status_[first_empty_part_] != PartStatus::Empty) {
-    first_empty_part_++;
-  }
-
-  if (streaming_offset_ == 0) {
-    first_streaming_empty_part_ = first_empty_part_;
-    return;
-  }
-  while (first_streaming_empty_part_ < part_count_ && part_status_[first_streaming_empty_part_] != PartStatus::Empty) {
-    first_streaming_empty_part_++;
-  }
-}
-
-void PartsManager::update_first_not_ready_part() {
-  while (first_not_ready_part_ < part_count_ && part_status_[first_not_ready_part_] == PartStatus::Ready) {
-    first_not_ready_part_++;
-  }
-  if (streaming_offset_ == 0) {
-    first_streaming_not_ready_part_ = first_not_ready_part_;
-    return;
-  }
-  while (first_streaming_not_ready_part_ < part_count_ &&
-         part_status_[first_streaming_not_ready_part_] == PartStatus::Ready) {
-    first_streaming_not_ready_part_++;
-  }
-}
-
-int32 PartsManager::get_unchecked_ready_prefix_count() {
-  update_first_not_ready_part();
-  return first_not_ready_part_;
-}
-
-int32 PartsManager::get_ready_prefix_count() {
-  auto res = get_unchecked_ready_prefix_count();
-  if (need_check_) {
-    auto checked_parts = narrow_cast<int32>(checked_prefix_size_ / part_size_);
-    if (checked_parts < res) {
-      return checked_parts;
-    }
-  }
-  return res;
-}
-
-int64 PartsManager::get_streaming_offset() const {
-  return streaming_offset_;
-}
-
-string PartsManager::get_bitmask() {
-  int32 prefix_count = -1;
-  if (need_check_) {
-    prefix_count = narrow_cast<int32>(checked_prefix_size_ / part_size_);
-  }
-  return bitmask_.encode(prefix_count);
-}
-
-bool PartsManager::is_part_in_streaming_limit(int part_id) const {
-  CHECK(part_id < part_count_);
-  auto offset_begin = static_cast<int64>(part_id) * static_cast<int64>(get_part_size());
-  auto offset_end = offset_begin + static_cast<int64>(get_part(part_id).size);
-
-  if (streaming_limit_ == 0) {
-    return true;
-  }
-
-  auto is_intersect_with = [&](int64 begin, int64 end) {
-    return max(begin, offset_begin) < min(end, offset_end);
-  };
-
-  auto streaming_begin = streaming_offset_;
-  auto streaming_end = streaming_offset_ + streaming_limit_;
-  if (is_intersect_with(streaming_begin, streaming_end)) {
-    return true;
-  }
-  // wrap limit
-  if (!unknown_size_flag_ && streaming_end > get_size() && is_intersect_with(0, streaming_end - get_size())) {
-    return true;
-  }
-  return false;
-}
-
-bool PartsManager::is_streaming_limit_reached() {
-  if (streaming_limit_ == 0) {
-    return false;
-  }
-  update_first_not_ready_part();
-  auto part_id = first_streaming_not_ready_part_;
-
-  //LOG(ERROR) << unknown_size_flag_ << ' ' << part_id << ' ' << part_count_ << ' ' << first_not_ready_part_ << ' '
-  //           << get_estimated_extra() << ' ' << (part_id == part_count_ ? true : is_part_in_streaming_limit(part_id));
-
-  // wrap
-  if (!unknown_size_flag_ && part_id == part_count_) {
-    part_id = first_not_ready_part_;
-  }
-  if (part_id == part_count_ || !is_part_in_streaming_limit(part_id)) {
-    return get_estimated_extra() == 0;
-  }
-  return false;
-}
-
-Result<Part> PartsManager::start_part() {
-  update_first_empty_part();
-  auto part_id = first_streaming_empty_part_;
-  if (known_prefix_flag_ && part_id >= static_cast<int>(known_prefix_size_ / part_size_)) {
-    return Status::Error(-1, "Wait for prefix to be known");
-  }
-  if (part_id == part_count_) {
-    if (unknown_size_flag_) {
-      part_count_++;
-      if (part_count_ > MAX_PART_COUNT_PREMIUM + (use_part_count_limit_ ? 0 : 64)) {
-        if (!is_upload_) {
-          // Caller will try to increase part size if it is possible
-          return Status::Error("FILE_DOWNLOAD_RESTART_INCREASE_PART_SIZE");
-        }
-        return Status::Error("Too big file with unknown size");
-      }
-      part_status_.push_back(PartStatus::Empty);
-    } else {
-      if (first_empty_part_ < part_count_) {
-        part_id = first_empty_part_;
-      } else {
-        return get_empty_part();
-      }
-    }
-  }
-
-  if (!is_part_in_streaming_limit(part_id) ||
-      static_cast<int64>(part_id) * static_cast<int64>(get_part_size()) >= (unknown_size_flag_ ? max_size_ : size_)) {
-    return get_empty_part();
-  }
-
-  CHECK(part_status_[part_id] == PartStatus::Empty);
-  on_part_start(part_id);
-  return get_part(part_id);
-}
-
-Status PartsManager::set_known_prefix(int64 size, bool is_ready) {
-  if (!known_prefix_flag_ || size < known_prefix_size_ ||
-      (!is_ready && size / static_cast<int64>(part_size_) < static_cast<int64>(part_status_.size()))) {
-    CHECK(is_upload_);
-    return Status::Error("FILE_UPLOAD_RESTART");
-  }
-  known_prefix_size_ = size;
-  expected_size_ = max(known_prefix_size_, expected_size_);
-
-  CHECK(static_cast<size_t>(part_count_) == part_status_.size());
-  if (is_ready) {
-    part_count_ = static_cast<int>(calc_part_count(size, part_size_));
-
-    size_ = size;
-    unknown_size_flag_ = false;
-    known_prefix_flag_ = false;
-    if (streaming_limit_ != 0) {
-      set_streaming_limit(streaming_limit_);
-    }
-  } else {
-    part_count_ = static_cast<int>(size / static_cast<int64>(part_size_));
-  }
-
-  LOG_CHECK(static_cast<size_t>(part_count_) >= part_status_.size()) << size << ' ' << is_ready << ' ' << *this;
-  part_status_.resize(part_count_);
-  if (use_part_count_limit_ && part_size_ < MAX_PART_SIZE &&
-      calc_part_count(expected_size_, part_size_) > MAX_PART_COUNT) {
-    CHECK(is_upload_);
-    return Status::Error("FILE_UPLOAD_RESTART");
-  }
-  return Status::OK();
-}
-
-Status PartsManager::on_part_ok(int part_id, size_t part_size, size_t actual_size) {
-  LOG_CHECK(static_cast<size_t>(part_id) < part_status_.size())
-      << part_id << ' ' << part_size << ' ' << actual_size << ' ' << *this;
-  LOG_CHECK(part_status_[part_id] == PartStatus::Pending) << part_id << ' ' << static_cast<int32>(part_status_[part_id])
-                                                          << ' ' << part_size << ' ' << actual_size << ' ' << *this;
-  pending_count_--;
-
-  part_status_[part_id] = PartStatus::Ready;
-  if (actual_size != 0) {
-    bitmask_.set(part_id);
-  }
-  ready_size_ += narrow_cast<int64>(actual_size);
-  if (streaming_limit_ > 0 && is_part_in_streaming_limit(part_id)) {
-    streaming_ready_size_ += narrow_cast<int64>(actual_size);
-  }
-
-  VLOG(file_loader) << "Transferred part " << part_id << " of size " << part_size << " with actual size " << actual_size
-                    << ", total ready size = " << ready_size_;
-
-  int64 offset = narrow_cast<int64>(part_size_) * part_id;
-  int64 end_offset = offset + narrow_cast<int64>(actual_size);
-  if (unknown_size_flag_) {
-    CHECK(part_size == part_size_);
-    bool is_size_changed = false;
-    if (actual_size < part_size_ && end_offset < max_size_) {
-      max_size_ = end_offset;
-      is_size_changed = true;
-    }
-    if (actual_size) {
-      min_size_ = max(min_size_, end_offset);
-    }
-    if (min_size_ > max_size_) {
-      auto status = Status::Error(PSLICE() << "Failed to transfer file: " << tag("min_size", min_size_)
-                                           << tag("max_size", max_size_));
-      LOG(ERROR) << status << ' ' << *this;
-      return status;
-    } else if (min_size_ == max_size_) {
-      unknown_size_flag_ = false;
-      size_ = min_size_;
-      is_size_changed = true;
-    }
-
-    if (is_size_changed && streaming_limit_ != 0) {
-      set_streaming_limit(streaming_limit_);
-    }
-  } else {
-    if ((actual_size < part_size && offset < size_) || (offset >= size_ && actual_size > 0)) {
-      auto status = Status::Error(PSLICE() << "Failed to transfer file: " << tag("size", size_) << tag("offset", offset)
-                                           << tag("transferred size", actual_size) << tag("part size", part_size));
-      LOG(ERROR) << status << ' ' << *this;
-      return status;
-    }
-  }
-  return Status::OK();
-}
-
-void PartsManager::on_part_failed(int32 part_id) {
-  CHECK(part_status_[part_id] == PartStatus::Pending);
-  pending_count_--;
-  part_status_[part_id] = PartStatus::Empty;
-  if (part_id < first_empty_part_) {
-    first_empty_part_ = part_id;
-  }
-  if (streaming_offset_ == 0) {
-    first_streaming_empty_part_ = part_id;
-    return;
-  }
-  auto offset_part_id = narrow_cast<int>(streaming_offset_ / part_size_);
-  if (part_id >= offset_part_id && part_id < first_streaming_empty_part_) {
-    first_streaming_empty_part_ = part_id;
-  }
-}
-
-int64 PartsManager::get_size() const {
-  CHECK(!unknown_size_flag_);
-  return size_;
-}
-
-int64 PartsManager::get_size_or_zero() const {
-  return size_;
-}
-
-int64 PartsManager::get_estimated_extra() const {
-  auto total_estimated_extra = get_expected_size() - get_ready_size();
-  if (streaming_limit_ != 0) {
-    int64 part_size = get_part_size();
-    auto round_up = [part_size](int64 size) {
-      return (size + part_size - 1) / part_size * part_size;
-    };
-    int64 streaming_begin = streaming_offset_ / part_size * part_size;
-    int64 streaming_size = 0;
-    if (unknown_size_flag_) {
-      streaming_begin = min(streaming_begin, max_size_);
-      int64 streaming_end = min(round_up(streaming_offset_ + streaming_limit_), max_size_);
-      streaming_size = streaming_end - streaming_begin;
-    } else {
-      if (streaming_offset_ + streaming_limit_ <= size_) {
-        int64 streaming_end = min(round_up(streaming_offset_ + streaming_limit_), size_);
-        streaming_size = streaming_end - streaming_begin;
-      } else {
-        if (streaming_offset_ < size_) {
-          int64 prefix = min(round_up(streaming_offset_ + streaming_limit_ - size_), size_);
-          int64 suffix = size_ - streaming_begin;
-          streaming_size = min(size_, prefix + suffix);
-        }
-      }
-    }
-    int64 res = streaming_size;
-
-    //TODO: delete this block if CHECK won't fail
-    int64 sub = 0;
-    for (int part_id = 0; part_id < part_count_; part_id++) {
-      if (is_part_in_streaming_limit(part_id) && part_status_[part_id] == PartStatus::Ready) {
-        sub += get_part(part_id).size;
-      }
-    }
-    CHECK(sub == streaming_ready_size_);
-
-    res -= streaming_ready_size_;
-    CHECK(res >= 0);
-    return res;
-  }
-  return total_estimated_extra;
-}
-
-int64 PartsManager::get_ready_size() const {
-  return ready_size_;
-}
-
-int64 PartsManager::get_expected_size() const {
-  if (unknown_size_flag_) {
-    return min(max(min_size_ + static_cast<int64>(512 << 10), get_ready_size() * 2), max_size_);
-  }
-  return get_size();
-}
-
-size_t PartsManager::get_part_size() const {
-  return part_size_;
-}
-
-int32 PartsManager::get_part_count() const {
-  return part_count_;
-}
-
-Status PartsManager::init_common(const std::vector<int> &ready_parts) {
-  ready_size_ = 0;
-  streaming_ready_size_ = 0;
-  pending_count_ = 0;
-  first_empty_part_ = 0;
-  first_not_ready_part_ = 0;
-  part_status_ = vector<PartStatus>(part_count_);
-
-  for (auto i : ready_parts) {
-    if (known_prefix_flag_ && i >= static_cast<int>(known_prefix_size_ / part_size_)) {
-      CHECK(is_upload_);
-      return Status::Error("FILE_UPLOAD_RESTART");
-    }
-    if (is_upload_ && i >= part_count_) {
-      return Status::Error("FILE_UPLOAD_RESTART");
-    }
-    LOG_CHECK(0 <= i && i < part_count_) << tag("i", i)
-                                         << tag("real part_count",
-                                                std::accumulate(ready_parts.begin(), ready_parts.end(), 0,
-                                                                [](auto a, auto b) { return max(a, b + 1); }))
-                                         << ' ' << *this;
-    part_status_[i] = PartStatus::Ready;
-    bitmask_.set(i);
-    auto part = get_part(i);
-    ready_size_ += narrow_cast<int64>(part.size);
-  }
-
-  checked_prefix_size_ = get_ready_prefix_count() * narrow_cast<int64>(part_size_);
-
-  return Status::OK();
-}
-
-void PartsManager::set_need_check() {
-  need_check_ = true;
-  set_streaming_offset(0, 0);
-}
-
-void PartsManager::set_checked_prefix_size(int64 size) {
-  checked_prefix_size_ = size;
-}
-
-int64 PartsManager::get_checked_prefix_size() const {
-  return checked_prefix_size_;
-}
-
-int64 PartsManager::get_unchecked_ready_prefix_size() {
-  update_first_not_ready_part();
-  auto count = first_not_ready_part_;
-  if (count == 0) {
-    return 0;
-  }
-  auto part = get_part(count - 1);
-  int64 res = part.offset;
-  if (!unknown_size_flag_) {
-    res += narrow_cast<int64>(part.size);
-    res = min(res, get_size());
-  }
-  return res;
-}
-
-Part PartsManager::get_part(int part_id) const {
-  auto size = narrow_cast<int64>(part_size_);
-  auto offset = size * part_id;
-  auto total_size = unknown_size_flag_ ? max_size_ : get_size();
-  if (total_size < offset) {
-    size = 0;
-  } else {
-    size = min(size, total_size - offset);
-  }
-  return Part{part_id, offset, static_cast<size_t>(size)};
-}
-
-Part PartsManager::get_empty_part() {
-  return Part{-1, 0, 0};
-}
-
-void PartsManager::on_part_start(int32 part_id) {
-  CHECK(part_status_[part_id] == PartStatus::Empty);
-  part_status_[part_id] = PartStatus::Pending;
-  pending_count_++;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const PartsManager &parts_manager) {
-  return string_builder << "PartsManager[" << (parts_manager.is_upload_ ? "up" : "down")
-                        << "load, need_check = " << parts_manager.need_check_
-                        << ", checked_prefix_size = " << parts_manager.checked_prefix_size_
-                        << ", known_prefix = " << parts_manager.known_prefix_flag_
-                        << ", known_prefix_size = " << parts_manager.known_prefix_size_
-                        << ", size = " << parts_manager.size_ << ", expected_size = " << parts_manager.expected_size_
-                        << ", min_size = " << parts_manager.min_size_ << ", max_size = " << parts_manager.max_size_
-                        << ", unknown_size = " << parts_manager.unknown_size_flag_
-                        << ", ready_size = " << parts_manager.ready_size_
-                        << ", streaming_ready_size = " << parts_manager.streaming_ready_size_
-                        << ", part_size = " << parts_manager.part_size_
-                        << ", part_count = " << parts_manager.part_count_
-                        << ", pending_count = " << parts_manager.pending_count_
-                        << ", first_empty_part = " << parts_manager.first_empty_part_
-                        << ", first_not_ready_part = " << parts_manager.first_not_ready_part_
-                        << ", streaming_offset = " << parts_manager.streaming_offset_
-                        << ", streaming_limit = " << parts_manager.streaming_limit_
-                        << ", first_streaming_empty_part = " << parts_manager.first_streaming_empty_part_
-                        << ", first_streaming_not_ready_part = " << parts_manager.first_streaming_not_ready_part_
-                        << ", use_part_count_limit = " << parts_manager.use_part_count_limit_
-                        << ", part_status_count = " << parts_manager.part_status_.size() << ": "
-                        << parts_manager.bitmask_ << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/PartsManager.h b/third-party/td/td/td/telegram/files/PartsManager.h
deleted file mode 100644
index 6937a45eaf..0000000000
--- a/third-party/td/td/td/telegram/files/PartsManager.h
+++ /dev/null
@@ -1,114 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileBitmask.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct Part {
-  int id;
-  int64 offset;
-  size_t size;
-};
-
-class PartsManager {
- public:
-  Status init(int64 size, int64 expected_size, bool is_size_final, size_t part_size,
-              const std::vector<int> &ready_parts, bool use_part_count_limit, bool is_upload) TD_WARN_UNUSED_RESULT;
-  bool may_finish();
-  bool ready();
-  bool unchecked_ready();
-  Status finish() TD_WARN_UNUSED_RESULT;
-
-  // returns empty part if nothing to return
-  Result<Part> start_part() TD_WARN_UNUSED_RESULT;
-  Status on_part_ok(int part_id, size_t part_size, size_t actual_size) TD_WARN_UNUSED_RESULT;
-  void on_part_failed(int part_id);
-  Status set_known_prefix(int64 size, bool is_ready);
-  void set_need_check();
-  void set_checked_prefix_size(int64 size);
-  int32 set_streaming_offset(int64 offset, int64 limit);
-  void set_streaming_limit(int64 limit);
-
-  int64 get_checked_prefix_size() const;
-  int64 get_unchecked_ready_prefix_size();
-  int64 get_size() const;
-  int64 get_size_or_zero() const;
-  int64 get_estimated_extra() const;
-  int64 get_ready_size() const;
-  size_t get_part_size() const;
-  int32 get_part_count() const;
-  int32 get_unchecked_ready_prefix_count();
-  int32 get_ready_prefix_count();
-  int64 get_streaming_offset() const;
-  string get_bitmask();
-
- private:
-  static constexpr int MAX_PART_COUNT = 4000;
-  static constexpr int MAX_PART_COUNT_PREMIUM = 8000;
-  static constexpr size_t MAX_PART_SIZE = 512 << 10;
-  static constexpr int64 MAX_FILE_SIZE = static_cast<int64>(MAX_PART_SIZE) * MAX_PART_COUNT_PREMIUM;
-
-  enum class PartStatus : int32 { Empty, Pending, Ready };
-
-  bool is_upload_{false};
-  bool need_check_{false};
-  int64 checked_prefix_size_{0};
-
-  bool known_prefix_flag_{false};
-  int64 known_prefix_size_{0};
-
-  int64 size_{0};
-  int64 expected_size_{0};
-  int64 min_size_{0};
-  int64 max_size_{0};
-  bool unknown_size_flag_{false};
-  int64 ready_size_{0};
-  int64 streaming_ready_size_{0};
-
-  size_t part_size_{0};
-  int part_count_{0};
-  int pending_count_{0};
-  int first_empty_part_{0};
-  int first_not_ready_part_{0};
-  int64 streaming_offset_{0};
-  int64 streaming_limit_{0};
-  int first_streaming_empty_part_{0};
-  int first_streaming_not_ready_part_{0};
-  vector<PartStatus> part_status_;
-  Bitmask bitmask_;
-  bool use_part_count_limit_{false};
-
-  Status init_common(const vector<int> &ready_parts);
-  Status init_known_prefix(int64 known_prefix, size_t part_size,
-                           const std::vector<int> &ready_parts) TD_WARN_UNUSED_RESULT;
-  Status init_no_size(size_t part_size, const std::vector<int> &ready_parts) TD_WARN_UNUSED_RESULT;
-
-  static Part get_empty_part();
-
-  Part get_part(int part_id) const;
-  void on_part_start(int part_id);
-  void update_first_empty_part();
-  void update_first_not_ready_part();
-
-  int64 get_expected_size() const;
-
-  bool is_streaming_limit_reached();
-
-  bool is_part_in_streaming_limit(int part_id) const;
-
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const PartsManager &parts_manager);
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const PartsManager &parts_manager);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/ResourceManager.cpp b/third-party/td/td/td/telegram/files/ResourceManager.cpp
deleted file mode 100644
index 5dacada799..0000000000
--- a/third-party/td/td/td/telegram/files/ResourceManager.cpp
+++ /dev/null
@@ -1,187 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/ResourceManager.h"
-
-#include "td/telegram/files/FileLoaderUtils.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-
-#include <algorithm>
-
-namespace td {
-
-void ResourceManager::register_worker(ActorShared<FileLoaderActor> callback, int8 priority) {
-  auto node_id = nodes_container_.create();
-  auto *node_ptr = nodes_container_.get(node_id);
-  *node_ptr = make_unique<Node>();
-  auto *node = (*node_ptr).get();
-  CHECK(node);
-  node->node_id = node_id;
-  node->callback_ = std::move(callback);
-
-  add_node(node_id, priority);
-  send_closure(node->callback_, &FileLoaderActor::set_resource_manager, actor_shared(this, node_id));
-}
-
-void ResourceManager::update_priority(int8 priority) {
-  if (stop_flag_) {
-    return;
-  }
-  auto node_id = get_link_token();
-  if (!remove_node(node_id)) {
-    return;
-  }
-  add_node(node_id, priority);
-}
-
-void ResourceManager::update_resources(const ResourceState &resource_state) {
-  if (stop_flag_) {
-    return;
-  }
-  auto node_id = get_link_token();
-  auto node_ptr = nodes_container_.get(node_id);
-  if (node_ptr == nullptr) {
-    return;
-  }
-  auto node = (*node_ptr).get();
-  CHECK(node);
-  VLOG(file_loader) << "Before total: " << resource_state_ << "; node " << node_id << ": " << node->resource_state_;
-  resource_state_ -= node->resource_state_;
-  node->resource_state_.update_master(resource_state);
-  resource_state_ += node->resource_state_;
-  VLOG(file_loader) << "After total: " << resource_state_ << "; node " << node_id << ": " << node->resource_state_;
-
-  if (mode_ == Mode::Greedy) {
-    add_to_heap(node);
-  }
-  loop();
-}
-
-void ResourceManager::hangup() {
-  stop_flag_ = true;
-  loop();
-}
-
-void ResourceManager::hangup_shared() {
-  auto node_id = get_link_token();
-  auto node_ptr = nodes_container_.get(node_id);
-  if (node_ptr == nullptr) {
-    return;
-  }
-  auto node = (*node_ptr).get();
-  CHECK(node);
-  if (node->in_heap()) {
-    by_estimated_extra_.erase(node->as_heap_node());
-  }
-  resource_state_ -= node->resource_state_;
-  remove_node(node_id);
-  nodes_container_.erase(node_id);
-  loop();
-}
-
-void ResourceManager::add_to_heap(Node *node) {
-  auto *heap_node = node->as_heap_node();
-  auto key = node->resource_state_.estimated_extra();
-  if (heap_node->in_heap()) {
-    if (key != 0) {
-      by_estimated_extra_.fix(key, heap_node);
-    } else {
-      by_estimated_extra_.erase(heap_node);
-    }
-  } else {
-    if (key != 0) {
-      by_estimated_extra_.insert(key, heap_node);
-    }
-  }
-}
-
-bool ResourceManager::satisfy_node(NodeId file_node_id) {
-  auto file_node_ptr = nodes_container_.get(file_node_id);
-  CHECK(file_node_ptr);
-  auto file_node = (*file_node_ptr).get();
-  CHECK(file_node);
-  auto part_size = narrow_cast<int64>(file_node->resource_state_.unit_size());
-  auto need = file_node->resource_state_.estimated_extra();
-  VLOG(file_loader) << tag("need", need) << tag("part_size", part_size);
-  need = (need + part_size - 1) / part_size * part_size;
-  VLOG(file_loader) << tag("need", need);
-  if (need == 0) {
-    return true;
-  }
-  auto give = resource_state_.unused();
-  give = min(need, give);
-  give -= give % part_size;
-  VLOG(file_loader) << tag("give", give);
-  if (give == 0) {
-    return false;
-  }
-  resource_state_.start_use(give);
-  file_node->resource_state_.update_limit(give);
-  send_closure(file_node->callback_, &FileLoaderActor::update_resources, file_node->resource_state_);
-  return true;
-}
-
-void ResourceManager::loop() {
-  if (stop_flag_) {
-    if (nodes_container_.empty()) {
-      stop();
-    }
-    return;
-  }
-  auto active_limit = resource_state_.active_limit();
-  resource_state_.update_limit(max_resource_limit_ - active_limit);
-  LOG(INFO) << tag("unused", resource_state_.unused());
-
-  if (mode_ == Mode::Greedy) {
-    std::vector<Node *> to_add;
-    while (!by_estimated_extra_.empty()) {
-      auto *node = Node::from_heap_node(by_estimated_extra_.pop());
-      SCOPE_EXIT {
-        to_add.push_back(node);
-      };
-      if (!satisfy_node(node->node_id)) {
-        break;
-      }
-    }
-    for (auto *node : to_add) {
-      add_to_heap(node);
-    }
-  } else if (mode_ == Mode::Baseline) {
-    // plain
-    for (auto &it : to_xload_) {
-      auto file_node_id = it.second;
-      if (!satisfy_node(file_node_id)) {
-        break;
-      }
-    }
-  }
-}
-
-void ResourceManager::add_node(NodeId node_id, int8 priority) {
-  if (priority >= 0) {
-    auto it = std::find_if(to_xload_.begin(), to_xload_.end(), [&](auto &x) { return x.first <= priority; });
-    to_xload_.insert(it, std::make_pair(priority, node_id));
-  } else {
-    auto it = std::find_if(to_xload_.begin(), to_xload_.end(), [&](auto &x) { return x.first < -priority; });
-    to_xload_.insert(it, std::make_pair(narrow_cast<int8>(-priority), node_id));
-  }
-}
-
-bool ResourceManager::remove_node(NodeId node_id) {
-  auto it = std::find_if(to_xload_.begin(), to_xload_.end(), [&](auto &x) { return x.second == node_id; });
-  if (it != to_xload_.end()) {
-    to_xload_.erase(it);
-    return true;
-  }
-  return false;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/ResourceManager.h b/third-party/td/td/td/telegram/files/ResourceManager.h
deleted file mode 100644
index e16aa3a872..0000000000
--- a/third-party/td/td/td/telegram/files/ResourceManager.h
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileLoaderActor.h"
-#include "td/telegram/files/ResourceState.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/Heap.h"
-
-#include <utility>
-
-namespace td {
-
-class ResourceManager final : public Actor {
- public:
-  enum class Mode : int32 { Baseline, Greedy };
-  ResourceManager(int64 max_resource_limit, Mode mode) : max_resource_limit_(max_resource_limit), mode_(mode) {
-  }
-  // use through ActorShared
-  void update_priority(int8 priority);
-  void update_resources(const ResourceState &resource_state);
-
-  void register_worker(ActorShared<FileLoaderActor> callback, int8 priority);
-
- private:
-  int64 max_resource_limit_ = 0;
-  Mode mode_;
-
-  using NodeId = uint64;
-  struct Node final : public HeapNode {
-    NodeId node_id = 0;
-
-    ResourceState resource_state_;
-    ActorShared<FileLoaderActor> callback_;
-
-    HeapNode *as_heap_node() {
-      return static_cast<HeapNode *>(this);
-    }
-    static Node *from_heap_node(HeapNode *heap_node) {
-      return static_cast<Node *>(heap_node);
-    }
-  };
-
-  Container<unique_ptr<Node>> nodes_container_;
-  vector<std::pair<int8, NodeId>> to_xload_;
-  KHeap<int64> by_estimated_extra_;
-  ResourceState resource_state_;
-
-  ActorShared<> parent_;
-  bool stop_flag_ = false;
-
-  void hangup() final;
-
-  void hangup_shared() final;
-
-  void loop() final;
-
-  void add_to_heap(Node *node);
-  bool satisfy_node(NodeId file_node_id);
-  void add_node(NodeId node_id, int8 priority);
-  bool remove_node(NodeId node_id);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/ResourceState.cpp b/third-party/td/td/td/telegram/files/ResourceState.cpp
deleted file mode 100644
index 589c289d8e..0000000000
--- a/third-party/td/td/td/telegram/files/ResourceState.cpp
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/files/ResourceState.h"
-
-#include "td/utils/format.h"
-
-namespace td {
-
-void ResourceState::start_use(int64 x) {
-  using_ += x;
-  CHECK(used_ + using_ <= limit_);
-}
-
-void ResourceState::stop_use(int64 x) {
-  CHECK(x <= using_);
-  using_ -= x;
-  used_ += x;
-}
-
-void ResourceState::update_limit(int64 extra) {
-  limit_ += extra;
-}
-
-bool ResourceState::update_estimated_limit(int64 extra) {
-  // unused() must be positive, i.e. used_ + using_ must be less than limit_
-  // TODO: use exact intersection between using_ and extra.
-  auto using_and_extra_intersection = min(using_, extra);  // between 0 and min(using_, extra)
-  auto new_estimated_limit = used_ + using_ + extra - using_and_extra_intersection;
-
-  // Use extra extra limit
-  if (new_estimated_limit < limit_) {
-    auto extra_limit = limit_ - new_estimated_limit;
-    used_ += extra_limit;
-    new_estimated_limit += extra_limit;
-  }
-
-  if (new_estimated_limit == estimated_limit_) {
-    return false;
-  }
-  estimated_limit_ = new_estimated_limit;
-  return true;
-}
-
-int64 ResourceState::active_limit() const {
-  return limit_ - used_;
-}
-
-int64 ResourceState::unused() const {
-  return limit_ - using_ - used_;
-}
-
-int64 ResourceState::estimated_extra() const {
-  auto new_unused = max(limit_, estimated_limit_) - using_ - used_;
-  new_unused = static_cast<int64>((new_unused + unit_size() - 1) / unit_size() * unit_size());
-  return new_unused + using_ + used_ - limit_;
-}
-
-ResourceState &ResourceState::operator+=(const ResourceState &other) {
-  using_ += other.active_limit();
-  used_ += other.used_;
-  return *this;
-}
-
-ResourceState &ResourceState::operator-=(const ResourceState &other) {
-  using_ -= other.active_limit();
-  used_ -= other.used_;
-  return *this;
-}
-
-void ResourceState::update_master(const ResourceState &other) {
-  estimated_limit_ = other.estimated_limit_;
-  used_ = other.used_;
-  using_ = other.using_;
-  unit_size_ = other.unit_size_;
-}
-
-void ResourceState::update_slave(const ResourceState &other) {
-  limit_ = other.limit_;
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const ResourceState &state) {
-  return sb << tag("estimated_limit", state.estimated_limit_) << tag("used", state.used_) << tag("using", state.using_)
-            << tag("limit", state.limit_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/files/ResourceState.h b/third-party/td/td/td/telegram/files/ResourceState.h
deleted file mode 100644
index f49dce0e56..0000000000
--- a/third-party/td/td/td/telegram/files/ResourceState.h
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class ResourceState {
- public:
-  void start_use(int64 x);
-
-  void stop_use(int64 x);
-
-  void update_limit(int64 extra);
-
-  bool update_estimated_limit(int64 extra);
-
-  void set_unit_size(size_t new_unit_size) {
-    unit_size_ = new_unit_size;
-  }
-
-  int64 active_limit() const;
-
-  int64 get_using() const {
-    return using_;
-  }
-
-  int64 unused() const;
-
-  int64 estimated_extra() const;
-
-  size_t unit_size() const {
-    return unit_size_;
-  }
-
-  ResourceState &operator+=(const ResourceState &other);
-
-  ResourceState &operator-=(const ResourceState &other);
-
-  void update_master(const ResourceState &other);
-
-  void update_slave(const ResourceState &other);
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const ResourceState &state);
-
- private:
-  int64 estimated_limit_ = 0;  // me
-  int64 limit_ = 0;            // master
-  int64 used_ = 0;             // me
-  int64 using_ = 0;            // me
-  size_t unit_size_ = 1;       // me
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const ResourceState &state);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/logevent/LogEvent.h b/third-party/td/td/td/telegram/logevent/LogEvent.h
deleted file mode 100644
index 915d9266ed..0000000000
--- a/third-party/td/td/td/telegram/logevent/LogEvent.h
+++ /dev/null
@@ -1,254 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Global.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-
-namespace td {
-namespace log_event {
-
-template <class ParentT>
-class WithVersion : public ParentT {
- public:
-  using ParentT::ParentT;
-  void set_version(int32 version) {
-    version_ = version;
-  }
-  int32 version() const {
-    return version_;
-  }
-
- private:
-  int32 version_{};
-};
-
-template <class ParentT, class ContextT>
-class WithContext : public ParentT {
- public:
-  using ParentT::ParentT;
-  void set_context(ContextT context) {
-    context_ = context;
-  }
-  ContextT context() const {
-    return context_;
-  }
-
- private:
-  ContextT context_{};
-};
-
-class LogEvent {
- public:
-  LogEvent() = default;
-  LogEvent(const LogEvent &) = delete;
-  LogEvent &operator=(const LogEvent &) = delete;
-  virtual ~LogEvent() = default;
-  enum HandlerType : uint32 {
-    SecretChats = 1,
-    Users = 2,
-    Chats = 3,
-    Channels = 4,
-    SecretChatInfos = 5,
-    WebPages = 0x10,
-    SetPollAnswer = 0x20,
-    StopPoll = 0x21,
-    SendMessage = 0x100,
-    DeleteMessage = 0x101,
-    DeleteMessagesOnServer = 0x102,
-    ReadHistoryOnServer = 0x103,
-    ForwardMessages = 0x104,
-    ReadMessageContentsOnServer = 0x105,
-    SendBotStartMessage = 0x106,
-    SendScreenshotTakenNotificationMessage = 0x107,
-    SendInlineQueryResultMessage = 0x108,
-    DeleteDialogHistoryOnServer = 0x109,
-    ReadAllDialogMentionsOnServer = 0x10a,
-    DeleteAllChannelMessagesFromSenderOnServer = 0x10b,
-    ToggleDialogIsPinnedOnServer = 0x10c,
-    ReorderPinnedDialogsOnServer = 0x10d,
-    SaveDialogDraftMessageOnServer = 0x10e,
-    UpdateDialogNotificationSettingsOnServer = 0x10f,
-    UpdateScopeNotificationSettingsOnServer = 0x110,
-    ResetAllNotificationSettingsOnServer = 0x111,
-    ToggleDialogReportSpamStateOnServer = 0x112,
-    RegetDialog = 0x113,
-    ReadHistoryInSecretChat = 0x114,
-    ToggleDialogIsMarkedAsUnreadOnServer = 0x115,
-    SetDialogFolderIdOnServer = 0x116,
-    DeleteScheduledMessagesOnServer = 0x117,
-    ToggleDialogIsBlockedOnServer = 0x118,
-    ReadMessageThreadHistoryOnServer = 0x119,
-    BlockMessageSenderFromRepliesOnServer = 0x120,
-    UnpinAllDialogMessagesOnServer = 0x121,
-    DeleteAllCallMessagesOnServer = 0x122,
-    DeleteDialogMessagesByDateOnServer = 0x123,
-    ReadAllDialogReactionsOnServer = 0x124,
-    DeleteTopicHistoryOnServer = 0x125,
-    ToggleDialogIsTranslatableOnServer = 0x126,
-    ToggleDialogViewAsMessagesOnServer = 0x127,
-    SendQuickReplyShortcutMessages = 0x128,
-    UpdateReactionNotificationSettingsOnServer = 0x129,
-    GetChannelDifference = 0x140,
-    AddMessagePushNotification = 0x200,
-    EditMessagePushNotification = 0x201,
-    SaveAppLog = 0x300,
-    DeleteStoryOnServer = 0x400,
-    ReadStoriesOnServer = 0x401,
-    LoadDialogExpiringStories = 0x402,
-    SendStory = 0x403,
-    EditStory = 0x404,
-    ChangeAuthorizationSettingsOnServer = 0x500,
-    ResetAuthorizationOnServer = 0x501,
-    ResetAuthorizationsOnServer = 0x502,
-    SetDefaultHistoryTtlOnServer = 0x503,
-    SetAccountTtlOnServer = 0x504,
-    SetAuthorizationTtlOnServer = 0x505,
-    ResetWebAuthorizationOnServer = 0x506,
-    ResetWebAuthorizationsOnServer = 0x507,
-    InvalidateSignInCodesOnServer = 0x508,
-    ConfigPmcMagic = 0x1f18,
-    BinlogPmcMagic = 0x4327
-  };
-
-  using Id = uint64;
-
-  Id log_event_id() const {
-    return log_event_id_;
-  }
-  void set_log_event_id(Id log_event_id) {
-    log_event_id_ = log_event_id;
-  }
-
-  virtual StringBuilder &print(StringBuilder &sb) const {
-    return sb << "[Logevent " << tag("id", log_event_id()) << "]";
-  }
-
- private:
-  Id log_event_id_{};
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const LogEvent &log_event) {
-  return log_event.print(sb);
-}
-
-class LogEventParser final : public WithVersion<WithContext<TlParser, Global *>> {
- public:
-  explicit LogEventParser(Slice data) : WithVersion<WithContext<TlParser, Global *>>(data) {
-    set_version(fetch_int());
-    LOG_CHECK(version() < static_cast<int32>(Version::Next)) << "Wrong version " << version();
-    set_context(G());
-  }
-};
-
-class LogEventStorerCalcLength final : public WithContext<TlStorerCalcLength, Global *> {
- public:
-  LogEventStorerCalcLength() : WithContext<TlStorerCalcLength, Global *>() {
-    store_int(static_cast<int32>(Version::Next) - 1);
-    set_context(G());
-  }
-};
-
-class LogEventStorerUnsafe final : public WithContext<TlStorerUnsafe, Global *> {
- public:
-  explicit LogEventStorerUnsafe(unsigned char *buf) : WithContext<TlStorerUnsafe, Global *>(buf) {
-    store_int(static_cast<int32>(Version::Next) - 1);
-    set_context(G());
-  }
-};
-
-template <class T>
-class LogEventStorerImpl final : public Storer {
- public:
-  explicit LogEventStorerImpl(const T &event) : event_(event) {
-  }
-
-  size_t size() const final {
-    LogEventStorerCalcLength storer;
-    td::store(event_, storer);
-    return storer.get_length();
-  }
-  size_t store(uint8 *ptr) const final {
-    LogEventStorerUnsafe storer(ptr);
-    td::store(event_, storer);
-#ifdef TD_DEBUG
-    T check_result;
-    log_event_parse(check_result, Slice(ptr, storer.get_buf())).ensure();
-#endif
-    return static_cast<size_t>(storer.get_buf() - ptr);
-  }
-
- private:
-  const T &event_;
-};
-
-}  // namespace log_event
-
-using LogEvent = log_event::LogEvent;
-using LogEventParser = log_event::LogEventParser;
-using LogEventStorerCalcLength = log_event::LogEventStorerCalcLength;
-using LogEventStorerUnsafe = log_event::LogEventStorerUnsafe;
-
-template <class T>
-Status log_event_parse(T &data, Slice slice) TD_WARN_UNUSED_RESULT;
-
-template <class T>
-Status log_event_parse(T &data, Slice slice) {
-  LogEventParser parser(slice);
-  parse(data, parser);
-  parser.fetch_end();
-  return parser.get_status();
-}
-
-inline int32 log_event_get_version(Slice slice) {
-  LogEventParser parser(slice);
-  return parser.version();
-}
-
-template <class T>
-BufferSlice log_event_store_impl(const T &data, const char *file, int line) {
-  LogEventStorerCalcLength storer_calc_length;
-  store(data, storer_calc_length);
-
-  BufferSlice value_buffer{storer_calc_length.get_length()};
-  auto ptr = value_buffer.as_mutable_slice().ubegin();
-  LOG_CHECK(is_aligned_pointer<4>(ptr)) << ptr;
-
-  LogEventStorerUnsafe storer_unsafe(ptr);
-  store(data, storer_unsafe);
-
-#ifdef TD_DEBUG
-  T check_result;
-  auto status = log_event_parse(check_result, value_buffer.as_slice());
-  if (status.is_error()) {
-    LOG(FATAL) << status << ' ' << file << ' ' << line;
-  }
-#endif
-  return value_buffer;
-}
-
-#define log_event_store(data) log_event_store_impl((data), __FILE__, __LINE__)
-
-template <class T>
-log_event::LogEventStorerImpl<T> get_log_event_storer(const T &event) {
-  return log_event::LogEventStorerImpl<T>(event);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/logevent/LogEventHelper.cpp b/third-party/td/td/td/telegram/logevent/LogEventHelper.cpp
deleted file mode 100644
index 928c561dba..0000000000
--- a/third-party/td/td/td/telegram/logevent/LogEventHelper.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/logevent/LogEventHelper.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/db/binlog/BinlogHelper.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-void add_log_event(LogEventIdWithGeneration &log_event_id, const Storer &storer, uint32 type, Slice name) {
-  LOG(INFO) << "Save " << name << " to binlog";
-  if (log_event_id.log_event_id == 0) {
-    log_event_id.log_event_id = binlog_add(G()->td_db()->get_binlog(), type, storer);
-    LOG(INFO) << "Add " << name << " log event " << log_event_id.log_event_id;
-  } else {
-    auto new_log_event_id = binlog_rewrite(G()->td_db()->get_binlog(), log_event_id.log_event_id, type, storer);
-    LOG(INFO) << "Rewrite " << name << " log event " << log_event_id.log_event_id << " with " << new_log_event_id;
-  }
-  log_event_id.generation++;
-}
-
-void delete_log_event(LogEventIdWithGeneration &log_event_id, uint64 generation, Slice name) {
-  LOG(INFO) << "Finish to process " << name << " log event " << log_event_id.log_event_id << " with generation "
-            << generation;
-  if (log_event_id.generation == generation) {
-    CHECK(log_event_id.log_event_id != 0);
-    LOG(INFO) << "Delete " << name << " log event " << log_event_id.log_event_id;
-    binlog_erase(G()->td_db()->get_binlog(), log_event_id.log_event_id);
-    log_event_id.log_event_id = 0;
-  }
-}
-
-Promise<Unit> get_erase_log_event_promise(uint64 log_event_id, Promise<Unit> promise) {
-  if (log_event_id == 0) {
-    return promise;
-  }
-
-  return PromiseCreator::lambda([log_event_id, promise = std::move(promise)](Result<Unit> result) mutable {
-    if (!G()->close_flag()) {
-      binlog_erase(G()->td_db()->get_binlog(), log_event_id);
-    }
-
-    promise.set_result(std::move(result));
-  });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/logevent/LogEventHelper.h b/third-party/td/td/td/telegram/logevent/LogEventHelper.h
deleted file mode 100644
index c935097bdd..0000000000
--- a/third-party/td/td/td/telegram/logevent/LogEventHelper.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Global.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-struct LogEventIdWithGeneration {
-  uint64 log_event_id = 0;
-  uint64 generation = 0;
-};
-
-void add_log_event(LogEventIdWithGeneration &log_event_id, const Storer &storer, uint32 type, Slice name);
-
-void delete_log_event(LogEventIdWithGeneration &log_event_id, uint64 generation, Slice name);
-
-Promise<Unit> get_erase_log_event_promise(uint64 log_event_id, Promise<Unit> promise = Promise<Unit>());
-
-template <class StorerT>
-void store_time(double time_at, StorerT &storer) {
-  if (time_at == 0) {
-    store(-1.0, storer);
-  } else {
-    double time_left = max(time_at - Time::now(), 0.0);
-    store(time_left, storer);
-    store(get_global_server_time(), storer);
-  }
-}
-
-template <class ParserT>
-void parse_time(double &time_at, ParserT &parser) {
-  double time_left;
-  parse(time_left, parser);
-  if (time_left < -0.1) {
-    time_at = 0;
-  } else {
-    double old_server_time;
-    parse(old_server_time, parser);
-    double passed_server_time = max(parser.context()->server_time() - old_server_time, 0.0);
-    time_left = max(time_left - passed_server_time, 0.0);
-    time_at = Time::now_cached() + time_left;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/logevent/SecretChatEvent.h b/third-party/td/td/td/telegram/logevent/SecretChatEvent.h
deleted file mode 100644
index bba7f7d1b3..0000000000
--- a/third-party/td/td/td/telegram/logevent/SecretChatEvent.h
+++ /dev/null
@@ -1,521 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/EncryptedFile.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/Promise.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-
-#include <type_traits>
-
-namespace td {
-namespace log_event {
-
-namespace detail {
-
-template <class T>
-class StorerImpl final : public Storer {
- public:
-  explicit StorerImpl(const T &event) : event_(event) {
-  }
-
-  size_t size() const final {
-    WithContext<TlStorerCalcLength, Global *> storer;
-    storer.set_context(G());
-
-    storer.store_int(T::version());
-    td::store(static_cast<int32>(event_.get_type()), storer);
-    td::store(event_, storer);
-    return storer.get_length();
-  }
-  size_t store(uint8 *ptr) const final {
-    WithContext<TlStorerUnsafe, Global *> storer(ptr);
-    storer.set_context(G());
-
-    storer.store_int(T::version());
-    td::store(static_cast<int32>(event_.get_type()), storer);
-    td::store(event_, storer);
-    return static_cast<size_t>(storer.get_buf() - ptr);
-  }
-
- private:
-  const T &event_;
-};
-
-}  // namespace detail
-
-class SecretChatEvent : public LogEvent {
- public:
-  // append only enum
-  enum class Type : int32 {
-    InboundSecretMessage = 1,
-    OutboundSecretMessage = 2,
-    CloseSecretChat = 3,
-    CreateSecretChat = 4
-  };
-
-  virtual Type get_type() const = 0;
-
-  static constexpr int32 version() {
-    return 4;
-  }
-
-  template <class F>
-  static void downcast_call(Type type, F &&f);
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    downcast_call(get_type(),
-                  [&](auto *ptr) { static_cast<const std::decay_t<decltype(*ptr)> *>(this)->store(storer); });
-  }
-
-  static Result<unique_ptr<SecretChatEvent>> from_buffer_slice(BufferSlice slice) {
-    WithVersion<WithContext<TlBufferParser, Global *>> parser{&slice};
-    auto version = parser.fetch_int();
-    parser.set_version(version);
-    parser.set_context(G());
-    auto magic = static_cast<Type>(parser.fetch_int());
-
-    unique_ptr<SecretChatEvent> event;
-    downcast_call(magic, [&](auto *ptr) {
-      auto tmp = make_unique<std::decay_t<decltype(*ptr)>>();
-      tmp->parse(parser);
-      event = std::move(tmp);
-    });
-    parser.fetch_end();
-    TRY_STATUS(parser.get_status());
-    if (event != nullptr) {
-      return std::move(event);
-    }
-    return Status::Error(PSLICE() << "Unknown SecretChatEvent type: " << format::as_hex(magic));
-  }
-};
-
-template <class ChildT>
-class SecretChatLogEventBase : public SecretChatEvent {
- public:
-  typename SecretChatEvent::Type get_type() const final {
-    return ChildT::type;
-  }
-
-  constexpr int32 magic() const {
-    return static_cast<int32>(get_type());
-  }
-};
-
-// Internal structure
-
-// inputEncryptedFileEmpty#1837c364 = InputEncryptedFile;
-// inputEncryptedFileUploaded#64bd0306 id:long parts:int md5_checksum:string key_fingerprint:int = InputEncryptedFile;
-// inputEncryptedFile#5a17b5e5 id:long access_hash:long = InputEncryptedFile;
-// inputEncryptedFileBigUploaded#2dc173c8 id:long parts:int key_fingerprint:int = InputEncryptedFile;
-struct EncryptedInputFile {
-  static constexpr int32 MAGIC = 0x4328d38a;
-  enum Type : int32 { Empty = 0, Uploaded = 1, BigUploaded = 2, Location = 3 } type = Type::Empty;
-  int64 id = 0;
-  int64 access_hash = 0;
-  int32 parts = 0;
-  int32 key_fingerprint = 0;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    store(MAGIC, storer);
-    store(type, storer);
-    store(id, storer);
-    store(access_hash, storer);
-    store(parts, storer);
-    store(key_fingerprint, storer);
-  }
-
-  EncryptedInputFile() = default;
-  EncryptedInputFile(Type type, int64 id, int64 access_hash, int32 parts, int32 key_fingerprint)
-      : type(type), id(id), access_hash(access_hash), parts(parts), key_fingerprint(key_fingerprint) {
-  }
-
-  bool empty() const {
-    return type == Empty;
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    int32 stored_magic;
-
-    parse(stored_magic, parser);
-    parse(type, parser);
-    parse(id, parser);
-    parse(access_hash, parser);
-    parse(parts, parser);
-    parse(key_fingerprint, parser);
-
-    if (stored_magic != MAGIC) {
-      parser.set_error("EncryptedInputFile magic mismatch");
-      return;
-    }
-  }
-  static EncryptedInputFile from_input_encrypted_file(
-      const telegram_api::object_ptr<telegram_api::InputEncryptedFile> &from) {
-    if (from == nullptr) {
-      return EncryptedInputFile();
-    }
-    switch (from->get_id()) {
-      case telegram_api::inputEncryptedFileEmpty::ID:
-        return EncryptedInputFile{Empty, 0, 0, 0, 0};
-      case telegram_api::inputEncryptedFileUploaded::ID: {
-        auto &uploaded = static_cast<const telegram_api::inputEncryptedFileUploaded &>(*from);
-        return EncryptedInputFile{Uploaded, uploaded.id_, 0, uploaded.parts_, uploaded.key_fingerprint_};
-      }
-      case telegram_api::inputEncryptedFileBigUploaded::ID: {
-        auto &uploaded = static_cast<const telegram_api::inputEncryptedFileBigUploaded &>(*from);
-        return EncryptedInputFile{BigUploaded, uploaded.id_, 0, uploaded.parts_, uploaded.key_fingerprint_};
-      }
-      case telegram_api::inputEncryptedFile::ID: {
-        auto &uploaded = static_cast<const telegram_api::inputEncryptedFile &>(*from);
-        return EncryptedInputFile{Location, uploaded.id_, uploaded.access_hash_, 0, 0};
-      }
-      default:
-        UNREACHABLE();
-        return EncryptedInputFile();
-    }
-  }
-
-  telegram_api::object_ptr<telegram_api::InputEncryptedFile> as_input_encrypted_file() const {
-    switch (type) {
-      case Empty:
-        return make_tl_object<telegram_api::inputEncryptedFileEmpty>();
-      case Uploaded:
-        return make_tl_object<telegram_api::inputEncryptedFileUploaded>(id, parts, "", key_fingerprint);
-      case BigUploaded:
-        return make_tl_object<telegram_api::inputEncryptedFileBigUploaded>(id, parts, key_fingerprint);
-      case Location:
-        return make_tl_object<telegram_api::inputEncryptedFile>(id, access_hash);
-    }
-    UNREACHABLE();
-    return nullptr;
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const EncryptedInputFile &file) {
-  return sb << to_string(file.as_input_encrypted_file());
-}
-
-// LogEvents
-// TODO: QTS and SeqNoState could be just Logevents that are updated during regenerate
-class InboundSecretMessage final : public SecretChatLogEventBase<InboundSecretMessage> {
- public:
-  static constexpr Type type = SecretChatEvent::Type::InboundSecretMessage;
-
-  int32 chat_id = 0;
-  int32 date = 0;
-
-  BufferSlice encrypted_message;  // empty when we store event to binlog
-  Promise<Unit> promise;
-
-  bool is_checked = false;
-  // after decrypted and checked
-  tl_object_ptr<secret_api::decryptedMessageLayer> decrypted_message_layer;
-
-  uint64 auth_key_id = 0;
-  int32 message_id = 0;
-  int32 my_in_seq_no = -1;
-  int32 my_out_seq_no = -1;
-  int32 his_in_seq_no = -1;
-
-  int32 his_layer() const {
-    return decrypted_message_layer->layer_;
-  }
-
-  unique_ptr<EncryptedFile> file;
-
-  bool is_pending = false;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-
-    bool has_encrypted_file = file != nullptr;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(has_encrypted_file);
-    STORE_FLAG(is_pending);
-    STORE_FLAG(true);
-    END_STORE_FLAGS();
-
-    store(chat_id, storer);
-    store(date, storer);
-    // skip encrypted_message
-    // skip promise
-
-    // TODO
-    decrypted_message_layer->store(storer);
-    storer.store_long(static_cast<int64>(auth_key_id));
-
-    store(message_id, storer);
-    store(my_in_seq_no, storer);
-    store(my_out_seq_no, storer);
-    store(his_in_seq_no, storer);
-    if (has_encrypted_file) {
-      store(file, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-
-    bool has_encrypted_file;
-    bool no_qts;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(has_encrypted_file);
-    PARSE_FLAG(is_pending);
-    PARSE_FLAG(no_qts);
-    END_PARSE_FLAGS();
-
-    if (!no_qts) {
-      int32 legacy_qts;
-      parse(legacy_qts, parser);
-    }
-    parse(chat_id, parser);
-    parse(date, parser);
-    // skip encrypted_message
-    // skip promise
-
-    // TODO
-    decrypted_message_layer = secret_api::decryptedMessageLayer::fetch(parser);
-    auth_key_id = static_cast<uint64>(parser.fetch_long());
-
-    parse(message_id, parser);
-    parse(my_in_seq_no, parser);
-    parse(my_out_seq_no, parser);
-    parse(his_in_seq_no, parser);
-    if (has_encrypted_file) {
-      parse(file, parser);
-    }
-
-    is_checked = true;
-  }
-
-  StringBuilder &print(StringBuilder &sb) const final {
-    return sb << "[Logevent InboundSecretMessage " << tag("id", log_event_id()) << tag("chat_id", chat_id)
-              << tag("date", date) << tag("auth_key_id", format::as_hex(auth_key_id)) << tag("message_id", message_id)
-              << tag("my_in_seq_no", my_in_seq_no) << tag("my_out_seq_no", my_out_seq_no)
-              << tag("his_in_seq_no", his_in_seq_no) << tag("message", to_string(decrypted_message_layer))
-              << tag("is_pending", is_pending) << format::cond(file != nullptr, tag("file", *file)) << "]";
-  }
-};
-
-class OutboundSecretMessage final : public SecretChatLogEventBase<OutboundSecretMessage> {
- public:
-  static constexpr Type type = SecretChatEvent::Type::OutboundSecretMessage;
-
-  int32 chat_id = 0;
-  int64 random_id = 0;
-
-  BufferSlice encrypted_message;
-  EncryptedInputFile file;
-
-  int32 message_id = 0;
-  int32 my_in_seq_no = -1;
-  int32 my_out_seq_no = -1;
-  int32 his_in_seq_no = -1;
-
-  int32 his_layer() const {
-    return -1;
-  }
-
-  bool is_sent = false;
-  // need send push notification to the receiver
-  // should send such messages with messages_sendEncryptedService
-  bool need_notify_user = false;
-  bool is_rewritable = false;
-  // should notify our parent about state of this message (using context and random_id)
-  bool is_external = false;
-  bool is_silent = false;
-
-  tl_object_ptr<secret_api::DecryptedMessageAction> action;
-  uint64 crc = 0;  // DEBUG;
-
-  // Flags:
-  // 2. can_fail = !file.empty() // send of other messages can't fail if chat is ok. It is usless to rewrite them with
-  // empty
-  // 3. can_rewrite_with_empty // false for almost all service messages
-
-  // TODO: combine these two functions into one macros hell. Or a lambda hell.
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-
-    store(chat_id, storer);
-    store(random_id, storer);
-    store(encrypted_message, storer);
-    store(file, storer);
-    store(message_id, storer);
-    store(my_in_seq_no, storer);
-    store(my_out_seq_no, storer);
-    store(his_in_seq_no, storer);
-
-    bool has_action = action != nullptr;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(is_sent);
-    STORE_FLAG(need_notify_user);
-    STORE_FLAG(has_action);
-    STORE_FLAG(is_rewritable);
-    STORE_FLAG(is_external);
-    STORE_FLAG(is_silent);
-    END_STORE_FLAGS();
-
-    if (has_action) {
-      CHECK(action);
-      // TODO
-      storer.store_int(action->get_id());
-      action->store(storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-
-    parse(chat_id, parser);
-    parse(random_id, parser);
-    parse(encrypted_message, parser);
-    parse(file, parser);
-    parse(message_id, parser);
-    parse(my_in_seq_no, parser);
-    parse(my_out_seq_no, parser);
-    parse(his_in_seq_no, parser);
-
-    bool has_action;
-    BEGIN_PARSE_FLAGS();
-    PARSE_FLAG(is_sent);
-    PARSE_FLAG(need_notify_user);
-    PARSE_FLAG(has_action);
-    PARSE_FLAG(is_rewritable);
-    PARSE_FLAG(is_external);
-    PARSE_FLAG(is_silent);
-    END_PARSE_FLAGS();
-
-    if (has_action) {
-      // TODO:
-      action = secret_api::DecryptedMessageAction::fetch(parser);
-    }
-  }
-
-  StringBuilder &print(StringBuilder &sb) const final {
-    return sb << "[Logevent OutboundSecretMessage " << tag("id", log_event_id()) << tag("chat_id", chat_id)
-              << tag("is_sent", is_sent) << tag("need_notify_user", need_notify_user)
-              << tag("is_rewritable", is_rewritable) << tag("is_external", is_external) << tag("message_id", message_id)
-              << tag("random_id", random_id) << tag("my_in_seq_no", my_in_seq_no) << tag("my_out_seq_no", my_out_seq_no)
-              << tag("his_in_seq_no", his_in_seq_no) << tag("file", file) << tag("action", to_string(action)) << "]";
-  }
-};
-
-class CloseSecretChat final : public SecretChatLogEventBase<CloseSecretChat> {
- public:
-  static constexpr Type type = SecretChatEvent::Type::CloseSecretChat;
-  int32 chat_id = 0;
-  bool delete_history = false;
-  bool is_already_discarded = false;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    BEGIN_STORE_FLAGS();
-    STORE_FLAG(delete_history);
-    STORE_FLAG(is_already_discarded);
-    END_STORE_FLAGS();
-    store(chat_id, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    if (parser.version() >= 3) {
-      BEGIN_PARSE_FLAGS();
-      PARSE_FLAG(delete_history);
-      PARSE_FLAG(is_already_discarded);
-      END_PARSE_FLAGS();
-    }
-    parse(chat_id, parser);
-  }
-
-  StringBuilder &print(StringBuilder &sb) const final {
-    return sb << "[Logevent CloseSecretChat " << tag("id", log_event_id()) << tag("chat_id", chat_id)
-              << tag("delete_history", delete_history) << tag("is_already_discarded", is_already_discarded) << "]";
-  }
-};
-
-class CreateSecretChat final : public SecretChatLogEventBase<CreateSecretChat> {
- public:
-  static constexpr Type type = SecretChatEvent::Type::CreateSecretChat;
-  int32 random_id = 0;
-  UserId user_id;
-  int64 user_access_hash = 0;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    store(random_id, storer);
-    store(user_id, storer);
-    store(user_access_hash, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    parse(random_id, parser);
-    user_id = UserId(parser.version() >= 4 ? parser.fetch_long() : static_cast<int64>(parser.fetch_int()));
-    parse(user_access_hash, parser);
-  }
-
-  StringBuilder &print(StringBuilder &sb) const final {
-    return sb << "[Logevent CreateSecretChat " << tag("id", log_event_id()) << tag("chat_id", random_id) << user_id
-              << "]";
-  }
-};
-
-template <class F>
-void SecretChatEvent::downcast_call(Type type, F &&f) {
-  switch (type) {
-    case Type::InboundSecretMessage:
-      f(static_cast<InboundSecretMessage *>(nullptr));
-      break;
-    case Type::OutboundSecretMessage:
-      f(static_cast<OutboundSecretMessage *>(nullptr));
-      break;
-    case Type::CloseSecretChat:
-      f(static_cast<CloseSecretChat *>(nullptr));
-      break;
-    case Type::CreateSecretChat:
-      f(static_cast<CreateSecretChat *>(nullptr));
-      break;
-    default:
-      break;
-  }
-}
-}  // namespace log_event
-
-inline auto create_storer(log_event::SecretChatEvent &event) {
-  return log_event::detail::StorerImpl<log_event::SecretChatEvent>(event);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/misc.cpp b/third-party/td/td/td/telegram/misc.cpp
deleted file mode 100644
index a77d0418f7..0000000000
--- a/third-party/td/td/td/telegram/misc.cpp
+++ /dev/null
@@ -1,406 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/misc.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/Hints.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/utf8.h"
-
-#include <cstring>
-#include <limits>
-
-namespace td {
-
-string clean_name(string str, size_t max_length) {
-  str = strip_empty_characters(str, max_length);
-  size_t new_len = 0;
-  bool is_previous_space = false;
-  for (size_t i = 0; i < str.size(); i++) {
-    if (str[i] == ' ' || str[i] == '\n') {
-      if (!is_previous_space) {
-        str[new_len++] = ' ';
-        is_previous_space = true;
-      }
-      continue;
-    }
-    if (static_cast<unsigned char>(str[i]) == 0xC2 && static_cast<unsigned char>(str[i + 1]) == 0xA0) {  // &nbsp;
-      if (!is_previous_space) {
-        str[new_len++] = ' ';
-        is_previous_space = true;
-      }
-      i++;
-      continue;
-    }
-
-    str[new_len++] = str[i];
-    is_previous_space = false;
-  }
-  str.resize(new_len);
-  return trim(str);
-}
-
-string clean_username(string str) {
-  td::remove(str, '.');
-  to_lower_inplace(str);
-  return trim(str);
-}
-
-void clean_phone_number(string &phone_number) {
-  td::remove_if(phone_number, [](char c) { return !is_digit(c); });
-}
-
-void replace_offending_characters(string &str) {
-  // "(\xe2\x80\x8f|\xe2\x80\x8e){N}(\xe2\x80\x8f|\xe2\x80\x8e)" -> "(\xe2\x80\x8c){N}$2"
-  auto s = MutableSlice(str).ubegin();
-  for (size_t pos = 0; pos < str.size(); pos++) {
-    if (s[pos] == 0xe2 && s[pos + 1] == 0x80 && (s[pos + 2] == 0x8e || s[pos + 2] == 0x8f)) {
-      while (s[pos + 3] == 0xe2 && s[pos + 4] == 0x80 && (s[pos + 5] == 0x8e || s[pos + 5] == 0x8f)) {
-        s[pos + 2] = static_cast<unsigned char>(0x8c);
-        pos += 3;
-      }
-      pos += 2;
-    }
-  }
-}
-
-bool clean_input_string(string &str) {
-  constexpr size_t LENGTH_LIMIT = 35000;  // server side limit
-  if (!check_utf8(str)) {
-    return false;
-  }
-
-  size_t str_size = str.size();
-  size_t new_size = 0;
-  for (size_t pos = 0; pos < str_size; pos++) {
-    auto c = static_cast<unsigned char>(str[pos]);
-    switch (c) {
-      // remove control characters
-      case 0:
-      case 1:
-      case 2:
-      case 3:
-      case 4:
-      case 5:
-      case 6:
-      case 7:
-      case 8:
-      case 9:
-      // allow '\n'
-      case 11:
-      case 12:
-      // ignore '\r'
-      case 14:
-      case 15:
-      case 16:
-      case 17:
-      case 18:
-      case 19:
-      case 20:
-      case 21:
-      case 22:
-      case 23:
-      case 24:
-      case 25:
-      case 26:
-      case 27:
-      case 28:
-      case 29:
-      case 30:
-      case 31:
-      case 32:
-        str[new_size++] = ' ';
-        break;
-      case '\r':
-        // skip
-        break;
-      default:
-        // remove \xe2\x80[\xa8-\xae]
-        if (c == 0xe2 && pos + 2 < str_size) {
-          auto next = static_cast<unsigned char>(str[pos + 1]);
-          if (next == 0x80) {
-            next = static_cast<unsigned char>(str[pos + 2]);
-            if (0xa8 <= next && next <= 0xae) {
-              pos += 2;
-              break;
-            }
-          }
-        }
-        // remove vertical lines \xcc[\xb3\xbf\x8a]
-        if (c == 0xcc && pos + 1 < str_size) {
-          auto next = static_cast<unsigned char>(str[pos + 1]);
-          if (next == 0xb3 || next == 0xbf || next == 0x8a) {
-            pos++;
-            break;
-          }
-        }
-
-        str[new_size++] = str[pos];
-        break;
-    }
-    if (new_size >= LENGTH_LIMIT - 3 && is_utf8_character_first_code_unit(str[new_size - 1])) {
-      new_size--;
-      break;
-    }
-  }
-
-  str.resize(new_size);
-
-  replace_offending_characters(str);
-
-  return true;
-}
-
-string strip_empty_characters(string str, size_t max_length, bool strip_rtlo) {
-  static const char *space_characters[] = {u8"\u1680", u8"\u180E", u8"\u2000", u8"\u2001", u8"\u2002",
-                                           u8"\u2003", u8"\u2004", u8"\u2005", u8"\u2006", u8"\u2007",
-                                           u8"\u2008", u8"\u2009", u8"\u200A", u8"\u202E", u8"\u202F",
-                                           u8"\u205F", u8"\u2800", u8"\u3000", u8"\uFFFC"};
-  static bool can_be_first[std::numeric_limits<unsigned char>::max() + 1];
-  static bool can_be_first_inited = [&] {
-    for (auto space_ch : space_characters) {
-      CHECK(std::strlen(space_ch) == 3);
-      can_be_first[static_cast<unsigned char>(space_ch[0])] = true;
-    }
-    can_be_first[0xF3] = true;
-    return true;
-  }();
-  CHECK(can_be_first_inited);
-
-  // replace all occurrences of space characters with a space
-  size_t i = 0;
-  while (i < str.size() && !can_be_first[static_cast<unsigned char>(str[i])]) {
-    i++;
-  }
-  size_t new_len = i;
-  while (i < str.size()) {
-    if (can_be_first[static_cast<unsigned char>(str[i])] && i + 3 <= str.size()) {
-      if (static_cast<unsigned char>(str[i]) == 0xF3) {
-        if (static_cast<unsigned char>(str[i + 1]) == 0xA0 && (static_cast<unsigned char>(str[i + 2]) & 0xFE) == 0x80 &&
-            i + 4 <= str.size()) {
-          str[new_len++] = ' ';
-          i += 4;
-          continue;
-        }
-      } else {
-        bool found = false;
-        for (auto space_ch : space_characters) {
-          if (space_ch[0] == str[i] && space_ch[1] == str[i + 1] && space_ch[2] == str[i + 2]) {
-            if (static_cast<unsigned char>(str[i + 2]) != 0xAE || static_cast<unsigned char>(str[i + 1]) != 0x80 ||
-                static_cast<unsigned char>(str[i]) != 0xE2 || strip_rtlo) {
-              found = true;
-            }
-            break;
-          }
-        }
-        if (found) {
-          str[new_len++] = ' ';
-          i += 3;
-          continue;
-        }
-      }
-    }
-    str[new_len++] = str[i++];
-  }
-  Slice trimmed = trim(utf8_truncate(trim(Slice(str.c_str(), new_len)), max_length));
-
-  // check if there is some non-empty character, empty characters:
-  // "\xE2\x80\x8B", ZERO WIDTH SPACE
-  // "\xE2\x80\x8C", ZERO WIDTH NON-JOINER
-  // "\xE2\x80\x8D", ZERO WIDTH JOINER
-  // "\xE2\x80\x8E", LEFT-TO-RIGHT MARK
-  // "\xE2\x80\x8F", RIGHT-TO-LEFT MARK
-  // "\xE2\x80\xAE", RIGHT-TO-LEFT OVERRIDE
-  // "\xEF\xBB\xBF", ZERO WIDTH NO-BREAK SPACE aka BYTE ORDER MARK
-  // "\xC2\xA0", NO-BREAK SPACE
-  for (i = 0;;) {
-    if (i == trimmed.size()) {
-      // if all characters are empty, return an empty string
-      return string();
-    }
-
-    if (trimmed[i] == ' ' || trimmed[i] == '\n') {
-      i++;
-      continue;
-    }
-    if (static_cast<unsigned char>(trimmed[i]) == 0xE2 && static_cast<unsigned char>(trimmed[i + 1]) == 0x80) {
-      auto next = static_cast<unsigned char>(trimmed[i + 2]);
-      if ((0x8B <= next && next <= 0x8F) || next == 0xAE) {
-        i += 3;
-        continue;
-      }
-    }
-    if (static_cast<unsigned char>(trimmed[i]) == 0xEF && static_cast<unsigned char>(trimmed[i + 1]) == 0xBB &&
-        static_cast<unsigned char>(trimmed[i + 2]) == 0xBF) {
-      i += 3;
-      continue;
-    }
-    if (static_cast<unsigned char>(trimmed[i]) == 0xC2 && static_cast<unsigned char>(trimmed[i + 1]) == 0xA0) {
-      i += 2;
-      continue;
-    }
-    break;
-  }
-  return trimmed.str();
-}
-
-bool is_empty_string(const string &str) {
-  return strip_empty_characters(str, str.size()).empty();
-}
-
-bool is_valid_username(Slice username) {
-  if (username.empty() || username.size() > 32) {
-    return false;
-  }
-  if (!is_alpha(username[0])) {
-    return false;
-  }
-  for (auto c : username) {
-    if (!is_alpha(c) && !is_digit(c) && c != '_') {
-      return false;
-    }
-  }
-  if (username.back() == '_') {
-    return false;
-  }
-  for (size_t i = 1; i < username.size(); i++) {
-    if (username[i - 1] == '_' && username[i] == '_') {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-bool is_allowed_username(Slice username) {
-  if (!is_valid_username(username)) {
-    return false;
-  }
-  if (username.size() < 5) {
-    return false;
-  }
-  auto username_lowered = to_lower(username);
-  if (username_lowered.find("admin") == 0 || username_lowered.find("telegram") == 0 ||
-      username_lowered.find("support") == 0 || username_lowered.find("security") == 0 ||
-      username_lowered.find("settings") == 0 || username_lowered.find("contacts") == 0 ||
-      username_lowered.find("service") == 0 || username_lowered.find("telegraph") == 0) {
-    return false;
-  }
-  return true;
-}
-
-uint64 get_md5_string_hash(const string &str) {
-  unsigned char hash[16];
-  md5(str, {hash, sizeof(hash)});
-  uint64 result = 0;
-  for (int i = 0; i <= 7; i++) {
-    result += static_cast<uint64>(hash[i]) << (56 - 8 * i);
-  }
-  return result;
-}
-
-int64 get_vector_hash(const vector<uint64> &numbers) {
-  uint64 acc = 0;
-  for (auto number : numbers) {
-    acc ^= acc >> 21;
-    acc ^= acc << 35;
-    acc ^= acc >> 4;
-    acc += number;
-  }
-  return static_cast<int64>(acc);
-}
-
-string get_emoji_fingerprint(uint64 num) {
-  static const vector<Slice> emojis{
-      u8"\U0001f609", u8"\U0001f60d", u8"\U0001f61b", u8"\U0001f62d", u8"\U0001f631", u8"\U0001f621", u8"\U0001f60e",
-      u8"\U0001f634", u8"\U0001f635", u8"\U0001f608", u8"\U0001f62c", u8"\U0001f607", u8"\U0001f60f", u8"\U0001f46e",
-      u8"\U0001f477", u8"\U0001f482", u8"\U0001f476", u8"\U0001f468", u8"\U0001f469", u8"\U0001f474", u8"\U0001f475",
-      u8"\U0001f63b", u8"\U0001f63d", u8"\U0001f640", u8"\U0001f47a", u8"\U0001f648", u8"\U0001f649", u8"\U0001f64a",
-      u8"\U0001f480", u8"\U0001f47d", u8"\U0001f4a9", u8"\U0001f525", u8"\U0001f4a5", u8"\U0001f4a4", u8"\U0001f442",
-      u8"\U0001f440", u8"\U0001f443", u8"\U0001f445", u8"\U0001f444", u8"\U0001f44d", u8"\U0001f44e", u8"\U0001f44c",
-      u8"\U0001f44a", u8"\u270c", u8"\u270b", u8"\U0001f450", u8"\U0001f446", u8"\U0001f447", u8"\U0001f449",
-      u8"\U0001f448", u8"\U0001f64f", u8"\U0001f44f", u8"\U0001f4aa", u8"\U0001f6b6", u8"\U0001f3c3", u8"\U0001f483",
-      u8"\U0001f46b", u8"\U0001f46a", u8"\U0001f46c", u8"\U0001f46d", u8"\U0001f485", u8"\U0001f3a9", u8"\U0001f451",
-      u8"\U0001f452", u8"\U0001f45f", u8"\U0001f45e", u8"\U0001f460", u8"\U0001f455", u8"\U0001f457", u8"\U0001f456",
-      u8"\U0001f459", u8"\U0001f45c", u8"\U0001f453", u8"\U0001f380", u8"\U0001f484", u8"\U0001f49b", u8"\U0001f499",
-      u8"\U0001f49c", u8"\U0001f49a", u8"\U0001f48d", u8"\U0001f48e", u8"\U0001f436", u8"\U0001f43a", u8"\U0001f431",
-      u8"\U0001f42d", u8"\U0001f439", u8"\U0001f430", u8"\U0001f438", u8"\U0001f42f", u8"\U0001f428", u8"\U0001f43b",
-      u8"\U0001f437", u8"\U0001f42e", u8"\U0001f417", u8"\U0001f434", u8"\U0001f411", u8"\U0001f418", u8"\U0001f43c",
-      u8"\U0001f427", u8"\U0001f425", u8"\U0001f414", u8"\U0001f40d", u8"\U0001f422", u8"\U0001f41b", u8"\U0001f41d",
-      u8"\U0001f41c", u8"\U0001f41e", u8"\U0001f40c", u8"\U0001f419", u8"\U0001f41a", u8"\U0001f41f", u8"\U0001f42c",
-      u8"\U0001f40b", u8"\U0001f410", u8"\U0001f40a", u8"\U0001f42b", u8"\U0001f340", u8"\U0001f339", u8"\U0001f33b",
-      u8"\U0001f341", u8"\U0001f33e", u8"\U0001f344", u8"\U0001f335", u8"\U0001f334", u8"\U0001f333", u8"\U0001f31e",
-      u8"\U0001f31a", u8"\U0001f319", u8"\U0001f30e", u8"\U0001f30b", u8"\u26a1", u8"\u2614", u8"\u2744", u8"\u26c4",
-      u8"\U0001f300", u8"\U0001f308", u8"\U0001f30a", u8"\U0001f393", u8"\U0001f386", u8"\U0001f383", u8"\U0001f47b",
-      u8"\U0001f385", u8"\U0001f384", u8"\U0001f381", u8"\U0001f388", u8"\U0001f52e", u8"\U0001f3a5", u8"\U0001f4f7",
-      u8"\U0001f4bf", u8"\U0001f4bb", u8"\u260e", u8"\U0001f4e1", u8"\U0001f4fa", u8"\U0001f4fb", u8"\U0001f509",
-      u8"\U0001f514", u8"\u23f3", u8"\u23f0", u8"\u231a", u8"\U0001f512", u8"\U0001f511", u8"\U0001f50e",
-      u8"\U0001f4a1", u8"\U0001f526", u8"\U0001f50c", u8"\U0001f50b", u8"\U0001f6bf", u8"\U0001f6bd", u8"\U0001f527",
-      u8"\U0001f528", u8"\U0001f6aa", u8"\U0001f6ac", u8"\U0001f4a3", u8"\U0001f52b", u8"\U0001f52a", u8"\U0001f48a",
-      u8"\U0001f489", u8"\U0001f4b0", u8"\U0001f4b5", u8"\U0001f4b3", u8"\u2709", u8"\U0001f4eb", u8"\U0001f4e6",
-      u8"\U0001f4c5", u8"\U0001f4c1", u8"\u2702", u8"\U0001f4cc", u8"\U0001f4ce", u8"\u2712", u8"\u270f",
-      u8"\U0001f4d0", u8"\U0001f4da", u8"\U0001f52c", u8"\U0001f52d", u8"\U0001f3a8", u8"\U0001f3ac", u8"\U0001f3a4",
-      u8"\U0001f3a7", u8"\U0001f3b5", u8"\U0001f3b9", u8"\U0001f3bb", u8"\U0001f3ba", u8"\U0001f3b8", u8"\U0001f47e",
-      u8"\U0001f3ae", u8"\U0001f0cf", u8"\U0001f3b2", u8"\U0001f3af", u8"\U0001f3c8", u8"\U0001f3c0", u8"\u26bd",
-      u8"\u26be", u8"\U0001f3be", u8"\U0001f3b1", u8"\U0001f3c9", u8"\U0001f3b3", u8"\U0001f3c1", u8"\U0001f3c7",
-      u8"\U0001f3c6", u8"\U0001f3ca", u8"\U0001f3c4", u8"\u2615", u8"\U0001f37c", u8"\U0001f37a", u8"\U0001f377",
-      u8"\U0001f374", u8"\U0001f355", u8"\U0001f354", u8"\U0001f35f", u8"\U0001f357", u8"\U0001f371", u8"\U0001f35a",
-      u8"\U0001f35c", u8"\U0001f361", u8"\U0001f373", u8"\U0001f35e", u8"\U0001f369", u8"\U0001f366", u8"\U0001f382",
-      u8"\U0001f370", u8"\U0001f36a", u8"\U0001f36b", u8"\U0001f36d", u8"\U0001f36f", u8"\U0001f34e", u8"\U0001f34f",
-      u8"\U0001f34a", u8"\U0001f34b", u8"\U0001f352", u8"\U0001f347", u8"\U0001f349", u8"\U0001f353", u8"\U0001f351",
-      u8"\U0001f34c", u8"\U0001f350", u8"\U0001f34d", u8"\U0001f346", u8"\U0001f345", u8"\U0001f33d", u8"\U0001f3e1",
-      u8"\U0001f3e5", u8"\U0001f3e6", u8"\u26ea", u8"\U0001f3f0", u8"\u26fa", u8"\U0001f3ed", u8"\U0001f5fb",
-      u8"\U0001f5fd", u8"\U0001f3a0", u8"\U0001f3a1", u8"\u26f2", u8"\U0001f3a2", u8"\U0001f6a2", u8"\U0001f6a4",
-      u8"\u2693", u8"\U0001f680", u8"\u2708", u8"\U0001f681", u8"\U0001f682", u8"\U0001f68b", u8"\U0001f68e",
-      u8"\U0001f68c", u8"\U0001f699", u8"\U0001f697", u8"\U0001f695", u8"\U0001f69b", u8"\U0001f6a8", u8"\U0001f694",
-      u8"\U0001f692", u8"\U0001f691", u8"\U0001f6b2", u8"\U0001f6a0", u8"\U0001f69c", u8"\U0001f6a6", u8"\u26a0",
-      u8"\U0001f6a7", u8"\u26fd", u8"\U0001f3b0", u8"\U0001f5ff", u8"\U0001f3aa", u8"\U0001f3ad",
-      u8"\U0001f1ef\U0001f1f5", u8"\U0001f1f0\U0001f1f7", u8"\U0001f1e9\U0001f1ea", u8"\U0001f1e8\U0001f1f3",
-      u8"\U0001f1fa\U0001f1f8", u8"\U0001f1eb\U0001f1f7", u8"\U0001f1ea\U0001f1f8", u8"\U0001f1ee\U0001f1f9",
-      u8"\U0001f1f7\U0001f1fa", u8"\U0001f1ec\U0001f1e7", u8"\u0031\u20e3", u8"\u0032\u20e3", u8"\u0033\u20e3",
-      u8"\u0034\u20e3", u8"\u0035\u20e3", u8"\u0036\u20e3", u8"\u0037\u20e3", u8"\u0038\u20e3", u8"\u0039\u20e3",
-      u8"\u0030\u20e3", u8"\U0001f51f", u8"\u2757", u8"\u2753", u8"\u2665", u8"\u2666", u8"\U0001f4af", u8"\U0001f517",
-      u8"\U0001f531", u8"\U0001f534", u8"\U0001f535", u8"\U0001f536",
-      // comment for clang-format
-      u8"\U0001f537"};
-
-  return emojis[static_cast<size_t>((num & 0x7FFFFFFFFFFFFFFF) % emojis.size())].str();
-}
-
-bool check_currency_amount(int64 amount) {
-  constexpr int64 MAX_AMOUNT = 9999'9999'9999;
-  return -MAX_AMOUNT <= amount && amount <= MAX_AMOUNT;
-}
-
-Status validate_bot_language_code(const string &language_code) {
-  if (language_code.empty()) {
-    return Status::OK();
-  }
-  if (language_code.size() == 2 && 'a' <= language_code[0] && language_code[0] <= 'z' && 'a' <= language_code[1] &&
-      language_code[1] <= 'z') {
-    return Status::OK();
-  }
-  return Status::Error(400, "Invalid language code specified");
-}
-
-vector<int32> search_strings_by_prefix(const vector<string> &strings, const string &query, int32 limit,
-                                       bool return_all_for_empty_query, int32 &total_count) {
-  Hints hints;
-  for (size_t i = 0; i < strings.size(); i++) {
-    const auto &str = strings[i];
-    hints.add(i, str.empty() ? Slice(" ") : Slice(str));
-    hints.set_rating(i, i);
-  }
-  auto result = hints.search(query, limit, return_all_for_empty_query);
-  total_count = narrow_cast<int32>(result.first);
-  return transform(result.second, [](int64 key) { return narrow_cast<int32>(key); });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/misc.h b/third-party/td/td/td/telegram/misc.h
deleted file mode 100644
index bae968ac3e..0000000000
--- a/third-party/td/td/td/telegram/misc.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-// cleans user name/dialog title
-string clean_name(string str, size_t max_length) TD_WARN_UNUSED_RESULT;
-
-// prepares username/stickername for search
-string clean_username(string str) TD_WARN_UNUSED_RESULT;
-
-// prepares phone number for search
-void clean_phone_number(string &phone_number);
-
-// replaces some offending characters without changing string length
-void replace_offending_characters(string &str);
-
-// removes control characters from the string, will fail if input string is not in UTF-8
-bool clean_input_string(string &str) TD_WARN_UNUSED_RESULT;
-
-// strips empty characters and ensures that string length is no more than max_length
-string strip_empty_characters(string str, size_t max_length, bool strip_rtlo = false) TD_WARN_UNUSED_RESULT;
-
-// checks if string is empty after strip_empty_characters
-bool is_empty_string(const string &str) TD_WARN_UNUSED_RESULT;
-
-// checks whether a string could be a valid username
-bool is_valid_username(Slice username);
-
-// checks whether a string can be set as a username
-bool is_allowed_username(Slice username);
-
-// calculates truncated MD5 hash of a string
-uint64 get_md5_string_hash(const string &str) TD_WARN_UNUSED_RESULT;
-
-// calculates hash of list of uint64
-int64 get_vector_hash(const vector<uint64> &numbers) TD_WARN_UNUSED_RESULT;
-
-// returns emoji corresponding to the specified number
-string get_emoji_fingerprint(uint64 num);
-
-// checks whether currency amount is valid
-bool check_currency_amount(int64 amount);
-
-// checks whether language code is valid for bot settings
-Status validate_bot_language_code(const string &language_code);
-
-// returns 0-based indexes of strings matching the query by prefixes
-vector<int32> search_strings_by_prefix(const vector<string> &strings, const string &query, int32 limit,
-                                       bool return_all_for_empty_query, int32 &total_count);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/AuthDataShared.cpp b/third-party/td/td/td/telegram/net/AuthDataShared.cpp
deleted file mode 100644
index 3fff0f3bcb..0000000000
--- a/third-party/td/td/td/telegram/net/AuthDataShared.cpp
+++ /dev/null
@@ -1,133 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/AuthDataShared.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/AuthKeyState.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/RwMutex.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class AuthDataSharedImpl final : public AuthDataShared {
- public:
-  AuthDataSharedImpl(DcId dc_id, std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key,
-                     std::shared_ptr<Guard> guard)
-      : dc_id_(dc_id), public_rsa_key_(std::move(public_rsa_key)), guard_(std::move(guard)) {
-    log_auth_key(get_auth_key());
-  }
-
-  DcId dc_id() const final {
-    return dc_id_;
-  }
-
-  const std::shared_ptr<mtproto::PublicRsaKeyInterface> &public_rsa_key() final {
-    return public_rsa_key_;
-  }
-
-  static mtproto::AuthKey get_auth_key_for_dc(DcId dc_id) {
-    string dc_key = G()->td_db()->get_binlog_pmc()->get(get_auth_key_binlog_key(dc_id));
-
-    mtproto::AuthKey res;
-    if (!dc_key.empty()) {
-      unserialize(res, dc_key).ensure();
-    }
-    return res;
-  }
-
-  mtproto::AuthKey get_auth_key() final {
-    return get_auth_key_for_dc(dc_id_);
-  }
-
-  void set_auth_key(const mtproto::AuthKey &auth_key) final {
-    G()->td_db()->get_binlog_pmc()->set(get_auth_key_binlog_key(dc_id_), serialize(auth_key));
-    log_auth_key(auth_key);
-
-    notify();
-  }
-
-  // TODO: extract it from G()
-  void update_server_time_difference(double diff, bool force) final {
-    G()->update_server_time_difference(diff, force);
-  }
-
-  double get_server_time_difference() final {
-    return G()->get_server_time_difference();
-  }
-
-  void add_auth_key_listener(unique_ptr<Listener> listener) final {
-    CHECK(listener != nullptr);
-    if (listener->notify()) {
-      auto lock = rw_mutex_.lock_write();
-      auth_key_listeners_.push_back(std::move(listener));
-    }
-  }
-
-  void set_future_salts(const std::vector<mtproto::ServerSalt> &future_salts) final {
-    G()->td_db()->get_binlog_pmc()->set(get_future_salts_binlog_key(dc_id_), serialize(future_salts));
-  }
-
-  std::vector<mtproto::ServerSalt> get_future_salts() final {
-    string future_salts = G()->td_db()->get_binlog_pmc()->get(get_future_salts_binlog_key(dc_id_));
-    std::vector<mtproto::ServerSalt> res;
-    if (!future_salts.empty()) {
-      unserialize(res, future_salts).ensure();
-    }
-    return res;
-  }
-
- private:
-  DcId dc_id_;
-  std::vector<unique_ptr<Listener>> auth_key_listeners_;
-  std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key_;
-  std::shared_ptr<Guard> guard_;
-  RwMutex rw_mutex_;
-
-  static string get_auth_key_binlog_key(DcId dc_id) {
-    return PSTRING() << "auth" << dc_id.get_raw_id();
-  }
-
-  static string get_future_salts_binlog_key(DcId dc_id) {
-    return PSTRING() << "salt" << dc_id.get_raw_id();
-  }
-
-  void notify() {
-    auto lock = rw_mutex_.lock_write();
-    td::remove_if(auth_key_listeners_, [&](auto &listener) {
-      CHECK(listener != nullptr);
-      return !listener->notify();
-    });
-  }
-
-  void log_auth_key(const mtproto::AuthKey &auth_key) {
-    auto salts = get_future_salts();
-    int64 last_used = 0;
-    if (!salts.empty()) {
-      last_used = static_cast<int64>(salts[0].valid_until);
-    }
-    LOG(WARNING) << dc_id_ << " " << tag("auth_key_id", auth_key.id()) << tag("state", get_auth_key_state(auth_key))
-                 << tag("created_at", static_cast<int64>(auth_key.created_at())) << tag("last_used", last_used);
-  }
-};
-
-mtproto::AuthKey AuthDataShared::get_auth_key_for_dc(DcId dc_id) {
-  return AuthDataSharedImpl::get_auth_key_for_dc(dc_id);
-}
-
-std::shared_ptr<AuthDataShared> AuthDataShared::create(DcId dc_id,
-                                                       std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key,
-                                                       std::shared_ptr<Guard> guard) {
-  return std::make_shared<AuthDataSharedImpl>(dc_id, std::move(public_rsa_key), std::move(guard));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/AuthDataShared.h b/third-party/td/td/td/telegram/net/AuthDataShared.h
deleted file mode 100644
index f9d523312c..0000000000
--- a/third-party/td/td/td/telegram/net/AuthDataShared.h
+++ /dev/null
@@ -1,53 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/DcId.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/RSA.h"
-
-#include "td/utils/common.h"
-#include "td/utils/ScopeGuard.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class AuthDataShared {
- public:
-  virtual ~AuthDataShared() = default;
-  class Listener {
-   public:
-    Listener() = default;
-    Listener(const Listener &) = delete;
-    Listener &operator=(const Listener &) = delete;
-    virtual ~Listener() = default;
-    virtual bool notify() = 0;
-  };
-
-  virtual DcId dc_id() const = 0;
-  virtual const std::shared_ptr<mtproto::PublicRsaKeyInterface> &public_rsa_key() = 0;
-  virtual mtproto::AuthKey get_auth_key() = 0;
-  virtual void set_auth_key(const mtproto::AuthKey &auth_key) = 0;
-  virtual void update_server_time_difference(double diff, bool force) = 0;
-  virtual double get_server_time_difference() = 0;
-  virtual void add_auth_key_listener(unique_ptr<Listener> listener) = 0;
-
-  virtual void set_future_salts(const std::vector<mtproto::ServerSalt> &future_salts) = 0;
-  virtual std::vector<mtproto::ServerSalt> get_future_salts() = 0;
-
-  static mtproto::AuthKey get_auth_key_for_dc(DcId dc_id);
-
-  static std::shared_ptr<AuthDataShared> create(DcId dc_id,
-                                                std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key,
-                                                std::shared_ptr<Guard> guard);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/AuthKeyState.h b/third-party/td/td/td/telegram/net/AuthKeyState.h
deleted file mode 100644
index 6e34170fde..0000000000
--- a/third-party/td/td/td/telegram/net/AuthKeyState.h
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/AuthKey.h"
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-enum class AuthKeyState : int32 { Empty, NoAuth, OK };
-
-inline AuthKeyState get_auth_key_state(const mtproto::AuthKey &auth_key) {
-  if (auth_key.empty()) {
-    return AuthKeyState::Empty;
-  } else if (auth_key.auth_flag()) {
-    return AuthKeyState::OK;
-  } else {
-    return AuthKeyState::NoAuth;
-  }
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, AuthKeyState state) {
-  switch (state) {
-    case AuthKeyState::Empty:
-      return sb << "Empty";
-    case AuthKeyState::NoAuth:
-      return sb << "NoAuth";
-    case AuthKeyState::OK:
-      return sb << "OK";
-    default:
-      return sb << "Unknown AuthKeyState";
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/ConnectionCreator.cpp b/third-party/td/td/td/telegram/net/ConnectionCreator.cpp
deleted file mode 100644
index e56fe6a733..0000000000
--- a/third-party/td/td/td/telegram/net/ConnectionCreator.cpp
+++ /dev/null
@@ -1,1478 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/ConnectionCreator.h"
-
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/LinkManager.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/net/MtprotoHeader.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/net/NetType.h"
-#include "td/telegram/net/PublicRsaKeySharedMain.h"
-#include "td/telegram/PromoDataManager.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/TdDb.h"
-
-#include "td/mtproto/DhCallback.h"
-#include "td/mtproto/HandshakeActor.h"
-#include "td/mtproto/Ping.h"
-#include "td/mtproto/ProxySecret.h"
-#include "td/mtproto/RSA.h"
-#include "td/mtproto/TlsInit.h"
-
-#include "td/net/GetHostByNameActor.h"
-#include "td/net/HttpProxy.h"
-#include "td/net/Socks5.h"
-#include "td/net/TransparentProxy.h"
-
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-
-#include <utility>
-
-namespace td {
-
-int VERBOSITY_NAME(connections) = VERBOSITY_NAME(INFO);
-
-namespace detail {
-
-class StatsCallback final : public mtproto::RawConnection::StatsCallback {
- public:
-  StatsCallback(std::shared_ptr<NetStatsCallback> net_stats_callback, ActorId<ConnectionCreator> connection_creator,
-                uint32 hash, DcOptionsSet::Stat *option_stat)
-      : net_stats_callback_(std::move(net_stats_callback))
-      , connection_creator_(std::move(connection_creator))
-      , hash_(hash)
-      , option_stat_(option_stat) {
-  }
-
-  void on_read(uint64 bytes) final {
-    if (net_stats_callback_ != nullptr) {
-      net_stats_callback_->on_read(bytes);
-    }
-  }
-  void on_write(uint64 bytes) final {
-    if (net_stats_callback_ != nullptr) {
-      net_stats_callback_->on_write(bytes);
-    }
-  }
-
-  void on_pong() final {
-    if (option_stat_) {
-      send_lambda(connection_creator_, [stat = option_stat_] { stat->on_ok(); });
-    }
-    send_closure(connection_creator_, &ConnectionCreator::on_pong, hash_);
-  }
-
-  void on_error() final {
-    if (option_stat_) {
-      send_lambda(connection_creator_, [stat = option_stat_] { stat->on_error(); });
-    }
-  }
-
-  void on_mtproto_error() final {
-    send_closure(connection_creator_, &ConnectionCreator::on_mtproto_error, hash_);
-  }
-
- private:
-  std::shared_ptr<NetStatsCallback> net_stats_callback_;
-  ActorId<ConnectionCreator> connection_creator_;
-  uint32 hash_;
-  DcOptionsSet::Stat *option_stat_;
-};
-
-}  // namespace detail
-
-ConnectionCreator::ClientInfo::ClientInfo() {
-  sanity_flood_control.add_limit(5, 10);
-
-  flood_control.add_limit(1, 1);
-  flood_control.add_limit(4, 2);
-  flood_control.add_limit(8, 3);
-
-  flood_control_online.add_limit(1, 4);
-  flood_control_online.add_limit(5, 5);
-
-  mtproto_error_flood_control.add_limit(1, 1);
-  mtproto_error_flood_control.add_limit(4, 2);
-  mtproto_error_flood_control.add_limit(8, 3);
-}
-
-uint64 ConnectionCreator::ClientInfo::extract_session_id() {
-  if (!session_ids_.empty()) {
-    auto res = *session_ids_.begin();
-    session_ids_.erase(session_ids_.begin());
-    return res;
-  }
-  uint64 res = 0;
-  while (res == 0) {
-    res = Random::secure_uint64();
-  }
-  return res;
-}
-
-void ConnectionCreator::ClientInfo::add_session_id(uint64 session_id) {
-  if (session_id != 0) {
-    session_ids_.insert(session_id);
-  }
-}
-
-ConnectionCreator::ConnectionCreator(ActorShared<> parent) : parent_(std::move(parent)) {
-}
-
-ConnectionCreator::ConnectionCreator(ConnectionCreator &&) = default;
-
-ConnectionCreator &ConnectionCreator::operator=(ConnectionCreator &&) = default;
-
-ConnectionCreator::~ConnectionCreator() = default;
-
-void ConnectionCreator::set_net_stats_callback(std::shared_ptr<NetStatsCallback> common_callback,
-                                               std::shared_ptr<NetStatsCallback> media_callback) {
-  common_net_stats_callback_ = std::move(common_callback);
-  media_net_stats_callback_ = std::move(media_callback);
-}
-
-void ConnectionCreator::add_proxy(int32 old_proxy_id, string server, int32 port, bool enable,
-                                  td_api::object_ptr<td_api::ProxyType> proxy_type,
-                                  Promise<td_api::object_ptr<td_api::proxy>> promise) {
-  TRY_RESULT_PROMISE(promise, new_proxy, Proxy::create_proxy(std::move(server), port, proxy_type.get()));
-  if (old_proxy_id >= 0) {
-    if (proxies_.count(old_proxy_id) == 0) {
-      return promise.set_error(Status::Error(400, "Proxy not found"));
-    }
-    auto &old_proxy = proxies_[old_proxy_id];
-    if (old_proxy == new_proxy) {
-      if (enable) {
-        enable_proxy_impl(old_proxy_id);
-      }
-      return promise.set_value(get_proxy_object(old_proxy_id));
-    }
-    if (old_proxy_id == active_proxy_id_) {
-      enable = true;
-      disable_proxy_impl();
-    }
-
-    proxies_.erase(old_proxy_id);
-    G()->td_db()->get_binlog_pmc()->erase(get_proxy_used_database_key(old_proxy_id));
-    proxy_last_used_date_.erase(old_proxy_id);
-    proxy_last_used_saved_date_.erase(old_proxy_id);
-  } else {
-#if TD_EMSCRIPTEN || TD_DARWIN_WATCH_OS
-    return promise.set_error(Status::Error(400, "The method is unsupported for the platform"));
-#endif
-  }
-
-  auto proxy_id = [&] {
-    for (auto &proxy : proxies_) {
-      if (proxy.second == new_proxy) {
-        return proxy.first;
-      }
-    }
-
-    int32 proxy_id = old_proxy_id;
-    if (proxy_id < 0) {
-      CHECK(max_proxy_id_ >= 2);
-      proxy_id = max_proxy_id_++;
-      G()->td_db()->get_binlog_pmc()->set("proxy_max_id", to_string(max_proxy_id_));
-    }
-    bool is_inserted = proxies_.emplace(proxy_id, std::move(new_proxy)).second;
-    CHECK(is_inserted);
-    G()->td_db()->get_binlog_pmc()->set(get_proxy_database_key(proxy_id),
-                                        log_event_store(proxies_[proxy_id]).as_slice().str());
-    return proxy_id;
-  }();
-  if (enable) {
-    enable_proxy_impl(proxy_id);
-  }
-  promise.set_value(get_proxy_object(proxy_id));
-}
-
-void ConnectionCreator::enable_proxy(int32 proxy_id, Promise<Unit> promise) {
-  if (proxies_.count(proxy_id) == 0) {
-    return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
-  }
-
-  enable_proxy_impl(proxy_id);
-  promise.set_value(Unit());
-}
-
-void ConnectionCreator::disable_proxy(Promise<Unit> promise) {
-  save_proxy_last_used_date(0);
-  disable_proxy_impl();
-  promise.set_value(Unit());
-}
-
-void ConnectionCreator::remove_proxy(int32 proxy_id, Promise<Unit> promise) {
-  if (proxies_.count(proxy_id) == 0) {
-    return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
-  }
-
-  if (proxy_id == active_proxy_id_) {
-    disable_proxy_impl();
-  }
-
-  proxies_.erase(proxy_id);
-
-  G()->td_db()->get_binlog_pmc()->erase(get_proxy_database_key(proxy_id));
-  G()->td_db()->get_binlog_pmc()->erase(get_proxy_used_database_key(proxy_id));
-  promise.set_value(Unit());
-}
-
-void ConnectionCreator::get_proxies(Promise<td_api::object_ptr<td_api::proxies>> promise) {
-  promise.set_value(td_api::make_object<td_api::proxies>(
-      transform(proxies_, [this](const std::pair<int32, Proxy> &proxy) { return get_proxy_object(proxy.first); })));
-}
-
-void ConnectionCreator::get_proxy_link(int32 proxy_id, Promise<string> promise) {
-  auto it = proxies_.find(proxy_id);
-  if (it == proxies_.end()) {
-    return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
-  }
-
-  promise.set_result(LinkManager::get_proxy_link(it->second, false));
-}
-
-ActorId<GetHostByNameActor> ConnectionCreator::get_dns_resolver() {
-  if (G()->get_option_boolean("expect_blocking", true)) {
-    if (block_get_host_by_name_actor_.empty()) {
-      VLOG(connections) << "Init block bypass DNS resolver";
-      GetHostByNameActor::Options options;
-      options.scheduler_id = G()->get_gc_scheduler_id();
-      options.resolver_types = {GetHostByNameActor::ResolverType::Google, GetHostByNameActor::ResolverType::Native};
-      options.ok_timeout = 60;
-      options.error_timeout = 0;
-      block_get_host_by_name_actor_ = create_actor<GetHostByNameActor>("BlockDnsResolverActor", std::move(options));
-    }
-    return block_get_host_by_name_actor_.get();
-  } else {
-    if (get_host_by_name_actor_.empty()) {
-      VLOG(connections) << "Init DNS resolver";
-      GetHostByNameActor::Options options;
-      options.scheduler_id = G()->get_gc_scheduler_id();
-      options.ok_timeout = 5 * 60 - 1;
-      options.error_timeout = 0;
-      get_host_by_name_actor_ = create_actor<GetHostByNameActor>("DnsResolverActor", std::move(options));
-    }
-    return get_host_by_name_actor_.get();
-  }
-}
-
-void ConnectionCreator::ping_proxy(int32 proxy_id, Promise<double> promise) {
-  CHECK(!close_flag_);
-  if (proxy_id == 0) {
-    auto main_dc_id = G()->net_query_dispatcher().get_main_dc_id();
-    bool prefer_ipv6 = G()->get_option_boolean("prefer_ipv6");
-    auto infos = dc_options_set_.find_all_connections(main_dc_id, false, false, prefer_ipv6, false);
-    if (infos.empty()) {
-      return promise.set_error(Status::Error(400, "Can't find valid DC address"));
-    }
-    const size_t MAX_CONNECTIONS = 10;
-    if (infos.size() > MAX_CONNECTIONS) {
-      infos.resize(MAX_CONNECTIONS);
-    }
-
-    auto token = next_token();
-    auto &request = ping_main_dc_requests_[token];
-    request.promise = std::move(promise);
-    request.left_queries = infos.size();
-    request.result = Status::Error(400, "Failed to ping");
-
-    for (auto &info : infos) {
-      auto r_transport_type = get_transport_type(Proxy(), info);
-      if (r_transport_type.is_error()) {
-        LOG(ERROR) << r_transport_type.error();
-        on_ping_main_dc_result(token, r_transport_type.move_as_error());
-        continue;
-      }
-
-      auto ip_address = info.option->get_ip_address();
-      auto r_socket_fd = SocketFd::open(ip_address);
-      if (r_socket_fd.is_error()) {
-        LOG(DEBUG) << "Failed to open socket: " << r_socket_fd.error();
-        on_ping_main_dc_result(token, r_socket_fd.move_as_error());
-        continue;
-      }
-
-      ping_proxy_buffered_socket_fd(std::move(ip_address), BufferedFd<SocketFd>(r_socket_fd.move_as_ok()),
-                                    r_transport_type.move_as_ok(), PSTRING() << info.option->get_ip_address(),
-                                    PromiseCreator::lambda([actor_id = actor_id(this), token](Result<double> result) {
-                                      send_closure(actor_id, &ConnectionCreator::on_ping_main_dc_result, token,
-                                                   std::move(result));
-                                    }));
-    }
-    return;
-  }
-
-  auto it = proxies_.find(proxy_id);
-  if (it == proxies_.end()) {
-    return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
-  }
-  const Proxy &proxy = it->second;
-  bool prefer_ipv6 = G()->get_option_boolean("prefer_ipv6");
-  send_closure(get_dns_resolver(), &GetHostByNameActor::run, proxy.server().str(), proxy.port(), prefer_ipv6,
-               PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise),
-                                       proxy_id](Result<IPAddress> result) mutable {
-                 if (result.is_error()) {
-                   return promise.set_error(Status::Error(400, result.error().public_message()));
-                 }
-                 send_closure(actor_id, &ConnectionCreator::ping_proxy_resolved, proxy_id, result.move_as_ok(),
-                              std::move(promise));
-               }));
-}
-
-void ConnectionCreator::ping_proxy_resolved(int32 proxy_id, IPAddress ip_address, Promise<double> promise) {
-  auto it = proxies_.find(proxy_id);
-  if (it == proxies_.end()) {
-    return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
-  }
-  const Proxy &proxy = it->second;
-  auto main_dc_id = G()->net_query_dispatcher().get_main_dc_id();
-  FindConnectionExtra extra;
-  auto r_socket_fd = find_connection(proxy, ip_address, main_dc_id, false, extra);
-  if (r_socket_fd.is_error()) {
-    return promise.set_error(Status::Error(400, r_socket_fd.error().public_message()));
-  }
-  auto socket_fd = r_socket_fd.move_as_ok();
-
-  auto connection_promise = PromiseCreator::lambda(
-      [actor_id = actor_id(this), ip_address, promise = std::move(promise), transport_type = extra.transport_type,
-       debug_str = extra.debug_str](Result<ConnectionData> r_connection_data) mutable {
-        if (r_connection_data.is_error()) {
-          return promise.set_error(Status::Error(400, r_connection_data.error().public_message()));
-        }
-        auto connection_data = r_connection_data.move_as_ok();
-        send_closure(actor_id, &ConnectionCreator::ping_proxy_buffered_socket_fd, ip_address,
-                     std::move(connection_data.buffered_socket_fd), std::move(transport_type), std::move(debug_str),
-                     std::move(promise));
-      });
-  CHECK(proxy.use_proxy());
-  auto token = next_token();
-  auto ref = prepare_connection(extra.ip_address, std::move(socket_fd), proxy, extra.mtproto_ip_address,
-                                extra.transport_type, "Ping", extra.debug_str, nullptr, create_reference(token), false,
-                                std::move(connection_promise));
-  if (!ref.empty()) {
-    children_[token] = {false, std::move(ref)};
-  }
-}
-
-void ConnectionCreator::ping_proxy_buffered_socket_fd(IPAddress ip_address, BufferedFd<SocketFd> buffered_socket_fd,
-                                                      mtproto::TransportType transport_type, string debug_str,
-                                                      Promise<double> promise) {
-  auto token = next_token();
-  auto raw_connection =
-      mtproto::RawConnection::create(ip_address, std::move(buffered_socket_fd), std::move(transport_type), nullptr);
-  children_[token] = {
-      false, create_ping_actor(debug_str, std::move(raw_connection), nullptr,
-                               PromiseCreator::lambda([promise = std::move(promise)](
-                                                          Result<unique_ptr<mtproto::RawConnection>> result) mutable {
-                                 if (result.is_error()) {
-                                   return promise.set_error(Status::Error(400, result.error().public_message()));
-                                 }
-                                 auto ping_time = result.ok()->extra().rtt;
-                                 promise.set_value(std::move(ping_time));
-                               }),
-                               create_reference(token))};
-}
-
-void ConnectionCreator::test_proxy(Proxy &&proxy, int32 dc_id, double timeout, Promise<Unit> &&promise) {
-  auto start_time = Time::now();
-
-  IPAddress ip_address;
-  auto status = ip_address.init_host_port(proxy.server(), proxy.port());
-  if (status.is_error()) {
-    return promise.set_error(Status::Error(400, status.public_message()));
-  }
-  auto r_socket_fd = SocketFd::open(ip_address);
-  if (r_socket_fd.is_error()) {
-    return promise.set_error(Status::Error(400, r_socket_fd.error().public_message()));
-  }
-
-  auto dc_options = get_default_dc_options(false);
-  IPAddress mtproto_ip_address;
-  for (auto &dc_option : dc_options.dc_options) {
-    if (dc_option.get_dc_id().get_raw_id() == dc_id) {
-      mtproto_ip_address = dc_option.get_ip_address();
-      break;
-    }
-  }
-  if (!mtproto_ip_address.is_valid()) {
-    return promise.set_error(Status::Error(400, "Invalid datacenter identifier specified"));
-  }
-
-  auto request_id = ++test_proxy_request_id_;
-  auto request = make_unique<TestProxyRequest>();
-  request->proxy_ = std::move(proxy);
-  request->dc_id_ = static_cast<int16>(dc_id);
-  request->promise_ = std::move(promise);
-
-  auto connection_promise =
-      PromiseCreator::lambda([actor_id = actor_id(this), request_id](Result<ConnectionData> r_data) {
-        send_closure(actor_id, &ConnectionCreator::on_test_proxy_connection_data, request_id, std::move(r_data));
-      });
-  request->child_ = prepare_connection(ip_address, r_socket_fd.move_as_ok(), request->proxy_, mtproto_ip_address,
-                                       request->get_transport(), "Test", "TestPingDC2", nullptr, {}, false,
-                                       std::move(connection_promise));
-
-  test_proxy_requests_.emplace(request_id, std::move(request));
-
-  create_actor<SleepActor>("TestProxyTimeoutActor", timeout + start_time - Time::now(),
-                           PromiseCreator::lambda([actor_id = actor_id(this), request_id](Unit) {
-                             send_closure(actor_id, &ConnectionCreator::on_test_proxy_timeout, request_id);
-                           }))
-      .release();
-}
-
-void ConnectionCreator::on_test_proxy_connection_data(uint64 request_id, Result<ConnectionData> r_data) {
-  auto it = test_proxy_requests_.find(request_id);
-  if (it == test_proxy_requests_.end()) {
-    return;
-  }
-  auto *request = it->second.get();
-  if (r_data.is_error()) {
-    auto promise = std::move(request->promise_);
-    test_proxy_requests_.erase(it);
-    return promise.set_error(r_data.move_as_error());
-  }
-
-  class HandshakeContext final : public mtproto::AuthKeyHandshakeContext {
-   public:
-    mtproto::DhCallback *get_dh_callback() final {
-      return nullptr;
-    }
-    mtproto::PublicRsaKeyInterface *get_public_rsa_key_interface() final {
-      return public_rsa_key_.get();
-    }
-
-   private:
-    std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key_ = PublicRsaKeySharedMain::create(false);
-  };
-  auto handshake = make_unique<mtproto::AuthKeyHandshake>(request->dc_id_, 3600);
-  auto data = r_data.move_as_ok();
-  auto raw_connection = mtproto::RawConnection::create(data.ip_address, std::move(data.buffered_socket_fd),
-                                                       request->get_transport(), nullptr);
-  request->child_ = create_actor<mtproto::HandshakeActor>(
-      "HandshakeActor", std::move(handshake), std::move(raw_connection), make_unique<HandshakeContext>(), 10.0,
-      PromiseCreator::lambda(
-          [actor_id = actor_id(this), request_id](Result<unique_ptr<mtproto::RawConnection>> raw_connection) {
-            send_closure(actor_id, &ConnectionCreator::on_test_proxy_handshake_connection, request_id,
-                         std::move(raw_connection));
-          }),
-      PromiseCreator::lambda(
-          [actor_id = actor_id(this), request_id](Result<unique_ptr<mtproto::AuthKeyHandshake>> handshake) {
-            send_closure(actor_id, &ConnectionCreator::on_test_proxy_handshake, request_id, std::move(handshake));
-          }));
-}
-
-void ConnectionCreator::on_test_proxy_handshake_connection(
-    uint64 request_id, Result<unique_ptr<mtproto::RawConnection>> r_raw_connection) {
-  if (r_raw_connection.is_error()) {
-    auto it = test_proxy_requests_.find(request_id);
-    if (it == test_proxy_requests_.end()) {
-      return;
-    }
-    auto promise = std::move(it->second->promise_);
-    test_proxy_requests_.erase(it);
-    return promise.set_error(Status::Error(400, r_raw_connection.move_as_error().public_message()));
-  }
-}
-
-void ConnectionCreator::on_test_proxy_handshake(uint64 request_id,
-                                                Result<unique_ptr<mtproto::AuthKeyHandshake>> r_handshake) {
-  auto it = test_proxy_requests_.find(request_id);
-  if (it == test_proxy_requests_.end()) {
-    return;
-  }
-  auto promise = std::move(it->second->promise_);
-  test_proxy_requests_.erase(it);
-
-  if (r_handshake.is_error()) {
-    return promise.set_error(Status::Error(400, r_handshake.move_as_error().public_message()));
-  }
-  auto handshake = r_handshake.move_as_ok();
-  if (!handshake->is_ready_for_finish()) {
-    return promise.set_error(Status::Error(400, "Handshake is not ready"));
-  }
-  promise.set_value(Unit());
-}
-
-void ConnectionCreator::on_test_proxy_timeout(uint64 request_id) {
-  auto it = test_proxy_requests_.find(request_id);
-  if (it == test_proxy_requests_.end()) {
-    return;
-  }
-  auto promise = std::move(it->second->promise_);
-  test_proxy_requests_.erase(it);
-
-  promise.set_error(Status::Error(400, "Timeout expired"));
-}
-
-void ConnectionCreator::set_active_proxy_id(int32 proxy_id, bool from_binlog) {
-  active_proxy_id_ = proxy_id;
-  if (proxy_id == 0) {
-    G()->set_option_empty("enabled_proxy_id");
-  } else {
-    G()->set_option_integer("enabled_proxy_id", proxy_id);
-  }
-  if (!from_binlog) {
-    if (proxy_id == 0) {
-      G()->td_db()->get_binlog_pmc()->erase("proxy_active_id");
-      send_closure(G()->config_manager(), &ConfigManager::request_config, false);
-    } else {
-      G()->td_db()->get_binlog_pmc()->set("proxy_active_id", to_string(proxy_id));
-    }
-  }
-}
-
-void ConnectionCreator::enable_proxy_impl(int32 proxy_id) {
-  CHECK(proxies_.count(proxy_id) == 1);
-  if (proxy_id == active_proxy_id_) {
-    return;
-  }
-
-  if ((active_proxy_id_ != 0 && proxies_[active_proxy_id_].type() == Proxy::Type::Mtproto) ||
-      proxies_[proxy_id].type() == Proxy::Type::Mtproto) {
-    update_mtproto_header(proxies_[proxy_id]);
-  }
-  save_proxy_last_used_date(0);
-
-  set_active_proxy_id(proxy_id);
-
-  on_proxy_changed(false);
-}
-
-void ConnectionCreator::disable_proxy_impl() {
-  if (active_proxy_id_ == 0) {
-    send_closure(G()->promo_data_manager(), &PromoDataManager::remove_sponsored_dialog);
-    send_closure(G()->promo_data_manager(), &PromoDataManager::reload_promo_data);
-    return;
-  }
-  CHECK(proxies_.count(active_proxy_id_) == 1);
-
-  if (proxies_[active_proxy_id_].type() == Proxy::Type::Mtproto) {
-    update_mtproto_header(Proxy());
-  }
-
-  set_active_proxy_id(0);
-
-  on_proxy_changed(false);
-}
-
-void ConnectionCreator::on_proxy_changed(bool from_db) {
-  send_closure(G()->state_manager(), &StateManager::on_proxy,
-               active_proxy_id_ != 0 && proxies_[active_proxy_id_].type() != Proxy::Type::Mtproto &&
-                   proxies_[active_proxy_id_].type() != Proxy::Type::HttpCaching);
-
-  if (!from_db) {
-    for (auto &child : children_) {
-      if (child.second.first) {
-        child.second.second.reset();
-      }
-    }
-  }
-
-  VLOG(connections) << "Drop proxy IP address " << proxy_ip_address_;
-  resolve_proxy_query_token_ = 0;
-  resolve_proxy_timestamp_ = Timestamp();
-  proxy_ip_address_ = IPAddress();
-
-  if (active_proxy_id_ == 0 || !from_db) {
-    send_closure(G()->promo_data_manager(), &PromoDataManager::remove_sponsored_dialog);
-  }
-  send_closure(G()->promo_data_manager(), &PromoDataManager::reload_promo_data);
-
-  loop();
-}
-
-string ConnectionCreator::get_proxy_database_key(int32 proxy_id) {
-  CHECK(proxy_id > 0);
-  if (proxy_id == 1) {
-    return "proxy";
-  }
-  return PSTRING() << "proxy" << proxy_id;
-}
-
-string ConnectionCreator::get_proxy_used_database_key(int32 proxy_id) {
-  CHECK(proxy_id > 0);
-  return PSTRING() << "proxy_used" << proxy_id;
-}
-
-void ConnectionCreator::save_proxy_last_used_date(int32 delay) {
-  if (active_proxy_id_ == 0) {
-    return;
-  }
-
-  CHECK(delay >= 0);
-  int32 date = proxy_last_used_date_[active_proxy_id_];
-  int32 &saved_date = proxy_last_used_saved_date_[active_proxy_id_];
-  if (date <= saved_date + delay) {
-    return;
-  }
-  LOG(DEBUG) << "Save proxy last used date " << date;
-
-  saved_date = date;
-  G()->td_db()->get_binlog_pmc()->set(get_proxy_used_database_key(active_proxy_id_), to_string(date));
-}
-
-td_api::object_ptr<td_api::proxy> ConnectionCreator::get_proxy_object(int32 proxy_id) const {
-  auto it = proxies_.find(proxy_id);
-  CHECK(it != proxies_.end());
-  const Proxy &proxy = it->second;
-  td_api::object_ptr<td_api::ProxyType> type;
-  switch (proxy.type()) {
-    case Proxy::Type::Socks5:
-      type = make_tl_object<td_api::proxyTypeSocks5>(proxy.user().str(), proxy.password().str());
-      break;
-    case Proxy::Type::HttpTcp:
-      type = make_tl_object<td_api::proxyTypeHttp>(proxy.user().str(), proxy.password().str(), false);
-      break;
-    case Proxy::Type::HttpCaching:
-      type = make_tl_object<td_api::proxyTypeHttp>(proxy.user().str(), proxy.password().str(), true);
-      break;
-    case Proxy::Type::Mtproto:
-      type = make_tl_object<td_api::proxyTypeMtproto>(proxy.secret().get_encoded_secret());
-      break;
-    default:
-      UNREACHABLE();
-  }
-  auto last_used_date_it = proxy_last_used_date_.find(proxy_id);
-  auto last_used_date = last_used_date_it == proxy_last_used_date_.end() ? 0 : last_used_date_it->second;
-  return make_tl_object<td_api::proxy>(proxy_id, proxy.server().str(), proxy.port(), last_used_date,
-                                       proxy_id == active_proxy_id_, std::move(type));
-}
-
-void ConnectionCreator::on_network(bool network_flag, uint32 network_generation) {
-  VLOG(connections) << "Receive network flag " << network_flag << " with generation " << network_generation;
-  network_flag_ = network_flag;
-  auto old_generation = network_generation_;
-  network_generation_ = network_generation;
-  if (network_flag_) {
-    VLOG(connections) << "Set proxy query token to 0: " << old_generation << " " << network_generation_;
-    resolve_proxy_query_token_ = 0;
-    resolve_proxy_timestamp_ = Timestamp();
-
-    for (auto &client : clients_) {
-      client.second.backoff.clear();
-      client.second.sanity_flood_control.clear_events();
-      client.second.flood_control.clear_events();
-      client.second.flood_control_online.clear_events();
-      client_loop(client.second);
-    }
-
-    if (old_generation != network_generation_) {
-      loop();
-    }
-  }
-}
-
-void ConnectionCreator::on_online(bool online_flag) {
-  VLOG(connections) << "Receive online flag " << online_flag;
-  bool need_drop_flood_control = online_flag || !online_flag_;
-  online_flag_ = online_flag;
-  if (need_drop_flood_control) {
-    for (auto &client : clients_) {
-      client.second.backoff.clear();
-      client.second.sanity_flood_control.clear_events();
-      client.second.flood_control_online.clear_events();
-      client_loop(client.second);
-    }
-  }
-}
-void ConnectionCreator::on_logging_out(bool is_logging_out) {
-  if (is_logging_out_ == is_logging_out) {
-    return;
-  }
-
-  VLOG(connections) << "Receive logging out flag " << is_logging_out;
-  is_logging_out_ = is_logging_out;
-  for (auto &client : clients_) {
-    client.second.backoff.clear();
-    client.second.sanity_flood_control.clear_events();
-    client.second.flood_control_online.clear_events();
-    client_loop(client.second);
-  }
-}
-
-void ConnectionCreator::on_pong(uint32 hash) {
-  G()->save_server_time();
-  if (active_proxy_id_ != 0) {
-    auto now = G()->unix_time();
-    int32 &last_used = proxy_last_used_date_[active_proxy_id_];
-    if (now > last_used) {
-      last_used = now;
-      save_proxy_last_used_date(MAX_PROXY_LAST_USED_SAVE_DELAY);
-    }
-  }
-}
-
-void ConnectionCreator::on_mtproto_error(uint32 hash) {
-  auto &client = clients_[hash];
-  client.hash = hash;
-  client.mtproto_error_flood_control.add_event(Time::now_cached());
-}
-
-void ConnectionCreator::request_raw_connection(DcId dc_id, bool allow_media_only, bool is_media,
-                                               Promise<unique_ptr<mtproto::RawConnection>> promise, uint32 hash,
-                                               unique_ptr<mtproto::AuthData> auth_data) {
-  auto &client = clients_[hash];
-  if (!client.inited) {
-    client.inited = true;
-    client.hash = hash;
-    client.dc_id = dc_id;
-    client.allow_media_only = allow_media_only;
-    client.is_media = is_media;
-  } else {
-    CHECK(client.hash == hash);
-    CHECK(client.dc_id == dc_id);
-    CHECK(client.allow_media_only == allow_media_only);
-    CHECK(client.is_media == is_media);
-  }
-  client.auth_data = std::move(auth_data);
-  client.auth_data_generation++;
-  VLOG(connections) << "Request connection for " << tag("client", format::as_hex(client.hash)) << " to " << dc_id << " "
-                    << tag("allow_media_only", allow_media_only);
-  client.queries.push_back(std::move(promise));
-
-  client_loop(client);
-}
-
-void ConnectionCreator::request_raw_connection_by_ip(IPAddress ip_address, mtproto::TransportType transport_type,
-                                                     Promise<unique_ptr<mtproto::RawConnection>> promise) {
-  TRY_RESULT_PROMISE(promise, socket_fd, SocketFd::open(ip_address));
-
-  auto connection_promise = PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise),
-                                                    transport_type, network_generation = network_generation_,
-                                                    ip_address](Result<ConnectionData> r_connection_data) mutable {
-    if (r_connection_data.is_error()) {
-      return promise.set_error(Status::Error(400, r_connection_data.error().public_message()));
-    }
-    auto connection_data = r_connection_data.move_as_ok();
-    auto raw_connection = mtproto::RawConnection::create(ip_address, std::move(connection_data.buffered_socket_fd),
-                                                         transport_type, nullptr);
-    raw_connection->extra().extra = network_generation;
-    promise.set_value(std::move(raw_connection));
-  });
-
-  auto token = next_token();
-  auto ref = prepare_connection(ip_address, std::move(socket_fd), Proxy(), IPAddress(), transport_type, "Raw",
-                                PSTRING() << "to IP address " << ip_address, nullptr, create_reference(token), false,
-                                std::move(connection_promise));
-  if (!ref.empty()) {
-    children_[token] = {false, std::move(ref)};
-  }
-}
-
-Result<mtproto::TransportType> ConnectionCreator::get_transport_type(const Proxy &proxy,
-                                                                     const DcOptionsSet::ConnectionInfo &info) {
-  int32 int_dc_id = info.option->get_dc_id().get_raw_id();
-  if (G()->is_test_dc()) {
-    int_dc_id += 10000;
-  }
-  auto raw_dc_id = narrow_cast<int16>(info.option->is_media_only() ? -int_dc_id : int_dc_id);
-
-  if (proxy.use_mtproto_proxy()) {
-    return mtproto::TransportType{mtproto::TransportType::ObfuscatedTcp, raw_dc_id, proxy.secret()};
-  }
-  if (proxy.use_http_caching_proxy()) {
-    CHECK(info.option != nullptr);
-    string proxy_authorization;
-    if (!proxy.user().empty() || !proxy.password().empty()) {
-      proxy_authorization = "|basic " + base64_encode(PSLICE() << proxy.user() << ':' << proxy.password());
-    }
-    return mtproto::TransportType{mtproto::TransportType::Http, 0,
-                                  mtproto::ProxySecret::from_raw(
-                                      PSTRING() << info.option->get_ip_address().get_ip_host() << proxy_authorization)};
-  }
-
-  if (info.use_http) {
-    return mtproto::TransportType{mtproto::TransportType::Http, 0, mtproto::ProxySecret()};
-  } else {
-    return mtproto::TransportType{mtproto::TransportType::ObfuscatedTcp, raw_dc_id, info.option->get_secret()};
-  }
-}
-
-Result<SocketFd> ConnectionCreator::find_connection(const Proxy &proxy, const IPAddress &proxy_ip_address, DcId dc_id,
-                                                    bool allow_media_only, FindConnectionExtra &extra) {
-  extra.debug_str = PSTRING() << "Failed to find valid IP address for " << dc_id;
-  bool prefer_ipv6 = G()->get_option_boolean("prefer_ipv6") || (proxy.use_proxy() && proxy_ip_address.is_ipv6());
-  bool only_http = proxy.use_http_caching_proxy();
-#if TD_DARWIN_WATCH_OS
-  only_http = true;
-#endif
-  TRY_RESULT(info, dc_options_set_.find_connection(
-                       dc_id, allow_media_only, proxy.use_proxy() && proxy.use_socks5_proxy(), prefer_ipv6, only_http));
-  extra.stat = info.stat;
-  TRY_RESULT_ASSIGN(extra.transport_type, get_transport_type(proxy, info));
-
-  extra.debug_str = PSTRING() << " to " << (info.option->is_media_only() ? "MEDIA " : "") << dc_id
-                              << (info.use_http ? " over HTTP" : "");
-
-  if (proxy.use_mtproto_proxy()) {
-    extra.debug_str = PSTRING() << "MTProto " << proxy_ip_address << extra.debug_str;
-
-    VLOG(connections) << "Create: " << extra.debug_str;
-    return SocketFd::open(proxy_ip_address);
-  }
-
-  extra.check_mode |= info.should_check;
-
-  if (proxy.use_proxy()) {
-    extra.mtproto_ip_address = info.option->get_ip_address();
-    extra.ip_address = proxy_ip_address;
-    extra.debug_str = PSTRING() << (proxy.use_socks5_proxy() ? "Socks5" : (only_http ? "HTTP_ONLY" : "HTTP_TCP")) << ' '
-                                << proxy_ip_address << " --> " << extra.mtproto_ip_address << extra.debug_str;
-  } else {
-    extra.ip_address = info.option->get_ip_address();
-    extra.debug_str = PSTRING() << info.option->get_ip_address() << extra.debug_str;
-  }
-  VLOG(connections) << "Create: " << extra.debug_str;
-  return SocketFd::open(extra.ip_address);
-}
-
-ActorOwn<> ConnectionCreator::prepare_connection(IPAddress ip_address, SocketFd socket_fd, const Proxy &proxy,
-                                                 const IPAddress &mtproto_ip_address,
-                                                 const mtproto::TransportType &transport_type, Slice actor_name_prefix,
-                                                 Slice debug_str,
-                                                 unique_ptr<mtproto::RawConnection::StatsCallback> stats_callback,
-                                                 ActorShared<> parent, bool use_connection_token,
-                                                 Promise<ConnectionData> promise) {
-  if (proxy.use_socks5_proxy() || proxy.use_http_tcp_proxy() || transport_type.secret.emulate_tls()) {
-    VLOG(connections) << "Create new transparent proxy connection " << debug_str;
-    class Callback final : public TransparentProxy::Callback {
-     public:
-      Callback(Promise<ConnectionData> promise, IPAddress ip_address,
-               unique_ptr<mtproto::RawConnection::StatsCallback> stats_callback, bool use_connection_token,
-               bool was_connected)
-          : promise_(std::move(promise))
-          , ip_address_(std::move(ip_address))
-          , stats_callback_(std::move(stats_callback))
-          , use_connection_token_(use_connection_token)
-          , was_connected_(was_connected) {
-      }
-      void set_result(Result<BufferedFd<SocketFd>> r_buffered_socket_fd) final {
-        if (r_buffered_socket_fd.is_error()) {
-          if (use_connection_token_) {
-            connection_token_ = mtproto::ConnectionManager::ConnectionToken();
-          }
-          if (was_connected_ && stats_callback_) {
-            stats_callback_->on_error();
-          }
-          promise_.set_error(Status::Error(400, r_buffered_socket_fd.error().public_message()));
-        } else {
-          ConnectionData data;
-          data.ip_address = ip_address_;
-          data.buffered_socket_fd = r_buffered_socket_fd.move_as_ok();
-          data.connection_token = std::move(connection_token_);
-          data.stats_callback = std::move(stats_callback_);
-          promise_.set_value(std::move(data));
-        }
-      }
-      void on_connected() final {
-        if (use_connection_token_) {
-          connection_token_ = mtproto::ConnectionManager::connection_proxy(
-              static_cast<ActorId<mtproto::ConnectionManager>>(G()->state_manager()));
-        }
-        was_connected_ = true;
-      }
-
-     private:
-      Promise<ConnectionData> promise_;
-      mtproto::ConnectionManager::ConnectionToken connection_token_;
-      IPAddress ip_address_;
-      unique_ptr<mtproto::RawConnection::StatsCallback> stats_callback_;
-      bool use_connection_token_{false};
-      bool was_connected_{false};
-    };
-    VLOG(connections) << "Start "
-                      << (proxy.use_socks5_proxy() ? "Socks5" : (proxy.use_http_tcp_proxy() ? "HTTP" : "TLS")) << ": "
-                      << debug_str;
-    auto callback = make_unique<Callback>(std::move(promise), ip_address, std::move(stats_callback),
-                                          use_connection_token, !proxy.use_socks5_proxy());
-    if (proxy.use_socks5_proxy()) {
-      return ActorOwn<>(create_actor<Socks5>(PSLICE() << actor_name_prefix << "Socks5", std::move(socket_fd),
-                                             mtproto_ip_address, proxy.user().str(), proxy.password().str(),
-                                             std::move(callback), std::move(parent)));
-    } else if (proxy.use_http_tcp_proxy()) {
-      return ActorOwn<>(create_actor<HttpProxy>(PSLICE() << actor_name_prefix << "HttpProxy", std::move(socket_fd),
-                                                mtproto_ip_address, proxy.user().str(), proxy.password().str(),
-                                                std::move(callback), std::move(parent)));
-    } else if (transport_type.secret.emulate_tls()) {
-      return ActorOwn<>(create_actor<mtproto::TlsInit>(
-          PSLICE() << actor_name_prefix << "TlsInit", std::move(socket_fd), transport_type.secret.get_domain(),
-          transport_type.secret.get_proxy_secret().str(), std::move(callback), std::move(parent),
-          G()->get_dns_time_difference()));
-    } else {
-      UNREACHABLE();
-    }
-  } else {
-    VLOG(connections) << "Create new direct connection " << debug_str;
-
-    ConnectionData data;
-    data.ip_address = ip_address;
-    data.buffered_socket_fd = BufferedFd<SocketFd>(std::move(socket_fd));
-    data.stats_callback = std::move(stats_callback);
-    promise.set_result(std::move(data));
-    return {};
-  }
-}
-
-void ConnectionCreator::client_loop(ClientInfo &client) {
-  CHECK(client.hash != 0);
-  if (!network_flag_) {
-    VLOG(connections) << "Exit client_loop, because there is no network";
-    return;
-  }
-  if (close_flag_) {
-    VLOG(connections) << "Exit client_loop, because of closing";
-    return;
-  }
-
-  Proxy proxy = active_proxy_id_ == 0 ? Proxy() : proxies_[active_proxy_id_];
-
-  if (proxy.use_proxy() && !proxy_ip_address_.is_valid()) {
-    VLOG(connections) << "Exit client_loop, because there is no valid IP address for proxy: " << proxy_ip_address_;
-    return;
-  }
-
-  VLOG(connections) << "In client_loop: " << tag("client", format::as_hex(client.hash));
-
-  // Remove expired ready connections
-  td::remove_if(client.ready_connections,
-                [&, expires_at = Time::now_cached() - ClientInfo::READY_CONNECTIONS_TIMEOUT](auto &v) {
-                  bool drop = v.second < expires_at;
-                  VLOG_IF(connections, drop) << "Drop expired " << tag("connection", v.first.get());
-                  return drop;
-                });
-
-  // Send ready connections into promises
-  {
-    auto begin = client.queries.begin();
-    auto it = begin;
-    while (it != client.queries.end() && !client.ready_connections.empty()) {
-      if (!it->is_canceled()) {
-        VLOG(connections) << "Send to promise " << tag("connection", client.ready_connections.back().first.get());
-        it->set_value(std::move(client.ready_connections.back().first));
-        client.ready_connections.pop_back();
-      }
-      ++it;
-    }
-    client.queries.erase(begin, it);
-  }
-
-  // Main loop. Create new connections till needed
-  bool check_mode = client.checking_connections != 0 && !proxy.use_proxy();
-  while (true) {
-    // Check if we need new connections
-    if (client.queries.empty()) {
-      if (!client.ready_connections.empty()) {
-        client_set_timeout_at(client, Time::now() + ClientInfo::READY_CONNECTIONS_TIMEOUT);
-      }
-      return;
-    }
-    if (check_mode) {
-      if (client.checking_connections >= 3) {
-        return;
-      }
-    } else {
-      if (client.pending_connections >= client.queries.size()) {
-        return;
-      }
-    }
-
-    bool act_as_if_online = online_flag_ || is_logging_out_;
-    // Check flood
-    auto &flood_control = act_as_if_online ? client.flood_control_online : client.flood_control;
-    auto wakeup_at = max(flood_control.get_wakeup_at(), client.mtproto_error_flood_control.get_wakeup_at());
-    wakeup_at = max(client.sanity_flood_control.get_wakeup_at(), wakeup_at);
-
-    if (!act_as_if_online) {
-      wakeup_at = max(wakeup_at, static_cast<double>(client.backoff.get_wakeup_at()));
-    }
-    if (wakeup_at > Time::now()) {
-      return client_set_timeout_at(client, wakeup_at);
-    }
-    client.sanity_flood_control.add_event(Time::now());
-    if (!act_as_if_online) {
-      client.backoff.add_event(static_cast<int32>(Time::now()));
-    }
-
-    // Create new RawConnection
-    // sync part
-    FindConnectionExtra extra;
-    auto r_socket_fd = find_connection(proxy, proxy_ip_address_, client.dc_id, client.allow_media_only, extra);
-    check_mode |= extra.check_mode;
-    if (r_socket_fd.is_error()) {
-      LOG(WARNING) << extra.debug_str << ": " << r_socket_fd.error();
-      if (extra.stat) {
-        extra.stat->on_error();  // TODO: different kind of error
-      }
-      return client_set_timeout_at(client, Time::now() + 0.1);
-    }
-
-    // Events with failed socket creation are ignored
-    flood_control.add_event(Time::now());
-
-    auto socket_fd = r_socket_fd.move_as_ok();
-#if !TD_DARWIN_WATCH_OS
-    IPAddress debug_ip;
-    auto debug_ip_status = debug_ip.init_socket_address(socket_fd);
-    if (debug_ip_status.is_ok()) {
-      extra.debug_str = PSTRING() << extra.debug_str << " from " << debug_ip;
-    } else {
-      LOG(ERROR) << debug_ip_status;
-    }
-#endif
-
-    client.pending_connections++;
-    if (check_mode) {
-      if (extra.stat) {
-        extra.stat->on_check();
-      }
-      client.checking_connections++;
-    }
-
-    auto promise = PromiseCreator::lambda(
-        [actor_id = actor_id(this), check_mode, transport_type = extra.transport_type, hash = client.hash,
-         debug_str = extra.debug_str,
-         network_generation = network_generation_](Result<ConnectionData> r_connection_data) mutable {
-          send_closure(actor_id, &ConnectionCreator::client_create_raw_connection, std::move(r_connection_data),
-                       check_mode, std::move(transport_type), hash, std::move(debug_str), network_generation);
-        });
-
-    auto stats_callback =
-        td::make_unique<detail::StatsCallback>(client.is_media ? media_net_stats_callback_ : common_net_stats_callback_,
-                                               actor_id(this), client.hash, extra.stat);
-    auto token = next_token();
-    auto ref = prepare_connection(extra.ip_address, std::move(socket_fd), proxy, extra.mtproto_ip_address,
-                                  extra.transport_type, Slice(), extra.debug_str, std::move(stats_callback),
-                                  create_reference(token), true, std::move(promise));
-    if (!ref.empty()) {
-      children_[token] = {true, std::move(ref)};
-    }
-  }
-}
-
-void ConnectionCreator::client_create_raw_connection(Result<ConnectionData> r_connection_data, bool check_mode,
-                                                     mtproto::TransportType transport_type, uint32 hash,
-                                                     string debug_str, uint32 network_generation) {
-  unique_ptr<mtproto::AuthData> auth_data;
-  uint64 auth_data_generation{0};
-  uint64 session_id{0};
-  if (check_mode) {
-    auto it = clients_.find(hash);
-    CHECK(it != clients_.end());
-    const auto &auth_data_ptr = it->second.auth_data;
-    if (auth_data_ptr && auth_data_ptr->use_pfs() && auth_data_ptr->has_auth_key(Time::now_cached())) {
-      auth_data = make_unique<mtproto::AuthData>(*auth_data_ptr);
-      auth_data_generation = it->second.auth_data_generation;
-      session_id = it->second.extract_session_id();
-      auth_data->set_session_id(session_id);
-    }
-  }
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), hash, check_mode, auth_data_generation, session_id,
-                                         debug_str](Result<unique_ptr<mtproto::RawConnection>> result) mutable {
-    if (result.is_ok()) {
-      VLOG(connections) << "Ready connection (" << (check_mode ? "" : "un") << "checked) " << result.ok().get() << ' '
-                        << tag("rtt", format::as_time(result.ok()->extra().rtt)) << ' ' << debug_str;
-    } else {
-      VLOG(connections) << "Failed connection (" << (check_mode ? "" : "un") << "checked) " << result.error() << ' '
-                        << debug_str;
-    }
-    send_closure(actor_id, &ConnectionCreator::client_add_connection, hash, std::move(result), check_mode,
-                 auth_data_generation, session_id);
-  });
-
-  if (r_connection_data.is_error()) {
-    return promise.set_error(r_connection_data.move_as_error());
-  }
-
-  auto connection_data = r_connection_data.move_as_ok();
-  auto raw_connection =
-      mtproto::RawConnection::create(connection_data.ip_address, std::move(connection_data.buffered_socket_fd),
-                                     std::move(transport_type), std::move(connection_data.stats_callback));
-  raw_connection->set_connection_token(std::move(connection_data.connection_token));
-
-  raw_connection->extra().extra = network_generation;
-  raw_connection->extra().debug_str = debug_str;
-
-  if (check_mode) {
-    VLOG(connections) << "Start check: " << debug_str << " " << (auth_data ? "with" : "without") << " auth data";
-    auto token = next_token();
-    children_[token] = {true, create_ping_actor(debug_str, std::move(raw_connection), std::move(auth_data),
-                                                std::move(promise), create_reference(token))};
-  } else {
-    promise.set_value(std::move(raw_connection));
-  }
-}
-
-void ConnectionCreator::client_set_timeout_at(ClientInfo &client, double wakeup_at) {
-  if (!client.slot.has_event()) {
-    client.slot.set_event(self_closure(this, &ConnectionCreator::client_wakeup, client.hash));
-  }
-  client.slot.set_timeout_at(wakeup_at);
-  VLOG(connections) << tag("client", format::as_hex(client.hash)) << " set timeout in "
-                    << wakeup_at - Time::now_cached();
-}
-
-void ConnectionCreator::client_add_connection(uint32 hash, Result<unique_ptr<mtproto::RawConnection>> r_raw_connection,
-                                              bool check_flag, uint64 auth_data_generation, uint64 session_id) {
-  auto &client = clients_[hash];
-  client.add_session_id(session_id);
-  CHECK(client.pending_connections > 0);
-  client.pending_connections--;
-  if (check_flag) {
-    CHECK(client.checking_connections > 0);
-    client.checking_connections--;
-  }
-  if (r_raw_connection.is_ok()) {
-    VLOG(connections) << "Add ready connection " << r_raw_connection.ok().get() << " for "
-                      << tag("client", format::as_hex(hash));
-    client.backoff.clear();
-    client.ready_connections.emplace_back(r_raw_connection.move_as_ok(), Time::now_cached());
-  } else {
-    if (r_raw_connection.error().code() == -404 && client.auth_data &&
-        client.auth_data_generation == auth_data_generation) {
-      VLOG(connections) << "Drop auth data from " << tag("client", format::as_hex(hash));
-      client.auth_data = nullptr;
-      client.auth_data_generation++;
-    }
-  }
-  client_loop(client);
-}
-
-void ConnectionCreator::client_wakeup(uint32 hash) {
-  VLOG(connections) << tag("hash", format::as_hex(hash)) << " wakeup";
-  G()->save_server_time();
-  client_loop(clients_[hash]);
-}
-
-void ConnectionCreator::on_dc_options(DcOptions new_dc_options) {
-  VLOG(connections) << "SAVE " << new_dc_options;
-  G()->td_db()->get_binlog_pmc()->set("dc_options", serialize(new_dc_options));
-  dc_options_set_.reset();
-  add_dc_options(std::move(new_dc_options));
-}
-
-void ConnectionCreator::add_dc_options(DcOptions &&new_dc_options) {
-  dc_options_set_.add_dc_options(get_default_dc_options(G()->is_test_dc()));
-#if !TD_EMSCRIPTEN  // FIXME
-  dc_options_set_.add_dc_options(std::move(new_dc_options));
-#endif
-}
-
-void ConnectionCreator::on_dc_update(DcId dc_id, string ip_port, Promise<> promise) {
-  if (!dc_id.is_exact()) {
-    return promise.set_error(Status::Error("Invalid dc_id"));
-  }
-
-  IPAddress ip_address;
-  TRY_STATUS_PROMISE(promise, ip_address.init_host_port(ip_port));
-  DcOptions options;
-  options.dc_options.emplace_back(dc_id, ip_address);
-  send_closure(G()->config_manager(), &ConfigManager::on_dc_options_update, std::move(options));
-  promise.set_value(Unit());
-}
-
-void ConnectionCreator::update_mtproto_header(const Proxy &proxy) {
-  if (G()->have_mtproto_header()) {
-    G()->mtproto_header().set_proxy(proxy);
-  }
-  if (G()->have_net_query_dispatcher()) {
-    G()->net_query_dispatcher().update_mtproto_header();
-  }
-}
-
-void ConnectionCreator::start_up() {
-  class StateCallback final : public StateManager::Callback {
-   public:
-    explicit StateCallback(ActorId<ConnectionCreator> connection_creator)
-        : connection_creator_(std::move(connection_creator)) {
-    }
-    bool on_network(NetType network_type, uint32 generation) final {
-      send_closure(connection_creator_, &ConnectionCreator::on_network, network_type != NetType::None, generation);
-      return connection_creator_.is_alive();
-    }
-    bool on_online(bool online_flag) final {
-      send_closure(connection_creator_, &ConnectionCreator::on_online, online_flag);
-      return connection_creator_.is_alive();
-    }
-    bool on_logging_out(bool is_logging_out) final {
-      send_closure(connection_creator_, &ConnectionCreator::on_logging_out, is_logging_out);
-      return connection_creator_.is_alive();
-    }
-
-   private:
-    ActorId<ConnectionCreator> connection_creator_;
-  };
-  send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-
-  auto serialized_dc_options = G()->td_db()->get_binlog_pmc()->get("dc_options");
-  DcOptions dc_options;
-  auto status = unserialize(dc_options, serialized_dc_options);
-  if (status.is_error()) {
-    on_dc_options(DcOptions());
-  } else {
-    add_dc_options(std::move(dc_options));
-  }
-
-  if (G()->td_db()->get_binlog_pmc()->get("proxy_max_id") != "2" ||
-      !G()->td_db()->get_binlog_pmc()->get(get_proxy_database_key(1)).empty()) {
-    // don't need to init proxies if they have never been added
-    init_proxies();
-  } else {
-    max_proxy_id_ = 2;
-  }
-
-  ref_cnt_guard_ = create_reference(-1);
-
-  is_inited_ = true;
-  loop();
-}
-
-void ConnectionCreator::init_proxies() {
-  auto proxy_info = G()->td_db()->get_binlog_pmc()->prefix_get("proxy");
-  auto it = proxy_info.find("_max_id");
-  if (it != proxy_info.end()) {
-    max_proxy_id_ = to_integer<int32>(it->second);
-    proxy_info.erase(it);
-  }
-  it = proxy_info.find("_active_id");
-  if (it != proxy_info.end()) {
-    set_active_proxy_id(to_integer<int32>(it->second), true);
-    proxy_info.erase(it);
-  }
-
-  for (auto &info : proxy_info) {
-    if (begins_with(info.first, "_used")) {
-      auto proxy_id = to_integer_safe<int32>(Slice(info.first).substr(5)).move_as_ok();
-      auto last_used = to_integer_safe<int32>(info.second).move_as_ok();
-      CHECK(proxy_id > 0);
-      proxy_last_used_date_[proxy_id] = last_used;
-      proxy_last_used_saved_date_[proxy_id] = last_used;
-    } else {
-      LOG_CHECK(!ends_with(info.first, "_max_id")) << info.first;
-      auto proxy_id = info.first.empty() ? static_cast<int32>(1) : to_integer_safe<int32>(info.first).move_as_ok();
-      CHECK(proxy_id > 0);
-      CHECK(proxies_.count(proxy_id) == 0);
-      log_event_parse(proxies_[proxy_id], info.second).ensure();
-      if (proxies_[proxy_id].type() == Proxy::Type::None) {
-        LOG_IF(ERROR, proxy_id != 1) << "Have empty proxy " << proxy_id;
-        G()->td_db()->get_binlog_pmc()->erase(get_proxy_database_key(proxy_id));
-        G()->td_db()->get_binlog_pmc()->erase(get_proxy_used_database_key(proxy_id));
-        proxies_.erase(proxy_id);
-        if (active_proxy_id_ == proxy_id) {
-          set_active_proxy_id(0);
-        }
-      }
-    }
-  }
-
-  if (max_proxy_id_ == 0) {
-    // legacy one-proxy version
-    max_proxy_id_ = 2;
-    if (!proxies_.empty()) {
-      CHECK(proxies_.begin()->first == 1);
-      set_active_proxy_id(1);
-    }
-    G()->td_db()->get_binlog_pmc()->set("proxy_max_id", "2");
-  } else if (max_proxy_id_ < 2) {
-    LOG(ERROR) << "Found wrong max_proxy_id = " << max_proxy_id_;
-    max_proxy_id_ = 2;
-  }
-
-  if (active_proxy_id_ != 0) {
-    if (proxies_[active_proxy_id_].type() == Proxy::Type::Mtproto) {
-      update_mtproto_header(proxies_[active_proxy_id_]);
-    }
-
-    on_proxy_changed(true);
-  }
-}
-
-void ConnectionCreator::hangup_shared() {
-  ref_cnt_--;
-  children_.erase(get_link_token());
-  if (ref_cnt_ == 0) {
-    stop();
-  }
-}
-
-ActorShared<ConnectionCreator> ConnectionCreator::create_reference(int64 token) {
-  CHECK(token != 0);
-  ref_cnt_++;
-  return actor_shared(this, token);
-}
-
-void ConnectionCreator::hangup() {
-  close_flag_ = true;
-  save_proxy_last_used_date(0);
-  ref_cnt_guard_.reset();
-  for (auto &child : children_) {
-    child.second.second.reset();
-  }
-}
-
-DcOptions ConnectionCreator::get_default_dc_options(bool is_test) {
-  DcOptions res;
-  enum class HostType : int32 { IPv4, IPv6, Url };
-  auto add_ip_ports = [&res](int32 dc_id, vector<string> ip_address_strings, const vector<int> &ports,
-                             HostType type = HostType::IPv4) {
-    IPAddress ip_address;
-    Random::shuffle(ip_address_strings);
-    for (auto port : ports) {
-      for (auto &ip_address_string : ip_address_strings) {
-        switch (type) {
-          case HostType::IPv4:
-            ip_address.init_ipv4_port(ip_address_string, port).ensure();
-            break;
-          case HostType::IPv6:
-            ip_address.init_ipv6_port(ip_address_string, port).ensure();
-            break;
-          case HostType::Url:
-            ip_address.init_host_port(ip_address_string, port).ensure();
-            break;
-        }
-        res.dc_options.emplace_back(DcId::internal(dc_id), ip_address);
-      }
-    }
-  };
-  vector<int> ports = {443, 80, 5222};
-#if TD_EMSCRIPTEN
-  if (is_test) {
-    add_ip_ports(1, {"pluto.web.telegram.org/apiws_test"}, {443}, HostType::Url);
-    add_ip_ports(2, {"venus.web.telegram.org/apiws_test"}, {443}, HostType::Url);
-    add_ip_ports(3, {"aurora.web.telegram.org/apiws_test"}, {443}, HostType::Url);
-  } else {
-    add_ip_ports(1, {"pluto.web.telegram.org/apiws"}, {443}, HostType::Url);
-    add_ip_ports(2, {"venus.web.telegram.org/apiws"}, {443}, HostType::Url);
-    add_ip_ports(3, {"aurora.web.telegram.org/apiws"}, {443}, HostType::Url);
-    add_ip_ports(4, {"vesta.web.telegram.org/apiws"}, {443}, HostType::Url);
-    add_ip_ports(5, {"flora.web.telegram.org/apiws"}, {443}, HostType::Url);
-  }
-#else
-  if (is_test) {
-    add_ip_ports(1, {"149.154.175.10"}, ports);
-    add_ip_ports(2, {"149.154.167.40"}, ports);
-    add_ip_ports(3, {"149.154.175.117"}, ports);
-
-    add_ip_ports(1, {"2001:b28:f23d:f001::e"}, ports, HostType::IPv6);
-    add_ip_ports(2, {"2001:67c:4e8:f002::e"}, ports, HostType::IPv6);
-    add_ip_ports(3, {"2001:b28:f23d:f003::e"}, ports, HostType::IPv6);
-  } else {
-    add_ip_ports(1, {"149.154.175.50"}, ports);
-    add_ip_ports(2, {"149.154.167.51", "95.161.76.100"}, ports);
-    add_ip_ports(3, {"149.154.175.100"}, ports);
-    add_ip_ports(4, {"149.154.167.91"}, ports);
-    add_ip_ports(5, {"149.154.171.5"}, ports);
-
-    add_ip_ports(1, {"2001:b28:f23d:f001::a"}, ports, HostType::IPv6);
-    add_ip_ports(2, {"2001:67c:4e8:f002::a"}, ports, HostType::IPv6);
-    add_ip_ports(3, {"2001:b28:f23d:f003::a"}, ports, HostType::IPv6);
-    add_ip_ports(4, {"2001:67c:4e8:f004::a"}, ports, HostType::IPv6);
-    add_ip_ports(5, {"2001:b28:f23f:f005::a"}, ports, HostType::IPv6);
-  }
-#endif
-  return res;
-}
-
-void ConnectionCreator::loop() {
-  if (G()->close_flag()) {
-    return;
-  }
-  if (!is_inited_) {
-    return;
-  }
-  if (!network_flag_) {
-    return;
-  }
-
-  Timestamp timeout;
-  if (active_proxy_id_ != 0) {
-    if (resolve_proxy_timestamp_.is_in_past()) {
-      if (resolve_proxy_query_token_ == 0) {
-        resolve_proxy_query_token_ = next_token();
-        const Proxy &proxy = proxies_[active_proxy_id_];
-        bool prefer_ipv6 = G()->get_option_boolean("prefer_ipv6");
-        VLOG(connections) << "Resolve IP address " << resolve_proxy_query_token_ << " of " << proxy.server();
-        send_closure(
-            get_dns_resolver(), &GetHostByNameActor::run, proxy.server().str(), proxy.port(), prefer_ipv6,
-            PromiseCreator::lambda([actor_id = create_reference(resolve_proxy_query_token_)](Result<IPAddress> result) {
-              send_closure(actor_id, &ConnectionCreator::on_proxy_resolved, std::move(result), false);
-            }));
-      }
-    } else {
-      CHECK(resolve_proxy_query_token_ == 0);
-      timeout.relax(resolve_proxy_timestamp_);
-    }
-  }
-
-  if (timeout) {
-    set_timeout_at(timeout.at());
-  }
-}
-
-void ConnectionCreator::on_proxy_resolved(Result<IPAddress> r_ip_address, bool dummy) {
-  SCOPE_EXIT {
-    loop();
-  };
-
-  if (get_link_token() != resolve_proxy_query_token_) {
-    VLOG(connections) << "Ignore unneeded proxy IP address " << get_link_token() << ", expected "
-                      << resolve_proxy_query_token_;
-    return;
-  }
-
-  resolve_proxy_query_token_ = 0;
-  if (r_ip_address.is_error()) {
-    VLOG(connections) << "Receive error for resolving proxy IP address: " << r_ip_address.error();
-    resolve_proxy_timestamp_ = Timestamp::in(1 * 60);
-    return;
-  }
-  proxy_ip_address_ = r_ip_address.move_as_ok();
-  VLOG(connections) << "Set proxy IP address to " << proxy_ip_address_;
-  resolve_proxy_timestamp_ = Timestamp::in(5 * 60);
-  for (auto &client : clients_) {
-    client_loop(client.second);
-  }
-}
-
-void ConnectionCreator::on_ping_main_dc_result(uint64 token, Result<double> result) {
-  auto &request = ping_main_dc_requests_[token];
-  CHECK(request.left_queries > 0);
-  if (result.is_error()) {
-    LOG(DEBUG) << "Receive ping error " << result.error();
-    if (request.result.is_error()) {
-      request.result = std::move(result);
-    }
-  } else {
-    LOG(DEBUG) << "Receive ping result " << result.ok();
-    if (request.result.is_error() || request.result.ok() > result.ok()) {
-      request.result = result.ok();
-    }
-  }
-
-  if (--request.left_queries == 0) {
-    if (request.result.is_error()) {
-      request.promise.set_error(Status::Error(400, request.result.error().public_message()));
-    } else {
-      request.promise.set_value(request.result.move_as_ok());
-    }
-    ping_main_dc_requests_.erase(token);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/ConnectionCreator.h b/third-party/td/td/td/telegram/net/ConnectionCreator.h
deleted file mode 100644
index 5c45f325b1..0000000000
--- a/third-party/td/td/td/telegram/net/ConnectionCreator.h
+++ /dev/null
@@ -1,281 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/DcOptions.h"
-#include "td/telegram/net/DcOptionsSet.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/Proxy.h"
-#include "td/telegram/td_api.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/ConnectionManager.h"
-#include "td/mtproto/Handshake.h"
-#include "td/mtproto/RawConnection.h"
-#include "td/mtproto/TransportType.h"
-
-#include "td/net/NetStats.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/SignalSlot.h"
-
-#include "td/utils/BufferedFd.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FloodControlStrict.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <map>
-#include <memory>
-#include <set>
-#include <utility>
-
-namespace td {
-
-namespace detail {
-class StatsCallback;
-}  // namespace detail
-
-class GetHostByNameActor;
-
-extern int VERBOSITY_NAME(connections);
-
-class ConnectionCreator final : public NetQueryCallback {
- public:
-  explicit ConnectionCreator(ActorShared<> parent);
-  ConnectionCreator(ConnectionCreator &&other);
-  ConnectionCreator &operator=(ConnectionCreator &&other);
-  ~ConnectionCreator() final;
-
-  void on_dc_options(DcOptions new_dc_options);
-  void on_dc_update(DcId dc_id, string ip_port, Promise<> promise);
-  void on_pong(uint32 hash);
-  void on_mtproto_error(uint32 hash);
-  void request_raw_connection(DcId dc_id, bool allow_media_only, bool is_media,
-                              Promise<unique_ptr<mtproto::RawConnection>> promise, uint32 hash = 0,
-                              unique_ptr<mtproto::AuthData> auth_data = {});
-  void request_raw_connection_by_ip(IPAddress ip_address, mtproto::TransportType transport_type,
-                                    Promise<unique_ptr<mtproto::RawConnection>> promise);
-
-  void set_net_stats_callback(std::shared_ptr<NetStatsCallback> common_callback,
-                              std::shared_ptr<NetStatsCallback> media_callback);
-
-  void add_proxy(int32 old_proxy_id, string server, int32 port, bool enable,
-                 td_api::object_ptr<td_api::ProxyType> proxy_type, Promise<td_api::object_ptr<td_api::proxy>> promise);
-  void enable_proxy(int32 proxy_id, Promise<Unit> promise);
-  void disable_proxy(Promise<Unit> promise);
-  void remove_proxy(int32 proxy_id, Promise<Unit> promise);
-  void get_proxies(Promise<td_api::object_ptr<td_api::proxies>> promise);
-  void get_proxy_link(int32 proxy_id, Promise<string> promise);
-  void ping_proxy(int32 proxy_id, Promise<double> promise);
-
-  void test_proxy(Proxy &&proxy, int32 dc_id, double timeout, Promise<Unit> &&promise);
-
- private:
-  ActorShared<> parent_;
-  DcOptionsSet dc_options_set_;
-  bool network_flag_ = false;
-  uint32 network_generation_ = 0;
-  bool online_flag_ = false;
-  bool is_logging_out_ = false;
-  bool is_inited_ = false;
-
-  static constexpr int32 MAX_PROXY_LAST_USED_SAVE_DELAY = 60;
-  std::map<int32, Proxy> proxies_;
-  FlatHashMap<int32, int32> proxy_last_used_date_;
-  FlatHashMap<int32, int32> proxy_last_used_saved_date_;
-  int32 max_proxy_id_ = 0;
-  int32 active_proxy_id_ = 0;
-  ActorOwn<GetHostByNameActor> get_host_by_name_actor_;
-  ActorOwn<GetHostByNameActor> block_get_host_by_name_actor_;
-  IPAddress proxy_ip_address_;
-  Timestamp resolve_proxy_timestamp_;
-  uint64 resolve_proxy_query_token_{0};
-
-  struct ClientInfo {
-    class Backoff {
-#if TD_ANDROID || TD_DARWIN_IOS || TD_DARWIN_VISION_OS || TD_DARWIN_WATCH_OS || TD_TIZEN
-      static constexpr int32 MAX_BACKOFF = 300;
-#else
-      static constexpr int32 MAX_BACKOFF = 16;
-#endif
-
-     public:
-      void add_event(int32 now) {
-        wakeup_at_ = now + next_delay_;
-        next_delay_ = min(MAX_BACKOFF, next_delay_ * 2);
-      }
-      int32 get_wakeup_at() const {
-        return wakeup_at_;
-      }
-      void clear() {
-        *this = {};
-      }
-
-     private:
-      int32 wakeup_at_{0};
-      int32 next_delay_ = 1;
-    };
-    ClientInfo();
-    uint64 extract_session_id();
-    void add_session_id(uint64 session_id);
-
-    Backoff backoff;
-    FloodControlStrict sanity_flood_control;
-    FloodControlStrict flood_control;
-    FloodControlStrict flood_control_online;
-    FloodControlStrict mtproto_error_flood_control;
-    Slot slot;
-    size_t pending_connections{0};
-    size_t checking_connections{0};
-    std::vector<std::pair<unique_ptr<mtproto::RawConnection>, double>> ready_connections;
-    std::vector<Promise<unique_ptr<mtproto::RawConnection>>> queries;
-
-    static constexpr double READY_CONNECTIONS_TIMEOUT = 10;
-
-    bool inited{false};
-    uint32 hash{0};
-    DcId dc_id;
-    bool allow_media_only{false};
-    bool is_media{false};
-    std::set<uint64> session_ids_;
-    unique_ptr<mtproto::AuthData> auth_data;
-    uint64 auth_data_generation{0};
-  };
-  std::map<uint32, ClientInfo> clients_;
-
-  std::shared_ptr<NetStatsCallback> media_net_stats_callback_;
-  std::shared_ptr<NetStatsCallback> common_net_stats_callback_;
-
-  ActorShared<ConnectionCreator> ref_cnt_guard_;
-  int ref_cnt_{0};
-  bool close_flag_{false};
-  uint64 current_token_ = 0;
-  std::map<uint64, std::pair<bool, ActorShared<>>> children_;
-
-  struct PingMainDcRequest {
-    Promise<double> promise;
-    size_t left_queries = 0;
-    Result<double> result;
-  };
-  std::map<uint64, PingMainDcRequest> ping_main_dc_requests_;
-
-  struct ConnectionData {
-    IPAddress ip_address;
-    BufferedFd<SocketFd> buffered_socket_fd;
-    mtproto::ConnectionManager::ConnectionToken connection_token;
-    unique_ptr<mtproto::RawConnection::StatsCallback> stats_callback;
-  };
-
-  struct TestProxyRequest {
-    Proxy proxy_;
-    int16 dc_id_;
-    ActorOwn<> child_;
-    Promise<Unit> promise_;
-
-    mtproto::TransportType get_transport() const {
-      return mtproto::TransportType{mtproto::TransportType::ObfuscatedTcp, dc_id_, proxy_.secret()};
-    }
-  };
-  uint64 test_proxy_request_id_ = 0;
-  FlatHashMap<uint64, unique_ptr<TestProxyRequest>> test_proxy_requests_;
-
-  uint64 next_token() {
-    return ++current_token_;
-  }
-
-  ActorShared<ConnectionCreator> create_reference(int64 token);
-
-  void set_active_proxy_id(int32 proxy_id, bool from_binlog = false);
-  void enable_proxy_impl(int32 proxy_id);
-  void disable_proxy_impl();
-  void on_proxy_changed(bool from_db);
-  static string get_proxy_database_key(int32 proxy_id);
-  static string get_proxy_used_database_key(int32 proxy_id);
-  void save_proxy_last_used_date(int32 delay);
-  td_api::object_ptr<td_api::proxy> get_proxy_object(int32 proxy_id) const;
-
-  void start_up() final;
-  void hangup_shared() final;
-  void hangup() final;
-  void loop() final;
-
-  void init_proxies();
-  void add_dc_options(DcOptions &&new_dc_options);
-  Result<SocketFd> do_request_connection(DcId dc_id, bool allow_media_only);
-  Result<std::pair<unique_ptr<mtproto::RawConnection>, bool>> do_request_raw_connection(DcId dc_id,
-                                                                                        bool allow_media_only,
-                                                                                        bool is_media, uint32 hash);
-
-  void on_network(bool network_flag, uint32 network_generation);
-  void on_online(bool online_flag);
-  void on_logging_out(bool is_logging_out);
-
-  static void update_mtproto_header(const Proxy &proxy);
-
-  void client_wakeup(uint32 hash);
-  void client_loop(ClientInfo &client);
-  void client_create_raw_connection(Result<ConnectionData> r_connection_data, bool check_mode,
-                                    mtproto::TransportType transport_type, uint32 hash, string debug_str,
-                                    uint32 network_generation);
-  void client_add_connection(uint32 hash, Result<unique_ptr<mtproto::RawConnection>> r_raw_connection, bool check_flag,
-                             uint64 auth_data_generation, uint64 session_id);
-  void client_set_timeout_at(ClientInfo &client, double wakeup_at);
-
-  void on_proxy_resolved(Result<IPAddress> ip_address, bool dummy);
-
-  struct FindConnectionExtra {
-    DcOptionsSet::Stat *stat{nullptr};
-    mtproto::TransportType transport_type;
-    string debug_str;
-    IPAddress ip_address;
-    IPAddress mtproto_ip_address;
-    bool check_mode{false};
-  };
-  Result<SocketFd> find_connection(const Proxy &proxy, const IPAddress &proxy_ip_address, DcId dc_id,
-                                   bool allow_media_only, FindConnectionExtra &extra);
-
-  static DcOptions get_default_dc_options(bool is_test);
-
-  static Result<mtproto::TransportType> get_transport_type(const Proxy &proxy,
-                                                           const DcOptionsSet::ConnectionInfo &info);
-
-  static ActorOwn<> prepare_connection(IPAddress ip_address, SocketFd socket_fd, const Proxy &proxy,
-                                       const IPAddress &mtproto_ip_address,
-                                       const mtproto::TransportType &transport_type, Slice actor_name_prefix,
-                                       Slice debug_str,
-                                       unique_ptr<mtproto::RawConnection::StatsCallback> stats_callback,
-                                       ActorShared<> parent, bool use_connection_token,
-                                       Promise<ConnectionData> promise);
-
-  ActorId<GetHostByNameActor> get_dns_resolver();
-
-  void ping_proxy_resolved(int32 proxy_id, IPAddress ip_address, Promise<double> promise);
-
-  void ping_proxy_buffered_socket_fd(IPAddress ip_address, BufferedFd<SocketFd> buffered_socket_fd,
-                                     mtproto::TransportType transport_type, string debug_str, Promise<double> promise);
-
-  void on_ping_main_dc_result(uint64 token, Result<double> result);
-
-  void on_test_proxy_connection_data(uint64 request_id, Result<ConnectionData> r_data);
-
-  void on_test_proxy_handshake_connection(uint64 request_id,
-                                          Result<unique_ptr<mtproto::RawConnection>> r_raw_connection);
-
-  void on_test_proxy_handshake(uint64 request_id, Result<unique_ptr<mtproto::AuthKeyHandshake>> r_handshake);
-
-  void on_test_proxy_timeout(uint64 request_id);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/DcAuthManager.cpp b/third-party/td/td/td/telegram/net/DcAuthManager.cpp
deleted file mode 100644
index d60e553e6f..0000000000
--- a/third-party/td/td/td/telegram/net/DcAuthManager.cpp
+++ /dev/null
@@ -1,250 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/DcAuthManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/AuthDataShared.h"
-#include "td/telegram/net/AuthKeyState.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UniqueId.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-
-#include <algorithm>
-#include <limits>
-
-namespace td {
-
-int VERBOSITY_NAME(dc) = VERBOSITY_NAME(DEBUG) + 2;
-
-DcAuthManager::DcAuthManager(ActorShared<> parent) {
-  parent_ = std::move(parent);
-  auto s_main_dc_id = G()->td_db()->get_binlog_pmc()->get("main_dc_id");
-  if (!s_main_dc_id.empty()) {
-    auto main_dc_id = to_integer<int32>(s_main_dc_id);
-    if (DcId::is_valid(main_dc_id)) {
-      main_dc_id_ = DcId::internal(main_dc_id);
-      VLOG(dc) << "Init main DcId to " << main_dc_id_;
-    } else {
-      LOG(ERROR) << "Receive invalid main DcId " << main_dc_id;
-    }
-  }
-}
-
-void DcAuthManager::add_dc(std::shared_ptr<AuthDataShared> auth_data) {
-  VLOG(dc) << "Register " << auth_data->dc_id();
-  class Listener final : public AuthDataShared::Listener {
-   public:
-    explicit Listener(ActorShared<DcAuthManager> dc_manager) : dc_manager_(std::move(dc_manager)) {
-    }
-    bool notify() final {
-      if (!dc_manager_.is_alive()) {
-        return false;
-      }
-      send_closure(dc_manager_, &DcAuthManager::update_auth_key_state);
-      return true;
-    }
-
-   private:
-    ActorShared<DcAuthManager> dc_manager_;
-  };
-
-  DcInfo info;
-  info.dc_id = auth_data->dc_id();
-  CHECK(info.dc_id.is_exact());
-  info.shared_auth_data = std::move(auth_data);
-  info.auth_key_state = get_auth_key_state(info.shared_auth_data->get_auth_key());
-  VLOG(dc) << "Add " << info.dc_id << " with auth key state " << info.auth_key_state;
-  if (!main_dc_id_.is_exact()) {
-    main_dc_id_ = info.dc_id;
-    VLOG(dc) << "Set main DcId to " << main_dc_id_;
-  }
-  info.shared_auth_data->add_auth_key_listener(make_unique<Listener>(actor_shared(this, info.dc_id.get_raw_id())));
-  dcs_.emplace_back(std::move(info));
-  loop();
-}
-
-void DcAuthManager::update_main_dc(DcId new_main_dc_id) {
-  main_dc_id_ = new_main_dc_id;
-  VLOG(dc) << "Update main DcId to " << main_dc_id_;
-  loop();
-}
-
-DcAuthManager::DcInfo &DcAuthManager::get_dc(int32 dc_id) {
-  auto *dc = find_dc(dc_id);
-  CHECK(dc);
-  return *dc;
-}
-DcAuthManager::DcInfo *DcAuthManager::find_dc(int32 dc_id) {
-  auto it = std::find_if(dcs_.begin(), dcs_.end(), [&](auto &x) { return x.dc_id.get_raw_id() == dc_id; });
-  if (it == dcs_.end()) {
-    return nullptr;
-  }
-  return &*it;
-}
-
-void DcAuthManager::update_auth_key_state() {
-  auto dc_id = narrow_cast<int32>(get_link_token());
-  auto &dc = get_dc(dc_id);
-  auto old_auth_key_state = dc.auth_key_state;
-  dc.auth_key_state = get_auth_key_state(dc.shared_auth_data->get_auth_key());
-  VLOG(dc) << "Update DcId{" << dc_id << "} auth key state from " << old_auth_key_state << " to " << dc.auth_key_state;
-
-  loop();
-}
-
-void DcAuthManager::on_result(NetQueryPtr net_query) {
-  auto dc_id = narrow_cast<int32>(get_link_token());
-  auto &dc = get_dc(dc_id);
-  CHECK(dc.wait_id == net_query->id());
-  dc.wait_id = std::numeric_limits<decltype(dc.wait_id)>::max();
-  switch (dc.state) {
-    case DcInfo::State::Import: {
-      auto r_result_auth_exported = fetch_result<telegram_api::auth_exportAuthorization>(std::move(net_query));
-      if (r_result_auth_exported.is_error()) {
-        if (!G()->is_expected_error(r_result_auth_exported.error())) {
-          LOG(WARNING) << "Receive error for auth.exportAuthorization: " << r_result_auth_exported.error();
-        }
-        dc.state = DcInfo::State::Export;
-        break;
-      }
-      auto result_auth_exported = r_result_auth_exported.move_as_ok();
-      dc.export_id = result_auth_exported->id_;
-      dc.export_bytes = std::move(result_auth_exported->bytes_);
-      break;
-    }
-    case DcInfo::State::BeforeOk: {
-      auto result_auth = fetch_result<telegram_api::auth_importAuthorization>(std::move(net_query));
-      if (result_auth.is_error()) {
-        if (!G()->is_expected_error(result_auth.error())) {
-          LOG(WARNING) << "Receive error for auth.importAuthorization: " << result_auth.error();
-        }
-        dc.state = DcInfo::State::Export;
-        break;
-      }
-      dc.state = DcInfo::State::Ok;
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  loop();
-}
-
-void DcAuthManager::dc_loop(DcInfo &dc) {
-  VLOG(dc) << "In dc_loop: " << dc.dc_id << " " << dc.auth_key_state;
-  if (dc.auth_key_state == AuthKeyState::OK) {
-    return;
-  }
-  if (dc.state == DcInfo::State::Ok) {
-    LOG(WARNING) << "Lost key in " << dc.dc_id << ", restart dc_loop";
-    dc.state = DcInfo::State::Waiting;
-  }
-  CHECK(dc.shared_auth_data);
-  switch (dc.state) {
-    case DcInfo::State::Waiting: {
-      // wait for timeout
-      // break;
-    }
-    case DcInfo::State::Export: {
-      // send auth.exportAuthorization to auth_dc
-      VLOG(dc) << "Send exportAuthorization to " << dc.dc_id;
-      auto id = UniqueId::next();
-      auto query =
-          G()->net_query_creator().create(id, nullptr, telegram_api::auth_exportAuthorization(dc.dc_id.get_raw_id()),
-                                          {}, DcId::main(), NetQuery::Type::Common, NetQuery::AuthFlag::On);
-      query->total_timeout_limit_ = 60 * 60 * 24;
-      G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, dc.dc_id.get_raw_id()));
-      dc.wait_id = id;
-      dc.export_id = -1;
-      dc.state = DcInfo::State::Import;
-      break;
-    }
-    case DcInfo::State::Import: {
-      // send auth.importAuthorization to dc
-      if (dc.export_id == -1) {
-        break;
-      }
-      uint64 id = UniqueId::next();
-      VLOG(dc) << "Send importAuthorization to " << dc.dc_id;
-      auto query = G()->net_query_creator().create(
-          id, nullptr, telegram_api::auth_importAuthorization(dc.export_id, std::move(dc.export_bytes)), {}, dc.dc_id,
-          NetQuery::Type::Common, NetQuery::AuthFlag::Off);
-      query->total_timeout_limit_ = 60 * 60 * 24;
-      G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, dc.dc_id.get_raw_id()));
-      dc.wait_id = id;
-      dc.state = DcInfo::State::BeforeOk;
-      break;
-    }
-    case DcInfo::State::BeforeOk:
-      break;
-    case DcInfo::State::Ok:
-      break;
-  }
-}
-
-void DcAuthManager::destroy(Promise<Unit> promise) {
-  need_destroy_auth_key_ = true;
-  destroy_promise_ = std::move(promise);
-  loop();
-}
-
-void DcAuthManager::destroy_loop() {
-  if (!need_destroy_auth_key_) {
-    return;
-  }
-  bool is_ready = true;
-  for (auto &dc : dcs_) {
-    if (dc.auth_key_state != AuthKeyState::Empty) {
-      is_ready = false;
-      VLOG(dc) << "Auth key in " << dc.dc_id << " in state " << dc.auth_key_state << " must be destroyed";
-    }
-  }
-
-  if (is_ready) {
-    VLOG(dc) << "All keys were destroyed";
-    destroy_promise_.set_value(Unit());
-    need_destroy_auth_key_ = false;
-  }
-}
-
-void DcAuthManager::loop() {
-  if (close_flag_) {
-    VLOG(dc) << "Skip loop because close_flag";
-    return;
-  }
-  destroy_loop();
-  if (!main_dc_id_.is_exact()) {
-    VLOG(dc) << "Skip loop because main_dc_id is unknown";
-    return;
-  }
-  auto main_dc = find_dc(main_dc_id_.get_raw_id());
-  if (!main_dc || main_dc->auth_key_state != AuthKeyState::OK) {
-    if (main_dc && need_check_authorization_is_ok_) {
-      G()->log_out("Authorization check failed in DcAuthManager");
-    }
-    VLOG(dc) << "Skip loop, because main DC is " << main_dc_id_ << ", main auth key state is "
-             << (main_dc != nullptr ? main_dc->auth_key_state : AuthKeyState::Empty);
-    return;
-  }
-  need_check_authorization_is_ok_ = false;
-  for (auto &dc : dcs_) {
-    dc_loop(dc);
-  }
-}
-
-void DcAuthManager::check_authorization_is_ok() {
-  need_check_authorization_is_ok_ = true;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/DcAuthManager.h b/third-party/td/td/td/telegram/net/DcAuthManager.h
deleted file mode 100644
index 2f57cf4052..0000000000
--- a/third-party/td/td/td/telegram/net/DcAuthManager.h
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/AuthDataShared.h"
-#include "td/telegram/net/AuthKeyState.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-
-#include <memory>
-
-namespace td {
-
-extern int VERBOSITY_NAME(dc);
-
-class DcAuthManager final : public NetQueryCallback {
- public:
-  explicit DcAuthManager(ActorShared<> parent);
-
-  void add_dc(std::shared_ptr<AuthDataShared> auth_data);
-  void update_main_dc(DcId new_main_dc_id);
-  void destroy(Promise<> promise);
-
-  void check_authorization_is_ok();
-
- private:
-  struct DcInfo {
-    DcId dc_id;
-    std::shared_ptr<AuthDataShared> shared_auth_data;
-    AuthKeyState auth_key_state;
-
-    enum class State : int32 { Waiting, Export, Import, BeforeOk, Ok };
-    State state = State::Waiting;
-    uint64 wait_id = 0;
-    int64 export_id = 0;
-    BufferSlice export_bytes;
-  };
-
-  ActorShared<> parent_;
-
-  std::vector<DcInfo> dcs_;
-  DcId main_dc_id_;
-  bool need_check_authorization_is_ok_{false};
-  bool close_flag_{false};
-  bool need_destroy_auth_key_{false};
-  Promise<Unit> destroy_promise_;
-
-  DcInfo &get_dc(int32 dc_id);
-  DcInfo *find_dc(int32 dc_id);
-
-  void update_auth_key_state();
-
-  void on_result(NetQueryPtr net_query) final;
-  void dc_loop(DcInfo &dc);
-
-  void destroy_loop();
-  void loop() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/DcId.h b/third-party/td/td/td/telegram/net/DcId.h
deleted file mode 100644
index afb00eb79d..0000000000
--- a/third-party/td/td/td/telegram/net/DcId.h
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-#include <tuple>
-
-namespace td {
-
-class DcId {
- public:
-  DcId() = default;
-
-  static constexpr int32 MAX_RAW_DC_ID = 1000;
-
-  static bool is_valid(int32 dc_id) {
-    return 1 <= dc_id && dc_id <= MAX_RAW_DC_ID;
-  }
-  static DcId main() {
-    return DcId{MainDc, false};
-  }
-  static DcId invalid() {
-    return DcId{Invalid, false};
-  }
-  static DcId internal(int32 id) {
-    CHECK(is_valid(id));
-    return DcId{id, false};
-  }
-  static DcId external(int32 id) {
-    CHECK(is_valid(id));
-    return DcId{id, true};
-  }
-  static DcId empty() {
-    return {};
-  }
-  static DcId from_value(int32 value) {
-    return DcId{value, false};
-  }
-  static DcId create(int32 dc_id_value) {
-    if (DcId::is_valid(dc_id_value)) {
-      return DcId(dc_id_value, false);
-    } else {
-      return DcId::invalid();
-    }
-  }
-
-  bool is_empty() const {
-    return !is_valid();
-  }
-  bool is_main() const {
-    return dc_id_ == MainDc;
-  }
-  int32 get_raw_id() const {
-    CHECK(is_exact());
-    return dc_id_;
-  }
-  int32 get_value() const {
-    return dc_id_;
-  }
-  bool is_internal() const {
-    return !is_external();
-  }
-  bool is_external() const {
-    return is_external_;
-  }
-  bool is_exact() const {
-    return dc_id_ > 0;
-  }
-  bool operator==(DcId other) const {
-    return dc_id_ == other.dc_id_ && is_external_ == other.is_external_;
-  }
-  bool operator<(DcId other) const {
-    return std::tie(dc_id_, is_external_) < std::tie(other.dc_id_, other.is_external_);
-  }
-  bool operator!=(DcId other) const {
-    return !(*this == other);
-  }
-
- private:
-  enum : int32 { Empty = 0, MainDc = -1, Invalid = -2 };
-  int32 dc_id_{Empty};
-  bool is_external_{false};
-
-  DcId(int32 dc_id, bool is_external) : dc_id_(dc_id), is_external_(is_external) {
-  }
-
-  bool is_valid() const {
-    return is_exact() || is_main();
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const DcId &dc_id) {
-  sb << "DcId{";
-  if (dc_id == DcId::invalid()) {
-    sb << "invalid";
-  } else if (dc_id == DcId()) {
-    sb << "empty";
-  } else if (dc_id.is_empty()) {
-    sb << "is_empty";
-  } else if (dc_id.is_main()) {
-    sb << "main";
-  } else {
-    sb << dc_id.get_raw_id();
-    if (dc_id.is_external()) {
-      sb << " external";
-    }
-  }
-  sb << "}";
-  return sb;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/DcOptions.h b/third-party/td/td/td/telegram/net/DcOptions.h
deleted file mode 100644
index 3949a8e2a2..0000000000
--- a/third-party/td/td/td/telegram/net/DcOptions.h
+++ /dev/null
@@ -1,252 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/mtproto/ProxySecret.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-class DcOption {
-  // do not forget to update PrintFlags
-  enum Flags : int32 { IPv6 = 1, MediaOnly = 2, ObfuscatedTcpOnly = 4, Cdn = 8, Static = 16, HasSecret = 32 };
-
-  int32 flags_ = 0;
-  DcId dc_id_;
-  IPAddress ip_address_;
-  mtproto::ProxySecret secret_;
-
-  struct PrintFlags {
-    int32 flags;
-  };
-
- public:
-  DcOption() = default;
-
-  DcOption(DcId dc_id, const IPAddress &ip_address)
-      : flags_(ip_address.is_ipv4() ? 0 : IPv6), dc_id_(dc_id), ip_address_(ip_address) {
-  }
-
-  explicit DcOption(const telegram_api::dcOption &option) {
-    auto ip = option.ip_address_;
-    auto port = option.port_;
-    flags_ = 0;
-    if (!DcId::is_valid(option.id_)) {
-      dc_id_ = DcId::invalid();
-      return;
-    }
-
-    if (option.cdn_) {
-      dc_id_ = DcId::external(option.id_);
-      flags_ |= Flags::Cdn;
-    } else {
-      dc_id_ = DcId::internal(option.id_);
-    }
-    if (option.ipv6_) {
-      flags_ |= Flags::IPv6;
-    }
-    if (option.media_only_) {
-      flags_ |= Flags::MediaOnly;
-    }
-    if (option.tcpo_only_) {
-      flags_ |= Flags::ObfuscatedTcpOnly;
-    }
-    if (option.static_) {
-      flags_ |= Flags::Static;
-    }
-    if (!option.secret_.empty()) {
-      flags_ |= Flags::HasSecret;
-      auto r_secret = mtproto::ProxySecret::from_binary(option.secret_.as_slice());
-      if (r_secret.is_error()) {
-        return;
-      }
-      secret_ = r_secret.move_as_ok();
-    }
-    init_ip_address(ip, port);
-  }
-
-  DcOption(DcId new_dc_id, const telegram_api::IpPort &ip_port_ref) {
-    switch (ip_port_ref.get_id()) {
-      case telegram_api::ipPort::ID: {
-        auto &ip_port = static_cast<const telegram_api::ipPort &>(ip_port_ref);
-        init_ip_address(IPAddress::ipv4_to_str(static_cast<uint32>(ip_port.ipv4_)), ip_port.port_);
-        break;
-      }
-      case telegram_api::ipPortSecret::ID: {
-        auto &ip_port = static_cast<const telegram_api::ipPortSecret &>(ip_port_ref);
-        auto r_secret = mtproto::ProxySecret::from_binary(ip_port.secret_.as_slice());
-        if (r_secret.is_error()) {
-          return;
-        }
-        flags_ |= Flags::HasSecret;
-        secret_ = r_secret.move_as_ok();
-        init_ip_address(IPAddress::ipv4_to_str(static_cast<uint32>(ip_port.ipv4_)), ip_port.port_);
-        break;
-      }
-      default:
-        UNREACHABLE();
-    }
-    flags_ |= Flags::ObfuscatedTcpOnly;
-    dc_id_ = new_dc_id;
-  }
-
-  DcId get_dc_id() const {
-    return dc_id_;
-  }
-
-  const IPAddress &get_ip_address() const {
-    return ip_address_;
-  }
-
-  bool is_ipv6() const {
-    return (flags_ & Flags::IPv6) != 0;
-  }
-
-  bool is_media_only() const {
-    return (flags_ & Flags::MediaOnly) != 0;
-  }
-
-  bool is_obfuscated_tcp_only() const {
-    return (flags_ & Flags::ObfuscatedTcpOnly) != 0;
-  }
-
-  bool is_static() const {
-    return (flags_ & Flags::Static) != 0;
-  }
-
-  bool is_valid() const {
-    return ip_address_.is_valid() && dc_id_.is_exact();
-  }
-
-  const mtproto::ProxySecret &get_secret() const {
-    return secret_;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    storer.store_int(flags_);
-    storer.store_int(dc_id_.get_raw_id());
-    CHECK(ip_address_.is_valid());
-    storer.store_string(ip_address_.get_ip_str());
-    storer.store_int(ip_address_.get_port());
-    if ((flags_ & Flags::HasSecret) != 0) {
-      td::store(secret_.get_raw_secret(), storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    flags_ = parser.fetch_int();
-    auto raw_dc_id = parser.fetch_int();
-    if (!DcId::is_valid(raw_dc_id)) {
-      LOG(ERROR) << "Have invalid DC ID " << raw_dc_id;
-      dc_id_ = DcId::invalid();
-    } else {
-      if ((flags_ & Flags::Cdn) != 0) {
-        dc_id_ = DcId::external(raw_dc_id);
-      } else {
-        dc_id_ = DcId::internal(raw_dc_id);
-      }
-    }
-    auto ip = parser.template fetch_string<std::string>();
-    auto port = parser.fetch_int();
-    init_ip_address(ip, port);
-    if ((flags_ & Flags::HasSecret) != 0) {
-      secret_ = mtproto::ProxySecret::from_raw(parser.template fetch_string<Slice>());
-    }
-  }
-
-  friend bool operator==(const DcOption &lhs, const DcOption &rhs);
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const PrintFlags &flags);
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const DcOption &dc_option);
-
- private:
-  void init_ip_address(CSlice ip, int32 port) {
-    if (is_ipv6()) {
-      ip_address_.init_ipv6_port(ip, port).ignore();
-    } else {
-      ip_address_.init_ipv4_port(ip, port).ignore();
-    }
-  }
-};
-
-inline bool operator==(const DcOption &lhs, const DcOption &rhs) {
-  return lhs.dc_id_ == rhs.dc_id_ && lhs.ip_address_ == rhs.ip_address_ && lhs.flags_ == rhs.flags_ &&
-         lhs.secret_ == rhs.secret_;
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const DcOption::PrintFlags &flags) {
-  if ((flags.flags & DcOption::Flags::ObfuscatedTcpOnly) != 0) {
-    sb << "(ObfuscatedTcpOnly)";
-  }
-  if ((flags.flags & DcOption::Flags::MediaOnly) != 0) {
-    sb << "(MediaOnly)";
-  }
-  if ((flags.flags & DcOption::Flags::IPv6) != 0) {
-    sb << "(IPv6)";
-  }
-  if ((flags.flags & DcOption::Flags::Cdn) != 0) {
-    sb << "(Cdn)";
-  }
-  if ((flags.flags & DcOption::Flags::Static) != 0) {
-    sb << "(Static)";
-  }
-  if ((flags.flags & DcOption::Flags::HasSecret) != 0) {
-    sb << "(HasSecret)";
-  }
-  return sb;
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const DcOption &dc_option) {
-  return sb << tag("DcOption", format::concat(dc_option.dc_id_, tag("ip", dc_option.ip_address_.get_ip_str()),
-                                              tag("port", dc_option.ip_address_.get_port()),
-                                              tag("secret_len", dc_option.get_secret().get_raw_secret().size()),
-                                              tag("flags", DcOption::PrintFlags{dc_option.flags_})));
-}
-
-class DcOptions {
- public:
-  DcOptions() = default;
-  explicit DcOptions(const std::vector<tl_object_ptr<telegram_api::dcOption>> &server_dc_options) {
-    for (auto &dc_option : server_dc_options) {
-      DcOption option(*dc_option);
-      if (option.is_valid()) {
-        dc_options.push_back(std::move(option));
-      }
-    }
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    ::td::store(dc_options, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    ::td::parse(dc_options, parser);
-  }
-
-  std::vector<DcOption> dc_options;
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const DcOptions &dc_options) {
-  return sb << "DcOptions" << dc_options.dc_options;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/DcOptionsSet.cpp b/third-party/td/td/td/telegram/net/DcOptionsSet.cpp
deleted file mode 100644
index f31914762f..0000000000
--- a/third-party/td/td/td/telegram/net/DcOptionsSet.cpp
+++ /dev/null
@@ -1,206 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/DcOptionsSet.h"
-
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/Global.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <algorithm>
-#include <set>
-#include <utility>
-
-namespace td {
-
-void DcOptionsSet::add_dc_options(DcOptions dc_options) {
-  vector<DcOptionId> new_ordered_options;
-  for (auto &option : dc_options.dc_options) {
-    auto *info = register_dc_option(std::move(option));
-    new_ordered_options.push_back(DcOptionId{info->pos});
-  }
-
-  std::set<DcOptionId> new_ordered_options_set(new_ordered_options.begin(), new_ordered_options.end());
-  for (auto option_id : ordered_options_) {
-    if (!new_ordered_options_set.count(option_id)) {
-      new_ordered_options.push_back(option_id);
-    }
-  }
-
-  ordered_options_ = std::move(new_ordered_options);
-  for (size_t i = 0; i < ordered_options_.size(); i++) {
-    options_[ordered_options_[i].pos]->order = i;
-  }
-}
-
-DcOptions DcOptionsSet::get_dc_options() const {
-  DcOptions result;
-  for (auto id : ordered_options_) {
-    result.dc_options.push_back(options_[id.pos]->option);
-  }
-  return result;
-}
-
-vector<DcOptionsSet::ConnectionInfo> DcOptionsSet::find_all_connections(DcId dc_id, bool allow_media_only,
-                                                                        bool use_static, bool prefer_ipv6,
-                                                                        bool only_http) {
-  LOG(DEBUG) << "Find all " << (allow_media_only ? "media " : "") << "connections in " << dc_id
-             << ". use_static = " << use_static << ", prefer_ipv6 = " << prefer_ipv6 << ", only_http = " << only_http;
-  vector<ConnectionInfo> options;
-  vector<ConnectionInfo> static_options;
-
-  if (prefer_ipv6) {
-    use_static = false;
-  }
-
-  for (auto &option_info : options_) {
-    auto &option = option_info->option;
-    if (option.get_dc_id() != dc_id) {
-      continue;
-    }
-    if (!option.is_valid()) {
-      LOG(INFO) << "Skip invalid DC option";
-      continue;
-    }
-    if (!allow_media_only && option.is_media_only()) {
-      LOG(DEBUG) << "Skip media only option";
-      continue;
-    }
-
-    ConnectionInfo info;
-    info.option = &option;
-    info.order = option_info->order;
-
-    OptionStat *option_stat = get_option_stat(option_info.get());
-
-    if (!only_http) {
-      info.use_http = false;
-      info.stat = &option_stat->tcp_stat;
-      if (option.is_static()) {
-        static_options.push_back(info);
-      } else {
-        options.push_back(info);
-      }
-    }
-
-    if (only_http) {
-#if TD_DARWIN_WATCH_OS
-      bool allow_ipv6 = true;
-#else
-      bool allow_ipv6 = prefer_ipv6;
-#endif
-      if (!option.is_obfuscated_tcp_only() && !option.is_static() && (allow_ipv6 || !option.is_ipv6())) {
-        info.use_http = true;
-        info.stat = &option_stat->http_stat;
-        options.push_back(info);
-      }
-    }
-  }
-
-  if (use_static) {
-    if (!static_options.empty()) {
-      options = std::move(static_options);
-    } else {
-      bool have_ipv4 = any_of(options, [](const auto &v) { return !v.option->is_ipv6(); });
-      if (have_ipv4) {
-        td::remove_if(options, [](auto &v) { return v.option->is_ipv6(); });
-      }
-    }
-  } else {
-    if (options.empty()) {
-      options = std::move(static_options);
-    }
-  }
-
-  if (prefer_ipv6) {
-    bool have_ipv6 = any_of(options, [](const auto &v) { return v.option->is_ipv6(); });
-    if (have_ipv6) {
-      td::remove_if(options, [](auto &v) { return !v.option->is_ipv6(); });
-    }
-  }
-
-  bool have_media_only = any_of(options, [](const auto &v) { return v.option->is_media_only(); });
-  if (have_media_only) {
-    td::remove_if(options, [](auto &v) { return !v.option->is_media_only(); });
-  }
-
-  return options;
-}
-
-Result<DcOptionsSet::ConnectionInfo> DcOptionsSet::find_connection(DcId dc_id, bool allow_media_only, bool use_static,
-                                                                   bool prefer_ipv6, bool only_http) {
-  auto options = find_all_connections(dc_id, allow_media_only, use_static, prefer_ipv6, only_http);
-
-  if (options.empty()) {
-    send_closure(G()->config_manager(), &ConfigManager::lazy_request_config);
-    return Status::Error(PSLICE() << "No such connection: " << tag("dc_id", dc_id)
-                                  << tag("allow_media_only", allow_media_only) << tag("use_static", use_static)
-                                  << tag("prefer_ipv6", prefer_ipv6));
-  }
-
-  auto last_error_at = std::min_element(options.begin(), options.end(), [](const auto &a_option, const auto &b_option) {
-                         return a_option.stat->error_at > b_option.stat->error_at;
-                       })->stat->error_at;
-
-  auto result = *std::min_element(options.begin(), options.end(), [](const auto &a_option, const auto &b_option) {
-    auto &a = *a_option.stat;
-    auto &b = *b_option.stat;
-    auto a_state = a.state();
-    auto b_state = b.state();
-    if (a_state != b_state) {
-      return a_state < b_state;
-    }
-    if (a_state == Stat::State::Ok) {
-      if (a_option.order == b_option.order) {
-        return a_option.use_http < b_option.use_http;
-      }
-      return a_option.order < b_option.order;
-    } else if (a_state == Stat::State::Error) {
-      return a.error_at < b.error_at;
-    }
-    return a_option.order < b_option.order;
-  });
-  result.should_check = !result.stat->is_ok() || result.use_http || last_error_at > Time::now_cached() - 10;
-  return result;
-}
-
-void DcOptionsSet::reset() {
-  options_.clear();
-  ordered_options_.clear();
-}
-
-DcOptionsSet::DcOptionInfo *DcOptionsSet::register_dc_option(DcOption &&option) {
-  auto info = make_unique<DcOptionInfo>(std::move(option), options_.size());
-  init_option_stat(info.get());
-  auto result = info.get();
-  options_.push_back(std::move(info));
-  return result;
-}
-
-void DcOptionsSet::init_option_stat(DcOptionInfo *option_info) {
-  const auto &ip_address = option_info->option.get_ip_address();
-  for (size_t i = 0; i < option_stats_.size(); i++) {
-    if (option_stats_[i].first == ip_address) {
-      option_info->stat_id = i;
-      return;
-    }
-  }
-  option_stats_.emplace_back(ip_address, make_unique<OptionStat>());
-  option_info->stat_id = option_stats_.size() - 1;
-}
-
-DcOptionsSet::OptionStat *DcOptionsSet::get_option_stat(const DcOptionInfo *option_info) {
-  CHECK(option_info->stat_id < option_stats_.size());
-  return option_stats_[option_info->stat_id].second.get();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/DcOptionsSet.h b/third-party/td/td/td/telegram/net/DcOptionsSet.h
deleted file mode 100644
index bee31821ce..0000000000
--- a/third-party/td/td/td/telegram/net/DcOptionsSet.h
+++ /dev/null
@@ -1,115 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/DcOptions.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <utility>
-
-namespace td {
-
-class DcOptionsSet {
- public:
-  void add_dc_options(DcOptions dc_options);
-
-  DcOptions get_dc_options() const;
-
-  struct Stat {
-    double ok_at{-1000};
-    double error_at{-1001};
-    double check_at{-1002};
-    enum class State : int32 { Ok, Error, Checking };
-
-    void on_ok() {
-      ok_at = Time::now_cached();
-    }
-    void on_error() {
-      error_at = Time::now_cached();
-    }
-    void on_check() {
-      check_at = Time::now_cached();
-    }
-    bool is_ok() const {
-      return state() == State::Ok;
-    }
-    State state() const {
-      if (ok_at > error_at && ok_at > check_at) {
-        return State::Ok;
-      }
-      if (check_at > ok_at && check_at > error_at) {
-        return State::Checking;
-      }
-      return State::Error;
-    }
-  };
-
-  struct ConnectionInfo {
-    DcOption *option{nullptr};
-    bool use_http{false};
-    size_t order{0};
-    bool should_check{false};
-    Stat *stat{nullptr};
-  };
-
-  vector<ConnectionInfo> find_all_connections(DcId dc_id, bool allow_media_only, bool use_static, bool prefer_ipv6,
-                                              bool only_http);
-
-  Result<ConnectionInfo> find_connection(DcId dc_id, bool allow_media_only, bool use_static, bool prefer_ipv6,
-                                         bool only_http);
-  void reset();
-
- private:
-  enum class State : int32 { Error, Ok, Checking };
-
-  struct OptionStat {
-    Stat tcp_stat;
-    Stat http_stat;
-  };
-
-  struct DcOptionInfo {
-    DcOption option;
-    size_t stat_id = static_cast<size_t>(-1);
-    size_t pos = 0;
-    size_t order = 0;
-
-    DcOptionInfo(DcOption &&option, size_t pos) : option(std::move(option)), pos(pos) {
-    }
-  };
-
-  struct DcOptionId {
-    size_t pos = 0;
-
-    explicit constexpr DcOptionId(size_t pos) : pos(pos) {
-    }
-
-    size_t as_tie() const {
-      return pos;
-    }
-    bool operator==(const DcOptionId &other) const {
-      return as_tie() == other.as_tie();
-    }
-    bool operator<(const DcOptionId &other) const {
-      return as_tie() < other.as_tie();
-    }
-  };
-
-  vector<unique_ptr<DcOptionInfo>> options_;
-  vector<DcOptionId> ordered_options_;
-  vector<std::pair<IPAddress, unique_ptr<OptionStat>>> option_stats_;
-
-  DcOptionInfo *register_dc_option(DcOption &&option);
-  void init_option_stat(DcOptionInfo *option_info);
-  OptionStat *get_option_stat(const DcOptionInfo *option_info);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/MtprotoHeader.cpp b/third-party/td/td/td/telegram/net/MtprotoHeader.cpp
deleted file mode 100644
index c7948794a1..0000000000
--- a/third-party/td/td/td/telegram/net/MtprotoHeader.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/MtprotoHeader.h"
-
-#include "td/telegram/JsonValue.h"
-#include "td/telegram/LanguagePackManager.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/Version.h"
-
-#include "td/tl/tl_object_store.h"
-
-#include "td/utils/Slice.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-namespace {
-
-class HeaderStorer {
- public:
-  HeaderStorer(const MtprotoHeader::Options &options, bool is_anonymous)
-      : options(options), is_anonymous(is_anonymous) {
-  }
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    // invokeWithLayer
-    store(static_cast<int32>(0xda9b0d0d), storer);
-    store(MTPROTO_LAYER, storer);
-    // initConnection
-    store(static_cast<int32>(0xc1cd5ea9), storer);
-    int32 flags = 0;
-    bool have_proxy = !is_anonymous && options.proxy.type() == Proxy::Type::Mtproto;
-    if (have_proxy) {
-      flags |= 1 << 0;
-    }
-    if (!is_anonymous) {
-      flags |= 1 << 1;
-    }
-    if (options.is_emulator) {
-      flags |= 1 << 10;
-    }
-    store(flags, storer);
-    store(options.api_id, storer);
-    if (is_anonymous) {
-      store(Slice("n/a"), storer);
-      store(Slice("n/a"), storer);
-    } else {
-      store(options.device_model, storer);
-      store(options.system_version, storer);
-    }
-    store(options.application_version, storer);
-    store(options.system_language_code, storer);
-    if (is_anonymous || options.language_pack.empty() ||
-        LanguagePackManager::is_custom_language_code(options.language_code)) {
-      store(Slice(), storer);
-      store(Slice(), storer);
-    } else {
-      store(options.language_pack, storer);
-      if (options.language_code.empty()) {
-        store(Slice("en"), storer);
-      } else {
-        store(options.language_code, storer);
-      }
-    }
-    if (have_proxy) {
-      // inputClientProxy
-      store(static_cast<int32>(0x75588b3f), storer);
-      store(Slice(options.proxy.server()), storer);
-      store(options.proxy.port(), storer);
-    }
-    if (!is_anonymous) {
-      telegram_api::object_ptr<telegram_api::JSONValue> json_value;
-      if (options.parameters.empty()) {
-        json_value = make_tl_object<telegram_api::jsonObject>(vector<tl_object_ptr<telegram_api::jsonObjectValue>>());
-      } else {
-        auto parameters_copy = options.parameters;
-        json_value = get_input_json_value(parameters_copy).move_as_ok();
-      }
-      CHECK(json_value != nullptr);
-      if (json_value->get_id() == telegram_api::jsonObject::ID) {
-        auto &values = static_cast<telegram_api::jsonObject *>(json_value.get())->value_;
-        bool has_tz_offset = false;
-        for (auto &value : values) {
-          if (value->key_ == "tz_offset") {
-            has_tz_offset = true;
-            value->value_ = make_tl_object<telegram_api::jsonNumber>(options.tz_offset);
-          }
-        }
-        if (!has_tz_offset) {
-          values.push_back(make_tl_object<telegram_api::jsonObjectValue>(
-              "tz_offset", make_tl_object<telegram_api::jsonNumber>(options.tz_offset)));
-        }
-      }
-      TlStoreBoxedUnknown<TlStoreObject>::store(json_value, storer);
-    }
-  }
-
- private:
-  const MtprotoHeader::Options &options;
-  bool is_anonymous;
-};
-
-}  // namespace
-
-string MtprotoHeader::gen_header(const MtprotoHeader::Options &options, bool is_anonymous) {
-  HeaderStorer storer(options, is_anonymous);
-  return serialize(storer);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/MtprotoHeader.h b/third-party/td/td/td/telegram/net/MtprotoHeader.h
deleted file mode 100644
index 6e4a34393e..0000000000
--- a/third-party/td/td/td/telegram/net/MtprotoHeader.h
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/Proxy.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/RwMutex.h"
-
-namespace td {
-
-class MtprotoHeader {
- public:
-  struct Options {
-    int32 api_id = -1;
-    string system_language_code;
-    string device_model;
-    string system_version;
-    string application_version;
-    string language_pack;
-    string language_code;
-    string parameters;
-    int32 tz_offset = 0;
-    bool is_emulator = false;
-    Proxy proxy;
-  };
-
-  explicit MtprotoHeader(const Options &options) : options_(options) {
-    default_header_ = gen_header(options_, false);
-    anonymous_header_ = gen_header(options_, true);
-  }
-
-  void set_proxy(Proxy proxy) {
-    auto lock = rw_mutex_.lock_write();
-    options_.proxy = std::move(proxy);
-    default_header_ = gen_header(options_, false);
-  }
-
-  bool set_parameters(string parameters) {
-    auto lock = rw_mutex_.lock_write();
-    if (options_.parameters == parameters) {
-      return false;
-    }
-
-    options_.parameters = std::move(parameters);
-    default_header_ = gen_header(options_, false);
-    return true;
-  }
-
-  bool set_is_emulator(bool is_emulator) {
-    auto lock = rw_mutex_.lock_write();
-    if (options_.is_emulator == is_emulator) {
-      return false;
-    }
-
-    options_.is_emulator = is_emulator;
-    default_header_ = gen_header(options_, false);
-    return true;
-  }
-
-  bool set_language_pack(string language_pack) {
-    auto lock = rw_mutex_.lock_write();
-    if (options_.language_pack == language_pack) {
-      return false;
-    }
-
-    options_.language_pack = std::move(language_pack);
-    default_header_ = gen_header(options_, false);
-    return true;
-  }
-
-  bool set_language_code(string language_code) {
-    auto lock = rw_mutex_.lock_write();
-    if (options_.language_code == language_code) {
-      return false;
-    }
-
-    options_.language_code = std::move(language_code);
-    default_header_ = gen_header(options_, false);
-    return true;
-  }
-
-  bool set_tz_offset(int32 tz_offset) {
-    auto lock = rw_mutex_.lock_write();
-    if (options_.tz_offset == tz_offset) {
-      return false;
-    }
-
-    options_.tz_offset = tz_offset;
-    default_header_ = gen_header(options_, false);
-    return true;
-  }
-
-  string get_default_header() const {
-    auto lock = rw_mutex_.lock_read();
-    return default_header_;
-  }
-
-  string get_anonymous_header() const {
-    auto lock = rw_mutex_.lock_read();
-    return anonymous_header_;
-  }
-
-  string get_system_language_code() const {
-    auto lock = rw_mutex_.lock_read();
-    return options_.system_language_code;
-  }
-
- private:
-  Options options_;
-  string default_header_;
-  string anonymous_header_;
-  mutable RwMutex rw_mutex_;
-
-  static string gen_header(const Options &options, bool is_anonymous);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetActor.cpp b/third-party/td/td/td/telegram/net/NetActor.cpp
deleted file mode 100644
index 0a154c2bda..0000000000
--- a/third-party/td/td/td/telegram/net/NetActor.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/NetActor.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/Td.h"
-
-namespace td {
-
-NetActor::NetActor() : td_(static_cast<Td *>(G()->td().get_actor_unsafe())) {
-}
-
-void NetActor::set_parent(ActorShared<> parent) {
-  parent_ = std::move(parent);
-}
-
-void NetActor::on_result(NetQueryPtr query) {
-  CHECK(query->is_ready());
-  if (query->is_ok()) {
-    on_result(query->move_as_ok());
-  } else {
-    on_error(query->move_as_error());
-  }
-  on_result_finish();
-}
-
-void NetActor::send_query(NetQueryPtr query) {
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetActor.h b/third-party/td/td/td/telegram/net/NetActor.h
deleted file mode 100644
index 50d507d17a..0000000000
--- a/third-party/td/td/td/telegram/net/NetActor.h
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Td;
-
-class NetActor : public NetQueryCallback {
- public:
-  NetActor();
-
-  void set_parent(ActorShared<> parent);
-
-  void on_result(NetQueryPtr query) override;
-
-  virtual void on_result(BufferSlice packet) {
-    UNREACHABLE();
-  }
-
-  virtual void on_error(Status status) {
-    UNREACHABLE();
-  }
-
-  virtual void on_result_finish() {
-  }
-
- protected:
-  Td *td_;
-  ActorShared<> parent_;
-
-  void send_query(NetQueryPtr query);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQuery.cpp b/third-party/td/td/td/telegram/net/NetQuery.cpp
deleted file mode 100644
index 65c051fb32..0000000000
--- a/third-party/td/td/td/telegram/net/NetQuery.cpp
+++ /dev/null
@@ -1,185 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/telegram/ChainId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-#include <algorithm>
-
-namespace td {
-
-int VERBOSITY_NAME(net_query) = VERBOSITY_NAME(INFO);
-
-void NetQuery::debug(string state, bool may_be_lost) {
-  may_be_lost_ = may_be_lost;
-  VLOG(net_query) << *this << " [" << state << ']';
-  {
-    auto guard = lock();
-    auto &data = get_data_unsafe();
-    data.state_ = std::move(state);
-    data.state_timestamp_ = Time::now();
-    data.state_change_count_++;
-  }
-}
-
-NetQuery::NetQuery(uint64 id, BufferSlice &&query, DcId dc_id, Type type, AuthFlag auth_flag, GzipFlag gzip_flag,
-                   int32 tl_constructor, int32 total_timeout_limit, NetQueryStats *stats, vector<ChainId> chain_ids)
-    : state_(State::Query)
-    , type_(type)
-    , auth_flag_(auth_flag)
-    , gzip_flag_(gzip_flag)
-    , dc_id_(dc_id)
-    , status_()
-    , id_(id)
-    , query_(std::move(query))
-    , tl_constructor_(tl_constructor)
-    , total_timeout_limit_(total_timeout_limit) {
-  CHECK(id_ != 0);
-  chain_ids_ = transform(chain_ids, [](ChainId chain_id) { return chain_id.get() == 0 ? 1 : chain_id.get(); });
-  td::unique(chain_ids_);
-
-  auto &data = get_data_unsafe();
-  data.my_id_ = G()->get_option_integer("my_id");
-  data.start_timestamp_ = data.state_timestamp_ = Time::now();
-  LOG(INFO) << *this;
-  if (stats) {
-    nq_counter_ = stats->register_query(this);
-  }
-}
-
-void NetQuery::clear() {
-  if (!is_ready()) {
-    auto guard = lock();
-    LOG(ERROR) << "Destroy not ready query " << *this << " " << tag("state", get_data_unsafe().state_);
-  }
-  // TODO: CHECK if net_query is lost here
-  cancel_slot_.close();
-  *this = NetQuery();
-}
-
-void NetQuery::resend(DcId new_dc_id) {
-  VLOG(net_query) << "Resend " << *this;
-  {
-    auto guard = lock();
-    get_data_unsafe().resend_count_++;
-  }
-  dc_id_ = new_dc_id;
-  status_ = Status::OK();
-  state_ = State::Query;
-}
-
-bool NetQuery::update_is_ready() {
-  if (state_ == State::Query) {
-    if (cancellation_token_.load(std::memory_order_relaxed) == 0 || cancel_slot_.was_signal()) {
-      set_error_canceled();
-      return true;
-    }
-    return false;
-  }
-  return true;
-}
-
-void NetQuery::set_ok(BufferSlice slice) {
-  VLOG(net_query) << "Receive answer " << *this;
-  CHECK(state_ == State::Query);
-  answer_ = std::move(slice);
-  state_ = State::OK;
-}
-
-void NetQuery::on_net_write(size_t size) {
-  const auto &callbacks = G()->get_net_stats_file_callbacks();
-  if (static_cast<size_t>(file_type_) < callbacks.size()) {
-    callbacks[file_type_]->on_write(size);
-  }
-}
-
-void NetQuery::on_net_read(size_t size) {
-  const auto &callbacks = G()->get_net_stats_file_callbacks();
-  if (static_cast<size_t>(file_type_) < callbacks.size()) {
-    callbacks[file_type_]->on_read(size);
-  }
-}
-
-int32 NetQuery::tl_magic(const BufferSlice &buffer_slice) {
-  auto slice = buffer_slice.as_slice();
-  if (slice.size() < 4) {
-    return 0;
-  }
-  return as<int32>(slice.begin());
-}
-
-void NetQuery::set_error(Status status, string source) {
-  if (status.code() == Error::Resend || status.code() == Error::Canceled || status.code() == Error::ResendInvokeAfter) {
-    return set_error_impl(Status::Error(200, PSLICE() << status), std::move(source));
-  }
-
-  if (begins_with(status.message(), "INPUT_METHOD_INVALID")) {
-    LOG(ERROR) << "Receive INPUT_METHOD_INVALID for query " << format::as_hex_dump<4>(query_.as_slice());
-  }
-  if (status.message() == "BOT_METHOD_INVALID") {
-    auto id = tl_constructor();
-    if (id != telegram_api::help_getNearestDc::ID && id != telegram_api::help_getAppConfig::ID) {
-      LOG(ERROR) << "Receive BOT_METHOD_INVALID for query " << format::as_hex(id);
-    }
-  }
-  if (status.message() == "MSG_WAIT_FAILED" && status.code() != 400) {
-    status = Status::Error(400, "MSG_WAIT_FAILED");
-  }
-  set_error_impl(std::move(status), std::move(source));
-}
-
-void NetQuery::set_error_impl(Status status, string source) {
-  VLOG(net_query) << "Receive error " << *this << " " << status;
-  status_ = std::move(status);
-  state_ = State::Error;
-  source_ = std::move(source);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NetQuery &net_query) {
-  string_builder << "[Query:";
-  string_builder << tag("id", net_query.id());
-  string_builder << tag("tl", format::as_hex(net_query.tl_constructor()));
-  auto message_id = net_query.message_id();
-  if (message_id != 0) {
-    string_builder << tag("msg_id", format::as_hex(message_id));
-  }
-  if (net_query.is_error()) {
-    string_builder << net_query.error();
-  } else if (net_query.is_ok()) {
-    string_builder << tag("result_tl", format::as_hex(net_query.ok_tl_constructor()));
-  }
-  string_builder << ']';
-  return string_builder;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NetQueryPtr &net_query_ptr) {
-  if (net_query_ptr.empty()) {
-    return string_builder << "[Query: null]";
-  }
-  return string_builder << *net_query_ptr;
-}
-
-void NetQuery::add_verification_prefix(const string &prefix) {
-  CHECK(is_ready());
-  CHECK(is_error());
-  CHECK(!query_.empty());
-  BufferSlice query(prefix.size() + query_.size() - verification_prefix_length_);
-  query.as_mutable_slice().copy_from(prefix);
-  query.as_mutable_slice().substr(prefix.size()).copy_from(query_.as_slice().substr(verification_prefix_length_));
-  verification_prefix_length_ = narrow_cast<int32>(prefix.size());
-  query_ = std::move(query);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQuery.h b/third-party/td/td/td/telegram/net/NetQuery.h
deleted file mode 100644
index 45d4a230da..0000000000
--- a/third-party/td/td/td/telegram/net/NetQuery.h
+++ /dev/null
@@ -1,370 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQueryCounter.h"
-#include "td/telegram/net/NetQueryStats.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/SignalSlot.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/ObjectPool.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/TsList.h"
-
-#include <atomic>
-#include <utility>
-
-namespace td {
-
-extern int VERBOSITY_NAME(net_query);
-
-class ChainId;
-
-class NetQuery;
-using NetQueryPtr = ObjectPool<NetQuery>::OwnerPtr;
-using NetQueryRef = ObjectPool<NetQuery>::WeakPtr;
-
-class NetQueryCallback : public Actor {
- public:
-  virtual void on_result(NetQueryPtr query);
-  virtual void on_result_resendable(NetQueryPtr query, Promise<NetQueryPtr> promise);
-};
-
-class NetQuery final : public TsListNode<NetQueryDebug> {
-  enum class State : int8 { Empty, Query, OK, Error };
-
- public:
-  NetQuery() = default;
-
-  enum class Type : int8 { Common, Upload, Download, DownloadSmall };
-  enum class AuthFlag : int8 { Off, On };
-  enum class GzipFlag : int8 { Off, On };
-  enum Error : int32 { Resend = 202, Canceled = 203, ResendInvokeAfter = 204 };
-
-  uint64 id() const {
-    return id_;
-  }
-
-  DcId dc_id() const {
-    return dc_id_;
-  }
-
-  Type type() const {
-    return type_;
-  }
-
-  GzipFlag gzip_flag() const {
-    return gzip_flag_;
-  }
-
-  AuthFlag auth_flag() const {
-    return auth_flag_;
-  }
-
-  int32 tl_constructor() const {
-    return tl_constructor_;
-  }
-
-  void resend(DcId new_dc_id);
-
-  void resend() {
-    resend(dc_id_);
-  }
-
-  const BufferSlice &query() const {
-    return query_;
-  }
-
-  const BufferSlice &ok() const {
-    CHECK(state_ == State::OK);
-    return answer_;
-  }
-
-  const Status &error() const {
-    CHECK(state_ == State::Error);
-    return status_;
-  }
-
-  BufferSlice move_as_ok() {
-    auto ok = std::move(answer_);
-    clear();
-    return ok;
-  }
-
-  Status move_as_error() TD_WARN_UNUSED_RESULT {
-    auto status = std::move(status_);
-    clear();
-    return status;
-  }
-
-  void set_ok(BufferSlice slice);
-
-  void on_net_write(size_t size);
-  void on_net_read(size_t size);
-
-  void set_error(Status status, string source = string());
-
-  void set_error_resend() {
-    set_error_impl(Status::Error<Error::Resend>());
-  }
-
-  void set_error_canceled() {
-    set_error_impl(Status::Error<Error::Canceled>());
-  }
-
-  void set_error_resend_invoke_after() {
-    set_error_impl(Status::Error<Error::ResendInvokeAfter>());
-  }
-
-  bool update_is_ready();
-
-  bool is_ready() const {
-    return state_ != State::Query;
-  }
-
-  bool is_error() const {
-    return state_ == State::Error;
-  }
-
-  bool is_ok() const {
-    return state_ == State::OK;
-  }
-
-  int32 ok_tl_constructor() const {
-    return tl_magic(answer_);
-  }
-
-  uint64 session_id() const {
-    return session_id_.load(std::memory_order_relaxed);
-  }
-  void set_session_id(uint64 session_id) {
-    session_id_.store(session_id, std::memory_order_relaxed);
-  }
-
-  uint64 message_id() const {
-    return message_id_;
-  }
-
-  void set_message_id(uint64 message_id) {
-    message_id_ = message_id;
-    cancel_slot_.clear_event();
-  }
-
-  Span<NetQueryRef> invoke_after() const {
-    return invoke_after_;
-  }
-  void set_invoke_after(std::vector<NetQueryRef> refs) {
-    invoke_after_ = std::move(refs);
-  }
-  uint32 session_rand() const {
-    if (in_sequence_dispacher_ && !chain_ids_.empty()) {
-      return static_cast<uint32>(chain_ids_[0] >> 10);
-    }
-    return 0;
-  }
-
-  void cancel(int32 cancellation_token) {
-    cancellation_token_.compare_exchange_strong(cancellation_token, 0, std::memory_order_relaxed);
-  }
-  void set_cancellation_token(int32 cancellation_token) {
-    cancellation_token_.store(cancellation_token, std::memory_order_relaxed);
-  }
-
-  void clear();
-
-  bool empty() const {
-    return state_ == State::Empty || !nq_counter_ || may_be_lost_;
-  }
-
-  void stop_track() {
-    nq_counter_ = NetQueryCounter();
-    remove();
-  }
-
-  void debug_send_failed() {
-    auto guard = lock();
-    get_data_unsafe().send_failed_count_++;
-  }
-
-  void debug(string state, bool may_be_lost = false);
-
-  void set_callback(ActorShared<NetQueryCallback> callback) {
-    callback_ = std::move(callback);
-  }
-
-  ActorShared<NetQueryCallback> move_callback() {
-    return std::move(callback_);
-  }
-
-  void start_migrate(int32 sched_id) {
-    using ::td::start_migrate;
-    start_migrate(cancel_slot_, sched_id);
-  }
-  void finish_migrate() {
-    using ::td::finish_migrate;
-    finish_migrate(cancel_slot_);
-  }
-
-  bool is_high_priority() const {
-    return is_high_priority_;
-  }
-  void make_high_priority() {
-    is_high_priority_ = true;
-  }
-
-  Span<uint64> get_chain_ids() const {
-    return chain_ids_;
-  }
-
-  void set_in_sequence_dispatcher(bool in_sequence_dispacher) {
-    in_sequence_dispacher_ = in_sequence_dispacher;
-  }
-  bool in_sequence_dispatcher() const {
-    return in_sequence_dispacher_;
-  }
-
-  void add_verification_prefix(const string &prefix);
-
-  bool has_verification_prefix() const {
-    return verification_prefix_length_ != 0;
-  }
-
- private:
-  State state_ = State::Empty;
-  Type type_ = Type::Common;
-  AuthFlag auth_flag_ = AuthFlag::Off;
-  GzipFlag gzip_flag_ = GzipFlag::Off;
-  DcId dc_id_;
-
-  NetQueryCounter nq_counter_;
-  Status status_;
-  uint64 id_ = 0;
-  BufferSlice query_;
-  BufferSlice answer_;
-  int32 tl_constructor_ = 0;
-  int32 verification_prefix_length_ = 0;
-
-  vector<NetQueryRef> invoke_after_;
-  vector<uint64> chain_ids_;
-
-  bool in_sequence_dispacher_ = false;
-  bool may_be_lost_ = false;
-  bool is_high_priority_ = false;
-
-  template <class T>
-  struct movable_atomic final : public std::atomic<T> {
-    movable_atomic() = default;
-    movable_atomic(T &&x) : std::atomic<T>(std::forward<T>(x)) {
-    }
-    movable_atomic(movable_atomic &&other) noexcept {
-      this->store(other.load(std::memory_order_relaxed), std::memory_order_relaxed);
-    }
-    movable_atomic &operator=(movable_atomic &&other) noexcept {
-      this->store(other.load(std::memory_order_relaxed), std::memory_order_relaxed);
-      return *this;
-    }
-    movable_atomic(const movable_atomic &) = delete;
-    movable_atomic &operator=(const movable_atomic &) = delete;
-    ~movable_atomic() = default;
-  };
-
-  movable_atomic<uint64> session_id_{0};
-  uint64 message_id_{0};
-
-  movable_atomic<int32> cancellation_token_{-1};  // == 0 if query is canceled
-  ActorShared<NetQueryCallback> callback_;
-
-  void set_error_impl(Status status, string source = string());
-
-  static int32 tl_magic(const BufferSlice &buffer_slice);
-
- public:
-  int32 next_timeout_ = 1;          // for NetQueryDelayer
-  int32 total_timeout_ = 0;         // for NetQueryDelayer/SequenceDispatcher
-  int32 total_timeout_limit_ = 60;  // for NetQueryDelayer/SequenceDispatcher and to be set by caller
-  int32 last_timeout_ = 0;          // for NetQueryDelayer/SequenceDispatcher
-  string source_;                   // for NetQueryDelayer/SequenceDispatcher
-  int32 dispatch_ttl_ = -1;         // for NetQueryDispatcher and to be set by caller
-  int32 file_type_ = -1;            // to be set by caller
-  Slot cancel_slot_;                // for Session and to be set by caller
-  Promise<> quick_ack_promise_;     // for Session and to be set by caller
-  bool need_resend_on_503_ = true;  // for NetQueryDispatcher and to be set by caller
-
-  NetQuery(uint64 id, BufferSlice &&query, DcId dc_id, Type type, AuthFlag auth_flag, GzipFlag gzip_flag,
-           int32 tl_constructor, int32 total_timeout_limit, NetQueryStats *stats, vector<ChainId> chain_ids);
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NetQuery &net_query);
-
-StringBuilder &operator<<(StringBuilder &string_builder, const NetQueryPtr &net_query_ptr);
-
-inline void cancel_query(NetQueryRef &ref) {
-  if (ref.empty()) {
-    return;
-  }
-  ref->cancel(ref.generation());
-}
-
-template <class T>
-Result<typename T::ReturnType> fetch_result(const BufferSlice &message) {
-  TlBufferParser parser(&message);
-  auto result = T::fetch_result(parser);
-  parser.fetch_end();
-
-  const char *error = parser.get_error();
-  if (error != nullptr) {
-    LOG(ERROR) << "Can't parse: " << format::as_hex_dump<4>(message.as_slice());
-    return Status::Error(500, Slice(error));
-  }
-
-  return std::move(result);
-}
-
-template <class T>
-Result<typename T::ReturnType> fetch_result(NetQueryPtr query) {
-  CHECK(!query.empty());
-  if (query->is_error()) {
-    return query->move_as_error();
-  }
-  auto buffer = query->move_as_ok();
-  return fetch_result<T>(buffer);
-}
-
-template <class T>
-Result<typename T::ReturnType> fetch_result(Result<NetQueryPtr> r_query) {
-  TRY_RESULT(query, std::move(r_query));
-  return fetch_result<T>(std::move(query));
-}
-
-inline void NetQueryCallback::on_result(NetQueryPtr query) {
-  on_result_resendable(std::move(query), Auto());
-}
-
-inline void NetQueryCallback::on_result_resendable(NetQueryPtr query, Promise<NetQueryPtr> promise) {
-  on_result(std::move(query));
-}
-
-inline void start_migrate(NetQueryPtr &net_query, int32 sched_id) {
-  net_query->start_migrate(sched_id);
-}
-
-inline void finish_migrate(NetQueryPtr &net_query) {
-  net_query->finish_migrate();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryCounter.h b/third-party/td/td/td/telegram/net/NetQueryCounter.h
deleted file mode 100644
index b987a31ceb..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryCounter.h
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <atomic>
-#include <memory>
-
-namespace td {
-
-class NetQueryCounter {
- public:
-  using Counter = std::atomic<uint64>;
-
-  NetQueryCounter() = default;
-
-  explicit NetQueryCounter(Counter *counter) : ptr_(counter) {
-    CHECK(counter != nullptr);
-    counter->fetch_add(1, std::memory_order_relaxed);
-  }
-
-  explicit operator bool() const noexcept {
-    return static_cast<bool>(ptr_);
-  }
-
- private:
-  struct Deleter {
-    void operator()(Counter *ptr) {
-      ptr->fetch_sub(1, std::memory_order_relaxed);
-    }
-  };
-  std::unique_ptr<Counter, Deleter> ptr_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryCreator.cpp b/third-party/td/td/td/telegram/net/NetQueryCreator.cpp
deleted file mode 100644
index cda7c403d6..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryCreator.cpp
+++ /dev/null
@@ -1,110 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/NetQueryCreator.h"
-
-#include "td/telegram/AuthManager.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/Gzip.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Storer.h"
-
-namespace td {
-
-NetQueryCreator::NetQueryCreator(std::shared_ptr<NetQueryStats> net_query_stats)
-    : net_query_stats_(std::move(net_query_stats))
-    , current_scheduler_id_(Scheduler::instance() == nullptr ? -2 : Scheduler::instance()->sched_id()) {
-  object_pool_.set_check_empty(true);
-}
-
-NetQueryPtr NetQueryCreator::create(const telegram_api::Function &function, vector<ChainId> chain_ids, DcId dc_id,
-                                    NetQuery::Type type) {
-  return create(UniqueId::next(), nullptr, function, std::move(chain_ids), dc_id, type, NetQuery::AuthFlag::On);
-}
-
-NetQueryPtr NetQueryCreator::create_with_prefix(const telegram_api::object_ptr<telegram_api::Function> &prefix,
-                                                const telegram_api::Function &function, DcId dc_id,
-                                                vector<ChainId> chain_ids, NetQuery::Type type) {
-  return create(UniqueId::next(), prefix, function, std::move(chain_ids), dc_id, type, NetQuery::AuthFlag::On);
-}
-
-NetQueryPtr NetQueryCreator::create(uint64 id, const telegram_api::object_ptr<telegram_api::Function> &prefix,
-                                    const telegram_api::Function &function, vector<ChainId> &&chain_ids, DcId dc_id,
-                                    NetQuery::Type type, NetQuery::AuthFlag auth_flag) {
-  LOG(INFO) << "Create query " << (prefix != nullptr ? "with a prefix " : "") << to_string(function);
-  string prefix_str;
-  if (prefix != nullptr) {
-    auto storer = DefaultStorer<telegram_api::Function>(*prefix);
-    prefix_str.resize(storer.size());
-    auto real_size = storer.store(MutableSlice(prefix_str).ubegin());
-    CHECK(real_size == prefix_str.size());
-  }
-
-  auto storer = DefaultStorer<telegram_api::Function>(function);
-  BufferSlice slice(prefix_str.size() + storer.size());
-  auto real_size = storer.store(slice.as_mutable_slice().ubegin() + prefix_str.size());
-  LOG_CHECK(prefix_str.size() + real_size == slice.size())
-      << prefix_str.size() << ' ' << real_size << ' ' << slice.size() << ' '
-      << format::as_hex_dump<4>(slice.as_slice());
-  if (prefix != nullptr) {
-    slice.as_mutable_slice().copy_from(prefix_str);
-  }
-
-  size_t min_gzipped_size = 128;
-  int32 tl_constructor = function.get_id();
-  int32 total_timeout_limit = 60;
-
-  if (Scheduler::instance() != nullptr && current_scheduler_id_ == Scheduler::instance()->sched_id() &&
-      !G()->close_flag()) {
-    auto td = G()->td();
-    if (!td.empty()) {
-      auto auth_manager = td.get_actor_unsafe()->auth_manager_.get();
-      if (auth_manager != nullptr && auth_manager->is_bot()) {
-        total_timeout_limit = 8;
-        min_gzipped_size = 1024;
-      }
-      if ((auth_manager == nullptr || !auth_manager->was_authorized()) && auth_flag == NetQuery::AuthFlag::On &&
-          tl_constructor != telegram_api::auth_exportAuthorization::ID &&
-          tl_constructor != telegram_api::auth_bindTempAuthKey::ID) {
-        LOG(ERROR) << "Send query before authorization: " << to_string(function);
-      }
-    }
-  }
-
-  auto gzip_flag = slice.size() < min_gzipped_size ? NetQuery::GzipFlag::Off : NetQuery::GzipFlag::On;
-  if (slice.size() >= 16384) {
-    // test compression ratio for the middle part
-    // if it is less than 0.9, then try to compress the whole request
-    size_t TESTED_SIZE = 1024;
-    BufferSlice compressed_part = gzencode(slice.as_slice().substr((slice.size() - TESTED_SIZE) / 2, TESTED_SIZE), 0.9);
-    if (compressed_part.empty()) {
-      gzip_flag = NetQuery::GzipFlag::Off;
-    }
-  }
-  if (gzip_flag == NetQuery::GzipFlag::On) {
-    BufferSlice compressed = gzencode(slice.as_slice(), 0.9);
-    if (compressed.empty()) {
-      gzip_flag = NetQuery::GzipFlag::Off;
-    } else {
-      slice = std::move(compressed);
-    }
-  }
-
-  auto query = object_pool_.create(id, std::move(slice), dc_id, type, auth_flag, gzip_flag, tl_constructor,
-                                   total_timeout_limit, net_query_stats_.get(), std::move(chain_ids));
-  query->set_cancellation_token(query.generation());
-  return query;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryCreator.h b/third-party/td/td/td/telegram/net/NetQueryCreator.h
deleted file mode 100644
index 2df6675ee1..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryCreator.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/ChainId.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryStats.h"
-#include "td/telegram/UniqueId.h"
-
-#include "td/utils/common.h"
-#include "td/utils/ObjectPool.h"
-
-#include <memory>
-
-namespace td {
-
-namespace telegram_api {
-class Function;
-}  // namespace telegram_api
-
-class NetQueryCreator {
- public:
-  explicit NetQueryCreator(std::shared_ptr<NetQueryStats> net_query_stats);
-
-  void stop_check() {
-    object_pool_.set_check_empty(false);
-  }
-
-  NetQueryPtr create(const telegram_api::Function &function, vector<ChainId> chain_ids = {}, DcId dc_id = DcId::main(),
-                     NetQuery::Type type = NetQuery::Type::Common);
-
-  NetQueryPtr create_unauth(const telegram_api::Function &function, DcId dc_id = DcId::main()) {
-    return create(UniqueId::next(), nullptr, function, {}, dc_id, NetQuery::Type::Common, NetQuery::AuthFlag::Off);
-  }
-
-  NetQueryPtr create_with_prefix(const telegram_api::object_ptr<telegram_api::Function> &prefix,
-                                 const telegram_api::Function &function, DcId dc_id, vector<ChainId> chain_ids = {},
-                                 NetQuery::Type type = NetQuery::Type::Common);
-
-  NetQueryPtr create(uint64 id, const telegram_api::object_ptr<telegram_api::Function> &prefix,
-                     const telegram_api::Function &function, vector<ChainId> &&chain_ids, DcId dc_id,
-                     NetQuery::Type type, NetQuery::AuthFlag auth_flag);
-
- private:
-  std::shared_ptr<NetQueryStats> net_query_stats_;
-  ObjectPool<NetQuery> object_pool_;
-  int32 current_scheduler_id_ = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryDelayer.cpp b/third-party/td/td/td/telegram/net/NetQueryDelayer.cpp
deleted file mode 100644
index e3371b2097..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryDelayer.cpp
+++ /dev/null
@@ -1,146 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/NetQueryDelayer.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-void NetQueryDelayer::delay(NetQueryPtr query) {
-  query->debug("trying to delay");
-  CHECK(query->is_ready());
-  CHECK(query->is_error());
-  auto code = query->error().code();
-  int32 timeout = 0;
-  if (code < 0) {
-    // skip
-  } else if (code == 500) {
-    auto error_message = query->error().message();
-    if (error_message == "WORKER_BUSY_TOO_LONG_RETRY") {
-      timeout = 1;  // it is dangerous to resend query without timeout, so use 1
-    }
-  } else if (code == 420) {
-    auto error_message = query->error().message();
-    for (auto prefix : {Slice("FLOOD_WAIT_"), Slice("SLOWMODE_WAIT_"), Slice("2FA_CONFIRM_WAIT_"),
-                        Slice("TAKEOUT_INIT_DELAY_"), Slice("FLOOD_PREMIUM_WAIT_")}) {
-      if (begins_with(error_message, prefix)) {
-        timeout = clamp(to_integer<int>(error_message.substr(prefix.size())), 1, 14 * 24 * 60 * 60);
-        if (prefix == "FLOOD_PREMIUM_WAIT_") {
-          switch (query->type()) {
-            case NetQuery::Type::Common:
-              LOG(ERROR) << "Receive " << error_message << " for " << query;
-              break;
-            case NetQuery::Type::Upload:
-              G()->notify_speed_limited(true);
-              break;
-            case NetQuery::Type::Download:
-            case NetQuery::Type::DownloadSmall:
-              G()->notify_speed_limited(false);
-              break;
-            default:
-              UNREACHABLE();
-          }
-        }
-        break;
-      }
-    }
-    if (timeout == 0) {
-      if (begins_with(error_message, "FLOOD_SKIP_FAILED_WAIT")) {
-        timeout = 1;
-      }
-    }
-  } else {
-    G()->net_query_dispatcher().dispatch(std::move(query));
-    return;
-  }
-
-  if (timeout == 0) {
-    timeout = query->next_timeout_;
-    if (timeout < 60) {
-      query->next_timeout_ *= 2;
-    }
-  } else {
-    query->next_timeout_ = 1;
-  }
-  query->total_timeout_ += timeout;
-  query->last_timeout_ = timeout;
-  LOG(INFO) << "Set total_timeout to " << query->total_timeout_ << " for " << query->id();
-
-  auto error = query->error().clone();
-  query->resend();
-
-  // Fix for infinity flood control
-  if (!query->need_resend_on_503_ && code == -503) {
-    query->set_error(Status::Error(502, "Bad Gateway"));
-    query->debug("DcManager: send to DcManager");
-    G()->net_query_dispatcher().dispatch(std::move(query));
-    return;
-  }
-
-  if (query->total_timeout_ > query->total_timeout_limit_) {
-    // TODO: support timeouts in DcAuth and GetConfig
-    LOG(WARNING) << "Failed: " << query << " " << tag("timeout", timeout) << tag("total_timeout", query->total_timeout_)
-                 << " because of " << error << " from " << query->source_;
-    // NB: code must differ from tdapi FLOOD_WAIT code
-    query->set_error(Status::Error(429, PSLICE() << "Too Many Requests: retry after " << timeout));
-    query->debug("DcManager: send to DcManager");
-    G()->net_query_dispatcher().dispatch(std::move(query));
-    return;
-  }
-
-  LOG(WARNING) << "Delay: " << query << " " << tag("timeout", timeout) << tag("total_timeout", query->total_timeout_)
-               << " because of " << error << " from " << query->source_;
-  query->debug(PSTRING() << "delay for " << format::as_time(timeout));
-  auto id = container_.create(QuerySlot());
-  auto *query_slot = container_.get(id);
-  query_slot->query_ = std::move(query);
-  query_slot->timeout_.set_event(EventCreator::yield(actor_shared(this, id)));
-  query_slot->timeout_.set_timeout_in(timeout);
-}
-
-void NetQueryDelayer::wakeup() {
-  auto link_token = get_link_token();
-  if (link_token) {
-    on_slot_event(link_token);
-  }
-  loop();
-}
-
-void NetQueryDelayer::on_slot_event(uint64 id) {
-  auto *slot = container_.get(id);
-  if (slot == nullptr) {
-    return;
-  }
-  auto query = std::move(slot->query_);
-  if (!query->invoke_after().empty()) {
-    // Fail query after timeout expired if it is a part of an invokeAfter chain.
-    // It is not necessary but helps to avoid server problems, when previous query was lost.
-    query->set_error_resend_invoke_after();
-  }
-  slot->timeout_.close();
-  container_.erase(id);
-  G()->net_query_dispatcher().dispatch(std::move(query));
-}
-
-void NetQueryDelayer::tear_down() {
-  container_.for_each([](auto id, auto &query_slot) {
-    query_slot.query_->set_error(Global::request_aborted_error());
-    G()->net_query_dispatcher().dispatch(std::move(query_slot.query_));
-  });
-  parent_.reset();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryDelayer.h b/third-party/td/td/td/telegram/net/NetQueryDelayer.h
deleted file mode 100644
index 1dc4339c77..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryDelayer.h
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/SignalSlot.h"
-
-#include "td/utils/Container.h"
-
-namespace td {
-
-class NetQueryDelayer final : public Actor {
- public:
-  explicit NetQueryDelayer(ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-  void delay(NetQueryPtr query);
-
- private:
-  struct QuerySlot {
-    NetQueryPtr query_;
-    Slot timeout_;
-  };
-  Container<QuerySlot> container_;
-  ActorShared<> parent_;
-  void wakeup() final;
-
-  void on_slot_event(uint64 id);
-
-  void tear_down() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryDispatcher.cpp b/third-party/td/td/td/telegram/net/NetQueryDispatcher.cpp
deleted file mode 100644
index e53d83c5dd..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryDispatcher.cpp
+++ /dev/null
@@ -1,452 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/NetQueryDispatcher.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/AuthDataShared.h"
-#include "td/telegram/net/DcAuthManager.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryDelayer.h"
-#include "td/telegram/net/NetQueryVerifier.h"
-#include "td/telegram/net/PublicRsaKeySharedCdn.h"
-#include "td/telegram/net/PublicRsaKeySharedMain.h"
-#include "td/telegram/net/PublicRsaKeyWatchdog.h"
-#include "td/telegram/net/SessionMultiProxy.h"
-#include "td/telegram/SequenceDispatcher.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/mtproto/RSA.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-#define TD_TEST_VERIFICATION 0
-
-void NetQueryDispatcher::complete_net_query(NetQueryPtr net_query) {
-  auto callback = net_query->move_callback();
-  if (callback.empty()) {
-    net_query->debug("sent to handler");
-    send_closure_later(G()->td(), &Td::on_result, std::move(net_query));
-  } else {
-    net_query->debug("sent to callback", true);
-    send_closure_later(std::move(callback), &NetQueryCallback::on_result, std::move(net_query));
-  }
-}
-
-bool NetQueryDispatcher::check_stop_flag(NetQueryPtr &net_query) const {
-  if (stop_flag_.load(std::memory_order_relaxed)) {
-    net_query->set_error(Global::request_aborted_error());
-    complete_net_query(std::move(net_query));
-    return true;
-  }
-  return false;
-}
-
-void NetQueryDispatcher::dispatch(NetQueryPtr net_query) {
-  if (check_stop_flag(net_query)) {
-    return;
-  }
-  if (false && G()->get_option_boolean("test_flood_wait")) {
-    net_query->set_error(Status::Error(429, "Too Many Requests: retry after 10"));
-    return complete_net_query(std::move(net_query));
-    //    if (net_query->is_ok() && net_query->tl_constructor() == telegram_api::messages_sendMessage::ID) {
-    //      net_query->set_error(Status::Error(420, "FLOOD_WAIT_10"));
-    //    }
-  }
-  if (false && net_query->tl_constructor() == telegram_api::account_getPassword::ID) {
-    net_query->set_error(Status::Error(429, "Too Many Requests: retry after 10"));
-    return complete_net_query(std::move(net_query));
-  }
-#if TD_TEST_VERIFICATION
-  if (net_query->tl_constructor() == telegram_api::account_getAuthorizations::ID &&
-      !net_query->has_verification_prefix() && !net_query->is_ready()) {
-    net_query->set_error(Status::Error(403, "APNS_VERIFY_CHECK_ABCD"));
-  }
-  if (net_query->tl_constructor() == telegram_api::auth_sendCode::ID && !net_query->has_verification_prefix() &&
-      !net_query->is_ready()) {
-    net_query->set_error(Status::Error(403, "RECAPTCHA_CHECK_AB_CD__KEY"));
-  }
-#endif
-
-  if (!net_query->in_sequence_dispatcher() && !net_query->get_chain_ids().empty()) {
-    net_query->debug("sent to main sequence dispatcher");
-    std::lock_guard<std::mutex> guard(mutex_);
-    if (check_stop_flag(net_query)) {
-      return;
-    }
-    send_closure_later(sequence_dispatcher_, &MultiSequenceDispatcher::send, std::move(net_query));
-    return;
-  }
-
-  if (net_query->is_ready() && net_query->is_error()) {
-    auto code = net_query->error().code();
-    auto message = net_query->error().message();
-    if (code == 303) {
-      try_fix_migrate(net_query);
-    } else if (code == NetQuery::Resend) {
-      net_query->resend();
-    } else if (code == 420 && message == "FROZEN_METHOD_INVALID") {
-      net_query->set_error(Status::Error(406, message));
-    } else if (code < 0 || code == 500 ||
-               (code == 420 && !begins_with(net_query->error().message(), "STORY_SEND_FLOOD_") &&
-                !begins_with(net_query->error().message(), "PREMIUM_SUB_ACTIVE_UNTIL_"))) {
-      net_query->debug("sent to NetQueryDelayer");
-      std::lock_guard<std::mutex> guard(mutex_);
-      if (check_stop_flag(net_query)) {
-        return;
-      }
-      return send_closure_later(delayer_, &NetQueryDelayer::delay, std::move(net_query));
-#if TD_ANDROID || TD_DARWIN_IOS || TD_DARWIN_VISION_OS || TD_DARWIN_WATCH_OS || TD_TEST_VERIFICATION
-    } else if (code == 403) {
-      Slice captcha_prefix = "RECAPTCHA_CHECK_";
-      if (begins_with(net_query->error().message(), captcha_prefix)) {
-        net_query->debug("sent to NetQueryVerifier");
-        std::lock_guard<std::mutex> guard(mutex_);
-        if (check_stop_flag(net_query)) {
-          return;
-        }
-        auto parameters = net_query->error().message().substr(captcha_prefix.size());
-        string action;
-        string recaptcha_key_id;
-        for (std::size_t i = 0; i + 1 < parameters.size(); i++) {
-          if (parameters[i] == '_' && parameters[i + 1] == '_') {
-            action = parameters.substr(0, i).str();
-            recaptcha_key_id = parameters.substr(i + 2).str();
-          }
-        }
-        return send_closure_later(verifier_, &NetQueryVerifier::check_recaptcha, std::move(net_query),
-                                  std::move(action), std::move(recaptcha_key_id));
-      }
-#if TD_ANDROID
-      Slice prefix("INTEGRITY_CHECK_CLASSIC_");
-#else
-      Slice prefix("APNS_VERIFY_CHECK_");
-#endif
-      if (begins_with(net_query->error().message(), prefix)) {
-        net_query->debug("sent to NetQueryVerifier");
-        std::lock_guard<std::mutex> guard(mutex_);
-        if (check_stop_flag(net_query)) {
-          return;
-        }
-        string nonce = net_query->error().message().substr(prefix.size()).str();
-        return send_closure_later(verifier_, &NetQueryVerifier::verify, std::move(net_query), std::move(nonce));
-      }
-#endif
-    }
-  }
-
-  if (!net_query->is_ready()) {
-    if (net_query->dispatch_ttl_ == 0) {
-      net_query->set_error(Status::Error("DispatchTtlError"));
-    }
-  }
-
-  auto dest_dc_id = net_query->dc_id();
-  if (dest_dc_id.is_main()) {
-    dest_dc_id = DcId::internal(main_dc_id_.load(std::memory_order_relaxed));
-  }
-  if (!net_query->is_ready() && wait_dc_init(dest_dc_id, true).is_error()) {
-    net_query->set_error(Status::Error(PSLICE() << "No such dc " << dest_dc_id));
-  }
-
-  if (net_query->is_ready()) {
-    return complete_net_query(std::move(net_query));
-  }
-
-  if (net_query->dispatch_ttl_ > 0) {
-    net_query->dispatch_ttl_--;
-  }
-
-  auto dc_pos = static_cast<size_t>(dest_dc_id.get_raw_id() - 1);
-  CHECK(dc_pos < dcs_.size());
-  std::lock_guard<std::mutex> guard(mutex_);
-  if (check_stop_flag(net_query)) {
-    return;
-  }
-  switch (net_query->type()) {
-    case NetQuery::Type::Common:
-      net_query->debug(PSTRING() << "sent to main session multi proxy " << dest_dc_id);
-      send_closure_later(dcs_[dc_pos].main_session_, &SessionMultiProxy::send, std::move(net_query));
-      break;
-    case NetQuery::Type::Upload:
-      net_query->debug(PSTRING() << "sent to upload session multi proxy " << dest_dc_id);
-      send_closure_later(dcs_[dc_pos].upload_session_, &SessionMultiProxy::send, std::move(net_query));
-      break;
-    case NetQuery::Type::Download:
-      net_query->debug(PSTRING() << "sent to download session multi proxy " << dest_dc_id);
-      send_closure_later(dcs_[dc_pos].download_session_, &SessionMultiProxy::send, std::move(net_query));
-      break;
-    case NetQuery::Type::DownloadSmall:
-      net_query->debug(PSTRING() << "sent to download small session multi proxy " << dest_dc_id);
-      send_closure_later(dcs_[dc_pos].download_small_session_, &SessionMultiProxy::send, std::move(net_query));
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-Status NetQueryDispatcher::wait_dc_init(DcId dc_id, bool force) {
-  // TODO: optimize
-  if (!dc_id.is_exact()) {
-    return Status::Error("Not exact DC");
-  }
-  auto pos = static_cast<size_t>(dc_id.get_raw_id() - 1);
-  if (pos >= dcs_.size()) {
-    return Status::Error("Too big DC ID");
-  }
-  auto &dc = dcs_[pos];
-
-  bool should_init = false;
-  if (!dc.is_valid_) {
-    if (!force) {
-      return Status::Error("Invalid DC");
-    }
-    bool expected = false;
-    should_init =
-        dc.is_valid_.compare_exchange_strong(expected, true, std::memory_order_seq_cst, std::memory_order_seq_cst);
-  }
-
-  if (should_init) {
-    std::lock_guard<std::mutex> guard(mutex_);
-    if (stop_flag_.load(std::memory_order_relaxed) || need_destroy_auth_key_) {
-      return Status::Error("Closing");
-    }
-    // init dc
-    dc.id_ = dc_id;
-    std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key;
-    bool is_cdn = false;
-    if (dc_id.is_internal()) {
-      public_rsa_key = PublicRsaKeySharedMain::create(G()->is_test_dc());
-    } else {
-      auto public_rsa_key_cdn = std::make_shared<PublicRsaKeySharedCdn>(dc_id);
-      send_closure_later(public_rsa_key_watchdog_, &PublicRsaKeyWatchdog::add_public_rsa_key, public_rsa_key_cdn);
-      public_rsa_key = public_rsa_key_cdn;
-      is_cdn = true;
-    }
-    auto auth_data = AuthDataShared::create(dc_id, std::move(public_rsa_key), td_guard_);
-    int32 session_count = get_session_count();
-    bool use_pfs = get_use_pfs();
-
-    int32 main_session_scheduler_id = G()->get_main_session_scheduler_id();
-    int32 slow_net_scheduler_id = G()->get_slow_net_scheduler_id();
-
-    auto raw_dc_id = dc_id.get_raw_id();
-    bool is_premium = G()->get_option_boolean("is_premium");
-    int32 upload_session_count = (raw_dc_id != 2 && raw_dc_id != 4) || is_premium ? 8 : 4;
-    int32 download_session_count = is_premium ? 8 : 2;
-    int32 download_small_session_count = is_premium ? 8 : 2;
-    dc.main_session_ = create_actor_on_scheduler<SessionMultiProxy>(
-        PSLICE() << "SessionMultiProxy:" << raw_dc_id << ":main", main_session_scheduler_id, session_count, auth_data,
-        true, raw_dc_id == main_dc_id_, use_pfs, false, false, is_cdn);
-    dc.upload_session_ = create_actor_on_scheduler<SessionMultiProxy>(
-        PSLICE() << "SessionMultiProxy:" << raw_dc_id << ":upload", slow_net_scheduler_id, upload_session_count,
-        auth_data, false, false, use_pfs, false, true, is_cdn);
-    dc.download_session_ = create_actor_on_scheduler<SessionMultiProxy>(
-        PSLICE() << "SessionMultiProxy:" << raw_dc_id << ":download", slow_net_scheduler_id, download_session_count,
-        auth_data, false, false, use_pfs, true, true, is_cdn);
-    dc.download_small_session_ = create_actor_on_scheduler<SessionMultiProxy>(
-        PSLICE() << "SessionMultiProxy:" << raw_dc_id << ":download_small", slow_net_scheduler_id,
-        download_small_session_count, auth_data, false, false, use_pfs, true, true, is_cdn);
-    dc.is_inited_ = true;
-    if (dc_id.is_internal()) {
-      send_closure_later(dc_auth_manager_, &DcAuthManager::add_dc, std::move(auth_data));
-    }
-  } else {
-    while (!dc.is_inited_) {
-      if (stop_flag_.load(std::memory_order_relaxed)) {
-        return Status::Error("Closing");
-      }
-#if !TD_THREAD_UNSUPPORTED
-      usleep_for(1);
-#endif
-    }
-  }
-  return Status::OK();
-}
-
-void NetQueryDispatcher::dispatch_with_callback(NetQueryPtr net_query, ActorShared<NetQueryCallback> callback) {
-  net_query->set_callback(std::move(callback));
-  dispatch(std::move(net_query));
-}
-
-void NetQueryDispatcher::stop() {
-  std::lock_guard<std::mutex> guard(mutex_);
-  stop_flag_ = true;
-  delayer_.reset();
-  verifier_.reset();
-  for (auto &dc : dcs_) {
-    dc.main_session_.reset();
-    dc.upload_session_.reset();
-    dc.download_session_.reset();
-    dc.download_small_session_.reset();
-  }
-  public_rsa_key_watchdog_.reset();
-  dc_auth_manager_.reset();
-  sequence_dispatcher_.reset();
-  td_guard_.reset();
-}
-
-void NetQueryDispatcher::update_session_count() {
-  std::lock_guard<std::mutex> guard(mutex_);
-  int32 session_count = get_session_count();
-  bool use_pfs = get_use_pfs();
-  for (int32 i = 1; i < DcId::MAX_RAW_DC_ID; i++) {
-    if (is_dc_inited(i)) {
-      send_closure_later(dcs_[i - 1].main_session_, &SessionMultiProxy::update_options, session_count, use_pfs,
-                         need_destroy_auth_key_);
-      send_closure_later(dcs_[i - 1].upload_session_, &SessionMultiProxy::update_use_pfs, use_pfs);
-      send_closure_later(dcs_[i - 1].download_session_, &SessionMultiProxy::update_use_pfs, use_pfs);
-      send_closure_later(dcs_[i - 1].download_small_session_, &SessionMultiProxy::update_use_pfs, use_pfs);
-    }
-  }
-}
-void NetQueryDispatcher::destroy_auth_keys(Promise<> promise) {
-  for (int32 i = 1; i < DcId::MAX_RAW_DC_ID && i <= 5; i++) {
-    auto dc_id = DcId::internal(i);
-    if (!is_dc_inited(i) && !AuthDataShared::get_auth_key_for_dc(dc_id).empty()) {
-      wait_dc_init(dc_id, true).ignore();
-    }
-  }
-
-  std::lock_guard<std::mutex> guard(mutex_);
-  LOG(INFO) << "Destroy auth keys";
-  need_destroy_auth_key_ = true;
-  for (int32 i = 1; i < DcId::MAX_RAW_DC_ID; i++) {
-    if (is_dc_inited(i) && dcs_[i - 1].id_.is_internal()) {
-      send_closure_later(dcs_[i - 1].main_session_, &SessionMultiProxy::destroy_auth_key);
-    }
-  }
-  send_closure_later(dc_auth_manager_, &DcAuthManager::destroy, std::move(promise));
-}
-
-void NetQueryDispatcher::update_use_pfs() {
-  std::lock_guard<std::mutex> guard(mutex_);
-  bool use_pfs = get_use_pfs();
-  for (int32 i = 1; i < DcId::MAX_RAW_DC_ID; i++) {
-    if (is_dc_inited(i)) {
-      send_closure_later(dcs_[i - 1].main_session_, &SessionMultiProxy::update_use_pfs, use_pfs);
-      send_closure_later(dcs_[i - 1].upload_session_, &SessionMultiProxy::update_use_pfs, use_pfs);
-      send_closure_later(dcs_[i - 1].download_session_, &SessionMultiProxy::update_use_pfs, use_pfs);
-      send_closure_later(dcs_[i - 1].download_small_session_, &SessionMultiProxy::update_use_pfs, use_pfs);
-    }
-  }
-}
-
-void NetQueryDispatcher::update_mtproto_header() {
-  std::lock_guard<std::mutex> guard(mutex_);
-  for (int32 i = 1; i < DcId::MAX_RAW_DC_ID; i++) {
-    if (is_dc_inited(i)) {
-      send_closure_later(dcs_[i - 1].main_session_, &SessionMultiProxy::update_mtproto_header);
-      send_closure_later(dcs_[i - 1].upload_session_, &SessionMultiProxy::update_mtproto_header);
-      send_closure_later(dcs_[i - 1].download_session_, &SessionMultiProxy::update_mtproto_header);
-      send_closure_later(dcs_[i - 1].download_small_session_, &SessionMultiProxy::update_mtproto_header);
-    }
-  }
-}
-
-bool NetQueryDispatcher::is_dc_inited(int32 raw_dc_id) {
-  return dcs_[raw_dc_id - 1].is_valid_.load(std::memory_order_relaxed);
-}
-
-int32 NetQueryDispatcher::get_session_count() {
-  return max(narrow_cast<int32>(G()->get_option_integer("session_count")), 1);
-}
-
-bool NetQueryDispatcher::get_use_pfs() {
-  return G()->get_option_boolean("use_pfs") || get_session_count() > 1;
-}
-
-NetQueryDispatcher::NetQueryDispatcher(const std::function<ActorShared<>()> &create_reference) {
-  auto s_main_dc_id = G()->td_db()->get_binlog_pmc()->get("main_dc_id");
-  if (!s_main_dc_id.empty()) {
-    main_dc_id_ = to_integer<int32>(s_main_dc_id);
-  }
-  delayer_ = create_actor<NetQueryDelayer>("NetQueryDelayer", create_reference());
-#if TD_ANDROID || TD_DARWIN_IOS || TD_DARWIN_VISION_OS || TD_DARWIN_WATCH_OS || TD_TEST_VERIFICATION
-  verifier_ = create_actor<NetQueryVerifier>("NetQueryVerifier", create_reference());
-#endif
-  dc_auth_manager_ = create_actor_on_scheduler<DcAuthManager>("DcAuthManager", G()->get_main_session_scheduler_id(),
-                                                              create_reference());
-  public_rsa_key_watchdog_ = create_actor<PublicRsaKeyWatchdog>("PublicRsaKeyWatchdog", create_reference());
-  sequence_dispatcher_ = MultiSequenceDispatcher::create("MultiSequenceDispatcher");
-
-  td_guard_ = create_shared_lambda_guard([actor = create_reference()] {});
-}
-
-NetQueryDispatcher::~NetQueryDispatcher() = default;
-
-void NetQueryDispatcher::try_fix_migrate(NetQueryPtr &net_query) {
-  auto error_message = net_query->error().message();
-  static constexpr CSlice prefixes[] = {"PHONE_MIGRATE_", "NETWORK_MIGRATE_", "USER_MIGRATE_"};
-  for (auto &prefix : prefixes) {
-    if (error_message.substr(0, prefix.size()) == prefix) {
-      auto new_main_dc_id = to_integer<int32>(error_message.substr(prefix.size()));
-      set_main_dc_id(new_main_dc_id);
-
-      if (!net_query->dc_id().is_main()) {
-        LOG(ERROR) << "Receive " << error_message << " for query to non-main DC" << net_query->dc_id();
-        net_query->resend(DcId::internal(new_main_dc_id));
-      } else {
-        net_query->resend();
-      }
-      break;
-    }
-  }
-}
-
-void NetQueryDispatcher::set_main_dc_id(int32 new_main_dc_id) {
-  if (!DcId::is_valid(new_main_dc_id)) {
-    LOG(ERROR) << "Receive wrong DC " << new_main_dc_id;
-    return;
-  }
-  if (new_main_dc_id == main_dc_id_.load(std::memory_order_relaxed)) {
-    return;
-  }
-
-  std::lock_guard<std::mutex> guard(mutex_);
-  if (new_main_dc_id == main_dc_id_) {
-    return;
-  }
-
-  LOG(INFO) << "Update main DcId from " << main_dc_id_.load(std::memory_order_relaxed) << " to " << new_main_dc_id;
-  if (is_dc_inited(main_dc_id_.load(std::memory_order_relaxed))) {
-    send_closure_later(dcs_[main_dc_id_ - 1].main_session_, &SessionMultiProxy::update_main_flag, false);
-  }
-  main_dc_id_ = new_main_dc_id;
-  if (is_dc_inited(main_dc_id_.load(std::memory_order_relaxed))) {
-    send_closure_later(dcs_[main_dc_id_ - 1].main_session_, &SessionMultiProxy::update_main_flag, true);
-  }
-  send_closure_later(dc_auth_manager_, &DcAuthManager::update_main_dc,
-                     DcId::internal(main_dc_id_.load(std::memory_order_relaxed)));
-  G()->td_db()->get_binlog_pmc()->set("main_dc_id", to_string(main_dc_id_.load(std::memory_order_relaxed)));
-}
-
-void NetQueryDispatcher::check_authorization_is_ok() {
-  std::lock_guard<std::mutex> guard(mutex_);
-  if (stop_flag_.load(std::memory_order_relaxed)) {
-    return;
-  }
-  send_closure(dc_auth_manager_, &DcAuthManager::check_authorization_is_ok);
-}
-
-void NetQueryDispatcher::set_verification_token(int64 verification_id, string &&token, Promise<Unit> &&promise) {
-  if (verifier_.empty()) {
-    return promise.set_error(Status::Error(400, "Application verification not allowed"));
-  }
-  send_closure_later(verifier_, &NetQueryVerifier::set_verification_token, verification_id, std::move(token),
-                     std::move(promise));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryDispatcher.h b/third-party/td/td/td/telegram/net/NetQueryDispatcher.h
deleted file mode 100644
index 2e6643e8ab..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryDispatcher.h
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Status.h"
-
-#include <array>
-#include <atomic>
-#include <functional>
-#include <memory>
-#include <mutex>
-
-namespace td {
-
-class DcAuthManager;
-class MultiSequenceDispatcher;
-class NetQueryDelayer;
-class NetQueryVerifier;
-class PublicRsaKeyWatchdog;
-class SessionMultiProxy;
-
-// Not just dispatcher.
-class NetQueryDispatcher {
- public:
-  explicit NetQueryDispatcher(const std::function<ActorShared<>()> &create_reference);
-  NetQueryDispatcher(const NetQueryDispatcher &) = delete;
-  NetQueryDispatcher &operator=(const NetQueryDispatcher &) = delete;
-  NetQueryDispatcher(NetQueryDispatcher &&) = delete;
-  NetQueryDispatcher &operator=(NetQueryDispatcher &&) = delete;
-  ~NetQueryDispatcher();
-
-  void dispatch(NetQueryPtr net_query);
-  void dispatch_with_callback(NetQueryPtr net_query, ActorShared<NetQueryCallback> callback);
-  void stop();
-
-  void update_session_count();
-  void destroy_auth_keys(Promise<> promise);
-  void update_use_pfs();
-  void update_mtproto_header();
-
-  DcId get_main_dc_id() const {
-    return DcId::internal(main_dc_id_.load(std::memory_order_relaxed));
-  }
-
-  void set_main_dc_id(int32 new_main_dc_id);
-  void check_authorization_is_ok();
-
-  void set_verification_token(int64 verification_id, string &&token, Promise<Unit> &&promise);
-
- private:
-  std::atomic<bool> stop_flag_{false};
-  bool need_destroy_auth_key_{false};
-  ActorOwn<NetQueryDelayer> delayer_;
-  ActorOwn<NetQueryVerifier> verifier_;
-  ActorOwn<DcAuthManager> dc_auth_manager_;
-  ActorOwn<MultiSequenceDispatcher> sequence_dispatcher_;
-  struct Dc {
-    DcId id_;
-    std::atomic<bool> is_valid_{false};
-    std::atomic<bool> is_inited_{false};  // TODO: cache in scheduler local storage :D
-
-    ActorOwn<SessionMultiProxy> main_session_;
-    ActorOwn<SessionMultiProxy> download_session_;
-    ActorOwn<SessionMultiProxy> download_small_session_;
-    ActorOwn<SessionMultiProxy> upload_session_;
-  };
-  std::array<Dc, DcId::MAX_RAW_DC_ID> dcs_;
-#if TD_EMSCRIPTEN  // FIXME
-  std::atomic<int32> main_dc_id_{2};
-#else
-  std::atomic<int32> main_dc_id_{1};
-#endif
-  ActorOwn<PublicRsaKeyWatchdog> public_rsa_key_watchdog_;
-  std::mutex mutex_;
-  std::shared_ptr<Guard> td_guard_;
-
-  Status wait_dc_init(DcId dc_id, bool force);
-  bool is_dc_inited(int32 raw_dc_id);
-
-  static int32 get_session_count();
-  static bool get_use_pfs();
-
-  static void complete_net_query(NetQueryPtr net_query);
-  bool check_stop_flag(NetQueryPtr &net_query) const;
-
-  void try_fix_migrate(NetQueryPtr &net_query);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryStats.cpp b/third-party/td/td/td/telegram/net/NetQueryStats.cpp
deleted file mode 100644
index e978cb691d..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryStats.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/NetQueryStats.h"
-
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-uint64 NetQueryStats::get_count() const {
-  return count_.load(std::memory_order_relaxed);
-}
-
-void NetQueryStats::dump_pending_network_queries() {
-  auto n = get_count();
-  LOG(WARNING) << tag("pending net queries", n);
-
-  if (!use_list_) {
-    return;
-  }
-  decltype(n) i = 0;
-  bool was_gap = false;
-  auto &net_query_list = list_;
-  auto guard = net_query_list.lock();
-  for (auto begin = net_query_list.begin(), cur = net_query_list.end(); cur != begin; i++) {
-    cur = cur->get_prev();
-    if (i < 20 || i + 20 > n || i % (n / 20 + 1) == 0) {
-      if (was_gap) {
-        LOG(WARNING) << "...";
-        was_gap = false;
-      }
-      const NetQueryDebug &debug = cur->get_data_unsafe();
-      const NetQuery &nq = *static_cast<const NetQuery *>(cur);
-      LOG(WARNING) << tag("user", lpad(PSTRING() << debug.my_id_, 10, ' ')) << nq
-                   << tag("total flood", format::as_time(nq.total_timeout_))
-                   << tag("since start", format::as_time(Time::now_cached() - debug.start_timestamp_))
-                   << tag("state", debug.state_)
-                   << tag("in this state", format::as_time(Time::now_cached() - debug.state_timestamp_))
-                   << tag("state changed", debug.state_change_count_) << tag("resend count", debug.resend_count_)
-                   << tag("fail count", debug.send_failed_count_) << tag("ack state", debug.ack_state_)
-                   << tag("unknown", debug.unknown_state_);
-    } else {
-      was_gap = true;
-    }
-  }
-}
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryStats.h b/third-party/td/td/td/telegram/net/NetQueryStats.h
deleted file mode 100644
index 85dabca0ed..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryStats.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQueryCounter.h"
-
-#include "td/utils/common.h"
-#include "td/utils/TsList.h"
-
-#include <atomic>
-
-namespace td {
-
-struct NetQueryDebug {
-  double start_timestamp_ = 0;
-  int64 my_id_ = 0;
-  int32 resend_count_ = 0;
-  string state_ = "empty";
-  double state_timestamp_ = 0;
-  int32 state_change_count_ = 0;
-  int32 send_failed_count_ = 0;
-  int32 ack_state_ = 0;
-  bool unknown_state_ = false;
-};
-
-class NetQueryStats {
- public:
-  NetQueryCounter register_query(TsListNode<NetQueryDebug> *query) {
-    if (use_list_.load(std::memory_order_relaxed)) {
-      list_.put(query);
-    }
-    return NetQueryCounter(&count_);
-  }
-
-  uint64 get_count() const;
-
-  void dump_pending_network_queries();
-
- private:
-  NetQueryCounter::Counter count_{0};
-  std::atomic<bool> use_list_{true};
-  TsList<NetQueryDebug> list_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryVerifier.cpp b/third-party/td/td/td/telegram/net/NetQueryVerifier.cpp
deleted file mode 100644
index 63ee231920..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryVerifier.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/NetQueryVerifier.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/td_api.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/Storer.h"
-#include "td/utils/utf8.h"
-
-#include <tuple>
-
-namespace td {
-
-void NetQueryVerifier::verify(NetQueryPtr query, string nonce) {
-  CHECK(query->is_ready());
-  CHECK(query->is_error());
-
-  int64 cloud_project_number = 0;
-  auto status = [&] {
-    if (!check_utf8(nonce)) {
-      return Status::Error(400, "Invalid encoding");
-    }
-#if TD_ANDROID
-    string cloud_project_number_str;
-    std::tie(cloud_project_number_str, nonce) = split(nonce, '_');
-    TRY_RESULT_ASSIGN(cloud_project_number, to_integer_safe<int64>(cloud_project_number_str));
-    TRY_RESULT_ASSIGN(nonce, hex_decode(nonce));
-    nonce = base64url_encode(nonce);
-#endif
-    return Status::OK();
-  }();
-  if (status.is_error()) {
-    LOG(ERROR) << "Receive " << status;
-    query->set_error(Status::Error(400, "Invalid verification nonce"));
-    G()->net_query_dispatcher().dispatch(std::move(query));
-    return;
-  }
-
-  auto query_id = next_query_id_++;
-  Query verification_query;
-  verification_query.type_ = Query::Type::Verification;
-  verification_query.nonce_or_action_ = nonce;
-  queries_.emplace(query_id, std::make_pair(std::move(query), std::move(verification_query)));
-
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateApplicationVerificationRequired>(query_id, nonce, cloud_project_number));
-}
-
-void NetQueryVerifier::check_recaptcha(NetQueryPtr query, string action, string recaptcha_key_id) {
-  CHECK(query->is_ready());
-  CHECK(query->is_error());
-
-  if (!check_utf8(action) || !check_utf8(recaptcha_key_id)) {
-    LOG(ERROR) << "Receive invalid reCAPTCHA parameters";
-    query->set_error(Status::Error(400, "Invalid reCAPTCHA parameters"));
-    G()->net_query_dispatcher().dispatch(std::move(query));
-    return;
-  }
-
-  auto query_id = next_query_id_++;
-  Query verification_query;
-  verification_query.type_ = Query::Type::Recaptcha;
-  verification_query.nonce_or_action_ = action;
-  verification_query.recaptcha_key_id_ = recaptcha_key_id;
-  queries_.emplace(query_id, std::make_pair(std::move(query), std::move(verification_query)));
-
-  send_closure(
-      G()->td(), &Td::send_update,
-      td_api::make_object<td_api::updateApplicationRecaptchaVerificationRequired>(query_id, action, recaptcha_key_id));
-}
-
-void NetQueryVerifier::set_verification_token(int64 query_id, string &&token, Promise<Unit> &&promise) {
-  auto it = queries_.find(query_id);
-  if (it == queries_.end()) {
-    return promise.set_error(Status::Error(400, "Verification not found"));
-  }
-  auto query = std::move(it->second.first);
-  auto verification_query = std::move(it->second.second);
-  queries_.erase(it);
-  promise.set_value(Unit());
-
-  if (token.empty()) {
-    query->set_error(Status::Error(400, "VERIFICATION_FAILED"));
-  } else if (verification_query.type_ == Query::Type::Verification) {
-#if TD_ANDROID
-    telegram_api::invokeWithGooglePlayIntegrityPrefix prefix(verification_query.nonce_or_action_, token);
-#else
-    telegram_api::invokeWithApnsSecretPrefix prefix(verification_query.nonce_or_action_, token);
-#endif
-    auto storer = DefaultStorer<telegram_api::Function>(prefix);
-    string prefix_str(storer.size(), '\0');
-    auto real_size = storer.store(MutableSlice(prefix_str).ubegin());
-    CHECK(real_size == prefix_str.size());
-    query->add_verification_prefix(prefix_str);
-    query->resend();
-  } else if (verification_query.type_ == Query::Type::Recaptcha) {
-    telegram_api::invokeWithReCaptchaPrefix prefix(token);
-    auto storer = DefaultStorer<telegram_api::Function>(prefix);
-    string prefix_str(storer.size(), '\0');
-    auto real_size = storer.store(MutableSlice(prefix_str).ubegin());
-    CHECK(real_size == prefix_str.size());
-    query->add_verification_prefix(prefix_str);
-    query->resend();
-  } else {
-    UNREACHABLE();
-  }
-  G()->net_query_dispatcher().dispatch(std::move(query));
-}
-
-void NetQueryVerifier::tear_down() {
-  for (auto &it : queries_) {
-    it.second.first->set_error(Global::request_aborted_error());
-    G()->net_query_dispatcher().dispatch(std::move(it.second.first));
-  }
-  queries_.clear();
-  parent_.reset();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetQueryVerifier.h b/third-party/td/td/td/telegram/net/NetQueryVerifier.h
deleted file mode 100644
index 8040994062..0000000000
--- a/third-party/td/td/td/telegram/net/NetQueryVerifier.h
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-
-#include <utility>
-
-namespace td {
-
-class NetQueryVerifier final : public Actor {
- public:
-  explicit NetQueryVerifier(ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-
-  void verify(NetQueryPtr query, string nonce);
-
-  void check_recaptcha(NetQueryPtr query, string action, string recaptcha_key_id);
-
-  void set_verification_token(int64 query_id, string &&token, Promise<Unit> &&promise);
-
- private:
-  void tear_down() final;
-
-  ActorShared<> parent_;
-
-  struct Query {
-    enum class Type : int32 { Verification, Recaptcha };
-    Type type_ = Type::Verification;
-    string nonce_or_action_;
-    string recaptcha_key_id_;
-  };
-
-  FlatHashMap<int64, std::pair<NetQueryPtr, Query>> queries_;
-  int64 next_query_id_ = 1;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetStatsManager.cpp b/third-party/td/td/td/telegram/net/NetStatsManager.cpp
deleted file mode 100644
index 32db4c5534..0000000000
--- a/third-party/td/td/td/telegram/net/NetStatsManager.cpp
+++ /dev/null
@@ -1,344 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/NetStatsManager.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/Version.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-template <class StorerT>
-static void store(const NetStatsData &net_stats, StorerT &storer) {
-  using ::td::store;
-  store(net_stats.read_size, storer);
-  store(net_stats.write_size, storer);
-  store(net_stats.count, storer);
-  store(net_stats.duration, storer);
-}
-
-template <class ParserT>
-static void parse(NetStatsData &net_stats, ParserT &parser) {
-  using ::td::parse;
-  parse(net_stats.read_size, parser);
-  parse(net_stats.write_size, parser);
-
-  if (parser.version() >= static_cast<int32>(Version::NetStatsCountDuration)) {
-    parse(net_stats.count, parser);
-    parse(net_stats.duration, parser);
-  }
-}
-
-void NetStatsManager::init() {
-  LOG_CHECK(!empty()) << G()->close_flag();
-  class NetStatsInternalCallback final : public NetStats::Callback {
-   public:
-    NetStatsInternalCallback(ActorId<NetStatsManager> parent, size_t id) : parent_(std::move(parent)), id_(id) {
-    }
-
-   private:
-    ActorId<NetStatsManager> parent_;
-    size_t id_;
-    void on_stats_updated() final {
-      send_closure(parent_, &NetStatsManager::on_stats_updated, id_);
-    }
-  };
-
-  for_each_stat([&](NetStatsInfo &stat, size_t id, CSlice name, FileType file_type) {
-    auto main_file_type = get_main_file_type(file_type);
-    id += static_cast<size_t>(main_file_type) - static_cast<size_t>(file_type);
-
-    stat.key = "net_stats_" + name.str();
-    stat.stats.set_callback(make_unique<NetStatsInternalCallback>(actor_id(this), id));
-  });
-}
-
-void NetStatsManager::get_network_stats(bool current, Promise<NetworkStats> promise) {
-  NetworkStats result;
-
-  result.since = current ? since_current_ : since_total_;
-
-  for_each_stat([&](NetStatsInfo &info, size_t id, CSlice name, FileType file_type) { update(info, false); });
-
-  for (size_t net_type_i = 0; net_type_i < net_type_size(); net_type_i++) {
-    auto net_type = NetType(net_type_i);
-    NetStatsData total;
-    NetStatsData total_files;
-
-    for_each_stat([&](NetStatsInfo &info, size_t id, CSlice name, FileType file_type) {
-      const auto &type_stats = info.stats_by_type[net_type_i];
-      auto stats = current ? type_stats.mem_stats : type_stats.mem_stats + type_stats.db_stats;
-      if (id == 0) {
-      } else if (id == 1) {
-        total = stats;
-      } else if (id == CALL_NET_STATS_ID) {
-      } else if (file_type != FileType::None) {
-        total_files = total_files + stats;
-      }
-    });
-
-    NetStatsData check;
-    for_each_stat([&](NetStatsInfo &info, size_t id, CSlice name, FileType file_type) {
-      if (id == 1) {
-        return;
-      }
-      const auto &type_stats = info.stats_by_type[net_type_i];
-      auto stats = current ? type_stats.mem_stats : type_stats.mem_stats + type_stats.db_stats;
-
-      NetworkStatsEntry entry;
-      entry.file_type = file_type;
-      entry.net_type = net_type;
-      entry.rx = stats.read_size;
-      entry.tx = stats.write_size;
-      entry.count = stats.count;
-      entry.duration = stats.duration;
-      if (id == 0) {
-        result.entries.push_back(std::move(entry));
-      } else if (id == CALL_NET_STATS_ID) {
-        entry.is_call = true;
-        result.entries.push_back(std::move(entry));
-      } else if (file_type != FileType::None) {
-        if (get_main_file_type(file_type) != file_type) {
-          return;
-        }
-
-        if (total_files.read_size != 0) {
-          entry.rx = static_cast<int64>(static_cast<double>(total.read_size) *
-                                        (static_cast<double>(entry.rx) / static_cast<double>(total_files.read_size)));
-        } else {
-          // entry.rx += total.read_size / MAX_FILE_TYPE;
-        }
-
-        if (total_files.write_size != 0) {
-          entry.tx = static_cast<int64>(static_cast<double>(total.write_size) *
-                                        (static_cast<double>(entry.tx) / static_cast<double>(total_files.write_size)));
-        } else {
-          // entry.tx += total.write_size / MAX_FILE_TYPE;
-        }
-        check.read_size += entry.rx;
-        check.write_size += entry.tx;
-        result.entries.push_back(std::move(entry));
-      }
-    });
-    // LOG(ERROR) << total.read_size << " " << check.read_size;
-    // LOG(ERROR) << total.write_size << " " << check.write_size;
-  }
-
-  promise.set_value(std::move(result));
-}
-
-void NetStatsManager::reset_network_stats() {
-  auto do_reset_network_stats = [&](auto &info) {
-    info.last_sync_stats = info.stats.get_stats();
-    for (size_t net_type_i = 0; net_type_i < net_type_size(); net_type_i++) {
-      auto net_type = NetType(net_type_i);
-      info.stats_by_type[net_type_i] = NetStatsInfo::TypeStats{};
-      auto key = PSTRING() << info.key << '#' << net_type_string(net_type);
-      G()->td_db()->get_binlog_pmc()->erase(key);
-    }
-  };
-
-  for_each_stat([&](NetStatsInfo &info, size_t id, CSlice name, FileType) { do_reset_network_stats(info); });
-
-  auto unix_time = G()->unix_time();
-  since_total_ = unix_time;
-  since_current_ = unix_time;
-  G()->td_db()->get_binlog_pmc()->set("net_stats_since", to_string(unix_time));
-}
-
-void NetStatsManager::add_network_stats(const NetworkStatsEntry &entry) {
-  if (entry.is_call) {
-    return add_network_stats_impl(call_net_stats_, entry);
-  }
-  if (entry.file_type == FileType::None) {
-    return add_network_stats_impl(common_net_stats_, entry);
-  }
-  add_network_stats_impl(media_net_stats_, entry);
-  auto file_type_n = static_cast<size_t>(entry.file_type);
-  CHECK(file_type_n < static_cast<size_t>(MAX_FILE_TYPE));
-  add_network_stats_impl(files_stats_[file_type_n], entry);
-}
-
-void NetStatsManager::add_network_stats_impl(NetStatsInfo &info, const NetworkStatsEntry &entry) {
-  auto net_type_i = static_cast<size_t>(entry.net_type);
-  auto &data = info.stats_by_type[net_type_i].mem_stats;
-
-  if (data.read_size + entry.rx < data.read_size || data.write_size + entry.tx < data.write_size ||
-      data.count + entry.count < data.count) {
-    LOG(ERROR) << "Network stats overflow";
-    return;
-  }
-
-  data.read_size += entry.rx;
-  data.write_size += entry.tx;
-  data.count += entry.count;
-  data.duration += entry.duration;
-  save_stats(info, entry.net_type);
-}
-
-void NetStatsManager::start_up() {
-  for_each_stat([&](NetStatsInfo &info, size_t id, CSlice name, FileType file_type) {
-    if (get_main_file_type(file_type) != file_type) {
-      return;
-    }
-
-    for (size_t net_type_i = 0; net_type_i < net_type_size(); net_type_i++) {
-      auto net_type = NetType(net_type_i);
-      auto key = PSTRING() << info.key << '#' << net_type_string(net_type);
-
-      auto value = G()->td_db()->get_binlog_pmc()->get(key);
-      if (value.empty()) {
-        continue;
-      }
-      log_event_parse(info.stats_by_type[net_type_i].db_stats, value).ensure();
-    }
-  });
-  auto unix_time = G()->unix_time();
-  since_total_ = 0;
-  since_current_ = unix_time;
-  auto since_str = G()->td_db()->get_binlog_pmc()->get("net_stats_since");
-  if (!since_str.empty()) {
-    auto since = to_integer<int32>(since_str);
-    auto authorization_date = G()->get_option_integer("authorization_date");
-    if (unix_time < since) {
-      since_total_ = unix_time;
-      G()->td_db()->get_binlog_pmc()->set("net_stats_since", to_string(since_total_));
-    } else if (since < authorization_date - 3600) {
-      since_total_ = narrow_cast<int32>(authorization_date);
-      G()->td_db()->get_binlog_pmc()->set("net_stats_since", to_string(since_total_));
-    } else {
-      since_total_ = since;
-    }
-  } else {
-    // approximate since_total by first run date for new users
-    since_total_ = unix_time;
-    G()->td_db()->get_binlog_pmc()->set("net_stats_since", to_string(since_total_));
-  }
-
-  class NetCallback final : public StateManager::Callback {
-   public:
-    explicit NetCallback(ActorId<NetStatsManager> net_stats_manager)
-        : net_stats_manager_(std::move(net_stats_manager)) {
-    }
-    bool on_network(NetType network_type, uint32 network_generation) final {
-      send_closure(net_stats_manager_, &NetStatsManager::on_net_type_updated, network_type);
-      return net_stats_manager_.is_alive();
-    }
-
-   private:
-    ActorId<NetStatsManager> net_stats_manager_;
-  };
-  send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<NetCallback>(actor_id(this)));
-}
-
-std::shared_ptr<NetStatsCallback> NetStatsManager::get_common_stats_callback() const {
-  return common_net_stats_.stats.get_callback();
-}
-
-std::shared_ptr<NetStatsCallback> NetStatsManager::get_media_stats_callback() const {
-  return media_net_stats_.stats.get_callback();
-}
-
-std::vector<std::shared_ptr<NetStatsCallback>> NetStatsManager::get_file_stats_callbacks() const {
-  auto result = transform(files_stats_, [](auto &stat) { return stat.stats.get_callback(); });
-  for (int32 i = 0; i < MAX_FILE_TYPE; i++) {
-    auto main_file_type = static_cast<int32>(get_main_file_type(static_cast<FileType>(i)));
-    if (main_file_type != i) {
-      result[i] = result[main_file_type];
-    }
-  }
-  return result;
-}
-
-void NetStatsManager::update(NetStatsInfo &info, bool force_save) {
-  if (info.net_type == NetType::None) {
-    return;
-  }
-  auto current_stats = info.stats.get_stats();
-  auto diff = current_stats - info.last_sync_stats;
-
-  auto net_type_i = static_cast<size_t>(info.net_type);
-  auto &type_stats = info.stats_by_type[net_type_i];
-
-  info.last_sync_stats = current_stats;
-
-  auto mem_stats = type_stats.mem_stats + diff;
-  type_stats.mem_stats = mem_stats;
-  type_stats.dirty_size += diff.read_size + diff.write_size;
-
-  if (type_stats.dirty_size < 1000 && !force_save) {
-    return;
-  }
-
-  type_stats.dirty_size = 0;
-
-  save_stats(info, info.net_type);
-}
-
-void NetStatsManager::save_stats(NetStatsInfo &info, NetType net_type) {
-  if (G()->get_option_boolean("disable_persistent_network_statistics")) {
-    return;
-  }
-
-  auto net_type_i = static_cast<size_t>(net_type);
-  auto &type_stats = info.stats_by_type[net_type_i];
-
-  auto key = PSTRING() << info.key << '#' << net_type_string(info.net_type);
-  auto stats = type_stats.mem_stats + type_stats.db_stats;
-  // LOG(ERROR) << "SAVE " << key << ' ' << stats;
-
-  G()->td_db()->get_binlog_pmc()->set(key, log_event_store(stats).as_slice().str());
-}
-
-void NetStatsManager::info_loop(NetStatsInfo &info) {
-  if (info.net_type == NetType::None) {
-    return;
-  }
-  auto mem_stats = info.stats.get_stats();
-  auto diff = mem_stats - info.last_sync_stats;
-  auto size = diff.read_size + diff.write_size;
-  if (size < 1000) {
-    return;
-  }
-  update(info, false);
-}
-
-void NetStatsManager::on_stats_updated(size_t id) {
-  for_each_stat([&](NetStatsInfo &stat, size_t stat_id, CSlice name, FileType) {
-    if (stat_id == id) {
-      info_loop(stat);
-    }
-  });
-}
-
-void NetStatsManager::on_net_type_updated(NetType net_type) {
-  if (net_type == NetType::Unknown) {
-    net_type = NetType::None;
-  }
-  auto do_on_net_type_updated = [&](NetStatsInfo &info) {  // g++ 4.9-6.2 crashes if (auto &info) is used
-    if (info.net_type == net_type) {
-      return;
-    }
-    if (info.net_type != NetType::None) {
-      update(info, true);
-    }
-    info.net_type = net_type;
-  };
-
-  for_each_stat([&](NetStatsInfo &stat, size_t stat_id, CSlice name, FileType) { do_on_net_type_updated(stat); });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/NetStatsManager.h b/third-party/td/td/td/telegram/net/NetStatsManager.h
deleted file mode 100644
index fe2c629b31..0000000000
--- a/third-party/td/td/td/telegram/net/NetStatsManager.h
+++ /dev/null
@@ -1,209 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/files/FileType.h"
-#include "td/telegram/net/NetType.h"
-#include "td/telegram/td_api.h"
-
-#include "td/net/NetStats.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-
-#include <array>
-#include <memory>
-
-namespace td {
-
-struct NetworkStatsEntry {
-  FileType file_type{FileType::None};
-
-  NetType net_type{NetType::Other};
-  int64 rx{0};
-  int64 tx{0};
-
-  bool is_call{false};
-  int64 count{0};
-  double duration{0};
-
-  tl_object_ptr<td_api::NetworkStatisticsEntry> get_network_statistics_entry_object() const {
-    if (is_call) {
-      return make_tl_object<td_api::networkStatisticsEntryCall>(get_network_type_object(net_type), tx, rx, duration);
-    } else {
-      return make_tl_object<td_api::networkStatisticsEntryFile>(get_file_type_object(file_type),
-                                                                get_network_type_object(net_type), tx, rx);
-    }
-  }
-};
-
-struct NetworkStats {
-  int32 since = 0;
-  std::vector<NetworkStatsEntry> entries;
-
-  auto get_network_statistics_object() const {
-    auto result = make_tl_object<td_api::networkStatistics>();
-    result->since_date_ = since;
-    result->entries_.reserve(entries.size());
-    for (const auto &entry : entries) {
-      if ((entry.rx != 0 || entry.tx != 0) && entry.file_type != FileType::SecureDecrypted) {
-        result->entries_.push_back(entry.get_network_statistics_entry_object());
-      }
-    }
-    return result;
-  }
-};
-
-class NetStatsManager final : public Actor {
- public:
-  explicit NetStatsManager(ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-  // Call init just after actor is registered and before getting callbacks
-  void init();
-  std::shared_ptr<NetStatsCallback> get_common_stats_callback() const;
-  std::shared_ptr<NetStatsCallback> get_media_stats_callback() const;
-  std::vector<std::shared_ptr<NetStatsCallback>> get_file_stats_callbacks() const;
-
-  void get_network_stats(bool current, Promise<NetworkStats> promise);
-
-  void reset_network_stats();
-
-  void add_network_stats(const NetworkStatsEntry &entry);
-
- private:
-  ActorShared<> parent_;
-
-  static constexpr size_t net_type_size() {
-    return static_cast<size_t>(NetType::Size);
-  }
-
-  static CSlice net_type_string(NetType type) {
-    switch (type) {
-      case NetType::Other:
-        return CSlice("other");
-      case NetType::WiFi:
-        return CSlice("wifi");
-      case NetType::Mobile:
-        return CSlice("mobile");
-      case NetType::MobileRoaming:
-        return CSlice("mobile_roaming");
-      default:
-        return CSlice("bug");
-    }
-  }
-
-  struct NetStatsInfo {
-    string key;
-    NetStats stats;
-    NetStatsData last_sync_stats;
-    NetType net_type = NetType::None;
-
-    struct TypeStats {
-      uint64 dirty_size = 0;
-      NetStatsData mem_stats;
-      NetStatsData db_stats;
-    };
-    std::array<TypeStats, 5 /*NetStatsManager::net_type_size()*/> stats_by_type;
-  };
-
-  int32 since_total_{0};
-  int32 since_current_{0};
-  NetStatsInfo common_net_stats_;
-  NetStatsInfo media_net_stats_;
-  std::array<NetStatsInfo, MAX_FILE_TYPE> files_stats_;
-  NetStatsInfo call_net_stats_;
-  static constexpr int32 CALL_NET_STATS_ID{MAX_FILE_TYPE + 2};
-
-  template <class F>
-  void for_each_stat(F &&f) {
-    f(common_net_stats_, 0, CSlice("common"), FileType::None);
-    f(media_net_stats_, 1, CSlice("media"), FileType::None);
-    for (int32 file_type_i = 0; file_type_i < MAX_FILE_TYPE; file_type_i++) {
-      auto &stat = files_stats_[file_type_i];
-      auto file_type = static_cast<FileType>(file_type_i);
-      f(stat, file_type_i + 2, get_file_type_unique_name(file_type), file_type);
-    }
-    f(call_net_stats_, CALL_NET_STATS_ID, CSlice("calls"), FileType::None);
-  }
-
-  static void add_network_stats_impl(NetStatsInfo &info, const NetworkStatsEntry &entry);
-
-  void start_up() final;
-
-  static void update(NetStatsInfo &info, bool force_save);
-  static void save_stats(NetStatsInfo &info, NetType net_type);
-  static void info_loop(NetStatsInfo &info);
-
-  void on_stats_updated(size_t id);
-  void on_net_type_updated(NetType net_type);
-};
-
-}  // namespace td
-
-/*
-
-networkTypeBluetooth = NetworkType; ?
-networkTypeEthernet = NetworkType;  ?
-
-Android NetType.
-TYPE_BLUETOOTH The Bluetooth data connection.
-TYPE_DUMMY Dummy data connection.
-TYPE_ETHERNET The Ethernet data connection.
-TYPE_MOBILE The Mobile data connection.
-TYPE_MOBILE_DUN A DUN-specific Mobile data connection.
-TYPE_VPN A virtual network using one or more native bearers.
-TYPE_WIFI The WIFI data connection.
-TYPE_WIMAX The WiMAX data connection.
-
-ios NetType
-ReachableViaWiFi,
-ReachableViaWWAN
-
-
-Mobile subtype
-2G
-NETWORK_TYPE_IDEN  ~25 kbps
-NETWORK_TYPE_CDMA  ~ 14-64 kbps
-CTRadioAccessTechnologyCDMA1x
-NETWORK_TYPE_1xRTT  ~ 50-100 kbps
-NETWORK_TYPE_GPRS  ~ 100 kbps
-CTRadioAccessTechnologyEdge
-NETWORK_TYPE_EDGE  ~ 50-100 kbps
-CTRadioAccessTechnologyGPRS
-
-3G
-NETWORK_TYPE_EVDO_0  ~ 400-1000 kbps
-CTRadioAccessTechnologyCDMAEVDORev0
-NETWORK_TYPE_EVDO_A  ~ 600-1400 kbps
-CTRadioAccessTechnologyCDMAEVDORevA
-NETWORK_TYPE_HSPA  ~ 700-1700 kbps
-NETWORK_TYPE_UMTS  ~ 400-7000 kbps
-NETWORK_TYPE_EHRPD  ~ 1-2 Mbps
-NETWORK_TYPE_EVDO_B  ~ 5 Mbps
-CTRadioAccessTechnologyCDMAEVDORevB
-NETWORK_TYPE_HSDPA  ~ 2-14 Mbps
-CTRadioAccessTechnologyHSDPA
-NETWORK_TYPE_HSPAP  ~ 10-20 Mbps
-NETWORK_TYPE_HSUPA  ~ 1-23 Mbps
-CTRadioAccessTechnologyHSUPA
-
-CTRadioAccessTechnologyWCDMA
-CTRadioAccessTechnologyeHRPD
-
-4G
-NETWORK_TYPE_LTE  ~ 10+ Mbps
-CTRadioAccessTechnologyLTE
-
-NETWORK_TYPE_GSM
-NETWORK_TYPE_IWLAN
-NETWORK_TYPE_TD_SCDMA
-NETWORK_TYPE_UNKNOWN
-
-*/
diff --git a/third-party/td/td/td/telegram/net/NetType.h b/third-party/td/td/td/telegram/net/NetType.h
deleted file mode 100644
index 3c85c2d1a3..0000000000
--- a/third-party/td/td/td/telegram/net/NetType.h
+++ /dev/null
@@ -1,53 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-enum class NetType : int8 { Other, WiFi, Mobile, MobileRoaming, Size, None, Unknown };
-
-inline NetType get_net_type(const tl_object_ptr<td_api::NetworkType> &net_type) {
-  if (net_type == nullptr) {
-    return NetType::Other;
-  }
-
-  switch (net_type->get_id()) {
-    case td_api::networkTypeOther::ID:
-      return NetType::Other;
-    case td_api::networkTypeWiFi::ID:
-      return NetType::WiFi;
-    case td_api::networkTypeMobile::ID:
-      return NetType::Mobile;
-    case td_api::networkTypeMobileRoaming::ID:
-      return NetType::MobileRoaming;
-    case td_api::networkTypeNone::ID:
-      return NetType::None;
-    default:
-      UNREACHABLE();
-  }
-}
-
-inline tl_object_ptr<td_api::NetworkType> get_network_type_object(NetType net_type) {
-  switch (net_type) {
-    case NetType::Other:
-      return make_tl_object<td_api::networkTypeOther>();
-    case NetType::WiFi:
-      return make_tl_object<td_api::networkTypeWiFi>();
-    case NetType::Mobile:
-      return make_tl_object<td_api::networkTypeMobile>();
-    case NetType::MobileRoaming:
-      return make_tl_object<td_api::networkTypeMobileRoaming>();
-    default:
-      UNREACHABLE();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/Proxy.cpp b/third-party/td/td/td/telegram/net/Proxy.cpp
deleted file mode 100644
index b895a804d0..0000000000
--- a/third-party/td/td/td/telegram/net/Proxy.cpp
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/Proxy.h"
-
-#include "td/telegram/td_api.h"
-
-namespace td {
-
-Result<Proxy> Proxy::create_proxy(string server, int port, const td_api::ProxyType *proxy_type) {
-  if (proxy_type == nullptr) {
-    return Status::Error(400, "Proxy type must be non-empty");
-  }
-  if (server.empty()) {
-    return Status::Error(400, "Server name must be non-empty");
-  }
-  if (server.size() > 255) {
-    return Status::Error(400, "Server name is too long");
-  }
-  if (port <= 0 || port > 65535) {
-    return Status::Error(400, "Wrong port number");
-  }
-
-  switch (proxy_type->get_id()) {
-    case td_api::proxyTypeSocks5::ID: {
-      auto type = static_cast<const td_api::proxyTypeSocks5 *>(proxy_type);
-      return Proxy::socks5(std::move(server), port, type->username_, type->password_);
-    }
-    case td_api::proxyTypeHttp::ID: {
-      auto type = static_cast<const td_api::proxyTypeHttp *>(proxy_type);
-      if (type->http_only_) {
-        return Proxy::http_caching(std::move(server), port, type->username_, type->password_);
-      } else {
-        return Proxy::http_tcp(std::move(server), port, type->username_, type->password_);
-      }
-    }
-    case td_api::proxyTypeMtproto::ID: {
-      auto type = static_cast<const td_api::proxyTypeMtproto *>(proxy_type);
-      TRY_RESULT(secret, mtproto::ProxySecret::from_link(type->secret_));
-      return Proxy::mtproto(std::move(server), port, std::move(secret));
-    }
-    default:
-      UNREACHABLE();
-      return Status::Error(400, "Wrong proxy type");
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Proxy &proxy) {
-  switch (proxy.type()) {
-    case Proxy::Type::Socks5:
-      return string_builder << "ProxySocks5 " << proxy.server() << ":" << proxy.port();
-    case Proxy::Type::HttpTcp:
-      return string_builder << "ProxyHttpTcp " << proxy.server() << ":" << proxy.port();
-    case Proxy::Type::HttpCaching:
-      return string_builder << "ProxyHttpCaching " << proxy.server() << ":" << proxy.port();
-    case Proxy::Type::Mtproto:
-      return string_builder << "ProxyMtproto " << proxy.server() << ":" << proxy.port() << "/"
-                            << proxy.secret().get_encoded_secret();
-    case Proxy::Type::None:
-      return string_builder << "ProxyEmpty";
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/Proxy.h b/third-party/td/td/td/telegram/net/Proxy.h
deleted file mode 100644
index 34d8f3b7d0..0000000000
--- a/third-party/td/td/td/telegram/net/Proxy.h
+++ /dev/null
@@ -1,163 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/ProxySecret.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_helpers.h"
-
-namespace td {
-
-namespace td_api {
-class ProxyType;
-}  // namespace td_api
-
-class Proxy {
- public:
-  static Result<Proxy> create_proxy(string server, int port, const td_api::ProxyType *proxy_type);
-
-  static Proxy socks5(string server, int32 port, string user, string password) {
-    Proxy proxy;
-    proxy.type_ = Type::Socks5;
-    proxy.server_ = std::move(server);
-    proxy.port_ = port;
-    proxy.user_ = std::move(user);
-    proxy.password_ = std::move(password);
-    return proxy;
-  }
-
-  static Proxy http_tcp(string server, int32 port, string user, string password) {
-    Proxy proxy;
-    proxy.type_ = Type::HttpTcp;
-    proxy.server_ = std::move(server);
-    proxy.port_ = port;
-    proxy.user_ = std::move(user);
-    proxy.password_ = std::move(password);
-    return proxy;
-  }
-
-  static Proxy http_caching(string server, int32 port, string user, string password) {
-    Proxy proxy;
-    proxy.type_ = Type::HttpCaching;
-    proxy.server_ = std::move(server);
-    proxy.port_ = port;
-    proxy.user_ = std::move(user);
-    proxy.password_ = std::move(password);
-    return proxy;
-  }
-
-  static Proxy mtproto(string server, int32 port, mtproto::ProxySecret secret) {
-    Proxy proxy;
-    proxy.type_ = Type::Mtproto;
-    proxy.server_ = std::move(server);
-    proxy.port_ = port;
-    proxy.secret_ = std::move(secret);
-    return proxy;
-  }
-
-  CSlice server() const {
-    return server_;
-  }
-
-  int32 port() const {
-    return port_;
-  }
-
-  CSlice user() const {
-    return user_;
-  }
-
-  CSlice password() const {
-    return password_;
-  }
-
-  const mtproto::ProxySecret &secret() const {
-    return secret_;
-  }
-
-  enum class Type : int32 { None, Socks5, Mtproto, HttpTcp, HttpCaching };
-  Type type() const {
-    return type_;
-  }
-
-  bool use_proxy() const {
-    return type() != Proxy::Type::None;
-  }
-  bool use_socks5_proxy() const {
-    return type() == Proxy::Type::Socks5;
-  }
-  bool use_mtproto_proxy() const {
-    return type() == Proxy::Type::Mtproto;
-  }
-  bool use_http_tcp_proxy() const {
-    return type() == Proxy::Type::HttpTcp;
-  }
-  bool use_http_caching_proxy() const {
-    return type() == Proxy::Type::HttpCaching;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    store(type_, storer);
-    if (type_ == Proxy::Type::Socks5 || type_ == Proxy::Type::HttpTcp || type_ == Proxy::Type::HttpCaching) {
-      store(server_, storer);
-      store(port_, storer);
-      store(user_, storer);
-      store(password_, storer);
-    } else if (type_ == Proxy::Type::Mtproto) {
-      store(server_, storer);
-      store(port_, storer);
-      store(secret_.get_encoded_secret(), storer);
-    } else {
-      CHECK(type_ == Proxy::Type::None);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    parse(type_, parser);
-    if (type_ == Proxy::Type::Socks5 || type_ == Proxy::Type::HttpTcp || type_ == Proxy::Type::HttpCaching) {
-      parse(server_, parser);
-      parse(port_, parser);
-      parse(user_, parser);
-      parse(password_, parser);
-    } else if (type_ == Proxy::Type::Mtproto) {
-      parse(server_, parser);
-      parse(port_, parser);
-      secret_ = mtproto::ProxySecret::from_link(parser.template fetch_string<Slice>(), true).move_as_ok();
-    } else {
-      CHECK(type_ == Proxy::Type::None);
-    }
-  }
-
- private:
-  Type type_{Type::None};
-  string server_;
-  int32 port_ = 0;
-  string user_;
-  string password_;
-  mtproto::ProxySecret secret_;
-};
-
-inline bool operator==(const Proxy &lhs, const Proxy &rhs) {
-  return lhs.type() == rhs.type() && lhs.server() == rhs.server() && lhs.port() == rhs.port() &&
-         lhs.user() == rhs.user() && lhs.password() == rhs.password() && lhs.secret() == rhs.secret();
-}
-
-inline bool operator!=(const Proxy &lhs, const Proxy &rhs) {
-  return !(lhs == rhs);
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Proxy &proxy);
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/PublicRsaKeySharedCdn.cpp b/third-party/td/td/td/telegram/net/PublicRsaKeySharedCdn.cpp
deleted file mode 100644
index f64d10c84c..0000000000
--- a/third-party/td/td/td/telegram/net/PublicRsaKeySharedCdn.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/PublicRsaKeySharedCdn.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <algorithm>
-
-namespace td {
-
-PublicRsaKeySharedCdn::PublicRsaKeySharedCdn(DcId dc_id) : dc_id_(dc_id) {
-  CHECK(!dc_id_.is_empty());
-  CHECK(!dc_id_.is_internal());
-}
-
-void PublicRsaKeySharedCdn::add_rsa(mtproto::RSA rsa) {
-  auto lock = rw_mutex_.lock_write();
-  auto fingerprint = rsa.get_fingerprint();
-  if (get_rsa_key_unsafe(fingerprint) != nullptr) {
-    return;
-  }
-  keys_.push_back(RsaKey{std::move(rsa), fingerprint});
-}
-
-Result<mtproto::PublicRsaKeyInterface::RsaKey> PublicRsaKeySharedCdn::get_rsa_key(const vector<int64> &fingerprints) {
-  auto lock = rw_mutex_.lock_read();
-  for (auto fingerprint : fingerprints) {
-    auto *rsa_key = get_rsa_key_unsafe(fingerprint);
-    if (rsa_key != nullptr) {
-      return RsaKey{rsa_key->rsa.clone(), fingerprint};
-    }
-  }
-  return Status::Error(PSLICE() << "Unknown CDN fingerprints " << fingerprints);
-}
-
-void PublicRsaKeySharedCdn::drop_keys() {
-  LOG(INFO) << "Drop " << keys_.size() << " keys for " << dc_id_;
-  auto lock = rw_mutex_.lock_write();
-  keys_.clear();
-  notify();
-}
-
-bool PublicRsaKeySharedCdn::has_keys() {
-  auto lock = rw_mutex_.lock_read();
-  return !keys_.empty();
-}
-
-void PublicRsaKeySharedCdn::add_listener(unique_ptr<Listener> listener) {
-  if (listener->notify()) {
-    auto lock = rw_mutex_.lock_write();
-    listeners_.push_back(std::move(listener));
-  }
-}
-
-mtproto::PublicRsaKeyInterface::RsaKey *PublicRsaKeySharedCdn::get_rsa_key_unsafe(int64 fingerprint) {
-  auto it = std::find_if(keys_.begin(), keys_.end(),
-                         [fingerprint](const auto &value) { return value.fingerprint == fingerprint; });
-  if (it == keys_.end()) {
-    return nullptr;
-  }
-  return &*it;
-}
-
-void PublicRsaKeySharedCdn::notify() {
-  td::remove_if(listeners_, [&](auto &listener) { return !listener->notify(); });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/PublicRsaKeySharedCdn.h b/third-party/td/td/td/telegram/net/PublicRsaKeySharedCdn.h
deleted file mode 100644
index f87b68b367..0000000000
--- a/third-party/td/td/td/telegram/net/PublicRsaKeySharedCdn.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/DcId.h"
-
-#include "td/mtproto/RSA.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/RwMutex.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class PublicRsaKeySharedCdn final : public mtproto::PublicRsaKeyInterface {
- public:
-  explicit PublicRsaKeySharedCdn(DcId dc_id);
-
-  class Listener {
-   public:
-    Listener() = default;
-    Listener(const Listener &) = delete;
-    Listener &operator=(const Listener &) = delete;
-    Listener(Listener &&) = delete;
-    Listener &operator=(Listener &&) = delete;
-    virtual ~Listener() = default;
-    virtual bool notify() = 0;
-  };
-
-  void add_rsa(mtproto::RSA rsa);
-
-  Result<RsaKey> get_rsa_key(const vector<int64> &fingerprints) final;
-
-  void drop_keys() final;
-
-  bool has_keys();
-
-  void add_listener(unique_ptr<Listener> listener);
-
-  DcId dc_id() const {
-    return dc_id_;
-  }
-
- private:
-  DcId dc_id_;
-  vector<RsaKey> keys_;
-  vector<unique_ptr<Listener>> listeners_;
-  RwMutex rw_mutex_;
-
-  RsaKey *get_rsa_key_unsafe(int64 fingerprint);
-
-  void notify();
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/PublicRsaKeySharedMain.cpp b/third-party/td/td/td/telegram/net/PublicRsaKeySharedMain.cpp
deleted file mode 100644
index 91b6b82ba8..0000000000
--- a/third-party/td/td/td/telegram/net/PublicRsaKeySharedMain.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/PublicRsaKeySharedMain.h"
-
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-std::shared_ptr<PublicRsaKeySharedMain> PublicRsaKeySharedMain::create(bool is_test) {
-  auto add_pem = [](vector<RsaKey> &keys, CSlice pem) {
-    auto rsa = mtproto::RSA::from_pem_public_key(pem).move_as_ok();
-    auto fingerprint = rsa.get_fingerprint();
-    keys.push_back(RsaKey{std::move(rsa), fingerprint});
-  };
-
-  if (is_test) {
-    static auto test_public_rsa_key = [&] {
-      vector<RsaKey> keys;
-      add_pem(keys,
-              "-----BEGIN RSA PUBLIC KEY-----\n"
-              "MIIBCgKCAQEAyMEdY1aR+sCR3ZSJrtztKTKqigvO/vBfqACJLZtS7QMgCGXJ6XIR\n"
-              "yy7mx66W0/sOFa7/1mAZtEoIokDP3ShoqF4fVNb6XeqgQfaUHd8wJpDWHcR2OFwv\n"
-              "plUUI1PLTktZ9uW2WE23b+ixNwJjJGwBDJPQEQFBE+vfmH0JP503wr5INS1poWg/\n"
-              "j25sIWeYPHYeOrFp/eXaqhISP6G+q2IeTaWTXpwZj4LzXq5YOpk4bYEQ6mvRq7D1\n"
-              "aHWfYmlEGepfaYR8Q0YqvvhYtMte3ITnuSJs171+GDqpdKcSwHnd6FudwGO4pcCO\n"
-              "j4WcDuXc2CTHgH8gFTNhp/Y8/SpDOhvn9QIDAQAB\n"
-              "-----END RSA PUBLIC KEY-----");
-      return std::make_shared<PublicRsaKeySharedMain>(std::move(keys));
-    }();
-    return test_public_rsa_key;
-  } else {
-    static auto main_public_rsa_key = [&] {
-      vector<RsaKey> keys;
-      add_pem(keys,
-              "-----BEGIN RSA PUBLIC KEY-----\n"
-              "MIIBCgKCAQEA6LszBcC1LGzyr992NzE0ieY+BSaOW622Aa9Bd4ZHLl+TuFQ4lo4g\n"
-              "5nKaMBwK/BIb9xUfg0Q29/2mgIR6Zr9krM7HjuIcCzFvDtr+L0GQjae9H0pRB2OO\n"
-              "62cECs5HKhT5DZ98K33vmWiLowc621dQuwKWSQKjWf50XYFw42h21P2KXUGyp2y/\n"
-              "+aEyZ+uVgLLQbRA1dEjSDZ2iGRy12Mk5gpYc397aYp438fsJoHIgJ2lgMv5h7WY9\n"
-              "t6N/byY9Nw9p21Og3AoXSL2q/2IJ1WRUhebgAdGVMlV1fkuOQoEzR7EdpqtQD9Cs\n"
-              "5+bfo3Nhmcyvk5ftB0WkJ9z6bNZ7yxrP8wIDAQAB\n"
-              "-----END RSA PUBLIC KEY-----");
-      return std::make_shared<PublicRsaKeySharedMain>(std::move(keys));
-    }();
-    return main_public_rsa_key;
-  }
-}
-
-Result<mtproto::PublicRsaKeyInterface::RsaKey> PublicRsaKeySharedMain::get_rsa_key(const vector<int64> &fingerprints) {
-  for (auto fingerprint : fingerprints) {
-    for (const auto &key : keys_) {
-      if (key.fingerprint == fingerprint) {
-        return RsaKey{key.rsa.clone(), fingerprint};
-      }
-    }
-  }
-  return Status::Error(PSLICE() << "Unknown Main fingerprints " << fingerprints);
-}
-
-void PublicRsaKeySharedMain::drop_keys() {
-  // nothing to do
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/PublicRsaKeySharedMain.h b/third-party/td/td/td/telegram/net/PublicRsaKeySharedMain.h
deleted file mode 100644
index 34ebac34aa..0000000000
--- a/third-party/td/td/td/telegram/net/PublicRsaKeySharedMain.h
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/mtproto/RSA.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-namespace td {
-
-class PublicRsaKeySharedMain final : public mtproto::PublicRsaKeyInterface {
- public:
-  explicit PublicRsaKeySharedMain(vector<RsaKey> &&keys) : keys_(std::move(keys)) {
-  }
-
-  static std::shared_ptr<PublicRsaKeySharedMain> create(bool is_test);
-
-  Result<RsaKey> get_rsa_key(const vector<int64> &fingerprints) final;
-
-  void drop_keys() final;
-
- private:
-  vector<RsaKey> keys_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/PublicRsaKeyWatchdog.cpp b/third-party/td/td/td/telegram/net/PublicRsaKeyWatchdog.cpp
deleted file mode 100644
index 110de6162c..0000000000
--- a/third-party/td/td/td/telegram/net/PublicRsaKeyWatchdog.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/PublicRsaKeyWatchdog.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/Version.h"
-
-#include "td/mtproto/RSA.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-PublicRsaKeyWatchdog::PublicRsaKeyWatchdog(ActorShared<> parent) : parent_(std::move(parent)) {
-}
-
-void PublicRsaKeyWatchdog::add_public_rsa_key(std::shared_ptr<PublicRsaKeySharedCdn> key) {
-  class Listener final : public PublicRsaKeySharedCdn::Listener {
-   public:
-    explicit Listener(ActorId<PublicRsaKeyWatchdog> parent) : parent_(std::move(parent)) {
-    }
-    bool notify() final {
-      send_event(parent_, Event::yield());
-      return parent_.is_alive();
-    }
-
-   private:
-    ActorId<PublicRsaKeyWatchdog> parent_;
-  };
-
-  key->add_listener(make_unique<Listener>(actor_id(this)));
-  sync_key(key);
-  keys_.push_back(std::move(key));
-  loop();
-}
-
-void PublicRsaKeyWatchdog::start_up() {
-  flood_control_.add_limit(1, 1);
-  flood_control_.add_limit(2, 60);
-  flood_control_.add_limit(3, 2 * 60);
-
-  string version = G()->td_db()->get_binlog_pmc()->get("cdn_config_version");
-  current_version_ = to_string(MTPROTO_LAYER);
-  if (version != current_version_) {
-    G()->td_db()->get_binlog_pmc()->erase("cdn_config" + version);
-  } else {
-    sync(BufferSlice(G()->td_db()->get_binlog_pmc()->get("cdn_config" + version)));
-  }
-  CHECK(keys_.empty());
-}
-
-void PublicRsaKeyWatchdog::loop() {
-  if (has_query_) {
-    return;
-  }
-  auto now = Time::now();
-  if (now < flood_control_.get_wakeup_at()) {
-    set_timeout_at(flood_control_.get_wakeup_at() + 0.01);
-    return;
-  }
-  bool ok = true;
-  for (auto &key : keys_) {
-    if (!key->has_keys()) {
-      ok = false;
-    }
-  }
-  if (ok) {
-    return;
-  }
-  flood_control_.add_event(now);
-  has_query_ = true;
-  auto query = G()->net_query_creator().create(telegram_api::help_getCdnConfig());
-  query->total_timeout_limit_ = 60 * 60 * 24;
-  G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-}
-
-void PublicRsaKeyWatchdog::on_result(NetQueryPtr net_query) {
-  has_query_ = false;
-  yield();
-  if (net_query->is_error()) {
-    LOG(ERROR) << "Receive error for GetCdnConfig: " << net_query->move_as_error();
-    loop();
-    return;
-  }
-
-  auto buf = net_query->move_as_ok();
-  G()->td_db()->get_binlog_pmc()->set("cdn_config_version", current_version_);
-  G()->td_db()->get_binlog_pmc()->set("cdn_config" + current_version_, buf.as_slice().str());
-  sync(std::move(buf));
-}
-
-void PublicRsaKeyWatchdog::sync(BufferSlice cdn_config_serialized) {
-  if (cdn_config_serialized.empty()) {
-    loop();
-    return;
-  }
-  auto r_keys = fetch_result<telegram_api::help_getCdnConfig>(cdn_config_serialized);
-  if (r_keys.is_error()) {
-    LOG(WARNING) << "Failed to deserialize help_getCdnConfig (probably not a problem) " << r_keys.error();
-    loop();
-    return;
-  }
-  cdn_config_ = r_keys.move_as_ok();
-  if (keys_.empty()) {
-    LOG(INFO) << "Load " << to_string(cdn_config_);
-  } else {
-    LOG(INFO) << "Receive " << to_string(cdn_config_);
-    for (auto &key : keys_) {
-      sync_key(key);
-    }
-  }
-}
-
-void PublicRsaKeyWatchdog::sync_key(std::shared_ptr<PublicRsaKeySharedCdn> &key) {
-  if (!cdn_config_) {
-    return;
-  }
-  for (auto &config_key : cdn_config_->public_keys_) {
-    if (key->dc_id().get_raw_id() == config_key->dc_id_) {
-      auto r_rsa = mtproto::RSA::from_pem_public_key(config_key->public_key_);
-      if (r_rsa.is_error()) {
-        LOG(ERROR) << r_rsa.error();
-        continue;
-      }
-      LOG(INFO) << "Add CDN " << key->dc_id() << " key with fingerprint " << r_rsa.ok().get_fingerprint();
-      key->add_rsa(r_rsa.move_as_ok());
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/PublicRsaKeyWatchdog.h b/third-party/td/td/td/telegram/net/PublicRsaKeyWatchdog.h
deleted file mode 100644
index f9eb6ab0f9..0000000000
--- a/third-party/td/td/td/telegram/net/PublicRsaKeyWatchdog.h
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/NetActor.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/net/PublicRsaKeySharedCdn.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/FloodControlStrict.h"
-
-#include <memory>
-
-namespace td {
-
-class PublicRsaKeyWatchdog final : public NetActor {
- public:
-  explicit PublicRsaKeyWatchdog(ActorShared<> parent);
-
-  void add_public_rsa_key(std::shared_ptr<PublicRsaKeySharedCdn> key);
-
- private:
-  ActorShared<> parent_;
-  vector<std::shared_ptr<PublicRsaKeySharedCdn>> keys_;
-  tl_object_ptr<telegram_api::cdnConfig> cdn_config_;
-  FloodControlStrict flood_control_;
-  bool has_query_{false};
-  string current_version_;
-
-  void start_up() final;
-  void loop() final;
-
-  void on_result(NetQueryPtr net_query) final;
-  void sync(BufferSlice cdn_config_serialized);
-  void sync_key(std::shared_ptr<PublicRsaKeySharedCdn> &key);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/Session.cpp b/third-party/td/td/td/telegram/net/Session.cpp
deleted file mode 100644
index 40980f482f..0000000000
--- a/third-party/td/td/td/telegram/net/Session.cpp
+++ /dev/null
@@ -1,1581 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/Session.h"
-
-#include "td/telegram/DhCache.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/net/DcAuthManager.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/MtprotoHeader.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/net/NetType.h"
-#include "td/telegram/StateManager.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UniqueId.h"
-
-#include "td/mtproto/DhCallback.h"
-#include "td/mtproto/Handshake.h"
-#include "td/mtproto/HandshakeActor.h"
-#include "td/mtproto/RawConnection.h"
-#include "td/mtproto/RSA.h"
-#include "td/mtproto/SessionConnection.h"
-#include "td/mtproto/TransportType.h"
-
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Span.h"
-#include "td/utils/Time.h"
-#include "td/utils/Timer.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/utf8.h"
-#include "td/utils/VectorQueue.h"
-
-#include <atomic>
-#include <memory>
-#include <tuple>
-#include <utility>
-
-namespace td {
-
-namespace detail {
-
-class SemaphoreActor final : public Actor {
- public:
-  explicit SemaphoreActor(size_t capacity) : capacity_(capacity) {
-  }
-
-  void execute(Promise<Promise<Unit>> promise) {
-    if (capacity_ == 0) {
-      pending_.push(std::move(promise));
-    } else {
-      start(std::move(promise));
-    }
-  }
-
- private:
-  size_t capacity_;
-  VectorQueue<Promise<Promise<Unit>>> pending_;
-
-  void finish(Result<Unit>) {
-    capacity_++;
-    if (!pending_.empty()) {
-      start(pending_.pop());
-    }
-  }
-
-  void start(Promise<Promise<Unit>> promise) {
-    CHECK(capacity_ > 0);
-    capacity_--;
-    promise.set_value(promise_send_closure(actor_id(this), &SemaphoreActor::finish));
-  }
-};
-
-struct Semaphore {
-  explicit Semaphore(size_t capacity) {
-    semaphore_ = create_actor<SemaphoreActor>("Semaphore", capacity).release();
-  }
-
-  void execute(Promise<Promise<Unit>> promise) {
-    send_closure(semaphore_, &SemaphoreActor::execute, std::move(promise));
-  }
-
- private:
-  ActorId<SemaphoreActor> semaphore_;
-};
-
-class GenAuthKeyActor final : public Actor {
- public:
-  GenAuthKeyActor(Slice name, unique_ptr<mtproto::AuthKeyHandshake> handshake,
-                  unique_ptr<mtproto::AuthKeyHandshakeContext> context,
-                  Promise<unique_ptr<mtproto::RawConnection>> connection_promise,
-                  Promise<unique_ptr<mtproto::AuthKeyHandshake>> handshake_promise,
-                  std::shared_ptr<Session::Callback> callback)
-      : name_(name.str())
-      , handshake_(std::move(handshake))
-      , context_(std::move(context))
-      , connection_promise_(std::move(connection_promise))
-      , handshake_promise_(std::move(handshake_promise))
-      , callback_(std::move(callback)) {
-    if (actor_count_.fetch_add(1, std::memory_order_relaxed) == MIN_HIGH_LOAD_ACTOR_COUNT - 1) {
-      LOG(WARNING) << "Number of GenAuthKeyActor exceeded high-load threshold";
-    }
-  }
-  GenAuthKeyActor(const GenAuthKeyActor &) = delete;
-  GenAuthKeyActor &operator=(const GenAuthKeyActor &) = delete;
-  GenAuthKeyActor(GenAuthKeyActor &&) = delete;
-  GenAuthKeyActor &operator=(GenAuthKeyActor &&) = delete;
-  ~GenAuthKeyActor() final {
-    if (actor_count_.fetch_sub(1, std::memory_order_relaxed) == MIN_HIGH_LOAD_ACTOR_COUNT) {
-      LOG(WARNING) << "Number of GenAuthKeyActor became lower than high-load threshold";
-    }
-  }
-
-  static bool is_high_loaded() {
-    return actor_count_.load(std::memory_order_relaxed) >= MIN_HIGH_LOAD_ACTOR_COUNT;
-  }
-
-  void on_network(uint32 network_generation) {
-    if (network_generation_ != network_generation) {
-      send_closure(std::move(child_), &mtproto::HandshakeActor::close);
-    }
-  }
-
- private:
-  string name_;
-  uint32 network_generation_ = 0;
-  unique_ptr<mtproto::AuthKeyHandshake> handshake_;
-  unique_ptr<mtproto::AuthKeyHandshakeContext> context_;
-  Promise<unique_ptr<mtproto::RawConnection>> connection_promise_;
-  Promise<unique_ptr<mtproto::AuthKeyHandshake>> handshake_promise_;
-  std::shared_ptr<Session::Callback> callback_;
-  CancellationTokenSource cancellation_token_source_;
-
-  ActorOwn<mtproto::HandshakeActor> child_;
-  Promise<Unit> finish_promise_;
-
-  static constexpr size_t MIN_HIGH_LOAD_ACTOR_COUNT = 100;
-  static std::atomic<size_t> actor_count_;
-
-  static TD_THREAD_LOCAL Semaphore *semaphore_;
-  Semaphore &get_handshake_semaphore() {
-    auto old_context = set_context(std::make_shared<ActorContext>());
-    auto old_tag = set_tag(string());
-    init_thread_local<Semaphore>(semaphore_, 50);
-    set_context(std::move(old_context));
-    set_tag(std::move(old_tag));
-    return *semaphore_;
-  }
-
-  void start_up() final {
-    // Bug in Android clang and MSVC
-    // std::tuple<Result<int>> b(std::forward_as_tuple(Result<int>()));
-    get_handshake_semaphore().execute(promise_send_closure(actor_id(this), &GenAuthKeyActor::do_start_up));
-  }
-
-  void do_start_up(Result<Promise<Unit>> r_finish_promise) {
-    if (r_finish_promise.is_error()) {
-      LOG(ERROR) << "Unexpected error: " << r_finish_promise.error();
-    } else {
-      finish_promise_ = r_finish_promise.move_as_ok();
-    }
-    callback_->request_raw_connection(
-        nullptr, PromiseCreator::cancellable_lambda(
-                     cancellation_token_source_.get_cancellation_token(),
-                     [actor_id = actor_id(this)](Result<unique_ptr<mtproto::RawConnection>> r_raw_connection) {
-                       send_closure(actor_id, &GenAuthKeyActor::on_connection, std::move(r_raw_connection), false);
-                     }));
-  }
-
-  void hangup() final {
-    if (connection_promise_) {
-      connection_promise_.set_error(Status::Error(1, "Canceled"));
-    }
-    if (handshake_promise_) {
-      handshake_promise_.set_error(Status::Error(1, "Canceled"));
-    }
-    stop();
-  }
-
-  void on_connection(Result<unique_ptr<mtproto::RawConnection>> r_raw_connection, bool dummy) {
-    if (r_raw_connection.is_error()) {
-      connection_promise_.set_error(r_raw_connection.move_as_error());
-      handshake_promise_.set_value(std::move(handshake_));
-      return;
-    }
-
-    auto raw_connection = r_raw_connection.move_as_ok();
-    VLOG(dc) << "Receive raw connection " << raw_connection.get();
-    network_generation_ = raw_connection->extra().extra;
-    child_ = create_actor_on_scheduler<mtproto::HandshakeActor>(
-        PSLICE() << name_ + "::HandshakeActor", G()->get_slow_net_scheduler_id(), std::move(handshake_),
-        std::move(raw_connection), std::move(context_), 10, std::move(connection_promise_),
-        std::move(handshake_promise_));
-  }
-};
-
-std::atomic<size_t> GenAuthKeyActor::actor_count_;
-TD_THREAD_LOCAL Semaphore *GenAuthKeyActor::semaphore_{};
-
-}  // namespace detail
-
-void Session::PendingQueries::push(NetQueryPtr query) {
-  auto &queue = query->is_high_priority() ? high_priority_queries_ : regular_queries_;
-  queue.push(std::move(query));
-}
-
-NetQueryPtr Session::PendingQueries::pop() {
-  auto &queue = high_priority_queries_.empty() ? regular_queries_ : high_priority_queries_;
-  CHECK(!queue.empty());
-  return queue.pop();
-}
-
-bool Session::PendingQueries::empty() const {
-  return regular_queries_.empty() && high_priority_queries_.empty();
-}
-
-Session::Session(unique_ptr<Callback> callback, std::shared_ptr<AuthDataShared> shared_auth_data, int32 raw_dc_id,
-                 int32 dc_id, bool is_primary, bool is_main, bool use_pfs, bool persist_tmp_auth_key, bool is_cdn,
-                 bool need_destroy_auth_key, const mtproto::AuthKey &tmp_auth_key,
-                 const vector<mtproto::ServerSalt> &server_salts)
-    : raw_dc_id_(raw_dc_id)
-    , dc_id_(dc_id)
-    , is_primary_(is_primary)
-    , is_main_(is_main)
-    , persist_tmp_auth_key_(use_pfs && persist_tmp_auth_key)
-    , is_cdn_(is_cdn)
-    , need_destroy_auth_key_(need_destroy_auth_key) {
-  VLOG(dc) << "Start connection " << tag("need_destroy_auth_key", need_destroy_auth_key_);
-  if (need_destroy_auth_key_) {
-    use_pfs = false;
-    CHECK(!is_cdn);
-  }
-
-  shared_auth_data_ = std::move(shared_auth_data);
-  auth_data_.set_use_pfs(use_pfs);
-  auth_data_.set_main_auth_key(shared_auth_data_->get_auth_key());
-  // auth_data_.break_main_auth_key();
-  auth_data_.reset_server_time_difference(shared_auth_data_->get_server_time_difference());
-  auto now = Time::now();
-  auth_data_.set_future_salts(shared_auth_data_->get_future_salts(), now);
-  if (use_pfs && !tmp_auth_key.empty()) {
-    auth_data_.set_tmp_auth_key(tmp_auth_key);
-    if (is_main_) {
-      registered_temp_auth_key_ = TempAuthKeyWatchdog::register_auth_key_id(auth_data_.get_tmp_auth_key().id());
-    }
-    auth_data_.set_future_salts(server_salts, now);
-  }
-  uint64 session_id = 0;
-  do {
-    Random::secure_bytes(reinterpret_cast<uint8 *>(&session_id), sizeof(session_id));
-  } while (session_id == 0);
-  auth_data_.set_session_id(session_id);
-  use_pfs_ = use_pfs;
-  LOG(WARNING) << "Generate new session_id " << session_id << " for " << (use_pfs ? "temp " : "")
-               << (is_cdn ? "CDN " : "") << "auth key " << auth_data_.get_auth_key().id() << " for "
-               << (is_main_ ? "main " : "") << "DC" << dc_id;
-
-  callback_ = std::shared_ptr<Callback>(callback.release());
-
-  main_connection_.connection_id_ = 0;
-  long_poll_connection_.connection_id_ = 1;
-
-  if (is_cdn) {
-    auth_data_.set_header(G()->mtproto_header().get_anonymous_header());
-  } else {
-    auth_data_.set_header(G()->mtproto_header().get_default_header());
-  }
-  last_activity_timestamp_ = now;
-  last_success_timestamp_ = now - 366 * 86400;
-  last_bind_success_timestamp_ = now - 366 * 86400;
-}
-
-bool Session::is_high_loaded() {
-  return detail::GenAuthKeyActor::is_high_loaded();
-}
-
-bool Session::can_destroy_auth_key() const {
-  return need_destroy_auth_key_;
-}
-
-void Session::start_up() {
-  class StateCallback final : public StateManager::Callback {
-   public:
-    explicit StateCallback(ActorId<Session> session) : session_(std::move(session)) {
-    }
-    bool on_network(NetType network_type, uint32 network_generation) final {
-      send_closure(session_, &Session::on_network, network_type != NetType::None, network_generation);
-      return session_.is_alive();
-    }
-    bool on_online(bool online_flag) final {
-      send_closure(session_, &Session::on_online, online_flag);
-      return session_.is_alive();
-    }
-    bool on_logging_out(bool logging_out_flag) final {
-      send_closure(session_, &Session::on_logging_out, logging_out_flag);
-      return session_.is_alive();
-    }
-
-   private:
-    ActorId<Session> session_;
-  };
-  send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
-
-  yield();
-}
-
-void Session::on_network(bool network_flag, uint32 network_generation) {
-  was_on_network_ = true;
-  network_flag_ = network_flag;
-  if (network_generation_ != network_generation) {
-    network_generation_ = network_generation;
-    connection_close(&main_connection_);
-    connection_close(&long_poll_connection_);
-  }
-
-  for (auto &handshake_info : handshake_info_) {
-    if (handshake_info.actor_.empty()) {
-      continue;
-    }
-    send_closure(handshake_info.actor_, &detail::GenAuthKeyActor::on_network, network_generation);
-  }
-
-  loop();
-}
-
-void Session::on_online(bool online_flag) {
-  LOG(DEBUG) << "Set online flag to " << online_flag;
-  online_flag_ = online_flag;
-  connection_online_update(Time::now(), true);
-  loop();
-}
-
-void Session::on_logging_out(bool logging_out_flag) {
-  LOG(DEBUG) << "Set logging out flag to " << logging_out_flag;
-  logging_out_flag_ = logging_out_flag;
-  connection_online_update(Time::now(), true);
-  loop();
-}
-
-void Session::connection_online_update(double now, bool force) {
-  bool new_connection_online_flag =
-      (online_flag_ || logging_out_flag_) && (has_queries() || last_activity_timestamp_ + 10 > now || is_primary_);
-  if (connection_online_flag_ == new_connection_online_flag && !force) {
-    return;
-  }
-  connection_online_flag_ = new_connection_online_flag;
-  VLOG(dc) << "Set connection_online " << connection_online_flag_;
-  if (main_connection_.connection_) {
-    main_connection_.connection_->set_online(connection_online_flag_, is_primary_);
-  }
-  if (long_poll_connection_.connection_) {
-    long_poll_connection_.connection_->set_online(connection_online_flag_, is_primary_);
-  }
-}
-
-void Session::send(NetQueryPtr &&query) {
-  last_activity_timestamp_ = Time::now();
-
-  // query->debug(PSTRING() << get_name() << ": received by Session");
-  query->set_session_id(auth_data_.get_session_id());
-  VLOG(net_query) << "Receive query " << query;
-  if (query->update_is_ready()) {
-    return_query(std::move(query));
-    return;
-  }
-  add_query(std::move(query));
-  loop();
-}
-
-void Session::on_bind_result(NetQueryPtr query) {
-  LOG(INFO) << "Receive answer to BindKey: " << query;
-  being_binded_tmp_auth_key_id_ = 0;
-  last_bind_query_id_ = 0;
-
-  Status status;
-  if (query->is_error()) {
-    status = query->move_as_error();
-    if (status.code() == 400 && status.message() == "ENCRYPTED_MESSAGE_INVALID") {
-      auto server_time = G()->server_time();
-      auto auth_key_creation_date = auth_data_.get_main_auth_key().created_at();
-      auto auth_key_age = server_time - auth_key_creation_date;
-      auto is_server_time_reliable = G()->is_server_time_reliable();
-      auto last_success_time = use_pfs_ ? last_bind_success_timestamp_ : last_success_timestamp_;
-      auto now = Time::now();
-      bool has_immunity =
-          !is_server_time_reliable || auth_key_age < 60 || (auth_key_age > 86400 && last_success_time > now - 86400);
-      auto debug = PSTRING() << ". Server time is " << server_time << ", auth key created at " << auth_key_creation_date
-                             << ", is_server_time_reliable = " << is_server_time_reliable << ", use_pfs = " << use_pfs_
-                             << ", last_success_time = " << last_success_time << ", now = " << now;
-      if (!use_pfs_) {
-        if (has_immunity) {
-          LOG(WARNING) << "Do not drop main key, because it was created too recently" << debug;
-        } else {
-          LOG(WARNING) << "Drop main key because check with temporary key failed" << debug;
-          auth_data_.drop_main_auth_key();
-          on_auth_key_updated();
-          G()->log_out("Main authorization key is invalid");
-        }
-      } else {
-        if (has_immunity) {
-          LOG(WARNING) << "Do not validate main key, because it was created too recently" << debug;
-        } else {
-          need_check_main_key_ = true;
-          auth_data_.set_use_pfs(false);
-          LOG(WARNING) << "Receive ENCRYPTED_MESSAGE_INVALID error, validate main key" << debug;
-        }
-      }
-    }
-  } else {
-    auto answer = query->move_as_ok();
-    auto r_flag = fetch_result<telegram_api::auth_bindTempAuthKey>(answer);
-    if (r_flag.is_error()) {
-      status = r_flag.move_as_error();
-    } else if (!r_flag.ok()) {
-      status = Status::Error("Returned false");
-    }
-  }
-  if (status.is_ok()) {
-    LOG(INFO) << "Bound temp auth key " << auth_data_.get_tmp_auth_key().id();
-    auth_data_.on_bind();
-    last_bind_success_timestamp_ = Time::now();
-    on_tmp_auth_key_updated();
-  } else if (status.message() == "DispatchTtlError") {
-    LOG(INFO) << "Resend bind auth key " << auth_data_.get_tmp_auth_key().id() << " request after DispatchTtlError";
-  } else {
-    LOG(ERROR) << "BindKey failed: " << status;
-    connection_close(&main_connection_);
-    connection_close(&long_poll_connection_);
-  }
-
-  yield();
-}
-
-void Session::on_check_key_result(NetQueryPtr query) {
-  LOG(INFO) << "Receive answer to GetNearestDc: " << query;
-  being_checked_main_auth_key_id_ = 0;
-  last_check_query_id_ = 0;
-
-  Status status;
-  if (query->is_error()) {
-    status = query->move_as_error();
-  } else {
-    auto answer = query->move_as_ok();
-    auto r_flag = fetch_result<telegram_api::help_getNearestDc>(answer);
-    if (r_flag.is_error()) {
-      status = r_flag.move_as_error();
-    }
-  }
-  if (status.is_ok() || status.code() != -404) {
-    LOG(INFO) << "Check main key ok";
-    need_check_main_key_ = false;
-    auth_data_.set_use_pfs(true);
-  } else {
-    LOG(ERROR) << "Check main key failed: " << status;
-    connection_close(&main_connection_);
-    connection_close(&long_poll_connection_);
-  }
-
-  yield();
-}
-
-void Session::on_result(NetQueryPtr query) {
-  CHECK(UniqueId::extract_type(query->id()) == UniqueId::BindKey);
-  if (last_bind_query_id_ == query->id()) {
-    return on_bind_result(std::move(query));
-  }
-  if (last_check_query_id_ == query->id()) {
-    return on_check_key_result(std::move(query));
-  }
-  query->clear();
-}
-
-void Session::return_query(NetQueryPtr &&query) {
-  last_activity_timestamp_ = Time::now();
-
-  query->set_session_id(0);
-  callback_->on_result(std::move(query));
-}
-
-void Session::flush_pending_invoke_after_queries() {
-  while (!pending_invoke_after_queries_.empty()) {
-    auto &query = pending_invoke_after_queries_.front();
-    pending_queries_.push(std::move(query));
-    pending_invoke_after_queries_.pop_front();
-  }
-}
-
-void Session::close() {
-  LOG(INFO) << "Close session (external)";
-  close_flag_ = true;
-  connection_close(&main_connection_);
-  connection_close(&long_poll_connection_);
-
-  for (auto &it : sent_queries_) {
-    auto &query = it.second.net_query_;
-    query->set_message_id(0);
-    pending_queries_.push(std::move(query));
-  }
-  sent_queries_.clear();
-  sent_containers_.clear();
-
-  flush_pending_invoke_after_queries();
-  CHECK(sent_queries_.empty());
-  while (!pending_queries_.empty()) {
-    auto query = pending_queries_.pop();
-    query->set_error_resend();
-    return_query(std::move(query));
-  }
-
-  callback_->on_closed();
-  stop();
-}
-
-void Session::hangup() {
-  LOG(DEBUG) << "HANGUP";
-  close();
-}
-
-void Session::raw_event(const Event::Raw &event) {
-  auto message_id = mtproto::MessageId(event.u64);
-  auto it = sent_queries_.find(message_id);
-  if (it == sent_queries_.end()) {
-    return;
-  }
-
-  dec_container(it->first, it->second);
-  mark_as_known(it->first, it->second);
-
-  auto query = std::move(it->second.net_query_);
-  LOG(DEBUG) << "Drop answer for " << query;
-  query->set_message_id(0);
-  sent_queries_.erase(it);
-  return_query(std::move(query));
-
-  if (main_connection_.state_ == ConnectionInfo::State::Ready) {
-    main_connection_.connection_->cancel_answer(message_id);
-  } else {
-    to_cancel_message_ids_.push_back(message_id);
-  }
-  loop();
-}
-
-/** Connection::Callback **/
-void Session::on_connected() {
-  if (is_main_) {
-    connection_token_ =
-        mtproto::ConnectionManager::connection(static_cast<ActorId<mtproto::ConnectionManager>>(G()->state_manager()));
-  }
-}
-
-Status Session::on_pong(double ping_time, double pong_time, double current_time) {
-  constexpr int MIN_CONNECTION_ACTIVE = 60;
-  if (current_info_ == &main_connection_ &&
-      Timestamp::at(current_info_->created_at_ + MIN_CONNECTION_ACTIVE).is_in_past()) {
-    Status status;
-    if (!unknown_queries_.empty()) {
-      status = Status::Error(PSLICE() << "No state info for " << unknown_queries_.size() << " queries from auth key "
-                                      << auth_data_.get_auth_key().id() << " for "
-                                      << format::as_time(Time::now() - current_info_->created_at_)
-                                      << " after ping sent at " << ping_time << " and answered at " << pong_time
-                                      << " with the current server time " << current_time);
-    }
-    if (!sent_queries_list_.empty()) {
-      double query_timeout = 60 + (current_time - ping_time);
-      for (auto it = sent_queries_list_.prev; it != &sent_queries_list_; it = it->prev) {
-        auto query = Query::from_list_node(it);
-        if (Timestamp::at(query->sent_at_ + query_timeout).is_in_past()) {
-          if (status.is_ok()) {
-            status =
-                Status::Error(PSLICE() << "No answer from auth key " << auth_data_.get_auth_key().id() << " for "
-                                       << query->net_query_ << " for " << format::as_time(Time::now() - query->sent_at_)
-                                       << " after ping sent at " << ping_time << " and answered at " << pong_time
-                                       << " with the current server time " << current_time);
-          }
-          query->is_acknowledged_ = false;
-        } else {
-          break;
-        }
-      }
-    }
-    return status;
-  }
-  return Status::OK();
-}
-
-void Session::on_auth_key_updated() {
-  shared_auth_data_->set_auth_key(auth_data_.get_main_auth_key());
-}
-
-void Session::on_tmp_auth_key_updated() {
-  callback_->on_tmp_auth_key_updated(auth_data_.get_tmp_auth_key());
-}
-
-void Session::on_server_salt_updated() {
-  if (auth_data_.use_pfs()) {
-    callback_->on_server_salt_updated(auth_data_.get_future_salts());
-    return;
-  }
-  shared_auth_data_->set_future_salts(auth_data_.get_future_salts());
-}
-
-void Session::on_server_time_difference_updated(bool force) {
-  shared_auth_data_->update_server_time_difference(auth_data_.get_server_time_difference(), force);
-}
-
-void Session::on_closed(Status status) {
-  if (!close_flag_ && is_main_) {
-    connection_token_.reset();
-  }
-  auto raw_connection = current_info_->connection_->move_as_raw_connection();
-  Scheduler::unsubscribe_before_close(raw_connection->get_poll_info().get_pollable_fd_ref());
-  raw_connection->close();
-
-  if (status.is_error() && status.code() == -404) {
-    if (auth_data_.use_pfs()) {
-      LOG(WARNING) << "Invalidate tmp_key";
-      auth_data_.drop_tmp_auth_key();
-      on_tmp_auth_key_updated();
-      yield();
-    } else if (is_cdn_) {
-      LOG(WARNING) << "Invalidate CDN tmp_key";
-      auth_data_.drop_main_auth_key();
-      on_auth_key_updated();
-      on_session_failed(status.clone());
-    } else if (need_destroy_auth_key_) {
-      LOG(WARNING) << "Session connection was closed, because main auth_key has been successfully destroyed";
-      auth_data_.drop_main_auth_key();
-      on_auth_key_updated();
-    } else {
-      // log out if has error and or 1 minute is passed from start, or 1 minute has passed since auth_key creation
-      if (!use_pfs_) {
-        LOG(WARNING) << "Use PFS to check main key";
-        auth_data_.set_use_pfs(true);
-      } else if (need_check_main_key_) {
-        LOG(WARNING) << "Invalidate main key";
-        bool can_drop_main_auth_key_without_logging_out =
-            !is_main_ && G()->net_query_dispatcher().get_main_dc_id().get_raw_id() != raw_dc_id_;
-        auth_data_.drop_main_auth_key();
-        on_auth_key_updated();
-        if (can_drop_main_auth_key_without_logging_out) {
-          on_session_failed(status.clone());
-        } else {
-          G()->log_out("Main PFS authorization key is invalid");
-        }
-      } else {
-        LOG(WARNING) << "Session connection was closed: " << status << ' ' << current_info_->connection_->get_name();
-      }
-      yield();
-    }
-  } else {
-    if (status.is_error()) {
-      LOG(WARNING) << "Session connection with " << sent_queries_.size() << " pending requests was closed: " << status
-                   << ' ' << current_info_->connection_->get_name();
-    } else {
-      LOG(INFO) << "Session connection with " << sent_queries_.size() << " pending requests was closed: " << status
-                << ' ' << current_info_->connection_->get_name();
-    }
-  }
-
-  // resend all queries without ack
-  for (auto it = sent_queries_.begin(); it != sent_queries_.end();) {
-    if (!it->second.is_acknowledged_ && it->second.connection_id_ == current_info_->connection_id_) {
-      cleanup_container(it->first, it->second);
-      // mark query as unknown
-      if (status.is_error() && status.code() == 500) {
-        mark_as_known(it->first, it->second);
-
-        auto &query = it->second.net_query_;
-        VLOG(net_query) << "Resend query (on_disconnected, no ack) " << query;
-        query->set_message_id(0);
-        query->set_error(Status::Error(500, PSLICE() << "Session failed: " << status.message()),
-                         current_info_->connection_->get_name().str());
-        return_query(std::move(query));
-        it = sent_queries_.erase(it);
-      } else {
-        mark_as_unknown(it->first, it->second);
-        ++it;
-      }
-    } else {
-      ++it;
-    }
-  }
-
-  current_info_->connection_.reset();
-  current_info_->state_ = ConnectionInfo::State::Empty;
-}
-
-void Session::on_new_session_created(uint64 unique_id, mtproto::MessageId first_message_id) {
-  LOG(INFO) << "New session " << unique_id << " created with first " << first_message_id;
-  if (!use_pfs_ && !auth_data_.use_pfs()) {
-    last_success_timestamp_ = Time::now();
-  }
-  if (is_main_) {
-    LOG(DEBUG) << "Sending updatesTooLong to force getDifference";
-    BufferSlice packet(4);
-    as<int32>(packet.as_mutable_slice().begin()) = telegram_api::updatesTooLong::ID;
-    last_activity_timestamp_ = Time::now();
-    callback_->on_update(std::move(packet), auth_data_.get_auth_key().id());
-  }
-  auto first_query_it = sent_queries_.find(first_message_id);
-  if (first_query_it != sent_queries_.end()) {
-    first_message_id = first_query_it->second.container_message_id_;
-    LOG(INFO) << "Update first message to container's " << first_message_id;
-  } else {
-    LOG(INFO) << "Failed to find sent " << first_message_id << " from the new session";
-  }
-  for (auto it = sent_queries_.begin(); it != sent_queries_.end();) {
-    Query &query = it->second;
-    if (query.container_message_id_ < first_message_id) {
-      // container vector leak otherwise
-      cleanup_container(it->first, query);
-      mark_as_known(it->first, query);
-      resend_query(std::move(query.net_query_));
-      it = sent_queries_.erase(it);
-    } else {
-      ++it;
-    }
-  }
-}
-
-void Session::on_session_failed(Status status) {
-  if (status.is_error()) {
-    LOG(WARNING) << "Session failed: " << status;
-  } else {
-    LOG(INFO) << "Session will be closed soon";
-  }
-  // this connection will be closed soon
-  close_flag_ = true;
-  callback_->on_failed();
-}
-
-void Session::on_container_sent(mtproto::MessageId container_message_id, vector<mtproto::MessageId> message_ids) {
-  CHECK(container_message_id != mtproto::MessageId());
-
-  td::remove_if(message_ids, [&](mtproto::MessageId message_id) {
-    auto it = sent_queries_.find(message_id);
-    if (it == sent_queries_.end()) {
-      return true;  // remove
-    }
-    it->second.container_message_id_ = container_message_id;
-    return false;
-  });
-  if (message_ids.empty()) {
-    return;
-  }
-  auto size = message_ids.size();
-  sent_containers_.emplace(container_message_id, ContainerInfo{size, std::move(message_ids)});
-}
-
-void Session::on_message_ack(mtproto::MessageId message_id) {
-  on_message_ack_impl(message_id, 1);
-}
-
-void Session::on_message_ack_impl(mtproto::MessageId container_message_id, int32 type) {
-  auto cit = sent_containers_.find(container_message_id);
-  if (cit != sent_containers_.end()) {
-    auto container_info = std::move(cit->second);
-    sent_containers_.erase(cit);
-
-    for (auto message_id : container_info.message_ids) {
-      on_message_ack_impl_inner(message_id, type, true);
-    }
-    return;
-  }
-
-  on_message_ack_impl_inner(container_message_id, type, false);
-}
-
-void Session::on_message_ack_impl_inner(mtproto::MessageId message_id, int32 type, bool in_container) {
-  auto it = sent_queries_.find(message_id);
-  if (it == sent_queries_.end()) {
-    return;
-  }
-  VLOG(net_query) << "Ack " << it->second.net_query_;
-  it->second.is_acknowledged_ = true;
-  {
-    auto lock = it->second.net_query_->lock();
-    it->second.net_query_->get_data_unsafe().ack_state_ |= type;
-  }
-  it->second.net_query_->quick_ack_promise_.set_value(Unit());
-  if (!in_container) {
-    cleanup_container(message_id, it->second);
-  }
-  mark_as_known(it->first, it->second);
-}
-
-void Session::dec_container(mtproto::MessageId container_message_id, const Query &query) {
-  if (query.container_message_id_ == container_message_id) {
-    // message was sent without any container
-    return;
-  }
-  auto it = sent_containers_.find(query.container_message_id_);
-  if (it == sent_containers_.end()) {
-    return;
-  }
-  CHECK(it->second.ref_cnt > 0);
-  it->second.ref_cnt--;
-  if (it->second.ref_cnt == 0) {
-    sent_containers_.erase(it);
-  }
-}
-
-void Session::cleanup_container(mtproto::MessageId container_message_id, const Query &query) {
-  if (query.container_message_id_ == container_message_id) {
-    // message was sent without any container
-    return;
-  }
-
-  // we can forget container now, since we have an answer for its part.
-  // TODO: we can do it only for one element per container
-  sent_containers_.erase(query.container_message_id_);
-}
-
-void Session::mark_as_known(mtproto::MessageId message_id, Query &query) {
-  {
-    auto lock = query.net_query_->lock();
-    query.net_query_->get_data_unsafe().unknown_state_ = false;
-  }
-  if (!query.is_unknown_) {
-    return;
-  }
-  VLOG(net_query) << "Mark as known " << query.net_query_;
-  query.is_unknown_ = false;
-  unknown_queries_.erase(message_id);
-  if (unknown_queries_.empty()) {
-    flush_pending_invoke_after_queries();
-  }
-}
-
-void Session::mark_as_unknown(mtproto::MessageId message_id, Query &query) {
-  {
-    auto lock = query.net_query_->lock();
-    query.net_query_->get_data_unsafe().unknown_state_ = true;
-  }
-  if (query.is_unknown_) {
-    return;
-  }
-  VLOG(net_query) << "Mark as unknown " << query.net_query_;
-  query.is_unknown_ = true;
-  CHECK(message_id != mtproto::MessageId());
-  unknown_queries_.insert(message_id);
-}
-
-Status Session::on_update(BufferSlice packet) {
-  if (is_cdn_) {
-    return Status::Error("Receive an update from a CDN connection");
-  }
-
-  if (!use_pfs_ && !auth_data_.use_pfs()) {
-    last_success_timestamp_ = Time::now();
-  }
-  last_activity_timestamp_ = Time::now();
-  callback_->on_update(std::move(packet), auth_data_.get_auth_key().id());
-  return Status::OK();
-}
-
-Status Session::on_message_result_ok(mtproto::MessageId message_id, BufferSlice packet, size_t original_size) {
-  last_success_timestamp_ = Time::now();
-
-  TlParser parser(packet.as_slice());
-  int32 response_tl_id = parser.fetch_int();
-
-  auto it = sent_queries_.find(message_id);
-  if (it == sent_queries_.end()) {
-    LOG(DEBUG) << "Drop result to " << message_id << tag("original_size", original_size)
-               << tag("response_tl", format::as_hex(response_tl_id));
-
-    if (original_size > 16 * 1024) {
-      dropped_size_ += original_size;
-      if (dropped_size_ > (256 * 1024)) {
-        auto dropped_size = dropped_size_;
-        dropped_size_ = 0;
-        return Status::Error(
-            2, PSLICE() << "Too many dropped packets " << tag("total_size", format::as_size(dropped_size)));
-      }
-    }
-    return Status::OK();
-  }
-
-  auth_data_.on_api_response();
-  Query &query = it->second;
-  VLOG(net_query) << "Return query result " << query.net_query_;
-
-  if (!parser.get_error()) {
-    // Steal authorization information.
-    // It is a dirty hack, yep.
-    if (response_tl_id == telegram_api::auth_authorization::ID ||
-        response_tl_id == telegram_api::auth_loginTokenSuccess::ID ||
-        response_tl_id == telegram_api::auth_sentCodeSuccess::ID) {
-      if (query.net_query_->tl_constructor() != telegram_api::auth_importAuthorization::ID) {
-        G()->net_query_dispatcher().set_main_dc_id(raw_dc_id_);
-      }
-      auth_data_.set_auth_flag(true);
-      shared_auth_data_->set_auth_key(auth_data_.get_main_auth_key());
-    }
-  }
-
-  cleanup_container(message_id, query);
-  mark_as_known(message_id, query);
-  query.net_query_->on_net_read(original_size);
-  query.net_query_->set_ok(std::move(packet));
-  query.net_query_->set_message_id(0);
-  return_query(std::move(query.net_query_));
-
-  sent_queries_.erase(it);
-  return Status::OK();
-}
-
-void Session::on_message_result_error(mtproto::MessageId message_id, int error_code, string message) {
-  if (!check_utf8(message)) {
-    LOG(ERROR) << "Receive invalid error message \"" << message << '"';
-    message = "INVALID_UTF8_ERROR_MESSAGE";
-  }
-  if (error_code <= -10000 || error_code >= 10000 || error_code == 0) {
-    LOG(ERROR) << "Receive invalid error code " << error_code << " with message \"" << message << '"';
-    error_code = 500;
-  }
-
-  // UNAUTHORIZED
-  if (error_code == 401 && message != "SESSION_PASSWORD_NEEDED") {
-    if (auth_data_.use_pfs() && message == CSlice("AUTH_KEY_PERM_EMPTY")) {
-      LOG(INFO) << "Receive AUTH_KEY_PERM_EMPTY in session " << auth_data_.get_session_id() << " for auth key "
-                << auth_data_.get_tmp_auth_key().id();
-      // temporary key can be dropped any time
-      auth_data_.drop_tmp_auth_key();
-      on_tmp_auth_key_updated();
-      error_code = 500;
-    } else {
-      if (auth_data_.use_pfs() && !is_main_) {
-        // temporary key can be dropped any time
-        auth_data_.drop_tmp_auth_key();
-        on_tmp_auth_key_updated();
-        error_code = 500;
-      }
-
-      bool can_drop_main_auth_key_without_logging_out = is_cdn_;
-      if (!is_main_ && G()->net_query_dispatcher().get_main_dc_id().get_raw_id() != raw_dc_id_) {
-        can_drop_main_auth_key_without_logging_out = true;
-      }
-      LOG(INFO) << "Receive 401, " << message << " in session " << auth_data_.get_session_id() << " for auth key "
-                << auth_data_.get_auth_key().id() << ", PFS = " << auth_data_.use_pfs() << ", is_main = " << is_main_
-                << ", can_drop_main_auth_key_without_logging_out = " << can_drop_main_auth_key_without_logging_out;
-      if (can_drop_main_auth_key_without_logging_out) {
-        auth_data_.drop_main_auth_key();
-        on_auth_key_updated();
-        error_code = 500;
-      } else {
-        auth_data_.set_auth_flag(false);
-        G()->log_out(message);
-        shared_auth_data_->set_auth_key(auth_data_.get_main_auth_key());
-        on_session_failed(Status::OK());
-      }
-    }
-  }
-  if (error_code == 400 && (message == "CONNECTION_NOT_INITED" || message == "CONNECTION_LAYER_INVALID")) {
-    LOG(WARNING) << "Receive " << message;
-    auth_data_.on_connection_not_inited();
-    error_code = 500;
-  }
-
-  if (message_id == mtproto::MessageId()) {
-    LOG(ERROR) << "Receive an error without message_id";
-    return;
-  }
-
-  if (error_code < 0) {
-    LOG(WARNING) << "Receive MTProto error " << error_code << " : " << message << " in session "
-                 << auth_data_.get_session_id() << " for auth key " << auth_data_.get_auth_key().id() << " with "
-                 << sent_queries_.size() << " pending requests";
-  }
-  auto it = sent_queries_.find(message_id);
-  if (it == sent_queries_.end()) {
-    current_info_->connection_->force_ack();
-    return;
-  }
-
-  Query &query = it->second;
-  VLOG(net_query) << "Return query error " << query.net_query_;
-
-  cleanup_container(message_id, query);
-  mark_as_known(message_id, query);
-  query.net_query_->set_error(Status::Error(error_code, message), current_info_->connection_->get_name().str());
-  query.net_query_->set_message_id(0);
-  return_query(std::move(query.net_query_));
-
-  sent_queries_.erase(it);
-}
-
-void Session::on_message_failed_inner(mtproto::MessageId message_id, bool in_container) {
-  LOG(INFO) << "Message inner failed for " << message_id;
-  auto it = sent_queries_.find(message_id);
-  if (it == sent_queries_.end()) {
-    return;
-  }
-
-  Query &query = it->second;
-  if (!in_container) {
-    cleanup_container(message_id, query);
-  }
-  mark_as_known(message_id, query);
-
-  query.net_query_->debug_send_failed();
-  resend_query(std::move(query.net_query_));
-  sent_queries_.erase(it);
-}
-
-void Session::on_message_failed(mtproto::MessageId message_id, Status status) {
-  LOG(INFO) << "Failed to send " << message_id << ": " << status;
-  status.ignore();
-
-  auto cit = sent_containers_.find(message_id);
-  if (cit != sent_containers_.end()) {
-    auto container_info = std::move(cit->second);
-    sent_containers_.erase(cit);
-
-    for (auto contained_message_id : container_info.message_ids) {
-      on_message_failed_inner(contained_message_id, true);
-    }
-    return;
-  }
-
-  on_message_failed_inner(message_id, false);
-}
-
-void Session::on_message_info(mtproto::MessageId message_id, int32 state, mtproto::MessageId answer_message_id,
-                              int32 answer_size, int32 source) {
-  auto it = sent_queries_.find(message_id);
-  if (it != sent_queries_.end()) {
-    if (it->second.net_query_->update_is_ready()) {
-      dec_container(it->first, it->second);
-      mark_as_known(it->first, it->second);
-
-      auto query = std::move(it->second.net_query_);
-      query->set_message_id(0);
-      sent_queries_.erase(it);
-      return_query(std::move(query));
-      return;
-    }
-  }
-  LOG(INFO) << "Receive info about " << message_id << " with state = " << state << " and answer " << answer_message_id
-            << " from " << source;
-  if (message_id != mtproto::MessageId()) {
-    if (it == sent_queries_.end()) {
-      return;
-    }
-    switch (state & 7) {
-      case 1:
-      case 2:
-      case 3:
-        return on_message_failed(message_id,
-                                 Status::Error("Message wasn't received by the server and must be re-sent"));
-      case 0:
-        if (answer_message_id == mtproto::MessageId()) {
-          LOG(ERROR) << "Unexpected message_info.state == 0 for " << message_id << ": " << tag("state", state)
-                     << tag("answer", answer_message_id);
-          return on_message_failed(message_id, Status::Error("Unexpected message_info.state == 0"));
-        }
-      // fallthrough
-      case 4:
-        CHECK(0 <= source && source <= 3);
-        on_message_ack_impl(message_id, (answer_message_id != mtproto::MessageId() ? 2 : 0) |
-                                            (((state | source) & ((1 << 28) - 1)) << 2));
-        break;
-      default:
-        LOG(ERROR) << "Invalid message info " << tag("state", state);
-    }
-  }
-
-  // ok, we are waiting for result of message_id. let's ask to resend it
-  if (answer_message_id != mtproto::MessageId()) {
-    if (it != sent_queries_.end()) {
-      VLOG_IF(net_query, message_id != mtproto::MessageId())
-          << "Resend answer " << answer_message_id << ": " << tag("answer_size", answer_size) << it->second.net_query_;
-      it->second.net_query_->debug(PSTRING() << get_name() << ": resend answer");
-    }
-    current_info_->connection_->resend_answer(answer_message_id);
-  }
-}
-
-Status Session::on_destroy_auth_key() {
-  auth_data_.drop_main_auth_key();
-  on_auth_key_updated();
-  return Status::Error("Close because of on_destroy_auth_key");
-}
-
-bool Session::has_queries() const {
-  return !pending_invoke_after_queries_.empty() || !pending_queries_.empty() || !sent_queries_.empty();
-}
-
-void Session::resend_query(NetQueryPtr query) {
-  VLOG(net_query) << "Resend " << query;
-  query->set_message_id(0);
-
-  if (UniqueId::extract_type(query->id()) == UniqueId::BindKey) {
-    query->set_error_resend();
-    return_query(std::move(query));
-  } else {
-    add_query(std::move(query));
-  }
-}
-
-void Session::add_query(NetQueryPtr &&net_query) {
-  CHECK(UniqueId::extract_type(net_query->id()) != UniqueId::BindKey);
-  net_query->debug(PSTRING() << get_name() << ": pending");
-  pending_queries_.push(std::move(net_query));
-}
-
-void Session::connection_send_query(ConnectionInfo *info, NetQueryPtr &&net_query, mtproto::MessageId message_id) {
-  CHECK(info->state_ == ConnectionInfo::State::Ready);
-  current_info_ = info;
-
-  if (net_query->update_is_ready()) {
-    return return_query(std::move(net_query));
-  }
-
-  Span<NetQueryRef> invoke_after = net_query->invoke_after();
-  vector<mtproto::MessageId> invoke_after_message_ids;
-  for (auto &ref : invoke_after) {
-    auto invoke_after_message_id = mtproto::MessageId(ref->message_id());
-    if (ref->session_id() != auth_data_.get_session_id() || invoke_after_message_id == mtproto::MessageId()) {
-      net_query->set_error_resend_invoke_after();
-      return return_query(std::move(net_query));
-    }
-    invoke_after_message_ids.push_back(invoke_after_message_id);
-  }
-  if (!invoke_after.empty()) {
-    if (!unknown_queries_.empty()) {
-      net_query->debug(PSTRING() << get_name() << ": wait unknown query to invoke after it");
-      pending_invoke_after_queries_.push_back(std::move(net_query));
-      return;
-    }
-  }
-
-  auto now = Time::now();
-  const bool immediately_fail_query = false;
-  if (!immediately_fail_query) {
-    net_query->debug(PSTRING() << get_name() << ": send to " << info->connection_->get_debug_str());
-    message_id = info->connection_->send_query(
-        net_query->query().clone(), net_query->gzip_flag() == NetQuery::GzipFlag::On, message_id,
-        invoke_after_message_ids, static_cast<bool>(net_query->quick_ack_promise_));
-
-    net_query->on_net_write(net_query->query().size());
-  } else {
-    if (message_id == mtproto::MessageId()) {
-      message_id = auth_data_.next_message_id(now);
-    }
-  }
-  net_query->set_message_id(message_id.get());
-  VLOG(net_query) << "Send query to connection " << net_query << tag("invoke_after", invoke_after_message_ids);
-  {
-    auto lock = net_query->lock();
-    net_query->get_data_unsafe().unknown_state_ = false;
-    net_query->get_data_unsafe().ack_state_ = 0;
-  }
-  if (!net_query->cancel_slot_.empty()) {
-    LOG(DEBUG) << "Set event for net_query cancellation for " << message_id;
-    net_query->cancel_slot_.set_event(EventCreator::raw(actor_id(), message_id.get()));
-  }
-  auto status =
-      sent_queries_.emplace(message_id, Query{message_id, std::move(net_query), main_connection_.connection_id_, now});
-  LOG_CHECK(status.second) << message_id;
-  sent_queries_list_.put(status.first->second.get_list_node());
-  if (immediately_fail_query) {
-    on_message_result_error(message_id, 401, "TEST_ERROR");
-  }
-}
-
-void Session::connection_open(ConnectionInfo *info, double now, bool ask_info) {
-  CHECK(info->state_ == ConnectionInfo::State::Empty);
-  if (!network_flag_) {
-    return;
-  }
-  if (!auth_data_.has_auth_key(now)) {
-    return;
-  }
-  info->ask_info_ = ask_info;
-
-  info->state_ = ConnectionInfo::State::Connecting;
-  info->cancellation_token_source_ = CancellationTokenSource{};
-  // NB: rely on constant location of info
-  auto promise = PromiseCreator::cancellable_lambda(
-      info->cancellation_token_source_.get_cancellation_token(),
-      [actor_id = actor_id(this), info](Result<unique_ptr<mtproto::RawConnection>> res) {
-        send_closure(actor_id, &Session::connection_open_finish, info, std::move(res));
-      });
-
-  if (cached_connection_) {
-    VLOG(dc) << "Reuse cached connection";
-    promise.set_value(std::move(cached_connection_));
-  } else {
-    VLOG(dc) << "Request new connection";
-    unique_ptr<mtproto::AuthData> auth_data;
-    if (auth_data_.use_pfs() && auth_data_.has_auth_key(now)) {
-      // auth_data = make_unique<mtproto::AuthData>(auth_data_);
-    }
-    callback_->request_raw_connection(std::move(auth_data), std::move(promise));
-  }
-
-  info->wakeup_at_ = now + 1000;
-}
-
-void Session::connection_add(unique_ptr<mtproto::RawConnection> raw_connection) {
-  VLOG(dc) << "Cache connection " << raw_connection.get();
-  cached_connection_ = std::move(raw_connection);
-  cached_connection_timestamp_ = Time::now();
-}
-
-void Session::connection_check_mode(ConnectionInfo *info) {
-  if (close_flag_ || info->state_ != ConnectionInfo::State::Ready) {
-    return;
-  }
-  if (info->mode_ != mode_) {
-    LOG(WARNING) << "Close connection because of outdated mode_";
-    connection_close(info);
-  }
-}
-
-void Session::connection_open_finish(ConnectionInfo *info,
-                                     Result<unique_ptr<mtproto::RawConnection>> r_raw_connection) {
-  if (close_flag_ || info->state_ != ConnectionInfo::State::Connecting) {
-    VLOG(dc) << "Ignore raw connection while closing";
-    return;
-  }
-  current_info_ = info;
-  if (r_raw_connection.is_error()) {
-    LOG(WARNING) << "Failed to open socket: " << r_raw_connection.error();
-    info->state_ = ConnectionInfo::State::Empty;
-    yield();
-    return;
-  }
-
-  auto raw_connection = r_raw_connection.move_as_ok();
-  VLOG(dc) << "Receive raw connection " << raw_connection.get();
-  if (raw_connection->extra().extra != network_generation_) {
-    LOG(WARNING) << "Receive RawConnection with old network_generation";
-    info->state_ = ConnectionInfo::State::Empty;
-    yield();
-    return;
-  }
-
-  Mode expected_mode =
-      raw_connection->get_transport_type().type == mtproto::TransportType::Http ? Mode::Http : Mode::Tcp;
-  if (mode_ != expected_mode) {
-    VLOG(dc) << "Change mode " << mode_ << "--->" << expected_mode;
-    mode_ = expected_mode;
-    if (info->connection_id_ == 1 && mode_ != Mode::Http) {
-      LOG(WARNING) << "Receive TCP connection for long poll connection";
-      connection_add(std::move(raw_connection));
-      info->state_ = ConnectionInfo::State::Empty;
-      yield();
-      return;
-    }
-  }
-
-  mtproto::SessionConnection::Mode mode;
-  Slice mode_name;
-  if (mode_ == Mode::Tcp) {
-    mode = mtproto::SessionConnection::Mode::Tcp;
-    mode_name = Slice("TCP");
-  } else {
-    if (info->connection_id_ == 0) {
-      mode = mtproto::SessionConnection::Mode::Http;
-      mode_name = Slice("HTTP");
-    } else {
-      mode = mtproto::SessionConnection::Mode::HttpLongPoll;
-      mode_name = Slice("LongPoll");
-    }
-  }
-  auto name = PSTRING() << get_name() << "::Connect::" << mode_name << "::" << raw_connection->extra().debug_str;
-  LOG(INFO) << "Finished to open connection " << name;
-  info->connection_ = make_unique<mtproto::SessionConnection>(mode, std::move(raw_connection), &auth_data_);
-  if (can_destroy_auth_key()) {
-    info->connection_->destroy_key();
-  }
-  info->connection_->set_online(connection_online_flag_, is_primary_);
-  info->connection_->set_name(name);
-  Scheduler::subscribe(info->connection_->get_poll_info().extract_pollable_fd(this));
-  info->mode_ = mode_;
-  info->state_ = ConnectionInfo::State::Ready;
-  info->created_at_ = Time::now();
-  info->wakeup_at_ = info->created_at_ + 10;
-  if (unknown_queries_.size() > MAX_INFLIGHT_QUERIES) {
-    LOG(ERROR) << "With current limits `Too many queries with unknown state` error must be impossible";
-    on_session_failed(Status::Error("Too many queries with unknown state"));
-    return;
-  }
-  if (info->ask_info_) {
-    for (auto &message_id : unknown_queries_) {
-      info->connection_->get_state_info(message_id);
-    }
-    for (auto &message_id : to_cancel_message_ids_) {
-      info->connection_->cancel_answer(message_id);
-    }
-    to_cancel_message_ids_.clear();
-  }
-  yield();
-}
-
-void Session::connection_flush(ConnectionInfo *info) {
-  CHECK(info->state_ == ConnectionInfo::State::Ready);
-  current_info_ = info;
-  info->wakeup_at_ = info->connection_->flush(static_cast<mtproto::SessionConnection::Callback *>(this));
-}
-
-void Session::connection_close(ConnectionInfo *info) {
-  current_info_ = info;
-  if (info->state_ != ConnectionInfo::State::Ready) {
-    return;
-  }
-  info->connection_->force_close(static_cast<mtproto::SessionConnection::Callback *>(this));
-  CHECK(info->state_ == ConnectionInfo::State::Empty);
-}
-
-bool Session::need_send_check_main_key() const {
-  return need_check_main_key_ && auth_data_.get_main_auth_key().id() != being_checked_main_auth_key_id_;
-}
-
-bool Session::connection_send_check_main_key(ConnectionInfo *info) {
-  if (!need_check_main_key_) {
-    return false;
-  }
-  uint64 key_id = auth_data_.get_main_auth_key().id();
-  if (key_id == being_checked_main_auth_key_id_) {
-    return false;
-  }
-  CHECK(info->state_ != ConnectionInfo::State::Empty);
-  LOG(INFO) << "Check main key";
-  being_checked_main_auth_key_id_ = key_id;
-  last_check_query_id_ = UniqueId::next(UniqueId::BindKey);
-  NetQueryPtr query = G()->net_query_creator().create(last_check_query_id_, nullptr, telegram_api::help_getNearestDc(),
-                                                      {}, DcId::main(), NetQuery::Type::Common, NetQuery::AuthFlag::On);
-  query->dispatch_ttl_ = 0;
-  query->set_callback(actor_shared(this));
-  connection_send_query(info, std::move(query));
-
-  return true;
-}
-
-bool Session::need_send_bind_key() const {
-  return auth_data_.use_pfs() && !auth_data_.get_bind_flag() &&
-         auth_data_.get_tmp_auth_key().id() != being_binded_tmp_auth_key_id_;
-}
-
-bool Session::need_send_query() const {
-  return !close_flag_ && !need_check_main_key_ && (!auth_data_.use_pfs() || auth_data_.get_bind_flag()) &&
-         !pending_queries_.empty() && !can_destroy_auth_key();
-}
-
-bool Session::connection_send_bind_key(ConnectionInfo *info) {
-  CHECK(info->state_ != ConnectionInfo::State::Empty);
-  uint64 key_id = auth_data_.get_tmp_auth_key().id();
-  if (key_id == being_binded_tmp_auth_key_id_) {
-    return false;
-  }
-  being_binded_tmp_auth_key_id_ = key_id;
-  last_bind_query_id_ = UniqueId::next(UniqueId::BindKey);
-
-  int64 perm_auth_key_id = auth_data_.get_main_auth_key().id();
-  int64 nonce = Random::secure_int64();
-  auto expires_at = static_cast<int32>(auth_data_.get_server_time(auth_data_.get_tmp_auth_key().expires_at()));
-  mtproto::MessageId message_id;
-  BufferSlice encrypted;
-  std::tie(message_id, encrypted) = info->connection_->encrypted_bind(perm_auth_key_id, nonce, expires_at);
-
-  LOG(INFO) << "Bind key: " << tag("tmp", key_id) << tag("perm", static_cast<uint64>(perm_auth_key_id));
-  NetQueryPtr query = G()->net_query_creator().create(
-      last_bind_query_id_, nullptr,
-      telegram_api::auth_bindTempAuthKey(perm_auth_key_id, nonce, expires_at, std::move(encrypted)), {}, DcId::main(),
-      NetQuery::Type::Common, NetQuery::AuthFlag::On);
-  query->dispatch_ttl_ = 0;
-  query->set_callback(actor_shared(this));
-  connection_send_query(info, std::move(query), message_id);
-
-  return true;
-}
-
-void Session::on_handshake_ready(Result<unique_ptr<mtproto::AuthKeyHandshake>> r_handshake) {
-  auto handshake_id = narrow_cast<HandshakeId>(get_link_token() - 1);
-  bool is_main = handshake_id == MainAuthKeyHandshake;
-  auto &info = handshake_info_[handshake_id];
-  info.flag_ = false;
-  info.actor_.reset();
-
-  if (r_handshake.is_error()) {
-    LOG(ERROR) << "Handshake failed: " << r_handshake.move_as_error();
-  } else {
-    auto handshake = r_handshake.move_as_ok();
-    if (!handshake->is_ready_for_finish()) {
-      LOG(INFO) << "Handshake is not yet ready";
-      info.handshake_ = std::move(handshake);
-    } else {
-      if (is_main) {
-        auth_data_.set_main_auth_key(handshake->release_auth_key());
-        on_auth_key_updated();
-      } else {
-        auth_data_.set_tmp_auth_key(handshake->release_auth_key());
-        if (is_main_) {
-          registered_temp_auth_key_ = TempAuthKeyWatchdog::register_auth_key_id(auth_data_.get_tmp_auth_key().id());
-        }
-        on_tmp_auth_key_updated();
-      }
-      LOG(WARNING) << "Update auth key in session_id " << auth_data_.get_session_id() << " to "
-                   << auth_data_.get_auth_key().id();
-      connection_close(&main_connection_);
-      connection_close(&long_poll_connection_);
-
-      // Salt of temporary key is different salt. Do not rewrite it
-      if (auth_data_.use_pfs() ^ is_main) {
-        auth_data_.set_server_salt(handshake->get_server_salt(), Time::now());
-        on_server_salt_updated();
-      }
-      if (auth_data_.update_server_time_difference(handshake->get_server_time_diff())) {
-        on_server_time_difference_updated(true);
-      }
-    }
-  }
-
-  loop();
-}
-
-void Session::create_gen_auth_key_actor(HandshakeId handshake_id) {
-  auto &info = handshake_info_[handshake_id];
-  if (info.flag_) {
-    return;
-  }
-  LOG(INFO) << "Create GenAuthKeyActor " << handshake_id;
-  info.flag_ = true;
-  bool is_main = handshake_id == MainAuthKeyHandshake;
-  if (!info.handshake_) {
-    auto key_validity_time = is_main && !is_cdn_ ? 0 : Random::fast(23 * 60 * 60, 24 * 60 * 60);
-    info.handshake_ = make_unique<mtproto::AuthKeyHandshake>(dc_id_, key_validity_time);
-  }
-  class AuthKeyHandshakeContext final : public mtproto::AuthKeyHandshakeContext {
-   public:
-    AuthKeyHandshakeContext(mtproto::DhCallback *dh_callback,
-                            std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key)
-        : dh_callback_(dh_callback), public_rsa_key_(std::move(public_rsa_key)) {
-    }
-    mtproto::DhCallback *get_dh_callback() final {
-      return dh_callback_;
-    }
-    mtproto::PublicRsaKeyInterface *get_public_rsa_key_interface() final {
-      return public_rsa_key_.get();
-    }
-
-   private:
-    mtproto::DhCallback *dh_callback_;
-    std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key_;
-  };
-
-  info.actor_ = create_actor<detail::GenAuthKeyActor>(
-      PSLICE() << get_name() << "::GenAuthKey", get_name(), std::move(info.handshake_),
-      td::make_unique<AuthKeyHandshakeContext>(DhCache::instance(), shared_auth_data_->public_rsa_key()),
-      PromiseCreator::lambda(
-          [actor_id = actor_id(this), guard = callback_](Result<unique_ptr<mtproto::RawConnection>> r_connection) {
-            if (r_connection.is_error()) {
-              if (r_connection.error().code() != 1) {
-                LOG(WARNING) << "Failed to open connection: " << r_connection.error();
-              }
-              return;
-            }
-            send_closure(actor_id, &Session::connection_add, r_connection.move_as_ok());
-          }),
-      PromiseCreator::lambda([self = actor_shared(this, handshake_id + 1),
-                              handshake_perf = PerfWarningTimer("handshake", 1000.1),
-                              guard = callback_](Result<unique_ptr<mtproto::AuthKeyHandshake>> handshake) mutable {
-        // later is just to avoid lost hangup
-        send_closure_later(std::move(self), &Session::on_handshake_ready, std::move(handshake));
-      }),
-      callback_);
-}
-
-void Session::auth_loop(double now) {
-  if (can_destroy_auth_key()) {
-    return;
-  }
-  if (auth_data_.need_main_auth_key()) {
-    create_gen_auth_key_actor(MainAuthKeyHandshake);
-  }
-  if (auth_data_.need_tmp_auth_key(now, persist_tmp_auth_key_ ? 2 * 60 : 60 * 60)) {
-    create_gen_auth_key_actor(TmpAuthKeyHandshake);
-  }
-}
-
-void Session::timeout_expired() {
-  send_closure_later(actor_id(this), &Session::loop);
-}
-
-void Session::loop() {
-  if (!was_on_network_) {
-    return;
-  }
-  auto now = Time::now();
-
-  if (cached_connection_timestamp_ < now - 10) {
-    cached_connection_.reset();
-  }
-  if (!is_main_ && !has_queries() && !need_destroy_auth_key_ && last_activity_timestamp_ < now - ACTIVITY_TIMEOUT) {
-    on_session_failed(Status::OK());
-  }
-
-  auth_loop(now);
-  connection_online_update(now, false);
-
-  double wakeup_at = 0;
-  main_connection_.wakeup_at_ = 0;
-  long_poll_connection_.wakeup_at_ = 0;
-
-  // NB: order is crucial. First long_poll_connection, then main_connection
-  // Otherwise, queries could be sent with big delay
-
-  connection_check_mode(&main_connection_);
-  connection_check_mode(&long_poll_connection_);
-  if (mode_ == Mode::Http) {
-    if (long_poll_connection_.state_ == ConnectionInfo::State::Ready) {
-      connection_flush(&long_poll_connection_);
-    }
-    if (!close_flag_ && long_poll_connection_.state_ == ConnectionInfo::State::Empty) {
-      connection_open(&long_poll_connection_, now);
-    }
-    relax_timeout_at(&wakeup_at, long_poll_connection_.wakeup_at_);
-  }
-
-  if (main_connection_.state_ == ConnectionInfo::State::Ready) {
-    // do not send queries before we have key and e.t.c
-    // do not send queries before tmp_key is bound
-    bool need_flush = true;
-    while (main_connection_.state_ == ConnectionInfo::State::Ready) {
-      if (auth_data_.is_ready(now)) {
-        if (need_send_query()) {
-          while (!pending_queries_.empty() && sent_queries_.size() < MAX_INFLIGHT_QUERIES) {
-            auto query = pending_queries_.pop();
-            connection_send_query(&main_connection_, std::move(query));
-            need_flush = true;
-          }
-        }
-        if (need_send_bind_key()) {
-          // send auth.bindTempAuthKey
-          connection_send_bind_key(&main_connection_);
-          need_flush = true;
-        }
-        if (need_send_check_main_key()) {
-          connection_send_check_main_key(&main_connection_);
-          need_flush = true;
-        }
-      }
-      if (need_flush) {
-        connection_flush(&main_connection_);
-        need_flush = false;
-      } else {
-        break;
-      }
-    }
-  }
-  if (!close_flag_ && main_connection_.state_ == ConnectionInfo::State::Empty) {
-    connection_open(&main_connection_, now, true /*send ask_info*/);
-  }
-
-  connection_online_update(now, false);  // has_queries() could have been changed
-
-  relax_timeout_at(&wakeup_at, main_connection_.wakeup_at_);
-
-  if (wakeup_at != 0) {
-    set_timeout_at(wakeup_at);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/Session.h b/third-party/td/td/td/telegram/net/Session.h
deleted file mode 100644
index a557ffb1ac..0000000000
--- a/third-party/td/td/td/telegram/net/Session.h
+++ /dev/null
@@ -1,289 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/AuthDataShared.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/TempAuthKeyWatchdog.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/ConnectionManager.h"
-#include "td/mtproto/Handshake.h"
-#include "td/mtproto/MessageId.h"
-#include "td/mtproto/SessionConnection.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/CancellationToken.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/List.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/VectorQueue.h"
-
-#include <array>
-#include <deque>
-#include <map>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-namespace mtproto {
-class RawConnection;
-}  // namespace mtproto
-
-namespace detail {
-class GenAuthKeyActor;
-}  // namespace detail
-
-class Session final
-    : public NetQueryCallback
-    , private mtproto::SessionConnection::Callback {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-    virtual void on_failed() = 0;
-    virtual void on_closed() = 0;
-    virtual void request_raw_connection(unique_ptr<mtproto::AuthData> auth_data,
-                                        Promise<unique_ptr<mtproto::RawConnection>>) = 0;
-    virtual void on_tmp_auth_key_updated(mtproto::AuthKey auth_key) = 0;
-    virtual void on_server_salt_updated(vector<mtproto::ServerSalt> server_salts) = 0;
-    virtual void on_update(BufferSlice &&update, uint64 auth_key_id) = 0;
-    virtual void on_result(NetQueryPtr net_query) = 0;
-  };
-
-  Session(unique_ptr<Callback> callback, std::shared_ptr<AuthDataShared> shared_auth_data, int32 raw_dc_id, int32 dc_id,
-          bool is_primary, bool is_main, bool use_pfs, bool persist_tmp_auth_key, bool is_cdn,
-          bool need_destroy_auth_key, const mtproto::AuthKey &tmp_auth_key,
-          const vector<mtproto::ServerSalt> &server_salts);
-
-  void send(NetQueryPtr &&query);
-
-  void close();
-
-  static bool is_high_loaded();
-
- private:
-  struct Query final : private ListNode {
-    mtproto::MessageId container_message_id_;
-    NetQueryPtr net_query_;
-
-    bool is_acknowledged_ = false;
-    bool is_unknown_ = false;
-
-    const int8 connection_id_;
-    const double sent_at_;
-
-    Query(mtproto::MessageId message_id, NetQueryPtr &&net_query, int8 connection_id, double sent_at)
-        : container_message_id_(message_id)
-        , net_query_(std::move(net_query))
-        , connection_id_(connection_id)
-        , sent_at_(sent_at) {
-    }
-
-    ListNode *get_list_node() {
-      return static_cast<ListNode *>(this);
-    }
-    static Query *from_list_node(ListNode *list_node) {
-      return static_cast<Query *>(list_node);
-    }
-  };
-
-  // When connection is closed, mark all queries without ack as unknown.
-  // Ask state of all unknown queries when new connection is created.
-  //
-  // Just re-ask answer_message_id each time we get information about it.
-  // Though mtproto::Connection must ensure delivery of such query.
-
-  const int32 raw_dc_id_;  // numerical datacenter ID, i.e. 2
-  const int32 dc_id_;      // unique datacenter ID, i.e. -10002
-  const bool is_primary_;  // true for primary Sessions to all DCs
-  const bool is_main_;     // true only for the primary Session(s) to the main DC
-  const bool persist_tmp_auth_key_;
-  const bool is_cdn_;
-  const bool need_destroy_auth_key_;
-  bool was_on_network_ = false;
-  bool network_flag_ = false;
-  bool online_flag_ = false;
-  bool logging_out_flag_ = false;
-  bool connection_online_flag_ = false;
-  enum class Mode : int8 { Tcp, Http } mode_ = Mode::Tcp;
-  uint32 network_generation_ = 0;
-  uint64 being_binded_tmp_auth_key_id_ = 0;
-  uint64 being_checked_main_auth_key_id_ = 0;
-  uint64 last_bind_query_id_ = 0;
-  uint64 last_check_query_id_ = 0;
-  double last_activity_timestamp_ = 0;
-  double last_success_timestamp_ = 0;       // time when auth_key and Session definitely was valid
-  double last_bind_success_timestamp_ = 0;  // time when auth_key and Session definitely was valid and authorized
-  size_t dropped_size_ = 0;
-
-  FlatHashSet<mtproto::MessageId, mtproto::MessageIdHash> unknown_queries_;
-  vector<mtproto::MessageId> to_cancel_message_ids_;
-
-  class PendingQueries {
-    VectorQueue<NetQueryPtr> regular_queries_;
-    VectorQueue<NetQueryPtr> high_priority_queries_;
-
-   public:
-    void push(NetQueryPtr query);
-
-    NetQueryPtr pop();
-
-    bool empty() const;
-  };
-  PendingQueries pending_queries_;
-  std::map<mtproto::MessageId, Query> sent_queries_;
-  std::deque<NetQueryPtr> pending_invoke_after_queries_;
-  ListNode sent_queries_list_;
-
-  struct ConnectionInfo {
-    int8 connection_id_ = 0;
-    Mode mode_ = Mode::Tcp;
-    enum class State : int8 { Empty, Connecting, Ready } state_ = State::Empty;
-    CancellationTokenSource cancellation_token_source_;
-    unique_ptr<mtproto::SessionConnection> connection_;
-    bool ask_info_ = false;
-    double wakeup_at_ = 0;
-    double created_at_ = 0;
-  };
-
-  ConnectionInfo *current_info_;
-  ConnectionInfo main_connection_;
-  ConnectionInfo long_poll_connection_;
-  mtproto::ConnectionManager::ConnectionToken connection_token_;
-
-  double cached_connection_timestamp_ = 0;
-  unique_ptr<mtproto::RawConnection> cached_connection_;
-
-  std::shared_ptr<Callback> callback_;
-  bool use_pfs_{false};
-  bool need_check_main_key_{false};
-  TempAuthKeyWatchdog::RegisteredAuthKey registered_temp_auth_key_;
-  std::shared_ptr<AuthDataShared> shared_auth_data_;
-  bool close_flag_ = false;
-
-  static constexpr double ACTIVITY_TIMEOUT = 60 * 5;
-  static constexpr size_t MAX_INFLIGHT_QUERIES = 1024;
-
-  struct ContainerInfo {
-    size_t ref_cnt;
-    vector<mtproto::MessageId> message_ids;
-  };
-  FlatHashMap<mtproto::MessageId, ContainerInfo, mtproto::MessageIdHash> sent_containers_;
-
-  friend class GenAuthKeyActor;
-  struct HandshakeInfo {
-    bool flag_ = false;
-    ActorOwn<detail::GenAuthKeyActor> actor_;
-    unique_ptr<mtproto::AuthKeyHandshake> handshake_;
-  };
-  enum HandshakeId : int32 { MainAuthKeyHandshake = 0, TmpAuthKeyHandshake = 1 };
-  std::array<HandshakeInfo, 2> handshake_info_;
-
-  double wakeup_at_;
-
-  // mtproto::AuthData should be the last field, because it's size is about 32 KB
-  mtproto::AuthData auth_data_;
-
-  void on_handshake_ready(Result<unique_ptr<mtproto::AuthKeyHandshake>> r_handshake);
-  void create_gen_auth_key_actor(HandshakeId handshake_id);
-  void auth_loop(double now);
-
-  // mtproto::Connection::Callback
-  void on_connected() final;
-  void on_closed(Status status) final;
-
-  Status on_pong(double ping_time, double pong_time, double current_time) final;
-
-  void on_network(bool network_flag, uint32 network_generation);
-  void on_online(bool online_flag);
-  void on_logging_out(bool logging_out_flag);
-
-  void on_auth_key_updated();
-  void on_tmp_auth_key_updated();
-
-  void on_server_salt_updated() final;
-  void on_server_time_difference_updated(bool force) final;
-
-  void on_new_session_created(uint64 unique_id, mtproto::MessageId first_message_id) final;
-  void on_session_failed(Status status) final;
-
-  void on_container_sent(mtproto::MessageId container_message_id, vector<mtproto::MessageId> message_ids) final;
-
-  Status on_update(BufferSlice packet) final;
-
-  void on_message_ack(mtproto::MessageId message_id) final;
-  Status on_message_result_ok(mtproto::MessageId message_id, BufferSlice packet, size_t original_size) final;
-  void on_message_result_error(mtproto::MessageId message_id, int error_code, string message) final;
-  void on_message_failed(mtproto::MessageId message_id, Status status) final;
-
-  void on_message_info(mtproto::MessageId message_id, int32 state, mtproto::MessageId answer_message_id,
-                       int32 answer_size, int32 source) final;
-
-  Status on_destroy_auth_key() final;
-
-  void flush_pending_invoke_after_queries();
-  bool has_queries() const;
-
-  void dec_container(mtproto::MessageId container_message_id, const Query &query);
-  void cleanup_container(mtproto::MessageId container_message_id, const Query &query);
-  void mark_as_known(mtproto::MessageId message_id, Query &query);
-  void mark_as_unknown(mtproto::MessageId message_id, Query &query);
-
-  void on_message_ack_impl(mtproto::MessageId container_message_id, int32 type);
-  void on_message_ack_impl_inner(mtproto::MessageId message_id, int32 type, bool in_container);
-  void on_message_failed_inner(mtproto::MessageId message_id, bool in_container);
-
-  // send NetQueryPtr to parent
-  void return_query(NetQueryPtr &&query);
-  void add_query(NetQueryPtr &&net_query);
-  void resend_query(NetQueryPtr query);
-
-  void connection_open(ConnectionInfo *info, double now, bool ask_info = false);
-  void connection_add(unique_ptr<mtproto::RawConnection> raw_connection);
-  void connection_check_mode(ConnectionInfo *info);
-  void connection_open_finish(ConnectionInfo *info, Result<unique_ptr<mtproto::RawConnection>> r_raw_connection);
-
-  void connection_online_update(double now, bool force);
-  void connection_close(ConnectionInfo *info);
-  void connection_flush(ConnectionInfo *info);
-  void connection_send_query(ConnectionInfo *info, NetQueryPtr &&net_query, mtproto::MessageId message_id = {});
-  bool need_send_bind_key() const;
-  bool need_send_query() const;
-  bool can_destroy_auth_key() const;
-  bool connection_send_bind_key(ConnectionInfo *info);
-  bool need_send_check_main_key() const;
-  bool connection_send_check_main_key(ConnectionInfo *info);
-
-  void on_result(NetQueryPtr query) final;
-
-  void on_bind_result(NetQueryPtr query);
-  void on_check_key_result(NetQueryPtr query);
-
-  void start_up() final;
-  void timeout_expired() final;
-  void loop() final;
-  void hangup() final;
-  void raw_event(const Event::Raw &event) final;
-
-  friend StringBuilder &operator<<(StringBuilder &sb, Mode mode) {
-    return sb << (mode == Mode::Http ? "HTTP" : "TCP");
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/SessionMultiProxy.cpp b/third-party/td/td/td/telegram/net/SessionMultiProxy.cpp
deleted file mode 100644
index 2109276143..0000000000
--- a/third-party/td/td/td/telegram/net/SessionMultiProxy.cpp
+++ /dev/null
@@ -1,179 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/SessionMultiProxy.h"
-
-#include "td/telegram/net/SessionProxy.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-SessionMultiProxy::~SessionMultiProxy() = default;
-
-SessionMultiProxy::SessionMultiProxy(int32 session_count, std::shared_ptr<AuthDataShared> shared_auth_data,
-                                     bool is_primary, bool is_main, bool use_pfs, bool allow_media_only, bool is_media,
-                                     bool is_cdn)
-    : session_count_(session_count)
-    , auth_data_(std::move(shared_auth_data))
-    , is_primary_(is_primary)
-    , is_main_(is_main)
-    , use_pfs_(use_pfs)
-    , allow_media_only_(allow_media_only)
-    , is_media_(is_media)
-    , is_cdn_(is_cdn) {
-  if (allow_media_only_) {
-    CHECK(is_media_);
-  }
-}
-
-void SessionMultiProxy::send(NetQueryPtr query) {
-  size_t pos = 0;
-  if (query->auth_flag() == NetQuery::AuthFlag::On) {
-    size_t session_rand = query->session_rand();
-    if (session_rand) {
-      pos = session_rand % sessions_.size();
-    } else {
-      size_t equal_count = 1;
-      int min_query_count = sessions_[pos].query_count;
-      for (size_t i = 1; i < sessions_.size(); i++) {
-        if (sessions_[i].query_count < min_query_count) {
-          pos = i;
-          min_query_count = sessions_[pos].query_count;
-          equal_count = 1;
-        } else if (sessions_[i].query_count == min_query_count) {
-          equal_count++;
-          if (Random::fast_uint32() % equal_count == 0) {
-            pos = i;
-          }
-        }
-      }
-    }
-  }
-  // query->debug(PSTRING() << get_name() << ": send to proxy #" << pos);
-  sessions_[pos].query_count++;
-  send_closure(sessions_[pos].proxy, &SessionProxy::send, std::move(query));
-}
-
-void SessionMultiProxy::update_main_flag(bool is_main) {
-  LOG(INFO) << "Update is_main to " << is_main;
-  is_main_ = is_main;
-  for (auto &session : sessions_) {
-    send_closure(session.proxy, &SessionProxy::update_main_flag, is_main);
-  }
-}
-
-void SessionMultiProxy::destroy_auth_key() {
-  update_options(1, false, true);
-}
-
-void SessionMultiProxy::update_session_count(int32 session_count) {
-  update_options(session_count, use_pfs_, need_destroy_auth_key_);
-}
-
-void SessionMultiProxy::update_use_pfs(bool use_pfs) {
-  update_options(session_count_, use_pfs, need_destroy_auth_key_);
-}
-
-void SessionMultiProxy::update_options(int32 session_count, bool use_pfs, bool need_destroy_auth_key) {
-  if (need_destroy_auth_key_) {
-    LOG(INFO) << "Ignore session option changes while destroying auth key";
-    return;
-  }
-
-  bool is_changed = false;
-
-  session_count = clamp(session_count, 1, 100);
-  if (session_count != session_count_) {
-    session_count_ = session_count;
-    LOG(INFO) << "Update session_count to " << session_count_;
-    is_changed = true;
-  }
-
-  if (use_pfs != use_pfs_) {
-    bool old_pfs_flag = get_pfs_flag();
-    use_pfs_ = use_pfs;
-    if (old_pfs_flag != get_pfs_flag()) {
-      LOG(INFO) << "Update use_pfs to " << use_pfs_;
-      is_changed = true;
-    }
-  }
-
-  if (need_destroy_auth_key) {
-    need_destroy_auth_key_ = need_destroy_auth_key;
-    is_changed = true;
-    LOG(WARNING) << "Destroy auth key";
-  }
-
-  if (is_changed) {
-    init();
-  }
-}
-
-void SessionMultiProxy::update_mtproto_header() {
-  for (auto &session : sessions_) {
-    send_closure_later(session.proxy, &SessionProxy::update_mtproto_header);
-  }
-}
-
-void SessionMultiProxy::start_up() {
-  init();
-}
-
-bool SessionMultiProxy::get_pfs_flag() const {
-  return use_pfs_ && !is_cdn_;
-}
-
-void SessionMultiProxy::init() {
-  sessions_generation_++;
-  sessions_.clear();
-  if (is_main_ && session_count_ > 1) {
-    LOG(WARNING) << tag("session_count", session_count_);
-  }
-  for (int32 i = 0; i < session_count_; i++) {
-    string name = PSTRING() << "Session" << get_name().substr(Slice("SessionMulti").size())
-                            << format::cond(session_count_ > 1, format::concat("#", i));
-
-    SessionInfo info;
-    class Callback final : public SessionProxy::Callback {
-     public:
-      Callback(ActorId<SessionMultiProxy> parent, uint32 generation, int32 session_id)
-          : parent_(parent), generation_(generation), session_id_(session_id) {
-      }
-      void on_query_finished() final {
-        send_closure(parent_, &SessionMultiProxy::on_query_finished, generation_, session_id_);
-      }
-
-     private:
-      ActorId<SessionMultiProxy> parent_;
-      uint32 generation_;
-      int32 session_id_;
-    };
-    info.proxy =
-        create_actor<SessionProxy>(name, make_unique<Callback>(actor_id(this), sessions_generation_, i), auth_data_,
-                                   is_primary_, is_main_, allow_media_only_, is_media_, get_pfs_flag(),
-                                   session_count_ > 1 && is_primary_, is_cdn_, need_destroy_auth_key_ && i == 0);
-    sessions_.push_back(std::move(info));
-  }
-}
-
-void SessionMultiProxy::on_query_finished(uint32 generation, int session_id) {
-  if (generation != sessions_generation_) {
-    return;
-  }
-  CHECK(static_cast<size_t>(session_id) < sessions_.size());
-  auto &query_count = sessions_[session_id].query_count;
-  CHECK(query_count > 0);
-  query_count--;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/SessionMultiProxy.h b/third-party/td/td/td/telegram/net/SessionMultiProxy.h
deleted file mode 100644
index 3b21b438dd..0000000000
--- a/third-party/td/td/td/telegram/net/SessionMultiProxy.h
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/AuthDataShared.h"
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/actor/actor.h"
-
-#include <memory>
-
-namespace td {
-
-class SessionProxy;
-
-class SessionMultiProxy final : public Actor {
- public:
-  SessionMultiProxy(int32 session_count, std::shared_ptr<AuthDataShared> shared_auth_data, bool is_primary,
-                    bool is_main, bool use_pfs, bool allow_media_only, bool is_media, bool is_cdn);
-  SessionMultiProxy(const SessionMultiProxy &) = delete;
-  SessionMultiProxy &operator=(const SessionMultiProxy &) = delete;
-  ~SessionMultiProxy() final;
-
-  void send(NetQueryPtr query);
-  void update_main_flag(bool is_main);
-
-  void update_session_count(int32 session_count);
-  void update_use_pfs(bool use_pfs);
-  void update_options(int32 session_count, bool use_pfs, bool need_destroy_auth_key);
-  void update_mtproto_header();
-
-  void destroy_auth_key();
-
- private:
-  int32 session_count_ = 0;
-  std::shared_ptr<AuthDataShared> auth_data_;
-  const bool is_primary_;
-  bool is_main_ = false;
-  bool use_pfs_ = false;
-  bool allow_media_only_ = false;
-  bool is_media_ = false;
-  bool is_cdn_ = false;
-  bool need_destroy_auth_key_ = false;
-  struct SessionInfo {
-    ActorOwn<SessionProxy> proxy;
-    int query_count{0};
-  };
-  uint32 sessions_generation_{0};
-  std::vector<SessionInfo> sessions_;
-
-  void start_up() final;
-  void init();
-
-  bool get_pfs_flag() const;
-
-  void on_query_finished(uint32 generation, int session_id);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/SessionProxy.cpp b/third-party/td/td/td/telegram/net/SessionProxy.cpp
deleted file mode 100644
index 70b4745c6f..0000000000
--- a/third-party/td/td/td/telegram/net/SessionProxy.cpp
+++ /dev/null
@@ -1,281 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/net/SessionProxy.h"
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/AuthKeyState.h"
-#include "td/telegram/net/ConnectionCreator.h"
-#include "td/telegram/net/DcId.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/net/Session.h"
-#include "td/telegram/Td.h"
-#include "td/telegram/TdDb.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UniqueId.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-
-namespace td {
-
-namespace mtproto {
-class RawConnection;
-}  // namespace mtproto
-
-class SessionCallback final : public Session::Callback {
- public:
-  SessionCallback(ActorShared<SessionProxy> parent, DcId dc_id, bool allow_media_only, bool is_media, uint32 hash)
-      : parent_(std::move(parent))
-      , dc_id_(dc_id)
-      , allow_media_only_(allow_media_only)
-      , is_media_(is_media)
-      , hash_(hash) {
-  }
-
-  void on_failed() final {
-    send_closure(parent_, &SessionProxy::on_failed);
-  }
-  void on_closed() final {
-    send_closure(parent_, &SessionProxy::on_closed);
-  }
-  void request_raw_connection(unique_ptr<mtproto::AuthData> auth_data,
-                              Promise<unique_ptr<mtproto::RawConnection>> promise) final {
-    send_closure(G()->connection_creator(), &ConnectionCreator::request_raw_connection, dc_id_, allow_media_only_,
-                 is_media_, std::move(promise), hash_, std::move(auth_data));
-  }
-
-  void on_tmp_auth_key_updated(mtproto::AuthKey auth_key) final {
-    send_closure(parent_, &SessionProxy::on_tmp_auth_key_updated, std::move(auth_key));
-  }
-
-  void on_server_salt_updated(std::vector<mtproto::ServerSalt> server_salts) final {
-    send_closure(parent_, &SessionProxy::on_server_salt_updated, std::move(server_salts));
-  }
-
-  void on_update(BufferSlice &&update, uint64 auth_key_id) final {
-    TlBufferParser parser(&update);
-    auto updates = telegram_api::Updates::fetch(parser);
-    parser.fetch_end();
-    if (parser.get_error()) {
-      LOG(ERROR) << "Failed to fetch update: " << parser.get_error() << format::as_hex_dump<4>(update.as_slice());
-      updates = nullptr;
-    }
-    send_closure_later(G()->td(), &Td::on_update, std::move(updates), auth_key_id);
-  }
-
-  void on_result(NetQueryPtr query) final {
-    if (UniqueId::extract_type(query->id()) != UniqueId::BindKey) {
-      send_closure(parent_, &SessionProxy::on_query_finished);
-    }
-    G()->net_query_dispatcher().dispatch(std::move(query));
-  }
-
- private:
-  ActorShared<SessionProxy> parent_;
-  DcId dc_id_;
-  bool allow_media_only_ = false;
-  bool is_media_ = false;
-  uint32 hash_ = 0;
-};
-
-SessionProxy::SessionProxy(unique_ptr<Callback> callback, std::shared_ptr<AuthDataShared> shared_auth_data,
-                           bool is_primary, bool is_main, bool allow_media_only, bool is_media, bool use_pfs,
-                           bool persist_tmp_auth_key, bool is_cdn, bool need_destroy_auth_key)
-    : callback_(std::move(callback))
-    , auth_data_(std::move(shared_auth_data))
-    , is_primary_(is_primary)
-    , is_main_(is_main)
-    , allow_media_only_(allow_media_only)
-    , is_media_(is_media)
-    , use_pfs_(use_pfs)
-    , persist_tmp_auth_key_(use_pfs && persist_tmp_auth_key)
-    , is_cdn_(is_cdn)
-    , need_destroy_auth_key_(need_destroy_auth_key) {
-}
-
-void SessionProxy::start_up() {
-  class Listener final : public AuthDataShared::Listener {
-   public:
-    explicit Listener(ActorShared<SessionProxy> session_proxy) : session_proxy_(std::move(session_proxy)) {
-    }
-    bool notify() final {
-      if (!session_proxy_.is_alive()) {
-        return false;
-      }
-      send_closure(session_proxy_, &SessionProxy::update_auth_key_state);
-      return true;
-    }
-
-   private:
-    ActorShared<SessionProxy> session_proxy_;
-  };
-  auth_key_state_ = get_auth_key_state(auth_data_->get_auth_key());
-  auth_data_->add_auth_key_listener(make_unique<Listener>(actor_shared(this)));
-
-  string saved_auth_key = G()->td_db()->get_binlog_pmc()->get(tmp_auth_key_key());
-  if (!saved_auth_key.empty()) {
-    if (persist_tmp_auth_key_) {
-      unserialize(tmp_auth_key_, saved_auth_key).ensure();
-      if (tmp_auth_key_.expires_at() < Time::now()) {
-        tmp_auth_key_ = {};
-      } else {
-        LOG(WARNING) << "Loaded tmp_auth_key " << tmp_auth_key_.id() << ": " << get_auth_key_state(tmp_auth_key_);
-      }
-    } else {
-      LOG(WARNING) << "Drop saved tmp_auth_key";
-      G()->td_db()->get_binlog_pmc()->erase(tmp_auth_key_key());
-    }
-  }
-  open_session();
-}
-
-void SessionProxy::tear_down() {
-  for (auto &query : pending_queries_) {
-    query->resend();
-    callback_->on_query_finished();
-    G()->net_query_dispatcher().dispatch(std::move(query));
-  }
-  pending_queries_.clear();
-}
-
-void SessionProxy::send(NetQueryPtr query) {
-  if (query->auth_flag() == NetQuery::AuthFlag::On && auth_key_state_ != AuthKeyState::OK) {
-    query->debug(PSTRING() << get_name() << ": wait for auth");
-    pending_queries_.emplace_back(std::move(query));
-    return;
-  }
-  open_session(true);
-  query->debug(PSTRING() << get_name() << ": sent to session");
-  send_closure(session_, &Session::send, std::move(query));
-}
-
-void SessionProxy::update_main_flag(bool is_main) {
-  if (is_main_ == is_main) {
-    return;
-  }
-  LOG(INFO) << "Update is_main to " << is_main;
-  is_main_ = is_main;
-  close_session("update_main_flag");
-  open_session();
-}
-
-void SessionProxy::on_failed() {
-  if (session_generation_ != get_link_token()) {
-    return;
-  }
-  close_session("on_failed");
-  open_session();
-}
-
-void SessionProxy::update_mtproto_header() {
-  close_session("update_mtproto_header");
-  open_session();
-}
-
-void SessionProxy::on_closed() {
-}
-
-void SessionProxy::close_session(const char *source) {
-  LOG(INFO) << "Close session from " << source;
-  send_closure(std::move(session_), &Session::close);
-  session_generation_++;
-}
-
-void SessionProxy::open_session(bool force) {
-  if (!session_.empty()) {
-    return;
-  }
-  // There are several assumption that make this code OK
-  // 1. All unauthorized query will be sent into the same SessionProxy
-  // 2. All authorized query are delayed before we have authorization
-  // So only one SessionProxy will be active before we have authorization key
-  auto should_open = [&] {
-    if (force) {
-      return true;
-    }
-    if (need_destroy_auth_key_) {
-      return auth_key_state_ != AuthKeyState::Empty;
-    }
-    if (is_main_) {
-      return true;
-    }
-    if (auth_key_state_ != AuthKeyState::OK) {
-      return false;
-    }
-    return !pending_queries_.empty();
-  }();
-  if (!should_open) {
-    return;
-  }
-
-  CHECK(session_.empty());
-  auto dc_id = auth_data_->dc_id();
-  string name = PSTRING() << "Session" << get_name().substr(Slice("SessionProxy").size());
-  string hash_string = PSTRING() << name << " " << dc_id.get_raw_id() << " " << allow_media_only_;
-  auto hash = Hash<string>()(hash_string);
-  int32 raw_dc_id = dc_id.get_raw_id();
-  int32 int_dc_id = raw_dc_id;
-  if (G()->is_test_dc()) {
-    int_dc_id += 10000;
-  }
-  if (allow_media_only_ && !is_cdn_) {
-    int_dc_id = -int_dc_id;
-  }
-  session_ = create_actor<Session>(
-      name,
-      make_unique<SessionCallback>(actor_shared(this, session_generation_), dc_id, allow_media_only_, is_media_, hash),
-      auth_data_, raw_dc_id, int_dc_id, is_primary_, is_main_, use_pfs_, persist_tmp_auth_key_, is_cdn_,
-      need_destroy_auth_key_, tmp_auth_key_, server_salts_);
-}
-
-void SessionProxy::update_auth_key_state() {
-  auto old_auth_key_state = auth_key_state_;
-  auth_key_state_ = get_auth_key_state(auth_data_->get_auth_key());
-  if (auth_key_state_ != old_auth_key_state && old_auth_key_state == AuthKeyState::OK) {
-    close_session("update_auth_key_state");
-  }
-  open_session();
-  if (session_.empty() || auth_key_state_ != AuthKeyState::OK) {
-    return;
-  }
-  for (auto &query : pending_queries_) {
-    query->debug(PSTRING() << get_name() << ": sent to session");
-    send_closure(session_, &Session::send, std::move(query));
-  }
-  pending_queries_.clear();
-}
-
-void SessionProxy::on_tmp_auth_key_updated(mtproto::AuthKey auth_key) {
-  LOG(WARNING) << "Have tmp_auth_key " << auth_key.id() << ": " << get_auth_key_state(auth_key);
-  tmp_auth_key_ = std::move(auth_key);
-  if (persist_tmp_auth_key_) {
-    G()->td_db()->get_binlog_pmc()->set(tmp_auth_key_key(), serialize(tmp_auth_key_));
-  }
-}
-
-string SessionProxy::tmp_auth_key_key() const {
-  return PSTRING() << "tmp_auth" << get_name();
-}
-
-void SessionProxy::on_server_salt_updated(std::vector<mtproto::ServerSalt> server_salts) {
-  server_salts_ = std::move(server_salts);
-}
-
-void SessionProxy::on_query_finished() {
-  callback_->on_query_finished();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/SessionProxy.h b/third-party/td/td/td/telegram/net/SessionProxy.h
deleted file mode 100644
index 4bb2da33c9..0000000000
--- a/third-party/td/td/td/telegram/net/SessionProxy.h
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/net/AuthDataShared.h"
-#include "td/telegram/net/AuthKeyState.h"
-#include "td/telegram/net/NetQuery.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/AuthKey.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-
-#include <memory>
-
-namespace td {
-
-class Session;
-
-class SessionProxy final : public Actor {
- public:
-  friend class SessionCallback;
-  class Callback {
-   public:
-    virtual ~Callback() = default;
-    virtual void on_query_finished() = 0;
-  };
-
-  SessionProxy(unique_ptr<Callback> callback, std::shared_ptr<AuthDataShared> shared_auth_data, bool is_primary,
-               bool is_main, bool allow_media_only, bool is_media, bool use_pfs, bool persist_tmp_auth_key, bool is_cdn,
-               bool need_destroy_auth_key);
-
-  void send(NetQueryPtr query);
-
-  void update_main_flag(bool is_main);
-
-  void update_mtproto_header();
-
- private:
-  unique_ptr<Callback> callback_;
-  std::shared_ptr<AuthDataShared> auth_data_;
-  AuthKeyState auth_key_state_ = AuthKeyState::Empty;
-  const bool is_primary_;
-  bool is_main_;
-  bool allow_media_only_;
-  bool is_media_;
-  bool use_pfs_;
-  bool persist_tmp_auth_key_;
-  mtproto::AuthKey tmp_auth_key_;
-  std::vector<mtproto::ServerSalt> server_salts_;
-  bool is_cdn_;
-  bool need_destroy_auth_key_;
-  ActorOwn<Session> session_;
-  std::vector<NetQueryPtr> pending_queries_;
-  uint64 session_generation_ = 1;
-
-  void on_failed();
-  void on_closed();
-  void close_session(const char *source);
-  void open_session(bool force = false);
-
-  void update_auth_key_state();
-  void on_tmp_auth_key_updated(mtproto::AuthKey auth_key);
-  void on_server_salt_updated(std::vector<mtproto::ServerSalt> server_salts);
-
-  void on_query_finished();
-
-  string tmp_auth_key_key() const;
-
-  void start_up() final;
-  void tear_down() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/net/TempAuthKeyWatchdog.h b/third-party/td/td/td/telegram/net/TempAuthKeyWatchdog.h
deleted file mode 100644
index dae330a23e..0000000000
--- a/third-party/td/td/td/telegram/net/TempAuthKeyWatchdog.h
+++ /dev/null
@@ -1,150 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/telegram/Global.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/net/NetQueryDispatcher.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Time.h"
-
-#include <map>
-
-namespace td {
-
-class TempAuthKeyWatchdog final : public NetQueryCallback {
-  class RegisteredAuthKeyImpl {
-   public:
-    explicit RegisteredAuthKeyImpl(int64 auth_key_id)
-        : watchdog_(G()->temp_auth_key_watchdog()), auth_key_id_(auth_key_id) {
-    }
-    RegisteredAuthKeyImpl(const RegisteredAuthKeyImpl &) = delete;
-    RegisteredAuthKeyImpl &operator=(const RegisteredAuthKeyImpl &) = delete;
-    RegisteredAuthKeyImpl(RegisteredAuthKeyImpl &&) = delete;
-    RegisteredAuthKeyImpl &operator=(RegisteredAuthKeyImpl &&) = delete;
-    ~RegisteredAuthKeyImpl() {
-      send_closure(watchdog_, &TempAuthKeyWatchdog::unregister_auth_key_id_impl, auth_key_id_);
-    }
-
-   private:
-    ActorId<TempAuthKeyWatchdog> watchdog_;
-    int64 auth_key_id_;
-  };
-
- public:
-  explicit TempAuthKeyWatchdog(ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-
-  using RegisteredAuthKey = unique_ptr<RegisteredAuthKeyImpl>;
-
-  static RegisteredAuthKey register_auth_key_id(int64 id) {
-    send_closure(G()->temp_auth_key_watchdog(), &TempAuthKeyWatchdog::register_auth_key_id_impl, id);
-    return make_unique<RegisteredAuthKeyImpl>(id);
-  }
-
- private:
-  static constexpr double SYNC_WAIT = 0.1;
-  static constexpr double SYNC_WAIT_MAX = 1.0;
-  static constexpr double RESYNC_DELAY = 5.0;
-  static constexpr int32 MAX_RESYNC_COUNT = 6;
-
-  ActorShared<> parent_;
-  std::map<uint64, uint32> id_count_;
-  double sync_at_ = 0;
-  int32 resync_count_ = 0;
-  bool need_sync_ = false;
-  bool run_sync_ = false;
-
-  void register_auth_key_id_impl(int64 id) {
-    LOG(INFO) << "Register key " << id;
-    if (!++id_count_[id]) {
-      id_count_.erase(id);
-    }
-    need_sync();
-  }
-
-  void unregister_auth_key_id_impl(int64 id) {
-    LOG(INFO) << "Unregister key " << id;
-    if (!--id_count_[id]) {
-      id_count_.erase(id);
-    }
-    need_sync();
-  }
-
-  void need_sync() {
-    need_sync_ = true;
-    resync_count_ = MAX_RESYNC_COUNT;
-    try_sync();
-    LOG(DEBUG) << "Need sync temp auth keys";
-  }
-
-  void try_sync() {
-    if (run_sync_) {
-      return;
-    }
-    if (!need_sync_) {
-      if (resync_count_ > 0 && id_count_.size() > 1) {
-        resync_count_--;
-        need_sync_ = true;
-        sync_at_ = Time::now() + RESYNC_DELAY;
-        set_timeout_at(sync_at_);
-      }
-      return;
-    }
-
-    auto now = Time::now();
-    if (sync_at_ == 0) {
-      sync_at_ = now + SYNC_WAIT_MAX;
-    }
-    LOG(DEBUG) << "Set sync timeout";
-    set_timeout_at(min(sync_at_, now + SYNC_WAIT));
-  }
-
-  void timeout_expired() final {
-    LOG(DEBUG) << "Sync timeout expired";
-    CHECK(!run_sync_);
-    if (!need_sync_) {
-      LOG(ERROR) << "Do not need sync..";
-      return;
-    }
-    need_sync_ = false;
-    run_sync_ = true;
-    sync_at_ = 0;
-    vector<int64> auth_key_ids;
-    for (auto &id_count : id_count_) {
-      auth_key_ids.push_back(id_count.first);
-    }
-    if (!G()->close_flag()) {
-      LOG(WARNING) << "Start auth_dropTempAuthKeys except keys " << auth_key_ids;
-      auto query = G()->net_query_creator().create_unauth(telegram_api::auth_dropTempAuthKeys(std::move(auth_key_ids)));
-      G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this));
-    }
-  }
-
-  void on_result(NetQueryPtr query) final {
-    run_sync_ = false;
-    if (query->is_error()) {
-      if (G()->close_flag()) {
-        return;
-      }
-      LOG(ERROR) << "Receive error for auth_dropTempAuthKeys: " << query->error();
-      need_sync_ = true;
-      resync_count_ = MAX_RESYNC_COUNT;
-    } else {
-      LOG(INFO) << "Receive OK for auth_dropTempAuthKeys";
-    }
-    try_sync();
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/telegram/td_c_client.cpp b/third-party/td/td/td/telegram/td_c_client.cpp
deleted file mode 100644
index bea04e9265..0000000000
--- a/third-party/td/td/td/telegram/td_c_client.cpp
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/td_c_client.h"
-
-#include "td/telegram/Client.h"
-#include "td/telegram/Log.h"
-#include "td/telegram/td_tdc_api_inner.h"
-
-#include <cstring>
-
-static td::ClientManager *GetClientManager() {
-  return td::ClientManager::get_manager_singleton();
-}
-
-int TdCClientCreateId() {
-  return GetClientManager()->create_client_id();
-}
-
-void TdCClientSend(int client_id, struct TdRequest request) {
-  GetClientManager()->send(client_id, request.request_id, TdConvertToInternal(request.function));
-  TdDestroyObjectFunction(request.function);
-}
-
-TdResponse TdCClientReceive(double timeout) {
-  auto response = GetClientManager()->receive(timeout);
-  TdResponse c_response;
-  c_response.client_id = response.client_id;
-  c_response.request_id = response.request_id;
-  c_response.object = response.object == nullptr ? nullptr : TdConvertFromInternal(*response.object);
-  return c_response;
-}
-
-TdObject *TdCClientExecute(TdFunction *function) {
-  auto result = td::ClientManager::execute(TdConvertToInternal(function));
-  TdDestroyObjectFunction(function);
-  return TdConvertFromInternal(*result);
-}
-
-TdVectorInt *TdCreateObjectVectorInt(int size, int *data) {
-  auto res = new TdVectorInt();
-  res->len = size;
-  res->data = new int[size];
-  std::memcpy(res->data, data, sizeof(int) * size);
-  return res;
-}
-
-TdVectorLong *TdCreateObjectVectorLong(int size, long long *data) {
-  auto res = new TdVectorLong();
-  res->len = size;
-  res->data = new long long[size];
-  std::memcpy(res->data, data, sizeof(long long) * size);
-  return res;
-}
-
-TdVectorObject *TdCreateObjectVectorObject(int size, TdObject **data) {
-  auto res = new TdVectorObject();
-  res->len = size;
-  res->data = new TdObject *[size];
-  std::memcpy(res->data, data, sizeof(TdObject *) * size);
-  return res;
-}
-
-TdBytes TdCreateObjectBytes(unsigned char *data, int len) {
-  TdBytes res;
-  res.len = len;
-  res.data = new unsigned char[len];
-  std::memcpy(res.data, data, len);
-  return res;
-}
diff --git a/third-party/td/td/td/telegram/td_c_client.h b/third-party/td/td/td/telegram/td_c_client.h
deleted file mode 100644
index 8bab835d0d..0000000000
--- a/third-party/td/td/td/telegram/td_c_client.h
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "td/telegram/td_tdc_api.h"
-
-struct TdVectorInt *TdCreateObjectVectorInt(int size, int *data);
-struct TdVectorLong *TdCreateObjectVectorLong(int size, long long *data);
-struct TdVectorObject *TdCreateObjectVectorObject(int size, struct TdObject **data);
-struct TdBytes TdCreateObjectBytes(unsigned char *data, int len);
-
-struct TdRequest {
-  long long request_id;
-  struct TdFunction *function;
-};
-
-struct TdResponse {
-  long long request_id;
-  int client_id;
-  struct TdObject *object;
-};
-
-int TdCClientCreateId();
-
-void TdCClientSend(int client_id, struct TdRequest request);
-
-struct TdResponse TdCClientReceive(double timeout);
-
-struct TdObject *TdCClientExecute(struct TdFunction *function);
-
-#ifdef __cplusplus
-}
-#endif
diff --git a/third-party/td/td/td/telegram/td_emscripten.cpp b/third-party/td/td/td/telegram/td_emscripten.cpp
deleted file mode 100644
index 52244ed31d..0000000000
--- a/third-party/td/td/td/telegram/td_emscripten.cpp
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/td_json_client.h"
-#include "td/telegram/td_log.h"
-
-#include "td/actor/ConcurrentScheduler.h"
-
-#include <emscripten.h>
-
-extern "C" {
-
-EMSCRIPTEN_KEEPALIVE double td_emscripten_create_client_id() {
-  return td_create_client_id();
-}
-
-EMSCRIPTEN_KEEPALIVE void td_emscripten_send(double client_id, const char *query) {
-  td_send(static_cast<int>(client_id), query);
-}
-
-EMSCRIPTEN_KEEPALIVE const char *td_emscripten_receive() {
-  return td_receive(0);
-}
-
-EMSCRIPTEN_KEEPALIVE const char *td_emscripten_execute(const char *query) {
-  return td_execute(query);
-}
-
-EMSCRIPTEN_KEEPALIVE double td_emscripten_get_timeout() {
-  return td::ConcurrentScheduler::emscripten_get_main_timeout();
-}
-}
-
-int main() {
-  emscripten_exit_with_live_runtime();
-}
diff --git a/third-party/td/td/td/telegram/td_json_client.cpp b/third-party/td/td/td/telegram/td_json_client.cpp
deleted file mode 100644
index 71f309a576..0000000000
--- a/third-party/td/td/td/telegram/td_json_client.cpp
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/td_json_client.h"
-
-#include "td/telegram/Client.h"
-#include "td/telegram/ClientJson.h"
-
-#include "td/utils/Slice.h"
-
-void *td_json_client_create() {
-  return new td::ClientJson();
-}
-
-void td_json_client_destroy(void *client) {
-  delete static_cast<td::ClientJson *>(client);
-}
-
-void td_json_client_send(void *client, const char *request) {
-  static_cast<td::ClientJson *>(client)->send(td::Slice(request == nullptr ? "" : request));
-}
-
-const char *td_json_client_receive(void *client, double timeout) {
-  return static_cast<td::ClientJson *>(client)->receive(timeout);
-}
-
-const char *td_json_client_execute(void *client, const char *request) {
-  return td::ClientJson::execute(td::Slice(request == nullptr ? "" : request));
-}
-
-int td_create_client_id() {
-  return td::json_create_client_id();
-}
-
-void td_send(int client_id, const char *request) {
-  td::json_send(client_id, td::Slice(request == nullptr ? "" : request));
-}
-
-const char *td_receive(double timeout) {
-  return td::json_receive(timeout);
-}
-
-const char *td_execute(const char *request) {
-  return td::json_execute(td::Slice(request == nullptr ? "" : request));
-}
-
-void td_set_log_message_callback(int max_verbosity_level, td_log_message_callback_ptr callback) {
-  td::ClientManager::set_log_message_callback(max_verbosity_level, callback);
-}
diff --git a/third-party/td/td/td/telegram/td_json_client.h b/third-party/td/td/td/telegram/td_json_client.h
deleted file mode 100644
index 7ae87fc01f..0000000000
--- a/third-party/td/td/td/telegram/td_json_client.h
+++ /dev/null
@@ -1,187 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-/**
- * \file
- * C interface for interaction with TDLib via JSON-serialized objects.
- * Can be used to easily integrate TDLib with any programming language which supports calling C functions
- * and is able to work with JSON.
- *
- * The JSON serialization of TDLib API objects is straightforward: all API objects are represented as JSON objects with
- * the same keys as the API object field names. The object type name is stored in the special field "@type" which is
- * optional in places where type is uniquely determined by the context.
- * Fields of Bool type are stored as Boolean, fields of int32, int53, and double types are stored as Number, fields of
- * int64 and string types are stored as String, fields of bytes type are base64 encoded and then stored as String,
- * fields of array type are stored as Array.
- *
- * The main TDLib interface is asynchronous. To match requests with a corresponding response, the field "@extra" can
- * be added to the request object. The corresponding response will have an "@extra" field with exactly the same value.
- * Each returned object will have an "@client_id" field, containing the identifier of the client for which
- * a response or an update was received.
- *
- * A TDLib client instance can be created through td_create_client_id.
- * Requests can be sent using td_send and the received client identifier.
- * New updates and responses to requests can be received through td_receive from any thread after the first request
- * has been sent to the client instance. This function must not be called simultaneously from two different threads.
- * Also, note that all updates and responses to requests must be applied in the order they were received for consistency.
- * Some TDLib requests can be executed synchronously from any thread using td_execute.
- * TDLib client instances are destroyed automatically after they are closed.
- * All TDLib client instances must be closed before application termination to ensure data consistency.
- *
- * General pattern of usage:
- * \code
- * int client_id = td_create_client_id();
- * // share the client_id with other threads, which will be able to send requests via td_send
- *
- * const double WAIT_TIMEOUT = 10.0; // seconds
- * while (true) {
- *   const char *result = td_receive(WAIT_TIMEOUT);
- *   if (result) {
- *     // parse the result as a JSON object and process it as an incoming update or the answer to a previously sent request
- *   }
- * }
- * \endcode
- */
-
-#include "td/telegram/tdjson_export.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Returns an opaque identifier of a new TDLib instance.
- * The TDLib instance will not send updates until the first request is sent to it.
- * \return Opaque identifier of a new TDLib instance.
- */
-TDJSON_EXPORT int td_create_client_id();
-
-/**
- * Sends request to the TDLib client. May be called from any thread.
- * \param[in] client_id TDLib client identifier.
- * \param[in] request JSON-serialized null-terminated request to TDLib.
- */
-TDJSON_EXPORT void td_send(int client_id, const char *request);
-
-/**
- * Receives incoming updates and request responses. Must not be called simultaneously from two different threads.
- * The returned pointer can be used until the next call to td_receive or td_execute, after which it will be deallocated by TDLib.
- * \param[in] timeout The maximum number of seconds allowed for this function to wait for new data.
- * \return JSON-serialized null-terminated incoming update or request response. May be NULL if the timeout expires.
- */
-TDJSON_EXPORT const char *td_receive(double timeout);
-
-/**
- * Synchronously executes a TDLib request.
- * A request can be executed synchronously, only if it is documented with "Can be called synchronously".
- * The returned pointer can be used until the next call to td_receive or td_execute, after which it will be deallocated by TDLib.
- * \param[in] request JSON-serialized null-terminated request to TDLib.
- * \return JSON-serialized null-terminated request response.
- */
-TDJSON_EXPORT const char *td_execute(const char *request);
-
-/**
- * A type of callback function that will be called when a message is added to the internal TDLib log.
- *
- * \param verbosity_level Log verbosity level with which the message was added from -1 up to 1024.
- *                        If 0, then TDLib will crash as soon as the callback returns.
- *                        None of the TDLib methods can be called from the callback.
- * \param message Null-terminated UTF-8-encoded string with the message added to the log.
- */
-typedef void (*td_log_message_callback_ptr)(int verbosity_level, const char *message);
-
-/**
- * Sets the callback that will be called when a message is added to the internal TDLib log.
- * None of the TDLib methods can be called from the callback.
- * By default the callback is not set.
- *
- * \param[in] max_verbosity_level The maximum verbosity level of messages for which the callback will be called.
- * \param[in] callback Callback that will be called when a message is added to the internal TDLib log.
- *                     Pass nullptr to remove the callback.
- */
-TDJSON_EXPORT void td_set_log_message_callback(int max_verbosity_level, td_log_message_callback_ptr callback);
-
-/**
- * \file
- * Alternatively, you can use old TDLib JSON interface, which will be removed in TDLib 2.0.0.
- *
- * Objects and functions serialization to JSON is the same for both JSON interfaces.
- *
- * The main TDLib interface is asynchronous. To match requests with a corresponding response a field "@extra" can
- * be added to the request object. The corresponding response will have an "@extra" field with exactly the same value.
- *
- * A TDLib client instance can be created through td_json_client_create.
- * Requests then can be sent using td_json_client_send from any thread.
- * New updates and request responses can be received through td_json_client_receive from any thread. This function
- * must not be called simultaneously from two different threads. Also, note that all updates and request responses
- * must be applied in the order they were received to ensure consistency.
- * Given this information, it's advisable to call this function from a dedicated thread.
- * Some service TDLib requests can be executed synchronously from any thread by using td_json_client_execute.
- * The TDLib client instance can be destroyed via td_json_client_destroy.
- *
- * General pattern of usage:
- * \code
- * void *client = td_json_client_create();
- * // somehow share the client with other threads, which will be able to send requests via td_json_client_send
- *
- * const double WAIT_TIMEOUT = 10.0; // seconds
- * int is_closed = 0;  // should be set to 1, when updateAuthorizationState with authorizationStateClosed is received
- * while (!is_closed) {
- *   const char *result = td_json_client_receive(client, WAIT_TIMEOUT);
- *   if (result) {
- *     // parse the result as JSON object and process it as an incoming update or an answer to a previously sent request
- *   }
- * }
- * td_json_client_destroy(client);
- * \endcode
- */
-
-/**
- * Creates a new instance of TDLib.
- * \return Pointer to the created instance of TDLib.
- */
-TDJSON_EXPORT void *td_json_client_create();
-
-/**
- * Sends request to the TDLib client. May be called from any thread.
- * \param[in] client The client.
- * \param[in] request JSON-serialized null-terminated request to TDLib.
- */
-TDJSON_EXPORT void td_json_client_send(void *client, const char *request);
-
-/**
- * Receives incoming updates and request responses from the TDLib client. May be called from any thread, but
- * must not be called simultaneously from two different threads.
- * Returned pointer will be deallocated by TDLib during next call to td_json_client_receive or td_json_client_execute
- * in the same thread, so it can't be used after that.
- * \param[in] client The client.
- * \param[in] timeout The maximum number of seconds allowed for this function to wait for new data.
- * \return JSON-serialized null-terminated incoming update or request response. May be NULL if the timeout expires.
- */
-TDJSON_EXPORT const char *td_json_client_receive(void *client, double timeout);
-
-/**
- * Synchronously executes TDLib request. May be called from any thread.
- * Only a few requests can be executed synchronously.
- * Returned pointer will be deallocated by TDLib during next call to td_json_client_receive or td_json_client_execute
- * in the same thread, so it can't be used after that.
- * \param[in] client The client. Currently, ignored for all requests, so NULL can be passed.
- * \param[in] request JSON-serialized null-terminated request to TDLib.
- * \return JSON-serialized null-terminated request response.
- */
-TDJSON_EXPORT const char *td_json_client_execute(void *client, const char *request);
-
-/**
- * Destroys the TDLib client instance. After this is called the client instance must not be used anymore.
- * \param[in] client The client.
- */
-TDJSON_EXPORT void td_json_client_destroy(void *client);
-
-#ifdef __cplusplus
-}  // extern "C"
-#endif
diff --git a/third-party/td/td/td/telegram/td_log.cpp b/third-party/td/td/td/telegram/td_log.cpp
deleted file mode 100644
index a8960cfc9c..0000000000
--- a/third-party/td/td/td/telegram/td_log.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/td_log.h"
-
-#include "td/telegram/Log.h"
-
-#include <cstdint>
-
-int td_set_log_file_path(const char *file_path) {
-  return static_cast<int>(td::Log::set_file_path(file_path == nullptr ? "" : file_path));
-}
-
-void td_set_log_max_file_size(long long max_file_size) {
-  td::Log::set_max_file_size(static_cast<std::int64_t>(max_file_size));
-}
-
-void td_set_log_verbosity_level(int new_verbosity_level) {
-  td::Log::set_verbosity_level(new_verbosity_level);
-}
-
-void td_set_log_fatal_error_callback(td_log_fatal_error_callback_ptr callback) {
-  td::Log::set_fatal_error_callback(callback);
-}
diff --git a/third-party/td/td/td/telegram/td_log.h b/third-party/td/td/td/telegram/td_log.h
deleted file mode 100644
index cb173a167f..0000000000
--- a/third-party/td/td/td/telegram/td_log.h
+++ /dev/null
@@ -1,82 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-/**
- * \file
- * C interface for managing the internal logging of TDLib.
- * By default TDLib writes logs to stderr or an OS specific log and uses a verbosity level of 5.
- * These functions are deprecated since TDLib 1.4.0 in favor of the setLogVerbosityLevel, setLogStream and
- * other synchronous requests for managing the internal TDLib logging.
- */
-
-#include "td/telegram/tdjson_export.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Sets the path to the file where the internal TDLib log will be written.
- * By default TDLib writes logs to stderr or an OS specific log.
- * Use this method to write the log to a file instead.
- *
- * \deprecated Use synchronous setLogStream request instead.
- * \param[in]  file_path Null-terminated path to a file where the internal TDLib log will be written.
- *                       Use an empty path to switch back to the default logging behaviour.
- * \return True 1 on success, or 0 otherwise, i.e. if the file can't be opened for writing.
- */
-TDJSON_DEPRECATED_EXPORT int td_set_log_file_path(const char *file_path);
-
-/**
- * Sets the maximum size of the file to where the internal TDLib log is written before the file will be auto-rotated.
- * Unused if log is not written to a file. Defaults to 10 MB.
- *
- * \deprecated Use synchronous setLogStream request instead.
- * \param[in]  max_file_size The maximum size of the file to where the internal TDLib log is written before the file
- *                           will be auto-rotated. Should be positive.
- */
-TDJSON_DEPRECATED_EXPORT void td_set_log_max_file_size(long long max_file_size);
-
-/**
- * Sets the verbosity level of the internal logging of TDLib.
- * By default the TDLib uses a log verbosity level of 5.
- *
- * \deprecated Use synchronous setLogVerbosityLevel request instead.
- * \param[in]  new_verbosity_level New value of logging verbosity level.
- *                                 Value 0 corresponds to fatal errors,
- *                                 value 1 corresponds to errors,
- *                                 value 2 corresponds to warnings and debug warnings,
- *                                 value 3 corresponds to informational,
- *                                 value 4 corresponds to debug,
- *                                 value 5 corresponds to verbose debug,
- *                                 value greater than 5 and up to 1024 can be used to enable even more logging.
- */
-TDJSON_DEPRECATED_EXPORT void td_set_log_verbosity_level(int new_verbosity_level);
-
-/**
- * A type of callback function that will be called when a fatal error happens.
- *
- * \param error_message Null-terminated string with a description of a happened fatal error.
- */
-typedef void (*td_log_fatal_error_callback_ptr)(const char *error_message);
-
-/**
- * Sets the callback that will be called when a fatal error happens.
- * None of the TDLib methods can be called from the callback.
- * The TDLib will crash as soon as callback returns.
- * By default the callback is not set.
- *
- * \deprecated Use td_set_log_message_callback instead.
- * \param[in]  callback Callback that will be called when a fatal error happens.
- *                      Pass NULL to remove the callback.
- */
-TDJSON_DEPRECATED_EXPORT void td_set_log_fatal_error_callback(td_log_fatal_error_callback_ptr callback);
-
-#ifdef __cplusplus
-}  // extern "C"
-#endif
diff --git a/third-party/td/td/td/tl/TlObject.h b/third-party/td/td/td/tl/TlObject.h
deleted file mode 100644
index d0d13aa4f5..0000000000
--- a/third-party/td/td/td/tl/TlObject.h
+++ /dev/null
@@ -1,263 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-/**
- * \file
- * Contains the declarations of a base class for all TL-objects and some helper methods
- */
-
-#include <cstddef>
-#include <cstdint>
-#include <string>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-class TlStorerCalcLength;
-
-class TlStorerUnsafe;
-
-class TlStorerToString;
-
-/**
- * This class is a base class for all TDLib TL-objects.
- */
-class TlObject {
- public:
-  /**
-   * Returns an identifier, uniquely determining the TL-type of the object.
-   */
-  virtual std::int32_t get_id() const = 0;
-
-  /**
-   * Appends the object to the storer serializing object, a buffer of fixed length.
-   * \param[in] s Storer to which the object will be appended.
-   */
-  virtual void store(TlStorerUnsafe &s) const {
-  }
-
-  /**
-   * Appends the object to the storer, calculating the TL-length of the serialized object.
-   * \param[in] s Storer to which the object will be appended.
-   */
-  virtual void store(TlStorerCalcLength &s) const {
-  }
-
-  /**
-   * Helper function for the to_string method. Appends a string representation of the object to the storer.
-   * \param[in] s Storer to which the object string representation will be appended.
-   * \param[in] field_name Object field_name if applicable.
-   */
-  virtual void store(TlStorerToString &s, const char *field_name) const = 0;
-
-  /**
-   * Default constructor.
-   */
-  TlObject() = default;
-
-  /**
-   * Deleted copy constructor.
-   */
-  TlObject(const TlObject &) = delete;
-
-  /**
-   * Deleted copy assignment operator.
-   */
-  TlObject &operator=(const TlObject &) = delete;
-
-  /**
-   * Default move constructor.
-   */
-  TlObject(TlObject &&) = default;
-
-  /**
-   * Default move assignment operator.
-   */
-  TlObject &operator=(TlObject &&) = default;
-
-  /**
-   * Virtual destructor.
-   */
-  virtual ~TlObject() = default;
-};
-
-/// @cond UNDOCUMENTED
-namespace tl {
-
-template <class T>
-class unique_ptr {
- public:
-  using pointer = T *;
-  using element_type = T;
-
-  unique_ptr() noexcept = default;
-  unique_ptr(const unique_ptr &) = delete;
-  unique_ptr &operator=(const unique_ptr &) = delete;
-  unique_ptr(unique_ptr &&other) noexcept : ptr_(other.release()) {
-  }
-  unique_ptr &operator=(unique_ptr &&other) noexcept {
-    reset(other.release());
-    return *this;
-  }
-  ~unique_ptr() {
-    reset();
-  }
-
-  unique_ptr(std::nullptr_t) noexcept {
-  }
-  explicit unique_ptr(T *ptr) noexcept : ptr_(ptr) {
-  }
-  template <class S, class = typename std::enable_if<std::is_base_of<T, S>::value>::type>
-  unique_ptr(unique_ptr<S> &&other) noexcept : ptr_(static_cast<S *>(other.release())) {
-  }
-  template <class S, class = typename std::enable_if<std::is_base_of<T, S>::value>::type>
-  unique_ptr &operator=(unique_ptr<S> &&other) noexcept {
-    reset(static_cast<T *>(other.release()));
-    return *this;
-  }
-  void reset(T *new_ptr = nullptr) noexcept {
-    static_assert(sizeof(T) > 0, "Can't destroy unique_ptr with incomplete type");
-    delete ptr_;
-    ptr_ = new_ptr;
-  }
-  T *release() noexcept {
-    auto res = ptr_;
-    ptr_ = nullptr;
-    return res;
-  }
-  T *get() noexcept {
-    return ptr_;
-  }
-  const T *get() const noexcept {
-    return ptr_;
-  }
-  T *operator->() noexcept {
-    return ptr_;
-  }
-  const T *operator->() const noexcept {
-    return ptr_;
-  }
-  T &operator*() noexcept {
-    return *ptr_;
-  }
-  const T &operator*() const noexcept {
-    return *ptr_;
-  }
-  explicit operator bool() const noexcept {
-    return ptr_ != nullptr;
-  }
-
- private:
-  T *ptr_{nullptr};
-};
-
-template <class T>
-bool operator==(std::nullptr_t, const unique_ptr<T> &p) {
-  return !p;
-}
-template <class T>
-bool operator==(const unique_ptr<T> &p, std::nullptr_t) {
-  return !p;
-}
-template <class T>
-bool operator!=(std::nullptr_t, const unique_ptr<T> &p) {
-  return static_cast<bool>(p);
-}
-template <class T>
-bool operator!=(const unique_ptr<T> &p, std::nullptr_t) {
-  return static_cast<bool>(p);
-}
-
-}  // namespace tl
-/// @endcond
-
-/**
- * A smart wrapper to store a pointer to a TL-object.
- */
-template <class Type>
-using tl_object_ptr = tl::unique_ptr<Type>;
-
-/**
- * A function to create a dynamically allocated TL-object. Can be treated as an analogue of std::make_unique.
- * Usage example:
- * \code
- * auto get_me_request = td::make_tl_object<td::td_api::getMe>();
- * auto message_text = td::make_tl_object<td::td_api::formattedText>("Hello, world!!!",
- *                     td::td_api::array<td::tl_object_ptr<td::td_api::textEntity>>());
- * auto send_message_request = td::make_tl_object<td::td_api::sendMessage>(chat_id, 0, nullptr, nullptr, nullptr,
- *      td::make_tl_object<td::td_api::inputMessageText>(std::move(message_text), nullptr, true));
- * \endcode
- *
- * \tparam Type Type of the TL-object to construct.
- * \param[in] args Arguments to pass to the object constructor.
- * \return Wrapped pointer to the created TL-object.
- */
-template <class Type, class... Args>
-tl_object_ptr<Type> make_tl_object(Args &&...args) {
-  return tl_object_ptr<Type>(new Type(std::forward<Args>(args)...));
-}
-
-/**
- * A function to downcast a wrapped pointer to a TL-object to a pointer to its subclass.
- * Casting an object to an incorrect type will lead to undefined behaviour.
- * Examples of usage:
- * \code
- * td::tl_object_ptr<td::td_api::callState> call_state = ...;
- * switch (call_state->get_id()) {
- *   case td::td_api::callStatePending::ID: {
- *     auto state = td::move_tl_object_as<td::td_api::callStatePending>(call_state);
- *     // use state
- *     break;
- *   }
- *   case td::td_api::callStateExchangingKeys::ID: {
- *     // no additional fields, so cast isn't needed
- *     break;
- *   }
- *   case td::td_api::callStateReady::ID: {
- *     auto state = td::move_tl_object_as<td::td_api::callStateReady>(call_state);
- *     // use state
- *     break;
- *   }
- *   case td::td_api::callStateHangingUp::ID: {
- *     // no additional fields, so cast isn't needed
- *     break;
- *   }
- *   case td::td_api::callStateDiscarded::ID: {
- *     auto state = td::move_tl_object_as<td::td_api::callStateDiscarded>(call_state);
- *     // use state
- *     break;
- *   }
- *   case td::td_api::callStateError::ID: {
- *     auto state = td::move_tl_object_as<td::td_api::callStateError>(call_state);
- *     // use state
- *     break;
- *   }
- *   default:
- *     assert(false);
- * }
- * \endcode
- *
- * \tparam ToT Type of TL-object to move to.
- * \tparam FromT Type of TL-object to move from, this is auto-deduced.
- * \param[in] from Wrapped pointer to a TL-object.
- */
-template <class ToT, class FromT>
-tl_object_ptr<ToT> move_tl_object_as(tl_object_ptr<FromT> &from) {
-  return tl_object_ptr<ToT>(static_cast<ToT *>(from.release()));
-}
-
-/**
- * \overload
- */
-template <class ToT, class FromT>
-tl_object_ptr<ToT> move_tl_object_as(tl_object_ptr<FromT> &&from) {
-  return tl_object_ptr<ToT>(static_cast<ToT *>(from.release()));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/tl/tl_dotnet_object.h b/third-party/td/td/td/tl/tl_dotnet_object.h
deleted file mode 100644
index 9bbd4bd12a..0000000000
--- a/third-party/td/td/td/tl/tl_dotnet_object.h
+++ /dev/null
@@ -1,205 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/CxCli.h"
-
-#pragma managed(push, off)
-#include "td/telegram/td_api.h"
-#include "td/telegram/td_api.hpp"
-#pragma managed(pop)
-
-namespace Telegram {
-namespace Td {
-namespace Api {
-
-using namespace CxCli;
-
-public ref class NativeObject sealed {
-public:
-  virtual ~NativeObject() {
-    if (data != nullptr) {
-      get_object_ptr();
-    }
-  }
-internal:
-  explicit NativeObject(td::td_api::BaseObject *fromData) {
-    data = static_cast<void *>(fromData);
-  }
-  td::td_api::object_ptr<td::td_api::BaseObject> get_object_ptr() {
-    auto res = static_cast<td::td_api::BaseObject *>(data);
-    data = nullptr;
-    return td::td_api::object_ptr<td::td_api::BaseObject>(res);
-  }
-  void *data;
-};
-
-public interface class BaseObject {
-public:
-  virtual NativeObject^ ToUnmanaged();
-};
-
-// from unmanaged
-inline bool FromUnmanaged(bool val) {
-  return val;
-}
-
-inline int32 FromUnmanaged(int32 val) {
-  return val;
-}
-
-inline int64 FromUnmanaged(int64 val) {
-  return val;
-}
-
-inline float64 FromUnmanaged(float64 val) {
-  return val;
-}
-
-inline String^ FromUnmanaged(const std::string &from) {
-  return string_from_unmanaged(from);
-}
-
-inline auto CLRCALL BytesFromUnmanaged(const std::string &from) {
-  Array<BYTE>^ res = REF_NEW Vector<BYTE>(static_cast<ArrayIndexType>(from.size()));
-  ArrayIndexType i = 0;
-  for (auto b : from) {
-    ArraySet(res, i++, b);
-  }
-  return res;
-}
-
-template <class FromT>
-auto CLRCALL FromUnmanaged(std::vector<FromT> &vec) {
-  using ToT = decltype(FromUnmanaged(vec[0]));
-  Array<ToT>^ res = REF_NEW Vector<ToT>(static_cast<ArrayIndexType>(vec.size()));
-  ArrayIndexType i = 0;
-  for (auto &from : vec) {
-    ArraySet(res, i++, FromUnmanaged(from));
-  }
-  return res;
-}
-
-inline auto CLRCALL BytesFromUnmanaged(const std::vector<std::string> &vec) {
-  using ToT = decltype(BytesFromUnmanaged(vec[0]));
-  Array<ToT>^ res = REF_NEW Vector<ToT>(static_cast<ArrayIndexType>(vec.size()));
-  ArrayIndexType i = 0;
-  for (auto &from : vec) {
-    ArraySet(res, i++, BytesFromUnmanaged(from));
-  }
-  return res;
-}
-
-template <class T>
-auto CLRCALL FromUnmanaged(td::td_api::object_ptr<T> &from) -> decltype(FromUnmanaged(*from.get())) {
-  if (!from) {
-    return nullptr;
-  }
-  return FromUnmanaged(*from.get());
-}
-
-#if TD_CLI
-template <class ResT>
-ref class CallFromUnmanagedRes {
-public:
-  [System::ThreadStaticAttribute]
-  static property ResT res;
-};
-
-template <class ResT>
-struct CallFromUnmanaged {
-  template <class T>
-  void operator()(T &val) const {
-    CallFromUnmanagedRes<ResT>::res = FromUnmanaged(val);
-  }
-};
-#endif
-
-template <class ResT, class T>
-ResT DoFromUnmanaged(T &from) {
-#if TD_WINRT
-  ResT res;
-  downcast_call(from, [&](auto &from_downcasted) {
-    res = FromUnmanaged(from_downcasted);
-  });
-  return res;
-#elif TD_CLI
-  CallFromUnmanaged<ResT> res;
-  downcast_call(from, res);
-  return CallFromUnmanagedRes<ResT>::res;
-#endif
-}
-
-inline BaseObject^ FromUnmanaged(td::td_api::Function &from) {
-  return DoFromUnmanaged<BaseObject^>(from);
-}
-
-inline BaseObject^ FromUnmanaged(td::td_api::Object &from) {
-  return DoFromUnmanaged<BaseObject^>(from);
-}
-
-// to unmanaged
-inline bool ToUnmanaged(bool val) {
-  return val;
-}
-inline int32 ToUnmanaged(int32 val) {
-  return val;
-}
-
-inline int64 ToUnmanaged(int64 val) {
-  return val;
-}
-
-inline float64 ToUnmanaged(float64 val) {
-  return val;
-}
-
-inline std::string ToUnmanaged(String ^from) {
-  return string_to_unmanaged(from);
-}
-
-inline std::string ToUnmanaged(Array<BYTE>^ from) {
-  if (!from) {
-    return std::string();
-  }
-
-  ArrayIndexType size = ArraySize(from);
-  std::string res(size, '\0');
-  for (ArrayIndexType i = 0; i < size; i++) {
-    res[i] = static_cast<char>(ArrayGet(from, i));
-  }
-  return res;
-}
-
-template <class FromT>
-auto ToUnmanaged(Array<FromT>^ from) {
-  std::vector<decltype(ToUnmanaged(ArrayGet(from, 0)))> res;
-  if (from && ArraySize(from)) {
-    ArrayIndexType size = ArraySize(from);
-    res.reserve(size);
-    for (ArrayIndexType i = 0; i < size; i++) {
-      res.push_back(ToUnmanaged(ArrayGet(from, i)));
-    }
-  }
-  return res;
-}
-
-inline NativeObject^ ToUnmanaged(BaseObject^ from) {
-  if (!from) {
-    return REF_NEW NativeObject(nullptr);
-  }
-
-  return from->ToUnmanaged();
-}
-
-inline String^ ToString(BaseObject^ from) {
-  return string_from_unmanaged(td::td_api::to_string(ToUnmanaged(from)->get_object_ptr()));
-}
-
-}  // namespace Api
-}  // namespace Td
-}  // namespace Telegram
diff --git a/third-party/td/td/td/tl/tl_jni_object.cpp b/third-party/td/td/td/tl/tl_jni_object.cpp
deleted file mode 100644
index 55a7034d55..0000000000
--- a/third-party/td/td/td/tl/tl_jni_object.cpp
+++ /dev/null
@@ -1,383 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_jni_object.h"
-
-#include "td/utils/common.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <memory>
-
-namespace td {
-namespace jni {
-
-thread_local bool parse_error;
-
-static jclass BooleanClass;
-static jclass IntegerClass;
-static jclass LongClass;
-static jclass DoubleClass;
-static jclass StringClass;
-static jclass ObjectClass;
-jclass ArrayKeyboardButtonClass;
-jclass ArrayInlineKeyboardButtonClass;
-jclass ArrayPageBlockTableCellClass;
-jmethodID GetConstructorID;
-jmethodID BooleanGetValueMethodID;
-jmethodID IntegerGetValueMethodID;
-jmethodID LongGetValueMethodID;
-jmethodID DoubleGetValueMethodID;
-
-static void fatal_error(JNIEnv *env, CSlice error) {
-  LOG(ERROR) << error;
-  env->FatalError(error.c_str());
-}
-
-void set_fatal_error(JNIEnv *env, const std::string &error) {
-  fatal_error(env, error);
-}
-
-jclass get_jclass(JNIEnv *env, const char *class_name) {
-  jclass clazz = env->FindClass(class_name);
-  if (!clazz) {
-    fatal_error(env, PSLICE() << "Can't find class [" << class_name << "]");
-  }
-  jclass clazz_global = (jclass)env->NewGlobalRef(clazz);
-
-  env->DeleteLocalRef(clazz);
-
-  if (!clazz_global) {
-    fatal_error(env, PSLICE() << "Can't create global reference to [" << class_name << "]");
-  }
-
-  return clazz_global;
-}
-
-jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name, const char *signature) {
-  jmethodID res = env->GetMethodID(clazz, name, signature);
-  if (!res) {
-    fatal_error(env, PSLICE() << "Can't find method [" << name << "] with signature [" << signature << "]");
-  }
-  return res;
-}
-
-jfieldID get_field_id(JNIEnv *env, jclass clazz, const char *name, const char *signature) {
-  jfieldID res = env->GetFieldID(clazz, name, signature);
-  if (!res) {
-    fatal_error(env, PSLICE() << "Can't find field [" << name << "] with signature [" << signature << "]");
-  }
-  return res;
-}
-
-jfieldID get_static_field_id(JNIEnv *env, jclass clazz, const char *name, const char *signature) {
-  jfieldID res = env->GetStaticFieldID(clazz, name, signature);
-  if (!res) {
-    fatal_error(env, PSLICE() << "Can't find static field [" << name << "] with signature [" << signature << "]");
-  }
-  return res;
-}
-
-void register_native_method(JNIEnv *env, jclass clazz, std::string name, std::string signature, void *function_ptr) {
-  JNINativeMethod native_method{&name[0], &signature[0], function_ptr};
-  if (env->RegisterNatives(clazz, &native_method, 1) != 0) {
-    fatal_error(env, PSLICE() << "RegisterNatives failed for " << name << " with signature " << signature);
-  }
-}
-
-std::unique_ptr<JNIEnv, JvmThreadDetacher> get_jni_env(JavaVM *java_vm, jint jni_version) {
-  JNIEnv *env = nullptr;
-  if (!ExitGuard::is_exited() && java_vm->GetEnv(reinterpret_cast<void **>(&env), jni_version) == JNI_EDETACHED) {
-#ifdef JDK1_2  // if not Android JNI
-    auto p_env = reinterpret_cast<void **>(&env);
-#else
-    auto p_env = &env;
-#endif
-    if (java_vm->AttachCurrentThread(p_env, nullptr) != JNI_OK) {
-      java_vm = nullptr;
-      env = nullptr;
-    }
-  } else {
-    java_vm = nullptr;
-  }
-
-  return std::unique_ptr<JNIEnv, JvmThreadDetacher>(env, JvmThreadDetacher(java_vm));
-}
-
-void init_vars(JNIEnv *env, const char *td_api_java_package) {
-  BooleanClass = get_jclass(env, "java/lang/Boolean");
-  IntegerClass = get_jclass(env, "java/lang/Integer");
-  LongClass = get_jclass(env, "java/lang/Long");
-  DoubleClass = get_jclass(env, "java/lang/Double");
-  StringClass = get_jclass(env, "java/lang/String");
-  ObjectClass = get_jclass(env, (PSLICE() << td_api_java_package << "/TdApi$Object").c_str());
-  ArrayKeyboardButtonClass =
-      get_jclass(env, (PSLICE() << "[L" << td_api_java_package << "/TdApi$KeyboardButton;").c_str());
-  ArrayInlineKeyboardButtonClass =
-      get_jclass(env, (PSLICE() << "[L" << td_api_java_package << "/TdApi$InlineKeyboardButton;").c_str());
-  ArrayPageBlockTableCellClass =
-      get_jclass(env, (PSLICE() << "[L" << td_api_java_package << "/TdApi$PageBlockTableCell;").c_str());
-  GetConstructorID = get_method_id(env, ObjectClass, "getConstructor", "()I");
-  BooleanGetValueMethodID = get_method_id(env, BooleanClass, "booleanValue", "()Z");
-  IntegerGetValueMethodID = get_method_id(env, IntegerClass, "intValue", "()I");
-  LongGetValueMethodID = get_method_id(env, LongClass, "longValue", "()J");
-  DoubleGetValueMethodID = get_method_id(env, DoubleClass, "doubleValue", "()D");
-}
-
-static size_t get_utf8_from_utf16_length(const jchar *p, jsize len) {
-  size_t result = 0;
-  for (jsize i = 0; i < len; i++) {
-    uint32 cur = p[i];
-    if ((cur & 0xF800) == 0xD800) {
-      if (i < len) {
-        uint32 next = p[++i];
-        if ((next & 0xFC00) == 0xDC00 && (cur & 0x400) == 0) {
-          result += 4;
-          continue;
-        }
-      }
-
-      // TODO wrong UTF-16, it is possible
-      return 0;
-    }
-    result += 1 + (cur >= 0x80) + (cur >= 0x800);
-  }
-  return result;
-}
-
-static void utf16_to_utf8(const jchar *p, jsize len, char *res) {
-  for (jsize i = 0; i < len; i++) {
-    uint32 cur = p[i];
-    // TODO conversion uint32 -> signed char is implementation defined
-    if (cur <= 0x7f) {
-      *res++ = static_cast<char>(cur);
-    } else if (cur <= 0x7ff) {
-      *res++ = static_cast<char>(0xc0 | (cur >> 6));
-      *res++ = static_cast<char>(0x80 | (cur & 0x3f));
-    } else if ((cur & 0xF800) != 0xD800) {
-      *res++ = static_cast<char>(0xe0 | (cur >> 12));
-      *res++ = static_cast<char>(0x80 | ((cur >> 6) & 0x3f));
-      *res++ = static_cast<char>(0x80 | (cur & 0x3f));
-    } else {
-      // correctness is already checked
-      uint32 next = p[++i];
-      uint32 val = ((cur - 0xD800) << 10) + next - 0xDC00 + 0x10000;
-
-      *res++ = static_cast<char>(0xf0 | (val >> 18));
-      *res++ = static_cast<char>(0x80 | ((val >> 12) & 0x3f));
-      *res++ = static_cast<char>(0x80 | ((val >> 6) & 0x3f));
-      *res++ = static_cast<char>(0x80 | (val & 0x3f));
-    }
-  }
-}
-
-static jsize get_utf16_from_utf8_length(const char *p, size_t len, jsize *surrogates) {
-  // UTF-8 correctness is supposed
-  jsize result = 0;
-  for (size_t i = 0; i < len; i++) {
-    result += ((p[i] & 0xc0) != 0x80);
-    *surrogates += ((p[i] & 0xf8) == 0xf0);
-  }
-  return result;
-}
-
-static void utf8_to_utf16(const char *p, size_t len, jchar *res) {
-  // UTF-8 correctness is supposed
-  for (size_t i = 0; i < len;) {
-    uint32 a = static_cast<unsigned char>(p[i++]);
-    if (a >= 0x80) {
-      uint32 b = static_cast<unsigned char>(p[i++]);
-      if (a >= 0xe0) {
-        uint32 c = static_cast<unsigned char>(p[i++]);
-        if (a >= 0xf0) {
-          uint32 d = static_cast<unsigned char>(p[i++]);
-          uint32 val = ((a & 0x07) << 18) + ((b & 0x3f) << 12) + ((c & 0x3f) << 6) + (d & 0x3f) - 0x10000;
-          *res++ = static_cast<jchar>(0xD800 + (val >> 10));
-          *res++ = static_cast<jchar>(0xDC00 + (val & 0x3ff));
-        } else {
-          *res++ = static_cast<jchar>(((a & 0x0f) << 12) + ((b & 0x3f) << 6) + (c & 0x3f));
-        }
-      } else {
-        *res++ = static_cast<jchar>(((a & 0x1f) << 6) + (b & 0x3f));
-      }
-    } else {
-      *res++ = static_cast<jchar>(a);
-    }
-  }
-}
-
-std::string fetch_string(JNIEnv *env, jobject o, jfieldID id) {
-  jstring s = (jstring)env->GetObjectField(o, id);
-  if (s == nullptr) {
-    // treat null as an empty string
-    return std::string();
-  }
-  std::string res = from_jstring(env, s);
-  env->DeleteLocalRef(s);
-  return res;
-}
-
-std::string fetch_static_string(JNIEnv *env, jclass clazz, jfieldID id) {
-  jstring s = (jstring)env->GetStaticObjectField(clazz, id);
-  if (s == nullptr) {
-    // treat null as an empty string
-    return std::string();
-  }
-  std::string res = from_jstring(env, s);
-  env->DeleteLocalRef(s);
-  return res;
-}
-
-std::string from_jstring(JNIEnv *env, jstring s) {
-  if (!s) {
-    return std::string();
-  }
-  jsize s_len = env->GetStringLength(s);
-  const jchar *p = env->GetStringChars(s, nullptr);
-  if (p == nullptr) {
-    parse_error = true;
-    return std::string();
-  }
-  size_t len = get_utf8_from_utf16_length(p, s_len);
-  std::string res(len, '\0');
-  if (len) {
-    utf16_to_utf8(p, s_len, &res[0]);
-  }
-  env->ReleaseStringChars(s, p);
-  return res;
-}
-
-jstring to_jstring(JNIEnv *env, const std::string &s) {
-  jsize surrogates = 0;
-  jsize unicode_len = get_utf16_from_utf8_length(s.c_str(), s.size(), &surrogates);
-  if (surrogates == 0) {
-    // TODO '\0'
-    return env->NewStringUTF(s.c_str());
-  }
-  jsize result_len = surrogates + unicode_len;
-  if (result_len <= 256) {
-    jchar result[256];
-    utf8_to_utf16(s.c_str(), s.size(), result);
-    return env->NewString(result, result_len);
-  }
-
-  auto result = std::make_unique<jchar[]>(result_len);
-  utf8_to_utf16(s.c_str(), s.size(), result.get());
-  return env->NewString(result.get(), result_len);
-}
-
-std::string from_bytes(JNIEnv *env, jbyteArray arr) {
-  std::string b;
-  if (arr != nullptr) {
-    jsize length = env->GetArrayLength(arr);
-    if (length != 0) {
-      b.resize(narrow_cast<size_t>(length));
-      env->GetByteArrayRegion(arr, 0, length, reinterpret_cast<jbyte *>(&b[0]));
-    }
-    env->DeleteLocalRef(arr);
-  }
-  return b;
-}
-
-jbyteArray to_bytes(JNIEnv *env, const std::string &b) {
-  static_assert(sizeof(char) == sizeof(jbyte), "Mismatched jbyte size");
-  auto length = narrow_cast<jsize>(b.size());
-  jbyteArray arr = env->NewByteArray(length);
-  if (arr != nullptr && length != 0) {
-    env->SetByteArrayRegion(arr, 0, length, reinterpret_cast<const jbyte *>(b.data()));
-  }
-  return arr;
-}
-
-jintArray store_vector(JNIEnv *env, const std::vector<std::int32_t> &v) {
-  static_assert(sizeof(std::int32_t) == sizeof(jint), "Mismatched jint size");
-  auto length = narrow_cast<jsize>(v.size());
-  jintArray arr = env->NewIntArray(length);
-  if (arr != nullptr && length != 0) {
-    env->SetIntArrayRegion(arr, 0, length, reinterpret_cast<const jint *>(&v[0]));
-  }
-  return arr;
-}
-
-jlongArray store_vector(JNIEnv *env, const std::vector<std::int64_t> &v) {
-  static_assert(sizeof(std::int64_t) == sizeof(jlong), "Mismatched jlong size");
-  auto length = narrow_cast<jsize>(v.size());
-  jlongArray arr = env->NewLongArray(length);
-  if (arr != nullptr && length != 0) {
-    env->SetLongArrayRegion(arr, 0, length, reinterpret_cast<const jlong *>(&v[0]));
-  }
-  return arr;
-}
-
-jdoubleArray store_vector(JNIEnv *env, const std::vector<double> &v) {
-  static_assert(sizeof(double) == sizeof(jdouble), "Mismatched jdouble size");
-  auto length = narrow_cast<jsize>(v.size());
-  jdoubleArray arr = env->NewDoubleArray(length);
-  if (arr != nullptr && length != 0) {
-    env->SetDoubleArrayRegion(arr, 0, length, reinterpret_cast<const jdouble *>(&v[0]));
-  }
-  return arr;
-}
-
-jobjectArray store_vector(JNIEnv *env, const std::vector<std::string> &v) {
-  auto length = narrow_cast<jsize>(v.size());
-  jobjectArray arr = env->NewObjectArray(length, StringClass, 0);
-  if (arr != nullptr) {
-    for (jsize i = 0; i < length; i++) {
-      jstring str = to_jstring(env, v[i]);
-      if (str) {
-        env->SetObjectArrayElement(arr, i, str);
-        env->DeleteLocalRef(str);
-      }
-    }
-  }
-  return arr;
-}
-
-std::vector<std::int32_t> fetch_vector(JNIEnv *env, jintArray arr) {
-  std::vector<std::int32_t> result;
-  if (arr != nullptr) {
-    jsize length = env->GetArrayLength(arr);
-    if (length != 0) {
-      result.resize(length);
-      env->GetIntArrayRegion(arr, 0, length, reinterpret_cast<jint *>(&result[0]));
-    }
-    env->DeleteLocalRef(arr);
-  }
-  return result;
-}
-
-std::vector<std::int64_t> fetch_vector(JNIEnv *env, jlongArray arr) {
-  std::vector<std::int64_t> result;
-  if (arr != nullptr) {
-    jsize length = env->GetArrayLength(arr);
-    if (length != 0) {
-      result.resize(length);
-      env->GetLongArrayRegion(arr, 0, length, reinterpret_cast<jlong *>(&result[0]));
-    }
-    env->DeleteLocalRef(arr);
-  }
-  return result;
-}
-
-std::vector<double> fetch_vector(JNIEnv *env, jdoubleArray arr) {
-  std::vector<double> result;
-  if (arr != nullptr) {
-    jsize length = env->GetArrayLength(arr);
-    if (length != 0) {
-      result.resize(length);
-      env->GetDoubleArrayRegion(arr, 0, length, reinterpret_cast<jdouble *>(&result[0]));
-    }
-    env->DeleteLocalRef(arr);
-  }
-  return result;
-}
-
-}  // namespace jni
-}  // namespace td
diff --git a/third-party/td/td/td/tl/tl_jni_object.h b/third-party/td/td/td/tl/tl_jni_object.h
deleted file mode 100644
index c9d3f300da..0000000000
--- a/third-party/td/td/td/tl/tl_jni_object.h
+++ /dev/null
@@ -1,268 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <jni.h>
-
-#include <cstdint>
-#include <memory>
-#include <string>
-#include <vector>
-
-namespace td {
-namespace td_api {
-class keyboardButton;
-class inlineKeyboardButton;
-class pageBlockTableCell;
-}  // namespace td_api
-
-namespace jni {
-
-extern thread_local bool parse_error;
-
-extern jclass ArrayKeyboardButtonClass;
-extern jclass ArrayInlineKeyboardButtonClass;
-extern jclass ArrayPageBlockTableCellClass;
-extern jmethodID GetConstructorID;
-extern jmethodID BooleanGetValueMethodID;
-extern jmethodID IntegerGetValueMethodID;
-extern jmethodID LongGetValueMethodID;
-extern jmethodID DoubleGetValueMethodID;
-
-void set_fatal_error(JNIEnv *env, const std::string &error);
-
-jclass get_jclass(JNIEnv *env, const char *class_name);
-
-jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name, const char *signature);
-
-jfieldID get_field_id(JNIEnv *env, jclass clazz, const char *name, const char *signature);
-
-jfieldID get_static_field_id(JNIEnv *env, jclass clazz, const char *name, const char *signature);
-
-void register_native_method(JNIEnv *env, jclass clazz, std::string name, std::string signature, void *function_ptr);
-
-class JvmThreadDetacher {
-  JavaVM *java_vm_;
-
-  void detach() {
-    if (java_vm_ != nullptr) {
-      java_vm_->DetachCurrentThread();
-      java_vm_ = nullptr;
-    }
-  }
-
- public:
-  explicit JvmThreadDetacher(JavaVM *java_vm) : java_vm_(java_vm) {
-  }
-
-  JvmThreadDetacher(const JvmThreadDetacher &) = delete;
-  JvmThreadDetacher &operator=(const JvmThreadDetacher &) = delete;
-  JvmThreadDetacher(JvmThreadDetacher &&other) : java_vm_(other.java_vm_) {
-    other.java_vm_ = nullptr;
-  }
-  JvmThreadDetacher &operator=(JvmThreadDetacher &&) = delete;
-  ~JvmThreadDetacher() {
-    detach();
-  }
-
-  void operator()(JNIEnv *env) {
-    detach();
-  }
-};
-
-std::unique_ptr<JNIEnv, JvmThreadDetacher> get_jni_env(JavaVM *java_vm, jint jni_version);
-
-std::string fetch_string(JNIEnv *env, jobject o, jfieldID id);
-
-std::string fetch_static_string(JNIEnv *env, jclass clazz, jfieldID id);
-
-inline jobject fetch_object(JNIEnv *env, const jobject &o, const jfieldID &id) {
-  // null return object is implicitly allowed
-  return env->GetObjectField(o, id);
-}
-
-inline bool have_parse_error() {
-  return parse_error;
-}
-
-inline void reset_parse_error() {
-  parse_error = false;
-}
-
-std::string from_jstring(JNIEnv *env, jstring s);
-
-jstring to_jstring(JNIEnv *env, const std::string &s);
-
-std::string from_bytes(JNIEnv *env, jbyteArray arr);
-
-jbyteArray to_bytes(JNIEnv *env, const std::string &b);
-
-void init_vars(JNIEnv *env, const char *td_api_java_package);
-
-jintArray store_vector(JNIEnv *env, const std::vector<std::int32_t> &v);
-
-jlongArray store_vector(JNIEnv *env, const std::vector<std::int64_t> &v);
-
-jdoubleArray store_vector(JNIEnv *env, const std::vector<double> &v);
-
-jobjectArray store_vector(JNIEnv *env, const std::vector<std::string> &v);
-
-template <class T>
-jobjectArray store_vector(JNIEnv *env, const std::vector<T> &v) {
-  auto length = static_cast<jint>(v.size());
-  T::element_type::init_jni_vars(env);
-  jobjectArray arr = env->NewObjectArray(length, T::element_type::Class, jobject());
-  if (arr != nullptr) {
-    for (jint i = 0; i < length; i++) {
-      if (v[i] != nullptr) {
-        jobject stored_object;
-        v[i]->store(env, stored_object);
-        if (stored_object) {
-          env->SetObjectArrayElement(arr, i, stored_object);
-          env->DeleteLocalRef(stored_object);
-        }
-      }
-    }
-  }
-  return arr;
-}
-
-template <class T>
-class get_array_class {
-  static jclass get();
-};
-
-template <>
-class get_array_class<td_api::keyboardButton> {
- public:
-  static jclass get() {
-    return ArrayKeyboardButtonClass;
-  }
-};
-
-template <>
-class get_array_class<td_api::inlineKeyboardButton> {
- public:
-  static jclass get() {
-    return ArrayInlineKeyboardButtonClass;
-  }
-};
-
-template <>
-class get_array_class<td_api::pageBlockTableCell> {
- public:
-  static jclass get() {
-    return ArrayPageBlockTableCellClass;
-  }
-};
-
-template <class T>
-jobjectArray store_vector(JNIEnv *env, const std::vector<std::vector<T>> &v) {
-  auto length = static_cast<jint>(v.size());
-  jobjectArray arr = env->NewObjectArray(length, get_array_class<typename T::element_type>::get(), 0);
-  if (arr != nullptr) {
-    for (jint i = 0; i < length; i++) {
-      auto stored_array = store_vector(env, v[i]);
-      if (stored_array) {
-        env->SetObjectArrayElement(arr, i, stored_array);
-        env->DeleteLocalRef(stored_array);
-      }
-    }
-  }
-  return arr;
-}
-
-template <class T>
-auto fetch_tl_object(JNIEnv *env, jobject obj) {
-  decltype(T::fetch(env, obj)) result;
-  if (obj != nullptr) {
-    result = T::fetch(env, obj);
-    env->DeleteLocalRef(obj);
-  }
-  return result;
-}
-
-std::vector<std::int32_t> fetch_vector(JNIEnv *env, jintArray arr);
-
-std::vector<std::int64_t> fetch_vector(JNIEnv *env, jlongArray arr);
-
-std::vector<double> fetch_vector(JNIEnv *env, jdoubleArray arr);
-
-template <class T>
-struct FetchVector {
-  static auto fetch(JNIEnv *env, jobjectArray arr) {
-    std::vector<decltype(fetch_tl_object<T>(env, jobject()))> result;
-    if (arr != nullptr) {
-      jsize length = env->GetArrayLength(arr);
-      result.reserve(length);
-      for (jsize i = 0; i < length; i++) {
-        result.push_back(fetch_tl_object<T>(env, env->GetObjectArrayElement(arr, i)));
-      }
-      env->DeleteLocalRef(arr);
-    }
-    return result;
-  }
-};
-
-template <>
-struct FetchVector<std::string> {
-  static std::vector<std::string> fetch(JNIEnv *env, jobjectArray arr) {
-    std::vector<std::string> result;
-    if (arr != nullptr) {
-      jsize length = env->GetArrayLength(arr);
-      result.reserve(length);
-      for (jsize i = 0; i < length; i++) {
-        jstring str = (jstring)env->GetObjectArrayElement(arr, i);
-        result.push_back(from_jstring(env, str));
-        if (str) {
-          env->DeleteLocalRef(str);
-        }
-      }
-      env->DeleteLocalRef(arr);
-    }
-    return result;
-  }
-};
-
-template <>
-struct FetchVector<jbyteArray> {
-  static std::vector<std::string> fetch(JNIEnv *env, jobjectArray arr) {
-    std::vector<std::string> result;
-    if (arr != nullptr) {
-      jsize length = env->GetArrayLength(arr);
-      result.reserve(length);
-      for (jsize i = 0; i < length; i++) {
-        jbyteArray bytes = (jbyteArray)env->GetObjectArrayElement(arr, i);
-        result.push_back(from_bytes(env, bytes));
-        if (bytes) {
-          env->DeleteLocalRef(bytes);
-        }
-      }
-      env->DeleteLocalRef(arr);
-    }
-    return result;
-  }
-};
-
-template <class T>
-struct FetchVector<std::vector<T>> {
-  static auto fetch(JNIEnv *env, jobjectArray arr) {
-    std::vector<decltype(FetchVector<T>::fetch(env, jobjectArray()))> result;
-    if (arr != nullptr) {
-      jsize length = env->GetArrayLength(arr);
-      result.reserve(length);
-      for (jsize i = 0; i < length; i++) {
-        result.push_back(FetchVector<T>::fetch(env, (jobjectArray)env->GetObjectArrayElement(arr, i)));
-      }
-      env->DeleteLocalRef(arr);
-    }
-    return result;
-  }
-};
-
-}  // namespace jni
-}  // namespace td
diff --git a/third-party/td/td/td/tl/tl_json.h b/third-party/td/td/td/tl/tl_json.h
deleted file mode 100644
index 2df9769e2b..0000000000
--- a/third-party/td/td/td/tl/tl_json.h
+++ /dev/null
@@ -1,218 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/TlObject.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/TlDowncastHelper.h"
-
-#include <type_traits>
-
-namespace td {
-
-struct JsonInt64 {
-  int64 value;
-};
-
-inline void to_json(JsonValueScope &jv, const JsonInt64 json_int64) {
-  jv << JsonString(PSLICE() << json_int64.value);
-}
-
-struct JsonVectorInt64 {
-  const vector<int64> &value;
-};
-
-inline void to_json(JsonValueScope &jv, const JsonVectorInt64 &vec) {
-  auto ja = jv.enter_array();
-  for (auto &value : vec.value) {
-    ja.enter_value() << ToJson(JsonInt64{value});
-  }
-}
-
-template <class T>
-void to_json(JsonValueScope &jv, const tl_object_ptr<T> &value) {
-  if (value) {
-    to_json(jv, *value);
-  } else {
-    jv << JsonNull();
-  }
-}
-
-template <class T>
-void to_json(JsonValueScope &jv, const vector<T> &v) {
-  auto ja = jv.enter_array();
-  for (auto &value : v) {
-    ja.enter_value() << ToJson(value);
-  }
-}
-
-inline Status from_json(int32 &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::Number && from.type() != JsonValue::Type::String) {
-    if (from.type() == JsonValue::Type::Null) {
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected Number, but receive " << from.type());
-  }
-  Slice number = from.type() == JsonValue::Type::String ? from.get_string() : from.get_number();
-  TRY_RESULT_ASSIGN(to, to_integer_safe<int32>(number));
-  return Status::OK();
-}
-
-inline Status from_json(bool &to, JsonValue from) {
-  auto from_type = from.type();
-  if (from_type != JsonValue::Type::Boolean) {
-    if (from_type == JsonValue::Type::Null) {
-      return Status::OK();
-    }
-    int32 x = 0;
-    auto status = from_json(x, std::move(from));
-    if (status.is_ok()) {
-      to = x != 0;
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected Boolean, but receive " << from_type);
-  }
-  to = from.get_boolean();
-  return Status::OK();
-}
-
-inline Status from_json(int64 &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::Number && from.type() != JsonValue::Type::String) {
-    if (from.type() == JsonValue::Type::Null) {
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected String or Number, but receive " << from.type());
-  }
-  Slice number = from.type() == JsonValue::Type::String ? from.get_string() : from.get_number();
-  TRY_RESULT_ASSIGN(to, to_integer_safe<int64>(number));
-  return Status::OK();
-}
-
-inline Status from_json(double &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::Number) {
-    if (from.type() == JsonValue::Type::Null) {
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected Number, but receive " << from.type());
-  }
-  to = to_double(from.get_number());
-  return Status::OK();
-}
-
-inline Status from_json(string &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::String) {
-    if (from.type() == JsonValue::Type::Null) {
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected String, but receive " << from.type());
-  }
-  to = from.get_string().str();
-  return Status::OK();
-}
-
-inline Status from_json_bytes(string &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::String) {
-    if (from.type() == JsonValue::Type::Null) {
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected String, but receive " << from.type());
-  }
-  TRY_RESULT_ASSIGN(to, base64_decode(from.get_string()));
-  return Status::OK();
-}
-
-template <class T>
-Status from_json(vector<T> &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::Array) {
-    if (from.type() == JsonValue::Type::Null) {
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected Array, but receive " << from.type());
-  }
-  to = vector<T>(from.get_array().size());
-  size_t i = 0;
-  for (auto &value : from.get_array()) {
-    TRY_STATUS(from_json(to[i], std::move(value)));
-    i++;
-  }
-  return Status::OK();
-}
-
-inline Status from_json_bytes(vector<string> &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::Array) {
-    if (from.type() == JsonValue::Type::Null) {
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected Array, but receive " << from.type());
-  }
-  to = vector<string>(from.get_array().size());
-  size_t i = 0;
-  for (auto &value : from.get_array()) {
-    TRY_STATUS(from_json_bytes(to[i], std::move(value)));
-    i++;
-  }
-  return Status::OK();
-}
-
-template <class T>
-std::enable_if_t<!std::is_constructible<T>::value, Status> from_json(tl_object_ptr<T> &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::Object) {
-    if (from.type() == JsonValue::Type::Null) {
-      to = nullptr;
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected Object, but receive " << from.type());
-  }
-
-  auto &object = from.get_object();
-  TRY_RESULT(constructor_value, object.extract_required_field("@type", JsonValue::Type::Null));
-  int32 constructor = 0;
-  if (constructor_value.type() == JsonValue::Type::Number) {
-    constructor = to_integer<int32>(constructor_value.get_number());
-  } else if (constructor_value.type() == JsonValue::Type::String) {
-    TRY_RESULT_ASSIGN(constructor, tl_constructor_from_string(to.get(), constructor_value.get_string().str()));
-  } else {
-    return Status::Error(PSLICE() << "Expected String or Integer, but receive " << constructor_value.type());
-  }
-
-  TlDowncastHelper<T> helper(constructor);
-  Status status;
-  bool ok = downcast_call(static_cast<T &>(helper), [&](auto &dummy) {
-    auto result = make_tl_object<std::decay_t<decltype(dummy)>>();
-    status = from_json(*result, object);
-    to = std::move(result);
-  });
-  TRY_STATUS(std::move(status));
-  if (!ok) {
-    return Status::Error(PSLICE() << "Unknown constructor " << format::as_hex(constructor));
-  }
-
-  return Status::OK();
-}
-
-template <class T>
-std::enable_if_t<std::is_constructible<T>::value, Status> from_json(tl_object_ptr<T> &to, JsonValue from) {
-  if (from.type() != JsonValue::Type::Object) {
-    if (from.type() == JsonValue::Type::Null) {
-      to = nullptr;
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << "Expected Object, but receive " << from.type());
-  }
-  to = make_tl_object<T>();
-  return from_json(*to, from.get_object());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/td/tl/tl_object_parse.h b/third-party/td/td/td/tl/tl_object_parse.h
deleted file mode 100644
index 7b3b4191fb..0000000000
--- a/third-party/td/td/td/tl/tl_object_parse.h
+++ /dev/null
@@ -1,147 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/TlObject.h"
-
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/UInt.h"
-
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-
-template <class Func, std::int32_t constructor_id>
-class TlFetchBoxed {
- public:
-  template <class ParserT>
-  static auto parse(ParserT &parser) -> decltype(Func::parse(parser)) {
-    auto parsed_constructor_id = parser.fetch_int();
-    if (parsed_constructor_id != constructor_id) {
-      parser.set_error(PSTRING() << "Wrong constructor " << parsed_constructor_id << " found instead of "
-                                 << constructor_id);
-      return decltype(Func::parse(parser))();
-    }
-    return Func::parse(parser);
-  }
-};
-
-class TlFetchBool {
- public:
-  template <class ParserT>
-  static bool parse(ParserT &parser) {
-    constexpr std::int32_t ID_BOOL_FALSE = 0xbc799737;
-    constexpr std::int32_t ID_BOOL_TRUE = 0x997275b5;
-
-    std::int32_t c = parser.fetch_int();
-    if (c == ID_BOOL_TRUE) {
-      return true;
-    }
-    if (c != ID_BOOL_FALSE) {
-      parser.set_error("Bool expected");
-    }
-    return false;
-  }
-};
-
-class TlFetchInt {
- public:
-  template <class ParserT>
-  static std::int32_t parse(ParserT &parser) {
-    return parser.fetch_int();
-  }
-};
-
-class TlFetchLong {
- public:
-  template <class ParserT>
-  static std::int64_t parse(ParserT &parser) {
-    return parser.fetch_long();
-  }
-};
-
-class TlFetchDouble {
- public:
-  template <class ParserT>
-  static double parse(ParserT &parser) {
-    return parser.fetch_double();
-  }
-};
-
-class TlFetchInt128 {
- public:
-  template <class ParserT>
-  static UInt128 parse(ParserT &parser) {
-    return parser.template fetch_binary<UInt128>();
-  }
-};
-
-class TlFetchInt256 {
- public:
-  template <class ParserT>
-  static UInt256 parse(ParserT &parser) {
-    return parser.template fetch_binary<UInt256>();
-  }
-};
-
-class TlFetchInt512 {
- public:
-  template <class ParserT>
-  static UInt512 parse(ParserT &parser) {
-    return parser.template fetch_binary<UInt512>();
-  }
-};
-
-template <class T>
-class TlFetchString {
- public:
-  template <class ParserT>
-  static T parse(ParserT &parser) {
-    return parser.template fetch_string<T>();
-  }
-};
-
-template <class T>
-class TlFetchBytes {
- public:
-  template <class ParserT>
-  static T parse(ParserT &parser) {
-    return parser.template fetch_string<T>();
-  }
-};
-
-template <class Func>
-class TlFetchVector {
- public:
-  template <class ParserT>
-  static auto parse(ParserT &parser) -> std::vector<decltype(Func::parse(parser))> {
-    const std::uint32_t multiplicity = parser.fetch_int();
-    std::vector<decltype(Func::parse(parser))> v;
-    if (parser.get_left_len() < multiplicity) {
-      parser.set_error("Wrong vector length");
-    } else {
-      v.reserve(multiplicity);
-      for (std::uint32_t i = 0; i < multiplicity; i++) {
-        v.push_back(Func::parse(parser));
-      }
-    }
-    return v;
-  }
-};
-
-template <class T>
-class TlFetchObject {
- public:
-  template <class ParserT>
-  static tl_object_ptr<T> parse(ParserT &parser) {
-    return T::fetch(parser);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/td/tl/tl_object_store.h b/third-party/td/td/td/tl/tl_object_store.h
deleted file mode 100644
index eb9c1406cc..0000000000
--- a/third-party/td/td/td/tl/tl_object_store.h
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/TlObject.h"
-
-#include "td/utils/misc.h"
-
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-
-template <class Func, std::int32_t constructor_id>
-class TlStoreBoxed {
- public:
-  template <class T, class StorerT>
-  static void store(const T &x, StorerT &storer) {
-    storer.store_binary(constructor_id);
-    Func::store(x, storer);
-  }
-};
-
-template <class Func>
-class TlStoreBoxedUnknown {
- public:
-  template <class T, class StorerT>
-  static void store(const T &x, StorerT &storer) {
-    storer.store_binary(x->get_id());
-    Func::store(x, storer);
-  }
-};
-
-class TlStoreBool {
- public:
-  template <class StorerT>
-  static void store(const bool &x, StorerT &storer) {
-    constexpr std::int32_t ID_BOOL_FALSE = 0xbc799737;
-    constexpr std::int32_t ID_BOOL_TRUE = 0x997275b5;
-
-    storer.store_binary(x ? ID_BOOL_TRUE : ID_BOOL_FALSE);
-  }
-};
-
-class TlStoreBinary {
- public:
-  template <class T, class StorerT>
-  static void store(const T &x, StorerT &storer) {
-    storer.store_binary(x);
-  }
-};
-
-class TlStoreString {
- public:
-  template <class T, class StorerT>
-  static void store(const T &x, StorerT &storer) {
-    storer.store_string(x);
-  }
-};
-
-template <class Func>
-class TlStoreVector {
- public:
-  template <class T, class StorerT>
-  static void store(const T &vec, StorerT &storer) {
-    storer.store_binary(narrow_cast<int32>(vec.size()));
-    for (auto &val : vec) {
-      Func::store(val, storer);
-    }
-  }
-};
-
-class TlStoreObject {
- public:
-  template <class T, class StorerT>
-  static void store(const tl_object_ptr<T> &obj, StorerT &storer) {
-    return obj->store(storer);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/CMakeLists.txt b/third-party/td/td/tdactor/CMakeLists.txt
deleted file mode 100644
index df80aac415..0000000000
--- a/third-party/td/td/tdactor/CMakeLists.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-option(TDACTOR_ENABLE_INSTALL "Enable installation of the library." ON)
-
-if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
-  set(CMAKE_INSTALL_LIBDIR "lib")
-endif()
-
-set(TDACTOR_SOURCE
-  td/actor/ConcurrentScheduler.cpp
-  td/actor/impl/Scheduler.cpp
-  td/actor/MultiPromise.cpp
-  td/actor/MultiTimeout.cpp
-
-  td/actor/actor.h
-  td/actor/ConcurrentScheduler.h
-  td/actor/impl/Actor-decl.h
-  td/actor/impl/Actor.h
-  td/actor/impl/ActorId-decl.h
-  td/actor/impl/ActorId.h
-  td/actor/impl/ActorInfo-decl.h
-  td/actor/impl/ActorInfo.h
-  td/actor/impl/Event.h
-  td/actor/impl/EventFull-decl.h
-  td/actor/impl/EventFull.h
-  td/actor/impl/Scheduler-decl.h
-  td/actor/impl/Scheduler.h
-  td/actor/MultiPromise.h
-  td/actor/MultiTimeout.h
-  td/actor/PromiseFuture.h
-  td/actor/SchedulerLocalStorage.h
-  td/actor/SignalSlot.h
-  td/actor/SleepActor.h
-  td/actor/Timeout.h
-)
-
-set(TDACTOR_TEST_SOURCE
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/actors_main.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/actors_simple.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/actors_workers.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/actors_bugs.cpp
-  PARENT_SCOPE
-)
-
-add_library(tdactor STATIC ${TDACTOR_SOURCE})
-target_include_directories(tdactor PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-target_link_libraries(tdactor PUBLIC tdutils)
-
-if (NOT CMAKE_CROSSCOMPILING)
-  add_executable(example example/example.cpp)
-  target_link_libraries(example PRIVATE tdactor)
-endif()
-
-if (TDACTOR_ENABLE_INSTALL)
-  install(TARGETS tdactor EXPORT TdStaticTargets
-    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  )
-endif()
diff --git a/third-party/td/td/tdactor/example/example.cpp b/third-party/td/td/tdactor/example/example.cpp
deleted file mode 100644
index 0c06e83825..0000000000
--- a/third-party/td/td/tdactor/example/example.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/Time.h"
-
-class Worker final : public td::Actor {
- public:
-  void ping(int x) {
-    LOG(ERROR) << "Receive ping " << x;
-  }
-};
-
-class MainActor final : public td::Actor {
- public:
-  void start_up() final {
-    LOG(ERROR) << "Start up";
-    set_timeout_in(10);
-    worker_ = td::create_actor_on_scheduler<Worker>("Worker", 1);
-    send_closure(worker_, &Worker::ping, 123);
-  }
-
-  void timeout_expired() final {
-    LOG(ERROR) << "Timeout expired";
-    td::Scheduler::instance()->finish();
-  }
-
- private:
-  td::ActorOwn<Worker> worker_;
-};
-
-int main() {
-  td::ConcurrentScheduler scheduler(4 /*thread_count*/, 0);
-  scheduler.start();
-  {
-    auto guard = scheduler.get_main_guard();
-    td::create_actor_on_scheduler<MainActor>("Main actor", 0).release();
-  }
-  while (!scheduler.is_finished()) {
-    scheduler.run_main(td::Timestamp::in(10));
-  }
-  scheduler.finish();
-}
diff --git a/third-party/td/td/tdactor/td/actor/ConcurrentScheduler.cpp b/third-party/td/td/tdactor/td/actor/ConcurrentScheduler.cpp
deleted file mode 100644
index 9ec21e42ec..0000000000
--- a/third-party/td/td/tdactor/td/actor/ConcurrentScheduler.cpp
+++ /dev/null
@@ -1,205 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/ExitGuard.h"
-#include "td/utils/MpscPollableQueue.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/ScopeGuard.h"
-
-#include <memory>
-
-namespace td {
-
-ConcurrentScheduler::ConcurrentScheduler(int32 additional_thread_count, uint64 thread_affinity_mask) {
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-  additional_thread_count = 0;
-#endif
-  additional_thread_count++;
-  std::vector<std::shared_ptr<MpscPollableQueue<EventFull>>> outbound(additional_thread_count);
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-  for (int32 i = 0; i < additional_thread_count; i++) {
-    auto queue = std::make_shared<MpscPollableQueue<EventFull>>();
-    queue->init();
-    outbound[i] = queue;
-  }
-  thread_affinity_mask_ = thread_affinity_mask;
-#endif
-
-  // +1 for extra scheduler for IOCP and send_closure from unrelated threads
-  // It will know about other schedulers
-  // Other schedulers will have no idea about its existence
-  extra_scheduler_ = 1;
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-  extra_scheduler_ = 0;
-#endif
-
-  schedulers_.resize(additional_thread_count + extra_scheduler_);
-  for (int32 i = 0; i < additional_thread_count + extra_scheduler_; i++) {
-    auto &sched = schedulers_[i];
-    sched = make_unique<Scheduler>();
-
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-    if (i >= additional_thread_count) {
-      auto queue = std::make_shared<MpscPollableQueue<EventFull>>();
-      queue->init();
-      outbound.push_back(std::move(queue));
-    }
-#endif
-
-    sched->init(i, outbound, static_cast<Scheduler::Callback *>(this));
-  }
-
-#if TD_PORT_WINDOWS
-  iocp_ = make_unique<detail::Iocp>();
-  iocp_->init();
-#endif
-
-  state_ = State::Start;
-}
-
-void ConcurrentScheduler::test_one_thread_run() {
-  do {
-    for (auto &sched : schedulers_) {
-      sched->run(Timestamp::now_cached());
-    }
-  } while (!is_finished_.load(std::memory_order_relaxed));
-}
-
-#if !TD_THREAD_UNSUPPORTED
-thread::id ConcurrentScheduler::get_scheduler_thread_id(int32 sched_id) {
-  auto thread_pos = static_cast<size_t>(sched_id - 1);
-  CHECK(thread_pos < threads_.size());
-  return threads_[thread_pos].get_id();
-}
-#endif
-
-void ConcurrentScheduler::start() {
-  CHECK(state_ == State::Start);
-  is_finished_.store(false, std::memory_order_relaxed);
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-  for (size_t i = 1; i + extra_scheduler_ < schedulers_.size(); i++) {
-    auto &sched = schedulers_[i];
-    threads_.push_back(td::thread([&, thread_affinity_mask = thread_affinity_mask_] {
-#if TD_PORT_WINDOWS
-      detail::Iocp::Guard iocp_guard(iocp_.get());
-#endif
-#if TD_HAVE_THREAD_AFFINITY
-      if (thread_affinity_mask != 0) {
-        thread::set_affinity_mask(this_thread::get_id(), thread_affinity_mask).ignore();
-      }
-#else
-      (void)thread_affinity_mask;
-#endif
-      while (!is_finished()) {
-        sched->run(Timestamp::in(10));
-      }
-    }));
-  }
-#if TD_PORT_WINDOWS
-  iocp_thread_ = td::thread([this] {
-    auto guard = this->get_send_guard();
-    this->iocp_->loop();
-  });
-#endif
-#endif
-
-  state_ = State::Run;
-}
-
-static TD_THREAD_LOCAL double emscripten_timeout;
-
-bool ConcurrentScheduler::run_main(Timestamp timeout) {
-  CHECK(state_ == State::Run);
-  // run main scheduler in same thread
-  auto &main_sched = schedulers_[0];
-  if (!is_finished()) {
-#if TD_PORT_WINDOWS
-    detail::Iocp::Guard iocp_guard(iocp_.get());
-#endif
-    main_sched->run(timeout);
-  }
-
-  // hack for emscripten
-  emscripten_timeout = get_main_timeout().at();
-
-  return !is_finished();
-}
-
-Timestamp ConcurrentScheduler::get_main_timeout() {
-  CHECK(state_ == State::Run);
-  return schedulers_[0]->get_timeout();
-}
-
-double ConcurrentScheduler::emscripten_get_main_timeout() {
-  return Timestamp::at(emscripten_timeout).in();
-}
-void ConcurrentScheduler::emscripten_clear_main_timeout() {
-  emscripten_timeout = 0;
-}
-
-void ConcurrentScheduler::finish() {
-  CHECK(state_ == State::Run);
-  if (!is_finished()) {
-    on_finish();
-  }
-#if TD_PORT_WINDOWS
-  SCOPE_EXIT {
-    iocp_->clear();
-  };
-  detail::Iocp::Guard iocp_guard(iocp_.get());
-#endif
-
-  if (ExitGuard::is_exited()) {
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-    // prevent closing of schedulers from already killed by OS threads
-    for (auto &thread : threads_) {
-      thread.detach();
-    }
-#endif
-
-#if TD_PORT_WINDOWS
-    iocp_->interrupt_loop();
-    iocp_thread_.detach();
-#endif
-    return;
-  }
-
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-  for (auto &thread : threads_) {
-    thread.join();
-  }
-  threads_.clear();
-#endif
-
-#if TD_PORT_WINDOWS
-  iocp_->interrupt_loop();
-  iocp_thread_.join();
-#endif
-
-  schedulers_.clear();
-  for (auto &f : at_finish_) {
-    f();
-  }
-  at_finish_.clear();
-
-  state_ = State::Start;
-}
-
-void ConcurrentScheduler::on_finish() {
-  is_finished_.store(true, std::memory_order_relaxed);
-  for (auto &it : schedulers_) {
-    it->wakeup();
-  }
-}
-
-void ConcurrentScheduler::register_at_finish(std::function<void()> f) {
-  std::lock_guard<std::mutex> lock(at_finish_mutex_);
-  at_finish_.push_back(std::move(f));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/ConcurrentScheduler.h b/third-party/td/td/tdactor/td/actor/ConcurrentScheduler.h
deleted file mode 100644
index 7649c04b52..0000000000
--- a/third-party/td/td/tdactor/td/actor/ConcurrentScheduler.h
+++ /dev/null
@@ -1,116 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Time.h"
-
-#if TD_PORT_WINDOWS
-#include "td/utils/port/detail/Iocp.h"
-#endif
-
-#include <atomic>
-#include <functional>
-#include <mutex>
-#include <utility>
-
-namespace td {
-
-class ConcurrentScheduler final : private Scheduler::Callback {
- public:
-  explicit ConcurrentScheduler(int32 additional_thread_count, uint64 thread_affinity_mask = 0);
-
-  void finish_async() {
-    schedulers_[0]->finish();
-  }
-
-  void wakeup() {
-    schedulers_[0]->wakeup();
-  }
-
-  SchedulerGuard get_main_guard() {
-    return schedulers_[0]->get_guard();
-  }
-
-  SchedulerGuard get_send_guard() {
-    return schedulers_.back()->get_const_guard();
-  }
-
-  void test_one_thread_run();
-
-  bool is_finished() const {
-    return is_finished_.load(std::memory_order_relaxed);
-  }
-
-#if TD_THREAD_UNSUPPORTED
-  int get_scheduler_thread_id(int32 sched_id) {
-    return 1;
-  }
-#else
-  thread::id get_scheduler_thread_id(int32 sched_id);
-#endif
-
-  void start();
-
-  bool run_main(double timeout) {
-    return run_main(Timestamp::in(timeout));
-  }
-  bool run_main(Timestamp timeout);
-
-  Timestamp get_main_timeout();
-  static double emscripten_get_main_timeout();
-  static void emscripten_clear_main_timeout();
-
-  void finish();
-
-  template <class ActorT, class... Args>
-  ActorOwn<ActorT> create_actor_unsafe(int32 sched_id, Slice name, Args &&...args) {
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-    sched_id = 0;
-#endif
-    CHECK(0 <= sched_id && sched_id < static_cast<int32>(schedulers_.size()));
-    auto guard = schedulers_[sched_id]->get_guard();
-    return schedulers_[sched_id]->create_actor<ActorT>(name, std::forward<Args>(args)...);
-  }
-
-  template <class ActorT>
-  ActorOwn<ActorT> register_actor_unsafe(int32 sched_id, Slice name, ActorT *actor) {
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-    sched_id = 0;
-#endif
-    CHECK(0 <= sched_id && sched_id < static_cast<int32>(schedulers_.size()));
-    auto guard = schedulers_[sched_id]->get_guard();
-    return schedulers_[sched_id]->register_actor<ActorT>(name, actor);
-  }
-
- private:
-  enum class State { Start, Run };
-  State state_ = State::Start;
-  std::mutex at_finish_mutex_;
-  vector<std::function<void()>> at_finish_;  // can be used during destruction by Scheduler destructors
-  vector<unique_ptr<Scheduler>> schedulers_;
-  std::atomic<bool> is_finished_{false};
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-  vector<td::thread> threads_;
-  uint64 thread_affinity_mask_ = 0;
-#endif
-#if TD_PORT_WINDOWS
-  unique_ptr<detail::Iocp> iocp_;
-  td::thread iocp_thread_;
-#endif
-  int32 extra_scheduler_ = 0;
-
-  void on_finish() final;
-
-  void register_at_finish(std::function<void()> f) final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/MultiPromise.cpp b/third-party/td/td/tdactor/td/actor/MultiPromise.cpp
deleted file mode 100644
index d946d57fa6..0000000000
--- a/third-party/td/td/tdactor/td/actor/MultiPromise.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/MultiPromise.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-void MultiPromiseActor::add_promise(Promise<Unit> &&promise) {
-  promises_.emplace_back(std::move(promise));
-  LOG(DEBUG) << "Add promise #" << promises_.size() << " to " << name_;
-}
-
-Promise<Unit> MultiPromiseActor::get_promise() {
-  if (empty()) {
-    register_actor(name_, this).release();
-  }
-  CHECK(!promises_.empty());
-
-  PromiseActor<Unit> promise;
-  FutureActor<Unit> future;
-  init_promise_future(&promise, &future);
-
-  future.set_event(EventCreator::raw(actor_id(), nullptr));
-  futures_.emplace_back(std::move(future));
-  LOG(DEBUG) << "Get promise #" << futures_.size() << " for " << name_;
-  return create_promise_from_promise_actor(std::move(promise));
-}
-
-void MultiPromiseActor::raw_event(const Event::Raw &event) {
-  received_results_++;
-  LOG(DEBUG) << "Receive result #" << received_results_ << " out of " << futures_.size() << " for " << name_;
-  if (received_results_ == futures_.size()) {
-    if (!ignore_errors_) {
-      for (auto &future : futures_) {
-        auto result = future.move_as_result();
-        if (result.is_error()) {
-          return set_result(result.move_as_error());
-        }
-      }
-    }
-    return set_result(Unit());
-  }
-}
-
-void MultiPromiseActor::set_ignore_errors(bool ignore_errors) {
-  ignore_errors_ = ignore_errors;
-}
-
-void MultiPromiseActor::set_result(Result<Unit> &&result) {
-  result_ = std::move(result);
-  stop();
-}
-
-void MultiPromiseActor::tear_down() {
-  LOG(DEBUG) << "Set result for " << promises_.size() << " promises in " << name_;
-
-  // MultiPromiseActor should be cleared before it begins to send out result
-  auto promises_copy = std::move(promises_);
-  promises_.clear();
-  auto futures_copy = std::move(futures_);
-  futures_.clear();
-  received_results_ = 0;
-  auto result = std::move(result_);
-  result_ = Unit();
-
-  if (!promises_copy.empty()) {
-    for (size_t i = 0; i + 1 < promises_copy.size(); i++) {
-      promises_copy[i].set_result(result.clone());
-    }
-    promises_copy.back().set_result(std::move(result));
-  }
-}
-
-size_t MultiPromiseActor::promise_count() const {
-  return promises_.size();
-}
-
-void MultiPromiseActorSafe::add_promise(Promise<Unit> &&promise) {
-  multi_promise_->add_promise(std::move(promise));
-}
-
-Promise<Unit> MultiPromiseActorSafe::get_promise() {
-  return multi_promise_->get_promise();
-}
-
-void MultiPromiseActorSafe::set_ignore_errors(bool ignore_errors) {
-  multi_promise_->set_ignore_errors(ignore_errors);
-}
-
-size_t MultiPromiseActorSafe::promise_count() const {
-  return multi_promise_->promise_count();
-}
-
-MultiPromiseActorSafe::~MultiPromiseActorSafe() {
-  if (!multi_promise_->empty()) {
-    register_existing_actor(std::move(multi_promise_)).release();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/MultiPromise.h b/third-party/td/td/tdactor/td/actor/MultiPromise.h
deleted file mode 100644
index 159839c4c8..0000000000
--- a/third-party/td/td/tdactor/td/actor/MultiPromise.h
+++ /dev/null
@@ -1,120 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class MultiPromiseInterface {
- public:
-  virtual void add_promise(Promise<> &&promise) = 0;
-  virtual Promise<> get_promise() = 0;
-
-  virtual size_t promise_count() const = 0;
-  virtual void set_ignore_errors(bool ignore_errors) = 0;
-
-  MultiPromiseInterface() = default;
-  MultiPromiseInterface(const MultiPromiseInterface &) = delete;
-  MultiPromiseInterface &operator=(const MultiPromiseInterface &) = delete;
-  MultiPromiseInterface(MultiPromiseInterface &&) = default;
-  MultiPromiseInterface &operator=(MultiPromiseInterface &&) = default;
-  virtual ~MultiPromiseInterface() = default;
-};
-
-class MultiPromise final : public MultiPromiseInterface {
- public:
-  void add_promise(Promise<> &&promise) final {
-    impl_->add_promise(std::move(promise));
-  }
-  Promise<> get_promise() final {
-    return impl_->get_promise();
-  }
-
-  size_t promise_count() const final {
-    return impl_->promise_count();
-  }
-  void set_ignore_errors(bool ignore_errors) final {
-    impl_->set_ignore_errors(ignore_errors);
-  }
-
-  MultiPromise() = default;
-  explicit MultiPromise(unique_ptr<MultiPromiseInterface> impl) : impl_(std::move(impl)) {
-  }
-
- private:
-  unique_ptr<MultiPromiseInterface> impl_;
-};
-
-class MultiPromiseActor final
-    : public Actor
-    , public MultiPromiseInterface {
- public:
-  explicit MultiPromiseActor(string name) : name_(std::move(name)) {
-  }
-
-  void add_promise(Promise<Unit> &&promise) final;
-
-  Promise<Unit> get_promise() final;
-
-  void set_ignore_errors(bool ignore_errors) final;
-
-  size_t promise_count() const final;
-
- private:
-  void set_result(Result<Unit> &&result);
-
-  string name_;
-  vector<Promise<Unit>> promises_;     // promises waiting for result
-  vector<FutureActor<Unit>> futures_;  // futures waiting for result of the queries
-  size_t received_results_ = 0;
-  bool ignore_errors_ = false;
-  Result<Unit> result_;
-
-  void raw_event(const Event::Raw &event) final;
-
-  void tear_down() final;
-
-  void on_start_migrate(int32) final {
-    UNREACHABLE();
-  }
-  void on_finish_migrate() final {
-    UNREACHABLE();
-  }
-};
-
-template <>
-class ActorTraits<MultiPromiseActor> {
- public:
-  static constexpr bool need_context = false;
-  static constexpr bool need_start_up = true;
-};
-
-class MultiPromiseActorSafe final : public MultiPromiseInterface {
- public:
-  void add_promise(Promise<Unit> &&promise) final;
-  Promise<Unit> get_promise() final;
-  void set_ignore_errors(bool ignore_errors) final;
-  size_t promise_count() const final;
-  explicit MultiPromiseActorSafe(string name) : multi_promise_(td::make_unique<MultiPromiseActor>(std::move(name))) {
-  }
-  MultiPromiseActorSafe(const MultiPromiseActorSafe &) = delete;
-  MultiPromiseActorSafe &operator=(const MultiPromiseActorSafe &) = delete;
-  MultiPromiseActorSafe(MultiPromiseActorSafe &&) = delete;
-  MultiPromiseActorSafe &operator=(MultiPromiseActorSafe &&) = delete;
-  ~MultiPromiseActorSafe() final;
-
- private:
-  unique_ptr<MultiPromiseActor> multi_promise_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/MultiTimeout.cpp b/third-party/td/td/tdactor/td/actor/MultiTimeout.cpp
deleted file mode 100644
index d798a33d50..0000000000
--- a/third-party/td/td/tdactor/td/actor/MultiTimeout.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-bool MultiTimeout::has_timeout(int64 key) const {
-  return items_.count(Item(key)) > 0;
-}
-
-void MultiTimeout::set_timeout_at(int64 key, double timeout) {
-  LOG(DEBUG) << "Set " << get_name() << " for " << key << " in " << timeout - Time::now();
-  auto item = items_.emplace(key);
-  auto heap_node = static_cast<HeapNode *>(const_cast<Item *>(&*item.first));
-  if (heap_node->in_heap()) {
-    CHECK(!item.second);
-    bool need_update_timeout = heap_node->is_top();
-    timeout_queue_.fix(timeout, heap_node);
-    if (need_update_timeout || heap_node->is_top()) {
-      update_timeout("set_timeout");
-    }
-  } else {
-    CHECK(item.second);
-    timeout_queue_.insert(timeout, heap_node);
-    if (heap_node->is_top()) {
-      update_timeout("set_timeout 2");
-    }
-  }
-}
-
-void MultiTimeout::add_timeout_at(int64 key, double timeout) {
-  LOG(DEBUG) << "Add " << get_name() << " for " << key << " in " << timeout - Time::now();
-  auto item = items_.emplace(key);
-  auto heap_node = static_cast<HeapNode *>(const_cast<Item *>(&*item.first));
-  if (heap_node->in_heap()) {
-    CHECK(!item.second);
-  } else {
-    CHECK(item.second);
-    timeout_queue_.insert(timeout, heap_node);
-    if (heap_node->is_top()) {
-      update_timeout("add_timeout");
-    }
-  }
-}
-
-void MultiTimeout::cancel_timeout(int64 key, const char *source) {
-  LOG(DEBUG) << "Cancel " << get_name() << " for " << key;
-  auto item = items_.find(Item(key));
-  if (item != items_.end()) {
-    auto heap_node = static_cast<HeapNode *>(const_cast<Item *>(&*item));
-    CHECK(heap_node->in_heap());
-    bool need_update_timeout = heap_node->is_top();
-    timeout_queue_.erase(heap_node);
-    items_.erase(item);
-
-    if (need_update_timeout) {
-      update_timeout(source);
-    }
-  }
-}
-
-void MultiTimeout::update_timeout(const char *source) {
-  if (items_.empty()) {
-    LOG(DEBUG) << "Cancel timeout of " << get_name();
-    LOG_CHECK(timeout_queue_.empty()) << get_name() << ' ' << source;
-    if (!Actor::has_timeout()) {
-      bool has_pending_timeout = false;
-      for (auto &event : get_info()->mailbox_) {
-        if (event.type == Event::Type::Timeout) {
-          has_pending_timeout = true;
-        }
-      }
-      LOG_CHECK(has_pending_timeout) << get_name() << ' ' << get_info()->mailbox_.size() << ' ' << source;
-    } else {
-      Actor::cancel_timeout();
-    }
-  } else {
-    LOG(DEBUG) << "Set timeout of " << get_name() << " in " << timeout_queue_.top_key() - Time::now_cached();
-    Actor::set_timeout_at(timeout_queue_.top_key());
-  }
-}
-
-vector<int64> MultiTimeout::get_expired_keys(double now) {
-  vector<int64> expired_keys;
-  while (!timeout_queue_.empty() && timeout_queue_.top_key() < now) {
-    int64 key = static_cast<Item *>(timeout_queue_.pop())->key;
-    items_.erase(Item(key));
-    expired_keys.push_back(key);
-  }
-  return expired_keys;
-}
-
-void MultiTimeout::timeout_expired() {
-  vector<int64> expired_keys = get_expired_keys(Time::now_cached());
-  if (!items_.empty()) {
-    update_timeout("timeout_expired");
-  }
-  for (auto key : expired_keys) {
-    callback_(data_, key);
-  }
-}
-
-void MultiTimeout::run_all() {
-  vector<int64> expired_keys = get_expired_keys(Time::now_cached() + 1e10);
-  if (!expired_keys.empty()) {
-    update_timeout("run_all");
-  }
-  for (auto key : expired_keys) {
-    callback_(data_, key);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/MultiTimeout.h b/third-party/td/td/tdactor/td/actor/MultiTimeout.h
deleted file mode 100644
index 49f96da6ae..0000000000
--- a/third-party/td/td/tdactor/td/actor/MultiTimeout.h
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Heap.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Time.h"
-
-#include <set>
-
-namespace td {
-
-// TODO optimize
-class MultiTimeout final : public Actor {
-  struct Item final : public HeapNode {
-    int64 key;
-
-    explicit Item(int64 key) : key(key) {
-    }
-
-    bool operator<(const Item &other) const {
-      return key < other.key;
-    }
-  };
-
- public:
-  using Data = void *;
-  using Callback = void (*)(Data, int64);
-  explicit MultiTimeout(Slice name) {
-    register_actor(name, this).release();
-  }
-
-  void set_callback(Callback callback) {
-    callback_ = callback;
-  }
-  void set_callback_data(Data data) {
-    data_ = data;
-  }
-
-  bool has_timeout(int64 key) const;
-
-  void set_timeout_in(int64 key, double timeout) {
-    set_timeout_at(key, Time::now() + timeout);
-  }
-
-  void add_timeout_in(int64 key, double timeout) {
-    add_timeout_at(key, Time::now() + timeout);
-  }
-
-  void set_timeout_at(int64 key, double timeout);
-
-  void add_timeout_at(int64 key, double timeout);  // memcache semantics, doesn't replace old timeout
-
-  void cancel_timeout(int64 key, const char *source = "cancel_timeout");
-
-  void run_all();
-
- private:
-  friend class Scheduler;
-
-  Callback callback_;
-  Data data_;
-
-  KHeap<double> timeout_queue_;
-  std::set<Item> items_;
-
-  void update_timeout(const char *source);
-
-  void timeout_expired() final;
-
-  vector<int64> get_expired_keys(double now);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/PromiseFuture.h b/third-party/td/td/tdactor/td/actor/PromiseFuture.h
deleted file mode 100644
index 84cf416366..0000000000
--- a/third-party/td/td/tdactor/td/actor/PromiseFuture.h
+++ /dev/null
@@ -1,324 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/Closure.h"
-#include "td/utils/common.h"
-#include "td/utils/invoke.h"
-#include "td/utils/Promise.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Status.h"
-
-#include <tuple>
-#include <utility>
-
-namespace td {
-namespace detail {
-class EventPromise final : public PromiseInterface<Unit> {
- public:
-  void set_value(Unit &&) final {
-    ok_.try_emit();
-    fail_.clear();
-  }
-  void set_error(Status &&) final {
-    do_set_error();
-  }
-
-  EventPromise(const EventPromise &) = delete;
-  EventPromise &operator=(const EventPromise &) = delete;
-  EventPromise(EventPromise &&) = delete;
-  EventPromise &operator=(EventPromise &&) = delete;
-  ~EventPromise() final {
-    do_set_error();
-  }
-
-  EventPromise() = default;
-  explicit EventPromise(EventFull ok) : ok_(std::move(ok)), use_ok_as_fail_(true) {
-  }
-  EventPromise(EventFull ok, EventFull fail) : ok_(std::move(ok)), fail_(std::move(fail)), use_ok_as_fail_(false) {
-  }
-
- private:
-  EventFull ok_;
-  EventFull fail_;
-  bool use_ok_as_fail_ = false;
-  void do_set_error() {
-    if (use_ok_as_fail_) {
-      ok_.try_emit();
-    } else {
-      ok_.clear();
-      fail_.try_emit();
-    }
-  }
-};
-
-class SendClosure {
- public:
-  template <class... ArgsT>
-  void operator()(ArgsT &&...args) const {
-    send_closure(std::forward<ArgsT>(args)...);
-  }
-};
-}  // namespace detail
-
-inline Promise<Unit> create_event_promise(EventFull &&ok) {
-  return Promise<Unit>(td::make_unique<detail::EventPromise>(std::move(ok)));
-}
-
-inline Promise<Unit> create_event_promise(EventFull ok, EventFull fail) {
-  return Promise<Unit>(td::make_unique<detail::EventPromise>(std::move(ok), std::move(fail)));
-}
-
-template <class T>
-class FutureActor;
-
-template <class T>
-class PromiseActor;
-
-template <class T>
-class ActorTraits<FutureActor<T>> {
- public:
-  static constexpr bool need_context = false;
-  static constexpr bool need_start_up = false;
-};
-
-template <class T>
-class PromiseActor final : public PromiseInterface<T> {
-  friend class FutureActor<T>;
-  enum State { Waiting, Hangup };
-
- public:
-  PromiseActor() = default;
-  PromiseActor(const PromiseActor &) = delete;
-  PromiseActor &operator=(const PromiseActor &) = delete;
-  PromiseActor(PromiseActor &&) = default;
-  PromiseActor &operator=(PromiseActor &&) = default;
-  ~PromiseActor() final {
-    close();
-  }
-
-  void set_value(T &&value) final;
-  void set_error(Status &&error) final;
-
-  void close() {
-    future_id_.reset();
-  }
-
-  // NB: if true is returned no further events will be sent
-  bool is_hangup() {
-    if (state_ == State::Hangup) {
-      return true;
-    }
-    if (!future_id_.is_alive()) {
-      state_ = State::Hangup;
-      future_id_.release();
-      event_.clear();
-      return true;
-    }
-    return false;
-  }
-
-  template <class S>
-  friend void init_promise_future(PromiseActor<S> *promise, FutureActor<S> *future);
-
-  bool empty_promise() {
-    return future_id_.empty();
-  }
-  bool empty() {
-    return future_id_.empty();
-  }
-
- private:
-  ActorOwn<FutureActor<T>> future_id_;
-  EventFull event_;
-  State state_ = State::Hangup;
-
-  void init() {
-    state_ = State::Waiting;
-    event_.clear();
-  }
-};
-
-template <class T>
-class FutureActor final : public Actor {
-  friend class PromiseActor<T>;
-
- public:
-  enum State { Waiting, Ready };
-
-  static constexpr int HANGUP_ERROR_CODE = 426487;
-
-  FutureActor() = default;
-
-  FutureActor(const FutureActor &) = delete;
-  FutureActor &operator=(const FutureActor &) = delete;
-
-  FutureActor(FutureActor &&) = default;
-  FutureActor &operator=(FutureActor &&) = default;
-
-  ~FutureActor() final = default;
-
-  bool is_ok() const {
-    return is_ready() && result_.is_ok();
-  }
-  bool is_error() const {
-    CHECK(is_ready());
-    return is_ready() && result_.is_error();
-  }
-  T move_as_ok() {
-    return move_as_result().move_as_ok();
-  }
-  Status move_as_error() TD_WARN_UNUSED_RESULT {
-    return move_as_result().move_as_error();
-  }
-  Result<T> move_as_result() TD_WARN_UNUSED_RESULT {
-    CHECK(is_ready());
-    SCOPE_EXIT {
-      do_stop();
-    };
-    return std::move(result_);
-  }
-  bool is_ready() const {
-    return !empty() && state_ == State::Ready;
-  }
-
-  void close() {
-    event_.clear();
-    result_.clear();
-    do_stop();
-  }
-
-  void set_event(EventFull &&event) {
-    CHECK(!empty());
-    event_ = std::move(event);
-    if (state_ != State::Waiting) {
-      event_.try_emit_later();
-    }
-  }
-
-  State get_state() const {
-    return state_;
-  }
-
-  template <class S>
-  friend void init_promise_future(PromiseActor<S> *promise, FutureActor<S> *future);
-
- private:
-  EventFull event_;
-  Result<T> result_ = Status::Error(500, "Empty FutureActor");
-  State state_ = State::Waiting;
-
-  void set_value(T &&value) {
-    set_result(std::move(value));
-  }
-
-  void set_error(Status &&error) {
-    set_result(std::move(error));
-  }
-
-  void set_result(Result<T> &&result) {
-    CHECK(state_ == State::Waiting);
-    result_ = std::move(result);
-    state_ = State::Ready;
-
-    event_.try_emit_later();
-  }
-
-  void hangup() final {
-    set_error(Status::Error<HANGUP_ERROR_CODE>());
-  }
-
-  void start_up() final {
-    // empty
-  }
-
-  void init() {
-    CHECK(empty());
-    state_ = State::Waiting;
-    event_.clear();
-  }
-};
-
-template <class T>
-void PromiseActor<T>::set_value(T &&value) {
-  if (state_ == State::Waiting && !future_id_.empty()) {
-    send_closure(std::move(future_id_), &FutureActor<T>::set_value, std::move(value));
-  }
-}
-template <class T>
-void PromiseActor<T>::set_error(Status &&error) {
-  if (state_ == State::Waiting && !future_id_.empty()) {
-    send_closure(std::move(future_id_), &FutureActor<T>::set_error, std::move(error));
-  }
-}
-
-template <class S>
-void init_promise_future(PromiseActor<S> *promise, FutureActor<S> *future) {
-  promise->init();
-  future->init();
-  promise->future_id_ = register_actor("FutureActor", future);
-
-  CHECK(future->get_info() != nullptr);
-}
-
-template <class T>
-class PromiseFuture {
- public:
-  PromiseFuture() {
-    init_promise_future(&promise_, &future_);
-  }
-  PromiseActor<T> &promise() {
-    return promise_;
-  }
-  FutureActor<T> &future() {
-    return future_;
-  }
-  PromiseActor<T> &&move_promise() {
-    return std::move(promise_);
-  }
-  FutureActor<T> &&move_future() {
-    return std::move(future_);
-  }
-
- private:
-  PromiseActor<T> promise_;
-  FutureActor<T> future_;
-};
-
-template <class T, class ActorAT, class ActorBT, class ResultT, class... DestArgsT, class... ArgsT>
-FutureActor<T> send_promise_immediately(ActorId<ActorAT> actor_id,
-                                        ResultT (ActorBT::*func)(PromiseActor<T> &&, DestArgsT...), ArgsT &&...args) {
-  PromiseFuture<T> pf;
-  Scheduler::instance()->send_closure_immediately(
-      std::move(actor_id), create_immediate_closure(func, pf.move_promise(), std::forward<ArgsT>(args)...));
-  return pf.move_future();
-}
-
-template <class T, class ActorAT, class ActorBT, class ResultT, class... DestArgsT, class... ArgsT>
-FutureActor<T> send_promise_later(ActorId<ActorAT> actor_id, ResultT (ActorBT::*func)(PromiseActor<T> &&, DestArgsT...),
-                                  ArgsT &&...args) {
-  PromiseFuture<T> pf;
-  Scheduler::instance()->send_closure_later(
-      std::move(actor_id), create_immediate_closure(func, pf.move_promise(), std::forward<ArgsT>(args)...));
-  return pf.move_future();
-}
-
-template <class... ArgsT>
-auto promise_send_closure(ArgsT &&...args) {
-  return [t = std::make_tuple(std::forward<ArgsT>(args)...)](auto &&res) mutable {
-    call_tuple(detail::SendClosure(), std::tuple_cat(std::move(t), std::make_tuple(std::forward<decltype(res)>(res))));
-  };
-}
-
-template <class T>
-Promise<T> create_promise_from_promise_actor(PromiseActor<T> &&from) {
-  return Promise<T>(td::make_unique<PromiseActor<T>>(std::move(from)));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/SchedulerLocalStorage.h b/third-party/td/td/tdactor/td/actor/SchedulerLocalStorage.h
deleted file mode 100644
index 71f74d4a3f..0000000000
--- a/third-party/td/td/tdactor/td/actor/SchedulerLocalStorage.h
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/optional.h"
-
-#include <functional>
-
-namespace td {
-
-template <class T>
-class SchedulerLocalStorage {
- public:
-  SchedulerLocalStorage() : data_(Scheduler::instance()->sched_count()) {
-  }
-  T &get() {
-    return data_[Scheduler::instance()->sched_id()];
-  }
-  template <class F>
-  void for_each(F &&f) {
-    for (auto &value : data_) {
-      f(value);
-    }
-  }
-  template <class F>
-  void for_each(F &&f) const {
-    for (const auto &value : data_) {
-      f(value);
-    }
-  }
-
- private:
-  std::vector<T> data_;
-};
-
-template <class T>
-class LazySchedulerLocalStorage {
- public:
-  LazySchedulerLocalStorage() = default;
-  explicit LazySchedulerLocalStorage(std::function<T()> create_func) : create_func_(std::move(create_func)) {
-  }
-  void set_create_func(std::function<T()> create_func) {
-    CHECK(!create_func_);
-    create_func_ = create_func;
-  }
-
-  void set(T &&t) {
-    auto &optional_value_ = sls_optional_value_.get();
-    CHECK(!optional_value_);
-    optional_value_ = std::move(t);
-  }
-
-  T &get() {
-    auto &optional_value_ = sls_optional_value_.get();
-    if (!optional_value_) {
-      CHECK(create_func_);
-      optional_value_ = create_func_();
-    }
-    return *optional_value_;
-  }
-  void clear_values() {
-    sls_optional_value_.for_each([&](auto &optional_value) {
-      if (optional_value) {
-        optional_value = optional<T>();
-      }
-    });
-  }
-
- private:
-  std::function<T()> create_func_;
-  SchedulerLocalStorage<optional<T>> sls_optional_value_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/SignalSlot.h b/third-party/td/td/tdactor/td/actor/SignalSlot.h
deleted file mode 100644
index d99421e2a0..0000000000
--- a/third-party/td/td/tdactor/td/actor/SignalSlot.h
+++ /dev/null
@@ -1,112 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-namespace td {
-
-class Slot;
-
-class Signal {
- public:
-  void emit();
-
-  explicit Signal(ActorId<Slot> slot_id) : slot_id_(std::move(slot_id)) {
-  }
-
- private:
-  ActorId<Slot> slot_id_;
-};
-
-class Slot final : public Actor {
- public:
-  Slot() = default;
-  Slot(const Slot &) = delete;
-  Slot &operator=(const Slot &) = delete;
-  Slot(Slot &&) = default;
-  Slot &operator=(Slot &&) = default;
-  ~Slot() final {
-    close();
-  }
-  void set_event(EventFull &&event) {
-    was_signal_ = false;
-    event_ = std::move(event);
-  }
-
-  bool has_event() {
-    return !event_.empty();
-  }
-
-  bool was_signal() {
-    return was_signal_;
-  }
-
-  void clear_event() {
-    event_.clear();
-  }
-
-  void close() {
-    if (!empty()) {
-      do_stop();
-    }
-  }
-
-  void set_timeout_in(double timeout_in) {
-    register_if_empty();
-    Actor::set_timeout_in(timeout_in);
-  }
-  void set_timeout_at(double timeout_at) {
-    register_if_empty();
-    Actor::set_timeout_at(timeout_at);
-  }
-
-  friend class Signal;
-  Signal get_signal() {
-    register_if_empty();
-    return Signal(actor_id(this));
-  }
-  ActorShared<> get_signal_new() {
-    register_if_empty();
-    return actor_shared(this);
-  }
-
- private:
-  bool was_signal_ = false;
-  EventFull event_;
-
-  void timeout_expired() final {
-    signal();
-  }
-
-  void start_up() final {
-    empty();
-  }
-
-  void register_if_empty() {
-    if (empty()) {
-      register_actor("Slot", this).release();
-    }
-  }
-
-  // send event only once
-  void signal() {
-    if (!was_signal_) {
-      was_signal_ = true;
-      event_.try_emit_later();
-    }
-  }
-  void hangup_shared() final {
-    signal();
-  }
-};
-
-inline void Signal::emit() {
-  send_closure(slot_id_, &Slot::signal);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/SleepActor.h b/third-party/td/td/tdactor/td/actor/SleepActor.h
deleted file mode 100644
index 57ac2b818a..0000000000
--- a/third-party/td/td/tdactor/td/actor/SleepActor.h
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-
-namespace td {
-
-class SleepActor final : public Actor {
- public:
-  SleepActor(double timeout, Promise<> promise) : timeout_(timeout), promise_(std::move(promise)) {
-  }
-
- private:
-  double timeout_;
-  Promise<> promise_;
-
-  void start_up() final {
-    set_timeout_in(timeout_);
-  }
-  void timeout_expired() final {
-    promise_.set_value(Unit());
-    stop();
-  }
-};
-
-template <>
-class ActorTraits<SleepActor> {
- public:
-  static constexpr bool need_context = false;
-  static constexpr bool need_start_up = true;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/Timeout.h b/third-party/td/td/tdactor/td/actor/Timeout.h
deleted file mode 100644
index 3f8b6145df..0000000000
--- a/third-party/td/td/tdactor/td/actor/Timeout.h
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Timeout final : public Actor {
- public:
-  using Data = void *;
-  using Callback = void (*)(Data);
-  Timeout() {
-    register_actor("Timeout", this).release();
-  }
-
-  void set_callback(Callback callback) {
-    callback_ = callback;
-  }
-  void set_callback_data(Data &&data) {
-    data_ = data;
-  }
-
-  bool has_timeout() const {
-    return Actor::has_timeout();
-  }
-  double get_timeout() const {
-    return Actor::get_timeout();
-  }
-  void set_timeout_in(double timeout) {
-    Actor::set_timeout_in(timeout);
-  }
-  void set_timeout_at(double timeout) {
-    Actor::set_timeout_at(timeout);
-  }
-  void cancel_timeout() {
-    if (has_timeout()) {
-      Actor::cancel_timeout();
-      callback_ = Callback();
-      data_ = Data();
-    }
-  }
-
- private:
-  friend class Scheduler;
-
-  Callback callback_{};
-  Data data_{};
-
-  void timeout_expired() final {
-    CHECK(!has_timeout());
-    CHECK(callback_ != Callback());
-    Callback callback = callback_;
-    Data data = data_;
-    callback_ = Callback();
-    data_ = Data();
-
-    callback(data);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/actor.h b/third-party/td/td/tdactor/td/actor/actor.h
deleted file mode 100644
index 0b237ca3b4..0000000000
--- a/third-party/td/td/tdactor/td/actor/actor.h
+++ /dev/null
@@ -1,13 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/Actor.h"
-#include "td/actor/impl/ActorId.h"
-#include "td/actor/impl/ActorInfo.h"
-#include "td/actor/impl/EventFull.h"
-#include "td/actor/impl/Scheduler.h"
diff --git a/third-party/td/td/tdactor/td/actor/impl/Actor-decl.h b/third-party/td/td/tdactor/td/actor/impl/Actor-decl.h
deleted file mode 100644
index 68920cbb35..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/Actor-decl.h
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/ActorId-decl.h"
-#include "td/actor/impl/ActorInfo-decl.h"
-#include "td/actor/impl/Event.h"
-
-#include "td/utils/common.h"
-#include "td/utils/ObjectPool.h"
-#include "td/utils/Observer.h"
-#include "td/utils/Slice.h"
-
-#include <memory>
-
-namespace td {
-
-class Actor : public ObserverBase {
- public:
-  using Deleter = ActorInfo::Deleter;
-  Actor() = default;
-  Actor(const Actor &) = delete;
-  Actor &operator=(const Actor &) = delete;
-  Actor(Actor &&other) noexcept;
-  Actor &operator=(Actor &&other) noexcept;
-  ~Actor() override {
-    if (!empty()) {
-      do_stop();
-    }
-  }
-
-  virtual void start_up() {
-    yield();
-  }
-  virtual void tear_down() {
-  }
-  virtual void wakeup() {
-    loop();
-  }
-  virtual void hangup() {
-    stop();
-  }
-  virtual void hangup_shared() {
-    // ignore
-  }
-  virtual void timeout_expired() {
-    loop();
-  }
-  virtual void raw_event(const Event::Raw &event) {
-  }
-  virtual void loop() {
-  }
-
-  // TODO: not called in events. Can't use stop, or migrate inside of them
-  virtual void on_start_migrate(int32 sched_id) {
-  }
-  virtual void on_finish_migrate() {
-  }
-
-  void notify() override;
-
-  // proxy to scheduler
-  void yield();
-  void stop();
-  void do_stop();
-  bool has_timeout() const;
-  double get_timeout() const;
-  void set_timeout_in(double timeout_in);
-  void set_timeout_at(double timeout_at);
-  void cancel_timeout();
-  void migrate(int32 sched_id);
-  void do_migrate(int32 sched_id);
-
-  uint64 get_link_token();
-  std::weak_ptr<ActorContext> get_context_weak_ptr() const;
-  std::shared_ptr<ActorContext> set_context(std::shared_ptr<ActorContext> context);
-  string set_tag(string tag);
-
-  // for ActorInfo mostly
-  void set_info(ObjectPool<ActorInfo>::OwnerPtr &&info);
-  ActorInfo *get_info();
-  const ActorInfo *get_info() const;
-  ObjectPool<ActorInfo>::OwnerPtr clear();
-
-  bool empty() const;
-
-  template <class FuncT, class... ArgsT>
-  auto self_closure(FuncT &&func, ArgsT &&...args);
-
-  template <class SelfT, class FuncT, class... ArgsT>
-  auto self_closure(SelfT *self, FuncT &&func, ArgsT &&...args);
-
-  template <class LambdaT>
-  auto self_lambda(LambdaT &&func);
-
-  // proxy to info_
-  ActorId<> actor_id();
-  template <class SelfT>
-  ActorId<SelfT> actor_id(SelfT *self);
-
-  template <class SelfT>
-  ActorShared<SelfT> actor_shared(SelfT *self, uint64 id = static_cast<uint64>(-1));
-
-  Slice get_name() const;
-
- private:
-  ObjectPool<ActorInfo>::OwnerPtr info_;
-};
-
-template <class ActorT>
-class ActorTraits {
- public:
-  static constexpr bool need_context = true;
-  static constexpr bool need_start_up = true;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/Actor.h b/third-party/td/td/tdactor/td/actor/impl/Actor.h
deleted file mode 100644
index ba05accde1..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/Actor.h
+++ /dev/null
@@ -1,167 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/Actor-decl.h"
-#include "td/actor/impl/EventFull-decl.h"
-#include "td/actor/impl/Scheduler-decl.h"
-
-#include "td/utils/common.h"
-#include "td/utils/ObjectPool.h"
-#include "td/utils/Slice.h"
-
-#include <memory>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-inline Actor::Actor(Actor &&other) noexcept {
-  CHECK(info_.empty());
-  info_ = std::move(other.info_);
-  if (!empty()) {
-    info_->on_actor_moved(this);
-  }
-}
-inline Actor &Actor::operator=(Actor &&other) noexcept {
-  CHECK(info_.empty());
-  info_ = std::move(other.info_);
-  if (!empty()) {
-    info_->on_actor_moved(this);
-  }
-  return *this;
-}
-
-inline void Actor::notify() {
-  yield();
-}
-
-// proxy to scheduler
-inline void Actor::yield() {
-  Scheduler::instance()->yield_actor(this);
-}
-inline void Actor::stop() {
-  Scheduler::instance()->stop_actor(this);
-}
-inline void Actor::do_stop() {
-  Scheduler::instance()->do_stop_actor(this);
-  CHECK(empty());
-}
-inline bool Actor::has_timeout() const {
-  return get_info()->get_heap_node()->in_heap();
-}
-inline double Actor::get_timeout() const {
-  return Scheduler::instance()->get_actor_timeout(this);
-}
-inline void Actor::set_timeout_in(double timeout_in) {
-  Scheduler::instance()->set_actor_timeout_in(this, timeout_in);
-}
-inline void Actor::set_timeout_at(double timeout_at) {
-  Scheduler::instance()->set_actor_timeout_at(this, timeout_at);
-}
-inline void Actor::cancel_timeout() {
-  Scheduler::instance()->cancel_actor_timeout(this);
-}
-inline void Actor::migrate(int32 sched_id) {
-  Scheduler::instance()->migrate_actor(this, sched_id);
-}
-inline void Actor::do_migrate(int32 sched_id) {
-  Scheduler::instance()->do_migrate_actor(this, sched_id);
-}
-
-template <class ActorType>
-std::enable_if_t<std::is_base_of<Actor, ActorType>::value> start_migrate(ActorType &obj, int32 sched_id) {
-  if (!obj.empty()) {
-    Scheduler::instance()->start_migrate_actor(&obj, sched_id);
-  }
-}
-
-template <class ActorType>
-std::enable_if_t<std::is_base_of<Actor, ActorType>::value> finish_migrate(ActorType &obj) {
-  if (!obj.empty()) {
-    Scheduler::instance()->finish_migrate_actor(&obj);
-  }
-}
-
-inline uint64 Actor::get_link_token() {
-  return Scheduler::instance()->get_link_token(this);
-}
-
-inline std::weak_ptr<ActorContext> Actor::get_context_weak_ptr() const {
-  return info_->get_context_weak_ptr();
-}
-
-inline std::shared_ptr<ActorContext> Actor::set_context(std::shared_ptr<ActorContext> context) {
-  return info_->set_context(std::move(context));
-}
-
-inline string Actor::set_tag(string tag) {
-  auto *ctx = info_->get_context();
-  string old_tag;
-  if (ctx->tag_) {
-    old_tag = ctx->tag_;
-  }
-  ctx->set_tag(std::move(tag));
-  Scheduler::on_context_updated();
-  return old_tag;
-}
-
-inline void Actor::set_info(ObjectPool<ActorInfo>::OwnerPtr &&info) {
-  info_ = std::move(info);
-}
-
-inline ActorInfo *Actor::get_info() {
-  return &*info_;
-}
-inline const ActorInfo *Actor::get_info() const {
-  return &*info_;
-}
-
-inline ObjectPool<ActorInfo>::OwnerPtr Actor::clear() {
-  return std::move(info_);
-}
-
-inline bool Actor::empty() const {
-  return info_.empty();
-}
-
-inline ActorId<> Actor::actor_id() {
-  return actor_id(this);
-}
-template <class SelfT>
-ActorId<SelfT> Actor::actor_id(SelfT *self) {
-  CHECK(static_cast<Actor *>(self) == this);
-  return ActorId<SelfT>(info_.get_weak());
-}
-
-template <class SelfT>
-ActorShared<SelfT> Actor::actor_shared(SelfT *self, uint64 id) {
-  CHECK(static_cast<Actor *>(self) == this);
-  CHECK(id != 0);
-  return ActorShared<SelfT>(actor_id(self), id);
-}
-
-template <class FuncT, class... ArgsT>
-auto Actor::self_closure(FuncT &&func, ArgsT &&...args) {
-  return self_closure(this, std::forward<FuncT>(func), std::forward<ArgsT>(args)...);
-}
-
-template <class SelfT, class FuncT, class... ArgsT>
-auto Actor::self_closure(SelfT *self, FuncT &&func, ArgsT &&...args) {
-  return EventCreator::closure(actor_id(self), std::forward<FuncT>(func), std::forward<ArgsT>(args)...);
-}
-
-template <class LambdaT>
-auto Actor::self_lambda(LambdaT &&func) {
-  return EventCreator::from_lambda(actor_id(), std::forward<LambdaT>(func));
-}
-
-inline Slice Actor::get_name() const {
-  return info_->get_name();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/ActorId-decl.h b/third-party/td/td/tdactor/td/actor/impl/ActorId-decl.h
deleted file mode 100644
index f620005232..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/ActorId-decl.h
+++ /dev/null
@@ -1,159 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/ObjectPool.h"
-#include "td/utils/Slice.h"
-
-#include <type_traits>
-
-namespace td {
-
-class Actor;
-class ActorInfo;
-
-template <class ActorType = Actor>
-class ActorId {
- public:
-  using ActorT = ActorType;
-  explicit ActorId(ObjectPool<ActorInfo>::WeakPtr ptr) : ptr_(ptr) {
-  }
-  ActorId() = default;
-  ActorId(const ActorId &) = default;
-  ActorId &operator=(const ActorId &) = default;
-  ActorId(ActorId &&other) noexcept : ptr_(other.ptr_) {
-    other.clear();
-  }
-  ActorId &operator=(ActorId &&other) noexcept {
-    if (&other == this) {
-      return *this;
-    }
-    ptr_ = other.ptr_;
-    other.clear();
-    return *this;
-  }
-  ~ActorId() = default;
-
-  bool empty() const {
-    return ptr_.empty();
-  }
-  void clear() {
-    ptr_.clear();
-  }
-
-  bool is_alive() const {
-    return ptr_.is_alive_unsafe();
-  }
-
-  ActorInfo *get_actor_info() const;
-
-  ActorType *get_actor_unsafe() const;
-
-  Slice get_name() const;
-
-  template <class ToActorType, class = std::enable_if_t<std::is_base_of<ToActorType, ActorType>::value>>
-  explicit operator ActorId<ToActorType>() const {
-    return ActorId<ToActorType>(ptr_);
-  }
-
- private:
-  ObjectPool<ActorInfo>::WeakPtr ptr_;
-};
-
-// treat ActorId as pointer and ActorOwn as unique_ptr<ActorId>
-template <class ActorType = Actor>
-class ActorOwn {
- public:
-  using ActorT = ActorType;
-  ActorOwn() = default;
-  explicit ActorOwn(ActorId<ActorType> id);
-  template <class OtherActorType>
-  explicit ActorOwn(ActorId<OtherActorType> id);
-  template <class OtherActorType>
-  explicit ActorOwn(ActorOwn<OtherActorType> &&other);
-  template <class OtherActorType>
-  ActorOwn &operator=(ActorOwn<OtherActorType> &&other);
-  ActorOwn(ActorOwn &&other) noexcept;
-  ActorOwn &operator=(ActorOwn &&other) noexcept;
-  ActorOwn(const ActorOwn &) = delete;
-  ActorOwn &operator=(const ActorOwn &) = delete;
-  ~ActorOwn();
-
-  bool empty() const;
-  bool is_alive() const {
-    return id_.is_alive();
-  }
-  ActorId<ActorType> get() const;
-  ActorId<ActorType> release();
-  void reset(ActorId<ActorType> other = ActorId<ActorType>());
-  ActorType *get_actor_unsafe() const;
-
- private:
-  ActorId<ActorType> id_;
-};
-
-template <class ActorType = Actor>
-class ActorShared {
- public:
-  using ActorT = ActorType;
-  ActorShared() = default;
-  template <class OtherActorType>
-  ActorShared(ActorId<OtherActorType> id, uint64 token);
-  template <class OtherActorType>
-  ActorShared(ActorShared<OtherActorType> &&other);
-  template <class OtherActorType>
-  ActorShared(ActorOwn<OtherActorType> &&other);
-  template <class OtherActorType>
-  ActorShared &operator=(ActorShared<OtherActorType> &&other);
-  ActorShared(ActorShared &&other) noexcept;
-  ActorShared &operator=(ActorShared &&other) noexcept;
-  ActorShared(const ActorShared &) = delete;
-  ActorShared &operator=(const ActorShared &) = delete;
-  ~ActorShared();
-
-  uint64 token() const;
-  bool empty() const;
-  bool is_alive() const {
-    return id_.is_alive();
-  }
-  ActorId<ActorType> get() const;
-  ActorId<ActorType> release();
-  void reset(ActorId<ActorType> other = ActorId<ActorType>());
-
- private:
-  ActorId<ActorType> id_;
-  uint64 token_ = 0;
-};
-
-class ActorRef {
- public:
-  ActorRef() = default;
-  template <class T>
-  ActorRef(const ActorId<T> &actor_id);
-  template <class T>
-  ActorRef(ActorId<T> &&actor_id);
-  template <class T>
-  ActorRef(const ActorShared<T> &actor_id);
-  template <class T>
-  ActorRef(ActorShared<T> &&actor_id);
-  template <class T>
-  ActorRef(const ActorOwn<T> &actor_id);
-  template <class T>
-  ActorRef(ActorOwn<T> &&actor_id);
-  ActorId<> get() const {
-    return actor_id_;
-  }
-  uint64 token() const {
-    return token_;
-  }
-
- private:
-  ActorId<> actor_id_;
-  uint64 token_ = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/ActorId.h b/third-party/td/td/tdactor/td/actor/impl/ActorId.h
deleted file mode 100644
index 1bdbe6c244..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/ActorId.h
+++ /dev/null
@@ -1,195 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/ActorId-decl.h"
-#include "td/actor/impl/ActorInfo-decl.h"
-#include "td/actor/impl/Scheduler-decl.h"
-
-#include "td/utils/Slice.h"
-
-namespace td {
-
-// If actor is on our scheduler(thread) result will be valid
-// If actor is on another scheduler we will see it in migrate_dest_flags
-template <class ActorType>
-ActorInfo *ActorId<ActorType>::get_actor_info() const {
-  if (ptr_.is_alive()) {
-    return &*ptr_;
-  }
-  return nullptr;
-}
-
-template <class ActorType>
-ActorType *ActorId<ActorType>::get_actor_unsafe() const {
-  return static_cast<ActorType *>(ptr_->get_actor_unsafe());
-}
-
-template <class ActorType>
-Slice ActorId<ActorType>::get_name() const {
-  return ptr_->get_name();
-}
-
-template <class ActorType>
-ActorOwn<ActorType>::ActorOwn(ActorId<ActorType> id) : id_(std::move(id)) {
-}
-
-template <class ActorType>
-template <class OtherActorType>
-ActorOwn<ActorType>::ActorOwn(ActorId<OtherActorType> id) : id_(std::move(id)) {
-}
-
-template <class ActorType>
-template <class OtherActorType>
-ActorOwn<ActorType>::ActorOwn(ActorOwn<OtherActorType> &&other) : id_(other.release()) {
-}
-
-template <class ActorType>
-template <class OtherActorType>
-ActorOwn<ActorType> &ActorOwn<ActorType>::operator=(ActorOwn<OtherActorType> &&other) {
-  reset(static_cast<ActorId<ActorType>>(other.release()));
-  return *this;
-}
-
-template <class ActorType>
-ActorOwn<ActorType>::ActorOwn(ActorOwn &&other) noexcept : id_(other.release()) {
-}
-
-template <class ActorType>
-ActorOwn<ActorType> &ActorOwn<ActorType>::operator=(ActorOwn &&other) noexcept {
-  reset(other.release());
-  return *this;
-}
-
-template <class ActorType>
-ActorOwn<ActorType>::~ActorOwn() {
-  reset();
-}
-
-template <class ActorType>
-bool ActorOwn<ActorType>::empty() const {
-  return id_.empty();
-}
-
-template <class ActorType>
-ActorId<ActorType> ActorOwn<ActorType>::get() const {
-  return id_;
-}
-
-template <class ActorType>
-ActorId<ActorType> ActorOwn<ActorType>::release() {
-  return std::move(id_);
-}
-
-template <class ActorType>
-void ActorOwn<ActorType>::reset(ActorId<ActorType> other) {
-  static_assert(sizeof(ActorType) > 0, "Can't use ActorOwn with incomplete type");
-  if (!id_.empty()) {
-    send_event(id_, Event::hangup());
-  }
-  id_ = std::move(other);
-}
-
-template <class ActorType>
-ActorType *ActorOwn<ActorType>::get_actor_unsafe() const {
-  return id_.get_actor_unsafe();
-}
-
-template <class ActorType>
-template <class OtherActorType>
-ActorShared<ActorType>::ActorShared(ActorId<OtherActorType> id, uint64 token) : id_(std::move(id)), token_(token) {
-}
-
-template <class ActorType>
-template <class OtherActorType>
-ActorShared<ActorType>::ActorShared(ActorShared<OtherActorType> &&other) : id_(other.release()), token_(other.token()) {
-}
-
-template <class ActorType>
-template <class OtherActorType>
-ActorShared<ActorType>::ActorShared(ActorOwn<OtherActorType> &&other) : id_(other.release()), token_(0) {
-}
-
-template <class ActorType>
-template <class OtherActorType>
-ActorShared<ActorType> &ActorShared<ActorType>::operator=(ActorShared<OtherActorType> &&other) {
-  reset(other.release());
-  token_ = other.token();
-  return *this;
-}
-
-template <class ActorType>
-ActorShared<ActorType>::ActorShared(ActorShared &&other) noexcept : id_(other.release()), token_(other.token_) {
-}
-
-template <class ActorType>
-ActorShared<ActorType> &ActorShared<ActorType>::operator=(ActorShared &&other) noexcept {
-  reset(other.release());
-  token_ = other.token_;
-  return *this;
-}
-
-template <class ActorType>
-ActorShared<ActorType>::~ActorShared() {
-  reset();
-}
-
-template <class ActorType>
-uint64 ActorShared<ActorType>::token() const {
-  return token_;
-}
-
-template <class ActorType>
-bool ActorShared<ActorType>::empty() const {
-  return id_.empty();
-}
-
-template <class ActorType>
-ActorId<ActorType> ActorShared<ActorType>::get() const {
-  return id_;
-}
-
-template <class ActorType>
-ActorId<ActorType> ActorShared<ActorType>::release() {
-  return std::move(id_);
-}
-
-template <class ActorType>
-void ActorShared<ActorType>::reset(ActorId<ActorType> other) {
-  static_assert(sizeof(ActorType) > 0, "Can't use ActorShared with incomplete type");
-  if (!id_.empty()) {
-    send_event(*this, Event::hangup());
-  }
-  id_ = std::move(other);
-}
-
-template <class T>
-ActorRef::ActorRef(const ActorId<T> &actor_id) : actor_id_(actor_id) {
-}
-
-template <class T>
-ActorRef::ActorRef(ActorId<T> &&actor_id) : actor_id_(actor_id) {
-  actor_id.clear();
-}
-
-template <class T>
-ActorRef::ActorRef(const ActorShared<T> &actor_id) : actor_id_(actor_id.get()), token_(actor_id.token()) {
-}
-
-template <class T>
-ActorRef::ActorRef(ActorShared<T> &&actor_id) : actor_id_(actor_id.release()), token_(actor_id.token()) {
-}
-
-template <class T>
-ActorRef::ActorRef(const ActorOwn<T> &actor_id) : actor_id_(actor_id.get()) {
-}
-
-template <class T>
-ActorRef::ActorRef(ActorOwn<T> &&actor_id) : actor_id_(actor_id.release()) {
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/ActorInfo-decl.h b/third-party/td/td/tdactor/td/actor/impl/ActorInfo-decl.h
deleted file mode 100644
index 8aaad4127d..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/ActorInfo-decl.h
+++ /dev/null
@@ -1,128 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/ActorId-decl.h"
-#include "td/actor/impl/Event.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Heap.h"
-#include "td/utils/List.h"
-#include "td/utils/ObjectPool.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-#include <atomic>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class Actor;
-
-class ActorContext {
- public:
-  ActorContext() = default;
-  ActorContext(const ActorContext &) = delete;
-  ActorContext &operator=(const ActorContext &) = delete;
-  ActorContext(ActorContext &&) = delete;
-  ActorContext &operator=(ActorContext &&) = delete;
-  virtual ~ActorContext() = default;
-
-  virtual int32 get_id() const {
-    return 0;
-  }
-
-  void set_tag(string tag) {
-    tag_storage_ = std::move(tag);
-    tag_ = tag_storage_.c_str();
-  }
-
-  const char *tag_ = nullptr;
-  string tag_storage_;  // sometimes tag_ == tag_storage_.c_str()
-  std::weak_ptr<ActorContext> this_ptr_;
-};
-
-class ActorInfo final
-    : private ListNode
-    , private HeapNode {
- public:
-  enum class Deleter : uint8 { Destroy, None };
-
-  ActorInfo() = default;
-  ~ActorInfo() = default;
-
-  ActorInfo(ActorInfo &&) = delete;
-  ActorInfo &operator=(ActorInfo &&) = delete;
-
-  ActorInfo(const ActorInfo &) = delete;
-  ActorInfo &operator=(const ActorInfo &) = delete;
-
-  void init(int32 sched_id, Slice name, ObjectPool<ActorInfo>::OwnerPtr &&this_ptr, Actor *actor_ptr, Deleter deleter,
-            bool need_context, bool need_start_up);
-  void on_actor_moved(Actor *actor_new_ptr);
-
-  template <class ActorT>
-  ActorOwn<ActorT> transfer_ownership_to_scheduler(unique_ptr<ActorT> actor);
-  void clear();
-  void destroy_actor();
-
-  bool empty() const;
-  void start_migrate(int32 to_sched_id);
-  bool is_migrating() const;
-  int32 migrate_dest() const;
-  std::pair<int32, bool> migrate_dest_flag_atomic() const;
-
-  void finish_migrate();
-
-  ActorId<> actor_id();
-  template <class SelfT>
-  ActorId<SelfT> actor_id(SelfT *self);
-  Actor *get_actor_unsafe();
-  const Actor *get_actor_unsafe() const;
-
-  std::shared_ptr<ActorContext> set_context(std::shared_ptr<ActorContext> context);
-  std::weak_ptr<ActorContext> get_context_weak_ptr() const;
-  ActorContext *get_context();
-  const ActorContext *get_context() const;
-  CSlice get_name() const;
-
-  HeapNode *get_heap_node();
-  const HeapNode *get_heap_node() const;
-  static ActorInfo *from_heap_node(HeapNode *node);
-
-  ListNode *get_list_node();
-  const ListNode *get_list_node() const;
-  static ActorInfo *from_list_node(ListNode *node);
-
-  void start_run();
-  bool is_running() const;
-  void finish_run();
-
-  vector<Event> mailbox_;
-
-  bool need_context() const;
-  bool need_start_up() const;
-
- private:
-  Deleter deleter_ = Deleter::None;
-  bool need_context_ = true;
-  bool need_start_up_ = true;
-  bool is_running_ = false;
-
-  std::atomic<int32> sched_id_{0};
-  Actor *actor_ = nullptr;
-
-#ifdef TD_DEBUG
-  string name_;
-#endif
-  std::shared_ptr<ActorContext> context_;
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const ActorInfo &info);
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/ActorInfo.h b/third-party/td/td/tdactor/td/actor/impl/ActorInfo.h
deleted file mode 100644
index e75bd3b1e9..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/ActorInfo.h
+++ /dev/null
@@ -1,209 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/Actor-decl.h"
-#include "td/actor/impl/ActorInfo-decl.h"
-#include "td/actor/impl/Scheduler-decl.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Heap.h"
-#include "td/utils/List.h"
-#include "td/utils/logging.h"
-#include "td/utils/ObjectPool.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-#include <atomic>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-inline StringBuilder &operator<<(StringBuilder &sb, const ActorInfo &info) {
-  sb << info.get_name() << ":" << const_cast<void *>(static_cast<const void *>(&info)) << ":"
-     << const_cast<void *>(static_cast<const void *>(info.get_context()));
-  return sb;
-}
-
-inline void ActorInfo::init(int32 sched_id, Slice name, ObjectPool<ActorInfo>::OwnerPtr &&this_ptr, Actor *actor_ptr,
-                            Deleter deleter, bool need_context, bool need_start_up) {
-  CHECK(!is_running());
-  CHECK(!is_migrating());
-  sched_id_.store(sched_id, std::memory_order_relaxed);
-  actor_ = actor_ptr;
-
-  if (need_context) {
-    context_ = Scheduler::context()->this_ptr_.lock();
-    VLOG(actor) << "Set context " << context_.get() << " for " << name;
-  }
-#ifdef TD_DEBUG
-  name_.assign(name.data(), name.size());
-#endif
-
-  actor_->set_info(std::move(this_ptr));
-  deleter_ = deleter;
-  need_context_ = need_context;
-  need_start_up_ = need_start_up;
-  is_running_ = false;
-}
-
-inline bool ActorInfo::need_context() const {
-  return need_context_;
-}
-
-inline bool ActorInfo::need_start_up() const {
-  return need_start_up_;
-}
-
-inline void ActorInfo::on_actor_moved(Actor *actor_new_ptr) {
-  actor_ = actor_new_ptr;
-}
-
-inline void ActorInfo::clear() {
-  CHECK(mailbox_.empty());
-  CHECK(!actor_);
-  CHECK(!is_running());
-  CHECK(!is_migrating());
-  // NB: must be in non-migrating state
-  // store invalid scheduler identifier
-  sched_id_.store((1 << 30) - 1, std::memory_order_relaxed);
-  VLOG(actor) << "Clear context " << context_.get() << " for " << get_name();
-  context_.reset();
-}
-
-inline void ActorInfo::destroy_actor() {
-  if (!actor_) {
-    return;
-  }
-  switch (deleter_) {
-    case Deleter::Destroy:
-      std::default_delete<Actor>()(actor_);
-      break;
-    case Deleter::None:
-      break;
-  }
-  actor_ = nullptr;
-  mailbox_.clear();
-}
-
-template <class ActorT>
-ActorOwn<ActorT> ActorInfo::transfer_ownership_to_scheduler(unique_ptr<ActorT> actor) {
-  CHECK(!empty());
-  CHECK(deleter_ == Deleter::None);
-  ActorT *actor_ptr = actor.release();
-  CHECK(actor_ == static_cast<Actor *>(actor_ptr));
-  actor_ = static_cast<Actor *>(actor_ptr);
-  deleter_ = Deleter::Destroy;
-  return ActorOwn<ActorT>(actor_id(actor_ptr));
-}
-
-inline bool ActorInfo::empty() const {
-  return actor_ == nullptr;
-}
-
-inline void ActorInfo::start_migrate(int32 to_sched_id) {
-  sched_id_.store(to_sched_id | (1 << 30), std::memory_order_relaxed);
-}
-inline std::pair<int32, bool> ActorInfo::migrate_dest_flag_atomic() const {
-  int32 sched_id = sched_id_.load(std::memory_order_relaxed);
-  return std::make_pair(sched_id & ~(1 << 30), (sched_id & (1 << 30)) != 0);
-}
-inline void ActorInfo::finish_migrate() {
-  sched_id_.store(migrate_dest(), std::memory_order_relaxed);
-}
-inline bool ActorInfo::is_migrating() const {
-  return migrate_dest_flag_atomic().second;
-}
-inline int32 ActorInfo::migrate_dest() const {
-  return migrate_dest_flag_atomic().first;
-}
-
-inline ActorId<> ActorInfo::actor_id() {
-  return actor_id(actor_);
-}
-
-template <class SelfT>
-ActorId<SelfT> ActorInfo::actor_id(SelfT *self) {
-  return actor_->actor_id(self);
-}
-
-inline Actor *ActorInfo::get_actor_unsafe() {
-  return actor_;
-}
-inline const Actor *ActorInfo::get_actor_unsafe() const {
-  return actor_;
-}
-
-inline std::shared_ptr<ActorContext> ActorInfo::set_context(std::shared_ptr<ActorContext> context) {
-  CHECK(is_running());
-  context->this_ptr_ = context;
-  if (Scheduler::context()->tag_) {
-    context->set_tag(Scheduler::context()->tag_);
-  }
-  std::swap(context_, context);
-  Scheduler::context() = context_.get();
-  Scheduler::on_context_updated();
-  return context;
-}
-
-inline std::weak_ptr<ActorContext> ActorInfo::get_context_weak_ptr() const {
-  return context_;
-}
-
-inline const ActorContext *ActorInfo::get_context() const {
-  return context_.get();
-}
-
-inline ActorContext *ActorInfo::get_context() {
-  return context_.get();
-}
-
-inline CSlice ActorInfo::get_name() const {
-#ifdef TD_DEBUG
-  return name_;
-#else
-  return "";
-#endif
-}
-
-inline void ActorInfo::start_run() {
-  VLOG(actor) << "Start run actor: " << *this;
-  LOG_CHECK(!is_running_) << "Recursive call of actor " << get_name();
-  is_running_ = true;
-}
-inline void ActorInfo::finish_run() {
-  is_running_ = false;
-  if (!empty()) {
-    VLOG(actor) << "Stop run actor: " << *this;
-  }
-}
-
-inline bool ActorInfo::is_running() const {
-  return is_running_;
-}
-
-inline HeapNode *ActorInfo::get_heap_node() {
-  return this;
-}
-inline const HeapNode *ActorInfo::get_heap_node() const {
-  return this;
-}
-inline ActorInfo *ActorInfo::from_heap_node(HeapNode *node) {
-  return static_cast<ActorInfo *>(node);
-}
-inline ListNode *ActorInfo::get_list_node() {
-  return this;
-}
-inline const ListNode *ActorInfo::get_list_node() const {
-  return this;
-}
-inline ActorInfo *ActorInfo::from_list_node(ListNode *node) {
-  return static_cast<ActorInfo *>(node);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/Event.h b/third-party/td/td/tdactor/td/actor/impl/Event.h
deleted file mode 100644
index 8172a43ceb..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/Event.h
+++ /dev/null
@@ -1,247 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Closure.h"
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-class Actor;
-
-// Events
-//
-// Small structure (up to 16 bytes) used to send events between actors.
-//
-// There are some predefined types of events:
-// NoType -- uninitialized event
-// Start -- start actor
-// Stop -- stop actor
-// Yield -- wake up actor
-// Timeout -- some timeout has expired
-// Hangup -- hang up called
-// Raw -- just pass 8 bytes (union Raw is used for convenience)
-// Custom -- Send CustomEvent
-
-template <class T>
-std::enable_if_t<!std::is_base_of<Actor, T>::value> start_migrate(T &obj, int32 sched_id) {
-}
-template <class T>
-std::enable_if_t<!std::is_base_of<Actor, T>::value> finish_migrate(T &obj) {
-}
-
-class CustomEvent {
- public:
-  CustomEvent() = default;
-  CustomEvent(const CustomEvent &) = delete;
-  CustomEvent &operator=(const CustomEvent &) = delete;
-  CustomEvent(CustomEvent &&) = delete;
-  CustomEvent &operator=(CustomEvent &&) = delete;
-  virtual ~CustomEvent() = default;
-
-  virtual void run(Actor *actor) = 0;
-  virtual void start_migrate(int32 sched_id) {
-  }
-  virtual void finish_migrate() {
-  }
-};
-
-template <class ClosureT>
-class ClosureEvent final : public CustomEvent {
- public:
-  void run(Actor *actor) final {
-    closure_.run(static_cast<typename ClosureT::ActorType *>(actor));
-  }
-  template <class... ArgsT>
-  explicit ClosureEvent(ArgsT &&...args) : closure_(std::forward<ArgsT>(args)...) {
-  }
-
-  void start_migrate(int32 sched_id) final {
-    closure_.for_each([sched_id](auto &obj) {
-      using ::td::start_migrate;
-      start_migrate(obj, sched_id);
-    });
-  }
-
-  void finish_migrate() final {
-    closure_.for_each([](auto &obj) {
-      using ::td::finish_migrate;
-      finish_migrate(obj);
-    });
-  }
-
- private:
-  ClosureT closure_;
-};
-
-template <class LambdaT>
-class LambdaEvent final : public CustomEvent {
- public:
-  void run(Actor *actor) final {
-    f_();
-  }
-  template <class FromLambdaT, std::enable_if_t<!std::is_same<std::decay_t<FromLambdaT>, LambdaEvent>::value, int> = 0>
-  explicit LambdaEvent(FromLambdaT &&func) : f_(std::forward<FromLambdaT>(func)) {
-  }
-
- private:
-  LambdaT f_;
-};
-
-class Event {
- public:
-  enum class Type { NoType, Start, Stop, Yield, Timeout, Hangup, Raw, Custom };
-  Type type;
-  uint64 link_token = 0;
-  union Raw {
-    void *ptr;
-    CustomEvent *custom_event;
-    uint32 u32;
-    uint64 u64;
-  } data{};
-
-  // factory functions
-  static Event start() {
-    return Event(Type::Start);
-  }
-  static Event stop() {
-    return Event(Type::Stop);
-  }
-  static Event yield() {
-    return Event(Type::Yield);
-  }
-  static Event timeout() {
-    return Event(Type::Timeout);
-  }
-  static Event hangup() {
-    return Event(Type::Hangup);
-  }
-  static Event raw(void *ptr) {
-    return Event(Type::Raw, ptr);
-  }
-  static Event raw(uint32 u32) {
-    return Event(Type::Raw, u32);
-  }
-  static Event raw(uint64 u64) {
-    return Event(Type::Raw, u64);
-  }
-  static Event custom(CustomEvent *custom_event) {
-    return Event(Type::Custom, custom_event);
-  }
-
-  template <class FromImmediateClosureT>
-  static Event immediate_closure(FromImmediateClosureT &&closure) {
-    return custom(
-        new ClosureEvent<typename FromImmediateClosureT::Delayed>(std::forward<FromImmediateClosureT>(closure)));
-  }
-  template <class... ArgsT>
-  static Event delayed_closure(ArgsT &&...args) {
-    using DelayedClosureT = decltype(create_delayed_closure(std::forward<ArgsT>(args)...));
-    return custom(new ClosureEvent<DelayedClosureT>(std::forward<ArgsT>(args)...));
-  }
-
-  template <class FromLambdaT>
-  static Event from_lambda(FromLambdaT &&func) {
-    return custom(new LambdaEvent<std::decay_t<FromLambdaT>>(std::forward<FromLambdaT>(func)));
-  }
-
-  Event() : Event(Type::NoType) {
-  }
-  Event(const Event &) = delete;
-  Event &operator=(const Event &) = delete;
-  Event(Event &&other) noexcept : type(other.type), link_token(other.link_token), data(other.data) {
-    other.type = Type::NoType;
-  }
-  Event &operator=(Event &&other) noexcept {
-    destroy();
-    type = other.type;
-    link_token = other.link_token;
-    data = other.data;
-    other.type = Type::NoType;
-    return *this;
-  }
-  ~Event() {
-    destroy();
-  }
-
-  bool empty() const {
-    return type == Type::NoType;
-  }
-
-  void clear() {
-    destroy();
-    type = Type::NoType;
-  }
-
-  Event &set_link_token(uint64 new_link_token) {
-    link_token = new_link_token;
-    return *this;
-  }
-
-  friend void start_migrate(Event &obj, int32 sched_id) {
-    if (obj.type == Type::Custom) {
-      obj.data.custom_event->start_migrate(sched_id);
-    }
-  }
-  friend void finish_migrate(Event &obj) {
-    if (obj.type == Type::Custom) {
-      obj.data.custom_event->finish_migrate();
-    }
-  }
-
- private:
-  explicit Event(Type type) : type(type) {
-  }
-
-  Event(Type type, void *ptr) : Event(type) {
-    data.ptr = ptr;
-  }
-  Event(Type type, CustomEvent *custom_event) : Event(type) {
-    data.custom_event = custom_event;
-  }
-  Event(Type type, uint32 u32) : Event(type) {
-    data.u32 = u32;
-  }
-  Event(Type type, uint64 u64) : Event(type) {
-    data.u64 = u64;
-  }
-
-  void destroy() {
-    if (type == Type::Custom) {
-      delete data.custom_event;
-    }
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const Event &e) {
-  string_builder << "Event::";
-  switch (e.type) {
-    case Event::Type::Start:
-      return string_builder << "Start";
-    case Event::Type::Stop:
-      return string_builder << "Stop";
-    case Event::Type::Yield:
-      return string_builder << "Yield";
-    case Event::Type::Hangup:
-      return string_builder << "Hangup";
-    case Event::Type::Timeout:
-      return string_builder << "Timeout";
-    case Event::Type::Raw:
-      return string_builder << "Raw";
-    case Event::Type::Custom:
-      return string_builder << "Custom";
-    case Event::Type::NoType:
-    default:
-      return string_builder << "NoType";
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/EventFull-decl.h b/third-party/td/td/tdactor/td/actor/impl/EventFull-decl.h
deleted file mode 100644
index 28e4d190c5..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/EventFull-decl.h
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/ActorId-decl.h"
-#include "td/actor/impl/Event.h"
-
-#include "td/utils/type_traits.h"
-
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-class EventFull {
- public:
-  EventFull() = default;
-
-  bool empty() const {
-    return data_.empty();
-  }
-
-  void clear() {
-    data_.clear();
-  }
-
-  ActorId<> actor_id() const {
-    return actor_id_;
-  }
-  Event &data() {
-    return data_;
-  }
-
-  void try_emit_later();
-  void try_emit();
-
- private:
-  friend class EventCreator;
-
-  EventFull(ActorRef actor_ref, Event &&data) : actor_id_(actor_ref.get()), data_(std::move(data)) {
-    data_.link_token = actor_ref.token();
-  }
-  template <class T>
-  EventFull(ActorId<T> actor_id, Event &&data) : actor_id_(std::move(actor_id)), data_(std::move(data)) {
-  }
-
-  ActorId<> actor_id_;
-
-  Event data_;
-};
-
-class EventCreator {
- public:
-  template <class ActorIdT, class FunctionT, class... ArgsT>
-  static EventFull closure(ActorIdT &&actor_id, FunctionT function, ArgsT &&...args) {
-    using ActorT = typename std::decay_t<ActorIdT>::ActorT;
-    using FunctionClassT = member_function_class_t<FunctionT>;
-    static_assert(std::is_base_of<FunctionClassT, ActorT>::value, "unsafe send_closure");
-
-    return EventFull(std::forward<ActorIdT>(actor_id), Event::delayed_closure(function, std::forward<ArgsT>(args)...));
-  }
-
-  template <class LambdaT>
-  static EventFull from_lambda(ActorRef actor_ref, LambdaT &&func) {
-    return EventFull(actor_ref, Event::from_lambda(std::forward<LambdaT>(func)));
-  }
-
-  static EventFull yield(ActorRef actor_ref) {
-    return EventFull(actor_ref, Event::yield());
-  }
-  static EventFull raw(ActorRef actor_ref, uint64 data) {
-    return EventFull(actor_ref, Event::raw(data));
-  }
-  static EventFull raw(ActorRef actor_ref, void *ptr) {
-    return EventFull(actor_ref, Event::raw(ptr));
-  }
-
-  static EventFull event_unsafe(ActorId<> actor_id, Event &&event) {
-    return EventFull(actor_id, std::move(event));
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/EventFull.h b/third-party/td/td/tdactor/td/actor/impl/EventFull.h
deleted file mode 100644
index a62a37ccad..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/EventFull.h
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/EventFull-decl.h"
-#include "td/actor/impl/Scheduler-decl.h"
-
-#include "td/utils/common.h"
-
-#include <utility>
-
-namespace td {
-
-inline void EventFull::try_emit_later() {
-  if (empty()) {
-    return;
-  }
-  auto link_token = data_.link_token;
-  send_event_later(ActorShared<>(actor_id_, link_token), std::move(data_));
-  data_.clear();
-  CHECK(empty());
-}
-
-inline void EventFull::try_emit() {
-  if (empty()) {
-    return;
-  }
-  auto link_token = data_.link_token;
-  send_event(ActorShared<>(actor_id_, link_token), std::move(data_));
-  data_.clear();
-  CHECK(empty());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/Scheduler-decl.h b/third-party/td/td/tdactor/td/actor/impl/Scheduler-decl.h
deleted file mode 100644
index f05aa794cf..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/Scheduler-decl.h
+++ /dev/null
@@ -1,314 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/Actor-decl.h"
-#include "td/actor/impl/ActorId-decl.h"
-#include "td/actor/impl/EventFull-decl.h"
-
-#include "td/utils/Closure.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Heap.h"
-#include "td/utils/List.h"
-#include "td/utils/logging.h"
-#include "td/utils/MovableValue.h"
-#include "td/utils/MpscPollableQueue.h"
-#include "td/utils/ObjectPool.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/Poll.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Time.h"
-#include "td/utils/type_traits.h"
-
-#include <functional>
-#include <memory>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-extern int VERBOSITY_NAME(actor);
-
-class ActorInfo;
-
-class Scheduler;
-class SchedulerGuard {
- public:
-  explicit SchedulerGuard(Scheduler *scheduler, bool lock = true);
-  ~SchedulerGuard();
-  SchedulerGuard(const SchedulerGuard &) = delete;
-  SchedulerGuard &operator=(const SchedulerGuard &) = delete;
-  SchedulerGuard(SchedulerGuard &&) = default;
-  SchedulerGuard &operator=(SchedulerGuard &&) = delete;
-
- private:
-  MovableValue<bool> is_valid_ = true;
-  bool is_locked_;
-  Scheduler *scheduler_;
-  ActorContext *save_context_;
-  Scheduler *save_scheduler_;
-  const char *save_tag_;
-};
-
-class Scheduler {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-    virtual void on_finish() = 0;
-    virtual void register_at_finish(std::function<void()>) = 0;
-  };
-  Scheduler() = default;
-  Scheduler(const Scheduler &) = delete;
-  Scheduler &operator=(const Scheduler &) = delete;
-  Scheduler(Scheduler &&) = delete;
-  Scheduler &operator=(Scheduler &&) = delete;
-  ~Scheduler();
-
-  void init(int32 id, std::vector<std::shared_ptr<MpscPollableQueue<EventFull>>> outbound, Callback *callback);
-
-  int32 sched_id() const;
-  int32 sched_count() const;
-
-  template <class ActorT, class... Args>
-  TD_WARN_UNUSED_RESULT ActorOwn<ActorT> create_actor(Slice name, Args &&...args);
-  template <class ActorT, class... Args>
-  TD_WARN_UNUSED_RESULT ActorOwn<ActorT> create_actor_on_scheduler(Slice name, int32 sched_id, Args &&...args);
-  template <class ActorT>
-  TD_WARN_UNUSED_RESULT ActorOwn<ActorT> register_actor(Slice name, ActorT *actor_ptr, int32 sched_id = -1);
-  template <class ActorT>
-  TD_WARN_UNUSED_RESULT ActorOwn<ActorT> register_actor(Slice name, unique_ptr<ActorT> actor_ptr, int32 sched_id = -1);
-
-  template <class ActorT>
-  TD_WARN_UNUSED_RESULT ActorOwn<ActorT> register_existing_actor(unique_ptr<ActorT> actor_ptr);
-
-  void send_to_scheduler(int32 sched_id, const ActorId<> &actor_id, Event &&event);
-  void send_to_other_scheduler(int32 sched_id, const ActorId<> &actor_id, Event &&event);
-
-  void run_on_scheduler(int32 sched_id, Promise<Unit> action);  // TODO Action
-
-  template <class T>
-  void destroy_on_scheduler(int32 sched_id, T &value);
-
-  template <class T>
-  void destroy_on_scheduler_unique_ptr(int32 sched_id, T &value);
-
-  template <class... ArgsT>
-  void destroy_on_scheduler(int32 sched_id, ArgsT &...values);
-
-  template <class EventT>
-  void send_lambda_immediately(ActorRef actor_ref, EventT &&func);
-
-  template <class EventT>
-  void send_lambda_later(ActorRef actor_ref, EventT &&func);
-
-  template <class EventT>
-  void send_closure_immediately(ActorRef actor_ref, EventT &&closure);
-
-  template <class EventT>
-  void send_closure_later(ActorRef actor_ref, EventT &&closure);
-
-  void send_immediately(ActorRef actor_ref, Event &&event);
-
-  void send_later(ActorRef actor_ref, Event &&event);
-
-  void before_tail_send(const ActorId<> &actor_id);
-
-  static void subscribe(PollableFd fd, PollFlags flags = PollFlags::ReadWrite());
-  static void unsubscribe(PollableFdRef fd);
-  static void unsubscribe_before_close(PollableFdRef fd);
-
-  void yield_actor(Actor *actor);
-  void stop_actor(Actor *actor);
-  void do_stop_actor(Actor *actor);
-  uint64 get_link_token(Actor *actor);
-  void migrate_actor(Actor *actor, int32 dest_sched_id);
-  void do_migrate_actor(Actor *actor, int32 dest_sched_id);
-  void start_migrate_actor(Actor *actor, int32 dest_sched_id);
-  void finish_migrate_actor(Actor *actor);
-
-  double get_actor_timeout(const Actor *actor) const;
-  void set_actor_timeout_in(Actor *actor, double timeout);
-  void set_actor_timeout_at(Actor *actor, double timeout_at);
-  void cancel_actor_timeout(Actor *actor);
-
-  void finish();
-  void yield();
-  void run(Timestamp timeout);
-  void run_no_guard(Timestamp timeout);
-
-  void wakeup();
-
-  static Scheduler *instance();
-  static ActorContext *&context();
-  static void on_context_updated();
-
-  SchedulerGuard get_guard();
-  SchedulerGuard get_const_guard();
-
-  Timestamp get_timeout();
-
- private:
-  static void set_scheduler(Scheduler *scheduler);
-
-  void destroy_on_scheduler_impl(int32 sched_id, Promise<Unit> action);
-
-  class ServiceActor final : public Actor {
-   public:
-    void set_queue(std::shared_ptr<MpscPollableQueue<EventFull>> queues);
-
-   private:
-    std::shared_ptr<MpscPollableQueue<EventFull>> inbound_;
-    bool subscribed_{false};
-
-    void start_up() final;
-    void loop() final;
-    void tear_down() final;
-  };
-  friend class ServiceActor;
-
-  void clear();
-
-  void do_event(ActorInfo *actor, Event &&event);
-
-  void enter_actor(ActorInfo *actor_info);
-  void exit_actor(ActorInfo *actor_info);
-
-  void yield_actor(ActorInfo *actor_info);
-  void stop_actor(ActorInfo *actor_info);
-  void do_stop_actor(ActorInfo *actor_info);
-  uint64 get_link_token(ActorInfo *actor_info);
-  void migrate_actor(ActorInfo *actor_info, int32 dest_sched_id);
-  void do_migrate_actor(ActorInfo *actor_info, int32 dest_sched_id);
-  void start_migrate_actor(ActorInfo *actor_info, int32 dest_sched_id);
-
-  double get_actor_timeout(const ActorInfo *actor_info) const;
-  void set_actor_timeout_in(ActorInfo *actor_info, double timeout);
-  void set_actor_timeout_at(ActorInfo *actor_info, double timeout_at);
-  void cancel_actor_timeout(ActorInfo *actor_info);
-
-  void register_migrated_actor(ActorInfo *actor_info);
-  void add_to_mailbox(ActorInfo *actor_info, Event &&event);
-  void clear_mailbox(ActorInfo *actor_info);
-
-  void flush_mailbox(ActorInfo *actor_info);
-
-  void get_actor_sched_id_to_send_immediately(const ActorInfo *actor_info, int32 &actor_sched_id,
-                                              bool &on_current_sched, bool &can_send_immediately);
-
-  template <class RunFuncT, class EventFuncT>
-  void send_immediately_impl(const ActorId<> &actor_id, const RunFuncT &run_func, const EventFuncT &event_func);
-
-  void send_later_impl(const ActorId<> &actor_id, Event &&event);
-
-  Timestamp run_timeout();
-  void run_mailbox();
-  Timestamp run_events(Timestamp timeout);
-  void run_poll(Timestamp timeout);
-
-  template <class ActorT>
-  ActorOwn<ActorT> register_actor_impl(Slice name, ActorT *actor_ptr, Actor::Deleter deleter, int32 sched_id);
-  void destroy_actor(ActorInfo *actor_info);
-
-  static TD_THREAD_LOCAL Scheduler *scheduler_;
-  static TD_THREAD_LOCAL ActorContext *context_;
-
-  Callback *callback_ = nullptr;
-  unique_ptr<ObjectPool<ActorInfo>> actor_info_pool_;
-
-  int32 actor_count_ = 0;
-  ListNode pending_actors_list_;
-  ListNode ready_actors_list_;
-  KHeap<double> timeout_queue_;
-
-  FlatHashMap<ActorInfo *, std::vector<Event>> pending_events_;
-
-  ServiceActor service_actor_;
-  Poll poll_;
-
-  bool yield_flag_ = false;
-  bool has_guard_ = false;
-  bool close_flag_ = false;
-
-  int32 sched_id_ = 0;
-  int32 sched_n_ = 0;
-  std::shared_ptr<MpscPollableQueue<EventFull>> inbound_queue_;
-  std::vector<std::shared_ptr<MpscPollableQueue<EventFull>>> outbound_queues_;
-
-  std::shared_ptr<ActorContext> save_context_;
-
-  struct EventContext {
-    int32 dest_sched_id{0};
-    enum Flags { Stop = 1, Migrate = 2 };
-    int32 flags{0};
-    uint64 link_token{0};
-
-    ActorInfo *actor_info{nullptr};
-  };
-  EventContext *event_context_ptr_{nullptr};
-
-  friend class GlobalScheduler;
-  friend class SchedulerGuard;
-  friend class EventGuard;
-};
-
-/*** Interface to current scheduler ***/
-template <class ActorT, class... Args>
-TD_WARN_UNUSED_RESULT ActorOwn<ActorT> create_actor(Slice name, Args &&...args);
-template <class ActorT, class... Args>
-TD_WARN_UNUSED_RESULT ActorOwn<ActorT> create_actor_on_scheduler(Slice name, int32 sched_id, Args &&...args);
-template <class ActorT>
-TD_WARN_UNUSED_RESULT ActorOwn<ActorT> register_actor(Slice name, ActorT *actor_ptr, int32 sched_id = -1);
-template <class ActorT>
-TD_WARN_UNUSED_RESULT ActorOwn<ActorT> register_actor(Slice name, unique_ptr<ActorT> actor_ptr, int32 sched_id = -1);
-
-template <class ActorT>
-TD_WARN_UNUSED_RESULT ActorOwn<ActorT> register_existing_actor(unique_ptr<ActorT> actor_ptr);
-
-template <class ActorIdT, class FunctionT, class... ArgsT>
-void send_closure(ActorIdT &&actor_id, FunctionT function, ArgsT &&...args) {
-  using ActorT = typename std::decay_t<ActorIdT>::ActorT;
-  using FunctionClassT = member_function_class_t<FunctionT>;
-  static_assert(std::is_base_of<FunctionClassT, ActorT>::value, "unsafe send_closure");
-
-  Scheduler::instance()->send_closure_immediately(std::forward<ActorIdT>(actor_id),
-                                                  create_immediate_closure(function, std::forward<ArgsT>(args)...));
-}
-
-template <class ActorIdT, class FunctionT, class... ArgsT>
-void send_closure_later(ActorIdT &&actor_id, FunctionT function, ArgsT &&...args) {
-  using ActorT = typename std::decay_t<ActorIdT>::ActorT;
-  using FunctionClassT = member_function_class_t<FunctionT>;
-  static_assert(std::is_base_of<FunctionClassT, ActorT>::value, "unsafe send_closure");
-
-  Scheduler::instance()->send_later(std::forward<ActorIdT>(actor_id),
-                                    Event::delayed_closure(function, std::forward<ArgsT>(args)...));
-}
-
-template <class... ArgsT>
-void send_lambda(ActorRef actor_ref, ArgsT &&...args) {
-  Scheduler::instance()->send_lambda_immediately(actor_ref, std::forward<ArgsT>(args)...);
-}
-
-template <class... ArgsT>
-void send_event(ActorRef actor_ref, ArgsT &&...args) {
-  Scheduler::instance()->send_immediately(actor_ref, std::forward<ArgsT>(args)...);
-}
-
-template <class... ArgsT>
-void send_event_later(ActorRef actor_ref, ArgsT &&...args) {
-  Scheduler::instance()->send_later(actor_ref, std::forward<ArgsT>(args)...);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/Scheduler.cpp b/third-party/td/td/tdactor/td/actor/impl/Scheduler.cpp
deleted file mode 100644
index c7bb795d26..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/Scheduler.cpp
+++ /dev/null
@@ -1,611 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/impl/Scheduler.h"
-
-#include "td/actor/impl/Actor.h"
-#include "td/actor/impl/ActorId.h"
-#include "td/actor/impl/ActorInfo.h"
-#include "td/actor/impl/Event.h"
-#include "td/actor/impl/EventFull.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/format.h"
-#include "td/utils/List.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/MpscPollableQueue.h"
-#include "td/utils/ObjectPool.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Promise.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-#include <functional>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-int VERBOSITY_NAME(actor) = VERBOSITY_NAME(DEBUG) + 10;
-
-TD_THREAD_LOCAL Scheduler *Scheduler::scheduler_;   // static zero-initialized
-TD_THREAD_LOCAL ActorContext *Scheduler::context_;  // static zero-initialized
-
-Scheduler::~Scheduler() {
-  clear();
-}
-
-Scheduler *Scheduler::instance() {
-  return scheduler_;
-}
-
-ActorContext *&Scheduler::context() {
-  return context_;
-}
-
-void Scheduler::on_context_updated() {
-  LOG_TAG = context_->tag_;
-}
-
-void Scheduler::set_scheduler(Scheduler *scheduler) {
-  scheduler_ = scheduler;
-}
-
-void Scheduler::ServiceActor::set_queue(std::shared_ptr<MpscPollableQueue<EventFull>> queues) {
-  inbound_ = std::move(queues);
-}
-
-void Scheduler::ServiceActor::start_up() {
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-  CHECK(!inbound_);
-#else
-  if (!inbound_) {
-    return;
-  }
-#if !TD_PORT_WINDOWS
-  auto &fd = inbound_->reader_get_event_fd();
-  Scheduler::subscribe(fd.get_poll_info().extract_pollable_fd(this), PollFlags::Read());
-  subscribed_ = true;
-#endif
-  yield();
-#endif
-}
-
-void Scheduler::ServiceActor::loop() {
-  auto &queue = inbound_;
-  int ready_n = queue->reader_wait_nonblock();
-  VLOG(actor) << "Have " << ready_n << " pending events";
-  if (ready_n == 0) {
-    return;
-  }
-  while (ready_n-- > 0) {
-    EventFull event = queue->reader_get_unsafe();
-    if (event.actor_id().empty()) {
-      if (event.data().empty()) {
-        Scheduler::instance()->yield();
-      } else {
-        Scheduler::instance()->register_migrated_actor(static_cast<ActorInfo *>(event.data().data.ptr));
-      }
-    } else {
-      VLOG(actor) << "Receive " << event.data();
-      finish_migrate(event.data());
-      event.try_emit();
-    }
-  }
-  queue->reader_flush();
-  yield();
-}
-
-void Scheduler::ServiceActor::tear_down() {
-  if (!subscribed_) {
-    return;
-  }
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-  CHECK(!inbound_);
-#else
-  if (!inbound_) {
-    return;
-  }
-  auto &fd = inbound_->reader_get_event_fd();
-  Scheduler::unsubscribe(fd.get_poll_info().get_pollable_fd_ref());
-  subscribed_ = false;
-#endif
-}
-
-/*** SchedlerGuard ***/
-SchedulerGuard::SchedulerGuard(Scheduler *scheduler, bool lock) : scheduler_(scheduler) {
-  if (lock) {
-    // the next check can fail if OS killed the scheduler's thread without releasing the guard
-    CHECK(!scheduler_->has_guard_);
-    scheduler_->has_guard_ = true;
-  }
-  is_locked_ = lock;
-  save_scheduler_ = Scheduler::instance();
-  Scheduler::set_scheduler(scheduler_);
-
-  // Scheduler::context() must be not null
-  save_context_ = scheduler_->save_context_.get();
-  save_tag_ = LOG_TAG;
-  LOG_TAG = save_context_->tag_;
-  std::swap(save_context_, Scheduler::context());
-}
-
-SchedulerGuard::~SchedulerGuard() {
-  if (is_valid_.get()) {
-    std::swap(save_context_, scheduler_->context());
-    Scheduler::set_scheduler(save_scheduler_);
-    if (is_locked_) {
-      CHECK(scheduler_->has_guard_);
-      scheduler_->has_guard_ = false;
-    }
-    LOG_TAG = save_tag_;
-  }
-}
-
-/*** EventGuard ***/
-EventGuard::EventGuard(Scheduler *scheduler, ActorInfo *actor_info) : scheduler_(scheduler) {
-  actor_info->start_run();
-  event_context_.actor_info = actor_info;
-  event_context_ptr_ = &event_context_;
-
-  save_context_ = actor_info->get_context();
-#ifdef TD_DEBUG
-  save_log_tag2_ = actor_info->get_name().c_str();
-#endif
-  swap_context(actor_info);
-}
-
-EventGuard::~EventGuard() {
-  auto info = event_context_.actor_info;
-  auto node = info->get_list_node();
-  node->remove();
-  if (info->mailbox_.empty()) {
-    scheduler_->pending_actors_list_.put(node);
-  } else {
-    scheduler_->ready_actors_list_.put(node);
-  }
-  info->finish_run();
-  swap_context(info);
-  CHECK(!info->need_context() || save_context_ == info->get_context());
-#ifdef TD_DEBUG
-  LOG_CHECK(!info->need_context() || save_log_tag2_ == info->get_name().c_str())
-      << info->need_context() << " " << info->empty() << " " << info->is_migrating() << " " << save_log_tag2_ << " "
-      << info->get_name() << " " << scheduler_->close_flag_;
-#endif
-  if (event_context_.flags & Scheduler::EventContext::Stop) {
-    scheduler_->do_stop_actor(info);
-    return;
-  }
-  if (event_context_.flags & Scheduler::EventContext::Migrate) {
-    scheduler_->do_migrate_actor(info, event_context_.dest_sched_id);
-  }
-}
-
-void EventGuard::swap_context(ActorInfo *info) {
-  std::swap(scheduler_->event_context_ptr_, event_context_ptr_);
-
-  if (!info->need_context()) {
-    return;
-  }
-
-#ifdef TD_DEBUG
-  std::swap(LOG_TAG2, save_log_tag2_);
-#endif
-
-  auto *current_context_ptr = &Scheduler::context();
-  if (save_context_ != *current_context_ptr) {
-    std::swap(save_context_, *current_context_ptr);
-    Scheduler::on_context_updated();
-  }
-}
-
-void Scheduler::init(int32 id, std::vector<std::shared_ptr<MpscPollableQueue<EventFull>>> outbound,
-                     Callback *callback) {
-  save_context_ = std::make_shared<ActorContext>();
-  save_context_->this_ptr_ = save_context_;
-  save_context_->tag_ = LOG_TAG;
-
-  auto guard = get_guard();
-
-  callback_ = callback;
-  actor_info_pool_ = make_unique<ObjectPool<ActorInfo>>();
-
-  yield_flag_ = false;
-  actor_count_ = 0;
-  sched_id_ = 0;
-
-  poll_.init();
-
-  if (!outbound.empty()) {
-    inbound_queue_ = std::move(outbound[id]);
-  }
-  outbound_queues_ = std::move(outbound);
-  sched_id_ = id;
-  sched_n_ = static_cast<int32>(outbound_queues_.size());
-  service_actor_.set_queue(inbound_queue_);
-  register_actor(PSLICE() << "ServiceActor" << id, &service_actor_).release();
-}
-
-void Scheduler::clear() {
-  if (service_actor_.empty()) {
-    return;
-  }
-  close_flag_ = true;
-  auto guard = get_guard();
-
-  // Stop all actors
-  if (!service_actor_.empty()) {
-    service_actor_.do_stop();
-  }
-  while (!pending_actors_list_.empty()) {
-    auto actor_info = ActorInfo::from_list_node(pending_actors_list_.get());
-    do_stop_actor(actor_info);
-  }
-  while (!ready_actors_list_.empty()) {
-    auto actor_info = ActorInfo::from_list_node(ready_actors_list_.get());
-    do_stop_actor(actor_info);
-  }
-  poll_.clear();
-
-  if (callback_ && !ExitGuard::is_exited()) {
-    // can't move lambda with unique_ptr inside into std::function
-    auto ptr = actor_info_pool_.release();
-    callback_->register_at_finish([ptr] { delete ptr; });
-  } else {
-    actor_info_pool_.reset();
-  }
-}
-
-void Scheduler::do_event(ActorInfo *actor_info, Event &&event) {
-  event_context_ptr_->link_token = event.link_token;
-  auto actor = actor_info->get_actor_unsafe();
-  VLOG(actor) << *actor_info << ' ' << event;
-  switch (event.type) {
-    case Event::Type::Start:
-      actor->start_up();
-      break;
-    case Event::Type::Stop:
-      actor->tear_down();
-      break;
-    case Event::Type::Yield:
-      actor->wakeup();
-      break;
-    case Event::Type::Hangup:
-      if (get_link_token(actor) != 0) {
-        actor->hangup_shared();
-      } else {
-        actor->hangup();
-      }
-      break;
-    case Event::Type::Timeout:
-      actor->timeout_expired();
-      break;
-    case Event::Type::Raw:
-      actor->raw_event(event.data);
-      break;
-    case Event::Type::Custom:
-      event.data.custom_event->run(actor);
-      break;
-    case Event::Type::NoType:
-    default:
-      UNREACHABLE();
-      break;
-  }
-  // can't clear event here. It may be already destroyed during destroy_actor
-}
-
-void Scheduler::get_actor_sched_id_to_send_immediately(const ActorInfo *actor_info, int32 &actor_sched_id,
-                                                       bool &on_current_sched, bool &can_send_immediately) {
-  bool is_migrating;
-  std::tie(actor_sched_id, is_migrating) = actor_info->migrate_dest_flag_atomic();
-  on_current_sched = !is_migrating && sched_id_ == actor_sched_id;
-  CHECK(has_guard_ || !on_current_sched);
-  can_send_immediately = on_current_sched && !actor_info->is_running() && actor_info->mailbox_.empty();
-}
-
-void Scheduler::send_later_impl(const ActorId<> &actor_id, Event &&event) {
-  ActorInfo *actor_info = actor_id.get_actor_info();
-  if (unlikely(actor_info == nullptr || close_flag_)) {
-    return;
-  }
-
-  int32 actor_sched_id;
-  bool is_migrating;
-  std::tie(actor_sched_id, is_migrating) = actor_info->migrate_dest_flag_atomic();
-  bool on_current_sched = !is_migrating && sched_id_ == actor_sched_id;
-  CHECK(has_guard_ || !on_current_sched);
-
-  if (on_current_sched) {
-    add_to_mailbox(actor_info, std::move(event));
-  } else {
-    send_to_scheduler(actor_sched_id, actor_id, std::move(event));
-  }
-}
-
-void Scheduler::register_migrated_actor(ActorInfo *actor_info) {
-  VLOG(actor) << "Register migrated actor " << *actor_info << ", " << tag("actor_count", actor_count_);
-  actor_count_++;
-  LOG_CHECK(actor_info->is_migrating()) << *actor_info << ' ' << actor_count_ << ' ' << sched_id_ << ' '
-                                        << actor_info->migrate_dest() << ' ' << actor_info->is_running() << ' '
-                                        << close_flag_;
-  CHECK(sched_id_ == actor_info->migrate_dest());
-  // CHECK(!actor_info->is_running());
-  actor_info->finish_migrate();
-  for (auto &event : actor_info->mailbox_) {
-    finish_migrate(event);
-  }
-  auto it = pending_events_.find(actor_info);
-  if (it != pending_events_.end()) {
-    append(actor_info->mailbox_, std::move(it->second));
-    pending_events_.erase(it);
-  }
-  if (actor_info->mailbox_.empty()) {
-    pending_actors_list_.put(actor_info->get_list_node());
-  } else {
-    ready_actors_list_.put(actor_info->get_list_node());
-  }
-  actor_info->get_actor_unsafe()->on_finish_migrate();
-}
-
-void Scheduler::send_to_other_scheduler(int32 sched_id, const ActorId<> &actor_id, Event &&event) {
-  if (sched_id < sched_count()) {
-    auto actor_info = actor_id.get_actor_info();
-    if (actor_info) {
-      VLOG(actor) << "Send to " << *actor_info << " on scheduler " << sched_id << ": " << event;
-    } else {
-      VLOG(actor) << "Send to scheduler " << sched_id << ": " << event;
-    }
-    start_migrate(event, sched_id);
-    outbound_queues_[sched_id]->writer_put(EventCreator::event_unsafe(actor_id, std::move(event)));
-    outbound_queues_[sched_id]->writer_flush();
-  }
-}
-
-void Scheduler::run_on_scheduler(int32 sched_id, Promise<Unit> action) {
-  if (sched_id >= 0 && sched_id_ != sched_id) {
-    class Worker final : public Actor {
-     public:
-      explicit Worker(Promise<Unit> action) : action_(std::move(action)) {
-      }
-
-     private:
-      Promise<Unit> action_;
-
-      void start_up() final {
-        action_.set_value(Unit());
-        stop();
-      }
-    };
-    create_actor_on_scheduler<Worker>("RunOnSchedulerWorker", sched_id, std::move(action)).release();
-    return;
-  }
-
-  action.set_value(Unit());
-}
-
-void Scheduler::destroy_on_scheduler_impl(int32 sched_id, Promise<Unit> action) {
-  auto empty_context = std::make_shared<ActorContext>();
-  empty_context->this_ptr_ = empty_context;
-  ActorContext *current_context = context_;
-  context_ = empty_context.get();
-
-  const char *current_tag = LOG_TAG;
-  LOG_TAG = nullptr;
-
-  run_on_scheduler(sched_id, std::move(action));
-
-  context_ = current_context;
-  LOG_TAG = current_tag;
-}
-
-void Scheduler::add_to_mailbox(ActorInfo *actor_info, Event &&event) {
-  if (!actor_info->is_running()) {
-    auto node = actor_info->get_list_node();
-    node->remove();
-    ready_actors_list_.put(node);
-  }
-  VLOG(actor) << "Add to mailbox: " << *actor_info << " " << event;
-  actor_info->mailbox_.push_back(std::move(event));
-}
-
-void Scheduler::do_stop_actor(Actor *actor) {
-  return do_stop_actor(actor->get_info());
-}
-
-void Scheduler::do_stop_actor(ActorInfo *actor_info) {
-  CHECK(!actor_info->is_migrating());
-  LOG_CHECK(actor_info->migrate_dest() == sched_id_) << actor_info->migrate_dest() << " " << sched_id_;
-  ObjectPool<ActorInfo>::OwnerPtr owner_ptr;
-  if (actor_info->need_start_up()) {
-    EventGuard guard(this, actor_info);
-    do_event(actor_info, Event::stop());
-    owner_ptr = actor_info->get_actor_unsafe()->clear();
-    // Actor context is visible in destructor
-    actor_info->destroy_actor();
-    event_context_ptr_->flags = 0;
-  } else {
-    owner_ptr = actor_info->get_actor_unsafe()->clear();
-    actor_info->destroy_actor();
-  }
-  destroy_actor(actor_info);
-}
-
-void Scheduler::migrate_actor(Actor *actor, int32 dest_sched_id) {
-  migrate_actor(actor->get_info(), dest_sched_id);
-}
-
-void Scheduler::migrate_actor(ActorInfo *actor_info, int32 dest_sched_id) {
-  CHECK(event_context_ptr_->actor_info == actor_info);
-  if (sched_id_ == dest_sched_id) {
-    return;
-  }
-  event_context_ptr_->flags |= EventContext::Migrate;
-  event_context_ptr_->dest_sched_id = dest_sched_id;
-}
-
-void Scheduler::do_migrate_actor(Actor *actor, int32 dest_sched_id) {
-  do_migrate_actor(actor->get_info(), dest_sched_id);
-}
-
-void Scheduler::do_migrate_actor(ActorInfo *actor_info, int32 dest_sched_id) {
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-  dest_sched_id = 0;
-#endif
-  if (sched_id_ == dest_sched_id) {
-    return;
-  }
-  start_migrate_actor(actor_info, dest_sched_id);
-  send_to_other_scheduler(dest_sched_id, ActorId<>(), Event::raw(actor_info));
-}
-
-void Scheduler::start_migrate_actor(Actor *actor, int32 dest_sched_id) {
-  start_migrate_actor(actor->get_info(), dest_sched_id);
-}
-
-void Scheduler::start_migrate_actor(ActorInfo *actor_info, int32 dest_sched_id) {
-  VLOG(actor) << "Start migrate actor " << *actor_info << " to scheduler " << dest_sched_id << ", "
-              << tag("actor_count", actor_count_);
-  actor_count_--;
-  CHECK(actor_count_ >= 0);
-  actor_info->get_actor_unsafe()->on_start_migrate(dest_sched_id);
-  for (auto &event : actor_info->mailbox_) {
-    start_migrate(event, dest_sched_id);
-  }
-  actor_info->start_migrate(dest_sched_id);
-  actor_info->get_list_node()->remove();
-  cancel_actor_timeout(actor_info);
-}
-
-double Scheduler::get_actor_timeout(const ActorInfo *actor_info) const {
-  const HeapNode *heap_node = actor_info->get_heap_node();
-  return heap_node->in_heap() ? timeout_queue_.get_key(heap_node) - Time::now() : 0.0;
-}
-
-void Scheduler::set_actor_timeout_in(ActorInfo *actor_info, double timeout) {
-  if (timeout > 1e10) {
-    timeout = 1e10;
-  }
-  if (timeout < 0) {
-    timeout = 0;
-  }
-  double expires_at = Time::now() + timeout;
-  set_actor_timeout_at(actor_info, expires_at);
-}
-
-void Scheduler::set_actor_timeout_at(ActorInfo *actor_info, double timeout_at) {
-  HeapNode *heap_node = actor_info->get_heap_node();
-  VLOG(actor) << "Set actor " << *actor_info << " timeout in " << timeout_at - Time::now_cached();
-  if (heap_node->in_heap()) {
-    timeout_queue_.fix(timeout_at, heap_node);
-  } else {
-    timeout_queue_.insert(timeout_at, heap_node);
-  }
-}
-
-void Scheduler::run_poll(Timestamp timeout) {
-  // we can't wait for less than 1ms
-  auto timeout_ms = static_cast<int>(clamp(timeout.in(), 0.0, 1000000.0) * 1000 + 1);
-#if TD_PORT_WINDOWS
-  CHECK(inbound_queue_);
-  inbound_queue_->reader_get_event_fd().wait(timeout_ms);
-  service_actor_.notify();
-#elif TD_PORT_POSIX
-  poll_.run(timeout_ms);
-#endif
-}
-
-void Scheduler::flush_mailbox(ActorInfo *actor_info) {
-  auto &mailbox = actor_info->mailbox_;
-  size_t mailbox_size = mailbox.size();
-  CHECK(mailbox_size != 0);
-  EventGuard guard(this, actor_info);
-  size_t i = 0;
-  for (; i < mailbox_size && guard.can_run(); i++) {
-    do_event(actor_info, std::move(mailbox[i]));
-  }
-  mailbox.erase(mailbox.begin(), mailbox.begin() + i);
-}
-
-void Scheduler::run_mailbox() {
-  VLOG(actor) << "Run mailbox : begin";
-  ListNode actors_list = std::move(ready_actors_list_);
-  while (!actors_list.empty()) {
-    ListNode *node = actors_list.get();
-    CHECK(node);
-    auto actor_info = ActorInfo::from_list_node(node);
-    flush_mailbox(actor_info);
-  }
-  VLOG(actor) << "Run mailbox : finish " << actor_count_;
-
-  //Useful for debug, but O(ActorsCount) check
-
-  //int cnt = 0;
-  //for (ListNode *end = &pending_actors_list_, *it = pending_actors_list_.next; it != end; it = it->next) {
-  //cnt++;
-  //auto actor_info = ActorInfo::from_list_node(it);
-  //LOG(ERROR) << *actor_info;
-  //CHECK(actor_info->mailbox_.empty());
-  //CHECK(!actor_info->is_running());
-  //}
-  //for (ListNode *end = &ready_actors_list_, *it = ready_actors_list_.next; it != end; it = it->next) {
-  //auto actor_info = ActorInfo::from_list_node(it);
-  //LOG(ERROR) << *actor_info;
-  //cnt++;
-  //}
-  //LOG_CHECK(cnt == actor_count_) << cnt << " vs " << actor_count_;
-}
-
-Timestamp Scheduler::run_timeout() {
-  double now = Time::now();
-  //TODO: use Timestamp().is_in_past()
-  while (!timeout_queue_.empty() && timeout_queue_.top_key() < now) {
-    HeapNode *node = timeout_queue_.pop();
-    ActorInfo *actor_info = ActorInfo::from_heap_node(node);
-    send_immediately(actor_info->actor_id(), Event::timeout());
-  }
-  return get_timeout();
-}
-
-Timestamp Scheduler::run_events(Timestamp timeout) {
-  Timestamp res;
-  VLOG(actor) << "Run events " << sched_id_ << " " << tag("pending", pending_events_.size())
-              << tag("actors", actor_count_);
-  do {
-    run_mailbox();
-    res = run_timeout();
-  } while (!ready_actors_list_.empty() && !timeout.is_in_past());
-  return res;
-}
-
-void Scheduler::run_no_guard(Timestamp timeout) {
-  CHECK(has_guard_);
-  SCOPE_EXIT {
-    yield_flag_ = false;
-  };
-
-  timeout.relax(run_events(timeout));
-  if (yield_flag_) {
-    return;
-  }
-  run_poll(timeout);
-  run_events(timeout);
-}
-
-Timestamp Scheduler::get_timeout() {
-  if (!ready_actors_list_.empty()) {
-    return Timestamp::in(0);
-  }
-  if (timeout_queue_.empty()) {
-    return Timestamp::in(10000);
-  }
-  return Timestamp::at(timeout_queue_.top_key());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/td/actor/impl/Scheduler.h b/third-party/td/td/tdactor/td/actor/impl/Scheduler.h
deleted file mode 100644
index 8a23ca03da..0000000000
--- a/third-party/td/td/tdactor/td/actor/impl/Scheduler.h
+++ /dev/null
@@ -1,370 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/impl/ActorInfo-decl.h"
-#include "td/actor/impl/Scheduler-decl.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Heap.h"
-#include "td/utils/logging.h"
-#include "td/utils/ObjectPool.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Time.h"
-
-#include <atomic>
-#include <tuple>
-#include <utility>
-
-namespace td {
-
-/*** EventGuard ***/
-class EventGuard {
- public:
-  EventGuard(Scheduler *scheduler, ActorInfo *actor_info);
-
-  bool can_run() const {
-    return event_context_.flags == 0;
-  }
-
-  EventGuard(const EventGuard &) = delete;
-  EventGuard &operator=(const EventGuard &) = delete;
-  EventGuard(EventGuard &&) = delete;
-  EventGuard &operator=(EventGuard &&) = delete;
-  ~EventGuard();
-
- private:
-  Scheduler::EventContext event_context_;
-  Scheduler::EventContext *event_context_ptr_;
-  Scheduler *scheduler_;
-  ActorContext *save_context_;
-  const char *save_log_tag2_;
-
-  void swap_context(ActorInfo *info);
-};
-
-/*** Scheduler ***/
-inline SchedulerGuard Scheduler::get_guard() {
-  return SchedulerGuard(this);
-}
-
-inline SchedulerGuard Scheduler::get_const_guard() {
-  return SchedulerGuard(this, false);
-}
-
-inline int32 Scheduler::sched_id() const {
-  return sched_id_;
-}
-
-inline int32 Scheduler::sched_count() const {
-  return sched_n_;
-}
-
-template <class ActorT, class... Args>
-ActorOwn<ActorT> Scheduler::create_actor(Slice name, Args &&...args) {
-  return register_actor_impl(name, new ActorT(std::forward<Args>(args)...), Actor::Deleter::Destroy, sched_id_);
-}
-
-template <class ActorT, class... Args>
-ActorOwn<ActorT> Scheduler::create_actor_on_scheduler(Slice name, int32 sched_id, Args &&...args) {
-  return register_actor_impl(name, new ActorT(std::forward<Args>(args)...), Actor::Deleter::Destroy, sched_id);
-}
-
-template <class ActorT>
-ActorOwn<ActorT> Scheduler::register_actor(Slice name, ActorT *actor_ptr, int32 sched_id) {
-  return register_actor_impl(name, actor_ptr, Actor::Deleter::None, sched_id);
-}
-
-template <class ActorT>
-ActorOwn<ActorT> Scheduler::register_actor(Slice name, unique_ptr<ActorT> actor_ptr, int32 sched_id) {
-  return register_actor_impl(name, actor_ptr.release(), Actor::Deleter::Destroy, sched_id);
-}
-
-template <class ActorT>
-ActorOwn<ActorT> Scheduler::register_actor_impl(Slice name, ActorT *actor_ptr, Actor::Deleter deleter, int32 sched_id) {
-  CHECK(has_guard_);
-  if (sched_id == -1) {
-    sched_id = sched_id_;
-  }
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-  sched_id = 0;
-#endif
-  LOG_CHECK(sched_id == sched_id_ || (0 <= sched_id && sched_id < static_cast<int32>(outbound_queues_.size())))
-      << sched_id;
-  auto info = actor_info_pool_->create_empty();
-  actor_count_++;
-  auto weak_info = info.get_weak();
-  auto actor_info = info.get();
-  actor_info->init(sched_id_, name, std::move(info), static_cast<Actor *>(actor_ptr), deleter,
-                   ActorTraits<ActorT>::need_context, ActorTraits<ActorT>::need_start_up);
-  VLOG(actor) << "Create actor " << *actor_info << " (actor_count = " << actor_count_ << ')';
-
-  ActorId<ActorT> actor_id = weak_info->actor_id(actor_ptr);
-  if (sched_id != sched_id_) {
-    send_later(actor_id, Event::start());
-    do_migrate_actor(actor_info, sched_id);
-  } else {
-    pending_actors_list_.put(weak_info->get_list_node());
-    if (ActorTraits<ActorT>::need_start_up) {
-      send_later(actor_id, Event::start());
-    }
-  }
-
-  return ActorOwn<ActorT>(actor_id);
-}
-
-template <class ActorT>
-ActorOwn<ActorT> Scheduler::register_existing_actor(unique_ptr<ActorT> actor_ptr) {
-  CHECK(!actor_ptr->empty());
-  auto actor_info = actor_ptr->get_info();
-  CHECK(actor_info->migrate_dest_flag_atomic().first == sched_id_);
-  return actor_info->transfer_ownership_to_scheduler(std::move(actor_ptr));
-}
-
-inline void Scheduler::destroy_actor(ActorInfo *actor_info) {
-  VLOG(actor) << "Destroy actor " << *actor_info << " (actor_count = " << actor_count_ << ')';
-
-  LOG_CHECK(actor_info->migrate_dest() == sched_id_) << actor_info->migrate_dest() << " " << sched_id_;
-  cancel_actor_timeout(actor_info);
-  actor_info->get_list_node()->remove();
-  // called by ObjectPool
-  // actor_info->clear();
-  actor_count_--;
-  CHECK(actor_count_ >= 0);
-}
-
-inline void Scheduler::send_to_scheduler(int32 sched_id, const ActorId<Actor> &actor_id, Event &&event) {
-  if (sched_id == sched_id_) {
-    ActorInfo *actor_info = actor_id.get_actor_info();
-    pending_events_[actor_info].push_back(std::move(event));
-  } else {
-    send_to_other_scheduler(sched_id, actor_id, std::move(event));
-  }
-}
-
-template <class T>
-void Scheduler::destroy_on_scheduler(int32 sched_id, T &value) {
-  if (!value.empty()) {
-    destroy_on_scheduler_impl(sched_id, PromiseCreator::lambda([value = std::move(value)](Unit) {
-                                // destroy value
-                              }));
-  }
-}
-
-template <class T>
-void Scheduler::destroy_on_scheduler_unique_ptr(int32 sched_id, T &value) {
-  if (value != nullptr) {
-    destroy_on_scheduler_impl(sched_id, PromiseCreator::lambda([value = std::move(value)](Unit) {
-                                // destroy value
-                              }));
-  }
-}
-
-template <class... ArgsT>
-void Scheduler::destroy_on_scheduler(int32 sched_id, ArgsT &...values) {
-  destroy_on_scheduler_impl(sched_id, PromiseCreator::lambda([values = std::make_tuple(std::move(values)...)](Unit) {
-                              // destroy values
-                            }));
-}
-
-inline void Scheduler::before_tail_send(const ActorId<> &actor_id) {
-  // TODO
-}
-
-template <class RunFuncT, class EventFuncT>
-void Scheduler::send_immediately_impl(const ActorId<> &actor_id, const RunFuncT &run_func,
-                                      const EventFuncT &event_func) {
-  ActorInfo *actor_info = actor_id.get_actor_info();
-  if (unlikely(actor_info == nullptr || close_flag_)) {
-    return;
-  }
-
-  int32 actor_sched_id;
-  bool on_current_sched;
-  bool can_send_immediately;
-  get_actor_sched_id_to_send_immediately(actor_info, actor_sched_id, on_current_sched, can_send_immediately);
-
-  if (likely(can_send_immediately)) {  // run immediately
-    EventGuard guard(this, actor_info);
-    run_func(actor_info);
-  } else {
-    if (on_current_sched) {
-      add_to_mailbox(actor_info, event_func());
-    } else {
-      send_to_scheduler(actor_sched_id, actor_id, event_func());
-    }
-  }
-}
-
-template <class EventT>
-void Scheduler::send_lambda_immediately(ActorRef actor_ref, EventT &&func) {
-  return send_immediately_impl(
-      actor_ref.get(),
-      [&](ActorInfo *actor_info) {
-        event_context_ptr_->link_token = actor_ref.token();
-        func();
-      },
-      [&] {
-        auto event = Event::from_lambda(std::forward<EventT>(func));
-        event.set_link_token(actor_ref.token());
-        return event;
-      });
-}
-
-template <class EventT>
-void Scheduler::send_lambda_later(ActorRef actor_ref, EventT &&func) {
-  auto event = Event::from_lambda(std::forward<EventT>(func));
-  event.set_link_token(actor_ref.token());
-  return send_later_impl(actor_ref.get(), std::move(event));
-}
-
-template <class EventT>
-void Scheduler::send_closure_immediately(ActorRef actor_ref, EventT &&closure) {
-  return send_immediately_impl(
-      actor_ref.get(),
-      [&](ActorInfo *actor_info) {
-        event_context_ptr_->link_token = actor_ref.token();
-        closure.run(static_cast<typename EventT::ActorType *>(actor_info->get_actor_unsafe()));
-      },
-      [&] {
-        auto event = Event::immediate_closure(std::forward<EventT>(closure));
-        event.set_link_token(actor_ref.token());
-        return event;
-      });
-}
-
-template <class EventT>
-void Scheduler::send_closure_later(ActorRef actor_ref, EventT &&closure) {
-  auto event = Event::immediate_closure(std::forward<EventT>(closure));
-  event.set_link_token(actor_ref.token());
-  return send_later_impl(actor_ref.get(), std::move(event));
-}
-
-inline void Scheduler::send_immediately(ActorRef actor_ref, Event &&event) {
-  event.set_link_token(actor_ref.token());
-  return send_immediately_impl(
-      actor_ref.get(), [&](ActorInfo *actor_info) { do_event(actor_info, std::move(event)); },
-      [&] { return std::move(event); });
-}
-
-inline void Scheduler::send_later(ActorRef actor_ref, Event &&event) {
-  event.set_link_token(actor_ref.token());
-  return send_later_impl(actor_ref.get(), std::move(event));
-}
-
-inline void Scheduler::subscribe(PollableFd fd, PollFlags flags) {
-  instance()->poll_.subscribe(std::move(fd), flags);
-}
-
-inline void Scheduler::unsubscribe(PollableFdRef fd) {
-  instance()->poll_.unsubscribe(std::move(fd));
-}
-
-inline void Scheduler::unsubscribe_before_close(PollableFdRef fd) {
-  instance()->poll_.unsubscribe_before_close(std::move(fd));
-}
-
-inline void Scheduler::yield_actor(Actor *actor) {
-  yield_actor(actor->get_info());
-}
-inline void Scheduler::yield_actor(ActorInfo *actor_info) {
-  send_later(actor_info->actor_id(), Event::yield());
-}
-
-inline void Scheduler::stop_actor(Actor *actor) {
-  stop_actor(actor->get_info());
-}
-inline void Scheduler::stop_actor(ActorInfo *actor_info) {
-  CHECK(event_context_ptr_->actor_info == actor_info);
-  event_context_ptr_->flags |= EventContext::Stop;
-}
-
-inline uint64 Scheduler::get_link_token(Actor *actor) {
-  return get_link_token(actor->get_info());
-}
-inline uint64 Scheduler::get_link_token(ActorInfo *actor_info) {
-  LOG_CHECK(event_context_ptr_->actor_info == actor_info) << actor_info->get_name();
-  return event_context_ptr_->link_token;
-}
-
-inline void Scheduler::finish_migrate_actor(Actor *actor) {
-  register_migrated_actor(actor->get_info());
-}
-
-inline double Scheduler::get_actor_timeout(const Actor *actor) const {
-  return get_actor_timeout(actor->get_info());
-}
-inline void Scheduler::set_actor_timeout_in(Actor *actor, double timeout) {
-  set_actor_timeout_in(actor->get_info(), timeout);
-}
-inline void Scheduler::set_actor_timeout_at(Actor *actor, double timeout_at) {
-  set_actor_timeout_at(actor->get_info(), timeout_at);
-}
-inline void Scheduler::cancel_actor_timeout(Actor *actor) {
-  cancel_actor_timeout(actor->get_info());
-}
-
-inline void Scheduler::cancel_actor_timeout(ActorInfo *actor_info) {
-  HeapNode *heap_node = actor_info->get_heap_node();
-  if (heap_node->in_heap()) {
-    timeout_queue_.erase(heap_node);
-  }
-}
-
-inline void Scheduler::finish() {
-  if (callback_) {
-    callback_->on_finish();
-  }
-  yield();
-}
-
-inline void Scheduler::yield() {
-  yield_flag_ = true;
-}
-
-inline void Scheduler::wakeup() {
-  std::atomic_thread_fence(std::memory_order_release);
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-  inbound_queue_->writer_put({});
-#endif
-}
-
-inline void Scheduler::run(Timestamp timeout) {
-  auto guard = get_guard();
-  run_no_guard(timeout);
-}
-
-/*** Interface to current scheduler ***/
-template <class ActorT, class... Args>
-ActorOwn<ActorT> create_actor(Slice name, Args &&...args) {
-  return Scheduler::instance()->create_actor<ActorT>(name, std::forward<Args>(args)...);
-}
-
-template <class ActorT, class... Args>
-ActorOwn<ActorT> create_actor_on_scheduler(Slice name, int32 sched_id, Args &&...args) {
-  return Scheduler::instance()->create_actor_on_scheduler<ActorT>(name, sched_id, std::forward<Args>(args)...);
-}
-
-template <class ActorT>
-ActorOwn<ActorT> register_actor(Slice name, ActorT *actor_ptr, int32 sched_id) {
-  return Scheduler::instance()->register_actor<ActorT>(name, actor_ptr, sched_id);
-}
-
-template <class ActorT>
-ActorOwn<ActorT> register_actor(Slice name, unique_ptr<ActorT> actor_ptr, int32 sched_id) {
-  return Scheduler::instance()->register_actor<ActorT>(name, std::move(actor_ptr), sched_id);
-}
-
-template <class ActorT>
-ActorOwn<ActorT> register_existing_actor(unique_ptr<ActorT> actor_ptr) {
-  return Scheduler::instance()->register_existing_actor(std::move(actor_ptr));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdactor/test/actors_bugs.cpp b/third-party/td/td/tdactor/test/actors_bugs.cpp
deleted file mode 100644
index 9f41c9ccfa..0000000000
--- a/third-party/td/td/tdactor/test/actors_bugs.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-#include "td/actor/MultiTimeout.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-
-TEST(MultiTimeout, bug) {
-  td::ConcurrentScheduler sched(0, 0);
-
-  sched.start();
-  td::unique_ptr<td::MultiTimeout> multi_timeout;
-  struct Data {
-    td::MultiTimeout *multi_timeout;
-  };
-  Data data;
-
-  {
-    auto guard = sched.get_main_guard();
-    multi_timeout = td::make_unique<td::MultiTimeout>("MultiTimeout");
-    data.multi_timeout = multi_timeout.get();
-    multi_timeout->set_callback([](void *void_data, td::int64 key) {
-      auto &data = *static_cast<Data *>(void_data);
-      if (key == 1) {
-        data.multi_timeout->cancel_timeout(key + 1);
-        data.multi_timeout->set_timeout_in(key + 2, 1);
-      } else {
-        td::Scheduler::instance()->finish();
-      }
-    });
-    multi_timeout->set_callback_data(&data);
-    multi_timeout->set_timeout_in(1, 1);
-    multi_timeout->set_timeout_in(2, 2);
-  }
-
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
-
-class TimeoutManager final : public td::Actor {
-  static td::int32 count;
-
- public:
-  TimeoutManager() {
-    count++;
-
-    test_timeout_.set_callback(on_test_timeout_callback);
-    test_timeout_.set_callback_data(static_cast<void *>(this));
-  }
-  TimeoutManager(const TimeoutManager &) = delete;
-  TimeoutManager &operator=(const TimeoutManager &) = delete;
-  TimeoutManager(TimeoutManager &&) = delete;
-  TimeoutManager &operator=(TimeoutManager &&) = delete;
-  ~TimeoutManager() final {
-    count--;
-    LOG(INFO) << "Destroy TimeoutManager";
-  }
-
-  static void on_test_timeout_callback(void *timeout_manager_ptr, td::int64 id) {
-    CHECK(count >= 0);
-    if (count == 0) {
-      LOG(ERROR) << "Receive timeout after manager was closed";
-      return;
-    }
-
-    auto manager = static_cast<TimeoutManager *>(timeout_manager_ptr);
-    send_closure_later(manager->actor_id(manager), &TimeoutManager::test_timeout);
-  }
-
-  void test_timeout() {
-    CHECK(count > 0);
-    // we must yield scheduler, so run_main breaks immediately, if timeouts are handled immediately
-    td::Scheduler::instance()->yield();
-  }
-
-  td::MultiTimeout test_timeout_{"TestTimeout"};
-};
-
-td::int32 TimeoutManager::count;
-
-TEST(MultiTimeout, Destroy) {
-  td::ConcurrentScheduler sched(0, 0);
-
-  auto timeout_manager = sched.create_actor_unsafe<TimeoutManager>(0, "TimeoutManager");
-  TimeoutManager *manager = timeout_manager.get().get_actor_unsafe();
-  sched.start();
-  int cnt = 100;
-  while (sched.run_main(cnt == 100 || cnt <= 0 ? 0.001 : 10)) {
-    auto guard = sched.get_main_guard();
-    cnt--;
-    if (cnt > 0) {
-      for (int i = 0; i < 2; i++) {
-        manager->test_timeout_.set_timeout_in(td::Random::fast(0, 1000000000), td::Random::fast(2, 5) / 1000.0);
-      }
-    } else if (cnt == 0) {
-      timeout_manager.reset();
-    } else if (cnt == -10) {
-      td::Scheduler::instance()->finish();
-    }
-  }
-  sched.finish();
-}
diff --git a/third-party/td/td/tdactor/test/actors_main.cpp b/third-party/td/td/tdactor/test/actors_main.cpp
deleted file mode 100644
index 501c27ec96..0000000000
--- a/third-party/td/td/tdactor/test/actors_main.cpp
+++ /dev/null
@@ -1,506 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/tests.h"
-
-#include <limits>
-#include <map>
-#include <memory>
-#include <utility>
-
-template <class ContainerT>
-static typename ContainerT::value_type &rand_elem(ContainerT &cont) {
-  CHECK(0 < cont.size() && cont.size() <= static_cast<size_t>(std::numeric_limits<int>::max()));
-  return cont[td::Random::fast(0, static_cast<int>(cont.size()) - 1)];
-}
-
-static td::uint32 fast_pow_mod_uint32(td::uint32 x, td::uint32 p) {
-  td::uint32 res = 1;
-  while (p) {
-    if (p & 1) {
-      res *= x;
-    }
-    x *= x;
-    p >>= 1;
-  }
-  return res;
-}
-
-static td::uint32 slow_pow_mod_uint32(td::uint32 x, td::uint32 p) {
-  td::uint32 res = 1;
-  for (td::uint32 i = 0; i < p; i++) {
-    res *= x;
-  }
-  return res;
-}
-
-struct ActorQuery {
-  td::uint32 query_id{};
-  td::uint32 result{};
-  td::vector<int> todo;
-  ActorQuery() = default;
-  ActorQuery(const ActorQuery &) = delete;
-  ActorQuery &operator=(const ActorQuery &) = delete;
-  ActorQuery(ActorQuery &&) = default;
-  ActorQuery &operator=(ActorQuery &&) = default;
-  ~ActorQuery() {
-    LOG_CHECK(todo.empty()) << "ActorQuery lost";
-  }
-  int next_pow() {
-    CHECK(!todo.empty());
-    int res = todo.back();
-    todo.pop_back();
-    return res;
-  }
-  bool ready() {
-    return todo.empty();
-  }
-};
-
-static td::uint32 fast_calc(ActorQuery &q) {
-  td::uint32 result = q.result;
-  for (auto x : q.todo) {
-    result = fast_pow_mod_uint32(result, x);
-  }
-  return result;
-}
-
-class Worker final : public td::Actor {
- public:
-  explicit Worker(int threads_n) : threads_n_(threads_n) {
-  }
-  void query(td::PromiseActor<td::uint32> &&promise, td::uint32 x, td::uint32 p) {
-    td::uint32 result = slow_pow_mod_uint32(x, p);
-    promise.set_value(std::move(result));
-
-    (void)threads_n_;
-    // if (threads_n_ > 1 && td::Random::fast(0, 9) == 0) {
-    // migrate(td::Random::fast(2, threads_n));
-    //}
-  }
-
- private:
-  int threads_n_;
-};
-
-class QueryActor final : public td::Actor {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    Callback(Callback &&) = delete;
-    Callback &operator=(Callback &&) = delete;
-    virtual ~Callback() = default;
-    virtual void on_result(ActorQuery &&query) = 0;
-    virtual void on_closed() = 0;
-  };
-
-  explicit QueryActor(int threads_n) : threads_n_(threads_n) {
-  }
-
-  void set_callback(td::unique_ptr<Callback> callback) {
-    callback_ = std::move(callback);
-  }
-  void set_workers(td::vector<td::ActorId<Worker>> workers) {
-    workers_ = std::move(workers);
-  }
-
-  void query(ActorQuery &&query) {
-    td::uint32 x = query.result;
-    td::uint32 p = query.next_pow();
-    if (td::Random::fast(0, 3) && (p <= 1000 || workers_.empty())) {
-      query.result = slow_pow_mod_uint32(x, p);
-      callback_->on_result(std::move(query));
-    } else {
-      auto future = td::Random::fast(0, 3) == 0
-                        ? td::send_promise_immediately(rand_elem(workers_), &Worker::query, x, p)
-                        : td::send_promise_later(rand_elem(workers_), &Worker::query, x, p);
-      if (future.is_ready()) {
-        query.result = future.move_as_ok();
-        callback_->on_result(std::move(query));
-      } else {
-        future.set_event(td::EventCreator::raw(actor_id(), query.query_id));
-        auto query_id = query.query_id;
-        pending_.emplace(query_id, std::make_pair(std::move(future), std::move(query)));
-      }
-    }
-    if (threads_n_ > 1 && td::Random::fast(0, 9) == 0) {
-      migrate(td::Random::fast(2, threads_n_));
-    }
-  }
-
-  void raw_event(const td::Event::Raw &event) final {
-    td::uint32 id = event.u32;
-    auto it = pending_.find(id);
-    auto future = std::move(it->second.first);
-    auto query = std::move(it->second.second);
-    pending_.erase(it);
-    CHECK(future.is_ready());
-    query.result = future.move_as_ok();
-    callback_->on_result(std::move(query));
-  }
-
-  void close() {
-    callback_->on_closed();
-    stop();
-  }
-
-  void on_start_migrate(td::int32 sched_id) final {
-    for (auto &it : pending_) {
-      start_migrate(it.second.first, sched_id);
-    }
-  }
-  void on_finish_migrate() final {
-    for (auto &it : pending_) {
-      finish_migrate(it.second.first);
-    }
-  }
-
- private:
-  td::unique_ptr<Callback> callback_;
-  std::map<td::uint32, std::pair<td::FutureActor<td::uint32>, ActorQuery>> pending_;
-  td::vector<td::ActorId<Worker>> workers_;
-  int threads_n_;
-};
-
-class MainQueryActor final : public td::Actor {
-  class QueryActorCallback final : public QueryActor::Callback {
-   public:
-    void on_result(ActorQuery &&query) final {
-      if (query.ready()) {
-        send_closure(parent_id_, &MainQueryActor::on_result, std::move(query));
-      } else {
-        send_closure(next_solver_, &QueryActor::query, std::move(query));
-      }
-    }
-    void on_closed() final {
-      send_closure(parent_id_, &MainQueryActor::on_closed);
-    }
-    QueryActorCallback(td::ActorId<MainQueryActor> parent_id, td::ActorId<QueryActor> next_solver)
-        : parent_id_(parent_id), next_solver_(next_solver) {
-    }
-
-   private:
-    td::ActorId<MainQueryActor> parent_id_;
-    td::ActorId<QueryActor> next_solver_;
-  };
-
-  const int ACTORS_CNT = 10;
-  const int WORKERS_CNT = 4;
-
- public:
-  explicit MainQueryActor(int threads_n) : threads_n_(threads_n) {
-  }
-
-  void start_up() final {
-    actors_.resize(ACTORS_CNT);
-    for (auto &actor : actors_) {
-      auto actor_ptr = td::make_unique<QueryActor>(threads_n_);
-      actor = register_actor("QueryActor", std::move(actor_ptr), threads_n_ > 1 ? td::Random::fast(2, threads_n_) : 0)
-                  .release();
-    }
-
-    workers_.resize(WORKERS_CNT);
-    for (auto &worker : workers_) {
-      auto actor_ptr = td::make_unique<Worker>(threads_n_);
-      worker = register_actor("Worker", std::move(actor_ptr), threads_n_ > 1 ? td::Random::fast(2, threads_n_) : 0)
-                   .release();
-    }
-
-    for (int i = 0; i < ACTORS_CNT; i++) {
-      ref_cnt_++;
-      send_closure(actors_[i], &QueryActor::set_callback,
-                   td::make_unique<QueryActorCallback>(actor_id(this), actors_[(i + 1) % ACTORS_CNT]));
-      send_closure(actors_[i], &QueryActor::set_workers, workers_);
-    }
-    yield();
-  }
-
-  void on_result(ActorQuery &&query) {
-    CHECK(query.ready());
-    CHECK(query.result == expected_[query.query_id]);
-    in_cnt_++;
-    wakeup();
-  }
-
-  ActorQuery create_query() {
-    ActorQuery q;
-    q.query_id = (query_id_ += 2);
-    q.result = q.query_id;
-    q.todo = {1, 1, 1, 1, 1, 1, 1, 1, 10000};
-    expected_[q.query_id] = fast_calc(q);
-    return q;
-  }
-
-  void on_closed() {
-    ref_cnt_--;
-    if (ref_cnt_ == 0) {
-      td::Scheduler::instance()->finish();
-    }
-  }
-
-  void wakeup() final {
-    int cnt = 10000;
-    while (out_cnt_ < in_cnt_ + 100 && out_cnt_ < cnt) {
-      if (td::Random::fast_bool()) {
-        send_closure(rand_elem(actors_), &QueryActor::query, create_query());
-      } else {
-        send_closure_later(rand_elem(actors_), &QueryActor::query, create_query());
-      }
-      out_cnt_++;
-    }
-    if (in_cnt_ == cnt) {
-      in_cnt_++;
-      ref_cnt_--;
-      for (auto &actor : actors_) {
-        send_closure(actor, &QueryActor::close);
-      }
-    }
-  }
-
- private:
-  std::map<td::uint32, td::uint32> expected_;
-  td::vector<td::ActorId<QueryActor>> actors_;
-  td::vector<td::ActorId<Worker>> workers_;
-  int out_cnt_ = 0;
-  int in_cnt_ = 0;
-  int query_id_ = 1;
-  int ref_cnt_ = 1;
-  int threads_n_;
-};
-
-class SimpleActor final : public td::Actor {
- public:
-  explicit SimpleActor(td::int32 threads_n) : threads_n_(threads_n) {
-  }
-  void start_up() final {
-    auto actor_ptr = td::make_unique<Worker>(threads_n_);
-    worker_ =
-        register_actor("Worker", std::move(actor_ptr), threads_n_ > 1 ? td::Random::fast(2, threads_n_) : 0).release();
-    yield();
-  }
-
-  void wakeup() final {
-    if (q_ == 10000) {
-      td::Scheduler::instance()->finish();
-      stop();
-      return;
-    }
-    q_++;
-    p_ = td::Random::fast_bool() ? 1 : 10000;
-    auto future = td::Random::fast(0, 3) == 0 ? td::send_promise_immediately(worker_, &Worker::query, q_, p_)
-                                              : td::send_promise_later(worker_, &Worker::query, q_, p_);
-    if (future.is_ready()) {
-      auto result = future.move_as_ok();
-      CHECK(result == fast_pow_mod_uint32(q_, p_));
-      yield();
-    } else {
-      future.set_event(td::EventCreator::raw(actor_id(), nullptr));
-      future_ = std::move(future);
-    }
-    // if (threads_n_ > 1 && td::Random::fast(0, 2) == 0) {
-    // migrate(td::Random::fast(1, threads_n));
-    //}
-  }
-  void raw_event(const td::Event::Raw &event) final {
-    auto result = future_.move_as_ok();
-    CHECK(result == fast_pow_mod_uint32(q_, p_));
-    yield();
-  }
-
-  void on_start_migrate(td::int32 sched_id) final {
-    start_migrate(future_, sched_id);
-  }
-  void on_finish_migrate() final {
-    finish_migrate(future_);
-  }
-
- private:
-  td::int32 threads_n_;
-  td::ActorId<Worker> worker_;
-  td::FutureActor<td::uint32> future_;
-  td::uint32 q_ = 1;
-  td::uint32 p_ = 0;
-};
-
-class SendToDead final : public td::Actor {
- public:
-  class Parent final : public td::Actor {
-   public:
-    explicit Parent(td::ActorShared<> parent, int ttl = 3) : parent_(std::move(parent)), ttl_(ttl) {
-    }
-    void start_up() final {
-      set_timeout_in(td::Random::fast_uint32() % 3 * 0.001);
-      if (ttl_ != 0) {
-        child_ = td::create_actor_on_scheduler<Parent>(
-            "Child", td::Random::fast_uint32() % td::Scheduler::instance()->sched_count(), actor_shared(this),
-            ttl_ - 1);
-      }
-    }
-    void timeout_expired() final {
-      stop();
-    }
-
-   private:
-    td::ActorOwn<Parent> child_;
-    td::ActorShared<> parent_;
-    int ttl_;
-  };
-
-  void start_up() final {
-    for (int i = 0; i < 2000; i++) {
-      td::create_actor_on_scheduler<Parent>(
-          "Parent", td::Random::fast_uint32() % td::Scheduler::instance()->sched_count(), create_reference(), 4)
-          .release();
-    }
-  }
-
-  td::ActorShared<> create_reference() {
-    ref_cnt_++;
-    return actor_shared(this);
-  }
-
-  void hangup_shared() final {
-    ref_cnt_--;
-    if (ref_cnt_ == 0) {
-      ttl_--;
-      if (ttl_ <= 0) {
-        td::Scheduler::instance()->finish();
-        stop();
-      } else {
-        start_up();
-      }
-    }
-  }
-
-  td::uint32 ttl_{50};
-  td::uint32 ref_cnt_{0};
-};
-
-TEST(Actors, send_to_dead) {
-  //TODO: fix CHECK(storage_count_.load() == 0)
-  return;
-  int threads_n = 5;
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  sched.create_actor_unsafe<SendToDead>(0, "SendToDead").release();
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
-
-TEST(Actors, main_simple) {
-  int threads_n = 3;
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  sched.create_actor_unsafe<SimpleActor>(threads_n > 1 ? 1 : 0, "simple", threads_n).release();
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
-
-TEST(Actors, main) {
-  int threads_n = 9;
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  sched.create_actor_unsafe<MainQueryActor>(threads_n > 1 ? 1 : 0, "MainQuery", threads_n).release();
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
-
-class DoAfterStop final : public td::Actor {
- public:
-  void loop() final {
-    ptr = td::make_unique<int>(10);
-    stop();
-    CHECK(*ptr == 10);
-    td::Scheduler::instance()->finish();
-  }
-
- private:
-  td::unique_ptr<int> ptr;
-};
-
-TEST(Actors, do_after_stop) {
-  int threads_n = 0;
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  sched.create_actor_unsafe<DoAfterStop>(0, "DoAfterStop").release();
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
-
-class XContext final : public td::ActorContext {
- public:
-  td::int32 get_id() const final {
-    return 123456789;
-  }
-
-  void validate() {
-    CHECK(x == 1234);
-  }
-  ~XContext() final {
-    x = 0;
-  }
-  int x = 1234;
-};
-
-class WithXContext final : public td::Actor {
- public:
-  void start_up() final {
-    auto old_context = set_context(std::make_shared<XContext>());
-  }
-  void f(td::unique_ptr<td::Guard> guard) {
-  }
-  void close() {
-    stop();
-  }
-};
-
-static void check_context() {
-  auto ptr = static_cast<XContext *>(td::Scheduler::context());
-  CHECK(ptr != nullptr);
-  ptr->validate();
-}
-
-TEST(Actors, context_during_destruction) {
-  int threads_n = 0;
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  {
-    auto guard = sched.get_main_guard();
-    auto with_context = td::create_actor<WithXContext>("WithXContext").release();
-    send_closure(with_context, &WithXContext::f, td::create_lambda_guard([] { check_context(); }));
-    send_closure_later(with_context, &WithXContext::close);
-    send_closure(with_context, &WithXContext::f, td::create_lambda_guard([] { check_context(); }));
-    send_closure(with_context, &WithXContext::f, td::create_lambda_guard([] { td::Scheduler::instance()->finish(); }));
-  }
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
diff --git a/third-party/td/td/tdactor/test/actors_simple.cpp b/third-party/td/td/tdactor/test/actors_simple.cpp
deleted file mode 100644
index 0fb8a55dad..0000000000
--- a/third-party/td/td/tdactor/test/actors_simple.cpp
+++ /dev/null
@@ -1,682 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-#include "td/actor/MultiPromise.h"
-#include "td/actor/PromiseFuture.h"
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/MpscPollableQueue.h"
-#include "td/utils/Observer.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/Time.h"
-
-#include <memory>
-#include <tuple>
-
-static const size_t BUF_SIZE = 1024 * 1024;
-static char buf[BUF_SIZE];
-static char buf2[BUF_SIZE];
-static td::StringBuilder sb(td::MutableSlice(buf, BUF_SIZE - 1));
-static td::StringBuilder sb2(td::MutableSlice(buf2, BUF_SIZE - 1));
-
-static td::vector<std::shared_ptr<td::MpscPollableQueue<td::EventFull>>> create_queues() {
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-  return {};
-#else
-  auto res = std::make_shared<td::MpscPollableQueue<td::EventFull>>();
-  res->init();
-  return {res};
-#endif
-}
-
-TEST(Actors, SendLater) {
-  sb.clear();
-  td::Scheduler scheduler;
-  scheduler.init(0, create_queues(), nullptr);
-
-  auto guard = scheduler.get_guard();
-  class Worker final : public td::Actor {
-   public:
-    void f() {
-      sb << "A";
-    }
-  };
-  auto id = td::create_actor<Worker>("Worker");
-  scheduler.run_no_guard(td::Timestamp::in(1));
-  td::send_closure(id, &Worker::f);
-  td::send_closure_later(id, &Worker::f);
-  td::send_closure(id, &Worker::f);
-  ASSERT_STREQ("A", sb.as_cslice().c_str());
-  scheduler.run_no_guard(td::Timestamp::in(1));
-  ASSERT_STREQ("AAA", sb.as_cslice().c_str());
-}
-
-class X {
- public:
-  X() {
-    sb << "[cnstr_default]";
-  }
-  X(const X &) {
-    sb << "[cnstr_copy]";
-  }
-  X(X &&) noexcept {
-    sb << "[cnstr_move]";
-  }
-  X &operator=(const X &) {
-    sb << "[set_copy]";
-    return *this;
-  }
-  X &operator=(X &&) noexcept {
-    sb << "[set_move]";
-    return *this;
-  }
-  ~X() = default;
-};
-
-class XReceiver final : public td::Actor {
- public:
-  void by_const_ref(const X &) {
-    sb << "[by_const_ref]";
-  }
-  void by_lvalue_ref(const X &) {
-    sb << "[by_lvalue_ref]";
-  }
-  void by_value(X) {
-    sb << "[by_value]";
-  }
-};
-
-TEST(Actors, simple_pass_event_arguments) {
-  td::Scheduler scheduler;
-  scheduler.init(0, create_queues(), nullptr);
-
-  auto guard = scheduler.get_guard();
-  auto id = td::create_actor<XReceiver>("XR").release();
-  scheduler.run_no_guard(td::Timestamp::in(1));
-
-  X x;
-
-  // check tuple
-  // std::tuple<X> tx;
-  // sb.clear();
-  // std::tuple<X> ty(std::move(tx));
-  // tx = std::move(ty);
-  // ASSERT_STREQ("[cnstr_move]", sb.as_cslice().c_str());
-
-  // Send temporary object
-
-  // Tmp-->ConstRef
-  sb.clear();
-  td::send_closure(id, &XReceiver::by_const_ref, X());
-  ASSERT_STREQ("[cnstr_default][by_const_ref]", sb.as_cslice().c_str());
-
-  // Tmp-->ConstRef (Delayed)
-  sb.clear();
-  td::send_closure_later(id, &XReceiver::by_const_ref, X());
-  scheduler.run_no_guard(td::Timestamp::in(1));
-  // LOG(ERROR) << sb.as_cslice();
-  ASSERT_STREQ("[cnstr_default][cnstr_move][by_const_ref]", sb.as_cslice().c_str());
-
-  // Tmp-->LvalueRef
-  sb.clear();
-  td::send_closure(id, &XReceiver::by_lvalue_ref, X());
-  ASSERT_STREQ("[cnstr_default][by_lvalue_ref]", sb.as_cslice().c_str());
-
-  // Tmp-->LvalueRef (Delayed)
-  sb.clear();
-  td::send_closure_later(id, &XReceiver::by_lvalue_ref, X());
-  scheduler.run_no_guard(td::Timestamp::in(1));
-  ASSERT_STREQ("[cnstr_default][cnstr_move][by_lvalue_ref]", sb.as_cslice().c_str());
-
-  // Tmp-->Value
-  sb.clear();
-  td::send_closure(id, &XReceiver::by_value, X());
-  ASSERT_STREQ("[cnstr_default][cnstr_move][by_value]", sb.as_cslice().c_str());
-
-  // Tmp-->Value (Delayed)
-  sb.clear();
-  td::send_closure_later(id, &XReceiver::by_value, X());
-  scheduler.run_no_guard(td::Timestamp::in(1));
-  ASSERT_STREQ("[cnstr_default][cnstr_move][cnstr_move][by_value]", sb.as_cslice().c_str());
-
-  // Var-->ConstRef
-  sb.clear();
-  td::send_closure(id, &XReceiver::by_const_ref, x);
-  ASSERT_STREQ("[by_const_ref]", sb.as_cslice().c_str());
-
-  // Var-->ConstRef (Delayed)
-  sb.clear();
-  td::send_closure_later(id, &XReceiver::by_const_ref, x);
-  scheduler.run_no_guard(td::Timestamp::in(1));
-  ASSERT_STREQ("[cnstr_copy][by_const_ref]", sb.as_cslice().c_str());
-
-  // Var-->LvalueRef
-  // Var-->LvalueRef (Delayed)
-  // CE or strange behaviour
-
-  // Var-->Value
-  sb.clear();
-  td::send_closure(id, &XReceiver::by_value, x);
-  ASSERT_STREQ("[cnstr_copy][by_value]", sb.as_cslice().c_str());
-
-  // Var-->Value (Delayed)
-  sb.clear();
-  td::send_closure_later(id, &XReceiver::by_value, x);
-  scheduler.run_no_guard(td::Timestamp::in(1));
-  ASSERT_STREQ("[cnstr_copy][cnstr_move][by_value]", sb.as_cslice().c_str());
-}
-
-class PrintChar final : public td::Actor {
- public:
-  PrintChar(char c, int cnt) : char_(c), cnt_(cnt) {
-  }
-  void start_up() final {
-    yield();
-  }
-  void wakeup() final {
-    if (cnt_ == 0) {
-      stop();
-    } else {
-      sb << char_;
-      cnt_--;
-      yield();
-    }
-  }
-
- private:
-  char char_;
-  int cnt_;
-};
-
-//
-// Yield must add actor to the end of queue
-//
-TEST(Actors, simple_hand_yield) {
-  td::Scheduler scheduler;
-  scheduler.init(0, create_queues(), nullptr);
-  sb.clear();
-  int cnt = 1000;
-  {
-    auto guard = scheduler.get_guard();
-    td::create_actor<PrintChar>("PrintA", 'A', cnt).release();
-    td::create_actor<PrintChar>("PrintB", 'B', cnt).release();
-    td::create_actor<PrintChar>("PrintC", 'C', cnt).release();
-  }
-  scheduler.run(td::Timestamp::in(1));
-  td::string expected;
-  for (int i = 0; i < cnt; i++) {
-    expected += "ABC";
-  }
-  ASSERT_STREQ(expected.c_str(), sb.as_cslice().c_str());
-}
-
-class Ball {
- public:
-  friend void start_migrate(Ball &ball, td::int32 sched_id) {
-    sb << "start";
-  }
-  friend void finish_migrate(Ball &ball) {
-    sb2 << "finish";
-  }
-};
-
-class Pong final : public td::Actor {
- public:
-  void pong(Ball ball) {
-    td::Scheduler::instance()->finish();
-  }
-};
-
-class Ping final : public td::Actor {
- public:
-  explicit Ping(td::ActorId<Pong> pong) : pong_(pong) {
-  }
-  void start_up() final {
-    td::send_closure(pong_, &Pong::pong, Ball());
-  }
-
- private:
-  td::ActorId<Pong> pong_;
-};
-
-TEST(Actors, simple_migrate) {
-  sb.clear();
-  sb2.clear();
-
-  td::ConcurrentScheduler scheduler(2, 0);
-  auto pong = scheduler.create_actor_unsafe<Pong>(2, "Pong").release();
-  scheduler.create_actor_unsafe<Ping>(1, "Ping", pong).release();
-  scheduler.start();
-  while (scheduler.run_main(10)) {
-  }
-  scheduler.finish();
-#if TD_THREAD_UNSUPPORTED || TD_EVENTFD_UNSUPPORTED
-  ASSERT_STREQ("", sb.as_cslice().c_str());
-  ASSERT_STREQ("", sb2.as_cslice().c_str());
-#else
-  ASSERT_STREQ("start", sb.as_cslice().c_str());
-  ASSERT_STREQ("finish", sb2.as_cslice().c_str());
-#endif
-}
-
-class OpenClose final : public td::Actor {
- public:
-  explicit OpenClose(int cnt) : cnt_(cnt) {
-  }
-  void start_up() final {
-    yield();
-  }
-  void wakeup() final {
-    auto observer = reinterpret_cast<td::ObserverBase *>(123);
-    td::CSlice file_name = "server";
-    if (cnt_ > 0) {
-      auto r_file_fd = td::FileFd::open(file_name, td::FileFd::Read | td::FileFd::Create);
-      LOG_CHECK(r_file_fd.is_ok()) << r_file_fd.error();
-      auto file_fd = r_file_fd.move_as_ok();
-      { auto pollable_fd = file_fd.get_poll_info().extract_pollable_fd(observer); }
-      file_fd.close();
-      cnt_--;
-      yield();
-    } else {
-      td::Scheduler::instance()->finish();
-    }
-  }
-
- private:
-  int cnt_;
-};
-
-TEST(Actors, open_close) {
-  td::ConcurrentScheduler scheduler(2, 0);
-  int cnt = 10000;  // TODO(perf) optimize
-  scheduler.create_actor_unsafe<OpenClose>(1, "A", cnt).release();
-  scheduler.create_actor_unsafe<OpenClose>(2, "B", cnt).release();
-  scheduler.start();
-  while (scheduler.run_main(10)) {
-  }
-  scheduler.finish();
-  td::unlink("server").ignore();
-}
-
-class MsgActor : public td::Actor {
- public:
-  virtual void msg() = 0;
-};
-
-class Slave final : public td::Actor {
- public:
-  td::ActorId<MsgActor> msg;
-  explicit Slave(td::ActorId<MsgActor> msg) : msg(msg) {
-  }
-  void hangup() final {
-    td::send_closure(msg, &MsgActor::msg);
-  }
-};
-
-class MasterActor final : public MsgActor {
- public:
-  void loop() final {
-    alive_ = true;
-    slave = td::create_actor<Slave>("Slave", static_cast<td::ActorId<MsgActor>>(actor_id(this)));
-    stop();
-  }
-  td::ActorOwn<Slave> slave;
-
-  MasterActor() = default;
-  MasterActor(const MasterActor &) = delete;
-  MasterActor &operator=(const MasterActor &) = delete;
-  MasterActor(MasterActor &&) = delete;
-  MasterActor &operator=(MasterActor &&) = delete;
-  ~MasterActor() final {
-    alive_ = 987654321;
-  }
-  void msg() final {
-    CHECK(alive_ == 123456789);
-  }
-  td::uint64 alive_ = 123456789;
-};
-
-TEST(Actors, call_after_destruct) {
-  td::Scheduler scheduler;
-  scheduler.init(0, create_queues(), nullptr);
-  {
-    auto guard = scheduler.get_guard();
-    td::create_actor<MasterActor>("Master").release();
-  }
-  scheduler.run(td::Timestamp::in(1));
-}
-
-class LinkTokenSlave final : public td::Actor {
- public:
-  explicit LinkTokenSlave(td::ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-  void add(td::uint64 link_token) {
-    CHECK(link_token == get_link_token());
-  }
-  void close() {
-    stop();
-  }
-
- private:
-  td::ActorShared<> parent_;
-};
-
-class LinkTokenMasterActor final : public td::Actor {
- public:
-  explicit LinkTokenMasterActor(int cnt) : cnt_(cnt) {
-  }
-  void start_up() final {
-    child_ = td::create_actor<LinkTokenSlave>("Slave", actor_shared(this, 123)).release();
-    yield();
-  }
-  void loop() final {
-    for (int i = 0; i < 100 && cnt_ > 0; cnt_--, i++) {
-      auto token = static_cast<td::uint64>(cnt_) + 1;
-      switch (i % 4) {
-        case 0: {
-          td::send_closure(td::ActorShared<LinkTokenSlave>(child_, token), &LinkTokenSlave::add, token);
-          break;
-        }
-        case 1: {
-          td::send_closure_later(td::ActorShared<LinkTokenSlave>(child_, token), &LinkTokenSlave::add, token);
-          break;
-        }
-        case 2: {
-          td::EventCreator::closure(td::ActorShared<LinkTokenSlave>(child_, token), &LinkTokenSlave::add, token)
-              .try_emit();
-          break;
-        }
-        case 3: {
-          td::EventCreator::closure(td::ActorShared<LinkTokenSlave>(child_, token), &LinkTokenSlave::add, token)
-              .try_emit_later();
-          break;
-        }
-      }
-    }
-    if (cnt_ == 0) {
-      td::send_closure(child_, &LinkTokenSlave::close);
-    } else {
-      yield();
-    }
-  }
-
-  void hangup_shared() final {
-    CHECK(get_link_token() == 123);
-    td::Scheduler::instance()->finish();
-    stop();
-  }
-
- private:
-  int cnt_;
-  td::ActorId<LinkTokenSlave> child_;
-};
-
-TEST(Actors, link_token) {
-  td::ConcurrentScheduler scheduler(0, 0);
-  auto cnt = 100000;
-  scheduler.create_actor_unsafe<LinkTokenMasterActor>(0, "A", cnt).release();
-  scheduler.start();
-  while (scheduler.run_main(10)) {
-  }
-  scheduler.finish();
-}
-
-TEST(Actors, promise) {
-  int value = -1;
-  td::Promise<int> p1 = td::PromiseCreator::lambda([&](int x) { value = x; });
-  p1.set_error(td::Status::Error("Test error"));
-  ASSERT_EQ(0, value);
-  td::Promise<td::int32> p2 = td::PromiseCreator::lambda([&](td::Result<td::int32> x) { value = 1; });
-  p2.set_error(td::Status::Error("Test error"));
-  ASSERT_EQ(1, value);
-}
-
-class LaterSlave final : public td::Actor {
- public:
-  explicit LaterSlave(td::ActorShared<> parent) : parent_(std::move(parent)) {
-  }
-
- private:
-  td::ActorShared<> parent_;
-
-  void hangup() final {
-    sb << "A";
-    td::send_closure(actor_id(this), &LaterSlave::finish);
-  }
-  void finish() {
-    sb << "B";
-    stop();
-  }
-};
-
-class LaterMasterActor final : public td::Actor {
-  int cnt_ = 3;
-  td::vector<td::ActorOwn<LaterSlave>> children_;
-  void start_up() final {
-    for (int i = 0; i < cnt_; i++) {
-      children_.push_back(td::create_actor<LaterSlave>("B", actor_shared(this)));
-    }
-    yield();
-  }
-  void loop() final {
-    children_.clear();
-  }
-  void hangup_shared() final {
-    if (!--cnt_) {
-      td::Scheduler::instance()->finish();
-      stop();
-    }
-  }
-};
-
-TEST(Actors, later) {
-  sb.clear();
-  td::ConcurrentScheduler scheduler(0, 0);
-  scheduler.create_actor_unsafe<LaterMasterActor>(0, "A").release();
-  scheduler.start();
-  while (scheduler.run_main(10)) {
-  }
-  scheduler.finish();
-  ASSERT_STREQ(sb.as_cslice().c_str(), "AAABBB");
-}
-
-class MultiPromise2 final : public td::Actor {
- public:
-  void start_up() final {
-    auto promise = td::PromiseCreator::lambda([](td::Result<td::Unit> result) {
-      result.ensure();
-      td::Scheduler::instance()->finish();
-    });
-
-    td::MultiPromiseActorSafe multi_promise{"MultiPromiseActor2"};
-    multi_promise.add_promise(std::move(promise));
-    for (int i = 0; i < 10; i++) {
-      td::create_actor<td::SleepActor>("Sleep", 0.1, multi_promise.get_promise()).release();
-    }
-  }
-};
-
-class MultiPromise1 final : public td::Actor {
- public:
-  void start_up() final {
-    auto promise = td::PromiseCreator::lambda([](td::Result<td::Unit> result) {
-      CHECK(result.is_error());
-      td::create_actor<MultiPromise2>("B").release();
-    });
-    td::MultiPromiseActorSafe multi_promise{"MultiPromiseActor1"};
-    multi_promise.add_promise(std::move(promise));
-  }
-};
-
-TEST(Actors, MultiPromise) {
-  td::ConcurrentScheduler scheduler(0, 0);
-  scheduler.create_actor_unsafe<MultiPromise1>(0, "A").release();
-  scheduler.start();
-  while (scheduler.run_main(10)) {
-  }
-  scheduler.finish();
-}
-
-class FastPromise final : public td::Actor {
- public:
-  void start_up() final {
-    td::PromiseFuture<int> pf;
-    auto promise = pf.move_promise();
-    auto future = pf.move_future();
-    promise.set_value(123);
-    CHECK(future.move_as_ok() == 123);
-    td::Scheduler::instance()->finish();
-  }
-};
-
-TEST(Actors, FastPromise) {
-  td::ConcurrentScheduler scheduler(0, 0);
-  scheduler.create_actor_unsafe<FastPromise>(0, "A").release();
-  scheduler.start();
-  while (scheduler.run_main(10)) {
-  }
-  scheduler.finish();
-}
-
-class StopInTeardown final : public td::Actor {
-  void loop() final {
-    stop();
-  }
-  void tear_down() final {
-    stop();
-    td::Scheduler::instance()->finish();
-  }
-};
-
-TEST(Actors, stop_in_teardown) {
-  td::ConcurrentScheduler scheduler(0, 0);
-  scheduler.create_actor_unsafe<StopInTeardown>(0, "A").release();
-  scheduler.start();
-  while (scheduler.run_main(10)) {
-  }
-  scheduler.finish();
-}
-
-class AlwaysWaitForMailbox final : public td::Actor {
- public:
-  void start_up() final {
-    td::create_actor<td::SleepActor>("Sleep", 0.1,
-                                     td::PromiseCreator::lambda([actor_id = actor_id(this), ptr = this](td::Unit) {
-                                       td::send_closure(actor_id, &AlwaysWaitForMailbox::g);
-                                       td::send_closure(actor_id, &AlwaysWaitForMailbox::g);
-                                       CHECK(!ptr->was_f_);
-                                     }))
-        .release();
-  }
-
-  void f() {
-    was_f_ = true;
-    td::Scheduler::instance()->finish();
-  }
-  void g() {
-    td::send_closure(actor_id(this), &AlwaysWaitForMailbox::f);
-  }
-
- private:
-  bool was_f_{false};
-};
-
-TEST(Actors, always_wait_for_mailbox) {
-  td::ConcurrentScheduler scheduler(0, 0);
-  scheduler.create_actor_unsafe<AlwaysWaitForMailbox>(0, "A").release();
-  scheduler.start();
-  while (scheduler.run_main(10)) {
-  }
-  scheduler.finish();
-}
-
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-TEST(Actors, send_from_other_threads) {
-  td::ConcurrentScheduler scheduler(1, 0);
-  int thread_n = 10;
-  class Listener final : public td::Actor {
-   public:
-    explicit Listener(int cnt) : cnt_(cnt) {
-    }
-    void dec() {
-      if (--cnt_ == 0) {
-        td::Scheduler::instance()->finish();
-      }
-    }
-
-   private:
-    int cnt_;
-  };
-
-  auto A = scheduler.create_actor_unsafe<Listener>(1, "A", thread_n).release();
-  scheduler.start();
-  td::vector<td::thread> threads(thread_n);
-  for (auto &thread : threads) {
-    thread = td::thread([&A, &scheduler] {
-      auto guard = scheduler.get_send_guard();
-      td::send_closure(A, &Listener::dec);
-    });
-  }
-  while (scheduler.run_main(10)) {
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-  scheduler.finish();
-}
-#endif
-
-class DelayedCall final : public td::Actor {
- public:
-  void on_called(int *step) {
-    CHECK(*step == 0);
-    *step = 1;
-  }
-};
-
-class MultiPromiseSendClosureLaterTest final : public td::Actor {
- public:
-  void start_up() final {
-    delayed_call_ = td::create_actor<DelayedCall>("DelayedCall").release();
-    mpa_.add_promise(td::PromiseCreator::lambda([this](td::Unit) {
-      CHECK(step_ == 1);
-      step_++;
-      td::Scheduler::instance()->finish();
-    }));
-    auto lock = mpa_.get_promise();
-    td::send_closure_later(delayed_call_, &DelayedCall::on_called, &step_);
-    lock.set_value(td::Unit());
-  }
-
-  void tear_down() final {
-    CHECK(step_ == 2);
-  }
-
- private:
-  int step_ = 0;
-  td::MultiPromiseActor mpa_{"MultiPromiseActor"};
-  td::ActorId<DelayedCall> delayed_call_;
-};
-
-TEST(Actors, MultiPromiseSendClosureLater) {
-  td::ConcurrentScheduler scheduler(0, 0);
-  scheduler.create_actor_unsafe<MultiPromiseSendClosureLaterTest>(0, "MultiPromiseSendClosureLaterTest").release();
-  scheduler.start();
-  while (scheduler.run_main(1)) {
-  }
-  scheduler.finish();
-}
diff --git a/third-party/td/td/tdactor/test/actors_workers.cpp b/third-party/td/td/tdactor/test/actors_workers.cpp
deleted file mode 100644
index 05b0ac6b08..0000000000
--- a/third-party/td/td/tdactor/test/actors_workers.cpp
+++ /dev/null
@@ -1,188 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/common.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/Time.h"
-
-class PowerWorker final : public td::Actor {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    Callback(Callback &&) = delete;
-    Callback &operator=(Callback &&) = delete;
-    virtual ~Callback() = default;
-    virtual void on_ready(int query, int res) = 0;
-    virtual void on_closed() = 0;
-  };
-  void set_callback(td::unique_ptr<Callback> callback) {
-    callback_ = std::move(callback);
-  }
-  void task(td::uint32 x, td::uint32 p) {
-    td::uint32 res = 1;
-    for (td::uint32 i = 0; i < p; i++) {
-      res *= x;
-    }
-    callback_->on_ready(x, res);
-  }
-  void close() {
-    callback_->on_closed();
-    stop();
-  }
-
- private:
-  td::unique_ptr<Callback> callback_;
-};
-
-class Manager final : public td::Actor {
- public:
-  Manager(int queries_n, int query_size, td::vector<td::ActorId<PowerWorker>> workers)
-      : workers_(std::move(workers))
-      , ref_cnt_(static_cast<int>(workers_.size()))
-      , left_query_(queries_n)
-      , query_size_(query_size) {
-  }
-
-  class Callback final : public PowerWorker::Callback {
-   public:
-    Callback(td::ActorId<Manager> actor_id, int worker_id) : actor_id_(actor_id), worker_id_(worker_id) {
-    }
-    void on_ready(int query, int result) final {
-      td::send_closure(actor_id_, &Manager::on_ready, worker_id_, query, result);
-    }
-    void on_closed() final {
-      td::send_closure_later(actor_id_, &Manager::on_closed, worker_id_);
-    }
-
-   private:
-    td::ActorId<Manager> actor_id_;
-    int worker_id_;
-  };
-
-  void start_up() final {
-    int i = 0;
-    for (auto &worker : workers_) {
-      ref_cnt_++;
-      td::send_closure_later(worker, &PowerWorker::set_callback, td::make_unique<Callback>(actor_id(this), i));
-      i++;
-      td::send_closure_later(worker, &PowerWorker::task, 3, query_size_);
-      left_query_--;
-    }
-  }
-
-  void on_ready(int worker_id, int query, int res) {
-    ref_cnt_--;
-    if (left_query_ == 0) {
-      td::send_closure(workers_[worker_id], &PowerWorker::close);
-    } else {
-      ref_cnt_++;
-      td::send_closure(workers_[worker_id], &PowerWorker::task, 3, query_size_);
-      left_query_--;
-    }
-  }
-
-  void on_closed(int worker_id) {
-    ref_cnt_--;
-    if (ref_cnt_ == 0) {
-      td::Scheduler::instance()->finish();
-      stop();
-    }
-  }
-
- private:
-  td::vector<td::ActorId<PowerWorker>> workers_;
-  int ref_cnt_;
-  int left_query_;
-  int query_size_;
-};
-
-static void test_workers(int threads_n, int workers_n, int queries_n, int query_size) {
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  td::vector<td::ActorId<PowerWorker>> workers;
-  for (int i = 0; i < workers_n; i++) {
-    int thread_id = threads_n ? i % (threads_n - 1) + 2 : 0;
-    workers.push_back(sched.create_actor_unsafe<PowerWorker>(thread_id, PSLICE() << "worker" << i).release());
-  }
-  sched.create_actor_unsafe<Manager>(threads_n ? 1 : 0, "Manager", queries_n, query_size, std::move(workers)).release();
-
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-
-  // sched.test_one_thread_run();
-}
-
-TEST(Actors, workers_big_query_one_thread) {
-  test_workers(0, 10, 1000, 300000);
-}
-
-TEST(Actors, workers_big_query_two_threads) {
-  test_workers(2, 10, 1000, 300000);
-}
-
-TEST(Actors, workers_big_query_nine_threads) {
-  test_workers(9, 10, 1000, 300000);
-}
-
-TEST(Actors, workers_small_query_one_thread) {
-  test_workers(0, 10, 100000, 1);
-}
-
-TEST(Actors, workers_small_query_two_threads) {
-  test_workers(2, 10, 100000, 1);
-}
-
-TEST(Actors, workers_small_query_nine_threads) {
-  test_workers(9, 10, 10000, 1);
-}
-
-class SenderActor;
-
-class ReceiverActor final : public td::Actor {
- public:
-  void receive(td::ActorId<SenderActor>) {
-  }
-};
-
-class SenderActor final : public td::Actor {
- public:
-  explicit SenderActor(td::ActorId<ReceiverActor> actor_id) : actor_id_(std::move(actor_id)) {
-  }
-
- private:
-  td::ActorId<ReceiverActor> actor_id_;
-
-  void loop() final {
-    for (int i = 0; i < 10000; i++) {
-      send_closure(actor_id_, &ReceiverActor::receive, actor_id(this));
-    }
-    set_timeout_in(0.001);
-  }
-};
-
-TEST(Actors, send_closure_while_finish) {
-  td::ConcurrentScheduler sched(1, 0);
-
-  auto receiver = sched.create_actor_unsafe<ReceiverActor>(0, "ReceiverActor").release();
-  sched.create_actor_unsafe<SenderActor>(1, "SenderActor", receiver).release();
-
-  sched.start();
-  auto end_time = td::Time::now() + 0.2;
-  while (td::Time::now() < end_time) {
-    sched.run_main(0.1);
-  }
-  sched.finish();
-}
diff --git a/third-party/td/td/tdclientjson_export_list b/third-party/td/td/tdclientjson_export_list
deleted file mode 100644
index 51f370e6f5..0000000000
--- a/third-party/td/td/tdclientjson_export_list
+++ /dev/null
@@ -1,14 +0,0 @@
-_td_json_client_create
-_td_json_client_destroy
-_td_json_client_send
-_td_json_client_receive
-_td_json_client_execute
-_td_set_log_file_path
-_td_set_log_max_file_size
-_td_set_log_verbosity_level
-_td_set_log_fatal_error_callback
-_td_create_client_id
-_td_send
-_td_receive
-_td_execute
-_td_set_log_message_callback
diff --git a/third-party/td/td/tddb/CMakeLists.txt b/third-party/td/td/tddb/CMakeLists.txt
deleted file mode 100644
index 6ac1b17dac..0000000000
--- a/third-party/td/td/tddb/CMakeLists.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-option(TDDB_ENABLE_INSTALL "Enable installation of the library." ON)
-
-if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
-  set(CMAKE_INSTALL_LIBDIR "lib")
-endif()
-
-set(TDDB_SOURCE
-  td/db/binlog/Binlog.cpp
-  td/db/binlog/BinlogEvent.cpp
-  td/db/binlog/ConcurrentBinlog.cpp
-  td/db/binlog/detail/BinlogEventsBuffer.cpp
-  td/db/binlog/detail/BinlogEventsProcessor.cpp
-
-  td/db/detail/RawSqliteDb.cpp
-
-  td/db/SqliteConnectionSafe.cpp
-  td/db/SqliteDb.cpp
-  td/db/SqliteKeyValue.cpp
-  td/db/SqliteKeyValueAsync.cpp
-  td/db/SqliteStatement.cpp
-  td/db/TQueue.cpp
-
-  td/db/binlog/Binlog.h
-  td/db/binlog/BinlogEvent.h
-  td/db/binlog/BinlogHelper.h
-  td/db/binlog/BinlogInterface.h
-  td/db/binlog/ConcurrentBinlog.h
-  td/db/binlog/detail/BinlogEventsBuffer.h
-  td/db/binlog/detail/BinlogEventsProcessor.h
-
-  td/db/BinlogKeyValue.h
-  td/db/DbKey.h
-  td/db/KeyValueSyncInterface.h
-  td/db/SeqKeyValue.h
-  td/db/SqliteConnectionSafe.h
-  td/db/SqliteDb.h
-  td/db/SqliteKeyValue.h
-  td/db/SqliteKeyValueAsync.h
-  td/db/SqliteKeyValueSafe.h
-  td/db/SqliteStatement.h
-  td/db/TQueue.h
-  td/db/TsSeqKeyValue.h
-
-  td/db/detail/RawSqliteDb.h
-)
-
-add_library(tddb STATIC ${TDDB_SOURCE})
-target_include_directories(tddb PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-target_link_libraries(tddb PUBLIC tdactor tdutils PRIVATE tdsqlite)
-
-if (NOT CMAKE_CROSSCOMPILING)
-  add_executable(binlog_dump td/db/binlog/binlog_dump.cpp)
-  target_link_libraries(binlog_dump PRIVATE tddb)
-endif()
-
-if (TDDB_ENABLE_INSTALL)
-  install(TARGETS tddb EXPORT TdStaticTargets
-    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  )
-endif()
diff --git a/third-party/td/td/tddb/td/db/BinlogKeyValue.h b/third-party/td/td/tddb/td/db/BinlogKeyValue.h
deleted file mode 100644
index c9c2a1ee1d..0000000000
--- a/third-party/td/td/tddb/td/db/BinlogKeyValue.h
+++ /dev/null
@@ -1,301 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/binlog/Binlog.h"
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/DbKey.h"
-#include "td/db/KeyValueSyncInterface.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/RwMutex.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-
-#include <functional>
-#include <memory>
-#include <unordered_map>
-#include <utility>
-
-namespace td {
-
-template <class BinlogT>
-class BinlogKeyValue final : public KeyValueSyncInterface {
- public:
-  static constexpr int32 MAGIC = 0x2a280000;
-
-  struct Event final : public Storer {
-    Event() = default;
-    Event(Slice key, Slice value) : key(key), value(value) {
-    }
-    Slice key;
-    Slice value;
-    template <class StorerT>
-    void store(StorerT &&storer) const {
-      storer.store_string(key);
-      storer.store_string(value);
-    }
-
-    template <class ParserT>
-    void parse(ParserT &&parser) {
-      key = parser.template fetch_string<Slice>();
-      value = parser.template fetch_string<Slice>();
-    }
-
-    size_t size() const final {
-      TlStorerCalcLength storer;
-      store(storer);
-      return storer.get_length();
-    }
-    size_t store(uint8 *ptr) const final {
-      TlStorerUnsafe storer(ptr);
-      store(storer);
-      return static_cast<size_t>(storer.get_buf() - ptr);
-    }
-  };
-
-  int32 get_magic() const {
-    return magic_;
-  }
-
-  Status init(string name, DbKey db_key = DbKey::empty(), int scheduler_id = -1,
-              int32 override_magic = 0) TD_WARN_UNUSED_RESULT {
-    close();
-    if (override_magic) {
-      magic_ = override_magic;
-    }
-
-    binlog_ = std::make_shared<BinlogT>();
-    TRY_STATUS(binlog_->init(
-        name,
-        [&](const BinlogEvent &binlog_event) {
-          Event event;
-          event.parse(TlParser(binlog_event.get_data()));
-          if (event.key.empty()) {
-            LOG(ERROR) << "Have event with empty key";
-            return;
-          }
-          map_.emplace(event.key.str(), std::make_pair(event.value.str(), binlog_event.id_));
-        },
-        std::move(db_key), DbKey::empty(), scheduler_id));
-    return Status::OK();
-  }
-
-  void external_init_begin(int32 override_magic = 0) {
-    close();
-    if (override_magic) {
-      magic_ = override_magic;
-    }
-  }
-
-  template <class OtherBinlogT>
-  void external_init_handle(BinlogKeyValue<OtherBinlogT> &&other) {
-    map_ = std::move(other.map_);
-  }
-
-  void external_init_handle(const BinlogEvent &binlog_event) {
-    Event event;
-    event.parse(TlParser(binlog_event.get_data()));
-    if (event.key.empty()) {
-      LOG(ERROR) << "Have external event with empty key";
-      return;
-    }
-    map_.emplace(event.key.str(), std::make_pair(event.value.str(), binlog_event.id_));
-  }
-
-  void external_init_finish(std::shared_ptr<BinlogT> binlog) {
-    binlog_ = std::move(binlog);
-  }
-
-  void close() {
-    *this = BinlogKeyValue();
-  }
-  void close(Promise<> promise) final {
-    binlog_->close(std::move(promise));
-  }
-
-  SeqNo set(string key, string value) final {
-    auto lock = rw_mutex_.lock_write();
-    uint64 old_event_id = 0;
-    CHECK(!key.empty());
-    auto it_ok = map_.emplace(key, std::make_pair(value, 0));
-    if (!it_ok.second) {
-      if (it_ok.first->second.first == value) {
-        return 0;
-      }
-      VLOG(binlog) << "Change value of key " << key << " from " << hex_encode(it_ok.first->second.first) << " to "
-                   << hex_encode(value);
-      old_event_id = it_ok.first->second.second;
-      it_ok.first->second.first = value;
-    } else {
-      VLOG(binlog) << "Set value of key " << key << " to " << hex_encode(value);
-    }
-    bool rewrite = false;
-    uint64 event_id;
-    auto seq_no = binlog_->next_event_id();
-    if (old_event_id != 0) {
-      rewrite = true;
-      event_id = old_event_id;
-    } else {
-      event_id = seq_no;
-      it_ok.first->second.second = event_id;
-    }
-
-    lock.reset();
-    add_event(seq_no,
-              BinlogEvent::create_raw(event_id, magic_, rewrite ? BinlogEvent::Flags::Rewrite : 0, Event{key, value}));
-    return seq_no;
-  }
-
-  SeqNo erase(const string &key) final {
-    auto lock = rw_mutex_.lock_write();
-    auto it = map_.find(key);
-    if (it == map_.end()) {
-      return 0;
-    }
-    VLOG(binlog) << "Remove value of key " << key << ", which is " << hex_encode(it->second.first);
-    uint64 event_id = it->second.second;
-    map_.erase(it);
-    auto seq_no = binlog_->next_event_id();
-    lock.reset();
-    add_event(seq_no, BinlogEvent::create_raw(event_id, BinlogEvent::ServiceTypes::Empty, BinlogEvent::Flags::Rewrite,
-                                              EmptyStorer()));
-    return seq_no;
-  }
-
-  SeqNo erase_batch(vector<string> keys) final {
-    auto lock = rw_mutex_.lock_write();
-    vector<uint64> log_event_ids;
-    for (auto &key : keys) {
-      auto it = map_.find(key);
-      if (it != map_.end()) {
-        log_event_ids.push_back(it->second.second);
-        map_.erase(it);
-      }
-    }
-    if (log_event_ids.empty()) {
-      return 0;
-    }
-    VLOG(binlog) << "Remove value of keys " << keys;
-    return binlog_->erase_batch(std::move(log_event_ids));
-  }
-
-  void add_event(uint64 seq_no, BufferSlice &&event) {
-    binlog_->add_raw_event(BinlogDebugInfo{__FILE__, __LINE__}, seq_no, std::move(event));
-  }
-
-  bool isset(const string &key) final {
-    auto lock = rw_mutex_.lock_read();
-    return map_.count(key) > 0;
-  }
-
-  string get(const string &key) final {
-    auto lock = rw_mutex_.lock_read();
-    auto it = map_.find(key);
-    if (it == map_.end()) {
-      return string();
-    }
-    VLOG(binlog) << "Get value of key " << key << ", which is " << hex_encode(it->second.first);
-    return it->second.first;
-  }
-
-  void force_sync(Promise<> &&promise, const char *source) final {
-    binlog_->force_sync(std::move(promise), source);
-  }
-
-  void lazy_sync(Promise<> &&promise) {
-    binlog_->lazy_sync(std::move(promise));
-  }
-
-  void for_each(std::function<void(Slice, Slice)> func) final {
-    auto lock = rw_mutex_.lock_write();
-    for (const auto &kv : map_) {
-      func(kv.first, kv.second.first);
-    }
-  }
-
-  std::unordered_map<string, string, Hash<string>> prefix_get(Slice prefix) final {
-    auto lock = rw_mutex_.lock_write();
-    std::unordered_map<string, string, Hash<string>> res;
-    for (const auto &kv : map_) {
-      if (begins_with(kv.first, prefix)) {
-        res.emplace(kv.first.substr(prefix.size()), kv.second.first);
-      }
-    }
-    return res;
-  }
-
-  FlatHashMap<string, string> get_all() final {
-    auto lock = rw_mutex_.lock_write();
-    FlatHashMap<string, string> res;
-    res.reserve(map_.size());
-    for (const auto &kv : map_) {
-      res.emplace(kv.first, kv.second.first);
-    }
-    return res;
-  }
-
-  void erase_by_prefix(Slice prefix) final {
-    auto lock = rw_mutex_.lock_write();
-    vector<uint64> event_ids;
-    table_remove_if(map_, [&](const auto &it) {
-      if (begins_with(it.first, prefix)) {
-        event_ids.push_back(it.second.second);
-        return true;
-      }
-      return false;
-    });
-    auto seq_no = binlog_->next_event_id(narrow_cast<int32>(event_ids.size()));
-    lock.reset();
-    for (auto event_id : event_ids) {
-      add_event(seq_no, BinlogEvent::create_raw(event_id, BinlogEvent::ServiceTypes::Empty, BinlogEvent::Flags::Rewrite,
-                                                EmptyStorer()));
-      seq_no++;
-    }
-  }
-
-  template <class T>
-  friend class BinlogKeyValue;
-
-  static Status destroy(Slice name) {
-    return Binlog::destroy(name);
-  }
-
- private:
-  FlatHashMap<string, std::pair<string, uint64>> map_;
-  std::shared_ptr<BinlogT> binlog_;
-  RwMutex rw_mutex_;
-  int32 magic_ = MAGIC;
-};
-
-template <>
-inline void BinlogKeyValue<Binlog>::add_event(uint64 seq_no, BufferSlice &&event) {
-  binlog_->add_raw_event(std::move(event), BinlogDebugInfo{__FILE__, __LINE__});
-}
-
-template <>
-inline void BinlogKeyValue<Binlog>::force_sync(Promise<> &&promise, const char *source) {
-  binlog_->sync(source);
-  promise.set_value(Unit());
-}
-
-template <>
-inline void BinlogKeyValue<Binlog>::lazy_sync(Promise<> &&promise) {
-  force_sync(std::move(promise), "lazy_sync");
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/DbKey.h b/third-party/td/td/tddb/td/db/DbKey.h
deleted file mode 100644
index 1c4d8d9cb4..0000000000
--- a/third-party/td/td/tddb/td/db/DbKey.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class DbKey {
-  enum class Type { Empty, RawKey, Password };
-
-  Type type() const {
-    return type_;
-  }
-
- public:
-  bool is_empty() const {
-    return type_ == Type::Empty;
-  }
-
-  bool is_raw_key() const {
-    return type_ == Type::RawKey;
-  }
-
-  bool is_password() const {
-    return type_ == Type::Password;
-  }
-
-  CSlice data() const {
-    return data_;
-  }
-
-  static DbKey raw_key(string raw_key) {
-    DbKey res;
-    res.type_ = Type::RawKey;
-    res.data_ = std::move(raw_key);
-    return res;
-  }
-
-  static DbKey password(string password) {
-    DbKey res;
-    res.type_ = Type::Password;
-    res.data_ = std::move(password);
-    return res;
-  }
-
-  static DbKey empty() {
-    return DbKey();
-  }
-
- private:
-  Type type_{Type::Empty};
-  string data_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/KeyValueSyncInterface.h b/third-party/td/td/tddb/td/db/KeyValueSyncInterface.h
deleted file mode 100644
index 33bbfd61df..0000000000
--- a/third-party/td/td/tddb/td/db/KeyValueSyncInterface.h
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-
-#include <functional>
-#include <unordered_map>
-
-namespace td {
-
-class KeyValueSyncInterface {
- public:
-  // SeqNo is used to restore total order on all write queries.
-  // Some implementations may return 0 as SeqNo.
-  using SeqNo = uint64;
-
-  KeyValueSyncInterface() = default;
-  KeyValueSyncInterface(const KeyValueSyncInterface &) = delete;
-  KeyValueSyncInterface &operator=(const KeyValueSyncInterface &) = delete;
-  KeyValueSyncInterface(KeyValueSyncInterface &&) = default;
-  KeyValueSyncInterface &operator=(KeyValueSyncInterface &&) = default;
-  virtual ~KeyValueSyncInterface() = default;
-
-  virtual SeqNo set(string key, string value) = 0;
-
-  virtual bool isset(const string &key) = 0;
-
-  virtual string get(const string &key) = 0;
-
-  virtual void for_each(std::function<void(Slice, Slice)> func) = 0;
-
-  virtual std::unordered_map<string, string, Hash<string>> prefix_get(Slice prefix) = 0;
-
-  virtual FlatHashMap<string, string> get_all() = 0;
-
-  virtual SeqNo erase(const string &key) = 0;
-
-  virtual SeqNo erase_batch(vector<string> keys) = 0;
-
-  virtual void erase_by_prefix(Slice prefix) = 0;
-
-  virtual void force_sync(Promise<> &&promise, const char *source) = 0;
-
-  virtual void close(Promise<> promise) = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SeqKeyValue.h b/third-party/td/td/tddb/td/db/SeqKeyValue.h
deleted file mode 100644
index 6b3e0987e6..0000000000
--- a/third-party/td/td/tddb/td/db/SeqKeyValue.h
+++ /dev/null
@@ -1,105 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class SeqKeyValue {
- public:
-  using SeqNo = uint64;
-  SeqKeyValue() = default;
-  SeqKeyValue(SeqKeyValue &&) = default;
-  SeqKeyValue &operator=(SeqKeyValue &&) = default;
-  SeqKeyValue(const SeqKeyValue &) = delete;
-  SeqKeyValue &operator=(const SeqKeyValue &) = delete;
-  ~SeqKeyValue() = default;
-
-  SeqNo set(Slice key, Slice value) {
-    CHECK(!key.empty());
-    auto it_ok = map_.emplace(key.str(), value.str());
-    if (!it_ok.second) {
-      if (it_ok.first->second == value) {
-        return 0;
-      }
-      it_ok.first->second = value.str();
-    }
-    return next_seq_no();
-  }
-
-  SeqNo erase(const string &key) {
-    auto it = map_.find(key);
-    if (it == map_.end()) {
-      return 0;
-    }
-    map_.erase(it);
-    return next_seq_no();
-  }
-
-  SeqNo erase_batch(vector<string> keys) {
-    size_t count = 0;
-    for (auto &key : keys) {
-      auto it = map_.find(key);
-      if (it != map_.end()) {
-        map_.erase(it);
-        count++;
-      }
-    }
-    if (count == 0) {
-      return 0;
-    }
-    SeqNo result = current_id_ + 1;
-    current_id_ += count;
-    return result;
-  }
-
-  SeqNo seq_no() const {
-    return current_id_ + 1;
-  }
-
-  string get(const string &key) const {
-    auto it = map_.find(key);
-    if (it == map_.end()) {
-      return string();
-    }
-    return it->second;
-  }
-
-  bool isset(const string &key) const {
-    auto it = map_.find(key);
-    if (it == map_.end()) {
-      return false;
-    }
-    return true;
-  }
-
-  size_t size() const {
-    return map_.size();
-  }
-
-  FlatHashMap<string, string> get_all() const {
-    FlatHashMap<string, string> result;
-    result.reserve(map_.size());
-    for (auto &it : map_) {
-      result.emplace(it.first, it.second);
-    }
-    return result;
-  }
-
- private:
-  FlatHashMap<string, string> map_;
-  SeqNo current_id_ = 0;
-
-  SeqNo next_seq_no() {
-    return ++current_id_;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteConnectionSafe.cpp b/third-party/td/td/tddb/td/db/SqliteConnectionSafe.cpp
deleted file mode 100644
index 8d651c3ef1..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteConnectionSafe.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/SqliteConnectionSafe.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-
-namespace td {
-
-SqliteConnectionSafe::SqliteConnectionSafe(string path, DbKey key, optional<int32> cipher_version)
-    : path_(std::move(path))
-    , lsls_connection_([path = path_, close_state_ptr = &close_state_, key = std::move(key),
-                        cipher_version = std::move(cipher_version)] {
-      auto r_db = SqliteDb::open_with_key(path, false, key, cipher_version.copy());
-      if (r_db.is_error()) {
-        LOG(FATAL) << "Can't open database in state " << close_state_ptr->load() << ": " << r_db.error().message();
-      }
-      auto db = r_db.move_as_ok();
-      db.exec("PRAGMA journal_mode=WAL").ensure();
-      db.exec("PRAGMA secure_delete=1").ensure();
-      return db;
-    }) {
-}
-
-void SqliteConnectionSafe::set(SqliteDb &&db) {
-  lsls_connection_.set(std::move(db));
-}
-
-SqliteDb &SqliteConnectionSafe::get() {
-  return lsls_connection_.get();
-}
-
-void SqliteConnectionSafe::close() {
-  LOG(INFO) << "Close SQLite database " << tag("path", path_);
-  close_state_++;
-  lsls_connection_.clear_values();
-}
-
-void SqliteConnectionSafe::close_and_destroy() {
-  close();
-  LOG(INFO) << "Destroy SQLite database " << tag("path", path_);
-  close_state_ += 65536;
-  SqliteDb::destroy(path_).ignore();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteConnectionSafe.h b/third-party/td/td/tddb/td/db/SqliteConnectionSafe.h
deleted file mode 100644
index 3ba189ad40..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteConnectionSafe.h
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/DbKey.h"
-#include "td/db/SqliteDb.h"
-
-#include "td/actor/SchedulerLocalStorage.h"
-
-#include "td/utils/common.h"
-#include "td/utils/optional.h"
-
-#include <atomic>
-
-namespace td {
-
-class SqliteConnectionSafe {
- public:
-  SqliteConnectionSafe() = default;
-  SqliteConnectionSafe(string path, DbKey key, optional<int32> cipher_version = {});
-
-  SqliteDb &get();
-  void set(SqliteDb &&db);
-
-  void close();
-
-  void close_and_destroy();
-
- private:
-  string path_;
-  std::atomic<uint32> close_state_{0};
-  LazySchedulerLocalStorage<SqliteDb> lsls_connection_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteDb.cpp b/third-party/td/td/tddb/td/db/SqliteDb.cpp
deleted file mode 100644
index dbf85d2217..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteDb.cpp
+++ /dev/null
@@ -1,323 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/SqliteDb.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Timer.h"
-
-#include "sqlite/sqlite3.h"
-
-namespace td {
-
-namespace {
-string quote_string(Slice str) {
-  size_t cnt = 0;
-  for (auto &c : str) {
-    if (c == '\'') {
-      cnt++;
-    }
-  }
-  if (cnt == 0) {
-    return str.str();
-  }
-
-  string result;
-  result.reserve(str.size() + cnt);
-  for (auto &c : str) {
-    if (c == '\'') {
-      result += '\'';
-    }
-    result += c;
-  }
-  return result;
-}
-
-string db_key_to_sqlcipher_key(const DbKey &db_key) {
-  if (db_key.is_empty()) {
-    return "''";
-  }
-  if (db_key.is_password()) {
-    return PSTRING() << "'" << quote_string(db_key.data()) << "'";
-  }
-  CHECK(db_key.is_raw_key());
-  Slice raw_key = db_key.data();
-  CHECK(raw_key.size() == 32);
-  size_t expected_size = 64 + 5;
-  string res(expected_size + 50, ' ');
-  StringBuilder sb(res);
-  sb << '"';
-  sb << 'x';
-  sb << '\'';
-  sb << format::as_hex_dump<0>(raw_key);
-  sb << '\'';
-  sb << '"';
-  CHECK(!sb.is_error());
-  CHECK(sb.as_cslice().size() == expected_size);
-  res.resize(expected_size);
-  return res;
-}
-}  // namespace
-
-SqliteDb::~SqliteDb() = default;
-
-Status SqliteDb::init(CSlice path, bool allow_creation) {
-  // if database does not exist, delete all other files which could have been left from the old database
-  auto database_stat = stat(path);
-  if (database_stat.is_error()) {
-    if (!allow_creation) {
-      bool was_destroyed = detail::RawSqliteDb::was_any_database_destroyed();
-      auto reason = was_destroyed ? Slice("was corrupted and deleted") : Slice("disappeared");
-      return Status::Error(PSLICE() << "Database " << reason
-                                    << " during execution and can't be recreated: " << database_stat.error());
-    }
-    TRY_STATUS(destroy(path));
-  }
-
-  tdsqlite3 *db;
-  CHECK(tdsqlite3_threadsafe() != 0);
-  int rc =
-      tdsqlite3_open_v2(path.c_str(), &db, SQLITE_OPEN_READWRITE | (allow_creation ? SQLITE_OPEN_CREATE : 0), nullptr);
-  if (rc != SQLITE_OK) {
-    auto res = detail::RawSqliteDb::last_error(db, path);
-    tdsqlite3_close(db);
-    return res;
-  }
-  tdsqlite3_busy_timeout(db, 1000 * 5 /* 5 seconds */);
-  raw_ = std::make_shared<detail::RawSqliteDb>(db, path.str());
-  return Status::OK();
-}
-
-static void trace_callback(void *ptr, const char *query) {
-  LOG(ERROR) << query;
-}
-
-static int trace_v2_callback(unsigned code, void *ctx, void *p_raw, void *x_raw) {
-  CHECK(code == SQLITE_TRACE_STMT);
-  auto x = static_cast<const char *>(x_raw);
-  if (x[0] == '-' && x[1] == '-') {
-    trace_callback(ctx, x);
-  } else {
-    trace_callback(ctx, tdsqlite3_expanded_sql(static_cast<tdsqlite3_stmt *>(p_raw)));
-  }
-
-  return 0;
-}
-
-void SqliteDb::trace(bool flag) {
-  tdsqlite3_trace_v2(raw_->db(), SQLITE_TRACE_STMT, flag ? trace_v2_callback : nullptr, nullptr);
-}
-
-Status SqliteDb::exec(CSlice cmd) {
-  CHECK(!empty());
-  char *msg;
-  if (enable_logging_) {
-    VLOG(sqlite) << "Start exec " << tag("query", cmd) << tag("database", raw_->db());
-  }
-  auto rc = tdsqlite3_exec(raw_->db(), cmd.c_str(), nullptr, nullptr, &msg);
-  if (rc != SQLITE_OK) {
-    CHECK(msg != nullptr);
-    if (enable_logging_) {
-      VLOG(sqlite) << "Finish exec with error " << msg;
-    }
-    return Status::Error(PSLICE() << tag("query", cmd) << " to database \"" << raw_->path() << "\" failed: " << msg);
-  }
-  CHECK(msg == nullptr);
-  if (enable_logging_) {
-    VLOG(sqlite) << "Finish exec";
-  }
-  return Status::OK();
-}
-
-Result<bool> SqliteDb::has_table(Slice table) {
-  TRY_RESULT(stmt, get_statement(PSLICE() << "SELECT count(*) FROM sqlite_master WHERE type='table' AND name='" << table
-                                          << "'"));
-  TRY_STATUS(stmt.step());
-  CHECK(stmt.has_row());
-  auto cnt = stmt.view_int32(0);
-  return cnt == 1;
-}
-
-Result<string> SqliteDb::get_pragma(Slice name) {
-  TRY_RESULT(stmt, get_statement(PSLICE() << "PRAGMA " << name));
-  TRY_STATUS(stmt.step());
-  CHECK(stmt.has_row());
-  auto res = stmt.view_blob(0).str();
-  TRY_STATUS(stmt.step());
-  CHECK(!stmt.can_step());
-  return std::move(res);
-}
-
-Result<string> SqliteDb::get_pragma_string(Slice name) {
-  TRY_RESULT(stmt, get_statement(PSLICE() << "PRAGMA " << name));
-  TRY_STATUS(stmt.step());
-  CHECK(stmt.has_row());
-  auto res = stmt.view_string(0).str();
-  TRY_STATUS(stmt.step());
-  CHECK(!stmt.can_step());
-  return std::move(res);
-}
-
-Result<int32> SqliteDb::user_version() {
-  TRY_RESULT(get_version_stmt, get_statement("PRAGMA user_version"));
-  TRY_STATUS(get_version_stmt.step());
-  if (!get_version_stmt.has_row()) {
-    return Status::Error(PSLICE() << "PRAGMA user_version failed for database \"" << raw_->path() << '"');
-  }
-  return get_version_stmt.view_int32(0);
-}
-
-Status SqliteDb::set_user_version(int32 version) {
-  return exec(PSLICE() << "PRAGMA user_version = " << version);
-}
-
-Status SqliteDb::begin_read_transaction() {
-  if (raw_->on_begin()) {
-    return exec("BEGIN");
-  }
-  return Status::OK();
-}
-
-Status SqliteDb::begin_write_transaction() {
-  if (raw_->on_begin()) {
-    return exec("BEGIN IMMEDIATE");
-  }
-  return Status::OK();
-}
-
-Status SqliteDb::commit_transaction() {
-  TRY_RESULT(need_commit, raw_->on_commit());
-  if (need_commit) {
-    return exec("COMMIT");
-  }
-  return Status::OK();
-}
-
-Status SqliteDb::check_encryption() {
-  auto status = exec("SELECT count(*) FROM sqlite_master");
-  if (status.is_ok()) {
-    enable_logging_ = true;
-  }
-  return status;
-}
-
-Result<SqliteDb> SqliteDb::open_with_key(CSlice path, bool allow_creation, const DbKey &db_key,
-                                         optional<int32> cipher_version) {
-  auto res = do_open_with_key(path, allow_creation, db_key, cipher_version ? cipher_version.value() : 0);
-  if (res.is_error() && !cipher_version && !db_key.is_empty()) {
-    return do_open_with_key(path, false, db_key, 3);
-  }
-  return res;
-}
-
-Result<SqliteDb> SqliteDb::do_open_with_key(CSlice path, bool allow_creation, const DbKey &db_key,
-                                            int32 cipher_version) {
-  SqliteDb db;
-  TRY_STATUS(db.init(path, allow_creation));
-  if (!db_key.is_empty()) {
-    if (db.check_encryption().is_ok()) {
-      return Status::Error(PSLICE() << "No key is needed for database \"" << path << '"');
-    }
-    auto key = db_key_to_sqlcipher_key(db_key);
-    TRY_STATUS(db.exec(PSLICE() << "PRAGMA key = " << key));
-    if (cipher_version != 0) {
-      LOG(INFO) << "Trying SQLCipher compatibility mode with version = " << cipher_version;
-      TRY_STATUS(db.exec(PSLICE() << "PRAGMA cipher_compatibility = " << cipher_version));
-    }
-    db.set_cipher_version(cipher_version);
-  }
-  TRY_STATUS_PREFIX(db.check_encryption(), "Can't check database: ");
-  return std::move(db);
-}
-
-void SqliteDb::set_cipher_version(int32 cipher_version) {
-  raw_->set_cipher_version(cipher_version);
-}
-
-optional<int32> SqliteDb::get_cipher_version() const {
-  return raw_->get_cipher_version();
-}
-
-Result<SqliteDb> SqliteDb::change_key(CSlice path, bool allow_creation, const DbKey &new_db_key,
-                                      const DbKey &old_db_key) {
-  // fast path
-  {
-    PerfWarningTimer perf("open database", 0.05);
-    auto r_db = open_with_key(path, allow_creation, new_db_key);
-    if (r_db.is_ok()) {
-      return r_db;
-    }
-  }
-
-  PerfWarningTimer perf("change database key", 0.5);
-  auto create_database = [](CSlice tmp_path) -> Status {
-    TRY_STATUS(destroy(tmp_path));
-    SqliteDb db;
-    return db.init(tmp_path, true);
-  };
-
-  TRY_RESULT(db, open_with_key(path, false, old_db_key));
-  TRY_RESULT(user_version, db.user_version());
-  auto new_key = db_key_to_sqlcipher_key(new_db_key);
-  if (old_db_key.is_empty() && !new_db_key.is_empty()) {
-    LOG(DEBUG) << "ENCRYPT";
-    PerfWarningTimer timer("Encrypt SQLite database", 0.1);
-    auto tmp_path = path.str() + ".encrypted";
-    TRY_STATUS(create_database(tmp_path));
-
-    // make sure that database is not empty
-    TRY_STATUS(db.exec("CREATE TABLE IF NOT EXISTS encryption_dummy_table(id INT PRIMARY KEY)"));
-    TRY_STATUS(db.exec(PSLICE() << "ATTACH DATABASE '" << quote_string(tmp_path) << "' AS encrypted KEY " << new_key));
-    TRY_STATUS(db.exec("SELECT sqlcipher_export('encrypted')"));
-    TRY_STATUS(db.exec(PSLICE() << "PRAGMA encrypted.user_version = " << user_version));
-    TRY_STATUS(db.exec("DETACH DATABASE encrypted"));
-    db.close();
-    TRY_STATUS(rename(tmp_path, path));
-  } else if (!old_db_key.is_empty() && new_db_key.is_empty()) {
-    LOG(DEBUG) << "DECRYPT";
-    PerfWarningTimer timer("Decrypt SQLite database", 0.1);
-    auto tmp_path = path.str() + ".encrypted";
-    TRY_STATUS(create_database(tmp_path));
-
-    TRY_STATUS(db.exec(PSLICE() << "ATTACH DATABASE '" << quote_string(tmp_path) << "' AS decrypted KEY ''"));
-    TRY_STATUS(db.exec("SELECT sqlcipher_export('decrypted')"));
-    TRY_STATUS(db.exec(PSLICE() << "PRAGMA decrypted.user_version = " << user_version));
-    TRY_STATUS(db.exec("DETACH DATABASE decrypted"));
-    db.close();
-    TRY_STATUS(rename(tmp_path, path));
-  } else {
-    LOG(DEBUG) << "REKEY";
-    PerfWarningTimer timer("Rekey SQLite database", 0.1);
-    TRY_STATUS(db.exec(PSLICE() << "PRAGMA rekey = " << new_key));
-  }
-
-  TRY_RESULT(new_db, open_with_key(path, false, new_db_key));
-  CHECK(new_db.user_version().ok() == user_version);
-  return std::move(new_db);
-}
-Status SqliteDb::destroy(Slice path) {
-  return detail::RawSqliteDb::destroy(path);
-}
-
-Result<SqliteStatement> SqliteDb::get_statement(CSlice statement) {
-  tdsqlite3_stmt *stmt = nullptr;
-  auto rc =
-      tdsqlite3_prepare_v2(get_native(), statement.c_str(), static_cast<int>(statement.size()) + 1, &stmt, nullptr);
-  if (rc != SQLITE_OK) {
-    return Status::Error(PSLICE() << "Failed to prepare SQLite " << tag("statement", statement) << raw_->last_error());
-  }
-  LOG_CHECK(stmt != nullptr) << statement;
-  return SqliteStatement(stmt, raw_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteDb.h b/third-party/td/td/tddb/td/db/SqliteDb.h
deleted file mode 100644
index 133beb4269..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteDb.h
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/DbKey.h"
-#include "td/db/SqliteStatement.h"
-
-#include "td/db/detail/RawSqliteDb.h"
-
-#include "td/utils/common.h"
-#include "td/utils/optional.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-struct tdsqlite3;
-
-namespace td {
-
-class SqliteDb {
- public:
-  SqliteDb() = default;
-  SqliteDb(SqliteDb &&) = default;
-  SqliteDb &operator=(SqliteDb &&) = default;
-  SqliteDb(const SqliteDb &) = delete;
-  SqliteDb &operator=(const SqliteDb &) = delete;
-  ~SqliteDb();
-
-  // dangerous
-  SqliteDb clone() const {
-    return SqliteDb(raw_, enable_logging_);
-  }
-
-  bool empty() const {
-    return !raw_;
-  }
-  void close() {
-    *this = SqliteDb();
-  }
-
-  Status exec(CSlice cmd) TD_WARN_UNUSED_RESULT;
-  Result<bool> has_table(Slice table);
-  Result<string> get_pragma(Slice name);
-  Result<string> get_pragma_string(Slice name);
-
-  Status begin_read_transaction() TD_WARN_UNUSED_RESULT;
-  Status begin_write_transaction() TD_WARN_UNUSED_RESULT;
-  Status commit_transaction() TD_WARN_UNUSED_RESULT;
-
-  Result<int32> user_version();
-  Status set_user_version(int32 version) TD_WARN_UNUSED_RESULT;
-  void trace(bool flag);
-
-  static Status destroy(Slice path) TD_WARN_UNUSED_RESULT;
-
-  // we can't change the key on the fly, so static functions are more than enough
-  static Result<SqliteDb> open_with_key(CSlice path, bool allow_creation, const DbKey &db_key,
-                                        optional<int32> cipher_version = {});
-  static Result<SqliteDb> change_key(CSlice path, bool allow_creation, const DbKey &new_db_key,
-                                     const DbKey &old_db_key);
-
-  tdsqlite3 *get_native() const {
-    return raw_->db();
-  }
-
-  Result<SqliteStatement> get_statement(CSlice statement) TD_WARN_UNUSED_RESULT;
-
-  template <class F>
-  static void with_db_path(Slice main_path, F &&f) {
-    detail::RawSqliteDb::with_db_path(main_path, f);
-  }
-
-  optional<int32> get_cipher_version() const;
-
- private:
-  SqliteDb(std::shared_ptr<detail::RawSqliteDb> raw, bool enable_logging)
-      : raw_(std::move(raw)), enable_logging_(enable_logging) {
-  }
-  std::shared_ptr<detail::RawSqliteDb> raw_;
-  bool enable_logging_ = false;
-
-  Status init(CSlice path, bool allow_creation) TD_WARN_UNUSED_RESULT;
-
-  Status check_encryption();
-  static Result<SqliteDb> do_open_with_key(CSlice path, bool allow_creation, const DbKey &db_key, int32 cipher_version);
-  void set_cipher_version(int32 cipher_version);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteKeyValue.cpp b/third-party/td/td/tddb/td/db/SqliteKeyValue.cpp
deleted file mode 100644
index d79ebb4c46..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteKeyValue.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/SqliteKeyValue.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/logging.h"
-#include "td/utils/ScopeGuard.h"
-
-namespace td {
-
-Status SqliteKeyValue::init_with_connection(SqliteDb connection, string table_name) {
-  auto init_guard = ScopeExit() + [&] {
-    close();
-  };
-  db_ = std::move(connection);
-  table_name_ = std::move(table_name);
-  TRY_STATUS(init(db_, table_name_));
-
-  TRY_RESULT_ASSIGN(set_stmt_,
-                    db_.get_statement(PSLICE() << "REPLACE INTO " << table_name_ << " (k, v) VALUES (?1, ?2)"));
-  TRY_RESULT_ASSIGN(get_stmt_, db_.get_statement(PSLICE() << "SELECT v FROM " << table_name_ << " WHERE k = ?1"));
-  TRY_RESULT_ASSIGN(erase_stmt_, db_.get_statement(PSLICE() << "DELETE FROM " << table_name_ << " WHERE k = ?1"));
-  TRY_RESULT_ASSIGN(get_all_stmt_, db_.get_statement(PSLICE() << "SELECT k, v FROM " << table_name_));
-
-  TRY_RESULT_ASSIGN(erase_by_prefix_stmt_,
-                    db_.get_statement(PSLICE() << "DELETE FROM " << table_name_ << " WHERE ?1 <= k AND k < ?2"));
-  TRY_RESULT_ASSIGN(erase_by_prefix_rare_stmt_,
-                    db_.get_statement(PSLICE() << "DELETE FROM " << table_name_ << " WHERE ?1 <= k"));
-
-  TRY_RESULT_ASSIGN(get_by_prefix_stmt_,
-                    db_.get_statement(PSLICE() << "SELECT k, v FROM " << table_name_ << " WHERE ?1 <= k AND k < ?2"));
-  TRY_RESULT_ASSIGN(get_by_prefix_rare_stmt_,
-                    db_.get_statement(PSLICE() << "SELECT k, v FROM " << table_name_ << " WHERE ?1 <= k"));
-
-  init_guard.dismiss();
-  return Status::OK();
-}
-
-Status SqliteKeyValue::drop() {
-  if (empty()) {
-    return Status::OK();
-  }
-
-  auto result = drop(db_, table_name_);
-  close();
-  return result;
-}
-
-void SqliteKeyValue::set(Slice key, Slice value) {
-  set_stmt_.bind_blob(1, key).ensure();
-  set_stmt_.bind_blob(2, value).ensure();
-  auto status = set_stmt_.step();
-  if (status.is_error()) {
-    LOG(FATAL) << "Failed to set \"" << base64_encode(key) << "\": " << status;
-  }
-  set_stmt_.reset();
-}
-
-void SqliteKeyValue::set_all(const FlatHashMap<string, string> &key_values) {
-  begin_write_transaction().ensure();
-  for (auto &key_value : key_values) {
-    set(key_value.first, key_value.second);
-  }
-  commit_transaction().ensure();
-}
-
-string SqliteKeyValue::get(Slice key) {
-  SCOPE_EXIT {
-    get_stmt_.reset();
-  };
-  get_stmt_.bind_blob(1, key).ensure();
-  get_stmt_.step().ensure();
-  if (!get_stmt_.has_row()) {
-    return string();
-  }
-  auto data = get_stmt_.view_blob(0).str();
-  get_stmt_.step().ignore();
-  return data;
-}
-
-void SqliteKeyValue::erase(Slice key) {
-  erase_stmt_.bind_blob(1, key).ensure();
-  erase_stmt_.step().ensure();
-  erase_stmt_.reset();
-}
-
-void SqliteKeyValue::erase_batch(vector<string> keys) {
-  for (auto &key : keys) {
-    erase(key);
-  }
-}
-
-void SqliteKeyValue::erase_by_prefix(Slice prefix) {
-  auto next = next_prefix(prefix);
-  if (next.empty()) {
-    SCOPE_EXIT {
-      erase_by_prefix_rare_stmt_.reset();
-    };
-    erase_by_prefix_rare_stmt_.bind_blob(1, prefix).ensure();
-    erase_by_prefix_rare_stmt_.step().ensure();
-  } else {
-    SCOPE_EXIT {
-      erase_by_prefix_stmt_.reset();
-    };
-    erase_by_prefix_stmt_.bind_blob(1, prefix).ensure();
-    erase_by_prefix_stmt_.bind_blob(2, next).ensure();
-    erase_by_prefix_stmt_.step().ensure();
-  }
-}
-
-string SqliteKeyValue::next_prefix(Slice prefix) {
-  string next = prefix.str();
-  size_t pos = next.size();
-  while (pos) {
-    pos--;
-    auto value = static_cast<uint8>(next[pos]);
-    value++;
-    next[pos] = static_cast<char>(value);
-    if (value != 0) {
-      return next;
-    }
-  }
-  return string{};
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteKeyValue.h b/third-party/td/td/tddb/td/db/SqliteKeyValue.h
deleted file mode 100644
index 93625cbfb4..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteKeyValue.h
+++ /dev/null
@@ -1,134 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteStatement.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class SqliteKeyValue {
- public:
-  static Status drop(SqliteDb &connection, Slice table_name) TD_WARN_UNUSED_RESULT {
-    return connection.exec(PSLICE() << "DROP TABLE IF EXISTS " << table_name);
-  }
-
-  static Status init(SqliteDb &connection, Slice table_name) TD_WARN_UNUSED_RESULT {
-    return connection.exec(PSLICE() << "CREATE TABLE IF NOT EXISTS " << table_name << " (k BLOB PRIMARY KEY, v BLOB)");
-  }
-
-  bool empty() const {
-    return db_.empty();
-  }
-
-  Status init_with_connection(SqliteDb connection, string table_name) TD_WARN_UNUSED_RESULT;
-
-  void close() {
-    *this = SqliteKeyValue();
-  }
-
-  Status drop();
-
-  void set(Slice key, Slice value);
-
-  void set_all(const FlatHashMap<string, string> &key_values);
-
-  string get(Slice key);
-
-  void erase(Slice key);
-
-  void erase_batch(vector<string> keys);
-
-  Status begin_read_transaction() TD_WARN_UNUSED_RESULT {
-    return db_.begin_read_transaction();
-  }
-
-  Status begin_write_transaction() TD_WARN_UNUSED_RESULT {
-    return db_.begin_write_transaction();
-  }
-
-  Status commit_transaction() TD_WARN_UNUSED_RESULT {
-    return db_.commit_transaction();
-  }
-
-  void erase_by_prefix(Slice prefix);
-
-  FlatHashMap<string, string> get_all() {
-    FlatHashMap<string, string> res;
-    get_by_prefix("", [&](Slice key, Slice value) {
-      CHECK(!key.empty());
-      res.emplace(key.str(), value.str());
-      return true;
-    });
-    return res;
-  }
-
-  template <class CallbackT>
-  void get_by_prefix(Slice prefix, CallbackT &&callback) {
-    string next;
-    if (!prefix.empty()) {
-      next = next_prefix(prefix);
-    }
-    get_by_range_impl(prefix, next, true, callback);
-  }
-
-  template <class CallbackT>
-  void get_by_range(Slice from, Slice till, CallbackT &&callback) {
-    get_by_range_impl(from, till, false, std::move(callback));
-  }
-
- private:
-  template <class CallbackT>
-  void get_by_range_impl(Slice from, Slice till, bool strip_key_prefix, CallbackT &&callback) {
-    SqliteStatement *stmt = nullptr;
-    if (from.empty()) {
-      stmt = &get_all_stmt_;
-    } else {
-      if (till.empty()) {
-        stmt = &get_by_prefix_rare_stmt_;
-        stmt->bind_blob(1, till).ensure();
-      } else {
-        stmt = &get_by_prefix_stmt_;
-        stmt->bind_blob(1, from).ensure();
-        stmt->bind_blob(2, till).ensure();
-      }
-    }
-    auto guard = stmt->guard();
-    stmt->step().ensure();
-    while (stmt->has_row()) {
-      auto key = stmt->view_blob(0);
-      if (strip_key_prefix) {
-        key.remove_prefix(from.size());
-      }
-      if (!callback(key, stmt->view_blob(1))) {
-        return;
-      }
-      stmt->step().ensure();
-    }
-  }
-
-  string table_name_;
-  SqliteDb db_;
-  SqliteStatement get_stmt_;
-  SqliteStatement set_stmt_;
-  SqliteStatement erase_stmt_;
-  SqliteStatement get_all_stmt_;
-  SqliteStatement erase_by_prefix_stmt_;
-  SqliteStatement erase_by_prefix_rare_stmt_;
-  SqliteStatement get_by_prefix_stmt_;
-  SqliteStatement get_by_prefix_rare_stmt_;
-
-  static string next_prefix(Slice prefix);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteKeyValueAsync.cpp b/third-party/td/td/tddb/td/db/SqliteKeyValueAsync.cpp
deleted file mode 100644
index 8d705d8f79..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteKeyValueAsync.cpp
+++ /dev/null
@@ -1,166 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/SqliteKeyValueAsync.h"
-
-#include "td/db/SqliteKeyValue.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/optional.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-class SqliteKeyValueAsync final : public SqliteKeyValueAsyncInterface {
- public:
-  explicit SqliteKeyValueAsync(std::shared_ptr<SqliteKeyValueSafe> kv_safe, int32 scheduler_id = -1) {
-    impl_ = create_actor_on_scheduler<Impl>("KV", scheduler_id, std::move(kv_safe));
-  }
-  void set(string key, string value, Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::set, std::move(key), std::move(value), std::move(promise));
-  }
-  void set_all(FlatHashMap<string, string> key_values, Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::set_all, std::move(key_values), std::move(promise));
-  }
-  void erase(string key, Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::erase, std::move(key), std::move(promise));
-  }
-  void erase_by_prefix(string key_prefix, Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::erase_by_prefix, std::move(key_prefix), std::move(promise));
-  }
-  void get(string key, Promise<string> promise) final {
-    send_closure_later(impl_, &Impl::get, std::move(key), std::move(promise));
-  }
-  void close(Promise<Unit> promise) final {
-    send_closure_later(impl_, &Impl::close, std::move(promise));
-  }
-
- private:
-  class Impl final : public Actor {
-   public:
-    explicit Impl(std::shared_ptr<SqliteKeyValueSafe> kv_safe) : kv_safe_(std::move(kv_safe)) {
-    }
-
-    void set(string key, string value, Promise<Unit> promise) {
-      auto it = buffer_.find(key);
-      if (it != buffer_.end()) {
-        it->second = std::move(value);
-      } else {
-        CHECK(!key.empty());
-        buffer_.emplace(std::move(key), std::move(value));
-      }
-      if (promise) {
-        buffer_promises_.push_back(std::move(promise));
-      }
-      cnt_++;
-      do_flush(false /*force*/);
-    }
-
-    void set_all(FlatHashMap<string, string> key_values, Promise<Unit> promise) {
-      do_flush(true /*force*/);
-      kv_->set_all(key_values);
-      promise.set_value(Unit());
-    }
-
-    void erase(string key, Promise<Unit> promise) {
-      auto it = buffer_.find(key);
-      if (it != buffer_.end()) {
-        it->second = optional<string>();
-      } else {
-        CHECK(!key.empty());
-        buffer_.emplace(std::move(key), optional<string>());
-      }
-      if (promise) {
-        buffer_promises_.push_back(std::move(promise));
-      }
-      cnt_++;
-      do_flush(false /*force*/);
-    }
-
-    void erase_by_prefix(string key_prefix, Promise<Unit> promise) {
-      do_flush(true /*force*/);
-      kv_->erase_by_prefix(key_prefix);
-      promise.set_value(Unit());
-    }
-
-    void get(const string &key, Promise<string> promise) {
-      auto it = buffer_.find(key);
-      if (it != buffer_.end()) {
-        return promise.set_value(it->second ? it->second.value() : "");
-      }
-      promise.set_value(kv_->get(key));
-    }
-
-    void close(Promise<Unit> promise) {
-      do_flush(true /*force*/);
-      kv_safe_.reset();
-      kv_ = nullptr;
-      stop();
-      promise.set_value(Unit());
-    }
-
-   private:
-    std::shared_ptr<SqliteKeyValueSafe> kv_safe_;
-    SqliteKeyValue *kv_ = nullptr;
-
-    static constexpr double MAX_PENDING_QUERIES_DELAY = 0.01;
-    static constexpr size_t MAX_PENDING_QUERIES_COUNT = 100;
-    FlatHashMap<string, optional<string>> buffer_;
-    vector<Promise<Unit>> buffer_promises_;
-    size_t cnt_ = 0;
-
-    double wakeup_at_ = 0;
-    void do_flush(bool force) {
-      if (buffer_.empty()) {
-        return;
-      }
-
-      if (!force) {
-        auto now = Time::now_cached();
-        if (wakeup_at_ == 0) {
-          wakeup_at_ = now + MAX_PENDING_QUERIES_DELAY;
-        }
-        if (now < wakeup_at_ && cnt_ < MAX_PENDING_QUERIES_COUNT) {
-          set_timeout_at(wakeup_at_);
-          return;
-        }
-      }
-
-      wakeup_at_ = 0;
-      cnt_ = 0;
-
-      kv_->begin_write_transaction().ensure();
-      for (auto &it : buffer_) {
-        if (it.second) {
-          kv_->set(it.first, it.second.value());
-        } else {
-          kv_->erase(it.first);
-        }
-      }
-      kv_->commit_transaction().ensure();
-      buffer_.clear();
-      set_promises(buffer_promises_);
-    }
-
-    void timeout_expired() final {
-      do_flush(false /*force*/);
-    }
-
-    void start_up() final {
-      kv_ = &kv_safe_->get();
-    }
-  };
-  ActorOwn<Impl> impl_;
-};
-
-unique_ptr<SqliteKeyValueAsyncInterface> create_sqlite_key_value_async(std::shared_ptr<SqliteKeyValueSafe> kv,
-                                                                       int32 scheduler_id) {
-  return td::make_unique<SqliteKeyValueAsync>(std::move(kv), scheduler_id);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteKeyValueAsync.h b/third-party/td/td/tddb/td/db/SqliteKeyValueAsync.h
deleted file mode 100644
index ef69e04046..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteKeyValueAsync.h
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/SqliteKeyValueSafe.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Promise.h"
-
-#include <memory>
-
-namespace td {
-
-class SqliteKeyValueAsyncInterface {
- public:
-  virtual ~SqliteKeyValueAsyncInterface() = default;
-
-  virtual void set(string key, string value, Promise<Unit> promise) = 0;
-
-  virtual void set_all(FlatHashMap<string, string> key_values, Promise<Unit> promise) = 0;
-
-  virtual void erase(string key, Promise<Unit> promise) = 0;
-
-  virtual void erase_by_prefix(string key_prefix, Promise<Unit> promise) = 0;
-
-  virtual void get(string key, Promise<string> promise) = 0;
-
-  virtual void close(Promise<Unit> promise) = 0;
-};
-
-unique_ptr<SqliteKeyValueAsyncInterface> create_sqlite_key_value_async(std::shared_ptr<SqliteKeyValueSafe> kv,
-                                                                       int32 scheduler_id = 1);
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteKeyValueSafe.h b/third-party/td/td/tddb/td/db/SqliteKeyValueSafe.h
deleted file mode 100644
index 28788bc446..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteKeyValueSafe.h
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteKeyValue.h"
-
-#include "td/actor/SchedulerLocalStorage.h"
-
-#include "td/utils/common.h"
-
-#include <memory>
-
-namespace td {
-
-class SqliteKeyValueSafe {
- public:
-  SqliteKeyValueSafe(string name, std::shared_ptr<SqliteConnectionSafe> safe_connection)
-      : lsls_kv_([name = std::move(name), safe_connection = std::move(safe_connection)] {
-        SqliteKeyValue kv;
-        kv.init_with_connection(safe_connection->get().clone(), name).ensure();
-        return kv;
-      }) {
-  }
-  SqliteKeyValue &get() {
-    return lsls_kv_.get();
-  }
-  void close() {
-    lsls_kv_.clear_values();
-  }
-
- private:
-  LazySchedulerLocalStorage<SqliteKeyValue> lsls_kv_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteStatement.cpp b/third-party/td/td/tddb/td/db/SqliteStatement.cpp
deleted file mode 100644
index f5cf15fd51..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteStatement.cpp
+++ /dev/null
@@ -1,205 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/SqliteStatement.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-
-#include "sqlite/sqlite3.h"
-
-namespace td {
-
-int VERBOSITY_NAME(sqlite) = VERBOSITY_NAME(DEBUG) + 10;
-
-namespace {
-int printExplainQueryPlan(StringBuilder &sb, tdsqlite3_stmt *pStmt) {
-  const char *zSql = tdsqlite3_sql(pStmt);
-  if (zSql == nullptr) {
-    return SQLITE_ERROR;
-  }
-
-  sb << "Explain query " << zSql;
-  char *zExplain = tdsqlite3_mprintf("EXPLAIN QUERY PLAN %s", zSql);
-  if (zExplain == nullptr) {
-    return SQLITE_NOMEM;
-  }
-
-  tdsqlite3_stmt *pExplain; /* Compiled EXPLAIN QUERY PLAN command */
-  int rc = tdsqlite3_prepare_v2(tdsqlite3_db_handle(pStmt), zExplain, -1, &pExplain, nullptr);
-  tdsqlite3_free(zExplain);
-  if (rc != SQLITE_OK) {
-    return rc;
-  }
-
-  while (SQLITE_ROW == tdsqlite3_step(pExplain)) {
-    int iSelectid = tdsqlite3_column_int(pExplain, 0);
-    int iOrder = tdsqlite3_column_int(pExplain, 1);
-    int iFrom = tdsqlite3_column_int(pExplain, 2);
-    const char *zDetail = reinterpret_cast<const char *>(tdsqlite3_column_text(pExplain, 3));
-
-    sb << '\n' << iSelectid << ' ' << iOrder << ' ' << iFrom << ' ' << zDetail;
-  }
-
-  return tdsqlite3_finalize(pExplain);
-}
-}  // namespace
-
-SqliteStatement::SqliteStatement(tdsqlite3_stmt *stmt, std::shared_ptr<detail::RawSqliteDb> db)
-    : stmt_(stmt), db_(std::move(db)) {
-  CHECK(stmt != nullptr);
-}
-SqliteStatement::~SqliteStatement() = default;
-
-Result<string> SqliteStatement::explain() {
-  if (empty()) {
-    return Status::Error("No statement");
-  }
-  auto tmp = StackAllocator::alloc(10000);
-  StringBuilder sb(tmp.as_slice());
-  auto code = printExplainQueryPlan(sb, stmt_.get());
-  if (code != SQLITE_OK) {
-    return last_error();
-  }
-  if (sb.is_error()) {
-    return Status::Error("StringBuilder buffer overflow");
-  }
-  return sb.as_cslice().str();
-}
-Status SqliteStatement::bind_blob(int id, Slice blob) {
-  auto rc = tdsqlite3_bind_blob(stmt_.get(), id, blob.data(), static_cast<int>(blob.size()), nullptr);
-  if (rc != SQLITE_OK) {
-    return last_error();
-  }
-  return Status::OK();
-}
-Status SqliteStatement::bind_string(int id, Slice str) {
-  auto rc = tdsqlite3_bind_text(stmt_.get(), id, str.data(), static_cast<int>(str.size()), nullptr);
-  if (rc != SQLITE_OK) {
-    return last_error();
-  }
-  return Status::OK();
-}
-
-Status SqliteStatement::bind_int32(int id, int32 value) {
-  auto rc = tdsqlite3_bind_int(stmt_.get(), id, value);
-  if (rc != SQLITE_OK) {
-    return last_error();
-  }
-  return Status::OK();
-}
-Status SqliteStatement::bind_int64(int id, int64 value) {
-  auto rc = tdsqlite3_bind_int64(stmt_.get(), id, value);
-  if (rc != SQLITE_OK) {
-    return last_error();
-  }
-  return Status::OK();
-}
-Status SqliteStatement::bind_null(int id) {
-  auto rc = tdsqlite3_bind_null(stmt_.get(), id);
-  if (rc != SQLITE_OK) {
-    return last_error();
-  }
-  return Status::OK();
-}
-
-StringBuilder &operator<<(StringBuilder &sb, SqliteStatement::Datatype type) {
-  using Datatype = SqliteStatement::Datatype;
-  switch (type) {
-    case Datatype::Integer:
-      return sb << "Integer";
-    case Datatype::Float:
-      return sb << "Float";
-    case Datatype::Blob:
-      return sb << "Blob";
-    case Datatype::Null:
-      return sb << "Null";
-    case Datatype::Text:
-      return sb << "Text";
-  }
-  UNREACHABLE();
-  return sb;
-}
-Slice SqliteStatement::view_blob(int id) {
-  LOG_IF(ERROR, view_datatype(id) != Datatype::Blob) << view_datatype(id);
-  auto *data = tdsqlite3_column_blob(stmt_.get(), id);
-  auto size = tdsqlite3_column_bytes(stmt_.get(), id);
-  if (data == nullptr) {
-    return Slice();
-  }
-  return Slice(static_cast<const char *>(data), size);
-}
-Slice SqliteStatement::view_string(int id) {
-  LOG_IF(ERROR, view_datatype(id) != Datatype::Text) << view_datatype(id);
-  auto *data = tdsqlite3_column_text(stmt_.get(), id);
-  auto size = tdsqlite3_column_bytes(stmt_.get(), id);
-  if (data == nullptr) {
-    return Slice();
-  }
-  return Slice(data, size);
-}
-int32 SqliteStatement::view_int32(int id) {
-  LOG_IF(ERROR, view_datatype(id) != Datatype::Integer) << view_datatype(id);
-  return tdsqlite3_column_int(stmt_.get(), id);
-}
-int64 SqliteStatement::view_int64(int id) {
-  LOG_IF(ERROR, view_datatype(id) != Datatype::Integer) << view_datatype(id);
-  return tdsqlite3_column_int64(stmt_.get(), id);
-}
-SqliteStatement::Datatype SqliteStatement::view_datatype(int id) {
-  auto type = tdsqlite3_column_type(stmt_.get(), id);
-  switch (type) {
-    case SQLITE_INTEGER:
-      return Datatype::Integer;
-    case SQLITE_FLOAT:
-      return Datatype::Float;
-    case SQLITE_BLOB:
-      return Datatype::Blob;
-    case SQLITE_NULL:
-      return Datatype::Null;
-    case SQLITE3_TEXT:
-      return Datatype::Text;
-    default:
-      UNREACHABLE();
-  }
-}
-
-void SqliteStatement::reset() {
-  tdsqlite3_reset(stmt_.get());
-  state_ = State::Start;
-}
-
-Status SqliteStatement::step() {
-  if (state_ == State::Finish) {
-    return Status::Error("One has to reset statement");
-  }
-  VLOG(sqlite) << "Start step " << tag("query", tdsqlite3_sql(stmt_.get())) << tag("statement", stmt_.get())
-               << tag("database", db_.get());
-  auto rc = tdsqlite3_step(stmt_.get());
-  VLOG(sqlite) << "Finish step with response " << (rc == SQLITE_ROW ? "ROW" : (rc == SQLITE_DONE ? "DONE" : "ERROR"));
-  if (rc == SQLITE_ROW) {
-    state_ = State::HaveRow;
-    return Status::OK();
-  }
-
-  state_ = State::Finish;
-  if (rc == SQLITE_DONE) {
-    return Status::OK();
-  }
-  return last_error();
-}
-
-void SqliteStatement::StmtDeleter::operator()(tdsqlite3_stmt *stmt) {
-  tdsqlite3_finalize(stmt);
-}
-
-Status SqliteStatement::last_error() {
-  return db_->last_error();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/SqliteStatement.h b/third-party/td/td/tddb/td/db/SqliteStatement.h
deleted file mode 100644
index bd838f7b7b..0000000000
--- a/third-party/td/td/tddb/td/db/SqliteStatement.h
+++ /dev/null
@@ -1,88 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/detail/RawSqliteDb.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-struct tdsqlite3;
-struct tdsqlite3_stmt;
-
-namespace td {
-
-extern int VERBOSITY_NAME(sqlite);
-
-class SqliteStatement {
- public:
-  SqliteStatement() = default;
-  SqliteStatement(const SqliteStatement &) = delete;
-  SqliteStatement &operator=(const SqliteStatement &) = delete;
-  SqliteStatement(SqliteStatement &&) = default;
-  SqliteStatement &operator=(SqliteStatement &&) = default;
-  ~SqliteStatement();
-
-  Status bind_blob(int id, Slice blob) TD_WARN_UNUSED_RESULT;
-  Status bind_string(int id, Slice str) TD_WARN_UNUSED_RESULT;
-  Status bind_int32(int id, int32 value) TD_WARN_UNUSED_RESULT;
-  Status bind_int64(int id, int64 value) TD_WARN_UNUSED_RESULT;
-  Status bind_null(int id) TD_WARN_UNUSED_RESULT;
-  Status step() TD_WARN_UNUSED_RESULT;
-  Slice view_string(int id) TD_WARN_UNUSED_RESULT;
-  Slice view_blob(int id) TD_WARN_UNUSED_RESULT;
-  int32 view_int32(int id) TD_WARN_UNUSED_RESULT;
-  int64 view_int64(int id) TD_WARN_UNUSED_RESULT;
-  enum class Datatype { Integer, Float, Blob, Null, Text };
-  Datatype view_datatype(int id);
-
-  Result<string> explain();
-
-  bool can_step() const {
-    return state_ != State::Finish;
-  }
-  bool has_row() const {
-    return state_ == State::HaveRow;
-  }
-  bool empty() const {
-    return !stmt_;
-  }
-
-  void reset();
-
-  auto guard() {
-    return ScopeExit{} + [this] {
-      this->reset();
-    };
-  }
-
-  // TODO get row
-
- private:
-  friend class SqliteDb;
-  SqliteStatement(tdsqlite3_stmt *stmt, std::shared_ptr<detail::RawSqliteDb> db);
-
-  class StmtDeleter {
-   public:
-    void operator()(tdsqlite3_stmt *stmt);
-  };
-
-  enum class State { Start, HaveRow, Finish };
-  State state_ = State::Start;
-
-  std::unique_ptr<tdsqlite3_stmt, StmtDeleter> stmt_;
-  std::shared_ptr<detail::RawSqliteDb> db_;
-
-  Status last_error();
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/TQueue.cpp b/third-party/td/td/tddb/td/db/TQueue.cpp
deleted file mode 100644
index 61f8c0a9df..0000000000
--- a/third-party/td/td/tddb/td/db/TQueue.cpp
+++ /dev/null
@@ -1,613 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/TQueue.h"
-
-#include "td/db/binlog/Binlog.h"
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/binlog/BinlogInterface.h"
-
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-
-#include <set>
-
-namespace td {
-
-using EventId = TQueue::EventId;
-
-EventId::EventId() {
-}
-
-Result<EventId> EventId::from_int32(int32 id) {
-  if (!is_valid_id(id)) {
-    return Status::Error("Invalid ID");
-  }
-  return EventId(id);
-}
-
-bool EventId::is_valid() const {
-  return !empty() && is_valid_id(id_);
-}
-
-int32 EventId::value() const {
-  return id_;
-}
-
-Result<EventId> EventId::next() const {
-  return from_int32(id_ + 1);
-}
-
-Result<EventId> EventId::advance(size_t offset) const {
-  TRY_RESULT(new_id, narrow_cast_safe<int32>(id_ + offset));
-  return from_int32(new_id);
-}
-
-bool EventId::empty() const {
-  return id_ == 0;
-}
-
-bool EventId::operator==(const EventId &other) const {
-  return id_ == other.id_;
-}
-
-bool EventId::operator!=(const EventId &other) const {
-  return !(*this == other);
-}
-
-bool EventId::operator<(const EventId &other) const {
-  return id_ < other.id_;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, EventId id) {
-  return string_builder << "EventId{" << id.value() << "}";
-}
-
-EventId::EventId(int32 id) : id_(id) {
-  CHECK(is_valid_id(id));
-}
-
-bool EventId::is_valid_id(int32 id) {
-  return 0 <= id && id < MAX_ID;
-}
-
-class TQueueImpl final : public TQueue {
-  static constexpr size_t MAX_EVENT_LENGTH = 65536 * 8;
-  static constexpr size_t MAX_QUEUE_EVENTS = 100000;
-  static constexpr size_t MAX_TOTAL_EVENT_LENGTH = 1 << 27;
-
- public:
-  void set_callback(unique_ptr<StorageCallback> callback) final {
-    callback_ = std::move(callback);
-  }
-  unique_ptr<StorageCallback> extract_callback() final {
-    return std::move(callback_);
-  }
-
-  bool do_push(QueueId queue_id, RawEvent &&raw_event) final {
-    CHECK(raw_event.event_id.is_valid());
-    // raw_event.data can be empty when replaying binlog
-    if (raw_event.data.size() > MAX_EVENT_LENGTH || queue_id == 0) {
-      return false;
-    }
-    auto &q = queues_[queue_id];
-    if (q.events.size() >= MAX_QUEUE_EVENTS || q.total_event_length > MAX_TOTAL_EVENT_LENGTH - raw_event.data.size() ||
-        raw_event.expires_at <= 0) {
-      return false;
-    }
-    auto event_id = raw_event.event_id;
-    if (event_id < q.tail_id) {
-      return false;
-    }
-
-    if (!q.events.empty()) {
-      auto it = q.events.end();
-      --it;
-      if (it->second.data.empty()) {
-        if (callback_ != nullptr && it->second.log_event_id != 0) {
-          callback_->pop(it->second.log_event_id);
-        }
-        q.events.erase(it);
-      }
-    }
-    if (q.events.empty() && !raw_event.data.empty()) {
-      schedule_queue_gc(queue_id, q, raw_event.expires_at);
-    }
-
-    if (raw_event.log_event_id == 0 && callback_ != nullptr) {
-      raw_event.log_event_id = callback_->push(queue_id, raw_event);
-    }
-    q.tail_id = event_id.next().move_as_ok();
-    q.total_event_length += raw_event.data.size();
-    q.events.emplace(event_id, std::move(raw_event));
-    return true;
-  }
-
-  Result<EventId> push(QueueId queue_id, string data, int32 expires_at, int64 extra, EventId hint_new_id) final {
-    if (data.empty()) {
-      return Status::Error("Data is empty");
-    }
-    if (data.size() > MAX_EVENT_LENGTH) {
-      return Status::Error("Data is too big");
-    }
-    if (queue_id == 0) {
-      return Status::Error("Queue identifier is invalid");
-    }
-
-    auto &q = queues_[queue_id];
-    if (q.events.size() >= MAX_QUEUE_EVENTS) {
-      return Status::Error("Queue is full");
-    }
-    if (q.total_event_length > MAX_TOTAL_EVENT_LENGTH - data.size()) {
-      return Status::Error("Queue size is too big");
-    }
-    if (expires_at <= 0) {
-      return Status::Error("Failed to add already expired event");
-    }
-    EventId event_id;
-    while (true) {
-      if (q.tail_id.empty()) {
-        if (hint_new_id.empty()) {
-          q.tail_id = EventId::from_int32(
-                          Random::fast(2 * max(static_cast<int>(MAX_QUEUE_EVENTS), 1000000) + 1, EventId::MAX_ID / 2))
-                          .move_as_ok();
-        } else {
-          q.tail_id = hint_new_id;
-        }
-      }
-      event_id = q.tail_id;
-      CHECK(event_id.is_valid());
-      if (event_id.next().is_ok()) {
-        break;
-      }
-      for (auto it = q.events.begin(); it != q.events.end();) {
-        pop(q, queue_id, it, {});
-      }
-      q.tail_id = EventId();
-      CHECK(hint_new_id.next().is_ok());
-    }
-
-    RawEvent raw_event;
-    raw_event.event_id = event_id;
-    raw_event.data = std::move(data);
-    raw_event.expires_at = expires_at;
-    raw_event.extra = extra;
-    bool is_added = do_push(queue_id, std::move(raw_event));
-    CHECK(is_added);
-    return event_id;
-  }
-
-  EventId get_head(QueueId queue_id) const final {
-    auto it = queues_.find(queue_id);
-    if (it == queues_.end()) {
-      return EventId();
-    }
-    return get_queue_head(it->second);
-  }
-
-  EventId get_tail(QueueId queue_id) const final {
-    auto it = queues_.find(queue_id);
-    if (it == queues_.end()) {
-      return EventId();
-    }
-    auto &q = it->second;
-    return q.tail_id;
-  }
-
-  void forget(QueueId queue_id, EventId event_id) final {
-    auto q_it = queues_.find(queue_id);
-    if (q_it == queues_.end()) {
-      return;
-    }
-    auto &q = q_it->second;
-    auto it = q.events.find(event_id);
-    if (it == q.events.end()) {
-      return;
-    }
-    pop(q, queue_id, it, q.tail_id);
-  }
-
-  std::map<EventId, RawEvent> clear(QueueId queue_id, size_t keep_count) final {
-    auto queue_it = queues_.find(queue_id);
-    if (queue_it == queues_.end()) {
-      return {};
-    }
-    auto &q = queue_it->second;
-    auto size = get_size(q);
-    if (size <= keep_count) {
-      return {};
-    }
-
-    auto start_time = Time::now();
-    auto total_event_length = q.total_event_length;
-
-    auto end_it = q.events.end();
-    for (size_t i = 0; i < keep_count; i++) {
-      --end_it;
-    }
-    if (keep_count == 0) {
-      --end_it;
-      auto &event = end_it->second;
-      if (callback_ == nullptr || event.log_event_id == 0) {
-        ++end_it;
-      } else if (!event.data.empty()) {
-        clear_event_data(q, event);
-        callback_->push(queue_id, event);
-      }
-    }
-
-    auto collect_deleted_event_ids_time = 0.0;
-    if (callback_ != nullptr) {
-      vector<uint64> deleted_log_event_ids;
-      deleted_log_event_ids.reserve(size - keep_count);
-      for (auto it = q.events.begin(); it != end_it; ++it) {
-        auto &event = it->second;
-        if (event.log_event_id != 0) {
-          deleted_log_event_ids.push_back(event.log_event_id);
-        }
-      }
-      collect_deleted_event_ids_time = Time::now() - start_time;
-      callback_->pop_batch(std::move(deleted_log_event_ids));
-    }
-    auto callback_clear_time = Time::now() - start_time;
-
-    std::map<EventId, RawEvent> deleted_events;
-    if (keep_count > size / 2) {
-      for (auto it = q.events.begin(); it != end_it;) {
-        q.total_event_length -= it->second.data.size();
-        bool is_inserted = deleted_events.emplace(it->first, std::move(it->second)).second;
-        CHECK(is_inserted);
-        it = q.events.erase(it);
-      }
-    } else {
-      q.total_event_length = 0;
-      for (auto it = end_it; it != q.events.end();) {
-        q.total_event_length += it->second.data.size();
-        bool is_inserted = deleted_events.emplace(it->first, std::move(it->second)).second;
-        CHECK(is_inserted);
-        it = q.events.erase(it);
-      }
-      std::swap(deleted_events, q.events);
-    }
-
-    auto clear_time = Time::now() - start_time;
-    if (clear_time > 0.02) {
-      LOG(WARNING) << "Cleared " << (size - keep_count) << " TQueue events with total size "
-                   << (total_event_length - q.total_event_length) << " in " << clear_time - callback_clear_time
-                   << " seconds, collected their identifiers in " << collect_deleted_event_ids_time
-                   << " seconds, and deleted them from callback in "
-                   << callback_clear_time - collect_deleted_event_ids_time << " seconds";
-    }
-    return deleted_events;
-  }
-
-  Result<size_t> get(QueueId queue_id, EventId from_id, bool forget_previous, int32 unix_time_now,
-                     MutableSpan<Event> &result_events) final {
-    auto it = queues_.find(queue_id);
-    if (it == queues_.end()) {
-      result_events.truncate(0);
-      return 0;
-    }
-    auto &q = it->second;
-    // Some sanity checks
-    if (from_id.value() > q.tail_id.value() + 10) {
-      return Status::Error("Specified from_id is in the future");
-    }
-    if (from_id.value() < get_queue_head(q).value() - static_cast<int32>(MAX_QUEUE_EVENTS)) {
-      return Status::Error("Specified from_id is in the past");
-    }
-
-    do_get(queue_id, q, from_id, forget_previous, unix_time_now, result_events);
-    return get_size(q);
-  }
-
-  std::pair<int64, bool> run_gc(int32 unix_time_now) final {
-    int64 deleted_events = 0;
-    auto max_finish_time = Time::now() + 0.05;
-    int64 counter = 0;
-    while (!queue_gc_at_.empty()) {
-      auto it = queue_gc_at_.begin();
-      if (it->first >= unix_time_now) {
-        break;
-      }
-      auto queue_id = it->second;
-      auto &q = queues_[queue_id];
-      CHECK(q.gc_at == it->first);
-      int32 new_gc_at = 0;
-
-      if (!q.events.empty()) {
-        size_t size_before = get_size(q);
-        for (auto event_it = q.events.begin(); event_it != q.events.end();) {
-          auto &event = event_it->second;
-          if ((++counter & 128) == 0 && Time::now() >= max_finish_time) {
-            if (new_gc_at == 0) {
-              new_gc_at = event.expires_at;
-            }
-            break;
-          }
-          if (event.expires_at < unix_time_now || event.data.empty()) {
-            pop(q, queue_id, event_it, q.tail_id);
-          } else {
-            if (new_gc_at != 0) {
-              break;
-            }
-            new_gc_at = event.expires_at;
-            ++event_it;
-          }
-        }
-        size_t size_after = get_size(q);
-        CHECK(size_after <= size_before);
-        deleted_events += size_before - size_after;
-      }
-      schedule_queue_gc(queue_id, q, new_gc_at);
-      if (Time::now() >= max_finish_time) {
-        return {deleted_events, false};
-      }
-    }
-    return {deleted_events, true};
-  }
-
-  size_t get_size(QueueId queue_id) const final {
-    auto it = queues_.find(queue_id);
-    if (it == queues_.end()) {
-      return 0;
-    }
-    return get_size(it->second);
-  }
-
-  void close(Promise<> promise) final {
-    if (callback_ != nullptr) {
-      callback_->close(std::move(promise));
-      callback_ = nullptr;
-    }
-  }
-
- private:
-  struct Queue {
-    EventId tail_id;
-    std::map<EventId, RawEvent> events;
-    size_t total_event_length = 0;
-    int32 gc_at = 0;
-  };
-
-  FlatHashMap<QueueId, Queue> queues_;
-  std::set<std::pair<int32, QueueId>> queue_gc_at_;
-  unique_ptr<StorageCallback> callback_;
-
-  static EventId get_queue_head(const Queue &q) {
-    if (q.events.empty()) {
-      return q.tail_id;
-    }
-    return q.events.begin()->first;
-  }
-
-  static size_t get_size(const Queue &q) {
-    if (q.events.empty()) {
-      return 0;
-    }
-
-    return q.events.size() - (q.events.rbegin()->second.data.empty() ? 1 : 0);
-  }
-
-  void pop(Queue &q, QueueId queue_id, std::map<EventId, RawEvent>::iterator &it, EventId tail_id) {
-    auto &event = it->second;
-    if (callback_ == nullptr || event.log_event_id == 0) {
-      remove_event(q, it);
-      return;
-    }
-
-    if (event.event_id.next().ok() == tail_id) {
-      if (!event.data.empty()) {
-        clear_event_data(q, event);
-        callback_->push(queue_id, event);
-      }
-      ++it;
-    } else {
-      callback_->pop(event.log_event_id);
-      remove_event(q, it);
-    }
-  }
-
-  static void remove_event(Queue &q, std::map<EventId, RawEvent>::iterator &it) {
-    q.total_event_length -= it->second.data.size();
-    it = q.events.erase(it);
-  }
-
-  static void clear_event_data(Queue &q, RawEvent &event) {
-    q.total_event_length -= event.data.size();
-    event.data = {};
-  }
-
-  void do_get(QueueId queue_id, Queue &q, EventId from_id, bool forget_previous, int32 unix_time_now,
-              MutableSpan<Event> &result_events) {
-    if (forget_previous) {
-      for (auto it = q.events.begin(); it != q.events.end() && it->first < from_id;) {
-        pop(q, queue_id, it, q.tail_id);
-      }
-    }
-
-    size_t ready_n = 0;
-    for (auto it = q.events.lower_bound(from_id); it != q.events.end();) {
-      auto &event = it->second;
-      if (event.expires_at < unix_time_now || event.data.empty()) {
-        pop(q, queue_id, it, q.tail_id);
-      } else {
-        CHECK(!(event.event_id < from_id));
-        if (ready_n == result_events.size()) {
-          break;
-        }
-
-        auto &to = result_events[ready_n];
-        to.data = event.data;
-        to.id = event.event_id;
-        to.expires_at = event.expires_at;
-        to.extra = event.extra;
-        ready_n++;
-        ++it;
-      }
-    }
-
-    result_events.truncate(ready_n);
-  }
-
-  void schedule_queue_gc(QueueId queue_id, Queue &q, int32 gc_at) {
-    if (q.gc_at != 0) {
-      bool is_deleted = queue_gc_at_.erase({q.gc_at, queue_id}) > 0;
-      CHECK(is_deleted);
-    }
-    q.gc_at = gc_at;
-    if (q.gc_at != 0) {
-      bool is_inserted = queue_gc_at_.emplace(gc_at, queue_id).second;
-      CHECK(is_inserted);
-    }
-  }
-};
-
-unique_ptr<TQueue> TQueue::create() {
-  return make_unique<TQueueImpl>();
-}
-
-struct TQueueLogEvent final : public Storer {
-  int64 queue_id;
-  int32 event_id;
-  int32 expires_at;
-  Slice data;
-  int64 extra;
-
-  template <class StorerT>
-  void store(StorerT &&storer) const {
-    using td::store;
-    store(queue_id, storer);
-    store(event_id, storer);
-    store(expires_at, storer);
-    store(data, storer);
-    if (extra != 0) {
-      store(extra, storer);
-    }
-  }
-
-  template <class ParserT>
-  void parse(ParserT &&parser, int32 has_extra) {
-    using td::parse;
-    parse(queue_id, parser);
-    parse(event_id, parser);
-    parse(expires_at, parser);
-    data = parser.template fetch_string<Slice>();
-    if (has_extra == 0) {
-      extra = 0;
-    } else {
-      parse(extra, parser);
-    }
-  }
-
-  size_t size() const final {
-    TlStorerCalcLength storer;
-    store(storer);
-    return storer.get_length();
-  }
-
-  size_t store(uint8 *ptr) const final {
-    TlStorerUnsafe storer(ptr);
-    store(storer);
-    return static_cast<size_t>(storer.get_buf() - ptr);
-  }
-};
-
-template <class BinlogT>
-uint64 TQueueBinlog<BinlogT>::push(QueueId queue_id, const RawEvent &event) {
-  TQueueLogEvent log_event;
-  log_event.queue_id = queue_id;
-  log_event.event_id = event.event_id.value();
-  log_event.expires_at = event.expires_at;
-  log_event.data = event.data;
-  log_event.extra = event.extra;
-  auto magic = BINLOG_EVENT_TYPE + (log_event.extra != 0);
-  if (event.log_event_id == 0) {
-    return binlog_->add(magic, log_event);
-  }
-  binlog_->rewrite(event.log_event_id, magic, log_event);
-  return event.log_event_id;
-}
-
-template <class BinlogT>
-void TQueueBinlog<BinlogT>::pop(uint64 log_event_id) {
-  binlog_->erase(log_event_id);
-}
-
-template <class BinlogT>
-void TQueueBinlog<BinlogT>::pop_batch(std::vector<uint64> log_event_ids) {
-  binlog_->erase_batch(std::move(log_event_ids));
-}
-
-template <class BinlogT>
-Status TQueueBinlog<BinlogT>::replay(const BinlogEvent &binlog_event, TQueue &q) const {
-  TQueueLogEvent event;
-  TlParser parser(binlog_event.get_data());
-  int32 has_extra = binlog_event.type_ - BINLOG_EVENT_TYPE;
-  if (has_extra != 0 && has_extra != 1) {
-    return Status::Error("Wrong magic");
-  }
-  event.parse(parser, has_extra);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-  TRY_RESULT(event_id, EventId::from_int32(event.event_id));
-  RawEvent raw_event;
-  raw_event.log_event_id = binlog_event.id_;
-  raw_event.event_id = event_id;
-  raw_event.expires_at = event.expires_at;
-  raw_event.data = event.data.str();
-  raw_event.extra = event.extra;
-  if (!q.do_push(event.queue_id, std::move(raw_event))) {
-    return Status::Error("Failed to add event");
-  }
-  return Status::OK();
-}
-
-template <class BinlogT>
-void TQueueBinlog<BinlogT>::close(Promise<> promise) {
-  binlog_->close(std::move(promise));
-}
-
-template class TQueueBinlog<BinlogInterface>;
-template class TQueueBinlog<Binlog>;
-
-uint64 TQueueMemoryStorage::push(QueueId queue_id, const RawEvent &event) {
-  auto log_event_id = event.log_event_id == 0 ? next_log_event_id_++ : event.log_event_id;
-  events_[log_event_id] = std::make_pair(queue_id, event);
-  return log_event_id;
-}
-
-void TQueueMemoryStorage::pop(uint64 log_event_id) {
-  events_.erase(log_event_id);
-}
-
-void TQueueMemoryStorage::replay(TQueue &q) const {
-  for (auto &e : events_) {
-    auto x = e.second;
-    x.second.log_event_id = e.first;
-    bool is_added = q.do_push(x.first, std::move(x.second));
-    CHECK(is_added);
-  }
-}
-void TQueueMemoryStorage::close(Promise<> promise) {
-  events_.clear();
-  promise.set_value({});
-}
-
-void TQueue::StorageCallback::pop_batch(std::vector<uint64> log_event_ids) {
-  for (auto id : log_event_ids) {
-    pop(id);
-  }
-}
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/TQueue.h b/third-party/td/td/tddb/td/db/TQueue.h
deleted file mode 100644
index edd940be1c..0000000000
--- a/third-party/td/td/tddb/td/db/TQueue.h
+++ /dev/null
@@ -1,157 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <map>
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class TQueue {
- public:
-  class EventId {
-   public:
-    static constexpr int32 MAX_ID = 2000000000;
-
-    EventId();
-
-    static Result<EventId> from_int32(int32 id);
-
-    bool is_valid() const;
-
-    int32 value() const;
-
-    Result<EventId> next() const;
-
-    Result<EventId> advance(size_t offset) const;
-
-    bool empty() const;
-
-    bool operator==(const EventId &other) const;
-    bool operator!=(const EventId &other) const;
-    bool operator<(const EventId &other) const;
-
-   private:
-    int32 id_{0};
-
-    explicit EventId(int32 id);
-
-    static bool is_valid_id(int32 id);
-  };
-
-  struct Event {
-    EventId id;
-    int32 expires_at{0};
-    Slice data;
-    int64 extra{0};
-  };
-
-  struct RawEvent {
-    uint64 log_event_id{0};
-    EventId event_id;
-    int32 expires_at{0};
-    string data;
-    int64 extra{0};
-  };
-
-  using QueueId = int64;
-
-  class StorageCallback {
-   public:
-    using QueueId = TQueue::QueueId;
-    using RawEvent = TQueue::RawEvent;
-
-    StorageCallback() = default;
-    StorageCallback(const StorageCallback &) = delete;
-    StorageCallback &operator=(const StorageCallback &) = delete;
-    StorageCallback(StorageCallback &&) = delete;
-    StorageCallback &operator=(StorageCallback &&) = delete;
-    virtual ~StorageCallback() = default;
-
-    virtual uint64 push(QueueId queue_id, const RawEvent &event) = 0;
-    virtual void pop(uint64 log_event_id) = 0;
-    virtual void close(Promise<> promise) = 0;
-    virtual void pop_batch(std::vector<uint64> log_event_ids);
-  };
-
-  static unique_ptr<TQueue> create();
-
-  TQueue() = default;
-  TQueue(const TQueue &) = delete;
-  TQueue &operator=(const TQueue &) = delete;
-  TQueue(TQueue &&) = delete;
-  TQueue &operator=(TQueue &&) = delete;
-
-  virtual ~TQueue() = default;
-
-  virtual void set_callback(unique_ptr<StorageCallback> callback) = 0;
-  virtual unique_ptr<StorageCallback> extract_callback() = 0;
-
-  virtual bool do_push(QueueId queue_id, RawEvent &&raw_event) = 0;
-
-  virtual Result<EventId> push(QueueId queue_id, string data, int32 expires_at, int64 extra, EventId hint_new_id) = 0;
-
-  virtual void forget(QueueId queue_id, EventId event_id) = 0;
-
-  virtual std::map<EventId, RawEvent> clear(QueueId queue_id, size_t keep_count) = 0;
-
-  virtual EventId get_head(QueueId queue_id) const = 0;
-  virtual EventId get_tail(QueueId queue_id) const = 0;
-
-  virtual Result<size_t> get(QueueId queue_id, EventId from_id, bool forget_previous, int32 unix_time_now,
-                             MutableSpan<Event> &result_events) = 0;
-
-  virtual size_t get_size(QueueId queue_id) const = 0;
-
-  // returns number of deleted events and whether garbage collection was completed
-  virtual std::pair<int64, bool> run_gc(int32 unix_time_now) = 0;
-  virtual void close(Promise<> promise) = 0;
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, TQueue::EventId id);
-
-struct BinlogEvent;
-
-template <class BinlogT>
-class TQueueBinlog final : public TQueue::StorageCallback {
- public:
-  uint64 push(QueueId queue_id, const RawEvent &event) final;
-  void pop(uint64 log_event_id) final;
-  void pop_batch(std::vector<uint64> log_event_ids) final;
-  Status replay(const BinlogEvent &binlog_event, TQueue &q) const TD_WARN_UNUSED_RESULT;
-
-  void set_binlog(std::shared_ptr<BinlogT> binlog) {
-    binlog_ = std::move(binlog);
-  }
-  void close(Promise<> promise) final;
-
- private:
-  std::shared_ptr<BinlogT> binlog_;
-  static constexpr int32 BINLOG_EVENT_TYPE = 2314;
-};
-
-class TQueueMemoryStorage final : public TQueue::StorageCallback {
- public:
-  uint64 push(QueueId queue_id, const RawEvent &event) final;
-  void pop(uint64 log_event_id) final;
-  void replay(TQueue &q) const;
-  void close(Promise<> promise) final;
-
- private:
-  uint64 next_log_event_id_{1};
-  std::map<uint64, std::pair<QueueId, RawEvent>> events_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/TsSeqKeyValue.h b/third-party/td/td/tddb/td/db/TsSeqKeyValue.h
deleted file mode 100644
index c97432fcd5..0000000000
--- a/third-party/td/td/tddb/td/db/TsSeqKeyValue.h
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/SeqKeyValue.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/port/RwMutex.h"
-#include "td/utils/Slice.h"
-
-#include <utility>
-
-namespace td {
-
-class TsSeqKeyValue {
- public:
-  using SeqNo = SeqKeyValue::SeqNo;
-  TsSeqKeyValue() = default;
-  explicit TsSeqKeyValue(SeqKeyValue kv) : kv_(std::move(kv)) {
-  }
-
-  TsSeqKeyValue(TsSeqKeyValue &&) = default;
-  TsSeqKeyValue &operator=(TsSeqKeyValue &&) = default;
-  TsSeqKeyValue(const TsSeqKeyValue &) = delete;
-  TsSeqKeyValue &operator=(const TsSeqKeyValue &) = delete;
-  ~TsSeqKeyValue() = default;
-
-  SeqNo set(Slice key, Slice value) {
-    auto lock = rw_mutex_.lock_write();
-    return kv_.set(key, value);
-  }
-
-  std::pair<SeqNo, RwMutex::WriteLock> set_and_lock(Slice key, Slice value) {
-    auto lock = rw_mutex_.lock_write();
-    return std::make_pair(kv_.set(key, value), std::move(lock));
-  }
-
-  SeqNo erase(const string &key) {
-    auto lock = rw_mutex_.lock_write();
-    return kv_.erase(key);
-  }
-
-  SeqNo erase_batch(vector<string> keys) {
-    auto lock = rw_mutex_.lock_write();
-    return kv_.erase_batch(std::move(keys));
-  }
-
-  std::pair<SeqNo, RwMutex::WriteLock> erase_and_lock(const string &key) {
-    auto lock = rw_mutex_.lock_write();
-    return std::make_pair(kv_.erase(key), std::move(lock));
-  }
-
-  string get(const string &key) const {
-    auto lock = rw_mutex_.lock_read();
-    return kv_.get(key);
-  }
-
-  bool isset(const string &key) const {
-    auto lock = rw_mutex_.lock_read();
-    return kv_.isset(key);
-  }
-
-  size_t size() const {
-    return kv_.size();
-  }
-
-  FlatHashMap<string, string> get_all() const {
-    auto lock = rw_mutex_.lock_write();
-    return kv_.get_all();
-  }
-
-  // non-thread-safe method
-  SeqKeyValue &inner() {
-    return kv_;
-  }
-
-  auto lock() {
-    return rw_mutex_.lock_write();
-  }
-
- private:
-  mutable RwMutex rw_mutex_;
-  SeqKeyValue kv_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/Binlog.cpp b/third-party/td/td/tddb/td/db/binlog/Binlog.cpp
deleted file mode 100644
index 43c0e6e39d..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/Binlog.cpp
+++ /dev/null
@@ -1,775 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/binlog/Binlog.h"
-
-#include "td/db/binlog/detail/BinlogEventsBuffer.h"
-#include "td/db/binlog/detail/BinlogEventsProcessor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/format.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-
-namespace td {
-namespace detail {
-struct AesCtrEncryptionEvent {
-  static constexpr size_t min_salt_size() {
-    return 16;  // 256 bits
-  }
-  static constexpr size_t default_salt_size() {
-    return 32;  // 256 bits
-  }
-  static constexpr size_t key_size() {
-    return 32;  // 256 bits
-  }
-  static constexpr size_t iv_size() {
-    return 16;  // 128 bits
-  }
-  static constexpr size_t hash_size() {
-    return 32;  // 256 bits
-  }
-  static constexpr size_t kdf_iteration_count() {
-    return 60002;
-  }
-  static constexpr size_t kdf_fast_iteration_count() {
-    return 2;
-  }
-
-  string key_salt_;
-  string iv_;
-  string key_hash_;
-
-  string generate_key(const DbKey &db_key) const {
-    CHECK(!db_key.is_empty());
-    string key(key_size(), '\0');
-    size_t iteration_count = kdf_iteration_count();
-    if (db_key.is_raw_key()) {
-      iteration_count = kdf_fast_iteration_count();
-    }
-    pbkdf2_sha256(db_key.data(), key_salt_, narrow_cast<int>(iteration_count), key);
-    return key;
-  }
-
-  static string generate_hash(Slice key) {
-    string hash(hash_size(), '\0');
-    hmac_sha256(key, "cucumbers everywhere", hash);
-    return hash;
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    BEGIN_STORE_FLAGS();
-    END_STORE_FLAGS();
-    store(key_salt_, storer);
-    store(iv_, storer);
-    store(key_hash_, storer);
-  }
-  template <class ParserT>
-  void parse(ParserT &&parser) {
-    using td::parse;
-    BEGIN_PARSE_FLAGS();
-    END_PARSE_FLAGS();
-    parse(key_salt_, parser);
-    parse(iv_, parser);
-    parse(key_hash_, parser);
-  }
-};
-
-class BinlogReader {
- public:
-  explicit BinlogReader(ChainBufferReader *input) : input_(input) {
-  }
-  void set_input(ChainBufferReader *input, bool is_encrypted, int64 expected_size) {
-    input_ = input;
-    is_encrypted_ = is_encrypted;
-    expected_size_ = expected_size;
-  }
-
-  ChainBufferReader *input() {
-    return input_;
-  }
-
-  int64 offset() const {
-    return offset_;
-  }
-  Result<size_t> read_next(BinlogEvent *event) {
-    if (state_ == State::ReadLength) {
-      if (input_->size() < 4) {
-        return 4;
-      }
-      auto it = input_->clone();
-
-      char buf[4];
-      it.advance(4, MutableSlice(buf, 4));
-      size_ = static_cast<size_t>(TlParser(Slice(buf, 4)).fetch_int());
-
-      if (size_ > BinlogEvent::MAX_SIZE) {
-        return Status::Error(PSLICE() << "Too big event " << tag("size", size_));
-      }
-      if (size_ < BinlogEvent::MIN_SIZE) {
-        return Status::Error(PSLICE() << "Too small event " << tag("size", size_));
-      }
-      if (size_ % 4 != 0) {
-        return Status::Error(-2, PSLICE() << "Event of size " << size_ << " at offset " << offset() << " out of "
-                                          << expected_size_ << ' ' << tag("is_encrypted", is_encrypted_)
-                                          << format::as_hex_dump<4>(Slice(input_->prepare_read().truncate(28))));
-      }
-      state_ = State::ReadEvent;
-    }
-
-    if (input_->size() < size_) {
-      return size_;
-    }
-
-    event->debug_info_ = BinlogDebugInfo{__FILE__, __LINE__};
-    auto buffer_slice = input_->cut_head(size_).move_as_buffer_slice();
-    event->init(buffer_slice.as_slice().str());
-    TRY_STATUS(event->validate());
-    offset_ += size_;
-    event->offset_ = offset_;
-    state_ = State::ReadLength;
-    return 0;
-  }
-
- private:
-  ChainBufferReader *input_;
-  enum class State { ReadLength, ReadEvent };
-  State state_ = State::ReadLength;
-  size_t size_{0};
-  int64 offset_{0};
-  int64 expected_size_{0};
-  bool is_encrypted_{false};
-};
-
-static int64 file_size(CSlice path) {
-  auto r_stat = stat(path);
-  if (r_stat.is_error()) {
-    return 0;
-  }
-  return r_stat.ok().size_;
-}
-}  // namespace detail
-
-int32 VERBOSITY_NAME(binlog) = VERBOSITY_NAME(DEBUG) + 8;
-
-Binlog::Binlog() = default;
-
-Binlog::~Binlog() {
-  close().ignore();
-}
-
-Result<FileFd> Binlog::open_binlog(const string &path, int32 flags) {
-  TRY_RESULT(fd, FileFd::open(path, flags));
-  TRY_STATUS(fd.lock(FileFd::LockFlags::Write, path, 100));
-  return std::move(fd);
-}
-
-Status Binlog::init(string path, const Callback &callback, DbKey db_key, DbKey old_db_key, int32 dummy,
-                    const Callback &debug_callback) {
-  close().ignore();
-
-  db_key_ = std::move(db_key);
-  old_db_key_ = std::move(old_db_key);
-
-  processor_ = make_unique<detail::BinlogEventsProcessor>();
-  // Turn off BinlogEventsBuffer
-  // events_buffer_ = make_unique<detail::BinlogEventsBuffer>();
-
-  // try to restore binlog from regenerated version
-  if (stat(path).is_error()) {
-    rename(PSLICE() << path << ".new", path).ignore();
-  }
-
-  info_ = BinlogInfo();
-  info_.was_created = stat(path).is_error();
-
-  TRY_RESULT(fd, open_binlog(path, FileFd::Flags::Read | FileFd::Flags::Write | FileFd::Flags::Create));
-  fd_ = BufferedFdBase<FileFd>(std::move(fd));
-  fd_size_ = 0;
-  path_ = std::move(path);
-
-  auto status = load_binlog(callback, debug_callback);
-  if (status.is_error()) {
-    close().ignore();
-    return status;
-  }
-  info_.last_event_id = processor_->last_event_id();
-  last_event_id_ = processor_->last_event_id();
-  if (info_.wrong_password) {
-    close().ignore();
-    return Status::Error(static_cast<int>(Error::WrongPassword), "Wrong password");
-  }
-
-  if ((!db_key_.is_empty() && !db_key_used_) || (db_key_.is_empty() && encryption_type_ != EncryptionType::None)) {
-    aes_ctr_key_salt_ = string();
-    do_reindex();
-  }
-
-  info_.is_opened = true;
-  return Status::OK();
-}
-
-void Binlog::add_event(BinlogEvent &&event) {
-  if (event.size_ % 4 != 0) {
-    LOG(FATAL) << "Trying to add event with bad size " << event.public_to_string();
-  }
-
-  if (!events_buffer_) {
-    do_add_event(std::move(event));
-  } else {
-    events_buffer_->add_event(std::move(event));
-  }
-  lazy_flush();
-
-  if (state_ == State::Run) {
-    auto fd_size = fd_size_;
-    if (events_buffer_) {
-      fd_size += events_buffer_->size();
-    }
-    auto need_reindex = [&](int64 min_size, int rate) {
-      return fd_size > min_size && fd_size / rate > processor_->total_raw_events_size();
-    };
-    if (need_reindex(50000, 5) || need_reindex(100000, 4) || need_reindex(300000, 3) || need_reindex(500000, 2)) {
-      LOG(INFO) << tag("fd_size", format::as_size(fd_size))
-                << tag("total events size", format::as_size(processor_->total_raw_events_size()));
-      do_reindex();
-    }
-  }
-}
-
-size_t Binlog::flush_events_buffer(bool force) {
-  if (!events_buffer_) {
-    return 0;
-  }
-  if (!force && !events_buffer_->need_flush()) {
-    return events_buffer_->size();
-  }
-  CHECK(!in_flush_events_buffer_);
-  in_flush_events_buffer_ = true;
-  events_buffer_->flush([&](BinlogEvent &&event) { this->do_add_event(std::move(event)); });
-  in_flush_events_buffer_ = false;
-  return 0;
-}
-
-void Binlog::do_add_event(BinlogEvent &&event) {
-  if (event.flags_ & BinlogEvent::Flags::Partial) {
-    event.flags_ &= ~BinlogEvent::Flags::Partial;
-    pending_events_.emplace_back(std::move(event));
-  } else {
-    for (auto &pending_event : pending_events_) {
-      do_event(std::move(pending_event));
-    }
-    pending_events_.clear();
-    do_event(std::move(event));
-  }
-}
-
-Status Binlog::close(bool need_sync) {
-  if (fd_.empty()) {
-    return Status::OK();
-  }
-  if (need_sync) {
-    sync("close");
-  } else {
-    flush("close");
-  }
-
-  fd_.lock(FileFd::LockFlags::Unlock, path_, 1).ensure();
-  fd_.close();
-  path_.clear();
-  info_.is_opened = false;
-  need_sync_ = false;
-  return Status::OK();
-}
-
-void Binlog::close(Promise<> promise) {
-  TRY_STATUS_PROMISE(promise, close());
-  promise.set_value({});
-}
-
-void Binlog::change_key(DbKey new_db_key) {
-  db_key_ = std::move(new_db_key);
-  aes_ctr_key_salt_ = string();
-  do_reindex();
-}
-
-Status Binlog::close_and_destroy() {
-  auto path = path_;
-  auto close_status = close(false);
-  destroy(path).ignore();
-  return close_status;
-}
-
-Status Binlog::destroy(Slice path) {
-  unlink(PSLICE() << path << ".new").ignore();  // delete regenerated version first to avoid it becoming main version
-  unlink(PSLICE() << path).ignore();
-  return Status::OK();
-}
-
-void Binlog::do_event(BinlogEvent &&event) {
-  auto event_size = event.raw_event_.size();
-
-  if (state_ == State::Run || state_ == State::Reindex) {
-    auto validate_status = event.validate();
-    if (validate_status.is_error()) {
-      LOG(FATAL) << "Failed to validate binlog event " << validate_status << " "
-                 << format::as_hex_dump<4>(as_slice(event.raw_event_).truncate(28));
-    }
-    VLOG(binlog) << "Write binlog event: " << format::cond(state_ == State::Reindex, "[reindex] ")
-                 << event.public_to_string();
-    buffer_writer_.append(as_slice(event.raw_event_));
-  }
-
-  if (event.type_ < 0) {
-    if (event.type_ == BinlogEvent::ServiceTypes::AesCtrEncryption) {
-      detail::AesCtrEncryptionEvent encryption_event;
-      encryption_event.parse(TlParser(event.get_data()));
-
-      string key;
-      if (aes_ctr_key_salt_ == encryption_event.key_salt_) {
-        key = as_slice(aes_ctr_key_).str();
-      } else if (!db_key_.is_empty()) {
-        key = encryption_event.generate_key(db_key_);
-      }
-
-      if (detail::AesCtrEncryptionEvent::generate_hash(key) != encryption_event.key_hash_) {
-        CHECK(state_ == State::Load);
-        if (!old_db_key_.is_empty()) {
-          key = encryption_event.generate_key(old_db_key_);
-          if (detail::AesCtrEncryptionEvent::generate_hash(key) != encryption_event.key_hash_) {
-            info_.wrong_password = true;
-          }
-        } else {
-          info_.wrong_password = true;
-        }
-      } else {
-        db_key_used_ = true;
-      }
-
-      encryption_type_ = EncryptionType::AesCtr;
-
-      aes_ctr_key_salt_ = encryption_event.key_salt_;
-      update_encryption(key, encryption_event.iv_);
-
-      if (state_ == State::Load) {
-        update_read_encryption();
-        LOG(INFO) << "Load: init encryption";
-      } else {
-        CHECK(state_ == State::Reindex);
-        flush("do_event");
-        update_write_encryption();
-        //LOG(INFO) << format::cond(state_ == State::Run, "Run", "Reindex") << ": init encryption";
-      }
-    }
-  }
-
-  if (state_ != State::Reindex) {
-    auto status = processor_->add_event(std::move(event));
-    if (status.is_error()) {
-      auto old_size = detail::file_size(path_);
-      auto data = debug_get_binlog_data(fd_size_, old_size);
-      if (state_ == State::Load) {
-        fd_.seek(fd_size_).ensure();
-        fd_.truncate_to_current_position(fd_size_).ensure();
-
-        if (data.empty()) {
-          return;
-        }
-      }
-
-      LOG(FATAL) << "Truncate binlog \"" << path_ << "\" from size " << old_size << " to size " << fd_size_
-                 << " in state " << static_cast<int32>(state_) << " due to error: " << status << " after reading "
-                 << data;
-    }
-  }
-
-  fd_events_++;
-  fd_size_ += event_size;
-}
-
-void Binlog::sync(const char *source) {
-  flush(source);
-  if (need_sync_) {
-    LOG(INFO) << "Sync binlog from " << source;
-    auto status = fd_.sync();
-    LOG_IF(FATAL, status.is_error()) << "Failed to sync binlog: " << status;
-    need_sync_ = false;
-  }
-}
-
-void Binlog::flush(const char *source) {
-  if (state_ == State::Load) {
-    return;
-  }
-  LOG(DEBUG) << "Flush binlog from " << source;
-  flush_events_buffer(true);
-  // NB: encryption happens during flush
-  if (byte_flow_flag_) {
-    byte_flow_source_.wakeup();
-  }
-  auto r_written = fd_.flush_write();
-  r_written.ensure();
-  auto written = r_written.ok();
-  if (written > 0) {
-    need_sync_ = true;
-  }
-  need_flush_since_ = 0;
-  LOG_IF(FATAL, fd_.need_flush_write()) << "Failed to flush binlog";
-
-  if (state_ == State::Run && Time::now() > next_buffer_flush_time_) {
-    VLOG(binlog) << "Flush write buffer";
-    buffer_writer_ = ChainBufferWriter();
-    buffer_reader_ = buffer_writer_.extract_reader();
-    if (encryption_type_ == EncryptionType::AesCtr) {
-      aes_ctr_state_ = aes_xcode_byte_flow_.move_aes_ctr_state();
-    }
-    update_write_encryption();
-    next_buffer_flush_time_ = Time::now() + 1.0;
-  }
-}
-
-void Binlog::lazy_flush() {
-  size_t events_buffer_size = flush_events_buffer(false /*force*/);
-  buffer_reader_.sync_with_writer();
-  auto size = buffer_reader_.size() + events_buffer_size;
-  if (size > (1 << 14)) {
-    flush("lazy_flush");
-  } else if (size > 0 && need_flush_since_ == 0) {
-    need_flush_since_ = Time::now_cached();
-  }
-}
-
-void Binlog::update_read_encryption() {
-  CHECK(binlog_reader_ptr_);
-  switch (encryption_type_) {
-    case EncryptionType::None: {
-      auto r_file_size = fd_.get_size();
-      r_file_size.ensure();
-      binlog_reader_ptr_->set_input(&buffer_reader_, false, r_file_size.ok());
-      byte_flow_flag_ = false;
-      break;
-    }
-    case EncryptionType::AesCtr: {
-      byte_flow_source_ = ByteFlowSource(&buffer_reader_);
-      aes_xcode_byte_flow_ = AesCtrByteFlow();
-      aes_xcode_byte_flow_.init(std::move(aes_ctr_state_));
-      byte_flow_sink_ = ByteFlowSink();
-      byte_flow_source_ >> aes_xcode_byte_flow_ >> byte_flow_sink_;
-      byte_flow_flag_ = true;
-      auto r_file_size = fd_.get_size();
-      r_file_size.ensure();
-      binlog_reader_ptr_->set_input(byte_flow_sink_.get_output(), true, r_file_size.ok());
-      break;
-    }
-  }
-}
-
-void Binlog::update_write_encryption() {
-  switch (encryption_type_) {
-    case EncryptionType::None: {
-      fd_.set_output_reader(&buffer_reader_);
-      byte_flow_flag_ = false;
-      break;
-    }
-    case EncryptionType::AesCtr: {
-      byte_flow_source_ = ByteFlowSource(&buffer_reader_);
-      aes_xcode_byte_flow_ = AesCtrByteFlow();
-      aes_xcode_byte_flow_.init(std::move(aes_ctr_state_));
-      byte_flow_sink_ = ByteFlowSink();
-      byte_flow_source_ >> aes_xcode_byte_flow_ >> byte_flow_sink_;
-      byte_flow_flag_ = true;
-      fd_.set_output_reader(byte_flow_sink_.get_output());
-      break;
-    }
-  }
-}
-
-Status Binlog::load_binlog(const Callback &callback, const Callback &debug_callback) {
-  state_ = State::Load;
-
-  buffer_writer_ = ChainBufferWriter();
-  buffer_reader_ = buffer_writer_.extract_reader();
-  fd_.set_input_writer(&buffer_writer_);
-  detail::BinlogReader reader{nullptr};
-  binlog_reader_ptr_ = &reader;
-
-  update_read_encryption();
-
-  fd_.get_poll_info().add_flags(PollFlags::Read());
-  info_.wrong_password = false;
-  while (true) {
-    BinlogEvent event;
-    auto r_need_size = reader.read_next(&event);
-    if (r_need_size.is_error()) {
-      if (r_need_size.error().code() == -2) {
-        auto old_size = detail::file_size(path_);
-        auto offset = reader.offset();
-        auto data = debug_get_binlog_data(offset, old_size);
-        fd_.seek(offset).ensure();
-        fd_.truncate_to_current_position(offset).ensure();
-        if (data.empty()) {
-          break;
-        }
-        LOG(FATAL) << "Truncate binlog \"" << path_ << "\" from size " << old_size << " to size " << offset
-                   << " due to error: " << r_need_size.error() << " after reading " << data;
-      }
-      LOG(ERROR) << r_need_size.error();
-      break;
-    }
-    auto need_size = r_need_size.move_as_ok();
-    // LOG(ERROR) << "Need size = " << need_size;
-    if (need_size == 0) {
-      if (debug_callback) {
-        debug_callback(event);
-      }
-      do_add_event(std::move(event));
-      if (info_.wrong_password) {
-        return Status::OK();
-      }
-    } else {
-      TRY_STATUS(fd_.flush_read(max(need_size, static_cast<size_t>(4096))));
-      buffer_reader_.sync_with_writer();
-      if (byte_flow_flag_) {
-        byte_flow_source_.wakeup();
-      }
-      if (reader.input()->size() < need_size) {
-        break;
-      }
-    }
-  }
-
-  auto offset = processor_->offset();
-  CHECK(offset >= 0);
-  processor_->for_each([&](BinlogEvent &event) {
-    VLOG(binlog) << "Replay binlog event: " << event.public_to_string();
-    if (callback) {
-      callback(event);
-    }
-  });
-
-  TRY_RESULT(fd_size, fd_.get_size());
-  if (offset != fd_size) {
-    LOG(ERROR) << "Truncate " << tag("path", path_) << tag("old_size", fd_size) << tag("new_size", offset);
-    fd_.seek(offset).ensure();
-    fd_.truncate_to_current_position(offset).ensure();
-    db_key_used_ = false;  // force reindex
-  }
-  LOG_CHECK(fd_size_ == offset) << fd_size << " " << fd_size_ << " " << offset;
-  binlog_reader_ptr_ = nullptr;
-  state_ = State::Run;
-
-  buffer_writer_ = ChainBufferWriter();
-  buffer_reader_ = buffer_writer_.extract_reader();
-
-  // reuse aes_ctr_state_
-  if (encryption_type_ == EncryptionType::AesCtr) {
-    aes_ctr_state_ = aes_xcode_byte_flow_.move_aes_ctr_state();
-  }
-  update_write_encryption();
-
-  return Status::OK();
-}
-
-void Binlog::update_encryption(Slice key, Slice iv) {
-  as_mutable_slice(aes_ctr_key_).copy_from(key);
-  UInt128 aes_ctr_iv;
-  as_mutable_slice(aes_ctr_iv).copy_from(iv);
-  aes_ctr_state_.init(as_slice(aes_ctr_key_), as_slice(aes_ctr_iv));
-}
-
-void Binlog::reset_encryption() {
-  if (db_key_.is_empty()) {
-    encryption_type_ = EncryptionType::None;
-    return;
-  }
-
-  using EncryptionEvent = detail::AesCtrEncryptionEvent;
-  EncryptionEvent event;
-
-  if (aes_ctr_key_salt_.empty()) {
-    event.key_salt_.resize(EncryptionEvent::default_salt_size());
-    Random::secure_bytes(event.key_salt_);
-  } else {
-    event.key_salt_ = aes_ctr_key_salt_;
-  }
-  event.iv_.resize(EncryptionEvent::iv_size());
-  Random::secure_bytes(event.iv_);
-
-  string key;
-  if (aes_ctr_key_salt_ == event.key_salt_) {
-    key = as_slice(aes_ctr_key_).str();
-  } else {
-    key = event.generate_key(db_key_);
-  }
-
-  event.key_hash_ = EncryptionEvent::generate_hash(key);
-
-  do_event(BinlogEvent(
-      BinlogEvent::create_raw(0, BinlogEvent::ServiceTypes::AesCtrEncryption, 0, create_default_storer(event)),
-      BinlogDebugInfo{__FILE__, __LINE__}));
-}
-
-void Binlog::do_reindex() {
-  flush_events_buffer(true);
-  // start reindex
-  CHECK(state_ == State::Run);
-  state_ = State::Reindex;
-  SCOPE_EXIT {
-    state_ = State::Run;
-  };
-
-  auto start_time = Clocks::monotonic();
-  auto start_size = detail::file_size(path_);
-  auto start_events = fd_events_;
-
-  string new_path = path_ + ".new";
-
-  auto r_opened_file = open_binlog(new_path, FileFd::Flags::Write | FileFd::Flags::Create | FileFd::Truncate);
-  if (r_opened_file.is_error()) {
-    LOG(ERROR) << "Can't open new binlog for regenerate: " << r_opened_file.error();
-    return;
-  }
-  auto old_fd = std::move(fd_);  // can't close fd_ now, because it will release file lock
-  fd_ = BufferedFdBase<FileFd>(r_opened_file.move_as_ok());
-
-  buffer_writer_ = ChainBufferWriter();
-  buffer_reader_ = buffer_writer_.extract_reader();
-  encryption_type_ = EncryptionType::None;
-  update_write_encryption();
-
-  // reindex
-  fd_size_ = 0;
-  fd_events_ = 0;
-  reset_encryption();
-  processor_->for_each([&](BinlogEvent &event) {
-    do_event(std::move(event));  // NB: no move is actually happens
-  });
-  {
-    flush("do_reindex");
-    if (start_size != 0) {  // must sync creation of the file if it is non-empty
-      auto status = fd_.sync_barrier();
-      LOG_IF(FATAL, status.is_error()) << "Failed to sync binlog: " << status;
-    }
-    need_sync_ = false;
-  }
-
-  // finish_reindex
-  auto status = unlink(path_);
-  LOG_IF(FATAL, status.is_error()) << "Failed to unlink old binlog: " << status;
-  old_fd.close();  // now we can close old file and release the system lock
-  status = rename(new_path, path_);
-  FileFd::remove_local_lock(new_path);  // now we can release local lock for temporary file
-  LOG_IF(FATAL, status.is_error()) << "Failed to rename binlog: " << status;
-
-  auto finish_time = Clocks::monotonic();
-  auto finish_size = fd_size_;
-  auto finish_events = fd_events_;
-  for (int left_tries = 10; left_tries > 0; left_tries--) {
-    auto r_stat = stat(path_);
-    if (r_stat.is_error()) {
-      if (left_tries != 1) {
-        usleep_for(200000 / left_tries);
-        continue;
-      }
-      LOG(FATAL) << "Failed to rename binlog of size " << fd_size_ << " to " << path_ << ": " << r_stat.error()
-                 << ". Temp file size is " << detail::file_size(new_path) << ", new size " << detail::file_size(path_);
-    }
-    LOG_CHECK(fd_size_ == r_stat.ok().size_) << fd_size_ << ' ' << r_stat.ok().size_ << ' '
-                                             << detail::file_size(new_path) << ' ' << fd_events_ << ' ' << path_;
-    break;
-  }
-
-  auto ratio = static_cast<double>(start_size) / static_cast<double>(finish_size + 1);
-
-  [&](Slice msg) {
-    if (start_size > (10 << 20) || finish_time - start_time > 1) {
-      LOG(WARNING) << "Slow " << msg;
-    } else {
-      LOG(INFO) << msg;
-    }
-  }(PSLICE() << "Regenerate index " << tag("name", path_) << tag("time", format::as_time(finish_time - start_time))
-             << tag("before_size", format::as_size(start_size)) << tag("after_size", format::as_size(finish_size))
-             << tag("ratio", ratio) << tag("before_events", start_events) << tag("after_events", finish_events));
-
-  buffer_writer_ = ChainBufferWriter();
-  buffer_reader_ = buffer_writer_.extract_reader();
-
-  // reuse aes_ctr_state_
-  if (encryption_type_ == EncryptionType::AesCtr) {
-    aes_ctr_state_ = aes_xcode_byte_flow_.move_aes_ctr_state();
-  }
-  update_write_encryption();
-}
-
-string Binlog::debug_get_binlog_data(int64 begin_offset, int64 end_offset) {
-  if (begin_offset > end_offset) {
-    return "Begin offset is bigger than end_offset";
-  }
-  if (begin_offset == end_offset) {
-    return string();
-  }
-
-  static int64 MAX_DATA_LENGTH = 512;
-  if (end_offset - begin_offset > MAX_DATA_LENGTH) {
-    end_offset = begin_offset + MAX_DATA_LENGTH;
-  }
-
-  auto r_fd = FileFd::open(path_, FileFd::Flags::Read);
-  if (r_fd.is_error()) {
-    return PSTRING() << "Failed to open binlog: " << r_fd.error();
-  }
-  auto fd = r_fd.move_as_ok();
-
-  fd_.lock(FileFd::LockFlags::Unlock, path_, 1).ignore();
-  SCOPE_EXIT {
-    fd_.lock(FileFd::LockFlags::Write, path_, 1).ensure();
-  };
-  auto expected_data_length = narrow_cast<size_t>(end_offset - begin_offset);
-  string data(expected_data_length, '\0');
-  auto r_data_size = fd.pread(data, begin_offset);
-  if (r_data_size.is_error()) {
-    return PSTRING() << "Failed to read binlog: " << r_data_size.error();
-  }
-
-  if (r_data_size.ok() < expected_data_length) {
-    data.resize(r_data_size.ok());
-    data = PSTRING() << format::as_hex_dump<4>(Slice(data)) << " | with " << expected_data_length - r_data_size.ok()
-                     << " missed bytes";
-  } else {
-    if (encryption_type_ == EncryptionType::AesCtr) {
-      bool is_zero = true;
-      for (auto &c : data) {
-        if (c != '\0') {
-          is_zero = false;
-        }
-      }
-      // very often we have '\0' bytes written to disk instead of a real log event
-      // this is clearly impossible content for a real encrypted log event, so just ignore it
-      if (is_zero) {
-        return string();
-      }
-    }
-
-    data = PSTRING() << format::as_hex_dump<4>(Slice(data));
-  }
-  return data;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/Binlog.h b/third-party/td/td/tddb/td/db/binlog/Binlog.h
deleted file mode 100644
index 991daa0aad..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/Binlog.h
+++ /dev/null
@@ -1,183 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/DbKey.h"
-
-#include "td/utils/AesCtrByteFlow.h"
-#include "td/utils/buffer.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/ByteFlow.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/UInt.h"
-
-#include <functional>
-
-namespace td {
-
-extern int32 VERBOSITY_NAME(binlog);
-
-struct BinlogInfo {
-  bool was_created{false};
-  uint64 last_event_id{0};
-  bool is_encrypted{false};
-  bool wrong_password{false};
-  bool is_opened{false};
-};
-
-namespace detail {
-class BinlogReader;
-class BinlogEventsProcessor;
-class BinlogEventsBuffer;
-}  // namespace detail
-
-class Binlog {
- public:
-  enum class Error : int { WrongPassword = -1037284 };
-  Binlog();
-  Binlog(const Binlog &) = delete;
-  Binlog &operator=(const Binlog &) = delete;
-  Binlog(Binlog &&) = delete;
-  Binlog &operator=(Binlog &&) = delete;
-  ~Binlog();
-
-  using Callback = std::function<void(const BinlogEvent &)>;
-  Status init(string path, const Callback &callback, DbKey db_key = DbKey::empty(), DbKey old_db_key = DbKey::empty(),
-              int32 dummy = -1, const Callback &debug_callback = Callback()) TD_WARN_UNUSED_RESULT;
-
-  uint64 next_event_id() {
-    return ++last_event_id_;
-  }
-  uint64 next_event_id(int32 shift) {
-    auto res = last_event_id_ + 1;
-    last_event_id_ += shift;
-    return res;
-  }
-  uint64 peek_next_event_id() const {
-    return last_event_id_ + 1;
-  }
-
-  bool empty() const {
-    return fd_.empty();
-  }
-
-  uint64 add(int32 type, const Storer &storer) {
-    auto event_id = next_event_id();
-    add_raw_event(BinlogEvent::create_raw(event_id, type, 0, storer), {});
-    return event_id;
-  }
-
-  uint64 rewrite(uint64 event_id, int32 type, const Storer &storer) {
-    auto seq_no = next_event_id();
-    add_raw_event(BinlogEvent::create_raw(event_id, type, BinlogEvent::Flags::Rewrite, storer), {});
-    return seq_no;
-  }
-
-  uint64 erase(uint64 event_id) {
-    auto seq_no = next_event_id();
-    add_raw_event(
-        BinlogEvent::create_raw(event_id, BinlogEvent::ServiceTypes::Empty, BinlogEvent::Flags::Rewrite, EmptyStorer()),
-        {});
-    return seq_no;
-  }
-
-  uint64 erase_batch(vector<uint64> event_ids) {
-    if (event_ids.empty()) {
-      return 0;
-    }
-    auto seq_no = next_event_id(0);
-    for (auto event_id : event_ids) {
-      erase(event_id);
-    }
-    return seq_no;
-  }
-
-  void add_raw_event(BufferSlice &&raw_event, BinlogDebugInfo info) {
-    add_event(BinlogEvent(std::move(raw_event), info));
-  }
-
-  void add_event(BinlogEvent &&event);
-  void sync(const char *source);
-  void flush(const char *source);
-  void lazy_flush();
-  double need_flush_since() const {
-    return need_flush_since_;
-  }
-  void change_key(DbKey new_db_key);
-
-  Status close(bool need_sync = true) TD_WARN_UNUSED_RESULT;
-  void close(Promise<> promise);
-  Status close_and_destroy() TD_WARN_UNUSED_RESULT;
-  static Status destroy(Slice path) TD_WARN_UNUSED_RESULT;
-
-  CSlice get_path() const {
-    return path_;
-  }
-
-  BinlogInfo get_info() const {  // works even after binlog was closed
-    return info_;
-  }
-
- private:
-  BufferedFdBase<FileFd> fd_;
-  ChainBufferWriter buffer_writer_;
-  ChainBufferReader buffer_reader_;
-  detail::BinlogReader *binlog_reader_ptr_ = nullptr;
-
-  BinlogInfo info_;
-  DbKey db_key_;
-  bool db_key_used_ = false;
-  DbKey old_db_key_;
-  enum class EncryptionType { None, AesCtr } encryption_type_ = EncryptionType::None;
-
-  // AesCtrEncryption
-  string aes_ctr_key_salt_;
-  UInt256 aes_ctr_key_;
-  AesCtrState aes_ctr_state_;
-
-  bool byte_flow_flag_ = false;
-  ByteFlowSource byte_flow_source_;
-  ByteFlowSink byte_flow_sink_;
-  AesCtrByteFlow aes_xcode_byte_flow_;
-
-  int64 fd_size_{0};
-  uint64 fd_events_{0};
-  string path_;
-  vector<BinlogEvent> pending_events_;
-  unique_ptr<detail::BinlogEventsProcessor> processor_;
-  unique_ptr<detail::BinlogEventsBuffer> events_buffer_;
-  bool in_flush_events_buffer_{false};
-  uint64 last_event_id_{0};
-  double need_flush_since_ = 0;
-  double next_buffer_flush_time_ = 0;
-  bool need_sync_{false};
-  enum class State { Empty, Load, Reindex, Run } state_{State::Empty};
-
-  static Result<FileFd> open_binlog(const string &path, int32 flags);
-  size_t flush_events_buffer(bool force);
-  void do_add_event(BinlogEvent &&event);
-  void do_event(BinlogEvent &&event);
-  Status load_binlog(const Callback &callback, const Callback &debug_callback = Callback()) TD_WARN_UNUSED_RESULT;
-  void do_reindex();
-
-  void update_encryption(Slice key, Slice iv);
-  void reset_encryption();
-  void update_read_encryption();
-  void update_write_encryption();
-
-  string debug_get_binlog_data(int64 begin_offset, int64 end_offset);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/BinlogEvent.cpp b/third-party/td/td/tddb/td/db/binlog/BinlogEvent.cpp
deleted file mode 100644
index a8eebc9c34..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/BinlogEvent.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/binlog/BinlogEvent.h"
-
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-
-namespace td {
-
-void BinlogEvent::init(string raw_event) {
-  TlParser parser(as_slice(raw_event));
-  size_ = static_cast<uint32>(parser.fetch_int());
-  LOG_CHECK(size_ == raw_event.size()) << size_ << ' ' << raw_event.size() << debug_info_;
-  id_ = static_cast<uint64>(parser.fetch_long());
-  type_ = parser.fetch_int();
-  flags_ = parser.fetch_int();
-  extra_ = static_cast<uint64>(parser.fetch_long());
-  CHECK(size_ >= MIN_SIZE);
-  parser.template fetch_string_raw<Slice>(size_ - MIN_SIZE);  // skip data
-  crc32_ = static_cast<uint32>(parser.fetch_int());
-  raw_event_ = std::move(raw_event);
-}
-
-Slice BinlogEvent::get_data() const {
-  CHECK(raw_event_.size() >= MIN_SIZE);
-  return Slice(as_slice(raw_event_).data() + HEADER_SIZE, raw_event_.size() - MIN_SIZE);
-}
-
-Status BinlogEvent::validate() const {
-  if (raw_event_.size() < MIN_SIZE) {
-    return Status::Error("Too small event");
-  }
-  TlParser parser(as_slice(raw_event_));
-  auto size = static_cast<uint32>(parser.fetch_int());
-  if (size_ != size || size_ != raw_event_.size()) {
-    return Status::Error(PSLICE() << "Size of event changed: " << tag("was", size_) << tag("now", size)
-                                  << tag("real size", raw_event_.size()));
-  }
-  parser.template fetch_string_raw<Slice>(size_ - TAIL_SIZE - sizeof(int));  // skip
-  auto stored_crc32 = static_cast<uint32>(parser.fetch_int());
-  auto calculated_crc = crc32(Slice(as_slice(raw_event_).data(), size_ - TAIL_SIZE));
-  if (calculated_crc != crc32_ || calculated_crc != stored_crc32) {
-    return Status::Error(PSLICE() << "CRC mismatch " << tag("actual", format::as_hex(calculated_crc))
-                                  << tag("expected", format::as_hex(crc32_)) << public_to_string());
-  }
-  return Status::OK();
-}
-
-BufferSlice BinlogEvent::create_raw(uint64 id, int32 type, int32 flags, const Storer &storer) {
-  auto raw_event = BufferSlice{storer.size() + MIN_SIZE};
-
-  TlStorerUnsafe tl_storer(raw_event.as_mutable_slice().ubegin());
-  tl_storer.store_int(narrow_cast<int32>(raw_event.size()));
-  tl_storer.store_long(id);
-  tl_storer.store_int(type);
-  tl_storer.store_int(flags);
-  tl_storer.store_long(0);
-
-  CHECK(tl_storer.get_buf() == raw_event.as_slice().ubegin() + HEADER_SIZE);
-  tl_storer.store_storer(storer);
-
-  CHECK(tl_storer.get_buf() == raw_event.as_slice().uend() - TAIL_SIZE);
-  tl_storer.store_int(crc32(raw_event.as_slice().truncate(raw_event.size() - TAIL_SIZE)));
-
-  return raw_event;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/BinlogEvent.h b/third-party/td/td/tddb/td/db/binlog/BinlogEvent.h
deleted file mode 100644
index 0ff1224d2c..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/BinlogEvent.h
+++ /dev/null
@@ -1,115 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/Storer.h"
-#include "td/utils/StorerBase.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-struct EmptyStorerImpl {
-  EmptyStorerImpl() {
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-  }
-};
-
-inline auto EmptyStorer() {
-  static const EmptyStorerImpl impl;
-  return create_default_storer(impl);
-}
-
-struct BinlogDebugInfo {
-  BinlogDebugInfo() = default;
-  BinlogDebugInfo(const char *file, int line) : file(file), line(line) {
-  }
-  const char *file{""};
-  int line{0};
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const BinlogDebugInfo &info) {
-  if (info.line == 0) {
-    return sb;
-  }
-  return sb << "[" << info.file << ":" << info.line << "]";
-}
-
-struct BinlogEvent {
-  static constexpr size_t MAX_SIZE = 1 << 24;
-  static constexpr size_t HEADER_SIZE = 4 + 8 + 4 + 4 + 8;
-  static constexpr size_t TAIL_SIZE = 4;
-  static constexpr size_t MIN_SIZE = HEADER_SIZE + TAIL_SIZE;
-
-  int64 offset_ = -1;
-
-  uint32 size_ = 0;
-  uint64 id_ = 0;
-  int32 type_ = 0;  // type can be merged with flags
-  int32 flags_ = 0;
-  uint64 extra_ = 0;
-  uint32 crc32_ = 0;
-
-  string raw_event_;
-
-  BinlogDebugInfo debug_info_;
-
-  enum ServiceTypes { Header = -1, Empty = -2, AesCtrEncryption = -3, NoEncryption = -4 };
-  enum Flags { Rewrite = 1, Partial = 2 };
-
-  Slice get_data() const;
-
-  bool is_empty() const {
-    return raw_event_.empty();
-  }
-
-  BinlogEvent clone() const {
-    BinlogEvent result;
-    result.debug_info_ = BinlogDebugInfo{__FILE__, __LINE__};
-    result.init(raw_event_);
-    result.validate().ensure();
-    return result;
-  }
-
-  BufferSlice data_as_buffer_slice() const {
-    return BufferSlice(get_data());
-  }
-
-  BinlogEvent() = default;
-
-  BinlogEvent(BufferSlice &&raw_event, BinlogDebugInfo info) {
-    debug_info_ = info;
-    init(raw_event.as_slice().str());
-  }
-
-  static BufferSlice create_raw(uint64 id, int32 type, int32 flags, const Storer &storer);
-
-  string public_to_string() const {
-    return PSTRING() << "LogEvent[" << tag("id", format::as_hex(id_)) << tag("type", type_) << tag("flags", flags_)
-                     << tag("data", get_data().size()) << "]" << debug_info_;
-  }
-
-  void init(string raw_event);
-
-  Status validate() const TD_WARN_UNUSED_RESULT;
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, const BinlogEvent &event) {
-  return sb << "LogEvent[" << tag("id", format::as_hex(event.id_)) << tag("type", event.type_)
-            << tag("flags", event.flags_) << tag("data", format::as_hex_dump<4>(event.get_data())) << "]"
-            << event.debug_info_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/BinlogHelper.h b/third-party/td/td/tddb/td/db/binlog/BinlogHelper.h
deleted file mode 100644
index c5d76098ca..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/BinlogHelper.h
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogInterface.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/StorerBase.h"
-
-namespace td {
-
-inline uint64 binlog_add(BinlogInterface *binlog_ptr, int32 type, const Storer &storer,
-                         Promise<> promise = Promise<>()) {
-  return binlog_ptr->add(type, storer, std::move(promise));
-}
-
-inline uint64 binlog_rewrite(BinlogInterface *binlog_ptr, uint64 log_event_id, int32 type, const Storer &storer,
-                             Promise<> promise = Promise<>()) {
-  return binlog_ptr->rewrite(log_event_id, type, storer, std::move(promise));
-}
-
-inline uint64 binlog_erase(BinlogInterface *binlog_ptr, uint64 log_event_id, Promise<> promise = Promise<>()) {
-  return binlog_ptr->erase(log_event_id, std::move(promise));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/BinlogInterface.h b/third-party/td/td/tddb/td/db/binlog/BinlogInterface.h
deleted file mode 100644
index 9e674b3f06..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/BinlogInterface.h
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/DbKey.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/StorerBase.h"
-
-namespace td {
-
-class BinlogInterface {
- public:
-  BinlogInterface() = default;
-  BinlogInterface(const BinlogInterface &) = delete;
-  BinlogInterface &operator=(const BinlogInterface &) = delete;
-  BinlogInterface(BinlogInterface &&) = delete;
-  BinlogInterface &operator=(BinlogInterface &&) = delete;
-  virtual ~BinlogInterface() = default;
-
-  void close(Promise<> promise = {}) {
-    close_impl(std::move(promise));
-  }
-  void close_and_destroy(Promise<> promise = {}) {
-    close_and_destroy_impl(std::move(promise));
-  }
-  void add_raw_event(BinlogDebugInfo info, uint64 event_id, BufferSlice &&raw_event, Promise<> promise = Promise<>()) {
-    add_raw_event_impl(event_id, std::move(raw_event), std::move(promise), info);
-  }
-  void add_raw_event(uint64 event_id, BufferSlice &&raw_event, Promise<> promise = Promise<>()) {
-    add_raw_event_impl(event_id, std::move(raw_event), std::move(promise), {});
-  }
-  void lazy_sync(Promise<> promise = Promise<>()) {
-    add_raw_event_impl(next_event_id(), BufferSlice(), std::move(promise), {});
-  }
-
-  uint64 add(int32 type, const Storer &storer, Promise<> promise = Promise<>()) {
-    auto event_id = next_event_id();
-    add_raw_event_impl(event_id, BinlogEvent::create_raw(event_id, type, 0, storer), std::move(promise), {});
-    return event_id;
-  }
-
-  uint64 rewrite(uint64 event_id, int32 type, const Storer &storer, Promise<> promise = Promise<>()) {
-    auto seq_no = next_event_id();
-    add_raw_event_impl(seq_no, BinlogEvent::create_raw(event_id, type, BinlogEvent::Flags::Rewrite, storer),
-                       std::move(promise), {});
-    return seq_no;
-  }
-
-  uint64 erase(uint64 event_id, Promise<> promise = Promise<>()) {
-    auto seq_no = next_event_id();
-    add_raw_event_impl(
-        seq_no,
-        BinlogEvent::create_raw(event_id, BinlogEvent::ServiceTypes::Empty, BinlogEvent::Flags::Rewrite, EmptyStorer()),
-        std::move(promise), {});
-    return seq_no;
-  }
-
-  virtual uint64 erase_batch(vector<uint64> event_ids) {
-    if (event_ids.empty()) {
-      return 0;
-    }
-    uint64 seq_no = next_event_id(0);
-    for (auto event_id : event_ids) {
-      erase(event_id);
-    }
-    return seq_no;
-  }
-
-  virtual void force_sync(Promise<> promise, const char *source) = 0;
-  virtual void force_flush() = 0;
-  virtual void change_key(DbKey db_key, Promise<> promise) = 0;
-
-  virtual uint64 next_event_id() = 0;
-  virtual uint64 next_event_id(int32 shift) = 0;
-
- protected:
-  virtual void close_impl(Promise<> promise) = 0;
-  virtual void close_and_destroy_impl(Promise<> promise) = 0;
-  virtual void add_raw_event_impl(uint64 seq_no, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/ConcurrentBinlog.cpp b/third-party/td/td/tddb/td/db/binlog/ConcurrentBinlog.cpp
deleted file mode 100644
index 0050e5624b..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/ConcurrentBinlog.cpp
+++ /dev/null
@@ -1,231 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/binlog/ConcurrentBinlog.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/OrderedEventsProcessor.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-#include <map>
-
-namespace td {
-namespace detail {
-class BinlogActor final : public Actor {
- public:
-  BinlogActor(unique_ptr<Binlog> binlog, uint64 seq_no) : binlog_(std::move(binlog)), processor_(seq_no) {
-  }
-  void close(Promise<> promise) {
-    binlog_->close().ensure();
-    LOG(INFO) << "Finished to close binlog";
-    stop();
-
-    promise.set_value(Unit());  // setting promise can complete closing and destroy the current actor context
-  }
-  void close_and_destroy(Promise<> promise) {
-    binlog_->close_and_destroy().ensure();
-    LOG(INFO) << "Finished to destroy binlog";
-    stop();
-
-    promise.set_value(Unit());  // setting promise can complete closing and destroy the current actor context
-  }
-
-  struct Event {
-    BufferSlice raw_event;
-    Promise<> sync_promise;
-    BinlogDebugInfo debug_info;
-  };
-
-  void erase_batch(uint64 seq_no, std::vector<uint64> event_ids) {
-    for (auto event_id : event_ids) {
-      auto event = BinlogEvent::create_raw(event_id, BinlogEvent::ServiceTypes::Empty, BinlogEvent::Flags::Rewrite,
-                                           EmptyStorer());
-      add_raw_event(seq_no, std::move(event), Promise<Unit>(), BinlogDebugInfo{__FILE__, __LINE__});
-      seq_no++;
-    }
-  }
-
-  void add_raw_event(uint64 seq_no, BufferSlice &&raw_event, Promise<> &&promise, BinlogDebugInfo info) {
-    processor_.add(seq_no, Event{std::move(raw_event), std::move(promise), info}, [&](uint64 event_id, Event &&event) {
-      if (!event.raw_event.empty()) {
-        do_add_raw_event(std::move(event.raw_event), event.debug_info);
-      }
-      do_lazy_sync(std::move(event.sync_promise));
-    });
-    flush_immediate_sync();
-    try_flush();
-  }
-
-  void force_sync(Promise<> &&promise, const char *source) {
-    LOG(INFO) << "Force binlog sync from " << source;
-    auto seq_no = processor_.max_unfinished_seq_no();
-    if (processor_.max_finished_seq_no() == seq_no) {
-      do_immediate_sync(std::move(promise));
-    } else {
-      immediate_sync_promises_.emplace(seq_no, std::move(promise));
-    }
-  }
-
-  void force_flush() {
-    // TODO: use same logic as in force_sync
-    binlog_->flush("force_flush");
-    flush_flag_ = false;
-  }
-
-  void change_key(DbKey db_key, Promise<> promise) {
-    binlog_->change_key(std::move(db_key));
-    promise.set_value(Unit());
-  }
-
- private:
-  unique_ptr<Binlog> binlog_;
-
-  OrderedEventsProcessor<Event> processor_;
-
-  std::multimap<uint64, Promise<>> immediate_sync_promises_;
-  std::vector<Promise<>> sync_promises_;
-  bool force_sync_flag_ = false;
-  bool lazy_sync_flag_ = false;
-  bool flush_flag_ = false;
-  double wakeup_at_ = 0;
-
-  static constexpr double FLUSH_TIMEOUT = 0.001;  // 1ms
-
-  void wakeup_after(double after) {
-    auto now = Time::now_cached();
-    wakeup_at(now + after);
-  }
-
-  void wakeup_at(double at) {
-    if (wakeup_at_ == 0 || wakeup_at_ > at) {
-      wakeup_at_ = at;
-      set_timeout_at(wakeup_at_);
-    }
-  }
-
-  void do_add_raw_event(BufferSlice &&raw_event, BinlogDebugInfo info) {
-    binlog_->add_raw_event(std::move(raw_event), info);
-  }
-
-  void try_flush() {
-    auto need_flush_since = binlog_->need_flush_since();
-    auto now = Time::now_cached();
-    if (now > need_flush_since + FLUSH_TIMEOUT - 1e-9) {
-      binlog_->flush("try_flush");
-    } else {
-      if (!force_sync_flag_) {
-        flush_flag_ = true;
-        wakeup_at(need_flush_since + FLUSH_TIMEOUT);
-      }
-    }
-  }
-
-  void flush_immediate_sync() {
-    auto seq_no = processor_.max_finished_seq_no();
-    for (auto it = immediate_sync_promises_.begin(), end = immediate_sync_promises_.end();
-         it != end && it->first <= seq_no; it = immediate_sync_promises_.erase(it)) {
-      do_immediate_sync(std::move(it->second));
-    }
-  }
-
-  void do_immediate_sync(Promise<> &&promise) {
-    if (promise) {
-      sync_promises_.emplace_back(std::move(promise));
-    }
-    if (!force_sync_flag_) {
-      force_sync_flag_ = true;
-      wakeup_after(0.003);
-    }
-  }
-
-  void do_lazy_sync(Promise<> &&promise) {
-    if (!promise) {
-      return;
-    }
-    sync_promises_.emplace_back(std::move(promise));
-    if (!lazy_sync_flag_ && !force_sync_flag_) {
-      wakeup_after(30);
-      lazy_sync_flag_ = true;
-    }
-  }
-
-  void timeout_expired() final {
-    bool need_sync = lazy_sync_flag_ || force_sync_flag_;
-    lazy_sync_flag_ = false;
-    force_sync_flag_ = false;
-    bool need_flush = flush_flag_;
-    flush_flag_ = false;
-    wakeup_at_ = 0;
-    if (need_sync) {
-      binlog_->sync("timeout_expired");
-      // LOG(ERROR) << "BINLOG SYNC";
-      set_promises(sync_promises_);
-    } else if (need_flush) {
-      try_flush();
-      // LOG(ERROR) << "BINLOG FLUSH";
-    }
-  }
-};
-}  // namespace detail
-
-ConcurrentBinlog::ConcurrentBinlog() = default;
-ConcurrentBinlog::~ConcurrentBinlog() = default;
-ConcurrentBinlog::ConcurrentBinlog(unique_ptr<Binlog> binlog, int scheduler_id) {
-  init_impl(std::move(binlog), scheduler_id);
-}
-
-Result<BinlogInfo> ConcurrentBinlog::init(string path, const Callback &callback, DbKey db_key, DbKey old_db_key,
-                                          int scheduler_id) {
-  auto binlog = make_unique<Binlog>();
-  TRY_STATUS(binlog->init(std::move(path), callback, std::move(db_key), std::move(old_db_key)));
-  auto info = binlog->get_info();
-  init_impl(std::move(binlog), scheduler_id);
-  return info;
-}
-
-void ConcurrentBinlog::init_impl(unique_ptr<Binlog> binlog, int32 scheduler_id) {
-  path_ = binlog->get_path().str();
-  last_event_id_ = binlog->peek_next_event_id();
-  binlog_actor_ = create_actor_on_scheduler<detail::BinlogActor>(PSLICE() << "Binlog " << path_, scheduler_id,
-                                                                 std::move(binlog), last_event_id_);
-}
-
-void ConcurrentBinlog::close_impl(Promise<> promise) {
-  send_closure(std::move(binlog_actor_), &detail::BinlogActor::close, std::move(promise));
-}
-void ConcurrentBinlog::close_and_destroy_impl(Promise<> promise) {
-  send_closure(std::move(binlog_actor_), &detail::BinlogActor::close_and_destroy, std::move(promise));
-}
-void ConcurrentBinlog::add_raw_event_impl(uint64 event_id, BufferSlice &&raw_event, Promise<> promise,
-                                          BinlogDebugInfo info) {
-  send_closure(binlog_actor_, &detail::BinlogActor::add_raw_event, event_id, std::move(raw_event), std::move(promise),
-               info);
-}
-void ConcurrentBinlog::force_sync(Promise<> promise, const char *source) {
-  send_closure(binlog_actor_, &detail::BinlogActor::force_sync, std::move(promise), source);
-}
-
-void ConcurrentBinlog::force_flush() {
-  send_closure(binlog_actor_, &detail::BinlogActor::force_flush);
-}
-
-void ConcurrentBinlog::change_key(DbKey db_key, Promise<> promise) {
-  send_closure(binlog_actor_, &detail::BinlogActor::change_key, std::move(db_key), std::move(promise));
-}
-
-uint64 ConcurrentBinlog::erase_batch(vector<uint64> event_ids) {
-  auto shift = narrow_cast<int32>(event_ids.size());
-  if (shift == 0) {
-    return 0;
-  }
-  auto seq_no = next_event_id(shift);
-  send_closure(binlog_actor_, &detail::BinlogActor::erase_batch, seq_no, std::move(event_ids));
-  return seq_no;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/ConcurrentBinlog.h b/third-party/td/td/tddb/td/db/binlog/ConcurrentBinlog.h
deleted file mode 100644
index 3fd7560e67..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/ConcurrentBinlog.h
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/binlog/Binlog.h"
-#include "td/db/binlog/BinlogInterface.h"
-#include "td/db/DbKey.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <atomic>
-#include <functional>
-
-namespace td {
-
-namespace detail {
-class BinlogActor;
-}  // namespace detail
-
-class ConcurrentBinlog final : public BinlogInterface {
- public:
-  using Callback = std::function<void(const BinlogEvent &)>;
-  Result<BinlogInfo> init(string path, const Callback &callback, DbKey db_key = DbKey::empty(),
-                          DbKey old_db_key = DbKey::empty(), int scheduler_id = -1) TD_WARN_UNUSED_RESULT;
-
-  ConcurrentBinlog();
-  explicit ConcurrentBinlog(unique_ptr<Binlog> binlog, int scheduler_id = -1);
-  ConcurrentBinlog(const ConcurrentBinlog &) = delete;
-  ConcurrentBinlog &operator=(const ConcurrentBinlog &) = delete;
-  ConcurrentBinlog(ConcurrentBinlog &&) = delete;
-  ConcurrentBinlog &operator=(ConcurrentBinlog &&) = delete;
-  ~ConcurrentBinlog() final;
-
-  void force_sync(Promise<> promise, const char *source) final;
-  void force_flush() final;
-  void change_key(DbKey db_key, Promise<> promise) final;
-
-  uint64 next_event_id() final {
-    return last_event_id_.fetch_add(1, std::memory_order_relaxed);
-  }
-  uint64 next_event_id(int32 shift) final {
-    return last_event_id_.fetch_add(shift, std::memory_order_relaxed);
-  }
-
-  CSlice get_path() const {
-    return path_;
-  }
-
-  uint64 erase_batch(vector<uint64> event_ids) final;
-
- private:
-  void init_impl(unique_ptr<Binlog> binlog, int scheduler_id);
-  void close_impl(Promise<> promise) final;
-  void close_and_destroy_impl(Promise<> promise) final;
-  void add_raw_event_impl(uint64 event_id, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) final;
-
-  ActorOwn<detail::BinlogActor> binlog_actor_;
-  string path_;
-  std::atomic<uint64> last_event_id_{0};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/binlog_dump.cpp b/third-party/td/td/tddb/td/db/binlog/binlog_dump.cpp
deleted file mode 100644
index 93b39d3ba1..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/binlog_dump.cpp
+++ /dev/null
@@ -1,158 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/binlog/Binlog.h"
-
-#include "td/db/DbKey.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_parsers.h"
-
-#include <map>
-
-struct Trie {
-  Trie() {
-    nodes_.resize(1);
-  }
-
-  void add(td::Slice value) {
-    do_add(0, PSLICE() << value << '\0');
-  }
-
-  void dump() {
-    if (nodes_[0].sum == 0) {  // division by zero
-      return;
-    }
-    LOG(PLAIN) << "TOTAL: " << nodes_[0].sum;
-    do_dump("", 0);
-  }
-
- private:
-  struct FullNode {
-    int next[256] = {};
-    int sum = 0;
-  };
-  td::vector<FullNode> nodes_;
-
-  void do_add(int event_id, td::Slice value) {
-    nodes_[event_id].sum++;
-    if (value.empty()) {
-      return;
-    }
-
-    auto c = static_cast<td::uint8>(value[0]);
-    auto next_event_id = nodes_[event_id].next[c];
-    if (next_event_id == 0) {
-      next_event_id = static_cast<int>(nodes_.size());
-      nodes_.emplace_back();
-      nodes_[event_id].next[c] = next_event_id;
-    }
-    do_add(next_event_id, value.substr(1));
-  }
-
-  void do_dump(td::string path, int v) {
-    bool is_word_end = !path.empty() && path.back() == '\0';
-
-    bool need_stop = false;
-    int next_count = 0;
-    for (int c = 0; c < 256; c++) {
-      if (nodes_[v].next[c] != 0) {
-        need_stop |= c >= 128 || !(td::is_alpha(static_cast<char>(c)) || c == '.' || c == '_');
-        next_count++;
-      }
-    }
-    need_stop |= next_count == 0 || (next_count >= 2 && nodes_[v].sum <= nodes_[0].sum / 100);
-
-    if (is_word_end || need_stop) {
-      if (is_word_end) {
-        path.pop_back();
-      } else if (next_count != 1 || nodes_[v].next[0] == 0) {
-        path.push_back('*');
-      }
-      LOG(PLAIN) << nodes_[v].sum << " " << td::StringBuilder::FixedDouble(nodes_[v].sum * 100.0 / nodes_[0].sum, 2)
-                 << "% [" << td::format::escaped(path) << "]";
-      return;
-    }
-    for (int c = 0; c < 256; c++) {
-      auto next_event_id = nodes_[v].next[c];
-      if (next_event_id == 0) {
-        continue;
-      }
-      do_dump(path + static_cast<char>(c), next_event_id);
-    }
-  }
-};
-
-enum Magic { ConfigPmcMagic = 0x1f18, BinlogPmcMagic = 0x4327 };
-
-int main(int argc, char *argv[]) {
-  if (argc < 2) {
-    LOG(PLAIN) << "Usage: binlog_dump <binlog_file_name>";
-    return 1;
-  }
-  td::string binlog_file_name = argv[1];
-  auto r_stat = td::stat(binlog_file_name);
-  if (r_stat.is_error() || r_stat.ok().size_ == 0 || !r_stat.ok().is_reg_) {
-    LOG(PLAIN) << "Wrong binlog file name specified";
-    LOG(PLAIN) << "Usage: binlog_dump <binlog_file_name>";
-    return 1;
-  }
-
-  struct Info {
-    std::size_t full_size = 0;
-    std::size_t compressed_size = 0;
-    Trie trie;
-    Trie compressed_trie;
-  };
-  std::map<td::uint64, Info> info;
-
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(ERROR));
-  td::Binlog binlog;
-  binlog
-      .init(
-          binlog_file_name,
-          [&](auto &event) {
-            info[0].compressed_size += event.raw_event_.size();
-            info[event.type_].compressed_size += event.raw_event_.size();
-            if (event.type_ == ConfigPmcMagic || event.type_ == BinlogPmcMagic) {
-              auto key = td::TlParser(event.get_data()).template fetch_string<td::Slice>();
-              info[event.type_].compressed_trie.add(key);
-            }
-          },
-          td::DbKey::raw_key("cucumber"), td::DbKey::empty(), -1,
-          [&](auto &event) mutable {
-            info[0].full_size += event.raw_event_.size();
-            info[event.type_].full_size += event.raw_event_.size();
-            if (event.type_ == ConfigPmcMagic || event.type_ == BinlogPmcMagic) {
-              auto key = td::TlParser(event.get_data()).template fetch_string<td::Slice>();
-              info[event.type_].trie.add(key);
-            }
-            LOG(PLAIN) << "LogEvent[" << td::tag("event_id", td::format::as_hex(event.id_))
-                       << td::tag("type", event.type_) << td::tag("flags", event.flags_)
-                       << td::tag("size", event.get_data().size())
-                       << td::tag("data", td::format::escaped(event.get_data())) << "]\n";
-          })
-      .ensure();
-
-  for (auto &it : info) {
-    LOG(PLAIN) << td::tag("handler", td::format::as_hex(it.first))
-               << td::tag("full_size", td::format::as_size(it.second.full_size))
-               << td::tag("compressed_size", td::format::as_size(it.second.compressed_size));
-    it.second.trie.dump();
-    if (it.second.full_size != it.second.compressed_size) {
-      it.second.compressed_trie.dump();
-    }
-  }
-
-  return 0;
-}
diff --git a/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsBuffer.cpp b/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsBuffer.cpp
deleted file mode 100644
index fd5794d445..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsBuffer.cpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/binlog/detail/BinlogEventsBuffer.h"
-
-#include <algorithm>
-
-namespace td {
-namespace detail {
-
-void BinlogEventsBuffer::add_event(BinlogEvent &&event) {
-  total_events_++;
-  if ((event.flags_ & BinlogEvent::Flags::Partial) == 0) {
-    auto it = std::find(ids_.begin(), ids_.end(), event.id_);
-    if (it != ids_.end()) {
-      auto &to_event = events_[it - ids_.begin()];
-      size_ -= to_event.size_;
-      to_event = std::move(event);
-      size_ += to_event.size_;
-      return;
-    }
-  }
-  ids_.push_back(event.id_);
-  size_ += event.size_;
-  events_.push_back(std::move(event));
-}
-
-bool BinlogEventsBuffer::need_flush() const {
-  return total_events_ > 5000 || ids_.size() > 100;
-}
-
-void BinlogEventsBuffer::clear() {
-  ids_.clear();
-  events_.clear();
-  total_events_ = 0;
-  size_ = 0;
-}
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsBuffer.h b/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsBuffer.h
deleted file mode 100644
index 5873280c02..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsBuffer.h
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/binlog/BinlogEvent.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-namespace detail {
-
-class BinlogEventsBuffer {
- public:
-  void add_event(BinlogEvent &&event);
-
-  bool need_flush() const;
-
-  template <class CallbackT>
-  void flush(CallbackT &&callback) {
-    for (size_t i = 0; i < ids_.size(); i++) {
-      auto &event = events_[i];
-      if (i + 1 != ids_.size() && (event.flags_ & BinlogEvent::Flags::Partial) == 0) {
-        callback(BinlogEvent(BinlogEvent::create_raw(event.id_, event.type_, event.flags_ | BinlogEvent::Flags::Partial,
-                                                     create_storer(event.get_data())),
-                             BinlogDebugInfo{__FILE__, __LINE__}));
-      } else {
-        callback(std::move(event));
-      }
-    }
-    clear();
-  }
-  size_t size() const {
-    return size_;
-  }
-
- private:
-  vector<uint64> ids_;
-  vector<BinlogEvent> events_;
-  size_t total_events_{0};
-  size_t size_{0};
-
-  void do_event(BinlogEvent &&event);
-  void clear();
-};
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsProcessor.cpp b/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsProcessor.cpp
deleted file mode 100644
index c5ac459df5..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsProcessor.cpp
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/binlog/detail/BinlogEventsProcessor.h"
-
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-#include <algorithm>
-
-namespace td {
-namespace detail {
-
-Status BinlogEventsProcessor::do_event(BinlogEvent &&event) {
-  offset_ = event.offset_;
-  auto fixed_event_id = event.id_ * 2;
-  if ((event.flags_ & BinlogEvent::Flags::Rewrite) && !event_ids_.empty() && event_ids_.back() >= fixed_event_id) {
-    auto it = std::lower_bound(event_ids_.begin(), event_ids_.end(), fixed_event_id);
-    if (it == event_ids_.end() || *it != fixed_event_id) {
-      return Status::Error(PSLICE() << "Ignore rewrite log event " << event.public_to_string());
-    }
-    auto pos = it - event_ids_.begin();
-    total_raw_events_size_ -= static_cast<int64>(events_[pos].raw_event_.size());
-    if (event.type_ == BinlogEvent::ServiceTypes::Empty) {
-      *it += 1;
-      empty_events_++;
-      events_[pos] = {};
-    } else {
-      event.flags_ &= ~BinlogEvent::Flags::Rewrite;
-      total_raw_events_size_ += static_cast<int64>(event.raw_event_.size());
-      events_[pos] = std::move(event);
-    }
-  } else if (event.type_ < 0) {
-    // just skip service events
-  } else {
-    if (!(event_ids_.empty() || event_ids_.back() < fixed_event_id)) {
-      return Status::Error(PSLICE() << offset_ << ' ' << event_ids_.size() << ' ' << event_ids_.back() << ' '
-                                    << fixed_event_id << ' ' << event.public_to_string() << ' ' << total_events_ << ' '
-                                    << total_raw_events_size_);
-    }
-    last_event_id_ = event.id_;
-    total_raw_events_size_ += static_cast<int64>(event.raw_event_.size());
-    total_events_++;
-    event_ids_.push_back(fixed_event_id);
-    events_.emplace_back(std::move(event));
-  }
-
-  if (total_events_ > 10 && empty_events_ * 4 > total_events_ * 3) {
-    compactify();
-  }
-  return Status::OK();
-}
-
-void BinlogEventsProcessor::compactify() {
-  CHECK(event_ids_.size() == events_.size());
-  auto event_ids_from = event_ids_.begin();
-  auto event_ids_to = event_ids_from;
-  auto events_from = events_.begin();
-  auto events_to = events_from;
-  for (; event_ids_from != event_ids_.end(); event_ids_from++, events_from++) {
-    if ((*event_ids_from & 1) == 0) {
-      *event_ids_to++ = *event_ids_from;
-      if (events_to != events_from) {
-        *events_to = std::move(*events_from);
-      }
-      events_to++;
-    }
-  }
-  event_ids_.erase(event_ids_to, event_ids_.end());
-  events_.erase(events_to, events_.end());
-  total_events_ = event_ids_.size();
-  empty_events_ = 0;
-  CHECK(event_ids_.size() == events_.size());
-}
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsProcessor.h b/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsProcessor.h
deleted file mode 100644
index 5496c97ca9..0000000000
--- a/third-party/td/td/tddb/td/db/binlog/detail/BinlogEventsProcessor.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/db/binlog/BinlogEvent.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace detail {
-
-class BinlogEventsProcessor {
- public:
-  Status add_event(BinlogEvent &&event) TD_WARN_UNUSED_RESULT {
-    return do_event(std::move(event));
-  }
-
-  template <class CallbackT>
-  void for_each(CallbackT &&callback) {
-    for (size_t i = 0; i < event_ids_.size(); i++) {
-      LOG_CHECK(i == 0 || event_ids_[i - 1] < event_ids_[i])
-          << event_ids_[i - 1] << " " << events_[i - 1].public_to_string() << " " << event_ids_[i] << " "
-          << events_[i].public_to_string();
-      if ((event_ids_[i] & 1) == 0) {
-        callback(events_[i]);
-      }
-    }
-  }
-
-  uint64 last_event_id() const {
-    return last_event_id_;
-  }
-  int64 offset() const {
-    return offset_;
-  }
-  int64 total_raw_events_size() const {
-    return total_raw_events_size_;
-  }
-
- private:
-  // holds (event_id * 2 + was_deleted)
-  std::vector<uint64> event_ids_;
-  std::vector<BinlogEvent> events_;
-  size_t total_events_{0};
-  size_t empty_events_{0};
-  uint64 last_event_id_{0};
-  int64 offset_{0};
-  int64 total_raw_events_size_{0};
-
-  Status do_event(BinlogEvent &&event);
-  void compactify();
-};
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/detail/RawSqliteDb.cpp b/third-party/td/td/tddb/td/db/detail/RawSqliteDb.cpp
deleted file mode 100644
index db782c1131..0000000000
--- a/third-party/td/td/tddb/td/db/detail/RawSqliteDb.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/detail/RawSqliteDb.h"
-
-#include "sqlite/sqlite3.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/Stat.h"
-
-#include <atomic>
-
-namespace td {
-namespace detail {
-
-static std::atomic<bool> was_database_destroyed{false};
-
-Status RawSqliteDb::last_error(tdsqlite3 *db, CSlice path) {
-  return Status::Error(PSLICE() << Slice(tdsqlite3_errmsg(db)) << " for database \"" << path << '"');
-}
-
-Status RawSqliteDb::destroy(Slice path) {
-  Status error;
-  with_db_path(path, [&](auto path) {
-    unlink(path).ignore();
-    if (!ends_with(path, "-shm") && !stat(path).is_error()) {
-      error = Status::Error(PSLICE() << "Failed to delete file \"" << path << '"');
-    }
-  });
-  return error;
-}
-
-Status RawSqliteDb::last_error() {
-  //If database was corrupted, try to delete it.
-  auto code = tdsqlite3_errcode(db_);
-  if (code == SQLITE_CORRUPT) {
-    was_database_destroyed.store(true, std::memory_order_relaxed);
-    destroy(path_).ignore();
-  }
-
-  return last_error(db_, path());
-}
-
-bool RawSqliteDb::was_any_database_destroyed() {
-  return was_database_destroyed.load(std::memory_order_relaxed);
-}
-
-RawSqliteDb::~RawSqliteDb() {
-  auto rc = tdsqlite3_close(db_);
-  LOG_IF(FATAL, rc != SQLITE_OK) << last_error(db_, path());
-}
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tddb/td/db/detail/RawSqliteDb.h b/third-party/td/td/tddb/td/db/detail/RawSqliteDb.h
deleted file mode 100644
index a61a82fe9d..0000000000
--- a/third-party/td/td/tddb/td/db/detail/RawSqliteDb.h
+++ /dev/null
@@ -1,78 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/optional.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-struct tdsqlite3;
-
-namespace td {
-namespace detail {
-
-class RawSqliteDb {
- public:
-  RawSqliteDb(tdsqlite3 *db, std::string path) : db_(db), path_(std::move(path)) {
-  }
-  RawSqliteDb(const RawSqliteDb &) = delete;
-  RawSqliteDb(RawSqliteDb &&) = delete;
-  RawSqliteDb &operator=(const RawSqliteDb &) = delete;
-  RawSqliteDb &operator=(RawSqliteDb &&) = delete;
-  ~RawSqliteDb();
-
-  template <class F>
-  static void with_db_path(Slice main_path, F &&f) {
-    f(PSLICE() << main_path);
-    f(PSLICE() << main_path << "-journal");
-    f(PSLICE() << main_path << "-wal");
-    f(PSLICE() << main_path << "-shm");
-  }
-  static Status destroy(Slice path) TD_WARN_UNUSED_RESULT;
-
-  tdsqlite3 *db() {
-    return db_;
-  }
-  CSlice path() const {
-    return path_;
-  }
-
-  Status last_error();
-  static Status last_error(tdsqlite3 *db, CSlice path);
-
-  static bool was_any_database_destroyed();
-
-  bool on_begin() {
-    begin_cnt_++;
-    return begin_cnt_ == 1;
-  }
-  Result<bool> on_commit() {
-    if (begin_cnt_ == 0) {
-      return Status::Error("No matching begin for commit");
-    }
-    begin_cnt_--;
-    return begin_cnt_ == 0;
-  }
-
-  void set_cipher_version(int32 cipher_version) {
-    cipher_version_ = cipher_version;
-  }
-
-  optional<int32> get_cipher_version() const {
-    return cipher_version_.copy();
-  }
-
- private:
-  tdsqlite3 *db_;
-  std::string path_;
-  size_t begin_cnt_{0};
-  optional<int32> cipher_version_;
-};
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tde2e/CMakeLists.txt b/third-party/td/td/tde2e/CMakeLists.txt
deleted file mode 100644
index 3e6e91a592..0000000000
--- a/third-party/td/td/tde2e/CMakeLists.txt
+++ /dev/null
@@ -1,86 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-option(TDE2E_ENABLE_INSTALL "Enable installation of the library." ON)
-
-if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
-  set(CMAKE_INSTALL_LIBDIR "lib")
-endif()
-
-set_source_files_properties(${TL_E2E_AUTO_SOURCE} PROPERTIES GENERATED TRUE)
-
-set(TDE2E_SOURCE
-  td/e2e/bip39.cpp
-  td/e2e/BitString.cpp
-  td/e2e/Blockchain.cpp
-  td/e2e/Call.cpp
-  td/e2e/CheckSharedSecret.cpp
-  td/e2e/DecryptedKey.cpp
-  td/e2e/e2e_api.cpp
-  td/e2e/EncryptedKey.cpp
-  td/e2e/EncryptedStorage.cpp
-  td/e2e/Keys.cpp
-  td/e2e/MessageEncryption.cpp
-  td/e2e/Mnemonic.cpp
-  td/e2e/QRHandshake.cpp
-  td/e2e/Trie.cpp
-
-  td/e2e/bip39.h
-  td/e2e/BitString.h
-  td/e2e/Blockchain.h
-  td/e2e/Call.h
-  td/e2e/CheckSharedSecret.h
-  td/e2e/Container.h
-  td/e2e/DecryptedKey.h
-  td/e2e/e2e_api.h
-  td/e2e/e2e_errors.h
-  td/e2e/EncryptedKey.h
-  td/e2e/EncryptedStorage.h
-  td/e2e/Keys.h
-  td/e2e/MessageEncryption.h
-  td/e2e/Mnemonic.h
-  td/e2e/QRHandshake.h
-  td/e2e/Trie.h
-  td/e2e/utils.h
-
-  ${TL_E2E_AUTO_SOURCE}
-
-  ../td/tl/TlObject.h
-  ../td/tl/tl_object_parse.h
-  ../td/tl/tl_object_store.h
-)
-
-set(TDE2E_TEST_SOURCE
-        ${CMAKE_CURRENT_SOURCE_DIR}/td/e2e/TestBlockchain.cpp
-        ${CMAKE_CURRENT_SOURCE_DIR}/td/e2e/TestBlockchain.h
-        ${CMAKE_CURRENT_SOURCE_DIR}/test/blockchain.cpp
-        ${CMAKE_CURRENT_SOURCE_DIR}/test/e2e.cpp
-        ${CMAKE_CURRENT_SOURCE_DIR}/test/encryption.cpp
-        ${CMAKE_CURRENT_SOURCE_DIR}/test/EncryptionTestVectors.h
-)
-
-set(TDE2E_TEST_SOURCE "${TDE2E_TEST_SOURCE}" PARENT_SCOPE)
-
-add_library(tde2e STATIC ${TDE2E_SOURCE})
-if (NOT CMAKE_CROSSCOMPILING)
-  add_dependencies(tde2e tl_generate_common)
-endif()
-target_link_libraries(tde2e PUBLIC tdutils PRIVATE ${OPENSSL_CRYPTO_LIBRARY} ${CMAKE_DL_LIBS} ${ZLIB_LIBRARIES})
-target_include_directories(tde2e SYSTEM PRIVATE $<BUILD_INTERFACE:${OPENSSL_INCLUDE_DIR}>)
-target_include_directories(tde2e PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>/..)
-target_include_directories(tde2e PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-target_include_directories(tde2e PUBLIC $<BUILD_INTERFACE:${TL_TD_AUTO_INCLUDE_DIR}>)
-
-add_executable(test-e2e EXCLUDE_FROM_ALL
-  ${TDE2E_TEST_SOURCE}
-  ../test/main.cpp)
-target_link_libraries(test-e2e PRIVATE tde2e)
-
-
-if (TDE2E_ENABLE_INSTALL)
-  install(TARGETS tde2e EXPORT TdStaticTargets
-    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  )
-endif()
diff --git a/third-party/td/td/tde2e/td/e2e/BitString.cpp b/third-party/td/td/tde2e/td/e2e/BitString.cpp
deleted file mode 100644
index 4ad1a8c777..0000000000
--- a/third-party/td/td/tde2e/td/e2e/BitString.cpp
+++ /dev/null
@@ -1,355 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/BitString.h"
-
-#include "td/utils/bits.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#ifndef TG_ENGINE
-#include "td/utils/ThreadSafeCounter.h"
-#endif
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-
-#include <algorithm>
-#include <cstring>
-
-namespace tde2e_core {
-
-namespace {
-td::uint8 begin_mask(size_t start_bit) {
-  return 0xFF >> start_bit;
-}
-td::uint8 end_mask(size_t end_bit) {
-  return static_cast<td::uint8>(0xFF << (8 - end_bit));
-}
-td::uint8 create_mask(size_t start_bit, size_t end_bit) {
-  return begin_mask(start_bit) & end_mask(end_bit);
-}
-
-size_t count_common_bits(td::uint8 byte1, td::uint8 byte2, size_t start_bit, size_t end_bit) {
-  return td::count_leading_zeroes32(((byte1 ^ byte2) & begin_mask(start_bit)) >> (8 - end_bit)) +
-         (end_bit - start_bit) - 32;
-}
-#ifndef TG_ENGINE
-td::NamedThreadSafeCounter::CounterRef &get_bit_string_counter() {
-  static auto counter = td::NamedThreadSafeCounter::get_default().get_counter("BitString");
-  return counter;
-}
-#endif
-}  // namespace
-
-td::int64 BitString::get_counter_value() {
-  return 0;
-}
-
-BitString::BitString(size_t bits) : BitString(nullptr, 0, bits) {
-}
-
-BitString::BitString(std::shared_ptr<char> ptr, size_t offset, size_t size) {
-  size_t begin = offset;
-  size_t end = offset + size;
-
-  size_t begin_byte = (begin + 7) / 8;
-  size_t end_byte = end / 8;
-
-  bits_size_ = size;
-  bytes_size_ = static_cast<td::int32>(end_byte) - static_cast<td::int32>(begin_byte);
-  begin_bit_ = begin % 8;
-  end_bit_ = end % 8;
-  CHECK(bytes_size_ != -1 || (begin_bit_ && end_bit_));
-  if (!ptr) {
-    auto full_size = bytes_size_ + (begin_bit_ != 0) + (end_bit_ != 0);
-    ptr = std::shared_ptr<char>(new char[full_size], std::default_delete<char[]>());
-    td::MutableSlice(ptr.get(), full_size).fill_zero();
-#ifndef TG_ENGINE
-    get_bit_string_counter().add(+1);
-#endif
-    data_ = std::shared_ptr<char>(ptr, ptr.get() + (begin_bit_ != 0));
-  } else {
-    data_ = std::shared_ptr<char>(ptr, ptr.get() + begin_byte);
-  }
-}
-
-BitString::BitString(td::Slice key_data) : BitString(nullptr, 0, key_data.size() * 8) {
-  td::MutableSlice(data_.get(), key_data.size()).copy_from(key_data);
-}
-
-BitString::~BitString() {
-  if (data_.use_count() == 1) {
-#ifndef TG_ENGINE
-    get_bit_string_counter().add(-1);
-#endif
-  }
-}
-
-BitString &BitString::operator=(const BitString &other) {
-  if (&other == this) {
-    return *this;
-  }
-  LOG_CHECK(!data_) << static_cast<void *>(data_.get());
-  data_ = other.data_;
-  bits_size_ = other.bits_size_;
-  bytes_size_ = other.bytes_size_;
-  begin_bit_ = other.begin_bit_;
-  end_bit_ = other.end_bit_;
-  return *this;
-}
-
-BitString &BitString::operator=(BitString &&other) noexcept {
-  LOG_CHECK(!data_) << static_cast<void *>(data_.get());
-  data_ = std::move(other.data_);
-  bits_size_ = other.bits_size_;
-  bytes_size_ = other.bytes_size_;
-  begin_bit_ = other.begin_bit_;
-  end_bit_ = other.end_bit_;
-  return *this;
-}
-
-size_t BitString::bit_length() const {
-  return bits_size_;
-}
-
-td::uint8 BitString::get_bit(size_t pos) const {
-  CHECK(pos < bit_length());
-  size_t absolute_bit_pos = pos + begin_bit_;
-  size_t byte_index = absolute_bit_pos / 8 - (begin_bit_ != 0);
-  size_t bit_index = 7 - (absolute_bit_pos % 8);  // Big-endian bit order
-  return (data_.get()[byte_index] >> bit_index) & 1;
-}
-
-bool BitString::operator==(const BitString &other) const {
-  if (bit_length() != other.bit_length()) {
-    return false;
-  }
-  if (bit_length() == 0) {
-    return true;
-  }
-  CHECK(begin_bit_ == other.begin_bit_);
-  CHECK(bytes_size_ == other.bytes_size_);
-  CHECK(end_bit_ == other.end_bit_);
-
-  auto ptr1 = data_.get();
-  auto ptr2 = other.data_.get();
-  if (bytes_size_ == -1) {
-    td::uint8 mask = create_mask(begin_bit_, end_bit_);
-    return (ptr1[-1] & mask) == (ptr2[-1] & mask);
-  }
-
-  if (begin_bit_ != 0) {
-    td::uint8 first_byte_mask = begin_mask(begin_bit_);
-    if ((ptr1[-1] & first_byte_mask) != (ptr2[-1] & first_byte_mask)) {
-      return false;
-    }
-  }
-
-  if (end_bit_ != 0) {
-    td::uint8 last_byte_mask = end_mask(end_bit_);
-    if ((ptr1[bytes_size_] & last_byte_mask) != (ptr2[bytes_size_] & last_byte_mask)) {
-      return false;
-    }
-  }
-
-  return std::memcmp(ptr1, ptr2, bytes_size_) == 0;
-}
-
-size_t BitString::common_prefix_length(const BitString &other) const {
-  CHECK(begin_bit_ == other.begin_bit_);
-  //CHECK(bytes_size_ == other.bytes_size_);
-  //CHECK(end_bit_ == other.end_bit_);
-
-  td::uint8 begin_bit;
-  td::uint8 end_bit;
-  td::int32 bytes_size;
-  auto min_length = std::min(bit_length(), other.bit_length());
-  if (bit_length() < other.bit_length()) {
-    begin_bit = begin_bit_;
-    end_bit = end_bit_;
-    bytes_size = bytes_size_;
-  } else {
-    begin_bit = other.begin_bit_;
-    end_bit = other.end_bit_;
-    bytes_size = other.bytes_size_;
-  }
-
-  auto ptr1 = data_.get();
-  auto ptr2 = other.data_.get();
-
-  if (bytes_size == -1) {
-    auto res = count_common_bits(ptr1[-1], ptr2[-1], begin_bit, end_bit);
-    CHECK(res <= min_length);
-    return res;
-  }
-
-  size_t res = 0;
-
-  if (begin_bit != 0) {
-    td::uint8 first_byte_mask = begin_mask(begin_bit);
-    td::uint8 byte1 = ptr1[-1] & first_byte_mask;
-    td::uint8 byte2 = ptr2[-1] & first_byte_mask;
-    if (byte1 != byte2) {
-      res += count_common_bits(byte1, byte2, begin_bit, 8);
-      CHECK(res <= min_length);
-      return res;
-    }
-    res += 8 - begin_bit;
-  }
-
-  size_t first_diff = std::mismatch(ptr1, ptr1 + bytes_size, ptr2).first - ptr1;
-  res += first_diff * 8;
-  if (td::narrow_cast<int>(first_diff) != bytes_size) {
-    res += count_common_bits(ptr1[first_diff], ptr2[first_diff], 0, 8);
-    CHECK(res <= min_length);
-    return res;
-  }
-
-  if (end_bit != 0) {
-    res += count_common_bits(ptr1[bytes_size], ptr2[bytes_size], 0, end_bit);
-    CHECK(res <= min_length);
-    return res;
-  }
-  CHECK(res <= min_length);
-  return res;
-}
-
-BitString BitString::substr(size_t pos, size_t length) const {
-  auto size = bit_length();
-  CHECK(pos <= size);
-  size_t new_length = std::min(length, size - pos);
-  return BitString(std::shared_ptr<char>(data_, data_.get() - (begin_bit_ != 0)), begin_bit_ + pos, new_length);
-}
-
-template <class StorerT>
-void store(const BitString &bs, StorerT &storer) {
-  using td::store;
-  auto ptr = bs.data_.get();
-
-  store(static_cast<td::uint32>((static_cast<td::uint16>(bs.begin_bit_) << 16) |
-                                static_cast<td::uint16>(bs.begin_bit_ + bs.bit_length())),
-        storer);
-
-  size_t n = 0;
-  if (bs.bytes_size_ == -1) {
-    td::uint8 mask = create_mask(bs.begin_bit_, bs.end_bit_);
-    storer.store_binary(static_cast<td::uint8>(ptr[-1] & mask));
-    n = 1;
-  } else {
-    if (bs.begin_bit_ != 0) {
-      td::uint8 first_byte_mask = begin_mask(bs.begin_bit_);
-      storer.store_binary(static_cast<td::uint8>(ptr[-1] & first_byte_mask));
-      n++;
-    }
-
-    storer.store_slice(td::Slice(ptr, bs.bytes_size_));
-    n += bs.bytes_size_;
-
-    if (bs.end_bit_ != 0) {
-      auto last_byte_mask = end_mask(bs.end_bit_);
-      storer.store_binary(static_cast<td::uint8>(ptr[bs.bytes_size_] & last_byte_mask));
-      n++;
-    }
-  }
-  while (n % 4 != 0) {
-    storer.store_binary(static_cast<td::uint8>(0));
-    n++;
-  }
-}
-
-template <class ParserT>
-BitString fetch_bit_string(ParserT &parser) {
-  BitString base_bs;
-  return fetch_bit_string(parser, base_bs);
-}
-
-template <class ParserT>
-BitString fetch_bit_string(ParserT &parser, BitString &base_bs) {
-  using td::parse;
-  td::uint32 begin_end;
-  parse(begin_end, parser);
-
-  size_t begin = begin_end >> 16;
-  size_t end = begin_end & 0xFFFF;
-  auto bs = base_bs.data_ ? base_bs.substr(0, end - begin) : BitString(nullptr, begin, end - begin);
-
-  auto ptr = bs.data_.get();
-
-  size_t n = 0;
-  td::uint8 byte;
-  if (bs.bytes_size_ == -1) {
-    td::uint8 mask = create_mask(bs.begin_bit_, bs.end_bit_);
-    byte = parser.template fetch_binary<td::uint8>();
-    ptr[-1] |= byte & mask;
-    n = 1;
-  } else {
-    if (bs.begin_bit_ != 0) {
-      byte = parser.template fetch_binary<td::uint8>();
-      td::uint8 first_byte_mask = begin_mask(bs.begin_bit_);
-      ptr[-1] |= byte & first_byte_mask;
-      n++;
-    }
-
-    td::MutableSlice(ptr, bs.bytes_size_).copy_from(parser.template fetch_string_raw<td::Slice>(bs.bytes_size_));
-    n += bs.bytes_size_;
-
-    if (bs.end_bit_ != 0) {
-      byte = parser.template fetch_binary<td::uint8>();
-      auto last_byte_mask = end_mask(bs.end_bit_);
-      ptr[bs.bytes_size_] |= byte & last_byte_mask;
-      n++;
-    }
-  }
-  while (n % 4 != 0) {
-    byte = parser.template fetch_binary<td::uint8>();
-    n++;
-  }
-  return bs;
-}
-template void store<td::TlStorerUnsafe>(const BitString &bs, td::TlStorerUnsafe &storer);
-template void store<td::TlStorerCalcLength>(const BitString &bs, td::TlStorerCalcLength &storer);
-
-template BitString fetch_bit_string<td::TlParser>(td::TlParser &fetch_bit_stringr);
-template BitString fetch_bit_string<td::TlParser>(td::TlParser &fetch_bit_stringr, BitString &base_bs);
-
-td::Result<std::string> BitString::serialize_for_network(const BitString &bs) {
-  td::TlStorerCalcLength calc_length;
-  store(bs, calc_length);
-  std::string buf(calc_length.get_length(), 0);
-  td::TlStorerUnsafe storer(td::MutableSlice(buf).ubegin());
-  store(bs, storer);
-  return buf;
-}
-td::Result<BitString> BitString::fetch_from_network(td::Slice data) {
-  td::TlParser parser(data);
-  auto res = fetch_bit_string(parser);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-  return res;
-}
-
-std::ostream &operator<<(std::ostream &os, const BitString &bits) {
-  os << static_cast<td::uint32>(bits.begin_bit_) << ' ' << bits.bytes_size_ << ' '
-     << static_cast<td::uint32>(bits.end_bit_) << ' ';
-  for (size_t i = 0; i < bits.bit_length(); ++i) {
-    os << static_cast<int>(bits.get_bit(i));
-  }
-  os << ' ' << bits.data_.get();
-  return os;
-}
-
-td::StringBuilder &operator<<(td::StringBuilder &string_builder, const BitString &bits) {
-  string_builder << static_cast<td::uint32>(bits.begin_bit_) << ' ' << bits.bytes_size_ << ' '
-                 << static_cast<td::uint32>(bits.end_bit_) << ' ';
-  for (size_t i = 0; i < bits.bit_length(); ++i) {
-    string_builder << static_cast<int>(bits.get_bit(i));
-  }
-  string_builder << ' ' << bits.data_.get();
-  return string_builder;
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/BitString.h b/third-party/td/td/tde2e/td/e2e/BitString.h
deleted file mode 100644
index b58823d116..0000000000
--- a/third-party/td/td/tde2e/td/e2e/BitString.h
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/utils.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <memory>
-#include <ostream>
-
-namespace tde2e_core {
-
-class BitString {
- public:
-  static td::int64 get_counter_value();
-  BitString() = default;
-  explicit BitString(size_t bits);
-  BitString(std::shared_ptr<char> ptr, size_t offset, size_t size);
-  explicit BitString(td::Slice key_data);
-  BitString(const BitString &) = default;
-  BitString &operator=(const BitString &other);
-  BitString(BitString &&) noexcept = default;
-  BitString &operator=(BitString &&other) noexcept;
-  ~BitString();
-
-  size_t bit_length() const;
-  td::uint8 get_bit(size_t pos) const;
-
-  bool operator==(const BitString &other) const;
-  size_t common_prefix_length(const BitString &other) const;
-  BitString substr(size_t pos, size_t length = SIZE_MAX) const;
-
-  friend std::ostream &operator<<(std::ostream &os, const BitString &bits);
-  friend td::StringBuilder &operator<<(td::StringBuilder &string_builder, const BitString &bits);
-
-  template <class StorerT>
-  friend void store(const BitString &bs, StorerT &storer);
-  template <class ParserT>
-  friend BitString fetch_bit_string(ParserT &parser);
-  template <class ParserT>
-  friend BitString fetch_bit_string(ParserT &parser, BitString &base_bs);
-
-  static td::Result<std::string> serialize_for_network(const BitString &bs);
-  static td::Result<BitString> fetch_from_network(td::Slice data);
-
-  // TODO: make following fields private
-  std::shared_ptr<char> data_;
-  size_t bits_size_{};
-  td::int32 bytes_size_{};
-  td::uint8 begin_bit_{};
-  td::uint8 end_bit_{};
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Blockchain.cpp b/third-party/td/td/tde2e/td/e2e/Blockchain.cpp
deleted file mode 100644
index ffa2d250dd..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Blockchain.cpp
+++ /dev/null
@@ -1,823 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/Blockchain.h"
-
-#include "td/e2e/Keys.h"
-
-#include "td/telegram/e2e_api.hpp"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/misc.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_parsers.h"
-
-#include <algorithm>
-#include <limits>
-#include <map>
-#include <set>
-#include <tuple>
-#include <utility>
-
-namespace tde2e_core {
-
-GroupParticipant GroupParticipant::from_tl(const td::e2e_api::e2e_chain_groupParticipant &participant) {
-  return GroupParticipant{participant.user_id_, participant.flags_, PublicKey::from_u256(participant.public_key_),
-                          participant.version_};
-}
-
-e2e::object_ptr<e2e::e2e_chain_groupParticipant> GroupParticipant::to_tl() const {
-  return e2e::make_object<e2e::e2e_chain_groupParticipant>(user_id, public_key.to_u256(), flags, add_users(),
-                                                           remove_users(), version);
-}
-
-td::int32 GroupState::version() const {
-  if (participants.empty()) {
-    return 0;
-  }
-  td::int32 version = participants.front().version;
-  for (auto &participant : participants) {
-    version = std::min(version, participant.version);
-  }
-  return std::clamp(version, 0, 255);
-}
-
-td::Result<GroupParticipant> GroupState::get_participant(td::int64 user_id) const {
-  for (const auto &participant : participants) {
-    if (participant.user_id == user_id) {
-      return participant;
-    }
-  }
-  return td::Status::Error("Participant not found");
-}
-
-td::Result<GroupParticipant> GroupState::get_participant(const PublicKey &public_key) const {
-  for (const auto &participant : participants) {
-    if (participant.public_key == public_key) {
-      return participant;
-    }
-  }
-  return td::Status::Error("Participant not found");
-}
-
-Permissions GroupState::get_permissions(const PublicKey &public_key, td::int32 limit_permissions) const {
-  limit_permissions &= GroupParticipantFlags::AllPermissions;
-  auto r_participant = get_participant(public_key);
-  if (r_participant.is_ok()) {
-    return Permissions{(r_participant.ok().flags & limit_permissions) | GroupParticipantFlags::IsParticipant};
-  }
-  return Permissions{(external_permissions & limit_permissions)};
-}
-
-GroupStateRef GroupState::from_tl(const td::e2e_api::e2e_chain_groupState &state) {
-  auto participant_from_tl = [](const td::e2e_api::object_ptr<td::e2e_api::e2e_chain_groupParticipant> &participant) {
-    return GroupParticipant::from_tl(*participant);
-  };
-  td::optional<td::int32> external_permissions{};
-  return std::make_shared<GroupState>(
-      GroupState{td::transform(state.participants_, participant_from_tl), state.external_permissions_});
-}
-
-e2e::object_ptr<e2e::e2e_chain_groupState> GroupState::to_tl() const {
-  return e2e::make_object<e2e::e2e_chain_groupState>(
-      td::transform(participants, [](const GroupParticipant &participant) { return participant.to_tl(); }),
-      external_permissions);
-}
-
-GroupStateRef GroupState::empty_state() {
-  static GroupStateRef state = std::make_shared<GroupState>();
-  return state;
-}
-
-GroupSharedKeyRef GroupSharedKey::from_tl(const td::e2e_api::e2e_chain_sharedKey &shared_key) {
-  return std::make_shared<GroupSharedKey>(GroupSharedKey{PublicKey::from_u256(shared_key.ek_),
-                                                         shared_key.encrypted_shared_key_, shared_key.dest_user_id_,
-                                                         shared_key.dest_header_});
-}
-
-e2e::object_ptr<e2e::e2e_chain_sharedKey> GroupSharedKey::to_tl() const {
-  return e2e::make_object<e2e::e2e_chain_sharedKey>(ek.to_u256(), encrypted_shared_key,
-                                                    std::vector<td::int64>(dest_user_id), std::vector(dest_header));
-}
-
-GroupSharedKeyRef GroupSharedKey::empty_shared_key() {
-  static GroupSharedKeyRef shared_key = std::make_shared<GroupSharedKey>();
-  return shared_key;
-}
-
-ChangeSetValue ChangeSetValue::from_tl(const td::e2e_api::e2e_chain_changeSetValue &change) {
-  return ChangeSetValue{change.key_, change.value_};
-}
-
-e2e::object_ptr<e2e::e2e_chain_changeSetValue> ChangeSetValue::to_tl() const {
-  return e2e::make_object<e2e::e2e_chain_changeSetValue>(key, value);
-}
-
-ChangeSetGroupState ChangeSetGroupState::from_tl(const td::e2e_api::e2e_chain_changeSetGroupState &change) {
-  return ChangeSetGroupState{GroupState::from_tl(*change.group_state_)};
-}
-
-e2e::object_ptr<e2e::e2e_chain_changeSetGroupState> ChangeSetGroupState::to_tl() const {
-  return e2e::make_object<e2e::e2e_chain_changeSetGroupState>(group_state->to_tl());
-}
-
-ChangeSetSharedKey ChangeSetSharedKey::from_tl(const td::e2e_api::e2e_chain_changeSetSharedKey &change) {
-  return ChangeSetSharedKey{GroupSharedKey::from_tl(*change.shared_key_)};
-}
-
-e2e::object_ptr<e2e::e2e_chain_changeSetSharedKey> ChangeSetSharedKey::to_tl() const {
-  return e2e::make_object<e2e::e2e_chain_changeSetSharedKey>(shared_key->to_tl());
-}
-
-Change Change::from_tl(const td::e2e_api::e2e_chain_Change &change) {
-  Change res;
-  downcast_call(
-      const_cast<td::e2e_api::e2e_chain_Change &>(change),
-      td::overloaded(
-          [&](td::e2e_api::e2e_chain_changeNoop &change_t) { res.value = ChangeNoop::from_tl(change_t); },
-          [&](td::e2e_api::e2e_chain_changeSetValue &change_t) { res.value = ChangeSetValue::from_tl(change_t); },
-          [&](td::e2e_api::e2e_chain_changeSetGroupState &change_t) {
-            res.value = ChangeSetGroupState::from_tl(change_t);
-          },
-          [&](td::e2e_api::e2e_chain_changeSetSharedKey &change_t) {
-            res.value = ChangeSetSharedKey::from_tl(change_t);
-          }));
-  return res;
-}
-
-e2e::object_ptr<e2e::e2e_chain_Change> Change::to_tl() const {
-  return std::visit(
-      td::overloaded(
-          [](const ChangeNoop &change) -> td::e2e_api::object_ptr<e2e::e2e_chain_Change> { return change.to_tl(); },
-          [](const ChangeSetValue &change) -> td::e2e_api::object_ptr<e2e::e2e_chain_Change> { return change.to_tl(); },
-          [](const ChangeSetGroupState &change) -> td::e2e_api::object_ptr<e2e::e2e_chain_Change> {
-            return change.to_tl();
-          },
-          [](const ChangeSetSharedKey &change) -> td::e2e_api::object_ptr<e2e::e2e_chain_Change> {
-            return change.to_tl();
-          }),
-      value);
-}
-
-td::UInt256 Block::calc_hash() const {
-  if (height_ == -1) {
-    return {};
-  }
-  auto serialized_block = serialize_boxed(*to_tl());
-  td::UInt256 hash;
-  td::sha256(serialized_block, hash.as_mutable_slice());
-  return hash;
-}
-
-Block Block::from_tl(const e2e::e2e_chain_block &block) {
-  Block result;
-  result.state_proof_ = StateProof::from_tl(*block.state_proof_);
-  if (block.flags_ & 1) {
-    result.o_signature_public_key_ = PublicKey::from_u256(block.signature_public_key_);
-  }
-  result.signature_ = Signature::from_u512(block.signature_);
-  result.prev_block_hash_ = block.prev_block_hash_;
-  auto change_from_tl = [&](auto &obj) {
-    return Change::from_tl(*obj);
-  };
-  result.changes_ = td::transform(block.changes_, change_from_tl);
-  result.height_ = block.height_;
-  return result;
-}
-
-td::Result<Block> Block::from_tl_serialized(td::Slice new_block) {
-  td::TlParser parser(new_block);
-  auto magic = parser.fetch_int();
-  if (magic != td::e2e_api::e2e_chain_block::ID) {
-    return td::Status::Error(PSLICE() << "Expected magic " << td::format::as_hex(td::e2e_api::e2e_chain_block::ID)
-                                      << ", but received " << td::format::as_hex(magic));
-  }
-  auto block_tl = td::e2e_api::e2e_chain_block::fetch(parser);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-  return from_tl(*block_tl);
-}
-
-e2e::object_ptr<e2e::e2e_chain_block> Block::to_tl() const {
-  td::int32 flags{};
-  auto state_proof = state_proof_.to_tl();
-  td::UInt256 public_key{};
-  if (o_signature_public_key_) {
-    public_key = o_signature_public_key_.value().to_u256();
-    flags |= e2e::e2e_chain_block::SIGNATURE_PUBLIC_KEY_MASK;
-  }
-  auto changes = td::transform(changes_, [](const auto &change) { return change.to_tl(); });
-
-  return e2e::make_object<e2e::e2e_chain_block>(signature_.to_u512(), flags, prev_block_hash_, std::move(changes),
-                                                height_, std::move(state_proof), public_key);
-}
-
-std::string Block::to_tl_serialized() const {
-  return serialize_boxed(*to_tl());
-}
-
-td::StringBuilder &operator<<(td::StringBuilder &sb, const Block &block) {
-  return sb << "Block(sign=" << block.signature_
-            << "..., prev_hash=" << hex_encode(block.prev_block_hash_.as_slice().substr(0, 8))
-            << "\theight=" << block.height_ << " \n"
-            << "\tproof=" << block.state_proof_ << "\n"
-            << "\tchanges=" << block.changes_ << "\n"
-            << "\tsignature_key=" << block.o_signature_public_key_ << ")";
-}
-
-td::Result<BitString> key_to_bitstring(td::Slice key) {
-  if (key.size() != 32) {
-    return td::Status::Error("Invalid key size");
-  }
-  return BitString(key);
-}
-
-td::Result<std::string> KeyValueState::get_value(td::Slice key) const {
-  TRY_RESULT(bitstring, key_to_bitstring(key));
-  return get(node_, bitstring, snapshot_.value());
-}
-
-td::Result<std::string> KeyValueState::gen_proof(td::Span<td::Slice> keys) const {
-  // TODO: validate keys..
-  TRY_RESULT(pruned_tree, generate_pruned_tree(node_, keys, snapshot_.value()));
-  return TrieNode::serialize_for_network(pruned_tree);
-}
-
-td::Result<KeyValueState> KeyValueState::create_from_hash(KeyValueHash hash) {
-  auto node = std::make_shared<TrieNode>(hash.hash);
-  return KeyValueState{std::move(node), td::Slice()};
-}
-
-td::Result<KeyValueState> KeyValueState::create_from_snapshot(td::Slice snapshot) {
-  TRY_RESULT(node, TrieNode::fetch_from_snapshot(snapshot));
-  return KeyValueState{std::move(node), snapshot};
-}
-
-td::Result<std::string> KeyValueState::build_snapshot() const {
-  return TrieNode::serialize_for_snapshot(node_, snapshot_.value());
-}
-
-td::Status KeyValueState::set_value(td::Slice key, td::Slice value) {
-  TRY_RESULT(bitstring, key_to_bitstring(key));
-  TRY_RESULT_ASSIGN(node_, set(node_, bitstring, value, snapshot_.value()));
-  return td::Status::OK();
-}
-
-td::UInt256 KeyValueState::get_hash() const {
-  //TODO: hash of public key
-  return node_->hash;
-}
-
-StateProof StateProof::from_tl(const td::e2e_api::e2e_chain_stateProof &proof) {
-  StateProof res;
-  res.kv_hash = KeyValueHash{proof.kv_hash_};
-  if (proof.group_state_) {
-    res.o_group_state = GroupState::from_tl(*proof.group_state_);
-  }
-  if (proof.shared_key_) {
-    res.o_shared_key = GroupSharedKey::from_tl(*proof.shared_key_);
-  }
-  return res;
-}
-
-e2e::object_ptr<e2e::e2e_chain_stateProof> StateProof::to_tl() const {
-  td::int32 flags{};
-  e2e::object_ptr<e2e::e2e_chain_groupState> o_group_state_tl;
-  if (o_group_state) {
-    o_group_state_tl = o_group_state.value()->to_tl();
-    flags |= td::e2e_api::e2e_chain_stateProof::GROUP_STATE_MASK;
-  }
-  e2e::object_ptr<e2e::e2e_chain_sharedKey> o_shared_key_tl;
-  if (o_shared_key) {
-    o_shared_key_tl = o_shared_key.value()->to_tl();
-    flags |= td::e2e_api::e2e_chain_stateProof::SHARED_KEY_MASK;
-  }
-
-  return e2e::make_object<e2e::e2e_chain_stateProof>(flags, kv_hash.hash, std::move(o_group_state_tl),
-                                                     std::move(o_shared_key_tl));
-}
-
-td::StringBuilder &operator<<(td::StringBuilder &sb, const StateProof &state) {
-  sb << "StateProof{";
-  sb << "\n\tkv=" << td::format::as_hex_dump<0>(state.kv_hash.hash.as_slice().substr(0, 8));
-  if (state.o_group_state) {
-    sb << "\n\tgroup=" << **state.o_group_state;
-  }
-  if (state.o_shared_key) {
-    sb << "\n\tgroup=" << **state.o_shared_key;
-  }
-  return sb << "}";
-}
-
-State State::create_empty() {
-  return State{KeyValueState{}, GroupState::empty_state(), GroupSharedKey::empty_shared_key()};
-}
-
-td::Status State::set_value(td::Slice key, td::Slice value, const Permissions &permissions) {
-  if (!permissions.may_set_value()) {
-    return Error(E::InvalidBlock_NoPermissions, "Can't set value");
-  }
-  return key_value_state_.set_value(key, value);
-}
-
-td::Status State::set_value_fast(const KeyValueHash &key_value_hash) {
-  TRY_RESULT_ASSIGN(key_value_state_, KeyValueState::create_from_hash(key_value_hash));
-  return td::Status::OK();
-}
-
-td::Status State::validate_group_state(const GroupStateRef &group_state) {
-  std::set<td::int64> new_user_ids;
-  std::set<PublicKey> new_keys;
-  for (const auto &p : group_state->participants) {
-    new_user_ids.insert(p.user_id);
-    new_keys.insert(p.public_key);
-    if ((p.flags & ~GroupParticipantFlags::AllPermissions) != 0) {
-      return Error(E::InvalidBlock_InvalidGroupState, "invalid permissions");
-    }
-  }
-  if ((group_state->external_permissions & ~GroupParticipantFlags::AllPermissions) != 0) {
-    return Error(E::InvalidBlock_InvalidGroupState, "invalid external permissions");
-  }
-  if (new_user_ids.size() != group_state->participants.size()) {
-    return Error(E::InvalidBlock_InvalidGroupState, "duplicate user_id");
-  }
-  if (new_keys.size() != group_state->participants.size()) {
-    return Error(E::InvalidBlock_InvalidGroupState, "duplicate public_key");
-  }
-  return td::Status::OK();
-}
-
-td::Status State::set_group_state(GroupStateRef group_state, const Permissions &permissions) {
-  TRY_STATUS(validate_group_state(group_state));
-
-  std::map<std::pair<td::int64, PublicKey>, td::int32> old_participants;
-  std::map<std::pair<td::int64, PublicKey>, td::int32> new_participants;
-
-  for (const auto &p : group_state_->participants) {
-    old_participants[std::make_pair(p.user_id, p.public_key)] = p.flags;
-  }
-  for (const auto &p : group_state->participants) {
-    new_participants[std::make_pair(p.user_id, p.public_key)] = p.flags;
-  }
-  if ((~group_state_->external_permissions & group_state->external_permissions) != 0) {
-    return Error(E::InvalidBlock_NoPermissions, "Can't increase external permissions");
-  }
-
-  td::int32 needed_flags = 0;
-  for (const auto &[p, flags] : old_participants) {
-    if (!new_participants.count(p)) {
-      if (!permissions.may_remove_users()) {
-        return Error(E::InvalidBlock_NoPermissions, "Can't remove users");
-      }
-    }
-  }
-  for (const auto &[p, flags] : new_participants) {
-    auto old_p = old_participants.find(p);
-    if (old_p == old_participants.end()) {
-      if (!permissions.may_add_users()) {
-        return Error(E::InvalidBlock_NoPermissions, "Can't add users");
-      }
-      needed_flags |= flags;
-    } else if (flags != old_p->second) {
-      if (!permissions.may_add_users() || !permissions.may_remove_users()) {
-        return Error(E::InvalidBlock_NoPermissions, "Can't add users");
-      }
-      needed_flags |= flags & ~old_p->second;
-    }
-  }
-
-  td::int32 missing_flags = needed_flags & ~(permissions.flags & GroupParticipantFlags::AllPermissions);
-  if (missing_flags != 0) {
-    return Error(E::InvalidBlock_NoPermissions, "Can't give more permissions than we have");
-  }
-  group_state_ = std::move(group_state);
-  return td::Status::OK();
-}
-
-td::Status State::clear_shared_key(const Permissions &permissions) {
-  if (!permissions.may_change_shared_key()) {
-    return Error(E::InvalidBlock_NoPermissions, "Can't clear shared key");
-  }
-  shared_key_ = GroupSharedKey::empty_shared_key();
-  return td::Status::OK();
-}
-
-td::Status State::validate_shared_key(const GroupSharedKeyRef &shared_key, const GroupStateRef &group_state) {
-  if (shared_key->empty_shared_key()) {
-    return td::Status::OK();
-  }
-  if (shared_key->dest_user_id.size() != shared_key->dest_header.size()) {
-    return td::Status::Error("Shared key different number of users and headers");
-  }
-  if (shared_key->dest_user_id.size() != group_state->participants.size()) {
-    return td::Status::Error("Shared key has wrong number of users");
-  }
-  std::set<td::int64> participants;
-  for (const auto user_id : shared_key->dest_user_id) {
-    participants.insert(user_id);
-  }
-  if (participants.size() != shared_key->dest_user_id.size()) {
-    return td::Status::Error("Shared key has duplicate users");
-  }
-  for (auto &p : group_state->participants) {
-    if (!participants.count(p.user_id)) {
-      return td::Status::Error("Unknown user_id in SetSharedKey");
-    }
-  }
-  return td::Status::OK();
-}
-
-td::Status State::set_shared_key(GroupSharedKeyRef shared_key, const Permissions &permissions) {
-  if (*shared_key_ != *GroupSharedKey::empty_shared_key()) {
-    return td::Status::Error("Shared key is already set");
-  }
-  if (!permissions.may_change_shared_key()) {
-    return Error(E::InvalidBlock_NoPermissions, "Can't set shared key");
-  }
-  TRY_STATUS(validate_shared_key(shared_key, group_state_));
-  shared_key_ = std::move(shared_key);
-  return td::Status::OK();
-}
-
-td::Status State::validate_state(const StateProof &state_proof) const {
-  if (state_proof.kv_hash.hash != key_value_state_.get_hash()) {
-    return td::Status::Error("State hash mismatch");
-  }
-
-  if (!has_group_state_change_ && !has_set_value_) {
-    return Error(E::InvalidBlock_NoChanges, "There must be at least SetValue or SetGroupState changes");
-  }
-  if (has_group_state_change_ && state_proof.o_group_state) {
-    return Error(E::InvalidBlock_InvalidStateProof_Group,
-                 "Group state must be omitted when there is a group state change");
-  }
-  if (!has_group_state_change_ && !state_proof.o_group_state) {
-    return Error(E::InvalidBlock_InvalidStateProof_Group,
-                 "Group state must be provided when there is no group state change");
-  }
-  if (!has_group_state_change_ && **state_proof.o_group_state != *group_state_) {
-    return Error(E::InvalidBlock_InvalidStateProof_Group, "group state differs");
-  }
-
-  bool shared_key_must_be_omitted = has_group_state_change_ || has_shared_key_change_;
-  if (shared_key_must_be_omitted && state_proof.o_shared_key) {
-    return Error(E::InvalidBlock_InvalidStateProof_Secret, "Shared key state must be omitted");
-  }
-  if (!shared_key_must_be_omitted && !state_proof.o_shared_key) {
-    return Error(E::InvalidBlock_InvalidStateProof_Secret, "Shared key state must be provided");
-  }
-  if (!shared_key_must_be_omitted && **state_proof.o_shared_key != *shared_key_) {
-    return Error(E::InvalidBlock_InvalidStateProof_Secret, "shared key state differs");
-  }
-
-  TRY_STATUS(validate_group_state(group_state_));
-  TRY_STATUS(validate_shared_key(shared_key_, group_state_));
-
-  return td::Status::OK();
-}
-
-td::Status State::apply_change(const Change &change_outer, const PublicKey &public_key,
-                               const ValidateOptions &validate_options) {
-  bool full_apply = validate_options.validate_state_hash;
-  auto limit_permissions = validate_options.permissions;
-  return std::visit(
-      td::overloaded(
-          [](const ChangeNoop &change) { return td::Status::OK(); },
-          [this, full_apply, limit_permissions, &public_key](const ChangeSetValue &change) {
-            has_set_value_ = true;
-            if (full_apply) {
-              return set_value(change.key, change.value, group_state_->get_permissions(public_key, limit_permissions));
-            }
-            return td::Status::OK();
-          },
-          [this, limit_permissions, &public_key](const ChangeSetGroupState &change) {
-            has_group_state_change_ = true;
-            TRY_STATUS(
-                set_group_state(change.group_state, group_state_->get_permissions(public_key, limit_permissions)));
-            return clear_shared_key(group_state_->get_permissions(public_key, limit_permissions));
-          },
-          [this, limit_permissions, &public_key](const ChangeSetSharedKey &change) {
-            has_shared_key_change_ = true;
-            return set_shared_key(change.shared_key, group_state_->get_permissions(public_key, limit_permissions));
-          }),
-      change_outer.value);
-}
-
-td::Status State::apply(Block &block, ValidateOptions validate_options) {
-  // To apply the first block an ephemeral -1 block is used
-  //   - It has only one participant - Participant(user_id = 0, public_key = signer_public_key, permissions = all)
-  if (block.height_ == 0) {
-    CHECK(group_state_->empty());
-    group_state_ = std::make_unique<GroupState>(GroupState{{}, GroupParticipantFlags::AllPermissions});
-  }
-
-  td::optional<PublicKey> o_signature_public_key = block.o_signature_public_key_;
-  if (!o_signature_public_key && !group_state_->empty()) {
-    o_signature_public_key = group_state_->participants[0].public_key;
-  }
-  if (!o_signature_public_key) {
-    return td::Status::Error("Unknown public key");
-  }
-
-  // 5. Verifies the signature of the block.
-  if (validate_options.validate_signature) {
-    TRY_STATUS(block.verify_signature(o_signature_public_key.value()));
-  }
-
-  // 6. Applies the changes to the state.
-  //   - If `validate_state_hash` is true, the state hash is validated.
-  //   - Otherwise, the state hash is set to the hash of the block.
-  has_set_value_ = false;
-  has_shared_key_change_ = false;
-  has_group_state_change_ = false;
-  for (auto &change : block.changes_) {
-    TRY_STATUS(apply_change(change, o_signature_public_key.value(), validate_options));
-  }
-  if (!validate_options.validate_state_hash) {
-    TRY_STATUS(set_value_fast(block.state_proof_.kv_hash));
-  }
-
-  TRY_STATUS(validate_state(block.state_proof_));
-
-  return td::Status::OK();
-}
-
-td::Result<State> State::create_from_block(const Block &block, td::optional<td::Slice> o_snapshot) {
-  KeyValueState key_value_state;
-  GroupStateRef group_state;
-  GroupSharedKeyRef shared_key;
-
-  if (o_snapshot) {
-    TRY_RESULT_ASSIGN(key_value_state, KeyValueState::create_from_snapshot(o_snapshot.value()));
-  } else {
-    TRY_RESULT_ASSIGN(key_value_state, KeyValueState::create_from_hash(block.state_proof_.kv_hash));
-  }
-
-  // For the first block we fixup group state.
-  if (block.height_ == 0) {
-    group_state = std::make_shared<GroupState>(GroupState{{}, GroupParticipantFlags::AllPermissions});
-  }
-
-  bool has_set_value = false;
-  bool has_group_state_change = false;
-  bool has_shared_key_change = false;
-  for (const auto &change_v : block.changes_) {
-    std::visit(
-        td::overloaded([](const ChangeNoop &change) {}, [&](const ChangeSetValue &change) { has_set_value = true; },
-                       [&](const ChangeSetGroupState &change) {
-                         group_state = change.group_state;
-                         shared_key = GroupSharedKey::empty_shared_key();
-                         has_group_state_change = true;
-                       },
-                       [&](const ChangeSetSharedKey &change) {
-                         shared_key = change.shared_key;
-                         has_shared_key_change = true;
-                       }),
-        change_v.value);
-  }
-
-  if (block.state_proof_.o_group_state) {
-    group_state = block.state_proof_.o_group_state.value();
-  }
-  if (block.state_proof_.o_shared_key) {
-    shared_key = block.state_proof_.o_shared_key.value();
-  }
-  if (!group_state) {
-    return Error(E::InvalidBlock_InvalidStateProof_Group, "no group state proof");
-  }
-  if (!shared_key) {
-    return Error(E::InvalidBlock_InvalidStateProof_Secret, "no shared key");
-  }
-
-  auto state = State(key_value_state, group_state, shared_key);
-  state.has_set_value_ = has_set_value;
-  state.has_group_state_change_ = has_group_state_change;
-  state.has_shared_key_change_ = has_shared_key_change;
-  TRY_STATUS(state.validate_state(block.state_proof_));
-  return state;
-}
-
-td::Result<Block> Blockchain::build_block(std::vector<Change> changes, const PrivateKey &private_key) const {
-  //TODO(now): check if we are allowed to sign this block
-  auto public_key = private_key.to_public_key();
-  auto state = state_;
-  if (last_block_.height_ == std::numeric_limits<td::int32>::max()) {
-    return td::Status::Error("Blockchain::build_block: last block height is too high");
-  }
-  td::int32 height = last_block_.height_ + 1;
-  if (height == 0) {
-    state.group_state_ = std::make_shared<GroupState>(GroupState{{}, GroupParticipantFlags::AllPermissions});
-  }
-
-  ValidateOptions validate_options;
-  validate_options.validate_state_hash = true;
-  validate_options.validate_signature = false;
-  validate_options.permissions = GroupParticipantFlags::AllPermissions;
-  for (const auto &change : changes) {
-    TRY_STATUS(state.apply_change(change, public_key, validate_options));
-  }
-
-  StateProof state_proof;
-  state_proof.kv_hash = KeyValueHash{state.key_value_state_.get_hash()};
-  state_proof.o_group_state = state.group_state_;
-  state_proof.o_shared_key = state.shared_key_;
-  state.has_set_value_ = false;
-  state.has_group_state_change_ = false;
-  state.has_shared_key_change_ = false;
-  for (const auto &change_v : changes) {
-    std::visit(td::overloaded([](const ChangeNoop &change) {},
-                              [&](const ChangeSetValue &change) { state.has_set_value_ = true; },
-                              [&](const ChangeSetGroupState &change) {
-                                state_proof.o_group_state = {};
-                                state_proof.o_shared_key = {};
-                                state.has_group_state_change_ = true;
-                              },
-                              [&](const ChangeSetSharedKey &change) {
-                                state_proof.o_shared_key = {};
-                                state.has_shared_key_change_ = true;
-                              }),
-               change_v.value);
-  }
-  TRY_STATUS(state.validate_state(state_proof));
-
-  Block block;
-  block.height_ = height;
-  block.prev_block_hash_ = last_block_hash_;
-  block.changes_ = std::move(changes);
-  block.o_signature_public_key_ = public_key;
-  block.state_proof_ = std::move(state_proof);
-  TRY_STATUS(block.sign_inplace(private_key));
-  return block;
-}
-
-td::Status Blockchain::try_apply_block(Block block, ValidateOptions validate_options) {
-  // To apply the first block an ephemeral -1 block is used
-  //   - It has hash UInt256(0)
-  //   - It has height -1
-  //   - It has only one participant - Participant(user_id = 0, public_key = signer_public_key, permissions = all)
-
-  if (block.height_ != get_height() + 1 || get_height() == std::numeric_limits<td::int32>::max()) {
-    return Error(E::InvalidBlock_HeightMismatch,
-                 PSLICE() << "new_block.height=" << block.height_ << " != 1 + last_block.height=" << get_height());
-  }
-
-  if (block.prev_block_hash_ != last_block_hash_) {
-    return Error(E::InvalidBlock_HashMismatch);
-  }
-
-  // TODO: validate total size of block
-  auto state = state_;
-  TRY_STATUS(state.apply(block, validate_options));
-
-  // NO errors after this point
-  state_ = std::move(state);
-
-  last_block_hash_ = block.calc_hash();
-
-  last_block_ = std::move(block);
-  return td::Status::OK();
-}
-
-Block Blockchain::set_value(td::Slice key, td::Slice value, const PrivateKey &private_key) const {
-  return build_block({Change{ChangeSetValue{key.str(), value.str()}}}, private_key).move_as_ok();
-}
-
-td::int64 Blockchain::get_height() const {
-  return last_block_.height_;
-}
-
-td::Result<td::UInt256> as_key(td::Slice key) {
-  if (key.size() != 32) {
-    return td::Status::Error("Invalid key size");
-  }
-  td::UInt256 key_int256;
-  key_int256.as_mutable_slice().copy_from(key);
-  if (key_int256.is_zero()) {
-    return td::Status::Error("Invalid zero key");
-  }
-  return key_int256;
-}
-
-td::Result<Blockchain> Blockchain::create_from_block(Block block, td::optional<td::Slice> o_snapshot) {
-  if (block.height_ < 0) {
-    return Error(E::InvalidBlock, "negative height");
-  }
-  Blockchain res;
-  res.last_block_hash_ = block.calc_hash();
-  TRY_RESULT_ASSIGN(res.state_, State::create_from_block(block, std::move(o_snapshot)));
-  res.last_block_ = std::move(block);
-
-  return res;
-}
-
-namespace {
-bool is_good_magic(td::int32 magic) {
-  return magic == td::e2e_api::e2e_chain_block::ID || magic == td::e2e_api::e2e_chain_groupBroadcastNonceCommit::ID ||
-         magic == td::e2e_api::e2e_chain_groupBroadcastNonceReveal::ID;
-}
-}  // namespace
-
-bool Blockchain::is_from_server(td::Slice block) {
-  if (block.size() < 4) {
-    return false;
-  }
-  td::int32 server_magic = td::as<td::int32>(block.data());
-  return is_good_magic(server_magic - 1) && !is_good_magic(server_magic);
-}
-
-td::Result<std::string> Blockchain::from_any_to_local(std::string block) {
-  if (is_from_server(block)) {
-    return from_server_to_local(std::move(block));
-  }
-  return block;
-}
-
-td::Result<std::string> Blockchain::from_server_to_local(std::string block) {
-  if (block.size() < 4) {
-    return td::Status::Error("Block is too short");
-  }
-  td::int32 server_magic = td::as<td::int32>(block.data());
-  if (is_good_magic(server_magic)) {
-    return td::Status::Error("Trying to apply local block, not from server");
-  }
-  td::int32 real_magic = server_magic - 1;
-  td::as<td::int32>(block.data()) = real_magic;
-  return block;
-}
-
-td::Result<std::string> Blockchain::from_local_to_server(std::string block) {
-  if (block.size() < 4) {
-    return td::Status::Error("Block is too short");
-  }
-  td::int32 magic = td::as<td::int32>(block.data());
-  td::as<td::int32>(block.data()) = magic + 1;
-  return block;
-}
-
-td::Result<ClientBlockchain> ClientBlockchain::create_from_block(td::Slice block_slice, const PublicKey &public_key) {
-  TRY_RESULT(block, Block::from_tl_serialized(block_slice));
-  TRY_RESULT(blockchain, Blockchain::create_from_block(std::move(block)));
-  ClientBlockchain res;
-  res.blockchain_ = std::move(blockchain);
-  return res;
-}
-
-td::Result<ClientBlockchain> ClientBlockchain::create_empty() {
-  ClientBlockchain res;
-  res.blockchain_ = Blockchain::create_empty();
-  return res;
-}
-
-td::Result<std::vector<Change>> ClientBlockchain::try_apply_block(td::Slice block_slice) {
-  TRY_RESULT(block, Block::from_tl_serialized(block_slice));
-
-  ValidateOptions validate_options;
-  validate_options.validate_signature = true;
-  validate_options.validate_state_hash = false;
-  TRY_STATUS(blockchain_.try_apply_block(block, validate_options));
-  for (auto &change : block.changes_) {
-    if (std::holds_alternative<ChangeSetValue>(change.value)) {
-      auto &change_value = std::get<ChangeSetValue>(change.value);
-      auto key = as_key(change_value.key).move_as_ok();  // already verified in try_apply_block
-      map_[key] = Entry{block.height_, change_value.value};
-    }
-  }
-
-  return std::move(block.changes_);
-}
-
-td::Status ClientBlockchain::add_proof(td::Slice proof) {
-  TRY_RESULT(state, TrieNode::fetch_from_network(proof));
-
-  if (state->hash != blockchain_.state_.key_value_state_.get_hash()) {
-    return td::Status::Error("Invalid proof");
-  }
-  // TODO: merge proof
-  blockchain_.state_.key_value_state_.node_ = state;
-  return td::Status::OK();
-}
-
-td::Result<std::string> ClientBlockchain::build_block(const std::vector<Change> &changes,
-                                                      const PrivateKey &private_key) const {
-  TRY_RESULT(block, blockchain_.build_block(changes, private_key));
-  return block.to_tl_serialized();
-}
-
-td::Result<std::string> ClientBlockchain::get_value(td::Slice raw_key) const {
-  TRY_RESULT(key, as_key(raw_key));
-  auto it = map_.find(key);
-  if (it != map_.end()) {
-    return it->second.value;
-  }
-  return blockchain_.state_.key_value_state_.get_value(raw_key);
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Blockchain.h b/third-party/td/td/tde2e/td/e2e/Blockchain.h
deleted file mode 100644
index 89a2f1176e..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Blockchain.h
+++ /dev/null
@@ -1,348 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/Trie.h"
-#include "td/e2e/utils.h"
-
-#include "td/telegram/e2e_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/optional.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/UInt.h"
-
-#include <memory>
-#include <variant>
-
-namespace tde2e_core {
-
-namespace e2e = td::e2e_api;
-
-struct KeyValueHash {
-  td::UInt256 hash{};
-};
-
-enum GroupParticipantFlags : td::int32 {
-  AddUsers = 1 << 0,
-  RemoveUsers = 1 << 1,
-  SetValue = 1 << 2,
-  AllPermissions = (1 << 3) - 1,
-  IsParticipant = 1 << 30
-};
-
-struct GroupParticipant {
-  td::int64 user_id{0};
-  td::int32 flags{0};
-  PublicKey public_key{};
-  td::int32 version{0};
-  bool add_users() const {
-    return (flags & GroupParticipantFlags::AddUsers) != 0;
-  }
-  bool remove_users() const {
-    return (flags & GroupParticipantFlags::RemoveUsers) != 0;
-  }
-  bool operator==(const GroupParticipant &other) const {
-    return user_id == other.user_id && flags == other.flags && public_key == other.public_key &&
-           version == other.version;
-  }
-  bool operator!=(const GroupParticipant &other) const {
-    return !(other == *this);
-  }
-
-  static GroupParticipant from_tl(const td::e2e_api::e2e_chain_groupParticipant &participant);
-  e2e::object_ptr<e2e::e2e_chain_groupParticipant> to_tl() const;
-};
-
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const GroupParticipant &part) {
-  return sb << "(uid=" << part.user_id << ", flags=" << part.flags << ", pk=" << part.public_key
-            << ", version=" << part.version << ")";
-}
-
-struct GroupState;
-struct GroupSharedKey;
-using GroupStateRef = std::shared_ptr<const GroupState>;
-using GroupSharedKeyRef = std::shared_ptr<const GroupSharedKey>;
-
-struct Permissions {
-  td::int32 flags{0};
-  bool may_add_users() const {
-    return (flags & GroupParticipantFlags::AddUsers) != 0;
-  }
-  bool may_remove_users() const {
-    return (flags & GroupParticipantFlags::RemoveUsers) != 0;
-  }
-  bool may_set_value() const {
-    return (flags & GroupParticipantFlags::SetValue) != 0;
-  }
-  bool is_participant() const {
-    return (flags & GroupParticipantFlags::IsParticipant) != 0;
-  }
-  bool may_change_shared_key() const {
-    return is_participant() && (may_remove_users() || may_add_users());
-  }
-};
-
-struct GroupState {
-  std::vector<GroupParticipant> participants;
-  td::int32 external_permissions{};
-  bool empty() const {
-    return participants.empty();
-  }
-  td::int32 version() const;
-  td::Result<GroupParticipant> get_participant(td::int64 user_id) const;
-  td::Result<GroupParticipant> get_participant(const PublicKey &public_key) const;
-  Permissions get_permissions(const PublicKey &public_key, td::int32 limit_permissions) const;
-  static GroupStateRef from_tl(const td::e2e_api::e2e_chain_groupState &state);
-  e2e::object_ptr<e2e::e2e_chain_groupState> to_tl() const;
-  static GroupStateRef empty_state();
-  bool operator==(const GroupState &other) const {
-    return participants == other.participants && external_permissions == other.external_permissions;
-  }
-  bool operator!=(const GroupState &other) const {
-    return !(other == *this);
-  }
-};
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const GroupState &state) {
-  return sb << state.participants << ", external_permissions=" << state.external_permissions;
-}
-
-struct GroupSharedKey {
-  PublicKey ek;
-  std::string encrypted_shared_key;
-  std::vector<td::int64> dest_user_id;
-  std::vector<std::string> dest_header;
-  static GroupSharedKeyRef from_tl(const td::e2e_api::e2e_chain_sharedKey &shared_key);
-  e2e::object_ptr<e2e::e2e_chain_sharedKey> to_tl() const;
-  static GroupSharedKeyRef empty_shared_key();
-  bool empty() const {
-    return *this == *empty_shared_key();
-  }
-  bool operator==(const GroupSharedKey &other) const {
-    return ek == other.ek && encrypted_shared_key == other.encrypted_shared_key && dest_user_id == other.dest_user_id &&
-           dest_header == other.dest_header;
-  }
-  bool operator!=(const GroupSharedKey &other) const {
-    return !(other == *this);
-  }
-};
-
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const GroupSharedKey &shared_key) {
-  return sb << "SharedKey{uids=" << shared_key.dest_user_id << "}";
-}
-
-struct ChangeNoop {
-  td::UInt256 nonce;
-  static ChangeNoop from_tl(const td::e2e_api::e2e_chain_changeNoop &change) {
-    return ChangeNoop{change.nonce_};
-  }
-  e2e::object_ptr<e2e::e2e_chain_changeNoop> to_tl() const {
-    return e2e::make_object<e2e::e2e_chain_changeNoop>(nonce);
-  }
-};
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const ChangeNoop &change) {
-  return sb << "Noop{}";
-}
-
-struct ChangeSetValue {
-  std::string key;
-  std::string value;
-  static ChangeSetValue from_tl(const td::e2e_api::e2e_chain_changeSetValue &change);
-  e2e::object_ptr<e2e::e2e_chain_changeSetValue> to_tl() const;
-};
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const ChangeSetValue &state) {
-  return sb << "SetValue{key.size=" << state.key.size() << ", value.size=" << state.value.size() << "}";
-}
-struct ChangeSetGroupState {
-  GroupStateRef group_state;
-  static ChangeSetGroupState from_tl(const td::e2e_api::e2e_chain_changeSetGroupState &change);
-  e2e::object_ptr<e2e::e2e_chain_changeSetGroupState> to_tl() const;
-};
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const ChangeSetGroupState &state) {
-  return sb << "SetGroupState{" << *state.group_state << "}";
-}
-struct ChangeSetSharedKey {
-  GroupSharedKeyRef shared_key;
-  static ChangeSetSharedKey from_tl(const td::e2e_api::e2e_chain_changeSetSharedKey &change);
-  e2e::object_ptr<e2e::e2e_chain_changeSetSharedKey> to_tl() const;
-};
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const ChangeSetSharedKey &shared_key) {
-  return sb << "SetSharedKey{" << *shared_key.shared_key << "}";
-}
-
-struct Change {
-  std::variant<ChangeSetValue, ChangeSetGroupState, ChangeSetSharedKey, ChangeNoop> value;
-  static Change from_tl(const td::e2e_api::e2e_chain_Change &change);
-  e2e::object_ptr<e2e::e2e_chain_Change> to_tl() const;
-};
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const Change &change) {
-  std::visit([&](auto &value) { sb << value; }, change.value);
-  return sb;
-}
-
-struct KeyValueState {
-  TrieRef node_{TrieNode::empty_node()};
-  td::optional<td::Slice> snapshot_{td::Slice()};
-  td::Result<std::string> get_value(td::Slice key) const;
-  td::Result<std::string> gen_proof(td::Span<td::Slice> keys) const;
-  static td::Result<KeyValueState> create_from_hash(KeyValueHash hash);
-  static td::Result<KeyValueState> create_from_snapshot(td::Slice snapshot);
-  td::Result<std::string> build_snapshot() const;
-  td::UInt256 get_hash() const;
-  td::Status set_value(td::Slice key, td::Slice value);
-  //td::Status set_value_fast(KeyValueHash key_value_hash);
-};
-
-struct StateProof {
-  KeyValueHash kv_hash;
-  td::optional<GroupStateRef> o_group_state;
-  td::optional<GroupSharedKeyRef> o_shared_key;
-  static StateProof from_tl(const td::e2e_api::e2e_chain_stateProof &proof);
-  e2e::object_ptr<e2e::e2e_chain_stateProof> to_tl() const;
-};
-
-td::StringBuilder &operator<<(td::StringBuilder &sb, const StateProof &state);
-struct ValidateOptions {
-  bool validate_state_hash{true};
-  bool validate_signature{true};
-  td::int32 permissions{GroupParticipantFlags::AllPermissions};
-};
-
-struct Block;
-struct State {
-  KeyValueState key_value_state_;
-  GroupStateRef group_state_;
-  GroupSharedKeyRef shared_key_;
-  bool has_set_value_{};
-  bool has_shared_key_change_{};
-  bool has_group_state_change_{};
-
-  State() = default;
-  State(KeyValueState key_value_state, GroupStateRef group_state, GroupSharedKeyRef shared_key)
-      : key_value_state_(std::move(key_value_state))
-      , group_state_(std::move(group_state))
-      , shared_key_(std::move(shared_key)) {
-    CHECK(group_state_);
-    CHECK(shared_key_);
-  }
-
-  static State create_empty();
-  static td::Result<State> create_from_block(const Block &block, td::optional<td::Slice> o_snapshot = {});
-
-  td::Status set_value(td::Slice key, td::Slice value, const Permissions &permissions);
-  td::Status set_group_state(GroupStateRef group_state, const Permissions &permissions);
-  td::Status clear_shared_key(const Permissions &permissions);
-  td::Status set_shared_key(GroupSharedKeyRef shared_key, const Permissions &permissions);
-  td::Status set_value_fast(const KeyValueHash &key_value_hash);
-  td::Status apply_change(const Change &change_outer, const PublicKey &public_key, const ValidateOptions &options);
-
-  td::Status apply(Block &block, ValidateOptions validate_options = {});
-
-  td::Status validate_state(const StateProof &state_proof) const;
-
-  static td::Status validate_group_state(const GroupStateRef &group_state);
-  static td::Status validate_shared_key(const GroupSharedKeyRef &shared_key, const GroupStateRef &group_state);
-};
-
-struct Block {
-  Signature signature_;
-  td::UInt256 prev_block_hash_{};
-  std::vector<Change> changes_;
-  td::int32 height_{-1};
-
-  StateProof state_proof_;
-  td::optional<PublicKey> o_signature_public_key_;
-
-  td::Status sign_inplace(const PrivateKey &private_key) {
-    TRY_RESULT_ASSIGN(signature_, ::tde2e_core::sign(private_key, *to_tl()));
-    return td::Status::OK();
-  }
-  td::Status verify_signature(const PublicKey &public_key) const {
-    return ::tde2e_core::verify_signature(public_key, *to_tl());
-  }
-  td::UInt256 calc_hash() const;
-
-  static td::Result<Block> from_tl_serialized(td::Slice new_block);
-  std::string to_tl_serialized() const;
-
- private:
-  e2e::object_ptr<e2e::e2e_chain_block> to_tl() const;
-  static Block from_tl(const e2e::e2e_chain_block &block);
-};
-td::StringBuilder &operator<<(td::StringBuilder &sb, const Block &block);
-
-struct Blockchain {
-  static Blockchain create_empty() {
-    return Blockchain{Block{}, td::UInt256{}, State::create_empty()};
-  }
-  static td::Result<Blockchain> create_from_block(Block block, td::optional<td::Slice> o_snapshot = {});
-
-  static bool is_from_server(td::Slice block);
-  static td::Result<std::string> from_any_to_local(std::string block);
-  static td::Result<std::string> from_server_to_local(std::string block);
-  static td::Result<std::string> from_local_to_server(std::string block);
-
-  td::Result<Block> build_block(std::vector<Change> changes, const PrivateKey &private_key) const;
-  td::Status try_apply_block(Block block, ValidateOptions validate_options);
-  Block set_value(td::Slice key, td::Slice value, const PrivateKey &private_key) const;
-  td::int64 get_height() const;
-
-  Block last_block_;
-  td::UInt256 last_block_hash_{};
-  State state_{State::create_empty()};
-
-  void attach_snapshot(td::Slice snapshot) {
-    state_.key_value_state_.snapshot_ = snapshot;
-  }
-  void detach_snapshot() {
-    state_.key_value_state_.snapshot_ = td::Slice();
-  }
-};
-
-class ClientBlockchain {
- public:
-  static td::Result<ClientBlockchain> create_from_block(td::Slice block_slice, const PublicKey &public_key);
-  static td::Result<ClientBlockchain> create_empty();
-
-  td::Result<std::vector<Change>> try_apply_block(td::Slice block_slice);
-
-  td::int64 get_height() const {
-    return blockchain_.get_height();
-  }
-  td::UInt256 get_last_block_hash() const {
-    return blockchain_.last_block_hash_;
-  }
-
-  td::Status add_proof(td::Slice proof);
-
-  td::Result<std::string> build_block(const std::vector<Change> &changes, const PrivateKey &private_key) const;
-
-  td::Result<std::string> get_value(td::Slice key) const;
-  GroupSharedKeyRef get_group_shared_key() const {
-    return blockchain_.state_.shared_key_;
-  }
-  GroupStateRef get_group_state() const {
-    return blockchain_.state_.group_state_;
-  }
-  const Blockchain &get_inner_chain() const {
-    return blockchain_;
-  }
-
- private:
-  Blockchain blockchain_;
-  struct Entry {
-    td::int64 height;
-    std::string value;
-  };
-  td::FlatHashMap<td::UInt256, Entry, UInt256Hash> map_;
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Blockchain.md b/third-party/td/td/tde2e/td/e2e/Blockchain.md
deleted file mode 100644
index d8915cfe39..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Blockchain.md
+++ /dev/null
@@ -1,195 +0,0 @@
-# Blockchain Implementation Documentation
-
-## Overview
-
-The blockchain implementation provides a distributed ledger system that maintains a consistent state across multiple participants. It supports key-value storage, participant management, and secure state transitions. The blockchain is designed with security in mind, ensuring only valid blocks with proper signatures and correct heights can be applied.
-
-## Core Components
-
-### Block Structure
-
-As defined in the e2e_api.tl scheme:
-```
-e2e.chain.block signature:int512 flags:# prev_block_hash:int256 changes:vector<e2e.chain.Change> height:int state_proof:e2e.chain.StateProof signature_public_key:flags.0?int256 = e2e.chain.Block;
-```
-
-A block consists of:
-- **Signature**: Cryptographic signature verifying the block's authenticity
-- **Previous Block Hash**: Links to the previous block, creating a chain
-- **Changes**: A vector of operations to apply to the blockchain state
-- **Height**: Sequential block number, critical for validation
-- **State Proof**: Contains hashes and states for validation. This proof represents the state of the blockchain after the block was applied.
-- **Signature Public Key**: The key of the participant who created the block
-
-### Signature Generation
-
-The signature is generated for the TL-serialized block with the signature field zeroed.
-
-### Block Hash Generation
-
-The hash of the block is the SHA256 of the TL-serialized block.
-
-### Change Types
-
-The blockchain supports four types of changes:
-
-1. **ChangeSetValue**: Updates a key-value pair in the blockchain
-   ```
-   e2e.chain.changeSetValue key:bytes value:bytes = e2e.chain.Change;
-   ```
-
-2. **ChangeSetGroupState**: Updates the group of participants and their permissions
-   ```
-   e2e.chain.groupParticipant user_id:long public_key:int256 flags:# add_users:flags.0?true remove_users:flags.1?true version:int = e2e.chain.GroupParticipant;
-   e2e.chain.groupState participants:vector<e2e.chain.GroupParticipant> = e2e.chain.GroupState;
-   e2e.chain.changeSetGroupState group_state:e2e.chain.GroupState = e2e.chain.Change;
-   ```
-
-3. **ChangeSetSharedKey**: Updates the encryption keys shared among participants
-   ```
-   e2e.chain.sharedKey ek:int256 encrypted_shared_key:string dest_user_id:vector<long> dest_header:vector<bytes> = e2e.chain.SharedKey;
-   e2e.chain.changeSetSharedKey shared_key:e2e.chain.SharedKey = e2e.chain.Change;
-   ```
-
-4. **ChangeNoop**: Does nothing and can be used for hash randomization. Currently, it must be present in the zero block.
-   ```
-   e2e.chain.changeNoop random:int256 = e2e.chain.Change;
-   ```
-
-### Participants and Permissions
-
-Participants in the blockchain have specific permissions:
-- **AddUsers**: Can add new participants to the blockchain
-- **RemoveUsers**: Can remove existing participants from the blockchain
-
-```
-e2e.chain.groupParticipant user_id:long public_key:int256 flags:# add_users:flags.0?true remove_users:flags.1?true version:int = e2e.chain.GroupParticipant;
-```
-
-### Implementation Details
-
-#### Key-Value State
-
-The blockchain uses a persistent trie for key-value storage, with the following properties:
-- Supports set/get operations
-- Generates pruned trees for a given set of keys
-- A pruned tree allows:
-  - `get` operations for any of the specified keys
-  - `set` operations for any of those keys to create a new (pruned) trie
-
-```c++
-td::Result<TrieRef> set(TrieRef n, BitString key, td::Slice value, td::Slice snapshot = {});
-td::Result<std::string> get(const TrieRef &n, BitString key, td::Slice snapshot = {});
-td::Result<TrieRef> generate_pruned_tree(const TrieRef &n, td::Span<td::Slice> keys, td::Slice snapshot = {});
-```
-
-The trie can be serialized for network transmission or persistent storage:
-
-```c++
-static td::Result<std::string> serialize_for_network(TrieRef node);
-static td::Result<TrieRef> fetch_from_network(td::Slice data);
-static td::Result<std::string> serialize_for_snapshot(TrieRef node, td::Slice snapshot);
-static td::Result<TrieRef> fetch_from_snapshot(td::Slice snapshot);
-```
-
-- `{serialize_for,fetch_from}_network` is used for passing a pruned trie over the network
-- `{serialize_for,fetch_from}_snapshot` is used by the server to persist the entire state to disk
-
-#### Blockchain State
-
-The complete blockchain state consists of:
-- A trie (TrieRef root + Slice snapshot) for key-value storage
-- A group state (participants and their permissions)
-- Shared key information (encryption keys shared among participants)
-
-## Expected Behaviors
-
-### Block Application Process
-
-A block is either applied completely or not at all.
-
-1. The block's height is checked. It must be exactly one more than the current blockchain height.
-   - If the height is incorrect, the block is rejected with `HEIGHT_MISMATCH`
-2. The hash of the previous block is checked. It must match the hash of the last applied block.
-   - If the hash is incorrect, the block is rejected with `PREVIOUS_BLOCK_HASH_MISMATCH`
-3. The permissions of the participant who created the block (the one with `signer_public_key`) are determined.
-   - First, we look for the signer's public key in the previous state. If found, we use its permissions; otherwise, we use external_permissions
-4. The block signature is verified.
-   - If the signature is invalid, the block is rejected with `INVALID_SIGNATURE`
-5. Next, changes from the block are applied one by one.
-   - Before applying a change, we check that the participant has sufficient permissions to apply it.
-   - Then, the change is applied.
-   - After applying a block, the block creator's permissions could be updated. This is important because any subsequent changes should be applied using the new permissions. The idea is that applying changes in the same block should yield the same result as applying them in separate blocks.
-   - If any change is invalid, the block is rejected with the corresponding error.
-6. After all changes are applied, the block's state proof must be valid for the new state.
-   - If the state proof is invalid, the block is rejected with `INVALID_STATE_PROOF`
-
-To apply the first block, an ephemeral block with height `-1` is used:
-   - It has a hash of `UInt256(0)`
-   - Its height is `-1`
-   - It has effective (but not explicitly stored, i.e., not reflected in its hash) `self_join_permissions` with all permissions
-
-There are also several optimizations for block serialization:
-   - The `signer_public_key` can be omitted if it is the same as the public key of the first participant in the group state
-   - `group_state` in `state_proof` can be omitted if there is a `SetGroupState` change in the block
-   - `shared_key` in `state_proof` can be omitted if there is a `SetSharedKey` or `SetGroupState` change in the block
-
-### Applying Changes
-
-The idea is that applying changes within the same block should lead to the same state as applying them in multiple blocks.
-
-#### Key Value Updates
-
-Currently, any participant can update any key with a new value. This change is always successful. Deletion is the same as overwriting with an empty value.
-
-- The trie is updated with the new value
-- The trie hash must be stored in the new state proof
-
-### Participant Management
-
-- Only participants with the `AddUsers` permission can add new participants
-- A participant may add users with permissions that are a non-strict subset of its own permissions
-- As an exception, it is possible to give permissions to another user
-- Only participants with the `RemoveUsers` permission can remove existing participants
-- Both the public key and user ID are unique in the group state
-- Any new state of the group is allowed otherwise
-- The shared key is automatically cleared by this change
-
-#### Shared Key Updates
-
-- The shared key cannot be overwritten by other participants. One must update the group state to clear the key first.
-- The shared key is automatically cleared by a `SetGroupState` change.
-- The shared key must contain all user_ids of all participants, and only them.
-- How the shared key is encrypted is not the blockchain's concern.
-- Only participants may update the key.
-
-Note:
-- It is impossible to create a new key if the user is not in the group, even if it is an automatic removal of the key
-- Only participants may create a new key
-- It is impossible to remove yourself from the group (this could be allowed in the future, but would lead to an empty shared key)
-
-## Known Behaviors and Considerations
-
-### Multiple Blocks at the Same Height
-
-If two blocks are built concurrently for the same height:
-- Only the first applied block will succeed
-- The second block will be rejected with `HEIGHT_MISMATCH`
-- This is intended behavior to avoid forks and force all changes to be applied **exactly** in the way the creator intended
-
-### Partial State Handling
-
-The client library does not store the entire key-value state. To create a block, the client must receive a proof of all changed keys from the server.
-
-### Security
-
-There are several aspects we should be particularly careful about:
-
-1. Clients must apply only blocks received from the server. This is especially important for blocks created by the client itself. The server does extra work to ensure correctness of blocks and to prevent forks. Forks per se are not a security problem, but they would lead to broken calls.
-
-2. Blocks should be sent to the server until a response is received. This could be either success or error. In case of an error like INVALID_BLOCK__HASH_MISMATCH, a new block could be created, but one should be careful about how the group state has been changed.
-
-3. Broadcast blocks should also be sent until they are accepted or declined.
-
-
-
diff --git a/third-party/td/td/tde2e/td/e2e/Call.cpp b/third-party/td/td/tde2e/td/e2e/Call.cpp
deleted file mode 100644
index cd8987ca7e..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Call.cpp
+++ /dev/null
@@ -1,764 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/Call.h"
-
-#include "td/e2e/e2e_api.h"
-#include "td/e2e/MessageEncryption.h"
-#include "td/e2e/Mnemonic.h"
-
-#include "td/telegram/e2e_api.hpp"
-#include "td/utils/algorithm.h"
-
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-
-#include <algorithm>
-#include <limits>
-#include <memory>
-#include <utility>
-
-namespace tde2e_core {
-
-CallVerificationChain::State CallVerificationChain::get_state() const {
-  return state_;
-}
-
-template <class F>
-struct LambdaStorer {
-  const F &store_;
-};
-
-template <class F, class StorerT>
-void store(const LambdaStorer<F> &lambda_storer, StorerT &storer) {
-  lambda_storer.store_(storer);
-}
-
-template <class F>
-std::string lambda_serialize(F &&f) {
-  return td::serialize(LambdaStorer<F>{std::forward<F>(f)});
-}
-
-void CallVerificationChain::on_new_main_block(const Blockchain &blockhain) {
-  state_ = Commit;
-  CHECK(blockhain.get_height() > height_);
-  height_ = td::narrow_cast<td::int32>(blockhain.get_height());
-  last_block_hash_ = blockhain.last_block_hash_;
-  verification_state_ = {};
-  verification_state_.height = height_;
-
-  verification_words_ =
-      CallVerificationWords{height_, Mnemonic::generate_verification_words(last_block_hash_.as_slice())};
-  auto &group_state = *blockhain.state_.group_state_;
-  committed_ = {};
-  revealed_ = {};
-
-  participant_keys_ = {};
-  for (auto &participant : group_state.participants) {
-    participant_keys_.emplace(participant.user_id, participant.public_key);
-  }
-  CHECK(participant_keys_.size() == group_state.participants.size());
-
-  commit_at_ = td::Timestamp::now();
-  reveal_at_ = {};
-  done_at_ = {};
-  users_ = {};
-  for (auto &participant : group_state.participants) {
-    users_[participant.user_id];
-  }
-
-  if (auto it = delayed_broadcasts_.find(height_); it != delayed_broadcasts_.end()) {
-    for (auto &[message, broadcast] : it->second) {
-      auto status = process_broadcast(std::move(message), std::move(broadcast));
-      LOG_IF(ERROR, status.is_error()) << "Failed to process broadcast: " << status;
-    }
-    delayed_broadcasts_.erase(it);
-  }
-}
-td::Status CallVerificationChain::try_apply_block(td::Slice message) {
-  // parse e2e::e2e_chain_GroupBroadcast
-  td::TlParser parser(message);
-  auto kv_broadcast = e2e::e2e_chain_GroupBroadcast::fetch(parser);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-
-  td::int32 chain_height{-1};
-  downcast_call(*kv_broadcast, td::overloaded([&](auto &broadcast) { chain_height = broadcast.chain_height_; }));
-
-  if (chain_height < height_) {
-    LOG(INFO) << "Skip old broadcast " << to_short_string(kv_broadcast);
-    // broadcast is too old
-    return td::Status::OK();
-  }
-
-  if (chain_height > height_) {
-    if (!delay_allowed_) {
-      return Error(E::InvalidBroadcast_InFuture, PSLICE()
-                                                     << "broadcast_height=" << chain_height << " height=" << height_);
-    }
-
-    LOG(INFO) << "Delay broadcast " << to_short_string(kv_broadcast);
-    delayed_broadcasts_[chain_height].emplace_back(message.str(), std::move(kv_broadcast));
-    return td::Status::OK();
-  }
-
-  return process_broadcast(message.str(), std::move(kv_broadcast));
-}
-std::string CallVerificationChain::to_short_string(e2e::object_ptr<e2e::e2e_chain_GroupBroadcast> &broadcast) {
-  td::StringBuilder sb;
-  downcast_call(*broadcast,
-                td::overloaded([&](e2e::e2e_chain_groupBroadcastNonceCommit &commit) { sb << "CommitBroadcast"; },
-                               [&](e2e::e2e_chain_groupBroadcastNonceReveal &reveal) { sb << "RevealBroadcast"; }));
-  downcast_call(*broadcast, [&](auto &v) {
-    sb << "{height=" << v.chain_height_ << " user_id=" << v.user_id_;
-    auto it = participant_keys_.find(v.user_id_);
-    if (it != participant_keys_.end()) {
-      sb << " pk=" << it->second;
-    } else {
-      sb << " pk=?";
-    }
-    sb << "}";
-  });
-  return sb.as_cslice().str();
-}
-
-td::Status CallVerificationChain::process_broadcast(std::string message,
-                                                    e2e::object_ptr<e2e::e2e_chain_GroupBroadcast> broadcast) {
-  td::Status status;
-  td::UInt256 broadcast_chain_hash{};
-  downcast_call(*broadcast, td::overloaded([&](auto &broadcast) { broadcast_chain_hash = broadcast.chain_hash_; }));
-  if (broadcast_chain_hash != last_block_hash_) {
-    status = Error(E::InvalidBroadcast_InvalidBlockHash);
-  }
-  if (status.is_ok()) {
-    downcast_call(
-        *broadcast,
-        td::overloaded([&](e2e::e2e_chain_groupBroadcastNonceCommit &commit) { status = process_broadcast(commit); },
-                       [&](e2e::e2e_chain_groupBroadcastNonceReveal &reveal) { status = process_broadcast(reveal); }));
-  }
-
-  if (status.is_error()) {
-    LOG(ERROR) << "Failed broadcast\n" << to_short_string(broadcast) << "\n\t" << status;
-  } else {
-    LOG(DEBUG) << "Applied broadcast\n\t" << to_short_string(broadcast) << "\n\t" << *this;
-  }
-  return status;
-}
-
-CallVerificationState CallVerificationChain::get_verification_state() const {
-  return verification_state_;
-}
-CallVerificationWords CallVerificationChain::get_verification_words() const {
-  return verification_words_;
-}
-td::Status CallVerificationChain::process_broadcast(e2e::e2e_chain_groupBroadcastNonceCommit &nonce_commit) {
-  CHECK(nonce_commit.chain_height_ == height_);
-  if (state_ != Commit) {
-    return Error(E::InvalidBroadcast_NotInCommit);
-  }
-  auto user_id = nonce_commit.user_id_;
-  auto it = participant_keys_.find(user_id);
-  if (it == participant_keys_.end()) {
-    return Error(E::InvalidBroadcast_UnknownUserId);
-  }
-  auto public_key = it->second;
-  if (!may_skip_signatures_validation_) {
-    TRY_STATUS(verify_signature(public_key, nonce_commit));
-  }
-
-  if (committed_.count(user_id) != 0) {
-    return Error(E::InvalidBroadcast_AlreadyApplied);
-  }
-
-  committed_[user_id] = nonce_commit.nonce_hash_.as_slice().str();
-  users_[user_id].receive_commit_at_ = td::Timestamp::now();
-
-  if (committed_.size() == participant_keys_.size()) {
-    state_ = Reveal;
-    reveal_at_ = td::Timestamp::now();
-  }
-
-  return td::Status::OK();
-}
-td::Status CallVerificationChain::process_broadcast(e2e::e2e_chain_groupBroadcastNonceReveal &nonce_reveal) {
-  CHECK(nonce_reveal.chain_height_ == height_);
-  if (state_ != Reveal) {
-    return Error(E::InvalidBroadcast_NotInReveal);
-  }
-  auto user_id = nonce_reveal.user_id_;
-  auto user_id_it = participant_keys_.find(user_id);
-  if (user_id_it == participant_keys_.end()) {
-    return Error(E::InvalidBroadcast_UnknownUserId);
-  }
-  auto public_key = user_id_it->second;
-  if (!may_skip_signatures_validation_) {
-    TRY_STATUS(verify_signature(public_key, nonce_reveal));
-  }
-
-  if (revealed_.count(user_id) != 0) {
-    return Error(E::InvalidBroadcast_AlreadyApplied);
-  }
-
-  auto it = committed_.find(user_id);
-  CHECK(it != committed_.end());
-  auto expected_nonce_hash = it->second;
-  auto received_nonce_hash = td::sha256(nonce_reveal.nonce_.as_slice());
-  if (expected_nonce_hash != received_nonce_hash) {
-    return Error(E::InvalidBroadcast_InvalidReveal);
-  }
-
-  revealed_[user_id] = nonce_reveal.nonce_.as_slice().str();
-  users_[user_id].receive_reveal_at_ = td::Timestamp::now();
-
-  CHECK(!verification_state_.emoji_hash);
-  if (revealed_.size() == participant_keys_.size()) {
-    auto nonces = td::transform(revealed_, [](auto &p) { return p.second; });
-    std::sort(nonces.begin(), nonces.end());
-
-    std::string full_nonce;
-    for (auto &nonce : nonces) {
-      full_nonce += nonce;
-    }
-
-    verification_state_.emoji_hash =
-        MessageEncryption::hmac_sha512(full_nonce, last_block_hash_.as_slice()).as_slice().str();
-    state_ = End;
-    done_at_ = td::Timestamp::now();
-  }
-  return td::Status::OK();
-}
-CallEncryption::CallEncryption(td::int64 user_id, PrivateKey private_key)
-    : user_id_(user_id), private_key_(std::move(private_key)) {
-}
-td::Status CallEncryption::add_shared_key(td::int32 epoch, td::SecureString key, GroupStateRef group_state) {
-  sync();
-
-  TRY_RESULT(self, group_state->get_participant(private_key_.to_public_key()));
-  if (self.user_id != user_id_) {
-    // should not happen
-    return td::Status::Error("Wrong user identifier in state");
-  }
-
-  LOG(INFO) << "Add key from epoch: " << epoch;
-  auto added = epochs_.emplace(epoch, EpochInfo(epoch, self.user_id, std::move(key), std::move(group_state))).second;
-  CHECK(added);
-  return td::Status::OK();
-}
-void CallEncryption::forget_shared_key(td::int32 epoch) {
-  sync();
-  epochs_to_forget_.emplace(td::Timestamp::in(FORGET_EPOCH_DELAY), epoch);
-}
-
-td::Result<std::string> CallEncryption::decrypt(td::int64 user_id, td::int32 channel_id, td::Slice encrypted_data) {
-  sync();
-  if (user_id == user_id_) {
-    return td::Status::Error("Packet is encrypted by us");
-  }
-  td::TlParser parser(encrypted_data);
-  auto head = static_cast<td::uint32>(parser.fetch_int());
-  td::int32 epochs_n = head & 0xff;
-  auto version = (head >> 8) & 0xff;
-  auto reserved = head >> 16;
-
-  if (version != 0) {
-    return td::Status::Error("Unsupported protocol version");
-  }
-  if (reserved != 0) {
-    return td::Status::Error("Reserved part of head is not zero");
-  }
-
-  if (epochs_n > MAX_ACTIVE_EPOCHS) {
-    return td::Status::Error("Too many active epochs");
-  }
-
-  using td::parse;
-
-  std::vector<td::int32> epochs;
-  for (td::int32 i = 0; i < epochs_n; i++) {
-    epochs.push_back(parser.fetch_int());
-  }
-  auto unencrypted_header = encrypted_data.substr(0, encrypted_data.size() - parser.get_left_len());
-
-  std::vector<td::Slice> encrypted_headers;
-  for (td::int32 i = 0; i < epochs_n; i++) {
-    auto encrypted_header = parser.template fetch_string_raw<td::Slice>(32);
-    encrypted_headers.emplace_back(encrypted_header);
-  }
-
-  auto encrypted_packet = parser.template fetch_string_raw<td::Slice>(parser.get_left_len());
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-
-  for (td::int32 i = 0; i < epochs_n; i++) {
-    auto epoch = epochs[i];
-    auto encrypted_header = encrypted_headers[i];
-    if (auto it = epochs_.find(epoch); it != epochs_.end()) {
-      auto &epoch_info = it->second;
-      TRY_RESULT(one_time_secret,
-                 MessageEncryption::decrypt_header(encrypted_header, encrypted_packet, epoch_info.secret_));
-      return decrypt_packet_with_secret(user_id, channel_id, unencrypted_header, encrypted_packet, one_time_secret,
-                                        epoch_info.group_state_);
-    }
-  }
-  return Error(E::Decrypt_UnknownEpoch);
-}
-
-td::Result<std::string> CallEncryption::encrypt(td::int32 channel_id, td::Slice decrypted_data) {
-  sync();
-
-  // use all active epochs
-  if (epochs_.empty()) {
-    return Error(E::Encrypt_UnknownEpoch);
-  }
-  auto epochs_n = td::narrow_cast<td::int32>(epochs_.size());
-
-  using td::store;
-  std::string header_a = lambda_serialize([&](auto &storer) {
-    store(epochs_n, storer);
-    for (auto &[epoch_i, epoch] : epochs_) {
-      store(epoch_i, storer);
-    }
-  });
-
-  td::SecureString one_time_secret(32, 0);
-  td::Random::secure_bytes(one_time_secret.as_mutable_slice());
-  TRY_RESULT(encrypted_packet, encrypt_packet_with_secret(channel_id, header_a, decrypted_data, one_time_secret));
-
-  std::vector<td::SecureString> encrypted_headers;
-  for (auto &[epoch_i, epoch] : epochs_) {
-    TRY_RESULT(encrypted_header, MessageEncryption::encrypt_header(one_time_secret, encrypted_packet, epoch.secret_));
-    encrypted_headers.emplace_back(std::move(encrypted_header));
-  }
-
-  std::string header_b = lambda_serialize([&](auto &storer) {
-    for (auto &encrypted_header : encrypted_headers) {
-      CHECK(encrypted_header.size() == 32);
-      storer.store_slice(encrypted_header);
-    }
-  });
-
-  //LOG(ERROR) << decrypted_data.size() << " -> " << header_a.size() << " + " << header_b.size() << " + " << encrypted_packet.size();
-  return header_a + header_b + encrypted_packet;
-}
-
-td::Result<std::string> CallEncryption::encrypt_packet_with_secret(td::int32 channel_id, td::Slice unencrypted_part,
-                                                                   td::Slice packet, td::Slice one_time_secret) {
-  TRY_STATUS(validate_channel_id(channel_id));
-  auto &seqno = seqno_[channel_id];
-  if (seqno == std::numeric_limits<td::uint32>::max()) {
-    return td::Status::Error("Seqno overflow");
-  }
-  seqno++;
-
-  td::UInt512 zero_signature{};
-  auto payload = lambda_serialize([&](auto &storer) {
-    using td::store;
-    store(static_cast<td::int32>(channel_id), storer);
-    store(seqno, storer);
-    storer.store_slice(packet);
-    storer.store_slice(zero_signature.as_mutable_slice());
-  });
-  CHECK(payload.size() >= 64);
-  auto signature_offset = payload.size() - 64;
-  auto encrypted_part = td::Slice(payload.data(), signature_offset);
-  auto to_sign = MessageEncryption::hmac_sha512(unencrypted_part, encrypted_part);
-
-  TRY_RESULT(signature, private_key_.sign(to_sign));
-  td::MutableSlice(payload).substr(signature_offset).copy_from(signature.to_slice());
-
-  // TODO: there is too much copies happening here. Almost all of them could be avoided
-  return MessageEncryption::encrypt_data(payload, one_time_secret).as_slice().str();
-}
-
-td::Result<std::string> CallEncryption::decrypt_packet_with_secret(
-    td::int64 expected_user_id, td::int32 expected_channel_id, td::Slice unencrypted_header, td::Slice encrypted_packet,
-    td::Slice one_time_secret, const GroupStateRef &group_state) {
-  TRY_RESULT(participant, group_state->get_participant(expected_user_id));
-  TRY_RESULT(payload_str, MessageEncryption::decrypt_data(encrypted_packet, one_time_secret));
-  auto payload = td::Slice(payload_str);
-  if (payload.size() < 64) {
-    return td::Status::Error("Not enough encryption data");
-  }
-  auto signature_offset = payload.size() - 64;
-
-  auto encrypted_part = payload.substr(0, signature_offset);
-  auto to_verify = MessageEncryption::hmac_sha512(unencrypted_header, encrypted_part);
-
-  TRY_RESULT(signature, Signature::from_slice(payload.substr(signature_offset)));
-  TRY_STATUS(participant.public_key.verify(to_verify, signature));
-
-  // we know that this is packet create by some participant
-  td::TlParser parser(payload);
-  td::int32 channel_id;
-  td::uint32 seqno{};
-  td::UInt512 signature_to_skip{};
-  parse(channel_id, parser);
-  TRY_STATUS(validate_channel_id(channel_id));
-  parse(seqno, parser);
-  if (parser.get_left_len() < 64) {
-    return td::Status::Error("Message is too short");
-  }
-  auto result = parser.template fetch_string_raw<std::string>(parser.get_left_len() - 64);
-  parse(signature_to_skip, parser);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-
-  if (channel_id != expected_channel_id) {
-    // currently ignore expected_channel_id
-    // return td::Status::Error("Channel identifier mismatch");
-  }
-  TRY_STATUS(check_not_seen(participant.public_key, channel_id, seqno));
-  mark_as_seen(participant.public_key, channel_id, seqno);
-  return result;
-}
-
-td::Status CallEncryption::check_not_seen(const PublicKey &public_key, td::int32 channel_id, td::uint32 seqno) {
-  auto &s = seen_[std::make_pair(public_key, channel_id)];
-  if (s.empty()) {
-    return td::Status::OK();
-  }
-  auto value = seqno;
-  if (value < *s.begin()) {
-    return td::Status::Error("Message is too old");
-  }
-  if (s.count(value) != 0) {
-    return td::Status::Error("Message is already processed");
-  }
-  return td::Status::OK();
-}
-
-void CallEncryption::mark_as_seen(const PublicKey &public_key, td::int32 channel_id, td::uint32 seqno) {
-  auto value = seqno;
-  auto &s = seen_[std::make_pair(public_key, channel_id)];
-  CHECK(s.insert(value).second);
-  while (s.size() > 1024 || (!s.empty() && *s.begin() + 1024 < seqno)) {
-    s.erase(s.begin());
-  }
-}
-
-void CallEncryption::sync() {
-  auto now = td::Timestamp::now();
-  while (!epochs_to_forget_.empty() &&
-         (epochs_to_forget_.front().first.is_in_past(now) || epochs_.size() > MAX_ACTIVE_EPOCHS)) {
-    auto epoch = epochs_to_forget_.front().second;
-    LOG(INFO) << "Forget key from epoch: " << epoch;
-    epochs_.erase(epoch);
-    epochs_to_forget_.pop();
-  }
-}
-
-td::Status CallEncryption::validate_channel_id(td::int32 channel_id) {
-  if (channel_id < 0 || channel_id > 1023) {
-    return Error(E::InvalidCallChannelId);
-  }
-  return td::Status::OK();
-}
-
-CallVerification CallVerification::create(td::int64 user_id, PrivateKey private_key, const Blockchain &blockchain) {
-  CallVerification result;
-  result.user_id_ = user_id;
-  result.private_key_ = std::move(private_key);
-  result.chain_.allow_delay();
-  result.chain_.set_user_id(user_id);
-  result.on_new_main_block(blockchain);
-  return result;
-}
-
-void CallVerification::on_new_main_block(const Blockchain &blockchain) {
-  auto nonce = generate_nonce();
-  td::UInt256 nonce_hash;
-  td::sha256(nonce.as_mutable_slice(), nonce_hash.as_mutable_slice());
-
-  auto height = td::narrow_cast<td::int32>(blockchain.get_height());
-  auto last_block_hash = blockchain.last_block_hash_;
-  auto nonce_commit_tl = e2e::e2e_chain_groupBroadcastNonceCommit({}, user_id_, height, last_block_hash, nonce_hash);
-  nonce_commit_tl.signature_ = sign(private_key_, nonce_commit_tl).move_as_ok().to_u512();
-  auto nonce_commit = serialize_boxed(nonce_commit_tl);
-
-  height_ = height;
-  last_block_hash_ = blockchain.last_block_hash_;
-  nonce_ = nonce;
-  sent_commit_ = true;
-  sent_reveal_ = false;
-  pending_outbound_messages_ = {nonce_commit};
-  chain_.on_new_main_block(blockchain);
-}
-
-CallVerificationWords CallVerification::get_verification_words() const {
-  return chain_.get_verification_words();
-}
-
-CallVerificationState CallVerification::get_verification_state() const {
-  return chain_.get_verification_state();
-}
-std::vector<std::string> CallVerification::pull_outbound_messages() {
-  std::vector<std::string> result;
-  std::swap(result, pending_outbound_messages_);
-  return result;
-}
-
-td::Status CallVerification::receive_inbound_message(td::Slice message) {
-  TRY_STATUS(chain_.try_apply_block(message));
-
-  if (chain_.get_state() == CallVerificationChain::Reveal && !sent_reveal_) {
-    sent_reveal_ = true;
-    auto nonce_reveal_tl = e2e::e2e_chain_groupBroadcastNonceReveal({}, user_id_, height_, last_block_hash_, nonce_);
-    nonce_reveal_tl.signature_ = sign(private_key_, nonce_reveal_tl).move_as_ok().to_u512();
-    auto nonce_reveal = serialize_boxed(nonce_reveal_tl);
-    CHECK(pending_outbound_messages_.empty());
-    pending_outbound_messages_.push_back(nonce_reveal);
-  }
-  return td::Status::OK();
-}
-
-Call::Call(td::int64 user_id, PrivateKey pk, ClientBlockchain blockchain)
-    : user_id_(user_id)
-    , private_key_(std::move(pk))
-    , blockchain_(std::move(blockchain))
-    , call_encryption_(user_id, private_key_) {
-  CHECK(private_key_);
-  call_verification_ = CallVerification::create(user_id_, private_key_, blockchain_.get_inner_chain());
-  LOG(INFO) << "Create call \n" << *this;
-}
-
-td::Result<std::string> Call::create_zero_block(const PrivateKey &private_key, GroupStateRef group_state) {
-  TRY_RESULT(blockchain, ClientBlockchain::create_empty());
-  TRY_RESULT(changes, make_changes_for_new_state(std::move(group_state)));
-  return blockchain.build_block(changes, private_key);
-}
-td::Result<std::string> Call::create_self_add_block(const PrivateKey &private_key, td::Slice previous_block_server,
-                                                    const GroupParticipant &self) {
-  TRY_RESULT(previous_block, Blockchain::from_server_to_local(previous_block_server.str()));
-  TRY_RESULT(blockchain, ClientBlockchain::create_from_block(previous_block, private_key.to_public_key()));
-  auto old_state = *blockchain.get_group_state();
-  td::remove_if(old_state.participants,
-                [&self](const GroupParticipant &participant) { return participant.user_id == self.user_id; });
-  old_state.participants.push_back(self);
-  auto new_group_state = std::make_shared<GroupState>(std::move(old_state));
-  TRY_RESULT(changes, make_changes_for_new_state(std::move(new_group_state)));
-  return blockchain.build_block(changes, private_key);
-}
-
-td::Result<Call> Call::create(td::int64 user_id, PrivateKey private_key, td::Slice last_block_server) {
-  TRY_RESULT(last_block, Blockchain::from_server_to_local(last_block_server.str()));
-  TRY_RESULT(blockchain, ClientBlockchain::create_from_block(last_block, private_key.to_public_key()));
-  auto call = Call(user_id, std::move(private_key), std::move(blockchain));
-  TRY_STATUS(call.update_group_shared_key());
-  return call;
-}
-
-td::Result<std::string> Call::build_change_state(GroupStateRef new_group_state) const {
-  TRY_STATUS(get_status());
-  TRY_RESULT(changes, make_changes_for_new_state(std::move(new_group_state)));
-  return blockchain_.build_block(changes, private_key_);
-}
-
-td::Result<std::vector<Change>> Call::make_changes_for_new_state(GroupStateRef group_state) {
-  TRY_RESULT(e_private_key, PrivateKey::generate());
-  td::SecureString group_shared_key(32);
-  td::Random::secure_bytes(group_shared_key.as_mutable_slice());
-
-  td::SecureString one_time_secret(32);
-  td::Random::secure_bytes(one_time_secret.as_mutable_slice());
-
-  auto encrypted_group_shared_key = MessageEncryption::encrypt_data(group_shared_key, one_time_secret);
-
-  std::vector<td::int64> dst_user_id;
-  std::vector<std::string> dst_header;
-  for (auto &participant : group_state->participants) {
-    auto public_key = participant.public_key;
-    TRY_RESULT(shared_key, e_private_key.compute_shared_secret(public_key));
-    dst_user_id.push_back(participant.user_id);
-    TRY_RESULT(header, MessageEncryption::encrypt_header(one_time_secret, encrypted_group_shared_key, shared_key));
-    dst_header.push_back(header.as_slice().str());
-  }
-  auto change_set_shared_key = Change{ChangeSetSharedKey{std::make_shared<GroupSharedKey>(
-      GroupSharedKey{e_private_key.to_public_key(), encrypted_group_shared_key.as_slice().str(), std::move(dst_user_id),
-                     std::move(dst_header)})}};
-  auto change_set_group_state = Change{ChangeSetGroupState{std::move(group_state)}};
-
-  return std::vector<Change>{std::move(change_set_group_state), std::move(change_set_shared_key)};
-}
-
-td::Result<td::int32> Call::get_height() const {
-  TRY_STATUS(get_status());
-  return td::narrow_cast<td::int32>(blockchain_.get_height());
-}
-
-td::Result<GroupStateRef> Call::get_group_state() const {
-  TRY_STATUS(get_status());
-  return blockchain_.get_group_state();
-}
-
-td::Status Call::apply_block(td::Slice server_block) {
-  TRY_STATUS(get_status());
-  TRY_RESULT(block, Blockchain::from_server_to_local(server_block.str()));
-  auto status = do_apply_block(block);
-  if (status.is_error()) {
-    LOG(ERROR) << "Failed to apply block: " << status << "\n" << Block::from_tl_serialized(block);
-    status_ = std::move(status);
-  } else {
-    LOG(INFO) << "Block has been applied\n" << *this;
-  }
-
-  return get_status();
-}
-td::Status Call::do_apply_block(td::Slice block) {
-  TRY_RESULT(changes, blockchain_.try_apply_block(block));
-  call_verification_.on_new_main_block(blockchain_.get_inner_chain());
-  TRY_STATUS(update_group_shared_key());
-  return td::Status::OK();
-}
-
-td::Result<td::SecureString> Call::decrypt_shared_key() {
-  auto group_shared_key = blockchain_.get_group_shared_key();
-  for (size_t i = 0; i < group_shared_key->dest_user_id.size(); i++) {
-    if (group_shared_key->dest_user_id[i] == user_id_) {
-      TRY_RESULT(shared_key, private_key_.compute_shared_secret(group_shared_key->ek));
-      TRY_RESULT(one_time_secret,
-                 MessageEncryption::decrypt_header(group_shared_key->dest_header[i],
-                                                   group_shared_key->encrypted_shared_key, shared_key));
-      TRY_RESULT(decrypted_shared_key,
-                 MessageEncryption::decrypt_data(group_shared_key->encrypted_shared_key, one_time_secret));
-      if (decrypted_shared_key.size() != 32) {
-        return td::Status::Error("Invalid shared key (size != 32)");
-      }
-      return decrypted_shared_key;
-    }
-  }
-  return td::Status::Error("Could not find user_id in group_shared_key");
-}
-
-td::Status Call::update_group_shared_key() {
-  // NB: we drop key immediately, we don't want old key to be active due to some errors later
-  group_shared_key_ = {};
-  call_encryption_.forget_shared_key(td::narrow_cast<td::int32>(blockchain_.get_height() - 1));
-
-  auto group_state = blockchain_.get_group_state();
-
-  auto r_participant = group_state->get_participant(private_key_.to_public_key());
-  if (r_participant.is_error()) {
-    return Error(E::InvalidCallGroupState_NotParticipant);
-  }
-  auto participant = r_participant.move_as_ok();
-  if (participant.user_id != user_id_) {
-    return Error(E::InvalidCallGroupState_WrongUserId);
-  }
-
-  TRY_RESULT_ASSIGN(group_shared_key_, decrypt_shared_key());
-
-  return call_encryption_.add_shared_key(td::narrow_cast<td::int32>(blockchain_.get_height()), group_shared_key_.copy(),
-                                         group_state);
-}
-
-td::StringBuilder &operator<<(td::StringBuilder &sb, const CallVerificationChain &chain) {
-  sb << "Verification {height=" << chain.height_ << " state=";
-  switch (chain.state_) {
-    case CallVerificationChain::State::Commit:
-      sb << "commit";
-      break;
-    case CallVerificationChain::State::Reveal:
-      sb << "reveal";
-      break;
-    case CallVerificationChain::State::End:
-      sb << "done";
-      break;
-  }
-  sb << " commit_n=" << chain.committed_.size() << " reveal_n=" << chain.revealed_.size() << "}";
-  auto now = td::Timestamp::now();
-  sb << "\n\t\t";
-  sb << "commit->";
-  if (chain.state_ == CallVerificationChain::State::Commit) {
-    sb << (now.at() - chain.commit_at_.at()) << "s->...";
-  } else {
-    sb << (chain.reveal_at_.at() - chain.commit_at_.at()) << "s->reveal->";
-    if (chain.state_ == CallVerificationChain::State::Reveal) {
-      sb << (now.at() - chain.reveal_at_.at()) << "s->...";
-    } else {
-      sb << (chain.done_at_.at() - chain.reveal_at_.at()) << "s->done";
-    }
-  }
-  auto it = chain.users_.find(chain.user_id_);
-  if (it != chain.users_.end()) {
-    const CallVerificationChain::UserState &self = it->second;
-    sb << "\n\t\tself:";
-    if (self.receive_commit_at_) {
-      sb << " commit=" << self.receive_commit_at_.at() - chain.commit_at_.at() << "s";
-    } else {
-      sb << " commit=" << now.at() - chain.commit_at_.at() << "s...";
-    }
-    if (chain.state_ != CallVerificationChain::State::Commit) {
-      if (self.receive_reveal_at_) {
-        sb << " reveal=" << self.receive_reveal_at_.at() - chain.reveal_at_.at() << "s";
-      } else {
-        sb << " reveal=" << now.at() - chain.reveal_at_.at() << "s...";
-      }
-    }
-  }
-
-  {
-    sb << "\n\t\t";
-    sb << "commit =";
-    auto users = td::transform(chain.users_, [&](auto &key) {
-      auto t = chain.users_.at(key.first).receive_commit_at_;
-      if (t) {
-        return std::make_tuple(-(t.at() - chain.commit_at_.at()), key.first, false);
-      }
-      return std::make_tuple(-(now.at() - chain.commit_at_.at()), key.first, true);
-    });
-    std::sort(users.begin(), users.end());
-    for (auto &user : users) {
-      sb << " " << std::get<1>(user) << ":" << -std::get<0>(user) << "s";
-      if (std::get<2>(user)) {
-        sb << "...";
-      }
-    }
-  }
-  if (chain.state_ != CallVerificationChain::State::Commit) {
-    sb << "\n\t\t";
-    sb << "reveal =";
-    auto users = td::transform(chain.users_, [&](auto &key) {
-      auto t = chain.users_.at(key.first).receive_reveal_at_;
-      if (t) {
-        return std::make_tuple(-(t.at() - chain.reveal_at_.at()), key.first, false);
-      }
-      return std::make_tuple(-(now.at() - chain.reveal_at_.at()), key.first, true);
-    });
-    std::sort(users.begin(), users.end());
-    for (auto &user : users) {
-      sb << " " << std::get<1>(user) << ":" << -std::get<0>(user) << "s";
-      if (std::get<2>(user)) {
-        sb << "...";
-      }
-    }
-  }
-
-  return sb;
-}
-
-td::StringBuilder &operator<<(td::StringBuilder &sb, const CallVerification &verification) {
-  return sb << verification.chain_;
-}
-td::StringBuilder &operator<<(td::StringBuilder &sb, const Call &call) {
-  auto status = call.get_status();
-  sb << "Call{" << call.blockchain_.get_height() << ":" << call.private_key_.to_public_key() << "}";
-  if (status.is_error()) {
-    sb << "\nCALL_FAILED: " << call.status_;
-  }
-  auto group_state = call.blockchain_.get_group_state();
-  sb << "\n\tusers=" << td::transform(group_state->participants, [](auto &p) { return p.user_id; });
-  sb << "\n\tpkeys=" << td::transform(group_state->participants, [](auto &p) { return p.public_key; });
-  sb << "\n\t" << call.call_verification_;
-  return sb;
-}
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Call.h b/third-party/td/td/tde2e/td/e2e/Call.h
deleted file mode 100644
index 9ed7a98696..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Call.h
+++ /dev/null
@@ -1,228 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/Blockchain.h"
-#include "td/e2e/Container.h"
-#include "td/e2e/e2e_api.h"
-
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-#include "td/utils/UInt.h"
-#include "td/utils/VectorQueue.h"
-
-#include <map>
-#include <set>
-#include <utility>
-
-namespace tde2e_core {
-
-using tde2e_api::CallVerificationState;
-using tde2e_api::CallVerificationWords;
-
-struct CallVerificationChain {
-  enum State {
-    End,
-    Commit,
-    Reveal,
-  };
-  State get_state() const;
-  void on_new_main_block(const Blockchain &blockhain);
-  td::Status try_apply_block(td::Slice message);
-  std::string to_short_string(e2e::object_ptr<e2e::e2e_chain_GroupBroadcast> &broadcast);
-
-  CallVerificationState get_verification_state() const;
-  CallVerificationWords get_verification_words() const;
-
-  void set_user_id(td::int64 user_id) {
-    user_id_ = user_id;
-  }
-  void allow_delay() {
-    delay_allowed_ = true;
-  }
-  void skip_signatures_validation() {
-    may_skip_signatures_validation_ = true;
-  }
-
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const CallVerificationChain &chain);
-
- private:
-  td::Status process_broadcast(std::string message, e2e::object_ptr<e2e::e2e_chain_GroupBroadcast> broadcast);
-  td::Status process_broadcast(e2e::e2e_chain_groupBroadcastNonceCommit &nonce_commit);
-  td::Status process_broadcast(e2e::e2e_chain_groupBroadcastNonceReveal &nonce_reveal);
-
-  State state_{End};
-  CallVerificationState verification_state_;
-  CallVerificationWords verification_words_;
-  td::int32 height_{-1};
-  td::UInt256 last_block_hash_{};
-  std::map<td::int64, PublicKey> participant_keys_;
-  std::map<td::int64, std::string> committed_;
-  std::map<td::int64, std::string> revealed_;
-
-  td::int64 user_id_{};
-
-  td::Timestamp commit_at_{};
-  td::Timestamp reveal_at_{};
-  td::Timestamp done_at_{};
-  struct UserState {
-    td::Timestamp receive_commit_at_{};
-    td::Timestamp receive_reveal_at_{};
-  };
-  std::map<td::int64, UserState> users_;
-
-  bool delay_allowed_{false};
-  bool may_skip_signatures_validation_{false};
-  std::map<td::int32, std::vector<std::pair<std::string, e2e::object_ptr<e2e::e2e_chain_GroupBroadcast>>>>
-      delayed_broadcasts_;
-};
-
-class CallEncryption {
- public:
-  CallEncryption(td::int64 user_id, PrivateKey private_key);
-  td::Status add_shared_key(td::int32 epoch, td::SecureString key, GroupStateRef group_state);
-  void forget_shared_key(td::int32 epoch);
-
-  td::Result<std::string> decrypt(td::int64 expected_user_id, td::int32 expected_channel_id, td::Slice encrypted_data);
-  td::Result<std::string> encrypt(td::int32 channel_id, td::Slice decrypted_data);
-
- private:
-  static constexpr double FORGET_EPOCH_DELAY = 10;
-  static constexpr td::int32 MAX_ACTIVE_EPOCHS = 15;
-  td::int64 user_id_{};
-  PrivateKey private_key_;
-
-  struct EpochInfo {
-    EpochInfo(td::int32 epoch, td::int64 user_id, td::SecureString secret, GroupStateRef group_state)
-        : epoch_(epoch), user_id_(user_id), secret_(std::move(secret)), group_state_(std::move(group_state)) {
-    }
-
-    td::int32 epoch_{};
-    td::int64 user_id_{};
-    td::SecureString secret_;
-    GroupStateRef group_state_;
-  };
-
-  std::map<td::int32, td::uint32> seqno_;
-  std::map<td::int32, EpochInfo> epochs_;
-  td::VectorQueue<std::pair<td::Timestamp, td::int32>> epochs_to_forget_;
-  std::map<std::pair<PublicKey, td::int32>, std::set<td::uint32>> seen_;
-
-  void sync();
-
-  td::Result<std::string> encrypt_packet_with_secret(td::int32 channel_id, td::Slice header, td::Slice packet,
-                                                     td::Slice one_time_secret);
-  td::Result<std::string> decrypt_packet_with_secret(td::int64 expected_user_id, td::int32 expected_channel_id,
-                                                     td::Slice unencrypted_packet, td::Slice encrypted_packet,
-                                                     td::Slice one_time_secret, const GroupStateRef &group_state);
-  td::Status check_not_seen(const PublicKey &public_key, td::int32 channel_id, td::uint32 seqno);
-  void mark_as_seen(const PublicKey &public_key, td::int32 channel_id, td::uint32 seqno);
-  static td::Status validate_channel_id(td::int32 channel_id);
-};
-
-class CallVerification {
- public:
-  static CallVerification create(td::int64 user_id, PrivateKey private_key, const Blockchain &blockchain);
-  void on_new_main_block(const Blockchain &blockhain);
-  CallVerificationState get_verification_state() const;
-  std::vector<std::string> pull_outbound_messages();
-  CallVerificationWords get_verification_words() const;
-  td::Status receive_inbound_message(td::Slice message);
-
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const CallVerification &verification);
-
- private:
-  td::int64 user_id_{};
-  PrivateKey private_key_;
-  CallVerificationChain chain_;
-  std::vector<tde2e_api::Bytes> pending_outbound_messages_;
-  bool sent_commit_{false};
-  bool sent_reveal_{false};
-
-  td::int32 height_{-1};
-  td::UInt256 last_block_hash_{};
-  td::UInt256 nonce_{};
-};
-
-struct Call {
-  static td::Result<std::string> create_zero_block(const PrivateKey &private_key, GroupStateRef group_state);
-  static td::Result<std::string> create_self_add_block(const PrivateKey &private_key, td::Slice previous_block,
-                                                       const GroupParticipant &self);
-
-  static td::Result<Call> create(td::int64 user_id, PrivateKey private_key, td::Slice last_block);
-  static td::Result<std::vector<Change>> make_changes_for_new_state(GroupStateRef group_state);
-
-  td::Result<std::string> build_change_state(GroupStateRef new_group_state) const;
-  td::Result<td::int32> get_height() const;
-  td::Result<GroupStateRef> get_group_state() const;
-
-  td::Status apply_block(td::Slice block);
-
-  td::Status get_status() const {
-    if (status_.is_error()) {
-      return Error(E::CallFailed, PSLICE() << status_);
-    }
-    return td::Status::OK();
-  }
-
-  td::Result<td::SecureString> shared_key() const {
-    TRY_STATUS(get_status());
-    return group_shared_key_.copy();
-  }
-
-  td::Result<std::string> decrypt(td::int64 user_id, td::int32 channel_id, td::Slice encrypted_data) {
-    TRY_STATUS(get_status());
-    return call_encryption_.decrypt(user_id, channel_id, encrypted_data);
-  }
-  td::Result<std::string> encrypt(td::int32 channel_id, td::Slice decrypted_data) {
-    TRY_STATUS(get_status());
-    return call_encryption_.encrypt(channel_id, decrypted_data);
-  }
-
-  td::Result<std::vector<std::string>> pull_outbound_messages() {
-    TRY_STATUS(get_status());
-    return call_verification_.pull_outbound_messages();
-  }
-
-  td::Result<CallVerificationState> get_verification_state() const {
-    TRY_STATUS(get_status());
-    return call_verification_.get_verification_state();
-  }
-  td::Result<CallVerificationWords> get_verification_words() const {
-    TRY_STATUS(get_status());
-    return call_verification_.get_verification_words();
-  }
-  td::Result<CallVerificationState> receive_inbound_message(td::Slice verification_message) {
-    TRY_STATUS(get_status());
-    // For now, don't fail the call in case of some errors
-    TRY_RESULT(local_verification_message, Blockchain::from_server_to_local(verification_message.str()));
-    TRY_STATUS(call_verification_.receive_inbound_message(local_verification_message));
-    return get_verification_state();
-  }
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const Call &call);
-
- private:
-  td::Status status_{td::Status::OK()};
-  td::int64 user_id_{0};
-  PrivateKey private_key_;
-  ClientBlockchain blockchain_;
-  CallVerification call_verification_;
-  CallEncryption call_encryption_;
-  td::SecureString group_shared_key_;
-
-  Call(td::int64 user_id, PrivateKey pk, ClientBlockchain blockchain);
-
-  td::Status update_group_shared_key();
-  td::Status do_apply_block(td::Slice block);
-  td::Result<td::SecureString> decrypt_shared_key();
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/CheckSharedSecret.cpp b/third-party/td/td/tde2e/td/e2e/CheckSharedSecret.cpp
deleted file mode 100644
index 032237419f..0000000000
--- a/third-party/td/td/tde2e/td/e2e/CheckSharedSecret.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/CheckSharedSecret.h"
-
-#include "td/utils/crypto.h"
-
-#include <utility>
-
-namespace tde2e_core {
-
-CheckSharedSecret CheckSharedSecret::create() {
-  CheckSharedSecret result;
-  result.nonce_ = generate_nonce();
-  td::sha256(result.nonce_.as_slice(), result.nonce_hash_.as_mutable_slice());
-  return result;
-}
-
-td::UInt256 CheckSharedSecret::commit_nonce() const {
-  return nonce_hash_;
-}
-
-td::Result<td::UInt256> CheckSharedSecret::reveal_nonce() const {
-  if (!o_other_nonce_hash_) {
-    return td::Status::Error("Cannot reveal nonce before other nonce hash is known");
-  }
-  return nonce_;
-}
-
-td::Status CheckSharedSecret::recive_commit_nonce(const td::UInt256 &other_nonce_hash) {
-  if (o_other_nonce_hash_) {
-    return td::Status::Error("Already received other nonce hash");
-  }
-  o_other_nonce_hash_ = other_nonce_hash;
-  return td::Status::OK();
-}
-
-td::Status CheckSharedSecret::receive_reveal_nonce(const td::UInt256 &other_nonce) {
-  if (!o_other_nonce_hash_) {
-    return td::Status::Error("Cannot  receive nonce before nonce hash");
-  }
-  td::UInt256 expected_nonce_hash;
-  td::sha256(other_nonce.as_slice(), expected_nonce_hash.as_mutable_slice());
-  if (expected_nonce_hash != *o_other_nonce_hash_) {
-    return td::Status::Error("Other nonce hash is different from the expected one");
-  }
-  o_other_nonce_ = other_nonce;
-  return td::Status::OK();
-}
-
-td::Result<td::UInt256> CheckSharedSecret::finalize_hash(td::Slice shared_secret) const {
-  if (!o_other_nonce_) {
-    return td::Status::Error("Cannot calculate hash before other nonce is known");
-  }
-  td::UInt256 a = nonce_;
-  td::UInt256 b = *o_other_nonce_;
-  if (b < a) {
-    std::swap(a, b);
-  }
-  td::Sha256State state;
-  state.init();
-  state.feed(shared_secret);
-  state.feed(a.as_slice());
-  state.feed(b.as_slice());
-
-  td::UInt256 hash;
-  state.extract(hash.as_mutable_slice());
-
-  return hash;
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/CheckSharedSecret.h b/third-party/td/td/tde2e/td/e2e/CheckSharedSecret.h
deleted file mode 100644
index 2d7c71d8a4..0000000000
--- a/third-party/td/td/tde2e/td/e2e/CheckSharedSecret.h
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/utils.h"
-
-#include "td/utils/optional.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-namespace tde2e_core {
-
-struct CheckSharedSecret {
-  td::UInt256 nonce_;
-  td::UInt256 nonce_hash_;
-  td::optional<td::UInt256> o_other_nonce_hash_;
-  td::optional<td::UInt256> o_other_nonce_;
-
-  static CheckSharedSecret create();
-  td::UInt256 commit_nonce() const;
-  td::Result<td::UInt256> reveal_nonce() const;
-  td::Status recive_commit_nonce(const td::UInt256 &other_nonce_hash);
-  td::Status receive_reveal_nonce(const td::UInt256 &other_nonce);
-  td::Result<td::UInt256> finalize_hash(td::Slice shared_secret) const;
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Container.h b/third-party/td/td/tde2e/td/e2e/Container.h
deleted file mode 100644
index 01d1be1fb9..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Container.h
+++ /dev/null
@@ -1,255 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/e2e_errors.h"
-#include "td/e2e/utils.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#ifndef ENGINE
-#include "td/utils/SliceBuilder.h"
-#endif
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-#include <atomic>
-#include <memory>
-#include <mutex>
-#include <optional>
-#include <tuple>
-#include <type_traits>
-#include <utility>
-
-namespace tde2e_core {
-
-template <typename T, bool IsMutable, bool HasHash>
-struct TypeInfo {
-  using type = T;
-  static constexpr bool is_mutable = IsMutable;
-  static constexpr bool has_hash = HasHash;
-};
-
-template <typename T, typename...>
-struct TypeIndex;
-template <typename T, typename First, typename... Rest>
-struct TypeIndex<T, First, Rest...> {
-  static constexpr size_t value = std::is_same<T, typename First::type>::value ? 0 : 1 + TypeIndex<T, Rest...>::value;
-};
-template <typename T>
-struct TypeIndex<T> {
-  static constexpr size_t value = 0;
-};
-template <typename T, typename...>
-struct TypeInfoFor;
-template <typename T, typename First, typename... Rest>
-struct TypeInfoFor<T, First, Rest...> {
-  using type =
-      std::conditional_t<std::is_same<T, typename First::type>::value, First, typename TypeInfoFor<T, Rest...>::type>;
-};
-template <typename T>
-struct TypeInfoFor<T> {
-  using type = void;
-};
-
-template <typename T>
-struct MutableValue {
-  MutableValue(T value) : value(std::move(value)) {
-  }
-  T value;
-  mutable std::mutex mutex;
-};
-
-struct MutexUnlockDeleter {
-  std::shared_ptr<void> value_ptr;
-  std::unique_lock<std::mutex> lock;
-
-  MutexUnlockDeleter(MutexUnlockDeleter &&other) : value_ptr(std::move(other.value_ptr)), lock(std::move(other.lock)) {
-  }
-  template <typename T>
-  MutexUnlockDeleter(std::shared_ptr<MutableValue<T>> ptr, std::unique_lock<std::mutex> &&l)
-      : value_ptr(std::move(ptr)), lock(std::move(l)) {
-  }
-
-  template <typename T>
-  void operator()(T * /*unused*/) {
-  }
-};
-
-template <typename TypeInfo>
-struct TypeStorage {
-  using T = typename TypeInfo::type;
-  using ValueType = std::conditional_t<TypeInfo::is_mutable, MutableValue<T>, T>;
-  using ValueRef = std::shared_ptr<ValueType>;
-
-  struct Entry {
-    Entry(std::optional<td::UInt256> o_hash, ValueRef value) : o_hash(std::move(o_hash)), value(std::move(value)) {
-    }
-    std::optional<td::UInt256> o_hash;
-    ValueRef value;
-  };
-
-  td::FlatHashMap<td::int64, Entry> values;
-  td::FlatHashMap<td::UInt256, td::int64, UInt256Hash> hash_to_id;
-  mutable std::mutex map_mutex;
-};
-
-template <typename T>
-using SharedRef = std::shared_ptr<const T>;
-template <typename T>
-using UniqueRef = std::unique_ptr<T, MutexUnlockDeleter>;
-
-template <typename... TypeInfos>
-class Container {
-  using StoragesTuple = std::tuple<TypeStorage<TypeInfos>...>;
-  StoragesTuple storages_;
-  std::atomic<td::int64> next_id{1};
-
-  template <typename T>
-  auto &get_storage() {
-    constexpr size_t index = TypeIndex<T, TypeInfos...>::value;
-    return std::get<index>(storages_);
-  }
-
-  template <typename T>
-  const auto &get_storage() const {
-    constexpr size_t index = TypeIndex<T, TypeInfos...>::value;
-    return std::get<index>(storages_);
-  }
-
- public:
-  using Id = td::int64;
-
-  template <typename T, typename... Args>
-  Id emplace(Args &&...args) {
-    return try_build<T>({}, [&]() -> td::Result<T> { return T(std::forward<Args>(args)...); }).move_as_ok();
-  }
-  template <typename T, typename... Args>
-  Id try_emplace(td::UInt256 hash, Args &&...args) {
-    return try_build<T>(hash, [&]() -> td::Result<T> { return T(std::forward<Args>(args)...); }).move_as_ok();
-  }
-
-  template <typename T, typename F>
-  td::Result<Id> try_build(std::optional<td::UInt256> o_hash, F &&f) {
-    using TI = typename TypeInfoFor<T, TypeInfos...>::type;
-    auto &storage = get_storage<T>();
-
-    if constexpr (TI::has_hash) {
-      if (o_hash) {
-        std::unique_lock map_lock(storage.map_mutex);
-        auto it = storage.hash_to_id.find(*o_hash);
-        if (it != storage.hash_to_id.end()) {
-          return it->second;
-        }
-      }
-    } else {
-      CHECK(!o_hash);
-    }
-
-    TRY_RESULT(value, f());
-
-    std::unique_lock map_lock(storage.map_mutex);
-    if constexpr (TI::has_hash) {
-      if (o_hash) {
-        auto it = storage.hash_to_id.find(*o_hash);
-        if (it != storage.hash_to_id.end()) {
-          return it->second;
-        }
-      }
-    }
-
-    auto id = next_id.fetch_add(1, std::memory_order_relaxed);
-    if constexpr (TI::is_mutable) {
-      auto value_ptr = std::make_shared<MutableValue<T>>(std::move(value));
-      storage.values.emplace(id, std::move(o_hash), value_ptr);
-    } else {
-      auto value_ptr = std::make_shared<T>(std::move(value));
-      storage.values.emplace(id, std::move(o_hash), value_ptr);
-    }
-
-    if constexpr (TI::has_hash) {
-      if (o_hash) {
-        storage.hash_to_id.emplace(*o_hash, id);
-      }
-    }
-    return id;
-  }
-
-  template <typename T>
-  td::Result<SharedRef<T>> get_shared(Id id) const {
-    using TI = typename TypeInfoFor<T, TypeInfos...>::type;
-    static_assert(!TI::is_mutable, "Use get_mutable for mutable types");
-    const auto &storage = get_storage<T>();
-
-    std::unique_lock map_lock(storage.map_mutex);
-    auto it = storage.values.find(id);
-    if (it == storage.values.end()) {
-      return td::Status::Error(static_cast<int>(tde2e_api::ErrorCode::InvalidId), PSLICE()
-                                                                                      << "Invalid identifier = " << id);
-    }
-    return it->second.value;
-  }
-
-  template <typename T>
-  td::Result<UniqueRef<T>> get_unique(Id id) {
-    using TI = typename TypeInfoFor<T, TypeInfos...>::type;
-    static_assert(TI::is_mutable, "Use get_shared for immutable types");
-    auto &storage = get_storage<T>();
-
-    std::unique_lock map_lock(storage.map_mutex);
-    auto it = storage.values.find(id);
-    if (it == storage.values.end()) {
-      return td::Status::Error(static_cast<int>(tde2e_api::ErrorCode::InvalidId), PSLICE()
-                                                                                      << "Invalid identifier = " << id);
-    }
-
-    auto value_ref = it->second.value;
-    std::unique_lock value_lock(value_ref->mutex);
-    auto value_ptr = &value_ref->value;
-
-    return std::unique_ptr<T, MutexUnlockDeleter>(value_ptr,
-                                                  MutexUnlockDeleter(std::move(value_ref), std::move(value_lock)));
-  }
-
-  template <typename T>
-  td::Status destroy(std::optional<Id> o_id) {
-    auto &storage = get_storage<T>();
-    std::scoped_lock<std::mutex> lock(storage.map_mutex);
-    if (o_id) {
-      auto it = storage.values.find(*o_id);
-      if (it == storage.values.end()) {
-        return td::Status::Error(static_cast<int>(tde2e_api::ErrorCode::InvalidInput), "Unknown key identifier");
-      }
-      if (it->second.o_hash) {
-        storage.hash_to_id.erase(*it->second.o_hash);
-      }
-      storage.values.erase(it);
-      return td::Status::OK();
-    }
-    storage.hash_to_id.clear();
-    storage.values.clear();
-    return td::Status::OK();
-  }
-};
-
-template <class T, class S>
-td::Result<SharedRef<T>> convert(SharedRef<S> from) {
-  if (std::holds_alternative<T>(*from)) {
-    return SharedRef<T>(from, &std::get<T>(*from));
-  }
-  return td::Status::Error(static_cast<int>(tde2e_api::ErrorCode::UnknownError), "TODO");
-}
-template <class T, class S>
-td::Result<UniqueRef<T>> convert(UniqueRef<S> from) {
-  if (std::holds_alternative<T>(*from)) {
-    auto value_ptr = &std::get<T>(*from);
-    return UniqueRef<T>(value_ptr, std::move(from.get_deleter()));
-  }
-  return td::Status::Error(static_cast<int>(tde2e_api::ErrorCode::UnknownError), "TODO");
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/DecryptedKey.cpp b/third-party/td/td/tde2e/td/e2e/DecryptedKey.cpp
deleted file mode 100644
index 0cfe7e1d45..0000000000
--- a/third-party/td/td/tde2e/td/e2e/DecryptedKey.cpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/DecryptedKey.h"
-
-#include "td/e2e/EncryptedKey.h"
-#include "td/e2e/MessageEncryption.h"
-
-#include "td/utils/algorithm.h"
-
-namespace tde2e_core {
-
-DecryptedKey::DecryptedKey(const Mnemonic &mnemonic)
-    : mnemonic_words(mnemonic.get_words()), private_key(mnemonic.to_private_key()) {
-}
-DecryptedKey::DecryptedKey(std::vector<td::SecureString> mnemonic_words, PrivateKey key)
-    : mnemonic_words(std::move(mnemonic_words)), private_key(std::move(key)) {
-}
-DecryptedKey::DecryptedKey(RawDecryptedKey key)
-    : DecryptedKey(std::move(key.mnemonic_words), PrivateKey::from_slice(key.private_key).move_as_ok()) {
-}
-
-EncryptedKey DecryptedKey::encrypt(td::Slice local_password, td::Slice secret) const {
-  td::SecureString decrypted_secret = MessageEncryption::hmac_sha512(secret, local_password);
-
-  td::SecureString encryption_secret =
-      MessageEncryption::kdf(as_slice(decrypted_secret), "tde2e local key", EncryptedKey::PBKDF_ITERATIONS);
-
-  std::vector<td::SecureString> mnemonic_words_copy =
-      td::transform(mnemonic_words, [](const auto &word) { return word.copy(); });
-  auto data = td::serialize_secure(RawDecryptedKey{std::move(mnemonic_words_copy), private_key.to_secure_string()});
-  auto encrypted_data = MessageEncryption::encrypt_data(data, as_slice(encryption_secret));
-
-  return EncryptedKey{std::move(encrypted_data), private_key.to_public_key(), {}};
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/DecryptedKey.h b/third-party/td/td/tde2e/td/e2e/DecryptedKey.h
deleted file mode 100644
index 27193bbd19..0000000000
--- a/third-party/td/td/tde2e/td/e2e/DecryptedKey.h
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/Mnemonic.h"
-
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tl_helpers.h"
-
-#include <string>
-#include <vector>
-
-namespace tde2e_core {
-
-struct RawDecryptedKey {
-  std::vector<td::SecureString> mnemonic_words;
-  td::SecureString private_key;
-
-  template <class StorerT>
-  void store(StorerT &storer) const {
-    using td::store;
-    store(mnemonic_words, storer);
-    store(private_key, storer);
-  }
-
-  template <class ParserT>
-  void parse(ParserT &parser) {
-    using td::parse;
-    parse(mnemonic_words, parser);
-    parse(private_key, parser);
-  }
-};
-
-struct EncryptedKey;
-struct DecryptedKey {
-  DecryptedKey() = delete;
-  explicit DecryptedKey(const Mnemonic &mnemonic);
-  DecryptedKey(std::vector<td::SecureString> mnemonic_words, PrivateKey key);
-  explicit DecryptedKey(RawDecryptedKey key);
-
-  std::vector<td::SecureString> mnemonic_words;
-  PrivateKey private_key;
-
-  EncryptedKey encrypt(td::Slice local_password, td::Slice secret = {}) const;
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/EncryptedKey.cpp b/third-party/td/td/tde2e/td/e2e/EncryptedKey.cpp
deleted file mode 100644
index 5b8894be70..0000000000
--- a/third-party/td/td/tde2e/td/e2e/EncryptedKey.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/EncryptedKey.h"
-
-#include "td/e2e/DecryptedKey.h"
-#include "td/e2e/MessageEncryption.h"
-
-#include "td/utils/tl_helpers.h"
-
-namespace tde2e_core {
-
-td::Result<DecryptedKey> EncryptedKey::decrypt(td::Slice local_password, bool check_public_key) const {
-  /*
-  if (secret.size() != 32) {
-    return td::Status::Error("Failed to decrypt key: invalid secret size");
-  }
-  */
-  auto decrypted_secret = MessageEncryption::hmac_sha512(secret, local_password);
-
-  td::SecureString encryption_secret =
-      MessageEncryption::kdf(as_slice(decrypted_secret), "tde2e local key", EncryptedKey::PBKDF_ITERATIONS);
-
-  TRY_RESULT(decrypted_data, MessageEncryption::decrypt_data(as_slice(encrypted_data), as_slice(encryption_secret)));
-
-  RawDecryptedKey raw_decrypted_key;
-  TRY_STATUS(td::unserialize(raw_decrypted_key, decrypted_data));
-  DecryptedKey res(std::move(raw_decrypted_key));
-  if (check_public_key && !(res.private_key.to_public_key() == this->o_public_key)) {
-    return td::Status::Error("Something wrong: public key of decrypted private key differs from requested public key");
-  }
-  return std::move(res);
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/EncryptedKey.h b/third-party/td/td/tde2e/td/e2e/EncryptedKey.h
deleted file mode 100644
index 37eb887f07..0000000000
--- a/third-party/td/td/tde2e/td/e2e/EncryptedKey.h
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/utils.h"
-
-#include "td/utils/optional.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace tde2e_core {
-
-struct DecryptedKey;
-struct EncryptedKey {
-  static constexpr int PBKDF_ITERATIONS = 100000;
-  static constexpr int PBKDF_FAST_ITERATIONS = 1;
-  td::SecureString encrypted_data;
-  td::optional<PublicKey> o_public_key;
-  td::SecureString secret;
-
-  td::Result<DecryptedKey> decrypt(td::Slice local_password, bool check_public_key = true) const;
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/EncryptedStorage.cpp b/third-party/td/td/tde2e/td/e2e/EncryptedStorage.cpp
deleted file mode 100644
index 76f1f5619f..0000000000
--- a/third-party/td/td/tde2e/td/e2e/EncryptedStorage.cpp
+++ /dev/null
@@ -1,365 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/EncryptedStorage.h"
-
-#include "td/e2e/Blockchain.h"
-
-#include "td/telegram/e2e_api.hpp"
-
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/tl_parsers.h"
-
-namespace tde2e_core {
-
-api::UserId from_tl(td::int64 user_id) {
-  return user_id;
-}
-
-api::Name from_tl(td::e2e_api::e2e_personalName &name) {
-  return api::Name{name.first_name_, name.last_name_};
-}
-
-api::UserId from_tl(td::e2e_api::e2e_personalUserId &user_id) {
-  return user_id.user_id_;
-}
-
-api::PhoneNumber from_tl(td::e2e_api::e2e_personalPhoneNumber &phone_number) {
-  return api::PhoneNumber{phone_number.phone_number_};
-}
-
-api::EmojiNonces from_tl(td::e2e_api::e2e_personalEmojiNonces &emoji_nonces) {
-  using Flags = td::e2e_api::e2e_personalEmojiNonces;
-  api::EmojiNonces res;
-  if ((emoji_nonces.flags_ & Flags::SELF_NONCE_MASK) != 0) {
-    res.self_nonce = from_td(emoji_nonces.self_nonce_);
-  }
-  return res;
-}
-
-api::ContactState from_tl(td::e2e_api::e2e_personalContactState &contact_state) {
-  return api::ContactState{contact_state.is_contact_ ? api::ContactState::Contact : api::ContactState::NotContact};
-}
-
-void init(api::Contact &contact, api::Entry<api::UserId> user_id) {
-  contact.o_user_id = user_id;
-}
-void init(api::Contact &contact, api::Entry<api::Name> name) {
-  contact.o_name = std::move(name);
-}
-void init(api::Contact &contact, api::Entry<api::PhoneNumber> phone_number) {
-  contact.o_phone_number = std::move(phone_number);
-}
-void init(api::Contact &contact, api::Entry<api::EmojiNonces> emoji_nonces) {
-  contact.emoji_nonces = std::move(emoji_nonces);
-}
-void init(api::Contact &contact, api::Entry<api::ContactState> contact_state) {
-  contact.contact_state = std::move(contact_state);
-}
-
-api::Contact from_tl(td::e2e_api::e2e_valueContactByPublicKey &value) {
-  api::Contact contact;
-  for (auto &entry : value.entries_) {
-    td::e2e_api::downcast_call(*entry->personal_, [&](auto &tl_value) {
-      auto entry_value = from_tl(tl_value);
-      using ValueT = decltype(entry_value);
-      init(contact, api::Entry<ValueT>{api::Entry<ValueT>::Self, static_cast<td::uint32>(entry->signed_at_),
-                                       std::move(entry_value)});
-    });
-  }
-  return contact;
-}
-
-bool reduce(api::Entry<api::EmojiNonces> &a, const api::Entry<api::EmojiNonces> &b) {
-  // do not care about timestamp, first write always win
-  // TODO: handle source
-  auto &nonces = a.value;
-  const auto &other_nonces = b.value;
-
-  bool changed = false;
-
-  if (!nonces.self_nonce && other_nonces.self_nonce) {
-    nonces.self_nonce = other_nonces.self_nonce;
-    changed = true;
-  }
-  if (!nonces.contact_nonce_hash && other_nonces.contact_nonce_hash) {
-    nonces.contact_nonce_hash = other_nonces.contact_nonce_hash;
-    changed = true;
-  }
-  if (!nonces.contact_nonce && other_nonces.contact_nonce) {
-    nonces.contact_nonce = other_nonces.contact_nonce;
-    changed = true;
-  }
-  return changed;
-}
-
-template <class T>
-bool reduce(api::Entry<T> &a, const api::Entry<T> &b) {
-  if (a.timestamp > b.timestamp) {
-    a = std::move(b);
-    return false;
-  }
-  // TODO: handle source
-  return false;
-}
-
-template <class T>
-bool reduce(api::Entry<T> &a, const std::optional<api::Entry<T>> &b) {
-  if (!b) {
-    return false;
-  }
-  return reduce(a, *b);
-}
-
-template <class T>
-bool reduce(std::optional<api::Entry<T>> &a, const std::optional<api::Entry<T>> &b) {
-  if (!a) {
-    a = b;
-    return static_cast<bool>(b);
-  }
-  if (!b) {
-    return false;
-  }
-  return reduce(*a, *b);
-}
-
-bool reduce(Update &a, const Update &b) {
-  bool changed = false;
-  changed = reduce(a.o_user_id, b.o_user_id);
-  changed = reduce(a.o_name, b.o_name);
-  changed = reduce(a.o_phone_number, b.o_phone_number);
-  changed = reduce(a.o_emoji_nonces, b.o_emoji_nonces);
-  changed = reduce(a.o_contact_state, b.o_contact_state);
-  return changed;
-}
-
-std::optional<Value> apply_update(const std::optional<Value> &o_value, const Update &update) {
-  auto value = o_value.value_or(Value());
-  bool changed = false;
-  changed |= reduce(value.o_name, update.o_name);
-  changed |= reduce(value.o_phone_number, update.o_phone_number);
-  changed |= reduce(value.o_user_id, update.o_user_id);
-  changed |= reduce(value.emoji_nonces, update.o_emoji_nonces);
-  changed |= reduce(value.contact_state, update.o_contact_state);
-  if (changed) {
-    return value;
-  }
-  return std::nullopt;
-}
-
-td::Status validate(const api::EmojiNonces &nonces) {
-  if (nonces.contact_nonce && !nonces.self_nonce) {
-    return td::Status::Error("Receive contact_nonce BEFORE self_nonce");
-  }
-  if (nonces.contact_nonce && !nonces.contact_nonce_hash) {
-    return td::Status::Error("Receive contact_nonce BEFORE concat_nonce_hash");
-  }
-  if (nonces.contact_nonce) {
-    auto &contact_nonce = nonces.contact_nonce.value();
-    api::Int256 contact_nonce_hash;
-    td::sha256(td::Slice(contact_nonce.data(), contact_nonce.size()),
-               td::MutableSlice(contact_nonce_hash.data(), contact_nonce_hash.size()));
-
-    if (contact_nonce_hash != nonces.contact_nonce_hash.value()) {
-      return td::Status::Error("Invalid concat_nonce (hash mismatch)");
-    }
-  }
-  return td::Status::OK();
-}
-
-td::Result<EncryptedStorage::UpdateId> EncryptedStorage::update(Key key, Update update) {
-  LOG(INFO) << "Update [receive] " << key << " " << update;
-
-  auto update_id = ++next_update_id_;
-  auto it = updates_.find(key);
-  if (it == updates_.end()) {
-    // create pending update (original value is unknown)
-    updates_.emplace(key, UpdateInfo{{update_id}, std::move(update), {}});
-    LOG(INFO) << "Update [delay] " << key << " " << update;
-    return update_id;
-  }
-
-  auto &update_info = it->second;
-  reduce(update_info.update, update);
-  update_info.update_ids.emplace_back(update_id);
-  LOG(INFO) << "Update [reduce] " << key << " " << update_info.update;
-
-  if (update_info.o_new_value && !reapply_update(update_info, std::move(update_info.o_new_value))) {
-    LOG(INFO) << "Update [drop] " << key << " " << update;
-    updates_.erase(it);
-  }
-  return update_id;
-}
-
-td::Result<std::optional<Value>> EncryptedStorage::get(Key key, bool optimistic) {
-  auto it = partial_key_value_.find(key);
-  if (it != partial_key_value_.end()) {
-    if (optimistic) {
-      auto update_it = updates_.find(key);
-      if (update_it != updates_.end()) {
-        CHECK(update_it->second.o_new_value);
-        return *update_it->second.o_new_value;
-      }
-    }
-    return it->second;
-  }
-  return td::Status::Error("NEED_PROOF");
-}
-
-td::int64 EncryptedStorage::get_height() const {
-  return blockchain_.get_height();
-}
-
-td::Result<EncryptedStorage::KeyValueUpdates> EncryptedStorage::apply_block(td::Slice block) {
-  TRY_RESULT(changes, blockchain_.try_apply_block(block));
-  KeyValueUpdates updates;
-  for (auto &change : changes) {
-    bool skip = false;
-    td::Result<std::pair<Key, std::optional<Value>>> r_p;
-    std::visit(td::overloaded([&](ChangeNoop &noop) {},
-                              [&](ChangeSetValue &set_value) { r_p = parse(set_value.key, set_value.value); },
-                              [&](ChangeSetGroupState &) { skip = true; }, [&](ChangeSetSharedKey &) { skip = true; }),
-               change.value);
-    if (skip) {
-      continue;
-    }
-    if (r_p.is_error()) {
-      LOG(ERROR) << "BUG! change from blockchain is ignored: " << r_p.error();
-      continue;
-    }
-    auto p = r_p.move_as_ok();
-    updates.updates.emplace_back(p.first, p.second);
-    sync_entry(std::move(p.first), std::move(p.second), true);
-  }
-  return updates;
-}
-
-td::Status EncryptedStorage::add_proof(td::Slice proof, td::Span<std::string> keys) {
-  TRY_STATUS(blockchain_.add_proof(proof));
-  // sync keys
-  for (const auto &key : keys) {
-    auto r_value = blockchain_.get_value(key);
-    if (r_value.is_error()) {
-      LOG(ERROR) << "Failed to get value from proof " << r_value.error();
-      continue;
-    }
-
-    auto raw_value = r_value.move_as_ok();
-    auto r_p = parse(key, raw_value);
-    if (r_p.is_error()) {
-      LOG(ERROR) << "BUG! value from blockchain is ignored: " << r_p.error();
-      continue;
-    }
-
-    auto p = r_p.move_as_ok();
-    sync_entry(std::move(p.first), std::move(p.second));
-  }
-
-  return td::Status::OK();
-}
-
-EncryptedStorage::BlockchainState EncryptedStorage::get_blockchain_state() {
-  //TODO add indexes
-
-  // check if some values are unknown
-  BlockchainState state;
-  std::vector<Change> changes;
-  for (auto &update : updates_) {
-    if (!update.second.o_new_value) {
-      state.need_proofs.emplace_back(encrypt_key(update.first));
-    } else {
-      changes.emplace_back(
-          Change{ChangeSetValue{encrypt_key(update.first), encrypt_value(update.second.o_new_value.value())}});
-    }
-  }
-  if (!changes.empty()) {
-    state.next_block = blockchain_.build_block(changes, private_key_).move_as_ok();
-  }
-  return state;
-}
-
-EncryptedStorage::KeyValueUpdates EncryptedStorage::pull_updates() {
-  return std::move(pending_key_value_updates_);
-}
-
-td::Result<std::pair<Key, std::optional<Value>>> EncryptedStorage::parse(td::Slice raw_key, td::Slice raw_value) {
-  TRY_RESULT(key, decrypt_key(raw_key));
-  TRY_RESULT(value, decrypt_value(raw_value));
-  return std::make_pair(std::move(key), std::move(value));
-}
-
-void EncryptedStorage::sync_entry(Key key, std::optional<Value> value, bool rewrite) {
-  LOG(INFO) << "Sync [new] " << key << " " << value;
-  auto p = partial_key_value_.try_emplace(key, std::move(value));
-  if (!p.second) {
-    if (rewrite) {
-      p.first->second = std::move(value);
-    } else {
-      // CHECK(p.first->second == value);
-    }
-  }
-
-  if (p.second || rewrite) {
-    auto it = updates_.find(key);
-    if (it != updates_.end()) {
-      auto &update_info = it->second;
-      if (!reapply_update(update_info, std::move(value))) {
-        LOG(INFO) << "Update [drop] " << key << " " << update_info.update;
-        updates_.erase(it);
-      }
-    }
-  }
-}
-
-bool EncryptedStorage::reapply_update(UpdateInfo &update_info, const std::optional<Value> &value) {
-  auto o_new_value = apply_update(value, update_info.update);
-  if (o_new_value) {
-    update_info.o_new_value = std::move(o_new_value);
-    LOG(INFO) << "Update [reapply] value=" << update_info.o_new_value;
-    return true;
-  }
-
-  // TODO: complete updates
-  return false;
-}
-
-std::string EncryptedStorage::encrypt_key(const Key &key) const {
-  td::string res(32, '\0');
-  auto iv = secret_for_key_.as_slice().substr(32, 32).str();
-  td::aes_cbc_encrypt(secret_for_key_.as_slice().substr(0, 32), iv, key.public_key.as_slice(), res);
-  return res;
-}
-
-td::Result<Key> EncryptedStorage::decrypt_key(td::Slice raw_key) const {
-  if (raw_key.size() != 32) {
-    return td::Status::Error("Invalid key length");
-  }
-  td::UInt256 key;
-  auto iv = secret_for_key_.as_slice().substr(32, 32).str();
-  td::aes_cbc_decrypt(secret_for_key_.as_slice().substr(0, 32), iv, raw_key, key.as_mutable_slice());
-  return Key{key};
-}
-
-std::string EncryptedStorage::encrypt_value(const Value &value) const {
-  return MessageEncryption::encrypt_data(serialize_boxed(*to_tl(value)), secret_for_value_).as_slice().str();
-}
-
-td::Result<std::optional<Value>> EncryptedStorage::decrypt_value(td::Slice raw_value) const {
-  if (raw_value.empty()) {
-    return std::nullopt;
-  }
-  TRY_RESULT(decrypted_raw_value, MessageEncryption::decrypt_data(raw_value, secret_for_value_));
-  td::TlParser parser(decrypted_raw_value);
-  auto value_tl =
-      td::e2e_api::move_object_as<td::e2e_api::e2e_valueContactByPublicKey>(td::e2e_api::e2e_Value::fetch(parser));
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-  return from_tl(*value_tl);
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/EncryptedStorage.h b/third-party/td/td/tde2e/td/e2e/EncryptedStorage.h
deleted file mode 100644
index 3c950f6045..0000000000
--- a/third-party/td/td/tde2e/td/e2e/EncryptedStorage.h
+++ /dev/null
@@ -1,410 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/Blockchain.h"
-#include "td/e2e/Container.h"
-#include "td/e2e/e2e_api.h"
-#include "td/e2e/MessageEncryption.h"
-#include "td/e2e/utils.h"
-
-#include "td/telegram/e2e_api.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/UInt.h"
-
-#include <map>
-#include <optional>
-#include <utility>
-
-namespace td {
-
-template <class T>
-StringBuilder &operator<<(td::StringBuilder &sb, std::optional<T> const &opt) {
-  if (opt.has_value()) {
-    sb << "Some{" << opt.value() << "}";
-  } else {
-    sb << "None";
-  }
-  return sb;
-}
-
-}  // namespace td
-
-namespace tde2e_core {
-namespace api = tde2e_api;
-struct Update {
-  std::optional<api::Entry<api::UserId>> o_user_id;
-  std::optional<api::Entry<api::Name>> o_name;
-  std::optional<api::Entry<api::PhoneNumber>> o_phone_number;
-
-  std::optional<api::Entry<api::EmojiNonces>> o_emoji_nonces;
-  std::optional<api::Entry<api::ContactState>> o_contact_state;
-};
-
-inline api::Int256 from_td(const td::UInt256 &value) {
-  api::Int256 result;
-  td::MutableSlice(result.data(), result.size()).copy_from(value.as_slice());
-  return result;
-}
-
-inline api::Int512 from_td(const td::UInt512 &value) {
-  api::Int512 result;
-  td::MutableSlice(result.data(), result.size()).copy_from(value.as_slice());
-  return result;
-}
-}  // namespace tde2e_core
-
-namespace tde2e_api {
-using Update = tde2e_core::Update;
-
-inline td::UInt256 to_td(const Int256 &value) {
-  td::UInt256 result;
-  result.as_mutable_slice().copy_from(td::Slice(value.data(), value.size()));
-  return result;
-}
-inline td::UInt512 to_td(const Int512 &value) {
-  td::UInt512 result;
-  result.as_mutable_slice().copy_from(td::Slice(value.data(), value.size()));
-  return result;
-}
-inline auto to_tl(const UserId &entry) {
-  return td::e2e_api::make_object<td::e2e_api::e2e_personalUserId>(entry);
-}
-inline auto to_tl(const Name &entry) {
-  return td::e2e_api::make_object<td::e2e_api::e2e_personalName>(entry.first_name, entry.last_name);
-}
-inline auto to_tl(const PhoneNumber &entry) {
-  return td::e2e_api::make_object<td::e2e_api::e2e_personalPhoneNumber>(entry.phone_number);
-}
-
-inline auto to_tl(const EmojiNonces &entry) {
-  using TlType = td::e2e_api::e2e_personalEmojiNonces;
-  td::int32 flags = TlType::SELF_NONCE_MASK * static_cast<bool>(entry.self_nonce) +
-                    TlType::CONTACT_NONCE_MASK * static_cast<bool>(entry.contact_nonce) +
-                    TlType::CONTACT_NONCE_MASK * static_cast<bool>(entry.contact_nonce_hash);
-  return td::e2e_api::make_object<TlType>(flags, to_td(entry.self_nonce.value_or(Int256{})),
-                                          to_td(entry.contact_nonce_hash.value_or(Int256{})),
-                                          to_td(entry.contact_nonce.value_or(Int256{})));
-}
-
-inline auto to_tl(const ContactState &entry) {
-  // TODO
-  return td::e2e_api::make_object<td::e2e_api::e2e_personalContactState>(0, false);
-}
-
-template <class T>
-auto to_tl(const Entry<T> &entry) {
-  return td::e2e_api::make_object<td::e2e_api::e2e_personalOnClient>(entry.timestamp, to_tl(entry.value));
-}
-
-template <class T>
-auto to_tl(const SignedEntry<T> &entry) {
-  return td::e2e_api::make_object<td::e2e_api::e2e_personalOnServer>(to_td(entry.signature), entry.timestamp,
-                                                                     to_tl(entry.value));
-}
-inline auto to_tl(const Contact &contact) {
-  std::vector<td::e2e_api::object_ptr<td::e2e_api::e2e_personalOnClient>> entries;
-  if (contact.o_user_id) {
-    entries.push_back(to_tl(*contact.o_user_id));
-  }
-  if (contact.o_name) {
-    entries.push_back(to_tl(*contact.o_name));
-  }
-  if (contact.o_phone_number) {
-    entries.push_back(to_tl(*contact.o_phone_number));
-  }
-  entries.push_back(to_tl(contact.emoji_nonces));
-  entries.push_back(to_tl(contact.contact_state));
-  return td::e2e_api::make_object<td::e2e_api::e2e_valueContactByPublicKey>(std::move(entries));
-}
-
-inline Update to_update(Entry<UserId> user_id) {
-  Update result;
-  result.o_user_id = std::move(user_id);
-  return result;
-}
-inline Update to_update(Entry<Name> name) {
-  Update result;
-  result.o_name = std::move(name);
-  return result;
-}
-inline Update to_update(Entry<PhoneNumber> phone_number) {
-  Update result;
-  result.o_phone_number = std::move(phone_number);
-  return result;
-}
-inline Update to_update(Entry<EmojiNonces> emoji) {
-  Update result;
-  result.o_emoji_nonces = std::move(emoji);
-  return result;
-}
-inline Update to_update(Entry<ContactState> contact_state) {
-  Update result;
-  result.o_contact_state = std::move(contact_state);
-  return result;
-}
-
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const Name &entry) {
-  return sb << "Name{" << entry.first_name << " " << entry.last_name << "}";
-}
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const PhoneNumber &entry) {
-  return sb << "PhoneNumber{" << entry.phone_number << "}";
-}
-inline bool operator==(const Name &lhs, const Name &rhs) {
-  return lhs.first_name == rhs.first_name && lhs.last_name == rhs.last_name;
-}
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const EmojiNonces &entry) {
-  sb << "EmojiNonces{";
-  bool f = false;
-  if (entry.self_nonce) {
-    sb << "SelfNonce";
-    f = true;
-  }
-  if (entry.contact_nonce_hash) {
-    if (f) {
-      sb << "|";
-    }
-    sb << "TheirNonceHash";
-    f = true;
-  }
-  if (entry.contact_nonce) {
-    if (f) {
-      sb << "|";
-    }
-    sb << "ContactNonce";
-    f = true;
-  }
-  return sb << "}";
-}
-inline bool operator==(const PhoneNumber &lhs, const PhoneNumber &rhs) {
-  return lhs.phone_number == rhs.phone_number;
-}
-
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const ContactState &entry) {
-  switch (entry.state) {
-    case ContactState::Unknown:
-      return sb << "Unknown";
-    case ContactState::Contact:
-      return sb << "Contact";
-    case ContactState::NotContact:
-      return sb << "NotContact";
-    default:
-      UNREACHABLE();
-  }
-}
-inline bool operator==(const ContactState &lhs, const ContactState &rhs) {
-  return lhs.state == rhs.state;
-}
-
-template <class S>
-td::StringBuilder &operator<<(td::StringBuilder &sb, const Entry<S> &entry) {
-  sb << entry.value << "\t";
-  switch (entry.source) {
-    case Entry<S>::Self:
-      sb << "[Self]";
-      break;
-
-    case Entry<S>::Server:
-      sb << "[Server]";
-      break;
-
-    case Entry<S>::Contact:
-      sb << "[Contact]";
-      break;
-    default:
-      UNREACHABLE();
-  }
-  sb << "\tts=" << entry.timestamp;
-  return sb;
-}
-template <class T>
-bool operator==(const Entry<T> &lhs, const Entry<T> &rhs) {
-  return true;
-  //TODO(now)
-  //  return lhs.source == rhs.source && lhs.value == rhs.value && lhs.timestamp == rhs.timestamp;
-}
-
-template <class S>
-td::StringBuilder &operator<<(td::StringBuilder &sb, const SignedEntry<S> &entry) {
-  sb << "[Signed]";
-  sb << " ts=" << entry.timestamp;
-  sb << " " << entry.value;
-  return sb;
-}
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const Contact &contact) {
-  sb << "\nContact{";
-  auto p = [&](auto &value) {
-    sb << "\n\t" << value;
-  };
-  auto op = [&](auto &o_value) {
-    if (o_value) {
-      p(*o_value);
-    }
-  };
-  op(contact.o_user_id);
-  op(contact.o_name);
-  op(contact.o_phone_number);
-  p(contact.emoji_nonces);
-  p(contact.contact_state);
-  return sb << "\n}";
-}
-
-inline bool operator==(const Contact &lhs, const Contact &rhs) {
-  return lhs.generation == rhs.generation && lhs.o_name == rhs.o_name && lhs.o_phone_number == rhs.o_phone_number &&
-         lhs.o_user_id == rhs.o_user_id && lhs.public_key == rhs.public_key && lhs.contact_state == rhs.contact_state &&
-         lhs.emoji_nonces == rhs.emoji_nonces;
-}
-}  // namespace tde2e_api
-namespace tde2e_core {
-inline td::StringBuilder &operator<<(td::StringBuilder &sb, const Update &update) {
-  sb << "\nUpdate{";
-  auto p = [&](auto &value) {
-    sb << "\n\t" << value;
-  };
-  auto op = [&](auto &o_value) {
-    if (o_value) {
-      p(*o_value);
-    }
-  };
-  op(update.o_user_id);
-  op(update.o_name);
-  op(update.o_phone_number);
-  op(update.o_emoji_nonces);
-  op(update.o_contact_state);
-  return sb << "\n}\n";
-}
-inline bool operator==(const Update &lhs, const Update &rhs) {
-  return lhs.o_contact_state == rhs.o_contact_state && lhs.o_user_id == rhs.o_user_id &&
-         lhs.o_phone_number == rhs.o_phone_number && lhs.o_emoji_nonces == rhs.o_emoji_nonces &&
-         lhs.o_user_id == rhs.o_user_id;
-}
-
-struct KeyContactByPublicKey {
-  td::UInt256 public_key{};
-
-  KeyContactByPublicKey() = default;
-
-  explicit KeyContactByPublicKey(td::UInt256 public_key) : public_key(public_key) {
-  }
-
-  bool operator<(const KeyContactByPublicKey &other) const {
-    return public_key < other.public_key;
-  }
-
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const KeyContactByPublicKey &key) {
-    return sb << "PubKey{" << td::base64_encode(key.public_key.as_slice()).substr(0, 8) << "}";
-  }
-};
-using Key = KeyContactByPublicKey;
-using Value = api::Contact;
-
-// TODO:
-// - delete value
-struct EncryptedStorage {
-  struct BlockchainState {
-    std::string next_block;
-    std::vector<std::string> need_proofs;
-  };
-  struct KeyValueUpdates {
-    std::vector<std::pair<Key, std::optional<Value>>> updates;
-  };
-  using UpdateId = td::int64;
-
-  static td::Result<EncryptedStorage> create(td::Slice last_block, PrivateKey pk) {
-    auto public_key = pk.to_public_key();
-    auto secret_for_key = MessageEncryption::hmac_sha512(pk.to_secure_string(), "EncryptedStorage::secret_for_key");
-    auto secret_for_value = MessageEncryption::hmac_sha512(pk.to_secure_string(), "EncryptedStorage::secret_for_value");
-    ClientBlockchain blockchain;
-    if (last_block.empty()) {
-      TRY_RESULT_ASSIGN(blockchain, ClientBlockchain::create_empty());
-    } else {
-      TRY_RESULT_ASSIGN(blockchain, ClientBlockchain::create_from_block(last_block, std::move(public_key)));
-    }
-    return EncryptedStorage(std::move(pk), std::move(secret_for_key), std::move(secret_for_value),
-                            std::move(blockchain));
-  }
-
-  EncryptedStorage(PrivateKey pk, td::SecureString secret_for_key, td::SecureString secret_for_value,
-                   ClientBlockchain blockchain)
-      : private_key_(std::move(pk))
-      , secret_for_key_(std::move(secret_for_key))
-      , secret_for_value_(std::move(secret_for_value))
-      , blockchain_(std::move(blockchain)) {
-  }
-
-  template <class T>
-  td::Result<UpdateId> update(Key key, api::SignedEntry<T> signed_entry) {
-    // verify signature
-    TRY_STATUS(verify_signature(PublicKey::from_u256(key.public_key), *to_tl(signed_entry)));
-
-    return update(
-        key, to_update(api::Entry<T>{api::Entry<T>::Contact, signed_entry.timestamp, std::move(signed_entry.value)}));
-  }
-
-  template <class T>
-  static td::Result<api::SignedEntry<T>> sign_entry(const PrivateKey &pk, api::Entry<T> entry) {
-    api::SignedEntry<T> signed_entry;
-    signed_entry.value = std::move(entry.value);
-    TRY_RESULT(signature, sign(pk, *to_tl(signed_entry)));
-    td::MutableSlice(signed_entry.signature.data(), signed_entry.signature.size()).copy_from(signature.to_slice());
-    return signed_entry;
-  }
-
-  td::Result<std::optional<Value>> get(Key key, bool optimistic = false);
-
-  // current blockchain height
-  td::int64 get_height() const;
-  // one must only apply blocks from server (TODO: signature from server)
-  td::Result<KeyValueUpdates> apply_block(td::Slice block);
-
-  // proof must be from block of current height
-  // after proof is applied
-  // Keys are used as a hint
-  td::Status add_proof(td::Slice proof, td::Span<std::string> keys);
-
-  BlockchainState get_blockchain_state();
-  KeyValueUpdates pull_updates();
-
- private:
-  struct UpdateInfo {
-    std::vector<UpdateId> update_ids;
-    Update update;
-    std::optional<Value> o_new_value;
-  };
-
-  std::map<Key, UpdateInfo> updates_;
-  std::map<Key, std::optional<Value>> partial_key_value_;
-  UpdateId next_update_id_{0};
-
-  PrivateKey private_key_;
-  td::SecureString secret_for_key_;
-  td::SecureString secret_for_value_;
-
-  ClientBlockchain blockchain_;
-
-  KeyValueUpdates pending_key_value_updates_;
-
-  td::Result<UpdateId> update(Key key, Update update);
-
-  td::Result<std::pair<Key, std::optional<Value>>> parse(td::Slice raw_key, td::Slice raw_value);
-  void sync_entry(Key key, std::optional<Value> value, bool rewrite = false);
-  bool reapply_update(UpdateInfo &update_info, const std::optional<Value> &value);
-
-  std::string encrypt_key(const Key &key) const;
-  std::string encrypt_value(const Value &value) const;
-  td::Result<Key> decrypt_key(td::Slice raw_key) const;
-  td::Result<std::optional<Value>> decrypt_value(td::Slice raw_value) const;
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Encryption.md b/third-party/td/td/tde2e/td/e2e/Encryption.md
deleted file mode 100644
index 78217b9f8c..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Encryption.md
+++ /dev/null
@@ -1,178 +0,0 @@
-# Encryption in Secret Group Calls
-
-A group call consists of three primary components:
-
-1. **Blockchain** shared among all group members. This serves as a synchronization point for all group changes and generates verification codes for MitM protection. Its hash incorporates the entire history of call changes, including the shared key hash. Each block contains call participant changes and new shared keys individually encrypted for each participant.
-
-2. **Encryption protocol** for network packets. Designed for efficiency, this protocol encrypts at the video and audio frame level rather than the network level. Each packet is signed to enable authorship verification. Similar encryption primitives secure the shared key for each participant.
-
-3. **Emoji generation protocol**. Direct generation of emojis from the blockchain hash is vulnerable to brute-force attacks by block creators. To mitigate this, we implement a two-phase protocol: first, each party commits to a value by publishing its hash; second, each party reveals their value. The combined hash of all values introduces unpredictable randomness into the blockchain hash.
-
-Let's examine each component in detail:
-
-## Blockchain
-
-The blockchain functions as a distributed ledger for managing group call state. Each block contains a participant list and new shared keys individually encrypted for all participants.
-
-The hash of the most recent block generates **verification words**.
-
-The hash of the most recent block, combined with unpredictable random values, generates **verification emojis**.
-
-For improved user experience, any person can currently join a call with server permission, without requiring explicit confirmation from existing participants.
-While the blockchain supports an explicit confirmation mode, we currently use `external_permissions` in the blockchain state to allow self-addition to groups.
-
-Call security in this scheme depends on emoji verification by each participant. This approach could be enhanced in future versions with persistent user identities.
-
-### Typical Workflow
-
-#### Joining a Call
-
-To join a call, a user must:
-- Request the latest blockchain block from the server
-- Create a new block containing updated state that includes themselves and a new shared key encrypted for all participants (including themselves)
-- Submit this block to the server
-
-The server validates that the block only adds the new user and attempts to apply it to the blockchain:
-
-- Upon success, all participants receive the new block, update their blockchain, and implement the new shared key
-- If conflicts exist (such as another block already applied at the same height), the operation fails
-
-#### Removing a Participant from the Call
-
-When a participant becomes inactive, they must be removed from the call. This process follows a similar pattern to joining but is initiated by any active participant.
-
-For comprehensive details, refer to the [Blockchain documentation](Blockchain.md).
-
-#### Security
-- Clients must only apply blocks as received from the server, which prevents blockchain forks when the server operates correctly
-- The blockchain state must be explicitly displayed in the UI, even when the server withholds information about certain participants
-- MitM protection relies on either verification words (currently not used in UI) or emojis; all participants must verify they see identical emojis
-- If the server delivers different blocks to different participants, the resulting fork hashes will permanently differ
-- The creator of a new key must be included as a participant in the block since they generate the shared key
-- Notably, participants cannot remove themselves from a group, as this would require generating a new shared key for the remaining participants
-- Active participants should remove inactive users from the group, particularly those blocking the emoji generation process
-- In the current implementation without explicit confirmations, signatures provide limited security value since anyone with a key can join a call; however, they enhance protocol robustness
-
-
-## Encryption
-
-### Core Primitives
-
-Our encryption system utilizes several primitives similar to MTProto 2.0. The key functions include:
-
-#### encrypt_data(payload, secret) - encrypts payload with shared secret
-
-1) padding_size = ((16 + payload.size + 15) & -16) - payload.size
-2) padding = random_bytes(padding_size) with padding[0] = padding_size
-3) padded_data = padding || payload
-4) large_secret = KDF(secret, "tde2e_encrypt_data")
-5) encrypt_secret = large_secret[0:32]
-6) hmac_secret = large_secret[32:64]
-7) msg_id = HMAC-SHA512(hmac_secret, padded_data)[0:16]
-8) (aes_key, aes_iv) = HMAC-SHA512(encrypt_secret, msg_id)[0:48]
-9) encrypted = aes_cbc(aes_key, aes_iv, padded_data)
-10) result = msg_id || encrypted
-
-#### encrypt_header(header, encrypted_msg, secret) - encrypts 32-byte header
-
-1) msg_id = encrypted_msg[0:16]  // First 16 bytes
-2) encrypt_secret = KDF(secret, "tde2e_encrypt_header")[0:32]
-3) (aes_key, aes_iv) = HMAC-SHA512(encrypt_secret, msg_id)[0:48]
-4) encrypted_header = aes_cbc(aes_key, aes_iv, header)
-
-Note: KDF refers to HMAC-SHA512 throughout this document
-
-#### Security
-- Verification of `msg_id` during decryption is essential before accepting any payload
-- Replay protection is implemented at a higher protocol level
-
-### Packet Encryption
-
-The encryption process for video and audio packets follows this sequence:
-
-#### encrypt_packet(payload, active_epochs, user_id, channel_id, seqno, private_key) - encrypts a packet
-
-First, generate header_a describing the epochs (blockchain heights) in use:
-1) epoch_id[i] = active_epochs[i].epoch (4 bytes)
-2) header_a = active_epochs.size (4 bytes) || epoch_id[0] || epoch_id[1] || ...
-
-Next, encrypt the payload using a one-time key. The signature in the payload incorporates the unencrypted header:
-1) one_time_key = random(32)
-2) packet_payload = channel_id (4 bytes) || seqno (4 bytes) || payload
-3) to_sign = HMAC-SHA512(header_a, packet_payload)
-4) signature = sign(to_sign, private_key) // 64 bytes
-5) signed_payload = packet_payload || signature
-6) encrypted_payload = encrypt_data(signed_payload, one_time_key)
-
-Finally, encrypt the one-time key using the shared secret from each active epoch:
-1) encrypted_key[i] = encrypt_header(one_time_key, encrypted_payload, active_epochs[i].shared_key) (32 bytes)
-2) header_b = encrypted_key[0] || encrypted_key[1] || ...
-
-The complete packet format is: header_a || header_b || encrypted_payload
-
-#### Security
-- The seqno value is unique for each (public key, channel_id) pair, providing protection against replay attacks; receivers should maintain records of recent seqno values and reject packets with known or outdated seqno values
-- During decryption, the public key must be retrieved from the blockchain state using the externally provided user_id; this public key verifies the signature
-
-### Shared Key Encryption
-
-When modifying group state or shared key, the new shared key is encrypted for each participant using their respective public keys from the blockchain state:
-
-1. Generate new cryptographic material:
-   - `group_shared_key = random(32 bytes)` - the new shared key for the call
-   - `one_time_secret = random(32 bytes)` - secret used for encryption
-   - `e_private_key, e_public_key = generate_private_key()` - key pair used to encrypt the one_time_secret
-
-2. Encrypt the group shared key:
-   - `encrypted_group_shared_key = encrypt_data(group_shared_key, one_time_secret)`
-
-3. For each participant in the group:
-   - `shared_key = compute_shared_secret(e_private_key, participant.public_key)`
-   - `encrypted_header = encrypt_header(one_time_secret, encrypted_group_shared_key, shared_key)`
-
-The `e_public_key`, `encrypted_group_shared_key`, and `encrypted_header` for each participant are recorded in the blockchain state.
-
-#### Security
-- We cannot guarantee that every participant will successfully decrypt the key
-- However, all participants who can decrypt will obtain the identical `shared_secret`
-- Participants unable to decrypt the key must exit the call immediately, and specifically must not participate in the emoji generation process
-
-
-## Emoji Generation
-
-The emoji hash generation employs a two-phase commit-reveal protocol to prevent block creators from performing brute-force attacks.
-
-#### Protocol Workflow
-
-1. Initial Setup:
-   - Each participant generates a random 32-byte nonce
-   - `nonce_hash = SHA256(nonce)`
-
-2. Commit Phase:
-   - Each participant broadcasts their `nonce_hash` with a signature
-   - The system waits for all participants to submit commits
-   - Transition to the Reveal phase occurs only after receiving all commits
-
-3. Reveal Phase:
-   - Each participant broadcasts their original `nonce` with signature
-   - The system verifies that `SHA256(revealed_nonce) == committed_hash`
-   - The process waits for all participants to complete the reveal step
-
-4. Final Hash Generation:
-   - All revealed nonces are concatenated in order
-   - `emoji_hash = HMAC-SHA512(concatenated_sorted_nonces, blockchain_hash)`
-
-
-The TL schema for this broadcast mechanism is:
-```
-e2e.chain.groupBroadcastNonceCommit signature:int512 public_key:int256 chain_height:int32 chain_hash:int256 nonce_hash:int256 = e2e.chain.GroupBroadcast;
-e2e.chain.groupBroadcastNonceReveal signature:int512 public_key:int256 chain_height:int32 chain_hash:int256 nonce:int256 = e2e.chain.GroupBroadcast;
-```
-
-The signature applies to the TL serialization of the same object with a zeroed signature field.
-
-#### Security
-- The resulting `emoji_hash` remains completely unpredictable for all protocol participants
-- For simplicity and protection against bugs, participants should only apply messages (including those they created themselves) when received from the server; this approach ensures that when any participant sees a packet, all participants see the packet
-- Consequently, emojis won't be displayed before all clients with reasonable internet connections can also view them
-- The two-phase commit-reveal protocol prevents any participant from biasing the emoji selection toward a specific pattern
diff --git a/third-party/td/td/tde2e/td/e2e/Keys.cpp b/third-party/td/td/tde2e/td/e2e/Keys.cpp
deleted file mode 100644
index 6d5f6186ef..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Keys.cpp
+++ /dev/null
@@ -1,167 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/Keys.h"
-
-#include "td/e2e/MessageEncryption.h"
-
-#include "td/utils/Ed25519.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace tde2e_core {
-
-struct PublicKeyRaw {
-  td::Ed25519::PublicKey public_key;
-};
-struct PrivateKeyRaw {
-  PublicKeyRaw public_key;
-  td::Ed25519::PrivateKey private_key;
-};
-struct PrivateKeyWithMnemonicRaw {
-  std::vector<td::SecureString> mnemonic;
-  PrivateKeyRaw key_pair;
-};
-
-Signature Signature::from_u512(const td::UInt512 &signature) {
-  return Signature{signature};
-}
-td::UInt512 Signature::to_u512() const {
-  return signature_;
-}
-td::Result<Signature> Signature::from_slice(const td::Slice &slice) {
-  td::UInt512 signature;
-  if (slice.size() != 64) {
-    return td::Status::Error(PSLICE() << "Invalid signature length: " << slice.size());
-  }
-  signature.as_mutable_slice().copy_from(slice);
-  return Signature{signature};
-}
-td::Slice Signature::to_slice() const {
-  return signature_.as_slice();
-}
-
-auto empty_public_key() {
-  static auto pk = PublicKey::from_u256({});
-  return pk;
-}
-PublicKey::PublicKey() : raw_(empty_public_key().raw_) {
-}
-PublicKey::PublicKey(std::shared_ptr<const PublicKeyRaw> public_key) : raw_(std::move(public_key)) {
-  CHECK(raw_);
-}
-td::Result<PublicKey> PublicKey::from_slice(td::Slice slice) {
-  if (slice.size() != td::Ed25519::PublicKey::LENGTH) {
-    return td::Status::Error("Invalid length of public key");
-  }
-  PublicKeyRaw public_key_raw{td::Ed25519::PublicKey(td::SecureString(slice))};
-  return PublicKey(std::make_shared<PublicKeyRaw>(std::move(public_key_raw)));
-}
-PublicKey PublicKey::from_u256(const td::UInt256 &public_key) {
-  PublicKeyRaw public_key_raw{td::Ed25519::PublicKey(td::SecureString(public_key.as_slice()))};
-  return PublicKey(std::make_shared<PublicKeyRaw>(std::move(public_key_raw)));
-}
-td::UInt256 PublicKey::to_u256() const {
-  CHECK(raw_);
-  td::UInt256 result;
-  result.as_mutable_slice().copy_from(raw_->public_key.as_octet_string());
-  return result;
-}
-td::Status PublicKey::verify(td::Slice data, const Signature &signature) const {
-  CHECK(raw_);
-  return raw_->public_key.verify_signature(data, signature.to_slice());
-}
-td::SecureString PublicKey::to_secure_string() const {
-  return raw_->public_key.as_octet_string();
-}
-bool PublicKey::operator==(const PublicKey &other) const {
-  return to_u256() == other.to_u256();
-}
-bool PublicKey::operator!=(const PublicKey &other) const {
-  return !(*this == other);
-}
-bool PublicKey::operator<(const PublicKey &other) const {
-  return to_u256() < other.to_u256();
-}
-auto empty_private_key() {
-  static auto pk = PrivateKey::from_slice(std::string(32, 1)).move_as_ok();
-  return pk;
-}
-PrivateKey::PrivateKey() : raw_(empty_private_key().raw_) {
-}
-PrivateKey::PrivateKey(std::shared_ptr<const PrivateKeyRaw> key_pair) : raw_(std::move(key_pair)) {
-  CHECK(raw_);
-}
-td::Result<PrivateKey> PrivateKey::generate() {
-  TRY_RESULT(private_key, td::Ed25519::generate_private_key());
-  TRY_RESULT(public_key, private_key.get_public_key());
-  return std::make_shared<PrivateKeyRaw>(PrivateKeyRaw{{std::move(public_key)}, std::move(private_key)});
-}
-td::Result<PrivateKey> PrivateKey::from_slice(const td::Slice &slice) {
-  if (slice.size() != td::Ed25519::PublicKey::LENGTH) {
-    return td::Status::Error("Invalid private key length");
-  }
-  auto private_key = td::Ed25519::PrivateKey(td::SecureString(slice));
-  TRY_RESULT(public_key, private_key.get_public_key());
-  return std::make_shared<PrivateKeyRaw>(PrivateKeyRaw{{std::move(public_key)}, std::move(private_key)});
-}
-td::Result<td::SecureString> PrivateKey::compute_shared_secret(const PublicKey &public_key) const {
-  TRY_RESULT(x25519_shared_secret, td::Ed25519::compute_shared_secret(public_key.raw().public_key, raw_->private_key));
-  return td::SecureString(
-      MessageEncryption::hmac_sha512("tde2e_shared_secret", x25519_shared_secret).as_slice().substr(0, 32));
-}
-td::Result<Signature> PrivateKey::sign(const td::Slice &data) const {
-  CHECK(raw_);
-  TRY_RESULT(signature, raw_->private_key.sign(data));
-  return Signature::from_slice(signature);
-}
-PublicKey PrivateKey::to_public_key() const {
-  CHECK(raw_);
-  return PublicKey(std::shared_ptr<const PublicKeyRaw>(raw_, &raw_->public_key));
-}
-td::SecureString PrivateKey::to_secure_string() const {
-  return raw_->private_key.as_octet_string();
-}
-PrivateKeyWithMnemonic::PrivateKeyWithMnemonic(std::shared_ptr<const PrivateKeyWithMnemonicRaw> raw)
-    : raw_(std::move(raw)) {
-  CHECK(raw_);
-}
-PrivateKeyWithMnemonic PrivateKeyWithMnemonic::from_private_key(const PrivateKey &private_key,
-                                                                std::vector<td::SecureString> words) {
-  return PrivateKeyWithMnemonic(std::make_shared<PrivateKeyWithMnemonicRaw>(PrivateKeyWithMnemonicRaw{
-      std::move(words),
-      PrivateKeyRaw{{td::Ed25519::PublicKey(td::SecureString(private_key.to_public_key().to_u256().as_slice()))},
-                    td::Ed25519::PrivateKey(private_key.to_secure_string())}}));
-}
-PrivateKey PrivateKeyWithMnemonic::to_private_key() const {
-  return PrivateKey(std::shared_ptr<const PrivateKeyRaw>(raw_, &raw_->key_pair));
-}
-td::Span<td::SecureString> PrivateKeyWithMnemonic::words() const {
-  CHECK(raw_);
-  return raw_->mnemonic;
-}
-PublicKey PrivateKeyWithMnemonic::to_public_key() const {
-  return to_private_key().to_public_key();
-}
-td::Result<Signature> PrivateKeyWithMnemonic::sign(const td::Slice &data) const {
-  return to_private_key().sign(data);
-}
-td::StringBuilder &operator<<(td::StringBuilder &sb, const PrivateKeyWithMnemonic &key_pair_with_mnemonic) {
-  return sb << "EdPrivateKey(pub="
-            << td::hex_encode(key_pair_with_mnemonic.to_public_key().to_u256().as_slice().substr(0, 8)) << "...)";
-}
-td::StringBuilder &operator<<(td::StringBuilder &sb, const PrivateKey &key_pair) {
-  return sb << "EdPrivateKey(pub=" << td::hex_encode(key_pair.to_public_key().to_u256().as_slice().substr(0, 8))
-            << "...)";
-}
-td::StringBuilder &operator<<(td::StringBuilder &sb, const PublicKey &public_key) {
-  return sb << "EdPublicKey(" << td::hex_encode(public_key.to_u256().as_slice().substr(0, 8)) << "...)";
-}
-td::StringBuilder &operator<<(td::StringBuilder &sb, const Signature &signature) {
-  return sb << "Signature(" << td::hex_encode(signature.signature_.as_slice().substr(0, 8)) << "...)";
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Keys.h b/third-party/td/td/tde2e/td/e2e/Keys.h
deleted file mode 100644
index ca864e74c0..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Keys.h
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/UInt.h"
-
-#include <memory>
-
-namespace tde2e_core {
-
-// new shiny public/private key classes
-struct PublicKeyRaw;
-struct PrivateKeyRaw;
-struct PrivateKeyWithMnemonicRaw;
-
-class Signature {
- public:
-  Signature() = default;
-  explicit Signature(td::UInt512 signature) : signature_(signature) {
-  }
-  static Signature from_u512(const td::UInt512 &signature);
-  td::UInt512 to_u512() const;
-  static td::Result<Signature> from_slice(const td::Slice &slice);
-  td::Slice to_slice() const;
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const Signature &signature);
-
- private:
-  td::UInt512 signature_{};
-};
-
-class PublicKey {
- public:
-  PublicKey();
-  explicit PublicKey(std::shared_ptr<const PublicKeyRaw> public_key);
-  static td::Result<PublicKey> from_slice(td::Slice);
-  static PublicKey from_u256(const td::UInt256 &public_key);
-  td::UInt256 to_u256() const;
-  td::Status verify(td::Slice data, const Signature &signature) const;
-  td::SecureString to_secure_string() const;
-  bool operator==(const PublicKey &other) const;
-  bool operator!=(const PublicKey &other) const;
-  bool operator<(const PublicKey &other) const;
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const PublicKey &public_key);
-
-  const PublicKeyRaw &raw() const {
-    CHECK(raw_);
-    return *raw_;
-  }
-
- private:
-  std::shared_ptr<const PublicKeyRaw> raw_;
-};
-
-class PrivateKey {
- public:
-  PrivateKey();
-  explicit PrivateKey(std::shared_ptr<const PrivateKeyRaw> key_pair);
-  explicit operator bool() const noexcept {
-    return static_cast<bool>(raw_);
-  }
-  static td::Result<PrivateKey> generate();
-
-  static td::Result<PrivateKey> from_slice(const td::Slice &slice);
-  td::Result<td::SecureString> compute_shared_secret(const PublicKey &public_key) const;
-  td::Result<Signature> sign(const td::Slice &data) const;
-  PublicKey to_public_key() const;
-  td::SecureString to_secure_string() const;
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const PrivateKey &key_pair);
-  const PrivateKeyRaw &raw() const {
-    CHECK(raw_);
-    return *raw_;
-  }
-
- private:
-  std::shared_ptr<const PrivateKeyRaw> raw_;
-};
-
-class PrivateKeyWithMnemonic {
- public:
-  explicit PrivateKeyWithMnemonic(std::shared_ptr<const PrivateKeyWithMnemonicRaw> raw);
-  static PrivateKeyWithMnemonic from_private_key(const PrivateKey &private_key,
-                                                 std::vector<td::SecureString> words = {});
-  PrivateKey to_private_key() const;
-  td::Span<td::SecureString> words() const;
-
-  PublicKey to_public_key() const;
-  td::Result<Signature> sign(const td::Slice &data) const;
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const PrivateKeyWithMnemonic &key_pair_with_mnemonic);
-
- private:
-  std::shared_ptr<const PrivateKeyWithMnemonicRaw> raw_;
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/MessageEncryption.cpp b/third-party/td/td/tde2e/td/e2e/MessageEncryption.cpp
deleted file mode 100644
index a131988b36..0000000000
--- a/third-party/td/td/tde2e/td/e2e/MessageEncryption.cpp
+++ /dev/null
@@ -1,168 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/MessageEncryption.h"
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/SharedSlice.h"
-
-#include <utility>
-
-namespace tde2e_core {
-
-namespace {
-constexpr size_t MIN_PADDING = 16;
-}  // namespace
-
-td::AesCbcState MessageEncryption::calc_aes_cbc_state_from_hash(td::Slice hash) {
-  CHECK(hash.size() >= 48);
-  td::SecureString key(32);
-  key.as_mutable_slice().copy_from(hash.substr(0, 32));
-  td::SecureString iv(16);
-  iv.as_mutable_slice().copy_from(hash.substr(32, 16));
-  return td::AesCbcState{key, iv};
-}
-
-td::SecureString MessageEncryption::gen_random_prefix(td::int64 data_size, td::int64 min_padding) {
-  td::SecureString buff(
-      td::narrow_cast<size_t>(((min_padding + 15 + data_size) & ~static_cast<td::int64>(15)) - data_size), '\0');
-  td::Random::secure_bytes(buff.as_mutable_slice());
-  buff.as_mutable_slice().ubegin()[0] = td::narrow_cast<td::uint8>(buff.size());
-  CHECK((buff.size() + data_size) % 16 == 0);
-  return buff;
-}
-
-td::SecureString MessageEncryption::gen_deterministic_prefix(td::int64 data_size, td::int64 min_padding) {
-  td::SecureString buff(
-      td::narrow_cast<size_t>(((min_padding + 15 + data_size) & ~static_cast<td::int64>(15)) - data_size), '\0');
-  buff.as_mutable_slice().ubegin()[0] = td::narrow_cast<td::uint8>(buff.size());
-  CHECK((buff.size() + data_size) % 16 == 0);
-  return buff;
-}
-
-td::SecureString MessageEncryption::kdf(td::Slice secret, td::Slice password, int iterations) {
-  td::SecureString new_secret(64);
-  pbkdf2_sha512(secret, password, iterations, new_secret.as_mutable_slice());
-  return new_secret;
-}
-
-td::SecureString MessageEncryption::encrypt_data_with_prefix(td::Slice data, td::Slice secret) {
-  CHECK(data.size() % 16 == 0);
-  auto large_secret = kdf_expand(secret, "tde2e_encrypt_data");
-  auto encrypt_secret = large_secret.as_slice().substr(0, 32);
-  auto hmac_secret = large_secret.as_mutable_slice().substr(32, 32);
-
-  auto large_msg_id = hmac_sha512(hmac_secret, data);
-  auto msg_id = large_msg_id.as_slice().substr(0, 16);
-
-  td::SecureString res_buf(data.size() + 16, '\0');
-  auto res = res_buf.as_mutable_slice();
-  res.copy_from(msg_id);
-
-  auto cbc_state = calc_aes_cbc_state_from_hash(hmac_sha512(encrypt_secret, msg_id));
-  cbc_state.encrypt(data, res.substr(16));
-
-  return res_buf;
-}
-td::SecureString MessageEncryption::kdf_expand(td::Slice random_secret, td::Slice info) {
-  return hmac_sha512(random_secret, info);
-}
-
-td::SecureString MessageEncryption::encrypt_data(td::Slice data, td::Slice secret) {
-  auto prefix = gen_random_prefix(data.size(), MIN_PADDING);
-  td::SecureString combined(prefix.size() + data.size());
-  combined.as_mutable_slice().copy_from(prefix);
-  combined.as_mutable_slice().substr(prefix.size()).copy_from(data);
-  return encrypt_data_with_prefix(combined.as_slice(), secret);
-}
-
-td::Result<td::SecureString> MessageEncryption::decrypt_data(td::Slice encrypted_data, td::Slice secret) {
-  if (encrypted_data.size() < 16) {
-    return td::Status::Error("Failed to decrypt: encrypted_data is less than 16 bytes");
-  }
-  if (encrypted_data.size() % 16 != 0) {
-    return td::Status::Error("Failed to decrypt: data size is not divisible by 16");
-  }
-
-  auto large_secret = kdf_expand(secret, "tde2e_encrypt_data");
-  auto encrypt_secret = large_secret.as_slice().substr(0, 32);
-  auto hmac_secret = large_secret.as_mutable_slice().substr(32, 32);
-
-  auto msg_id = encrypted_data.substr(0, 16);
-  encrypted_data = encrypted_data.substr(16);
-
-  auto cbc_state = calc_aes_cbc_state_from_hash(hmac_sha512(encrypt_secret, msg_id));
-  td::SecureString decrypted_data(encrypted_data.size(), '\0');
-  cbc_state.decrypt(encrypted_data, decrypted_data.as_mutable_slice());
-
-  auto expected_large_msg_id = hmac_sha512(hmac_secret, decrypted_data);
-  auto expected_msg_id = expected_large_msg_id.as_slice().substr(0, 16);
-
-  // check hash
-  int is_mac_bad = 0;
-  for (size_t i = 0; i < 16; i++) {
-    is_mac_bad |= expected_msg_id[i] ^ msg_id[i];
-  }
-  if (is_mac_bad != 0) {
-    return td::Status::Error("Failed to decrypt: msg_id mismatch");
-  }
-
-  auto prefix_size = static_cast<td::uint8>(decrypted_data[0]);
-  if (prefix_size > decrypted_data.size() || prefix_size < MIN_PADDING) {
-    return td::Status::Error("Failed to decrypt: invalid prefix size");
-  }
-
-  return td::SecureString(decrypted_data.as_slice().substr(prefix_size));
-}
-
-td::SecureString MessageEncryption::hmac_sha512(td::Slice key, td::Slice message) {
-  td::SecureString res(64, 0);
-  td::hmac_sha512(key, message, res.as_mutable_slice());
-  return res;
-}
-
-td::Result<td::SecureString> MessageEncryption::encrypt_header(td::Slice decrypted_header, td::Slice encrypted_message,
-                                                               td::Slice secret) {
-  if (encrypted_message.size() < 16) {
-    return td::Status::Error("Failed to encrypt header: encrypted_message is too small");
-  }
-  if (decrypted_header.size() != 32) {
-    return td::Status::Error("Failed to encrypt header: header must be 32 bytes");
-  }
-  auto large_key = kdf_expand(secret, "tde2e_encrypt_header");
-  auto encryption_key = large_key.as_slice().substr(0, 32);
-
-  auto msg_id = encrypted_message.substr(0, 16);
-  auto cbc_state = calc_aes_cbc_state_from_hash(kdf_expand(encryption_key, msg_id));
-
-  td::SecureString encrypted_header(32, 0);
-  cbc_state.encrypt(decrypted_header, encrypted_header.as_mutable_slice());
-  return encrypted_header;
-}
-
-td::Result<td::SecureString> MessageEncryption::decrypt_header(td::Slice encrypted_header, td::Slice encrypted_message,
-                                                               td::Slice secret) {
-  if (encrypted_message.size() < 16) {
-    return td::Status::Error("Failed to decrypt: invalid message size");
-  }
-  if (encrypted_header.size() != 32) {
-    return td::Status::Error("Failed to decrypt: invalid header size");
-  }
-
-  auto large_key = kdf_expand(secret, "tde2e_encrypt_header");
-  auto encryption_key = large_key.as_slice().substr(0, 32);
-
-  auto msg_id = encrypted_message.substr(0, 16);
-  auto cbc_state = calc_aes_cbc_state_from_hash(hmac_sha512(encryption_key, msg_id));
-
-  td::SecureString decrypted_header(32, 0);
-  cbc_state.decrypt(encrypted_header, decrypted_header.as_mutable_slice());
-  return decrypted_header;
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/MessageEncryption.h b/third-party/td/td/tde2e/td/e2e/MessageEncryption.h
deleted file mode 100644
index aac7090d51..0000000000
--- a/third-party/td/td/tde2e/td/e2e/MessageEncryption.h
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/crypto.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace tde2e_core {
-
-class MessageEncryption {
- public:
-  static td::SecureString encrypt_data(td::Slice data, td::Slice secret);
-  static td::Result<td::SecureString> decrypt_data(td::Slice encrypted_data, td::Slice secret);
-  static td::SecureString hmac_sha512(td::Slice key, td::Slice message);
-  static td::SecureString kdf(td::Slice secret, td::Slice password, int iterations);
-  static td::Result<td::SecureString> encrypt_header(td::Slice decrypted_header, td::Slice encrypted_message,
-                                                     td::Slice secret);
-  static td::Result<td::SecureString> decrypt_header(td::Slice encrypted_header, td::Slice encrypted_message,
-                                                     td::Slice secret);
-
- private:
-  static td::AesCbcState calc_aes_cbc_state_from_hash(td::Slice hash);
-  static td::SecureString gen_random_prefix(td::int64 data_size, td::int64 min_padding);
-  static td::SecureString gen_deterministic_prefix(td::int64 data_size, td::int64 min_padding);
-
-  static td::SecureString encrypt_data_with_prefix(td::Slice data, td::Slice secret);
-
-  static td::SecureString kdf_expand(td::Slice random_secret, td::Slice info);
-
-  friend class SimpleEncryptionV2;
-  friend class EncryptionTest;
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Mnemonic.cpp b/third-party/td/td/tde2e/td/e2e/Mnemonic.cpp
deleted file mode 100644
index b1c0cc45bb..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Mnemonic.cpp
+++ /dev/null
@@ -1,264 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/Mnemonic.h"
-
-#include "td/e2e/bip39.h"
-#include "td/e2e/MessageEncryption.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/optional.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Span.h"
-#include "td/utils/Timer.h"
-
-#include <algorithm>
-#include <vector>
-
-namespace tde2e_core {
-
-td::Result<Mnemonic> Mnemonic::create(td::SecureString words, td::SecureString password) {
-  return create_from_normalized(normalize_and_split(std::move(words)), std::move(password));
-}
-td::Result<Mnemonic> Mnemonic::create(std::vector<td::SecureString> words, td::SecureString password) {
-  return create(join(words), std::move(password));
-}
-Mnemonic::Options::Options() = default;
-td::Result<Mnemonic> Mnemonic::create_from_normalized(const std::vector<td::SecureString> &words,
-                                                      td::SecureString password) {
-  auto new_words = normalize_and_split(join(words));
-  if (new_words != words) {
-    return td::Status::Error("Mnemonic string is not normalized");
-  }
-  return Mnemonic(std::move(new_words), std::move(password));
-}
-
-td::SecureString Mnemonic::to_entropy() const {
-  td::SecureString res(64);
-  td::hmac_sha512(join(words_), password_, res.as_mutable_slice());
-  return res;
-}
-
-td::SecureString Mnemonic::to_seed() const {
-  td::SecureString hash(64);
-  td::pbkdf2_sha512(as_slice(to_entropy()), "tde2e default seed", PBKDF_ITERATIONS, hash.as_mutable_slice());
-  return hash;
-}
-
-PrivateKey Mnemonic::to_private_key() const {
-  return PrivateKey::from_slice(to_seed().as_slice().substr(0, 32)).move_as_ok();
-}
-
-bool Mnemonic::is_basic_seed() const {
-  td::SecureString hash(64);
-  td::pbkdf2_sha512(as_slice(to_entropy()), "tde2e seed version", td::max(1, PBKDF_ITERATIONS / 256),
-                    hash.as_mutable_slice());
-  return hash.as_slice()[0] == 0;
-}
-
-bool Mnemonic::is_password_seed() const {
-  td::SecureString hash(64);
-  td::pbkdf2_sha512(as_slice(to_entropy()), "tde2e fast seed version", 1, hash.as_mutable_slice());
-  return hash.as_slice()[0] == 1;
-}
-
-std::vector<td::SecureString> Mnemonic::get_words() const {
-  return td::transform(words_, [](const auto &word) { return word.copy(); });
-}
-td::SecureString Mnemonic::get_words_string() const {
-  CHECK(words_.size() > 0);
-  size_t length = words_.size() - 1;
-  for (auto &word : words_) {
-    length += word.size();
-  }
-  td::SecureString res(length);
-  auto dest = res.as_mutable_slice();
-  bool is_first = true;
-  for (auto &word : words_) {
-    if (!is_first) {
-      dest[0] = ' ';
-      dest.remove_prefix(1);
-    } else {
-      is_first = false;
-    }
-    dest.copy_from(word);
-    dest.remove_prefix(word.size());
-  }
-  return res;
-}
-
-std::vector<td::SecureString> Mnemonic::normalize_and_split(td::SecureString words) {
-  for (auto &c : words.as_mutable_slice()) {
-    if (td::is_alpha(c)) {
-      c = td::to_lower(c);
-    } else {
-      c = ' ';
-    }
-  }
-  auto vec = td::full_split(words.as_slice(), ' ');
-  std::vector<td::SecureString> res;
-  for (auto &s : vec) {
-    if (!s.empty()) {
-      res.emplace_back(s);
-    }
-  }
-  return res;
-}
-
-td::StringBuilder &operator<<(td::StringBuilder &sb, const Mnemonic &mnemonic) {
-  sb << "Mnemonic" << td::format::as_array(mnemonic.words_);
-  if (!mnemonic.password_.empty()) {
-    sb << " with password[" << mnemonic.password_ << "]";
-  }
-  return sb;
-}
-
-Mnemonic::Mnemonic(std::vector<td::SecureString> words, td::SecureString password)
-    : words_(std::move(words)), password_(std::move(password)) {
-}
-td::SecureString Mnemonic::join(td::Span<td::SecureString> words) {
-  size_t res_size = 0;
-  for (size_t i = 0; i < words.size(); i++) {
-    if (i != 0) {
-      res_size++;
-    }
-    res_size += words[i].size();
-  }
-  td::SecureString res(res_size);
-  auto dst = res.as_mutable_slice();
-  for (size_t i = 0; i < words.size(); i++) {
-    if (i != 0) {
-      dst[0] = ' ';
-      dst.remove_prefix(1);
-    }
-    dst.copy_from(words[i].as_slice());
-    dst.remove_prefix(words[i].size());
-  }
-  return res;
-}
-
-td::Span<std::string> Mnemonic::word_hints(td::Slice prefix) {
-  static std::vector<std::string> words = [] {
-    auto bip_words = Mnemonic::normalize_and_split(td::SecureString(bip39_english()));
-    return td::transform(bip_words, [](const auto &word) { return word.as_slice().str(); });
-  }();
-  if (prefix.empty()) {
-    return words;
-  }
-
-  auto p = std::equal_range(words.begin(), words.end(), prefix, [&](td::Slice a, td::Slice b) {
-    return a.truncate(prefix.size()) < b.truncate(prefix.size());
-  });
-
-  return td::Span<std::string>(&*p.first, p.second - p.first);
-}
-
-std::vector<std::string> Mnemonic::generate_verification_words(td::Slice data) {
-  static constexpr size_t VERIFICATION_WORD_COUNT = 24;
-  static constexpr size_t BITS_PER_WORD = 11;
-  static constexpr size_t BIP_WORD_COUNT = 1 << BITS_PER_WORD;
-  static constexpr size_t HASH_SIZE = 64;
-  static_assert(VERIFICATION_WORD_COUNT * BITS_PER_WORD <= HASH_SIZE * 8, "Verification words count is too large");
-
-  static auto bip_words = Mnemonic::normalize_and_split(td::SecureString(bip39_english()));
-  CHECK(bip_words.size() == BIP_WORD_COUNT);
-
-  auto hash = MessageEncryption::hmac_sha512("MnemonicVerificationWords", data);
-  CHECK(hash.size() == HASH_SIZE);
-
-  std::vector<std::string> verification_words;
-
-  std::size_t bit_pos = 0;
-  for (size_t i = 0; i < VERIFICATION_WORD_COUNT; ++i) {
-    td::uint16 index = 0;
-    for (size_t bit = 0; bit < BITS_PER_WORD; ++bit, ++bit_pos) {
-      if ((hash[bit_pos / 8] >> (bit_pos % 8)) & 1) {
-        index |= (1 << bit);
-      }
-    }
-    verification_words.push_back(bip_words.at(index % 2048).as_slice().str());
-  }
-  CHECK(bit_pos <= hash.size() * 8);
-
-  return verification_words;
-}
-
-td::Result<Mnemonic> Mnemonic::create_new(Options options) {
-  td::Timer timer;
-  if (options.words_count == 0) {
-    options.words_count = 24;
-  }
-  if (options.words_count < 8 || options.words_count > 48) {
-    return td::Status::Error(PSLICE() << "Invalid words count(" << options.words_count
-                                      << ") requested for mnemonic creation");
-  }
-  td::int32 max_iterations = 256 * 20;
-  if (!options.password.empty()) {
-    max_iterations *= 256;
-  }
-
-  td::Random::add_seed(options.entropy.as_slice());
-  SCOPE_EXIT {
-    td::Random::secure_cleanup();
-  };
-
-  auto bip_words = Mnemonic::normalize_and_split(td::SecureString(bip39_english()));
-  CHECK(bip_words.size() == 2048);
-
-  int A = 0, B = 0, C = 0;
-  for (int iteration = 0; iteration < max_iterations; iteration++) {
-    std::vector<td::SecureString> words;
-    td::SecureString rnd((options.words_count * 11 + 7) / 8);
-    td::Random::secure_bytes(rnd.as_mutable_slice());
-    for (int i = 0; i < options.words_count; i++) {
-      size_t word_i = 0;
-      for (size_t j = 0; j < 11; j++) {
-        size_t offset = i * 11 + j;
-        if ((rnd[offset / 8] & (1 << (offset & 7))) != 0) {
-          word_i |= 1 << j;
-        }
-      }
-      words.push_back(bip_words[word_i].copy());
-    }
-
-    bool has_password = !options.password.empty();
-
-    td::optional<Mnemonic> mnemonic_without_password;
-    if (has_password) {
-      auto copy_words = td::transform(words, [](auto &w) { return w.copy(); });
-      mnemonic_without_password = Mnemonic::create(std::move(copy_words), {}).move_as_ok();
-      if (!mnemonic_without_password.value().is_password_seed()) {
-        A++;
-        continue;
-      }
-    }
-
-    auto mnemonic = Mnemonic::create(std::move(words), options.password.copy()).move_as_ok();
-
-    if (!mnemonic.is_basic_seed()) {
-      B++;
-      continue;
-    }
-
-    if (has_password && mnemonic_without_password.value().is_basic_seed()) {
-      C++;
-      continue;
-    }
-
-    LOG(INFO) << "Mnemonic generation debug stats: " << A << " " << B << " " << C << " " << timer;
-    return std::move(mnemonic);
-  }
-  return td::Status::Error("Failed to create a mnemonic (must not happen)");
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Mnemonic.h b/third-party/td/td/tde2e/td/e2e/Mnemonic.h
deleted file mode 100644
index 79534ee0d7..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Mnemonic.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/Keys.h"
-
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace tde2e_core {
-
-class Mnemonic {
- public:
-  static constexpr int PBKDF_ITERATIONS = 100000;
-  static td::Result<Mnemonic> create(td::SecureString words, td::SecureString password);
-  static td::Result<Mnemonic> create(std::vector<td::SecureString> words, td::SecureString password);
-  struct Options {
-    Options();
-    int words_count = 24;
-    td::SecureString password;
-    td::SecureString entropy;
-  };
-  static td::Result<Mnemonic> create_new(Options options = {});
-
-  td::SecureString to_entropy() const;
-
-  td::SecureString to_seed() const;
-
-  PrivateKey to_private_key() const;
-
-  bool is_basic_seed() const;
-  bool is_password_seed() const;
-
-  std::vector<td::SecureString> get_words() const;
-  td::SecureString get_words_string() const;
-
-  static std::vector<td::SecureString> normalize_and_split(td::SecureString words);
-  static td::Span<std::string> word_hints(td::Slice prefix);
-  static std::vector<std::string> generate_verification_words(td::Slice data);
-
- private:
-  std::vector<td::SecureString> words_;
-  td::SecureString password_;
-
-  Mnemonic(std::vector<td::SecureString> words, td::SecureString password);
-  static td::SecureString join(td::Span<td::SecureString> words);
-  static td::Result<Mnemonic> create_from_normalized(const std::vector<td::SecureString> &words,
-                                                     td::SecureString password);
-  friend td::StringBuilder &operator<<(td::StringBuilder &sb, const Mnemonic &mnemonic);
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/QRHandshake.cpp b/third-party/td/td/tde2e/td/e2e/QRHandshake.cpp
deleted file mode 100644
index 1593777de5..0000000000
--- a/third-party/td/td/tde2e/td/e2e/QRHandshake.cpp
+++ /dev/null
@@ -1,223 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/QRHandshake.h"
-
-#include "td/e2e/e2e_api.h"
-#include "td/e2e/MessageEncryption.h"
-
-#include "td/telegram/e2e_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/tl_parsers.h"
-
-namespace tde2e_core {
-
-namespace e2e = td::e2e_api;
-
-QRHandshakeBob::QRHandshakeBob(td::int64 bob_user_id, PrivateKey &&bob_private_key)
-    : bob_ephemeral_private_key_(PrivateKey::generate().move_as_ok())
-    , bob_private_key_(std::move(bob_private_key))
-    , bob_user_id_(bob_user_id)
-    , bob_nonce_(generate_nonce()) {
-}
-
-QRHandshakeBob QRHandshakeBob::create(td::int64 bob_user_id, PrivateKey bob_private_key) {
-  return QRHandshakeBob(bob_user_id, std::move(bob_private_key));
-}
-
-std::string QRHandshakeBob::generate_start() const {
-  return serialize_boxed(e2e::e2e_handshakeQR(bob_ephemeral_private_key_.to_public_key().to_u256(), bob_nonce_));
-}
-
-td::Result<td::SecureString> QRHandshakeBob::receive_accept(td::int64 alice_user_id, PublicKey alice_public_key,
-                                                            td::Slice encrypted_accept) {
-  if (had_accept_) {
-    return td::Status::Error("Already processed accept");
-  }
-  had_accept_ = true;
-
-  CHECK(!o_alice_public_key_);
-  CHECK(!o_alice_user_id_);
-  CHECK(!o_alice_nonce_);
-
-  o_alice_public_key_ = std::move(alice_public_key);
-  o_alice_user_id_ = alice_user_id;
-
-  TRY_RESULT_ASSIGN(o_ephemeral_shared_secret_, bob_ephemeral_private_key_.compute_shared_secret(*o_alice_public_key_));
-  TRY_RESULT(shared_secret_tmp, bob_private_key_.compute_shared_secret(*o_alice_public_key_));
-  o_shared_secret_ = MessageEncryption::hmac_sha512(o_ephemeral_shared_secret_.value(), shared_secret_tmp);
-
-  TRY_RESULT(decrypted_accept, decrypt_ephemeral(encrypted_accept));
-  td::TlParser parser(decrypted_accept);
-  auto message = e2e::e2e_HandshakePrivate::fetch(parser);
-  TRY_STATUS_PREFIX(parser.get_status(), "Failed to parse message: ");
-  if (message->get_id() != e2e::e2e_handshakePrivateAccept::ID) {
-    return td::Status::Error("Unexpected public message type");
-  }
-  auto accept = td::move_tl_object_as<e2e::e2e_handshakePrivateAccept>(message);
-  CHECK(accept);
-
-  o_alice_nonce_ = accept->alice_nonce_;
-
-  CHECK(o_alice_user_id_);
-  CHECK(o_alice_public_key_);
-  CHECK(o_alice_nonce_);
-
-  if (accept->bob_nonce_ != bob_nonce_) {
-    return td::Status::Error("Bob's nonce mismatch");
-  }
-  if (PublicKey::from_u256(accept->alice_PK_) != *o_alice_public_key_) {
-    return td::Status::Error("Alice's public key mismatch");
-  }
-  if (PublicKey::from_u256(accept->bob_PK_) != bob_private_key_.to_public_key()) {
-    return td::Status::Error("Bob's public key mismatch");
-  }
-  if (accept->alice_user_id_ != *o_alice_user_id_) {
-    return td::Status::Error("Alice's user_id mismatch");
-  }
-  if (accept->bob_user_id_ != bob_user_id_) {
-    return td::Status::Error("Bob's user_id mismatch");
-  }
-
-  auto decrypted_message = serialize_boxed(
-      e2e::e2e_handshakePrivateFinish(o_alice_public_key_.value().to_u256(), bob_private_key_.to_public_key().to_u256(),
-                                      *o_alice_user_id_, bob_user_id_, *o_alice_nonce_, bob_nonce_));
-  return encrypt(decrypted_message);
-}
-
-td::SecureString QRHandshakeBob::encrypt(td::Slice data) const {
-  CHECK(o_shared_secret_);
-  return MessageEncryption::encrypt_data(data, *o_shared_secret_);
-}
-
-td::Result<td::SecureString> QRHandshakeBob::decrypt(td::Slice encrypted_message) const {
-  if (!o_shared_secret_) {
-    return td::Status::Error("Have no shared secret (handshake is in progress)");
-  }
-  return MessageEncryption::decrypt_data(encrypted_message, *o_shared_secret_);
-}
-td::Result<td::SecureString> QRHandshakeBob::decrypt_ephemeral(td::Slice encrypted_message) const {
-  if (!o_ephemeral_shared_secret_) {
-    return td::Status::Error("Have no ephemeral shared secret (handshake is in progress)");
-  }
-  return MessageEncryption::decrypt_data(encrypted_message, *o_ephemeral_shared_secret_);
-}
-
-QRHandshakeAlice::QRHandshakeAlice(td::int64 alice_user_id, PrivateKey &&alice_private_key, td::int64 bob_user_id,
-                                   PublicKey &&bob_public_key, const td::UInt256 &bob_nonce,
-                                   td::SecureString &&ephemeral_shared_secret, td::SecureString &&shared_secret)
-    : alice_private_key_(std::move(alice_private_key))
-    , alice_user_id_(alice_user_id)
-    , alice_nonce_(generate_nonce())
-    , bob_public_key_(std::move(bob_public_key))
-    , bob_user_id_(bob_user_id)
-    , bob_nonce_(bob_nonce)
-    , ephemeral_shared_secret_(std::move(ephemeral_shared_secret))
-    , shared_secret_(std::move(shared_secret)) {
-}
-
-td::Result<QRHandshakeAlice> QRHandshakeAlice::create(td::int64 alice_user_id, PrivateKey alice_private_key,
-                                                      td::int64 bob_user_id, PublicKey bob_public_key,
-                                                      td::Slice serialized_qr) {
-  auto alice_public_key = alice_private_key.to_public_key();
-  td::TlParser parser(serialized_qr);
-  auto message = e2e::e2e_HandshakePublic::fetch(parser);
-  TRY_STATUS_PREFIX(parser.get_status(), "Failed to parse public qr: ");
-  if (message->get_id() != e2e::e2e_handshakeQR::ID) {
-    return td::Status::Error("Unexpected public message type");
-  }
-  auto qr = td::move_tl_object_as<e2e::e2e_handshakeQR>(message);
-  CHECK(qr);
-
-  auto bob_ephemeral_public_key = PublicKey::from_u256(qr->bob_ephemeral_PK_);
-  TRY_RESULT(ephemeral_shared_secret, alice_private_key.compute_shared_secret(bob_ephemeral_public_key));
-  TRY_RESULT(shared_secret_tmp, alice_private_key.compute_shared_secret(bob_public_key));
-  auto shared_secret = MessageEncryption::hmac_sha512(ephemeral_shared_secret, shared_secret_tmp);
-  return QRHandshakeAlice{alice_user_id,
-                          std::move(alice_private_key),
-                          bob_user_id,
-                          std::move(bob_public_key),
-                          qr->bob_nonce_,
-                          std::move(ephemeral_shared_secret),
-                          std::move(shared_secret)};
-}
-
-td::string QRHandshakeAlice::serialize_login_import(td::Slice accept, td::Slice encrypted_alice_pk) {
-  return serialize_boxed(e2e::e2e_handshakeLoginExport(accept.str(), encrypted_alice_pk.str()));
-}
-td::Result<std::pair<td::string, td::string>> QRHandshakeAlice::deserialize_login_import(td::Slice data) {
-  td::TlParser parser(data);
-  auto message = e2e::e2e_HandshakePublic::fetch(parser);
-  TRY_STATUS_PREFIX(parser.get_status(), "Failed to parse message: ");
-  if (message->get_id() != e2e::e2e_handshakeLoginExport::ID) {
-    return td::Status::Error("Unexpected public message type");
-  }
-  auto login_export = td::move_tl_object_as<e2e::e2e_handshakeLoginExport>(message);
-  CHECK(login_export);
-  return std::make_pair(login_export->accept_, login_export->encrypted_key_);
-}
-
-td::SecureString QRHandshakeAlice::generate_accept() const {
-  auto decrypted_message = serialize_boxed(e2e::e2e_handshakePrivateAccept(alice_private_key_.to_public_key().to_u256(),
-                                                                           bob_public_key_.to_u256(), alice_user_id_,
-                                                                           bob_user_id_, alice_nonce_, bob_nonce_));
-  return encrypt_ephemeral(decrypted_message);
-}
-
-td::Status QRHandshakeAlice::receive_finish(td::Slice encrypted_finish) {
-  if (had_finish_) {
-    return td::Status::Error("Already processed finish");
-  }
-  had_finish_ = true;
-
-  TRY_RESULT(decrypted_finish, decrypt(encrypted_finish));
-  td::TlParser parser(decrypted_finish);
-  auto message = e2e::e2e_HandshakePrivate::fetch(parser);
-  TRY_STATUS_PREFIX(parser.get_status(), "Failed to parse message: ");
-  if (message->get_id() != e2e::e2e_handshakePrivateFinish::ID) {
-    return td::Status::Error("Unexpected public message type");
-  }
-  auto finish = td::move_tl_object_as<e2e::e2e_handshakePrivateFinish>(message);
-  CHECK(finish);
-
-  if (finish->alice_nonce_ != alice_nonce_) {
-    return td::Status::Error("Bob's nonce mismatch");
-  }
-  if (finish->bob_nonce_ != bob_nonce_) {
-    return td::Status::Error("Bob's nonce mismatch");
-  }
-  if (PublicKey::from_u256(finish->alice_PK_) != alice_private_key_.to_public_key()) {
-    return td::Status::Error("Alice's public key mismatch");
-  }
-  if (PublicKey::from_u256(finish->bob_PK_) != bob_public_key_) {
-    return td::Status::Error("Bob's public key mismatch");
-  }
-  if (finish->alice_user_id_ != alice_user_id_) {
-    return td::Status::Error("Alice's user_id mismatch");
-  }
-  if (finish->bob_user_id_ != bob_user_id_) {
-    return td::Status::Error("Bob's user_id mismatch");
-  }
-
-  return td::Status::OK();
-}
-
-td::SecureString QRHandshakeAlice::encrypt_ephemeral(td::Slice data) const {
-  return MessageEncryption::encrypt_data(data, ephemeral_shared_secret_);
-}
-td::SecureString QRHandshakeAlice::encrypt(td::Slice data) const {
-  return MessageEncryption::encrypt_data(data, shared_secret_);
-}
-
-td::Result<td::SecureString> QRHandshakeAlice::decrypt(td::Slice data) const {
-  return MessageEncryption::decrypt_data(data, shared_secret_);
-}
-td::Result<td::SecureString> QRHandshakeAlice::shared_secret() const {
-  return td::SecureString(as_slice(ephemeral_shared_secret_));
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/QRHandshake.h b/third-party/td/td/tde2e/td/e2e/QRHandshake.h
deleted file mode 100644
index ce7f79cca9..0000000000
--- a/third-party/td/td/tde2e/td/e2e/QRHandshake.h
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/utils.h"
-
-#include "td/utils/common.h"
-#include "td/utils/optional.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-#include <utility>
-
-namespace tde2e_core {
-
-struct QRHandshakeBob {
-  QRHandshakeBob(td::int64 bob_user_id, PrivateKey &&bob_private_key);
-
-  static QRHandshakeBob create(td::int64 bob_user_id, PrivateKey bob_private_key);
-
-  std::string generate_start() const;
-
-  td::Result<td::SecureString> receive_accept(td::int64 alice_user_id, PublicKey alice_public_key,
-                                              td::Slice encrypted_accept);
-
-  td::SecureString encrypt(td::Slice data) const;
-  td::Result<td::SecureString> decrypt(td::Slice encrypted_message) const;
-  td::Result<td::SecureString> decrypt_ephemeral(td::Slice encrypted_message) const;
-  td::Result<td::SecureString> shared_secret() const {
-    if (!o_ephemeral_shared_secret_) {
-      return td::Status::Error("No shared secret was set");
-    }
-    return td::SecureString(as_slice(*o_ephemeral_shared_secret_));
-  }
-
-  PrivateKey bob_ephemeral_private_key_;
-
-  PrivateKey bob_private_key_;
-  td::int64 bob_user_id_;
-  td::UInt256 bob_nonce_;
-
-  td::optional<td::int64> o_alice_user_id_;
-
-  td::optional<PublicKey> o_alice_public_key_;
-  td::optional<td::SecureString> o_shared_secret_;
-  td::optional<td::SecureString> o_ephemeral_shared_secret_;
-  td::optional<td::UInt256> o_alice_nonce_;
-
-  bool had_accept_{false};
-};
-
-struct QRHandshakeAlice {
-  QRHandshakeAlice(td::int64 alice_user_id, PrivateKey &&alice_private_key, td::int64 bob_user_id,
-                   PublicKey &&bob_public_key, const td::UInt256 &bob_nonce, td::SecureString &&ephemeral_shared_secret,
-                   td::SecureString &&shared_secret);
-
-  static td::Result<QRHandshakeAlice> create(td::int64 alice_user_id, PrivateKey alice_private_key,
-                                             td::int64 bob_user_id, PublicKey bob_public_key, td::Slice serialized_qr);
-
-  static td::string serialize_login_import(td::Slice accept, td::Slice encrypted_alice_pk);
-  static td::Result<std::pair<td::string, td::string>> deserialize_login_import(td::Slice data);
-  td::SecureString generate_accept() const;
-
-  td::Status receive_finish(td::Slice encrypted_finish);
-
-  td::SecureString encrypt_ephemeral(td::Slice data) const;
-  td::SecureString encrypt(td::Slice data) const;
-  td::Result<td::SecureString> decrypt(td::Slice data) const;
-  td::Result<td::SecureString> shared_secret() const;
-
-  PrivateKey alice_private_key_;
-  td::int64 alice_user_id_;
-  td::UInt256 alice_nonce_;
-
-  PublicKey bob_public_key_;
-  td::int64 bob_user_id_;
-  td::UInt256 bob_nonce_;
-
-  td::SecureString ephemeral_shared_secret_;
-  td::SecureString shared_secret_;
-
-  bool had_finish_{false};
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/TestBlockchain.cpp b/third-party/td/td/tde2e/td/e2e/TestBlockchain.cpp
deleted file mode 100644
index f9012d30a4..0000000000
--- a/third-party/td/td/tde2e/td/e2e/TestBlockchain.cpp
+++ /dev/null
@@ -1,769 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/TestBlockchain.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/simple_tests.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <cstdio>
-#include <ctime>
-#include <set>
-#include <utility>
-
-int VERBOSITY_NAME(blkch) = VERBOSITY_NAME(INFO);
-namespace tde2e_api {
-Result<SecureBytes> call_export_shared_key(CallId call_id);
-}  // namespace tde2e_api
-namespace tde2e_core {
-
-// BlockchainLogger implementation
-BlockchainLogger::BlockchainLogger(const std::string &log_file_path) : log_file_path_(log_file_path) {
-  log_file_.open(log_file_path, std::ios::out | std::ios::trunc);  // Open in append mode
-  LOG(ERROR) << "OPENING BLOCKCHAIN LOG FILE: " << log_file_path_;
-  if (!log_file_.is_open()) {
-    LOG(ERROR) << "Failed to open blockchain log file: " << log_file_path;
-  } else {
-    // Write a header to indicate a new test session
-    log_file_ << "===== NEW TEST SESSION " << std::time(nullptr) << " =====\n";
-    log_file_.flush();
-  }
-}
-
-BlockchainLogger::~BlockchainLogger() {
-  close();
-}
-
-void BlockchainLogger::close() {
-  if (log_file_.is_open()) {
-    log_file_.close();
-    LOG(ERROR) << "CLOSE";
-  }
-}
-
-void BlockchainLogger::write_separator() {
-  log_file_ << "---\n";
-  log_file_.flush();
-}
-
-std::string BlockchainLogger::base64_encode(td::Slice data) {
-  return td::base64_encode(data);
-}
-
-void BlockchainLogger::log_try_apply_block(td::Slice block_slice, Height height, const td::Status &result) {
-  if (!log_file_.is_open())
-    return;
-
-  log_file_ << "TRY_APPLY_BLOCK\n";
-  log_file_ << base64_encode(block_slice) << "\n";
-  log_file_ << base64_encode(Blockchain::from_local_to_server(block_slice.str()).move_as_ok()) << "\n";
-  log_file_ << height.height << "\n";
-  log_file_ << height.broadcast_height << "\n";
-  if (result.is_ok()) {
-    log_file_ << "OK\n";
-  } else {
-    log_file_ << "ERROR " << result.code() << " " << result.message().str() << "\n";
-  }
-  write_separator();
-}
-
-void BlockchainLogger::log_try_apply_broadcast_block(td::Slice block_slice, Height height, const td::Status &result) {
-  if (!log_file_.is_open())
-    return;
-
-  log_file_ << "TRY_APPLY_BROADCAST_BLOCK\n";
-  log_file_ << base64_encode(block_slice) << "\n";
-  log_file_ << base64_encode(Blockchain::from_local_to_server(block_slice.str()).move_as_ok()) << "\n";
-  log_file_ << height.height << "\n";
-  log_file_ << height.broadcast_height << "\n";
-  if (result.is_ok()) {
-    log_file_ << "OK\n";
-  } else {
-    log_file_ << "ERROR " << result.code() << " " << result.message().str() << "\n";
-  }
-  write_separator();
-}
-
-void BlockchainLogger::log_reindex() {
-  if (!log_file_.is_open())
-    return;
-
-  log_file_ << "REINDEX\n";
-  write_separator();
-}
-
-void BlockchainLogger::log_reset() {
-  if (!log_file_.is_open())
-    return;
-
-  log_file_ << "RESET\n";
-  write_separator();
-}
-
-void BlockchainLogger::log_get_block(int subchain_id, size_t height, const td::Result<std::string> &result) {
-  if (!log_file_.is_open())
-    return;
-
-  log_file_ << "GET_BLOCK\n";
-  log_file_ << subchain_id << "\n";
-  log_file_ << height << "\n";
-  if (result.is_ok()) {
-    log_file_ << "OK\n";
-    log_file_ << base64_encode(result.ok()) << "\n";
-  } else {
-    log_file_ << "ERROR " << result.error().code() << " " << result.error().message().str() << "\n";
-  }
-  write_separator();
-}
-
-void BlockchainLogger::log_get_height(Height height) {
-  if (!log_file_.is_open())
-    return;
-
-  log_file_ << "GET_HEIGHT\n";
-  log_file_ << height.height << "\n";
-  log_file_ << height.broadcast_height << "\n";
-  write_separator();
-}
-
-void BlockchainLogger::log_get_proof(td::int64 height, const std::vector<std::string> &keys,
-                                     const td::Result<std::string> &result) {
-  if (!log_file_.is_open())
-    return;
-
-  log_file_ << "GET_PROOF\n";
-  log_file_ << height << "\n";
-  log_file_ << keys.size() << "\n";
-  for (const auto &key : keys) {
-    log_file_ << base64_encode(key) << "\n";
-  }
-  if (result.is_ok()) {
-    log_file_ << "OK\n";
-    log_file_ << base64_encode(result.ok()) << "\n";
-  } else {
-    log_file_ << "ERROR " << result.error().code() << " " << result.error().message().str() << "\n";
-  }
-  write_separator();
-}
-
-// ServerBlockchain implementation with logging
-td::Status ServerBlockchain::try_apply_block(td::Slice block_slice) {
-  TRY_RESULT(block, Block::from_tl_serialized(block_slice));
-  ValidateOptions validate_options;
-  validate_options.permissions = GroupParticipantFlags::AllPermissions;
-  validate_options.validate_signature = true;
-  validate_options.validate_state_hash = true;
-  auto status = blockchain_.try_apply_block(block, validate_options);
-  if (status.is_ok()) {
-    blocks_.push_back(block);
-    broadcast_chain_.on_new_main_block(blockchain_);
-  }
-
-  if (logger_) {
-    logger_->log_try_apply_block(block_slice, get_height(), status);
-  }
-
-  return status;
-}
-
-td::Status ServerBlockchain::try_apply_broadcast(td::Slice broadcast_slice) {
-  auto status = broadcast_chain_.try_apply_block(broadcast_slice);
-  if (status.is_ok()) {
-    broadcast_blocks_.push_back(broadcast_slice.str());
-  }
-  if (logger_) {
-    logger_->log_try_apply_broadcast_block(broadcast_slice, get_height(), status);
-  }
-  return status;
-}
-
-void ServerBlockchain::reindex() {
-  snapshot_ = blockchain_.state_.key_value_state_.build_snapshot().move_as_ok();
-  auto last_block = blockchain_.last_block_;
-  blockchain_ = Blockchain::create_from_block(last_block, snapshot_).move_as_ok();
-}
-
-td::Result<std::string> ServerBlockchain::get_block(size_t height, int sub_chain) const {
-  td::Result<std::string> result;
-  if (sub_chain == 0) {
-    if (height >= blocks_.size()) {
-      result = td::Status::Error(PSLICE() << "Invalid height " << height);
-    } else {
-      CHECK(blocks_[height].height_ == static_cast<td::int64>(height));
-      result = Blockchain::from_local_to_server(blocks_[height].to_tl_serialized());
-    }
-  } else if (sub_chain == 1) {
-    if (height >= broadcast_blocks_.size()) {
-      result = td::Status::Error(PSLICE() << "Invalid height " << height);
-    } else {
-      result = Blockchain::from_local_to_server(broadcast_blocks_[height]);
-    }
-  }
-
-  if (logger_) {
-    logger_->log_get_block(sub_chain, height, result);
-  }
-
-  return result;
-}
-
-Height ServerBlockchain::get_height() const {
-  auto height = blockchain_.get_height();
-  auto broadcast_height = static_cast<td::int64>(broadcast_blocks_.size()) - 1;
-  auto res = Height{height, broadcast_height};
-
-  /*
-  if (logger_) {
-    logger_->log_get_height(res);
-  }
-  */
-
-  return res;
-}
-
-td::Result<std::string> ServerBlockchain::get_proof(td::int64 height, const std::vector<std::string> &keys) const {
-  td::Result<std::string> result = [&]() -> td::Result<std::string> {
-    if (height != blockchain_.get_height()) {
-      return td::Status::Error("Invalid height");
-    }
-    auto keys_slices = td::transform(keys, [](auto &x) { return td::Slice(x); });
-    return blockchain_.state_.key_value_state_.gen_proof(keys_slices);
-  }();
-
-  if (logger_) {
-    logger_->log_get_proof(height, keys, result);
-  }
-
-  return result;
-}
-
-const Blockchain &ServerBlockchain::get_blockchain() const {
-  return blockchain_;
-}
-
-std::string BaselineBlockchainState::get_value(const std::string &key) const {
-  auto it = key_value_state.find(key);
-  if (it == key_value_state.end()) {
-    return "";
-  }
-  return it->second;
-}
-
-void BaselineBlockchainState::apply_changes(const std::vector<Change> &changes) {
-  for (const auto &change_v : changes) {
-    std::visit(td::overloaded([](const ChangeNoop &) {},
-                              [&](const ChangeSetValue &change) { key_value_state[change.key] = change.value; },
-                              [&](const ChangeSetGroupState &change) { group_state = change.group_state; },
-                              [&](const ChangeSetSharedKey &change) { shared_key = change.shared_key; }),
-               change_v.value);
-  }
-  height++;
-}
-
-td::Status expect_error(tde2e_core::E expected_code, td::Result<ApplyResult> r_received) {
-  TRY_RESULT(received_result, std::move(r_received));
-  const auto &received = received_result.status;
-  auto expected_sw = tde2e_api::error_string(expected_code);
-  auto expected = td::Slice(expected_sw.data(), expected_sw.size());
-  if (received.is_ok()) {
-    return td::Status::Error(PSLICE() << "Unexpected OK, expected " << expected);
-  }
-  if (!td::begins_with(received.message(), expected)) {
-    return td::Status::Error(PSLICE() << "Unexpected " << received << ", expected " << expected);
-  }
-  return td::Status::OK();
-}
-
-Change BlockBuilder::make_group_change(const std::vector<GroupParticipant> &participants) {
-  return Change{ChangeSetGroupState{BlockBuilder::make_group_state(participants)}};
-}
-
-Change BlockBuilder::make_set_value(std::string key, std::string value) {
-  return Change{ChangeSetValue{std::move(key), std::move(value)}};
-}
-
-GroupSharedKeyRef BlockBuilder::make_shared_key(const std::vector<td::int64> &user_ids) {
-  auto n = user_ids.size();
-  auto res = std::make_shared<const GroupSharedKey>(
-      GroupSharedKey{PublicKey::from_u256({}), "dummy", user_ids, std::vector<std::string>(n, "??")});
-  if (user_ids.empty()) {
-    res = GroupSharedKey::empty_shared_key();
-  }
-  return res;
-}
-
-GroupStateRef BlockBuilder::make_group_state(std::vector<GroupParticipant> users, td::int32 external_permissions) {
-  return std::make_shared<GroupState>(GroupState{std::move(users), external_permissions});
-}
-
-Block BlockBuilder::finish() {
-  CHECK(has_height);
-  CHECK(has_signature);
-  CHECK(has_block_hash);
-  CHECK(has_hash_proof);
-  CHECK(has_shared_key_proof);
-  CHECK(has_group_state_proof);
-  CHECK(has_signature_public_key);
-  return block;
-}
-
-Block BlockBuilder::build(const PrivateKey &private_key) {
-  with_public_key(private_key.to_public_key());
-  sign(private_key);
-  return finish();
-}
-
-Block BlockBuilder::build_no_public_key(const PrivateKey &private_key) {
-  skip_public_key();
-  sign(private_key);
-  return finish();
-}
-
-Block BlockBuilder::build_zero_sign() {
-  zero_sign();
-  return finish();
-}
-
-BlockBuilder &BlockBuilder::with_height(td::int32 height) {
-  CHECK(!has_height);
-  has_height = true;
-  block.height_ = height;
-  return *this;
-}
-
-BlockBuilder &BlockBuilder::with_block_hash(td::UInt256 hash) {
-  CHECK(!has_block_hash);
-  has_block_hash = true;
-  block.prev_block_hash_ = hash;
-  return *this;
-}
-
-BlockBuilder &BlockBuilder::with_previous_block(Block &previous_block) {
-  return with_height(previous_block.height_ + 1).with_block_hash(previous_block.calc_hash());
-}
-
-BlockBuilder &BlockBuilder::with_public_key(const PrivateKey &private_key) {
-  return with_public_key(private_key.to_public_key());
-}
-
-BlockBuilder &BlockBuilder::with_public_key(const PublicKey &public_key) {
-  CHECK(!has_signature_public_key);
-  has_signature_public_key = true;
-  block.o_signature_public_key_ = public_key;
-  return *this;
-}
-
-BlockBuilder &BlockBuilder::skip_public_key() {
-  CHECK(!has_signature_public_key);
-  has_signature_public_key = true;
-  return *this;
-}
-
-BlockBuilder &BlockBuilder::set_value_raw(td::Slice key, td::Slice value) {
-  kv_state_.set_value(key, value).ensure();
-  block.state_proof_.kv_hash = KeyValueHash{kv_state_.get_hash()};
-  block.changes_.push_back(Change{ChangeSetValue{key.str(), value.str()}});
-  has_hash_proof = true;
-  return *this;
-}
-
-BlockBuilder &BlockBuilder::set_value(td::Slice key, td::Slice value) {
-  return set_value_raw(hash_key(key), std::move(value));
-}
-
-BlockBuilder &BlockBuilder::with_group_state(const std::vector<GroupParticipant> &users, bool in_changes, bool in_proof,
-                                             td::int32 external_permissions) {
-  auto state = make_group_state(users, external_permissions);
-  if (in_changes) {
-    block.changes_.push_back(Change{ChangeSetGroupState{state}});
-  }
-  if (in_proof) {
-    CHECK(!has_group_state_proof);
-    has_group_state_proof = true;
-    block.state_proof_.o_group_state = state;
-  }
-  return *this;
-}
-
-BlockBuilder &BlockBuilder::skip_group_state_proof() {
-  CHECK(!has_group_state_proof);
-  has_group_state_proof = true;
-  return *this;
-}
-
-BlockBuilder &BlockBuilder::with_shared_key(const std::vector<td::int64> &user_ids, bool in_changes, bool in_proof) {
-  auto shared_key = make_shared_key(user_ids);
-  if (in_changes) {
-    block.changes_.push_back(Change{ChangeSetSharedKey{shared_key}});
-  }
-  if (in_proof) {
-    CHECK(!has_shared_key_proof);
-    has_shared_key_proof = true;
-    block.state_proof_.o_shared_key = shared_key;
-  }
-  return *this;
-}
-
-BlockBuilder &BlockBuilder::skip_shared_key_proof() {
-  CHECK(!has_shared_key_proof);
-  has_shared_key_proof = true;
-  return *this;
-}
-
-void BlockBuilder::sign(const PrivateKey &private_key) {
-  if (!has_hash_proof) {
-    has_hash_proof = true;
-    block.state_proof_.kv_hash.hash = TrieNode::empty_node()->hash;
-  }
-
-  CHECK(!has_signature);
-  block.sign_inplace(private_key).ensure();
-  has_signature = true;
-}
-
-void BlockBuilder::zero_sign() {
-  if (!has_hash_proof) {
-    has_hash_proof = true;
-    block.state_proof_.kv_hash.hash = TrieNode::empty_node()->hash;
-  }
-
-  CHECK(!has_signature);
-  block.signature_ = {};
-  has_signature = true;
-}
-
-std::string BlockBuilder::hash_key(td::Slice key) const {
-  std::string hashed_key(32, 0);
-  td::sha256(key, hashed_key);
-  return hashed_key;
-}
-
-BlockchainTester::BlockchainTester() {
-  // Automatically set up logging
-  server_.set_logger(BlockchainLogger::get_instance());
-  BlockchainLogger::get_instance()->log_reset();
-}
-
-td::Result<ApplyResult> BlockchainTester::apply(const Block &block) {
-  return apply(block, block.to_tl_serialized());
-}
-
-td::Result<ApplyResult> BlockchainTester::apply(td::Slice block_str) {
-  TRY_RESULT(block, Block::from_tl_serialized(block_str));
-  return apply(block, block_str);
-}
-
-td::Result<ApplyResult> BlockchainTester::apply(const std::vector<Change> &changes, const PrivateKey &private_key) {
-  add_proof(changes);
-  auto r_block = client_.build_block(changes, private_key);
-  if (r_block.is_error()) {
-    return ApplyResult{r_block.move_as_error()};
-  }
-  return apply(r_block.move_as_ok());
-}
-
-td::Status BlockchainTester::expect_error(E expected, const Block &block) {
-  return ::tde2e_core::expect_error(expected, apply(block));
-}
-
-td::Status BlockchainTester::expect_error(E expected, td::Slice block) {
-  return ::tde2e_core::expect_error(expected, apply(block));
-}
-
-td::Status BlockchainTester::expect_ok(td::Slice block) {
-  TRY_RESULT(answer, apply(block));
-  return std::move(answer.status);
-}
-
-td::Status BlockchainTester::expect_ok_broadcast(td::Slice block) {
-  return server_.try_apply_broadcast(block);
-}
-
-td::Status BlockchainTester::expect_ok(const Block &block) {
-  TRY_RESULT(answer, apply(block));
-  return std::move(answer.status);
-}
-
-td::Status BlockchainTester::expect_ok(const std::vector<Change> &changes, const PrivateKey &private_key) {
-  TRY_RESULT(answer, apply(changes, private_key));
-  return std::move(answer.status);
-}
-
-td::Status BlockchainTester::expect_error(E expected, const std::vector<Change> &changes,
-                                          const PrivateKey &private_key) {
-  return ::tde2e_core::expect_error(expected, apply(changes, private_key));
-}
-
-void BlockchainTester::reindex() {
-  server_.reindex();
-}
-
-td::Result<std::vector<std::string>> BlockchainTester::get_values(const std::vector<std::string> &keys) {
-  add_proof(keys);
-  std::vector<std::string> values;
-  for (const auto &key : keys) {
-    auto client_value = client_.get_value(key).move_as_ok();
-    auto baseline_value = baseline_state_.get_value(key);
-    TEST_ASSERT_EQ(baseline_value, client_value, "baseline and client differs");
-    values.push_back(client_value);
-  }
-  return values;
-}
-
-td::Result<std::string> BlockchainTester::get_block_from_server(td::int64 height, int sub_chain) {
-  return server_.get_block(static_cast<std::size_t>(height), sub_chain);
-}
-
-td::Result<std::string> BlockchainTester::get_value(td::Slice key) {
-  TRY_RESULT(values, get_values({key.str()}));
-  return values.at(0);
-}
-
-td::Status BlockchainTester::expect_key_value(td::Slice key, td::Slice value) {
-  TEST_ASSERT_EQ(value, get_value(key), "");
-  return td::Status::OK();
-}
-
-void BlockchainTester::enable_logging(const std::string &log_file_path) {
-  //BlockchainLogger::set_log_file_path(log_file_path);
-  server_.set_logger(BlockchainLogger::get_instance());
-}
-
-td::Result<Height> BlockchainTester::get_height() {
-  return server_.get_height();
-}
-
-void BlockchainTester::add_proof(const std::vector<Change> &changes) {
-  std::vector<std::string> keys;
-  for (auto &change_v : changes) {
-    std::visit(
-        td::overloaded([](const ChangeNoop &) {}, [&keys](const ChangeSetValue &change) { keys.push_back(change.key); },
-                       [](const ChangeSetGroupState &change) {}, [](const ChangeSetSharedKey &change) {}),
-        change_v.value);
-  }
-  add_proof(keys);
-}
-
-td::Result<ApplyResult> BlockchainTester::apply(const Block &block, td::Slice block_str) {
-  add_proof(block.changes_);
-  auto server_status = server_.try_apply_block(block_str);
-  auto client_status = client_.try_apply_block(block_str);
-  if (server_status.is_error() != client_status.is_error()) {
-    return td::Status::Error(PSLICE() << "Server and client return different answers:\n\tserver:" << server_status
-                                      << "\n\tclient:" << client_status);
-  }
-  if (server_status.is_error()) {
-    return ApplyResult{std::move(server_status)};
-  }
-  baseline_state_.apply_changes(block.changes_);
-  return ApplyResult{td::Status::OK()};
-}
-
-void BlockchainTester::add_proof(const std::vector<std::string> &keys) {
-  if (baseline_state_.height != -1) {
-    auto proof = server_.get_proof(baseline_state_.height, keys).move_as_ok();
-    client_.add_proof(proof).ensure();
-  }
-}
-
-CallTester::CallTester(int N) {
-  for (int i = 0; i < N; i++) {
-    auto key = tde2e_api::key_generate_temporary_private_key().value();
-    auto public_key = tde2e_api::key_from_public_key(tde2e_api::key_to_public_key(key).value()).value();
-    users.push_back(User{i + 1, key, public_key});
-  }
-}
-
-td::Status CallTester::start_call(const std::vector<int> &ids) {
-  auto call_state = make_state(ids);
-  TEST_TRY_RESULT(zero_block, to_td(tde2e_api::call_create_zero_block(users[ids[0]].private_key_id, call_state)));
-  for (auto id : ids) {
-    start_call(users[id]);
-  }
-  TEST_TRY_STATUS(bt.expect_ok(zero_block));
-  return td::Status::OK();
-}
-
-td::Status CallTester::update_call(int admin, const std::vector<int> &ids) {
-  auto call_state = make_state(ids);
-  CHECK(users[admin].call_id);
-  TEST_TRY_RESULT(block, to_td(tde2e_api::call_create_change_state_block(users[admin].call_id, call_state)));
-
-  std::set<int> s(ids.begin(), ids.end());
-  for (int i = 0; i < static_cast<int>(users.size()); i++) {
-    if (s.count(i) > 0) {
-      if (!users[i].call_id) {
-        start_call(users[i]);
-      }
-    } else if (users[i].call_id) {
-      stop_call(users[i]);
-    }
-  }
-  TEST_TRY_STATUS(bt.expect_ok(block));
-  return td::Status::OK();
-}
-
-td::Status CallTester::full_sync() {
-  for (auto &user : users) {
-    TEST_TRY_STATUS(user_full_sync(user));
-  }
-  return td::Status::OK();
-}
-
-td::Status CallTester::check_shared_key() {
-  TEST_TRY_STATUS(full_sync());
-  td::optional<std::string> o_key;
-  for (auto &user : users) {
-    if (!user.in_call) {
-      continue;
-    }
-    TRY_RESULT(key, to_td(tde2e_api::call_export_shared_key(user.call_id)));
-    if (!o_key) {
-      o_key = key;
-    }
-    TEST_ASSERT(!key.empty(), "key is empty");
-    TEST_ASSERT_EQ(o_key, key, "key differs");
-  }
-  return td::Status::OK();
-}
-
-td::Status CallTester::check_emoji_hash() {
-  TEST_TRY_STATUS(run_emoji_proto());  // ensure that proto is finished
-  td::optional<std::string> o_key;
-  for (auto &user : users) {
-    if (!user.in_call) {
-      continue;
-    }
-    TRY_RESULT(state, to_td(tde2e_api::call_get_verification_state(user.call_id)));
-    TEST_ASSERT(state.emoji_hash, "emoji hash is missing");
-    TEST_ASSERT(!state.emoji_hash->empty(), "emoji hash is empty");
-    if (!o_key) {
-      o_key = state.emoji_hash.value();
-    }
-    TEST_ASSERT_EQ(o_key, state.emoji_hash.value(), "key differs");
-  }
-  return td::Status::OK();
-}
-
-td::Status CallTester::run_emoji_proto() {
-  TEST_TRY_STATUS(full_send());
-  TEST_TRY_STATUS(full_sync());
-  TEST_TRY_STATUS(full_send());
-  TEST_TRY_STATUS(full_sync());
-  return td::Status::OK();
-}
-
-tde2e_api::CallParticipant CallTester::User::to_participant(int permissions) const {
-  return tde2e_api::CallParticipant{user_id, public_key_id, permissions};
-}
-
-void CallTester::start_call(User &user) {
-  CHECK(user.call_id == 0);
-  CHECK(!user.in_call);
-  user.in_call = true;
-  user.height = bt.get_height().move_as_ok();
-}
-
-void CallTester::stop_call(User &user) {
-  CHECK(user.call_id != 0);
-  CHECK(user.in_call);
-  user.in_call = false;
-  tde2e_api::call_destroy(user.call_id).value();
-  user.call_id = 0;
-}
-
-tde2e_api::CallState CallTester::make_state(const std::vector<int> &ids) {
-  tde2e_api::CallState state;
-  state.participants = td::transform(ids, [&](int uid) { return users[uid].to_participant(); });
-  return state;
-}
-
-td::Status CallTester::full_send() {
-  for (auto &user : users) {
-    TEST_TRY_STATUS(user_full_send(user));
-  }
-  return td::Status::OK();
-}
-
-td::Result<bool> CallTester::user_full_send(User &user) {
-  if (!user.call_id) {
-    return false;
-  }
-  TEST_TRY_RESULT(msgs, to_td(tde2e_api::call_pull_outbound_messages(user.call_id)));
-  if (msgs.empty()) {
-    return false;
-  }
-  TEST_ASSERT(msgs.size() == 1, "Wrong number of messages");
-  TEST_TRY_STATUS(bt.expect_ok_broadcast(msgs[0]));
-  return true;
-}
-
-td::Result<bool> CallTester::user_full_sync(User &user) {
-  if (!user.in_call) {
-    return false;
-  }
-  bool res = false;
-  if (!user.call_id) {
-    TEST_TRY_STATUS(user_init_call(user));
-    res = true;
-  }
-  while (true) {
-    TEST_TRY_RESULT(changed, user_sync_step(user));
-    if (!changed) {
-      return res;
-    }
-    res = true;
-  }
-}
-
-td::Status CallTester::user_init_call(User &user) {
-  CHECK(user.call_id == 0);
-  CHECK(user.in_call);
-  TEST_TRY_RESULT(block, bt.get_block_from_server(++user.height.height));
-  TRY_RESULT(call_id, to_td(tde2e_api::call_create(user.user_id, user.private_key_id, block)));
-  user.call_id = call_id;
-  return td::Status::OK();
-}
-
-td::Result<bool> CallTester::user_sync_step(User &user) {
-  TRY_RESULT(changed, user_sync_chain_step(user));
-  if (changed) {
-    return changed;
-  }
-  return user_sync_broadcast_step(user);
-}
-
-td::Result<bool> CallTester::user_sync_chain_step(User &user) {
-  auto height = bt.get_height().move_as_ok();
-  if (user.height.height == height.height) {
-    return false;
-  }
-  TEST_TRY_RESULT(block, bt.get_block_from_server(++user.height.height));
-  TEST_TRY_STATUS(to_td(tde2e_api::call_apply_block(user.call_id, block)));
-  return true;
-}
-
-td::Result<bool> CallTester::user_sync_broadcast_step(User &user) {
-  auto height = bt.get_height().move_as_ok();
-  CHECK(user.height.broadcast_height <= height.broadcast_height);
-  if (user.height.broadcast_height == height.broadcast_height) {
-    return false;
-  }
-  TEST_TRY_RESULT(block, bt.get_block_from_server(++user.height.broadcast_height, 1));
-  auto r = tde2e_api::call_receive_inbound_message(user.call_id, block);
-  if (!r.is_ok()) {
-    return td::Status::Error(PSLICE() << "Failed to call apply broadcast: " << r.error().message);
-  }
-  return true;
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/TestBlockchain.h b/third-party/td/td/tde2e/td/e2e/TestBlockchain.h
deleted file mode 100644
index 85c51e13c8..0000000000
--- a/third-party/td/td/tde2e/td/e2e/TestBlockchain.h
+++ /dev/null
@@ -1,232 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/Blockchain.h"
-#include "td/e2e/Call.h"
-#include "td/e2e/utils.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-#include <fstream>
-#include <map>
-#include <memory>
-#include <string>
-#include <vector>
-
-extern int VERBOSITY_NAME(blkch);
-namespace tde2e_core {
-
-struct Height {
-  td::int64 height;
-  td::int64 broadcast_height;
-};
-// Simple blockchain operation logger that writes to a file
-class BlockchainLogger {
- public:
-  static std::shared_ptr<BlockchainLogger> &get_instance() {
-    static std::shared_ptr<BlockchainLogger> instance = std::make_shared<BlockchainLogger>("blockchain_test.log");
-    return instance;
-  }
-
-  explicit BlockchainLogger(const std::string &log_file_path);
-  ~BlockchainLogger();
-
-  void log_try_apply_block(td::Slice block_slice, Height height, const td::Status &result);
-  void log_try_apply_broadcast_block(td::Slice block_slice, Height height, const td::Status &result);
-  void log_reindex();
-  void log_reset();
-  void log_get_block(int subchain_id, size_t height, const td::Result<std::string> &result);
-  void log_get_height(Height height);
-  void log_get_proof(td::int64 height, const std::vector<std::string> &keys, const td::Result<std::string> &result);
-  void close();
-
- private:
-  std::ofstream log_file_;
-  std::string log_file_path_;
-
-  void write_separator();
-  std::string base64_encode(td::Slice data);
-};
-
-// Define a custom verbosity name for blockchain-specific logging
-
-class ServerBlockchain {
- public:
-  ServerBlockchain() = default;
-  explicit ServerBlockchain(std::shared_ptr<BlockchainLogger> logger) : logger_(std::move(logger)) {
-  }
-
-  td::Status try_apply_block(td::Slice block_slice);
-  td::Status try_apply_broadcast(td::Slice broadcast_slice);
-  void reindex();
-  td::Result<std::string> get_block(size_t height, int sub_chain = 0) const;
-  Height get_height() const;
-  td::Result<std::string> get_proof(td::int64 height, const std::vector<std::string> &keys) const;
-  const Blockchain &get_blockchain() const;
-
-  void set_logger(std::shared_ptr<BlockchainLogger> logger) {
-    logger_ = std::move(logger);
-  }
-
- private:
-  Blockchain blockchain_{Blockchain::create_empty()};
-  CallVerificationChain broadcast_chain_{};
-  std::vector<Block> blocks_;
-  std::vector<std::string> broadcast_blocks_;
-  std::string snapshot_;
-  std::shared_ptr<BlockchainLogger> logger_;
-};
-
-struct BaselineBlockchainState {
-  std::map<std::string, std::string> key_value_state;
-  GroupStateRef group_state;
-  GroupSharedKeyRef shared_key;
-  td::int32 height{-1};
-
-  std::string get_value(const std::string &key) const;
-  void apply_changes(const std::vector<Change> &changes);
-};
-
-struct ApplyResult {
-  td::Status status;
-};
-inline td::Status expect_error(tde2e_core::E expected_code, td::Result<ApplyResult> r_received);
-
-struct BlockBuilder {
-  static Change make_group_change(const std::vector<GroupParticipant> &participants);
-  static Change make_set_value(std::string key, std::string value);
-
-  static GroupSharedKeyRef make_shared_key(const std::vector<td::int64> &user_ids);
-  static GroupStateRef make_group_state(std::vector<GroupParticipant> users, td::int32 extrernal_permissions = 0);
-
-  Block finish();
-  Block build(const PrivateKey &private_key);
-  Block build_no_public_key(const PrivateKey &private_key);
-  Block build_zero_sign();
-
-  BlockBuilder &with_height(td::int32 height);
-  BlockBuilder &with_block_hash(td::UInt256 hash);
-  BlockBuilder &with_previous_block(Block &previous_block);
-
-  BlockBuilder &with_public_key(const PrivateKey &private_key);
-  BlockBuilder &with_public_key(const PublicKey &public_key);
-  BlockBuilder &skip_public_key();
-  BlockBuilder &set_value_raw(td::Slice key, td::Slice value);
-
-  //!!! we should check it fails with invalid key length!!!
-  BlockBuilder &set_value(td::Slice key, td::Slice value);
-  BlockBuilder &with_group_state(const std::vector<GroupParticipant> &users, bool in_changes = true,
-                                 bool in_proof = true, td::int32 external_permissions = 0);
-  BlockBuilder &skip_group_state_proof();
-  BlockBuilder &with_shared_key(const std::vector<td::int64> &user_ids, bool in_changes = true, bool in_proof = true);
-  BlockBuilder &skip_shared_key_proof();
-
- private:
-  bool has_height{false};
-  bool has_block_hash{false};
-  bool has_hash_proof{false};
-  bool has_shared_key_proof{false};
-  bool has_group_state_proof{false};
-  bool has_signature_public_key{false};
-  bool has_signature{false};
-  tde2e_core::Block block;
-
-  KeyValueState kv_state_;
-
-  void sign(const PrivateKey &private_key);
-  void zero_sign();
-  std::string hash_key(td::Slice key) const;
-};
-
-struct BlockchainTester {
-  // Default constructor with automatic logging
-  BlockchainTester();
-
-  td::Result<ApplyResult> apply(const Block &block);
-  td::Result<ApplyResult> apply(td::Slice block_str);
-  td::Result<ApplyResult> apply(const std::vector<Change> &changes, const PrivateKey &private_key);
-  td::Status expect_error(E expected, const Block &block);
-  td::Status expect_error(E expected, td::Slice block);
-  td::Status expect_ok(td::Slice block);
-  td::Status expect_ok_broadcast(td::Slice block);
-  td::Status expect_ok(const Block &block);
-  td::Status expect_ok(const std::vector<Change> &changes, const PrivateKey &private_key);
-  td::Status expect_error(E expected, const std::vector<Change> &changes, const PrivateKey &private_key);
-  void reindex();
-  td::Result<std::vector<std::string>> get_values(const std::vector<std::string> &keys);
-
-  td::Result<std::string> get_block_from_server(td::int64 height, int sub_chain = 0);
-
-  td::Result<std::string> get_value(td::Slice key);
-
-  td::Status expect_key_value(td::Slice key, td::Slice value);
-
-  // For backwards compatibility
-  void enable_logging(const std::string &log_file_path);
-  td::Result<Height> get_height();
-
- private:
-  BaselineBlockchainState baseline_state_;
-  ServerBlockchain server_;
-  ClientBlockchain client_;
-
-  void add_proof(const std::vector<Change> &changes);
-
-  td::Result<ApplyResult> apply(const Block &block, td::Slice block_str);
-
-  void add_proof(const std::vector<std::string> &keys);
-};
-
-struct CallTester {
-  explicit CallTester(int N = 10);
-
-  td::Status start_call(const std::vector<int> &ids);
-  td::Status update_call(int admin, const std::vector<int> &ids);
-  td::Status full_sync();
-  td::Status check_shared_key();
-  td::Status check_emoji_hash();
-
-  td::Status run_emoji_proto();
-
- private:
-  struct User {
-    tde2e_api::UserId user_id;
-    tde2e_api::PrivateKeyId private_key_id;
-    tde2e_api::PublicKeyId public_key_id;
-    tde2e_api::CallId call_id{};
-
-    bool in_call{false};
-    Height height{};
-
-    tde2e_api::CallParticipant to_participant(int permissions = 3) const;
-  };
-
-  std::vector<User> users;
-  BlockchainTester bt;
-
-  void start_call(User &user);
-  void stop_call(User &user);
-  tde2e_api::CallState make_state(const std::vector<int> &ids);
-
-  td::Status full_send();
-
-  td::Result<bool> user_full_send(User &user);
-
-  td::Result<bool> user_full_sync(User &user);
-  td::Status user_init_call(User &user);
-
-  td::Result<bool> user_sync_step(User &user);
-  td::Result<bool> user_sync_chain_step(User &user);
-  td::Result<bool> user_sync_broadcast_step(User &user);
-};
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Trie.cpp b/third-party/td/td/tde2e/td/e2e/Trie.cpp
deleted file mode 100644
index 6fdfd2a1d3..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Trie.cpp
+++ /dev/null
@@ -1,505 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/Trie.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/misc.h"
-#include "td/utils/Span.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-
-#include <iostream>
-#include <utility>
-
-namespace tde2e_core {
-
-TrieNode::TrieNode() : data(Empty{}) {
-  hash = compute_hash();
-}
-
-TrieNode::TrieNode(BitString key_suffix, std::string value) : data(Leaf{std::move(key_suffix), std::move(value)}) {
-  hash = compute_hash();
-}
-TrieNode::TrieNode(BitString prefix, TrieRef left, TrieRef right)
-    : data(Inner{std::move(prefix), std::move(left), std::move(right)}) {
-  hash = compute_hash();
-}
-
-TrieNode::TrieNode(const td::UInt256 &hash_value) : hash(hash_value), data(Pruned{-1, {}}) {
-}
-TrieNode::TrieNode(const td::UInt256 &hash_value, td::int64 offset, BitString base_bit_string)
-    : hash(hash_value), data(Pruned{offset, std::move(base_bit_string)}) {
-}
-TrieRef TrieNode::empty_node() {
-  static TrieRef node = std::make_shared<TrieNode>();
-  return node;
-}
-
-td::Result<TrieNode> fetch_node_from_snapshot(td::Slice, BitString &bs);
-
-td::Status TrieNode::try_load(td::Slice snapshot) const {
-  CHECK(get_type() == TrieNodeType::Pruned);
-  const auto &pruned = get_pruned();
-  if (pruned.offset < 0) {
-    return td::Status::Error("Cannot load pruned node");
-  }
-  if (td::narrow_cast<size_t>(pruned.offset) > snapshot.size()) {
-    return td::Status::Error("Cannot load pruned node: invalid offset");
-  }
-  auto bs = pruned.base_bit_string;
-  if (!bs.data_) {
-    bs = BitString(nullptr, bs.begin_bit_, bs.bits_size_);
-  }
-  TRY_RESULT(new_node, fetch_node_from_snapshot(snapshot.substr(td::narrow_cast<std::size_t>(pruned.offset)), bs));
-  if (new_node.hash != hash) {
-    return td::Status::Error("Cannot load pruned node: hash mismatch");
-  }
-  const_cast<TrieNode &>(*this) = std::move(new_node);
-  return td::Status::OK();
-}
-
-template <class StorerT>
-void store_for_hash(const TrieNode &node, StorerT &storer) {
-  using td::store;
-  auto type = node.get_type();
-  if (type == TrieNodeType::Leaf) {
-    store(type, storer);
-    auto &leaf = node.get_leaf();
-    store(leaf.key_suffix, storer);
-    store(leaf.value, storer);
-  } else if (type == TrieNodeType::Inner) {
-    store(type, storer);
-    auto &inner = node.get_inner();
-    store(inner.prefix, storer);
-    store(inner.left->hash, storer);
-    store(inner.right->hash, storer);
-  } else if (type == TrieNodeType::Empty) {
-    store(type, storer);
-  } else {
-    UNREACHABLE();
-  }
-}
-
-td::UInt256 TrieNode::compute_hash() const {
-  td::TlStorerCalcLength calc_length;
-  store_for_hash(*this, calc_length);
-  std::string buf(calc_length.get_length(), 0);
-  td::TlStorerUnsafe storer(td::MutableSlice(buf).ubegin());
-  store_for_hash(*this, storer);
-  td::UInt256 result_hash;
-  sha256(buf, result_hash.as_mutable_slice());
-  return result_hash;
-}
-
-td::Result<TrieRef> set(const TrieRef &n, BitString key, td::Slice value, td::Slice snapshot) {
-  CHECK(n);
-  auto type = n->get_type();
-
-  if (type == TrieNodeType::Pruned) {
-    TRY_STATUS(n->try_load(snapshot));
-    type = n->get_type();
-    CHECK(type != TrieNodeType::Pruned);
-  }
-
-  if (type == TrieNodeType::Empty) {
-    return std::make_shared<TrieNode>(std::move(key), value.str());
-  }
-
-  if (type == TrieNodeType::Leaf) {
-    const auto &leaf = n->get_leaf();
-    if (key == leaf.key_suffix) {
-      return std::make_shared<TrieNode>(key, value.str());
-    } else {
-      size_t i = key.common_prefix_length(leaf.key_suffix);
-      // TODO: what if one key is prefix of another?.. Do we care?
-
-      auto common_prefix = key.substr(0, i);
-
-      auto bit = key.get_bit(i);
-      auto left = std::make_shared<TrieNode>(key.substr(i + 1), value.str());
-      auto right = std::make_shared<TrieNode>(leaf.key_suffix.substr(i + 1), leaf.value);
-      if (bit) {
-        std::swap(left, right);
-      }
-      return std::make_shared<TrieNode>(std::move(common_prefix), std::move(left), std::move(right));
-    }
-  }
-
-  if (type == TrieNodeType::Inner) {
-    const auto &inner = n->get_inner();
-    size_t i = inner.prefix.common_prefix_length(key);
-
-    if (i < inner.prefix.bit_length()) {
-      auto common_prefix = inner.prefix.substr(0, i);
-      auto remaining_prefix = inner.prefix.substr(i + 1);
-      auto bit = inner.prefix.get_bit(i);
-
-      auto left = std::make_shared<TrieNode>(remaining_prefix, inner.left, inner.right);
-      auto right = std::make_shared<TrieNode>(key.substr(i + 1), value.str());
-
-      if (bit) {
-        std::swap(left, right);
-      }
-
-      return std::make_shared<TrieNode>(common_prefix, std::move(left), std::move(right));
-    } else {
-      auto key_bit = key.get_bit(i);
-      auto left = inner.left;
-      auto right = inner.right;
-      if (key_bit) {
-        TRY_RESULT_ASSIGN(right, set(right, key.substr(i + 1), value.str(), snapshot));
-      } else {
-        TRY_RESULT_ASSIGN(left, set(left, key.substr(i + 1), value.str(), snapshot));
-      }
-      return std::make_shared<TrieNode>(inner.prefix, std::move(left), std::move(right));
-    }
-  }
-
-  return nullptr;
-}
-
-td::Result<std::string> get(const TrieRef &n, const BitString &key, td::Slice snapshot) {
-  CHECK(n);
-  auto type = n->get_type();
-
-  if (type == TrieNodeType::Pruned) {
-    TRY_STATUS(n->try_load(snapshot));
-    type = n->get_type();
-    CHECK(type != TrieNodeType::Pruned);
-  }
-
-  if (type == TrieNodeType::Empty) {
-    return "";
-  }
-
-  if (type == TrieNodeType::Leaf) {
-    auto &leaf = n->get_leaf();
-    if (key == leaf.key_suffix) {
-      return leaf.value;
-    } else {
-      return "";
-    }
-  }
-
-  if (type == TrieNodeType::Inner) {
-    const auto &inner = n->get_inner();
-    auto prefix_length = inner.prefix.bit_length();
-    if (key.common_prefix_length(inner.prefix) != prefix_length) {
-      return "";
-    }
-
-    auto key_bit = key.get_bit(prefix_length);
-    if (key_bit) {
-      return get(inner.right, key.substr(prefix_length + 1), snapshot);
-    } else {
-      return get(inner.left, key.substr(prefix_length + 1), snapshot);
-    }
-  }
-
-  return "";
-}
-BitString to_key(td::Slice key) {
-  std::string buf;
-  if (key.size() != 32) {
-    buf.resize(32, 0);
-    td::MutableSlice(buf).copy_from(key);
-    key = buf;
-  }
-  return BitString(key);
-}
-
-td::Result<TrieRef> prune_node(const TrieRef &n, td::MutableSpan<BitString> keys, td::Slice snapshot) {
-  CHECK(n);
-  auto type = n->get_type();
-
-  if (type == TrieNodeType::Pruned) {
-    TRY_STATUS(n->try_load(snapshot));
-    type = n->get_type();
-    CHECK(type != TrieNodeType::Pruned);
-  }
-
-  if (type == TrieNodeType::Empty) {
-    return n;
-  }
-
-  if (keys.empty()) {
-    return std::make_shared<TrieNode>(n->hash);
-  }
-
-  if (type == TrieNodeType::Leaf) {
-    return n;
-  }
-
-  if (type == TrieNodeType::Inner) {
-    const auto &inner = n->get_inner();
-    std::vector<BitString> left_keys;
-    std::vector<BitString> right_keys;
-    for (const auto &key : keys) {
-      auto prefix_len = inner.prefix.bit_length();
-      if (key.common_prefix_length(inner.prefix) == prefix_len) {
-        if (key.get_bit(prefix_len)) {
-          right_keys.push_back(key.substr(prefix_len + 1));
-        } else {
-          left_keys.push_back(key.substr(prefix_len + 1));
-        }
-      }
-    }
-    TRY_RESULT(left, prune_node(inner.left, left_keys, snapshot));
-    TRY_RESULT(right, prune_node(inner.right, right_keys, snapshot));
-    return std::make_shared<TrieNode>(inner.prefix, std::move(left), std::move(right));
-  }
-  return n;
-}
-
-td::Result<TrieRef> generate_pruned_tree(const TrieRef &n, td::Span<td::Slice> keys, td::Slice snapshot) {
-  auto v = td::transform(keys, to_key);
-  return prune_node(n, v, snapshot);
-}
-
-std::ostream &operator<<(std::ostream &os, const td::UInt256 &hash) {
-  os << std::hex;
-  for (auto c : hash.raw) {
-    os << (c >> 4);
-    os << (c & 0xF);
-  }
-  os << std::dec;  // Reset to decimal
-  return os;
-}
-
-void print_tree(const TrieRef &node, const std::string &prefix, bool is_root) {
-  if (!node) {
-    std::cout << prefix << "(null)\n";
-    return;
-  }
-
-  std::string type_str;
-  auto type = node->get_type();
-  switch (type) {
-    case TrieNodeType::Empty:
-      type_str = "Empty";
-      break;
-    case TrieNodeType::Leaf:
-      type_str = "Leaf";
-      break;
-    case TrieNodeType::Inner:
-      type_str = "Inner";
-      break;
-    case TrieNodeType::Pruned:
-      type_str = "Pruned";
-      break;
-  }
-
-  std::cout << prefix;
-  if (is_root) {
-    std::cout << "Root ";
-  }
-  std::cout << type_str << " Node, Hash: " << node->hash << "\n";
-
-  if (type == TrieNodeType::Leaf) {
-    const auto &leaf = node->get_leaf();
-    std::cout << prefix << "  Key Suffix: " << leaf.key_suffix << "\n";
-    std::cout << prefix << "  Value: " << leaf.value << "\n";
-  } else if (type == TrieNodeType::Inner) {
-    const auto &inner = node->get_inner();
-    std::cout << prefix << "  Prefix: " << inner.prefix << "\n";
-    std::cout << prefix << "  Children:\n";
-    std::string child_prefix = prefix + "    ";
-    std::cout << prefix << "    [0]\n";
-    print_tree(inner.left, child_prefix, false);
-    std::cout << prefix << "    [1]\n";
-    print_tree(inner.right, child_prefix, false);
-  }
-}
-
-template <class StorerT>
-void store_for_network(const TrieNode &node, StorerT &storer) {
-  using td::store;
-  auto type = node.get_type();
-  store(type, storer);
-  if (type == TrieNodeType::Leaf) {
-    auto &leaf = node.get_leaf();
-    store(leaf.key_suffix, storer);
-    store(leaf.value, storer);
-  } else if (type == TrieNodeType::Inner) {
-    auto &inner = node.get_inner();
-    store(inner.prefix, storer);
-    store_for_network(*inner.left, storer);
-    store_for_network(*inner.right, storer);
-  } else if (type == TrieNodeType::Pruned) {
-    store(node.hash, storer);
-  } else if (type == TrieNodeType::Empty) {
-  } else {
-    UNREACHABLE();
-  }
-}
-
-template <class ParserT>
-void parse_from_network(TrieRef &ref, ParserT &parser) {
-  BitString bs(256);
-  parse_from_network(ref, parser, bs);
-}
-
-template <class ParserT>
-void parse_from_network(TrieRef &ref, ParserT &parser, BitString &bs) {
-  using td::parse;
-  TrieNodeType type;
-  parse(type, parser);
-  if (type == TrieNodeType::Leaf) {
-    BitString key_suffix = fetch_bit_string(parser, bs);
-    std::string value;
-    parse(value, parser);
-    ref = std::make_shared<TrieNode>(std::move(key_suffix), std::move(value));
-  } else if (type == TrieNodeType::Inner) {
-    BitString prefix = fetch_bit_string(parser, bs);
-    TrieRef left;
-    TrieRef right;
-
-    auto left_bs = bs.substr(prefix.bit_length() + 1);
-    parse_from_network(left, parser, left_bs);
-    auto right_bs = BitString(nullptr, left_bs.begin_bit_, left_bs.bit_length());
-    parse_from_network(right, parser, right_bs);
-    ref = std::make_shared<TrieNode>(std::move(prefix), std::move(left), std::move(right));
-  } else if (type == TrieNodeType::Pruned) {
-    td::UInt256 hash;
-    parse(hash, parser);
-    ref = std::make_shared<TrieNode>(std::move(hash));
-  } else if (type == TrieNodeType::Empty) {
-    ref = TrieNode::empty_node();
-  } else {
-    UNREACHABLE();
-  }
-}
-
-td::Result<std::string> TrieNode::serialize_for_network(const TrieRef &node) {
-  td::TlStorerCalcLength calc_length;
-  store_for_network(*node, calc_length);
-  std::string buf(calc_length.get_length(), 0);
-  td::TlStorerUnsafe storer(td::MutableSlice(buf).ubegin());
-  store_for_network(*node, storer);
-  return buf;
-}
-
-td::Result<TrieRef> TrieNode::fetch_from_network(td::Slice data) {
-  td::TlParser parser(data);
-  TrieRef res;
-  parse_from_network(res, parser);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-  CHECK(res);
-  return res;
-}
-
-template <class StorerT, class F>
-td::Result<td::int64> store_for_snapshot(const TrieNode &node, StorerT &storer, const F &get_offset,
-                                         td::Slice snapshot) {
-  using td::store;
-  auto type = node.get_type();
-
-  if (type == TrieNodeType::Pruned) {
-    TRY_STATUS(node.try_load(snapshot));
-    type = node.get_type();
-    CHECK(type != TrieNodeType::Pruned);
-  }
-
-  if (type == TrieNodeType::Leaf) {
-    auto &leaf = node.get_leaf();
-    auto offset = get_offset();
-    store(type, storer);
-    store(leaf.key_suffix, storer);
-    store(leaf.value, storer);
-    return offset;
-  } else if (type == TrieNodeType::Inner) {
-    auto &inner = node.get_inner();
-    TRY_RESULT(left_offset, store_for_snapshot(*inner.left, storer, get_offset, snapshot));
-    TRY_RESULT(right_offset, store_for_snapshot(*inner.right, storer, get_offset, snapshot));
-    auto offset = get_offset();
-    store(type, storer);
-    store(inner.prefix, storer);
-    store(left_offset, storer);
-    store(inner.left->hash, storer);
-    store(right_offset, storer);
-    store(inner.right->hash, storer);
-    return offset;
-  } else if (type == TrieNodeType::Empty) {
-    auto offset = get_offset();
-    store(type, storer);
-    return offset;
-  } else {
-    UNREACHABLE();
-  }
-}
-
-td::Result<std::string> TrieNode::serialize_for_snapshot(const TrieRef &node, td::Slice snapshot) {
-  td::TlStorerCalcLength calc_length;
-  TRY_STATUS(store_for_snapshot(
-      *node, calc_length, [] { return td::int64{0}; }, snapshot));
-  std::string buf(calc_length.get_length() + 8, 0);
-  auto begin = td::MutableSlice(buf).ubegin();
-  td::TlStorerUnsafe storer(begin + 8);
-  auto get_offset = [&] {
-    return td::int64{storer.get_buf() - begin};
-  };
-  TRY_RESULT(root_offset, store_for_snapshot(*node, storer, get_offset, snapshot));
-  td::TlStorerUnsafe storer2(begin);
-  storer2.store_long(root_offset);
-  return buf;
-}
-
-td::Result<TrieNode> fetch_node_from_snapshot(td::Slice snapshot_slice, BitString &bs) {
-  td::TlParser parser(snapshot_slice);
-  using td::parse;
-  TrieNodeType type;
-  parse(type, parser);
-  if (type == TrieNodeType::Leaf) {
-    BitString key_suffix = fetch_bit_string(parser, bs);
-    std::string value;
-    parse(value, parser);
-    //parser.fetch_end();
-    TRY_STATUS(parser.get_status());
-    return TrieNode(std::move(key_suffix), std::move(value));
-  } else if (type == TrieNodeType::Inner) {
-    BitString prefix = fetch_bit_string(parser, bs);
-    td::int64 left_offset;
-    td::UInt256 left_hash;
-    parse(left_offset, parser);
-    parse(left_hash, parser);
-    td::int64 right_offset;
-    td::UInt256 right_hash;
-    parse(right_offset, parser);
-    parse(right_hash, parser);
-    //parser.fetch_end();
-    TRY_STATUS(parser.get_status());
-
-    auto left_bs = bs.substr(prefix.bit_length() + 1);
-    BitString right_bs;
-    right_bs.begin_bit_ = left_bs.begin_bit_;
-    right_bs.bits_size_ = left_bs.bits_size_;
-    auto left = std::make_shared<TrieNode>(left_hash, left_offset, std::move(left_bs));
-    auto right = std::make_shared<TrieNode>(right_hash, right_offset, std::move(right_bs));
-    return TrieNode(std::move(prefix), std::move(left), std::move(right));
-  } else if (type == TrieNodeType::Empty) {
-    return TrieNode();
-  }
-  return td::Status::Error("Failed to parse trie node");
-}
-
-td::Result<TrieRef> TrieNode::fetch_from_snapshot(td::Slice snapshot) {
-  td::TlParser parser(snapshot);
-  auto root_offset = static_cast<size_t>(parser.fetch_long());
-  TRY_STATUS(parser.get_status());
-  if (root_offset >= snapshot.size()) {
-    return td::Status::Error("Failed to parse");
-  }
-  auto bs = BitString(256);
-  TRY_RESULT(node, fetch_node_from_snapshot(snapshot.substr(root_offset), bs));
-  return std::make_shared<TrieNode>(std::move(node));
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/Trie.h b/third-party/td/td/tde2e/td/e2e/Trie.h
deleted file mode 100644
index 6c1246ebc0..0000000000
--- a/third-party/td/td/tde2e/td/e2e/Trie.h
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/BitString.h"
-#include "td/e2e/utils.h"
-
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-#include <memory>
-#include <tuple>
-#include <utility>
-#include <variant>
-
-namespace tde2e_core {
-
-enum class TrieNodeType : td::int32 { Empty, Leaf, Inner, Pruned };
-
-struct TrieNode;
-using TrieRef = std::shared_ptr<const TrieNode>;
-
-struct TrieNode {
-  td::UInt256 hash{};
-
-  struct Empty {};
-  struct Leaf {
-    BitString key_suffix;
-    std::string value;
-  };
-  struct Inner {
-    BitString prefix;
-    TrieRef left;
-    TrieRef right;
-  };
-  struct Pruned {
-    td::int64 offset;
-    BitString base_bit_string;
-  };
-  std::variant<Empty, Leaf, Inner, Pruned> data;
-
-  TrieNodeType get_type() const {
-    return static_cast<TrieNodeType>(data.index());
-  }
-
-  const Leaf &get_leaf() const {
-    return std::get<Leaf>(data);
-  }
-  const Inner &get_inner() const {
-    return std::get<Inner>(data);
-  }
-  const Pruned &get_pruned() const {
-    return std::get<Pruned>(data);
-  }
-
-  td::Status try_load(td::Slice snapshot) const;
-
-  TrieNode();
-  TrieNode(BitString key_suffix, std::string value);
-  TrieNode(BitString prefix, TrieRef left, TrieRef right);
-  explicit TrieNode(const td::UInt256 &hash_value);
-  TrieNode(const td::UInt256 &hash_value, td::int64 offset, BitString base_bit_string);
-  TrieNode(TrieNode &&) = default;
-  TrieNode &operator=(TrieNode &&) = default;
-  static TrieRef empty_node();
-
-  static td::Result<std::string> serialize_for_network(const TrieRef &node);
-  static td::Result<TrieRef> fetch_from_network(td::Slice data);
-  static td::Result<std::string> serialize_for_snapshot(const TrieRef &node, td::Slice snapshot);
-  static td::Result<TrieRef> fetch_from_snapshot(td::Slice snapshot);
-
- private:
-  td::UInt256 compute_hash() const;
-};
-
-td::Result<TrieRef> set(const TrieRef &n, BitString key, td::Slice value, td::Slice snapshot = {});
-td::Result<std::string> get(const TrieRef &n, const BitString &key, td::Slice snapshot = {});
-td::Result<TrieRef> generate_pruned_tree(const TrieRef &n, td::Span<td::Slice> keys, td::Slice snapshot = {});
-
-std::ostream &operator<<(std::ostream &os, const td::UInt256 &hash);
-void print_tree(const TrieRef &node, const std::string &prefix = "", bool is_root = true);
-
-BitString to_key(td::Slice key);
-inline td::Result<TrieRef> set(const TrieRef &n, td::Slice key, td::Slice value) {
-  return set(n, to_key(key), value);
-}
-inline td::Result<std::string> get(const TrieRef &n, td::Slice key, td::Slice snapshot = {}) {
-  return get(n, to_key(key), snapshot);
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/bip39.cpp b/third-party/td/td/tde2e/td/e2e/bip39.cpp
deleted file mode 100644
index 21f778a6bb..0000000000
--- a/third-party/td/td/tde2e/td/e2e/bip39.cpp
+++ /dev/null
@@ -1,2063 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/bip39.h"
-
-namespace tde2e_core {
-
-td::CSlice bip39_english() {
-  return R"abcd(abandon
-ability
-able
-about
-above
-absent
-absorb
-abstract
-absurd
-abuse
-access
-accident
-account
-accuse
-achieve
-acid
-acoustic
-acquire
-across
-act
-action
-actor
-actress
-actual
-adapt
-add
-addict
-address
-adjust
-admit
-adult
-advance
-advice
-aerobic
-affair
-afford
-afraid
-again
-age
-agent
-agree
-ahead
-aim
-air
-airport
-aisle
-alarm
-album
-alcohol
-alert
-alien
-all
-alley
-allow
-almost
-alone
-alpha
-already
-also
-alter
-always
-amateur
-amazing
-among
-amount
-amused
-analyst
-anchor
-ancient
-anger
-angle
-angry
-animal
-ankle
-announce
-annual
-another
-answer
-antenna
-antique
-anxiety
-any
-apart
-apology
-appear
-apple
-approve
-april
-arch
-arctic
-area
-arena
-argue
-arm
-armed
-armor
-army
-around
-arrange
-arrest
-arrive
-arrow
-art
-artefact
-artist
-artwork
-ask
-aspect
-assault
-asset
-assist
-assume
-asthma
-athlete
-atom
-attack
-attend
-attitude
-attract
-auction
-audit
-august
-aunt
-author
-auto
-autumn
-average
-avocado
-avoid
-awake
-aware
-away
-awesome
-awful
-awkward
-axis
-baby
-bachelor
-bacon
-badge
-bag
-balance
-balcony
-ball
-bamboo
-banana
-banner
-bar
-barely
-bargain
-barrel
-base
-basic
-basket
-battle
-beach
-bean
-beauty
-because
-become
-beef
-before
-begin
-behave
-behind
-believe
-below
-belt
-bench
-benefit
-best
-betray
-better
-between
-beyond
-bicycle
-bid
-bike
-bind
-biology
-bird
-birth
-bitter
-black
-blade
-blame
-blanket
-blast
-bleak
-bless
-blind
-blood
-blossom
-blouse
-blue
-blur
-blush
-board
-boat
-body
-boil
-bomb
-bone
-bonus
-book
-boost
-border
-boring
-borrow
-boss
-bottom
-bounce
-box
-boy
-bracket
-brain
-brand
-brass
-brave
-bread
-breeze
-brick
-bridge
-brief
-bright
-bring
-brisk
-broccoli
-broken
-bronze
-broom
-brother
-brown
-brush
-bubble
-buddy
-budget
-buffalo
-build
-bulb
-bulk
-bullet
-bundle
-bunker
-burden
-burger
-burst
-bus
-business
-busy
-butter
-buyer
-buzz
-cabbage
-cabin
-cable
-cactus
-cage
-cake
-call
-calm
-camera
-camp
-can
-canal
-cancel
-candy
-cannon
-canoe
-canvas
-canyon
-capable
-capital
-captain
-car
-carbon
-card
-cargo
-carpet
-carry
-cart
-case
-cash
-casino
-castle
-casual
-cat
-catalog
-catch
-category
-cattle
-caught
-cause
-caution
-cave
-ceiling
-celery
-cement
-census
-century
-cereal
-certain
-chair
-chalk
-champion
-change
-chaos
-chapter
-charge
-chase
-chat
-cheap
-check
-cheese
-chef
-cherry
-chest
-chicken
-chief
-child
-chimney
-choice
-choose
-chronic
-chuckle
-chunk
-churn
-cigar
-cinnamon
-circle
-citizen
-city
-civil
-claim
-clap
-clarify
-claw
-clay
-clean
-clerk
-clever
-click
-client
-cliff
-climb
-clinic
-clip
-clock
-clog
-close
-cloth
-cloud
-clown
-club
-clump
-cluster
-clutch
-coach
-coast
-coconut
-code
-coffee
-coil
-coin
-collect
-color
-column
-combine
-come
-comfort
-comic
-common
-company
-concert
-conduct
-confirm
-congress
-connect
-consider
-control
-convince
-cook
-cool
-copper
-copy
-coral
-core
-corn
-correct
-cost
-cotton
-couch
-country
-couple
-course
-cousin
-cover
-coyote
-crack
-cradle
-craft
-cram
-crane
-crash
-crater
-crawl
-crazy
-cream
-credit
-creek
-crew
-cricket
-crime
-crisp
-critic
-crop
-cross
-crouch
-crowd
-crucial
-cruel
-cruise
-crumble
-crunch
-crush
-cry
-crystal
-cube
-culture
-cup
-cupboard
-curious
-current
-curtain
-curve
-cushion
-custom
-cute
-cycle
-dad
-damage
-damp
-dance
-danger
-daring
-dash
-daughter
-dawn
-day
-deal
-debate
-debris
-decade
-december
-decide
-decline
-decorate
-decrease
-deer
-defense
-define
-defy
-degree
-delay
-deliver
-demand
-demise
-denial
-dentist
-deny
-depart
-depend
-deposit
-depth
-deputy
-derive
-describe
-desert
-design
-desk
-despair
-destroy
-detail
-detect
-develop
-device
-devote
-diagram
-dial
-diamond
-diary
-dice
-diesel
-diet
-differ
-digital
-dignity
-dilemma
-dinner
-dinosaur
-direct
-dirt
-disagree
-discover
-disease
-dish
-dismiss
-disorder
-display
-distance
-divert
-divide
-divorce
-dizzy
-doctor
-document
-dog
-doll
-dolphin
-domain
-donate
-donkey
-donor
-door
-dose
-double
-dove
-draft
-dragon
-drama
-drastic
-draw
-dream
-dress
-drift
-drill
-drink
-drip
-drive
-drop
-drum
-dry
-duck
-dumb
-dune
-during
-dust
-dutch
-duty
-dwarf
-dynamic
-eager
-eagle
-early
-earn
-earth
-easily
-east
-easy
-echo
-ecology
-economy
-edge
-edit
-educate
-effort
-egg
-eight
-either
-elbow
-elder
-electric
-elegant
-element
-elephant
-elevator
-elite
-else
-embark
-embody
-embrace
-emerge
-emotion
-employ
-empower
-empty
-enable
-enact
-end
-endless
-endorse
-enemy
-energy
-enforce
-engage
-engine
-enhance
-enjoy
-enlist
-enough
-enrich
-enroll
-ensure
-enter
-entire
-entry
-envelope
-episode
-equal
-equip
-era
-erase
-erode
-erosion
-error
-erupt
-escape
-essay
-essence
-estate
-eternal
-ethics
-evidence
-evil
-evoke
-evolve
-exact
-example
-excess
-exchange
-excite
-exclude
-excuse
-execute
-exercise
-exhaust
-exhibit
-exile
-exist
-exit
-exotic
-expand
-expect
-expire
-explain
-expose
-express
-extend
-extra
-eye
-eyebrow
-fabric
-face
-faculty
-fade
-faint
-faith
-fall
-false
-fame
-family
-famous
-fan
-fancy
-fantasy
-farm
-fashion
-fat
-fatal
-father
-fatigue
-fault
-favorite
-feature
-february
-federal
-fee
-feed
-feel
-female
-fence
-festival
-fetch
-fever
-few
-fiber
-fiction
-field
-figure
-file
-film
-filter
-final
-find
-fine
-finger
-finish
-fire
-firm
-first
-fiscal
-fish
-fit
-fitness
-fix
-flag
-flame
-flash
-flat
-flavor
-flee
-flight
-flip
-float
-flock
-floor
-flower
-fluid
-flush
-fly
-foam
-focus
-fog
-foil
-fold
-follow
-food
-foot
-force
-forest
-forget
-fork
-fortune
-forum
-forward
-fossil
-foster
-found
-fox
-fragile
-frame
-frequent
-fresh
-friend
-fringe
-frog
-front
-frost
-frown
-frozen
-fruit
-fuel
-fun
-funny
-furnace
-fury
-future
-gadget
-gain
-galaxy
-gallery
-game
-gap
-garage
-garbage
-garden
-garlic
-garment
-gas
-gasp
-gate
-gather
-gauge
-gaze
-general
-genius
-genre
-gentle
-genuine
-gesture
-ghost
-giant
-gift
-giggle
-ginger
-giraffe
-girl
-give
-glad
-glance
-glare
-glass
-glide
-glimpse
-globe
-gloom
-glory
-glove
-glow
-glue
-goat
-goddess
-gold
-good
-goose
-gorilla
-gospel
-gossip
-govern
-gown
-grab
-grace
-grain
-grant
-grape
-grass
-gravity
-great
-green
-grid
-grief
-grit
-grocery
-group
-grow
-grunt
-guard
-guess
-guide
-guilt
-guitar
-gun
-gym
-habit
-hair
-half
-hammer
-hamster
-hand
-happy
-harbor
-hard
-harsh
-harvest
-hat
-have
-hawk
-hazard
-head
-health
-heart
-heavy
-hedgehog
-height
-hello
-helmet
-help
-hen
-hero
-hidden
-high
-hill
-hint
-hip
-hire
-history
-hobby
-hockey
-hold
-hole
-holiday
-hollow
-home
-honey
-hood
-hope
-horn
-horror
-horse
-hospital
-host
-hotel
-hour
-hover
-hub
-huge
-human
-humble
-humor
-hundred
-hungry
-hunt
-hurdle
-hurry
-hurt
-husband
-hybrid
-ice
-icon
-idea
-identify
-idle
-ignore
-ill
-illegal
-illness
-image
-imitate
-immense
-immune
-impact
-impose
-improve
-impulse
-inch
-include
-income
-increase
-index
-indicate
-indoor
-industry
-infant
-inflict
-inform
-inhale
-inherit
-initial
-inject
-injury
-inmate
-inner
-innocent
-input
-inquiry
-insane
-insect
-inside
-inspire
-install
-intact
-interest
-into
-invest
-invite
-involve
-iron
-island
-isolate
-issue
-item
-ivory
-jacket
-jaguar
-jar
-jazz
-jealous
-jeans
-jelly
-jewel
-job
-join
-joke
-journey
-joy
-judge
-juice
-jump
-jungle
-junior
-junk
-just
-kangaroo
-keen
-keep
-ketchup
-key
-kick
-kid
-kidney
-kind
-kingdom
-kiss
-kit
-kitchen
-kite
-kitten
-kiwi
-knee
-knife
-knock
-know
-lab
-label
-labor
-ladder
-lady
-lake
-lamp
-language
-laptop
-large
-later
-latin
-laugh
-laundry
-lava
-law
-lawn
-lawsuit
-layer
-lazy
-leader
-leaf
-learn
-leave
-lecture
-left
-leg
-legal
-legend
-leisure
-lemon
-lend
-length
-lens
-leopard
-lesson
-letter
-level
-liar
-liberty
-library
-license
-life
-lift
-light
-like
-limb
-limit
-link
-lion
-liquid
-list
-little
-live
-lizard
-load
-loan
-lobster
-local
-lock
-logic
-lonely
-long
-loop
-lottery
-loud
-lounge
-love
-loyal
-lucky
-luggage
-lumber
-lunar
-lunch
-luxury
-lyrics
-machine
-mad
-magic
-magnet
-maid
-mail
-main
-major
-make
-mammal
-man
-manage
-mandate
-mango
-mansion
-manual
-maple
-marble
-march
-margin
-marine
-market
-marriage
-mask
-mass
-master
-match
-material
-math
-matrix
-matter
-maximum
-maze
-meadow
-mean
-measure
-meat
-mechanic
-medal
-media
-melody
-melt
-member
-memory
-mention
-menu
-mercy
-merge
-merit
-merry
-mesh
-message
-metal
-method
-middle
-midnight
-milk
-million
-mimic
-mind
-minimum
-minor
-minute
-miracle
-mirror
-misery
-miss
-mistake
-mix
-mixed
-mixture
-mobile
-model
-modify
-mom
-moment
-monitor
-monkey
-monster
-month
-moon
-moral
-more
-morning
-mosquito
-mother
-motion
-motor
-mountain
-mouse
-move
-movie
-much
-muffin
-mule
-multiply
-muscle
-museum
-mushroom
-music
-must
-mutual
-myself
-mystery
-myth
-naive
-name
-napkin
-narrow
-nasty
-nation
-nature
-near
-neck
-need
-negative
-neglect
-neither
-nephew
-nerve
-nest
-net
-network
-neutral
-never
-news
-next
-nice
-night
-noble
-noise
-nominee
-noodle
-normal
-north
-nose
-notable
-note
-nothing
-notice
-novel
-now
-nuclear
-number
-nurse
-nut
-oak
-obey
-object
-oblige
-obscure
-observe
-obtain
-obvious
-occur
-ocean
-october
-odor
-off
-offer
-office
-often
-oil
-okay
-old
-olive
-olympic
-omit
-once
-one
-onion
-online
-only
-open
-opera
-opinion
-oppose
-option
-orange
-orbit
-orchard
-order
-ordinary
-organ
-orient
-original
-orphan
-ostrich
-other
-outdoor
-outer
-output
-outside
-oval
-oven
-over
-own
-owner
-oxygen
-oyster
-ozone
-pact
-paddle
-page
-pair
-palace
-palm
-panda
-panel
-panic
-panther
-paper
-parade
-parent
-park
-parrot
-party
-pass
-patch
-path
-patient
-patrol
-pattern
-pause
-pave
-payment
-peace
-peanut
-pear
-peasant
-pelican
-pen
-penalty
-pencil
-people
-pepper
-perfect
-permit
-person
-pet
-phone
-photo
-phrase
-physical
-piano
-picnic
-picture
-piece
-pig
-pigeon
-pill
-pilot
-pink
-pioneer
-pipe
-pistol
-pitch
-pizza
-place
-planet
-plastic
-plate
-play
-please
-pledge
-pluck
-plug
-plunge
-poem
-poet
-point
-polar
-pole
-police
-pond
-pony
-pool
-popular
-portion
-position
-possible
-post
-potato
-pottery
-poverty
-powder
-power
-practice
-praise
-predict
-prefer
-prepare
-present
-pretty
-prevent
-price
-pride
-primary
-print
-priority
-prison
-private
-prize
-problem
-process
-produce
-profit
-program
-project
-promote
-proof
-property
-prosper
-protect
-proud
-provide
-public
-pudding
-pull
-pulp
-pulse
-pumpkin
-punch
-pupil
-puppy
-purchase
-purity
-purpose
-purse
-push
-put
-puzzle
-pyramid
-quality
-quantum
-quarter
-question
-quick
-quit
-quiz
-quote
-rabbit
-raccoon
-race
-rack
-radar
-radio
-rail
-rain
-raise
-rally
-ramp
-ranch
-random
-range
-rapid
-rare
-rate
-rather
-raven
-raw
-razor
-ready
-real
-reason
-rebel
-rebuild
-recall
-receive
-recipe
-record
-recycle
-reduce
-reflect
-reform
-refuse
-region
-regret
-regular
-reject
-relax
-release
-relief
-rely
-remain
-remember
-remind
-remove
-render
-renew
-rent
-reopen
-repair
-repeat
-replace
-report
-require
-rescue
-resemble
-resist
-resource
-response
-result
-retire
-retreat
-return
-reunion
-reveal
-review
-reward
-rhythm
-rib
-ribbon
-rice
-rich
-ride
-ridge
-rifle
-right
-rigid
-ring
-riot
-ripple
-risk
-ritual
-rival
-river
-road
-roast
-robot
-robust
-rocket
-romance
-roof
-rookie
-room
-rose
-rotate
-rough
-round
-route
-royal
-rubber
-rude
-rug
-rule
-run
-runway
-rural
-sad
-saddle
-sadness
-safe
-sail
-salad
-salmon
-salon
-salt
-salute
-same
-sample
-sand
-satisfy
-satoshi
-sauce
-sausage
-save
-say
-scale
-scan
-scare
-scatter
-scene
-scheme
-school
-science
-scissors
-scorpion
-scout
-scrap
-screen
-script
-scrub
-sea
-search
-season
-seat
-second
-secret
-section
-security
-seed
-seek
-segment
-select
-sell
-seminar
-senior
-sense
-sentence
-series
-service
-session
-settle
-setup
-seven
-shadow
-shaft
-shallow
-share
-shed
-shell
-sheriff
-shield
-shift
-shine
-ship
-shiver
-shock
-shoe
-shoot
-shop
-short
-shoulder
-shove
-shrimp
-shrug
-shuffle
-shy
-sibling
-sick
-side
-siege
-sight
-sign
-silent
-silk
-silly
-silver
-similar
-simple
-since
-sing
-siren
-sister
-situate
-six
-size
-skate
-sketch
-ski
-skill
-skin
-skirt
-skull
-slab
-slam
-sleep
-slender
-slice
-slide
-slight
-slim
-slogan
-slot
-slow
-slush
-small
-smart
-smile
-smoke
-smooth
-snack
-snake
-snap
-sniff
-snow
-soap
-soccer
-social
-sock
-soda
-soft
-solar
-soldier
-solid
-solution
-solve
-someone
-song
-soon
-sorry
-sort
-soul
-sound
-soup
-source
-south
-space
-spare
-spatial
-spawn
-speak
-special
-speed
-spell
-spend
-sphere
-spice
-spider
-spike
-spin
-spirit
-split
-spoil
-sponsor
-spoon
-sport
-spot
-spray
-spread
-spring
-spy
-square
-squeeze
-squirrel
-stable
-stadium
-staff
-stage
-stairs
-stamp
-stand
-start
-state
-stay
-steak
-steel
-stem
-step
-stereo
-stick
-still
-sting
-stock
-stomach
-stone
-stool
-story
-stove
-strategy
-street
-strike
-strong
-struggle
-student
-stuff
-stumble
-style
-subject
-submit
-subway
-success
-such
-sudden
-suffer
-sugar
-suggest
-suit
-summer
-sun
-sunny
-sunset
-super
-supply
-supreme
-sure
-surface
-surge
-surprise
-surround
-survey
-suspect
-sustain
-swallow
-swamp
-swap
-swarm
-swear
-sweet
-swift
-swim
-swing
-switch
-sword
-symbol
-symptom
-syrup
-system
-table
-tackle
-tag
-tail
-talent
-talk
-tank
-tape
-target
-task
-taste
-tattoo
-taxi
-teach
-team
-tell
-ten
-tenant
-tennis
-tent
-term
-test
-text
-thank
-that
-theme
-then
-theory
-there
-they
-thing
-this
-thought
-three
-thrive
-throw
-thumb
-thunder
-ticket
-tide
-tiger
-tilt
-timber
-time
-tiny
-tip
-tired
-tissue
-title
-toast
-tobacco
-today
-toddler
-toe
-together
-toilet
-token
-tomato
-tomorrow
-tone
-tongue
-tonight
-tool
-tooth
-top
-topic
-topple
-torch
-tornado
-tortoise
-toss
-total
-tourist
-toward
-tower
-town
-toy
-track
-trade
-traffic
-tragic
-train
-transfer
-trap
-trash
-travel
-tray
-treat
-tree
-trend
-trial
-tribe
-trick
-trigger
-trim
-trip
-trophy
-trouble
-truck
-true
-truly
-trumpet
-trust
-truth
-try
-tube
-tuition
-tumble
-tuna
-tunnel
-turkey
-turn
-turtle
-twelve
-twenty
-twice
-twin
-twist
-two
-type
-typical
-ugly
-umbrella
-unable
-unaware
-uncle
-uncover
-under
-undo
-unfair
-unfold
-unhappy
-uniform
-unique
-unit
-universe
-unknown
-unlock
-until
-unusual
-unveil
-update
-upgrade
-uphold
-upon
-upper
-upset
-urban
-urge
-usage
-use
-used
-useful
-useless
-usual
-utility
-vacant
-vacuum
-vague
-valid
-valley
-valve
-van
-vanish
-vapor
-various
-vast
-vault
-vehicle
-velvet
-vendor
-venture
-venue
-verb
-verify
-version
-very
-vessel
-veteran
-viable
-vibrant
-vicious
-victory
-video
-view
-village
-vintage
-violin
-virtual
-virus
-visa
-visit
-visual
-vital
-vivid
-vocal
-voice
-void
-volcano
-volume
-vote
-voyage
-wage
-wagon
-wait
-walk
-wall
-walnut
-want
-warfare
-warm
-warrior
-wash
-wasp
-waste
-water
-wave
-way
-wealth
-weapon
-wear
-weasel
-weather
-web
-wedding
-weekend
-weird
-welcome
-west
-wet
-whale
-what
-wheat
-wheel
-when
-where
-whip
-whisper
-wide
-width
-wife
-wild
-will
-win
-window
-wine
-wing
-wink
-winner
-winter
-wire
-wisdom
-wise
-wish
-witness
-wolf
-woman
-wonder
-wood
-wool
-word
-work
-world
-worry
-worth
-wrap
-wreck
-wrestle
-wrist
-write
-wrong
-yard
-year
-yellow
-you
-young
-youth
-zebra
-zero
-zone
-zoo
-)abcd";
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/bip39.h b/third-party/td/td/tde2e/td/e2e/bip39.h
deleted file mode 100644
index 3389fe5c35..0000000000
--- a/third-party/td/td/tde2e/td/e2e/bip39.h
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-
-namespace tde2e_core {
-
-td::CSlice bip39_english();
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/td/e2e/e2e_api.cpp b/third-party/td/td/tde2e/td/e2e/e2e_api.cpp
deleted file mode 100644
index 82f109c63a..0000000000
--- a/third-party/td/td/tde2e/td/e2e/e2e_api.cpp
+++ /dev/null
@@ -1,856 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/e2e_api.h"
-
-#include "td/e2e/Blockchain.h"
-#include "td/e2e/Call.h"
-#include "td/e2e/Container.h"
-#include "td/e2e/DecryptedKey.h"
-#include "td/e2e/EncryptedKey.h"
-#include "td/e2e/EncryptedStorage.h"
-#include "td/e2e/MessageEncryption.h"
-#include "td/e2e/Mnemonic.h"
-#include "td/e2e/QRHandshake.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/int_types.h"
-#include "td/utils/logging.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/Random.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/UInt.h"
-
-#include <memory>
-
-namespace tde2e_core {
-namespace api = tde2e_api;
-
-using SecretRef = SharedRef<td::SecureString>;
-using HandshakeBobRef = UniqueRef<QRHandshakeBob>;
-using HandshakeAliceRef = UniqueRef<QRHandshakeAlice>;
-using StorageRef = UniqueRef<EncryptedStorage>;
-using CallRef = UniqueRef<Call>;
-
-td::UInt256 to_hash(td::Slice tag, td::Slice serialization) {
-  auto res = MessageEncryption::hmac_sha512(tag, serialization);
-  td::UInt256 hash;
-  hash.as_mutable_slice().copy_from(res.as_slice().substr(0, 32));
-  return hash;
-}
-
-class KeyChain {
- public:
-  KeyChain() {
-    set_log_verbosity_level(1).ignore();
-  }
-
-  td::Result<api::Ok> set_log_verbosity_level(td::int32 new_verbosity_level) {
-    if (0 <= new_verbosity_level && new_verbosity_level <= VERBOSITY_NAME(NEVER)) {
-      SET_VERBOSITY_LEVEL(VERBOSITY_NAME(FATAL) + new_verbosity_level);
-      return api::Ok{};
-    }
-    return td::Status::Error("Wrong new verbosity level specified");
-  }
-  td::Result<api::PrivateKeyId> generate_private_key() {
-    TRY_RESULT(mnemonic, Mnemonic::create_new({}));
-    return from_words(mnemonic.get_words_string());
-  }
-  td::Result<api::PrivateKeyId> generate_dummy_key() {
-    auto hash = to_hash("dummy key", "...");
-    return container_.try_build<Key>(hash, [&]() -> td::Result<PrivateKeyWithMnemonic> {
-      td::SecureString key(32, 1);
-      return PrivateKeyWithMnemonic::from_private_key(PrivateKey::from_slice(key).move_as_ok(), {});
-    });
-  }
-  td::Result<api::PrivateKeyId> generate_temporary_private_key() {
-    TRY_RESULT(private_key, PrivateKey::generate());
-    auto hash = to_hash("temporary private key", private_key.to_public_key().to_u256().as_slice());
-    return container_.try_build<Key>(hash, [&]() -> td::Result<PrivateKeyWithMnemonic> {
-      return PrivateKeyWithMnemonic::from_private_key(private_key, {});
-    });
-  }
-
-  td::Result<api::SymmetricKeyId> derive_secret(api::PrivateKeyId key_id, td::Slice tag) {
-    TRY_RESULT(pk, to_private_key_with_mnemonic(key_id));
-    auto hash = to_hash(PSLICE() << "derive secret with tag: " << td::base64_encode(tag),
-                        pk.to_public_key().to_u256().as_slice());
-    return container_.try_build<Key>(hash, [&]() -> td::Result<td::SecureString> {
-      // TODO: this is probably wrong and should be changed
-      return MessageEncryption::hmac_sha512(pk.to_private_key().to_secure_string(), tag);
-    });
-  }
-
-  td::Result<api::PrivateKeyId> from_words(td::Slice words) {
-    auto hash = to_hash("private ed25519 key from menemonic", words);
-    return container_.try_build<Key>(hash, [&]() -> td::Result<PrivateKeyWithMnemonic> {
-      TRY_RESULT(mnemonic, Mnemonic::create(td::SecureString(words), td::SecureString("")));
-      TRY_RESULT(private_key, mnemonic_to_private_key(mnemonic));
-      return private_key;
-    });
-  }
-
-  td::Result<api::Bytes> to_encrypted_private_key(api::PrivateKeyId key_id, api::SymmetricKeyId secret_id) {
-    TRY_RESULT(pk, to_private_key_with_mnemonic(key_id));
-    TRY_RESULT(secret, to_secret_ref(secret_id));
-    auto decrypted_key =
-        DecryptedKey(td::transform(pk.words(), [](const auto &m) { return m.copy(); }), pk.to_private_key());
-    auto encrypted = decrypted_key.encrypt("tde2e private key", *secret);
-    return encrypted.encrypted_data.as_slice().str();
-  }
-
-  td::Result<api::PrivateKeyId> from_encrypted_private_key(td::Slice encrypted_private_key,
-                                                           api::SymmetricKeyId secret_id) {
-    TRY_RESULT(secret, to_secret_ref(secret_id));
-    auto hash = to_hash(PSLICE() << "encrypted private ed25519 key " << encrypted_private_key.str(), *secret);
-    return container_.try_build<Key>(hash, [&]() -> td::Result<PrivateKeyWithMnemonic> {
-      // WOW. empty public key. is it good?
-      auto encrypted_key = EncryptedKey{td::SecureString(encrypted_private_key), {}, secret->copy()};
-      TRY_RESULT(decrypted_key, encrypted_key.decrypt("tde2e private key", false));
-      return PrivateKeyWithMnemonic::from_private_key(decrypted_key.private_key,
-                                                      std::move(decrypted_key.mnemonic_words));
-    });
-  }
-
-  td::Result<api::Bytes> to_encrypted_private_key_internal(api::PrivateKeyId key_id, api::SymmetricKeyId secret_id) {
-    TRY_RESULT(pk, to_private_key_with_mnemonic(key_id));
-    TRY_RESULT(secret, to_secret_ref(secret_id));
-    return MessageEncryption::encrypt_data(pk.to_private_key().to_secure_string(), *secret).as_slice().str();
-  }
-
-  td::Result<api::PrivateKeyId> from_encrypted_private_key_internal(td::Slice encrypted_private_key,
-                                                                    api::SymmetricKeyId secret_id) {
-    TRY_RESULT(secret, to_secret_ref(secret_id));
-    auto hash = to_hash(PSLICE() << "encrypted private ed25519 key internal " << encrypted_private_key.str(), *secret);
-    return container_.try_build<Key>(hash, [&]() -> td::Result<PrivateKeyWithMnemonic> {
-      TRY_RESULT(raw_pk, MessageEncryption::decrypt_data(encrypted_private_key, *secret));
-      TRY_RESULT(pk, PrivateKey::from_slice(raw_pk));
-      return PrivateKeyWithMnemonic::from_private_key(pk, {});
-    });
-  }
-
-  td::Result<api::PublicKeyId> from_public_key(td::Slice public_key) {
-    TRY_RESULT(key, PublicKey::from_slice(public_key));
-    auto hash = to_hash("public ed25519 key", public_key);
-    return container_.try_build<Key>(hash, [&]() -> td::Result<PublicKey> { return std::move(key); });
-  }
-
-  td::Result<api::SymmetricKeyId> from_ecdh(api::PrivateKeyId private_key_id, api::PublicKeyId public_key_id) {
-    TRY_RESULT(public_key, to_public_key(public_key_id));
-    TRY_RESULT(private_key, to_private_key_with_mnemonic(private_key_id));
-    auto hash = to_hash("x25519 shared secret",
-                        public_key.to_u256().as_slice().str() + private_key.to_public_key().to_u256().as_slice().str());
-    return container_.try_build<Key>(hash, [&]() -> td::Result<td::SecureString> {
-      TRY_RESULT(shared_secret, private_key.to_private_key().compute_shared_secret(public_key));
-      return std::move(shared_secret);
-    });
-  }
-
-  td::Result<api::SymmetricKeyId> from_bytes(td::Slice secret) {
-    auto hash = to_hash("raw secret", secret);
-    return container_.try_build<Key>(hash, [&]() -> td::Result<td::SecureString> { return td::SecureString(secret); });
-  }
-  td::Result<api::SecureBytes> to_words(api::PrivateKeyId private_key_id) {
-    TRY_RESULT(private_key, to_private_key_with_mnemonic(private_key_id));
-    api::SecureBytes res;
-    auto words = private_key.words();
-    for (size_t i = 0; i < words.size(); ++i) {
-      if (i != 0) {
-        res += ' ';
-      }
-      res.append(words[i].data(), words[i].size());
-    }
-    return res;
-  }
-
-  td::Result<api::Int512> sign(api::PrivateKeyId key, td::Slice data) {
-    TRY_RESULT(private_key_ref, to_private_key_with_mnemonic(key));
-    TRY_RESULT(signature, private_key_ref.sign(td::Slice(data.data(), data.size())));
-    CHECK(signature.to_slice().size() == 64);
-    api::Int512 result;
-    td::MutableSlice(result.data(), result.size()).copy_from(signature.to_slice());
-    return result;
-  }
-
-  td::Status destroy(std::optional<api::AnyKeyId> o_key_id) {
-    return container_.destroy<Key>(o_key_id);
-  }
-
-  td::Result<api::EncryptedMessageForMany> encrypt_message_for_many(const std::vector<api::SymmetricKeyId> &key_ids,
-                                                                    td::Slice message) {
-    std::vector<SecretRef> secrets;
-    for (auto &key_id : key_ids) {
-      TRY_RESULT(secret, to_secret_ref(key_id));
-      secrets.emplace_back(std::move(secret));
-    }
-
-    td::SecureString one_time_secret(32);
-    td::Random::secure_bytes(one_time_secret.as_mutable_slice());
-    api::EncryptedMessageForMany res;
-    res.encrypted_message = MessageEncryption::encrypt_data(message, one_time_secret).as_slice().str();
-    for (auto &secret : secrets) {
-      TRY_RESULT(encrypted_header,
-                 MessageEncryption::encrypt_header(one_time_secret, res.encrypted_message, secret->as_slice()));
-      res.encrypted_headers.emplace_back(encrypted_header.as_slice().str());
-    }
-    return res;
-  }
-  td::Result<api::EncryptedMessageForMany> re_encrypt_message_for_many(api::SymmetricKeyId decrypt_key,
-                                                                       const std::vector<api::SymmetricKeyId> &key_ids,
-                                                                       td::Slice encrypted_header,
-                                                                       td::Slice encrypted_message) {
-    std::vector<SecretRef> secrets;
-    for (auto &key_id : key_ids) {
-      TRY_RESULT(secret, to_secret_ref(key_id));
-      secrets.emplace_back(std::move(secret));
-    }
-    TRY_RESULT(secret_ref, to_secret_ref(decrypt_key));
-    TRY_RESULT(header, MessageEncryption::decrypt_header(encrypted_header, encrypted_message, secret_ref->as_slice()));
-
-    api::EncryptedMessageForMany res;
-    for (auto &secret : secrets) {
-      TRY_RESULT(new_encrypted_header,
-                 MessageEncryption::encrypt_header(header, secret->as_slice(), encrypted_message));
-      res.encrypted_headers.emplace_back(new_encrypted_header.as_slice().str());
-    }
-    return res;
-  }
-
-  td::Result<api::SecureBytes> decrypt_message_for_many(api::SymmetricKeyId key_id, td::Slice encrypted_header,
-                                                        td::Slice encrypted_message) {
-    TRY_RESULT(secret, to_secret_ref(key_id));
-    TRY_RESULT(header, MessageEncryption::decrypt_header(encrypted_header, encrypted_message, secret->as_slice()));
-    TRY_RESULT(message, MessageEncryption::decrypt_data(encrypted_message, header));
-    return message.as_slice().str();
-  }
-
-  td::Result<api::SecureBytes> encrypt_message_for_one(api::SymmetricKeyId key_id, td::Slice message) {
-    TRY_RESULT(secret, to_secret_ref(key_id));
-    auto encrypted_message = MessageEncryption::encrypt_data(message, secret->as_slice());
-    return encrypted_message.as_slice().str();
-  }
-
-  td::Result<api::SecureBytes> decrypt_message_for_one(api::SymmetricKeyId key_id, td::Slice encrypted_message) {
-    TRY_RESULT(secret, to_secret_ref(key_id));
-    TRY_RESULT(message, MessageEncryption::decrypt_data(encrypted_message, secret->as_slice()));
-    return message.as_slice().str();
-  }
-
-  td::Result<api::HandshakeId> handshake_create_for_bob(api::UserId bob_user_id, api::PrivateKeyId bob_private_key_id) {
-    TRY_RESULT(private_key_ref, to_private_key_with_mnemonic(bob_private_key_id));
-    return container_.try_build<Handshake>({}, [&]() -> td::Result<QRHandshakeBob> {
-      return QRHandshakeBob::create(bob_user_id, private_key_ref.to_private_key());
-    });
-  }
-  td::Result<api::Bytes> handshake_bob_send_start(api::HandshakeId bob_handshake_id) {
-    TRY_RESULT(bob_handshake, to_handshake_bob_ref(bob_handshake_id));
-    return bob_handshake->generate_start();
-  }
-  td::Result<api::HandshakeId> handshake_create_for_alice(api::UserId alice_user_id,
-                                                          api::PrivateKeyId alice_private_key_id,
-                                                          api::UserId bob_user_id, td::Slice bob_public_key,
-                                                          td::Slice start) {
-    TRY_RESULT(private_key_ref, to_private_key_with_mnemonic(alice_private_key_id));
-    TRY_RESULT(bob_public_key_internal, PublicKey::from_slice(bob_public_key));
-    return container_.try_build<Handshake>({}, [&] {
-      return QRHandshakeAlice::create(alice_user_id, private_key_ref.to_private_key(), bob_user_id,
-                                      bob_public_key_internal, start.str());
-    });
-  }
-  td::Result<api::Bytes> handshake_alice_send_accept(api::HandshakeId alice_handshake_id) {
-    TRY_RESULT(alice_handshake, to_handshake_alice_ref(alice_handshake_id));
-    return alice_handshake->generate_accept().as_slice().str();
-  }
-
-  td::Result<api::Bytes> handshake_bob_receive_accept_send_finish(api::HandshakeId bob_handshake_id,
-                                                                  api::UserId alice_id, td::Slice alice_public_key,
-                                                                  td::Slice accept) {
-    TRY_RESULT(bob_handshake, to_handshake_bob_ref(bob_handshake_id));
-    TRY_RESULT(alice_public_key_internal, PublicKey::from_slice(alice_public_key));
-    TRY_RESULT(msg, bob_handshake->receive_accept(alice_id, alice_public_key_internal, accept.str()));
-    return msg.as_slice().str();
-  }
-
-  td::Result<api::Ok> handshake_alice_receive_finish(api::HandshakeId alice_handshake_id, td::Slice finish) {
-    TRY_RESULT(alice_handshake, to_handshake_alice_ref(alice_handshake_id));
-    TRY_STATUS(alice_handshake->receive_finish(finish));
-    return api::Ok();
-  }
-
-  td::Result<api::SymmetricKeyId> handshake_get_shared_key_id(api::HandshakeId handshake_id) {
-    TRY_RESULT(handshake, container_.get_unique<Handshake>(handshake_id));
-    TRY_RESULT(shared_secret, std::visit([&](auto &&v) { return v.shared_secret(); }, *handshake));
-    auto hash = to_hash("handshake shared_secret", shared_secret.as_slice());
-    return container_.try_build<Key>(hash, [&]() -> td::Result<td::SecureString> { return std::move(shared_secret); });
-  }
-
-  td::Result<api::Ok> handshake_destroy(std::optional<api::HandshakeId> o_handshake_id) {
-    TRY_STATUS(container_.destroy<Handshake>(o_handshake_id));
-    return api::Ok();
-  }
-
-  td::Result<api::Bytes> handshake_get_start_id(td::Slice start) {
-    auto hash = to_hash("handshake start id", start);
-    return hash.as_slice().str();
-  }
-  td::Result<api::LoginId> login_create_for_bob() {
-    auto bob_fake_id = 0;
-    auto bob_fake_pk = generate_dummy_key().move_as_ok();
-    return handshake_create_for_bob(bob_fake_id, bob_fake_pk);
-  }
-  td::Result<api::Bytes> login_bob_send_start(api::LoginId bob_login_id) {
-    TRY_RESULT(bob_handshake, to_handshake_bob_ref(bob_login_id));
-    return bob_handshake->generate_start();
-  }
-  td::Result<api::Bytes> login_create_for_alice(api::UserId alice_user_id, api::PrivateKeyId alice_private_key_id,
-                                                td::Slice start) {
-    auto bob_fake_id = 0;
-    auto bob_fake_pk = generate_dummy_key().move_as_ok();
-    TRY_RESULT(handshake_id,
-               handshake_create_for_alice(alice_user_id, alice_private_key_id, bob_fake_id,
-                                          to_public_key(bob_fake_pk).move_as_ok().to_secure_string(), start));
-    TRY_RESULT(shared_key_id, handshake_get_shared_key_id(handshake_id));
-    TRY_RESULT(encrypted_alice_pk, to_encrypted_private_key(alice_private_key_id, shared_key_id));
-    TRY_RESULT(accept, handshake_alice_send_accept(handshake_id));
-    return QRHandshakeAlice::serialize_login_import(accept, encrypted_alice_pk);
-  }
-
-  td::Result<api::PrivateKeyId> login_finish_for_bob(api::LoginId bob_login_id, api::UserId alice_user_id,
-                                                     const api::PublicKey &alice_public_key, td::Slice data) {
-    std::pair<std::string, std::string> accept_and_key;
-    {
-      TRY_RESULT(bob_handshake, to_handshake_bob_ref(bob_login_id));
-      TRY_RESULT_ASSIGN(accept_and_key, QRHandshakeAlice::deserialize_login_import(data));
-      TRY_RESULT(alice_public_key_internal, PublicKey::from_slice(alice_public_key));
-      TRY_RESULT(finish, bob_handshake->receive_accept(alice_user_id, alice_public_key_internal, accept_and_key.first));
-    }
-    TRY_RESULT(shared_key_id, handshake_get_shared_key_id(bob_login_id));
-    return from_encrypted_private_key(accept_and_key.second, shared_key_id);
-  }
-
-  api::Result<api::Ok> login_destroy(api::LoginId login_id) {
-    return handshake_destroy(login_id);
-  }
-  td::Result<api::Ok> login_destroy_all() {
-    return handshake_destroy({});
-  }
-  td::Result<api::StorageId> storage_create(api::PrivateKeyId key_id, td::Slice last_block) {
-    TRY_RESULT(private_key_ref, to_private_key_with_mnemonic(key_id));
-
-    TRY_RESULT(storage, EncryptedStorage::create(last_block, private_key_ref.to_private_key()));
-    return container_.emplace<EncryptedStorage>(std::move(storage));
-  }
-
-  td::Result<api::Ok> storage_destroy(std::optional<api::StorageId> o_storage_id) {
-    TRY_STATUS(container_.destroy<EncryptedStorage>(o_storage_id));
-    return api::Ok();
-  }
-
-  td::Result<api::Ok> call_destroy(std::optional<api::CallId> o_call_id) {
-    TRY_STATUS(container_.destroy<Call>(o_call_id));
-    return api::Ok();
-  }
-
-  template <class T>
-  td::Result<api::UpdateId> storage_update_contact(api::StorageId storage_id, api::PublicKeyId key,
-                                                   api::SignedEntry<T> signed_entry) {
-    TRY_RESULT(storage_ref, to_storage_ref(storage_id));
-    TRY_RESULT(public_key_ref, to_public_key(key));
-    return storage_ref->update(KeyContactByPublicKey{public_key_ref.to_u256()}, std::move(signed_entry));
-  }
-  template <class T>
-  td::Result<api::SignedEntry<T>> storage_sign_entry(api::PrivateKeyId key, api::Entry<T> entry) {
-    TRY_RESULT(private_key_ref, to_private_key_with_mnemonic(key));
-    return EncryptedStorage::sign_entry(private_key_ref.to_private_key(), std::move(entry));
-  }
-  td::Result<std::optional<api::Contact>> storage_get_contact(api::StorageId storage_id, api::PublicKeyId key) {
-    TRY_RESULT(storage_ref, to_storage_ref(storage_id));
-    TRY_RESULT(public_key_ref, to_public_key(key));
-    return storage_ref->get(KeyContactByPublicKey{public_key_ref.to_u256()}, false);
-  }
-  td::Result<std::optional<api::Contact>> storage_get_contact_optimistic(api::StorageId storage_id,
-                                                                         api::PublicKeyId key) {
-    TRY_RESULT(storage_ref, to_storage_ref(storage_id));
-    TRY_RESULT(public_key_ref, to_public_key(key));
-    return storage_ref->get(KeyContactByPublicKey{public_key_ref.to_u256()}, true);
-  }
-  td::Result<std::int64_t> storage_blockchain_height(api::StorageId storage_id) {
-    TRY_RESULT(storage_ref, to_storage_ref(storage_id));
-    return storage_ref->get_height();
-  }
-  td::Result<api::StorageUpdates> storage_blockchain_apply_block(api::StorageId storage_id, td::Slice block) {
-    TRY_RESULT(storage_ref, to_storage_ref(storage_id));
-    TRY_RESULT(updates, storage_ref->apply_block(block));
-    auto fixed_updates = td::transform(updates.updates, [&](auto update) {
-      auto public_key_id = from_public_key(update.first.public_key.as_slice()).move_as_ok();
-      return std::make_pair(public_key_id, std::move(update.second));
-    });
-    return api::StorageUpdates{std::move(fixed_updates)};
-  }
-  td::Result<api::Ok> storage_blockchain_add_proof(api::StorageId storage_id, td::Slice proof,
-                                                   td::Span<std::string> keys) {
-    TRY_RESULT(storage_ref, to_storage_ref(storage_id));
-    TRY_STATUS(storage_ref->add_proof(proof, keys));
-    return api::Ok();
-  }
-  td::Result<api::StorageBlockchainState> storage_get_blockchain_state(api::StorageId storage_id) {
-    TRY_RESULT(storage_ref, to_storage_ref(storage_id));
-    auto state = storage_ref->get_blockchain_state();
-    return api::StorageBlockchainState{state.next_block, state.need_proofs};
-  }
-
-  td::Result<GroupStateRef> to_group_state(const api::CallState &call_state) {
-    GroupState group_state;
-    group_state.external_permissions = GroupParticipantFlags::AddUsers | GroupParticipantFlags::RemoveUsers;
-    for (auto &participant : call_state.participants) {
-      TRY_RESULT(public_key, to_public_key(participant.public_key_id));
-      group_state.participants.push_back(
-          GroupParticipant{participant.user_id, participant.permissions & 3, public_key, 0});
-    }
-    return std::make_shared<GroupState>(std::move(group_state));
-  }
-  td::Result<api::CallState> to_call_state(const GroupState &group_state) {
-    api::CallState call_state;
-    for (auto &participant : group_state.participants) {
-      auto public_key_id = from_public_key(participant.public_key.to_secure_string()).move_as_ok();
-      call_state.participants.push_back(
-          api::CallParticipant{participant.user_id, public_key_id, participant.flags & 3});
-    }
-    return call_state;
-  }
-
-  td::Result<api::Bytes> call_create_zero_block(api::PrivateKeyId private_key_id, const api::CallState &initial_state) {
-    TRY_RESULT(private_key_ref, to_private_key_with_mnemonic(private_key_id));
-    TRY_RESULT(group_state, to_group_state(initial_state));
-    return Call::create_zero_block(private_key_ref.to_private_key(), group_state);
-  }
-  tde2e_api::Result<std::string> call_create_self_add_block(api::PrivateKeyId private_key_id, td::Slice previous_block,
-                                                            const tde2e_api::CallParticipant &self) {
-    TRY_RESULT(private_key_ref, to_private_key_with_mnemonic(private_key_id));
-    TRY_RESULT(public_key, to_public_key(self.public_key_id));
-    return Call::create_self_add_block(private_key_ref.to_private_key(), previous_block,
-                                       tde2e_core::GroupParticipant{self.user_id, 3, public_key, 0});
-  }
-
-  td::Result<api::CallId> call_create(api::UserId user_id, api::PrivateKeyId private_key_id, td::Slice last_block) {
-    TRY_RESULT(private_key_ref, to_private_key_with_mnemonic(private_key_id));
-
-    TRY_RESULT(call, Call::create(user_id, private_key_ref.to_private_key(), last_block));
-    return container_.emplace<Call>(std::move(call));
-  }
-  td::Result<api::Bytes> call_describe(api::CallId call_id) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    td::StringBuilder sb;
-    sb << *call_ref;
-    return sb.as_cslice().str();
-  }
-
-  td::Result<api::Bytes> call_create_change_state_block(api::CallId call_id, const api::CallState &new_state) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    TRY_RESULT(group_state, to_group_state(new_state));
-    return call_ref->build_change_state(group_state);
-  }
-  td::Result<api::SecureBytes> call_export_shared_key(api::CallId call_id) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    TRY_RESULT(shared_key, call_ref->shared_key());
-    return shared_key.as_slice().str();
-  }
-  td::Result<api::Bytes> call_encrypt(api::CallId call_id, api::CallChannelId channel_id, td::Slice message) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    return call_ref->encrypt(channel_id, message);
-  }
-  td::Result<api::SecureBytes> call_decrypt(api::CallId call_id, api::UserId user_id, api::CallChannelId channel_id,
-                                            td::Slice message) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    return call_ref->decrypt(user_id, channel_id, message);
-  }
-
-  td::Result<int> call_get_height(api::CallId call_id) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    return call_ref->get_height();
-  }
-  td::Result<api::CallState> call_apply_block(api::CallId call_id, td::Slice block) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    TRY_STATUS(call_ref->apply_block(block));
-    TRY_RESULT(group_state, call_ref->get_group_state());
-    return to_call_state(*group_state);
-  }
-
-  td::Result<api::CallState> call_get_state(api::CallId call_id) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    TRY_RESULT(group_state, call_ref->get_group_state());
-    return to_call_state(*group_state);
-  }
-
-  td::Result<api::CallVerificationState> call_get_verification_state(api::CallId call_id) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    return call_ref->get_verification_state();
-  }
-  td::Result<api::CallVerificationState> call_receive_inbound_message(api::CallId call_id, td::Slice message) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    return call_ref->receive_inbound_message(message);
-  }
-  td::Result<std::vector<std::string>> call_pull_outbound_messages(api::CallId call_id) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    return call_ref->pull_outbound_messages();
-  }
-
-  td::Result<api::CallVerificationWords> call_get_verification_words(api::CallId call_id) {
-    TRY_RESULT(call_ref, to_call_ref(call_id));
-    return call_ref->get_verification_words();
-  }
-  td::Result<api::PublicKey> to_public_key_api(api::AnyKeyId key_id) const {
-    TRY_RESULT(public_key, to_public_key(key_id));
-    return public_key.to_secure_string().as_slice().str();
-  }
-
- private:
-  using Key = std::variant<td::SecureString, PublicKey, PrivateKeyWithMnemonic>;
-  using Handshake = std::variant<QRHandshakeAlice, QRHandshakeBob>;
-  Container<TypeInfo<Key, false, true>, TypeInfo<Handshake, true, true>, TypeInfo<EncryptedStorage, true, false>,
-            TypeInfo<Call, true, true>>
-      container_;
-
-  td::Result<PrivateKeyWithMnemonic> mnemonic_to_private_key(const Mnemonic &mnemonic) {
-    auto decrypted_key = DecryptedKey(mnemonic);
-    auto private_key = PrivateKeyWithMnemonic::from_private_key(mnemonic.to_private_key(), mnemonic.get_words());
-    return private_key;
-  }
-
-  td::Result<PublicKey> to_public_key(api::AnyKeyId key_id) const {
-    TRY_RESULT(key, container_.get_shared<Key>(key_id));
-    return std::visit(
-        td::overloaded([&](const PrivateKeyWithMnemonic &pk) -> td::Result<PublicKey> { return pk.to_public_key(); },
-                       [&](const PublicKey &pk) -> td::Result<PublicKey> { return pk; },
-                       [](const auto &) -> td::Result<PublicKey> {
-                         return td::Status::Error(static_cast<int>(api::ErrorCode::InvalidInput),
-                                                  "key_id doesn't contain public key");
-                       }),
-        *key);
-  }
-
-  td::Result<PrivateKeyWithMnemonic> to_private_key_with_mnemonic(api::AnyKeyId key_id) const {
-    TRY_RESULT(key, container_.get_shared<Key>(key_id));
-    TRY_RESULT(ref, convert<PrivateKeyWithMnemonic>(std::move(key)));
-    return *ref;
-  }
-
-  td::Result<SecretRef> to_secret_ref(api::AnyKeyId key_id) const {
-    TRY_RESULT(key, container_.get_shared<Key>(key_id));
-    return convert<td::SecureString>(std::move(key));
-  }
-
-  td::Result<HandshakeAliceRef> to_handshake_alice_ref(api::HandshakeId alice_handshake_id) {
-    TRY_RESULT(handshake, container_.get_unique<Handshake>(alice_handshake_id));
-    return convert<QRHandshakeAlice>(std::move(handshake));
-  }
-  td::Result<HandshakeBobRef> to_handshake_bob_ref(api::HandshakeId bob_handshake_id) {
-    TRY_RESULT(handshake, container_.get_unique<Handshake>(bob_handshake_id));
-    return convert<QRHandshakeBob>(std::move(handshake));
-  }
-  td::Result<StorageRef> to_storage_ref(api::StorageId storage_id) {
-    return container_.get_unique<EncryptedStorage>(storage_id);
-  }
-  td::Result<CallRef> to_call_ref(api::CallId call_id) {
-    return container_.get_unique<Call>(call_id);
-  }
-};
-
-}  // namespace tde2e_core
-namespace tde2e_api {
-tde2e_core::KeyChain &get_default_keychain() {
-  static tde2e_core::KeyChain keychain;
-  return keychain;
-}
-td::Slice to_slice(std::string_view s) {
-  if (s.empty()) {
-    return td::Slice();
-  }
-  return td::Slice(s.data(), s.size());
-}
-Result<Ok> set_log_verbosity_level(int new_verbosity_level) {
-  return get_default_keychain().set_log_verbosity_level(new_verbosity_level);
-}
-Result<PrivateKeyId> key_generate_private_key() {
-  return get_default_keychain().generate_private_key();
-}
-Result<PrivateKeyId> key_generate_temporary_private_key() {
-  return get_default_keychain().generate_temporary_private_key();
-}
-Result<PrivateKeyId> key_derive_secret(PrivateKeyId key_id, Slice tag) {
-  return get_default_keychain().derive_secret(key_id, to_slice(tag));
-}
-Result<Bytes> key_to_encrypted_private_key(PrivateKeyId key_id, SymmetricKeyId secret_id) {
-  return get_default_keychain().to_encrypted_private_key(key_id, secret_id);
-}
-Result<PrivateKeyId> key_from_encrypted_private_key(Slice encrypted_key, SymmetricKeyId secret_id) {
-  return get_default_keychain().from_encrypted_private_key(to_slice(encrypted_key), secret_id);
-}
-Result<SymmetricKeyId> key_from_bytes(SecureSlice secret) {
-  return get_default_keychain().from_bytes(to_slice(secret));
-}
-Result<Bytes> key_to_encrypted_private_key_internal(PrivateKeyId key_id, SymmetricKeyId secret_id) {
-  return get_default_keychain().to_encrypted_private_key_internal(key_id, secret_id);
-}
-Result<PrivateKeyId> key_from_encrypted_private_key_internal(Slice encrypted_key, SymmetricKeyId secret_id) {
-  return get_default_keychain().from_encrypted_private_key_internal(to_slice(encrypted_key), secret_id);
-}
-
-Result<PublicKeyId> key_from_public_key(Slice public_key) {
-  return get_default_keychain().from_public_key(to_slice(public_key));
-}
-
-Result<PrivateKeyId> key_from_ecdh(PrivateKeyId key_id, PublicKeyId other_public_key_id) {
-  return get_default_keychain().from_ecdh(key_id, other_public_key_id);
-}
-
-Result<PublicKey> key_to_public_key(PrivateKeyId key_id) {
-  return get_default_keychain().to_public_key_api(key_id);
-}
-
-Result<SecureBytes> key_to_words(PrivateKeyId key_id) {
-  return get_default_keychain().to_words(key_id);
-}
-Result<PrivateKeyId> key_from_words(SecureSlice words) {
-  return get_default_keychain().from_words(to_slice(words));
-}
-Result<Int512> key_sign(PrivateKeyId key, Slice data) {
-  return get_default_keychain().sign(key, to_slice(data));
-}
-Result<Ok> key_destroy(AnyKeyId key_id) {
-  TRY_STATUS(get_default_keychain().destroy(key_id));
-  return Ok();
-}
-Result<Ok> key_destroy_all() {
-  TRY_STATUS(get_default_keychain().destroy({}));
-  return Ok();
-}
-
-Result<EncryptedMessageForMany> encrypt_message_for_many(const std::vector<SymmetricKeyId> &key_ids,
-                                                         SecureSlice message) {
-  return get_default_keychain().encrypt_message_for_many(std::move(key_ids), to_slice(message));
-}
-Result<SecureBytes> decrypt_message_for_many(SymmetricKeyId key_id, Slice encrypted_header, Slice encrypted_message) {
-  return get_default_keychain().decrypt_message_for_many(key_id, to_slice(encrypted_header),
-                                                         to_slice(encrypted_message));
-}
-Result<Bytes> encrypt_message_for_one(SymmetricKeyId key_id, SecureSlice message) {
-  return get_default_keychain().encrypt_message_for_one(key_id, to_slice(message));
-}
-Result<SecureBytes> decrypt_message_for_one(SymmetricKeyId key_id, Slice encrypted_message) {
-  return get_default_keychain().decrypt_message_for_one(key_id, to_slice(encrypted_message));
-}
-Result<EncryptedMessageForMany> re_encrypt_message_for_many(SymmetricKeyId decrypt_key_id,
-                                                            const std::vector<SymmetricKeyId> &encrypt_key_ids,
-                                                            Slice encrypted_header, Slice encrypted_message) {
-  return get_default_keychain().re_encrypt_message_for_many(decrypt_key_id, std::move(encrypt_key_ids),
-                                                            to_slice(encrypted_header), to_slice(encrypted_message));
-}
-
-Result<HandshakeId> handshake_create_for_bob(UserId bob_user_id, PrivateKeyId bob_private_key_id) {
-  return get_default_keychain().handshake_create_for_bob(bob_user_id, bob_private_key_id);
-}
-Result<Bytes> handshake_bob_send_start(HandshakeId bob_handshake_id) {
-  return get_default_keychain().handshake_bob_send_start(bob_handshake_id);
-}
-Result<HandshakeId> handshake_create_for_alice(UserId alice_user_id, PrivateKeyId alice_private_key_id,
-                                               UserId bob_user_id, const PublicKey &bob_public_key, Slice start) {
-  return get_default_keychain().handshake_create_for_alice(alice_user_id, alice_private_key_id, bob_user_id,
-                                                           to_slice(bob_public_key), to_slice(start));
-}
-Result<Bytes> handshake_alice_send_accept(HandshakeId alice_handshake_id) {
-  return get_default_keychain().handshake_alice_send_accept(alice_handshake_id);
-}
-Result<Bytes> handshake_bob_receive_accept_send_finish(HandshakeId bob_handshake_id, UserId alice_id,
-                                                       const PublicKey &alice_public_key, Slice accept) {
-  return get_default_keychain().handshake_bob_receive_accept_send_finish(bob_handshake_id, alice_id,
-                                                                         to_slice(alice_public_key), to_slice(accept));
-}
-Result<Bytes> handshake_start_id(Slice start) {
-  return get_default_keychain().handshake_get_start_id(to_slice(start));
-}
-Result<Ok> handshake_alice_receive_finish(HandshakeId alice_handshake_id, Slice finish) {
-  return get_default_keychain().handshake_alice_receive_finish(alice_handshake_id, to_slice(finish));
-}
-Result<SymmetricKeyId> handshake_get_shared_key_id(HandshakeId handshake_id) {
-  return get_default_keychain().handshake_get_shared_key_id(handshake_id);
-}
-Result<Ok> handshake_destroy(HandshakeId handshake_id) {
-  return get_default_keychain().handshake_destroy(handshake_id);
-}
-Result<Ok> handshake_destroy_all() {
-  return get_default_keychain().handshake_destroy({});
-}
-
-Result<LoginId> login_create_for_bob() {
-  return get_default_keychain().login_create_for_bob();
-}
-Result<Bytes> login_bob_send_start(LoginId bob_login_id) {
-  return get_default_keychain().login_bob_send_start(bob_login_id);
-}
-Result<Bytes> login_create_for_alice(UserId alice_user_id, PrivateKeyId alice_private_key_id, Slice start) {
-  return get_default_keychain().login_create_for_alice(alice_user_id, alice_private_key_id, to_slice(start));
-}
-Result<PrivateKeyId> login_finish_for_bob(LoginId bob_login_id, UserId alice_user_id, const PublicKey &alice_public_key,
-                                          Slice data) {
-  return get_default_keychain().login_finish_for_bob(bob_login_id, alice_user_id, alice_public_key, to_slice(data));
-}
-Result<Ok> login_destroy(LoginId login_id) {
-  return get_default_keychain().login_destroy(login_id);
-}
-Result<Ok> login_destroy_all() {
-  return get_default_keychain().login_destroy_all();
-}
-
-Result<StorageId> storage_create(PrivateKeyId key_id, Slice last_block) {
-  return get_default_keychain().storage_create(key_id, to_slice(last_block));
-}
-Result<Ok> storage_destroy(StorageId storage_id) {
-  return get_default_keychain().storage_destroy(storage_id);
-}
-Result<Ok> storage_destroy_all() {
-  return get_default_keychain().storage_destroy({});
-}
-template <class T>
-Result<UpdateId> storage_update_contact(StorageId storage_id, PublicKeyId key, SignedEntry<T> signed_entry) {
-  return get_default_keychain().storage_update_contact(storage_id, key, std::move(signed_entry));
-}
-template <class T>
-Result<SignedEntry<T>> storage_sign_entry(PrivateKeyId key, Entry<T> entry) {
-  return get_default_keychain().storage_sign_entry(key, std::move(entry));
-}
-Result<std::optional<Contact>> storage_get_contact(StorageId storage_id, PublicKeyId key) {
-  return get_default_keychain().storage_get_contact(storage_id, key);
-}
-Result<std::optional<Contact>> storage_get_contact_optimistic(StorageId storage_id, PublicKeyId key) {
-  return get_default_keychain().storage_get_contact_optimistic(storage_id, key);
-}
-Result<std::int64_t> storage_blockchain_height(StorageId storage_id) {
-  return get_default_keychain().storage_blockchain_height(storage_id);
-}
-Result<StorageUpdates> storage_blockchain_apply_block(StorageId storage_id, Slice block) {
-  return get_default_keychain().storage_blockchain_apply_block(storage_id, to_slice(block));
-}
-Result<Ok> storage_blockchain_add_proof(StorageId storage_id, Slice proof, const std::vector<std::string> &keys) {
-  return get_default_keychain().storage_blockchain_add_proof(storage_id, to_slice(proof), keys);
-}
-Result<StorageBlockchainState> storage_get_blockchain_state(StorageId storage_id) {
-  return get_default_keychain().storage_get_blockchain_state(storage_id);
-}
-
-Result<Bytes> call_create_zero_block(PrivateKeyId private_key_id, const CallState &initial_state) {
-  return get_default_keychain().call_create_zero_block(private_key_id, initial_state);
-}
-Result<Bytes> call_create_self_add_block(PrivateKeyId private_key_id, Slice previous_block,
-                                         const CallParticipant &self) {
-  return get_default_keychain().call_create_self_add_block(private_key_id, to_slice(previous_block), self);
-}
-Result<CallId> call_create(UserId user_id, PrivateKeyId private_key_id, Slice last_block) {
-  return get_default_keychain().call_create(user_id, private_key_id, to_slice(last_block));
-}
-Result<std::string> call_describe(CallId call_id) {
-  return get_default_keychain().call_describe(call_id);
-}
-Result<std::string> call_describe_block(Slice block_slice) {
-  bool is_server = tde2e_core::Blockchain::is_from_server(to_slice(block_slice));
-  TRY_RESULT(block_str, tde2e_core::Blockchain::from_any_to_local(std::string(block_slice)));
-  td::TlParser parser(block_str);
-  auto magic = parser.fetch_int();
-  if (magic != td::e2e_api::e2e_chain_block::ID) {
-    return td::Status::Error("Wrong magic");
-  }
-  auto block = td::e2e_api::e2e_chain_block::fetch(parser);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-  return PSTRING() << (is_server ? "Server:" : "Local:") << to_string(block);
-}
-Result<std::string> call_describe_message(Slice broadcast_slice) {
-  bool is_server = tde2e_core::Blockchain::is_from_server(to_slice(broadcast_slice));
-  TRY_RESULT(broadcast_str, tde2e_core::Blockchain::from_any_to_local(std::string(broadcast_slice)));
-
-  td::TlParser parser(broadcast_str);
-  auto broadcast = td::e2e_api::e2e_chain_GroupBroadcast::fetch(parser);
-  parser.fetch_end();
-  TRY_STATUS(parser.get_status());
-  return PSTRING() << (is_server ? "Server:" : "Local:") << to_string(broadcast);
-}
-Result<Bytes> call_create_change_state_block(CallId call_id, const CallState &new_state) {
-  return get_default_keychain().call_create_change_state_block(call_id, new_state);
-}
-Result<SecureBytes> call_export_shared_key(CallId call_id) {
-  return get_default_keychain().call_export_shared_key(call_id);
-}
-Result<Bytes> call_encrypt(CallId call_id, CallChannelId channel_id, SecureSlice message) {
-  return get_default_keychain().call_encrypt(call_id, channel_id, to_slice(message));
-}
-Result<SecureBytes> call_decrypt(CallId call_id, UserId user_id, CallChannelId channel_id, Slice message) {
-  return get_default_keychain().call_decrypt(call_id, user_id, channel_id, to_slice(message));
-}
-Result<int> call_get_height(CallId call_id) {
-  return get_default_keychain().call_get_height(call_id);
-}
-Result<CallState> call_apply_block(CallId call_id, Slice block) {
-  return get_default_keychain().call_apply_block(call_id, to_slice(block));
-}
-Result<CallState> call_get_state(CallId call_id) {
-  return get_default_keychain().call_get_state(call_id);
-}
-Result<CallVerificationState> call_get_verification_state(CallId call_id) {
-  return get_default_keychain().call_get_verification_state(call_id);
-}
-Result<CallVerificationState> call_receive_inbound_message(CallId call_id, Slice message) {
-  return get_default_keychain().call_receive_inbound_message(call_id, to_slice(message));
-}
-Result<std::vector<Bytes>> call_pull_outbound_messages(CallId call_id) {
-  return get_default_keychain().call_pull_outbound_messages(call_id);
-}
-
-Result<CallVerificationWords> call_get_verification_words(CallId call_id) {
-  return get_default_keychain().call_get_verification_words(call_id);
-}
-Result<Ok> call_destroy(CallId call_id) {
-  return get_default_keychain().call_destroy(call_id);
-}
-Result<Ok> call_destroy_all() {
-  return get_default_keychain().call_destroy({});
-}
-
-// instantiations of templates
-template Result<UpdateId> storage_update_contact<UserId>(StorageId storage_id, PublicKeyId key,
-                                                         SignedEntry<UserId> signed_entry);
-
-template Result<SignedEntry<UserId>> storage_sign_entry<UserId>(PrivateKeyId key, Entry<UserId> entry);
-
-template Result<UpdateId> storage_update_contact<Name>(StorageId storage_id, PublicKeyId key,
-                                                       SignedEntry<Name> signed_entry);
-
-template Result<SignedEntry<Name>> storage_sign_entry<Name>(PrivateKeyId key, Entry<Name> entry);
-
-template Result<UpdateId> storage_update_contact<PhoneNumber>(StorageId storage_id, PublicKeyId key,
-                                                              SignedEntry<PhoneNumber> signed_entry);
-
-template Result<SignedEntry<PhoneNumber>> storage_sign_entry<PhoneNumber>(PrivateKeyId key, Entry<PhoneNumber> entry);
-
-template Result<UpdateId> storage_update_contact<EmojiNonces>(StorageId storage_id, PublicKeyId key,
-                                                              SignedEntry<EmojiNonces> signed_entry);
-
-template Result<SignedEntry<EmojiNonces>> storage_sign_entry<EmojiNonces>(PrivateKeyId key, Entry<EmojiNonces> entry);
-
-template Result<UpdateId> storage_update_contact<ContactState>(StorageId storage_id, PublicKeyId key,
-                                                               SignedEntry<ContactState> signed_entry);
-
-template Result<SignedEntry<ContactState>> storage_sign_entry<ContactState>(PrivateKeyId key,
-                                                                            Entry<ContactState> entry);
-
-}  // namespace tde2e_api
diff --git a/third-party/td/td/tde2e/td/e2e/e2e_api.h b/third-party/td/td/tde2e/td/e2e/e2e_api.h
deleted file mode 100644
index 29b2a19b4a..0000000000
--- a/third-party/td/td/tde2e/td/e2e/e2e_api.h
+++ /dev/null
@@ -1,335 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/e2e_errors.h"
-
-#include <array>
-#include <cstdint>
-#include <optional>
-#include <string>
-#include <tuple>
-#include <utility>
-#include <variant>
-#include <vector>
-
-namespace td {
-template <class T>
-class Result;
-class Status;
-}  // namespace td
-
-namespace tde2e_api {
-//
-//  Result and Error helper classes
-//
-
-struct Error {
-  ErrorCode code;
-  std::string message;
-};
-
-template <typename T>
-class Result {
- public:
-  Result(const T &value) : data_(value) {
-  }
-  Result(T &&value) : data_(std::move(value)) {
-  }
-
-  Result(const Error &error) : data_(error) {
-  }
-  Result(Error &&error) : data_(std::move(error)) {
-  }
-
-  Result(td::Result<T> &&value);
-  Result(td::Status &&status);
-
-  // Check if the result is a success
-  bool is_ok() const {
-    return std::holds_alternative<T>(data_);
-  }
-
-  T &value() {
-    return std::get<T>(data_);
-  }
-  const T &value() const {
-    return std::get<T>(data_);
-  }
-
-  Error &error() {
-    return std::get<Error>(data_);
-  }
-  const Error &error() const {
-    return std::get<Error>(data_);
-  }
-
- private:
-  std::variant<T, Error> data_;
-};
-
-//
-//                  Encryption
-//
-
-using Int256 = std::array<unsigned char, 32>;
-using Int512 = std::array<unsigned char, 64>;
-//TODO: strong typed ids
-using PublicKey = std::string;
-using HandshakeId = std::int64_t;
-using LoginId = std::int64_t;
-using UserId = std::int64_t;
-using AnyKeyId = std::int64_t;
-using PrivateKeyId = std::int64_t;
-using PublicKeyId = std::int64_t;
-using SymmetricKeyId = std::int64_t;
-using Bytes = std::string;
-using SecureBytes = std::string;
-using Slice = std::string_view;
-using SecureSlice = std::string_view;
-struct Ok {};
-
-struct EncryptedMessageForMany {
-  std::vector<std::string> encrypted_headers;
-  std::string encrypted_message;
-};
-
-Result<Ok> set_log_verbosity_level(int level);
-
-// Keys management
-// private keys will stay inside the library when it is possible
-// all keys are stored only in memory and should be created or imported before usage
-Result<PrivateKeyId> key_generate_private_key();
-Result<PrivateKeyId> key_generate_temporary_private_key();
-Result<SymmetricKeyId> key_derive_secret(PrivateKeyId key_id, Slice tag);
-Result<SymmetricKeyId> key_from_bytes(SecureSlice secret);
-Result<Bytes> key_to_encrypted_private_key(PrivateKeyId key_id, SymmetricKeyId secret_id);
-Result<PrivateKeyId> key_from_encrypted_private_key(Slice encrypted_key, SymmetricKeyId secret_id);
-Result<PublicKeyId> key_from_public_key(Slice public_key);
-Result<SymmetricKeyId> key_from_ecdh(PrivateKeyId key_id, PublicKeyId other_public_key_id);
-Result<PublicKey> key_to_public_key(PrivateKeyId key_id);
-Result<SecureBytes> key_to_words(PrivateKeyId key_id);
-Result<PrivateKeyId> key_from_words(SecureSlice words);
-Result<Int512> key_sign(PrivateKeyId key, Slice data);
-Result<Ok> key_destroy(AnyKeyId key_id);
-Result<Ok> key_destroy_all();
-
-// Used to encrypt key between processes, secret_id must be generated with key_from_ecdh
-Result<Bytes> key_to_encrypted_private_key_internal(PrivateKeyId key_id, SymmetricKeyId secret_id);
-Result<PrivateKeyId> key_from_encrypted_private_key_internal(Slice encrypted_key, SymmetricKeyId secret_id);
-
-Result<EncryptedMessageForMany> encrypt_message_for_many(const std::vector<SymmetricKeyId> &key_ids,
-                                                         SecureSlice message);
-// keeps encrypted_message empty in result
-Result<EncryptedMessageForMany> re_encrypt_message_for_many(SymmetricKeyId decrypt_key_id,
-                                                            const std::vector<SymmetricKeyId> &encrypt_key_ids,
-                                                            Slice encrypted_header, Slice encrypted_message);
-Result<SecureBytes> decrypt_message_for_many(SymmetricKeyId key_id, Slice encrypted_header, Slice encrypted_message);
-Result<Bytes> encrypt_message_for_one(SymmetricKeyId key_id, SecureSlice message);
-Result<SecureBytes> decrypt_message_for_one(SymmetricKeyId key_id, Slice encrypted_message);
-
-// Utilities for secret key verification/transfer via qr (or any other alternative channel)
-// Requires:
-//  - alternative channel to reliably transfer 'start' message from Bob to Alice (scanning QR is such channel)
-//
-// Alice:
-//   - knows shared secret right after the handshake creation
-//   - Bob's secret key is verified after finish is received
-//
-// Bob:
-//   - knows shared secret right after accept is received
-//   - Alice's secret key is verified after accept is received
-//
-// Use cases:
-//  - Transfer of the key from old device to the new device
-//  - Verification of other person's public key
-//  - Contact sharing
-//
-Result<HandshakeId> handshake_create_for_bob(UserId bob_user_id, PrivateKeyId bob_private_key_id);
-Result<HandshakeId> handshake_create_for_alice(UserId alice_user_id, PrivateKeyId alice_private_key_id,
-                                               UserId bob_user_id, const PublicKey &bob_public_key, Slice start);
-
-Result<Bytes> handshake_bob_send_start(HandshakeId bob_handshake_id);
-Result<Bytes> handshake_alice_send_accept(HandshakeId alice_handshake_id);
-Result<Bytes> handshake_bob_receive_accept_send_finish(HandshakeId bob_handshake_id, UserId alice_id,
-                                                       const PublicKey &alice_public_key, Slice accept);
-Result<Ok> handshake_alice_receive_finish(HandshakeId alice_handshake_id, Slice finish);
-Result<SymmetricKeyId> handshake_get_shared_key_id(HandshakeId handshake_id);
-Result<Ok> handshake_destroy(HandshakeId handshake_id);
-Result<Ok> handshake_destroy_all();
-
-// Helper to get QR-code identifier
-Result<Bytes> handshake_start_id(Slice start);
-
-// There is wrapper for login
-Result<LoginId> login_create_for_bob();
-Result<Bytes> login_bob_send_start(LoginId bob_login_id);
-Result<Bytes> login_create_for_alice(UserId alice_user_id, PrivateKeyId alice_private_key_id, Slice start);
-Result<PrivateKeyId> login_finish_for_bob(LoginId bob_login_id, UserId alice_user_id, const PublicKey &alice_public_key,
-                                          Slice data);
-Result<Ok> login_destroy(LoginId login_id);
-Result<Ok> login_destroy_all();
-
-// Personal info
-// TODO: UserId
-
-// 1. Each entry stored and signed separately
-// 2. Signature is never stored, but always is verified
-// 3. It should be possible to save data without signature (but it can't override data with signature)
-// 4. We should keep source of entry. Our, Server, Contact+Ts
-// 5. We must keep is_contact flag.
-
-template <class T>
-struct Entry {
-  enum Source { Self, Server, Contact };
-  Source source;
-  std::uint32_t timestamp;
-  T value;
-
-  Entry() : source(Self), timestamp(0), value() {
-  }
-  Entry(Source source, std::uint32_t timestamp, T &&value)
-      : source(source), timestamp(timestamp), value(std::move(value)) {
-  }
-};
-
-template <class T>
-struct SignedEntry {
-  Int512 signature;
-  std::uint32_t timestamp{0};
-  T value;
-};
-
-struct Name {
-  std::string first_name;
-  std::string last_name;
-};
-
-struct PhoneNumber {
-  std::string phone_number;
-};
-
-struct EmojiNonces {
-  std::optional<Int256> self_nonce;
-  std::optional<Int256> contact_nonce_hash;
-  std::optional<Int256> contact_nonce;
-};
-
-struct ContactState {
-  enum State { Unknown, Contact, NotContact };
-  State state{Unknown};
-
-  ContactState() = default;
-
-  explicit ContactState(State state) : state(state) {
-  }
-};
-
-struct Contact {
-  // Each contact has both public_key and user_id
-  // how it is stored internally is not clients library user's concern
-  std::uint32_t generation{0};
-
-  // we always have public key. Essentially contact is defined by its public key
-  PublicKeyId public_key{};
-
-  // Personal data, signed by contact. If it is not signed, it has no relations to this public key
-  std::optional<Entry<UserId>> o_user_id;
-  std::optional<Entry<Name>> o_name;
-  std::optional<Entry<PhoneNumber>> o_phone_number;
-
-  // Personal data save by user_itself
-  // It always exists and it always given but we keep timestamp just in case
-  Entry<EmojiNonces> emoji_nonces;
-  Entry<ContactState> contact_state;
-};
-
-// library can't enforce persistency of changes, because it has no persistent state.
-// so it is client's responsibility to ensure that each change will be eventually saved to the server
-// NB: it is unclear how protect ourself from server ignoring our queries.
-
-using StorageId = std::int64_t;
-using UpdateId = std::int64_t;
-
-struct StorageBlockchainState {
-  std::string next_suggested_block;
-  std::vector<std::string> required_proofs;
-};
-struct StorageUpdates {
-  std::vector<std::pair<PublicKeyId, std::optional<Contact>>> updates;
-};
-
-Result<StorageId> storage_create(PrivateKeyId key_id, Slice last_block);
-Result<Ok> storage_destroy(StorageId storage_id);
-Result<Ok> storage_destroy_all();
-
-template <class T>
-Result<UpdateId> storage_update_contact(StorageId storage_id, PublicKeyId key, SignedEntry<T> signed_entry);
-template <class T>
-Result<SignedEntry<T>> storage_sign_entry(PrivateKeyId key, Entry<T> entry);
-
-Result<std::optional<Contact>> storage_get_contact(StorageId storage_id, PublicKeyId key);
-Result<std::optional<Contact>> storage_get_contact_optimistic(StorageId storage_id, PublicKeyId key);
-
-Result<std::int64_t> storage_blockchain_height(StorageId storage_id);
-Result<StorageUpdates> storage_blockchain_apply_block(StorageId storage_id, Slice block);
-Result<Ok> storage_blockchain_add_proof(StorageId storage_id, Slice proof, const std::vector<std::string> &keys);
-
-Result<StorageBlockchainState> storage_get_blockchain_state(StorageId);
-
-using CallId = std::int64_t;
-using CallChannelId = std::int32_t;
-struct CallParticipant {
-  UserId user_id;
-  PublicKeyId public_key_id;
-  int permissions{};
-};
-
-struct CallState {
-  int height{};
-  std::vector<CallParticipant> participants;
-};
-
-Result<Bytes> call_create_zero_block(PrivateKeyId private_key_id, const CallState &initial_state);
-Result<Bytes> call_create_self_add_block(PrivateKeyId private_key_id, Slice previous_block,
-                                         const CallParticipant &self);
-Result<CallId> call_create(UserId user_id, PrivateKeyId private_key_id, Slice last_block);
-
-Result<std::string> call_describe(CallId call);
-Result<std::string> call_describe_block(Slice block);
-Result<std::string> call_describe_message(Slice message);
-
-Result<Bytes> call_create_change_state_block(CallId call_id, const CallState &new_state);
-Result<Bytes> call_encrypt(CallId call_id, CallChannelId channel_id, SecureSlice message);
-Result<SecureBytes> call_decrypt(CallId call_id, UserId user_id, CallChannelId channel_id, Slice message);
-
-Result<int> call_get_height(CallId call_id);
-Result<CallState> call_apply_block(CallId call_id, Slice block);
-
-Result<CallState> call_get_state(CallId call_id);
-
-struct CallVerificationState {
-  int height{};
-  std::optional<Bytes> emoji_hash;
-};
-Result<CallVerificationState> call_get_verification_state(CallId call_id);
-Result<CallVerificationState> call_receive_inbound_message(CallId call_id, Slice message);
-
-// should be called after:
-//   - creation
-//   - call_apply_block
-//   - call_receive_inbound_messages
-Result<std::vector<Bytes>> call_pull_outbound_messages(CallId call_id);
-
-struct CallVerificationWords {
-  int height{};
-  std::vector<std::string> words;
-};
-Result<CallVerificationWords> call_get_verification_words(CallId call_id);
-Result<Ok> call_destroy(CallId call_id);
-Result<Ok> call_destroy_all();
-}  // namespace tde2e_api
diff --git a/third-party/td/td/tde2e/td/e2e/e2e_errors.h b/third-party/td/td/tde2e/td/e2e/e2e_errors.h
deleted file mode 100644
index 6863114182..0000000000
--- a/third-party/td/td/tde2e/td/e2e/e2e_errors.h
+++ /dev/null
@@ -1,102 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <string_view>
-
-namespace tde2e_api {
-
-enum class ErrorCode : int {
-  UnknownError = 100,
-  Any = 101,
-  InvalidInput = 102,
-  InvalidKeyId = 103,
-  InvalidId = 104,
-  InvalidBlock = 200,
-  InvalidBlock_NoChanges = 201,
-  InvalidBlock_InvalidSignature = 202,
-  InvalidBlock_HashMismatch = 203,
-  InvalidBlock_HeightMismatch = 204,
-  InvalidBlock_InvalidStateProof_Group = 205,
-  InvalidBlock_InvalidStateProof_Secret = 206,
-  InvalidBlock_NoPermissions = 207,
-  InvalidBlock_InvalidGroupState = 208,
-  InvalidCallGroupState_NotParticipant = 300,
-  InvalidCallGroupState_WrongUserId = 301,
-  Decrypt_UnknownEpoch = 400,
-  Encrypt_UnknownEpoch = 401,
-  InvalidBroadcast_InFuture = 500,
-  InvalidBroadcast_NotInCommit = 501,
-  InvalidBroadcast_NotInReveal = 502,
-  InvalidBroadcast_UnknownUserId = 503,
-  InvalidBroadcast_AlreadyApplied = 504,
-  InvalidBroadcast_InvalidReveal = 505,
-  InvalidBroadcast_InvalidBlockHash = 506,
-  InvalidCallChannelId = 600,
-  CallFailed = 601
-};
-inline std::string_view error_string(ErrorCode error_code) {
-  switch (error_code) {
-    case ErrorCode::Any:
-      return "";
-    case ErrorCode::UnknownError:
-      return "UNKNOWN_ERROR";
-    case ErrorCode::InvalidInput:
-      return "INVALID_INPUT";
-    case ErrorCode::InvalidKeyId:
-      return "INVALID_KEY_ID";
-    case ErrorCode::InvalidId:
-      return "INVALID_ID";
-    case ErrorCode::InvalidBlock:
-      return "INVALID_BLOCK";
-    case ErrorCode::InvalidBlock_NoChanges:
-      return "INVALID_BLOCK__NO_CHANGES";
-    case ErrorCode::InvalidBlock_InvalidSignature:
-      return "INVALID_BLOCK__INVALID_SIGNATURE";
-    case ErrorCode::InvalidBlock_HashMismatch:
-      return "INVALID_BLOCK__HASH_MISMATCH";
-    case ErrorCode::InvalidBlock_HeightMismatch:
-      return "INVALID_BLOCK__HEIGHT_MISMATCH";
-    case ErrorCode::InvalidBlock_InvalidStateProof_Group:
-      return "INVALID_BLOCK__INVALID_STATE_PROOF__GROUP";
-    case ErrorCode::InvalidBlock_InvalidStateProof_Secret:
-      return "INVALID_BLOCK__INVALID_STATE_PROOF__SECRET";
-    case ErrorCode::InvalidBlock_InvalidGroupState:
-      return "INVALID_BLOCK__INVALID_GROUP_STATE";
-    case ErrorCode::InvalidBlock_NoPermissions:
-      return "INVALID_BLOCK__NO_PERMISSIONS";
-    case ErrorCode::InvalidCallGroupState_NotParticipant:
-      return "INVALID_CALL_GROUP_STATE__NOT_PARTICIPANT";
-    case ErrorCode::InvalidCallGroupState_WrongUserId:
-      return "INVALID_CALL_GROUP_STATE__WRONG_USER_ID";
-    case ErrorCode::Decrypt_UnknownEpoch:
-      return "DECRYPT__UNKNOWN_EPOCH";
-    case ErrorCode::Encrypt_UnknownEpoch:
-      return "ENCRYPT__UNKNOWN_EPOCH";
-    case ErrorCode::InvalidBroadcast_InFuture:
-      return "INVALID_BROADCAST__IN_FUTURE";
-    case ErrorCode::InvalidBroadcast_NotInCommit:
-      return "INVALID_BROADCAST__NOT_IN_COMMIT";
-    case ErrorCode::InvalidBroadcast_NotInReveal:
-      return "INVALID_BROADCAST__NOT_IN_REVEAL";
-    case ErrorCode::InvalidBroadcast_UnknownUserId:
-      return "INVALID_BROADCAST__UNKNOWN_USER_ID";
-    case ErrorCode::InvalidBroadcast_AlreadyApplied:
-      return "INVALID_BROADCAST__ALREADY_APPLIED";
-    case ErrorCode::InvalidBroadcast_InvalidReveal:
-      return "INVALID_BROADCAST__INVALID_REVEAL";
-    case ErrorCode::InvalidBroadcast_InvalidBlockHash:
-      return "INVALID_BROADCAST__INVALID_BLOCK_HASH";
-    case ErrorCode::CallFailed:
-      return "CALL_FAILED";
-    case ErrorCode::InvalidCallChannelId:
-      return "INVALID_CALL_CHANNEL_ID";
-  }
-  return "UNKNOWN_ERROR";
-}
-
-}  // namespace tde2e_api
diff --git a/third-party/td/td/tde2e/td/e2e/encryption_test.py b/third-party/td/td/tde2e/td/e2e/encryption_test.py
deleted file mode 100644
index f4eee9bf11..0000000000
--- a/third-party/td/td/tde2e/td/e2e/encryption_test.py
+++ /dev/null
@@ -1,279 +0,0 @@
-import os
-from Crypto.Cipher import AES
-from Crypto.Hash import SHA256, HMAC, SHA512
-import binascii
-import random
-
-def generate_deterministic_padding(data_size, min_padding):
-    # Calculate padding size to make total size multiple of 16
-    padding_size = ((min_padding + 15 + data_size) & -16) - data_size
-    padding = bytearray(padding_size)
-
-    # Only set the first byte to padding size, leave rest as zeros
-    padding[0] = padding_size
-
-    return padding
-
-
-def hmac_sha512(a, b):
-    # Combine two secrets using HMAC-SHA512
-    if isinstance(a, str):
-        a = a.encode('utf-8')
-    if isinstance(b, str):
-        b = b.encode('utf-8')
-    hmac = HMAC.new(a, b, SHA512)
-    return hmac.digest()
-
-def kdf(key, info):
-    return hmac_sha512(key, info)
-
-def encrypt_data_with_prefix(data, secret):
-    # Ensure data is multiple of 16 bytes
-    assert len(data) % 16 == 0
-
-    # Generate encryption and HMAC secrets
-    large_secret = kdf(secret, "tde2e_encrypt_data")
-    encrypt_secret = large_secret[:32]
-    hmac_secret = large_secret[32:64]
-
-    # Generate message ID using HMAC
-    large_msg_id = hmac_sha512(hmac_secret, data)
-    msg_id = large_msg_id[:16]  # Use first 16 bytes as message ID
-
-    # Create result buffer
-    result = bytearray(len(data) + 16)
-    result[0:16] = msg_id
-
-    # Generate key and IV for encryption
-    encryption_secret = hmac_sha512(encrypt_secret, msg_id)
-    key = encryption_secret[:32]
-    iv = encryption_secret[32:48]
-
-    # Encrypt data
-    cipher = AES.new(key, AES.MODE_CBC, iv)
-    encrypted = cipher.encrypt(data)
-    result[16:] = encrypted
-
-    return bytes(result)
-
-def encrypt_data_with_deterministic_padding(data, secret):
-    # Generate deterministic padding
-    padding = generate_deterministic_padding(len(data), 16)
-
-    # Combine padding and data
-    combined = bytearray(len(padding) + len(data))
-    combined[0:len(padding)] = padding
-    combined[len(padding):] = data
-
-    # Encrypt the combined data
-    return encrypt_data_with_prefix(combined, secret)
-
-def encrypt_header(header, encrypted_message, secret):
-    # Verify inputs
-    assert len(header) == 32
-    assert len(encrypted_message) >= 16
-
-    # Get msg_id from the beginning of encrypted message
-    msg_id = encrypted_message[0:16]
-
-    encryption_key = kdf(secret, "tde2e_encrypt_header")[:32]
-
-    # Generate encryption key and IV from secret and message ID
-    encryption_secret = kdf(encryption_key, msg_id)
-    key = encryption_secret[:32]
-    iv = encryption_secret[32:48]
-
-    # Encrypt header with AES-CBC
-    cipher = AES.new(key, AES.MODE_CBC, iv)
-    encrypted_header = cipher.encrypt(header)
-
-    return encrypted_header
-
-def decrypt_data(encrypted_data, secret):
-    # Verify input size
-    if len(encrypted_data) < 17:
-        raise ValueError("Failed to decrypt: data is too small")
-    if len(encrypted_data) % 16 != 0:
-        raise ValueError("Failed to decrypt: data size is not divisible by 16")
-
-    # Extract msg_id and encrypted part
-    msg_id = encrypted_data[0:16]
-    encrypted_part = encrypted_data[16:]
-
-    # Generate encryption and HMAC secrets
-    large_secret = kdf(secret, "tde2e_encrypt_data")
-    hmac_secret = large_secret[32:64]
-    encrypt_secret = large_secret[:32]
-
-    # Generate key and IV for decryption
-    encryption_secret = hmac_sha512(encrypt_secret, msg_id)
-    key = encryption_secret[:32]
-    iv = encryption_secret[32:48]
-
-    # Decrypt with AES-CBC
-    cipher = AES.new(key, AES.MODE_CBC, iv)
-    decrypted_data = cipher.decrypt(encrypted_part)
-
-    # Verify msg_id
-    large_msg_id = hmac_sha512(hmac_secret, decrypted_data)
-    expected_msg_id = large_msg_id[:16]
-    if msg_id != expected_msg_id:
-        raise ValueError("Failed to decrypt: msg_id mismatch")
-
-    # Extract actual data by removing padding
-    prefix_size = decrypted_data[0]
-    if prefix_size > len(decrypted_data) or prefix_size < 16:
-        raise ValueError("Failed to decrypt: invalid prefix size")
-
-    return decrypted_data[prefix_size:]
-
-def decrypt_header(encrypted_header, encrypted_message, secret):
-    # Verify inputs
-    if len(encrypted_header) != 32:
-        raise ValueError("Failed to decrypt: invalid header size")
-    if len(encrypted_message) < 16:
-        raise ValueError("Failed to decrypt: invalid message size")
-
-    # Get msg_id from the beginning of encrypted message
-    msg_id = encrypted_message[0:16]
-    encryption_key = kdf(secret, "tde2e_encrypt_header")[:32]
-
-    # Generate encryption key and IV from secret and msg_id
-    encryption_secret = kdf(encryption_key, msg_id)
-    key = encryption_secret[:32]
-    iv = encryption_secret[32:48]
-
-    # Decrypt header with AES-CBC
-    cipher = AES.new(key, AES.MODE_CBC, iv)
-    decrypted_header = cipher.decrypt(encrypted_header)
-
-    return decrypted_header
-
-def generate_random_bytes(length):
-    return bytes(random.getrandbits(8) for _ in range(length))
-
-def generate_test_vectors():
-    # Generate random secrets and headers for each test
-    secret = generate_random_bytes(32)
-    header = generate_random_bytes(32)
-
-    # Test vectors with different data patterns
-    test_vectors = [
-        {
-            "name": "empty_message",
-            "secret": binascii.hexlify(secret).decode('ascii'),
-            "data": "",
-            "header": binascii.hexlify(header).decode('ascii')
-        },
-        {
-            "name": "simple_message",
-            "secret": binascii.hexlify(secret).decode('ascii'),
-            "data": binascii.hexlify(b"Hello, World!").decode('ascii'),
-            "header": binascii.hexlify(header).decode('ascii')
-        },
-        {
-            "name": "long_message",
-            "secret": binascii.hexlify(secret).decode('ascii'),
-            "data": binascii.hexlify(b"x" * 200).decode('ascii'),
-            "header": binascii.hexlify(header).decode('ascii')
-        },
-        {
-            "name": "random_message",
-            "secret": binascii.hexlify(secret).decode('ascii'),
-            "data": binascii.hexlify(generate_random_bytes(64)).decode('ascii'),
-            "header": binascii.hexlify(header).decode('ascii')
-        },
-        {
-            "name": "very_long_message",
-            "secret": binascii.hexlify(secret).decode('ascii'),
-            "data": binascii.hexlify(generate_random_bytes(300)).decode('ascii'),
-            "header": binascii.hexlify(header).decode('ascii')
-        },
-        {
-            "name": "message_with_special_chars",
-            "secret": binascii.hexlify(secret).decode('ascii'),
-            "data": binascii.hexlify(bytes([i for i in range(33, 64)])).decode('ascii'),
-            "header": binascii.hexlify(header).decode('ascii')
-        },
-        {
-            "name": "message_with_unicode",
-            "secret": binascii.hexlify(secret).decode('ascii'),
-            "data": binascii.hexlify("Hello, 世界!".encode('utf-8')).decode('ascii'),
-            "header": binascii.hexlify(header).decode('ascii')
-        },
-    ]
-
-    # Generate encrypted data and headers for each test vector
-    for vec in test_vectors:
-        secret = binascii.unhexlify(vec["secret"])
-        data = binascii.unhexlify(vec["data"])
-        header = binascii.unhexlify(vec["header"])
-
-        encrypted = encrypt_data_with_deterministic_padding(data, secret)
-        encrypted_header = encrypt_header(header, encrypted, secret)
-
-        # Test decryption
-        decrypted = decrypt_data(encrypted, secret)
-        if decrypted != data:
-            raise ValueError(f"Decryption failed for test vector: {vec['name']}")
-
-        # Test header decryption
-        decrypted_header = decrypt_header(encrypted_header, encrypted, secret)
-        if decrypted_header != header:
-            raise ValueError(f"Header decryption failed for test vector: {vec['name']}")
-
-        vec["encrypted"] = binascii.hexlify(encrypted).decode('ascii')
-        vec["encrypted_header"] = binascii.hexlify(encrypted_header).decode('ascii')
-
-    return test_vectors
-
-def print_cpp_header(test_vectors):
-    print("#pragma once")
-    print("\n#include <string>")
-    print("#include <vector>")
-    print("\nnamespace tde2e_core {")
-    print("\nstruct TestVector {")
-    print("    std::string name;")
-    print("    std::string secret;")
-    print("    std::string data;")
-    print("    std::string header;")
-    print("    std::string encrypted;")
-    print("    std::string encrypted_header;")
-    print("};")
-    print("\ninline std::vector<TestVector> get_test_vectors() {")
-    print("    return {")
-
-    for vec in test_vectors:
-        print("        {")
-        print(f'            "{vec["name"]}",')
-        print(f'            "{vec["secret"]}",')
-        print(f'            "{vec["data"]}",')
-        print(f'            "{vec["header"]}",')
-        print(f'            "{vec["encrypted"]}",')
-        print(f'            "{vec["encrypted_header"]}"')
-        print("        },")
-
-    print("    };")
-    print("}")
-    print("\n} // namespace tde2e_core")
-
-if __name__ == "__main__":
-    test_vectors = generate_test_vectors()
-
-    # Get the directory of the current script
-    script_dir = os.path.dirname(os.path.abspath(__file__))
-    # Go up two levels to reach the tde2e directory
-    tde2e_dir = os.path.dirname(os.path.dirname(script_dir))
-    # Create the test directory if it doesn't exist
-    test_dir = os.path.join(tde2e_dir, "test")
-    os.makedirs(test_dir, exist_ok=True)
-
-    # Write the header file
-    header_path = os.path.join(test_dir, "EncryptionTestVectors.h")
-    with open(header_path, "w") as f:
-        # Redirect print output to the file
-        import sys
-        old_stdout = sys.stdout
-        sys.stdout = f
-        print_cpp_header(test_vectors)
-        sys.stdout = old_stdout
diff --git a/third-party/td/td/tde2e/td/e2e/utils.h b/third-party/td/td/tde2e/td/e2e/utils.h
deleted file mode 100644
index 2b9e8300c5..0000000000
--- a/third-party/td/td/tde2e/td/e2e/utils.h
+++ /dev/null
@@ -1,145 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/e2e/e2e_api.h"
-#include "td/e2e/e2e_errors.h"
-#include "td/e2e/Keys.h"
-
-#include "td/utils/as.h"
-#include "td/utils/int_types.h"
-#include "td/utils/Random.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_storers.h"
-#include "td/utils/UInt.h"
-
-#include <string>
-#include <utility>
-namespace tde2e_api {
-inline Error to_error(const td::Status &status) {
-  auto error_code = ErrorCode(status.code());
-  if (error_string(error_code) == "UNKNOWN_ERROR") {
-    return Error{ErrorCode::UnknownError, status.message().str()};
-  }
-  return Error{error_code, status.message().str()};
-}
-
-template <class T>
-Result<T> to_result(td::Result<T> &value) {
-  if (value.is_ok()) {
-    return Result<T>(value.move_as_ok());
-  }
-  return Result<T>(to_error(value.error()));
-}
-template <typename T>
-Result<T>::Result(td::Result<T> &&value) : Result(to_result(value)) {
-}
-
-template <typename T>
-Result<T>::Result(td::Status &&status) : Result(to_error(status)) {
-}
-
-}  // namespace tde2e_api
-
-namespace tde2e_core {
-using E = tde2e_api::ErrorCode;
-inline td::Status Error(E error_code) {
-  auto msg = tde2e_api::error_string(error_code);
-  return td::Status::Error(static_cast<int>(error_code), td::Slice(msg.data(), msg.size()));
-}
-inline td::Status Error(E error_code, td::Slice message) {
-  auto msg = tde2e_api::error_string(error_code);
-  return td::Status::Error(static_cast<int>(error_code), PSLICE()
-                                                             << td::Slice(msg.data(), msg.size()) << ": " << message);
-}
-
-template <typename T, typename = void>
-constexpr bool has_static_ID = false;
-
-template <typename T>
-constexpr bool has_static_ID<T, decltype((void)T::ID, void())> = true;
-
-template <class T>
-std::string serialize_boxed(const T &object) {
-  if constexpr (has_static_ID<T>) {
-    auto suffix = serialize(object);
-    std::string result(4 + suffix.size(), 0);
-    td::TlStorerUnsafe storer(td::MutableSlice(result).ubegin());
-    storer.store_int(T::ID);
-    storer.store_slice(suffix);
-    return result;
-  } else {
-    return td::serialize(object);
-  }
-}
-
-template <class T>
-td::SecureString serialize_boxed_secure(const T &object) {
-  if constexpr (has_static_ID<T>) {
-    auto suffix = td::serialize_secure(object);
-    td::SecureString result(4 + suffix.size(), 0);
-    td::TlStorerUnsafe storer(result.as_mutable_slice().ubegin());
-    storer.store_int(T::ID);
-    storer.store_slice(suffix);
-    return result;
-  } else {
-    return td::serialize_secure(object);
-  }
-}
-
-struct UInt256Hash {
-  td::uint32 operator()(const td::UInt256 v) const {
-    return td::as<td::uint32>(v.raw);
-  }
-};
-
-inline td::UInt256 generate_nonce() {
-  td::UInt256 nonce;
-  td::Random::secure_bytes(nonce.as_mutable_slice());
-  return nonce;
-}
-
-template <class T>
-td::Status verify_signature(const PublicKey &public_key, T &signed_tl_object) {
-  auto signature = signed_tl_object.signature_;
-  signed_tl_object.signature_ = {};
-  auto to_sign = serialize_boxed(signed_tl_object);
-  auto result = public_key.verify(to_sign, Signature::from_u512(signature));
-  signed_tl_object.signature_ = signature;
-  if (result.is_error()) {
-    return Error(E::InvalidBlock_InvalidSignature, result.message());
-  }
-  return result;
-}
-
-template <class T>
-td::Result<Signature> sign(const PrivateKey &private_key, T &unsigned_tl_object) {
-  unsigned_tl_object.signature_ = {};
-  auto to_sign = serialize_boxed(unsigned_tl_object);
-  return private_key.sign(to_sign);
-}
-
-template <class T>
-td::Result<T> to_td(tde2e_api::Result<T> &&r) {
-  if (r.is_ok()) {
-    return std::move(r.value());
-  }
-  return td::Status::Error(static_cast<int>(r.error().code), r.error().message);
-}
-
-inline td::Status to_td(tde2e_api::Result<tde2e_api::Ok> &r) {
-  if (r.is_ok()) {
-    return td::Status::OK();
-  }
-  return td::Status::Error(static_cast<int>(r.error().code), r.error().message);
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/test/EncryptionTestVectors.h b/third-party/td/td/tde2e/test/EncryptionTestVectors.h
deleted file mode 100644
index 8c233e8848..0000000000
--- a/third-party/td/td/tde2e/test/EncryptionTestVectors.h
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <string>
-#include <vector>
-
-namespace tde2e_core {
-
-struct TestVector {
-  std::string name;
-  std::string secret;
-  std::string data;
-  std::string header;
-  std::string encrypted;
-  std::string encrypted_header;
-};
-
-inline std::vector<TestVector> get_test_vectors() {
-  return {
-      {"empty_message", "5a08a19b447df98136a4502e01b286011b2d148084a7ca17e3a93616d279eb2a", "",
-       "a36c57ad5e8d6a30e80e010ab903b60da0206db1b4fd981cd61e059bbd8c0d4f",
-       "9e2476ad849d22a44d9135c5c3c5e8b52d4f88473ae8745f3a9cec4d54780caf",
-       "de3539a5e10b20a3a0cffc24dbbd76b3a7e0eeab402cb38396d64785a3ab7c25"},
-      {"simple_message", "5a08a19b447df98136a4502e01b286011b2d148084a7ca17e3a93616d279eb2a",
-       "48656c6c6f2c20576f726c6421", "a36c57ad5e8d6a30e80e010ab903b60da0206db1b4fd981cd61e059bbd8c0d4f",
-       "872b141f6d1e3554ead471dffd0fee5c04a0b04260eafcca9187158ce84c4487e9429df876706753913de61029402478",
-       "013037e02dc8dbf13598d96eb333a69a930efe043bac7dce0d6edfd1abc6bd2f"},
-      {"long_message", "5a08a19b447df98136a4502e01b286011b2d148084a7ca17e3a93616d279eb2a",
-       "787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787"
-       "878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878"
-       "787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787878787"
-       "8787878787878787878787878787878787878787878787878787878787878787878",
-       "a36c57ad5e8d6a30e80e010ab903b60da0206db1b4fd981cd61e059bbd8c0d4f",
-       "0fd497802c755b9c6fb9d58d38b9fb5fbd7dc9ccf78af3eb003a22d46bfa38894135d976bbec0f3cadc2b61a4d8648120dada26b2c3153d"
-       "ef20fb9e370def31c802e202846946b5cb1bc2c01a7b46605292d6043ffb8f4040aaf18914e1c93fe9e683f088e23ee5e1551f00068a23f"
-       "a3ebb8d6b9dcbf7a9072b12323b1a64247ba9bc7d277b08cfcc37387a0d24afca170dc027d8f0212eb62bccd9555de98936047c9bfc6a03"
-       "aa539073f458795bd94b9b43003fe2299805f90c1d30ca631c8054242687e41e890bf4d744b529d7e96ea48a5bcec700993b5e980173049"
-       "cf9df6f93d62ccc06d933fd6d7063890fa2d",
-       "697558ba60e789622ee90dffc55f1f1148cfea568c573b257fcf2083cf8aad0a"},
-      {"random_message", "5a08a19b447df98136a4502e01b286011b2d148084a7ca17e3a93616d279eb2a",
-       "e61d2b05302c49faa9fac6a893957a846a2b30801dc171cf62ffec92297b10bfc4a82445839ecb4c5800ffb37c5356d4b95fc565ddb2e7f"
-       "3e21f2936a952373c",
-       "a36c57ad5e8d6a30e80e010ab903b60da0206db1b4fd981cd61e059bbd8c0d4f",
-       "515f0223f27302ca5e952ec978ec66bcdf04e7f72ae3a8e011e21457b355891d12e158c9b2dfb921520a0e5f531e6a20e95d42635b084a0"
-       "b38a6e658f4a4181f85ea83756d316cea538cc34592491eef3e3530c34c63a693e3372cbdd0076628",
-       "b5bdfe6a3400c5d299d94756af4c18bbb8cca4a2635beeba3d89bbaa0025d9d3"},
-      {"very_long_message", "5a08a19b447df98136a4502e01b286011b2d148084a7ca17e3a93616d279eb2a",
-       "de6e0dbde23e04b6be3d4c46868a1171c6b879227b19e370765823390501b195783c356af2156e828e511473d5698c9bd1cb4a70b7e209b"
-       "bb02f8dda044af02ab6869478b211e3a17d72fbe6289c1b2e6132cb141e89cf72cf70defd67a23fbfe8e718a09a9c6a345565ebdc73e1f5"
-       "9927744801eb4e6f0b30d2705ea181e02a4030252330ac73bc4a4d51d2ccafb2f3f62abe3e81163be325ac823571c8dfae739f70bff3916"
-       "4e3cec7f53b88f97735dc25ac0c0630b1b41a131a979ba5164ab92e103716e9096e2fb5a6434b31d2c3673fca7e54dcdcce3807bfd43ee7"
-       "bc3422868094305a9847ce7666bf57e49fb3c2009cb30eb3ba955942b923ec2c2a4e0341d86b524b198974bdce9cf863ab3526e9e03e533"
-       "99dad20fc218554567c440536a31e05573f4cb930ba6a",
-       "a36c57ad5e8d6a30e80e010ab903b60da0206db1b4fd981cd61e059bbd8c0d4f",
-       "e296a98cd96154b27d4b94cc520a8f028c61bd5ea69d22f0c3c13658c4bd5db0bd6661d0d17fac791c5cc06b3a54a853916bd7bf8a00644"
-       "acc53cca43b6f51c66bc6a6cb98cf8d9f23dcd639089d1d9d3dfbc8829a1a81638317bbd3edb070c1dae181d97605eb42a6111b8696a16c"
-       "c3e42639e38e93f872111fd67e934740f73a57df0e6edc6726c9aff99682bfcb7ddd99a3bef30da70d3c21e590fd02defc23be9f7f243e4"
-       "5a56b13562b8ecea09a14ac5af3a0500cb52f73f1bffea4a6624644da0bc4d112e5ee684b13a2ae8dbf401a5a8e581295a9dc876eaeb8ae"
-       "4d732fb78d50a92c302d15c0a2308e43fc6e147ec162b28a534d6c95a2020fa141f3ce7f7dd25ff000d35f732a145abf31b3ff4d0da015d"
-       "39da3b0fc70e692b567a9507be59e8c91a63fe809c495d76e70ec857cc24978771fc9314251e2bc4b1b24e0448514f97a6d438255cba8c1"
-       "854019",
-       "8dab56b50ce6a4315b6e0b4eb32c39dfe817cb462ee9e070e2a60bb843c16107"},
-      {"message_with_special_chars", "5a08a19b447df98136a4502e01b286011b2d148084a7ca17e3a93616d279eb2a",
-       "2122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f",
-       "a36c57ad5e8d6a30e80e010ab903b60da0206db1b4fd981cd61e059bbd8c0d4f",
-       "2014d1125081316a334896cbe5aed251d9fba6f3422afbc7e7bc9019e10e184241d18f71ef86603b5ce03e1c351e3dfff8adfb8f3498300"
-       "a712ec134b367c533",
-       "6f5a5de410db3606ff94fa14d0e084a6ba5a51241a2abf45ac593e4748c477ce"},
-      {"message_with_unicode", "5a08a19b447df98136a4502e01b286011b2d148084a7ca17e3a93616d279eb2a",
-       "48656c6c6f2c20e4b896e7958c21", "a36c57ad5e8d6a30e80e010ab903b60da0206db1b4fd981cd61e059bbd8c0d4f",
-       "7ae70cb905f23109477b4d758d3907238ff4c37e2f351f086268ba3e85cef0257af58a70d8838c7b9c044f30382c2ccf",
-       "7dfb2d2e76df39b2fafdf01de009088a7e4d045b8630941986111ef2010d7c4a"},
-  };
-}
-
-}  // namespace tde2e_core
diff --git a/third-party/td/td/tde2e/test/blockchain.cpp b/third-party/td/td/tde2e/test/blockchain.cpp
deleted file mode 100644
index aca685de90..0000000000
--- a/third-party/td/td/tde2e/test/blockchain.cpp
+++ /dev/null
@@ -1,254 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/TestBlockchain.h"
-
-#include "td/utils/simple_tests.h"
-#include "td/utils/Status.h"
-
-using namespace tde2e_core;
-using BB = BlockBuilder;
-using BT = BlockchainTester;
-
-S_TEST(BlockchainValidation, ZeroBlock) {
-  auto alice_pk = PrivateKey::generate().move_as_ok();
-  auto bob_pk = PrivateKey::generate().move_as_ok();
-  {
-    TEST_DEBUG_VALUE(description, "Valid: zero block with empty group state");
-    auto block = BB().with_height(0)
-                     .with_block_hash({})
-                     .with_group_state({{1, AllPermissions, alice_pk.to_public_key()}}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_ok(block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Valid: zero block with group state only in proof");
-    auto block = BB().with_height(0)
-                     .with_block_hash({})
-                     .set_value("a", "b")  // need some changes
-                     .with_group_state({}, false, true, 7)
-                     .with_shared_key({}, false, true)
-                     .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_ok(block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: zero block with wrong height");
-    auto block = BB().with_height(1)
-                     .with_block_hash({})
-                     .with_group_state({}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_HeightMismatch, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: zero block with wrong hash");
-    auto block = BB().with_height(0)
-                     .with_block_hash({1})
-                     .with_group_state({}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_HashMismatch, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Valid: zero block with invalid signature");
-    auto block = BB().with_height(0)
-                     .with_block_hash({})
-                     .with_group_state({}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .with_public_key(alice_pk)
-                     .build_zero_sign();
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_InvalidSignature, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: zero block with skipped group state proof");
-    auto block = BB().with_height(0)
-                     .set_value("a", "b")
-                     .with_block_hash({})
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_DEBUG_VALUE(block, block);
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_InvalidStateProof_Group, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: zero block with wrong user_id in group state proof");
-    auto block = BB().with_height(0)
-                     .with_block_hash({})
-                     .set_value("a", "b")
-                     .with_group_state({{1, 3, alice_pk.to_public_key()}}, false, true)
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_InvalidStateProof_Group, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: zero block with other person in group state");
-    auto block = BB().with_height(0)
-                     .with_block_hash({})
-                     .with_group_state({{2, 3, bob_pk.to_public_key()}}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_NoPermissions, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: zero block with duplicate group state");
-    auto block = BB().with_height(0)
-                     .with_block_hash({})
-                     .with_group_state({{1, 3, alice_pk.to_public_key()}}, true, true)
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_InvalidStateProof_Group, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: duplicate user_id");
-    auto block = BB().with_height(0)
-                     .with_block_hash({})
-                     .with_group_state({{1, 1, alice_pk.to_public_key()}, {1, 1, bob_pk.to_public_key()}}, true, false)
-                     .with_shared_key({1}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_InvalidGroupState, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: duplicate public key");
-    auto block =
-        BB().with_height(0)
-            .with_block_hash({})
-            .with_group_state({{1, 1, alice_pk.to_public_key()}, {2, 1, alice_pk.to_public_key()}}, true, false)
-            .with_shared_key({1}, true, false)
-            .skip_group_state_proof()
-            .skip_shared_key_proof()
-            .build(alice_pk);
-    TEST_TRY_STATUS(BT().expect_error(E::InvalidBlock_InvalidGroupState, block));
-  }
-  return td::Status::OK();
-}
-
-S_TEST(BlockchainValidation, GroupStateChanges) {
-  auto alice_pk = PrivateKey::generate().move_as_ok();
-  auto bob_pk = PrivateKey::generate().move_as_ok();
-  auto carol_pk = PrivateKey::generate().move_as_ok();
-  Block minus_one_block;
-  auto zero_block =
-      BB().with_previous_block(minus_one_block)
-          .with_group_state({{1, 1, alice_pk.to_public_key()}, {2, 2, bob_pk.to_public_key()}}, true, false, 3)
-          .with_shared_key({1}, true, false)
-          .skip_group_state_proof()
-          .skip_shared_key_proof()
-          .build(alice_pk);
-  {
-    TEST_DEBUG_VALUE(description, "Valid: sanity check of zero block");
-    BT bt;
-    TEST_TRY_STATUS(bt.expect_ok(zero_block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: can't remove without permissions");
-    BT bt;
-    TEST_TRY_STATUS(bt.expect_ok(zero_block));
-    auto block = BB().with_previous_block(zero_block)
-                     .with_group_state({{1, 1, alice_pk.to_public_key()}}, true, false)
-                     .with_shared_key({1}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(bt.expect_error(E::InvalidBlock_NoPermissions, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: can't add without permissions");
-    BT bt;
-    TEST_TRY_STATUS(bt.expect_ok(zero_block));
-    auto block = BB().with_previous_block(zero_block)
-                     .with_group_state({{3, 2, carol_pk.to_public_key()}}, true, false)
-                     .with_shared_key({3}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(bob_pk);
-    TEST_TRY_STATUS(bt.expect_error(E::InvalidBlock_NoPermissions, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: can't raise permissions");
-    BT bt;
-    TEST_TRY_STATUS(bt.expect_ok(zero_block));
-    auto block = BB().with_previous_block(zero_block)
-                     .with_group_state({{1, 3, alice_pk.to_public_key()}, {2, 2, bob_pk.to_public_key()}}, true, false)
-                     .with_shared_key({1, 2}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(bt.expect_error(E::InvalidBlock_NoPermissions, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Valid: new shared key");
-    BT bt;
-    TEST_TRY_STATUS(bt.expect_ok(zero_block));
-    auto block = BB().with_previous_block(zero_block)
-                     .with_group_state({{1, 1, alice_pk.to_public_key()}, {2, 2, bob_pk.to_public_key()}}, true, false)
-                     .with_shared_key({1, 2}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(alice_pk);
-    TEST_TRY_STATUS(bt.expect_ok(block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: remove self and change shared key");
-    BT bt;
-    TEST_TRY_STATUS(bt.expect_ok(zero_block));
-    auto block = BB().with_previous_block(zero_block)
-                     .with_group_state({{1, 1, alice_pk.to_public_key()}}, true, false)
-                     .with_shared_key({1}, true, false)
-                     .skip_group_state_proof()
-                     .skip_shared_key_proof()
-                     .build(bob_pk);
-    TEST_TRY_STATUS(bt.expect_error(E::InvalidBlock_NoPermissions, block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Valid: self join");
-    BT bt;
-    TEST_TRY_STATUS(bt.expect_ok(zero_block));
-    auto block =
-        BB().with_previous_block(zero_block)
-            .with_group_state(
-                {{1, 1, alice_pk.to_public_key()}, {2, 2, bob_pk.to_public_key()}, {3, 2, carol_pk.to_public_key()}},
-                true, false)
-            .with_shared_key({1, 2, 3}, true, false)
-            .skip_group_state_proof()
-            .skip_shared_key_proof()
-            .build(carol_pk);
-    TEST_TRY_STATUS(bt.expect_ok(block));
-  }
-  {
-    TEST_DEBUG_VALUE(description, "Invalid: self join when there is no permission");
-    BT bt;
-    auto zero_block_without_external =
-        BB().with_previous_block(minus_one_block)
-            .with_group_state({{1, 1, alice_pk.to_public_key()}, {2, 2, bob_pk.to_public_key()}}, true, false, 0)
-            .with_shared_key({1}, true, false)
-            .skip_group_state_proof()
-            .skip_shared_key_proof()
-            .build(alice_pk);
-    TEST_TRY_STATUS(bt.expect_ok(zero_block_without_external));
-    auto block =
-        BB().with_previous_block(zero_block_without_external)
-            .with_group_state(
-                {{1, 1, alice_pk.to_public_key()}, {2, 2, bob_pk.to_public_key()}, {3, 0, carol_pk.to_public_key()}},
-                true, false)
-            .with_shared_key({1, 2, 3}, true, false)
-            .skip_group_state_proof()
-            .skip_shared_key_proof()
-            .build(carol_pk);
-    TEST_TRY_STATUS(bt.expect_error(E::InvalidBlock_NoPermissions, block));
-  }
-  // TODO(now): we should rethink how permission works
-  // 1. Who may set shared key?
-  // 2. Who may rewrite group state with the **same** state?
-  return td::Status::OK();
-}
diff --git a/third-party/td/td/tde2e/test/e2e.cpp b/third-party/td/td/tde2e/test/e2e.cpp
deleted file mode 100644
index cecf6be055..0000000000
--- a/third-party/td/td/tde2e/test/e2e.cpp
+++ /dev/null
@@ -1,859 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/BitString.h"
-#include "td/e2e/Blockchain.h"
-#include "td/e2e/Call.h"
-#include "td/e2e/CheckSharedSecret.h"
-#include "td/e2e/Container.h"
-#include "td/e2e/DecryptedKey.h"
-#include "td/e2e/e2e_api.h"
-#include "td/e2e/EncryptedKey.h"
-#include "td/e2e/EncryptedStorage.h"
-#include "td/e2e/MessageEncryption.h"
-#include "td/e2e/Mnemonic.h"
-#include "td/e2e/QRHandshake.h"
-#include "td/e2e/TestBlockchain.h"
-#include "td/e2e/Trie.h"
-
-#include "td/telegram/e2e_api.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/Ed25519.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/overloaded.h"
-#include "td/utils/Random.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/simple_tests.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/UInt.h"
-
-#include <map>
-#include <optional>
-#include <utility>
-
-using namespace tde2e_core;
-
-namespace api = tde2e_api;
-
-template <class T>
-static td::Status expect_error(td::Result<T> result) {
-  if (result.is_ok()) {
-    return td::Status::Error("Receive Ok instead of Error");
-  }
-  return td::Status::OK();
-}
-
-S_TEST(MessageEncryption, simple) {
-  std::string secret = "secret";
-  {
-    std::string data = "some private data";
-    std::string wrong_secret = "wrong secret";
-    auto encrypted_data = MessageEncryption::encrypt_data(data, secret);
-    LOG(ERROR) << encrypted_data.size();
-    TEST_TRY_RESULT(decrypted_data, MessageEncryption::decrypt_data(encrypted_data, secret));
-    TEST_ASSERT_EQ(data, decrypted_data, "decryption");
-    TEST_TRY_STATUS(expect_error(MessageEncryption::decrypt_data(encrypted_data, wrong_secret)));
-    TEST_TRY_STATUS(expect_error(MessageEncryption::decrypt_data("", secret)));
-    TEST_TRY_STATUS(expect_error(MessageEncryption::decrypt_data(std::string(32, 'a'), secret)));
-    TEST_TRY_STATUS(expect_error(MessageEncryption::decrypt_data(std::string(33, 'a'), secret)));
-    TEST_TRY_STATUS(expect_error(MessageEncryption::decrypt_data(std::string(64, 'a'), secret)));
-    TEST_TRY_STATUS(expect_error(MessageEncryption::decrypt_data(std::string(128, 'a'), secret)));
-  }
-
-  td::Random::Xorshift128plus rnd(123);
-  for (size_t i = 0; i < 255; i++) {
-    std::string data;
-    for (size_t j = 0; j < i; j++) {
-      data += static_cast<char>(rnd.fast('a', 'z'));
-    }
-    auto encrypted_data = MessageEncryption::encrypt_data(data, secret);
-    TEST_TRY_RESULT(decrypted_data, MessageEncryption::decrypt_data(encrypted_data, secret));
-    TEST_ASSERT_EQ(data, decrypted_data, "decryption");
-  }
-  return td::Status::OK();
-}
-
-struct E2eHandshakeTest {
-  td::Ed25519::PrivateKey alice;
-  td::Ed25519::PublicKey alice_public;
-  td::Ed25519::PrivateKey bob;
-  td::Ed25519::PublicKey bob_public;
-
-  td::SecureString shared_secret;
-};
-
-static E2eHandshakeTest gen_test() {
-  auto alice = td::Ed25519::generate_private_key().move_as_ok();
-  auto alice_public = alice.get_public_key().move_as_ok();
-  auto bob = td::Ed25519::generate_private_key().move_as_ok();
-  auto bob_public = bob.get_public_key().move_as_ok();
-  auto shared_secret = td::Ed25519::compute_shared_secret(alice.get_public_key().move_as_ok(), bob).move_as_ok();
-  return E2eHandshakeTest{std::move(alice), std::move(alice_public), std::move(bob), std::move(bob_public),
-                          std::move(shared_secret)};
-}
-
-static void run_test(const E2eHandshakeTest &test) {
-  auto alice_secret =
-      td::Ed25519::compute_shared_secret(test.bob.get_public_key().move_as_ok(), test.alice).move_as_ok();
-  auto bob_secret = td::Ed25519::compute_shared_secret(test.alice.get_public_key().move_as_ok(), test.bob).move_as_ok();
-  CHECK(test.alice.get_public_key().move_as_ok().as_octet_string() == test.alice_public.as_octet_string());
-  CHECK(test.bob.get_public_key().move_as_ok().as_octet_string() == test.bob_public.as_octet_string());
-  CHECK(alice_secret == bob_secret);
-  CHECK(alice_secret == test.shared_secret);
-}
-
-static E2eHandshakeTest pregenerated_test() {
-  auto alice_public_key_str = td::base64url_decode_secure("RvG0CT5i8D-CYnfhp2akVC1tPRBIw-4X6ZqNBjH-mZI").move_as_ok();
-  auto alice_private_key_str = td::base64url_decode_secure("8NZGWKfRCJfiks74RG9_xHmYydarLiRsoq8VcJGPglg").move_as_ok();
-  auto bob_public_key_str = td::base64url_decode_secure("1V3BGwmbo-Mwsw7QlWKN4OZFPBP9z9VhFlZKRdzTrGw").move_as_ok();
-  auto bob_private_key_str = td::base64url_decode_secure("YMGoowtnZ99roUM2y5JRwiQrwGaNJ-ZRE5boy-l4aHg").move_as_ok();
-
-  auto alice_public_key = td::Ed25519::PublicKey(alice_public_key_str.copy());
-  auto alice_private_key = td::Ed25519::PrivateKey(alice_private_key_str.copy());
-  auto bob_public_key = td::Ed25519::PublicKey(bob_public_key_str.copy());
-  auto bob_private_key = td::Ed25519::PrivateKey(bob_private_key_str.copy());
-  auto shared_secret = td::base64url_decode_secure("CU6NsPBw59neM9crFvxKELbtKgAkI7G8tDHsb4CmyVA").move_as_ok();
-
-  return E2eHandshakeTest{std::move(alice_private_key), std::move(alice_public_key), std::move(bob_private_key),
-                          std::move(bob_public_key), std::move(shared_secret)};
-}
-
-TEST(Handshake, InvalidKeys) {
-  auto private_key = td::Ed25519::generate_private_key().move_as_ok();
-  auto zero_key = td::Ed25519::PublicKey(td::SecureString(32, 0));
-  td::Ed25519::compute_shared_secret(zero_key, private_key).ensure_error();
-}
-
-TEST(Handshake, Random) {
-  auto test = gen_test();
-  run_test(test);
-}
-
-TEST(Handshake, Pregenerated) {
-  auto test = pregenerated_test();
-  run_test(test);
-}
-
-TEST(QRHandshake, Basic) {
-  td::int64 alice_user_id = 123;
-  td::int64 bob_user_id = 321;
-  auto alice_private_key = PrivateKey::generate().move_as_ok();
-  auto bob_private_key = PrivateKey::generate().move_as_ok();
-
-  auto bob = QRHandshakeBob::create(bob_user_id, bob_private_key);
-  auto start = bob.generate_start();  // should be passed via QR
-  auto alice =
-      QRHandshakeAlice::create(alice_user_id, alice_private_key, bob_user_id, bob_private_key.to_public_key(), start)
-          .move_as_ok();
-  auto accept = alice.generate_accept();
-  auto finish = bob.receive_accept(alice_user_id, alice_private_key.to_public_key(), accept).move_as_ok();
-  alice.receive_finish(finish).ensure();
-}
-
-TEST(CheckSharedSecret, Basic) {
-  auto alice = CheckSharedSecret::create();
-  auto bob = CheckSharedSecret::create();
-
-  alice.recive_commit_nonce(bob.commit_nonce()).ensure();
-  bob.recive_commit_nonce(alice.commit_nonce()).ensure();
-
-  alice.receive_reveal_nonce(bob.reveal_nonce().move_as_ok()).ensure();
-  bob.receive_reveal_nonce(alice.reveal_nonce().move_as_ok()).ensure();
-
-  CHECK(alice.finalize_hash("abc").move_as_ok() == bob.finalize_hash("abc").move_as_ok());
-}
-
-// node_type enum
-
-TEST(MiniBlockchain, Basic) {
-  auto private_key = PrivateKey::generate().move_as_ok();
-  Blockchain remote_blockchain = Blockchain::create_empty();
-  Blockchain local_blockchain = Blockchain::create_empty();
-
-  auto block = local_blockchain.set_value(std::string(32, 'a'), "b", private_key);
-  remote_blockchain.try_apply_block(block, {}).ensure();
-  local_blockchain.try_apply_block(block, {}).ensure();
-  block = local_blockchain.set_value(std::string(32, 'b'), "c", private_key);
-  remote_blockchain.try_apply_block(block, {}).ensure();
-  local_blockchain.try_apply_block(block, {}).ensure();
-}
-
-// Example usage
-TEST(Tree, BitString) {
-  LOG(ERROR) << "BitString count: " << BitString::get_counter_value();
-  td::UInt256 hash;
-  sha256("hello world", hash.as_mutable_slice());
-  BitString s(hash.as_slice());
-  for (auto l = 0; l <= 256; l++) {
-    for (auto r = l; r <= 256; r++) {
-      if (l > r) {
-        return;
-      }
-      auto a = s.substr(l, r - l);
-      BitString b;
-      auto str = td::serialize(a);
-      CHECK(str.size() % 4 == 0);
-
-      b = BitString::fetch_from_network(str).move_as_ok();
-      ASSERT_EQ(a, b);
-    }
-  }
-  LOG(ERROR) << "BitString count: " << BitString::get_counter_value();
-}
-
-TEST(Tree, SerializeStress) {
-  std::string value(32, 'a');
-  td::Random::Xorshift128plus rnd(123);
-  for (size_t i = 0; i < 10000; i++) {
-    size_t n = rnd.fast(0, 20);
-    TrieRef root = TrieNode::empty_node();
-    for (size_t j = 0; j < n; j++) {
-      td::UInt256 hash;
-      rnd.bytes(hash.as_mutable_slice());
-      root = set(root, hash.as_slice(), td::to_string(j)).move_as_ok();
-    }
-
-    auto old_hash = root->hash;
-    auto s = TrieNode::serialize_for_network(root).move_as_ok();
-    root = TrieNode::fetch_from_network(s).move_as_ok();
-    auto new_hash = root->hash;
-    CHECK(old_hash == new_hash);
-
-    auto snapshot = TrieNode::serialize_for_snapshot(root, "").move_as_ok();
-    auto snapshot_root = TrieNode::fetch_from_snapshot(snapshot).move_as_ok();
-    auto snapshot2 = TrieNode::serialize_for_snapshot(snapshot_root, snapshot).move_as_ok();
-    CHECK(snapshot == snapshot2);
-  }
-}
-
-TEST(Tree, BitStringCounter) {
-  CHECK(BitString::get_counter_value() == 0);
-  {
-    BitString bs(1);
-    size_t l = 1;
-    size_t r = 2;
-
-    auto a = bs.substr(l, r - l);
-    auto s = td::serialize(a);
-    CHECK(s.size() % 4 == 0);
-
-    BitString b = BitString::fetch_from_network(s).move_as_ok();
-    ASSERT_EQ(a, b);
-  }
-  CHECK(BitString::get_counter_value() == 0);
-}
-
-TEST(MerkleTree, Basic) {
-  // Build the tree
-  TrieRef root = TrieNode::empty_node();
-  root = set(root, "apple", "fruit").move_as_ok();
-  print_tree(root);
-  root = set(root, "application", "software").move_as_ok();
-  print_tree(root);
-  root = set(root, "banana", "fruit").move_as_ok();
-  print_tree(root);
-
-  ASSERT_EQ("fruit", get(root, "apple").move_as_ok());
-  ASSERT_EQ("software", get(root, "application").move_as_ok());
-  ASSERT_EQ("fruit", get(root, "banana").move_as_ok());
-
-  std::vector<td::Slice> keys = {"apple", "banana"};
-  TrieRef pruned_tree = generate_pruned_tree(root, keys).move_as_ok();
-  print_tree(pruned_tree);
-
-  ASSERT_EQ("fruit", get(pruned_tree, "apple").move_as_ok());
-  ASSERT_EQ("fruit", get(pruned_tree, "banana").move_as_ok());
-  get(pruned_tree, "application").ensure_error();
-
-  auto serialized = TrieNode::serialize_for_network(pruned_tree).move_as_ok();
-  TrieRef pruned_tree2 = TrieNode::fetch_from_network(serialized).move_as_ok();
-  print_tree(pruned_tree2);
-
-  ASSERT_EQ("fruit", get(pruned_tree2, "apple").move_as_ok());
-  ASSERT_EQ("fruit", get(pruned_tree2, "banana").move_as_ok());
-  get(pruned_tree2, "application").ensure_error();
-}
-
-static TrieRef root;
-static const int N = 1'000'000;
-
-TEST(Tree, BenchA) {
-  LOG(ERROR) << "BitString count: " << BitString::get_counter_value();
-  root = TrieNode::empty_node();
-  std::string value(32, 'a');
-  for (int i = 0; i < N; i++) {
-    auto key = value + std::to_string(i);
-    td::UInt256 hash;
-    sha256(key, hash.as_mutable_slice());
-    root = set(std::move(root), hash.as_slice().str(), value).move_as_ok();
-  }
-  LOG(ERROR) << "BitString count: " << BitString::get_counter_value();
-}
-
-static std::string serialized_root;
-
-TEST(Tree, Serialize) {
-  serialized_root = TrieNode::serialize_for_network(root).move_as_ok();
-}
-
-TEST(Tree, Clear) {
-  root = {};
-  LOG(ERROR) << "BitString count: " << BitString::get_counter_value();
-}
-
-TEST(Tree, Deserialize) {
-  root = TrieNode::fetch_from_network(serialized_root).move_as_ok();
-  LOG(ERROR) << "BitString count: " << BitString::get_counter_value();
-}
-
-TEST(Tree, BenchAPruned) {
-  std::string value(32, 'a');
-  size_t step = 1;
-  std::vector<td::UInt256> keys_str(step);
-  std::vector<td::Slice> keys(step);
-  for (size_t i = 0; i < 1000000; i += step) {
-    for (size_t j = 0; j < step; j++) {
-      auto key = value + std::to_string((i + j) % N);
-      sha256(key, keys_str[j].as_mutable_slice());
-      keys[j] = keys_str[j].as_slice();
-    }
-    //auto node = generate_pruned_tree(TrieNode::fetch_from_snapshot(serialized_root).move_as_ok(), keys, serialized_root).move_as_ok();
-    auto node = generate_pruned_tree(root, keys, serialized_root).move_as_ok();
-    auto x = TrieNode::serialize_for_network(node).move_as_ok();
-    LOG_IF(ERROR, i == 0) << x.size() << " bytes serialized";
-  }
-}
-
-TEST(Tree, BenchAA) {
-  std::string value(32, 'a');
-  for (int i = 0; i < N; i++) {
-    auto key = value + std::to_string(i);
-    td::UInt256 hash;
-    sha256(key, hash.as_mutable_slice());
-    CHECK(value == get(root, hash.as_slice().str()).move_as_ok());
-  }
-}
-TEST(Tree, BenchAAA) {
-  std::string value(32, 'a');
-  for (int i = 0; i < N; i++) {
-    auto key = value + std::to_string(i);
-    td::UInt256 hash;
-    sha256(key, hash.as_mutable_slice());
-    root = set(std::move(root), hash.as_slice().str(), value).move_as_ok();
-  }
-}
-
-static td::FlatHashMap<std::string, std::string> map;
-
-TEST(Tree, BenchB) {
-  std::string value(32, 'a');
-  for (int i = 0; i < N; i++) {
-    auto key = value + std::to_string(i);
-    td::UInt256 hash;
-    sha256(key, hash.as_mutable_slice());
-    map.emplace(hash.as_slice().str(), value);
-  }
-}
-
-TEST(Tree, BenchBB) {
-  std::string value(32, 'a');
-  for (int i = 0; i < N; i++) {
-    auto key = value + std::to_string(i);
-    td::UInt256 hash;
-    sha256(key, hash.as_mutable_slice());
-    CHECK(value == map.find(hash.as_slice().str())->second);
-  }
-}
-
-TEST(Tree, BenchBBB) {
-  std::string value(32, 'a');
-  for (int i = 0; i < N; i++) {
-    auto key = value + std::to_string(i);
-    td::UInt256 hash;
-    sha256(key, hash.as_mutable_slice());
-    map.emplace(hash.as_slice().str(), value);
-  }
-}
-
-// TODO: to we need both secret and local password?..
-// user_password is known only to user and never stored
-// secret used to decrypt the key and should be stored somewhere safe
-// encrypted_data could be stored anywhere
-//
-// Is it too complicated? Is it neccessary to encrypt
-static td::Result<EncryptedKey> create_new_encrypted_key(td::Slice user_password) {
-  TRY_RESULT(mnemonic, Mnemonic::create_new());
-  auto private_key = mnemonic.to_private_key();
-  auto decrypted_key = DecryptedKey(mnemonic.get_words(), std::move(private_key));
-  return decrypted_key.encrypt(user_password);
-}
-
-static td::Result<EncryptedKey> change_user_password(const EncryptedKey &encrypted_key, td::Slice user_password,
-                                                     td::Slice new_user_password) {
-  TRY_RESULT(decrypted_key, encrypted_key.decrypt(user_password, false));
-  return decrypted_key.encrypt(new_user_password);
-}
-
-static td::Result<td::SecureString> export_mnemonic(const EncryptedKey &encrypted_key, td::Slice user_password) {
-  TRY_RESULT(decrypted_key, encrypted_key.decrypt(user_password, false));
-  CHECK(decrypted_key.mnemonic_words.size() == 24);
-  size_t length = decrypted_key.mnemonic_words.size() - 1;
-  for (auto &word : decrypted_key.mnemonic_words) {
-    length += word.size();
-  }
-  td::SecureString res(length);
-  auto dest = res.as_mutable_slice();
-  bool is_first = true;
-  for (auto &word : decrypted_key.mnemonic_words) {
-    if (!is_first) {
-      dest[0] = ' ';
-      dest.remove_prefix(1);
-    } else {
-      is_first = false;
-    }
-    dest.copy_from(word);
-    dest.remove_prefix(word.size());
-  }
-  return res;
-}
-
-static td::Result<EncryptedKey> import_mnemonic(td::Slice mnemonic_words, td::Slice user_password) {
-  TRY_RESULT(mnemonic, Mnemonic::create(td::SecureString(mnemonic_words), td::SecureString()));
-  auto decrypted_key = DecryptedKey(mnemonic);
-  return decrypted_key.encrypt(user_password);
-}
-
-TEST(E2E, GenerateKeys) {
-  // generate key
-  auto encrypted_key = create_new_encrypted_key("user_password").move_as_ok();
-  change_user_password(encrypted_key, "bad_user_password", "user_password").ensure_error();
-  auto new_encrypted_key = change_user_password(encrypted_key, "user_password", "new_password").move_as_ok();
-  export_mnemonic(new_encrypted_key, "user_password").ensure_error();
-  auto mnemonic = export_mnemonic(new_encrypted_key, "new_password").move_as_ok();
-  auto other_encrypted_key = import_mnemonic(mnemonic, "new_password").move_as_ok();
-  CHECK(encrypted_key.o_public_key == new_encrypted_key.o_public_key);
-}
-
-TEST(E2E_API, Key) {
-  using namespace tde2e_api;
-  auto alice_pk = key_generate_private_key().value();
-  auto bob_pk = key_generate_private_key().value();
-  auto carol_pk = key_generate_private_key().value();
-
-  auto secret = key_from_bytes("secret").value();
-  auto bad_secret = key_from_bytes("bad_secret").value();
-
-  auto encrypted_alice_pk = key_to_encrypted_private_key(alice_pk, secret).value();
-  key_from_encrypted_private_key(encrypted_alice_pk, bad_secret).error();
-  auto alice_pk_copy = key_from_encrypted_private_key(encrypted_alice_pk, secret).value();
-
-  ASSERT_EQ(key_to_public_key(alice_pk).value(), key_to_public_key(alice_pk_copy).value());
-  auto alice_PK = key_from_public_key(key_to_public_key(alice_pk).value()).value();
-  auto bob_PK = key_from_public_key(key_to_public_key(bob_pk).value()).value();
-  auto carol_PK = key_from_public_key(key_to_public_key(carol_pk).value()).value();
-
-  key_destroy(alice_pk_copy).value();
-  key_to_public_key(alice_pk_copy).error();
-
-  auto words = key_to_words(alice_pk).value();
-  ASSERT_EQ(alice_pk, key_from_words(std::move(words)).value());
-
-  auto shared_key_ab = key_from_ecdh(alice_pk, bob_PK).value();
-  auto shared_key_ba = key_from_ecdh(bob_pk, alice_PK).value();
-  auto shared_key_ac = key_from_ecdh(alice_pk, carol_PK).value();
-
-  auto encrypted = encrypt_message_for_many({shared_key_ab, shared_key_ac}, "very secret message").value();
-  ASSERT_EQ(
-      "very secret message",
-      decrypt_message_for_many(shared_key_ba, encrypted.encrypted_headers[0], encrypted.encrypted_message).value());
-  decrypt_message_for_many(shared_key_ac, encrypted.encrypted_headers[0], encrypted.encrypted_message).error();
-
-  auto encrypted2 = encrypt_message_for_one(shared_key_ab, "very secret message").value();
-  ASSERT_EQ("very secret message", decrypt_message_for_one(shared_key_ba, encrypted2).value());
-  decrypt_message_for_one(shared_key_ac, encrypted2).error();
-  key_destroy_all();
-}
-
-TEST(E2E_API, HandshakeVerify) {
-  using namespace tde2e_api;
-  auto bob_id = 123;
-  auto alice_id = 321;
-  auto alice_pk = key_generate_private_key().value();
-  auto bob_pk = key_generate_private_key().value();
-
-  // Bob creates handshake
-  auto bob_handshake_id = handshake_create_for_bob(bob_id, bob_pk).value();
-  // Start is shown on QR
-  auto start = handshake_bob_send_start(bob_handshake_id).value();
-
-  // Alice received qr, received information about qr from server and create handshake
-  auto alice_handshake_id =
-      handshake_create_for_alice(alice_id, alice_pk, bob_id, key_to_public_key(bob_pk).value(), start).value();
-  auto accept = handshake_alice_send_accept(alice_handshake_id).value();
-  // Alice knows shared key. She knows that it is known to author of QR code, but not necessary to bob_pk owner.
-  auto shared_a = handshake_get_shared_key_id(alice_handshake_id).value();
-
-  // Bob receives accept and generates finish
-  auto finish =
-      handshake_bob_receive_accept_send_finish(bob_handshake_id, alice_id, key_to_public_key(alice_pk).value(), accept)
-          .value();
-  // At this point Bob "verified" Alice
-  // Bob knows shared key
-  auto shared_b = handshake_get_shared_key_id(bob_handshake_id).value();
-
-  // Alice receives and verifies finish
-  handshake_alice_receive_finish(alice_handshake_id, finish).value();
-  // At this point Alice "verified" Bob
-
-  ASSERT_EQ(shared_a, shared_b);
-  handshake_destroy_all();
-}
-
-TEST(E2E_API, HandshakeLogin) {
-  using namespace tde2e_api;
-
-  auto alice_id = 321;
-  auto alice_pk = key_generate_private_key().value();
-
-  auto bob_login_id = login_create_for_bob().value();
-  auto start = login_bob_send_start(bob_login_id).value();
-  auto alice_data = login_create_for_alice(alice_id, alice_pk, start).value();
-  auto received_alice_pk =
-      login_finish_for_bob(bob_login_id, alice_id, key_to_public_key(alice_pk).value(), alice_data).value();
-  ASSERT_EQ(key_to_public_key(alice_pk).value(), key_to_public_key(received_alice_pk).value());
-  login_destroy_all();
-}
-
-TEST(Container, Basic) {
-  using namespace tde2e_api;
-  Container<TypeInfo<int, false, false>, TypeInfo<std::string, false, true>, TypeInfo<std::vector<int>, true, false>,
-            TypeInfo<std::vector<std::string>, true, true>>
-      container;
-
-  auto id_int = container.emplace<int>(1);
-  td::UInt256 hash;
-  hash.as_mutable_slice().fill(7);
-  auto id_string = container.try_emplace<std::string>(hash, "hello");
-  auto id_string_2 = container
-                         .try_build<std::string>(hash,
-                                                 []() -> td::Result<std::string> {
-                                                   UNREACHABLE();
-                                                   return "...";
-                                                 })
-                         .move_as_ok();
-  ASSERT_EQ(id_string, id_string_2);
-  auto id_vec_int = container
-                        .try_build<std::vector<int>>({},
-                                                     []() -> td::Result<std::vector<int>> {
-                                                       return std::vector<int>{1, 2, 3, 4};
-                                                     })
-                        .move_as_ok();
-  auto id_vec_string = container.emplace<std::vector<std::string>>(std::vector<std::string>{"a", "b", "c"});
-
-  container.get_shared<int>(id_int).ensure();
-  container.get_shared<std::string>(id_string).ensure();
-  container.get_unique<std::vector<int>>(id_vec_int).ensure();
-  container.get_unique<std::vector<std::string>>(id_vec_string).ensure();
-
-  container.get_shared<int>(id_string).ensure_error();
-  container.get_shared<std::string>(id_int).ensure_error();
-  container.get_unique<std::vector<int>>(id_vec_string).ensure_error();
-  container.get_unique<std::vector<std::string>>(id_vec_int).ensure_error();
-}
-
-struct BaselineBlockchainState {
-  std::map<std::string, std::string> key_value_state;
-  GroupStateRef group_state;
-  GroupSharedKeyRef shared_key;
-  td::int32 height{-1};
-  std::string get_value(const std::string &key) const {
-    auto it = key_value_state.find(key);
-    if (it == key_value_state.end()) {
-      return "";
-    }
-    return it->second;
-  }
-  void apply_changes(const std::vector<Change> &changes) {
-    for (const auto &change_v : changes) {
-      std::visit(td::overloaded([&](const ChangeNoop &) {},
-                                [&](const ChangeSetValue &change) { key_value_state[change.key] = change.value; },
-                                [&](const ChangeSetGroupState &change) { group_state = change.group_state; },
-                                [&](const ChangeSetSharedKey &change) { shared_key = change.shared_key; }),
-                 change_v.value);
-    }
-    height++;
-  }
-};
-
-S_TEST(E2E_Blockchain, Base) {
-  TEST_TRY_RESULT(pk, PrivateKey::generate());
-  TEST_TRY_RESULT(pk2, PrivateKey::generate());
-
-  BlockchainTester tester;
-
-  auto to_hash = [](td::Slice key) {
-    std::string res(32, 0);
-    td::sha256(key, res);
-    return res;
-  };
-
-  auto a = to_hash("a");
-  auto b = to_hash("b");
-
-  TEST_ASSERT_EQ("", tester.get_value(a), "empty blockchain");
-  TEST_ASSERT_EQ("", tester.get_value(b), "empty blockchain");
-  using BB = BlockBuilder;
-
-  TEST_TRY_STATUS(
-      tester.expect_ok({BB::make_set_value(a, "hello a"),
-                        BB::make_group_change({{2, GroupParticipantFlags::AllPermissions, pk2.to_public_key()}})},
-                       pk2));
-  TEST_ASSERT_EQ("hello a", tester.get_value(a), "hello a");
-  TEST_TRY_STATUS(tester.expect_error(E::Any, {BB::make_set_value(a, "hello b")}, pk));
-  TEST_TRY_STATUS(tester.expect_ok({BB::make_set_value(a, "hello b")}, pk2));
-  TEST_ASSERT_EQ("hello b", tester.get_value(a), "...");
-  tester.reindex();
-  TEST_ASSERT_EQ("hello b", tester.get_value(a), "...");
-  return td::Status::OK();
-}
-
-S_TEST(E2E_Blockchain, Stress) {
-  BlockchainTester tester;
-  TEST_TRY_RESULT(pk, PrivateKey::generate());
-
-  td::Random::Xorshift128plus rnd(123);
-  auto gen_string = [&](auto from, auto to, auto size) {
-    std::string s(size, 0);
-    for (auto &c : s) {
-      c = static_cast<char>(rnd.fast(from, to));
-    }
-    return s;
-  };
-
-  auto to_hash = [](td::Slice key) {
-    std::string res(32, 0);
-    td::sha256(key, res);
-    return res;
-  };
-  auto gen_key = [&] {
-    auto len = rnd.fast(1, 15);
-    return to_hash(gen_string('a', 'b', len));
-  };
-
-  auto gen_value = [&] {
-    std::string res(rnd.fast(1, 64), 0);
-    rnd.bytes(res);
-    return res;
-  };
-
-  auto gen_query = [&] {
-    std::vector<std::string> keys(rnd.fast(1, 1));
-    for (auto &key : keys) {
-      key = gen_key();
-    };
-    return keys;
-  };
-
-  auto gen_changes = [&] {
-    auto n = rnd.fast(1, 2);
-    std::vector<Change> changes;
-    changes.reserve(n);
-    for (int i = 0; i < n; i++) {
-      changes.push_back(BlockBuilder::make_set_value(gen_key(), gen_value()));
-    }
-    return changes;
-  };
-
-  auto run_get = [&] {
-    auto keys = gen_query();
-    TEST_TRY_STATUS(tester.get_values(keys));
-    return td::Status::OK();
-  };
-
-  auto run_set = [&] {
-    auto changes = gen_changes();
-    TEST_TRY_STATUS(tester.apply(changes, pk));
-    return td::Status::OK();
-  };
-
-  auto reindex = [&] {
-    tester.reindex();
-    return td::Status::OK();
-  };
-
-  td::RandomSteps steps{{{run_set, 10}, {run_get, 100}, {reindex, 1}}};
-  for (size_t i = 0; i < 10000; i++) {
-    steps.step(rnd);
-  }
-  return td::Status::OK();
-}
-
-using namespace tde2e_api;
-S_TEST(E2E_Blockchain, Call) {
-  SET_VERBOSITY_LEVEL(3);
-  CallTester ct;
-  TEST_TRY_STATUS(ct.start_call({0, 1, 2}));
-  TEST_TRY_STATUS(ct.check_shared_key());
-  TEST_TRY_STATUS(ct.check_emoji_hash());
-  TEST_TRY_STATUS(ct.update_call(0, {0, 3, 4, 5}));
-  TEST_TRY_STATUS(ct.check_shared_key());
-  TEST_TRY_STATUS(ct.check_emoji_hash());
-  return td::Status::OK();
-}
-
-TEST(Call, Basic_API) {
-  using namespace tde2e_api;
-  auto F = [](Result<std::string> block) -> Result<std::string> {
-    if (block.is_ok()) {
-      return Blockchain::from_local_to_server(block.value());
-    }
-    return block;
-  };
-
-  auto key0 = key_generate_temporary_private_key().value();
-  auto pkey0 = key_from_public_key(key_to_public_key(key0).value()).value();
-  auto key1 = key_generate_temporary_private_key().value();
-  auto pkey1 = key_from_public_key(key_to_public_key(key1).value()).value();
-  auto key2 = key_generate_temporary_private_key().value();
-  auto pkey2 = key_from_public_key(key_to_public_key(key2).value()).value();
-  auto key3 = key_generate_temporary_private_key().value();
-  auto pkey3 = key_from_public_key(key_to_public_key(key3).value()).value();
-
-  auto zero_block = F(call_create_zero_block(key0, CallState{0, {CallParticipant{-1, pkey0, 3}}})).value();
-
-  auto call1 = call_create(-1, key0, zero_block).value();
-  auto block0 = F(call_create_self_add_block(key1, zero_block, CallParticipant{1, pkey1, 3})).value();
-  call1 = call_create(1, key1, block0).value();
-
-  auto block1 = F(call_create_self_add_block(key2, block0, CallParticipant{2, pkey2, 3})).value();
-  call_apply_block(call1, block1).value();
-  auto call2 = call_create(2, key2, block1).value();
-  ASSERT_EQ(call_get_verification_words(call2).value().words, call_get_verification_words(call1).value().words);
-
-  auto block2 = F(call_create_change_state_block(
-                      call2, CallState{0, {CallParticipant{2, pkey2, 3}, CallParticipant{3, pkey3, 3}}}))
-                    .value();
-  call_describe_block(block2).value();
-  auto call3 = call_create(3, key3, block2).value();
-
-  call_apply_block(call2, block2).value();
-  CHECK(!call_apply_block(call1, block2).is_ok());
-
-  // call2 and call3 verification
-  ASSERT_EQ(call_get_verification_words(call2).value().words, call_get_verification_words(call3).value().words);
-
-  auto block31 = F(call_create_change_state_block(
-                       call2, CallState{0, {CallParticipant{2, pkey2, 3}, CallParticipant{3, pkey3, 3}}}))
-                     .value();
-
-  call_apply_block(call2, block31).value();
-  auto commit2 = F(call_pull_outbound_messages(call2).value().at(0)).value();
-
-  call_describe_message(commit2).value();
-
-  call_receive_inbound_message(call2, commit2).value();
-  call_receive_inbound_message(call3, commit2).value();
-
-  call_apply_block(call3, block31).value();
-  auto commit3 = F(call_pull_outbound_messages(call3).value().at(0)).value();
-
-  CHECK(commit2 != commit3);
-  call_receive_inbound_message(call2, commit3).value();
-  call_receive_inbound_message(call3, commit3).value();
-
-  auto reveal2 = F(call_pull_outbound_messages(call2).value().at(0)).value();
-  auto reveal3 = F(call_pull_outbound_messages(call3).value().at(0)).value();
-  call_receive_inbound_message(call2, reveal2).value();
-  call_receive_inbound_message(call2, reveal3).value();
-  call_receive_inbound_message(call3, reveal2).value();
-  call_receive_inbound_message(call3, reveal3).value();
-
-  ASSERT_EQ(call_get_verification_state(call2).value().emoji_hash.value(),
-            call_get_verification_state(call3).value().emoji_hash.value());
-
-  auto e = call_encrypt(call2, 1, "hello").value();
-  auto e2 = call_encrypt(call2, 1, "hello").value();
-  CHECK(e != "hello");
-  LOG(ERROR) << e.size();
-  ASSERT_TRUE(!call_decrypt(call2, 2, 1, e).is_ok());
-  // ASSERT_TRUE(!call_decrypt(call3, 2, 2, e).is_ok()); Uncomment if we will validate channel_id
-  ASSERT_TRUE(!call_decrypt(call3, 1, 1, e).is_ok());
-  ASSERT_EQ("hello", call_decrypt(call3, 2, 1, e).value());
-  ASSERT_TRUE(!call_decrypt(call3, 2, 1, e).is_ok());
-
-  auto block3 = F(call_create_change_state_block(
-                      call2, CallState{0, {CallParticipant{2, pkey2, 3}, CallParticipant{3, pkey3, 3}}}))
-                    .value();
-  call_apply_block(call3, block3).value();
-  ASSERT_TRUE(!call_decrypt(call3, 2, 1, e).is_ok());
-  ASSERT_EQ("hello", call_decrypt(call3, 2, 1, e2).value());
-  ASSERT_TRUE(call_decrypt(call2, 3, 1, call_encrypt(call3, 1, "bye").value()).is_ok());
-
-  LOG(ERROR) << call_describe(call1).value();
-  LOG(ERROR) << call_describe(call2).value();
-
-  key_destroy_all();
-  call_destroy_all();
-}
-
-TEST(State, Basic) {
-  SET_VERBOSITY_LEVEL(3);
-  using namespace tde2e_api;
-
-  ServerBlockchain kv_server;
-  auto pk = key_generate_private_key().value();
-  auto storage = storage_create(pk, {}).value();
-
-  auto contact_pk = key_generate_private_key().value();
-  auto contact_public_key = key_from_public_key(key_to_public_key(contact_pk).value()).value();
-
-  storage_get_contact(storage, contact_public_key);
-  storage_get_contact(storage, contact_public_key).error();
-  Entry<Name> entry_name;
-  entry_name.value = Name{"A", "B"};
-  auto signed_entry_name = storage_sign_entry(contact_pk, entry_name).value();
-  auto update_id = storage_update_contact(storage, contact_public_key, signed_entry_name).value();
-  (void)update_id;
-
-  auto load_proofs = [&] {
-    auto keys = storage_get_blockchain_state(storage).value().required_proofs;
-    auto proof = kv_server.get_proof(storage_blockchain_height(storage).value(), keys).move_as_ok();
-    storage_blockchain_add_proof(storage, proof, keys).value();
-  };
-  auto update_blockchain = [&] {
-    auto block = storage_get_blockchain_state(storage).value().next_suggested_block;
-    if (block.empty()) {
-      return;
-    }
-    kv_server.try_apply_block(block).ensure();
-    storage_blockchain_apply_block(storage, block).value();
-  };
-
-  load_proofs();
-
-  Value value;
-  value.o_name = entry_name;
-
-  ASSERT_EQ(std::optional<Value>(), storage_get_contact(storage, contact_public_key).value());
-  ASSERT_EQ(value, storage_get_contact_optimistic(storage, contact_public_key).value());
-
-  update_blockchain();
-  ASSERT_EQ(value, storage_get_contact(storage, contact_public_key).value());
-}
-
-#if TG_ENGINE
-int main() {
-  td::TestsRunner::get_default().run_all();
-  _Exit(0);
-}
-#endif
diff --git a/third-party/td/td/tde2e/test/encryption.cpp b/third-party/td/td/tde2e/test/encryption.cpp
deleted file mode 100644
index 3ff96d5c63..0000000000
--- a/third-party/td/td/tde2e/test/encryption.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/e2e/MessageEncryption.h"
-
-#include "EncryptionTestVectors.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/simple_tests.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-
-namespace tde2e_core {
-class EncryptionTest {
- public:
-  static td::SecureString encrypt_data_with_deterministic_padding(td::Slice data, td::Slice secret) {
-    auto prefix = MessageEncryption::gen_deterministic_prefix(data.size(), 16);
-    td::SecureString combined(prefix.size() + data.size());
-    combined.as_mutable_slice().copy_from(prefix);
-    combined.as_mutable_slice().substr(prefix.size()).copy_from(data);
-    return MessageEncryption::encrypt_data_with_prefix(combined.as_slice(), secret);
-  }
-};
-}  // namespace tde2e_core
-
-using namespace tde2e_core;
-
-S_TEST(EncryptionTest, test_vectors) {
-  auto test_vectors = get_test_vectors();
-  for (const auto &vec : test_vectors) {
-    LOG(INFO) << "Testing vector: " << vec.name;
-
-    // Convert hex strings to binary
-    auto secret = td::hex_decode(vec.secret).move_as_ok();
-    auto data = td::hex_decode(vec.data).move_as_ok();
-    auto header = td::hex_decode(vec.header).move_as_ok();
-    auto expected_encrypted = td::hex_decode(vec.encrypted).move_as_ok();
-    auto expected_encrypted_header = td::hex_decode(vec.encrypted_header).move_as_ok();
-
-    // Test encrypt_data with deterministic padding
-    auto encrypted = EncryptionTest::encrypt_data_with_deterministic_padding(data, secret);
-
-    // Test encrypt_header
-    auto encrypted_header_result = MessageEncryption::encrypt_header(header, encrypted, secret);
-    ASSERT_TRUE(encrypted_header_result.is_ok());
-
-    // For simplicity during debugging, verify only decryption
-    auto decrypted_result = MessageEncryption::decrypt_data(expected_encrypted, secret);
-    ASSERT_TRUE(decrypted_result.is_ok());
-    ASSERT_EQ(td::hex_encode(decrypted_result.ok()), vec.data);
-
-    auto decrypted_header_result =
-        MessageEncryption::decrypt_header(expected_encrypted_header, expected_encrypted, secret);
-    ASSERT_TRUE(decrypted_header_result.is_ok());
-    ASSERT_EQ(td::hex_encode(decrypted_header_result.ok()), vec.header);
-  }
-  return td::Status::OK();
-}
diff --git a/third-party/td/td/tdnet/CMakeLists.txt b/third-party/td/td/tdnet/CMakeLists.txt
deleted file mode 100644
index ad4e8f5755..0000000000
--- a/third-party/td/td/tdnet/CMakeLists.txt
+++ /dev/null
@@ -1,90 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-option(TDNET_ENABLE_INSTALL "Enable installation of the library." ON)
-
-if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
-  set(CMAKE_INSTALL_LIBDIR "lib")
-endif()
-
-if (NOT OPENSSL_FOUND)
-  find_package(OpenSSL REQUIRED)
-  find_package(ZLIB REQUIRED)
-endif()
-
-set(TDNET_SOURCE
-  td/net/GetHostByNameActor.cpp
-  td/net/HttpChunkedByteFlow.cpp
-  td/net/HttpConnectionBase.cpp
-  td/net/HttpContentLengthByteFlow.cpp
-  td/net/HttpFile.cpp
-  td/net/HttpInboundConnection.cpp
-  td/net/HttpOutboundConnection.cpp
-  td/net/HttpProxy.cpp
-  td/net/HttpQuery.cpp
-  td/net/HttpReader.cpp
-  td/net/Socks5.cpp
-  td/net/SslCtx.cpp
-  td/net/SslStream.cpp
-  td/net/TcpListener.cpp
-  td/net/TransparentProxy.cpp
-  td/net/Wget.cpp
-
-  td/net/GetHostByNameActor.h
-  td/net/HttpChunkedByteFlow.h
-  td/net/HttpConnectionBase.h
-  td/net/HttpContentLengthByteFlow.h
-  td/net/HttpFile.h
-  td/net/HttpHeaderCreator.h
-  td/net/HttpInboundConnection.h
-  td/net/HttpOutboundConnection.h
-  td/net/HttpProxy.h
-  td/net/HttpQuery.h
-  td/net/HttpReader.h
-  td/net/NetStats.h
-  td/net/Socks5.h
-  td/net/SslCtx.h
-  td/net/SslStream.h
-  td/net/TcpListener.h
-  td/net/TransparentProxy.h
-  td/net/Wget.h
-)
-
-if (APPLE_WATCH)
-  set(TDNET_SOURCE
-    ${TDNET_SOURCE}
-    td/net/DarwinHttp.mm
-    td/net/DarwinHttp.h
-  )
-  set_source_files_properties(td/net/DarwinHttp.mm PROPERTIES COMPILE_FLAGS -fobjc-arc)
-endif()
-
-add_library(tdnet STATIC ${TDNET_SOURCE})
-target_include_directories(tdnet PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-target_include_directories(tdnet SYSTEM PRIVATE $<BUILD_INTERFACE:${OPENSSL_INCLUDE_DIR}>)
-target_link_libraries(tdnet PUBLIC tdutils tdactor)
-if (NOT EMSCRIPTEN)
-  target_link_libraries(tdnet PRIVATE ${OPENSSL_SSL_LIBRARY})
-endif()
-target_link_libraries(tdnet PRIVATE ${OPENSSL_CRYPTO_LIBRARY} ${CMAKE_DL_LIBS} ${ZLIB_LIBRARIES})
-
-if (WIN32)
-  if (MINGW)
-    target_link_libraries(tdnet PRIVATE ws2_32 mswsock crypt32)
-  else()
-    target_link_libraries(tdnet PRIVATE ws2_32 Mswsock Crypt32)
-  endif()
-endif()
-
-if (APPLE_WATCH)
-  find_library(FOUNDATION_LIBRARY Foundation REQUIRED)
-  target_link_libraries(tdnet PRIVATE ${FOUNDATION_LIBRARY})
-endif()
-
-if (TDNET_ENABLE_INSTALL)
-  install(TARGETS tdnet EXPORT TdStaticTargets
-    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  )
-endif()
diff --git a/third-party/td/td/tdnet/td/net/DarwinHttp.h b/third-party/td/td/tdnet/td/net/DarwinHttp.h
deleted file mode 100644
index b8ca027bf7..0000000000
--- a/third-party/td/td/tdnet/td/net/DarwinHttp.h
+++ /dev/null
@@ -1,21 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class DarwinHttp {
- public:
-  static void get(CSlice url, Promise<BufferSlice> promise);
-  static void post(CSlice url, Slice data, Promise<BufferSlice> promise);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/DarwinHttp.mm b/third-party/td/td/tdnet/td/net/DarwinHttp.mm
deleted file mode 100644
index 0d56cffde1..0000000000
--- a/third-party/td/td/tdnet/td/net/DarwinHttp.mm
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/DarwinHttp.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-
-#import <Foundation/Foundation.h>
-
-namespace td {
-
-namespace {
-
-NSURLSession *getSession() {
-  static NSURLSession *urlSession = [] {
-    auto configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
-    configuration.networkServiceType = NSURLNetworkServiceTypeResponsiveData;
-    configuration.timeoutIntervalForResource = 90;
-    configuration.waitsForConnectivity = true;
-    return [NSURLSession sessionWithConfiguration:configuration];
-  }();
-  return urlSession;
-}
-
-NSString *to_ns_string(CSlice slice) {
-  return [NSString stringWithUTF8String:slice.c_str()];
-}
-
-NSData *to_ns_data(Slice data) {
-  return [NSData dataWithBytes:static_cast<const void *>(data.data()) length:data.size()];
-}
-
-auto http_get(CSlice url) {
-  auto nsurl = [NSURL URLWithString:to_ns_string(url)];
-  auto request = [NSURLRequest requestWithURL:nsurl];
-  return request;
-}
-
-auto http_post(CSlice url, Slice data) {
-  auto nsurl = [NSURL URLWithString:to_ns_string(url)];
-  auto request = [NSMutableURLRequest requestWithURL:nsurl];
-  [request setHTTPMethod:@"POST"];
-  [request setHTTPBody:to_ns_data(data)];
-  [request setValue:@"keep-alive" forHTTPHeaderField:@"Connection"];
-  [request setValue:@"" forHTTPHeaderField:@"Host"];
-  [request setValue:to_ns_string(PSLICE() << data.size()) forHTTPHeaderField:@"Content-Length"];
-  [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
-  return request;
-}
-
-void http_send(NSURLRequest *request, Promise<BufferSlice> promise) {
-  __block auto callback = std::move(promise);
-  NSURLSessionDataTask *dataTask =
-    [getSession()
-      dataTaskWithRequest:request
-      completionHandler:
-        ^(NSData *data, NSURLResponse *response, NSError *error) {
-          if (error == nil) {
-            callback.set_value(BufferSlice(Slice((const char *)([data bytes]), [data length])));
-          } else {
-            callback.set_error(Status::Error(static_cast<int32>([error code]), "HTTP request failed"));
-          }
-        }];
-  [dataTask resume];
-}
-}  // namespace
-
-void DarwinHttp::get(CSlice url, Promise<BufferSlice> promise) {
-  return http_send(http_get(url), std::move(promise));
-}
-
-void DarwinHttp::post(CSlice url, Slice data, Promise<BufferSlice> promise) {
-  return http_send(http_post(url, data), std::move(promise));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/GetHostByNameActor.cpp b/third-party/td/td/tdnet/td/net/GetHostByNameActor.cpp
deleted file mode 100644
index 04968632d7..0000000000
--- a/third-party/td/td/tdnet/td/net/GetHostByNameActor.cpp
+++ /dev/null
@@ -1,213 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/GetHostByNameActor.h"
-
-#include "td/net/HttpQuery.h"
-#include "td/net/SslCtx.h"
-#include "td/net/Wget.h"
-
-#include "td/utils/common.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-namespace td {
-namespace detail {
-
-class GoogleDnsResolver final : public Actor {
- public:
-  GoogleDnsResolver(std::string host, bool prefer_ipv6, Promise<IPAddress> promise)
-      : host_(std::move(host)), prefer_ipv6_(prefer_ipv6), promise_(std::move(promise)) {
-  }
-
- private:
-  std::string host_;
-  bool prefer_ipv6_;
-  Promise<IPAddress> promise_;
-  ActorOwn<Wget> wget_;
-  double begin_time_ = 0;
-
-  void start_up() final {
-    auto r_address = IPAddress::get_ip_address(host_);
-    if (r_address.is_ok()) {
-      promise_.set_value(r_address.move_as_ok());
-      return stop();
-    }
-
-    const int timeout = 10;
-    const int ttl = 3;
-    begin_time_ = Time::now();
-    auto wget_promise = PromiseCreator::lambda([actor_id = actor_id(this)](Result<unique_ptr<HttpQuery>> r_http_query) {
-      send_closure(actor_id, &GoogleDnsResolver::on_result, std::move(r_http_query));
-    });
-    wget_ = create_actor<Wget>(
-        "GoogleDnsResolver", std::move(wget_promise),
-        PSTRING() << "https://dns.google/resolve?name=" << url_encode(host_) << "&type=" << (prefer_ipv6_ ? 28 : 1),
-        std::vector<std::pair<string, string>>({{"Host", "dns.google"}}), timeout, ttl, prefer_ipv6_,
-        SslCtx::VerifyPeer::Off);
-  }
-
-  static Result<IPAddress> get_ip_address(Result<unique_ptr<HttpQuery>> r_http_query) {
-    TRY_RESULT(http_query, std::move(r_http_query));
-
-    auto get_ip_address = [](JsonValue &answer) -> Result<IPAddress> {
-      auto &array = answer.get_array();
-      if (array.empty()) {
-        return Status::Error("Failed to parse DNS result: Answer is an empty array");
-      }
-      if (array[0].type() != JsonValue::Type::Object) {
-        return Status::Error("Failed to parse DNS result: Answer[0] is not an object");
-      }
-      auto &answer_0 = array[0].get_object();
-      TRY_RESULT(ip_str, answer_0.get_required_string_field("data"));
-      IPAddress ip;
-      TRY_STATUS(ip.init_host_port(ip_str, 0));
-      return ip;
-    };
-    if (!http_query->get_arg("Answer").empty()) {
-      TRY_RESULT(answer, json_decode(http_query->get_arg("Answer")));
-      if (answer.type() != JsonValue::Type::Array) {
-        return Status::Error("Expected JSON array");
-      }
-      return get_ip_address(answer);
-    } else {
-      TRY_RESULT(json_value, json_decode(http_query->content_));
-      if (json_value.type() != JsonValue::Type::Object) {
-        return Status::Error("Failed to parse DNS result: not an object");
-      }
-      auto &object = json_value.get_object();
-      TRY_RESULT(answer, object.extract_required_field("Answer", JsonValue::Type::Array));
-      return get_ip_address(answer);
-    }
-  }
-
-  void on_result(Result<unique_ptr<HttpQuery>> r_http_query) {
-    auto end_time = Time::now();
-    auto result = get_ip_address(std::move(r_http_query));
-    VLOG(dns_resolver) << "Init IPv" << (prefer_ipv6_ ? "6" : "4") << " host = " << host_ << " in "
-                       << end_time - begin_time_ << " seconds to "
-                       << (result.is_ok() ? (PSLICE() << result.ok()) : CSlice("[invalid]"));
-    promise_.set_result(std::move(result));
-    stop();
-  }
-};
-
-class NativeDnsResolver final : public Actor {
- public:
-  NativeDnsResolver(std::string host, bool prefer_ipv6, Promise<IPAddress> promise)
-      : host_(std::move(host)), prefer_ipv6_(prefer_ipv6), promise_(std::move(promise)) {
-  }
-
- private:
-  std::string host_;
-  bool prefer_ipv6_;
-  Promise<IPAddress> promise_;
-
-  void start_up() final {
-    IPAddress ip;
-    auto begin_time = Time::now();
-    auto status = ip.init_host_port(host_, 0, prefer_ipv6_);
-    auto end_time = Time::now();
-    VLOG(dns_resolver) << "Init host = " << host_ << " in " << end_time - begin_time << " seconds to " << ip;
-    if (status.is_error()) {
-      promise_.set_error(std::move(status));
-    } else {
-      promise_.set_value(std::move(ip));
-    }
-    stop();
-  }
-};
-
-}  // namespace detail
-
-int VERBOSITY_NAME(dns_resolver) = VERBOSITY_NAME(DEBUG);
-
-GetHostByNameActor::GetHostByNameActor(Options options) : options_(std::move(options)) {
-  CHECK(!options_.resolver_types.empty());
-}
-
-void GetHostByNameActor::run(string host, int port, bool prefer_ipv6, Promise<IPAddress> promise) {
-  TRY_RESULT_PROMISE(promise, ascii_host, idn_to_ascii(host));
-  if (ascii_host.empty()) {
-    return promise.set_error(Status::Error("Host is empty"));
-  }
-
-  auto begin_time = Time::now();
-  auto &value = cache_[prefer_ipv6].emplace(ascii_host, Value{{}, begin_time - 1.0}).first->second;
-  if (value.expires_at > begin_time) {
-    return promise.set_result(value.get_ip_port(port));
-  }
-
-  auto &query_ptr = active_queries_[prefer_ipv6][ascii_host];
-  if (query_ptr == nullptr) {
-    query_ptr = make_unique<Query>();
-  }
-  auto &query = *query_ptr;
-  query.promises.emplace_back(port, std::move(promise));
-  if (query.query.empty()) {
-    CHECK(query.promises.size() == 1);
-    query.real_host = std::move(host);
-    query.begin_time = Time::now();
-    run_query(std::move(ascii_host), prefer_ipv6, query);
-  }
-}
-
-void GetHostByNameActor::run_query(std::string host, bool prefer_ipv6, Query &query) {
-  auto promise = PromiseCreator::lambda([actor_id = actor_id(this), host, prefer_ipv6](Result<IPAddress> res) mutable {
-    send_closure(actor_id, &GetHostByNameActor::on_query_result, std::move(host), prefer_ipv6, std::move(res));
-  });
-
-  CHECK(query.query.empty());
-  CHECK(query.pos < options_.resolver_types.size());
-  auto resolver_type = options_.resolver_types[query.pos++];
-  query.query = [&] {
-    switch (resolver_type) {
-      case ResolverType::Native:
-        return ActorOwn<>(create_actor_on_scheduler<detail::NativeDnsResolver>(
-            "NativeDnsResolver", options_.scheduler_id, std::move(host), prefer_ipv6, std::move(promise)));
-      case ResolverType::Google:
-        return ActorOwn<>(create_actor_on_scheduler<detail::GoogleDnsResolver>(
-            "GoogleDnsResolver", options_.scheduler_id, std::move(host), prefer_ipv6, std::move(promise)));
-      default:
-        UNREACHABLE();
-        return ActorOwn<>();
-    }
-  }();
-}
-
-void GetHostByNameActor::on_query_result(std::string host, bool prefer_ipv6, Result<IPAddress> result) {
-  auto query_it = active_queries_[prefer_ipv6].find(host);
-  CHECK(query_it != active_queries_[prefer_ipv6].end());
-  auto &query = *query_it->second;
-  CHECK(!query.promises.empty());
-  CHECK(!query.query.empty());
-
-  if (result.is_error() && query.pos < options_.resolver_types.size()) {
-    query.query.reset();
-    return run_query(std::move(host), prefer_ipv6, query);
-  }
-
-  auto end_time = Time::now();
-  VLOG(dns_resolver) << "Init host = " << query.real_host << " in total of " << end_time - query.begin_time
-                     << " seconds to " << (result.is_ok() ? (PSLICE() << result.ok()) : CSlice("[invalid]"));
-
-  auto promises = std::move(query.promises);
-  auto value_it = cache_[prefer_ipv6].find(host);
-  CHECK(value_it != cache_[prefer_ipv6].end());
-  auto cache_timeout = result.is_ok() ? options_.ok_timeout : options_.error_timeout;
-  value_it->second = Value{std::move(result), end_time + cache_timeout};
-  active_queries_[prefer_ipv6].erase(query_it);
-
-  for (auto &promise : promises) {
-    promise.second.set_result(value_it->second.get_ip_port(promise.first));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/GetHostByNameActor.h b/third-party/td/td/tdnet/td/net/GetHostByNameActor.h
deleted file mode 100644
index 2ff40166fb..0000000000
--- a/third-party/td/td/tdnet/td/net/GetHostByNameActor.h
+++ /dev/null
@@ -1,76 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-extern int VERBOSITY_NAME(dns_resolver);
-
-class GetHostByNameActor final : public Actor {
- public:
-  enum class ResolverType { Native, Google };
-
-  struct Options {
-    static constexpr int32 DEFAULT_CACHE_TIME = 60 * 29;       // 29 minutes
-    static constexpr int32 DEFAULT_ERROR_CACHE_TIME = 60 * 5;  // 5 minutes
-
-    vector<ResolverType> resolver_types{ResolverType::Native};
-    int32 scheduler_id{-1};
-    int32 ok_timeout{DEFAULT_CACHE_TIME};
-    int32 error_timeout{DEFAULT_ERROR_CACHE_TIME};
-  };
-
-  explicit GetHostByNameActor(Options options);
-
-  void run(std::string host, int port, bool prefer_ipv6, Promise<IPAddress> promise);
-
- private:
-  void on_query_result(std::string host, bool prefer_ipv6, Result<IPAddress> result);
-
-  struct Value {
-    Result<IPAddress> ip;
-    double expires_at;
-
-    Value(Result<IPAddress> ip, double expires_at) : ip(std::move(ip)), expires_at(expires_at) {
-    }
-
-    Result<IPAddress> get_ip_port(int port) const {
-      auto result = ip.clone();
-      if (result.is_ok()) {
-        result.ok_ref().set_port(port);
-      }
-      return result;
-    }
-  };
-  FlatHashMap<string, Value> cache_[2];
-
-  struct Query {
-    ActorOwn<> query;
-    size_t pos = 0;
-    string real_host;
-    double begin_time = 0.0;
-    std::vector<std::pair<int, Promise<IPAddress>>> promises;
-  };
-  FlatHashMap<string, unique_ptr<Query>> active_queries_[2];
-
-  Options options_;
-
-  void run_query(std::string host, bool prefer_ipv6, Query &query);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpChunkedByteFlow.cpp b/third-party/td/td/tdnet/td/net/HttpChunkedByteFlow.cpp
deleted file mode 100644
index 248588623e..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpChunkedByteFlow.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpChunkedByteFlow.h"
-
-#include "td/utils/find_boundary.h"
-#include "td/utils/format.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-bool HttpChunkedByteFlow::loop() {
-  bool result = false;
-  do {
-    if (state_ == State::ReadChunkLength) {
-      bool ok = find_boundary(input_->clone(), "\r\n", len_);
-      if (len_ > 8) {
-        finish(Status::Error(PSLICE() << "Too long length in chunked "
-                                      << input_->cut_head(len_).move_as_buffer_slice().as_slice()));
-        return false;
-      }
-      if (!ok) {
-        set_need_size(input_->size() + 1);
-        break;
-      }
-      auto s_len = input_->cut_head(len_).move_as_buffer_slice();
-      input_->advance(2);
-      len_ = hex_to_integer<size_t>(s_len.as_slice());
-      save_len_ = len_;
-      state_ = State::ReadChunkContent;
-    }
-
-    auto size = input_->size();
-    auto ready = min(len_, size);
-    auto need_size = min(MIN_UPDATE_SIZE, len_) + 2;
-    if (size < need_size) {
-      set_need_size(need_size);
-      break;
-    }
-    if (total_size_ > MAX_SIZE - ready) {
-      finish(Status::Error(PSLICE() << "Too big query " << tag("size", input_->size())));
-      return false;
-    }
-    total_size_ += ready;
-
-    output_.append(input_->cut_head(ready));
-    result = true;
-    len_ -= ready;
-
-    if (len_ == 0) {
-      if (input_->size() < 2) {
-        set_need_size(2);
-        break;
-      }
-      input_->advance(2);
-      total_size_ += 2;
-      if (save_len_ == 0) {
-        finish(Status::OK());
-        return false;
-      }
-      state_ = State::ReadChunkLength;
-    }
-  } while (false);
-  if (!is_input_active_ && !result) {
-    finish(Status::Error("Unexpected end of stream"));
-  }
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpChunkedByteFlow.h b/third-party/td/td/tdnet/td/net/HttpChunkedByteFlow.h
deleted file mode 100644
index d7fe37d8df..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpChunkedByteFlow.h
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/ByteFlow.h"
-
-#include <limits>
-
-namespace td {
-
-class HttpChunkedByteFlow final : public ByteFlowBase {
- public:
-  bool loop() final;
-
- private:
-  static constexpr size_t MAX_SIZE = std::numeric_limits<uint32>::max();  // some reasonable limit
-  static constexpr size_t MIN_UPDATE_SIZE = 1 << 14;
-  enum class State { ReadChunkLength, ReadChunkContent, OK };
-  State state_ = State::ReadChunkLength;
-  size_t len_ = 0;
-  size_t save_len_ = 0;
-  size_t total_size_ = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpConnectionBase.cpp b/third-party/td/td/tdnet/td/net/HttpConnectionBase.cpp
deleted file mode 100644
index 5ccbbaf429..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpConnectionBase.cpp
+++ /dev/null
@@ -1,210 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpConnectionBase.h"
-
-#include "td/net/HttpHeaderCreator.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/PollableFd.h"
-
-namespace td {
-namespace detail {
-
-HttpConnectionBase::HttpConnectionBase(State state, BufferedFd<SocketFd> fd, SslStream ssl_stream, size_t max_post_size,
-                                       size_t max_files, int32 idle_timeout, int32 slow_scheduler_id)
-    : state_(state)
-    , fd_(std::move(fd))
-    , ssl_stream_(std::move(ssl_stream))
-    , max_post_size_(max_post_size)
-    , max_files_(max_files)
-    , idle_timeout_(idle_timeout)
-    , slow_scheduler_id_(slow_scheduler_id) {
-  CHECK(state_ != State::Close);
-
-  if (ssl_stream_) {
-    read_source_ >> ssl_stream_.read_byte_flow() >> read_sink_;
-    write_source_ >> ssl_stream_.write_byte_flow() >> write_sink_;
-  } else {
-    read_source_ >> read_sink_;
-    write_source_ >> write_sink_;
-  }
-  peer_address_.init_peer_address(fd_).ignore();
-}
-
-void HttpConnectionBase::live_event() {
-  if (idle_timeout_ != 0) {
-    set_timeout_in(idle_timeout_);
-  }
-}
-
-void HttpConnectionBase::start_up() {
-  Scheduler::subscribe(fd_.get_poll_info().extract_pollable_fd(this));
-  reader_.init(read_sink_.get_output(), max_post_size_, max_files_);
-  if (state_ == State::Read) {
-    current_query_ = make_unique<HttpQuery>();
-  }
-  live_event();
-  yield();
-}
-void HttpConnectionBase::tear_down() {
-  Scheduler::unsubscribe_before_close(fd_.get_poll_info().get_pollable_fd_ref());
-  fd_.close();
-}
-
-void HttpConnectionBase::write_next_noflush(BufferSlice buffer) {
-  CHECK(state_ == State::Write);
-  write_buffer_.append(std::move(buffer));
-}
-void HttpConnectionBase::write_next(BufferSlice buffer) {
-  write_next_noflush(std::move(buffer));
-  loop();
-}
-
-void HttpConnectionBase::write_ok() {
-  CHECK(state_ == State::Write);
-  current_query_ = make_unique<HttpQuery>();
-  state_ = State::Read;
-  live_event();
-  loop();
-}
-
-void HttpConnectionBase::write_error(Status error) {
-  CHECK(state_ == State::Write);
-  LOG(WARNING) << "Close HTTP connection: " << error;
-  state_ = State::Close;
-  loop();
-}
-
-void HttpConnectionBase::timeout_expired() {
-  LOG(INFO) << "Idle timeout expired";
-
-  if (fd_.need_flush_write()) {
-    on_error(Status::Error("Write timeout expired"));
-  } else if (state_ == State::Read) {
-    on_error(Status::Error("Read timeout expired"));
-  }
-
-  stop();
-}
-void HttpConnectionBase::loop() {
-  if (ssl_stream_) {
-    //ssl_stream_.read_byte_flow().set_need_size(0);
-    ssl_stream_.write_byte_flow().reset_need_size();
-  }
-  sync_with_poll(fd_);
-  if (can_read_local(fd_)) {
-    LOG(DEBUG) << "Can read from the connection";
-    auto r = fd_.flush_read();
-    if (r.is_error()) {
-      if (!begins_with(r.error().message(), "SSL error {336134278")) {  // if error is not yet outputted
-        LOG(INFO) << "Receive flush_read error: " << r.error();
-      }
-      on_error(Status::Error(r.error().public_message()));
-      return stop();
-    }
-  }
-  read_source_.wakeup();
-
-  // TODO: read_next even when state_ == State::Write
-
-  bool want_read = false;
-  bool can_be_slow = slow_scheduler_id_ == -1;
-  if (state_ == State::Read) {
-    auto res = reader_.read_next(current_query_.get(), can_be_slow);
-    if (res.is_error()) {
-      if (res.error().message() == "SLOW") {
-        LOG(INFO) << "Slow HTTP connection: migrate to " << slow_scheduler_id_;
-        CHECK(!can_be_slow);
-        yield();
-        migrate(slow_scheduler_id_);
-        slow_scheduler_id_ = -1;
-        return;
-      }
-      live_event();
-      state_ = State::Write;
-      if (res.error().code() == 500) {
-        LOG(WARNING) << "Failed to process an HTTP query: " << res.error();
-      } else {
-        LOG(INFO) << res.error();
-      }
-      HttpHeaderCreator hc;
-      hc.init_status_line(res.error().code());
-      hc.set_content_size(0);
-      write_buffer_.append(hc.finish().ok());
-      close_after_write_ = true;
-      on_error(Status::Error(res.error().public_message()));
-    } else if (res.ok() == 0) {
-      state_ = State::Write;
-      LOG(DEBUG) << "Send query to handler";
-      live_event();
-      current_query_->peer_address_ = peer_address_;
-      on_query(std::move(current_query_));
-    } else {
-      want_read = true;
-    }
-  }
-
-  write_source_.wakeup();
-
-  if (can_write_local(fd_)) {
-    LOG(DEBUG) << "Can write to the connection";
-    auto r = fd_.flush_write();
-    if (r.is_error()) {
-      LOG(INFO) << "Receive flush_write error: " << r.error();
-      on_error(Status::Error(r.error().public_message()));
-    }
-    if (close_after_write_ && !fd_.need_flush_write()) {
-      return stop();
-    }
-  }
-
-  Status pending_error;
-  if (fd_.get_poll_info().get_flags_local().has_pending_error()) {
-    pending_error = fd_.get_pending_error();
-  }
-  if (pending_error.is_ok() && write_sink_.status().is_error()) {
-    pending_error = std::move(write_sink_.status());
-  }
-  if (pending_error.is_ok() && read_sink_.status().is_error()) {
-    pending_error = std::move(read_sink_.status());
-  }
-  if (pending_error.is_error()) {
-    LOG(INFO) << pending_error;
-    if (!close_after_write_) {
-      on_error(Status::Error(pending_error.public_message()));
-    }
-    state_ = State::Close;
-  }
-
-  if (can_close_local(fd_)) {
-    LOG(DEBUG) << "Can close the connection";
-    state_ = State::Close;
-  }
-  if (state_ == State::Close) {
-    if (fd_.need_flush_write()) {
-      LOG(INFO) << "Close nonempty connection";
-    }
-    if (want_read && (!fd_.input_buffer().empty() || current_query_->type_ != HttpQuery::Type::Empty)) {
-      LOG(INFO) << "Close connection while reading request/response";
-    }
-    return stop();
-  }
-}
-
-void HttpConnectionBase::on_start_migrate(int32 sched_id) {
-  Scheduler::unsubscribe(fd_.get_poll_info().get_pollable_fd_ref());
-}
-
-void HttpConnectionBase::on_finish_migrate() {
-  Scheduler::subscribe(fd_.get_poll_info().extract_pollable_fd(this));
-  live_event();
-}
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpConnectionBase.h b/third-party/td/td/tdnet/td/net/HttpConnectionBase.h
deleted file mode 100644
index b2915aefa1..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpConnectionBase.h
+++ /dev/null
@@ -1,77 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/HttpQuery.h"
-#include "td/net/HttpReader.h"
-#include "td/net/SslStream.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/ByteFlow.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-namespace detail {
-
-class HttpConnectionBase : public Actor {
- public:
-  void write_next_noflush(BufferSlice buffer);
-  void write_next(BufferSlice buffer);
-  void write_ok();
-  void write_error(Status error);
-
- protected:
-  enum class State { Read, Write, Close };
-  HttpConnectionBase(State state, BufferedFd<SocketFd> fd, SslStream ssl_stream, size_t max_post_size, size_t max_files,
-                     int32 idle_timeout, int32 slow_scheduler_id);
-
- private:
-  State state_;
-
-  BufferedFd<SocketFd> fd_;
-  IPAddress peer_address_;
-  SslStream ssl_stream_;
-
-  ByteFlowSource read_source_{&fd_.input_buffer()};
-  ByteFlowSink read_sink_;
-
-  ChainBufferWriter write_buffer_;
-  ChainBufferReader write_buffer_reader_ = write_buffer_.extract_reader();
-  ByteFlowSource write_source_{&write_buffer_reader_};
-  ByteFlowMoveSink write_sink_{&fd_.output_buffer()};
-
-  size_t max_post_size_;
-  size_t max_files_;
-  int32 idle_timeout_;
-  HttpReader reader_;
-  unique_ptr<HttpQuery> current_query_;
-  bool close_after_write_ = false;
-
-  int32 slow_scheduler_id_{-1};
-
-  void live_event();
-
-  void start_up() final;
-  void tear_down() final;
-  void timeout_expired() final;
-  void loop() final;
-
-  void on_start_migrate(int32 sched_id) final;
-  void on_finish_migrate() final;
-
-  virtual void on_query(unique_ptr<HttpQuery> query) = 0;
-  virtual void on_error(Status error) = 0;
-};
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpContentLengthByteFlow.cpp b/third-party/td/td/tdnet/td/net/HttpContentLengthByteFlow.cpp
deleted file mode 100644
index a06e3197dd..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpContentLengthByteFlow.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpContentLengthByteFlow.h"
-
-#include "td/utils/Status.h"
-
-namespace td {
-
-bool HttpContentLengthByteFlow::loop() {
-  auto ready_size = input_->size();
-  if (ready_size > len_) {
-    ready_size = len_;
-  }
-  auto need_size = min(MIN_UPDATE_SIZE, len_);
-  if (ready_size < need_size) {
-    set_need_size(need_size);
-    return false;
-  }
-  output_.append(input_->cut_head(ready_size));
-  len_ -= ready_size;
-  if (len_ == 0) {
-    finish(Status::OK());
-    return false;
-  }
-  if (!is_input_active_) {
-    finish(Status::Error("Unexpected end of stream"));
-    return false;
-  }
-  return true;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpContentLengthByteFlow.h b/third-party/td/td/tdnet/td/net/HttpContentLengthByteFlow.h
deleted file mode 100644
index 3df1178dda..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpContentLengthByteFlow.h
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/ByteFlow.h"
-
-namespace td {
-
-class HttpContentLengthByteFlow final : public ByteFlowBase {
- public:
-  HttpContentLengthByteFlow() = default;
-  explicit HttpContentLengthByteFlow(size_t len) : len_(len) {
-  }
-  bool loop() final;
-
- private:
-  static constexpr size_t MIN_UPDATE_SIZE = 1 << 14;
-  size_t len_ = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpFile.cpp b/third-party/td/td/tdnet/td/net/HttpFile.cpp
deleted file mode 100644
index 48c914ad40..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpFile.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpFile.h"
-
-#include "td/net/HttpReader.h"
-
-#include "td/utils/format.h"
-
-namespace td {
-
-HttpFile::~HttpFile() {
-  if (!temp_file_name.empty()) {
-    HttpReader::delete_temp_file(temp_file_name);
-  }
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const HttpFile &file) {
-  return sb << tag("name", file.name) << tag("size", file.size);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpFile.h b/third-party/td/td/tdnet/td/net/HttpFile.h
deleted file mode 100644
index 7e5dbc5d91..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpFile.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class HttpFile {
- public:
-  string field_name;
-  string name;
-  string content_type;
-  int64 size;
-  string temp_file_name;
-
-  HttpFile(string field_name, string name, string content_type, int64 size, string temp_file_name)
-      : field_name(std::move(field_name))
-      , name(std::move(name))
-      , content_type(std::move(content_type))
-      , size(size)
-      , temp_file_name(std::move(temp_file_name)) {
-  }
-
-  HttpFile(const HttpFile &) = delete;
-  HttpFile &operator=(const HttpFile &) = delete;
-
-  HttpFile(HttpFile &&other) noexcept
-      : field_name(std::move(other.field_name))
-      , name(std::move(other.name))
-      , content_type(std::move(other.content_type))
-      , size(other.size)
-      , temp_file_name(std::move(other.temp_file_name)) {
-    other.temp_file_name.clear();
-  }
-
-  HttpFile &operator=(HttpFile &&) = delete;
-
-  ~HttpFile();
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const HttpFile &file);
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpHeaderCreator.h b/third-party/td/td/tdnet/td/net/HttpHeaderCreator.h
deleted file mode 100644
index 9b815346c5..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpHeaderCreator.h
+++ /dev/null
@@ -1,153 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class HttpHeaderCreator {
- public:
-  static constexpr size_t MAX_HEADER = 4096;
-  HttpHeaderCreator() : sb_(MutableSlice{header_, MAX_HEADER}) {
-  }
-  void init_ok() {
-    sb_ = StringBuilder(MutableSlice{header_, MAX_HEADER});
-    sb_ << "HTTP/1.1 200 OK\r\n";
-  }
-  void init_get(Slice url) {
-    sb_ = StringBuilder(MutableSlice{header_, MAX_HEADER});
-    sb_ << "GET " << url << " HTTP/1.1\r\n";
-  }
-  void init_post(Slice url) {
-    sb_ = StringBuilder(MutableSlice{header_, MAX_HEADER});
-    sb_ << "POST " << url << " HTTP/1.1\r\n";
-  }
-  void init_error(int code, Slice reason) {
-    sb_ = StringBuilder(MutableSlice{header_, MAX_HEADER});
-    sb_ << "HTTP/1.1 " << code << " " << reason << "\r\n";
-  }
-  void init_status_line(int http_status_code) {
-    init_error(http_status_code, get_status_line(http_status_code));
-  }
-  void add_header(Slice key, Slice value) {
-    sb_ << key << ": " << value << "\r\n";
-  }
-  void set_content_type(Slice type) {
-    add_header("Content-Type", type);
-  }
-  void set_content_size(size_t size) {
-    add_header("Content-Length", PSLICE() << size);
-  }
-  void set_keep_alive() {
-    add_header("Connection", "keep-alive");
-  }
-
-  Result<Slice> finish(Slice content = {}) TD_WARN_UNUSED_RESULT {
-    sb_ << "\r\n";
-    if (!content.empty()) {
-      sb_ << content;
-    }
-    if (sb_.is_error()) {
-      return Status::Error("Too many headers");
-    }
-    return sb_.as_cslice();
-  }
-
- private:
-  static CSlice get_status_line(int http_status_code) {
-    if (http_status_code == 200) {
-      return CSlice("OK");
-    }
-    switch (http_status_code) {
-      case 201:
-        return CSlice("Created");
-      case 202:
-        return CSlice("Accepted");
-      case 204:
-        return CSlice("No Content");
-      case 206:
-        return CSlice("Partial Content");
-      case 301:
-        return CSlice("Moved Permanently");
-      case 302:
-        return CSlice("Found");
-      case 303:
-        return CSlice("See Other");
-      case 304:
-        return CSlice("Not Modified");
-      case 307:
-        return CSlice("Temporary Redirect");
-      case 308:
-        return CSlice("Permanent Redirect");
-      case 400:
-        return CSlice("Bad Request");
-      case 401:
-        return CSlice("Unauthorized");
-      case 403:
-        return CSlice("Forbidden");
-      case 404:
-        return CSlice("Not Found");
-      case 405:
-        return CSlice("Method Not Allowed");
-      case 406:
-        return CSlice("Not Acceptable");
-      case 408:
-        return CSlice("Request Timeout");
-      case 409:
-        return CSlice("Conflict");
-      case 410:
-        return CSlice("Gone");
-      case 411:
-        return CSlice("Length Required");
-      case 412:
-        return CSlice("Precondition Failed");
-      case 413:
-        return CSlice("Request Entity Too Large");
-      case 414:
-        return CSlice("Request-URI Too Long");
-      case 415:
-        return CSlice("Unsupported Media Type");
-      case 416:
-        return CSlice("Range Not Satisfiable");
-      case 417:
-        return CSlice("Expectation Failed");
-      case 418:
-        return CSlice("I'm a teapot");
-      case 421:
-        return CSlice("Misdirected Request");
-      case 426:
-        return CSlice("Upgrade Required");
-      case 429:
-        return CSlice("Too Many Requests");
-      case 431:
-        return CSlice("Request Header Fields Too Large");
-      case 480:
-        return CSlice("Temporarily Unavailable");
-      case 501:
-        return CSlice("Not Implemented");
-      case 502:
-        return CSlice("Bad Gateway");
-      case 503:
-        return CSlice("Service Unavailable");
-      case 505:
-        return CSlice("HTTP Version Not Supported");
-      default:
-        LOG_IF(ERROR, http_status_code != 500) << "Unsupported status code " << http_status_code << " returned";
-        return CSlice("Internal Server Error");
-    }
-  }
-
-  char header_[MAX_HEADER];
-  StringBuilder sb_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpInboundConnection.cpp b/third-party/td/td/tdnet/td/net/HttpInboundConnection.cpp
deleted file mode 100644
index 0c5aecc0d3..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpInboundConnection.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpInboundConnection.h"
-
-#include "td/net/SslStream.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-HttpInboundConnection::HttpInboundConnection(BufferedFd<SocketFd> fd, size_t max_post_size, size_t max_files,
-                                             int32 idle_timeout, ActorShared<Callback> callback,
-                                             int32 slow_scheduler_id)
-    : HttpConnectionBase(State::Read, std::move(fd), SslStream(), max_post_size, max_files, idle_timeout,
-                         slow_scheduler_id)
-    , callback_(std::move(callback)) {
-}
-
-void HttpInboundConnection::on_query(unique_ptr<HttpQuery> query) {
-  CHECK(!callback_.empty());
-  send_closure(callback_, &Callback::handle, std::move(query), ActorOwn<HttpInboundConnection>(actor_id(this)));
-}
-
-void HttpInboundConnection::on_error(Status error) {
-  // nothing to do
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpInboundConnection.h b/third-party/td/td/tdnet/td/net/HttpInboundConnection.h
deleted file mode 100644
index 3dcb59e975..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpInboundConnection.h
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/HttpConnectionBase.h"
-#include "td/net/HttpQuery.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/BufferedFd.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class HttpInboundConnection final : public detail::HttpConnectionBase {
- public:
-  class Callback : public Actor {
-   public:
-    virtual void handle(unique_ptr<HttpQuery> query, ActorOwn<HttpInboundConnection> connection) = 0;
-  };
-  // Inherited interface
-  // void write_next(BufferSlice buffer);
-  // void write_ok();
-  // void write_error(Status error);
-
-  HttpInboundConnection(BufferedFd<SocketFd> fd, size_t max_post_size, size_t max_files, int32 idle_timeout,
-                        ActorShared<Callback> callback, int32 slow_scheduler_id = -1);
-
- private:
-  void on_query(unique_ptr<HttpQuery> query) final;
-  void on_error(Status error) final;
-  void hangup() final {
-    callback_.release();
-    stop();
-  }
-  ActorShared<Callback> callback_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpOutboundConnection.cpp b/third-party/td/td/tdnet/td/net/HttpOutboundConnection.cpp
deleted file mode 100644
index 1a975c5ee1..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpOutboundConnection.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpOutboundConnection.h"
-
-#include "td/utils/common.h"
-
-namespace td {
-
-void HttpOutboundConnection::on_query(unique_ptr<HttpQuery> query) {
-  CHECK(!callback_.empty());
-  send_closure(callback_, &Callback::handle, std::move(query));
-}
-
-void HttpOutboundConnection::on_error(Status error) {
-  CHECK(!callback_.empty());
-  send_closure(callback_, &Callback::on_connection_error, std::move(error));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpOutboundConnection.h b/third-party/td/td/tdnet/td/net/HttpOutboundConnection.h
deleted file mode 100644
index cec8fc49b5..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpOutboundConnection.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/HttpConnectionBase.h"
-#include "td/net/HttpQuery.h"
-#include "td/net/SslStream.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/BufferedFd.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class HttpOutboundConnection final : public detail::HttpConnectionBase {
- public:
-  class Callback : public Actor {
-   public:
-    virtual void handle(unique_ptr<HttpQuery> query) = 0;
-    virtual void on_connection_error(Status error) = 0;  // TODO rename to on_error
-  };
-  HttpOutboundConnection(BufferedFd<SocketFd> fd, SslStream ssl_stream, size_t max_post_size, size_t max_files,
-                         int32 idle_timeout, ActorShared<Callback> callback, int32 slow_scheduler_id = -1)
-      : HttpConnectionBase(HttpConnectionBase::State::Write, std::move(fd), std::move(ssl_stream), max_post_size,
-                           max_files, idle_timeout, slow_scheduler_id)
-      , callback_(std::move(callback)) {
-  }
-  // Inherited interface
-  // void write_next(BufferSlice buffer);
-  // void write_ok();
-  // void write_error(Status error);
-
- private:
-  void on_query(unique_ptr<HttpQuery> query) final;
-  void on_error(Status error) final;
-  void hangup() final {
-    callback_.release();
-    HttpConnectionBase::hangup();
-  }
-  ActorShared<Callback> callback_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpProxy.cpp b/third-party/td/td/tdnet/td/net/HttpProxy.cpp
deleted file mode 100644
index 80b0d7b43d..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpProxy.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpProxy.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-void HttpProxy::send_connect() {
-  VLOG(proxy) << "Send CONNECT to proxy";
-  CHECK(state_ == State::SendConnect);
-  state_ = State::WaitConnectResponse;
-
-  string host = PSTRING() << ip_address_.get_ip_host() << ':' << ip_address_.get_port();
-  string proxy_authorization;
-  if (!username_.empty() || !password_.empty()) {
-    auto userinfo = PSTRING() << username_ << ':' << password_;
-    proxy_authorization = PSTRING() << "Proxy-Authorization: Basic " << base64_encode(userinfo) << "\r\n";
-    VLOG(proxy) << "Use credentials to connect to proxy: " << proxy_authorization;
-  }
-  fd_.output_buffer().append(PSLICE() << "CONNECT " << host << " HTTP/1.1\r\n"
-                                      << "Host: " << host << "\r\n"
-                                      << proxy_authorization << "\r\n");
-}
-
-Status HttpProxy::wait_connect_response() {
-  CHECK(state_ == State::WaitConnectResponse);
-  auto it = fd_.input_buffer().clone();
-  VLOG(proxy) << "Receive CONNECT response of size " << it.size();
-  if (it.size() < 12 + 1 + 1) {
-    return Status::OK();
-  }
-  char begin_buf[12];
-  MutableSlice begin(begin_buf, 12);
-  it.advance(12, begin);
-  if ((begin.substr(0, 10) != "HTTP/1.1 2" && begin.substr(0, 10) != "HTTP/1.0 2") || !is_digit(begin[10]) ||
-      !is_digit(begin[11])) {
-    char buf[1024];
-    size_t len = min(sizeof(buf), it.size());
-    it.advance(len, MutableSlice{buf, sizeof(buf)});
-    VLOG(proxy) << "Failed to connect: " << format::escaped(begin) << format::escaped(Slice(buf, len));
-    return Status::Error(PSLICE() << "Failed to connect to " << ip_address_.get_ip_host() << ':'
-                                  << ip_address_.get_port());
-  }
-
-  size_t total_size = 12;
-  char c;
-  MutableSlice c_slice(&c, 1);
-  while (!it.empty()) {
-    it.advance(1, c_slice);
-    total_size++;
-    if (c == '\n') {
-      break;
-    }
-  }
-  if (it.empty()) {
-    return Status::OK();
-  }
-
-  char prev = '\n';
-  size_t pos = 0;
-  bool found = false;
-  while (!it.empty()) {
-    it.advance(1, c_slice);
-    total_size++;
-    if (c == '\n') {
-      if (pos == 0 || (pos == 1 && prev == '\r')) {
-        found = true;
-        break;
-      }
-      pos = 0;
-    } else {
-      pos++;
-    }
-    prev = c;
-  }
-  if (!found) {
-    CHECK(it.empty());
-    return Status::OK();
-  }
-
-  fd_.input_buffer().advance(total_size);
-  stop();
-  return Status::OK();
-}
-
-Status HttpProxy::loop_impl() {
-  switch (state_) {
-    case State::SendConnect:
-      send_connect();
-      break;
-    case State::WaitConnectResponse:
-      TRY_STATUS(wait_connect_response());
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return Status::OK();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpProxy.h b/third-party/td/td/tdnet/td/net/HttpProxy.h
deleted file mode 100644
index 93d916e1d8..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpProxy.h
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/TransparentProxy.h"
-
-#include "td/utils/Status.h"
-
-namespace td {
-
-class HttpProxy final : public TransparentProxy {
- public:
-  using TransparentProxy::TransparentProxy;
-
- private:
-  enum class State { SendConnect, WaitConnectResponse } state_ = State::SendConnect;
-
-  void send_connect();
-  Status wait_connect_response();
-
-  Status loop_impl() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpQuery.cpp b/third-party/td/td/tdnet/td/net/HttpQuery.cpp
deleted file mode 100644
index dcbbd3f212..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpQuery.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpQuery.h"
-
-#include "td/utils/misc.h"
-
-#include <algorithm>
-
-namespace td {
-
-Slice HttpQuery::get_header(Slice key) const {
-  auto it = std::find_if(headers_.begin(), headers_.end(),
-                         [&key](const std::pair<MutableSlice, MutableSlice> &s) { return s.first == key; });
-  return it == headers_.end() ? Slice() : it->second;
-}
-
-MutableSlice HttpQuery::get_arg(Slice key) const {
-  auto it = std::find_if(args_.begin(), args_.end(),
-                         [&key](const std::pair<MutableSlice, MutableSlice> &s) { return s.first == key; });
-  return it == args_.end() ? MutableSlice() : it->second;
-}
-
-vector<std::pair<string, string>> HttpQuery::get_args() const {
-  vector<std::pair<string, string>> res;
-  res.reserve(args_.size());
-  for (auto &it : args_) {
-    res.emplace_back(it.first.str(), it.second.str());
-  }
-  return res;
-}
-
-int HttpQuery::get_retry_after() const {
-  auto value = get_header("retry-after");
-  if (value.empty()) {
-    return 0;
-  }
-  auto r_retry_after = to_integer_safe<int>(value);
-  if (r_retry_after.is_error()) {
-    return 0;
-  }
-
-  return td::max(0, r_retry_after.ok());
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const HttpQuery &q) {
-  switch (q.type_) {
-    case HttpQuery::Type::Empty:
-      sb << "EMPTY";
-      return sb;
-    case HttpQuery::Type::Get:
-      sb << "GET";
-      break;
-    case HttpQuery::Type::Post:
-      sb << "POST";
-      break;
-    case HttpQuery::Type::Response:
-      sb << "RESPONSE";
-      break;
-  }
-  if (q.type_ == HttpQuery::Type::Response) {
-    sb << ":" << q.code_ << ":" << q.reason_;
-  } else {
-    sb << ":" << q.url_path_;
-    for (auto &key_value : q.args_) {
-      sb << ":[" << key_value.first << ":" << key_value.second << "]";
-    }
-  }
-  if (q.keep_alive_) {
-    sb << ":keep-alive";
-  }
-  sb << "\n";
-  for (auto &key_value : q.headers_) {
-    sb << key_value.first << "=" << key_value.second << "\n";
-  }
-  sb << "BEGIN CONTENT\n";
-  sb << q.content_;
-  sb << "END CONTENT\n";
-
-  return sb;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpQuery.h b/third-party/td/td/tdnet/td/net/HttpQuery.h
deleted file mode 100644
index 5d31f1d707..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpQuery.h
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/HttpFile.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class HttpQuery {
- public:
-  enum class Type : int8 { Empty, Get, Post, Response };
-
-  vector<BufferSlice> container_;
-  Type type_ = Type::Empty;
-  int32 code_ = 0;
-  MutableSlice url_path_;
-  vector<std::pair<MutableSlice, MutableSlice>> args_;
-  MutableSlice reason_;
-
-  bool keep_alive_ = true;
-  vector<std::pair<MutableSlice, MutableSlice>> headers_;
-  vector<HttpFile> files_;
-  MutableSlice content_;
-
-  IPAddress peer_address_;
-
-  Slice get_header(Slice key) const;
-
-  MutableSlice get_arg(Slice key) const;
-
-  vector<std::pair<string, string>> get_args() const;
-
-  int get_retry_after() const;
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const HttpQuery &q);
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpReader.cpp b/third-party/td/td/tdnet/td/net/HttpReader.cpp
deleted file mode 100644
index aadfb23355..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpReader.cpp
+++ /dev/null
@@ -1,882 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/HttpReader.h"
-
-#include "td/utils/filesystem.h"
-#include "td/utils/find_boundary.h"
-#include "td/utils/format.h"
-#include "td/utils/Gzip.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Parser.h"
-#include "td/utils/PathView.h"
-#include "td/utils/port/path.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <cstddef>
-#include <cstring>
-
-namespace td {
-
-void HttpReader::init(ChainBufferReader *input, size_t max_post_size, size_t max_files) {
-  input_ = input;
-  state_ = State::ReadHeaders;
-  headers_read_length_ = 0;
-  content_length_ = -1;
-  query_ = nullptr;
-  max_post_size_ = max_post_size;
-  max_files_ = max_files;
-  total_parameters_length_ = 0;
-  total_headers_length_ = 0;
-}
-
-Result<size_t> HttpReader::read_next(HttpQuery *query, bool can_be_slow) {
-  if (query_ != query) {
-    CHECK(query_ == nullptr);
-    query_ = query;
-  }
-
-  auto r_size = do_read_next(can_be_slow);
-  if (state_ != State::ReadHeaders && flow_sink_.is_ready() && r_size.is_ok() && r_size.ok() > 0) {
-    CHECK(flow_sink_.status().is_ok());
-    return Status::Error(400, "Bad Request: unexpected end of request content");
-  }
-  return r_size;
-}
-
-Result<size_t> HttpReader::do_read_next(bool can_be_slow) {
-  size_t need_size = input_->size() + 1;
-  while (true) {
-    if (state_ != State::ReadHeaders) {
-      gzip_flow_.wakeup();
-      flow_source_.wakeup();
-      if (flow_sink_.is_ready() && flow_sink_.status().is_error()) {
-        if (!temp_file_.empty()) {
-          clean_temporary_file();
-        }
-        return Status::Error(400, PSLICE() << "Bad Request: " << flow_sink_.status().message());
-      }
-      need_size = flow_source_.get_need_size();
-      if (need_size == 0) {
-        need_size = input_->size() + 1;
-      }
-    }
-    switch (state_) {
-      case State::ReadHeaders: {
-        auto result = split_header();
-        if (result.is_error() || result.ok() != 0) {
-          return result;
-        }
-        if (transfer_encoding_.empty() && content_length_ <= 0) {
-          break;
-        }
-
-        flow_source_ = ByteFlowSource(input_);
-        ByteFlowInterface *source = &flow_source_;
-        if (transfer_encoding_.empty()) {
-          content_length_flow_ = HttpContentLengthByteFlow(narrow_cast<size_t>(content_length_));
-          *source >> content_length_flow_;
-          source = &content_length_flow_;
-        } else if (transfer_encoding_ == "chunked") {
-          chunked_flow_ = HttpChunkedByteFlow();
-          *source >> chunked_flow_;
-          source = &chunked_flow_;
-        } else {
-          LOG(ERROR) << "Unsupported " << tag("transfer-encoding", transfer_encoding_);
-          return Status::Error(501, "Unimplemented: unsupported transfer-encoding");
-        }
-
-        if (content_encoding_.empty() || content_encoding_ == "none") {
-        } else if (content_encoding_ == "gzip" || content_encoding_ == "deflate") {
-          gzip_flow_ = GzipByteFlow(Gzip::Mode::Decode);
-          GzipByteFlow::Options options;
-          options.write_watermark.low = 0;
-          options.write_watermark.high = max(max_post_size_, MAX_TOTAL_PARAMETERS_LENGTH + 1);
-          gzip_flow_.set_options(options);
-          gzip_flow_.set_max_output_size(MAX_CONTENT_SIZE);
-          *source >> gzip_flow_;
-          source = &gzip_flow_;
-        } else {
-          LOG(WARNING) << "Unsupported " << tag("content-encoding", content_encoding_);
-          return Status::Error(415, "Unsupported Media Type: unsupported content-encoding");
-        }
-
-        flow_sink_ = ByteFlowSink();
-        *source >> flow_sink_;
-        content_ = flow_sink_.get_output();
-
-        if (content_length_ >= static_cast<int64>(MAX_CONTENT_SIZE)) {
-          return Status::Error(413, PSLICE() << "Request Entity Too Large: content length is " << content_length_);
-        }
-
-        if (content_type_lowercased_.find("multipart/form-data") != string::npos) {
-          state_ = State::ReadMultipartFormData;
-
-          const char *p = std::strstr(content_type_lowercased_.c_str(), "boundary");
-          if (p == nullptr) {
-            return Status::Error(400, "Bad Request: boundary not found");
-          }
-          p += 8;
-          std::ptrdiff_t offset = p - content_type_lowercased_.c_str();
-          p = static_cast<const char *>(
-              std::memchr(content_type_.begin() + offset, '=', content_type_.size() - offset));
-          if (p == nullptr) {
-            return Status::Error(400, "Bad Request: boundary value not found");
-          }
-          p++;
-          auto end_p = static_cast<const char *>(std::memchr(p, ';', content_type_.end() - p));
-          if (end_p == nullptr) {
-            end_p = content_type_.end();
-          }
-          if (*p == '"' && p + 1 < end_p && end_p[-1] == '"') {
-            p++;
-            end_p--;
-          }
-
-          CHECK(p != nullptr);
-          Slice boundary(p, static_cast<size_t>(end_p - p));
-          if (boundary.empty() || boundary.size() > MAX_BOUNDARY_LENGTH) {
-            return Status::Error(400, "Bad Request: boundary too big or empty");
-          }
-
-          boundary_ = "\r\n--" + boundary.str();
-          form_data_parse_state_ = FormDataParseState::SkipPrologue;
-          form_data_read_length_ = 0;
-          form_data_skipped_length_ = 0;
-        } else if (content_type_lowercased_.find("application/x-www-form-urlencoded") != string::npos ||
-                   content_type_lowercased_.find("application/json") != string::npos) {
-          state_ = State::ReadArgs;
-        } else {
-          form_data_skipped_length_ = 0;
-          state_ = State::ReadContent;
-        }
-        continue;
-      }
-      case State::ReadContent: {
-        if (content_->size() > max_post_size_) {
-          state_ = State::ReadContentToFile;
-          GzipByteFlow::Options options;
-          options.write_watermark.low = 4 << 20;
-          options.write_watermark.high = 8 << 20;
-          gzip_flow_.set_options(options);
-          continue;
-        }
-        if (flow_sink_.is_ready()) {
-          CHECK(query_->container_.size() == 1u);
-          query_->container_.emplace_back(content_->cut_head(content_->size()).move_as_buffer_slice());
-          query_->content_ = query_->container_.back().as_mutable_slice();
-          break;
-        }
-
-        return need_size;
-      }
-      case State::ReadContentToFile: {
-        if (!can_be_slow) {
-          return Status::Error("SLOW");
-        }
-        // save content to a file
-        if (temp_file_.empty()) {
-          auto open_status = open_temp_file("file");
-          if (open_status.is_error()) {
-            return Status::Error(500, "Internal Server Error: can't create temporary file");
-          }
-        }
-
-        auto size = content_->size();
-        bool restart = false;
-        if (size > (1 << 20) || flow_sink_.is_ready()) {
-          TRY_STATUS(save_file_part(content_->cut_head(size).move_as_buffer_slice()));
-          restart = true;
-        }
-        if (flow_sink_.is_ready()) {
-          query_->files_.emplace_back("file", "", content_type_.str(), file_size_, temp_file_name_);
-          close_temp_file();
-          break;
-        }
-        if (restart) {
-          continue;
-        }
-
-        return need_size;
-      }
-      case State::ReadArgs: {
-        auto size = content_->size();
-        if (size > MAX_TOTAL_PARAMETERS_LENGTH - total_parameters_length_) {
-          return Status::Error(413, "Request Entity Too Large: too many parameters");
-        }
-
-        if (flow_sink_.is_ready()) {
-          query_->container_.emplace_back(content_->cut_head(size).move_as_buffer_slice());
-          Status result;
-          if (content_type_lowercased_.find("application/x-www-form-urlencoded") != string::npos) {
-            result = parse_parameters(query_->container_.back().as_mutable_slice());
-          } else {
-            result = parse_json_parameters(query_->container_.back().as_mutable_slice());
-          }
-          if (result.is_error()) {
-            if (result.code() == 413) {
-              return std::move(result);
-            }
-            LOG(INFO) << result.message();
-          }
-          query_->content_ = MutableSlice();
-          break;
-        }
-
-        return need_size;
-      }
-      case State::ReadMultipartFormData: {
-        if (!content_->empty() || flow_sink_.is_ready()) {
-          TRY_RESULT(result, parse_multipart_form_data(can_be_slow));
-          if (result) {
-            break;
-          }
-        }
-        return need_size;
-      }
-      default:
-        UNREACHABLE();
-    }
-    break;
-  }
-
-  init(input_, max_post_size_, max_files_);
-  return 0;
-}
-
-// returns Status on wrong request
-// returns true if parsing has finished
-// returns false if need more data
-Result<bool> HttpReader::parse_multipart_form_data(bool can_be_slow) {
-  while (true) {
-    LOG(DEBUG) << "Parsing multipart form data in state " << static_cast<int32>(form_data_parse_state_)
-               << " with already read length " << form_data_read_length_;
-    switch (form_data_parse_state_) {
-      case FormDataParseState::SkipPrologue:
-        if (find_boundary(content_->clone(), {boundary_.c_str() + 2, boundary_.size() - 2}, form_data_read_length_)) {
-          size_t to_skip = form_data_read_length_ + (boundary_.size() - 2);
-          content_->advance(to_skip);
-          form_data_skipped_length_ += to_skip;
-          form_data_read_length_ = 0;
-
-          form_data_parse_state_ = FormDataParseState::ReadPartHeaders;
-          continue;
-        }
-
-        content_->advance(form_data_read_length_);
-        form_data_skipped_length_ += form_data_read_length_;
-        form_data_read_length_ = 0;
-        return false;
-      case FormDataParseState::ReadPartHeaders:
-        if (find_boundary(content_->clone(), "\r\n\r\n", form_data_read_length_)) {
-          total_headers_length_ += form_data_read_length_;
-          if (total_headers_length_ > MAX_TOTAL_HEADERS_LENGTH) {
-            return Status::Error(431, "Request Header Fields Too Large: total headers size exceeded");
-          }
-          if (form_data_read_length_ == 0) {
-            // there are no headers at all
-            return Status::Error(400, "Bad Request: headers in multipart/form-data are empty");
-          }
-
-          content_->advance(2);  // "\r\n" after boundary
-          auto headers = content_->cut_head(form_data_read_length_).move_as_buffer_slice();
-          CHECK(headers.as_slice().size() == form_data_read_length_);
-          LOG(DEBUG) << "Parse headers in multipart form data: \"" << headers.as_slice() << "\"";
-          content_->advance(2);
-
-          form_data_skipped_length_ += form_data_read_length_ + 4;
-          form_data_read_length_ = 0;
-
-          field_name_ = MutableSlice();
-          file_field_name_.clear();
-          field_content_type_ = "application/octet-stream";
-          file_name_.clear();
-          has_file_name_ = false;
-          CHECK(temp_file_.empty());
-          temp_file_name_.clear();
-
-          Parser headers_parser(headers.as_mutable_slice());
-          while (headers_parser.status().is_ok() && !headers_parser.data().empty()) {
-            MutableSlice header_name = headers_parser.read_till(':');
-            headers_parser.skip(':');
-            char *header_value_begin = headers_parser.ptr();
-            char *header_value_end;
-            do {
-              headers_parser.read_till('\r');
-              header_value_end = headers_parser.ptr();
-              headers_parser.skip('\r');
-              headers_parser.skip('\n');
-            } while (headers_parser.status().is_ok() &&
-                     (headers_parser.peek_char() == ' ' || headers_parser.peek_char() == '\t'));
-
-            MutableSlice header_value(header_value_begin, header_value_end);
-
-            header_name = trim(header_name);
-            header_value = trim(header_value);
-            to_lower_inplace(header_name);
-
-            if (header_name == "content-disposition") {
-              if (header_value.substr(0, 10) != "form-data;") {
-                return Status::Error(400, "Bad Request: expected form-data content disposition");
-              }
-              header_value.remove_prefix(10);
-              while (true) {
-                header_value = trim(header_value);
-                const auto *key_end =
-                    static_cast<const char *>(std::memchr(header_value.data(), '=', header_value.size()));
-                if (key_end == nullptr) {
-                  break;
-                }
-                size_t key_size = key_end - header_value.data();
-                auto key = trim(header_value.substr(0, key_size));
-
-                header_value.remove_prefix(key_size + 1);
-
-                while (!header_value.empty() && is_space(header_value[0])) {
-                  header_value.remove_prefix(1);
-                }
-
-                MutableSlice value;
-                if (!header_value.empty() && header_value[0] == '"') {  // quoted-string
-                  char *value_end = header_value.data() + 1;
-                  const char *pos = value_end;
-                  while (true) {
-                    if (pos == header_value.data() + header_value.size()) {
-                      return Status::Error(400, "Bad Request: unclosed quoted string in Content-Disposition header");
-                    }
-                    char c = *pos++;
-                    if (c == '"') {
-                      break;
-                    }
-                    if (c == '\\') {
-                      if (pos == header_value.data() + header_value.size()) {
-                        return Status::Error(400, "Bad Request: wrong escape sequence in Content-Disposition header");
-                      }
-                      c = *pos++;
-                    }
-                    *value_end++ = c;
-                  }
-                  value = header_value.substr(1, value_end - header_value.data() - 1);
-                  header_value.remove_prefix(pos - header_value.data());
-
-                  while (!header_value.empty() && is_space(header_value[0])) {
-                    header_value.remove_prefix(1);
-                  }
-                  if (!header_value.empty()) {
-                    if (header_value[0] != ';') {
-                      return Status::Error(400, "Bad Request: expected ';' in Content-Disposition header");
-                    }
-                    header_value.remove_prefix(1);
-                  }
-                } else {  // token
-                  auto value_end =
-                      static_cast<const char *>(std::memchr(header_value.data(), ';', header_value.size()));
-                  if (value_end != nullptr) {
-                    auto value_size = static_cast<size_t>(value_end - header_value.data());
-                    value = trim(header_value.substr(0, value_size));
-                    header_value.remove_prefix(value_size + 1);
-                  } else {
-                    value = trim(header_value);
-                    header_value = MutableSlice();
-                  }
-                }
-                value = url_decode_inplace(value, false);
-
-                if (key == "name") {
-                  field_name_ = value;
-                } else if (key == "filename") {
-                  file_name_ = value.str();
-                  has_file_name_ = true;
-                } else {
-                  // ignore unknown parts of header
-                }
-              }
-            } else if (header_name == "content-type") {
-              field_content_type_ = header_value.str();
-            } else {
-              // ignore unknown header
-            }
-          }
-
-          if (headers_parser.status().is_error()) {
-            return Status::Error(400, "Bad Request: can't parse form data headers");
-          }
-
-          if (field_name_.empty()) {
-            return Status::Error(400, "Bad Request: field name in multipart/form-data not found");
-          }
-
-          if (has_file_name_) {
-            // file
-            if (query_->files_.size() == max_files_) {
-              return Status::Error(413, "Request Entity Too Large: too many files attached");
-            }
-
-            // don't need to save headers for files
-            file_field_name_ = field_name_.str();
-            form_data_parse_state_ = FormDataParseState::ReadFile;
-          } else {
-            // save headers for query parameters. They contain header names
-            query_->container_.push_back(std::move(headers));
-            form_data_parse_state_ = FormDataParseState::ReadPartValue;
-          }
-
-          continue;
-        }
-
-        if (total_headers_length_ + form_data_read_length_ > MAX_TOTAL_HEADERS_LENGTH) {
-          return Status::Error(431, "Request Header Fields Too Large: total headers size exceeded");
-        }
-        return false;
-      case FormDataParseState::ReadPartValue:
-        if (find_boundary(content_->clone(), boundary_, form_data_read_length_)) {
-          if (total_parameters_length_ + form_data_read_length_ > MAX_TOTAL_PARAMETERS_LENGTH) {
-            return Status::Error(413, "Request Entity Too Large: too many parameters in form data");
-          }
-
-          query_->container_.emplace_back(content_->cut_head(form_data_read_length_).move_as_buffer_slice());
-          MutableSlice value = query_->container_.back().as_mutable_slice();
-          content_->advance(boundary_.size());
-          form_data_skipped_length_ += form_data_read_length_ + boundary_.size();
-          form_data_read_length_ = 0;
-
-          if (begins_with(field_content_type_, "application/x-www-form-urlencoded")) {
-            // treat value as ordinary parameters
-            auto result = parse_parameters(value);
-            if (result.is_error()) {
-              return std::move(result);
-            }
-          } else {
-            total_parameters_length_ += form_data_read_length_;
-            LOG(DEBUG) << "Get ordinary parameter in multipart form data: \"" << field_name_ << "\": \"" << value
-                       << "\"";
-            query_->args_.emplace_back(field_name_, value);
-          }
-
-          form_data_parse_state_ = FormDataParseState::CheckForLastBoundary;
-          continue;
-        }
-        CHECK(content_->size() < form_data_read_length_ + boundary_.size());
-
-        if (total_parameters_length_ + form_data_read_length_ > MAX_TOTAL_PARAMETERS_LENGTH) {
-          return Status::Error(413, "Request Entity Too Large: too many parameters in form data");
-        }
-        return false;
-      case FormDataParseState::ReadFile: {
-        if (!can_be_slow) {
-          return Status::Error("SLOW");
-        }
-        if (temp_file_.empty()) {
-          auto open_status = open_temp_file(file_name_);
-          if (open_status.is_error()) {
-            return Status::Error(500, "Internal Server Error: can't create temporary file");
-          }
-        }
-        if (find_boundary(content_->clone(), boundary_, form_data_read_length_)) {
-          auto file_part = content_->cut_head(form_data_read_length_).move_as_buffer_slice();
-          content_->advance(boundary_.size());
-          form_data_skipped_length_ += form_data_read_length_ + boundary_.size();
-          form_data_read_length_ = 0;
-
-          TRY_STATUS(save_file_part(std::move(file_part)));
-
-          query_->files_.emplace_back(file_field_name_, file_name_, field_content_type_, file_size_, temp_file_name_);
-          close_temp_file();
-
-          form_data_parse_state_ = FormDataParseState::CheckForLastBoundary;
-          continue;
-        }
-
-        // TODO optimize?
-        auto file_part = content_->cut_head(form_data_read_length_).move_as_buffer_slice();
-        form_data_skipped_length_ += form_data_read_length_;
-        form_data_read_length_ = 0;
-        CHECK(content_->size() < boundary_.size());
-
-        TRY_STATUS(save_file_part(std::move(file_part)));
-        return false;
-      }
-      case FormDataParseState::CheckForLastBoundary: {
-        if (content_->size() < 2) {
-          // need more data
-          return false;
-        }
-
-        auto range = content_->clone();
-        char x[2];
-        range.advance(2, {x, 2});
-        if (x[0] == '-' && x[1] == '-') {
-          content_->advance(2);
-          form_data_skipped_length_ += 2;
-          form_data_parse_state_ = FormDataParseState::SkipEpilogue;
-        } else {
-          form_data_parse_state_ = FormDataParseState::ReadPartHeaders;
-        }
-        continue;
-      }
-      case FormDataParseState::SkipEpilogue: {
-        size_t size = content_->size();
-        LOG(DEBUG) << "Skipping epilogue. Have " << size << " bytes";
-        content_->advance(size);
-        form_data_skipped_length_ += size;
-        // TODO(now): check if form_data_skipped_length is too big
-        return flow_sink_.is_ready();
-      }
-      default:
-        UNREACHABLE();
-    }
-    break;
-  }
-
-  return true;
-}
-
-Result<size_t> HttpReader::split_header() {
-  if (find_boundary(input_->clone(), "\r\n\r\n", headers_read_length_)) {
-    query_->container_.clear();
-    auto a = input_->cut_head(headers_read_length_ + 2);
-    auto b = a.move_as_buffer_slice();
-    query_->container_.emplace_back(std::move(b));
-    // query_->container_.emplace_back(input_->cut_head(headers_read_length_ + 2).move_as_buffer_slice());
-    CHECK(query_->container_.back().size() == headers_read_length_ + 2);
-    input_->advance(2);
-    total_headers_length_ = headers_read_length_;
-    auto status = parse_head(query_->container_.back().as_mutable_slice());
-    if (status.is_error()) {
-      return std::move(status);
-    }
-    return 0;
-  }
-
-  if (input_->size() > MAX_TOTAL_HEADERS_LENGTH) {
-    return Status::Error(431, "Request Header Fields Too Large: total headers size exceeded");
-  }
-  return input_->size() + 1;
-}
-
-void HttpReader::process_header(MutableSlice header_name, MutableSlice header_value) {
-  header_name = trim(header_name);
-  header_value = trim(header_value);  // TODO need to remove "\r\n" from value
-  to_lower_inplace(header_name);
-  LOG(DEBUG) << "Process header [" << header_name << "=>" << header_value << "]";
-  query_->headers_.emplace_back(header_name, header_value);
-  if (header_name == "content-length") {
-    auto content_length = to_integer<uint64>(header_value);
-    if (content_length > MAX_CONTENT_SIZE) {
-      content_length = MAX_CONTENT_SIZE;
-    }
-    content_length_ = static_cast<int64>(content_length);
-  } else if (header_name == "connection") {
-    to_lower_inplace(header_value);
-    if (header_value == "close") {
-      query_->keep_alive_ = false;
-    } else {
-      query_->keep_alive_ = true;
-    }
-  } else if (header_name == "content-type") {
-    content_type_ = header_value;
-    content_type_lowercased_ = header_value.str();
-    to_lower_inplace(content_type_lowercased_);
-  } else if (header_name == "content-encoding") {
-    to_lower_inplace(header_value);
-    content_encoding_ = header_value;
-  } else if (header_name == "transfer-encoding") {
-    to_lower_inplace(header_value);
-    transfer_encoding_ = header_value;
-  }
-}
-
-Status HttpReader::parse_url(MutableSlice url) {
-  size_t url_path_size = 0;
-  while (url_path_size < url.size() && url[url_path_size] != '?' && url[url_path_size] != '#') {
-    url_path_size++;
-  }
-
-  query_->url_path_ = url_decode_inplace({url.data(), url_path_size}, false);
-
-  if (url_path_size == url.size() || url[url_path_size] != '?') {
-    return Status::OK();
-  }
-  return parse_parameters(url.substr(url_path_size + 1));
-}
-
-Status HttpReader::parse_parameters(MutableSlice parameters) {
-  total_parameters_length_ += parameters.size();
-  if (total_parameters_length_ > MAX_TOTAL_PARAMETERS_LENGTH) {
-    return Status::Error(413, "Request Entity Too Large: too many parameters");
-  }
-  LOG(DEBUG) << "Parse parameters: \"" << parameters << "\"";
-
-  Parser parser(parameters);
-  while (!parser.data().empty()) {
-    auto key_value = parser.read_till_nofail('&');
-    parser.skip_nofail('&');
-    Parser kv_parser(key_value);
-    auto key = url_decode_inplace(kv_parser.read_till_nofail('='), true);
-    kv_parser.skip_nofail('=');
-    auto value = url_decode_inplace(kv_parser.data(), true);
-    query_->args_.emplace_back(key, value);
-  }
-
-  CHECK(parser.status().is_ok());
-  return Status::OK();
-}
-
-Status HttpReader::parse_json_parameters(MutableSlice parameters) {
-  if (parameters.empty()) {
-    return Status::OK();
-  }
-
-  total_parameters_length_ += parameters.size();
-  if (total_parameters_length_ > MAX_TOTAL_PARAMETERS_LENGTH) {
-    return Status::Error(413, "Request Entity Too Large: too many parameters");
-  }
-  LOG(DEBUG) << "Parse JSON parameters: \"" << parameters << "\"";
-
-  Parser parser(parameters);
-  parser.skip_whitespaces();
-  if (parser.peek_char() == '"') {
-    auto r_value = json_string_decode(parser);
-    if (r_value.is_error()) {
-      return Status::Error(400, PSLICE() << "Bad Request: can't parse string content: " << r_value.error().message());
-    }
-    if (!parser.empty()) {
-      return Status::Error(400, "Bad Request: extra data after string");
-    }
-    query_->container_.emplace_back("content");
-    query_->args_.emplace_back(query_->container_.back().as_mutable_slice(), r_value.move_as_ok());
-    return Status::OK();
-  }
-  parser.skip('{');
-  if (parser.status().is_error()) {
-    return Status::Error(400, "Bad Request: JSON object expected");
-  }
-  while (true) {
-    parser.skip_whitespaces();
-    if (parser.try_skip('}')) {
-      parser.skip_whitespaces();
-      if (parser.empty()) {
-        return Status::OK();
-      }
-      return Status::Error(400, "Bad Request: unexpected data after object end");
-    }
-    if (parser.empty()) {
-      return Status::Error(400, "Bad Request: expected parameter name");
-    }
-    auto r_key = json_string_decode(parser);
-    if (r_key.is_error()) {
-      return Status::Error(400, PSLICE() << "Bad Request: can't parse parameter name: " << r_key.error().message());
-    }
-    parser.skip_whitespaces();
-    if (!parser.try_skip(':')) {
-      return Status::Error(400, "Bad Request: can't parse object, ':' expected");
-    }
-    parser.skip_whitespaces();
-    auto r_value = [&]() -> Result<MutableSlice> {
-      if (parser.peek_char() == '"') {
-        return json_string_decode(parser);
-      } else {
-        const int32 DEFAULT_MAX_DEPTH = 100;
-        auto begin = parser.ptr();
-        auto result = do_json_skip(parser, DEFAULT_MAX_DEPTH);
-        if (result.is_ok()) {
-          return MutableSlice(begin, parser.ptr());
-        } else {
-          return result.move_as_error();
-        }
-      }
-    }();
-    if (r_value.is_error()) {
-      return Status::Error(400, PSLICE() << "Bad Request: can't parse parameter value: " << r_value.error().message());
-    }
-    query_->args_.emplace_back(r_key.move_as_ok(), r_value.move_as_ok());
-
-    parser.skip_whitespaces();
-    if (parser.peek_char() != '}' && !parser.try_skip(',')) {
-      return Status::Error(400, "Bad Request: expected next field or object end");
-    }
-  }
-  UNREACHABLE();
-  return Status::OK();
-}
-
-Status HttpReader::parse_http_version(Slice version) {
-  if (version == "HTTP/1.1") {
-    query_->keep_alive_ = true;
-  } else if (version == "HTTP/1.0") {
-    query_->keep_alive_ = false;
-  } else {
-    LOG(INFO) << "Unsupported HTTP version: " << version;
-    return Status::Error(505, "HTTP Version Not Supported");
-  }
-  return Status::OK();
-}
-
-Status HttpReader::parse_head(MutableSlice head) {
-  Parser parser(head);
-
-  Slice type = parser.read_till(' ');
-  parser.skip(' ');
-  // GET POST HTTP/1.1
-  if (type == "GET") {
-    query_->type_ = HttpQuery::Type::Get;
-  } else if (type == "POST") {
-    query_->type_ = HttpQuery::Type::Post;
-  } else if (type.size() >= 4 && type.substr(0, 4) == "HTTP") {
-    TRY_STATUS(parse_http_version(type));
-    query_->type_ = HttpQuery::Type::Response;
-  } else {
-    LOG(INFO) << "Not Implemented " << tag("type", type) << tag("head", head);
-    return Status::Error(501, "Not Implemented");
-  }
-
-  query_->args_.clear();
-
-  if (query_->type_ == HttpQuery::Type::Response) {
-    query_->code_ = to_integer<int32>(parser.read_till(' '));
-    parser.skip(' ');
-    query_->reason_ = parser.read_till('\r');
-    LOG(DEBUG) << "Receive HTTP response " << query_->code_ << " " << query_->reason_;
-  } else {
-    auto url_version = parser.read_till('\r');
-    auto space_pos = url_version.rfind(' ');
-    if (space_pos == static_cast<size_t>(-1)) {
-      return Status::Error(400, "Bad Request: wrong request line");
-    }
-
-    TRY_STATUS(parse_url(url_version.substr(0, space_pos)));
-    TRY_STATUS(parse_http_version(url_version.substr(space_pos + 1)));
-  }
-  parser.skip('\r');
-  parser.skip('\n');
-
-  content_length_ = -1;
-  content_type_ = Slice("application/octet-stream");
-  content_type_lowercased_ = content_type_.str();
-  transfer_encoding_ = Slice();
-  content_encoding_ = Slice();
-
-  query_->headers_.clear();
-  query_->files_.clear();
-  query_->content_ = MutableSlice();
-  while (parser.status().is_ok() && !parser.data().empty()) {
-    MutableSlice header_name = parser.read_till(':');
-    parser.skip(':');
-    char *header_value_begin = parser.ptr();
-    char *header_value_end;
-    do {
-      parser.read_till('\r');
-      header_value_end = parser.ptr();
-      parser.skip('\r');
-      parser.skip('\n');
-    } while (parser.status().is_ok() && (parser.peek_char() == ' ' || parser.peek_char() == '\t'));
-
-    process_header(header_name, {header_value_begin, header_value_end});
-  }
-  return parser.status().is_ok() ? Status::OK() : Status::Error(400, "Bad Request");
-}
-
-Status HttpReader::open_temp_file(CSlice desired_file_name) {
-  CHECK(temp_file_.empty());
-
-  auto tmp_dir = get_temporary_dir();
-  if (tmp_dir.empty()) {
-    return Status::Error("Can't find temporary directory");
-  }
-
-  TRY_RESULT(dir, realpath(tmp_dir, true));
-  CHECK(!dir.empty());
-
-  // Create a unique directory for the file
-  TRY_RESULT(directory, mkdtemp(dir, TEMP_DIRECTORY_PREFIX));
-  auto first_try = try_open_temp_file(directory, desired_file_name);
-  if (first_try.is_ok()) {
-    return Status::OK();
-  }
-  auto second_try = try_open_temp_file(directory, "file");
-  if (second_try.is_ok()) {
-    return Status::OK();
-  }
-
-  rmdir(directory).ignore();
-  LOG(WARNING) << "Failed to create temporary file \"" << desired_file_name << "\": " << first_try.error();
-  return first_try.move_as_error();
-}
-
-Status HttpReader::try_open_temp_file(Slice directory_name, CSlice desired_file_name) {
-  CHECK(temp_file_.empty());
-  CHECK(!directory_name.empty());
-
-  string file_name = clean_filename(desired_file_name);
-  if (file_name.empty()) {
-    file_name = "file";
-  }
-
-  temp_file_name_.clear();
-  temp_file_name_.reserve(directory_name.size() + 1 + file_name.size());
-  temp_file_name_.append(directory_name.data(), directory_name.size());
-  if (temp_file_name_.back() != TD_DIR_SLASH) {
-    temp_file_name_ += TD_DIR_SLASH;
-  }
-  temp_file_name_.append(file_name.data(), file_name.size());
-
-  TRY_RESULT(opened_file, FileFd::open(temp_file_name_, FileFd::Write | FileFd::CreateNew, 0640));
-
-  file_size_ = 0;
-  temp_file_ = std::move(opened_file);
-  LOG(DEBUG) << "Created temporary file " << temp_file_name_;
-  return Status::OK();
-}
-
-Status HttpReader::save_file_part(BufferSlice &&file_part) {
-  file_size_ += narrow_cast<int64>(file_part.size());
-  if (file_size_ > MAX_FILE_SIZE) {
-    clean_temporary_file();
-    return Status::Error(
-        413, PSLICE() << "Request Entity Too Large: file of size " << file_size_ << " is too big to be uploaded");
-  }
-
-  LOG(DEBUG) << "Save file part of size " << file_part.size() << " to file " << temp_file_name_;
-  auto result_written = temp_file_.write(file_part.as_slice());
-  if (result_written.is_error() || result_written.ok() != file_part.size()) {
-    clean_temporary_file();
-    return Status::Error(500, "Internal Server Error: can't upload the file");
-  }
-  return Status::OK();
-}
-
-void HttpReader::clean_temporary_file() {
-  string file_name = temp_file_name_;
-  close_temp_file();
-  delete_temp_file(file_name);
-}
-
-void HttpReader::close_temp_file() {
-  LOG(DEBUG) << "Close temporary file " << temp_file_name_;
-  CHECK(!temp_file_.empty());
-  temp_file_.close();
-  CHECK(temp_file_.empty());
-  temp_file_name_.clear();
-}
-
-void HttpReader::delete_temp_file(CSlice file_name) {
-  CHECK(!file_name.empty());
-  LOG(DEBUG) << "Unlink temporary file " << file_name;
-  unlink(file_name).ignore();
-  PathView path_view(file_name);
-  Slice parent = path_view.parent_dir();
-  const size_t prefix_length = std::strlen(TEMP_DIRECTORY_PREFIX);
-  if (parent.size() >= prefix_length + 7 &&
-      parent.substr(parent.size() - prefix_length - 7, prefix_length) == TEMP_DIRECTORY_PREFIX) {
-    LOG(DEBUG) << "Unlink temporary directory " << parent;
-    rmdir(PSLICE() << Slice(parent.data(), parent.size() - 1)).ignore();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/HttpReader.h b/third-party/td/td/tdnet/td/net/HttpReader.h
deleted file mode 100644
index ab8c7c2bbc..0000000000
--- a/third-party/td/td/tdnet/td/net/HttpReader.h
+++ /dev/null
@@ -1,116 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/HttpChunkedByteFlow.h"
-#include "td/net/HttpContentLengthByteFlow.h"
-#include "td/net/HttpQuery.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/ByteFlow.h"
-#include "td/utils/common.h"
-#include "td/utils/GzipByteFlow.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <limits>
-
-namespace td {
-
-class HttpReader {
- public:
-  void init(ChainBufferReader *input, size_t max_post_size = std::numeric_limits<size_t>::max(),
-            size_t max_files = 100);
-
-  Result<size_t> read_next(HttpQuery *query, bool can_be_slow = true) TD_WARN_UNUSED_RESULT;  // TODO move query to init
-
-  HttpReader() = default;
-  HttpReader(const HttpReader &) = delete;
-  HttpReader &operator=(const HttpReader &) = delete;
-  HttpReader(HttpReader &&) = delete;
-  HttpReader &operator=(HttpReader &&) = delete;
-  ~HttpReader() {
-    if (!temp_file_.empty()) {
-      clean_temporary_file();
-    }
-  }
-
-  static void delete_temp_file(CSlice file_name);
-
- private:
-  size_t max_post_size_ = 0;
-  size_t max_files_ = 0;
-
-  enum class State { ReadHeaders, ReadContent, ReadContentToFile, ReadArgs, ReadMultipartFormData };
-  State state_ = State::ReadHeaders;
-  size_t headers_read_length_ = 0;
-  int64 content_length_ = -1;
-  ChainBufferReader *input_ = nullptr;
-  ByteFlowSource flow_source_;
-  HttpChunkedByteFlow chunked_flow_;
-  GzipByteFlow gzip_flow_;
-  HttpContentLengthByteFlow content_length_flow_;
-  ByteFlowSink flow_sink_;
-  ChainBufferReader *content_ = nullptr;
-
-  HttpQuery *query_ = nullptr;
-  Slice transfer_encoding_;
-  Slice content_encoding_;
-  Slice content_type_;
-  string content_type_lowercased_;
-  size_t total_parameters_length_ = 0;
-  size_t total_headers_length_ = 0;
-
-  string boundary_;
-  size_t form_data_read_length_ = 0;
-  size_t form_data_skipped_length_ = 0;
-  enum class FormDataParseState : int32 {
-    SkipPrologue,
-    ReadPartHeaders,
-    ReadPartValue,
-    ReadFile,
-    CheckForLastBoundary,
-    SkipEpilogue
-  };
-  FormDataParseState form_data_parse_state_ = FormDataParseState::SkipPrologue;
-  MutableSlice field_name_;
-  string file_field_name_;
-  string field_content_type_;
-  string file_name_;
-  bool has_file_name_ = false;
-  FileFd temp_file_;
-  string temp_file_name_;
-  int64 file_size_ = 0;
-
-  Result<size_t> do_read_next(bool can_be_slow);
-
-  Result<size_t> split_header() TD_WARN_UNUSED_RESULT;
-  void process_header(MutableSlice header_name, MutableSlice header_value);
-  Result<bool> parse_multipart_form_data(bool can_be_slow) TD_WARN_UNUSED_RESULT;
-  Status parse_url(MutableSlice url) TD_WARN_UNUSED_RESULT;
-  Status parse_parameters(MutableSlice parameters) TD_WARN_UNUSED_RESULT;
-  Status parse_json_parameters(MutableSlice parameters) TD_WARN_UNUSED_RESULT;
-  Status parse_http_version(Slice version) TD_WARN_UNUSED_RESULT;
-  Status parse_head(MutableSlice head) TD_WARN_UNUSED_RESULT;
-
-  Status open_temp_file(CSlice desired_file_name) TD_WARN_UNUSED_RESULT;
-  Status try_open_temp_file(Slice directory_name, CSlice desired_file_name) TD_WARN_UNUSED_RESULT;
-  Status save_file_part(BufferSlice &&file_part) TD_WARN_UNUSED_RESULT;
-  void close_temp_file();
-  void clean_temporary_file();
-
-  static constexpr size_t MAX_CONTENT_SIZE = std::numeric_limits<uint32>::max();  // Some reasonable limit
-  static constexpr size_t MAX_TOTAL_PARAMETERS_LENGTH = 1 << 20;                  // Some reasonable limit
-  static constexpr size_t MAX_TOTAL_HEADERS_LENGTH = 1 << 18;                     // Some reasonable limit
-  static constexpr size_t MAX_BOUNDARY_LENGTH = 70;                               // As defined by RFC1341
-  static constexpr int64 MAX_FILE_SIZE = static_cast<int64>(4000) << 20;          // Telegram server file size limit
-  static constexpr const char TEMP_DIRECTORY_PREFIX[] = "tdlib-server-tmp";
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/NetStats.h b/third-party/td/td/tdnet/td/net/NetStats.h
deleted file mode 100644
index c186be16e9..0000000000
--- a/third-party/td/td/tdnet/td/net/NetStats.h
+++ /dev/null
@@ -1,144 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/SchedulerLocalStorage.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-
-#include <atomic>
-#include <memory>
-
-namespace td {
-
-class NetStatsCallback {
- public:
-  virtual void on_read(uint64 bytes) = 0;
-  virtual void on_write(uint64 bytes) = 0;
-  NetStatsCallback() = default;
-  NetStatsCallback(const NetStatsCallback &) = delete;
-  NetStatsCallback &operator=(const NetStatsCallback &) = delete;
-  virtual ~NetStatsCallback() = default;
-};
-
-struct NetStatsData {
-  uint64 read_size = 0;
-  uint64 write_size = 0;
-
-  uint64 count = 0;
-  double duration = 0;
-};
-
-inline NetStatsData operator+(const NetStatsData &a, const NetStatsData &b) {
-  NetStatsData res;
-  res.read_size = a.read_size + b.read_size;
-  res.write_size = a.write_size + b.write_size;
-  res.count = a.count + b.count;
-  res.duration = a.duration + b.duration;
-  return res;
-}
-inline NetStatsData operator-(const NetStatsData &a, const NetStatsData &b) {
-  NetStatsData res;
-  CHECK(a.read_size >= b.read_size);
-  res.read_size = a.read_size - b.read_size;
-
-  CHECK(a.write_size >= b.write_size);
-  res.write_size = a.write_size - b.write_size;
-
-  CHECK(a.count >= b.count);
-  res.count = a.count - b.count;
-
-  CHECK(a.duration >= b.duration);
-  res.duration = a.duration - b.duration;
-
-  return res;
-}
-
-inline StringBuilder &operator<<(StringBuilder &sb, const NetStatsData &data) {
-  return sb << tag("Rx size", format::as_size(data.read_size)) << tag("Tx size", format::as_size(data.write_size))
-            << tag("count", data.count) << tag("duration", format::as_time(data.duration));
-}
-
-class NetStats {
- public:
-  class Callback {
-   public:
-    virtual void on_stats_updated() = 0;
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-  };
-
-  std::shared_ptr<NetStatsCallback> get_callback() const {
-    return impl_;
-  }
-
-  NetStatsData get_stats() const {
-    return impl_->get_stats();
-  }
-
-  // do it before get_callback
-  void set_callback(unique_ptr<Callback> callback) {
-    impl_->set_callback(std::move(callback));
-  }
-
- private:
-  class Impl final : public NetStatsCallback {
-   public:
-    NetStatsData get_stats() const {
-      NetStatsData res;
-      local_net_stats_.for_each([&](auto &stats) {
-        res.read_size += stats.read_size.load(std::memory_order_relaxed);
-        res.write_size += stats.write_size.load(std::memory_order_relaxed);
-      });
-      return res;
-    }
-    void set_callback(unique_ptr<Callback> callback) {
-      callback_ = std::move(callback);
-    }
-
-   private:
-    struct LocalNetStats {
-      double last_update = 0;
-      uint64 unsync_size = 0;
-      std::atomic<uint64> read_size{0};
-      std::atomic<uint64> write_size{0};
-    };
-    SchedulerLocalStorage<LocalNetStats> local_net_stats_;
-    unique_ptr<Callback> callback_;
-
-    void on_read(uint64 size) final {
-      auto &stats = local_net_stats_.get();
-      stats.read_size.fetch_add(size, std::memory_order_relaxed);
-
-      on_change(stats, size);
-    }
-    void on_write(uint64 size) final {
-      auto &stats = local_net_stats_.get();
-      stats.write_size.fetch_add(size, std::memory_order_relaxed);
-
-      on_change(stats, size);
-    }
-
-    void on_change(LocalNetStats &stats, uint64 size) {
-      stats.unsync_size += size;
-      auto now = Time::now();
-      if (stats.unsync_size > 10000 || now - stats.last_update > 300) {
-        stats.unsync_size = 0;
-        stats.last_update = now;
-        callback_->on_stats_updated();
-      }
-    }
-  };
-  std::shared_ptr<Impl> impl_{std::make_shared<Impl>()};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/Socks5.cpp b/third-party/td/td/tdnet/td/net/Socks5.cpp
deleted file mode 100644
index 68f11296c5..0000000000
--- a/third-party/td/td/tdnet/td/net/Socks5.cpp
+++ /dev/null
@@ -1,190 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/Socks5.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-
-void Socks5::send_greeting() {
-  VLOG(proxy) << "Send greeting to proxy";
-  CHECK(state_ == State::SendGreeting);
-  state_ = State::WaitGreetingResponse;
-
-  string greeting;
-  greeting += '\x05';
-  bool use_username = !username_.empty();
-  char authentication_count = use_username ? '\x02' : '\x01';
-  greeting += authentication_count;
-  greeting += '\0';
-  if (use_username) {
-    greeting += '\x02';
-  }
-
-  fd_.output_buffer().append(greeting);
-}
-
-Status Socks5::wait_greeting_response() {
-  auto &buf = fd_.input_buffer();
-  VLOG(proxy) << "Receive greeting response of size " << buf.size();
-  if (buf.size() < 2) {
-    return Status::OK();
-  }
-  auto buffer_slice = buf.read_as_buffer_slice(2);
-  auto slice = buffer_slice.as_slice();
-  if (slice[0] != '\x05') {
-    return Status::Error(PSLICE() << "Unsupported socks protocol version " << static_cast<int>(slice[0]));
-  }
-  auto authentication_method = slice[1];
-  if (authentication_method == '\0') {
-    send_ip_address();
-    return Status::OK();
-  }
-  if (authentication_method == '\x02') {
-    return send_username_password();
-  }
-  return Status::Error("Unsupported authentication mode");
-}
-
-Status Socks5::send_username_password() {
-  VLOG(proxy) << "Send username and password";
-  if (username_.size() >= 128) {
-    return Status::Error("Username is too long");
-  }
-  if (password_.size() >= 128) {
-    return Status::Error("Password is too long");
-  }
-
-  string request;
-  request += '\x01';
-  request += narrow_cast<char>(username_.size());
-  request += username_;
-  request += narrow_cast<char>(password_.size());
-  request += password_;
-  fd_.output_buffer().append(request);
-  state_ = State::WaitPasswordResponse;
-
-  return Status::OK();
-}
-
-Status Socks5::wait_password_response() {
-  auto &buf = fd_.input_buffer();
-  VLOG(proxy) << "Receive password response of size " << buf.size();
-  if (buf.size() < 2) {
-    return Status::OK();
-  }
-  auto buffer_slice = buf.read_as_buffer_slice(2);
-  auto slice = buffer_slice.as_slice();
-  if (slice[0] != '\x01') {
-    return Status::Error(PSLICE() << "Unsupported socks subnegotiation protocol version "
-                                  << static_cast<int>(slice[0]));
-  }
-  if (slice[1] != '\x00') {
-    return Status::Error("Wrong username or password");
-  }
-
-  send_ip_address();
-  return Status::OK();
-}
-
-void Socks5::send_ip_address() {
-  VLOG(proxy) << "Send IP address";
-  callback_->on_connected();
-  string request;
-  request += '\x05';
-  request += '\x01';
-  request += '\x00';
-  if (ip_address_.is_ipv4()) {
-    request += '\x01';
-    auto ipv4 = ntohl(ip_address_.get_ipv4());
-    request += static_cast<char>(ipv4 & 255);
-    request += static_cast<char>((ipv4 >> 8) & 255);
-    request += static_cast<char>((ipv4 >> 16) & 255);
-    request += static_cast<char>((ipv4 >> 24) & 255);
-  } else {
-    request += '\x04';
-    request += ip_address_.get_ipv6();
-  }
-  auto port = ip_address_.get_port();
-  request += static_cast<char>((port >> 8) & 255);
-  request += static_cast<char>(port & 255);
-  fd_.output_buffer().append(request);
-  state_ = State::WaitIpAddressResponse;
-}
-
-Status Socks5::wait_ip_address_response() {
-  CHECK(state_ == State::WaitIpAddressResponse);
-  auto it = fd_.input_buffer().clone();
-  VLOG(proxy) << "Receive IP address response of size " << it.size();
-  if (it.size() < 4) {
-    return Status::OK();
-  }
-  char c;
-  MutableSlice c_slice(&c, 1);
-  it.advance(1, c_slice);
-  if (c != '\x05') {
-    return Status::Error("Invalid response");
-  }
-  it.advance(1, c_slice);
-  if (c != '\0') {
-    return Status::Error(PSLICE() << "Receive error code " << static_cast<int32>(c) << " from server");
-  }
-  it.advance(1, c_slice);
-  if (c != '\0') {
-    return Status::Error("Byte must be zero");
-  }
-  it.advance(1, c_slice);
-  size_t total_size = 6;
-  if (c == '\x01') {
-    if (it.size() < 4) {
-      return Status::OK();
-    }
-    it.advance(4);
-    total_size += 4;
-  } else if (c == '\x04') {
-    if (it.size() < 16) {
-      return Status::OK();
-    }
-    it.advance(16);
-    total_size += 16;
-  } else {
-    return Status::Error("Invalid response");
-  }
-  if (it.size() < 2) {
-    return Status::OK();
-  }
-  it.advance(2);
-  fd_.input_buffer().advance(total_size);
-  stop();
-  return Status::OK();
-}
-
-Status Socks5::loop_impl() {
-  switch (state_) {
-    case State::SendGreeting:
-      send_greeting();
-      break;
-    case State::WaitGreetingResponse:
-      TRY_STATUS(wait_greeting_response());
-      break;
-    case State::WaitPasswordResponse:
-      TRY_STATUS(wait_password_response());
-      break;
-    case State::WaitIpAddressResponse:
-      TRY_STATUS(wait_ip_address_response());
-      break;
-    default:
-      UNREACHABLE();
-  }
-  return Status::OK();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/Socks5.h b/third-party/td/td/tdnet/td/net/Socks5.h
deleted file mode 100644
index 2685535177..0000000000
--- a/third-party/td/td/tdnet/td/net/Socks5.h
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/TransparentProxy.h"
-
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Socks5 final : public TransparentProxy {
- public:
-  using TransparentProxy::TransparentProxy;
-
- private:
-  enum class State {
-    SendGreeting,
-    WaitGreetingResponse,
-    WaitPasswordResponse,
-    WaitIpAddressResponse
-  } state_ = State::SendGreeting;
-
-  void send_greeting();
-  Status wait_greeting_response();
-  Status send_username_password();
-
-  Status wait_password_response();
-
-  void send_ip_address();
-  Status wait_ip_address_response();
-
-  Status loop_impl() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/SslCtx.cpp b/third-party/td/td/tdnet/td/net/SslCtx.cpp
deleted file mode 100644
index 0bc1ee81bf..0000000000
--- a/third-party/td/td/tdnet/td/net/SslCtx.cpp
+++ /dev/null
@@ -1,370 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/SslCtx.h"
-
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/wstring_convert.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-#if !TD_EMSCRIPTEN
-#include <openssl/err.h>
-#include <openssl/ssl.h>
-#include <openssl/x509.h>
-#include <openssl/x509_vfy.h>
-
-#include <cstring>
-#include <memory>
-#include <mutex>
-
-#if TD_PORT_WINDOWS
-#include <wincrypt.h>
-#endif
-
-namespace td {
-
-namespace detail {
-namespace {
-int verify_callback(int preverify_ok, X509_STORE_CTX *ctx) {
-  if (!preverify_ok) {
-    char buf[256];
-    X509_NAME_oneline(X509_get_subject_name(X509_STORE_CTX_get_current_cert(ctx)), buf, 256);
-
-    int err = X509_STORE_CTX_get_error(ctx);
-    auto warning = PSTRING() << "verify error:num=" << err << ":" << X509_verify_cert_error_string(err)
-                             << ":depth=" << X509_STORE_CTX_get_error_depth(ctx) << ":" << Slice(buf, std::strlen(buf));
-    double now = Time::now();
-
-    static std::mutex warning_mutex;
-    {
-      std::lock_guard<std::mutex> lock(warning_mutex);
-      static FlatHashMap<string, double> next_warning_time;
-      double &next = next_warning_time[warning];
-      if (next <= now) {
-        next = now + 300;  // one warning per 5 minutes
-        LOG(WARNING) << warning;
-      }
-    }
-  }
-
-  return preverify_ok;
-}
-
-X509_STORE *load_system_certificate_store() {
-  int32 cert_count = 0;
-  int32 file_count = 0;
-  LOG(DEBUG) << "Begin to load system certificate store";
-  SCOPE_EXIT {
-    LOG(DEBUG) << "End to load " << cert_count << " certificates from " << file_count << " files from system store";
-    if (ERR_peek_error() != 0) {
-      auto error = create_openssl_error(-22, "Have unprocessed errors");
-      LOG(INFO) << error;
-    }
-  };
-#if TD_PORT_WINDOWS
-  auto flags = CERT_STORE_OPEN_EXISTING_FLAG | CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
-  HCERTSTORE system_store =
-      CertOpenStore(CERT_STORE_PROV_SYSTEM_W, X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, HCRYPTPROV_LEGACY(), flags,
-                    static_cast<const void *>(to_wstring("ROOT").ok().c_str()));
-  if (!system_store) {
-    return nullptr;
-  }
-  X509_STORE *store = X509_STORE_new();
-  if (store == nullptr) {
-    return nullptr;
-  }
-
-  for (PCCERT_CONTEXT cert_context = CertEnumCertificatesInStore(system_store, nullptr); cert_context != nullptr;
-       cert_context = CertEnumCertificatesInStore(system_store, cert_context)) {
-    const unsigned char *in = cert_context->pbCertEncoded;
-    X509 *x509 = d2i_X509(nullptr, &in, static_cast<long>(cert_context->cbCertEncoded));
-    if (x509 != nullptr) {
-      if (X509_STORE_add_cert(store, x509) != 1) {
-        auto error_code = ERR_peek_error();
-        auto error = create_openssl_error(-20, "Failed to add certificate");
-        if (ERR_GET_REASON(error_code) != X509_R_CERT_ALREADY_IN_HASH_TABLE) {
-          LOG(ERROR) << error;
-        } else {
-          LOG(INFO) << error;
-        }
-      } else {
-        cert_count++;
-      }
-
-      X509_free(x509);
-    } else {
-      LOG(ERROR) << create_openssl_error(-21, "Failed to load X509 certificate");
-    }
-  }
-
-  CertCloseStore(system_store, 0);
-#else
-  X509_STORE *store = X509_STORE_new();
-  if (store == nullptr) {
-    return nullptr;
-  }
-
-  auto add_file = [&](CSlice path) {
-    if (X509_STORE_load_locations(store, path.c_str(), nullptr) != 1) {
-      auto error = create_openssl_error(-20, "Failed to add certificate");
-      LOG(INFO) << path << ": " << error;
-    } else {
-      file_count++;
-    }
-  };
-
-  string default_cert_dir = X509_get_default_cert_dir();
-  for (auto cert_dir : full_split(default_cert_dir, ':')) {
-    walk_path(cert_dir, [&](CSlice path, WalkPath::Type type) {
-      if (type != WalkPath::Type::RegularFile && type != WalkPath::Type::Symlink) {
-        return type == WalkPath::Type::EnterDir && path != cert_dir ? WalkPath::Action::SkipDir
-                                                                    : WalkPath::Action::Continue;
-      }
-      add_file(path);
-      return WalkPath::Action::Continue;
-    }).ignore();
-  }
-
-  string default_cert_path = X509_get_default_cert_file();
-  if (!default_cert_path.empty()) {
-    add_file(default_cert_path);
-  }
-
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  auto objects = X509_STORE_get0_objects(store);
-  cert_count = objects == nullptr ? 0 : sk_X509_OBJECT_num(objects);
-#else
-  cert_count = -1;
-#endif
-#endif
-
-  return store;
-}
-
-using SslCtxPtr = std::shared_ptr<SSL_CTX>;
-
-Result<SslCtxPtr> do_create_ssl_ctx(CSlice cert_file, SslCtx::VerifyPeer verify_peer) {
-  auto ssl_method =
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-      TLS_client_method();
-#else
-      SSLv23_client_method();
-#endif
-  if (ssl_method == nullptr) {
-    return create_openssl_error(-6, "Failed to create an SSL client method");
-  }
-  auto ssl_ctx = SSL_CTX_new(ssl_method);
-  if (!ssl_ctx) {
-    return create_openssl_error(-7, "Failed to create an SSL context");
-  }
-  auto ssl_ctx_ptr = SslCtxPtr(ssl_ctx, SSL_CTX_free);
-  long options = 0;
-#ifdef SSL_OP_NO_SSLv2
-  options |= SSL_OP_NO_SSLv2;
-#endif
-#ifdef SSL_OP_NO_SSLv3
-  options |= SSL_OP_NO_SSLv3;
-#endif
-  SSL_CTX_set_options(ssl_ctx, options);
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  SSL_CTX_set_min_proto_version(ssl_ctx, TLS1_VERSION);
-#endif
-  SSL_CTX_set_mode(ssl_ctx, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER | SSL_MODE_ENABLE_PARTIAL_WRITE);
-
-  if (cert_file.empty()) {
-    auto *store = load_system_certificate_store();
-    if (store == nullptr) {
-      auto error = create_openssl_error(-8, "Failed to load system certificate store");
-      if (verify_peer == SslCtx::VerifyPeer::On) {
-        return std::move(error);
-      } else {
-        LOG(ERROR) << error;
-      }
-    } else {
-      SSL_CTX_set_cert_store(ssl_ctx, store);
-    }
-  } else {
-    if (SSL_CTX_load_verify_locations(ssl_ctx, cert_file.c_str(), nullptr) == 0) {
-      return create_openssl_error(-8, "Failed to set custom certificate file");
-    }
-  }
-
-  if (verify_peer == SslCtx::VerifyPeer::On) {
-    SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, verify_callback);
-
-    constexpr int DEFAULT_VERIFY_DEPTH = 10;
-    SSL_CTX_set_verify_depth(ssl_ctx, DEFAULT_VERIFY_DEPTH);
-  } else {
-    SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_NONE, nullptr);
-  }
-
-  string cipher_list;
-  if (SSL_CTX_set_cipher_list(ssl_ctx, cipher_list.empty() ? "DEFAULT" : cipher_list.c_str()) == 0) {
-    return create_openssl_error(-9, PSLICE() << "Failed to set cipher list \"" << cipher_list << '"');
-  }
-
-  return std::move(ssl_ctx_ptr);
-}
-
-Result<SslCtxPtr> get_default_ssl_ctx() {
-  static auto ctx = do_create_ssl_ctx(CSlice(), SslCtx::VerifyPeer::On);
-  if (ctx.is_error()) {
-    return ctx.error().clone();
-  }
-
-  return ctx.ok();
-}
-
-Result<SslCtxPtr> get_default_unverified_ssl_ctx() {
-  static auto ctx = do_create_ssl_ctx(CSlice(), SslCtx::VerifyPeer::Off);
-  if (ctx.is_error()) {
-    return ctx.error().clone();
-  }
-
-  return ctx.ok();
-}
-
-}  // namespace
-
-class SslCtxImpl {
- public:
-  Status init(CSlice cert_file, SslCtx::VerifyPeer verify_peer) {
-    SslCtx::init_openssl();
-
-    clear_openssl_errors("Before SslCtx::init");
-
-    if (cert_file.empty()) {
-      if (verify_peer == SslCtx::VerifyPeer::On) {
-        TRY_RESULT_ASSIGN(ssl_ctx_ptr_, get_default_ssl_ctx());
-      } else {
-        TRY_RESULT_ASSIGN(ssl_ctx_ptr_, get_default_unverified_ssl_ctx());
-      }
-      return Status::OK();
-    }
-
-    auto start_time = Time::now();
-    auto r_ssl_ctx_ptr = do_create_ssl_ctx(cert_file, verify_peer);
-    auto elapsed_time = Time::now() - start_time;
-    if (elapsed_time >= 0.1) {
-      LOG(WARNING) << "SSL context creation took " << elapsed_time << " seconds";
-    }
-    if (r_ssl_ctx_ptr.is_error()) {
-      return r_ssl_ctx_ptr.move_as_error();
-    }
-    ssl_ctx_ptr_ = r_ssl_ctx_ptr.move_as_ok();
-    return Status::OK();
-  }
-
-  void *get_openssl_ctx() const {
-    return static_cast<void *>(ssl_ctx_ptr_.get());
-  }
-
- private:
-  SslCtxPtr ssl_ctx_ptr_;
-};
-
-}  // namespace detail
-
-SslCtx::SslCtx() = default;
-
-SslCtx::SslCtx(const SslCtx &other) {
-  if (other.impl_) {
-    impl_ = make_unique<detail::SslCtxImpl>(*other.impl_);
-  }
-}
-
-SslCtx &SslCtx::operator=(const SslCtx &other) {
-  if (other.impl_) {
-    impl_ = make_unique<detail::SslCtxImpl>(*other.impl_);
-  } else {
-    impl_ = nullptr;
-  }
-  return *this;
-}
-
-SslCtx::SslCtx(SslCtx &&) noexcept = default;
-
-SslCtx &SslCtx::operator=(SslCtx &&) noexcept = default;
-
-SslCtx::~SslCtx() = default;
-
-void SslCtx::init_openssl() {
-  static bool is_inited = [] {
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-    return OPENSSL_init_ssl(0, nullptr) != 0;
-#else
-    OpenSSL_add_all_algorithms();
-    SSL_load_error_strings();
-    return OpenSSL_add_ssl_algorithms() != 0;
-#endif
-  }();
-  CHECK(is_inited);
-}
-
-Result<SslCtx> SslCtx::create(CSlice cert_file, VerifyPeer verify_peer) {
-  auto impl = make_unique<detail::SslCtxImpl>();
-  TRY_STATUS(impl->init(cert_file, verify_peer));
-  return SslCtx(std::move(impl));
-}
-
-void *SslCtx::get_openssl_ctx() const {
-  return impl_ == nullptr ? nullptr : impl_->get_openssl_ctx();
-}
-
-SslCtx::SslCtx(unique_ptr<detail::SslCtxImpl> impl) : impl_(std::move(impl)) {
-}
-
-}  // namespace td
-
-#else
-
-namespace td {
-
-namespace detail {
-class SslCtxImpl {};
-}  // namespace detail
-
-SslCtx::SslCtx() = default;
-
-SslCtx::SslCtx(const SslCtx &other) {
-  UNREACHABLE();
-}
-
-SslCtx &SslCtx::operator=(const SslCtx &other) {
-  UNREACHABLE();
-  return *this;
-}
-
-SslCtx::SslCtx(SslCtx &&) noexcept = default;
-
-SslCtx &SslCtx::operator=(SslCtx &&) noexcept = default;
-
-SslCtx::~SslCtx() = default;
-
-void SslCtx::init_openssl() {
-}
-
-Result<SslCtx> SslCtx::create(CSlice cert_file, VerifyPeer verify_peer) {
-  return Status::Error("Not supported in Emscripten");
-}
-
-void *SslCtx::get_openssl_ctx() const {
-  return nullptr;
-}
-
-SslCtx::SslCtx(unique_ptr<detail::SslCtxImpl> impl) : impl_(std::move(impl)) {
-}
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdnet/td/net/SslCtx.h b/third-party/td/td/tdnet/td/net/SslCtx.h
deleted file mode 100644
index 6fae870464..0000000000
--- a/third-party/td/td/tdnet/td/net/SslCtx.h
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-namespace detail {
-class SslCtxImpl;
-}  // namespace detail
-
-class SslCtx {
- public:
-  SslCtx();
-  SslCtx(const SslCtx &other);
-  SslCtx &operator=(const SslCtx &other);
-  SslCtx(SslCtx &&) noexcept;
-  SslCtx &operator=(SslCtx &&) noexcept;
-  ~SslCtx();
-
-  static void init_openssl();
-
-  enum class VerifyPeer { On, Off };
-
-  static Result<SslCtx> create(CSlice cert_file, VerifyPeer verify_peer);
-
-  void *get_openssl_ctx() const;
-
-  explicit operator bool() const noexcept {
-    return static_cast<bool>(impl_);
-  }
-
- private:
-  unique_ptr<detail::SslCtxImpl> impl_;
-
-  explicit SslCtx(unique_ptr<detail::SslCtxImpl> impl);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/SslStream.cpp b/third-party/td/td/tdnet/td/net/SslStream.cpp
deleted file mode 100644
index 2f8c4ce2dc..0000000000
--- a/third-party/td/td/tdnet/td/net/SslStream.cpp
+++ /dev/null
@@ -1,423 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/SslStream.h"
-
-#if !TD_EMSCRIPTEN
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/Status.h"
-#include "td/utils/Time.h"
-
-#include <openssl/bio.h>
-#include <openssl/err.h>
-#include <openssl/ssl.h>
-#include <openssl/x509.h>
-
-#include <cstring>
-#include <memory>
-
-namespace td {
-
-namespace detail {
-namespace {
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
-void *BIO_get_data(BIO *b) {
-  return b->ptr;
-}
-void BIO_set_data(BIO *b, void *ptr) {
-  b->ptr = ptr;
-}
-void BIO_set_init(BIO *b, int init) {
-  b->init = init;
-}
-
-int BIO_get_new_index() {
-  return 0;
-}
-BIO_METHOD *BIO_meth_new(int type, const char *name) {
-  auto res = new BIO_METHOD();
-  std::memset(res, 0, sizeof(*res));
-  return res;
-}
-
-int BIO_meth_set_write(BIO_METHOD *biom, int (*bwrite)(BIO *, const char *, int)) {
-  biom->bwrite = bwrite;
-  return 1;
-}
-int BIO_meth_set_read(BIO_METHOD *biom, int (*bread)(BIO *, char *, int)) {
-  biom->bread = bread;
-  return 1;
-}
-int BIO_meth_set_ctrl(BIO_METHOD *biom, long (*ctrl)(BIO *, int, long, void *)) {
-  biom->ctrl = ctrl;
-  return 1;
-}
-int BIO_meth_set_create(BIO_METHOD *biom, int (*create)(BIO *)) {
-  biom->create = create;
-  return 1;
-}
-int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy)(BIO *)) {
-  biom->destroy = destroy;
-  return 1;
-}
-#endif
-
-int strm_create(BIO *b) {
-  BIO_set_init(b, 1);
-  return 1;
-}
-
-int strm_destroy(BIO *b) {
-  return 1;
-}
-
-int strm_read(BIO *b, char *buf, int len);
-
-int strm_write(BIO *b, const char *buf, int len);
-
-long strm_ctrl(BIO *b, int cmd, long num, void *ptr) {
-  switch (cmd) {
-    case BIO_CTRL_FLUSH:
-      return 1;
-    case BIO_CTRL_PUSH:
-    case BIO_CTRL_POP:
-      return 0;
-#if defined(BIO_CTRL_GET_KTLS_SEND)
-    case BIO_CTRL_GET_KTLS_SEND:
-      return 0;
-#endif
-#if defined(BIO_CTRL_GET_KTLS_RECV)
-    case BIO_CTRL_GET_KTLS_RECV:
-      return 0;
-#endif
-    default:
-      LOG(FATAL) << b << " " << cmd << " " << num << " " << ptr;
-  }
-  return 1;
-}
-
-BIO_METHOD *BIO_s_sslstream() {
-  static BIO_METHOD *result = [] {
-    BIO_METHOD *res = BIO_meth_new(BIO_get_new_index(), "td::SslStream helper bio");
-    BIO_meth_set_write(res, strm_write);
-    BIO_meth_set_read(res, strm_read);
-    BIO_meth_set_create(res, strm_create);
-    BIO_meth_set_destroy(res, strm_destroy);
-    BIO_meth_set_ctrl(res, strm_ctrl);
-    return res;
-  }();
-  return result;
-}
-
-struct SslHandleDeleter {
-  void operator()(SSL *ssl_handle) {
-    auto start_time = Time::now();
-    if (SSL_is_init_finished(ssl_handle)) {
-      clear_openssl_errors("Before SSL_shutdown");
-      SSL_set_quiet_shutdown(ssl_handle, 1);
-      SSL_shutdown(ssl_handle);
-      clear_openssl_errors("After SSL_shutdown");
-    }
-    SSL_free(ssl_handle);
-    auto elapsed_time = Time::now() - start_time;
-    if (elapsed_time >= 0.1) {
-      LOG(WARNING) << "SSL_free took " << elapsed_time << " seconds";
-    }
-  }
-};
-
-using SslHandle = std::unique_ptr<SSL, SslHandleDeleter>;
-
-}  // namespace
-
-class SslStreamImpl {
- public:
-  Status init(CSlice host, SslCtx ssl_ctx, bool check_ip_address_as_host) {
-    if (!ssl_ctx) {
-      return Status::Error("Invalid SSL context provided");
-    }
-
-    clear_openssl_errors("Before SslFd::init");
-
-    auto ssl_handle = SslHandle(SSL_new(static_cast<SSL_CTX *>(ssl_ctx.get_openssl_ctx())));
-    if (!ssl_handle) {
-      return create_openssl_error(-13, "Failed to create an SSL handle");
-    }
-
-    auto r_ip_address = IPAddress::get_ip_address(host);
-
-#if OPENSSL_VERSION_NUMBER >= 0x10002000L
-    X509_VERIFY_PARAM *param = SSL_get0_param(ssl_handle.get());
-    X509_VERIFY_PARAM_set_hostflags(param, 0);
-    if (r_ip_address.is_ok() && !check_ip_address_as_host) {
-      LOG(DEBUG) << "Set verification IP address to " << r_ip_address.ok().get_ip_str();
-      X509_VERIFY_PARAM_set1_ip_asc(param, r_ip_address.ok().get_ip_str().c_str());
-    } else {
-      LOG(DEBUG) << "Set verification host to " << host;
-      X509_VERIFY_PARAM_set1_host(param, host.c_str(), 0);
-    }
-#else
-#warning DANGEROUS! HTTPS HOST WILL NOT BE CHECKED. INSTALL OPENSSL >= 1.0.2 OR IMPLEMENT HTTPS HOST CHECK MANUALLY
-#endif
-
-    auto *bio = BIO_new(BIO_s_sslstream());
-    BIO_set_data(bio, static_cast<void *>(this));
-    SSL_set_bio(ssl_handle.get(), bio, bio);
-
-#if OPENSSL_VERSION_NUMBER >= 0x0090806fL && !defined(OPENSSL_NO_TLSEXT)
-    if (r_ip_address.is_error()) {  // IP address must not be sent as SNI
-      LOG(DEBUG) << "Set SNI host name to " << host;
-      auto host_str = host.str();
-      SSL_set_tlsext_host_name(ssl_handle.get(), MutableCSlice(host_str).begin());
-    }
-#endif
-    SSL_set_connect_state(ssl_handle.get());
-
-    ssl_handle_ = std::move(ssl_handle);
-
-    return Status::OK();
-  }
-
-  ByteFlowInterface &read_byte_flow() {
-    return read_flow_;
-  }
-  ByteFlowInterface &write_byte_flow() {
-    return write_flow_;
-  }
-  size_t flow_read(MutableSlice slice) {
-    return read_flow_.read(slice);
-  }
-  size_t flow_write(Slice slice) {
-    return write_flow_.write(slice);
-  }
-
- private:
-  SslHandle ssl_handle_;
-
-  friend class SslReadByteFlow;
-  friend class SslWriteByteFlow;
-
-  Result<size_t> write(Slice slice) {
-    clear_openssl_errors("Before SslFd::write");
-    auto start_time = Time::now();
-    auto size = SSL_write(ssl_handle_.get(), slice.data(), static_cast<int>(slice.size()));
-    auto elapsed_time = Time::now() - start_time;
-    if (elapsed_time >= 0.1) {
-      LOG(WARNING) << "SSL_write of size " << slice.size() << " took " << elapsed_time << " seconds and returned "
-                   << size << ' ' << SSL_get_error(ssl_handle_.get(), size);
-    }
-    if (size <= 0) {
-      return process_ssl_error(size);
-    }
-    return size;
-  }
-
-  Result<size_t> read(MutableSlice slice) {
-    clear_openssl_errors("Before SslFd::read");
-    auto start_time = Time::now();
-    auto size = SSL_read(ssl_handle_.get(), slice.data(), static_cast<int>(slice.size()));
-    auto elapsed_time = Time::now() - start_time;
-    if (elapsed_time >= 0.1) {
-      LOG(WARNING) << "SSL_read took " << elapsed_time << " seconds and returned " << size << ' '
-                   << SSL_get_error(ssl_handle_.get(), size);
-    }
-    if (size <= 0) {
-      return process_ssl_error(size);
-    }
-    return size;
-  }
-
-  class SslReadByteFlow final : public ByteFlowBase {
-   public:
-    explicit SslReadByteFlow(SslStreamImpl *stream) : stream_(stream) {
-    }
-    bool loop() final {
-      auto to_read = output_.prepare_append();
-      auto r_size = stream_->read(to_read);
-      if (r_size.is_error()) {
-        finish(r_size.move_as_error());
-        return false;
-      }
-      auto size = r_size.move_as_ok();
-      if (size == 0) {
-        return false;
-      }
-      output_.confirm_append(size);
-      return true;
-    }
-
-    size_t read(MutableSlice data) {
-      return input_->advance(min(data.size(), input_->size()), data);
-    }
-
-   private:
-    SslStreamImpl *stream_;
-  };
-
-  class SslWriteByteFlow final : public ByteFlowBase {
-   public:
-    explicit SslWriteByteFlow(SslStreamImpl *stream) : stream_(stream) {
-    }
-    bool loop() final {
-      auto to_write = input_->prepare_read();
-      auto r_size = stream_->write(to_write);
-      if (r_size.is_error()) {
-        finish(r_size.move_as_error());
-        return false;
-      }
-      auto size = r_size.move_as_ok();
-      if (size == 0) {
-        return false;
-      }
-      input_->confirm_read(size);
-      return true;
-    }
-
-    size_t write(Slice data) {
-      output_.append(data);
-      return data.size();
-    }
-
-   private:
-    SslStreamImpl *stream_;
-  };
-
-  SslReadByteFlow read_flow_{this};
-  SslWriteByteFlow write_flow_{this};
-
-  Result<size_t> process_ssl_error(int ret) {
-    auto os_error = OS_ERROR("SSL_ERROR_SYSCALL");
-    int error = SSL_get_error(ssl_handle_.get(), ret);
-    switch (error) {
-      case SSL_ERROR_NONE:
-        LOG(ERROR) << "SSL_get_error returned no error";
-        return 0;
-      case SSL_ERROR_ZERO_RETURN:
-        LOG(DEBUG) << "SSL_ZERO_RETURN";
-        return 0;
-      case SSL_ERROR_WANT_READ:
-        LOG(DEBUG) << "SSL_WANT_READ";
-        return 0;
-      case SSL_ERROR_WANT_WRITE:
-        LOG(DEBUG) << "SSL_WANT_WRITE";
-        return 0;
-      case SSL_ERROR_WANT_CONNECT:
-      case SSL_ERROR_WANT_ACCEPT:
-      case SSL_ERROR_WANT_X509_LOOKUP:
-        LOG(DEBUG) << "SSL: CONNECT ACCEPT LOOKUP";
-        return 0;
-      case SSL_ERROR_SYSCALL:
-        if (ERR_peek_error() == 0) {
-          if (os_error.code() != 0) {
-            LOG(DEBUG) << "SSL_ERROR_SYSCALL";
-            return std::move(os_error);
-          } else {
-            LOG(DEBUG) << "SSL_SYSCALL";
-            return 0;
-          }
-        }
-        /* fallthrough */
-      default:
-        LOG(DEBUG) << "SSL_ERROR Default";
-        return create_openssl_error(1, "SSL error ");
-    }
-  }
-};
-
-namespace {
-int strm_read(BIO *b, char *buf, int len) {
-  auto *stream = static_cast<SslStreamImpl *>(BIO_get_data(b));
-  CHECK(stream != nullptr);
-  BIO_clear_retry_flags(b);
-  CHECK(buf != nullptr);
-  auto res = narrow_cast<int>(stream->flow_read(MutableSlice(buf, len)));
-  if (res == 0) {
-    BIO_set_retry_read(b);
-    return -1;
-  }
-  return res;
-}
-int strm_write(BIO *b, const char *buf, int len) {
-  auto *stream = static_cast<SslStreamImpl *>(BIO_get_data(b));
-  CHECK(stream != nullptr);
-  BIO_clear_retry_flags(b);
-  CHECK(buf != nullptr);
-  return narrow_cast<int>(stream->flow_write(Slice(buf, len)));
-}
-}  // namespace
-
-}  // namespace detail
-
-SslStream::SslStream() = default;
-SslStream::SslStream(SslStream &&) noexcept = default;
-SslStream &SslStream::operator=(SslStream &&) noexcept = default;
-SslStream::~SslStream() = default;
-
-Result<SslStream> SslStream::create(CSlice host, SslCtx ssl_ctx, bool use_ip_address_as_host) {
-  auto impl = make_unique<detail::SslStreamImpl>();
-  TRY_STATUS(impl->init(host, ssl_ctx, use_ip_address_as_host));
-  return SslStream(std::move(impl));
-}
-SslStream::SslStream(unique_ptr<detail::SslStreamImpl> impl) : impl_(std::move(impl)) {
-}
-ByteFlowInterface &SslStream::read_byte_flow() {
-  return impl_->read_byte_flow();
-}
-ByteFlowInterface &SslStream::write_byte_flow() {
-  return impl_->write_byte_flow();
-}
-size_t SslStream::flow_read(MutableSlice slice) {
-  return impl_->flow_read(slice);
-}
-size_t SslStream::flow_write(Slice slice) {
-  return impl_->flow_write(slice);
-}
-
-}  // namespace td
-
-#else
-
-namespace td {
-
-namespace detail {
-class SslStreamImpl {};
-}  // namespace detail
-
-SslStream::SslStream() = default;
-SslStream::SslStream(SslStream &&) noexcept = default;
-SslStream &SslStream::operator=(SslStream &&) noexcept = default;
-SslStream::~SslStream() = default;
-
-Result<SslStream> SslStream::create(CSlice host, SslCtx ssl_ctx, bool check_ip_address_as_host) {
-  return Status::Error("Not supported in Emscripten");
-}
-
-SslStream::SslStream(unique_ptr<detail::SslStreamImpl> impl) : impl_(std::move(impl)) {
-}
-
-ByteFlowInterface &SslStream::read_byte_flow() {
-  UNREACHABLE();
-}
-
-ByteFlowInterface &SslStream::write_byte_flow() {
-  UNREACHABLE();
-}
-
-size_t SslStream::flow_read(MutableSlice slice) {
-  UNREACHABLE();
-}
-
-size_t SslStream::flow_write(Slice slice) {
-  UNREACHABLE();
-}
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdnet/td/net/SslStream.h b/third-party/td/td/tdnet/td/net/SslStream.h
deleted file mode 100644
index b0bf27814d..0000000000
--- a/third-party/td/td/tdnet/td/net/SslStream.h
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/SslCtx.h"
-
-#include "td/utils/ByteFlow.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-namespace detail {
-class SslStreamImpl;
-}  // namespace detail
-
-class SslStream {
- public:
-  SslStream();
-  SslStream(SslStream &&) noexcept;
-  SslStream &operator=(SslStream &&) noexcept;
-  ~SslStream();
-
-  static Result<SslStream> create(CSlice host, SslCtx ssl_ctx, bool use_ip_address_as_host = false);
-
-  ByteFlowInterface &read_byte_flow();
-  ByteFlowInterface &write_byte_flow();
-
-  size_t flow_read(MutableSlice slice);
-  size_t flow_write(Slice slice);
-
-  explicit operator bool() const noexcept {
-    return static_cast<bool>(impl_);
-  }
-
- private:
-  unique_ptr<detail::SslStreamImpl> impl_;
-
-  explicit SslStream(unique_ptr<detail::SslStreamImpl> impl);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/TcpListener.cpp b/third-party/td/td/tdnet/td/net/TcpListener.cpp
deleted file mode 100644
index df1253f589..0000000000
--- a/third-party/td/td/tdnet/td/net/TcpListener.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/TcpListener.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/PollableFd.h"
-
-namespace td {
-
-TcpListener::TcpListener(int port, ActorShared<Callback> callback, Slice server_address)
-    : port_(port), callback_(std::move(callback)), server_address_(server_address.str()) {
-}
-
-void TcpListener::hangup() {
-  stop();
-}
-
-void TcpListener::start_up() {
-  auto r_socket = ServerSocketFd::open(port_, server_address_);
-  if (r_socket.is_error()) {
-    LOG(ERROR) << "Can't open server socket: " << r_socket.error();
-    set_timeout_in(5);
-    return;
-  }
-  server_fd_ = r_socket.move_as_ok();
-  Scheduler::subscribe(server_fd_.get_poll_info().extract_pollable_fd(this));
-}
-
-void TcpListener::tear_down() {
-  if (!server_fd_.empty()) {
-    Scheduler::unsubscribe_before_close(server_fd_.get_poll_info().get_pollable_fd_ref());
-    server_fd_.close();
-  }
-}
-
-void TcpListener::loop() {
-  if (server_fd_.empty()) {
-    start_up();
-    if (server_fd_.empty()) {
-      return;
-    }
-  }
-  sync_with_poll(server_fd_);
-  while (can_read_local(server_fd_)) {
-    auto r_socket_fd = server_fd_.accept();
-    if (r_socket_fd.is_error()) {
-      if (r_socket_fd.error().code() != -1) {
-        LOG(ERROR) << r_socket_fd.error();
-      }
-      continue;
-    }
-    send_closure(callback_, &Callback::accept, r_socket_fd.move_as_ok());
-  }
-
-  if (can_close_local(server_fd_)) {
-    stop();
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/TcpListener.h b/third-party/td/td/tdnet/td/net/TcpListener.h
deleted file mode 100644
index b840ba93d4..0000000000
--- a/third-party/td/td/tdnet/td/net/TcpListener.h
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/ServerSocketFd.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class TcpListener final : public Actor {
- public:
-  class Callback : public Actor {
-   public:
-    virtual void accept(SocketFd fd) = 0;
-  };
-
-  TcpListener(int port, ActorShared<Callback> callback, Slice server_address = Slice("0.0.0.0"));
-  void hangup() final;
-
- private:
-  int port_;
-  ServerSocketFd server_fd_;
-  ActorShared<Callback> callback_;
-  const string server_address_;
-  void start_up() final;
-  void tear_down() final;
-  void loop() final;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/TransparentProxy.cpp b/third-party/td/td/tdnet/td/net/TransparentProxy.cpp
deleted file mode 100644
index ba21adca87..0000000000
--- a/third-party/td/td/tdnet/td/net/TransparentProxy.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/TransparentProxy.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/PollableFd.h"
-
-namespace td {
-
-int VERBOSITY_NAME(proxy) = VERBOSITY_NAME(DEBUG);
-
-TransparentProxy::TransparentProxy(SocketFd socket_fd, IPAddress ip_address, string username, string password,
-                                   unique_ptr<Callback> callback, ActorShared<> parent)
-    : fd_(std::move(socket_fd))
-    , ip_address_(std::move(ip_address))
-    , username_(std::move(username))
-    , password_(std::move(password))
-    , callback_(std::move(callback))
-    , parent_(std::move(parent)) {
-}
-
-void TransparentProxy::on_error(Status status) {
-  CHECK(status.is_error());
-  VLOG(proxy) << "Receive " << status;
-  if (callback_) {
-    callback_->set_result(std::move(status));
-    callback_.reset();
-  }
-  stop();
-}
-
-void TransparentProxy::tear_down() {
-  VLOG(proxy) << "Finish to connect to proxy";
-  Scheduler::unsubscribe(fd_.get_poll_info().get_pollable_fd_ref());
-  if (callback_) {
-    if (!fd_.input_buffer().empty()) {
-      LOG(ERROR) << "Have " << fd_.input_buffer().size() << " unread bytes";
-      callback_->set_result(Status::Error("Proxy has sent too many data"));
-    } else {
-      callback_->set_result(std::move(fd_));
-    }
-    callback_.reset();
-  }
-}
-
-void TransparentProxy::hangup() {
-  on_error(Status::Error("Canceled"));
-}
-
-void TransparentProxy::start_up() {
-  VLOG(proxy) << "Begin to connect to proxy";
-  Scheduler::subscribe(fd_.get_poll_info().extract_pollable_fd(this));
-  set_timeout_in(10);
-  sync_with_poll(fd_);
-  if (can_write_local(fd_)) {
-    loop();
-  }
-}
-
-void TransparentProxy::loop() {
-  sync_with_poll(fd_);
-  auto status = [&] {
-    TRY_STATUS(fd_.flush_read());
-    TRY_STATUS(loop_impl());
-    TRY_STATUS(fd_.flush_write());
-    if (can_close_local(fd_)) {
-      return Status::Error("Connection closed");
-    }
-    return Status::OK();
-  }();
-  if (status.is_error()) {
-    on_error(std::move(status));
-  }
-}
-
-void TransparentProxy::timeout_expired() {
-  on_error(Status::Error("Connection timeout expired"));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/TransparentProxy.h b/third-party/td/td/tdnet/td/net/TransparentProxy.h
deleted file mode 100644
index d872d09091..0000000000
--- a/third-party/td/td/tdnet/td/net/TransparentProxy.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/actor/actor.h"
-
-#include "td/utils/BufferedFd.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-extern int VERBOSITY_NAME(proxy);
-
-class TransparentProxy : public Actor {
- public:
-  class Callback {
-   public:
-    Callback() = default;
-    Callback(const Callback &) = delete;
-    Callback &operator=(const Callback &) = delete;
-    virtual ~Callback() = default;
-
-    virtual void set_result(Result<BufferedFd<SocketFd>> r_buffered_socket_fd) = 0;
-    virtual void on_connected() = 0;
-  };
-
-  TransparentProxy(SocketFd socket_fd, IPAddress ip_address, string username, string password,
-                   unique_ptr<Callback> callback, ActorShared<> parent);
-
- protected:
-  BufferedFd<SocketFd> fd_;
-  IPAddress ip_address_;
-  string username_;
-  string password_;
-  unique_ptr<Callback> callback_;
-  ActorShared<> parent_;
-
-  void on_error(Status status);
-  void tear_down() override;
-  void start_up() override;
-  void hangup() override;
-
-  void loop() override;
-  void timeout_expired() override;
-
-  virtual Status loop_impl() = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/Wget.cpp b/third-party/td/td/tdnet/td/net/Wget.cpp
deleted file mode 100644
index 75f0fee398..0000000000
--- a/third-party/td/td/tdnet/td/net/Wget.cpp
+++ /dev/null
@@ -1,158 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/net/Wget.h"
-
-#include "td/net/HttpHeaderCreator.h"
-#include "td/net/HttpOutboundConnection.h"
-#include "td/net/SslStream.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <limits>
-
-namespace td {
-
-Wget::Wget(Promise<unique_ptr<HttpQuery>> promise, string url, std::vector<std::pair<string, string>> headers,
-           int32 timeout_in, int32 ttl, bool prefer_ipv6, SslCtx::VerifyPeer verify_peer, string content,
-           string content_type)
-    : promise_(std::move(promise))
-    , input_url_(std::move(url))
-    , headers_(std::move(headers))
-    , timeout_in_(timeout_in)
-    , ttl_(ttl)
-    , prefer_ipv6_(prefer_ipv6)
-    , verify_peer_(verify_peer)
-    , content_(std::move(content))
-    , content_type_(std::move(content_type)) {
-}
-
-Status Wget::try_init() {
-  TRY_RESULT(url, parse_url(input_url_));
-  TRY_RESULT_ASSIGN(url.host_, idn_to_ascii(url.host_));
-
-  HttpHeaderCreator hc;
-  if (content_.empty()) {
-    hc.init_get(url.query_);
-  } else {
-    hc.init_post(url.query_);
-    hc.set_content_size(content_.size());
-    if (!content_type_.empty()) {
-      hc.set_content_type(content_type_);
-    }
-  }
-  bool was_host = false;
-  bool was_accept_encoding = false;
-  for (auto &header : headers_) {
-    auto header_lower = to_lower(header.first);
-    if (header_lower == "host") {
-      was_host = true;
-    }
-    if (header_lower == "accept-encoding") {
-      was_accept_encoding = true;
-    }
-    hc.add_header(header.first, header.second);
-  }
-  if (!was_host) {
-    hc.add_header("Host", url.host_);
-  }
-  if (!was_accept_encoding) {
-    hc.add_header("Accept-Encoding", "gzip, deflate");
-  }
-  TRY_RESULT(header, hc.finish(content_));
-
-  IPAddress addr;
-  TRY_STATUS(addr.init_host_port(url.host_, url.port_, prefer_ipv6_));
-
-  TRY_RESULT(fd, SocketFd::open(addr));
-  if (fd.empty()) {
-    return Status::Error("Sockets are not supported");
-  }
-  if (url.protocol_ == HttpUrl::Protocol::Http) {
-    connection_ = create_actor<HttpOutboundConnection>("Connect", BufferedFd<SocketFd>(std::move(fd)), SslStream{},
-                                                       std::numeric_limits<std::size_t>::max(), 0, 0,
-                                                       ActorOwn<HttpOutboundConnection::Callback>(actor_id(this)));
-  } else {
-    TRY_RESULT(ssl_ctx, SslCtx::create(CSlice() /* certificate */, verify_peer_));
-    TRY_RESULT(ssl_stream, SslStream::create(url.host_, std::move(ssl_ctx)));
-    connection_ = create_actor<HttpOutboundConnection>(
-        "Connect", BufferedFd<SocketFd>(std::move(fd)), std::move(ssl_stream), std::numeric_limits<std::size_t>::max(),
-        0, 0, ActorOwn<HttpOutboundConnection::Callback>(actor_id(this)));
-  }
-
-  send_closure(connection_, &HttpOutboundConnection::write_next, BufferSlice(header));
-  send_closure(connection_, &HttpOutboundConnection::write_ok);
-  return Status::OK();
-}
-
-void Wget::loop() {
-  if (connection_.empty()) {
-    auto status = try_init();
-    if (status.is_error()) {
-      return on_error(std::move(status));
-    }
-  }
-}
-
-void Wget::handle(unique_ptr<HttpQuery> result) {
-  on_ok(std::move(result));
-}
-
-void Wget::on_connection_error(Status error) {
-  on_error(std::move(error));
-}
-
-void Wget::on_ok(unique_ptr<HttpQuery> http_query_ptr) {
-  CHECK(promise_);
-  CHECK(http_query_ptr);
-  if ((http_query_ptr->code_ == 301 || http_query_ptr->code_ == 302 || http_query_ptr->code_ == 307 ||
-       http_query_ptr->code_ == 308) &&
-      ttl_ > 0) {
-    LOG(DEBUG) << *http_query_ptr;
-    input_url_ = http_query_ptr->get_header("location").str();
-    LOG(DEBUG) << input_url_;
-    ttl_--;
-    connection_.reset();
-    yield();
-  } else if (http_query_ptr->code_ >= 200 && http_query_ptr->code_ < 300) {
-    promise_.set_value(std::move(http_query_ptr));
-    stop();
-  } else {
-    on_error(Status::Error(PSLICE() << "HTTP error: " << http_query_ptr->code_));
-  }
-}
-
-void Wget::on_error(Status error) {
-  CHECK(error.is_error());
-  CHECK(promise_);
-  promise_.set_error(std::move(error));
-  stop();
-}
-
-void Wget::start_up() {
-  set_timeout_in(timeout_in_);
-  loop();
-}
-
-void Wget::timeout_expired() {
-  on_error(Status::Error("Response timeout expired"));
-}
-
-void Wget::tear_down() {
-  if (promise_) {
-    on_error(Status::Error("Canceled"));
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdnet/td/net/Wget.h b/third-party/td/td/tdnet/td/net/Wget.h
deleted file mode 100644
index d505349955..0000000000
--- a/third-party/td/td/tdnet/td/net/Wget.h
+++ /dev/null
@@ -1,53 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/net/HttpOutboundConnection.h"
-#include "td/net/HttpQuery.h"
-#include "td/net/SslCtx.h"
-
-#include "td/actor/actor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Status.h"
-
-#include <utility>
-
-namespace td {
-
-class Wget final : public HttpOutboundConnection::Callback {
- public:
-  Wget(Promise<unique_ptr<HttpQuery>> promise, string url, std::vector<std::pair<string, string>> headers = {},
-       int32 timeout_in = 10, int32 ttl = 3, bool prefer_ipv6 = false,
-       SslCtx::VerifyPeer verify_peer = SslCtx::VerifyPeer::On, string content = {}, string content_type = {});
-
- private:
-  Status try_init();
-  void loop() final;
-  void handle(unique_ptr<HttpQuery> result) final;
-  void on_connection_error(Status error) final;
-  void on_ok(unique_ptr<HttpQuery> http_query_ptr);
-  void on_error(Status error);
-
-  void tear_down() final;
-  void start_up() final;
-  void timeout_expired() final;
-
-  Promise<unique_ptr<HttpQuery>> promise_;
-  ActorOwn<HttpOutboundConnection> connection_;
-  string input_url_;
-  std::vector<std::pair<string, string>> headers_;
-  int32 timeout_in_;
-  int32 ttl_;
-  bool prefer_ipv6_ = false;
-  SslCtx::VerifyPeer verify_peer_;
-  string content_;
-  string content_type_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdtl/CMakeLists.txt b/third-party/td/td/tdtl/CMakeLists.txt
deleted file mode 100644
index 6db5fc3b5f..0000000000
--- a/third-party/td/td/tdtl/CMakeLists.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-set(TDTL_SOURCE
-  td/tl/tl_config.cpp
-  td/tl/tl_core.cpp
-  td/tl/tl_file_outputer.cpp
-  td/tl/tl_file_utils.cpp
-  td/tl/tl_generate.cpp
-  td/tl/tl_outputer.cpp
-  td/tl/tl_string_outputer.cpp
-  td/tl/tl_writer.cpp
-
-  td/tl/tl_config.h
-  td/tl/tl_core.h
-  td/tl/tl_file_outputer.h
-  td/tl/tl_file_utils.h
-  td/tl/tl_generate.h
-  td/tl/tl_outputer.h
-  td/tl/tl_simple.h
-  td/tl/tl_simple_parser.h
-  td/tl/tl_string_outputer.h
-  td/tl/tl_writer.h
-)
-
-add_library(tdtl STATIC ${TDTL_SOURCE})
-target_include_directories(tdtl PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
diff --git a/third-party/td/td/tdtl/td/tl/tl_config.cpp b/third-party/td/td/tdtl/td/tl/tl_config.cpp
deleted file mode 100644
index 4807ab806c..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_config.cpp
+++ /dev/null
@@ -1,364 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_config.h"
-
-#include <cassert>
-#include <cstdio>
-#include <cstdlib>
-
-namespace td {
-namespace tl {
-
-const std::int32_t TLS_SCHEMA_V2 = 0x3a2f9be2;
-const std::int32_t TLS_SCHEMA_V3 = 0xe4a8604b;
-const std::int32_t TLS_SCHEMA_V4 = 0x90ac88d7;
-const std::int32_t TLS_TYPE = 0x12eb4386;
-const std::int32_t TLS_COMBINATOR = 0x5c0a1ed5;
-const std::int32_t TLS_COMBINATOR_LEFT_BUILTIN = 0xcd211f63;
-const std::int32_t TLS_COMBINATOR_LEFT = 0x4c12c6d9;
-const std::int32_t TLS_COMBINATOR_RIGHT_V2 = 0x2c064372;
-const std::int32_t TLS_ARG_V2 = 0x29dfe61b;
-
-const std::int32_t TLS_EXPR_NAT = 0xdcb49bd8;
-const std::int32_t TLS_EXPR_TYPE = 0xecc9da78;
-
-const std::int32_t TLS_NAT_CONST_OLD = 0xdcb49bd8;
-const std::int32_t TLS_NAT_CONST = 0x8ce940b1;
-const std::int32_t TLS_NAT_VAR = 0x4e8a14f0;
-const std::int32_t TLS_TYPE_VAR = 0x0142ceae;
-const std::int32_t TLS_ARRAY = 0xd9fb20de;
-const std::int32_t TLS_TYPE_EXPR = 0xc1863d08;
-
-void tl_config::add_type(tl_type *type) {
-  types.push_back(type);
-  id_to_type[type->id] = type;
-  name_to_type[type->name] = type;
-}
-
-tl_type *tl_config::get_type(std::int32_t type_id) const {
-  std::map<std::int32_t, tl_type *>::const_iterator it = id_to_type.find(type_id);
-  assert(it != id_to_type.end());
-  return it->second;
-}
-
-tl_type *tl_config::get_type(const std::string &type_name) {
-  return name_to_type[type_name];
-}
-
-void tl_config::add_function(tl_combinator *function) {
-  functions.push_back(function);
-  id_to_function[function->id] = function;
-  name_to_function[function->name] = function;
-}
-
-tl_combinator *tl_config::get_function(std::int32_t function_id) {
-  return id_to_function[function_id];
-}
-
-tl_combinator *tl_config::get_function(const std::string &function_name) {
-  return name_to_function[function_name];
-}
-
-std::size_t tl_config::get_type_count() const {
-  return types.size();
-}
-
-tl_type *tl_config::get_type_by_num(std::size_t num) const {
-  return types[num];
-}
-
-std::size_t tl_config::get_function_count() const {
-  return functions.size();
-}
-
-tl_combinator *tl_config::get_function_by_num(std::size_t num) const {
-  return functions[num];
-}
-
-std::int32_t tl_config_parser::try_parse_int() {
-  return try_parse(p.fetch_int());
-}
-
-std::int64_t tl_config_parser::try_parse_long() {
-  return try_parse(p.fetch_long());
-}
-
-std::string tl_config_parser::try_parse_string() {
-  return try_parse(p.fetch_string());
-}
-
-template <class T>
-T tl_config_parser::try_parse(const T &res) const {
-  if (p.get_error() != NULL) {
-    std::fprintf(stderr, "Wrong TL-scheme specified: %s at %d\n", p.get_error(), static_cast<int>(p.get_error_pos()));
-    std::abort();
-  }
-
-  return res;
-}
-
-int tl_config_parser::get_schema_version(std::int32_t version_id) {
-  if (version_id == TLS_SCHEMA_V4) {
-    return 4;
-  }
-  if (version_id == TLS_SCHEMA_V3) {
-    return 3;
-  }
-  if (version_id == TLS_SCHEMA_V2) {
-    return 2;
-  }
-  return -1;
-}
-
-tl_tree *tl_config_parser::read_num_const() {
-  int num = static_cast<int>(try_parse_int());
-
-  return new tl_tree_nat_const(FLAG_NOVAR, num);
-}
-
-tl_tree *tl_config_parser::read_num_var(int *var_count) {
-  std::int32_t diff = try_parse_int();
-  int var_num = static_cast<int>(try_parse_int());
-
-  if (var_num >= *var_count) {
-    *var_count = var_num + 1;
-  }
-
-  return new tl_tree_var_num(0, var_num, diff);
-}
-
-tl_tree *tl_config_parser::read_type_var(int *var_count) {
-  int var_num = static_cast<int>(try_parse_int());
-  std::int32_t flags = try_parse_int();
-
-  if (var_num >= *var_count) {
-    *var_count = var_num + 1;
-  }
-  assert(!(flags & (FLAG_NOVAR | FLAG_BARE)));
-
-  return new tl_tree_var_type(flags, var_num);
-}
-
-tl_tree *tl_config_parser::read_array(int *var_count) {
-  std::int32_t flags = FLAG_NOVAR;
-  tl_tree *multiplicity = read_nat_expr(var_count);
-
-  tl_tree_array *T = new tl_tree_array(flags, multiplicity, read_args_list(var_count));
-
-  for (std::size_t i = 0; i < T->args.size(); i++) {
-    if (!(T->args[i].flags & FLAG_NOVAR)) {
-      T->flags &= ~FLAG_NOVAR;
-    }
-  }
-  return T;
-}
-
-tl_tree *tl_config_parser::read_type(int *var_count) {
-  tl_type *type = config.get_type(try_parse_int());
-  assert(type != NULL);
-  std::int32_t flags = try_parse_int() | FLAG_NOVAR;
-  int arity = static_cast<int>(try_parse_int());
-  assert(type->arity == arity);
-
-  tl_tree_type *T = new tl_tree_type(flags, type, arity);
-  for (std::int32_t i = 0; i < arity; i++) {
-    tl_tree *child = read_expr(var_count);
-
-    T->children[i] = child;
-    if (!(child->flags & FLAG_NOVAR)) {
-      T->flags &= ~FLAG_NOVAR;
-    }
-  }
-  return T;
-}
-
-tl_tree *tl_config_parser::read_type_expr(int *var_count) {
-  std::int32_t tree_type = try_parse_int();
-  switch (tree_type) {
-    case TLS_TYPE_VAR:
-      return read_type_var(var_count);
-    case TLS_TYPE_EXPR:
-      return read_type(var_count);
-    case TLS_ARRAY:
-      return read_array(var_count);
-    default:
-      std::fprintf(stderr, "tree_type = %d\n", static_cast<int>(tree_type));
-      std::abort();
-  }
-}
-
-tl_tree *tl_config_parser::read_nat_expr(int *var_count) {
-  std::int32_t tree_type = try_parse_int();
-  switch (tree_type) {
-    case TLS_NAT_CONST_OLD:
-    case TLS_NAT_CONST:
-      return read_num_const();
-    case TLS_NAT_VAR:
-      return read_num_var(var_count);
-    default:
-      std::fprintf(stderr, "tree_type = %d\n", static_cast<int>(tree_type));
-      std::abort();
-  }
-}
-
-tl_tree *tl_config_parser::read_expr(int *var_count) {
-  std::int32_t tree_type = try_parse_int();
-  switch (tree_type) {
-    case TLS_EXPR_NAT:
-      return read_nat_expr(var_count);
-    case TLS_EXPR_TYPE:
-      return read_type_expr(var_count);
-    default:
-      std::fprintf(stderr, "tree_type = %d\n", static_cast<int>(tree_type));
-      std::abort();
-  }
-}
-
-std::vector<arg> tl_config_parser::read_args_list(int *var_count) {
-  const int schema_flag_opt_field = 2 << static_cast<int>(schema_version >= 3);
-  const int schema_flag_has_vars = schema_flag_opt_field ^ 6;
-
-  std::size_t args_num = static_cast<size_t>(try_parse_int());
-  std::vector<arg> args(args_num);
-  for (std::size_t i = 0; i < args_num; i++) {
-    arg cur_arg;
-
-    std::int32_t arg_v = try_parse_int();
-    if (arg_v != TLS_ARG_V2) {
-      std::fprintf(stderr, "Wrong tls_arg magic %d\n", static_cast<int>(arg_v));
-      std::abort();
-    }
-
-    cur_arg.name = try_parse_string();
-    cur_arg.flags = try_parse_int();
-
-    bool is_optional = false;
-    if (cur_arg.flags & schema_flag_opt_field) {
-      cur_arg.flags &= ~schema_flag_opt_field;
-      is_optional = true;
-    }
-    if (cur_arg.flags & schema_flag_has_vars) {
-      cur_arg.flags &= ~schema_flag_has_vars;
-      cur_arg.var_num = static_cast<int>(try_parse_int());
-    } else {
-      cur_arg.var_num = -1;
-    }
-
-    if (cur_arg.var_num >= *var_count) {
-      *var_count = cur_arg.var_num + 1;
-    }
-    if (is_optional) {
-      cur_arg.exist_var_num = static_cast<int>(try_parse_int());
-      cur_arg.exist_var_bit = static_cast<int>(try_parse_int());
-    } else {
-      cur_arg.exist_var_num = -1;
-      cur_arg.exist_var_bit = 0;
-    }
-    cur_arg.type = read_type_expr(var_count);
-    if (/*cur_arg.var_num < 0 && cur_arg.exist_var_num < 0 && */ (cur_arg.type->flags & FLAG_NOVAR)) {
-      cur_arg.flags |= FLAG_NOVAR;
-    }
-
-    args[i] = cur_arg;
-  }
-  return args;
-}
-
-tl_combinator *tl_config_parser::read_combinator() {
-  std::int32_t t = try_parse_int();
-  if (t != TLS_COMBINATOR) {
-    std::fprintf(stderr, "Wrong tls_combinator magic %d\n", static_cast<int>(t));
-    std::abort();
-  }
-
-  tl_combinator *combinator = new tl_combinator();
-  combinator->id = try_parse_int();
-  combinator->name = try_parse_string();
-  combinator->type_id = try_parse_int();
-  combinator->var_count = 0;
-
-  std::int32_t left_type = try_parse_int();
-  if (left_type == TLS_COMBINATOR_LEFT) {
-    combinator->args = read_args_list(&combinator->var_count);
-  } else {
-    if (left_type != TLS_COMBINATOR_LEFT_BUILTIN) {
-      std::fprintf(stderr, "Wrong tls_combinator_left magic %d\n", static_cast<int>(left_type));
-      std::abort();
-    }
-  }
-
-  std::int32_t right_ver = try_parse_int();
-  if (right_ver != TLS_COMBINATOR_RIGHT_V2) {
-    std::fprintf(stderr, "Wrong tls_combinator_right magic %d\n", static_cast<int>(right_ver));
-    std::abort();
-  }
-  combinator->result = read_type_expr(&combinator->var_count);
-
-  return combinator;
-}
-
-tl_type *tl_config_parser::read_type() {
-  std::int32_t t = try_parse_int();
-  if (t != TLS_TYPE) {
-    std::fprintf(stderr, "Wrong tls_type magic %d\n", t);
-    std::abort();
-  }
-
-  tl_type *type = new tl_type();
-  type->id = try_parse_int();
-  type->name = try_parse_string();
-  type->constructors_num = static_cast<std::size_t>(try_parse_int());
-  type->constructors.reserve(type->constructors_num);
-  type->flags = try_parse_int();
-  type->flags &= ~(1 | 8 | 16 | 1024);
-  if (type->flags != 0) {
-    std::fprintf(stderr, "Type %s has non-zero flags: %d\n", type->name.c_str(), static_cast<int>(type->flags));
-  }
-  type->arity = static_cast<int>(try_parse_int());
-
-  try_parse_long();  // unused
-  return type;
-}
-
-tl_config tl_config_parser::parse_config() {
-  schema_version = get_schema_version(try_parse_int());
-  if (schema_version < 2) {
-    std::fprintf(stderr, "Unsupported tl-schema version %d\n", static_cast<int>(schema_version));
-    std::abort();
-  }
-
-  try_parse_int();  // date
-  try_parse_int();  // version
-
-  std::int32_t types_n = try_parse_int();
-  std::size_t constructors_total = 0;
-  for (std::int32_t i = 0; i < types_n; i++) {
-    tl_type *type = read_type();
-    config.add_type(type);
-    constructors_total += type->constructors_num;
-  }
-
-  std::int32_t constructors_n = try_parse_int();
-  assert(static_cast<std::size_t>(constructors_n) == constructors_total);
-  (void)constructors_total;
-  for (std::int32_t i = 0; i < constructors_n; i++) {
-    tl_combinator *constructor = read_combinator();
-    config.get_type(constructor->type_id)->add_constructor(constructor);
-  }
-
-  std::int32_t functions_n = try_parse_int();
-  for (std::int32_t i = 0; i < functions_n; i++) {
-    config.add_function(read_combinator());
-  }
-  p.fetch_end();
-  try_parse(0);
-
-  return config;
-}
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_config.h b/third-party/td/td/tdtl/td/tl/tl_config.h
deleted file mode 100644
index 0b3e55fde0..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_config.h
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_core.h"
-#include "td/tl/tl_simple_parser.h"
-
-#include <cstddef>
-#include <cstdint>
-#include <map>
-#include <string>
-#include <vector>
-
-namespace td {
-namespace tl {
-
-class tl_config {
-  std::vector<tl_type *> types;
-  std::map<std::int32_t, tl_type *> id_to_type;
-  std::map<std::string, tl_type *> name_to_type;
-
-  std::vector<tl_combinator *> functions;
-  std::map<std::int32_t, tl_combinator *> id_to_function;
-  std::map<std::string, tl_combinator *> name_to_function;
-
- public:
-  void add_type(tl_type *type);
-
-  tl_type *get_type(std::int32_t type_id) const;
-
-  tl_type *get_type(const std::string &type_name);
-
-  void add_function(tl_combinator *function);
-
-  tl_combinator *get_function(std::int32_t function_id);
-
-  tl_combinator *get_function(const std::string &function_name);
-
-  std::size_t get_type_count() const;
-
-  tl_type *get_type_by_num(std::size_t num) const;
-
-  std::size_t get_function_count() const;
-
-  tl_combinator *get_function_by_num(std::size_t num) const;
-};
-
-class tl_config_parser {
-  tl_simple_parser p;
-  int schema_version;
-  tl_config config;
-
-  static int get_schema_version(std::int32_t version_id);
-
-  tl_tree *read_num_const();
-  tl_tree *read_num_var(int *var_count);
-  tl_tree *read_type_var(int *var_count);
-  tl_tree *read_array(int *var_count);
-  tl_tree *read_type(int *var_count);
-  tl_tree *read_type_expr(int *var_count);
-  tl_tree *read_nat_expr(int *var_count);
-  tl_tree *read_expr(int *var_count);
-  std::vector<arg> read_args_list(int *var_count);
-
-  tl_combinator *read_combinator();
-  tl_type *read_type();
-
-  template <class T>
-  T try_parse(const T &res) const;
-
-  std::int32_t try_parse_int();
-  std::int64_t try_parse_long();
-  std::string try_parse_string();
-
- public:
-  tl_config_parser(const char *s, std::size_t len) : p(s, len), schema_version(-1) {
-  }
-
-  tl_config parse_config();
-};
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_core.cpp b/third-party/td/td/tdtl/td/tl/tl_core.cpp
deleted file mode 100644
index 5aca5733c2..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_core.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_core.h"
-
-#include <cassert>
-
-namespace td {
-namespace tl {
-
-void tl_type::add_constructor(tl_combinator *new_constructor) {
-  constructors.push_back(new_constructor);
-
-  assert(constructors.size() <= constructors_num);
-}
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_core.h b/third-party/td/td/tdtl/td/tl/tl_core.h
deleted file mode 100644
index e7f085436a..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_core.h
+++ /dev/null
@@ -1,159 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <cstddef>
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-namespace tl {
-
-const int NODE_TYPE_TYPE = 1;
-const int NODE_TYPE_NAT_CONST = 2;
-const int NODE_TYPE_VAR_TYPE = 3;
-const int NODE_TYPE_VAR_NUM = 4;
-const int NODE_TYPE_ARRAY = 5;
-
-const std::int32_t ID_VAR_NUM = 0x70659eff;
-const std::int32_t ID_VAR_TYPE = 0x2cecf817;
-const std::int32_t ID_INT = 0xa8509bda;
-const std::int32_t ID_LONG = 0x22076cba;
-const std::int32_t ID_DOUBLE = 0x2210c154;
-const std::int32_t ID_STRING = 0xb5286e24;
-const std::int32_t ID_VECTOR = 0x1cb5c415;
-const std::int32_t ID_DICTIONARY = 0x1f4c618f;
-const std::int32_t ID_MAYBE_TRUE = 0x3f9c8ef8;
-const std::int32_t ID_MAYBE_FALSE = 0x27930a7b;
-const std::int32_t ID_BOOL_FALSE = 0xbc799737;
-const std::int32_t ID_BOOL_TRUE = 0x997275b5;
-
-const std::int32_t FLAG_OPT_VAR = (1 << 17);
-const std::int32_t FLAG_EXCL = (1 << 18);
-const std::int32_t FLAG_NOVAR = (1 << 21);
-const std::int32_t FLAG_DEFAULT_CONSTRUCTOR = (1 << 25);
-const std::int32_t FLAG_BARE = (1 << 0);
-const std::int32_t FLAG_COMPLEX = (1 << 1);
-const std::int32_t FLAGS_MASK = ((1 << 16) - 1);
-
-class tl_combinator;
-
-class tl_tree;
-
-class tl_type {
- public:
-  std::int32_t id;
-  std::string name;
-  int arity;
-  std::int32_t flags;
-  int simple_constructors;
-  std::size_t constructors_num;
-  std::vector<tl_combinator *> constructors;
-
-  void add_constructor(tl_combinator *new_constructor);
-};
-
-class arg {
- public:
-  std::string name;
-  std::int32_t flags;
-  int var_num;
-  int exist_var_num;
-  int exist_var_bit;
-  tl_tree *type;
-};
-
-class tl_combinator {
- public:
-  std::int32_t id;
-  std::string name;
-  int var_count;
-  std::int32_t type_id;
-  std::vector<arg> args;
-  tl_tree *result;
-};
-
-class tl_tree {
- public:
-  std::int32_t flags;
-
-  explicit tl_tree(std::int32_t flags) : flags(flags) {
-  }
-
-  virtual int get_type() const = 0;
-
-  virtual ~tl_tree() {
-  }
-};
-
-class tl_tree_type : public tl_tree {
- public:
-  tl_type *type;
-  std::vector<tl_tree *> children;
-
-  tl_tree_type(std::int32_t flags, tl_type *type, int child_count) : tl_tree(flags), type(type), children(child_count) {
-  }
-
-  virtual int get_type() const {
-    return NODE_TYPE_TYPE;
-  }
-};
-
-class tl_tree_nat_const : public tl_tree {
- public:
-  int num;
-
-  tl_tree_nat_const(std::int32_t flags, int num) : tl_tree(flags), num(num) {
-  }
-
-  virtual int get_type() const {
-    return NODE_TYPE_NAT_CONST;
-  }
-};
-
-class tl_tree_var_type : public tl_tree {
- public:
-  int var_num;
-
-  tl_tree_var_type(std::int32_t flags, int var_num) : tl_tree(flags), var_num(var_num) {
-  }
-
-  virtual int get_type() const {
-    return NODE_TYPE_VAR_TYPE;
-  }
-};
-
-class tl_tree_var_num : public tl_tree {
- public:
-  int var_num;
-  int diff;
-
-  tl_tree_var_num(std::int32_t flags, int var_num, int diff) : tl_tree(flags), var_num(var_num), diff(diff) {
-  }
-
-  virtual int get_type() const {
-    return NODE_TYPE_VAR_NUM;
-  }
-};
-
-class tl_tree_array : public tl_tree {
- public:
-  tl_tree *multiplicity;
-  std::vector<arg> args;
-
-  tl_tree_array(std::int32_t flags, tl_tree *multiplicity, const std::vector<arg> &a)
-      : tl_tree(flags), multiplicity(multiplicity), args(a) {
-  }
-
-  virtual int get_type() const {
-    return NODE_TYPE_ARRAY;
-  }
-};
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_file_outputer.cpp b/third-party/td/td/tdtl/td/tl/tl_file_outputer.cpp
deleted file mode 100644
index 30d06a7cfa..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_file_outputer.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_file_outputer.h"
-
-#include <cassert>
-
-namespace td {
-namespace tl {
-
-void tl_file_outputer::append(const std::string &str) {
-  assert(f != NULL);
-  std::fprintf(f, "%s", str.c_str());
-}
-
-tl_file_outputer::tl_file_outputer() : f(NULL) {
-}
-
-void tl_file_outputer::close() {
-  if (f) {
-    std::fclose(f);
-  }
-}
-
-bool tl_file_outputer::open(const std::string &file_name) {
-  close();
-
-  f = std::fopen(file_name.c_str(), "w");
-
-  return (f != NULL);
-}
-
-tl_file_outputer::~tl_file_outputer() {
-  close();
-}
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_file_outputer.h b/third-party/td/td/tdtl/td/tl/tl_file_outputer.h
deleted file mode 100644
index 9500901994..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_file_outputer.h
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_outputer.h"
-
-#include <cstdio>
-#include <string>
-
-namespace td {
-namespace tl {
-
-class tl_file_outputer : public tl_outputer {
-  FILE *f;
-
-  void close();
-
- public:
-  tl_file_outputer();
-
-  bool open(const std::string &file_name);
-
-  virtual void append(const std::string &str);
-
-  virtual ~tl_file_outputer();
-};
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_file_utils.cpp b/third-party/td/td/tdtl/td/tl/tl_file_utils.cpp
deleted file mode 100644
index 9cfb009003..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_file_utils.cpp
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_file_utils.h"
-
-#include <cstdio>
-#include <cstdlib>
-
-namespace td {
-namespace tl {
-
-std::string get_file_contents(const std::string &file_name) {
-  FILE *f = std::fopen(file_name.c_str(), "rb");
-  if (f == NULL) {
-    return std::string();
-  }
-
-  int fseek_res = std::fseek(f, 0, SEEK_END);
-  if (fseek_res != 0) {
-    std::fprintf(stderr, "Can't seek to the end of the file \"%s\"", file_name.c_str());
-    std::abort();
-  }
-  long size_long = std::ftell(f);
-  if (size_long < 0 || size_long >= (1 << 25)) {
-    std::fprintf(stderr, "Wrong file \"%s\" has wrong size = %ld", file_name.c_str(), size_long);
-    std::abort();
-  }
-  std::size_t size = static_cast<std::size_t>(size_long);
-
-  std::string result(size, ' ');
-  if (size != 0) {
-    std::rewind(f);
-    std::size_t fread_res = std::fread(&result[0], size, 1, f);
-    if (fread_res != 1) {
-      std::fprintf(stderr, "Can't read file \"%s\"", file_name.c_str());
-      std::abort();
-    }
-  }
-  std::fclose(f);
-
-  return result;
-}
-
-bool put_file_contents(const std::string &file_name, const std::string &contents, bool compare_documentation) {
-  std::string old_file_contents = get_file_contents(file_name);
-  if (!compare_documentation) {
-    old_file_contents = remove_documentation(old_file_contents);
-  }
-
-  if (old_file_contents == contents) {
-    return true;
-  }
-
-  std::fprintf(stderr, "Write file %s\n", file_name.c_str());
-
-  FILE *f = std::fopen(file_name.c_str(), "wb");
-  if (f == NULL) {
-    std::fprintf(stderr, "Can't open file \"%s\"\n", file_name.c_str());
-    return false;
-  }
-
-  std::size_t fwrite_res = std::fwrite(contents.c_str(), contents.size(), 1, f);
-  if (fwrite_res != 1) {
-    std::fclose(f);
-    return false;
-  }
-  if (std::fclose(f) != 0) {
-    return false;
-  }
-  return true;
-}
-
-std::string remove_documentation(const std::string &str) {
-  std::size_t line_begin = 0;
-  std::string result;
-  bool inside_documentation = false;
-  while (line_begin < str.size()) {
-    std::size_t line_end = str.find('\n', line_begin);
-    if (line_end == std::string::npos) {
-      line_end = str.size() - 1;
-    }
-    std::string line = str.substr(line_begin, line_end - line_begin + 1);
-    line_begin = line_end + 1;
-
-    std::size_t pos = line.find_first_not_of(' ');
-    if (pos != std::string::npos && ((line[pos] == '/' && line[pos + 1] == '/' && line[pos + 2] == '/') ||
-                                     (line[pos] == '/' && line[pos + 1] == '*' && line[pos + 2] == '*') ||
-                                     (inside_documentation && line[pos] == '*'))) {
-      inside_documentation = !(line[pos] == '/' && line[pos + 1] == '/' && line[pos + 2] == '/') &&
-                             !(line[pos] == '*' && line[pos + 1] == '/');
-      continue;
-    }
-
-    inside_documentation = false;
-    result += line;
-  }
-  return result;
-}
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_file_utils.h b/third-party/td/td/tdtl/td/tl/tl_file_utils.h
deleted file mode 100644
index 4cd6b925ac..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_file_utils.h
+++ /dev/null
@@ -1,21 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <string>
-
-namespace td {
-namespace tl {
-
-std::string get_file_contents(const std::string &file_name);
-
-bool put_file_contents(const std::string &file_name, const std::string &contents, bool compare_documentation);
-
-std::string remove_documentation(const std::string &str);
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_generate.cpp b/third-party/td/td/tdtl/td/tl/tl_generate.cpp
deleted file mode 100644
index 20113857e6..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_generate.cpp
+++ /dev/null
@@ -1,1017 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_generate.h"
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_core.h"
-#include "td/tl/tl_file_utils.h"
-#include "td/tl/tl_outputer.h"
-#include "td/tl/tl_string_outputer.h"
-#include "td/tl/tl_writer.h"
-
-#include <cassert>
-#include <cstdint>
-#include <cstdio>
-#include <cstdlib>
-#include <map>
-#include <set>
-#include <string>
-#include <vector>
-
-namespace td {
-namespace tl {
-
-static bool is_reachable_for_parser(int parser_type, const std::string &name,
-                                    const std::set<std::string> &request_types,
-                                    const std::set<std::string> &result_types, const TL_writer &w) {
-  TL_writer::Mode mode = w.get_parser_mode(parser_type);
-  if (mode == TL_writer::Client) {
-    return result_types.count(name) > 0;
-  }
-  if (mode == TL_writer::Server) {
-    return request_types.count(name) > 0;
-  }
-  return true;
-}
-
-static bool is_reachable_for_storer(int storer_type, const std::string &name,
-                                    const std::set<std::string> &request_types,
-                                    const std::set<std::string> &result_types, const TL_writer &w) {
-  TL_writer::Mode mode = w.get_storer_mode(storer_type);
-  if (mode == TL_writer::Client) {
-    return request_types.count(name) > 0;
-  }
-  if (mode == TL_writer::Server) {
-    return result_types.count(name) > 0;
-  }
-  return true;
-}
-
-static void get_children_types(const tl_tree *tree, const TL_writer &w, std::map<std::string, bool> &children_types) {
-  if (tree->get_type() != NODE_TYPE_TYPE) {
-    return;
-  }
-  const tl_tree_type *tree_type = static_cast<const tl_tree_type *>(tree);
-  for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-    get_children_types(tree_type->children[i], w, children_types);
-  }
-
-  const tl_type *t = tree_type->type;
-  if (t->constructors_num == 0 || w.is_built_in_simple_type(t->name) || w.is_built_in_complex_type(t->name) ||
-      (t->flags & FLAG_COMPLEX)) {  // built-in or complex types
-    return;
-  }
-
-  assert(t->flags == 0);
-
-  if (t->simple_constructors != 1) {
-    children_types.emplace(w.gen_main_class_name(t), true);
-  } else {
-    for (std::size_t i = 0; i < t->constructors_num; i++) {
-      if (w.is_combinator_supported(t->constructors[i])) {
-        children_types.emplace(w.gen_class_name(t->constructors[i]->name), false);
-      }
-    }
-  }
-}
-
-static std::map<std::string, bool> get_children_types(const tl_combinator *t, const TL_writer &w) {
-  std::map<std::string, bool> children_types;
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    get_children_types(t->args[i].type, w, children_types);
-  }
-  get_children_types(t->result, w, children_types);
-  return children_types;
-}
-
-static std::map<std::string, bool> get_children_types(const tl_type *t, const TL_writer &w) {
-  std::map<std::string, bool> children_types;
-  for (std::size_t i = 0; i < t->constructors_num; i++) {
-    if (w.is_combinator_supported(t->constructors[i])) {
-      for (std::size_t j = 0; j < t->constructors[i]->args.size(); j++) {
-        get_children_types(t->constructors[i]->args[j].type, w, children_types);
-      }
-    }
-  }
-  return children_types;
-}
-
-static void write_forward_declarations(tl_outputer &out, const std::map<std::string, bool> &children_types,
-                                       const TL_writer &w) {
-  for (std::map<std::string, bool>::const_iterator it = children_types.begin(); it != children_types.end(); ++it) {
-    out.append(w.gen_forward_class_declaration(it->first, it->second));
-  }
-}
-
-static void write_class_constructor(tl_outputer &out, const tl_combinator *t, const std::string &class_name,
-                                    bool is_default, const TL_writer &w) {
-  //  std::fprintf(stderr, "Gen constructor %s\n", class_name.c_str());
-  int field_count = 0;
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    field_count += !w.gen_constructor_parameter(field_count, class_name, t->args[i], is_default).empty();
-  }
-
-  out.append(w.gen_constructor_begin(field_count, class_name, is_default));
-  int field_num = 0;
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    std::string parameter_init = w.gen_constructor_parameter(field_num, class_name, t->args[i], is_default);
-    if (!parameter_init.empty()) {
-      out.append(parameter_init);
-      field_num++;
-    }
-  }
-  assert(field_num == field_count);
-
-  field_num = 0;
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    std::string field_init = w.gen_constructor_field_init(field_num, class_name, t->args[i], is_default);
-    if (!field_init.empty()) {
-      out.append(field_init);
-      field_num++;
-    }
-  }
-
-  out.append(w.gen_constructor_end(t, field_num, is_default));
-}
-
-static void write_function_fetch(tl_outputer &out, const std::string &parser_name, const tl_combinator *t,
-                                 const std::string &class_name, const std::set<std::string> &request_types,
-                                 const std::set<std::string> &result_types, const TL_writer &w) {
-  //  std::fprintf(stderr, "Write function fetch %s\n", class_name.c_str());
-  int parser_type = w.get_parser_type(t, parser_name);
-
-  if (!is_reachable_for_parser(parser_type, t->name, request_types, result_types, w)) {
-    return;
-  }
-
-  std::vector<var_description> vars(t->var_count);
-  out.append(w.gen_fetch_function_begin(parser_name, class_name, class_name, 0, static_cast<int>(t->args.size()), vars,
-                                        parser_type));
-  out.append(w.gen_vars(t, NULL, vars));
-  int field_num = 0;
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    std::string field_fetch = w.gen_field_fetch(field_num, t->args[i], vars, false, parser_type);
-    if (!field_fetch.empty()) {
-      out.append(field_fetch);
-      field_num++;
-    }
-  }
-
-  out.append(w.gen_fetch_function_end(false, field_num, vars, parser_type));
-}
-
-static void write_function_store(tl_outputer &out, const std::string &storer_name, const tl_combinator *t,
-                                 const std::string &class_name, std::vector<var_description> &vars,
-                                 const std::set<std::string> &request_types, const std::set<std::string> &result_types,
-                                 const TL_writer &w) {
-  //  std::fprintf(stderr, "Write function store %s\n", class_name.c_str());
-  int storer_type = w.get_storer_type(t, storer_name);
-
-  if (!is_reachable_for_storer(storer_type, t->name, request_types, result_types, w)) {
-    return;
-  }
-
-  out.append(w.gen_store_function_begin(storer_name, class_name, 0, vars, storer_type));
-  out.append(w.gen_constructor_id_store(t->id, storer_type));
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    out.append(w.gen_field_store(t->args[i], t->args, vars, false, storer_type));
-  }
-
-  out.append(w.gen_store_function_end(vars, storer_type));
-}
-
-static void write_function_result_fetch(tl_outputer &out, const std::string &parser_name, const tl_combinator *t,
-                                        const std::string &class_name, const tl_tree *result,
-                                        const std::vector<var_description> &vars, const TL_writer &w) {
-  //  std::fprintf(stderr, "Write function result fetch %s\n", class_name.c_str());
-  int parser_type = w.get_parser_type(t, parser_name);
-
-  out.append(w.gen_fetch_function_result_begin(parser_name, class_name, result));
-
-  if (result->get_type() == NODE_TYPE_VAR_TYPE) {
-    const tl_tree_var_type *result_var_type = static_cast<const tl_tree_var_type *>(result);
-
-    for (std::size_t i = 0; i < t->args.size(); i++) {
-      const arg &a = t->args[i];
-
-      int arg_type = a.type->get_type();
-      if (arg_type == NODE_TYPE_VAR_TYPE) {
-        const tl_tree_var_type *tree_var_type = static_cast<const tl_tree_var_type *>(a.type);
-        assert(a.flags & FLAG_EXCL);
-        assert(tree_var_type->var_num >= 0);
-        if (tree_var_type->var_num == result_var_type->var_num) {
-          out.append(w.gen_var_type_fetch(a));
-        }
-      }
-    }
-  } else {
-    assert(result->get_type() == NODE_TYPE_TYPE);
-    const tl_tree_type *result_type = static_cast<const tl_tree_type *>(result);
-    out.append(w.gen_type_fetch("", result_type, vars, parser_type));
-  }
-
-  out.append(w.gen_fetch_function_result_end());
-
-  out.append(w.gen_fetch_function_result_any_begin(parser_name, class_name, false));
-  out.append(w.gen_fetch_function_result_any_end(false));
-}
-
-static void write_constructor_fetch(tl_outputer &out, const std::string &parser_name, const tl_combinator *t,
-                                    const std::string &class_name, const std::string &parent_class_name,
-                                    const tl_tree_type *result_type, bool is_flat,
-                                    const std::set<std::string> &request_types,
-                                    const std::set<std::string> &result_types, const TL_writer &w) {
-  int parser_type = w.get_parser_type(t, parser_name);
-
-  if (!is_reachable_for_parser(parser_type, t->name, request_types, result_types, w)) {
-    return;
-  }
-
-  std::vector<var_description> vars(t->var_count);
-  out.append(w.gen_fetch_function_begin(parser_name, class_name, parent_class_name,
-                                        static_cast<int>(result_type->children.size()),
-                                        static_cast<int>(t->args.size()), vars, parser_type));
-  out.append(w.gen_vars(t, result_type, vars));
-  out.append(w.gen_uni(result_type, vars, true));
-  int field_num = 0;
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    std::string field_fetch = w.gen_field_fetch(field_num, t->args[i], vars, is_flat, parser_type);
-    if (!field_fetch.empty()) {
-      out.append(field_fetch);
-      field_num++;
-    }
-  }
-
-  out.append(w.gen_fetch_function_end(class_name != parent_class_name, field_num, vars, parser_type));
-}
-
-static void write_constructor_store(tl_outputer &out, const std::string &storer_name, const tl_combinator *t,
-                                    const std::string &class_name, const tl_tree_type *result_type, bool is_flat,
-                                    const std::set<std::string> &request_types,
-                                    const std::set<std::string> &result_types, const TL_writer &w) {
-  std::vector<var_description> vars(t->var_count);
-  int storer_type = w.get_storer_type(t, storer_name);
-
-  if (!is_reachable_for_storer(storer_type, t->name, request_types, result_types, w)) {
-    return;
-  }
-
-  out.append(w.gen_store_function_begin(storer_name, class_name, static_cast<int>(result_type->children.size()), vars,
-                                        storer_type));
-  out.append(w.gen_vars(t, result_type, vars));
-  out.append(w.gen_uni(result_type, vars, false));
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    //  std::fprintf(stderr, "%s: %s\n", result_type->type->name.c_str(), t->name.c_str());
-    out.append(w.gen_field_store(t->args[i], t->args, vars, is_flat, storer_type));
-  }
-
-  out.append(w.gen_store_function_end(vars, storer_type));
-}
-
-static int gen_field_definitions(tl_outputer &out, const tl_combinator *t, const std::string &class_name,
-                                 const TL_writer &w) {
-  int required_args = 0;
-
-  for (std::size_t i = 0; i < t->args.size(); i++) {
-    const arg &a = t->args[i];
-
-    assert(-1 <= a.var_num && a.var_num < t->var_count);
-
-    required_args += !(a.flags & FLAG_OPT_VAR);
-
-    if (a.flags & FLAG_OPT_VAR) {
-      //    continue;
-    }
-
-    std::string type_name = w.gen_field_type(a);
-    if (!type_name.empty()) {
-      out.append(w.gen_field_definition(class_name, type_name, w.gen_field_name(a.name)));
-    }
-  }
-
-  return required_args;
-}
-
-static void write_function(tl_outputer &out, const tl_combinator *t, const std::set<std::string> &request_types,
-                           const std::set<std::string> &result_types, const TL_writer &w) {
-  assert(w.is_combinator_supported(t));
-
-  write_forward_declarations(out, get_children_types(t, w), w);
-
-  std::string class_name = w.gen_class_name(t->name);
-
-  out.append(w.gen_class_begin(class_name, w.gen_base_function_class_name(), false, t->result));
-
-  int required_args = gen_field_definitions(out, t, class_name, w);
-  out.append(w.gen_flags_definitions(t, true));
-
-  std::vector<var_description> vars(t->var_count);
-  out.append(w.gen_function_vars(t, vars));
-
-  if (w.is_default_constructor_generated(t, false, true)) {
-    write_class_constructor(out, t, class_name, true, w);
-  }
-  if (required_args && w.is_full_constructor_generated(t, false, true)) {
-    write_class_constructor(out, t, class_name, false, w);
-  }
-
-  out.append(w.gen_get_id(class_name, t->id, false));
-
-  out.append(w.gen_function_result_type(t->result));
-
-  //  PARSER
-  std::vector<std::string> parsers = w.get_parsers();
-  for (std::size_t i = 0; i < parsers.size(); i++) {
-    write_function_fetch(out, parsers[i], t, class_name, request_types, result_types, w);
-  }
-
-  //  STORER
-  std::vector<std::string> storers = w.get_storers();
-  for (std::size_t i = 0; i < storers.size(); i++) {
-    write_function_store(out, storers[i], t, class_name, vars, request_types, result_types, w);
-  }
-
-  //  PARSE RESULT
-  for (std::size_t i = 0; i < parsers.size(); i++) {
-    if (w.get_parser_mode(-1) == TL_writer::Server) {
-      continue;
-    }
-
-    write_function_result_fetch(out, parsers[i], t, class_name, t->result, vars, w);
-  }
-
-  //  ADDITIONAL FUNCTIONS
-  std::vector<std::string> additional_functions = w.get_additional_functions();
-  for (std::size_t i = 0; i < additional_functions.size(); i++) {
-    out.append(w.gen_additional_function(additional_functions[i], t, true));
-  }
-
-  out.append(w.gen_class_end());
-}
-
-static void write_constructor(tl_outputer &out, const tl_combinator *t, const std::string &base_class,
-                              const std::string &parent_class, bool is_proxy,
-                              const std::set<std::string> &request_types, const std::set<std::string> &result_types,
-                              const TL_writer &w) {
-  assert(w.is_combinator_supported(t));
-
-  std::string class_name = w.gen_class_name(t->name);
-
-  out.append(w.gen_class_begin(class_name, base_class, is_proxy, t->result));
-  int required_args = gen_field_definitions(out, t, class_name, w);
-
-  bool can_be_parsed = false;
-  bool is_can_be_parsed_inited = false;
-  std::vector<std::string> parsers = w.get_parsers();
-  for (std::size_t i = 0; i < parsers.size(); i++) {
-    int parser_type = w.get_parser_type(t, parsers[i]);
-    if (w.get_parser_mode(parser_type) != TL_writer::All) {
-      can_be_parsed |= is_reachable_for_parser(parser_type, t->name, request_types, result_types, w);
-      is_can_be_parsed_inited = true;
-    }
-  }
-  if (!is_can_be_parsed_inited) {
-    can_be_parsed = true;
-  }
-
-  bool can_be_stored = false;
-  bool is_can_be_stored_inited = false;
-  std::vector<std::string> storers = w.get_storers();
-  for (std::size_t i = 0; i < storers.size(); i++) {
-    int storer_type = w.get_storer_type(t, storers[i]);
-    if (w.get_storer_mode(storer_type) != TL_writer::All) {
-      can_be_stored |= is_reachable_for_storer(storer_type, t->name, request_types, result_types, w);
-      is_can_be_stored_inited = true;
-    }
-  }
-  if (!is_can_be_stored_inited) {
-    can_be_stored = true;
-  }
-
-  out.append(w.gen_flags_definitions(t, can_be_stored));
-  if (w.is_default_constructor_generated(t, can_be_parsed, can_be_stored)) {
-    write_class_constructor(out, t, class_name, true, w);
-  }
-  if (required_args && w.is_full_constructor_generated(t, can_be_parsed, can_be_stored)) {
-    write_class_constructor(out, t, class_name, false, w);
-  }
-
-  out.append(w.gen_get_id(class_name, t->id, false));
-
-  //  PARSER
-  assert(t->result->get_type() == NODE_TYPE_TYPE);
-  const tl_tree_type *result_type = static_cast<const tl_tree_type *>(t->result);
-
-  for (std::size_t i = 0; i < parsers.size(); i++) {
-    write_constructor_fetch(out, parsers[i], t, class_name, parent_class, result_type,
-                            required_args == 1 && result_type->type->simple_constructors == 1, request_types,
-                            result_types, w);
-  }
-
-  //  STORER
-  for (std::size_t i = 0; i < storers.size(); i++) {
-    write_constructor_store(out, storers[i], t, class_name, result_type,
-                            required_args == 1 && result_type->type->simple_constructors == 1, request_types,
-                            result_types, w);
-  }
-
-  //  ADDITIONAL FUNCTIONS
-  std::vector<std::string> additional_functions = w.get_additional_functions();
-  for (std::size_t i = 0; i < additional_functions.size(); i++) {
-    out.append(w.gen_additional_function(additional_functions[i], t, false));
-  }
-
-  out.append(w.gen_class_end());
-}
-
-static void write_class(tl_outputer &out, const tl_type *t, const std::set<std::string> &request_types,
-                        const std::set<std::string> &result_types, const TL_writer &w) {
-  assert(t->constructors_num > 0);
-  assert(!w.is_built_in_simple_type(t->name));
-  assert(!w.is_built_in_complex_type(t->name));
-  assert(!(t->flags & FLAG_COMPLEX));
-
-  assert(t->arity >= 0);
-  assert(t->simple_constructors > 0);
-  assert(t->flags == 0);
-
-  const std::string base_class = w.gen_base_type_class_name(t->arity);
-  const std::string class_name = w.gen_class_name(t->name);
-
-  write_forward_declarations(out, get_children_types(t, w), w);
-
-  std::vector<var_description> empty_vars;
-  bool optimize_one_constructor = (t->simple_constructors == 1);
-  if (!optimize_one_constructor) {
-    out.append(w.gen_class_begin(class_name, base_class, true, nullptr));
-
-    out.append(w.gen_get_id(class_name, 0, true));
-
-    std::vector<std::string> parsers = w.get_parsers();
-    for (std::size_t i = 0; i < parsers.size(); i++) {
-      if (!is_reachable_for_parser(-1, t->name, request_types, result_types, w)) {
-        continue;
-      }
-
-      out.append(w.gen_fetch_function_begin(parsers[i], class_name, class_name, t->arity, -1, empty_vars, -1));
-      out.append(w.gen_fetch_switch_begin());
-      for (std::size_t j = 0; j < t->constructors_num; j++) {
-        if (w.is_combinator_supported(t->constructors[j])) {
-          out.append(w.gen_fetch_switch_case(t->constructors[j], t->arity));
-        }
-      }
-
-      out.append(w.gen_fetch_switch_end());
-      out.append(w.gen_fetch_function_end(false, -1, empty_vars, -1));
-    }
-
-    std::vector<std::string> storers = w.get_storers();
-    for (std::size_t i = 0; i < storers.size(); i++) {
-      if (!is_reachable_for_storer(-1, t->name, request_types, result_types, w)) {
-        continue;
-      }
-
-      out.append(w.gen_store_function_begin(storers[i], class_name, t->arity, empty_vars, -1));
-      out.append(w.gen_store_function_end(empty_vars, -1));
-    }
-
-    std::vector<std::string> additional_functions = w.get_additional_functions();
-    for (std::size_t i = 0; i < additional_functions.size(); i++) {
-      out.append(w.gen_additional_proxy_function_begin(additional_functions[i], t, class_name, t->arity, false));
-      for (std::size_t j = 0; j < t->constructors_num; j++) {
-        if (w.is_combinator_supported(t->constructors[j])) {
-          out.append(
-              w.gen_additional_proxy_function_case(additional_functions[i], t, t->constructors[j], t->arity, false));
-        }
-      }
-
-      out.append(w.gen_additional_proxy_function_end(additional_functions[i], t, false));
-    }
-
-    out.append(w.gen_class_end());
-  }
-
-  int written_constructors = 0;
-  for (std::size_t i = 0; i < t->constructors_num; i++) {
-    if (w.is_combinator_supported(t->constructors[i])) {
-      if (optimize_one_constructor) {
-        write_constructor(out, t->constructors[i], base_class, w.gen_class_name(t->constructors[i]->name), false,
-                          request_types, result_types, w);
-        out.append(w.gen_class_alias(w.gen_class_name(t->constructors[i]->name), class_name));
-      } else {
-        write_constructor(out, t->constructors[i], class_name, class_name, false, request_types, result_types, w);
-      }
-      written_constructors++;
-    } else {
-      std::fprintf(stderr, "Skip complex constructor %s of %s\n", t->constructors[i]->name.c_str(), t->name.c_str());
-    }
-  }
-  (void)written_constructors;
-  assert(written_constructors == t->simple_constructors);
-}
-
-static void dfs_type(const tl_type *t, std::set<std::string> &found, const TL_writer &w);
-
-static void dfs_tree(const tl_tree *t, std::set<std::string> &found, const TL_writer &w) {
-  int type = t->get_type();
-
-  if (type == NODE_TYPE_ARRAY) {
-    const tl_tree_array *arr = static_cast<const tl_tree_array *>(t);
-    for (std::size_t i = 0; i < arr->args.size(); i++) {
-      dfs_tree(arr->args[i].type, found, w);
-    }
-  } else if (type == NODE_TYPE_TYPE) {
-    const tl_tree_type *tree_type = static_cast<const tl_tree_type *>(t);
-    dfs_type(tree_type->type, found, w);
-    for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-      dfs_tree(tree_type->children[i], found, w);
-    }
-  } else {
-    assert(type == NODE_TYPE_VAR_TYPE);
-  }
-}
-
-static void dfs_combinator(const tl_combinator *constructor, std::set<std::string> &found, const TL_writer &w) {
-  if (!w.is_combinator_supported(constructor)) {
-    return;
-  }
-
-  if (!found.insert(constructor->name).second) {
-    return;
-  }
-
-  for (std::size_t i = 0; i < constructor->args.size(); i++) {
-    dfs_tree(constructor->args[i].type, found, w);
-  }
-}
-
-static void dfs_type(const tl_type *t, std::set<std::string> &found, const TL_writer &w) {
-  if (!found.insert(t->name).second) {
-    return;
-  }
-
-  if (t->constructors_num == 0 || w.is_built_in_simple_type(t->name) || w.is_built_in_complex_type(t->name)) {
-    return;
-  }
-
-  assert(!(t->flags & FLAG_COMPLEX));
-
-  for (std::size_t i = 0; i < t->constructors_num; i++) {
-    dfs_combinator(t->constructors[i], found, w);
-  }
-}
-
-static void find_complex_types(const tl_config &config, const TL_writer &w) {
-  for (std::size_t type = 0; type < config.get_type_count(); type++) {
-    tl_type *t = config.get_type_by_num(type);
-    assert(t->constructors_num == t->constructors.size());
-    if (t->constructors_num == 0) {  // built-in dummy types
-      if (t->name == "Type") {
-        assert(t->id == ID_VAR_TYPE);
-        t->flags |= FLAG_COMPLEX;
-      }
-      continue;
-    }
-
-    for (std::size_t j = 0; j < t->constructors_num; j++) {
-      tl_combinator *constructor = t->constructors[j];
-      assert(constructor->type_id == t->id);
-      assert(constructor->result->get_type() == NODE_TYPE_TYPE);
-      assert(static_cast<const tl_tree_type *>(constructor->result)->type == t);
-      assert(static_cast<const tl_tree_type *>(constructor->result)->children.size() ==
-             static_cast<std::size_t>(t->arity));
-      assert(static_cast<const tl_tree_type *>(constructor->result)->flags == (t->arity > 0 ? 0 : FLAG_NOVAR));
-
-      for (std::size_t k = 0; k < constructor->args.size(); k++) {
-        const arg &a = constructor->args[k];
-
-        assert(-1 <= a.var_num && a.var_num <= constructor->var_count);
-
-        int arg_type = a.type->get_type();
-        assert(arg_type == NODE_TYPE_TYPE || arg_type == NODE_TYPE_VAR_TYPE || arg_type == NODE_TYPE_ARRAY);
-        if (a.var_num >= 0) {
-          assert(arg_type == NODE_TYPE_TYPE);
-          assert(static_cast<const tl_tree_type *>(a.type)->type->id == ID_VAR_NUM ||
-                 static_cast<const tl_tree_type *>(a.type)->type->id == ID_VAR_TYPE);
-        }
-
-        if (arg_type == NODE_TYPE_ARRAY) {
-          const tl_tree_array *arr = static_cast<const tl_tree_array *>(a.type);
-          assert(arr->multiplicity->get_type() == NODE_TYPE_NAT_CONST ||
-                 arr->multiplicity->get_type() == NODE_TYPE_VAR_NUM);
-          for (std::size_t l = 0; l < arr->args.size(); l++) {
-            const arg &b = arr->args[l];
-            int b_arg_type = b.type->get_type();
-            if (b_arg_type == NODE_TYPE_VAR_TYPE || b_arg_type == NODE_TYPE_ARRAY || b.var_num != -1 ||
-                b.exist_var_num != -1) {
-              if (!w.is_built_in_complex_type(t->name)) {
-                t->flags |= FLAG_COMPLEX;
-              }
-            } else {
-              assert(b_arg_type == NODE_TYPE_TYPE);
-            }
-            assert(b.flags == FLAG_NOVAR || b.flags == 0);
-          }
-        }
-      }
-    }
-
-    for (int i = 0; i < t->arity; i++) {
-      int main_type = static_cast<const tl_tree_type *>(t->constructors[0]->result)->children[i]->get_type();
-      for (std::size_t j = 1; j < t->constructors_num; j++) {
-        assert(static_cast<const tl_tree_type *>(t->constructors[j]->result)->children[i]->get_type() == main_type);
-      }
-      assert(main_type == NODE_TYPE_VAR_TYPE || main_type == NODE_TYPE_VAR_NUM);
-      if (main_type == NODE_TYPE_VAR_TYPE) {
-        if (!w.is_built_in_complex_type(t->name)) {
-          t->flags |= FLAG_COMPLEX;
-        }
-      }
-    }
-  }
-
-  while (true) {
-    bool found_complex = false;
-    for (std::size_t type = 0; type < config.get_type_count(); type++) {
-      tl_type *t = config.get_type_by_num(type);
-      if (t->constructors_num == 0 || w.is_built_in_complex_type(t->name)) {  // built-in dummy or complex types
-        continue;
-      }
-      if (t->flags & FLAG_COMPLEX) {  // already complex
-        continue;
-      }
-
-      t->simple_constructors = 0;
-      for (std::size_t i = 0; i < t->constructors_num; i++) {
-        t->simple_constructors += w.is_combinator_supported(t->constructors[i]);
-      }
-      if (t->simple_constructors == 0) {
-        t->flags |= FLAG_COMPLEX;
-        found_complex = true;
-        //  std::fprintf(stderr, "Found complex %s\n", t->name.c_str());
-      }
-    }
-    if (!found_complex) {
-      break;
-    }
-  }
-}
-
-static void write_base_object_classes(const tl_config &config, tl_outputer &out,
-                                      const std::set<std::string> &request_types,
-                                      const std::set<std::string> &result_types, const TL_writer &w) {
-  std::vector<var_description> empty_vars;
-  for (int i = 0; i <= w.get_max_arity(); i++) {
-    out.append(w.gen_class_begin(w.gen_base_type_class_name(i), w.gen_base_tl_class_name(), true, nullptr));
-
-    out.append(w.gen_get_id(w.gen_base_type_class_name(i), 0, true));
-
-    std::vector<std::string> parsers = w.get_parsers();
-    for (std::size_t j = 0; j < parsers.size(); j++) {
-      int case_count = 0;
-      for (std::size_t type = 0; type < config.get_type_count(); type++) {
-        tl_type *t = config.get_type_by_num(type);
-        if (t->constructors_num == 0 || w.is_built_in_simple_type(t->name) || w.is_built_in_complex_type(t->name) ||
-            (t->flags & FLAG_COMPLEX)) {  // built-in or complex types
-          continue;
-        }
-        if (t->arity != i) {  // additional condition
-          continue;
-        }
-
-        for (std::size_t k = 0; k < t->constructors_num; k++) {
-          if (w.is_combinator_supported(t->constructors[k]) &&
-              is_reachable_for_parser(-1, t->constructors[k]->name, request_types, result_types, w)) {
-            case_count++;
-          }
-        }
-      }
-
-      if (case_count == 0) {
-        continue;
-      }
-
-      out.append(w.gen_fetch_function_begin(parsers[j], w.gen_base_type_class_name(i), w.gen_base_type_class_name(i), i,
-                                            -1, empty_vars, -1));
-      out.append(w.gen_fetch_switch_begin());
-      for (std::size_t type = 0; type < config.get_type_count(); type++) {
-        tl_type *t = config.get_type_by_num(type);
-        if (t->constructors_num == 0 || w.is_built_in_simple_type(t->name) || w.is_built_in_complex_type(t->name) ||
-            (t->flags & FLAG_COMPLEX)) {  // built-in or complex types
-          continue;
-        }
-        if (t->arity != i) {  // additional condition
-          continue;
-        }
-
-        for (std::size_t k = 0; k < t->constructors_num; k++) {
-          if (w.is_combinator_supported(t->constructors[k]) &&
-              is_reachable_for_parser(-1, t->constructors[k]->name, request_types, result_types, w)) {
-            out.append(w.gen_fetch_switch_case(t->constructors[k], i));
-          }
-        }
-      }
-      out.append(w.gen_fetch_switch_end());
-      out.append(w.gen_fetch_function_end(false, -1, empty_vars, -1));
-    }
-
-    std::vector<std::string> additional_functions = w.get_additional_functions();
-    for (std::size_t j = 0; j < additional_functions.size(); j++) {
-      out.append(w.gen_additional_proxy_function_begin(additional_functions[j], NULL, w.gen_base_type_class_name(i), i,
-                                                       false));
-      for (std::size_t type = 0; type < config.get_type_count(); type++) {
-        tl_type *t = config.get_type_by_num(type);
-        if (t->constructors_num == 0 || w.is_built_in_simple_type(t->name) || w.is_built_in_complex_type(t->name) ||
-            (t->flags & FLAG_COMPLEX)) {  // built-in or complex types
-          continue;
-        }
-        if (t->arity != i) {  // additional condition
-          continue;
-        }
-
-        int function_type = w.get_additional_function_type(additional_functions[j]);
-        if ((function_type & 1) && t->simple_constructors != 1) {
-          out.append(w.gen_additional_proxy_function_case(additional_functions[j], NULL, w.gen_class_name(t->name), i));
-        }
-        if ((function_type & 2) || ((function_type & 1) && t->simple_constructors == 1)) {
-          for (std::size_t k = 0; k < t->constructors_num; k++) {
-            if (w.is_combinator_supported(t->constructors[k])) {
-              out.append(
-                  w.gen_additional_proxy_function_case(additional_functions[j], NULL, t->constructors[k], i, false));
-            }
-          }
-        }
-      }
-
-      out.append(w.gen_additional_proxy_function_end(additional_functions[j], NULL, false));
-    }
-
-    std::vector<std::string> storers = w.get_storers();
-    for (std::size_t j = 0; j < storers.size(); j++) {
-      out.append(w.gen_store_function_begin(storers[j], w.gen_base_type_class_name(i), i, empty_vars, -1));
-      out.append(w.gen_store_function_end(empty_vars, -1));
-    }
-
-    out.append(w.gen_class_end());
-  }
-}
-
-static void write_base_function_class(const tl_config &config, tl_outputer &out,
-                                      const std::set<std::string> &request_types,
-                                      const std::set<std::string> &result_types, const TL_writer &w) {
-  out.append(w.gen_class_begin(w.gen_base_function_class_name(), w.gen_base_tl_class_name(), true, nullptr));
-
-  out.append(w.gen_get_id(w.gen_base_function_class_name(), 0, true));
-
-  std::vector<var_description> empty_vars;
-  std::vector<std::string> parsers = w.get_parsers();
-  for (std::size_t j = 0; j < parsers.size(); j++) {
-    if (w.get_parser_mode(-1) == TL_writer::Client) {
-      continue;
-    }
-
-    out.append(w.gen_fetch_function_begin(parsers[j], w.gen_base_function_class_name(),
-                                          w.gen_base_function_class_name(), 0, -1, empty_vars, -1));
-    out.append(w.gen_fetch_switch_begin());
-    for (std::size_t function = 0; function < config.get_function_count(); function++) {
-      tl_combinator *t = config.get_function_by_num(function);
-
-      if (w.is_combinator_supported(t)) {
-        out.append(w.gen_fetch_switch_case(t, 0));
-      }
-    }
-    out.append(w.gen_fetch_switch_end());
-    out.append(w.gen_fetch_function_end(false, -1, empty_vars, -1));
-  }
-
-  std::vector<std::string> storers = w.get_storers();
-  for (std::size_t j = 0; j < storers.size(); j++) {
-    if (w.get_storer_mode(-1) == TL_writer::Server) {
-      continue;
-    }
-
-    out.append(w.gen_store_function_begin(storers[j], w.gen_base_function_class_name(), 0, empty_vars, -1));
-    out.append(w.gen_store_function_end(empty_vars, -1));
-  }
-
-  for (std::size_t j = 0; j < parsers.size(); j++) {
-    if (w.get_parser_mode(-1) == TL_writer::Server) {
-      continue;
-    }
-
-    out.append(w.gen_fetch_function_result_any_begin(parsers[j], w.gen_base_function_class_name(), true));
-    out.append(w.gen_fetch_function_result_any_end(true));
-  }
-
-  std::vector<std::string> additional_functions = w.get_additional_functions();
-  for (std::size_t j = 0; j < additional_functions.size(); j++) {
-    out.append(w.gen_additional_proxy_function_begin(additional_functions[j], NULL, w.gen_base_function_class_name(), 0,
-                                                     true));
-    for (std::size_t function = 0; function < config.get_function_count(); function++) {
-      tl_combinator *t = config.get_function_by_num(function);
-
-      if (w.is_combinator_supported(t)) {
-        out.append(w.gen_additional_proxy_function_case(additional_functions[j], NULL, t, 0, true));
-      }
-    }
-
-    out.append(w.gen_additional_proxy_function_end(additional_functions[j], NULL, true));
-  }
-
-  out.append(w.gen_class_end());
-}
-
-void write_tl(const tl_config &config, tl_outputer &out, const TL_writer &w) {
-  find_complex_types(config, w);
-
-  out.append(w.gen_output_begin(std::string()));
-  out.append(w.gen_output_begin_once());
-
-  std::set<std::string> request_types;
-  std::set<std::string> result_types;
-  for (std::size_t function = 0; function < config.get_function_count(); function++) {
-    const tl_combinator *t = config.get_function_by_num(function);
-    dfs_combinator(t, request_types, w);
-    dfs_tree(t->result, result_types, w);
-  }
-
-  write_base_object_classes(config, out, request_types, result_types, w);
-
-  write_base_function_class(config, out, request_types, result_types, w);
-
-  for (std::size_t type = 0; type < config.get_type_count(); type++) {
-    tl_type *t = config.get_type_by_num(type);
-    if (t->constructors_num == 0 || w.is_built_in_simple_type(t->name) ||
-        w.is_built_in_complex_type(t->name)) {  // built-in dummy or complex types
-      continue;
-    }
-
-    if (t->flags & FLAG_COMPLEX) {
-      std::fprintf(stderr, "Can't generate class %s\n", t->name.c_str());
-      continue;
-    }
-
-    write_class(out, t, request_types, result_types, w);
-  }
-
-  for (std::size_t function = 0; function < config.get_function_count(); function++) {
-    tl_combinator *t = config.get_function_by_num(function);
-    if (!w.is_combinator_supported(t)) {
-      // std::fprintf(stderr, "Function %s is too hard to store\n", t->name.c_str());
-      continue;
-    }
-
-    write_function(out, t, request_types, result_types, w);
-  }
-  out.append(w.gen_output_end());
-
-  for (std::size_t type = 0; type < config.get_type_count(); type++) {
-    tl_type *t = config.get_type_by_num(type);
-    if (t->flags & FLAG_COMPLEX) {
-      t->flags &= ~FLAG_COMPLEX;  // remove temporary flag
-    }
-  }
-}
-
-tl_config read_tl_config_from_file(const std::string &file_name) {
-  std::string config = get_file_contents(file_name);
-  if (config.empty()) {
-    std::fprintf(stderr, "Config file %s is empty\n", file_name.c_str());
-    std::abort();
-  }
-  if (config.size() % sizeof(std::int32_t) != 0) {
-    std::fprintf(stderr, "Config size = %d is not multiple of %d\n", static_cast<int>(config.size()),
-                 static_cast<int>(sizeof(std::int32_t)));
-    std::abort();
-  }
-
-  tl_config_parser parser(config.c_str(), config.size());
-  return parser.parse_config();
-}
-
-bool write_tl_to_file(const tl_config &config, const std::string &file_name, const TL_writer &w) {
-  tl_string_outputer out;
-  write_tl(config, out, w);
-  return put_file_contents(file_name, out.get_result(), w.is_documentation_generated());
-}
-
-static std::string get_additional_imports(const std::map<std::string, bool> &types, const std::string base_class_name,
-                                          const std::string &file_name_prefix, const std::string &file_name_suffix,
-                                          const TL_writer &w) {
-  std::string result =
-      w.gen_import_declaration(file_name_prefix + "_" + base_class_name + w.gen_package_suffix(), false);
-  if (w.gen_package_suffix() != file_name_suffix) {
-    for (std::map<std::string, bool>::const_iterator it = types.begin(); it != types.end(); ++it) {
-      std::string package_name = file_name_prefix + "_" + it->first + w.gen_package_suffix();
-      result += w.gen_import_declaration(package_name, false);
-    }
-  }
-  result += "\n";
-  return result;
-}
-
-bool write_tl_to_multiple_files(const tl_config &config, const std::string &file_name_prefix,
-                                const std::string &file_name_suffix, const TL_writer &w) {
-  find_complex_types(config, w);
-
-  std::map<std::string, tl_string_outputer> outs;
-
-  tl_string_outputer *out = &outs["common"];
-  out->append(w.gen_output_begin(std::string()));
-  out->append(w.gen_output_begin_once());
-  out->append(w.gen_output_end());
-
-  std::set<std::string> request_types;
-  std::set<std::string> result_types;
-  for (std::size_t function = 0; function < config.get_function_count(); function++) {
-    const tl_combinator *t = config.get_function_by_num(function);
-    dfs_combinator(t, request_types, w);
-    dfs_tree(t->result, result_types, w);
-  }
-
-  std::map<std::string, bool> object_types;
-  for (std::size_t type = 0; type < config.get_type_count(); type++) {
-    tl_type *t = config.get_type_by_num(type);
-    if (t->constructors_num == 0 || w.is_built_in_simple_type(t->name) ||
-        w.is_built_in_complex_type(t->name)) {  // built-in dummy or complex types
-      continue;
-    }
-
-    if (t->flags & FLAG_COMPLEX) {
-      std::fprintf(stderr, "Can't generate class %s\n", t->name.c_str());
-      continue;
-    }
-
-    object_types[w.gen_main_class_name(t)] = (t->simple_constructors != 1);
-    out = &outs[w.gen_main_class_name(t)];
-    auto additional_imports =
-        get_additional_imports(get_children_types(t, w), "Object", file_name_prefix, file_name_suffix, w);
-    out->append(w.gen_output_begin(additional_imports));
-    write_class(*out, t, request_types, result_types, w);
-    out->append(w.gen_output_end());
-  }
-
-  std::map<std::string, bool> function_types;
-  for (std::size_t function = 0; function < config.get_function_count(); function++) {
-    tl_combinator *t = config.get_function_by_num(function);
-    if (!w.is_combinator_supported(t)) {
-      // std::fprintf(stderr, "Function %s is too hard to store\n", t->name.c_str());
-      continue;
-    }
-
-    function_types[w.gen_class_name(t->name)] = false;
-    out = &outs[w.gen_class_name(t->name)];
-    auto additional_imports =
-        get_additional_imports(get_children_types(t, w), "Function", file_name_prefix, file_name_suffix, w);
-    out->append(w.gen_output_begin(additional_imports));
-    write_function(*out, t, request_types, result_types, w);
-    out->append(w.gen_output_end());
-  }
-
-  for (std::size_t type = 0; type < config.get_type_count(); type++) {
-    tl_type *t = config.get_type_by_num(type);
-    if (t->flags & FLAG_COMPLEX) {
-      t->flags &= ~FLAG_COMPLEX;  // remove temporary flag
-    }
-  }
-
-  out = &outs["Object"];
-  out->append(
-      w.gen_output_begin(get_additional_imports(object_types, "common", file_name_prefix, file_name_suffix, w)));
-  write_base_object_classes(config, *out, request_types, result_types, w);
-  out->append(w.gen_output_end());
-
-  out = &outs["Function"];
-  out->append(
-      w.gen_output_begin(get_additional_imports(function_types, "common", file_name_prefix, file_name_suffix, w)));
-  write_base_function_class(config, *out, request_types, result_types, w);
-  out->append(w.gen_output_end());
-
-  std::string additional_main_imports;
-  for (std::map<std::string, tl_string_outputer>::const_iterator it = outs.begin(); it != outs.end(); ++it) {
-    std::string file_name = file_name_prefix + "_" + it->first + file_name_suffix;
-    if (!put_file_contents(file_name, it->second.get_result(), w.is_documentation_generated())) {
-      return false;
-    }
-
-    if (file_name_suffix == w.gen_package_suffix()) {
-      additional_main_imports += w.gen_import_declaration(file_name, false);
-    }
-  }
-  if (!additional_main_imports.empty()) {
-    additional_main_imports += "\n";
-  }
-
-  tl_string_outputer main_out;
-  main_out.append(w.gen_output_begin(additional_main_imports));
-  main_out.append(w.gen_output_end());
-
-  return put_file_contents(file_name_prefix + file_name_suffix, main_out.get_result(), w.is_documentation_generated());
-}
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_generate.h b/third-party/td/td/tdtl/td/tl/tl_generate.h
deleted file mode 100644
index aed64c5791..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_generate.h
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_config.h"
-#include "td/tl/tl_outputer.h"
-#include "td/tl/tl_writer.h"
-
-#include <string>
-
-namespace td {
-namespace tl {
-
-void write_tl(const tl_config &config, tl_outputer &out, const TL_writer &w);
-
-tl_config read_tl_config_from_file(const std::string &file_name);
-
-bool write_tl_to_file(const tl_config &config, const std::string &file_name, const TL_writer &w);
-
-bool write_tl_to_multiple_files(const tl_config &config, const std::string &file_name_prefix,
-                                const std::string &file_name_suffix, const TL_writer &w);
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_outputer.cpp b/third-party/td/td/tdtl/td/tl/tl_outputer.cpp
deleted file mode 100644
index a1f8bbf93b..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_outputer.cpp
+++ /dev/null
@@ -1,16 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_outputer.h"
-
-namespace td {
-namespace tl {
-
-tl_outputer::~tl_outputer() {
-}
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_outputer.h b/third-party/td/td/tdtl/td/tl/tl_outputer.h
deleted file mode 100644
index 83a7c76fa8..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_outputer.h
+++ /dev/null
@@ -1,22 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <string>
-
-namespace td {
-namespace tl {
-
-class tl_outputer {
- public:
-  virtual void append(const std::string &str) = 0;
-
-  virtual ~tl_outputer() = 0;
-};
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_simple.h b/third-party/td/td/tdtl/td/tl/tl_simple.h
deleted file mode 100644
index b934cf78a1..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_simple.h
+++ /dev/null
@@ -1,256 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_config.h"
-
-#include <cassert>
-#include <cstddef>
-#include <cstdint>
-#include <map>
-#include <memory>
-#include <string>
-#include <vector>
-
-#include <iostream>
-
-namespace td {
-namespace tl {
-namespace simple {
-
-inline std::string gen_cpp_name(std::string name) {
-  for (auto &c : name) {
-    if ((c < '0' || '9' < c) && (c < 'a' || 'z' < c) && (c < 'A' || 'Z' < c)) {
-      c = '_';
-    }
-  }
-  assert(!name.empty());
-  assert(name[name.size() - 1] != '_');
-  return name;
-}
-
-inline std::string gen_cpp_field_name(std::string name) {
-  return gen_cpp_name(name) + '_';
-}
-
-struct CustomType;
-struct Type {
-  enum { Int32, Int53, Int64, Double, String, Bytes, Vector, Bool, Custom } type;
-
-  // type == Custom
-  bool is_bare{false};
-  const CustomType *custom{nullptr};
-
-  // type == Vector
-  const Type *vector_value_type{nullptr};
-};
-
-struct Arg {
-  const Type *type;
-  std::string name;
-};
-
-struct Constructor {
-  std::string name;
-  std::int32_t id;
-  std::vector<Arg> args;
-  const CustomType *type;
-};
-
-struct CustomType {
-  std::string name;
-  std::vector<const Constructor *> constructors;
-
-  mutable bool is_result_{false};
-  mutable bool is_query_{false};
-};
-
-struct Function {
-  std::string name;
-  std::int32_t id;
-  std::vector<Arg> args;
-  const Type *type;
-};
-
-class Schema {
- public:
-  explicit Schema(const tl_config &config) {
-    config_ = &config;
-    for (std::size_t type_num = 0, type_count = config.get_type_count(); type_num < type_count; type_num++) {
-      auto *from_type = config.get_type_by_num(type_num);
-      if (from_type->name == "Vector") {
-        continue;
-      }
-      auto *type = get_type(from_type);
-      if (type->type == Type::Custom) {
-        custom_types.push_back(type->custom);
-      }
-    }
-    for (std::size_t function_num = 0, function_count = config.get_function_count(); function_num < function_count;
-         function_num++) {
-      auto *from_function = config.get_function_by_num(function_num);
-      functions.push_back(get_function(from_function));
-    }
-    for (auto &function : functions_) {
-      mark_result(function->type);
-      for (auto &arg : function->args) {
-        mark_query(arg.type);
-      }
-    }
-
-    //for (auto custom_type : custom_types) {
-    //std::cerr << custom_type->name;
-    //if (custom_type->is_result_) {
-    //std::cerr << " result";
-    //}
-    //if (custom_type->is_query_) {
-    //std::cerr << " query";
-    //}
-    //std::cerr << std::endl;
-    //}
-  }
-
-  std::vector<const CustomType *> custom_types;
-  std::vector<const Function *> functions;
-
- private:
-  std::vector<std::unique_ptr<Function>> functions_;
-  std::vector<std::unique_ptr<Constructor>> constructors_;
-  std::vector<std::unique_ptr<CustomType>> custom_types_;
-  std::vector<std::unique_ptr<Type>> types_;
-
-  const tl_config *config_{nullptr};
-  std::map<std::int32_t, Type *> type_by_id;
-  std::map<std::int32_t, Constructor *> constructor_by_id;
-  std::map<std::int32_t, Function *> function_by_id;
-
-  void mark_result(const Type *type) {
-    do_mark(type, true);
-  }
-
-  void mark_query(const Type *type) {
-    do_mark(type, false);
-  }
-
-  void do_mark(const Type *type, bool is_result) {
-    if (type->type == Type::Vector) {
-      return do_mark(type->vector_value_type, is_result);
-    }
-    if (type->type != Type::Custom) {
-      return;
-    }
-    auto *custom = type->custom;
-    auto &was = is_result ? custom->is_result_ : custom->is_query_;
-    if (was) {
-      return;
-    }
-    was = true;
-    for (auto constructor : custom->constructors) {
-      for (auto &arg : constructor->args) {
-        do_mark(arg.type, is_result);
-      }
-    }
-  }
-
-  const Type *get_type(const tl_type *from_type) {
-    auto &type = type_by_id[from_type->id];
-    if (!type) {
-      types_.push_back(std::make_unique<Type>());
-      type = types_.back().get();
-
-      if (from_type->name == "Int32") {
-        type->type = Type::Int32;
-      } else if (from_type->name == "Int53") {
-        type->type = Type::Int53;
-      } else if (from_type->name == "Int64") {
-        type->type = Type::Int64;
-      } else if (from_type->name == "Double") {
-        type->type = Type::Double;
-      } else if (from_type->name == "String") {
-        type->type = Type::String;
-      } else if (from_type->name == "Bytes") {
-        type->type = Type::Bytes;
-      } else if (from_type->name == "Bool") {
-        type->type = Type::Bool;
-      } else if (from_type->name == "Vector") {
-        assert(false);  // unreachable
-      } else {
-        type->type = Type::Custom;
-        custom_types_.push_back(std::make_unique<CustomType>());
-        auto *custom_type = custom_types_.back().get();
-        type->custom = custom_type;
-        custom_type->name = from_type->name;
-        for (auto *constructor : from_type->constructors) {
-          custom_type->constructors.push_back(get_constructor(constructor));
-        }
-      }
-    }
-    return type;
-  }
-
-  const CustomType *get_custom_type(const tl_type *from_type) {
-    auto *type = get_type(from_type);
-    assert(type->type == Type::Custom);
-    return type->custom;
-  }
-
-  const Constructor *get_constructor(const tl_combinator *from) {
-    auto &constructor = constructor_by_id[from->id];
-    if (!constructor) {
-      constructors_.push_back(std::make_unique<Constructor>());
-      constructor = constructors_.back().get();
-      constructor->id = from->id;
-      constructor->name = from->name;
-      constructor->type = get_custom_type(config_->get_type(from->type_id));
-      for (auto &from_arg : from->args) {
-        Arg arg;
-        arg.name = from_arg.name;
-        arg.type = get_type(from_arg.type);
-        constructor->args.push_back(std::move(arg));
-      }
-    }
-    return constructor;
-  }
-
-  const Function *get_function(const tl_combinator *from) {
-    auto &function = function_by_id[from->id];
-    if (!function) {
-      functions_.push_back(std::make_unique<Function>());
-      function = functions_.back().get();
-      function->id = from->id;
-      function->name = from->name;
-      function->type = get_type(config_->get_type(from->type_id));
-      for (auto &from_arg : from->args) {
-        Arg arg;
-        arg.name = from_arg.name;
-        arg.type = get_type(from_arg.type);
-        function->args.push_back(std::move(arg));
-      }
-    }
-    return function;
-  }
-
-  const Type *get_type(const tl_tree *tree) {
-    assert(tree->get_type() == NODE_TYPE_TYPE);
-    auto *type_tree = static_cast<const tl_tree_type *>(tree);
-    if (type_tree->type->name == "Vector") {
-      assert(type_tree->children.size() == 1);
-      types_.push_back(std::make_unique<Type>());
-      auto *type = types_.back().get();
-      type->type = Type::Vector;
-      type->vector_value_type = get_type(type_tree->children[0]);
-      return type;
-    } else {
-      assert(type_tree->children.empty());
-      return get_type(type_tree->type);
-    }
-  }
-};
-
-}  // namespace simple
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_simple_parser.h b/third-party/td/td/tdtl/td/tl/tl_simple_parser.h
deleted file mode 100644
index 9a94cb81ce..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_simple_parser.h
+++ /dev/null
@@ -1,107 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <cassert>
-#include <cstdint>
-#include <cstring>
-#include <string>
-
-namespace td {
-namespace tl {
-
-class tl_simple_parser {
-  const char *data;
-  const char *data_begin;
-  std::size_t data_len;
-  const char *error;
-  std::size_t error_pos;
-
-  void set_error(const char *error_message) {
-    if (error == NULL) {
-      assert(error_message != NULL);
-      error = error_message;
-      error_pos = static_cast<std::size_t>(data - data_begin);
-      data = "\x00\x00\x00\x00\x00\x00\x00\x00";
-      data_len = 0;
-    } else {
-      data = "\x00\x00\x00\x00\x00\x00\x00\x00";
-      assert(data_len == 0);
-    }
-  }
-
-  void check_len(const std::size_t len) {
-    if (data_len < len) {
-      set_error("Not enough data to read");
-    } else {
-      data_len -= len;
-    }
-  }
-
-  tl_simple_parser(const tl_simple_parser &other);
-  tl_simple_parser &operator=(const tl_simple_parser &other);
-
- public:
-  tl_simple_parser(const char *data, std::size_t data_len)
-      : data(data), data_begin(data), data_len(data_len), error(), error_pos() {
-  }
-
-  const char *get_error() const {
-    return error;
-  }
-
-  std::size_t get_error_pos() const {
-    return error_pos;
-  }
-
-  std::int32_t fetch_int() {
-    check_len(sizeof(std::int32_t));
-    std::int32_t result = *reinterpret_cast<const std::int32_t *>(data);
-    data += sizeof(std::int32_t);
-    return result;
-  }
-
-  std::int64_t fetch_long() {
-    check_len(sizeof(std::int64_t));
-    std::int64_t result;
-    std::memcpy(&result, data, sizeof(std::int64_t));
-    data += sizeof(std::int64_t);
-    return result;
-  }
-
-  std::string fetch_string() {
-    check_len(4);
-    int result_len = static_cast<unsigned char>(data[0]);
-    if (result_len < 254) {
-      check_len((result_len >> 2) * 4);
-      std::string result(data + 1, result_len);
-      data += ((result_len >> 2) + 1) * 4;
-      return result;
-    }
-
-    if (result_len == 254) {
-      result_len = static_cast<unsigned char>(data[1]) + (static_cast<unsigned char>(data[2]) << 8) +
-                   (static_cast<unsigned char>(data[3]) << 16);
-      check_len(((result_len + 3) >> 2) * 4);
-      std::string result(data + 4, result_len);
-      data += ((result_len + 7) >> 2) * 4;
-      return result;
-    }
-
-    set_error("Can't fetch string, 255 found");
-    return std::string();
-  }
-
-  void fetch_end() {
-    if (data_len) {
-      set_error("Too much data to fetch");
-    }
-  }
-};
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_string_outputer.cpp b/third-party/td/td/tdtl/td/tl/tl_string_outputer.cpp
deleted file mode 100644
index e844b3bc9d..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_string_outputer.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_string_outputer.h"
-
-namespace td {
-namespace tl {
-
-void tl_string_outputer::append(const std::string &str) {
-  result += str;
-}
-
-std::string tl_string_outputer::get_result() const {
-#if defined(_WIN32)
-  std::string fixed_result;
-  for (std::size_t i = 0; i < result.size(); i++) {
-    if (result[i] == '\n') {
-      fixed_result += '\r';
-    }
-    fixed_result += result[i];
-  }
-  return fixed_result;
-#else
-  return result;
-#endif
-}
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_string_outputer.h b/third-party/td/td/tdtl/td/tl/tl_string_outputer.h
deleted file mode 100644
index cf334e8944..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_string_outputer.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_outputer.h"
-
-#include <string>
-
-namespace td {
-namespace tl {
-
-class tl_string_outputer : public tl_outputer {
-  std::string result;
-
- public:
-  virtual void append(const std::string &str);
-
-  std::string get_result() const;
-};
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_writer.cpp b/third-party/td/td/tdtl/td/tl/tl_writer.cpp
deleted file mode 100644
index 0045d75ea7..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_writer.cpp
+++ /dev/null
@@ -1,239 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/tl/tl_writer.h"
-
-#include "td/tl/tl_core.h"
-
-#include <cassert>
-#include <cstdio>
-
-namespace td {
-namespace tl {
-
-std::string TL_writer::int_to_string(int x) {
-  char buf[15];
-  std::snprintf(buf, sizeof(buf), "%d", x);
-  return buf;
-}
-
-bool TL_writer::is_alnum(char c) {
-  return ('0' <= c && c <= '9') || ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z');
-}
-
-char TL_writer::to_lower(char c) {
-  return 'A' <= c && c <= 'Z' ? static_cast<char>(c - 'A' + 'a') : c;
-}
-
-char TL_writer::to_upper(char c) {
-  return 'a' <= c && c <= 'z' ? static_cast<char>(c - 'a' + 'A') : c;
-}
-
-std::vector<std::string> TL_writer::get_additional_functions() const {
-  return std::vector<std::string>();
-}
-
-bool TL_writer::is_type_supported(const tl_tree_type *tree_type) const {
-  if (tree_type->type->flags & FLAG_COMPLEX) {
-    return false;
-  }
-
-  for (std::size_t i = 0; i < tree_type->children.size(); i++) {
-    const tl_tree *child = tree_type->children[i];
-    assert(child->get_type() == NODE_TYPE_TYPE || child->get_type() == NODE_TYPE_VAR_TYPE ||
-           child->get_type() == NODE_TYPE_NAT_CONST || child->get_type() == NODE_TYPE_VAR_NUM);
-
-    if (child->get_type() == NODE_TYPE_TYPE) {
-      if (!is_type_supported(static_cast<const tl_tree_type *>(child))) {
-        return false;
-      }
-    }
-    if (child->get_type() == NODE_TYPE_VAR_TYPE) {
-      return false;  // TODO
-    }
-  }
-
-  return true;
-}
-
-bool TL_writer::is_combinator_supported(const tl_combinator *constructor) const {
-  std::vector<bool> is_function_result(constructor->var_count);
-  for (std::size_t i = 0; i < constructor->args.size(); i++) {
-    const arg &a = constructor->args[i];
-
-    int arg_type = a.type->get_type();
-    if (arg_type == NODE_TYPE_VAR_TYPE) {
-      const tl_tree_var_type *t = static_cast<const tl_tree_var_type *>(a.type);
-      if (a.flags & FLAG_EXCL) {
-        assert(t->var_num >= 0);
-        if (is_function_result[t->var_num]) {
-          return false;  // lazy to check that results of two function calls are the same
-        }
-        is_function_result[t->var_num] = true;
-      } else {
-        return false;  // do not support generic types
-      }
-    }
-  }
-
-  for (std::size_t i = 0; i < constructor->args.size(); i++) {
-    const arg &a = constructor->args[i];
-
-    int arg_type = a.type->get_type();
-    if (a.var_num >= 0) {
-      assert(arg_type == NODE_TYPE_TYPE);
-      const tl_tree_type *a_type = static_cast<const tl_tree_type *>(a.type);
-      if (a_type->type->id == ID_VAR_TYPE) {
-        assert(!(a_type->flags & FLAG_EXCL));
-        if (!is_function_result[a.var_num]) {
-          assert(false);  // not possible, otherwise type is an argument of a type, but all types with type arguments
-                          // are already marked complex
-          return false;
-        } else {
-          continue;
-        }
-      }
-    }
-
-    if (arg_type == NODE_TYPE_VAR_TYPE) {
-      continue;
-    } else if (arg_type == NODE_TYPE_TYPE) {
-      if (!is_type_supported(static_cast<const tl_tree_type *>(a.type))) {
-        return false;
-      }
-    } else {
-      assert(arg_type == NODE_TYPE_ARRAY);
-      const tl_tree_array *arr = static_cast<const tl_tree_array *>(a.type);
-      for (std::size_t j = 0; j < arr->args.size(); j++) {
-        const arg &b = arr->args[j];
-        assert(b.type->get_type() == NODE_TYPE_TYPE && b.var_num == -1);
-        if (!is_type_supported(static_cast<const tl_tree_type *>(b.type))) {
-          return false;
-        }
-      }
-    }
-  }
-
-  tl_tree *result = constructor->result;
-  if (result->get_type() == NODE_TYPE_TYPE) {
-    if (!is_type_supported(static_cast<const tl_tree_type *>(result))) {
-      return false;
-    }
-  } else {
-    assert(result->get_type() == NODE_TYPE_VAR_TYPE);
-    const tl_tree_var_type *t = static_cast<const tl_tree_var_type *>(result);
-    return is_function_result[t->var_num];
-  }
-
-  return true;
-}
-
-bool TL_writer::is_documentation_generated() const {
-  return false;
-}
-
-bool TL_writer::is_default_constructor_generated(const tl_combinator *t, bool can_be_parsed, bool can_be_stored) const {
-  return true;
-}
-
-bool TL_writer::is_full_constructor_generated(const tl_combinator *t, bool can_be_parsed, bool can_be_stored) const {
-  return true;
-}
-
-std::string TL_writer::gen_main_class_name(const tl_type *t) const {
-  if (t->simple_constructors == 1) {
-    for (std::size_t i = 0; i < t->constructors_num; i++) {
-      if (is_combinator_supported(t->constructors[i])) {
-        return gen_class_name(t->constructors[i]->name);
-      }
-    }
-  }
-
-  return gen_class_name(t->name);
-}
-
-int TL_writer::get_parser_type(const tl_combinator *t, const std::string &parser_name) const {
-  return t->var_count > 0;
-}
-
-int TL_writer::get_storer_type(const tl_combinator *t, const std::string &storer_name) const {
-  return 0;
-}
-
-int TL_writer::get_additional_function_type(const std::string &additional_function_name) const {
-  return 0;
-}
-
-TL_writer::Mode TL_writer::get_parser_mode(int type) const {
-  return All;
-}
-
-TL_writer::Mode TL_writer::get_storer_mode(int type) const {
-  return All;
-}
-
-std::string TL_writer::gen_field_type(const arg &a) const {
-  if (a.flags & FLAG_EXCL) {
-    assert(a.flags == FLAG_EXCL);
-    assert(a.type->get_type() == NODE_TYPE_VAR_TYPE);
-
-    return gen_var_type_name();
-  }
-
-  assert(a.flags == FLAG_NOVAR || a.flags == 0 || a.flags == (FLAG_OPT_VAR | FLAG_NOVAR | FLAG_BARE));
-
-  if (a.type->get_type() == NODE_TYPE_TYPE) {
-    const tl_tree_type *arg_type = static_cast<const tl_tree_type *>(a.type);
-    assert(arg_type->children.size() == static_cast<std::size_t>(arg_type->type->arity));
-
-    if (arg_type->type->id == ID_VAR_TYPE) {
-      return std::string();
-    }
-
-    return gen_type_name(arg_type);
-  } else {
-    assert(a.flags == FLAG_NOVAR || a.flags == 0);
-
-    assert(a.type->get_type() == NODE_TYPE_ARRAY);
-    const tl_tree_array *arg_array = static_cast<const tl_tree_array *>(a.type);
-    assert((arg_array->flags & ~FLAG_NOVAR) == 0);
-    return gen_array_type_name(arg_array, a.name);
-  }
-}
-
-std::string TL_writer::gen_additional_function(const std::string &function_name, const tl_combinator *t,
-                                               bool is_function) const {
-  assert(false);
-  return "";
-}
-
-std::string TL_writer::gen_additional_proxy_function_begin(const std::string &function_name, const tl_type *type,
-                                                           const std::string &class_name, int arity,
-                                                           bool is_function) const {
-  assert(false);
-  return "";
-}
-
-std::string TL_writer::gen_additional_proxy_function_case(const std::string &function_name, const tl_type *type,
-                                                          const std::string &class_name, int arity) const {
-  assert(false);
-  return "";
-}
-
-std::string TL_writer::gen_additional_proxy_function_case(const std::string &function_name, const tl_type *type,
-                                                          const tl_combinator *t, int arity, bool is_function) const {
-  assert(false);
-  return "";
-}
-
-std::string TL_writer::gen_additional_proxy_function_end(const std::string &function_name, const tl_type *type,
-                                                         bool is_function) const {
-  assert(false);
-  return "";
-}
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdtl/td/tl/tl_writer.h b/third-party/td/td/tdtl/td/tl/tl_writer.h
deleted file mode 100644
index bc50b77071..0000000000
--- a/third-party/td/td/tdtl/td/tl/tl_writer.h
+++ /dev/null
@@ -1,169 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/tl/tl_core.h"
-
-#include <cstdint>
-#include <string>
-#include <vector>
-
-namespace td {
-namespace tl {
-
-class var_description {
- public:
-  int index;
-  bool is_stored;
-  bool is_type;
-  int parameter_num;
-  int function_arg_num;
-
-  var_description() : index(-1), is_stored(false), is_type(false), parameter_num(-1), function_arg_num(-1) {
-  }
-};
-
-class TL_writer {
-  TL_writer(const TL_writer &other);
-  TL_writer &operator=(const TL_writer &other);
-
- protected:
-  const std::string tl_name;
-
- public:
-  enum Mode { All, Client, Server };
-
-  explicit TL_writer(const std::string &tl_name) : tl_name(tl_name) {
-  }
-
-  virtual ~TL_writer() {
-  }
-
-  virtual int get_max_arity() const = 0;
-
-  static std::string int_to_string(int x);
-  static bool is_alnum(char c);
-  static char to_lower(char c);
-  static char to_upper(char c);
-
-  virtual bool is_built_in_simple_type(const std::string &name) const = 0;
-  virtual bool is_built_in_complex_type(const std::string &name) const = 0;
-  virtual bool is_type_supported(const tl_tree_type *tree_type) const;
-  virtual bool is_type_bare(const tl_type *t) const = 0;
-  virtual bool is_combinator_supported(const tl_combinator *constructor) const;
-  virtual bool is_documentation_generated() const;
-  virtual bool is_default_constructor_generated(const tl_combinator *t, bool can_be_parsed, bool can_be_stored) const;
-  virtual bool is_full_constructor_generated(const tl_combinator *t, bool can_be_parsed, bool can_be_stored) const;
-
-  virtual int get_parser_type(const tl_combinator *t, const std::string &parser_name) const;
-  virtual int get_storer_type(const tl_combinator *t, const std::string &storer_name) const;
-  virtual int get_additional_function_type(const std::string &additional_function_name) const;
-  virtual Mode get_parser_mode(int type) const;
-  virtual Mode get_storer_mode(int type) const;
-  virtual std::vector<std::string> get_parsers() const = 0;
-  virtual std::vector<std::string> get_storers() const = 0;
-  virtual std::vector<std::string> get_additional_functions() const;
-
-  virtual std::string gen_base_tl_class_name() const = 0;
-  virtual std::string gen_base_type_class_name(int arity) const = 0;
-  virtual std::string gen_base_function_class_name() const = 0;
-  virtual std::string gen_class_name(std::string name) const = 0;
-  virtual std::string gen_field_name(std::string name) const = 0;
-  virtual std::string gen_var_name(const var_description &desc) const = 0;
-  virtual std::string gen_parameter_name(int index) const = 0;
-  virtual std::string gen_main_class_name(const tl_type *t) const;
-  virtual std::string gen_field_type(const arg &a) const;
-  virtual std::string gen_type_name(const tl_tree_type *tree_type) const = 0;
-  virtual std::string gen_array_type_name(const tl_tree_array *arr, const std::string &field_name) const = 0;
-  virtual std::string gen_var_type_name() const = 0;
-
-  virtual std::string gen_int_const(const tl_tree *tree_c, const std::vector<var_description> &vars) const = 0;
-
-  virtual std::string gen_output_begin(const std::string &additional_imports) const = 0;
-  virtual std::string gen_output_begin_once() const = 0;
-  virtual std::string gen_output_end() const = 0;
-
-  virtual std::string gen_import_declaration(const std::string &name, bool is_system) const = 0;
-  virtual std::string gen_package_suffix() const = 0;
-
-  virtual std::string gen_forward_class_declaration(const std::string &class_name, bool is_proxy) const = 0;
-
-  virtual std::string gen_class_begin(const std::string &class_name, const std::string &base_class_name, bool is_proxy,
-                                      const tl_tree *result) const = 0;
-  virtual std::string gen_class_end() const = 0;
-
-  virtual std::string gen_class_alias(const std::string &class_name, const std::string &alias_name) const = 0;
-
-  virtual std::string gen_field_definition(const std::string &class_name, const std::string &type_name,
-                                           const std::string &field_name) const = 0;
-  virtual std::string gen_flags_definitions(const tl_combinator *t, bool can_be_stored) const {
-    return "";
-  }
-
-  virtual std::string gen_vars(const tl_combinator *t, const tl_tree_type *result_type,
-                               std::vector<var_description> &vars) const = 0;
-  virtual std::string gen_function_vars(const tl_combinator *t, std::vector<var_description> &vars) const = 0;
-  virtual std::string gen_uni(const tl_tree_type *result_type, std::vector<var_description> &vars,
-                              bool check_negative) const = 0;
-  virtual std::string gen_constructor_id_store(std::int32_t id, int storer_type) const = 0;
-  virtual std::string gen_field_fetch(int field_num, const arg &a, std::vector<var_description> &vars, bool flat,
-                                      int parser_type) const = 0;
-  virtual std::string gen_field_store(const arg &a, const std::vector<arg> &args, std::vector<var_description> &vars,
-                                      bool flat, int storer_type) const = 0;
-  virtual std::string gen_type_fetch(const std::string &field_name, const tl_tree_type *tree_type,
-                                     const std::vector<var_description> &vars, int parser_type) const = 0;
-  virtual std::string gen_type_store(const std::string &field_name, const tl_tree_type *tree_type,
-                                     const std::vector<var_description> &vars, int storer_type) const = 0;
-  virtual std::string gen_var_type_fetch(const arg &a) const = 0;
-
-  virtual std::string gen_get_id(const std::string &class_name, std::int32_t id, bool is_proxy) const = 0;
-
-  virtual std::string gen_function_result_type(const tl_tree *result) const = 0;
-
-  virtual std::string gen_fetch_function_begin(const std::string &parser_name, const std::string &class_name,
-                                               const std::string &parent_class_name, int arity, int field_count,
-                                               std::vector<var_description> &vars, int parser_type) const = 0;
-  virtual std::string gen_fetch_function_end(bool has_parent, int field_count, const std::vector<var_description> &vars,
-                                             int parser_type) const = 0;
-
-  virtual std::string gen_fetch_function_result_begin(const std::string &parser_name, const std::string &class_name,
-                                                      const tl_tree *result) const = 0;
-  virtual std::string gen_fetch_function_result_end() const = 0;
-  virtual std::string gen_fetch_function_result_any_begin(const std::string &parser_name, const std::string &class_name,
-                                                          bool is_proxy) const = 0;
-  virtual std::string gen_fetch_function_result_any_end(bool is_proxy) const = 0;
-
-  virtual std::string gen_store_function_begin(const std::string &storer_name, const std::string &class_name, int arity,
-                                               std::vector<var_description> &vars, int storer_type) const = 0;
-  virtual std::string gen_store_function_end(const std::vector<var_description> &vars, int storer_type) const = 0;
-
-  virtual std::string gen_fetch_switch_begin() const = 0;
-  virtual std::string gen_fetch_switch_case(const tl_combinator *t, int arity) const = 0;
-  virtual std::string gen_fetch_switch_end() const = 0;
-
-  virtual std::string gen_constructor_begin(int field_count, const std::string &class_name, bool is_default) const = 0;
-  virtual std::string gen_constructor_parameter(int field_num, const std::string &class_name, const arg &a,
-                                                bool is_default) const = 0;
-  virtual std::string gen_constructor_field_init(int field_num, const std::string &class_name, const arg &a,
-                                                 bool is_default) const = 0;
-  virtual std::string gen_constructor_end(const tl_combinator *t, int field_count, bool is_default) const = 0;
-
-  virtual std::string gen_additional_function(const std::string &function_name, const tl_combinator *t,
-                                              bool is_function) const;
-  virtual std::string gen_additional_proxy_function_begin(const std::string &function_name, const tl_type *type,
-                                                          const std::string &class_name, int arity,
-                                                          bool is_function) const;
-  virtual std::string gen_additional_proxy_function_case(const std::string &function_name, const tl_type *type,
-                                                         const std::string &class_name, int arity) const;
-  virtual std::string gen_additional_proxy_function_case(const std::string &function_name, const tl_type *type,
-                                                         const tl_combinator *t, int arity, bool is_function) const;
-  virtual std::string gen_additional_proxy_function_end(const std::string &function_name, const tl_type *type,
-                                                        bool is_function) const;
-};
-
-}  // namespace tl
-}  // namespace td
diff --git a/third-party/td/td/tdutils/CMakeLists.txt b/third-party/td/td/tdutils/CMakeLists.txt
deleted file mode 100644
index 5576fed879..0000000000
--- a/third-party/td/td/tdutils/CMakeLists.txt
+++ /dev/null
@@ -1,430 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-option(TDUTILS_ENABLE_INSTALL "Enable installation of the library." ON)
-option(TDUTILS_MIME_TYPE "Generate MIME types conversion; requires gperf." ON)
-option(TDUTILS_USE_EXTERNAL_DEPENDENCIES "Use external libraries if available." ON)
-
-if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
-  set(CMAKE_INSTALL_LIBDIR "lib")
-endif()
-
-if (NOT ZLIB_FOUND AND TDUTILS_USE_EXTERNAL_DEPENDENCIES)
-  find_package(ZLIB)
-endif()
-if (ZLIB_FOUND)
-  set(TD_HAVE_ZLIB 1)
-  message(STATUS "Found ZLIB: ${ZLIB_INCLUDE_DIR} ${ZLIB_LIBRARIES}")
-
-  # OpenSSL internally depends on zlib
-  if (NOT OPENSSL_FOUND)
-    find_package(OpenSSL)
-  endif()
-  if (OPENSSL_FOUND)
-    set(TD_HAVE_OPENSSL 1)
-  endif()
-endif()
-
-if (NOT CRC32C_FOUND AND TDUTILS_USE_EXTERNAL_DEPENDENCIES)
-  find_package(Crc32c QUIET)
-endif()
-if (CRC32C_FOUND)
-  set(TD_HAVE_CRC32C 1)
-endif()
-
-if (TD_WITH_ABSEIL AND TDUTILS_USE_EXTERNAL_DEPENDENCIES)
-  find_package(ABSL QUIET)
-  if (ABSL_FOUND)
-    set(TD_HAVE_ABSL 1)
-  endif()
-endif()
-
-configure_file(td/utils/config.h.in td/utils/config.h @ONLY)
-
-add_subdirectory(generate)
-
-set_source_files_properties(${TDMIME_AUTO} PROPERTIES GENERATED TRUE)
-if (CLANG OR GCC)
-  set_property(SOURCE ${TDMIME_AUTO} APPEND_STRING PROPERTY COMPILE_FLAGS " -Wno-conversion")
-elseif (MSVC)
-  set_property(SOURCE ${TDMIME_AUTO} APPEND_STRING PROPERTY COMPILE_FLAGS " /wd4267")
-endif()
-set_property(SOURCE ${TDMIME_AUTO} APPEND PROPERTY COMPILE_DEFINITIONS "__gnu_inline__=;register=")
-
-set(TDUTILS_SOURCE
-  td/utils/port/Clocks.cpp
-  td/utils/port/FileFd.cpp
-  td/utils/port/IPAddress.cpp
-  td/utils/port/MemoryMapping.cpp
-  td/utils/port/path.cpp
-  td/utils/port/platform.cpp
-  td/utils/port/PollFlags.cpp
-  td/utils/port/rlimit.cpp
-  td/utils/port/ServerSocketFd.cpp
-  td/utils/port/signals.cpp
-  td/utils/port/sleep.cpp
-  td/utils/port/SocketFd.cpp
-  td/utils/port/stacktrace.cpp
-  td/utils/port/Stat.cpp
-  td/utils/port/StdStreams.cpp
-  td/utils/port/thread_local.cpp
-  td/utils/port/UdpSocketFd.cpp
-  td/utils/port/uname.cpp
-  td/utils/port/user.cpp
-  td/utils/port/wstring_convert.cpp
-
-  td/utils/port/detail/Epoll.cpp
-  td/utils/port/detail/EventFdBsd.cpp
-  td/utils/port/detail/EventFdLinux.cpp
-  td/utils/port/detail/EventFdWindows.cpp
-  td/utils/port/detail/Iocp.cpp
-  td/utils/port/detail/KQueue.cpp
-  td/utils/port/detail/NativeFd.cpp
-  td/utils/port/detail/Poll.cpp
-  td/utils/port/detail/Select.cpp
-  td/utils/port/detail/ThreadIdGuard.cpp
-  td/utils/port/detail/ThreadPthread.cpp
-  td/utils/port/detail/WineventPoll.cpp
-
-  ${TDMIME_AUTO}
-
-  td/utils/AsyncFileLog.cpp
-  td/utils/base64.cpp
-  td/utils/BigNum.cpp
-  td/utils/buffer.cpp
-  td/utils/BufferedUdp.cpp
-  td/utils/check.cpp
-  td/utils/crypto.cpp
-  td/utils/Ed25519.cpp
-  td/utils/emoji.cpp
-  td/utils/ExitGuard.cpp
-  td/utils/FileLog.cpp
-  td/utils/filesystem.cpp
-  td/utils/find_boundary.cpp
-  td/utils/FlatHashTable.cpp
-  td/utils/FloodControlGlobal.cpp
-  td/utils/Gzip.cpp
-  td/utils/GzipByteFlow.cpp
-  td/utils/Hints.cpp
-  td/utils/HttpDate.cpp
-  td/utils/HttpUrl.cpp
-  td/utils/JsonBuilder.cpp
-  td/utils/logging.cpp
-  td/utils/misc.cpp
-  td/utils/MpmcQueue.cpp
-  td/utils/OptionParser.cpp
-  td/utils/PathView.cpp
-  td/utils/Random.cpp
-  td/utils/SharedSlice.cpp
-  td/utils/Slice.cpp
-  td/utils/StackAllocator.cpp
-  td/utils/Status.cpp
-  td/utils/StringBuilder.cpp
-  td/utils/tests.cpp
-  td/utils/Time.cpp
-  td/utils/Timer.cpp
-  td/utils/tl_parsers.cpp
-  td/utils/translit.cpp
-  td/utils/TsCerr.cpp
-  td/utils/TsFileLog.cpp
-  td/utils/TsLog.cpp
-  td/utils/unicode.cpp
-  td/utils/utf8.cpp
-
-  td/utils/port/Clocks.h
-  td/utils/port/config.h
-  td/utils/port/CxCli.h
-  td/utils/port/EventFd.h
-  td/utils/port/EventFdBase.h
-  td/utils/port/FileFd.h
-  td/utils/port/FromApp.h
-  td/utils/port/IoSlice.h
-  td/utils/port/IPAddress.h
-  td/utils/port/MemoryMapping.h
-  td/utils/port/Mutex.h
-  td/utils/port/path.h
-  td/utils/port/platform.h
-  td/utils/port/Poll.h
-  td/utils/port/PollBase.h
-  td/utils/port/PollFlags.h
-  td/utils/port/rlimit.h
-  td/utils/port/RwMutex.h
-  td/utils/port/ServerSocketFd.h
-  td/utils/port/signals.h
-  td/utils/port/sleep.h
-  td/utils/port/SocketFd.h
-  td/utils/port/stacktrace.h
-  td/utils/port/Stat.h
-  td/utils/port/StdStreams.h
-  td/utils/port/thread.h
-  td/utils/port/thread_local.h
-  td/utils/port/UdpSocketFd.h
-  td/utils/port/uname.h
-  td/utils/port/user.h
-  td/utils/port/wstring_convert.h
-
-  td/utils/port/detail/Epoll.h
-  td/utils/port/detail/EventFdBsd.h
-  td/utils/port/detail/EventFdLinux.h
-  td/utils/port/detail/EventFdWindows.h
-  td/utils/port/detail/Iocp.h
-  td/utils/port/detail/KQueue.h
-  td/utils/port/detail/NativeFd.h
-  td/utils/port/detail/Poll.h
-  td/utils/port/detail/PollableFd.h
-  td/utils/port/detail/Select.h
-  td/utils/port/detail/skip_eintr.h
-  td/utils/port/detail/ThreadIdGuard.h
-  td/utils/port/detail/ThreadPthread.h
-  td/utils/port/detail/ThreadStl.h
-  td/utils/port/detail/WineventPoll.h
-
-  td/utils/AesCtrByteFlow.h
-  td/utils/algorithm.h
-  td/utils/as.h
-  td/utils/AsyncFileLog.h
-  td/utils/AtomicRead.h
-  td/utils/base64.h
-  td/utils/benchmark.h
-  td/utils/BigNum.h
-  td/utils/bits.h
-  td/utils/buffer.h
-  td/utils/BufferedFd.h
-  td/utils/BufferedReader.h
-  td/utils/BufferedUdp.h
-  td/utils/ByteFlow.h
-  td/utils/CancellationToken.h
-  td/utils/ChainScheduler.h
-  td/utils/ChangesProcessor.h
-  td/utils/check.h
-  td/utils/Closure.h
-  td/utils/CombinedLog.h
-  td/utils/common.h
-  td/utils/ConcurrentHashTable.h
-  td/utils/Container.h
-  td/utils/Context.h
-  td/utils/crypto.h
-  td/utils/DecTree.h
-  td/utils/Destructor.h
-  td/utils/Ed25519.h
-  td/utils/emoji.h
-  td/utils/Enumerator.h
-  td/utils/EpochBasedMemoryReclamation.h
-  td/utils/ExitGuard.h
-  td/utils/FileLog.h
-  td/utils/filesystem.h
-  td/utils/find_boundary.h
-  td/utils/fixed_vector.h
-  td/utils/FlatHashMap.h
-  td/utils/FlatHashMapChunks.h
-  td/utils/FlatHashSet.h
-  td/utils/FlatHashTable.h
-  td/utils/FloodControlFast.h
-  td/utils/FloodControlGlobal.h
-  td/utils/FloodControlStrict.h
-  td/utils/format.h
-  td/utils/Gzip.h
-  td/utils/GzipByteFlow.h
-  td/utils/Hash.h
-  td/utils/HashMap.h
-  td/utils/HashSet.h
-  td/utils/HashTableUtils.h
-  td/utils/HazardPointers.h
-  td/utils/Heap.h
-  td/utils/Hints.h
-  td/utils/HttpDate.h
-  td/utils/HttpUrl.h
-  td/utils/int_types.h
-  td/utils/invoke.h
-  td/utils/JsonBuilder.h
-  td/utils/List.h
-  td/utils/logging.h
-  td/utils/MapNode.h
-  td/utils/MemoryLog.h
-  td/utils/misc.h
-  td/utils/MovableValue.h
-  td/utils/MpmcQueue.h
-  td/utils/MpmcWaiter.h
-  td/utils/MpscLinkQueue.h
-  td/utils/MpscPollableQueue.h
-  td/utils/Named.h
-  td/utils/NullLog.h
-  td/utils/ObjectPool.h
-  td/utils/Observer.h
-  td/utils/optional.h
-  td/utils/OptionParser.h
-  td/utils/OrderedEventsProcessor.h
-  td/utils/overloaded.h
-  td/utils/Parser.h
-  td/utils/PathView.h
-  td/utils/Promise.h
-  td/utils/queue.h
-  td/utils/Random.h
-  td/utils/ScopeGuard.h
-  td/utils/SetNode.h
-  td/utils/SharedObjectPool.h
-  td/utils/SharedSlice.h
-  td/utils/simple_tests.h
-  td/utils/Slice-decl.h
-  td/utils/Slice.h
-  td/utils/SliceBuilder.h
-  td/utils/Span.h
-  td/utils/SpinLock.h
-  td/utils/StackAllocator.h
-  td/utils/Status.h
-  td/utils/StealingQueue.h
-  td/utils/Storer.h
-  td/utils/StorerBase.h
-  td/utils/StringBuilder.h
-  td/utils/tests.h
-  td/utils/ThreadLocalStorage.h
-  td/utils/ThreadSafeCounter.h
-  td/utils/Time.h
-  td/utils/TimedStat.h
-  td/utils/Timer.h
-  td/utils/tl_helpers.h
-  td/utils/tl_parsers.h
-  td/utils/tl_storers.h
-  td/utils/TlDowncastHelper.h
-  td/utils/TlStorerToString.h
-  td/utils/translit.h
-  td/utils/TsCerr.h
-  td/utils/TsFileLog.h
-  td/utils/TsList.h
-  td/utils/TsLog.h
-  td/utils/type_traits.h
-  td/utils/UInt.h
-  td/utils/uint128.h
-  td/utils/unicode.h
-  td/utils/unique_ptr.h
-  td/utils/unique_value_ptr.h
-  td/utils/utf8.h
-  td/utils/Variant.h
-  td/utils/VectorQueue.h
-  td/utils/WaitFreeHashMap.h
-  td/utils/WaitFreeHashSet.h
-  td/utils/WaitFreeVector.h
-)
-
-if (TDUTILS_MIME_TYPE)
-  set(TDUTILS_SOURCE
-    ${TDUTILS_SOURCE}
-    td/utils/MimeType.cpp
-    td/utils/MimeType.h
-  )
-endif()
-
-set(TDUTILS_TEST_SOURCE
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/bitmask.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/buffer.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/ChainScheduler.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/ConcurrentHashMap.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/crypto.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/emoji.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/Enumerator.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/EpochBasedMemoryReclamation.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/filesystem.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/gzip.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/HazardPointers.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/HashSet.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/heap.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/HttpUrl.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/json.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/List.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/log.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/misc.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/MpmcQueue.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/MpmcWaiter.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/MpscLinkQueue.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/OptionParser.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/OrderedEventsProcessor.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/port.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/pq.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/SharedObjectPool.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/SharedSlice.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/StealingQueue.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/variant.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/WaitFreeHashMap.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/WaitFreeHashSet.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/test/WaitFreeVector.cpp
-  PARENT_SCOPE
-)
-
-add_library(tdutils STATIC ${TDUTILS_SOURCE})
-
-if (NOT CMAKE_CROSSCOMPILING AND TDUTILS_MIME_TYPE)
-  add_dependencies(tdutils tdmime_auto)
-endif()
-
-if (DEFINED CMAKE_THREAD_LIBS_INIT)
-  target_link_libraries(tdutils PUBLIC ${CMAKE_THREAD_LIBS_INIT})
-endif()
-target_include_directories(tdutils PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>)
-
-if (OPENSSL_FOUND)
-  target_link_libraries(tdutils PRIVATE ${OPENSSL_CRYPTO_LIBRARY} ${CMAKE_DL_LIBS} ${ZLIB_LIBRARIES})
-  target_include_directories(tdutils SYSTEM PRIVATE ${OPENSSL_INCLUDE_DIR})
-
-  if (WIN32)
-    if (MINGW)
-      target_link_libraries(tdutils PRIVATE ws2_32 mswsock crypt32)
-    else()
-      target_link_libraries(tdutils PRIVATE ws2_32 Mswsock Crypt32)
-    endif()
-  endif()
-endif()
-
-if (ZLIB_FOUND)
-  target_link_libraries(tdutils PRIVATE ${ZLIB_LIBRARIES})
-  target_include_directories(tdutils SYSTEM PRIVATE ${ZLIB_INCLUDE_DIR})
-endif()
-
-if (CRC32C_FOUND)
-  target_link_libraries(tdutils PRIVATE crc32c)
-endif()
-if (ABSL_FOUND)
-  target_link_libraries(tdutils PUBLIC absl::flat_hash_map absl::flat_hash_set absl::hash)
-endif()
-
-if (WIN32)
-  # find_library for system libraries doesn't work for UWP builds
-  # find_library(WS2_32_LIBRARY ws2_32)
-  # find_library(MSWSOCK_LIBRARY Mswsock)
-  # target_link_libraries(tdutils PRIVATE ${WS2_32_LIBRARY} ${MSWSOCK_LIBRARY})
-  if (MINGW)
-    target_link_libraries(tdutils PRIVATE ws2_32 mswsock normaliz psapi)
-  else()
-    target_link_libraries(tdutils PRIVATE ws2_32 Mswsock Normaliz psapi)
-  endif()
-  if (NOT CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
-    target_link_libraries(tdutils PRIVATE shell32)
-  endif()
-endif()
-
-if (ANDROID)
-  target_link_libraries(tdutils PRIVATE log)
-endif()
-
-find_package(Atomics REQUIRED)
-if (ATOMICS_LIBRARIES)
-  target_link_libraries(tdutils PUBLIC "${ATOMICS_LIBRARIES}")
-endif()
-
-if (TDUTILS_ENABLE_INSTALL)
-  install(TARGETS tdutils EXPORT TdStaticTargets
-    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  )
-endif()
-
-if (TD_TEST_FOLLY AND ABSL_FOUND AND TDUTILS_USE_EXTERNAL_DEPENDENCIES)
-  find_package(benchmark QUIET)
-  find_package(folly QUIET)
-  find_package(gflags QUIET)
-
-  if (benchmark_FOUND AND folly_FOUND)
-    add_executable(benchmark-hashset test/hashset_benchmark.cpp)
-    target_link_libraries(benchmark-hashset PRIVATE tdutils benchmark::benchmark Folly::folly absl::flat_hash_map absl::hash)
-  endif()
-endif()
diff --git a/third-party/td/td/tdutils/generate/CMakeLists.txt b/third-party/td/td/tdutils/generate/CMakeLists.txt
deleted file mode 100644
index 389f553f6a..0000000000
--- a/third-party/td/td/tdutils/generate/CMakeLists.txt
+++ /dev/null
@@ -1,62 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-# Generates files for MIME type <-> extension conversions
-# DEPENDS ON: gperf grep
-
-if (NOT TDUTILS_MIME_TYPE)
-  return()
-endif()
-
-file(MAKE_DIRECTORY auto)
-
-set(TDMIME_SOURCE
-  ${CMAKE_CURRENT_SOURCE_DIR}/auto/mime_type_to_extension.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/auto/extension_to_mime_type.cpp
-)
-set(TDMIME_AUTO
-  ${TDMIME_SOURCE}
-  PARENT_SCOPE
-)
-
-add_custom_target(tdmime_auto DEPENDS ${TDMIME_SOURCE})
-
-if (NOT CMAKE_CROSSCOMPILING)
-  find_program(GPERF_EXECUTABLE gperf)
-  if (NOT GPERF_EXECUTABLE)
-    message(FATAL_ERROR "Could NOT find gperf. Add path to gperf executable to PATH environment variable or specify it manually using GPERF_EXECUTABLE option, i.e. 'cmake -DGPERF_EXECUTABLE:FILEPATH=\"<path to gperf executable>\"'.")
-  endif()
-
-  set(GPERF_FILES
-    ${CMAKE_CURRENT_SOURCE_DIR}/auto/mime_type_to_extension.gperf
-    ${CMAKE_CURRENT_SOURCE_DIR}/auto/extension_to_mime_type.gperf
-  )
-
-  set(GPERF_GEN_SOURCE generate_mime_types_gperf.cpp)
-
-  add_executable(generate_mime_types_gperf ${GPERF_GEN_SOURCE})
-
-  add_custom_command(
-    OUTPUT ${GPERF_FILES}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND generate_mime_types_gperf mime_types.txt ${GPERF_FILES}
-    DEPENDS generate_mime_types_gperf mime_types.txt
-  )
-
-  set(MIME_TYPE_TO_EXTENSION_CMD ${GPERF_EXECUTABLE} -m100 --output-file=auto/mime_type_to_extension.cpp auto/mime_type_to_extension.gperf)
-  add_custom_command(
-    OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/auto/mime_type_to_extension.cpp
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND ${MIME_TYPE_TO_EXTENSION_CMD}
-    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/auto/mime_type_to_extension.gperf
-  )
-
-  set(EXTENSION_TO_MIME_TYPE_CMD ${GPERF_EXECUTABLE} -m100 --output-file=auto/extension_to_mime_type.cpp auto/extension_to_mime_type.gperf)
-  add_custom_command(
-    OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/auto/extension_to_mime_type.cpp
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMAND ${EXTENSION_TO_MIME_TYPE_CMD}
-    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/auto/extension_to_mime_type.gperf
-  )
-endif()
diff --git a/third-party/td/td/tdutils/generate/generate_mime_types_gperf.cpp b/third-party/td/td/tdutils/generate/generate_mime_types_gperf.cpp
deleted file mode 100644
index 0f7972f5d9..0000000000
--- a/third-party/td/td/tdutils/generate/generate_mime_types_gperf.cpp
+++ /dev/null
@@ -1,156 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include <algorithm>
-#include <cassert>
-#include <cstddef>
-#include <fstream>
-#include <iostream>
-#include <map>
-#include <string>
-#include <tuple>
-#include <utility>
-#include <vector>
-
-static std::pair<std::string, std::string> split(std::string s, char delimiter = ' ') {
-  auto delimiter_pos = s.find(delimiter);
-  if (delimiter_pos == std::string::npos) {
-    return {std::move(s), ""};
-  } else {
-    auto head = s.substr(0, delimiter_pos);
-    auto tail = s.substr(delimiter_pos + 1);
-    return {head, tail};
-  }
-}
-
-static bool generate(const char *file_name, const char *from_name, const char *to_name,
-                     const std::map<std::string, std::string> &map) {
-  // binary mode is needed for MSYS2 gperf
-  std::ofstream out(file_name, std::ios_base::trunc | std::ios_base::binary);
-  if (!out) {
-    std::cerr << "Can't open output file \"" << file_name << std::endl;
-    return false;
-  }
-
-  out << "%struct-type\n";
-  out << "%ignore-case\n";
-  out << "%language=ANSI-C\n";
-  out << "%readonly-tables\n";
-  out << "%includes\n";
-  out << "%enum\n";
-  out << "%define slot-name " << from_name << "\n";
-  out << "%define initializer-suffix ,nullptr\n";
-  out << "%define slot-name " << from_name << "\n";
-  out << "%define hash-function-name " << from_name << "_hash\n";
-  out << "%define lookup-function-name search_" << from_name << "\n";
-  //  out << "%define class-name " << from_name << "_to_" << to_name << "\n";
-  out << "struct " << from_name << "_and_" << to_name << " {\n";
-  out << "  const char *" << from_name << ";\n";
-  out << "  const char *" << to_name << ";\n";
-  out << "}\n";
-  out << "%%\n";
-
-  for (auto &value : map) {
-    out << '"' << value.first << "\", \"" << value.second << '"' << "\n";
-  }
-
-  out << "%%\n";
-  out << "const char *" << from_name << "_to_" << to_name << "(const char *" << from_name << ", size_t " << from_name
-      << "_len) {\n";
-  out << "  const auto &result = search_" << from_name << "(" << from_name << ", " << from_name << "_len);\n";
-  out << "  if (result == nullptr) {\n";
-  out << "    return nullptr;\n";
-  out << "  }\n";
-  out << "\n";
-  out << "  return result->" << to_name << ";\n";
-  out << "}\n";
-
-  return true;
-}
-
-static bool is_private_mime_type(const std::string &mime_type) {
-  return mime_type.find("/x-") != std::string::npos;
-}
-
-int main(int argc, char *argv[]) {
-  if (argc != 4) {
-    std::cerr << "Wrong number of arguments supplied. Expected 'generate_mime_types_gperf <mime_types.txt> "
-                 "<mime_type_to_extension.cpp> <extension_to_mime_type.cpp>'"
-              << std::endl;
-    return EXIT_FAILURE;
-  }
-
-  std::ifstream mime_types_file(argv[1]);
-  if (!mime_types_file) {
-    std::cerr << "Can't open input file \"" << argv[1] << std::endl;
-    return EXIT_FAILURE;
-  }
-
-  std::map<std::string, std::string> mime_type_to_extension;
-  std::map<std::string, std::string> extension_to_mime_type;
-
-  std::string line;
-  while (std::getline(mime_types_file, line)) {
-    while (!line.empty() && (line.back() == '\r' || line.back() == '\n')) {
-      line.pop_back();
-    }
-
-    std::string mime_type;
-    std::string extensions_string;
-    std::tie(mime_type, extensions_string) = split(line, '\t');
-
-    if (mime_type.empty()) {
-      std::cerr << "Wrong MIME type description \"" << line << "\"" << std::endl;
-      continue;
-    }
-
-    auto extensions_start_position = extensions_string.find_first_not_of(" \t");
-    if (extensions_start_position == std::string::npos) {
-      std::cerr << "Wrong MIME type description \"" << line << "\"" << std::endl;
-      continue;
-    }
-    extensions_string = extensions_string.substr(extensions_start_position);
-
-    std::vector<std::string> extensions;
-    while (!extensions_string.empty()) {
-      extensions.emplace_back();
-      std::tie(extensions.back(), extensions_string) = split(extensions_string);
-    }
-    assert(!extensions.empty());
-
-    std::map<std::string, std::string> preffered_extensions{{"image/jpeg", "jpg"},  {"audio/mpeg", "mp3"},
-                                                            {"audio/midi", "midi"}, {"text/x-pascal", "pas"},
-                                                            {"text/x-asm", "asm"},  {"video/quicktime", "mov"}};
-    std::size_t index = 0;
-    if (preffered_extensions.count(mime_type) != 0) {
-      index = std::find(extensions.begin(), extensions.end(), preffered_extensions[mime_type]) - extensions.begin();
-      assert(index < extensions.size());
-    }
-    if (mime_type_to_extension.emplace_hint(mime_type_to_extension.end(), mime_type, extensions[index])->second !=
-        extensions[index]) {
-      std::cerr << "MIME type \"" << mime_type << "\" has more than one extensions list" << std::endl;
-    }
-
-    for (auto &extension : extensions) {
-      if (!extension_to_mime_type.emplace(extension, mime_type).second) {
-        if (is_private_mime_type(extension_to_mime_type[extension]) == is_private_mime_type(mime_type)) {
-          std::cerr << "Extension \"" << extension << "\" matches more than one type" << std::endl;
-        } else {
-          if (!is_private_mime_type(mime_type)) {
-            extension_to_mime_type[extension] = mime_type;
-          }
-        }
-      }
-    }
-  }
-
-  if (!generate(argv[2], "mime_type", "extension", mime_type_to_extension)) {
-    return EXIT_FAILURE;
-  }
-  if (!generate(argv[3], "extension", "mime_type", extension_to_mime_type)) {
-    return EXIT_FAILURE;
-  }
-}
diff --git a/third-party/td/td/tdutils/generate/mime_types.txt b/third-party/td/td/tdutils/generate/mime_types.txt
deleted file mode 100644
index 18dcfb775b..0000000000
--- a/third-party/td/td/tdutils/generate/mime_types.txt
+++ /dev/null
@@ -1,779 +0,0 @@
-application/andrew-inset			ez
-application/applixware				aw
-application/atom+xml				atom
-application/atomcat+xml				atomcat
-application/atomsvc+xml				atomsvc
-application/ccxml+xml				ccxml
-application/cdmi-capability			cdmia
-application/cdmi-container			cdmic
-application/cdmi-domain				cdmid
-application/cdmi-object				cdmio
-application/cdmi-queue				cdmiq
-application/cu-seeme				cu
-application/davmount+xml			davmount
-application/docbook+xml				dbk
-application/dssc+der				dssc
-application/dssc+xml				xdssc
-application/ecmascript				es
-application/emma+xml				emma
-application/epub+zip				epub
-application/exi					exi
-application/font-tdpfr				pfr
-application/gml+xml				gml
-application/gpx+xml				gpx
-application/gxf					gxf
-application/hyperstudio				stk
-application/inkml+xml				ink inkml
-application/ipfix				ipfix
-application/java-archive			jar
-application/java-serialized-object		ser
-application/java-vm				class
-application/javascript				js
-application/json				json
-application/jsonml+json				jsonml
-application/lost+xml				lostxml
-application/mac-binhex40			hqx
-application/mac-compactpro			cpt
-application/mads+xml				mads
-application/marc				mrc
-application/marcxml+xml				mrcx
-application/mathematica				ma nb mb
-application/mathml+xml				mathml
-application/mbox				mbox
-application/mediaservercontrol+xml		mscml
-application/metalink+xml			metalink
-application/metalink4+xml			meta4
-application/mets+xml				mets
-application/mods+xml				mods
-application/mp21				m21 mp21
-application/mp4					mp4s
-application/msword				doc dot
-application/mxf					mxf
-application/octet-stream	bin dms lrf mar so dist distz pkg bpk dump elc deploy
-application/oda					oda
-application/oebps-package+xml			opf
-application/ogg					ogx
-application/omdoc+xml				omdoc
-application/onenote				onetoc onetoc2 onetmp onepkg
-application/oxps				oxps
-application/patch-ops-error+xml			xer
-application/pdf					pdf
-application/pgp-encrypted			pgp
-application/pgp-signature			asc sig
-application/pics-rules				prf
-application/pkcs10				p10
-application/pkcs7-mime				p7m p7c
-application/pkcs7-signature			p7s
-application/pkcs8				p8
-application/pkix-attr-cert			ac
-application/pkix-cert				cer
-application/pkix-crl				crl
-application/pkix-pkipath			pkipath
-application/pkixcmp				pki
-application/pls+xml				pls
-application/postscript				ai eps ps
-application/prs.cww				cww
-application/pskc+xml				pskcxml
-application/rdf+xml				rdf
-application/reginfo+xml				rif
-application/relax-ng-compact-syntax		rnc
-application/resource-lists+xml			rl
-application/resource-lists-diff+xml		rld
-application/rls-services+xml			rs
-application/rpki-ghostbusters			gbr
-application/rpki-manifest			mft
-application/rpki-roa				roa
-application/rsd+xml				rsd
-application/rss+xml				rss
-application/rtf					rtf
-application/sbml+xml				sbml
-application/scvp-cv-request			scq
-application/scvp-cv-response			scs
-application/scvp-vp-request			spq
-application/scvp-vp-response			spp
-application/sdp					sdp
-application/set-payment-initiation		setpay
-application/set-registration-initiation		setreg
-application/shf+xml				shf
-application/smil+xml				smi smil
-application/sparql-query			rq
-application/sparql-results+xml			srx
-application/srgs				gram
-application/srgs+xml				grxml
-application/sru+xml				sru
-application/ssdl+xml				ssdl
-application/ssml+xml				ssml
-application/tei+xml				tei teicorpus
-application/thraud+xml				tfi
-application/timestamped-data			tsd
-application/vnd.3gpp.pic-bw-large		plb
-application/vnd.3gpp.pic-bw-small		psb
-application/vnd.3gpp.pic-bw-var			pvb
-application/vnd.3gpp2.tcap			tcap
-application/vnd.3m.post-it-notes		pwn
-application/vnd.accpac.simply.aso		aso
-application/vnd.accpac.simply.imp		imp
-application/vnd.acucobol			acu
-application/vnd.acucorp				atc acutc
-application/vnd.adobe.air-application-installer-package+zip	air
-application/vnd.adobe.formscentral.fcdt		fcdt
-application/vnd.adobe.fxp			fxp fxpl
-application/vnd.adobe.xdp+xml			xdp
-application/vnd.adobe.xfdf			xfdf
-application/vnd.ahead.space			ahead
-application/vnd.airzip.filesecure.azf		azf
-application/vnd.airzip.filesecure.azs		azs
-application/vnd.amazon.ebook			azw
-application/vnd.americandynamics.acc		acc
-application/vnd.amiga.ami			ami
-application/vnd.android.package-archive		apk
-application/vnd.anser-web-certificate-issue-initiation	cii
-application/vnd.anser-web-funds-transfer-initiation	fti
-application/vnd.antix.game-component		atx
-application/vnd.apple.installer+xml		mpkg
-application/vnd.apple.mpegurl			m3u8
-application/vnd.aristanetworks.swi		swi
-application/vnd.astraea-software.iota		iota
-application/vnd.audiograph			aep
-application/vnd.blueice.multipass		mpm
-application/vnd.bmi				bmi
-application/vnd.businessobjects			rep
-application/vnd.chemdraw+xml			cdxml
-application/vnd.chipnuts.karaoke-mmd		mmd
-application/vnd.cinderella			cdy
-application/vnd.claymore			cla
-application/vnd.cloanto.rp9			rp9
-application/vnd.clonk.c4group			c4g c4d c4f c4p c4u
-application/vnd.cluetrust.cartomobile-config		c11amc
-application/vnd.cluetrust.cartomobile-config-pkg	c11amz
-application/vnd.commonspace			csp
-application/vnd.contact.cmsg			cdbcmsg
-application/vnd.cosmocaller			cmc
-application/vnd.crick.clicker			clkx
-application/vnd.crick.clicker.keyboard		clkk
-application/vnd.crick.clicker.palette		clkp
-application/vnd.crick.clicker.template		clkt
-application/vnd.crick.clicker.wordbank		clkw
-application/vnd.criticaltools.wbs+xml		wbs
-application/vnd.ctc-posml			pml
-application/vnd.cups-ppd			ppd
-application/vnd.curl.car			car
-application/vnd.curl.pcurl			pcurl
-application/vnd.dart				dart
-application/vnd.data-vision.rdz			rdz
-application/vnd.dece.data			uvf uvvf uvd uvvd
-application/vnd.dece.ttml+xml			uvt uvvt
-application/vnd.dece.unspecified		uvx uvvx
-application/vnd.dece.zip			uvz uvvz
-application/vnd.denovo.fcselayout-link		fe_launch
-application/vnd.dna				dna
-application/vnd.dolby.mlp			mlp
-application/vnd.dpgraph				dpg
-application/vnd.dreamfactory			dfac
-application/vnd.ds-keypoint			kpxx
-application/vnd.dvb.ait				ait
-application/vnd.dvb.service			svc
-application/vnd.dynageo				geo
-application/vnd.ecowin.chart			mag
-application/vnd.enliven				nml
-application/vnd.epson.esf			esf
-application/vnd.epson.msf			msf
-application/vnd.epson.quickanime		qam
-application/vnd.epson.salt			slt
-application/vnd.epson.ssf			ssf
-application/vnd.eszigno3+xml			es3 et3
-application/vnd.ezpix-album			ez2
-application/vnd.ezpix-package			ez3
-application/vnd.fdf				fdf
-application/vnd.fdsn.mseed			mseed
-application/vnd.fdsn.seed			seed dataless
-application/vnd.flographit			gph
-application/vnd.fluxtime.clip			ftc
-application/vnd.framemaker			fm frame maker book
-application/vnd.frogans.fnc			fnc
-application/vnd.frogans.ltf			ltf
-application/vnd.fsc.weblaunch			fsc
-application/vnd.fujitsu.oasys			oas
-application/vnd.fujitsu.oasys2			oa2
-application/vnd.fujitsu.oasys3			oa3
-application/vnd.fujitsu.oasysgp			fg5
-application/vnd.fujitsu.oasysprs		bh2
-application/vnd.fujixerox.ddd			ddd
-application/vnd.fujixerox.docuworks		xdw
-application/vnd.fujixerox.docuworks.binder	xbd
-application/vnd.fuzzysheet			fzs
-application/vnd.genomatix.tuxedo		txd
-application/vnd.geogebra.file			ggb
-application/vnd.geogebra.tool			ggt
-application/vnd.geometry-explorer		gex gre
-application/vnd.geonext				gxt
-application/vnd.geoplan				g2w
-application/vnd.geospace			g3w
-application/vnd.gmx				gmx
-application/vnd.google-earth.kml+xml		kml
-application/vnd.google-earth.kmz		kmz
-application/vnd.grafeq				gqf gqs
-application/vnd.groove-account			gac
-application/vnd.groove-help			ghf
-application/vnd.groove-identity-message		gim
-application/vnd.groove-injector			grv
-application/vnd.groove-tool-message		gtm
-application/vnd.groove-tool-template		tpl
-application/vnd.groove-vcard			vcg
-application/vnd.hal+xml				hal
-application/vnd.handheld-entertainment+xml	zmm
-application/vnd.hbci				hbci
-application/vnd.hhe.lesson-player		les
-application/vnd.hp-hpgl				hpgl
-application/vnd.hp-hpid				hpid
-application/vnd.hp-hps				hps
-application/vnd.hp-jlyt				jlt
-application/vnd.hp-pcl				pcl
-application/vnd.hp-pclxl			pclxl
-application/vnd.hydrostatix.sof-data		sfd-hdstx
-application/vnd.ibm.minipay			mpy
-application/vnd.ibm.modcap			afp listafp list3820
-application/vnd.ibm.rights-management		irm
-application/vnd.ibm.secure-container		sc
-application/vnd.iccprofile			icc icm
-application/vnd.igloader			igl
-application/vnd.immervision-ivp			ivp
-application/vnd.immervision-ivu			ivu
-application/vnd.insors.igm			igm
-application/vnd.intercon.formnet		xpw xpx
-application/vnd.intergeo			i2g
-application/vnd.intu.qbo			qbo
-application/vnd.intu.qfx			qfx
-application/vnd.ipunplugged.rcprofile		rcprofile
-application/vnd.irepository.package+xml		irp
-application/vnd.is-xpr				xpr
-application/vnd.isac.fcs			fcs
-application/vnd.jam				jam
-application/vnd.jcp.javame.midlet-rms		rms
-application/vnd.jisp				jisp
-application/vnd.joost.joda-archive		joda
-application/vnd.kahootz				ktz ktr
-application/vnd.kde.karbon			karbon
-application/vnd.kde.kchart			chrt
-application/vnd.kde.kformula			kfo
-application/vnd.kde.kivio			flw
-application/vnd.kde.kontour			kon
-application/vnd.kde.kpresenter			kpr kpt
-application/vnd.kde.kspread			ksp
-application/vnd.kde.kword			kwd kwt
-application/vnd.kenameaapp			htke
-application/vnd.kidspiration			kia
-application/vnd.kinar				kne knp
-application/vnd.koan				skp skd skt skm
-application/vnd.kodak-descriptor		sse
-application/vnd.las.las+xml			lasxml
-application/vnd.llamagraphics.life-balance.desktop	lbd
-application/vnd.llamagraphics.life-balance.exchange+xml	lbe
-application/vnd.lotus-1-2-3			123
-application/vnd.lotus-approach			apr
-application/vnd.lotus-freelance			pre
-application/vnd.lotus-notes			nsf
-application/vnd.lotus-organizer			org
-application/vnd.lotus-screencam			scm
-application/vnd.lotus-wordpro			lwp
-application/vnd.macports.portpkg		portpkg
-application/vnd.mcd				mcd
-application/vnd.medcalcdata			mc1
-application/vnd.mediastation.cdkey		cdkey
-application/vnd.mfer				mwf
-application/vnd.mfmp				mfm
-application/vnd.micrografx.flo			flo
-application/vnd.micrografx.igx			igx
-application/vnd.mif				mif
-application/vnd.mobius.daf			daf
-application/vnd.mobius.dis			dis
-application/vnd.mobius.mbk			mbk
-application/vnd.mobius.mqy			mqy
-application/vnd.mobius.msl			msl
-application/vnd.mobius.plc			plc
-application/vnd.mobius.txf			txf
-application/vnd.mophun.application		mpn
-application/vnd.mophun.certificate		mpc
-application/vnd.mozilla.xul+xml			xul
-application/vnd.ms-artgalry			cil
-application/vnd.ms-cab-compressed		cab
-application/vnd.ms-excel			xls xlm xla xlc xlt xlw
-application/vnd.ms-excel.addin.macroenabled.12		xlam
-application/vnd.ms-excel.sheet.binary.macroenabled.12	xlsb
-application/vnd.ms-excel.sheet.macroenabled.12		xlsm
-application/vnd.ms-excel.template.macroenabled.12	xltm
-application/vnd.ms-fontobject			eot
-application/vnd.ms-htmlhelp			chm
-application/vnd.ms-ims				ims
-application/vnd.ms-lrm				lrm
-application/vnd.ms-officetheme			thmx
-application/vnd.ms-pki.seccat			cat
-application/vnd.ms-pki.stl			stl
-application/vnd.ms-powerpoint			ppt pps pot
-application/vnd.ms-powerpoint.addin.macroenabled.12		ppam
-application/vnd.ms-powerpoint.presentation.macroenabled.12	pptm
-application/vnd.ms-powerpoint.slide.macroenabled.12		sldm
-application/vnd.ms-powerpoint.slideshow.macroenabled.12		ppsm
-application/vnd.ms-powerpoint.template.macroenabled.12		potm
-application/vnd.ms-project			mpp mpt
-application/vnd.ms-word.document.macroenabled.12	docm
-application/vnd.ms-word.template.macroenabled.12	dotm
-application/vnd.ms-works			wps wks wcm wdb
-application/vnd.ms-wpl				wpl
-application/vnd.ms-xpsdocument			xps
-application/vnd.mseq				mseq
-application/vnd.musician			mus
-application/vnd.muvee.style			msty
-application/vnd.mynfc				taglet
-application/vnd.neurolanguage.nlu		nlu
-application/vnd.nitf				ntf nitf
-application/vnd.noblenet-directory		nnd
-application/vnd.noblenet-sealer			nns
-application/vnd.noblenet-web			nnw
-application/vnd.nokia.n-gage.data		ngdat
-application/vnd.nokia.n-gage.symbian.install	n-gage
-application/vnd.nokia.radio-preset		rpst
-application/vnd.nokia.radio-presets		rpss
-application/vnd.novadigm.edm			edm
-application/vnd.novadigm.edx			edx
-application/vnd.novadigm.ext			ext
-application/vnd.oasis.opendocument.chart		odc
-application/vnd.oasis.opendocument.chart-template	otc
-application/vnd.oasis.opendocument.database		odb
-application/vnd.oasis.opendocument.formula		odf
-application/vnd.oasis.opendocument.formula-template	odft
-application/vnd.oasis.opendocument.graphics		odg
-application/vnd.oasis.opendocument.graphics-template	otg
-application/vnd.oasis.opendocument.image		odi
-application/vnd.oasis.opendocument.image-template	oti
-application/vnd.oasis.opendocument.presentation		odp
-application/vnd.oasis.opendocument.presentation-template	otp
-application/vnd.oasis.opendocument.spreadsheet		ods
-application/vnd.oasis.opendocument.spreadsheet-template	ots
-application/vnd.oasis.opendocument.text			odt
-application/vnd.oasis.opendocument.text-master		odm
-application/vnd.oasis.opendocument.text-template	ott
-application/vnd.oasis.opendocument.text-web		oth
-application/vnd.olpc-sugar			xo
-application/vnd.oma.dd2+xml			dd2
-application/vnd.openofficeorg.extension		oxt
-application/vnd.openxmlformats-officedocument.presentationml.presentation	pptx
-application/vnd.openxmlformats-officedocument.presentationml.slide	sldx
-application/vnd.openxmlformats-officedocument.presentationml.slideshow	ppsx
-application/vnd.openxmlformats-officedocument.presentationml.template	potx
-application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	xlsx
-application/vnd.openxmlformats-officedocument.spreadsheetml.template	xltx
-application/vnd.openxmlformats-officedocument.wordprocessingml.document	docx
-application/vnd.openxmlformats-officedocument.wordprocessingml.template	dotx
-application/vnd.osgeo.mapguide.package		mgp
-application/vnd.osgi.dp				dp
-application/vnd.osgi.subsystem			esa
-application/vnd.palm				pdb pqa oprc
-application/vnd.pawaafile			paw
-application/vnd.pg.format			str
-application/vnd.pg.osasli			ei6
-application/vnd.picsel				efif
-application/vnd.pmi.widget			wg
-application/vnd.pocketlearn			plf
-application/vnd.powerbuilder6			pbd
-application/vnd.previewsystems.box		box
-application/vnd.proteus.magazine		mgz
-application/vnd.publishare-delta-tree		qps
-application/vnd.pvi.ptid1			ptid
-application/vnd.quark.quarkxpress		qxd qxt qwd qwt qxl qxb
-application/vnd.realvnc.bed			bed
-application/vnd.recordare.musicxml		mxl
-application/vnd.recordare.musicxml+xml		musicxml
-application/vnd.rig.cryptonote			cryptonote
-application/vnd.rim.cod				cod
-application/vnd.rn-realmedia			rm
-application/vnd.rn-realmedia-vbr		rmvb
-application/vnd.route66.link66+xml		link66
-application/vnd.sailingtracker.track		st
-application/vnd.seemail				see
-application/vnd.sema				sema
-application/vnd.semd				semd
-application/vnd.semf				semf
-application/vnd.shana.informed.formdata		ifm
-application/vnd.shana.informed.formtemplate	itp
-application/vnd.shana.informed.interchange	iif
-application/vnd.shana.informed.package		ipk
-application/vnd.simtech-mindmapper		twd twds
-application/vnd.smaf				mmf
-application/vnd.smart.teacher			teacher
-application/vnd.solent.sdkm+xml			sdkm sdkd
-application/vnd.spotfire.dxp			dxp
-application/vnd.spotfire.sfs			sfs
-application/vnd.stardivision.calc		sdc
-application/vnd.stardivision.draw		sda
-application/vnd.stardivision.impress		sdd
-application/vnd.stardivision.math		smf
-application/vnd.stardivision.writer		sdw vor
-application/vnd.stardivision.writer-global	sgl
-application/vnd.stepmania.package		smzip
-application/vnd.stepmania.stepchart		sm
-application/vnd.sun.xml.calc			sxc
-application/vnd.sun.xml.calc.template		stc
-application/vnd.sun.xml.draw			sxd
-application/vnd.sun.xml.draw.template		std
-application/vnd.sun.xml.impress			sxi
-application/vnd.sun.xml.impress.template	sti
-application/vnd.sun.xml.math			sxm
-application/vnd.sun.xml.writer			sxw
-application/vnd.sun.xml.writer.global		sxg
-application/vnd.sun.xml.writer.template		stw
-application/vnd.sus-calendar			sus susp
-application/vnd.svd				svd
-application/vnd.symbian.install			sis sisx
-application/vnd.syncml+xml			xsm
-application/vnd.syncml.dm+wbxml			bdm
-application/vnd.syncml.dm+xml			xdm
-application/vnd.tao.intent-module-archive	tao
-application/vnd.tcpdump.pcap			pcap cap dmp
-application/vnd.tmobile-livetv			tmo
-application/vnd.trid.tpt			tpt
-application/vnd.triscape.mxs			mxs
-application/vnd.trueapp				tra
-application/vnd.ufdl				ufd ufdl
-application/vnd.uiq.theme			utz
-application/vnd.umajin				umj
-application/vnd.unity				unityweb
-application/vnd.uoml+xml			uoml
-application/vnd.vcx				vcx
-application/vnd.visio				vsd vst vss vsw
-application/vnd.visionary			vis
-application/vnd.vsf				vsf
-application/vnd.wap.wbxml			wbxml
-application/vnd.wap.wmlc			wmlc
-application/vnd.wap.wmlscriptc			wmlsc
-application/vnd.webturbo			wtb
-application/vnd.wolfram.player			nbp
-application/vnd.wordperfect			wpd
-application/vnd.wqd				wqd
-application/vnd.wt.stf				stf
-application/vnd.xara				xar
-application/vnd.xfdl				xfdl
-application/vnd.yamaha.hv-dic			hvd
-application/vnd.yamaha.hv-script		hvs
-application/vnd.yamaha.hv-voice			hvp
-application/vnd.yamaha.openscoreformat			osf
-application/vnd.yamaha.openscoreformat.osfpvg+xml	osfpvg
-application/vnd.yamaha.smaf-audio		saf
-application/vnd.yamaha.smaf-phrase		spf
-application/vnd.yellowriver-custom-menu		cmp
-application/vnd.zul				zir zirz
-application/vnd.zzazz.deck+xml			zaz
-application/voicexml+xml			vxml
-application/widget				wgt
-application/winhlp				hlp
-application/wsdl+xml				wsdl
-application/wspolicy+xml			wspolicy
-application/x-7z-compressed			7z
-application/x-abiword				abw
-application/x-ace-compressed			ace
-application/x-apple-diskimage			dmg
-application/x-authorware-bin			aab x32 u32 vox
-application/x-authorware-map			aam
-application/x-authorware-seg			aas
-application/x-bcpio				bcpio
-application/x-bittorrent			torrent
-application/x-blorb				blb blorb
-application/x-bzip				bz
-application/x-bzip2				bz2 boz
-application/x-cbr				cbr cba cbt cbz cb7
-application/x-cdlink				vcd
-application/x-cfs-compressed			cfs
-application/x-chat				chat
-application/x-chess-pgn				pgn
-application/x-conference			nsc
-application/x-cpio				cpio
-application/x-csh				csh
-application/x-debian-package			deb udeb
-application/x-dgc-compressed			dgc
-application/x-director			dir dcr dxr cst cct cxt w3d fgd swa
-application/x-doom				wad
-application/x-dtbncx+xml			ncx
-application/x-dtbook+xml			dtb
-application/x-dtbresource+xml			res
-application/x-dvi				dvi
-application/x-envoy				evy
-application/x-eva				eva
-application/x-fictionbook+xml			fb2
-application/x-font-bdf				bdf
-application/x-font-ghostscript			gsf
-application/x-font-linux-psf			psf
-application/x-font-otf				otf
-application/x-font-pcf				pcf
-application/x-font-snf				snf
-application/x-font-ttf				ttf ttc
-application/x-font-type1			pfa pfb pfm afm
-application/x-font-woff				woff
-application/x-freearc				arc
-application/x-futuresplash			spl
-application/x-gca-compressed			gca
-application/x-glulx				ulx
-application/x-gnumeric				gnumeric
-application/x-gramps-xml			gramps
-application/x-gtar				gtar
-application/x-hdf				hdf
-application/x-install-instructions		install
-application/x-iso9660-image			iso
-application/x-java-jnlp-file			jnlp
-application/x-latex				latex
-application/x-lzh-compressed			lzh lha
-application/x-mie				mie
-application/x-mobipocket-ebook			prc mobi
-application/x-ms-application			application
-application/x-ms-shortcut			lnk
-application/x-ms-wmd				wmd
-application/x-ms-wmz				wmz
-application/x-ms-xbap				xbap
-application/x-msaccess				mdb
-application/x-msbinder				obd
-application/x-mscardfile			crd
-application/x-msclip				clp
-application/x-msdownload			exe dll com bat msi
-application/x-msmediaview			mvb m13 m14
-application/x-msmetafile			wmf wmz emf emz
-application/x-msmoney				mny
-application/x-mspublisher			pub
-application/x-msschedule			scd
-application/x-msterminal			trm
-application/x-mswrite				wri
-application/x-netcdf				nc cdf
-application/x-nzb				nzb
-application/x-pkcs12				p12 pfx
-application/x-pkcs7-certificates		p7b spc
-application/x-pkcs7-certreqresp			p7r
-application/x-rar-compressed			rar
-application/x-research-info-systems		ris
-application/x-sh				sh
-application/x-shar				shar
-application/x-shockwave-flash			swf
-application/x-silverlight-app			xap
-application/x-sql				sql
-application/x-stuffit				sit
-application/x-stuffitx				sitx
-application/x-subrip				srt
-application/x-sv4cpio				sv4cpio
-application/x-sv4crc				sv4crc
-application/x-t3vm-image			t3
-application/x-tads				gam
-application/x-tar				tar
-application/x-tcl				tcl
-application/x-tex				tex
-application/x-tex-tfm				tfm
-application/x-texinfo				texinfo texi
-application/x-tgif				obj
-application/x-tgsticker				tgs
-application/x-tgwallpattern			tgv
-application/x-ustar				ustar
-application/x-wais-source			src
-application/x-x509-ca-cert			der crt
-application/x-xfig				fig
-application/x-xliff+xml				xlf
-application/x-xpinstall				xpi
-application/x-xz				xz
-application/x-zmachine				z1 z2 z3 z4 z5 z6 z7 z8
-application/xaml+xml				xaml
-application/xcap-diff+xml			xdf
-application/xenc+xml				xenc
-application/xhtml+xml				xhtml xht
-application/xml					xml xsl
-application/xml-dtd				dtd
-application/xop+xml				xop
-application/xproc+xml				xpl
-application/xslt+xml				xslt
-application/xspf+xml				xspf
-application/xv+xml				mxml xhvml xvml xvm
-application/yang				yang
-application/yin+xml				yin
-application/zip					zip
-audio/adpcm					adp
-audio/basic					au snd
-audio/midi					mid midi kar rmi
-audio/mp4					m4a mp4a
-audio/mpeg					mpga mp2 mp2a mp3 m2a m3a
-audio/ogg					oga ogg opus spx
-audio/s3m					s3m
-audio/silk					sil
-audio/vnd.dece.audio				uva uvva
-audio/vnd.digital-winds				eol
-audio/vnd.dra					dra
-audio/vnd.dts					dts
-audio/vnd.dts.hd				dtshd
-audio/vnd.lucent.voice				lvp
-audio/vnd.ms-playready.media.pya		pya
-audio/vnd.nuera.ecelp4800			ecelp4800
-audio/vnd.nuera.ecelp7470			ecelp7470
-audio/vnd.nuera.ecelp9600			ecelp9600
-audio/vnd.rip					rip
-audio/webm					weba
-audio/x-aac					aac
-audio/x-aiff					aif aiff aifc
-audio/x-caf					caf
-audio/x-flac					flac
-audio/x-matroska				mka
-audio/x-mpegurl					m3u
-audio/x-ms-wax					wax
-audio/x-ms-wma					wma
-audio/x-pn-realaudio				ram ra
-audio/x-pn-realaudio-plugin			rmp
-audio/x-wav					wav
-audio/xm					xm
-chemical/x-cdx					cdx
-chemical/x-cif					cif
-chemical/x-cmdf					cmdf
-chemical/x-cml					cml
-chemical/x-csml					csml
-chemical/x-xyz					xyz
-font/collection					ttc
-font/otf					otf
-font/ttf					ttf
-font/woff					woff
-font/woff2					woff2
-image/bmp					bmp
-image/cgm					cgm
-image/g3fax					g3
-image/gif					gif
-image/heic					heic
-image/heic-sequence				heics
-image/heif					heif
-image/heif-sequence				heifs
-image/ief					ief
-image/jpeg					jpeg jpg jpe
-image/ktx					ktx
-image/png					png
-image/prs.btif					btif
-image/sgi					sgi
-image/svg+xml					svg svgz
-image/tiff					tiff tif
-image/vnd.adobe.photoshop			psd
-image/vnd.dece.graphic				uvi uvvi uvg uvvg
-image/vnd.djvu					djvu djv
-image/vnd.dvb.subtitle				sub
-image/vnd.dwg					dwg
-image/vnd.dxf					dxf
-image/vnd.fastbidsheet				fbs
-image/vnd.fpx					fpx
-image/vnd.fst					fst
-image/vnd.fujixerox.edmics-mmr			mmr
-image/vnd.fujixerox.edmics-rlc			rlc
-image/vnd.ms-modi				mdi
-image/vnd.ms-photo				wdp
-image/vnd.net-fpx				npx
-image/vnd.wap.wbmp				wbmp
-image/vnd.xiff					xif
-image/webp					webp
-image/x-3ds					3ds
-image/x-cmu-raster				ras
-image/x-cmx					cmx
-image/x-freehand				fh fhc fh4 fh5 fh7
-image/x-icon					ico
-image/x-mrsid-image				sid
-image/x-pcx					pcx
-image/x-pict					pic pct
-image/x-portable-anymap				pnm
-image/x-portable-bitmap				pbm
-image/x-portable-graymap			pgm
-image/x-portable-pixmap				ppm
-image/x-rgb					rgb
-image/x-tga					tga
-image/x-xbitmap					xbm
-image/x-xpixmap					xpm
-image/x-xwindowdump				xwd
-message/rfc822					eml mime
-model/iges					igs iges
-model/mesh					msh mesh silo
-model/vnd.collada+xml				dae
-model/vnd.dwf					dwf
-model/vnd.gdl					gdl
-model/vnd.gtw					gtw
-model/vnd.mts					mts
-model/vnd.vtu					vtu
-model/vrml					wrl vrml
-model/x3d+binary				x3db x3dbz
-model/x3d+vrml					x3dv x3dvz
-model/x3d+xml					x3d x3dz
-text/cache-manifest				appcache
-text/calendar					ics ifb
-text/css					css
-text/csv					csv
-text/html					html htm
-text/n3						n3
-text/plain					txt text conf def list log in
-text/prs.lines.tag				dsc
-text/richtext					rtx
-text/sgml					sgml sgm
-text/tab-separated-values			tsv
-text/troff					t tr roff man me ms
-text/turtle					ttl
-text/uri-list					uri uris urls
-text/vcard					vcard
-text/vnd.curl					curl
-text/vnd.curl.dcurl				dcurl
-text/vnd.curl.mcurl				mcurl
-text/vnd.curl.scurl				scurl
-text/vnd.dvb.subtitle				sub
-text/vnd.fly					fly
-text/vnd.fmi.flexstor				flx
-text/vnd.graphviz				gv
-text/vnd.in3d.3dml				3dml
-text/vnd.in3d.spot				spot
-text/vnd.sun.j2me.app-descriptor		jad
-text/vnd.wap.wml				wml
-text/vnd.wap.wmlscript				wmls
-text/x-asm					s asm
-text/x-c					c cc cxx cpp h hh dic
-text/x-fortran					f for f77 f90
-text/x-java-source				java
-text/x-nfo					nfo
-text/x-opml					opml
-text/x-pascal					p pas
-text/x-php					php
-text/x-setext					etx
-text/x-sfv					sfv
-text/x-uuencode					uu
-text/x-vcalendar				vcs
-text/x-vcard					vcf
-video/3gpp					3gp
-video/3gpp2					3g2
-video/h261					h261
-video/h263					h263
-video/h264					h264
-video/h265					h265
-video/jpeg					jpgv
-video/jpm					jpm jpgm
-video/mj2					mj2 mjp2
-video/mp4					mp4 mp4v mpg4
-video/mpeg					mpeg mpg mpe m1v m2v
-video/ogg					ogv
-video/quicktime					qt mov
-video/vnd.dece.hd				uvh uvvh
-video/vnd.dece.mobile				uvm uvvm
-video/vnd.dece.pd				uvp uvvp
-video/vnd.dece.sd				uvs uvvs
-video/vnd.dece.video				uvv uvvv
-video/vnd.dvb.file				dvb
-video/vnd.fvt					fvt
-video/vnd.mpegurl				mxu m4u
-video/vnd.ms-playready.media.pyv		pyv
-video/vnd.uvvu.mp4				uvu uvvu
-video/vnd.vivo					viv
-video/webm					webm
-video/x-f4v					f4v
-video/x-fli					fli
-video/x-flv					flv
-video/x-m4v					m4v
-video/x-matroska				mkv mk3d mks
-video/x-mng					mng
-video/x-ms-asf					asf asx
-video/x-ms-vob					vob
-video/x-ms-wm					wm
-video/x-ms-wmv					wmv
-video/x-ms-wmx					wmx
-video/x-ms-wvx					wvx
-video/x-msvideo					avi
-video/x-sgi-movie				movie
-video/x-smv					smv
-x-conference/x-cooltalk				ice
diff --git a/third-party/td/td/tdutils/td/utils/AesCtrByteFlow.h b/third-party/td/td/tdutils/td/utils/AesCtrByteFlow.h
deleted file mode 100644
index 7a9bd2092a..0000000000
--- a/third-party/td/td/tdutils/td/utils/AesCtrByteFlow.h
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/ByteFlow.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-
-#if TD_HAVE_OPENSSL
-class AesCtrByteFlow final : public ByteFlowInplaceBase {
- public:
-  void init(const UInt256 &key, const UInt128 &iv) {
-    state_.init(as_slice(key), as_slice(iv));
-  }
-  void init(AesCtrState &&state) {
-    state_ = std::move(state);
-  }
-  AesCtrState move_aes_ctr_state() {
-    return std::move(state_);
-  }
-  bool loop() final {
-    bool result = false;
-    auto ready = input_->prepare_read();
-    if (!ready.empty()) {
-      state_.encrypt(ready, MutableSlice(const_cast<char *>(ready.data()), ready.size()));
-      input_->confirm_read(ready.size());
-      output_.advance_end(ready.size());
-      result = true;
-    }
-
-    if (!is_input_active_) {
-      finish(Status::OK());  // End of input stream.
-    }
-    return result;
-  }
-
- private:
-  AesCtrState state_;
-};
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/AsyncFileLog.cpp b/third-party/td/td/tdutils/td/utils/AsyncFileLog.cpp
deleted file mode 100644
index 872ed5c6bd..0000000000
--- a/third-party/td/td/tdutils/td/utils/AsyncFileLog.cpp
+++ /dev/null
@@ -1,165 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/AsyncFileLog.h"
-
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/port/StdStreams.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-#if !TD_THREAD_UNSUPPORTED
-
-Status AsyncFileLog::init(string path, int64 rotate_threshold, bool redirect_stderr) {
-  CHECK(path_.empty());
-  CHECK(!path.empty());
-
-  TRY_RESULT(fd, FileFd::open(path, FileFd::Create | FileFd::Write | FileFd::Append));
-  if (!Stderr().empty() && redirect_stderr) {
-    fd.get_native_fd().duplicate(Stderr().get_native_fd()).ignore();
-  }
-
-  auto r_path = realpath(path, true);
-  if (r_path.is_error()) {
-    path_ = std::move(path);
-  } else {
-    path_ = r_path.move_as_ok();
-  }
-  TRY_RESULT(size, fd.get_size());
-
-  queue_ = td::make_unique<MpscPollableQueue<Query>>();
-  queue_->init();
-
-  logging_thread_ = td::thread(
-      [queue = queue_.get(), fd = std::move(fd), path = path_, size, rotate_threshold, redirect_stderr]() mutable {
-        auto after_rotation = [&] {
-          fd.close();
-          auto r_fd = FileFd::open(path, FileFd::Create | FileFd::Write | FileFd::Append);
-          if (r_fd.is_error()) {
-            process_fatal_error(PSLICE() << r_fd.error() << " in " << __FILE__ << " at " << __LINE__ << '\n');
-          }
-          fd = r_fd.move_as_ok();
-          if (!Stderr().empty() && redirect_stderr) {
-            fd.get_native_fd().duplicate(Stderr().get_native_fd()).ignore();
-          }
-          auto r_size = fd.get_size();
-          if (r_fd.is_error()) {
-            process_fatal_error(PSLICE() << "Failed to get log size: " << r_fd.error() << " in " << __FILE__ << " at "
-                                         << __LINE__ << '\n');
-          }
-          size = r_size.move_as_ok();
-        };
-        auto append = [&](CSlice slice) {
-          if (size > rotate_threshold) {
-            auto status = rename(path, PSLICE() << path << ".old");
-            if (status.is_error()) {
-              process_fatal_error(PSLICE() << status << " in " << __FILE__ << " at " << __LINE__ << '\n');
-            }
-            after_rotation();
-          }
-          while (!slice.empty()) {
-            if (redirect_stderr) {
-              while (has_log_guard()) {
-                // spin
-              }
-            }
-            auto r_size = fd.write(slice);
-            if (r_size.is_error()) {
-              process_fatal_error(PSLICE() << r_size.error() << " in " << __FILE__ << " at " << __LINE__ << '\n');
-            }
-            auto written = r_size.ok();
-            size += static_cast<int64>(written);
-            slice.remove_prefix(written);
-          }
-        };
-
-        while (true) {
-          int ready_count = queue->reader_wait_nonblock();
-          if (ready_count == 0) {
-            queue->reader_get_event_fd().wait(1000);
-            continue;
-          }
-          bool need_close = false;
-          while (ready_count-- > 0) {
-            Query query = queue->reader_get_unsafe();
-            switch (query.type_) {
-              case Query::Type::Log:
-                append(query.data_);
-                break;
-              case Query::Type::AfterRotation:
-                after_rotation();
-                break;
-              case Query::Type::Close:
-                need_close = true;
-                break;
-              default:
-                process_fatal_error("Invalid query type in AsyncFileLog");
-            }
-          }
-          queue->reader_flush();
-
-          if (need_close) {
-            fd.close();
-            break;
-          }
-        }
-      });
-
-  return Status::OK();
-}
-
-AsyncFileLog::~AsyncFileLog() {
-  if (queue_ == nullptr) {
-    return;
-  }
-  Query query;
-  query.type_ = Query::Type::Close;
-  queue_->writer_put(std::move(query));
-  logging_thread_.join();
-}
-
-vector<string> AsyncFileLog::get_file_paths() {
-  vector<string> result;
-  if (!path_.empty()) {
-    result.push_back(path_);
-    result.push_back(PSTRING() << path_ << ".old");
-  }
-  return result;
-}
-
-void AsyncFileLog::after_rotation() {
-  Query query;
-  query.type_ = Query::Type::AfterRotation;
-  if (queue_ == nullptr) {
-    process_fatal_error("AsyncFileLog is not inited");
-  }
-  queue_->writer_put(std::move(query));
-}
-
-void AsyncFileLog::do_append(int log_level, CSlice slice) {
-  Query query;
-  query.data_ = slice.str();
-  if (queue_ == nullptr) {
-    process_fatal_error("AsyncFileLog is not inited");
-  }
-  queue_->writer_put(std::move(query));
-  if (log_level == VERBOSITY_NAME(FATAL)) {
-    // it is not thread-safe to join logging_thread_ there, so just wait for the log line to be printed
-    auto end_time = Time::now() + 1.0;
-    while (!queue_->is_empty() && Time::now() < end_time) {
-      usleep_for(1000);
-    }
-    usleep_for(5000);  // allow some time for the log line to be actually printed
-  }
-}
-
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/AsyncFileLog.h b/third-party/td/td/tdutils/td/utils/AsyncFileLog.h
deleted file mode 100644
index 664b36f14a..0000000000
--- a/third-party/td/td/tdutils/td/utils/AsyncFileLog.h
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/MpscPollableQueue.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-#if !TD_THREAD_UNSUPPORTED
-
-class AsyncFileLog final : public LogInterface {
- public:
-  AsyncFileLog() = default;
-  AsyncFileLog(const AsyncFileLog &) = delete;
-  AsyncFileLog &operator=(const AsyncFileLog &) = delete;
-  AsyncFileLog(AsyncFileLog &&) = delete;
-  AsyncFileLog &operator=(AsyncFileLog &&) = delete;
-  ~AsyncFileLog();
-
-  Status init(string path, int64 rotate_threshold, bool redirect_stderr = true);
-
- private:
-  struct Query {
-    enum class Type : int32 { Log, AfterRotation, Close };
-    Type type_ = Type::Log;
-    string data_;
-  };
-
-  string path_;
-  unique_ptr<MpscPollableQueue<Query>> queue_;
-  thread logging_thread_;
-
-  vector<string> get_file_paths() final;
-
-  void after_rotation() final;
-
-  void do_append(int log_level, CSlice slice) final;
-};
-
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/AtomicRead.h b/third-party/td/td/tdutils/td/utils/AtomicRead.h
deleted file mode 100644
index 8412e45500..0000000000
--- a/third-party/td/td/tdutils/td/utils/AtomicRead.h
+++ /dev/null
@@ -1,89 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/type_traits.h"
-
-#include <atomic>
-#include <cstring>
-#include <memory>
-
-namespace td {
-
-template <class T>
-class AtomicRead {
- public:
-  void read(T &dest) const {
-    uint32 counter = 0;
-    auto wait = [&] {
-      counter++;
-      const int wait_each_count = 4;
-      if (counter % wait_each_count == 0) {
-        usleep_for(1);
-      }
-    };
-
-    while (true) {
-      static_assert(TD_IS_TRIVIALLY_COPYABLE(T), "T must be trivially copyable");
-      auto version_before = version.load();
-      if (version_before % 2 == 0) {
-        std::memcpy(&dest, &value, sizeof(dest));
-        auto version_after = version.load();
-        if (version_before == version_after) {
-          break;
-        }
-      }
-      wait();
-    }
-  }
-
-  struct Write {
-    explicit Write(AtomicRead *read) {
-      read->do_lock();
-      ptr.reset(read);
-    }
-    struct Destructor {
-      void operator()(AtomicRead *read) const {
-        read->do_unlock();
-      }
-    };
-    T &operator*() {
-      return value();
-    }
-    T *operator->() {
-      return &value();
-    }
-    T &value() {
-      CHECK(ptr);
-      return ptr->value;
-    }
-
-   private:
-    std::unique_ptr<AtomicRead, Destructor> ptr;
-  };
-
-  Write lock() {
-    return Write(this);
-  }
-
- private:
-  std::atomic<uint64> version{0};
-  T value;
-
-  void do_lock() {
-    bool is_locked = ++version % 2 == 1;
-    CHECK(is_locked);
-  }
-  void do_unlock() {
-    bool is_unlocked = ++version % 2 == 0;
-    CHECK(is_unlocked);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/BigNum.cpp b/third-party/td/td/tdutils/td/utils/BigNum.cpp
deleted file mode 100644
index b8c1290e75..0000000000
--- a/third-party/td/td/tdutils/td/utils/BigNum.cpp
+++ /dev/null
@@ -1,321 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/BigNum.h"
-
-char disable_linker_warning_about_empty_file_bignum_cpp TD_UNUSED;
-
-#if TD_HAVE_OPENSSL
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <openssl/bn.h>
-#include <openssl/crypto.h>
-
-#include <algorithm>
-
-namespace td {
-
-class BigNumContext::Impl {
- public:
-  BN_CTX *big_num_context;
-
-  Impl() : big_num_context(BN_CTX_new()) {
-    LOG_IF(FATAL, big_num_context == nullptr);
-  }
-  Impl(const Impl &) = delete;
-  Impl &operator=(const Impl &) = delete;
-  Impl(Impl &&) = delete;
-  Impl &operator=(Impl &&) = delete;
-  ~Impl() {
-    BN_CTX_free(big_num_context);
-  }
-};
-
-BigNumContext::BigNumContext() : impl_(make_unique<Impl>()) {
-}
-
-BigNumContext::BigNumContext(BigNumContext &&) noexcept = default;
-BigNumContext &BigNumContext::operator=(BigNumContext &&) noexcept = default;
-BigNumContext::~BigNumContext() = default;
-
-class BigNum::Impl {
- public:
-  BIGNUM *big_num;
-
-  Impl() : Impl(BN_new()) {
-  }
-  explicit Impl(BIGNUM *big_num) : big_num(big_num) {
-    LOG_IF(FATAL, big_num == nullptr);
-  }
-  Impl(const Impl &) = delete;
-  Impl &operator=(const Impl &) = delete;
-  Impl(Impl &&) = delete;
-  Impl &operator=(Impl &&) = delete;
-  ~Impl() {
-    BN_clear_free(big_num);
-  }
-};
-
-BigNum::BigNum() : impl_(make_unique<Impl>()) {
-}
-
-BigNum::BigNum(const BigNum &other) : BigNum() {
-  *this = other;
-}
-
-BigNum &BigNum::operator=(const BigNum &other) {
-  if (this == &other) {
-    return *this;
-  }
-  CHECK(impl_ != nullptr);
-  CHECK(other.impl_ != nullptr);
-  BIGNUM *result = BN_copy(impl_->big_num, other.impl_->big_num);
-  LOG_IF(FATAL, result == nullptr);
-  return *this;
-}
-
-BigNum::BigNum(BigNum &&) noexcept = default;
-BigNum &BigNum::operator=(BigNum &&) noexcept = default;
-BigNum::~BigNum() = default;
-
-BigNum BigNum::from_binary(Slice str) {
-  return BigNum(make_unique<Impl>(BN_bin2bn(str.ubegin(), narrow_cast<int>(str.size()), nullptr)));
-}
-
-BigNum BigNum::from_le_binary(Slice str) {
-#if defined(OPENSSL_IS_BORINGSSL)
-  return BigNum(make_unique<Impl>(BN_le2bn(str.ubegin(), narrow_cast<int>(str.size()), nullptr)));
-#elif OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
-  return BigNum(make_unique<Impl>(BN_lebin2bn(str.ubegin(), narrow_cast<int>(str.size()), nullptr)));
-#else
-  string str_copy = str.str();
-  std::reverse(str_copy.begin(), str_copy.end());
-  return from_binary(str_copy);
-#endif
-}
-
-Result<BigNum> BigNum::from_decimal(CSlice str) {
-  BigNum result;
-  int res = BN_dec2bn(&result.impl_->big_num, str.c_str());
-  if (res == 0 || static_cast<size_t>(res) != str.size()) {
-    return Status::Error(PSLICE() << "Failed to parse \"" << str << "\" as BigNum");
-  }
-  return result;
-}
-
-Result<BigNum> BigNum::from_hex(CSlice str) {
-  BigNum result;
-  int res = BN_hex2bn(&result.impl_->big_num, str.c_str());
-  if (res == 0 || static_cast<size_t>(res) != str.size()) {
-    return Status::Error(PSLICE() << "Failed to parse \"" << str << "\" as hexadecimal BigNum");
-  }
-  return result;
-}
-
-BigNum BigNum::from_raw(void *openssl_big_num) {
-  return BigNum(make_unique<Impl>(static_cast<BIGNUM *>(openssl_big_num)));
-}
-
-BigNum::BigNum(unique_ptr<Impl> &&impl) : impl_(std::move(impl)) {
-}
-
-int BigNum::get_num_bits() const {
-  return BN_num_bits(impl_->big_num);
-}
-
-int BigNum::get_num_bytes() const {
-  return BN_num_bytes(impl_->big_num);
-}
-
-void BigNum::set_bit(int num) {
-  int result = BN_set_bit(impl_->big_num, num);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::clear_bit(int num) {
-  int result = BN_clear_bit(impl_->big_num, num);
-  LOG_IF(FATAL, result != 1);
-}
-
-bool BigNum::is_bit_set(int num) const {
-  return BN_is_bit_set(impl_->big_num, num) != 0;
-}
-
-bool BigNum::is_prime(BigNumContext &context) const {
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  int result = BN_check_prime(impl_->big_num, context.impl_->big_num_context, nullptr);
-#else
-  int result =
-      BN_is_prime_ex(impl_->big_num, get_num_bits() > 2048 ? 128 : 64, context.impl_->big_num_context, nullptr);
-#endif
-  LOG_IF(FATAL, result == -1);
-  return result == 1;
-}
-
-void BigNum::operator+=(uint32 value) {
-  int result = BN_add_word(impl_->big_num, value);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::operator-=(uint32 value) {
-  int result = BN_sub_word(impl_->big_num, value);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::operator*=(uint32 value) {
-  int result = BN_mul_word(impl_->big_num, value);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::operator/=(uint32 value) {
-  BN_ULONG result = BN_div_word(impl_->big_num, value);
-  LOG_IF(FATAL, result == static_cast<BN_ULONG>(-1));
-}
-
-uint32 BigNum::operator%(uint32 value) const {
-  BN_ULONG result = BN_mod_word(impl_->big_num, value);
-  LOG_IF(FATAL, result == static_cast<BN_ULONG>(-1));
-  return narrow_cast<uint32>(result);
-}
-
-void BigNum::set_value(uint32 new_value) {
-  if (new_value == 0) {
-    BN_zero(impl_->big_num);
-  } else {
-    int result = BN_set_word(impl_->big_num, new_value);
-    LOG_IF(FATAL, result != 1);
-  }
-}
-
-BigNum BigNum::clone() const {
-  BIGNUM *result = BN_dup(impl_->big_num);
-  LOG_IF(FATAL, result == nullptr);
-  return BigNum(make_unique<Impl>(result));
-}
-
-string BigNum::to_binary(int exact_size) const {
-  int num_size = get_num_bytes();
-  if (exact_size == -1) {
-    exact_size = num_size;
-  } else {
-    CHECK(exact_size >= num_size);
-  }
-  string res(exact_size, '\0');
-  BN_bn2bin(impl_->big_num, MutableSlice(res).ubegin() + (exact_size - num_size));
-  return res;
-}
-
-string BigNum::to_le_binary(int exact_size) const {
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER) || defined(OPENSSL_IS_BORINGSSL)
-  int num_size = get_num_bytes();
-  if (exact_size == -1) {
-    exact_size = num_size;
-  } else {
-    CHECK(exact_size >= num_size);
-  }
-  string result(exact_size, '\0');
-#if defined(OPENSSL_IS_BORINGSSL)
-  BN_bn2le_padded(MutableSlice(result).ubegin(), exact_size, impl_->big_num);
-#else
-  BN_bn2lebinpad(impl_->big_num, MutableSlice(result).ubegin(), exact_size);
-#endif
-  return result;
-#else
-  string result = to_binary(exact_size);
-  std::reverse(result.begin(), result.end());
-  return result;
-#endif
-}
-
-string BigNum::to_decimal() const {
-  char *result = BN_bn2dec(impl_->big_num);
-  CHECK(result != nullptr);
-  string res(result);
-  OPENSSL_free(result);
-  return res;
-}
-
-void BigNum::random(BigNum &r, int bits, int top, int bottom) {
-  int result = BN_rand(r.impl_->big_num, bits, top, bottom);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::add(BigNum &r, const BigNum &a, const BigNum &b) {
-  int result = BN_add(r.impl_->big_num, a.impl_->big_num, b.impl_->big_num);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::sub(BigNum &r, const BigNum &a, const BigNum &b) {
-  CHECK(r.impl_->big_num != a.impl_->big_num);
-  CHECK(r.impl_->big_num != b.impl_->big_num);
-  int result = BN_sub(r.impl_->big_num, a.impl_->big_num, b.impl_->big_num);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::mul(BigNum &r, BigNum &a, BigNum &b, BigNumContext &context) {
-  int result = BN_mul(r.impl_->big_num, a.impl_->big_num, b.impl_->big_num, context.impl_->big_num_context);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::mod_add(BigNum &r, BigNum &a, BigNum &b, const BigNum &m, BigNumContext &context) {
-  int result = BN_mod_add(r.impl_->big_num, a.impl_->big_num, b.impl_->big_num, m.impl_->big_num,
-                          context.impl_->big_num_context);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::mod_sub(BigNum &r, BigNum &a, BigNum &b, const BigNum &m, BigNumContext &context) {
-  int result = BN_mod_sub(r.impl_->big_num, a.impl_->big_num, b.impl_->big_num, m.impl_->big_num,
-                          context.impl_->big_num_context);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::mod_mul(BigNum &r, BigNum &a, BigNum &b, const BigNum &m, BigNumContext &context) {
-  int result = BN_mod_mul(r.impl_->big_num, a.impl_->big_num, b.impl_->big_num, m.impl_->big_num,
-                          context.impl_->big_num_context);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::mod_inverse(BigNum &r, BigNum &a, const BigNum &m, BigNumContext &context) {
-  auto result = BN_mod_inverse(r.impl_->big_num, a.impl_->big_num, m.impl_->big_num, context.impl_->big_num_context);
-  LOG_IF(FATAL, result != r.impl_->big_num);
-}
-
-void BigNum::div(BigNum *quotient, BigNum *remainder, const BigNum &dividend, const BigNum &divisor,
-                 BigNumContext &context) {
-  auto q = quotient == nullptr ? nullptr : quotient->impl_->big_num;
-  auto r = remainder == nullptr ? nullptr : remainder->impl_->big_num;
-  if (q == nullptr && r == nullptr) {
-    return;
-  }
-
-  auto result = BN_div(q, r, dividend.impl_->big_num, divisor.impl_->big_num, context.impl_->big_num_context);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::mod_exp(BigNum &r, const BigNum &a, const BigNum &p, const BigNum &m, BigNumContext &context) {
-  int result = BN_mod_exp(r.impl_->big_num, a.impl_->big_num, p.impl_->big_num, m.impl_->big_num,
-                          context.impl_->big_num_context);
-  LOG_IF(FATAL, result != 1);
-}
-
-void BigNum::gcd(BigNum &r, BigNum &a, BigNum &b, BigNumContext &context) {
-  int result = BN_gcd(r.impl_->big_num, a.impl_->big_num, b.impl_->big_num, context.impl_->big_num_context);
-  LOG_IF(FATAL, result != 1);
-}
-
-int BigNum::compare(const BigNum &a, const BigNum &b) {
-  return BN_cmp(a.impl_->big_num, b.impl_->big_num);
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const BigNum &bn) {
-  return sb << bn.to_decimal();
-}
-
-}  // namespace td
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/BigNum.h b/third-party/td/td/tdutils/td/utils/BigNum.h
deleted file mode 100644
index 6967d87ec6..0000000000
--- a/third-party/td/td/tdutils/td/utils/BigNum.h
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#if TD_HAVE_OPENSSL
-
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class BigNumContext {
- public:
-  BigNumContext();
-  BigNumContext(const BigNumContext &) = delete;
-  BigNumContext &operator=(const BigNumContext &) = delete;
-  BigNumContext(BigNumContext &&other) noexcept;
-  BigNumContext &operator=(BigNumContext &&other) noexcept;
-  ~BigNumContext();
-
- private:
-  class Impl;
-  unique_ptr<Impl> impl_;
-
-  friend class BigNum;
-};
-
-class BigNum {
- public:
-  BigNum();
-  BigNum(const BigNum &other);
-  BigNum &operator=(const BigNum &other);
-  BigNum(BigNum &&other) noexcept;
-  BigNum &operator=(BigNum &&other) noexcept;
-  ~BigNum();
-
-  static BigNum from_binary(Slice str);
-
-  static BigNum from_le_binary(Slice str);
-
-  static Result<BigNum> from_decimal(CSlice str);
-
-  static Result<BigNum> from_hex(CSlice str);
-
-  static BigNum from_raw(void *openssl_big_num);
-
-  void set_value(uint32 new_value);
-
-  int get_num_bits() const;
-
-  int get_num_bytes() const;
-
-  void set_bit(int num);
-
-  void clear_bit(int num);
-
-  bool is_bit_set(int num) const;
-
-  bool is_prime(BigNumContext &context) const;
-
-  BigNum clone() const;
-
-  string to_binary(int exact_size = -1) const;
-
-  string to_le_binary(int exact_size = -1) const;
-
-  string to_decimal() const;
-
-  void operator+=(uint32 value);
-
-  void operator-=(uint32 value);
-
-  void operator*=(uint32 value);
-
-  void operator/=(uint32 value);
-
-  uint32 operator%(uint32 value) const;
-
-  static void random(BigNum &r, int bits, int top, int bottom);
-
-  static void add(BigNum &r, const BigNum &a, const BigNum &b);
-
-  static void sub(BigNum &r, const BigNum &a, const BigNum &b);
-
-  static void mul(BigNum &r, BigNum &a, BigNum &b, BigNumContext &context);
-
-  static void mod_add(BigNum &r, BigNum &a, BigNum &b, const BigNum &m, BigNumContext &context);
-
-  static void mod_sub(BigNum &r, BigNum &a, BigNum &b, const BigNum &m, BigNumContext &context);
-
-  static void mod_mul(BigNum &r, BigNum &a, BigNum &b, const BigNum &m, BigNumContext &context);
-
-  static void mod_inverse(BigNum &r, BigNum &a, const BigNum &m, BigNumContext &context);
-
-  static void div(BigNum *quotient, BigNum *remainder, const BigNum &dividend, const BigNum &divisor,
-                  BigNumContext &context);
-
-  static void mod_exp(BigNum &r, const BigNum &a, const BigNum &p, const BigNum &m, BigNumContext &context);
-
-  static void gcd(BigNum &r, BigNum &a, BigNum &b, BigNumContext &context);
-
-  static int compare(const BigNum &a, const BigNum &b);
-
- private:
-  class Impl;
-  unique_ptr<Impl> impl_;
-
-  explicit BigNum(unique_ptr<Impl> &&impl);
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const BigNum &bn);
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/BufferedFd.h b/third-party/td/td/tdutils/td/utils/BufferedFd.h
deleted file mode 100644
index 734842ddfb..0000000000
--- a/third-party/td/td/tdutils/td/utils/BufferedFd.h
+++ /dev/null
@@ -1,231 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/IoSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-
-#include <limits>
-
-namespace td {
-// just reads from given reader and writes to given writer
-template <class FdT>
-class BufferedFdBase : public FdT {
- public:
-  BufferedFdBase() = default;
-  explicit BufferedFdBase(FdT &&fd);
-  // TODO: make move constructor and move assignment safer
-
-  Result<size_t> flush_read(size_t max_read = std::numeric_limits<size_t>::max()) TD_WARN_UNUSED_RESULT;
-  Result<size_t> flush_write() TD_WARN_UNUSED_RESULT;
-
-  bool need_flush_write(size_t at_least = 0) {
-    return ready_for_flush_write() > at_least;
-  }
-  size_t ready_for_flush_write() {
-    CHECK(write_);
-    write_->sync_with_writer();
-    return write_->size();
-  }
-  void sync_with_poll() {
-    ::td::sync_with_poll(*this);
-  }
-  void set_input_writer(ChainBufferWriter *read) {
-    read_ = read;
-  }
-  void set_output_reader(ChainBufferReader *write) {
-    write_ = write;
-  }
-
- private:
-  ChainBufferWriter *read_ = nullptr;
-  ChainBufferReader *write_ = nullptr;
-};
-
-template <class FdT>
-class BufferedFd final : public BufferedFdBase<FdT> {
-  using Parent = BufferedFdBase<FdT>;
-  ChainBufferWriter input_writer_;
-  ChainBufferReader input_reader_;
-  ChainBufferWriter output_writer_;
-  ChainBufferReader output_reader_;
-  void init();
-  void init_ptr();
-
- public:
-  BufferedFd();
-  explicit BufferedFd(FdT &&fd);
-  BufferedFd(BufferedFd &&) noexcept;
-  BufferedFd &operator=(BufferedFd &&) noexcept;
-  BufferedFd(const BufferedFd &) = delete;
-  BufferedFd &operator=(const BufferedFd &) = delete;
-  ~BufferedFd();
-
-  void close();
-
-  size_t left_unread() const {
-    return input_reader_.size();
-  }
-  size_t left_unwritten() const {
-    return output_reader_.size();
-  }
-
-  Result<size_t> flush_read(size_t max_read = std::numeric_limits<size_t>::max()) TD_WARN_UNUSED_RESULT;
-  Result<size_t> flush_write() TD_WARN_UNUSED_RESULT;
-
-  // Yep, direct access to buffers. It is IO interface too.
-  ChainBufferReader &input_buffer();
-  ChainBufferWriter &output_buffer();
-};
-
-// IMPLEMENTATION
-
-/*** BufferedFd ***/
-template <class FdT>
-BufferedFdBase<FdT>::BufferedFdBase(FdT &&fd) : FdT(std::move(fd)) {
-}
-
-template <class FdT>
-Result<size_t> BufferedFdBase<FdT>::flush_read(size_t max_read) {
-  CHECK(read_);
-  size_t result = 0;
-  while (::td::can_read_local(*this) && max_read) {
-    MutableSlice slice = read_->prepare_append();
-    slice.truncate(max_read);
-    TRY_RESULT(x, FdT::read(slice));
-    slice.truncate(x);
-    read_->confirm_append(x);
-    result += x;
-    max_read -= x;
-  }
-  return result;
-}
-
-template <class FdT>
-Result<size_t> BufferedFdBase<FdT>::flush_write() {
-  // TODO: sync on demand
-  write_->sync_with_writer();
-  size_t result = 0;
-  while (!write_->empty() && ::td::can_write_local(*this)) {
-    constexpr size_t BUF_SIZE = 20;
-    IoSlice buf[BUF_SIZE];
-
-    auto it = write_->clone();
-    size_t buf_i;
-    for (buf_i = 0; buf_i < BUF_SIZE; buf_i++) {
-      Slice slice = it.prepare_read();
-      if (slice.empty()) {
-        break;
-      }
-      buf[buf_i] = as_io_slice(slice);
-      it.confirm_read(slice.size());
-    }
-    TRY_RESULT(x, FdT::writev(Span<IoSlice>(buf, buf_i)));
-    write_->advance(x);
-    result += x;
-  }
-  if (result == 0) {
-    if (write_->empty()) {
-      LOG(DEBUG) << "Nothing to write to " << FdT::get_poll_info().native_fd();
-    } else {
-      LOG(DEBUG) << "Can't flush write to " << FdT::get_poll_info().native_fd()
-                 << " with flags = " << FdT::get_poll_info().get_flags_local();
-    }
-  }
-  return result;
-}
-
-/*** BufferedFd ***/
-template <class FdT>
-void BufferedFd<FdT>::init() {
-  input_reader_ = input_writer_.extract_reader();
-  output_reader_ = output_writer_.extract_reader();
-  init_ptr();
-}
-
-template <class FdT>
-void BufferedFd<FdT>::init_ptr() {
-  this->set_input_writer(&input_writer_);
-  this->set_output_reader(&output_reader_);
-}
-
-template <class FdT>
-BufferedFd<FdT>::BufferedFd() {
-  init();
-}
-
-template <class FdT>
-BufferedFd<FdT>::BufferedFd(FdT &&fd) : Parent(std::move(fd)) {
-  init();
-}
-
-template <class FdT>
-BufferedFd<FdT>::BufferedFd(BufferedFd &&from) noexcept {
-  *this = std::move(from);
-}
-
-template <class FdT>
-BufferedFd<FdT> &BufferedFd<FdT>::operator=(BufferedFd &&from) noexcept {
-  FdT::operator=(std::move(static_cast<FdT &>(from)));
-  input_reader_ = std::move(from.input_reader_);
-  input_writer_ = std::move(from.input_writer_);
-  output_reader_ = std::move(from.output_reader_);
-  output_writer_ = std::move(from.output_writer_);
-  init_ptr();
-  return *this;
-}
-
-template <class FdT>
-BufferedFd<FdT>::~BufferedFd() {
-  close();
-}
-
-template <class FdT>
-void BufferedFd<FdT>::close() {
-  FdT::close();
-  // TODO: clear buffers
-}
-
-template <class FdT>
-Result<size_t> BufferedFd<FdT>::flush_read(size_t max_read) {
-  TRY_RESULT(result, Parent::flush_read(max_read));
-  if (result) {
-    // TODO: faster sync is possible if you owns writer.
-    input_reader_.sync_with_writer();
-    LOG(DEBUG) << "Flush read: +" << format::as_size(result) << tag("total", format::as_size(input_reader_.size()));
-  }
-  return result;
-}
-
-template <class FdT>
-Result<size_t> BufferedFd<FdT>::flush_write() {
-  TRY_RESULT(result, Parent::flush_write());
-  if (result) {
-    LOG(DEBUG) << "Flush write: +" << format::as_size(result) << tag("left", format::as_size(output_reader_.size()));
-  }
-  return result;
-}
-
-// Yep, direct access to buffers. It is IO interface too.
-template <class FdT>
-ChainBufferReader &BufferedFd<FdT>::input_buffer() {
-  return input_reader_;
-}
-
-template <class FdT>
-ChainBufferWriter &BufferedFd<FdT>::output_buffer() {
-  return output_writer_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/BufferedReader.h b/third-party/td/td/tdutils/td/utils/BufferedReader.h
deleted file mode 100644
index f4b4a78f46..0000000000
--- a/third-party/td/td/tdutils/td/utils/BufferedReader.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class BufferedReader {
- public:
-  explicit BufferedReader(FileFd &file, size_t buff_size = 8152)
-      : file_(file), buff_(buff_size), begin_pos_(0), end_pos_(0) {
-  }
-
-  Result<size_t> read(MutableSlice slice) TD_WARN_UNUSED_RESULT;
-
- private:
-  FileFd &file_;
-  vector<char> buff_;
-  size_t begin_pos_;
-  size_t end_pos_;
-};
-
-inline Result<size_t> BufferedReader::read(MutableSlice slice) {
-  size_t available = end_pos_ - begin_pos_;
-  if (available >= slice.size()) {
-    // have enough data in buffer
-    slice.copy_from({&buff_[begin_pos_], slice.size()});
-    begin_pos_ += slice.size();
-    return slice.size();
-  }
-
-  if (available) {
-    slice.copy_from({&buff_[begin_pos_], available});
-    begin_pos_ += available;
-    slice.remove_prefix(available);
-  }
-
-  if (slice.size() > buff_.size() / 2) {
-    TRY_RESULT(result, file_.read(slice));
-    return result + available;
-  }
-
-  TRY_RESULT(result, file_.read({&buff_[0], buff_.size()}));
-  begin_pos_ = 0;
-  end_pos_ = result;
-
-  size_t left = min(end_pos_, slice.size());
-  slice.copy_from({&buff_[0], left});
-  begin_pos_ = left;
-  return left + available;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/BufferedUdp.cpp b/third-party/td/td/tdutils/td/utils/BufferedUdp.cpp
deleted file mode 100644
index d1df558ff5..0000000000
--- a/third-party/td/td/tdutils/td/utils/BufferedUdp.cpp
+++ /dev/null
@@ -1,17 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/BufferedUdp.h"
-
-char disable_linker_warning_about_empty_file_buffered_udp_cpp TD_UNUSED;
-
-namespace td {
-
-#if TD_PORT_POSIX
-TD_THREAD_LOCAL detail::UdpReader *BufferedUdp::udp_reader_;
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/BufferedUdp.h b/third-party/td/td/tdutils/td/utils/BufferedUdp.h
deleted file mode 100644
index 4c030afae8..0000000000
--- a/third-party/td/td/tdutils/td/utils/BufferedUdp.h
+++ /dev/null
@@ -1,177 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/optional.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/port/UdpSocketFd.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-#include "td/utils/VectorQueue.h"
-
-#include <array>
-
-namespace td {
-
-#if TD_PORT_POSIX
-namespace detail {
-class UdpWriter {
- public:
-  static Status write_once(UdpSocketFd &fd, VectorQueue<UdpMessage> &queue) TD_WARN_UNUSED_RESULT {
-    std::array<UdpSocketFd::OutboundMessage, 16> messages;
-    auto to_send = queue.as_span();
-    size_t to_send_n = td::min(messages.size(), to_send.size());
-    to_send.truncate(to_send_n);
-    for (size_t i = 0; i < to_send_n; i++) {
-      messages[i].to = &to_send[i].address;
-      messages[i].data = to_send[i].data.as_slice();
-    }
-
-    size_t cnt;
-    auto status = fd.send_messages(Span<UdpSocketFd::OutboundMessage>(messages).truncate(to_send_n), cnt);
-    queue.pop_n(cnt);
-    return status;
-  }
-};
-
-class UdpReaderHelper {
- public:
-  void init_inbound_message(UdpSocketFd::InboundMessage &message) {
-    message.from = &message_.address;
-    message.error = &message_.error;
-    if (buffer_.size() < MAX_PACKET_SIZE) {
-      buffer_ = BufferSlice(RESERVED_SIZE);
-    }
-    CHECK(buffer_.size() >= MAX_PACKET_SIZE);
-    message.data = buffer_.as_mutable_slice().substr(0, MAX_PACKET_SIZE);
-  }
-
-  UdpMessage extract_udp_message(UdpSocketFd::InboundMessage &message) {
-    message_.data = buffer_.from_slice(message.data);
-    auto size = message_.data.size();
-    size = (size + 7) & ~7;
-    CHECK(size <= MAX_PACKET_SIZE);
-    buffer_.confirm_read(size);
-    return std::move(message_);
-  }
-
- private:
-  static constexpr size_t MAX_PACKET_SIZE = 2048;
-  static constexpr size_t RESERVED_SIZE = MAX_PACKET_SIZE * 8;
-  UdpMessage message_;
-  BufferSlice buffer_;
-};
-
-// One for thread is enough
-class UdpReader {
- public:
-  UdpReader() {
-    for (size_t i = 0; i < messages_.size(); i++) {
-      helpers_[i].init_inbound_message(messages_[i]);
-    }
-  }
-  Status read_once(UdpSocketFd &fd, VectorQueue<UdpMessage> &queue) TD_WARN_UNUSED_RESULT {
-    for (auto &message : messages_) {
-      CHECK(message.data.size() == 2048);
-    }
-    size_t cnt = 0;
-    auto status = fd.receive_messages(messages_, cnt);
-    for (size_t i = 0; i < cnt; i++) {
-      queue.push(helpers_[i].extract_udp_message(messages_[i]));
-      helpers_[i].init_inbound_message(messages_[i]);
-    }
-    for (size_t i = cnt; i < messages_.size(); i++) {
-      LOG_CHECK(messages_[i].data.size() == 2048)
-          << " cnt = " << cnt << " i = " << i << " size = " << messages_[i].data.size() << " status = " << status;
-    }
-    if (status.is_error() && !UdpSocketFd::is_critical_read_error(status)) {
-      queue.push(UdpMessage{{}, {}, std::move(status)});
-      status = Status::OK();
-    }
-    return status;
-  }
-
- private:
-  static constexpr size_t BUFFER_SIZE = 16;
-  std::array<UdpSocketFd::InboundMessage, BUFFER_SIZE> messages_;
-  std::array<UdpReaderHelper, BUFFER_SIZE> helpers_;
-};
-
-}  // namespace detail
-
-#endif
-
-class BufferedUdp final : public UdpSocketFd {
- public:
-  explicit BufferedUdp(UdpSocketFd fd) : UdpSocketFd(std::move(fd)) {
-  }
-
-#if TD_PORT_POSIX
-  void sync_with_poll() {
-    ::td::sync_with_poll(*this);
-  }
-  Result<optional<UdpMessage>> receive() {
-    if (input_.empty() && can_read_local(*this)) {
-      TRY_STATUS(flush_read_once());
-    }
-    if (input_.empty()) {
-      return optional<UdpMessage>();
-    }
-    return input_.pop();
-  }
-
-  void send(UdpMessage message) {
-    output_.push(std::move(message));
-  }
-
-  Status flush_send() {
-    Status status;
-    while (status.is_ok() && can_write_local(*this) && !output_.empty()) {
-      status = flush_send_once();
-    }
-    return status;
-  }
-#endif
-
-  UdpSocketFd move_as_udp_socket_fd() {
-    return std::move(as_fd());
-  }
-
-  UdpSocketFd &as_fd() {
-    return *static_cast<UdpSocketFd *>(this);
-  }
-
- private:
-#if TD_PORT_POSIX
-  VectorQueue<UdpMessage> input_;
-  VectorQueue<UdpMessage> output_;
-
-  VectorQueue<UdpMessage> &input() {
-    return input_;
-  }
-  VectorQueue<UdpMessage> &output() {
-    return output_;
-  }
-
-  Status flush_send_once() TD_WARN_UNUSED_RESULT {
-    return detail::UdpWriter::write_once(as_fd(), output_);
-  }
-
-  Status flush_read_once() TD_WARN_UNUSED_RESULT {
-    init_thread_local<detail::UdpReader>(udp_reader_);
-    return udp_reader_->read_once(as_fd(), input_);
-  }
-
-  static TD_THREAD_LOCAL detail::UdpReader *udp_reader_;
-#endif
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ByteFlow.h b/third-party/td/td/tdutils/td/utils/ByteFlow.h
deleted file mode 100644
index 83d63d8630..0000000000
--- a/third-party/td/td/tdutils/td/utils/ByteFlow.h
+++ /dev/null
@@ -1,389 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-#include <limits>
-
-namespace td {
-
-class ByteFlowInterface {
- public:
-  virtual void close_input(Status status) = 0;
-  virtual void wakeup() = 0;
-  virtual void set_parent(ByteFlowInterface &other) = 0;
-  virtual void set_input(ChainBufferReader *input) = 0;
-  virtual size_t get_need_size() = 0;
-  virtual size_t get_read_size() = 0;
-  virtual size_t get_write_size() = 0;
-  virtual void reset_need_size() {
-  }
-
-  ByteFlowInterface() = default;
-  ByteFlowInterface(const ByteFlowInterface &) = delete;
-  ByteFlowInterface &operator=(const ByteFlowInterface &) = delete;
-  ByteFlowInterface(ByteFlowInterface &&) = default;
-  ByteFlowInterface &operator=(ByteFlowInterface &&) = default;
-  virtual ~ByteFlowInterface() = default;
-};
-
-class ByteFlowBaseCommon : public ByteFlowInterface {
- public:
-  ByteFlowBaseCommon() = default;
-
-  void close_input(Status status) final {
-    if (status.is_error()) {
-      finish(std::move(status));
-    } else {
-      is_input_active_ = false;
-      wakeup();
-    }
-  }
-
-  void wakeup() final {
-    if (stop_flag_ || !input_) {
-      return;
-    }
-    input_->sync_with_writer();
-
-    if (waiting_flag_) {
-      if (!is_input_active_) {
-        finish(Status::OK());
-      }
-      return;
-    }
-    while (true) {
-      if (stop_flag_) {
-        break;
-      }
-
-      // update can_read
-      if (is_input_active_) {
-        auto read_size = get_read_size();
-        if (read_size < min(need_size_, options_.read_watermark.low)) {
-          can_read = false;
-        }
-        if (read_size >= max(need_size_, options_.read_watermark.high)) {
-          can_read = true;
-        }
-      } else {
-        // always can read when input is closed
-        can_read = true;
-      }
-
-      // update can_write
-      {
-        auto write_size = get_write_size();
-        if (write_size > options_.write_watermark.high) {
-          can_write = false;
-        }
-        if (write_size <= options_.write_watermark.low) {
-          can_write = true;
-        }
-      }
-
-      if (!can_read || !can_write) {
-        break;
-      }
-      need_size_ = 0;
-
-      if (!loop()) {
-        if (need_size_ <= get_read_size()) {
-          need_size_ = get_read_size() + 1;
-        }
-      }
-    }
-    on_output_updated();
-  }
-
-  size_t get_need_size() final {
-    return need_size_;
-  }
-  void reset_need_size() override {
-    need_size_ = 0;
-  }
-  size_t get_read_size() override {
-    input_->sync_with_writer();
-    return input_->size();
-  }
-  size_t get_write_size() override {
-    CHECK(parent_);
-    return parent_->get_read_size();
-  }
-
-  struct Watermark {
-    size_t low{std::numeric_limits<size_t>::max()};
-    size_t high{0};
-  };
-  struct Options {
-    Watermark write_watermark;
-    Watermark read_watermark;
-  };
-  void set_options(Options options) {
-    options_ = options;
-  }
-
-  virtual bool loop() = 0;
-
- protected:
-  bool waiting_flag_ = false;
-  ChainBufferReader *input_ = nullptr;
-  bool is_input_active_ = true;
-  size_t need_size_ = 0;
-  bool can_read{true};
-  bool can_write{true};
-  Options options_;
-
-  void finish(Status status) {
-    stop_flag_ = true;
-    need_size_ = 0;
-    if (parent_) {
-      parent_->close_input(std::move(status));
-      parent_ = nullptr;
-    }
-  }
-
-  void set_need_size(size_t need_size) {
-    need_size_ = need_size;
-  }
-
-  void on_output_updated() {
-    if (parent_) {
-      parent_->wakeup();
-    }
-  }
-  void consume_input() {
-    waiting_flag_ = true;
-    if (!is_input_active_) {
-      finish(Status::OK());
-    }
-  }
-
- private:
-  ByteFlowInterface *parent_ = nullptr;
-  bool stop_flag_ = false;
-  friend class ByteFlowBase;
-  friend class ByteFlowInplaceBase;
-};
-
-class ByteFlowBase : public ByteFlowBaseCommon {
- public:
-  ByteFlowBase() = default;
-
-  void set_input(ChainBufferReader *input) final {
-    input_ = input;
-  }
-  void set_parent(ByteFlowInterface &other) final {
-    parent_ = &other;
-    parent_->set_input(&output_reader_);
-  }
-  bool loop() override = 0;
-
-  // ChainBufferWriter &get_output() {
-  // return output_;
-  //}
-
- protected:
-  ChainBufferWriter output_;
-  ChainBufferReader output_reader_ = output_.extract_reader();
-};
-
-class ByteFlowInplaceBase : public ByteFlowBaseCommon {
- public:
-  ByteFlowInplaceBase() = default;
-
-  void set_input(ChainBufferReader *input) final {
-    input_ = input;
-    output_ = ChainBufferReader(input_->begin().clone(), input_->begin().clone(), false);
-  }
-  void set_parent(ByteFlowInterface &other) final {
-    parent_ = &other;
-    parent_->set_input(&output_);
-  }
-  bool loop() override = 0;
-
-  ChainBufferReader &get_output() {
-    return output_;
-  }
-
- protected:
-  ChainBufferReader output_;
-};
-
-inline ByteFlowInterface &operator>>(ByteFlowInterface &from, ByteFlowInterface &to) {
-  from.set_parent(to);
-  return to;
-}
-
-class ByteFlowSource final : public ByteFlowInterface {
- public:
-  ByteFlowSource() = default;
-  explicit ByteFlowSource(ChainBufferReader *buffer) : buffer_(buffer) {
-  }
-  ByteFlowSource(ByteFlowSource &&other) noexcept : buffer_(other.buffer_), parent_(other.parent_) {
-    other.buffer_ = nullptr;
-    other.parent_ = nullptr;
-  }
-  ByteFlowSource &operator=(ByteFlowSource &&other) noexcept {
-    buffer_ = other.buffer_;
-    parent_ = other.parent_;
-    other.buffer_ = nullptr;
-    other.parent_ = nullptr;
-    return *this;
-  }
-  ByteFlowSource(const ByteFlowSource &) = delete;
-  ByteFlowSource &operator=(const ByteFlowSource &) = delete;
-  ~ByteFlowSource() override = default;
-
-  void set_input(ChainBufferReader *) final {
-    UNREACHABLE();
-  }
-  void set_parent(ByteFlowInterface &parent) final {
-    CHECK(parent_ == nullptr);
-    parent_ = &parent;
-    parent_->set_input(buffer_);
-  }
-  void close_input(Status status) final {
-    CHECK(parent_);
-    parent_->close_input(std::move(status));
-    parent_ = nullptr;
-  }
-  void wakeup() final {
-    if (!parent_) {
-      return;
-    }
-    parent_->wakeup();
-  }
-  size_t get_need_size() final {
-    if (parent_ == nullptr) {
-      return 0;
-    }
-    return parent_->get_need_size();
-  }
-  size_t get_read_size() final {
-    UNREACHABLE();
-    return 0;
-  }
-  size_t get_write_size() final {
-    CHECK(parent_);
-    return parent_->get_read_size();
-  }
-
- private:
-  ChainBufferReader *buffer_ = nullptr;
-  ByteFlowInterface *parent_ = nullptr;
-};
-
-class ByteFlowSink final : public ByteFlowInterface {
- public:
-  void set_input(ChainBufferReader *input) final {
-    CHECK(buffer_ == nullptr);
-    buffer_ = input;
-  }
-  void set_parent(ByteFlowInterface & /*parent*/) final {
-    UNREACHABLE();
-  }
-  void close_input(Status status) final {
-    CHECK(active_);
-    active_ = false;
-    status_ = std::move(status);
-    buffer_->sync_with_writer();
-  }
-  void wakeup() final {
-    buffer_->sync_with_writer();
-  }
-  size_t get_need_size() final {
-    UNREACHABLE();
-    return 0;
-  }
-  size_t get_read_size() final {
-    buffer_->sync_with_writer();
-    return buffer_->size();
-  }
-  size_t get_write_size() final {
-    UNREACHABLE();
-    return 0;
-  }
-  bool is_ready() {
-    return !active_;
-  }
-  Status &status() {
-    return status_;
-  }
-  ChainBufferReader *result() {
-    CHECK(is_ready() && status().is_ok());
-    return buffer_;
-  }
-  ChainBufferReader *get_output() {
-    return buffer_;
-  }
-
- private:
-  bool active_ = true;
-  Status status_;
-  ChainBufferReader *buffer_ = nullptr;
-};
-
-class ByteFlowMoveSink final : public ByteFlowInterface {
- public:
-  ByteFlowMoveSink() = default;
-  explicit ByteFlowMoveSink(ChainBufferWriter *output) {
-    set_output(output);
-  }
-  void set_input(ChainBufferReader *input) final {
-    CHECK(!input_);
-    input_ = input;
-  }
-  void set_parent(ByteFlowInterface & /*parent*/) final {
-    UNREACHABLE();
-  }
-  void close_input(Status status) final {
-    CHECK(active_);
-    active_ = false;
-    status_ = std::move(status);
-    wakeup();
-  }
-  void wakeup() final {
-    input_->sync_with_writer();
-    output_->append(*input_);
-  }
-  size_t get_need_size() final {
-    UNREACHABLE();
-    return 0;
-  }
-  size_t get_read_size() final {
-    input_->sync_with_writer();
-    //TODO: must be input_->size() + output_->size()
-    return input_->size();
-  }
-  size_t get_write_size() final {
-    UNREACHABLE();
-    return 0;
-  }
-  void set_output(ChainBufferWriter *output) {
-    CHECK(!output_);
-    output_ = output;
-  }
-
-  bool is_ready() {
-    return !active_;
-  }
-  Status &status() {
-    return status_;
-  }
-
- private:
-  bool active_ = true;
-  Status status_;
-  ChainBufferReader *input_ = nullptr;
-  ChainBufferWriter *output_ = nullptr;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/CancellationToken.h b/third-party/td/td/tdutils/td/utils/CancellationToken.h
deleted file mode 100644
index 7667ff64a5..0000000000
--- a/third-party/td/td/tdutils/td/utils/CancellationToken.h
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <atomic>
-#include <memory>
-
-namespace td {
-
-namespace detail {
-struct RawCancellationToken {
-  std::atomic<bool> is_canceled_{false};
-};
-}  // namespace detail
-
-class CancellationToken {
- public:
-  explicit operator bool() const noexcept {
-    // empty CancellationToken is never canceled
-    if (!token_) {
-      return false;
-    }
-    return token_->is_canceled_.load(std::memory_order_acquire);
-  }
-  CancellationToken() = default;
-  explicit CancellationToken(std::shared_ptr<detail::RawCancellationToken> token) : token_(std::move(token)) {
-  }
-
- private:
-  std::shared_ptr<detail::RawCancellationToken> token_;
-};
-
-class CancellationTokenSource {
- public:
-  CancellationTokenSource() = default;
-  CancellationTokenSource(CancellationTokenSource &&other) noexcept : token_(std::move(other.token_)) {
-  }
-  CancellationTokenSource &operator=(CancellationTokenSource &&other) noexcept {
-    cancel();
-    token_ = std::move(other.token_);
-    return *this;
-  }
-  CancellationTokenSource(const CancellationTokenSource &) = delete;
-  CancellationTokenSource &operator=(const CancellationTokenSource &) = delete;
-  ~CancellationTokenSource() {
-    cancel();
-  }
-
-  CancellationToken get_cancellation_token() {
-    if (!token_) {
-      token_ = std::make_shared<detail::RawCancellationToken>();
-    }
-    return CancellationToken(token_);
-  }
-  void cancel() {
-    if (!token_) {
-      return;
-    }
-    token_->is_canceled_.store(true, std::memory_order_release);
-    token_.reset();
-  }
-
- private:
-  std::shared_ptr<detail::RawCancellationToken> token_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ChainScheduler.h b/third-party/td/td/tdutils/td/utils/ChainScheduler.h
deleted file mode 100644
index 9d6bce64fd..0000000000
--- a/third-party/td/td/tdutils/td/utils/ChainScheduler.h
+++ /dev/null
@@ -1,385 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/Container.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/List.h"
-#include "td/utils/logging.h"
-#include "td/utils/optional.h"
-#include "td/utils/Span.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/VectorQueue.h"
-
-#include <functional>
-
-namespace td {
-
-struct ChainSchedulerBase {
-  struct TaskWithParents {
-    uint64 task_id{};
-    vector<uint64> parents;
-  };
-};
-
-template <class ExtraT = Unit>
-class ChainScheduler final : public ChainSchedulerBase {
- public:
-  using TaskId = uint64;
-  using ChainId = uint64;
-
-  TaskId create_task(Span<ChainId> chains, ExtraT extra = {});
-
-  ExtraT *get_task_extra(TaskId task_id);
-
-  optional<TaskWithParents> start_next_task();
-
-  void pause_task(TaskId task_id);
-
-  void finish_task(TaskId task_id);
-
-  void reset_task(TaskId task_id);
-
-  template <class F>
-  void for_each(F &&f) {
-    tasks_.for_each([&f](uint64, Task &task) { f(task.extra); });
-  }
-
-  template <class F>
-  void for_each_dependent(TaskId task_id, F &&f) {
-    auto *task = tasks_.get(task_id);
-    CHECK(task != nullptr);
-    FlatHashSet<TaskId> visited;
-    bool check_for_collisions = task->chains.size() > 1;
-    for (TaskChainInfo &task_chain_info : task->chains) {
-      ChainInfo &chain_info = *task_chain_info.chain_info;
-      chain_info.chain.foreach_child(&task_chain_info.chain_node, [&](TaskId task_id, uint64) {
-        if (check_for_collisions && !visited.insert(task_id).second) {
-          return;
-        }
-        f(task_id);
-      });
-    }
-  }
-
- private:
-  struct ChainNode : ListNode {
-    TaskId task_id{};
-    uint64 generation{};
-  };
-
-  class Chain {
-   public:
-    void add_task(ChainNode *node) {
-      head_.put_back(node);
-    }
-
-    optional<TaskId> get_first() {
-      if (head_.empty()) {
-        return {};
-      }
-      return static_cast<ChainNode &>(*head_.get_next()).task_id;
-    }
-
-    optional<TaskId> get_child(ChainNode *chain_node) {
-      if (chain_node->get_next() == head_.end()) {
-        return {};
-      }
-      return static_cast<ChainNode &>(*chain_node->get_next()).task_id;
-    }
-    optional<ChainNode *> get_parent(ChainNode *chain_node) {
-      if (chain_node->get_prev() == head_.end()) {
-        return {};
-      }
-      return static_cast<ChainNode *>(chain_node->get_prev());
-    }
-
-    void finish_task(ChainNode *node) {
-      node->remove();
-    }
-
-    bool empty() const {
-      return head_.empty();
-    }
-
-    void foreach(std::function<void(TaskId, uint64)> f) const {
-      for (auto it = head_.begin(); it != head_.end(); it = it->get_next()) {
-        auto &node = static_cast<const ChainNode &>(*it);
-        f(node.task_id, node.generation);
-      }
-    }
-    void foreach_child(ListNode *start_node, std::function<void(TaskId, uint64)> f) const {
-      for (auto it = start_node; it != head_.end(); it = it->get_next()) {
-        auto &node = static_cast<const ChainNode &>(*it);
-        f(node.task_id, node.generation);
-      }
-    }
-
-   private:
-    ListNode head_;
-  };
-  struct ChainInfo {
-    Chain chain;
-    uint32 active_tasks{};
-    uint64 generation{1};
-  };
-  struct TaskChainInfo {
-    ChainNode chain_node;
-    ChainId chain_id{};
-    ChainInfo *chain_info{};
-  };
-  struct Task {
-    enum class State { Pending, Active, Paused } state{State::Pending};
-    vector<TaskChainInfo> chains;
-    ExtraT extra;
-  };
-  FlatHashMap<ChainId, unique_ptr<ChainInfo>> chains_;
-  FlatHashMap<ChainId, TaskId> limited_tasks_;
-  Container<Task> tasks_;
-  VectorQueue<TaskId> pending_tasks_;
-
-  ChainInfo &get_chain_info(ChainId chain_id) {
-    auto &chain = chains_[chain_id];
-    if (chain == nullptr) {
-      chain = make_unique<ChainInfo>();
-    }
-    return *chain;
-  }
-
-  void try_start_task(TaskId task_id) {
-    auto *task = tasks_.get(task_id);
-    CHECK(task != nullptr);
-    if (task->state != Task::State::Pending) {
-      return;
-    }
-    for (TaskChainInfo &task_chain_info : task->chains) {
-      auto o_parent = task_chain_info.chain_info->chain.get_parent(&task_chain_info.chain_node);
-
-      if (o_parent) {
-        if (o_parent.value()->generation != task_chain_info.chain_info->generation) {
-          return;
-        }
-      }
-
-      if (task_chain_info.chain_info->active_tasks >= 10) {
-        limited_tasks_[task_chain_info.chain_id] = task_id;
-        return;
-      }
-    }
-
-    do_start_task(task_id, task);
-  }
-
-  void do_start_task(TaskId task_id, Task *task) {
-    for (TaskChainInfo &task_chain_info : task->chains) {
-      ChainInfo &chain_info = get_chain_info(task_chain_info.chain_id);
-      chain_info.active_tasks++;
-      task_chain_info.chain_node.generation = chain_info.generation;
-    }
-    task->state = Task::State::Active;
-
-    pending_tasks_.push(task_id);
-    for_each_child(task, [&](TaskId task_id) { try_start_task(task_id); });
-  }
-
-  template <class F>
-  void for_each_child(Task *task, F &&f) {
-    for (TaskChainInfo &task_chain_info : task->chains) {
-      ChainInfo &chain_info = *task_chain_info.chain_info;
-      auto o_child = chain_info.chain.get_child(&task_chain_info.chain_node);
-      if (o_child) {
-        f(o_child.value());
-      }
-    }
-  }
-
-  void inactivate_task(TaskId task_id, bool failed) {
-    LOG(DEBUG) << "Inactivate " << task_id << " " << (failed ? "failed" : "finished");
-    auto *task = tasks_.get(task_id);
-    CHECK(task != nullptr);
-    bool was_active = task->state == Task::State::Active;
-    task->state = Task::State::Pending;
-    for (TaskChainInfo &task_chain_info : task->chains) {
-      ChainInfo &chain_info = *task_chain_info.chain_info;
-      if (was_active) {
-        chain_info.active_tasks--;
-      }
-      if (was_active && failed) {
-        chain_info.generation = td::max(chain_info.generation, task_chain_info.chain_node.generation + 1);
-      }
-
-      auto it = limited_tasks_.find(task_chain_info.chain_id);
-      if (it != limited_tasks_.end()) {
-        auto limited_task_id = it->second;
-        limited_tasks_.erase(it);
-        if (limited_task_id != task_id) {
-          try_start_task_later(limited_task_id);
-        }
-      }
-
-      auto o_first = chain_info.chain.get_first();
-      if (o_first) {
-        auto first_task_id = o_first.unwrap();
-        if (first_task_id != task_id) {
-          try_start_task_later(first_task_id);
-        }
-      }
-    }
-  }
-
-  void finish_chain_task(TaskChainInfo &task_chain_info) {
-    auto &chain = task_chain_info.chain_info->chain;
-    chain.finish_task(&task_chain_info.chain_node);
-    if (chain.empty()) {
-      chains_.erase(task_chain_info.chain_id);
-    }
-  }
-
-  vector<TaskId> to_start_;
-
-  void try_start_task_later(TaskId task_id) {
-    LOG(DEBUG) << "Start later " << task_id;
-    to_start_.push_back(task_id);
-  }
-
-  void flush_try_start_task() {
-    auto moved_to_start = std::move(to_start_);
-    for (auto task_id : moved_to_start) {
-      try_start_task(task_id);
-    }
-    CHECK(to_start_.empty());
-  }
-
-  template <class ExtraTT>
-  friend StringBuilder &operator<<(StringBuilder &sb, ChainScheduler<ExtraTT> &scheduler);
-};
-
-template <class ExtraT>
-typename ChainScheduler<ExtraT>::TaskId ChainScheduler<ExtraT>::create_task(Span<ChainId> chains, ExtraT extra) {
-  auto task_id = tasks_.create();
-  Task &task = *tasks_.get(task_id);
-  task.extra = std::move(extra);
-  task.chains = transform(chains, [&](ChainId chain_id) {
-    CHECK(chain_id != 0);
-    TaskChainInfo task_chain_info;
-    ChainInfo &chain_info = get_chain_info(chain_id);
-    task_chain_info.chain_id = chain_id;
-    task_chain_info.chain_info = &chain_info;
-    task_chain_info.chain_node.task_id = task_id;
-    task_chain_info.chain_node.generation = 0;
-    return task_chain_info;
-  });
-
-  for (TaskChainInfo &task_chain_info : task.chains) {
-    ChainInfo &chain_info = *task_chain_info.chain_info;
-    chain_info.chain.add_task(&task_chain_info.chain_node);
-  }
-
-  try_start_task(task_id);
-  return task_id;
-}
-
-// TODO: return reference
-template <class ExtraT>
-ExtraT *ChainScheduler<ExtraT>::get_task_extra(TaskId task_id) {  // may return nullptr
-  auto *task = tasks_.get(task_id);
-  if (task == nullptr) {
-    return nullptr;
-  }
-  return &task->extra;
-}
-
-template <class ExtraT>
-optional<ChainSchedulerBase::TaskWithParents> ChainScheduler<ExtraT>::start_next_task() {
-  if (pending_tasks_.empty()) {
-    return {};
-  }
-  auto task_id = pending_tasks_.pop();
-  TaskWithParents res;
-  res.task_id = task_id;
-  auto *task = tasks_.get(task_id);
-  CHECK(task != nullptr);
-  for (TaskChainInfo &task_chain_info : task->chains) {
-    Chain &chain = task_chain_info.chain_info->chain;
-    auto o_parent = chain.get_parent(&task_chain_info.chain_node);
-    if (o_parent) {
-      res.parents.push_back(o_parent.value()->task_id);
-    }
-  }
-  return res;
-}
-
-template <class ExtraT>
-void ChainScheduler<ExtraT>::finish_task(TaskId task_id) {
-  auto *task = tasks_.get(task_id);
-  CHECK(task != nullptr);
-  CHECK(to_start_.empty());
-
-  inactivate_task(task_id, false);
-
-  for_each_child(task, [&](TaskId task_id) { try_start_task_later(task_id); });
-
-  for (TaskChainInfo &task_chain_info : task->chains) {
-    finish_chain_task(task_chain_info);
-  }
-
-  tasks_.erase(task_id);
-  flush_try_start_task();
-}
-
-template <class ExtraT>
-void ChainScheduler<ExtraT>::reset_task(TaskId task_id) {
-  CHECK(to_start_.empty());
-  auto *task = tasks_.get(task_id);
-  CHECK(task != nullptr);
-  inactivate_task(task_id, true);
-  try_start_task_later(task_id);
-  flush_try_start_task();
-}
-
-template <class ExtraT>
-void ChainScheduler<ExtraT>::pause_task(TaskId task_id) {
-  auto *task = tasks_.get(task_id);
-  CHECK(task != nullptr);
-  inactivate_task(task_id, true);
-  task->state = Task::State::Paused;
-  flush_try_start_task();
-}
-
-template <class ExtraT>
-StringBuilder &operator<<(StringBuilder &sb, ChainScheduler<ExtraT> &scheduler) {
-  // 1 print chains
-  sb << '\n';
-  for (auto &it : scheduler.chains_) {
-    CHECK(it.second != nullptr);
-    sb << "ChainId{" << it.first << "}";
-    sb << " active_cnt = " << it.second->active_tasks;
-    sb << " g = " << it.second->generation;
-    sb << ':';
-    it.second->chain.foreach([&](typename ChainScheduler<ExtraT>::TaskId task_id, uint64 generation) {
-      sb << ' ' << *scheduler.get_task_extra(task_id) << ':' << generation;
-    });
-    sb << '\n';
-  }
-  scheduler.tasks_.for_each([&](uint64, typename ChainScheduler<ExtraT>::Task &task) {
-    sb << "Task: " << task.extra;
-    sb << " state = " << static_cast<int>(task.state);
-    for (auto &task_chain_info : task.chains) {
-      sb << " g = " << task_chain_info.chain_node.generation;
-      if (task_chain_info.chain_info->generation != task_chain_info.chain_node.generation) {
-        sb << " chain_g = " << task_chain_info.chain_info->generation;
-      }
-    }
-    sb << '\n';
-  });
-  return sb;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ChangesProcessor.h b/third-party/td/td/tdutils/td/utils/ChangesProcessor.h
deleted file mode 100644
index 5d322cfe53..0000000000
--- a/third-party/td/td/tdutils/td/utils/ChangesProcessor.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <utility>
-
-namespace td {
-
-// Process changes after they are finished in order of addition
-template <class DataT>
-class ChangesProcessor {
- public:
-  using Id = uint64;
-
-  void clear() {
-    offset_ += data_array_.size();
-    ready_i_ = 0;
-    data_array_.clear();
-  }
-
-  template <class FromDataT>
-  Id add(FromDataT &&data) {
-    auto res = offset_ + data_array_.size();
-    data_array_.emplace_back(std::forward<DataT>(data), false);
-    return static_cast<Id>(res);
-  }
-
-  template <class F>
-  void finish(Id token, F &&func) {
-    size_t pos = static_cast<size_t>(token) - offset_;
-    if (pos >= data_array_.size()) {
-      return;
-    }
-    data_array_[pos].second = true;
-    while (ready_i_ < data_array_.size() && data_array_[ready_i_].second) {
-      func(std::move(data_array_[ready_i_].first));
-      ready_i_++;
-    }
-    try_compactify();
-  }
-
- private:
-  size_t offset_ = 1;
-  size_t ready_i_ = 0;
-  std::vector<std::pair<DataT, bool>> data_array_;
-  void try_compactify() {
-    if (ready_i_ > 5 && ready_i_ * 2 > data_array_.size()) {
-      data_array_.erase(data_array_.begin(), data_array_.begin() + ready_i_);
-      offset_ += ready_i_;
-      ready_i_ = 0;
-    }
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Closure.h b/third-party/td/td/tdutils/td/utils/Closure.h
deleted file mode 100644
index eb47f66146..0000000000
--- a/third-party/td/td/tdutils/td/utils/Closure.h
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/invoke.h"
-
-#include <tuple>
-#include <type_traits>
-#include <utility>
-
-//
-// Essentially we have:
-// (ActorT::func, arg1, arg2, ..., argn)
-// We want to call:
-// actor->func(arg1, arg2, ..., argn)
-// And in some cases we would like to delay this call.
-//
-// First attempt would be
-// [a1=arg1, a2=arg2, ..., an=argn](ActorT *actor) {
-//   actor->func(a1, a2, ..., an)
-// }
-//
-// But there are some difficulties with elimitation on unnecessary copies.
-// We want to use move constructor when it is possible
-//
-// We may pass
-// Tmp. Temporary / rvalue reference
-// Var. Variable / reference
-// CnstRef. const reference
-//
-//
-// Function may expect
-// Val. Value
-// CnstRef. const reference
-// Ref. rvalue reverence / reference
-//
-// TODO:
-//    Immediate call / Delayed call
-// Tmp->Val       move / move->move
-// Tmp->CnstRef      + / move->+
-// Tmp->Ref          + / move->+
-// Var->Val       copy / copy->move
-// Var->CnstRef      + / copy->
-// Var->Ref          + / copy->+   // khm. It will complile, but won't work
-//
-// So I will use common idiom: forward references
-// If delay is needed, just std::forward data to temporary storage, and std::move them when call is executed.
-//
-//
-// create_immediate_closure(&ActorT::func, arg1, arg2, ..., argn).run(actor)
-
-namespace td {
-template <class ActorT, class FunctionT, class... ArgsT>
-class DelayedClosure;
-
-template <class ActorT, class FunctionT, class... ArgsT>
-class ImmediateClosure {
- public:
-  using Delayed = DelayedClosure<ActorT, FunctionT, ArgsT...>;
-  friend Delayed;
-  using ActorType = ActorT;
-
-  // no &&. just save references as references.
-  explicit ImmediateClosure(FunctionT func, ArgsT... args) : args(func, std::forward<ArgsT>(args)...) {
-  }
-
- private:
-  std::tuple<FunctionT, ArgsT...> args;
-
- public:
-  auto run(ActorT *actor) -> decltype(mem_call_tuple(actor, std::move(args))) {
-    return mem_call_tuple(actor, std::move(args));
-  }
-};
-
-template <class ActorT, class ResultT, class... DestArgsT, class... SrcArgsT>
-ImmediateClosure<ActorT, ResultT (ActorT::*)(DestArgsT...), SrcArgsT &&...> create_immediate_closure(
-    ResultT (ActorT::*func)(DestArgsT...), SrcArgsT &&...args) {
-  return ImmediateClosure<ActorT, ResultT (ActorT::*)(DestArgsT...), SrcArgsT &&...>(func,
-                                                                                     std::forward<SrcArgsT>(args)...);
-}
-
-template <class ActorT, class FunctionT, class... ArgsT>
-class DelayedClosure {
- public:
-  using ActorType = ActorT;
-
-  explicit DelayedClosure(ImmediateClosure<ActorT, FunctionT, ArgsT...> &&other) : args(std::move(other.args)) {
-  }
-
-  explicit DelayedClosure(FunctionT func, ArgsT... args) : args(func, std::forward<ArgsT>(args)...) {
-  }
-
-  template <class F>
-  void for_each(const F &f) {
-    tuple_for_each(args, f);
-  }
-
- private:
-  std::tuple<FunctionT, typename std::decay<ArgsT>::type...> args;
-
- public:
-  auto run(ActorT *actor) -> decltype(mem_call_tuple(actor, std::move(args))) {
-    return mem_call_tuple(actor, std::move(args));
-  }
-};
-
-template <class ActorT, class ResultT, class... DestArgsT, class... SrcArgsT>
-auto create_delayed_closure(ResultT (ActorT::*func)(DestArgsT...), SrcArgsT &&...args) {
-  return DelayedClosure<ActorT, ResultT (ActorT::*)(DestArgsT...), SrcArgsT &&...>(func,
-                                                                                   std::forward<SrcArgsT>(args)...);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/CombinedLog.h b/third-party/td/td/tdutils/td/utils/CombinedLog.h
deleted file mode 100644
index 052813874f..0000000000
--- a/third-party/td/td/tdutils/td/utils/CombinedLog.h
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class CombinedLog final : public LogInterface {
- public:
-  void set_first(LogInterface *first) {
-    first_ = first;
-  }
-
-  void set_second(LogInterface *second) {
-    second_ = second;
-  }
-
-  void set_first_verbosity_level(int new_verbosity_level) {
-    first_verbosity_level_ = new_verbosity_level;
-  }
-
-  void set_second_verbosity_level(int new_verbosity_level) {
-    second_verbosity_level_ = new_verbosity_level;
-  }
-
-  const LogInterface *get_first() const {
-    return first_;
-  }
-
-  const LogInterface *get_second() const {
-    return second_;
-  }
-
-  int get_first_verbosity_level() const {
-    return first_verbosity_level_;
-  }
-
-  int get_second_verbosity_level() const {
-    return second_verbosity_level_;
-  }
-
- private:
-  LogInterface *first_ = nullptr;
-  int first_verbosity_level_ = VERBOSITY_NAME(FATAL);
-  LogInterface *second_ = nullptr;
-  int second_verbosity_level_ = VERBOSITY_NAME(FATAL);
-
-  void do_append(int log_level, CSlice slice) final {
-    if (first_ && log_level <= first_verbosity_level_) {
-      first_->do_append(log_level, slice);
-    }
-    if (second_ && log_level <= second_verbosity_level_) {
-      second_->do_append(log_level, slice);
-    }
-  }
-
-  void after_rotation() final {
-    if (first_) {
-      first_->after_rotation();
-    }
-    if (second_) {
-      second_->after_rotation();
-    }
-  }
-
-  vector<string> get_file_paths() final {
-    vector<string> result;
-    if (first_) {
-      ::td::append(result, first_->get_file_paths());
-    }
-    if (second_) {
-      ::td::append(result, second_->get_file_paths());
-    }
-    return result;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ConcurrentHashTable.h b/third-party/td/td/tdutils/td/utils/ConcurrentHashTable.h
deleted file mode 100644
index b7bad15a77..0000000000
--- a/third-party/td/td/tdutils/td/utils/ConcurrentHashTable.h
+++ /dev/null
@@ -1,321 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HazardPointers.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/thread_local.h"
-
-#include <atomic>
-#include <condition_variable>
-#include <mutex>
-
-namespace td {
-
-// AtomicHashArray<KeyT, ValueT>
-// Building block for other concurrent hash maps
-//
-// Support one operation:
-//  template <class F>
-//  bool with_value(KeyT key, bool should_create, F &&func);
-//
-//  Finds slot for key, and call func(value)
-//  Creates slot if should_create is true.
-//  Returns true if func was called.
-//
-//  Concurrent calls with the same key may result in concurrent calls to func(value)
-//  It is responsibility of the caller to handle such races.
-//
-//  Key should already be random
-//  It is responsibility of the caller to provide unique random key.
-//  One may use injective hash function, or handle collisions in some other way.
-
-template <class KeyT, class ValueT>
-class AtomicHashArray {
- public:
-  explicit AtomicHashArray(size_t n) : nodes_(n) {
-  }
-  struct Node {
-    std::atomic<KeyT> key{KeyT{}};
-    ValueT value{};
-  };
-  size_t size() const {
-    return nodes_.size();
-  }
-  Node &node_at(size_t i) {
-    return nodes_[i];
-  }
-  static KeyT empty_key() {
-    return KeyT{};
-  }
-
-  template <class F>
-  bool with_value(KeyT key, bool should_create, F &&f) {
-    DCHECK(key != empty_key());
-    auto pos = static_cast<size_t>(key) % nodes_.size();
-    auto n = td::min(td::max(static_cast<size_t>(300), nodes_.size() / 16 + 2), nodes_.size());
-
-    for (size_t i = 0; i < n; i++) {
-      pos++;
-      if (pos >= nodes_.size()) {
-        pos = 0;
-      }
-      auto &node = nodes_[pos];
-      while (true) {
-        auto node_key = node.key.load(std::memory_order_acquire);
-        if (node_key == empty_key()) {
-          if (!should_create) {
-            return false;
-          }
-          KeyT expected_key = empty_key();
-          if (node.key.compare_exchange_strong(expected_key, key, std::memory_order_relaxed,
-                                               std::memory_order_relaxed)) {
-            f(node.value);
-            return true;
-          }
-        } else if (node_key == key) {
-          f(node.value);
-          return true;
-        } else {
-          break;
-        }
-      }
-    }
-    return false;
-  }
-
- private:
-  std::vector<Node> nodes_;
-};
-
-// Simple concurrent hash map with multiple limitations
-template <class KeyT, class ValueT>
-class ConcurrentHashMap {
-  using HashMap = AtomicHashArray<KeyT, std::atomic<ValueT>>;
-  static HazardPointers<HashMap> hp_;
-
- public:
-  explicit ConcurrentHashMap(size_t n = 32) {
-    n = 1;
-    hash_map_.store(make_unique<HashMap>(n).release());
-  }
-  ConcurrentHashMap(const ConcurrentHashMap &) = delete;
-  ConcurrentHashMap &operator=(const ConcurrentHashMap &) = delete;
-  ConcurrentHashMap(ConcurrentHashMap &&) = delete;
-  ConcurrentHashMap &operator=(ConcurrentHashMap &&) = delete;
-  ~ConcurrentHashMap() {
-    unique_ptr<HashMap>(hash_map_.load()).reset();
-  }
-
-  static std::string get_name() {
-    return "ConcurrentHashMap";
-  }
-
-  static KeyT empty_key() {
-    return KeyT{};
-  }
-  static ValueT empty_value() {
-    return ValueT{};
-  }
-  static ValueT migrate_value() {
-    return (ValueT)(1);  // c-style conversion because reinterpret_cast<int>(1) is CE in MSVC
-  }
-
-  ValueT insert(KeyT key, ValueT value) {
-    CHECK(key != empty_key());
-    CHECK(value != migrate_value());
-    typename HazardPointers<HashMap>::Holder holder(hp_, get_thread_id(), 0);
-    while (true) {
-      auto hash_map = holder.protect(hash_map_);
-      if (!hash_map) {
-        do_migrate(nullptr);
-        continue;
-      }
-
-      bool ok = false;
-      ValueT inserted_value;
-      hash_map->with_value(key, true, [&](auto &node_value) {
-        ValueT expected_value = this->empty_value();
-        if (node_value.compare_exchange_strong(expected_value, value, std::memory_order_release,
-                                               std::memory_order_acquire)) {
-          ok = true;
-          inserted_value = value;
-        } else {
-          if (expected_value == this->migrate_value()) {
-            ok = false;
-          } else {
-            ok = true;
-            inserted_value = expected_value;
-          }
-        }
-      });
-      if (ok) {
-        return inserted_value;
-      }
-      do_migrate(hash_map);
-    }
-  }
-
-  ValueT find(KeyT key, ValueT value) {
-    typename HazardPointers<HashMap>::Holder holder(hp_, get_thread_id(), 0);
-    while (true) {
-      auto hash_map = holder.protect(hash_map_);
-      if (!hash_map) {
-        do_migrate(nullptr);
-        continue;
-      }
-
-      bool has_value = hash_map->with_value(
-          key, false, [&](auto &node_value) { value = node_value.load(std::memory_order_acquire); });
-      if (!has_value || value != migrate_value()) {
-        return value;
-      }
-      do_migrate(hash_map);
-    }
-  }
-
-  template <class F>
-  void for_each(F &&f) {
-    auto hash_map = hash_map_.load();
-    CHECK(hash_map);
-    auto size = hash_map->size();
-    for (size_t i = 0; i < size; i++) {
-      auto &node = hash_map->node_at(i);
-      auto key = node.key.load(std::memory_order_relaxed);
-      auto value = node.value.load(std::memory_order_relaxed);
-
-      if (key != empty_key()) {
-        CHECK(value != migrate_value());
-        if (value != empty_value()) {
-          f(key, value);
-        }
-      }
-    }
-  }
-
- private:
-  // use no padding intentionally
-  std::atomic<HashMap *> hash_map_{nullptr};
-
-  std::mutex migrate_mutex_;
-  std::condition_variable migrate_cv_;
-
-  int migrate_cnt_{0};
-  int migrate_generation_{0};
-  HashMap *migrate_from_hash_map_{nullptr};
-  HashMap *migrate_to_hash_map_{nullptr};
-  struct Task {
-    size_t begin;
-    size_t end;
-    bool empty() const {
-      return begin >= end;
-    }
-    size_t size() const {
-      if (empty()) {
-        return 0;
-      }
-      return end - begin;
-    }
-  };
-
-  struct TaskCreator {
-    size_t chunk_size;
-    size_t size;
-    std::atomic<size_t> pos{0};
-    Task create() {
-      auto i = pos++;
-      auto begin = i * chunk_size;
-      auto end = begin + chunk_size;
-      if (end > size) {
-        end = size;
-      }
-      return {begin, end};
-    }
-  };
-  TaskCreator task_creator;
-
-  void do_migrate(HashMap *ptr) {
-    //LOG(ERROR) << "In do_migrate: " << ptr;
-    std::unique_lock<std::mutex> lock(migrate_mutex_);
-    if (hash_map_.load() != ptr) {
-      return;
-    }
-    init_migrate();
-    CHECK(!ptr || migrate_from_hash_map_ == ptr);
-    migrate_cnt_++;
-    auto migrate_generation = migrate_generation_;
-    lock.unlock();
-
-    run_migrate();
-
-    lock.lock();
-    migrate_cnt_--;
-    if (migrate_cnt_ == 0) {
-      finish_migrate();
-    }
-    migrate_cv_.wait(lock, [&] { return migrate_generation_ != migrate_generation; });
-  }
-
-  void finish_migrate() {
-    //LOG(ERROR) << "In finish_migrate";
-    hash_map_.store(migrate_to_hash_map_);
-    hp_.retire(get_thread_id(), migrate_from_hash_map_);
-    migrate_from_hash_map_ = nullptr;
-    migrate_to_hash_map_ = nullptr;
-    migrate_generation_++;
-    migrate_cv_.notify_all();
-  }
-
-  void init_migrate() {
-    if (migrate_from_hash_map_ != nullptr) {
-      return;
-    }
-    //LOG(ERROR) << "In init_migrate";
-    CHECK(migrate_cnt_ == 0);
-    migrate_generation_++;
-    migrate_from_hash_map_ = hash_map_.exchange(nullptr);
-    auto new_size = migrate_from_hash_map_->size() * 2;
-    migrate_to_hash_map_ = make_unique<HashMap>(new_size).release();
-    task_creator.chunk_size = 100;
-    task_creator.size = migrate_from_hash_map_->size();
-    task_creator.pos = 0;
-  }
-
-  void run_migrate() {
-    //LOG(ERROR) << "In run_migrate";
-    size_t cnt = 0;
-    while (true) {
-      auto task = task_creator.create();
-      cnt += task.size();
-      if (task.empty()) {
-        break;
-      }
-      run_task(task);
-    }
-    //LOG(ERROR) << "In run_migrate " << cnt;
-  }
-
-  void run_task(Task task) {
-    for (auto i = task.begin; i < task.end; i++) {
-      auto &node = migrate_from_hash_map_->node_at(i);
-      auto old_value = node.value.exchange(migrate_value(), std::memory_order_acq_rel);
-      if (old_value == 0) {
-        continue;
-      }
-      auto node_key = node.key.load(std::memory_order_relaxed);
-      auto ok = migrate_to_hash_map_->with_value(
-          node_key, true, [&](auto &node_value) { node_value.store(old_value, std::memory_order_relaxed); });
-      LOG_CHECK(ok) << "Migration overflow";
-    }
-  }
-};
-
-template <class KeyT, class ValueT>
-HazardPointers<typename ConcurrentHashMap<KeyT, ValueT>::HashMap> ConcurrentHashMap<KeyT, ValueT>::hp_(64);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Container.h b/third-party/td/td/tdutils/td/utils/Container.h
deleted file mode 100644
index dd98df2e88..0000000000
--- a/third-party/td/td/tdutils/td/utils/Container.h
+++ /dev/null
@@ -1,168 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <limits>
-
-namespace td {
-
-// 1. Allocates all objects in vector. (but vector never shrinks)
-// 2. Id is safe way to reach this object.
-// 3. All ids are unique.
-// 4. All ids are non-zero.
-template <class DataT>
-class Container {
- public:
-  using Id = uint64;
-  DataT *get(Id id) {
-    int32 slot_id = decode_id(id);
-    if (slot_id == -1) {
-      return nullptr;
-    }
-    return &slots_[slot_id].data;
-  }
-
-  const DataT *get(Id id) const {
-    int32 slot_id = decode_id(id);
-    if (slot_id == -1) {
-      return nullptr;
-    }
-    return &slots_[slot_id].data;
-  }
-
-  void erase(Id id) {
-    int32 slot_id = decode_id(id);
-    if (slot_id == -1) {
-      return;
-    }
-    release(slot_id);
-  }
-
-  DataT extract(Id id) {
-    int32 slot_id = decode_id(id);
-    CHECK(slot_id != -1);
-    auto res = std::move(slots_[slot_id].data);
-    release(slot_id);
-    return res;
-  }
-
-  Id create(DataT &&data = DataT(), uint8 type = 0) {
-    int32 id = store(std::move(data), type);
-    return encode_id(id);
-  }
-
-  Id reset_id(Id id) {
-    int32 slot_id = decode_id(id);
-    CHECK(slot_id != -1);
-    inc_generation(slot_id);
-    return encode_id(slot_id);
-  }
-
-  static uint8 type_from_id(Id id) {
-    return static_cast<uint8>(id);
-  }
-
-  vector<Id> ids() const {
-    vector<bool> is_bad(slots_.size(), false);
-    for (auto id : empty_slots_) {
-      is_bad[id] = true;
-    }
-    vector<Id> res;
-    for (size_t i = 0, n = slots_.size(); i < n; i++) {
-      if (!is_bad[i]) {
-        res.push_back(encode_id(static_cast<int32>(i)));
-      }
-    }
-    return res;
-  }
-
-  template <class F>
-  void for_each(const F &f) {
-    auto ids = this->ids();
-    for (auto id : ids) {
-      f(id, *get(id));
-    }
-  }
-
-  template <class F>
-  void for_each(const F &f) const {
-    auto ids = this->ids();
-    for (auto id : ids) {
-      f(id, *get(id));
-    }
-  }
-
-  size_t size() const {
-    CHECK(empty_slots_.size() <= slots_.size());
-    return slots_.size() - empty_slots_.size();
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
-  void clear() {
-    *this = Container<DataT>();
-  }
-
- private:
-  static constexpr uint32 GENERATION_STEP = 1 << 8;
-  static constexpr uint32 TYPE_MASK = (1 << 8) - 1;
-  struct Slot {
-    uint32 generation;
-    DataT data;
-  };
-  vector<Slot> slots_;
-  vector<int32> empty_slots_;
-
-  Id encode_id(int32 id) const {
-    return (static_cast<uint64>(id) << 32) | slots_[id].generation;
-  }
-
-  int32 decode_id(Id id) const {
-    auto slot_id = static_cast<int32>(id >> 32);
-    auto generation = static_cast<uint32>(id);
-    if (slot_id < 0 || slot_id >= static_cast<int32>(slots_.size())) {
-      return -1;
-    }
-    if (generation != slots_[slot_id].generation) {
-      return -1;
-    }
-    return slot_id;
-  }
-
-  int32 store(DataT &&data, uint8 type) {
-    int32 pos;
-    if (!empty_slots_.empty()) {
-      pos = empty_slots_.back();
-      empty_slots_.pop_back();
-      slots_[pos].data = std::move(data);
-      slots_[pos].generation ^= (slots_[pos].generation & TYPE_MASK) ^ type;
-    } else {
-      CHECK(slots_.size() <= static_cast<size_t>(std::numeric_limits<int32>::max()));
-      pos = static_cast<int32>(slots_.size());
-      slots_.push_back(Slot{GENERATION_STEP + type, std::move(data)});
-    }
-    return pos;
-  }
-
-  void release(int32 id) {
-    inc_generation(id);
-    slots_[id].data = DataT();
-    if (slots_[id].generation & ~TYPE_MASK) {  // generation overflow. Can't use this identifier anymore
-      empty_slots_.push_back(id);
-    }
-  }
-
-  void inc_generation(int32 id) {
-    slots_[id].generation += GENERATION_STEP;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Context.h b/third-party/td/td/tdutils/td/utils/Context.h
deleted file mode 100644
index d1dcc493bb..0000000000
--- a/third-party/td/td/tdutils/td/utils/Context.h
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/thread_local.h"
-
-namespace td {
-
-template <class Impl>
-class Context {
- public:
-  static Impl *get() {
-    return context_;
-  }
-  class Guard {
-   public:
-    explicit Guard(Impl *new_context) {
-      old_context_ = context_;
-      context_ = new_context;
-    }
-    ~Guard() {
-      context_ = old_context_;
-    }
-    Guard(const Guard &) = delete;
-    Guard &operator=(const Guard &) = delete;
-    Guard(Guard &&) = delete;
-    Guard &operator=(Guard &&) = delete;
-
-   private:
-    Impl *old_context_;
-  };
-
- private:
-  static TD_THREAD_LOCAL Impl *context_;
-};
-
-template <class Impl>
-TD_THREAD_LOCAL Impl *Context<Impl>::context_;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/DecTree.h b/third-party/td/td/tdutils/td/utils/DecTree.h
deleted file mode 100644
index a448da67a9..0000000000
--- a/third-party/td/td/tdutils/td/utils/DecTree.h
+++ /dev/null
@@ -1,216 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Random.h"
-
-#include <functional>
-#include <utility>
-
-namespace td {
-
-template <typename KeyType, typename ValueType, typename Compare = std::less<KeyType>>
-class DecTree {
-  struct Node {
-    unique_ptr<Node> left_;
-    unique_ptr<Node> right_;
-    size_t size_;
-    KeyType key_;
-    ValueType value_;
-    uint32 y_;
-
-    void relax() {
-      size_ = 1;
-      if (left_ != nullptr) {
-        size_ += left_->size_;
-      }
-      if (right_ != nullptr) {
-        size_ += right_->size_;
-      }
-    }
-
-    Node(KeyType key, ValueType value, uint32 y) : size_(1), key_(std::move(key)), value_(std::move(value)), y_(y) {
-    }
-  };
-  unique_ptr<Node> root_;
-
-  static unique_ptr<Node> create_node(KeyType key, ValueType value, uint32 y) {
-    return make_unique<Node>(std::move(key), std::move(value), y);
-  }
-
-  static unique_ptr<Node> insert_node(unique_ptr<Node> Tree, KeyType key, ValueType value, uint32 y) {
-    if (Tree == nullptr) {
-      return create_node(std::move(key), std::move(value), y);
-    }
-    if (Tree->y_ < y) {
-      auto P = split_node(std::move(Tree), key);
-      auto T = create_node(std::move(key), std::move(value), y);
-      T->left_ = std::move(P.first);
-      T->right_ = std::move(P.second);
-      T->relax();
-      return T;
-    }
-    if (Compare()(key, Tree->key_)) {
-      Tree->left_ = insert_node(std::move(Tree->left_), std::move(key), std::move(value), y);
-    } else if (Compare()(Tree->key_, key)) {
-      Tree->right_ = insert_node(std::move(Tree->right_), std::move(key), std::move(value), y);
-    } else {
-      // ?? assert
-    }
-    Tree->relax();
-    return Tree;
-  }
-
-  static unique_ptr<Node> remove_node(unique_ptr<Node> Tree, const KeyType &key) {
-    if (Tree == nullptr) {
-      // ?? assert
-      return nullptr;
-    }
-    if (Compare()(key, Tree->key_)) {
-      Tree->left_ = remove_node(std::move(Tree->left_), key);
-    } else if (Compare()(Tree->key_, key)) {
-      Tree->right_ = remove_node(std::move(Tree->right_), key);
-    } else {
-      Tree = merge_node(std::move(Tree->left_), std::move(Tree->right_));
-    }
-    if (Tree != nullptr) {
-      Tree->relax();
-    }
-    return Tree;
-  }
-
-  static ValueType *get_node(unique_ptr<Node> &Tree, const KeyType &key) {
-    if (Tree == nullptr) {
-      return nullptr;
-    }
-    if (Compare()(key, Tree->key_)) {
-      return get_node(Tree->left_, key);
-    } else if (Compare()(Tree->key_, key)) {
-      return get_node(Tree->right_, key);
-    } else {
-      return &Tree->value_;
-    }
-  }
-
-  static ValueType *get_node_by_idx(unique_ptr<Node> &Tree, size_t idx) {
-    CHECK(Tree != nullptr);
-    auto s = (Tree->left_ != nullptr) ? Tree->left_->size_ : 0;
-    if (idx < s) {
-      return get_node_by_idx(Tree->left_, idx);
-    } else if (idx == s) {
-      return &Tree->value_;
-    } else {
-      return get_node_by_idx(Tree->right_, idx - s - 1);
-    }
-  }
-
-  static const ValueType *get_node(const unique_ptr<Node> &Tree, const KeyType &key) {
-    if (Tree == nullptr) {
-      return nullptr;
-    }
-    if (Compare()(key, Tree->key_)) {
-      return get_node(Tree->left_, key);
-    } else if (Compare()(Tree->key_, key)) {
-      return get_node(Tree->right_, key);
-    } else {
-      return &Tree->value_;
-    }
-  }
-
-  static const ValueType *get_node_by_idx(const unique_ptr<Node> &Tree, size_t idx) {
-    CHECK(Tree != nullptr);
-    auto s = (Tree->left_ != nullptr) ? Tree->left_->size_ : 0;
-    if (idx < s) {
-      return get_node_by_idx(Tree->left_, idx);
-    } else if (idx == s) {
-      return &Tree->value_;
-    } else {
-      return get_node_by_idx(Tree->right_, idx - s - 1);
-    }
-  }
-
-  static std::pair<unique_ptr<Node>, unique_ptr<Node>> split_node(unique_ptr<Node> Tree, const KeyType &key) {
-    if (Tree == nullptr) {
-      return {nullptr, nullptr};
-    }
-    if (Compare()(key, Tree->key_)) {
-      auto P = split_node(std::move(Tree->left_), key);
-      Tree->left_ = std::move(P.second);
-      Tree->relax();
-      P.second = std::move(Tree);
-      return P;
-    } else {
-      auto P = split_node(std::move(Tree->right_), key);
-      Tree->right_ = std::move(P.first);
-      Tree->relax();
-      P.first = std::move(Tree);
-      return P;
-    }
-  }
-
-  static unique_ptr<Node> merge_node(unique_ptr<Node> left, unique_ptr<Node> right) {
-    if (left == nullptr) {
-      return right;
-    }
-    if (right == nullptr) {
-      return left;
-    }
-    if (left->y_ < right->y_) {
-      right->left_ = merge_node(std::move(left), std::move(right->left_));
-      right->relax();
-      return right;
-    } else {
-      left->right_ = merge_node(std::move(left->right_), std::move(right));
-      left->relax();
-      return left;
-    }
-  }
-
- public:
-  size_t size() const {
-    if (root_ == nullptr) {
-      return 0;
-    } else {
-      return root_->size_;
-    }
-  }
-  void insert(KeyType key, ValueType value) {
-    root_ = insert_node(std::move(root_), std::move(key), std::move(value), Random::fast_uint32());
-  }
-  void remove(const KeyType &key) {
-    root_ = remove_node(std::move(root_), key);
-  }
-  void reset() {
-    root_ = nullptr;
-  }
-  ValueType *get(const KeyType &key) {
-    return get_node(root_, key);
-  }
-  ValueType *get_random() {
-    if (size() == 0) {
-      return nullptr;
-    } else {
-      return get_node_by_idx(root_, Random::fast_uint32() % size());
-    }
-  }
-  const ValueType *get(const KeyType &key) const {
-    return get_node(root_, key);
-  }
-  const ValueType *get_random() const {
-    if (size() == 0) {
-      return nullptr;
-    } else {
-      return get_node_by_idx(root_, Random::fast_uint32() % size());
-    }
-  }
-  bool exists(const KeyType &key) const {
-    return get_node(root_, key) != nullptr;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Destructor.h b/third-party/td/td/tdutils/td/utils/Destructor.h
deleted file mode 100644
index 2afb6a8fa0..0000000000
--- a/third-party/td/td/tdutils/td/utils/Destructor.h
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-class Destructor {
- public:
-  Destructor() = default;
-  Destructor(const Destructor &) = delete;
-  Destructor &operator=(const Destructor &) = delete;
-  Destructor(Destructor &&) = default;
-  Destructor &operator=(Destructor &&) = default;
-  virtual ~Destructor() = default;
-};
-
-template <class F>
-class LambdaDestructor final : public Destructor {
- public:
-  explicit LambdaDestructor(F &&f) : f_(std::move(f)) {
-  }
-  LambdaDestructor(const LambdaDestructor &) = delete;
-  LambdaDestructor &operator=(const LambdaDestructor &) = delete;
-  LambdaDestructor(LambdaDestructor &&) = default;
-  LambdaDestructor &operator=(LambdaDestructor &&) = default;
-  ~LambdaDestructor() final {
-    f_();
-  }
-
- private:
-  F f_;
-};
-
-template <class F>
-auto create_destructor(F &&f) {
-  return make_unique<LambdaDestructor<F>>(std::forward<F>(f));
-}
-template <class F>
-auto create_shared_destructor(F &&f) {
-  return std::make_shared<LambdaDestructor<F>>(std::forward<F>(f));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Ed25519.cpp b/third-party/td/td/tdutils/td/utils/Ed25519.cpp
deleted file mode 100644
index ed52f6f051..0000000000
--- a/third-party/td/td/tdutils/td/utils/Ed25519.cpp
+++ /dev/null
@@ -1,347 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/Ed25519.h"
-
-#include "td/utils/BigNum.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-
-#if TD_HAVE_OPENSSL
-
-#include <openssl/evp.h>
-#include <openssl/opensslv.h>
-#include <openssl/pem.h>
-#include <openssl/x509.h>
-
-namespace td {
-
-Ed25519::PublicKey::PublicKey(SecureString octet_string) : octet_string_(std::move(octet_string)) {
-}
-
-SecureString Ed25519::PublicKey::as_octet_string() const {
-  return octet_string_.copy();
-}
-
-Ed25519::PrivateKey::PrivateKey(SecureString octet_string) : octet_string_(std::move(octet_string)) {
-}
-
-SecureString Ed25519::PrivateKey::as_octet_string() const {
-  return octet_string_.copy();
-}
-
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-namespace detail {
-
-static Result<SecureString> X25519_key_from_PKEY(EVP_PKEY *pkey, bool is_private) {
-  auto func = is_private ? &EVP_PKEY_get_raw_private_key : &EVP_PKEY_get_raw_public_key;
-  size_t len = 0;
-  if (func(pkey, nullptr, &len) == 0) {
-    return Status::Error("Failed to get raw key length");
-  }
-  CHECK(len == 32);
-
-  SecureString result(len);
-  if (func(pkey, result.as_mutable_slice().ubegin(), &len) == 0) {
-    return Status::Error("Failed to get raw key");
-  }
-  return std::move(result);
-}
-
-static EVP_PKEY *X25519_key_to_PKEY(Slice key, bool is_private) {
-  auto func = is_private ? &EVP_PKEY_new_raw_private_key : &EVP_PKEY_new_raw_public_key;
-  return func(EVP_PKEY_ED25519, nullptr, key.ubegin(), key.size());
-}
-
-static Result<SecureString> X25519_pem_from_PKEY(EVP_PKEY *pkey, bool is_private, Slice password) {
-  BIO *mem_bio = BIO_new(BIO_s_mem());
-  SCOPE_EXIT {
-    BIO_vfree(mem_bio);
-  };
-  if (is_private) {
-    PEM_write_bio_PrivateKey(mem_bio, pkey, EVP_aes_256_cbc(), const_cast<unsigned char *>(password.ubegin()),
-                             narrow_cast<int>(password.size()), nullptr, nullptr);
-  } else {
-    PEM_write_bio_PUBKEY(mem_bio, pkey);
-  }
-  char *data_ptr = nullptr;
-  auto data_size = BIO_get_mem_data(mem_bio, &data_ptr);
-  return std::string(data_ptr, data_size);
-}
-
-static int password_cb(char *buf, int size, int rwflag, void *u) {
-  auto &password = *reinterpret_cast<Slice *>(u);
-  auto password_size = narrow_cast<int>(password.size());
-  if (size < password_size) {
-    return -1;
-  }
-  if (rwflag == 0) {
-    MutableSlice(buf, size).copy_from(password);
-  }
-  return password_size;
-}
-
-static EVP_PKEY *X25519_pem_to_PKEY(Slice pem, Slice password) {
-  BIO *mem_bio = BIO_new_mem_buf(pem.ubegin(), narrow_cast<int>(pem.size()));
-  SCOPE_EXIT {
-    BIO_vfree(mem_bio);
-  };
-
-  return PEM_read_bio_PrivateKey(mem_bio, nullptr, password_cb, &password);
-}
-
-}  // namespace detail
-#endif
-
-Result<Ed25519::PrivateKey> Ed25519::generate_private_key() {
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-  EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(NID_ED25519, nullptr);
-  if (pctx == nullptr) {
-    return Status::Error("Can't create EVP_PKEY_CTX");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_CTX_free(pctx);
-  };
-
-  if (EVP_PKEY_keygen_init(pctx) <= 0) {
-    return Status::Error("Can't init keygen");
-  }
-
-  EVP_PKEY *pkey = nullptr;
-  if (EVP_PKEY_keygen(pctx, &pkey) <= 0) {
-    return Status::Error("Can't generate random private key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey);
-  };
-
-  TRY_RESULT(private_key, detail::X25519_key_from_PKEY(pkey, true));
-  return std::move(private_key);
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-Result<Ed25519::PublicKey> Ed25519::PrivateKey::get_public_key() const {
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-  auto pkey = detail::X25519_key_to_PKEY(octet_string_, true);
-  if (pkey == nullptr) {
-    return Status::Error("Can't import private key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey);
-  };
-
-  TRY_RESULT(key, detail::X25519_key_from_PKEY(pkey, false));
-  return Ed25519::PublicKey(std::move(key));
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-Result<SecureString> Ed25519::PrivateKey::as_pem(Slice password) const {
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-  auto pkey = detail::X25519_key_to_PKEY(octet_string_, true);
-  if (pkey == nullptr) {
-    return Status::Error("Can't import private key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey);
-  };
-
-  return detail::X25519_pem_from_PKEY(pkey, true, password);
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-Result<Ed25519::PrivateKey> Ed25519::PrivateKey::from_pem(Slice pem, Slice password) {
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-  auto pkey = detail::X25519_pem_to_PKEY(pem, password);
-  if (pkey == nullptr) {
-    return Status::Error("Can't import private key from pem");
-  }
-  TRY_RESULT(key, detail::X25519_key_from_PKEY(pkey, true));
-  return Ed25519::PrivateKey(std::move(key));
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-Result<SecureString> Ed25519::PrivateKey::sign(Slice data) const {
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-  auto pkey = detail::X25519_key_to_PKEY(octet_string_, true);
-  if (pkey == nullptr) {
-    return Status::Error("Can't import private key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey);
-  };
-
-  EVP_MD_CTX *md_ctx = EVP_MD_CTX_new();
-  if (md_ctx == nullptr) {
-    return Status::Error("Can't create EVP_MD_CTX");
-  }
-  SCOPE_EXIT {
-    EVP_MD_CTX_free(md_ctx);
-  };
-
-  if (EVP_DigestSignInit(md_ctx, nullptr, nullptr, nullptr, pkey) <= 0) {
-    return Status::Error("Can't init DigestSign");
-  }
-
-  SecureString res(64, '\0');
-  size_t len = 64;
-  if (EVP_DigestSign(md_ctx, res.as_mutable_slice().ubegin(), &len, data.ubegin(), data.size()) <= 0) {
-    return Status::Error("Can't sign data");
-  }
-  return std::move(res);
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-Status Ed25519::PublicKey::verify_signature(Slice data, Slice signature) const {
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-  auto pkey = detail::X25519_key_to_PKEY(octet_string_, false);
-  if (pkey == nullptr) {
-    return Status::Error("Can't import public key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey);
-  };
-
-  EVP_MD_CTX *md_ctx = EVP_MD_CTX_new();
-  if (md_ctx == nullptr) {
-    return Status::Error("Can't create EVP_MD_CTX");
-  }
-  SCOPE_EXIT {
-    EVP_MD_CTX_free(md_ctx);
-  };
-
-  if (EVP_DigestVerifyInit(md_ctx, nullptr, nullptr, nullptr, pkey) <= 0) {
-    return Status::Error("Can't init DigestVerify");
-  }
-
-  if (EVP_DigestVerify(md_ctx, signature.ubegin(), signature.size(), data.ubegin(), data.size())) {
-    return Status::OK();
-  }
-  return Status::Error("Wrong signature");
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-Result<SecureString> Ed25519::compute_shared_secret(const PublicKey &public_key, const PrivateKey &private_key) {
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-  BigNum p = BigNum::from_hex("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed").move_as_ok();
-  auto public_y = public_key.as_octet_string();
-  public_y.as_mutable_slice()[31] = static_cast<char>(public_y[31] & 127);
-  BigNum y = BigNum::from_le_binary(public_y);
-  BigNum y2 = y.clone();
-  y += 1;
-  y2 -= 1;
-
-  BigNumContext context;
-
-  BigNum::mod_sub(y2, p, y2, p, context);
-
-  BigNum inverse_y_plus_1;
-  BigNum::mod_inverse(inverse_y_plus_1, y2, p, context);
-
-  BigNum u;
-  BigNum::mod_mul(u, y, inverse_y_plus_1, p, context);
-
-  auto pr_key = private_key.as_octet_string();
-  unsigned char buf[64];
-  SHA512(Slice(pr_key).ubegin(), 32, buf);
-  buf[0] &= 248;
-  buf[31] &= 127;
-  buf[31] |= 64;
-
-  auto pkey_private = EVP_PKEY_new_raw_private_key(EVP_PKEY_X25519, nullptr, buf, 32);
-  if (pkey_private == nullptr) {
-    return Status::Error("Can't import private key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey_private);
-  };
-  // LOG(ERROR) << buffer_to_hex(Slice(buf, 32));
-
-  auto pub_key = u.to_le_binary(32);
-  auto pkey_public = EVP_PKEY_new_raw_public_key(EVP_PKEY_X25519, nullptr, Slice(pub_key).ubegin(), pub_key.size());
-  if (pkey_public == nullptr) {
-    return Status::Error("Can't import public key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey_public);
-  };
-  // LOG(ERROR) << buffer_to_hex(pub_key);
-
-  EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(pkey_private, nullptr);
-  if (ctx == nullptr) {
-    return Status::Error("Can't create EVP_PKEY_CTX");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_CTX_free(ctx);
-  };
-
-  if (EVP_PKEY_derive_init(ctx) <= 0) {
-    return Status::Error("Can't init derive");
-  }
-  if (EVP_PKEY_derive_set_peer(ctx, pkey_public) <= 0) {
-    return Status::Error("Can't init derive");
-  }
-
-  size_t result_len = 0;
-  if (EVP_PKEY_derive(ctx, nullptr, &result_len) <= 0) {
-    return Status::Error("Can't get result length");
-  }
-  if (result_len != 32) {
-    return Status::Error("Unexpected result length");
-  }
-
-  SecureString result(result_len, '\0');
-  if (EVP_PKEY_derive(ctx, result.as_mutable_slice().ubegin(), &result_len) <= 0) {
-    return Status::Error("Failed to compute shared secret");
-  }
-  return std::move(result);
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-Result<SecureString> Ed25519::get_public_key(Slice private_key) {
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
-  auto pkey_private = EVP_PKEY_new_raw_private_key(EVP_PKEY_X25519, nullptr, private_key.ubegin(), 32);
-  if (pkey_private == nullptr) {
-    return Status::Error("Invalid X25519 private key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey_private);
-  };
-
-  auto func = &EVP_PKEY_get_raw_public_key;
-  size_t len = 0;
-  if (func(pkey_private, nullptr, &len) == 0) {
-    return Status::Error("Failed to get raw key length");
-  }
-  CHECK(len == 32);
-
-  SecureString result(len);
-  if (func(pkey_private, result.as_mutable_slice().ubegin(), &len) == 0) {
-    return Status::Error("Failed to get raw key");
-  }
-  return std::move(result);
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/Ed25519.h b/third-party/td/td/tdutils/td/utils/Ed25519.h
deleted file mode 100644
index ae9a5fa8b8..0000000000
--- a/third-party/td/td/tdutils/td/utils/Ed25519.h
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-#if TD_HAVE_OPENSSL
-
-namespace td {
-
-class Ed25519 {
- public:
-  class PublicKey {
-   public:
-    static constexpr size_t LENGTH = 32;
-
-    PublicKey() = default;
-    explicit PublicKey(SecureString octet_string);
-    PublicKey(const PublicKey &other) : octet_string_(other.octet_string_.copy()) {
-    }
-    PublicKey(PublicKey &&) noexcept = default;
-    PublicKey &operator=(const PublicKey &other) {
-      CHECK(octet_string_.empty());
-      octet_string_ = other.octet_string_.copy();
-      return *this;
-    }
-    PublicKey &operator=(PublicKey &&) noexcept = delete;
-    ~PublicKey() = default;
-
-    SecureString as_octet_string() const;
-
-    UInt256 as_uint256() const {
-      UInt256 result;
-      CHECK(octet_string_.size() == result.as_slice().size());
-      result.as_mutable_slice().copy_from(octet_string_);
-      return result;
-    }
-
-    static Result<PublicKey> from_slice(Slice slice) {
-      if (slice.size() != 32) {
-        return Status::Error("Invalid slice size");
-      }
-      return PublicKey(SecureString(slice));
-    }
-
-    Status verify_signature(Slice data, Slice signature) const;
-
-    bool operator==(const PublicKey &other) const {
-      return octet_string_ == other.octet_string_;
-    }
-
-    bool operator!=(const PublicKey &other) const {
-      return octet_string_ != other.octet_string_;
-    }
-
-   private:
-    SecureString octet_string_;
-  };
-
-  class PrivateKey {
-   public:
-    static constexpr size_t LENGTH = 32;
-
-    explicit PrivateKey(SecureString octet_string);
-
-    SecureString as_octet_string() const;
-
-    Result<PublicKey> get_public_key() const;
-
-    Result<SecureString> sign(Slice data) const;
-
-    Result<SecureString> as_pem(Slice password) const;
-
-    static Result<PrivateKey> from_pem(Slice pem, Slice password);
-
-   private:
-    SecureString octet_string_;
-  };
-
-  static Result<PrivateKey> generate_private_key();
-
-  static Result<SecureString> compute_shared_secret(const PublicKey &public_key, const PrivateKey &private_key);
-
-  static Result<SecureString> get_public_key(Slice private_key);
-};
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/Enumerator.h b/third-party/td/td/tdutils/td/utils/Enumerator.h
deleted file mode 100644
index 6df3be16b2..0000000000
--- a/third-party/td/td/tdutils/td/utils/Enumerator.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/WaitFreeVector.h"
-
-#include <limits>
-#include <map>
-#include <tuple>
-
-namespace td {
-
-template <class ValueT>
-class Enumerator {
- public:
-  using Key = int32;
-
-  Key add(ValueT v) {
-    CHECK(arr_.size() < static_cast<size_t>(std::numeric_limits<int32>::max() - 1));
-    auto next_id = static_cast<int32>(arr_.size() + 1);
-    bool was_inserted;
-    decltype(map_.begin()) it;
-    std::tie(it, was_inserted) = map_.emplace(std::move(v), next_id);
-    if (was_inserted) {
-      arr_.push_back(&it->first);
-    }
-    return it->second;
-  }
-
-  const ValueT &get(Key key) const {
-    auto pos = static_cast<size_t>(key - 1);
-    CHECK(pos < arr_.size());
-    return *arr_[pos];
-  }
-
-  size_t size() const {
-    CHECK(map_.size() == arr_.size());
-    return arr_.size();
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
- private:
-  std::map<ValueT, int32> map_;
-  WaitFreeVector<const ValueT *> arr_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/EpochBasedMemoryReclamation.h b/third-party/td/td/tdutils/td/utils/EpochBasedMemoryReclamation.h
deleted file mode 100644
index 17b0db4cbb..0000000000
--- a/third-party/td/td/tdutils/td/utils/EpochBasedMemoryReclamation.h
+++ /dev/null
@@ -1,201 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/sleep.h"
-
-#include <atomic>
-#include <memory>
-
-namespace td {
-
-template <class T>
-class EpochBasedMemoryReclamation {
- public:
-  EpochBasedMemoryReclamation(const EpochBasedMemoryReclamation &) = delete;
-  EpochBasedMemoryReclamation &operator=(const EpochBasedMemoryReclamation &) = delete;
-  EpochBasedMemoryReclamation(EpochBasedMemoryReclamation &&) = delete;
-  EpochBasedMemoryReclamation &operator=(EpochBasedMemoryReclamation &&) = delete;
-  ~EpochBasedMemoryReclamation() = default;
-
-  class Locker {
-   public:
-    Locker(size_t thread_id, EpochBasedMemoryReclamation *ebmr) : thread_id_(thread_id), ebmr_(ebmr) {
-    }
-    Locker(const Locker &) = delete;
-    Locker &operator=(const Locker &) = delete;
-    Locker(Locker &&) = default;
-    Locker &operator=(Locker &&) = delete;
-
-    ~Locker() {
-      if (ebmr_) {
-        retire_sync();
-        unlock();
-        (void)ebmr_.release();
-      }
-    }
-    void lock() {
-      DCHECK(ebmr_);
-      ebmr_->lock(thread_id_);
-    }
-    void unlock() {
-      DCHECK(ebmr_);
-      ebmr_->unlock(thread_id_);
-    }
-
-    void retire_sync() {
-      ebmr_->retire_sync(thread_id_);
-    }
-
-    void retire() {
-      ebmr_->retire(thread_id_);
-    }
-
-    void retire(T *ptr) {
-      ebmr_->retire(thread_id_, ptr);
-    }
-
-   private:
-    size_t thread_id_;
-    struct Never {
-      template <class S>
-      void operator()(S *) const {
-        UNREACHABLE();
-      }
-    };
-    std::unique_ptr<EpochBasedMemoryReclamation, Never> ebmr_;
-  };
-
-  explicit EpochBasedMemoryReclamation(size_t threads_n) : threads_(threads_n) {
-  }
-
-  Locker get_locker(size_t thread_id) {
-    return Locker{thread_id, this};
-  }
-
-  size_t to_delete_size_unsafe() const {
-    size_t res = 0;
-    for (auto &thread_data : threads_) {
-      // LOG(ERROR) << "---" << thread_data.epoch.load() / 2;
-      for (size_t i = 0; i < MAX_BAGS; i++) {
-        res += thread_data.to_delete[i].size();
-        // LOG(ERROR) << thread_data.to_delete[i].size();
-      }
-    }
-    return res;
-  }
-
- private:
-  static constexpr size_t MAX_BAGS = 3;
-  struct ThreadData {
-    std::atomic<int64> epoch{1};
-    char pad[TD_CONCURRENCY_PAD - sizeof(std::atomic<int64>)];
-
-    size_t to_skip{0};
-    size_t checked_thread_i{0};
-    size_t bag_i{0};
-    std::vector<unique_ptr<T>> to_delete[MAX_BAGS];
-    char pad2[TD_CONCURRENCY_PAD - sizeof(std::vector<unique_ptr<T>>) * MAX_BAGS];
-
-    void rotate_bags() {
-      bag_i = (bag_i + 1) % MAX_BAGS;
-      to_delete[bag_i].clear();
-    }
-
-    void set_epoch(int64 new_epoch) {
-      //LOG(ERROR) << new_epoch;
-      if (epoch.load(std::memory_order_relaxed) / 2 != new_epoch) {
-        checked_thread_i = 0;
-        to_skip = 0;
-        rotate_bags();
-      }
-      epoch = new_epoch * 2;
-    }
-
-    void idle() {
-      epoch.store(epoch.load(std::memory_order_relaxed) | 1);
-    }
-
-    size_t undeleted() const {
-      size_t res = 0;
-      for (size_t i = 0; i < MAX_BAGS; i++) {
-        res += to_delete[i].size();
-      }
-      return res;
-    }
-  };
-  std::vector<ThreadData> threads_;
-  char pad[TD_CONCURRENCY_PAD - sizeof(std::vector<ThreadData>)];
-
-  std::atomic<int64> epoch_{1};
-  char pad2[TD_CONCURRENCY_PAD - sizeof(std::atomic<int64>)];
-
-  void lock(size_t thread_id) {
-    auto &data = threads_[thread_id];
-    auto epoch = epoch_.load();
-    data.set_epoch(epoch);
-
-    if (data.to_skip == 0) {
-      data.to_skip = 30;
-      step_check(data);
-    } else {
-      data.to_skip--;
-    }
-  }
-
-  void unlock(size_t thread_id) {
-    //LOG(ERROR) << "UNLOCK";
-    auto &data = threads_[thread_id];
-    data.idle();
-  }
-
-  bool step_check(ThreadData &data) {
-    auto epoch = data.epoch.load(std::memory_order_relaxed) / 2;
-    auto checked_thread_epoch = threads_[data.checked_thread_i].epoch.load();
-    if (checked_thread_epoch % 2 == 1 || checked_thread_epoch / 2 == epoch) {
-      data.checked_thread_i++;
-      if (data.checked_thread_i == threads_.size()) {
-        if (epoch_.compare_exchange_strong(epoch, epoch + 1)) {
-          data.set_epoch(epoch + 1);
-        } else {
-          data.set_epoch(epoch);
-        }
-      }
-      return true;
-    }
-    return false;
-  }
-
-  void retire_sync(size_t thread_id) {
-    auto &data = threads_[thread_id];
-
-    while (true) {
-      retire(thread_id);
-      data.idle();
-      if (data.undeleted() == 0) {
-        break;
-      }
-      usleep_for(1000);
-    }
-  }
-
-  void retire(size_t thread_id) {
-    auto &data = threads_[thread_id];
-    data.set_epoch(epoch_.load());
-    while (step_check(data) && data.undeleted() != 0) {
-    }
-  }
-
-  void retire(size_t thread_id, T *ptr) {
-    auto &data = threads_[thread_id];
-    data.to_delete[data.bag_i].push_back(unique_ptr<T>{ptr});
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ExitGuard.cpp b/third-party/td/td/tdutils/td/utils/ExitGuard.cpp
deleted file mode 100644
index a128798919..0000000000
--- a/third-party/td/td/tdutils/td/utils/ExitGuard.cpp
+++ /dev/null
@@ -1,20 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/ExitGuard.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-std::atomic<bool> ExitGuard::is_exited_{false};
-
-ExitGuard::~ExitGuard() {
-  is_exited_.store(true, std::memory_order_relaxed);
-  set_verbosity_level(VERBOSITY_NAME(FATAL));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ExitGuard.h b/third-party/td/td/tdutils/td/utils/ExitGuard.h
deleted file mode 100644
index 5d8c90ddde..0000000000
--- a/third-party/td/td/tdutils/td/utils/ExitGuard.h
+++ /dev/null
@@ -1,30 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <atomic>
-
-namespace td {
-
-class ExitGuard {
- public:
-  ExitGuard() = default;
-  ExitGuard(ExitGuard &&) = delete;
-  ExitGuard &operator=(ExitGuard &&) = delete;
-  ExitGuard(const ExitGuard &) = delete;
-  ExitGuard &operator=(const ExitGuard &) = delete;
-  ~ExitGuard();
-
-  static bool is_exited() {
-    return is_exited_.load(std::memory_order_relaxed);
-  }
-
- private:
-  static std::atomic<bool> is_exited_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FileLog.cpp b/third-party/td/td/tdutils/td/utils/FileLog.cpp
deleted file mode 100644
index 4b027450c3..0000000000
--- a/third-party/td/td/tdutils/td/utils/FileLog.cpp
+++ /dev/null
@@ -1,145 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/FileLog.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/StdStreams.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-Status FileLog::init(string path, int64 rotate_threshold, bool redirect_stderr) {
-  if (path.empty()) {
-    return Status::Error("Log file path must be non-empty");
-  }
-  if (path == path_) {
-    set_rotate_threshold(rotate_threshold);
-    return Status::OK();
-  }
-
-  TRY_RESULT(fd, FileFd::open(path, FileFd::Create | FileFd::Write | FileFd::Append));
-
-  fd_.close();
-  fd_ = std::move(fd);
-  if (!Stderr().empty() && redirect_stderr) {
-    fd_.get_native_fd().duplicate(Stderr().get_native_fd()).ignore();
-  }
-
-  auto r_path = realpath(path, true);
-  if (r_path.is_error()) {
-    path_ = std::move(path);
-  } else {
-    path_ = r_path.move_as_ok();
-  }
-  TRY_RESULT_ASSIGN(size_, fd_.get_size());
-  rotate_threshold_ = rotate_threshold;
-  redirect_stderr_ = redirect_stderr;
-  return Status::OK();
-}
-
-Slice FileLog::get_path() const {
-  return path_;
-}
-
-vector<string> FileLog::get_file_paths() {
-  vector<string> result;
-  if (!path_.empty()) {
-    result.push_back(path_);
-    result.push_back(PSTRING() << path_ << ".old");
-  }
-  return result;
-}
-
-void FileLog::set_rotate_threshold(int64 rotate_threshold) {
-  rotate_threshold_ = rotate_threshold;
-}
-
-int64 FileLog::get_rotate_threshold() const {
-  return rotate_threshold_;
-}
-
-bool FileLog::get_redirect_stderr() const {
-  return redirect_stderr_;
-}
-
-void FileLog::do_append(int log_level, CSlice slice) {
-  auto start_time = Time::now();
-  if (size_ > rotate_threshold_ || want_rotate_.load(std::memory_order_relaxed)) {
-    auto status = rename(path_, PSLICE() << path_ << ".old");
-    if (status.is_error()) {
-      process_fatal_error(PSLICE() << status << " in " << __FILE__ << " at " << __LINE__ << '\n');
-    }
-    do_after_rotation();
-  }
-  while (!slice.empty()) {
-    if (redirect_stderr_) {
-      while (has_log_guard()) {
-        // spin
-      }
-    }
-    auto r_size = fd_.write(slice);
-    if (r_size.is_error()) {
-      process_fatal_error(PSLICE() << r_size.error() << " in " << __FILE__ << " at " << __LINE__ << '\n');
-    }
-    auto written = r_size.ok();
-    size_ += static_cast<int64>(written);
-    slice.remove_prefix(written);
-  }
-  auto total_time = Time::now() - start_time;
-  if (total_time >= 0.1 && log_level >= 1) {
-    auto thread_id = get_thread_id();
-    auto r_size = fd_.write(PSLICE() << "[ 2][t" << (0 <= thread_id && thread_id < 10 ? " " : "") << thread_id
-                                     << "] !!! Previous logging took " << total_time << " seconds !!!\n");
-    r_size.ignore();
-  }
-}
-
-void FileLog::after_rotation() {
-  if (path_.empty()) {
-    return;
-  }
-  do_after_rotation();
-}
-
-void FileLog::lazy_rotate() {
-  want_rotate_ = true;
-}
-
-void FileLog::do_after_rotation() {
-  want_rotate_ = false;
-  ScopedDisableLog disable_log;  // to ensure that nothing will be printed to the closed log
-  CHECK(!path_.empty());
-  fd_.close();
-  auto r_fd = FileFd::open(path_, FileFd::Create | FileFd::Write | FileFd::Append);
-  if (r_fd.is_error()) {
-    process_fatal_error(PSLICE() << r_fd.error() << " in " << __FILE__ << " at " << __LINE__ << '\n');
-  }
-  fd_ = r_fd.move_as_ok();
-  if (!Stderr().empty() && redirect_stderr_) {
-    fd_.get_native_fd().duplicate(Stderr().get_native_fd()).ignore();
-  }
-  auto r_size = fd_.get_size();
-  if (r_fd.is_error()) {
-    process_fatal_error(PSLICE() << "Failed to get log size: " << r_fd.error() << " in " << __FILE__ << " at "
-                                 << __LINE__ << '\n');
-  }
-  size_ = r_size.move_as_ok();
-}
-
-Result<unique_ptr<LogInterface>> FileLog::create(string path, int64 rotate_threshold, bool redirect_stderr) {
-  auto l = make_unique<FileLog>();
-  TRY_STATUS(l->init(std::move(path), rotate_threshold, redirect_stderr));
-  return std::move(l);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FileLog.h b/third-party/td/td/tdutils/td/utils/FileLog.h
deleted file mode 100644
index 271713def3..0000000000
--- a/third-party/td/td/tdutils/td/utils/FileLog.h
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <atomic>
-
-namespace td {
-
-class FileLog final : public LogInterface {
-  static constexpr int64 DEFAULT_ROTATE_THRESHOLD = 10 * (1 << 20);
-
- public:
-  static Result<unique_ptr<LogInterface>> create(string path, int64 rotate_threshold = DEFAULT_ROTATE_THRESHOLD,
-                                                 bool redirect_stderr = true);
-  Status init(string path, int64 rotate_threshold = DEFAULT_ROTATE_THRESHOLD, bool redirect_stderr = true);
-
-  Slice get_path() const;
-
-  vector<string> get_file_paths() final;
-
-  void set_rotate_threshold(int64 rotate_threshold);
-
-  int64 get_rotate_threshold() const;
-
-  bool get_redirect_stderr() const;
-
-  void after_rotation() final;
-
-  void lazy_rotate();
-
- private:
-  FileFd fd_;
-  string path_;
-  int64 size_ = 0;
-  int64 rotate_threshold_ = 0;
-  bool redirect_stderr_ = false;
-  std::atomic<bool> want_rotate_{false};
-
-  void do_append(int log_level, CSlice slice) final;
-
-  void do_after_rotation();
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FlatHashMap.h b/third-party/td/td/tdutils/td/utils/FlatHashMap.h
deleted file mode 100644
index 411bd2b915..0000000000
--- a/third-party/td/td/tdutils/td/utils/FlatHashMap.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-//#include "td/utils/FlatHashMapChunks.h"
-#include "td/utils/FlatHashTable.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/MapNode.h"
-
-#include <functional>
-//#include <unordered_map>
-
-namespace td {
-
-template <class KeyT, class ValueT, class HashT = Hash<KeyT>, class EqT = std::equal_to<KeyT>>
-using FlatHashMap = FlatHashTable<MapNode<KeyT, ValueT, EqT>, HashT, EqT>;
-//using FlatHashMap = FlatHashMapChunks<KeyT, ValueT, HashT, EqT>;
-//using FlatHashMap = std::unordered_map<KeyT, ValueT, HashT, EqT>;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FlatHashMapChunks.h b/third-party/td/td/tdutils/td/utils/FlatHashMapChunks.h
deleted file mode 100644
index 35a7aee6aa..0000000000
--- a/third-party/td/td/tdutils/td/utils/FlatHashMapChunks.h
+++ /dev/null
@@ -1,578 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/bits.h"
-#include "td/utils/common.h"
-#include "td/utils/fixed_vector.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/MapNode.h"
-#include "td/utils/SetNode.h"
-
-#include <cstddef>
-#include <functional>
-#include <initializer_list>
-#include <iterator>
-#include <limits>
-#include <utility>
-
-#if defined(__SSE2__) || (TD_MSVC && (defined(_M_X64) || (defined(_M_IX86) && _M_IX86_FP >= 2)))
-#define TD_SSE2 1
-#endif
-
-#ifdef __aarch64__
-#include <arm_neon.h>
-#endif
-
-#if TD_SSE2
-#include <emmintrin.h>
-#endif
-
-namespace td {
-template <int shift>
-struct MaskIterator {
-  uint64 mask;
-  explicit operator bool() const noexcept {
-    return mask != 0;
-  }
-  int pos() const {
-    return count_trailing_zeroes64(mask) / shift;
-  }
-  void next() {
-    mask &= mask - 1;
-  }
-
-  // For foreach
-  bool operator!=(MaskIterator &other) const {
-    return mask != other.mask;
-  }
-  auto operator*() const {
-    return pos();
-  }
-  void operator++() {
-    next();
-  }
-  auto begin() {
-    return *this;
-  }
-  auto end() {
-    return MaskIterator{0u};
-  }
-};
-
-struct MaskPortable {
-  static MaskIterator<1> equal_mask(uint8 *bytes, uint8 needle) {
-    uint64 res = 0;
-    for (int i = 0; i < 16; i++) {
-      res |= (bytes[i] == needle) << i;
-    }
-    return {res & ((1u << 14) - 1)};
-  }
-};
-
-#ifdef __aarch64__
-struct MaskNeonFolly {
-  static MaskIterator<4> equal_mask(uint8 *bytes, uint8 needle) {
-    uint8x16_t input_mask = vld1q_u8(bytes);
-    auto needle_mask = vdupq_n_u8(needle);
-    auto eq_mask = vceqq_u8(input_mask, needle_mask);
-    // get info from every byte into the bottom half of every uint16
-    // by shifting right 4, then round to get it into a 64-bit vector
-    uint8x8_t shifted_eq_mask = vshrn_n_u16(vreinterpretq_u16_u8(eq_mask), 4);
-    uint64 mask = vget_lane_u64(vreinterpret_u64_u8(shifted_eq_mask), 0);
-    return {mask & 0x11111111111111};
-  }
-};
-
-struct MaskNeon {
-  static MaskIterator<1> equal_mask(uint8 *bytes, uint8 needle) {
-    uint8x16_t input_mask = vld1q_u8(bytes);
-    auto needle_mask = vdupq_n_u8(needle);
-    auto eq_mask = vceqq_u8(input_mask, needle_mask);
-    uint16x8_t MASK = vdupq_n_u16(0x180);
-    uint16x8_t a_masked = vandq_u16(vreinterpretq_u16_u8(eq_mask), MASK);
-    const int16 __attribute__((aligned(16))) SHIFT_ARR[8] = {-7, -5, -3, -1, 1, 3, 5, 7};
-    int16x8_t SHIFT = vld1q_s16(SHIFT_ARR);
-    uint16x8_t a_shifted = vshlq_u16(a_masked, SHIFT);
-    return {vaddvq_u16(a_shifted) & ((1u << 14) - 1)};
-  }
-};
-#elif TD_SSE2
-struct MaskSse2 {
-  static MaskIterator<1> equal_mask(uint8 *bytes, uint8 needle) {
-    auto input_mask = _mm_loadu_si128(reinterpret_cast<const __m128i *>(bytes));
-    auto needle_mask = _mm_set1_epi8(needle);
-    auto match_mask = _mm_cmpeq_epi8(needle_mask, input_mask);
-    return {static_cast<uint32>(_mm_movemask_epi8(match_mask)) & ((1u << 14) - 1)};
-  }
-};
-#endif
-
-#ifdef __aarch64__
-using MaskHelper = MaskNeonFolly;
-#elif TD_SSE2
-using MaskHelper = MaskSse2;
-#else
-using MaskHelper = MaskPortable;
-#endif
-
-template <class NodeT, class HashT, class EqT>
-class FlatHashTableChunks {
- public:
-  using Self = FlatHashTableChunks<NodeT, HashT, EqT>;
-  using Node = NodeT;
-  using NodeIterator = typename fixed_vector<Node>::iterator;
-  using ConstNodeIterator = typename fixed_vector<Node>::const_iterator;
-
-  using KeyT = typename Node::public_key_type;
-  using key_type = typename Node::public_key_type;
-  using value_type = typename Node::public_type;
-
-  struct Iterator {
-    using iterator_category = std::bidirectional_iterator_tag;
-    using difference_type = std::ptrdiff_t;
-    using value_type = FlatHashTableChunks::value_type;
-    using pointer = value_type *;
-    using reference = value_type &;
-
-    friend class FlatHashTableChunks;
-    Iterator &operator++() {
-      do {
-        ++it_;
-      } while (it_ != map_->nodes_.end() && it_->empty());
-      return *this;
-    }
-    Iterator &operator--() {
-      do {
-        --it_;
-      } while (it_->empty());
-      return *this;
-    }
-    reference operator*() {
-      return it_->get_public();
-    }
-    pointer operator->() {
-      return &it_->get_public();
-    }
-    bool operator==(const Iterator &other) const {
-      DCHECK(map_ == other.map_);
-      return it_ == other.it_;
-    }
-    bool operator!=(const Iterator &other) const {
-      DCHECK(map_ == other.map_);
-      return it_ != other.it_;
-    }
-
-    Iterator() = default;
-    Iterator(NodeIterator it, Self *map) : it_(std::move(it)), map_(map) {
-    }
-
-   private:
-    NodeIterator it_;
-    Self *map_;
-  };
-
-  struct ConstIterator {
-    using iterator_category = std::bidirectional_iterator_tag;
-    using difference_type = std::ptrdiff_t;
-    using value_type = FlatHashTableChunks::value_type;
-    using pointer = const value_type *;
-    using reference = const value_type &;
-
-    friend class FlatHashTableChunks;
-    ConstIterator &operator++() {
-      ++it_;
-      return *this;
-    }
-    ConstIterator &operator--() {
-      --it_;
-      return *this;
-    }
-    reference operator*() {
-      return *it_;
-    }
-    pointer operator->() {
-      return &*it_;
-    }
-    bool operator==(const ConstIterator &other) const {
-      return it_ == other.it_;
-    }
-    bool operator!=(const ConstIterator &other) const {
-      return it_ != other.it_;
-    }
-
-    ConstIterator() = default;
-    ConstIterator(Iterator it) : it_(std::move(it)) {
-    }
-
-   private:
-    Iterator it_;
-  };
-  using iterator = Iterator;
-  using const_iterator = ConstIterator;
-
-  FlatHashTableChunks() = default;
-  FlatHashTableChunks(const FlatHashTableChunks &other) {
-    assign(other);
-  }
-  FlatHashTableChunks &operator=(const FlatHashTableChunks &other) {
-    clear();
-    assign(other);
-    return *this;
-  }
-
-  FlatHashTableChunks(std::initializer_list<Node> nodes) {
-    reserve(nodes.size());
-    for (auto &new_node : nodes) {
-      CHECK(!new_node.empty());
-      if (count(new_node.key()) > 0) {
-        continue;
-      }
-      Node node;
-      node.copy_from(new_node);
-      emplace_node(std::move(node));
-    }
-  }
-
-  FlatHashTableChunks(FlatHashTableChunks &&other) noexcept {
-    swap(other);
-  }
-  FlatHashTableChunks &operator=(FlatHashTableChunks &&other) noexcept {
-    swap(other);
-    return *this;
-  }
-  void swap(FlatHashTableChunks &other) noexcept {
-    nodes_.swap(other.nodes_);
-    chunks_.swap(other.chunks_);
-    std::swap(used_nodes_, other.used_nodes_);
-  }
-  ~FlatHashTableChunks() = default;
-
-  size_t bucket_count() const {
-    return nodes_.size();
-  }
-
-  Iterator find(const KeyT &key) {
-    if (empty() || is_hash_table_key_empty<EqT>(key)) {
-      return end();
-    }
-    const auto hash = calc_hash(key);
-    auto chunk_it = get_chunk_it(hash.chunk_i);
-    while (true) {
-      auto chunk_i = chunk_it.pos();
-      auto chunk_begin = nodes_.begin() + chunk_i * Chunk::CHUNK_SIZE;
-      //__builtin_prefetch(chunk_begin);
-      auto &chunk = chunks_[chunk_i];
-      auto mask_it = MaskHelper::equal_mask(chunk.ctrl, hash.small_hash);
-      for (auto pos : mask_it) {
-        auto it = chunk_begin + pos;
-        if (likely(EqT()(it->key(), key))) {
-          return Iterator{it, this};
-        }
-      }
-      if (chunk.skipped_cnt == 0) {
-        break;
-      }
-      chunk_it.next();
-    }
-    return end();
-  }
-
-  ConstIterator find(const KeyT &key) const {
-    return ConstIterator(const_cast<Self *>(this)->find(key));
-  }
-
-  size_t size() const {
-    return used_nodes_;
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
-  Iterator begin() {
-    if (empty()) {
-      return end();
-    }
-    auto it = nodes_.begin();
-    while (it->empty()) {
-      ++it;
-    }
-    return Iterator(it, this);
-  }
-  Iterator end() {
-    return Iterator(nodes_.end(), this);
-  }
-
-  ConstIterator begin() const {
-    return ConstIterator(const_cast<Self *>(this)->begin());
-  }
-  ConstIterator end() const {
-    return ConstIterator(const_cast<Self *>(this)->end());
-  }
-
-  void reserve(size_t size) {
-    //size_t want_size = normalize(size * 5 / 3 + 1);
-    size_t want_size = normalize(size * 14 / 12 + 1);
-    // size_t want_size = size * 2;
-    if (want_size > nodes_.size()) {
-      resize(want_size);
-    }
-  }
-
-  template <class... ArgsT>
-  std::pair<Iterator, bool> emplace(KeyT key, ArgsT &&...args) {
-    CHECK(!is_hash_table_key_empty<EqT>(key));
-    auto it = find(key);
-    if (it != end()) {
-      return {it, false};
-    }
-    try_grow();
-
-    auto hash = calc_hash(key);
-    auto chunk_it = get_chunk_it(hash.chunk_i);
-    while (true) {
-      auto chunk_i = chunk_it.pos();
-      auto &chunk = chunks_[chunk_i];
-      auto mask_it = MaskHelper::equal_mask(chunk.ctrl, 0);
-      if (mask_it) {
-        auto shift = mask_it.pos();
-        DCHECK(chunk.ctrl[shift] == 0);
-        auto node_it = nodes_.begin() + shift + chunk_i * Chunk::CHUNK_SIZE;
-        DCHECK(node_it->empty());
-        node_it->emplace(std::move(key), std::forward<ArgsT>(args)...);
-        DCHECK(!node_it->empty());
-        chunk.ctrl[shift] = hash.small_hash;
-        used_nodes_++;
-        return {{node_it, this}, true};
-      }
-      CHECK(chunk.skipped_cnt != std::numeric_limits<uint16>::max());
-      chunk.skipped_cnt++;
-      chunk_it.next();
-    }
-  }
-
-  std::pair<Iterator, bool> insert(KeyT key) {
-    return emplace(std::move(key));
-  }
-
-  template <class ItT>
-  void insert(ItT begin, ItT end) {
-    for (; begin != end; ++begin) {
-      emplace(*begin);
-    }
-  }
-
-  template <class T = typename Node::second_type>
-  T &operator[](const KeyT &key) {
-    return emplace(key).first->second;
-  }
-
-  size_t erase(const KeyT &key) {
-    auto it = find(key);
-    if (it == end()) {
-      return 0;
-    }
-    erase(it);
-    try_shrink();
-    return 1;
-  }
-
-  size_t count(const KeyT &key) const {
-    return find(key) != end();
-  }
-
-  void clear() {
-    used_nodes_ = 0;
-    nodes_ = {};
-    chunks_ = {};
-  }
-
-  void erase(Iterator it) {
-    DCHECK(it != end());
-    DCHECK(!it.it_->empty());
-    erase_node(it.it_);
-  }
-
-  template <class F>
-  bool remove_if(F &&f) {
-    bool is_removed = false;
-    for (auto it = nodes_.begin(), end = nodes_.end(); it != end; ++it) {
-      if (!it->empty() && f(it->get_public())) {
-        erase_node(it);
-        is_removed = true;
-      }
-    }
-    try_shrink();
-    return is_removed;
-  }
-
- private:
-  struct Chunk {
-    static constexpr int CHUNK_SIZE = 14;
-    static constexpr int MASK = (1 << CHUNK_SIZE) - 1;
-    // 0x0 - empty
-    uint8 ctrl[CHUNK_SIZE] = {};
-    uint16 skipped_cnt{0};
-  };
-  fixed_vector<Node> nodes_;
-  fixed_vector<Chunk> chunks_;
-  size_t used_nodes_{};
-
-  void assign(const FlatHashTableChunks &other) {
-    reserve(other.size());
-    for (const auto &new_node : other) {
-      Node node;
-      node.copy_from(new_node);
-      emplace_node(std::move(node));
-    }
-  }
-
-  void try_grow() {
-    if (should_grow(used_nodes_ + 1, nodes_.size())) {
-      grow();
-    }
-  }
-  static bool should_grow(size_t used_count, size_t bucket_count) {
-    return used_count * 14 > bucket_count * 12;
-  }
-  void try_shrink() {
-    if (should_shrink(used_nodes_, nodes_.size())) {
-      shrink();
-    }
-  }
-  static bool should_shrink(size_t used_count, size_t bucket_count) {
-    return used_count * 10 < bucket_count;
-  }
-
-  static size_t normalize(size_t size) {
-    auto x = (size / Chunk::CHUNK_SIZE) | 1;
-    auto y = static_cast<size_t>(1) << (64 - count_leading_zeroes64(x));
-    return y * Chunk::CHUNK_SIZE;
-  }
-
-  void shrink() {
-    size_t want_size = normalize((used_nodes_ + 1) * 5 / 3 + 1);
-    resize(want_size);
-  }
-
-  void grow() {
-    size_t want_size = normalize(2 * nodes_.size() - !nodes_.empty());
-    resize(want_size);
-  }
-
-  struct HashInfo {
-    size_t chunk_i;
-    uint8 small_hash;
-  };
-  struct ChunkIt {
-    size_t chunk_i;
-    size_t chunk_mask;
-    size_t shift;
-
-    size_t pos() const {
-      return chunk_i;
-    }
-    void next() {
-      DCHECK((chunk_mask & (chunk_mask + 1)) == 0);
-      shift++;
-      chunk_i += shift;
-      chunk_i &= chunk_mask;
-    }
-  };
-
-  ChunkIt get_chunk_it(size_t chunk_i) {
-    return ChunkIt{chunk_i, chunks_.size() - 1, 0};
-  }
-
-  HashInfo calc_hash(const KeyT &key) {
-    auto h = HashT()(key);
-    return {(h >> 8) % chunks_.size(), static_cast<uint8>(0x80 | h)};
-  }
-
-  void resize(size_t new_size) {
-    CHECK(new_size >= Chunk::CHUNK_SIZE);
-    fixed_vector<Node> old_nodes(new_size);
-    fixed_vector<Chunk> chunks(new_size / Chunk::CHUNK_SIZE);
-    old_nodes.swap(nodes_);
-    chunks_ = std::move(chunks);
-    used_nodes_ = 0;
-
-    for (auto &node : old_nodes) {
-      if (node.empty()) {
-        continue;
-      }
-      emplace_node(std::move(node));
-    }
-  }
-
-  void emplace_node(Node &&node) {
-    DCHECK(!node.empty());
-    auto hash = calc_hash(node.key());
-    auto chunk_it = get_chunk_it(hash.chunk_i);
-    while (true) {
-      auto chunk_i = chunk_it.pos();
-      auto &chunk = chunks_[chunk_i];
-      auto mask_it = MaskHelper::equal_mask(chunk.ctrl, 0);
-      if (mask_it) {
-        auto shift = mask_it.pos();
-        auto node_it = nodes_.begin() + shift + chunk_i * Chunk::CHUNK_SIZE;
-        DCHECK(node_it->empty());
-        *node_it = std::move(node);
-        DCHECK(chunk.ctrl[shift] == 0);
-        chunk.ctrl[shift] = hash.small_hash;
-        DCHECK(chunk.ctrl[shift] != 0);
-        used_nodes_++;
-        break;
-      }
-      CHECK(chunk.skipped_cnt != std::numeric_limits<uint16>::max());
-      chunk.skipped_cnt++;
-      chunk_it.next();
-    }
-  }
-
-  void next_bucket(size_t &bucket) const {
-    bucket++;
-    if (unlikely(bucket == nodes_.size())) {
-      bucket = 0;
-    }
-  }
-
-  void erase_node(NodeIterator it) {
-    DCHECK(!it->empty());
-    size_t empty_i = it - nodes_.begin();
-    DCHECK(0 <= empty_i && empty_i < nodes_.size());
-    auto empty_chunk_i = empty_i / Chunk::CHUNK_SIZE;
-    auto hash = calc_hash(it->key());
-    auto chunk_it = get_chunk_it(hash.chunk_i);
-    while (true) {
-      auto chunk_i = chunk_it.pos();
-      auto &chunk = chunks_[chunk_i];
-      if (chunk_i == empty_chunk_i) {
-        chunk.ctrl[empty_i - empty_chunk_i * Chunk::CHUNK_SIZE] = 0;
-        break;
-      }
-      chunk.skipped_cnt--;
-      chunk_it.next();
-    }
-    it->clear();
-    used_nodes_--;
-  }
-};
-
-template <class KeyT, class ValueT, class HashT = Hash<KeyT>, class EqT = std::equal_to<KeyT>>
-using FlatHashMapChunks = FlatHashTableChunks<MapNode<KeyT, ValueT, EqT>, HashT, EqT>;
-
-template <class KeyT, class HashT = Hash<KeyT>, class EqT = std::equal_to<KeyT>>
-using FlatHashSetChunks = FlatHashTableChunks<SetNode<KeyT, EqT>, HashT, EqT>;
-
-template <class NodeT, class HashT, class EqT, class FuncT>
-bool table_remove_if(FlatHashTableChunks<NodeT, HashT, EqT> &table, FuncT &&func) {
-  return table.remove_if(func);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FlatHashSet.h b/third-party/td/td/tdutils/td/utils/FlatHashSet.h
deleted file mode 100644
index e72a23d0f1..0000000000
--- a/third-party/td/td/tdutils/td/utils/FlatHashSet.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-//#include "td/utils/FlatHashMapChunks.h"
-#include "td/utils/FlatHashTable.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/SetNode.h"
-
-#include <functional>
-//#include <unordered_set>
-
-namespace td {
-
-template <class KeyT, class HashT = Hash<KeyT>, class EqT = std::equal_to<KeyT>>
-using FlatHashSet = FlatHashTable<SetNode<KeyT, EqT>, HashT, EqT>;
-//using FlatHashSet = FlatHashSetChunks<KeyT, HashT, EqT>;
-//using FlatHashSet = std::unordered_set<KeyT, HashT, EqT>;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FlatHashTable.cpp b/third-party/td/td/tdutils/td/utils/FlatHashTable.cpp
deleted file mode 100644
index 1c582e6201..0000000000
--- a/third-party/td/td/tdutils/td/utils/FlatHashTable.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/FlatHashTable.h"
-
-#include "td/utils/bits.h"
-#include "td/utils/Random.h"
-
-namespace td {
-namespace detail {
-
-uint32 normalize_flat_hash_table_size(uint32 size) {
-  return td::max(static_cast<uint32>(1) << (32 - count_leading_zeroes32(size)), static_cast<uint32>(8));
-}
-
-uint32 get_random_flat_hash_table_bucket(uint32 bucket_count_mask) {
-  return Random::fast_uint32() & bucket_count_mask;
-}
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FlatHashTable.h b/third-party/td/td/tdutils/td/utils/FlatHashTable.h
deleted file mode 100644
index 36e7b339b0..0000000000
--- a/third-party/td/td/tdutils/td/utils/FlatHashTable.h
+++ /dev/null
@@ -1,558 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-
-#include <cstddef>
-#include <initializer_list>
-#include <iterator>
-#include <utility>
-
-namespace td {
-
-namespace detail {
-uint32 normalize_flat_hash_table_size(uint32 size);
-uint32 get_random_flat_hash_table_bucket(uint32 bucket_count_mask);
-}  // namespace detail
-
-template <class NodeT, class HashT, class EqT>
-class FlatHashTable {
-  static constexpr uint32 INVALID_BUCKET = 0xFFFFFFFF;
-
-  void allocate_nodes(uint32 size) {
-    DCHECK(size >= 8);
-    DCHECK((size & (size - 1)) == 0);
-    CHECK(size <= min(static_cast<uint32>(1) << 29, static_cast<uint32>(0x7FFFFFFF / sizeof(NodeT))));
-    nodes_ = new NodeT[size];
-    // used_node_count_ = 0;
-    bucket_count_mask_ = size - 1;
-    bucket_count_ = size;
-    begin_bucket_ = INVALID_BUCKET;
-  }
-
-  static void clear_nodes(NodeT *nodes) {
-    delete[] nodes;
-  }
-
- public:
-  using KeyT = typename NodeT::public_key_type;
-  using key_type = typename NodeT::public_key_type;
-  using value_type = typename NodeT::public_type;
-
-  struct EndSentinel {};
-
-  struct Iterator {
-    using iterator_category = std::forward_iterator_tag;
-    using difference_type = std::ptrdiff_t;
-    using value_type = typename NodeT::public_type;
-    using pointer = value_type *;
-    using reference = value_type &;
-
-    Iterator &operator++() {
-      DCHECK(it_ != nullptr);
-      do {
-        if (unlikely(++it_ == end_)) {
-          it_ = begin_;
-        }
-        if (unlikely(it_ == start_)) {
-          it_ = nullptr;
-          break;
-        }
-      } while (it_->empty());
-      return *this;
-    }
-    reference operator*() {
-      return it_->get_public();
-    }
-    const value_type &operator*() const {
-      return it_->get_public();
-    }
-    pointer operator->() {
-      return &it_->get_public();
-    }
-    const value_type *operator->() const {
-      return &it_->get_public();
-    }
-
-    NodeT *get() {
-      return it_;
-    }
-
-    bool operator==(const EndSentinel &) const {
-      return it_ == nullptr;
-    }
-    bool operator!=(const EndSentinel &) const {
-      return it_ != nullptr;
-    }
-
-    Iterator() = default;
-    Iterator(NodeT *it, NodeT *begin, NodeT *end) : it_(it), begin_(begin), start_(it), end_(end) {
-    }
-
-   private:
-    NodeT *it_ = nullptr;
-    NodeT *begin_ = nullptr;
-    NodeT *start_ = nullptr;
-    NodeT *end_ = nullptr;
-  };
-
-  struct ConstIterator {
-    using iterator_category = std::forward_iterator_tag;
-    using difference_type = std::ptrdiff_t;
-    using value_type = typename NodeT::public_type;
-    using pointer = const value_type *;
-    using reference = const value_type &;
-
-    ConstIterator &operator++() {
-      ++it_;
-      return *this;
-    }
-    reference operator*() const {
-      return *it_;
-    }
-    pointer operator->() const {
-      return &*it_;
-    }
-    bool operator==(const EndSentinel &other) const {
-      return it_ == other;
-    }
-    bool operator!=(const EndSentinel &other) const {
-      return it_ != other;
-    }
-
-    ConstIterator() = default;
-    ConstIterator(Iterator it) : it_(std::move(it)) {
-    }
-
-   private:
-    Iterator it_;
-  };
-  using iterator = Iterator;
-  using const_iterator = ConstIterator;
-
-  struct NodePointer {
-    value_type &operator*() {
-      return it_->get_public();
-    }
-    const value_type &operator*() const {
-      return it_->get_public();
-    }
-    value_type *operator->() {
-      return &it_->get_public();
-    }
-    const value_type *operator->() const {
-      return &it_->get_public();
-    }
-
-    NodeT *get() {
-      return it_;
-    }
-
-    bool operator==(const EndSentinel &) const {
-      return it_ == nullptr;
-    }
-    bool operator!=(const EndSentinel &) const {
-      return it_ != nullptr;
-    }
-
-    explicit NodePointer(NodeT *it) : it_(it) {
-    }
-
-   private:
-    NodeT *it_ = nullptr;
-  };
-
-  struct ConstNodePointer {
-    const value_type &operator*() const {
-      return it_->get_public();
-    }
-    const value_type *operator->() const {
-      return &it_->get_public();
-    }
-
-    bool operator==(const EndSentinel &) const {
-      return it_ == nullptr;
-    }
-    bool operator!=(const EndSentinel &) const {
-      return it_ != nullptr;
-    }
-
-    const NodeT *get() const {
-      return it_;
-    }
-
-    explicit ConstNodePointer(const NodeT *it) : it_(it) {
-    }
-
-   private:
-    const NodeT *it_ = nullptr;
-  };
-
-  FlatHashTable() = default;
-  FlatHashTable(const FlatHashTable &) = delete;
-  FlatHashTable &operator=(const FlatHashTable &) = delete;
-
-  FlatHashTable(std::initializer_list<NodeT> nodes) {
-    if (nodes.size() == 0) {
-      return;
-    }
-    reserve(nodes.size());
-    uint32 used_nodes = 0;
-    for (auto &new_node : nodes) {
-      CHECK(!new_node.empty());
-      auto bucket = calc_bucket(new_node.key());
-      while (true) {
-        auto &node = nodes_[bucket];
-        if (node.empty()) {
-          node.copy_from(new_node);
-          used_nodes++;
-          break;
-        }
-        if (EqT()(node.key(), new_node.key())) {
-          break;
-        }
-        next_bucket(bucket);
-      }
-    }
-    used_node_count_ = used_nodes;
-  }
-
-  template <class T>
-  FlatHashTable(std::initializer_list<T> keys) {
-    for (auto &key : keys) {
-      emplace(KeyT(key));
-    }
-  }
-
-  FlatHashTable(FlatHashTable &&other) noexcept
-      : nodes_(other.nodes_)
-      , used_node_count_(other.used_node_count_)
-      , bucket_count_mask_(other.bucket_count_mask_)
-      , bucket_count_(other.bucket_count_)
-      , begin_bucket_(other.begin_bucket_) {
-    other.drop();
-  }
-  void operator=(FlatHashTable &&other) noexcept {
-    clear();
-    nodes_ = other.nodes_;
-    used_node_count_ = other.used_node_count_;
-    bucket_count_mask_ = other.bucket_count_mask_;
-    bucket_count_ = other.bucket_count_;
-    begin_bucket_ = other.begin_bucket_;
-    other.drop();
-  }
-  ~FlatHashTable() {
-    clear_nodes(nodes_);
-  }
-
-  void swap(FlatHashTable &other) noexcept {
-    std::swap(nodes_, other.nodes_);
-    std::swap(used_node_count_, other.used_node_count_);
-    std::swap(bucket_count_mask_, other.bucket_count_mask_);
-    std::swap(bucket_count_, other.bucket_count_);
-    std::swap(begin_bucket_, other.begin_bucket_);
-  }
-
-  uint32 bucket_count() const {
-    return bucket_count_;
-  }
-
-  NodePointer find(const KeyT &key) {
-    return NodePointer(find_impl(key));
-  }
-
-  ConstNodePointer find(const KeyT &key) const {
-    return ConstNodePointer(const_cast<FlatHashTable *>(this)->find_impl(key));
-  }
-
-  size_t size() const {
-    return used_node_count_;
-  }
-
-  bool empty() const {
-    return used_node_count_ == 0;
-  }
-
-  Iterator begin() {
-    return create_iterator(begin_impl());
-  }
-
-  ConstIterator begin() const {
-    return ConstIterator(const_cast<FlatHashTable *>(this)->begin());
-  }
-
-  EndSentinel end() const {
-    return EndSentinel();
-  }
-
-  void reserve(size_t size) {
-    if (size == 0) {
-      return;
-    }
-    CHECK(size <= (1u << 29));
-    uint32 want_size = detail::normalize_flat_hash_table_size(static_cast<uint32>(size) * 5 / 3 + 1);
-    if (want_size > bucket_count()) {
-      resize(want_size);
-    }
-  }
-
-  template <class... ArgsT>
-  std::pair<NodePointer, bool> emplace(KeyT key, ArgsT &&...args) {
-    CHECK(!is_hash_table_key_empty<EqT>(key));
-    if (unlikely(bucket_count_mask_ == 0)) {
-      CHECK(used_node_count_ == 0);
-      resize(8);
-    }
-    auto bucket = calc_bucket(key);
-    while (true) {
-      auto &node = nodes_[bucket];
-      if (node.empty()) {
-        if (unlikely(used_node_count_ * 5 >= bucket_count_mask_ * 3)) {
-          resize(2 * bucket_count_);
-          CHECK(used_node_count_ * 5 < bucket_count_mask_ * 3);
-          return emplace(std::move(key), std::forward<ArgsT>(args)...);
-        }
-        invalidate_iterators();
-
-        node.emplace(std::move(key), std::forward<ArgsT>(args)...);
-        used_node_count_++;
-        return {NodePointer(&node), true};
-      }
-      if (EqT()(node.key(), key)) {
-        return {NodePointer(&node), false};
-      }
-      next_bucket(bucket);
-    }
-  }
-
-  std::pair<NodePointer, bool> insert(KeyT key) {
-    return emplace(std::move(key));
-  }
-
-  template <class ItT>
-  void insert(ItT begin, ItT end) {
-    for (; begin != end; ++begin) {
-      emplace(*begin);
-    }
-  }
-
-  template <class T = typename NodeT::second_type>
-  T &operator[](const KeyT &key) {
-    return emplace(key).first->second;
-  }
-
-  size_t erase(const KeyT &key) {
-    auto *node = find_impl(key);
-    if (node == nullptr) {
-      return 0;
-    }
-    erase_node(node);
-    try_shrink();
-    return 1;
-  }
-
-  size_t count(const KeyT &key) const {
-    return const_cast<FlatHashTable *>(this)->find_impl(key) != nullptr;
-  }
-
-  void clear() {
-    if (nodes_ != nullptr) {
-      clear_nodes(nodes_);
-      drop();
-    }
-  }
-
-  void erase(Iterator it) {
-    DCHECK(it != end());
-    erase_node(it.get());
-    try_shrink();
-  }
-
-  void erase(NodePointer it) {
-    DCHECK(it != end());
-    erase_node(it.get());
-    try_shrink();
-  }
-
-  template <class F>
-  bool remove_if(F &&f) {
-    if (empty()) {
-      return false;
-    }
-
-    auto it = begin_impl();
-    auto end = nodes_ + bucket_count();
-    while (it != end && !it->empty()) {
-      ++it;
-    }
-    if (it == end) {
-      do {
-        --it;
-      } while (!it->empty());
-    }
-    auto first_empty = it;
-    bool is_removed = false;
-    while (it != end) {
-      if (!it->empty() && f(it->get_public())) {
-        erase_node(it);
-        is_removed = true;
-      } else {
-        ++it;
-      }
-    }
-    for (it = nodes_; it != first_empty;) {
-      if (!it->empty() && f(it->get_public())) {
-        erase_node(it);
-        is_removed = true;
-      } else {
-        ++it;
-      }
-    }
-    try_shrink();
-    return is_removed;
-  }
-
- private:
-  NodeT *nodes_ = nullptr;
-  uint32 used_node_count_ = 0;
-  uint32 bucket_count_mask_ = 0;
-  uint32 bucket_count_ = 0;
-  uint32 begin_bucket_ = 0;
-
-  void drop() {
-    nodes_ = nullptr;
-    used_node_count_ = 0;
-    bucket_count_mask_ = 0;
-    bucket_count_ = 0;
-    begin_bucket_ = 0;
-  }
-
-  NodeT *begin_impl() {
-    if (empty()) {
-      return nullptr;
-    }
-    if (begin_bucket_ == INVALID_BUCKET) {
-      begin_bucket_ = detail::get_random_flat_hash_table_bucket(bucket_count_mask_);
-      while (nodes_[begin_bucket_].empty()) {
-        next_bucket(begin_bucket_);
-      }
-    }
-    return nodes_ + begin_bucket_;
-  }
-
-  NodeT *find_impl(const KeyT &key) {
-    if (unlikely(nodes_ == nullptr) || is_hash_table_key_empty<EqT>(key)) {
-      return nullptr;
-    }
-    auto bucket = calc_bucket(key);
-    while (true) {
-      auto &node = nodes_[bucket];
-      if (node.empty()) {
-        return nullptr;
-      }
-      if (EqT()(node.key(), key)) {
-        return &node;
-      }
-      next_bucket(bucket);
-    }
-  }
-
-  void try_shrink() {
-    DCHECK(nodes_ != nullptr);
-    if (unlikely(used_node_count_ * 10 < bucket_count_mask_ && bucket_count_mask_ > 7)) {
-      resize(detail::normalize_flat_hash_table_size((used_node_count_ + 1) * 5 / 3 + 1));
-    }
-    invalidate_iterators();
-  }
-
-  uint32 calc_bucket(const KeyT &key) const {
-    return HashT()(key) & bucket_count_mask_;
-  }
-
-  inline void next_bucket(uint32 &bucket) const {
-    bucket = (bucket + 1) & bucket_count_mask_;
-  }
-
-  void resize(uint32 new_size) {
-    if (unlikely(nodes_ == nullptr)) {
-      allocate_nodes(new_size);
-      used_node_count_ = 0;
-      return;
-    }
-
-    auto old_nodes = nodes_;
-    uint32 old_size = used_node_count_;
-    uint32 old_bucket_count = bucket_count_;
-    allocate_nodes(new_size);
-    used_node_count_ = old_size;
-
-    auto old_nodes_end = old_nodes + old_bucket_count;
-    for (NodeT *old_node = old_nodes; old_node != old_nodes_end; ++old_node) {
-      if (old_node->empty()) {
-        continue;
-      }
-      auto bucket = calc_bucket(old_node->key());
-      while (!nodes_[bucket].empty()) {
-        next_bucket(bucket);
-      }
-      nodes_[bucket] = std::move(*old_node);
-    }
-    clear_nodes(old_nodes);
-  }
-
-  void erase_node(NodeT *it) {
-    DCHECK(nodes_ <= it && static_cast<size_t>(it - nodes_) < bucket_count());
-    it->clear();
-    used_node_count_--;
-
-    const auto bucket_count = bucket_count_;
-    const auto *end = nodes_ + bucket_count;
-    for (auto *test_node = it + 1; test_node != end; test_node++) {
-      if (likely(test_node->empty())) {
-        return;
-      }
-
-      auto want_node = nodes_ + calc_bucket(test_node->key());
-      if (want_node <= it || want_node > test_node) {
-        *it = std::move(*test_node);
-        it = test_node;
-      }
-    }
-
-    auto empty_i = static_cast<uint32>(it - nodes_);
-    auto empty_bucket = empty_i;
-    for (uint32 test_i = bucket_count;; test_i++) {
-      auto test_bucket = test_i - bucket_count_;
-      if (nodes_[test_bucket].empty()) {
-        return;
-      }
-
-      auto want_i = calc_bucket(nodes_[test_bucket].key());
-      if (want_i < empty_i) {
-        want_i += bucket_count;
-      }
-
-      if (want_i <= empty_i || want_i > test_i) {
-        nodes_[empty_bucket] = std::move(nodes_[test_bucket]);
-        empty_i = test_i;
-        empty_bucket = test_bucket;
-      }
-    }
-  }
-
-  Iterator create_iterator(NodeT *node) {
-    return Iterator(node, nodes_, nodes_ + bucket_count());
-  }
-
-  void invalidate_iterators() {
-    begin_bucket_ = INVALID_BUCKET;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FloodControlFast.h b/third-party/td/td/tdutils/td/utils/FloodControlFast.h
deleted file mode 100644
index 6714ab5acd..0000000000
--- a/third-party/td/td/tdutils/td/utils/FloodControlFast.h
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class FloodControlFast {
- public:
-  void add_event(double now) {
-    for (auto &bucket : buckets_) {
-      bucket.add_event(now);
-      wakeup_at_ = td::max(wakeup_at_, bucket.get_wakeup_at());
-    }
-  }
-
-  double get_wakeup_at() const {
-    return wakeup_at_;
-  }
-
-  void add_limit(double duration, double count) {
-    buckets_.emplace_back(duration, count);
-  }
-
-  void clear_events() {
-    for (auto &bucket : buckets_) {
-      bucket.clear_events();
-    }
-    wakeup_at_ = 0;
-  }
-
- private:
-  class FloodControlBucket {
-   public:
-    FloodControlBucket(double duration, double count)
-        : max_capacity_(count - 1), speed_(count / duration), volume_(max_capacity_) {
-    }
-
-    void add_event(double now, double size = 1) {
-      CHECK(now >= wakeup_at_);
-      update_volume(now);
-      if (volume_ >= size) {
-        volume_ -= size;
-        return;
-      }
-      size -= volume_;
-      volume_ = 0;
-      wakeup_at_ = volume_at_ + size / speed_;
-      volume_at_ = wakeup_at_;
-    }
-
-    double get_wakeup_at() const {
-      return wakeup_at_;
-    }
-
-    void clear_events() {
-      volume_ = max_capacity_;
-      volume_at_ = 0;
-      wakeup_at_ = 0;
-    }
-
-   private:
-    const double max_capacity_{1};
-    const double speed_{1};
-    double volume_{1};
-
-    double volume_at_{0};
-    double wakeup_at_{0};
-
-    void update_volume(double now) {
-      CHECK(now >= volume_at_);
-      auto passed = now - volume_at_;
-      volume_ = td::min(volume_ + passed * speed_, max_capacity_);
-      volume_at_ = now;
-    }
-  };
-
-  double wakeup_at_ = 0;
-  vector<FloodControlBucket> buckets_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FloodControlGlobal.cpp b/third-party/td/td/tdutils/td/utils/FloodControlGlobal.cpp
deleted file mode 100644
index ac57d0c607..0000000000
--- a/third-party/td/td/tdutils/td/utils/FloodControlGlobal.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/FloodControlGlobal.h"
-
-namespace td {
-
-FloodControlGlobal::FloodControlGlobal(uint64 limit) : limit_(limit) {
-}
-
-void FloodControlGlobal::finish() {
-  auto old_value = active_count_.fetch_sub(1, std::memory_order_relaxed);
-  CHECK(old_value > 0);
-}
-
-FloodControlGlobal::Guard FloodControlGlobal::try_start() {
-  auto old_value = active_count_.fetch_add(1, std::memory_order_relaxed);
-  if (old_value >= limit_) {
-    finish();
-    return nullptr;
-  }
-  return Guard(this);
-}
-
-void FloodControlGlobal::Finish::operator()(FloodControlGlobal *ctrl) const {
-  ctrl->finish();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FloodControlGlobal.h b/third-party/td/td/tdutils/td/utils/FloodControlGlobal.h
deleted file mode 100644
index 9c783c811a..0000000000
--- a/third-party/td/td/tdutils/td/utils/FloodControlGlobal.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <atomic>
-#include <memory>
-
-namespace td {
-
-// Restricts the total number of events
-class FloodControlGlobal {
- public:
-  explicit FloodControlGlobal(uint64 limit);
-
-  struct Finish {
-    void operator()(FloodControlGlobal *ctrl) const;
-  };
-  using Guard = std::unique_ptr<FloodControlGlobal, Finish>;
-
-  Guard try_start();
-
- private:
-  std::atomic<uint64> active_count_{0};
-  uint64 limit_{0};
-
-  void finish();
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/FloodControlStrict.h b/third-party/td/td/tdutils/td/utils/FloodControlStrict.h
deleted file mode 100644
index 5024c8801f..0000000000
--- a/third-party/td/td/tdutils/td/utils/FloodControlStrict.h
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <limits>
-
-namespace td {
-
-// More strict implementations of flood control than FloodControlFast.
-// Should be just fine for small counters.
-class FloodControlStrict {
- public:
-  // there is no reason to return wakeup_at_, because it will be a time before the next allowed event, not current
-  void add_event(double now) {
-    events_.push_back(Event{now});
-    if (without_update_ > 0) {
-      without_update_--;
-    } else {
-      update(now);
-    }
-  }
-
-  // no more than count in each duration
-  void add_limit(int32 duration, size_t count) {
-    limits_.push_back(Limit{duration, count, 0});
-    without_update_ = 0;
-  }
-
-  double get_wakeup_at() const {
-    return wakeup_at_;
-  }
-
-  void clear_events() {
-    events_.clear();
-    for (auto &limit : limits_) {
-      limit.pos_ = 0;
-    }
-    without_update_ = 0;
-    wakeup_at_ = 0.0;
-  }
-
- private:
-  void update(double now) {
-    size_t min_pos = events_.size();
-
-    without_update_ = std::numeric_limits<size_t>::max();
-    for (auto &limit : limits_) {
-      if (limit.count_ < events_.size() - limit.pos_) {
-        limit.pos_ = events_.size() - limit.count_;
-      }
-
-      // binary-search? :D
-      auto end_time = now - limit.duration_;
-      while (limit.pos_ < events_.size() && events_[limit.pos_].timestamp_ < end_time) {
-        limit.pos_++;
-      }
-
-      if (limit.count_ + limit.pos_ <= events_.size()) {
-        CHECK(limit.count_ + limit.pos_ == events_.size());
-        wakeup_at_ = max(wakeup_at_, events_[limit.pos_].timestamp_ + limit.duration_);
-        without_update_ = 0;
-      } else {
-        without_update_ = min(without_update_, limit.count_ + limit.pos_ - events_.size() - 1);
-      }
-
-      min_pos = min(min_pos, limit.pos_);
-    }
-
-    if (min_pos * 2 > events_.size()) {
-      for (auto &limit : limits_) {
-        limit.pos_ -= min_pos;
-      }
-      events_.erase(events_.begin(), events_.begin() + min_pos);
-    }
-  }
-
-  double wakeup_at_ = 0.0;
-  struct Event {
-    double timestamp_;
-  };
-  struct Limit {
-    int32 duration_;
-    size_t count_;
-    size_t pos_;
-  };
-  size_t without_update_ = 0;
-  vector<Event> events_;
-  vector<Limit> limits_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Gzip.cpp b/third-party/td/td/tdutils/td/utils/Gzip.cpp
deleted file mode 100644
index 77b3741358..0000000000
--- a/third-party/td/td/tdutils/td/utils/Gzip.cpp
+++ /dev/null
@@ -1,208 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/Gzip.h"
-
-char disable_linker_warning_about_empty_file_gzip_cpp TD_UNUSED;
-
-#if TD_HAVE_ZLIB
-#include "td/utils/SliceBuilder.h"
-
-#include <cstring>
-#include <limits>
-#include <utility>
-
-#include <zlib.h>
-
-namespace td {
-
-class Gzip::Impl {
- public:
-  z_stream stream_;
-
-  // z_stream is not copyable nor movable
-  Impl() = default;
-  Impl(const Impl &) = delete;
-  Impl &operator=(const Impl &) = delete;
-  Impl(Impl &&) = delete;
-  Impl &operator=(Impl &&) = delete;
-  ~Impl() = default;
-};
-
-Status Gzip::init_encode() {
-  CHECK(mode_ == Mode::Empty);
-  init_common();
-  mode_ = Mode::Encode;
-  int ret = deflateInit2(&impl_->stream_, 6, Z_DEFLATED, 15, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY);
-  if (ret != Z_OK) {
-    return Status::Error(PSLICE() << "zlib deflate init failed: " << ret);
-  }
-  return Status::OK();
-}
-
-Status Gzip::init_decode() {
-  CHECK(mode_ == Mode::Empty);
-  init_common();
-  mode_ = Mode::Decode;
-  int ret = inflateInit2(&impl_->stream_, MAX_WBITS + 32);
-  if (ret != Z_OK) {
-    return Status::Error(PSLICE() << "zlib inflate init failed: " << ret);
-  }
-  return Status::OK();
-}
-
-void Gzip::set_input(Slice input) {
-  CHECK(input_size_ == 0);
-  CHECK(!close_input_flag_);
-  CHECK(input.size() <= std::numeric_limits<uInt>::max());
-  CHECK(impl_->stream_.avail_in == 0);
-  input_size_ = input.size();
-  impl_->stream_.avail_in = static_cast<uInt>(input.size());
-  impl_->stream_.next_in = reinterpret_cast<Bytef *>(const_cast<char *>(input.data()));
-}
-
-void Gzip::set_output(MutableSlice output) {
-  CHECK(output_size_ == 0);
-  CHECK(output.size() <= std::numeric_limits<uInt>::max());
-  CHECK(impl_->stream_.avail_out == 0);
-  output_size_ = output.size();
-  impl_->stream_.avail_out = static_cast<uInt>(output.size());
-  impl_->stream_.next_out = reinterpret_cast<Bytef *>(output.data());
-}
-
-Result<Gzip::State> Gzip::run() {
-  while (true) {
-    int ret;
-    if (mode_ == Mode::Decode) {
-      ret = inflate(&impl_->stream_, Z_NO_FLUSH);
-    } else {
-      ret = deflate(&impl_->stream_, close_input_flag_ ? Z_FINISH : Z_NO_FLUSH);
-    }
-
-    if (ret == Z_OK) {
-      return State::Running;
-    }
-    if (ret == Z_STREAM_END) {
-      // TODO(now): fail if input is not empty;
-      clear();
-      return State::Done;
-    }
-    clear();
-    return Status::Error(PSLICE() << "zlib error " << ret);
-  }
-}
-
-size_t Gzip::left_input() const {
-  return impl_->stream_.avail_in;
-}
-size_t Gzip::left_output() const {
-  return impl_->stream_.avail_out;
-}
-
-void Gzip::init_common() {
-  std::memset(&impl_->stream_, 0, sizeof(impl_->stream_));
-  impl_->stream_.zalloc = Z_NULL;
-  impl_->stream_.zfree = Z_NULL;
-  impl_->stream_.opaque = Z_NULL;
-  impl_->stream_.avail_in = 0;
-  impl_->stream_.next_in = nullptr;
-  impl_->stream_.avail_out = 0;
-  impl_->stream_.next_out = nullptr;
-
-  input_size_ = 0;
-  output_size_ = 0;
-
-  close_input_flag_ = false;
-}
-
-void Gzip::clear() {
-  if (mode_ == Mode::Decode) {
-    inflateEnd(&impl_->stream_);
-  } else if (mode_ == Mode::Encode) {
-    deflateEnd(&impl_->stream_);
-  }
-  mode_ = Mode::Empty;
-}
-
-Gzip::Gzip() : impl_(make_unique<Impl>()) {
-}
-
-Gzip::Gzip(Gzip &&other) noexcept : Gzip() {
-  swap(other);
-}
-
-Gzip &Gzip::operator=(Gzip &&other) noexcept {
-  CHECK(this != &other);
-  clear();
-  swap(other);
-  return *this;
-}
-
-void Gzip::swap(Gzip &other) {
-  using std::swap;
-  swap(impl_, other.impl_);
-  swap(input_size_, other.input_size_);
-  swap(output_size_, other.output_size_);
-  swap(close_input_flag_, other.close_input_flag_);
-  swap(mode_, other.mode_);
-}
-
-Gzip::~Gzip() {
-  clear();
-}
-
-BufferSlice gzdecode(Slice s) {
-  Gzip gzip;
-  gzip.init_decode().ensure();
-  ChainBufferWriter message;
-  gzip.set_input(s);
-  gzip.close_input();
-  double k = 2;
-  gzip.set_output(message.prepare_append(static_cast<size_t>(static_cast<double>(s.size()) * k)));
-  while (true) {
-    auto r_state = gzip.run();
-    if (r_state.is_error()) {
-      return BufferSlice();
-    }
-    auto state = r_state.ok();
-    if (state == Gzip::State::Done) {
-      message.confirm_append(gzip.flush_output());
-      break;
-    }
-    if (gzip.need_input()) {
-      return BufferSlice();
-    }
-    if (gzip.need_output()) {
-      message.confirm_append(gzip.flush_output());
-      k *= 1.5;
-      gzip.set_output(message.prepare_append(static_cast<size_t>(static_cast<double>(gzip.left_input()) * k)));
-    }
-  }
-  return message.extract_reader().move_as_buffer_slice();
-}
-
-BufferSlice gzencode(Slice s, double max_compression_ratio) {
-  Gzip gzip;
-  gzip.init_encode().ensure();
-  gzip.set_input(s);
-  gzip.close_input();
-  auto max_size = static_cast<size_t>(static_cast<double>(s.size()) * max_compression_ratio);
-  BufferWriter message{max_size};
-  gzip.set_output(message.prepare_append());
-  auto r_state = gzip.run();
-  if (r_state.is_error()) {
-    return BufferSlice();
-  }
-  auto state = r_state.ok();
-  if (state != Gzip::State::Done) {
-    return BufferSlice();
-  }
-  message.confirm_append(gzip.flush_output());
-  return message.as_buffer_slice();
-}
-
-}  // namespace td
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/Gzip.h b/third-party/td/td/tdutils/td/utils/Gzip.h
deleted file mode 100644
index b5789aa189..0000000000
--- a/third-party/td/td/tdutils/td/utils/Gzip.h
+++ /dev/null
@@ -1,106 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#if TD_HAVE_ZLIB
-#include "td/utils/buffer.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class Gzip {
- public:
-  Gzip();
-  Gzip(const Gzip &) = delete;
-  Gzip &operator=(const Gzip &) = delete;
-  Gzip(Gzip &&other) noexcept;
-  Gzip &operator=(Gzip &&other) noexcept;
-  ~Gzip();
-
-  enum class Mode { Empty, Encode, Decode };
-  Status init(Mode mode) TD_WARN_UNUSED_RESULT {
-    if (mode == Mode::Encode) {
-      return init_encode();
-    } else if (mode == Mode::Decode) {
-      return init_decode();
-    }
-    clear();
-    return Status::OK();
-  }
-
-  Status init_encode() TD_WARN_UNUSED_RESULT;
-
-  Status init_decode() TD_WARN_UNUSED_RESULT;
-
-  void set_input(Slice input);
-
-  void set_output(MutableSlice output);
-
-  void close_input() {
-    close_input_flag_ = true;
-  }
-
-  bool need_input() const {
-    return left_input() == 0;
-  }
-
-  bool need_output() const {
-    return left_output() == 0;
-  }
-
-  size_t left_input() const;
-
-  size_t left_output() const;
-
-  size_t used_input() const {
-    return input_size_ - left_input();
-  }
-
-  size_t used_output() const {
-    return output_size_ - left_output();
-  }
-
-  size_t flush_input() {
-    auto res = used_input();
-    input_size_ = left_input();
-    return res;
-  }
-
-  size_t flush_output() {
-    auto res = used_output();
-    output_size_ = left_output();
-    return res;
-  }
-
-  enum class State { Running, Done };
-  Result<State> run() TD_WARN_UNUSED_RESULT;
-
- private:
-  class Impl;
-  unique_ptr<Impl> impl_;
-
-  size_t input_size_ = 0;
-  size_t output_size_ = 0;
-  bool close_input_flag_ = false;
-  Mode mode_ = Mode::Empty;
-
-  void init_common();
-  void clear();
-
-  void swap(Gzip &other);
-};
-
-BufferSlice gzdecode(Slice s);
-
-BufferSlice gzencode(Slice s, double max_compression_ratio);
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/GzipByteFlow.cpp b/third-party/td/td/tdutils/td/utils/GzipByteFlow.cpp
deleted file mode 100644
index 659e3ed90e..0000000000
--- a/third-party/td/td/tdutils/td/utils/GzipByteFlow.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/GzipByteFlow.h"
-
-char disable_linker_warning_about_empty_file_gzipbyteflow_cpp TD_UNUSED;
-
-#if TD_HAVE_ZLIB
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-bool GzipByteFlow::loop() {
-  if (gzip_.need_input()) {
-    auto slice = input_->prepare_read();
-    if (slice.empty()) {
-      if (!is_input_active_) {
-        gzip_.close_input();
-      } else {
-        return false;
-      }
-    } else {
-      gzip_.set_input(input_->prepare_read());
-    }
-  }
-  if (gzip_.need_output()) {
-    auto slice = output_.prepare_append();
-    CHECK(!slice.empty());
-    gzip_.set_output(slice);
-  }
-  auto r_state = gzip_.run();
-  auto output_size = gzip_.flush_output();
-  if (output_size) {
-    if (output_size > max_output_size_ || total_output_size_ > max_output_size_ - output_size) {
-      finish(Status::Error("Max output size limit exceeded"));
-      return false;
-    }
-    total_output_size_ += output_size;
-    output_.confirm_append(output_size);
-  }
-
-  auto input_size = gzip_.flush_input();
-  if (input_size) {
-    input_->confirm_read(input_size);
-  }
-  if (r_state.is_error()) {
-    finish(r_state.move_as_error());
-    return false;
-  }
-  auto state = r_state.ok();
-  if (state == Gzip::State::Done) {
-    consume_input();
-    return false;
-  }
-  return true;
-}
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/GzipByteFlow.h b/third-party/td/td/tdutils/td/utils/GzipByteFlow.h
deleted file mode 100644
index f0daedfac4..0000000000
--- a/third-party/td/td/tdutils/td/utils/GzipByteFlow.h
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/ByteFlow.h"
-#include "td/utils/Gzip.h"
-
-#include <limits>
-
-namespace td {
-
-#if TD_HAVE_ZLIB
-class GzipByteFlow final : public ByteFlowBase {
- public:
-  GzipByteFlow() = default;
-
-  explicit GzipByteFlow(Gzip::Mode mode) {
-    gzip_.init(mode).ensure();
-  }
-
-  void init_decode() {
-    gzip_.init_decode().ensure();
-  }
-
-  void init_encode() {
-    gzip_.init_encode().ensure();
-  }
-
-  void set_max_output_size(size_t max_output_size) {
-    max_output_size_ = max_output_size;
-  }
-
-  bool loop() final;
-
- private:
-  Gzip gzip_;
-  size_t total_output_size_ = 0;
-  size_t max_output_size_ = std::numeric_limits<size_t>::max();
-};
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Hash.h b/third-party/td/td/tdutils/td/utils/Hash.h
deleted file mode 100644
index 9ea6c25f9b..0000000000
--- a/third-party/td/td/tdutils/td/utils/Hash.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#if TD_HAVE_ABSL
-#include <absl/hash/hash.h>
-#endif
-
-#include <utility>
-
-namespace td {
-// A simple wrapper for absl::flat_hash_map, std::unordered_map and probably some our implementation of hash map in
-// the future
-
-// We will introduce out own Hashing utility like an absl one.
-class Hasher {
- public:
-  Hasher() = default;
-  explicit Hasher(size_t init_value) : hash_(init_value) {
-  }
-  std::size_t finalize() const {
-    return hash_;
-  }
-
-  static Hasher combine(Hasher hasher, size_t value) {
-    hasher.hash_ ^= value;
-    return hasher;
-  }
-
-  template <class A, class B>
-  static Hasher combine(Hasher hasher, const std::pair<A, B> &value) {
-    hasher = AbslHashValue(std::move(hasher), value.first);
-    hasher = AbslHashValue(std::move(hasher), value.second);
-    return hasher;
-  }
-
- private:
-  std::size_t hash_{0};
-};
-
-template <class IgnoreT>
-class TdHash {
- public:
-  template <class T>
-  std::size_t operator()(const T &value) const noexcept {
-    return AbslHashValue(Hasher(), value).finalize();
-  }
-};
-
-#if TD_HAVE_ABSL
-template <class T>
-using AbslHash = absl::Hash<T>;
-#else
-template <class T>
-using AbslHash = TdHash<T>;
-#endif
-
-// default hash implementations
-template <class H, class T>
-decltype(H::combine(std::declval<H>(), std::declval<T>())) AbslHashValue(H hasher, const T &value) {
-  return H::combine(std::move(hasher), value);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/HashMap.h b/third-party/td/td/tdutils/td/utils/HashMap.h
deleted file mode 100644
index bb18f890ff..0000000000
--- a/third-party/td/td/tdutils/td/utils/HashMap.h
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Hash.h"
-
-#if TD_HAVE_ABSL
-#include <absl/container/flat_hash_map.h>
-#else
-#include <unordered_map>
-#endif
-
-namespace td {
-
-#if TD_HAVE_ABSL
-template <class Key, class Value, class H = AbslHash<Key>>
-using HashMap = absl::flat_hash_map<Key, Value, H>;
-#else
-template <class Key, class Value, class H = AbslHash<Key>>
-using HashMap = std::unordered_map<Key, Value, H>;
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/HashSet.h b/third-party/td/td/tdutils/td/utils/HashSet.h
deleted file mode 100644
index fc33f67d28..0000000000
--- a/third-party/td/td/tdutils/td/utils/HashSet.h
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Hash.h"
-
-#if TD_HAVE_ABSL
-#include <absl/container/flat_hash_set.h>
-#else
-#include <unordered_set>
-#endif
-
-namespace td {
-
-#if TD_HAVE_ABSL
-template <class Key, class H = AbslHash<Key>>
-using HashSet = absl::flat_hash_set<Key, H>;
-#else
-template <class Key, class H = AbslHash<Key>>
-using HashSet = std::unordered_set<Key, H>;
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/HashTableUtils.h b/third-party/td/td/tdutils/td/utils/HashTableUtils.h
deleted file mode 100644
index f6ed5aaf28..0000000000
--- a/third-party/td/td/tdutils/td/utils/HashTableUtils.h
+++ /dev/null
@@ -1,76 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <cstdint>
-#include <functional>
-
-namespace td {
-
-template <class EqT, class KeyT>
-bool is_hash_table_key_empty(const KeyT &key) {
-  return EqT()(key, KeyT());
-}
-
-inline uint32 randomize_hash(uint32 h) {
-  h ^= h >> 16;
-  h *= 0x85ebca6b;
-  h ^= h >> 13;
-  h *= 0xc2b2ae35;
-  h ^= h >> 16;
-  return h;
-}
-
-template <class Type>
-struct Hash {
-  uint32 operator()(const Type &value) const;
-};
-
-template <class Type>
-struct Hash<Type *> {
-  uint32 operator()(Type *pointer) const {
-    return Hash<uint64>()(reinterpret_cast<std::uintptr_t>(pointer));
-  }
-};
-
-template <>
-inline uint32 Hash<char>::operator()(const char &value) const {
-  return randomize_hash(static_cast<uint32>(value));
-}
-
-template <>
-inline uint32 Hash<int32>::operator()(const int32 &value) const {
-  return randomize_hash(static_cast<uint32>(value));
-}
-
-template <>
-inline uint32 Hash<uint32>::operator()(const uint32 &value) const {
-  return randomize_hash(value);
-}
-
-template <>
-inline uint32 Hash<int64>::operator()(const int64 &value) const {
-  return randomize_hash(static_cast<uint32>(value + (value >> 32)));
-}
-
-template <>
-inline uint32 Hash<uint64>::operator()(const uint64 &value) const {
-  return randomize_hash(static_cast<uint32>(value + (value >> 32)));
-}
-
-template <>
-inline uint32 Hash<string>::operator()(const string &value) const {
-  return static_cast<uint32>(std::hash<string>()(value));
-}
-
-inline uint32 combine_hashes(uint32 first_hash, uint32 second_hash) {
-  return first_hash * 2023654985u + second_hash;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/HazardPointers.h b/third-party/td/td/tdutils/td/utils/HazardPointers.h
deleted file mode 100644
index e3459495e6..0000000000
--- a/third-party/td/td/tdutils/td/utils/HazardPointers.h
+++ /dev/null
@@ -1,141 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <array>
-#include <atomic>
-#include <memory>
-
-namespace td {
-
-template <class T, int MaxPointersN = 1, class Deleter = std::default_delete<T>>
-class HazardPointers {
- public:
-  explicit HazardPointers(size_t threads_n) : threads_(threads_n) {
-    for (auto &data : threads_) {
-      for (auto &ptr : data.hazard_) {
-// workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64658
-#if TD_GCC && GCC_VERSION <= 40902
-        ptr = nullptr;
-#else
-        std::atomic_init(&ptr, static_cast<T *>(nullptr));
-#endif
-      }
-    }
-  }
-  HazardPointers(const HazardPointers &) = delete;
-  HazardPointers &operator=(const HazardPointers &) = delete;
-  HazardPointers(HazardPointers &&) = delete;
-  HazardPointers &operator=(HazardPointers &&) = delete;
-
-  class Holder {
-   public:
-    template <class S>
-    S *protect(std::atomic<S *> &to_protect) {
-      return do_protect(hazard_ptr_, to_protect);
-    }
-    Holder(HazardPointers &hp, size_t thread_id, size_t pos) : Holder(hp.get_hazard_ptr(thread_id, pos)) {
-      CHECK(hazard_ptr_.load() == 0);
-      hazard_ptr_.store(reinterpret_cast<T *>(1));
-    }
-    Holder(const Holder &) = delete;
-    Holder &operator=(const Holder &) = delete;
-    Holder(Holder &&) = delete;
-    Holder &operator=(Holder &&) = delete;
-    ~Holder() {
-      clear();
-    }
-    void clear() {
-      hazard_ptr_.store(nullptr, std::memory_order_release);
-    }
-
-   private:
-    friend class HazardPointers;
-    explicit Holder(std::atomic<T *> &ptr) : hazard_ptr_(ptr) {
-    }
-    std::atomic<T *> &hazard_ptr_;
-  };
-
-  void retire(size_t thread_id, T *ptr = nullptr) {
-    CHECK(thread_id < threads_.size());
-    auto &data = threads_[thread_id];
-    if (ptr) {
-      data.to_delete_.push_back(std::unique_ptr<T, Deleter>(ptr));
-    }
-    for (auto it = data.to_delete_.begin(); it != data.to_delete_.end();) {
-      if (!is_protected(it->get())) {
-        it->reset();
-        it = data.to_delete_.erase(it);
-      } else {
-        ++it;
-      }
-    }
-  }
-
-  // old interface
-  T *protect(size_t thread_id, size_t pos, std::atomic<T *> &ptr) {
-    return do_protect(get_hazard_ptr(thread_id, pos), ptr);
-  }
-  void clear(size_t thread_id, size_t pos) {
-    do_clear(get_hazard_ptr(thread_id, pos));
-  }
-
-  size_t to_delete_size_unsafe() const {
-    size_t res = 0;
-    for (auto &thread_data : threads_) {
-      res += thread_data.to_delete_.size();
-    }
-    return res;
-  }
-
- private:
-  struct ThreadData {
-    std::array<std::atomic<T *>, MaxPointersN> hazard_;
-    char pad[TD_CONCURRENCY_PAD - sizeof(std::array<std::atomic<T *>, MaxPointersN>)];
-
-    // stupid gc
-    std::vector<std::unique_ptr<T, Deleter>> to_delete_;
-    char pad2[TD_CONCURRENCY_PAD - sizeof(std::vector<std::unique_ptr<T, Deleter>>)];
-  };
-  std::vector<ThreadData> threads_;
-  char pad2[TD_CONCURRENCY_PAD - sizeof(std::vector<ThreadData>)];
-
-  template <class S>
-  static S *do_protect(std::atomic<T *> &hazard_ptr, std::atomic<S *> &to_protect) {
-    T *saved = nullptr;
-    T *to_save;
-    while ((to_save = to_protect.load()) != saved) {
-      hazard_ptr.store(to_save);
-      saved = to_save;
-    }
-    return static_cast<S *>(saved);
-  }
-
-  static void do_clear(std::atomic<T *> &hazard_ptr) {
-    hazard_ptr.store(nullptr, std::memory_order_release);
-  }
-
-  bool is_protected(T *ptr) {
-    for (auto &thread_data : threads_) {
-      for (auto &hazard_ptr : thread_data.hazard_) {
-        if (hazard_ptr.load() == ptr) {
-          return true;
-        }
-      }
-    }
-    return false;
-  }
-
-  std::atomic<T *> &get_hazard_ptr(size_t thread_id, size_t pos) {
-    CHECK(thread_id < threads_.size());
-    return threads_[thread_id].hazard_[pos];
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Heap.h b/third-party/td/td/tdutils/td/utils/Heap.h
deleted file mode 100644
index b34ffae925..0000000000
--- a/third-party/td/td/tdutils/td/utils/Heap.h
+++ /dev/null
@@ -1,171 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct HeapNode {
-  bool in_heap() const {
-    return pos_ != -1;
-  }
-  bool is_top() const {
-    return pos_ == 0;
-  }
-  void remove() {
-    pos_ = -1;
-  }
-  int32 pos_ = -1;
-};
-
-template <class KeyT, int K = 4>
-class KHeap {
- public:
-  bool empty() const {
-    return array_.empty();
-  }
-  size_t size() const {
-    return array_.size();
-  }
-
-  KeyT top_key() const {
-    return array_[0].key_;
-  }
-
-  KeyT get_key(const HeapNode *node) const {
-    auto pos = static_cast<size_t>(node->pos_);
-    CHECK(pos < array_.size());
-    return array_[pos].key_;
-  }
-
-  const HeapNode *top() const {
-    return array_[0].node_;
-  }
-
-  HeapNode *pop() {
-    CHECK(!empty());
-    HeapNode *result = array_[0].node_;
-    result->remove();
-    erase(static_cast<size_t>(0));
-    return result;
-  }
-
-  void insert(KeyT key, HeapNode *node) {
-    CHECK(!node->in_heap());
-    array_.push_back({key, node});
-    fix_up(array_.size() - 1);
-  }
-
-  void fix(KeyT key, HeapNode *node) {
-    auto pos = static_cast<size_t>(node->pos_);
-    CHECK(pos < array_.size());
-    KeyT old_key = array_[pos].key_;
-    array_[pos].key_ = key;
-    if (key < old_key) {
-      fix_up(pos);
-    } else {
-      fix_down(pos);
-    }
-  }
-
-  void erase(HeapNode *node) {
-    auto pos = static_cast<size_t>(node->pos_);
-    node->remove();
-    CHECK(pos < array_.size());
-    erase(pos);
-  }
-
-  template <class F>
-  void for_each(F &&f) const {
-    for (auto &it : array_) {
-      f(it.key_, it.node_);
-    }
-  }
-
-  template <class F>
-  void for_each(F &&f) {
-    for (auto &it : array_) {
-      f(it.key_, it.node_);
-    }
-  }
-
-  void check() const {
-    for (size_t i = 0; i < array_.size(); i++) {
-      for (size_t j = i * K + 1; j < i * K + 1 + K && j < array_.size(); j++) {
-        CHECK(array_[i].key_ <= array_[j].key_);
-      }
-    }
-  }
-
- private:
-  struct Item {
-    KeyT key_;
-    HeapNode *node_;
-  };
-  vector<Item> array_;
-
-  void fix_up(size_t pos) {
-    auto item = array_[pos];
-
-    while (pos) {
-      auto parent_pos = (pos - 1) / K;
-      auto parent_item = array_[parent_pos];
-
-      if (parent_item.key_ < item.key_) {
-        break;
-      }
-
-      parent_item.node_->pos_ = static_cast<int32>(pos);
-      array_[pos] = parent_item;
-      pos = parent_pos;
-    }
-
-    item.node_->pos_ = static_cast<int32>(pos);
-    array_[pos] = item;
-  }
-
-  void fix_down(size_t pos) {
-    auto item = array_[pos];
-    while (true) {
-      auto left_pos = pos * K + 1;
-      auto right_pos = min(left_pos + K, array_.size());
-      auto next_pos = pos;
-      KeyT next_key = item.key_;
-      for (auto i = left_pos; i < right_pos; i++) {
-        KeyT i_key = array_[i].key_;
-        if (i_key < next_key) {
-          next_key = i_key;
-          next_pos = i;
-        }
-      }
-      if (next_pos == pos) {
-        break;
-      }
-      array_[pos] = array_[next_pos];
-      array_[pos].node_->pos_ = static_cast<int32>(pos);
-      pos = next_pos;
-    }
-
-    item.node_->pos_ = static_cast<int32>(pos);
-    array_[pos] = item;
-  }
-
-  void erase(size_t pos) {
-    array_[pos] = array_.back();
-    array_.pop_back();
-    if (pos < array_.size()) {
-      fix_down(pos);
-      fix_up(pos);
-    }
-    if (array_.capacity() > 50 && array_.size() < array_.capacity() / 4) {
-      array_.shrink_to_fit();
-    }
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Hints.cpp b/third-party/td/td/tdutils/td/utils/Hints.cpp
deleted file mode 100644
index a853918053..0000000000
--- a/third-party/td/td/tdutils/td/utils/Hints.cpp
+++ /dev/null
@@ -1,206 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/Hints.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/translit.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-
-namespace td {
-
-vector<string> Hints::fix_words(vector<string> words) {
-  std::sort(words.begin(), words.end());
-
-  size_t new_words_size = 0;
-  for (size_t i = 0; i != words.size(); i++) {
-    if (i == words.size() - 1 || !begins_with(words[i + 1], words[i])) {
-      if (i != new_words_size) {
-        words[new_words_size] = std::move(words[i]);
-      }
-      new_words_size++;
-    }
-  }
-  if (new_words_size == 1 && words[0].empty()) {
-    new_words_size = 0;
-  }
-  words.resize(new_words_size);
-  return words;
-}
-
-vector<string> Hints::get_words(Slice name) {
-  return fix_words(utf8_get_search_words(name));
-}
-
-void Hints::add_word(const string &word, KeyT key, std::map<string, vector<KeyT>> &word_to_keys) {
-  vector<KeyT> &keys = word_to_keys[word];
-  CHECK(!td::contains(keys, key));
-  keys.push_back(key);
-}
-
-void Hints::delete_word(const string &word, KeyT key, std::map<string, vector<KeyT>> &word_to_keys) {
-  vector<KeyT> &keys = word_to_keys[word];
-  auto key_it = std::find(keys.begin(), keys.end(), key);
-  CHECK(key_it != keys.end());
-  if (keys.size() == 1) {
-    word_to_keys.erase(word);
-  } else {
-    CHECK(keys.size() > 1);
-    *key_it = keys.back();
-    keys.pop_back();
-  }
-}
-
-void Hints::add(KeyT key, Slice name) {
-  // LOG(ERROR) << "Add " << key << ": " << name;
-  auto it = key_to_name_.find(key);
-  if (it != key_to_name_.end()) {
-    if (it->second == name) {
-      return;
-    }
-    vector<string> old_transliterations;
-    for (auto &old_word : get_words(it->second)) {
-      delete_word(old_word, key, word_to_keys_);
-
-      for (auto &w : get_word_transliterations(old_word, false)) {
-        if (w != old_word) {
-          old_transliterations.push_back(std::move(w));
-        }
-      }
-    }
-    for (auto &word : fix_words(old_transliterations)) {
-      delete_word(word, key, translit_word_to_keys_);
-    }
-  }
-  if (name.empty()) {
-    if (it != key_to_name_.end()) {
-      key_to_name_.erase(it);
-    }
-    key_to_rating_.erase(key);
-    return;
-  }
-
-  vector<string> transliterations;
-  for (auto &word : get_words(name)) {
-    add_word(word, key, word_to_keys_);
-
-    for (auto &w : get_word_transliterations(word, false)) {
-      if (w != word) {
-        transliterations.push_back(std::move(w));
-      }
-    }
-  }
-  for (auto &word : fix_words(transliterations)) {
-    add_word(word, key, translit_word_to_keys_);
-  }
-
-  key_to_name_[key] = name.str();
-}
-
-void Hints::set_rating(KeyT key, RatingT rating) {
-  // LOG(ERROR) << "Set rating " << key << ": " << rating;
-  key_to_rating_[key] = rating;
-}
-
-void Hints::add_search_results(vector<KeyT> &results, const string &word,
-                               const std::map<string, vector<KeyT>> &word_to_keys) {
-  LOG(DEBUG) << "Search for word " << word;
-  auto it = word_to_keys.lower_bound(word);
-  while (it != word_to_keys.end() && begins_with(it->first, word)) {
-    append(results, it->second);
-    ++it;
-  }
-}
-
-vector<Hints::KeyT> Hints::search_word(const string &word) const {
-  vector<KeyT> results;
-  add_search_results(results, word, translit_word_to_keys_);
-  for (const auto &w : get_word_transliterations(word, true)) {
-    add_search_results(results, w, word_to_keys_);
-  }
-
-  td::unique(results);
-  return results;
-}
-
-std::pair<size_t, vector<Hints::KeyT>> Hints::search(Slice query, int32 limit, bool return_all_for_empty_query) const {
-  // LOG(ERROR) << "Search " << query;
-  vector<KeyT> results;
-
-  if (limit < 0) {
-    return {key_to_name_.size(), std::move(results)};
-  }
-
-  auto words = get_words(query);
-  if (return_all_for_empty_query && words.empty()) {
-    results.reserve(key_to_name_.size());
-    for (auto &it : key_to_name_) {
-      results.push_back(it.first);
-    }
-  }
-
-  for (size_t i = 0; i < words.size(); i++) {
-    vector<KeyT> keys = search_word(words[i]);
-    if (i == 0) {
-      results = std::move(keys);
-      continue;
-    }
-
-    // now need to intersect two lists
-    size_t results_pos = 0;
-    size_t keys_pos = 0;
-    size_t new_results_size = 0;
-    while (results_pos != results.size() && keys_pos != keys.size()) {
-      if (results[results_pos] < keys[keys_pos]) {
-        results_pos++;
-      } else if (results[results_pos] > keys[keys_pos]) {
-        keys_pos++;
-      } else {
-        results[new_results_size++] = results[results_pos];
-        results_pos++;
-        keys_pos++;
-      }
-    }
-    results.resize(new_results_size);
-  }
-
-  auto total_size = results.size();
-  if (total_size < static_cast<size_t>(limit)) {
-    std::sort(results.begin(), results.end(), CompareByRating(key_to_rating_));
-  } else {
-    std::partial_sort(results.begin(), results.begin() + limit, results.end(), CompareByRating(key_to_rating_));
-    results.resize(limit);
-  }
-
-  return {total_size, std::move(results)};
-}
-
-bool Hints::has_key(KeyT key) const {
-  return key_to_name_.count(key) > 0;
-}
-
-string Hints::key_to_string(KeyT key) const {
-  auto it = key_to_name_.find(key);
-  if (it == key_to_name_.end()) {
-    return string();
-  }
-  return it->second;
-}
-
-std::pair<size_t, vector<Hints::KeyT>> Hints::search_empty(int32 limit) const {
-  return search(Slice(), limit, true);
-}
-
-size_t Hints::size() const {
-  return key_to_name_.size();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Hints.h b/third-party/td/td/tdutils/td/utils/Hints.h
deleted file mode 100644
index 66d645ff2a..0000000000
--- a/third-party/td/td/tdutils/td/utils/Hints.h
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/Slice.h"
-
-#include <map>
-#include <unordered_map>
-#include <utility>
-
-namespace td {
-
-// TODO template KeyT
-class Hints {
-  using KeyT = int64;
-  using RatingT = int64;
-
- public:
-  void add(KeyT key, Slice name);
-
-  void remove(KeyT key) {
-    add(key, "");
-  }
-
-  void set_rating(KeyT key, RatingT rating);
-
-  std::pair<size_t, vector<KeyT>> search(
-      Slice query, int32 limit,
-      bool return_all_for_empty_query = false) const;  // TODO sort by name instead of sort by rating
-
-  bool has_key(KeyT key) const;
-
-  string key_to_string(KeyT key) const;
-
-  std::pair<size_t, vector<KeyT>> search_empty(int32 limit) const;  // == search("", limit, true)
-
-  size_t size() const;
-
-  static vector<string> fix_words(vector<string> words);
-
- private:
-  std::map<string, vector<KeyT>> word_to_keys_;
-  std::map<string, vector<KeyT>> translit_word_to_keys_;
-  std::unordered_map<KeyT, string, Hash<KeyT>> key_to_name_;
-  std::unordered_map<KeyT, RatingT, Hash<KeyT>> key_to_rating_;
-
-  static void add_word(const string &word, KeyT key, std::map<string, vector<KeyT>> &word_to_keys);
-  static void delete_word(const string &word, KeyT key, std::map<string, vector<KeyT>> &word_to_keys);
-
-  static vector<string> get_words(Slice name);
-
-  static void add_search_results(vector<KeyT> &results, const string &word,
-                                 const std::map<string, vector<KeyT>> &word_to_keys);
-
-  vector<KeyT> search_word(const string &word) const;
-
-  class CompareByRating {
-    const std::unordered_map<KeyT, RatingT, Hash<KeyT>> &key_to_rating_;
-
-    RatingT get_rating(const KeyT &key) const {
-      auto it = key_to_rating_.find(key);
-      if (it == key_to_rating_.end()) {
-        return RatingT();
-      }
-      return it->second;
-    }
-
-   public:
-    explicit CompareByRating(const std::unordered_map<KeyT, RatingT, Hash<KeyT>> &key_to_rating)
-        : key_to_rating_(key_to_rating) {
-    }
-
-    bool operator()(const KeyT &lhs, const KeyT &rhs) const {
-      auto lhs_rating = get_rating(lhs);
-      auto rhs_rating = get_rating(rhs);
-      return lhs_rating < rhs_rating || (lhs_rating == rhs_rating && lhs < rhs);
-    }
-  };
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/HttpDate.cpp b/third-party/td/td/tdutils/td/utils/HttpDate.cpp
deleted file mode 100644
index d1efdbaa6c..0000000000
--- a/third-party/td/td/tdutils/td/utils/HttpDate.cpp
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/HttpDate.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/Parser.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-Result<int32> HttpDate::to_unix_time(int32 year, int32 month, int32 day, int32 hour, int32 minute, int32 second) {
-  if (year < 1970 || year > 2037) {
-    return Status::Error("Invalid year");
-  }
-  if (month < 1 || month > 12) {
-    return Status::Error("Invalid month");
-  }
-  if (day < 1 || day > days_in_month(year, month)) {
-    return Status::Error("Invalid day");
-  }
-  if (hour < 0 || hour >= 24) {
-    return Status::Error("Invalid hour");
-  }
-  if (minute < 0 || minute >= 60) {
-    return Status::Error("Invalid minute");
-  }
-  if (second < 0 || second > 60) {
-    return Status::Error("Invalid second");
-  }
-
-  int32 res = 0;
-  for (int32 y = 1970; y < year; y++) {
-    res += (is_leap(y) + 365) * seconds_in_day();
-  }
-  for (int32 m = 1; m < month; m++) {
-    res += days_in_month(year, m) * seconds_in_day();
-  }
-  res += (day - 1) * seconds_in_day();
-  res += hour * 60 * 60;
-  res += minute * 60;
-  res += second;
-  return res;
-}
-
-Result<int32> HttpDate::parse_http_date(string slice) {
-  Parser p(slice);
-  p.read_till(',');  // ignore week day
-  p.skip(',');
-  p.skip_whitespaces();
-  p.skip_nofail('0');
-  TRY_RESULT(day, to_integer_safe<int32>(p.read_word()));
-  auto month_name = p.read_word();
-  to_lower_inplace(month_name);
-  TRY_RESULT(year, to_integer_safe<int32>(p.read_word()));
-  p.skip_whitespaces();
-  p.skip_nofail('0');
-  TRY_RESULT(hour, to_integer_safe<int32>(p.read_till(':')));
-  p.skip(':');
-  p.skip_nofail('0');
-  TRY_RESULT(minute, to_integer_safe<int32>(p.read_till(':')));
-  p.skip(':');
-  p.skip_nofail('0');
-  TRY_RESULT(second, to_integer_safe<int32>(p.read_word()));
-  auto gmt = p.read_word();
-  TRY_STATUS(std::move(p.status()));
-  if (gmt != "GMT") {
-    return Status::Error("Timezone must be GMT");
-  }
-
-  static Slice month_names[12] = {"jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"};
-
-  int month = 0;
-
-  for (int m = 1; m <= 12; m++) {
-    if (month_names[m - 1] == month_name) {
-      month = m;
-      break;
-    }
-  }
-
-  if (month == 0) {
-    return Status::Error("Unknown month name");
-  }
-
-  return to_unix_time(year, month, day, hour, minute, second);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/HttpDate.h b/third-party/td/td/tdutils/td/utils/HttpDate.h
deleted file mode 100644
index 3288685e32..0000000000
--- a/third-party/td/td/tdutils/td/utils/HttpDate.h
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class HttpDate {
-  static bool is_leap(int32 year) {
-    return year % 4 == 0 && (year % 100 != 0 || year % 400 == 0);
-  }
-
-  static int32 seconds_in_day() {
-    return 24 * 60 * 60;
-  }
-
- public:
-  static int32 days_in_month(int32 year, int32 month) {
-    static int cnt[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-    return cnt[month - 1] + (month == 2 && is_leap(year));
-  }
-
-  static Result<int32> to_unix_time(int32 year, int32 month, int32 day, int32 hour, int32 minute, int32 second);
-
-  static Result<int32> parse_http_date(string slice);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/HttpUrl.cpp b/third-party/td/td/tdutils/td/utils/HttpUrl.cpp
deleted file mode 100644
index 55869002a9..0000000000
--- a/third-party/td/td/tdutils/td/utils/HttpUrl.cpp
+++ /dev/null
@@ -1,272 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/HttpUrl.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Parser.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <algorithm>
-
-namespace td {
-
-string HttpUrl::get_url() const {
-  string result;
-  switch (protocol_) {
-    case Protocol::Http:
-      result += "http://";
-      break;
-    case Protocol::Https:
-      result += "https://";
-      break;
-    default:
-      UNREACHABLE();
-  }
-  if (!userinfo_.empty()) {
-    result += userinfo_;
-    result += '@';
-  }
-  result += host_;
-  if (specified_port_ > 0) {
-    result += ':';
-    result += to_string(specified_port_);
-  }
-  LOG_CHECK(!query_.empty() && query_[0] == '/') << query_;
-  result += query_;
-  return result;
-}
-
-Result<HttpUrl> parse_url(Slice url, HttpUrl::Protocol default_protocol) {
-  // url == [https?://][userinfo@]host[:port]
-  ConstParser parser(url);
-  string protocol_str = to_lower(parser.read_till_nofail(":/?#@[]"));
-
-  HttpUrl::Protocol protocol;
-  if (parser.try_skip("://")) {
-    if (protocol_str == "http") {
-      protocol = HttpUrl::Protocol::Http;
-    } else if (protocol_str == "https") {
-      protocol = HttpUrl::Protocol::Https;
-    } else {
-      return Status::Error("Unsupported URL protocol");
-    }
-  } else {
-    parser = ConstParser(url);
-    protocol = default_protocol;
-  }
-  Slice userinfo_host_port = parser.read_till_nofail("/?#");
-
-  int port = 0;
-  const char *colon = userinfo_host_port.end() - 1;
-  while (colon > userinfo_host_port.begin() && *colon != ':' && *colon != ']' && *colon != '@') {
-    colon--;
-  }
-  Slice userinfo_host;
-  if (colon > userinfo_host_port.begin() && *colon == ':') {
-    Slice port_slice(colon + 1, userinfo_host_port.end());
-    while (port_slice.size() > 1 && port_slice[0] == '0') {
-      port_slice.remove_prefix(1);
-    }
-    auto r_port = to_integer_safe<int>(port_slice);
-    if (r_port.is_error() || r_port.ok() == 0) {
-      port = -1;
-    } else {
-      port = r_port.ok();
-    }
-    userinfo_host = Slice(userinfo_host_port.begin(), colon);
-  } else {
-    userinfo_host = userinfo_host_port;
-  }
-  if (port < 0 || port > 65535) {
-    return Status::Error("Wrong port number specified in the URL");
-  }
-
-  auto at_pos = userinfo_host.rfind('@');
-  Slice userinfo = at_pos == static_cast<size_t>(-1) ? "" : userinfo_host.substr(0, at_pos);
-  Slice host = userinfo_host.substr(at_pos + 1);
-
-  bool is_ipv6 = false;
-  if (!host.empty() && host[0] == '[' && host.back() == ']') {
-    IPAddress ip_address;
-    if (ip_address.init_ipv6_port(host.str(), 1).is_error()) {
-      return Status::Error("Wrong IPv6 address specified in the URL");
-    }
-    CHECK(ip_address.is_ipv6());
-    is_ipv6 = true;
-  }
-  if (host.empty()) {
-    return Status::Error("URL host is empty");
-  }
-  if (host == ".") {
-    return Status::Error("Host is invalid");
-  }
-
-  int specified_port = port;
-  if (port == 0) {
-    if (protocol == HttpUrl::Protocol::Http) {
-      port = 80;
-    } else {
-      CHECK(protocol == HttpUrl::Protocol::Https);
-      port = 443;
-    }
-  }
-
-  Slice query = parser.read_all();
-  while (!query.empty() && is_space(query.back())) {
-    query.remove_suffix(1);
-  }
-  if (query.empty()) {
-    query = Slice("/");
-  }
-  string query_str;
-  if (query[0] != '/') {
-    query_str = '/';
-  }
-  for (auto c : query) {
-    if (static_cast<unsigned char>(c) <= 0x20) {
-      query_str += '%';
-      query_str += "0123456789ABCDEF"[c / 16];
-      query_str += "0123456789ABCDEF"[c % 16];
-    } else {
-      query_str += c;
-    }
-  }
-
-  auto check_url_part = [](Slice part, Slice name, bool allow_colon) {
-    for (size_t i = 0; i < part.size(); i++) {
-      char c = part[i];
-      if (is_alnum(c) || c == '.' || c == '-' || c == '_' || c == '!' || c == '$' || c == ',' || c == '~' || c == '*' ||
-          c == '\'' || c == '(' || c == ')' || c == ';' || c == '&' || c == '+' || c == '=' ||
-          (allow_colon && c == ':')) {
-        // symbols allowed by RFC 7230 and RFC 3986
-        continue;
-      }
-      if (c == '%') {
-        c = part[++i];
-        if (is_hex_digit(c)) {
-          c = part[++i];
-          if (is_hex_digit(c)) {
-            // percent encoded symbol as allowed by RFC 7230 and RFC 3986
-            continue;
-          }
-        }
-        return Status::Error(PSLICE() << "Wrong percent-encoded symbol in URL " << name);
-      }
-
-      // all other symbols aren't allowed
-      auto uc = static_cast<unsigned char>(c);
-      if (uc >= 128) {
-        // but we allow plain UTF-8 symbols
-        continue;
-      }
-      return Status::Error(PSLICE() << "Disallowed character in URL " << name);
-    }
-    return Status::OK();
-  };
-
-  string host_str = to_lower(host);
-  if (is_ipv6) {
-    for (size_t i = 1; i + 1 < host_str.size(); i++) {
-      char c = host_str[i];
-      if (c == ':' || ('0' <= c && c <= '9') || ('a' <= c && c <= 'f') || c == '.') {
-        continue;
-      }
-      return Status::Error("Wrong IPv6 URL host");
-    }
-  } else {
-    TRY_STATUS(check_url_part(host_str, "host", false));
-    TRY_STATUS(check_url_part(userinfo, "userinfo", true));
-  }
-
-  return HttpUrl{protocol, userinfo.str(), std::move(host_str), is_ipv6, specified_port, port, std::move(query_str)};
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const HttpUrl &url) {
-  sb << tag("protocol", url.protocol_ == HttpUrl::Protocol::Http ? "HTTP" : "HTTPS") << tag("userinfo", url.userinfo_)
-     << tag("host", url.host_) << tag("port", url.port_) << tag("query", url.query_);
-  return sb;
-}
-
-HttpUrlQuery parse_url_query(Slice query) {
-  if (!query.empty() && query[0] == '/') {
-    query.remove_prefix(1);
-  }
-
-  size_t path_size = 0;
-  while (path_size < query.size() && query[path_size] != '?' && query[path_size] != '#') {
-    path_size++;
-  }
-
-  HttpUrlQuery result;
-  result.path_ = full_split(url_decode(query.substr(0, path_size), false), '/');
-  while (!result.path_.empty() && result.path_.back().empty()) {
-    result.path_.pop_back();
-  }
-
-  if (path_size < query.size() && query[path_size] == '?') {
-    query = query.substr(path_size + 1);
-    query.truncate(query.find('#'));
-
-    ConstParser parser(query);
-    while (!parser.data().empty()) {
-      auto key_value = split(parser.read_till_nofail('&'), '=');
-      parser.skip_nofail('&');
-      auto key = url_decode(key_value.first, true);
-      if (!key.empty()) {
-        result.args_.emplace_back(std::move(key), url_decode(key_value.second, true));
-      }
-    }
-    CHECK(parser.status().is_ok());
-  }
-
-  return result;
-}
-
-bool HttpUrlQuery::has_arg(Slice key) const {
-  auto it =
-      std::find_if(args_.begin(), args_.end(), [&key](const std::pair<string, string> &s) { return s.first == key; });
-  return it != args_.end();
-}
-
-Slice HttpUrlQuery::get_arg(Slice key) const {
-  auto it =
-      std::find_if(args_.begin(), args_.end(), [&key](const std::pair<string, string> &s) { return s.first == key; });
-  return it == args_.end() ? Slice() : it->second;
-}
-
-string get_url_host(Slice url) {
-  auto r_http_url = parse_url(url);
-  if (r_http_url.is_error()) {
-    return string();
-  }
-  return r_http_url.ok().host_;
-}
-
-string get_url_query_file_name(const string &query) {
-  Slice query_slice = query;
-  query_slice.truncate(query.find_first_of("?#"));
-
-  auto slash_pos = query_slice.rfind('/');
-  if (slash_pos < query_slice.size()) {
-    return query_slice.substr(slash_pos + 1).str();
-  }
-  return query_slice.str();
-}
-
-string get_url_file_name(Slice url) {
-  auto r_http_url = parse_url(url);
-  if (r_http_url.is_error()) {
-    LOG(WARNING) << "Receive wrong URL \"" << url << '"';
-    return string();
-  }
-  return get_url_query_file_name(r_http_url.ok().query_);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/HttpUrl.h b/third-party/td/td/tdutils/td/utils/HttpUrl.h
deleted file mode 100644
index 1e5ad24368..0000000000
--- a/third-party/td/td/tdutils/td/utils/HttpUrl.h
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <utility>
-
-namespace td {
-
-class HttpUrl {
- public:
-  enum class Protocol { Http, Https } protocol_ = Protocol::Http;
-  string userinfo_;
-  string host_;
-  bool is_ipv6_ = false;
-  int specified_port_ = 0;
-  int port_ = 0;
-  string query_;
-
-  string get_url() const;
-
-  HttpUrl(Protocol protocol, string userinfo, string host, bool is_ipv6, int specified_port, int port, string query)
-      : protocol_(protocol)
-      , userinfo_(std::move(userinfo))
-      , host_(std::move(host))
-      , is_ipv6_(is_ipv6)
-      , specified_port_(specified_port)
-      , port_(port)
-      , query_(std::move(query)) {
-  }
-};
-
-Result<HttpUrl> parse_url(Slice url,
-                          HttpUrl::Protocol default_protocol = HttpUrl::Protocol::Http) TD_WARN_UNUSED_RESULT;
-
-StringBuilder &operator<<(StringBuilder &sb, const HttpUrl &url);
-
-class HttpUrlQuery {
- public:
-  vector<string> path_;
-  vector<std::pair<string, string>> args_;
-
-  bool has_arg(Slice key) const;
-
-  Slice get_arg(Slice key) const;
-};
-
-HttpUrlQuery parse_url_query(Slice query);
-
-string get_url_host(Slice url);
-
-string get_url_query_file_name(const string &query);
-
-string get_url_file_name(Slice url);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/JsonBuilder.cpp b/third-party/td/td/tdutils/td/utils/JsonBuilder.cpp
deleted file mode 100644
index 9263a2027e..0000000000
--- a/third-party/td/td/tdutils/td/utils/JsonBuilder.cpp
+++ /dev/null
@@ -1,745 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/JsonBuilder.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-StringBuilder &operator<<(StringBuilder &sb, const JsonRawString &val) {
-  sb << '"';
-  SCOPE_EXIT {
-    sb << '"';
-  };
-  auto *s = val.value_.begin();
-  auto len = val.value_.size();
-
-  for (size_t pos = 0; pos < len; pos++) {
-    auto ch = static_cast<unsigned char>(s[pos]);
-    switch (ch) {
-      case '"':
-        sb << '\\' << '"';
-        break;
-      case '\\':
-        sb << '\\' << '\\';
-        break;
-      case '\b':
-        sb << '\\' << 'b';
-        break;
-      case '\f':
-        sb << '\\' << 'f';
-        break;
-      case '\n':
-        sb << '\\' << 'n';
-        break;
-      case '\r':
-        sb << '\\' << 'r';
-        break;
-      case '\t':
-        sb << '\\' << 't';
-        break;
-      default:
-        if (ch <= 31) {
-          sb << JsonOneChar(s[pos]);
-          break;
-        }
-        sb << s[pos];
-        break;
-    }
-  }
-  return sb;
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const JsonString &val) {
-  sb << '"';
-  SCOPE_EXIT {
-    sb << '"';
-  };
-  auto *s = val.str_.begin();
-  auto len = val.str_.size();
-
-  for (size_t pos = 0; pos < len; pos++) {
-    auto ch = static_cast<unsigned char>(s[pos]);
-    switch (ch) {
-      case '"':
-        sb << '\\' << '"';
-        break;
-      case '\\':
-        sb << '\\' << '\\';
-        break;
-      case '\b':
-        sb << '\\' << 'b';
-        break;
-      case '\f':
-        sb << '\\' << 'f';
-        break;
-      case '\n':
-        sb << '\\' << 'n';
-        break;
-      case '\r':
-        sb << '\\' << 'r';
-        break;
-      case '\t':
-        sb << '\\' << 't';
-        break;
-      default:
-        if (ch <= 31) {
-          sb << JsonOneChar(s[pos]);
-          break;
-        }
-        if (128 <= ch) {
-          uint32 a = ch;
-          CHECK((a & 0x40) != 0);
-
-          CHECK(pos + 1 < len);
-          uint32 b = static_cast<unsigned char>(s[++pos]);
-          CHECK((b & 0xc0) == 0x80);
-          if ((a & 0x20) == 0) {
-            CHECK((a & 0x1e) > 0);
-            sb << JsonChar(((a & 0x1f) << 6) | (b & 0x3f));
-            break;
-          }
-
-          CHECK(pos + 1 < len);
-          uint32 c = static_cast<unsigned char>(s[++pos]);
-          CHECK((c & 0xc0) == 0x80);
-          if ((a & 0x10) == 0) {
-            CHECK(((a & 0x0f) | (b & 0x20)) > 0);
-            sb << JsonChar(((a & 0x0f) << 12) | ((b & 0x3f) << 6) | (c & 0x3f));
-            break;
-          }
-
-          CHECK(pos + 1 < len);
-          uint32 d = static_cast<unsigned char>(s[++pos]);
-          CHECK((d & 0xc0) == 0x80);
-          if ((a & 0x08) == 0) {
-            CHECK(((a & 0x07) | (b & 0x30)) > 0);
-            sb << JsonChar(((a & 0x07) << 18) | ((b & 0x3f) << 12) | ((c & 0x3f) << 6) | (d & 0x3f));
-            break;
-          }
-
-          UNREACHABLE();
-          break;
-        }
-        sb << s[pos];
-        break;
-    }
-  }
-  return sb;
-}
-
-Result<MutableSlice> json_string_decode(Parser &parser) {
-  if (!parser.try_skip('"')) {
-    return Status::Error("Opening '\"' expected");
-  }
-  auto data = parser.data();
-  auto *result_start = data.ubegin();
-  auto *cur_src = result_start;
-  auto *cur_dest = result_start;
-  auto *end = data.uend();
-
-  while (true) {
-    if (cur_src == end) {
-      return Status::Error("Closing '\"' not found");
-    }
-    if (*cur_src == '"') {
-      parser.advance(cur_src + 1 - result_start);
-      return data.substr(0, cur_dest - result_start);
-    }
-    if (*cur_src == '\\') {
-      cur_src++;
-      if (cur_src == end) {
-        return Status::Error("Closing '\"' not found");
-      }
-      switch (*cur_src) {
-        case 'b':
-          *cur_dest++ = '\b';
-          cur_src++;
-          break;
-        case 'f':
-          *cur_dest++ = '\f';
-          cur_src++;
-          break;
-        case 'n':
-          *cur_dest++ = '\n';
-          cur_src++;
-          break;
-        case 'r':
-          *cur_dest++ = '\r';
-          cur_src++;
-          break;
-        case 't':
-          *cur_dest++ = '\t';
-          cur_src++;
-          break;
-        case 'u': {
-          cur_src++;
-          if (cur_src + 4 > end) {
-            return Status::Error("\\u has less than 4 symbols");
-          }
-          uint32 num = 0;
-          for (int i = 0; i < 4; i++, cur_src++) {
-            int d = hex_to_int(*cur_src);
-            if (d == 16) {
-              return Status::Error("Invalid \\u -- not hex digit");
-            }
-            num = num * 16 + d;
-          }
-          if (0xD7FF < num && num < 0xE000) {
-            if (cur_src + 6 <= end && cur_src[0] == '\\' && cur_src[1] == 'u') {
-              cur_src += 2;
-              int new_num = 0;
-              for (int i = 0; i < 4; i++, cur_src++) {
-                int d = hex_to_int(*cur_src);
-                if (d == 16) {
-                  return Status::Error("Invalid \\u -- not hex digit");
-                }
-                new_num = new_num * 16 + d;
-              }
-              if (0xD7FF < new_num && new_num < 0xE000) {
-                num = (((num & 0x3FF) << 10) | (new_num & 0x3FF)) + 0x10000;
-              } else {
-                cur_src -= 6;
-              }
-            }
-          }
-
-          cur_dest = append_utf8_character_unsafe(cur_dest, num);
-          break;
-        }
-        default:
-          *cur_dest++ = *cur_src++;
-          break;
-      }
-    } else {
-      *cur_dest++ = *cur_src++;
-    }
-  }
-  UNREACHABLE();
-  return {};
-}
-
-Status json_string_skip(Parser &parser) {
-  if (!parser.try_skip('"')) {
-    return Status::Error("Opening '\"' expected");
-  }
-  auto data = parser.data();
-  auto *cur_src = data.ubegin();
-  auto *end = data.uend();
-
-  while (true) {
-    if (cur_src == end) {
-      return Status::Error("Closing '\"' not found");
-    }
-    if (*cur_src == '"') {
-      parser.advance(cur_src + 1 - data.ubegin());
-      return Status::OK();
-    }
-    if (*cur_src == '\\') {
-      cur_src++;
-      if (cur_src == end) {
-        return Status::Error("Closing '\"' not found");
-      }
-      switch (*cur_src) {
-        case 'u': {
-          cur_src++;
-          if (cur_src + 4 > end) {
-            return Status::Error("\\u has less than 4 symbols");
-          }
-          int num = 0;
-          for (int i = 0; i < 4; i++, cur_src++) {
-            int d = hex_to_int(*cur_src);
-            if (d == 16) {
-              return Status::Error("Invalid \\u -- not hex digit");
-            }
-            num = num * 16 + d;
-          }
-          if (0xD7FF < num && num < 0xE000) {
-            if (cur_src + 6 <= end && cur_src[0] == '\\' && cur_src[1] == 'u') {
-              cur_src += 2;
-              int new_num = 0;
-              for (int i = 0; i < 4; i++, cur_src++) {
-                int d = hex_to_int(*cur_src);
-                if (d == 16) {
-                  return Status::Error("Invalid \\u -- not hex digit");
-                }
-                new_num = new_num * 16 + d;
-              }
-              if (0xD7FF < new_num && new_num < 0xE000) {
-                // num = (((num & 0x3FF) << 10) | (new_num & 0x3FF)) + 0x10000;
-              } else {
-                cur_src -= 6;
-              }
-            }
-          }
-          break;
-        }
-        default:
-          cur_src++;
-          break;
-      }
-    } else {
-      cur_src++;
-    }
-  }
-  UNREACHABLE();
-  return Status::OK();
-}
-
-Result<JsonValue> do_json_decode(Parser &parser, int32 max_depth) {
-  if (max_depth < 0) {
-    return Status::Error("Too big object depth");
-  }
-
-  parser.skip_whitespaces();
-  switch (parser.peek_char()) {
-    case 'f':
-      if (parser.try_skip("false")) {
-        return JsonValue::create_boolean(false);
-      }
-      return Status::Error("Token starts with 'f' -- false expected");
-    case 't':
-      if (parser.try_skip("true")) {
-        return JsonValue::create_boolean(true);
-      }
-      return Status::Error("Token starts with 't' -- true expected");
-    case 'n':
-      if (parser.try_skip("null")) {
-        return JsonValue();
-      }
-      return Status::Error("Token starts with 'n' -- null expected");
-    case '"': {
-      TRY_RESULT(slice, json_string_decode(parser));
-      return JsonValue::create_string(slice);
-    }
-    case '[': {
-      parser.skip('[');
-      parser.skip_whitespaces();
-      vector<JsonValue> res;
-      if (parser.try_skip(']')) {
-        return JsonValue::create_array(std::move(res));
-      }
-      while (true) {
-        if (parser.empty()) {
-          return Status::Error("Unexpected string end");
-        }
-        TRY_RESULT(value, do_json_decode(parser, max_depth - 1));
-        res.emplace_back(std::move(value));
-
-        parser.skip_whitespaces();
-        if (parser.try_skip(']')) {
-          break;
-        }
-        if (parser.try_skip(',')) {
-          parser.skip_whitespaces();
-          continue;
-        }
-        if (parser.empty()) {
-          return Status::Error("Unexpected string end");
-        }
-        return Status::Error("Unexpected symbol while parsing JSON Array");
-      }
-      return JsonValue::create_array(std::move(res));
-    }
-    case '{': {
-      parser.skip('{');
-      parser.skip_whitespaces();
-      if (parser.try_skip('}')) {
-        return JsonValue::make_object(JsonObject());
-      }
-      vector<std::pair<Slice, JsonValue>> field_values;
-      while (true) {
-        if (parser.empty()) {
-          return Status::Error("Unexpected string end");
-        }
-        TRY_RESULT(field, json_string_decode(parser));
-        parser.skip_whitespaces();
-        if (!parser.try_skip(':')) {
-          return Status::Error("':' expected");
-        }
-        TRY_RESULT(value, do_json_decode(parser, max_depth - 1));
-        field_values.emplace_back(field, std::move(value));
-
-        parser.skip_whitespaces();
-        if (parser.try_skip('}')) {
-          break;
-        }
-        if (parser.try_skip(',')) {
-          parser.skip_whitespaces();
-          continue;
-        }
-        if (parser.empty()) {
-          return Status::Error("Unexpected string end");
-        }
-        return Status::Error("Unexpected symbol while parsing JSON Object");
-      }
-      return JsonValue::make_object(JsonObject(std::move(field_values)));
-    }
-    case '-':
-    case '+':
-    case '.':
-    case '0':
-    case '1':
-    case '2':
-    case '3':
-    case '4':
-    case '5':
-    case '6':
-    case '7':
-    case '8':
-    case '9': {
-      auto num = parser.read_while(
-          [](char c) { return c == '-' || ('0' <= c && c <= '9') || c == 'e' || c == 'E' || c == '+' || c == '.'; });
-      return JsonValue::create_number(num);
-    }
-    case 0:
-      return Status::Error("Unexpected string end");
-    default: {
-      char next = parser.peek_char();
-      if (0 < next && next < 127) {
-        return Status::Error(PSLICE() << "Unexpected symbol '" << parser.peek_char() << "'");
-      } else {
-        return Status::Error("Unexpected symbol");
-      }
-    }
-  }
-  UNREACHABLE();
-}
-
-Status do_json_skip(Parser &parser, int32 max_depth) {
-  if (max_depth < 0) {
-    return Status::Error("Too big object depth");
-  }
-
-  parser.skip_whitespaces();
-  switch (parser.peek_char()) {
-    case 'f':
-      if (parser.try_skip("false")) {
-        return Status::OK();
-      }
-      return Status::Error("Starts with 'f' -- false expected");
-    case 't':
-      if (parser.try_skip("true")) {
-        return Status::OK();
-      }
-      return Status::Error("Starts with 't' -- true expected");
-    case 'n':
-      if (parser.try_skip("null")) {
-        return Status::OK();
-      }
-      return Status::Error("Starts with 'n' -- null expected");
-    case '"': {
-      return json_string_skip(parser);
-    }
-    case '[': {
-      parser.skip('[');
-      parser.skip_whitespaces();
-      if (parser.try_skip(']')) {
-        return Status::OK();
-      }
-      while (true) {
-        if (parser.empty()) {
-          return Status::Error("Unexpected end");
-        }
-        TRY_STATUS(do_json_skip(parser, max_depth - 1));
-
-        parser.skip_whitespaces();
-        if (parser.try_skip(']')) {
-          break;
-        }
-        if (parser.try_skip(',')) {
-          parser.skip_whitespaces();
-          continue;
-        }
-        return Status::Error("Unexpected symbol");
-      }
-      return Status::OK();
-    }
-    case '{': {
-      parser.skip('{');
-      parser.skip_whitespaces();
-      if (parser.try_skip('}')) {
-        return Status::OK();
-      }
-      while (true) {
-        if (parser.empty()) {
-          return Status::Error("Unexpected end");
-        }
-        TRY_STATUS(json_string_skip(parser));
-        parser.skip_whitespaces();
-        if (!parser.try_skip(':')) {
-          return Status::Error("':' expected");
-        }
-        TRY_STATUS(do_json_skip(parser, max_depth - 1));
-
-        parser.skip_whitespaces();
-        if (parser.try_skip('}')) {
-          break;
-        }
-        if (parser.try_skip(',')) {
-          parser.skip_whitespaces();
-          continue;
-        }
-        return Status::Error("Unexpected symbol");
-      }
-      return Status::OK();
-    }
-    case '-':
-    case '+':
-    case '.':
-    case '0':
-    case '1':
-    case '2':
-    case '3':
-    case '4':
-    case '5':
-    case '6':
-    case '7':
-    case '8':
-    case '9': {
-      parser.read_while(
-          [](char c) { return c == '-' || ('0' <= c && c <= '9') || c == 'e' || c == 'E' || c == '+' || c == '.'; });
-      return Status::OK();
-    }
-    case 0:
-      return Status::Error("Unexpected end");
-    default: {
-      char next = parser.peek_char();
-      if (0 < next && next < 127) {
-        return Status::Error(PSLICE() << "Unexpected symbol '" << parser.peek_char() << "'");
-      } else {
-        return Status::Error("Unexpected symbol");
-      }
-    }
-  }
-  return Status::Error("Can't parse");
-}
-
-Slice JsonValue::get_type_name(Type type) {
-  switch (type) {
-    case Type::Null:
-      return Slice("Null");
-    case Type::Number:
-      return Slice("Number");
-    case Type::Boolean:
-      return Slice("Boolean");
-    case Type::String:
-      return Slice("String");
-    case Type::Array:
-      return Slice("Array");
-    case Type::Object:
-      return Slice("Object");
-    default:
-      UNREACHABLE();
-      return Slice("Unknown");
-  }
-}
-
-JsonObject::JsonObject(vector<std::pair<Slice, JsonValue>> &&field_values) : field_values_(std::move(field_values)) {
-}
-
-size_t JsonObject::field_count() const {
-  return field_values_.size();
-}
-
-JsonValue JsonObject::extract_field(Slice name) {
-  for (auto &field_value : field_values_) {
-    if (field_value.first == name) {
-      return std::move(field_value.second);
-    }
-  }
-  return JsonValue();
-}
-
-Result<JsonValue> JsonObject::extract_optional_field(Slice name, JsonValueType type) {
-  for (auto &field_value : field_values_) {
-    if (field_value.first == name) {
-      if (type != JsonValue::Type::Null && field_value.second.type() != type) {
-        return Status::Error(400, PSLICE()
-                                      << "Field \"" << name << "\" must be of type " << JsonValue::get_type_name(type));
-      }
-
-      return std::move(field_value.second);
-    }
-  }
-  return JsonValue();
-}
-
-Result<JsonValue> JsonObject::extract_required_field(Slice name, JsonValueType type) {
-  for (auto &field_value : field_values_) {
-    if (field_value.first == name) {
-      if (type != JsonValue::Type::Null && field_value.second.type() != type) {
-        return Status::Error(400, PSLICE()
-                                      << "Field \"" << name << "\" must be of type " << JsonValue::get_type_name(type));
-      }
-
-      return std::move(field_value.second);
-    }
-  }
-  return Status::Error(400, PSLICE() << "Can't find field \"" << name << "\"");
-}
-
-const JsonValue *JsonObject::get_field(Slice name) const {
-  for (auto &field_value : field_values_) {
-    if (field_value.first == name) {
-      return &field_value.second;
-    }
-  }
-  return nullptr;
-}
-
-bool JsonObject::has_field(Slice name) const {
-  return get_field(name) != nullptr;
-}
-
-Result<bool> JsonObject::get_optional_bool_field(Slice name, bool default_value) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::Boolean) {
-      return value->get_boolean();
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be of type Boolean");
-  }
-  return default_value;
-}
-
-Result<bool> JsonObject::get_required_bool_field(Slice name) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::Boolean) {
-      return value->get_boolean();
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be of type Boolean");
-  }
-  return Status::Error(400, PSLICE() << "Can't find field \"" << name << '"');
-}
-
-template <class T>
-static Result<T> get_integer_field(Slice name, Slice value) {
-  auto r_int = to_integer_safe<T>(value);
-  if (r_int.is_ok()) {
-    return r_int.ok();
-  }
-  return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be a valid Number");
-}
-
-Result<int32> JsonObject::get_optional_int_field(Slice name, int32 default_value) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::String) {
-      return get_integer_field<int32>(name, value->get_string());
-    }
-    if (value->type() == JsonValue::Type::Number) {
-      return get_integer_field<int32>(name, value->get_number());
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be a Number");
-  }
-  return default_value;
-}
-
-Result<int32> JsonObject::get_required_int_field(Slice name) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::String) {
-      return get_integer_field<int32>(name, value->get_string());
-    }
-    if (value->type() == JsonValue::Type::Number) {
-      return get_integer_field<int32>(name, value->get_number());
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be a Number");
-  }
-  return Status::Error(400, PSLICE() << "Can't find field \"" << name << '"');
-}
-
-Result<int64> JsonObject::get_optional_long_field(Slice name, int64 default_value) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::String) {
-      return get_integer_field<int64>(name, value->get_string());
-    }
-    if (value->type() == JsonValue::Type::Number) {
-      return get_integer_field<int64>(name, value->get_number());
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be a Number");
-  }
-  return default_value;
-}
-
-Result<int64> JsonObject::get_required_long_field(Slice name) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::String) {
-      return get_integer_field<int64>(name, value->get_string());
-    }
-    if (value->type() == JsonValue::Type::Number) {
-      return get_integer_field<int64>(name, value->get_number());
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be a Number");
-  }
-  return Status::Error(400, PSLICE() << "Can't find field \"" << name << '"');
-}
-
-Result<double> JsonObject::get_optional_double_field(Slice name, double default_value) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::Number) {
-      return to_double(value->get_number());
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be of type Number");
-  }
-  return default_value;
-}
-
-Result<double> JsonObject::get_required_double_field(Slice name) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::Number) {
-      return to_double(value->get_number());
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be of type Number");
-  }
-  return Status::Error(400, PSLICE() << "Can't find field \"" << name << '"');
-}
-
-Result<string> JsonObject::get_optional_string_field(Slice name, string default_value) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::String) {
-      return value->get_string().str();
-    }
-    if (value->type() == JsonValue::Type::Number) {
-      return value->get_number().str();
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be of type String");
-  }
-  return std::move(default_value);
-}
-
-Result<string> JsonObject::get_required_string_field(Slice name) const {
-  auto value = get_field(name);
-  if (value != nullptr) {
-    if (value->type() == JsonValue::Type::String) {
-      return value->get_string().str();
-    }
-    if (value->type() == JsonValue::Type::Number) {
-      return value->get_number().str();
-    }
-    return Status::Error(400, PSLICE() << "Field \"" << name << "\" must be of type String");
-  }
-  return Status::Error(400, PSLICE() << "Can't find field \"" << name << '"');
-}
-
-void JsonObject::foreach(const std::function<void(Slice name, const JsonValue &value)> &callback) const {
-  for (auto &field_value : field_values_) {
-    callback(field_value.first, field_value.second);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/JsonBuilder.h b/third-party/td/td/tdutils/td/utils/JsonBuilder.h
deleted file mode 100644
index 1bccdfcc7a..0000000000
--- a/third-party/td/td/tdutils/td/utils/JsonBuilder.h
+++ /dev/null
@@ -1,895 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Parser.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <functional>
-#include <new>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-class JsonTrue {
- public:
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonTrue &val) {
-    return sb << "true";
-  }
-};
-
-class JsonFalse {
- public:
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonFalse &val) {
-    return sb << "false";
-  }
-};
-
-class JsonNull {
- public:
-  friend StringBuilder &operator<<(StringBuilder &sb, JsonNull val) {
-    return sb << "null";
-  }
-};
-
-class JsonBool {
- public:
-  explicit JsonBool(bool value) : value_(value) {
-  }
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonBool &val) {
-    if (val.value_) {
-      return sb << JsonTrue();
-    } else {
-      return sb << JsonFalse();
-    }
-  }
-
- private:
-  bool value_;
-};
-
-class JsonInt {
- public:
-  explicit JsonInt(int32 value) : value_(value) {
-  }
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonInt &val) {
-    return sb << val.value_;
-  }
-
- private:
-  int32 value_;
-};
-
-class JsonLong {
- public:
-  explicit JsonLong(int64 value) : value_(value) {
-  }
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonLong &val) {
-    return sb << val.value_;
-  }
-
- private:
-  int64 value_;
-};
-
-class JsonFloat {
- public:
-  explicit JsonFloat(double value) : value_(value) {
-  }
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonFloat &val) {
-    return sb << val.value_;
-  }
-
- private:
-  double value_;
-};
-
-class JsonOneChar {
- public:
-  explicit JsonOneChar(uint32 c) : c_(c) {
-  }
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonOneChar &val) {
-    auto c = val.c_;
-    return sb << '\\' << 'u' << "0123456789abcdef"[c >> 12] << "0123456789abcdef"[(c >> 8) & 15]
-              << "0123456789abcdef"[(c >> 4) & 15] << "0123456789abcdef"[c & 15];
-  }
-
- private:
-  uint32 c_;
-};
-
-class JsonChar {
- public:
-  explicit JsonChar(uint32 c) : c_(c) {
-  }
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonChar &val) {
-    auto c = val.c_;
-    if (c < 0x10000) {
-      if (0xD7FF < c && c < 0xE000) {
-        // UTF-8 correctness has already been checked
-        UNREACHABLE();
-      }
-      return sb << JsonOneChar(c);
-    } else if (c <= 0x10ffff) {
-      return sb << JsonOneChar(0xD7C0 + (c >> 10)) << JsonOneChar(0xDC00 + (c & 0x3FF));
-    } else {
-      // UTF-8 correctness has already been checked
-      UNREACHABLE();
-    }
-  }
-
- private:
-  uint32 c_;
-};
-
-class JsonRaw {
- public:
-  explicit JsonRaw(Slice value) : value_(value) {
-  }
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonRaw &val) {
-    return sb << val.value_;
-  }
-
- private:
-  Slice value_;
-};
-
-class JsonRawString {
- public:
-  explicit JsonRawString(Slice value) : value_(value) {
-  }
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonRawString &val);
-
- private:
-  Slice value_;
-};
-
-class JsonString {
- public:
-  explicit JsonString(Slice str) : str_(str) {
-  }
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const JsonString &val);
-
- private:
-  Slice str_;
-};
-
-class JsonScope;
-class JsonValueScope;
-class JsonArrayScope;
-class JsonObjectScope;
-
-class JsonBuilder {
- public:
-  explicit JsonBuilder(StringBuilder &&sb = {}, int32 offset = -1) : sb_(std::move(sb)), offset_(offset) {
-  }
-  StringBuilder &string_builder() {
-    return sb_;
-  }
-  friend class JsonScope;
-  JsonValueScope enter_value() TD_WARN_UNUSED_RESULT;
-  JsonArrayScope enter_array() TD_WARN_UNUSED_RESULT;
-  JsonObjectScope enter_object() TD_WARN_UNUSED_RESULT;
-
-  int32 offset() const {
-    return offset_;
-  }
-  bool is_pretty() const {
-    return offset_ >= 0;
-  }
-  void print_offset() {
-    if (offset_ >= 0) {
-      sb_ << '\n';
-      for (int x = 0; x < offset_; x++) {
-        sb_ << "   ";
-      }
-    }
-  }
-  void dec_offset() {
-    if (offset_ >= 0) {
-      CHECK(offset_ > 0);
-      offset_--;
-    }
-  }
-  void inc_offset() {
-    if (offset_ >= 0) {
-      offset_++;
-    }
-  }
-
- private:
-  StringBuilder sb_;
-  JsonScope *scope_ = nullptr;
-  int32 offset_;
-};
-
-class Jsonable {};
-
-class JsonScope {
- public:
-  explicit JsonScope(JsonBuilder *jb) : sb_(&jb->sb_), jb_(jb), save_scope_(jb->scope_) {
-    jb_->scope_ = this;
-    CHECK(is_active());
-  }
-  JsonScope(const JsonScope &) = delete;
-  JsonScope &operator=(const JsonScope &) = delete;
-  JsonScope(JsonScope &&other) noexcept : sb_(other.sb_), jb_(other.jb_), save_scope_(other.save_scope_) {
-    other.jb_ = nullptr;
-  }
-  JsonScope &operator=(JsonScope &&) = delete;
-  ~JsonScope() {
-    if (jb_) {
-      leave();
-    }
-  }
-  void leave() {
-    CHECK(is_active());
-    jb_->scope_ = save_scope_;
-  }
-
- protected:
-  StringBuilder *sb_;
-
-  // For CHECK
-  JsonBuilder *jb_;
-  JsonScope *save_scope_;
-
-  bool is_active() const {
-    return jb_ && jb_->scope_ == this;
-  }
-
-  JsonScope &operator<<(JsonTrue x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(JsonFalse x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(JsonNull x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(const JsonBool &x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(const JsonInt &x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(const JsonLong &x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(const JsonFloat &x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(const JsonString &x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(const JsonRawString &x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(const JsonRaw &x) {
-    *sb_ << x;
-    return *this;
-  }
-  JsonScope &operator<<(bool x) = delete;
-  JsonScope &operator<<(int32 x) {
-    return *this << JsonInt(x);
-  }
-  JsonScope &operator<<(int64 x) {
-    return *this << JsonLong(x);
-  }
-  JsonScope &operator<<(double x) {
-    return *this << JsonFloat(x);
-  }
-  template <size_t N>
-  JsonScope &operator<<(const char (&x)[N]) {
-    return *this << JsonString(Slice(x));
-  }
-  JsonScope &operator<<(const char *x) {
-    return *this << JsonString(Slice(x));
-  }
-  JsonScope &operator<<(Slice x) {
-    return *this << JsonString(x);
-  }
-};
-
-class JsonValueScope final : public JsonScope {
- public:
-  using JsonScope::JsonScope;
-  template <class T>
-  std::enable_if_t<std::is_base_of<Jsonable, typename std::decay<T>::type>::value, JsonValueScope &> operator<<(
-      const T &x) {
-    x.store(this);
-    return *this;
-  }
-  template <class T>
-  std::enable_if_t<!std::is_base_of<Jsonable, typename std::decay<T>::type>::value, JsonValueScope &> operator<<(
-      const T &x) {
-    CHECK(!was_);
-    was_ = true;
-    JsonScope::operator<<(x);
-    return *this;
-  }
-
-  JsonArrayScope enter_array() TD_WARN_UNUSED_RESULT;
-  JsonObjectScope enter_object() TD_WARN_UNUSED_RESULT;
-
- private:
-  bool was_ = false;
-};
-
-class JsonArrayScope final : public JsonScope {
- public:
-  explicit JsonArrayScope(JsonBuilder *jb) : JsonScope(jb) {
-    jb->inc_offset();
-    *sb_ << "[";
-  }
-  JsonArrayScope(const JsonArrayScope &) = delete;
-  JsonArrayScope &operator=(const JsonArrayScope &) = delete;
-  JsonArrayScope(JsonArrayScope &&) = default;
-  JsonArrayScope &operator=(JsonArrayScope &&) = delete;
-  ~JsonArrayScope() {
-    if (jb_) {
-      leave();
-    }
-  }
-  void leave() {
-    jb_->dec_offset();
-    jb_->print_offset();
-    *sb_ << "]";
-  }
-  template <class T>
-  JsonArrayScope &operator<<(const T &x) {
-    return (*this)(x);
-  }
-  template <class T>
-  JsonArrayScope &operator()(const T &x) {
-    enter_value() << x;
-    return *this;
-  }
-  JsonValueScope enter_value() {
-    CHECK(is_active());
-    if (is_first_) {
-      *sb_ << ",";
-    } else {
-      is_first_ = true;
-    }
-    jb_->print_offset();
-    return jb_->enter_value();
-  }
-
- private:
-  bool is_first_ = false;
-};
-
-class JsonObjectScope final : public JsonScope {
- public:
-  explicit JsonObjectScope(JsonBuilder *jb) : JsonScope(jb) {
-    jb->inc_offset();
-    *sb_ << "{";
-  }
-  JsonObjectScope(const JsonObjectScope &) = delete;
-  JsonObjectScope &operator=(const JsonObjectScope &) = delete;
-  JsonObjectScope(JsonObjectScope &&) = default;
-  JsonObjectScope &operator=(JsonObjectScope &&) = delete;
-  ~JsonObjectScope() {
-    if (jb_) {
-      leave();
-    }
-  }
-  void leave() {
-    jb_->dec_offset();
-    jb_->print_offset();
-    *sb_ << "}";
-  }
-  template <class T>
-  JsonObjectScope &operator()(Slice field, T &&value) {
-    CHECK(is_active());
-    if (is_first_) {
-      *sb_ << ",";
-    } else {
-      is_first_ = true;
-    }
-    jb_->print_offset();
-    jb_->enter_value() << field;
-    if (jb_->is_pretty()) {
-      *sb_ << " : ";
-    } else {
-      *sb_ << ":";
-    }
-    jb_->enter_value() << value;
-    return *this;
-  }
-  JsonObjectScope &operator<<(const JsonRaw &field_value) {
-    CHECK(is_active());
-    is_first_ = true;
-    jb_->enter_value() << field_value;
-    return *this;
-  }
-
- private:
-  bool is_first_ = false;
-};
-
-inline JsonArrayScope JsonValueScope::enter_array() {
-  CHECK(!was_);
-  was_ = true;
-  return JsonArrayScope(jb_);
-}
-inline JsonObjectScope JsonValueScope::enter_object() {
-  CHECK(!was_);
-  was_ = true;
-  return JsonObjectScope(jb_);
-}
-inline JsonValueScope JsonBuilder::enter_value() {
-  return JsonValueScope(this);
-}
-inline JsonObjectScope JsonBuilder::enter_object() {
-  return JsonObjectScope(this);
-}
-inline JsonArrayScope JsonBuilder::enter_array() {
-  return JsonArrayScope(this);
-}
-
-class JsonValue;
-
-enum class JsonValueType { Null, Number, Boolean, String, Array, Object };
-
-using JsonArray = vector<JsonValue>;
-
-class JsonObject {
-  const JsonValue *get_field(Slice name) const;
-
- public:
-  vector<std::pair<Slice, JsonValue>> field_values_;
-
-  JsonObject() = default;
-
-  explicit JsonObject(vector<std::pair<Slice, JsonValue>> &&field_values);
-
-  JsonObject(const JsonObject &) = delete;
-  JsonObject &operator=(const JsonObject &) = delete;
-  JsonObject(JsonObject &&) = default;
-  JsonObject &operator=(JsonObject &&) = default;
-  ~JsonObject() = default;
-
-  size_t field_count() const;
-
-  JsonValue extract_field(Slice name);
-
-  Result<JsonValue> extract_optional_field(Slice name, JsonValueType type);
-
-  Result<JsonValue> extract_required_field(Slice name, JsonValueType type);
-
-  bool has_field(Slice name) const;
-
-  Result<bool> get_optional_bool_field(Slice name, bool default_value = false) const;
-
-  Result<bool> get_required_bool_field(Slice name) const;
-
-  Result<int32> get_optional_int_field(Slice name, int32 default_value = 0) const;
-
-  Result<int32> get_required_int_field(Slice name) const;
-
-  Result<int64> get_optional_long_field(Slice name, int64 default_value = 0) const;
-
-  Result<int64> get_required_long_field(Slice name) const;
-
-  Result<double> get_optional_double_field(Slice name, double default_value = 0.0) const;
-
-  Result<double> get_required_double_field(Slice name) const;
-
-  Result<string> get_optional_string_field(Slice name, string default_value = string()) const;
-
-  Result<string> get_required_string_field(Slice name) const;
-
-  void foreach(const std::function<void(Slice name, const JsonValue &value)> &callback) const;
-};
-
-class JsonValue final : private Jsonable {
- public:
-  using Type = JsonValueType;
-
-  static Slice get_type_name(Type type);
-
-  JsonValue() {
-  }
-  ~JsonValue() {
-    destroy();
-  }
-  JsonValue(JsonValue &&other) noexcept : JsonValue() {
-    init(std::move(other));
-  }
-  JsonValue &operator=(JsonValue &&other) noexcept {
-    if (&other == this) {
-      return *this;
-    }
-    destroy();
-    init(std::move(other));
-    return *this;
-  }
-  JsonValue(const JsonValue &) = delete;
-  JsonValue &operator=(const JsonValue &) = delete;
-
-  Type type() const {
-    return type_;
-  }
-
-  MutableSlice &get_string() {
-    CHECK(type_ == Type::String);
-    return string_;
-  }
-  const MutableSlice &get_string() const {
-    CHECK(type_ == Type::String);
-    return string_;
-  }
-  bool &get_boolean() {
-    CHECK(type_ == Type::Boolean);
-    return boolean_;
-  }
-  const bool &get_boolean() const {
-    CHECK(type_ == Type::Boolean);
-    return boolean_;
-  }
-
-  MutableSlice &get_number() {
-    CHECK(type_ == Type::Number);
-    return number_;
-  }
-  const MutableSlice &get_number() const {
-    CHECK(type_ == Type::Number);
-    return number_;
-  }
-
-  JsonArray &get_array() {
-    CHECK(type_ == Type::Array);
-    return array_;
-  }
-  const JsonArray &get_array() const {
-    CHECK(type_ == Type::Array);
-    return array_;
-  }
-
-  JsonObject &get_object() {
-    CHECK(type_ == Type::Object);
-    return object_;
-  }
-  const JsonObject &get_object() const {
-    CHECK(type_ == Type::Object);
-    return object_;
-  }
-
-  static JsonValue create_boolean(bool val) {
-    JsonValue res;
-    res.init_boolean(val);
-    return res;
-  }
-
-  static JsonValue create_number(MutableSlice number) {
-    JsonValue res;
-    res.init_number(number);
-    return res;
-  }
-
-  static JsonValue create_string(MutableSlice str) {
-    JsonValue res;
-    res.init_string(str);
-    return res;
-  }
-
-  static JsonValue create_array(JsonArray v) {
-    JsonValue res;
-    res.init_array(std::move(v));
-    return res;
-  }
-
-  static JsonValue make_object(JsonObject c) {
-    JsonValue res;
-    res.init_object(std::move(c));
-    return res;
-  }
-
-  void store(JsonValueScope *scope) const {
-    switch (type_) {
-      case Type::Null:
-        *scope << JsonRaw("null");
-        break;
-      case Type::Boolean:
-        if (get_boolean()) {
-          *scope << JsonRaw("true");
-        } else {
-          *scope << JsonRaw("false");
-        }
-        break;
-      case Type::Number:
-        *scope << JsonRaw(get_number());
-        break;
-      case Type::String:
-        *scope << JsonString(get_string());
-        break;
-      case Type::Array: {
-        auto arr = scope->enter_array();
-        for (auto &val : get_array()) {
-          arr << val;
-        }
-        break;
-      }
-      case Type::Object: {
-        auto object = scope->enter_object();
-        for (auto &field_value : get_object().field_values_) {
-          object(field_value.first, field_value.second);
-        }
-        break;
-      }
-    }
-  };
-
- private:
-  Type type_{Type::Null};
-  union {
-    MutableSlice number_;
-    bool boolean_;
-    MutableSlice string_;
-    JsonArray array_;
-    JsonObject object_;
-  };
-
-  void init_null() {
-    type_ = Type::Null;
-  }
-  void init_number(MutableSlice number) {
-    type_ = Type::Number;
-    new (&number_) MutableSlice(number);
-  }
-  void init_boolean(bool boolean) {
-    type_ = Type::Boolean;
-    boolean_ = boolean;
-  }
-  void init_string(MutableSlice slice) {
-    type_ = Type::String;
-    new (&string_) MutableSlice(slice);
-  }
-  void init_array(JsonArray array) {
-    type_ = Type::Array;
-    new (&array_) JsonArray(std::move(array));
-  }
-  void init_object(JsonObject object) {
-    type_ = Type::Object;
-    new (&object_) JsonObject(std::move(object));
-  }
-
-  void init(JsonValue &&other) {
-    switch (other.type_) {
-      case Type::Null:
-        break;
-      case Type::Number:
-        init_number(other.number_);
-        break;
-      case Type::Boolean:
-        init_boolean(other.boolean_);
-        break;
-      case Type::String:
-        init_string(other.string_);
-        break;
-      case Type::Array:
-        init_array(std::move(other.array_));
-        break;
-      case Type::Object:
-        init_object(std::move(other.object_));
-        break;
-    }
-    other.destroy();
-  }
-
-  void destroy() {
-    switch (type_) {
-      case Type::Null:
-      case Type::Boolean:
-        break;
-      case Type::Number:
-        number_.~MutableSlice();
-        break;
-      case Type::String:
-        string_.~MutableSlice();
-        break;
-      case Type::Array:
-        array_.~vector<JsonValue>();
-        break;
-      case Type::Object:
-        object_.~JsonObject();
-        break;
-    }
-    type_ = Type::Null;
-  }
-};
-
-inline StringBuilder &operator<<(StringBuilder &sb, JsonValue::Type type) {
-  switch (type) {
-    case JsonValue::Type::Null:
-      return sb << "Null";
-    case JsonValue::Type::Number:
-      return sb << "Number";
-    case JsonValue::Type::Boolean:
-      return sb << "Boolean";
-    case JsonValue::Type::String:
-      return sb << "String";
-    case JsonValue::Type::Array:
-      return sb << "Array";
-    case JsonValue::Type::Object:
-      return sb << "Object";
-    default:
-      UNREACHABLE();
-      return sb;
-  }
-}
-
-class VirtuallyJsonable : private Jsonable {
- public:
-  virtual void store(JsonValueScope *scope) const = 0;
-  VirtuallyJsonable() = default;
-  VirtuallyJsonable(const VirtuallyJsonable &) = delete;
-  VirtuallyJsonable &operator=(const VirtuallyJsonable &) = delete;
-  VirtuallyJsonable(VirtuallyJsonable &&) = default;
-  VirtuallyJsonable &operator=(VirtuallyJsonable &&) = default;
-  virtual ~VirtuallyJsonable() = default;
-};
-
-class VirtuallyJsonableInt final : public VirtuallyJsonable {
- public:
-  explicit VirtuallyJsonableInt(int32 value) : value_(value) {
-  }
-  void store(JsonValueScope *scope) const final {
-    *scope << JsonInt(value_);
-  }
-
- private:
-  int32 value_;
-};
-
-class VirtuallyJsonableLong final : public VirtuallyJsonable {
- public:
-  explicit VirtuallyJsonableLong(int64 value) : value_(value) {
-  }
-  void store(JsonValueScope *scope) const final {
-    *scope << JsonLong(value_);
-  }
-
- private:
-  int64 value_;
-};
-
-class VirtuallyJsonableString final : public VirtuallyJsonable {
- public:
-  explicit VirtuallyJsonableString(Slice value) : value_(value) {
-  }
-  void store(JsonValueScope *scope) const final {
-    *scope << JsonString(value_);
-  }
-
- private:
-  Slice value_;
-};
-
-Result<MutableSlice> json_string_decode(Parser &parser) TD_WARN_UNUSED_RESULT;
-Status json_string_skip(Parser &parser) TD_WARN_UNUSED_RESULT;
-
-Result<JsonValue> do_json_decode(Parser &parser, int32 max_depth) TD_WARN_UNUSED_RESULT;
-Status do_json_skip(Parser &parser, int32 max_depth) TD_WARN_UNUSED_RESULT;
-
-inline Result<JsonValue> json_decode(MutableSlice json) {
-  Parser parser(json);
-  const int32 DEFAULT_MAX_DEPTH = 100;
-  auto result = do_json_decode(parser, DEFAULT_MAX_DEPTH);
-  if (result.is_ok()) {
-    parser.skip_whitespaces();
-    if (!parser.empty()) {
-      return Status::Error("Expected string end");
-    }
-  }
-  return result;
-}
-
-template <class StrT, class ValT>
-StrT json_encode(const ValT &val, bool pretty = false) {
-  auto buf_len = 1 << 18;
-  auto buf = StackAllocator::alloc(buf_len);
-  JsonBuilder jb(StringBuilder(buf.as_slice(), true), pretty ? 0 : -1);
-  jb.enter_value() << val;
-  if (pretty) {
-    jb.string_builder() << "\n";
-  }
-  LOG_IF(ERROR, jb.string_builder().is_error()) << "JSON buffer overflow";
-  auto slice = jb.string_builder().as_cslice();
-  return StrT(slice.begin(), slice.size());
-}
-
-template <class T>
-class ToJsonImpl final : private Jsonable {
- public:
-  explicit ToJsonImpl(const T &value) : value_(value) {
-  }
-  void store(JsonValueScope *scope) const {
-    to_json(*scope, value_);
-  }
-
- private:
-  const T &value_;
-};
-
-template <class T>
-auto ToJson(const T &value) {
-  return ToJsonImpl<T>(value);
-}
-
-template <class T>
-void to_json(JsonValueScope &jv, const T &value) {
-  jv << value;
-}
-
-template <class F>
-class JsonObjectImpl : private Jsonable {
- public:
-  explicit JsonObjectImpl(F &&f) : f_(std::forward<F>(f)) {
-  }
-  void store(JsonValueScope *scope) const {
-    auto object = scope->enter_object();
-    f_(object);
-  }
-
- private:
-  F f_;
-};
-
-template <class F>
-auto json_object(F &&f) {
-  return JsonObjectImpl<F>(std::forward<F>(f));
-}
-
-template <class F>
-class JsonArrayImpl : private Jsonable {
- public:
-  explicit JsonArrayImpl(F &&f) : f_(std::forward<F>(f)) {
-  }
-  void store(JsonValueScope *scope) const {
-    auto array = scope->enter_array();
-    f_(array);
-  }
-
- private:
-  F f_;
-};
-
-template <class F>
-auto json_array(F &&f) {
-  return JsonArrayImpl<F>(std::forward<F>(f));
-}
-
-template <class A, class F>
-auto json_array(const A &a, F &&f) {
-  return json_array([&a, &f](auto &arr) {
-    for (auto &x : a) {
-      arr(f(x));
-    }
-  });
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/List.h b/third-party/td/td/tdutils/td/utils/List.h
deleted file mode 100644
index 83f44b438a..0000000000
--- a/third-party/td/td/tdutils/td/utils/List.h
+++ /dev/null
@@ -1,129 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-struct ListNode {
-  ListNode *next;
-  ListNode *prev;
-  ListNode() {
-    clear();
-  }
-
-  ~ListNode() {
-    remove();
-  }
-
-  ListNode(const ListNode &) = delete;
-  ListNode &operator=(const ListNode &) = delete;
-
-  ListNode(ListNode &&other) noexcept {
-    if (other.empty()) {
-      clear();
-    } else {
-      init_from(std::move(other));
-    }
-  }
-
-  ListNode &operator=(ListNode &&other) noexcept {
-    if (this == &other) {
-      return *this;
-    }
-
-    this->remove();
-
-    if (!other.empty()) {
-      init_from(std::move(other));
-    }
-
-    return *this;
-  }
-
-  void connect(ListNode *to) {
-    CHECK(to != nullptr);
-    next = to;
-    to->prev = this;
-  }
-
-  void remove() {
-    prev->connect(next);
-    clear();
-  }
-
-  void put(ListNode *other) {
-    DCHECK(other->empty());
-    put_unsafe(other);
-  }
-
-  void put_back(ListNode *other) {
-    DCHECK(other->empty());
-    prev->connect(other);
-    other->connect(this);
-  }
-
-  ListNode *get() {
-    ListNode *result = prev;
-    if (result == this) {
-      return nullptr;
-    }
-    result->prev->connect(this);
-    result->clear();
-    // this->connect(result->next);
-    return result;
-  }
-
-  bool empty() const {
-    return next == this;
-  }
-
-  ListNode *begin() {
-    return next;
-  }
-  ListNode *end() {
-    return this;
-  }
-  const ListNode *begin() const {
-    return next;
-  }
-  const ListNode *end() const {
-    return this;
-  }
-  ListNode *get_next() {
-    return next;
-  }
-  ListNode *get_prev() {
-    return prev;
-  }
-  const ListNode *get_next() const {
-    return next;
-  }
-  const ListNode *get_prev() const {
-    return prev;
-  }
-
- protected:
-  void clear() {
-    next = this;
-    prev = this;
-  }
-
-  void init_from(ListNode &&other) {
-    ListNode *head = other.prev;
-    other.remove();
-    head->put_unsafe(this);
-  }
-
-  void put_unsafe(ListNode *other) {
-    other->connect(next);
-    this->connect(other);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MapNode.h b/third-party/td/td/tdutils/td/utils/MapNode.h
deleted file mode 100644
index 1d8f96a5c0..0000000000
--- a/third-party/td/td/tdutils/td/utils/MapNode.h
+++ /dev/null
@@ -1,166 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-
-#include <new>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-template <class KeyT, class ValueT, class EqT, class Enable = void>
-struct MapNode {
-  using first_type = KeyT;
-  using second_type = ValueT;
-  using public_key_type = KeyT;
-  using public_type = MapNode;
-
-  KeyT first{};
-  union {
-    ValueT second;
-  };
-
-  const KeyT &key() const {
-    return first;
-  }
-
-  MapNode &get_public() {
-    return *this;
-  }
-
-  const MapNode &get_public() const {
-    return *this;
-  }
-
-  MapNode() {
-  }
-  MapNode(KeyT key, ValueT value) : first(std::move(key)) {
-    new (&second) ValueT(std::move(value));
-    DCHECK(!empty());
-  }
-  MapNode(const MapNode &) = delete;
-  MapNode &operator=(const MapNode &) = delete;
-  MapNode(MapNode &&other) noexcept {
-    *this = std::move(other);
-  }
-  void operator=(MapNode &&other) noexcept {
-    DCHECK(empty());
-    DCHECK(!other.empty());
-    first = std::move(other.first);
-    other.first = KeyT();
-    new (&second) ValueT(std::move(other.second));
-    other.second.~ValueT();
-  }
-  ~MapNode() {
-    if (!empty()) {
-      second.~ValueT();
-    }
-  }
-
-  void copy_from(const MapNode &other) {
-    DCHECK(empty());
-    DCHECK(!other.empty());
-    first = other.first;
-    new (&second) ValueT(other.second);
-  }
-
-  bool empty() const {
-    return is_hash_table_key_empty<EqT>(first);
-  }
-
-  void clear() {
-    DCHECK(!empty());
-    first = KeyT();
-    second.~ValueT();
-    DCHECK(empty());
-  }
-
-  template <class... ArgsT>
-  void emplace(KeyT key, ArgsT &&...args) {
-    DCHECK(empty());
-    first = std::move(key);
-    new (&second) ValueT(std::forward<ArgsT>(args)...);
-    DCHECK(!empty());
-  }
-};
-
-template <class KeyT, class ValueT, class EqT>
-struct MapNode<KeyT, ValueT, EqT, typename std::enable_if_t<(sizeof(KeyT) + sizeof(ValueT) > 28 * sizeof(void *))>> {
-  struct Impl {
-    using first_type = KeyT;
-    using second_type = ValueT;
-
-    KeyT first{};
-    union {
-      ValueT second;
-    };
-
-    template <class InputKeyT, class... ArgsT>
-    Impl(InputKeyT &&key, ArgsT &&...args) : first(std::forward<InputKeyT>(key)) {
-      new (&second) ValueT(std::forward<ArgsT>(args)...);
-      DCHECK(!is_hash_table_key_empty<EqT>(first));
-    }
-    Impl(const Impl &) = delete;
-    Impl &operator=(const Impl &) = delete;
-    Impl(Impl &&) = delete;
-    Impl &operator=(Impl &&) = delete;
-    ~Impl() {
-      second.~ValueT();
-    }
-  };
-
-  using first_type = KeyT;
-  using second_type = ValueT;
-  using public_key_type = KeyT;
-  using public_type = Impl;
-
-  unique_ptr<Impl> impl_;
-
-  const KeyT &key() const {
-    DCHECK(!empty());
-    return impl_->first;
-  }
-
-  Impl &get_public() {
-    return *impl_;
-  }
-
-  const Impl &get_public() const {
-    return *impl_;
-  }
-
-  MapNode() {
-  }
-  MapNode(KeyT key, ValueT value) : impl_(td::make_unique<Impl>(std::move(key), std::move(value))) {
-  }
-
-  void copy_from(const MapNode &other) {
-    DCHECK(empty());
-    DCHECK(!other.empty());
-    impl_ = td::make_unique<Impl>(other.impl_->first, other.impl_->second);
-  }
-
-  bool empty() const {
-    return impl_ == nullptr;
-  }
-
-  void clear() {
-    DCHECK(!empty());
-    impl_ = nullptr;
-  }
-
-  template <class... ArgsT>
-  void emplace(KeyT key, ArgsT &&...args) {
-    DCHECK(empty());
-    impl_ = td::make_unique<Impl>(std::move(key), std::forward<ArgsT>(args)...);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MemoryLog.h b/third-party/td/td/tdutils/td/utils/MemoryLog.h
deleted file mode 100644
index 7a88c5cf4b..0000000000
--- a/third-party/td/td/tdutils/td/utils/MemoryLog.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-
-#include <atomic>
-#include <cstdio>
-#include <cstring>
-
-namespace td {
-
-template <int buffer_size = 32 * (1 << 10)>
-class MemoryLog final : public LogInterface {
-  static constexpr size_t MAX_OUTPUT_SIZE = buffer_size / 16 < (8 << 10) ? buffer_size / 16 : (8 << 10);
-
-  static_assert((buffer_size & (buffer_size - 1)) == 0, "Buffer size must be power of 2");
-  static_assert(buffer_size >= (8 << 10), "Too small buffer size");
-
- public:
-  MemoryLog() {
-    std::memset(buffer_, ' ', sizeof(buffer_));
-  }
-
-  Slice get_buffer() const {
-    return Slice(buffer_, sizeof(buffer_));
-  }
-
-  size_t get_pos() const {
-    return pos_ & (buffer_size - 1);
-  }
-
- private:
-  void do_append(int log_level, CSlice new_slice) final {
-    Slice slice = new_slice;
-    slice.truncate(MAX_OUTPUT_SIZE);
-    while (!slice.empty() && slice.back() == '\n') {
-      slice.remove_suffix(1);
-    }
-    size_t slice_size = slice.size();
-    CHECK(slice_size * 3 < buffer_size);
-    size_t pad_size = ((slice_size + 15) & ~15) - slice_size;
-    constexpr size_t MAGIC_SIZE = 16;
-    auto total_size = static_cast<uint32>(slice_size + pad_size + MAGIC_SIZE);
-    auto real_pos = pos_.fetch_add(total_size, std::memory_order_relaxed);
-    CHECK((total_size & 15) == 0);
-
-    uint32 start_pos = real_pos & (buffer_size - 1);
-    uint32 end_pos = start_pos + total_size;
-    if (likely(end_pos <= buffer_size)) {
-      std::memcpy(&buffer_[start_pos + MAGIC_SIZE], slice.data(), slice_size);
-      std::memcpy(&buffer_[start_pos + MAGIC_SIZE + slice_size], "               ", pad_size);
-    } else {
-      size_t first = buffer_size - start_pos - MAGIC_SIZE;
-      size_t second = slice_size - first;
-      std::memcpy(&buffer_[start_pos + MAGIC_SIZE], slice.data(), first);
-      std::memcpy(&buffer_[0], slice.data() + first, second);
-      std::memcpy(&buffer_[second], "               ", pad_size);
-    }
-
-    CHECK((start_pos & 15) == 0);
-    CHECK(start_pos <= buffer_size - MAGIC_SIZE);
-    buffer_[start_pos] = '\n';
-    size_t printed = std::snprintf(&buffer_[start_pos + 1], MAGIC_SIZE - 1, "LOG:%08x: ", real_pos);
-    CHECK(printed == MAGIC_SIZE - 2);
-    buffer_[start_pos + MAGIC_SIZE - 1] = ' ';
-  }
-
-  char buffer_[buffer_size];
-  std::atomic<uint32> pos_{0};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MimeType.cpp b/third-party/td/td/tdutils/td/utils/MimeType.cpp
deleted file mode 100644
index 1c5b2cf8e5..0000000000
--- a/third-party/td/td/tdutils/td/utils/MimeType.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/MimeType.h"
-
-#include "td/utils/logging.h"
-
-const char *extension_to_mime_type(const char *extension, size_t extension_len);  // auto-generated
-const char *mime_type_to_extension(const char *mime_type, size_t mime_type_len);  // auto-generated
-
-namespace td {
-
-string MimeType::to_extension(Slice mime_type, Slice default_value) {
-  if (mime_type.empty()) {
-    return default_value.str();
-  }
-
-  const char *result = ::mime_type_to_extension(mime_type.data(), mime_type.size());
-  if (result != nullptr) {
-    return result;
-  }
-
-  LOG(INFO) << "Unknown file MIME type " << mime_type;
-  return default_value.str();
-}
-
-string MimeType::from_extension(Slice extension, Slice default_value) {
-  if (extension.empty()) {
-    return default_value.str();
-  }
-
-  const char *result = ::extension_to_mime_type(extension.data(), extension.size());
-  if (result != nullptr) {
-    return result;
-  }
-
-  LOG(INFO) << "Unknown file extension " << extension;
-  return default_value.str();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MimeType.h b/third-party/td/td/tdutils/td/utils/MimeType.h
deleted file mode 100644
index d0ba6c1b0b..0000000000
--- a/third-party/td/td/tdutils/td/utils/MimeType.h
+++ /dev/null
@@ -1,20 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class MimeType {
- public:
-  static string to_extension(Slice mime_type, Slice default_value = Slice());
-  static string from_extension(Slice extension, Slice default_value = Slice());
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MovableValue.h b/third-party/td/td/tdutils/td/utils/MovableValue.h
deleted file mode 100644
index ee0813cc52..0000000000
--- a/third-party/td/td/tdutils/td/utils/MovableValue.h
+++ /dev/null
@@ -1,42 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-namespace td {
-
-template <class T, T empty_val = T()>
-class MovableValue {
- public:
-  MovableValue() = default;
-  MovableValue(T val) : val_(val) {
-  }
-  MovableValue(MovableValue &&other) noexcept : val_(other.val_) {
-    other.clear();
-  }
-  MovableValue &operator=(MovableValue &&other) noexcept {
-    if (this != &other) {
-      val_ = other.val_;
-      other.clear();
-    }
-    return *this;
-  }
-  MovableValue(const MovableValue &) = default;
-  MovableValue &operator=(const MovableValue &) = default;
-  ~MovableValue() = default;
-
-  void clear() {
-    val_ = empty_val;
-  }
-  const T &get() const {
-    return val_;
-  }
-
- private:
-  T val_ = empty_val;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MpmcQueue.cpp b/third-party/td/td/tdutils/td/utils/MpmcQueue.cpp
deleted file mode 100644
index 953ec6e4f5..0000000000
--- a/third-party/td/td/tdutils/td/utils/MpmcQueue.cpp
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/MpmcQueue.h"
-
-namespace td {
-namespace detail {
-
-MpmcStat stat_;
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MpmcQueue.h b/third-party/td/td/tdutils/td/utils/MpmcQueue.h
deleted file mode 100644
index 51dfafd9a5..0000000000
--- a/third-party/td/td/tdutils/td/utils/MpmcQueue.h
+++ /dev/null
@@ -1,460 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-// MPMC queue
-// Simple semaphore protected implementation
-// To close queue, one should send as much sentinel elements as there are readers.
-// Once there are no readers and writers, one may easily destroy queue
-
-#include "td/utils/format.h"
-#include "td/utils/HazardPointers.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/ScopeGuard.h"
-
-#include <array>
-#include <atomic>
-
-namespace td {
-
-namespace detail {
-
-struct MpmcStat {
-  void alloc_ok(size_t thread_id) {
-    s(thread_id).alloc_ok_cnt++;
-  }
-  void alloc_error(size_t thread_id) {
-    s(thread_id).alloc_error_cnt++;
-  }
-  void push_loop_error(size_t thread_id) {
-    s(thread_id).push_loop_error_cnt++;
-  }
-  void push_loop_ok(size_t thread_id) {
-    s(thread_id).push_loop_ok_cnt++;
-  }
-  void dump() {
-    int alloc_ok_cnt = 0;
-    int alloc_error_cnt = 0;
-    int push_loop_error_cnt = 0;
-    int push_loop_ok_cnt = 0;
-    for (auto &d : arr) {
-      alloc_ok_cnt += d.alloc_ok_cnt;
-      alloc_error_cnt += d.alloc_error_cnt;
-      push_loop_error_cnt += d.push_loop_error_cnt;
-      push_loop_ok_cnt += d.push_loop_ok_cnt;
-    }
-    LOG(ERROR) << tag("alloc_ok_cnt", alloc_ok_cnt) << tag("alloc_error_cnt", alloc_error_cnt)
-               << tag("push_loop_error_cnt", push_loop_error_cnt) << tag("push_loop_ok_cnt", push_loop_ok_cnt);
-  }
-
- private:
-  struct ThreadStat {
-    int alloc_ok_cnt{0};
-    int alloc_error_cnt{0};
-    int push_loop_ok_cnt{0};
-    int push_loop_error_cnt{0};
-    char pad[TD_CONCURRENCY_PAD - sizeof(int) * 4];
-  };
-  std::array<ThreadStat, 1024> arr;
-  ThreadStat &s(size_t thread_id) {
-    return arr[thread_id];
-  }
-};
-
-extern MpmcStat stat_;
-
-}  // namespace detail
-
-template <class T>
-class OneValue {
- public:
-  bool set_value(T &value) {
-    value_ = std::move(value);
-    int state = Empty;
-    if (state_.compare_exchange_strong(state, Value, std::memory_order_acq_rel)) {
-      return true;
-    }
-    value = std::move(value_);
-    return false;
-  }
-  bool get_value(T &value) {
-    auto old_state = state_.exchange(Taken, std::memory_order_acq_rel);
-    if (old_state == Value) {
-      value = std::move(value_);
-      return true;
-    }
-    return false;
-  }
-  void reset() {
-    state_ = Empty;
-    value_ = T();
-  }
-
- private:
-  enum Type : int { Empty = 0, Taken, Value };
-  std::atomic<int> state_{Empty};
-  T value_{};
-};
-
-template <class T>
-class OneValue<T *> {
- public:
-  bool set_value(T *value) {
-    T *was = Empty();
-    return state_.compare_exchange_strong(was, value, std::memory_order_acq_rel);
-  }
-  bool get_value(T *&value) {
-    value = state_.exchange(Taken(), std::memory_order_acq_rel);
-    return value != Empty();
-  }
-  void reset() {
-    state_ = Empty();
-  }
-  OneValue() {
-  }
-
- private:
-  std::atomic<T *> state_{Empty()};
-  static T *Empty() {
-    static int64 xxx;
-    return reinterpret_cast<T *>(&xxx);
-  }
-  static T *Taken() {
-    static int64 xxx;
-    return reinterpret_cast<T *>(&xxx);
-  }
-};
-
-template <class T>
-class MpmcQueueBlock {
- public:
-  explicit MpmcQueueBlock(size_t size) : nodes_(size) {
-  }
-  enum class PopStatus { Ok, Empty, Closed };
-
-  //blocking pop
-  //returns Ok or Closed
-  PopStatus pop(T &value) {
-    while (true) {
-      auto read_pos = read_pos_.fetch_add(1, std::memory_order_relaxed);
-      if (read_pos >= nodes_.size()) {
-        return PopStatus::Closed;
-      }
-      //TODO blocking get_value
-      if (nodes_[static_cast<size_t>(read_pos)].one_value.get_value(value)) {
-        return PopStatus::Ok;
-      }
-    }
-  }
-
-  //nonblocking pop
-  //returns Ok, Empty or Closed
-  PopStatus try_pop(T &value) {
-    while (true) {
-      // this check slows 1:1 case but prevents writer starvation in 1:N case
-      if (write_pos_.load(std::memory_order_relaxed) <= read_pos_.load(std::memory_order_relaxed) &&
-          read_pos_.load(std::memory_order_relaxed) < nodes_.size()) {
-        return PopStatus::Empty;
-      }
-      auto read_pos = read_pos_.fetch_add(1, std::memory_order_relaxed);
-      if (read_pos >= nodes_.size()) {
-        return PopStatus::Closed;
-      }
-      if (nodes_[static_cast<size_t>(read_pos)].one_value.get_value(value)) {
-        return PopStatus::Ok;
-      }
-      auto write_pos = write_pos_.load(std::memory_order_relaxed);
-      if (write_pos <= read_pos + 1) {
-        return PopStatus::Empty;
-      }
-    }
-  }
-
-  enum class PushStatus { Ok, Closed };
-  PushStatus push(T &value) {
-    while (true) {
-      auto write_pos = write_pos_.fetch_add(1, std::memory_order_relaxed);
-      if (write_pos >= nodes_.size()) {
-        return PushStatus::Closed;
-      }
-      if (nodes_[static_cast<size_t>(write_pos)].one_value.set_value(value)) {
-        //stat_.push_loop_ok(0);
-        return PushStatus::Ok;
-      }
-      //stat_.push_loop_error(0);
-    }
-  }
-
- private:
-  struct Node {
-    OneValue<T> one_value;
-  };
-  std::atomic<uint64> write_pos_{0};
-  char pad[TD_CONCURRENCY_PAD - sizeof(std::atomic<uint64>)];
-  std::atomic<uint64> read_pos_{0};
-  char pad2[TD_CONCURRENCY_PAD - sizeof(std::atomic<uint64>)];
-  std::vector<Node> nodes_;
-  char pad3[TD_CONCURRENCY_PAD - sizeof(std::vector<Node>)];
-};
-
-template <class T>
-class MpmcQueueOld {
- public:
-  explicit MpmcQueueOld(size_t threads_n) : MpmcQueueOld(1024, threads_n) {
-  }
-  static std::string get_description() {
-    return "Mpmc queue (fetch and add array queue)";
-  }
-  MpmcQueueOld(size_t block_size, size_t threads_n) : block_size_{block_size}, hazard_pointers_{threads_n} {
-    auto node = make_unique<Node>(block_size_);
-    write_pos_ = node.get();
-    read_pos_ = node.get();
-    node.release();
-  }
-
-  MpmcQueueOld(const MpmcQueueOld &) = delete;
-  MpmcQueueOld &operator=(const MpmcQueueOld &) = delete;
-  MpmcQueueOld(MpmcQueueOld &&) = delete;
-  MpmcQueueOld &operator=(MpmcQueueOld &&) = delete;
-  ~MpmcQueueOld() {
-    auto *ptr = read_pos_.load(std::memory_order_relaxed);
-    while (ptr) {
-      auto *to_delete = ptr;
-      ptr = ptr->next_.load(std::memory_order_relaxed);
-      delete to_delete;
-    }
-    //stat_.dump();
-    //stat_ = detail::MpmcStat();
-  }
-
-  size_t hazard_pointers_to_delele_size_unsafe() const {
-    return hazard_pointers_.to_delete_size_unsafe();
-  }
-  void gc(size_t thread_id) {
-    hazard_pointers_.retire(thread_id);
-  }
-
-  using PushStatus = typename MpmcQueueBlock<T>::PushStatus;
-  using PopStatus = typename MpmcQueueBlock<T>::PopStatus;
-
-  void push(T value, size_t thread_id) {
-    typename decltype(hazard_pointers_)::Holder hazard_ptr_holder(hazard_pointers_, thread_id, 0);
-    while (true) {
-      auto node = hazard_ptr_holder.protect(write_pos_);
-      auto status = node->block.push(value);
-      switch (status) {
-        case PushStatus::Ok:
-          return;
-        case PushStatus::Closed: {
-          auto next = node->next_.load(std::memory_order_acquire);
-          if (next == nullptr) {
-            auto new_node = new Node(block_size_);
-            new_node->block.push(value);
-            if (node->next_.compare_exchange_strong(next, new_node, std::memory_order_acq_rel)) {
-              //stat_.alloc_ok(thread_id);
-              write_pos_.compare_exchange_strong(node, new_node, std::memory_order_acq_rel);
-              return;
-            } else {
-              //stat_.alloc_error(thread_id);
-              new_node->block.pop(value);
-              //CHECK(status == PopStatus::Ok);
-              delete new_node;
-            }
-          }
-          //CHECK(next != nullptr);
-          write_pos_.compare_exchange_strong(node, next, std::memory_order_acq_rel);
-          break;
-        }
-      }
-    }
-  }
-
-  bool try_pop(T &value, size_t thread_id) {
-    typename decltype(hazard_pointers_)::Holder hazard_ptr_holder(hazard_pointers_, thread_id, 0);
-    while (true) {
-      auto node = hazard_ptr_holder.protect(read_pos_);
-      auto status = node->block.try_pop(value);
-      switch (status) {
-        case PopStatus::Ok:
-          return true;
-        case PopStatus::Empty:
-          return false;
-        case PopStatus::Closed: {
-          auto next = node->next_.load(std::memory_order_acquire);
-          if (!next) {
-            return false;
-          }
-          if (read_pos_.compare_exchange_strong(node, next, std::memory_order_acq_rel)) {
-            hazard_ptr_holder.clear();
-            hazard_pointers_.retire(thread_id, node);
-          }
-          break;
-        }
-      }
-    }
-  }
-
-  T pop(size_t thread_id) {
-    T value;
-    while (true) {
-      if (try_pop(value, thread_id)) {
-        return value;
-      }
-      usleep_for(1);
-    }
-  }
-
- private:
-  struct Node {
-    explicit Node(size_t block_size) : block{block_size} {
-    }
-    std::atomic<Node *> next_{nullptr};
-    char pad[TD_CONCURRENCY_PAD - sizeof(std::atomic<Node *>)];
-    MpmcQueueBlock<T> block;
-    // MpmcQueueBlock is already padded
-  };
-  std::atomic<Node *> write_pos_{nullptr};
-  char pad[TD_CONCURRENCY_PAD - sizeof(std::atomic<Node *>)];
-  std::atomic<Node *> read_pos_{nullptr};
-  char pad2[TD_CONCURRENCY_PAD - sizeof(std::atomic<Node *>)];
-  size_t block_size_;
-  HazardPointers<Node, 1> hazard_pointers_;
-  // HazardPointers class is already padded
-};
-
-template <class T>
-class MpmcQueue {
- public:
-  explicit MpmcQueue(size_t threads_n) : MpmcQueue(1024, threads_n) {
-  }
-  static std::string get_description() {
-    return "NEW Mpmc queue (fetch and add array queue)";
-  }
-  MpmcQueue(size_t block_size, size_t threads_n) : hazard_pointers_{threads_n} {
-    auto node = make_unique<Node>();
-    write_pos_ = node.get();
-    read_pos_ = node.get();
-    node.release();
-  }
-
-  MpmcQueue(const MpmcQueue &) = delete;
-  MpmcQueue &operator=(const MpmcQueue &) = delete;
-  MpmcQueue(MpmcQueue &&) = delete;
-  MpmcQueue &operator=(MpmcQueue &&) = delete;
-  ~MpmcQueue() {
-    auto *ptr = read_pos_.load(std::memory_order_relaxed);
-    while (ptr) {
-      auto *to_delete = ptr;
-      ptr = ptr->next.load(std::memory_order_relaxed);
-      delete to_delete;
-    }
-  }
-
-  size_t hazard_pointers_to_delele_size_unsafe() const {
-    return hazard_pointers_.to_delete_size_unsafe();
-  }
-  void gc(size_t thread_id) {
-    hazard_pointers_.retire(thread_id);
-  }
-
-  void push(T value, size_t thread_id) {
-    SCOPE_EXIT {
-      hazard_pointers_.clear(thread_id, 0);
-    };
-    while (true) {
-      auto node = hazard_pointers_.protect(thread_id, 0, write_pos_);
-      auto &block = node->block;
-      auto pos = block.write_pos++;
-      if (pos >= block.data.size()) {
-        auto next = node->next.load();
-        if (next == nullptr) {
-          auto new_node = new Node{};
-          new_node->block.write_pos++;
-          new_node->block.data[0].set_value(value);
-          Node *null = nullptr;
-          if (node->next.compare_exchange_strong(null, new_node)) {
-            write_pos_.compare_exchange_strong(node, new_node);
-            return;
-          } else {
-            new_node->block.data[0].get_value(value);
-            delete new_node;
-          }
-        } else {
-          write_pos_.compare_exchange_strong(node, next);
-        }
-      } else {
-        if (block.data[static_cast<size_t>(pos)].set_value(value)) {
-          return;
-        }
-      }
-    }
-  }
-
-  bool try_pop(T &value, size_t thread_id) {
-    SCOPE_EXIT {
-      hazard_pointers_.clear(thread_id, 0);
-    };
-    while (true) {
-      auto node = hazard_pointers_.protect(thread_id, 0, read_pos_);
-      auto &block = node->block;
-      if (block.write_pos <= block.read_pos && node->next.load(std::memory_order_relaxed) == nullptr) {
-        return false;
-      }
-      auto pos = block.read_pos++;
-      if (pos >= block.data.size()) {
-        auto next = node->next.load();
-        if (!next) {
-          return false;
-        }
-        if (read_pos_.compare_exchange_strong(node, next)) {
-          hazard_pointers_.clear(thread_id, 0);
-          hazard_pointers_.retire(thread_id, node);
-        }
-      } else {
-        if (block.data[static_cast<size_t>(pos)].get_value(value)) {
-          return true;
-        }
-      }
-    }
-  }
-
-  T pop(size_t thread_id) {
-    T value;
-    while (true) {
-      if (try_pop(value, thread_id)) {
-        return value;
-      }
-      usleep_for(1);
-    }
-  }
-
- private:
-  struct Block {
-    std::atomic<uint64> write_pos{0};
-    char pad[TD_CONCURRENCY_PAD - sizeof(std::atomic<uint64>)];
-    std::atomic<uint64> read_pos{0};
-    char pad2[TD_CONCURRENCY_PAD - sizeof(std::atomic<uint64>)];
-    std::array<OneValue<T>, 1024> data;
-    char pad3[TD_CONCURRENCY_PAD];
-  };
-  struct Node {
-    Node() = default;
-
-    Block block;
-    std::atomic<Node *> next{nullptr};
-    char pad[TD_CONCURRENCY_PAD - sizeof(std::atomic<Node *>)];
-  };
-  std::atomic<Node *> write_pos_{nullptr};
-  char pad[TD_CONCURRENCY_PAD - sizeof(std::atomic<Node *>)];
-  std::atomic<Node *> read_pos_{nullptr};
-  char pad2[TD_CONCURRENCY_PAD - sizeof(std::atomic<Node *>)];
-  HazardPointers<Node, 1> hazard_pointers_;
-  // HazardPointers class is already padded
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MpmcWaiter.h b/third-party/td/td/tdutils/td/utils/MpmcWaiter.h
deleted file mode 100644
index 25f1538dda..0000000000
--- a/third-party/td/td/tdutils/td/utils/MpmcWaiter.h
+++ /dev/null
@@ -1,332 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/sleep.h"
-
-#include <algorithm>
-#include <atomic>
-#include <condition_variable>
-#include <mutex>
-
-namespace td {
-
-class MpmcEagerWaiter {
- public:
-  struct Slot {
-    explicit Slot(uint32 worker_id) : yields(0), worker_id(worker_id) {
-    }
-
-   private:
-    friend class MpmcEagerWaiter;
-    int yields;
-    uint32 worker_id;
-  };
-
-  void wait(Slot &slot) {
-    if (slot.yields < RoundsTillSleepy) {
-      yield();
-      slot.yields++;
-    } else if (slot.yields == RoundsTillSleepy) {
-      auto state = state_.load(std::memory_order_relaxed);
-      if (!State::has_worker(state)) {
-        auto new_state = State::with_worker(state, slot.worker_id);
-        if (state_.compare_exchange_strong(state, new_state, std::memory_order_acq_rel)) {
-          yield();
-          slot.yields++;
-          return;
-        }
-        if (state == State::awake()) {
-          slot.yields = 0;
-          return;
-        }
-      }
-      yield();
-      slot.yields = 0;
-    } else if (slot.yields < RoundsTillAsleep) {
-      auto state = state_.load(std::memory_order_acquire);
-      if (State::still_sleepy(state, slot.worker_id)) {
-        yield();
-        slot.yields++;
-        return;
-      }
-      slot.yields = 0;
-    } else {
-      auto state = state_.load(std::memory_order_acquire);
-      if (State::still_sleepy(state, slot.worker_id)) {
-        std::unique_lock<std::mutex> lock(mutex_);
-        if (state_.compare_exchange_strong(state, State::asleep(), std::memory_order_acq_rel)) {
-          condition_variable_.wait(lock);
-        }
-      }
-      slot.yields = 0;
-    }
-  }
-
-  void stop_wait(Slot &slot) {
-    if (slot.yields > RoundsTillSleepy) {
-      notify_cold();
-    }
-    slot.yields = 0;
-  }
-
-  void close() {
-  }
-
-  void notify() {
-    std::atomic_thread_fence(std::memory_order_seq_cst);
-    if (state_.load(std::memory_order_acquire) == State::awake()) {
-      return;
-    }
-    notify_cold();
-  }
-
- private:
-  struct State {
-    static constexpr uint32 awake() {
-      return 0;
-    }
-    static constexpr uint32 asleep() {
-      return 1;
-    }
-    static bool is_asleep(uint32 state) {
-      return (state & 1) != 0;
-    }
-    static bool has_worker(uint32 state) {
-      return (state >> 1) != 0;
-    }
-    static int32 with_worker(uint32 state, uint32 worker) {
-      return state | ((worker + 1) << 1);
-    }
-    static bool still_sleepy(uint32 state, uint32 worker) {
-      return (state >> 1) == (worker + 1);
-    }
-  };
-  enum { RoundsTillSleepy = 32, RoundsTillAsleep = 64 };
-  // enum { RoundsTillSleepy = 1, RoundsTillAsleep = 2 };
-  std::atomic<uint32> state_{State::awake()};
-  std::mutex mutex_;
-  std::condition_variable condition_variable_;
-
-  void notify_cold() {
-    auto old_state = state_.exchange(State::awake(), std::memory_order_release);
-    if (State::is_asleep(old_state)) {
-      std::lock_guard<std::mutex> guard(mutex_);
-      condition_variable_.notify_all();
-    }
-  }
-  static void yield() {
-    // whatever, this is better than sched_yield
-    usleep_for(1);
-  }
-};
-
-class MpmcSleepyWaiter {
- public:
-  struct Slot {
-   private:
-    friend class MpmcSleepyWaiter;
-
-    enum State { Search, Work, Sleep } state_{Work};
-
-    void park() {
-      std::unique_lock<std::mutex> guard(mutex_);
-      condition_variable_.wait(guard, [&] { return unpark_flag_; });
-      unpark_flag_ = false;
-    }
-
-    bool cancel_park() {
-      auto res = unpark_flag_;
-      unpark_flag_ = false;
-      return res;
-    }
-
-    void unpark() {
-      //TODO: try to unlock guard before notify_all
-      std::unique_lock<std::mutex> guard(mutex_);
-      unpark_flag_ = true;
-      condition_variable_.notify_all();
-    }
-
-    std::mutex mutex_;
-    std::condition_variable condition_variable_;
-    bool unpark_flag_{false};  // TODO: move out of lock
-    int yield_cnt{0};
-    int32 worker_id{0};
-
-   public:
-    char padding[TD_CONCURRENCY_PAD];
-
-    explicit Slot(int32 worker_id) : state_(State::Work), worker_id(worker_id) {
-      VLOG(waiter) << "Init slot " << worker_id;
-    }
-  };
-
-  // There are a lot of workers
-  // Each has a slot
-  //
-  // States of a worker:
-  //   - searching for work | Search
-  //   - processing work    | Work
-  //   - sleeping           | Sleep
-  //
-  // When somebody adds a work it calls notify
-  //
-  // notify
-  //   if there are workers in search phase do nothing.
-  //   if all workers are awake do nothing
-  //   otherwise wake some random worker
-  //
-  // Initially all workers are in Search mode.
-  //
-  // When worker found nothing it may try to call wait.
-  // This may put it in a Sleep for some time.
-  // After wait returns worker will be in Search state again.
-  //
-  // If a worker found a work and ready to process it, then it may call stop_wait.
-  // This will cause transition from Search to Work state.
-  //
-  // Main invariant:
-  // After notify is called there should be at least on worker in Search or Work state.
-  // If possible - in Search state
-  //
-
-  static constexpr int VERBOSITY_NAME(waiter) = VERBOSITY_NAME(DEBUG) + 10;
-  void wait(Slot &slot) {
-    if (slot.state_ == Slot::State::Work) {
-      VLOG(waiter) << "Work -> Search";
-      state_++;
-      slot.state_ = Slot::State::Search;
-      slot.yield_cnt = 0;
-      return;
-    }
-    if (slot.state_ == Slot::Search) {
-      if (slot.yield_cnt++ < 10 && false) {
-        // TODO some sleep backoff is possible
-        return;
-      }
-
-      slot.state_ = Slot::State::Sleep;
-      std::unique_lock<std::mutex> guard(sleepers_mutex_);
-      auto state_view = StateView(state_.fetch_add((1 << PARKING_SHIFT) - 1));
-      CHECK(state_view.searching_count != 0);
-      bool should_search = state_view.searching_count == 1;
-      if (closed_) {
-        return;
-      }
-      sleepers_.push_back(&slot);
-      LOG_CHECK(!slot.unpark_flag_) << slot.worker_id;
-      VLOG(waiter) << "Add to sleepers " << slot.worker_id;
-      //guard.unlock();
-      if (should_search) {
-        VLOG(waiter) << "Search -> Search once, then Sleep ";
-        return;
-      }
-      VLOG(waiter) << "Search -> Sleep " << state_view.searching_count << " " << state_view.parked_count;
-    }
-
-    CHECK(slot.state_ == Slot::State::Sleep);
-    VLOG(waiter) << "Park " << slot.worker_id;
-    slot.park();
-    VLOG(waiter) << "Resume " << slot.worker_id;
-    slot.state_ = Slot::State::Search;
-    slot.yield_cnt = 0;
-  }
-
-  void stop_wait(Slot &slot) {
-    if (slot.state_ == Slot::State::Work) {
-      return;
-    }
-    if (slot.state_ == Slot::State::Sleep) {
-      VLOG(waiter) << "Search once, then Sleep -> Work/Search " << slot.worker_id;
-      slot.state_ = Slot::State::Work;
-      std::unique_lock<std::mutex> guard(sleepers_mutex_);
-      auto it = std::find(sleepers_.begin(), sleepers_.end(), &slot);
-      if (it != sleepers_.end()) {
-        sleepers_.erase(it);
-        VLOG(waiter) << "Remove from sleepers " << slot.worker_id;
-        state_.fetch_sub((1 << PARKING_SHIFT) - 1);
-        guard.unlock();
-      } else {
-        guard.unlock();
-        VLOG(waiter) << "Not in sleepers " << slot.worker_id;
-        CHECK(slot.cancel_park());
-      }
-    }
-    VLOG(waiter) << "Search once, then Sleep -> Work " << slot.worker_id;
-    slot.state_ = Slot::State::Search;
-    auto state_view = StateView(state_.fetch_sub(1));
-    CHECK(state_view.searching_count != 0);
-    CHECK(state_view.searching_count < 1000);
-    bool should_notify = state_view.searching_count == 1;
-    if (should_notify) {
-      VLOG(waiter) << "Notify others";
-      notify();
-    }
-    VLOG(waiter) << "Search -> Work ";
-    slot.state_ = Slot::State::Work;
-  }
-
-  void notify() {
-    auto view = StateView(state_.load());
-    //LOG(ERROR) << view.parked_count;
-    if (view.searching_count > 0 || view.parked_count == 0) {
-      VLOG(waiter) << "Ignore notify: " << view.searching_count << ' ' << view.parked_count;
-      return;
-    }
-
-    VLOG(waiter) << "Notify: " << view.searching_count << ' ' << view.parked_count;
-    std::unique_lock<std::mutex> guard(sleepers_mutex_);
-
-    view = StateView(state_.load());
-    if (view.searching_count > 0) {
-      VLOG(waiter) << "Skip notify: search is active";
-      return;
-    }
-
-    CHECK(view.parked_count == static_cast<int>(sleepers_.size()));
-    if (sleepers_.empty()) {
-      VLOG(waiter) << "Skip notify: no sleepers";
-      return;
-    }
-
-    auto sleeper = sleepers_.back();
-    sleepers_.pop_back();
-    state_.fetch_sub((1 << PARKING_SHIFT) - 1);
-    VLOG(waiter) << "Unpark " << sleeper->worker_id;
-    sleeper->unpark();
-  }
-
-  void close() {
-    StateView state(state_.load());
-    LOG_CHECK(state.parked_count == 0) << state.parked_count;
-    LOG_CHECK(state.searching_count == 0) << state.searching_count;
-  }
-
- private:
-  static constexpr int32 PARKING_SHIFT = 16;
-  struct StateView {
-    int32 parked_count;
-    int32 searching_count;
-    explicit StateView(int32 x) {
-      parked_count = x >> PARKING_SHIFT;
-      searching_count = x & ((1 << PARKING_SHIFT) - 1);
-    }
-  };
-  std::atomic<int32> state_{0};
-
-  std::mutex sleepers_mutex_;
-  vector<Slot *> sleepers_;
-
-  bool closed_ = false;
-};
-
-using MpmcWaiter = MpmcSleepyWaiter;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MpscLinkQueue.h b/third-party/td/td/tdutils/td/utils/MpscLinkQueue.h
deleted file mode 100644
index b062701f66..0000000000
--- a/third-party/td/td/tdutils/td/utils/MpscLinkQueue.h
+++ /dev/null
@@ -1,173 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <atomic>
-
-namespace td {
-//NB: holder of the queue holds all responsibility of freeing its nodes
-class MpscLinkQueueImpl {
- public:
-  class Node;
-  class Reader;
-
-  void push(Node *node) {
-    node->next_ = head_.load(std::memory_order_relaxed);
-    while (!head_.compare_exchange_strong(node->next_, node, std::memory_order_release, std::memory_order_relaxed)) {
-    }
-  }
-
-  void push_unsafe(Node *node) {
-    node->next_ = head_.load(std::memory_order_relaxed);
-    head_.store(node, std::memory_order_relaxed);
-  }
-
-  void pop_all(Reader &reader) {
-    return reader.add(head_.exchange(nullptr, std::memory_order_acquire));
-  }
-
-  void pop_all_unsafe(Reader &reader) {
-    return reader.add(head_.exchange(nullptr, std::memory_order_relaxed));
-  }
-
-  class Node {
-    friend class MpscLinkQueueImpl;
-    Node *next_{nullptr};
-  };
-
-  class Reader {
-   public:
-    Node *read() {
-      auto old_head = head_;
-      if (head_) {
-        head_ = head_->next_;
-      }
-      return old_head;
-    }
-    void delay(Node *node) {
-      node->next_ = head_;
-      if (!head_) {
-        tail_ = node;
-      }
-      head_ = node;
-    }
-    size_t calc_size() const {
-      size_t res = 0;
-      for (auto it = head_; it != nullptr; it = it->next_, res++) {
-      }
-      return res;
-    }
-
-   private:
-    friend class MpscLinkQueueImpl;
-    void add(Node *node) {
-      if (node == nullptr) {
-        return;
-      }
-      // Reverse list
-      Node *tail = node;
-      Node *head = nullptr;
-      while (node) {
-        auto next = node->next_;
-        node->next_ = head;
-        head = node;
-        node = next;
-      }
-      if (head_ == nullptr) {
-        head_ = head;
-      } else {
-        tail_->next_ = head;
-      }
-      tail_ = tail;
-    }
-    Node *head_{nullptr};
-    Node *tail_{nullptr};
-  };
-
- private:
-  std::atomic<Node *> head_{nullptr};
-};
-
-// Uses MpscLinkQueueImpl.
-// Node should have to_mpsc_link_queue_node and from_mpsc_link_queue_node functions
-template <class Node>
-class MpscLinkQueue {
- public:
-  void push(Node node) {
-    impl_.push(node.to_mpsc_link_queue_node());
-  }
-  void push_unsafe(Node node) {
-    impl_.push_unsafe(node.to_mpsc_link_queue_node());
-  }
-  class Reader {
-   public:
-    ~Reader() {
-      CHECK(!read());
-    }
-    Node read() {
-      auto node = impl_.read();
-      if (!node) {
-        return {};
-      }
-      return Node::from_mpsc_link_queue_node(node);
-    }
-    void delay(Node node) {
-      impl_.delay(node.to_mpsc_link_queue_node());
-    }
-    size_t calc_size() const {
-      return impl_.calc_size();
-    }
-
-   private:
-    friend class MpscLinkQueue;
-
-    MpscLinkQueueImpl::Reader impl_;
-    MpscLinkQueueImpl::Reader &impl() {
-      return impl_;
-    }
-  };
-
-  void pop_all(Reader &reader) {
-    return impl_.pop_all(reader.impl());
-  }
-  void pop_all_unsafe(Reader &reader) {
-    return impl_.pop_all_unsafe(reader.impl());
-  }
-
- private:
-  MpscLinkQueueImpl impl_;
-};
-
-template <class Value>
-class MpscLinkQueueUniquePtrNode {
- public:
-  MpscLinkQueueUniquePtrNode() = default;
-  explicit MpscLinkQueueUniquePtrNode(unique_ptr<Value> ptr) : ptr_(std::move(ptr)) {
-  }
-
-  MpscLinkQueueImpl::Node *to_mpsc_link_queue_node() {
-    return ptr_.release()->to_mpsc_link_queue_node();
-  }
-  static MpscLinkQueueUniquePtrNode<Value> from_mpsc_link_queue_node(MpscLinkQueueImpl::Node *node) {
-    return MpscLinkQueueUniquePtrNode<Value>(unique_ptr<Value>(Value::from_mpsc_link_queue_node(node)));
-  }
-
-  explicit operator bool() const noexcept {
-    return ptr_ != nullptr;
-  }
-
-  Value &value() {
-    return *ptr_;
-  }
-
- private:
-  unique_ptr<Value> ptr_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/MpscPollableQueue.h b/third-party/td/td/tdutils/td/utils/MpscPollableQueue.h
deleted file mode 100644
index 25dd70dabf..0000000000
--- a/third-party/td/td/tdutils/td/utils/MpscPollableQueue.h
+++ /dev/null
@@ -1,159 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/EventFd.h"
-
-#if !TD_EVENTFD_UNSUPPORTED
-
-#include "td/utils/port/Mutex.h"
-
-#include <utility>
-
-namespace td {
-// interface like in PollableQueue
-template <class T>
-class MpscPollableQueue {
- public:
-  using ValueType = T;
-
-  int reader_wait_nonblock() {
-    auto ready = reader_vector_.size() - reader_pos_;
-    if (ready != 0) {
-      return narrow_cast<int>(ready);
-    }
-
-    for (int i = 0; i < 2; i++) {
-      auto guard = lock_.lock();
-      if (writer_vector_.empty()) {
-        if (i == 1) {
-          reader_vector_.clear();
-          reader_pos_ = 0;
-          wait_event_fd_ = true;
-          return 0;
-        }
-      } else {
-        reader_vector_.clear();
-        reader_pos_ = 0;
-        std::swap(writer_vector_, reader_vector_);
-        return narrow_cast<int>(reader_vector_.size());
-      }
-      event_fd_.acquire();
-    }
-    UNREACHABLE();
-  }
-  ValueType reader_get_unsafe() {
-    return std::move(reader_vector_[reader_pos_++]);
-  }
-  void reader_flush() {
-    //nop
-  }
-  void writer_put(ValueType value) {
-    auto guard = lock_.lock();
-    writer_vector_.push_back(std::move(value));
-    if (wait_event_fd_) {
-      wait_event_fd_ = false;
-      guard.reset();
-      event_fd_.release();
-    }
-  }
-  EventFd &reader_get_event_fd() {
-    return event_fd_;
-  }
-  void writer_flush() {
-    //nop
-  }
-
-  bool is_empty() {
-    auto guard = lock_.lock();
-    return writer_vector_.empty() && reader_vector_.empty();
-  }
-
-  void init() {
-    event_fd_.init();
-  }
-  void destroy() {
-    if (!event_fd_.empty()) {
-      event_fd_.close();
-      wait_event_fd_ = false;
-      writer_vector_.clear();
-      reader_vector_.clear();
-      reader_pos_ = 0;
-    }
-  }
-
-  // Just an example of usage
-  int reader_wait() {
-    int res;
-    while ((res = reader_wait_nonblock()) == 0) {
-      reader_get_event_fd().wait(1000);
-    }
-    return res;
-  }
-
- private:
-  Mutex lock_;
-  bool wait_event_fd_{false};
-  EventFd event_fd_;
-  std::vector<ValueType> writer_vector_;
-  std::vector<ValueType> reader_vector_;
-  size_t reader_pos_{0};
-};
-
-}  // namespace td
-
-#else
-
-namespace td {
-
-// dummy implementation which shouldn't be used
-
-template <class T>
-class MpscPollableQueue {
- public:
-  using ValueType = T;
-
-  void init() {
-    UNREACHABLE();
-  }
-
-  template <class PutValueType>
-  void writer_put(PutValueType &&value) {
-    UNREACHABLE();
-  }
-
-  void writer_flush() {
-    UNREACHABLE();
-  }
-
-  int reader_wait_nonblock() {
-    UNREACHABLE();
-    return 0;
-  }
-
-  ValueType reader_get_unsafe() {
-    UNREACHABLE();
-    return ValueType();
-  }
-
-  void reader_flush() {
-    UNREACHABLE();
-  }
-
-  MpscPollableQueue() = default;
-  MpscPollableQueue(const MpscPollableQueue &) = delete;
-  MpscPollableQueue &operator=(const MpscPollableQueue &) = delete;
-  MpscPollableQueue(MpscPollableQueue &&) = delete;
-  MpscPollableQueue &operator=(MpscPollableQueue &&) = delete;
-  ~MpscPollableQueue() = default;
-};
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/Named.h b/third-party/td/td/tdutils/td/utils/Named.h
deleted file mode 100644
index 1c7b88fd48..0000000000
--- a/third-party/td/td/tdutils/td/utils/Named.h
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class Named {
- public:
-  Slice get_name() const {
-    return name_;
-  }
-  void set_name(Slice name) {
-    name_ = name.str();
-  }
-
- private:
-  string name_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/NullLog.h b/third-party/td/td/tdutils/td/utils/NullLog.h
deleted file mode 100644
index 1dc96bcaa7..0000000000
--- a/third-party/td/td/tdutils/td/utils/NullLog.h
+++ /dev/null
@@ -1,19 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class NullLog final : public LogInterface {
-  void do_append(int /*log_level*/, CSlice /*slice*/) final {
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ObjectPool.h b/third-party/td/td/tdutils/td/utils/ObjectPool.h
deleted file mode 100644
index b3aebb6155..0000000000
--- a/third-party/td/td/tdutils/td/utils/ObjectPool.h
+++ /dev/null
@@ -1,248 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-#include <atomic>
-#include <memory>
-#include <utility>
-
-namespace td {
-// It is draft object pool implementation
-//
-// Compared with std::shared_ptr:
-// + WeakPtr are much faster. Just pointer copy. No barriers, no atomics.
-// - We can't destroy object, because we don't know if it is pointed to by some weak pointer
-//
-template <class DataT>
-class ObjectPool {
-  struct Storage;
-
- public:
-  class WeakPtr {
-   public:
-    WeakPtr() : generation_(-1), storage_(nullptr) {
-    }
-    WeakPtr(int32 generation, Storage *storage) : generation_(generation), storage_(storage) {
-    }
-
-    DataT &operator*() const {
-      return storage_->data;
-    }
-
-    DataT *operator->() const {
-      return &**this;
-    }
-
-    // Pattern of usage: 1. Read an object 2. Check if read was valid via is_alive
-    //
-    // It is not very usual case of acquire/release use.
-    // We publish new generation via destruction of the data instead of publishing the object via some flag.
-    // In usual case if we see a flag, then we are able to use an object.
-    // In our case if we have used an object and it is already invalid, then generation will mismatch.
-    bool is_alive() const {
-      if (!storage_) {
-        return false;
-      }
-      std::atomic_thread_fence(std::memory_order_acquire);
-      return generation_ == storage_->generation.load(std::memory_order_relaxed);
-    }
-
-    // Used for ActorId
-    bool is_alive_unsafe() const {
-      if (!storage_) {
-        return false;
-      }
-      return generation_ == storage_->generation.load(std::memory_order_relaxed);
-    }
-
-    bool empty() const {
-      return storage_ == nullptr;
-    }
-    void clear() {
-      generation_ = -1;
-      storage_ = nullptr;
-    }
-    int32 generation() {
-      return generation_;
-    }
-
-   private:
-    int32 generation_;
-    Storage *storage_;
-  };
-
-  class OwnerPtr {
-   public:
-    OwnerPtr() = default;
-    OwnerPtr(const OwnerPtr &) = delete;
-    OwnerPtr &operator=(const OwnerPtr &) = delete;
-    OwnerPtr(OwnerPtr &&other) noexcept : storage_(other.storage_), parent_(other.parent_) {
-      other.storage_ = nullptr;
-      other.parent_ = nullptr;
-    }
-    OwnerPtr &operator=(OwnerPtr &&other) noexcept {
-      if (this != &other) {
-        storage_ = other.storage_;
-        parent_ = other.parent_;
-        other.storage_ = nullptr;
-        other.parent_ = nullptr;
-      }
-      return *this;
-    }
-    ~OwnerPtr() {
-      reset();
-    }
-
-    DataT *get() {
-      return &storage_->data;
-    }
-    DataT &operator*() {
-      return *get();
-    }
-    DataT *operator->() {
-      return get();
-    }
-
-    const DataT *get() const {
-      return &storage_->data;
-    }
-    const DataT &operator*() const {
-      return *get();
-    }
-    const DataT *operator->() const {
-      return get();
-    }
-
-    WeakPtr get_weak() {
-      return WeakPtr(storage_->generation.load(std::memory_order_relaxed), storage_);
-    }
-    int32 generation() {
-      return storage_->generation.load(std::memory_order_relaxed);
-    }
-
-    Storage *release() {
-      auto result = storage_;
-      storage_ = nullptr;
-      return result;
-    }
-
-    bool empty() const {
-      return storage_ == nullptr;
-    }
-
-    void reset() {
-      if (storage_ != nullptr) {
-        // for crazy cases when data owns owner pointer to itself.
-        auto tmp = storage_;
-        storage_ = nullptr;
-        parent_->release(OwnerPtr(tmp, parent_));
-      }
-    }
-
-   private:
-    friend class ObjectPool;
-    OwnerPtr(Storage *storage, ObjectPool<DataT> *parent) : storage_(storage), parent_(parent) {
-    }
-    Storage *storage_ = nullptr;
-    ObjectPool<DataT> *parent_ = nullptr;
-  };
-
-  template <class... ArgsT>
-  OwnerPtr create(ArgsT &&...args) {
-    Storage *storage = get_storage();
-    storage->init_data(std::forward<ArgsT>(args)...);
-    return OwnerPtr(storage, this);
-  }
-
-  OwnerPtr create_empty() {
-    Storage *storage = get_storage();
-    return OwnerPtr(storage, this);
-  }
-
-  void set_check_empty(bool flag) {
-    check_empty_flag_ = flag;
-  }
-
-  void release(OwnerPtr &&owner_ptr) {
-    Storage *storage = owner_ptr.release();
-    storage->destroy_data();
-    release_storage(storage);
-  }
-
-  ObjectPool() = default;
-  ObjectPool(const ObjectPool &) = delete;
-  ObjectPool &operator=(const ObjectPool &) = delete;
-  ObjectPool(ObjectPool &&) = delete;
-  ObjectPool &operator=(ObjectPool &&) = delete;
-  ~ObjectPool() {
-    while (head_.load()) {
-      auto to_delete = head_.load();
-      head_ = to_delete->next;
-      delete to_delete;
-      storage_count_--;
-    }
-    LOG_CHECK(storage_count_.load() == 0) << storage_count_.load();
-  }
-
- private:
-  struct Storage {
-    // union {
-    DataT data;
-    //};
-    Storage *next = nullptr;
-    std::atomic<int32> generation{1};
-
-    template <class... ArgsT>
-    void init_data(ArgsT &&...args) {
-      // new  (&data) DataT(std::forward<ArgsT>(args)...);
-      data = DataT(std::forward<ArgsT>(args)...);
-    }
-    void destroy_data() {
-      generation.fetch_add(1, std::memory_order_relaxed);
-      std::atomic_thread_fence(std::memory_order_release);
-      data.clear();
-    }
-  };
-
-  std::atomic<int32> storage_count_{0};
-  std::atomic<Storage *> head_{static_cast<Storage *>(nullptr)};
-  bool check_empty_flag_ = false;
-
-  // TODO(perf): allocation Storages in chunks? Anyway, we won't be able to release them.
-  // TODO(perf): memory order
-  // TODO(perf): use another non lockfree list for release on the same thread
-  // only one thread, so no aba problem
-  Storage *get_storage() {
-    if (head_.load() == nullptr) {
-      storage_count_++;
-      return new Storage();
-    }
-    Storage *res;
-    while (true) {
-      res = head_.load();
-      auto *next = res->next;
-      if (head_.compare_exchange_weak(res, next)) {
-        break;
-      }
-    }
-    return res;
-  }
-  // release can be called from other thread
-  void release_storage(Storage *storage) {
-    while (true) {
-      auto *save_head = head_.load();
-      storage->next = save_head;
-      if (head_.compare_exchange_weak(save_head, storage)) {
-        break;
-      }
-    }
-  }
-};
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Observer.h b/third-party/td/td/tdutils/td/utils/Observer.h
deleted file mode 100644
index c0ab830332..0000000000
--- a/third-party/td/td/tdutils/td/utils/Observer.h
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class ObserverBase {
- public:
-  ObserverBase() = default;
-  ObserverBase(const ObserverBase &) = delete;
-  ObserverBase &operator=(const ObserverBase &) = delete;
-  ObserverBase(ObserverBase &&) = delete;
-  ObserverBase &operator=(ObserverBase &&) = delete;
-  virtual ~ObserverBase() = default;
-
-  virtual void notify() = 0;
-};
-
-class Observer final : private ObserverBase {
- public:
-  Observer() = default;
-  explicit Observer(unique_ptr<ObserverBase> &&ptr) : observer_ptr_(std::move(ptr)) {
-  }
-
-  void notify() final {
-    if (observer_ptr_) {
-      observer_ptr_->notify();
-    }
-  }
-
- private:
-  unique_ptr<ObserverBase> observer_ptr_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/OptionParser.cpp b/third-party/td/td/tdutils/td/utils/OptionParser.cpp
deleted file mode 100644
index 6abf8c6087..0000000000
--- a/third-party/td/td/tdutils/td/utils/OptionParser.cpp
+++ /dev/null
@@ -1,263 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/OptionParser.h"
-
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/PathView.h"
-#include "td/utils/SliceBuilder.h"
-
-#if TD_PORT_WINDOWS
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-#include "td/utils/port/wstring_convert.h"
-#endif
-#endif
-
-#if TD_PORT_WINDOWS
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-#include <shellapi.h>
-#endif
-#endif
-
-namespace td {
-
-void OptionParser::set_usage(Slice executable_name, Slice usage) {
-  PathView path_view(executable_name);
-  usage_ = PSTRING() << path_view.file_name() << " " << usage;
-}
-
-void OptionParser::set_description(string description) {
-  description_ = std::move(description);
-}
-
-void OptionParser::add_option(Option::Type type, char short_key, Slice long_key, Slice description,
-                              std::function<Status(Slice)> callback) {
-  for (auto &option : options_) {
-    if ((short_key != '\0' && option.short_key == short_key) || (!long_key.empty() && long_key == option.long_key)) {
-      LOG(ERROR) << "Ignore duplicate option '" << (short_key == '\0' ? '-' : short_key) << "' '" << long_key << "'";
-    }
-  }
-  options_.push_back(Option{type, short_key, long_key.str(), description.str(), std::move(callback)});
-}
-
-void OptionParser::add_checked_option(char short_key, Slice long_key, Slice description,
-                                      std::function<Status(Slice)> callback) {
-  add_option(Option::Type::Arg, short_key, long_key, description, std::move(callback));
-}
-
-void OptionParser::add_checked_option(char short_key, Slice long_key, Slice description,
-                                      std::function<Status(void)> callback) {
-  add_option(Option::Type::NoArg, short_key, long_key, description,
-             [callback = std::move(callback)](Slice) { return callback(); });
-}
-
-void OptionParser::add_option(char short_key, Slice long_key, Slice description, std::function<void(Slice)> callback) {
-  add_option(Option::Type::Arg, short_key, long_key, description, [callback = std::move(callback)](Slice parameter) {
-    callback(parameter);
-    return Status::OK();
-  });
-}
-
-void OptionParser::add_option(char short_key, Slice long_key, Slice description, std::function<void(void)> callback) {
-  add_option(Option::Type::NoArg, short_key, long_key, description, [callback = std::move(callback)](Slice) {
-    callback();
-    return Status::OK();
-  });
-}
-
-void OptionParser::add_check(std::function<Status()> check) {
-  checks_.push_back(std::move(check));
-}
-
-Result<vector<char *>> OptionParser::run(int argc, char *argv[], int expected_non_option_count) {
-#if TD_PORT_WINDOWS
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-  LPWSTR *utf16_argv = CommandLineToArgvW(GetCommandLineW(), &argc);
-  if (utf16_argv == nullptr) {
-    return Status::Error("Failed to parse command line");
-  }
-  vector<string> args_storage(argc);
-  vector<char *> args(argc);
-  for (int i = 0; i < argc; i++) {
-    TRY_RESULT_ASSIGN(args_storage[i], from_wstring(utf16_argv[i]));
-    args[i] = &args_storage[i][0];
-  }
-  LocalFree(utf16_argv);
-  argv = &args[0];
-#endif
-#endif
-
-  return run_impl(argc, argv, expected_non_option_count);
-}
-
-Result<vector<char *>> OptionParser::run_impl(int argc, char *argv[], int expected_non_option_count) {
-  FlatHashMap<char, const Option *> short_options;
-  FlatHashMap<string, const Option *> long_options;
-  for (auto &opt : options_) {
-    if (opt.short_key != '\0') {
-      short_options[opt.short_key] = &opt;
-    }
-    if (!opt.long_key.empty()) {
-      long_options[opt.long_key] = &opt;
-    }
-  }
-
-  vector<char *> non_options;
-  for (int arg_pos = 1; arg_pos < argc; arg_pos++) {
-    const char *arg = argv[arg_pos];
-    if (arg[0] != '-' || arg[1] == '\0') {
-      non_options.push_back(argv[arg_pos]);
-      continue;
-    }
-    if (arg[1] == '-' && arg[2] == '\0') {
-      // "--"; after it everything is non-option
-      while (++arg_pos < argc) {
-        non_options.push_back(argv[arg_pos]);
-      }
-      break;
-    }
-
-    if (arg[1] == '-') {
-      // long option
-      Slice long_arg(arg + 2);
-      Slice parameter;
-      auto equal_pos = long_arg.find('=');
-      bool has_equal = equal_pos != Slice::npos;
-      if (has_equal) {
-        parameter = long_arg.substr(equal_pos + 1);
-        long_arg = long_arg.substr(0, equal_pos);
-      }
-
-      auto it = long_options.find(long_arg.str());
-      if (it == long_options.end()) {
-        return Status::Error(PSLICE() << "Option \"" << long_arg << "\" is unrecognized");
-      }
-
-      auto option = it->second;
-      switch (option->type) {
-        case Option::Type::NoArg:
-          if (has_equal) {
-            return Status::Error(PSLICE() << "Option \"" << long_arg << "\" must not have an argument");
-          }
-          break;
-        case Option::Type::Arg:
-          if (!has_equal) {
-            if (++arg_pos == argc) {
-              return Status::Error(PSLICE() << "Option \"" << long_arg << "\" requires an argument");
-            }
-            parameter = Slice(argv[arg_pos]);
-          }
-          break;
-        default:
-          UNREACHABLE();
-      }
-
-      TRY_STATUS(option->arg_callback(parameter));
-      continue;
-    }
-
-    for (size_t opt_pos = 1; arg[opt_pos] != '\0'; opt_pos++) {
-      auto it = short_options.find(arg[opt_pos]);
-      if (it == short_options.end()) {
-        return Status::Error(PSLICE() << "Option \"" << arg[opt_pos] << "\" is unrecognized");
-      }
-
-      auto option = it->second;
-      Slice parameter;
-      switch (option->type) {
-        case Option::Type::NoArg:
-          // nothing to do
-          break;
-        case Option::Type::Arg:
-          if (arg[opt_pos + 1] == '\0') {
-            if (++arg_pos == argc) {
-              return Status::Error(PSLICE() << "Option \"" << arg[opt_pos] << "\" requires an argument");
-            }
-            parameter = Slice(argv[arg_pos]);
-          } else {
-            parameter = Slice(arg + opt_pos + 1);
-            opt_pos += parameter.size();
-          }
-          break;
-        default:
-          UNREACHABLE();
-      }
-
-      TRY_STATUS(option->arg_callback(parameter));
-    }
-  }
-  if (expected_non_option_count >= 0 && non_options.size() != static_cast<size_t>(expected_non_option_count)) {
-    if (expected_non_option_count == 0) {
-      return Status::Error("Unexpected non-option parameters specified");
-    }
-    if (non_options.size() > static_cast<size_t>(expected_non_option_count)) {
-      return Status::Error("Too many non-option parameters specified");
-    } else {
-      return Status::Error("Too few non-option parameters specified");
-    }
-  }
-  for (auto &check : checks_) {
-    TRY_STATUS(check());
-  }
-
-  return std::move(non_options);
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const OptionParser &o) {
-  if (!o.usage_.empty()) {
-    sb << "Usage: " << o.usage_ << "\n\n";
-  }
-  if (!o.description_.empty()) {
-    sb << o.description_ << ". ";
-  }
-  sb << "Options:\n";
-
-  size_t max_length = 0;
-  for (auto &opt : o.options_) {
-    size_t length = 2;
-    if (!opt.long_key.empty()) {
-      length += 4 + opt.long_key.size();
-    }
-    if (opt.type != OptionParser::Option::Type::NoArg) {
-      length += 6;
-    }
-    if (length > max_length) {
-      max_length = length;
-    }
-  }
-  max_length++;
-
-  for (auto &opt : o.options_) {
-    bool has_short_key = opt.short_key != '\0';
-    sb << "  ";
-    size_t length = max_length;
-    if (has_short_key) {
-      sb << '-' << opt.short_key;
-    } else {
-      sb << "  ";
-    }
-    length -= 2;
-    if (!opt.long_key.empty()) {
-      if (has_short_key) {
-        sb << ", ";
-      } else {
-        sb << "  ";
-      }
-      sb << "--" << opt.long_key;
-      length -= 4 + opt.long_key.size();
-    }
-    if (opt.type != OptionParser::Option::Type::NoArg) {
-      sb << "=<arg>";
-      length -= 6;
-    }
-    sb << string(length, ' ') << opt.description;
-    sb << '\n';
-  }
-  return sb;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/OptionParser.h b/third-party/td/td/tdutils/td/utils/OptionParser.h
deleted file mode 100644
index 25567bbb3b..0000000000
--- a/third-party/td/td/tdutils/td/utils/OptionParser.h
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <functional>
-
-namespace td {
-
-class OptionParser {
-  class Option {
-   public:
-    enum class Type { NoArg, Arg };
-    Type type;
-    char short_key;
-    string long_key;
-    string description;
-    std::function<Status(Slice)> arg_callback;
-  };
-
-  void add_option(Option::Type type, char short_key, Slice long_key, Slice description,
-                  std::function<Status(Slice)> callback);
-
- public:
-  template <class T>
-  static std::function<Status(Slice)> parse_integer(T &value) {
-    return [&value](Slice value_str) {
-      TRY_RESULT_ASSIGN(value, to_integer_safe<T>(value_str));
-      return Status::OK();
-    };
-  }
-
-  static std::function<void(Slice)> parse_string(string &value) {
-    return [&value](Slice value_str) {
-      value = value_str.str();
-    };
-  }
-
-  void set_usage(Slice executable_name, Slice usage);
-
-  void set_description(string description);
-
-  void add_checked_option(char short_key, Slice long_key, Slice description, std::function<Status(Slice)> callback);
-
-  void add_checked_option(char short_key, Slice long_key, Slice description, std::function<Status(void)> callback);
-
-  void add_option(char short_key, Slice long_key, Slice description, std::function<Status(Slice)> callback) = delete;
-
-  void add_option(char short_key, Slice long_key, Slice description, std::function<Status(void)> callback) = delete;
-
-  void add_option(char short_key, Slice long_key, Slice description, std::function<void(Slice)> callback);
-
-  void add_option(char short_key, Slice long_key, Slice description, std::function<void(void)> callback);
-
-  void add_check(std::function<Status()> check);
-
-  // returns found non-option parameters
-  Result<vector<char *>> run(int argc, char *argv[], int expected_non_option_count = -1) TD_WARN_UNUSED_RESULT;
-
-  // for testing only
-  Result<vector<char *>> run_impl(int argc, char *argv[], int expected_non_option_count) TD_WARN_UNUSED_RESULT;
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const OptionParser &o);
-
- private:
-  vector<Option> options_;
-  vector<std::function<Status()>> checks_;
-  string usage_;
-  string description_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/OrderedEventsProcessor.h b/third-party/td/td/tdutils/td/utils/OrderedEventsProcessor.h
deleted file mode 100644
index 5e37fddc29..0000000000
--- a/third-party/td/td/tdutils/td/utils/OrderedEventsProcessor.h
+++ /dev/null
@@ -1,99 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-#include <utility>
-
-namespace td {
-
-// Process states in order defined by their SeqNo
-template <class DataT>
-class OrderedEventsProcessor {
- public:
-  using SeqNo = uint64;
-
-  OrderedEventsProcessor() = default;
-  explicit OrderedEventsProcessor(SeqNo offset) : offset_(offset), begin_(offset_), end_(offset_) {
-  }
-
-  template <class FunctionT>
-  void clear(FunctionT &&function) {
-    for (auto &it : data_array_) {
-      if (it.second) {
-        function(std::move(it.first));
-      }
-    }
-    *this = OrderedEventsProcessor();
-  }
-  void clear() {
-    *this = OrderedEventsProcessor();
-  }
-  template <class FromDataT, class FunctionT>
-  void add(SeqNo seq_no, FromDataT &&data, FunctionT &&function) {
-    LOG_CHECK(seq_no >= begin_) << seq_no << ">=" << begin_;  // or ignore?
-
-    if (seq_no == begin_) {  // run now
-      begin_++;
-      function(seq_no, std::forward<FromDataT>(data));
-
-      while (begin_ < end_) {
-        auto &data_flag = data_array_[static_cast<size_t>(begin_ - offset_)];
-        if (!data_flag.second) {
-          break;
-        }
-        function(begin_, std::move(data_flag.first));
-        data_flag.second = false;
-        begin_++;
-      }
-      if (begin_ > end_) {
-        end_ = begin_;
-      }
-      if (begin_ == end_) {
-        offset_ = begin_;
-      }
-
-      // try_compactify
-      auto begin_pos = static_cast<size_t>(begin_ - offset_);
-      if (begin_pos > 5 && begin_pos * 2 > data_array_.size()) {
-        data_array_.erase(data_array_.begin(), data_array_.begin() + begin_pos);
-        offset_ = begin_;
-      }
-    } else {
-      auto pos = static_cast<size_t>(seq_no - offset_);
-      auto need_size = pos + 1;
-      if (data_array_.size() < need_size) {
-        data_array_.resize(need_size);
-      }
-      data_array_[pos].first = std::forward<FromDataT>(data);
-      data_array_[pos].second = true;
-      if (end_ < seq_no + 1) {
-        end_ = seq_no + 1;
-      }
-    }
-  }
-
-  bool has_events() const {
-    return begin_ != end_;
-  }
-  SeqNo max_unfinished_seq_no() {
-    return end_ - 1;
-  }
-  SeqNo max_finished_seq_no() {
-    return begin_ - 1;
-  }
-
- private:
-  SeqNo offset_ = 1;
-  SeqNo begin_ = 1;
-  SeqNo end_ = 1;
-  std::vector<std::pair<DataT, bool>> data_array_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Parser.h b/third-party/td/td/tdutils/td/utils/Parser.h
deleted file mode 100644
index ffe47657f9..0000000000
--- a/third-party/td/td/tdutils/td/utils/Parser.h
+++ /dev/null
@@ -1,189 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-
-#include <cstring>
-#include <utility>
-
-namespace td {
-
-namespace detail {
-
-template <class SliceT>
-class ParserImpl {
- public:
-  explicit ParserImpl(SliceT data) : ptr_(data.begin()), end_(data.end()), status_() {
-  }
-  ParserImpl(ParserImpl &&other) noexcept : ptr_(other.ptr_), end_(other.end_), status_(std::move(other.status_)) {
-    other.clear();
-  }
-  ParserImpl &operator=(ParserImpl &&other) noexcept {
-    if (&other == this) {
-      return *this;
-    }
-    ptr_ = other.ptr_;
-    end_ = other.end_;
-    status_ = std::move(other.status_);
-    other.clear();
-    return *this;
-  }
-  ParserImpl(const ParserImpl &) = delete;
-  ParserImpl &operator=(const ParserImpl &) = delete;
-  ~ParserImpl() = default;
-
-  bool empty() const {
-    return ptr_ == end_;
-  }
-  void clear() {
-    ptr_ = SliceT().begin();
-    end_ = ptr_;
-    status_ = Status::OK();
-  }
-
-  SliceT read_till_nofail(char c) {
-    if (status_.is_error()) {
-      return SliceT();
-    }
-    auto till = static_cast<decltype(ptr_)>(std::memchr(ptr_, c, end_ - ptr_));
-    if (till == nullptr) {
-      till = end_;
-    }
-    SliceT result(ptr_, till);
-    ptr_ = till;
-    return result;
-  }
-
-  SliceT read_till_nofail(Slice str) {
-    if (status_.is_error()) {
-      return SliceT();
-    }
-    auto best_till = end_;
-    for (auto c : str) {
-      auto till = static_cast<decltype(ptr_)>(std::memchr(ptr_, c, end_ - ptr_));
-      if (till != nullptr && till < best_till) {
-        best_till = till;
-      }
-    }
-    SliceT result(ptr_, best_till);
-    ptr_ = best_till;
-    return result;
-  }
-
-  template <class F>
-  SliceT read_while(const F &f) {
-    auto save_ptr = ptr_;
-    while (ptr_ != end_ && f(*ptr_)) {
-      ptr_++;
-    }
-    return SliceT(save_ptr, ptr_);
-  }
-  SliceT read_all() {
-    auto save_ptr = ptr_;
-    ptr_ = end_;
-    return SliceT(save_ptr, ptr_);
-  }
-
-  SliceT read_till(char c) {
-    if (status_.is_error()) {
-      return SliceT();
-    }
-    SliceT res = read_till_nofail(c);
-    if (ptr_ == end_ || ptr_[0] != c) {
-      status_ = Status::Error(PSLICE() << "Read till '" << c << "' failed");
-      return SliceT();
-    }
-    return res;
-  }
-
-  char peek_char() {
-    if (ptr_ == end_) {
-      return 0;
-    }
-    return *ptr_;
-  }
-
-  char *ptr() {
-    return ptr_;
-  }
-
-  void skip_nofail(char c) {
-    if (ptr_ != end_ && ptr_[0] == c) {
-      ptr_++;
-    }
-  }
-  void skip(char c) {
-    if (status_.is_error()) {
-      return;
-    }
-    if (ptr_ == end_ || ptr_[0] != c) {
-      status_ = Status::Error(PSLICE() << "Skip '" << c << "' failed");
-      return;
-    }
-    ptr_++;
-  }
-  bool try_skip(char c) {
-    if (ptr_ != end_ && ptr_[0] == c) {
-      ptr_++;
-      return true;
-    }
-    return false;
-  }
-
-  bool try_skip(Slice prefix) {
-    if (prefix.size() > static_cast<size_t>(end_ - ptr_) || prefix != Slice(ptr_, prefix.size())) {
-      return false;
-    }
-    advance(prefix.size());
-    return true;
-  }
-
-  void skip_till_not(Slice str) {
-    while (ptr_ != end_) {
-      if (std::memchr(str.data(), *ptr_, str.size()) == nullptr) {
-        break;
-      }
-      ptr_++;
-    }
-  }
-  void skip_whitespaces() {
-    skip_till_not(" \t\r\n");
-  }
-  SliceT read_word() {
-    skip_whitespaces();
-    return read_till_nofail(" \t\r\n");
-  }
-
-  SliceT data() const {
-    return SliceT(ptr_, end_);
-  }
-
-  Status &status() {
-    return status_;
-  }
-
-  void advance(size_t diff) {
-    ptr_ += diff;
-    CHECK(ptr_ <= end_);
-  }
-
- private:
-  decltype(std::declval<SliceT>().begin()) ptr_;
-  decltype(std::declval<SliceT>().end()) end_;
-  Status status_;
-};
-
-}  // namespace detail
-
-using Parser = detail::ParserImpl<MutableSlice>;
-using ConstParser = detail::ParserImpl<Slice>;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/PathView.cpp b/third-party/td/td/tdutils/td/utils/PathView.cpp
deleted file mode 100644
index 5a871069d0..0000000000
--- a/third-party/td/td/tdutils/td/utils/PathView.cpp
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/PathView.h"
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-
-namespace td {
-
-PathView::PathView(Slice path) : path_(path) {
-  last_slash_ = narrow_cast<int32>(path_.size()) - 1;
-  while (last_slash_ >= 0 && !is_slash(path_[last_slash_])) {
-    last_slash_--;
-  }
-
-  last_dot_ = static_cast<int32>(path_.size());
-  for (auto i = last_dot_ - 1; i > last_slash_ + 1; i--) {
-    if (path_[i] == '.') {
-      last_dot_ = i;
-      break;
-    }
-  }
-}
-
-Slice PathView::parent_dir_noslash() const {
-  if (last_slash_ < 0) {
-    return Slice(".");
-  }
-  if (last_slash_ == 0) {
-    static char buf[1];
-    buf[0] = TD_DIR_SLASH;
-    return Slice(buf, 1);
-  }
-  return path_.substr(0, last_slash_);
-}
-
-Slice PathView::relative(Slice path, Slice dir, bool force) {
-  if (begins_with(path, dir)) {
-    path.remove_prefix(dir.size());
-    return path;
-  }
-  if (force) {
-    return Slice();
-  }
-  return path;
-}
-
-Slice PathView::dir_and_file(Slice path) {
-  auto last_slash = static_cast<int32>(path.size()) - 1;
-  while (last_slash >= 0 && !is_slash(path[last_slash])) {
-    last_slash--;
-  }
-  if (last_slash < 0) {
-    return Slice();
-  }
-  last_slash--;
-  while (last_slash >= 0 && !is_slash(path[last_slash])) {
-    last_slash--;
-  }
-  if (last_slash < 0) {
-    return Slice();
-  }
-  return path.substr(last_slash + 1);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/PathView.h b/third-party/td/td/tdutils/td/utils/PathView.h
deleted file mode 100644
index e4e067a041..0000000000
--- a/third-party/td/td/tdutils/td/utils/PathView.h
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class PathView {
- public:
-  explicit PathView(Slice path);
-
-  bool empty() const {
-    return path_.empty();
-  }
-
-  bool is_dir() const {
-    if (empty()) {
-      return false;
-    }
-    return is_slash(path_.back());
-  }
-
-  Slice parent_dir() const {
-    return path_.substr(0, last_slash_ + 1);
-  }
-  Slice parent_dir_noslash() const;
-
-  Slice extension() const {
-    if (last_dot_ == static_cast<int32>(path_.size())) {
-      return Slice();
-    }
-    return path_.substr(last_dot_ + 1);
-  }
-
-  Slice without_extension() const {
-    return path_.substr(0, last_dot_);
-  }
-
-  Slice file_stem() const {
-    return path_.substr(last_slash_ + 1, last_dot_ - last_slash_ - 1);
-  }
-
-  Slice file_name() const {
-    return path_.substr(last_slash_ + 1);
-  }
-
-  Slice file_name_without_extension() const {
-    return path_.substr(last_slash_ + 1, last_dot_ - last_slash_ - 1);
-  }
-
-  Slice path() const {
-    return path_;
-  }
-
-  bool is_absolute() const {
-    return !empty() && (is_slash(path_[0]) || (path_.size() >= 3 && path_[1] == ':' && is_slash(path_[2])));
-  }
-
-  bool is_relative() const {
-    return !is_absolute();
-  }
-
-  static Slice relative(Slice path, Slice dir, bool force = false);
-  static Slice dir_and_file(Slice path);
-
- private:
-  static bool is_slash(char c) {
-    return c == '/' || c == '\\';
-  }
-
-  Slice path_;
-  int32 last_slash_;
-  int32 last_dot_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Promise.h b/third-party/td/td/tdutils/td/utils/Promise.h
deleted file mode 100644
index 9d5a344447..0000000000
--- a/third-party/td/td/tdutils/td/utils/Promise.h
+++ /dev/null
@@ -1,383 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/CancellationToken.h"
-#include "td/utils/common.h"
-#include "td/utils/invoke.h"
-#include "td/utils/MovableValue.h"
-#include "td/utils/Status.h"
-
-#include <tuple>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-template <class T = Unit>
-class PromiseInterface {
- public:
-  PromiseInterface() = default;
-  PromiseInterface(const PromiseInterface &) = delete;
-  PromiseInterface &operator=(const PromiseInterface &) = delete;
-  PromiseInterface(PromiseInterface &&) = default;
-  PromiseInterface &operator=(PromiseInterface &&) = default;
-  virtual ~PromiseInterface() = default;
-
-  virtual void set_value(T &&value) {
-    set_result(std::move(value));
-  }
-  virtual void set_error(Status &&error) {
-    set_result(std::move(error));
-  }
-  virtual void set_result(Result<T> &&result) {
-    if (result.is_ok()) {
-      set_value(result.move_as_ok());
-    } else {
-      set_error(result.move_as_error());
-    }
-  }
-
-  virtual bool is_cancellable() const {
-    return false;
-  }
-  virtual bool is_canceled() const {
-    return false;
-  }
-};
-
-template <class T>
-class SafePromise;
-
-template <class T = Unit>
-class Promise;
-
-namespace detail {
-
-template <typename T>
-struct GetArg final : public GetArg<decltype(&T::operator())> {};
-
-template <class C, class R, class Arg>
-class GetArg<R (C::*)(Arg)> {
- public:
-  using type = Arg;
-};
-template <class C, class R, class Arg>
-class GetArg<R (C::*)(Arg) const> {
- public:
-  using type = Arg;
-};
-
-template <class T>
-using get_arg_t = std::decay_t<typename GetArg<T>::type>;
-
-template <class T>
-struct DropResult {
-  using type = T;
-};
-
-template <class T>
-struct DropResult<Result<T>> {
-  using type = T;
-};
-
-template <class T>
-using drop_result_t = typename DropResult<T>::type;
-
-template <class ValueT, class FunctionT>
-class LambdaPromise : public PromiseInterface<ValueT> {
-  enum class State : int32 { Empty, Ready, Complete };
-
- public:
-  void set_value(ValueT &&value) override {
-    CHECK(state_.get() == State::Ready);
-    do_ok(std::move(value));
-    state_ = State::Complete;
-  }
-
-  void set_error(Status &&error) override {
-    if (state_.get() == State::Ready) {
-      do_error(std::move(error));
-      state_ = State::Complete;
-    }
-  }
-  LambdaPromise(const LambdaPromise &) = delete;
-  LambdaPromise &operator=(const LambdaPromise &) = delete;
-  LambdaPromise(LambdaPromise &&) = default;
-  LambdaPromise &operator=(LambdaPromise &&) = default;
-  ~LambdaPromise() override {
-    if (state_.get() == State::Ready) {
-      do_error(Status::Error("Lost promise"));
-    }
-  }
-
-  template <class FromT>
-  LambdaPromise(FromT &&func) : func_(std::forward<FromT>(func)), state_(State::Ready) {
-  }
-
- private:
-  FunctionT func_;
-  MovableValue<State> state_{State::Empty};
-
-  template <class F = FunctionT>
-  std::enable_if_t<is_callable<F, Result<ValueT>>::value, void> do_error(Status &&status) {
-    func_(Result<ValueT>(std::move(status)));
-  }
-  template <class Y, class F = FunctionT>
-  std::enable_if_t<!is_callable<F, Result<ValueT>>::value, void> do_error(Y &&status) {
-    func_(Auto());
-  }
-  template <class F = FunctionT>
-  std::enable_if_t<is_callable<F, Result<ValueT>>::value, void> do_ok(ValueT &&value) {
-    func_(Result<ValueT>(std::move(value)));
-  }
-  template <class F = FunctionT>
-  std::enable_if_t<!is_callable<F, Result<ValueT>>::value, void> do_ok(ValueT &&value) {
-    func_(std::move(value));
-  }
-};
-
-template <class T>
-struct is_promise_interface : std::false_type {};
-
-template <class U>
-struct is_promise_interface<PromiseInterface<U>> : std::true_type {};
-
-template <class U>
-struct is_promise_interface<Promise<U>> : std::true_type {};
-
-template <class T>
-struct is_promise_interface_ptr : std::false_type {};
-
-template <class U>
-struct is_promise_interface_ptr<unique_ptr<U>> : std::true_type {};
-
-template <class T = void, class F = void, std::enable_if_t<std::is_same<T, void>::value, bool> has_t = false>
-auto lambda_promise(F &&f) {
-  return LambdaPromise<drop_result_t<get_arg_t<std::decay_t<F>>>, std::decay_t<F>>(std::forward<F>(f));
-}
-template <class T = void, class F = void, std::enable_if_t<!std::is_same<T, void>::value, bool> has_t = true>
-auto lambda_promise(F &&f) {
-  return LambdaPromise<T, std::decay_t<F>>(std::forward<F>(f));
-}
-
-template <class T, class F,
-          std::enable_if_t<is_promise_interface<std::decay_t<F>>::value, bool> from_promise_interface = true>
-auto &&promise_interface(F &&f) {
-  return std::forward<F>(f);
-}
-
-template <class T, class F,
-          std::enable_if_t<!is_promise_interface<std::decay_t<F>>::value, bool> from_promise_interface = false>
-auto promise_interface(F &&f) {
-  return lambda_promise<T>(std::forward<F>(f));
-}
-
-template <class T, class F,
-          std::enable_if_t<is_promise_interface_ptr<std::decay_t<F>>::value, bool> from_promise_interface = true>
-auto promise_interface_ptr(F &&f) {
-  return std::forward<F>(f);
-}
-
-template <class T, class F,
-          std::enable_if_t<!is_promise_interface_ptr<std::decay_t<F>>::value, bool> from_promise_interface = false>
-auto promise_interface_ptr(F &&f) {
-  return td::make_unique<std::decay_t<decltype(promise_interface<T>(std::forward<F>(f)))>>(
-      promise_interface<T>(std::forward<F>(f)));
-}
-}  // namespace detail
-
-template <class T>
-class Promise {
- public:
-  void set_value(T &&value) {
-    if (!promise_) {
-      return;
-    }
-    promise_->set_value(std::move(value));
-    promise_.reset();
-  }
-  void set_error(Status &&error) {
-    if (!promise_) {
-      return;
-    }
-    promise_->set_error(std::move(error));
-    promise_.reset();
-  }
-  void set_result(Result<T> &&result) {
-    if (!promise_) {
-      return;
-    }
-    promise_->set_result(std::move(result));
-    promise_.reset();
-  }
-  void reset() {
-    promise_.reset();
-  }
-  bool is_cancellable() const {
-    if (!promise_) {
-      return false;
-    }
-    return promise_->is_cancellable();
-  }
-  bool is_canceled() const {
-    if (!promise_) {
-      return false;
-    }
-    return promise_->is_canceled();
-  }
-  unique_ptr<PromiseInterface<T>> release() {
-    return std::move(promise_);
-  }
-
-  Promise() = default;
-  explicit Promise(unique_ptr<PromiseInterface<T>> promise) : promise_(std::move(promise)) {
-  }
-  Promise(Auto) {
-  }
-  Promise(SafePromise<T> &&other);
-  Promise &operator=(SafePromise<T> &&other);
-  template <class F, std::enable_if_t<!std::is_same<std::decay_t<F>, Promise>::value, int> = 0>
-  Promise(F &&f) : promise_(detail::promise_interface_ptr<T>(std::forward<F>(f))) {
-  }
-
-  explicit operator bool() const noexcept {
-    return static_cast<bool>(promise_);
-  }
-
- private:
-  unique_ptr<PromiseInterface<T>> promise_;
-};
-
-template <class T = Unit>
-class SafePromise {
- public:
-  SafePromise(Promise<T> promise, Result<T> result) : promise_(std::move(promise)), result_(std::move(result)) {
-  }
-  SafePromise(const SafePromise &) = delete;
-  SafePromise &operator=(const SafePromise &) = delete;
-  SafePromise(SafePromise &&) = default;
-  SafePromise &operator=(SafePromise &&) = default;
-  ~SafePromise() {
-    if (promise_) {
-      promise_.set_result(std::move(result_));
-    }
-  }
-  Promise<T> release() {
-    return std::move(promise_);
-  }
-
- private:
-  Promise<T> promise_;
-  Result<T> result_;
-};
-
-template <class T>
-Promise<T>::Promise(SafePromise<T> &&other) : Promise(other.release()) {
-}
-
-template <class T>
-Promise<T> &Promise<T>::operator=(SafePromise<T> &&other) {
-  *this = other.release();
-  return *this;
-}
-
-namespace detail {
-template <class PromiseT>
-class CancellablePromise final : public PromiseT {
- public:
-  template <class... ArgsT>
-  CancellablePromise(CancellationToken cancellation_token, ArgsT &&...args)
-      : PromiseT(std::forward<ArgsT>(args)...), cancellation_token_(std::move(cancellation_token)) {
-  }
-  bool is_cancellable() const final {
-    return true;
-  }
-  bool is_canceled() const final {
-    return static_cast<bool>(cancellation_token_);
-  }
-
- private:
-  CancellationToken cancellation_token_;
-};
-
-template <class... ArgsT>
-class JoinPromise final : public PromiseInterface<Unit> {
- public:
-  explicit JoinPromise(ArgsT &&...arg) : promises_(std::forward<ArgsT>(arg)...) {
-  }
-  void set_value(Unit &&) final {
-    tuple_for_each(promises_, [](auto &promise) { promise.set_value(Unit()); });
-  }
-  void set_error(Status &&error) final {
-    tuple_for_each(promises_, [&error](auto &promise) { promise.set_error(error.clone()); });
-  }
-
- private:
-  std::tuple<std::decay_t<ArgsT>...> promises_;
-};
-}  // namespace detail
-
-class PromiseCreator {
- public:
-  template <class OkT, class ArgT = detail::drop_result_t<detail::get_arg_t<OkT>>>
-  static Promise<ArgT> lambda(OkT &&ok) {
-    return Promise<ArgT>(td::make_unique<detail::LambdaPromise<ArgT, std::decay_t<OkT>>>(std::forward<OkT>(ok)));
-  }
-
-  template <class OkT, class ArgT = detail::drop_result_t<detail::get_arg_t<OkT>>>
-  static auto cancellable_lambda(CancellationToken cancellation_token, OkT &&ok) {
-    return Promise<ArgT>(td::make_unique<detail::CancellablePromise<detail::LambdaPromise<ArgT, std::decay_t<OkT>>>>(
-        std::move(cancellation_token), std::forward<OkT>(ok)));
-  }
-
-  template <class... ArgsT>
-  static Promise<> join(ArgsT &&...args) {
-    return Promise<>(td::make_unique<detail::JoinPromise<ArgsT...>>(std::forward<ArgsT>(args)...));
-  }
-};
-
-inline void set_promises(vector<Promise<Unit>> &promises) {
-  auto moved_promises = std::move(promises);
-  promises.clear();
-
-  for (auto &promise : moved_promises) {
-    promise.set_value(Unit());
-  }
-}
-
-template <class T>
-void fail_promises(vector<Promise<T>> &promises, Status &&error) {
-  CHECK(error.is_error());
-  auto moved_promises = std::move(promises);
-  promises.clear();
-
-  auto size = moved_promises.size();
-  if (size == 0) {
-    return;
-  }
-  size--;
-  for (size_t i = 0; i < size; i++) {
-    auto &promise = moved_promises[i];
-    if (promise) {
-      promise.set_error(error.clone());
-    }
-  }
-  moved_promises[size].set_error(std::move(error));
-}
-
-template <class T>
-void fail_promise_map(T &promise_map, Status &&error) {
-  while (!promise_map.empty()) {
-    auto it = promise_map.begin();
-    auto promises = std::move(it->second);
-    promise_map.erase(it);
-    fail_promises(promises, error.clone());
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Random.cpp b/third-party/td/td/tdutils/td/utils/Random.cpp
deleted file mode 100644
index d83ce337ec..0000000000
--- a/third-party/td/td/tdutils/td/utils/Random.cpp
+++ /dev/null
@@ -1,203 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/Random.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/port/thread_local.h"
-
-#if TD_HAVE_OPENSSL
-#include <openssl/rand.h>
-#endif
-
-#include <atomic>
-#include <cstring>
-#include <limits>
-#include <random>
-
-namespace td {
-
-#if TD_HAVE_OPENSSL
-
-namespace {
-std::atomic<int64> random_seed_generation{0};
-}  // namespace
-
-void Random::secure_bytes(MutableSlice dest) {
-  Random::secure_bytes(dest.ubegin(), dest.size());
-}
-
-void Random::secure_bytes(unsigned char *ptr, size_t size) {
-  constexpr size_t BUF_SIZE = 512;
-  static TD_THREAD_LOCAL unsigned char *buf;  // static zero-initialized
-  static TD_THREAD_LOCAL size_t buf_pos;
-  static TD_THREAD_LOCAL int64 generation;
-  if (init_thread_local<unsigned char[]>(buf, BUF_SIZE)) {
-    buf_pos = BUF_SIZE;
-    generation = 0;
-  }
-  if (ptr == nullptr) {
-    MutableSlice(buf, BUF_SIZE).fill_zero_secure();
-    buf_pos = BUF_SIZE;
-    return;
-  }
-  if (generation != random_seed_generation.load(std::memory_order_relaxed)) {
-    generation = random_seed_generation.load(std::memory_order_acquire);
-    buf_pos = BUF_SIZE;
-  }
-
-  auto ready = min(size, BUF_SIZE - buf_pos);
-  if (ready != 0) {
-    std::memcpy(ptr, buf + buf_pos, ready);
-    buf_pos += ready;
-    ptr += ready;
-    size -= ready;
-    if (size == 0) {
-      return;
-    }
-  }
-  if (size < BUF_SIZE) {
-    int err = RAND_bytes(buf, static_cast<int>(BUF_SIZE));
-    // TODO: it CAN fail
-    LOG_IF(FATAL, err != 1);
-    buf_pos = size;
-    std::memcpy(ptr, buf, size);
-    return;
-  }
-
-  CHECK(size <= static_cast<size_t>(std::numeric_limits<int>::max()));
-  int err = RAND_bytes(ptr, static_cast<int>(size));
-  // TODO: it CAN fail
-  LOG_IF(FATAL, err != 1);
-}
-
-int32 Random::secure_int32() {
-  int32 res = 0;
-  secure_bytes(reinterpret_cast<unsigned char *>(&res), sizeof(int32));
-  return res;
-}
-
-int64 Random::secure_int64() {
-  int64 res = 0;
-  secure_bytes(reinterpret_cast<unsigned char *>(&res), sizeof(int64));
-  return res;
-}
-
-uint32 Random::secure_uint32() {
-  uint32 res = 0;
-  secure_bytes(reinterpret_cast<unsigned char *>(&res), sizeof(uint32));
-  return res;
-}
-
-uint64 Random::secure_uint64() {
-  uint64 res = 0;
-  secure_bytes(reinterpret_cast<unsigned char *>(&res), sizeof(uint64));
-  return res;
-}
-
-void Random::add_seed(Slice bytes, double entropy) {
-  RAND_add(bytes.data(), static_cast<int>(bytes.size()), entropy);
-  random_seed_generation++;
-}
-
-void Random::secure_cleanup() {
-  Random::secure_bytes(nullptr, 0);
-}
-#endif
-
-static unsigned int rand_device_helper() {
-  static TD_THREAD_LOCAL std::random_device *rd;
-  init_thread_local<std::random_device>(rd);
-  return (*rd)();
-}
-
-uint32 Random::fast_uint32() {
-  static TD_THREAD_LOCAL std::mt19937 *gen;
-  if (!gen) {
-    auto &rg = rand_device_helper;
-    std::seed_seq seq{rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg()};
-    init_thread_local<std::mt19937>(gen, seq);
-  }
-  return static_cast<uint32>((*gen)());
-}
-
-uint64 Random::fast_uint64() {
-  static TD_THREAD_LOCAL std::mt19937_64 *gen;
-  if (!gen) {
-    auto &rg = rand_device_helper;
-    std::seed_seq seq{rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg(), rg()};
-    init_thread_local<std::mt19937_64>(gen, seq);
-  }
-  return static_cast<uint64>((*gen)());
-}
-
-int Random::fast(int min_value, int max_value) {
-  if (min_value == std::numeric_limits<int>::min() && max_value == std::numeric_limits<int>::max()) {
-    // to prevent integer overflow and division by zero
-    min_value++;
-  }
-  DCHECK(min_value <= max_value);
-  return static_cast<int>(min_value + fast_uint32() % (max_value - min_value + 1));  // TODO signed_cast
-}
-
-double Random::fast(double min_value, double max_value) {
-  DCHECK(min_value <= max_value);
-  return min_value + fast_uint32() * 1.0 / std::numeric_limits<uint32>::max() * (max_value - min_value);
-}
-
-bool Random::fast_bool() {
-  return (fast_uint32() & 1) != 0;
-}
-
-Random::Xorshift128plus::Xorshift128plus(uint64 seed) {
-  auto next = [&] {
-    // splitmix64
-    seed += static_cast<uint64>(0x9E3779B97F4A7C15ull);
-    uint64 z = seed;
-    z = (z ^ (z >> 30)) * static_cast<uint64>(0xBF58476D1CE4E5B9ull);
-    z = (z ^ (z >> 27)) * static_cast<uint64>(0x94D049BB133111EBull);
-    return z ^ (z >> 31);
-  };
-  seed_[0] = next();
-  seed_[1] = next();
-}
-
-Random::Xorshift128plus::Xorshift128plus(uint64 seed_a, uint64 seed_b) {
-  seed_[0] = seed_a;
-  seed_[1] = seed_b;
-}
-
-uint64 Random::Xorshift128plus::operator()() {
-  uint64 x = seed_[0];
-  const uint64 y = seed_[1];
-  seed_[0] = y;
-  x ^= x << 23;
-  seed_[1] = x ^ y ^ (x >> 17) ^ (y >> 26);
-  return seed_[1] + y;
-}
-
-int Random::Xorshift128plus::fast(int min_value, int max_value) {
-  return static_cast<int>((*this)() % (max_value - min_value + 1) + min_value);
-}
-int64 Random::Xorshift128plus::fast64(int64 min_value, int64 max_value) {
-  return static_cast<int64>((*this)() % (max_value - min_value + 1) + min_value);
-}
-
-void Random::Xorshift128plus::bytes(MutableSlice dest) {
-  int cnt = 0;
-  uint64 buf = 0;
-  for (auto &c : dest) {
-    if (cnt == 0) {
-      buf = operator()();
-      cnt = 8;
-    }
-    cnt--;
-    c = static_cast<char>(buf & 255);
-    buf >>= 8;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Random.h b/third-party/td/td/tdutils/td/utils/Random.h
deleted file mode 100644
index 261e6e886a..0000000000
--- a/third-party/td/td/tdutils/td/utils/Random.h
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-#include <utility>
-
-namespace td {
-
-class Random {
- public:
-#if TD_HAVE_OPENSSL
-  static void secure_bytes(MutableSlice dest);
-  static void secure_bytes(unsigned char *ptr, size_t size);
-  static int32 secure_int32();
-  static int64 secure_int64();
-  static uint32 secure_uint32();
-  static uint64 secure_uint64();
-
-  // works only for current thread
-  static void add_seed(Slice bytes, double entropy = 0);
-  static void secure_cleanup();
-
-  template <class T>
-  static void shuffle(vector<T> &v) {
-    for (size_t i = 1; i < v.size(); i++) {
-      auto pos = static_cast<size_t>(secure_int32()) % (i + 1);
-      using std::swap;
-      swap(v[i], v[pos]);
-    }
-  }
-#endif
-
-  static uint32 fast_uint32();
-  static uint64 fast_uint64();
-
-  // distribution is not uniform, min_value and max_value are included
-  static int fast(int min_value, int max_value);
-  static double fast(double min_value, double max_value);
-  static bool fast_bool();
-
-  class Fast {
-   public:
-    uint64 operator()() {
-      return fast_uint64();
-    }
-  };
-  class Xorshift128plus {
-   public:
-    explicit Xorshift128plus(uint64 seed);
-    Xorshift128plus(uint64 seed_a, uint64 seed_b);
-    uint64 operator()();
-    int fast(int min_value, int max_value);
-    int64 fast64(int64 min_value, int64 max_value);
-    void bytes(MutableSlice dest);
-
-   private:
-    uint64 seed_[2];
-  };
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ScopeGuard.h b/third-party/td/td/tdutils/td/utils/ScopeGuard.h
deleted file mode 100644
index e1d2fd6a2b..0000000000
--- a/third-party/td/td/tdutils/td/utils/ScopeGuard.h
+++ /dev/null
@@ -1,77 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <cstdlib>
-#include <memory>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-class Guard {
- public:
-  Guard() = default;
-  Guard(const Guard &) = delete;
-  Guard &operator=(const Guard &) = delete;
-  Guard(Guard &&) = default;
-  Guard &operator=(Guard &&) = default;
-  virtual ~Guard() = default;
-  virtual void dismiss() {
-    std::abort();
-  }
-};
-
-template <class FunctionT>
-class LambdaGuard final : public Guard {
- public:
-  explicit LambdaGuard(const FunctionT &func) : func_(func) {
-  }
-  explicit LambdaGuard(FunctionT &&func) : func_(std::move(func)) {
-  }
-  LambdaGuard(const LambdaGuard &) = delete;
-  LambdaGuard &operator=(const LambdaGuard &) = delete;
-  LambdaGuard(LambdaGuard &&other) : func_(std::move(other.func_)), dismissed_(other.dismissed_) {
-    other.dismissed_ = true;
-  }
-  LambdaGuard &operator=(LambdaGuard &&) = delete;
-
-  void dismiss() final {
-    dismissed_ = true;
-  }
-
-  ~LambdaGuard() final {
-    if (!dismissed_) {
-      func_();
-    }
-  }
-
- private:
-  FunctionT func_;
-  bool dismissed_ = false;
-};
-
-template <class F>
-unique_ptr<Guard> create_lambda_guard(F &&f) {
-  return make_unique<LambdaGuard<F>>(std::forward<F>(f));
-}
-template <class F>
-std::shared_ptr<Guard> create_shared_lambda_guard(F &&f) {
-  return std::make_shared<LambdaGuard<F>>(std::forward<F>(f));
-}
-
-enum class ScopeExit {};
-template <class FunctionT>
-auto operator+(ScopeExit, FunctionT &&func) {
-  return LambdaGuard<std::decay_t<FunctionT>>(std::forward<FunctionT>(func));
-}
-
-}  // namespace td
-
-#define SCOPE_EXIT auto TD_CONCAT(SCOPE_EXIT_VAR_, __LINE__) = ::td::ScopeExit() + [&]
diff --git a/third-party/td/td/tdutils/td/utils/SetNode.h b/third-party/td/td/tdutils/td/utils/SetNode.h
deleted file mode 100644
index 167a18c876..0000000000
--- a/third-party/td/td/tdutils/td/utils/SetNode.h
+++ /dev/null
@@ -1,129 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/HashTableUtils.h"
-
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-template <class KeyT, class EqT, class Enable = void>
-struct SetNode {
-  using public_key_type = KeyT;
-  using public_type = const KeyT;
-  using second_type = KeyT;  // TODO: remove second_type?
-
-  KeyT first;
-
-  const KeyT &key() const {
-    return first;
-  }
-
-  const KeyT &get_public() {
-    return first;
-  }
-
-  SetNode() : first() {
-  }
-  explicit SetNode(KeyT key) : first(std::move(key)) {
-  }
-  SetNode(const SetNode &) = delete;
-  SetNode &operator=(const SetNode &) = delete;
-  SetNode(SetNode &&other) noexcept {
-    *this = std::move(other);
-  }
-  void operator=(SetNode &&other) noexcept {
-    DCHECK(empty());
-    DCHECK(!other.empty());
-    first = std::move(other.first);
-    other.first = KeyT();
-  }
-  ~SetNode() = default;
-
-  void copy_from(const SetNode &other) {
-    DCHECK(empty());
-    first = other.first;
-    DCHECK(!empty());
-  }
-
-  bool empty() const {
-    return is_hash_table_key_empty<EqT>(first);
-  }
-
-  void clear() {
-    first = KeyT();
-    DCHECK(empty());
-  }
-
-  void emplace(KeyT key) {
-    first = std::move(key);
-  }
-};
-
-template <class KeyT, class EqT>
-struct SetNode<KeyT, EqT, typename std::enable_if_t<(sizeof(KeyT) > 28 * sizeof(void *))>> {
-  struct Impl {
-    using second_type = KeyT;
-
-    KeyT first;
-
-    template <class InputKeyT>
-    explicit Impl(InputKeyT &&key) : first(std::forward<InputKeyT>(key)) {
-      DCHECK(!is_hash_table_key_empty<EqT>(first));
-    }
-    Impl(const Impl &) = delete;
-    Impl &operator=(const Impl &) = delete;
-    Impl(Impl &&) = delete;
-    Impl &operator=(Impl &&) = delete;
-  };
-
-  using public_key_type = KeyT;
-  using public_type = const KeyT;
-  using second_type = KeyT;  // TODO: remove second_type?
-
-  unique_ptr<Impl> impl_;
-
-  const KeyT &key() const {
-    DCHECK(!empty());
-    return impl_->first;
-  }
-
-  const KeyT &get_public() {
-    DCHECK(!empty());
-    return impl_->first;
-  }
-
-  SetNode() : impl_() {
-  }
-  explicit SetNode(KeyT key) : impl_(td::make_unique<Impl>(std::move(key))) {
-  }
-
-  void copy_from(const SetNode &other) {
-    DCHECK(empty());
-    impl_ = td::make_unique<Impl>(other.impl_->first);
-    DCHECK(!empty());
-  }
-
-  bool empty() const {
-    return impl_ == nullptr;
-  }
-
-  void clear() {
-    DCHECK(!empty());
-    impl_ = nullptr;
-  }
-
-  void emplace(KeyT key) {
-    DCHECK(empty());
-    impl_ = td::make_unique<Impl>(std::move(key));
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/SharedObjectPool.h b/third-party/td/td/tdutils/td/utils/SharedObjectPool.h
deleted file mode 100644
index 25e13f1ebd..0000000000
--- a/third-party/td/td/tdutils/td/utils/SharedObjectPool.h
+++ /dev/null
@@ -1,288 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/MpscLinkQueue.h"
-
-#include <atomic>
-#include <memory>
-#include <new>
-#include <utility>
-
-namespace td {
-
-namespace detail {
-class AtomicRefCnt {
- public:
-  explicit AtomicRefCnt(uint64 cnt) : cnt_(cnt) {
-  }
-  void inc() {
-    cnt_.fetch_add(1, std::memory_order_relaxed);
-  }
-  bool dec() {
-    return cnt_.fetch_sub(1, std::memory_order_acq_rel) == 1;
-  }
-  uint64 value() const {
-    return cnt_.load(std::memory_order_relaxed);
-  }
-
- private:
-  std::atomic<uint64> cnt_{0};
-};
-
-template <class DataT, class DeleterT>
-class SharedPtrRaw
-    : public DeleterT
-    , private MpscLinkQueueImpl::Node {
- public:
-  explicit SharedPtrRaw(DeleterT deleter) : DeleterT(std::move(deleter)), ref_cnt_{0}, option_magic_(Magic) {
-  }
-
-  ~SharedPtrRaw() {
-    CHECK(use_cnt() == 0);
-    CHECK(option_magic_ == Magic);
-  }
-  template <class... ArgsT>
-  void init_data(ArgsT &&...args) {
-    new (&option_data_) DataT(std::forward<ArgsT>(args)...);
-  }
-  void destroy_data() {
-    option_data_.~DataT();
-    option_magic_ = Magic;
-  }
-  uint64 use_cnt() const {
-    return ref_cnt_.value();
-  }
-  void inc() {
-    ref_cnt_.inc();
-  }
-  bool dec() {
-    return ref_cnt_.dec();
-  }
-  DataT &data() {
-    return option_data_;
-  }
-  static SharedPtrRaw *from_mpsc_link_queue_node(MpscLinkQueueImpl::Node *node) {
-    return static_cast<SharedPtrRaw<DataT, DeleterT> *>(node);
-  }
-  MpscLinkQueueImpl::Node *to_mpsc_link_queue_node() {
-    return static_cast<MpscLinkQueueImpl::Node *>(this);
-  }
-
- private:
-  AtomicRefCnt ref_cnt_;
-  enum { Magic = 0x732817a2 };
-  union {
-    DataT option_data_;
-    uint32 option_magic_;
-  };
-};
-
-template <class T, class DeleterT = std::default_delete<T>>
-class SharedPtr {
- public:
-  using Raw = detail::SharedPtrRaw<T, DeleterT>;
-  struct acquire_t {};
-  SharedPtr() = default;
-  ~SharedPtr() {
-    if (!raw_) {
-      return;
-    }
-    reset();
-  }
-  explicit SharedPtr(Raw *raw) : raw_(raw) {
-    if (raw_) {
-      raw_->inc();
-    }
-  }
-  SharedPtr(acquire_t, Raw *raw) : raw_(raw) {
-  }
-  SharedPtr(const SharedPtr &other) : SharedPtr(other.raw_) {
-  }
-  SharedPtr &operator=(const SharedPtr &other) {
-    if (this == &other) {
-      return *this;
-    }
-    if (other.raw_) {
-      other.raw_->inc();
-    }
-    reset(other.raw_);
-    return *this;
-  }
-  SharedPtr(SharedPtr &&other) noexcept : raw_(other.raw_) {
-    other.raw_ = nullptr;
-  }
-  SharedPtr &operator=(SharedPtr &&other) noexcept {
-    reset(other.raw_);
-    other.raw_ = nullptr;
-    return *this;
-  }
-  bool empty() const noexcept {
-    return raw_ == nullptr;
-  }
-  explicit operator bool() const noexcept {
-    return !empty();
-  }
-  uint64 use_cnt() const {
-    if (!raw_) {
-      return 0;
-    }
-    return raw_->use_cnt();
-  }
-  T &operator*() const {
-    return raw_->data();
-  }
-  T *operator->() const {
-    return &raw_->data();
-  }
-
-  Raw *release() {
-    auto res = raw_;
-    raw_ = nullptr;
-    return res;
-  }
-
-  void reset(Raw *new_raw = nullptr) {
-    if (raw_ && raw_->dec()) {
-      raw_->destroy_data();
-      auto deleter = std::move(static_cast<DeleterT &>(*raw_));
-      deleter(raw_);
-    }
-    raw_ = new_raw;
-  }
-
-  template <class... ArgsT>
-  static SharedPtr<T, DeleterT> create(ArgsT &&...args) {
-    auto raw = make_unique<Raw>(DeleterT());
-    raw->init_data(std::forward<ArgsT>(args)...);
-    return SharedPtr<T, DeleterT>(raw.release());
-  }
-  template <class D, class... ArgsT>
-  static SharedPtr<T, DeleterT> create_with_deleter(D &&d, ArgsT &&...args) {
-    auto raw = make_unique<Raw>(std::forward<D>(d));
-    raw->init_data(std::forward<ArgsT>(args)...);
-    return SharedPtr<T, DeleterT>(raw.release());
-  }
-  bool operator==(const SharedPtr<T, DeleterT> &other) const {
-    return raw_ == other.raw_;
-  }
-
- private:
-  Raw *raw_{nullptr};
-};
-
-}  // namespace detail
-
-template <class DataT>
-class SharedObjectPool {
-  class Deleter;
-
- public:
-  using Ptr = detail::SharedPtr<DataT, Deleter>;
-
-  SharedObjectPool() = default;
-  SharedObjectPool(const SharedObjectPool &) = delete;
-  SharedObjectPool &operator=(const SharedObjectPool &) = delete;
-  SharedObjectPool(SharedObjectPool &&) = delete;
-  SharedObjectPool &operator=(SharedObjectPool &&) = delete;
-  ~SharedObjectPool() {
-    free_queue_.pop_all(free_queue_reader_);
-    size_t free_cnt = 0;
-    while (free_queue_reader_.read()) {
-      free_cnt++;
-    }
-    LOG_CHECK(free_cnt == allocated_.size()) << free_cnt << " " << allocated_.size();
-  }
-
-  template <class... ArgsT>
-  Ptr alloc(ArgsT &&...args) {
-    auto *raw = alloc_raw();
-    raw->init_data(std::forward<ArgsT>(args)...);
-    return Ptr(raw);
-  }
-  size_t total_size() const {
-    return allocated_.size();
-  }
-  uint64 calc_free_size() {
-    free_queue_.pop_all(free_queue_reader_);
-    return free_queue_reader_.calc_size();
-  }
-
-  // non-thread-safe
-  template <class F>
-  void for_each(F &&f) {
-    for (auto &raw : allocated_) {
-      if (raw->use_cnt() > 0) {
-        f(raw->data());
-      }
-    }
-  }
-
- private:
-  using Raw = typename Ptr::Raw;
-  Raw *alloc_raw() {
-    free_queue_.pop_all(free_queue_reader_);
-    auto *raw = free_queue_reader_.read().get();
-    if (raw) {
-      return raw;
-    }
-    allocated_.push_back(make_unique<Raw>(deleter()));
-    return allocated_.back().get();
-  }
-
-  void free_raw(Raw *raw) {
-    free_queue_.push(Node{raw});
-  }
-
-  class Node {
-   public:
-    Node() = default;
-    explicit Node(Raw *raw) : raw_(raw) {
-    }
-
-    MpscLinkQueueImpl::Node *to_mpsc_link_queue_node() {
-      return raw_->to_mpsc_link_queue_node();
-    }
-    static Node from_mpsc_link_queue_node(MpscLinkQueueImpl::Node *node) {
-      return Node{Raw::from_mpsc_link_queue_node(node)};
-    }
-    Raw *get() const {
-      return raw_;
-    }
-    explicit operator bool() const noexcept {
-      return raw_ != nullptr;
-    }
-
-   private:
-    Raw *raw_{nullptr};
-  };
-
-  class Deleter {
-   public:
-    explicit Deleter(SharedObjectPool<DataT> *pool) : pool_(pool) {
-    }
-    void operator()(Raw *raw) {
-      pool_->free_raw(raw);
-    };
-
-   private:
-    SharedObjectPool<DataT> *pool_;
-  };
-  friend class Deleter;
-
-  Deleter deleter() {
-    return Deleter(this);
-  }
-
-  std::vector<unique_ptr<Raw>> allocated_;
-  MpscLinkQueue<Node> free_queue_;
-  typename MpscLinkQueue<Node>::Reader free_queue_reader_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/SharedSlice.cpp b/third-party/td/td/tdutils/td/utils/SharedSlice.cpp
deleted file mode 100644
index a009fc17b3..0000000000
--- a/third-party/td/td/tdutils/td/utils/SharedSlice.cpp
+++ /dev/null
@@ -1,17 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/SharedSlice.h"
-
-#include "td/utils/buffer.h"
-
-namespace td {
-
-BufferSlice SharedSlice::clone_as_buffer_slice() const {
-  return BufferSlice{as_slice()};
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/SharedSlice.h b/third-party/td/td/tdutils/td/utils/SharedSlice.h
deleted file mode 100644
index 361ea4d1ed..0000000000
--- a/third-party/td/td/tdutils/td/utils/SharedSlice.h
+++ /dev/null
@@ -1,382 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-#include <atomic>
-#include <memory>
-#include <new>
-#include <type_traits>
-
-namespace td {
-
-namespace detail {
-struct SharedSliceHeader {
-  explicit SharedSliceHeader(size_t size) : size_{size} {
-  }
-
-  void inc() {
-    refcnt_.fetch_add(1, std::memory_order_relaxed);
-  }
-
-  bool dec() {
-    return refcnt_.fetch_sub(1, std::memory_order_acq_rel) == 1;
-  }
-
-  bool is_unique() const {
-    // NB: race if std::memory_order_relaxed is used
-    // reader may see a change by a new writer
-    return refcnt_.load(std::memory_order_acquire) == 1;
-  }
-
-  size_t size() const {
-    return size_;
-  }
-
- private:
-  std::atomic<uint64> refcnt_{1};
-  size_t size_;
-};
-
-struct UniqueSliceHeader {
-  explicit UniqueSliceHeader(size_t size) : size_{size} {
-  }
-
-  void inc() {
-  }
-
-  bool dec() {
-    return true;
-  }
-
-  bool is_unique() const {
-    return true;
-  }
-
-  size_t size() const {
-    return size_;
-  }
-
- private:
-  size_t size_;
-};
-
-template <class HeaderT, bool zero_on_destruct = false>
-class UnsafeSharedSlice {
- public:
-  UnsafeSharedSlice() = default;
-  UnsafeSharedSlice clone() const {
-    if (is_null()) {
-      return UnsafeSharedSlice();
-    }
-    header()->inc();
-    return UnsafeSharedSlice(ptr_.get());
-  }
-
-  bool is_null() const {
-    return !ptr_;
-  }
-
-  bool is_unique() const {
-    if (is_null()) {
-      return true;
-    }
-    return header()->is_unique();
-  }
-
-  MutableSlice as_mutable_slice() {
-    if (is_null()) {
-      return MutableSlice();
-    }
-    return MutableSlice(ptr_.get() + sizeof(HeaderT), header()->size());
-  }
-
-  Slice as_slice() const {
-    if (is_null()) {
-      return Slice();
-    }
-    return Slice(ptr_.get() + sizeof(HeaderT), header()->size());
-  }
-
-  size_t size() const {
-    if (is_null()) {
-      return 0;
-    }
-    return header()->size();
-  }
-
-  static UnsafeSharedSlice create(size_t size) {
-    static_assert(std::is_standard_layout<HeaderT>::value, "HeaderT must have statdard layout");
-    auto ptr = std::make_unique<char[]>(sizeof(HeaderT) + size);
-    auto header_ptr = new (ptr.get()) HeaderT(size);
-    CHECK(header_ptr == reinterpret_cast<HeaderT *>(ptr.get()));
-
-    return UnsafeSharedSlice(std::move(ptr));
-  }
-
-  static UnsafeSharedSlice create(Slice slice) {
-    auto res = create(slice.size());
-    res.as_mutable_slice().copy_from(slice);
-    return res;
-  }
-
-  void clear() {
-    ptr_.reset();
-  }
-
- private:
-  explicit UnsafeSharedSlice(char *ptr) : ptr_(ptr) {
-  }
-  explicit UnsafeSharedSlice(std::unique_ptr<char[]> from) : ptr_(from.release()) {
-  }
-
-  HeaderT *header() const {
-    return reinterpret_cast<HeaderT *>(ptr_.get());
-  }
-
-  struct SharedSliceDestructor {
-    void operator()(char *ptr) {
-      auto header = reinterpret_cast<HeaderT *>(ptr);
-      if (header->dec()) {
-        if (zero_on_destruct) {
-          MutableSlice(ptr, sizeof(HeaderT) + header->size()).fill_zero_secure();
-        }
-        std::default_delete<char[]>()(ptr);
-      }
-    }
-  };
-
-  std::unique_ptr<char[], SharedSliceDestructor> ptr_;
-};
-}  // namespace detail
-
-class BufferSlice;
-
-class UniqueSharedSlice;
-
-class SharedSlice {
-  using Impl = detail::UnsafeSharedSlice<detail::SharedSliceHeader>;
-
- public:
-  SharedSlice() = default;
-
-  explicit SharedSlice(Slice slice) : impl_(Impl::create(slice)) {
-  }
-
-  explicit SharedSlice(UniqueSharedSlice from);
-
-  SharedSlice(const char *ptr, size_t size) : SharedSlice(Slice(ptr, size)) {
-  }
-
-  SharedSlice clone() const {
-    return SharedSlice(impl_.clone());
-  }
-
-  Slice as_slice() const {
-    return impl_.as_slice();
-  }
-
-  BufferSlice clone_as_buffer_slice() const;
-
-  operator Slice() const {
-    return as_slice();
-  }
-
-  // like in std::string
-  const char *data() const {
-    return as_slice().data();
-  }
-
-  char operator[](size_t at) const {
-    return as_slice()[at];
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
-  size_t size() const {
-    return impl_.size();
-  }
-
-  // like in std::string
-  size_t length() const {
-    return size();
-  }
-
-  void clear() {
-    impl_.clear();
-  }
-
- private:
-  friend class UniqueSharedSlice;
-  explicit SharedSlice(Impl impl) : impl_(std::move(impl)) {
-  }
-  Impl impl_;
-};
-
-class UniqueSharedSlice {
-  using Impl = detail::UnsafeSharedSlice<detail::SharedSliceHeader>;
-
- public:
-  UniqueSharedSlice() = default;
-
-  explicit UniqueSharedSlice(size_t size) : impl_(Impl::create(size)) {
-  }
-  explicit UniqueSharedSlice(Slice slice) : impl_(Impl::create(slice)) {
-  }
-
-  UniqueSharedSlice(const char *ptr, size_t size) : UniqueSharedSlice(Slice(ptr, size)) {
-  }
-  explicit UniqueSharedSlice(SharedSlice from) : impl_() {
-    if (from.impl_.is_unique()) {
-      impl_ = std::move(from.impl_);
-    } else {
-      impl_ = Impl::create(from.as_slice());
-    }
-  }
-
-  UniqueSharedSlice copy() const {
-    return UniqueSharedSlice(as_slice());
-  }
-
-  Slice as_slice() const {
-    return impl_.as_slice();
-  }
-
-  MutableSlice as_mutable_slice() {
-    return impl_.as_mutable_slice();
-  }
-
-  operator Slice() const {
-    return as_slice();
-  }
-
-  // like in std::string
-  char *data() {
-    return as_mutable_slice().data();
-  }
-  const char *data() const {
-    return as_slice().data();
-  }
-  char operator[](size_t at) const {
-    return as_slice()[at];
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
-  size_t size() const {
-    return impl_.size();
-  }
-
-  // like in std::string
-  size_t length() const {
-    return size();
-  }
-
-  void clear() {
-    impl_.clear();
-  }
-
- private:
-  friend class SharedSlice;
-  explicit UniqueSharedSlice(Impl impl) : impl_(std::move(impl)) {
-  }
-  Impl impl_;
-};
-
-inline SharedSlice::SharedSlice(UniqueSharedSlice from) : impl_(std::move(from.impl_)) {
-}
-
-template <bool zero_on_destruct>
-class UniqueSliceImpl {
-  using Impl = detail::UnsafeSharedSlice<detail::UniqueSliceHeader, zero_on_destruct>;
-
- public:
-  UniqueSliceImpl() = default;
-
-  explicit UniqueSliceImpl(size_t size) : impl_(Impl::create(size)) {
-  }
-  UniqueSliceImpl(size_t size, char c) : impl_(Impl::create(size)) {
-    as_mutable_slice().fill(c);
-  }
-  explicit UniqueSliceImpl(Slice slice) : impl_(Impl::create(slice)) {
-  }
-
-  UniqueSliceImpl(const char *ptr, size_t size) : UniqueSliceImpl(Slice(ptr, size)) {
-  }
-
-  UniqueSliceImpl copy() const {
-    return UniqueSliceImpl(as_slice());
-  }
-
-  Slice as_slice() const {
-    return impl_.as_slice();
-  }
-
-  MutableSlice as_mutable_slice() {
-    return impl_.as_mutable_slice();
-  }
-
-  operator Slice() const {
-    return as_slice();
-  }
-
-  // like in std::string
-  char *data() {
-    return as_mutable_slice().data();
-  }
-  const char *data() const {
-    return as_slice().data();
-  }
-  char operator[](size_t at) const {
-    return as_slice()[at];
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
-  size_t size() const {
-    return impl_.size();
-  }
-
-  // like in std::string
-  size_t length() const {
-    return size();
-  }
-
-  void clear() {
-    impl_.clear();
-  }
-
- private:
-  explicit UniqueSliceImpl(Impl impl) : impl_(std::move(impl)) {
-  }
-  Impl impl_;
-};
-
-using UniqueSlice = UniqueSliceImpl<false>;
-using SecureString = UniqueSliceImpl<true>;
-
-inline MutableSlice as_mutable_slice(UniqueSharedSlice &unique_shared_slice) {
-  return unique_shared_slice.as_mutable_slice();
-}
-
-inline MutableSlice as_mutable_slice(UniqueSlice &unique_slice) {
-  return unique_slice.as_mutable_slice();
-}
-
-inline MutableSlice as_mutable_slice(SecureString &secure_string) {
-  return secure_string.as_mutable_slice();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Slice-decl.h b/third-party/td/td/tdutils/td/utils/Slice-decl.h
deleted file mode 100644
index acac8c91bd..0000000000
--- a/third-party/td/td/tdutils/td/utils/Slice-decl.h
+++ /dev/null
@@ -1,212 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <type_traits>
-
-namespace td {
-
-class Slice;
-
-class MutableSlice {
-  char *s_;
-  size_t len_;
-
-  struct private_tag {};
-
- public:
-  MutableSlice();
-  MutableSlice(char *s, size_t len);
-  MutableSlice(unsigned char *s, size_t len);
-  MutableSlice(string &s);
-  template <class T>
-  explicit MutableSlice(T s, std::enable_if_t<std::is_same<char *, T>::value, private_tag> = {});
-  MutableSlice(char *s, char *t);
-  MutableSlice(unsigned char *s, unsigned char *t);
-  template <size_t N>
-  constexpr MutableSlice(char (&)[N]) = delete;
-
-  bool empty() const;
-  size_t size() const;
-
-  MutableSlice &remove_prefix(size_t prefix_len);
-  MutableSlice &remove_suffix(size_t suffix_len);
-  MutableSlice &truncate(size_t size);
-
-  MutableSlice copy() const;
-
-  char *data() const;
-  char *begin() const;
-  unsigned char *ubegin() const;
-  char *end() const;
-  unsigned char *uend() const;
-
-  string str() const;
-  MutableSlice substr(size_t from) const;
-  MutableSlice substr(size_t from, size_t size) const;
-  size_t find(char c) const;
-  size_t rfind(char c) const;
-  void fill(char c);
-  void fill_zero();
-  void fill_zero_secure();
-
-  void copy_from(Slice from);
-
-  char &back();
-  char &operator[](size_t i);
-
-  static const size_t npos = static_cast<size_t>(-1);
-};
-
-class Slice {
-  const char *s_;
-  size_t len_;
-
-  struct private_tag {};
-
- public:
-  Slice();
-  Slice(const MutableSlice &other);
-  Slice(const char *s, size_t len);
-  Slice(const unsigned char *s, size_t len);
-  Slice(const string &s);
-  template <class T>
-  explicit Slice(T s, std::enable_if_t<std::is_same<char *, std::remove_const_t<T>>::value, private_tag> = {});
-  template <class T>
-  explicit Slice(T s, std::enable_if_t<std::is_same<const char *, std::remove_const_t<T>>::value, private_tag> = {});
-  Slice(const char *s, const char *t);
-  Slice(const unsigned char *s, const unsigned char *t);
-
-  template <size_t N>
-  constexpr Slice(char (&)[N]) = delete;
-
-  template <size_t N>
-  constexpr Slice(const char (&a)[N]) : s_(a), len_(N - 1) {
-  }
-
-  Slice &operator=(string &&) = delete;
-
-  template <size_t N>
-  constexpr Slice &operator=(char (&)[N]) = delete;
-
-  template <size_t N>
-  constexpr Slice &operator=(const char (&a)[N]) {
-    s_ = a;
-    len_ = N - 1;
-    return *this;
-  }
-
-  bool empty() const;
-  size_t size() const;
-
-  Slice &remove_prefix(size_t prefix_len);
-  Slice &remove_suffix(size_t suffix_len);
-  Slice &truncate(size_t size);
-
-  Slice copy() const;
-
-  const char *data() const;
-  const char *begin() const;
-  const unsigned char *ubegin() const;
-  const char *end() const;
-  const unsigned char *uend() const;
-
-  string str() const;
-  Slice substr(size_t from) const;
-  Slice substr(size_t from, size_t size) const;
-  size_t find(char c) const;
-  size_t rfind(char c) const;
-
-  char back() const;
-  char operator[](size_t i) const;
-
-  static const size_t npos = static_cast<size_t>(-1);
-};
-
-bool operator==(const Slice &a, const Slice &b);
-bool operator!=(const Slice &a, const Slice &b);
-bool operator<(const Slice &a, const Slice &b);
-
-class MutableCSlice : public MutableSlice {
-  struct private_tag {};
-
-  MutableSlice &remove_suffix(size_t suffix_len) = delete;
-  MutableSlice &truncate(size_t size) = delete;
-
- public:
-  MutableCSlice() = delete;
-  MutableCSlice(string &s) : MutableSlice(s) {
-  }
-  template <class T>
-  explicit MutableCSlice(T s, std::enable_if_t<std::is_same<char *, T>::value, private_tag> = {}) : MutableSlice(s) {
-  }
-  MutableCSlice(char *s, char *t);
-
-  template <size_t N>
-  constexpr MutableCSlice(char (&)[N]) = delete;
-
-  const char *c_str() const {
-    return begin();
-  }
-};
-
-class CSlice : public Slice {
-  struct private_tag {};
-
-  Slice &remove_suffix(size_t suffix_len) = delete;
-  Slice &truncate(size_t size) = delete;
-
- public:
-  explicit CSlice(const MutableSlice &other) : Slice(other) {
-  }
-  CSlice(const MutableCSlice &other) : Slice(other.begin(), other.size()) {
-  }
-  CSlice(const string &s) : Slice(s) {
-  }
-  template <class T>
-  explicit CSlice(T s, std::enable_if_t<std::is_same<char *, std::remove_const_t<T>>::value, private_tag> = {})
-      : Slice(s) {
-  }
-  template <class T>
-  explicit CSlice(T s, std::enable_if_t<std::is_same<const char *, std::remove_const_t<T>>::value, private_tag> = {})
-      : Slice(s) {
-  }
-  CSlice(const char *s, const char *t);
-
-  template <size_t N>
-  constexpr CSlice(char (&)[N]) = delete;
-
-  template <size_t N>
-  constexpr CSlice(const char (&a)[N]) : Slice(a) {
-  }
-
-  CSlice() : CSlice("") {
-  }
-
-  CSlice &operator=(string &&) = delete;
-
-  template <size_t N>
-  constexpr CSlice &operator=(char (&)[N]) = delete;
-
-  template <size_t N>
-  constexpr CSlice &operator=(const char (&a)[N]) {
-    this->Slice::operator=(a);
-    return *this;
-  }
-
-  const char *c_str() const {
-    return begin();
-  }
-};
-
-struct SliceHash {
-  uint32 operator()(Slice slice) const;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Slice.cpp b/third-party/td/td/tdutils/td/utils/Slice.cpp
deleted file mode 100644
index 99bd118047..0000000000
--- a/third-party/td/td/tdutils/td/utils/Slice.cpp
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/Slice.h"
-
-#if TD_HAVE_OPENSSL
-#include <openssl/crypto.h>
-#endif
-
-namespace td {
-
-void MutableSlice::fill(char c) {
-  std::memset(data(), c, size());
-}
-
-void MutableSlice::fill_zero() {
-  fill('\0');
-}
-
-void MutableSlice::fill_zero_secure() {
-#if TD_HAVE_OPENSSL
-  OPENSSL_cleanse(begin(), size());
-#else
-  volatile char *ptr = begin();
-  for (size_t i = 0; i < size(); i++) {
-    ptr[i] = '\0';
-  }
-#endif
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Slice.h b/third-party/td/td/tdutils/td/utils/Slice.h
deleted file mode 100644
index 1e55c25615..0000000000
--- a/third-party/td/td/tdutils/td/utils/Slice.h
+++ /dev/null
@@ -1,323 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice-decl.h"
-
-#include <cstring>
-#include <type_traits>
-
-namespace td {
-
-inline MutableSlice::MutableSlice() : s_(const_cast<char *>("")), len_(0) {
-}
-
-inline MutableSlice::MutableSlice(char *s, size_t len) : s_(s), len_(len) {
-  CHECK(s_ != nullptr);
-}
-
-inline MutableSlice::MutableSlice(unsigned char *s, size_t len) : s_(reinterpret_cast<char *>(s)), len_(len) {
-  CHECK(s_ != nullptr);
-}
-
-inline MutableSlice::MutableSlice(string &s) : s_(&s[0]), len_(s.size()) {
-}
-
-template <class T>
-MutableSlice::MutableSlice(T s, std::enable_if_t<std::is_same<char *, T>::value, private_tag>) : s_(s) {
-  CHECK(s_ != nullptr);
-  len_ = std::strlen(s_);
-}
-
-inline MutableSlice::MutableSlice(char *s, char *t) : MutableSlice(s, t - s) {
-}
-
-inline MutableSlice::MutableSlice(unsigned char *s, unsigned char *t) : MutableSlice(s, t - s) {
-}
-
-inline size_t MutableSlice::size() const {
-  return len_;
-}
-
-inline MutableSlice &MutableSlice::remove_prefix(size_t prefix_len) {
-  CHECK(prefix_len <= len_);
-  s_ += prefix_len;
-  len_ -= prefix_len;
-  return *this;
-}
-inline MutableSlice &MutableSlice::remove_suffix(size_t suffix_len) {
-  CHECK(suffix_len <= len_);
-  len_ -= suffix_len;
-  return *this;
-}
-
-inline MutableSlice &MutableSlice::truncate(size_t size) {
-  if (len_ > size) {
-    len_ = size;
-  }
-  return *this;
-}
-
-inline MutableSlice MutableSlice::copy() const {
-  return *this;
-}
-
-inline bool MutableSlice::empty() const {
-  return len_ == 0;
-}
-
-inline char *MutableSlice::data() const {
-  return s_;
-}
-
-inline char *MutableSlice::begin() const {
-  return s_;
-}
-
-inline unsigned char *MutableSlice::ubegin() const {
-  return reinterpret_cast<unsigned char *>(s_);
-}
-
-inline char *MutableSlice::end() const {
-  return s_ + len_;
-}
-
-inline unsigned char *MutableSlice::uend() const {
-  return reinterpret_cast<unsigned char *>(s_) + len_;
-}
-
-inline string MutableSlice::str() const {
-  return string(begin(), size());
-}
-
-inline MutableSlice MutableSlice::substr(size_t from) const {
-  CHECK(from <= len_);
-  return MutableSlice(s_ + from, len_ - from);
-}
-inline MutableSlice MutableSlice::substr(size_t from, size_t size) const {
-  CHECK(from <= len_);
-  return MutableSlice(s_ + from, min(size, len_ - from));
-}
-
-inline size_t MutableSlice::find(char c) const {
-  for (size_t pos = 0; pos < len_; pos++) {
-    if (s_[pos] == c) {
-      return pos;
-    }
-  }
-  return npos;
-}
-
-inline size_t MutableSlice::rfind(char c) const {
-  for (size_t pos = len_; pos-- > 0;) {
-    if (s_[pos] == c) {
-      return pos;
-    }
-  }
-  return npos;
-}
-
-inline void MutableSlice::copy_from(Slice from) {
-  CHECK(size() >= from.size());
-  std::memcpy(ubegin(), from.ubegin(), from.size());
-}
-
-inline char &MutableSlice::back() {
-  CHECK(1 <= len_);
-  return s_[len_ - 1];
-}
-
-inline char &MutableSlice::operator[](size_t i) {
-  return s_[i];
-}
-
-inline Slice::Slice() : s_(""), len_(0) {
-}
-
-inline Slice::Slice(const MutableSlice &other) : s_(other.begin()), len_(other.size()) {
-}
-
-inline Slice::Slice(const char *s, size_t len) : s_(s), len_(len) {
-  CHECK(s_ != nullptr);
-}
-
-inline Slice::Slice(const unsigned char *s, size_t len) : s_(reinterpret_cast<const char *>(s)), len_(len) {
-  CHECK(s_ != nullptr);
-}
-
-inline Slice::Slice(const string &s) : s_(s.c_str()), len_(s.size()) {
-}
-
-template <class T>
-Slice::Slice(T s, std::enable_if_t<std::is_same<char *, std::remove_const_t<T>>::value, private_tag>) : s_(s) {
-  CHECK(s_ != nullptr);
-  len_ = std::strlen(s_);
-}
-
-template <class T>
-Slice::Slice(T s, std::enable_if_t<std::is_same<const char *, std::remove_const_t<T>>::value, private_tag>) : s_(s) {
-  CHECK(s_ != nullptr);
-  len_ = std::strlen(s_);
-}
-
-inline Slice::Slice(const char *s, const char *t) : s_(s), len_(t - s) {
-  CHECK(s_ != nullptr);
-}
-
-inline Slice::Slice(const unsigned char *s, const unsigned char *t)
-    : s_(reinterpret_cast<const char *>(s)), len_(t - s) {
-  CHECK(s_ != nullptr);
-}
-
-inline size_t Slice::size() const {
-  return len_;
-}
-
-inline Slice &Slice::remove_prefix(size_t prefix_len) {
-  CHECK(prefix_len <= len_);
-  s_ += prefix_len;
-  len_ -= prefix_len;
-  return *this;
-}
-
-inline Slice &Slice::remove_suffix(size_t suffix_len) {
-  CHECK(suffix_len <= len_);
-  len_ -= suffix_len;
-  return *this;
-}
-
-inline Slice &Slice::truncate(size_t size) {
-  if (len_ > size) {
-    len_ = size;
-  }
-  return *this;
-}
-
-inline Slice Slice::copy() const {
-  return *this;
-}
-
-inline bool Slice::empty() const {
-  return len_ == 0;
-}
-
-inline const char *Slice::data() const {
-  return s_;
-}
-
-inline const char *Slice::begin() const {
-  return s_;
-}
-
-inline const unsigned char *Slice::ubegin() const {
-  return reinterpret_cast<const unsigned char *>(s_);
-}
-
-inline const char *Slice::end() const {
-  return s_ + len_;
-}
-
-inline const unsigned char *Slice::uend() const {
-  return reinterpret_cast<const unsigned char *>(s_) + len_;
-}
-
-inline string Slice::str() const {
-  return string(begin(), size());
-}
-
-inline Slice Slice::substr(size_t from) const {
-  CHECK(from <= len_);
-  return Slice(s_ + from, len_ - from);
-}
-inline Slice Slice::substr(size_t from, size_t size) const {
-  CHECK(from <= len_);
-  return Slice(s_ + from, min(size, len_ - from));
-}
-
-inline size_t Slice::find(char c) const {
-  for (size_t pos = 0; pos < len_; pos++) {
-    if (s_[pos] == c) {
-      return pos;
-    }
-  }
-  return npos;
-}
-
-inline size_t Slice::rfind(char c) const {
-  for (size_t pos = len_; pos-- > 0;) {
-    if (s_[pos] == c) {
-      return pos;
-    }
-  }
-  return npos;
-}
-
-inline char Slice::back() const {
-  CHECK(1 <= len_);
-  return s_[len_ - 1];
-}
-
-inline char Slice::operator[](size_t i) const {
-  return s_[i];
-}
-
-inline bool operator==(const Slice &a, const Slice &b) {
-  return a.size() == b.size() && std::memcmp(a.data(), b.data(), a.size()) == 0;
-}
-
-inline bool operator!=(const Slice &a, const Slice &b) {
-  return !(a == b);
-}
-
-inline bool operator<(const Slice &a, const Slice &b) {
-  auto x = std::memcmp(a.data(), b.data(), td::min(a.size(), b.size()));
-  if (x == 0) {
-    return a.size() < b.size();
-  }
-  return x < 0;
-}
-
-inline MutableCSlice::MutableCSlice(char *s, char *t) : MutableSlice(s, t) {
-  CHECK(*t == '\0');
-}
-
-inline CSlice::CSlice(const char *s, const char *t) : Slice(s, t) {
-  CHECK(*t == '\0');
-}
-
-inline uint32 SliceHash::operator()(Slice slice) const {
-  // simple string hash
-  uint32 result = 0;
-  constexpr uint32 MUL = 123456789;
-  for (auto c : slice) {
-    result = result * MUL + c;
-  }
-  return result;
-}
-
-inline Slice as_slice(Slice slice) {
-  return slice;
-}
-
-inline Slice as_slice(MutableSlice slice) {
-  return slice;
-}
-
-inline Slice as_slice(const string &str) {
-  return str;
-}
-
-inline MutableSlice as_mutable_slice(MutableSlice slice) {
-  return slice;
-}
-
-inline MutableSlice as_mutable_slice(string &str) {
-  return str;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/SliceBuilder.h b/third-party/td/td/tdutils/td/utils/SliceBuilder.h
deleted file mode 100644
index 70e59d00cc..0000000000
--- a/third-party/td/td/tdutils/td/utils/SliceBuilder.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-
-#define PSLICE() ::td::detail::Slicify() & ::td::SliceBuilder().ref()
-#define PSTRING() ::td::detail::Stringify() & ::td::SliceBuilder().ref()
-
-namespace td {
-
-class SliceBuilder {
- public:
-  template <class T>
-  SliceBuilder &operator<<(T &&other) {
-    sb_ << other;
-    return *this;
-  }
-
-  MutableCSlice as_cslice() {
-    return sb_.as_cslice();
-  }
-
-  SliceBuilder &ref() {
-    return *this;
-  }
-
- private:
-  static const size_t DEFAULT_BUFFER_SIZE = 1024;
-  decltype(StackAllocator::alloc(0)) buffer_ = StackAllocator::alloc(DEFAULT_BUFFER_SIZE);
-  StringBuilder sb_ = StringBuilder(buffer_.as_slice(), true);
-};
-
-namespace detail {
-class Slicify {
- public:
-  CSlice operator&(SliceBuilder &slice_builder) {
-    return slice_builder.as_cslice();
-  }
-};
-
-class Stringify {
- public:
-  string operator&(SliceBuilder &slice_builder) {
-    return slice_builder.as_cslice().str();
-  }
-};
-}  // namespace detail
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Span.h b/third-party/td/td/tdutils/td/utils/Span.h
deleted file mode 100644
index f7102140c7..0000000000
--- a/third-party/td/td/tdutils/td/utils/Span.h
+++ /dev/null
@@ -1,159 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <array>
-#include <iterator>
-
-namespace td {
-
-namespace detail {
-template <class T, class InnerT>
-class SpanImpl {
-  InnerT *data_{nullptr};
-  size_t size_{0};
-
- public:
-  SpanImpl() = default;
-  SpanImpl(InnerT *data, size_t size) : data_(data), size_(size) {
-  }
-  SpanImpl(InnerT &data) : SpanImpl(&data, 1) {
-  }
-
-  template <class OtherInnerT>
-  SpanImpl(const SpanImpl<T, OtherInnerT> &other) : SpanImpl(other.data(), other.size()) {
-  }
-
-  template <size_t N>
-  SpanImpl(const std::array<T, N> &arr) : SpanImpl(arr.data(), arr.size()) {
-  }
-  template <size_t N>
-  SpanImpl(std::array<T, N> &arr) : SpanImpl(arr.data(), arr.size()) {
-  }
-  template <size_t N>
-  SpanImpl(const T (&arr)[N]) : SpanImpl(arr, N) {
-  }
-  template <size_t N>
-  SpanImpl(T (&arr)[N]) : SpanImpl(arr, N) {
-  }
-  SpanImpl(const vector<T> &v) : SpanImpl(v.data(), v.size()) {
-  }
-  SpanImpl(vector<T> &v) : SpanImpl(v.data(), v.size()) {
-  }
-
-  template <class OtherInnerT>
-  SpanImpl &operator=(const SpanImpl<T, OtherInnerT> &other) {
-    SpanImpl copy{other};
-    *this = copy;
-    return *this;
-  }
-  template <class OtherInnerT>
-  bool operator==(const SpanImpl<T, OtherInnerT> &other) const {
-    if (size() != other.size()) {
-      return false;
-    }
-    for (size_t i = 0; i < size(); i++) {
-      if (!((*this)[i] == other[i])) {
-        return false;
-      }
-    }
-    return true;
-  }
-
-  InnerT &operator[](size_t i) {
-    DCHECK(i < size());
-    return data_[i];
-  }
-
-  const InnerT &operator[](size_t i) const {
-    DCHECK(i < size());
-    return data_[i];
-  }
-
-  InnerT &back() {
-    DCHECK(!empty());
-    return data_[size() - 1];
-  }
-
-  const InnerT &back() const {
-    DCHECK(!empty());
-    return data_[size() - 1];
-  }
-
-  InnerT &front() {
-    DCHECK(!empty());
-    return data_[0];
-  }
-
-  const InnerT &front() const {
-    DCHECK(!empty());
-    return data_[0];
-  }
-
-  InnerT *data() const {
-    return data_;
-  }
-
-  InnerT *begin() const {
-    return data_;
-  }
-  InnerT *end() const {
-    return data_ + size_;
-  }
-
-  std::reverse_iterator<InnerT *> rbegin() const {
-    return std::reverse_iterator<InnerT *>(end());
-  }
-  std::reverse_iterator<InnerT *> rend() const {
-    return std::reverse_iterator<InnerT *>(begin());
-  }
-
-  size_t size() const {
-    return size_;
-  }
-  bool empty() const {
-    return size() == 0;
-  }
-
-  SpanImpl &truncate(size_t size) {
-    if (size < size_) {
-      size_ = size;
-    }
-    return *this;
-  }
-
-  SpanImpl substr(size_t offset) const {
-    CHECK(offset <= size_);
-    return SpanImpl(begin() + offset, size_ - offset);
-  }
-  SpanImpl substr(size_t offset, size_t size) const {
-    CHECK(offset <= size_);
-    CHECK(size_ - offset >= size);
-    return SpanImpl(begin() + offset, size);
-  }
-};
-}  // namespace detail
-
-template <class T>
-using Span = detail::SpanImpl<T, const T>;
-
-template <class T>
-using MutableSpan = detail::SpanImpl<T, T>;
-
-template <class T>
-Span<T> as_span(const std::vector<T> &vec) {
-  return Span<T>(vec);
-}
-
-template <class T>
-MutableSpan<T> as_mutable_span(std::vector<T> &vec) {
-  return MutableSpan<T>(vec);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/SpinLock.h b/third-party/td/td/tdutils/td/utils/SpinLock.h
deleted file mode 100644
index d2a4f8b302..0000000000
--- a/third-party/td/td/tdutils/td/utils/SpinLock.h
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/sleep.h"
-
-#include <atomic>
-#include <memory>
-
-namespace td {
-
-class SpinLock {
-  struct Unlock {
-    void operator()(SpinLock *ptr) {
-      ptr->unlock();
-    }
-  };
-
-  class InfBackoff {
-    int cnt = 0;
-
-   public:
-    bool next() {
-      cnt++;
-      if (cnt < 50) {
-        //TODO pause
-        return true;
-      } else {
-        usleep_for(1);
-        return true;
-      }
-    }
-  };
-
- public:
-  using Lock = std::unique_ptr<SpinLock, Unlock>;
-
-  Lock lock() {
-    InfBackoff backoff;
-    while (!try_lock()) {
-      backoff.next();
-    }
-    return Lock(this);
-  }
-  bool try_lock() {
-    return !flag_.test_and_set(std::memory_order_acquire);
-  }
-
- private:
-  std::atomic_flag flag_ = ATOMIC_FLAG_INIT;
-  void unlock() {
-    flag_.clear(std::memory_order_release);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/StackAllocator.cpp b/third-party/td/td/tdutils/td/utils/StackAllocator.cpp
deleted file mode 100644
index 691afbd857..0000000000
--- a/third-party/td/td/tdutils/td/utils/StackAllocator.cpp
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/StackAllocator.h"
-
-#include "td/utils/port/thread_local.h"
-
-#include <array>
-#include <cstdlib>
-
-namespace td {
-namespace {
-class ArrayAllocator final : public StackAllocator::AllocatorImpl {
-  static const size_t MEM_SIZE = 1024 * 1024;
-  std::array<char, MEM_SIZE> mem;
-  size_t pos{0};
-
-  MutableSlice allocate(size_t size) final {
-    if (size > MEM_SIZE) {
-      std::abort();  // too much memory requested
-    }
-    char *res = mem.data() + pos;
-    pos += (size + 7) & -8;
-    if (pos > MEM_SIZE) {
-      std::abort();  // memory is over
-    }
-    return {res, size};
-  }
-
-  void free_ptr(char *ptr, size_t size) final {
-    size = (size + 7) & -8;
-    if (size > pos || ptr != mem.data() + (pos - size)) {
-      std::abort();  // shouldn't happen
-    }
-    pos -= size;
-  }
-
- public:
-  ~ArrayAllocator() final {
-    if (pos != 0) {
-      std::abort();  // shouldn't happen
-    }
-  }
-};
-
-class NewAllocator final : public StackAllocator::AllocatorImpl {
-  MutableSlice allocate(size_t size) final {
-    return {new char[size], size};
-  }
-
-  void free_ptr(char *ptr, size_t size) final {
-    delete[] ptr;
-  }
-
- public:
-  ~NewAllocator() final = default;
-};
-}  // namespace
-
-StackAllocator::Ptr::~Ptr() {
-  if (!slice_.empty()) {
-    allocator_->free_ptr(slice_.data(), slice_.size());
-  }
-}
-
-StackAllocator::AllocatorImpl *StackAllocator::impl() {
-  if (get_thread_id() != 0) {
-    static TD_THREAD_LOCAL ArrayAllocator *array_allocator;  // static zero-initialized
-    init_thread_local<ArrayAllocator>(array_allocator);
-    return array_allocator;
-  } else {
-    static NewAllocator new_allocator;
-    return &new_allocator;
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/StackAllocator.h b/third-party/td/td/tdutils/td/utils/StackAllocator.h
deleted file mode 100644
index a20c6f82ec..0000000000
--- a/third-party/td/td/tdutils/td/utils/StackAllocator.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-class StackAllocator {
- public:
-  class AllocatorImpl {
-   public:
-    AllocatorImpl() = default;
-    AllocatorImpl(const AllocatorImpl &) = delete;
-    AllocatorImpl &operator=(const AllocatorImpl &) = delete;
-    AllocatorImpl(AllocatorImpl &&) = delete;
-    AllocatorImpl &operator=(AllocatorImpl &&) = delete;
-    virtual ~AllocatorImpl() = default;
-
-    virtual MutableSlice allocate(size_t size) = 0;
-
-    virtual void free_ptr(char *ptr, size_t size) = 0;
-  };
-
- private:
-  class Ptr {
-   public:
-    Ptr(AllocatorImpl *allocator, size_t size) : allocator_(allocator), slice_(allocator_->allocate(size)) {
-    }
-    Ptr(const Ptr &) = delete;
-    Ptr &operator=(const Ptr &) = delete;
-    Ptr(Ptr &&other) noexcept : allocator_(other.allocator_), slice_(other.slice_) {
-      other.allocator_ = nullptr;
-      other.slice_ = MutableSlice();
-    }
-    Ptr &operator=(Ptr &&) = delete;
-    ~Ptr();
-
-    MutableSlice as_slice() const {
-      return slice_;
-    }
-
-   private:
-    AllocatorImpl *allocator_;
-    MutableSlice slice_;
-  };
-
-  static AllocatorImpl *impl();
-
- public:
-  static Ptr alloc(size_t size) {
-    return Ptr(impl(), size);
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Status.cpp b/third-party/td/td/tdutils/td/utils/Status.cpp
deleted file mode 100644
index 91a969f707..0000000000
--- a/third-party/td/td/tdutils/td/utils/Status.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/Status.h"
-
-#include "td/utils/SliceBuilder.h"
-
-#if TD_PORT_WINDOWS
-#include "td/utils/port/wstring_convert.h"
-#endif
-
-#if TD_PORT_POSIX
-#include "td/utils/port/thread_local.h"
-
-#include <string.h>
-
-#include <cstring>
-#endif
-
-namespace td {
-
-#if TD_PORT_POSIX
-CSlice strerror_safe(int code) {
-  const size_t size = 1000;
-
-  static TD_THREAD_LOCAL char *buf;
-  init_thread_local<char[]>(buf, size);
-
-#if !defined(__GLIBC__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !_GNU_SOURCE)
-  strerror_r(code, buf, size);
-  return CSlice(buf, buf + std::strlen(buf));
-#else
-  return CSlice(strerror_r(code, buf, size));
-#endif
-}
-#endif
-
-#if TD_PORT_WINDOWS
-string winerror_to_string(int code) {
-  const size_t size = 1000;
-  wchar_t wbuf[size];
-  auto res_size = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, nullptr, code, 0, wbuf, size - 1, nullptr);
-  if (res_size == 0) {
-    return "Unknown Windows error";
-  }
-  while (res_size != 0 && (wbuf[res_size - 1] == '\n' || wbuf[res_size - 1] == '\r')) {
-    res_size--;
-  }
-  auto error_message = from_wstring(wbuf, res_size);
-  if (error_message.is_error()) {
-    return "Invalid Windows error";
-  }
-  return error_message.move_as_ok();
-}
-#endif
-
-Status Status::move_as_error_prefix(Slice prefix) const {
-  CHECK(is_error());
-  return move_as_error_prefix_unsafe(prefix);
-}
-
-Status Status::move_as_error_prefix_unsafe(Slice prefix) const {
-  Info info = get_info();
-  switch (info.error_type) {
-    case ErrorType::General:
-      return Error(code(), PSLICE() << prefix << message());
-    case ErrorType::Os:
-      return Status(false, ErrorType::Os, code(), PSLICE() << prefix << message());
-    default:
-      UNREACHABLE();
-      return {};
-  }
-}
-
-Status Status::move_as_error_suffix(Slice suffix) const {
-  CHECK(is_error());
-  return move_as_error_suffix_unsafe(suffix);
-}
-
-Status Status::move_as_error_suffix_unsafe(Slice suffix) const {
-  Info info = get_info();
-  switch (info.error_type) {
-    case ErrorType::General:
-      return Error(code(), PSLICE() << message() << suffix);
-    case ErrorType::Os:
-      return Status(false, ErrorType::Os, code(), PSLICE() << message() << suffix);
-    default:
-      UNREACHABLE();
-      return {};
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Status.h b/third-party/td/td/tdutils/td/utils/Status.h
deleted file mode 100644
index f62318a016..0000000000
--- a/third-party/td/td/tdutils/td/utils/Status.h
+++ /dev/null
@@ -1,625 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-
-#include <cerrno>
-#include <cstring>
-#include <memory>
-#include <new>
-#include <type_traits>
-#include <utility>
-
-#define TRY_STATUS(status)                      \
-  {                                             \
-    auto try_status = (status);                 \
-    if (try_status.is_error()) {                \
-      return try_status.move_as_error_unsafe(); \
-    }                                           \
-  }
-
-#define TRY_STATUS_PREFIX(status, prefix)                    \
-  {                                                          \
-    auto try_status = (status);                              \
-    if (try_status.is_error()) {                             \
-      return try_status.move_as_error_prefix_unsafe(prefix); \
-    }                                                        \
-  }
-
-#define TRY_STATUS_PROMISE(promise_name, status)                        \
-  {                                                                     \
-    auto try_status = (status);                                         \
-    if (try_status.is_error()) {                                        \
-      return promise_name.set_error(try_status.move_as_error_unsafe()); \
-    }                                                                   \
-  }
-
-#define TRY_STATUS_PROMISE_PREFIX(promise_name, status, prefix)                      \
-  {                                                                                  \
-    auto try_status = (status);                                                      \
-    if (try_status.is_error()) {                                                     \
-      return promise_name.set_error(try_status.move_as_error_prefix_unsafe(prefix)); \
-    }                                                                                \
-  }
-
-#define TRY_RESULT(name, result) TRY_RESULT_IMPL(TD_CONCAT(TD_CONCAT(r_, name), __LINE__), auto name, result)
-
-#define TRY_RESULT_PROMISE(promise_name, name, result) \
-  TRY_RESULT_PROMISE_IMPL(promise_name, TD_CONCAT(TD_CONCAT(r_, name), __LINE__), auto name, result)
-
-#define TRY_RESULT_ASSIGN(name, result) TRY_RESULT_IMPL(TD_CONCAT(r_response, __LINE__), name, result)
-
-#define TRY_RESULT_PROMISE_ASSIGN(promise_name, name, result) \
-  TRY_RESULT_PROMISE_IMPL(promise_name, TD_CONCAT(TD_CONCAT(r_, name), __LINE__), name, result)
-
-#define TRY_RESULT_PREFIX(name, result, prefix) \
-  TRY_RESULT_PREFIX_IMPL(TD_CONCAT(TD_CONCAT(r_, name), __LINE__), auto name, result, prefix)
-
-#define TRY_RESULT_PREFIX_ASSIGN(name, result, prefix) \
-  TRY_RESULT_PREFIX_IMPL(TD_CONCAT(TD_CONCAT(r_, name), __LINE__), name, result, prefix)
-
-#define TRY_RESULT_PROMISE_PREFIX(promise_name, name, result, prefix) \
-  TRY_RESULT_PROMISE_PREFIX_IMPL(promise_name, TD_CONCAT(TD_CONCAT(r_, name), __LINE__), auto name, result, prefix)
-
-#define TRY_RESULT_PROMISE_PREFIX_ASSIGN(promise_name, name, result, prefix) \
-  TRY_RESULT_PROMISE_PREFIX_IMPL(promise_name, TD_CONCAT(TD_CONCAT(r_, name), __LINE__), name, result, prefix)
-
-#define TRY_RESULT_IMPL(r_name, name, result) \
-  auto r_name = (result);                     \
-  if (r_name.is_error()) {                    \
-    return r_name.move_as_error_unsafe();     \
-  }                                           \
-  name = r_name.move_as_ok_unsafe();
-
-#define TRY_RESULT_PREFIX_IMPL(r_name, name, result, prefix) \
-  auto r_name = (result);                                    \
-  if (r_name.is_error()) {                                   \
-    return r_name.move_as_error_prefix_unsafe(prefix);       \
-  }                                                          \
-  name = r_name.move_as_ok_unsafe();
-
-#define TRY_RESULT_PROMISE_IMPL(promise_name, r_name, name, result) \
-  auto r_name = (result);                                           \
-  if (r_name.is_error()) {                                          \
-    return promise_name.set_error(r_name.move_as_error_unsafe());   \
-  }                                                                 \
-  name = r_name.move_as_ok_unsafe();
-
-#define TRY_RESULT_PROMISE_PREFIX_IMPL(promise_name, r_name, name, result, prefix) \
-  auto r_name = (result);                                                          \
-  if (r_name.is_error()) {                                                         \
-    return promise_name.set_error(r_name.move_as_error_prefix_unsafe(prefix));     \
-  }                                                                                \
-  name = r_name.move_as_ok_unsafe();
-
-#define LOG_STATUS(status)                             \
-  {                                                    \
-    auto log_status = (status);                        \
-    if (log_status.is_error()) {                       \
-      LOG(ERROR) << log_status.move_as_error_unsafe(); \
-    }                                                  \
-  }
-
-#ifndef TD_STATUS_NO_ENSURE
-#define ensure() ensure_impl(__FILE__, __LINE__)
-#define ensure_error() ensure_error_impl(__FILE__, __LINE__)
-#endif
-
-#if TD_PORT_POSIX
-#define OS_ERROR(message)                                    \
-  [&] {                                                      \
-    auto saved_errno = errno;                                \
-    return ::td::Status::PosixError(saved_errno, (message)); \
-  }()
-#define OS_SOCKET_ERROR(message) OS_ERROR(message)
-#elif TD_PORT_WINDOWS
-#define OS_ERROR(message)                                      \
-  [&] {                                                        \
-    auto saved_error = ::GetLastError();                       \
-    return ::td::Status::WindowsError(saved_error, (message)); \
-  }()
-#define OS_SOCKET_ERROR(message)                               \
-  [&] {                                                        \
-    auto saved_error = ::WSAGetLastError();                    \
-    return ::td::Status::WindowsError(saved_error, (message)); \
-  }()
-#endif
-
-namespace td {
-
-#if TD_PORT_POSIX
-CSlice strerror_safe(int code);
-#endif
-
-#if TD_PORT_WINDOWS
-string winerror_to_string(int code);
-#endif
-
-class Status {
-  enum class ErrorType : int8 { General, Os };
-
- public:
-  Status() = default;
-
-  bool is_static() const {
-    if (is_ok()) {
-      return true;
-    }
-    return get_info().static_flag;
-  }
-
-  Status clone() const TD_WARN_UNUSED_RESULT {
-    if (is_ok()) {
-      return Status();
-    }
-    auto info = get_info();
-    if (info.static_flag) {
-      return clone_static(-999);
-    }
-    return Status(false, info.error_type, info.error_code, message());
-  }
-
-  static Status OK() TD_WARN_UNUSED_RESULT {
-    return Status();
-  }
-
-  static Status Error(int err, Slice message = Slice()) TD_WARN_UNUSED_RESULT {
-    return Status(false, ErrorType::General, err, message);
-  }
-
-  static Status Error(Slice message) TD_WARN_UNUSED_RESULT {
-    return Error(0, message);
-  }
-
-#if TD_PORT_WINDOWS
-  static Status WindowsError(int saved_error, Slice message) TD_WARN_UNUSED_RESULT {
-    return Status(false, ErrorType::Os, saved_error, message);
-  }
-#endif
-
-#if TD_PORT_POSIX
-  static Status PosixError(int32 saved_errno, Slice message) TD_WARN_UNUSED_RESULT {
-    return Status(false, ErrorType::Os, saved_errno, message);
-  }
-#endif
-
-  template <int Code>
-  static Status Error() {
-    static Status status(true, ErrorType::General, Code, "");
-    return status.clone_static(Code);
-  }
-
-  StringBuilder &print(StringBuilder &sb) const {
-    if (is_ok()) {
-      return sb << "OK";
-    }
-    Info info = get_info();
-    switch (info.error_type) {
-      case ErrorType::General:
-        sb << "[Error";
-        break;
-      case ErrorType::Os:
-#if TD_PORT_POSIX
-        sb << "[PosixError : " << strerror_safe(info.error_code);
-#elif TD_PORT_WINDOWS
-        sb << "[WindowsError : " << winerror_to_string(info.error_code);
-#endif
-        break;
-      default:
-        UNREACHABLE();
-        break;
-    }
-    sb << " : " << code() << " : " << message() << "]";
-    return sb;
-  }
-
-  string to_string() const {
-    auto buf = StackAllocator::alloc(4096);
-    StringBuilder sb(buf.as_slice());
-    print(sb);
-    return sb.as_cslice().str();
-  }
-
-  // Default interface
-  bool is_ok() const TD_WARN_UNUSED_RESULT {
-    return !is_error();
-  }
-
-  bool is_error() const TD_WARN_UNUSED_RESULT {
-    return ptr_ != nullptr;
-  }
-
-#ifdef TD_STATUS_NO_ENSURE
-  void ensure() const {
-    if (!is_ok()) {
-      LOG(FATAL) << "Unexpected Status " << to_string();
-    }
-  }
-  void ensure_error() const {
-    if (is_ok()) {
-      LOG(FATAL) << "Unexpected Status::OK";
-    }
-  }
-#else
-  void ensure_impl(CSlice file_name, int line) const {
-    if (!is_ok()) {
-      LOG(FATAL) << "Unexpected Status " << to_string() << " in file " << file_name << " at line " << line;
-    }
-  }
-  void ensure_error_impl(CSlice file_name, int line) const {
-    if (is_ok()) {
-      LOG(FATAL) << "Unexpected Status::OK in file " << file_name << " at line " << line;
-    }
-  }
-#endif
-
-  void ignore() const {
-    // nop
-  }
-
-  int32 code() const {
-    if (is_ok()) {
-      return 0;
-    }
-    return get_info().error_code;
-  }
-
-  CSlice message() const {
-    if (is_ok()) {
-      return CSlice("OK");
-    }
-    return CSlice(ptr_.get() + sizeof(Info));
-  }
-
-  string public_message() const {
-    if (is_ok()) {
-      return "OK";
-    }
-    Info info = get_info();
-    switch (info.error_type) {
-      case ErrorType::General:
-        return message().str();
-      case ErrorType::Os:
-#if TD_PORT_POSIX
-        return strerror_safe(info.error_code).str();
-#elif TD_PORT_WINDOWS
-        return winerror_to_string(info.error_code);
-#endif
-      default:
-        UNREACHABLE();
-        return "";
-    }
-  }
-
-  const Status &error() const {
-    return *this;
-  }
-
-  Status move() TD_WARN_UNUSED_RESULT {
-    return std::move(*this);
-  }
-
-  Status move_as_error() TD_WARN_UNUSED_RESULT {
-    return std::move(*this);
-  }
-
-  Status move_as_error_unsafe() TD_WARN_UNUSED_RESULT {
-    return std::move(*this);
-  }
-
-  Status move_as_ok() = delete;
-
-  Status move_as_ok_unsafe() = delete;
-
-  Status move_as_error_prefix(const Status &status) const TD_WARN_UNUSED_RESULT {
-    return status.move_as_error_suffix(message());
-  }
-
-  Status move_as_error_prefix(Slice prefix) const TD_WARN_UNUSED_RESULT;
-
-  Status move_as_error_prefix_unsafe(Slice prefix) const TD_WARN_UNUSED_RESULT;
-
-  Status move_as_error_suffix(Slice suffix) const TD_WARN_UNUSED_RESULT;
-
-  Status move_as_error_suffix_unsafe(Slice suffix) const TD_WARN_UNUSED_RESULT;
-
- private:
-  struct Info {
-    bool static_flag : 1;
-    signed int error_code : 23;
-    ErrorType error_type;
-  };
-
-  struct Deleter {
-    void operator()(char *ptr) {
-      if (!get_info(ptr).static_flag) {
-        delete[] ptr;
-      }
-    }
-  };
-  std::unique_ptr<char[], Deleter> ptr_;
-
-  Status(Info info, Slice message) {
-    size_t size = sizeof(Info) + message.size() + 1;
-    ptr_ = std::unique_ptr<char[], Deleter>(new char[size]);
-    char *ptr = ptr_.get();
-    reinterpret_cast<Info *>(ptr)[0] = info;
-    ptr += sizeof(Info);
-    std::memcpy(ptr, message.begin(), message.size());
-    ptr += message.size();
-    *ptr = 0;
-  }
-
-  Status(bool static_flag, ErrorType error_type, int error_code, Slice message)
-      : Status(to_info(static_flag, error_type, error_code), message) {
-    if (static_flag) {
-      TD_LSAN_IGNORE(ptr_.get());
-    }
-  }
-
-  Status clone_static(int code) const TD_WARN_UNUSED_RESULT {
-    LOG_CHECK(ptr_ != nullptr && get_info().static_flag) << static_cast<const void *>(ptr_.get()) << ' ' << code;
-    Status result;
-    result.ptr_ = std::unique_ptr<char[], Deleter>(ptr_.get());
-    return result;
-  }
-
-  static Info to_info(bool static_flag, ErrorType error_type, int error_code) {
-    const int MIN_ERROR_CODE = -(1 << 22) + 1;
-    const int MAX_ERROR_CODE = (1 << 22) - 1;
-    Info tmp;
-    tmp.static_flag = static_flag;
-    tmp.error_type = error_type;
-
-    if (error_code < MIN_ERROR_CODE) {
-      LOG(ERROR) << "Error code value is altered from " << error_code;
-      error_code = MIN_ERROR_CODE;
-    }
-    if (error_code > MAX_ERROR_CODE) {
-      LOG(ERROR) << "Error code value is altered from " << error_code;
-      error_code = MAX_ERROR_CODE;
-    }
-
-#if TD_GCC
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wconversion"
-#endif
-    tmp.error_code = error_code;
-#if TD_GCC
-#pragma GCC diagnostic pop
-#endif
-    CHECK(error_code == tmp.error_code);
-    return tmp;
-  }
-
-  Info get_info() const {
-    return get_info(ptr_.get());
-  }
-  static Info get_info(char *ptr) {
-    return reinterpret_cast<Info *>(ptr)[0];
-  }
-};
-
-template <class T = Unit>
-class Result {
- public:
-  using ValueT = T;
-  Result() : status_(Status::Error<-1>()) {
-  }
-  template <class S, std::enable_if_t<!std::is_same<std::decay_t<S>, Result>::value, int> = 0>
-  Result(S &&x) : status_(), value_(std::forward<S>(x)) {
-  }
-  struct emplace_t {};
-  template <class... ArgsT>
-  Result(emplace_t, ArgsT &&...args) : status_(), value_(std::forward<ArgsT>(args)...) {
-  }
-  Result(Status &&status) : status_(std::move(status)) {
-    CHECK(status_.is_error());
-  }
-  Result(const Result &) = delete;
-  Result &operator=(const Result &) = delete;
-  Result(Result &&other) noexcept : status_(std::move(other.status_)) {
-    if (status_.is_ok()) {
-      new (&value_) T(std::move(other.value_));
-      other.value_.~T();
-    }
-    other.status_ = Status::Error<-2>();
-  }
-  Result &operator=(Result &&other) noexcept {
-    CHECK(this != &other);
-    if (status_.is_ok()) {
-      value_.~T();
-    }
-    if (other.status_.is_ok()) {
-#if TD_GCC
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
-#endif
-      new (&value_) T(std::move(other.value_));
-#if TD_GCC
-#pragma GCC diagnostic pop
-#endif
-      other.value_.~T();
-    }
-    status_ = std::move(other.status_);
-    other.status_ = Status::Error<-3>();
-    return *this;
-  }
-  template <class... ArgsT>
-  void emplace(ArgsT &&...args) {
-    if (status_.is_ok()) {
-      value_.~T();
-    }
-    new (&value_) T(std::forward<ArgsT>(args)...);
-    status_ = Status::OK();
-  }
-  ~Result() {
-    if (status_.is_ok()) {
-      value_.~T();
-    }
-  }
-
-#ifdef TD_STATUS_NO_ENSURE
-  void ensure() const {
-    status_.ensure();
-  }
-  void ensure_error() const {
-    status_.ensure_error();
-  }
-#else
-  void ensure_impl(CSlice file_name, int line) const {
-    status_.ensure_impl(file_name, line);
-  }
-  void ensure_error_impl(CSlice file_name, int line) const {
-    status_.ensure_error_impl(file_name, line);
-  }
-#endif
-  void ignore() const {
-    status_.ignore();
-  }
-  bool is_ok() const {
-    return status_.is_ok();
-  }
-  bool is_error() const {
-    return status_.is_error();
-  }
-  const Status &error() const {
-    CHECK(status_.is_error());
-    return status_;
-  }
-  Status move_as_error() TD_WARN_UNUSED_RESULT {
-    CHECK(status_.is_error());
-    SCOPE_EXIT {
-      status_ = Status::Error<-4>();
-    };
-    return std::move(status_);
-  }
-  Status move_as_error_unsafe() TD_WARN_UNUSED_RESULT {
-    SCOPE_EXIT {
-      status_ = Status::Error<-5>();
-    };
-    return std::move(status_);
-  }
-  Status move_as_error_prefix(Slice prefix) TD_WARN_UNUSED_RESULT {
-    SCOPE_EXIT {
-      status_ = Status::Error<-6>();
-    };
-    return status_.move_as_error_prefix(prefix);
-  }
-  Status move_as_error_prefix_unsafe(Slice prefix) TD_WARN_UNUSED_RESULT {
-    SCOPE_EXIT {
-      status_ = Status::Error<-7>();
-    };
-    return status_.move_as_error_prefix_unsafe(prefix);
-  }
-  Status move_as_error_prefix(const Status &prefix) TD_WARN_UNUSED_RESULT {
-    SCOPE_EXIT {
-      status_ = Status::Error<-8>();
-    };
-    return status_.move_as_error_prefix(prefix);
-  }
-
-  Status move_as_error_suffix(Slice suffix) TD_WARN_UNUSED_RESULT {
-    SCOPE_EXIT {
-      status_ = Status::Error<-9>();
-    };
-    return status_.move_as_error_suffix(suffix);
-  }
-  Status move_as_error_suffix_unsafe(Slice suffix) TD_WARN_UNUSED_RESULT {
-    SCOPE_EXIT {
-      status_ = Status::Error<-10>();
-    };
-    return status_.move_as_error_suffix_unsafe(suffix);
-  }
-
-  const T &ok() const {
-    LOG_CHECK(status_.is_ok()) << status_;
-    return value_;
-  }
-  T &ok_ref() {
-    LOG_CHECK(status_.is_ok()) << status_;
-    return value_;
-  }
-  const T &ok_ref() const {
-    LOG_CHECK(status_.is_ok()) << status_;
-    return value_;
-  }
-  T move_as_ok() {
-    LOG_CHECK(status_.is_ok()) << status_;
-    return std::move(value_);
-  }
-  T move_as_ok_unsafe() {
-    return std::move(value_);
-  }
-
-  Result<T> clone() const TD_WARN_UNUSED_RESULT {
-    if (is_ok()) {
-      return Result<T>(ok());  // TODO: return clone(ok());
-    }
-    return error().clone();
-  }
-  void clear() {
-    *this = Result<T>();
-  }
-
-  template <class F>
-  Result<decltype(std::declval<F>()(std::declval<T>()))> move_map(F &&f) {
-    if (is_error()) {
-      return move_as_error_unsafe();
-    }
-    return f(move_as_ok_unsafe());
-  }
-
-  template <class F>
-  decltype(std::declval<F>()(std::declval<T>())) move_fmap(F &&f) {
-    if (is_error()) {
-      return move_as_error_unsafe();
-    }
-    return f(move_as_ok_unsafe());
-  }
-
- private:
-  Status status_;
-  union {
-    T value_;
-  };
-};
-
-template <>
-inline Result<Unit>::Result(Status &&status) : status_(std::move(status)) {
-  // no assert
-}
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const Status &status) {
-  return status.print(string_builder);
-}
-
-template <class T>
-StringBuilder &operator<<(StringBuilder &sb, const Result<T> &result) {
-  if (result.is_ok()) {
-    return sb << "Ok{" << result.ok() << '}';
-  }
-  return sb << result.error();
-}
-
-template <class T, class S>
-bool operator==(const S &a, const Result<T> &b) {
-  return b.is_ok() && a == b.ok();
-}
-
-template <class T, class S>
-bool operator==(const Result<S> &a, const T &b) {
-  return a.is_ok() && a.ok() == b;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/StealingQueue.h b/third-party/td/td/tdutils/td/utils/StealingQueue.h
deleted file mode 100644
index 092dbf8017..0000000000
--- a/third-party/td/td/tdutils/td/utils/StealingQueue.h
+++ /dev/null
@@ -1,125 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-
-#include <array>
-#include <atomic>
-
-namespace td {
-
-template <class T, size_t N = 256>
-class StealingQueue {
- public:
-  static_assert(N > 0 && (N & (N - 1)) == 0, "");
-
-  // tries to put a value
-  // returns if succeeded
-  // only owner is allowed to to do this
-  template <class F>
-  void local_push(T value, F &&overflow_f) {
-    while (true) {
-      auto tail = tail_.load(std::memory_order_relaxed);
-      auto head = head_.load();  // TODO: memory order
-
-      if (static_cast<size_t>(tail - head) < N) {
-        buf_[tail & MASK].store(value, std::memory_order_relaxed);
-        tail_.store(tail + 1, std::memory_order_release);
-        return;
-      }
-
-      // queue is full
-      // TODO: batch insert into global queue?
-      auto n = N / 2 + 1;
-      auto new_head = head + n;
-      if (!head_.compare_exchange_strong(head, new_head)) {
-        continue;
-      }
-
-      for (size_t i = 0; i < n; i++) {
-        overflow_f(buf_[(i + head) & MASK].load(std::memory_order_relaxed));
-      }
-      overflow_f(value);
-
-      return;
-    }
-  }
-
-  // tries to pop a value
-  // returns if succeeded
-  // only owner is allowed to do this
-  bool local_pop(T &value) {
-    auto tail = tail_.load(std::memory_order_relaxed);
-    auto head = head_.load();
-
-    if (head == tail) {
-      return false;
-    }
-
-    value = buf_[head & MASK].load(std::memory_order_relaxed);
-    return head_.compare_exchange_strong(head, head + 1);
-  }
-
-  bool steal(T &value, StealingQueue<T, N> &other) {
-    while (true) {
-      auto tail = tail_.load(std::memory_order_relaxed);
-      auto head = head_.load();  // TODO: memory order
-
-      auto other_head = other.head_.load();
-      auto other_tail = other.tail_.load(std::memory_order_acquire);
-
-      if (other_tail < other_head) {
-        continue;
-      }
-      auto n = narrow_cast<size_t>(other_tail - other_head);
-      if (n > N) {
-        continue;
-      }
-      n -= n / 2;
-      n = td::min(n, static_cast<size_t>(head + N - tail));
-      if (n == 0) {
-        return false;
-      }
-
-      for (size_t i = 0; i < n; i++) {
-        buf_[(i + tail) & MASK].store(other.buf_[(i + other_head) & MASK].load(std::memory_order_relaxed),
-                                      std::memory_order_relaxed);
-      }
-
-      if (!other.head_.compare_exchange_strong(other_head, other_head + n)) {
-        continue;
-      }
-
-      n--;
-      value = buf_[(tail + n) & MASK].load(std::memory_order_relaxed);
-      tail_.store(tail + n, std::memory_order_release);
-      return true;
-    }
-  }
-
-  StealingQueue() {
-    for (auto &x : buf_) {
-// workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64658
-#if TD_GCC && GCC_VERSION <= 40902
-      x = T();
-#else
-      std::atomic_init(&x, T());
-#endif
-    }
-    std::atomic_thread_fence(std::memory_order_seq_cst);
-  }
-
- private:
-  std::atomic<int64> head_{0};
-  std::atomic<int64> tail_{0};
-  static constexpr size_t MASK{N - 1};
-  std::array<std::atomic<T>, N> buf_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Storer.h b/third-party/td/td/tdutils/td/utils/Storer.h
deleted file mode 100644
index 53d2d0d0c6..0000000000
--- a/third-party/td/td/tdutils/td/utils/Storer.h
+++ /dev/null
@@ -1,88 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/StorerBase.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tl_storers.h"
-
-#include <cstring>
-#include <limits>
-
-namespace td {
-
-class SliceStorer final : public Storer {
-  Slice slice;
-
- public:
-  explicit SliceStorer(Slice slice) : slice(slice) {
-  }
-  size_t size() const final {
-    return slice.size();
-  }
-  size_t store(uint8 *ptr) const final {
-    std::memcpy(ptr, slice.ubegin(), slice.size());
-    return slice.size();
-  }
-};
-
-inline SliceStorer create_storer(Slice slice) {
-  return SliceStorer(slice);
-}
-
-class ConcatStorer final : public Storer {
-  const Storer &a_;
-  const Storer &b_;
-
- public:
-  ConcatStorer(const Storer &a, const Storer &b) : a_(a), b_(b) {
-  }
-
-  size_t size() const final {
-    return a_.size() + b_.size();
-  }
-
-  size_t store(uint8 *ptr) const final {
-    uint8 *ptr_save = ptr;
-    ptr += a_.store(ptr);
-    ptr += b_.store(ptr);
-    return ptr - ptr_save;
-  }
-};
-
-inline ConcatStorer create_storer(const Storer &a, const Storer &b) {
-  return ConcatStorer(a, b);
-}
-
-template <class T>
-class DefaultStorer final : public Storer {
- public:
-  explicit DefaultStorer(const T &object) : object_(object) {
-  }
-  size_t size() const final {
-    if (size_ == std::numeric_limits<size_t>::max()) {
-      size_ = tl_calc_length(object_);
-    }
-    return size_;
-  }
-  size_t store(uint8 *ptr) const final {
-    return tl_store_unsafe(object_, ptr);
-  }
-
- private:
-  mutable size_t size_ = std::numeric_limits<size_t>::max();
-  const T &object_;
-};
-
-template <class T>
-DefaultStorer<T> create_default_storer(const T &from) {
-  return DefaultStorer<T>(from);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/StorerBase.h b/third-party/td/td/tdutils/td/utils/StorerBase.h
deleted file mode 100644
index c860054eb7..0000000000
--- a/third-party/td/td/tdutils/td/utils/StorerBase.h
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/int_types.h"
-
-namespace td {
-
-class Storer {
- public:
-  Storer() = default;
-  Storer(const Storer &) = delete;
-  Storer &operator=(const Storer &) = delete;
-  Storer(Storer &&) = default;
-  Storer &operator=(Storer &&) = default;
-  virtual ~Storer() = default;
-  virtual size_t size() const = 0;
-  virtual size_t store(uint8 *ptr) const TD_WARN_UNUSED_RESULT = 0;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/StringBuilder.cpp b/third-party/td/td/tdutils/td/utils/StringBuilder.cpp
deleted file mode 100644
index 7a6116affa..0000000000
--- a/third-party/td/td/tdutils/td/utils/StringBuilder.cpp
+++ /dev/null
@@ -1,229 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/StringBuilder.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/port/thread_local.h"
-
-#include <cstdio>
-#include <cstring>
-#include <limits>
-#include <locale>
-#include <memory>
-#include <sstream>
-#include <utility>
-
-namespace td {
-
-StringBuilder::StringBuilder(MutableSlice slice, bool use_buffer)
-    : begin_ptr_(slice.begin()), current_ptr_(begin_ptr_), use_buffer_(use_buffer) {
-  if (slice.size() <= RESERVED_SIZE) {
-    auto buffer_size = RESERVED_SIZE + 100;
-    buffer_ = std::make_unique<char[]>(buffer_size);
-    begin_ptr_ = buffer_.get();
-    current_ptr_ = begin_ptr_;
-    end_ptr_ = begin_ptr_ + buffer_size - RESERVED_SIZE;
-  } else {
-    end_ptr_ = slice.end() - RESERVED_SIZE;
-  }
-}
-
-StringBuilder &StringBuilder::operator<<(Slice slice) {
-  size_t size = slice.size();
-  if (unlikely(!reserve(size))) {
-    if (end_ptr_ < current_ptr_) {
-      return on_error();
-    }
-    auto available_size = static_cast<size_t>(end_ptr_ + RESERVED_SIZE - 1 - current_ptr_);
-    if (size > available_size) {
-      error_flag_ = true;
-      size = available_size;
-    }
-  }
-
-  std::memcpy(current_ptr_, slice.begin(), size);
-  current_ptr_ += size;
-  return *this;
-}
-
-void StringBuilder::append_char(size_t count, char c) {
-  if (unlikely(!reserve(count))) {
-    if (end_ptr_ < current_ptr_) {
-      on_error();
-      return;
-    }
-    auto available_size = static_cast<size_t>(end_ptr_ + RESERVED_SIZE - 1 - current_ptr_);
-    if (count > available_size) {
-      error_flag_ = true;
-      count = available_size;
-    }
-  }
-
-  MutableSlice(current_ptr_, count).fill(c);
-  current_ptr_ += count;
-}
-
-template <class T>
-static char *print_uint(char *current_ptr, T x) {
-  if (x < 100) {
-    if (x < 10) {
-      *current_ptr++ = static_cast<char>('0' + x);
-    } else {
-      *current_ptr++ = static_cast<char>('0' + x / 10);
-      *current_ptr++ = static_cast<char>('0' + x % 10);
-    }
-    return current_ptr;
-  }
-
-  auto begin_ptr = current_ptr;
-  do {
-    *current_ptr++ = static_cast<char>('0' + x % 10);
-    x /= 10;
-  } while (x > 0);
-
-  auto end_ptr = current_ptr - 1;
-  while (begin_ptr < end_ptr) {
-    std::swap(*begin_ptr++, *end_ptr--);
-  }
-
-  return current_ptr;
-}
-
-template <class T>
-static char *print_int(char *current_ptr, T x) {
-  if (x < 0) {
-    if (x == std::numeric_limits<T>::min()) {
-      current_ptr = print_int(current_ptr, x + 1);
-      CHECK(current_ptr[-1] != '9');
-      current_ptr[-1]++;
-      return current_ptr;
-    }
-
-    *current_ptr++ = '-';
-    x = -x;
-  }
-
-  return print_uint(current_ptr, x);
-}
-
-bool StringBuilder::reserve_inner(size_t size) {
-  if (!use_buffer_) {
-    return false;
-  }
-
-  size_t old_data_size = current_ptr_ - begin_ptr_;
-  if (size >= std::numeric_limits<size_t>::max() - RESERVED_SIZE - old_data_size - 1) {
-    return false;
-  }
-  size_t need_data_size = old_data_size + size;
-  size_t old_buffer_size = end_ptr_ - begin_ptr_;
-  if (old_buffer_size >= (std::numeric_limits<size_t>::max() - RESERVED_SIZE) / 2 - 2) {
-    return false;
-  }
-  size_t new_buffer_size = (old_buffer_size + 1) * 2;
-  if (new_buffer_size < need_data_size) {
-    new_buffer_size = need_data_size;
-  }
-  if (new_buffer_size < 100) {
-    new_buffer_size = 100;
-  }
-  new_buffer_size += RESERVED_SIZE;
-  auto new_buffer = std::make_unique<char[]>(new_buffer_size);
-  std::memcpy(new_buffer.get(), begin_ptr_, old_data_size);
-  buffer_ = std::move(new_buffer);
-  begin_ptr_ = buffer_.get();
-  current_ptr_ = begin_ptr_ + old_data_size;
-  end_ptr_ = begin_ptr_ + new_buffer_size - RESERVED_SIZE;
-  CHECK(end_ptr_ > current_ptr_);
-  CHECK(static_cast<size_t>(end_ptr_ - current_ptr_) >= size);
-  return true;
-}
-
-StringBuilder &StringBuilder::operator<<(int x) {
-  if (unlikely(!reserve())) {
-    return on_error();
-  }
-  current_ptr_ = print_int(current_ptr_, x);
-  return *this;
-}
-
-StringBuilder &StringBuilder::operator<<(unsigned int x) {
-  if (unlikely(!reserve())) {
-    return on_error();
-  }
-  current_ptr_ = print_uint(current_ptr_, x);
-  return *this;
-}
-
-StringBuilder &StringBuilder::operator<<(long int x) {
-  if (unlikely(!reserve())) {
-    return on_error();
-  }
-  current_ptr_ = print_int(current_ptr_, x);
-  return *this;
-}
-
-StringBuilder &StringBuilder::operator<<(long unsigned int x) {
-  if (unlikely(!reserve())) {
-    return on_error();
-  }
-  current_ptr_ = print_uint(current_ptr_, x);
-  return *this;
-}
-
-StringBuilder &StringBuilder::operator<<(long long int x) {
-  if (unlikely(!reserve())) {
-    return on_error();
-  }
-  current_ptr_ = print_int(current_ptr_, x);
-  return *this;
-}
-
-StringBuilder &StringBuilder::operator<<(long long unsigned int x) {
-  if (unlikely(!reserve())) {
-    return on_error();
-  }
-  current_ptr_ = print_uint(current_ptr_, x);
-  return *this;
-}
-
-StringBuilder &StringBuilder::operator<<(FixedDouble x) {
-  if (unlikely(!reserve(std::numeric_limits<double>::max_exponent10 + x.precision + 4))) {
-    return on_error();
-  }
-
-  static TD_THREAD_LOCAL std::stringstream *ss;
-  if (init_thread_local<std::stringstream>(ss)) {
-    auto previous_locale = ss->imbue(std::locale::classic());
-    ss->setf(std::ios_base::fixed, std::ios_base::floatfield);
-  } else {
-    ss->str(std::string());
-    ss->clear();
-  }
-  ss->precision(x.precision);
-  *ss << x.d;
-
-  auto len = narrow_cast<int>(static_cast<std::streamoff>(ss->tellp()));
-  auto left = end_ptr_ + RESERVED_SIZE - current_ptr_;
-  if (unlikely(len >= left)) {
-    error_flag_ = true;
-    len = left ? narrow_cast<int>(left - 1) : 0;
-  }
-  ss->read(current_ptr_, len);
-  current_ptr_ += len;
-  return *this;
-}
-
-StringBuilder &StringBuilder::operator<<(const void *ptr) {
-  if (unlikely(!reserve())) {
-    return on_error();
-  }
-  current_ptr_ += std::snprintf(current_ptr_, RESERVED_SIZE, "%p", ptr);
-  return *this;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/StringBuilder.h b/third-party/td/td/tdutils/td/utils/StringBuilder.h
deleted file mode 100644
index b11ae44d4c..0000000000
--- a/third-party/td/td/tdutils/td/utils/StringBuilder.h
+++ /dev/null
@@ -1,203 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StackAllocator.h"
-
-#include <cstdlib>
-#include <memory>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-class StringBuilder {
- public:
-  explicit StringBuilder(MutableSlice slice, bool use_buffer = false);
-
-  StringBuilder() : StringBuilder({}, true) {
-  }
-
-  void clear() {
-    current_ptr_ = begin_ptr_;
-    error_flag_ = false;
-  }
-
-  void pop_back() {
-    CHECK(current_ptr_ > begin_ptr_);
-    current_ptr_--;
-  }
-
-  void push_back(char c) {
-    if (unlikely(end_ptr_ <= current_ptr_)) {
-      if (!reserve_inner(RESERVED_SIZE)) {
-        error_flag_ = true;
-        return;
-      }
-    }
-    *current_ptr_++ = c;
-  }
-
-  void append_char(size_t count, char c);
-
-  MutableCSlice as_cslice() {
-    if (current_ptr_ >= end_ptr_ + RESERVED_SIZE) {
-      std::abort();  // shouldn't happen
-    }
-    *current_ptr_ = 0;
-    return MutableCSlice(begin_ptr_, current_ptr_);
-  }
-
-  size_t size() {
-    return static_cast<size_t>(current_ptr_ - begin_ptr_);
-  }
-
-  bool is_error() const {
-    return error_flag_;
-  }
-
-  template <class T>
-  std::enable_if_t<std::is_same<char *, std::remove_const_t<T>>::value, StringBuilder> &operator<<(T str) {
-    return *this << Slice(str);
-  }
-  template <class T>
-  std::enable_if_t<std::is_same<const char *, std::remove_const_t<T>>::value, StringBuilder> &operator<<(T str) {
-    return *this << Slice(str);
-  }
-
-  template <size_t N>
-  StringBuilder &operator<<(char (&str)[N]) = delete;
-
-  template <size_t N>
-  StringBuilder &operator<<(const char (&str)[N]) {
-    return *this << Slice(str, N - 1);
-  }
-
-  StringBuilder &operator<<(const wchar_t *str) = delete;
-
-  StringBuilder &operator<<(Slice slice);
-
-  StringBuilder &operator<<(bool b) {
-    return *this << (b ? Slice("true") : Slice("false"));
-  }
-
-  StringBuilder &operator<<(char c) {
-    if (unlikely(!reserve())) {
-      return on_error();
-    }
-    *current_ptr_++ = c;
-    return *this;
-  }
-
-  StringBuilder &operator<<(unsigned char c) {
-    return *this << static_cast<unsigned int>(c);
-  }
-
-  StringBuilder &operator<<(signed char c) {
-    return *this << static_cast<int>(c);
-  }
-
-  StringBuilder &operator<<(int x);
-
-  StringBuilder &operator<<(unsigned int x);
-
-  StringBuilder &operator<<(long int x);
-
-  StringBuilder &operator<<(long unsigned int x);
-
-  StringBuilder &operator<<(long long int x);
-
-  StringBuilder &operator<<(long long unsigned int x);
-
-  struct FixedDouble {
-    double d;
-    int precision;
-
-    FixedDouble(double d, int precision) : d(d), precision(precision) {
-    }
-  };
-  StringBuilder &operator<<(FixedDouble x);
-
-  StringBuilder &operator<<(double x) {
-    return *this << FixedDouble(x, 6);
-  }
-
-  StringBuilder &operator<<(const void *ptr);
-
-  template <class A, class B>
-  StringBuilder &operator<<(const std::pair<A, B> &p) {
-    return *this << '[' << p.first << ';' << p.second << ']';
-  }
-
-  template <class T>
-  StringBuilder &operator<<(const vector<T> &v) {
-    *this << '{';
-    if (!v.empty()) {
-      *this << v[0];
-      size_t len = v.size();
-      for (size_t i = 1; i < len; i++) {
-        *this << ", " << v[i];
-      }
-    }
-    return *this << '}';
-  }
-
-  StringBuilder &operator<<(const vector<bool> &v) {
-    *this << '{';
-    if (!v.empty()) {
-      *this << v[0];
-      size_t len = v.size();
-      for (size_t i = 1; i < len; i++) {
-        *this << ", " << static_cast<bool>(v[i]);
-      }
-    }
-    return *this << '}';
-  }
-
- private:
-  char *begin_ptr_;
-  char *current_ptr_;
-  char *end_ptr_;
-  bool error_flag_ = false;
-  bool use_buffer_ = false;
-  std::unique_ptr<char[]> buffer_;
-  static constexpr size_t RESERVED_SIZE = 30;
-
-  StringBuilder &on_error() {
-    error_flag_ = true;
-    return *this;
-  }
-
-  bool reserve() {
-    if (end_ptr_ > current_ptr_) {
-      return true;
-    }
-    return reserve_inner(RESERVED_SIZE);
-  }
-
-  bool reserve(size_t size) {
-    if (end_ptr_ > current_ptr_ && static_cast<size_t>(end_ptr_ - current_ptr_) >= size) {
-      return true;
-    }
-    return reserve_inner(size);
-  }
-  bool reserve_inner(size_t size);
-};
-
-template <class T>
-std::enable_if_t<std::is_arithmetic<T>::value && !std::is_same<std::decay_t<T>, bool>::value, string> to_string(
-    const T &x) {
-  const size_t buf_size = 1000;
-  auto buf = StackAllocator::alloc(buf_size);
-  StringBuilder sb(buf.as_slice());
-  sb << x;
-  return sb.as_cslice().str();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ThreadLocalStorage.h b/third-party/td/td/tdutils/td/utils/ThreadLocalStorage.h
deleted file mode 100644
index cb543c11e8..0000000000
--- a/third-party/td/td/tdutils/td/utils/ThreadLocalStorage.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/port/thread_local.h"
-
-#include <array>
-#include <atomic>
-
-namespace td {
-
-template <class T>
-class ThreadLocalStorage {
- public:
-  T &get() {
-    return thread_local_node().value;
-  }
-
-  template <class F>
-  void for_each(F &&f) {
-    int32 n = max_thread_id_.load();
-    for (int32 i = 0; i < n; i++) {
-      f(nodes_[i].value);
-    }
-  }
-  template <class F>
-  void for_each(F &&f) const {
-    int32 n = max_thread_id_.load();
-    for (int32 i = 0; i < n; i++) {
-      f(nodes_[i].value);
-    }
-  }
-
- private:
-  struct Node {
-    T value;
-    char padding[TD_CONCURRENCY_PAD];
-  };
-  static constexpr int32 MAX_THREAD_ID = 128;
-  std::atomic<int32> max_thread_id_{MAX_THREAD_ID};
-  std::array<Node, MAX_THREAD_ID> nodes_;
-
-  Node &thread_local_node() {
-    auto thread_id = get_thread_id();
-    CHECK(0 <= thread_id && static_cast<size_t>(thread_id) < nodes_.size());
-    return nodes_[thread_id];
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/ThreadSafeCounter.h b/third-party/td/td/tdutils/td/utils/ThreadSafeCounter.h
deleted file mode 100644
index 83b964ff73..0000000000
--- a/third-party/td/td/tdutils/td/utils/ThreadSafeCounter.h
+++ /dev/null
@@ -1,132 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/ThreadLocalStorage.h"
-
-#include <array>
-#include <atomic>
-#include <mutex>
-
-namespace td {
-
-template <size_t N>
-class ThreadSafeMultiCounter {
- public:
-  void add(size_t index, int64 diff) {
-    CHECK(index < N);
-    tls_.get()[index].fetch_add(diff, std::memory_order_relaxed);
-  }
-
-  int64 sum(size_t index) const {
-    CHECK(index < N);
-    int64 res = 0;
-    tls_.for_each([&res, &index](auto &value) { res += value[index].load(std::memory_order_relaxed); });
-    return res;
-  }
-  void clear() {
-    tls_.for_each([](auto &value) {
-      for (auto &x : value) {
-        x = 0;
-      }
-    });
-  }
-
- private:
-  ThreadLocalStorage<std::array<std::atomic<int64>, N>> tls_;
-};
-
-class ThreadSafeCounter {
- public:
-  void add(int64 diff) {
-    counter_.add(0, diff);
-  }
-
-  int64 sum() const {
-    return counter_.sum(0);
-  }
-
-  void clear() {
-    counter_.clear();
-  }
-
- private:
-  ThreadSafeMultiCounter<1> counter_;
-};
-
-class NamedThreadSafeCounter {
-  static constexpr size_t N = 128;
-  using Counter = ThreadSafeMultiCounter<N>;
-
- public:
-  class CounterRef {
-   public:
-    CounterRef() = default;
-    CounterRef(size_t index, Counter *counter) : index_(index), counter_(counter) {
-    }
-    void add(int64 diff) {
-      counter_->add(index_, diff);
-    }
-    int64 sum() const {
-      return counter_->sum(index_);
-    }
-
-   private:
-    size_t index_{0};
-    Counter *counter_{nullptr};
-  };
-
-  CounterRef get_counter(Slice name) {
-    std::unique_lock<std::mutex> guard(mutex_);
-    for (size_t i = 0; i < names_.size(); i++) {
-      if (names_[i] == name) {
-        return get_counter_ref(i);
-      }
-    }
-    CHECK(names_.size() < N);
-    names_.emplace_back(name.begin(), name.size());
-    return get_counter_ref(names_.size() - 1);
-  }
-
-  CounterRef get_counter_ref(size_t index) {
-    return CounterRef(index, &counter_);
-  }
-
-  static NamedThreadSafeCounter &get_default() {
-    static NamedThreadSafeCounter res;
-    return res;
-  }
-
-  template <class F>
-  void for_each(F &&f) const {
-    std::unique_lock<std::mutex> guard(mutex_);
-    for (size_t i = 0; i < names_.size(); i++) {
-      f(names_[i], counter_.sum(i));
-    }
-  }
-
-  void clear() {
-    std::unique_lock<std::mutex> guard(mutex_);
-    counter_.clear();
-  }
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const NamedThreadSafeCounter &counter) {
-    counter.for_each([&sb](Slice name, int64 cnt) { sb << name << ": " << cnt << "\n"; });
-    return sb;
-  }
-
- private:
-  mutable std::mutex mutex_;
-  std::vector<std::string> names_;
-
-  Counter counter_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Time.cpp b/third-party/td/td/tdutils/td/utils/Time.cpp
deleted file mode 100644
index bbcd0ba09a..0000000000
--- a/third-party/td/td/tdutils/td/utils/Time.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/Time.h"
-
-#include "td/utils/port/Clocks.h"
-
-#include <atomic>
-#include <cmath>
-
-namespace td {
-
-bool operator==(Timestamp a, Timestamp b) {
-  return std::abs(a.at() - b.at()) < 1e-6;
-}
-
-static std::atomic<double> time_diff;
-
-double Time::now() {
-  auto result = now_unadjusted() + time_diff.load(std::memory_order_relaxed);
-  while (result < 0) {
-    auto old_time_diff = time_diff.load();
-    time_diff.compare_exchange_strong(old_time_diff, old_time_diff - result);
-    result = now_unadjusted() + time_diff.load(std::memory_order_relaxed);
-  }
-  return result;
-}
-
-double Time::now_unadjusted() {
-  return Clocks::monotonic();
-}
-
-void Time::jump_in_future(double at) {
-  while (true) {
-    auto old_time_diff = time_diff.load();
-    auto diff = at - now();
-    if (diff < 0) {
-      return;
-    }
-    if (time_diff.compare_exchange_strong(old_time_diff, old_time_diff + diff)) {
-      return;
-    }
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Time.h b/third-party/td/td/tdutils/td/utils/Time.h
deleted file mode 100644
index 3429438d63..0000000000
--- a/third-party/td/td/tdutils/td/utils/Time.h
+++ /dev/null
@@ -1,106 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-class Time {
- public:
-  static double now();
-  static double now_cached() {
-    // Temporary(?) use now in now_cached
-    // Problem:
-    //   thread A: check that now() > timestamp and notifies thread B
-    //   thread B: must see that now() > timestamp()
-    //
-    //   now() and now_cached() must be monotonic
-    //
-    //   if a=now[_cached]() happens before b=now[_cached] than
-    //     a <= b
-    //
-    // As an alternative we may say that now_cached is a thread local copy of now
-    return now();
-  }
-  static double now_unadjusted();
-
-  // Used for testing. After jump_in_future(at) is called, now() >= at.
-  static void jump_in_future(double at);
-};
-
-inline void relax_timeout_at(double *timeout, double new_timeout) {
-  if (new_timeout == 0) {
-    return;
-  }
-  if (*timeout == 0 || new_timeout < *timeout) {
-    *timeout = new_timeout;
-  }
-}
-
-class Timestamp {
- public:
-  Timestamp() = default;
-  static Timestamp never() {
-    return Timestamp{};
-  }
-  static Timestamp now() {
-    return Timestamp{Time::now()};
-  }
-  static Timestamp now_cached() {
-    return Timestamp{Time::now_cached()};
-  }
-  static Timestamp at(double timeout) {
-    return Timestamp{timeout};
-  }
-
-  static Timestamp in(double timeout, Timestamp now = now_cached()) {
-    return Timestamp{now.at() + timeout};
-  }
-
-  bool is_in_past(Timestamp now) const {
-    return at_ <= now.at();
-  }
-  bool is_in_past() const {
-    return is_in_past(now_cached());
-  }
-
-  explicit operator bool() const noexcept {
-    return at_ > 0;
-  }
-
-  double at() const {
-    return at_;
-  }
-
-  double in() const {
-    return at_ - Time::now_cached();
-  }
-
-  void relax(const Timestamp &timeout) {
-    if (!timeout) {
-      return;
-    }
-    if (!*this || at_ > timeout.at_) {
-      at_ = timeout.at_;
-    }
-  }
-
-  friend bool operator==(Timestamp a, Timestamp b);
-
- private:
-  double at_{0};
-
-  explicit Timestamp(double timeout) : at_(timeout) {
-  }
-};
-
-inline bool operator<(const Timestamp &a, const Timestamp &b) {
-  return a.at() < b.at();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TimedStat.h b/third-party/td/td/tdutils/td/utils/TimedStat.h
deleted file mode 100644
index 642db05864..0000000000
--- a/third-party/td/td/tdutils/td/utils/TimedStat.h
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/optional.h"
-
-#include <functional>
-#include <utility>
-
-namespace td {
-
-template <class StatT>
-class TimedStat {
- public:
-  TimedStat(double duration, double now)
-      : duration_(duration), current_(), current_timestamp_(now - 1), next_(), next_timestamp_(now) {
-  }
-  TimedStat() : TimedStat(0, 0) {
-  }
-  template <class EventT>
-  void add_event(const EventT &e, double now) {
-    update(now);
-    current_.on_event(e);
-    next_.on_event(e);
-  }
-  const StatT &get_stat(double now) {
-    update(now);
-    return current_;
-  }
-  std::pair<StatT, double> stat_duration(double now) {
-    update(now);
-    return std::make_pair(current_, now - current_timestamp_);
-  }
-  void clear_events() {
-    current_.clear();
-    next_.clear();
-  }
-
- private:
-  double duration_;
-  StatT current_;
-  double current_timestamp_;
-  StatT next_;
-  double next_timestamp_;
-
-  void update(double &now) {
-    if (now < next_timestamp_) {
-      // LOG_CHECK(now >= next_timestamp_ * (1 - 1e-14)) << now << " " << next_timestamp_;
-      now = next_timestamp_;
-    }
-    if (duration_ == 0) {
-      return;
-    }
-    if (next_timestamp_ + 2 * duration_ < now) {
-      current_ = StatT();
-      current_timestamp_ = now - duration_;
-      next_ = StatT();
-      next_timestamp_ = now;
-    } else if (next_timestamp_ + duration_ < now) {
-      current_ = next_;
-      current_timestamp_ = next_timestamp_;
-      next_ = StatT();
-      next_timestamp_ = now;
-    }
-  }
-};
-
-namespace detail {
-template <class T, class Cmp>
-struct MinMaxStat {
-  using Event = T;
-  void on_event(Event event) {
-    if (!best_ || Cmp()(event, best_.value())) {
-      best_ = event;
-    }
-  }
-  optional<T> get_stat() const {
-    return best_.copy();
-  }
-
- private:
-  optional<T> best_;
-};
-}  // namespace detail
-
-template <class T>
-using MinStat = detail::MinMaxStat<T, std::less<void>>;
-
-template <class T>
-using MaxStat = detail::MinMaxStat<T, std::greater<void>>;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Timer.cpp b/third-party/td/td/tdutils/td/utils/Timer.cpp
deleted file mode 100644
index 98e523892e..0000000000
--- a/third-party/td/td/tdutils/td/utils/Timer.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/Timer.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/Time.h"
-
-namespace td {
-
-Timer::Timer(bool is_paused) {
-  if (!is_paused) {
-    resume();
-  }
-}
-
-void Timer::pause() {
-  if (is_paused_) {
-    return;
-  }
-  elapsed_ += Time::now() - start_time_;
-  is_paused_ = true;
-}
-
-void Timer::resume() {
-  if (!is_paused_) {
-    return;
-  }
-  start_time_ = Time::now();
-  is_paused_ = false;
-}
-
-double Timer::elapsed() const {
-  double res = elapsed_;
-  if (!is_paused_) {
-    res += Time::now() - start_time_;
-  }
-  return res;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const Timer &timer) {
-  return string_builder << " in " << format::as_time(timer.elapsed());
-}
-
-PerfWarningTimer::PerfWarningTimer(string name, double max_duration)
-    : name_(std::move(name)), start_at_(Time::now()), max_duration_(max_duration) {
-}
-
-PerfWarningTimer::PerfWarningTimer(PerfWarningTimer &&other) noexcept
-    : name_(std::move(other.name_)), start_at_(other.start_at_), max_duration_(other.max_duration_) {
-  other.start_at_ = 0;
-}
-
-PerfWarningTimer::~PerfWarningTimer() {
-  reset();
-}
-
-void PerfWarningTimer::reset() {
-  if (start_at_ == 0) {
-    return;
-  }
-  double duration = Time::now() - start_at_;
-  LOG_IF(WARNING, duration > max_duration_)
-      << "SLOW: " << tag("name", name_) << tag("duration", format::as_time(duration));
-  start_at_ = 0;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Timer.h b/third-party/td/td/tdutils/td/utils/Timer.h
deleted file mode 100644
index ffce64b61a..0000000000
--- a/third-party/td/td/tdutils/td/utils/Timer.h
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-class Timer {
- public:
-  Timer() : Timer(false) {
-  }
-  explicit Timer(bool is_paused);
-
-  double elapsed() const;
-
-  void pause();
-
-  void resume();
-
- private:
-  friend StringBuilder &operator<<(StringBuilder &string_builder, const Timer &timer);
-
-  double elapsed_{0};
-  double start_time_{0};
-  bool is_paused_{true};
-};
-
-class PerfWarningTimer {
- public:
-  explicit PerfWarningTimer(string name, double max_duration = 0.1);
-  PerfWarningTimer(const PerfWarningTimer &) = delete;
-  PerfWarningTimer &operator=(const PerfWarningTimer &) = delete;
-  PerfWarningTimer(PerfWarningTimer &&other) noexcept;
-  PerfWarningTimer &operator=(PerfWarningTimer &&) = delete;
-  ~PerfWarningTimer();
-  void reset();
-
- private:
-  string name_;
-  double start_at_{0};
-  double max_duration_{0};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TlDowncastHelper.h b/third-party/td/td/tdutils/td/utils/TlDowncastHelper.h
deleted file mode 100644
index 03953027de..0000000000
--- a/third-party/td/td/tdutils/td/utils/TlDowncastHelper.h
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/TlStorerToString.h"
-
-namespace td {
-
-template <class T>
-class TlDowncastHelper final : public T {
- public:
-  explicit TlDowncastHelper(int32 constructor) : constructor_(constructor) {
-  }
-  int32 get_id() const final {
-    return constructor_;
-  }
-  void store(TlStorerToString &s, const char *field_name) const final {
-  }
-
- private:
-  int32 constructor_{0};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TlStorerToString.h b/third-party/td/td/tdutils/td/utils/TlStorerToString.h
deleted file mode 100644
index d5e4481a8f..0000000000
--- a/third-party/td/td/tdutils/td/utils/TlStorerToString.h
+++ /dev/null
@@ -1,152 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/UInt.h"
-
-namespace td {
-
-class TlStorerToString {
-  decltype(StackAllocator::alloc(0)) buffer_ = StackAllocator::alloc(1 << 14);
-  StringBuilder sb_ = StringBuilder(buffer_.as_slice(), true);
-  size_t shift_ = 0;
-
-  void store_field_begin(Slice name) {
-    sb_.append_char(shift_, ' ');
-    if (!name.empty()) {
-      sb_ << name << " = ";
-    }
-  }
-
-  void store_field_end() {
-    sb_.push_back('\n');
-  }
-
-  void store_binary(Slice data) {
-    static const char *hex = "0123456789ABCDEF";
-
-    sb_ << "{ ";
-    for (auto c : data) {
-      unsigned char byte = c;
-      sb_.push_back(hex[byte >> 4]);
-      sb_.push_back(hex[byte & 15]);
-      sb_.push_back(' ');
-    }
-    sb_.push_back('}');
-  }
-
- public:
-  TlStorerToString() = default;
-  TlStorerToString(const TlStorerToString &) = delete;
-  TlStorerToString &operator=(const TlStorerToString &) = delete;
-  TlStorerToString(TlStorerToString &&) = delete;
-  TlStorerToString &operator=(TlStorerToString &&) = delete;
-
-  void store_field(Slice name, const string &value) {
-    store_field_begin(name);
-    sb_.push_back('"');
-    sb_ << value;
-    sb_.push_back('"');
-    store_field_end();
-  }
-
-  void store_field(Slice name, const SecureString &value) {
-    store_field_begin(name);
-    sb_ << "<secret>";
-    store_field_end();
-  }
-
-  template <class T>
-  void store_field(Slice name, const T &value) {
-    store_field_begin(name);
-    sb_ << value;
-    store_field_end();
-  }
-
-  void store_bytes_field(Slice name, const SecureString &value) {
-    store_field_begin(name);
-    sb_ << "<secret>";
-    store_field_end();
-  }
-
-  template <class BytesT>
-  void store_bytes_field(Slice name, const BytesT &value) {
-    static const char *hex = "0123456789ABCDEF";
-
-    store_field_begin(name);
-    sb_ << "bytes [" << value.size() << "] { ";
-    size_t len = min(static_cast<size_t>(64), value.size());
-    for (size_t i = 0; i < len; i++) {
-      int b = value[static_cast<int>(i)] & 0xff;
-      sb_.push_back(hex[b >> 4]);
-      sb_.push_back(hex[b & 15]);
-      sb_.push_back(' ');
-    }
-    if (len < value.size()) {
-      sb_ << "...";
-    }
-    sb_.push_back('}');
-    store_field_end();
-  }
-
-  template <class ObjectT>
-  void store_object_field(CSlice name, const ObjectT *value) {
-    if (value == nullptr) {
-      store_field(name, Slice("null"));
-    } else {
-      value->store(*this, name.c_str());
-    }
-  }
-
-  void store_field(Slice name, const UInt128 &value) {
-    store_field_begin(name);
-    store_binary(as_slice(value));
-    store_field_end();
-  }
-
-  void store_field(Slice name, const UInt256 &value) {
-    store_field_begin(name);
-    store_binary(as_slice(value));
-    store_field_end();
-  }
-
-  void store_field(Slice name, const UInt512 &value) {
-    store_field_begin(name);
-    store_binary(as_slice(value));
-    store_field_end();
-  }
-
-  void store_vector_begin(Slice field_name, size_t vector_size) {
-    store_field_begin(field_name);
-    sb_ << "vector[" << vector_size << "] {\n";
-    shift_ += 2;
-  }
-
-  void store_class_begin(const char *field_name, Slice class_name) {
-    store_field_begin(Slice(field_name));
-    sb_ << class_name << " {\n";
-    shift_ += 2;
-  }
-
-  void store_class_end() {
-    CHECK(shift_ >= 2);
-    shift_ -= 2;
-    sb_.append_char(shift_, ' ');
-    sb_ << "}\n";
-  }
-
-  string move_as_string() {
-    return sb_.as_cslice().str();
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TsCerr.cpp b/third-party/td/td/tdutils/td/utils/TsCerr.cpp
deleted file mode 100644
index e193c1d232..0000000000
--- a/third-party/td/td/tdutils/td/utils/TsCerr.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/TsCerr.h"
-
-#include "td/utils/ExitGuard.h"
-#include "td/utils/port/StdStreams.h"
-#include "td/utils/Time.h"
-
-#include <cerrno>
-
-namespace td {
-
-std::atomic_flag TsCerr::lock_ = ATOMIC_FLAG_INIT;
-
-TsCerr::TsCerr() {
-  enterCritical();
-}
-
-TsCerr::~TsCerr() {
-  exitCritical();
-}
-
-TsCerr &TsCerr::operator<<(Slice slice) {
-  auto &fd = Stderr();
-  if (fd.empty()) {
-    return *this;
-  }
-  double end_time = 0;
-  while (!slice.empty()) {
-    auto res = fd.write(slice);
-    if (res.is_error()) {
-      if (res.error().code() == EPIPE) {
-        break;
-      }
-      // Resource temporary unavailable
-      if (end_time == 0) {
-        end_time = Time::now() + 0.01;
-      } else if (Time::now() > end_time) {
-        break;
-      }
-      continue;
-    }
-    slice.remove_prefix(res.ok());
-  }
-  return *this;
-}
-
-void TsCerr::enterCritical() {
-  while (lock_.test_and_set(std::memory_order_acquire) && !ExitGuard::is_exited()) {
-    // spin
-  }
-}
-
-void TsCerr::exitCritical() {
-  lock_.clear(std::memory_order_release);
-}
-
-static ExitGuard exit_guard;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TsCerr.h b/third-party/td/td/tdutils/td/utils/TsCerr.h
deleted file mode 100644
index eb9d8d0931..0000000000
--- a/third-party/td/td/tdutils/td/utils/TsCerr.h
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-
-#include <atomic>
-
-namespace td {
-
-class TsCerr {
- public:
-  TsCerr();
-  TsCerr(const TsCerr &) = delete;
-  TsCerr &operator=(const TsCerr &) = delete;
-  TsCerr(TsCerr &&) = delete;
-  TsCerr &operator=(TsCerr &&) = delete;
-  ~TsCerr();
-
-  TsCerr &operator<<(Slice slice);
-
- private:
-  static std::atomic_flag lock_;
-
-  static void enterCritical();
-  static void exitCritical();
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TsFileLog.cpp b/third-party/td/td/tdutils/td/utils/TsFileLog.cpp
deleted file mode 100644
index fb0ac7cdbe..0000000000
--- a/third-party/td/td/tdutils/td/utils/TsFileLog.cpp
+++ /dev/null
@@ -1,106 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/TsFileLog.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FileLog.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <array>
-#include <atomic>
-#include <limits>
-#include <mutex>
-
-namespace td {
-
-namespace detail {
-class TsFileLog final : public LogInterface {
- public:
-  Status init(string path, int64 rotate_threshold, bool redirect_stderr) {
-    path_ = std::move(path);
-    rotate_threshold_ = rotate_threshold;
-    redirect_stderr_ = redirect_stderr;
-    for (size_t i = 0; i < logs_.size(); i++) {
-      logs_[i].id = i;
-    }
-    return init_info(&logs_[0]);
-  }
-
-  void rotate() {
-    for (auto &info : logs_) {
-      if (info.is_inited.load(std::memory_order_acquire)) {
-        info.log.lazy_rotate();
-      }
-    }
-  }
-
- private:
-  struct Info {
-    FileLog log;
-    std::atomic<bool> is_inited{false};
-    size_t id;
-  };
-
-  static constexpr size_t MAX_THREAD_ID = 128;
-  int64 rotate_threshold_ = 0;
-  bool redirect_stderr_ = false;
-  std::string path_;
-  std::array<Info, MAX_THREAD_ID> logs_;
-  std::mutex init_mutex_;
-
-  LogInterface *get_current_logger() {
-    auto *info = get_current_info();
-    if (!info->is_inited.load(std::memory_order_relaxed)) {
-      std::unique_lock<std::mutex> lock(init_mutex_);
-      if (!info->is_inited.load(std::memory_order_relaxed)) {
-        init_info(info).ensure();
-      }
-    }
-    return &info->log;
-  }
-
-  Info *get_current_info() {
-    return &logs_[get_thread_id()];
-  }
-
-  Status init_info(Info *info) {
-    TRY_STATUS(info->log.init(get_path(info), std::numeric_limits<int64>::max(), info->id == 0 && redirect_stderr_));
-    info->is_inited = true;
-    return Status::OK();
-  }
-
-  string get_path(const Info *info) const {
-    if (info->id == 0) {
-      return path_;
-    }
-    return PSTRING() << path_ << ".thread" << info->id << ".log";
-  }
-
-  void do_append(int log_level, CSlice slice) final {
-    get_current_logger()->do_append(log_level, slice);
-  }
-
-  vector<string> get_file_paths() final {
-    vector<string> res;
-    for (auto &log : logs_) {
-      res.push_back(get_path(&log));
-    }
-    return res;
-  }
-};
-}  // namespace detail
-
-Result<unique_ptr<LogInterface>> TsFileLog::create(string path, int64 rotate_threshold, bool redirect_stderr) {
-  auto res = make_unique<detail::TsFileLog>();
-  TRY_STATUS(res->init(std::move(path), rotate_threshold, redirect_stderr));
-  return std::move(res);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TsFileLog.h b/third-party/td/td/tdutils/td/utils/TsFileLog.h
deleted file mode 100644
index 370054df77..0000000000
--- a/third-party/td/td/tdutils/td/utils/TsFileLog.h
+++ /dev/null
@@ -1,23 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class TsFileLog {
-  static constexpr int64 DEFAULT_ROTATE_THRESHOLD = 10 * (1 << 20);
-
- public:
-  static Result<unique_ptr<LogInterface>> create(string path, int64 rotate_threshold = DEFAULT_ROTATE_THRESHOLD,
-                                                 bool redirect_stderr = true);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TsList.h b/third-party/td/td/tdutils/td/utils/TsList.h
deleted file mode 100644
index cd06d76d2e..0000000000
--- a/third-party/td/td/tdutils/td/utils/TsList.h
+++ /dev/null
@@ -1,214 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/List.h"
-
-#include <mutex>
-
-namespace td {
-
-template <class DataT>
-class TsList;
-
-template <class DataT>
-class TsListNode : protected ListNode {
- public:
-  TsListNode() {
-    clear();
-  }
-  explicit TsListNode(DataT &&data) : data_(std::move(data)) {
-    clear();
-  }
-
-  ~TsListNode() {
-    remove();
-  }
-
-  std::unique_lock<std::mutex> lock() TD_WARN_UNUSED_RESULT;
-
-  TsListNode(const TsListNode &) = delete;
-  TsListNode &operator=(const TsListNode &) = delete;
-
-  TsListNode(TsListNode &&other) noexcept {
-    other.validate();
-    if (other.empty()) {
-      data_ = std::move(other.data_);
-      clear();
-    } else {
-      auto guard = other.lock();
-      init_from(std::move(other));
-    }
-    validate();
-    other.validate();
-  }
-
-  TsListNode &operator=(TsListNode &&other) noexcept {
-    validate();
-    if (this == &other) {
-      return *this;
-    }
-    other.validate();
-    remove();
-
-    if (other.empty()) {
-      data_ = std::move(other.data_);
-    } else {
-      auto guard = other.lock();
-      init_from(std::move(other));
-    }
-
-    validate();
-    other.validate();
-    return *this;
-  }
-
-  void validate() {
-    if (empty()) {
-      CHECK(ListNode::empty());
-    } else {
-      auto guard = lock();
-      CHECK(!ListNode::empty() || is_root);
-    }
-  }
-
-  void remove() {
-    validate();
-    if (is_root) {
-      CHECK(ListNode::empty());
-      return;
-    }
-    if (empty()) {
-      CHECK(ListNode::empty());
-      return;
-    }
-    {
-      auto guard = lock();
-      ListNode::remove();
-      if (!is_root) {
-        parent = nullptr;
-      }
-    }
-    validate();
-  }
-
-  void put(TsListNode *other) {
-    validate();
-    other->validate();
-    DCHECK(other->empty());
-    DCHECK(!empty());
-    DCHECK(!other->is_root);
-    {
-      auto guard = lock();
-      ListNode::put(other);
-      other->parent = parent;
-    }
-    validate();
-    other->validate();
-  }
-
-  void put_back(TsListNode *other) {
-    DCHECK(other->empty());
-    DCHECK(!empty());
-    DCHECK(!other->is_root);
-    auto guard = lock();
-    ListNode::put_back(other);
-    other->parent = parent;
-  }
-
-  bool empty() const {
-    return parent == nullptr;
-  }
-
-  TsListNode *get_next() {
-    return static_cast<TsListNode *>(next);
-  }
-  TsListNode *get_prev() {
-    return static_cast<TsListNode *>(prev);
-  }
-
-  DataT &get_data_unsafe() {
-    return data_;
-  }
-
- private:
-  TsList<DataT> *parent;
-  bool is_root{false};
-  DataT data_;
-
-  friend class TsList<DataT>;
-
-  void clear() {
-    ListNode::clear();
-    if (!is_root) {
-      parent = nullptr;
-    }
-  }
-
-  void init_from(TsListNode &&other) {
-    ListNode::init_from(std::move(other));
-    parent = other.parent;
-    other.parent = nullptr;
-    data_ = std::move(other.data_);
-  }
-};
-
-template <class DataT>
-class TsList final : public TsListNode<DataT> {
- public:
-  TsList() {
-    this->parent = this;
-    this->is_root = true;
-  }
-  TsList(const TsList &) = delete;
-  TsList &operator=(const TsList &) = delete;
-  TsList(TsList &&) = delete;
-  TsList &operator=(TsList &&) = delete;
-  ~TsList() {
-    auto guard = lock();
-    while (true) {
-      auto res = static_cast<TsListNode<DataT> *>(ListNode::get());
-      if (!res) {
-        break;
-      }
-      res->parent = nullptr;
-    }
-    this->parent = nullptr;
-  }
-  std::unique_lock<std::mutex> lock() TD_WARN_UNUSED_RESULT {
-    return std::unique_lock<std::mutex>(mutex_);
-  }
-  TsListNode<DataT> *begin() {
-    return this->get_next();
-  }
-  TsListNode<DataT> *end() {
-    return this;
-  }
-  TsListNode<DataT> *get() {
-    auto guard = lock();
-    auto res = static_cast<TsListNode<DataT> *>(ListNode::get());
-    if (res) {
-      res->parent = nullptr;
-    }
-    return res;
-  }
-
- private:
-  std::mutex mutex_;
-};
-
-template <class DataT>
-std::unique_lock<std::mutex> TsListNode<DataT>::lock() {
-  if (parent == nullptr) {
-    return {};
-  }
-  CHECK(parent != nullptr);
-  return parent->lock();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TsLog.cpp b/third-party/td/td/tdutils/td/utils/TsLog.cpp
deleted file mode 100644
index f332eec76e..0000000000
--- a/third-party/td/td/tdutils/td/utils/TsLog.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/TsLog.h"
-
-#include "td/utils/ExitGuard.h"
-
-namespace td {
-
-void TsLog::enter_critical() {
-  while (lock_.test_and_set(std::memory_order_acquire) && !ExitGuard::is_exited()) {
-    // spin
-  }
-}
-
-static ExitGuard exit_guard;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/TsLog.h b/third-party/td/td/tdutils/td/utils/TsLog.h
deleted file mode 100644
index 932fa69b2e..0000000000
--- a/third-party/td/td/tdutils/td/utils/TsLog.h
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-
-#include <atomic>
-
-namespace td {
-
-class TsLog final : public LogInterface {
- public:
-  explicit TsLog(LogInterface *log) : log_(log) {
-  }
-  void init(LogInterface *log) {
-    enter_critical();
-    log_ = log;
-    exit_critical();
-  }
-  void after_rotation() final {
-    enter_critical();
-    log_->after_rotation();
-    exit_critical();
-  }
-  vector<string> get_file_paths() final {
-    enter_critical();
-    auto result = log_->get_file_paths();
-    exit_critical();
-    return result;
-  }
-
- private:
-  void do_append(int log_level, CSlice slice) final {
-    enter_critical();
-    log_->do_append(log_level, slice);
-    exit_critical();
-  }
-
-  void enter_critical();
-
-  void exit_critical() {
-    lock_.clear(std::memory_order_release);
-  }
-
-  LogInterface *log_ = nullptr;
-  std::atomic_flag lock_ = ATOMIC_FLAG_INIT;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/UInt.h b/third-party/td/td/tdutils/td/utils/UInt.h
deleted file mode 100644
index fe688af085..0000000000
--- a/third-party/td/td/tdutils/td/utils/UInt.h
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-template <size_t size>
-struct UInt {
-  static_assert(size % 8 == 0, "size should be divisible by 8");
-  uint8 raw[size / 8];
-
-  Slice as_slice() const {
-    return Slice(raw, size / 8);
-  }
-
-  MutableSlice as_mutable_slice() {
-    return MutableSlice(raw, size / 8);
-  }
-
-  bool is_zero() const {
-    for (size_t i = 0; i < size / 8; i++) {
-      if (raw[i] != 0) {
-        return false;
-      }
-    }
-    return true;
-  }
-  void set_zero() {
-    for (size_t i = 0; i < size / 8; i++) {
-      raw[i] = 0;
-    }
-  }
-  static UInt zero() {
-    UInt v;
-    v.set_zero();
-    return v;
-  }
-};
-
-template <size_t size>
-bool operator==(const UInt<size> &a, const UInt<size> &b) {
-  return a.as_slice() == b.as_slice();
-}
-
-template <size_t size>
-bool operator!=(const UInt<size> &a, const UInt<size> &b) {
-  return !(a == b);
-}
-
-template <size_t size>
-UInt<size> operator^(const UInt<size> &a, const UInt<size> &b) {
-  UInt<size> res;
-  for (size_t i = 0; i < size / 8; i++) {
-    res.raw[i] = static_cast<uint8>(a.raw[i] ^ b.raw[i]);
-  }
-  return res;
-}
-
-template <size_t size>
-int get_kth_bit(const UInt<size> &a, uint32 bit) {
-  uint8 b = a.raw[bit / 8];
-  bit &= 7;
-  return (b >> (7 - bit)) & 1;
-}
-
-template <size_t size>
-Slice as_slice(const UInt<size> &value) {
-  return value.as_slice();
-}
-
-template <size_t size>
-MutableSlice as_mutable_slice(UInt<size> &value) {
-  return value.as_mutable_slice();
-}
-
-template <size_t size>
-bool operator<(const UInt<size> &a, const UInt<size> &b) {
-  return a.as_slice() < b.as_slice();
-}
-
-using UInt128 = UInt<128>;
-using UInt256 = UInt<256>;
-using UInt512 = UInt<512>;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/Variant.h b/third-party/td/td/tdutils/td/utils/Variant.h
deleted file mode 100644
index 2230695465..0000000000
--- a/third-party/td/td/tdutils/td/utils/Variant.h
+++ /dev/null
@@ -1,298 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-
-#include <new>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-namespace detail {
-
-template <size_t... Args>
-class MaxSizeImpl {};
-
-template <class T>
-constexpr const T &constexpr_max(const T &a, const T &b) {
-  return a < b ? b : a;
-}
-
-template <size_t Res, size_t X, size_t... Args>
-class MaxSizeImpl<Res, X, Args...> {
- public:
-  static constexpr size_t value = MaxSizeImpl<constexpr_max(Res, X), Args...>::value;
-};
-
-template <size_t Res>
-class MaxSizeImpl<Res> {
- public:
-  static constexpr size_t value = Res;
-};
-
-template <class... Args>
-class MaxSize {
- public:
-  static constexpr size_t value = MaxSizeImpl<0, sizeof(Args)...>::value;
-};
-
-template <size_t to_skip, class... Args>
-class IthTypeImpl {};
-template <class Res, class... Args>
-class IthTypeImpl<0, Res, Args...> {
- public:
-  using type = Res;
-};
-template <size_t pos, class Skip, class... Args>
-class IthTypeImpl<pos, Skip, Args...> : public IthTypeImpl<pos - 1, Args...> {};
-
-class Dummy {};
-
-template <size_t pos, class... Args>
-class IthType final : public IthTypeImpl<pos, Args..., Dummy> {};
-
-template <bool ok, int offset, class... Types>
-class FindTypeOffsetImpl {};
-
-template <int offset, class... Types>
-class FindTypeOffsetImpl<true, offset, Types...> {
- public:
-  static constexpr int value = offset;
-};
-template <int offset, class T, class S, class... Types>
-class FindTypeOffsetImpl<false, offset, T, S, Types...>
-    : public FindTypeOffsetImpl<std::is_same<T, S>::value, offset + 1, T, Types...> {};
-template <class T, class... Types>
-class FindTypeOffset final : public FindTypeOffsetImpl<false, -1, T, Types...> {};
-
-template <int offset, class... Types>
-class ForEachTypeImpl {};
-
-template <int offset>
-class ForEachTypeImpl<offset, Dummy> {
- public:
-  template <class F>
-  static void visit(F &&f) {
-  }
-};
-
-template <int offset, class T, class... Types>
-class ForEachTypeImpl<offset, T, Types...> {
- public:
-  template <class F>
-  static void visit(F &&f) {
-    f(offset, static_cast<T *>(nullptr));
-    ForEachTypeImpl<offset + 1, Types...>::visit(f);
-  }
-};
-
-template <class... Types>
-class ForEachType {
- public:
-  template <class F>
-  static void visit(F &&f) {
-    ForEachTypeImpl<0, Types..., Dummy>::visit(f);
-  }
-};
-
-}  // namespace detail
-
-template <class... Types>
-class Variant {
- public:
-  static constexpr int npos = -1;
-  Variant() {
-  }
-  Variant(Variant &&other) noexcept {
-    other.visit([&](auto &&value) { this->init_empty(std::forward<decltype(value)>(value)); });
-  }
-  Variant(const Variant &other) {
-    other.visit([&](auto &&value) { this->init_empty(std::forward<decltype(value)>(value)); });
-  }
-  Variant &operator=(Variant &&other) noexcept {
-    clear();
-    other.visit([&](auto &&value) { this->init_empty(std::forward<decltype(value)>(value)); });
-    return *this;
-  }
-  Variant &operator=(const Variant &other) {
-    if (this == &other) {
-      return *this;
-    }
-    clear();
-    other.visit([&](auto &&value) { this->init_empty(std::forward<decltype(value)>(value)); });
-    return *this;
-  }
-
-  bool operator==(const Variant &other) const {
-    if (offset_ != other.offset_) {
-      return false;
-    }
-    bool res = false;
-    for_each([&](int offset, auto *ptr) {
-      using T = std::decay_t<decltype(*ptr)>;
-      if (offset == offset_) {
-        res = this->get<T>() == other.template get<T>();
-      }
-    });
-    return res;
-  }
-  bool operator<(const Variant &other) const {
-    if (offset_ != other.offset_) {
-      return offset_ < other.offset_;
-    }
-    bool res = false;
-    for_each([&](int offset, auto *ptr) {
-      using T = std::decay_t<decltype(*ptr)>;
-      if (offset == offset_) {
-        res = this->get<T>() < other.template get<T>();
-      }
-    });
-    return res;
-  }
-
-  template <class T, std::enable_if_t<!std::is_same<std::decay_t<T>, Variant>::value, int> = 0>
-  Variant(T &&t) {
-    init_empty(std::forward<T>(t));
-  }
-  template <class T, std::enable_if_t<!std::is_same<std::decay_t<T>, Variant>::value, int> = 0>
-  Variant &operator=(T &&t) {
-    clear();
-    init_empty(std::forward<T>(t));
-    return *this;
-  }
-  template <class T>
-  static constexpr int offset() {
-    return detail::FindTypeOffset<std::decay_t<T>, Types...>::value;
-  }
-
-  template <class T>
-  void init_empty(T &&t) {
-    LOG_CHECK(offset_ == npos) << offset_
-#if TD_CLANG || TD_GCC
-                               << ' ' << __PRETTY_FUNCTION__
-#endif
-        ;
-    offset_ = offset<T>();
-    new (&get<T>()) std::decay_t<T>(std::forward<T>(t));
-  }
-  ~Variant() {
-    clear();
-  }
-
-  template <class F>
-  void visit(F &&f) {
-    for_each([&](int offset, auto *ptr) {
-      using T = std::decay_t<decltype(*ptr)>;
-      if (offset == offset_) {
-        f(std::move(*this->get_unsafe<T>()));
-      }
-    });
-  }
-  template <class F>
-  void for_each(F &&f) {
-    detail::ForEachType<Types...>::visit(f);
-  }
-  template <class F>
-  void visit(F &&f) const {
-    for_each([&](int offset, auto *ptr) {
-      using T = std::decay_t<decltype(*ptr)>;
-      if (offset == offset_) {
-        f(std::move(*this->get_unsafe<T>()));
-      }
-    });
-  }
-  template <class F>
-  void for_each(F &&f) const {
-    detail::ForEachType<Types...>::visit(f);
-  }
-
-  void clear() {
-    visit([](auto &&value) {
-      using T = std::decay_t<decltype(value)>;
-      value.~T();
-    });
-    offset_ = npos;
-  }
-
-  template <int offset>
-  auto &get() {
-    CHECK(offset == offset_);
-    return *get_unsafe<offset>();
-  }
-  template <class T>
-  auto &get() {
-    return get<offset<T>()>();
-  }
-
-  template <int offset>
-  const auto &get() const {
-    CHECK(offset == offset_);
-    return *get_unsafe<offset>();
-  }
-  template <class T>
-  const auto &get() const {
-    return get<offset<T>()>();
-  }
-
-  int32 get_offset() const {
-    return offset_;
-  }
-
-  bool empty() const {
-    return offset_ == npos;
-  }
-
- private:
-  union {
-    int64 align_;
-    char data_[detail::MaxSize<Types...>::value];
-  };
-  int offset_{npos};
-
-  template <class T>
-  auto *get_unsafe() {
-    return reinterpret_cast<T *>(data_);
-  }
-
-  template <int offset>
-  auto *get_unsafe() {
-    using T = typename detail::IthType<offset, Types...>::type;
-    return get_unsafe<T>();
-  }
-
-  template <class T>
-  const auto *get_unsafe() const {
-    return reinterpret_cast<const T *>(data_);
-  }
-
-  template <int offset>
-  const auto *get_unsafe() const {
-    using T = typename detail::IthType<offset, Types...>::type;
-    return get_unsafe<T>();
-  }
-};
-
-template <class T, class... Types>
-auto &get(Variant<Types...> &v) {
-  return v.template get<T>();
-}
-template <class T, class... Types>
-auto &get(const Variant<Types...> &v) {
-  return v.template get<T>();
-}
-template <int T, class... Types>
-auto &get(Variant<Types...> &v) {
-  return v.template get<T>();
-}
-template <int T, class... Types>
-auto &get(const Variant<Types...> &v) {
-  return v.template get<T>();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/VectorQueue.h b/third-party/td/td/tdutils/td/utils/VectorQueue.h
deleted file mode 100644
index 3607ac1c44..0000000000
--- a/third-party/td/td/tdutils/td/utils/VectorQueue.h
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Span.h"
-
-#include <utility>
-
-namespace td {
-
-template <class T>
-class VectorQueue {
- public:
-  template <class S>
-  void push(S &&s) {
-    vector_.emplace_back(std::forward<S>(s));
-  }
-
-  template <class... Args>
-  void emplace(Args &&...args) {
-    vector_.emplace_back(std::forward<Args>(args)...);
-  }
-
-  T pop() {
-    try_shrink();
-    return std::move(vector_[read_pos_++]);
-  }
-
-  template <class RndT>
-  T pop_rand(RndT &rnd) {
-    auto i = rnd() % size();
-    std::swap(vector_[i], vector_[read_pos_]);
-    return pop();
-  }
-
-  void pop_n(size_t n) {
-    read_pos_ += n;
-    try_shrink();
-  }
-
-  const T &front() const {
-    return vector_[read_pos_];
-  }
-  T &front() {
-    return vector_[read_pos_];
-  }
-
-  const T &back() const {
-    return vector_.back();
-  }
-  T &back() {
-    return vector_.back();
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
-  size_t size() const {
-    return vector_.size() - read_pos_;
-  }
-
-  const T *data() const {
-    return vector_.data() + read_pos_;
-  }
-  T *data() {
-    return vector_.data() + read_pos_;
-  }
-
-  Span<T> as_span() const {
-    return {data(), size()};
-  }
-  MutableSpan<T> as_mutable_span() {
-    return {vector_.data() + read_pos_, size()};
-  }
-
- private:
-  vector<T> vector_;
-  size_t read_pos_{0};
-
-  void try_shrink() {
-    if (read_pos_ * 2 > vector_.size() && read_pos_ > 4) {
-      vector_.erase(vector_.begin(), vector_.begin() + read_pos_);
-      read_pos_ = 0;
-    }
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/WaitFreeHashMap.h b/third-party/td/td/tdutils/td/utils/WaitFreeHashMap.h
deleted file mode 100644
index 592ac96d93..0000000000
--- a/third-party/td/td/tdutils/td/utils/WaitFreeHashMap.h
+++ /dev/null
@@ -1,190 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/HashTableUtils.h"
-
-#include <functional>
-
-namespace td {
-
-template <class KeyT, class ValueT, class HashT = Hash<KeyT>, class EqT = std::equal_to<KeyT>>
-class WaitFreeHashMap {
-  static constexpr size_t MAX_STORAGE_COUNT = 1 << 8;
-  static_assert((MAX_STORAGE_COUNT & (MAX_STORAGE_COUNT - 1)) == 0, "");
-  static constexpr uint32 DEFAULT_STORAGE_SIZE = 1 << 12;
-
-  FlatHashMap<KeyT, ValueT, HashT, EqT> default_map_;
-  struct WaitFreeStorage {
-    WaitFreeHashMap maps_[MAX_STORAGE_COUNT];
-  };
-  unique_ptr<WaitFreeStorage> wait_free_storage_;
-  uint32 hash_mult_ = 1;
-  uint32 max_storage_size_ = DEFAULT_STORAGE_SIZE;
-
-  uint32 get_wait_free_index(const KeyT &key) const {
-    return randomize_hash(HashT()(key) * hash_mult_) & (MAX_STORAGE_COUNT - 1);
-  }
-
-  WaitFreeHashMap &get_wait_free_storage(const KeyT &key) {
-    return wait_free_storage_->maps_[get_wait_free_index(key)];
-  }
-
-  const WaitFreeHashMap &get_wait_free_storage(const KeyT &key) const {
-    return wait_free_storage_->maps_[get_wait_free_index(key)];
-  }
-
-  void split_storage() {
-    CHECK(wait_free_storage_ == nullptr);
-    wait_free_storage_ = make_unique<WaitFreeStorage>();
-    uint32 next_hash_mult = hash_mult_ * 1000000007;
-    for (uint32 i = 0; i < MAX_STORAGE_COUNT; i++) {
-      auto &map = wait_free_storage_->maps_[i];
-      map.hash_mult_ = next_hash_mult;
-      map.max_storage_size_ = DEFAULT_STORAGE_SIZE + i * next_hash_mult % DEFAULT_STORAGE_SIZE;
-    }
-    for (auto &it : default_map_) {
-      get_wait_free_storage(it.first).set(it.first, std::move(it.second));
-    }
-    default_map_.clear();
-  }
-
- public:
-  void set(const KeyT &key, ValueT value) {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).set(key, std::move(value));
-    }
-
-    default_map_[key] = std::move(value);
-    if (default_map_.size() == max_storage_size_) {
-      split_storage();
-    }
-  }
-
-  ValueT get(const KeyT &key) const {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).get(key);
-    }
-
-    auto it = default_map_.find(key);
-    if (it == default_map_.end()) {
-      return {};
-    }
-    return it->second;
-  }
-
-  size_t count(const KeyT &key) const {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).count(key);
-    }
-
-    return default_map_.count(key);
-  }
-
-  // specialization for WaitFreeHashMap<..., unique_ptr<T>>
-  template <class T = ValueT>
-  typename T::element_type *get_pointer(const KeyT &key) {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).get_pointer(key);
-    }
-
-    auto it = default_map_.find(key);
-    if (it == default_map_.end()) {
-      return nullptr;
-    }
-    return it->second.get();
-  }
-
-  template <class T = ValueT>
-  const typename T::element_type *get_pointer(const KeyT &key) const {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).get_pointer(key);
-    }
-
-    auto it = default_map_.find(key);
-    if (it == default_map_.end()) {
-      return nullptr;
-    }
-    return it->second.get();
-  }
-
-  ValueT &operator[](const KeyT &key) {
-    if (wait_free_storage_ == nullptr) {
-      ValueT &result = default_map_[key];
-      if (default_map_.size() != max_storage_size_) {
-        return result;
-      }
-
-      split_storage();
-    }
-
-    return get_wait_free_storage(key)[key];
-  }
-
-  size_t erase(const KeyT &key) {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).erase(key);
-    }
-
-    return default_map_.erase(key);
-  }
-
-  void foreach(const std::function<void(const KeyT &key, ValueT &value)> &callback) {
-    if (wait_free_storage_ == nullptr) {
-      for (auto &it : default_map_) {
-        callback(it.first, it.second);
-      }
-      return;
-    }
-
-    for (auto &it : wait_free_storage_->maps_) {
-      it.foreach(callback);
-    }
-  }
-
-  void foreach(const std::function<void(const KeyT &key, const ValueT &value)> &callback) const {
-    if (wait_free_storage_ == nullptr) {
-      for (auto &it : default_map_) {
-        callback(it.first, it.second);
-      }
-      return;
-    }
-
-    for (auto &it : wait_free_storage_->maps_) {
-      it.foreach(callback);
-    }
-  }
-
-  size_t calc_size() const {
-    if (wait_free_storage_ == nullptr) {
-      return default_map_.size();
-    }
-
-    size_t result = 0;
-    for (size_t i = 0; i < MAX_STORAGE_COUNT; i++) {
-      result += wait_free_storage_->maps_[i].calc_size();
-    }
-    return result;
-  }
-
-  bool empty() const {
-    if (wait_free_storage_ == nullptr) {
-      return default_map_.empty();
-    }
-
-    for (size_t i = 0; i < MAX_STORAGE_COUNT; i++) {
-      if (!wait_free_storage_->maps_[i].empty()) {
-        return false;
-      }
-    }
-    return true;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/WaitFreeHashSet.h b/third-party/td/td/tdutils/td/utils/WaitFreeHashSet.h
deleted file mode 100644
index 68d1baabc0..0000000000
--- a/third-party/td/td/tdutils/td/utils/WaitFreeHashSet.h
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/HashTableUtils.h"
-
-#include <functional>
-
-namespace td {
-
-template <class KeyT, class HashT = Hash<KeyT>, class EqT = std::equal_to<KeyT>>
-class WaitFreeHashSet {
-  static constexpr size_t MAX_STORAGE_COUNT = 1 << 8;
-  static_assert((MAX_STORAGE_COUNT & (MAX_STORAGE_COUNT - 1)) == 0, "");
-  static constexpr uint32 DEFAULT_STORAGE_SIZE = 1 << 12;
-
-  FlatHashSet<KeyT, HashT, EqT> default_set_;
-  struct WaitFreeStorage {
-    WaitFreeHashSet sets_[MAX_STORAGE_COUNT];
-  };
-  unique_ptr<WaitFreeStorage> wait_free_storage_;
-  uint32 hash_mult_ = 1;
-  uint32 max_storage_size_ = DEFAULT_STORAGE_SIZE;
-
-  uint32 get_wait_free_index(const KeyT &key) const {
-    return randomize_hash(HashT()(key) * hash_mult_) & (MAX_STORAGE_COUNT - 1);
-  }
-
-  WaitFreeHashSet &get_wait_free_storage(const KeyT &key) {
-    return wait_free_storage_->sets_[get_wait_free_index(key)];
-  }
-
-  const WaitFreeHashSet &get_wait_free_storage(const KeyT &key) const {
-    return wait_free_storage_->sets_[get_wait_free_index(key)];
-  }
-
-  void split_storage() {
-    CHECK(wait_free_storage_ == nullptr);
-    wait_free_storage_ = make_unique<WaitFreeStorage>();
-    uint32 next_hash_mult = hash_mult_ * 1000000007;
-    for (uint32 i = 0; i < MAX_STORAGE_COUNT; i++) {
-      auto &set = wait_free_storage_->sets_[i];
-      set.hash_mult_ = next_hash_mult;
-      set.max_storage_size_ = DEFAULT_STORAGE_SIZE + i * next_hash_mult % DEFAULT_STORAGE_SIZE;
-    }
-    for (auto &it : default_set_) {
-      get_wait_free_storage(it).insert(it);
-    }
-    default_set_.clear();
-  }
-
- public:
-  bool insert(const KeyT &key) {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).insert(key);
-    }
-
-    auto result = default_set_.insert(key).second;
-    if (default_set_.size() == max_storage_size_) {
-      split_storage();
-    }
-    return result;
-  }
-
-  size_t count(const KeyT &key) const {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).count(key);
-    }
-
-    return default_set_.count(key);
-  }
-
-  size_t erase(const KeyT &key) {
-    if (wait_free_storage_ != nullptr) {
-      return get_wait_free_storage(key).erase(key);
-    }
-
-    return default_set_.erase(key);
-  }
-
-  void foreach(const std::function<void(const KeyT &key)> &callback) const {
-    if (wait_free_storage_ == nullptr) {
-      for (auto &it : default_set_) {
-        callback(it);
-      }
-      return;
-    }
-
-    for (auto &it : wait_free_storage_->sets_) {
-      it.foreach(callback);
-    }
-  }
-
-  KeyT get_random() const {
-    if (wait_free_storage_ != nullptr) {
-      for (size_t i = 0; i < MAX_STORAGE_COUNT; i++) {
-        if (!wait_free_storage_->sets_[i].empty()) {
-          return wait_free_storage_->sets_[i].get_random();
-        }
-      }
-      // no need to explicitly return KeyT()
-    }
-
-    if (default_set_.empty()) {
-      return KeyT();
-    }
-    return *default_set_.begin();
-  }
-
-  size_t calc_size() const {
-    if (wait_free_storage_ == nullptr) {
-      return default_set_.size();
-    }
-
-    size_t result = 0;
-    for (size_t i = 0; i < MAX_STORAGE_COUNT; i++) {
-      result += wait_free_storage_->sets_[i].calc_size();
-    }
-    return result;
-  }
-
-  bool empty() const {
-    if (wait_free_storage_ == nullptr) {
-      return default_set_.empty();
-    }
-
-    for (size_t i = 0; i < MAX_STORAGE_COUNT; i++) {
-      if (!wait_free_storage_->sets_[i].empty()) {
-        return false;
-      }
-    }
-    return true;
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/WaitFreeVector.h b/third-party/td/td/tdutils/td/utils/WaitFreeVector.h
deleted file mode 100644
index 70cb5b2066..0000000000
--- a/third-party/td/td/tdutils/td/utils/WaitFreeVector.h
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <utility>
-
-namespace td {
-
-template <class T>
-class WaitFreeVector {
-  static constexpr size_t MAX_VECTOR_SIZE = (1 << 15) - 10;
-
-  vector<vector<T>> storage_;
-
- public:
-  template <class... ArgsT>
-  void emplace_back(ArgsT &&...args) {
-    if (storage_.empty() || storage_.back().size() == MAX_VECTOR_SIZE) {
-      storage_.emplace_back();
-    }
-    storage_.back().emplace_back(std::forward<ArgsT>(args)...);
-  }
-
-  void pop_back() {
-    storage_.back().pop_back();
-    if (storage_.back().empty()) {
-      storage_.pop_back();
-    }
-  }
-
-  void push_back(T &&value) {
-    emplace_back(std::move(value));
-  }
-
-  void push_back(const T &value) {
-    emplace_back(value);
-  }
-
-  const T &back() const {
-    return storage_.back().back();
-  }
-
-  T &operator[](size_t index) {
-    return storage_[index / MAX_VECTOR_SIZE][index % MAX_VECTOR_SIZE];
-  }
-
-  const T &operator[](size_t index) const {
-    return storage_[index / MAX_VECTOR_SIZE][index % MAX_VECTOR_SIZE];
-  }
-
-  size_t size() const {
-    if (storage_.empty()) {
-      return 0;
-    }
-    return (storage_.size() - 1) * MAX_VECTOR_SIZE + storage_.back().size();
-  }
-
-  bool empty() const {
-    return storage_.empty();
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/algorithm.h b/third-party/td/td/tdutils/td/utils/algorithm.h
deleted file mode 100644
index a87de8ecb2..0000000000
--- a/third-party/td/td/tdutils/td/utils/algorithm.h
+++ /dev/null
@@ -1,304 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <functional>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-namespace detail {
-
-template <typename V>
-struct transform_helper {
-  template <class Func>
-  auto transform(const V &v, const Func &f) {
-    vector<decltype(f(*v.begin()))> result;
-    result.reserve(v.size());
-    for (auto &x : v) {
-      result.push_back(f(x));
-    }
-    return result;
-  }
-
-  template <class Func>
-  auto transform(V &&v, const Func &f) {
-    vector<decltype(f(std::move(*v.begin())))> result;
-    result.reserve(v.size());
-    for (auto &x : v) {
-      result.push_back(f(std::move(x)));
-    }
-    return result;
-  }
-};
-
-}  // namespace detail
-
-template <class V, class Func>
-auto transform(V &&v, const Func &f) {
-  return detail::transform_helper<std::decay_t<V>>().transform(std::forward<V>(v), f);
-}
-
-template <class T>
-vector<vector<T>> vector_split(vector<T> &&v, std::size_t size) {
-  CHECK(size != 0);
-  vector<vector<T>> result((v.size() + size - 1) / size);
-  if (result.size() <= 1) {
-    if (!result.empty()) {
-      result[0] = std::move(v);
-    }
-    return result;
-  }
-  for (size_t i = 0; i + 1 < result.size(); i++) {
-    auto &slice = result[i];
-    slice.reserve(size);
-    for (size_t j = 0; j < size; j++) {
-      slice.push_back(std::move(v[i * size + j]));
-    }
-  }
-  auto &slice = result.back();
-  auto offset = (result.size() - 1) * size;
-  slice.reserve(v.size() - offset);
-  for (size_t j = offset; j < v.size(); j++) {
-    slice.push_back(std::move(v[j]));
-  }
-  return result;
-}
-
-template <class V, class Func>
-bool remove_if(V &v, const Func &f) {
-  size_t i = 0;
-  while (i != v.size() && !f(v[i])) {
-    i++;
-  }
-  if (i == v.size()) {
-    return false;
-  }
-
-  size_t j = i;
-  while (++i != v.size()) {
-    if (!f(v[i])) {
-      v[j++] = std::move(v[i]);
-    }
-  }
-  v.erase(v.begin() + j, v.end());
-  return true;
-}
-
-template <class V, class T>
-bool remove(V &v, const T &value) {
-  size_t i = 0;
-  while (i != v.size() && v[i] != value) {
-    i++;
-  }
-  if (i == v.size()) {
-    return false;
-  }
-
-  size_t j = i;
-  while (++i != v.size()) {
-    if (v[i] != value) {
-      v[j++] = std::move(v[i]);
-    }
-  }
-  v.erase(v.begin() + j, v.end());
-  return true;
-}
-
-template <class V, class T>
-void add_to_top(V &v, size_t max_size, T value) {
-  size_t size = v.size();
-  size_t i;
-  for (i = 0; i < size; i++) {
-    if (v[i] == value) {
-      value = std::move(v[i]);
-      break;
-    }
-  }
-  if (i == size) {
-    if (size < max_size || i == 0) {
-      v.emplace_back(value);
-    } else {
-      i--;
-    }
-  }
-  while (i > 0) {
-    v[i] = std::move(v[i - 1]);
-    i--;
-  }
-  v[0] = std::move(value);
-}
-
-template <class V, class T, class F>
-void add_to_top_if(V &v, size_t max_size, T value, const F &is_equal_to_value) {
-  size_t size = v.size();
-  size_t i;
-  for (i = 0; i < size; i++) {
-    if (is_equal_to_value(v[i])) {
-      value = std::move(v[i]);
-      break;
-    }
-  }
-  if (i == size) {
-    if (size < max_size || i == 0) {
-      v.emplace_back(value);
-    } else {
-      i--;
-    }
-  }
-  while (i > 0) {
-    v[i] = std::move(v[i - 1]);
-    i--;
-  }
-  v[0] = std::move(value);
-}
-
-template <class V>
-void unique(V &v) {
-  if (v.empty()) {
-    return;
-  }
-
-  // use ADL to find std::sort
-  // caller will need to #include <algorithm>
-  sort(v.begin(), v.end(), std::less<void>());
-
-  size_t j = 1;
-  for (size_t i = 1; i < v.size(); i++) {
-    if (v[i] != v[j - 1]) {
-      if (i != j) {
-        v[j] = std::move(v[i]);
-      }
-      j++;
-    }
-  }
-  v.resize(j);
-}
-
-template <class V, class T>
-bool contains(const V &v, const T &value) {
-  for (auto &x : v) {
-    if (x == value) {
-      return true;
-    }
-  }
-  return false;
-}
-
-template <class V, class F>
-bool any_of(const V &v, F &&f) {
-  for (const auto &x : v) {
-    if (f(x)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-template <class V, class F>
-bool all_of(const V &v, F &&f) {
-  for (const auto &x : v) {
-    if (!f(x)) {
-      return false;
-    }
-  }
-  return true;
-}
-
-template <class T>
-void reset_to_empty(T &value) {
-  using std::swap;
-  std::decay_t<T> tmp;
-  swap(tmp, value);
-}
-
-template <class T>
-void append(vector<T> &destination, const vector<T> &source) {
-  destination.insert(destination.end(), source.begin(), source.end());
-}
-
-template <class T>
-void append(vector<T> &destination, vector<T> &&source) {
-  if (destination.empty()) {
-    destination.swap(source);
-    return;
-  }
-  destination.reserve(destination.size() + source.size());
-  for (auto &elem : source) {
-    destination.push_back(std::move(elem));
-  }
-  reset_to_empty(source);
-}
-
-template <class T>
-void combine(vector<T> &destination, const vector<T> &source) {
-  append(destination, source);
-}
-
-template <class T>
-void combine(vector<T> &destination, vector<T> &&source) {
-  if (destination.size() < source.size()) {
-    destination.swap(source);
-  }
-  if (source.empty()) {
-    return;
-  }
-  destination.reserve(destination.size() + source.size());
-  for (auto &elem : source) {
-    destination.push_back(std::move(elem));
-  }
-  reset_to_empty(source);
-}
-
-namespace detail {
-template <typename T>
-struct reversion_wrapper {
-  T &iterable;
-};
-
-template <typename T>
-auto begin(reversion_wrapper<T> w) {
-  return w.iterable.rbegin();
-}
-
-template <typename T>
-auto end(reversion_wrapper<T> w) {
-  return w.iterable.rend();
-}
-}  // namespace detail
-
-template <typename T>
-detail::reversion_wrapper<T> reversed(T &iterable) {
-  return {iterable};
-}
-
-template <class TableT, class FuncT>
-bool table_remove_if(TableT &table, FuncT &&func) {
-  bool is_removed = false;
-  for (auto it = table.begin(); it != table.end();) {
-    if (func(*it)) {
-      it = table.erase(it);
-      is_removed = true;
-    } else {
-      ++it;
-    }
-  }
-  return is_removed;
-}
-
-template <class NodeT, class HashT, class EqT>
-class FlatHashTable;
-
-template <class NodeT, class HashT, class EqT, class FuncT>
-bool table_remove_if(FlatHashTable<NodeT, HashT, EqT> &table, FuncT &&func) {
-  return table.remove_if(func);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/as.h b/third-party/td/td/tdutils/td/utils/as.h
deleted file mode 100644
index c97179d72f..0000000000
--- a/third-party/td/td/tdutils/td/utils/as.h
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/type_traits.h"
-
-#include <cstring>
-#include <type_traits>
-
-namespace td {
-
-namespace detail {
-
-template <class T>
-class As {
- public:
-  explicit As(void *ptr) : ptr_(ptr) {
-  }
-
-  As(const As &) = delete;
-  As &operator=(const As &) = delete;
-  As(As &&) = default;
-  As &operator=(As &&other) && noexcept {
-    std::memcpy(ptr_, other.ptr_, sizeof(T));
-    return *this;
-  }
-  ~As() = default;
-
-  As &operator=(const T &other) && {
-    std::memcpy(ptr_, &other, sizeof(T));
-    return *this;
-  }
-
-  operator T() const {
-    T res;
-    std::memcpy(&res, ptr_, sizeof(T));
-    return res;
-  }
-  bool operator==(const As &other) const {
-    return this->operator T() == other.operator T();
-  }
-
- private:
-  void *ptr_;
-};
-
-template <class T>
-class ConstAs {
- public:
-  explicit ConstAs(const void *ptr) : ptr_(ptr) {
-  }
-
-  operator T() const {
-    T res;
-    std::memcpy(&res, ptr_, sizeof(T));
-    return res;
-  }
-
- private:
-  const void *ptr_;
-};
-
-}  // namespace detail
-
-template <class ToT, class FromT,
-          std::enable_if_t<TD_IS_TRIVIALLY_COPYABLE(ToT) && TD_IS_TRIVIALLY_COPYABLE(FromT), int> = 0>
-detail::As<ToT> as(FromT *from) {
-  return detail::As<ToT>(from);
-}
-
-template <class ToT, class FromT,
-          std::enable_if_t<TD_IS_TRIVIALLY_COPYABLE(ToT) && TD_IS_TRIVIALLY_COPYABLE(FromT), int> = 0>
-detail::ConstAs<ToT> as(const FromT *from) {
-  return detail::ConstAs<ToT>(from);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/base64.cpp b/third-party/td/td/tdutils/td/utils/base64.cpp
deleted file mode 100644
index 79623675fc..0000000000
--- a/third-party/td/td/tdutils/td/utils/base64.cpp
+++ /dev/null
@@ -1,308 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/base64.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <algorithm>
-#include <iterator>
-
-namespace td {
-
-template <bool is_url>
-static const char *get_characters() {
-  return is_url ? "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"
-                : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-}
-
-template <bool is_url>
-static const unsigned char *get_character_table() {
-  static unsigned char char_to_value[256];
-  static bool is_inited = [] {
-    auto characters = get_characters<is_url>();
-    std::fill(std::begin(char_to_value), std::end(char_to_value), static_cast<unsigned char>(64));
-    for (unsigned char i = 0; i < 64; i++) {
-      char_to_value[static_cast<size_t>(characters[i])] = i;
-    }
-    return true;
-  }();
-  CHECK(is_inited);
-  return char_to_value;
-}
-
-template <bool is_url>
-string base64_encode_impl(Slice input) {
-  auto characters = get_characters<is_url>();
-  string base64;
-  base64.reserve((input.size() + 2) / 3 * 4);
-  for (size_t i = 0; i < input.size();) {
-    size_t left = min(input.size() - i, static_cast<size_t>(3));
-    int c = input.ubegin()[i++] << 16;
-    base64 += characters[c >> 18];
-    if (left != 1) {
-      c |= input.ubegin()[i++] << 8;
-    }
-    base64 += characters[(c >> 12) & 63];
-    if (left == 3) {
-      c |= input.ubegin()[i++];
-    }
-    if (left != 1) {
-      base64 += characters[(c >> 6) & 63];
-    } else if (!is_url) {
-      base64 += '=';
-    }
-    if (left == 3) {
-      base64 += characters[c & 63];
-    } else if (!is_url) {
-      base64 += '=';
-    }
-  }
-  return base64;
-}
-
-string base64_encode(Slice input) {
-  return base64_encode_impl<false>(input);
-}
-
-string base64url_encode(Slice input) {
-  return base64_encode_impl<true>(input);
-}
-
-template <bool is_url>
-Result<Slice> base64_drop_padding(Slice base64) {
-  size_t padding_length = 0;
-  while (!base64.empty() && base64.back() == '=') {
-    base64.remove_suffix(1);
-    padding_length++;
-  }
-  if (padding_length >= 3) {
-    return Status::Error("Wrong string padding");
-  }
-  if ((!is_url || padding_length > 0) && ((base64.size() + padding_length) & 3) != 0) {
-    return Status::Error("Wrong padding length");
-  }
-  if (is_url && (base64.size() & 3) == 1) {
-    return Status::Error("Wrong string length");
-  }
-  return base64;
-}
-
-static Status do_base64_decode_impl(Slice base64, const unsigned char *table, char *ptr) {
-  for (size_t i = 0; i < base64.size();) {
-    size_t left = min(base64.size() - i, static_cast<size_t>(4));
-    int c = 0;
-    for (size_t t = 0; t < left; t++) {
-      auto value = table[base64.ubegin()[i++]];
-      if (value == 64) {
-        return Status::Error("Wrong character in the string");
-      }
-      c |= value << ((3 - t) * 6);
-    }
-    *ptr++ = static_cast<char>(static_cast<unsigned char>(c >> 16));  // implementation-defined
-    if (left == 2) {
-      if ((c & ((1 << 16) - 1)) != 0) {
-        return Status::Error("Wrong padding in the string");
-      }
-    } else {
-      *ptr++ = static_cast<char>(static_cast<unsigned char>(c >> 8));  // implementation-defined
-      if (left == 3) {
-        if ((c & ((1 << 8) - 1)) != 0) {
-          return Status::Error("Wrong padding in the string");
-        }
-      } else {
-        *ptr++ = static_cast<char>(static_cast<unsigned char>(c));  // implementation-defined
-      }
-    }
-  }
-  return Status::OK();
-}
-
-template <class T>
-static T create_empty(size_t size);
-
-template <>
-string create_empty<string>(size_t size) {
-  return string(size, '\0');
-}
-
-template <>
-SecureString create_empty<SecureString>(size_t size) {
-  return SecureString{size};
-}
-
-template <bool is_url, class T>
-static Result<T> base64_decode_impl(Slice base64) {
-  TRY_RESULT_ASSIGN(base64, base64_drop_padding<is_url>(base64));
-
-  T result = create_empty<T>(base64.size() / 4 * 3 + ((base64.size() & 3) + 1) / 2);
-  TRY_STATUS(do_base64_decode_impl(base64, get_character_table<is_url>(), as_mutable_slice(result).begin()));
-  return std::move(result);
-}
-
-Result<string> base64_decode(Slice base64) {
-  return base64_decode_impl<false, string>(base64);
-}
-
-Result<SecureString> base64_decode_secure(Slice base64) {
-  return base64_decode_impl<false, SecureString>(base64);
-}
-
-Result<string> base64url_decode(Slice base64) {
-  return base64_decode_impl<true, string>(base64);
-}
-Result<SecureString> base64url_decode_secure(Slice base64) {
-  return base64_decode_impl<true, SecureString>(base64);
-}
-
-template <bool is_url>
-static bool is_base64_impl(Slice input) {
-  size_t padding_length = 0;
-  while (!input.empty() && input.back() == '=') {
-    input.remove_suffix(1);
-    padding_length++;
-  }
-  if (padding_length >= 3) {
-    return false;
-  }
-  if ((!is_url || padding_length > 0) && ((input.size() + padding_length) & 3) != 0) {
-    return false;
-  }
-  if (is_url && (input.size() & 3) == 1) {
-    return false;
-  }
-
-  auto table = get_character_table<is_url>();
-  for (auto c : input) {
-    if (table[static_cast<unsigned char>(c)] == 64) {
-      return false;
-    }
-  }
-
-  if ((input.size() & 3) == 2) {
-    auto value = table[static_cast<unsigned char>(input.back())];
-    if ((value & 15) != 0) {
-      return false;
-    }
-  }
-  if ((input.size() & 3) == 3) {
-    auto value = table[static_cast<unsigned char>(input.back())];
-    if ((value & 3) != 0) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-bool is_base64(Slice input) {
-  return is_base64_impl<false>(input);
-}
-
-bool is_base64url(Slice input) {
-  return is_base64_impl<true>(input);
-}
-
-template <bool is_url>
-static bool is_base64_characters_impl(Slice input) {
-  auto table = get_character_table<is_url>();
-  for (auto c : input) {
-    if (table[static_cast<unsigned char>(c)] == 64) {
-      return false;
-    }
-  }
-  return true;
-}
-
-bool is_base64_characters(Slice input) {
-  return is_base64_characters_impl<false>(input);
-}
-
-bool is_base64url_characters(Slice input) {
-  return is_base64_characters_impl<true>(input);
-}
-
-string base64_filter(Slice input) {
-  auto table = get_character_table<false>();
-  string res;
-  res.reserve(input.size());
-  for (auto c : input) {
-    if (table[static_cast<unsigned char>(c)] != 64 || c == '=') {
-      res += c;
-    }
-  }
-  return res;
-}
-
-static const char *get_base32_characters(bool upper_case) {
-  return upper_case ? "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567" : "abcdefghijklmnopqrstuvwxyz234567";
-}
-
-static const unsigned char *get_base32_character_table() {
-  static unsigned char char_to_value[256];
-  static bool is_inited = [] {
-    std::fill(std::begin(char_to_value), std::end(char_to_value), static_cast<unsigned char>(32));
-    auto characters_lc = get_base32_characters(false);
-    auto characters_uc = get_base32_characters(true);
-    for (unsigned char i = 0; i < 32; i++) {
-      char_to_value[static_cast<size_t>(characters_lc[i])] = i;
-      char_to_value[static_cast<size_t>(characters_uc[i])] = i;
-    }
-    return true;
-  }();
-  CHECK(is_inited);
-  return char_to_value;
-}
-
-string base32_encode(Slice input, bool upper_case) {
-  auto *characters = get_base32_characters(upper_case);
-  string base32;
-  base32.reserve((input.size() * 8 + 4) / 5);
-  uint32 c = 0;
-  uint32 length = 0;
-  for (size_t i = 0; i < input.size(); i++) {
-    c = (c << 8) | input.ubegin()[i];
-    length += 8;
-    while (length >= 5) {
-      length -= 5;
-      base32.push_back(characters[(c >> length) & 31]);
-    }
-  }
-  if (length != 0) {
-    base32.push_back(characters[(c << (5 - length)) & 31]);
-  }
-  //TODO: optional padding
-  return base32;
-}
-
-Result<string> base32_decode(Slice base32) {
-  string res;
-  res.reserve(base32.size() * 5 / 8);
-  uint32 c = 0;
-  uint32 length = 0;
-  auto *table = get_base32_character_table();
-  for (size_t i = 0; i < base32.size(); i++) {
-    auto value = table[base32.ubegin()[i]];
-    if (value == 32) {
-      return Status::Error("Wrong character in the string");
-    }
-    c = (c << 5) | value;
-    length += 5;
-    if (length >= 8) {
-      length -= 8;
-      res.push_back(static_cast<char>((c >> length) & 255));
-    }
-  }
-  if ((c & ((1 << length) - 1)) != 0) {
-    return Status::Error("Nonzero padding");
-  }
-  //TODO: check padding
-  return res;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/base64.h b/third-party/td/td/tdutils/td/utils/base64.h
deleted file mode 100644
index fc6a80c26a..0000000000
--- a/third-party/td/td/tdutils/td/utils/base64.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-string base64_encode(Slice input);
-Result<string> base64_decode(Slice base64);
-Result<SecureString> base64_decode_secure(Slice base64);
-
-string base64url_encode(Slice input);
-Result<string> base64url_decode(Slice base64);
-Result<SecureString> base64url_decode_secure(Slice base64);
-
-bool is_base64(Slice input);
-bool is_base64url(Slice input);
-
-bool is_base64_characters(Slice input);
-bool is_base64url_characters(Slice input);
-
-string base64_filter(Slice input);
-
-string base32_encode(Slice input, bool upper_case = false);
-Result<string> base32_decode(Slice base32);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/benchmark.h b/third-party/td/td/tdutils/td/utils/benchmark.h
deleted file mode 100644
index 8775bb17bc..0000000000
--- a/third-party/td/td/tdutils/td/utils/benchmark.h
+++ /dev/null
@@ -1,132 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/StringBuilder.h"
-
-#include <cmath>
-#include <tuple>
-#include <utility>
-
-#define BENCH(name, desc)                            \
-  class name##Bench final : public ::td::Benchmark { \
-   public:                                           \
-    std::string get_description() const final {      \
-      return (desc);                                 \
-    }                                                \
-    void run(int n) final;                           \
-  };                                                 \
-  void name##Bench::run(int n)
-
-namespace td {
-
-#if TD_MSVC
-
-#pragma optimize("", off)
-template <class T>
-void do_not_optimize_away(T &&datum) {
-  datum = datum;
-}
-#pragma optimize("", on)
-
-#else
-
-template <class T>
-void do_not_optimize_away(T &&datum) {
-  asm volatile("" : "+r"(datum));
-}
-
-#endif
-
-class Benchmark {
- public:
-  Benchmark() = default;
-  Benchmark(const Benchmark &) = delete;
-  Benchmark &operator=(const Benchmark &) = delete;
-  Benchmark(Benchmark &&) = delete;
-  Benchmark &operator=(Benchmark &&) = delete;
-  virtual ~Benchmark() = default;
-
-  virtual std::string get_description() const = 0;
-
-  virtual void start_up() {
-  }
-  virtual void start_up_n(int n) {
-    start_up();
-  }
-
-  virtual void tear_down() {
-  }
-
-  virtual void run(int n) = 0;
-};
-
-inline std::pair<double, double> bench_n(Benchmark &b, int n) {
-  double total = -Clocks::monotonic();
-  b.start_up_n(n);
-  double t = -Clocks::monotonic();
-  b.run(n);
-  t += Clocks::monotonic();
-  b.tear_down();
-  total += Clocks::monotonic();
-
-  return std::make_pair(t, total);
-}
-
-inline std::pair<double, double> bench_n(Benchmark &&b, int n) {
-  return bench_n(b, n);
-}
-
-inline void bench(Benchmark &b, double max_time = 1.0) {
-  int n = 1;
-  double pass_time = 0;
-  double total_pass_time = 0;
-  while (pass_time < max_time && total_pass_time < max_time * 3 && n < (1 << 30)) {
-    n *= 2;
-    std::tie(pass_time, total_pass_time) = bench_n(b, n);
-  }
-  pass_time = n / pass_time;
-
-  int pass_cnt = 2;
-  double sum = pass_time;
-  double square_sum = pass_time * pass_time;
-  double min_pass_time = pass_time;
-  double max_pass_time = pass_time;
-
-  for (int i = 1; i < pass_cnt; i++) {
-    pass_time = n / bench_n(b, n).first;
-    sum += pass_time;
-    square_sum += pass_time * pass_time;
-    if (pass_time < min_pass_time) {
-      min_pass_time = pass_time;
-    }
-    if (pass_time > max_pass_time) {
-      max_pass_time = pass_time;
-    }
-  }
-  double average = sum / pass_cnt;
-  double d = sqrt(square_sum / pass_cnt - average * average);
-
-  auto description = b.get_description();
-  std::string pad;
-  if (description.size() < 40) {
-    pad = std::string(40 - description.size(), ' ');
-  }
-
-  LOG(ERROR) << "Bench [" << pad << description << "]: " << StringBuilder::FixedDouble(average, 3) << '['
-             << StringBuilder::FixedDouble(min_pass_time, 3) << '-' << StringBuilder::FixedDouble(max_pass_time, 3)
-             << "] ops/sec,\t" << format::as_time(1 / average) << " [d = " << StringBuilder::FixedDouble(d, 6) << ']';
-}
-
-inline void bench(Benchmark &&b, double max_time = 1.0) {
-  bench(b, max_time);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/bits.h b/third-party/td/td/tdutils/td/utils/bits.h
deleted file mode 100644
index 85634c40f0..0000000000
--- a/third-party/td/td/tdutils/td/utils/bits.h
+++ /dev/null
@@ -1,310 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#if TD_MSVC
-#include <intrin.h>
-#endif
-
-#ifdef bswap32
-#undef bswap32
-#endif
-
-#ifdef bswap64
-#undef bswap64
-#endif
-
-namespace td {
-
-int32 count_leading_zeroes32(uint32 x);
-int32 count_leading_zeroes64(uint64 x);
-int32 count_trailing_zeroes32(uint32 x);
-int32 count_trailing_zeroes64(uint64 x);
-uint32 bswap32(uint32 x);
-uint64 bswap64(uint64 x);
-int32 count_bits32(uint32 x);
-int32 count_bits64(uint64 x);
-
-inline uint32 bits_negate32(uint32 x) {
-  return ~x + 1;
-}
-
-inline uint64 bits_negate64(uint64 x) {
-  return ~x + 1;
-}
-
-inline uint32 lower_bit32(uint32 x) {
-  return x & bits_negate32(x);
-}
-
-inline uint64 lower_bit64(uint64 x) {
-  return x & bits_negate64(x);
-}
-
-inline uint64 host_to_big_endian64(uint64 x) {
-  // NB: works only for little-endian systems
-  return bswap64(x);
-}
-inline uint64 big_endian_to_host64(uint64 x) {
-  // NB: works only for little-endian systems
-  return bswap64(x);
-}
-
-//TODO: optimize
-inline int32 count_leading_zeroes_non_zero32(uint32 x) {
-  DCHECK(x != 0);
-  return count_leading_zeroes32(x);
-}
-inline int32 count_leading_zeroes_non_zero64(uint64 x) {
-  DCHECK(x != 0);
-  return count_leading_zeroes64(x);
-}
-inline int32 count_trailing_zeroes_non_zero32(uint32 x) {
-  DCHECK(x != 0);
-  return count_trailing_zeroes32(x);
-}
-inline int32 count_trailing_zeroes_non_zero64(uint64 x) {
-  DCHECK(x != 0);
-  return count_trailing_zeroes64(x);
-}
-
-//
-// Platform specific implementation
-//
-#if TD_MSVC
-
-inline int32 count_leading_zeroes32(uint32 x) {
-  unsigned long res = 0;
-  if (_BitScanReverse(&res, x)) {
-    return 31 - res;
-  }
-  return 32;
-}
-
-inline int32 count_leading_zeroes64(uint64 x) {
-#if defined(_M_X64)
-  unsigned long res = 0;
-  if (_BitScanReverse64(&res, x)) {
-    return 63 - res;
-  }
-  return 64;
-#else
-  if ((x >> 32) == 0) {
-    return count_leading_zeroes32(static_cast<uint32>(x)) + 32;
-  } else {
-    return count_leading_zeroes32(static_cast<uint32>(x >> 32));
-  }
-#endif
-}
-
-inline int32 count_trailing_zeroes32(uint32 x) {
-  unsigned long res = 0;
-  if (_BitScanForward(&res, x)) {
-    return res;
-  }
-  return 32;
-}
-
-inline int32 count_trailing_zeroes64(uint64 x) {
-#if defined(_M_X64)
-  unsigned long res = 0;
-  if (_BitScanForward64(&res, x)) {
-    return res;
-  }
-  return 64;
-#else
-  if (static_cast<uint32>(x) == 0) {
-    return count_trailing_zeroes32(static_cast<uint32>(x >> 32)) + 32;
-  } else {
-    return count_trailing_zeroes32(static_cast<uint32>(x));
-  }
-#endif
-}
-
-inline uint32 bswap32(uint32 x) {
-  return _byteswap_ulong(x);
-}
-
-inline uint64 bswap64(uint64 x) {
-  return _byteswap_uint64(x);
-}
-
-inline int32 count_bits32(uint32 x) {
-  // Do not use __popcnt because it will fail on some platforms.
-  x -= (x >> 1) & 0x55555555;
-  x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
-  x = (x + (x >> 4)) & 0x0F0F0F0F;
-  x += x >> 8;
-  return (x + (x >> 16)) & 0x3F;
-}
-
-inline int32 count_bits64(uint64 x) {
-#if defined(_M_X64)
-  return static_cast<int32>(__popcnt64(x));
-#else
-  return count_bits32(static_cast<uint32>(x >> 32)) + count_bits32(static_cast<uint32>(x));
-#endif
-}
-
-#elif TD_INTEL
-
-inline int32 count_leading_zeroes32(uint32 x) {
-  unsigned __int32 res = 0;
-  if (_BitScanReverse(&res, x)) {
-    return 31 - res;
-  }
-  return 32;
-}
-
-inline int32 count_leading_zeroes64(uint64 x) {
-#if defined(_M_X64) || defined(__x86_64__)
-  unsigned __int32 res = 0;
-  if (_BitScanReverse64(&res, x)) {
-    return 63 - res;
-  }
-  return 64;
-#else
-  if ((x >> 32) == 0) {
-    return count_leading_zeroes32(static_cast<uint32>(x)) + 32;
-  } else {
-    return count_leading_zeroes32(static_cast<uint32>(x >> 32));
-  }
-#endif
-}
-
-inline int32 count_trailing_zeroes32(uint32 x) {
-  unsigned __int32 res = 0;
-  if (_BitScanForward(&res, x)) {
-    return res;
-  }
-  return 32;
-}
-
-inline int32 count_trailing_zeroes64(uint64 x) {
-#if defined(_M_X64) || defined(__x86_64__)
-  unsigned __int32 res = 0;
-  if (_BitScanForward64(&res, x)) {
-    return res;
-  }
-  return 64;
-#else
-  if (static_cast<uint32>(x) == 0) {
-    return count_trailing_zeroes32(static_cast<uint32>(x >> 32)) + 32;
-  } else {
-    return count_trailing_zeroes32(static_cast<uint32>(x));
-  }
-#endif
-}
-
-inline uint32 bswap32(uint32 x) {
-  return _bswap(static_cast<int>(x));
-}
-
-inline uint64 bswap64(uint64 x) {
-  return _bswap64(static_cast<__int64>(x));
-}
-
-inline int32 count_bits32(uint32 x) {
-  x -= (x >> 1) & 0x55555555;
-  x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
-  x = (x + (x >> 4)) & 0x0F0F0F0F;
-  x += x >> 8;
-  return (x + (x >> 16)) & 0x3F;
-}
-
-inline int32 count_bits64(uint64 x) {
-  return count_bits32(static_cast<uint32>(x >> 32)) + count_bits32(static_cast<uint32>(x));
-}
-
-#else
-
-inline int32 count_leading_zeroes32(uint32 x) {
-  if (x == 0) {
-    return 32;
-  }
-  return __builtin_clz(x);
-}
-
-inline int32 count_leading_zeroes64(uint64 x) {
-  if (x == 0) {
-    return 64;
-  }
-  return __builtin_clzll(x);
-}
-
-inline int32 count_trailing_zeroes32(uint32 x) {
-  if (x == 0) {
-    return 32;
-  }
-  return __builtin_ctz(x);
-}
-
-inline int32 count_trailing_zeroes64(uint64 x) {
-  if (x == 0) {
-    return 64;
-  }
-  return __builtin_ctzll(x);
-}
-
-inline uint32 bswap32(uint32 x) {
-  return __builtin_bswap32(x);
-}
-
-inline uint64 bswap64(uint64 x) {
-  return __builtin_bswap64(x);
-}
-
-inline int32 count_bits32(uint32 x) {
-  return __builtin_popcount(x);
-}
-
-inline int32 count_bits64(uint64 x) {
-  return __builtin_popcountll(x);
-}
-
-#endif
-
-struct BitsRange {
-  explicit BitsRange(uint64 bits = 0) : bits{bits}, pos{-1} {
-  }
-
-  BitsRange begin() const {
-    return *this;
-  }
-
-  BitsRange end() const {
-    return BitsRange{};
-  }
-
-  int32 operator*() const {
-    if (pos == -1) {
-      pos = count_trailing_zeroes64(bits);
-    }
-    return pos;
-  }
-
-  bool operator!=(const BitsRange &other) const {
-    return bits != other.bits;
-  }
-
-  BitsRange &operator++() {
-    auto i = **this;
-    if (i != 64) {
-      bits ^= 1ull << i;
-    }
-    pos = -1;
-    return *this;
-  }
-
- private:
-  uint64 bits{0};
-  mutable int32 pos{-1};
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/buffer.cpp b/third-party/td/td/tdutils/td/utils/buffer.cpp
deleted file mode 100644
index 03f98937d7..0000000000
--- a/third-party/td/td/tdutils/td/utils/buffer.cpp
+++ /dev/null
@@ -1,201 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/buffer.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/port/thread_local.h"
-
-#include <cstddef>
-#include <new>
-
-// fixes https://bugs.llvm.org/show_bug.cgi?id=33723 for clang >= 3.6 + c++11 + libc++
-#if TD_CLANG && _LIBCPP_VERSION
-#define TD_OFFSETOF __builtin_offsetof
-#else
-#define TD_OFFSETOF offsetof
-#endif
-
-namespace td {
-
-TD_THREAD_LOCAL BufferAllocator::BufferRawTls *BufferAllocator::buffer_raw_tls;  // static zero-initialized
-
-std::atomic<size_t> BufferAllocator::buffer_mem;
-
-int64 BufferAllocator::get_buffer_slice_size() {
-  return 0;
-}
-
-size_t BufferAllocator::get_buffer_mem() {
-  return buffer_mem;
-}
-
-BufferAllocator::WriterPtr BufferAllocator::create_writer(size_t size) {
-  if (size < 512) {
-    size = 512;
-  }
-  return create_writer_exact(size);
-}
-
-BufferAllocator::WriterPtr BufferAllocator::create_writer_exact(size_t size) {
-  return WriterPtr(create_buffer_raw(size));
-}
-
-BufferAllocator::WriterPtr BufferAllocator::create_writer(size_t size, size_t prepend, size_t append) {
-  auto ptr = create_writer(size + prepend + append);
-  ptr->begin_ += prepend;
-  ptr->end_ += prepend + size;
-  return ptr;
-}
-
-BufferAllocator::ReaderPtr BufferAllocator::create_reader(size_t size) {
-  if (size < 512) {
-    return create_reader_fast(size);
-  }
-  auto ptr = create_writer_exact(size);
-  ptr->end_ += (size + 7) & -8;
-  return create_reader(ptr);
-}
-
-BufferAllocator::ReaderPtr BufferAllocator::create_reader_fast(size_t size) {
-  size = (size + 7) & -8;
-
-  init_thread_local<BufferRawTls>(buffer_raw_tls);
-
-  auto buffer_raw = buffer_raw_tls->buffer_raw.get();
-  if (buffer_raw == nullptr || buffer_raw->data_size_ - buffer_raw->end_.load(std::memory_order_relaxed) < size) {
-    buffer_raw = create_buffer_raw(4096 * 4);
-    buffer_raw_tls->buffer_raw = std::unique_ptr<BufferRaw, BufferAllocator::BufferRawDeleter>(buffer_raw);
-  }
-  buffer_raw->end_.fetch_add(size, std::memory_order_relaxed);
-  buffer_raw->ref_cnt_.fetch_add(1, std::memory_order_acq_rel);
-  return ReaderPtr(buffer_raw);
-}
-
-BufferAllocator::ReaderPtr BufferAllocator::create_reader(const WriterPtr &raw) {
-  raw->was_reader_ = true;
-  raw->ref_cnt_.fetch_add(1, std::memory_order_acq_rel);
-  return ReaderPtr(raw.get());
-}
-
-BufferAllocator::ReaderPtr BufferAllocator::create_reader(const ReaderPtr &raw) {
-  raw->ref_cnt_.fetch_add(1, std::memory_order_acq_rel);
-  return ReaderPtr(raw.get());
-}
-
-void BufferAllocator::dec_ref_cnt(BufferRaw *ptr) {
-  int left = ptr->ref_cnt_.fetch_sub(1, std::memory_order_acq_rel);
-  if (left == 1) {
-    auto buf_size = max(sizeof(BufferRaw), TD_OFFSETOF(BufferRaw, data_) + ptr->data_size_);
-    buffer_mem -= buf_size;
-    ptr->~BufferRaw();
-    delete[] ptr;
-  }
-}
-
-size_t ChainBufferReader::advance(size_t offset, MutableSlice dest) {
-  LOG_CHECK(offset <= size()) << offset << " " << size() << " " << end_.offset() << " " << begin_.offset() << " "
-                              << sync_flag_ << " " << dest.size();
-  return begin_.advance(offset, dest);
-}
-
-BufferRaw *BufferAllocator::create_buffer_raw(size_t size) {
-  size = (size + 7) & -8;
-
-  auto buf_size = TD_OFFSETOF(BufferRaw, data_) + size;
-  if (buf_size < sizeof(BufferRaw)) {
-    buf_size = sizeof(BufferRaw);
-  }
-  buffer_mem += buf_size;
-  auto *buffer_raw = reinterpret_cast<BufferRaw *>(new char[buf_size]);
-  return new (buffer_raw) BufferRaw(size);
-}
-
-void BufferBuilder::append(BufferSlice slice) {
-  if (append_inplace(slice.as_slice())) {
-    return;
-  }
-  append_slow(std::move(slice));
-}
-
-void BufferBuilder::append(Slice slice) {
-  if (append_inplace(slice)) {
-    return;
-  }
-  append_slow(BufferSlice(slice));
-}
-
-void BufferBuilder::prepend(BufferSlice slice) {
-  if (prepend_inplace(slice.as_slice())) {
-    return;
-  }
-  prepend_slow(std::move(slice));
-}
-
-void BufferBuilder::prepend(Slice slice) {
-  if (prepend_inplace(slice)) {
-    return;
-  }
-  prepend_slow(BufferSlice(slice));
-}
-
-BufferSlice BufferBuilder::extract() {
-  if (to_append_.empty() && to_prepend_.empty()) {
-    return buffer_writer_.as_buffer_slice();
-  }
-  size_t total_size = size();
-  BufferWriter writer(0, 0, total_size);
-  std::move(*this).for_each([&](auto &&slice) {
-    writer.prepare_append().truncate(slice.size()).copy_from(slice.as_slice());
-    writer.confirm_append(slice.size());
-  });
-  *this = {};
-  return writer.as_buffer_slice();
-}
-
-size_t BufferBuilder::size() const {
-  size_t total_size = 0;
-  for_each([&](auto &&slice) { total_size += slice.size(); });
-  return total_size;
-}
-
-bool BufferBuilder::append_inplace(Slice slice) {
-  if (!to_append_.empty()) {
-    return false;
-  }
-  auto dest = buffer_writer_.prepare_append();
-  if (dest.size() < slice.size()) {
-    return false;
-  }
-  dest.remove_suffix(dest.size() - slice.size());
-  dest.copy_from(slice);
-  buffer_writer_.confirm_append(slice.size());
-  return true;
-}
-
-void BufferBuilder::append_slow(BufferSlice slice) {
-  to_append_.push_back(std::move(slice));
-}
-
-bool BufferBuilder::prepend_inplace(Slice slice) {
-  if (!to_prepend_.empty()) {
-    return false;
-  }
-  auto dest = buffer_writer_.prepare_prepend();
-  if (dest.size() < slice.size()) {
-    return false;
-  }
-  dest.remove_prefix(dest.size() - slice.size());
-  dest.copy_from(slice);
-  buffer_writer_.confirm_prepend(slice.size());
-  return true;
-}
-
-void BufferBuilder::prepend_slow(BufferSlice slice) {
-  to_prepend_.push_back(std::move(slice));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/buffer.h b/third-party/td/td/tdutils/td/utils/buffer.h
deleted file mode 100644
index 6e5084a053..0000000000
--- a/third-party/td/td/tdutils/td/utils/buffer.h
+++ /dev/null
@@ -1,836 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-
-#include <atomic>
-#include <limits>
-#include <memory>
-
-namespace td {
-
-struct BufferRaw {
-  explicit BufferRaw(size_t size) : data_size_(size) {
-  }
-  size_t data_size_;
-
-  // Constant after first reader is created.
-  // May be change by writer before it.
-  // So writer may do prepends till there is no reader created.
-  size_t begin_ = 0;
-
-  // Write by writer.
-  // Read by reader.
-  std::atomic<size_t> end_{0};
-
-  mutable std::atomic<int32> ref_cnt_{1};
-  std::atomic<bool> has_writer_{true};
-  bool was_reader_{false};
-
-  alignas(4) unsigned char data_[1];
-};
-
-class BufferAllocator {
- public:
-  class DeleteWriterPtr {
-   public:
-    void operator()(BufferRaw *ptr) {
-      ptr->has_writer_.store(false, std::memory_order_release);
-      dec_ref_cnt(ptr);
-    }
-  };
-  class DeleteReaderPtr {
-   public:
-    void operator()(BufferRaw *ptr) {
-      dec_ref_cnt(ptr);
-    }
-  };
-
-  using WriterPtr = std::unique_ptr<BufferRaw, DeleteWriterPtr>;
-  using ReaderPtr = std::unique_ptr<BufferRaw, DeleteReaderPtr>;
-
-  static WriterPtr create_writer(size_t size);
-
-  static WriterPtr create_writer(size_t size, size_t prepend, size_t append);
-
-  static ReaderPtr create_reader(size_t size);
-
-  static ReaderPtr create_reader(const WriterPtr &raw);
-
-  static ReaderPtr create_reader(const ReaderPtr &raw);
-
-  static size_t get_buffer_mem();
-  static int64 get_buffer_slice_size();
-
-  static void clear_thread_local();
-
- private:
-  friend class BufferSlice;
-
-  static void track_buffer_slice(int64 size) {
-  }
-
-  static ReaderPtr create_reader_fast(size_t size);
-
-  static WriterPtr create_writer_exact(size_t size);
-
-  struct BufferRawDeleter {
-    void operator()(BufferRaw *ptr) {
-      dec_ref_cnt(ptr);
-    }
-  };
-  struct BufferRawTls {
-    std::unique_ptr<BufferRaw, BufferRawDeleter> buffer_raw;
-  };
-
-  static TD_THREAD_LOCAL BufferRawTls *buffer_raw_tls;
-
-  static void dec_ref_cnt(BufferRaw *ptr);
-
-  static BufferRaw *create_buffer_raw(size_t size);
-
-  static std::atomic<size_t> buffer_mem;
-};
-
-using BufferWriterPtr = BufferAllocator::WriterPtr;
-using BufferReaderPtr = BufferAllocator::ReaderPtr;
-
-class BufferSlice {
- public:
-  BufferSlice() = default;
-  explicit BufferSlice(BufferReaderPtr buffer_ptr) : buffer_(std::move(buffer_ptr)) {
-    if (is_null()) {
-      return;
-    }
-    begin_ = buffer_->begin_;
-    end_ = begin_;
-    sync_with_writer();
-  }
-  BufferSlice(BufferReaderPtr buffer_ptr, size_t begin, size_t end)
-      : buffer_(std::move(buffer_ptr)), begin_(begin), end_(end) {
-    debug_track();
-  }
-  BufferSlice(const BufferSlice &) = delete;
-  BufferSlice &operator=(const BufferSlice &) = delete;
-  BufferSlice(BufferSlice &&other) noexcept : BufferSlice(std::move(other.buffer_), other.begin_, other.end_) {
-    debug_untrack();  // yes, debug_untrack
-  }
-  BufferSlice &operator=(BufferSlice &&other) noexcept {
-    if (this == &other) {
-      return *this;
-    }
-    debug_untrack();
-    buffer_ = std::move(other.buffer_);
-    begin_ = other.begin_;
-    end_ = other.end_;
-    return *this;
-  }
-
-  explicit BufferSlice(size_t size) : buffer_(BufferAllocator::create_reader(size)) {
-    end_ = buffer_->end_.load(std::memory_order_relaxed);
-    begin_ = end_ - ((size + 7) & -8);
-    end_ = begin_ + size;
-    debug_track();
-  }
-
-  explicit BufferSlice(Slice slice) : BufferSlice(slice.size()) {
-    as_mutable_slice().copy_from(slice);
-  }
-
-  BufferSlice(const char *ptr, size_t size) : BufferSlice(Slice(ptr, size)) {
-  }
-
-  ~BufferSlice() {
-    debug_untrack();
-  }
-
-  void debug_track() const {
-    BufferAllocator::track_buffer_slice(static_cast<int64>(size()));
-  }
-  void debug_untrack() const {
-    BufferAllocator::track_buffer_slice(-static_cast<int64>(size()));
-  }
-
-  BufferSlice clone() const {
-    if (is_null()) {
-      return BufferSlice(BufferReaderPtr(), begin_, end_);
-    }
-    return BufferSlice(BufferAllocator::create_reader(buffer_), begin_, end_);
-  }
-
-  BufferSlice copy() const {
-    if (is_null()) {
-      return BufferSlice(BufferReaderPtr(), begin_, end_);
-    }
-    return BufferSlice(as_slice());
-  }
-
-  Slice as_slice() const {
-    if (is_null()) {
-      return Slice();
-    }
-    return Slice(buffer_->data_ + begin_, size());
-  }
-
-  operator Slice() const {
-    return as_slice();
-  }
-
-  MutableSlice as_mutable_slice() {
-    if (is_null()) {
-      return MutableSlice();
-    }
-    return MutableSlice(buffer_->data_ + begin_, size());
-  }
-
-  Slice prepare_read() const {
-    return as_slice();
-  }
-
-  Slice after(size_t offset) const {
-    auto full = as_slice();
-    full.remove_prefix(offset);
-    return full;
-  }
-
-  bool confirm_read(size_t size) {
-    debug_untrack();
-    begin_ += size;
-    CHECK(begin_ <= end_);
-    debug_track();
-    return begin_ == end_;
-  }
-
-  void truncate(size_t limit) {
-    if (size() > limit) {
-      debug_untrack();
-      end_ = begin_ + limit;
-      debug_track();
-    }
-  }
-
-  BufferSlice from_slice(Slice slice) const {
-    auto res = BufferSlice(BufferAllocator::create_reader(buffer_));
-    res.debug_untrack();
-    res.begin_ = static_cast<size_t>(slice.ubegin() - buffer_->data_);
-    res.end_ = static_cast<size_t>(slice.uend() - buffer_->data_);
-    res.debug_track();
-    CHECK(buffer_->begin_ <= res.begin_);
-    CHECK(res.begin_ <= res.end_);
-    CHECK(res.end_ <= buffer_->end_.load(std::memory_order_relaxed));
-    return res;
-  }
-
-  // like in std::string
-  char *data() {
-    return as_mutable_slice().data();
-  }
-  const char *data() const {
-    return as_slice().data();
-  }
-  char operator[](size_t at) const {
-    return as_slice()[at];
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-
-  bool is_null() const {
-    return !buffer_;
-  }
-
-  size_t size() const {
-    if (is_null()) {
-      return 0;
-    }
-    return end_ - begin_;
-  }
-
-  // like in std::string
-  size_t length() const {
-    return size();
-  }
-
-  // set end_ into writer's end_
-  size_t sync_with_writer() {
-    debug_untrack();
-    CHECK(!is_null());
-    auto old_end = end_;
-    end_ = buffer_->end_.load(std::memory_order_acquire);
-    debug_track();
-    return end_ - old_end;
-  }
-  bool is_writer_alive() const {
-    CHECK(!is_null());
-    return buffer_->has_writer_.load(std::memory_order_acquire);
-  }
-  void clear() {
-    debug_untrack();
-    begin_ = 0;
-    end_ = 0;
-    buffer_ = nullptr;
-  }
-
- private:
-  BufferReaderPtr buffer_;
-  size_t begin_ = 0;
-  size_t end_ = 0;
-};
-
-template <class StorerT>
-void store(const BufferSlice &buffer_slice, StorerT &storer) {
-  storer.store_string(buffer_slice);
-}
-
-template <class ParserT>
-void parse(BufferSlice &buffer_slice, ParserT &parser) {
-  buffer_slice = parser.template fetch_string<BufferSlice>();
-}
-
-class BufferWriter {
- public:
-  BufferWriter() = default;
-  explicit BufferWriter(size_t size) : BufferWriter(BufferAllocator::create_writer(size)) {
-  }
-  BufferWriter(size_t size, size_t prepend, size_t append)
-      : BufferWriter(BufferAllocator::create_writer(size, prepend, append)) {
-  }
-  BufferWriter(Slice slice, size_t prepend, size_t append)
-      : BufferWriter(BufferAllocator::create_writer(slice.size(), prepend, append)) {
-    as_mutable_slice().copy_from(slice);
-  }
-  explicit BufferWriter(BufferWriterPtr buffer_ptr) : buffer_(std::move(buffer_ptr)) {
-  }
-
-  BufferSlice as_buffer_slice() const {
-    return BufferSlice(BufferAllocator::create_reader(buffer_));
-  }
-  bool is_null() const {
-    return !buffer_;
-  }
-  bool empty() const {
-    return size() == 0;
-  }
-  size_t size() const {
-    if (is_null()) {
-      return 0;
-    }
-    return buffer_->end_.load(std::memory_order_relaxed) - buffer_->begin_;
-  }
-  MutableSlice as_mutable_slice() {
-    auto end = buffer_->end_.load(std::memory_order_relaxed);
-    return MutableSlice(buffer_->data_ + buffer_->begin_, buffer_->data_ + end);
-  }
-  Slice as_slice() const {
-    auto end = buffer_->end_.load(std::memory_order_relaxed);
-    return Slice(buffer_->data_ + buffer_->begin_, buffer_->data_ + end);
-  }
-
-  MutableSlice prepare_prepend() {
-    if (is_null()) {
-      return MutableSlice();
-    }
-    CHECK(!buffer_->was_reader_);
-    return MutableSlice(buffer_->data_, buffer_->begin_);
-  }
-  MutableSlice prepare_append() {
-    if (is_null()) {
-      return MutableSlice();
-    }
-    auto end = buffer_->end_.load(std::memory_order_relaxed);
-    return MutableSlice(buffer_->data_ + end, buffer_->data_size_ - end);
-  }
-  void confirm_append(size_t size) {
-    if (is_null()) {
-      CHECK(size == 0);
-      return;
-    }
-    auto new_end = buffer_->end_.load(std::memory_order_relaxed) + size;
-    CHECK(new_end <= buffer_->data_size_);
-    buffer_->end_.store(new_end, std::memory_order_release);
-  }
-  void confirm_prepend(size_t size) {
-    if (is_null()) {
-      CHECK(size == 0);
-      return;
-    }
-    CHECK(buffer_->begin_ >= size);
-    buffer_->begin_ -= size;
-  }
-
- private:
-  BufferWriterPtr buffer_;
-};
-
-struct ChainBufferNode {
-  friend struct DeleteWriterPtr;
-  struct DeleteWriterPtr {
-    void operator()(ChainBufferNode *ptr) {
-      ptr->has_writer_.store(false, std::memory_order_release);
-      dec_ref_cnt(ptr);
-    }
-  };
-  friend struct DeleteReaderPtr;
-  struct DeleteReaderPtr {
-    void operator()(ChainBufferNode *ptr) {
-      dec_ref_cnt(ptr);
-    }
-  };
-  using WriterPtr = std::unique_ptr<ChainBufferNode, DeleteWriterPtr>;
-  using ReaderPtr = std::unique_ptr<ChainBufferNode, DeleteReaderPtr>;
-
-  static WriterPtr make_writer_ptr(ChainBufferNode *ptr) {
-    ptr->ref_cnt_.store(1, std::memory_order_relaxed);
-    ptr->has_writer_.store(true, std::memory_order_relaxed);
-    return WriterPtr(ptr);
-  }
-  static ReaderPtr make_reader_ptr(ChainBufferNode *ptr) {
-    ptr->ref_cnt_.fetch_add(1, std::memory_order_acq_rel);
-    return ReaderPtr(ptr);
-  }
-
-  bool has_writer() {
-    return has_writer_.load(std::memory_order_acquire);
-  }
-
-  bool unique() {
-    return ref_cnt_.load(std::memory_order_acquire) == 1;
-  }
-
-  ChainBufferNode(BufferSlice slice, bool sync_flag) : slice_(std::move(slice)), sync_flag_(sync_flag) {
-  }
-
-  // reader
-  // There are two options
-  // 1. Fixed slice of Buffer
-  // 2. Slice with non-fixed right end
-  // In each case slice_ is const. Reader should read it and use sync_with_writer on its own copy.
-  const BufferSlice slice_;
-  const bool sync_flag_{false};  // should we call slice_.sync_with_writer or not.
-
-  // writer
-  ReaderPtr next_{nullptr};
-
- private:
-  std::atomic<int> ref_cnt_{0};
-  std::atomic<bool> has_writer_{false};
-
-  static void clear_nonrecursive(ReaderPtr ptr) {
-    while (ptr && ptr->unique()) {
-      ptr = std::move(ptr->next_);
-    }
-  }
-  static void dec_ref_cnt(ChainBufferNode *ptr) {
-    int left = --ptr->ref_cnt_;
-    if (left == 0) {
-      clear_nonrecursive(std::move(ptr->next_));
-      // TODO(refact): move memory management into allocator (?)
-      delete ptr;
-    }
-  }
-};
-
-using ChainBufferNodeWriterPtr = ChainBufferNode::WriterPtr;
-using ChainBufferNodeReaderPtr = ChainBufferNode::ReaderPtr;
-
-class ChainBufferNodeAllocator {
- public:
-  static ChainBufferNodeWriterPtr create(BufferSlice slice, bool sync_flag) {
-    auto *ptr = new ChainBufferNode(std::move(slice), sync_flag);
-    return ChainBufferNode::make_writer_ptr(ptr);
-  }
-  static ChainBufferNodeReaderPtr clone(const ChainBufferNodeReaderPtr &ptr) {
-    if (!ptr) {
-      return ChainBufferNodeReaderPtr();
-    }
-    return ChainBufferNode::make_reader_ptr(ptr.get());
-  }
-  static ChainBufferNodeReaderPtr clone(ChainBufferNodeWriterPtr &ptr) {
-    if (!ptr) {
-      return ChainBufferNodeReaderPtr();
-    }
-    return ChainBufferNode::make_reader_ptr(ptr.get());
-  }
-};
-
-class ChainBufferIterator {
- public:
-  ChainBufferIterator() = default;
-  explicit ChainBufferIterator(ChainBufferNodeReaderPtr head) : head_(std::move(head)) {
-    load_head();
-  }
-  ChainBufferIterator clone() const {
-    return ChainBufferIterator(ChainBufferNodeAllocator::clone(head_), reader_.clone(), need_sync_, offset_);
-  }
-
-  size_t offset() const {
-    return offset_;
-  }
-
-  void clear() {
-    *this = ChainBufferIterator();
-  }
-
-  Slice prepare_read() {
-    if (!head_) {
-      return Slice();
-    }
-    while (true) {
-      auto res = reader_.prepare_read();
-      if (!res.empty()) {
-        return res;
-      }
-      auto has_writer = head_->has_writer();
-      if (need_sync_) {
-        reader_.sync_with_writer();
-        res = reader_.prepare_read();
-        if (!res.empty()) {
-          return res;
-        }
-      }
-      if (has_writer) {
-        return Slice();
-      }
-      head_ = ChainBufferNodeAllocator::clone(head_->next_);
-      if (!head_) {
-        return Slice();
-      }
-      load_head();
-    }
-  }
-
-  // returns only head
-  BufferSlice read_as_buffer_slice(size_t limit) {
-    prepare_read();
-    auto res = reader_.clone();
-    res.truncate(limit);
-    confirm_read(res.size());
-    return res;
-  }
-
-  const BufferSlice &head() const {
-    return reader_;
-  }
-
-  void confirm_read(size_t size) {
-    offset_ += size;
-    reader_.confirm_read(size);
-  }
-
-  void advance_till_end() {
-    while (true) {
-      auto ready = prepare_read();
-      if (ready.empty()) {
-        break;
-      }
-      confirm_read(ready.size());
-    }
-  }
-
-  size_t advance(size_t offset, MutableSlice dest = MutableSlice()) {
-    size_t skipped = 0;
-    while (offset != 0) {
-      auto ready = prepare_read();
-      if (ready.empty()) {
-        break;
-      }
-
-      // read no more than offset
-      ready.truncate(offset);
-      offset -= ready.size();
-      skipped += ready.size();
-
-      // copy to dest if possible
-      auto to_dest_size = min(ready.size(), dest.size());
-      if (to_dest_size != 0) {
-        dest.copy_from(ready.substr(0, to_dest_size));
-        dest.remove_prefix(to_dest_size);
-      }
-
-      confirm_read(ready.size());
-    }
-    return skipped;
-  }
-
- private:
-  ChainBufferNodeReaderPtr head_;
-  BufferSlice reader_;      // copy of head_->slice_
-  bool need_sync_ = false;  // copy of head_->sync_flag_
-  size_t offset_ = 0;       // position in the union of all nodes
-
-  ChainBufferIterator(ChainBufferNodeReaderPtr head, BufferSlice reader, bool need_sync, size_t offset)
-      : head_(std::move(head)), reader_(std::move(reader)), need_sync_(need_sync), offset_(offset) {
-  }
-  void load_head() {
-    reader_ = head_->slice_.clone();
-    need_sync_ = head_->sync_flag_;
-  }
-};
-
-class ChainBufferReader {
- public:
-  ChainBufferReader() = default;
-  explicit ChainBufferReader(ChainBufferNodeReaderPtr head)
-      : begin_(ChainBufferNodeAllocator::clone(head)), end_(std::move(head)) {
-    end_.advance_till_end();
-  }
-  ChainBufferReader(ChainBufferIterator begin, ChainBufferIterator end, bool sync_flag)
-      : begin_(std::move(begin)), end_(std::move(end)), sync_flag_(sync_flag) {
-  }
-  ChainBufferReader(ChainBufferNodeReaderPtr head, size_t size)
-      : begin_(ChainBufferNodeAllocator::clone(head)), end_(std::move(head)) {
-    auto advanced = end_.advance(size);
-    CHECK(advanced == size);
-  }
-  ChainBufferReader(ChainBufferReader &&) = default;
-  ChainBufferReader &operator=(ChainBufferReader &&) = default;
-  ChainBufferReader(const ChainBufferReader &) = delete;
-  ChainBufferReader &operator=(const ChainBufferReader &) = delete;
-  ~ChainBufferReader() = default;
-
-  ChainBufferReader clone() {
-    return ChainBufferReader(begin_.clone(), end_.clone(), sync_flag_);
-  }
-
-  Slice prepare_read() {
-    auto res = begin_.prepare_read();
-    res.truncate(size());
-    return res;
-  }
-
-  void confirm_read(size_t size) {
-    CHECK(size <= this->size());
-    begin_.confirm_read(size);
-  }
-
-  size_t advance(size_t offset, MutableSlice dest = MutableSlice());
-
-  size_t size() const {
-    return end_.offset() - begin_.offset();
-  }
-  bool empty() const {
-    return size() == 0;
-  }
-
-  void sync_with_writer() {
-    if (sync_flag_) {
-      end_.advance_till_end();
-    }
-  }
-  void advance_end(size_t size) {
-    end_.advance(size);
-  }
-  const ChainBufferIterator &begin() {
-    return begin_;
-  }
-  const ChainBufferIterator &end() {
-    return end_;
-  }
-
-  // Return [begin_, tail.begin_)
-  // *this = tail
-  ChainBufferReader cut_head(ChainBufferIterator pos) TD_WARN_UNUSED_RESULT {
-    auto tmp = begin_.clone();
-    begin_ = pos.clone();
-    return ChainBufferReader(std::move(tmp), std::move(pos), false);
-  }
-
-  ChainBufferReader cut_head(size_t offset) TD_WARN_UNUSED_RESULT {
-    CHECK(offset <= size());
-    auto it = begin_.clone();
-    it.advance(offset);
-    return cut_head(std::move(it));
-  }
-
-  BufferSlice move_as_buffer_slice() {
-    BufferSlice res;
-    if (begin_.head().size() >= size()) {
-      res = begin_.read_as_buffer_slice(size());
-    } else {
-      auto save_size = size();
-      res = BufferSlice{save_size};
-      advance(save_size, res.as_mutable_slice());
-    }
-    *this = ChainBufferReader();
-    return res;
-  }
-
-  BufferSlice read_as_buffer_slice(size_t limit = std::numeric_limits<size_t>::max()) {
-    return begin_.read_as_buffer_slice(min(limit, size()));
-  }
-
- private:
-  ChainBufferIterator begin_;  // use it for prepare_read. Fix result with size()
-  ChainBufferIterator end_;    // keep end as far as we can. use it for size()
-  bool sync_flag_ = true;      // auto sync of end_
-
-  // 1. We have fixed size. Than end_ is useless.
-  // 2. No fixed size. One has to sync end_ with end_.advance_till_end() in order to calculate size.
-};
-
-class ChainBufferWriter {
- public:
-  ChainBufferWriter()
-      : writer_(0)
-      , tail_(ChainBufferNodeAllocator::create(writer_.as_buffer_slice(), true))
-      , head_(ChainBufferNodeAllocator::clone(tail_)) {
-  }
-
-  MutableSlice prepare_append(size_t hint = 0) {
-    CHECK(!empty());
-    auto res = prepare_append_inplace();
-    if (res.empty()) {
-      return prepare_append_alloc(hint);
-    }
-    return res;
-  }
-  MutableSlice prepare_append_at_least(size_t size) {
-    CHECK(!empty());
-    auto res = prepare_append_inplace();
-    if (res.size() < size) {
-      return prepare_append_alloc(size);
-    }
-    return res;
-  }
-  MutableSlice prepare_append_inplace() {
-    CHECK(!empty());
-    return writer_.prepare_append();
-  }
-  MutableSlice prepare_append_alloc(size_t hint = 0) {
-    CHECK(!empty());
-    if (hint < (1 << 10)) {
-      hint = 1 << 12;
-    }
-    BufferWriter new_writer(hint);
-    auto new_tail = ChainBufferNodeAllocator::create(new_writer.as_buffer_slice(), true);
-    tail_->next_ = ChainBufferNodeAllocator::clone(new_tail);
-    writer_ = std::move(new_writer);
-    tail_ = std::move(new_tail);  // release tail_
-    return writer_.prepare_append();
-  }
-  void confirm_append(size_t size) {
-    CHECK(!empty());
-    writer_.confirm_append(size);
-  }
-
-  void append(Slice slice, size_t hint = 0) {
-    while (!slice.empty()) {
-      auto ready = prepare_append(td::max(slice.size(), hint));
-      auto shift = min(ready.size(), slice.size());
-      ready.copy_from(slice.substr(0, shift));
-      confirm_append(shift);
-      slice.remove_prefix(shift);
-    }
-  }
-
-  void append(BufferSlice slice) {
-    auto ready = prepare_append_inplace();
-    // TODO(perf): we have to store some stats in ChainBufferWriter
-    // for better append logic
-    if (slice.size() < (1 << 8) || ready.size() >= slice.size()) {
-      return append(slice.as_slice());
-    }
-
-    auto new_tail = ChainBufferNodeAllocator::create(std::move(slice), false);
-    tail_->next_ = ChainBufferNodeAllocator::clone(new_tail);
-    writer_ = BufferWriter();
-    tail_ = std::move(new_tail);  // release tail_
-  }
-
-  void append(ChainBufferReader &&reader) {
-    while (!reader.empty()) {
-      append(reader.read_as_buffer_slice());
-    }
-  }
-  void append(ChainBufferReader &reader) {
-    while (!reader.empty()) {
-      append(reader.read_as_buffer_slice());
-    }
-  }
-
-  ChainBufferReader extract_reader() {
-    CHECK(head_);
-    return ChainBufferReader(std::move(head_));
-  }
-
- private:
-  bool empty() const {
-    return !tail_;
-  }
-
-  BufferWriter writer_;
-  ChainBufferNodeWriterPtr tail_;
-  ChainBufferNodeReaderPtr head_;
-};
-
-class BufferBuilder {
- public:
-  BufferBuilder() = default;
-  BufferBuilder(Slice slice, size_t prepend_size, size_t append_size)
-      : buffer_writer_(slice, prepend_size, append_size) {
-  }
-  explicit BufferBuilder(BufferWriter &&buffer_writer) : buffer_writer_(std::move(buffer_writer)) {
-  }
-
-  void append(BufferSlice slice);
-  void append(Slice slice);
-
-  void prepend(BufferSlice slice);
-  void prepend(Slice slice);
-
-  template <class F>
-  void for_each(F &&f) const & {
-    for (auto i = to_prepend_.size(); i > 0; i--) {
-      f(to_prepend_[i - 1].as_slice());
-    }
-    if (!buffer_writer_.empty()) {
-      f(buffer_writer_.as_slice());
-    }
-    for (auto &slice : to_append_) {
-      f(slice.as_slice());
-    }
-  }
-  template <class F>
-  void for_each(F &&f) && {
-    for (auto i = to_prepend_.size(); i > 0; i--) {
-      f(std::move(to_prepend_[i - 1]));
-    }
-    if (!buffer_writer_.empty()) {
-      f(buffer_writer_.as_buffer_slice());
-    }
-    for (auto &slice : to_append_) {
-      f(std::move(slice));
-    }
-  }
-  size_t size() const;
-
-  BufferSlice extract();
-
- private:
-  BufferWriter buffer_writer_;
-  std::vector<BufferSlice> to_append_;
-  std::vector<BufferSlice> to_prepend_;
-
-  bool append_inplace(Slice slice);
-  void append_slow(BufferSlice slice);
-  bool prepend_inplace(Slice slice);
-  void prepend_slow(BufferSlice slice);
-};
-
-inline Slice as_slice(const BufferSlice &value) {
-  return value.as_slice();
-}
-
-inline MutableSlice as_mutable_slice(BufferSlice &value) {
-  return value.as_mutable_slice();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/check.cpp b/third-party/td/td/tdutils/td/utils/check.cpp
deleted file mode 100644
index 26bcd27ad3..0000000000
--- a/third-party/td/td/tdutils/td/utils/check.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/check.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-namespace td {
-namespace detail {
-
-void process_check_error(const char *message, const char *file, int line) {
-  ::td::Logger(*log_interface, log_options, VERBOSITY_NAME(FATAL), Slice(file), line, Slice())
-      << "Check `" << message << "` failed";
-  ::td::process_fatal_error(PSLICE() << "Check `" << message << "` failed in " << file << " at " << line << '\n');
-}
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/check.h b/third-party/td/td/tdutils/td/utils/check.h
deleted file mode 100644
index 4f077ce816..0000000000
--- a/third-party/td/td/tdutils/td/utils/check.h
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#define TD_DUMMY_CHECK(condition) ((void)(condition))
-
-#define CHECK_IMPL(condition, file, line)                      \
-  if (!(condition)) {                                          \
-    ::td::detail::process_check_error(#condition, file, line); \
-  }
-
-#define CHECK(condition) CHECK_IMPL(condition, __FILE__, __LINE__)
-
-// clang-format off
-#ifdef NDEBUG
-  #define DCHECK TD_DUMMY_CHECK
-#else
-  #define DCHECK CHECK
-#endif
-// clang-format on
-
-#define UNREACHABLE() ::td::detail::process_check_error("Unreachable", __FILE__, __LINE__)
-
-namespace td {
-namespace detail {
-
-[[noreturn]] void process_check_error(const char *message, const char *file, int line);
-
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/common.h b/third-party/td/td/tdutils/td/utils/common.h
deleted file mode 100644
index dd67abcd6f..0000000000
--- a/third-party/td/td/tdutils/td/utils/common.h
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/config.h"
-#include "td/utils/port/platform.h"
-
-// clang-format off
-#if TD_WINDOWS
-  #ifndef NTDDI_VERSION
-    #define NTDDI_VERSION 0x06020000
-  #endif
-  #ifndef WINVER
-    #define WINVER 0x0602
-  #endif
-  #ifndef _WIN32_WINNT
-    #define _WIN32_WINNT 0x0602
-  #endif
-  #ifndef NOMINMAX
-    #define NOMINMAX
-  #endif
-  #ifndef UNICODE
-    #define UNICODE
-  #endif
-  #ifndef _UNICODE
-    #define _UNICODE
-  #endif
-  #ifndef _CRT_SECURE_NO_WARNINGS
-    #define _CRT_SECURE_NO_WARNINGS
-  #endif
-
-  #ifdef __MINGW32__
-    #include <winsock2.h>
-    #include <ws2tcpip.h>
-
-    #include <mswsock.h>
-    #include <windows.h>
-  #else
-    #include <WinSock2.h>
-    #include <WS2tcpip.h>
-
-    #include <MSWSock.h>
-    #include <Windows.h>
-  #endif
-
-  #undef ERROR
-#endif
-// clang-format on
-
-#include "td/utils/check.h"
-#include "td/utils/int_types.h"
-#include "td/utils/unique_ptr.h"
-
-#include <string>
-#include <vector>
-
-#define TD_DEBUG
-
-#define TD_DEFINE_STR_IMPL(x) #x
-#define TD_DEFINE_STR(x) TD_DEFINE_STR_IMPL(x)
-#define TD_CONCAT_IMPL(x, y) x##y
-#define TD_CONCAT(x, y) TD_CONCAT_IMPL(x, y)
-
-// clang-format off
-#if TD_WINDOWS
-  #define TD_DIR_SLASH '\\'
-#else
-  #define TD_DIR_SLASH '/'
-#endif
-// clang-format on
-
-#if TD_USE_ASAN
-#include <sanitizer/lsan_interface.h>
-#define TD_LSAN_IGNORE(x) __lsan_ignore_object(x)
-#else
-#define TD_LSAN_IGNORE(x) (void)(x)
-#endif
-
-namespace td {
-
-inline bool likely(bool x) {
-#if TD_CLANG || TD_GCC || TD_INTEL
-  return __builtin_expect(x, 1);
-#else
-  return x;
-#endif
-}
-
-inline bool unlikely(bool x) {
-#if TD_CLANG || TD_GCC || TD_INTEL
-  return __builtin_expect(x, 0);
-#else
-  return x;
-#endif
-}
-
-// replace std::max and std::min to not have to include <algorithm> everywhere
-// as a side bonus, accept parameters by value, so constexpr variables aren't required to be instantiated
-template <class T>
-T max(T a, T b) {
-  return a < b ? b : a;
-}
-
-template <class T>
-T min(T a, T b) {
-  return a < b ? a : b;
-}
-
-using string = std::string;
-
-template <class ValueT>
-using vector = std::vector<ValueT>;
-
-struct Unit {};
-
-struct Auto {
-  template <class ToT>
-  operator ToT() const {
-    return ToT();
-  }
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/config.h.in b/third-party/td/td/tdutils/td/utils/config.h.in
deleted file mode 100644
index f8b89aeb5c..0000000000
--- a/third-party/td/td/tdutils/td/utils/config.h.in
+++ /dev/null
@@ -1,8 +0,0 @@
-#pragma once
-
-#cmakedefine01 TD_HAVE_OPENSSL
-#cmakedefine01 TD_HAVE_ZLIB
-#cmakedefine01 TD_HAVE_CRC32C
-#cmakedefine01 TD_HAVE_COROUTINES
-#cmakedefine01 TD_HAVE_ABSL
-#cmakedefine01 TD_FD_DEBUG
diff --git a/third-party/td/td/tdutils/td/utils/crypto.cpp b/third-party/td/td/tdutils/td/utils/crypto.cpp
deleted file mode 100644
index bbaef2466c..0000000000
--- a/third-party/td/td/tdutils/td/utils/crypto.cpp
+++ /dev/null
@@ -1,1397 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/crypto.h"
-
-#include "td/utils/as.h"
-#include "td/utils/BigNum.h"
-#include "td/utils/bits.h"
-#include "td/utils/common.h"
-#include "td/utils/Destructor.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/RwMutex.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-
-#if TD_HAVE_OPENSSL
-#include <openssl/aes.h>
-#include <openssl/bio.h>
-#include <openssl/crypto.h>
-#include <openssl/err.h>
-#include <openssl/evp.h>
-#include <openssl/hmac.h>
-#include <openssl/md5.h>
-#include <openssl/opensslv.h>
-#include <openssl/pem.h>
-#include <openssl/rsa.h>
-#include <openssl/sha.h>
-#endif
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-#include <openssl/core_names.h>
-#include <openssl/params.h>
-#endif
-
-#if TD_HAVE_ZLIB
-#include <zlib.h>
-#endif
-
-#if TD_HAVE_CRC32C
-#include "crc32c/crc32c.h"
-#endif
-
-#include <algorithm>
-#include <cerrno>
-#include <cstring>
-#include <mutex>
-#include <utility>
-
-namespace td {
-
-static uint64 pq_gcd(uint64 a, uint64 b) {
-  if (a == 0) {
-    return b;
-  }
-  while ((a & 1) == 0) {
-    a >>= 1;
-  }
-  DCHECK((b & 1) != 0);
-
-  while (true) {
-    if (a > b) {
-      a = (a - b) >> 1;
-      while ((a & 1) == 0) {
-        a >>= 1;
-      }
-    } else if (b > a) {
-      b = (b - a) >> 1;
-      while ((b & 1) == 0) {
-        b >>= 1;
-      }
-    } else {
-      return a;
-    }
-  }
-}
-
-// returns (c + a * b) % pq
-static uint64 pq_add_mul(uint64 c, uint64 a, uint64 b, uint64 pq) {
-  while (b) {
-    if (b & 1) {
-      c += a;
-      if (c >= pq) {
-        c -= pq;
-      }
-    }
-    a += a;
-    if (a >= pq) {
-      a -= pq;
-    }
-    b >>= 1;
-  }
-  return c;
-}
-
-uint64 pq_factorize(uint64 pq) {
-  if (pq <= 2 || pq > (static_cast<uint64>(1) << 63)) {
-    return 1;
-  }
-  if ((pq & 1) == 0) {
-    return 2;
-  }
-  uint64 g = 0;
-  for (int i = 0, iter = 0; i < 3 || iter < 1000; i++) {
-    uint64 q = Random::fast(17, 32) % (pq - 1);
-    uint64 x = Random::fast_uint64() % (pq - 1) + 1;
-    uint64 y = x;
-    int lim = 1 << (min(5, i) + 18);
-    for (int j = 1; j < lim; j++) {
-      iter++;
-      x = pq_add_mul(q, x, x, pq);
-      uint64 z = x < y ? pq + x - y : x - y;
-      g = pq_gcd(z, pq);
-      if (g != 1) {
-        break;
-      }
-
-      if (!(j & (j - 1))) {
-        y = x;
-      }
-    }
-    if (g > 1 && g < pq) {
-      break;
-    }
-  }
-  if (g != 0) {
-    uint64 other = pq / g;
-    if (other < g) {
-      g = other;
-    }
-  }
-  return g;
-}
-
-#if TD_HAVE_OPENSSL
-void init_crypto() {
-  static bool is_inited = [] {
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-    bool result = OPENSSL_init_crypto(0, nullptr) != 0;
-#else
-    OpenSSL_add_all_algorithms();
-    bool result = true;
-#endif
-    clear_openssl_errors("Init crypto");
-    return result;
-  }();
-  CHECK(is_inited);
-}
-
-template <class FromT>
-static string as_big_endian_string(const FromT &from) {
-  char res[sizeof(FromT)];
-  as<FromT>(res) = from;
-
-  size_t i = sizeof(FromT);
-  while (i && res[i - 1] == 0) {
-    i--;
-  }
-
-  std::reverse(res, res + i);
-  return string(res, res + i);
-}
-
-static int pq_factorize_big(Slice pq_str, string *p_str, string *q_str) {
-  // TODO: qsieve?
-  // do not work for pq == 1
-  BigNumContext context;
-  BigNum a;
-  BigNum b;
-  BigNum p;
-  BigNum q;
-  BigNum one;
-  one.set_value(1);
-
-  BigNum pq = BigNum::from_binary(pq_str);
-
-  bool found = false;
-  for (int i = 0, iter = 0; !found && (i < 3 || iter < 1000); i++) {
-    int32 t = Random::fast(17, 32);
-    a.set_value(Random::fast_uint32());
-    b = a;
-
-    int32 lim = 1 << (i + 23);
-    for (int j = 1; j < lim; j++) {
-      iter++;
-      BigNum::mod_mul(a, a, a, pq, context);
-      a += t;
-      if (BigNum::compare(a, pq) >= 0) {
-        BigNum tmp;
-        BigNum::sub(tmp, a, pq);
-        a = std::move(tmp);
-      }
-      if (BigNum::compare(a, b) > 0) {
-        BigNum::sub(q, a, b);
-      } else {
-        BigNum::sub(q, b, a);
-      }
-      BigNum::gcd(p, q, pq, context);
-      if (BigNum::compare(p, one) != 0) {
-        found = true;
-        break;
-      }
-      if ((j & (j - 1)) == 0) {
-        b = a;
-      }
-    }
-  }
-
-  if (found) {
-    BigNum::div(&q, nullptr, pq, p, context);
-    if (BigNum::compare(p, q) > 0) {
-      std::swap(p, q);
-    }
-
-    *p_str = p.to_binary();
-    *q_str = q.to_binary();
-
-    return 0;
-  }
-
-  return -1;
-}
-
-int pq_factorize(Slice pq_str, string *p_str, string *q_str) {
-  size_t size = pq_str.size();
-  if (static_cast<int>(size) > 8 || (static_cast<int>(size) == 8 && (pq_str.begin()[0] & 128) != 0)) {
-    return pq_factorize_big(pq_str, p_str, q_str);
-  }
-
-  auto ptr = pq_str.ubegin();
-  uint64 pq = 0;
-  for (int i = 0; i < static_cast<int>(size); i++) {
-    pq = (pq << 8) | ptr[i];
-  }
-
-  uint64 p = pq_factorize(pq);
-  if (p == 0 || pq % p != 0) {
-    return -1;
-  }
-  *p_str = as_big_endian_string(p);
-  *q_str = as_big_endian_string(pq / p);
-
-  // std::string p2, q2;
-  // pq_factorize_big(pq_str, &p2, &q2);
-  // CHECK(*p_str == p2);
-  // CHECK(*q_str == q2);
-  return 0;
-}
-
-struct AesBlock {
-  uint64 hi;
-  uint64 lo;
-
-  uint8 *raw() {
-    return reinterpret_cast<uint8 *>(this);
-  }
-  const uint8 *raw() const {
-    return reinterpret_cast<const uint8 *>(this);
-  }
-  Slice as_slice() const {
-    return Slice(raw(), AES_BLOCK_SIZE);
-  }
-
-  AesBlock operator^(const AesBlock &b) const {
-    AesBlock res;
-    res.hi = hi ^ b.hi;
-    res.lo = lo ^ b.lo;
-    return res;
-  }
-  void operator^=(const AesBlock &b) {
-    hi ^= b.hi;
-    lo ^= b.lo;
-  }
-
-  void load(const uint8 *from) {
-    *this = as<AesBlock>(from);
-  }
-  void store(uint8 *to) {
-    as<AesBlock>(to) = *this;
-  }
-
-  AesBlock inc() const {
-#if SIZE_MAX == UINT64_MAX
-    AesBlock res;
-    res.lo = host_to_big_endian64(big_endian_to_host64(lo) + 1);
-    if (res.lo == 0) {
-      res.hi = host_to_big_endian64(big_endian_to_host64(hi) + 1);
-    } else {
-      res.hi = hi;
-    }
-    return res;
-#else
-    AesBlock res = *this;
-    auto ptr = res.raw();
-    if (++ptr[15] == 0) {
-      for (int i = 14; i >= 0; i--) {
-        if (++ptr[i] != 0) {
-          break;
-        }
-      }
-    }
-    return res;
-#endif
-  }
-};
-static_assert(sizeof(AesBlock) == 16, "");
-static_assert(sizeof(AesBlock) == AES_BLOCK_SIZE, "");
-
-class Evp {
- public:
-  Evp() {
-    ctx_ = EVP_CIPHER_CTX_new();
-    LOG_IF(FATAL, ctx_ == nullptr);
-  }
-  Evp(const Evp &) = delete;
-  Evp &operator=(const Evp &) = delete;
-  Evp(Evp &&) = delete;
-  Evp &operator=(Evp &&) = delete;
-  ~Evp() {
-    CHECK(ctx_ != nullptr);
-    EVP_CIPHER_CTX_free(ctx_);
-  }
-
-  void init_encrypt_ecb(Slice key) {
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-    static TD_THREAD_LOCAL const EVP_CIPHER *evp_cipher;
-    if (unlikely(evp_cipher == nullptr)) {
-      init_thread_local_evp_cipher(evp_cipher, "AES-256-ECB");
-    }
-#else
-    const EVP_CIPHER *evp_cipher = EVP_aes_256_ecb();
-#endif
-    init(true, evp_cipher, key);
-  }
-
-  void init_decrypt_ecb(Slice key) {
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-    static TD_THREAD_LOCAL const EVP_CIPHER *evp_cipher;
-    if (unlikely(evp_cipher == nullptr)) {
-      init_thread_local_evp_cipher(evp_cipher, "AES-256-ECB");
-    }
-#else
-    const EVP_CIPHER *evp_cipher = EVP_aes_256_ecb();
-#endif
-    init(false, evp_cipher, key);
-  }
-
-  void init_encrypt_cbc(Slice key) {
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-    static TD_THREAD_LOCAL const EVP_CIPHER *evp_cipher;
-    if (unlikely(evp_cipher == nullptr)) {
-      init_thread_local_evp_cipher(evp_cipher, "AES-256-CBC");
-    }
-#else
-    const EVP_CIPHER *evp_cipher = EVP_aes_256_cbc();
-#endif
-    init(true, evp_cipher, key);
-  }
-
-  void init_decrypt_cbc(Slice key) {
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-    static TD_THREAD_LOCAL const EVP_CIPHER *evp_cipher;
-    if (unlikely(evp_cipher == nullptr)) {
-      init_thread_local_evp_cipher(evp_cipher, "AES-256-CBC");
-    }
-#else
-    const EVP_CIPHER *evp_cipher = EVP_aes_256_cbc();
-#endif
-    init(false, evp_cipher, key);
-  }
-
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  void init_encrypt_ctr(Slice key) {
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-    static TD_THREAD_LOCAL const EVP_CIPHER *evp_cipher;
-    if (unlikely(evp_cipher == nullptr)) {
-      init_thread_local_evp_cipher(evp_cipher, "AES-256-CTR");
-    }
-#else
-    const EVP_CIPHER *evp_cipher = EVP_aes_256_ctr();
-#endif
-    init(true, evp_cipher, key);
-  }
-#endif
-
-  void init_iv(Slice iv) {
-    int res = EVP_CipherInit_ex(ctx_, nullptr, nullptr, nullptr, iv.ubegin(), -1);
-    LOG_IF(FATAL, res != 1);
-  }
-
-  void encrypt(const uint8 *src, uint8 *dst, int size) {
-    int len;
-    int res = EVP_EncryptUpdate(ctx_, dst, &len, src, size);
-    LOG_IF(FATAL, res != 1);
-    CHECK(len == size);
-  }
-
-  void decrypt(const uint8 *src, uint8 *dst, int size) {
-    CHECK(size % AES_BLOCK_SIZE == 0);
-    int len;
-    int res = EVP_DecryptUpdate(ctx_, dst, &len, src, size);
-    LOG_IF(FATAL, res != 1);
-    CHECK(len == size);
-  }
-
- private:
-  EVP_CIPHER_CTX *ctx_{nullptr};
-
-  void init(bool is_encrypt, const EVP_CIPHER *evp_cipher, Slice key) {
-    int res = EVP_CipherInit_ex(ctx_, evp_cipher, nullptr, key.ubegin(), nullptr, is_encrypt ? 1 : 0);
-    LOG_IF(FATAL, res != 1);
-    EVP_CIPHER_CTX_set_padding(ctx_, 0);
-  }
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  static void init_thread_local_evp_cipher(const EVP_CIPHER *&evp_cipher, const char *algorithm) {
-    evp_cipher = EVP_CIPHER_fetch(nullptr, algorithm, nullptr);
-    LOG_IF(FATAL, evp_cipher == nullptr);
-    detail::add_thread_local_destructor(create_destructor([&evp_cipher]() mutable {
-      EVP_CIPHER_free(const_cast<EVP_CIPHER *>(evp_cipher));
-      evp_cipher = nullptr;
-    }));
-  }
-#endif
-};
-
-struct AesState::Impl {
-  Evp evp;
-};
-
-AesState::AesState() = default;
-AesState::AesState(AesState &&) noexcept = default;
-AesState &AesState::operator=(AesState &&) noexcept = default;
-AesState::~AesState() = default;
-
-void AesState::init(Slice key, bool encrypt) {
-  CHECK(key.size() == 32);
-  if (!impl_) {
-    impl_ = make_unique<Impl>();
-  }
-  if (encrypt) {
-    impl_->evp.init_encrypt_ecb(key);
-  } else {
-    impl_->evp.init_decrypt_ecb(key);
-  }
-}
-
-void AesState::encrypt(const uint8 *src, uint8 *dst, int size) {
-  CHECK(impl_);
-  impl_->evp.encrypt(src, dst, size);
-}
-
-void AesState::decrypt(const uint8 *src, uint8 *dst, int size) {
-  CHECK(impl_);
-  impl_->evp.decrypt(src, dst, size);
-}
-
-class AesIgeStateImpl {
- public:
-  void init(Slice key, Slice iv, bool encrypt) {
-    CHECK(key.size() == 32);
-    CHECK(iv.size() == 32);
-    if (encrypt) {
-      evp_.init_encrypt_cbc(key);
-    } else {
-      evp_.init_decrypt_ecb(key);
-    }
-
-    encrypted_iv_.load(iv.ubegin());
-    plaintext_iv_.load(iv.ubegin() + AES_BLOCK_SIZE);
-  }
-
-  void get_iv(MutableSlice iv) {
-    CHECK(iv.size() == 32);
-    encrypted_iv_.store(iv.ubegin());
-    plaintext_iv_.store(iv.ubegin() + AES_BLOCK_SIZE);
-  }
-
-  void encrypt(Slice from, MutableSlice to) {
-    CHECK(from.size() % AES_BLOCK_SIZE == 0);
-    CHECK(to.size() >= from.size());
-    auto len = to.size() / AES_BLOCK_SIZE;
-    auto in = from.ubegin();
-    auto out = to.ubegin();
-
-    static constexpr size_t BLOCK_COUNT = 31;
-    while (len != 0) {
-      AesBlock data[BLOCK_COUNT];
-      AesBlock data_xored[BLOCK_COUNT];
-
-      auto count = td::min(BLOCK_COUNT, len);
-      std::memcpy(data, in, AES_BLOCK_SIZE * count);
-      data_xored[0] = data[0];
-      if (count > 1) {
-        data_xored[1] = plaintext_iv_ ^ data[1];
-        for (size_t i = 2; i < count; i++) {
-          data_xored[i] = data[i - 2] ^ data[i];
-        }
-      }
-
-      evp_.init_iv(encrypted_iv_.as_slice());
-      auto inlen = static_cast<int>(AES_BLOCK_SIZE * count);
-      evp_.encrypt(data_xored[0].raw(), data_xored[0].raw(), inlen);
-
-      data_xored[0] ^= plaintext_iv_;
-      for (size_t i = 1; i < count; i++) {
-        data_xored[i] ^= data[i - 1];
-      }
-      plaintext_iv_ = data[count - 1];
-      encrypted_iv_ = data_xored[count - 1];
-
-      std::memcpy(out, data_xored, AES_BLOCK_SIZE * count);
-      len -= count;
-      in += AES_BLOCK_SIZE * count;
-      out += AES_BLOCK_SIZE * count;
-    }
-  }
-
-  void decrypt(Slice from, MutableSlice to) {
-    CHECK(from.size() % AES_BLOCK_SIZE == 0);
-    CHECK(to.size() >= from.size());
-    auto len = to.size() / AES_BLOCK_SIZE;
-    auto in = from.ubegin();
-    auto out = to.ubegin();
-
-    AesBlock encrypted;
-
-    while (len) {
-      encrypted.load(in);
-
-      plaintext_iv_ ^= encrypted;
-      evp_.decrypt(plaintext_iv_.raw(), plaintext_iv_.raw(), AES_BLOCK_SIZE);
-      plaintext_iv_ ^= encrypted_iv_;
-
-      plaintext_iv_.store(out);
-      encrypted_iv_ = encrypted;
-
-      --len;
-      in += AES_BLOCK_SIZE;
-      out += AES_BLOCK_SIZE;
-    }
-  }
-
- private:
-  Evp evp_;
-  AesBlock encrypted_iv_;
-  AesBlock plaintext_iv_;
-};
-
-AesIgeState::AesIgeState() = default;
-AesIgeState::AesIgeState(AesIgeState &&) noexcept = default;
-AesIgeState &AesIgeState::operator=(AesIgeState &&) noexcept = default;
-AesIgeState::~AesIgeState() = default;
-
-void AesIgeState::init(Slice key, Slice iv, bool encrypt) {
-  if (!impl_) {
-    impl_ = make_unique<AesIgeStateImpl>();
-  }
-
-  impl_->init(key, iv, encrypt);
-}
-
-void AesIgeState::encrypt(Slice from, MutableSlice to) {
-  impl_->encrypt(from, to);
-}
-
-void AesIgeState::decrypt(Slice from, MutableSlice to) {
-  impl_->decrypt(from, to);
-}
-
-void aes_ige_encrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) {
-  AesIgeStateImpl state;
-  state.init(aes_key, aes_iv, true);
-  state.encrypt(from, to);
-  state.get_iv(aes_iv);
-}
-
-void aes_ige_decrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) {
-  AesIgeStateImpl state;
-  state.init(aes_key, aes_iv, false);
-  state.decrypt(from, to);
-  state.get_iv(aes_iv);
-}
-
-void aes_cbc_encrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) {
-  CHECK(from.size() <= to.size());
-  CHECK(from.size() % 16 == 0);
-
-  Evp evp;
-  evp.init_encrypt_cbc(aes_key);
-  evp.init_iv(aes_iv);
-  evp.encrypt(from.ubegin(), to.ubegin(), narrow_cast<int>(from.size()));
-  aes_iv.copy_from(to.substr(from.size() - 16));
-}
-
-void aes_cbc_decrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to) {
-  CHECK(from.size() <= to.size());
-  CHECK(from.size() % 16 == 0);
-
-  Evp evp;
-  evp.init_decrypt_cbc(aes_key);
-  evp.init_iv(aes_iv);
-  aes_iv.copy_from(from.substr(from.size() - 16));
-  evp.decrypt(from.ubegin(), to.ubegin(), narrow_cast<int>(from.size()));
-}
-
-struct AesCbcState::Impl {
-  Evp evp_;
-};
-
-AesCbcState::AesCbcState(Slice key256, Slice iv128) : raw_{SecureString(key256), SecureString(iv128)} {
-  CHECK(raw_.key.size() == 32);
-  CHECK(raw_.iv.size() == 16);
-}
-
-AesCbcState::AesCbcState(AesCbcState &&) noexcept = default;
-AesCbcState &AesCbcState::operator=(AesCbcState &&) noexcept = default;
-AesCbcState::~AesCbcState() = default;
-
-void AesCbcState::encrypt(Slice from, MutableSlice to) {
-  if (from.empty()) {
-    return;
-  }
-
-  CHECK(from.size() <= to.size());
-  CHECK(from.size() % 16 == 0);
-  if (ctx_ == nullptr) {
-    ctx_ = make_unique<AesCbcState::Impl>();
-    ctx_->evp_.init_encrypt_cbc(raw_.key.as_slice());
-    ctx_->evp_.init_iv(raw_.iv.as_slice());
-    is_encrypt_ = true;
-  } else {
-    CHECK(is_encrypt_);
-  }
-  ctx_->evp_.encrypt(from.ubegin(), to.ubegin(), narrow_cast<int>(from.size()));
-  raw_.iv.as_mutable_slice().copy_from(to.substr(from.size() - 16));
-}
-
-void AesCbcState::decrypt(Slice from, MutableSlice to) {
-  if (from.empty()) {
-    return;
-  }
-
-  CHECK(from.size() <= to.size());
-  CHECK(from.size() % 16 == 0);
-  if (ctx_ == nullptr) {
-    ctx_ = make_unique<AesCbcState::Impl>();
-    ctx_->evp_.init_decrypt_cbc(raw_.key.as_slice());
-    ctx_->evp_.init_iv(raw_.iv.as_slice());
-    is_encrypt_ = false;
-  } else {
-    CHECK(!is_encrypt_);
-  }
-  raw_.iv.as_mutable_slice().copy_from(from.substr(from.size() - 16));
-  ctx_->evp_.decrypt(from.ubegin(), to.ubegin(), narrow_cast<int>(from.size()));
-}
-
-struct AesCtrState::Impl {
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  Evp evp_;
-#else
-  AES_KEY aes_key_;
-  uint8 counter_[AES_BLOCK_SIZE];
-  uint8 encrypted_counter_[AES_BLOCK_SIZE];
-  uint8 current_pos_;
-#endif
-};
-
-AesCtrState::AesCtrState() = default;
-AesCtrState::AesCtrState(AesCtrState &&) noexcept = default;
-AesCtrState &AesCtrState::operator=(AesCtrState &&) noexcept = default;
-AesCtrState::~AesCtrState() = default;
-
-void AesCtrState::init(Slice key, Slice iv) {
-  CHECK(key.size() == 32);
-  CHECK(iv.size() == 16);
-  ctx_ = make_unique<AesCtrState::Impl>();
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  ctx_->evp_.init_encrypt_ctr(key);
-  ctx_->evp_.init_iv(iv);
-#else
-  if (AES_set_encrypt_key(key.ubegin(), 256, &ctx_->aes_key_) < 0) {
-    LOG(FATAL) << "Failed to set encrypt key";
-  }
-  MutableSlice(ctx_->counter_, AES_BLOCK_SIZE).copy_from(iv);
-  ctx_->current_pos_ = 0;
-#endif
-}
-
-void AesCtrState::encrypt(Slice from, MutableSlice to) {
-  CHECK(from.size() <= to.size());
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  ctx_->evp_.encrypt(from.ubegin(), to.ubegin(), narrow_cast<int>(from.size()));
-#else
-  auto from_ptr = from.ubegin();
-  auto to_ptr = to.ubegin();
-  for (size_t i = 0; i < from.size(); i++) {
-    if (ctx_->current_pos_ == 0) {
-      AES_encrypt(ctx_->counter_, ctx_->encrypted_counter_, &ctx_->aes_key_);
-      for (int j = 15; j >= 0; j--) {
-        if (++ctx_->counter_[j] != 0) {
-          break;
-        }
-      }
-    }
-    to_ptr[i] = static_cast<uint8>(from_ptr[i] ^ ctx_->encrypted_counter_[ctx_->current_pos_]);
-    ctx_->current_pos_ = (ctx_->current_pos_ + 1) & 15;
-  }
-#endif
-}
-
-void AesCtrState::decrypt(Slice from, MutableSlice to) {
-  encrypt(from, to);
-}
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-static void make_digest(Slice data, MutableSlice output, const EVP_MD_CTX *evp_md_ctx) {
-  static TD_THREAD_LOCAL EVP_MD_CTX *ctx;
-  if (unlikely(ctx == nullptr)) {
-    ctx = EVP_MD_CTX_new();
-    LOG_IF(FATAL, ctx == nullptr);
-    detail::add_thread_local_destructor(create_destructor([] {
-      EVP_MD_CTX_free(ctx);
-      ctx = nullptr;
-    }));
-  }
-  int res = EVP_MD_CTX_copy_ex(ctx, evp_md_ctx);
-  LOG_IF(FATAL, res != 1);
-  res = EVP_DigestUpdate(ctx, data.ubegin(), data.size());
-  LOG_IF(FATAL, res != 1);
-  res = EVP_DigestFinal_ex(ctx, output.ubegin(), nullptr);
-  LOG_IF(FATAL, res != 1);
-  EVP_MD_CTX_reset(ctx);
-}
-
-static void init_thread_local_evp_md_ctx(const EVP_MD_CTX *&evp_md_ctx, const char *algorithm) {
-  EVP_MD *evp_md = EVP_MD_fetch(nullptr, algorithm, nullptr);
-  LOG_IF(FATAL, evp_md == nullptr);
-  evp_md_ctx = EVP_MD_CTX_new();
-  int res = EVP_DigestInit_ex(const_cast<EVP_MD_CTX *>(evp_md_ctx), evp_md, nullptr);
-  LOG_IF(FATAL, res != 1);
-  EVP_MD_free(evp_md);
-  detail::add_thread_local_destructor(create_destructor([&evp_md_ctx]() mutable {
-    EVP_MD_CTX_free(const_cast<EVP_MD_CTX *>(evp_md_ctx));
-    evp_md_ctx = nullptr;
-  }));
-}
-
-static void init_thread_local_evp_mac_ctx(EVP_MAC_CTX *&evp_mac_ctx, const char *digest) {
-  EVP_MAC *hmac = EVP_MAC_fetch(nullptr, "HMAC", nullptr);
-  LOG_IF(FATAL, hmac == nullptr);
-  evp_mac_ctx = EVP_MAC_CTX_new(hmac);
-  LOG_IF(FATAL, evp_mac_ctx == nullptr);
-  OSSL_PARAM params[2];
-  params[0] = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_DIGEST, const_cast<char *>(digest), 0);
-  params[1] = OSSL_PARAM_construct_end();
-  EVP_MAC_CTX_set_params(evp_mac_ctx, params);
-  EVP_MAC_free(hmac);
-  detail::add_thread_local_destructor(create_destructor([&evp_mac_ctx]() mutable {
-    EVP_MAC_CTX_free(const_cast<EVP_MAC_CTX *>(evp_mac_ctx));
-    evp_mac_ctx = nullptr;
-  }));
-}
-#endif
-
-void sha1(Slice data, unsigned char output[20]) {
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  static TD_THREAD_LOCAL const EVP_MD_CTX *evp_md_ctx;
-  if (unlikely(evp_md_ctx == nullptr)) {
-    init_thread_local_evp_md_ctx(evp_md_ctx, "sha1");
-  }
-  make_digest(data, MutableSlice(output, 20), evp_md_ctx);
-#else
-  auto result = SHA1(data.ubegin(), data.size(), output);
-  CHECK(result == output);
-#endif
-}
-
-void sha256(Slice data, MutableSlice output) {
-  CHECK(output.size() >= 32);
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  static TD_THREAD_LOCAL const EVP_MD_CTX *evp_md_ctx;
-  if (unlikely(evp_md_ctx == nullptr)) {
-    init_thread_local_evp_md_ctx(evp_md_ctx, "sha256");
-  }
-  make_digest(data, output, evp_md_ctx);
-#else
-  auto result = SHA256(data.ubegin(), data.size(), output.ubegin());
-  CHECK(result == output.ubegin());
-#endif
-}
-
-void sha512(Slice data, MutableSlice output) {
-  CHECK(output.size() >= 64);
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  static TD_THREAD_LOCAL const EVP_MD_CTX *evp_md_ctx;
-  if (unlikely(evp_md_ctx == nullptr)) {
-    init_thread_local_evp_md_ctx(evp_md_ctx, "sha512");
-  }
-  make_digest(data, output, evp_md_ctx);
-#else
-  auto result = SHA512(data.ubegin(), data.size(), output.ubegin());
-  CHECK(result == output.ubegin());
-#endif
-}
-
-string sha1(Slice data) {
-  string result(20, '\0');
-  sha1(data, MutableSlice(result).ubegin());
-  return result;
-}
-
-string sha256(Slice data) {
-  string result(32, '\0');
-  sha256(data, result);
-  return result;
-}
-
-string sha512(Slice data) {
-  string result(64, '\0');
-  sha512(data, result);
-  return result;
-}
-
-class Sha256State::Impl {
- public:
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  EVP_MD_CTX *ctx_;
-
-  Impl() {
-    ctx_ = EVP_MD_CTX_new();
-    LOG_IF(FATAL, ctx_ == nullptr);
-  }
-  ~Impl() {
-    CHECK(ctx_ != nullptr);
-    EVP_MD_CTX_free(ctx_);
-  }
-#else
-  SHA256_CTX ctx_;
-  Impl() = default;
-  ~Impl() = default;
-#endif
-
-  Impl(const Impl &) = delete;
-  Impl &operator=(const Impl &) = delete;
-  Impl(Impl &&) = delete;
-  Impl &operator=(Impl &&) = delete;
-};
-
-Sha256State::Sha256State() = default;
-
-Sha256State::Sha256State(Sha256State &&other) noexcept {
-  impl_ = std::move(other.impl_);
-  is_inited_ = other.is_inited_;
-  other.is_inited_ = false;
-}
-
-Sha256State &Sha256State::operator=(Sha256State &&other) noexcept {
-  Sha256State copy(std::move(other));
-  using std::swap;
-  swap(impl_, copy.impl_);
-  swap(is_inited_, copy.is_inited_);
-  return *this;
-}
-
-Sha256State::~Sha256State() {
-  if (is_inited_) {
-    char result[32];
-    extract(MutableSlice{result, 32});
-    CHECK(!is_inited_);
-  }
-}
-
-void Sha256State::init() {
-  if (!impl_) {
-    impl_ = make_unique<Sha256State::Impl>();
-  }
-  CHECK(!is_inited_);
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  static TD_THREAD_LOCAL const EVP_MD_CTX *evp_md_ctx;
-  if (unlikely(evp_md_ctx == nullptr)) {
-    init_thread_local_evp_md_ctx(evp_md_ctx, "sha256");
-  }
-  int err = EVP_MD_CTX_copy_ex(impl_->ctx_, evp_md_ctx);
-#else
-  int err = SHA256_Init(&impl_->ctx_);
-#endif
-  LOG_IF(FATAL, err != 1);
-  is_inited_ = true;
-}
-
-void Sha256State::feed(Slice data) {
-  CHECK(impl_);
-  CHECK(is_inited_);
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  int err = EVP_DigestUpdate(impl_->ctx_, data.ubegin(), data.size());
-#else
-  int err = SHA256_Update(&impl_->ctx_, data.ubegin(), data.size());
-#endif
-  LOG_IF(FATAL, err != 1);
-}
-
-void Sha256State::extract(MutableSlice output, bool destroy) {
-  CHECK(output.size() >= 32);
-  CHECK(impl_);
-  CHECK(is_inited_);
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  int err = EVP_DigestFinal_ex(impl_->ctx_, output.ubegin(), nullptr);
-#else
-  int err = SHA256_Final(output.ubegin(), &impl_->ctx_);
-#endif
-  LOG_IF(FATAL, err != 1);
-  is_inited_ = false;
-  if (destroy) {
-    impl_.reset();
-  }
-}
-
-void md5(Slice input, MutableSlice output) {
-  CHECK(output.size() >= 16);
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  static TD_THREAD_LOCAL const EVP_MD_CTX *evp_md_ctx;
-  if (unlikely(evp_md_ctx == nullptr)) {
-    init_thread_local_evp_md_ctx(evp_md_ctx, "md5");
-  }
-  make_digest(input, output, evp_md_ctx);
-#else
-  auto result = MD5(input.ubegin(), input.size(), output.ubegin());
-  CHECK(result == output.ubegin());
-#endif
-}
-
-static void pbkdf2_impl(Slice password, Slice salt, int iteration_count, MutableSlice dest, const EVP_MD *evp_md) {
-  CHECK(evp_md != nullptr);
-  int hash_size = EVP_MD_size(evp_md);
-  CHECK(dest.size() == static_cast<size_t>(hash_size));
-  CHECK(iteration_count > 0);
-#if OPENSSL_VERSION_NUMBER < 0x10000000L
-  HMAC_CTX ctx;
-  HMAC_CTX_init(&ctx);
-  unsigned char counter[4] = {0, 0, 0, 1};
-  auto password_len = narrow_cast<int>(password.size());
-  HMAC_Init_ex(&ctx, password.data(), password_len, evp_md, nullptr);
-  HMAC_Update(&ctx, salt.ubegin(), narrow_cast<int>(salt.size()));
-  HMAC_Update(&ctx, counter, 4);
-  HMAC_Final(&ctx, dest.ubegin(), nullptr);
-  HMAC_CTX_cleanup(&ctx);
-
-  if (iteration_count > 1) {
-    CHECK(hash_size <= 64);
-    unsigned char buf[64];
-    std::copy(dest.ubegin(), dest.uend(), buf);
-    for (int iter = 1; iter < iteration_count; iter++) {
-      if (HMAC(evp_md, password.data(), password_len, buf, hash_size, buf, nullptr) == nullptr) {
-        LOG(FATAL) << "Failed to HMAC";
-      }
-      for (int i = 0; i < hash_size; i++) {
-        dest[i] = static_cast<unsigned char>(dest[i] ^ buf[i]);
-      }
-    }
-  }
-#else
-  int err = PKCS5_PBKDF2_HMAC(password.data(), narrow_cast<int>(password.size()), salt.ubegin(),
-                              narrow_cast<int>(salt.size()), iteration_count, evp_md, narrow_cast<int>(dest.size()),
-                              dest.ubegin());
-  LOG_IF(FATAL, err != 1);
-#endif
-}
-
-void pbkdf2_sha256(Slice password, Slice salt, int iteration_count, MutableSlice dest) {
-  pbkdf2_impl(password, salt, iteration_count, dest, EVP_sha256());
-}
-
-void pbkdf2_sha512(Slice password, Slice salt, int iteration_count, MutableSlice dest) {
-  pbkdf2_impl(password, salt, iteration_count, dest, EVP_sha512());
-}
-
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-static void hmac_impl_finish(EVP_MAC_CTX *ctx, Slice key, Slice message, MutableSlice dest) {
-  int res = EVP_MAC_init(ctx, const_cast<unsigned char *>(key.ubegin()), key.size(), nullptr);
-  LOG_IF(FATAL, res != 1);
-  res = EVP_MAC_update(ctx, message.ubegin(), message.size());
-  LOG_IF(FATAL, res != 1);
-  res = EVP_MAC_final(ctx, dest.ubegin(), nullptr, dest.size());
-  LOG_IF(FATAL, res != 1);
-}
-
-static void hmac_impl_sha256(Slice key, Slice message, MutableSlice dest) {
-  static TD_THREAD_LOCAL EVP_MAC_CTX *ctx = nullptr;
-  if (ctx == nullptr) {
-    init_thread_local_evp_mac_ctx(ctx, "SHA256");
-  }
-  hmac_impl_finish(ctx, key, message, dest);
-}
-
-static void hmac_impl_sha512(Slice key, Slice message, MutableSlice dest) {
-  static TD_THREAD_LOCAL EVP_MAC_CTX *ctx = nullptr;
-  if (ctx == nullptr) {
-    init_thread_local_evp_mac_ctx(ctx, "SHA512");
-  }
-  hmac_impl_finish(ctx, key, message, dest);
-}
-#else
-static void hmac_impl(const EVP_MD *evp_md, Slice key, Slice message, MutableSlice dest) {
-  unsigned int len = 0;
-  auto result = HMAC(evp_md, key.ubegin(), narrow_cast<int>(key.size()), message.ubegin(),
-                     narrow_cast<int>(message.size()), dest.ubegin(), &len);
-  CHECK(result == dest.ubegin());
-  CHECK(len == dest.size());
-}
-#endif
-
-void hmac_sha256(Slice key, Slice message, MutableSlice dest) {
-  CHECK(dest.size() == 256 / 8);
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  hmac_impl_sha256(key, message, dest);
-#else
-  hmac_impl(EVP_sha256(), key, message, dest);
-#endif
-}
-
-void hmac_sha512(Slice key, Slice message, MutableSlice dest) {
-  CHECK(dest.size() == 512 / 8);
-#if OPENSSL_VERSION_NUMBER >= 0x30000000L && !defined(LIBRESSL_VERSION_NUMBER)
-  hmac_impl_sha512(key, message, dest);
-#else
-  hmac_impl(EVP_sha512(), key, message, dest);
-#endif
-}
-
-static int get_evp_pkey_type(EVP_PKEY *pkey) {
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
-  return EVP_PKEY_type(pkey->type);
-#else
-  return EVP_PKEY_base_id(pkey);
-#endif
-}
-
-Result<BufferSlice> rsa_encrypt_pkcs1_oaep(Slice public_key, Slice data) {
-  BIO *mem_bio = BIO_new_mem_buf(const_cast<void *>(static_cast<const void *>(public_key.data())),
-                                 narrow_cast<int>(public_key.size()));
-  SCOPE_EXIT {
-    BIO_vfree(mem_bio);
-  };
-
-  EVP_PKEY *pkey = PEM_read_bio_PUBKEY(mem_bio, nullptr, nullptr, nullptr);
-  if (!pkey) {
-    return Status::Error("Cannot read public key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey);
-  };
-  if (get_evp_pkey_type(pkey) != EVP_PKEY_RSA) {
-    return Status::Error("Wrong key type, expected RSA");
-  }
-
-#if OPENSSL_VERSION_NUMBER < 0x10000000L
-  RSA *rsa = pkey->pkey.rsa;
-  int outlen = RSA_size(rsa);
-  BufferSlice res(outlen);
-  if (RSA_public_encrypt(narrow_cast<int>(data.size()), const_cast<unsigned char *>(data.ubegin()),
-                         res.as_mutable_slice().ubegin(), rsa, RSA_PKCS1_OAEP_PADDING) != outlen) {
-#else
-  EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(pkey, nullptr);
-  if (!ctx) {
-    return Status::Error("Cannot create EVP_PKEY_CTX");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_CTX_free(ctx);
-  };
-
-  if (EVP_PKEY_encrypt_init(ctx) <= 0) {
-    return Status::Error("Cannot init EVP_PKEY_CTX");
-  }
-  if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_OAEP_PADDING) <= 0) {
-    return Status::Error("Cannot set RSA_PKCS1_OAEP padding in EVP_PKEY_CTX");
-  }
-
-  size_t outlen;
-  if (EVP_PKEY_encrypt(ctx, nullptr, &outlen, data.ubegin(), data.size()) <= 0) {
-    return Status::Error("Cannot calculate encrypted length");
-  }
-  BufferSlice res(outlen);
-  if (EVP_PKEY_encrypt(ctx, res.as_mutable_slice().ubegin(), &outlen, data.ubegin(), data.size()) <= 0) {
-#endif
-    return Status::Error("Cannot encrypt");
-  }
-  return std::move(res);
-}
-
-Result<BufferSlice> rsa_decrypt_pkcs1_oaep(Slice private_key, Slice data) {
-  BIO *mem_bio = BIO_new_mem_buf(const_cast<void *>(static_cast<const void *>(private_key.data())),
-                                 narrow_cast<int>(private_key.size()));
-  SCOPE_EXIT {
-    BIO_vfree(mem_bio);
-  };
-
-  EVP_PKEY *pkey = PEM_read_bio_PrivateKey(mem_bio, nullptr, nullptr, nullptr);
-  if (!pkey) {
-    return Status::Error("Cannot read private key");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_free(pkey);
-  };
-  if (get_evp_pkey_type(pkey) != EVP_PKEY_RSA) {
-    return Status::Error("Wrong key type, expected RSA");
-  }
-
-#if OPENSSL_VERSION_NUMBER < 0x10000000L
-  RSA *rsa = pkey->pkey.rsa;
-  size_t outlen = RSA_size(rsa);
-  BufferSlice res(outlen);
-  auto inlen = RSA_private_decrypt(narrow_cast<int>(data.size()), const_cast<unsigned char *>(data.ubegin()),
-                                   res.as_mutable_slice().ubegin(), rsa, RSA_PKCS1_OAEP_PADDING);
-  if (inlen == -1) {
-    return Status::Error("Cannot decrypt");
-  }
-  res.truncate(inlen);
-#else
-  EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(pkey, nullptr);
-  if (!ctx) {
-    return Status::Error("Cannot create EVP_PKEY_CTX");
-  }
-  SCOPE_EXIT {
-    EVP_PKEY_CTX_free(ctx);
-  };
-
-  if (EVP_PKEY_decrypt_init(ctx) <= 0) {
-    return Status::Error("Cannot init EVP_PKEY_CTX");
-  }
-  if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_OAEP_PADDING) <= 0) {
-    return Status::Error("Cannot set RSA_PKCS1_OAEP padding in EVP_PKEY_CTX");
-  }
-
-  size_t outlen;
-  if (EVP_PKEY_decrypt(ctx, nullptr, &outlen, data.ubegin(), data.size()) <= 0) {
-    return Status::Error("Cannot calculate decrypted length");
-  }
-  BufferSlice res(outlen);
-  if (EVP_PKEY_decrypt(ctx, res.as_mutable_slice().ubegin(), &outlen, data.ubegin(), data.size()) <= 0) {
-    return Status::Error("Cannot decrypt");
-  }
-#endif
-  return std::move(res);
-}
-
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
-namespace {
-std::vector<RwMutex> &openssl_mutexes() {
-  static std::vector<RwMutex> mutexes(CRYPTO_num_locks());
-  return mutexes;
-}
-
-#if OPENSSL_VERSION_NUMBER >= 0x10000000L
-void openssl_threadid_callback(CRYPTO_THREADID *thread_id) {
-  static TD_THREAD_LOCAL int id;
-  CRYPTO_THREADID_set_pointer(thread_id, &id);
-}
-#endif
-
-void openssl_locking_function(int mode, int n, const char *file, int line) {
-  auto &mutexes = openssl_mutexes();
-  if (mode & CRYPTO_LOCK) {
-    if (mode & CRYPTO_READ) {
-      mutexes[n].lock_read_unsafe();
-    } else {
-      mutexes[n].lock_write_unsafe();
-    }
-  } else {
-    if (mode & CRYPTO_READ) {
-      mutexes[n].unlock_read_unsafe();
-    } else {
-      mutexes[n].unlock_write_unsafe();
-    }
-  }
-}
-}  // namespace
-#endif
-
-void init_openssl_threads() {
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
-  static std::mutex init_mutex;
-  std::lock_guard<std::mutex> lock(init_mutex);
-  if (CRYPTO_get_locking_callback() == nullptr) {
-#if OPENSSL_VERSION_NUMBER >= 0x10000000L
-    CRYPTO_THREADID_set_callback(openssl_threadid_callback);
-#endif
-    CRYPTO_set_locking_callback(openssl_locking_function);
-  }
-#endif
-}
-
-Status create_openssl_error(int code, Slice message) {
-  const int max_result_size = 1 << 12;
-  auto result = StackAllocator::alloc(max_result_size);
-  StringBuilder sb(result.as_slice());
-
-  sb << message;
-  while (unsigned long error_code = ERR_get_error()) {
-    char error_buf[1024];
-    ERR_error_string_n(error_code, error_buf, sizeof(error_buf));
-    Slice error(error_buf, std::strlen(error_buf));
-    sb << "{" << error << "}";
-  }
-  LOG_IF(ERROR, sb.is_error()) << "OpenSSL error buffer overflow";
-  LOG(DEBUG) << sb.as_cslice();
-  return Status::Error(code, sb.as_cslice());
-}
-
-void clear_openssl_errors(Slice source) {
-  if (ERR_peek_error() != 0) {
-    auto error = create_openssl_error(0, "Unprocessed OPENSSL_ERROR");
-    if (!ends_with(error.message(), ":def_load:system lib}")) {
-      LOG(ERROR) << source << ": " << error;
-    }
-  }
-#if TD_PORT_WINDOWS
-  WSASetLastError(0);
-#else
-  errno = 0;
-#endif
-}
-
-#endif
-
-#if TD_HAVE_ZLIB
-uint32 crc32(Slice data) {
-  return static_cast<uint32>(::crc32(0, data.ubegin(), static_cast<uint32>(data.size())));
-}
-#endif
-
-#if TD_HAVE_CRC32C
-uint32 crc32c(Slice data) {
-  return crc32c::Crc32c(data.data(), data.size());
-}
-
-uint32 crc32c_extend(uint32 old_crc, Slice data) {
-  return crc32c::Extend(old_crc, data.ubegin(), data.size());
-}
-
-namespace {
-
-uint32 gf32_matrix_times(const uint32 *matrix, uint32 vector) {
-  uint32 sum = 0;
-  while (vector) {
-    if (vector & 1) {
-      sum ^= *matrix;
-    }
-    vector >>= 1;
-    matrix++;
-  }
-  return sum;
-}
-
-void gf32_matrix_square(uint32 *square, const uint32 *matrix) {
-  for (int n = 0; n < 32; n++) {
-    square[n] = gf32_matrix_times(matrix, matrix[n]);
-  }
-}
-
-}  // namespace
-
-uint32 crc32c_extend(uint32 old_crc, uint32 data_crc, size_t data_size) {
-  static uint32 power_buf_raw[1024];
-  static const uint32 *power_buf = [&] {
-    auto *buf = power_buf_raw;
-    buf[0] = 0x82F63B78u;
-    for (int n = 0; n < 31; n++) {
-      buf[n + 1] = 1u << n;
-    }
-    for (int n = 1; n < 32; n++) {
-      gf32_matrix_square(buf + (n << 5), buf + ((n - 1) << 5));
-    }
-    return buf;
-  }();
-
-  if (data_size == 0) {
-    return old_crc;
-  }
-
-  const uint32 *p = power_buf + 64;
-  do {
-    p += 32;
-    if (data_size & 1) {
-      old_crc = gf32_matrix_times(p, old_crc);
-    }
-    data_size >>= 1;
-  } while (data_size != 0);
-  return old_crc ^ data_crc;
-}
-
-#endif
-
-static const uint64 crc64_table[256] = {
-    0x0000000000000000, 0xb32e4cbe03a75f6f, 0xf4843657a840a05b, 0x47aa7ae9abe7ff34, 0x7bd0c384ff8f5e33,
-    0xc8fe8f3afc28015c, 0x8f54f5d357cffe68, 0x3c7ab96d5468a107, 0xf7a18709ff1ebc66, 0x448fcbb7fcb9e309,
-    0x0325b15e575e1c3d, 0xb00bfde054f94352, 0x8c71448d0091e255, 0x3f5f08330336bd3a, 0x78f572daa8d1420e,
-    0xcbdb3e64ab761d61, 0x7d9ba13851336649, 0xceb5ed8652943926, 0x891f976ff973c612, 0x3a31dbd1fad4997d,
-    0x064b62bcaebc387a, 0xb5652e02ad1b6715, 0xf2cf54eb06fc9821, 0x41e11855055bc74e, 0x8a3a2631ae2dda2f,
-    0x39146a8fad8a8540, 0x7ebe1066066d7a74, 0xcd905cd805ca251b, 0xf1eae5b551a2841c, 0x42c4a90b5205db73,
-    0x056ed3e2f9e22447, 0xb6409f5cfa457b28, 0xfb374270a266cc92, 0x48190ecea1c193fd, 0x0fb374270a266cc9,
-    0xbc9d3899098133a6, 0x80e781f45de992a1, 0x33c9cd4a5e4ecdce, 0x7463b7a3f5a932fa, 0xc74dfb1df60e6d95,
-    0x0c96c5795d7870f4, 0xbfb889c75edf2f9b, 0xf812f32ef538d0af, 0x4b3cbf90f69f8fc0, 0x774606fda2f72ec7,
-    0xc4684a43a15071a8, 0x83c230aa0ab78e9c, 0x30ec7c140910d1f3, 0x86ace348f355aadb, 0x3582aff6f0f2f5b4,
-    0x7228d51f5b150a80, 0xc10699a158b255ef, 0xfd7c20cc0cdaf4e8, 0x4e526c720f7dab87, 0x09f8169ba49a54b3,
-    0xbad65a25a73d0bdc, 0x710d64410c4b16bd, 0xc22328ff0fec49d2, 0x85895216a40bb6e6, 0x36a71ea8a7ace989,
-    0x0adda7c5f3c4488e, 0xb9f3eb7bf06317e1, 0xfe5991925b84e8d5, 0x4d77dd2c5823b7ba, 0x64b62bcaebc387a1,
-    0xd7986774e864d8ce, 0x90321d9d438327fa, 0x231c512340247895, 0x1f66e84e144cd992, 0xac48a4f017eb86fd,
-    0xebe2de19bc0c79c9, 0x58cc92a7bfab26a6, 0x9317acc314dd3bc7, 0x2039e07d177a64a8, 0x67939a94bc9d9b9c,
-    0xd4bdd62abf3ac4f3, 0xe8c76f47eb5265f4, 0x5be923f9e8f53a9b, 0x1c4359104312c5af, 0xaf6d15ae40b59ac0,
-    0x192d8af2baf0e1e8, 0xaa03c64cb957be87, 0xeda9bca512b041b3, 0x5e87f01b11171edc, 0x62fd4976457fbfdb,
-    0xd1d305c846d8e0b4, 0x96797f21ed3f1f80, 0x2557339fee9840ef, 0xee8c0dfb45ee5d8e, 0x5da24145464902e1,
-    0x1a083bacedaefdd5, 0xa9267712ee09a2ba, 0x955cce7fba6103bd, 0x267282c1b9c65cd2, 0x61d8f8281221a3e6,
-    0xd2f6b4961186fc89, 0x9f8169ba49a54b33, 0x2caf25044a02145c, 0x6b055fede1e5eb68, 0xd82b1353e242b407,
-    0xe451aa3eb62a1500, 0x577fe680b58d4a6f, 0x10d59c691e6ab55b, 0xa3fbd0d71dcdea34, 0x6820eeb3b6bbf755,
-    0xdb0ea20db51ca83a, 0x9ca4d8e41efb570e, 0x2f8a945a1d5c0861, 0x13f02d374934a966, 0xa0de61894a93f609,
-    0xe7741b60e174093d, 0x545a57dee2d35652, 0xe21ac88218962d7a, 0x5134843c1b317215, 0x169efed5b0d68d21,
-    0xa5b0b26bb371d24e, 0x99ca0b06e7197349, 0x2ae447b8e4be2c26, 0x6d4e3d514f59d312, 0xde6071ef4cfe8c7d,
-    0x15bb4f8be788911c, 0xa6950335e42fce73, 0xe13f79dc4fc83147, 0x521135624c6f6e28, 0x6e6b8c0f1807cf2f,
-    0xdd45c0b11ba09040, 0x9aefba58b0476f74, 0x29c1f6e6b3e0301b, 0xc96c5795d7870f42, 0x7a421b2bd420502d,
-    0x3de861c27fc7af19, 0x8ec62d7c7c60f076, 0xb2bc941128085171, 0x0192d8af2baf0e1e, 0x4638a2468048f12a,
-    0xf516eef883efae45, 0x3ecdd09c2899b324, 0x8de39c222b3eec4b, 0xca49e6cb80d9137f, 0x7967aa75837e4c10,
-    0x451d1318d716ed17, 0xf6335fa6d4b1b278, 0xb199254f7f564d4c, 0x02b769f17cf11223, 0xb4f7f6ad86b4690b,
-    0x07d9ba1385133664, 0x4073c0fa2ef4c950, 0xf35d8c442d53963f, 0xcf273529793b3738, 0x7c0979977a9c6857,
-    0x3ba3037ed17b9763, 0x888d4fc0d2dcc80c, 0x435671a479aad56d, 0xf0783d1a7a0d8a02, 0xb7d247f3d1ea7536,
-    0x04fc0b4dd24d2a59, 0x3886b22086258b5e, 0x8ba8fe9e8582d431, 0xcc0284772e652b05, 0x7f2cc8c92dc2746a,
-    0x325b15e575e1c3d0, 0x8175595b76469cbf, 0xc6df23b2dda1638b, 0x75f16f0cde063ce4, 0x498bd6618a6e9de3,
-    0xfaa59adf89c9c28c, 0xbd0fe036222e3db8, 0x0e21ac88218962d7, 0xc5fa92ec8aff7fb6, 0x76d4de52895820d9,
-    0x317ea4bb22bfdfed, 0x8250e80521188082, 0xbe2a516875702185, 0x0d041dd676d77eea, 0x4aae673fdd3081de,
-    0xf9802b81de97deb1, 0x4fc0b4dd24d2a599, 0xfceef8632775faf6, 0xbb44828a8c9205c2, 0x086ace348f355aad,
-    0x34107759db5dfbaa, 0x873e3be7d8faa4c5, 0xc094410e731d5bf1, 0x73ba0db070ba049e, 0xb86133d4dbcc19ff,
-    0x0b4f7f6ad86b4690, 0x4ce50583738cb9a4, 0xffcb493d702be6cb, 0xc3b1f050244347cc, 0x709fbcee27e418a3,
-    0x3735c6078c03e797, 0x841b8ab98fa4b8f8, 0xadda7c5f3c4488e3, 0x1ef430e13fe3d78c, 0x595e4a08940428b8,
-    0xea7006b697a377d7, 0xd60abfdbc3cbd6d0, 0x6524f365c06c89bf, 0x228e898c6b8b768b, 0x91a0c532682c29e4,
-    0x5a7bfb56c35a3485, 0xe955b7e8c0fd6bea, 0xaeffcd016b1a94de, 0x1dd181bf68bdcbb1, 0x21ab38d23cd56ab6,
-    0x9285746c3f7235d9, 0xd52f0e859495caed, 0x6601423b97329582, 0xd041dd676d77eeaa, 0x636f91d96ed0b1c5,
-    0x24c5eb30c5374ef1, 0x97eba78ec690119e, 0xab911ee392f8b099, 0x18bf525d915feff6, 0x5f1528b43ab810c2,
-    0xec3b640a391f4fad, 0x27e05a6e926952cc, 0x94ce16d091ce0da3, 0xd3646c393a29f297, 0x604a2087398eadf8,
-    0x5c3099ea6de60cff, 0xef1ed5546e415390, 0xa8b4afbdc5a6aca4, 0x1b9ae303c601f3cb, 0x56ed3e2f9e224471,
-    0xe5c372919d851b1e, 0xa26908783662e42a, 0x114744c635c5bb45, 0x2d3dfdab61ad1a42, 0x9e13b115620a452d,
-    0xd9b9cbfcc9edba19, 0x6a978742ca4ae576, 0xa14cb926613cf817, 0x1262f598629ba778, 0x55c88f71c97c584c,
-    0xe6e6c3cfcadb0723, 0xda9c7aa29eb3a624, 0x69b2361c9d14f94b, 0x2e184cf536f3067f, 0x9d36004b35545910,
-    0x2b769f17cf112238, 0x9858d3a9ccb67d57, 0xdff2a94067518263, 0x6cdce5fe64f6dd0c, 0x50a65c93309e7c0b,
-    0xe388102d33392364, 0xa4226ac498dedc50, 0x170c267a9b79833f, 0xdcd7181e300f9e5e, 0x6ff954a033a8c131,
-    0x28532e49984f3e05, 0x9b7d62f79be8616a, 0xa707db9acf80c06d, 0x14299724cc279f02, 0x5383edcd67c06036,
-    0xe0ada17364673f59};
-
-static uint64 crc64_partial(Slice data, uint64 crc) {
-  const char *p = data.begin();
-  for (auto len = data.size(); len > 0; len--) {
-    crc = crc64_table[(crc ^ *p++) & 0xff] ^ (crc >> 8);
-  }
-  return crc;
-}
-
-uint64 crc64(Slice data) {
-  return crc64_partial(data, static_cast<uint64>(-1)) ^ static_cast<uint64>(-1);
-}
-
-static const uint16 crc16_table[256] = {
-    0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad,
-    0xe1ce, 0xf1ef, 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 0x9339, 0x8318, 0xb37b, 0xa35a,
-    0xd3bd, 0xc39c, 0xf3ff, 0xe3de, 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, 0xa56a, 0xb54b,
-    0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
-    0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861,
-    0x2802, 0x3823, 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, 0x5af5, 0x4ad4, 0x7ab7, 0x6a96,
-    0x1a71, 0x0a50, 0x3a33, 0x2a12, 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, 0x6ca6, 0x7c87,
-    0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
-    0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a,
-    0x9f59, 0x8f78, 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, 0x1080, 0x00a1, 0x30c2, 0x20e3,
-    0x5004, 0x4025, 0x7046, 0x6067, 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 0x02b1, 0x1290,
-    0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
-    0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e,
-    0xc71d, 0xd73c, 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, 0xd94c, 0xc96d, 0xf90e, 0xe92f,
-    0x99c8, 0x89e9, 0xb98a, 0xa9ab, 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, 0xcb7d, 0xdb5c,
-    0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
-    0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83,
-    0x1ce0, 0x0cc1, 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 0x6e17, 0x7e36, 0x4e55, 0x5e74,
-    0x2e93, 0x3eb2, 0x0ed1, 0x1ef0};
-
-uint16 crc16(Slice data) {
-  uint32 crc = 0;
-  for (auto c : data) {
-    auto t = (static_cast<unsigned char>(c) ^ (crc >> 8)) & 0xff;
-    crc = crc16_table[t] ^ (crc << 8);
-  }
-  return static_cast<uint16>(crc);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/crypto.h b/third-party/td/td/tdutils/td/utils/crypto.h
deleted file mode 100644
index 0579f24df2..0000000000
--- a/third-party/td/td/tdutils/td/utils/crypto.h
+++ /dev/null
@@ -1,184 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-uint64 pq_factorize(uint64 pq);
-
-#if TD_HAVE_OPENSSL
-void init_crypto();
-
-int pq_factorize(Slice pq_str, string *p_str, string *q_str);
-
-class AesState {
- public:
-  AesState();
-  AesState(const AesState &) = delete;
-  AesState &operator=(const AesState &) = delete;
-  AesState(AesState &&from) noexcept;
-  AesState &operator=(AesState &&from) noexcept;
-  ~AesState();
-
-  void init(Slice key, bool encrypt);
-
-  void encrypt(const uint8 *src, uint8 *dst, int size);
-
-  void decrypt(const uint8 *src, uint8 *dst, int size);
-
- private:
-  struct Impl;
-  unique_ptr<Impl> impl_;
-};
-
-void aes_ige_encrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to);
-void aes_ige_decrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to);
-
-class AesIgeStateImpl;
-
-class AesIgeState {
- public:
-  AesIgeState();
-  AesIgeState(const AesIgeState &) = delete;
-  AesIgeState &operator=(const AesIgeState &) = delete;
-  AesIgeState(AesIgeState &&from) noexcept;
-  AesIgeState &operator=(AesIgeState &&from) noexcept;
-  ~AesIgeState();
-
-  void init(Slice key, Slice iv, bool encrypt);
-
-  void encrypt(Slice from, MutableSlice to);
-
-  void decrypt(Slice from, MutableSlice to);
-
- private:
-  unique_ptr<AesIgeStateImpl> impl_;
-};
-
-void aes_cbc_encrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to);
-void aes_cbc_decrypt(Slice aes_key, MutableSlice aes_iv, Slice from, MutableSlice to);
-
-class AesCtrState {
- public:
-  AesCtrState();
-  AesCtrState(const AesCtrState &) = delete;
-  AesCtrState &operator=(const AesCtrState &) = delete;
-  AesCtrState(AesCtrState &&from) noexcept;
-  AesCtrState &operator=(AesCtrState &&from) noexcept;
-  ~AesCtrState();
-
-  void init(Slice key, Slice iv);
-
-  void encrypt(Slice from, MutableSlice to);
-
-  void decrypt(Slice from, MutableSlice to);
-
- private:
-  struct Impl;
-  unique_ptr<Impl> ctx_;
-};
-
-class AesCbcState {
- public:
-  AesCbcState(Slice key256, Slice iv128);
-  AesCbcState(const AesCbcState &) = delete;
-  AesCbcState &operator=(const AesCbcState &) = delete;
-  AesCbcState(AesCbcState &&from) noexcept;
-  AesCbcState &operator=(AesCbcState &&from) noexcept;
-  ~AesCbcState();
-
-  void encrypt(Slice from, MutableSlice to);
-  void decrypt(Slice from, MutableSlice to);
-
-  struct Raw {
-    SecureString key;
-    SecureString iv;
-  };
-  const Raw &raw() const {
-    return raw_;
-  }
-
- private:
-  struct Impl;
-  unique_ptr<Impl> ctx_;
-
-  Raw raw_;
-  bool is_encrypt_ = false;
-};
-
-void sha1(Slice data, unsigned char output[20]);
-
-void sha256(Slice data, MutableSlice output);
-
-void sha512(Slice data, MutableSlice output);
-
-string sha1(Slice data) TD_WARN_UNUSED_RESULT;
-
-string sha256(Slice data) TD_WARN_UNUSED_RESULT;
-
-string sha512(Slice data) TD_WARN_UNUSED_RESULT;
-
-class Sha256State {
- public:
-  Sha256State();
-  Sha256State(const Sha256State &) = delete;
-  Sha256State &operator=(const Sha256State &) = delete;
-  Sha256State(Sha256State &&other) noexcept;
-  Sha256State &operator=(Sha256State &&other) noexcept;
-  ~Sha256State();
-
-  void init();
-
-  void feed(Slice data);
-
-  void extract(MutableSlice output, bool destroy = false);
-
- private:
-  class Impl;
-  unique_ptr<Impl> impl_;
-  bool is_inited_ = false;
-};
-
-void md5(Slice input, MutableSlice output);
-
-void pbkdf2_sha256(Slice password, Slice salt, int iteration_count, MutableSlice dest);
-void pbkdf2_sha512(Slice password, Slice salt, int iteration_count, MutableSlice dest);
-
-void hmac_sha256(Slice key, Slice message, MutableSlice dest);
-void hmac_sha512(Slice key, Slice message, MutableSlice dest);
-
-// Interface may be improved
-Result<BufferSlice> rsa_encrypt_pkcs1_oaep(Slice public_key, Slice data);
-Result<BufferSlice> rsa_decrypt_pkcs1_oaep(Slice private_key, Slice data);
-
-void init_openssl_threads();
-
-Status create_openssl_error(int code, Slice message);
-
-void clear_openssl_errors(Slice source);
-#endif
-
-#if TD_HAVE_ZLIB
-uint32 crc32(Slice data);
-#endif
-
-#if TD_HAVE_CRC32C
-uint32 crc32c(Slice data);
-uint32 crc32c_extend(uint32 old_crc, Slice data);
-uint32 crc32c_extend(uint32 old_crc, uint32 new_crc, size_t data_size);
-#endif
-
-uint64 crc64(Slice data);
-uint16 crc16(Slice data);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/emoji.cpp b/third-party/td/td/tdutils/td/utils/emoji.cpp
deleted file mode 100644
index 0a2c80203c..0000000000
--- a/third-party/td/td/tdutils/td/utils/emoji.cpp
+++ /dev/null
@@ -1,234 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/emoji.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Gzip.h"
-
-namespace td {
-
-static constexpr size_t MAX_EMOJI_LENGTH = 28;
-
-static bool is_emoji_element(Slice str) {
-  static const FlatHashSet<Slice, SliceHash> emojis = [max_emoji_length = MAX_EMOJI_LENGTH] {
-#if TD_HAVE_ZLIB
-    Slice packed_emojis(
-        "eJxtmlly40iWRbdCs_rrr56H3WVmzBHE4A6AxCCFqiodcBFOKShSComawqyWglpAl1lvoP0wcdPK2vrDnY8WF453z_"
-        "NJCk3LdjEtu8WUbWIbYwuxbWPbxXZYTOuX2F4XU13GVi2m5mNsn2L7HNuX2JaxJbGlsWWx5bGZ2GxsRWw_FlMbP9s_xRbHb-"
-        "P4bRyzjWN2b2N7F1t8tovjd_Hfu31s8b3dXWyPsUXtWdScxfedxfedXS6m8_jO8_jMeRz3PD53HvM6Xy-mr_Hz6yo24pj_1_"
-        "jubfS2PVtMVzGvq2rxt4uf3sbuTRa79ymdobN0BV1Jh-79im5NV9M1dG3sPv5Md4q-0e3pDnS3dHd03-ke6I50j7H7lNPxtuVPdIyy_"
-        "IXuDR1ZLd_Rvaf7QPeR7hPdZ7ovdEu6hI7sl_hYMvLyNDI-lvhY4mOJjyU-lvhY4mOJjyXZx6rH7ozunO4r3QXdH-"
-        "mu6K7pcLnc0d3Q4XeJ3yV-l_hd3tPhd4nfJX6XT3TPdC90r3Q_YpdgP8F-gv0E-wn2E-wn2E-wn2A_wX6C_QT7CfYT7CfYT7CfYD_"
-        "BfoL9BPsJ9hPsJ9hPsJ9gP8F-gv0E-wn2E-wn2E-wn2A_-RPdn-l-pXN0Pd1A5-"
-        "ku6TZ0I12g29KBLgFdAroEdAnoEtAloEtAl4AuYaok8Evgl8AvgV8CvwR-"
-        "CegS0KWgS0GXgi4FXQq6FHQp6FLQpaBLQZeCLgVdCroUdCnoUtCloEtBl4IuBV2K_RT7KfZT7KfYT7GfYj_Ffor9FPsp9lPsp9hPsZ9iP8V-"
-        "iv0U-yn2U-yn2E-xn2I_xX6K_RT7KfZT7KfYT5k-KQxSGGQwyGCQwSCDQQaDDAYZDDIYZDDIYJDBIMNvht8Mvxl-M_xm-M3wm-E3w2-G3wy_"
-        "GX4z_"
-        "Gb4zfCb4TfDb4bfDL8ZfjP8ZvjNMJjhKMNRhqMMRxmOMhxlOMpwlOMox1GOoxxHOY5yHOU4ynGU4yjHUY6jnKrmVDWnqjlVzXGZ4zLHZY7LHJc"
-        "5CyJnQeQsiJwFkbMgchZEzoLIWRA5CyJnQeQsiJwFkUMoh1AOoRxCOYRyCOUQyiGUQyiHUA6hHEI5hHII5RDKIZRDKGdG5MyInBmRAyxnRuTMi"
-        "JwZkcMvh18Ovxx-Ofxy-"
-        "OXwM6AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1A"
-        "zUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzUDNQM1AzJ2rMOgs6y6yz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_"
-        "Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_Cz8LPws_"
-        "Cz8LPws_Cz8LPws_Cz8LPwK-BXwK-AXwG_An4F_Ar4FfAr4FfAr4BfAb8CfgX8CvgV8CvgV8CvgF8BvwJ-BfwK-BXwK-BXwK-AXwG_An4F_"
-        "Ar4FfAr4FfAr4BfAb8CfgX8CvgV8CvgV8CvgF8BvwJ-BfwK-BXwK-BXwK-AXwG_An4F_"
-        "Ar4FfAr4FfAr4BfAb8CfgXUSqiVUCuhVkKthFoJtRJqJdRKqJVQK6FWQq2EWgm1Emol1EqolVAroVZCrYRaCbUSaiXUSqiVUCuhVkKthFoJtRJ"
-        "qJdRKqJVQK6FWQq2EWgm1Emol1EqolVAroVZCrYRaCbUSaiXUSqiVUCuhVkKthFoJtRJqJdRKqJVQK6FWQq2EWsmsq7BfYb_"
-        "CfoX9CucVziucVzivcF7hvMJ5hfMK5xXOK5xXOK9wXuG8wnmF8wrnFc4rnFc4r3Be4bzCeYXzivxWvGPFO1ZI1qS7Jt016a5ZJGvKXVPumnLXl"
-        "Lum3DXlril3Tblryl1T7ppy15S7xm-N3xq_"
-        "NX5ryl1jusZ0jeka0zWmaxKqSajGdI3pGtM1pmtM15iuMV1jusZ0jeka0zWma0zXOKoxXWO6xnRNuWvKXVPumnLXlLum3DXlril3Tblryl1T7p"
-        "py15S7ptw15a4pd025a8pdg7OGXw2_Gn41_Gr4NfBr4NfAr4FfA78Gfg38Gvg18Gvg18CvgV8DvwZ-Dfwa-"
-        "LWM1zJey3gt47WM1zJey3gt47WM1zJey3gt47WM1zJey3jtaTzq0VKPlnq01KOlHi31aKlHSz1a6tFSj5Z6tNSjpR4t9WipR0s9WurRUo-"
-        "WerTUo6UeLfVoqUdLPVrq0VKPlnq01KOlHi31aKlHSz1a6tFSj5Z6tNSjpR4t9WipR0s9WurRUo-"
-        "WerTUo6UeLfVoqUdLPTr4dfDr4NfBr4NfB78OQh1IOpB0IOkA0QGiA0SH6Q7THaY7THdk35F9R2odqXWk1pFaR2odqXWk1pFaR2oXsLqA1QWsL"
-        "mB1AasLWF3A6gJWF7C6gNUFrC542wVcHOk6CuooqKOgjuwd2TuydxTUUVCHD4cPhw9HQR0FdRTUUVCHN4c3hzeHN0eSjiQdSTqSdCTpSNKRpCN"
-        "JR5KOJB1JOpJ0IHEU1FFQR0HdKXEK6iioo6AOag5qDmoOag5qDmoOag5gjlo6aumoZU8te2rZU8ueWvbUsqeWPcugZxn0LIOeZdCzDHqo9VDro"
-        "dZDrYdaD7Ueaj3Ueqj1UOuh1kOth1oPtR5qPdR6qPVQ66HWQ62HWg-"
-        "1Hmo91Hqo9VDrodZDrYdaD7Ueaj3Ueqj1UOuh1kOth1oPtR5qPdR6qPVQ66HWQ62HWg-1Hmo9c60HXQ-"
-        "6HnQ96AbQDaAbQDeAbgDdALqBbWSA3wC_AX4D_Ab4DfAb4DfAb4DfAL8BfgP8BvgN8BvgN8BvgN8AvwF-A_wG-A3wG-A3wG-A3wC_AX4D_"
-        "Ab4DfAb4DfAb4DfAL8BfgP8BvgN8BvgN8BvgN8AvwF-A_wG-A3wG-A3wG-A3wC_AX4D_Ab4DfAb4DfAb4Cfh5-Hn4efh5-Hn4efh5-Hn4efh5-"
-        "Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-"
-        "Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh5-Hn4efh9-G8TaMt2G8DeNtGG_"
-        "DeBvG2zDehvE2jLdhvA3jbRhvpAAjBRgpwEgBRgowUoCRAowUYKQAIwUY4TzCeYTzCOcRziOcRziPcB7hPMJ5hPMI5xHOI5xHOI9wHuE8wnmE8"
-        "wjnEc4jnEc4j3Ae4TzCeYTzCOcRziOcRziPcB7hPMJlhMsIlxEuI1xGuIxwGeEywmWEywiXES7jiQucRziPcA5gCmAKYApgCmAKYApgCkzCAJw"
-        "AnACcAJwAnACcAJwAnACcAJwAnACcAJwAnACSAJIAkgCSAJIAkgCSAJIAkgCSAJKA6YDpgOmA6YDpgOmA6YDp8LD4y2bxl-vF9NPzYvr502J6-"
-        "-fYjovpfRlbFdsqtnVsdWxNbJvYxsW0vFxMWRbbVWzx-exbbDex7WN7iC2OkT0upviD4LSK-lWI7ftiWv8U21Ns8X3xJjzFi_"
-        "AU78FTvAZP8RY8xXvtFC-zU7ytTvFiOsXb6BTvoVO8hk7x7jnFu-YU75ZTvFpO8cY4xQvjFO-LU7wVTvE-ODUXscVnmqhv-"
-        "tjiM03MtYnvbF4XU7yTTfE2NsXL2BTvYlO8ik3xEjbF69cUb19TvG1N8To1xVvSFC9JU_cxtugz3l6mrogt-u_iv3X8221s97HFPOJtZDqL7z-"
-        "L-rPI8WwZWxJbfPYsvvMsvvMsvu8sejr7U2yH2OLz59Hz-YfYYr7nbjF9jf8WD-8pnt3T9l1s72P7sPjrT7vYXhZ__byOjYnyjhK_"
-        "o8TvmJvvmJsfmZEfT794ZrYsmSNL5siSObJkjiyZI0vmyJJls2TZLFk2y9MvXU-_V2RapkzLlBelzMiUGZmySFNmZMaum7HrZuy6GRM-"
-        "Y15nzOuMATIGyJjXGaNkjJIxSsa8zlj0GeNlp_"
-        "GYoBlzMzv9lgsz5vR7hNOPemw2Fbt9xYqucF7xRMWUrnisIvuKZyvWccU6XrFbrXhsRbor0l2R7opVuYLLChorIK5YJ6vTj2tAXLOs1yzrNat3"
-        "zepds3rXZL8m-zXZr-G8ZkGuGWpNfmtSW58upry345UdhDq2hI7F3PFYx2LueLajUB0JdVSmw2B3WPxhevPr4g___ZDx-Q-nbv7yj6du_"
-        "vJPp27-8s-nbv7yL6du_vKvp27-8m-nbv7y76du_vIfp27-8p-nbv7yX6du_"
-        "vK3iw9DbJcKNgpGBUHBVsG1ghsFewW3Cr4ruFfwoOCo4FHBs4IXBUycD54vCryCjYJRQVCwVXCl4FrBNwU3CvYKDgpuFXxXcK_"
-        "gQcFRwZOCZwWvCk7JXyr5S-G9VPKXyvlSOV8q50vlTLBTcKNgr-Cg4FbBnYLvCu4VPCp4UvCs4EXBq4JT8hvh3SjDjRhulNhG-WyUxkaPj_I-"
-        "yvuoAUcNOMryqFRHcR7FeVTyQViC0ghKIyiNoDSCBtwqja3mz1Yl2CqfrWqxVWJbJbbVS7cqwVbv2qoEW5Hfivz279_-oOCo4FHBs4IT-"
-        "SvZudIrrvSKKw14pXGuNM618F7L17V8XSvnaw14rQGvBepaOV_rFdfK-Vrv-qYBv2mcb3r8m7zvpNmJ4U4Md2K40-M7pbH7-"
-        "8fvFTwreFVwmlE3KuWNSnkj7zd6xY0Y3mjAG9m5kZ0boSN4UnB6116v2GvkvajuZXCv2bKX072c7vX2vcjvZXkvy3uh28v7XiXYK-"
-        "e9ct4r571y3ivnvUARvCj43cWJ2EF2DrJzkIuDXBzk4iCGByV_UKoHpXpQhgflc9C7buX0Ti-"
-        "907vu9K47vetOxO5E7E4vvfv7cQ4K7hU8KDgqeFZw8v5db7_X2-_l4l6P3yv5ez3-oKcIvIJLBRsFo4KtgisF1wq-"
-        "KdgpuFGwV3BQcKvgXsGDgqOCJwUvCl4VnMgflfxROR-V81Hkj8r5qJyPSvWoVI9K9ahUj0r1qFSPSvWoDI_K8CiYRyX2qMQe9fZHjfyokR9l-"
-        "VG-HvX4kx5_kq8nleBJAz6J_JMGfFJxn-X9Wa94kdNXjfMqFz_0rh_K8MdsJ7v9nz_-7GP7c2x9bNfz9x__9x8Psf0a2-3_94_3sW1n0Q9-"
-        "HDr9h_lvn8_z58v8-Tp__uBHkd90p8_n-fNl_nydP3_w50O_6U6fz_Pny_z5On-i-"
-        "zLrvsy6L7Puy6z7MuuWs24565azbjnrlrMumXXJrEtmXTLrkvmPANJ3818InIJnBS8KXhWcyP2iPyf4RX9S8Iv-rOAX_WnBLxK_"
-        "kfiNxG8kfiPxG4nfSvxW4rcSv5X4rcQfJP4g8QeJP0j8QeLPEn-W-LPEnyX-LPEXib9I_EXiLxJ_"
-        "kXgp8VLipcRLiZez2AidETojdEbojNAZoTNCZ4TOCJ0ROvNe4vcSv5f4vcTvJRY6I3RG6IzQGaEzHyX-KPFHiT9K_FHiTxJ_kviTxJ8k_"
-        "iSximJUFKOiGBXFqChGRTEqilFRjIpiVBSjohgVxagoRkUxvxclkTiROJE4kVgrxaQSpxKnEqcSpxJnEmcSZxJnEmcS5xLnEucS5xLnEg8SDxI"
-        "PEg8SDxJ7ib3EXmIvsZf4UuJLiS8lvpT4UuKNxBuJNxJvJN5IHCQOEgeJg8RB4q3EW4m3Em8l3kp8JfGVxFcSX0l8JfG1xNcSX0t8LfG1xDuJd"
-        "xLvJN5JvJP4RuIbiW8kvpH4RuK9xHuJ9xLvJd5LfJD4IPFB4oPEB4lvJb6V-FbiW4lvJb6T-E7iO4nvJL6T-LvE3yX-LvF3ib9LfC_"
-        "xvcT3Et9LfC_xg8QPEj9I_CDxg8TPEj9L_Czxs8TPs9j-PItPwbOCFwWvCk5i7c9W-7PV_my1P1vtz1b7s9X-bLU_W-"
-        "3PVvuz1QlrdcJanbBWJ6zVCWu1mVtt5labudVmbrWZW23mVpu51WZutZlbbeZWO5LVjmS1I1ntSFY7kjUSG4mNxEZiI_"
-        "Eo8SjxKPEo8TiLK03RSlO00hStNEUrTdFKU7TSFK00RStN0UpTtHqU-FHiR4kfJX6cxat8Fp-"
-        "CZwUvCl4VnMSVxJXElcSVxJXEK4lXEq8kXkm8msWN5kajudFobjSaG43mRqO50WhuNJobjeZGo7nRaG40mhuN5kajudFobjQ6YRudsI1O2EYnb"
-        "KMTttEJ2-iEbXTCNjphG52wjU7YRidsoxO20Qnb6IRtdMI2OmEbnbCNTthGJ2yj-dxoPjeaz43mc6P53P46i0_"
-        "Bs4IXBa8KTmJN0VZTtNUUbTVFW03RVlO01RRtNUVbTdFWU7TVLtpqF221i7baRVvtot1Ps_"
-        "gUPCt4UfCq4CRWUToVpVNROhWlU1GcxE5iJ7GT2P0uFmcnzk6cnTg7cXa1xLXEtcS1xLXEjcSNxI3EjcSNxK3ErcStxK3ErcSdxJ3EncSdxJ3E"
-        "ZxKfSXwm8ZnEZxKfS3wu8bnE5xKfS_xV4q8Sf5X4q8RfJb6Q-"
-        "ELiC4kvJL6QWJdAp0ug0yXQ6RLodAl0O4l3Eu8k3km8k1g3GaebjNNNxukm43STcbrJON1knG4yTjcZp5uM003G6SbjdJNxusk43WSc1qDTGnR"
-        "ag05r0GkNOq1BpzXotAad1qDTGnRag05r0GkNOq1BpzXodJNxusk43WScbjJONxmnm4zTTcbpJuN0k3G6ybijxEeJjxIfJT5K_CLxi8QvEr9I_"
-        "CLxq8SvEr9K_Crx6yzuZbCXwV4GexnsZXAQ50GcB3EexHkQ50GcB3EexHkQ50GcB6EbhG4QukHoBqEbhG4QukHoBqEbhG54kvhJ4ieJnyR-"
-        "msVep5XXaeV1WnmdVl6nlddp5XVaeZ1WXqeV12nltYt67aJeu6jXLuq1i3rdvrxuX163L6_"
-        "bl9fty1uJrcRWYiuxlbiQuJC4kLiQuJC4lLiUuJS4lLiUWHckrzuS1x3J647kdUfyuiN53ZG87khedySvO5JfS7yWeC3xWuK1xDqAvA4grwPI6"
-        "wDyOoC8DiCvA8jrAPI6gLwOIK8DyOsA8jqAvA4grwPI6wDyOoC8DiCvA8jrAPI6gLwOIK8DyOsA8jqAvA4grwPI6wDyOoC8DqCgn1OCfk4J-"
-        "jkl6OeUoJ9Tgn4FF_"
-        "QruKBfwQX9Ci7oV3BBF9egi2vQxTXo4hp0cQ07iXcS7yTeSbyTWAdQ0AEUdAAFHUBBB1DQARR0AAUdQEEHUNABFHQABR1AQQdQ0AEUdAAFHUBB"
-        "B1DQARR0AAUdQEEbY9DGGLQxBm2MQRtj0MYYtDEGbYxBG2PQxhi0Pwftz0H7c9D-HLQ_B-2iQbto0C4atIuG33bR_wUTXk_W");
-    static string all_emojis_str = gzdecode(base64url_decode(packed_emojis).ok()).as_slice().str();
-    constexpr size_t EMOJI_COUNT = 2334;
-#else
-    string all_emojis_str;
-    constexpr size_t EMOJI_COUNT = 0;
-#endif
-    FlatHashSet<Slice, SliceHash> all_emojis;
-    all_emojis.reserve(EMOJI_COUNT);
-    for (size_t i = 0; i < all_emojis_str.size(); i++) {
-      CHECK(all_emojis_str[i] != ' ');
-      CHECK(all_emojis_str[i + 1] != ' ');
-      size_t j = i + 2;
-      while (j < all_emojis_str.size() && all_emojis_str[j] != ' ') {
-        j++;
-      }
-      CHECK(j < all_emojis_str.size());
-      all_emojis.insert(Slice(&all_emojis_str[i], &all_emojis_str[j]));
-      CHECK(j - i <= max_emoji_length);
-      i = j;
-    }
-    CHECK(all_emojis.size() == EMOJI_COUNT);
-    return all_emojis;
-  }();
-  auto len = str.size();
-  if (len > MAX_EMOJI_LENGTH + 3) {
-    return false;
-  }
-  if (emojis.count(str) != 0) {
-    return true;
-  }
-  if (len <= 3 || str[len - 3] != '\xEF' || str[len - 2] != '\xB8' || str[len - 1] != '\x8F') {
-    return false;
-  }
-  if (len >= 6 && str[len - 6] == '\xEF' && str[len - 5] == '\xB8' && str[len - 4] == '\x8F') {
-    return false;
-  }
-  return emojis.count(str.substr(0, len - 3)) != 0;
-}
-
-bool is_emoji(Slice str) {
-  size_t i = str.substr(0, MAX_EMOJI_LENGTH + 4).find('\xE2');
-  if (i == Slice::npos) {
-    return is_emoji_element(str);
-  }
-
-  size_t start_pos = 0;
-  for (; i + 3 < str.size(); i++) {
-    if (str[i] == '\xE2' && str[i + 1] == '\x80' && str[i + 2] == '\x8D') {
-      // zero-width joiner \u200D
-      if (!is_emoji_element(str.substr(start_pos, i - start_pos))) {
-        return false;
-      }
-      start_pos = i + 3;
-      i += 2;
-    }
-  }
-  return is_emoji_element(str.substr(start_pos));
-}
-
-int get_fitzpatrick_modifier(Slice emoji) {
-  if (emoji.size() < 4 || emoji[emoji.size() - 4] != '\xF0' || emoji[emoji.size() - 3] != '\x9F' ||
-      emoji[emoji.size() - 2] != '\x8F') {
-    return 0;
-  }
-  auto c = static_cast<unsigned char>(emoji.back());
-  if (c < 0xBB || c > 0xBF) {
-    return 0;
-  }
-  return (c - 0xBB) + 2;
-}
-
-Slice remove_fitzpatrick_modifier(Slice emoji) {
-  while (get_fitzpatrick_modifier(emoji) != 0) {
-    emoji.remove_suffix(4);
-  }
-  return emoji;
-}
-
-string remove_emoji_modifiers(Slice emoji, bool remove_selectors) {
-  string result = emoji.str();
-  remove_emoji_modifiers_in_place(result, remove_selectors);
-  return result;
-}
-
-void remove_emoji_modifiers_in_place(string &emoji, bool remove_selectors) {
-  static const Slice modifiers[] = {u8"\uFE0F" /* variation selector-16 */,
-                                    u8"\u200D\u2640" /* zero width joiner + female sign */,
-                                    u8"\u200D\u2642" /* zero width joiner + male sign */,
-                                    u8"\U0001F3FB" /* emoji modifier fitzpatrick type-1-2 */,
-                                    u8"\U0001F3FC" /* emoji modifier fitzpatrick type-3 */,
-                                    u8"\U0001F3FD" /* emoji modifier fitzpatrick type-4 */,
-                                    u8"\U0001F3FE" /* emoji modifier fitzpatrick type-5 */,
-                                    u8"\U0001F3FF" /* emoji modifier fitzpatrick type-6 */};
-  const size_t start_index = remove_selectors ? 0 : 1;
-  size_t j = 0;
-  for (size_t i = 0; i < emoji.size();) {
-    bool is_found = false;
-    for (size_t k = start_index; k < sizeof(modifiers) / sizeof(*modifiers); k++) {
-      auto length = modifiers[k].size();
-      if (i + length <= emoji.size() && Slice(&emoji[i], length) == modifiers[k]) {
-        // skip the modifier
-        i += length;
-        is_found = true;
-        break;
-      }
-    }
-    if (!is_found) {
-      emoji[j++] = emoji[i++];
-    }
-  }
-  if (j != 0) {
-    emoji.resize(j);
-  }
-}
-
-string remove_emoji_selectors(Slice emoji) {
-  if (!is_emoji(emoji)) {
-    return emoji.str();
-  }
-  string str;
-  for (size_t i = 0; i < emoji.size(); i++) {
-    if (i + 3 <= emoji.size() && emoji[i] == '\xEF' && emoji[i + 1] == '\xB8' && emoji[i + 2] == '\x8F') {
-      // skip \uFE0F
-      i += 2;
-    } else {
-      str += emoji[i];
-    }
-  }
-  CHECK(is_emoji(str));
-  return str;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/emoji.h b/third-party/td/td/tdutils/td/utils/emoji.h
deleted file mode 100644
index a9877d581e..0000000000
--- a/third-party/td/td/tdutils/td/utils/emoji.h
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-// checks whether the string is an emoji; variation selectors are ignored
-bool is_emoji(Slice str);
-
-// checks whether emoji ends on a Fitzpatrick modifier and returns it's number or 0
-int get_fitzpatrick_modifier(Slice emoji);
-
-// removes all Fitzpatrick modifier from the end of the string
-Slice remove_fitzpatrick_modifier(Slice emoji);
-
-// removes all emoji modifiers from the string
-string remove_emoji_modifiers(Slice emoji, bool remove_selectors = true);
-
-// removes all emoji modifiers from the string in-place
-void remove_emoji_modifiers_in_place(string &emoji, bool remove_selectors = true);
-
-// removes all emoji selectors from the string if it is an emoji
-string remove_emoji_selectors(Slice emoji);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/filesystem.cpp b/third-party/td/td/tdutils/td/utils/filesystem.cpp
deleted file mode 100644
index f520bbf28b..0000000000
--- a/third-party/td/td/tdutils/td/utils/filesystem.cpp
+++ /dev/null
@@ -1,191 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/filesystem.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/misc.h"
-#include "td/utils/PathView.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/unicode.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-namespace {
-
-template <class T>
-T create_empty(size_t size);
-
-template <>
-string create_empty<string>(size_t size) {
-  return string(size, '\0');
-}
-
-template <>
-BufferSlice create_empty<BufferSlice>(size_t size) {
-  return BufferSlice{size};
-}
-
-template <>
-SecureString create_empty<SecureString>(size_t size) {
-  return SecureString{size};
-}
-
-template <class T>
-Result<T> read_file_impl(CSlice path, int64 size, int64 offset) {
-  TRY_RESULT(from_file, FileFd::open(path, FileFd::Read));
-  TRY_RESULT(file_size, from_file.get_size());
-  if (offset < 0 || offset > file_size) {
-    return Status::Error("Failed to read file: invalid offset");
-  }
-  if (size < 0 || size > file_size - offset) {
-    size = file_size - offset;
-  }
-  auto content = create_empty<T>(narrow_cast<size_t>(size));
-  TRY_RESULT(read_size, from_file.pread(as_mutable_slice(content), offset));
-  if (read_size != static_cast<size_t>(size)) {
-    return Status::Error("Failed to read file");
-  }
-  from_file.close();
-  return std::move(content);
-}
-
-}  // namespace
-
-Result<BufferSlice> read_file(CSlice path, int64 size, int64 offset) {
-  return read_file_impl<BufferSlice>(path, size, offset);
-}
-
-Result<string> read_file_str(CSlice path, int64 size, int64 offset) {
-  return read_file_impl<string>(path, size, offset);
-}
-
-Result<SecureString> read_file_secure(CSlice path, int64 size, int64 offset) {
-  return read_file_impl<SecureString>(path, size, offset);
-}
-
-// Very straightforward function. Don't expect much of it.
-Status copy_file(CSlice from, CSlice to, int64 size) {
-  TRY_RESULT(content, read_file(from, size));
-  return write_file(to, content.as_slice());
-}
-
-Status write_file(CSlice to, Slice data, WriteFileOptions options) {
-  auto size = data.size();
-  TRY_RESULT(to_file, FileFd::open(to, FileFd::Truncate | FileFd::Create | FileFd::Write));
-  if (options.need_lock) {
-    TRY_STATUS(to_file.lock(FileFd::LockFlags::Write, to.str(), 10));
-    TRY_STATUS(to_file.truncate_to_current_position(0));
-  }
-  TRY_RESULT(written, to_file.write(data));
-  if (written != size) {
-    return Status::Error(PSLICE() << "Failed to write file: written " << written << " bytes instead of " << size);
-  }
-  if (options.need_sync) {
-    TRY_STATUS(to_file.sync());
-  }
-  if (options.need_lock) {
-    to_file.lock(FileFd::LockFlags::Unlock, to.str(), 10).ignore();
-  }
-  to_file.close();
-  return Status::OK();
-}
-
-static string clean_filename_part(Slice name, int max_length) {
-  auto is_ok = [](uint32 code) {
-    if (code < 32) {
-      return false;
-    }
-    if (code < 127) {
-      switch (code) {
-        case '<':
-        case '>':
-        case ':':
-        case '"':
-        case '/':
-        case '\\':
-        case '|':
-        case '?':
-        case '*':
-        case '&':
-        case '`':
-        case '\'':
-          return false;
-        default:
-          return true;
-      }
-    }
-    auto category = get_unicode_simple_category(code);
-
-    return category == UnicodeSimpleCategory::Letter || category == UnicodeSimpleCategory::DecimalNumber ||
-           category == UnicodeSimpleCategory::Number;
-  };
-
-  std::string new_name;
-  int size = 0;
-  for (auto *it = name.ubegin(); it != name.uend() && size < max_length;) {
-    uint32 code;
-    it = next_utf8_unsafe(it, &code);
-    if (!is_ok(code)) {
-      if (prepare_search_character(code) == 0) {
-        continue;
-      }
-      code = ' ';
-    }
-    if (new_name.empty() && (code == ' ' || code == '.')) {
-      continue;
-    }
-    append_utf8_character(new_name, code);
-    size++;
-  }
-
-  while (!new_name.empty() && (new_name.back() == ' ' || new_name.back() == '.')) {
-    new_name.pop_back();
-  }
-  return new_name;
-}
-
-string clean_filename(CSlice name) {
-  if (!check_utf8(name)) {
-    return {};
-  }
-
-  PathView path_view(name);
-  auto filename = clean_filename_part(path_view.file_stem(), 64);
-  auto extension = clean_filename_part(path_view.extension(), 16);
-  if (!extension.empty()) {
-    if (filename.empty()) {
-      filename = std::move(extension);
-    } else {
-      filename.reserve(filename.size() + 1 + extension.size());
-      filename += '.';
-      filename += extension;
-    }
-  }
-
-  return filename;
-}
-
-Status atomic_write_file(CSlice path, Slice data, CSlice path_tmp) {
-  string path_tmp_buf;
-  if (path_tmp.empty()) {
-    path_tmp_buf = path.str() + ".tmp";
-    path_tmp = path_tmp_buf;
-  }
-
-  WriteFileOptions options;
-  options.need_sync = true;
-  options.need_lock = true;
-  TRY_STATUS(write_file(path_tmp, data, options));
-  return rename(path_tmp, path);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/filesystem.h b/third-party/td/td/tdutils/td/utils/filesystem.h
deleted file mode 100644
index e5090930c4..0000000000
--- a/third-party/td/td/tdutils/td/utils/filesystem.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-Result<BufferSlice> read_file(CSlice path, int64 size = -1, int64 offset = 0);
-Result<string> read_file_str(CSlice path, int64 size = -1, int64 offset = 0);
-Result<SecureString> read_file_secure(CSlice path, int64 size = -1, int64 offset = 0);
-
-Status copy_file(CSlice from, CSlice to, int64 size = -1) TD_WARN_UNUSED_RESULT;
-
-struct WriteFileOptions {
-  bool need_sync = false;
-  bool need_lock = true;
-};
-Status write_file(CSlice to, Slice data, WriteFileOptions options = {}) TD_WARN_UNUSED_RESULT;
-
-string clean_filename(CSlice name);
-
-// writes data to file and ensures that the file is either fully overridden, or is left intact
-// uses path_tmp to temporary store data, then calls rename
-Status atomic_write_file(CSlice path, Slice data, CSlice path_tmp = {});
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/find_boundary.cpp b/third-party/td/td/tdutils/td/utils/find_boundary.cpp
deleted file mode 100644
index 5ef98db2f4..0000000000
--- a/third-party/td/td/tdutils/td/utils/find_boundary.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/find_boundary.h"
-
-#include <cstring>
-
-namespace td {
-
-bool find_boundary(ChainBufferReader range, Slice boundary, size_t &already_read) {
-  range.advance(already_read);
-
-  const int MAX_BOUNDARY_LENGTH = 70;
-  CHECK(boundary.size() <= MAX_BOUNDARY_LENGTH + 4);
-  while (!range.empty()) {
-    Slice ready = range.prepare_read();
-    if (ready[0] == boundary[0]) {
-      if (range.size() < boundary.size()) {
-        return false;
-      }
-      auto save_range = range.clone();
-      char x[MAX_BOUNDARY_LENGTH + 4];
-      range.advance(boundary.size(), {x, sizeof(x)});
-      if (Slice(x, boundary.size()) == boundary) {
-        return true;
-      }
-
-      // not a boundary, restoring previous state and skip one symbol
-      range = std::move(save_range);
-      range.advance(1);
-      already_read++;
-    } else {
-      const auto *ptr = static_cast<const char *>(std::memchr(ready.data(), boundary[0], ready.size()));
-      size_t shift;
-      if (ptr == nullptr) {
-        shift = ready.size();
-      } else {
-        shift = ptr - ready.data();
-      }
-      already_read += shift;
-      range.advance(shift);
-    }
-  }
-
-  return false;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/find_boundary.h b/third-party/td/td/tdutils/td/utils/find_boundary.h
deleted file mode 100644
index b7ad5701fd..0000000000
--- a/third-party/td/td/tdutils/td/utils/find_boundary.h
+++ /dev/null
@@ -1,17 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-bool find_boundary(ChainBufferReader range, Slice boundary, size_t &already_read);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/fixed_vector.h b/third-party/td/td/tdutils/td/utils/fixed_vector.h
deleted file mode 100644
index fc86458b3a..0000000000
--- a/third-party/td/td/tdutils/td/utils/fixed_vector.h
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <utility>
-
-namespace td {
-
-template <class T>
-class fixed_vector {
- public:
-  fixed_vector() = default;
-  explicit fixed_vector(size_t size) : ptr_(new T[size]), size_(size) {
-  }
-  fixed_vector(fixed_vector &&other) noexcept {
-    swap(other);
-  }
-  fixed_vector &operator=(fixed_vector &&other) noexcept {
-    swap(other);
-    return *this;
-  }
-  fixed_vector(const fixed_vector &) = delete;
-  fixed_vector &operator=(const fixed_vector &) = delete;
-  ~fixed_vector() {
-    delete[] ptr_;
-  }
-
-  using iterator = T *;
-  using const_iterator = const T *;
-
-  T &operator[](size_t i) {
-    return ptr_[i];
-  }
-  const T &operator[](size_t i) const {
-    return ptr_[i];
-  }
-
-  T *begin() {
-    return ptr_;
-  }
-  const T *begin() const {
-    return ptr_;
-  }
-  T *end() {
-    return ptr_ + size_;
-  }
-  const T *end() const {
-    return ptr_ + size_;
-  }
-
-  bool empty() const {
-    return size() == 0;
-  }
-  size_t size() const {
-    return size_;
-  }
-
-  void swap(fixed_vector<T> &other) {
-    std::swap(ptr_, other.ptr_);
-    std::swap(size_, other.size_);
-  }
-
- private:
-  T *ptr_{};
-  size_t size_{0};
-};
-
-template <class T>
-void swap(fixed_vector<T> &lhs, fixed_vector<T> &rhs) {
-  lhs.swap(rhs);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/format.h b/third-party/td/td/tdutils/td/utils/format.h
deleted file mode 100644
index 651b32895b..0000000000
--- a/third-party/td/td/tdutils/td/utils/format.h
+++ /dev/null
@@ -1,303 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/invoke.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-
-#include <tuple>
-#include <utility>
-
-namespace td {
-namespace format {
-/*** HexDump ***/
-template <std::size_t size, bool is_reversed = true>
-struct HexDumpSize {
-  const unsigned char *data;
-};
-
-inline char hex_digit(int x) {
-  return "0123456789abcdef"[x];
-}
-
-template <std::size_t size, bool is_reversed>
-StringBuilder &operator<<(StringBuilder &string_builder, const HexDumpSize<size, is_reversed> &dump) {
-  const unsigned char *ptr = dump.data;
-  // TODO: append unsafe
-  for (std::size_t i = 0; i < size; i++) {
-    int xy = ptr[is_reversed ? size - 1 - i : i];
-    int x = xy >> 4;
-    int y = xy & 15;
-    string_builder << hex_digit(x) << hex_digit(y);
-  }
-  return string_builder;
-}
-
-template <std::size_t align>
-struct HexDumpSlice {
-  Slice slice;
-};
-
-template <std::size_t align>
-StringBuilder &operator<<(StringBuilder &string_builder, const HexDumpSlice<align> &dump) {
-  const auto str = dump.slice;
-  const auto size = str.size();
-
-  string_builder << '\n';
-
-  const std::size_t first_part_size = size % align;
-  if (first_part_size) {
-    string_builder << HexDumpSlice<1>{str.substr(0, first_part_size)} << '\n';
-  }
-
-  for (std::size_t i = first_part_size; i < size; i += align) {
-    string_builder << HexDumpSize<align>{str.ubegin() + i};
-
-    if (((i / align) & 15) == 15 || i + align >= size) {
-      string_builder << '\n';
-    } else {
-      string_builder << ' ';
-    }
-  }
-
-  return string_builder;
-}
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const HexDumpSlice<0> &dump) {
-  auto size = dump.slice.size();
-  const uint8 *ptr = dump.slice.ubegin();
-  for (size_t i = 0; i < size; i++) {
-    string_builder << HexDumpSize<1>{ptr + i};
-  }
-  return string_builder;
-}
-
-template <std::size_t align>
-HexDumpSlice<align> as_hex_dump(Slice slice) {
-  return HexDumpSlice<align>{slice};
-}
-
-template <std::size_t align>
-HexDumpSlice<align> as_hex_dump(MutableSlice slice) {
-  return HexDumpSlice<align>{slice};
-}
-
-template <std::size_t align, class T>
-HexDumpSlice<align> as_hex_dump(const T &value) {
-  return HexDumpSlice<align>{Slice(&value, sizeof(value))};
-}
-template <class T>
-HexDumpSize<sizeof(T), true> as_hex_dump(const T &value) {
-  return HexDumpSize<sizeof(T), true>{reinterpret_cast<const unsigned char *>(&value)};
-}
-
-/*** Hex ***/
-template <class T>
-struct Hex {
-  const T &value;
-};
-
-template <class T>
-Hex<T> as_hex(const T &value) {
-  return Hex<T>{value};
-}
-
-template <class T>
-StringBuilder &operator<<(StringBuilder &string_builder, const Hex<T> &hex) {
-  string_builder << "0x" << as_hex_dump(hex.value);
-  return string_builder;
-}
-
-/*** Binary ***/
-template <class T>
-struct Binary {
-  const T &value;
-};
-
-template <class T>
-Binary<T> as_binary(const T &value) {
-  return Binary<T>{value};
-}
-
-template <class T>
-StringBuilder &operator<<(StringBuilder &string_builder, const Binary<T> &hex) {
-  for (size_t i = 0; i < sizeof(T) * 8; i++) {
-    string_builder << ((hex.value >> i) & 1 ? '1' : '0');
-  }
-  return string_builder;
-}
-
-/*** Escaped ***/
-struct Escaped {
-  Slice str;
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const Escaped &escaped) {
-  Slice str = escaped.str;
-  for (unsigned char c : str) {
-    if (c > 31 && c < 127 && c != '"' && c != '\\') {
-      string_builder << static_cast<char>(c);
-    } else {
-      const char *oct = "01234567";
-      string_builder << '\\' << oct[c >> 6] << oct[(c >> 3) & 7] << oct[c & 7];
-    }
-  }
-  return string_builder;
-}
-
-inline Escaped escaped(Slice slice) {
-  return Escaped{slice};
-}
-
-/*** Time to string ***/
-struct Time {
-  double seconds_;
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, Time t) {
-  struct NamedValue {
-    const char *name;
-    double value;
-  };
-
-  static constexpr NamedValue durations[] = {{"ns", 1e-9}, {"us", 1e-6}, {"ms", 1e-3}, {"s", 1}};
-  static constexpr size_t durations_n = sizeof(durations) / sizeof(NamedValue);
-
-  size_t i = 0;
-  while (i + 1 < durations_n && t.seconds_ > 10 * durations[i + 1].value) {
-    i++;
-  }
-  string_builder << StringBuilder::FixedDouble(t.seconds_ / durations[i].value, 1) << Slice(durations[i].name);
-  return string_builder;
-}
-
-inline Time as_time(double seconds) {
-  return Time{seconds};
-}
-
-/*** Size to string ***/
-struct Size {
-  uint64 size_;
-};
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, Size t) {
-  struct NamedValue {
-    const char *name;
-    uint64 value;
-  };
-
-  static constexpr NamedValue sizes[] = {{"B", 1}, {"KB", 1 << 10}, {"MB", 1 << 20}, {"GB", 1 << 30}};
-  static constexpr size_t sizes_n = sizeof(sizes) / sizeof(NamedValue);
-
-  size_t i = 0;
-  while (i + 1 < sizes_n && t.size_ >= 100000 * sizes[i].value) {
-    i++;
-  }
-  string_builder << t.size_ / sizes[i].value << Slice(sizes[i].name);
-  return string_builder;
-}
-
-inline Size as_size(uint64 size) {
-  return Size{size};
-}
-
-/*** Array to string ***/
-template <class ArrayT>
-struct Array {
-  const ArrayT &ref;
-};
-
-template <class ArrayT>
-StringBuilder &operator<<(StringBuilder &string_builder, const Array<ArrayT> &array) {
-  bool first = true;
-  string_builder << '{';
-  for (auto &x : array.ref) {
-    if (!first) {
-      string_builder << Slice(", ");
-    }
-    string_builder << x;
-    first = false;
-  }
-  return string_builder << '}';
-}
-
-inline StringBuilder &operator<<(StringBuilder &string_builder, const Array<vector<bool>> &array) {
-  return string_builder << array.ref;
-}
-
-template <class ArrayT>
-Array<ArrayT> as_array(const ArrayT &array) {
-  return Array<ArrayT>{array};
-}
-
-/*** Tagged ***/
-template <class ValueT>
-struct Tagged {
-  Slice tag;
-  const ValueT &ref;
-};
-
-template <class ValueT>
-StringBuilder &operator<<(StringBuilder &string_builder, const Tagged<ValueT> &tagged) {
-  return string_builder << '[' << tagged.tag << ':' << tagged.ref << ']';
-}
-
-template <class ValueT>
-Tagged<ValueT> tag(Slice tag, const ValueT &ref) {
-  return Tagged<ValueT>{tag, ref};
-}
-
-/*** Cond ***/
-inline StringBuilder &operator<<(StringBuilder &string_builder, Unit) {
-  return string_builder;
-}
-
-template <class TrueT, class FalseT>
-struct Cond {
-  bool flag;
-  const TrueT &on_true;
-  const FalseT &on_false;
-};
-
-template <class TrueT, class FalseT>
-StringBuilder &operator<<(StringBuilder &string_builder, const Cond<TrueT, FalseT> &cond) {
-  if (cond.flag) {
-    return string_builder << cond.on_true;
-  } else {
-    return string_builder << cond.on_false;
-  }
-}
-
-template <class TrueT, class FalseT = Unit>
-Cond<TrueT, FalseT> cond(bool flag, const TrueT &on_true, const FalseT &on_false = FalseT()) {
-  return Cond<TrueT, FalseT>{flag, on_true, on_false};
-}
-
-/*** Concat ***/
-template <class T>
-struct Concat {
-  T args;
-};
-
-template <class T>
-StringBuilder &operator<<(StringBuilder &string_builder, const Concat<T> &concat) {
-  tuple_for_each(concat.args, [&string_builder](auto &x) { string_builder << x; });
-  return string_builder;
-}
-
-template <class... ArgsT>
-auto concat(const ArgsT &...args) {
-  return Concat<decltype(std::tie(args...))>{std::tie(args...)};
-}
-
-}  // namespace format
-
-using format::tag;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/int_types.h b/third-party/td/td/tdutils/td/utils/int_types.h
deleted file mode 100644
index a1203a08d0..0000000000
--- a/third-party/td/td/tdutils/td/utils/int_types.h
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/platform.h"
-
-#include <cstddef>
-#include <cstdint>
-
-namespace td {
-
-#if !TD_WINDOWS
-using size_t = std::size_t;
-#endif
-
-using int8 = std::int8_t;
-using int16 = std::int16_t;
-using uint16 = std::uint16_t;
-using int32 = std::int32_t;
-using uint32 = std::uint32_t;
-using int64 = std::int64_t;
-using uint64 = std::uint64_t;
-
-static_assert(sizeof(std::uint8_t) == sizeof(unsigned char), "Unsigned char expected to be 8-bit");
-using uint8 = unsigned char;
-
-#if TD_MSVC
-#pragma warning(push)
-#pragma warning(disable : 4309)
-#endif
-
-static_assert(static_cast<char>(128) == -128 || static_cast<char>(128) == 128,
-              "Unexpected cast to char implementation-defined behaviour");
-static_assert(static_cast<char>(256) == 0, "Unexpected cast to char implementation-defined behaviour");
-static_assert(static_cast<char>(-256) == 0, "Unexpected cast to char implementation-defined behaviour");
-
-#if TD_MSVC
-#pragma warning(pop)
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/invoke.h b/third-party/td/td/tdutils/td/utils/invoke.h
deleted file mode 100644
index 75fdb8cbea..0000000000
--- a/third-party/td/td/tdutils/td/utils/invoke.h
+++ /dev/null
@@ -1,210 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#include <functional>
-#include <tuple>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-namespace detail {
-
-template <std::size_t... S>
-struct IntSeq {};
-
-template <std::size_t L, std::size_t N, std::size_t... S>
-struct IntSeqGen : IntSeqGen<L, N - 1, L + N - 1, S...> {};
-
-template <std::size_t L, std::size_t... S>
-struct IntSeqGen<L, 0, S...> {
-  using type = IntSeq<S...>;
-};
-
-template <bool... Args>
-class LogicAndImpl {};
-
-template <bool Res, bool X, bool... Args>
-class LogicAndImpl<Res, X, Args...> {
- public:
-  static constexpr bool value = LogicAndImpl<(Res && X), Args...>::value;
-};
-
-template <bool Res>
-class LogicAndImpl<Res> {
- public:
-  static constexpr bool value = Res;
-};
-
-template <std::size_t N>
-using IntRange = typename IntSeqGen<0, N>::type;
-
-template <class T>
-struct is_reference_wrapper : std::false_type {};
-
-template <class U>
-struct is_reference_wrapper<std::reference_wrapper<U>> : std::true_type {};
-
-template <class Base, class T, class Derived, class... Args>
-auto invoke_impl(T Base::*pmf, Derived &&ref,
-                 Args &&...args) noexcept(noexcept((std::forward<Derived>(ref).*pmf)(std::forward<Args>(args)...)))
-    -> std::enable_if_t<std::is_function<T>::value && std::is_base_of<Base, std::decay<Derived>>::value,
-                        decltype((std::forward<Derived>(ref).*pmf)(std::forward<Args>(args)...))> {
-  return (std::forward<Derived>(ref).*pmf)(std::forward<Args>(args)...);
-}
-
-template <class Base, class T, class RefWrap, class... Args>
-auto invoke_impl(T Base::*pmf, RefWrap &&ref,
-                 Args &&...args) noexcept(noexcept((ref.get().*pmf)(std::forward<Args>(args)...)))
-    -> std::enable_if_t<std::is_function<T>::value && is_reference_wrapper<std::decay_t<RefWrap>>::value,
-                        decltype((ref.get().*pmf)(std::forward<Args>(args)...))>
-
-{
-  return (ref.get().*pmf)(std::forward<Args>(args)...);
-}
-
-template <class Base, class T, class Pointer, class... Args>
-auto invoke_impl(T Base::*pmf, Pointer &&ptr,
-                 Args &&...args) noexcept(noexcept(((*std::forward<Pointer>(ptr)).*pmf)(std::forward<Args>(args)...)))
-    -> std::enable_if_t<std::is_function<T>::value && !is_reference_wrapper<std::decay_t<Pointer>>::value &&
-                            !std::is_base_of<Base, std::decay_t<Pointer>>::value,
-                        decltype(((*std::forward<Pointer>(ptr)).*pmf)(std::forward<Args>(args)...))> {
-  return ((*std::forward<Pointer>(ptr)).*pmf)(std::forward<Args>(args)...);
-}
-
-template <class Base, class T, class Derived>
-auto invoke_impl(T Base::*pmd, Derived &&ref) noexcept(noexcept(std::forward<Derived>(ref).*pmd))
-    -> std::enable_if_t<!std::is_function<T>::value && std::is_base_of<Base, std::decay_t<Derived>>::value,
-                        decltype(std::forward<Derived>(ref).*pmd)> {
-  return std::forward<Derived>(ref).*pmd;
-}
-
-template <class Base, class T, class RefWrap>
-auto invoke_impl(T Base::*pmd, RefWrap &&ref) noexcept(noexcept(ref.get().*pmd))
-    -> std::enable_if_t<!std::is_function<T>::value && is_reference_wrapper<std::decay_t<RefWrap>>::value,
-                        decltype(ref.get().*pmd)> {
-  return ref.get().*pmd;
-}
-
-template <class Base, class T, class Pointer>
-auto invoke_impl(T Base::*pmd, Pointer &&ptr) noexcept(noexcept((*std::forward<Pointer>(ptr)).*pmd))
-    -> std::enable_if_t<!std::is_function<T>::value && !is_reference_wrapper<std::decay_t<Pointer>>::value &&
-                            !std::is_base_of<Base, std::decay_t<Pointer>>::value,
-                        decltype((*std::forward<Pointer>(ptr)).*pmd)> {
-  return (*std::forward<Pointer>(ptr)).*pmd;
-}
-
-template <class F, class... Args>
-auto invoke_impl(F &&f, Args &&...args) noexcept(noexcept(std::forward<F>(f)(std::forward<Args>(args)...)))
-    -> std::enable_if_t<!std::is_member_pointer<std::decay_t<F>>::value,
-                        decltype(std::forward<F>(f)(std::forward<Args>(args)...))> {
-  return std::forward<F>(f)(std::forward<Args>(args)...);
-}
-
-template <class F, class... ArgTypes>
-auto invoke(F &&f,
-            ArgTypes &&...args) noexcept(noexcept(invoke_impl(std::forward<F>(f), std::forward<ArgTypes>(args)...)))
-    -> decltype(invoke_impl(std::forward<F>(f), std::forward<ArgTypes>(args)...)) {
-  return invoke_impl(std::forward<F>(f), std::forward<ArgTypes>(args)...);
-}
-
-template <class F, class... Args, std::size_t... S>
-auto call_tuple_impl(F &&func, std::tuple<Args...> &&tuple, IntSeq<S...>) {
-  return func(std::forward<Args>(std::get<S>(tuple))...);
-}
-
-template <class... Args, std::size_t... S>
-auto invoke_tuple_impl(std::tuple<Args...> &&tuple, IntSeq<S...>) {
-  return invoke(std::forward<Args>(std::get<S>(tuple))...);
-}
-
-template <class ActorT, class F, class... Args, std::size_t... S>
-auto mem_call_tuple_impl(ActorT *actor, std::tuple<F, Args...> &&tuple, IntSeq<0, S...>) {
-  return (actor->*std::get<0>(tuple))(std::forward<Args>(std::get<S>(tuple))...);
-}
-
-template <class F, class... Args, std::size_t... S>
-void tuple_for_each_impl(std::tuple<Args...> &tuple, const F &func, IntSeq<S...>) {
-  const auto &dummy = {0, (func(std::get<S>(tuple)), 0)...};
-  (void)dummy;
-}
-
-template <class F, class... Args, std::size_t... S>
-void tuple_for_each_impl(const std::tuple<Args...> &tuple, const F &func, IntSeq<S...>) {
-  const auto &dummy = {0, (func(std::get<S>(tuple)), 0)...};
-  (void)dummy;
-}
-
-}  // namespace detail
-
-template <bool... Args>
-class LogicAnd {
- public:
-  static constexpr bool value = detail::LogicAndImpl<true, Args...>::value;
-};
-
-template <class F, class... Args>
-auto call_tuple(F &&func, std::tuple<Args...> &&tuple) {
-  return detail::call_tuple_impl(func, std::move(tuple), detail::IntRange<sizeof...(Args)>());
-}
-
-template <class... Args>
-auto invoke_tuple(std::tuple<Args...> &&tuple) {
-  return detail::invoke_tuple_impl(std::move(tuple), detail::IntRange<sizeof...(Args)>());
-}
-
-template <class ActorT, class... Args>
-auto mem_call_tuple(ActorT *actor, std::tuple<Args...> &&tuple) {
-  return detail::mem_call_tuple_impl(actor, std::move(tuple), detail::IntRange<sizeof...(Args)>());
-}
-
-template <class F, class... Args>
-void tuple_for_each(std::tuple<Args...> &tuple, const F &func) {
-  detail::tuple_for_each_impl(tuple, func, detail::IntRange<sizeof...(Args)>());
-}
-
-template <class F, class... Args>
-void tuple_for_each(const std::tuple<Args...> &tuple, const F &func) {
-  detail::tuple_for_each_impl(tuple, func, detail::IntRange<sizeof...(Args)>());
-}
-
-template <size_t N, class Arg, class... Args, std::enable_if_t<N == 0, int> = 0>
-auto &&get_nth_argument(Arg &&arg, Args &&...args) {
-  return std::forward<Arg>(arg);
-}
-
-template <size_t N, class Arg, class... Args, std::enable_if_t<N != 0, int> = 0>
-auto &&get_nth_argument(Arg &&arg, Args &&...args) {
-  return get_nth_argument<N - 1>(std::forward<Args &&>(args)...);
-}
-
-template <class... Args>
-auto &&get_last_argument(Args &&...args) {
-  return get_nth_argument<sizeof...(Args) - 1>(std::forward<Args &&>(args)...);
-}
-
-namespace detail {
-template <class F, class... Args, std::size_t... S>
-auto call_n_arguments_impl(IntSeq<S...>, F &&f, Args &&...args) {
-  return f(get_nth_argument<S>(std::forward<Args>(args)...)...);
-}
-}  // namespace detail
-
-template <size_t N, class F, class... Args>
-auto call_n_arguments(F &&f, Args &&...args) {
-  return detail::call_n_arguments_impl(detail::IntRange<N>(), f, std::forward<Args>(args)...);
-}
-
-template <class F, class X, class = void>
-struct is_callable final : public std::false_type {};
-template <class F, class X>
-struct is_callable<F, X, decltype(std::declval<F>()(std::declval<X>()))> final : public std::true_type {};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/logging.cpp b/third-party/td/td/tdutils/td/utils/logging.cpp
deleted file mode 100644
index ee2c4591f3..0000000000
--- a/third-party/td/td/tdutils/td/utils/logging.cpp
+++ /dev/null
@@ -1,296 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/logging.h"
-
-#include "td/utils/ExitGuard.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-#include "td/utils/TsCerr.h"
-
-#include <atomic>
-#include <cstdlib>
-#include <limits>
-#include <mutex>
-
-#if TD_ANDROID
-#include <android/log.h>
-#define ALOG_TAG "DLTD"
-#elif TD_TIZEN
-#include <dlog.h>
-#define DLOG_TAG "DLTD"
-#elif TD_EMSCRIPTEN
-#include <emscripten.h>
-#endif
-
-namespace td {
-
-LogOptions log_options;
-
-static std::atomic<int> max_callback_verbosity_level{-2};
-static std::atomic<OnLogMessageCallback> on_log_message_callback{nullptr};
-
-void set_log_message_callback(int max_verbosity_level, OnLogMessageCallback callback) {
-  if (callback == nullptr) {
-    max_verbosity_level = -2;
-  }
-
-  max_callback_verbosity_level = max_verbosity_level;
-  on_log_message_callback = callback;
-}
-
-void LogInterface::append(int log_level, CSlice slice) {
-  do_append(log_level, slice);
-  if (log_level == VERBOSITY_NAME(FATAL)) {
-    process_fatal_error(slice);
-  } else if (log_level <= max_callback_verbosity_level.load(std::memory_order_relaxed)) {
-    auto callback = on_log_message_callback.load(std::memory_order_relaxed);
-    if (callback != nullptr) {
-      callback(log_level, slice);
-    }
-  }
-}
-
-TD_THREAD_LOCAL const char *Logger::tag_ = nullptr;
-TD_THREAD_LOCAL const char *Logger::tag2_ = nullptr;
-
-Logger::Logger(LogInterface &log, const LogOptions &options, int log_level, Slice file_name, int line_num,
-               Slice comment)
-    : Logger(log, options, log_level) {
-  if (log_level == VERBOSITY_NAME(PLAIN) && &options == &log_options) {
-    return;
-  }
-  if (!options_.add_info) {
-    return;
-  }
-  if (ExitGuard::is_exited()) {
-    return;
-  }
-
-  // log level
-  sb_ << '[';
-  if (static_cast<uint32>(log_level) < 10) {
-    sb_ << ' ' << static_cast<char>('0' + log_level);
-  } else {
-    sb_ << log_level;
-  }
-  sb_ << ']';
-
-  // thread identifier
-  auto thread_id = get_thread_id();
-  sb_ << "[t";
-  if (static_cast<uint32>(thread_id) < 10) {
-    sb_ << ' ' << static_cast<char>('0' + thread_id);
-  } else {
-    sb_ << thread_id;
-  }
-  sb_ << ']';
-
-  // timestamp
-  auto time = Clocks::system();
-  auto unix_time = static_cast<uint32>(time);
-  auto nanoseconds = static_cast<uint32>((time - unix_time) * 1e9);
-  sb_ << '[' << unix_time << '.';
-  uint32 limit = 100000000;
-  while (nanoseconds < limit && limit > 1) {
-    sb_ << '0';
-    limit /= 10;
-  }
-  sb_ << nanoseconds << ']';
-
-  // file : line
-  if (!file_name.empty()) {
-    auto last_slash_ = static_cast<int32>(file_name.size()) - 1;
-    while (last_slash_ >= 0 && file_name[last_slash_] != '/' && file_name[last_slash_] != '\\') {
-      last_slash_--;
-    }
-    file_name = file_name.substr(last_slash_ + 1);
-    sb_ << '[' << file_name << ':' << static_cast<uint32>(line_num) << ']';
-  }
-
-  // context from tag_
-  if (tag_ != nullptr && *tag_) {
-    sb_ << "[#" << Slice(tag_) << ']';
-  }
-
-  // context from tag2_
-  if (tag2_ != nullptr && *tag2_) {
-    sb_ << "[!" << Slice(tag2_) << ']';
-  }
-
-  // comment (e.g. condition in LOG_IF)
-  if (!comment.empty()) {
-    sb_ << "[&" << comment << ']';
-  }
-
-  sb_ << '\t';
-}
-
-Logger::~Logger() {
-  if (ExitGuard::is_exited()) {
-    return;
-  }
-  if (options_.fix_newlines) {
-    sb_ << '\n';
-    auto slice = as_cslice();
-    if (slice.back() != '\n') {
-      slice.back() = '\n';
-    }
-    while (slice.size() > 1 && slice[slice.size() - 2] == '\n') {
-      slice.back() = '\0';
-      slice = MutableCSlice(slice.begin(), slice.begin() + slice.size() - 1);
-    }
-    log_.append(log_level_, slice);
-  } else {
-    log_.append(log_level_, as_cslice());
-  }
-}
-
-class DefaultLog final : public LogInterface {
-  void do_append(int log_level, CSlice slice) final {
-#if TD_ANDROID
-    switch (log_level) {
-      case VERBOSITY_NAME(FATAL):
-        __android_log_write(ANDROID_LOG_FATAL, ALOG_TAG, slice.c_str());
-        break;
-      case VERBOSITY_NAME(ERROR):
-        __android_log_write(ANDROID_LOG_ERROR, ALOG_TAG, slice.c_str());
-        break;
-      case VERBOSITY_NAME(WARNING):
-        __android_log_write(ANDROID_LOG_WARN, ALOG_TAG, slice.c_str());
-        break;
-      case VERBOSITY_NAME(INFO):
-        __android_log_write(ANDROID_LOG_INFO, ALOG_TAG, slice.c_str());
-        break;
-      default:
-        __android_log_write(ANDROID_LOG_DEBUG, ALOG_TAG, slice.c_str());
-        break;
-    }
-#elif TD_TIZEN
-    switch (log_level) {
-      case VERBOSITY_NAME(FATAL):
-        dlog_print(DLOG_ERROR, DLOG_TAG, "%s", slice.c_str());
-        break;
-      case VERBOSITY_NAME(ERROR):
-        dlog_print(DLOG_ERROR, DLOG_TAG, "%s", slice.c_str());
-        break;
-      case VERBOSITY_NAME(WARNING):
-        dlog_print(DLOG_WARN, DLOG_TAG, "%s", slice.c_str());
-        break;
-      case VERBOSITY_NAME(INFO):
-        dlog_print(DLOG_INFO, DLOG_TAG, "%s", slice.c_str());
-        break;
-      default:
-        dlog_print(DLOG_DEBUG, DLOG_TAG, "%s", slice.c_str());
-        break;
-    }
-#elif TD_EMSCRIPTEN
-    switch (log_level) {
-      case VERBOSITY_NAME(FATAL):
-        emscripten_log(EM_LOG_ERROR | EM_LOG_CONSOLE | EM_LOG_C_STACK | EM_LOG_JS_STACK, "%s", slice.c_str());
-        EM_ASM(throw(UTF8ToString($0)), slice.c_str());
-        break;
-      case VERBOSITY_NAME(ERROR):
-        emscripten_log(EM_LOG_ERROR | EM_LOG_CONSOLE, "%s", slice.c_str());
-        break;
-      case VERBOSITY_NAME(WARNING):
-        emscripten_log(EM_LOG_WARN | EM_LOG_CONSOLE, "%s", slice.c_str());
-        break;
-      default:
-        emscripten_log(EM_LOG_CONSOLE, "%s", slice.c_str());
-        break;
-    }
-#elif !TD_WINDOWS
-    Slice color;
-    Slice no_color("\x1b[0m");
-    switch (log_level) {
-      case VERBOSITY_NAME(FATAL):
-      case VERBOSITY_NAME(ERROR):
-        color = Slice("\x1b[1;31m");  // red
-        break;
-      case VERBOSITY_NAME(WARNING):
-        color = Slice("\x1b[1;33m");  // yellow
-        break;
-      case VERBOSITY_NAME(INFO):
-        color = Slice("\x1b[1;36m");  // cyan
-        break;
-      default:
-        no_color = Slice();
-        break;
-    }
-    if (!slice.empty() && slice.back() == '\n') {
-      TsCerr() << color << slice.substr(0, slice.size() - 1) << no_color << "\n";
-    } else {
-      TsCerr() << color << slice << no_color;
-    }
-#else
-    // TODO: color
-    TsCerr() << slice;
-#endif
-  }
-};
-static DefaultLog default_log;
-
-LogInterface *const default_log_interface = &default_log;
-LogInterface *log_interface = default_log_interface;
-
-void process_fatal_error(CSlice message) {
-  if (0 <= max_callback_verbosity_level.load(std::memory_order_relaxed)) {
-    auto callback = on_log_message_callback.load(std::memory_order_relaxed);
-    if (callback != nullptr) {
-      callback(0, message);
-    }
-  }
-
-  std::abort();
-}
-
-static std::atomic<uint32> log_guard;
-
-LogGuard::LogGuard() {
-  uint32 expected = 0;
-  while (!log_guard.compare_exchange_strong(expected, 1, std::memory_order_relaxed, std::memory_order_relaxed)) {
-    // spin
-    CHECK(expected == 1);
-    expected = 0;
-  }
-}
-
-LogGuard::~LogGuard() {
-  CHECK(log_guard.load(std::memory_order_relaxed) == 1);
-  log_guard.store(0, std::memory_order_relaxed);
-}
-
-bool has_log_guard() {
-  return log_guard.load(std::memory_order_relaxed) == 1;
-}
-
-namespace {
-std::mutex sdl_mutex;
-int sdl_cnt = 0;
-int sdl_verbosity = 0;
-}  // namespace
-
-ScopedDisableLog::ScopedDisableLog() {
-  std::unique_lock<std::mutex> guard(sdl_mutex);
-  if (sdl_cnt == 0) {
-    sdl_verbosity = set_verbosity_level(std::numeric_limits<int>::min());
-  }
-  sdl_cnt++;
-}
-
-ScopedDisableLog::~ScopedDisableLog() {
-  std::unique_lock<std::mutex> guard(sdl_mutex);
-  sdl_cnt--;
-  if (sdl_cnt == 0) {
-    set_verbosity_level(sdl_verbosity);
-  }
-}
-
-static ExitGuard exit_guard;
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/logging.h b/third-party/td/td/tdutils/td/utils/logging.h
deleted file mode 100644
index 8d04f4b2d4..0000000000
--- a/third-party/td/td/tdutils/td/utils/logging.h
+++ /dev/null
@@ -1,255 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-/*
- * Simple logging.
- *
- * Predefined log levels: FATAL, ERROR, WARNING, INFO, DEBUG
- *
- * LOG(WARNING) << "Hello world!";
- * LOG(INFO) << "Hello " << 1234 << " world!";
- * LOG_IF(INFO, condition) << "Hello world if condition!";
- *
- * Custom log levels may be defined and used using VLOG:
- * int VERBOSITY_NAME(custom) = VERBOSITY_NAME(WARNING);
- * VLOG(custom) << "Hello custom world!"
- *
- * LOG(FATAL) << "Power is off";
- * CHECK(condition) <===> LOG_IF(FATAL, !(condition))
- */
-
-#include "td/utils/common.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-
-#include <atomic>
-#include <type_traits>
-
-#define VERBOSITY_NAME(x) verbosity_##x
-
-#define GET_VERBOSITY_LEVEL() (::td::get_verbosity_level())
-#define SET_VERBOSITY_LEVEL(new_level) (::td::set_verbosity_level(new_level))
-
-#ifndef STRIP_LOG
-#define STRIP_LOG VERBOSITY_NAME(DEBUG)
-#endif
-#define LOG_IS_STRIPPED(strip_level) \
-  (::std::integral_constant<int, VERBOSITY_NAME(strip_level)>() > ::std::integral_constant<int, STRIP_LOG>())
-
-#define LOGGER(interface, options, level, comment) ::td::Logger(interface, options, level, __FILE__, __LINE__, comment)
-
-#define LOG_IMPL_FULL(interface, options, strip_level, runtime_level, condition, comment) \
-  LOG_IS_STRIPPED(strip_level) || runtime_level > options.get_level() || !(condition)     \
-      ? (void)0                                                                           \
-      : ::td::detail::Voidify() & LOGGER(interface, options, runtime_level, comment)
-
-#define LOG_IMPL(strip_level, level, condition, comment) \
-  LOG_IMPL_FULL(*::td::log_interface, ::td::log_options, strip_level, VERBOSITY_NAME(level), condition, comment)
-
-#define LOG(level) LOG_IMPL(level, level, true, ::td::Slice())
-#define LOG_IF(level, condition) LOG_IMPL(level, level, condition, #condition)
-
-#define VLOG(level) LOG_IMPL(DEBUG, level, true, TD_DEFINE_STR(level))
-#define VLOG_IF(level, condition) LOG_IMPL(DEBUG, level, condition, TD_DEFINE_STR(level) " " #condition)
-
-#define LOG_TAG ::td::Logger::tag_
-#define LOG_TAG2 ::td::Logger::tag2_
-
-#if TD_CLANG
-bool no_return_func() __attribute__((analyzer_noreturn));
-#endif
-
-inline bool no_return_func() {
-  return true;
-}
-
-// clang-format off
-#define DUMMY_LOG_CHECK(condition) LOG_IF(NEVER, !(condition))
-
-#ifdef TD_DEBUG
-  #if TD_MSVC
-    #define LOG_CHECK(condition)        \
-      __analysis_assume(!!(condition)); \
-      LOG_IMPL(FATAL, FATAL, !(condition), #condition)
-  #else
-    #define LOG_CHECK(condition) LOG_IMPL(FATAL, FATAL, !(condition) && no_return_func(), #condition)
-  #endif
-#else
-  #define LOG_CHECK DUMMY_LOG_CHECK
-#endif
-
-#if NDEBUG
-  #define LOG_DCHECK DUMMY_LOG_CHECK
-#else
-  #define LOG_DCHECK LOG_CHECK
-#endif
-// clang-format on
-
-constexpr int VERBOSITY_NAME(PLAIN) = -1;
-constexpr int VERBOSITY_NAME(FATAL) = 0;
-constexpr int VERBOSITY_NAME(ERROR) = 1;
-constexpr int VERBOSITY_NAME(WARNING) = 2;
-constexpr int VERBOSITY_NAME(INFO) = 3;
-constexpr int VERBOSITY_NAME(DEBUG) = 4;
-constexpr int VERBOSITY_NAME(NEVER) = 1024;
-
-namespace td {
-
-struct LogOptions {
-  std::atomic<int> level{VERBOSITY_NAME(DEBUG) + 1};
-  bool fix_newlines{true};
-  bool add_info{true};
-
-  int get_level() const {
-    return level.load(std::memory_order_relaxed);
-  }
-  int set_level(int new_level) {
-    return level.exchange(new_level);
-  }
-
-  static const LogOptions &plain() {
-    static LogOptions plain_options{0, false, false};
-    return plain_options;
-  }
-
-  constexpr LogOptions() = default;
-  constexpr LogOptions(int level, bool fix_newlines, bool add_info)
-      : level(level), fix_newlines(fix_newlines), add_info(add_info) {
-  }
-
-  LogOptions(const LogOptions &other) : LogOptions(other.level.load(), other.fix_newlines, other.add_info) {
-  }
-
-  LogOptions &operator=(const LogOptions &other) {
-    if (this == &other) {
-      return *this;
-    }
-    level = other.level.load();
-    fix_newlines = other.fix_newlines;
-    add_info = other.add_info;
-    return *this;
-  }
-  LogOptions(LogOptions &&) = delete;
-  LogOptions &operator=(LogOptions &&) = delete;
-  ~LogOptions() = default;
-};
-
-extern LogOptions log_options;
-inline int set_verbosity_level(int level) {
-  return log_options.set_level(level);
-}
-inline int get_verbosity_level() {
-  return log_options.get_level();
-}
-
-class LogInterface {
- public:
-  LogInterface() = default;
-  LogInterface(const LogInterface &) = delete;
-  LogInterface &operator=(const LogInterface &) = delete;
-  LogInterface(LogInterface &&) = delete;
-  LogInterface &operator=(LogInterface &&) = delete;
-  virtual ~LogInterface() = default;
-
-  void append(int log_level, CSlice slice);
-
-  virtual void after_rotation() {
-  }
-
-  virtual vector<string> get_file_paths() {
-    return {};
-  }
-
-  virtual void do_append(int log_level, CSlice slice) = 0;
-};
-
-extern LogInterface *const default_log_interface;
-extern LogInterface *log_interface;
-
-[[noreturn]] void process_fatal_error(CSlice message);
-
-using OnLogMessageCallback = void (*)(int verbosity_level, CSlice message);
-void set_log_message_callback(int max_verbosity_level, OnLogMessageCallback callback);
-
-class Logger {
-  static const size_t BUFFER_SIZE = 128 * 1024;
-
- public:
-  Logger(LogInterface &log, const LogOptions &options, int log_level)
-      : buffer_(StackAllocator::alloc(BUFFER_SIZE))
-      , log_(log)
-      , sb_(buffer_.as_slice())
-      , options_(options)
-      , log_level_(log_level) {
-  }
-
-  Logger(LogInterface &log, const LogOptions &options, int log_level, Slice file_name, int line_num, Slice comment);
-
-  template <class T>
-  Logger &operator<<(T &&other) {
-    sb_ << other;
-    return *this;
-  }
-
-  MutableCSlice as_cslice() {
-    return sb_.as_cslice();
-  }
-  bool is_error() const {
-    return sb_.is_error();
-  }
-  Logger(const Logger &) = delete;
-  Logger &operator=(const Logger &) = delete;
-  Logger(Logger &&) = delete;
-  Logger &operator=(Logger &&) = delete;
-  ~Logger();
-
-  static TD_THREAD_LOCAL const char *tag_;
-  static TD_THREAD_LOCAL const char *tag2_;
-
- private:
-  decltype(StackAllocator::alloc(0)) buffer_;
-  LogInterface &log_;
-  StringBuilder sb_;
-  const LogOptions &options_;
-  int log_level_;
-};
-
-class LogGuard {
- public:
-  LogGuard();
-  LogGuard(const LogGuard &) = delete;
-  LogGuard &operator=(const LogGuard &) = delete;
-  LogGuard(LogGuard &&) = delete;
-  LogGuard &operator=(LogGuard &&) = delete;
-  ~LogGuard();
-};
-
-bool has_log_guard();
-
-class ScopedDisableLog {
- public:
-  ScopedDisableLog();
-  ScopedDisableLog(const ScopedDisableLog &) = delete;
-  ScopedDisableLog &operator=(const ScopedDisableLog &) = delete;
-  ScopedDisableLog(ScopedDisableLog &&) = delete;
-  ScopedDisableLog &operator=(ScopedDisableLog &&) = delete;
-  ~ScopedDisableLog();
-};
-
-namespace detail {
-class Voidify {
- public:
-  template <class T>
-  void operator&(const T &) {
-  }
-};
-}  // namespace detail
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/misc.cpp b/third-party/td/td/tdutils/td/utils/misc.cpp
deleted file mode 100644
index 4d3050c604..0000000000
--- a/third-party/td/td/tdutils/td/utils/misc.cpp
+++ /dev/null
@@ -1,274 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/misc.h"
-
-#include "td/utils/port/thread_local.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <cstdlib>
-#include <locale>
-#include <sstream>
-
-namespace td {
-
-char *str_dup(Slice str) {
-  auto *res = static_cast<char *>(std::malloc(str.size() + 1));
-  if (res == nullptr) {
-    return nullptr;
-  }
-  std::copy(str.begin(), str.end(), res);
-  res[str.size()] = '\0';
-  return res;
-}
-
-string implode(const vector<string> &v, char delimiter) {
-  string result;
-  for (size_t i = 0; i < v.size(); i++) {
-    if (i != 0) {
-      result += delimiter;
-    }
-    result += v[i];
-  }
-  return result;
-}
-
-string lpad(string str, size_t size, char c) {
-  if (str.size() >= size) {
-    return str;
-  }
-  return string(size - str.size(), c) + str;
-}
-
-string lpad0(string str, size_t size) {
-  return lpad(std::move(str), size, '0');
-}
-
-string rpad(string str, size_t size, char c) {
-  if (str.size() >= size) {
-    return str;
-  }
-  return str + string(size - str.size(), c);
-}
-
-string oneline(Slice str) {
-  string result;
-  result.reserve(str.size());
-  bool after_new_line = true;
-  for (auto c : str) {
-    if (c != '\n' && c != '\r') {
-      if (after_new_line) {
-        if (c == ' ') {
-          continue;
-        }
-        after_new_line = false;
-      }
-      result += c;
-    } else if (!after_new_line) {
-      after_new_line = true;
-      result += ' ';
-    }
-  }
-  while (!result.empty() && result.back() == ' ') {
-    result.pop_back();
-  }
-  return result;
-}
-
-namespace detail {
-Status get_to_integer_safe_error(Slice str) {
-  auto error_message = PSTRING() << "Can't parse as an integer string \"" << str << '"';
-  if (!check_utf8(error_message)) {
-    return Status::Error("Strings must be encoded in UTF-8");
-  }
-  return Status::Error(error_message);
-}
-}  // namespace detail
-
-double to_double(Slice str) {
-  static TD_THREAD_LOCAL std::stringstream *ss;
-  if (init_thread_local<std::stringstream>(ss)) {
-    auto previous_locale = ss->imbue(std::locale::classic());
-  } else {
-    ss->str(std::string());
-    ss->clear();
-  }
-  ss->write(str.begin(), narrow_cast<std::streamsize>(str.size()));
-
-  double result = 0.0;
-  *ss >> result;
-  return result;
-}
-
-Result<string> hex_decode(Slice hex) {
-  if (hex.size() % 2 != 0) {
-    return Status::Error("Wrong hex string length");
-  }
-  string result(hex.size() / 2, '\0');
-  for (size_t i = 0; i < result.size(); i++) {
-    int high = hex_to_int(hex[i + i]);
-    int low = hex_to_int(hex[i + i + 1]);
-    if (high == 16 || low == 16) {
-      return Status::Error("Wrong hex string");
-    }
-    result[i] = static_cast<char>(high * 16 + low);  // TODO implementation-defined
-  }
-  return std::move(result);
-}
-
-string hex_encode(Slice data) {
-  const char *hex = "0123456789abcdef";
-  string res;
-  res.reserve(2 * data.size());
-  for (unsigned char c : data) {
-    res.push_back(hex[c >> 4]);
-    res.push_back(hex[c & 15]);
-  }
-  return res;
-}
-
-static bool is_url_char(char c) {
-  return is_alnum(c) || c == '-' || c == '.' || c == '_' || c == '~';
-}
-
-string url_encode(Slice data) {
-  size_t length = 3 * data.size();
-  for (auto c : data) {
-    length -= 2 * is_url_char(c);
-  }
-  if (length == data.size()) {
-    return data.str();
-  }
-  string result;
-  result.reserve(length);
-  for (auto c : data) {
-    if (is_url_char(c)) {
-      result += c;
-    } else {
-      auto ch = static_cast<unsigned char>(c);
-      result += '%';
-      result += "0123456789ABCDEF"[ch / 16];
-      result += "0123456789ABCDEF"[ch % 16];
-    }
-  }
-  CHECK(result.size() == length);
-  return result;
-}
-
-size_t url_decode(Slice from, MutableSlice to, bool decode_plus_sign_as_space) {
-  size_t to_i = 0;
-  CHECK(to.size() >= from.size());
-  for (size_t from_i = 0, n = from.size(); from_i < n; from_i++) {
-    if (from[from_i] == '%' && from_i + 2 < n) {
-      int high = hex_to_int(from[from_i + 1]);
-      int low = hex_to_int(from[from_i + 2]);
-      if (high < 16 && low < 16) {
-        to[to_i++] = static_cast<char>(high * 16 + low);
-        from_i += 2;
-        continue;
-      }
-    }
-    to[to_i++] = decode_plus_sign_as_space && from[from_i] == '+' ? ' ' : from[from_i];
-  }
-  return to_i;
-}
-
-string url_decode(Slice from, bool decode_plus_sign_as_space) {
-  string to;
-  to.resize(from.size());
-  to.resize(url_decode(from, to, decode_plus_sign_as_space));
-  return to;
-}
-
-MutableSlice url_decode_inplace(MutableSlice str, bool decode_plus_sign_as_space) {
-  size_t result_size = url_decode(str, str, decode_plus_sign_as_space);
-  str.truncate(result_size);
-  return str;
-}
-
-string buffer_to_hex(Slice buffer) {
-  const char *hex = "0123456789ABCDEF";
-  string res(2 * buffer.size(), '\0');
-  for (std::size_t i = 0; i < buffer.size(); i++) {
-    auto c = buffer.ubegin()[i];
-    res[2 * i] = hex[c & 15];
-    res[2 * i + 1] = hex[c >> 4];
-  }
-  return res;
-}
-
-string zero_encode(Slice data) {
-  auto buffer = StackAllocator::alloc(1024);
-  auto res = StringBuilder(buffer.as_slice(), true);
-  for (size_t n = data.size(), i = 0; i < n; i++) {
-    res.push_back(data[i]);
-    if (data[i] == 0) {
-      unsigned char cnt = 1;
-      while (cnt < 250 && i + cnt < n && data[i + cnt] == data[i]) {
-        cnt++;
-      }
-      res.push_back(static_cast<char>(cnt));
-      i += cnt - 1;
-    }
-  }
-  return res.as_cslice().str();
-}
-
-string zero_decode(Slice data) {
-  auto buffer = StackAllocator::alloc(1024);
-  auto res = StringBuilder(buffer.as_slice(), true);
-  for (size_t n = data.size(), i = 0; i < n; i++) {
-    if (data[i] == 0 && i + 1 < n) {
-      for (int cnt = static_cast<unsigned char>(data[i + 1]); cnt > 0; cnt--) {
-        res.push_back(data[i]);
-      }
-      i++;
-      continue;
-    }
-    res.push_back(data[i]);
-  }
-  return res.as_cslice().str();
-}
-
-string zero_one_encode(Slice data) {
-  auto buffer = StackAllocator::alloc(1024);
-  auto res = StringBuilder(buffer.as_slice(), true);
-  for (size_t n = data.size(), i = 0; i < n; i++) {
-    res.push_back(data[i]);
-    auto c = static_cast<unsigned char>(data[i]);
-    if (c == 0 || c == 0xff) {
-      unsigned char cnt = 1;
-      while (cnt < 250 && i + cnt < n && data[i + cnt] == data[i]) {
-        cnt++;
-      }
-      res.push_back(static_cast<char>(cnt));
-      i += cnt - 1;
-    }
-  }
-  return res.as_cslice().str();
-}
-
-string zero_one_decode(Slice data) {
-  auto buffer = StackAllocator::alloc(1024);
-  auto res = StringBuilder(buffer.as_slice(), true);
-  for (size_t n = data.size(), i = 0; i < n; i++) {
-    auto c = static_cast<unsigned char>(data[i]);
-    if ((c == 0 || c == 0xff) && i + 1 < n) {
-      for (int cnt = static_cast<unsigned char>(data[i + 1]); cnt > 0; cnt--) {
-        res.push_back(data[i]);
-      }
-      i++;
-      continue;
-    }
-    res.push_back(data[i]);
-  }
-  return res.as_cslice().str();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/misc.h b/third-party/td/td/tdutils/td/utils/misc.h
deleted file mode 100644
index 824d75461a..0000000000
--- a/third-party/td/td/tdutils/td/utils/misc.h
+++ /dev/null
@@ -1,354 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <cstdint>
-#include <limits>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-char *str_dup(Slice str);
-
-template <class T>
-std::pair<T, T> split(T s, char delimiter = ' ') {
-  auto delimiter_pos = s.find(delimiter);
-  if (delimiter_pos == string::npos) {
-    return {std::move(s), T()};
-  } else {
-    return {s.substr(0, delimiter_pos), s.substr(delimiter_pos + 1)};
-  }
-}
-
-template <class T>
-vector<T> full_split(T s, char delimiter = ' ', size_t max_parts = std::numeric_limits<size_t>::max()) {
-  vector<T> result;
-  if (s.empty()) {
-    return result;
-  }
-  while (result.size() + 1 < max_parts) {
-    auto delimiter_pos = s.find(delimiter);
-    if (delimiter_pos == string::npos) {
-      break;
-    }
-
-    result.push_back(s.substr(0, delimiter_pos));
-    s = s.substr(delimiter_pos + 1);
-  }
-  result.push_back(std::move(s));
-  return result;
-}
-
-string implode(const vector<string> &v, char delimiter = ' ');
-
-inline bool begins_with(Slice str, Slice prefix) {
-  return prefix.size() <= str.size() && prefix == Slice(str.data(), prefix.size());
-}
-
-inline bool ends_with(Slice str, Slice suffix) {
-  return suffix.size() <= str.size() && suffix == Slice(str.data() + str.size() - suffix.size(), suffix.size());
-}
-
-inline char to_lower(char c) {
-  if ('A' <= c && c <= 'Z') {
-    return static_cast<char>(c - 'A' + 'a');
-  }
-
-  return c;
-}
-
-inline MutableSlice to_lower_inplace(MutableSlice slice) {
-  for (auto &c : slice) {
-    c = to_lower(c);
-  }
-  return slice;
-}
-
-inline string to_lower(Slice slice) {
-  auto result = slice.str();
-  to_lower_inplace(result);
-  return result;
-}
-
-inline char to_upper(char c) {
-  if ('a' <= c && c <= 'z') {
-    return static_cast<char>(c - 'a' + 'A');
-  }
-
-  return c;
-}
-
-inline void to_upper_inplace(MutableSlice slice) {
-  for (auto &c : slice) {
-    c = to_upper(c);
-  }
-}
-
-inline string to_upper(Slice slice) {
-  auto result = slice.str();
-  to_upper_inplace(result);
-  return result;
-}
-
-inline bool is_space(char c) {
-  return c == ' ' || c == '\t' || c == '\r' || c == '\n' || c == '\0' || c == '\v';
-}
-
-inline bool is_alpha(char c) {
-  c |= 0x20;
-  return 'a' <= c && c <= 'z';
-}
-
-inline bool is_digit(char c) {
-  return '0' <= c && c <= '9';
-}
-
-inline bool is_alnum(char c) {
-  return is_alpha(c) || is_digit(c);
-}
-
-inline bool is_hex_digit(char c) {
-  if (is_digit(c)) {
-    return true;
-  }
-  c |= 0x20;
-  return 'a' <= c && c <= 'f';
-}
-
-template <class T>
-T trim(T str) {
-  auto begin = str.data();
-  auto end = begin + str.size();
-  while (begin < end && is_space(*begin)) {
-    begin++;
-  }
-  while (begin < end && is_space(end[-1])) {
-    end--;
-  }
-  if (static_cast<size_t>(end - begin) == str.size()) {
-    return std::move(str);
-  }
-  return T(begin, end);
-}
-
-string lpad(string str, size_t size, char c);
-
-string lpad0(string str, size_t size);
-
-string rpad(string str, size_t size, char c);
-
-string oneline(Slice str);
-
-template <class T>
-std::enable_if_t<std::is_signed<T>::value, T> to_integer(Slice str) {
-  using unsigned_T = typename std::make_unsigned<T>::type;
-  unsigned_T integer_value = 0;
-  auto begin = str.begin();
-  auto end = str.end();
-  bool is_negative = false;
-  if (begin != end && *begin == '-') {
-    is_negative = true;
-    begin++;
-  }
-  while (begin != end && is_digit(*begin)) {
-    integer_value = static_cast<unsigned_T>(integer_value * 10 + static_cast<unsigned_T>(*begin++ - '0'));
-  }
-  if (integer_value > static_cast<unsigned_T>(std::numeric_limits<T>::max())) {
-    static_assert(~0 + 1 == 0, "Two's complement");
-    // Use ~x + 1 instead of -x to suppress Visual Studio warning.
-    integer_value = static_cast<unsigned_T>(~integer_value + 1);
-    is_negative = !is_negative;
-
-    if (integer_value > static_cast<unsigned_T>(std::numeric_limits<T>::max())) {
-      return std::numeric_limits<T>::min();
-    }
-  }
-
-  return is_negative ? static_cast<T>(-static_cast<T>(integer_value)) : static_cast<T>(integer_value);
-}
-
-template <class T>
-std::enable_if_t<std::is_unsigned<T>::value, T> to_integer(Slice str) {
-  T integer_value = 0;
-  auto begin = str.begin();
-  auto end = str.end();
-  while (begin != end && is_digit(*begin)) {
-    integer_value = static_cast<T>(integer_value * 10 + static_cast<T>(*begin++ - '0'));
-  }
-  return integer_value;
-}
-
-namespace detail {
-Status get_to_integer_safe_error(Slice str);
-}  // namespace detail
-
-template <class T>
-Result<T> to_integer_safe(Slice str) {
-  auto res = to_integer<T>(str);
-  if ((PSLICE() << res) != str) {
-    return detail::get_to_integer_safe_error(str);
-  }
-  return res;
-}
-
-inline int hex_to_int(char c) {
-  if (is_digit(c)) {
-    return c - '0';
-  }
-  c |= 0x20;
-  if ('a' <= c && c <= 'f') {
-    return c - 'a' + 10;
-  }
-  return 16;
-}
-
-template <class T>
-typename std::enable_if<std::is_unsigned<T>::value, T>::type hex_to_integer(Slice str) {
-  T integer_value = 0;
-  auto begin = str.begin();
-  auto end = str.end();
-  while (begin != end && is_hex_digit(*begin)) {
-    integer_value = static_cast<T>(integer_value * 16 + hex_to_int(*begin++));
-  }
-  return integer_value;
-}
-
-template <class T>
-Result<typename std::enable_if<std::is_unsigned<T>::value, T>::type> hex_to_integer_safe(Slice str) {
-  T integer_value = 0;
-  auto begin = str.begin();
-  auto end = str.end();
-  if (begin == end) {
-    return Status::Error("String is empty");
-  }
-  while (begin != end) {
-    T digit = hex_to_int(*begin++);
-    if (digit == 16) {
-      return Status::Error("String contains non-hex digit");
-    }
-    if (integer_value > std::numeric_limits<T>::max() / 16) {
-      return Status::Error("String hex number overflows");
-    }
-    integer_value = integer_value * 16 + digit;
-  }
-  return integer_value;
-}
-
-double to_double(Slice str);
-
-template <class T>
-T clamp(T value, T min_value, T max_value) {
-  if (value < min_value) {
-    return min_value;
-  }
-  if (value > max_value) {
-    return max_value;
-  }
-  return value;
-}
-
-Result<string> hex_decode(Slice hex);
-
-string hex_encode(Slice data);
-
-string url_encode(Slice data);
-
-size_t url_decode(Slice from, MutableSlice to, bool decode_plus_sign_as_space);
-
-string url_decode(Slice from, bool decode_plus_sign_as_space);
-
-MutableSlice url_decode_inplace(MutableSlice str, bool decode_plus_sign_as_space);
-
-// run-time checked narrowing cast (type conversion):
-
-namespace detail {
-template <class T, class U>
-struct is_same_signedness final
-    : public std::integral_constant<bool, std::is_signed<T>::value == std::is_signed<U>::value> {};
-
-template <class T, class Enable = void>
-struct safe_undeflying_type {
-  using type = T;
-};
-
-template <class T>
-struct safe_undeflying_type<T, std::enable_if_t<std::is_enum<T>::value>> {
-  using type = std::underlying_type_t<T>;
-};
-
-class NarrowCast {
-  const char *file_;
-  int line_;
-
- public:
-  NarrowCast(const char *file, int line) : file_(file), line_(line) {
-  }
-
-  template <class R, class A>
-  R cast(const A &a) {
-    using RT = typename safe_undeflying_type<R>::type;
-    using AT = typename safe_undeflying_type<A>::type;
-
-    static_assert(std::is_integral<RT>::value, "expected integral type to cast to");
-    static_assert(std::is_integral<AT>::value, "expected integral type to cast from");
-
-    auto r = R(a);
-    LOG_CHECK(A(r) == a) << static_cast<AT>(a) << " " << static_cast<RT>(r) << " " << file_ << " " << line_;
-    LOG_CHECK((is_same_signedness<RT, AT>::value) || ((static_cast<RT>(r) < RT{}) == (static_cast<AT>(a) < AT{})))
-        << static_cast<AT>(a) << " " << static_cast<RT>(r) << " " << file_ << " " << line_;
-
-    return r;
-  }
-};
-}  // namespace detail
-
-#define narrow_cast detail::NarrowCast(__FILE__, __LINE__).cast
-
-template <class R, class A>
-Result<R> narrow_cast_safe(const A &a) {
-  using RT = typename detail::safe_undeflying_type<R>::type;
-  using AT = typename detail::safe_undeflying_type<A>::type;
-
-  static_assert(std::is_integral<RT>::value, "expected integral type to cast to");
-  static_assert(std::is_integral<AT>::value, "expected integral type to cast from");
-
-  auto r = R(a);
-  if (!(A(r) == a)) {
-    return Status::Error("Narrow cast failed");
-  }
-  if (!((detail::is_same_signedness<RT, AT>::value) || ((static_cast<RT>(r) < RT{}) == (static_cast<AT>(a) < AT{})))) {
-    return Status::Error("Narrow cast failed");
-  }
-
-  return r;
-}
-
-template <int Alignment, class T>
-bool is_aligned_pointer(const T *pointer) {
-  static_assert(Alignment > 0 && (Alignment & (Alignment - 1)) == 0, "Wrong alignment");
-  return (reinterpret_cast<std::uintptr_t>(static_cast<const void *>(pointer)) & (Alignment - 1)) == 0;
-}
-
-string buffer_to_hex(Slice buffer);
-
-string zero_encode(Slice data);
-
-string zero_decode(Slice data);
-
-string zero_one_encode(Slice data);
-
-string zero_one_decode(Slice data);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/optional.h b/third-party/td/td/tdutils/td/utils/optional.h
deleted file mode 100644
index 5308e304f7..0000000000
--- a/third-party/td/td/tdutils/td/utils/optional.h
+++ /dev/null
@@ -1,129 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-template <class T, bool = std::is_copy_constructible<T>::value>
-class optional {
- public:
-  optional() = default;
-  template <class T1,
-            std::enable_if_t<!std::is_same<std::decay_t<T1>, optional>::value && std::is_constructible<T, T1>::value,
-                             int> = 0>
-  optional(T1 &&t) : impl_(std::forward<T1>(t)) {
-  }
-
-  optional(const optional &other) {
-    if (other) {
-      impl_ = Result<T>(other.value());
-    }
-  }
-
-  optional &operator=(const optional &other) {
-    if (this == &other) {
-      return *this;
-    }
-    if (other) {
-      impl_ = Result<T>(other.value());
-    } else {
-      impl_ = Result<T>();
-    }
-    return *this;
-  }
-
-  optional(optional &&) = default;
-  optional &operator=(optional &&) = default;
-  ~optional() = default;
-
-  explicit operator bool() const noexcept {
-    return impl_.is_ok();
-  }
-  T &value() {
-    DCHECK(*this);
-    return impl_.ok_ref();
-  }
-  const T &value() const {
-    DCHECK(*this);
-    return impl_.ok_ref();
-  }
-  T &operator*() {
-    return value();
-  }
-  const T &operator*() const {
-    return value();
-  }
-  T unwrap() {
-    CHECK(*this);
-    auto res = std::move(value());
-    impl_ = {};
-    return res;
-  }
-
-  optional<T> copy() const {
-    if (*this) {
-      return value();
-    }
-    return {};
-  }
-
-  template <class... ArgsT>
-  void emplace(ArgsT &&...args) {
-    impl_.emplace(std::forward<ArgsT>(args)...);
-  }
-
- private:
-  Result<T> impl_;
-};
-
-template <typename T>
-struct optional<T, false> : optional<T, true> {
-  optional() = default;
-
-  using optional<T, true>::optional;
-
-  optional(const optional &) = delete;
-  optional &operator=(const optional &) = delete;
-  optional(optional &&) = default;
-  optional &operator=(optional &&) = default;
-  ~optional() = default;
-};
-
-template <class T, class S>
-bool operator==(const optional<T> &a, const optional<S> &b) {
-  if (a) {
-    return static_cast<bool>(b) && a.value() == b.value();
-  }
-  return !static_cast<bool>(b);
-}
-
-template <class T>
-bool operator==(const T &a, const optional<T> &b) {
-  return static_cast<bool>(b) && a == b.value();
-}
-
-template <class T>
-bool operator==(const optional<T> &a, const T &b) {
-  return static_cast<bool>(a) && a.value() == b;
-}
-
-template <class T>
-StringBuilder &operator<<(StringBuilder &sb, const optional<T> &v) {
-  if (v) {
-    return sb << "Some{" << v.value() << "}";
-  }
-  return sb << "None";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/overloaded.h b/third-party/td/td/tdutils/td/utils/overloaded.h
deleted file mode 100644
index b9292cc325..0000000000
--- a/third-party/td/td/tdutils/td/utils/overloaded.h
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-namespace td {
-
-namespace detail {
-
-template <class... Fs>
-struct overload;
-
-template <class F>
-struct overload<F> : public F {
-  explicit overload(F f) : F(f) {
-  }
-};
-
-template <class F, class... Fs>
-struct overload<F, Fs...>
-    : public overload<F>
-    , public overload<Fs...> {
-  overload(F f, Fs... fs) : overload<F>(f), overload<Fs...>(fs...) {
-  }
-  using overload<F>::operator();
-  using overload<Fs...>::operator();
-};
-
-}  // namespace detail
-
-template <class... F>
-auto overloaded(F... f) {
-  return detail::overload<F...>(f...);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/Clocks.cpp b/third-party/td/td/tdutils/td/utils/port/Clocks.cpp
deleted file mode 100644
index 2de33b6396..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/Clocks.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/Clocks.h"
-
-#include "td/utils/port/platform.h"
-
-#include <chrono>
-#include <ctime>
-
-#if TD_PORT_POSIX
-#include <time.h>
-#endif
-
-namespace td {
-
-double Clocks::monotonic() {
-#if TD_PORT_POSIX
-  // use system specific functions, because std::chrono::steady_clock is steady only under Windows
-
-#ifdef CLOCK_BOOTTIME
-  {
-    static bool skip = [] {
-      struct timespec spec;
-      return clock_gettime(CLOCK_BOOTTIME, &spec) != 0;
-    }();
-    struct timespec spec;
-    if (!skip && clock_gettime(CLOCK_BOOTTIME, &spec) == 0) {
-      return static_cast<double>(spec.tv_nsec) * 1e-9 + static_cast<double>(spec.tv_sec);
-    }
-  }
-#endif
-#ifdef CLOCK_MONOTONIC_RAW
-  {
-    static bool skip = [] {
-      struct timespec spec;
-      return clock_gettime(CLOCK_MONOTONIC_RAW, &spec) != 0;
-    }();
-    struct timespec spec;
-    if (!skip && clock_gettime(CLOCK_MONOTONIC_RAW, &spec) == 0) {
-      return static_cast<double>(spec.tv_nsec) * 1e-9 + static_cast<double>(spec.tv_sec);
-    }
-  }
-#endif
-
-#endif
-
-  auto duration = std::chrono::steady_clock::now().time_since_epoch();
-  return static_cast<double>(std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count()) * 1e-9;
-}
-
-double Clocks::system() {
-  auto duration = std::chrono::system_clock::now().time_since_epoch();
-  return static_cast<double>(std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count()) * 1e-9;
-}
-
-int Clocks::tz_offset() {
-  // not thread-safe on POSIX, so calculate the offset only once
-  static int offset = [] {
-    auto now = std::time(nullptr);
-
-    auto time_ptr = std::localtime(&now);
-    if (time_ptr == nullptr) {
-      return 0;
-    }
-    auto local_time = *time_ptr;
-
-    time_ptr = std::gmtime(&now);
-    if (time_ptr == nullptr) {
-      return 0;
-    }
-    auto utc_time = *time_ptr;
-
-    int minute_offset = local_time.tm_min - utc_time.tm_min;
-    int hour_offset = local_time.tm_hour - utc_time.tm_hour;
-    int day_offset = local_time.tm_mday - utc_time.tm_mday;
-    if (day_offset >= 20) {
-      day_offset = -1;
-    } else if (day_offset <= -20) {
-      day_offset = 1;
-    }
-    int sec_offset = day_offset * 86400 + hour_offset * 3600 + minute_offset * 60;
-    if (sec_offset >= 15 * 3600 || sec_offset <= -15 * 3600) {
-      return 0;
-    }
-    return sec_offset / 900 * 900;  // round to 900 just in case
-  }();
-  return offset;
-}
-
-namespace detail {
-int init_tz_offset_private = Clocks::tz_offset();
-}  // namespace detail
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/Clocks.h b/third-party/td/td/tdutils/td/utils/port/Clocks.h
deleted file mode 100644
index e4a8e16de3..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/Clocks.h
+++ /dev/null
@@ -1,19 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-namespace td {
-
-struct Clocks {
-  static double monotonic();
-
-  static double system();
-
-  static int tz_offset();
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/CxCli.h b/third-party/td/td/tdutils/td/utils/port/CxCli.h
deleted file mode 100644
index 51093c009b..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/CxCli.h
+++ /dev/null
@@ -1,162 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#pragma managed(push, off)
-#include "td/utils/port/config.h"
-#pragma managed(pop)
-
-#include "td/utils/common.h"
-
-#if TD_WINRT
-
-#pragma managed(push, off)
-#include "td/utils/port/wstring_convert.h"
-#pragma managed(pop)
-
-#include "collection.h"
-
-#pragma managed(push, off)
-#include <cstdint>
-#include <map>
-#include <mutex>
-#pragma managed(pop)
-
-#undef small
-
-#define REF_NEW ref new
-#define CLRCALL
-#define DEPRECATED_ATTRIBUTE(message) \
-  ::Windows::Foundation::Metadata::Deprecated(message, ::Windows::Foundation::Metadata::DeprecationType::Deprecate, 0x0)
-
-namespace CxCli {
-
-using Windows::Foundation::Collections::IVector;
-#define Array IVector
-using Platform::Collections::Vector;
-#define ArraySize(arr) ((arr)->Size)
-#define ArrayGet(arr, index) ((arr)->GetAt(index))
-#define ArraySet(arr, index, value) ((arr)->SetAt((index), (value)))
-#define ArrayIndexType unsigned
-
-using Platform::String;
-
-using Platform::NullReferenceException;
-
-template <class Key, class Value>
-class ConcurrentDictionary {
- public:
-  bool TryGetValue(Key key, Value &value) {
-    std::lock_guard<std::mutex> guard(mutex_);
-    auto it = impl_.find(key);
-    if (it == impl_.end()) {
-      return false;
-    }
-    value = it->second;
-    return true;
-  }
-  bool TryRemove(Key key, Value &value) {
-    std::lock_guard<std::mutex> guard(mutex_);
-    auto it = impl_.find(key);
-    if (it == impl_.end()) {
-      return false;
-    }
-    value = std::move(it->second);
-    impl_.erase(it);
-    return true;
-  }
-  Value &operator[](Key key) {
-    std::lock_guard<std::mutex> guard(mutex_);
-    return impl_[key];
-  }
-
- private:
-  std::mutex mutex_;
-  std::map<Key, Value> impl_;
-};
-
-inline std::int64_t Increment(volatile std::int64_t &value) {
-  return InterlockedIncrement64(&value);
-}
-
-inline std::string string_to_unmanaged(String ^ str) {
-  if (!str) {
-    return std::string();
-  }
-  auto r_unmanaged_str = td::from_wstring(str->Data(), str->Length());
-  if (r_unmanaged_str.is_error()) {
-    return std::string();
-  }
-  return r_unmanaged_str.move_as_ok();
-}
-
-inline String ^ string_from_unmanaged(const std::string &from) {
-  auto tmp = td::to_wstring(from).ok();
-  return REF_NEW String(tmp.c_str(), static_cast<unsigned>(tmp.size()));
-}
-
-}  // namespace CxCli
-
-#elif TD_CLI
-
-#undef small
-
-#define REF_NEW gcnew
-#define CLRCALL __clrcall
-#define DEPRECATED_ATTRIBUTE(message) System::ObsoleteAttribute(message)
-
-namespace CxCli {
-
-using uint8 = td::uint8;
-using int32 = td::int32;
-using int64 = td::int64;
-using float64 = double;
-
-#define Array array
-#define Vector array
-#define ArraySize(arr) ((arr)->Length)
-#define ArrayGet(arr, index) ((arr)[index])
-#define ArraySet(arr, index, value) ((arr)[index] = (value))
-#define ArrayIndexType int
-
-using System::String;
-
-using System::NullReferenceException;
-
-using System::Collections::Concurrent::ConcurrentDictionary;
-
-inline std::int64_t Increment(std::int64_t % value) {
-  return System::Threading::Interlocked::Increment(value);
-}
-
-inline std::string string_to_unmanaged(String ^ str) {
-  if (!str || str->Length == 0) {
-    return std::string();
-  }
-
-  Array<System::Byte> ^ bytes = System::Text::Encoding::UTF8->GetBytes(str);
-  cli::pin_ptr<System::Byte> pinned_ptr = &bytes[0];
-  std::string result(reinterpret_cast<const char *>(&pinned_ptr[0]), bytes->Length);
-  return result;
-}
-
-inline String ^ string_from_unmanaged(const std::string &from) {
-  if (from.empty()) {
-    return String::Empty;
-  }
-
-  Array<System::Byte> ^ bytes = REF_NEW Vector<System::Byte>(static_cast<ArrayIndexType>(from.size()));
-  cli::pin_ptr<System::Byte> pinned_ptr = &bytes[0];
-  for (size_t i = 0; i < from.size(); ++i) {
-    pinned_ptr[i] = from[i];
-  }
-  return System::Text::Encoding::UTF8->GetString(bytes);
-}
-
-}  // namespace CxCli
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/EventFd.h b/third-party/td/td/tdutils/td/utils/port/EventFd.h
deleted file mode 100644
index ff411a0c71..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/EventFd.h
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-// include all and let config.h decide
-#include "td/utils/port/detail/EventFdBsd.h"
-#include "td/utils/port/detail/EventFdLinux.h"
-#include "td/utils/port/detail/EventFdWindows.h"
-
-namespace td {
-
-// clang-format off
-
-#if TD_EVENTFD_LINUX
-  using EventFd = detail::EventFdLinux;
-#elif TD_EVENTFD_BSD
-  using EventFd = detail::EventFdBsd;
-#elif TD_EVENTFD_WINDOWS
-  using EventFd = detail::EventFdWindows;
-#elif TD_EVENTFD_UNSUPPORTED
-#else
-  #error "EventFd's implementation is not defined"
-#endif
-
-// clang-format on
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/EventFdBase.h b/third-party/td/td/tdutils/td/utils/port/EventFdBase.h
deleted file mode 100644
index be0195cae8..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/EventFdBase.h
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-class EventFdBase {
- public:
-  EventFdBase() = default;
-  EventFdBase(const EventFdBase &) = delete;
-  EventFdBase &operator=(const EventFdBase &) = delete;
-  EventFdBase(EventFdBase &&) = default;
-  EventFdBase &operator=(EventFdBase &&) = default;
-  virtual ~EventFdBase() = default;
-
-  virtual void init() = 0;
-  virtual bool empty() = 0;
-  virtual void close() = 0;
-  virtual PollableFdInfo &get_poll_info() = 0;
-  virtual Status get_pending_error() TD_WARN_UNUSED_RESULT = 0;
-  virtual void release() = 0;
-  virtual void acquire() = 0;
-  virtual void wait(int timeout_ms) = 0;
-};
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/FileFd.cpp b/third-party/td/td/tdutils/td/utils/port/FileFd.cpp
deleted file mode 100644
index 69f54e3c96..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/FileFd.cpp
+++ /dev/null
@@ -1,698 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/FileFd.h"
-
-#if TD_PORT_WINDOWS
-#include "td/utils/port/FromApp.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/port/wstring_convert.h"
-#endif
-
-#include "td/utils/common.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-
-#include <cstring>
-#include <mutex>
-#include <utility>
-
-#if TD_PORT_POSIX
-#include <cerrno>
-
-#include <fcntl.h>
-#include <sys/file.h>
-#include <sys/types.h>
-#include <sys/uio.h>
-#include <unistd.h>
-#else
-#include <limits>
-#endif
-
-#if TD_PORT_WINDOWS && defined(WIN32_LEAN_AND_MEAN)
-#include <winioctl.h>
-#endif
-
-namespace td {
-
-namespace {
-
-struct PrintFlags {
-  int32 flags;
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const PrintFlags &print_flags) {
-  auto flags = print_flags.flags;
-  if (flags & ~(FileFd::Write | FileFd::Read | FileFd::Truncate | FileFd::Create | FileFd::Append | FileFd::CreateNew |
-                FileFd::Direct | FileFd::WinStat)) {
-    return sb << "opened with invalid flags " << flags;
-  }
-
-  if (flags & FileFd::Create) {
-    sb << "opened/created ";
-  } else if (flags & FileFd::CreateNew) {
-    sb << "created ";
-  } else {
-    sb << "opened ";
-  }
-
-  if ((flags & FileFd::Write) && (flags & FileFd::Read)) {
-    if (flags & FileFd::Append) {
-      sb << "for reading and appending";
-    } else {
-      sb << "for reading and writing";
-    }
-  } else if (flags & FileFd::Write) {
-    if (flags & FileFd::Append) {
-      sb << "for appending";
-    } else {
-      sb << "for writing";
-    }
-  } else if (flags & FileFd::Read) {
-    sb << "for reading";
-  } else {
-    sb << "for nothing";
-  }
-
-  if (flags & FileFd::Truncate) {
-    sb << " with truncation";
-  }
-  if (flags & FileFd::Direct) {
-    sb << " for direct io";
-  }
-  if (flags & FileFd::WinStat) {
-    sb << " for stat";
-  }
-  return sb;
-}
-
-}  // namespace
-
-namespace detail {
-class FileFdImpl {
- public:
-  PollableFdInfo info_;
-};
-}  // namespace detail
-
-FileFd::FileFd() = default;
-FileFd::FileFd(FileFd &&) noexcept = default;
-FileFd &FileFd::operator=(FileFd &&) noexcept = default;
-FileFd::~FileFd() = default;
-
-FileFd::FileFd(unique_ptr<detail::FileFdImpl> impl) : impl_(std::move(impl)) {
-}
-
-Result<FileFd> FileFd::open(CSlice filepath, int32 flags, int32 mode) {
-  if (flags & ~(Write | Read | Truncate | Create | Append | CreateNew | Direct | WinStat)) {
-    return Status::Error(PSLICE() << "File \"" << filepath << "\" has failed to be " << PrintFlags{flags});
-  }
-
-  if ((flags & (Write | Read)) == 0) {
-    return Status::Error(PSLICE() << "File \"" << filepath << "\" can't be " << PrintFlags{flags});
-  }
-
-#if TD_PORT_POSIX
-  int native_flags = 0;
-
-  if ((flags & Write) && (flags & Read)) {
-    native_flags |= O_RDWR;
-  } else if (flags & Write) {
-    native_flags |= O_WRONLY;
-  } else {
-    CHECK(flags & Read);
-    native_flags |= O_RDONLY;
-  }
-
-  if (flags & Truncate) {
-    native_flags |= O_TRUNC;
-  }
-
-  if (flags & Create) {
-    native_flags |= O_CREAT;
-  } else if (flags & CreateNew) {
-    native_flags |= O_CREAT;
-    native_flags |= O_EXCL;
-  }
-
-  if (flags & Append) {
-    native_flags |= O_APPEND;
-  }
-
-#if TD_LINUX
-  if (flags & Direct) {
-    native_flags |= O_DIRECT;
-  }
-#endif
-
-  while (true) {
-    int native_fd =
-        detail::skip_eintr([&] { return ::open(filepath.c_str(), native_flags, static_cast<mode_t>(mode)); });
-    if (native_fd < 0) {
-      return OS_ERROR(PSLICE() << "File \"" << filepath << "\" can't be " << PrintFlags{flags});
-    }
-    // Avoid the use of low-numbered file descriptors, which can be used directly by some other functions
-    constexpr int MINIMUM_FILE_DESCRIPTOR = 3;
-    if (native_fd < MINIMUM_FILE_DESCRIPTOR) {
-      ::close(native_fd);
-      LOG(ERROR) << "Receive " << native_fd << " as a file descriptor";
-      int dummy_fd = detail::skip_eintr([&] { return ::open("/dev/null", O_RDONLY, 0); });
-      if (dummy_fd < 0) {
-        return OS_ERROR("Can't open /dev/null");
-      }
-      continue;
-    }
-    return from_native_fd(NativeFd(native_fd));
-  }
-#elif TD_PORT_WINDOWS
-  // TODO: support modes
-  auto r_filepath = to_wstring(filepath);
-  if (r_filepath.is_error()) {
-    return Status::Error(PSLICE() << "Failed to convert file path \" << filepath << \" to UTF-16");
-  }
-  auto w_filepath = r_filepath.move_as_ok();
-  DWORD desired_access = 0;
-  if ((flags & Write) && (flags & Read)) {
-    desired_access |= GENERIC_READ | GENERIC_WRITE;
-  } else if (flags & Write) {
-    desired_access |= GENERIC_WRITE;
-  } else {
-    CHECK(flags & Read);
-    desired_access |= GENERIC_READ;
-  }
-
-  // TODO: share mode
-  DWORD share_mode = FILE_SHARE_READ | FILE_SHARE_DELETE | FILE_SHARE_WRITE;
-
-  DWORD native_flags = 0;
-
-  DWORD creation_disposition = 0;
-  if (flags & Create) {
-    if (flags & Truncate) {
-      creation_disposition = CREATE_ALWAYS;
-    } else {
-      creation_disposition = OPEN_ALWAYS;
-    }
-  } else if (flags & CreateNew) {
-    creation_disposition = CREATE_NEW;
-  } else {
-    if (flags & Truncate) {
-      creation_disposition = TRUNCATE_EXISTING;
-    } else {
-      creation_disposition = OPEN_EXISTING;
-    }
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-    native_flags |= FILE_FLAG_OPEN_REPARSE_POINT;
-#endif
-  }
-
-  if (flags & Direct) {
-    native_flags |= FILE_FLAG_WRITE_THROUGH | FILE_FLAG_NO_BUFFERING;
-  }
-  if (flags & WinStat) {
-    native_flags |= FILE_FLAG_BACKUP_SEMANTICS;
-  }
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-  auto handle =
-      CreateFile(w_filepath.c_str(), desired_access, share_mode, nullptr, creation_disposition, native_flags, nullptr);
-#else
-  CREATEFILE2_EXTENDED_PARAMETERS extended_parameters;
-  std::memset(&extended_parameters, 0, sizeof(extended_parameters));
-  extended_parameters.dwSize = sizeof(extended_parameters);
-  extended_parameters.dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
-  extended_parameters.dwFileFlags = native_flags;
-  auto handle = td::CreateFile2FromAppW(w_filepath.c_str(), desired_access, share_mode, creation_disposition,
-                                        &extended_parameters);
-#endif
-  if (handle == INVALID_HANDLE_VALUE) {
-    return OS_ERROR(PSLICE() << "File \"" << filepath << "\" can't be " << PrintFlags{flags});
-  }
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-  if (flags & Write) {
-    DWORD bytes_returned = 0;
-    DeviceIoControl(handle, FSCTL_SET_SPARSE, nullptr, 0, nullptr, 0, &bytes_returned, nullptr);
-  }
-#endif
-  auto native_fd = NativeFd(handle);
-  if (flags & Append) {
-    LARGE_INTEGER offset;
-    offset.QuadPart = 0;
-    auto set_pointer_res = SetFilePointerEx(handle, offset, nullptr, FILE_END);
-    if (!set_pointer_res) {
-      return OS_ERROR(PSLICE() << "Failed to seek to the end of file \"" << filepath << "\"");
-    }
-  }
-  return from_native_fd(std::move(native_fd));
-#endif
-}
-
-FileFd FileFd::from_native_fd(NativeFd native_fd) {
-  auto impl = make_unique<detail::FileFdImpl>();
-  impl->info_.set_native_fd(std::move(native_fd));
-  impl->info_.add_flags(PollFlags::Write());
-  return FileFd(std::move(impl));
-}
-
-Result<size_t> FileFd::write(Slice slice) {
-  auto native_fd = get_native_fd().fd();
-#if TD_PORT_POSIX
-  auto bytes_written = detail::skip_eintr([&] { return ::write(native_fd, slice.begin(), slice.size()); });
-  bool success = bytes_written >= 0;
-#elif TD_PORT_WINDOWS
-  DWORD bytes_written = 0;
-  BOOL success = WriteFile(native_fd, slice.data(), narrow_cast<DWORD>(slice.size()), &bytes_written, nullptr);
-#endif
-  if (success) {
-    auto result = narrow_cast<size_t>(bytes_written);
-    CHECK(result <= slice.size());
-    return result;
-  }
-  return OS_ERROR(PSLICE() << "Write to " << get_native_fd() << " has failed");
-}
-
-Result<size_t> FileFd::writev(Span<IoSlice> slices) {
-#if TD_PORT_POSIX
-  auto native_fd = get_native_fd().fd();
-  TRY_RESULT(slices_size, narrow_cast_safe<int>(slices.size()));
-  auto bytes_written = detail::skip_eintr([&] { return ::writev(native_fd, slices.begin(), slices_size); });
-  bool success = bytes_written >= 0;
-  if (success) {
-    auto result = narrow_cast<size_t>(bytes_written);
-    auto left = result;
-    for (const auto &slice : slices) {
-      if (left <= slice.iov_len) {
-        return result;
-      }
-      left -= slice.iov_len;
-    }
-    UNREACHABLE();
-  }
-  return OS_ERROR(PSLICE() << "Writev to " << get_native_fd() << " has failed");
-#else
-  size_t res = 0;
-  for (const auto &slice : slices) {
-    if (slice.size() > std::numeric_limits<size_t>::max() - res) {
-      break;
-    }
-    TRY_RESULT(size, write(slice));
-    res += size;
-    if (size != slice.size()) {
-      CHECK(size < slice.size());
-      break;
-    }
-  }
-  return res;
-#endif
-}
-
-Result<size_t> FileFd::read(MutableSlice slice) {
-  auto native_fd = get_native_fd().fd();
-#if TD_PORT_POSIX
-  auto bytes_read = detail::skip_eintr([&] { return ::read(native_fd, slice.begin(), slice.size()); });
-  bool success = bytes_read >= 0;
-  if (!success) {
-    auto read_errno = errno;
-    if (read_errno == EAGAIN
-#if EAGAIN != EWOULDBLOCK
-        || read_errno == EWOULDBLOCK
-#endif
-    ) {
-      success = true;
-      bytes_read = 0;
-    }
-  }
-  bool is_eof = success && narrow_cast<size_t>(bytes_read) < slice.size();
-#elif TD_PORT_WINDOWS
-  DWORD bytes_read = 0;
-  BOOL success = ReadFile(native_fd, slice.data(), narrow_cast<DWORD>(slice.size()), &bytes_read, nullptr);
-  bool is_eof = bytes_read == 0;
-#endif
-  if (success) {
-    if (is_eof) {
-      get_poll_info().clear_flags(PollFlags::Read());
-    }
-    auto result = narrow_cast<size_t>(bytes_read);
-    CHECK(result <= slice.size());
-    return result;
-  }
-  return OS_ERROR(PSLICE() << "Read from " << get_native_fd() << " has failed");
-}
-
-Result<size_t> FileFd::pwrite(Slice slice, int64 offset) {
-  if (offset < 0) {
-    return Status::Error("Offset must be non-negative");
-  }
-  auto native_fd = get_native_fd().fd();
-#if TD_PORT_POSIX
-  TRY_RESULT(offset_off_t, narrow_cast_safe<off_t>(offset));
-  auto bytes_written =
-      detail::skip_eintr([&] { return ::pwrite(native_fd, slice.begin(), slice.size(), offset_off_t); });
-  bool success = bytes_written >= 0;
-#elif TD_PORT_WINDOWS
-  DWORD bytes_written = 0;
-  OVERLAPPED overlapped;
-  std::memset(&overlapped, 0, sizeof(overlapped));
-  overlapped.Offset = static_cast<DWORD>(offset);
-  overlapped.OffsetHigh = static_cast<DWORD>(offset >> 32);
-  BOOL success = WriteFile(native_fd, slice.data(), narrow_cast<DWORD>(slice.size()), &bytes_written, &overlapped);
-#endif
-  if (success) {
-    auto result = narrow_cast<size_t>(bytes_written);
-    CHECK(result <= slice.size());
-    return result;
-  }
-  return OS_ERROR(PSLICE() << "Pwrite to " << get_native_fd() << " at offset " << offset << " has failed");
-}
-
-Result<size_t> FileFd::pread(MutableSlice slice, int64 offset) const {
-  if (offset < 0) {
-    return Status::Error("Offset must be non-negative");
-  }
-  auto native_fd = get_native_fd().fd();
-#if TD_PORT_POSIX
-  TRY_RESULT(offset_off_t, narrow_cast_safe<off_t>(offset));
-  auto bytes_read = detail::skip_eintr([&] { return ::pread(native_fd, slice.begin(), slice.size(), offset_off_t); });
-  bool success = bytes_read >= 0;
-#elif TD_PORT_WINDOWS
-  DWORD bytes_read = 0;
-  OVERLAPPED overlapped;
-  std::memset(&overlapped, 0, sizeof(overlapped));
-  overlapped.Offset = static_cast<DWORD>(offset);
-  overlapped.OffsetHigh = static_cast<DWORD>(offset >> 32);
-  BOOL success = ReadFile(native_fd, slice.data(), narrow_cast<DWORD>(slice.size()), &bytes_read, &overlapped);
-#endif
-  if (success) {
-    auto result = narrow_cast<size_t>(bytes_read);
-    CHECK(result <= slice.size());
-    return result;
-  }
-  return OS_ERROR(PSLICE() << "Pread from " << get_native_fd() << " at offset " << offset << " has failed");
-}
-
-static std::mutex in_process_lock_mutex;
-static FlatHashSet<string> locked_files;
-static ExitGuard exit_guard;
-
-static Status create_local_lock(const string &path, int32 &max_tries) {
-  while (true) {
-    {  // mutex lock scope
-      std::lock_guard<std::mutex> lock(in_process_lock_mutex);
-      if (!path.empty() && locked_files.count(path) == 0) {
-        VLOG(fd) << "Lock file \"" << path << '"';
-        locked_files.insert(path);
-        return Status::OK();
-      }
-    }
-
-    if (--max_tries <= 0) {
-      return Status::Error(
-          0, PSLICE() << "Can't lock file \"" << path << "\", because it is already in use by current program");
-    }
-
-    usleep_for(100000);
-  }
-}
-
-Status FileFd::lock(LockFlags flags, const string &path, int32 max_tries) {
-  if (max_tries <= 0) {
-    return Status::Error("Can't lock file: wrong max_tries");
-  }
-
-  bool need_local_unlock = false;
-  if (!path.empty()) {
-    if (flags == LockFlags::Unlock) {
-      need_local_unlock = true;
-    } else if (flags == LockFlags::Read) {
-      LOG(FATAL) << "Local locking in Read mode is unsupported";
-    } else {
-      CHECK(flags == LockFlags::Write);
-      VLOG(fd) << "Trying to lock file \"" << path << '"';
-      TRY_STATUS(create_local_lock(path, max_tries));
-      need_local_unlock = true;
-    }
-  }
-  SCOPE_EXIT {
-    if (need_local_unlock) {
-      remove_local_lock(path);
-    }
-  };
-
-#if TD_PORT_POSIX
-  auto native_fd = get_native_fd().fd();
-#elif TD_PORT_WINDOWS
-  auto native_fd = get_native_fd().fd();
-#endif
-  while (true) {
-#if TD_PORT_POSIX
-    struct flock lock;
-    std::memset(&lock, 0, sizeof(lock));
-
-    lock.l_type = static_cast<short>([&] {
-      switch (flags) {
-        case LockFlags::Read:
-          return F_RDLCK;
-        case LockFlags::Write:
-          return F_WRLCK;
-        case LockFlags::Unlock:
-          return F_UNLCK;
-        default:
-          UNREACHABLE();
-          return F_UNLCK;
-      }
-    }());
-
-    lock.l_whence = SEEK_SET;
-    if (fcntl(native_fd, F_SETLK, &lock) == -1) {
-      if (errno == EAGAIN) {
-#elif TD_PORT_WINDOWS
-    OVERLAPPED overlapped;
-    std::memset(&overlapped, 0, sizeof(overlapped));
-
-    BOOL result;
-    if (flags == LockFlags::Unlock) {
-      result = UnlockFileEx(native_fd, 0, MAXDWORD, MAXDWORD, &overlapped);
-    } else {
-      DWORD dw_flags = LOCKFILE_FAIL_IMMEDIATELY;
-      if (flags == LockFlags::Write) {
-        dw_flags |= LOCKFILE_EXCLUSIVE_LOCK;
-      }
-
-      result = LockFileEx(native_fd, dw_flags, 0, MAXDWORD, MAXDWORD, &overlapped);
-    }
-
-    if (!result) {
-      if (GetLastError() == ERROR_LOCK_VIOLATION) {
-#endif
-        if (--max_tries > 0) {
-          usleep_for(100000);
-          continue;
-        }
-
-        return OS_ERROR(PSLICE() << "Can't lock file \"" << path
-                                 << "\", because it is already in use; check for another program instance running");
-      }
-
-      return OS_ERROR("Can't lock file");
-    }
-
-    break;
-  }
-
-  if (flags == LockFlags::Write) {
-    need_local_unlock = false;
-  }
-  return Status::OK();
-}
-
-void FileFd::remove_local_lock(const string &path) {
-  if (path.empty() || ExitGuard::is_exited()) {
-    return;
-  }
-  VLOG(fd) << "Unlock file \"" << path << '"';
-  std::unique_lock<std::mutex> lock(in_process_lock_mutex);
-  auto erased_count = locked_files.erase(path);
-  CHECK(erased_count > 0 || path.empty() || ExitGuard::is_exited());
-}
-
-void FileFd::close() {
-  impl_.reset();
-}
-
-bool FileFd::empty() const {
-  return !impl_;
-}
-
-const NativeFd &FileFd::get_native_fd() const {
-  return get_poll_info().native_fd();
-}
-
-NativeFd FileFd::move_as_native_fd() {
-  auto res = get_poll_info().move_as_native_fd();
-  impl_.reset();
-  return res;
-}
-
-#if TD_PORT_WINDOWS
-namespace {
-
-uint64 filetime_to_unix_time_nsec(LONGLONG filetime) {
-  const auto FILETIME_UNIX_TIME_DIFF = 116444736000000000ll;
-  return static_cast<uint64>((filetime - FILETIME_UNIX_TIME_DIFF) * 100);
-}
-
-struct FileSize {
-  int64 size_;
-  int64 real_size_;
-};
-
-Result<FileSize> get_file_size(const FileFd &file_fd) {
-  FILE_STANDARD_INFO standard_info;
-  if (!GetFileInformationByHandleEx(file_fd.get_native_fd().fd(), FileStandardInfo, &standard_info,
-                                    sizeof(standard_info))) {
-    return OS_ERROR("Get FileStandardInfo failed");
-  }
-  FileSize res;
-  res.size_ = standard_info.EndOfFile.QuadPart;
-  res.real_size_ = standard_info.AllocationSize.QuadPart;
-
-  if (res.size_ > 0 && res.real_size_ <= 0) {  // just in case
-    LOG(ERROR) << "Fix real file size from " << res.real_size_ << " to " << res.size_;
-    res.real_size_ = res.size_;
-  }
-
-  return res;
-}
-
-}  // namespace
-#endif
-
-Result<int64> FileFd::get_size() const {
-#if TD_PORT_POSIX
-  TRY_RESULT(s, stat());
-#elif TD_PORT_WINDOWS
-  TRY_RESULT(s, get_file_size(*this));
-#endif
-  return s.size_;
-}
-
-Result<int64> FileFd::get_real_size() const {
-#if TD_PORT_POSIX
-  TRY_RESULT(s, stat());
-#elif TD_PORT_WINDOWS
-  TRY_RESULT(s, get_file_size(*this));
-#endif
-  return s.real_size_;
-}
-
-Result<Stat> FileFd::stat() const {
-  CHECK(!empty());
-#if TD_PORT_POSIX
-  return detail::fstat(get_native_fd().fd());
-#elif TD_PORT_WINDOWS
-  Stat res;
-
-  FILE_BASIC_INFO basic_info;
-  auto status = GetFileInformationByHandleEx(get_native_fd().fd(), FileBasicInfo, &basic_info, sizeof(basic_info));
-  if (!status) {
-    return OS_ERROR("Get FileBasicInfo failed");
-  }
-  res.atime_nsec_ = filetime_to_unix_time_nsec(basic_info.LastAccessTime.QuadPart);
-  res.mtime_nsec_ = filetime_to_unix_time_nsec(basic_info.LastWriteTime.QuadPart);
-  res.is_dir_ = (basic_info.FileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
-  if ((basic_info.FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0) {
-    FILE_ATTRIBUTE_TAG_INFO tag_info;
-    status = GetFileInformationByHandleEx(get_native_fd().fd(), FileAttributeTagInfo, &tag_info, sizeof(tag_info));
-    if (!status) {
-      return OS_ERROR("Get FileAttributeTagInfo failed");
-    }
-    res.is_reg_ = false;
-    res.is_symbolic_link_ =
-        (tag_info.FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0 && tag_info.ReparseTag == IO_REPARSE_TAG_SYMLINK;
-  } else {
-    res.is_reg_ = !res.is_dir_;
-    res.is_symbolic_link_ = false;
-  }
-
-  TRY_RESULT(file_size, get_file_size(*this));
-  res.size_ = file_size.size_;
-  res.real_size_ = file_size.real_size_;
-
-  return res;
-#endif
-}
-
-Status FileFd::sync() {
-  CHECK(!empty());
-#if TD_PORT_POSIX
-#if TD_DARWIN
-  if (detail::skip_eintr([&] { return fcntl(get_native_fd().fd(), F_FULLFSYNC); }) == -1) {
-#else
-  if (detail::skip_eintr([&] { return fsync(get_native_fd().fd()); }) != 0) {
-#endif
-#elif TD_PORT_WINDOWS
-  if (FlushFileBuffers(get_native_fd().fd()) == 0) {
-#endif
-    return OS_ERROR("Sync failed");
-  }
-  return Status::OK();
-}
-
-Status FileFd::sync_barrier() {
-  CHECK(!empty());
-#if TD_DARWIN && defined(F_BARRIERFSYNC)
-  if (detail::skip_eintr([&] { return fcntl(get_native_fd().fd(), F_BARRIERFSYNC); }) != -1) {
-    return Status::OK();
-  }
-#endif
-  return sync();
-}
-
-Status FileFd::seek(int64 position) {
-  CHECK(!empty());
-#if TD_PORT_POSIX
-  TRY_RESULT(position_off_t, narrow_cast_safe<off_t>(position));
-  if (detail::skip_eintr([&] { return ::lseek(get_native_fd().fd(), position_off_t, SEEK_SET); }) < 0) {
-#elif TD_PORT_WINDOWS
-  LARGE_INTEGER offset;
-  offset.QuadPart = position;
-  if (SetFilePointerEx(get_native_fd().fd(), offset, nullptr, FILE_BEGIN) == 0) {
-#endif
-    return OS_ERROR("Seek failed");
-  }
-  return Status::OK();
-}
-
-Status FileFd::truncate_to_current_position(int64 current_position) {
-  CHECK(!empty());
-#if TD_PORT_POSIX
-  TRY_RESULT(current_position_off_t, narrow_cast_safe<off_t>(current_position));
-  if (detail::skip_eintr([&] { return ::ftruncate(get_native_fd().fd(), current_position_off_t); }) < 0) {
-#elif TD_PORT_WINDOWS
-  if (SetEndOfFile(get_native_fd().fd()) == 0) {
-#endif
-    return OS_ERROR("Truncate failed");
-  }
-  return Status::OK();
-}
-PollableFdInfo &FileFd::get_poll_info() {
-  CHECK(!empty());
-  return impl_->info_;
-}
-const PollableFdInfo &FileFd::get_poll_info() const {
-  CHECK(!empty());
-  return impl_->info_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/FileFd.h b/third-party/td/td/tdutils/td/utils/port/FileFd.h
deleted file mode 100644
index 492a7f760b..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/FileFd.h
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/IoSlice.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace detail {
-class FileFdImpl;
-}  // namespace detail
-
-class FileFd {
- public:
-  FileFd();
-  FileFd(FileFd &&) noexcept;
-  FileFd &operator=(FileFd &&) noexcept;
-  ~FileFd();
-  FileFd(const FileFd &) = delete;
-  FileFd &operator=(const FileFd &) = delete;
-
-  enum Flags : int32 { Write = 1, Read = 2, Truncate = 4, Create = 8, Append = 16, CreateNew = 32, Direct = 64 };
-  enum PrivateFlags : int32 { WinStat = 128 };
-
-  static Result<FileFd> open(CSlice filepath, int32 flags, int32 mode = 0600) TD_WARN_UNUSED_RESULT;
-  static FileFd from_native_fd(NativeFd fd) TD_WARN_UNUSED_RESULT;
-
-  Result<size_t> write(Slice slice) TD_WARN_UNUSED_RESULT;
-  Result<size_t> writev(Span<IoSlice> slices) TD_WARN_UNUSED_RESULT;
-  Result<size_t> read(MutableSlice slice) TD_WARN_UNUSED_RESULT;
-
-  Result<size_t> pwrite(Slice slice, int64 offset) TD_WARN_UNUSED_RESULT;
-  Result<size_t> pread(MutableSlice slice, int64 offset) const TD_WARN_UNUSED_RESULT;
-
-  enum class LockFlags { Write, Read, Unlock };
-  Status lock(LockFlags flags, const string &path, int32 max_tries) TD_WARN_UNUSED_RESULT;
-  static void remove_local_lock(const string &path);
-
-  PollableFdInfo &get_poll_info();
-  const PollableFdInfo &get_poll_info() const;
-
-  void close();
-
-  bool empty() const;
-
-  Result<int64> get_size() const;
-
-  Result<int64> get_real_size() const;
-
-  Result<Stat> stat() const;
-
-  Status sync() TD_WARN_UNUSED_RESULT;
-  Status sync_barrier() TD_WARN_UNUSED_RESULT;
-
-  Status seek(int64 position) TD_WARN_UNUSED_RESULT;
-
-  Status truncate_to_current_position(int64 current_position) TD_WARN_UNUSED_RESULT;
-
-  const NativeFd &get_native_fd() const;
-  NativeFd move_as_native_fd();
-
- private:
-  unique_ptr<detail::FileFdImpl> impl_;
-
-  explicit FileFd(unique_ptr<detail::FileFdImpl> impl);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/FromApp.h b/third-party/td/td/tdutils/td/utils/port/FromApp.h
deleted file mode 100644
index a7246b91c6..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/FromApp.h
+++ /dev/null
@@ -1,100 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-#ifdef TD_PORT_WINDOWS
-
-namespace td {
-
-#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-inline HMODULE GetKernelModule() {
-  static const auto kernel_module = []() -> HMODULE {
-    MEMORY_BASIC_INFORMATION mbi;
-    if (VirtualQuery(VirtualQuery, &mbi, sizeof(MEMORY_BASIC_INFORMATION))) {
-      return reinterpret_cast<HMODULE>(mbi.AllocationBase);
-    }
-    return nullptr;
-  }();
-  return kernel_module;
-}
-
-inline HMODULE LoadLibrary(LPCTSTR lpFileName) {
-  using pLoadLibrary = HMODULE(WINAPI *)(_In_ LPCTSTR);
-  static const auto proc_load_library =
-      reinterpret_cast<pLoadLibrary>(GetProcAddress(GetKernelModule(), "LoadLibraryW"));
-  return proc_load_library(lpFileName);
-}
-
-inline HMODULE GetFromAppModule() {
-  static const HMODULE from_app_module = LoadLibrary(L"api-ms-win-core-file-fromapp-l1-1-0.dll");
-  return from_app_module;
-}
-#endif
-
-template <int num, class T>
-T *get_from_app_function(const char *name, T *original_func) {
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-  return original_func;
-#else
-  static T *func = [name, original_func]() -> T * {
-    auto func_pointer = GetProcAddress(GetFromAppModule(), name);
-    if (func_pointer == nullptr) {
-      return original_func;
-    }
-    return reinterpret_cast<T *>(func_pointer);
-  }();
-  return func;
-#endif
-}
-
-inline HANDLE CreateFile2FromAppW(_In_ LPCWSTR lpFileName, _In_ DWORD dwDesiredAccess, _In_ DWORD dwShareMode,
-                                  _In_ DWORD dwCreationDisposition,
-                                  _In_opt_ LPCREATEFILE2_EXTENDED_PARAMETERS pCreateExParams) {
-  auto func = get_from_app_function<0>("CreateFile2FromAppW", &CreateFile2);
-  return func(lpFileName, dwDesiredAccess, dwShareMode, dwCreationDisposition, pCreateExParams);
-}
-
-inline BOOL CreateDirectoryFromAppW(_In_ LPCWSTR lpPathName, _In_opt_ LPSECURITY_ATTRIBUTES lpSecurityAttributes) {
-  auto func = get_from_app_function<1>("CreateDirectoryFromAppW", &CreateDirectory);
-  return func(lpPathName, lpSecurityAttributes);
-}
-
-inline BOOL RemoveDirectoryFromAppW(_In_ LPCWSTR lpPathName) {
-  auto func = get_from_app_function<2>("RemoveDirectoryFromAppW", &RemoveDirectory);
-  return func(lpPathName);
-}
-
-inline BOOL DeleteFileFromAppW(_In_ LPCWSTR lpFileName) {
-  auto func = get_from_app_function<3>("DeleteFileFromAppW", &DeleteFile);
-  return func(lpFileName);
-}
-
-inline BOOL MoveFileExFromAppW(_In_ LPCWSTR lpExistingFileName, _In_ LPCWSTR lpNewFileName, _In_ DWORD dwFlags) {
-  auto func = get_from_app_function<4>("MoveFileFromAppW", static_cast<BOOL(WINAPI *)(LPCWSTR, LPCWSTR)>(nullptr));
-  if (func == nullptr || (dwFlags & ~MOVEFILE_REPLACE_EXISTING) != 0) {
-    // if can't find MoveFileFromAppW or have unsupported flags, call MoveFileEx directly
-    return MoveFileEx(lpExistingFileName, lpNewFileName, dwFlags);
-  }
-  if ((dwFlags & MOVEFILE_REPLACE_EXISTING) != 0) {
-    td::DeleteFileFromAppW(lpNewFileName);
-  }
-  return func(lpExistingFileName, lpNewFileName);
-}
-
-inline HANDLE FindFirstFileExFromAppW(_In_ LPCWSTR lpFileName, _In_ FINDEX_INFO_LEVELS fInfoLevelId,
-                                      _Out_writes_bytes_(sizeof(WIN32_FIND_DATAW)) LPVOID lpFindFileData,
-                                      _In_ FINDEX_SEARCH_OPS fSearchOp, _Reserved_ LPVOID lpSearchFilter,
-                                      _In_ DWORD dwAdditionalFlags) {
-  auto func = get_from_app_function<5>("FindFirstFileExFromAppW", &FindFirstFileEx);
-  return func(lpFileName, fInfoLevelId, lpFindFileData, fSearchOp, lpSearchFilter, dwAdditionalFlags);
-}
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/IPAddress.cpp b/third-party/td/td/tdutils/td/utils/port/IPAddress.cpp
deleted file mode 100644
index b930f9c80a..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/IPAddress.cpp
+++ /dev/null
@@ -1,666 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#define _WINSOCK_DEPRECATED_NO_WARNINGS  // we need to use inet_addr instead of inet_pton
-
-#include "td/utils/port/IPAddress.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/utf8.h"
-
-#if TD_WINDOWS
-#include "td/utils/port/wstring_convert.h"
-#else
-#include <netdb.h>
-#include <netinet/tcp.h>
-#include <sys/types.h>
-#endif
-
-#include <cstring>
-#include <limits>
-
-namespace td {
-
-static bool is_ascii_host_char(char c) {
-  return static_cast<unsigned char>(c) <= 127;
-}
-
-static bool is_ascii_host(Slice host) {
-  for (auto c : host) {
-    if (!is_ascii_host_char(c)) {
-      return false;
-    }
-  }
-  return true;
-}
-
-#if !TD_WINDOWS
-static void punycode(string &result, Slice part) {
-  vector<uint32> codes;
-  codes.reserve(utf8_length(part));
-  uint32 processed = 0;
-  auto begin = part.ubegin();
-  auto end = part.uend();
-  while (begin != end) {
-    uint32 code;
-    begin = next_utf8_unsafe(begin, &code);
-    if (code <= 127u) {
-      result += to_lower(static_cast<char>(code));
-      processed++;
-    }
-    codes.push_back(code);
-  }
-
-  if (processed > 0) {
-    result += '-';
-  }
-
-  uint32 n = 127;
-  uint32 delta = 0;
-  int bias = -72;
-  bool is_first = true;
-  while (processed < codes.size()) {
-    // choose lowest not processed code
-    uint32 next_n = 0x110000;
-    for (auto code : codes) {
-      if (code > n && code < next_n) {
-        next_n = code;
-      }
-    }
-    delta += (next_n - n - 1) * (processed + 1);
-
-    for (auto code : codes) {
-      if (code < next_n) {
-        delta++;
-      }
-
-      if (code == next_n) {
-        // found next symbol, encode delta
-        auto left = static_cast<int>(delta);
-        while (true) {
-          bias += 36;
-          auto t = clamp(bias, 1, 26);
-          if (left < t) {
-            result += static_cast<char>(left + 'a');
-            break;
-          }
-
-          left -= t;
-          auto digit = t + left % (36 - t);
-          result += static_cast<char>(digit < 26 ? digit + 'a' : digit - 26 + '0');
-          left /= 36 - t;
-        }
-        processed++;
-
-        // update bias
-        if (is_first) {
-          delta /= 700;
-          is_first = false;
-        } else {
-          delta /= 2;
-        }
-        delta += delta / processed;
-
-        bias = 0;
-        while (delta > 35 * 13) {
-          delta /= 35;
-          bias -= 36;
-        }
-        bias -= static_cast<int>(36 * delta / (delta + 38));
-        delta = 0;
-      }
-    }
-
-    delta++;
-    n = next_n;
-  }
-}
-#endif
-
-Result<string> idn_to_ascii(CSlice host) {
-  if (is_ascii_host(host)) {
-    return to_lower(host);
-  }
-  if (!check_utf8(host)) {
-    return Status::Error("Host name must be encoded in UTF-8");
-  }
-
-  const int MAX_DNS_NAME_LENGTH = 255;
-  if (host.size() >= MAX_DNS_NAME_LENGTH * 4) {  // upper bound, 4 characters per symbol
-    return Status::Error("Host name is too long");
-  }
-
-#if TD_WINDOWS
-  TRY_RESULT(whost, to_wstring(host));
-  wchar_t punycode[MAX_DNS_NAME_LENGTH + 1];
-  int result_length =
-      IdnToAscii(IDN_ALLOW_UNASSIGNED, whost.c_str(), narrow_cast<int>(whost.size()), punycode, MAX_DNS_NAME_LENGTH);
-  if (result_length == 0) {
-    return Status::Error("Host can't be converted to ASCII");
-  }
-
-  TRY_RESULT(idn_host, from_wstring(punycode, result_length));
-  return idn_host;
-#else
-  auto parts = full_split(Slice(host), '.');
-  bool is_first = true;
-  string result;
-  result.reserve(host.size());
-  for (auto part : parts) {
-    if (!is_first) {
-      result += '.';
-    }
-    if (is_ascii_host(part)) {
-      result.append(part.data(), part.size());
-    } else {
-      // TODO nameprep should be applied first, but punycode is better than nothing.
-      // It is better to use libidn/ICU here if available
-      result += "xn--";
-      punycode(result, part);
-    }
-    is_first = false;
-  }
-  return result;
-#endif
-}
-
-static CSlice get_ip_str(int family, const void *addr) {
-  const int buf_size = INET6_ADDRSTRLEN;
-  static TD_THREAD_LOCAL char *buf;
-  init_thread_local<char[]>(buf, buf_size);
-
-  const char *res = inet_ntop(family,
-#if TD_WINDOWS
-                              const_cast<PVOID>(addr),
-#else
-                              addr,
-#endif
-                              buf, buf_size);
-  if (res == nullptr) {
-    return CSlice();
-  } else {
-    return CSlice(res);
-  }
-}
-
-IPAddress::IPAddress() : is_valid_(false) {
-}
-
-bool IPAddress::is_valid() const {
-  return is_valid_;
-}
-
-bool IPAddress::is_reserved() const {
-  CHECK(is_valid());
-
-  if (is_ipv6()) {
-    // TODO proper check for reserved IPv6 addresses
-    return true;
-  }
-
-  uint32 ip = get_ipv4();
-  struct IpBlock {
-    CSlice ip;
-    int mask;
-    IpBlock(CSlice ip, int mask) : ip(ip), mask(mask) {
-    }
-  };
-  static const IpBlock blocks[] = {{"0.0.0.0", 8},      {"10.0.0.0", 8},     {"100.64.0.0", 10}, {"127.0.0.0", 8},
-                                   {"169.254.0.0", 16}, {"172.16.0.0", 12},  {"192.0.0.0", 24},  {"192.0.2.0", 24},
-                                   {"192.88.99.0", 24}, {"192.168.0.0", 16}, {"198.18.0.0", 15}, {"198.51.100.0", 24},
-                                   {"203.0.113.0", 24}, {"224.0.0.0", 3}};
-  for (auto &block : blocks) {
-    IPAddress block_ip_address;
-    block_ip_address.init_ipv4_port(block.ip, 80).ensure();
-    uint32 range = block_ip_address.get_ipv4();
-    CHECK(block.mask != 0);
-    uint32 mask = std::numeric_limits<uint32>::max() >> (32 - block.mask) << (32 - block.mask);
-    if ((ip & mask) == (range & mask)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-const sockaddr *IPAddress::get_sockaddr() const {
-  CHECK(is_valid());
-  return &sockaddr_;
-}
-
-size_t IPAddress::get_sockaddr_len() const {
-  CHECK(is_valid());
-  switch (sockaddr_.sa_family) {
-    case AF_INET6:
-      return sizeof(ipv6_addr_);
-    case AF_INET:
-      return sizeof(ipv4_addr_);
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-int IPAddress::get_address_family() const {
-  return get_sockaddr()->sa_family;
-}
-
-bool IPAddress::is_ipv4() const {
-  return is_valid() && get_address_family() == AF_INET;
-}
-
-bool IPAddress::is_ipv6() const {
-  return is_valid() && get_address_family() == AF_INET6;
-}
-
-uint32 IPAddress::get_ipv4() const {
-  CHECK(is_valid());
-  CHECK(is_ipv4());
-  return htonl(ipv4_addr_.sin_addr.s_addr);
-}
-
-string IPAddress::get_ipv6() const {
-  static_assert(sizeof(ipv6_addr_.sin6_addr) == 16, "ipv6 size == 16");
-  CHECK(is_valid());
-  CHECK(!is_ipv4());
-  return Slice(ipv6_addr_.sin6_addr.s6_addr, 16).str();
-}
-
-IPAddress IPAddress::get_any_addr() const {
-  IPAddress res;
-  switch (get_address_family()) {
-    case AF_INET6:
-      res.init_ipv6_any();
-      break;
-    case AF_INET:
-      res.init_ipv4_any();
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  return res;
-}
-
-void IPAddress::init_ipv4_any() {
-  is_valid_ = true;
-  std::memset(&ipv4_addr_, 0, sizeof(ipv4_addr_));
-  ipv4_addr_.sin_family = AF_INET;
-  ipv4_addr_.sin_addr.s_addr = INADDR_ANY;
-  ipv4_addr_.sin_port = 0;
-}
-
-void IPAddress::init_ipv6_any() {
-  is_valid_ = true;
-  std::memset(&ipv6_addr_, 0, sizeof(ipv6_addr_));
-  ipv6_addr_.sin6_family = AF_INET6;
-  ipv6_addr_.sin6_addr = in6addr_any;
-  ipv6_addr_.sin6_port = 0;
-}
-
-Status IPAddress::init_ipv6_port(CSlice ipv6, int port) {
-  is_valid_ = false;
-  if (port <= 0 || port >= (1 << 16)) {
-    return Status::Error(PSLICE() << "Invalid [IPv6 address port=" << port << "]");
-  }
-  string ipv6_plain;
-  if (ipv6.size() > 2 && ipv6[0] == '[' && ipv6.back() == ']') {
-    ipv6_plain.assign(ipv6.begin() + 1, ipv6.size() - 2);
-    ipv6 = ipv6_plain;
-  }
-  std::memset(&ipv6_addr_, 0, sizeof(ipv6_addr_));
-  ipv6_addr_.sin6_family = AF_INET6;
-  ipv6_addr_.sin6_port = htons(static_cast<uint16>(port));
-  int err = inet_pton(AF_INET6, ipv6.c_str(), &ipv6_addr_.sin6_addr);
-  if (err == 0) {
-    return Status::Error(PSLICE() << "Failed inet_pton(AF_INET6, " << ipv6 << ")");
-  } else if (err == -1) {
-    return OS_SOCKET_ERROR(PSLICE() << "Failed inet_pton(AF_INET6, " << ipv6 << ")");
-  }
-  is_valid_ = true;
-  return Status::OK();
-}
-
-Status IPAddress::init_ipv6_as_ipv4_port(CSlice ipv4, int port) {
-  return init_ipv6_port(string("::FFFF:").append(ipv4.begin(), ipv4.size()), port);
-}
-
-Status IPAddress::init_ipv4_port(CSlice ipv4, int port) {
-  is_valid_ = false;
-  if (port <= 0 || port >= (1 << 16)) {
-    return Status::Error(PSLICE() << "Invalid [IPv4 address port=" << port << "]");
-  }
-  std::memset(&ipv4_addr_, 0, sizeof(ipv4_addr_));
-  ipv4_addr_.sin_family = AF_INET;
-  ipv4_addr_.sin_port = htons(static_cast<uint16>(port));
-  int err = inet_pton(AF_INET, ipv4.c_str(), &ipv4_addr_.sin_addr);
-  if (err == 0) {
-    return Status::Error(PSLICE() << "Failed inet_pton(AF_INET, " << ipv4 << ")");
-  } else if (err == -1) {
-    return OS_SOCKET_ERROR(PSLICE() << "Failed inet_pton(AF_INET, " << ipv4 << ")");
-  }
-  is_valid_ = true;
-  return Status::OK();
-}
-
-Result<IPAddress> IPAddress::get_ip_address(CSlice host) {
-  auto r_address = get_ipv4_address(host);
-  if (r_address.is_ok()) {
-    return r_address.move_as_ok();
-  }
-  r_address = get_ipv6_address(host);
-  if (r_address.is_ok()) {
-    return r_address.move_as_ok();
-  }
-  return Status::Error(PSLICE() << '"' << host << "\" is not a valid IP address");
-}
-
-Result<IPAddress> IPAddress::get_ipv4_address(CSlice host) {
-  // sometimes inet_addr allows much more valid IPv4 hosts than inet_pton,
-  // like 0x12.0x34.0x56.0x78, or 0x12345678, or 0x7f.001
-  auto ipv4_numeric_addr = inet_addr(host.c_str());
-  if (ipv4_numeric_addr == INADDR_NONE) {
-    return Status::Error(PSLICE() << '"' << host << "\" is not a valid IPv4 address");
-  }
-
-  host = ::td::get_ip_str(AF_INET, &ipv4_numeric_addr);
-  IPAddress result;
-  auto status = result.init_ipv4_port(host, 1);
-  if (status.is_error()) {
-    return std::move(status);
-  }
-  return std::move(result);
-}
-
-Result<IPAddress> IPAddress::get_ipv6_address(CSlice host) {
-  IPAddress result;
-  auto status = result.init_ipv6_port(host, 1);
-  if (status.is_error()) {
-    return Status::Error(PSLICE() << '"' << host << "\" is not a valid IPv6 address");
-  }
-  return std::move(result);
-}
-
-Status IPAddress::init_host_port(CSlice host, int port, bool prefer_ipv6) {
-  if (host.size() > 2 && host[0] == '[' && host.back() == ']') {
-    return init_ipv6_port(host, port == 0 ? 1 : port);
-  }
-
-  return init_host_port(host, PSLICE() << port, prefer_ipv6);
-}
-
-Status IPAddress::init_host_port(CSlice host, CSlice port, bool prefer_ipv6) {
-  is_valid_ = false;
-  if (host.empty()) {
-    return Status::Error("Host is empty");
-  }
-#if TD_WINDOWS
-  if (host == "..localmachine") {
-    return Status::Error("Host is invalid");
-  }
-#endif
-  TRY_RESULT(ascii_host, idn_to_ascii(host));
-  host = ascii_host;  // assign string to CSlice
-
-  if (host[0] == '[' && host.back() == ']') {
-    auto port_int = to_integer<int>(port);
-    return init_ipv6_port(host, port_int == 0 ? 1 : port_int);
-  }
-
-  // some getaddrinfo implementations use inet_pton instead of inet_aton and support only decimal-dotted IPv4 form,
-  // and so doesn't recognize 0x12.0x34.0x56.0x78, or 0x12345678, or 0x7f.001 as valid IPv4 addresses
-  auto ipv4_numeric_addr = inet_addr(host.c_str());
-  if (ipv4_numeric_addr != INADDR_NONE) {
-    host = ::td::get_ip_str(AF_INET, &ipv4_numeric_addr);
-  }
-
-  addrinfo hints;
-  addrinfo *info = nullptr;
-  std::memset(&hints, 0, sizeof(hints));
-  hints.ai_family = AF_UNSPEC;
-  hints.ai_socktype = SOCK_STREAM;
-  hints.ai_protocol = IPPROTO_TCP;
-  LOG(DEBUG + 10) << "Trying to init IP address of " << host << " with port " << port;
-  auto err = getaddrinfo(host.c_str(), port.c_str(), &hints, &info);
-  if (err != 0) {
-#if TD_WINDOWS
-    return OS_SOCKET_ERROR("Failed to resolve host");
-#else
-    return Status::Error(PSLICE() << "Failed to resolve host: " << gai_strerror(err));
-#endif
-  }
-  SCOPE_EXIT {
-    freeaddrinfo(info);
-  };
-
-  addrinfo *best_info = nullptr;
-  for (auto *ptr = info; ptr != nullptr; ptr = ptr->ai_next) {
-    if (ptr->ai_family == AF_INET && (!prefer_ipv6 || best_info == nullptr)) {
-      // just use first IPv4 address if there is no IPv6 and it isn't preferred
-      best_info = ptr;
-      if (!prefer_ipv6) {
-        break;
-      }
-    }
-    if (ptr->ai_family == AF_INET6 && (prefer_ipv6 || best_info == nullptr)) {
-      // or first IPv6 address if there is no IPv4 and it isn't preferred
-      best_info = ptr;
-      if (prefer_ipv6) {
-        break;
-      }
-    }
-  }
-  if (best_info == nullptr) {
-    return Status::Error("Failed to find IPv4/IPv6 address");
-  }
-  return init_sockaddr(best_info->ai_addr, narrow_cast<socklen_t>(best_info->ai_addrlen));
-}
-
-Status IPAddress::init_host_port(CSlice host_port) {
-  auto pos = host_port.rfind(':');
-  if (pos == static_cast<size_t>(-1)) {
-    return Status::Error("Can't split string into host and port");
-  }
-  return init_host_port(host_port.substr(0, pos).str(), host_port.substr(pos + 1).str());
-}
-
-Status IPAddress::init_sockaddr(sockaddr *addr) {
-  if (addr->sa_family == AF_INET6) {
-    return init_sockaddr(addr, sizeof(ipv6_addr_));
-  } else if (addr->sa_family == AF_INET) {
-    return init_sockaddr(addr, sizeof(ipv4_addr_));
-  } else {
-    return init_sockaddr(addr, 0);
-  }
-}
-Status IPAddress::init_sockaddr(sockaddr *addr, socklen_t len) {
-  if (addr->sa_family == AF_INET6) {
-    CHECK(len == sizeof(ipv6_addr_));
-    std::memcpy(&ipv6_addr_, reinterpret_cast<sockaddr_in6 *>(addr), sizeof(ipv6_addr_));
-  } else if (addr->sa_family == AF_INET) {
-    CHECK(len == sizeof(ipv4_addr_));
-    std::memcpy(&ipv4_addr_, reinterpret_cast<sockaddr_in *>(addr), sizeof(ipv4_addr_));
-  } else {
-    return Status::Error(PSLICE() << "Unknown " << tag("sa_family", addr->sa_family));
-  }
-
-  is_valid_ = true;
-  LOG(DEBUG + 10) << "Have address " << get_ip_str() << " with port " << get_port();
-  return Status::OK();
-}
-
-Status IPAddress::init_socket_address(const SocketFd &socket_fd) {
-  is_valid_ = false;
-  if (socket_fd.empty()) {
-    return Status::Error("Socket is empty");
-  }
-  auto socket = socket_fd.get_native_fd().socket();
-  socklen_t len = storage_size();
-  int ret = getsockname(socket, &sockaddr_, &len);
-  if (ret != 0) {
-    return OS_SOCKET_ERROR("Failed to get socket address");
-  }
-  is_valid_ = true;
-  return Status::OK();
-}
-
-Status IPAddress::init_peer_address(const SocketFd &socket_fd) {
-  is_valid_ = false;
-  if (socket_fd.empty()) {
-    return Status::Error("Socket is empty");
-  }
-  auto socket = socket_fd.get_native_fd().socket();
-  socklen_t len = storage_size();
-  int ret = getpeername(socket, &sockaddr_, &len);
-  if (ret != 0) {
-    return OS_SOCKET_ERROR("Failed to get peer socket address");
-  }
-  is_valid_ = true;
-  return Status::OK();
-}
-
-void IPAddress::clear_ipv6_interface() {
-  if (!is_valid() || get_address_family() != AF_INET6) {
-    return;
-  }
-
-  auto *begin = ipv6_addr_.sin6_addr.s6_addr;
-  static_assert(sizeof(ipv6_addr_.sin6_addr.s6_addr) == 16, "expected 16 bytes buffer for ipv6");
-  static_assert(sizeof(*begin) == 1, "expected array of bytes");
-  std::memset(begin + 8, 0, 8 * sizeof(*begin));
-}
-
-string IPAddress::ipv4_to_str(uint32 ipv4) {
-  ipv4 = ntohl(ipv4);
-  return ::td::get_ip_str(AF_INET, &ipv4).str();
-}
-
-string IPAddress::ipv6_to_str(Slice ipv6) {
-  CHECK(ipv6.size() == 16);
-  return ::td::get_ip_str(AF_INET6, ipv6.ubegin()).str();
-}
-
-CSlice IPAddress::get_ip_str() const {
-  if (!is_valid()) {
-    return CSlice("0.0.0.0");
-  }
-
-  switch (get_address_family()) {
-    case AF_INET6:
-      return ::td::get_ip_str(AF_INET6, &ipv6_addr_.sin6_addr);
-    case AF_INET:
-      return ::td::get_ip_str(AF_INET, &ipv4_addr_.sin_addr);
-    default:
-      UNREACHABLE();
-      return CSlice();
-  }
-}
-
-string IPAddress::get_ip_host() const {
-  if (!is_valid()) {
-    return "0.0.0.0";
-  }
-
-  switch (get_address_family()) {
-    case AF_INET6:
-      return PSTRING() << '[' << ::td::get_ip_str(AF_INET6, &ipv6_addr_.sin6_addr) << ']';
-    case AF_INET:
-      return ::td::get_ip_str(AF_INET, &ipv4_addr_.sin_addr).str();
-    default:
-      UNREACHABLE();
-      return string();
-  }
-}
-
-int IPAddress::get_port() const {
-  if (!is_valid()) {
-    return 0;
-  }
-
-  switch (get_address_family()) {
-    case AF_INET6:
-      return ntohs(ipv6_addr_.sin6_port);
-    case AF_INET:
-      return ntohs(ipv4_addr_.sin_port);
-    default:
-      UNREACHABLE();
-      return 0;
-  }
-}
-
-void IPAddress::set_port(int port) {
-  CHECK(is_valid());
-
-  switch (get_address_family()) {
-    case AF_INET6:
-      ipv6_addr_.sin6_port = htons(static_cast<uint16>(port));
-      break;
-    case AF_INET:
-      ipv4_addr_.sin_port = htons(static_cast<uint16>(port));
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-bool operator==(const IPAddress &a, const IPAddress &b) {
-  if (!a.is_valid() || !b.is_valid()) {
-    return !a.is_valid() && !b.is_valid();
-  }
-  if (a.get_address_family() != b.get_address_family()) {
-    return false;
-  }
-
-  if (a.get_address_family() == AF_INET) {
-    return a.ipv4_addr_.sin_port == b.ipv4_addr_.sin_port &&
-           std::memcmp(&a.ipv4_addr_.sin_addr, &b.ipv4_addr_.sin_addr, sizeof(a.ipv4_addr_.sin_addr)) == 0;
-  } else if (a.get_address_family() == AF_INET6) {
-    return a.ipv6_addr_.sin6_port == b.ipv6_addr_.sin6_port &&
-           std::memcmp(&a.ipv6_addr_.sin6_addr, &b.ipv6_addr_.sin6_addr, sizeof(a.ipv6_addr_.sin6_addr)) == 0;
-  }
-
-  UNREACHABLE();
-  return false;
-}
-
-bool operator<(const IPAddress &a, const IPAddress &b) {
-  if (!a.is_valid() || !b.is_valid()) {
-    return !a.is_valid() && b.is_valid();
-  }
-  if (a.get_address_family() != b.get_address_family()) {
-    return a.get_address_family() < b.get_address_family();
-  }
-
-  if (a.get_address_family() == AF_INET) {
-    if (a.ipv4_addr_.sin_port != b.ipv4_addr_.sin_port) {
-      return a.ipv4_addr_.sin_port < b.ipv4_addr_.sin_port;
-    }
-    return std::memcmp(&a.ipv4_addr_.sin_addr, &b.ipv4_addr_.sin_addr, sizeof(a.ipv4_addr_.sin_addr)) < 0;
-  } else if (a.get_address_family() == AF_INET6) {
-    if (a.ipv6_addr_.sin6_port != b.ipv6_addr_.sin6_port) {
-      return a.ipv6_addr_.sin6_port < b.ipv6_addr_.sin6_port;
-    }
-    return std::memcmp(&a.ipv6_addr_.sin6_addr, &b.ipv6_addr_.sin6_addr, sizeof(a.ipv6_addr_.sin6_addr)) < 0;
-  }
-
-  UNREACHABLE();
-  return false;
-}
-
-StringBuilder &operator<<(StringBuilder &string_builder, const IPAddress &address) {
-  if (!address.is_valid()) {
-    return string_builder << "[invalid]";
-  }
-  return string_builder << "[" << address.get_ip_host() << ":" << address.get_port() << "]";
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/IPAddress.h b/third-party/td/td/tdutils/td/utils/port/IPAddress.h
deleted file mode 100644
index bdc1a18e64..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/IPAddress.h
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-#if !TD_WINDOWS
-#include <arpa/inet.h>
-#include <netinet/in.h>
-#include <sys/socket.h>
-#endif
-
-namespace td {
-
-Result<string> idn_to_ascii(CSlice host);
-
-class SocketFd;
-
-class IPAddress {
- public:
-  IPAddress();
-
-  bool is_valid() const;
-  bool is_ipv4() const;
-  bool is_ipv6() const;
-
-  bool is_reserved() const;
-
-  int get_port() const;
-  void set_port(int port);
-
-  uint32 get_ipv4() const;
-  string get_ipv6() const;
-
-  // returns result in a static thread-local buffer, which may be overwritten by any subsequent method call
-  CSlice get_ip_str() const;
-
-  // returns IP address as a host, i.e. IPv4 or [IPv6]
-  string get_ip_host() const;
-
-  static string ipv4_to_str(uint32 ipv4);
-  static string ipv6_to_str(Slice ipv6);
-
-  IPAddress get_any_addr() const;
-
-  static Result<IPAddress> get_ip_address(CSlice host);  // host must be any IPv4 or IPv6
-  static Result<IPAddress> get_ipv4_address(CSlice host);
-  static Result<IPAddress> get_ipv6_address(CSlice host);
-
-  Status init_ipv6_port(CSlice ipv6, int port) TD_WARN_UNUSED_RESULT;
-  Status init_ipv6_as_ipv4_port(CSlice ipv4, int port) TD_WARN_UNUSED_RESULT;
-  Status init_ipv4_port(CSlice ipv4, int port) TD_WARN_UNUSED_RESULT;
-  Status init_host_port(CSlice host, int port, bool prefer_ipv6 = false) TD_WARN_UNUSED_RESULT;
-  Status init_host_port(CSlice host, CSlice port, bool prefer_ipv6 = false) TD_WARN_UNUSED_RESULT;
-  Status init_host_port(CSlice host_port) TD_WARN_UNUSED_RESULT;
-  Status init_socket_address(const SocketFd &socket_fd) TD_WARN_UNUSED_RESULT;
-  Status init_peer_address(const SocketFd &socket_fd) TD_WARN_UNUSED_RESULT;
-
-  void clear_ipv6_interface();
-
-  friend bool operator==(const IPAddress &a, const IPAddress &b);
-  friend bool operator<(const IPAddress &a, const IPAddress &b);
-
-  // for internal usage only
-  const sockaddr *get_sockaddr() const;
-  size_t get_sockaddr_len() const;
-  int get_address_family() const;
-  Status init_sockaddr(sockaddr *addr);
-  Status init_sockaddr(sockaddr *addr, socklen_t len) TD_WARN_UNUSED_RESULT;
-
- private:
-  union {
-    sockaddr sockaddr_;
-    sockaddr_in ipv4_addr_;
-    sockaddr_in6 ipv6_addr_;
-  };
-  static constexpr socklen_t storage_size() {
-    return sizeof(ipv6_addr_);
-  }
-  bool is_valid_;
-
-  void init_ipv4_any();
-  void init_ipv6_any();
-};
-
-StringBuilder &operator<<(StringBuilder &string_builder, const IPAddress &address);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/IoSlice.h b/third-party/td/td/tdutils/td/utils/port/IoSlice.h
deleted file mode 100644
index 1a222bd570..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/IoSlice.h
+++ /dev/null
@@ -1,42 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-
-#if TD_PORT_POSIX
-#include <sys/uio.h>
-#endif
-
-namespace td {
-
-#if TD_PORT_POSIX
-
-using IoSlice = struct iovec;
-
-inline IoSlice as_io_slice(Slice slice) {
-  IoSlice res;
-  res.iov_len = slice.size();
-  res.iov_base = const_cast<char *>(slice.data());
-  return res;
-}
-
-inline Slice as_slice(const IoSlice &io_slice) {
-  return Slice(static_cast<const char *>(io_slice.iov_base), io_slice.iov_len);
-}
-
-#else
-
-using IoSlice = Slice;
-
-inline IoSlice as_io_slice(Slice slice) {
-  return slice;
-}
-
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/MemoryMapping.cpp b/third-party/td/td/tdutils/td/utils/port/MemoryMapping.cpp
deleted file mode 100644
index 85cdf75f7a..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/MemoryMapping.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/MemoryMapping.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-
-// TODO:
-// windows,
-// anonymous maps,
-// huge pages?
-
-#if TD_WINDOWS
-#else
-#include <sys/mman.h>
-#include <unistd.h>
-#endif
-
-namespace td {
-
-class MemoryMapping::Impl {
- public:
-  Impl(MutableSlice data, int64 offset) : data_(data), offset_(offset) {
-  }
-  Slice as_slice() const {
-    return data_.substr(narrow_cast<size_t>(offset_));
-  }
-  MutableSlice as_mutable_slice() const {
-    return {};
-  }
-
- private:
-  MutableSlice data_;
-  int64 offset_;
-};
-
-#if !TD_WINDOWS
-static Result<int64> get_page_size() {
-  static Result<int64> page_size = []() -> Result<int64> {
-    auto page_size = sysconf(_SC_PAGESIZE);
-    if (page_size < 0) {
-      return OS_ERROR("Can't load page size from sysconf");
-    }
-    return page_size;
-  }();
-  return page_size.clone();
-}
-#endif
-
-Result<MemoryMapping> MemoryMapping::create_anonymous(const MemoryMapping::Options &options) {
-  return Status::Error("Unsupported yet");
-}
-
-Result<MemoryMapping> MemoryMapping::create_from_file(const FileFd &file_fd, const MemoryMapping::Options &options) {
-#if TD_WINDOWS
-  return Status::Error("Unsupported yet");
-#else
-  if (file_fd.empty()) {
-    return Status::Error("Can't create memory mapping: file is empty");
-  }
-  TRY_RESULT(stat, file_fd.stat());
-  auto fd = file_fd.get_native_fd().fd();
-  auto begin = options.offset;
-  if (begin < 0) {
-    return Status::Error(PSLICE() << "Can't create memory mapping: negative offset " << options.offset);
-  }
-
-  int64 end;
-  if (options.size < 0) {
-    end = stat.size_;
-  } else {
-    end = begin + stat.size_;
-  }
-
-  TRY_RESULT(page_size, get_page_size());
-  auto fixed_begin = begin / page_size * page_size;
-
-  auto data_offset = begin - fixed_begin;
-  TRY_RESULT(data_size, narrow_cast_safe<size_t>(end - fixed_begin));
-
-  void *data = mmap(nullptr, data_size, PROT_READ, MAP_PRIVATE, fd, narrow_cast<off_t>(fixed_begin));
-  if (data == MAP_FAILED) {
-    return OS_ERROR("mmap call failed");
-  }
-
-  return MemoryMapping(make_unique<Impl>(MutableSlice(static_cast<char *>(data), data_size), data_offset));
-#endif
-}
-
-MemoryMapping::MemoryMapping(MemoryMapping &&) noexcept = default;
-MemoryMapping &MemoryMapping::operator=(MemoryMapping &&) noexcept = default;
-MemoryMapping::~MemoryMapping() = default;
-
-MemoryMapping::MemoryMapping(unique_ptr<Impl> impl) : impl_(std::move(impl)) {
-}
-
-Slice MemoryMapping::as_slice() const {
-  return impl_->as_slice();
-}
-
-MutableSlice MemoryMapping::as_mutable_slice() {
-  return impl_->as_mutable_slice();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/MemoryMapping.h b/third-party/td/td/tdutils/td/utils/port/MemoryMapping.h
deleted file mode 100644
index d637d5c927..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/MemoryMapping.h
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-class MemoryMapping {
- public:
-  struct Options {
-    int64 offset{0};
-    int64 size{-1};
-
-    Options() {
-    }
-    Options &with_offset(int64 new_offset) {
-      offset = new_offset;
-      return *this;
-    }
-    Options &with_size(int64 new_size) {
-      size = new_size;
-      return *this;
-    }
-  };
-
-  static Result<MemoryMapping> create_anonymous(const Options &options = {});
-  static Result<MemoryMapping> create_from_file(const FileFd &file, const Options &options = {});
-
-  Slice as_slice() const;
-  MutableSlice as_mutable_slice();  // returns empty slice if memory is read-only
-
-  MemoryMapping(const MemoryMapping &) = delete;
-  MemoryMapping &operator=(const MemoryMapping &) = delete;
-  MemoryMapping(MemoryMapping &&other) noexcept;
-  MemoryMapping &operator=(MemoryMapping &&other) noexcept;
-  ~MemoryMapping();
-
- private:
-  class Impl;
-  unique_ptr<Impl> impl_;
-  explicit MemoryMapping(unique_ptr<Impl> impl);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/Mutex.h b/third-party/td/td/tdutils/td/utils/port/Mutex.h
deleted file mode 100644
index b4a77113ba..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/Mutex.h
+++ /dev/null
@@ -1,30 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <mutex>
-
-namespace td {
-
-class Mutex {
- public:
-  struct Guard {
-    std::unique_lock<std::mutex> guard;
-    void reset() {
-      guard.unlock();
-    }
-  };
-
-  Guard lock() {
-    return {std::unique_lock<std::mutex>(mutex_)};
-  }
-
- private:
-  std::mutex mutex_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/Poll.h b/third-party/td/td/tdutils/td/utils/port/Poll.h
deleted file mode 100644
index 50798db308..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/Poll.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/port/detail/Epoll.h"
-#include "td/utils/port/detail/KQueue.h"
-#include "td/utils/port/detail/Poll.h"
-#include "td/utils/port/detail/Select.h"
-#include "td/utils/port/detail/WineventPoll.h"
-
-namespace td {
-
-// clang-format off
-
-#if TD_POLL_EPOLL
-  using Poll = detail::Epoll;
-#elif TD_POLL_KQUEUE
-  using Poll = detail::KQueue;
-#elif TD_POLL_WINEVENT
-  using Poll = detail::WineventPoll;
-#elif TD_POLL_POLL
-  using Poll = detail::Poll;
-#elif TD_POLL_SELECT
-  using Poll = detail::Select;
-#endif
-
-// clang-format on
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/PollBase.h b/third-party/td/td/tdutils/td/utils/port/PollBase.h
deleted file mode 100644
index 5b84ea6aae..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/PollBase.h
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/PollFlags.h"
-
-namespace td {
-class PollBase {
- public:
-  PollBase() = default;
-  PollBase(const PollBase &) = delete;
-  PollBase &operator=(const PollBase &) = delete;
-  PollBase(PollBase &&) = default;
-  PollBase &operator=(PollBase &&) = default;
-  virtual ~PollBase() = default;
-  virtual void init() = 0;
-  virtual void clear() = 0;
-  virtual void subscribe(PollableFd fd, PollFlags flags) = 0;
-  virtual void unsubscribe(PollableFdRef fd) = 0;
-  virtual void unsubscribe_before_close(PollableFdRef fd) = 0;
-  virtual void run(int timeout_ms) = 0;
-};
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/PollFlags.cpp b/third-party/td/td/tdutils/td/utils/port/PollFlags.cpp
deleted file mode 100644
index 40bbffc108..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/PollFlags.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/PollFlags.h"
-
-namespace td {
-
-bool PollFlagsSet::write_flags(PollFlags flags) {
-  if (flags.empty()) {
-    return false;
-  }
-  auto old_flags = to_write_.fetch_or(flags.raw(), std::memory_order_relaxed);
-  return (flags.raw() & ~old_flags) != 0;
-}
-
-bool PollFlagsSet::write_flags_local(PollFlags flags) {
-  return flags_.add_flags(flags);
-}
-
-bool PollFlagsSet::flush() const {
-  if (to_write_.load(std::memory_order_relaxed) == 0) {
-    return false;
-  }
-  auto to_write = to_write_.exchange(0, std::memory_order_relaxed);
-  auto old_flags = flags_;
-  flags_.add_flags(PollFlags::from_raw(to_write));
-  if (flags_.can_close()) {
-    flags_.remove_flags(PollFlags::Write());
-  }
-  return flags_ != old_flags;
-}
-
-PollFlags PollFlagsSet::read_flags() const {
-  flush();
-  return flags_;
-}
-
-PollFlags PollFlagsSet::read_flags_local() const {
-  return flags_;
-}
-
-void PollFlagsSet::clear_flags(PollFlags flags) {
-  flags_.remove_flags(flags);
-}
-
-void PollFlagsSet::clear() {
-  to_write_ = 0;
-  flags_ = {};
-}
-
-StringBuilder &operator<<(StringBuilder &sb, PollFlags flags) {
-  sb << '[';
-  if (flags.can_read()) {
-    sb << 'R';
-  }
-  if (flags.can_write()) {
-    sb << 'W';
-  }
-  if (flags.can_close()) {
-    sb << 'C';
-  }
-  if (flags.has_pending_error()) {
-    sb << 'E';
-  }
-  return sb << ']';
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/PollFlags.h b/third-party/td/td/tdutils/td/utils/port/PollFlags.h
deleted file mode 100644
index ec426b258c..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/PollFlags.h
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/StringBuilder.h"
-
-#include <atomic>
-
-namespace td {
-
-class PollFlags {
- public:
-  using Raw = int32;
-  bool can_read() const {
-    return has_flags(Read());
-  }
-  bool can_write() const {
-    return has_flags(Write());
-  }
-  bool can_close() const {
-    return has_flags(Close());
-  }
-  bool has_pending_error() const {
-    return has_flags(Error());
-  }
-  void remove_flags(PollFlags flags) {
-    remove_flags(flags.raw());
-  }
-  bool add_flags(PollFlags flags) {
-    auto old_flags = flags_;
-    add_flags(flags.raw());
-    return old_flags != flags_;
-  }
-  bool has_flags(PollFlags flags) const {
-    return has_flags(flags.raw());
-  }
-
-  bool empty() const {
-    return flags_ == 0;
-  }
-  Raw raw() const {
-    return flags_;
-  }
-  static PollFlags from_raw(Raw raw) {
-    return PollFlags(raw);
-  }
-  PollFlags() = default;
-
-  bool operator==(const PollFlags &other) const {
-    return flags_ == other.flags_;
-  }
-  bool operator!=(const PollFlags &other) const {
-    return !(*this == other);
-  }
-  PollFlags operator|(const PollFlags other) const {
-    return from_raw(raw() | other.raw());
-  }
-
-  static PollFlags Write() {
-    return PollFlags(Flag::Write);
-  }
-  static PollFlags Error() {
-    return PollFlags(Flag::Error);
-  }
-  static PollFlags Close() {
-    return PollFlags(Flag::Close);
-  }
-  static PollFlags Read() {
-    return PollFlags(Flag::Read);
-  }
-  static PollFlags ReadWrite() {
-    return Read() | Write();
-  }
-
- private:
-  enum class Flag : Raw { Write = 0x001, Read = 0x002, Close = 0x004, Error = 0x008, None = 0 };
-  Raw flags_{static_cast<Raw>(Flag::None)};
-
-  explicit PollFlags(Raw raw) : flags_(raw) {
-  }
-  explicit PollFlags(Flag flag) : PollFlags(static_cast<Raw>(flag)) {
-  }
-
-  PollFlags &add_flags(Raw flags) {
-    flags_ |= flags;
-    return *this;
-  }
-  PollFlags &remove_flags(Raw flags) {
-    flags_ &= ~flags;
-    return *this;
-  }
-  bool has_flags(Raw flags) const {
-    return (flags_ & flags) == flags;
-  }
-};
-
-StringBuilder &operator<<(StringBuilder &sb, PollFlags flags);
-
-class PollFlagsSet {
- public:
-  // write flags from any thread
-  // this is the only function that should be called from other threads
-  bool write_flags(PollFlags flags);
-
-  bool write_flags_local(PollFlags flags);
-  bool flush() const;
-
-  PollFlags read_flags() const;
-  PollFlags read_flags_local() const;
-  void clear_flags(PollFlags flags);
-  void clear();
-
- private:
-  mutable std::atomic<PollFlags::Raw> to_write_{0};
-  mutable PollFlags flags_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/RwMutex.h b/third-party/td/td/tdutils/td/utils/port/RwMutex.h
deleted file mode 100644
index 9d1bc78afb..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/RwMutex.h
+++ /dev/null
@@ -1,148 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/common.h"
-
-#if TD_PORT_POSIX
-#include <pthread.h>
-#endif
-
-#include <memory>
-
-namespace td {
-
-class RwMutex {
- public:
-  RwMutex() {
-    init();
-  }
-  RwMutex(const RwMutex &) = delete;
-  RwMutex &operator=(const RwMutex &) = delete;
-  RwMutex(RwMutex &&other) noexcept {
-    init();
-    other.clear();
-  }
-  RwMutex &operator=(RwMutex &&other) noexcept {
-    other.clear();
-    return *this;
-  }
-  ~RwMutex() {
-    clear();
-  }
-
-  bool empty() const {
-    return !is_valid_;
-  }
-
-  void init();
-
-  void clear();
-
-  struct ReadUnlock {
-    void operator()(RwMutex *ptr) {
-      ptr->unlock_read_unsafe();
-    }
-  };
-  struct WriteUnlock {
-    void operator()(RwMutex *ptr) {
-      ptr->unlock_write_unsafe();
-    }
-  };
-
-  using ReadLock = std::unique_ptr<RwMutex, ReadUnlock>;
-  using WriteLock = std::unique_ptr<RwMutex, WriteUnlock>;
-
-  ReadLock lock_read() TD_WARN_UNUSED_RESULT {
-    lock_read_unsafe();
-    return ReadLock(this);
-  }
-
-  WriteLock lock_write() TD_WARN_UNUSED_RESULT {
-    lock_write_unsafe();
-    return WriteLock(this);
-  }
-
-  void lock_read_unsafe();
-
-  void lock_write_unsafe();
-
-  void unlock_read_unsafe();
-
-  void unlock_write_unsafe();
-
- private:
-  bool is_valid_ = false;
-#if TD_PORT_POSIX
-  pthread_rwlock_t mutex_;
-#elif TD_PORT_WINDOWS
-  unique_ptr<SRWLOCK> mutex_;
-#endif
-};
-
-inline void RwMutex::init() {
-  CHECK(empty());
-  is_valid_ = true;
-#if TD_PORT_POSIX
-  pthread_rwlock_init(&mutex_, nullptr);
-#elif TD_PORT_WINDOWS
-  mutex_ = make_unique<SRWLOCK>();
-  InitializeSRWLock(mutex_.get());
-#endif
-}
-
-inline void RwMutex::clear() {
-  if (is_valid_) {
-#if TD_PORT_POSIX
-    pthread_rwlock_destroy(&mutex_);
-#elif TD_PORT_WINDOWS
-    mutex_.release();
-#endif
-    is_valid_ = false;
-  }
-}
-
-inline void RwMutex::lock_read_unsafe() {
-  CHECK(!empty());
-// TODO error handling
-#if TD_PORT_POSIX
-  pthread_rwlock_rdlock(&mutex_);
-#elif TD_PORT_WINDOWS
-  AcquireSRWLockShared(mutex_.get());
-#endif
-}
-
-inline void RwMutex::lock_write_unsafe() {
-  CHECK(!empty());
-#if TD_PORT_POSIX
-  pthread_rwlock_wrlock(&mutex_);
-#elif TD_PORT_WINDOWS
-  AcquireSRWLockExclusive(mutex_.get());
-#endif
-}
-
-inline void RwMutex::unlock_read_unsafe() {
-  CHECK(!empty());
-#if TD_PORT_POSIX
-  pthread_rwlock_unlock(&mutex_);
-#elif TD_PORT_WINDOWS
-  ReleaseSRWLockShared(mutex_.get());
-#endif
-}
-
-inline void RwMutex::unlock_write_unsafe() {
-  CHECK(!empty());
-#if TD_PORT_POSIX
-  pthread_rwlock_unlock(&mutex_);
-#elif TD_PORT_WINDOWS
-  ReleaseSRWLockExclusive(mutex_.get());
-#endif
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/ServerSocketFd.cpp b/third-party/td/td/tdutils/td/utils/port/ServerSocketFd.cpp
deleted file mode 100644
index 440a1c8ef3..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/ServerSocketFd.cpp
+++ /dev/null
@@ -1,380 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/ServerSocketFd.h"
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/SliceBuilder.h"
-
-#if TD_PORT_POSIX
-#include <cerrno>
-
-#include <arpa/inet.h>
-#include <fcntl.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-#endif
-
-#if TD_PORT_WINDOWS
-#include "td/utils/port/detail/Iocp.h"
-#include "td/utils/port/Mutex.h"
-#include "td/utils/VectorQueue.h"
-#endif
-
-#include <atomic>
-#include <cstring>
-
-namespace td {
-
-namespace detail {
-#if TD_PORT_WINDOWS
-class ServerSocketFdImpl final : private Iocp::Callback {
- public:
-  ServerSocketFdImpl(NativeFd fd, int socket_family) : info_(std::move(fd)), socket_family_(socket_family) {
-    VLOG(fd) << get_native_fd() << " create ServerSocketFd";
-    Iocp::get()->subscribe(get_native_fd(), this);
-    notify_iocp_read();
-  }
-  void close() {
-    notify_iocp_close();
-  }
-  PollableFdInfo &get_poll_info() {
-    return info_;
-  }
-  const PollableFdInfo &get_poll_info() const {
-    return info_;
-  }
-
-  const NativeFd &get_native_fd() const {
-    return info_.native_fd();
-  }
-
-  Result<SocketFd> accept() {
-    auto lock = lock_.lock();
-    if (accepted_.empty()) {
-      get_poll_info().clear_flags(PollFlags::Read());
-      return Status::Error(-1, "Operation would block");
-    }
-    return accepted_.pop();
-  }
-
-  Status get_pending_error() {
-    Status res;
-    {
-      auto lock = lock_.lock();
-      if (!pending_errors_.empty()) {
-        res = pending_errors_.pop();
-      }
-      if (res.is_ok()) {
-        get_poll_info().clear_flags(PollFlags::Error());
-      }
-    }
-    return res;
-  }
-
- private:
-  PollableFdInfo info_;
-
-  Mutex lock_;
-  VectorQueue<SocketFd> accepted_;
-  VectorQueue<Status> pending_errors_;
-  static constexpr size_t MAX_ADDR_SIZE = sizeof(sockaddr_in6) + 16;
-  char addr_buf_[MAX_ADDR_SIZE * 2];
-
-  bool close_flag_{false};
-  std::atomic<int> refcnt_{1};
-  bool is_read_active_{false};
-  WSAOVERLAPPED read_overlapped_;
-
-  char close_overlapped_;
-
-  NativeFd accept_socket_;
-  int socket_family_;
-
-  void on_close() {
-    close_flag_ = true;
-    info_.set_native_fd({});
-  }
-  void on_read() {
-    VLOG(fd) << get_native_fd() << " on_read";
-    if (is_read_active_) {
-      is_read_active_ = false;
-      auto r_socket = [&]() -> Result<SocketFd> {
-        auto from = get_native_fd().socket();
-        auto status = setsockopt(accept_socket_.socket(), SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT,
-                                 reinterpret_cast<const char *>(&from), sizeof(from));
-        if (status != 0) {
-          return OS_SOCKET_ERROR("Failed to set SO_UPDATE_ACCEPT_CONTEXT options");
-        }
-        return SocketFd::from_native_fd(std::move(accept_socket_));
-      }();
-      VLOG(fd) << get_native_fd() << " finish accept";
-      if (r_socket.is_error()) {
-        return on_error(r_socket.move_as_error());
-      }
-      {
-        auto lock = lock_.lock();
-        accepted_.push(r_socket.move_as_ok());
-      }
-      get_poll_info().add_flags_from_poll(PollFlags::Read());
-    }
-    loop_read();
-  }
-  void loop_read() {
-    CHECK(!is_read_active_);
-    accept_socket_ = NativeFd(socket(socket_family_, SOCK_STREAM, 0));
-    std::memset(&read_overlapped_, 0, sizeof(read_overlapped_));
-    VLOG(fd) << get_native_fd() << " start accept";
-    BOOL status = AcceptEx(get_native_fd().socket(), accept_socket_.socket(), addr_buf_, 0, MAX_ADDR_SIZE,
-                           MAX_ADDR_SIZE, nullptr, &read_overlapped_);
-    if (status == TRUE || check_status("Failed to accept connection")) {
-      inc_refcnt();
-      is_read_active_ = true;
-    }
-  }
-  bool check_status(Slice message) {
-    auto last_error = WSAGetLastError();
-    if (last_error == ERROR_IO_PENDING) {
-      return true;
-    }
-    on_error(OS_SOCKET_ERROR(message));
-    return false;
-  }
-  bool dec_refcnt() {
-    if (--refcnt_ == 0) {
-      delete this;
-      return true;
-    }
-    return false;
-  }
-  void inc_refcnt() {
-    CHECK(refcnt_ != 0);
-    refcnt_++;
-  }
-
-  void on_error(Status status) {
-    {
-      auto lock = lock_.lock();
-      pending_errors_.push(std::move(status));
-    }
-    get_poll_info().add_flags_from_poll(PollFlags::Error());
-  }
-
-  void on_iocp(Result<size_t> r_size, WSAOVERLAPPED *overlapped) final {
-    // called from other thread
-    if (dec_refcnt() || close_flag_) {
-      VLOG(fd) << "Ignore IOCP (server socket is closing)";
-      return;
-    }
-    if (r_size.is_error()) {
-      return on_error(get_socket_pending_error(get_native_fd(), overlapped, r_size.move_as_error()));
-    }
-
-    if (overlapped == nullptr) {
-      return on_read();
-    }
-    if (overlapped == &read_overlapped_) {
-      return on_read();
-    }
-
-    if (overlapped == reinterpret_cast<WSAOVERLAPPED *>(&close_overlapped_)) {
-      return on_close();
-    }
-    UNREACHABLE();
-  }
-  void notify_iocp_read() {
-    VLOG(fd) << get_native_fd() << " notify_read";
-    inc_refcnt();
-    Iocp::get()->post(0, this, nullptr);
-  }
-  void notify_iocp_close() {
-    VLOG(fd) << get_native_fd() << " notify_close";
-    Iocp::get()->post(0, this, reinterpret_cast<WSAOVERLAPPED *>(&close_overlapped_));
-  }
-};
-void ServerSocketFdImplDeleter::operator()(ServerSocketFdImpl *impl) {
-  impl->close();
-}
-#elif TD_PORT_POSIX
-class ServerSocketFdImpl {
- public:
-  explicit ServerSocketFdImpl(NativeFd fd) : info_(std::move(fd)) {
-  }
-  PollableFdInfo &get_poll_info() {
-    return info_;
-  }
-  const PollableFdInfo &get_poll_info() const {
-    return info_;
-  }
-
-  const NativeFd &get_native_fd() const {
-    return info_.native_fd();
-  }
-  Result<SocketFd> accept() {
-    sockaddr_storage addr;
-    socklen_t addr_len = sizeof(addr);
-    int native_fd = get_native_fd().socket();
-    int r_fd = detail::skip_eintr([&] { return ::accept(native_fd, reinterpret_cast<sockaddr *>(&addr), &addr_len); });
-    auto accept_errno = errno;
-    if (r_fd >= 0) {
-      return SocketFd::from_native_fd(NativeFd(r_fd));
-    }
-
-    if (accept_errno == EAGAIN
-#if EAGAIN != EWOULDBLOCK
-        || accept_errno == EWOULDBLOCK
-#endif
-    ) {
-      get_poll_info().clear_flags(PollFlags::Read());
-      return Status::Error(-1, "Operation would block");
-    }
-
-    auto error = Status::PosixError(accept_errno, PSLICE() << "Accept from " << get_native_fd() << " has failed");
-    switch (accept_errno) {
-      case EBADF:
-      case EFAULT:
-      case EINVAL:
-      case ENOTSOCK:
-      case EOPNOTSUPP:
-        LOG(FATAL) << error;
-        UNREACHABLE();
-        break;
-      default:
-        LOG(ERROR) << error;
-      // fallthrough
-      case EMFILE:
-      case ENFILE:
-      case ECONNABORTED:  //???
-        get_poll_info().clear_flags(PollFlags::Read());
-        get_poll_info().add_flags(PollFlags::Close());
-        return std::move(error);
-    }
-  }
-
-  Status get_pending_error() {
-    if (!get_poll_info().get_flags_local().has_pending_error()) {
-      return Status::OK();
-    }
-    TRY_STATUS(detail::get_socket_pending_error(get_native_fd()));
-    get_poll_info().clear_flags(PollFlags::Error());
-    return Status::OK();
-  }
-
- private:
-  PollableFdInfo info_;
-};
-void ServerSocketFdImplDeleter::operator()(ServerSocketFdImpl *impl) {
-  delete impl;
-}
-#endif
-}  // namespace detail
-
-ServerSocketFd::ServerSocketFd() = default;
-ServerSocketFd::ServerSocketFd(ServerSocketFd &&) noexcept = default;
-ServerSocketFd &ServerSocketFd::operator=(ServerSocketFd &&) noexcept = default;
-ServerSocketFd::~ServerSocketFd() = default;
-ServerSocketFd::ServerSocketFd(unique_ptr<detail::ServerSocketFdImpl> impl) : impl_(impl.release()) {
-}
-PollableFdInfo &ServerSocketFd::get_poll_info() {
-  return impl_->get_poll_info();
-}
-
-const PollableFdInfo &ServerSocketFd::get_poll_info() const {
-  return impl_->get_poll_info();
-}
-
-Status ServerSocketFd::get_pending_error() {
-  return impl_->get_pending_error();
-}
-
-const NativeFd &ServerSocketFd::get_native_fd() const {
-  return impl_->get_native_fd();
-}
-
-Result<SocketFd> ServerSocketFd::accept() {
-  return impl_->accept();
-}
-
-void ServerSocketFd::close() {
-  impl_.reset();
-}
-
-bool ServerSocketFd::empty() const {
-  return !impl_;
-}
-
-Result<ServerSocketFd> ServerSocketFd::open(int32 port, CSlice addr) {
-  if (port <= 0 || port >= (1 << 16)) {
-    return Status::Error(PSLICE() << "Invalid server port " << port << " specified");
-  }
-
-  TRY_RESULT(address, IPAddress::get_ip_address(addr));
-  address.set_port(port);
-
-  NativeFd fd{socket(address.get_address_family(), SOCK_STREAM, 0)};
-  if (!fd) {
-    return OS_SOCKET_ERROR("Failed to create a socket");
-  }
-
-  TRY_STATUS(fd.set_is_blocking_unsafe(false));
-  auto sock = fd.socket();
-
-  linger ling = {0, 0};
-#if TD_PORT_POSIX
-  int flags = 1;
-#ifdef SO_REUSEPORT
-  setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast<const char *>(&flags), sizeof(flags));
-#endif
-#elif TD_PORT_WINDOWS
-  BOOL flags = FALSE;
-  if (address.is_ipv6()) {
-    setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<const char *>(&flags), sizeof(flags));
-  }
-  flags = TRUE;
-#endif
-  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<const char *>(&flags), sizeof(flags));
-  setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, reinterpret_cast<const char *>(&flags), sizeof(flags));
-  setsockopt(sock, SOL_SOCKET, SO_LINGER, reinterpret_cast<const char *>(&ling), sizeof(ling));
-  setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<const char *>(&flags), sizeof(flags));
-
-  int e_bind = bind(sock, address.get_sockaddr(), static_cast<socklen_t>(address.get_sockaddr_len()));
-  if (e_bind != 0) {
-    return OS_SOCKET_ERROR("Failed to bind a socket");
-  }
-
-  // TODO: magic constant
-  int e_listen = listen(sock, 8192);
-  if (e_listen != 0) {
-    return OS_SOCKET_ERROR("Failed to listen on a socket");
-  }
-
-#if TD_PORT_POSIX
-  auto impl = make_unique<detail::ServerSocketFdImpl>(std::move(fd));
-#elif TD_PORT_WINDOWS
-  auto impl = make_unique<detail::ServerSocketFdImpl>(std::move(fd), address.get_address_family());
-#endif
-
-  return ServerSocketFd(std::move(impl));
-}
-
-Result<uint32> ServerSocketFd::maximize_snd_buffer(uint32 max_size) {
-  return get_native_fd().maximize_snd_buffer(max_size);
-}
-
-Result<uint32> ServerSocketFd::maximize_rcv_buffer(uint32 max_size) {
-  return get_native_fd().maximize_rcv_buffer(max_size);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/ServerSocketFd.h b/third-party/td/td/tdutils/td/utils/port/ServerSocketFd.h
deleted file mode 100644
index 14d4f3b302..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/ServerSocketFd.h
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/SocketFd.h"
-
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-namespace td {
-namespace detail {
-class ServerSocketFdImpl;
-class ServerSocketFdImplDeleter {
- public:
-  void operator()(ServerSocketFdImpl *impl);
-};
-}  // namespace detail
-
-class ServerSocketFd {
- public:
-  ServerSocketFd();
-  ServerSocketFd(const ServerSocketFd &) = delete;
-  ServerSocketFd &operator=(const ServerSocketFd &) = delete;
-  ServerSocketFd(ServerSocketFd &&) noexcept;
-  ServerSocketFd &operator=(ServerSocketFd &&) noexcept;
-  ~ServerSocketFd();
-
-  Result<uint32> maximize_snd_buffer(uint32 max_size = 0);
-  Result<uint32> maximize_rcv_buffer(uint32 max_size = 0);
-
-  static Result<ServerSocketFd> open(int32 port, CSlice addr = CSlice("0.0.0.0")) TD_WARN_UNUSED_RESULT;
-
-  PollableFdInfo &get_poll_info();
-  const PollableFdInfo &get_poll_info() const;
-
-  Status get_pending_error() TD_WARN_UNUSED_RESULT;
-
-  Result<SocketFd> accept() TD_WARN_UNUSED_RESULT;
-
-  void close();
-  bool empty() const;
-
-  const NativeFd &get_native_fd() const;
-
- private:
-  std::unique_ptr<detail::ServerSocketFdImpl, detail::ServerSocketFdImplDeleter> impl_;
-  explicit ServerSocketFd(unique_ptr<detail::ServerSocketFdImpl> impl);
-};
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/SocketFd.cpp b/third-party/td/td/tdutils/td/utils/port/SocketFd.cpp
deleted file mode 100644
index 364e123c49..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/SocketFd.cpp
+++ /dev/null
@@ -1,728 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/SocketFd.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/SliceBuilder.h"
-
-#if TD_PORT_WINDOWS
-#include "td/utils/buffer.h"
-#include "td/utils/port/detail/Iocp.h"
-#include "td/utils/port/Mutex.h"
-#include "td/utils/VectorQueue.h"
-
-#include <limits>
-#endif
-
-#if TD_PORT_POSIX
-#include <cerrno>
-
-#include <arpa/inet.h>
-#include <fcntl.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-#endif
-
-#include <atomic>
-#include <cstring>
-
-namespace td {
-namespace detail {
-#if TD_PORT_WINDOWS
-class SocketFdImpl final : private Iocp::Callback {
- public:
-  explicit SocketFdImpl(NativeFd native_fd) : info_(std::move(native_fd)) {
-    VLOG(fd) << get_native_fd() << " create from native_fd";
-    get_poll_info().add_flags(PollFlags::Write());
-    Iocp::get()->subscribe(get_native_fd(), this);
-    is_read_active_ = true;
-    notify_iocp_connected();
-  }
-
-  SocketFdImpl(NativeFd native_fd, const IPAddress &addr) : info_(std::move(native_fd)) {
-    VLOG(fd) << get_native_fd() << " create from native_fd and connect";
-    get_poll_info().add_flags(PollFlags::Write());
-    Iocp::get()->subscribe(get_native_fd(), this);
-    LPFN_CONNECTEX ConnectExPtr = nullptr;
-    GUID guid = WSAID_CONNECTEX;
-    DWORD numBytes;
-    auto error =
-        ::WSAIoctl(get_native_fd().socket(), SIO_GET_EXTENSION_FUNCTION_POINTER, static_cast<void *>(&guid),
-                   sizeof(guid), static_cast<void *>(&ConnectExPtr), sizeof(ConnectExPtr), &numBytes, nullptr, nullptr);
-    if (error) {
-      on_error(OS_SOCKET_ERROR("WSAIoctl failed"));
-      return;
-    }
-    std::memset(&read_overlapped_, 0, sizeof(read_overlapped_));
-    inc_refcnt();
-    is_read_active_ = true;
-    auto status = ConnectExPtr(get_native_fd().socket(), addr.get_sockaddr(), narrow_cast<int>(addr.get_sockaddr_len()),
-                               nullptr, 0, nullptr, &read_overlapped_);
-
-    if (status == TRUE || !check_status("Failed to connect")) {
-      is_read_active_ = false;
-      dec_refcnt();
-    }
-  }
-
-  void close() {
-    if (!is_write_waiting_ && is_connected_) {
-      VLOG(fd) << get_native_fd() << " will close after ongoing write";
-      auto lock = lock_.lock();
-      if (!is_write_waiting_) {
-        need_close_after_write_ = true;
-        return;
-      }
-    }
-    notify_iocp_close();
-  }
-
-  PollableFdInfo &get_poll_info() {
-    return info_;
-  }
-  const PollableFdInfo &get_poll_info() const {
-    return info_;
-  }
-
-  const NativeFd &get_native_fd() const {
-    return info_.native_fd();
-  }
-
-  Result<size_t> write(Slice data) {
-    // LOG(ERROR) << "Write: " << format::as_hex_dump<0>(data);
-    output_writer_.append(data);
-    return write_finish(data.size());
-  }
-
-  Result<size_t> writev(Span<IoSlice> slices) {
-    size_t total_size = 0;
-    for (auto io_slice : slices) {
-      auto size = as_slice(io_slice).size();
-      CHECK(size <= std::numeric_limits<size_t>::max() - total_size);
-      total_size += size;
-    }
-
-    auto left_size = total_size;
-    for (auto io_slice : slices) {
-      auto slice = as_slice(io_slice);
-      output_writer_.append(slice, left_size);
-      left_size -= slice.size();
-    }
-
-    return write_finish(total_size);
-  }
-
-  Result<size_t> write_finish(size_t total_size) {
-    if (is_write_waiting_) {
-      auto lock = lock_.lock();
-      is_write_waiting_ = false;
-      lock.reset();
-      notify_iocp_write();
-    }
-    return total_size;
-  }
-
-  Result<size_t> read(MutableSlice slice) {
-    if (get_poll_info().get_flags_local().has_pending_error()) {
-      TRY_STATUS(get_pending_error());
-    }
-    input_reader_.sync_with_writer();
-    auto res = input_reader_.advance(td::min(slice.size(), input_reader_.size()), slice);
-    if (res == 0) {
-      get_poll_info().clear_flags(PollFlags::Read());
-    } else {
-      // LOG(ERROR) << "Read: " << format::as_hex_dump<0>(Slice(slice.substr(0, res)));
-    }
-    return res;
-  }
-
-  Status get_pending_error() {
-    Status res;
-    {
-      auto lock = lock_.lock();
-      if (!pending_errors_.empty()) {
-        res = pending_errors_.pop();
-      }
-      if (res.is_ok()) {
-        get_poll_info().clear_flags(PollFlags::Error());
-      }
-    }
-    return res;
-  }
-
- private:
-  PollableFdInfo info_;
-  Mutex lock_;
-
-  std::atomic<int> refcnt_{1};
-  bool close_flag_{false};
-  bool need_close_after_write_{false};
-
-  std::atomic<bool> is_connected_{false};
-  bool is_read_active_{false};
-  ChainBufferWriter input_writer_;
-  ChainBufferReader input_reader_ = input_writer_.extract_reader();
-  WSAOVERLAPPED read_overlapped_;
-  VectorQueue<Status> pending_errors_;
-
-  bool is_write_active_{false};
-  std::atomic<bool> is_write_waiting_{false};
-  ChainBufferWriter output_writer_;
-  ChainBufferReader output_reader_ = output_writer_.extract_reader();
-  WSAOVERLAPPED write_overlapped_;
-
-  char close_overlapped_;
-
-  bool check_status(Slice message) {
-    auto last_error = WSAGetLastError();
-    if (last_error == ERROR_IO_PENDING) {
-      return true;
-    }
-    on_error(OS_SOCKET_ERROR(message));
-    return false;
-  }
-
-  void loop_read() {
-    CHECK(is_connected_);
-    CHECK(!is_read_active_);
-    if (close_flag_ || need_close_after_write_) {
-      return;
-    }
-    std::memset(&read_overlapped_, 0, sizeof(read_overlapped_));
-    auto dest = input_writer_.prepare_append();
-    WSABUF buf;
-    buf.len = narrow_cast<ULONG>(dest.size());
-    buf.buf = dest.data();
-    DWORD flags = 0;
-    int status = WSARecv(get_native_fd().socket(), &buf, 1, nullptr, &flags, &read_overlapped_, nullptr);
-    if (status == 0 || check_status("Failed to read from connection")) {
-      inc_refcnt();
-      is_read_active_ = true;
-    }
-  }
-
-  void loop_write() {
-    CHECK(is_connected_);
-    CHECK(!is_write_active_);
-
-    output_reader_.sync_with_writer();
-    auto to_write = output_reader_.prepare_read();
-    if (to_write.empty()) {
-      auto lock = lock_.lock();
-      output_reader_.sync_with_writer();
-      to_write = output_reader_.prepare_read();
-      if (to_write.empty()) {
-        is_write_waiting_ = true;
-        if (need_close_after_write_) {
-          notify_iocp_close();
-        }
-        return;
-      }
-    }
-    if (to_write.empty()) {
-      return;
-    }
-    std::memset(&write_overlapped_, 0, sizeof(write_overlapped_));
-    constexpr size_t BUF_SIZE = 20;
-    WSABUF buf[BUF_SIZE];
-    auto it = output_reader_.clone();
-    size_t buf_i;
-    for (buf_i = 0; buf_i < BUF_SIZE; buf_i++) {
-      auto src = it.prepare_read();
-      if (src.empty()) {
-        break;
-      }
-      buf[buf_i].len = narrow_cast<ULONG>(src.size());
-      buf[buf_i].buf = const_cast<CHAR *>(src.data());
-      it.confirm_read(src.size());
-    }
-    int status =
-        WSASend(get_native_fd().socket(), buf, narrow_cast<DWORD>(buf_i), nullptr, 0, &write_overlapped_, nullptr);
-    if (status == 0 || check_status("Failed to write to connection")) {
-      inc_refcnt();
-      is_write_active_ = true;
-    }
-  }
-
-  void on_iocp(Result<size_t> r_size, WSAOVERLAPPED *overlapped) final {
-    // called from other thread
-    if (dec_refcnt() || close_flag_) {
-      VLOG(fd) << "Ignore IOCP (socket is closing)";
-      return;
-    }
-    if (r_size.is_error()) {
-      return on_error(get_socket_pending_error(get_native_fd(), overlapped, r_size.move_as_error()));
-    }
-
-    if (!is_connected_ && overlapped == &read_overlapped_) {
-      return on_connected();
-    }
-
-    auto size = r_size.move_as_ok();
-    if (overlapped == &write_overlapped_) {
-      return on_write(size);
-    }
-    if (overlapped == nullptr) {
-      CHECK(size == 0);
-      return on_write(size);
-    }
-
-    if (overlapped == &read_overlapped_) {
-      return on_read(size);
-    }
-    if (overlapped == reinterpret_cast<WSAOVERLAPPED *>(&close_overlapped_)) {
-      return on_close();
-    }
-    LOG(ERROR) << this << ' ' << overlapped << ' ' << &read_overlapped_ << ' ' << &write_overlapped_ << ' '
-               << reinterpret_cast<WSAOVERLAPPED *>(&close_overlapped_) << ' ' << size;
-    LOG(FATAL) << get_native_fd() << ' ' << info_.get_flags_local() << ' ' << refcnt_.load() << ' ' << close_flag_
-               << ' ' << need_close_after_write_ << ' ' << is_connected_ << ' ' << is_read_active_ << ' '
-               << is_write_active_ << ' ' << is_write_waiting_.load() << ' ' << input_reader_.size() << ' '
-               << output_reader_.size();
-  }
-
-  void on_error(Status status) {
-    VLOG(fd) << get_native_fd() << " on error " << status;
-    {
-      auto lock = lock_.lock();
-      pending_errors_.push(std::move(status));
-    }
-    get_poll_info().add_flags_from_poll(PollFlags::Error());
-  }
-
-  void on_connected() {
-    VLOG(fd) << get_native_fd() << " on connected";
-    CHECK(!is_connected_);
-    CHECK(is_read_active_);
-    is_connected_ = true;
-    is_read_active_ = false;
-    loop_read();
-    loop_write();
-  }
-
-  void on_read(size_t size) {
-    VLOG(fd) << get_native_fd() << " on read " << size;
-    CHECK(is_read_active_);
-    is_read_active_ = false;
-    if (size == 0) {
-      get_poll_info().add_flags_from_poll(PollFlags::Close());
-      return;
-    }
-    input_writer_.confirm_append(size);
-    get_poll_info().add_flags_from_poll(PollFlags::Read());
-    loop_read();
-  }
-
-  void on_write(size_t size) {
-    VLOG(fd) << get_native_fd() << " on write " << size;
-    if (size == 0) {
-      if (is_write_active_) {
-        return;
-      }
-      is_write_active_ = true;
-    }
-    CHECK(is_write_active_);
-    is_write_active_ = false;
-    output_reader_.advance(size);
-    loop_write();
-  }
-
-  void on_close() {
-    VLOG(fd) << get_native_fd() << " on close";
-    close_flag_ = true;
-    info_.set_native_fd({});
-  }
-  bool dec_refcnt() {
-    VLOG(fd) << get_native_fd() << " dec_refcnt from " << refcnt_;
-    if (--refcnt_ == 0) {
-      delete this;
-      return true;
-    }
-    return false;
-  }
-  void inc_refcnt() {
-    CHECK(refcnt_ != 0);
-    refcnt_++;
-    VLOG(fd) << get_native_fd() << " inc_refcnt to " << refcnt_;
-  }
-
-  void notify_iocp_write() {
-    inc_refcnt();
-    Iocp::get()->post(0, this, nullptr);
-  }
-  void notify_iocp_close() {
-    Iocp::get()->post(0, this, reinterpret_cast<WSAOVERLAPPED *>(&close_overlapped_));
-  }
-  void notify_iocp_connected() {
-    inc_refcnt();
-    Iocp::get()->post(0, this, &read_overlapped_);
-  }
-};
-
-void SocketFdImplDeleter::operator()(SocketFdImpl *impl) {
-  impl->close();
-}
-
-class InitWSA {
- public:
-  InitWSA() {
-    /* Use the MAKEWORD(lowbyte, highbyte) macro declared in Windef.h */
-    WORD wVersionRequested = MAKEWORD(2, 2);
-    WSADATA wsaData;
-    if (WSAStartup(wVersionRequested, &wsaData) != 0) {
-      auto error = OS_SOCKET_ERROR("Failed to init WSA");
-      LOG(FATAL) << error;
-    }
-  }
-};
-
-static InitWSA init_wsa;
-
-#else
-class SocketFdImpl {
- public:
-  PollableFdInfo info_;
-  explicit SocketFdImpl(NativeFd fd) : info_(std::move(fd)) {
-  }
-  PollableFdInfo &get_poll_info() {
-    return info_;
-  }
-  const PollableFdInfo &get_poll_info() const {
-    return info_;
-  }
-
-  const NativeFd &get_native_fd() const {
-    return info_.native_fd();
-  }
-
-  Result<size_t> writev(Span<IoSlice> slices) {
-    int native_fd = get_native_fd().socket();
-    TRY_RESULT(slices_size, narrow_cast_safe<int>(slices.size()));
-    auto write_res = detail::skip_eintr([&] {
-    // sendmsg can erroneously return 2^32 - 1 on Android 5.1 and Android 6.0, so it must not be used there
-#if defined(MSG_NOSIGNAL) && !TD_ANDROID
-      msghdr msg;
-      std::memset(&msg, 0, sizeof(msg));
-      msg.msg_iov = const_cast<iovec *>(slices.begin());
-      msg.msg_iovlen = slices_size;
-      return sendmsg(native_fd, &msg, MSG_NOSIGNAL);
-#else
-      return ::writev(native_fd, slices.begin(), slices_size);
-#endif
-    });
-    if (write_res >= 0) {
-      auto result = narrow_cast<size_t>(write_res);
-      auto left = result;
-      for (const auto &slice : slices) {
-        if (left <= slice.iov_len) {
-          return result;
-        }
-        left -= slice.iov_len;
-      }
-      LOG(FATAL) << "Receive " << write_res << " as writev response, but tried to write only " << result - left
-                 << " bytes";
-    }
-    return write_finish();
-  }
-
-  Result<size_t> write(Slice slice) {
-    int native_fd = get_native_fd().socket();
-    auto write_res = detail::skip_eintr([&] {
-      return
-#ifdef MSG_NOSIGNAL
-          send(native_fd, slice.begin(), slice.size(), MSG_NOSIGNAL);
-#else
-          ::write(native_fd, slice.begin(), slice.size());
-#endif
-    });
-    if (write_res >= 0) {
-      auto result = narrow_cast<size_t>(write_res);
-      LOG_CHECK(result <= slice.size()) << "Receive " << write_res << " as write response, but tried to write only "
-                                        << slice.size() << " bytes";
-      return result;
-    }
-    return write_finish();
-  }
-
-  Result<size_t> write_finish() {
-    auto write_errno = errno;
-    if (write_errno == EAGAIN
-#if EAGAIN != EWOULDBLOCK
-        || write_errno == EWOULDBLOCK
-#endif
-    ) {
-      get_poll_info().clear_flags(PollFlags::Write());
-      return 0;
-    }
-
-    auto error = Status::PosixError(write_errno, PSLICE() << "Write to " << get_native_fd() << " has failed");
-    switch (write_errno) {
-      case EBADF:
-      case ENXIO:
-      case EFAULT:
-      case EINVAL:
-        LOG(FATAL) << error;
-        UNREACHABLE();
-      default:
-        LOG(WARNING) << error;
-      // fallthrough
-      case ECONNRESET:
-      case EDQUOT:
-      case EFBIG:
-      case EIO:
-      case ENETDOWN:
-      case ENETUNREACH:
-      case ENOSPC:
-      case EPIPE:
-        get_poll_info().clear_flags(PollFlags::Write());
-        get_poll_info().add_flags(PollFlags::Close());
-        return std::move(error);
-    }
-  }
-  Result<size_t> read(MutableSlice slice) {
-    if (get_poll_info().get_flags_local().has_pending_error()) {
-      TRY_STATUS(get_pending_error());
-    }
-    int native_fd = get_native_fd().socket();
-    CHECK(!slice.empty());
-    auto read_res = detail::skip_eintr([&] { return ::read(native_fd, slice.begin(), slice.size()); });
-    auto read_errno = errno;
-    if (read_res >= 0) {
-      if (read_res == 0) {
-        errno = 0;
-        get_poll_info().clear_flags(PollFlags::Read());
-        get_poll_info().add_flags(PollFlags::Close());
-      }
-      auto result = narrow_cast<size_t>(read_res);
-      CHECK(result <= slice.size());
-      return result;
-    }
-    if (read_errno == EAGAIN
-#if EAGAIN != EWOULDBLOCK
-        || read_errno == EWOULDBLOCK
-#endif
-    ) {
-      get_poll_info().clear_flags(PollFlags::Read());
-      return 0;
-    }
-    auto error = Status::PosixError(read_errno, PSLICE() << "Read from " << get_native_fd() << " has failed");
-    switch (read_errno) {
-      case EISDIR:
-      case EBADF:
-      case ENXIO:
-      case EINVAL:
-        LOG(FATAL) << error;
-        UNREACHABLE();
-      case EFAULT:  // happens on various Android 13 phones manufactured by BBK Electronics
-      default:
-        LOG(WARNING) << error;
-      // fallthrough
-      case ENOTCONN:
-      case EIO:
-      case ENOBUFS:
-      case ENOMEM:
-      case ECONNRESET:
-      case ETIMEDOUT:
-        get_poll_info().clear_flags(PollFlags::Read());
-        get_poll_info().add_flags(PollFlags::Close());
-        return std::move(error);
-    }
-  }
-  Status get_pending_error() {
-    if (!get_poll_info().get_flags_local().has_pending_error()) {
-      return Status::OK();
-    }
-    TRY_STATUS(detail::get_socket_pending_error(get_native_fd()));
-    get_poll_info().clear_flags(PollFlags::Error());
-    return Status::OK();
-  }
-};
-
-void SocketFdImplDeleter::operator()(SocketFdImpl *impl) {
-  delete impl;
-}
-
-#endif
-
-#if TD_PORT_POSIX
-Status get_socket_pending_error(const NativeFd &fd) {
-  int error = 0;
-  socklen_t errlen = sizeof(error);
-  if (getsockopt(fd.socket(), SOL_SOCKET, SO_ERROR, static_cast<void *>(&error), &errlen) == 0) {
-    if (error == 0) {
-      return Status::OK();
-    }
-    return Status::PosixError(error, PSLICE() << "Error on " << fd);
-  }
-  auto status = OS_SOCKET_ERROR(PSLICE() << "Can't load error on socket " << fd);
-  LOG(INFO) << "Can't load pending socket error: " << status;
-  return status;
-}
-#elif TD_PORT_WINDOWS
-Status get_socket_pending_error(const NativeFd &fd, WSAOVERLAPPED *overlapped, Status iocp_error) {
-  // We need to call WSAGetOverlappedResult() just so WSAGetLastError() will return the correct error. See
-  // https://stackoverflow.com/questions/28925003/calling-wsagetlasterror-from-an-iocp-thread-return-incorrect-result
-  DWORD num_bytes = 0;
-  DWORD flags = 0;
-  BOOL success = WSAGetOverlappedResult(fd.socket(), overlapped, &num_bytes, false, &flags);
-  if (success) {
-    LOG(ERROR) << "WSAGetOverlappedResult succeeded after " << iocp_error;
-    return iocp_error;
-  }
-  return OS_SOCKET_ERROR(PSLICE() << "Error on " << fd);
-}
-#endif
-
-Status init_socket_options(NativeFd &native_fd) {
-  TRY_STATUS(native_fd.set_is_blocking_unsafe(false));
-
-  auto sock = native_fd.socket();
-#if TD_PORT_POSIX
-  int flags = 1;
-#elif TD_PORT_WINDOWS
-  BOOL flags = TRUE;
-#endif
-  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<const char *>(&flags), sizeof(flags));
-  setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, reinterpret_cast<const char *>(&flags), sizeof(flags));
-  setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<const char *>(&flags), sizeof(flags));
-#if TD_PORT_POSIX
-#ifndef MSG_NOSIGNAL  // Darwin
-
-#ifdef SO_NOSIGPIPE
-  setsockopt(sock, SOL_SOCKET, SO_NOSIGPIPE, reinterpret_cast<const char *>(&flags), sizeof(flags));
-#else
-#warning "Failed to suppress SIGPIPE signals. Use signal(SIGPIPE, SIG_IGN) to suppress them."
-#endif
-
-#endif
-#endif
-  // TODO: SO_REUSEADDR, SO_KEEPALIVE, TCP_NODELAY, SO_SNDBUF, SO_RCVBUF, TCP_QUICKACK, SO_LINGER
-
-  return Status::OK();
-}
-
-}  // namespace detail
-
-SocketFd::SocketFd() = default;
-SocketFd::SocketFd(SocketFd &&) noexcept = default;
-SocketFd &SocketFd::operator=(SocketFd &&) noexcept = default;
-SocketFd::~SocketFd() = default;
-
-SocketFd::SocketFd(unique_ptr<detail::SocketFdImpl> impl) : impl_(impl.release()) {
-}
-
-Result<SocketFd> SocketFd::from_native_fd(NativeFd fd) {
-  TRY_STATUS(detail::init_socket_options(fd));
-  return SocketFd(make_unique<detail::SocketFdImpl>(std::move(fd)));
-}
-
-Result<SocketFd> SocketFd::open(const IPAddress &address) {
-#if TD_DARWIN_WATCH_OS
-  return SocketFd{};
-#endif
-
-  NativeFd native_fd{socket(address.get_address_family(), SOCK_STREAM, IPPROTO_TCP)};
-  if (!native_fd) {
-    return OS_SOCKET_ERROR("Failed to create a socket");
-  }
-#if TD_PORT_POSIX
-  // Avoid the use of low-numbered file descriptors, which can be used directly by some other functions
-  constexpr int MINIMUM_FILE_DESCRIPTOR = 3;
-  while (native_fd.socket() < MINIMUM_FILE_DESCRIPTOR) {
-    native_fd.close();
-    LOG(ERROR) << "Receive " << native_fd << " as a file descriptor";
-    int dummy_fd = detail::skip_eintr([&] { return ::open("/dev/null", O_RDONLY, 0); });
-    if (dummy_fd < 0) {
-      return OS_ERROR("Can't open /dev/null");
-    }
-    native_fd = NativeFd{socket(address.get_address_family(), SOCK_STREAM, IPPROTO_TCP)};
-    if (!native_fd) {
-      return OS_SOCKET_ERROR("Failed to create a socket");
-    }
-  }
-#endif
-  TRY_STATUS(detail::init_socket_options(native_fd));
-
-#if TD_PORT_POSIX
-  int e_connect =
-      connect(native_fd.socket(), address.get_sockaddr(), narrow_cast<socklen_t>(address.get_sockaddr_len()));
-  if (e_connect == -1) {
-    auto connect_errno = errno;
-    if (connect_errno != EINPROGRESS) {
-      return Status::PosixError(connect_errno, PSLICE() << "Failed to connect to " << address);
-    }
-  }
-  return SocketFd(make_unique<detail::SocketFdImpl>(std::move(native_fd)));
-#elif TD_PORT_WINDOWS
-  auto bind_addr = address.get_any_addr();
-  auto e_bind = bind(native_fd.socket(), bind_addr.get_sockaddr(), narrow_cast<int>(bind_addr.get_sockaddr_len()));
-  if (e_bind != 0) {
-    return OS_SOCKET_ERROR("Failed to bind a socket");
-  }
-  return SocketFd(make_unique<detail::SocketFdImpl>(std::move(native_fd), address));
-#endif
-}
-
-void SocketFd::close() {
-  impl_.reset();
-}
-
-bool SocketFd::empty() const {
-  return !impl_;
-}
-
-PollableFdInfo &SocketFd::get_poll_info() {
-  CHECK(!empty());
-  return impl_->get_poll_info();
-}
-const PollableFdInfo &SocketFd::get_poll_info() const {
-  CHECK(!empty());
-  return impl_->get_poll_info();
-}
-
-const NativeFd &SocketFd::get_native_fd() const {
-  CHECK(!empty());
-  return impl_->get_native_fd();
-}
-
-Status SocketFd::get_pending_error() {
-  CHECK(!empty());
-  return impl_->get_pending_error();
-}
-
-Result<size_t> SocketFd::write(Slice slice) {
-  CHECK(!empty());
-  return impl_->write(slice);
-}
-
-Result<size_t> SocketFd::writev(Span<IoSlice> slices) {
-  CHECK(!empty());
-  return impl_->writev(slices);
-}
-
-Result<size_t> SocketFd::read(MutableSlice slice) {
-  CHECK(!empty());
-  return impl_->read(slice);
-}
-
-Result<uint32> SocketFd::maximize_snd_buffer(uint32 max_size) {
-  return get_native_fd().maximize_snd_buffer(max_size);
-}
-
-Result<uint32> SocketFd::maximize_rcv_buffer(uint32 max_size) {
-  return get_native_fd().maximize_rcv_buffer(max_size);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/SocketFd.h b/third-party/td/td/tdutils/td/utils/port/SocketFd.h
deleted file mode 100644
index 3bd6e75d11..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/SocketFd.h
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/IoSlice.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-namespace td {
-
-namespace detail {
-class SocketFdImpl;
-class SocketFdImplDeleter {
- public:
-  void operator()(SocketFdImpl *impl);
-};
-}  // namespace detail
-
-class SocketFd {
- public:
-  SocketFd();
-  SocketFd(const SocketFd &) = delete;
-  SocketFd &operator=(const SocketFd &) = delete;
-  SocketFd(SocketFd &&) noexcept;
-  SocketFd &operator=(SocketFd &&) noexcept;
-  ~SocketFd();
-
-  Result<uint32> maximize_snd_buffer(uint32 max_size = 0);
-  Result<uint32> maximize_rcv_buffer(uint32 max_size = 0);
-
-  static Result<SocketFd> open(const IPAddress &address) TD_WARN_UNUSED_RESULT;
-
-  PollableFdInfo &get_poll_info();
-  const PollableFdInfo &get_poll_info() const;
-
-  Status get_pending_error() TD_WARN_UNUSED_RESULT;
-
-  Result<size_t> write(Slice slice) TD_WARN_UNUSED_RESULT;
-  Result<size_t> writev(Span<IoSlice> slices) TD_WARN_UNUSED_RESULT;
-  Result<size_t> read(MutableSlice slice) TD_WARN_UNUSED_RESULT;
-
-  const NativeFd &get_native_fd() const;
-  static Result<SocketFd> from_native_fd(NativeFd fd);
-
-  void close();
-  bool empty() const;
-
- private:
-  std::unique_ptr<detail::SocketFdImpl, detail::SocketFdImplDeleter> impl_;
-  explicit SocketFd(unique_ptr<detail::SocketFdImpl> impl);
-};
-
-namespace detail {
-#if TD_PORT_POSIX
-Status get_socket_pending_error(const NativeFd &fd);
-#elif TD_PORT_WINDOWS
-Status get_socket_pending_error(const NativeFd &fd, WSAOVERLAPPED *overlapped, Status iocp_error);
-#endif
-}  // namespace detail
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/Stat.cpp b/third-party/td/td/tdutils/td/utils/port/Stat.cpp
deleted file mode 100644
index 90bf3bd6b7..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/Stat.cpp
+++ /dev/null
@@ -1,416 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/Stat.h"
-
-#include "td/utils/port/FileFd.h"
-
-#if TD_PORT_POSIX
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StackAllocator.h"
-
-#include <utility>
-
-#if TD_DARWIN
-#include <mach/mach.h>
-#include <sys/time.h>
-#endif
-
-// We don't want warnings from system headers
-#if TD_GCC
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wconversion"
-#endif
-#include <sys/stat.h>
-#if TD_GCC
-#pragma GCC diagnostic pop
-#endif
-
-#if TD_ANDROID || TD_TIZEN
-#include <sys/syscall.h>
-#endif
-
-#elif TD_PORT_WINDOWS
-
-#include "td/utils/port/thread.h"
-
-#ifndef PSAPI_VERSION
-#define PSAPI_VERSION 1
-#endif
-#ifdef __MINGW32__
-#include <psapi.h>
-#else
-#include <Psapi.h>
-#endif
-
-#endif
-
-namespace td {
-
-#if TD_PORT_POSIX
-namespace detail {
-
-template <class...>
-struct voider {
-  using type = void;
-};
-template <class... T>
-using void_t = typename voider<T...>::type;
-
-template <class T, class = void>
-struct TimeNsec {
-  static std::pair<int, int> get(const T &) {
-    T().warning("Platform lacks support of precise access/modification file times, comment this line to continue");
-    return {0, 0};
-  }
-};
-
-// remove libc compatibility hacks if any: we have our own hacks
-#ifdef st_atimespec
-#undef st_atimespec
-#endif
-
-#ifdef st_atimensec
-#undef st_atimensec
-#endif
-
-#ifdef st_atime_nsec
-#undef st_atime_nsec
-#endif
-
-template <class T>
-struct TimeNsec<T, void_t<char, decltype(T::st_atimespec), decltype(T::st_mtimespec)>> {
-  static std::pair<decltype(decltype(T::st_atimespec)::tv_nsec), decltype(decltype(T::st_mtimespec)::tv_nsec)> get(
-      const T &s) {
-    return {s.st_atimespec.tv_nsec, s.st_mtimespec.tv_nsec};
-  }
-};
-
-template <class T>
-struct TimeNsec<T, void_t<short, decltype(T::st_atimensec), decltype(T::st_mtimensec)>> {
-  static std::pair<decltype(T::st_atimensec), decltype(T::st_mtimensec)> get(const T &s) {
-    return {s.st_atimensec, s.st_mtimensec};
-  }
-};
-
-template <class T>
-struct TimeNsec<T, void_t<int, decltype(T::st_atim), decltype(T::st_mtim)>> {
-  static std::pair<decltype(decltype(T::st_atim)::tv_nsec), decltype(decltype(T::st_mtim)::tv_nsec)> get(const T &s) {
-    return {s.st_atim.tv_nsec, s.st_mtim.tv_nsec};
-  }
-};
-
-template <class T>
-struct TimeNsec<T, void_t<long, decltype(T::st_atime_nsec), decltype(T::st_mtime_nsec)>> {
-  static std::pair<decltype(T::st_atime_nsec), decltype(T::st_mtime_nsec)> get(const T &s) {
-    return {s.st_atime_nsec, s.st_mtime_nsec};
-  }
-};
-
-Stat from_native_stat(const struct ::stat &buf) {
-  auto time_nsec = TimeNsec<struct ::stat>::get(buf);
-
-  Stat res;
-  res.atime_nsec_ = static_cast<uint64>(buf.st_atime) * 1000000000 + time_nsec.first;
-  res.mtime_nsec_ = static_cast<uint64>(buf.st_mtime) * 1000000000 + time_nsec.second / 1000 * 1000;
-  res.size_ = buf.st_size;
-  res.real_size_ = buf.st_blocks * 512;
-  res.is_dir_ = (buf.st_mode & S_IFMT) == S_IFDIR;
-  res.is_reg_ = (buf.st_mode & S_IFMT) == S_IFREG;
-  res.is_symbolic_link_ = (buf.st_mode & S_IFMT) == S_IFLNK;
-  return res;
-}
-
-Result<Stat> fstat(int native_fd) {
-  struct ::stat buf;
-  if (detail::skip_eintr([&] { return ::fstat(native_fd, &buf); }) < 0) {
-    return OS_ERROR(PSLICE() << "Stat for fd " << native_fd << " failed");
-  }
-  return detail::from_native_stat(buf);
-}
-
-Status update_atime(int native_fd) {
-#if TD_LINUX
-  timespec times[2];
-  // access time
-  times[0].tv_nsec = UTIME_NOW;
-  times[0].tv_sec = 0;
-  // modify time
-  times[1].tv_nsec = UTIME_OMIT;
-  times[1].tv_sec = 0;
-  if (futimens(native_fd, times) < 0) {
-    auto status = OS_ERROR(PSLICE() << "futimens " << tag("fd", native_fd));
-    LOG(WARNING) << status;
-    return status;
-  }
-  return Status::OK();
-#elif TD_DARWIN
-  TRY_RESULT(info, fstat(native_fd));
-  timeval upd[2];
-  auto now = Clocks::system();
-  // access time
-  upd[0].tv_sec = static_cast<decltype(upd[0].tv_sec)>(now);
-  upd[0].tv_usec = static_cast<decltype(upd[0].tv_usec)>((now - static_cast<double>(upd[0].tv_sec)) * 1000000);
-  // modify time
-  upd[1].tv_sec = static_cast<decltype(upd[1].tv_sec)>(info.mtime_nsec_ / 1000000000ll);
-  upd[1].tv_usec = static_cast<decltype(upd[1].tv_usec)>(info.mtime_nsec_ % 1000000000ll / 1000);
-  if (futimes(native_fd, upd) < 0) {
-    auto status = OS_ERROR(PSLICE() << "futimes " << tag("fd", native_fd));
-    LOG(WARNING) << status;
-    return status;
-  }
-  return Status::OK();
-#else
-  return Status::Error("Not supported");
-// timespec times[2];
-//// access time
-// times[0].tv_nsec = UTIME_NOW;
-//// modify time
-// times[1].tv_nsec = UTIME_OMIT;
-////  int err = syscall(__NR_utimensat, native_fd, nullptr, times, 0);
-// if (futimens(native_fd, times) < 0) {
-//   auto status = OS_ERROR(PSLICE() << "futimens " << tag("fd", native_fd));
-//   LOG(WARNING) << status;
-//   return status;
-// }
-// return Status::OK();
-#endif
-}
-}  // namespace detail
-
-Status update_atime(CSlice path) {
-  TRY_RESULT(file, FileFd::open(path, FileFd::Flags::Read));
-  SCOPE_EXIT {
-    file.close();
-  };
-  return detail::update_atime(file.get_native_fd().fd());
-}
-#endif
-
-Result<Stat> stat(CSlice path) {
-#if TD_PORT_POSIX
-  struct ::stat buf;
-  int err = detail::skip_eintr([&] { return ::stat(path.c_str(), &buf); });
-  if (err < 0) {
-    return OS_ERROR(PSLICE() << "Stat for file \"" << path << "\" failed");
-  }
-  return detail::from_native_stat(buf);
-#elif TD_PORT_WINDOWS
-  TRY_RESULT(fd, FileFd::open(path, FileFd::Flags::Read | FileFd::PrivateFlags::WinStat));
-  return fd.stat();
-#endif
-}
-
-Result<MemStat> mem_stat() {
-#if TD_DARWIN
-  task_basic_info t_info;
-  mach_msg_type_number_t t_info_count = TASK_BASIC_INFO_COUNT;
-
-  if (KERN_SUCCESS !=
-      task_info(mach_task_self(), TASK_BASIC_INFO, reinterpret_cast<task_info_t>(&t_info), &t_info_count)) {
-    return Status::Error("Call to task_info failed");
-  }
-  MemStat res;
-  res.resident_size_ = t_info.resident_size;
-  res.virtual_size_ = t_info.virtual_size;
-  res.resident_size_peak_ = 0;
-  res.virtual_size_peak_ = 0;
-  return res;
-#elif TD_LINUX || TD_ANDROID || TD_TIZEN
-  TRY_RESULT(fd, FileFd::open("/proc/self/status", FileFd::Read));
-  SCOPE_EXIT {
-    fd.close();
-  };
-
-  constexpr size_t TMEM_SIZE = 65536;
-  auto buf = StackAllocator::alloc(TMEM_SIZE);
-  char *mem = buf.as_slice().data();
-  TRY_RESULT(size, fd.read(MutableSlice(mem, TMEM_SIZE - 1)));
-  if (size >= TMEM_SIZE - 1) {
-    return Status::Error("The file /proc/self/status is too big");
-  }
-  mem[size] = 0;
-
-  const char *s = mem;
-  MemStat res;
-  while (*s) {
-    const char *name_begin = s;
-    while (*s != 0 && *s != '\n') {
-      s++;
-    }
-    auto name_end = name_begin;
-    while (is_alpha(*name_end)) {
-      name_end++;
-    }
-    Slice name(name_begin, name_end);
-
-    uint64 *x = nullptr;
-    if (name == "VmPeak") {
-      x = &res.virtual_size_peak_;
-    }
-    if (name == "VmSize") {
-      x = &res.virtual_size_;
-    }
-    if (name == "VmHWM") {
-      x = &res.resident_size_peak_;
-    }
-    if (name == "VmRSS") {
-      x = &res.resident_size_;
-    }
-    if (x != nullptr) {
-      Slice value(name_end, s);
-      if (!value.empty() && value[0] == ':') {
-        value.remove_prefix(1);
-      }
-      value = trim(value);
-      value = split(value).first;
-      auto r_mem = to_integer_safe<uint64>(value);
-      if (r_mem.is_error()) {
-        LOG(ERROR) << "Failed to parse memory stats " << tag("name", name) << tag("value", value);
-        *x = static_cast<uint64>(-1);
-      } else {
-        *x = r_mem.ok() * 1024;  // memory is in KB
-      }
-    }
-    if (*s == 0) {
-      break;
-    }
-    s++;
-  }
-
-  return res;
-#elif TD_WINDOWS
-  PROCESS_MEMORY_COUNTERS_EX counters;
-  if (!GetProcessMemoryInfo(GetCurrentProcess(), reinterpret_cast<PROCESS_MEMORY_COUNTERS *>(&counters),
-                            sizeof(counters))) {
-    return Status::Error("Call to GetProcessMemoryInfo failed");
-  }
-
-  // Working set = all non-virtual memory in RAM, including memory-mapped files
-  // PrivateUsage = Commit charge = all non-virtual memory in RAM and swap file, but not in memory-mapped files
-  MemStat res;
-  res.resident_size_ = counters.WorkingSetSize;
-  res.resident_size_peak_ = counters.PeakWorkingSetSize;
-  res.virtual_size_ = counters.PrivateUsage;
-  res.virtual_size_peak_ = counters.PeakPagefileUsage;
-  return res;
-#else
-  return Status::Error("Not supported");
-#endif
-}
-
-#if TD_LINUX
-Status cpu_stat_self(CpuStat &stat) {
-  TRY_RESULT(fd, FileFd::open("/proc/self/stat", FileFd::Read));
-  SCOPE_EXIT {
-    fd.close();
-  };
-
-  constexpr size_t TMEM_SIZE = 65536;
-  auto buf = StackAllocator::alloc(TMEM_SIZE);
-  char *mem = buf.as_slice().data();
-  TRY_RESULT(size, fd.read(MutableSlice(mem, TMEM_SIZE - 1)));
-  if (size >= TMEM_SIZE - 1) {
-    return Status::Error("The file /proc/self/stat is too big");
-  }
-  mem[size] = 0;
-
-  char *s = mem;
-  char *t = mem + size;
-  int pass_cnt = 0;
-
-  while (pass_cnt < 15) {
-    if (pass_cnt == 13) {
-      stat.process_user_ticks_ = to_integer<uint64>(Slice(s, t));
-    }
-    if (pass_cnt == 14) {
-      stat.process_system_ticks_ = to_integer<uint64>(Slice(s, t));
-    }
-    while (*s && *s != ' ') {
-      s++;
-    }
-    if (*s == ' ') {
-      s++;
-      pass_cnt++;
-    } else {
-      return Status::Error("Unexpected end of proc file");
-    }
-  }
-  return Status::OK();
-}
-
-Status cpu_stat_total(CpuStat &stat) {
-  TRY_RESULT(fd, FileFd::open("/proc/stat", FileFd::Read));
-  SCOPE_EXIT {
-    fd.close();
-  };
-
-  constexpr size_t TMEM_SIZE = 65536;
-  auto buf = StackAllocator::alloc(TMEM_SIZE);
-  char *mem = buf.as_slice().data();
-  TRY_RESULT(size, fd.read(MutableSlice(mem, TMEM_SIZE - 1)));
-  if (size >= TMEM_SIZE - 1) {
-    return Status::Error("The file /proc/stat is too big");
-  }
-  mem[size] = 0;
-
-  uint64 sum = 0;
-  uint64 cur = 0;
-  for (size_t i = 0; i < size; i++) {
-    char c = mem[i];
-    if (c >= '0' && c <= '9') {
-      cur = cur * 10 + static_cast<uint64>(c) - '0';
-    } else {
-      sum += cur;
-      cur = 0;
-      if (c == '\n') {
-        break;
-      }
-    }
-  }
-
-  stat.total_ticks_ = sum;
-  return Status::OK();
-}
-#endif
-
-Result<CpuStat> cpu_stat() {
-#if TD_LINUX
-  CpuStat stat;
-  TRY_STATUS(cpu_stat_self(stat));
-  TRY_STATUS(cpu_stat_total(stat));
-  return stat;
-#elif TD_WINDOWS
-  CpuStat stat;
-  stat.total_ticks_ = static_cast<uint64>(GetTickCount64()) * 10000;
-  auto hardware_concurrency = thread::hardware_concurrency();
-  if (hardware_concurrency != 0) {
-    stat.total_ticks_ *= hardware_concurrency;
-  }
-
-  FILETIME ignored_time;
-  FILETIME kernel_time;
-  FILETIME user_time;
-  if (!GetProcessTimes(GetCurrentProcess(), &ignored_time, &ignored_time, &kernel_time, &user_time)) {
-    return Status::Error("Failed to call GetProcessTimes");
-  }
-  stat.process_system_ticks_ = kernel_time.dwLowDateTime + (static_cast<uint64>(kernel_time.dwHighDateTime) << 32);
-  stat.process_user_ticks_ = user_time.dwLowDateTime + (static_cast<uint64>(user_time.dwHighDateTime) << 32);
-
-  return stat;
-#else
-  return Status::Error("Not supported");
-#endif
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/Stat.h b/third-party/td/td/tdutils/td/utils/port/Stat.h
deleted file mode 100644
index 305f71d454..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/Stat.h
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-struct Stat {
-  bool is_dir_;
-  bool is_reg_;
-  bool is_symbolic_link_;
-  int64 size_;
-  int64 real_size_;
-  uint64 atime_nsec_;
-  uint64 mtime_nsec_;
-};
-
-Result<Stat> stat(CSlice path) TD_WARN_UNUSED_RESULT;
-
-struct CpuStat {
-  uint64 total_ticks_{0};
-  uint64 process_user_ticks_{0};
-  uint64 process_system_ticks_{0};
-};
-
-Result<CpuStat> cpu_stat() TD_WARN_UNUSED_RESULT;
-
-struct MemStat {
-  uint64 resident_size_ = 0;
-  uint64 resident_size_peak_ = 0;
-  uint64 virtual_size_ = 0;
-  uint64 virtual_size_peak_ = 0;
-};
-
-Result<MemStat> mem_stat() TD_WARN_UNUSED_RESULT;
-
-#if TD_PORT_POSIX
-
-namespace detail {
-Result<Stat> fstat(int native_fd);
-}  // namespace detail
-
-Status update_atime(CSlice path) TD_WARN_UNUSED_RESULT;
-
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/StdStreams.cpp b/third-party/td/td/tdutils/td/utils/port/StdStreams.cpp
deleted file mode 100644
index 1db6581feb..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/StdStreams.cpp
+++ /dev/null
@@ -1,251 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/StdStreams.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/Iocp.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <atomic>
-
-namespace td {
-
-#if TD_PORT_POSIX
-template <int id>
-static FileFd &get_file_fd() {
-  static FileFd result = FileFd::from_native_fd(NativeFd(id, true));
-  static auto guard = ScopeExit() + [&] {
-    result.move_as_native_fd().release();
-  };
-  return result;
-}
-
-FileFd &Stdin() {
-  return get_file_fd<0>();
-}
-FileFd &Stdout() {
-  return get_file_fd<1>();
-}
-FileFd &Stderr() {
-  return get_file_fd<2>();
-}
-#elif TD_PORT_WINDOWS
-template <DWORD id>
-static FileFd &get_file_fd() {
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-  static auto handle = GetStdHandle(id);
-  LOG_IF(FATAL, handle == INVALID_HANDLE_VALUE) << "Failed to GetStdHandle " << id;
-  static FileFd result = handle == nullptr ? FileFd() : FileFd::from_native_fd(NativeFd(handle, true));
-  static auto guard = ScopeExit() + [&] {
-    if (handle != nullptr) {
-      result.move_as_native_fd().release();
-    }
-  };
-#else
-  static FileFd result;
-#endif
-  return result;
-}
-
-FileFd &Stdin() {
-  return get_file_fd<STD_INPUT_HANDLE>();
-}
-FileFd &Stdout() {
-  return get_file_fd<STD_OUTPUT_HANDLE>();
-}
-FileFd &Stderr() {
-  return get_file_fd<STD_ERROR_HANDLE>();
-}
-#endif
-
-#if TD_PORT_WINDOWS
-namespace detail {
-class BufferedStdinImpl final : private Iocp::Callback {
- public:
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-  BufferedStdinImpl() : info_(NativeFd(GetStdHandle(STD_INPUT_HANDLE), true)) {
-    iocp_ref_ = Iocp::get()->get_ref();
-    read_thread_ = thread([this] { this->read_loop(); });
-  }
-#else
-  BufferedStdinImpl() {
-    close();
-  }
-#endif
-  BufferedStdinImpl(const BufferedStdinImpl &) = delete;
-  BufferedStdinImpl &operator=(const BufferedStdinImpl &) = delete;
-  BufferedStdinImpl(BufferedStdinImpl &&) = delete;
-  BufferedStdinImpl &operator=(BufferedStdinImpl &&) = delete;
-  ~BufferedStdinImpl() {
-    info_.move_as_native_fd().release();
-  }
-  void close() {
-    close_flag_ = true;
-  }
-
-  ChainBufferReader &input_buffer() {
-    return reader_;
-  }
-
-  PollableFdInfo &get_poll_info() {
-    return info_;
-  }
-  const PollableFdInfo &get_poll_info() const {
-    return info_;
-  }
-
-  Result<size_t> flush_read(size_t max_read = std::numeric_limits<size_t>::max()) TD_WARN_UNUSED_RESULT {
-    info_.sync_with_poll();
-    info_.clear_flags(PollFlags::Read());
-    reader_.sync_with_writer();
-    return reader_.size();
-  }
-
- private:
-  PollableFdInfo info_;
-  ChainBufferWriter writer_;
-  ChainBufferReader reader_ = writer_.extract_reader();
-  thread read_thread_;
-  std::atomic<bool> close_flag_{false};
-  IocpRef iocp_ref_;
-  std::atomic<int> refcnt_{1};
-
-  void read_loop() {
-    while (!close_flag_) {
-      auto slice = writer_.prepare_append();
-      auto r_size = read(slice);
-      if (r_size.is_error()) {
-        LOG(ERROR) << "Stop read stdin loop: " << r_size.error();
-        break;
-      }
-      writer_.confirm_append(r_size.ok());
-      inc_refcnt();
-      if (!iocp_ref_.post(0, this, nullptr)) {
-        dec_refcnt();
-      }
-    }
-    if (!iocp_ref_.post(0, this, nullptr)) {
-      read_thread_.detach();
-      dec_refcnt();
-    }
-  }
-  void on_iocp(Result<size_t> r_size, WSAOVERLAPPED *overlapped) final {
-    info_.add_flags_from_poll(PollFlags::Read());
-    dec_refcnt();
-  }
-
-  bool dec_refcnt() {
-    if (--refcnt_ == 0) {
-      delete this;
-      return true;
-    }
-    return false;
-  }
-  void inc_refcnt() {
-    CHECK(refcnt_ != 0);
-    refcnt_++;
-  }
-
-  Result<size_t> read(MutableSlice slice) {
-    auto native_fd = info_.native_fd().fd();
-    DWORD bytes_read = 0;
-    auto res = ReadFile(native_fd, slice.data(), narrow_cast<DWORD>(slice.size()), &bytes_read, nullptr);
-    if (res) {
-      return static_cast<size_t>(bytes_read);
-    }
-    return OS_ERROR(PSLICE() << "Read from " << info_.native_fd() << " has failed");
-  }
-};
-void BufferedStdinImplDeleter::operator()(BufferedStdinImpl *impl) {
-  //  LOG(ERROR) << "Close";
-  impl->close();
-}
-}  // namespace detail
-#elif TD_PORT_POSIX
-namespace detail {
-class BufferedStdinImpl {
- public:
-  BufferedStdinImpl() {
-    file_fd_ = FileFd::from_native_fd(NativeFd(Stdin().get_native_fd().fd()));
-    file_fd_.get_native_fd().set_is_blocking(false);
-  }
-  BufferedStdinImpl(const BufferedStdinImpl &) = delete;
-  BufferedStdinImpl &operator=(const BufferedStdinImpl &) = delete;
-  BufferedStdinImpl(BufferedStdinImpl &&) = delete;
-  BufferedStdinImpl &operator=(BufferedStdinImpl &&) = delete;
-  ~BufferedStdinImpl() {
-    file_fd_.get_native_fd().set_is_blocking(true);
-    file_fd_.move_as_native_fd().release();
-  }
-
-  ChainBufferReader &input_buffer() {
-    return reader_;
-  }
-
-  PollableFdInfo &get_poll_info() {
-    return file_fd_.get_poll_info();
-  }
-  const PollableFdInfo &get_poll_info() const {
-    return file_fd_.get_poll_info();
-  }
-
-  Result<size_t> flush_read(size_t max_read = std::numeric_limits<size_t>::max()) TD_WARN_UNUSED_RESULT {
-    size_t result = 0;
-    ::td::sync_with_poll(*this);
-    while (::td::can_read_local(*this) && max_read) {
-      MutableSlice slice = writer_.prepare_append();
-      slice.truncate(max_read);
-      TRY_RESULT(x, file_fd_.read(slice));
-      slice.truncate(x);
-      writer_.confirm_append(x);
-      result += x;
-      max_read -= x;
-    }
-    if (result) {
-      reader_.sync_with_writer();
-    }
-    return result;
-  }
-
- private:
-  FileFd file_fd_;
-  ChainBufferWriter writer_;
-  ChainBufferReader reader_ = writer_.extract_reader();
-};
-void BufferedStdinImplDeleter::operator()(BufferedStdinImpl *impl) {
-  delete impl;
-}
-}  // namespace detail
-#endif
-
-BufferedStdin::BufferedStdin() : impl_(make_unique<detail::BufferedStdinImpl>().release()) {
-}
-BufferedStdin::BufferedStdin(BufferedStdin &&) noexcept = default;
-BufferedStdin &BufferedStdin::operator=(BufferedStdin &&) noexcept = default;
-BufferedStdin::~BufferedStdin() = default;
-
-ChainBufferReader &BufferedStdin::input_buffer() {
-  return impl_->input_buffer();
-}
-PollableFdInfo &BufferedStdin::get_poll_info() {
-  return impl_->get_poll_info();
-}
-const PollableFdInfo &BufferedStdin::get_poll_info() const {
-  return impl_->get_poll_info();
-}
-Result<size_t> BufferedStdin::flush_read(size_t max_read) {
-  return impl_->flush_read(max_read);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/StdStreams.h b/third-party/td/td/tdutils/td/utils/port/StdStreams.h
deleted file mode 100644
index da23659a36..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/StdStreams.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Status.h"
-
-#include <limits>
-#include <memory>
-
-namespace td {
-
-FileFd &Stdin();
-FileFd &Stdout();
-FileFd &Stderr();
-
-namespace detail {
-class BufferedStdinImpl;
-class BufferedStdinImplDeleter {
- public:
-  void operator()(BufferedStdinImpl *impl);
-};
-}  // namespace detail
-
-class BufferedStdin {
- public:
-  BufferedStdin();
-  BufferedStdin(const BufferedStdin &) = delete;
-  BufferedStdin &operator=(const BufferedStdin &) = delete;
-  BufferedStdin(BufferedStdin &&) noexcept;
-  BufferedStdin &operator=(BufferedStdin &&) noexcept;
-  ~BufferedStdin();
-  ChainBufferReader &input_buffer();
-  PollableFdInfo &get_poll_info();
-  const PollableFdInfo &get_poll_info() const;
-  Result<size_t> flush_read(size_t max_read = std::numeric_limits<size_t>::max()) TD_WARN_UNUSED_RESULT;
-
- private:
-  std::unique_ptr<detail::BufferedStdinImpl, detail::BufferedStdinImplDeleter> impl_;
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/UdpSocketFd.cpp b/third-party/td/td/tdutils/td/utils/port/UdpSocketFd.cpp
deleted file mode 100644
index fd7643a8b7..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/UdpSocketFd.cpp
+++ /dev/null
@@ -1,833 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/UdpSocketFd.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/VectorQueue.h"
-
-#if TD_PORT_WINDOWS
-#include "td/utils/port/detail/Iocp.h"
-#include "td/utils/port/Mutex.h"
-#endif
-
-#if TD_PORT_POSIX
-#include <cerrno>
-
-#include <arpa/inet.h>
-#include <fcntl.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#if TD_LINUX
-#include <linux/errqueue.h>
-#endif
-#endif
-
-#include <array>
-#include <atomic>
-#include <cstring>
-
-namespace td {
-namespace detail {
-#if TD_PORT_WINDOWS
-class UdpSocketReceiveHelper {
- public:
-  void to_native(const UdpMessage &message, WSAMSG &message_header) {
-    socklen_t addr_len{narrow_cast<socklen_t>(sizeof(addr_))};
-    message_header.name = reinterpret_cast<sockaddr *>(&addr_);
-    message_header.namelen = addr_len;
-    buf_.buf = const_cast<char *>(message.data.as_slice().begin());
-    buf_.len = narrow_cast<DWORD>(message.data.size());
-    message_header.lpBuffers = &buf_;
-    message_header.dwBufferCount = 1;
-    message_header.Control.buf = nullptr;  // control_buf_.data();
-    message_header.Control.len = 0;        // narrow_cast<decltype(message_header.Control.len)>(control_buf_.size());
-    message_header.dwFlags = 0;
-  }
-
-  static void from_native(WSAMSG &message_header, size_t message_size, UdpMessage &message) {
-    message.address.init_sockaddr(reinterpret_cast<sockaddr *>(message_header.name), message_header.namelen).ignore();
-    message.error = Status::OK();
-
-    if ((message_header.dwFlags & (MSG_TRUNC | MSG_CTRUNC)) != 0) {
-      message.error = Status::Error(501, "Message too long");
-      message.data = BufferSlice();
-      return;
-    }
-
-    CHECK(message_size <= message.data.size());
-    message.data.truncate(message_size);
-    CHECK(message_size == message.data.size());
-  }
-
- private:
-  std::array<char, 1024> control_buf_;
-  sockaddr_storage addr_;
-  WSABUF buf_;
-};
-
-class UdpSocketSendHelper {
- public:
-  void to_native(const UdpMessage &message, WSAMSG &message_header) {
-    message_header.name = const_cast<sockaddr *>(message.address.get_sockaddr());
-    message_header.namelen = narrow_cast<socklen_t>(message.address.get_sockaddr_len());
-    buf_.buf = const_cast<char *>(message.data.as_slice().begin());
-    buf_.len = narrow_cast<DWORD>(message.data.size());
-    message_header.lpBuffers = &buf_;
-    message_header.dwBufferCount = 1;
-
-    message_header.Control.buf = nullptr;
-    message_header.Control.len = 0;
-    message_header.dwFlags = 0;
-  }
-
- private:
-  WSABUF buf_;
-};
-
-class UdpSocketFdImpl final : private Iocp::Callback {
- public:
-  explicit UdpSocketFdImpl(NativeFd fd) : info_(std::move(fd)) {
-    get_poll_info().add_flags(PollFlags::Write());
-    Iocp::get()->subscribe(get_native_fd(), this);
-    is_receive_active_ = true;
-    notify_iocp_connected();
-  }
-  PollableFdInfo &get_poll_info() {
-    return info_;
-  }
-  const PollableFdInfo &get_poll_info() const {
-    return info_;
-  }
-
-  const NativeFd &get_native_fd() const {
-    return info_.native_fd();
-  }
-
-  void close() {
-    notify_iocp_close();
-  }
-
-  Result<optional<UdpMessage>> receive() {
-    auto lock = lock_.lock();
-    if (!pending_errors_.empty()) {
-      auto status = pending_errors_.pop();
-      if (!UdpSocketFd::is_critical_read_error(status)) {
-        return UdpMessage{{}, {}, std::move(status)};
-      }
-      return std::move(status);
-    }
-    if (!receive_queue_.empty()) {
-      return receive_queue_.pop();
-    }
-
-    return optional<UdpMessage>{};
-  }
-
-  void send(UdpMessage message) {
-    auto lock = lock_.lock();
-    send_queue_.push(std::move(message));
-  }
-
-  Status flush_send() {
-    if (is_send_waiting_) {
-      auto lock = lock_.lock();
-      is_send_waiting_ = false;
-      notify_iocp_send();
-    }
-    return Status::OK();
-  }
-
- private:
-  PollableFdInfo info_;
-  Mutex lock_;
-
-  std::atomic<int> refcnt_{1};
-  bool is_connected_{false};
-  bool close_flag_{false};
-
-  bool is_send_active_{false};
-  bool is_send_waiting_{false};
-  VectorQueue<UdpMessage> send_queue_;
-  WSAOVERLAPPED send_overlapped_;
-
-  bool is_receive_active_{false};
-  VectorQueue<UdpMessage> receive_queue_;
-  VectorQueue<Status> pending_errors_;
-  UdpMessage to_receive_;
-  WSAMSG receive_message_;
-  UdpSocketReceiveHelper receive_helper_;
-  static constexpr size_t MAX_PACKET_SIZE = 2048;
-  static constexpr size_t RESERVED_SIZE = MAX_PACKET_SIZE * 8;
-  BufferSlice receive_buffer_;
-
-  UdpMessage to_send_;
-  WSAOVERLAPPED receive_overlapped_;
-
-  char close_overlapped_;
-
-  bool check_status(Slice message) {
-    auto last_error = WSAGetLastError();
-    if (last_error == ERROR_IO_PENDING) {
-      return true;
-    }
-    on_error(OS_SOCKET_ERROR(message));
-    return false;
-  }
-
-  void loop_receive() {
-    CHECK(!is_receive_active_);
-    if (close_flag_) {
-      return;
-    }
-    std::memset(&receive_overlapped_, 0, sizeof(receive_overlapped_));
-    if (receive_buffer_.size() < MAX_PACKET_SIZE) {
-      receive_buffer_ = BufferSlice(RESERVED_SIZE);
-    }
-    to_receive_.data = receive_buffer_.clone();
-    receive_helper_.to_native(to_receive_, receive_message_);
-
-    LPFN_WSARECVMSG WSARecvMsgPtr = nullptr;
-    GUID guid = WSAID_WSARECVMSG;
-    DWORD numBytes;
-    auto error = ::WSAIoctl(get_native_fd().socket(), SIO_GET_EXTENSION_FUNCTION_POINTER, static_cast<void *>(&guid),
-                            sizeof(guid), static_cast<void *>(&WSARecvMsgPtr), sizeof(WSARecvMsgPtr), &numBytes,
-                            nullptr, nullptr);
-    if (error) {
-      on_error(OS_SOCKET_ERROR("WSAIoctl failed"));
-      return;
-    }
-
-    auto status = WSARecvMsgPtr(get_native_fd().socket(), &receive_message_, nullptr, &receive_overlapped_, nullptr);
-    if (status == 0 || check_status("WSARecvMsg failed")) {
-      inc_refcnt();
-      is_receive_active_ = true;
-    }
-  }
-
-  void loop_send() {
-    CHECK(!is_send_active_);
-
-    {
-      auto lock = lock_.lock();
-      if (send_queue_.empty()) {
-        is_send_waiting_ = true;
-        return;
-      }
-      to_send_ = send_queue_.pop();
-    }
-    std::memset(&send_overlapped_, 0, sizeof(send_overlapped_));
-    WSAMSG message;
-    UdpSocketSendHelper send_helper;
-    send_helper.to_native(to_send_, message);
-    auto status = WSASendMsg(get_native_fd().socket(), &message, 0, nullptr, &send_overlapped_, nullptr);
-    if (status == 0 || check_status("WSASendMsg failed")) {
-      inc_refcnt();
-      is_send_active_ = true;
-    }
-  }
-
-  void on_iocp(Result<size_t> r_size, WSAOVERLAPPED *overlapped) final {
-    // called from other thread
-    if (dec_refcnt() || close_flag_) {
-      VLOG(fd) << "Ignore IOCP (UDP socket is closing)";
-      return;
-    }
-    if (r_size.is_error()) {
-      return on_error(get_socket_pending_error(get_native_fd(), overlapped, r_size.move_as_error()));
-    }
-
-    if (!is_connected_ && overlapped == &receive_overlapped_) {
-      return on_connected();
-    }
-
-    auto size = r_size.move_as_ok();
-    if (overlapped == &send_overlapped_) {
-      return on_send(size);
-    }
-    if (overlapped == nullptr) {
-      CHECK(size == 0);
-      return on_send(size);
-    }
-
-    if (overlapped == &receive_overlapped_) {
-      return on_receive(size);
-    }
-    if (overlapped == reinterpret_cast<WSAOVERLAPPED *>(&close_overlapped_)) {
-      return on_close();
-    }
-    UNREACHABLE();
-  }
-
-  void on_error(Status status) {
-    VLOG(fd) << get_native_fd() << " on error " << status;
-    {
-      auto lock = lock_.lock();
-      pending_errors_.push(std::move(status));
-    }
-    get_poll_info().add_flags_from_poll(PollFlags::Error());
-  }
-
-  void on_connected() {
-    VLOG(fd) << get_native_fd() << " on connected";
-    CHECK(!is_connected_);
-    CHECK(is_receive_active_);
-    is_connected_ = true;
-    is_receive_active_ = false;
-    loop_receive();
-    loop_send();
-  }
-
-  void on_receive(size_t size) {
-    VLOG(fd) << get_native_fd() << " on receive " << size;
-    CHECK(is_receive_active_);
-    is_receive_active_ = false;
-    UdpSocketReceiveHelper::from_native(receive_message_, size, to_receive_);
-    receive_buffer_.confirm_read((to_receive_.data.size() + 7) & ~7);
-    {
-      auto lock = lock_.lock();
-      // LOG(ERROR) << format::escaped(to_receive_.data.as_slice());
-      receive_queue_.push(std::move(to_receive_));
-    }
-    get_poll_info().add_flags_from_poll(PollFlags::Read());
-    loop_receive();
-  }
-
-  void on_send(size_t size) {
-    VLOG(fd) << get_native_fd() << " on send " << size;
-    if (size == 0) {
-      if (is_send_active_) {
-        return;
-      }
-      is_send_active_ = true;
-    }
-    CHECK(is_send_active_);
-    is_send_active_ = false;
-    loop_send();
-  }
-
-  void on_close() {
-    VLOG(fd) << get_native_fd() << " on close";
-    close_flag_ = true;
-    info_.set_native_fd({});
-  }
-
-  bool dec_refcnt() {
-    if (--refcnt_ == 0) {
-      delete this;
-      return true;
-    }
-    return false;
-  }
-
-  void inc_refcnt() {
-    CHECK(refcnt_ != 0);
-    refcnt_++;
-  }
-
-  void notify_iocp_send() {
-    inc_refcnt();
-    Iocp::get()->post(0, this, nullptr);
-  }
-  void notify_iocp_close() {
-    Iocp::get()->post(0, this, reinterpret_cast<WSAOVERLAPPED *>(&close_overlapped_));
-  }
-  void notify_iocp_connected() {
-    inc_refcnt();
-    Iocp::get()->post(0, this, reinterpret_cast<WSAOVERLAPPED *>(&receive_overlapped_));
-  }
-};
-
-void UdpSocketFdImplDeleter::operator()(UdpSocketFdImpl *impl) {
-  impl->close();
-}
-
-#elif TD_PORT_POSIX
-//struct iovec {                  [> Scatter/gather array items <]
-//  void  *iov_base;              [> Starting address <]
-//  size_t iov_len;               [> Number of bytes to transfer <]
-//};
-
-//struct msghdr {
-//  void         *msg_name;       [> optional address <]
-//  socklen_t     msg_namelen;    [> size of address <]
-//  struct iovec *msg_iov;        [> scatter/gather array <]
-//  size_t        msg_iovlen;     [> # elements in msg_iov <]
-//  void         *msg_control;    [> ancillary data, see below <]
-//  size_t        msg_controllen; [> ancillary data buffer len <]
-//  int           msg_flags;      [> flags on received message <]
-//};
-
-class UdpSocketReceiveHelper {
- public:
-  void to_native(const UdpSocketFd::InboundMessage &message, msghdr &message_header) {
-    socklen_t addr_len{narrow_cast<socklen_t>(sizeof(addr_))};
-
-    message_header.msg_name = &addr_;
-    message_header.msg_namelen = addr_len;
-    io_vec_.iov_base = message.data.begin();
-    io_vec_.iov_len = message.data.size();
-    message_header.msg_iov = &io_vec_;
-    message_header.msg_iovlen = 1;
-    message_header.msg_control = control_buf_.data();
-    message_header.msg_controllen = narrow_cast<decltype(message_header.msg_controllen)>(control_buf_.size());
-    message_header.msg_flags = 0;
-  }
-
-  static void from_native(msghdr &message_header, size_t message_size, UdpSocketFd::InboundMessage &message) {
-#if TD_LINUX
-    cmsghdr *cmsg;
-    sock_extended_err *ee = nullptr;
-    for (cmsg = CMSG_FIRSTHDR(&message_header); cmsg != nullptr; cmsg = CMSG_NXTHDR(&message_header, cmsg)) {
-      if (cmsg->cmsg_type == IP_PKTINFO && cmsg->cmsg_level == IPPROTO_IP) {
-        //auto *pi = reinterpret_cast<in_pktinfo *>(CMSG_DATA(cmsg));
-      } else if (cmsg->cmsg_type == IPV6_PKTINFO && cmsg->cmsg_level == IPPROTO_IPV6) {
-        //auto *pi = reinterpret_cast<in6_pktinfo *>(CMSG_DATA(cmsg));
-      } else if ((cmsg->cmsg_type == IP_RECVERR && cmsg->cmsg_level == IPPROTO_IP) ||
-                 (cmsg->cmsg_type == IPV6_RECVERR && cmsg->cmsg_level == IPPROTO_IPV6)) {
-        ee = reinterpret_cast<sock_extended_err *>(CMSG_DATA(cmsg));
-      }
-    }
-    if (ee != nullptr) {
-      auto *addr = reinterpret_cast<sockaddr *>(SO_EE_OFFENDER(ee));
-      IPAddress address;
-      address.init_sockaddr(addr).ignore();
-      if (message.from != nullptr) {
-        *message.from = address;
-      }
-      if (message.error) {
-        *message.error = Status::PosixError(ee->ee_errno, "");
-      }
-      //message.data = MutableSlice();
-      message.data.truncate(0);
-      return;
-    }
-#endif
-    if (message.from != nullptr) {
-      message.from->init_sockaddr(reinterpret_cast<sockaddr *>(message_header.msg_name), message_header.msg_namelen)
-          .ignore();
-    }
-    if (message.error) {
-      *message.error = Status::OK();
-    }
-    if (message_header.msg_flags & MSG_TRUNC) {
-      if (message.error) {
-        *message.error = Status::Error(501, "Message too long");
-      }
-      message.data.truncate(0);
-      return;
-    }
-    CHECK(message_size <= message.data.size());
-    message.data.truncate(message_size);
-    CHECK(message_size == message.data.size());
-  }
-
- private:
-  std::array<char, 1024> control_buf_;
-  sockaddr_storage addr_;
-  iovec io_vec_;
-};
-
-class UdpSocketSendHelper {
- public:
-  void to_native(const UdpSocketFd::OutboundMessage &message, msghdr &message_header) {
-    CHECK(message.to != nullptr && message.to->is_valid());
-    message_header.msg_name = const_cast<sockaddr *>(message.to->get_sockaddr());
-    message_header.msg_namelen = narrow_cast<socklen_t>(message.to->get_sockaddr_len());
-    io_vec_.iov_base = const_cast<char *>(message.data.begin());
-    io_vec_.iov_len = message.data.size();
-    message_header.msg_iov = &io_vec_;
-    message_header.msg_iovlen = 1;
-    //TODO
-    message_header.msg_control = nullptr;
-    message_header.msg_controllen = 0;
-    message_header.msg_flags = 0;
-  }
-
- private:
-  iovec io_vec_;
-};
-
-class UdpSocketFdImpl {
- public:
-  explicit UdpSocketFdImpl(NativeFd fd) : info_(std::move(fd)) {
-  }
-  PollableFdInfo &get_poll_info() {
-    return info_;
-  }
-  const PollableFdInfo &get_poll_info() const {
-    return info_;
-  }
-
-  const NativeFd &get_native_fd() const {
-    return info_.native_fd();
-  }
-  Status get_pending_error() {
-    if (!get_poll_info().get_flags_local().has_pending_error()) {
-      return Status::OK();
-    }
-    TRY_STATUS(detail::get_socket_pending_error(get_native_fd()));
-    get_poll_info().clear_flags(PollFlags::Error());
-    return Status::OK();
-  }
-  Status receive_message(UdpSocketFd::InboundMessage &message, bool &is_received) {
-    is_received = false;
-    int flags = 0;
-    if (get_poll_info().get_flags_local().has_pending_error()) {
-#ifdef MSG_ERRQUEUE
-      flags = MSG_ERRQUEUE;
-#else
-      return get_pending_error();
-#endif
-    }
-
-    msghdr message_header;
-    detail::UdpSocketReceiveHelper helper;
-    helper.to_native(message, message_header);
-
-    auto native_fd = get_native_fd().socket();
-    auto recvmsg_res = detail::skip_eintr([&] { return recvmsg(native_fd, &message_header, flags); });
-    auto recvmsg_errno = errno;
-    if (recvmsg_res >= 0) {
-      UdpSocketReceiveHelper::from_native(message_header, recvmsg_res, message);
-      is_received = true;
-      return Status::OK();
-    }
-    return process_recvmsg_error(recvmsg_errno, is_received);
-  }
-
-  Status process_recvmsg_error(int recvmsg_errno, bool &is_received) {
-    is_received = false;
-    if (recvmsg_errno == EAGAIN
-#if EAGAIN != EWOULDBLOCK
-        || recvmsg_errno == EWOULDBLOCK
-#endif
-    ) {
-      if (get_poll_info().get_flags_local().has_pending_error()) {
-        get_poll_info().clear_flags(PollFlags::Error());
-      } else {
-        get_poll_info().clear_flags(PollFlags::Read());
-      }
-      return Status::OK();
-    }
-
-    auto error = Status::PosixError(recvmsg_errno, PSLICE() << "Receive from " << get_native_fd() << " has failed");
-    switch (recvmsg_errno) {
-      case EBADF:
-      case EFAULT:
-      case EINVAL:
-      case ENOTCONN:
-      case ECONNRESET:
-      case ETIMEDOUT:
-        LOG(FATAL) << error;
-        UNREACHABLE();
-      default:
-        LOG(WARNING) << "Unknown error: " << error;
-      // fallthrough
-      case ENOBUFS:
-      case ENOMEM:
-#ifdef MSG_ERRQUEUE
-        get_poll_info().add_flags(PollFlags::Error());
-#endif
-        return error;
-    }
-  }
-
-  Status send_message(const UdpSocketFd::OutboundMessage &message, bool &is_sent) {
-    is_sent = false;
-    msghdr message_header;
-    detail::UdpSocketSendHelper helper;
-    helper.to_native(message, message_header);
-
-    auto native_fd = get_native_fd().socket();
-    auto sendmsg_res = detail::skip_eintr([&] { return sendmsg(native_fd, &message_header, 0); });
-    auto sendmsg_errno = errno;
-    if (sendmsg_res >= 0) {
-      is_sent = true;
-      return Status::OK();
-    }
-    return process_sendmsg_error(sendmsg_errno, is_sent);
-  }
-  Status process_sendmsg_error(int sendmsg_errno, bool &is_sent) {
-    if (sendmsg_errno == EAGAIN
-#if EAGAIN != EWOULDBLOCK
-        || sendmsg_errno == EWOULDBLOCK
-#endif
-    ) {
-      get_poll_info().clear_flags(PollFlags::Write());
-      return Status::OK();
-    }
-
-    auto error = Status::PosixError(sendmsg_errno, PSLICE() << "Send from " << get_native_fd() << " has failed");
-    switch (sendmsg_errno) {
-      // We still may send some other packets, but there is no point to resend this particular message
-      case EACCES:
-      case EMSGSIZE:
-      case EPERM:
-        LOG(WARNING) << "Silently drop packet :( " << error;
-        //TODO: get errors from MSG_ERRQUEUE is possible
-        is_sent = true;
-        return error;
-
-      // Some general issues, which may be fixed in the future
-      case ENOMEM:
-      case EDQUOT:
-      case EFBIG:
-      case ENETDOWN:
-      case ENETUNREACH:
-      case ENOSPC:
-      case EHOSTUNREACH:
-      case ENOBUFS:
-      default:
-#ifdef MSG_ERRQUEUE
-        get_poll_info().add_flags(PollFlags::Error());
-#endif
-        return error;
-
-      case EBADF:         // impossible
-      case ENOTSOCK:      // impossible
-      case EPIPE:         // impossible for UDP
-      case ECONNRESET:    // impossible for UDP
-      case EDESTADDRREQ:  // we checked that address is valid
-      case ENOTCONN:      // we checked that address is valid
-      case EINTR:         // we already skipped all EINTR
-      case EISCONN:       // impossible for UDP socket
-      case EOPNOTSUPP:
-      case ENOTDIR:
-      case EFAULT:
-      case EINVAL:
-      case EAFNOSUPPORT:
-        LOG(FATAL) << error;
-        UNREACHABLE();
-        return error;
-    }
-  }
-
-  Status send_messages(Span<UdpSocketFd::OutboundMessage> messages, size_t &cnt) {
-#if TD_HAS_MMSG
-    return send_messages_fast(messages, cnt);
-#else
-    return send_messages_slow(messages, cnt);
-#endif
-  }
-
-  Status receive_messages(MutableSpan<UdpSocketFd::InboundMessage> messages, size_t &cnt) {
-#if TD_HAS_MMSG
-    return receive_messages_fast(messages, cnt);
-#else
-    return receive_messages_slow(messages, cnt);
-#endif
-  }
-
- private:
-  PollableFdInfo info_;
-
-  Status send_messages_slow(Span<UdpSocketFd::OutboundMessage> messages, size_t &cnt) {
-    cnt = 0;
-    for (auto &message : messages) {
-      CHECK(!message.data.empty());
-      bool is_sent;
-      auto error = send_message(message, is_sent);
-      cnt += is_sent;
-      TRY_STATUS(std::move(error));
-    }
-    return Status::OK();
-  }
-
-#if TD_HAS_MMSG
-  Status send_messages_fast(Span<UdpSocketFd::OutboundMessage> messages, size_t &cnt) {
-    //struct mmsghdr {
-    //  msghdr msg_hdr;        [> Message header <]
-    //  unsigned int msg_len;  [> Number of bytes transmitted <]
-    //};
-    std::array<detail::UdpSocketSendHelper, 16> helpers;
-    std::array<mmsghdr, 16> headers;
-    size_t to_send = min(messages.size(), headers.size());
-    for (size_t i = 0; i < to_send; i++) {
-      helpers[i].to_native(messages[i], headers[i].msg_hdr);
-      headers[i].msg_len = 0;
-    }
-
-    auto native_fd = get_native_fd().socket();
-    auto sendmmsg_res =
-        detail::skip_eintr([&] { return sendmmsg(native_fd, headers.data(), narrow_cast<unsigned int>(to_send), 0); });
-    auto sendmmsg_errno = errno;
-    if (sendmmsg_res >= 0) {
-      cnt = sendmmsg_res;
-      return Status::OK();
-    }
-
-    bool is_sent = false;
-    auto status = process_sendmsg_error(sendmmsg_errno, is_sent);
-    cnt = is_sent;
-    return status;
-  }
-#endif
-  Status receive_messages_slow(MutableSpan<UdpSocketFd::InboundMessage> messages, size_t &cnt) {
-    cnt = 0;
-    while (cnt < messages.size() && get_poll_info().get_flags_local().can_read()) {
-      auto &message = messages[cnt];
-      CHECK(!message.data.empty());
-      bool is_received;
-      auto error = receive_message(message, is_received);
-      cnt += is_received;
-      TRY_STATUS(std::move(error));
-    }
-    return Status::OK();
-  }
-
-#if TD_HAS_MMSG
-  Status receive_messages_fast(MutableSpan<UdpSocketFd::InboundMessage> messages, size_t &cnt) {
-    int flags = 0;
-    cnt = 0;
-    if (get_poll_info().get_flags_local().has_pending_error()) {
-#ifdef MSG_ERRQUEUE
-      flags = MSG_ERRQUEUE;
-#else
-      return get_pending_error();
-#endif
-    }
-    //struct mmsghdr {
-    //  msghdr msg_hdr;        [> Message header <]
-    //  unsigned int msg_len;  [> Number of bytes transmitted <]
-    //};
-    std::array<detail::UdpSocketReceiveHelper, 16> helpers;
-    std::array<mmsghdr, 16> headers;
-    size_t to_receive = min(messages.size(), headers.size());
-    for (size_t i = 0; i < to_receive; i++) {
-      helpers[i].to_native(messages[i], headers[i].msg_hdr);
-      headers[i].msg_len = 0;
-    }
-
-    auto native_fd = get_native_fd().socket();
-    auto recvmmsg_res = detail::skip_eintr(
-        [&] { return recvmmsg(native_fd, headers.data(), narrow_cast<unsigned int>(to_receive), flags, nullptr); });
-    auto recvmmsg_errno = errno;
-    if (recvmmsg_res >= 0) {
-      cnt = narrow_cast<size_t>(recvmmsg_res);
-      for (size_t i = 0; i < cnt; i++) {
-        UdpSocketReceiveHelper::from_native(headers[i].msg_hdr, headers[i].msg_len, messages[i]);
-      }
-      return Status::OK();
-    }
-
-    bool is_received;
-    auto status = process_recvmsg_error(recvmmsg_errno, is_received);
-    cnt = is_received;
-    return status;
-  }
-#endif
-};
-void UdpSocketFdImplDeleter::operator()(UdpSocketFdImpl *impl) {
-  delete impl;
-}
-#endif
-}  // namespace detail
-
-UdpSocketFd::UdpSocketFd() = default;
-UdpSocketFd::UdpSocketFd(UdpSocketFd &&) noexcept = default;
-UdpSocketFd &UdpSocketFd::operator=(UdpSocketFd &&) noexcept = default;
-UdpSocketFd::~UdpSocketFd() = default;
-PollableFdInfo &UdpSocketFd::get_poll_info() {
-  return impl_->get_poll_info();
-}
-const PollableFdInfo &UdpSocketFd::get_poll_info() const {
-  return impl_->get_poll_info();
-}
-
-Result<UdpSocketFd> UdpSocketFd::open(const IPAddress &address) {
-  NativeFd native_fd{socket(address.get_address_family(), SOCK_DGRAM, IPPROTO_UDP)};
-  if (!native_fd) {
-    return OS_SOCKET_ERROR("Failed to create a socket");
-  }
-  TRY_STATUS(native_fd.set_is_blocking_unsafe(false));
-
-  auto sock = native_fd.socket();
-#if TD_PORT_POSIX
-  int flags = 1;
-#elif TD_PORT_WINDOWS
-  BOOL flags = TRUE;
-#endif
-  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<const char *>(&flags), sizeof(flags));
-  // TODO: SO_REUSEADDR, SO_KEEPALIVE, TCP_NODELAY, SO_SNDBUF, SO_RCVBUF, TCP_QUICKACK, SO_LINGER
-
-  auto bind_addr = address.get_any_addr();
-  bind_addr.set_port(address.get_port());
-  auto e_bind = bind(sock, bind_addr.get_sockaddr(), narrow_cast<int>(bind_addr.get_sockaddr_len()));
-  if (e_bind != 0) {
-    return OS_SOCKET_ERROR("Failed to bind a socket");
-  }
-  return UdpSocketFd(make_unique<detail::UdpSocketFdImpl>(std::move(native_fd)));
-}
-
-UdpSocketFd::UdpSocketFd(unique_ptr<detail::UdpSocketFdImpl> impl) : impl_(impl.release()) {
-}
-
-void UdpSocketFd::close() {
-  impl_.reset();
-}
-
-bool UdpSocketFd::empty() const {
-  return !impl_;
-}
-
-const NativeFd &UdpSocketFd::get_native_fd() const {
-  return get_poll_info().native_fd();
-}
-
-#if TD_PORT_POSIX
-Status UdpSocketFd::send_message(const OutboundMessage &message, bool &is_sent) {
-  return impl_->send_message(message, is_sent);
-}
-Status UdpSocketFd::receive_message(InboundMessage &message, bool &is_received) {
-  return impl_->receive_message(message, is_received);
-}
-
-Status UdpSocketFd::send_messages(Span<OutboundMessage> messages, size_t &count) {
-  return impl_->send_messages(messages, count);
-}
-Status UdpSocketFd::receive_messages(MutableSpan<InboundMessage> messages, size_t &count) {
-  return impl_->receive_messages(messages, count);
-}
-#endif
-#if TD_PORT_WINDOWS
-Result<optional<UdpMessage>> UdpSocketFd::receive() {
-  return impl_->receive();
-}
-
-void UdpSocketFd::send(UdpMessage message) {
-  return impl_->send(std::move(message));
-}
-
-Status UdpSocketFd::flush_send() {
-  return impl_->flush_send();
-}
-#endif
-
-bool UdpSocketFd::is_critical_read_error(const Status &status) {
-  return status.code() == ENOMEM || status.code() == ENOBUFS;
-}
-
-Result<uint32> UdpSocketFd::maximize_snd_buffer(uint32 max_size) {
-  return get_native_fd().maximize_snd_buffer(max_size);
-}
-
-Result<uint32> UdpSocketFd::maximize_rcv_buffer(uint32 max_size) {
-  return get_native_fd().maximize_rcv_buffer(max_size);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/UdpSocketFd.h b/third-party/td/td/tdutils/td/utils/port/UdpSocketFd.h
deleted file mode 100644
index 1ce8c33915..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/UdpSocketFd.h
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/optional.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-namespace td {
-namespace detail {
-class UdpSocketFdImpl;
-class UdpSocketFdImplDeleter {
- public:
-  void operator()(UdpSocketFdImpl *impl);
-};
-}  // namespace detail
-
-struct UdpMessage {
-  IPAddress address;
-  BufferSlice data;
-  Status error;
-};
-
-class UdpSocketFd {
- public:
-  UdpSocketFd();
-  UdpSocketFd(UdpSocketFd &&) noexcept;
-  UdpSocketFd &operator=(UdpSocketFd &&) noexcept;
-  ~UdpSocketFd();
-
-  UdpSocketFd(const UdpSocketFd &) = delete;
-  UdpSocketFd &operator=(const UdpSocketFd &) = delete;
-
-  Result<uint32> maximize_snd_buffer(uint32 max_size = 0);
-  Result<uint32> maximize_rcv_buffer(uint32 max_size = 0);
-
-  static Result<UdpSocketFd> open(const IPAddress &address) TD_WARN_UNUSED_RESULT;
-
-  PollableFdInfo &get_poll_info();
-  const PollableFdInfo &get_poll_info() const;
-  const NativeFd &get_native_fd() const;
-
-  void close();
-  bool empty() const;
-
-  static bool is_critical_read_error(const Status &status);
-
-#if TD_PORT_POSIX
-  struct OutboundMessage {
-    const IPAddress *to;
-    Slice data;
-  };
-  struct InboundMessage {
-    IPAddress *from;
-    MutableSlice data;
-    Status *error;
-  };
-
-  Status send_message(const OutboundMessage &message, bool &is_sent) TD_WARN_UNUSED_RESULT;
-  Status receive_message(InboundMessage &message, bool &is_received) TD_WARN_UNUSED_RESULT;
-
-  Status send_messages(Span<OutboundMessage> messages, size_t &count) TD_WARN_UNUSED_RESULT;
-  Status receive_messages(MutableSpan<InboundMessage> messages, size_t &count) TD_WARN_UNUSED_RESULT;
-#elif TD_PORT_WINDOWS
-  Result<optional<UdpMessage> > receive();
-
-  void send(UdpMessage message);
-
-  Status flush_send();
-#endif
-
- private:
-  std::unique_ptr<detail::UdpSocketFdImpl, detail::UdpSocketFdImplDeleter> impl_;
-  explicit UdpSocketFd(unique_ptr<detail::UdpSocketFdImpl> impl);
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/config.h b/third-party/td/td/tdutils/td/utils/port/config.h
deleted file mode 100644
index 02675d3898..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/config.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/platform.h"
-
-// clang-format off
-
-#if TD_WINDOWS
-  #define TD_PORT_WINDOWS 1
-#else
-  #define TD_PORT_POSIX 1
-#endif
-
-#if TD_LINUX || TD_ANDROID || TD_TIZEN
-  #define TD_POLL_EPOLL 1
-  #define TD_EVENTFD_LINUX 1
-#elif TD_FREEBSD || TD_OPENBSD || TD_NETBSD
-  #define TD_POLL_KQUEUE 1
-  #define TD_EVENTFD_BSD 1
-#elif TD_CYGWIN
-  #define TD_POLL_SELECT 1
-  #define TD_EVENTFD_BSD 1
-#elif TD_EMSCRIPTEN
-  #define TD_POLL_POLL 1
-  #define TD_EVENTFD_UNSUPPORTED 1
-#elif TD_DARWIN
-  #define TD_POLL_KQUEUE 1
-  #define TD_EVENTFD_BSD 1
-#elif TD_WINDOWS
-  #define TD_POLL_WINEVENT 1
-  #define TD_EVENTFD_WINDOWS 1
-#elif TD_ILLUMOS
-  #define TD_POLL_EPOLL 1
-  #define TD_EVENTFD_LINUX 1
-#elif TD_SOLARIS
-  #define TD_POLL_POLL 1
-  #define TD_EVENTFD_BSD 1
-#else
-  #error "Poll's implementation is not defined"
-#endif
-
-#if TD_EMSCRIPTEN
-  #define TD_THREAD_UNSUPPORTED 1
-#elif TD_WINDOWS
-  #define TD_THREAD_STL 1
-#else
-  #define TD_THREAD_PTHREAD 1
-#endif
-
-#if TD_LINUX
-  #define TD_HAS_MMSG 1
-#endif
-
-// clang-format on
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/Epoll.cpp b/third-party/td/td/tdutils/td/utils/port/detail/Epoll.cpp
deleted file mode 100644
index 63c4dc4158..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/Epoll.cpp
+++ /dev/null
@@ -1,126 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/Epoll.h"
-
-char disable_linker_warning_about_empty_file_epoll_cpp TD_UNUSED;
-
-#ifdef TD_POLL_EPOLL
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-#include <cerrno>
-
-#include <unistd.h>
-
-namespace td {
-namespace detail {
-void Epoll::init() {
-  CHECK(!epoll_fd_);
-  epoll_fd_ = NativeFd(epoll_create(1));
-  auto epoll_create_errno = errno;
-  LOG_IF(FATAL, !epoll_fd_) << Status::PosixError(epoll_create_errno, "epoll_create failed");
-
-  events_.resize(1000);
-}
-
-void Epoll::clear() {
-  if (!epoll_fd_) {
-    return;
-  }
-  events_.clear();
-
-  epoll_fd_.close();
-
-  for (auto *list_node = list_root_.next; list_node != &list_root_;) {
-    auto pollable_fd = PollableFd::from_list_node(list_node);
-    list_node = list_node->next;
-  }
-}
-
-void Epoll::subscribe(PollableFd fd, PollFlags flags) {
-  epoll_event event;
-  event.events = EPOLLHUP | EPOLLERR | EPOLLET;
-#ifdef EPOLLRDHUP
-  event.events |= EPOLLRDHUP;
-#endif
-  if (flags.can_read()) {
-    event.events |= EPOLLIN;
-  }
-  if (flags.can_write()) {
-    event.events |= EPOLLOUT;
-  }
-  auto native_fd = fd.native_fd().fd();
-  auto *list_node = fd.release_as_list_node();
-  list_root_.put(list_node);
-  event.data.ptr = list_node;
-
-  int err = epoll_ctl(epoll_fd_.fd(), EPOLL_CTL_ADD, native_fd, &event);
-  auto epoll_ctl_errno = errno;
-  LOG_IF(FATAL, err == -1) << Status::PosixError(epoll_ctl_errno, "epoll_ctl ADD failed")
-                           << ", epoll_fd = " << epoll_fd_.fd() << ", fd = " << native_fd;
-}
-
-void Epoll::unsubscribe(PollableFdRef fd_ref) {
-  auto fd = fd_ref.lock();
-  auto native_fd = fd.native_fd().fd();
-  int err = epoll_ctl(epoll_fd_.fd(), EPOLL_CTL_DEL, native_fd, nullptr);
-  auto epoll_ctl_errno = errno;
-  LOG_IF(FATAL, err == -1) << Status::PosixError(epoll_ctl_errno, "epoll_ctl DEL failed")
-                           << ", epoll_fd = " << epoll_fd_.fd() << ", fd = " << native_fd
-                           << ", status = " << fd.native_fd().validate();
-}
-
-void Epoll::unsubscribe_before_close(PollableFdRef fd) {
-  unsubscribe(fd);
-}
-
-void Epoll::run(int timeout_ms) {
-  int ready_n = epoll_wait(epoll_fd_.fd(), &events_[0], static_cast<int>(events_.size()), timeout_ms);
-  auto epoll_wait_errno = errno;
-  LOG_IF(FATAL, ready_n == -1 && epoll_wait_errno != EINTR)
-      << Status::PosixError(epoll_wait_errno, "epoll_wait failed");
-
-  for (int i = 0; i < ready_n; i++) {
-    PollFlags flags;
-    epoll_event *event = &events_[i];
-    if (event->events & EPOLLIN) {
-      event->events &= ~EPOLLIN;
-      flags = flags | PollFlags::Read();
-    }
-    if (event->events & EPOLLOUT) {
-      event->events &= ~EPOLLOUT;
-      flags = flags | PollFlags::Write();
-    }
-#ifdef EPOLLRDHUP
-    if (event->events & EPOLLRDHUP) {
-      event->events &= ~EPOLLRDHUP;
-      flags = flags | PollFlags::Close();
-    }
-#endif
-    if (event->events & EPOLLHUP) {
-      event->events &= ~EPOLLHUP;
-      flags = flags | PollFlags::Close();
-    }
-    if (event->events & EPOLLERR) {
-      event->events &= ~EPOLLERR;
-      flags = flags | PollFlags::Error();
-    }
-    if (event->events) {
-      LOG(FATAL) << "Unsupported epoll events: " << static_cast<int32>(event->events);
-    }
-    //LOG(DEBUG) << "Epoll event " << tag("fd", event->data.fd) << tag("flags", format::as_binary(flags));
-    auto pollable_fd = PollableFd::from_list_node(static_cast<ListNode *>(event->data.ptr));
-    pollable_fd.add_flags(flags);
-    pollable_fd.release_as_list_node();
-  }
-}
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/Epoll.h b/third-party/td/td/tdutils/td/utils/port/detail/Epoll.h
deleted file mode 100644
index a8d4228efa..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/Epoll.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_POLL_EPOLL
-
-#include "td/utils/common.h"
-#include "td/utils/List.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/PollBase.h"
-#include "td/utils/port/PollFlags.h"
-
-#include <sys/epoll.h>
-
-namespace td {
-namespace detail {
-
-class Epoll final : public PollBase {
- public:
-  Epoll() = default;
-  Epoll(const Epoll &) = delete;
-  Epoll &operator=(const Epoll &) = delete;
-  Epoll(Epoll &&) = delete;
-  Epoll &operator=(Epoll &&) = delete;
-  ~Epoll() final = default;
-
-  void init() final;
-
-  void clear() final;
-
-  void subscribe(PollableFd fd, PollFlags flags) final;
-
-  void unsubscribe(PollableFdRef fd) final;
-
-  void unsubscribe_before_close(PollableFdRef fd) final;
-
-  void run(int timeout_ms) final;
-
-  static bool is_edge_triggered() {
-    return true;
-  }
-
- private:
-  NativeFd epoll_fd_;
-  vector<struct epoll_event> events_;
-  ListNode list_root_;
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/EventFdBsd.cpp b/third-party/td/td/tdutils/td/utils/port/detail/EventFdBsd.cpp
deleted file mode 100644
index 1a3bc188de..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/EventFdBsd.cpp
+++ /dev/null
@@ -1,110 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/EventFdBsd.h"
-
-char disable_linker_warning_about_empty_file_event_fd_bsd_cpp TD_UNUSED;
-
-#ifdef TD_EVENTFD_BSD
-
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Slice.h"
-
-#include <cerrno>
-
-#include <fcntl.h>
-#include <poll.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-
-namespace td {
-namespace detail {
-
-// TODO: it is extremely non optimal on Darwin. kqueue events should be used instead
-void EventFdBsd::init() {
-  int fds[2];
-  int err = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
-  auto socketpair_errno = errno;
-#if TD_CYGWIN
-  // it looks like CYGWIN bug
-  int max_retries = 1000000;
-  while (err == -1 && socketpair_errno == EADDRINUSE && max_retries-- > 0) {
-    err = socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
-    socketpair_errno = errno;
-  }
-// LOG_IF(ERROR, max_retries < 1000000) << max_retries;
-#endif
-  LOG_IF(FATAL, err == -1) << Status::PosixError(socketpair_errno, "socketpair failed");
-
-  auto fd_a = NativeFd(fds[0]);
-  auto fd_b = NativeFd(fds[1]);
-  fd_a.set_is_blocking_unsafe(false).ensure();
-  fd_b.set_is_blocking_unsafe(false).ensure();
-
-  in_ = SocketFd::from_native_fd(std::move(fd_a)).move_as_ok();
-  out_ = SocketFd::from_native_fd(std::move(fd_b)).move_as_ok();
-}
-
-bool EventFdBsd::empty() {
-  return in_.empty();
-}
-
-void EventFdBsd::close() {
-  in_.close();
-  out_.close();
-}
-
-Status EventFdBsd::get_pending_error() {
-  return Status::OK();
-}
-
-PollableFdInfo &EventFdBsd::get_poll_info() {
-  return out_.get_poll_info();
-}
-
-void EventFdBsd::release() {
-  int value = 1;
-  auto result = in_.write(Slice(reinterpret_cast<const char *>(&value), sizeof(value)));
-  if (result.is_error()) {
-    LOG(FATAL) << "EventFdBsd write failed: " << result.error();
-  }
-  size_t size = result.ok();
-  if (size != sizeof(value)) {
-    LOG(FATAL) << "EventFdBsd write returned " << size << " instead of " << sizeof(value);
-  }
-}
-
-void EventFdBsd::acquire() {
-  sync_with_poll(out_);
-  out_.get_poll_info().add_flags(PollFlags::Read());
-  while (can_read_local(out_)) {
-    uint8 value[1024];
-    auto result = out_.read(MutableSlice(value, sizeof(value)));
-    if (result.is_error()) {
-      LOG(FATAL) << "EventFdBsd read failed:" << result.error();
-    }
-  }
-}
-
-void EventFdBsd::wait(int timeout_ms) {
-  detail::skip_eintr_timeout(
-      [this](int timeout_ms) {
-        pollfd fd;
-        fd.fd = get_poll_info().native_fd().fd();
-        fd.events = POLLIN;
-        return poll(&fd, 1, timeout_ms);
-      },
-      timeout_ms);
-}
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/EventFdBsd.h b/third-party/td/td/tdutils/td/utils/port/detail/EventFdBsd.h
deleted file mode 100644
index 225a1212e2..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/EventFdBsd.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_EVENTFD_BSD
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/EventFdBase.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace detail {
-
-class EventFdBsd final : public EventFdBase {
-  SocketFd in_;
-  SocketFd out_;
-
- public:
-  EventFdBsd() = default;
-
-  void init() final;
-
-  bool empty() final;
-
-  void close() final;
-
-  Status get_pending_error() final TD_WARN_UNUSED_RESULT;
-
-  PollableFdInfo &get_poll_info() final;
-
-  void release() final;
-
-  void acquire() final;
-
-  void wait(int timeout_ms) final;
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/EventFdLinux.cpp b/third-party/td/td/tdutils/td/utils/port/detail/EventFdLinux.cpp
deleted file mode 100644
index 227c567a4a..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/EventFdLinux.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/EventFdLinux.h"
-
-char disable_linker_warning_about_empty_file_event_fd_linux_cpp TD_UNUSED;
-
-#ifdef TD_EVENTFD_LINUX
-
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <cerrno>
-
-#include <poll.h>
-#include <sys/eventfd.h>
-#include <unistd.h>
-
-namespace td {
-namespace detail {
-class EventFdLinuxImpl {
- public:
-  PollableFdInfo info_;
-};
-
-EventFdLinux::EventFdLinux() = default;
-EventFdLinux::EventFdLinux(EventFdLinux &&) noexcept = default;
-EventFdLinux &EventFdLinux::operator=(EventFdLinux &&) noexcept = default;
-EventFdLinux::~EventFdLinux() = default;
-
-void EventFdLinux::init() {
-  auto fd = NativeFd(eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC));
-  auto eventfd_errno = errno;
-  LOG_IF(FATAL, !fd) << Status::PosixError(eventfd_errno, "eventfd call failed");
-  impl_ = make_unique<EventFdLinuxImpl>();
-  impl_->info_.set_native_fd(std::move(fd));
-}
-
-bool EventFdLinux::empty() {
-  return !impl_;
-}
-
-void EventFdLinux::close() {
-  impl_.reset();
-}
-
-Status EventFdLinux::get_pending_error() {
-  return Status::OK();
-}
-
-PollableFdInfo &EventFdLinux::get_poll_info() {
-  return impl_->info_;
-}
-
-// NB: will be called from multiple threads
-void EventFdLinux::release() {
-  const uint64 value = 1;
-  auto slice = Slice(reinterpret_cast<const char *>(&value), sizeof(value));
-  auto native_fd = impl_->info_.native_fd().fd();
-
-  auto result = [&]() -> Result<size_t> {
-    auto write_res = detail::skip_eintr([&] { return write(native_fd, slice.begin(), slice.size()); });
-    auto write_errno = errno;
-    if (write_res >= 0) {
-      return narrow_cast<size_t>(write_res);
-    }
-    return Status::PosixError(write_errno, PSLICE() << "Write to fd " << native_fd << " has failed");
-  }();
-
-  if (result.is_error()) {
-    LOG(FATAL) << "EventFdLinux write failed: " << result.error();
-  }
-  size_t size = result.ok();
-  if (size != sizeof(value)) {
-    LOG(FATAL) << "EventFdLinux write returned " << value << " instead of " << sizeof(value);
-  }
-}
-
-void EventFdLinux::acquire() {
-  impl_->info_.sync_with_poll();
-  SCOPE_EXIT {
-    // Clear flags without EAGAIN and EWOULDBLOCK
-    // Looks like it is safe thing to do with eventfd
-    get_poll_info().clear_flags(PollFlags::Read());
-  };
-  uint64 res;
-  auto slice = MutableSlice(reinterpret_cast<char *>(&res), sizeof(res));
-  auto native_fd = impl_->info_.native_fd().fd();
-  auto result = [&]() -> Result<size_t> {
-    CHECK(!slice.empty());
-    auto read_res = detail::skip_eintr([&] { return ::read(native_fd, slice.begin(), slice.size()); });
-    auto read_errno = errno;
-    if (read_res >= 0) {
-      CHECK(read_res != 0);
-      return narrow_cast<size_t>(read_res);
-    }
-    if (read_errno == EAGAIN
-#if EAGAIN != EWOULDBLOCK
-        || read_errno == EWOULDBLOCK
-#endif
-    ) {
-      return 0;
-    }
-    return Status::PosixError(read_errno, PSLICE() << "Read from fd " << native_fd << " has failed");
-  }();
-  if (result.is_error()) {
-    LOG(FATAL) << "EventFdLinux read failed: " << result.error();
-  }
-}
-
-void EventFdLinux::wait(int timeout_ms) {
-  detail::skip_eintr_timeout(
-      [this](int timeout_ms) {
-        pollfd fd;
-        fd.fd = get_poll_info().native_fd().fd();
-        fd.events = POLLIN;
-        return poll(&fd, 1, timeout_ms);
-      },
-      timeout_ms);
-}
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/EventFdLinux.h b/third-party/td/td/tdutils/td/utils/port/detail/EventFdLinux.h
deleted file mode 100644
index c05a81a333..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/EventFdLinux.h
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_EVENTFD_LINUX
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/EventFdBase.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace detail {
-class EventFdLinuxImpl;
-
-class EventFdLinux final : public EventFdBase {
-  unique_ptr<EventFdLinuxImpl> impl_;
-
- public:
-  EventFdLinux();
-  EventFdLinux(EventFdLinux &&) noexcept;
-  EventFdLinux &operator=(EventFdLinux &&) noexcept;
-  ~EventFdLinux() final;
-
-  void init() final;
-
-  bool empty() final;
-
-  void close() final;
-
-  Status get_pending_error() final TD_WARN_UNUSED_RESULT;
-
-  PollableFdInfo &get_poll_info() final;
-
-  void release() final;
-
-  void acquire() final;
-
-  void wait(int timeout_ms) final;
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/EventFdWindows.cpp b/third-party/td/td/tdutils/td/utils/port/detail/EventFdWindows.cpp
deleted file mode 100644
index c38c43078d..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/EventFdWindows.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/EventFdWindows.h"
-
-char disable_linker_warning_about_empty_file_event_fd_windows_cpp TD_UNUSED;
-
-#ifdef TD_EVENTFD_WINDOWS
-
-#include "td/utils/logging.h"
-
-namespace td {
-namespace detail {
-
-void EventFdWindows::init() {
-  auto handle = CreateEventW(nullptr, true, false, nullptr);
-  if (handle == nullptr) {
-    auto error = OS_ERROR("CreateEventW failed");
-    LOG(FATAL) << error;
-  }
-  event_ = NativeFd(handle);
-}
-
-bool EventFdWindows::empty() {
-  return !event_;
-}
-
-void EventFdWindows::close() {
-  event_.close();
-}
-
-Status EventFdWindows::get_pending_error() {
-  return Status::OK();
-}
-
-PollableFdInfo &EventFdWindows::get_poll_info() {
-  UNREACHABLE();
-}
-
-void EventFdWindows::release() {
-  if (SetEvent(event_.fd()) == 0) {
-    auto error = OS_ERROR("SetEvent failed");
-    LOG(FATAL) << error;
-  }
-}
-
-void EventFdWindows::acquire() {
-  if (ResetEvent(event_.fd()) == 0) {
-    auto error = OS_ERROR("ResetEvent failed");
-    LOG(FATAL) << error;
-  }
-}
-
-void EventFdWindows::wait(int timeout_ms) {
-  WaitForSingleObject(event_.fd(), timeout_ms);
-  if (ResetEvent(event_.fd()) == 0) {
-    auto error = OS_ERROR("ResetEvent failed");
-    LOG(FATAL) << error;
-  }
-}
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/EventFdWindows.h b/third-party/td/td/tdutils/td/utils/port/detail/EventFdWindows.h
deleted file mode 100644
index 9ca76c373f..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/EventFdWindows.h
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_EVENTFD_WINDOWS
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/EventFdBase.h"
-#include "td/utils/Status.h"
-
-namespace td {
-namespace detail {
-
-class EventFdWindows final : public EventFdBase {
-  NativeFd event_;
-
- public:
-  EventFdWindows() = default;
-
-  void init() final;
-
-  bool empty() final;
-
-  void close() final;
-
-  Status get_pending_error() final TD_WARN_UNUSED_RESULT;
-
-  PollableFdInfo &get_poll_info() final;
-
-  void release() final;
-
-  void acquire() final;
-
-  void wait(int timeout_ms) final;
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/Iocp.cpp b/third-party/td/td/tdutils/td/utils/port/detail/Iocp.cpp
deleted file mode 100644
index 48e75a5c5f..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/Iocp.cpp
+++ /dev/null
@@ -1,110 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/Iocp.h"
-
-char disable_linker_warning_about_empty_file_iocp_cpp TD_UNUSED;
-
-#ifdef TD_PORT_WINDOWS
-
-#include "td/utils/logging.h"
-
-namespace td {
-namespace detail {
-Iocp::~Iocp() {
-  clear();
-}
-
-void Iocp::loop() {
-  Iocp::Guard guard(this);
-  while (true) {
-    DWORD bytes = 0;
-    ULONG_PTR key = 0;
-    WSAOVERLAPPED *overlapped = nullptr;
-    BOOL ok =
-        GetQueuedCompletionStatus(iocp_handle_->fd(), &bytes, &key, reinterpret_cast<OVERLAPPED **>(&overlapped), 1000);
-    if (bytes || key || overlapped) {
-      // LOG(ERROR) << "Receive IOCP completion status: " << bytes << ' ' << key << ' ' << overlapped;
-    }
-    if (ok) {
-      auto callback = reinterpret_cast<Iocp::Callback *>(key);
-      if (callback == nullptr) {
-        // LOG(ERROR) << "Interrupt IOCP loop";
-        return;
-      }
-      callback->on_iocp(bytes, overlapped);
-    } else {
-      if (overlapped != nullptr) {
-        auto error = OS_ERROR("Receive IOCP error");
-        auto callback = reinterpret_cast<Iocp::Callback *>(key);
-        CHECK(callback != nullptr);
-        callback->on_iocp(std::move(error), overlapped);
-      }
-    }
-  }
-}
-
-void Iocp::interrupt_loop() {
-  post(0, nullptr, nullptr);
-}
-
-void Iocp::init() {
-  CHECK(!iocp_handle_);
-  auto res = CreateIoCompletionPort(INVALID_HANDLE_VALUE, nullptr, 0, 0);
-  if (res == nullptr) {
-    auto error = OS_ERROR("IOCP creation failed");
-    LOG(FATAL) << error;
-  }
-  iocp_handle_ = std::make_shared<NativeFd>(res);
-}
-
-void Iocp::clear() {
-  iocp_handle_.reset();
-}
-
-void Iocp::subscribe(const NativeFd &native_fd, Callback *callback) {
-  CHECK(iocp_handle_);
-  auto iocp_handle =
-      CreateIoCompletionPort(native_fd.fd(), iocp_handle_->fd(), reinterpret_cast<ULONG_PTR>(callback), 0);
-  if (iocp_handle == nullptr) {
-    auto error = OS_ERROR("CreateIoCompletionPort");
-    LOG(FATAL) << error;
-  }
-  LOG_CHECK(iocp_handle == iocp_handle_->fd()) << iocp_handle << " " << iocp_handle_->fd();
-}
-
-IocpRef Iocp::get_ref() const {
-  return IocpRef(iocp_handle_);
-}
-
-static void iocp_post(NativeFd &iocp_handle, size_t size, Iocp::Callback *callback, WSAOVERLAPPED *overlapped) {
-  if (PostQueuedCompletionStatus(iocp_handle.fd(), DWORD(size), reinterpret_cast<ULONG_PTR>(callback),
-                                 reinterpret_cast<OVERLAPPED *>(overlapped)) == 0) {
-    auto error = OS_ERROR("IOCP post failed");
-    LOG(FATAL) << error;
-  }
-}
-
-void Iocp::post(size_t size, Callback *callback, WSAOVERLAPPED *overlapped) {
-  iocp_post(*iocp_handle_, size, callback, overlapped);
-}
-
-IocpRef::IocpRef(std::weak_ptr<NativeFd> iocp_handle) : iocp_handle_(std::move(iocp_handle)) {
-}
-
-bool IocpRef::post(size_t size, Iocp::Callback *callback, WSAOVERLAPPED *overlapped) {
-  auto iocp_handle = iocp_handle_.lock();
-  if (!iocp_handle) {
-    return false;
-  }
-  iocp_post(*iocp_handle, size, callback, overlapped);
-  return true;
-}
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/Iocp.h b/third-party/td/td/tdutils/td/utils/port/detail/Iocp.h
deleted file mode 100644
index a82ae13d06..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/Iocp.h
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_PORT_WINDOWS
-
-#include "td/utils/common.h"
-#include "td/utils/Context.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/Status.h"
-
-#include <memory>
-
-namespace td {
-namespace detail {
-
-class IocpRef;
-class Iocp final : public Context<Iocp> {
- public:
-  Iocp() = default;
-  Iocp(const Iocp &) = delete;
-  Iocp &operator=(const Iocp &) = delete;
-  Iocp(Iocp &&) = delete;
-  Iocp &operator=(Iocp &&) = delete;
-  ~Iocp();
-
-  class Callback {
-   public:
-    virtual ~Callback() = default;
-    virtual void on_iocp(Result<size_t> r_size, WSAOVERLAPPED *overlapped) = 0;
-  };
-
-  void init();
-  void subscribe(const NativeFd &fd, Callback *callback);
-  void post(size_t size, Callback *callback, WSAOVERLAPPED *overlapped);
-  void loop();
-  void interrupt_loop();
-  void clear();
-
-  IocpRef get_ref() const;
-
- private:
-  std::shared_ptr<NativeFd> iocp_handle_;
-};
-
-class IocpRef {
- public:
-  IocpRef() = default;
-  IocpRef(const Iocp &) = delete;
-  IocpRef &operator=(const Iocp &) = delete;
-  IocpRef(IocpRef &&) = default;
-  IocpRef &operator=(IocpRef &&) = default;
-
-  explicit IocpRef(std::weak_ptr<NativeFd> iocp_handle);
-
-  bool post(size_t size, Iocp::Callback *callback, WSAOVERLAPPED *overlapped);
-
- private:
-  std::weak_ptr<NativeFd> iocp_handle_;
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/KQueue.cpp b/third-party/td/td/tdutils/td/utils/port/detail/KQueue.cpp
deleted file mode 100644
index dc7626a6f1..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/KQueue.cpp
+++ /dev/null
@@ -1,183 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/KQueue.h"
-
-char disable_linker_warning_about_empty_file_kqueue_cpp TD_UNUSED;
-
-#ifdef TD_POLL_KQUEUE
-
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-
-#include <cerrno>
-#include <utility>
-
-#include <sys/time.h>
-#include <unistd.h>
-
-namespace td {
-namespace detail {
-
-KQueue::~KQueue() {
-  clear();
-}
-void KQueue::init() {
-  kq_ = NativeFd(kqueue());
-  auto kqueue_errno = errno;
-  LOG_IF(FATAL, !kq_) << Status::PosixError(kqueue_errno, "kqueue creation failed");
-
-  // TODO: const
-  events_.resize(1000);
-  changes_n_ = 0;
-}
-
-void KQueue::clear() {
-  if (!kq_) {
-    return;
-  }
-  events_.clear();
-  kq_.close();
-  for (auto *list_node = list_root_.next; list_node != &list_root_;) {
-    auto pollable_fd = PollableFd::from_list_node(list_node);
-    list_node = list_node->next;
-  }
-}
-
-int KQueue::update(int nevents, const timespec *timeout, bool may_fail) {
-  int err = kevent(kq_.fd(), &events_[0], changes_n_, &events_[0], nevents, timeout);
-  auto kevent_errno = errno;
-
-  bool is_fatal_error = [&] {
-    if (err != -1) {
-      return false;
-    }
-    if (may_fail && kevent_errno == ENOENT) {
-      return false;
-    }
-    return kevent_errno != EINTR;
-  }();
-  if (is_fatal_error) {
-    LOG(FATAL) << Status::PosixError(kevent_errno, "kevent failed");
-  }
-
-  changes_n_ = 0;
-  if (err < 0) {
-    return 0;
-  }
-  return err;
-}
-
-void KQueue::flush_changes(bool may_fail) {
-  if (!changes_n_) {
-    return;
-  }
-  int n = update(0, nullptr, may_fail);
-  CHECK(n == 0);
-}
-
-void KQueue::add_change(std::uintptr_t ident, int16 filter, uint16 flags, uint32 fflags, std::intptr_t data,
-                        void *udata) {
-  if (changes_n_ == static_cast<int>(events_.size())) {
-    flush_changes();
-  }
-#if TD_NETBSD
-  auto set_udata = reinterpret_cast<std::intptr_t>(udata);
-#else
-  auto set_udata = udata;
-#endif
-  EV_SET(&events_[changes_n_], ident, filter, flags, fflags, data, set_udata);
-  VLOG(fd) << "Subscribe [fd:" << ident << "] [filter:" << filter << "] [udata: " << udata << "]";
-  changes_n_++;
-}
-
-void KQueue::subscribe(PollableFd fd, PollFlags flags) {
-  auto native_fd = fd.native_fd().fd();
-  auto list_node = fd.release_as_list_node();
-  list_root_.put(list_node);
-  if (flags.can_read()) {
-    add_change(native_fd, EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, list_node);
-  }
-  if (flags.can_write()) {
-    add_change(native_fd, EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, list_node);
-  }
-}
-
-void KQueue::invalidate(int native_fd) {
-  for (int i = 0; i < changes_n_; i++) {
-    if (events_[i].ident == static_cast<std::uintptr_t>(native_fd)) {
-      changes_n_--;
-      std::swap(events_[i], events_[changes_n_]);
-      i--;
-    }
-  }
-}
-
-void KQueue::unsubscribe(PollableFdRef fd_ref) {
-  auto pollable_fd = fd_ref.lock();
-  auto native_fd = pollable_fd.native_fd().fd();
-
-  // invalidate(fd);
-  flush_changes();
-  add_change(native_fd, EVFILT_READ, EV_DELETE, 0, 0, nullptr);
-  flush_changes(true);
-  add_change(native_fd, EVFILT_WRITE, EV_DELETE, 0, 0, nullptr);
-  flush_changes(true);
-}
-
-void KQueue::unsubscribe_before_close(PollableFdRef fd_ref) {
-  auto pollable_fd = fd_ref.lock();
-  invalidate(pollable_fd.native_fd().fd());
-
-  // just to avoid O(changes_n ^ 2)
-  if (changes_n_ != 0) {
-    flush_changes();
-  }
-}
-
-void KQueue::run(int timeout_ms) {
-  timespec timeout_data;
-  timespec *timeout_ptr;
-  if (timeout_ms == -1) {
-    timeout_ptr = nullptr;
-  } else {
-    timeout_data.tv_sec = timeout_ms / 1000;
-    timeout_data.tv_nsec = timeout_ms % 1000 * 1000000;
-    timeout_ptr = &timeout_data;
-  }
-
-  int n = update(static_cast<int>(events_.size()), timeout_ptr);
-  for (int i = 0; i < n; i++) {
-    struct kevent *event = &events_[i];
-    PollFlags flags;
-    if (event->filter == EVFILT_WRITE) {
-      flags.add_flags(PollFlags::Write());
-    }
-    if (event->filter == EVFILT_READ) {
-      flags.add_flags(PollFlags::Read());
-    }
-    if (event->flags & EV_EOF) {
-      flags.add_flags(PollFlags::Close());
-    }
-    if (event->fflags & EV_ERROR) {
-      LOG(FATAL) << "EV_ERROR in kqueue is not supported";
-    }
-#if TD_NETBSD
-    auto udata = reinterpret_cast<void *>(event->udata);
-#else
-    auto udata = event->udata;
-#endif
-    VLOG(fd) << "Event [fd:" << event->ident << "] [filter:" << event->filter << "] [udata: " << udata << "]";
-    // LOG(WARNING) << "Have event->ident = " << event->ident << "event->filter = " << event->filter;
-    auto pollable_fd = PollableFd::from_list_node(static_cast<ListNode *>(udata));
-    pollable_fd.add_flags(flags);
-    pollable_fd.release_as_list_node();
-  }
-}
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/KQueue.h b/third-party/td/td/tdutils/td/utils/port/detail/KQueue.h
deleted file mode 100644
index e735e9dd05..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/KQueue.h
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_POLL_KQUEUE
-
-#include "td/utils/common.h"
-#include "td/utils/List.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/PollBase.h"
-#include "td/utils/port/PollFlags.h"
-
-#include <cstdint>
-
-#include <sys/types.h>  // must be included before sys/event.h, which depends on sys/types.h on FreeBSD
-
-#include <sys/event.h>
-
-namespace td {
-namespace detail {
-
-class KQueue final : public PollBase {
- public:
-  KQueue() = default;
-  KQueue(const KQueue &) = delete;
-  KQueue &operator=(const KQueue &) = delete;
-  KQueue(KQueue &&) = delete;
-  KQueue &operator=(KQueue &&) = delete;
-  ~KQueue() final;
-
-  void init() final;
-
-  void clear() final;
-
-  void subscribe(PollableFd fd, PollFlags flags) final;
-
-  void unsubscribe(PollableFdRef fd) final;
-
-  void unsubscribe_before_close(PollableFdRef fd) final;
-
-  void run(int timeout_ms) final;
-
-  static bool is_edge_triggered() {
-    return true;
-  }
-
- private:
-  vector<struct kevent> events_;
-  int changes_n_;
-  NativeFd kq_;
-  ListNode list_root_;
-
-  int update(int nevents, const timespec *timeout, bool may_fail = false);
-
-  void invalidate(int native_fd);
-
-  void flush_changes(bool may_fail = false);
-
-  void add_change(std::uintptr_t ident, int16 filter, uint16 flags, uint32 fflags, std::intptr_t data, void *udata);
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/NativeFd.cpp b/third-party/td/td/tdutils/td/utils/port/detail/NativeFd.cpp
deleted file mode 100644
index 4f12892707..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/NativeFd.cpp
+++ /dev/null
@@ -1,302 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/NativeFd.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-
-#if TD_PORT_POSIX
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-#endif
-
-#if TD_FD_DEBUG
-#include <mutex>
-#include <set>
-#endif
-
-namespace td {
-
-int VERBOSITY_NAME(fd) = VERBOSITY_NAME(DEBUG) + 9;
-
-#if TD_FD_DEBUG
-class FdSet {
- public:
-  void on_create_fd(NativeFd::Fd fd) {
-    if (!is_valid(fd)) {
-      return;
-    }
-    if (is_stdio(fd)) {
-      return;
-    }
-    std::unique_lock<std::mutex> guard(mutex_);
-    if (fds_.count(fd) >= 1) {
-      LOG(FATAL) << "Create duplicate fd: " << fd;
-    }
-    fds_.insert(fd);
-  }
-
-  Status validate(NativeFd::Fd fd) {
-    if (!is_valid(fd)) {
-      return Status::Error(PSLICE() << "Invalid fd: " << fd);
-    }
-    if (is_stdio(fd)) {
-      return Status::OK();
-    }
-    std::unique_lock<std::mutex> guard(mutex_);
-    if (fds_.count(fd) != 1) {
-      return Status::Error(PSLICE() << "Unknown fd: " << fd);
-    }
-    return Status::OK();
-  }
-
-  void on_close_fd(NativeFd::Fd fd) {
-    if (!is_valid(fd)) {
-      return;
-    }
-    if (is_stdio(fd)) {
-      return;
-    }
-    std::unique_lock<std::mutex> guard(mutex_);
-    if (fds_.count(fd) != 1) {
-      LOG(FATAL) << "Close unknown fd: " << fd;
-    }
-    fds_.erase(fd);
-  }
-
- private:
-  std::mutex mutex_;
-  std::set<NativeFd::Fd> fds_;
-
-  bool is_stdio(NativeFd::Fd fd) const {
-#if TD_PORT_WINDOWS
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-    return fd == GetStdHandle(STD_INPUT_HANDLE) || fd == GetStdHandle(STD_OUTPUT_HANDLE) ||
-           fd == GetStdHandle(STD_ERROR_HANDLE);
-#else
-    return false;
-#endif
-#else
-    return fd >= 0 && fd <= 2;
-#endif
-  }
-
-  bool is_valid(NativeFd::Fd fd) const {
-#if TD_PORT_WINDOWS
-    return fd != INVALID_HANDLE_VALUE;
-#else
-    return fd >= 0;
-#endif
-  }
-};
-
-namespace {
-FdSet &get_fd_set() {
-  static FdSet res;
-  return res;
-}
-}  // namespace
-
-#endif
-
-Status NativeFd::validate() const {
-#if TD_FD_DEBUG
-  return get_fd_set().validate(fd_);
-#else
-  return Status::OK();
-#endif
-}
-
-NativeFd::NativeFd(Fd fd) : fd_(fd) {
-  VLOG(fd) << *this << " create";
-#if TD_FD_DEBUG
-  get_fd_set().on_create_fd(fd_);
-#endif
-}
-
-NativeFd::NativeFd(Fd fd, bool nolog) : fd_(fd) {
-#if TD_FD_DEBUG
-  get_fd_set().on_create_fd(fd_);
-#endif
-}
-
-#if TD_PORT_WINDOWS
-NativeFd::NativeFd(Socket socket) : fd_(reinterpret_cast<Fd>(socket)), is_socket_(true) {
-  VLOG(fd) << *this << " create";
-#if TD_FD_DEBUG
-  get_fd_set().on_create_fd(fd_);
-#endif
-}
-#endif
-
-NativeFd::NativeFd(NativeFd &&other) noexcept : fd_(other.fd_) {
-#if TD_PORT_WINDOWS
-  is_socket_ = other.is_socket_;
-#endif
-  other.fd_ = empty_fd();
-}
-
-NativeFd &NativeFd::operator=(NativeFd &&other) noexcept {
-  CHECK(this != &other);
-  close();
-  fd_ = other.fd_;
-#if TD_PORT_WINDOWS
-  is_socket_ = other.is_socket_;
-#endif
-  other.fd_ = empty_fd();
-  return *this;
-}
-
-NativeFd::~NativeFd() {
-  close();
-}
-
-NativeFd::operator bool() const noexcept {
-  return fd_ != empty_fd();
-}
-
-NativeFd::Fd NativeFd::empty_fd() {
-#if TD_PORT_POSIX
-  return -1;
-#elif TD_PORT_WINDOWS
-  return INVALID_HANDLE_VALUE;
-#endif
-}
-
-NativeFd::Fd NativeFd::fd() const {
-  return fd_;
-}
-
-NativeFd::Socket NativeFd::socket() const {
-#if TD_PORT_POSIX
-  return fd();
-#elif TD_PORT_WINDOWS
-  CHECK(is_socket_);
-  return reinterpret_cast<Socket>(fd_);
-#endif
-}
-
-Status NativeFd::set_is_blocking(bool is_blocking) const {
-#if TD_PORT_POSIX
-  auto old_flags = fcntl(fd(), F_GETFL);
-  if (old_flags == -1) {
-    return OS_SOCKET_ERROR("Failed to get socket flags");
-  }
-  auto new_flags = is_blocking ? old_flags & ~O_NONBLOCK : old_flags | O_NONBLOCK;
-  if (new_flags != old_flags && fcntl(fd(), F_SETFL, new_flags) == -1) {
-    return OS_SOCKET_ERROR("Failed to set socket flags");
-  }
-
-  return Status::OK();
-#elif TD_PORT_WINDOWS
-  return set_is_blocking_unsafe(is_blocking);
-#endif
-}
-
-Status NativeFd::set_is_blocking_unsafe(bool is_blocking) const {
-#if TD_PORT_POSIX
-  if (fcntl(fd(), F_SETFL, is_blocking ? 0 : O_NONBLOCK) == -1) {
-#elif TD_PORT_WINDOWS
-  u_long mode = is_blocking;
-  if (ioctlsocket(socket(), FIONBIO, &mode) != 0) {
-#endif
-    return OS_SOCKET_ERROR("Failed to change socket flags");
-  }
-  return Status::OK();
-}
-
-Status NativeFd::duplicate(const NativeFd &to) const {
-#if TD_PORT_POSIX
-  CHECK(*this);
-  CHECK(to);
-  if (dup2(fd(), to.fd()) == -1) {
-    return OS_ERROR("Failed to duplicate file descriptor");
-  }
-  return Status::OK();
-#elif TD_PORT_WINDOWS
-  return Status::Error("Not supported");
-#endif
-}
-
-static Result<uint32> maximize_buffer(const NativeFd::Socket &socket, int optname, uint32 max_size) {
-  if (setsockopt(socket, SOL_SOCKET, optname, reinterpret_cast<const char *>(&max_size), sizeof(max_size)) == 0) {
-    // fast path
-    return max_size;
-  }
-
-  /* Start with the default size. */
-  uint32 old_size = 0;
-  socklen_t intsize = sizeof(old_size);
-  if (getsockopt(socket, SOL_SOCKET, optname, reinterpret_cast<char *>(&old_size), &intsize)) {
-    return OS_SOCKET_ERROR("getsockopt() failed");
-  }
-#if TD_LINUX
-  old_size /= 2;
-#endif
-
-  /* Binary-search for the real maximum. */
-  uint32 last_good_size = old_size;
-  uint32 min_size = old_size;
-  while (min_size <= max_size) {
-    uint32 avg_size = min_size + (max_size - min_size) / 2;
-    if (setsockopt(socket, SOL_SOCKET, optname, reinterpret_cast<const char *>(&avg_size), sizeof(avg_size)) == 0) {
-      last_good_size = avg_size;
-      min_size = avg_size + 1;
-    } else {
-      max_size = avg_size - 1;
-    }
-  }
-  return last_good_size;
-}
-
-Result<uint32> NativeFd::maximize_snd_buffer(uint32 max_size) const {
-  return maximize_buffer(socket(), SO_SNDBUF, max_size == 0 ? DEFAULT_MAX_SND_BUFFER_SIZE : max_size);
-}
-
-Result<uint32> NativeFd::maximize_rcv_buffer(uint32 max_size) const {
-  return maximize_buffer(socket(), SO_RCVBUF, max_size == 0 ? DEFAULT_MAX_RCV_BUFFER_SIZE : max_size);
-}
-
-void NativeFd::close() {
-  if (!*this) {
-    return;
-  }
-
-#if TD_FD_DEBUG
-  get_fd_set().on_close_fd(fd());
-#endif
-
-  VLOG(fd) << *this << " close";
-#if TD_PORT_WINDOWS
-  if (is_socket_ ? closesocket(socket()) : !CloseHandle(fd())) {
-#elif TD_PORT_POSIX
-  if (::close(fd()) < 0) {
-#endif
-    auto error = OS_ERROR("Close fd");
-    LOG(ERROR) << error;
-  }
-  fd_ = empty_fd();
-}
-
-NativeFd::Fd NativeFd::release() {
-  VLOG(fd) << *this << " release";
-  auto res = fd_;
-  fd_ = empty_fd();
-#if TD_FD_DEBUG
-  get_fd_set().on_close_fd(res);
-#endif
-  return res;
-}
-
-StringBuilder &operator<<(StringBuilder &sb, const NativeFd &fd) {
-  return sb << tag("fd", fd.fd());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/NativeFd.h b/third-party/td/td/tdutils/td/utils/port/detail/NativeFd.h
deleted file mode 100644
index b5d6c29580..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/NativeFd.h
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-
-namespace td {
-
-extern int VERBOSITY_NAME(fd);
-
-class NativeFd {
- public:
-#if TD_PORT_POSIX
-  using Fd = int;
-  using Socket = int;
-#elif TD_PORT_WINDOWS
-  using Fd = HANDLE;
-  using Socket = SOCKET;
-#endif
-  NativeFd() = default;
-  explicit NativeFd(Fd fd);
-  NativeFd(Fd fd, bool nolog);
-#if TD_PORT_WINDOWS
-  explicit NativeFd(Socket socket);
-#endif
-  NativeFd(const NativeFd &) = delete;
-  NativeFd &operator=(const NativeFd &) = delete;
-  NativeFd(NativeFd &&other) noexcept;
-  NativeFd &operator=(NativeFd &&other) noexcept;
-  ~NativeFd();
-
-  explicit operator bool() const noexcept;
-
-  Fd fd() const;
-  Socket socket() const;
-
-  Status set_is_blocking(bool is_blocking) const;
-
-  Status set_is_blocking_unsafe(bool is_blocking) const;  // may drop other Fd flags on non-Windows
-
-  Status duplicate(const NativeFd &to) const;
-
-  Result<uint32> maximize_snd_buffer(uint32 max_size = 0) const;
-  Result<uint32> maximize_rcv_buffer(uint32 max_size = 0) const;
-
-  void close();
-  Fd release();
-
-  Status validate() const;
-
- private:
-  static Fd empty_fd();
-
-  Fd fd_ = empty_fd();
-#if TD_PORT_WINDOWS
-  bool is_socket_{false};
-#endif
-  static constexpr uint32 DEFAULT_MAX_SND_BUFFER_SIZE = (1 << 24);
-  static constexpr uint32 DEFAULT_MAX_RCV_BUFFER_SIZE = (1 << 24);
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const NativeFd &fd);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/Poll.cpp b/third-party/td/td/tdutils/td/utils/port/detail/Poll.cpp
deleted file mode 100644
index 0dbb1b55fa..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/Poll.cpp
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/Poll.h"
-
-char disable_linker_warning_about_empty_file_poll_cpp TD_UNUSED;
-
-#ifdef TD_POLL_POLL
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Status.h"
-
-#include <cerrno>
-
-namespace td {
-namespace detail {
-
-void Poll::init() {
-}
-
-void Poll::clear() {
-  pollfds_.clear();
-}
-
-void Poll::subscribe(PollableFd fd, PollFlags flags) {
-  unsubscribe(fd.ref());
-  struct pollfd pollfd;
-  pollfd.fd = fd.native_fd().fd();
-  pollfd.events = 0;
-  if (flags.can_read()) {
-    pollfd.events |= POLLIN;
-  }
-  if (flags.can_write()) {
-    pollfd.events |= POLLOUT;
-  }
-  pollfd.revents = 0;
-  pollfds_.push_back(pollfd);
-  fds_.push_back(std::move(fd));
-}
-
-void Poll::unsubscribe(PollableFdRef fd_ref) {
-  auto fd = fd_ref.lock();
-  SCOPE_EXIT {
-    fd.release_as_list_node();
-  };
-  for (auto it = pollfds_.begin(); it != pollfds_.end(); ++it) {
-    if (it->fd == fd.native_fd().fd()) {
-      pollfds_.erase(it);
-      fds_.erase(fds_.begin() + (it - pollfds_.begin()));
-      return;
-    }
-  }
-}
-
-void Poll::unsubscribe_before_close(PollableFdRef fd) {
-  unsubscribe(fd);
-}
-
-void Poll::run(int timeout_ms) {
-  int err = poll(pollfds_.data(), narrow_cast<int>(pollfds_.size()), timeout_ms);
-  auto poll_errno = errno;
-  LOG_IF(FATAL, err == -1 && poll_errno != EINTR) << Status::PosixError(poll_errno, "poll failed");
-
-  for (size_t i = 0; i < pollfds_.size(); i++) {
-    auto &pollfd = pollfds_[i];
-    auto &fd = fds_[i];
-
-    PollFlags flags;
-    if (pollfd.revents & POLLIN) {
-      pollfd.revents &= ~POLLIN;
-      flags = flags | PollFlags::Read();
-    }
-    if (pollfd.revents & POLLOUT) {
-      pollfd.revents &= ~POLLOUT;
-      flags = flags | PollFlags::Write();
-    }
-    if (pollfd.revents & POLLHUP) {
-      pollfd.revents &= ~POLLHUP;
-      flags = flags | PollFlags::Close();
-    }
-    if (pollfd.revents & POLLERR) {
-      pollfd.revents &= ~POLLERR;
-      flags = flags | PollFlags::Error();
-    }
-    if (pollfd.revents & POLLNVAL) {
-      LOG(FATAL) << "Unexpected POLLNVAL " << tag("fd", pollfd.fd);
-    }
-    if (pollfd.revents) {
-      LOG(FATAL) << "Unsupported poll events: " << pollfd.revents;
-    }
-    fd.add_flags(flags);
-  }
-}
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/Poll.h b/third-party/td/td/tdutils/td/utils/port/detail/Poll.h
deleted file mode 100644
index 343a62117c..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/Poll.h
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_POLL_POLL
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/PollBase.h"
-#include "td/utils/port/PollFlags.h"
-
-#include <poll.h>
-
-namespace td {
-namespace detail {
-
-class Poll final : public PollBase {
- public:
-  Poll() = default;
-  Poll(const Poll &) = delete;
-  Poll &operator=(const Poll &) = delete;
-  Poll(Poll &&) = delete;
-  Poll &operator=(Poll &&) = delete;
-  ~Poll() final = default;
-
-  void init() final;
-
-  void clear() final;
-
-  void subscribe(PollableFd fd, PollFlags flags) final;
-
-  void unsubscribe(PollableFdRef fd) final;
-
-  void unsubscribe_before_close(PollableFdRef fd) final;
-
-  void run(int timeout_ms) final;
-
-  static bool is_edge_triggered() {
-    return false;
-  }
-
- private:
-  vector<pollfd> pollfds_;
-  vector<PollableFd> fds_;
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/PollableFd.h b/third-party/td/td/tdutils/td/utils/port/detail/PollableFd.h
deleted file mode 100644
index 2f46cfebbc..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/PollableFd.h
+++ /dev/null
@@ -1,230 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/List.h"
-#include "td/utils/logging.h"
-#include "td/utils/Observer.h"
-#include "td/utils/port/detail/NativeFd.h"
-#include "td/utils/port/Mutex.h"
-#include "td/utils/port/PollFlags.h"
-
-#include <atomic>
-#include <memory>
-
-namespace td {
-
-class PollableFdInfo;
-class PollableFdInfoUnlock {
- public:
-  void operator()(PollableFdInfo *ptr);
-};
-
-class PollableFd;
-class PollableFdRef {
- public:
-  explicit PollableFdRef(ListNode *list_node) : list_node_(list_node) {
-  }
-  PollableFd lock();
-
- private:
-  ListNode *list_node_;
-};
-
-class PollableFd {
- public:
-  // Interface for kqueue, epoll and e.t.c.
-  const NativeFd &native_fd() const;
-
-  ListNode *release_as_list_node();
-  PollableFdRef ref();
-  static PollableFd from_list_node(ListNode *node);
-  void add_flags(PollFlags flags);
-  PollFlags get_flags_unsafe() const;
-
- private:
-  std::unique_ptr<PollableFdInfo, PollableFdInfoUnlock> fd_info_;
-  friend class PollableFdInfo;
-
-  explicit PollableFd(std::unique_ptr<PollableFdInfo, PollableFdInfoUnlock> fd_info) : fd_info_(std::move(fd_info)) {
-  }
-};
-
-inline PollableFd PollableFdRef::lock() {
-  return PollableFd::from_list_node(list_node_);
-}
-
-class PollableFdInfo final : private ListNode {
- public:
-  PollableFdInfo() = default;
-  PollableFdInfo(const PollableFdInfo &) = delete;
-  PollableFdInfo &operator=(const PollableFdInfo &) = delete;
-  PollableFdInfo(PollableFdInfo &&) = delete;
-  PollableFdInfo &operator=(PollableFdInfo &&) = delete;
-
-  PollableFd extract_pollable_fd(ObserverBase *observer) {
-    VLOG(fd) << native_fd() << " extract pollable fd " << tag("observer", observer);
-    CHECK(!empty());
-    bool was_locked = lock_.test_and_set(std::memory_order_acquire);
-    CHECK(!was_locked);
-    set_observer(observer);
-    return PollableFd{std::unique_ptr<PollableFdInfo, PollableFdInfoUnlock>{this}};
-  }
-  PollableFdRef get_pollable_fd_ref() {
-    CHECK(!empty());
-    bool was_locked = lock_.test_and_set(std::memory_order_acquire);
-    CHECK(was_locked);
-    return PollableFdRef{as_list_node()};
-  }
-
-  void add_flags(PollFlags flags) {
-    flags_.write_flags_local(flags);
-  }
-
-  void clear_flags(PollFlags flags) {
-    flags_.clear_flags(flags);
-  }
-  PollFlags sync_with_poll() const {
-    return flags_.read_flags();
-  }
-  PollFlags get_flags_local() const {
-    return flags_.read_flags_local();
-  }
-
-  bool empty() const {
-    return !fd_;
-  }
-
-  void set_native_fd(NativeFd new_native_fd) {
-    if (fd_) {
-      CHECK(!new_native_fd);
-      bool was_locked = lock_.test_and_set(std::memory_order_acquire);
-      CHECK(!was_locked);
-      lock_.clear(std::memory_order_release);
-    }
-
-    fd_ = std::move(new_native_fd);
-  }
-  explicit PollableFdInfo(NativeFd native_fd) {
-    set_native_fd(std::move(native_fd));
-  }
-  const NativeFd &native_fd() const {
-    //CHECK(!empty());
-    return fd_;
-  }
-  NativeFd move_as_native_fd() {
-    return std::move(fd_);
-  }
-
-  ~PollableFdInfo() {
-    VLOG(fd) << native_fd() << " destroy PollableFdInfo";
-    bool was_locked = lock_.test_and_set(std::memory_order_acquire);
-    CHECK(!was_locked);
-  }
-
-  void add_flags_from_poll(PollFlags flags) {
-    VLOG(fd) << native_fd() << " add flags from poll " << flags;
-    if (flags_.write_flags(flags)) {
-      notify_observer();
-    }
-  }
-
- private:
-  NativeFd fd_{};
-  std::atomic_flag lock_ = ATOMIC_FLAG_INIT;
-  PollFlagsSet flags_;
-#if TD_PORT_WINDOWS
-  Mutex observer_lock_;
-#endif
-  ObserverBase *observer_{nullptr};
-
-  friend class PollableFd;
-  friend class PollableFdInfoUnlock;
-
-  void set_observer(ObserverBase *observer) {
-#if TD_PORT_WINDOWS
-    auto lock = observer_lock_.lock();
-#endif
-    CHECK(observer_ == nullptr);
-    observer_ = observer;
-  }
-  void clear_observer() {
-#if TD_PORT_WINDOWS
-    auto lock = observer_lock_.lock();
-#endif
-    observer_ = nullptr;
-  }
-  void notify_observer() {
-#if TD_PORT_WINDOWS
-    auto lock = observer_lock_.lock();
-#endif
-    VLOG(fd) << native_fd() << " notify " << tag("observer", observer_);
-    if (observer_ != nullptr) {
-      observer_->notify();
-    }
-  }
-
-  void unlock() {
-    clear_observer();
-    lock_.clear(std::memory_order_release);
-    as_list_node()->remove();
-  }
-
-  ListNode *as_list_node() {
-    return static_cast<ListNode *>(this);
-  }
-  static PollableFdInfo *from_list_node(ListNode *list_node) {
-    return static_cast<PollableFdInfo *>(list_node);
-  }
-};
-inline void PollableFdInfoUnlock::operator()(PollableFdInfo *ptr) {
-  ptr->unlock();
-}
-
-inline ListNode *PollableFd::release_as_list_node() {
-  return fd_info_.release()->as_list_node();
-}
-inline PollableFdRef PollableFd::ref() {
-  return PollableFdRef{fd_info_->as_list_node()};
-}
-inline PollableFd PollableFd::from_list_node(ListNode *node) {
-  return PollableFd(std::unique_ptr<PollableFdInfo, PollableFdInfoUnlock>(PollableFdInfo::from_list_node(node)));
-}
-
-inline void PollableFd::add_flags(PollFlags flags) {
-  fd_info_->add_flags_from_poll(flags);
-}
-inline PollFlags PollableFd::get_flags_unsafe() const {
-  return fd_info_->get_flags_local();
-}
-inline const NativeFd &PollableFd::native_fd() const {
-  return fd_info_->native_fd();
-}
-
-template <class FdT>
-void sync_with_poll(const FdT &fd) {
-  fd.get_poll_info().sync_with_poll();
-}
-
-template <class FdT>
-bool can_read_local(const FdT &fd) {
-  return fd.get_poll_info().get_flags_local().can_read() || fd.get_poll_info().get_flags_local().has_pending_error();
-}
-
-template <class FdT>
-bool can_write_local(const FdT &fd) {
-  return fd.get_poll_info().get_flags_local().can_write();
-}
-
-template <class FdT>
-bool can_close_local(const FdT &fd) {
-  return fd.get_poll_info().get_flags_local().can_close();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/Select.cpp b/third-party/td/td/tdutils/td/utils/port/detail/Select.cpp
deleted file mode 100644
index dd54c0e0b3..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/Select.cpp
+++ /dev/null
@@ -1,120 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/Select.h"
-
-char disable_linker_warning_about_empty_file_select_cpp TD_UNUSED;
-
-#ifdef TD_POLL_SELECT
-
-#include "td/utils/logging.h"
-
-#include <utility>
-
-namespace td {
-namespace detail {
-
-void Select::init() {
-  FD_ZERO(&all_fd_);
-  FD_ZERO(&read_fd_);
-  FD_ZERO(&write_fd_);
-  FD_ZERO(&except_fd_);
-  max_fd_ = -1;
-}
-
-void Select::clear() {
-  fds_.clear();
-}
-
-void Select::subscribe(PollableFd fd, PollFlags flags) {
-  int native_fd = fd.native_fd().fd();
-  for (auto &it : fds_) {
-    CHECK(it.fd.native_fd().fd() != native_fd);
-  }
-  fds_.push_back(FdInfo{std::move(fd), flags});
-  LOG_CHECK(0 <= native_fd && native_fd < FD_SETSIZE) << native_fd << " " << FD_SETSIZE;
-  FD_SET(native_fd, &all_fd_);
-  if (native_fd > max_fd_) {
-    max_fd_ = native_fd;
-  }
-}
-
-void Select::unsubscribe(PollableFdRef fd) {
-  auto fd_locked = fd.lock();
-  int native_fd = fd_locked.native_fd().fd();
-  fd_locked.release_as_list_node();
-
-  LOG_CHECK(0 <= native_fd && native_fd < FD_SETSIZE) << native_fd << " " << FD_SETSIZE;
-  FD_CLR(native_fd, &all_fd_);
-  FD_CLR(native_fd, &read_fd_);
-  FD_CLR(native_fd, &write_fd_);
-  FD_CLR(native_fd, &except_fd_);
-  while (max_fd_ >= 0 && !FD_ISSET(max_fd_, &all_fd_)) {
-    max_fd_--;
-  }
-  for (auto it = fds_.begin(); it != fds_.end();) {
-    if (it->fd.native_fd().fd() == native_fd) {
-      std::swap(*it, fds_.back());
-      fds_.pop_back();
-      break;
-    } else {
-      ++it;
-    }
-  }
-}
-
-void Select::unsubscribe_before_close(PollableFdRef fd) {
-  unsubscribe(fd);
-}
-
-void Select::run(int timeout_ms) {
-  timeval timeout_data;
-  timeval *timeout_ptr;
-  if (timeout_ms == -1) {
-    timeout_ptr = nullptr;
-  } else {
-    timeout_data.tv_sec = timeout_ms / 1000;
-    timeout_data.tv_usec = timeout_ms % 1000 * 1000;
-    timeout_ptr = &timeout_data;
-  }
-
-  for (auto &it : fds_) {
-    int native_fd = it.fd.native_fd().fd();
-    PollFlags fd_flags = it.fd.get_flags_unsafe();  // concurrent calls are UB
-    if (it.flags.can_write() && !fd_flags.can_write()) {
-      FD_SET(native_fd, &write_fd_);
-    } else {
-      FD_CLR(native_fd, &write_fd_);
-    }
-    if (it.flags.can_read() && !fd_flags.can_read()) {
-      FD_SET(native_fd, &read_fd_);
-    } else {
-      FD_CLR(native_fd, &read_fd_);
-    }
-    FD_SET(native_fd, &except_fd_);
-  }
-
-  select(max_fd_ + 1, &read_fd_, &write_fd_, &except_fd_, timeout_ptr);
-  for (auto &it : fds_) {
-    int native_fd = it.fd.native_fd().fd();
-    PollFlags flags;
-    if (FD_ISSET(native_fd, &read_fd_)) {
-      flags = flags | PollFlags::Read();
-    }
-    if (FD_ISSET(native_fd, &write_fd_)) {
-      flags = flags | PollFlags::Write();
-    }
-    if (FD_ISSET(native_fd, &except_fd_)) {
-      flags = flags | PollFlags::Error();
-    }
-    it.fd.add_flags(flags);
-  }
-}
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/Select.h b/third-party/td/td/tdutils/td/utils/port/detail/Select.h
deleted file mode 100644
index 2b11d05c45..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/Select.h
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_POLL_SELECT
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/PollBase.h"
-#include "td/utils/port/PollFlags.h"
-
-#include <sys/select.h>
-
-namespace td {
-namespace detail {
-
-class Select final : public PollBase {
- public:
-  Select() = default;
-  Select(const Select &) = delete;
-  Select &operator=(const Select &) = delete;
-  Select(Select &&) = delete;
-  Select &operator=(Select &&) = delete;
-  ~Select() final = default;
-
-  void init() final;
-
-  void clear() final;
-
-  void subscribe(PollableFd fd, PollFlags flags) final;
-
-  void unsubscribe(PollableFdRef fd) final;
-
-  void unsubscribe_before_close(PollableFdRef fd) final;
-
-  void run(int timeout_ms) final;
-
-  static bool is_edge_triggered() {
-    return false;
-  }
-
- private:
-  struct FdInfo {
-    PollableFd fd;
-    PollFlags flags;
-  };
-  vector<FdInfo> fds_;
-  fd_set all_fd_;
-  fd_set read_fd_;
-  fd_set write_fd_;
-  fd_set except_fd_;
-  int max_fd_;
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/ThreadIdGuard.cpp b/third-party/td/td/tdutils/td/utils/port/detail/ThreadIdGuard.cpp
deleted file mode 100644
index c17e8d24ee..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/ThreadIdGuard.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/ThreadIdGuard.h"
-
-#include "td/utils/common.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/port/thread_local.h"
-
-#include <mutex>
-#include <set>
-
-namespace td {
-namespace detail {
-class ThreadIdManager {
- public:
-  int32 register_thread() {
-    std::lock_guard<std::mutex> guard(mutex_);
-    if (unused_thread_ids_.empty()) {
-      return ++max_thread_id_;
-    }
-    auto it = unused_thread_ids_.begin();
-    auto result = *it;
-    unused_thread_ids_.erase(it);
-    return result;
-  }
-  void unregister_thread(int32 thread_id) {
-    std::lock_guard<std::mutex> guard(mutex_);
-    CHECK(0 < thread_id && thread_id <= max_thread_id_);
-    bool is_inserted = unused_thread_ids_.insert(thread_id).second;
-    CHECK(is_inserted);
-  }
-
- private:
-  std::mutex mutex_;
-  std::set<int32> unused_thread_ids_;
-  int32 max_thread_id_ = 0;
-};
-static ThreadIdManager thread_id_manager;
-static ExitGuard exit_guard;
-
-ThreadIdGuard::ThreadIdGuard() {
-  thread_id_ = thread_id_manager.register_thread();
-  set_thread_id(thread_id_);
-}
-ThreadIdGuard::~ThreadIdGuard() {
-  if (!ExitGuard::is_exited()) {
-    thread_id_manager.unregister_thread(thread_id_);
-  }
-  set_thread_id(0);
-}
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/ThreadIdGuard.h b/third-party/td/td/tdutils/td/utils/port/detail/ThreadIdGuard.h
deleted file mode 100644
index 6e0f2bb0c4..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/ThreadIdGuard.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-namespace detail {
-class ThreadIdGuard {
- public:
-  ThreadIdGuard();
-  ~ThreadIdGuard();
-  ThreadIdGuard(const ThreadIdGuard &) = delete;
-  ThreadIdGuard &operator=(const ThreadIdGuard &) = delete;
-  ThreadIdGuard(ThreadIdGuard &&) = delete;
-  ThreadIdGuard &operator=(ThreadIdGuard &&) = delete;
-
- private:
-  int32 thread_id_;
-};
-}  // namespace detail
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/ThreadPthread.cpp b/third-party/td/td/tdutils/td/utils/port/detail/ThreadPthread.cpp
deleted file mode 100644
index dd9bfeeb1a..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/ThreadPthread.cpp
+++ /dev/null
@@ -1,217 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/ThreadPthread.h"
-
-char disable_linker_warning_about_empty_file_thread_pthread_cpp TD_UNUSED;
-
-#if TD_THREAD_PTHREAD
-
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#if TD_NETBSD
-#include "td/utils/ScopeGuard.h"
-#endif
-
-#include <pthread.h>
-#if TD_FREEBSD
-#include <pthread_np.h>
-#endif
-#include <sched.h>
-#include <signal.h>
-#if TD_FREEBSD
-#include <sys/cpuset.h>
-#endif
-#if TD_FREEBSD || TD_OPENBSD || TD_NETBSD
-#include <sys/sysctl.h>
-#endif
-#include <unistd.h>
-
-namespace td {
-namespace detail {
-unsigned ThreadPthread::hardware_concurrency() {
-// Linux and macOS
-#if defined(_SC_NPROCESSORS_ONLN)
-  {
-    auto res = sysconf(_SC_NPROCESSORS_ONLN);
-    if (res > 0) {
-      return narrow_cast<unsigned>(res);
-    }
-  }
-#endif
-
-#if TD_FREEBSD || TD_OPENBSD || TD_NETBSD
-#if defined(HW_AVAILCPU) && defined(CTL_HW)
-  {
-    int mib[2] = {CTL_HW, HW_AVAILCPU};
-    int res{0};
-    size_t len = sizeof(res);
-    if (sysctl(mib, 2, &res, &len, nullptr, 0) == 0 && res != 0) {
-      return res;
-    }
-  }
-#endif
-
-#if defined(HW_NCPU) && defined(CTL_HW)
-  {
-    int mib[2] = {CTL_HW, HW_NCPU};
-    int res{0};
-    size_t len = sizeof(res);
-    if (sysctl(mib, 2, &res, &len, nullptr, 0) == 0 && res != 0) {
-      return res;
-    }
-  }
-#endif
-#endif
-
-  // Just in case
-  return 8;
-}
-
-void ThreadPthread::set_name(CSlice name) {
-#if defined(_GNU_SOURCE) && defined(__GLIBC_PREREQ)
-#if __GLIBC_PREREQ(2, 12)
-  pthread_setname_np(thread_, name.c_str());
-#endif
-#endif
-}
-
-void ThreadPthread::join() {
-  if (is_inited_.get()) {
-    is_inited_ = false;
-    pthread_join(thread_, nullptr);
-  }
-}
-
-void ThreadPthread::detach() {
-  if (is_inited_.get()) {
-    is_inited_ = false;
-    pthread_detach(thread_);
-  }
-}
-
-void ThreadPthread::send_real_time_signal(id thread_id, int real_time_signal_number) {
-#ifdef SIGRTMIN
-  pthread_kill(thread_id, SIGRTMIN + real_time_signal_number);
-#endif
-}
-
-int ThreadPthread::do_pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *),
-                                     void *arg) {
-  return pthread_create(thread, attr, start_routine, arg);
-}
-
-#if TD_HAVE_THREAD_AFFINITY
-Status ThreadPthread::set_affinity_mask(id thread_id, uint64 mask) {
-#if TD_LINUX || TD_FREEBSD
-#if TD_FREEBSD
-  cpuset_t cpuset;
-#else
-  cpu_set_t cpuset;
-#endif
-  CPU_ZERO(&cpuset);
-  for (int j = 0; j < 64 && j < CPU_SETSIZE; j++) {
-    if ((mask >> j) & 1) {
-      CPU_SET(j, &cpuset);
-    }
-  }
-
-  auto res = skip_eintr([&] { return pthread_setaffinity_np(thread_id, sizeof(cpuset), &cpuset); });
-  if (res) {
-    return OS_ERROR("Failed to set thread affinity mask");
-  }
-  return Status::OK();
-#elif TD_NETBSD
-  cpuset_t *cpuset = cpuset_create();
-  if (cpuset == nullptr) {
-    return OS_ERROR("Failed to create cpuset");
-  }
-  SCOPE_EXIT {
-    cpuset_destroy(cpuset);
-  };
-  for (int j = 0; j < 64; j++) {
-    if ((mask >> j) & 1) {
-      if (cpuset_set(j, cpuset) != 0) {
-        return OS_ERROR("Failed to set CPU identifier");
-      }
-    }
-  }
-
-  auto res = skip_eintr([&] { return pthread_setaffinity_np(thread_id, cpuset_size(cpuset), cpuset); });
-  if (res) {
-    return OS_ERROR("Failed to set thread affinity mask");
-  }
-  if (get_affinity_mask(thread_id) != mask) {
-    return Status::Error("Failed to set exact thread affinity mask");
-  }
-  return Status::OK();
-#else
-  return Status::Error("Unsupported");
-#endif
-}
-
-uint64 ThreadPthread::get_affinity_mask(id thread_id) {
-#if TD_LINUX || TD_FREEBSD
-#if TD_FREEBSD
-  cpuset_t cpuset;
-#else
-  cpu_set_t cpuset;
-#endif
-  CPU_ZERO(&cpuset);
-  auto res = skip_eintr([&] { return pthread_getaffinity_np(thread_id, sizeof(cpuset), &cpuset); });
-  if (res) {
-    return 0;
-  }
-
-  uint64 mask = 0;
-  for (int j = 0; j < 64 && j < CPU_SETSIZE; j++) {
-    if (CPU_ISSET(j, &cpuset)) {
-      mask |= static_cast<uint64>(1) << j;
-    }
-  }
-  return mask;
-#elif TD_NETBSD
-  cpuset_t *cpuset = cpuset_create();
-  if (cpuset == nullptr) {
-    return 0;
-  }
-  SCOPE_EXIT {
-    cpuset_destroy(cpuset);
-  };
-  auto res = skip_eintr([&] { return pthread_getaffinity_np(thread_id, cpuset_size(cpuset), cpuset); });
-  if (res) {
-    return 0;
-  }
-
-  uint64 mask = 0;
-  for (int j = 0; j < 64; j++) {
-    if (cpuset_isset(j, cpuset) > 0) {
-      mask |= static_cast<uint64>(1) << j;
-    }
-  }
-  if (mask == 0) {
-    // the mask wasn't set, all CPUs are allowed
-    auto proc_count = sysconf(_SC_NPROCESSORS_ONLN);
-    for (int j = 0; j < 64 && j < proc_count; j++) {
-      mask |= static_cast<uint64>(1) << j;
-    }
-  }
-  return mask;
-#else
-  return 0;
-#endif
-}
-#endif
-
-namespace this_thread_pthread {
-ThreadPthread::id get_id() {
-  return pthread_self();
-}
-}  // namespace this_thread_pthread
-
-}  // namespace detail
-}  // namespace td
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/ThreadPthread.h b/third-party/td/td/tdutils/td/utils/port/detail/ThreadPthread.h
deleted file mode 100644
index cbcfce87ed..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/ThreadPthread.h
+++ /dev/null
@@ -1,113 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_THREAD_PTHREAD
-
-#include "td/utils/common.h"
-#include "td/utils/Destructor.h"
-#include "td/utils/invoke.h"
-#include "td/utils/MovableValue.h"
-#include "td/utils/port/detail/ThreadIdGuard.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <tuple>
-#include <type_traits>
-#include <utility>
-
-#if TD_OPENBSD || TD_SOLARIS
-#include <pthread.h>
-#endif
-#include <sys/types.h>
-
-#if TD_LINUX || TD_FREEBSD || TD_NETBSD
-#define TD_HAVE_THREAD_AFFINITY 1
-#endif
-
-namespace td {
-namespace detail {
-
-class ThreadPthread {
- public:
-  ThreadPthread() = default;
-  ThreadPthread(const ThreadPthread &) = delete;
-  ThreadPthread &operator=(const ThreadPthread &) = delete;
-  ThreadPthread(ThreadPthread &&other) noexcept : is_inited_(std::move(other.is_inited_)), thread_(other.thread_) {
-  }
-  ThreadPthread &operator=(ThreadPthread &&other) noexcept {
-    join();
-    is_inited_ = std::move(other.is_inited_);
-    thread_ = other.thread_;
-    return *this;
-  }
-  template <class Function, class... Args>
-  explicit ThreadPthread(Function &&f, Args &&...args) {
-    auto func = create_destructor([args = std::make_tuple(decay_copy(std::forward<Function>(f)),
-                                                          decay_copy(std::forward<Args>(args))...)]() mutable {
-      invoke_tuple(std::move(args));
-      clear_thread_locals();
-    });
-    do_pthread_create(&thread_, nullptr, run_thread, func.release());
-    is_inited_ = true;
-  }
-  ~ThreadPthread() {
-    join();
-  }
-
-  void set_name(CSlice name);
-
-  void join();
-
-  void detach();
-
-  static unsigned hardware_concurrency();
-
-  using id = pthread_t;
-
-  id get_id() noexcept {
-    return thread_;
-  }
-
-  static void send_real_time_signal(id thread_id, int real_time_signal_number);
-
-#if TD_HAVE_THREAD_AFFINITY
-  static Status set_affinity_mask(id thread_id, uint64 mask);
-
-  static uint64 get_affinity_mask(id thread_id);
-#endif
-
- private:
-  MovableValue<bool> is_inited_;
-  pthread_t thread_;
-
-  template <class T>
-  std::decay_t<T> decay_copy(T &&v) {
-    return std::forward<T>(v);
-  }
-
-  static int do_pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *),
-                               void *arg);
-
-  static void *run_thread(void *ptr) {
-    ThreadIdGuard thread_id_guard;
-    auto func = unique_ptr<Destructor>(static_cast<Destructor *>(ptr));
-    return nullptr;
-  }
-};
-
-namespace this_thread_pthread {
-ThreadPthread::id get_id();
-}  // namespace this_thread_pthread
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/ThreadStl.h b/third-party/td/td/tdutils/td/utils/port/detail/ThreadStl.h
deleted file mode 100644
index 4bff131765..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/ThreadStl.h
+++ /dev/null
@@ -1,153 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_THREAD_STL
-
-#include "td/utils/common.h"
-#include "td/utils/invoke.h"
-#if TD_WINDOWS && TD_MSVC
-#include "td/utils/port/detail/NativeFd.h"
-#endif
-#include "td/utils/port/detail/ThreadIdGuard.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <thread>
-#include <tuple>
-#include <type_traits>
-#include <utility>
-
-#if TD_WINDOWS && TD_MSVC
-#define TD_HAVE_THREAD_AFFINITY 1
-#endif
-
-namespace td {
-namespace detail {
-
-class ThreadStl {
- public:
-  ThreadStl() = default;
-  ThreadStl(const ThreadStl &) = delete;
-  ThreadStl &operator=(const ThreadStl &) = delete;
-  ThreadStl(ThreadStl &&) = default;
-  ThreadStl &operator=(ThreadStl &&) = default;
-  ~ThreadStl() {
-    join();
-  }
-
-  template <class Function, class... Args>
-  explicit ThreadStl(Function &&f, Args &&...args) {
-    thread_ = std::thread([args = std::make_tuple(decay_copy(std::forward<Function>(f)),
-                                                  decay_copy(std::forward<Args>(args))...)]() mutable {
-      ThreadIdGuard thread_id_guard;
-      invoke_tuple(std::move(args));
-      clear_thread_locals();
-    });
-  }
-
-  void join() {
-    if (thread_.joinable()) {
-      thread_.join();
-    }
-  }
-
-  void detach() {
-    if (thread_.joinable()) {
-      thread_.detach();
-    }
-  }
-
-  void set_name(CSlice name) {
-    // not supported
-  }
-
-  static unsigned hardware_concurrency() {
-    return std::thread::hardware_concurrency();
-  }
-
-#if TD_WINDOWS && TD_MSVC
-  using id = DWORD;
-#else
-  using id = std::thread::id;
-#endif
-
-  id get_id() noexcept {
-#if TD_WINDOWS && TD_MSVC
-    static_assert(std::is_same<decltype(thread_.native_handle()), HANDLE>::value,
-                  "Expected HANDLE as native thread type");
-    return GetThreadId(thread_.native_handle());
-#else
-    return thread_.get_id();
-#endif
-  }
-
-  static void send_real_time_signal(id thread_id, int real_time_signal_number) {
-    // not supported
-  }
-
-#if TD_HAVE_THREAD_AFFINITY
-  static Status set_affinity_mask(id thread_id, uint64 mask) {
-    if (static_cast<DWORD_PTR>(mask) != mask) {
-      return Status::Error("Invalid thread affinity mask specified");
-    }
-    auto handle = OpenThread(THREAD_SET_LIMITED_INFORMATION | THREAD_QUERY_LIMITED_INFORMATION, FALSE, thread_id);
-    if (handle == nullptr) {
-      return Status::Error("Failed to access thread");
-    }
-    NativeFd thread_handle(handle);
-    if (SetThreadAffinityMask(thread_handle.fd(), static_cast<DWORD_PTR>(mask))) {
-      return Status::OK();
-    }
-    return OS_ERROR("Failed to set thread affinity mask");
-  }
-
-  static uint64 get_affinity_mask(id thread_id) {
-    DWORD_PTR process_mask = 0;
-    DWORD_PTR system_mask = 0;
-    if (GetProcessAffinityMask(GetCurrentProcess(), &process_mask, &system_mask)) {
-      auto handle = OpenThread(THREAD_SET_LIMITED_INFORMATION | THREAD_QUERY_LIMITED_INFORMATION, FALSE, thread_id);
-      if (handle == nullptr) {
-        return 0;
-      }
-      NativeFd thread_handle(handle);
-      auto result = SetThreadAffinityMask(thread_handle.fd(), process_mask);
-      if (result != 0 && result != process_mask) {
-        SetThreadAffinityMask(thread_handle.fd(), result);
-      }
-      return result;
-    }
-    return 0;
-  }
-#endif
-
- private:
-  std::thread thread_;
-
-  template <class T>
-  std::decay_t<T> decay_copy(T &&v) {
-    return std::forward<T>(v);
-  }
-};
-
-namespace this_thread_stl {
-#if TD_WINDOWS && TD_MSVC
-inline ThreadStl::id get_id() {
-  return GetCurrentThreadId();
-}
-#else
-using std::this_thread::get_id;
-#endif
-}  // namespace this_thread_stl
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/WineventPoll.cpp b/third-party/td/td/tdutils/td/utils/port/detail/WineventPoll.cpp
deleted file mode 100644
index c814d8dd77..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/WineventPoll.cpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/detail/WineventPoll.h"
-
-char disable_linker_warning_about_empty_file_wineventpoll_cpp TD_UNUSED;
-
-#ifdef TD_POLL_WINEVENT
-
-#include "td/utils/common.h"
-
-namespace td {
-namespace detail {
-
-void WineventPoll::init() {
-}
-
-void WineventPoll::clear() {
-}
-
-void WineventPoll::subscribe(PollableFd fd, PollFlags flags) {
-  fd.release_as_list_node();
-}
-
-void WineventPoll::unsubscribe(PollableFdRef fd) {
-  auto pollable_fd = fd.lock();  // unlocked in destructor
-}
-
-void WineventPoll::unsubscribe_before_close(PollableFdRef fd) {
-  unsubscribe(std::move(fd));
-}
-
-void WineventPoll::run(int timeout_ms) {
-  UNREACHABLE();
-}
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/WineventPoll.h b/third-party/td/td/tdutils/td/utils/port/detail/WineventPoll.h
deleted file mode 100644
index 83b6def284..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/WineventPoll.h
+++ /dev/null
@@ -1,50 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#ifdef TD_POLL_WINEVENT
-
-#include "td/utils/common.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/PollBase.h"
-#include "td/utils/port/PollFlags.h"
-
-namespace td {
-namespace detail {
-
-class WineventPoll final : public PollBase {
- public:
-  WineventPoll() = default;
-  WineventPoll(const WineventPoll &) = delete;
-  WineventPoll &operator=(const WineventPoll &) = delete;
-  WineventPoll(WineventPoll &&) = delete;
-  WineventPoll &operator=(WineventPoll &&) = delete;
-  ~WineventPoll() final = default;
-
-  void init() final;
-
-  void clear() final;
-
-  void subscribe(PollableFd fd, PollFlags flags) final;
-
-  void unsubscribe(PollableFdRef fd) final;
-
-  void unsubscribe_before_close(PollableFdRef fd) final;
-
-  void run(int timeout_ms) final;
-
-  static bool is_edge_triggered() {
-    return true;
-  }
-};
-
-}  // namespace detail
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/detail/skip_eintr.h b/third-party/td/td/tdutils/td/utils/port/detail/skip_eintr.h
deleted file mode 100644
index c941c44832..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/detail/skip_eintr.h
+++ /dev/null
@@ -1,63 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#if TD_PORT_POSIX
-#include "td/utils/common.h"
-#include "td/utils/Time.h"
-
-#include <cerrno>
-#include <type_traits>
-#endif
-
-namespace td {
-
-#if TD_PORT_POSIX
-namespace detail {
-template <class F>
-auto skip_eintr(F &&f) {
-  decltype(f()) res;
-  static_assert(std::is_integral<decltype(res)>::value, "integral type expected");
-  do {
-    errno = 0;  // just in case
-    res = f();
-  } while (res < 0 && errno == EINTR);
-  return res;
-}
-
-template <class F>
-auto skip_eintr_cstr(F &&f) {
-  char *res;
-  do {
-    errno = 0;  // just in case
-    res = f();
-  } while (res == nullptr && errno == EINTR);
-  return res;
-}
-
-template <class F>
-auto skip_eintr_timeout(F &&f, int32 timeout_ms) {
-  decltype(f(timeout_ms)) res;
-  static_assert(std::is_integral<decltype(res)>::value, "integral type expected");
-
-  auto start = Timestamp::now();
-  auto left_timeout_ms = timeout_ms;
-  while (true) {
-    errno = 0;  // just in case
-    res = f(left_timeout_ms);
-    if (res >= 0 || errno != EINTR) {
-      break;
-    }
-    left_timeout_ms =
-        static_cast<int32>(td::max((start.at() - Timestamp::now().at()) * 1000 + timeout_ms + 1 - 1e-9, 0.0));
-  }
-  return res;
-}
-}  // namespace detail
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/path.cpp b/third-party/td/td/tdutils/td/utils/port/path.cpp
deleted file mode 100644
index d7574b8031..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/path.cpp
+++ /dev/null
@@ -1,666 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/path.h"
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/skip_eintr.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-
-#if TD_PORT_WINDOWS
-#include "td/utils/port/FromApp.h"
-#include "td/utils/port/wstring_convert.h"
-#include "td/utils/Random.h"
-#endif
-
-#if TD_PORT_POSIX
-
-#include <dirent.h>
-#include <limits.h>
-#include <stdio.h>
-
-// We don't want warnings from system headers
-#if TD_GCC
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wconversion"
-#endif
-#include <sys/stat.h>
-#if TD_GCC
-#pragma GCC diagnostic pop
-#endif
-
-#include <sys/types.h>
-#include <unistd.h>
-
-#endif
-
-#if TD_DARWIN
-#include <sys/syslimits.h>
-#endif
-
-#include <cerrno>
-#include <cstdlib>
-#include <string>
-
-namespace td {
-
-static string temporary_dir;
-
-Status set_temporary_dir(CSlice dir) {
-  string input_dir = dir.str();
-  if (!dir.empty() && dir.back() != TD_DIR_SLASH) {
-    input_dir += TD_DIR_SLASH;
-  }
-  TRY_STATUS(mkpath(input_dir, 0750));
-  TRY_RESULT_ASSIGN(temporary_dir, realpath(input_dir));
-  return Status::OK();
-}
-
-Status mkpath(CSlice path, int32 mode) {
-  Status first_error = Status::OK();
-  Status last_error = Status::OK();
-  for (size_t i = 1; i < path.size(); i++) {
-    if (path[i] == TD_DIR_SLASH) {
-      last_error = mkdir(PSLICE() << path.substr(0, i), mode);
-      if (last_error.is_error() && first_error.is_ok()) {
-        first_error = last_error.clone();
-      }
-    }
-  }
-  if (last_error.is_error()) {
-    if (last_error.message() == first_error.message() && last_error.code() == first_error.code()) {
-      return first_error;
-    }
-    return last_error.move_as_error_suffix(PSLICE() << ": " << first_error);
-  }
-  return Status::OK();
-}
-
-Status rmrf(CSlice path) {
-  return walk_path(path, [](CSlice path, WalkPath::Type type) {
-    switch (type) {
-      case WalkPath::Type::EnterDir:
-        break;
-      case WalkPath::Type::ExitDir:
-        rmdir(path).ignore();
-        break;
-      case WalkPath::Type::RegularFile:
-        unlink(path).ignore();
-        break;
-      case WalkPath::Type::Symlink:
-        // never follow symbolic links, but delete the link themselves
-        unlink(path).ignore();
-        break;
-    }
-  });
-}
-
-#if TD_PORT_POSIX
-
-Status mkdir(CSlice dir, int32 mode) {
-  int mkdir_res = [&] {
-    int res;
-    do {
-      errno = 0;  // just in case
-      res = ::mkdir(dir.c_str(), static_cast<mode_t>(mode));
-    } while (res < 0 && (errno == EINTR || errno == EAGAIN));
-    return res;
-  }();
-  if (mkdir_res == 0) {
-    return Status::OK();
-  }
-  auto mkdir_errno = errno;
-  if (mkdir_errno == EEXIST) {
-    // TODO check that it is a directory
-    return Status::OK();
-  }
-  return Status::PosixError(mkdir_errno, PSLICE() << "Can't create directory \"" << dir << '"');
-}
-
-Status rename(CSlice from, CSlice to) {
-  int rename_res = detail::skip_eintr([&] { return ::rename(from.c_str(), to.c_str()); });
-  if (rename_res < 0) {
-    return OS_ERROR(PSLICE() << "Can't rename \"" << from << "\" to \"" << to << '\"');
-  }
-  return Status::OK();
-}
-
-Result<string> realpath(CSlice slice, bool ignore_access_denied) {
-  char full_path[PATH_MAX + 1];
-  string res;
-  char *err = detail::skip_eintr_cstr([&] { return ::realpath(slice.c_str(), full_path); });
-  if (err != full_path) {
-    if (ignore_access_denied && (errno == EACCES || errno == EPERM)) {
-      res = slice.str();
-    } else {
-      return OS_ERROR(PSLICE() << "Realpath failed for \"" << slice << '"');
-    }
-  } else {
-    res = full_path;
-  }
-  if (res.empty()) {
-    return Status::Error("Empty path");
-  }
-  if (!slice.empty() && slice.end()[-1] == TD_DIR_SLASH) {
-    if (res.back() != TD_DIR_SLASH) {
-      res += TD_DIR_SLASH;
-    }
-  }
-  return res;
-}
-
-Status chdir(CSlice dir) {
-  int chdir_res = detail::skip_eintr([&] { return ::chdir(dir.c_str()); });
-  if (chdir_res) {
-    return OS_ERROR(PSLICE() << "Can't change directory to \"" << dir << '"');
-  }
-  return Status::OK();
-}
-
-Status rmdir(CSlice dir) {
-  int rmdir_res = detail::skip_eintr([&] { return ::rmdir(dir.c_str()); });
-  if (rmdir_res) {
-    return OS_ERROR(PSLICE() << "Can't delete directory \"" << dir << '"');
-  }
-  return Status::OK();
-}
-
-Status unlink(CSlice path) {
-  int unlink_res = detail::skip_eintr([&] { return ::unlink(path.c_str()); });
-  if (unlink_res) {
-    return OS_ERROR(PSLICE() << "Can't unlink \"" << path << '"');
-  }
-  return Status::OK();
-}
-
-CSlice get_temporary_dir() {
-  static bool is_inited = [] {
-    if (temporary_dir.empty()) {
-      const char *s = std::getenv("TMPDIR");
-      if (s != nullptr && s[0] != '\0') {
-        temporary_dir = s;
-      } else if (P_tmpdir != nullptr && P_tmpdir[0] != '\0') {
-        temporary_dir = P_tmpdir;
-      } else {
-        return false;
-      }
-    }
-    if (temporary_dir.size() > 1 && temporary_dir.back() == TD_DIR_SLASH) {
-      temporary_dir.pop_back();
-    }
-    return true;
-  }();
-  LOG_IF(FATAL, !is_inited) << "Can't find temporary directory";
-  return temporary_dir;
-}
-
-Result<std::pair<FileFd, string>> mkstemp(CSlice dir) {
-  if (dir.empty()) {
-    dir = get_temporary_dir();
-    if (dir.empty()) {
-      return Status::Error("Can't find temporary directory");
-    }
-  }
-
-  TRY_RESULT(dir_real, realpath(dir));
-  CHECK(!dir_real.empty());
-
-  string file_pattern;
-  file_pattern.reserve(dir_real.size() + 14);
-  file_pattern = dir_real;
-  if (file_pattern.back() != TD_DIR_SLASH) {
-    file_pattern += TD_DIR_SLASH;
-  }
-  file_pattern += "tmpXXXXXXXXXX";
-
-  int fd = detail::skip_eintr([&] { return ::mkstemp(&file_pattern[0]); });
-  if (fd == -1) {
-    return OS_ERROR(PSLICE() << "Can't create temporary file \"" << file_pattern << '"');
-  }
-  if (close(fd)) {
-    return OS_ERROR(PSLICE() << "Can't close temporary file \"" << file_pattern << '"');
-  }
-  // TODO create file from fd
-  TRY_RESULT(file, FileFd::open(file_pattern, FileFd::Write | FileFd::Truncate | FileFd::Append));
-  return std::make_pair(std::move(file), std::move(file_pattern));
-}
-
-Result<string> mkdtemp(CSlice dir, Slice prefix) {
-  if (dir.empty()) {
-    dir = get_temporary_dir();
-    if (dir.empty()) {
-      return Status::Error("Can't find temporary directory");
-    }
-  }
-
-  TRY_RESULT(dir_real, realpath(dir));
-  CHECK(!dir_real.empty());
-
-  string dir_pattern;
-  dir_pattern.reserve(dir_real.size() + prefix.size() + 7);
-  dir_pattern = dir_real;
-  if (dir_pattern.back() != TD_DIR_SLASH) {
-    dir_pattern += TD_DIR_SLASH;
-  }
-  dir_pattern.append(prefix.begin(), prefix.size());
-  dir_pattern += "XXXXXX";
-
-  char *result = detail::skip_eintr_cstr([&] { return ::mkdtemp(&dir_pattern[0]); });
-  if (result == nullptr) {
-    return OS_ERROR(PSLICE() << "Can't create temporary directory \"" << dir_pattern << '"');
-  }
-  return result;
-}
-
-namespace detail {
-using WalkFunction = std::function<WalkPath::Action(CSlice name, WalkPath::Type type)>;
-Result<bool> walk_path_dir(string &path, FileFd fd, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
-
-Result<bool> walk_path_dir(string &path, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
-
-Result<bool> walk_path_file(string &path, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
-
-Result<bool> walk_path_symlink(string &path, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
-
-Result<bool> walk_path(string &path, const WalkFunction &func) TD_WARN_UNUSED_RESULT;
-
-Result<bool> walk_path_subdir(string &path, DIR *dir, const WalkFunction &func) {
-  while (true) {
-    errno = 0;
-    auto *entry = readdir(dir);
-    auto readdir_errno = errno;
-    if (readdir_errno) {
-      return Status::PosixError(readdir_errno, "readdir");
-    }
-    if (entry == nullptr) {
-      return true;
-    }
-    Slice name = Slice(static_cast<const char *>(entry->d_name));
-    if (name == "." || name == "..") {
-      continue;
-    }
-    auto size = path.size();
-    if (path.back() != TD_DIR_SLASH) {
-      path += TD_DIR_SLASH;
-    }
-    path.append(name.begin(), name.size());
-    SCOPE_EXIT {
-      path.resize(size);
-    };
-    Result<bool> status = true;
-#ifdef DT_DIR
-    if (entry->d_type == DT_UNKNOWN) {
-      status = walk_path(path, func);
-    } else if (entry->d_type == DT_DIR) {
-      status = walk_path_dir(path, func);
-    } else if (entry->d_type == DT_REG) {
-      status = walk_path_file(path, func);
-    } else if (entry->d_type == DT_LNK) {
-      status = walk_path_symlink(path, func);
-    }
-#else
-#if !TD_SOLARIS
-#warning "Slow walk_path"
-#endif
-    status = walk_path(path, func);
-#endif
-    if (status.is_error() || !status.ok()) {
-      return status;
-    }
-  }
-}
-
-Result<bool> walk_path_dir(string &path, DIR *subdir, const WalkFunction &func) {
-  SCOPE_EXIT {
-    closedir(subdir);
-  };
-  switch (func(path, WalkPath::Type::EnterDir)) {
-    case WalkPath::Action::Abort:
-      return false;
-    case WalkPath::Action::SkipDir:
-      return true;
-    case WalkPath::Action::Continue:
-      break;
-  }
-  auto status = walk_path_subdir(path, subdir, func);
-  if (status.is_error() || !status.ok()) {
-    return status;
-  }
-  switch (func(path, WalkPath::Type::ExitDir)) {
-    case WalkPath::Action::Abort:
-      return false;
-    case WalkPath::Action::SkipDir:
-    case WalkPath::Action::Continue:
-      break;
-  }
-  return true;
-}
-
-Result<bool> walk_path_dir(string &path, FileFd fd, const WalkFunction &func) {
-  auto native_fd = fd.move_as_native_fd();
-  auto *subdir = fdopendir(native_fd.fd());
-  if (subdir == nullptr) {
-    return OS_ERROR("fdopendir");
-  }
-  native_fd.release();
-  return walk_path_dir(path, subdir, func);
-}
-
-Result<bool> walk_path_dir(string &path, const WalkFunction &func) {
-  auto *subdir = opendir(path.c_str());
-  if (subdir == nullptr) {
-    return OS_ERROR(PSLICE() << tag("opendir", path));
-  }
-  return walk_path_dir(path, subdir, func);
-}
-
-Result<bool> walk_path_file(string &path, const WalkFunction &func) {
-  switch (func(path, WalkPath::Type::RegularFile)) {
-    case WalkPath::Action::Abort:
-      return false;
-    case WalkPath::Action::SkipDir:
-    case WalkPath::Action::Continue:
-      break;
-  }
-  return true;
-}
-
-Result<bool> walk_path_symlink(string &path, const WalkFunction &func) {
-  switch (func(path, WalkPath::Type::Symlink)) {
-    case WalkPath::Action::Abort:
-      return false;
-    case WalkPath::Action::SkipDir:
-    case WalkPath::Action::Continue:
-      break;
-  }
-  return true;
-}
-
-Result<bool> walk_path(string &path, const WalkFunction &func) {
-  TRY_RESULT(fd, FileFd::open(path, FileFd::Read));
-  TRY_RESULT(stat, fd.stat());
-
-  if (stat.is_dir_) {
-    return walk_path_dir(path, std::move(fd), func);
-  }
-
-  fd.close();
-
-  if (stat.is_reg_) {
-    return walk_path_file(path, func);
-  }
-
-  if (stat.is_symbolic_link_) {
-    return walk_path_symlink(path, func);
-  }
-
-  return true;
-}
-}  // namespace detail
-
-Status WalkPath::do_run(CSlice path, const detail::WalkFunction &func) {
-  string curr_path;
-  curr_path.reserve(PATH_MAX + 10);
-  curr_path = path.c_str();
-  TRY_STATUS(detail::walk_path(curr_path, func));
-  return Status::OK();
-}
-
-#endif
-
-#if TD_PORT_WINDOWS
-
-Status mkdir(CSlice dir, int32 mode) {
-  TRY_RESULT(wdir, to_wstring(dir));
-  while (!wdir.empty() && (wdir.back() == L'/' || wdir.back() == L'\\')) {
-    wdir.pop_back();
-  }
-  auto status = td::CreateDirectoryFromAppW(wdir.c_str(), nullptr);
-  if (status == 0 && GetLastError() != ERROR_ALREADY_EXISTS) {
-    return OS_ERROR(PSLICE() << "Can't create directory \"" << dir << '"');
-  }
-  return Status::OK();
-}
-
-Status rename(CSlice from, CSlice to) {
-  TRY_RESULT(wfrom, to_wstring(from));
-  TRY_RESULT(wto, to_wstring(to));
-  auto status = td::MoveFileExFromAppW(wfrom.c_str(), wto.c_str(), MOVEFILE_REPLACE_EXISTING);
-  if (status == 0) {
-    return OS_ERROR(PSLICE() << "Can't rename \"" << from << "\" to \"" << to << '\"');
-  }
-  return Status::OK();
-}
-
-Result<string> realpath(CSlice slice, bool ignore_access_denied) {
-  wchar_t buf[MAX_PATH + 1];
-  TRY_RESULT(wslice, to_wstring(slice));
-  auto status = GetFullPathNameW(wslice.c_str(), MAX_PATH, buf, nullptr);
-  string res;
-  if (status == 0) {
-    if (ignore_access_denied && errno == ERROR_ACCESS_DENIED) {
-      res = slice.str();
-    } else {
-      return OS_ERROR(PSLICE() << "GetFullPathNameW failed for \"" << slice << '"');
-    }
-  } else {
-    TRY_RESULT_ASSIGN(res, from_wstring(buf));
-  }
-  if (res.empty()) {
-    return Status::Error("Empty path");
-  }
-  // TODO GetFullPathName doesn't resolve symbolic links
-  if (!slice.empty() && slice.end()[-1] == TD_DIR_SLASH) {
-    if (res.back() != TD_DIR_SLASH) {
-      res += TD_DIR_SLASH;
-    }
-  }
-  return res;
-}
-
-Status chdir(CSlice dir) {
-  TRY_RESULT(wdir, to_wstring(dir));
-  auto res = SetCurrentDirectoryW(wdir.c_str());
-  if (res == 0) {
-    return OS_ERROR(PSLICE() << "Can't change directory to \"" << dir << '"');
-  }
-  return Status::OK();
-}
-
-Status rmdir(CSlice dir) {
-  TRY_RESULT(wdir, to_wstring(dir));
-  int status = td::RemoveDirectoryFromAppW(wdir.c_str());
-  if (!status) {
-    return OS_ERROR(PSLICE() << "Can't delete directory \"" << dir << '"');
-  }
-  return Status::OK();
-}
-
-Status unlink(CSlice path) {
-  TRY_RESULT(wpath, to_wstring(path));
-  int status = td::DeleteFileFromAppW(wpath.c_str());
-  if (!status) {
-    return OS_ERROR(PSLICE() << "Can't unlink \"" << path << '"');
-  }
-  return Status::OK();
-}
-
-CSlice get_temporary_dir() {
-  static bool is_inited = [] {
-    if (temporary_dir.empty()) {
-      wchar_t buf[MAX_PATH + 1];
-      if (GetTempPathW(MAX_PATH, buf) == 0) {
-        auto error = OS_ERROR("GetTempPathW failed");
-        LOG(FATAL) << error;
-      }
-      auto rs = from_wstring(buf);
-      LOG_IF(FATAL, rs.is_error()) << "GetTempPathW failed: " << rs.error();
-      temporary_dir = rs.move_as_ok();
-    }
-    if (temporary_dir.size() > 1 && temporary_dir.back() == TD_DIR_SLASH) {
-      temporary_dir.pop_back();
-    }
-    return true;
-  }();
-  LOG_IF(FATAL, !is_inited) << "Can't find temporary directory";
-  return temporary_dir;
-}
-
-Result<string> mkdtemp(CSlice dir, Slice prefix) {
-  if (dir.empty()) {
-    dir = get_temporary_dir();
-    if (dir.empty()) {
-      return Status::Error("Can't find temporary directory");
-    }
-  }
-
-  TRY_RESULT(dir_real, realpath(dir));
-  CHECK(!dir_real.empty());
-
-  string dir_pattern;
-  dir_pattern.reserve(dir_real.size() + prefix.size() + 7);
-  dir_pattern = dir_real;
-  if (dir_pattern.back() != TD_DIR_SLASH) {
-    dir_pattern += TD_DIR_SLASH;
-  }
-  dir_pattern.append(prefix.begin(), prefix.size());
-
-  for (auto iter = 0; iter < 20; iter++) {
-    auto path = dir_pattern;
-    for (int i = 0; i < 6 + iter / 5; i++) {
-      path += static_cast<char>(Random::fast('a', 'z'));
-    }
-    auto status = mkdir(path);
-    if (status.is_ok()) {
-      return path;
-    }
-  }
-  return Status::Error(PSLICE() << "Can't create temporary directory \"" << dir_pattern << '"');
-}
-
-Result<std::pair<FileFd, string>> mkstemp(CSlice dir) {
-  if (dir.empty()) {
-    dir = get_temporary_dir();
-    if (dir.empty()) {
-      return Status::Error("Can't find temporary directory");
-    }
-  }
-
-  TRY_RESULT(dir_real, realpath(dir));
-  CHECK(!dir_real.empty());
-
-  string file_pattern;
-  file_pattern.reserve(dir_real.size() + 14);
-  file_pattern = dir_real;
-  if (file_pattern.back() != TD_DIR_SLASH) {
-    file_pattern += TD_DIR_SLASH;
-  }
-  file_pattern += "tmp";
-
-  for (auto iter = 0; iter < 20; iter++) {
-    auto path = file_pattern;
-    for (int i = 0; i < 6 + iter / 5; i++) {
-      path += static_cast<char>(Random::fast('a', 'z'));
-    }
-    auto r_file = FileFd::open(path, FileFd::Write | FileFd::Read | FileFd::CreateNew);
-    if (r_file.is_ok()) {
-      return std::make_pair(r_file.move_as_ok(), path);
-    }
-  }
-
-  return Status::Error(PSLICE() << "Can't create temporary file \"" << file_pattern << '"');
-}
-
-static Result<bool> walk_path_dir(const std::wstring &dir_name,
-                                  const std::function<WalkPath::Action(CSlice name, WalkPath::Type type)> &func) {
-  std::wstring name = dir_name + L"\\*";
-  WIN32_FIND_DATA file_data;
-  auto handle =
-      td::FindFirstFileExFromAppW(name.c_str(), FindExInfoStandard, &file_data, FindExSearchNameMatch, nullptr, 0);
-  if (handle == INVALID_HANDLE_VALUE) {
-    return OS_ERROR(PSLICE() << "FindFirstFileEx" << tag("name", from_wstring(name).ok()));
-  }
-
-  SCOPE_EXIT {
-    FindClose(handle);
-  };
-
-  TRY_RESULT(dir_entry_name, from_wstring(dir_name));
-  switch (func(dir_entry_name, WalkPath::Type::EnterDir)) {
-    case WalkPath::Action::Abort:
-      return false;
-    case WalkPath::Action::SkipDir:
-      return true;
-    case WalkPath::Action::Continue:
-      break;
-  }
-
-  while (true) {
-    auto full_name = dir_name + L"\\" + file_data.cFileName;
-    TRY_RESULT(entry_name, from_wstring(full_name));
-    if (file_data.cFileName[0] != '.') {
-      if ((file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0) {
-        TRY_RESULT(is_ok, walk_path_dir(full_name, func));
-        if (!is_ok) {
-          return false;
-        }
-      } else if ((file_data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) == 0) {
-        switch (func(entry_name, WalkPath::Type::RegularFile)) {
-          case WalkPath::Action::Abort:
-            return false;
-          case WalkPath::Action::SkipDir:
-          case WalkPath::Action::Continue:
-            break;
-        }
-      } else if (file_data.dwReserved0 == IO_REPARSE_TAG_SYMLINK) {
-        switch (func(entry_name, WalkPath::Type::Symlink)) {
-          case WalkPath::Action::Abort:
-            return false;
-          case WalkPath::Action::SkipDir:
-          case WalkPath::Action::Continue:
-            break;
-        }
-      } else {
-        // skip other reparse points
-      }
-    }
-    auto status = FindNextFileW(handle, &file_data);
-    if (status == 0) {
-      auto last_error = GetLastError();
-      if (last_error == ERROR_NO_MORE_FILES) {
-        break;
-      }
-      return OS_ERROR("FindNextFileW");
-    }
-  }
-  switch (func(dir_entry_name, WalkPath::Type::ExitDir)) {
-    case WalkPath::Action::Abort:
-      return false;
-    case WalkPath::Action::SkipDir:
-    case WalkPath::Action::Continue:
-      break;
-  }
-  return true;
-}
-
-Status WalkPath::do_run(CSlice path, const std::function<Action(CSlice name, Type)> &func) {
-  TRY_RESULT(wpath, to_wstring(path));
-  Slice path_slice = path;
-  while (!path_slice.empty() && (path_slice.back() == '/' || path_slice.back() == '\\')) {
-    path_slice.remove_suffix(1);
-    wpath.pop_back();
-  }
-  TRY_STATUS(walk_path_dir(wpath, func));
-  return Status::OK();
-}
-
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/path.h b/third-party/td/td/tdutils/td/utils/port/path.h
deleted file mode 100644
index 4448c9739a..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/path.h
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <functional>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-Status mkdir(CSlice dir, int32 mode = 0700) TD_WARN_UNUSED_RESULT;
-
-Status mkpath(CSlice path, int32 mode = 0700) TD_WARN_UNUSED_RESULT;
-
-Status rename(CSlice from, CSlice to) TD_WARN_UNUSED_RESULT;
-
-Result<string> realpath(CSlice slice, bool ignore_access_denied = false) TD_WARN_UNUSED_RESULT;
-
-Status chdir(CSlice dir) TD_WARN_UNUSED_RESULT;
-
-Status rmdir(CSlice dir) TD_WARN_UNUSED_RESULT;
-
-Status unlink(CSlice path) TD_WARN_UNUSED_RESULT;
-
-Status rmrf(CSlice path) TD_WARN_UNUSED_RESULT;
-
-Status set_temporary_dir(CSlice dir) TD_WARN_UNUSED_RESULT;
-
-CSlice get_temporary_dir();
-
-Result<std::pair<FileFd, string>> mkstemp(CSlice dir) TD_WARN_UNUSED_RESULT;
-
-Result<string> mkdtemp(CSlice dir, Slice prefix) TD_WARN_UNUSED_RESULT;
-
-class WalkPath {
- public:
-  enum class Action { Continue, Abort, SkipDir };
-  enum class Type { EnterDir, ExitDir, RegularFile, Symlink };
-
-  template <class F, class R = decltype(std::declval<F>()("", Type::ExitDir))>
-  static TD_WARN_UNUSED_RESULT std::enable_if_t<std::is_same<R, Action>::value, Status> run(CSlice path, F &&func) {
-    return do_run(path, func);
-  }
-  template <class F, class R = decltype(std::declval<F>()("", Type::ExitDir))>
-  static TD_WARN_UNUSED_RESULT std::enable_if_t<!std::is_same<R, Action>::value, Status> run(CSlice path, F &&func) {
-    return do_run(path, [&](CSlice name, Type type) {
-      func(name, type);
-      return Action::Continue;
-    });
-  }
-
- private:
-  static TD_WARN_UNUSED_RESULT Status do_run(CSlice path,
-                                             const std::function<WalkPath::Action(CSlice name, Type type)> &func);
-};
-
-// deprecated interface
-template <class F>
-TD_WARN_UNUSED_RESULT Status walk_path(CSlice path, F &&func) {
-  return WalkPath::run(path, func);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/platform.cpp b/third-party/td/td/tdutils/td/utils/port/platform.cpp
deleted file mode 100644
index bd76280df2..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/platform.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/platform.h"
-
-char disable_linker_warning_about_empty_file_platform_cpp TD_UNUSED;
-
-#if !TD_MSVC
-
-#if TD_DARWIN_UNKNOWN
-#warning "Probably unsupported Apple operating system. Feel free to try to compile"
-#endif
-
-#if TD_UNIX_UNKNOWN
-#warning "Probably unsupported Unix operating system. Feel free to try to compile"
-#endif
-
-#if TD_COMPILER_UNKNOWN
-#warning "Probably unsupported compiler. Feel free to try to compile"
-#endif
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/platform.h b/third-party/td/td/tdutils/td/utils/port/platform.h
deleted file mode 100644
index d6ee70a5d5..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/platform.h
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-// clang-format off
-
-/*** Platform macros ***/
-#if defined(_WIN32) || defined(_WINDOWS) // _WINDOWS is defined by CMake
-  #if defined(__cplusplus_winrt)
-    #define TD_WINRT 1
-  #endif
-  #if defined(__cplusplus_cli)
-    #define TD_CLI 1
-  #endif
-  #define TD_WINDOWS 1
-#elif defined(__APPLE__)
-  #include "TargetConditionals.h"
-  #if TARGET_OS_IPHONE
-    // iOS/iPadOS/watchOS/tvOS
-    #if TARGET_OS_IOS
-      #define TD_DARWIN_IOS 1
-    #elif TARGET_OS_TV
-      #define TD_DARWIN_TV_OS 1
-    #elif TARGET_OS_VISION
-      #define TD_DARWIN_VISION_OS 1
-    #elif TARGET_OS_WATCH
-      #define TD_DARWIN_WATCH_OS 1
-    #else
-      #define TD_DARWIN_UNKNOWN 1
-    #endif
-  #elif TARGET_OS_MAC
-    // Other kinds of macOS
-    #define TD_DARWIN_MAC 1
-  #else
-    #define TD_DARWIN_UNKNOWN 1
-  #endif
-  #define TD_DARWIN 1
-#elif defined(ANDROID) || defined(__ANDROID__)
-  #define TD_ANDROID 1
-#elif defined(TIZEN_DEPRECATION)
-  #define TD_TIZEN 1
-#elif defined(__linux__)
-  #define TD_LINUX 1
-#elif defined(__FreeBSD__)
-  #define TD_FREEBSD 1
-#elif defined(__OpenBSD__)
-  #define TD_OPENBSD 1
-#elif defined(__NetBSD__)
-  #define TD_NETBSD 1
-#elif defined(__CYGWIN__)
-  #define TD_CYGWIN 1
-#elif defined(__EMSCRIPTEN__)
-  #define TD_EMSCRIPTEN 1
-#elif defined(__sun)
-  #define TD_SOLARIS 1
-  // TD_ILLUMOS can be already defined by CMake
-#elif defined(__unix__)  // all unices not caught above
-  #define TD_UNIX_UNKNOWN 1
-  #define TD_CYGWIN 1
-#else
-  #error "Probably unsupported platform. Feel free to remove the error and try to recompile"
-#endif
-
-#if defined(__ICC) || defined(__INTEL_COMPILER)
-  #define TD_INTEL 1
-#elif defined(__clang__)
-  #define TD_CLANG 1
-#elif defined(__GNUC__) || defined(__GNUG__)
-  #define TD_GCC 1
-#elif defined(_MSC_VER)
-  #define TD_MSVC 1
-#else
-  #define TD_COMPILER_UNKNOWN 1
-#endif
-
-#if TD_GCC || TD_CLANG || TD_INTEL
-  #define TD_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
-  #define TD_ATTRIBUTE_FORMAT_PRINTF(from, to) __attribute__((format(printf, from, to)))
-#else
-  #define TD_WARN_UNUSED_RESULT
-  #define TD_ATTRIBUTE_FORMAT_PRINTF(from, to)
-#endif
-
-#if TD_MSVC
-  #define TD_UNUSED __pragma(warning(suppress : 4100))
-#elif TD_CLANG || TD_GCC || TD_INTEL
-  #define TD_UNUSED __attribute__((unused))
-#else
-  #define TD_UNUSED
-#endif
-
-#define TD_HAVE_ATOMIC_SHARED_PTR 1
-
-// No atomic operations on std::shared_ptr in libstdc++ before 5.0
-// see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57250
-#ifdef __GLIBCXX__
-  #undef TD_HAVE_ATOMIC_SHARED_PTR
-#endif
-
-// Also, no atomic operations on std::shared_ptr when clang __has_feature(cxx_atomic) is defined and zero
-#if defined(__has_feature)
-  #if !__has_feature(cxx_atomic)
-    #undef TD_HAVE_ATOMIC_SHARED_PTR
-  #endif
-#endif
-
-#ifdef TD_HAVE_ATOMIC_SHARED_PTR // unfortunately we can't check for __GLIBCXX__ here, it is not defined yet
-  #undef TD_HAVE_ATOMIC_SHARED_PTR
-#endif
-
-#define TD_CONCURRENCY_PAD 128
-
-#if !TD_WINDOWS && defined(__SIZEOF_INT128__)
-#define TD_HAVE_INT128 1
-#endif
-
-// clang-format on
diff --git a/third-party/td/td/tdutils/td/utils/port/rlimit.cpp b/third-party/td/td/tdutils/td/utils/port/rlimit.cpp
deleted file mode 100644
index 658e1c5dd7..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/rlimit.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/rlimit.h"
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/misc.h"
-
-#if TD_PORT_POSIX
-#include <sys/resource.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#endif
-
-namespace td {
-
-#if TD_PORT_POSIX
-static int get_resource(ResourceLimitType type) {
-  switch (type) {
-    case ResourceLimitType::NoFile:
-      return RLIMIT_NOFILE;
-    default:
-      UNREACHABLE();
-      return -1;
-  }
-}
-#endif
-
-Status set_resource_limit(ResourceLimitType type, uint64 value, uint64 max_value) {
-#if TD_PORT_POSIX
-  if (max_value != 0 && value > max_value) {
-    return Status::Error("New resource limit value must not be bigger than max_value");
-  }
-
-  int resource = get_resource(type);
-
-  rlimit rlim;
-  if (getrlimit(resource, &rlim) == -1) {
-    return OS_ERROR("Failed to get current resource limit");
-  }
-
-  TRY_RESULT(new_value, narrow_cast_safe<rlim_t>(value));
-  TRY_RESULT(new_max_value, narrow_cast_safe<rlim_t>(max_value));
-  if (new_max_value) {
-    rlim.rlim_max = new_max_value;
-  } else if (rlim.rlim_max < new_value) {
-    rlim.rlim_max = new_value;
-  }
-  rlim.rlim_cur = new_value;
-
-  if (setrlimit(resource, &rlim) < 0) {
-    return OS_ERROR("Failed to set resource limit");
-  }
-  return Status::OK();
-#elif TD_PORT_WINDOWS
-  return Status::OK();  // Windows has no limits
-#endif
-}
-
-Status set_maximize_resource_limit(ResourceLimitType type, uint64 value) {
-#if TD_PORT_POSIX
-  int resource = get_resource(type);
-
-  rlimit rlim;
-  if (getrlimit(resource, &rlim) == -1) {
-    return OS_ERROR("Failed to get current resource limit");
-  }
-
-  TRY_RESULT(new_value, narrow_cast_safe<rlim_t>(value));
-  if (rlim.rlim_max < new_value) {
-    // trying to increase rlim_max
-    rlimit new_rlim;
-    new_rlim.rlim_cur = new_value;
-    new_rlim.rlim_max = new_value;
-    if (setrlimit(resource, &new_rlim) >= 0) {
-      return Status::OK();
-    }
-
-    // do not increase rlim_max if have no rights
-    new_value = rlim.rlim_max;
-  }
-  rlim.rlim_cur = new_value;
-
-  if (setrlimit(resource, &rlim) < 0) {
-    return OS_ERROR("Failed to set resource limit");
-  }
-  return Status::OK();
-#elif TD_PORT_WINDOWS
-  return Status::OK();  // Windows has no limits
-#endif
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/rlimit.h b/third-party/td/td/tdutils/td/utils/port/rlimit.h
deleted file mode 100644
index cf53f7b8c4..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/rlimit.h
+++ /dev/null
@@ -1,20 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-enum class ResourceLimitType { NoFile };
-
-Status set_resource_limit(ResourceLimitType type, uint64 value, uint64 max_value = 0);
-
-Status set_maximize_resource_limit(ResourceLimitType type, uint64 value);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/signals.cpp b/third-party/td/td/tdutils/td/utils/port/signals.cpp
deleted file mode 100644
index b8375a2155..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/signals.cpp
+++ /dev/null
@@ -1,344 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/signals.h"
-
-#include "td/utils/port/config.h"
-#include "td/utils/port/stacktrace.h"
-#include "td/utils/port/StdStreams.h"
-
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-
-#if TD_PORT_POSIX
-#include <signal.h>
-#include <sys/mman.h>
-#include <unistd.h>
-#endif
-#if TD_PORT_WINDOWS
-#include <csignal>
-#endif
-
-#include <cerrno>
-#include <cstdint>
-#include <cstdlib>
-#include <cstring>
-#include <ctime>
-#include <limits>
-
-namespace td {
-
-#if TD_PORT_POSIX && !TD_DARWIN_TV_OS && !TD_DARWIN_WATCH_OS
-static Status protect_memory(void *addr, size_t len) {
-  if (mprotect(addr, len, PROT_NONE) != 0) {
-    return OS_ERROR("mprotect failed");
-  }
-  return Status::OK();
-}
-#endif
-
-Status setup_signals_alt_stack() {
-#if TD_PORT_POSIX && !TD_DARWIN_TV_OS && !TD_DARWIN_WATCH_OS
-  auto page_size = getpagesize();
-  auto stack_size = (MINSIGSTKSZ + 16 * page_size - 1) / page_size * page_size;
-
-  void *stack = mmap(nullptr, stack_size + 2 * page_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
-  if (stack == MAP_FAILED) {
-    return OS_ERROR("Mmap failed");
-  }
-
-  TRY_STATUS(protect_memory(stack, page_size));
-  TRY_STATUS(protect_memory(static_cast<char *>(stack) + stack_size + page_size, page_size));
-
-  stack_t signal_stack;
-  signal_stack.ss_sp = static_cast<char *>(stack) + page_size;
-  signal_stack.ss_size = stack_size;
-  signal_stack.ss_flags = 0;
-
-  if (sigaltstack(&signal_stack, nullptr) != 0) {
-    return OS_ERROR("sigaltstack failed");
-  }
-#endif
-  return Status::OK();
-}
-
-#if TD_PORT_POSIX
-static void set_handler(struct sigaction &act, decltype(act.sa_handler) handler) {
-  act.sa_handler = handler;
-}
-static void set_handler(struct sigaction &act, decltype(act.sa_sigaction) handler) {
-  act.sa_sigaction = handler;
-  act.sa_flags |= SA_SIGINFO;
-}
-template <class F>
-static Status set_signal_handler_impl(vector<int> &&signals, F func) {
-  struct sigaction act;
-  std::memset(&act, '\0', sizeof(act));
-
-  sigemptyset(&act.sa_mask);
-  for (auto signal : signals) {
-    sigaddset(&act.sa_mask, signal);
-  }
-  act.sa_flags = SA_RESTART | SA_ONSTACK;
-  set_handler(act, func);
-
-  for (auto signal : signals) {
-    if (sigaction(signal, &act, nullptr) != 0) {
-      return OS_ERROR("sigaction failed");
-    }
-  }
-  return Status::OK();
-}
-
-static vector<int> get_native_signals(SignalType type) {
-  switch (type) {
-    case SignalType::Abort:
-      return {SIGABRT, SIGXCPU, SIGXFSZ};
-    case SignalType::Error:
-      return {SIGILL, SIGFPE, SIGBUS, SIGSEGV, SIGSYS};
-    case SignalType::Quit:
-      return {SIGINT, SIGTERM, SIGQUIT};
-    case SignalType::Pipe:
-      return {SIGPIPE};
-    case SignalType::HangUp:
-      return {SIGHUP};
-    case SignalType::User:
-      return {SIGUSR1, SIGUSR2};
-    case SignalType::Other:
-      return {SIGTRAP, SIGALRM, SIGVTALRM, SIGPROF, SIGTSTP, SIGTTIN, SIGTTOU};
-    default:
-      return {};
-  }
-}
-#elif TD_PORT_WINDOWS
-using signal_handler = void (*)(int sig);
-static signal_handler signal_handlers[NSIG] = {};
-
-static void signal_handler_func(int sig) {
-  std::signal(sig, signal_handler_func);
-  auto handler = signal_handlers[sig];
-  handler(sig);
-}
-
-static Status set_signal_handler_impl(vector<int> &&signals, void (*func)(int sig)) {
-  for (auto signal : signals) {
-    CHECK(0 <= signal && signal < NSIG);
-    if (func != SIG_IGN && func != SIG_DFL) {
-      signal_handlers[signal] = func;
-      func = signal_handler_func;
-    }
-    if (std::signal(signal, func) == SIG_ERR) {
-      return Status::Error("Failed to set signal handler");
-    }
-  }
-  return Status::OK();
-}
-
-static vector<int> get_native_signals(SignalType type) {
-  switch (type) {
-    case SignalType::Abort:
-      return {SIGABRT};
-    case SignalType::Error:
-      return {SIGILL, SIGFPE, SIGSEGV};
-    case SignalType::Quit:
-      return {SIGINT, SIGTERM};
-    case SignalType::Pipe:
-      return {};
-    case SignalType::HangUp:
-      return {};
-    case SignalType::User:
-      return {};
-    case SignalType::Other:
-      return {};
-    default:
-      return {};
-  }
-}
-#endif
-
-Status set_signal_handler(SignalType type, void (*func)(int sig)) {
-  return set_signal_handler_impl(get_native_signals(type), func == nullptr ? SIG_DFL : func);
-}
-
-using extended_signal_handler = void (*)(int sig, void *addr);
-static extended_signal_handler extended_signal_handlers[NSIG] = {};
-
-#if TD_PORT_POSIX
-static void siginfo_handler(int signum, siginfo_t *info, void *data) {
-  auto handler = extended_signal_handlers[signum];
-  handler(signum, info->si_addr);
-}
-#elif TD_PORT_WINDOWS
-static void siginfo_handler(int signum) {
-  auto handler = extended_signal_handlers[signum];
-  handler(signum, nullptr);
-}
-#endif
-
-Status set_extended_signal_handler(SignalType type, extended_signal_handler func) {
-  CHECK(func != nullptr);
-  auto signals = get_native_signals(type);
-  for (auto signal : signals) {
-    if (0 <= signal && signal < NSIG) {
-      extended_signal_handlers[signal] = func;
-    } else {
-      UNREACHABLE();
-    }
-  }
-  return set_signal_handler_impl(std::move(signals), siginfo_handler);
-}
-
-Status set_real_time_signal_handler(int real_time_signal_number, void (*func)(int)) {
-#ifdef SIGRTMIN
-  CHECK(SIGRTMIN + real_time_signal_number <= SIGRTMAX);
-  return set_signal_handler_impl({SIGRTMIN + real_time_signal_number}, func == nullptr ? SIG_DFL : func);
-#else
-  return Status::OK();
-#endif
-}
-
-Status ignore_signal(SignalType type) {
-  return set_signal_handler_impl(get_native_signals(type), SIG_IGN);
-}
-
-static void signal_safe_append_int(char **s, Slice name, int number) {
-  if (number < 0) {
-    number = std::numeric_limits<int>::max();
-  }
-
-  *--*s = ' ';
-  *--*s = ']';
-
-  do {
-    *--*s = static_cast<char>(number % 10 + '0');
-    number /= 10;
-  } while (number > 0);
-
-  *--*s = ' ';
-
-  for (auto pos = static_cast<int>(name.size()) - 1; pos >= 0; pos--) {
-    *--*s = name[pos];
-  }
-
-  *--*s = '[';
-}
-
-static void signal_safe_write_data(Slice data) {
-#if TD_PORT_POSIX
-  while (!data.empty()) {
-    auto res = write(2, data.begin(), data.size());
-    if (res < 0 && errno == EINTR) {
-      continue;
-    }
-    if (res <= 0) {
-      break;
-    }
-
-    if (res > 0) {
-      data.remove_prefix(res);
-    }
-  }
-#elif TD_PORT_WINDOWS
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-  HANDLE stderr_handle = GetStdHandle(STD_ERROR_HANDLE);
-  DWORD bytes_written;
-  WriteFile(stderr_handle, data.data(), static_cast<DWORD>(data.size()), &bytes_written, nullptr);
-#else
-// there is no stderr
-#endif
-#endif
-}
-
-static int get_process_id() {
-#if TD_PORT_POSIX
-  return getpid();
-#elif TD_PORT_WINDOWS
-  return GetCurrentProcessId();
-#endif
-}
-
-void signal_safe_write(Slice data, bool add_header) {
-  auto old_errno = errno;
-
-  if (add_header) {
-    constexpr size_t HEADER_BUF_SIZE = 100;
-    char header[HEADER_BUF_SIZE];
-    char *header_end = header + HEADER_BUF_SIZE;
-    char *header_begin = header_end;
-
-    signal_safe_append_int(&header_begin, "time", static_cast<int>(std::time(nullptr)));
-    signal_safe_append_int(&header_begin, "pid", get_process_id());
-
-    signal_safe_write_data(Slice(header_begin, header_end));
-  }
-
-  signal_safe_write_data(data);
-
-  errno = old_errno;
-}
-
-void signal_safe_write_signal_number(int sig, bool add_header) {
-  char buf[100];
-  char *end = buf + sizeof(buf);
-  char *ptr = end;
-  *--ptr = '\n';
-  do {
-    *--ptr = static_cast<char>(sig % 10 + '0');
-    sig /= 10;
-  } while (sig != 0);
-
-  ptr -= 8;
-  std::memcpy(ptr, "Signal: ", 8);
-  signal_safe_write(Slice(ptr, end), add_header);
-}
-
-void signal_safe_write_pointer(void *p, bool add_header) {
-  auto addr = reinterpret_cast<std::uintptr_t>(p);
-  char buf[100];
-  char *end = buf + sizeof(buf);
-  char *ptr = end;
-  *--ptr = '\n';
-  do {
-    *--ptr = format::hex_digit(addr % 16);
-    addr /= 16;
-  } while (addr != 0);
-  *--ptr = 'x';
-  *--ptr = '0';
-  ptr -= 9;
-  std::memcpy(ptr, "Address: ", 9);
-  signal_safe_write(Slice(ptr, end), add_header);
-}
-
-static void block_stdin() {
-#if TD_PORT_POSIX
-  Stdin().get_native_fd().set_is_blocking(true).ignore();
-#endif
-}
-
-static void default_failure_signal_handler(int sig) {
-  Stacktrace::init();
-  signal_safe_write_signal_number(sig);
-
-  Stacktrace::PrintOptions options;
-  options.use_gdb = true;
-  Stacktrace::print_to_stderr(options);
-
-  block_stdin();
-  _Exit(EXIT_FAILURE);
-}
-
-Status set_default_failure_signal_handler() {
-#if TD_PORT_POSIX
-  Stdin();  // init static variables before atexit
-  std::atexit(block_stdin);
-#endif
-  TRY_STATUS(setup_signals_alt_stack());
-  TRY_STATUS(set_signal_handler(SignalType::Abort, default_failure_signal_handler));
-  TRY_STATUS(set_signal_handler(SignalType::Error, default_failure_signal_handler));
-  return Status::OK();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/signals.h b/third-party/td/td/tdutils/td/utils/port/signals.h
deleted file mode 100644
index d01b712b1c..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/signals.h
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-Status setup_signals_alt_stack() TD_WARN_UNUSED_RESULT;
-
-enum class SignalType { Abort, Error, Quit, Pipe, HangUp, User, Other };
-
-Status set_signal_handler(SignalType type, void (*func)(int sig)) TD_WARN_UNUSED_RESULT;
-
-Status set_extended_signal_handler(SignalType type, void (*func)(int sig, void *addr)) TD_WARN_UNUSED_RESULT;
-
-Status set_real_time_signal_handler(int real_time_signal_number, void (*func)(int sig)) TD_WARN_UNUSED_RESULT;
-
-Status ignore_signal(SignalType type) TD_WARN_UNUSED_RESULT;
-
-// writes data to the standard error stream in a signal-safe way
-void signal_safe_write(Slice data, bool add_header = true);
-
-void signal_safe_write_signal_number(int sig, bool add_header = true);
-
-void signal_safe_write_pointer(void *p, bool add_header = true);
-
-Status set_default_failure_signal_handler();
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/sleep.cpp b/third-party/td/td/tdutils/td/utils/port/sleep.cpp
deleted file mode 100644
index 73fa415eb1..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/sleep.cpp
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/sleep.h"
-
-#include "td/utils/port/config.h"
-
-#if TD_PORT_WINDOWS
-#include "td/utils/port/Clocks.h"
-#endif
-
-#if TD_PORT_POSIX
-#if _POSIX_C_SOURCE >= 199309L
-#include <time.h>
-#else
-#include <unistd.h>
-#endif
-#endif
-
-namespace td {
-
-void usleep_for(int32 microseconds) {
-#if TD_PORT_WINDOWS
-  if (microseconds < 2000) {
-    auto end_time = Clocks::monotonic() + microseconds * 1e-6;
-    do {
-      SwitchToThread();
-    } while (Clocks::monotonic() < end_time);
-  } else {
-    int32 milliseconds = microseconds / 1000 + (microseconds % 1000 ? 1 : 0);
-    Sleep(milliseconds);
-  }
-#else
-#if _POSIX_C_SOURCE >= 199309L
-  timespec ts;
-  ts.tv_sec = microseconds / 1000000;
-  ts.tv_nsec = (microseconds % 1000000) * 1000;
-  nanosleep(&ts, nullptr);
-#else
-  usleep(microseconds);
-#endif
-#endif
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/sleep.h b/third-party/td/td/tdutils/td/utils/port/sleep.h
deleted file mode 100644
index 3608ace521..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/sleep.h
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-void usleep_for(int32 microseconds);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/stacktrace.cpp b/third-party/td/td/tdutils/td/utils/port/stacktrace.cpp
deleted file mode 100644
index 485aa6ed97..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/stacktrace.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/stacktrace.h"
-
-#include "td/utils/port/signals.h"
-
-#if __GLIBC__
-#include <execinfo.h>
-#endif
-
-#if TD_LINUX || TD_FREEBSD
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#if TD_LINUX
-#include <sys/prctl.h>
-#endif
-#endif
-
-namespace td {
-
-namespace {
-
-void print_backtrace() {
-#if TD_PORT_WINDOWS
-  void *buffer[128];
-  USHORT nptrs = CaptureStackBackTrace(0, 128, buffer, nullptr);
-#elif __GLIBC__
-  void *buffer[128];
-  int nptrs = backtrace(buffer, 128);
-#else
-  return;
-#endif
-
-  signal_safe_write("------- Stack Backtrace -------\n", false);
-#if TD_PORT_WINDOWS
-  for (USHORT i = 0; i < nptrs; i++) {
-    signal_safe_write_pointer(buffer[i], false);
-  }
-#elif __GLIBC__
-  backtrace_symbols_fd(buffer, nptrs, 2);
-#endif
-  signal_safe_write("-------------------------------\n", false);
-}
-
-void print_backtrace_gdb() {
-#if TD_LINUX || TD_FREEBSD
-  char pid_buf[30];
-  char *pid_buf_begin = pid_buf + sizeof(pid_buf);
-  pid_t pid = getpid();
-  *--pid_buf_begin = '\0';
-  do {
-    *--pid_buf_begin = static_cast<char>(pid % 10 + '0');
-    pid /= 10;
-  } while (pid > 0);
-
-  char name_buf[512];
-  ssize_t res = readlink("/proc/self/exe", name_buf, 511);  // TODO works only under Linux
-  if (res >= 0) {
-    name_buf[res] = 0;
-
-#if TD_LINUX
-#if defined(PR_SET_DUMPABLE)
-    if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) < 0) {
-      signal_safe_write("Can't set dumpable\n");
-      return;
-    }
-#endif
-#if defined(PR_SET_PTRACER)
-    // We can't use event fd because we are in a signal handler
-    int fds[2];
-    bool need_set_ptracer = true;
-    if (pipe(fds) < 0) {
-      need_set_ptracer = false;
-      signal_safe_write("Can't create a pipe\n");
-    }
-#endif
-#endif
-
-    int child_pid = fork();
-    if (child_pid < 0) {
-      signal_safe_write("Can't fork() to run gdb\n");
-      return;
-    }
-    if (!child_pid) {
-#if TD_LINUX && defined(PR_SET_PTRACER)
-      if (need_set_ptracer) {
-        char c;
-        if (read(fds[0], &c, 1) < 0) {
-          signal_safe_write("Failed to read from pipe\n");
-        }
-      }
-#endif
-      dup2(2, 1);  // redirect output to stderr
-      execlp("gdb", "gdb", "--batch", "-n", "-ex", "thread", "-ex", "thread apply all bt full", name_buf, pid_buf_begin,
-             nullptr);
-      return;
-    } else {
-#if TD_LINUX && defined(PR_SET_PTRACER)
-      if (need_set_ptracer) {
-        if (prctl(PR_SET_PTRACER, child_pid, 0, 0, 0) < 0) {
-          signal_safe_write("Can't set ptracer\n");
-        }
-        if (write(fds[1], "a", 1) != 1) {
-          signal_safe_write("Can't write to pipe\n");
-        }
-      }
-#endif
-      waitpid(child_pid, nullptr, 0);
-    }
-  } else {
-    signal_safe_write("Can't get name of executable file to pass to gdb\n");
-  }
-#endif
-}
-
-}  // namespace
-
-void Stacktrace::print_to_stderr(const PrintOptions &options) {
-  print_backtrace();
-  if (options.use_gdb) {
-    print_backtrace_gdb();
-  }
-}
-
-void Stacktrace::init() {
-#if __GLIBC__
-  // backtrace needs to be called once to ensure that next calls are async-signal-safe
-  void *buffer[1];
-  backtrace(buffer, 1);
-#endif
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/stacktrace.h b/third-party/td/td/tdutils/td/utils/port/stacktrace.h
deleted file mode 100644
index 312c8e59ce..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/stacktrace.h
+++ /dev/null
@@ -1,23 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-namespace td {
-
-class Stacktrace {
- public:
-  struct PrintOptions {
-    bool use_gdb = false;
-    PrintOptions() {
-    }
-  };
-  static void print_to_stderr(const PrintOptions &options = PrintOptions());
-
-  static void init();
-};
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/thread.h b/third-party/td/td/tdutils/td/utils/port/thread.h
deleted file mode 100644
index 96cbb9ae6c..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/thread.h
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/port/detail/ThreadPthread.h"
-#include "td/utils/port/detail/ThreadStl.h"
-
-namespace td {
-
-// clang-format off
-
-#if TD_THREAD_PTHREAD
-  using thread = detail::ThreadPthread;
-  namespace this_thread = detail::this_thread_pthread;
-#elif TD_THREAD_STL
-  using thread = detail::ThreadStl;
-  namespace this_thread = detail::this_thread_stl;
-#elif TD_THREAD_UNSUPPORTED
-#else
-  #error "Thread's implementation is not defined"
-#endif
-
-// clang-format on
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/thread_local.cpp b/third-party/td/td/tdutils/td/utils/port/thread_local.cpp
deleted file mode 100644
index 5984a68ed9..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/thread_local.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/thread_local.h"
-
-namespace td {
-
-namespace detail {
-
-static TD_THREAD_LOCAL int32 thread_id_;
-static TD_THREAD_LOCAL std::vector<unique_ptr<Destructor>> *thread_local_destructors;
-
-void add_thread_local_destructor(unique_ptr<Destructor> destructor) {
-  if (thread_local_destructors == nullptr) {
-    thread_local_destructors = new std::vector<unique_ptr<Destructor>>();
-  }
-  thread_local_destructors->push_back(std::move(destructor));
-}
-
-}  // namespace detail
-
-void clear_thread_locals() {
-  // ensure that no destructors were added during destructors invocation
-  auto to_delete = detail::thread_local_destructors;
-  detail::thread_local_destructors = nullptr;
-  delete to_delete;
-  CHECK(detail::thread_local_destructors == nullptr);
-}
-
-void set_thread_id(int32 id) {
-  detail::thread_id_ = id;
-}
-
-int32 get_thread_id() {
-  return detail::thread_id_;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/thread_local.h b/third-party/td/td/tdutils/td/utils/port/thread_local.h
deleted file mode 100644
index 288bc8ea20..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/thread_local.h
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Destructor.h"
-
-#include <memory>
-#include <utility>
-
-namespace td {
-
-// clang-format off
-#if TD_GCC || TD_CLANG
-  #define TD_THREAD_LOCAL __thread
-#elif TD_INTEL || TD_MSVC
-  #define TD_THREAD_LOCAL thread_local
-#else
-  #warning "TD_THREAD_LOCAL is not defined, trying 'thread_local'"
-  #define TD_THREAD_LOCAL thread_local
-#endif
-// clang-format on
-
-// If raw_ptr is not nullptr, allocate T as in std::make_unique<T>(args...) and store pointer into raw_ptr
-template <class T, class P, class... ArgsT>
-bool init_thread_local(P &raw_ptr, ArgsT &&...args);
-
-// Destroy all thread locals, and store nullptr into corresponding pointers
-void clear_thread_locals();
-
-void set_thread_id(int32 id);
-
-int32 get_thread_id();
-
-namespace detail {
-void add_thread_local_destructor(unique_ptr<Destructor> destructor);
-
-template <class T, class P, class... ArgsT>
-void do_init_thread_local(P &raw_ptr, ArgsT &&...args) {
-  auto ptr = std::make_unique<T>(std::forward<ArgsT>(args)...);
-  raw_ptr = ptr.get();
-
-  detail::add_thread_local_destructor(create_destructor([ptr = std::move(ptr), &raw_ptr]() mutable {
-    ptr.reset();
-    raw_ptr = nullptr;
-  }));
-}
-}  // namespace detail
-
-template <class T, class P, class... ArgsT>
-bool init_thread_local(P &raw_ptr, ArgsT &&...args) {
-  if (likely(raw_ptr != nullptr)) {
-    return false;
-  }
-  detail::do_init_thread_local<T>(raw_ptr, std::forward<ArgsT>(args)...);
-  return true;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/uname.cpp b/third-party/td/td/tdutils/td/utils/port/uname.cpp
deleted file mode 100644
index 97a797a968..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/uname.cpp
+++ /dev/null
@@ -1,291 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/uname.h"
-
-#include "td/utils/port/config.h"
-
-#include "td/utils/common.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/SliceBuilder.h"
-
-#if TD_PORT_POSIX
-
-#include <cstring>
-
-#if TD_ANDROID
-#include <sys/system_properties.h>
-#elif TD_EMSCRIPTEN
-#include <cstdlib>
-
-#include <emscripten.h>
-#else
-#if TD_DARWIN
-#include <sys/sysctl.h>
-#include <sys/types.h>
-#endif
-#include <sys/utsname.h>
-#endif
-
-#endif
-
-namespace td {
-
-#if TD_DARWIN || TD_LINUX
-static string read_os_name(CSlice os_version_file_path, CSlice prefix, CSlice suffix) {
-  auto r_stat = stat(os_version_file_path);
-  if (r_stat.is_ok() && r_stat.ok().is_reg_ && r_stat.ok().size_ < (1 << 16)) {
-    auto r_file = read_file_str(os_version_file_path, r_stat.ok().size_);
-    if (r_file.is_ok()) {
-      auto begin_pos = r_file.ok().find(prefix.c_str());
-      if (begin_pos != string::npos) {
-        begin_pos += prefix.size();
-        auto end_pos = r_file.ok().find(suffix.c_str(), begin_pos);
-        if (end_pos != string::npos) {
-          auto os_version = trim(r_file.ok().substr(begin_pos, end_pos - begin_pos));
-          if (os_version.find('\n') == string::npos) {
-            return os_version;
-          }
-        }
-      }
-    }
-  }
-  return string();
-}
-#endif
-
-Slice get_operating_system_version() {
-  static string result = []() -> string {
-#if TD_DARWIN
-    char version[256];
-    size_t size = sizeof(version);
-    string os_version;
-    if (sysctlbyname("kern.osproductversion", version, &size, nullptr, 0) == 0) {
-      os_version = trim(string(version, size));
-    }
-    if (os_version.empty()) {
-      os_version = read_os_name("/System/Library/CoreServices/SystemVersion.plist",
-                                "<key>ProductUserVisibleVersion</key>\n\t<string>", "</string>\n");
-    }
-    if (!os_version.empty()) {
-      os_version = " " + os_version;
-    }
-
-#if TD_DARWIN_IOS
-    return "iOS" + os_version;
-#elif TD_DARWIN_TV_OS
-    return "tvOS" + os_version;
-#elif TD_DARWIN_VISION_OS
-    return "visionOS" + os_version;
-#elif TD_DARWIN_WATCH_OS
-    return "watchOS" + os_version;
-#elif TD_DARWIN_MAC
-    return "macOS" + os_version;
-#else
-    return "Darwin" + os_version;
-#endif
-#elif TD_PORT_POSIX
-#if TD_ANDROID
-    char version[PROP_VALUE_MAX + 1];
-    int length = __system_property_get("ro.build.version.release", version);
-    if (length > 0) {
-      return "Android " + string(version, length);
-    }
-#elif TD_EMSCRIPTEN
-    // clang-format off
-    char *os_name_js = (char*)EM_ASM_INT(({
-      function detectOsName() {
-        if (typeof process === 'object' && typeof process.platform === 'string') { // Node.js
-           switch (process.platform) {
-             case 'aix':
-               return 'IBM AIX';
-             case 'android':
-               return 'Android';
-             case 'darwin':
-               return 'macOS';
-             case 'freebsd':
-               return 'FreeBSD';
-             case 'linux':
-               return 'Linux';
-             case 'openbsd':
-               return 'OpenBSD';
-             case 'sunos':
-               return 'SunOS';
-             case 'win32':
-               return 'Windows';
-             case 'darwin':
-               return 'macOS';
-             default:
-               return 'Node.js';
-          }
-        }
-
-        var userAgent = 'Unknown';
-        if (typeof window === 'object') { // Web
-          userAgent = window.navigator.userAgent;
-        } else if (typeof importScripts === 'function') { // Web Worker
-          userAgent = navigator.userAgent;
-        }
-
-        var match = /(Mac OS|Mac OS X|MacPPC|MacIntel|Mac_PowerPC|Macintosh) ([._0-9]+)/.exec(userAgent);
-        if (match !== null) {
-          return 'macOS ' + match[2].replace('_', '.');
-        }
-
-        match = /Android [._0-9]+/.exec(userAgent);
-        if (match !== null) {
-          return match[0].replace('_', '.');
-        }
-
-        if (/(iPhone|iPad|iPod)/.test(userAgent)) {
-          match = /OS ([._0-9]+)/.exec(userAgent);
-          if (match !== null) {
-            return 'iOS ' + match[1].replace('_', '.');
-          }
-          return 'iOS';
-        }
-
-        var clientStrings = [
-          {s:'Windows 11', r:/(Windows 11|Windows NT 11)/},
-          // there is no way to distinguish Windows 10 from newer versions, so report it as just Windows.
-          // {s:'Windows 10 or later', r:/(Windows 10|Windows NT 10)/},
-          {s:'Windows 8.1', r:/(Windows 8.1|Windows NT 6.3)/},
-          {s:'Windows 8', r:/(Windows 8|Windows NT 6.2)/},
-          {s:'Windows 7', r:/(Windows 7|Windows NT 6.1)/},
-          {s:'Windows Vista', r:/Windows NT 6.0/},
-          {s:'Windows Server 2003', r:/Windows NT 5.2/},
-          {s:'Windows XP', r:/(Windows XP|Windows NT 5.1)/},
-          {s:'Windows', r:/Windows/},
-          {s:'Android', r:/Android/},
-          {s:'FreeBSD', r:/FreeBSD/},
-          {s:'OpenBSD', r:/OpenBSD/},
-          {s:'Chrome OS', r:/CrOS/},
-          {s:'Linux', r:/(Linux|X11)/},
-          {s:'macOS', r:/(Mac OS|MacPPC|MacIntel|Mac_PowerPC|Macintosh)/},
-          {s:'QNX', r:/QNX/},
-          {s:'BeOS', r:/BeOS/}
-        ];
-        for (var id in clientStrings) {
-          var cs = clientStrings[id];
-          if (cs.r.test(userAgent)) {
-            return cs.s;
-          }
-        }
-        return 'Emscripten';
-      }
-
-      var os_name = detectOsName();
-      var length = lengthBytesUTF8(os_name) + 1;
-      var result = _malloc(length);
-      stringToUTF8(os_name, result, length);
-      return result;
-    }));
-    // clang-format on
-    string os_name(os_name_js);
-    std::free(os_name_js);
-
-    return os_name;
-#else
-#if TD_LINUX
-    auto os_name = read_os_name("/etc/os-release", "PRETTY_NAME=\"", "\"\n");
-    if (!os_name.empty()) {
-      return os_name;
-    }
-#endif
-
-    struct utsname name;
-    int err = uname(&name);
-    if (err == 0) {
-      auto os_name = trim(PSTRING() << Slice(name.sysname, std::strlen(name.sysname)) << " "
-                                    << Slice(name.release, std::strlen(name.release)));
-      if (!os_name.empty()) {
-        return os_name;
-      }
-    }
-#endif
-    LOG(ERROR) << "Failed to identify OS name; use generic one";
-
-#if TD_ANDROID
-    return "Android";
-#elif TD_TIZEN
-    return "Tizen";
-#elif TD_LINUX
-    return "Linux";
-#elif TD_FREEBSD
-    return "FreeBSD";
-#elif TD_OPENBSD
-    return "OpenBSD";
-#elif TD_NETBSD
-    return "NetBSD";
-#elif TD_CYGWIN
-    return "Cygwin";
-#else
-    return "Unix";
-#endif
-
-#else
-
-#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
-    auto handle = GetModuleHandle(L"ntdll.dll");
-    if (handle != nullptr) {
-      using RtlGetVersionPtr = LONG(WINAPI *)(_Out_ PRTL_OSVERSIONINFOEXW);
-      RtlGetVersionPtr RtlGetVersion = reinterpret_cast<RtlGetVersionPtr>(GetProcAddress(handle, "RtlGetVersion"));
-      if (RtlGetVersion != nullptr) {
-        RTL_OSVERSIONINFOEXW os_version_info = {};
-        os_version_info.dwOSVersionInfoSize = sizeof(os_version_info);
-        if (RtlGetVersion(&os_version_info) == 0) {
-          auto major = os_version_info.dwMajorVersion;
-          auto minor = os_version_info.dwMinorVersion;
-          bool is_server = os_version_info.wProductType != VER_NT_WORKSTATION;
-
-          if (major == 10) {
-            if (is_server) {
-              if (os_version_info.dwBuildNumber >= 20201) {
-                // https://techcommunity.microsoft.com/t5/windows-server-insiders/announcing/m-p/1614436
-                return "Windows Server 2022";
-              }
-              if (os_version_info.dwBuildNumber >= 17623) {
-                // https://techcommunity.microsoft.com/t5/windows-server-insiders/announcing/m-p/173715
-                return "Windows Server 2019";
-              }
-              return "Windows Server 2016";
-            }
-            if (os_version_info.dwBuildNumber >= 21900) {  // build numbers between 21391 and 21999 aren't used
-              return "Windows 11";
-            }
-            return "Windows 10";
-          }
-          if (major == 6 && minor == 3) {
-            return is_server ? "Windows Server 2012 R2" : "Windows 8.1";
-          }
-          if (major == 6 && minor == 2) {
-            return is_server ? "Windows Server 2012" : "Windows 8";
-          }
-          if (major == 6 && minor == 1) {
-            return is_server ? "Windows Server 2008 R2" : "Windows 7";
-          }
-          if (major == 6 && minor == 0) {
-            return is_server ? "Windows Server 2008" : "Windows Vista";
-          }
-          return is_server ? "Windows Server" : "Windows";
-        }
-      }
-    }
-#elif TD_WINRT
-    return "Windows 10";
-#endif
-
-    LOG(ERROR) << "Failed to identify OS name; use generic one";
-    return "Windows";
-#endif
-  }();
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/uname.h b/third-party/td/td/tdutils/td/utils/port/uname.h
deleted file mode 100644
index 7685909ff2..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/uname.h
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-
-namespace td {
-
-Slice get_operating_system_version();
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/user.cpp b/third-party/td/td/tdutils/td/utils/port/user.cpp
deleted file mode 100644
index 4263097c3f..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/user.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/user.h"
-
-#include "td/utils/port/config.h"
-
-#if TD_PORT_POSIX
-#include "td/utils/SliceBuilder.h"
-
-#include <grp.h>
-#include <pwd.h>
-#if TD_DARWIN || TD_FREEBSD || TD_NETBSD
-#include <sys/param.h>
-#endif
-#include <sys/types.h>
-#include <unistd.h>
-#endif
-
-namespace td {
-
-Status change_user(CSlice username, CSlice groupname) {
-#if TD_PORT_POSIX
-  passwd *pw = getpwnam(username.c_str());
-  if (pw == nullptr) {
-    return OS_ERROR(PSTRING() << "Can't find the user '" << username << "' to switch to");
-  }
-  uid_t uid = pw->pw_uid;
-  gid_t gid = pw->pw_gid;
-  if (setgroups(1, &gid) == -1) {
-    return OS_ERROR("Failed to clear supplementary group list");
-  }
-  if (!groupname.empty()) {
-    group *g = getgrnam(groupname.c_str());
-    if (g == nullptr) {
-      return OS_ERROR("Can't find the group to switch to");
-    }
-    gid = g->gr_gid;
-  } else if (initgroups(username.c_str(), gid) == -1) {
-    return OS_ERROR("Failed to load groups of user");
-  }
-  if (setgid(gid) == -1) {
-    return OS_ERROR("failed to set effective group ID");
-  }
-  if (setuid(uid) == -1) {
-    return OS_ERROR("failed to set effective user ID");
-  }
-  return Status::OK();
-#else
-  return Status::Error("Changing effective user is not supported");
-#endif
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/user.h b/third-party/td/td/tdutils/td/utils/port/user.h
deleted file mode 100644
index 80f155d897..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/user.h
+++ /dev/null
@@ -1,16 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-namespace td {
-
-Status change_user(CSlice username, CSlice groupname = CSlice());
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/port/wstring_convert.cpp b/third-party/td/td/tdutils/td/utils/port/wstring_convert.cpp
deleted file mode 100644
index 1dd6fa53bb..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/wstring_convert.cpp
+++ /dev/null
@@ -1,114 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/port/wstring_convert.h"
-
-char disable_linker_warning_about_empty_file_wstring_convert_cpp TD_UNUSED;
-
-#if TD_PORT_WINDOWS
-
-#include "td/utils/base64.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/utf8.h"
-
-#include <cwchar>
-
-namespace td {
-
-Result<std::wstring> to_wstring(CSlice slice) {
-  if (!check_utf8(slice)) {
-    return Status::Error(PSLICE() << "String was expected to be encoded in UTF-8: " << base64_encode(slice));
-  }
-
-  size_t wstring_len = utf8_utf16_length(slice);
-
-  std::wstring result(wstring_len, static_cast<wchar_t>(0));
-  if (wstring_len) {
-    wchar_t *res = &result[0];
-    for (size_t i = 0; i < slice.size();) {
-      uint32 a = static_cast<unsigned char>(slice[i++]);
-      if (a >= 0x80) {
-        uint32 b = static_cast<unsigned char>(slice[i++]);
-        if (a >= 0xe0) {
-          uint32 c = static_cast<unsigned char>(slice[i++]);
-          if (a >= 0xf0) {
-            uint32 d = static_cast<unsigned char>(slice[i++]);
-            uint32 val = ((a & 0x07) << 18) + ((b & 0x3f) << 12) + ((c & 0x3f) << 6) + (d & 0x3f) - 0x10000;
-            *res++ = static_cast<wchar_t>(0xD800 + (val >> 10));
-            *res++ = static_cast<wchar_t>(0xDC00 + (val & 0x3ff));
-          } else {
-            *res++ = static_cast<wchar_t>(((a & 0x0f) << 12) + ((b & 0x3f) << 6) + (c & 0x3f));
-          }
-        } else {
-          *res++ = static_cast<wchar_t>(((a & 0x1f) << 6) + (b & 0x3f));
-        }
-      } else {
-        *res++ = static_cast<wchar_t>(a);
-      }
-    }
-    CHECK(res == &result[0] + wstring_len);
-  }
-  return result;
-}
-
-Result<string> from_wstring(const wchar_t *begin, size_t size) {
-  size_t result_len = 0;
-  for (size_t i = 0; i < size; i++) {
-    uint32 cur = begin[i];
-    if ((cur & 0xF800) == 0xD800) {
-      if (i < size) {
-        uint32 next = begin[++i];
-        if ((next & 0xFC00) == 0xDC00 && (cur & 0x400) == 0) {
-          result_len += 4;
-          continue;
-        }
-      }
-
-      return Status::Error("Wrong wstring encoding");
-    }
-    result_len += 1 + (cur >= 0x80) + (cur >= 0x800);
-  }
-
-  std::string result(result_len, '\0');
-  if (result_len) {
-    char *res = &result[0];
-    for (size_t i = 0; i < size; i++) {
-      uint32 cur = begin[i];
-      // TODO conversion uint32 -> signed char is implementation defined
-      if (cur <= 0x7f) {
-        *res++ = static_cast<char>(cur);
-      } else if (cur <= 0x7ff) {
-        *res++ = static_cast<char>(0xc0 | (cur >> 6));
-        *res++ = static_cast<char>(0x80 | (cur & 0x3f));
-      } else if ((cur & 0xF800) != 0xD800) {
-        *res++ = static_cast<char>(0xe0 | (cur >> 12));
-        *res++ = static_cast<char>(0x80 | ((cur >> 6) & 0x3f));
-        *res++ = static_cast<char>(0x80 | (cur & 0x3f));
-      } else {
-        uint32 next = begin[++i];
-        uint32 val = ((cur - 0xD800) << 10) + next - 0xDC00 + 0x10000;
-
-        *res++ = static_cast<char>(0xf0 | (val >> 18));
-        *res++ = static_cast<char>(0x80 | ((val >> 12) & 0x3f));
-        *res++ = static_cast<char>(0x80 | ((val >> 6) & 0x3f));
-        *res++ = static_cast<char>(0x80 | (val & 0x3f));
-      }
-    }
-  }
-  return result;
-}
-
-Result<string> from_wstring(const std::wstring &str) {
-  return from_wstring(str.data(), str.size());
-}
-
-Result<string> from_wstring(const wchar_t *begin) {
-  return from_wstring(begin, std::wcslen(begin));
-}
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/port/wstring_convert.h b/third-party/td/td/tdutils/td/utils/port/wstring_convert.h
deleted file mode 100644
index e310dbc28e..0000000000
--- a/third-party/td/td/tdutils/td/utils/port/wstring_convert.h
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/config.h"
-
-#if TD_PORT_WINDOWS
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-
-#include <string>
-
-namespace td {
-
-Result<std::wstring> to_wstring(CSlice slice);
-
-Result<string> from_wstring(const std::wstring &str);
-
-Result<string> from_wstring(const wchar_t *begin, size_t size);
-
-Result<string> from_wstring(const wchar_t *begin);
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/queue.h b/third-party/td/td/tdutils/td/utils/queue.h
deleted file mode 100644
index 3ce0e2e8ba..0000000000
--- a/third-party/td/td/tdutils/td/utils/queue.h
+++ /dev/null
@@ -1,472 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/port/EventFd.h"
-#include "td/utils/port/sleep.h"
-
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-
-#include <atomic>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-namespace detail {
-class Backoff {
-  int cnt = 0;
-
- public:
-  bool next() {
-    // TODO: find out better strategy
-    // TODO: try adaptive backoff
-    // TODO: different strategy one core cpu
-    // return false;
-
-    cnt++;
-    if (cnt < 1) {  // 50
-      return true;
-    } else {
-      usleep_for(1);
-      return cnt < 3;  // 500
-    }
-  }
-};
-
-class InfBackoff {
-  int cnt = 0;
-
- public:
-  bool next() {
-    cnt++;
-    if (cnt < 50) {
-      return true;
-    } else {
-      usleep_for(1);
-      return true;
-    }
-  }
-};
-
-}  // namespace detail
-
-template <class T, int P = 10>
-class SPSCBlockQueue {
- public:
-  using ValueType = T;
-
- private:
-  static constexpr int buffer_size() {
-    static_assert(P >= 1 && P <= 20, "Bad size of BlockQueue");
-    return 1 << P;
-  }
-
-  struct Position {
-    std::atomic<uint32> i{0};
-    char pad[64 - sizeof(std::atomic<uint32>)];
-    uint32 local_writer_i;
-    char pad2[64 - sizeof(uint32)];
-    uint32 local_reader_i;
-    char pad3[64 - sizeof(uint32)];
-
-    void init() {
-      i = 0;
-      local_reader_i = 0;
-      local_writer_i = 0;
-    }
-  };
-
-  typename std::aligned_storage<sizeof(ValueType)>::type data_[buffer_size()];
-  Position writer_;
-  Position reader_;
-
-  static int fix_i(int i) {
-    return i & (buffer_size() - 1);
-  }
-
-  ValueType *at_ptr(int i) {
-    return reinterpret_cast<ValueType *>(&data_[fix_i(i)]);
-  }
-
-  ValueType &at(int i) {
-    return *at_ptr(i);
-  }
-
- public:
-  void init() {
-    writer_.init();
-    reader_.init();
-  }
-
-  void destroy() {
-  }
-
-  int writer_size() {
-    return static_cast<int>(writer_.local_reader_i + buffer_size() - writer_.local_writer_i);
-  }
-
-  bool writer_empty() {
-    return writer_.local_reader_i + buffer_size() == writer_.local_writer_i;
-  }
-
-  template <class PutValueType>
-  void writer_put_unsafe(PutValueType &&value) {
-    at(writer_.local_writer_i++) = std::forward<PutValueType>(value);
-  }
-
-  int writer_update() {
-    writer_.local_reader_i = reader_.i.load(std::memory_order_acquire);
-    return writer_size();
-  }
-
-  void writer_flush() {
-    writer_.i.store(writer_.local_writer_i, std::memory_order_release);
-  }
-
-  int reader_size() {
-    return static_cast<int>(reader_.local_writer_i - reader_.local_reader_i);
-  }
-
-  int reader_empty() {
-    return reader_.local_writer_i == reader_.local_reader_i;
-  }
-
-  ValueType reader_get_unsafe() {
-    return std::move(at(reader_.local_reader_i++));
-  }
-
-  int reader_update() {
-    reader_.local_writer_i = writer_.i.load(std::memory_order_acquire);
-    return reader_size();
-  }
-
-  void reader_flush() {
-    reader_.i.store(reader_.local_reader_i, std::memory_order_release);
-  }
-};
-
-template <class T, class BlockQueueT = SPSCBlockQueue<T>>
-class SPSCChainQueue {
- public:
-  using ValueType = T;
-
-  void init() {
-    head_ = tail_ = create_node();
-  }
-
-  SPSCChainQueue() = default;
-  SPSCChainQueue(const SPSCChainQueue &) = delete;
-  SPSCChainQueue &operator=(const SPSCChainQueue &) = delete;
-  SPSCChainQueue(SPSCChainQueue &&) = delete;
-  SPSCChainQueue &operator=(SPSCChainQueue &&) = delete;
-  ~SPSCChainQueue() {
-    destroy();
-  }
-
-  void destroy() {
-    while (head_ != nullptr) {
-      Node *to_delete = head_;
-      head_ = head_->next_;
-      delete_node(to_delete);
-    }
-    tail_ = nullptr;
-  }
-
-  int writer_size() {
-    return tail_->q_.writer_size();
-  }
-
-  bool writer_empty() {
-    return tail_->q_.writer_empty();
-  }
-
-  template <class PutValueType>
-  void writer_put_unsafe(PutValueType &&value) {
-    tail_->q_.writer_put_unsafe(std::forward<PutValueType>(value));
-  }
-
-  int writer_update() {
-    int res = tail_->q_.writer_update();
-    if (res != 0) {
-      return res;
-    }
-
-    writer_flush();
-
-    Node *new_tail = create_node();
-    tail_->next_ = new_tail;
-    tail_->is_closed_.store(true, std::memory_order_release);
-    tail_ = new_tail;
-    return tail_->q_.writer_update();
-  }
-
-  void writer_flush() {
-    tail_->q_.writer_flush();
-  }
-
-  int reader_size() {
-    return head_->q_.reader_size();
-  }
-
-  int reader_empty() {
-    return head_->q_.reader_empty();
-  }
-
-  ValueType reader_get_unsafe() {
-    return std::move(head_->q_.reader_get_unsafe());
-  }
-
-  int reader_update() {
-    int res = head_->q_.reader_update();
-    if (res != 0) {
-      return res;
-    }
-
-    if (!head_->is_closed_.load(std::memory_order_acquire)) {
-      return 0;
-    }
-
-    res = head_->q_.reader_update();
-    if (res != 0) {
-      return res;
-    }
-
-    // reader_flush();
-
-    Node *old_head = head_;
-    head_ = head_->next_;
-    delete_node(old_head);
-
-    return head_->q_.reader_update();
-  }
-
-  void reader_flush() {
-    head_->q_.reader_flush();
-  }
-
- private:
-  struct Node {
-    BlockQueueT q_;
-    std::atomic<bool> is_closed_{false};
-    Node *next_;
-
-    void init() {
-      q_.init();
-      is_closed_ = false;
-      next_ = nullptr;
-    }
-
-    void destroy() {
-      q_.destroy();
-      next_ = nullptr;
-    }
-  };
-
-  Node *head_;
-  char pad[64 - sizeof(Node *)];
-  Node *tail_;
-  char pad2[64 - sizeof(Node *)];
-
-  Node *create_node() {
-    Node *res = new Node();
-    res->init();
-    return res;
-  }
-
-  void delete_node(Node *node) {
-    node->destroy();
-    delete node;
-  }
-};
-
-template <class T, class QueueT = SPSCChainQueue<T>, class BackoffT = detail::Backoff>
-class BackoffQueue : public QueueT {
- public:
-  using ValueType = T;
-
-  template <class PutValueType>
-  void writer_put(PutValueType &&value) {
-    if (this->writer_empty()) {
-      int sz = this->writer_update();
-      CHECK(sz != 0);
-    }
-    this->writer_put_unsafe(std::forward<PutValueType>(value));
-  }
-
-  int reader_wait() {
-    BackoffT backoff;
-    int res = 0;
-    do {
-      res = this->reader_update();
-    } while (res == 0 && backoff.next());
-    return res;
-  }
-};
-
-template <class T, class QueueT = SPSCChainQueue<T>>
-using InfBackoffQueue = BackoffQueue<T, QueueT, detail::InfBackoff>;
-
-template <class T, class QueueT = BackoffQueue<T>>
-class PollQueue final : public QueueT {
- public:
-  using ValueType = T;
-  using QueueType = QueueT;
-
-  void init() {
-    QueueType::init();
-    event_fd_.init();
-    wait_state_ = 0;
-    writer_wait_state_ = 0;
-  }
-
-  PollQueue() = default;
-  PollQueue(const PollQueue &) = delete;
-  PollQueue &operator=(const PollQueue &) = delete;
-  PollQueue(PollQueue &&) = delete;
-  PollQueue &operator=(PollQueue &&) = delete;
-  ~PollQueue() {
-    destroy_impl();
-  }
-  void destroy() {
-    destroy_impl();
-    QueueType::destroy();
-  }
-
-  void writer_flush() {
-    int old_wait_state = get_wait_state();
-
-    std::atomic_thread_fence(std::memory_order_seq_cst);
-
-    QueueType::writer_flush();
-
-    std::atomic_thread_fence(std::memory_order_seq_cst);
-
-    int wait_state = get_wait_state();
-    if ((wait_state & 1) && wait_state != writer_wait_state_) {
-      event_fd_.release();
-      writer_wait_state_ = old_wait_state;
-    }
-  }
-
-  EventFd &reader_get_event_fd() {
-    return event_fd_;
-  }
-
-  // if 0 is returned than it is useless to rerun it before fd is
-  // ready to read.
-  int reader_wait_nonblock() {
-    int res;
-
-    if ((get_wait_state() & 1) == 0) {
-      res = this->QueueType::reader_wait();
-      if (res != 0) {
-        return res;
-      }
-
-      inc_wait_state();
-
-      std::atomic_thread_fence(std::memory_order_seq_cst);
-
-      res = this->reader_update();
-      if (res != 0) {
-        inc_wait_state();
-        return res;
-      }
-    }
-
-    event_fd_.acquire();
-    std::atomic_thread_fence(std::memory_order_seq_cst);
-    res = this->reader_update();
-    if (res != 0) {
-      inc_wait_state();
-    }
-    return res;
-  }
-
-  // Just an example of usage
-  int reader_wait() {
-    int res;
-    while ((res = reader_wait_nonblock()) == 0) {
-      reader_get_event_fd().wait(1000);
-    }
-    return res;
-  }
-
- private:
-  EventFd event_fd_;
-  std::atomic<int> wait_state_{0};
-  int writer_wait_state_;
-
-  int get_wait_state() {
-    return wait_state_.load(std::memory_order_relaxed);
-  }
-
-  void inc_wait_state() {
-    wait_state_.store(get_wait_state() + 1, std::memory_order_relaxed);
-  }
-
-  void destroy_impl() {
-    if (!event_fd_.empty()) {
-      event_fd_.close();
-    }
-  }
-};
-
-}  // namespace td
-
-#else
-
-#include "td/utils/common.h"
-
-namespace td {
-
-// dummy implementation which shouldn't be used
-
-template <class T>
-class PollQueue {
- public:
-  using ValueType = T;
-
-  void init() {
-    UNREACHABLE();
-  }
-
-  template <class PutValueType>
-  void writer_put(PutValueType &&value) {
-    UNREACHABLE();
-  }
-
-  void writer_flush() {
-    UNREACHABLE();
-  }
-
-  int reader_wait_nonblock() {
-    UNREACHABLE();
-    return 0;
-  }
-
-  ValueType reader_get_unsafe() {
-    UNREACHABLE();
-    return ValueType();
-  }
-
-  void reader_flush() {
-    UNREACHABLE();
-  }
-
-  PollQueue() = default;
-  PollQueue(const PollQueue &) = delete;
-  PollQueue &operator=(const PollQueue &) = delete;
-  PollQueue(PollQueue &&) = delete;
-  PollQueue &operator=(PollQueue &&) = delete;
-  ~PollQueue() = default;
-};
-
-}  // namespace td
-
-#endif
diff --git a/third-party/td/td/tdutils/td/utils/simple_tests.h b/third-party/td/td/tdutils/td/utils/simple_tests.h
deleted file mode 100644
index a232f2aa55..0000000000
--- a/third-party/td/td/tdutils/td/utils/simple_tests.h
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/PathView.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-
-#include <utility>
-
-namespace td {
-namespace simple_test {
-
-class DebugContext {
- public:
-  static DebugContext &instance() {
-    static TD_THREAD_LOCAL DebugContext *instance{};
-    init_thread_local<DebugContext>(instance);
-    return *instance;
-  }
-  template <typename T>
-  void add(Slice name, const T &value, CSlice file = {}, int line = 0) {
-    StringBuilder sb;
-    sb << name << "=" << value;
-
-    if (file.empty()) {
-      sb << " (at " << PathView(file).file_name() << ":" << line << ")";
-    }
-
-    values_.emplace_back(name.str(), sb.as_cslice().str());
-  }
-
-  void pop_back() {
-    if (!values_.empty()) {
-      values_.pop_back();
-    }
-  }
-
-  friend StringBuilder &operator<<(StringBuilder &sb, const DebugContext &ctx) {
-    if (ctx.values_.empty()) {
-      return sb;
-    }
-
-    sb << "\nDebug context:";
-    for (const auto &pair : ctx.values_) {
-      sb << "\n  " << pair.second;
-    }
-    return sb;
-  }
-
- private:
-  vector<std::pair<string, string>> values_;
-};
-
-template <typename T>
-class ScopedDebugValue {
- public:
-  ScopedDebugValue(Slice name, const T &value, CSlice file = {}, int line = 0) : name_(name.str()) {
-    DebugContext::instance().add(name_, value, file, line);
-  }
-
-  ~ScopedDebugValue() {
-    DebugContext::instance().pop_back();
-  }
-
- private:
-  string name_;
-};
-
-inline Status format_error(StringBuilder &sb, const char *file, int line) {
-  sb << "\n\tat " << PathView(Slice(file)).file_name() << ":" << line << DebugContext::instance();
-  return Status::Error(sb.as_cslice());
-}
-
-}  // namespace simple_test
-
-class StatusTest : public Test {
- public:
-  ~StatusTest() override = default;
-
-  virtual Status run_test() = 0;
-  virtual string get_test_name() const = 0;
-
-  void run() override {
-    auto status = run_test();
-    if (status.is_ok()) {
-      LOG(INFO) << "Test " << get_test_name() << " PASSED";
-    } else {
-      // Include debug context in error message if available
-      LOG(FATAL) << "Test " << get_test_name() << " FAILED: " << status.message()
-                 << simple_test::DebugContext::instance();
-    }
-  }
-};
-
-// Macro for defining status-based tests
-#define S_TEST(test_case_name, test_name)                                                                            \
-  class TD_CONCAT(StatusTest_, TD_CONCAT(test_case_name, TD_CONCAT(_, test_name))) final : public ::td::StatusTest { \
-   public:                                                                                                           \
-    ::td::Status run_test() override;                                                                                \
-    ::td::string get_test_name() const override {                                                                    \
-      return #test_case_name "." #test_name;                                                                         \
-    }                                                                                                                \
-  };                                                                                                                 \
-  ::td::RegisterTest<TD_CONCAT(StatusTest_, TD_CONCAT(test_case_name, TD_CONCAT(_, test_name)))> TD_CONCAT(          \
-      status_test_instance_,                                                                                         \
-      TD_CONCAT(TD_CONCAT(test_case_name, TD_CONCAT(_, test_name)), __LINE__))(#test_case_name "." #test_name);      \
-  ::td::Status TD_CONCAT(StatusTest_, TD_CONCAT(test_case_name, TD_CONCAT(_, test_name)))::run_test()
-
-// Add a debug value within current scope with file/line info
-#define TEST_DEBUG_VALUE(name, value)                                                                            \
-  ::td::simple_test::ScopedDebugValue<decltype(value)> TD_CONCAT(debug_value_, __LINE__)(#name, value, __FILE__, \
-                                                                                         __LINE__)
-
-#define TEST_TRY_RESULT(name, expr)                                      \
-  auto TD_CONCAT(r_, __LINE__) = (expr);                                 \
-  if (TD_CONCAT(r_, __LINE__).is_error()) {                              \
-    auto error = TD_CONCAT(r_, __LINE__).move_as_error();                \
-    ::td::StringBuilder sb;                                              \
-    sb << "\nFailed to execute " << #expr << ":\n\t" << error.message(); \
-    return ::td::simple_test::format_error(sb, __FILE__, __LINE__);      \
-  }                                                                      \
-  auto name = TD_CONCAT(r_, __LINE__).move_as_ok();                      \
-  TEST_DEBUG_VALUE(name, name)
-
-#define TEST_TRY_STATUS(expr)                                                       \
-  {                                                                                 \
-    auto result = (expr);                                                           \
-    if (result.is_error()) {                                                        \
-      ::td::StringBuilder sb;                                                       \
-      sb << "\nFailed to execute " << #expr << ":\n\t" << result.error().message(); \
-      return ::td::simple_test::format_error(sb, __FILE__, __LINE__);               \
-    }                                                                               \
-  }
-
-#define TEST_ASSERT(condition, message)                                \
-  if (!(condition)) {                                                  \
-    ::td::StringBuilder sb;                                            \
-    sb << "\nAssertion failed: " << #condition << " -\n\t" << message; \
-    return ::td::simple_test::format_error(sb, __FILE__, __LINE__);    \
-  }
-
-#define TEST_ASSERT_EQ(expected_, received_, message)                                              \
-  {                                                                                                \
-    const auto &expected = (expected_);                                                            \
-    const auto &received = (received_);                                                            \
-    if (!(expected == received)) {                                                                 \
-      ::td::StringBuilder sb;                                                                      \
-      sb << "\n"                                                                                   \
-         << #received_ << " != " << #expected_ << " - " << message << "\n\texpected: " << expected \
-         << "\n\treceived:" << received;                                                           \
-      return ::td::simple_test::format_error(sb, __FILE__, __LINE__);                              \
-    }                                                                                              \
-  }
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/tests.cpp b/third-party/td/td/tdutils/td/utils/tests.cpp
deleted file mode 100644
index bc224b5cf8..0000000000
--- a/third-party/td/td/tdutils/td/utils/tests.cpp
+++ /dev/null
@@ -1,279 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/tests.h"
-
-#include "td/utils/crypto.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/Parser.h"
-#include "td/utils/PathView.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/Time.h"
-
-#include <map>
-
-namespace td {
-
-string rand_string(int from, int to, size_t len) {
-  string res(len, '\0');
-  for (auto &c : res) {
-    c = static_cast<char>(Random::fast(from, to));
-  }
-  return res;
-}
-
-vector<string> rand_split(Slice str) {
-  vector<string> res;
-  size_t pos = 0;
-  while (pos < str.size()) {
-    size_t len;
-    if (Random::fast_bool()) {
-      len = Random::fast(1, 10);
-    } else {
-      len = Random::fast(100, 200);
-    }
-    res.push_back(str.substr(pos, len).str());
-    pos += len;
-  }
-  return res;
-}
-
-struct TestInfo {
-  string name;
-  string result_hash;  // base64
-};
-
-StringBuilder &operator<<(StringBuilder &sb, const TestInfo &info) {
-  // should I use JSON?
-  CHECK(!info.name.empty());
-  CHECK(!info.result_hash.empty());
-  return sb << info.name << " " << info.result_hash << "\n";
-}
-
-class RegressionTesterImpl final : public RegressionTester {
- public:
-  static void destroy(CSlice db_path) {
-    unlink(db_path).ignore();
-  }
-
-  RegressionTesterImpl(string db_path, string db_cache_dir)
-      : db_path_(std::move(db_path)), db_cache_dir_(std::move(db_cache_dir)) {
-    load_db(db_path_).ignore();
-    if (db_cache_dir_.empty()) {
-      db_cache_dir_ = PathView(db_path_).without_extension().str() + ".cache/";
-    }
-    mkdir(db_cache_dir_).ensure();
-  }
-
-  Status verify_test(Slice name, Slice result) final {
-#if TD_HAVE_OPENSSL
-    auto hash = PSTRING() << format::as_hex_dump<0>(Slice(sha256(result)));
-#else
-    auto hash = to_string(crc64(result));
-#endif
-    TestInfo &old_test_info = tests_[name.str()];
-    if (!old_test_info.result_hash.empty() && old_test_info.result_hash != hash) {
-      auto wa_path = db_cache_dir_ + "WA";
-      write_file(wa_path, result).ensure();
-      return Status::Error(PSLICE() << "Test " << name << " changed: " << tag("expected", old_test_info.result_hash)
-                                    << tag("received", hash));
-    }
-    auto result_cache_path = db_cache_dir_ + hash;
-    if (stat(result_cache_path).is_error()) {
-      write_file(result_cache_path, result).ensure();
-    }
-    if (!old_test_info.result_hash.empty()) {
-      return Status::OK();
-    }
-    old_test_info.name = name.str();
-    old_test_info.result_hash = hash;
-    is_dirty_ = true;
-
-    return Status::OK();
-  }
-
-  void save_db() final {
-    if (!is_dirty_) {
-      return;
-    }
-    SCOPE_EXIT {
-      is_dirty_ = false;
-    };
-    string buf(2000000, ' ');
-    StringBuilder sb(buf);
-    save_db(sb);
-    string new_db_path = db_path_ + ".new";
-    write_file(new_db_path, sb.as_cslice()).ensure();
-    rename(new_db_path, db_path_).ensure();
-  }
-
-  Slice magic() const {
-    return Slice("abce");
-  }
-
-  void save_db(StringBuilder &sb) {
-    sb << magic() << "\n";
-    for (const auto &it : tests_) {
-      sb << it.second;
-    }
-  }
-
-  Status load_db(CSlice path) {
-    TRY_RESULT(data, read_file(path));
-    ConstParser parser(data.as_slice());
-    auto db_magic = parser.read_word();
-    if (db_magic != magic()) {
-      return Status::Error(PSLICE() << "Wrong magic " << db_magic);
-    }
-    while (true) {
-      TestInfo info;
-      info.name = parser.read_word().str();
-      if (info.name.empty()) {
-        break;
-      }
-      info.result_hash = parser.read_word().str();
-      tests_[info.name] = info;
-    }
-    return Status::OK();
-  }
-
- private:
-  string db_path_;
-  string db_cache_dir_;
-  bool is_dirty_{false};
-
-  std::map<string, TestInfo> tests_;
-};
-
-void RegressionTester::destroy(CSlice path) {
-  RegressionTesterImpl::destroy(path);
-}
-
-unique_ptr<RegressionTester> RegressionTester::create(string db_path, string db_cache_dir) {
-  return td::make_unique<RegressionTesterImpl>(std::move(db_path), std::move(db_cache_dir));
-}
-
-TestsRunner &TestsRunner::get_default() {
-  static TestsRunner default_runner;
-  return default_runner;
-}
-
-void TestsRunner::add_test(string name, std::function<unique_ptr<Test>()> test) {
-  for (auto &it : tests_) {
-    if (it.first == name) {
-      LOG(FATAL) << "Test name collision " << name;
-    }
-  }
-  tests_.emplace_back(std::move(name), TestInfo{std::move(test), nullptr});
-}
-
-void TestsRunner::add_substr_filter(string str) {
-  if (str[0] != '+' && str[0] != '-') {
-    str = "+" + str;
-  }
-  substr_filters_.push_back(std::move(str));
-}
-
-void TestsRunner::set_offset(string str) {
-  offset_ = std::move(str);
-}
-
-void TestsRunner::set_regression_tester(unique_ptr<RegressionTester> regression_tester) {
-  regression_tester_ = std::move(regression_tester);
-}
-
-void TestsRunner::set_stress_flag(bool flag) {
-  stress_flag_ = flag;
-}
-
-void TestsRunner::run_all() {
-  while (run_all_step()) {
-  }
-}
-
-bool TestsRunner::run_all_step() {
-  Guard guard(this);
-  if (state_.it == state_.end) {
-    state_.end = tests_.size();
-    state_.it = 0;
-  }
-
-  bool skip_tests = true;
-  while (state_.it != state_.end) {
-    auto &name = tests_[state_.it].first;
-    auto &test = tests_[state_.it].second.test;
-    if (!state_.is_running) {
-      bool ok = true;
-      for (const auto &filter : substr_filters_) {
-        bool is_match = name.find(filter.substr(1)) != string::npos;
-        if (is_match != (filter[0] == '+')) {
-          ok = false;
-          break;
-        }
-      }
-      if (name.find(offset_) != string::npos) {
-        skip_tests = false;
-      }
-      if (!ok || skip_tests) {
-        ++state_.it;
-        continue;
-      }
-      LOG(ERROR) << "Run test " << tag("name", name);
-      state_.start = Time::now();
-      state_.start_unadjusted = Time::now_unadjusted();
-      state_.is_running = true;
-
-      CHECK(!test);
-      test = tests_[state_.it].second.creator();
-    }
-
-    if (test->step()) {
-      break;
-    }
-
-    test = {};
-
-    auto passed = Time::now() - state_.start;
-    auto real_passed = Time::now_unadjusted() - state_.start_unadjusted;
-    if (real_passed + 1e-1 > passed) {
-      LOG(ERROR) << format::as_time(passed);
-    } else {
-      LOG(ERROR) << format::as_time(real_passed) << " adjusted [" << format::as_time(real_passed) << "]";
-    }
-    if (regression_tester_) {
-      regression_tester_->save_db();
-    }
-    state_.is_running = false;
-    ++state_.it;
-  }
-
-  auto ret = state_.it != state_.end;
-  if (!ret) {
-    state_ = State();
-  }
-  return ret || stress_flag_;
-}
-
-Slice TestsRunner::name() {
-  CHECK(state_.is_running);
-  return tests_[state_.it].first;
-}
-
-Status TestsRunner::verify(Slice data) {
-  if (!regression_tester_) {
-    LOG(INFO) << data;
-    LOG(ERROR) << "Cannot verify and save <" << name() << "> answer. Use --regression <regression_db> option";
-    return Status::OK();
-  }
-  return regression_tester_->verify_test(PSLICE() << name() << "_default", data);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/tests.h b/third-party/td/td/tdutils/td/utils/tests.h
deleted file mode 100644
index ea0da24f92..0000000000
--- a/third-party/td/td/tdutils/td/utils/tests.h
+++ /dev/null
@@ -1,220 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Context.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/Status.h"
-
-#include <atomic>
-#include <condition_variable>
-#include <functional>
-#include <mutex>
-#include <utility>
-
-namespace td {
-
-class RandomSteps {
- public:
-  struct Step {
-    std::function<void()> func;
-    uint32 weight;
-  };
-
-  explicit RandomSteps(vector<Step> steps) : steps_(std::move(steps)) {
-    for (const auto &step : steps_) {
-      steps_sum_ += step.weight;
-    }
-  }
-
-  template <class Random>
-  auto step(Random &rnd) const {
-    auto w = rnd() % steps_sum_;
-    for (const auto &step : steps_) {
-      if (w < step.weight) {
-        return step.func();
-      }
-      w -= step.weight;
-    }
-  }
-
- private:
-  vector<Step> steps_;
-  int32 steps_sum_ = 0;
-};
-
-class RegressionTester {
- public:
-  virtual ~RegressionTester() = default;
-  static void destroy(CSlice db_path);
-  static unique_ptr<RegressionTester> create(string db_path, string db_cache_dir = "");
-
-  virtual Status verify_test(Slice name, Slice result) = 0;
-  virtual void save_db() = 0;
-};
-
-class Test {
- public:
-  virtual ~Test() = default;
-  virtual void run() {
-    while (step()) {
-    }
-  }
-  virtual bool step() {
-    run();
-    return false;
-  }
-  Test() = default;
-  Test(const Test &) = delete;
-  Test &operator=(const Test &) = delete;
-  Test(Test &&) = delete;
-  Test &operator=(Test &&) = delete;
-};
-
-class TestContext : public Context<TestContext> {
- public:
-  virtual ~TestContext() = default;
-  virtual Slice name() = 0;
-  virtual Status verify(Slice data) = 0;
-};
-
-class TestsRunner final : public TestContext {
- public:
-  static TestsRunner &get_default();
-
-  void add_test(string name, std::function<unique_ptr<Test>()> test);
-  void add_substr_filter(string str);
-  void set_offset(string str);
-  void set_stress_flag(bool flag);
-  void run_all();
-  bool run_all_step();
-  void set_regression_tester(unique_ptr<RegressionTester> regression_tester);
-
- private:
-  struct State {
-    size_t it{0};
-    bool is_running = false;
-    double start{0};
-    double start_unadjusted{0};
-    size_t end{0};
-  };
-  bool stress_flag_{false};
-  vector<string> substr_filters_;
-  string offset_;
-  struct TestInfo {
-    std::function<unique_ptr<Test>()> creator;
-    unique_ptr<Test> test;
-  };
-  vector<std::pair<string, TestInfo>> tests_;
-  State state_;
-  unique_ptr<RegressionTester> regression_tester_;
-
-  Slice name() final;
-  Status verify(Slice data) final;
-};
-
-template <class T>
-class RegisterTest {
- public:
-  explicit RegisterTest(string name, TestsRunner &runner = TestsRunner::get_default()) {
-    runner.add_test(std::move(name), [] { return make_unique<T>(); });
-  }
-};
-
-class StageWait {
- public:
-  void wait(uint64 need) {
-    value_.fetch_add(1, std::memory_order_release);
-    while (value_.load(std::memory_order_acquire) < need) {
-      usleep_for(1);
-    }
-  };
-
- private:
-  std::atomic<uint64> value_{0};
-};
-
-class StageMutex {
- public:
-  void wait(uint64 need) {
-    std::unique_lock<std::mutex> lock{mutex_};
-    value_++;
-    if (value_ == need) {
-      cond_.notify_all();
-      return;
-    }
-    cond_.wait(lock, [&] { return value_ >= need; });
-  };
-
- private:
-  std::mutex mutex_;
-  std::condition_variable cond_;
-  uint64 value_{0};
-};
-
-using Stage = StageMutex;
-
-string rand_string(int from, int to, size_t len);
-
-vector<string> rand_split(Slice str);
-
-template <class T, class R>
-void rand_shuffle(MutableSpan<T> v, R &rnd) {
-  for (size_t i = 1; i < v.size(); i++) {
-    auto pos = static_cast<size_t>(rnd()) % (i + 1);
-    using std::swap;
-    swap(v[i], v[pos]);
-  }
-}
-
-template <class T1, class T2>
-void assert_eq_impl(const T1 &expected, const T2 &received, const char *file, int line) {
-  LOG_CHECK(expected == received) << tag("expected", expected) << tag("received", received) << " in " << file
-                                  << " at line " << line;
-}
-
-template <class T1, class T2>
-void assert_neq_impl(const T1 &expected, const T2 &received, const char *file, int line) {
-  LOG_CHECK(expected != received) << tag("value", expected) << " in " << file << " at line " << line;
-}
-
-template <class T>
-void assert_true_impl(const T &received, const char *file, int line) {
-  LOG_CHECK(received) << "Expected true in " << file << " at line " << line;
-}
-
-}  // namespace td
-
-#define ASSERT_EQ(expected, received) ::td::assert_eq_impl((expected), (received), __FILE__, __LINE__)
-#define ASSERT_NE(expected, received) ::td::assert_neq_impl((expected), (received), __FILE__, __LINE__)
-
-#define ASSERT_TRUE(received) ::td::assert_true_impl((received), __FILE__, __LINE__)
-#define ASSERT_FALSE(received) ::td::assert_true_impl(!(received), __FILE__, __LINE__)
-
-#define ASSERT_STREQ(expected, received) \
-  ::td::assert_eq_impl(::td::Slice((expected)), ::td::Slice((received)), __FILE__, __LINE__)
-
-#define REGRESSION_VERIFY(data) ::td::TestContext::get()->verify(data).ensure()
-
-#define TEST_NAME(test_case_name, test_name) \
-  TD_CONCAT(Test, TD_CONCAT(_, TD_CONCAT(test_case_name, TD_CONCAT(_, test_name))))
-
-#define TEST(test_case_name, test_name) TEST_IMPL(TEST_NAME(test_case_name, test_name))
-
-#define TEST_IMPL(test_name)                                                                                         \
-  class test_name final : public ::td::Test {                                                                        \
-   public:                                                                                                           \
-    using Test::Test;                                                                                                \
-    void run() final;                                                                                                \
-  };                                                                                                                 \
-  ::td::RegisterTest<test_name> TD_CONCAT(test_instance_, TD_CONCAT(test_name, __LINE__))(TD_DEFINE_STR(test_name)); \
-  void test_name::run()
diff --git a/third-party/td/td/tdutils/td/utils/tl_helpers.h b/third-party/td/td/tdutils/td/utils/tl_helpers.h
deleted file mode 100644
index 8deea3e774..0000000000
--- a/third-party/td/td/tdutils/td/utils/tl_helpers.h
+++ /dev/null
@@ -1,329 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/misc.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StackAllocator.h"
-#include "td/utils/Status.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-#include "td/utils/UInt.h"
-#include "td/utils/unique_value_ptr.h"
-#include "td/utils/Variant.h"
-
-#include <type_traits>
-#include <utility>
-
-#define BEGIN_STORE_FLAGS()       \
-  do {                            \
-    ::td::uint32 flags_store = 0; \
-  ::td::uint32 bit_offset_store = 0
-
-#define STORE_FLAG(flag)                                                         \
-  static_assert(std::is_same<decltype(flag), bool>::value, "flag must be bool"); \
-  flags_store |= (flag) << bit_offset_store;                                     \
-  bit_offset_store++
-
-#define END_STORE_FLAGS()           \
-  CHECK(bit_offset_store < 31);     \
-  ::td::store(flags_store, storer); \
-  }                                 \
-  while (false)
-
-#define BEGIN_PARSE_FLAGS()            \
-  do {                                 \
-    ::td::uint32 flags_parse;          \
-    ::td::uint32 bit_offset_parse = 0; \
-  ::td::parse(flags_parse, parser)
-
-#define PARSE_FLAG(flag)                                                         \
-  static_assert(std::is_same<decltype(flag), bool>::value, "flag must be bool"); \
-  flag = ((flags_parse >> bit_offset_parse) & 1) != 0;                           \
-  bit_offset_parse++
-
-#define END_PARSE_FLAGS()                                                                                           \
-  CHECK(bit_offset_parse < 31);                                                                                     \
-  if ((flags_parse & ~((1 << bit_offset_parse) - 1)) != 0) {                                                        \
-    parser.set_error(PSTRING() << "Invalid flags " << flags_parse << " left, current bit is " << bit_offset_parse); \
-  }                                                                                                                 \
-  }                                                                                                                 \
-  while (false)
-
-namespace td {
-
-template <class StorerT>
-void store(bool x, StorerT &storer) {
-  storer.store_binary(static_cast<int32>(x));
-}
-template <class ParserT>
-void parse(bool &x, ParserT &parser) {
-  x = parser.fetch_int() != 0;
-}
-
-template <class StorerT>
-void store(int32 x, StorerT &storer) {
-  storer.store_binary(x);
-}
-template <class ParserT>
-void parse(int32 &x, ParserT &parser) {
-  x = parser.fetch_int();
-}
-
-template <class StorerT>
-void store(uint32 x, StorerT &storer) {
-  storer.store_binary(x);
-}
-template <class ParserT>
-void parse(uint32 &x, ParserT &parser) {
-  x = static_cast<uint32>(parser.fetch_int());
-}
-
-template <class StorerT>
-void store(int64 x, StorerT &storer) {
-  storer.store_binary(x);
-}
-template <class ParserT>
-void parse(int64 &x, ParserT &parser) {
-  x = parser.fetch_long();
-}
-template <class StorerT>
-void store(uint64 x, StorerT &storer) {
-  storer.store_binary(x);
-}
-template <class ParserT>
-void parse(uint64 &x, ParserT &parser) {
-  x = static_cast<uint64>(parser.fetch_long());
-}
-
-template <class StorerT>
-void store(UInt256 x, StorerT &storer) {
-  storer.store_binary(x);
-}
-template <class ParserT>
-void parse(UInt256 &x, ParserT &parser) {
-  x = parser.template fetch_binary<UInt256>();
-}
-
-template <class StorerT>
-void store(UInt512 x, StorerT &storer) {
-  storer.store_binary(x);
-}
-template <class ParserT>
-void parse(UInt512 &x, ParserT &parser) {
-  x = parser.template fetch_binary<UInt512>();
-}
-
-template <class StorerT>
-void store(double x, StorerT &storer) {
-  storer.store_binary(x);
-}
-template <class ParserT>
-void parse(double &x, ParserT &parser) {
-  x = parser.fetch_double();
-}
-
-template <class StorerT>
-void store(Slice x, StorerT &storer) {
-  storer.store_string(x);
-}
-template <class StorerT>
-void store(const string &x, StorerT &storer) {
-  storer.store_string(x);
-}
-template <class StorerT>
-void store(const SecureString &x, StorerT &storer) {
-  storer.store_string(x.as_slice());
-}
-template <class ParserT>
-void parse(string &x, ParserT &parser) {
-  x = parser.template fetch_string<string>();
-}
-
-template <class ParserT>
-void parse(SecureString &x, ParserT &parser) {
-  x = parser.template fetch_string<SecureString>();
-}
-
-template <class T, class StorerT>
-void store(const vector<T> &vec, StorerT &storer) {
-  storer.store_binary(narrow_cast<int32>(vec.size()));
-  for (auto &val : vec) {
-    store(val, storer);
-  }
-}
-template <class T, class StorerT>
-void store(const vector<T *> &vec, StorerT &storer) {
-  storer.store_binary(narrow_cast<int32>(vec.size()));
-  for (auto &val : vec) {
-    store(*val, storer);
-  }
-}
-template <class T, class ParserT>
-void parse(vector<T> &vec, ParserT &parser) {
-  uint32 size = parser.fetch_int();
-  if (parser.get_left_len() < size) {
-    parser.set_error("Wrong vector length");
-    return;
-  }
-  vec = vector<T>(size);
-  for (auto &val : vec) {
-    parse(val, parser);
-  }
-}
-
-template <class T, class StorerT>
-void store(const unique_ptr<T> &ptr, StorerT &storer) {
-  CHECK(ptr != nullptr);
-  store(*ptr, storer);
-}
-template <class T, class ParserT>
-void parse(unique_ptr<T> &ptr, ParserT &parser) {
-  CHECK(ptr == nullptr);
-  ptr = make_unique<T>();
-  parse(*ptr, parser);
-}
-
-template <class T, class StorerT>
-void store(const unique_value_ptr<T> &ptr, StorerT &storer) {
-  CHECK(ptr != nullptr);
-  store(*ptr, storer);
-}
-template <class T, class ParserT>
-void parse(unique_value_ptr<T> &ptr, ParserT &parser) {
-  CHECK(ptr == nullptr);
-  ptr = make_unique_value<T>();
-  parse(*ptr, parser);
-}
-
-template <class Key, class Hash, class KeyEqual, class StorerT>
-void store(const FlatHashSet<Key, Hash, KeyEqual> &s, StorerT &storer) {
-  storer.store_binary(narrow_cast<int32>(s.size()));
-  for (auto &val : s) {
-    store(val, storer);
-  }
-}
-template <class Key, class Hash, class KeyEqual, class ParserT>
-void parse(FlatHashSet<Key, Hash, KeyEqual> &s, ParserT &parser) {
-  uint32 size = parser.fetch_int();
-  if (parser.get_left_len() < size) {
-    parser.set_error("Wrong set length");
-    return;
-  }
-  s.clear();
-  for (uint32 i = 0; i < size; i++) {
-    Key val;
-    parse(val, parser);
-    s.insert(std::move(val));
-  }
-}
-
-template <class U, class V, class StorerT>
-void store(const std::pair<U, V> &pair, StorerT &storer) {
-  store(pair.first, storer);
-  store(pair.second, storer);
-}
-template <class U, class V, class ParserT>
-void parse(std::pair<U, V> &pair, ParserT &parser) {
-  parse(pair.first, parser);
-  parse(pair.second, parser);
-}
-
-template <class T, class StorerT>
-std::enable_if_t<std::is_enum<T>::value> store(const T &val, StorerT &storer) {
-  store(static_cast<int32>(val), storer);
-}
-template <class T, class ParserT>
-std::enable_if_t<std::is_enum<T>::value> parse(T &val, ParserT &parser) {
-  int32 result;
-  parse(result, parser);
-  val = static_cast<T>(result);
-}
-
-template <class T, class StorerT>
-std::enable_if_t<!std::is_enum<T>::value> store(const T &val, StorerT &storer) {
-  val.store(storer);
-}
-template <class T, class ParserT>
-std::enable_if_t<!std::is_enum<T>::value> parse(T &val, ParserT &parser) {
-  val.parse(parser);
-}
-
-template <class... Types, class StorerT>
-void store(const Variant<Types...> &variant, StorerT &storer) {
-  store(variant.get_offset(), storer);
-  variant.visit([&storer](auto &&value) {
-    using td::store;
-    store(value, storer);
-  });
-}
-template <class... Types, class ParserT>
-void parse(Variant<Types...> &variant, ParserT &parser) {
-  auto type_offset = parser.fetch_int();
-  if (type_offset < 0 || type_offset >= static_cast<int32>(sizeof...(Types))) {
-    return parser.set_error("Invalid type");
-  }
-  variant.for_each([type_offset, &parser, &variant](int offset, auto *ptr) {
-    using T = std::decay_t<decltype(*ptr)>;
-    if (offset == type_offset) {
-      variant = T();
-      parse(variant.template get<T>(), parser);
-    }
-  });
-}
-
-template <class T>
-string serialize(const T &object) {
-  TlStorerCalcLength calc_length;
-  store(object, calc_length);
-  size_t length = calc_length.get_length();
-
-  string key(length, '\0');
-  if (!is_aligned_pointer<4>(key.data())) {
-    auto ptr = StackAllocator::alloc(length);
-    MutableSlice data = ptr.as_slice();
-    TlStorerUnsafe storer(data.ubegin());
-    store(object, storer);
-    CHECK(storer.get_buf() == data.uend());
-    key.assign(data.begin(), data.size());
-  } else {
-    MutableSlice data = key;
-    TlStorerUnsafe storer(data.ubegin());
-    store(object, storer);
-    CHECK(storer.get_buf() == data.uend());
-  }
-  return key;
-}
-
-template <class T>
-SecureString serialize_secure(const T &object) {
-  TlStorerCalcLength calc_length;
-  store(object, calc_length);
-  size_t length = calc_length.get_length();
-
-  SecureString key(length, '\0');
-  CHECK(is_aligned_pointer<4>(key.data()));
-  MutableSlice data = key.as_mutable_slice();
-  TlStorerUnsafe storer(data.ubegin());
-  store(object, storer);
-  CHECK(storer.get_buf() == data.uend());
-  return key;
-}
-
-template <class T>
-TD_WARN_UNUSED_RESULT Status unserialize(T &object, Slice data) {
-  TlParser parser(data);
-  parse(object, parser);
-  parser.fetch_end();
-  return parser.get_status();
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/tl_parsers.cpp b/third-party/td/td/tdutils/td/utils/tl_parsers.cpp
deleted file mode 100644
index a7c5fa07c9..0000000000
--- a/third-party/td/td/tdutils/td/utils/tl_parsers.cpp
+++ /dev/null
@@ -1,78 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/tl_parsers.h"
-
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/utf8.h"
-
-namespace td {
-
-alignas(4) const unsigned char TlParser::empty_data[sizeof(UInt512)] = {};  // static zero-initialized
-
-TlParser::TlParser(Slice slice) {
-  data_len = left_len = slice.size();
-  if (is_aligned_pointer<4>(slice.begin())) {
-    data = slice.ubegin();
-  } else {
-    int32 *buf;
-    if (data_len <= small_data_array.size() * sizeof(int32)) {
-      buf = &small_data_array[0];
-    } else {
-      LOG(ERROR) << "Unexpected big unaligned data pointer of length " << slice.size() << " at " << slice.begin();
-      data_buf = std::make_unique<int32[]>(1 + data_len / sizeof(int32));
-      buf = data_buf.get();
-    }
-    std::memcpy(buf, slice.begin(), slice.size());
-    data = reinterpret_cast<unsigned char *>(buf);
-  }
-}
-
-void TlParser::set_error(const string &error_message) {
-  if (error.empty()) {
-    CHECK(!error_message.empty());
-    error = error_message;
-    error_pos = data_len - left_len;
-    data = empty_data;
-    left_len = 0;
-    data_len = 0;
-  } else {
-    LOG_CHECK(error_pos != std::numeric_limits<size_t>::max() && data_len == 0 && left_len == 0)
-        << data_len << ' ' << left_len << ' ' << data << ' ' << &empty_data[0] << ' ' << error_pos << ' ' << error;
-    data = empty_data;
-  }
-}
-
-BufferSlice TlBufferParser::as_buffer_slice(Slice slice) {
-  if (slice.empty()) {
-    return BufferSlice();
-  }
-  if (is_aligned_pointer<4>(slice.data())) {
-    return parent_->from_slice(slice);
-  }
-  return BufferSlice(slice);
-}
-
-bool TlBufferParser::is_valid_utf8(CSlice str) const {
-  if (check_utf8(str)) {
-    return true;
-  }
-  LOG(WARNING) << "Wrong UTF-8 string [[" << str << "]] in " << format::as_hex_dump<4>(parent_->as_slice());
-  return false;
-}
-
-size_t TlBufferParser::last_utf8_character_position(Slice str) {
-  CHECK(!str.empty());
-  size_t position = str.size() - 1;
-  while (position != 0 && !is_utf8_character_first_code_unit(static_cast<unsigned char>(str[position]))) {
-    position--;
-  }
-  return position;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/tl_parsers.h b/third-party/td/td/tdutils/td/utils/tl_parsers.h
deleted file mode 100644
index 62576124d2..0000000000
--- a/third-party/td/td/tdutils/td/utils/tl_parsers.h
+++ /dev/null
@@ -1,243 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/UInt.h"
-
-#include <array>
-#include <cstring>
-#include <limits>
-#include <memory>
-#include <string>
-
-namespace td {
-
-class TlParser {
-  const unsigned char *data = nullptr;
-  size_t data_len = 0;
-  size_t left_len = 0;
-  size_t error_pos = std::numeric_limits<size_t>::max();
-  std::string error;
-
-  std::unique_ptr<int32[]> data_buf;
-  static constexpr size_t SMALL_DATA_ARRAY_SIZE = 6;
-  std::array<int32, SMALL_DATA_ARRAY_SIZE> small_data_array;
-
-  alignas(4) static const unsigned char empty_data[sizeof(UInt512)];
-
- public:
-  explicit TlParser(Slice slice);
-
-  TlParser(const TlParser &) = delete;
-  TlParser &operator=(const TlParser &) = delete;
-
-  void set_error(const string &error_message);
-
-  const char *get_error() const {
-    if (error.empty()) {
-      return nullptr;
-    }
-    return error.c_str();
-  }
-
-  size_t get_error_pos() const {
-    return error_pos;
-  }
-
-  Status get_status() const {
-    if (error.empty()) {
-      return Status::OK();
-    }
-    return Status::Error(PSLICE() << error << " at " << error_pos);
-  }
-
-  void check_len(const size_t len) {
-    if (unlikely(left_len < len)) {
-      set_error("Not enough data to read");
-    } else {
-      left_len -= len;
-    }
-  }
-
-  bool can_prefetch_int() const {
-    return get_left_len() >= sizeof(int32);
-  }
-
-  int32 prefetch_int_unsafe() const {
-    int32 result;
-    std::memcpy(&result, data, sizeof(int32));
-    return result;
-  }
-
-  int32 fetch_int_unsafe() {
-    int32 result;
-    std::memcpy(&result, data, sizeof(int32));
-    data += sizeof(int32);
-    return result;
-  }
-
-  int32 fetch_int() {
-    check_len(sizeof(int32));
-    return fetch_int_unsafe();
-  }
-
-  int64 fetch_long_unsafe() {
-    int64 result;
-    std::memcpy(&result, data, sizeof(int64));
-    data += sizeof(int64);
-    return result;
-  }
-
-  int64 fetch_long() {
-    check_len(sizeof(int64));
-    return fetch_long_unsafe();
-  }
-
-  double fetch_double_unsafe() {
-    double result;
-    std::memcpy(&result, data, sizeof(double));
-    data += sizeof(double);
-    return result;
-  }
-
-  double fetch_double() {
-    check_len(sizeof(double));
-    return fetch_double_unsafe();
-  }
-
-  template <class T>
-  T fetch_binary_unsafe() {
-    T result;
-    std::memcpy(&result, data, sizeof(T));
-    data += sizeof(T);
-    return result;
-  }
-
-  template <class T>
-  T fetch_binary() {
-    static_assert(sizeof(T) <= sizeof(empty_data), "too big fetch_binary");
-    //static_assert(sizeof(T) % sizeof(int32) == 0, "wrong call to fetch_binary");
-    check_len(sizeof(T));
-    return fetch_binary_unsafe<T>();
-  }
-
-  template <class T>
-  T fetch_string() {
-    check_len(sizeof(int32));
-    size_t result_len = *data;
-    const unsigned char *result_begin;
-    size_t result_aligned_len;
-    if (result_len < 254) {
-      result_begin = data + 1;
-      result_aligned_len = (result_len >> 2) << 2;
-      data += sizeof(int32);
-    } else if (result_len == 254) {
-      result_len = data[1] + (data[2] << 8) + (data[3] << 16);
-      result_begin = data + 4;
-      result_aligned_len = ((result_len + 3) >> 2) << 2;
-      data += sizeof(int32);
-    } else {
-      check_len(sizeof(int32));
-      auto result_len_uint64 = static_cast<uint64>(data[1]) + (static_cast<uint64>(data[2]) << 8) +
-                               (static_cast<uint64>(data[3]) << 16) + (static_cast<uint64>(data[4]) << 24) +
-                               (static_cast<uint64>(data[5]) << 32) + (static_cast<uint64>(data[6]) << 40) +
-                               (static_cast<uint64>(data[7]) << 48);
-      if (result_len_uint64 > std::numeric_limits<size_t>::max() - 3) {
-        set_error("Too big string found");
-        return T();
-      }
-      result_len = static_cast<size_t>(result_len_uint64);
-      result_begin = data + 8;
-      result_aligned_len = ((result_len + 3) >> 2) << 2;
-      data += sizeof(int64);
-    }
-    check_len(result_aligned_len);
-    if (!error.empty()) {
-      return T();
-    }
-    data += result_aligned_len;
-    return T(reinterpret_cast<const char *>(result_begin), result_len);
-  }
-
-  template <class T>
-  T fetch_string_raw(const size_t size) {
-    //CHECK(size % sizeof(int32) == 0);
-    check_len(size);
-    if (!error.empty()) {
-      return T();
-    }
-    auto result = reinterpret_cast<const char *>(data);
-    data += size;
-    return T(result, size);
-  }
-
-  void fetch_end() {
-    if (left_len) {
-      set_error("Too much data to fetch");
-    }
-  }
-
-  size_t get_left_len() const {
-    return left_len;
-  }
-};
-
-class TlBufferParser : public TlParser {
- public:
-  explicit TlBufferParser(const BufferSlice *buffer_slice) : TlParser(buffer_slice->as_slice()), parent_(buffer_slice) {
-  }
-
-  template <class T>
-  T fetch_string() {
-    auto result = TlParser::fetch_string<T>();
-    for (auto &c : result) {
-      if (c == '\0') {
-        c = ' ';
-      }
-    }
-    if (is_valid_utf8(result)) {
-      return result;
-    }
-    result.resize(last_utf8_character_position(result));
-    if (is_valid_utf8(result)) {
-      return result;
-    }
-
-    return T();
-  }
-
-  template <class T>
-  T fetch_string_raw(const size_t size) {
-    return TlParser::fetch_string_raw<T>(size);
-  }
-
- private:
-  const BufferSlice *parent_;
-
-  BufferSlice as_buffer_slice(Slice slice);
-
-  bool is_valid_utf8(CSlice str) const;
-
-  static size_t last_utf8_character_position(Slice str);
-};
-
-template <>
-inline BufferSlice TlBufferParser::fetch_string<BufferSlice>() {
-  return as_buffer_slice(TlParser::fetch_string<Slice>());
-}
-
-template <>
-inline BufferSlice TlBufferParser::fetch_string_raw<BufferSlice>(const size_t size) {
-  return as_buffer_slice(TlParser::fetch_string_raw<Slice>(size));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/tl_storers.h b/third-party/td/td/tdutils/td/utils/tl_storers.h
deleted file mode 100644
index a72c03a21c..0000000000
--- a/third-party/td/td/tdutils/td/utils/tl_storers.h
+++ /dev/null
@@ -1,160 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StorerBase.h"
-
-#include <cstring>
-
-namespace td {
-
-class TlStorerUnsafe {
-  unsigned char *buf_;
-
- public:
-  explicit TlStorerUnsafe(unsigned char *buf) : buf_(buf) {
-  }
-
-  TlStorerUnsafe(const TlStorerUnsafe &) = delete;
-  TlStorerUnsafe &operator=(const TlStorerUnsafe &) = delete;
-
-  template <class T>
-  void store_binary(const T &x) {
-    std::memcpy(buf_, &x, sizeof(T));
-    buf_ += sizeof(T);
-  }
-
-  void store_int(int32 x) {
-    store_binary<int32>(x);
-  }
-
-  void store_long(int64 x) {
-    store_binary<int64>(x);
-  }
-
-  void store_slice(Slice slice) {
-    std::memcpy(buf_, slice.begin(), slice.size());
-    buf_ += slice.size();
-  }
-
-  void store_storer(const Storer &storer) {
-    size_t size = storer.store(buf_);
-    buf_ += size;
-  }
-
-  template <class T>
-  void store_string(const T &str) {
-    size_t len = str.size();
-    if (len < 254) {
-      *buf_++ = static_cast<unsigned char>(len);
-      len++;
-    } else if (len < (1 << 24)) {
-      *buf_++ = static_cast<unsigned char>(254);
-      *buf_++ = static_cast<unsigned char>(len & 255);
-      *buf_++ = static_cast<unsigned char>((len >> 8) & 255);
-      *buf_++ = static_cast<unsigned char>(len >> 16);
-    } else if (static_cast<uint64>(len) < (static_cast<uint64>(1) << 32)) {
-      *buf_++ = static_cast<unsigned char>(255);
-      *buf_++ = static_cast<unsigned char>(len & 255);
-      *buf_++ = static_cast<unsigned char>((len >> 8) & 255);
-      *buf_++ = static_cast<unsigned char>((len >> 16) & 255);
-      *buf_++ = static_cast<unsigned char>((len >> 24) & 255);
-      *buf_++ = static_cast<unsigned char>(0);
-      *buf_++ = static_cast<unsigned char>(0);
-      *buf_++ = static_cast<unsigned char>(0);
-    } else {
-      LOG(FATAL) << "String size " << len << " is too big to be stored";
-    }
-    std::memcpy(buf_, str.data(), str.size());
-    buf_ += str.size();
-
-    switch (len & 3) {
-      case 1:
-        *buf_++ = 0;
-        // fallthrough
-      case 2:
-        *buf_++ = 0;
-        // fallthrough
-      case 3:
-        *buf_++ = 0;
-    }
-  }
-
-  unsigned char *get_buf() const {
-    return buf_;
-  }
-};
-
-class TlStorerCalcLength {
-  size_t length = 0;
-
- public:
-  TlStorerCalcLength() = default;
-  TlStorerCalcLength(const TlStorerCalcLength &) = delete;
-  TlStorerCalcLength &operator=(const TlStorerCalcLength &) = delete;
-
-  template <class T>
-  void store_binary(const T &x) {
-    length += sizeof(T);
-  }
-
-  void store_int(int32 x) {
-    store_binary<int32>(x);
-  }
-
-  void store_long(int64 x) {
-    store_binary<int64>(x);
-  }
-
-  void store_slice(Slice slice) {
-    length += slice.size();
-  }
-
-  void store_storer(const Storer &storer) {
-    length += storer.size();
-  }
-
-  template <class T>
-  void store_string(const T &str) {
-    size_t add = str.size();
-    if (add < 254) {
-      add += 1;
-    } else if (add < (1 << 24)) {
-      add += 4;
-    } else {
-      add += 8;
-    }
-    add = (add + 3) & -4;
-    length += add;
-  }
-
-  size_t get_length() const {
-    return length;
-  }
-};
-
-template <class T>
-size_t tl_calc_length(const T &data) {
-  TlStorerCalcLength storer_calc_length;
-  data.store(storer_calc_length);
-  return storer_calc_length.get_length();
-}
-
-template <class T>
-size_t tl_store_unsafe(const T &data, unsigned char *dst) TD_WARN_UNUSED_RESULT;
-
-template <class T>
-size_t tl_store_unsafe(const T &data, unsigned char *dst) {
-  TlStorerUnsafe storer_unsafe(dst);
-  data.store(storer_unsafe);
-  return static_cast<size_t>(storer_unsafe.get_buf() - dst);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/translit.cpp b/third-party/td/td/tdutils/td/utils/translit.cpp
deleted file mode 100644
index bdbe84eab3..0000000000
--- a/third-party/td/td/tdutils/td/utils/translit.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/translit.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/misc.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <utility>
-
-namespace td {
-
-static const FlatHashMap<uint32, string> &get_en_to_ru_simple_rules() {
-  static const FlatHashMap<uint32, string> rules{
-      {'a', "а"}, {'b', "б"}, {'c', "к"}, {'d', "д"}, {'e', "е"}, {'f', "ф"},  {'g', "г"}, {'h', "х"}, {'i', "и"},
-      {'j', "й"}, {'k', "к"}, {'l', "л"}, {'m', "м"}, {'n', "н"}, {'o', "о"},  {'p', "п"}, {'q', "к"}, {'r', "р"},
-      {'s', "с"}, {'t', "т"}, {'u', "у"}, {'v', "в"}, {'w', "в"}, {'x', "кс"}, {'y', "и"}, {'z', "з"}};
-  return rules;
-}
-
-static const std::vector<std::pair<string, string>> &get_en_to_ru_complex_rules() {
-  static const std::vector<std::pair<string, string>> rules{
-      {"ch", "ч"}, {"ei", "ей"}, {"ey", "ей"}, {"ia", "ия"},  {"iy", "ий"}, {"jo", "е"},
-      {"ju", "ю"}, {"ja", "я"},  {"kh", "х"},  {"shch", "щ"}, {"sh", "ш"},  {"sch", "щ"},
-      {"ts", "ц"}, {"yo", "е"},  {"yu", "ю"},  {"ya", "я"},   {"zh", "ж"}};
-  return rules;
-}
-
-static const FlatHashMap<uint32, string> &get_ru_to_en_simple_rules() {
-  static const FlatHashMap<uint32, string> rules{
-      {0x430, "a"},  {0x431, "b"},  {0x432, "v"},  {0x433, "g"},  {0x434, "d"},  {0x435, "e"},   {0x451, "e"},
-      {0x436, "zh"}, {0x437, "z"},  {0x438, "i"},  {0x439, "y"},  {0x43a, "k"},  {0x43b, "l"},   {0x43c, "m"},
-      {0x43d, "n"},  {0x43e, "o"},  {0x43f, "p"},  {0x440, "r"},  {0x441, "s"},  {0x442, "t"},   {0x443, "u"},
-      {0x444, "f"},  {0x445, "kh"}, {0x446, "ts"}, {0x447, "ch"}, {0x448, "sh"}, {0x449, "sch"}, {0x44a, ""},
-      {0x44b, "y"},  {0x44c, ""},   {0x44d, "e"},  {0x44e, "yu"}, {0x44f, "ya"}};
-  return rules;
-}
-
-static const std::vector<std::pair<string, string>> &get_ru_to_en_complex_rules() {
-  static const std::vector<std::pair<string, string>> rules{
-      {"ий", "y"}, {"ия", "ia"}, {"кс", "x"}, {"yo", "e"}, {"jo", "e"}};
-  return rules;
-}
-
-static void add_word_transliterations(vector<string> &result, Slice word, bool allow_partial,
-                                      const FlatHashMap<uint32, string> &simple_rules,
-                                      const vector<std::pair<string, string>> &complex_rules) {
-  string s;
-  auto pos = word.ubegin();
-  auto end = word.uend();
-  while (pos != end) {
-    uint32 code;
-    pos = next_utf8_unsafe(pos, &code);
-    auto it = simple_rules.find(code);
-    if (it != simple_rules.end()) {
-      s += it->second;
-    } else {
-      append_utf8_character(s, code);
-    }
-  }
-  if (!s.empty()) {
-    result.push_back(std::move(s));
-    s.clear();
-  }
-
-  pos = word.ubegin();
-  while (pos != end) {
-    auto suffix = Slice(pos, end);
-    bool found = false;
-    for (auto &rule : complex_rules) {
-      if (begins_with(suffix, rule.first)) {
-        found = true;
-        pos += rule.first.size();
-        s.append(rule.second);
-        break;
-      }
-      if (allow_partial && begins_with(rule.first, suffix)) {
-        result.push_back(s + rule.second);
-      }
-    }
-    if (found) {
-      continue;
-    }
-
-    uint32 code;
-    pos = next_utf8_unsafe(pos, &code);
-    auto it = simple_rules.find(code);
-    if (it != simple_rules.end()) {
-      s += it->second;
-    } else {
-      append_utf8_character(s, code);
-    }
-  }
-  if (!s.empty()) {
-    result.push_back(std::move(s));
-  }
-}
-
-vector<string> get_word_transliterations(Slice word, bool allow_partial) {
-  vector<string> result;
-
-  add_word_transliterations(result, word, allow_partial, get_en_to_ru_simple_rules(), get_en_to_ru_complex_rules());
-  add_word_transliterations(result, word, allow_partial, get_ru_to_en_simple_rules(), get_ru_to_en_complex_rules());
-
-  td::unique(result);
-  return result;
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/translit.h b/third-party/td/td/tdutils/td/utils/translit.h
deleted file mode 100644
index 8c26a32395..0000000000
--- a/third-party/td/td/tdutils/td/utils/translit.h
+++ /dev/null
@@ -1,16 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-vector<string> get_word_transliterations(Slice word, bool allow_partial);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/type_traits.h b/third-party/td/td/tdutils/td/utils/type_traits.h
deleted file mode 100644
index 7ec72fb5f6..0000000000
--- a/third-party/td/td/tdutils/td/utils/type_traits.h
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/int_types.h"
-#include "td/utils/port/platform.h"
-
-#include <type_traits>
-
-namespace td {
-
-template <class FunctionT>
-struct member_function_class;
-
-template <class ReturnType, class Type, class... Args>
-struct member_function_class<ReturnType (Type::*)(Args...)> {
-  using type = Type;
-  static constexpr size_t argument_count() {
-    return sizeof...(Args);
-  }
-};
-
-template <class FunctionT>
-using member_function_class_t = typename member_function_class<FunctionT>::type;
-
-template <class FunctionT>
-constexpr size_t member_function_argument_count() {
-  return member_function_class<FunctionT>::argument_count();
-}
-
-// there is no std::is_trivially_copyable in libstdc++ before 5.0
-#if __GLIBCXX__
-#if TD_CLANG || (TD_GCC && __GNUC__ >= 5)  // but clang >= 3.0 and g++ >= 5.0 supports __is_trivially_copyable
-#define TD_IS_TRIVIALLY_COPYABLE(T) __is_trivially_copyable(T)
-#else
-#define TD_IS_TRIVIALLY_COPYABLE(T) __has_trivial_copy(T)
-#endif
-#else
-#define TD_IS_TRIVIALLY_COPYABLE(T) ::std::is_trivially_copyable<T>::value
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/uint128.h b/third-party/td/td/tdutils/td/utils/uint128.h
deleted file mode 100644
index ca64dbf90c..0000000000
--- a/third-party/td/td/tdutils/td/utils/uint128.h
+++ /dev/null
@@ -1,293 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/bits.h"
-#include "td/utils/common.h"
-
-#include <limits>
-#include <type_traits>
-
-namespace td {
-
-class uint128_emulated {
- public:
-  using uint128 = uint128_emulated;
-  uint128_emulated(uint64 hi, uint64 lo) : hi_(hi), lo_(lo) {
-  }
-  template <class T, typename = std::enable_if_t<std::is_unsigned<T>::value>>
-  uint128_emulated(T lo) : uint128_emulated(0, lo) {
-  }
-  uint128_emulated() = default;
-
-  uint64 hi() const {
-    return hi_;
-  }
-  uint64 lo() const {
-    return lo_;
-  }
-  uint64 rounded_hi() const {
-    return hi_ + (lo_ >> 63);
-  }
-  static uint128 from_signed(int64 x) {
-    if (x >= 0) {
-      return uint128(0, x);
-    }
-    return uint128(std::numeric_limits<uint64>::max(), static_cast<uint64>(x));
-  }
-  static uint128 from_unsigned(uint64 x) {
-    return uint128(0, x);
-  }
-
-  uint128 add(uint128 other) const {
-    uint128 res(other.hi() + hi(), other.lo() + lo());
-    if (res.lo() < lo()) {
-      res.hi_++;
-    }
-    return res;
-  }
-
-  uint128 shl(int cnt) const {
-    if (cnt == 0) {
-      return *this;
-    }
-    if (cnt < 64) {
-      return uint128((hi() << cnt) | (lo() >> (64 - cnt)), lo() << cnt);
-    }
-    if (cnt < 128) {
-      return uint128(lo() << (cnt - 64), 0);
-    }
-    return uint128();
-  }
-  uint128 shr(int cnt) const {
-    if (cnt == 0) {
-      return *this;
-    }
-    if (cnt < 64) {
-      return uint128(hi() >> cnt, (lo() >> cnt) | (hi() << (64 - cnt)));
-    }
-    if (cnt < 128) {
-      return uint128(0, hi() >> (cnt - 64));
-    }
-    return uint128();
-  }
-
-  uint128 mult(uint128 other) const {
-    uint64 a_lo = lo() & 0xffffffff;
-    uint64 a_hi = lo() >> 32;
-    uint64 b_lo = other.lo() & 0xffffffff;
-    uint64 b_hi = other.lo() >> 32;
-    uint128 res(lo() * other.hi() + hi() * other.lo() + a_hi * b_hi, a_lo * b_lo);
-    uint128 add1(0, a_lo * b_hi);
-    uint128 add2(0, a_hi * b_lo);
-    return res.add(add1.shl(32)).add(add2.shl(32));
-  }
-  uint128 mult(uint64 other) const {
-    return mult(uint128(0, other));
-  }
-  uint128 mult_signed(int64 other) const {
-    return mult(uint128::from_signed(other));
-  }
-  bool is_zero() const {
-    return lo() == 0 && hi() == 0;
-  }
-  uint128 sub(uint128 other) const {
-    uint32 carry = 0;
-    if (other.lo() > lo()) {
-      carry = 1;
-    }
-    return uint128(hi() - other.hi() - carry, lo() - other.lo());
-  }
-  void divmod(uint128 other, uint128 *div_res, uint128 *mod_res) const {
-    CHECK(!other.is_zero());
-
-    auto from = *this;
-    auto ctz = from.count_leading_zeroes();
-    auto other_ctz = other.count_leading_zeroes();
-    if (ctz > other_ctz) {
-      *div_res = uint128();
-      *mod_res = from;
-      return;
-    }
-    auto shift = other_ctz - ctz;
-    auto res = uint128();
-    for (int i = shift; i >= 0; i--) {
-      auto sub = other.shl(i);
-      res = res.shl(1);
-      if (from.greater_or_equal(sub)) {
-        from = from.sub(sub);
-        res = res.set_lower_bit();
-      }
-    }
-
-    *div_res = res;
-    *mod_res = from;
-  }
-  uint128 div(uint128 other) const {
-    uint128 a;
-    uint128 b;
-    divmod(other, &a, &b);
-    return a;
-  }
-  uint128 mod(uint128 other) const {
-    uint128 a;
-    uint128 b;
-    divmod(other, &a, &b);
-    return b;
-  }
-
-  void divmod_signed(int64 y, int64 *quot, int64 *rem) const {
-    CHECK(y != 0);
-    auto x = *this;
-    int x_sgn = x.is_negative();
-    int y_sgn = y < 0;
-    if (x_sgn) {
-      x = x.negate();
-    }
-    uint128 uy = from_signed(y);
-    if (uy.is_negative()) {
-      uy = uy.negate();
-    }
-
-    uint128 t_quot;
-    uint128 t_mod;
-    x.divmod(uy, &t_quot, &t_mod);
-    *quot = t_quot.lo();
-    *rem = t_mod.lo();
-    if (x_sgn != y_sgn) {
-      *quot = -*quot;
-    }
-    if (x_sgn) {
-      *rem = -*rem;
-    }
-  }
-
- private:
-  uint64 hi_{0};
-  uint64 lo_{0};
-
-  bool is_negative() const {
-    return (hi_ >> 63) == 1;
-  }
-
-  int32 count_leading_zeroes() const {
-    if (hi() == 0) {
-      return 64 + count_leading_zeroes64(lo());
-    }
-    return count_leading_zeroes64(hi());
-  }
-  uint128 set_lower_bit() const {
-    return uint128(hi(), lo() | 1);
-  }
-  bool greater_or_equal(uint128 other) const {
-    return hi() > other.hi() || (hi() == other.hi() && lo() >= other.lo());
-  }
-  uint128 negate() const {
-    uint128 res(~hi(), ~lo() + 1);
-    if (res.lo() == 0) {
-      return uint128(res.hi() + 1, 0);
-    }
-    return res;
-  }
-};
-
-#if TD_HAVE_INT128
-class uint128_intrinsic {
- public:
-  using ValueT = unsigned __int128;
-  using uint128 = uint128_intrinsic;
-  explicit uint128_intrinsic(ValueT value) : value_(value) {
-  }
-  uint128_intrinsic(uint64 hi, uint64 lo) : value_((ValueT(hi) << 64) | lo) {
-  }
-  uint128_intrinsic() = default;
-
-  static uint128 from_signed(int64 x) {
-    return uint128(static_cast<ValueT>(x));
-  }
-  static uint128 from_unsigned(uint64 x) {
-    return uint128(static_cast<ValueT>(x));
-  }
-  uint64 hi() const {
-    return uint64(value() >> 64);
-  }
-  uint64 lo() const {
-    return uint64(value() & std::numeric_limits<uint64>::max());
-  }
-  uint64 rounded_hi() const {
-    return uint64((value() + (1ULL << 63)) >> 64);
-  }
-  uint128 add(uint128 other) const {
-    return uint128(value() + other.value());
-  }
-  uint128 sub(uint128 other) const {
-    return uint128(value() - other.value());
-  }
-
-  uint128 shl(int cnt) const {
-    if (cnt >= 128) {
-      return uint128();
-    }
-    return uint128(value() << cnt);
-  }
-
-  uint128 shr(int cnt) const {
-    if (cnt >= 128) {
-      return uint128();
-    }
-    return uint128(value() >> cnt);
-  }
-
-  uint128 mult(uint128 other) const {
-    return uint128(value() * other.value());
-  }
-  uint128 mult(uint64 other) const {
-    return uint128(value() * other);
-  }
-  uint128 mult_signed(int64 other) const {
-    return uint128(value() * other);
-  }
-  bool is_zero() const {
-    return value() == 0;
-  }
-  void divmod(uint128 other, uint128 *div_res, uint128 *mod_res) const {
-    CHECK(!other.is_zero());
-    *div_res = uint128(value() / other.value());
-    *mod_res = uint128(value() % other.value());
-  }
-  uint128 div(uint128 other) const {
-    CHECK(!other.is_zero());
-    return uint128(value() / other.value());
-  }
-  uint128 mod(uint128 other) const {
-    CHECK(!other.is_zero());
-    return uint128(value() % other.value());
-  }
-  void divmod_signed(int64 y, int64 *quot, int64 *rem) const {
-    CHECK(y != 0);
-    *quot = static_cast<int64>(signed_value() / y);
-    *rem = static_cast<int64>(signed_value() % y);
-  }
-
- private:
-  unsigned __int128 value_{0};
-  ValueT value() const {
-    return value_;
-  }
-  __int128 signed_value() const {
-    return static_cast<__int128>(value());
-  }
-};
-#endif
-
-#if TD_HAVE_INT128
-using uint128 = uint128_intrinsic;
-#else
-using uint128 = uint128_emulated;
-#endif
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/unicode.cpp b/third-party/td/td/tdutils/td/utils/unicode.cpp
deleted file mode 100644
index 0c2a39d952..0000000000
--- a/third-party/td/td/tdutils/td/utils/unicode.cpp
+++ /dev/null
@@ -1,1361 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/unicode.h"
-
-#include "td/utils/logging.h"
-
-namespace td {
-
-// list of [(range_begin << 5) + range_type]
-static const uint32 unicode_simple_category_ranges[] = {
-    0,       1028,    1056,    1538,    1856,    2081,    2912,      3105,    3936,    5124,    5152,    5441,
-    5472,    5699,    5760,    5793,    5824,    5923,    5953,      5984,    6019,    6112,    6145,    6880,
-    6913,    7904,    7937,    22592,   22721,   23104,   23553,     23712,   23937,   23968,   24001,   24032,
-    28161,   28320,   28353,   28416,   28481,   28608,   28641,     28672,   28865,   28896,   28929,   29024,
-    29057,   29088,   29121,   29760,   29793,   32448,   32481,     36928,   37185,   42496,   42529,   43744,
-    43809,   43840,   44033,   45344,   47617,   48480,   48609,     48736,   50177,   51552,   52226,   52544,
-    52673,   52736,   52769,   55936,   55969,   56000,   56481,     56544,   56769,   56834,   57153,   57248,
-    57313,   57344,   57857,   57888,   57921,   58880,   59809,     62656,   63009,   63040,   63490,   63809,
-    64864,   65153,   65216,   65345,   65376,   65537,   66240,     66369,   66400,   66689,   66720,   66817,
-    66848,   67585,   68384,   68609,   68960,   69121,   69888,     69921,   70112,   70657,   72000,   73857,
-    75584,   75681,   75712,   76289,   76320,   76545,   76864,     76994,   77312,   77345,   77856,   77985,
-    78240,   78305,   78368,   78433,   79136,   79169,   79392,     79425,   79456,   79553,   79680,   79777,
-    79808,   80321,   80352,   80769,   80832,   80865,   80960,     81090,   81409,   81472,   81539,   81728,
-    81793,   81824,   82081,   82272,   82401,   82464,   82529,     83232,   83265,   83488,   83521,   83584,
-    83617,   83680,   83713,   83776,   84769,   84896,   84929,     84960,   85186,   85504,   85569,   85664,
-    86177,   86464,   86497,   86592,   86625,   87328,   87361,     87584,   87617,   87680,   87713,   87872,
-    87969,   88000,   88577,   88608,   89089,   89152,   89282,     89600,   89889,   89920,   90273,   90528,
-    90593,   90656,   90721,   91424,   91457,   91680,   91713,     91776,   91809,   91968,   92065,   92096,
-    93057,   93120,   93153,   93248,   93378,   93696,   93729,     93763,   93952,   94305,   94336,   94369,
-    94560,   94657,   94752,   94785,   94912,   95009,   95072,     95105,   95136,   95169,   95232,   95329,
-    95392,   95489,   95584,   95681,   96064,   96769,   96800,     97474,   97795,   97888,   98465,   98720,
-    98753,   98848,   98881,   99616,   99649,   100160,  100257,    100288,  101121,  101216,  101281,  101312,
-    101377,  101440,  101570,  101888,  102147,  102368,  102401,    102432,  102561,  102816,  102849,  102944,
-    102977,  103712,  103745,  104064,  104097,  104256,  104353,    104384,  105377,  105440,  105473,  105536,
-    105666,  105984,  106017,  106080,  106625,  106912,  106945,    107040,  107073,  108384,  108449,  108480,
-    108993,  109024,  109185,  109280,  109315,  109537,  109632,    109762,  110083,  110368,  110401,  110592,
-    110753,  111328,  111425,  112192,  112225,  112512,  112545,    112576,  112641,  112864,  113858,  114176,
-    114721,  116256,  116289,  116352,  116737,  116960,  117250,    117568,  118817,  118880,  118913,  118944,
-    118977,  119136,  119169,  119936,  119969,  120000,  120033,    120352,  120385,  120448,  120737,  120768,
-    120833,  120992,  121025,  121056,  121346,  121664,  121729,    121856,  122881,  122912,  123906,  124227,
-    124544,  124929,  125184,  125217,  126368,  127233,  127392,    131073,  132448,  133089,  133122,  133440,
-    133633,  133824,  133953,  134080,  134177,  134208,  134305,    134368,  134593,  134688,  134817,  135232,
-    135617,  135648,  135682,  136000,  136193,  137408,  137441,    137472,  137633,  137664,  137729,  139104,
-    139137,  149792,  149825,  149952,  150017,  150240,  150273,    150304,  150337,  150464,  150529,  151840,
-    151873,  152000,  152065,  153120,  153153,  153280,  153345,    153568,  153601,  153632,  153665,  153792,
-    153857,  154336,  154369,  156192,  156225,  156352,  156417,    158560,  159011,  159648,  159745,  160256,
-    160769,  163520,  163585,  163776,  163873,  183712,  183777,    184324,  184353,  185184,  185345,  187744,
-    187843,  187937,  188192,  188417,  188992,  189409,  190016,    190465,  191040,  191489,  191904,  191937,
-    192032,  192513,  194176,  195297,  195328,  195457,  195488,    195586,  195904,  196099,  196416,  197122,
-    197440,  197633,  200480,  200705,  200864,  200929,  202016,    202049,  202080,  202241,  204480,  204801,
-    205792,  207042,  207361,  208320,  208385,  208544,  208897,    210304,  210433,  211264,  211458,  211779,
-    211808,  212993,  213728,  214017,  215712,  217090,  217408,    217602,  217920,  218337,  218368,  221345,
-    222848,  223393,  223648,  223746,  224064,  225377,  226336,    226753,  226818,  227137,  228544,  229377,
-    230528,  231426,  231744,  231841,  231938,  232257,  233408,    233473,  233824,  233985,  235360,  235425,
-    235520,  236833,  236960,  236993,  237184,  237217,  237280,    237377,  237408,  237569,  243712,  245761,
-    254656,  254721,  254912,  254977,  256192,  256257,  256448,    256513,  256768,  256801,  256832,  256865,
-    256896,  256929,  256960,  256993,  257984,  258049,  259744,    259777,  260000,  260033,  260064,  260161,
-    260256,  260289,  260512,  260609,  260736,  260801,  260992,    261121,  261536,  261697,  261792,  261825,
-    262048,  262148,  262496,  263428,  263488,  263652,  263680,    265188,  265216,  265731,  265761,  265792,
-    265859,  266048,  266209,  266243,  266560,  266753,  267168,    270401,  270432,  270561,  270592,  270657,
-    270976,  271009,  271040,  271137,  271296,  271489,  271520,    271553,  271584,  271617,  271648,  271681,
-    271808,  271841,  272192,  272257,  272384,  272545,  272704,    272833,  272864,  272899,  274529,  274595,
-    274752,  297987,  299904,  302403,  303104,  323267,  324224,    360449,  367776,  367969,  368096,  368193,
-    368256,  368547,  368576,  368641,  369856,  369889,  369920,    370081,  370112,  370177,  371968,  372193,
-    372224,  372737,  373472,  373761,  373984,  374017,  374240,    374273,  374496,  374529,  374752,  374785,
-    375008,  375041,  375264,  375297,  375520,  375553,  375776,    378337,  378368,  393220,  393248,  393377,
-    393443,  393472,  394275,  394560,  394785,  394944,  395011,    395105,  395168,  395297,  398048,  398241,
-    398336,  398369,  401248,  401281,  401408,  401569,  402944,    402977,  405984,  406083,  406208,  406529,
-    407552,  409089,  409600,  410627,  410944,  411907,  412160,    412195,  412672,  413699,  414016,  415267,
-    415744,  425985,  636928,  638977,  1348000, 1350145, 1351616,   1351681, 1360288, 1360385, 1360898, 1361217,
-    1361280, 1361921, 1363424, 1363937, 1364928, 1364993, 1367235,   1367552, 1368801, 1369088, 1369153, 1372448,
-    1372513, 1374656, 1374721, 1374784, 1374817, 1374848, 1374881,   1375136, 1375809, 1376320, 1376353, 1376448,
-    1376481, 1376608, 1376641, 1377376, 1377795, 1377984, 1378305,   1379968, 1380417, 1382016, 1382914, 1383232,
-    1384001, 1384192, 1384289, 1384320, 1384353, 1384416, 1384450,   1384769, 1385664, 1385985, 1386720, 1387521,
-    1388448, 1388673, 1390176, 1391073, 1391106, 1391424, 1391617,   1391776, 1391809, 1392130, 1392449, 1392608,
-    1392641, 1393952, 1394689, 1394784, 1394817, 1395072, 1395202,   1395520, 1395713, 1396448, 1396545, 1396576,
-    1396673, 1398272, 1398305, 1398336, 1398433, 1398496, 1398561,   1398720, 1398785, 1398816, 1398849, 1398880,
-    1399649, 1399744, 1399809, 1400160, 1400385, 1400480, 1400865,   1401056, 1401121, 1401312, 1401377, 1401568,
-    1401857, 1402080, 1402113, 1402336, 1402369, 1403744, 1403777,   1404224, 1404417, 1408096, 1408514, 1408832,
-    1409025, 1766528, 1766913, 1767648, 1767777, 1769344, 2039809,   2051520, 2051585, 2054976, 2056193, 2056416,
-    2056801, 2056960, 2057121, 2057152, 2057185, 2057504, 2057537,   2057952, 2057985, 2058144, 2058177, 2058208,
-    2058241, 2058304, 2058337, 2058400, 2058433, 2061888, 2062945,   2074560, 2075137, 2077184, 2077249, 2078976,
-    2080257, 2080640, 2084353, 2084512, 2084545, 2088864, 2089474,   2089792, 2090017, 2090848, 2091041, 2091872,
-    2092225, 2095072, 2095169, 2095360, 2095425, 2095616, 2095681,   2095872, 2095937, 2096032, 2097153, 2097536,
-    2097569, 2098400, 2098433, 2099040, 2099073, 2099136, 2099169,   2099648, 2099713, 2100160, 2101249, 2105184,
-    2105571, 2107008, 2107395, 2109216, 2109763, 2109824, 2117633,   2118560, 2118657, 2120224, 2120739, 2121600,
-    2121729, 2122755, 2122880, 2123169, 2123811, 2123841, 2124099,   2124128, 2124289, 2125504, 2125825, 2126784,
-    2126849, 2128000, 2128129, 2128384, 2128419, 2128576, 2129921,   2134976, 2135042, 2135360, 2135553, 2136704,
-    2136833, 2137984, 2138113, 2139392, 2139649, 2141312, 2141697,   2142048, 2142081, 2142560, 2142593, 2142816,
-    2142849, 2142912, 2142945, 2143296, 2143329, 2143808, 2143841,   2144064, 2144097, 2144160, 2144257, 2145920,
-    2146305, 2156256, 2156545, 2157248, 2157569, 2157824, 2158593,   2158784, 2158817, 2160160, 2160193, 2160480,
-    2162689, 2162880, 2162945, 2162976, 2163009, 2164416, 2164449,   2164512, 2164609, 2164640, 2164705, 2165440,
-    2165507, 2165761, 2166496, 2166563, 2166785, 2167776, 2168035,   2168320, 2169857, 2170464, 2170497, 2170560,
-    2170723, 2170881, 2171587, 2171776, 2171905, 2172736, 2174977,   2176768, 2176899, 2176961, 2177027, 2177536,
-    2177603, 2179073, 2179104, 2179585, 2179712, 2179745, 2179840,   2179873, 2180800, 2181123, 2181408, 2182145,
-    2183075, 2183136, 2183169, 2184099, 2184192, 2185217, 2185472,   2185505, 2186400, 2186595, 2186752, 2187265,
-    2188992, 2189313, 2190016, 2190083, 2190337, 2190944, 2191107,   2191361, 2191936, 2192675, 2192896, 2195457,
-    2197792, 2199553, 2201184, 2201601, 2203232, 2203459, 2203649,   2204800, 2205186, 2205504, 2205698, 2206017,
-    2206912, 2207201, 2207936, 2214915, 2215904, 2215937, 2217280,   2217473, 2217536, 2218049, 2218144, 2220033,
-    2220963, 2221281, 2221312, 2221569, 2222272, 2222627, 2222752,   2223617, 2224192, 2225665, 2226339, 2226560,
-    2227201, 2227936, 2228321, 2230016, 2230851, 2231490, 2231808,   2231841, 2231904, 2231969, 2232000, 2232417,
-    2233856, 2234881, 2235680, 2235906, 2236224, 2236513, 2237664,   2238146, 2238464, 2238593, 2238624, 2238689,
-    2238720, 2238977, 2240096, 2240193, 2240224, 2240609, 2242144,   2242593, 2242720, 2243074, 2243393, 2243424,
-    2243457, 2243488, 2243619, 2244256, 2244609, 2245184, 2245217,   2246016, 2246625, 2246688, 2248705, 2248928,
-    2248961, 2248992, 2249025, 2249152, 2249185, 2249664, 2249697,   2250016, 2250241, 2251744, 2252290, 2252608,
-    2252961, 2253216, 2253281, 2253344, 2253409, 2254112, 2254145,   2254368, 2254401, 2254464, 2254497, 2254656,
-    2254753, 2254784, 2255361, 2255392, 2255777, 2255936, 2256897,   2257216, 2257249, 2257280, 2257345, 2257376,
-    2257409, 2258624, 2258657, 2258688, 2259489, 2259520, 2259553,   2259584, 2260993, 2262688, 2263265, 2263392,
-    2263554, 2263872, 2264033, 2264128, 2265089, 2266624, 2267265,   2267328, 2267361, 2267392, 2267650, 2267968,
-    2273281, 2274784, 2276097, 2276224, 2277377, 2278912, 2279553,   2279584, 2279938, 2280256, 2281473, 2282848,
-    2283265, 2283296, 2283522, 2283840, 2284034, 2284672, 2285569,   2286432, 2287106, 2287427, 2287488, 2287617,
-    2287840, 2293761, 2295168, 2298881, 2300930, 2301251, 2301536,   2301921, 2302176, 2302241, 2302272, 2302337,
-    2302592, 2302625, 2302688, 2302721, 2303488, 2303969, 2304000,   2304033, 2304064, 2304514, 2304832, 2307073,
-    2307328, 2307393, 2308640, 2309153, 2309184, 2309217, 2309248,   2310145, 2310176, 2310497, 2311776, 2312001,
-    2312032, 2312705, 2312736, 2313089, 2314560, 2315169, 2315200,   2315777, 2318112, 2324481, 2325536, 2326018,
-    2326336, 2326529, 2326816, 2326849, 2328032, 2328577, 2328608,   2329090, 2329411, 2330016, 2330177, 2331136,
-    2334721, 2334944, 2334977, 2335040, 2335073, 2336288, 2336961,   2336992, 2337282, 2337600, 2337793, 2337984,
-    2338017, 2338080, 2338113, 2339136, 2339585, 2339616, 2339842,   2340160, 2350081, 2350688, 2351169, 2351200,
-    2351233, 2351648, 2351681, 2352768, 2353666, 2353984, 2356737,   2356768, 2357251, 2357920, 2359297, 2388800,
-    2392067, 2395616, 2396161, 2402432, 2486785, 2489888, 2490369,   2524672, 2525217, 2525408, 2526209, 2654048,
-    2654209, 2672864, 2891777, 2892736, 2893314, 2893632, 2949121,   2967328, 2967553, 2968544, 2968578, 2968896,
-    2969089, 2971616, 2971650, 2971968, 2972161, 2973120, 2973697,   2975232, 2975745, 2975872, 2976258, 2976576,
-    2976611, 2976832, 2976865, 2977536, 2977697, 2978304, 2992129,   2993568, 2993666, 2993984, 3000321, 3002371,
-    3003104, 3006465, 3008864, 3009025, 3009056, 3011169, 3011584,   3013633, 3013696, 3013729, 3013760, 3014657,
-    3211008, 3211265, 3250880, 3252193, 3252512, 3538433, 3538560,   3538593, 3538816, 3538849, 3538912, 3538945,
-    3548256, 3548737, 3548768, 3549697, 3549792, 3549857, 3549888,   3550337, 3550464, 3550721, 3563392, 3637249,
-    3640672, 3640833, 3641248, 3641345, 3641632, 3641857, 3642176,   3776002, 3776320, 3823619, 3824256, 3824643,
-    3825280, 3828739, 3829536, 3833857, 3836576, 3836609, 3838880,   3838913, 3838976, 3839041, 3839072, 3839137,
-    3839200, 3839265, 3839392, 3839425, 3839808, 3839841, 3839872,   3839905, 3840128, 3840161, 3842240, 3842273,
-    3842400, 3842465, 3842720, 3842753, 3842976, 3843009, 3843904,   3843937, 3844064, 3844097, 3844256, 3844289,
-    3844320, 3844417, 3844640, 3844673, 3855552, 3855617, 3856416,   3856449, 3857248, 3857281, 3858272, 3858305,
-    3859104, 3859137, 3860128, 3860161, 3860960, 3860993, 3861984,   3862017, 3862816, 3862849, 3863840, 3863873,
-    3864672, 3864705, 3864960, 3865026, 3866624, 3923969, 3924960,   3925153, 3925344, 3933697, 3935680, 3940353,
-    3941792, 3942113, 3942336, 3942402, 3942720, 3942849, 3942880,   3953153, 3954112, 3954689, 3956096, 3956226,
-    3956544, 3971585, 3972480, 3972610, 3972928, 3979777, 3980736,   3980801, 3980834, 3981152, 3996673, 3996896,
-    3996929, 3997056, 3997089, 3997152, 3997185, 3997664, 3997697,   4004000, 4004067, 4004352, 4005889, 4008064,
-    4008289, 4008320, 4008450, 4008768, 4034083, 4035968, 4036003,   4036096, 4036131, 4036256, 4038691, 4040128,
-    4040163, 4040640, 4046849, 4046976, 4047009, 4047872, 4047905,   4047968, 4048001, 4048032, 4048097, 4048128,
-    4048161, 4048480, 4048513, 4048640, 4048673, 4048704, 4048737,   4048768, 4048961, 4048992, 4049121, 4049152,
-    4049185, 4049216, 4049249, 4049280, 4049313, 4049408, 4049441,   4049504, 4049537, 4049568, 4049633, 4049664,
-    4049697, 4049728, 4049761, 4049792, 4049825, 4049856, 4049889,   4049920, 4049953, 4050016, 4050049, 4050080,
-    4050145, 4050272, 4050305, 4050528, 4050561, 4050688, 4050721,   4050848, 4050881, 4050912, 4050945, 4051264,
-    4051297, 4051840, 4052001, 4052096, 4052129, 4052288, 4052321,   4052864, 4071427, 4071840, 4161026, 4161344,
-    4194305, 5561344, 5562369, 5695296, 5695489, 5702592, 5702657,   5887040, 5887489, 6126624, 6127105, 6147008,
-    6225921, 6243264, 6291457, 6449504, 6449665, 6583808, 4294967295};
-
-static const uint16 unicode_simple_category_jump_pos[] = {
-    1,    9,    27,   27,   27,   27,   36,   44,   55,   55,   57,   63,   68,   75,   86,   91,   102,  114,  119,
-    130,  158,  180,  202,  225,  250,  271,  292,  312,  324,  332,  357,  365,  368,  383,  397,  397,  397,  407,
-    423,  431,  436,  437,  437,  437,  437,  440,  448,  458,  467,  472,  480,  487,  494,  498,  503,  509,  516,
-    524,  538,  538,  540,  540,  540,  558,  578,  592,  595,  622,  625,  625,  625,  625,  625,  626,  629,  629,
-    629,  629,  629,  630,  631,  631,  631,  631,  631,  631,  631,  631,  632,  632,  640,  650,  667,  669,  669,
-    669,  670,  682,  689,  692,  699,  706,  709,  709,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-    710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-    710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-    710,  710,  710,  710,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-    712,  712,  712,  712,  712,  712,  712,  716,  716,  716,  724,  728,  731,  741,  752,  763,  769,  781,  793,
-    810,  825,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,
-    829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,
-    829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,
-    829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,
-    829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  829,  834,  834,  834,  834,  834,
-    834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,
-    834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,
-    834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,  834,
-    834,  834,  834,  834,  835,  835,  835,  837,  839,  857,  859,  859,  859,  861,  866,  869,  870,  877,  887,
-    899,  900,  904,  906,  907,  913,  923,  931,  931,  939,  945,  961,  961,  961,  967,  973,  989,  998,  1003,
-    1010, 1023, 1032, 1040, 1044, 1046, 1051, 1058, 1059, 1062, 1068, 1076, 1082, 1091, 1097, 1109, 1121, 1127, 1140,
-    1159, 1173, 1181, 1188, 1189, 1193, 1199, 1207, 1213, 1214, 1215, 1220, 1235, 1244, 1252, 1257, 1257, 1262, 1271,
-    1273, 1287, 1292, 1292, 1294, 1302, 1307, 1307, 1307, 1307, 1307, 1307, 1307, 1307, 1309, 1311, 1311, 1312, 1312,
-    1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312,
-    1315, 1315, 1315, 1315, 1315, 1315, 1315, 1315, 1315, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319,
-    1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319, 1319,
-    1319, 1319, 1321, 1321, 1321, 1321, 1321, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322,
-    1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322,
-    1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322, 1322,
-    1322, 1322, 1322, 1323, 1326, 1326, 1326, 1326, 1326, 1326, 1326, 1326, 1326, 1326, 1326, 1326, 1326, 1327, 1327,
-    1327, 1327, 1327, 1333, 1339, 1349, 1350, 1350, 1350, 1354, 1354, 1356, 1358, 1361, 1368, 1368, 1368, 1368, 1368,
-    1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368,
-    1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368,
-    1368, 1368, 1368, 1368, 1368, 1370, 1370, 1370, 1370, 1370, 1370, 1370, 1370, 1370, 1370, 1372, 1373, 1373, 1373,
-    1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373,
-    1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373,
-    1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373,
-    1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1373, 1380, 1380, 1380, 1390, 1390, 1390, 1391, 1391, 1391, 1391,
-    1391, 1391, 1391, 1391, 1391, 1391, 1391, 1391, 1391, 1391, 1391, 1391, 1391, 1391, 1392, 1396, 1399, 1399, 1399,
-    1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399,
-    1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1399, 1401, 1401, 1401, 1401, 1401, 1401, 1401, 1401, 1401,
-    1401, 1401, 1401, 1405, 1407, 1408, 1410, 1426, 1444, 1444, 1444, 1452, 1460, 1469, 1469, 1469, 1469, 1469, 1469,
-    1469, 1469, 1469, 1469, 1469, 1469, 1469, 1469, 1470, 1473, 1473, 1475, 1476, 1483, 1483, 1483, 1489, 1489, 1489,
-    1489, 1493, 1493, 1498, 1498, 1498, 1498, 1507, 1507, 1511, 1516, 1516, 1516, 1516, 1516, 1516, 1517, 1522, 1526,
-    1527, 1583, 1592, 1592, 1592, 1592, 1593, 1594, 1594, 1594, 1594, 1594, 1594, 1594, 1594, 1594, 1594, 1594, 1594,
-    1594, 1594, 1594, 1594, 1594, 1594, 1594, 1594, 1594, 1596, 1596, 1596, 1596, 1596, 1596, 1596, 1596, 1597, 1611,
-    1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614};
-
-static const char *unicode_simple_category_table =
-    "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
-    "\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x02\x02\x02\x02\x02\x02\x02"
-    "\x02\x02\x00\x00\x00\x00\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01"
-    "\x01\x01\x01\x01\x01\x01\x01\x00\x00\x00\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01"
-    "\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01\x00\x00\x00\x00\x00";
-
-static constexpr uint32 TABLE_SIZE = 1280;
-
-static const int16 prepare_search_character_table[TABLE_SIZE] = {
-    0,     32,   32,   32,   32,    32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,
-    32,    32,   32,   32,   32,    32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,
-    32,    32,   32,   32,   32,    32,   32,   32,   32,   32,   48,   49,   50,   51,   52,   53,   54,   55,   56,
-    57,    32,   32,   32,   32,    32,   32,   32,   97,   98,   99,   100,  101,  102,  103,  104,  105,  106,  107,
-    108,   109,  110,  111,  112,   113,  114,  115,  116,  117,  118,  119,  120,  121,  122,  32,   32,   32,   32,
-    32,    32,   97,   98,   99,    100,  101,  102,  103,  104,  105,  106,  107,  108,  109,  110,  111,  112,  113,
-    114,   115,  116,  117,  118,   119,  120,  121,  122,  32,   32,   32,   32,   32,   32,   32,   32,   32,   32,
-    32,    32,   32,   32,   32,    32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,
-    32,    32,   32,   32,   32,    32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   32,   170,
-    32,    32,   0,    32,   32,    32,   32,   178,  179,  32,   956,  32,   0,    32,   185,  186,  32,   188,  189,
-    190,   32,   224,  225,  226,   227,  228,  229,  230,  231,  232,  233,  234,  235,  236,  237,  238,  239,  240,
-    241,   242,  243,  244,  245,   246,  32,   248,  249,  250,  251,  252,  253,  254,  223,  224,  225,  226,  227,
-    228,   229,  230,  231,  232,   233,  234,  235,  236,  237,  238,  239,  240,  241,  242,  243,  244,  245,  246,
-    32,    248,  249,  250,  251,   252,  253,  254,  255,  257,  257,  259,  259,  261,  261,  263,  263,  265,  265,
-    267,   267,  269,  269,  271,   271,  273,  273,  275,  275,  277,  277,  279,  279,  281,  281,  283,  283,  285,
-    285,   287,  287,  289,  289,   291,  291,  293,  293,  295,  295,  297,  297,  299,  299,  301,  301,  303,  303,
-    105,   305,  307,  307,  309,   309,  311,  311,  312,  314,  314,  316,  316,  318,  318,  320,  320,  322,  322,
-    324,   324,  326,  326,  328,   328,  329,  331,  331,  333,  333,  335,  335,  337,  337,  339,  339,  341,  341,
-    343,   343,  345,  345,  347,   347,  349,  349,  351,  351,  353,  353,  355,  355,  357,  357,  359,  359,  361,
-    361,   363,  363,  365,  365,   367,  367,  369,  369,  371,  371,  373,  373,  375,  375,  255,  378,  378,  380,
-    380,   382,  382,  115,  384,   595,  387,  387,  389,  389,  596,  392,  392,  598,  599,  396,  396,  397,  477,
-    601,   603,  402,  402,  608,   611,  405,  617,  616,  409,  409,  410,  411,  623,  626,  414,  629,  417,  417,
-    419,   419,  421,  421,  640,   424,  424,  643,  426,  427,  429,  429,  648,  432,  432,  650,  651,  436,  436,
-    438,   438,  658,  441,  441,   442,  443,  445,  445,  446,  447,  448,  449,  450,  451,  454,  454,  454,  457,
-    457,   457,  460,  460,  460,   462,  462,  464,  464,  466,  466,  468,  468,  470,  470,  472,  472,  474,  474,
-    476,   476,  477,  479,  479,   481,  481,  483,  483,  485,  485,  487,  487,  489,  489,  491,  491,  493,  493,
-    495,   495,  496,  499,  499,   499,  501,  501,  405,  447,  505,  505,  507,  507,  509,  509,  511,  511,  513,
-    513,   515,  515,  517,  517,   519,  519,  521,  521,  523,  523,  525,  525,  527,  527,  529,  529,  531,  531,
-    533,   533,  535,  535,  537,   537,  539,  539,  541,  541,  543,  543,  414,  545,  547,  547,  549,  549,  551,
-    551,   553,  553,  555,  555,   557,  557,  559,  559,  561,  561,  563,  563,  564,  565,  566,  567,  568,  569,
-    11365, 572,  572,  410,  11366, 575,  576,  578,  578,  384,  649,  652,  583,  583,  585,  585,  587,  587,  589,
-    589,   591,  591,  592,  593,   594,  595,  596,  597,  598,  599,  600,  601,  602,  603,  604,  605,  606,  607,
-    608,   609,  610,  611,  612,   613,  614,  615,  616,  617,  618,  619,  620,  621,  622,  623,  624,  625,  626,
-    627,   628,  629,  630,  631,   632,  633,  634,  635,  636,  637,  638,  639,  640,  641,  642,  643,  644,  645,
-    646,   647,  648,  649,  650,   651,  652,  653,  654,  655,  656,  657,  658,  659,  660,  661,  662,  663,  664,
-    665,   666,  667,  668,  669,   670,  671,  672,  673,  674,  675,  676,  677,  678,  679,  680,  681,  682,  683,
-    684,   685,  686,  687,  688,   689,  690,  691,  692,  693,  694,  695,  696,  697,  698,  699,  0,    701,  0,
-    703,   704,  705,  32,   32,    32,   32,   710,  711,  712,  713,  714,  715,  716,  717,  718,  719,  720,  721,
-    32,    32,   32,   32,   32,    32,   32,   32,   32,   32,   32,   32,   32,   32,   736,  737,  738,  739,  740,
-    32,    32,   32,   32,   32,    32,   32,   748,  32,   750,  32,   32,   32,   32,   32,   32,   32,   32,   32,
-    32,    32,   32,   32,   32,    32,   32,   32,   0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,     0,    0,    0,    0,     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,     0,    0,    0,    0,     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,     0,    0,    0,    0,     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,     837,  0,    0,    0,     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,     0,    0,    0,    0,     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,     0,    0,    0,    0,     0,    881,  881,  883,  883,  884,  32,   887,  887,  888,  889,  890,  891,  892,
-    893,   32,   1011, 896,  897,   898,  899,  32,   32,   940,  32,   941,  942,  943,  907,  972,  909,  973,  974,
-    912,   945,  946,  947,  948,   949,  950,  951,  952,  953,  954,  955,  956,  957,  958,  959,  960,  961,  930,
-    963,   964,  965,  966,  967,   968,  969,  970,  971,  940,  941,  942,  943,  944,  945,  946,  947,  948,  949,
-    950,   951,  952,  953,  954,   955,  956,  957,  958,  959,  960,  961,  963,  963,  964,  965,  966,  967,  968,
-    969,   970,  971,  972,  973,   974,  983,  946,  952,  965,  965,  965,  966,  960,  983,  985,  985,  987,  987,
-    989,   989,  991,  991,  993,   993,  995,  995,  997,  997,  999,  999,  1001, 1001, 1003, 1003, 1005, 1005, 1007,
-    1007,  954,  961,  963,  1011,  952,  949,  32,   1016, 1016, 1010, 1019, 1019, 1020, 891,  892,  893,  1104, 1105,
-    1106,  1107, 1108, 1109, 1110,  1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1072, 1073, 1074, 1075, 1076,
-    1077,  1078, 1079, 1080, 1081,  1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095,
-    1096,  1097, 1098, 1099, 1100,  1101, 1102, 1103, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082,
-    1083,  1084, 1085, 1086, 1087,  1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101,
-    1102,  1103, 1104, 1105, 1106,  1107, 1108, 1109, 1110, 1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1121,
-    1121,  1123, 1123, 1125, 1125,  1127, 1127, 1129, 1129, 1131, 1131, 1133, 1133, 1135, 1135, 1137, 1137, 1139, 1139,
-    1141,  1141, 1143, 1143, 1145,  1145, 1147, 1147, 1149, 1149, 1151, 1151, 1153, 1153, 32,   0,    0,    0,    0,
-    0,     0,    0,    1163, 1163,  1165, 1165, 1167, 1167, 1169, 1169, 1171, 1171, 1173, 1173, 1175, 1175, 1177, 1177,
-    1179,  1179, 1181, 1181, 1183,  1183, 1185, 1185, 1187, 1187, 1189, 1189, 1191, 1191, 1193, 1193, 1195, 1195, 1197,
-    1197,  1199, 1199, 1201, 1201,  1203, 1203, 1205, 1205, 1207, 1207, 1209, 1209, 1211, 1211, 1213, 1213, 1215, 1215,
-    1231,  1218, 1218, 1220, 1220,  1222, 1222, 1224, 1224, 1226, 1226, 1228, 1228, 1230, 1230, 1231, 1233, 1233, 1235,
-    1235,  1237, 1237, 1239, 1239,  1241, 1241, 1243, 1243, 1245, 1245, 1247, 1247, 1249, 1249, 1251, 1251, 1253, 1253,
-    1255,  1255, 1257, 1257, 1259,  1259, 1261, 1261, 1263, 1263, 1265, 1265, 1267, 1267, 1269, 1269, 1271, 1271, 1273,
-    1273,  1275, 1275, 1277, 1277,  1279, 1279};
-
-static const int32 prepare_search_character_ranges[] = {
-    1280,   2097153, 1328,   1328,    1329,    -1378,   1367,    -1368,    1370,    32,      1376,       -1377,
-    1417,   32,      1419,   -1420,   1421,    32,      1424,    1424,     1425,    0,       1470,       32,
-    1471,   0,       1472,   32,      1473,    0,       1475,    32,       1476,    0,       1478,       32,
-    1479,   0,       1480,   -1481,   1523,    32,      1525,    -1526,    1536,    0,       1542,       32,
-    1552,   0,       1563,   32,      1564,    0,       1565,    32,       1568,    -1569,   1611,       0,
-    1632,   -1633,   1642,   32,      1646,    -1647,   1648,    0,        1649,    -1650,   1748,       32,
-    1749,   1749,    1750,   0,       1758,    32,      1759,    0,        1765,    -1766,   1767,       0,
-    1769,   32,      1770,   0,       1774,    -1775,   1789,    32,       1791,    1791,    1792,       32,
-    1806,   1806,    1807,   0,       1808,    1808,    1809,    0,        1810,    -1811,   1840,       0,
-    1867,   -1868,   1958,   0,       1969,    -1970,   2027,    0,        2036,    -2037,   2038,       32,
-    2042,   -2043,   2045,   0,       2046,    32,      2048,    -2049,    2070,    0,       2074,       2074,
-    2075,   0,       2084,   2084,    2085,    0,       2088,    2088,     2089,    0,       2094,       -2095,
-    2096,   32,      2111,   -2112,   2137,    0,       2140,    -2141,    2142,    32,      2143,       -2144,
-    2184,   32,      2185,   -2186,   2192,    0,       2194,    -2195,    2199,    0,       2208,       -2209,
-    2250,   0,       2308,   -2309,   2362,    0,       2365,    2365,     2366,    0,       2384,       2384,
-    2385,   0,       2392,   -2393,   2402,    0,       2404,    32,       2406,    -2407,   2416,       32,
-    2417,   -2418,   2433,   0,       2436,    -2437,   2492,    0,        2493,    2493,    2494,       0,
-    2501,   -2502,   2503,   0,       2505,    -2506,   2507,    0,        2510,    -2511,   2519,       0,
-    2520,   -2521,   2530,   0,       2532,    -2533,   2546,    32,       2548,    -2549,   2554,       32,
-    2556,   2556,    2557,   32,      2558,    0,       2559,    -2560,    2561,    0,       2564,       -2565,
-    2620,   0,       2621,   2621,    2622,    0,       2627,    -2628,    2631,    0,       2633,       -2634,
-    2635,   0,       2638,   -2639,   2641,    0,       2642,    -2643,    2672,    0,       2674,       -2675,
-    2677,   0,       2678,   32,      2679,    -2680,   2689,    0,        2692,    -2693,   2748,       0,
-    2749,   2749,    2750,   0,       2758,    2758,    2759,    0,        2762,    2762,    2763,       0,
-    2766,   -2767,   2786,   0,       2788,    -2789,   2800,    32,       2802,    -2803,   2810,       0,
-    2816,   2816,    2817,   0,       2820,    -2821,   2876,    0,        2877,    2877,    2878,       0,
-    2885,   -2886,   2887,   0,       2889,    -2890,   2891,    0,        2894,    -2895,   2901,       0,
-    2904,   -2905,   2914,   0,       2916,    -2917,   2928,    32,       2929,    -2930,   2946,       0,
-    2947,   -2948,   3006,   0,       3011,    -3012,   3014,    0,        3017,    3017,    3018,       0,
-    3022,   -3023,   3031,   0,       3032,    -3033,   3059,    32,       3067,    -3068,   3072,       0,
-    3077,   -3078,   3132,   0,       3133,    3133,    3134,    0,        3141,    3141,    3142,       0,
-    3145,   3145,    3146,   0,       3150,    -3151,   3157,    0,        3159,    -3160,   3170,       0,
-    3172,   -3173,   3191,   32,      3192,    -3193,   3199,    32,       3200,    3200,    3201,       0,
-    3204,   32,      3205,   -3206,   3260,    0,       3261,    3261,     3262,    0,       3269,       3269,
-    3270,   0,       3273,   3273,    3274,    0,       3278,    -3279,    3285,    0,       3287,       -3288,
-    3298,   0,       3300,   -3301,   3315,    0,       3316,    -3317,    3328,    0,       3332,       -3333,
-    3387,   0,       3389,   3389,    3390,    0,       3397,    3397,     3398,    0,       3401,       3401,
-    3402,   0,       3406,   3406,    3407,    32,      3408,    -3409,    3415,    0,       3416,       -3417,
-    3426,   0,       3428,   -3429,   3449,    32,      3450,    -3451,    3457,    0,       3460,       -3461,
-    3530,   0,       3531,   -3532,   3535,    0,       3541,    3541,     3542,    0,       3543,       3543,
-    3544,   0,       3552,   -3553,   3570,    0,       3572,    32,       3573,    -3574,   3633,       0,
-    3634,   -3635,   3636,   0,       3643,    -3644,   3647,    32,       3648,    -3649,   3655,       0,
-    3663,   32,      3664,   -3665,   3674,    32,      3676,    -3677,    3761,    0,       3762,       -3763,
-    3764,   0,       3773,   -3774,   3784,    0,       3791,    -3792,    3841,    32,      3864,       0,
-    3866,   32,      3872,   -3873,   3892,    32,      3893,    0,        3894,    32,      3895,       0,
-    3896,   32,      3897,   0,       3898,    32,      3902,    0,        3904,    -3905,   3953,       0,
-    3973,   32,      3974,   0,       3976,    -3977,   3981,    0,        3992,    3992,    3993,       0,
-    4029,   4029,    4030,   32,      4038,    0,       4039,    32,       4045,    4045,    4046,       32,
-    4059,   -4060,   4139,   0,       4159,    -4160,   4170,    32,       4176,    -4177,   4182,       0,
-    4186,   -4187,   4190,   0,       4193,    4193,    4194,    0,        4197,    -4198,   4199,       0,
-    4206,   -4207,   4209,   0,       4213,    -4214,   4226,    0,        4238,    4238,    4239,       0,
-    4240,   -4241,   4250,   0,       4254,    32,      4256,    -11521,   4294,    4294,    4295,       11559,
-    4296,   -4297,   4301,   11565,   4302,    -4303,   4347,    32,       4348,    -4349,   4957,       0,
-    4960,   32,      4969,   -4970,   5008,    32,      5018,    -5019,    5112,    -5105,   5118,       -5119,
-    5120,   32,      5121,   -5122,   5741,    32,      5743,    -5744,    5760,    32,      5761,       -5762,
-    5787,   32,      5789,   -5790,   5867,    32,      5870,    -5871,    5906,    0,       5910,       -5911,
-    5938,   0,       5941,   32,      5943,    -5944,   5970,    0,        5972,    -5973,   6002,       0,
-    6004,   -6005,   6068,   0,       6100,    32,      6103,    6103,     6104,    32,      6108,       6108,
-    6109,   0,       6110,   -6111,   6144,    32,      6155,    0,        6160,    -6161,   6277,       0,
-    6279,   -6280,   6313,   0,       6314,    -6315,   6432,    0,        6444,    -6445,   6448,       0,
-    6460,   -6461,   6464,   32,      6465,    -6466,   6468,    32,       6470,    -6471,   6622,       32,
-    6656,   -6657,   6679,   0,       6684,    -6685,   6686,    32,       6688,    -6689,   6741,       0,
-    6751,   6751,    6752,   0,       6781,    -6782,   6783,    0,        6784,    -6785,   6816,       32,
-    6823,   6823,    6824,   32,      6830,    -6831,   6832,    0,        6863,    -6864,   6912,       0,
-    6917,   -6918,   6964,   0,       6981,    -6982,   6990,    32,       6992,    -6993,   7002,       32,
-    7019,   0,       7028,   32,      7040,    0,       7043,    -7044,    7073,    0,       7086,       -7087,
-    7142,   0,       7156,   -7157,   7164,    32,      7168,    -7169,    7204,    0,       7224,       -7225,
-    7227,   32,      7232,   -7233,   7294,    32,      7296,    1074,     7297,    1076,    7298,       1086,
-    7299,   -1090,   7301,   1090,    7302,    1098,    7303,    1123,     7304,    42571,   7305,       7306,
-    7307,   -7308,   7312,   -4305,   7355,    -7356,   7357,    -4350,    7360,    32,      7368,       -7369,
-    7376,   0,       7379,   32,      7380,    0,       7401,    -7402,    7405,    0,       7406,       -7407,
-    7412,   0,       7413,   -7414,   7415,    0,       7418,    -7419,    7468,    97,      7469,       230,
-    7470,   98,      7471,   7471,    7472,    -101,    7474,    477,      7475,    -104,    7483,       7483,
-    7484,   111,     7485,   547,     7486,    112,     7487,    114,      7488,    -117,    7490,       119,
-    7491,   -7492,   7616,   0,       7680,    2097153, 7830,    -7831,    7835,    7777,    7836,       -7837,
-    7838,   223,     7839,   2097153, 7936,    -7937,   7944,    -7937,    7952,    -7953,   7960,       -7953,
-    7966,   -7967,   7976,   -7969,   7984,    -7985,   7992,    -7985,    8000,    -8001,   8008,       -8001,
-    8014,   -8015,   8025,   8017,    8026,    8026,    8027,    8019,     8028,    8028,    8029,       8021,
-    8030,   8030,    8031,   8023,    8032,    -8033,   8040,    -8033,    8048,    -8049,   8072,       -8065,
-    8080,   -8081,   8088,   -8081,   8096,    -8097,   8104,    -8097,    8112,    -8113,   8120,       -8113,
-    8122,   -8049,   8124,   8115,    8125,    32,      8126,    953,      8127,    32,      8130,       -8131,
-    8136,   -8051,   8140,   8131,    8141,    32,      8144,    -8145,    8147,    912,     8148,       -8149,
-    8152,   -8145,   8154,   -8055,   8156,    8156,    8157,    32,       8160,    -8161,   8163,       944,
-    8164,   -8165,   8168,   -8161,   8170,    -8059,   8172,    8165,     8173,    32,      8176,       -8177,
-    8184,   -8057,   8186,   -8061,   8188,    8179,    8189,    32,       8191,    8191,    8192,       32,
-    8203,   0,       8208,   32,      8234,    0,       8239,    32,       8288,    0,       8293,       8293,
-    8294,   0,       8304,   -8305,   8314,    32,      8319,    -8320,    8330,    32,      8335,       -8336,
-    8352,   32,      8385,   -8386,   8400,    0,       8433,    -8434,    8448,    32,      8450,       99,
-    8452,   32,      8455,   603,     8456,    32,      8457,    102,      8458,    8458,    8459,       104,
-    8462,   -8463,   8464,   105,     8466,    108,     8467,    8467,     8468,    32,      8469,       110,
-    8470,   32,      8473,   -113,    8476,    114,     8478,    32,       8484,    122,     8485,       32,
-    8486,   969,     8487,   32,      8488,    122,     8489,    32,       8490,    107,     8491,       229,
-    8492,   -99,     8494,   32,      8495,    8495,    8496,    -102,     8498,    8526,    8499,       109,
-    8500,   -8501,   8506,   32,      8508,    -8509,   8510,    947,      8511,    960,     8512,       32,
-    8517,   100,     8518,   -8519,   8522,    32,      8526,    8526,     8527,    32,      8528,       -8529,
-    8544,   -8561,   8560,   -8561,   8579,    8580,    8581,    -8582,    8586,    32,      8588,       -8589,
-    8592,   32,      9258,   -9259,   9280,    32,      9291,    -9292,    9372,    32,      9398,       -9425,
-    9424,   -9425,   9472,   32,      10102,   -10103,  10132,   32,       11124,   -11125,  11126,      32,
-    11158,  11158,   11159,  32,      11264,   -11313,  11312,   -11313,   11360,   11361,   11362,      619,
-    11363,  7549,    11364,  637,     11365,   -11366,  11367,   11368,    11369,   11370,   11371,      11372,
-    11373,  593,     11374,  625,     11375,   592,     11376,   594,      11377,   2097153, 11380,      11380,
-    11381,  11382,   11383,  -11384,  11389,   118,     11390,   -576,     11392,   2097153, 11492,      11492,
-    11493,  32,      11499,  11500,   11501,   11502,   11503,   0,        11506,   11507,   11508,      -11509,
-    11513,  32,      11517,  11517,   11518,   32,      11520,   -11521,   11632,   32,      11633,      -11634,
-    11647,  0,       11648,  -11649,  11744,   0,       11776,   32,       11823,   11823,   11824,      32,
-    11870,  -11871,  11904,  32,      11930,   11930,   11931,   32,       11935,   11935,   11936,      32,
-    12019,  -12020,  12272,  32,      12293,   -12294,  12296,   32,       12321,   -12322,  12330,      0,
-    12336,  32,      12337,  -12338,  12342,   32,      12344,   -12345,   12349,   32,      12352,      -12353,
-    12441,  0,       12443,  32,      12445,   -12446,  12448,   32,       12449,   -12450,  12539,      32,
-    12540,  0,       12541,  -12542,  12688,   32,      12690,   -12691,   12736,   32,      12774,      -12775,
-    12783,  32,      12784,  -12785,  12800,   32,      12831,   -12832,   12842,   32,      12868,      -12869,
-    12880,  32,      12881,  -12882,  12910,   32,      12928,   -12929,   12992,   32,      13008,      -13009,
-    13055,  32,      13312,  -13313,  19904,   32,      19968,   -19969,   42128,   32,      42183,      -42184,
-    42238,  32,      42240,  -42241,  42509,   32,      42512,   -42513,   42560,   2097153, 42606,      42606,
-    42607,  0,       42611,  32,      42612,   0,       42622,   32,       42623,   2097153, 42652,      -42653,
-    42654,  0,       42656,  -42657,  42736,   0,       42738,   32,       42744,   -42745,  42752,      32,
-    42775,  -42776,  42784,  32,      42786,   2097153, 42800,   -42801,   42802,   2097153, 42864,      -42865,
-    42873,  42874,   42875,  42876,   42877,   7545,    42878,   2097153,  42888,   42888,   42889,      32,
-    42891,  42892,   42893,  613,     42894,   -42895,  42896,   2097153,  42900,   -42901,  42902,      2097153,
-    42922,  614,     42923,  604,     42924,   609,     42925,   620,      42926,   618,     42927,      42927,
-    42928,  670,     42929,  647,     42930,   669,     42931,   43859,    42932,   2097153, 42948,      42900,
-    42949,  642,     42950,  7566,    42951,   42952,   42953,   42954,    42955,   612,     42956,      42957,
-    42958,  -42959,  42960,  42961,   42962,   -42963,  42966,   2097153,  42972,   411,     42973,      -42974,
-    42994,  99,      42995,  102,     42996,   113,     42997,   42998,    42999,   42999,   43000,      295,
-    43001,  -43002,  43010,  0,       43011,   -43012,  43014,   0,        43015,   -43016,  43019,      0,
-    43020,  -43021,  43043,  0,       43048,   32,      43052,   0,        43053,   -43054,  43062,      32,
-    43066,  -43067,  43124,  32,      43128,   -43129,  43136,   0,        43138,   -43139,  43188,      0,
-    43206,  -43207,  43214,  32,      43216,   -43217,  43232,   0,        43250,   -43251,  43256,      32,
-    43259,  43259,   43260,  32,      43261,   -43262,  43263,   0,        43264,   -43265,  43302,      0,
-    43310,  32,      43312,  -43313,  43335,   0,       43348,   -43349,   43359,   32,      43360,      -43361,
-    43392,  0,       43396,  -43397,  43443,   0,       43457,   32,       43470,   -43471,  43486,      32,
-    43488,  -43489,  43493,  0,       43494,   -43495,  43561,   0,        43575,   -43576,  43587,      0,
-    43588,  -43589,  43596,  0,       43598,   -43599,  43612,   32,       43616,   -43617,  43639,      32,
-    43642,  43642,   43643,  0,       43646,   -43647,  43696,   0,        43697,   43697,   43698,      0,
-    43701,  -43702,  43703,  0,       43705,   -43706,  43710,   0,        43712,   43712,   43713,      0,
-    43714,  -43715,  43742,  32,      43744,   -43745,  43755,   0,        43760,   32,      43762,      -43763,
-    43765,  0,       43767,  -43768,  43867,   32,      43868,   -43869,   43882,   32,      43884,      -43885,
-    43888,  -5025,   43968,  -43969,  44003,   0,       44011,   32,       44012,   0,       44014,      -44015,
-    55296,  0,       57344,  -57345,  64261,   64262,   64263,   -64264,   64286,   0,       64287,      -64288,
-    64297,  32,      64298,  -64299,  64434,   32,      64451,   -64452,   64830,   32,      64848,      -64849,
-    64975,  32,      65008,  -65009,  65020,   32,      65024,   0,        65040,   32,      65050,      -65051,
-    65056,  0,       65072,  32,      65107,   65107,   65108,   32,       65127,   65127,   65128,      32,
-    65132,  -65133,  65279,  0,       65280,   65280,   65281,   32,       65296,   -65297,  65306,      32,
-    65313,  -65346,  65339,  32,      65345,   -65346,  65371,   32,       65382,   -65383,  65504,      32,
-    65511,  65511,   65512,  32,      65519,   -65520,  65529,   0,        65532,   32,      65536,      -65537,
-    65792,  32,      65795,  -65796,  65847,   32,      65856,   -65857,   65913,   32,      65930,      -65931,
-    65932,  32,      65935,  65935,   65936,   32,      65949,   -65950,   65952,   32,      65953,      -65954,
-    66000,  32,      66045,  0,       66046,   -66047,  66272,   0,        66273,   -66274,  66422,      0,
-    66427,  -66428,  66463,  32,      66464,   -66465,  66512,   32,       66513,   -66514,  66560,      -66601,
-    66600,  -66601,  66736,  -66777,  66772,   -66773,  66927,   32,       66928,   -66968,  66939,      66939,
-    66940,  -66980,  66955,  66955,   66956,   -66996,  66963,   66963,    66964,   -67004,  66966,      -66967,
-    67671,  32,      67672,  -67673,  67703,   32,      67705,   -67706,   67871,   32,      67872,      -67873,
-    67903,  32,      67904,  -67905,  68097,   0,       68100,   68100,    68101,   0,       68103,      -68104,
-    68108,  0,       68112,  -68113,  68152,   0,       68155,   -68156,   68159,   0,       68160,      -68161,
-    68176,  32,      68185,  -68186,  68223,   32,      68224,   -68225,   68296,   32,      68297,      -68298,
-    68325,  0,       68327,  -68328,  68336,   32,      68343,   -68344,   68409,   32,      68416,      -68417,
-    68505,  32,      68509,  -68510,  68736,   -68801,  68787,   -68788,   68900,   0,       68904,      -68905,
-    68944,  -68977,  68966,  -68967,  68969,   0,       68974,   32,       68975,   -68976,  69006,      32,
-    69008,  -69009,  69291,  0,       69293,   32,      69294,   -69295,   69372,   0,       69376,      -69377,
-    69446,  0,       69457,  -69458,  69461,   32,      69466,   -69467,   69506,   0,       69510,      32,
-    69514,  -69515,  69632,  0,       69635,   -69636,  69688,   0,        69703,   32,      69710,      -69711,
-    69744,  0,       69745,  -69746,  69747,   0,       69749,   -69750,   69759,   0,       69763,      -69764,
-    69808,  0,       69819,  32,      69821,   0,       69822,   32,       69826,   0,       69827,      -69828,
-    69837,  0,       69838,  -69839,  69888,   0,       69891,   -69892,   69927,   0,       69941,      -69942,
-    69952,  32,      69956,  69956,   69957,   0,       69959,   -69960,   70003,   0,       70004,      32,
-    70006,  -70007,  70016,  0,       70019,   -70020,  70067,   0,        70081,   -70082,  70085,      32,
-    70089,  0,       70093,  32,      70094,   0,       70096,   -70097,   70107,   32,      70108,      70108,
-    70109,  32,      70112,  -70113,  70188,   0,       70200,   32,       70206,   0,       70207,      -70208,
-    70209,  0,       70210,  -70211,  70313,   32,      70314,   -70315,   70367,   0,       70379,      -70380,
-    70400,  0,       70404,  -70405,  70459,   0,       70461,   70461,    70462,   0,       70469,      -70470,
-    70471,  0,       70473,  -70474,  70475,   0,       70478,   -70479,   70487,   0,       70488,      -70489,
-    70498,  0,       70500,  -70501,  70502,   0,       70509,   -70510,   70512,   0,       70517,      -70518,
-    70584,  0,       70593,  70593,   70594,   0,       70595,   -70596,   70597,   0,       70598,      70598,
-    70599,  0,       70603,  70603,   70604,   0,       70609,   70609,    70610,   0,       70611,      70611,
-    70612,  32,      70614,  70614,   70615,   32,      70617,   -70618,   70625,   0,       70627,      -70628,
-    70709,  0,       70727,  -70728,  70731,   32,      70736,   -70737,   70746,   32,      70748,      70748,
-    70749,  32,      70750,  0,       70751,   -70752,  70832,   0,        70852,   -70853,  70854,      32,
-    70855,  -70856,  71087,  0,       71094,   -71095,  71096,   0,        71105,   32,      71128,      -71129,
-    71132,  0,       71134,  -71135,  71216,   0,       71233,   32,       71236,   -71237,  71264,      32,
-    71277,  -71278,  71339,  0,       71352,   71352,   71353,   32,       71354,   -71355,  71453,      0,
-    71468,  -71469,  71484,  32,      71488,   -71489,  71724,   0,        71739,   32,      71740,      -71741,
-    71840,  -71873,  71872,  -71873,  71984,   0,       71990,   71990,    71991,   0,       71993,      -71994,
-    71995,  0,       71999,  71999,   72000,   0,       72001,   72001,    72002,   0,       72004,      32,
-    72007,  -72008,  72145,  0,       72152,   -72153,  72154,   0,        72161,   72161,   72162,      32,
-    72163,  72163,   72164,  0,       72165,   -72166,  72193,   0,        72203,   -72204,  72243,      0,
-    72250,  72250,   72251,  0,       72255,   32,      72263,   0,        72264,   -72265,  72273,      0,
-    72284,  -72285,  72330,  0,       72346,   32,      72349,   72349,    72350,   32,      72355,      -72356,
-    72448,  32,      72458,  -72459,  72673,   32,      72674,   -72675,   72751,   0,       72759,      72759,
-    72760,  0,       72768,  72768,   72769,   32,      72774,   -72775,   72816,   32,      72818,      -72819,
-    72850,  0,       72872,  72872,   72873,   0,       72887,   -72888,   73009,   0,       73015,      -73016,
-    73018,  0,       73019,  73019,   73020,   0,       73022,   73022,    73023,   0,       73030,      73030,
-    73031,  0,       73032,  -73033,  73098,   0,       73103,   73103,    73104,   0,       73106,      73106,
-    73107,  0,       73112,  -73113,  73459,   0,       73463,   32,       73465,   -73466,  73472,      0,
-    73474,  73474,   73475,  0,       73476,   -73477,  73524,   0,        73531,   -73532,  73534,      0,
-    73539,  32,      73552,  -73553,  73562,   0,       73563,   -73564,   73685,   32,      73714,      -73715,
-    73727,  32,      73728,  -73729,  74864,   32,      74869,   -74870,   77809,   32,      77811,      -77812,
-    78896,  0,       78913,  -78914,  78919,   0,       78934,   -78935,   90398,   0,       90416,      -90417,
-    92782,  32,      92784,  -92785,  92912,   0,       92917,   32,       92918,   -92919,  92976,      0,
-    92983,  32,      92992,  -92993,  92996,   32,      92998,   -92999,   93549,   32,      93552,      -93553,
-    93760,  -93793,  93792,  -93793,  93847,   32,      93851,   -93852,   94031,   0,       94032,      94032,
-    94033,  0,       94088,  -94089,  94095,   0,       94099,   -94100,   94178,   32,      94179,      94179,
-    94180,  0,       94181,  -94182,  94192,   0,       94194,   -94195,   113820,  32,      113821,     0,
-    113823, 32,      113824, 0,       113828,  -113829, 117760,  32,       117974,  -98,     118000,     -118001,
-    118016, 32,      118452, -118453, 118528,  0,       118574,  -118575,  118576,  0,       118599,     -118600,
-    118608, 32,      118724, -118725, 118784,  32,      119030,  -119031,  119040,  32,      119079,     -119080,
-    119081, 32,      119141, 0,       119146,  32,      119149,  0,        119171,  32,      119173,     0,
-    119180, 32,      119210, 0,       119214,  32,      119275,  -119276,  119296,  32,      119362,     0,
-    119365, 32,      119366, -119367, 119552,  32,      119639,  -119640,  119808,  -98,     119834,     -119835,
-    119860, -98,     119886, -119887, 119912,  -98,     119938,  -119939,  119964,  97,      119965,     119965,
-    119966, -100,    119968, -119969, 119970,  103,     119971,  -119972,  119973,  -107,    119975,     -119976,
-    119977, -111,    119981, 119981,  119982,  -116,    119990,  -119991,  120016,  -98,     120042,     -120043,
-    120068, -98,     120070, 120070,  120071,  -101,    120075,  -120076,  120077,  -107,    120085,     120085,
-    120086, -116,    120093, -120094, 120120,  -98,     120122,  120122,   120123,  -101,    120127,     120127,
-    120128, -106,    120133, 120133,  120134,  111,     120135,  -120136,  120138,  -116,    120145,     -120146,
-    120172, -98,     120198, -120199, 120224,  -98,     120250,  -120251,  120276,  -98,     120302,     -120303,
-    120328, -98,     120354, -120355, 120380,  -98,     120406,  -120407,  120432,  -98,     120458,     -120459,
-    120488, -946,    120505, 952,     120506,  -964,    120513,  32,       120514,  -120515, 120531,     963,
-    120532, -120533, 120539, 32,      120540,  -120541, 120546,  -946,     120563,  952,     120564,     -964,
-    120571, 32,      120572, -120573, 120589,  963,     120590,  -120591,  120597,  32,      120598,     -120599,
-    120604, -946,    120621, 952,     120622,  -964,    120629,  32,       120630,  -120631, 120647,     963,
-    120648, -120649, 120655, 32,      120656,  -120657, 120662,  -946,     120679,  952,     120680,     -964,
-    120687, 32,      120688, -120689, 120705,  963,     120706,  -120707,  120713,  32,      120714,     -120715,
-    120720, -946,    120737, 952,     120738,  -964,    120745,  32,       120746,  -120747, 120763,     963,
-    120764, -120765, 120771, 32,      120772,  -120773, 120778,  989,      120779,  -120780, 120832,     32,
-    121344, 0,       121399, 32,      121403,  0,       121453,  32,       121461,  0,       121462,     32,
-    121476, 0,       121477, 32,      121484,  -121485, 121499,  0,        121504,  121504,  121505,     0,
-    121520, -121521, 122880, 0,       122887,  122887,  122888,  0,        122905,  -122906, 122907,     0,
-    122914, 122914,  122915, 0,       122917,  122917,  122918,  0,        122923,  -122924, 123023,     0,
-    123024, -123025, 123184, 0,       123191,  -123192, 123215,  32,       123216,  -123217, 123566,     0,
-    123567, -123568, 123628, 0,       123632,  -123633, 123647,  32,       123648,  -123649, 124140,     0,
-    124144, -124145, 124398, 0,       124400,  -124401, 124415,  32,       124416,  -124417, 125136,     0,
-    125143, -125144, 125184, -125219, 125218,  -125219, 125252,  0,        125259,  -125260, 125278,     32,
-    125280, -125281, 126124, 32,      126125,  -126126, 126128,  32,       126129,  -126130, 126254,     32,
-    126255, -126256, 126704, 32,      126706,  -126707, 126976,  32,       127020,  -127021, 127024,     32,
-    127124, -127125, 127136, 32,      127151,  -127152, 127153,  32,       127168,  127168,  127169,     32,
-    127184, 127184,  127185, 32,      127222,  -127223, 127245,  32,       127275,  99,      127276,     114,
-    127277, 32,      127280, -98,     127306,  32,      127406,  -127407,  127462,  32,      127490,     -127491,
-    127552, 32,      127561, -127562, 127584,  32,      127590,  -127591,  127744,  32,      128728,     -128729,
-    128732, 32,      128749, -128750, 128752,  32,      128765,  -128766,  128768,  32,      128887,     -128888,
-    128891, 32,      128986, -128987, 128992,  32,      129004,  -129005,  129008,  32,      129009,     -129010,
-    129024, 32,      129036, -129037, 129040,  32,      129096,  -129097,  129104,  32,      129114,     -129115,
-    129120, 32,      129160, -129161, 129168,  32,      129198,  -129199,  129200,  32,      129212,     -129213,
-    129216, 32,      129218, -129219, 129280,  32,      129620,  -129621,  129632,  32,      129646,     -129647,
-    129648, 32,      129661, -129662, 129664,  32,      129674,  -129675,  129679,  32,      129735,     -129736,
-    129742, 32,      129757, -129758, 129759,  32,      129770,  -129771,  129776,  32,      129785,     -129786,
-    129792, 32,      129939, 129939,  129940,  32,      130032,  -130033,  131070,  32,      131072,     -131073,
-    196606, 32,      196608, -196609, 262142,  32,      262144,  -262145,  327678,  32,      327680,     -327681,
-    393214, 32,      393216, -393217, 458750,  32,      458752,  -458753,  524286,  32,      524288,     -524289,
-    589822, 32,      589824, -589825, 655358,  32,      655360,  -655361,  720894,  32,      720896,     -720897,
-    786430, 32,      786432, -786433, 851966,  32,      851968,  -851969,  917502,  32,      917504,     917504,
-    917505, 0,       917506, -917507, 917536,  0,       917632,  -917633,  917760,  0,       918000,     -918001,
-    983038, 32,      983040, -983041, 1048574, 32,      1048576, -1048577, 1114110, 32,      2147483647, 0};
-
-static const int16 to_lower_table[TABLE_SIZE] = {
-    0,     1,    2,    3,    4,     5,    6,    7,    8,    9,    10,   11,   12,   13,   14,   15,   16,   17,   18,
-    19,    20,   21,   22,   23,    24,   25,   26,   27,   28,   29,   30,   31,   32,   33,   34,   35,   36,   37,
-    38,    39,   40,   41,   42,    43,   44,   45,   46,   47,   48,   49,   50,   51,   52,   53,   54,   55,   56,
-    57,    58,   59,   60,   61,    62,   63,   64,   97,   98,   99,   100,  101,  102,  103,  104,  105,  106,  107,
-    108,   109,  110,  111,  112,   113,  114,  115,  116,  117,  118,  119,  120,  121,  122,  91,   92,   93,   94,
-    95,    96,   97,   98,   99,    100,  101,  102,  103,  104,  105,  106,  107,  108,  109,  110,  111,  112,  113,
-    114,   115,  116,  117,  118,   119,  120,  121,  122,  123,  124,  125,  126,  127,  128,  129,  130,  131,  132,
-    133,   134,  135,  136,  137,   138,  139,  140,  141,  142,  143,  144,  145,  146,  147,  148,  149,  150,  151,
-    152,   153,  154,  155,  156,   157,  158,  159,  160,  161,  162,  163,  164,  165,  166,  167,  168,  169,  170,
-    171,   172,  173,  174,  175,   176,  177,  178,  179,  180,  181,  182,  183,  184,  185,  186,  187,  188,  189,
-    190,   191,  224,  225,  226,   227,  228,  229,  230,  231,  232,  233,  234,  235,  236,  237,  238,  239,  240,
-    241,   242,  243,  244,  245,   246,  215,  248,  249,  250,  251,  252,  253,  254,  223,  224,  225,  226,  227,
-    228,   229,  230,  231,  232,   233,  234,  235,  236,  237,  238,  239,  240,  241,  242,  243,  244,  245,  246,
-    247,   248,  249,  250,  251,   252,  253,  254,  255,  257,  257,  259,  259,  261,  261,  263,  263,  265,  265,
-    267,   267,  269,  269,  271,   271,  273,  273,  275,  275,  277,  277,  279,  279,  281,  281,  283,  283,  285,
-    285,   287,  287,  289,  289,   291,  291,  293,  293,  295,  295,  297,  297,  299,  299,  301,  301,  303,  303,
-    105,   305,  307,  307,  309,   309,  311,  311,  312,  314,  314,  316,  316,  318,  318,  320,  320,  322,  322,
-    324,   324,  326,  326,  328,   328,  329,  331,  331,  333,  333,  335,  335,  337,  337,  339,  339,  341,  341,
-    343,   343,  345,  345,  347,   347,  349,  349,  351,  351,  353,  353,  355,  355,  357,  357,  359,  359,  361,
-    361,   363,  363,  365,  365,   367,  367,  369,  369,  371,  371,  373,  373,  375,  375,  255,  378,  378,  380,
-    380,   382,  382,  383,  384,   595,  387,  387,  389,  389,  596,  392,  392,  598,  599,  396,  396,  397,  477,
-    601,   603,  402,  402,  608,   611,  405,  617,  616,  409,  409,  410,  411,  623,  626,  414,  629,  417,  417,
-    419,   419,  421,  421,  640,   424,  424,  643,  426,  427,  429,  429,  648,  432,  432,  650,  651,  436,  436,
-    438,   438,  658,  441,  441,   442,  443,  445,  445,  446,  447,  448,  449,  450,  451,  454,  454,  454,  457,
-    457,   457,  460,  460,  460,   462,  462,  464,  464,  466,  466,  468,  468,  470,  470,  472,  472,  474,  474,
-    476,   476,  477,  479,  479,   481,  481,  483,  483,  485,  485,  487,  487,  489,  489,  491,  491,  493,  493,
-    495,   495,  496,  499,  499,   499,  501,  501,  405,  447,  505,  505,  507,  507,  509,  509,  511,  511,  513,
-    513,   515,  515,  517,  517,   519,  519,  521,  521,  523,  523,  525,  525,  527,  527,  529,  529,  531,  531,
-    533,   533,  535,  535,  537,   537,  539,  539,  541,  541,  543,  543,  414,  545,  547,  547,  549,  549,  551,
-    551,   553,  553,  555,  555,   557,  557,  559,  559,  561,  561,  563,  563,  564,  565,  566,  567,  568,  569,
-    11365, 572,  572,  410,  11366, 575,  576,  578,  578,  384,  649,  652,  583,  583,  585,  585,  587,  587,  589,
-    589,   591,  591,  592,  593,   594,  595,  596,  597,  598,  599,  600,  601,  602,  603,  604,  605,  606,  607,
-    608,   609,  610,  611,  612,   613,  614,  615,  616,  617,  618,  619,  620,  621,  622,  623,  624,  625,  626,
-    627,   628,  629,  630,  631,   632,  633,  634,  635,  636,  637,  638,  639,  640,  641,  642,  643,  644,  645,
-    646,   647,  648,  649,  650,   651,  652,  653,  654,  655,  656,  657,  658,  659,  660,  661,  662,  663,  664,
-    665,   666,  667,  668,  669,   670,  671,  672,  673,  674,  675,  676,  677,  678,  679,  680,  681,  682,  683,
-    684,   685,  686,  687,  688,   689,  690,  691,  692,  693,  694,  695,  696,  697,  698,  699,  700,  701,  702,
-    703,   704,  705,  706,  707,   708,  709,  710,  711,  712,  713,  714,  715,  716,  717,  718,  719,  720,  721,
-    722,   723,  724,  725,  726,   727,  728,  729,  730,  731,  732,  733,  734,  735,  736,  737,  738,  739,  740,
-    741,   742,  743,  744,  745,   746,  747,  748,  749,  750,  751,  752,  753,  754,  755,  756,  757,  758,  759,
-    760,   761,  762,  763,  764,   765,  766,  767,  768,  769,  770,  771,  772,  773,  774,  775,  776,  777,  778,
-    779,   780,  781,  782,  783,   784,  785,  786,  787,  788,  789,  790,  791,  792,  793,  794,  795,  796,  797,
-    798,   799,  800,  801,  802,   803,  804,  805,  806,  807,  808,  809,  810,  811,  812,  813,  814,  815,  816,
-    817,   818,  819,  820,  821,   822,  823,  824,  825,  826,  827,  828,  829,  830,  831,  832,  833,  834,  835,
-    836,   837,  838,  839,  840,   841,  842,  843,  844,  845,  846,  847,  848,  849,  850,  851,  852,  853,  854,
-    855,   856,  857,  858,  859,   860,  861,  862,  863,  864,  865,  866,  867,  868,  869,  870,  871,  872,  873,
-    874,   875,  876,  877,  878,   879,  881,  881,  883,  883,  884,  885,  887,  887,  888,  889,  890,  891,  892,
-    893,   894,  1011, 896,  897,   898,  899,  900,  901,  940,  903,  941,  942,  943,  907,  972,  909,  973,  974,
-    912,   945,  946,  947,  948,   949,  950,  951,  952,  953,  954,  955,  956,  957,  958,  959,  960,  961,  930,
-    963,   964,  965,  966,  967,   968,  969,  970,  971,  940,  941,  942,  943,  944,  945,  946,  947,  948,  949,
-    950,   951,  952,  953,  954,   955,  956,  957,  958,  959,  960,  961,  962,  963,  964,  965,  966,  967,  968,
-    969,   970,  971,  972,  973,   974,  983,  976,  977,  978,  979,  980,  981,  982,  983,  985,  985,  987,  987,
-    989,   989,  991,  991,  993,   993,  995,  995,  997,  997,  999,  999,  1001, 1001, 1003, 1003, 1005, 1005, 1007,
-    1007,  1008, 1009, 1010, 1011,  952,  1013, 1014, 1016, 1016, 1010, 1019, 1019, 1020, 891,  892,  893,  1104, 1105,
-    1106,  1107, 1108, 1109, 1110,  1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1072, 1073, 1074, 1075, 1076,
-    1077,  1078, 1079, 1080, 1081,  1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095,
-    1096,  1097, 1098, 1099, 1100,  1101, 1102, 1103, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082,
-    1083,  1084, 1085, 1086, 1087,  1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101,
-    1102,  1103, 1104, 1105, 1106,  1107, 1108, 1109, 1110, 1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1121,
-    1121,  1123, 1123, 1125, 1125,  1127, 1127, 1129, 1129, 1131, 1131, 1133, 1133, 1135, 1135, 1137, 1137, 1139, 1139,
-    1141,  1141, 1143, 1143, 1145,  1145, 1147, 1147, 1149, 1149, 1151, 1151, 1153, 1153, 1154, 1155, 1156, 1157, 1158,
-    1159,  1160, 1161, 1163, 1163,  1165, 1165, 1167, 1167, 1169, 1169, 1171, 1171, 1173, 1173, 1175, 1175, 1177, 1177,
-    1179,  1179, 1181, 1181, 1183,  1183, 1185, 1185, 1187, 1187, 1189, 1189, 1191, 1191, 1193, 1193, 1195, 1195, 1197,
-    1197,  1199, 1199, 1201, 1201,  1203, 1203, 1205, 1205, 1207, 1207, 1209, 1209, 1211, 1211, 1213, 1213, 1215, 1215,
-    1231,  1218, 1218, 1220, 1220,  1222, 1222, 1224, 1224, 1226, 1226, 1228, 1228, 1230, 1230, 1231, 1233, 1233, 1235,
-    1235,  1237, 1237, 1239, 1239,  1241, 1241, 1243, 1243, 1245, 1245, 1247, 1247, 1249, 1249, 1251, 1251, 1253, 1253,
-    1255,  1255, 1257, 1257, 1259,  1259, 1261, 1261, 1263, 1263, 1265, 1265, 1267, 1267, 1269, 1269, 1271, 1271, 1273,
-    1273,  1275, 1275, 1277, 1277,  1279, 1279};
-
-static const int32 to_lower_ranges[] = {
-    1280,    2097153,    1328,    1328,    1329,    -1378,  1367,    -1368,   4256,   -11521,  4294,   4294,    4295,
-    11559,   4296,       -4297,   4301,    11565,   4302,   -4303,   5024,    -43889, 5104,    -5113,  5110,    -5111,
-    7305,    7306,       7307,    -7308,   7312,    -4305,  7355,    -7356,   7357,   -4350,   7360,   -7361,   7680,
-    2097153, 7830,       -7831,   7838,    223,     7839,   2097153, 7936,    -7937,  7944,    -7937,  7952,    -7953,
-    7960,    -7953,      7966,    -7967,   7976,    -7969,  7984,    -7985,   7992,   -7985,   8000,   -8001,   8008,
-    -8001,   8014,       -8015,   8025,    8017,    8026,   8026,    8027,    8019,   8028,    8028,   8029,    8021,
-    8030,    8030,       8031,    8023,    8032,    -8033,  8040,    -8033,   8048,   -8049,   8072,   -8065,   8080,
-    -8081,   8088,       -8081,   8096,    -8097,   8104,   -8097,   8112,    -8113,  8120,    -8113,  8122,    -8049,
-    8124,    8115,       8125,    -8126,   8136,    -8051,  8140,    8131,    8141,   -8142,   8152,   -8145,   8154,
-    -8055,   8156,       -8157,   8168,    -8161,   8170,   -8059,   8172,    8165,   8173,    -8174,  8184,    -8057,
-    8186,    -8061,      8188,    8179,    8189,    -8190,  8486,    969,     8487,   -8488,   8490,   107,     8491,
-    229,     8492,       -8493,   8498,    8526,    8499,   -8500,   8544,    -8561,  8560,    -8561,  8579,    8580,
-    8581,    -8582,      9398,    -9425,   9424,    -9425,  11264,   -11313,  11312,  -11313,  11360,  11361,   11362,
-    619,     11363,      7549,    11364,   637,     11365,  -11366,  11367,   11368,  11369,   11370,  11371,   11372,
-    11373,   593,        11374,   625,     11375,   592,    11376,   594,     11377,  2097153, 11380,  11380,   11381,
-    11382,   11383,      -11384,  11390,   -576,    11392,  2097153, 11492,   -11493, 11499,   11500,  11501,   11502,
-    11503,   -11504,     11506,   11507,   11508,   -11509, 42560,   2097153, 42606,  -42607,  42624,  2097153, 42652,
-    -42653,  42786,      2097153, 42800,   -42801,  42802,  2097153, 42864,   -42865, 42873,   42874,  42875,   42876,
-    42877,   7545,       42878,   2097153, 42888,   -42889, 42891,   42892,   42893,  613,     42894,  -42895,  42896,
-    2097153, 42900,      -42901,  42902,   2097153, 42922,  614,     42923,   604,    42924,   609,    42925,   620,
-    42926,   618,        42927,   42927,   42928,   670,    42929,   647,     42930,  669,     42931,  43859,   42932,
-    2097153, 42948,      42900,   42949,   642,     42950,  7566,    42951,   42952,  42953,   42954,  42955,   612,
-    42956,   42957,      42958,   -42959,  42960,   42961,  42962,   -42963,  42966,  2097153, 42972,  411,     42973,
-    -42974,  42997,      42998,   42999,   -43000,  65313,  -65346,  65339,   -65340, 66560,   -66601, 66600,   -66601,
-    66736,   -66777,     66772,   -66773,  66928,   -66968, 66939,   66939,   66940,  -66980,  66955,  66955,   66956,
-    -66996,  66963,      66963,   66964,   -67004,  66966,  -66967,  68736,   -68801, 68787,   -68788, 68944,   -68977,
-    68966,   -68967,     71840,   -71873,  71872,   -71873, 93760,   -93793,  93792,  -93793,  125184, -125219, 125218,
-    -125219, 2147483647, 0};
-
-static const int16 without_diacritics_table[TABLE_SIZE] = {
-    0,    1,    2,    3,    4,    5,    6,    7,    8,    9,    10,   11,   12,   13,   14,   15,   16,   17,   18,
-    19,   20,   21,   22,   23,   24,   25,   26,   27,   28,   29,   30,   31,   32,   33,   34,   35,   36,   37,
-    38,   39,   40,   41,   42,   43,   44,   45,   46,   47,   48,   49,   50,   51,   52,   53,   54,   55,   56,
-    57,   58,   59,   60,   61,   62,   63,   64,   65,   66,   67,   68,   69,   70,   71,   72,   73,   74,   75,
-    76,   77,   78,   79,   80,   81,   82,   83,   84,   85,   86,   87,   88,   89,   90,   91,   92,   93,   94,
-    95,   96,   97,   98,   99,   100,  101,  102,  103,  104,  105,  106,  107,  108,  109,  110,  111,  112,  113,
-    114,  115,  116,  117,  118,  119,  120,  121,  122,  123,  124,  125,  126,  127,  128,  129,  130,  131,  132,
-    133,  134,  135,  136,  137,  138,  139,  140,  141,  142,  143,  144,  145,  146,  147,  148,  149,  150,  151,
-    152,  153,  154,  155,  156,  157,  158,  159,  32,   161,  162,  163,  164,  165,  166,  167,  32,   169,  97,
-    171,  172,  0,    174,  32,   176,  177,  50,   51,   32,   956,  182,  0,    32,   49,   111,  187,  188,  189,
-    190,  191,  65,   65,   65,   65,   65,   65,   198,  67,   69,   69,   69,   69,   73,   73,   73,   73,   208,
-    78,   79,   79,   79,   79,   79,   215,  216,  85,   85,   85,   85,   89,   222,  223,  97,   97,   97,   97,
-    97,   97,   230,  99,   101,  101,  101,  101,  105,  105,  105,  105,  240,  110,  111,  111,  111,  111,  111,
-    247,  248,  117,  117,  117,  117,  121,  254,  121,  65,   97,   65,   97,   65,   97,   67,   99,   67,   99,
-    67,   99,   67,   99,   68,   100,  272,  273,  69,   101,  69,   101,  69,   101,  69,   101,  69,   101,  71,
-    103,  71,   103,  71,   103,  71,   103,  72,   104,  294,  295,  73,   105,  73,   105,  73,   105,  73,   105,
-    73,   305,  306,  307,  74,   106,  75,   107,  312,  76,   108,  76,   108,  76,   108,  76,   108,  321,  322,
-    78,   110,  78,   110,  78,   110,  110,  330,  331,  79,   111,  79,   111,  79,   111,  338,  339,  82,   114,
-    82,   114,  82,   114,  83,   115,  83,   115,  83,   115,  83,   115,  84,   116,  84,   116,  358,  359,  85,
-    117,  85,   117,  85,   117,  85,   117,  85,   117,  85,   117,  87,   119,  89,   121,  89,   90,   122,  90,
-    122,  90,   122,  115,  384,  385,  386,  387,  388,  389,  390,  391,  392,  393,  394,  395,  396,  397,  398,
-    399,  400,  401,  402,  403,  404,  405,  406,  407,  408,  409,  410,  411,  412,  413,  414,  415,  79,   111,
-    418,  419,  420,  421,  422,  423,  424,  425,  426,  427,  428,  429,  430,  85,   117,  433,  434,  435,  436,
-    437,  438,  439,  440,  441,  442,  443,  444,  445,  446,  447,  448,  449,  450,  451,  452,  453,  454,  455,
-    456,  457,  458,  459,  460,  65,   97,   73,   105,  79,   111,  85,   117,  85,   117,  85,   117,  85,   117,
-    85,   117,  477,  65,   97,   65,   97,   198,  230,  484,  485,  71,   103,  75,   107,  79,   111,  79,   111,
-    439,  658,  106,  497,  498,  499,  71,   103,  502,  503,  78,   110,  65,   97,   198,  230,  216,  248,  65,
-    97,   65,   97,   69,   101,  69,   101,  73,   105,  73,   105,  79,   111,  79,   111,  82,   114,  82,   114,
-    85,   117,  85,   117,  83,   115,  84,   116,  540,  541,  72,   104,  544,  545,  546,  547,  548,  549,  65,
-    97,   69,   101,  79,   111,  79,   111,  79,   111,  79,   111,  89,   121,  564,  565,  566,  567,  568,  569,
-    570,  571,  572,  573,  574,  575,  576,  577,  578,  579,  580,  581,  582,  583,  584,  585,  586,  587,  588,
-    589,  590,  591,  592,  593,  594,  595,  596,  597,  598,  599,  600,  601,  602,  603,  604,  605,  606,  607,
-    608,  609,  610,  611,  612,  613,  614,  615,  616,  617,  618,  619,  620,  621,  622,  623,  624,  625,  626,
-    627,  628,  629,  630,  631,  632,  633,  634,  635,  636,  637,  638,  639,  640,  641,  642,  643,  644,  645,
-    646,  647,  648,  649,  650,  651,  652,  653,  654,  655,  656,  657,  658,  659,  660,  661,  662,  663,  664,
-    665,  666,  667,  668,  669,  670,  671,  672,  673,  674,  675,  676,  677,  678,  679,  680,  681,  682,  683,
-    684,  685,  686,  687,  104,  614,  106,  114,  633,  635,  641,  119,  121,  697,  698,  699,  0,    701,  0,
-    703,  704,  705,  706,  707,  708,  709,  710,  711,  712,  713,  714,  715,  716,  717,  718,  719,  720,  721,
-    722,  723,  724,  725,  726,  727,  32,   32,   32,   32,   32,   32,   734,  735,  611,  108,  115,  120,  661,
-    741,  742,  743,  744,  745,  746,  747,  748,  749,  750,  751,  752,  753,  754,  755,  756,  757,  758,  759,
-    760,  761,  762,  763,  764,  765,  766,  767,  0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,    837,  0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-    0,    0,    0,    0,    0,    0,    880,  881,  882,  883,  697,  885,  886,  887,  888,  889,  32,   891,  892,
-    893,  59,   895,  896,  897,  898,  899,  32,   32,   913,  903,  917,  919,  921,  907,  927,  909,  933,  937,
-    953,  913,  914,  915,  916,  917,  918,  919,  920,  921,  922,  923,  924,  925,  926,  927,  928,  929,  930,
-    931,  932,  933,  934,  935,  936,  937,  921,  933,  945,  949,  951,  953,  965,  945,  946,  947,  948,  949,
-    950,  951,  952,  953,  954,  955,  956,  957,  958,  959,  960,  961,  962,  963,  964,  965,  966,  967,  968,
-    969,  953,  965,  959,  965,  969,  975,  946,  952,  933,  933,  933,  966,  960,  983,  984,  985,  986,  987,
-    988,  989,  990,  991,  992,  993,  994,  995,  996,  997,  998,  999,  1000, 1001, 1002, 1003, 1004, 1005, 1006,
-    1007, 954,  961,  962,  1011, 920,  949,  1014, 1015, 1016, 931,  1018, 1019, 1020, 1021, 1022, 1023, 1045, 1045,
-    1026, 1043, 1028, 1029, 1030, 1030, 1032, 1033, 1034, 1035, 1050, 1048, 1059, 1039, 1040, 1041, 1042, 1043, 1044,
-    1045, 1046, 1047, 1048, 1048, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063,
-    1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1080, 1082,
-    1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101,
-    1102, 1103, 1077, 1077, 1106, 1075, 1108, 1109, 1110, 1110, 1112, 1113, 1114, 1115, 1082, 1080, 1091, 1119, 1120,
-    1121, 1122, 1123, 1124, 1125, 1126, 1127, 1128, 1129, 1130, 1131, 1132, 1133, 1134, 1135, 1136, 1137, 1138, 1139,
-    1140, 1141, 1140, 1141, 1144, 1145, 1146, 1147, 1148, 1149, 1150, 1151, 1152, 1153, 1154, 0,    0,    0,    0,
-    0,    0,    0,    1162, 1163, 1164, 1165, 1166, 1167, 1168, 1169, 1170, 1171, 1172, 1173, 1174, 1175, 1176, 1177,
-    1178, 1179, 1180, 1181, 1182, 1183, 1184, 1185, 1186, 1187, 1188, 1189, 1190, 1191, 1192, 1193, 1194, 1195, 1196,
-    1197, 1198, 1199, 1200, 1201, 1202, 1203, 1204, 1205, 1206, 1207, 1208, 1209, 1210, 1211, 1212, 1213, 1214, 1215,
-    1216, 1046, 1078, 1219, 1220, 1221, 1222, 1223, 1224, 1225, 1226, 1227, 1228, 1229, 1230, 1231, 1040, 1072, 1040,
-    1072, 1236, 1237, 1045, 1077, 1240, 1241, 1240, 1241, 1046, 1078, 1047, 1079, 1248, 1249, 1048, 1080, 1048, 1080,
-    1054, 1086, 1256, 1257, 1256, 1257, 1069, 1101, 1059, 1091, 1059, 1091, 1059, 1091, 1063, 1095, 1270, 1271, 1067,
-    1099, 1274, 1275, 1276, 1277, 1278, 1279};
-
-static const int32 without_diacritics_ranges[] = {
-    1280,   -1281,   1425,   0,       1470,   1470,    1471,   0,       1472,       1472,    1473,   0,
-    1475,   1475,    1476,   0,       1478,   1478,    1479,   0,       1480,       -1481,   1536,   0,
-    1542,   -1543,   1552,   0,       1563,   1563,    1564,   0,       1565,       -1566,   1570,   1575,
-    1572,   1608,    1573,   1575,    1574,   1610,    1575,   -1576,   1611,       0,       1632,   -1633,
-    1648,   0,       1649,   -1650,   1728,   1749,    1729,   2097154, 1732,       -1733,   1747,   2097152,
-    1749,   1749,    1750,   0,       1758,   1758,    1759,   0,       1765,       -1766,   1767,   0,
-    1769,   1769,    1770,   0,       1774,   -1775,   1807,   0,       1808,       1808,    1809,   0,
-    1810,   -1811,   1840,   0,       1867,   -1868,   1958,   0,       1969,       -1970,   2027,   0,
-    2036,   -2037,   2045,   0,       2046,   -2047,   2070,   0,       2074,       2074,    2075,   0,
-    2084,   2084,    2085,   0,       2088,   2088,    2089,   0,       2094,       -2095,   2137,   0,
-    2140,   -2141,   2192,   0,       2194,   -2195,   2199,   0,       2208,       -2209,   2250,   0,
-    2308,   -2309,   2345,   2097152, 2347,   -2348,   2353,   2097152, 2355,       2097154, 2358,   -2359,
-    2362,   0,       2365,   2365,    2366,   0,       2384,   2384,    2385,       0,       2392,   -2326,
-    2395,   2332,    2396,   -2338,   2398,   2347,    2399,   2351,    2400,       -2401,   2402,   0,
-    2404,   -2405,   2433,   0,       2436,   -2437,   2492,   0,       2493,       2493,    2494,   0,
-    2501,   -2502,   2503,   0,       2505,   -2506,   2507,   0,       2510,       -2511,   2519,   0,
-    2520,   -2521,   2524,   -2466,   2526,   2526,    2527,   2479,    2528,       -2529,   2530,   0,
-    2532,   -2533,   2558,   0,       2559,   -2560,   2561,   0,       2564,       -2565,   2611,   2097152,
-    2613,   2613,    2614,   2616,    2615,   -2616,   2620,   0,       2621,       2621,    2622,   0,
-    2627,   -2628,   2631,   0,       2633,   -2634,   2635,   0,       2638,       -2639,   2641,   0,
-    2642,   -2643,   2649,   -2583,   2651,   2588,    2652,   -2653,   2654,       2603,    2655,   -2656,
-    2672,   0,       2674,   -2675,   2677,   0,       2678,   -2679,   2689,       0,       2692,   -2693,
-    2748,   0,       2749,   2749,    2750,   0,       2758,   2758,    2759,       0,       2762,   2762,
-    2763,   0,       2766,   -2767,   2786,   0,       2788,   -2789,   2810,       0,       2816,   2816,
-    2817,   0,       2820,   -2821,   2876,   0,       2877,   2877,    2878,       0,       2885,   -2886,
-    2887,   0,       2889,   -2890,   2891,   0,       2894,   -2895,   2901,       0,       2904,   -2905,
-    2908,   -2850,   2910,   -2911,   2914,   0,       2916,   -2917,   2946,       0,       2947,   -2948,
-    2964,   2962,    2965,   -2966,   3006,   0,       3011,   -3012,   3014,       0,       3017,   3017,
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-    194745, 25405,   194746, 25340,   194747, 25448,   194748, 25475,   194749,     25572,   194750, 142321,
-    194751, 25634,   194752, 25541,   194753, 25513,   194754, 14894,   194755,     25705,   194756, 25726,
-    194757, 25757,   194758, 25719,   194759, 14956,   194760, 25935,   194761,     25964,   194762, 143370,
-    194763, 26083,   194764, 26360,   194765, 26185,   194766, 15129,   194767,     26257,   194768, 15112,
-    194769, 15076,   194770, 20882,   194771, 20885,   194772, 26368,   194773,     26268,   194774, 32941,
-    194775, 17369,   194776, 26391,   194777, 26395,   194778, 26401,   194779,     26462,   194780, 26451,
-    194781, 144323,  194782, 15177,   194783, 26618,   194784, 26501,   194785,     26706,   194786, 26757,
-    194787, 144493,  194788, 26766,   194789, 26655,   194790, 26900,   194791,     15261,   194792, 26946,
-    194793, 27043,   194794, 27114,   194795, 27304,   194796, 145059,  194797,     27355,   194798, 15384,
-    194799, 27425,   194800, 145575,  194801, 27476,   194802, 15438,   194803,     27506,   194804, 27551,
-    194805, -27579,  194807, 146061,  194808, 138507,  194809, 146170,  194810,     27726,   194811, 146620,
-    194812, 27839,   194813, 27853,   194814, 27751,   194815, 27926,   194816,     27966,   194817, 28023,
-    194818, 27969,   194819, 28009,   194820, 28024,   194821, 28037,   194822,     146718,  194823, 27956,
-    194824, 28207,   194825, 28270,   194826, 15667,   194827, 28363,   194828,     28359,   194829, 147153,
-    194830, 28153,   194831, 28526,   194832, 147294,  194833, 147342,  194834,     28614,   194835, 28729,
-    194836, 28702,   194837, 28699,   194838, 15766,   194839, 28746,   194840,     28797,   194841, 28791,
-    194842, 28845,   194843, 132389,  194844, 28997,   194845, 148067,  194846,     29084,   194847, 148395,
-    194848, 29224,   194849, 29237,   194850, 29264,   194851, 149000,  194852,     29312,   194853, 29333,
-    194854, 149301,  194855, 149524,  194856, 29562,   194857, 29579,   194858,     16044,   194859, 29605,
-    194860, 16056,   194862, 29767,   194863, 29788,   194864, 29809,   194865,     29829,   194866, 29898,
-    194867, 16155,   194868, 29988,   194869, 150582,  194870, 30014,   194871,     150674,  194872, 30064,
-    194873, 139679,  194874, 30224,   194875, 151457,  194876, 151480,  194877,     151620,  194878, 16380,
-    194879, 16392,   194880, 30452,   194881, 151795,  194882, 151794,  194883,     151833,  194884, 151859,
-    194885, -30495,  194887, 30495,   194888, 30538,   194889, 16441,   194890,     30603,   194891, 16454,
-    194892, 16534,   194893, 152605,  194894, 30798,   194895, 30860,   194896,     30924,   194897, 16611,
-    194898, 153126,  194899, 31062,   194900, 153242,  194901, 153285,  194902,     31119,   194903, 31211,
-    194904, 16687,   194905, 31296,   194906, 31306,   194907, 31311,   194908,     153980,  194909, 154279,
-    194911, 31470,   194912, 16898,   194913, 154539,  194914, 31686,   194915,     31689,   194916, 16935,
-    194917, 154752,  194918, 31954,   194919, 17056,   194920, 31976,   194921,     31971,   194922, 32000,
-    194923, 155526,  194924, 32099,   194925, 17153,   194926, 32199,   194927,     32258,   194928, 32325,
-    194929, 17204,   194930, 156200,  194931, 156231,  194932, 17241,   194933,     156377,  194934, 32634,
-    194935, 156478,  194936, 32661,   194937, 32762,   194938, 32773,   194939,     156890,  194940, 156963,
-    194941, 32864,   194942, 157096,  194943, 32880,   194944, 144223,  194945,     17365,   194946, 32946,
-    194947, 33027,   194948, 17419,   194949, 33086,   194950, 23221,   194951,     157607,  194952, 157621,
-    194953, 144275,  194954, 144284,  194955, 33281,   194956, 33284,   194957,     36766,   194958, 17515,
-    194959, 33425,   194960, 33419,   194961, 33437,   194962, 21171,   194963,     33457,   194964, 33459,
-    194965, 33469,   194966, 33510,   194967, 158524,  194968, 33509,   194969,     33565,   194970, 33635,
-    194971, 33709,   194972, 33571,   194973, 33725,   194974, 33767,   194975,     33879,   194976, 33619,
-    194977, 33738,   194978, 33740,   194979, 33756,   194980, 158774,  194981,     159083,  194982, 158933,
-    194983, 17707,   194984, 34033,   194985, 34035,   194986, 34070,   194987,     160714,  194988, 34148,
-    194989, 159532,  194990, 17757,   194991, 17761,   194992, 159665,  194993,     159954,  194994, 17771,
-    194995, 34384,   194996, 34396,   194997, 34407,   194998, 34409,   194999,     34473,   195000, 34440,
-    195001, 34574,   195002, 34530,   195003, 34681,   195004, 34600,   195005,     34667,   195006, 34694,
-    195007, 17879,   195008, 34785,   195009, 34817,   195010, 17913,   195011,     34912,   195012, 34915,
-    195013, 161383,  195014, 35031,   195015, 35038,   195016, 17973,   195017,     35066,   195018, 13499,
-    195019, 161966,  195020, 162150,  195021, 18110,   195022, 18119,   195023,     35488,   195024, 35565,
-    195025, 35722,   195026, 35925,   195027, 162984,  195028, 36011,   195029,     36033,   195030, 36123,
-    195031, 36215,   195032, 163631,  195033, 133124,  195034, 36299,   195035,     36284,   195036, 36336,
-    195037, 133342,  195038, 36564,   195039, 36664,   195040, 165330,  195041,     165357,  195042, 37012,
-    195043, 37105,   195044, 37137,   195045, 165678,  195046, 37147,   195047,     37432,   195048, -37592,
-    195050, 37500,   195051, 37881,   195052, 37909,   195053, 166906,  195054,     38283,   195055, 18837,
-    195056, 38327,   195057, 167287,  195058, 18918,   195059, 38595,   195060,     23986,   195061, 38691,
-    195062, 168261,  195063, 168474,  195064, 19054,   195065, 19062,   195066,     38880,   195067, 168970,
-    195068, 19122,   195069, 169110,  195070, 38923,   195072, 38953,   195073,     169398,  195074, 39138,
-    195075, 19251,   195076, 39209,   195077, 39335,   195078, 39362,   195079,     39422,   195080, 19406,
-    195081, 170800,  195082, 39698,   195083, 40000,   195084, 40189,   195085,     19662,   195086, 19693,
-    195087, 40295,   195088, 172238,  195089, 19704,   195090, 172293,  195091,     172558,  195092, 172689,
-    195093, 40635,   195094, 19798,   195095, 40697,   195096, 40702,   195097,     40709,   195098, 40719,
-    195099, 40726,   195100, 40763,   195101, 173568,  195102, -195103, 917505,     0,       917506, -917507,
-    917536, 0,       917632, -917633, 917760, 0,       918000, -918001, 2147483647, 0};
-
-UnicodeSimpleCategory get_unicode_simple_category(uint32 code) {
-  if (code < 128) {
-    return static_cast<UnicodeSimpleCategory>(unicode_simple_category_table[code]);
-  }
-  auto jump_pos_index = code <= 0x20000 ? code >> 7 : (0x20000 >> 7) - (0x20000 >> 16) + (code >> 16);
-  // CHECK(jump_pos_index < sizeof(unicode_simple_category_ranges) / sizeof(unicode_simple_category_ranges[0]));
-  auto it = unicode_simple_category_ranges + unicode_simple_category_jump_pos[jump_pos_index];
-  code = (code << 5) + 30;
-  // CHECK(unicode_simple_category_ranges[unicode_simple_category_jump_pos[jump_pos_index + 1]] > code);
-  while (*it <= code) {
-    ++it;
-  }
-  return static_cast<UnicodeSimpleCategory>(*(it - 1) & 31);
-}
-
-/**
- * Search pregenerated ranges of pairs for the replacement of specified character
- */
-template <size_t N>
-static uint32 binary_search_ranges(const int32 (&ranges)[N], uint32 code) {
-  if (code > 0x10ffff) {
-    return 0;
-  }
-
-  auto code_int = static_cast<int32>(code);
-  size_t l = 0;
-  size_t r = N;
-  while (l < r) {
-    size_t m = ((l + r + 2) >> 2) << 1;
-    if (ranges[m] <= code_int) {
-      l = m;
-    } else {
-      r = m - 2;
-    }
-  }
-
-  int32 t = ranges[l + 1];
-  if (t < 0) {
-    return code - ranges[l] + (~t);
-  }
-  if (t <= 0x10ffff) {
-    return t;
-  }
-  switch (t - 0x200000) {
-    case 0:
-      return (code & -2);
-    case 1:
-      return (code | 1);
-    case 2:
-      return ((code - 1) | 1);
-    default:
-      LOG(FATAL) << code << " " << l << " " << r << " " << t;
-      return 0;
-  }
-}
-
-uint32 prepare_search_character(uint32 code) {
-  if (code < TABLE_SIZE) {
-    return prepare_search_character_table[code];
-  } else {
-    return binary_search_ranges(prepare_search_character_ranges, code);
-  }
-}
-
-uint32 unicode_to_lower(uint32 code) {
-  if (code < TABLE_SIZE) {
-    return to_lower_table[code];
-  } else {
-    return binary_search_ranges(to_lower_ranges, code);
-  }
-}
-
-uint32 remove_diacritics(uint32 code) {
-  if (code < TABLE_SIZE) {
-    return without_diacritics_table[code];
-  } else {
-    return binary_search_ranges(without_diacritics_ranges, code);
-  }
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/unicode.h b/third-party/td/td/tdutils/td/utils/unicode.h
deleted file mode 100644
index b27279c5cc..0000000000
--- a/third-party/td/td/tdutils/td/utils/unicode.h
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-namespace td {
-
-enum class UnicodeSimpleCategory { Unknown, Letter, DecimalNumber, Number, Separator };
-
-UnicodeSimpleCategory get_unicode_simple_category(uint32 code);
-
-/**
- * Prepares unicode character for search, leaving only digits and lowercased letters.
- * Returns code of replacing character or 0 if the character should be skipped.
- */
-uint32 prepare_search_character(uint32 code);
-
-/**
- * Converts unicode character to lower case.
- */
-uint32 unicode_to_lower(uint32 code);
-
-/**
- * Removes diacritics from a unicode character.
- */
-uint32 remove_diacritics(uint32 code);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/unique_ptr.h b/third-party/td/td/tdutils/td/utils/unique_ptr.h
deleted file mode 100644
index 2cf4c98cb6..0000000000
--- a/third-party/td/td/tdutils/td/utils/unique_ptr.h
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include <cstddef>
-#include <type_traits>
-#include <utility>
-
-namespace td {
-
-// const-correct and compiler-friendly (g++ RAM and CPU usage 10 times less than for std::unique_ptr)
-// replacement for std::unique_ptr
-template <class T>
-class unique_ptr final {
- public:
-  using pointer = T *;
-  using element_type = T;
-
-  unique_ptr() noexcept = default;
-  unique_ptr(const unique_ptr &) = delete;
-  unique_ptr &operator=(const unique_ptr &) = delete;
-  unique_ptr(unique_ptr &&other) noexcept : ptr_(other.release()) {
-  }
-  unique_ptr &operator=(unique_ptr &&other) noexcept {
-    reset(other.release());
-    return *this;
-  }
-  ~unique_ptr() {
-    reset();
-  }
-
-  unique_ptr(std::nullptr_t) noexcept {
-  }
-  explicit unique_ptr(T *ptr) noexcept : ptr_(ptr) {
-  }
-  template <class S, class = std::enable_if_t<std::is_base_of<T, S>::value>>
-  unique_ptr(unique_ptr<S> &&other) noexcept : ptr_(static_cast<S *>(other.release())) {
-  }
-  template <class S, class = std::enable_if_t<std::is_base_of<T, S>::value>>
-  unique_ptr &operator=(unique_ptr<S> &&other) noexcept {
-    reset(static_cast<T *>(other.release()));
-    return *this;
-  }
-  void reset(T *new_ptr = nullptr) noexcept {
-    static_assert(sizeof(T) > 0, "Can't destroy unique_ptr with incomplete type");
-    delete ptr_;
-    ptr_ = new_ptr;
-  }
-  T *release() noexcept {
-    auto res = ptr_;
-    ptr_ = nullptr;
-    return res;
-  }
-  T *get() noexcept {
-    return ptr_;
-  }
-  const T *get() const noexcept {
-    return ptr_;
-  }
-  T *operator->() noexcept {
-    return ptr_;
-  }
-  const T *operator->() const noexcept {
-    return ptr_;
-  }
-  T &operator*() noexcept {
-    return *ptr_;
-  }
-  const T &operator*() const noexcept {
-    return *ptr_;
-  }
-  explicit operator bool() const noexcept {
-    return ptr_ != nullptr;
-  }
-
- private:
-  T *ptr_{nullptr};
-};
-
-template <class T>
-bool operator==(std::nullptr_t, const unique_ptr<T> &p) {
-  return !p;
-}
-template <class T>
-bool operator==(const unique_ptr<T> &p, std::nullptr_t) {
-  return !p;
-}
-template <class T>
-bool operator!=(std::nullptr_t, const unique_ptr<T> &p) {
-  return static_cast<bool>(p);
-}
-template <class T>
-bool operator!=(const unique_ptr<T> &p, std::nullptr_t) {
-  return static_cast<bool>(p);
-}
-
-template <class T>
-bool operator==(const unique_ptr<T> &lhs, const unique_ptr<T> &rhs) {
-  if (lhs == nullptr) {
-    return rhs == nullptr;
-  }
-  if (rhs == nullptr) {
-    return false;
-  }
-  return *lhs == *rhs;
-}
-
-template <class T>
-bool operator!=(const unique_ptr<T> &lhs, const unique_ptr<T> &rhs) {
-  return !(lhs == rhs);
-}
-
-template <class Type, class... Args>
-unique_ptr<Type> make_unique(Args &&...args) {
-  return unique_ptr<Type>(new Type(std::forward<Args>(args)...));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/unique_value_ptr.h b/third-party/td/td/tdutils/td/utils/unique_value_ptr.h
deleted file mode 100644
index ce19585153..0000000000
--- a/third-party/td/td/tdutils/td/utils/unique_value_ptr.h
+++ /dev/null
@@ -1,93 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/unique_ptr.h"
-
-#include <cstddef>
-#include <utility>
-
-namespace td {
-
-// copyable by value td::unique_ptr
-template <class T>
-class unique_value_ptr final {
- public:
-  unique_value_ptr() noexcept = default;
-  unique_value_ptr(const unique_value_ptr &other) {
-    if (other != nullptr) {
-      ptr_ = make_unique<T>(*other);
-    }
-  }
-  unique_value_ptr &operator=(const unique_value_ptr &other) {
-    if (other == nullptr) {
-      ptr_ = nullptr;
-    } else {
-      ptr_ = make_unique<T>(*other);
-    }
-    return *this;
-  }
-  unique_value_ptr(unique_value_ptr &&) noexcept = default;
-  unique_value_ptr &operator=(unique_value_ptr &&) = default;
-  unique_value_ptr(std::nullptr_t) noexcept {
-  }
-  unique_value_ptr(unique_ptr<T> &&ptr) noexcept : ptr_(std::move(ptr)) {
-  }
-  T *get() noexcept {
-    return ptr_.get();
-  }
-  const T *get() const noexcept {
-    return ptr_.get();
-  }
-  T *operator->() noexcept {
-    return ptr_.get();
-  }
-  const T *operator->() const noexcept {
-    return ptr_.get();
-  }
-  T &operator*() noexcept {
-    return *ptr_;
-  }
-  const T &operator*() const noexcept {
-    return *ptr_;
-  }
-  explicit operator bool() const noexcept {
-    return ptr_ != nullptr;
-  }
-
- private:
-  unique_ptr<T> ptr_;
-};
-
-template <class T>
-bool operator==(const unique_value_ptr<T> &p, std::nullptr_t) {
-  return !p;
-}
-template <class T>
-bool operator!=(const unique_value_ptr<T> &p, std::nullptr_t) {
-  return static_cast<bool>(p);
-}
-
-template <class T>
-bool operator==(const unique_value_ptr<T> &lhs, const unique_value_ptr<T> &rhs) {
-  if (lhs == nullptr) {
-    return rhs == nullptr;
-  }
-  return rhs != nullptr && *lhs == *rhs;
-}
-
-template <class T>
-bool operator!=(const unique_value_ptr<T> &lhs, const unique_value_ptr<T> &rhs) {
-  return !(lhs == rhs);
-}
-
-template <class Type, class... Args>
-unique_value_ptr<Type> make_unique_value(Args &&...args) {
-  return unique_value_ptr<Type>(make_unique<Type>(std::forward<Args>(args)...));
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/utf8.cpp b/third-party/td/td/tdutils/td/utils/utf8.cpp
deleted file mode 100644
index 05525ada7a..0000000000
--- a/third-party/td/td/tdutils/td/utils/utf8.cpp
+++ /dev/null
@@ -1,196 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/utf8.h"
-
-#include "td/utils/misc.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/unicode.h"
-
-namespace td {
-
-bool check_utf8(CSlice str) {
-  const char *data = str.data();
-  const char *data_end = data + str.size();
-  do {
-    uint32 a = static_cast<unsigned char>(*data++);
-    if ((a & 0x80) == 0) {
-      if (data == data_end + 1) {
-        return true;
-      }
-      continue;
-    }
-
-#define ENSURE(condition) \
-  if (!(condition)) {     \
-    return false;         \
-  }
-
-    ENSURE((a & 0x40) != 0);
-
-    uint32 b = static_cast<unsigned char>(*data++);
-    ENSURE((b & 0xc0) == 0x80);
-    if ((a & 0x20) == 0) {
-      ENSURE((a & 0x1e) > 0);
-      continue;
-    }
-
-    uint32 c = static_cast<unsigned char>(*data++);
-    ENSURE((c & 0xc0) == 0x80);
-    if ((a & 0x10) == 0) {
-      uint32 x = (((a & 0x0f) << 6) | (b & 0x20));
-      ENSURE(x != 0 && x != 0x360);  // surrogates
-      continue;
-    }
-
-    uint32 d = static_cast<unsigned char>(*data++);
-    ENSURE((d & 0xc0) == 0x80);
-    if ((a & 0x08) == 0) {
-      uint32 t = (((a & 0x07) << 6) | (b & 0x30));
-      ENSURE(0 < t && t < 0x110);  // end of unicode
-      continue;
-    }
-
-    return false;
-#undef ENSURE
-  } while (true);
-
-  UNREACHABLE();
-  return false;
-}
-
-const unsigned char *next_utf8_unsafe(const unsigned char *ptr, uint32 *code) {
-  uint32 a = ptr[0];
-  if ((a & 0x80) == 0) {
-    *code = a;
-    return ptr + 1;
-  } else if ((a & 0x20) == 0) {
-    *code = ((a & 0x1f) << 6) | (ptr[1] & 0x3f);
-    return ptr + 2;
-  } else if ((a & 0x10) == 0) {
-    *code = ((a & 0x0f) << 12) | ((ptr[1] & 0x3f) << 6) | (ptr[2] & 0x3f);
-    return ptr + 3;
-  } else if ((a & 0x08) == 0) {
-    *code = ((a & 0x07) << 18) | ((ptr[1] & 0x3f) << 12) | ((ptr[2] & 0x3f) << 6) | (ptr[3] & 0x3f);
-    return ptr + 4;
-  }
-  UNREACHABLE();
-  *code = 0;
-  return ptr;
-}
-
-unsigned char *append_utf8_character_unsafe(unsigned char *ptr, uint32 code) {
-  if (code <= 0x7f) {
-    *ptr++ = static_cast<unsigned char>(code);
-  } else if (code <= 0x7ff) {
-    *ptr++ = static_cast<unsigned char>(0xc0 | (code >> 6));
-    *ptr++ = static_cast<unsigned char>(0x80 | (code & 0x3f));
-  } else if (code <= 0xffff) {
-    *ptr++ = static_cast<unsigned char>(0xe0 | (code >> 12));
-    *ptr++ = static_cast<unsigned char>(0x80 | ((code >> 6) & 0x3f));
-    *ptr++ = static_cast<unsigned char>(0x80 | (code & 0x3f));
-  } else {
-    *ptr++ = static_cast<unsigned char>(0xf0 | (code >> 18));
-    *ptr++ = static_cast<unsigned char>(0x80 | ((code >> 12) & 0x3f));
-    *ptr++ = static_cast<unsigned char>(0x80 | ((code >> 6) & 0x3f));
-    *ptr++ = static_cast<unsigned char>(0x80 | (code & 0x3f));
-  }
-  return ptr;
-}
-
-string utf8_to_lower(Slice str) {
-  string result;
-  auto pos = str.ubegin();
-  auto end = str.uend();
-  while (pos != end) {
-    uint32 code;
-    pos = next_utf8_unsafe(pos, &code);
-    append_utf8_character(result, unicode_to_lower(code));
-  }
-  return result;
-}
-
-vector<string> utf8_get_search_words(Slice str) {
-  bool in_word = false;
-  string word;
-  vector<string> words;
-  auto pos = str.ubegin();
-  auto end = str.uend();
-  while (pos != end) {
-    uint32 code;
-    pos = next_utf8_unsafe(pos, &code);
-
-    code = prepare_search_character(code);
-    if (code == 0) {
-      continue;
-    }
-    if (code == ' ') {
-      if (in_word) {
-        words.push_back(std::move(word));
-        word.clear();
-        in_word = false;
-      }
-    } else {
-      in_word = true;
-      code = remove_diacritics(code);
-      append_utf8_character(word, code);
-    }
-  }
-  if (in_word) {
-    words.push_back(std::move(word));
-  }
-  return words;
-}
-
-string utf8_prepare_search_string(Slice str) {
-  return implode(utf8_get_search_words(str));
-}
-
-string utf8_encode(CSlice data) {
-  if (check_utf8(data)) {
-    return data.str();
-  }
-  return PSTRING() << "url_decode(" << url_encode(data) << ')';
-}
-
-size_t utf8_utf16_length(Slice str) {
-  size_t result = 0;
-  for (auto c : str) {
-    result += is_utf8_character_first_code_unit(c) + ((c & 0xf8) == 0xf0);
-  }
-  return result;
-}
-
-Slice utf8_utf16_truncate(Slice str, size_t length) {
-  for (size_t i = 0; i < str.size(); i++) {
-    auto c = static_cast<unsigned char>(str[i]);
-    if (is_utf8_character_first_code_unit(c)) {
-      if (length <= 0) {
-        return str.substr(0, i);
-      } else {
-        length--;
-        if (c >= 0xf0) {  // >= 4 bytes in symbol => surrogate pair
-          length--;
-        }
-      }
-    }
-  }
-  return str;
-}
-
-Slice utf8_utf16_substr(Slice str, size_t offset) {
-  if (offset == 0) {
-    return str;
-  }
-  auto offset_pos = utf8_utf16_truncate(str, offset).size();
-  return str.substr(offset_pos);
-}
-
-Slice utf8_utf16_substr(Slice str, size_t offset, size_t length) {
-  return utf8_utf16_truncate(utf8_utf16_substr(str, offset), length);
-}
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/td/utils/utf8.h b/third-party/td/td/tdutils/td/utils/utf8.h
deleted file mode 100644
index b9db903fc0..0000000000
--- a/third-party/td/td/tdutils/td/utils/utf8.h
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-
-namespace td {
-
-/// checks UTF-8 string for correctness
-bool check_utf8(CSlice str);
-
-/// checks if a code unit is a first code unit of a UTF-8 character
-inline bool is_utf8_character_first_code_unit(unsigned char c) {
-  return (c & 0xC0) != 0x80;
-}
-
-/// returns length of UTF-8 string in characters
-inline size_t utf8_length(Slice str) {
-  size_t result = 0;
-  for (auto c : str) {
-    result += is_utf8_character_first_code_unit(c);
-  }
-  return result;
-}
-
-/// returns length of UTF-8 string in UTF-16 code units
-size_t utf8_utf16_length(Slice str);
-
-/// appends a Unicode character using UTF-8 encoding
-template <class T>
-void append_utf8_character(T &str, uint32 code) {
-  if (code <= 0x7f) {
-    str.push_back(static_cast<char>(code));
-  } else if (code <= 0x7ff) {
-    str.push_back(static_cast<char>(0xc0 | (code >> 6)));  // implementation-defined
-    str.push_back(static_cast<char>(0x80 | (code & 0x3f)));
-  } else if (code <= 0xffff) {
-    str.push_back(static_cast<char>(0xe0 | (code >> 12)));  // implementation-defined
-    str.push_back(static_cast<char>(0x80 | ((code >> 6) & 0x3f)));
-    str.push_back(static_cast<char>(0x80 | (code & 0x3f)));
-  } else {
-    str.push_back(static_cast<char>(0xf0 | (code >> 18)));  // implementation-defined
-    str.push_back(static_cast<char>(0x80 | ((code >> 12) & 0x3f)));
-    str.push_back(static_cast<char>(0x80 | ((code >> 6) & 0x3f)));
-    str.push_back(static_cast<char>(0x80 | (code & 0x3f)));
-  }
-}
-
-/// moves pointer one UTF-8 character back
-inline const unsigned char *prev_utf8_unsafe(const unsigned char *ptr) {
-  while (!is_utf8_character_first_code_unit(*--ptr)) {
-    // pass
-  }
-  return ptr;
-}
-
-/// moves pointer one UTF-8 character forward and saves code of the skipped character in *code
-const unsigned char *next_utf8_unsafe(const unsigned char *ptr, uint32 *code);
-
-/// appends a Unicode character using UTF-8 encoding and returns updated pointer
-unsigned char *append_utf8_character_unsafe(unsigned char *ptr, uint32 code);
-
-/// truncates UTF-8 string to the given length in Unicode characters
-template <class T>
-T utf8_truncate(T str, size_t length) {
-  if (str.size() > length) {
-    for (size_t i = 0; i < str.size(); i++) {
-      if (is_utf8_character_first_code_unit(static_cast<unsigned char>(str[i]))) {
-        if (length == 0) {
-          return str.substr(0, i);
-        } else {
-          length--;
-        }
-      }
-    }
-  }
-  return str;
-}
-
-/// truncates UTF-8 string to the given length given in UTF-16 code units
-Slice utf8_utf16_truncate(Slice str, size_t length);
-
-template <class T>
-T utf8_substr(T str, size_t offset) {
-  if (offset == 0) {
-    return str;
-  }
-  auto offset_pos = utf8_truncate(str, offset).size();
-  return str.substr(offset_pos);
-}
-
-template <class T>
-T utf8_substr(T str, size_t offset, size_t length) {
-  return utf8_truncate(utf8_substr(str, offset), length);
-}
-
-Slice utf8_utf16_substr(Slice str, size_t offset);
-
-Slice utf8_utf16_substr(Slice str, size_t offset, size_t length);
-
-/// Returns UTF-8 string converted to lower case.
-string utf8_to_lower(Slice str);
-
-/// Returns UTF-8 string split by words for search.
-vector<string> utf8_get_search_words(Slice str);
-
-/// Returns UTF-8 string prepared for search, leaving only digits and lowercased letters.
-string utf8_prepare_search_string(Slice str);
-
-/// Returns valid UTF-8 representation of the string.
-string utf8_encode(CSlice data);
-
-}  // namespace td
diff --git a/third-party/td/td/tdutils/test/ChainScheduler.cpp b/third-party/td/td/tdutils/test/ChainScheduler.cpp
deleted file mode 100644
index 19df4f8ce5..0000000000
--- a/third-party/td/td/tdutils/test/ChainScheduler.cpp
+++ /dev/null
@@ -1,244 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/algorithm.h"
-#include "td/utils/ChainScheduler.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Span.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-
-#include <memory>
-#include <numeric>
-
-TEST(ChainScheduler, CreateAfterActive) {
-  td::ChainScheduler<int> scheduler;
-  td::vector<td::ChainScheduler<int>::ChainId> chains{1};
-
-  auto first_task_id = scheduler.create_task(chains, 1);
-  ASSERT_EQ(first_task_id, scheduler.start_next_task().unwrap().task_id);
-  auto second_task_id = scheduler.create_task(chains, 2);
-  ASSERT_EQ(second_task_id, scheduler.start_next_task().unwrap().task_id);
-}
-
-TEST(ChainScheduler, RestartAfterActive) {
-  td::ChainScheduler<int> scheduler;
-  std::vector<td::ChainScheduler<int>::ChainId> chains{1};
-
-  auto first_task_id = scheduler.create_task(chains, 1);
-  auto second_task_id = scheduler.create_task(chains, 2);
-  ASSERT_EQ(first_task_id, scheduler.start_next_task().unwrap().task_id);
-  ASSERT_EQ(second_task_id, scheduler.start_next_task().unwrap().task_id);
-
-  scheduler.reset_task(first_task_id);
-  ASSERT_EQ(first_task_id, scheduler.start_next_task().unwrap().task_id);
-
-  scheduler.reset_task(second_task_id);
-  ASSERT_EQ(second_task_id, scheduler.start_next_task().unwrap().task_id);
-}
-
-TEST(ChainScheduler, SendAfterRestart) {
-  td::ChainScheduler<int> scheduler;
-  std::vector<td::ChainScheduler<int>::ChainId> chains{1};
-
-  auto first_task_id = scheduler.create_task(chains, 1);
-  auto second_task_id = scheduler.create_task(chains, 2);
-  ASSERT_EQ(first_task_id, scheduler.start_next_task().unwrap().task_id);
-  ASSERT_EQ(second_task_id, scheduler.start_next_task().unwrap().task_id);
-
-  scheduler.reset_task(first_task_id);
-
-  scheduler.create_task(chains, 3);
-
-  ASSERT_EQ(first_task_id, scheduler.start_next_task().unwrap().task_id);
-  ASSERT_TRUE(!scheduler.start_next_task());
-}
-
-TEST(ChainScheduler, Basic) {
-  td::ChainScheduler<int> scheduler;
-  for (int i = 0; i < 100; i++) {
-    scheduler.create_task({td::ChainScheduler<int>::ChainId{1}}, i);
-  }
-  int j = 0;
-  while (j != 100) {
-    td::vector<td::ChainScheduler<int>::TaskId> tasks;
-    while (true) {
-      auto o_task_id = scheduler.start_next_task();
-      if (!o_task_id) {
-        break;
-      }
-      auto task_id = o_task_id.value().task_id;
-      auto extra = *scheduler.get_task_extra(task_id);
-      auto parents =
-          td::transform(o_task_id.value().parents, [&](auto parent) { return *scheduler.get_task_extra(parent); });
-      LOG(INFO) << "Start " << extra << parents;
-      CHECK(extra == j);
-      j++;
-      tasks.push_back(task_id);
-    }
-    for (auto &task_id : tasks) {
-      auto extra = *scheduler.get_task_extra(task_id);
-      LOG(INFO) << "Finish " << extra;
-      scheduler.finish_task(task_id);
-    }
-  }
-}
-
-struct ChainSchedulerQuery;
-using QueryPtr = std::shared_ptr<ChainSchedulerQuery>;
-using ChainId = td::ChainScheduler<QueryPtr>::ChainId;
-using TaskId = td::ChainScheduler<QueryPtr>::TaskId;
-
-struct ChainSchedulerQuery {
-  int id{};
-  TaskId task_id{};
-  bool is_ok{};
-  bool skipped{};
-};
-
-TEST(ChainScheduler, Stress) {
-  td::Random::Xorshift128plus rnd(123);
-  int max_query_id = 100000;
-  int MAX_INFLIGHT_QUERIES = 20;
-  int ChainsN = 4;
-
-  struct QueryWithParents {
-    TaskId task_id;
-    QueryPtr id;
-    td::vector<QueryPtr> parents;
-  };
-  td::vector<QueryWithParents> active_queries;
-
-  td::ChainScheduler<QueryPtr> scheduler;
-  td::vector<td::vector<QueryPtr>> chains(ChainsN + 1);
-  int inflight_queries{};
-  int current_query_id{};
-  int sent_cnt{};
-  bool done = false;
-  std::vector<TaskId> pending_queries;
-
-  auto schedule_new_query = [&] {
-    if (current_query_id > max_query_id) {
-      if (inflight_queries == 0) {
-        done = true;
-      }
-      return;
-    }
-    if (inflight_queries >= MAX_INFLIGHT_QUERIES) {
-      return;
-    }
-    auto query_id = current_query_id++;
-    auto query = std::make_shared<ChainSchedulerQuery>();
-    query->id = query_id;
-    int chain_n = rnd.fast(1, ChainsN);
-    td::vector<ChainId> chain_ids(ChainsN);
-    std::iota(chain_ids.begin(), chain_ids.end(), 1);
-    td::rand_shuffle(td::as_mutable_span(chain_ids), rnd);
-    chain_ids.resize(chain_n);
-    for (auto chain_id : chain_ids) {
-      chains[td::narrow_cast<size_t>(chain_id)].push_back(query);
-    }
-    auto task_id = scheduler.create_task(chain_ids, query);
-    query->task_id = task_id;
-    pending_queries.push_back(task_id);
-    inflight_queries++;
-  };
-
-  auto check_parents_ok = [&](const QueryWithParents &query_with_parents) -> bool {
-    return td::all_of(query_with_parents.parents, [](const auto &parent) { return parent->is_ok; });
-  };
-
-  auto to_query_ptr = [&](TaskId task_id) {
-    return *scheduler.get_task_extra(task_id);
-  };
-  auto flush_pending_queries = [&] {
-    while (true) {
-      auto o_task_with_parents = scheduler.start_next_task();
-      if (!o_task_with_parents) {
-        break;
-      }
-      auto task_with_parents = o_task_with_parents.unwrap();
-      QueryWithParents query_with_parents;
-      query_with_parents.task_id = task_with_parents.task_id;
-      query_with_parents.id = to_query_ptr(task_with_parents.task_id);
-      query_with_parents.parents = td::transform(task_with_parents.parents, to_query_ptr);
-      active_queries.push_back(query_with_parents);
-      sent_cnt++;
-    }
-  };
-  auto skip_one_query = [&] {
-    if (pending_queries.empty()) {
-      return;
-    }
-    auto it = pending_queries.begin() + rnd.fast(0, static_cast<int>(pending_queries.size()) - 1);
-    auto task_id = *it;
-    pending_queries.erase(it);
-    td::remove_if(active_queries, [&](auto &q) { return q.task_id == task_id; });
-
-    auto query = *scheduler.get_task_extra(task_id);
-    query->skipped = true;
-    scheduler.finish_task(task_id);
-    inflight_queries--;
-    LOG(INFO) << "Skip " << query->id;
-  };
-  auto execute_one_query = [&] {
-    if (active_queries.empty()) {
-      return;
-    }
-    auto it = active_queries.begin() + rnd.fast(0, static_cast<int>(active_queries.size()) - 1);
-    auto query_with_parents = *it;
-    active_queries.erase(it);
-
-    auto query = query_with_parents.id;
-    if (rnd.fast(0, 20) == 0) {
-      scheduler.finish_task(query->task_id);
-      td::remove(pending_queries, query->task_id);
-      inflight_queries--;
-      LOG(INFO) << "Fail " << query->id;
-    } else if (check_parents_ok(query_with_parents)) {
-      query->is_ok = true;
-      scheduler.finish_task(query->task_id);
-      td::remove(pending_queries, query->task_id);
-      inflight_queries--;
-      LOG(INFO) << "OK " << query->id;
-    } else {
-      scheduler.reset_task(query->task_id);
-      LOG(INFO) << "Reset " << query->id;
-    }
-  };
-
-  td::RandomSteps steps({{schedule_new_query, 100}, {execute_one_query, 100}, {skip_one_query, 10}});
-  while (!done) {
-    steps.step(rnd);
-    flush_pending_queries();
-    // LOG(INFO) << scheduler;
-  }
-  LOG(INFO) << "Sent queries count " << sent_cnt;
-  LOG(INFO) << "Total queries " << current_query_id;
-  for (auto &chain : chains) {
-    int prev_ok = -1;
-    int failed_cnt = 0;
-    int ok_cnt = 0;
-    int skipped_cnt = 0;
-    for (auto &q : chain) {
-      if (q->is_ok) {
-        CHECK(prev_ok < q->id);
-        prev_ok = q->id;
-        ok_cnt++;
-      } else {
-        if (q->skipped) {
-          skipped_cnt++;
-        } else {
-          failed_cnt++;
-        }
-      }
-    }
-    LOG(INFO) << "Chain ok " << ok_cnt << " failed " << failed_cnt << " skipped " << skipped_cnt;
-  }
-}
diff --git a/third-party/td/td/tdutils/test/ConcurrentHashMap.cpp b/third-party/td/td/tdutils/test/ConcurrentHashMap.cpp
deleted file mode 100644
index 6a30eb343a..0000000000
--- a/third-party/td/td/tdutils/test/ConcurrentHashMap.cpp
+++ /dev/null
@@ -1,250 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/ConcurrentHashTable.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/Mutex.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/SpinLock.h"
-#include "td/utils/tests.h"
-
-#include <atomic>
-
-#if !TD_THREAD_UNSUPPORTED
-
-#if TD_HAVE_ABSL
-#include <absl/container/flat_hash_map.h>
-#else
-#include <unordered_map>
-#endif
-
-#if TD_WITH_LIBCUCKOO
-#include <third-party/libcuckoo/libcuckoo/cuckoohash_map.hh>
-#endif
-
-#if TD_WITH_JUNCTION
-#include <junction/ConcurrentMap_Grampa.h>
-#include <junction/ConcurrentMap_Leapfrog.h>
-#include <junction/ConcurrentMap_Linear.h>
-#endif
-
-// Non resizable HashMap. Just an example
-template <class KeyT, class ValueT>
-class ArrayHashMap {
- public:
-  explicit ArrayHashMap(std::size_t n) : array_(n) {
-  }
-  static td::string get_name() {
-    return "ArrayHashMap";
-  }
-  KeyT empty_key() const {
-    return KeyT{};
-  }
-
-  void insert(KeyT key, ValueT value) {
-    array_.with_value(key, true, [&](auto &node_value) { node_value.store(value, std::memory_order_release); });
-  }
-  ValueT find(KeyT key, ValueT value) {
-    array_.with_value(key, false, [&](auto &node_value) { value = node_value.load(std::memory_order_acquire); });
-    return value;
-  }
-
- private:
-  td::AtomicHashArray<KeyT, std::atomic<ValueT>> array_;
-};
-
-template <class KeyT, class ValueT>
-class ConcurrentHashMapMutex {
- public:
-  explicit ConcurrentHashMapMutex(std::size_t) {
-  }
-  static td::string get_name() {
-    return "ConcurrentHashMapMutex";
-  }
-  void insert(KeyT key, ValueT value) {
-    auto guard = mutex_.lock();
-    hash_map_.emplace(key, value);
-  }
-  ValueT find(KeyT key, ValueT default_value) {
-    auto guard = mutex_.lock();
-    auto it = hash_map_.find(key);
-    if (it == hash_map_.end()) {
-      return default_value;
-    }
-    return it->second;
-  }
-
- private:
-  td::Mutex mutex_;
-#if TD_HAVE_ABSL
-  absl::flat_hash_map<KeyT, ValueT> hash_map_;
-#else
-  std::unordered_map<KeyT, ValueT, td::Hash<KeyT>> hash_map_;
-#endif
-};
-
-template <class KeyT, class ValueT>
-class ConcurrentHashMapSpinlock {
- public:
-  explicit ConcurrentHashMapSpinlock(size_t) {
-  }
-  static td::string get_name() {
-    return "ConcurrentHashMapSpinlock";
-  }
-  void insert(KeyT key, ValueT value) {
-    auto guard = spinlock_.lock();
-    hash_map_.emplace(key, value);
-  }
-  ValueT find(KeyT key, ValueT default_value) {
-    auto guard = spinlock_.lock();
-    auto it = hash_map_.find(key);
-    if (it == hash_map_.end()) {
-      return default_value;
-    }
-    return it->second;
-  }
-
- private:
-  td::SpinLock spinlock_;
-#if TD_HAVE_ABSL
-  absl::flat_hash_map<KeyT, ValueT> hash_map_;
-#else
-  std::unordered_map<KeyT, ValueT, td::Hash<KeyT>> hash_map_;
-#endif
-};
-
-#if TD_WITH_LIBCUCKOO
-template <class KeyT, class ValueT>
-class ConcurrentHashMapLibcuckoo {
- public:
-  explicit ConcurrentHashMapLibcuckoo(size_t) {
-  }
-  static td::string get_name() {
-    return "ConcurrentHashMapLibcuckoo";
-  }
-  void insert(KeyT key, ValueT value) {
-    hash_map_.insert(key, value);
-  }
-  ValueT find(KeyT key, ValueT default_value) {
-    hash_map_.find(key, default_value);
-    return default_value;
-  }
-
- private:
-  cuckoohash_map<KeyT, ValueT> hash_map_;
-};
-#endif
-
-#if TD_WITH_JUNCTION
-template <class KeyT, class ValueT>
-class ConcurrentHashMapJunction {
- public:
-  explicit ConcurrentHashMapJunction(std::size_t size) : hash_map_() {
-  }
-  static td::string get_name() {
-    return "ConcurrentHashMapJunction";
-  }
-  void insert(KeyT key, ValueT value) {
-    hash_map_.assign(key, value);
-  }
-  ValueT find(KeyT key, ValueT default_value) {
-    return hash_map_.get(key);
-  }
-
-  ConcurrentHashMapJunction(const ConcurrentHashMapJunction &) = delete;
-  ConcurrentHashMapJunction &operator=(const ConcurrentHashMapJunction &) = delete;
-  ConcurrentHashMapJunction(ConcurrentHashMapJunction &&) = delete;
-  ConcurrentHashMapJunction &operator=(ConcurrentHashMapJunction &&) = delete;
-  ~ConcurrentHashMapJunction() {
-    junction::DefaultQSBR.flush();
-  }
-
- private:
-  junction::ConcurrentMap_Leapfrog<KeyT, ValueT> hash_map_;
-};
-#endif
-
-template <class HashMap>
-class HashMapBenchmark final : public td::Benchmark {
-  struct Query {
-    int key;
-    int value;
-  };
-  td::vector<Query> queries;
-  td::unique_ptr<HashMap> hash_map;
-
-  std::size_t threads_n = 16;
-  static constexpr std::size_t MUL = 7273;  //1000000000 + 7;
-  int n_ = 0;
-
- public:
-  explicit HashMapBenchmark(std::size_t threads_n) : threads_n(threads_n) {
-  }
-  td::string get_description() const final {
-    return HashMap::get_name();
-  }
-  void start_up_n(int n) final {
-    n *= static_cast<int>(threads_n);
-    n_ = n;
-    hash_map = td::make_unique<HashMap>(n * 2);
-  }
-
-  void run(int n) final {
-    n = n_;
-    for (int count = 0; count < 1000; count++) {
-      td::vector<td::thread> threads;
-
-      for (std::size_t i = 0; i < threads_n; i++) {
-        std::size_t l = n * i / threads_n;
-        std::size_t r = n * (i + 1) / threads_n;
-        threads.emplace_back([l, r, this] {
-          for (size_t i = l; i < r; i++) {
-            auto x = td::narrow_cast<int>((i + 1) * MUL % n_) + 3;
-            auto y = td::narrow_cast<int>(i + 2);
-            hash_map->insert(x, y);
-          }
-        });
-      }
-      for (auto &thread : threads) {
-        thread.join();
-      }
-    }
-  }
-
-  void tear_down() final {
-    for (int i = 0; i < n_; i++) {
-      auto x = td::narrow_cast<int>((i + 1) * MUL % n_) + 3;
-      auto y = td::narrow_cast<int>(i + 2);
-      ASSERT_EQ(y, hash_map->find(x, -1));
-    }
-    queries.clear();
-    hash_map.reset();
-  }
-};
-
-template <class HashMap>
-static void bench_hash_map() {
-  td::bench(HashMapBenchmark<HashMap>(16));
-  td::bench(HashMapBenchmark<HashMap>(1));
-}
-
-TEST(ConcurrentHashMap, Benchmark) {
-  bench_hash_map<td::ConcurrentHashMap<td::int32, td::int32>>();
-  bench_hash_map<ArrayHashMap<td::int32, td::int32>>();
-  bench_hash_map<ConcurrentHashMapSpinlock<td::int32, td::int32>>();
-  bench_hash_map<ConcurrentHashMapMutex<td::int32, td::int32>>();
-#if TD_WITH_LIBCUCKOO
-  bench_hash_map<ConcurrentHashMapLibcuckoo<td::int32, td::int32>>();
-#endif
-#if TD_WITH_JUNCTION
-  bench_hash_map<ConcurrentHashMapJunction<td::int32, td::int32>>();
-#endif
-}
-
-#endif
diff --git a/third-party/td/td/tdutils/test/Enumerator.cpp b/third-party/td/td/tdutils/test/Enumerator.cpp
deleted file mode 100644
index dd1077ee3f..0000000000
--- a/third-party/td/td/tdutils/test/Enumerator.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/Enumerator.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-
-TEST(Enumerator, simple) {
-  td::Enumerator<td::string> e;
-  auto b = e.add("b");
-  auto a = e.add("a");
-  auto d = e.add("d");
-  auto c = e.add("c");
-  ASSERT_STREQ(e.get(a), "a");
-  ASSERT_STREQ(e.get(b), "b");
-  ASSERT_STREQ(e.get(c), "c");
-  ASSERT_STREQ(e.get(d), "d");
-  ASSERT_EQ(a, e.add("a"));
-  ASSERT_EQ(b, e.add("b"));
-  ASSERT_EQ(c, e.add("c"));
-  ASSERT_EQ(d, e.add("d"));
-}
-
-TEST(Enumerator, add_benchmark) {
-  class EnumeratorAddBenchmark final : public td::Benchmark {
-   public:
-    td::string get_description() const final {
-      return "EnumeratorAdd";
-    }
-
-    void run(int n) final {
-      td::Enumerator<int> enumerator;
-      for (int i = 0; i < n; i++) {
-        enumerator.add(td::Random::fast(1, 10000000));
-      }
-      td::do_not_optimize_away(enumerator.size());
-    }
-  };
-  bench(EnumeratorAddBenchmark());
-}
diff --git a/third-party/td/td/tdutils/test/EpochBasedMemoryReclamation.cpp b/third-party/td/td/tdutils/test/EpochBasedMemoryReclamation.cpp
deleted file mode 100644
index 8c694d7f83..0000000000
--- a/third-party/td/td/tdutils/test/EpochBasedMemoryReclamation.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/EpochBasedMemoryReclamation.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-
-#include <atomic>
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(EpochBaseMemoryReclamation, stress) {
-  struct Node {
-    std::atomic<std::string *> name_{nullptr};
-    char pad[64];
-  };
-
-  int threads_n = 10;
-  std::vector<Node> nodes(threads_n);
-  td::EpochBasedMemoryReclamation<std::string> ebmr(threads_n + 1);
-  auto locker = ebmr.get_locker(threads_n);
-  locker.lock();
-  locker.unlock();
-  std::vector<td::thread> threads(threads_n);
-  int thread_id = 0;
-  for (auto &thread : threads) {
-    thread = td::thread([&, thread_id] {
-      auto locker = ebmr.get_locker(thread_id);
-      locker.lock();
-      for (int i = 0; i < 1000000; i++) {
-        auto &node = nodes[td::Random::fast(0, threads_n - 1)];
-        auto *str = node.name_.load(std::memory_order_acquire);
-        if (str) {
-          CHECK(*str == "one" || *str == "twotwo");
-        }
-        if ((i + 1) % 100 == 0) {
-          locker.retire();
-        }
-        if (td::Random::fast(0, 5) == 0) {
-          auto *new_str = new td::string(td::Random::fast_bool() ? "one" : "twotwo");
-          if (node.name_.compare_exchange_strong(str, new_str, std::memory_order_acq_rel)) {
-            locker.retire(str);
-          } else {
-            delete new_str;
-          }
-        }
-      }
-      locker.retire_sync();
-      locker.unlock();
-    });
-    thread_id++;
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-  LOG(INFO) << "Undeleted pointers: " << ebmr.to_delete_size_unsafe();
-  //CHECK(static_cast<int>(ebmr.to_delete_size_unsafe()) <= threads_n * threads_n);
-  for (int i = 0; i < threads_n; i++) {
-    ebmr.get_locker(i).retire_sync();
-  }
-  CHECK(ebmr.to_delete_size_unsafe() == 0);
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/HashSet.cpp b/third-party/td/td/tdutils/test/HashSet.cpp
deleted file mode 100644
index 8595f39f17..0000000000
--- a/third-party/td/td/tdutils/test/HashSet.cpp
+++ /dev/null
@@ -1,452 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashMapChunks.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tests.h"
-
-#include <algorithm>
-#include <array>
-#include <random>
-#include <unordered_map>
-#include <unordered_set>
-#include <utility>
-
-template <class T>
-static auto extract_kv(const T &reference) {
-  auto expected = td::transform(reference, [](auto &it) { return std::make_pair(it.first, it.second); });
-  std::sort(expected.begin(), expected.end());
-  return expected;
-}
-
-template <class T>
-static auto extract_k(const T &reference) {
-  auto expected = td::transform(reference, [](auto &it) { return it; });
-  std::sort(expected.begin(), expected.end());
-  return expected;
-}
-
-TEST(FlatHashMapChunks, basic) {
-  td::FlatHashMapChunks<int, int> kv;
-  kv[5] = 3;
-  ASSERT_EQ(3, kv[5]);
-  kv[3] = 4;
-  ASSERT_EQ(4, kv[3]);
-}
-
-TEST(FlatHashMap, probing) {
-  auto test = [](int buckets, int elements) {
-    CHECK(buckets >= elements);
-    td::vector<bool> data(buckets, false);
-    std::random_device rnd;
-    std::mt19937 mt(rnd());
-    std::uniform_int_distribution<td::int32> d(0, buckets - 1);
-    for (int i = 0; i < elements; i++) {
-      int pos = d(mt);
-      while (data[pos]) {
-        pos++;
-        if (pos == buckets) {
-          pos = 0;
-        }
-      }
-      data[pos] = true;
-    }
-    int max_chain = 0;
-    int cur_chain = 0;
-    for (auto x : data) {
-      if (x) {
-        cur_chain++;
-        max_chain = td::max(max_chain, cur_chain);
-      } else {
-        cur_chain = 0;
-      }
-    }
-    LOG(INFO) << "Buckets=" << buckets << " elements=" << elements << " max_chain=" << max_chain;
-  };
-  test(8192, static_cast<int>(8192 * 0.8));
-  test(8192, static_cast<int>(8192 * 0.6));
-  test(8192, static_cast<int>(8192 * 0.3));
-}
-
-struct A {
-  int a;
-};
-
-struct AHash {
-  td::uint32 operator()(A a) const {
-    return td::Hash<int>()(a.a);
-  }
-};
-
-static bool operator==(const A &lhs, const A &rhs) {
-  return lhs.a == rhs.a;
-}
-
-TEST(FlatHashSet, init) {
-  td::FlatHashSet<td::Slice, td::SliceHash> s{"1", "22", "333", "4444"};
-  ASSERT_TRUE(s.size() == 4);
-  td::string str("1");
-  ASSERT_TRUE(s.count(str) == 1);
-  ASSERT_TRUE(s.count("1") == 1);
-  ASSERT_TRUE(s.count("22") == 1);
-  ASSERT_TRUE(s.count("333") == 1);
-  ASSERT_TRUE(s.count("4444") == 1);
-  ASSERT_TRUE(s.count("4") == 0);
-  ASSERT_TRUE(s.count("222") == 0);
-  ASSERT_TRUE(s.count("") == 0);
-}
-
-TEST(FlatHashSet, foreach) {
-  td::FlatHashSet<A, AHash> s;
-  for (auto it : s) {
-    LOG(ERROR) << it.a;
-  }
-  s.insert({1});
-  LOG(INFO) << s.begin()->a;
-}
-
-TEST(FlatHashSet, TL) {
-  td::FlatHashSet<int> s;
-  int N = 100000;
-  for (int i = 0; i < 10000000; i++) {
-    s.insert((i + N / 2) % N + 1);
-    s.erase(i % N + 1);
-  }
-}
-
-TEST(FlatHashMap, basic) {
-  {
-    td::FlatHashMap<td::int32, int> map;
-    map[1] = 2;
-    ASSERT_EQ(2, map[1]);
-    ASSERT_EQ(1, map.find(1)->first);
-    ASSERT_EQ(2, map.find(1)->second);
-    // ASSERT_EQ(1, map.find(1)->key());
-    // ASSERT_EQ(2, map.find(1)->value());
-    for (auto &kv : map) {
-      ASSERT_EQ(1, kv.first);
-      ASSERT_EQ(2, kv.second);
-    }
-    map.erase(map.find(1));
-  }
-
-  td::FlatHashMap<td::int32, std::array<td::unique_ptr<td::string>, 10>> x;
-  auto y = std::move(x);
-  x[12];
-  x.erase(x.find(12));
-
-  {
-    td::FlatHashMap<td::int32, td::string> map = {{1, "hello"}, {2, "world"}};
-    ASSERT_EQ("hello", map[1]);
-    ASSERT_EQ("world", map[2]);
-    ASSERT_EQ(2u, map.size());
-    ASSERT_EQ("", map[3]);
-    ASSERT_EQ(3u, map.size());
-  }
-
-  {
-    td::FlatHashMap<td::int32, td::string> map = {{1, "hello"}, {1, "world"}};
-    ASSERT_EQ("hello", map[1]);
-    ASSERT_EQ(1u, map.size());
-  }
-
-  using KV = td::FlatHashMap<td::string, td::string>;
-  using Data = td::vector<std::pair<td::string, td::string>>;
-  auto data = Data{{"a", "b"}, {"c", "d"}};
-  { ASSERT_EQ(Data{}, extract_kv(KV())); }
-
-  {
-    KV kv;
-    for (auto &pair : data) {
-      kv.emplace(pair.first, pair.second);
-    }
-    ASSERT_EQ(data, extract_kv(kv));
-
-    KV moved_kv(std::move(kv));
-    ASSERT_EQ(data, extract_kv(moved_kv));
-    ASSERT_EQ(Data{}, extract_kv(kv));
-    ASSERT_TRUE(kv.empty());
-    kv = std::move(moved_kv);
-    ASSERT_EQ(data, extract_kv(kv));
-
-    KV assign_moved_kv;
-    assign_moved_kv = std::move(kv);
-    ASSERT_EQ(data, extract_kv(assign_moved_kv));
-    ASSERT_EQ(Data{}, extract_kv(kv));
-    ASSERT_TRUE(kv.empty());
-    kv = std::move(assign_moved_kv);
-
-    KV it_copy_kv;
-    for (auto &pair : kv) {
-      it_copy_kv.emplace(pair.first, pair.second);
-    }
-    ASSERT_EQ(data, extract_kv(it_copy_kv));
-  }
-
-  {
-    KV kv;
-    ASSERT_TRUE(kv.empty());
-    ASSERT_EQ(0u, kv.size());
-    for (auto &pair : data) {
-      kv.emplace(pair.first, pair.second);
-    }
-    ASSERT_TRUE(!kv.empty());
-    ASSERT_EQ(2u, kv.size());
-
-    ASSERT_EQ("a", kv.find("a")->first);
-    ASSERT_EQ("b", kv.find("a")->second);
-    kv.find("a")->second = "c";
-    ASSERT_EQ("c", kv.find("a")->second);
-    ASSERT_EQ("c", kv["a"]);
-
-    ASSERT_EQ(0u, kv.count("x"));
-    ASSERT_EQ(1u, kv.count("a"));
-  }
-  {
-    KV kv;
-    kv["d"];
-    ASSERT_EQ((Data{{"d", ""}}), extract_kv(kv));
-    kv.erase(kv.find("d"));
-    ASSERT_EQ(Data{}, extract_kv(kv));
-  }
-}
-
-TEST(FlatHashMap, remove_if_basic) {
-  td::Random::Xorshift128plus rnd(123);
-
-  constexpr int TESTS_N = 1000;
-  constexpr int MAX_TABLE_SIZE = 1000;
-  for (int test_i = 0; test_i < TESTS_N; test_i++) {
-    std::unordered_map<td::uint64, td::uint64, td::Hash<td::uint64>> reference;
-    td::FlatHashMap<td::uint64, td::uint64> table;
-    int N = rnd.fast(1, MAX_TABLE_SIZE);
-    for (int i = 0; i < N; i++) {
-      auto key = rnd();
-      auto value = i;
-      reference[key] = value;
-      table[key] = value;
-    }
-    ASSERT_EQ(extract_kv(reference), extract_kv(table));
-
-    td::vector<std::pair<td::uint64, td::uint64>> kv;
-    td::table_remove_if(table, [&](auto &it) {
-      kv.emplace_back(it.first, it.second);
-      return it.second % 2 == 0;
-    });
-    std::sort(kv.begin(), kv.end());
-    ASSERT_EQ(extract_kv(reference), kv);
-
-    td::table_remove_if(reference, [](auto &it) { return it.second % 2 == 0; });
-    ASSERT_EQ(extract_kv(reference), extract_kv(table));
-  }
-}
-
-static constexpr size_t MAX_TABLE_SIZE = 1000;
-TEST(FlatHashMap, stress_test) {
-  td::Random::Xorshift128plus rnd(123);
-  size_t max_table_size = MAX_TABLE_SIZE;  // dynamic value
-  std::unordered_map<td::uint64, td::uint64, td::Hash<td::uint64>> ref;
-  td::FlatHashMap<td::uint64, td::uint64> tbl;
-
-  auto validate = [&] {
-    ASSERT_EQ(ref.empty(), tbl.empty());
-    ASSERT_EQ(ref.size(), tbl.size());
-    ASSERT_EQ(extract_kv(ref), extract_kv(tbl));
-    for (auto &kv : ref) {
-      auto tbl_it = tbl.find(kv.first);
-      ASSERT_TRUE(tbl_it != tbl.end());
-      ASSERT_EQ(kv.second, tbl_it->second);
-    }
-  };
-
-  td::vector<td::RandomSteps::Step> steps;
-  auto add_step = [&](td::Slice step_name, td::uint32 weight, auto f) {
-    auto g = [&, f = std::move(f)] {
-      //ASSERT_EQ(ref.size(), tbl.size());
-      f();
-      ASSERT_EQ(ref.size(), tbl.size());
-      //validate();
-    };
-    steps.emplace_back(td::RandomSteps::Step{std::move(g), weight});
-  };
-
-  auto gen_key = [&] {
-    auto key = rnd() % 4000 + 1;
-    return key;
-  };
-
-  add_step("Reset hash table", 1, [&] {
-    validate();
-    td::reset_to_empty(ref);
-    td::reset_to_empty(tbl);
-    max_table_size = rnd.fast(1, MAX_TABLE_SIZE);
-  });
-  add_step("Clear hash table", 1, [&] {
-    validate();
-    ref.clear();
-    tbl.clear();
-    max_table_size = rnd.fast(1, MAX_TABLE_SIZE);
-  });
-
-  add_step("Insert random value", 1000, [&] {
-    if (tbl.size() > max_table_size) {
-      return;
-    }
-    auto key = gen_key();
-    auto value = rnd();
-    ref[key] = value;
-    tbl[key] = value;
-    ASSERT_EQ(ref[key], tbl[key]);
-  });
-
-  add_step("Emplace random value", 1000, [&] {
-    if (tbl.size() > max_table_size) {
-      return;
-    }
-    auto key = gen_key();
-    auto value = rnd();
-    auto ref_it = ref.emplace(key, value);
-    auto tbl_it = tbl.emplace(key, value);
-    ASSERT_EQ(ref_it.second, tbl_it.second);
-    ASSERT_EQ(key, tbl_it.first->first);
-  });
-
-  add_step("empty operator[]", 1000, [&] {
-    if (tbl.size() > max_table_size) {
-      return;
-    }
-    auto key = gen_key();
-    ASSERT_EQ(ref[key], tbl[key]);
-  });
-
-  add_step("reserve", 10, [&] { tbl.reserve(static_cast<size_t>(rnd() % max_table_size)); });
-
-  add_step("find", 1000, [&] {
-    auto key = gen_key();
-    auto ref_it = ref.find(key);
-    auto tbl_it = tbl.find(key);
-    ASSERT_EQ(ref_it == ref.end(), tbl_it == tbl.end());
-    if (ref_it != ref.end()) {
-      ASSERT_EQ(ref_it->first, tbl_it->first);
-      ASSERT_EQ(ref_it->second, tbl_it->second);
-    }
-  });
-
-  add_step("find_and_erase", 100, [&] {
-    auto key = gen_key();
-    auto ref_it = ref.find(key);
-    auto tbl_it = tbl.find(key);
-    ASSERT_EQ(ref_it == ref.end(), tbl_it == tbl.end());
-    if (ref_it != ref.end()) {
-      ref.erase(ref_it);
-      tbl.erase(tbl_it);
-    }
-  });
-
-  add_step("remove_if", 5, [&] {
-    auto mul = rnd();
-    auto bit = rnd() % 64;
-    auto condition = [&](auto &it) {
-      return (((it.second * mul) >> bit) & 1) == 0;
-    };
-    td::table_remove_if(tbl, condition);
-    td::table_remove_if(ref, condition);
-  });
-
-  td::RandomSteps runner(std::move(steps));
-  for (size_t i = 0; i < 1000000; i++) {
-    runner.step(rnd);
-  }
-}
-
-TEST(FlatHashSet, stress_test) {
-  td::vector<td::RandomSteps::Step> steps;
-  auto add_step = [&steps](td::Slice, td::uint32 weight, auto f) {
-    steps.emplace_back(td::RandomSteps::Step{std::move(f), weight});
-  };
-
-  td::Random::Xorshift128plus rnd(123);
-  size_t max_table_size = MAX_TABLE_SIZE;  // dynamic value
-  std::unordered_set<td::uint64, td::Hash<td::uint64>> ref;
-  td::FlatHashSet<td::uint64> tbl;
-
-  auto validate = [&] {
-    ASSERT_EQ(ref.empty(), tbl.empty());
-    ASSERT_EQ(ref.size(), tbl.size());
-    ASSERT_EQ(extract_k(ref), extract_k(tbl));
-  };
-  auto gen_key = [&] {
-    auto key = rnd() % 4000 + 1;
-    return key;
-  };
-
-  add_step("Reset hash table", 1, [&] {
-    validate();
-    td::reset_to_empty(ref);
-    td::reset_to_empty(tbl);
-    max_table_size = rnd.fast(1, MAX_TABLE_SIZE);
-  });
-  add_step("Clear hash table", 1, [&] {
-    validate();
-    ref.clear();
-    tbl.clear();
-    max_table_size = rnd.fast(1, MAX_TABLE_SIZE);
-  });
-
-  add_step("Insert random value", 1000, [&] {
-    if (tbl.size() > max_table_size) {
-      return;
-    }
-    auto key = gen_key();
-    ref.insert(key);
-    tbl.insert(key);
-  });
-
-  add_step("reserve", 10, [&] { tbl.reserve(static_cast<size_t>(rnd() % max_table_size)); });
-
-  add_step("find", 1000, [&] {
-    auto key = gen_key();
-    auto ref_it = ref.find(key);
-    auto tbl_it = tbl.find(key);
-    ASSERT_EQ(ref_it == ref.end(), tbl_it == tbl.end());
-    if (ref_it != ref.end()) {
-      ASSERT_EQ(*ref_it, *tbl_it);
-    }
-  });
-
-  add_step("find_and_erase", 100, [&] {
-    auto key = gen_key();
-    auto ref_it = ref.find(key);
-    auto tbl_it = tbl.find(key);
-    ASSERT_EQ(ref_it == ref.end(), tbl_it == tbl.end());
-    if (ref_it != ref.end()) {
-      ref.erase(ref_it);
-      tbl.erase(tbl_it);
-    }
-  });
-
-  add_step("remove_if", 5, [&] {
-    auto mul = rnd();
-    auto bit = rnd() % 64;
-    auto condition = [&](auto &it) {
-      return (((it * mul) >> bit) & 1) == 0;
-    };
-    td::table_remove_if(tbl, condition);
-    td::table_remove_if(ref, condition);
-  });
-
-  td::RandomSteps runner(std::move(steps));
-  for (size_t i = 0; i < 10000000; i++) {
-    runner.step(rnd);
-  }
-}
diff --git a/third-party/td/td/tdutils/test/HazardPointers.cpp b/third-party/td/td/tdutils/test/HazardPointers.cpp
deleted file mode 100644
index 731e73a175..0000000000
--- a/third-party/td/td/tdutils/test/HazardPointers.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/HazardPointers.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tests.h"
-
-#include <atomic>
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(HazardPointers, stress) {
-  struct Node {
-    std::atomic<std::string *> name_{nullptr};
-    char pad[64];
-  };
-  int threads_n = 10;
-  std::vector<Node> nodes(threads_n);
-  td::HazardPointers<std::string> hazard_pointers(threads_n);
-  std::vector<td::thread> threads(threads_n);
-  int thread_id = 0;
-  for (auto &thread : threads) {
-    thread = td::thread([&, thread_id] {
-      std::remove_reference_t<decltype(hazard_pointers)>::Holder holder(hazard_pointers, thread_id, 0);
-      for (int i = 0; i < 1000000; i++) {
-        auto &node = nodes[td::Random::fast(0, threads_n - 1)];
-        auto *str = holder.protect(node.name_);
-        if (str) {
-          CHECK(*str == td::Slice("one") || *str == td::Slice("twotwo"));
-        }
-        holder.clear();
-        if (td::Random::fast(0, 5) == 0) {
-          auto *new_str = new td::string(td::Random::fast_bool() ? "one" : "twotwo");
-          if (node.name_.compare_exchange_strong(str, new_str, std::memory_order_acq_rel)) {
-            hazard_pointers.retire(thread_id, str);
-          } else {
-            delete new_str;
-          }
-        }
-      }
-    });
-    thread_id++;
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-  LOG(INFO) << "Undeleted pointers: " << hazard_pointers.to_delete_size_unsafe();
-  CHECK(static_cast<int>(hazard_pointers.to_delete_size_unsafe()) <= threads_n * threads_n);
-  for (int i = 0; i < threads_n; i++) {
-    hazard_pointers.retire(i);
-  }
-  CHECK(hazard_pointers.to_delete_size_unsafe() == 0);
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/HttpUrl.cpp b/third-party/td/td/tdutils/test/HttpUrl.cpp
deleted file mode 100644
index 1b26c7ec4d..0000000000
--- a/third-party/td/td/tdutils/test/HttpUrl.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/HttpUrl.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-
-#include <utility>
-
-static void test_parse_url(const td::string &url, td::string userinfo, td::string host, bool is_ipv6,
-                           int specified_port, int port) {
-  for (auto query : {"", "/.com", "#", "?t=1"}) {
-    auto http_url = td::parse_url(url + query).move_as_ok();
-    ASSERT_EQ(userinfo, http_url.userinfo_);
-    ASSERT_EQ(host, http_url.host_);
-    ASSERT_EQ(is_ipv6, http_url.is_ipv6_);
-    ASSERT_EQ(specified_port, http_url.specified_port_);
-    ASSERT_EQ(port, http_url.port_);
-  }
-}
-
-static void test_parse_url(const td::string &url, td::Slice error_message) {
-  for (auto query : {"", "/.com", "#", "?t=1"}) {
-    auto error = td::parse_url(url + query).move_as_error();
-    ASSERT_EQ(error_message, error.message());
-  }
-}
-
-TEST(HttpUrl, parse_url) {
-  test_parse_url("http://localhost:8080", "", "localhost", false, 8080, 8080);
-  test_parse_url("http://lOcAlhOsT:8080", "", "localhost", false, 8080, 8080);
-  test_parse_url("http://UsEr:PaSs@lOcAlhOsT:8080", "UsEr:PaSs", "localhost", false, 8080, 8080);
-  test_parse_url("http://example.com", "", "example.com", false, 0, 80);
-  test_parse_url("https://example.com", "", "example.com", false, 0, 443);
-  test_parse_url("https://example.com:65535", "", "example.com", false, 65535, 65535);
-  test_parse_url("https://example.com:00000071", "", "example.com", false, 71, 71);
-  test_parse_url("example.com?://", "", "example.com", false, 0, 80);
-  test_parse_url("example.com/://", "", "example.com", false, 0, 80);
-  test_parse_url("example.com#://", "", "example.com", false, 0, 80);
-  test_parse_url("@example.com#://", "", "example.com", false, 0, 80);
-  test_parse_url("test@example.com#://", "test", "example.com", false, 0, 80);
-  test_parse_url("test:pass@example.com#://", "test:pass", "example.com", false, 0, 80);
-  test_parse_url("te%ffst:pa%8Dss@examp%9Ele.com#://", "te%ffst:pa%8Dss", "examp%9ele.com", false, 0, 80);
-  test_parse_url("http://[2001:db8:85a3:8d3:1319:8a2e:370:7348]", "", "[2001:db8:85a3:8d3:1319:8a2e:370:7348]", true, 0,
-                 80);
-  test_parse_url("https://test@[2001:db8:85a3:8d3:1319:8a2e:370:7348]:443/", "test",
-                 "[2001:db8:85a3:8d3:1319:8a2e:370:7348]", true, 443, 443);
-  test_parse_url("http://[64:ff9b::255.255.255.255]", "", "[64:ff9b::255.255.255.255]", true, 0, 80);
-  test_parse_url("http://255.255.255.255", "", "255.255.255.255", false, 0, 80);
-  test_parse_url("http://255.255.255.com", "", "255.255.255.com", false, 0, 80);
-  test_parse_url("https://exam%00ple.com", "", "exam%00ple.com", false, 0, 443);
-
-  test_parse_url("example.com://", "Unsupported URL protocol");
-  test_parse_url("https://example.com:65536", "Wrong port number specified in the URL");
-  test_parse_url("https://example.com:0", "Wrong port number specified in the URL");
-  test_parse_url("https://example.com:0x1", "Wrong port number specified in the URL");
-  test_parse_url("https://example.com:", "Wrong port number specified in the URL");
-  test_parse_url("https://example.com:-1", "Wrong port number specified in the URL");
-  test_parse_url("example.com@://", "Wrong port number specified in the URL");
-  test_parse_url("example.com@:1//", "URL host is empty");
-  test_parse_url("example.com@.:1//", "Host is invalid");
-  test_parse_url("exam%0gple.com", "Wrong percent-encoded symbol in URL host");
-  test_parse_url("a%g0b@example.com", "Wrong percent-encoded symbol in URL userinfo");
-
-  for (int c = 1; c <= 255; c++) {
-    if (c == '%') {
-      continue;
-    }
-    auto ch = static_cast<char>(c);
-    if (td::is_alnum(ch) || c >= 128 || td::string(".-_!$,~*\'();&+=").find(ch) != td::string::npos) {
-      // allowed character
-      test_parse_url(PSTRING() << ch << "a@b" << ch, td::string(1, ch) + "a", "b" + td::string(1, td::to_lower(ch)),
-                     false, 0, 80);
-    } else if (c == ':') {
-      // allowed in userinfo character
-      test_parse_url(PSTRING() << ch << "a@b" << ch << 1, td::string(1, ch) + "a", "b", false, 1, 1);
-      test_parse_url(PSTRING() << ch << "a@b" << ch, "Wrong port number specified in the URL");
-      test_parse_url(PSTRING() << ch << "a@b", td::string(1, ch) + "a", "b", false, 0, 80);
-    } else if (c == '#' || c == '?' || c == '/') {
-      // special disallowed character
-      test_parse_url(PSTRING() << ch << "a@b" << ch, "URL host is empty");
-    } else if (c == '@') {
-      // special disallowed character
-      test_parse_url(PSTRING() << ch << "a@b" << ch, "URL host is empty");
-      test_parse_url(PSTRING() << ch << "a@b" << ch << '1', "Disallowed character in URL userinfo");
-    } else {
-      // generic disallowed character
-      test_parse_url(PSTRING() << ch << "a@b" << ch, "Disallowed character in URL host");
-      test_parse_url(PSTRING() << "a@b" << ch, "Disallowed character in URL host");
-      test_parse_url(PSTRING() << ch << "a@b", "Disallowed character in URL userinfo");
-    }
-  }
-}
-
-static void test_get_url_query_file_name(const char *prefix, const char *suffix, const char *file_name) {
-  auto path = td::string(prefix) + td::string(file_name) + td::string(suffix);
-  ASSERT_STREQ(file_name, td::get_url_query_file_name(path));
-  ASSERT_STREQ(file_name, td::get_url_file_name("http://telegram.org" + path));
-  ASSERT_STREQ(file_name, td::get_url_file_name("http://telegram.org:80" + path));
-  ASSERT_STREQ(file_name, td::get_url_file_name("telegram.org" + path));
-}
-
-TEST(HttpUrl, get_url_query_file_name) {
-  for (auto suffix : {"?t=1#test", "#test?t=1", "#?t=1", "?t=1#", "#test", "?t=1", "#", "?", ""}) {
-    test_get_url_query_file_name("", suffix, "");
-    test_get_url_query_file_name("/", suffix, "");
-    test_get_url_query_file_name("/a/adasd/", suffix, "");
-    test_get_url_query_file_name("/a/lklrjetn/", suffix, "adasd.asdas");
-    test_get_url_query_file_name("/", suffix, "a123asadas");
-    test_get_url_query_file_name("/", suffix, "\\a\\1\\2\\3\\a\\s\\a\\das");
-  }
-}
-
-static void test_parse_url_query(const td::string &query, const td::vector<td::string> &path,
-                                 const td::vector<std::pair<td::string, td::string>> &args) {
-  for (auto hash : {"", "#", "#?t=1", "#t=1&a=b"}) {
-    auto url_query = td::parse_url_query(query + hash);
-    ASSERT_EQ(path, url_query.path_);
-    ASSERT_EQ(args, url_query.args_);
-  }
-}
-
-TEST(HttpUrl, parse_url_query) {
-  test_parse_url_query("", {}, {});
-  test_parse_url_query("a", {"a"}, {});
-  test_parse_url_query("/", {}, {});
-  test_parse_url_query("//", {}, {});
-  test_parse_url_query("///?a", {}, {{"a", ""}});
-  test_parse_url_query("/a/b/c/", {"a", "b", "c"}, {});
-  test_parse_url_query("/a/b/?c/", {td::string("a"), td::string("b")}, {{"c/", ""}});
-  test_parse_url_query("?", {}, {});
-  test_parse_url_query("???", {}, {{"??", ""}});
-  test_parse_url_query("?a=b=c=d?e=f=g=h&x=y=z?d=3&", {}, {{"a", "b=c=d?e=f=g=h"}, {"x", "y=z?d=3"}});
-  test_parse_url_query("c?&&&a=b", {"c"}, {{"a", "b"}});
-  test_parse_url_query("c?&&&=b", {"c"}, {});
-}
diff --git a/third-party/td/td/tdutils/test/List.cpp b/third-party/td/td/tdutils/test/List.cpp
deleted file mode 100644
index 3d5f4bbb73..0000000000
--- a/third-party/td/td/tdutils/test/List.cpp
+++ /dev/null
@@ -1,169 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/List.h"
-#include "td/utils/MovableValue.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-#include "td/utils/TsList.h"
-
-#include <atomic>
-#include <mutex>
-#include <set>
-#include <utility>
-
-struct ListData {
-  td::MovableValue<td::uint64> value_;
-  td::MovableValue<bool> in_list_;
-
-  ListData() = default;
-  ListData(td::uint64 value, bool in_list) : value_(value), in_list_(in_list) {
-  }
-};
-
-struct TrieNode final : public td::ListNode {
-  TrieNode() = default;
-  explicit TrieNode(ListData data) : data_(std::move(data)) {
-  }
-
-  ListData data_;
-};
-
-static ListData &get_data(TrieNode &node) {
-  return node.data_;
-}
-
-static ListData &get_data(td::TsListNode<ListData> &node) {
-  return node.get_data_unsafe();
-}
-
-static std::unique_lock<std::mutex> lock(td::ListNode &node) {
-  return {};
-}
-
-static std::unique_lock<std::mutex> lock(td::TsListNode<ListData> &node) {
-  return node.lock();
-}
-
-template <class ListNodeT, class ListRootT, class NodeT>
-static void do_run_list_test(ListRootT &root, std::atomic<td::uint64> &id) {
-  td::vector<NodeT> nodes;
-
-  td::Random::Xorshift128plus rnd(123);
-
-  auto next_id = [&] {
-    return ++id;
-  };
-  auto add_node = [&] {
-    if (nodes.size() >= 20) {
-      return;
-    }
-    nodes.push_back(NodeT({next_id(), false}));
-  };
-  auto pop_node = [&] {
-    if (nodes.empty()) {
-      return;
-    }
-    nodes.pop_back();
-  };
-  auto random_node_index = [&] {
-    CHECK(!nodes.empty());
-    return rnd.fast(0, static_cast<int>(nodes.size()) - 1);
-  };
-
-  auto link_node = [&] {
-    if (nodes.empty()) {
-      return;
-    }
-    auto i = random_node_index();
-    nodes[i].remove();
-    get_data(nodes[i]) = ListData(next_id(), true);
-    root.put(&nodes[i]);
-  };
-  auto unlink_node = [&] {
-    if (nodes.empty()) {
-      return;
-    }
-    auto i = random_node_index();
-    nodes[i].remove();
-    get_data(nodes[i]).in_list_ = false;
-  };
-  auto swap_nodes = [&] {
-    if (nodes.empty()) {
-      return;
-    }
-    auto i = random_node_index();
-    auto j = random_node_index();
-    std::swap(nodes[i], nodes[j]);
-  };
-  auto set_node = [&] {
-    if (nodes.empty()) {
-      return;
-    }
-    auto i = random_node_index();
-    auto j = random_node_index();
-    nodes[i] = std::move(nodes[j]);
-  };
-  auto validate = [&] {
-    std::multiset<td::uint64> in_list;
-    std::multiset<td::uint64> not_in_list;
-    for (auto &node : nodes) {
-      if (get_data(node).in_list_.get()) {
-        in_list.insert(get_data(node).value_.get());
-      } else {
-        not_in_list.insert(get_data(node).value_.get());
-      }
-    }
-    auto guard = lock(root);
-    for (auto *begin = root.begin(), *end = root.end(); begin != end; begin = begin->get_next()) {
-      auto &data = get_data(*static_cast<NodeT *>(begin));
-      CHECK(data.in_list_.get());
-      CHECK(data.value_.get() != 0);
-      auto it = in_list.find(data.value_.get());
-      if (it != in_list.end()) {
-        in_list.erase(it);
-      } else {
-        ASSERT_EQ(0u, not_in_list.count(data.value_.get()));
-      }
-    }
-    ASSERT_EQ(0u, in_list.size());
-  };
-  td::RandomSteps steps(
-      {{add_node, 3}, {pop_node, 1}, {unlink_node, 1}, {link_node, 3}, {swap_nodes, 1}, {set_node, 1}, {validate, 1}});
-  for (int i = 0; i < 10000; i++) {
-    steps.step(rnd);
-  }
-}
-
-TEST(Misc, List) {
-  td::ListNode root;
-  std::atomic<td::uint64> id{0};
-  for (std::size_t i = 0; i < 4; i++) {
-    do_run_list_test<td::ListNode, td::ListNode, TrieNode>(root, id);
-  }
-}
-
-TEST(Misc, TsList) {
-  td::TsList<ListData> root;
-  std::atomic<td::uint64> id{0};
-  for (std::size_t i = 0; i < 4; i++) {
-    do_run_list_test<td::TsListNode<ListData>, td::TsList<ListData>, td::TsListNode<ListData>>(root, id);
-  }
-}
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(Misc, TsListConcurrent) {
-  td::TsList<ListData> root;
-  td::vector<td::thread> threads;
-  std::atomic<td::uint64> id{0};
-  for (std::size_t i = 0; i < 4; i++) {
-    threads.emplace_back(
-        [&] { do_run_list_test<td::TsListNode<ListData>, td::TsList<ListData>, td::TsListNode<ListData>>(root, id); });
-  }
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/MpmcQueue.cpp b/third-party/td/td/tdutils/test/MpmcQueue.cpp
deleted file mode 100644
index fdb3099b0a..0000000000
--- a/third-party/td/td/tdutils/test/MpmcQueue.cpp
+++ /dev/null
@@ -1,207 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/MpmcQueue.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/tests.h"
-
-#include <algorithm>
-#include <tuple>
-
-TEST(OneValue, simple) {
-  {
-    std::string x{"hello"};
-    td::OneValue<std::string> value;
-    auto status = value.set_value(x);
-    CHECK(status);
-    CHECK(x.empty());
-    status = value.get_value(x);
-    CHECK(status);
-    CHECK(x == "hello");
-  }
-  {
-    td::OneValue<std::string> value;
-    std::string x;
-    auto status = value.get_value(x);
-    CHECK(!status);
-    CHECK(x.empty());
-    std::string y{"hello"};
-    status = value.set_value(y);
-    CHECK(!status);
-    CHECK(y == "hello");
-  }
-}
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(OneValue, stress) {
-  td::Stage run;
-  td::Stage check;
-
-  std::string from;
-  bool set_status;
-
-  std::string to;
-  bool get_status;
-  std::vector<td::thread> threads;
-  td::OneValue<std::string> value;
-  for (size_t i = 0; i < 2; i++) {
-    threads.emplace_back([&, id = i] {
-      for (td::uint64 round = 1; round < 100000; round++) {
-        if (id == 0) {
-          value.reset();
-          to = "";
-          from = "";
-        }
-        run.wait(round * 2);
-        if (id == 0) {
-          from = "hello";
-          set_status = value.set_value(from);
-        } else {
-          get_status = value.get_value(to);
-        }
-        check.wait(round * 2);
-        if (id == 0) {
-          if (set_status) {
-            CHECK(get_status);
-            CHECK(from.empty());
-            LOG_CHECK(to == "hello") << to;
-          } else {
-            CHECK(!get_status);
-            CHECK(from == "hello");
-            CHECK(to.empty());
-          }
-        }
-      }
-    });
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-}
-#endif
-
-TEST(MpmcQueueBlock, simple) {
-  // Test doesn't work now and it is ok, try_pop, logic changed
-  /*
-  td::MpmcQueueBlock<std::string> block(2);
-  std::string x = "hello";
-  using PushStatus = td::MpmcQueueBlock<std::string>::PushStatus;
-  using PopStatus = td::MpmcQueueBlock<std::string>::PopStatus;
-  auto push_status = block.push(x);
-  CHECK(push_status == PushStatus::Ok);
-  CHECK(x.empty());
-  auto pop_status = block.pop(x);
-  CHECK(pop_status == PopStatus::Ok);
-  CHECK(x == "hello");
-  pop_status = block.try_pop(x);
-  CHECK(pop_status == PopStatus::Empty);
-  x = "hello";
-  push_status = block.push(x);
-  CHECK(push_status == PushStatus::Ok);
-  x = "hello";
-  push_status = block.push(x);
-  CHECK(push_status == PushStatus::Closed);
-  CHECK(x == "hello");
-  x = "";
-  pop_status = block.try_pop(x);
-  CHECK(pop_status == PopStatus::Ok);
-  pop_status = block.try_pop(x);
-  CHECK(pop_status == PopStatus::Closed);
-  */
-}
-
-TEST(MpmcQueue, simple) {
-  td::MpmcQueue<int> q(2, 1);
-  for (int t = 0; t < 2; t++) {
-    for (int i = 0; i < 100; i++) {
-      q.push(i, 0);
-    }
-    for (int i = 0; i < 100; i++) {
-      int x = q.pop(0);
-      LOG_CHECK(x == i) << x << " expected " << i;
-    }
-  }
-}
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(MpmcQueue, multi_thread) {
-  size_t n = 10;
-  size_t m = 10;
-  struct Data {
-    size_t from{0};
-    size_t value{0};
-  };
-  struct ThreadData {
-    std::vector<Data> v;
-    char pad[64];
-  };
-  td::MpmcQueue<Data> q(1024, n + m + 1);
-  std::vector<td::thread> n_threads(n);
-  std::vector<td::thread> m_threads(m);
-  std::vector<ThreadData> thread_data(m);
-  size_t thread_id = 0;
-  for (auto &thread : m_threads) {
-    thread = td::thread([&, thread_id] {
-      while (true) {
-        auto data = q.pop(thread_id);
-        if (data.value == 0) {
-          return;
-        }
-        thread_data[thread_id].v.push_back(data);
-      }
-    });
-    thread_id++;
-  }
-  size_t qn = 100000;
-  for (auto &thread : n_threads) {
-    thread = td::thread([&, thread_id] {
-      for (size_t i = 0; i < qn; i++) {
-        Data data;
-        data.from = thread_id - m;
-        data.value = i + 1;
-        q.push(data, thread_id);
-      }
-    });
-    thread_id++;
-  }
-  for (auto &thread : n_threads) {
-    thread.join();
-  }
-  for (size_t i = 0; i < m; i++) {
-    Data data;
-    data.from = 0;
-    data.value = 0;
-    q.push(data, thread_id);
-  }
-  for (auto &thread : m_threads) {
-    thread.join();
-  }
-  std::vector<Data> all;
-  for (size_t i = 0; i < m; i++) {
-    std::vector<size_t> from(n, 0);
-    for (auto &data : thread_data[i].v) {
-      all.push_back(data);
-      CHECK(data.value > from[data.from]);
-      from[data.from] = data.value;
-    }
-  }
-  LOG_CHECK(all.size() == n * qn) << all.size();
-  std::sort(all.begin(), all.end(),
-            [](const auto &a, const auto &b) { return std::tie(a.from, a.value) < std::tie(b.from, b.value); });
-  for (size_t i = 0; i < n * qn; i++) {
-    CHECK(all[i].from == i / qn);
-    CHECK(all[i].value == i % qn + 1);
-  }
-  LOG(INFO) << "Undeleted pointers: " << q.hazard_pointers_to_delele_size_unsafe();
-  CHECK(q.hazard_pointers_to_delele_size_unsafe() <= (n + m + 1) * (n + m + 1));
-  for (size_t id = 0; id < n + m + 1; id++) {
-    q.gc(id);
-  }
-  LOG_CHECK(q.hazard_pointers_to_delele_size_unsafe() == 0) << q.hazard_pointers_to_delele_size_unsafe();
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/MpmcWaiter.cpp b/third-party/td/td/tdutils/test/MpmcWaiter.cpp
deleted file mode 100644
index 2215782704..0000000000
--- a/third-party/td/td/tdutils/test/MpmcWaiter.cpp
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/MpmcWaiter.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-
-#include <atomic>
-
-#if !TD_THREAD_UNSUPPORTED
-template <class W>
-static void test_waiter_stress_one_one() {
-  td::Stage run;
-  td::Stage check;
-
-  std::vector<td::thread> threads;
-  std::atomic<size_t> value{0};
-  size_t write_cnt = 10;
-  td::unique_ptr<W> waiter;
-  size_t threads_n = 2;
-  for (size_t i = 0; i < threads_n; i++) {
-    threads.push_back(td::thread([&, id = static_cast<td::uint32>(i)] {
-      for (td::uint64 round = 1; round < 100000; round++) {
-        if (id == 0) {
-          value = 0;
-          waiter = td::make_unique<W>();
-          write_cnt = td::Random::fast(1, 10);
-        }
-        run.wait(round * threads_n);
-        if (id == 1) {
-          for (size_t i = 0; i < write_cnt; i++) {
-            value.store(i + 1, std::memory_order_relaxed);
-            waiter->notify();
-          }
-        } else {
-          typename W::Slot slot(id);
-          for (size_t i = 1; i <= write_cnt; i++) {
-            while (true) {
-              auto x = value.load(std::memory_order_relaxed);
-              if (x >= i) {
-                break;
-              }
-              waiter->wait(slot);
-            }
-            waiter->stop_wait(slot);
-          }
-          waiter->stop_wait(slot);
-        }
-        check.wait(round * threads_n);
-      }
-    }));
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-}
-
-TEST(MpmcEagerWaiter, stress_one_one) {
-  test_waiter_stress_one_one<td::MpmcEagerWaiter>();
-}
-
-TEST(MpmcSleepyWaiter, stress_one_one) {
-  return;  // the test hangs sometimes; run with --filter MpmcSleepyWaiter_stress_one_one --stress to reproduce
-  test_waiter_stress_one_one<td::MpmcSleepyWaiter>();
-}
-
-template <class W>
-static void test_waiter_stress() {
-  td::Stage run;
-  td::Stage check;
-
-  std::vector<td::thread> threads;
-  size_t write_n;
-  size_t read_n;
-  std::atomic<size_t> write_pos{0};
-  std::atomic<size_t> read_pos{0};
-  size_t end_pos;
-  size_t write_cnt;
-  size_t threads_n = 20;
-  td::unique_ptr<W> waiter;
-  for (size_t i = 0; i < threads_n; i++) {
-    threads.push_back(td::thread([&, id = static_cast<td::uint32>(i)] {
-      for (td::uint64 round = 1; round < 1000; round++) {
-        if (id == 0) {
-          write_n = td::Random::fast(1, 10);
-          read_n = td::Random::fast(1, 10);
-          write_cnt = td::Random::fast(1, 50);
-          end_pos = write_n * write_cnt;
-          write_pos = 0;
-          read_pos = 0;
-          waiter = td::make_unique<W>();
-        }
-        run.wait(round * threads_n);
-        if (id <= write_n) {
-          for (size_t i = 0; i < write_cnt; i++) {
-            if (td::Random::fast(0, 20) == 0) {
-              td::usleep_for(td::Random::fast(1, 300));
-            }
-            write_pos.fetch_add(1, std::memory_order_relaxed);
-            waiter->notify();
-          }
-        } else if (id > 10 && id - 10 <= read_n) {
-          typename W::Slot slot(id);
-          while (true) {
-            auto x = read_pos.load(std::memory_order_relaxed);
-            if (x == end_pos) {
-              waiter->stop_wait(slot);
-              break;
-            }
-            if (x == write_pos.load(std::memory_order_relaxed)) {
-              waiter->wait(slot);
-              continue;
-            }
-            waiter->stop_wait(slot);
-            read_pos.compare_exchange_strong(x, x + 1, std::memory_order_relaxed);
-          }
-        }
-        check.wait(round * threads_n);
-        if (id == 0) {
-          waiter->close();
-        }
-      }
-    }));
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-}
-
-TEST(MpmcEagerWaiter, stress_multi) {
-  test_waiter_stress<td::MpmcEagerWaiter>();
-}
-
-TEST(MpmcSleepyWaiter, stress_multi) {
-  test_waiter_stress<td::MpmcSleepyWaiter>();
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/MpscLinkQueue.cpp b/third-party/td/td/tdutils/test/MpscLinkQueue.cpp
deleted file mode 100644
index 811397e479..0000000000
--- a/third-party/td/td/tdutils/test/MpscLinkQueue.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/MpscLinkQueue.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/tests.h"
-
-class NodeX final : public td::MpscLinkQueueImpl::Node {
- public:
-  explicit NodeX(int value) : value_(value) {
-  }
-  td::MpscLinkQueueImpl::Node *to_mpsc_link_queue_node() {
-    return static_cast<td::MpscLinkQueueImpl::Node *>(this);
-  }
-  static NodeX *from_mpsc_link_queue_node(td::MpscLinkQueueImpl::Node *node) {
-    return static_cast<NodeX *>(node);
-  }
-  int value() {
-    return value_;
-  }
-
- private:
-  int value_;
-};
-using QueueNode = td::MpscLinkQueueUniquePtrNode<NodeX>;
-
-static QueueNode create_node(int value) {
-  return QueueNode(td::make_unique<NodeX>(value));
-}
-
-TEST(MpscLinkQueue, one_thread) {
-  td::MpscLinkQueue<QueueNode> queue;
-
-  {
-    queue.push(create_node(1));
-    queue.push(create_node(2));
-    queue.push(create_node(3));
-    td::MpscLinkQueue<QueueNode>::Reader reader;
-    queue.pop_all(reader);
-    queue.push(create_node(4));
-    queue.pop_all(reader);
-    std::vector<int> v;
-    while (auto node = reader.read()) {
-      v.push_back(node.value().value());
-    }
-    LOG_CHECK((v == std::vector<int>{1, 2, 3, 4})) << v;
-
-    v.clear();
-    queue.push(create_node(5));
-    queue.pop_all(reader);
-    while (auto node = reader.read()) {
-      v.push_back(node.value().value());
-    }
-    LOG_CHECK((v == std::vector<int>{5})) << v;
-  }
-
-  {
-    queue.push_unsafe(create_node(3));
-    queue.push_unsafe(create_node(2));
-    queue.push_unsafe(create_node(1));
-    queue.push_unsafe(create_node(0));
-    td::MpscLinkQueue<QueueNode>::Reader reader;
-    queue.pop_all_unsafe(reader);
-    std::vector<int> v;
-    while (auto node = reader.read()) {
-      v.push_back(node.value().value());
-    }
-    LOG_CHECK((v == std::vector<int>{3, 2, 1, 0})) << v;
-  }
-}
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(MpscLinkQueue, multi_thread) {
-  td::MpscLinkQueue<QueueNode> queue;
-  int threads_n = 10;
-  int queries_n = 1000000;
-  std::vector<int> next_value(threads_n);
-  std::vector<td::thread> threads(threads_n);
-  int thread_i = 0;
-  for (auto &thread : threads) {
-    thread = td::thread([&, id = thread_i] {
-      for (int i = 0; i < queries_n; i++) {
-        queue.push(create_node(i * threads_n + id));
-      }
-    });
-    thread_i++;
-  }
-
-  int active_threads = threads_n;
-
-  td::MpscLinkQueue<QueueNode>::Reader reader;
-  while (active_threads) {
-    queue.pop_all(reader);
-    while (auto value = reader.read()) {
-      auto x = value.value().value();
-      auto thread_id = x % threads_n;
-      x /= threads_n;
-      CHECK(next_value[thread_id] == x);
-      next_value[thread_id]++;
-      if (x + 1 == queries_n) {
-        active_threads--;
-      }
-    }
-  }
-
-  for (auto &thread : threads) {
-    thread.join();
-  }
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/OptionParser.cpp b/third-party/td/td/tdutils/test/OptionParser.cpp
deleted file mode 100644
index 4ff31a5074..0000000000
--- a/third-party/td/td/tdutils/test/OptionParser.cpp
+++ /dev/null
@@ -1,82 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/OptionParser.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tests.h"
-
-TEST(OptionParser, run) {
-  td::OptionParser options;
-  options.set_description("test description");
-
-  td::string exename = "exename";
-  td::vector<td::string> args;
-  auto run_option_parser = [&](td::string command_line) {
-    args = td::full_split(std::move(command_line), ' ');
-    td::vector<char *> argv;
-    argv.push_back(&exename[0]);
-    for (auto &arg : args) {
-      argv.push_back(&arg[0]);
-    }
-    return options.run_impl(static_cast<int>(argv.size()), &argv[0], -1);
-  };
-
-  td::uint64 chosen_options = 0;
-  td::vector<td::string> chosen_parameters;
-  auto test_success = [&](td::string command_line, td::uint64 expected_options,
-                          const td::vector<td::string> &expected_parameters,
-                          const td::vector<td::string> &expected_result) {
-    chosen_options = 0;
-    chosen_parameters.clear();
-    auto result = run_option_parser(std::move(command_line));
-    ASSERT_TRUE(result.is_ok());
-    ASSERT_EQ(expected_options, chosen_options);
-    ASSERT_EQ(expected_parameters, chosen_parameters);
-    ASSERT_EQ(expected_result.size(), result.ok().size());
-    for (size_t i = 0; i < expected_result.size(); i++) {
-      ASSERT_STREQ(expected_result[i], td::string(result.ok()[i]));
-    }
-  };
-  auto test_fail = [&](td::string command_line) {
-    auto result = run_option_parser(std::move(command_line));
-    ASSERT_TRUE(result.is_error());
-  };
-
-  options.add_option('q', "", "", [&] { chosen_options += 1; });
-  options.add_option('\0', "http-port2", "", [&] { chosen_options += 10; });
-  options.add_option('p', "http-port", "", [&](td::Slice parameter) {
-    chosen_options += 100;
-    chosen_parameters.push_back(parameter.str());
-  });
-  options.add_option('v', "test", "", [&] { chosen_options += 1000; });
-
-  test_fail("-http-port2");
-  test_success("-", 0, {}, {"-"});
-  test_fail("--http-port");
-  test_fail("--http-port3");
-  test_fail("--http-por");
-  test_fail("--http-port2=1");
-  test_fail("--q");
-  test_fail("-qvp");
-  test_fail("-p");
-  test_fail("-u");
-  test_success("-q", 1, {}, {});
-  test_success("-vvvvvvvvvv", 10000, {}, {});
-  test_success("-qpv", 101, {"v"}, {});
-  test_success("-qp -v", 101, {"-v"}, {});
-  test_success("-qp --http-port2", 101, {"--http-port2"}, {});
-  test_success("-qp -- -v", 1101, {"--"}, {});
-  test_success("-qvqvpqv", 2102, {"qv"}, {});
-  test_success("aba --http-port2 caba --http-port2 dabacaba", 20, {}, {"aba", "caba", "dabacaba"});
-  test_success("das -pqwerty -- -v asd --http-port", 100, {"qwerty"}, {"das", "-v", "asd", "--http-port"});
-  test_success("-p option --http-port option2 --http-port=option3 --http-port=", 400,
-               {"option", "option2", "option3", ""}, {});
-  test_success("", 0, {}, {});
-  test_success("a", 0, {}, {"a"});
-  test_success("", 0, {}, {});
-}
diff --git a/third-party/td/td/tdutils/test/OrderedEventsProcessor.cpp b/third-party/td/td/tdutils/test/OrderedEventsProcessor.cpp
deleted file mode 100644
index 166b7442c7..0000000000
--- a/third-party/td/td/tdutils/test/OrderedEventsProcessor.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/OrderedEventsProcessor.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-
-#include <algorithm>
-#include <utility>
-#include <vector>
-
-TEST(OrderedEventsProcessor, random) {
-  int d = 5001;
-  int n = 1000000;
-  int offset = 1000000;
-  std::vector<std::pair<int, int>> v;
-  for (int i = 0; i < n; i++) {
-    auto shift = td::Random::fast_bool() ? td::Random::fast(0, d) : td::Random::fast(0, 1) * d;
-    v.emplace_back(i + shift, i + offset);
-  }
-  std::sort(v.begin(), v.end());
-
-  td::OrderedEventsProcessor<int> processor(offset);
-  int next_pos = offset;
-  for (auto p : v) {
-    int seq_no = p.second;
-    processor.add(seq_no, seq_no, [&](auto seq_no, int x) {
-      ASSERT_EQ(x, next_pos);
-      next_pos++;
-    });
-  }
-  ASSERT_EQ(next_pos, n + offset);
-}
diff --git a/third-party/td/td/tdutils/test/SharedObjectPool.cpp b/third-party/td/td/tdutils/test/SharedObjectPool.cpp
deleted file mode 100644
index 652b0aa5db..0000000000
--- a/third-party/td/td/tdutils/test/SharedObjectPool.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/SharedObjectPool.h"
-#include "td/utils/tests.h"
-
-#include <memory>
-
-TEST(AtomicRefCnt, simple) {
-  td::detail::AtomicRefCnt cnt{0};
-  cnt.inc();
-  cnt.inc();
-  CHECK(!cnt.dec());
-  cnt.inc();
-  CHECK(!cnt.dec());
-  CHECK(cnt.dec());
-  cnt.inc();
-  CHECK(cnt.dec());
-}
-
-template <class T, class D>
-using Ptr = td::detail::SharedPtr<T, D>;
-class Deleter {
- public:
-  template <class T>
-  void operator()(T *t) {
-    std::default_delete<T>()(t);
-    was_delete() = true;
-  }
-  static bool &was_delete() {
-    static bool flag = false;
-    return flag;
-  }
-};
-
-TEST(SharedPtr, simple) {
-  CHECK(!Deleter::was_delete());
-  Ptr<std::string, Deleter> ptr = Ptr<std::string, Deleter>::create("hello");
-  auto ptr2 = ptr;
-  CHECK(*ptr == "hello");
-  CHECK(*ptr2 == "hello");
-  ptr.reset();
-  CHECK(*ptr2 == "hello");
-  CHECK(ptr.empty());
-  Ptr<std::string, Deleter> ptr3 = std::move(ptr2);
-  CHECK(ptr2.empty());
-  CHECK(*ptr3 == "hello");
-  ptr = ptr3;
-  CHECK(*ptr3 == "hello");
-  ptr3.reset();
-  CHECK(*ptr == "hello");
-  ptr2 = std::move(ptr);
-  CHECK(ptr.empty());
-  CHECK(*ptr2 == "hello");
-#if TD_CLANG
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wunknown-pragmas"
-#pragma clang diagnostic ignored "-Wunknown-warning-option"
-#pragma clang diagnostic ignored "-Wself-assign-overloaded"
-#endif
-  ptr2 = ptr2;
-#if TD_CLANG
-#pragma clang diagnostic pop
-#endif
-  CHECK(*ptr2 == "hello");
-  CHECK(!Deleter::was_delete());
-  ptr2.reset();
-  CHECK(Deleter::was_delete());
-  CHECK(ptr2.empty());
-}
-
-TEST(SharedObjectPool, simple) {
-  class Node {
-   public:
-    Node() {
-      cnt()++;
-    };
-    ~Node() {
-      cnt()--;
-    }
-    static int &cnt() {
-      static int cnt_ = 0;
-      return cnt_;
-    }
-  };
-  {
-    td::SharedObjectPool<Node> pool;
-    { auto ptr1 = pool.alloc(); }
-    { auto ptr2 = pool.alloc(); }
-    { auto ptr3 = pool.alloc(); }
-    { auto ptr4 = pool.alloc(); }
-    { auto ptr5 = pool.alloc(); }
-    CHECK(Node::cnt() == 0);
-    CHECK(pool.total_size() == 1);
-    CHECK(pool.calc_free_size() == 1);
-    { auto ptr6 = pool.alloc(), ptr7 = pool.alloc(), ptr8 = pool.alloc(); }
-    CHECK(pool.total_size() == 3);
-    CHECK(pool.calc_free_size() == 3);
-  }
-  CHECK(Node::cnt() == 0);
-}
diff --git a/third-party/td/td/tdutils/test/SharedSlice.cpp b/third-party/td/td/tdutils/test/SharedSlice.cpp
deleted file mode 100644
index 5f44a87c5e..0000000000
--- a/third-party/td/td/tdutils/test/SharedSlice.cpp
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/tests.h"
-
-char disable_linker_warning_about_empty_file_tdutils_test_shared_slice_cpp TD_UNUSED;
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(SharedSlice, Hands) {
-  {
-    td::SharedSlice h("hello");
-    ASSERT_EQ("hello", h.as_slice());
-    // auto g = h; // CE
-    auto g = h.clone();
-    ASSERT_EQ("hello", h.as_slice());
-    ASSERT_EQ("hello", g.as_slice());
-  }
-
-  {
-    td::SharedSlice h("hello");
-    td::UniqueSharedSlice g(std::move(h));
-    ASSERT_EQ("", h.as_slice());
-    ASSERT_EQ("hello", g.as_slice());
-  }
-  {
-    td::SharedSlice h("hello");
-    td::SharedSlice t = h.clone();
-    td::UniqueSharedSlice g(std::move(h));
-    ASSERT_EQ("", h.as_slice());
-    ASSERT_EQ("hello", g.as_slice());
-    ASSERT_EQ("hello", t.as_slice());
-  }
-
-  {
-    td::UniqueSharedSlice g(5);
-    g.as_mutable_slice().copy_from("hello");
-    td::SharedSlice h(std::move(g));
-    ASSERT_EQ("hello", h);
-    ASSERT_EQ("", g);
-  }
-
-  {
-    td::UniqueSlice h("hello");
-    td::UniqueSlice g(std::move(h));
-    ASSERT_EQ("", h.as_slice());
-    ASSERT_EQ("hello", g.as_slice());
-  }
-
-  {
-    td::SecureString h("hello");
-    td::SecureString g(std::move(h));
-    ASSERT_EQ("", h.as_slice());
-    ASSERT_EQ("hello", g.as_slice());
-  }
-
-  {
-    td::Stage stage;
-    td::SharedSlice a;
-    td::SharedSlice b;
-    td::vector<td::thread> threads(2);
-    for (int i = 0; i < 2; i++) {
-      threads[i] = td::thread([i, &stage, &a, &b] {
-        for (int j = 0; j < 10000; j++) {
-          if (i == 0) {
-            a = td::SharedSlice("hello");
-            b = a.clone();
-          }
-          stage.wait((2 * j + 1) * 2);
-          if (i == 0) {
-            ASSERT_EQ('h', a[0]);
-            a.clear();
-          } else {
-            td::UniqueSharedSlice c(std::move(b));
-            c.as_mutable_slice()[0] = '!';
-          }
-          stage.wait((2 * j + 2) * 2);
-        }
-      });
-    }
-    for (auto &thread : threads) {
-      thread.join();
-    }
-  }
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/StealingQueue.cpp b/third-party/td/td/tdutils/test/StealingQueue.cpp
deleted file mode 100644
index 9cfe5b0546..0000000000
--- a/third-party/td/td/tdutils/test/StealingQueue.cpp
+++ /dev/null
@@ -1,180 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/AtomicRead.h"
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/MpmcQueue.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/StealingQueue.h"
-#include "td/utils/tests.h"
-
-#include <atomic>
-#include <cstring>
-
-TEST(StealingQueue, very_simple) {
-  td::StealingQueue<int, 8> q;
-  q.local_push(1, [](auto x) { UNREACHABLE(); });
-  int x;
-  CHECK(q.local_pop(x));
-  ASSERT_EQ(1, x);
-}
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(AtomicRead, simple) {
-  td::Stage run;
-  td::Stage check;
-
-  std::size_t threads_n = 10;
-  td::vector<td::thread> threads;
-
-  int x{0};
-  std::atomic<int> version{0};
-
-  td::int64 res = 0;
-  for (std::size_t i = 0; i < threads_n; i++) {
-    threads.emplace_back([&, id = static_cast<td::uint32>(i)] {
-      for (td::uint64 round = 1; round < 10000; round++) {
-        run.wait(round * threads_n);
-        if (id == 0) {
-          version++;
-          x++;
-          version++;
-        } else {
-          int y = 0;
-          auto v1 = version.load();
-          y = x;
-          auto v2 = version.load();
-          if (v1 == v2 && v1 % 2 == 0) {
-            res += y;
-          }
-        }
-
-        check.wait(round * threads_n);
-      }
-    });
-  }
-  td::do_not_optimize_away(res);
-  for (auto &thread : threads) {
-    thread.join();
-  }
-}
-
-TEST(AtomicRead, simple2) {
-  td::Stage run;
-  td::Stage check;
-
-  std::size_t threads_n = 10;
-  td::vector<td::thread> threads;
-
-  struct Value {
-    td::uint64 value = 0;
-    char str[50] = "0 0 0 0";
-  };
-  td::AtomicRead<Value> value;
-
-  auto to_str = [](td::uint64 i) {
-    return PSTRING() << i << " " << i << " " << i << " " << i;
-  };
-  for (std::size_t i = 0; i < threads_n; i++) {
-    threads.emplace_back([&, id = static_cast<td::uint32>(i)] {
-      for (td::uint64 round = 1; round < 10000; round++) {
-        run.wait(round * threads_n);
-        if (id == 0) {
-          auto x = value.lock();
-          x->value = round;
-          auto str = to_str(round);
-          std::memcpy(x->str, str.c_str(), str.size() + 1);
-        } else {
-          Value x;
-          value.read(x);
-          LOG_CHECK(x.value == round || x.value == round - 1) << x.value << " " << round;
-          CHECK(x.str == to_str(x.value));
-        }
-        check.wait(round * threads_n);
-      }
-    });
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-}
-
-TEST(StealingQueue, simple) {
-  td::uint64 sum = 0;
-  std::atomic<td::uint64> check_sum{0};
-
-  td::Stage run;
-  td::Stage check;
-
-  std::size_t threads_n = 10;
-  td::vector<td::thread> threads;
-  td::vector<td::StealingQueue<int, 8>> lq(threads_n);
-  td::MpmcQueue<int> gq(threads_n);
-
-  constexpr td::uint64 XN = 20;
-  td::uint64 x_sum[XN];
-  x_sum[0] = 0;
-  x_sum[1] = 1;
-  for (td::uint64 i = 2; i < XN; i++) {
-    x_sum[i] = i + x_sum[i - 1] + x_sum[i - 2];
-  }
-
-  td::Random::Xorshift128plus rnd(123);
-  for (std::size_t i = 0; i < threads_n; i++) {
-    threads.emplace_back([&, id = static_cast<td::uint32>(i)] {
-      for (td::uint64 round = 1; round < 1000; round++) {
-        if (id == 0) {
-          sum = 0;
-          auto n = static_cast<int>(rnd() % 5);
-          for (int j = 0; j < n; j++) {
-            auto x = static_cast<int>(rnd() % XN);
-            sum += x_sum[x];
-            gq.push(x, id);
-          }
-          check_sum = 0;
-        }
-        run.wait(round * threads_n);
-        while (check_sum.load() != sum) {
-          auto x = [&] {
-            int res;
-            if (lq[id].local_pop(res)) {
-              return res;
-            }
-            if (gq.try_pop(res, id)) {
-              return res;
-            }
-            if (lq[id].steal(res, lq[static_cast<size_t>(rnd()) % threads_n])) {
-              //LOG(ERROR) << "STEAL";
-              return res;
-            }
-            return 0;
-          }();
-          if (x == 0) {
-            continue;
-          }
-          //LOG(ERROR) << x << " " << check_sum.load() << " " << sum;
-          check_sum.fetch_add(x, std::memory_order_relaxed);
-          lq[id].local_push(x - 1, [&](auto y) {
-            //LOG(ERROR) << "OVERFLOW";
-            gq.push(y, id);
-          });
-          if (x > 1) {
-            lq[id].local_push(x - 2, [&](auto y) { gq.push(y, id); });
-          }
-        }
-        check.wait(round * threads_n);
-      }
-    });
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/WaitFreeHashMap.cpp b/third-party/td/td/tdutils/test/WaitFreeHashMap.cpp
deleted file mode 100644
index ee7e57df6b..0000000000
--- a/third-party/td/td/tdutils/test/WaitFreeHashMap.cpp
+++ /dev/null
@@ -1,95 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-#include "td/utils/WaitFreeHashMap.h"
-
-TEST(WaitFreeHashMap, stress_test) {
-  td::Random::Xorshift128plus rnd(123);
-  td::FlatHashMap<td::uint64, td::uint64> reference;
-  td::WaitFreeHashMap<td::uint64, td::uint64> map;
-
-  td::vector<td::RandomSteps::Step> steps;
-  auto add_step = [&](td::uint32 weight, auto f) {
-    steps.emplace_back(td::RandomSteps::Step{std::move(f), weight});
-  };
-
-  auto gen_key = [&] {
-    return rnd() % 100000 + 1;
-  };
-
-  auto check = [&](bool check_size = false) {
-    if (check_size) {
-      ASSERT_EQ(reference.size(), map.calc_size());
-    }
-    ASSERT_EQ(reference.empty(), map.empty());
-
-    if (reference.size() < 100) {
-      td::uint64 result = 0;
-      for (auto &it : reference) {
-        result += it.first * 101;
-        result += it.second;
-      }
-      map.foreach([&](const td::uint64 &key, td::uint64 &value) {
-        result -= key * 101;
-        result -= value;
-      });
-      ASSERT_EQ(0u, result);
-    }
-  };
-
-  add_step(2000, [&] {
-    auto key = gen_key();
-    auto value = rnd();
-    reference[key] = value;
-    if (td::Random::fast_bool()) {
-      map.set(key, value);
-    } else {
-      map[key] = value;
-    }
-    ASSERT_EQ(reference[key], map.get(key));
-    check();
-  });
-
-  add_step(200, [&] {
-    auto key = gen_key();
-    ASSERT_EQ(reference[key], map[key]);
-    check(true);
-  });
-
-  add_step(2000, [&] {
-    auto key = gen_key();
-    auto ref_it = reference.find(key);
-    auto ref_value = ref_it == reference.end() ? 0 : ref_it->second;
-    ASSERT_EQ(ref_value, map.get(key));
-    check();
-  });
-
-  add_step(500, [&] {
-    auto key = gen_key();
-    size_t reference_erased_count = reference.erase(key);
-    size_t map_erased_count = map.erase(key);
-    ASSERT_EQ(reference_erased_count, map_erased_count);
-    check();
-  });
-
-  td::RandomSteps runner(std::move(steps));
-  for (size_t i = 0; i < 1000000; i++) {
-    runner.step(rnd);
-  }
-
-  for (size_t test = 0; test < 1000; test++) {
-    reference = {};
-    map = {};
-
-    for (size_t i = 0; i < 100; i++) {
-      runner.step(rnd);
-    }
-  }
-}
diff --git a/third-party/td/td/tdutils/test/WaitFreeHashSet.cpp b/third-party/td/td/tdutils/test/WaitFreeHashSet.cpp
deleted file mode 100644
index d14d4c49f8..0000000000
--- a/third-party/td/td/tdutils/test/WaitFreeHashSet.cpp
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-#include "td/utils/WaitFreeHashSet.h"
-
-TEST(WaitFreeHashSet, stress_test) {
-  td::Random::Xorshift128plus rnd(123);
-  td::FlatHashSet<td::uint64> reference;
-  td::WaitFreeHashSet<td::uint64> set;
-
-  td::vector<td::RandomSteps::Step> steps;
-  auto add_step = [&](td::uint32 weight, auto f) {
-    steps.emplace_back(td::RandomSteps::Step{std::move(f), weight});
-  };
-
-  auto gen_key = [&] {
-    return rnd() % 100000 + 1;
-  };
-
-  auto check = [&](bool check_size = false) {
-    if (check_size) {
-      ASSERT_EQ(reference.size(), set.calc_size());
-    }
-    ASSERT_EQ(reference.empty(), set.empty());
-
-    if (reference.size() < 100) {
-      td::uint64 result = 0;
-      for (auto &it : reference) {
-        result += it * 101;
-      }
-      set.foreach([&](const td::uint64 &key) { result -= key * 101; });
-      ASSERT_EQ(0u, result);
-    }
-  };
-
-  add_step(2000, [&] {
-    auto key = gen_key();
-    ASSERT_EQ(reference.count(key), set.count(key));
-    reference.insert(key);
-    set.insert(key);
-    ASSERT_EQ(reference.count(key), set.count(key));
-    check();
-  });
-
-  add_step(500, [&] {
-    auto key = gen_key();
-    size_t reference_erased_count = reference.erase(key);
-    size_t set_erased_count = set.erase(key);
-    ASSERT_EQ(reference_erased_count, set_erased_count);
-    check();
-  });
-
-  td::RandomSteps runner(std::move(steps));
-  for (size_t i = 0; i < 1000000; i++) {
-    runner.step(rnd);
-  }
-
-  for (size_t test = 0; test < 1000; test++) {
-    reference = {};
-    set = {};
-
-    for (size_t i = 0; i < 100; i++) {
-      runner.step(rnd);
-    }
-  }
-}
diff --git a/third-party/td/td/tdutils/test/WaitFreeVector.cpp b/third-party/td/td/tdutils/test/WaitFreeVector.cpp
deleted file mode 100644
index 1edf4fbe6e..0000000000
--- a/third-party/td/td/tdutils/test/WaitFreeVector.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-#include "td/utils/WaitFreeVector.h"
-
-TEST(WaitFreeVector, stress_test) {
-  td::Random::Xorshift128plus rnd(123);
-  td::vector<td::uint64> reference;
-  td::WaitFreeVector<td::uint64> vector;
-
-  td::vector<td::RandomSteps::Step> steps;
-  auto add_step = [&](td::uint32 weight, auto f) {
-    steps.emplace_back(td::RandomSteps::Step{std::move(f), weight});
-  };
-
-  auto gen_key = [&] {
-    return static_cast<size_t>(rnd() % reference.size());
-  };
-
-  add_step(2000, [&] {
-    ASSERT_EQ(reference.size(), vector.size());
-    ASSERT_EQ(reference.empty(), vector.empty());
-    if (reference.empty()) {
-      return;
-    }
-    auto key = gen_key();
-    ASSERT_EQ(reference[key], vector[key]);
-    auto value = rnd();
-    reference[key] = value;
-    vector[key] = value;
-    ASSERT_EQ(reference[key], vector[key]);
-  });
-
-  add_step(2000, [&] {
-    ASSERT_EQ(reference.size(), vector.size());
-    ASSERT_EQ(reference.empty(), vector.empty());
-    auto value = rnd();
-    reference.emplace_back(value);
-    if (rnd() & 1) {
-      vector.emplace_back(value);
-    } else if (rnd() & 1) {
-      vector.push_back(value);
-    } else {
-      vector.push_back(std::move(value));
-    }
-    ASSERT_EQ(reference.back(), vector.back());
-  });
-
-  add_step(500, [&] {
-    ASSERT_EQ(reference.size(), vector.size());
-    ASSERT_EQ(reference.empty(), vector.empty());
-    if (reference.empty()) {
-      return;
-    }
-    reference.pop_back();
-    vector.pop_back();
-  });
-
-  td::RandomSteps runner(std::move(steps));
-  for (size_t i = 0; i < 1000000; i++) {
-    runner.step(rnd);
-  }
-}
diff --git a/third-party/td/td/tdutils/test/bitmask.cpp b/third-party/td/td/tdutils/test/bitmask.cpp
deleted file mode 100644
index 39da5f4b4b..0000000000
--- a/third-party/td/td/tdutils/test/bitmask.cpp
+++ /dev/null
@@ -1,248 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-
-class RangeSet {
-  template <class T>
-  static auto find(T &ranges, td::int64 begin) {
-    return std::lower_bound(ranges.begin(), ranges.end(), begin,
-                            [](const Range &range, td::int64 begin) { return range.end < begin; });
-  }
-  auto find(td::int64 begin) const {
-    return find(ranges_, begin);
-  }
-  auto find(td::int64 begin) {
-    return find(ranges_, begin);
-  }
-
- public:
-  struct Range {
-    td::int64 begin;
-    td::int64 end;
-  };
-
-  static constexpr td::int64 BIT_SIZE = 1024;
-
-  static RangeSet create_one_range(td::int64 end, td::int64 begin = 0) {
-    RangeSet res;
-    res.ranges_.push_back({begin, end});
-    return res;
-  }
-
-  static td::Result<RangeSet> decode(td::CSlice data) {
-    if (!td::check_utf8(data)) {
-      return td::Status::Error("Invalid encoding");
-    }
-    td::uint32 curr = 0;
-    bool is_empty = false;
-    RangeSet res;
-    for (auto begin = data.ubegin(); begin != data.uend();) {
-      td::uint32 size;
-      begin = td::next_utf8_unsafe(begin, &size);
-
-      if (!is_empty && size != 0) {
-        res.ranges_.push_back({curr * BIT_SIZE, (curr + size) * BIT_SIZE});
-      }
-      curr += size;
-      is_empty = !is_empty;
-    }
-    return res;
-  }
-
-  td::string encode(td::int64 prefix_size = -1) const {
-    td::vector<td::uint32> sizes;
-    td::uint32 all_end = 0;
-
-    if (prefix_size != -1) {
-      prefix_size = (prefix_size + BIT_SIZE - 1) / BIT_SIZE * BIT_SIZE;
-    }
-    for (auto it : ranges_) {
-      if (prefix_size != -1 && it.begin >= prefix_size) {
-        break;
-      }
-      if (prefix_size != -1 && it.end > prefix_size) {
-        it.end = prefix_size;
-      }
-
-      CHECK(it.begin % BIT_SIZE == 0);
-      CHECK(it.end % BIT_SIZE == 0);
-      auto begin = td::narrow_cast<td::uint32>(it.begin / BIT_SIZE);
-      auto end = td::narrow_cast<td::uint32>(it.end / BIT_SIZE);
-      if (sizes.empty()) {
-        if (begin != 0) {
-          sizes.push_back(0);
-          sizes.push_back(begin);
-        }
-      } else {
-        sizes.push_back(begin - all_end);
-      }
-      sizes.push_back(end - begin);
-      all_end = end;
-    }
-
-    td::string res;
-    for (auto c : sizes) {
-      td::append_utf8_character(res, c);
-    }
-    return res;
-  }
-
-  td::int64 get_ready_prefix_size(td::int64 offset, td::int64 file_size = -1) const {
-    auto it = find(offset);
-    if (it == ranges_.end()) {
-      return 0;
-    }
-    if (it->begin > offset) {
-      return 0;
-    }
-    CHECK(offset >= it->begin);
-    CHECK(offset <= it->end);
-    auto end = it->end;
-    if (file_size != -1 && end > file_size) {
-      end = file_size;
-    }
-    if (end < offset) {
-      return 0;
-    }
-    return end - offset;
-  }
-
-  td::int64 get_total_size(td::int64 file_size) const {
-    td::int64 res = 0;
-    for (auto it : ranges_) {
-      if (it.begin >= file_size) {
-        break;
-      }
-      if (it.end > file_size) {
-        it.end = file_size;
-      }
-      res += it.end - it.begin;
-    }
-    return res;
-  }
-
-  td::int64 get_ready_parts(td::int64 offset_part, td::int32 part_size) const {
-    auto offset = offset_part * part_size;
-    auto it = find(offset);
-    if (it == ranges_.end()) {
-      return 0;
-    }
-    if (it->begin > offset) {
-      return 0;
-    }
-    return (it->end - offset) / part_size;
-  }
-
-  bool is_ready(td::int64 begin, td::int64 end) const {
-    auto it = find(begin);
-    if (it == ranges_.end()) {
-      return false;
-    }
-    return it->begin <= begin && end <= it->end;
-  }
-
-  void set(td::int64 begin, td::int64 end) {
-    CHECK(begin % BIT_SIZE == 0);
-    CHECK(end % BIT_SIZE == 0);
-    // 1. skip all with r.end < begin
-    auto it_begin = find(begin);
-
-    // 2. combine with all r.begin <= end
-    auto it_end = it_begin;
-    for (; it_end != ranges_.end() && it_end->begin <= end; ++it_end) {
-    }
-
-    if (it_begin == it_end) {
-      ranges_.insert(it_begin, Range{begin, end});
-    } else {
-      begin = td::min(begin, it_begin->begin);
-      --it_end;
-      end = td::max(end, it_end->end);
-      *it_end = Range{begin, end};
-      ranges_.erase(it_begin, it_end);
-    }
-  }
-
-  td::vector<td::int32> as_vector(td::int32 part_size) const {
-    td::vector<td::int32> res;
-    for (const auto &it : ranges_) {
-      auto begin = td::narrow_cast<td::int32>((it.begin + part_size - 1) / part_size);
-      auto end = td::narrow_cast<td::int32>(it.end / part_size);
-      while (begin < end) {
-        res.push_back(begin++);
-      }
-    }
-    return res;
-  }
-
- private:
-  td::vector<Range> ranges_;
-};
-
-TEST(Bitmask, simple) {
-  auto validate_encoding = [](auto &rs) {
-    auto str = rs.encode();
-    RangeSet rs2 = RangeSet::decode(str).move_as_ok();
-    auto str2 = rs2.encode();
-    rs = std::move(rs2);
-    CHECK(str2 == str);
-  };
-  {
-    RangeSet rs;
-    td::int32 S = 128 * 1024;
-    td::int32 O = S * 5000;
-    for (int i = 1; i < 30; i++) {
-      if (i % 2 == 0) {
-        rs.set(O + S * i, O + S * (i + 1));
-      }
-    }
-    validate_encoding(rs);
-  }
-  {
-    RangeSet rs;
-    td::int32 S = 1024;
-    auto get = [&](auto p) {
-      return rs.get_ready_prefix_size(p * S) / S;
-    };
-    auto set = [&](auto l, auto r) {
-      rs.set(l * S, r * S);
-      validate_encoding(rs);
-      ASSERT_TRUE(rs.is_ready(l * S, r * S));
-      ASSERT_TRUE(get(l) >= (r - l));
-    };
-    set(6, 7);
-    ASSERT_EQ(1, get(6));
-    ASSERT_EQ(0, get(5));
-    set(8, 9);
-    ASSERT_EQ(0, get(7));
-    set(7, 8);
-    ASSERT_EQ(2, get(7));
-    ASSERT_EQ(3, get(6));
-    set(3, 5);
-    ASSERT_EQ(1, get(4));
-    set(4, 6);
-    ASSERT_EQ(5, get(4));
-    set(10, 11);
-    set(9, 10);
-    ASSERT_EQ(8, get(3));
-    set(14, 16);
-    set(12, 13);
-    ASSERT_EQ(8, get(3));
-
-    ASSERT_EQ(10, rs.get_ready_prefix_size(S * 3, S * 3 + 10));
-    ASSERT_TRUE(!rs.is_ready(S * 11, S * 12));
-    ASSERT_EQ(3, rs.get_ready_parts(2, S * 2));
-    ASSERT_EQ(td::vector<td::int32>({2, 3, 4, 7}), rs.as_vector(S * 2));
-  }
-}
diff --git a/third-party/td/td/tdutils/test/buffer.cpp b/third-party/td/td/tdutils/test/buffer.cpp
deleted file mode 100644
index 8a30c67b3d..0000000000
--- a/third-party/td/td/tdutils/test/buffer.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/tests.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/Random.h"
-
-TEST(Buffer, buffer_builder) {
-  {
-    td::BufferBuilder builder;
-    builder.append("b");
-    builder.prepend("a");
-    builder.append("c");
-    ASSERT_EQ(builder.extract().as_slice(), "abc");
-  }
-  {
-    td::BufferBuilder builder{"hello", 0, 0};
-    ASSERT_EQ(builder.extract().as_slice(), "hello");
-  }
-  {
-    td::BufferBuilder builder{"hello", 1, 1};
-    builder.prepend("A ");
-    builder.append(" B");
-    ASSERT_EQ(builder.extract().as_slice(), "A hello B");
-  }
-  {
-    auto str = td::rand_string('a', 'z', 10000);
-    auto split_str = td::rand_split(str);
-
-    int l = td::Random::fast(0, static_cast<int>(split_str.size() - 1));
-    int r = l;
-    td::BufferBuilder builder(split_str[l], 123, 1000);
-    while (l != 0 || r != static_cast<int>(split_str.size()) - 1) {
-      if (l == 0 || (td::Random::fast_bool() && r != static_cast<int>(split_str.size() - 1))) {
-        r++;
-        if (td::Random::fast_bool()) {
-          builder.append(split_str[r]);
-        } else {
-          builder.append(td::BufferSlice(split_str[r]));
-        }
-      } else {
-        l--;
-        if (td::Random::fast_bool()) {
-          builder.prepend(split_str[l]);
-        } else {
-          builder.prepend(td::BufferSlice(split_str[l]));
-        }
-      }
-    }
-    ASSERT_EQ(builder.extract().as_slice(), str);
-  }
-}
diff --git a/third-party/td/td/tdutils/test/crypto.cpp b/third-party/td/td/tdutils/test/crypto.cpp
deleted file mode 100644
index e77ea2cd30..0000000000
--- a/third-party/td/td/tdutils/test/crypto.cpp
+++ /dev/null
@@ -1,471 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/base64.h"
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/UInt.h"
-
-#include <limits>
-
-static td::vector<td::string> strings{"", "1", "short test string", td::string(1000000, 'a')};
-
-#if TD_HAVE_OPENSSL
-#if TD_HAVE_ZLIB
-TEST(Crypto, Aes) {
-  td::Random::Xorshift128plus rnd(123);
-  td::UInt256 key;
-  rnd.bytes(as_mutable_slice(key));
-  td::string plaintext(16, '\0');
-  td::string encrypted(16, '\0');
-  td::string decrypted(16, '\0');
-  rnd.bytes(plaintext);
-
-  td::AesState encryptor;
-  encryptor.init(as_slice(key), true);
-  td::AesState decryptor;
-  decryptor.init(as_slice(key), false);
-
-  encryptor.encrypt(td::as_slice(plaintext).ubegin(), td::as_mutable_slice(encrypted).ubegin(), 16);
-  decryptor.decrypt(td::as_slice(encrypted).ubegin(), td::as_mutable_slice(decrypted).ubegin(), 16);
-
-  CHECK(decrypted == plaintext);
-  CHECK(decrypted != encrypted);
-  CHECK(td::crc32(encrypted) == 178892237);
-}
-
-TEST(Crypto, AesCtrState) {
-  td::vector<td::uint32> answers1{0u,         1141589763u, 596296607u,  3673001485u, 2302125528u,
-                                  330967191u, 2047392231u, 3537459563u, 307747798u,  2149598133u};
-  td::vector<td::uint32> answers2{0u,         2053451992u, 1384063362u, 3266188502u, 2893295118u,
-                                  780356167u, 1904947434u, 2043402406u, 472080809u,  1807109488u};
-
-  std::size_t i = 0;
-  for (auto length : {0, 1, 31, 32, 33, 9999, 10000, 10001, 999999, 1000001}) {
-    td::uint32 seed = length;
-    td::string s(length, '\0');
-    for (auto &c : s) {
-      seed = seed * 123457567u + 987651241u;
-      c = static_cast<char>((seed >> 23) & 255);
-    }
-
-    td::UInt256 key;
-    for (auto &c : key.raw) {
-      seed = seed * 123457567u + 987651241u;
-      c = (seed >> 23) & 255;
-    }
-    td::UInt128 iv;
-    for (auto &c : iv.raw) {
-      seed = seed * 123457567u + 987651241u;
-      c = (seed >> 23) & 255;
-    }
-
-    td::AesCtrState state;
-    state.init(as_slice(key), as_slice(iv));
-    td::string t(length, '\0');
-    std::size_t pos = 0;
-    for (const auto &str : td::rand_split(td::string(length, '\0'))) {
-      auto len = str.size();
-      state.encrypt(td::Slice(s).substr(pos, len), td::MutableSlice(t).substr(pos, len));
-      pos += len;
-    }
-    ASSERT_EQ(answers1[i], td::crc32(t));
-    state.init(as_slice(key), as_slice(iv));
-    pos = 0;
-    for (const auto &str : td::rand_split(td::string(length, '\0'))) {
-      auto len = str.size();
-      state.decrypt(td::Slice(t).substr(pos, len), td::MutableSlice(t).substr(pos, len));
-      pos += len;
-    }
-    ASSERT_STREQ(td::base64_encode(s), td::base64_encode(t));
-
-    for (auto &c : iv.raw) {
-      c = 0xFF;
-    }
-    state.init(as_slice(key), as_slice(iv));
-    pos = 0;
-    for (const auto &str : td::rand_split(td::string(length, '\0'))) {
-      auto len = str.size();
-      state.encrypt(td::Slice(s).substr(pos, len), td::MutableSlice(t).substr(pos, len));
-      pos += len;
-    }
-    ASSERT_EQ(answers2[i], td::crc32(t));
-
-    i++;
-  }
-}
-
-TEST(Crypto, AesIgeState) {
-  td::vector<td::uint32> answers1{0u, 2045698207u, 2423540300u, 525522475u, 1545267325u, 724143417u};
-
-  std::size_t i = 0;
-  for (auto length : {0, 16, 32, 256, 1024, 65536}) {
-    td::uint32 seed = length;
-    td::string s(length, '\0');
-    for (auto &c : s) {
-      seed = seed * 123457567u + 987651241u;
-      c = static_cast<char>((seed >> 23) & 255);
-    }
-
-    td::UInt256 key;
-    for (auto &c : key.raw) {
-      seed = seed * 123457567u + 987651241u;
-      c = (seed >> 23) & 255;
-    }
-    td::UInt256 iv;
-    for (auto &c : iv.raw) {
-      seed = seed * 123457567u + 987651241u;
-      c = (seed >> 23) & 255;
-    }
-
-    td::AesIgeState state;
-    state.init(as_slice(key), as_slice(iv), true);
-    td::string t(length, '\0');
-    td::UInt256 iv_copy = iv;
-    td::string u(length, '\0');
-    std::size_t pos = 0;
-    for (const auto &str : td::rand_split(td::string(length / 16, '\0'))) {
-      auto len = 16 * str.size();
-      state.encrypt(td::Slice(s).substr(pos, len), td::MutableSlice(t).substr(pos, len));
-      td::aes_ige_encrypt(as_slice(key), as_mutable_slice(iv_copy), td::Slice(s).substr(pos, len),
-                          td::MutableSlice(u).substr(pos, len));
-      pos += len;
-    }
-
-    ASSERT_EQ(answers1[i], td::crc32(t));
-    ASSERT_EQ(answers1[i], td::crc32(u));
-
-    state.init(as_slice(key), as_slice(iv), false);
-    iv_copy = iv;
-    pos = 0;
-    for (const auto &str : td::rand_split(td::string(length / 16, '\0'))) {
-      auto len = 16 * str.size();
-      state.decrypt(td::Slice(t).substr(pos, len), td::MutableSlice(t).substr(pos, len));
-      td::aes_ige_decrypt(as_slice(key), as_mutable_slice(iv_copy), td::Slice(u).substr(pos, len),
-                          td::MutableSlice(u).substr(pos, len));
-      pos += len;
-    }
-    ASSERT_STREQ(td::base64_encode(s), td::base64_encode(t));
-    ASSERT_STREQ(td::base64_encode(s), td::base64_encode(u));
-
-    i++;
-  }
-}
-
-TEST(Crypto, AesCbcState) {
-  td::vector<td::uint32> answers1{0u, 3617355989u, 3449188102u, 186999968u, 4244808847u, 2626031206u};
-
-  std::size_t i = 0;
-  for (auto length : {0, 16, 32, 256, 1024, 65536}) {
-    td::uint32 seed = length;
-    td::string s(length, '\0');
-    for (auto &c : s) {
-      seed = seed * 123457567u + 987651241u;
-      c = static_cast<char>((seed >> 23) & 255);
-    }
-
-    td::UInt256 key;
-    for (auto &c : key.raw) {
-      seed = seed * 123457567u + 987651241u;
-      c = (seed >> 23) & 255;
-    }
-    td::UInt128 iv;
-    for (auto &c : iv.raw) {
-      seed = seed * 123457567u + 987651241u;
-      c = (seed >> 23) & 255;
-    }
-
-    td::AesCbcState state(as_slice(key), as_slice(iv));
-    td::string t(length, '\0');
-    td::UInt128 iv_copy = iv;
-    td::string u(length, '\0');
-    std::size_t pos = 0;
-    for (const auto &str : td::rand_split(td::string(length / 16, '\0'))) {
-      auto len = 16 * str.size();
-      state.encrypt(td::Slice(s).substr(pos, len), td::MutableSlice(t).substr(pos, len));
-      td::aes_cbc_encrypt(as_slice(key), as_mutable_slice(iv_copy), td::Slice(s).substr(pos, len),
-                          td::MutableSlice(u).substr(pos, len));
-      pos += len;
-    }
-
-    ASSERT_EQ(answers1[i], td::crc32(t));
-    ASSERT_EQ(answers1[i], td::crc32(u));
-
-    state = td::AesCbcState(as_slice(key), as_slice(iv));
-    iv_copy = iv;
-    pos = 0;
-    for (const auto &str : td::rand_split(td::string(length / 16, '\0'))) {
-      auto len = 16 * str.size();
-      state.decrypt(td::Slice(t).substr(pos, len), td::MutableSlice(t).substr(pos, len));
-      td::aes_cbc_decrypt(as_slice(key), as_mutable_slice(iv_copy), td::Slice(u).substr(pos, len),
-                          td::MutableSlice(u).substr(pos, len));
-      pos += len;
-    }
-    ASSERT_STREQ(td::base64_encode(s), td::base64_encode(t));
-    ASSERT_STREQ(td::base64_encode(s), td::base64_encode(u));
-
-    i++;
-  }
-}
-#endif
-
-TEST(Crypto, Sha256State) {
-  for (auto length : {0, 1, 31, 32, 33, 9999, 10000, 10001, 999999, 1000001}) {
-    auto s = td::rand_string(std::numeric_limits<char>::min(), std::numeric_limits<char>::max(), length);
-    td::UInt256 baseline;
-    td::sha256(s, as_mutable_slice(baseline));
-
-    td::Sha256State state;
-    state.init();
-    td::Sha256State state2 = std::move(state);
-    auto v = td::rand_split(s);
-    for (auto &x : v) {
-      state2.feed(x);
-    }
-    state = std::move(state2);
-    td::UInt256 result;
-    state.extract(as_mutable_slice(result));
-    ASSERT_TRUE(baseline == result);
-  }
-}
-
-TEST(Crypto, PBKDF) {
-  td::vector<td::string> passwords{"", "qwerty", td::string(1000, 'a')};
-  td::vector<td::string> salts{"", "qwerty", td::string(1000, 'a')};
-  td::vector<int> iteration_counts{1, 2, 1000};
-  td::vector<td::Slice> answers{
-      "984LZT0tcqQQjPWr6RL/3Xd2Ftu7J6cOggTzri0Pb60=", "lzmEEdaupDp3rO+SImq4J41NsGaL0denanJfdoCsRcU=",
-      "T8WKIcEAzhg1uPmZHXOLVpZdFLJOF2H73/xprF4LZno=", "NHxAnMhPOATsb1wV0cGDlAIs+ofzI6I4I8eGJeWN9Qw=",
-      "fjYi7waEPjbVYEuZ61/Nm2hbk/vRdShoJoXg4Ygnqe4=", "GhW6e95hGJSf+ID5IrSbvzWyBZ1l35A+UoL55Uh/njk=",
-      "BueLDpqSCEc0GWk83WgMwz3UsWwfvVKcvllETSB/Yq8=", "hgHgJZNWRh78PyPdVJsK8whgHOHQbNQiyaTuGDX2IFo=",
-      "T2xdyNT1GlcA4+MVNzOe7NCgSAAzNkanNsmuoSr+4xQ=", "/f6t++GUPE+e63+0TrlInL+UsmzRSAAFopa8BBBmb2w=",
-      "8Zn98QEAKS9wPOUlN09+pfm0SWs1IGeQxQkNMT/1k48=", "sURLQ/6UX/KVYedyQB21oAtMJ+STZ4iwpxfQtqmWkLw=",
-      "T9t/EJXFpPs2Lhca7IVGphTC/OdEloPMHw1UhDnXcyQ=", "TIrtN05E9KQL6Lp/wjtbsFS+KkWZ8jlGK0ErtaoitOg=",
-      "+1KcMBjyUNz5VMaIfE5wkGwS6I+IQ5FhK+Ou2HgtVoQ=", "h36ci1T0vGllCl/xJxq6vI7n28Bg40dilzWOKg6Jt8k=",
-      "9uwsHJsotTiTqqCYftN729Dg7QI2BijIjV2MvSEUAeE=", "/l+vd/XYgbioh1SfLMaGRr13udmY6TLSlG4OYmytwGU=",
-      "7qfZZBbMRLtgjqq7GHgWa/UfXPajW8NXpJ6/T3P1rxI=", "ufwz94p28WnoOFdbrb1oyQEzm/v0CV2b0xBVxeEPJGA=",
-      "T/PUUBX2vGMUsI6httlhbMHlGPMvqFBNzayU5voVlaw=", "viMvsvTg9GfQymF3AXZ8uFYTDa3qLrqJJk9w/74iZfg=",
-      "HQF+rOZMW4DAdgZz8kAMe28eyIi0rs3a3u/mUeGPNfs=", "7lBVA+GnSxWF/eOo+tyyTB7niMDl1MqP8yzo+xnHTyw=",
-      "aTWb7HQAxaTKhSiRPY3GuM1GVmq/FPuwWBU/TUpdy70=", "fbg8M/+Ht/oU+UAZ4dQcGPo+wgCCHaA+GM4tm5jnWcY=",
-      "DJbCGFMIR/5neAlpda8Td5zftK4NGekVrg2xjrKW/4c="};
-
-  std::size_t pos = 0;
-  for (auto &password : passwords) {
-    for (auto &salt : salts) {
-      for (auto &iteration_count : iteration_counts) {
-        char result[32];
-        td::pbkdf2_sha256(password, salt, iteration_count, {result, 32});
-        ASSERT_STREQ(answers[pos], td::base64_encode({result, 32}));
-        pos++;
-      }
-    }
-  }
-}
-
-TEST(Crypto, sha1) {
-  td::vector<td::Slice> answers{"2jmj7l5rSw0yVb/vlWAYkK/YBwk=", "NWoZK3kTsExUV00Ywo1G5jlUKKs=",
-                                "uRysQwoax0pNJeBC3+zpQzJy1rA=", "NKqXPNTE2qT2Husr260nMWU0AW8="};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    unsigned char output[20];
-    td::sha1(strings[i], output);
-    ASSERT_STREQ(answers[i], td::base64_encode(td::Slice(output, 20)));
-  }
-}
-
-TEST(Crypto, sha256) {
-  td::vector<td::Slice> answers{
-      "47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=", "a4ayc/80/OGda4BO/1o/V0etpOqiLx1JwB5S3beHW0s=",
-      "yPMaY7Q8PKPwCsw64UnDD5mhRcituEJgzLZMvr0O8pY=", "zcduXJkU+5KBocfihNc+Z/GAmkiklyAOBG05zMcRLNA="};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    td::string output(32, '\0');
-    td::sha256(strings[i], output);
-    ASSERT_STREQ(answers[i], td::base64_encode(output));
-  }
-}
-
-TEST(Crypto, md5) {
-  td::vector<td::Slice> answers{
-      "1B2M2Y8AsgTpgAmY7PhCfg==", "xMpCOKC5I4INzFCab3WEmw==", "vwBninYbDRkgk+uA7GMiIQ==", "dwfWrk4CfHDuoqk1wilvIQ=="};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    td::string output(16, '\0');
-    td::md5(strings[i], output);
-    ASSERT_STREQ(answers[i], td::base64_encode(output));
-  }
-}
-
-TEST(Crypto, hmac_sha256) {
-  td::vector<td::Slice> answers{
-      "t33rfT85UOe6N00BhsNwobE+f2TnW331HhdvQ4GdJp8=", "BQl5HF2jqhCz4JTqhAs+H364oxboh7QlluOMHuuRVh8=",
-      "NCCPuZBsAPBd/qr3SyeYE+e1RNgzkKJCS/+eXDBw8zU=", "mo3ahTkyLKfoQoYA0s7vRZULuH++vqwFJD0U5n9HHw0="};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    td::string output(32, '\0');
-    td::hmac_sha256("cucumber", strings[i], output);
-    ASSERT_STREQ(answers[i], td::base64_encode(output));
-  }
-}
-
-TEST(Crypto, hmac_sha512) {
-  td::vector<td::Slice> answers{
-      "o28hTN1m/TGlm/VYxDIzOdUE4wMpQzO8hVcTkiP2ezEJXtrOvCjRnl20aOV1S8axA5Te0TzIjfIoEAtpzamIsA==",
-      "32X3GslSz0HDznSrCNt++ePRcFVSUSD+tfOVannyxS+yLt/om11qILCE64RFTS8/B84gByMzC3FuAlfcIam/KA==",
-      "BVqe5rK1Fg1i+C7xXTAzT9vDPcf3kQQpTtse6rT/EVDzKo9AUo4ZwyUyJ0KcLHoffIjul/TuJoBg+wLz7Z7r7g==",
-      "WASmeku5Pcfz7N0Kp4Q3I9sxtO2MiaBXA418CY0HvjdtmAo7QY+K3E0o9UemgGzz41KqeypzRC92MwOAOnXJLA=="};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    td::string output(64, '\0');
-    td::hmac_sha512("cucumber", strings[i], output);
-    ASSERT_STREQ(answers[i], td::base64_encode(output));
-  }
-}
-#endif
-
-#if TD_HAVE_ZLIB
-TEST(Crypto, crc32) {
-  td::vector<td::uint32> answers{0u, 2212294583u, 3013144151u, 3693461436u};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    ASSERT_EQ(answers[i], td::crc32(strings[i]));
-  }
-}
-#endif
-
-#if TD_HAVE_CRC32C
-TEST(Crypto, crc32c) {
-  td::vector<td::uint32> answers{0u, 2432014819u, 1077264849u, 1131405888u};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    ASSERT_EQ(answers[i], td::crc32c(strings[i]));
-
-    auto v = td::rand_split(strings[i]);
-    td::uint32 a = 0;
-    td::uint32 b = 0;
-    for (auto &x : v) {
-      a = td::crc32c_extend(a, x);
-      auto x_crc = td::crc32c(x);
-      b = td::crc32c_extend(b, x_crc, x.size());
-    }
-    ASSERT_EQ(answers[i], a);
-    ASSERT_EQ(answers[i], b);
-  }
-}
-
-TEST(Crypto, crc32c_benchmark) {
-  class Crc32cExtendBenchmark final : public td::Benchmark {
-   public:
-    explicit Crc32cExtendBenchmark(size_t chunk_size) : chunk_size_(chunk_size) {
-    }
-    td::string get_description() const final {
-      return PSTRING() << "CRC32C with chunk_size = " << chunk_size_;
-    }
-    void start_up_n(int n) final {
-      if (n > (1 << 20)) {
-        cnt_ = n / (1 << 20);
-        n = (1 << 20);
-      } else {
-        cnt_ = 1;
-      }
-      data_ = td::string(n, 'a');
-    }
-    void run(int n) final {
-      td::uint32 res = 0;
-      for (int i = 0; i < cnt_; i++) {
-        td::Slice data(data_);
-        while (!data.empty()) {
-          auto head = data.substr(0, chunk_size_);
-          data = data.substr(head.size());
-          res = td::crc32c_extend(res, head);
-        }
-      }
-      td::do_not_optimize_away(res);
-    }
-
-   private:
-    size_t chunk_size_;
-    td::string data_;
-    int cnt_;
-  };
-  bench(Crc32cExtendBenchmark(2));
-  bench(Crc32cExtendBenchmark(8));
-  bench(Crc32cExtendBenchmark(32));
-  bench(Crc32cExtendBenchmark(128));
-  bench(Crc32cExtendBenchmark(65536));
-}
-#endif
-
-TEST(Crypto, crc64) {
-  td::vector<td::uint64> answers{0ull, 3039664240384658157ull, 17549519902062861804ull, 8794730974279819706ull};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    ASSERT_EQ(answers[i], td::crc64(strings[i]));
-  }
-}
-
-TEST(Crypto, crc16) {
-  td::vector<td::uint16> answers{0, 9842, 25046, 37023};
-
-  for (std::size_t i = 0; i < strings.size(); i++) {
-    ASSERT_EQ(answers[i], td::crc16(strings[i]));
-  }
-}
-
-static td::Slice rsa_private_key = R"ABCD(
------BEGIN PRIVATE KEY-----
-MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDeYT5/prmLEa2Q
-tZND+UwTmif8kl2VlXaMCjj1k1lJJq8BqS8cVM2vPnOPzFoiC2LYykhm4kk7goCC
-ZH6wez9yakg28fcq0Ycv0x8DL1K+VKHJuwIhVfQs//IY1/cBOrMESc+NQowPbv1t
-TIFxBO2gebnpLuseht8ix7XtpGC4qAaHN2aEvT2cRsnA76TAK1RVxf1OYGUFBDzY
-318WpVZfVIjcQ7K9+eU6b2Yb84VLlvJXw3e1rvw+fBzx2EjpD4zhXy11YppWDyV6
-HEb2hs3cGS/LbHfHvdcSfil2omaJP97MDEEY2HFxjR/E5CEf2suvPzX4XS3RE+S3
-2aEJaaQbAgMBAAECggEAKo3XRNwls0wNt5xXcvF4smOUdUuY5u/0AHZQUgYBVvM1
-GA9E+ZnsxjUgLgs/0DX3k16aHj39H4sohksuxxy+lmlqKkGBN8tioC85RwW+Qre1
-QgIsNS7ai+XqcQCavrx51z88nV53qNhnXIwAVR1JT6Ubg1i8G1pZxrEKyk/jRlJd
-mGjf6vjitH//PPkghPJ/D42k93YRcy+duOgqYDQpLZp8DiEGfYrX10B1H7HrWLV+
-Wp5KO1YXtKgQUplj6kYy72bVajbxYTvzgjaaKsh74jBO0uT3tHTtXG0dcKGb0VR/
-cqP/1H/lC9bAnAqAGefNusGJQZIElvTsrpIQXOeZsQKBgQD2W04S+FjqYYFjnEFX
-6eL4it01afs5M3/C6CcI5JQtN6p+Na4NCSILol33xwhakn87zqdADHawBYQVQ8Uw
-dPurl805wfkzN3AbfdDmtx0IJ8vK4HFpktRjfpwBVhlVtm1doAYFqqsuCF2vWW1t
-mM2YOSq4AnRHCeBb/P6kRIW0MwKBgQDnFawKKqiC4tuyBOkkEhexlm7x9he0md7D
-3Z2hc3Bmdcq1niw4wBq3HUxGLReGCcSr5epKSQwkunlTn5ZSC6Rmbe4zxsGIwbb3
-5W3342swBaoxEIuBokBvZ/xUOXVwiqKj+S/NzVkZcnT6K9V/HnUCQR+JBbQxFQaX
-iiezcjKoeQKBgCIVUcDoIQ0UPl10ocmy7xbpx177calhSZzCl5vwW9vBptHdRV5C
-VDZ92ThNjgdR205/8b23u7fwm2yBusdQd/0ufFMwVfTTB6yWBI/W56pYLya7VJWB
-nebB/n1k1w53tbvNRugDy7kLqUJ4Qd521ILp7dIVbNbjM+omH2jEnibnAoGBAIM5
-a1jaoJay/M86uqohHBNcuePtO8jzF+1iDAGC7HFCsrov+CzB6mnR2V6AfLtBEM4M
-4d8NXDf/LKawGUy+D72a74m3dG+UkbJ0Nt5t5pB+pwb1vkL/QFgDVOb/OhGOqI01
-FFBqLA6nUIZAHhzxzsBY+u90rb6xkey8J49faiUBAoGAaMgOgEvQB5H19ZL5tMkl
-A/DKtTz/NFzN4Zw/vNPVb7eNn4jg9M25d9xqvL4acOa+nuV3nLHbcUWE1/7STXw1
-gT58CvoEmD1AiP95nup+HKHENJ1DWMgF5MDfVQwGCvWP5/Qy89ybr0eG8HjbldbN
-MpSmzz2wOz152oGdOd3syT4=
------END PRIVATE KEY-----
-)ABCD";
-
-static td::Slice rsa_public_key = R"ABCD(
------BEGIN PUBLIC KEY-----
-MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3mE+f6a5ixGtkLWTQ/lM
-E5on/JJdlZV2jAo49ZNZSSavAakvHFTNrz5zj8xaIgti2MpIZuJJO4KAgmR+sHs/
-cmpINvH3KtGHL9MfAy9SvlShybsCIVX0LP/yGNf3ATqzBEnPjUKMD279bUyBcQTt
-oHm56S7rHobfIse17aRguKgGhzdmhL09nEbJwO+kwCtUVcX9TmBlBQQ82N9fFqVW
-X1SI3EOyvfnlOm9mG/OFS5byV8N3ta78Pnwc8dhI6Q+M4V8tdWKaVg8lehxG9obN
-3Bkvy2x3x73XEn4pdqJmiT/ezAxBGNhxcY0fxOQhH9rLrz81+F0t0RPkt9mhCWmk
-GwIDAQAB
------END PUBLIC KEY-----
-)ABCD";
-
-TEST(Crypto, rsa) {
-  auto value = td::rand_string('a', 'z', 200);
-  auto encrypted_value = td::rsa_encrypt_pkcs1_oaep(rsa_public_key, value).move_as_ok();
-  auto decrypted_value = td::rsa_decrypt_pkcs1_oaep(rsa_private_key, encrypted_value.as_slice()).move_as_ok();
-  ASSERT_TRUE(decrypted_value.as_slice().truncate(value.size()) == value);
-}
diff --git a/third-party/td/td/tdutils/test/emoji.cpp b/third-party/td/td/tdutils/test/emoji.cpp
deleted file mode 100644
index 91bfbbd419..0000000000
--- a/third-party/td/td/tdutils/test/emoji.cpp
+++ /dev/null
@@ -1,148 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/emoji.h"
-#include "td/utils/tests.h"
-
-TEST(Emoji, is_emoji) {
-  ASSERT_TRUE(!td::is_emoji(""));
-  ASSERT_TRUE(td::is_emoji("👩🏼‍❤‍💋‍👩🏻"));
-  ASSERT_TRUE(td::is_emoji("👩🏼‍❤‍💋‍👩🏻️"));  // not in RGI emoji ZWJ sequence set
-  ASSERT_TRUE(td::is_emoji("👩🏼‍❤️‍💋‍👩🏻"));
-  ASSERT_TRUE(td::is_emoji("👩🏼‍❤️‍💋‍👩🏻️"));
-  ASSERT_TRUE(!td::is_emoji("👩🏼‍❤️️‍💋‍👩🏻"));
-  ASSERT_TRUE(td::is_emoji("⌚"));
-  ASSERT_TRUE(td::is_emoji("⌚️"));
-  ASSERT_TRUE(td::is_emoji("↔"));
-  ASSERT_TRUE(td::is_emoji("🪗"));
-  ASSERT_TRUE(td::is_emoji("2️⃣"));
-  ASSERT_TRUE(td::is_emoji("2⃣"));
-  ASSERT_TRUE(!td::is_emoji(" 2⃣"));
-  ASSERT_TRUE(!td::is_emoji("2⃣ "));
-  ASSERT_TRUE(!td::is_emoji(" "));
-  ASSERT_TRUE(!td::is_emoji(""));
-  ASSERT_TRUE(!td::is_emoji("1234567890123456789012345678901234567890123456789012345678901234567890"));
-  ASSERT_TRUE(td::is_emoji("❤️"));
-  ASSERT_TRUE(td::is_emoji("❤"));
-  ASSERT_TRUE(td::is_emoji("⌚"));
-  ASSERT_TRUE(td::is_emoji("🎄"));
-  ASSERT_TRUE(td::is_emoji("🧑‍🎄"));
-  ASSERT_TRUE(td::is_emoji("©️"));
-  ASSERT_TRUE(td::is_emoji("©"));
-  ASSERT_TRUE(!td::is_emoji("©️️"));
-  ASSERT_TRUE(td::is_emoji("🕵️‍♂️"));
-  ASSERT_TRUE(td::is_emoji("🕵‍♂️"));  // not in RGI emoji ZWJ sequence set
-  ASSERT_TRUE(td::is_emoji("🕵️‍♂"));  // not in RGI emoji ZWJ sequence set
-  ASSERT_TRUE(td::is_emoji("🕵‍♂"));
-  ASSERT_TRUE(td::is_emoji("🏌️‍♂️"));
-  ASSERT_TRUE(td::is_emoji("🏋️‍♂️"));
-  ASSERT_TRUE(td::is_emoji("🏌‍♂️"));  // not in RGI emoji ZWJ sequence set
-  ASSERT_TRUE(td::is_emoji("🏋‍♂️"));  // not in RGI emoji ZWJ sequence set
-  ASSERT_TRUE(!td::is_emoji("a‍🤝‍👨"));
-  ASSERT_TRUE(!td::is_emoji("👩‍a‍👨"));
-  ASSERT_TRUE(!td::is_emoji("👩‍🤝‍a"));
-  ASSERT_TRUE(td::is_emoji("👩‍🤝‍👨"));  // not in RGI emoji ZWJ sequence set
-}
-
-static void test_get_fitzpatrick_modifier(td::string emoji, int result) {
-  ASSERT_EQ(result, td::get_fitzpatrick_modifier(emoji));
-}
-
-TEST(Emoji, get_fitzpatrick_modifier) {
-  test_get_fitzpatrick_modifier("", 0);
-  test_get_fitzpatrick_modifier("👩🏼‍❤‍💋‍👩🏻", 2);
-  test_get_fitzpatrick_modifier("👩🏼‍❤️‍💋‍👩🏻", 2);
-  test_get_fitzpatrick_modifier("👋", 0);
-  test_get_fitzpatrick_modifier("👋🏻", 2);
-  test_get_fitzpatrick_modifier("👋🏼", 3);
-  test_get_fitzpatrick_modifier("👋🏽", 4);
-  test_get_fitzpatrick_modifier("👋🏾", 5);
-  test_get_fitzpatrick_modifier("👋🏿", 6);
-  test_get_fitzpatrick_modifier("🏻", 2);
-  test_get_fitzpatrick_modifier("🏼", 3);
-  test_get_fitzpatrick_modifier("🏽", 4);
-  test_get_fitzpatrick_modifier("🏾", 5);
-  test_get_fitzpatrick_modifier("🏿", 6);
-  test_get_fitzpatrick_modifier("⌚", 0);
-  test_get_fitzpatrick_modifier("↔", 0);
-  test_get_fitzpatrick_modifier("🪗", 0);
-  test_get_fitzpatrick_modifier("2️⃣", 0);
-  test_get_fitzpatrick_modifier("2⃣", 0);
-  test_get_fitzpatrick_modifier("❤️", 0);
-  test_get_fitzpatrick_modifier("❤", 0);
-  test_get_fitzpatrick_modifier("⌚", 0);
-  test_get_fitzpatrick_modifier("🎄", 0);
-  test_get_fitzpatrick_modifier("🧑‍🎄", 0);
-}
-
-static void test_remove_emoji_modifiers(td::string emoji, const td::string &result, bool remove_selectors = true) {
-  ASSERT_STREQ(result, td::remove_emoji_modifiers(emoji, remove_selectors));
-  td::remove_emoji_modifiers_in_place(emoji, remove_selectors);
-  ASSERT_STREQ(result, emoji);
-  ASSERT_STREQ(emoji, td::remove_emoji_modifiers(emoji, remove_selectors));
-}
-
-TEST(Emoji, remove_emoji_modifiers) {
-  test_remove_emoji_modifiers("", "");
-  test_remove_emoji_modifiers("👩🏼‍❤‍💋‍👩🏻", "👩‍❤‍💋‍👩");
-  test_remove_emoji_modifiers("👩🏼‍❤️‍💋‍👩🏻", "👩‍❤‍💋‍👩");
-  test_remove_emoji_modifiers("👩🏼‍❤️‍💋‍👩🏻", "👩‍❤️‍💋‍👩", false);
-  test_remove_emoji_modifiers("👋🏻", "👋");
-  test_remove_emoji_modifiers("👋🏼", "👋");
-  test_remove_emoji_modifiers("👋🏽", "👋");
-  test_remove_emoji_modifiers("👋🏾", "👋");
-  test_remove_emoji_modifiers("👋🏿", "👋");
-  test_remove_emoji_modifiers("🏻", "🏻");
-  test_remove_emoji_modifiers("🏼", "🏼");
-  test_remove_emoji_modifiers("🏽", "🏽");
-  test_remove_emoji_modifiers("🏾", "🏾");
-  test_remove_emoji_modifiers("🏿", "🏿");
-  test_remove_emoji_modifiers("⌚", "⌚");
-  test_remove_emoji_modifiers("↔", "↔");
-  test_remove_emoji_modifiers("🪗", "🪗");
-  test_remove_emoji_modifiers("2️⃣", "2⃣");
-  test_remove_emoji_modifiers("2⃣", "2⃣");
-  test_remove_emoji_modifiers("❤️", "❤");
-  test_remove_emoji_modifiers("❤", "❤");
-  test_remove_emoji_modifiers("⌚", "⌚");
-  test_remove_emoji_modifiers("️", "️");
-  test_remove_emoji_modifiers("️️️🏻", "️️️🏻");
-  test_remove_emoji_modifiers("️️️🏻a", "a");
-  test_remove_emoji_modifiers("🎄", "🎄");
-  test_remove_emoji_modifiers("🧑‍🎄", "🧑‍🎄");
-}
-
-static void test_remove_emoji_selectors(td::string emoji, const td::string &result) {
-  ASSERT_STREQ(result, td::remove_emoji_selectors(result));
-  ASSERT_STREQ(result, td::remove_emoji_selectors(emoji));
-}
-
-TEST(Emoji, remove_emoji_selectors) {
-  test_remove_emoji_selectors("", "");
-  test_remove_emoji_selectors("👩🏼‍❤‍💋‍👩🏻", "👩🏼‍❤‍💋‍👩🏻");
-  test_remove_emoji_selectors("👩🏼‍❤️‍💋‍👩🏻", "👩🏼‍❤‍💋‍👩🏻");
-  test_remove_emoji_selectors("👋🏻", "👋🏻");
-  test_remove_emoji_selectors("👋🏼", "👋🏼");
-  test_remove_emoji_selectors("👋🏽", "👋🏽");
-  test_remove_emoji_selectors("👋🏾", "👋🏾");
-  test_remove_emoji_selectors("👋🏿", "👋🏿");
-  test_remove_emoji_selectors("🏻", "🏻");
-  test_remove_emoji_selectors("🏼", "🏼");
-  test_remove_emoji_selectors("🏽", "🏽");
-  test_remove_emoji_selectors("🏾", "🏾");
-  test_remove_emoji_selectors("🏿", "🏿");
-  test_remove_emoji_selectors("⌚", "⌚");
-  test_remove_emoji_selectors("↔", "↔");
-  test_remove_emoji_selectors("🪗", "🪗");
-  test_remove_emoji_selectors("2️⃣", "2⃣");
-  test_remove_emoji_selectors("2⃣", "2⃣");
-  test_remove_emoji_selectors("❤️", "❤");
-  test_remove_emoji_selectors("❤", "❤");
-  test_remove_emoji_selectors("⌚", "⌚");
-  test_remove_emoji_selectors("🎄", "🎄");
-  test_remove_emoji_selectors("🧑‍🎄", "🧑‍🎄");
-}
diff --git a/third-party/td/td/tdutils/test/filesystem.cpp b/third-party/td/td/tdutils/test/filesystem.cpp
deleted file mode 100644
index 95c4cb8be0..0000000000
--- a/third-party/td/td/tdutils/test/filesystem.cpp
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/filesystem.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tests.h"
-
-static void test_clean_filename(td::CSlice name, td::Slice result) {
-  ASSERT_STREQ(td::clean_filename(name), result);
-}
-
-TEST(Misc, clean_filename) {
-  test_clean_filename("-1234567", "-1234567");
-  test_clean_filename(".git", "git");
-  test_clean_filename("../../.git", "git");
-  test_clean_filename(".././..", "");
-  test_clean_filename("../", "");
-  test_clean_filename("..", "");
-  test_clean_filename("test/git/   as   dsa  .   a", "as   dsa.a");
-  test_clean_filename("     .    ", "");
-  test_clean_filename("!@#$%^&*()_+-=[]{;|:\"}'<>?,.`~", "!@#$%^  ()_+-=[]{;   }    ,.~");
-  test_clean_filename("!@#$%^&*()_+-=[]{}\\|:\";'<>?,.`~", ";    ,.~");
-  test_clean_filename("عرفها بعد قد. هذا مع تاريخ اليميني واندونيسيا،, لعدم تاريخ لهيمنة الى",
-                      "عرفها بعد قد.هذا مع تاريخ الي");
-  test_clean_filename(
-      "012345678901234567890123456789012345678901234567890123456789adsasdasdsaa.01234567890123456789asdasdasdasd",
-      "012345678901234567890123456789012345678901234567890123456789adsa.0123456789012345");
-  test_clean_filename(
-      "01234567890123456789012345678901234567890123456789adsa<>*?: <>*?:0123456789adsasdasdsaa.   "
-      "0123456789`<><<>><><>0123456789asdasdasdasd",
-      "01234567890123456789012345678901234567890123456789adsa.0123456789");
-  test_clean_filename(
-      "012345678901234567890123456789012345678901234567890123<>*?: <>*?:0123456789adsasdasdsaa.   "
-      "0123456789`<>0123456789asdasdasdasd",
-      "012345678901234567890123456789012345678901234567890123.0123456789   012");
-  test_clean_filename("C:/document.tar.gz", "document.tar.gz");
-  test_clean_filename("test....", "test");
-  test_clean_filename("....test", "test");
-  test_clean_filename("test.exe....", "test.exe");  // extension has changed
-  test_clean_filename("test.exe01234567890123456789....",
-                      "test.exe01234567890123456789");  // extension may be more than 16 characters
-  test_clean_filename("....test....asdf", "test.asdf");
-  test_clean_filename("കറുപ്പ്.txt", "കറപപ.txt");
-}
diff --git a/third-party/td/td/tdutils/test/gzip.cpp b/third-party/td/td/tdutils/test/gzip.cpp
deleted file mode 100644
index 0686c693d4..0000000000
--- a/third-party/td/td/tdutils/test/gzip.cpp
+++ /dev/null
@@ -1,247 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/algorithm.h"
-#include "td/utils/buffer.h"
-#include "td/utils/ByteFlow.h"
-#include "td/utils/common.h"
-#include "td/utils/Gzip.h"
-#include "td/utils/GzipByteFlow.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-#include "td/utils/Time.h"
-
-static void encode_decode(const td::string &s) {
-  auto r = td::gzencode(s, 2);
-  ASSERT_TRUE(!r.empty());
-  ASSERT_EQ(s, td::gzdecode(r.as_slice()));
-}
-
-TEST(Gzip, gzencode_gzdecode) {
-  encode_decode(td::rand_string(0, 255, 1000));
-  encode_decode(td::rand_string('a', 'z', 1000000));
-  encode_decode(td::string(1000000, 'a'));
-}
-
-static void test_gzencode(const td::string &s) {
-  auto begin_time = td::Time::now();
-  auto r = td::gzencode(s, td::max(2, static_cast<int>(100 / s.size())));
-  ASSERT_TRUE(!r.empty());
-  LOG(INFO) << "Encoded string of size " << s.size() << " in " << (td::Time::now() - begin_time)
-            << " seconds with compression ratio " << static_cast<double>(r.size()) / static_cast<double>(s.size());
-}
-
-TEST(Gzip, gzencode) {
-  for (size_t len = 1; len <= 10000000; len *= 10) {
-    test_gzencode(td::rand_string('a', 'a', len));
-    test_gzencode(td::rand_string('a', 'z', len));
-    test_gzencode(td::rand_string(0, 255, len));
-  }
-}
-
-TEST(Gzip, flow) {
-  auto str = td::rand_string('a', 'z', 1000000);
-  auto parts = td::rand_split(str);
-
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-  td::ByteFlowSource source(&input);
-  td::GzipByteFlow gzip_flow(td::Gzip::Mode::Encode);
-  gzip_flow = td::GzipByteFlow(td::Gzip::Mode::Encode);
-  td::ByteFlowSink sink;
-
-  source >> gzip_flow >> sink;
-
-  ASSERT_TRUE(!sink.is_ready());
-  for (auto &part : parts) {
-    input_writer.append(part);
-    source.wakeup();
-  }
-  ASSERT_TRUE(!sink.is_ready());
-  source.close_input(td::Status::OK());
-  ASSERT_TRUE(sink.is_ready());
-  ASSERT_TRUE(sink.status().is_ok());
-  auto res = sink.result()->move_as_buffer_slice().as_slice().str();
-  ASSERT_TRUE(!res.empty());
-  ASSERT_EQ(td::gzencode(str, 2).as_slice().str(), res);
-}
-TEST(Gzip, flow_error) {
-  auto str = td::rand_string('a', 'z', 1000000);
-  auto zip = td::gzencode(str, 0.9).as_slice().str();
-  ASSERT_TRUE(!zip.empty());
-  zip.resize(zip.size() - 1);
-  auto parts = td::rand_split(zip);
-
-  auto input_writer = td::ChainBufferWriter();
-  auto input = input_writer.extract_reader();
-  td::ByteFlowSource source(&input);
-  td::GzipByteFlow gzip_flow(td::Gzip::Mode::Decode);
-  td::ByteFlowSink sink;
-
-  source >> gzip_flow >> sink;
-
-  ASSERT_TRUE(!sink.is_ready());
-  for (auto &part : parts) {
-    input_writer.append(part);
-    source.wakeup();
-  }
-  ASSERT_TRUE(!sink.is_ready());
-  source.close_input(td::Status::OK());
-  ASSERT_TRUE(sink.is_ready());
-  ASSERT_TRUE(!sink.status().is_ok());
-}
-
-TEST(Gzip, encode_decode_flow) {
-  auto str = td::rand_string('a', 'z', 1000000);
-  auto parts = td::rand_split(str);
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-  td::ByteFlowSource source(&input);
-  td::GzipByteFlow gzip_encode_flow(td::Gzip::Mode::Encode);
-  td::GzipByteFlow gzip_decode_flow(td::Gzip::Mode::Decode);
-  td::GzipByteFlow gzip_encode_flow2(td::Gzip::Mode::Encode);
-  td::GzipByteFlow gzip_decode_flow2(td::Gzip::Mode::Decode);
-  td::ByteFlowSink sink;
-  source >> gzip_encode_flow >> gzip_decode_flow >> gzip_encode_flow2 >> gzip_decode_flow2 >> sink;
-
-  ASSERT_TRUE(!sink.is_ready());
-  for (auto &part : parts) {
-    input_writer.append(part);
-    source.wakeup();
-  }
-  ASSERT_TRUE(!sink.is_ready());
-  source.close_input(td::Status::OK());
-  ASSERT_TRUE(sink.is_ready());
-  LOG_IF(ERROR, sink.status().is_error()) << sink.status();
-  ASSERT_TRUE(sink.status().is_ok());
-  ASSERT_EQ(str, sink.result()->move_as_buffer_slice().as_slice().str());
-}
-
-TEST(Gzip, encode_decode_flow_big) {
-  td::clear_thread_locals();
-  auto start_mem = td::BufferAllocator::get_buffer_mem();
-  {
-    auto str = td::string(200000, 'a');
-    td::ChainBufferWriter input_writer;
-    auto input = input_writer.extract_reader();
-    td::ByteFlowSource source(&input);
-    td::GzipByteFlow gzip_encode_flow(td::Gzip::Mode::Encode);
-    td::GzipByteFlow gzip_decode_flow(td::Gzip::Mode::Decode);
-    td::GzipByteFlow gzip_encode_flow2(td::Gzip::Mode::Encode);
-    td::GzipByteFlow gzip_decode_flow2(td::Gzip::Mode::Decode);
-    td::ByteFlowSink sink;
-    source >> gzip_encode_flow >> gzip_decode_flow >> gzip_encode_flow2 >> gzip_decode_flow2 >> sink;
-
-    ASSERT_TRUE(!sink.is_ready());
-    size_t n = 200;
-    size_t left_size = n * str.size();
-    auto validate = [&](td::Slice chunk) {
-      CHECK(chunk.size() <= left_size);
-      left_size -= chunk.size();
-      ASSERT_TRUE(td::all_of(chunk, [](auto c) { return c == 'a'; }));
-    };
-
-    for (size_t i = 0; i < n; i++) {
-      input_writer.append(str);
-      source.wakeup();
-      auto extra_mem = td::BufferAllocator::get_buffer_mem() - start_mem;
-      // limit means nothing. just check that we do not use 200Mb or so
-      CHECK(extra_mem < (10 << 20));
-
-      auto size = sink.get_output()->size();
-      validate(sink.get_output()->cut_head(size).move_as_buffer_slice().as_slice());
-    }
-    ASSERT_TRUE(!sink.is_ready());
-    source.close_input(td::Status::OK());
-    ASSERT_TRUE(sink.is_ready());
-    LOG_IF(ERROR, sink.status().is_error()) << sink.status();
-    ASSERT_TRUE(sink.status().is_ok());
-    validate(sink.result()->move_as_buffer_slice().as_slice());
-    ASSERT_EQ(0u, left_size);
-  }
-  td::clear_thread_locals();
-  ASSERT_EQ(start_mem, td::BufferAllocator::get_buffer_mem());
-}
-
-TEST(Gzip, decode_encode_flow_bomb) {
-  td::string gzip_bomb_str;
-  size_t N = 200;
-  {
-    td::ChainBufferWriter input_writer;
-    auto input = input_writer.extract_reader();
-    td::GzipByteFlow gzip_flow(td::Gzip::Mode::Encode);
-    td::ByteFlowSource source(&input);
-    td::ByteFlowSink sink;
-    source >> gzip_flow >> sink;
-
-    td::string s(1 << 16, 'a');
-    for (size_t i = 0; i < N; i++) {
-      input_writer.append(s);
-      source.wakeup();
-    }
-    source.close_input(td::Status::OK());
-    ASSERT_TRUE(sink.is_ready());
-    LOG_IF(ERROR, sink.status().is_error()) << sink.status();
-    ASSERT_TRUE(sink.status().is_ok());
-    gzip_bomb_str = sink.result()->move_as_buffer_slice().as_slice().str();
-  }
-
-  td::clear_thread_locals();
-  auto start_mem = td::BufferAllocator::get_buffer_mem();
-  {
-    td::ChainBufferWriter input_writer;
-    auto input = input_writer.extract_reader();
-    td::ByteFlowSource source(&input);
-    td::GzipByteFlow::Options decode_options;
-    decode_options.write_watermark.low = 2 << 20;
-    decode_options.write_watermark.high = 4 << 20;
-    td::GzipByteFlow::Options encode_options;
-    encode_options.read_watermark.low = 2 << 20;
-    encode_options.read_watermark.high = 4 << 20;
-    td::GzipByteFlow gzip_decode_flow(td::Gzip::Mode::Decode);
-    gzip_decode_flow.set_options(decode_options);
-    td::GzipByteFlow gzip_encode_flow(td::Gzip::Mode::Encode);
-    gzip_encode_flow.set_options(encode_options);
-    td::GzipByteFlow gzip_decode_flow2(td::Gzip::Mode::Decode);
-    gzip_decode_flow2.set_options(decode_options);
-    td::GzipByteFlow gzip_encode_flow2(td::Gzip::Mode::Encode);
-    gzip_encode_flow2.set_options(encode_options);
-    td::GzipByteFlow gzip_decode_flow3(td::Gzip::Mode::Decode);
-    gzip_decode_flow3.set_options(decode_options);
-    td::ByteFlowSink sink;
-    source >> gzip_decode_flow >> gzip_encode_flow >> gzip_decode_flow2 >> gzip_encode_flow2 >> gzip_decode_flow3 >>
-        sink;
-
-    ASSERT_TRUE(!sink.is_ready());
-    size_t left_size = N * (1 << 16);
-    auto validate = [&](td::Slice chunk) {
-      CHECK(chunk.size() <= left_size);
-      left_size -= chunk.size();
-      ASSERT_TRUE(td::all_of(chunk, [](auto c) { return c == 'a'; }));
-    };
-
-    input_writer.append(gzip_bomb_str);
-    source.close_input(td::Status::OK());
-
-    do {
-      gzip_decode_flow3.wakeup();
-      gzip_decode_flow2.wakeup();
-      gzip_decode_flow.wakeup();
-      source.wakeup();
-      auto extra_mem = td::BufferAllocator::get_buffer_mem() - start_mem;
-      // limit means nothing. just check that we do not use 15Mb or so
-      CHECK(extra_mem < (5 << 20));
-      auto size = sink.get_output()->size();
-      validate(sink.get_output()->cut_head(size).move_as_buffer_slice().as_slice());
-    } while (!sink.is_ready());
-    ASSERT_EQ(0u, left_size);
-  }
-  td::clear_thread_locals();
-  ASSERT_EQ(start_mem, td::BufferAllocator::get_buffer_mem());
-}
diff --git a/third-party/td/td/tdutils/test/hashset_benchmark.cpp b/third-party/td/td/tdutils/test/hashset_benchmark.cpp
deleted file mode 100644
index 34250cf06d..0000000000
--- a/third-party/td/td/tdutils/test/hashset_benchmark.cpp
+++ /dev/null
@@ -1,649 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/FlatHashMapChunks.h"
-#include "td/utils/FlatHashTable.h"
-#include "td/utils/format.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/logging.h"
-#include "td/utils/MapNode.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Span.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/Time.h"
-#include "td/utils/VectorQueue.h"
-
-#ifdef SCOPE_EXIT
-#undef SCOPE_EXIT
-#endif
-
-#include <absl/container/flat_hash_map.h>
-#include <absl/hash/hash.h>
-#include <algorithm>
-#include <benchmark/benchmark.h>
-#include <folly/container/F14Map.h>
-#include <functional>
-#include <map>
-#include <random>
-#include <unordered_map>
-#include <utility>
-
-template <class TableT>
-static void reserve(TableT &table, std::size_t size) {
-  table.reserve(size);
-}
-
-template <class A, class B>
-static void reserve(std::map<A, B> &table, std::size_t size) {
-}
-
-template <class KeyT, class ValueT>
-class NoOpTable {
- public:
-  using key_type = KeyT;
-  using value_type = std::pair<const KeyT, ValueT>;
-  template <class It>
-  NoOpTable(It begin, It end) {
-  }
-
-  ValueT &operator[](const KeyT &) const {
-    static ValueT dummy;
-    return dummy;
-  }
-
-  KeyT find(const KeyT &key) const {
-    return key;
-  }
-};
-
-template <class KeyT, class ValueT>
-class VectorTable {
- public:
-  using key_type = KeyT;
-  using value_type = std::pair<const KeyT, ValueT>;
-  template <class It>
-  VectorTable(It begin, It end) : table_(begin, end) {
-  }
-
-  ValueT &operator[](const KeyT &needle) {
-    auto it = find(needle);
-    if (it == table_.end()) {
-      table_.emplace_back(needle, ValueT{});
-      return table_.back().second;
-    }
-    return it->second;
-  }
-  auto find(const KeyT &needle) {
-    return std::find_if(table_.begin(), table_.end(), [&](auto &key) { return key.first == needle; });
-  }
-
- private:
-  using KeyValue = value_type;
-  td::vector<KeyValue> table_;
-};
-
-template <class KeyT, class ValueT>
-class SortedVectorTable {
- public:
-  using key_type = KeyT;
-  using value_type = std::pair<KeyT, ValueT>;
-  template <class It>
-  SortedVectorTable(It begin, It end) : table_(begin, end) {
-    std::sort(table_.begin(), table_.end());
-  }
-
-  ValueT &operator[](const KeyT &needle) {
-    auto it = std::lower_bound(table_.begin(), table_.end(), needle,
-                               [](const auto &l, const auto &r) { return l.first < r; });
-    if (it == table_.end() || it->first != needle) {
-      it = table_.insert(it, {needle, ValueT{}});
-    }
-    return it->second;
-  }
-
-  auto find(const KeyT &needle) {
-    auto it = std::lower_bound(table_.begin(), table_.end(), needle,
-                               [](const auto &l, const auto &r) { return l.first < r; });
-    if (it != table_.end() && it->first == needle) {
-      return it;
-    }
-    return table_.end();
-  }
-
- private:
-  using KeyValue = value_type;
-  td::vector<KeyValue> table_;
-};
-
-template <class KeyT, class ValueT, class HashT = td::Hash<KeyT>>
-class SimpleHashTable {
- public:
-  using key_type = KeyT;
-  using value_type = std::pair<KeyT, ValueT>;
-  template <class It>
-  SimpleHashTable(It begin, It end) {
-    nodes_.resize((end - begin) * 2);
-    for (; begin != end; ++begin) {
-      insert(begin->first, begin->second);
-    }
-  }
-
-  ValueT &operator[](const KeyT &needle) {
-    UNREACHABLE();
-  }
-
-  ValueT *find(const KeyT &needle) {
-    auto hash = HashT()(needle);
-    std::size_t i = hash % nodes_.size();
-    while (true) {
-      if (nodes_[i].key == needle) {
-        return &nodes_[i].value;
-      }
-      if (nodes_[i].hash == 0) {
-        return nullptr;
-      }
-      i++;
-      if (i == nodes_.size()) {
-        i = 0;
-      }
-    }
-  }
-
- private:
-  using KeyValue = value_type;
-  struct Node {
-    std::size_t hash{0};
-    KeyT key;
-    ValueT value;
-  };
-  td::vector<Node> nodes_;
-
-  void insert(KeyT key, ValueT value) {
-    auto hash = HashT()(key);
-    std::size_t i = hash % nodes_.size();
-    while (true) {
-      if (nodes_[i].hash == 0 || (nodes_[i].hash == hash && nodes_[i].key == key)) {
-        nodes_[i].value = value;
-        nodes_[i].key = key;
-        nodes_[i].hash = hash;
-        return;
-      }
-      i++;
-      if (i == nodes_.size()) {
-        i = 0;
-      }
-    }
-  }
-};
-
-template <typename TableT>
-static void BM_Get(benchmark::State &state) {
-  std::size_t n = state.range(0);
-  constexpr std::size_t BATCH_SIZE = 1024;
-  td::Random::Xorshift128plus rnd(123);
-  using Key = typename TableT::key_type;
-  using Value = typename TableT::value_type::second_type;
-  using KeyValue = std::pair<Key, Value>;
-  td::vector<KeyValue> data;
-  td::vector<Key> keys;
-
-  TableT table;
-  for (std::size_t i = 0; i < n; i++) {
-    auto key = rnd();
-    auto value = rnd();
-    data.emplace_back(key, value);
-    table.emplace(key, value);
-    keys.push_back(key);
-  }
-
-  std::size_t key_i = 0;
-  td::rand_shuffle(td::as_mutable_span(keys), rnd);
-  auto next_key = [&] {
-    key_i++;
-    if (key_i == data.size()) {
-      key_i = 0;
-    }
-    return keys[key_i];
-  };
-
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      benchmark::DoNotOptimize(table.find(next_key()));
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_find_same(benchmark::State &state) {
-  td::Random::Xorshift128plus rnd(123);
-  TableT table;
-  constexpr std::size_t N = 100000;
-  constexpr std::size_t BATCH_SIZE = 1024;
-  reserve(table, N);
-
-  for (std::size_t i = 0; i < N; i++) {
-    table.emplace(rnd(), i);
-  }
-
-  auto key = td::Random::secure_uint64();
-  table[key] = 123;
-
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      benchmark::DoNotOptimize(table.find(key));
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_emplace_same(benchmark::State &state) {
-  td::Random::Xorshift128plus rnd(123);
-  TableT table;
-  constexpr std::size_t N = 100000;
-  constexpr std::size_t BATCH_SIZE = 1024;
-  reserve(table, N);
-
-  for (std::size_t i = 0; i < N; i++) {
-    table.emplace(rnd(), i);
-  }
-
-  auto key = 123743;
-  table[key] = 123;
-
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      benchmark::DoNotOptimize(table.emplace(key + (i & 15) * 100, 43784932));
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_emplace_string(benchmark::State &state) {
-  td::Random::Xorshift128plus rnd(123);
-  TableT table;
-  constexpr std::size_t N = 100000;
-  constexpr std::size_t BATCH_SIZE = 1024;
-  reserve(table, N);
-
-  for (std::size_t i = 0; i < N; i++) {
-    table.emplace(td::to_string(rnd()), i);
-  }
-
-  table["0"] = 123;
-  td::vector<td::string> strings;
-  for (std::size_t i = 0; i < 16; i++) {
-    strings.emplace_back(1, static_cast<char>('0' + i));
-  }
-
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      benchmark::DoNotOptimize(table.emplace(strings[i & 15], 43784932));
-    }
-  }
-}
-
-template <class K, class V, class FunctT>
-static void table_remove_if(absl::flat_hash_map<K, V> &table, FunctT &&func) {
-  for (auto it = table.begin(); it != table.end();) {
-    if (func(*it)) {
-      auto copy = it;
-      ++it;
-      table.erase(copy);
-    } else {
-      ++it;
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_remove_if(benchmark::State &state) {
-  constexpr std::size_t N = 100000;
-  constexpr std::size_t BATCH_SIZE = N;
-
-  TableT table;
-  reserve(table, N);
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    state.PauseTiming();
-    td::Random::Xorshift128plus rnd(123);
-    for (std::size_t i = 0; i < N; i++) {
-      table.emplace(rnd(), i);
-    }
-    state.ResumeTiming();
-
-    using td::table_remove_if;
-    table_remove_if(table, [](auto &it) { return it.second % 2 == 0; });
-  }
-}
-
-template <typename TableT>
-static void BM_erase_all_with_begin(benchmark::State &state) {
-  constexpr std::size_t N = 100000;
-  constexpr std::size_t BATCH_SIZE = N;
-
-  TableT table;
-  td::Random::Xorshift128plus rnd(123);
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      table.emplace(rnd() + 1, i);
-    }
-    while (!table.empty()) {
-      table.erase(table.begin());
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_cache(benchmark::State &state) {
-  constexpr std::size_t N = 1000;
-  constexpr std::size_t BATCH_SIZE = 1000000;
-
-  TableT table;
-  td::Random::Xorshift128plus rnd(123);
-  td::VectorQueue<td::uint64> keys;
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      auto key = rnd() + 1;
-      keys.push(key);
-      table.emplace(key, i);
-      if (table.size() > N) {
-        table.erase(keys.pop());
-      }
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_cache2(benchmark::State &state) {
-  constexpr std::size_t N = 1000;
-  constexpr std::size_t BATCH_SIZE = 1000000;
-
-  TableT table;
-  td::Random::Xorshift128plus rnd(123);
-  td::VectorQueue<td::uint64> keys;
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      auto key = rnd() + 1;
-      keys.push(key);
-      table.emplace(key, i);
-      if (table.size() > N) {
-        table.erase(keys.pop_rand(rnd));
-      }
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_cache3(benchmark::State &state) {
-  std::size_t N = state.range(0);
-  constexpr std::size_t BATCH_SIZE = 1000000;
-
-  TableT table;
-  td::Random::Xorshift128plus rnd(123);
-  td::VectorQueue<td::uint64> keys;
-  std::size_t step = 20;
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i += step) {
-      auto key = rnd() + 1;
-      keys.push(key);
-      table.emplace(key, i);
-
-      for (std::size_t j = 1; j < step; j++) {
-        auto key_to_find = keys.data()[rnd() % keys.size()];
-        benchmark::DoNotOptimize(table.find(key_to_find));
-      }
-
-      if (table.size() > N) {
-        table.erase(keys.pop_rand(rnd));
-      }
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_remove_if_slow(benchmark::State &state) {
-  constexpr std::size_t N = 5000;
-  constexpr std::size_t BATCH_SIZE = 500000;
-
-  TableT table;
-  td::Random::Xorshift128plus rnd(123);
-  for (std::size_t i = 0; i < N; i++) {
-    table.emplace(rnd() + 1, i);
-  }
-  auto first_key = table.begin()->first;
-  {
-    std::size_t cnt = 0;
-    using td::table_remove_if;
-    table_remove_if(table, [&cnt, n = N](auto &) {
-      cnt += 2;
-      return cnt <= n;
-    });
-  }
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      table.emplace(first_key, i);
-      table.erase(first_key);
-    }
-  }
-}
-
-template <typename TableT>
-static void BM_remove_if_slow_old(benchmark::State &state) {
-  constexpr std::size_t N = 100000;
-  constexpr std::size_t BATCH_SIZE = 5000000;
-
-  TableT table;
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    td::Random::Xorshift128plus rnd(123);
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      table.emplace(rnd() + 1, i);
-      if (table.size() > N) {
-        std::size_t cnt = 0;
-        using td::table_remove_if;
-        table_remove_if(table, [&cnt, n = N](auto &) {
-          cnt += 2;
-          return cnt <= n;
-        });
-      }
-    }
-  }
-}
-
-template <typename TableT>
-static void benchmark_create(td::Slice name) {
-  td::Random::Xorshift128plus rnd(123);
-  {
-    constexpr std::size_t N = 10000000;
-    TableT table;
-    reserve(table, N);
-    auto start = td::Timestamp::now();
-    for (std::size_t i = 0; i < N; i++) {
-      table.emplace(rnd(), i);
-    }
-    auto end = td::Timestamp::now();
-    LOG(INFO) << name << ": create " << N << " elements: " << td::format::as_time(end.at() - start.at());
-
-    double res = 0;
-    td::vector<std::pair<std::size_t, td::format::Time>> pauses;
-    for (std::size_t i = 0; i < N; i++) {
-      auto emplace_start = td::Timestamp::now();
-      table.emplace(rnd(), i);
-      auto emplace_end = td::Timestamp::now();
-      auto pause = emplace_end.at() - emplace_start.at();
-      res = td::max(pause, res);
-      if (pause > 0.001) {
-        pauses.emplace_back(i, td::format::as_time(pause));
-      }
-    }
-
-    LOG(INFO) << name << ": create another " << N << " elements, max pause = " << td::format::as_time(res) << " "
-              << pauses;
-  }
-}
-
-struct CacheMissNode {
-  td::uint32 data{};
-  char padding[64 - sizeof(data)];
-};
-
-class IterateFast {
- public:
-  static td::uint32 iterate(CacheMissNode *ptr, std::size_t max_shift) {
-    td::uint32 res = 1;
-    for (std::size_t i = 0; i < max_shift; i++) {
-      if (ptr[i].data % max_shift != 0) {
-        res *= ptr[i].data;
-      } else {
-        res /= ptr[i].data;
-      }
-    }
-    return res;
-  }
-};
-
-class IterateSlow {
- public:
-  static td::uint32 iterate(CacheMissNode *ptr, std::size_t max_shift) {
-    td::uint32 res = 1;
-    for (std::size_t i = 0;; i++) {
-      if (ptr[i].data % max_shift != 0) {
-        res *= ptr[i].data;
-      } else {
-        break;
-      }
-    }
-    return res;
-  }
-};
-
-template <class F>
-static void BM_cache_miss(benchmark::State &state) {
-  td::uint32 max_shift = state.range(0);
-  bool flag = state.range(1);
-  std::random_device rd;
-  std::mt19937 rnd(rd());
-  int N = 50000000;
-  td::vector<CacheMissNode> nodes(N);
-  td::uint32 i = 0;
-  for (auto &node : nodes) {
-    if (flag) {
-      node.data = i++ % max_shift;
-    } else {
-      node.data = rnd();
-    }
-  }
-
-  td::vector<int> positions(N);
-  std::uniform_int_distribution<td::uint32> rnd_pos(0, N - 1000);
-  for (auto &pos : positions) {
-    pos = rnd_pos(rnd);
-    if (flag) {
-      pos = pos / max_shift * max_shift + 1;
-    }
-  }
-
-  while (state.KeepRunningBatch(positions.size())) {
-    for (const auto pos : positions) {
-      auto *ptr = &nodes[pos];
-      auto res = F::iterate(ptr, max_shift);
-      benchmark::DoNotOptimize(res);
-    }
-  }
-}
-
-static td::uint64 equal_mask_slow(td::uint8 *bytes, td::uint8 needle) {
-  td::uint64 mask = 0;
-  for (int i = 0; i < 16; i++) {
-    mask |= (bytes[i] == needle) << i;
-  }
-  return mask;
-}
-
-template <class MaskT>
-static void BM_mask(benchmark::State &state) {
-  std::size_t BATCH_SIZE = 1024;
-  td::vector<td::uint8> bytes(BATCH_SIZE + 16);
-  for (auto &b : bytes) {
-    b = static_cast<td::uint8>(td::Random::fast(0, 17));
-  }
-
-  while (state.KeepRunningBatch(BATCH_SIZE)) {
-    for (std::size_t i = 0; i < BATCH_SIZE; i++) {
-      benchmark::DoNotOptimize(MaskT::equal_mask(bytes.data() + i, 17));
-    }
-  }
-}
-
-BENCHMARK_TEMPLATE(BM_mask, td::MaskPortable);
-#ifdef __aarch64__
-BENCHMARK_TEMPLATE(BM_mask, td::MaskNeonFolly);
-BENCHMARK_TEMPLATE(BM_mask, td::MaskNeon);
-#endif
-#if TD_SSE2
-BENCHMARK_TEMPLATE(BM_mask, td::MaskSse2);
-#endif
-
-template <class KeyT, class ValueT, class HashT = td::Hash<KeyT>, class EqT = std::equal_to<KeyT>>
-using FlatHashMapImpl = td::FlatHashTable<td::MapNode<KeyT, ValueT, EqT>, HashT, EqT>;
-
-#define FOR_EACH_TABLE(F)  \
-  F(FlatHashMapImpl)       \
-  F(td::FlatHashMapChunks) \
-  F(folly::F14FastMap)     \
-  F(absl::flat_hash_map)   \
-  F(std::unordered_map)    \
-  F(std::map)
-
-//BENCHMARK(BM_cache_miss<IterateSlow>)->Ranges({{1, 16}, {0, 1}});
-//BENCHMARK(BM_cache_miss<IterateFast>)->Ranges({{1, 16}, {0, 1}});
-//BENCHMARK_TEMPLATE(BM_Get, VectorTable<td::uint64, td::uint64>)->Range(1, 1 << 26);
-//BENCHMARK_TEMPLATE(BM_Get, SortedVectorTable<td::uint64, td::uint64>)->Range(1, 1 << 26);
-//BENCHMARK_TEMPLATE(BM_Get, NoOpTable<td::uint64, td::uint64>)->Range(1, 1 << 26);
-
-#define REGISTER_GET_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_Get, HT<td::uint64, td::uint64>)->Range(1, 1 << 23);
-
-#define REGISTER_FIND_BENCHMARK(HT)                                                                                 \
-  BENCHMARK_TEMPLATE(BM_find_same, HT<td::uint64, td::uint64>)                                                      \
-      ->ComputeStatistics("max", [](const td::vector<double> &v) { return *std::max_element(v.begin(), v.end()); }) \
-      ->ComputeStatistics("min", [](const td::vector<double> &v) { return *std::min_element(v.begin(), v.end()); }) \
-      ->Repetitions(20)                                                                                             \
-      ->DisplayAggregatesOnly(true);
-
-#define REGISTER_REMOVE_IF_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_remove_if, HT<td::uint64, td::uint64>);
-#define REGISTER_EMPLACE_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_emplace_same, HT<td::uint64, td::uint64>);
-#define REGISTER_EMPLACE_STRING_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_emplace_string, HT<td::string, td::uint64>);
-#define REGISTER_CACHE_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_cache, HT<td::uint64, td::uint64>);
-#define REGISTER_CACHE2_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_cache2, HT<td::uint64, td::uint64>);
-#define REGISTER_CACHE3_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_cache3, HT<td::uint64, td::uint64>)->Range(1, 1 << 23);
-#define REGISTER_ERASE_ALL_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_erase_all_with_begin, HT<td::uint64, td::uint64>);
-#define REGISTER_REMOVE_IF_SLOW_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_remove_if_slow, HT<td::uint64, td::uint64>);
-#define REGISTER_REMOVE_IF_SLOW_OLD_BENCHMARK(HT) BENCHMARK_TEMPLATE(BM_remove_if_slow_old, HT<td::uint64, td::uint64>);
-
-FOR_EACH_TABLE(REGISTER_GET_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_CACHE3_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_CACHE2_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_CACHE_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_REMOVE_IF_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_EMPLACE_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_EMPLACE_STRING_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_ERASE_ALL_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_FIND_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_REMOVE_IF_SLOW_OLD_BENCHMARK)
-FOR_EACH_TABLE(REGISTER_REMOVE_IF_SLOW_BENCHMARK)
-
-#define RUN_CREATE_BENCHMARK(HT) benchmark_create<HT<td::uint64, td::uint64>>(#HT);
-
-int main(int argc, char **argv) {
-  //  FOR_EACH_TABLE(RUN_CREATE_BENCHMARK);
-
-  benchmark::Initialize(&argc, argv);
-  benchmark::RunSpecifiedBenchmarks();
-  benchmark::Shutdown();
-}
diff --git a/third-party/td/td/tdutils/test/heap.cpp b/third-party/td/td/tdutils/test/heap.cpp
deleted file mode 100644
index 21bdc9b336..0000000000
--- a/third-party/td/td/tdutils/test/heap.cpp
+++ /dev/null
@@ -1,178 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/tests.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Heap.h"
-#include "td/utils/Random.h"
-#include "td/utils/Span.h"
-
-#include <cstdio>
-#include <set>
-#include <utility>
-
-TEST(Heap, sort_random_perm) {
-  int n = 1000000;
-
-  td::vector<int> v(n);
-  for (int i = 0; i < n; i++) {
-    v[i] = i;
-  }
-  td::Random::Xorshift128plus rnd(123);
-  td::rand_shuffle(td::as_mutable_span(v), rnd);
-  td::vector<td::HeapNode> nodes(n);
-  td::KHeap<int> kheap;
-  for (int i = 0; i < n; i++) {
-    kheap.insert(v[i], &nodes[i]);
-  }
-  for (int i = 0; i < n; i++) {
-    ASSERT_EQ(i, kheap.top_key());
-    kheap.pop();
-  }
-}
-
-class CheckedHeap {
- public:
-  void set_max_size(int max_size) {
-    nodes.resize(max_size);
-    free_ids.resize(max_size);
-    rev_ids.resize(max_size);
-    for (int i = 0; i < max_size; i++) {
-      free_ids[i] = max_size - i - 1;
-      nodes[i].value = i;
-    }
-  }
-
-  static void xx(int key, const td::HeapNode *heap_node) {
-    const Node *node = static_cast<const Node *>(heap_node);
-    std::fprintf(stderr, "(%d;%d)", node->key, node->value);
-  }
-
-  void check() const {
-    for (auto p : set_heap) {
-      std::fprintf(stderr, "(%d;%d)", p.first, p.second);
-    }
-    std::fprintf(stderr, "\n");
-    kheap.for_each(xx);
-    std::fprintf(stderr, "\n");
-    kheap.check();
-  }
-
-  int random_id() const {
-    CHECK(!empty());
-    return ids[td::Random::fast(0, static_cast<int>(ids.size() - 1))];
-  }
-
-  std::size_t size() const {
-    return ids.size();
-  }
-
-  bool empty() const {
-    return ids.empty();
-  }
-
-  int top_key() const {
-    CHECK(!empty());
-    int res = set_heap.begin()->first;
-    ASSERT_EQ(set_heap.size(), kheap.size());
-    ASSERT_EQ(res, kheap.top_key());
-    return res;
-  }
-
-  int insert(int key) {
-    int id;
-    if (free_ids.empty()) {
-      UNREACHABLE();
-      id = static_cast<int>(nodes.size());
-      nodes.emplace_back(key, id);
-      rev_ids.push_back(-1);
-    } else {
-      id = free_ids.back();
-      free_ids.pop_back();
-      nodes[id].key = key;
-    }
-    rev_ids[id] = static_cast<int>(ids.size());
-    ids.push_back(id);
-    kheap.insert(key, &nodes[id]);
-    set_heap.emplace(key, id);
-    return id;
-  }
-
-  void fix_key(int new_key, int id) {
-    set_heap.erase(std::make_pair(nodes[id].key, id));
-    nodes[id].key = new_key;
-    kheap.fix(new_key, &nodes[id]);
-    set_heap.emplace(new_key, id);
-  }
-
-  void erase(int id) {
-    int pos = rev_ids[id];
-    CHECK(pos != -1);
-    ids[pos] = ids.back();
-    rev_ids[ids[pos]] = pos;
-    ids.pop_back();
-    rev_ids[id] = -1;
-    free_ids.push_back(id);
-
-    kheap.erase(&nodes[id]);
-    set_heap.erase(std::make_pair(nodes[id].key, id));
-  }
-
-  void pop() {
-    CHECK(!empty());
-    Node *node = static_cast<Node *>(kheap.pop());
-    int id = node->value;
-    ASSERT_EQ(node->key, set_heap.begin()->first);
-
-    int pos = rev_ids[id];
-    CHECK(pos != -1);
-    ids[pos] = ids.back();
-    rev_ids[ids[pos]] = pos;
-    ids.pop_back();
-    rev_ids[id] = -1;
-    free_ids.push_back(id);
-
-    set_heap.erase(std::make_pair(nodes[id].key, id));
-  }
-
- private:
-  struct Node final : public td::HeapNode {
-    Node() = default;
-    Node(int key, int value) : key(key), value(value) {
-    }
-    int key = 0;
-    int value = 0;
-  };
-  td::vector<int> ids;
-  td::vector<int> rev_ids;
-  td::vector<int> free_ids;
-  td::vector<Node> nodes;
-  std::set<std::pair<int, int>> set_heap;
-  td::KHeap<int> kheap;
-};
-
-TEST(Heap, random_events) {
-  CheckedHeap heap;
-  heap.set_max_size(1000);
-  for (int i = 0; i < 300000; i++) {
-    if (!heap.empty()) {
-      heap.top_key();
-    }
-
-    int x = td::Random::fast(0, 4);
-    if (heap.empty() || (x < 2 && heap.size() < 1000)) {
-      heap.insert(td::Random::fast(0, 99));
-    } else if (x < 3) {
-      heap.fix_key(td::Random::fast(0, 99), heap.random_id());
-    } else if (x < 4) {
-      heap.erase(heap.random_id());
-    } else if (x < 5) {
-      heap.pop();
-    }
-    // heap.check();
-  }
-}
diff --git a/third-party/td/td/tdutils/test/json.cpp b/third-party/td/td/tdutils/test/json.cpp
deleted file mode 100644
index 2f896a7db2..0000000000
--- a/third-party/td/td/tdutils/test/json.cpp
+++ /dev/null
@@ -1,300 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/benchmark.h"
-#include "td/utils/common.h"
-#include "td/utils/JsonBuilder.h"
-#include "td/utils/logging.h"
-#include "td/utils/Parser.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-
-#include <utility>
-
-static void decode_encode(const td::string &str, td::string result = td::string()) {
-  auto str_copy = str;
-  auto r_value = td::json_decode(str_copy);
-  ASSERT_TRUE(r_value.is_ok());
-  if (r_value.is_error()) {
-    LOG(INFO) << r_value.error();
-    return;
-  }
-  auto new_str = td::json_encode<td::string>(r_value.ok());
-  if (result.empty()) {
-    result = str;
-  }
-  ASSERT_EQ(result, new_str);
-}
-
-TEST(JSON, array) {
-  char tmp[1000];
-  td::StringBuilder sb(td::MutableSlice{tmp, sizeof(tmp)});
-  td::JsonBuilder jb(std::move(sb));
-  jb.enter_value().enter_array() << "Hello" << -123;
-  ASSERT_EQ(jb.string_builder().is_error(), false);
-  auto encoded = jb.string_builder().as_cslice().str();
-  ASSERT_EQ("[\"Hello\",-123]", encoded);
-  decode_encode(encoded);
-}
-
-TEST(JSON, object) {
-  char tmp[1000];
-  td::StringBuilder sb(td::MutableSlice{tmp, sizeof(tmp)});
-  td::JsonBuilder jb(std::move(sb));
-  auto c = jb.enter_object();
-  c("key", "value");
-  c("1", 2);
-  c.leave();
-  ASSERT_EQ(jb.string_builder().is_error(), false);
-  auto encoded = jb.string_builder().as_cslice().str();
-  ASSERT_EQ("{\"key\":\"value\",\"1\":2}", encoded);
-  decode_encode(encoded);
-}
-
-TEST(JSON, nested) {
-  char tmp[1000];
-  td::StringBuilder sb(td::MutableSlice{tmp, sizeof(tmp)});
-  td::JsonBuilder jb(std::move(sb));
-  {
-    auto a = jb.enter_array();
-    a << 1;
-    { a.enter_value().enter_array() << 2; }
-    a << 3;
-  }
-  ASSERT_EQ(jb.string_builder().is_error(), false);
-  auto encoded = jb.string_builder().as_cslice().str();
-  ASSERT_EQ("[1,[2],3]", encoded);
-  decode_encode(encoded);
-}
-
-TEST(JSON, kphp) {
-  decode_encode("[]");
-  decode_encode("[[]]");
-  decode_encode("{}");
-  decode_encode("{}");
-  decode_encode("\"\\n\"");
-  decode_encode(
-      "\""
-      "some long string \\t \\r \\\\ \\n \\f \\\" "
-      "\\u1234"
-      "\"");
-  decode_encode(
-      "{\"keyboard\":[[\"\\u2022 abcdefg\"],[\"\\u2022 hijklmnop\"],[\"\\u2022 "
-      "qrstuvwxyz\"]],\"one_time_keyboard\":true}");
-  decode_encode(
-      "  \n   {  \"keyboard\"  : \n  [[  \"\\u2022 abcdefg\"  ]  , \n [  \"\\u2022 hijklmnop\" \n ],[  \n \"\\u2022 "
-      "qrstuvwxyz\"]], \n  \"one_time_keyboard\"\n:\ntrue\n}\n   \n",
-      "{\"keyboard\":[[\"\\u2022 abcdefg\"],[\"\\u2022 hijklmnop\"],[\"\\u2022 "
-      "qrstuvwxyz\"]],\"one_time_keyboard\":true}");
-}
-
-TEST(JSON, json_object_get_field) {
-  const td::string encoded_object =
-      "{\"null\":null,\"bool\":true,\"int\":\"1\",\"int2\":2,\"long\":\"123456789012\",\"long2\":2123456789012,"
-      "\"double\":12345678901.1,\"string\":\"string\",\"string2\":12345e+1,\"array\":[],\"object\":{}}";
-  {
-    td::string encoded_object_copy = encoded_object;
-    auto value = td::json_decode(encoded_object_copy).move_as_ok();
-    auto &object = value.get_object();
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("null")), "null");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("bool")), "true");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("bool")), "null");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("int")), "\"1\"");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("int2")), "2");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("int3")), "null");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("long")), "\"123456789012\"");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("long2")), "2123456789012");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("double")), "12345678901.1");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("string")), "\"string\"");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("string2")), "12345e+1");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("array")), "[]");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("object")), "{}");
-    ASSERT_EQ(td::json_encode<td::string>(object.extract_field("")), "null");
-  }
-
-  {
-    td::string encoded_object_copy = encoded_object;
-    auto value = td::json_decode(encoded_object_copy).move_as_ok();
-    auto &object = value.get_object();
-    ASSERT_TRUE(object.extract_optional_field("int", td::JsonValue::Type::Number).is_error());
-    ASSERT_TRUE(object.extract_optional_field("int", td::JsonValue::Type::Number).is_error());
-    ASSERT_TRUE(object.extract_optional_field("int2", td::JsonValue::Type::Number).is_ok());
-    ASSERT_TRUE(object.extract_optional_field("int2", td::JsonValue::Type::Number).is_error());
-    ASSERT_TRUE(object.extract_optional_field("int3", td::JsonValue::Type::Number).is_ok());
-    ASSERT_TRUE(object.extract_optional_field("int3", td::JsonValue::Type::Null).is_ok());
-    ASSERT_EQ(object.extract_optional_field("int", td::JsonValue::Type::String).ok().get_string(), "1");
-    ASSERT_TRUE(object.extract_optional_field("int", td::JsonValue::Type::Number).is_error());
-    ASSERT_EQ(object.extract_optional_field("int", td::JsonValue::Type::Null).ok().type(), td::JsonValue::Type::Null);
-
-    ASSERT_TRUE(object.extract_required_field("long", td::JsonValue::Type::Number).is_error());
-    ASSERT_TRUE(object.extract_required_field("long", td::JsonValue::Type::Number).is_error());
-    ASSERT_TRUE(object.extract_required_field("long2", td::JsonValue::Type::Number).is_ok());
-    ASSERT_TRUE(object.extract_required_field("long2", td::JsonValue::Type::Number).is_error());
-    ASSERT_TRUE(object.extract_required_field("long3", td::JsonValue::Type::Number).is_error());
-    ASSERT_TRUE(object.extract_required_field("long3", td::JsonValue::Type::Null).is_error());
-    ASSERT_EQ(object.extract_required_field("long", td::JsonValue::Type::String).ok().get_string(), "123456789012");
-    ASSERT_TRUE(object.extract_required_field("long", td::JsonValue::Type::Number).is_error());
-    ASSERT_EQ(object.extract_required_field("long", td::JsonValue::Type::Null).ok().type(), td::JsonValue::Type::Null);
-  }
-
-  td::string encoded_object_copy = encoded_object;
-  auto value = td::json_decode(encoded_object_copy).move_as_ok();
-  const auto &object = value.get_object();
-  ASSERT_TRUE(object.has_field("null"));
-  ASSERT_TRUE(object.has_field("object"));
-  ASSERT_TRUE(!object.has_field(""));
-  ASSERT_TRUE(!object.has_field("objec"));
-  ASSERT_TRUE(!object.has_field("object2"));
-
-  ASSERT_TRUE(object.get_optional_bool_field("int").is_error());
-  ASSERT_EQ(object.get_optional_bool_field("bool").ok(), true);
-  ASSERT_EQ(object.get_optional_bool_field("bool", false).ok(), true);
-  ASSERT_EQ(object.get_required_bool_field("bool").ok(), true);
-  ASSERT_EQ(object.get_optional_bool_field("bool3").ok(), false);
-  ASSERT_EQ(object.get_optional_bool_field("bool4", true).ok(), true);
-  ASSERT_TRUE(object.get_required_bool_field("bool5").is_error());
-
-  ASSERT_TRUE(object.get_optional_int_field("null").is_error());
-  ASSERT_EQ(object.get_optional_int_field("int").ok(), 1);
-  ASSERT_EQ(object.get_optional_int_field("int").ok(), 1);
-  ASSERT_EQ(object.get_required_int_field("int").ok(), 1);
-  ASSERT_EQ(object.get_optional_int_field("int2").ok(), 2);
-  ASSERT_EQ(object.get_optional_int_field("int2").ok(), 2);
-  ASSERT_EQ(object.get_required_int_field("int2").ok(), 2);
-  ASSERT_EQ(object.get_optional_int_field("int3").ok(), 0);
-  ASSERT_EQ(object.get_optional_int_field("int4", 5).ok(), 5);
-  ASSERT_TRUE(object.get_required_int_field("int5").is_error());
-  ASSERT_EQ(object.get_optional_int_field("long").is_error(), true);
-  ASSERT_EQ(object.get_optional_int_field("long2").is_error(), true);
-
-  ASSERT_TRUE(object.get_optional_long_field("null").is_error());
-  ASSERT_EQ(object.get_optional_long_field("long").ok(), 123456789012);
-  ASSERT_EQ(object.get_optional_long_field("long").ok(), 123456789012);
-  ASSERT_EQ(object.get_required_long_field("long").ok(), 123456789012);
-  ASSERT_EQ(object.get_optional_long_field("long2").ok(), 2123456789012);
-  ASSERT_EQ(object.get_optional_long_field("long2").ok(), 2123456789012);
-  ASSERT_EQ(object.get_required_long_field("long2").ok(), 2123456789012);
-  ASSERT_EQ(object.get_optional_long_field("long3").ok(), 0);
-  ASSERT_EQ(object.get_optional_long_field("long4", 5).ok(), 5);
-  ASSERT_TRUE(object.get_required_long_field("long5").is_error());
-  ASSERT_EQ(object.get_optional_long_field("int").ok(), 1);
-  ASSERT_EQ(object.get_optional_long_field("int2").ok(), 2);
-
-  auto are_equal_double = [](double lhs, double rhs) {
-    return rhs - 1e-3 < lhs && lhs < rhs + 1e-3;
-  };
-
-  ASSERT_TRUE(object.get_optional_double_field("null").is_error());
-  ASSERT_TRUE(are_equal_double(object.get_optional_double_field("double").ok(), 12345678901.1));
-  ASSERT_TRUE(are_equal_double(object.get_optional_double_field("double").ok(), 12345678901.1));
-  ASSERT_TRUE(are_equal_double(object.get_required_double_field("double").ok(), 12345678901.1));
-  ASSERT_TRUE(are_equal_double(object.get_optional_double_field("long2").ok(), 2123456789012.0));
-  ASSERT_TRUE(are_equal_double(object.get_optional_double_field("long2").ok(), 2123456789012.0));
-  ASSERT_TRUE(are_equal_double(object.get_required_double_field("long2").ok(), 2123456789012.0));
-  ASSERT_TRUE(are_equal_double(object.get_optional_double_field("double3").ok(), 0.0));
-  ASSERT_TRUE(are_equal_double(object.get_optional_double_field("double4", -5.23).ok(), -5.23));
-  ASSERT_TRUE(object.get_required_double_field("double5").is_error());
-  ASSERT_TRUE(object.get_optional_double_field("int").is_error());
-  ASSERT_TRUE(are_equal_double(object.get_optional_double_field("int2").ok(), 2));
-
-  ASSERT_TRUE(object.get_optional_string_field("null").is_error());
-  ASSERT_EQ(object.get_optional_string_field("string").ok(), "string");
-  ASSERT_EQ(object.get_optional_string_field("string").ok(), "string");
-  ASSERT_EQ(object.get_required_string_field("string").ok(), "string");
-  ASSERT_EQ(object.get_optional_string_field("string2").ok(), "12345e+1");
-  ASSERT_EQ(object.get_optional_string_field("string2").ok(), "12345e+1");
-  ASSERT_EQ(object.get_required_string_field("string2").ok(), "12345e+1");
-  ASSERT_EQ(object.get_optional_string_field("string3").ok(), td::string());
-  ASSERT_EQ(object.get_optional_string_field("string4", "abacaba").ok(), "abacaba");
-  ASSERT_TRUE(object.get_required_string_field("string5").is_error());
-  ASSERT_EQ(object.get_optional_string_field("int").ok(), "1");
-  ASSERT_EQ(object.get_optional_string_field("int2").ok(), "2");
-}
-
-class JsonStringDecodeBenchmark final : public td::Benchmark {
-  td::string str_;
-
- public:
-  explicit JsonStringDecodeBenchmark(td::string str) : str_('"' + str + '"') {
-  }
-
-  td::string get_description() const final {
-    return td::string("JsonStringDecodeBenchmark") + str_.substr(1, 6);
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      auto str = str_;
-      td::Parser parser(str);
-      td::json_string_decode(parser).ensure();
-    }
-  }
-};
-
-TEST(JSON, bench_json_string_decode) {
-  td::bench(JsonStringDecodeBenchmark(td::string(1000, 'a')));
-  td::bench(JsonStringDecodeBenchmark(td::string(1000, '\\')));
-  td::string str;
-  for (int i = 32; i < 128; i++) {
-    if (i == 'u') {
-      continue;
-    }
-    str += "a\\";
-    str += static_cast<char>(i);
-  }
-  td::bench(JsonStringDecodeBenchmark(str));
-}
-
-static void test_string_decode(td::string str, const td::string &result) {
-  auto str_copy = str;
-  td::Parser skip_parser(str_copy);
-  auto status = td::json_string_skip(skip_parser);
-  ASSERT_TRUE(status.is_ok());
-  ASSERT_TRUE(skip_parser.empty());
-
-  td::Parser parser(str);
-  auto r_value = td::json_string_decode(parser);
-  ASSERT_TRUE(r_value.is_ok());
-  ASSERT_TRUE(parser.empty());
-  ASSERT_EQ(result, r_value.ok());
-}
-
-static void test_string_decode_error(td::string str) {
-  auto str_copy = str;
-  td::Parser skip_parser(str_copy);
-  auto status = td::json_string_skip(skip_parser);
-  ASSERT_TRUE(status.is_error());
-
-  td::Parser parser(str);
-  auto r_value = td::json_string_decode(parser);
-  ASSERT_TRUE(r_value.is_error());
-}
-
-TEST(JSON, string_decode) {
-  test_string_decode("\"\"", "");
-  test_string_decode("\"abacaba\"", "abacaba");
-  test_string_decode(
-      "\"\\1\\a\\b\\c\\d\\e\\f\\g\\h\\i\\j\\k\\l\\m\\n\\o\\p\\q\\r\\s\\t\\u00201\\v\\w\\x\\y\\z\\U\\\"\\\\\\/\\+\\-\"",
-      "1a\bcde\fghijklm\nopq\rs\t 1vwxyzU\"\\/+-");
-  test_string_decode("\"\\u0373\\ud7FB\\uD840\\uDC04\\uD840a\\uD840\\u0373\"",
-                     "\xCD\xB3\xED\x9F\xBB\xF0\xA0\x80\x84\xed\xa1\x80\x61\xed\xa1\x80\xCD\xB3");
-
-  test_string_decode_error(" \"\"");
-  test_string_decode_error("\"");
-  test_string_decode_error("\"\\");
-  test_string_decode_error("\"\\b'");
-  test_string_decode_error("\"\\u\"");
-  test_string_decode_error("\"\\u123\"");
-  test_string_decode_error("\"\\u123g\"");
-  test_string_decode_error("\"\\u123G\"");
-  test_string_decode_error("\"\\u123 \"");
-  test_string_decode_error("\"\\ug123\"");
-  test_string_decode_error("\"\\uG123\"");
-  test_string_decode_error("\"\\u 123\"");
-  test_string_decode_error("\"\\uD800\\ug123\"");
-  test_string_decode_error("\"\\uD800\\u123\"");
-}
diff --git a/third-party/td/td/tdutils/test/log.cpp b/third-party/td/td/tdutils/test/log.cpp
deleted file mode 100644
index be5f1bf332..0000000000
--- a/third-party/td/td/tdutils/test/log.cpp
+++ /dev/null
@@ -1,187 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/AsyncFileLog.h"
-#include "td/utils/benchmark.h"
-#include "td/utils/CombinedLog.h"
-#include "td/utils/FileLog.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/MemoryLog.h"
-#include "td/utils/NullLog.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/TsFileLog.h"
-#include "td/utils/TsLog.h"
-
-#include <functional>
-#include <limits>
-
-char disable_linker_warning_about_empty_file_tdutils_test_log_cpp TD_UNUSED;
-
-#if !TD_THREAD_UNSUPPORTED
-template <class Log>
-class LogBenchmark final : public td::Benchmark {
- public:
-  LogBenchmark(std::string name, int threads_n, bool test_full_logging, std::function<td::unique_ptr<Log>()> creator)
-      : name_(std::move(name))
-      , threads_n_(threads_n)
-      , test_full_logging_(test_full_logging)
-      , creator_(std::move(creator)) {
-  }
-  std::string get_description() const final {
-    return PSTRING() << name_ << " " << (test_full_logging_ ? "ERROR" : "PLAIN") << " "
-                     << td::tag("threads_n", threads_n_);
-  }
-  void start_up() final {
-    log_ = creator_();
-    threads_.resize(threads_n_);
-  }
-  void tear_down() final {
-    if (log_ == nullptr) {
-      return;
-    }
-    for (const auto &path : log_->get_file_paths()) {
-      td::unlink(path).ignore();
-    }
-    log_.reset();
-  }
-  void run(int n) final {
-    auto old_log_interface = td::log_interface;
-    if (log_ != nullptr) {
-      td::log_interface = log_.get();
-    }
-
-    for (auto &thread : threads_) {
-      thread = td::thread([this, n] { this->run_thread(n); });
-    }
-    for (auto &thread : threads_) {
-      thread.join();
-    }
-
-    td::log_interface = old_log_interface;
-  }
-
-  void run_thread(int n) {
-    auto str = PSTRING() << "#" << n << " : fsjklfdjsklfjdsklfjdksl\n";
-    for (int i = 0; i < n; i++) {
-      if (i % 10000 == 0 && log_ != nullptr) {
-        log_->after_rotation();
-      }
-      if (test_full_logging_) {
-        LOG(ERROR) << str;
-      } else {
-        LOG(PLAIN) << str;
-      }
-    }
-  }
-
- private:
-  std::string name_;
-  td::unique_ptr<td::LogInterface> log_;
-  int threads_n_{0};
-  bool test_full_logging_{false};
-  std::function<td::unique_ptr<Log>()> creator_;
-  std::vector<td::thread> threads_;
-};
-
-template <class F>
-static void bench_log(std::string name, F &&f) {
-  for (auto test_full_logging : {false, true}) {
-    for (auto threads_n : {1, 4, 8}) {
-      bench(LogBenchmark<typename decltype(f())::element_type>(name, threads_n, test_full_logging, f));
-    }
-  }
-}
-
-TEST(Log, Bench) {
-  bench_log("NullLog", [] { return td::make_unique<td::NullLog>(); });
-
-  // bench_log("Default", []() -> td::unique_ptr<td::NullLog> { return nullptr; });
-
-  bench_log("MemoryLog", [] { return td::make_unique<td::MemoryLog<1 << 20>>(); });
-
-  bench_log("CombinedLogEmpty", [] { return td::make_unique<td::CombinedLog>(); });
-
-  bench_log("CombinedLogMemory", [] {
-    auto result = td::make_unique<td::CombinedLog>();
-    static td::NullLog null_log;
-    static td::MemoryLog<1 << 20> memory_log;
-    result->set_first(&null_log);
-    result->set_second(&memory_log);
-    result->set_first_verbosity_level(VERBOSITY_NAME(DEBUG));
-    result->set_second_verbosity_level(VERBOSITY_NAME(DEBUG));
-    return result;
-  });
-
-  bench_log("TsFileLog",
-            [] { return td::TsFileLog::create("tmplog", std::numeric_limits<td::int64>::max(), false).move_as_ok(); });
-
-  bench_log("FileLog + TsLog", [] {
-    class FileLog final : public td::LogInterface {
-     public:
-      FileLog() {
-        file_log_.init("tmplog", std::numeric_limits<td::int64>::max(), false).ensure();
-        ts_log_.init(&file_log_);
-      }
-      void do_append(int log_level, td::CSlice slice) final {
-        static_cast<td::LogInterface &>(ts_log_).do_append(log_level, slice);
-      }
-      std::vector<std::string> get_file_paths() final {
-        return file_log_.get_file_paths();
-      }
-
-     private:
-      td::FileLog file_log_;
-      td::TsLog ts_log_{nullptr};
-    };
-    return td::make_unique<FileLog>();
-  });
-
-  bench_log("FileLog", [] {
-    class FileLog final : public td::LogInterface {
-     public:
-      FileLog() {
-        file_log_.init("tmplog", std::numeric_limits<td::int64>::max(), false).ensure();
-      }
-      void do_append(int log_level, td::CSlice slice) final {
-        static_cast<td::LogInterface &>(file_log_).do_append(log_level, slice);
-      }
-      std::vector<std::string> get_file_paths() final {
-        return file_log_.get_file_paths();
-      }
-
-     private:
-      td::FileLog file_log_;
-    };
-    return td::make_unique<FileLog>();
-  });
-
-#if !TD_EVENTFD_UNSUPPORTED
-  bench_log("AsyncFileLog", [] {
-    class AsyncFileLog final : public td::LogInterface {
-     public:
-      AsyncFileLog() {
-        file_log_.init("tmplog", std::numeric_limits<td::int64>::max(), false).ensure();
-      }
-      void do_append(int log_level, td::CSlice slice) final {
-        static_cast<td::LogInterface &>(file_log_).do_append(log_level, slice);
-      }
-      std::vector<std::string> get_file_paths() final {
-        return static_cast<td::LogInterface &>(file_log_).get_file_paths();
-      }
-
-     private:
-      td::AsyncFileLog file_log_;
-    };
-    return td::make_unique<AsyncFileLog>();
-  });
-#endif
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/misc.cpp b/third-party/td/td/tdutils/test/misc.cpp
deleted file mode 100644
index adede0cdcc..0000000000
--- a/third-party/td/td/tdutils/test/misc.cpp
+++ /dev/null
@@ -1,1417 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/base64.h"
-#include "td/utils/benchmark.h"
-#include "td/utils/BigNum.h"
-#include "td/utils/bits.h"
-#include "td/utils/CancellationToken.h"
-#include "td/utils/common.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/FloodControlFast.h"
-#include "td/utils/Hash.h"
-#include "td/utils/HashMap.h"
-#include "td/utils/HashSet.h"
-#include "td/utils/HashTableUtils.h"
-#include "td/utils/invoke.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/EventFd.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/port/uname.h"
-#include "td/utils/port/wstring_convert.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/Time.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/translit.h"
-#include "td/utils/uint128.h"
-#include "td/utils/unicode.h"
-#include "td/utils/unique_value_ptr.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <atomic>
-#include <limits>
-#include <locale>
-#include <unordered_map>
-#include <utility>
-
-#if TD_HAVE_ABSL
-#include <absl/container/flat_hash_map.h>
-#include <absl/hash/hash.h>
-#endif
-
-struct CheckExitGuard {
-  explicit CheckExitGuard(bool expected_value) : expected_value_(expected_value) {
-  }
-  CheckExitGuard(CheckExitGuard &&) = delete;
-  CheckExitGuard &operator=(CheckExitGuard &&) = delete;
-  CheckExitGuard(const CheckExitGuard &) = delete;
-  CheckExitGuard &operator=(const CheckExitGuard &) = delete;
-  ~CheckExitGuard() {
-    ASSERT_EQ(expected_value_, td::ExitGuard::is_exited());
-  }
-
-  bool expected_value_;
-};
-
-static CheckExitGuard check_exit_guard_true{true};
-static td::ExitGuard exit_guard;
-
-#if TD_LINUX || TD_DARWIN
-TEST(Misc, update_atime_saves_mtime) {
-  td::string name = "test_file";
-  td::unlink(name).ignore();
-  auto r_file = td::FileFd::open(name, td::FileFd::Read | td::FileFd::Flags::Create | td::FileFd::Flags::Truncate);
-  LOG_IF(ERROR, r_file.is_error()) << r_file.error();
-  ASSERT_TRUE(r_file.is_ok());
-  r_file.move_as_ok().close();
-
-  auto info = td::stat(name).ok();
-  td::int32 tests_wa = 0;
-  for (int i = 0; i < 10000; i++) {
-    td::update_atime(name).ensure();
-    auto new_info = td::stat(name).ok();
-    if (info.mtime_nsec_ != new_info.mtime_nsec_) {
-      tests_wa++;
-      info.mtime_nsec_ = new_info.mtime_nsec_;
-    }
-    ASSERT_EQ(info.mtime_nsec_, new_info.mtime_nsec_);
-    td::usleep_for(td::Random::fast(0, 1000));
-  }
-  if (tests_wa > 0) {
-    LOG(ERROR) << "Access time was unexpectedly updated " << tests_wa << " times";
-  }
-  td::unlink(name).ensure();
-}
-
-TEST(Misc, update_atime_change_atime) {
-  td::string name = "test_file";
-  td::unlink(name).ignore();
-  auto r_file = td::FileFd::open(name, td::FileFd::Read | td::FileFd::Flags::Create | td::FileFd::Flags::Truncate);
-  LOG_IF(ERROR, r_file.is_error()) << r_file.error();
-  ASSERT_TRUE(r_file.is_ok());
-  r_file.move_as_ok().close();
-  auto info = td::stat(name).ok();
-  // not enough for fat and e.t.c.
-  td::usleep_for(5000000);
-  td::update_atime(name).ensure();
-  auto new_info = td::stat(name).ok();
-  if (info.atime_nsec_ == new_info.atime_nsec_) {
-    LOG(ERROR) << "Access time was unexpectedly not changed";
-  }
-  td::unlink(name).ensure();
-}
-#endif
-
-TEST(Misc, errno_tls_bug) {
-  // That's a problem that should be avoided
-  // errno = 0;
-  // impl_.alloc(123);
-  // CHECK(errno == 0);
-
-#if !TD_THREAD_UNSUPPORTED && !TD_EVENTFD_UNSUPPORTED
-  td::EventFd test_event_fd;
-  test_event_fd.init();
-  std::atomic<int> s{0};
-  s = 1;
-  td::thread th([&] {
-    while (s != 1) {
-    }
-    test_event_fd.acquire();
-  });
-  th.join();
-
-  for (int i = 0; i < 1000; i++) {
-    td::vector<td::EventFd> events(10);
-    td::vector<td::thread> threads;
-    for (auto &event : events) {
-      event.init();
-      event.release();
-    }
-    for (auto &event : events) {
-      threads.emplace_back([&] {
-        {
-          td::EventFd tmp;
-          tmp.init();
-          tmp.acquire();
-        }
-        event.acquire();
-      });
-    }
-    for (auto &thread : threads) {
-      thread.join();
-    }
-  }
-#endif
-}
-
-TEST(Misc, get_last_argument) {
-  auto a = td::make_unique<int>(5);
-  ASSERT_EQ(*td::get_last_argument(std::move(a)), 5);
-  ASSERT_EQ(*td::get_last_argument(1, 2, 3, 4, a), 5);
-  ASSERT_EQ(*td::get_last_argument(a), 5);
-  auto b = td::get_last_argument(1, 2, 3, std::move(a));
-  ASSERT_TRUE(!a);
-  ASSERT_EQ(*b, 5);
-}
-
-TEST(Misc, call_n_arguments) {
-  auto f = [](int, int) {
-  };
-  td::call_n_arguments<2>(f, 1, 3, 4);
-}
-
-TEST(Misc, base64) {
-  ASSERT_TRUE(td::is_base64("dGVzdA=="));
-  ASSERT_TRUE(!td::is_base64("dGVzdB=="));
-  ASSERT_TRUE(!td::is_base64("dGVzdA="));
-  ASSERT_TRUE(!td::is_base64("dGVzdA"));
-  ASSERT_TRUE(!td::is_base64("dGVzd"));
-  ASSERT_TRUE(td::is_base64("dGVz"));
-  ASSERT_TRUE(!td::is_base64("dGVz===="));
-  ASSERT_TRUE(td::is_base64(""));
-  ASSERT_TRUE(td::is_base64("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"));
-  ASSERT_TRUE(!td::is_base64("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="));
-  ASSERT_TRUE(!td::is_base64("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-/"));
-  ASSERT_TRUE(!td::is_base64("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"));
-  ASSERT_TRUE(!td::is_base64("===="));
-
-  ASSERT_TRUE(td::is_base64url("dGVzdA=="));
-  ASSERT_TRUE(!td::is_base64url("dGVzdB=="));
-  ASSERT_TRUE(!td::is_base64url("dGVzdA="));
-  ASSERT_TRUE(td::is_base64url("dGVzdA"));
-  ASSERT_TRUE(!td::is_base64url("dGVzd"));
-  ASSERT_TRUE(td::is_base64url("dGVz"));
-  ASSERT_TRUE(!td::is_base64url("dGVz===="));
-  ASSERT_TRUE(td::is_base64url(""));
-  ASSERT_TRUE(td::is_base64url("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"));
-  ASSERT_TRUE(!td::is_base64url("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_="));
-  ASSERT_TRUE(!td::is_base64url("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-/"));
-  ASSERT_TRUE(!td::is_base64url("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"));
-  ASSERT_TRUE(!td::is_base64url("===="));
-
-  ASSERT_TRUE(!td::is_base64_characters("dGVzdA=="));
-  ASSERT_TRUE(!td::is_base64_characters("dGVzdB=="));
-  ASSERT_TRUE(!td::is_base64_characters("dGVzdA="));
-  ASSERT_TRUE(td::is_base64_characters("dGVzdA"));
-  ASSERT_TRUE(td::is_base64_characters("dGVz"));
-  ASSERT_TRUE(td::is_base64_characters(""));
-  ASSERT_TRUE(td::is_base64_characters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"));
-  ASSERT_TRUE(!td::is_base64_characters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="));
-  ASSERT_TRUE(!td::is_base64_characters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-/"));
-  ASSERT_TRUE(!td::is_base64_characters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"));
-  ASSERT_TRUE(!td::is_base64_characters("===="));
-
-  ASSERT_TRUE(!td::is_base64url_characters("dGVzdA=="));
-  ASSERT_TRUE(!td::is_base64url_characters("dGVzdB=="));
-  ASSERT_TRUE(!td::is_base64url_characters("dGVzdA="));
-  ASSERT_TRUE(td::is_base64url_characters("dGVzdA"));
-  ASSERT_TRUE(td::is_base64url_characters("dGVz"));
-  ASSERT_TRUE(td::is_base64url_characters(""));
-  ASSERT_TRUE(td::is_base64url_characters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"));
-  ASSERT_TRUE(!td::is_base64url_characters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_="));
-  ASSERT_TRUE(!td::is_base64url_characters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-/"));
-  ASSERT_TRUE(!td::is_base64url_characters("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"));
-  ASSERT_TRUE(!td::is_base64url_characters("===="));
-
-  for (int l = 0; l < 300000; l += l / 20 + l / 1000 * 500 + 1) {
-    for (int t = 0; t < 10; t++) {
-      auto s = td::rand_string(std::numeric_limits<char>::min(), std::numeric_limits<char>::max(), l);
-      auto encoded = td::base64url_encode(s);
-      auto decoded = td::base64url_decode(encoded);
-      ASSERT_TRUE(decoded.is_ok());
-      ASSERT_EQ(decoded.ok(), s);
-
-      encoded = td::base64_encode(s);
-      decoded = td::base64_decode(encoded);
-      ASSERT_TRUE(decoded.is_ok());
-      ASSERT_EQ(decoded.ok(), s);
-
-      auto decoded_secure = td::base64_decode_secure(encoded);
-      ASSERT_TRUE(decoded_secure.is_ok());
-      ASSERT_EQ(decoded_secure.ok().as_slice(), s);
-    }
-  }
-
-  ASSERT_TRUE(td::base64url_decode("dGVzdA").is_ok());
-  ASSERT_TRUE(td::base64url_decode("dGVzdB").is_error());
-  ASSERT_EQ(td::base64_encode(td::base64url_decode("dGVzdA").ok()), "dGVzdA==");
-  ASSERT_EQ(td::base64_encode("any carnal pleas"), "YW55IGNhcm5hbCBwbGVhcw==");
-  ASSERT_EQ(td::base64_encode("any carnal pleasu"), "YW55IGNhcm5hbCBwbGVhc3U=");
-  ASSERT_EQ(td::base64_encode("any carnal pleasur"), "YW55IGNhcm5hbCBwbGVhc3Vy");
-  ASSERT_EQ(td::base64_encode("      /'.;.';≤.];,].',[.;/,.;/]/..;!@#!*(%?::;!%\";"),
-            "ICAgICAgLycuOy4nO+KJpC5dOyxdLicsWy47LywuOy9dLy4uOyFAIyEqKCU/Ojo7ISUiOw==");
-  ASSERT_EQ(td::base64url_encode("ab><"), "YWI-PA");
-  ASSERT_EQ(td::base64url_encode("ab><c"), "YWI-PGM");
-  ASSERT_EQ(td::base64url_encode("ab><cd"), "YWI-PGNk");
-}
-
-static void test_zero_encode(td::Slice str, td::Slice expected_zero = td::Slice(),
-                             td::Slice expected_zero_one = td::Slice()) {
-  auto encoded = td::zero_encode(str);
-  if (!expected_zero.empty()) {
-    ASSERT_EQ(encoded, expected_zero);
-  }
-  ASSERT_EQ(td::zero_decode(encoded), str);
-
-  encoded = td::zero_one_encode(str);
-  if (!expected_zero_one.empty()) {
-    ASSERT_EQ(encoded, expected_zero_one);
-  }
-  ASSERT_EQ(td::zero_one_decode(encoded), str);
-}
-
-TEST(Misc, zero_encode) {
-  td::string str;
-  for (unsigned char i = 1; i < 255; i++) {
-    str += static_cast<char>(i);
-  }
-  test_zero_encode(str, str, str);
-
-  test_zero_encode("");
-  test_zero_encode(td::Slice("\0"), td::Slice("\0\1"), td::Slice("\0\1"));
-  test_zero_encode(td::Slice("\0\xff\0\xff\0\xff\0\xff\0\xff\0\xff\0\xff"),
-                   td::Slice("\0\1\xff\0\1\xff\0\1\xff\0\1\xff\0\1\xff\0\1\xff\0\1\xff"),
-                   td::Slice("\0\1\xff\1\0\1\xff\1\0\1\xff\1\0\1\xff\1\0\1\xff\1\0\1\xff\1\0\1\xff\1"));
-  test_zero_encode(td::Slice("\0\0\xff\xff\0\0\xff\xff\0\0\xff\xff\0\0\xff\xff\0\0\xff\xff\0\0\xff\xff"),
-                   td::Slice("\0\2\xff\xff\0\2\xff\xff\0\2\xff\xff\0\2\xff\xff\0\2\xff\xff\0\2\xff\xff"),
-                   td::Slice("\0\2\xff\2\0\2\xff\2\0\2\xff\2\0\2\xff\2\0\2\xff\2\0\2\xff\2"));
-  test_zero_encode(td::Slice("\0\0\0\0\0\xff\xff\xff\xff\xff"), td::Slice("\0\5\xff\xff\xff\xff\xff"),
-                   td::Slice("\0\5\xff\5"));
-  test_zero_encode(td::Slice(
-      "\0\0\0\0\0\xff\xff\xff\xff\xff\0\0\0\0\0\xff\xff\xff\xff\xff\0\0\0\0\0\xff\xff\xff\xff\xff\0\0\0\0\0\xff\xff\xff"
-      "\xff\xff\0\0\0\0\0\xff\xff\xff\xff\xff\0\0\0\0\0\xff\xff\xff\xff\xff\0\0\0\0\0\xff\xff\xff\xff\xff"));
-  test_zero_encode(td::string(1000, '\0'));
-  test_zero_encode(str + td::string(1000, '\0') + str + td::string(1000, '\xff') + str);
-}
-
-class ZeroEncodeBenchmark final : public td::Benchmark {
- public:
-  td::string get_description() const final {
-    return "ZeroEncodeBenchmark";
-  }
-
-  void run(int n) final {
-    for (int i = 0; i < n; i++) {
-      zero_encode(
-          td::Slice("\x02\x00\x00\x02\x01\x00\x00\x00\x19\x01\x00\x00\x7c\xc8\x64\xc1\x04\xec\x82\xb8\x20\x9e\xa0\x8d"
-                    "\x1e\xbe\xb2\x79\xc4\x5a\x4c\x1e\x49\x1e\x00\x00\xa9\xa7\x31\x1b\x80\x9f\x11\x46\xfc\x97\xde\x6a"
-                    "\x18\x6e\xc0\x73\x01\x00\x00\x00\x02\x00\x00\x00\x6d\x00\x00\x00\x30\x04"));
-    }
-  }
-};
-
-TEST(Misc, bench_zero_encode) {
-  td::bench(ZeroEncodeBenchmark());
-}
-
-static void test_vector_split(td::vector<char> v, std::size_t size, const td::vector<td::vector<char>> &expected) {
-  auto split = td::vector_split(std::move(v), size);
-  if (expected != split) {
-    LOG(FATAL) << "Receive " << split << ", expected " << expected << " in vector_split";
-  }
-}
-
-TEST(Misc, vector_split) {
-  test_vector_split({}, 1, {});
-  test_vector_split({}, 2, {});
-  test_vector_split({'1'}, 1, {{'1'}});
-  test_vector_split({'1'}, 2, {{'1'}});
-  td::vector<char> v{'1', '2', '3', '4', '5', '6'};
-  test_vector_split(v, 1, {{'1'}, {'2'}, {'3'}, {'4'}, {'5'}, {'6'}});
-  test_vector_split(v, 2, {{'1', '2'}, {'3', '4'}, {'5', '6'}});
-  test_vector_split(v, 3, {{'1', '2', '3'}, {'4', '5', '6'}});
-  test_vector_split(v, 4, {{'1', '2', '3', '4'}, {'5', '6'}});
-  test_vector_split(v, 5, {{'1', '2', '3', '4', '5'}, {'6'}});
-  test_vector_split(v, 6, {v});
-  test_vector_split(v, 7, {v});
-  test_vector_split(v, 107, {v});
-  v.push_back('7');
-  test_vector_split(v, 2, {{'1', '2'}, {'3', '4'}, {'5', '6'}, {'7'}});
-}
-
-template <class T>
-static void test_remove_if(td::vector<int> v, const T &func, const td::vector<int> &expected) {
-  td::remove_if(v, func);
-  if (expected != v) {
-    LOG(FATAL) << "Receive " << v << ", expected " << expected << " in remove_if";
-  }
-}
-
-TEST(Misc, remove_if) {
-  auto odd = [](int x) {
-    return x % 2 == 1;
-  };
-  auto even = [](int x) {
-    return x % 2 == 0;
-  };
-  auto all = [](int x) {
-    return true;
-  };
-  auto none = [](int x) {
-    return false;
-  };
-
-  td::vector<int> v{1, 2, 3, 4, 5, 6};
-  test_remove_if(v, odd, {2, 4, 6});
-  test_remove_if(v, even, {1, 3, 5});
-  test_remove_if(v, all, {});
-  test_remove_if(v, none, v);
-
-  v = td::vector<int>{1, 3, 5, 2, 4, 6};
-  test_remove_if(v, odd, {2, 4, 6});
-  test_remove_if(v, even, {1, 3, 5});
-  test_remove_if(v, all, {});
-  test_remove_if(v, none, v);
-
-  v.clear();
-  test_remove_if(v, odd, v);
-  test_remove_if(v, even, v);
-  test_remove_if(v, all, v);
-  test_remove_if(v, none, v);
-
-  v.push_back(-1);
-  test_remove_if(v, odd, v);
-  test_remove_if(v, even, v);
-  test_remove_if(v, all, {});
-  test_remove_if(v, none, v);
-
-  v[0] = 1;
-  test_remove_if(v, odd, {});
-  test_remove_if(v, even, v);
-  test_remove_if(v, all, {});
-  test_remove_if(v, none, v);
-
-  v[0] = 2;
-  test_remove_if(v, odd, v);
-  test_remove_if(v, even, {});
-  test_remove_if(v, all, {});
-  test_remove_if(v, none, v);
-}
-
-static void test_remove(td::vector<int> v, int value, const td::vector<int> &expected) {
-  bool is_found = expected != v;
-  ASSERT_EQ(is_found, td::remove(v, value));
-  if (expected != v) {
-    LOG(FATAL) << "Receive " << v << ", expected " << expected << " in remove";
-  }
-}
-
-TEST(Misc, remove) {
-  td::vector<int> v{1, 2, 3, 4, 5, 6};
-  test_remove(v, 0, {1, 2, 3, 4, 5, 6});
-  test_remove(v, 1, {2, 3, 4, 5, 6});
-  test_remove(v, 2, {1, 3, 4, 5, 6});
-  test_remove(v, 3, {1, 2, 4, 5, 6});
-  test_remove(v, 4, {1, 2, 3, 5, 6});
-  test_remove(v, 5, {1, 2, 3, 4, 6});
-  test_remove(v, 6, {1, 2, 3, 4, 5});
-  test_remove(v, 7, {1, 2, 3, 4, 5, 6});
-
-  v.clear();
-  test_remove(v, -1, v);
-  test_remove(v, 0, v);
-  test_remove(v, 1, v);
-}
-
-static void test_add_to_top(td::vector<int> v, size_t max_size, int new_value, const td::vector<int> &expected) {
-  auto u = v;
-  td::add_to_top(v, max_size, new_value);
-  ASSERT_EQ(expected, v);
-
-  td::add_to_top_if(u, max_size, new_value, [new_value](int value) { return value == new_value; });
-  ASSERT_EQ(expected, u);
-}
-
-static void test_add_to_top_if(td::vector<int> v, int max_size, int new_value, const td::vector<int> &expected) {
-  td::add_to_top_if(v, max_size, new_value, [new_value](int value) { return value % 10 == new_value % 10; });
-  ASSERT_EQ(expected, v);
-}
-
-TEST(Misc, add_to_top) {
-  test_add_to_top({}, 0, 1, {1});
-  test_add_to_top({}, 1, 1, {1});
-  test_add_to_top({}, 6, 1, {1});
-
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 3, 2, {2, 1, 3, 4, 5, 6});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 6, 1, {1, 2, 3, 4, 5, 6});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 7, 1, {1, 2, 3, 4, 5, 6});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 6, 2, {2, 1, 3, 4, 5, 6});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 7, 2, {2, 1, 3, 4, 5, 6});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 6, 4, {4, 1, 2, 3, 5, 6});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 7, 4, {4, 1, 2, 3, 5, 6});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 6, 6, {6, 1, 2, 3, 4, 5});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 7, 6, {6, 1, 2, 3, 4, 5});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 6, 7, {7, 1, 2, 3, 4, 5});
-  test_add_to_top({1, 2, 3, 4, 5, 6}, 7, 7, {7, 1, 2, 3, 4, 5, 6});
-
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 6, 11, {1, 2, 3, 4, 5, 6});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 7, 21, {1, 2, 3, 4, 5, 6});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 6, 32, {2, 1, 3, 4, 5, 6});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 7, 42, {2, 1, 3, 4, 5, 6});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 6, 54, {4, 1, 2, 3, 5, 6});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 7, 64, {4, 1, 2, 3, 5, 6});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 6, 76, {6, 1, 2, 3, 4, 5});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 7, 86, {6, 1, 2, 3, 4, 5});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 6, 97, {97, 1, 2, 3, 4, 5});
-  test_add_to_top_if({1, 2, 3, 4, 5, 6}, 7, 87, {87, 1, 2, 3, 4, 5, 6});
-}
-
-static void test_unique(td::vector<int> v, const td::vector<int> &expected) {
-  auto v_str = td::transform(v, &td::to_string<int>);
-  auto expected_str = td::transform(expected, &td::to_string<int>);
-
-  td::unique(v);
-  ASSERT_EQ(expected, v);
-
-  td::unique(v_str);
-  ASSERT_EQ(expected_str, v_str);
-}
-
-TEST(Misc, unique) {
-  test_unique({1, 2, 3, 4, 5, 6}, {1, 2, 3, 4, 5, 6});
-  test_unique({5, 2, 1, 6, 3, 4}, {1, 2, 3, 4, 5, 6});
-  test_unique({}, {});
-  test_unique({0}, {0});
-  test_unique({0, 0}, {0});
-  test_unique({0, 1}, {0, 1});
-  test_unique({1, 0}, {0, 1});
-  test_unique({1, 1}, {1});
-  test_unique({1, 1, 0, 0}, {0, 1});
-  test_unique({3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 0}, {0, 1, 2, 3});
-  test_unique({3, 3, 3, 3, 3}, {3});
-  test_unique({3, 3, -1, 3, 3}, {-1, 3});
-}
-
-TEST(Misc, contains) {
-  td::vector<int> v{1, 3, 5, 7, 4, 2};
-  for (int i = -10; i < 20; i++) {
-    ASSERT_EQ(td::contains(v, i), (1 <= i && i <= 5) || i == 7);
-  }
-
-  v.clear();
-  ASSERT_TRUE(!td::contains(v, 0));
-  ASSERT_TRUE(!td::contains(v, 1));
-
-  td::string str = "abacaba";
-  ASSERT_TRUE(!td::contains(str, '0'));
-  ASSERT_TRUE(!td::contains(str, 0));
-  ASSERT_TRUE(!td::contains(str, 'd'));
-  ASSERT_TRUE(td::contains(str, 'a'));
-  ASSERT_TRUE(td::contains(str, 'b'));
-  ASSERT_TRUE(td::contains(str, 'c'));
-}
-
-TEST(Misc, base32) {
-  ASSERT_EQ("", td::base32_encode(""));
-  ASSERT_EQ("me", td::base32_encode("a"));
-  td::base32_decode("me").ensure();
-  ASSERT_EQ("mfra", td::base32_encode("ab"));
-  ASSERT_EQ("mfrgg", td::base32_encode("abc"));
-  ASSERT_EQ("mfrggza", td::base32_encode("abcd"));
-  ASSERT_EQ("mfrggzdg", td::base32_encode("abcdf"));
-  ASSERT_EQ("mfrggzdgm4", td::base32_encode("abcdfg"));
-  for (int l = 0; l < 300000; l += l / 20 + l / 1000 * 500 + 1) {
-    for (int t = 0; t < 10; t++) {
-      auto s = td::rand_string(std::numeric_limits<char>::min(), std::numeric_limits<char>::max(), l);
-      auto encoded = td::base32_encode(s);
-      auto decoded = td::base32_decode(encoded);
-      ASSERT_TRUE(decoded.is_ok());
-      ASSERT_TRUE(decoded.ok() == s);
-    }
-  }
-}
-
-TEST(Misc, to_integer) {
-  ASSERT_EQ(td::to_integer<td::int32>("-1234567"), -1234567);
-  ASSERT_EQ(td::to_integer<td::int64>("-1234567"), -1234567);
-  ASSERT_EQ(td::to_integer<td::uint32>("-1234567"), 0u);
-  ASSERT_EQ(td::to_integer<td::int16>("-1234567"), 10617);
-  ASSERT_EQ(td::to_integer<td::uint16>("-1234567"), 0u);
-  ASSERT_EQ(td::to_integer<td::int16>("-1254567"), -9383);
-  ASSERT_EQ(td::to_integer<td::uint16>("1254567"), 9383u);
-  ASSERT_EQ(td::to_integer<td::int64>("-12345678910111213"), -12345678910111213);
-  ASSERT_EQ(td::to_integer<td::uint64>("12345678910111213"), 12345678910111213ull);
-
-  ASSERT_EQ(td::to_integer_safe<td::int32>("-1234567").ok(), -1234567);
-  ASSERT_EQ(td::to_integer_safe<td::int64>("-1234567").ok(), -1234567);
-  ASSERT_TRUE(td::to_integer_safe<td::uint32>("-1234567").is_error());
-  ASSERT_TRUE(td::to_integer_safe<td::int16>("-1234567").is_error());
-  ASSERT_TRUE(td::to_integer_safe<td::uint16>("-1234567").is_error());
-  ASSERT_TRUE(td::to_integer_safe<td::int16>("-1254567").is_error());
-  ASSERT_TRUE(td::to_integer_safe<td::uint16>("1254567").is_error());
-  ASSERT_EQ(td::to_integer_safe<td::int64>("-12345678910111213").ok(), -12345678910111213);
-  ASSERT_EQ(td::to_integer_safe<td::uint64>("12345678910111213").ok(), 12345678910111213ull);
-  ASSERT_TRUE(td::to_integer_safe<td::uint64>("-12345678910111213").is_error());
-}
-
-static void test_to_double_one(td::CSlice str, td::Slice expected, int precision = 6) {
-  auto result = PSTRING() << td::StringBuilder::FixedDouble(to_double(str), precision);
-  if (expected != result) {
-    LOG(ERROR) << "To double conversion failed: have " << str << ", expected " << expected << ", parsed "
-               << to_double(str) << ", receive " << result;
-  }
-}
-
-static void test_to_double() {
-  test_to_double_one("0", "0.000000");
-  test_to_double_one("1", "1.000000");
-  test_to_double_one("-10", "-10.000000");
-  test_to_double_one("1.234", "1.234000");
-  test_to_double_one("-1.234e2", "-123.400000");
-  test_to_double_one("inf", "inf");
-  test_to_double_one("  inF  asdasd", "inf");
-  test_to_double_one("  inFasdasd", "0.000000");
-  test_to_double_one("  NaN", "nan");
-  test_to_double_one("  12345678910111213141516171819  asdasd", "12345678910111213670658736128.000000");
-  test_to_double_one("1.234567891011121314E123",
-                     "1234567891011121363209105003376291141757777526749278953577304234065881343284952489418916814035346"
-                     "625663604561924259911303168.000000");
-  test_to_double_one("1.234567891011121314E-9", "0.000000");
-  test_to_double_one("123456789", "123456789.000000");
-  test_to_double_one("-1,234567891011121314E123", "-1.000000");
-  test_to_double_one("123456789", "123456789", 0);
-  test_to_double_one("1.23456789", "1", 0);
-  test_to_double_one("1.23456789", "1.2", 1);
-  test_to_double_one("1.23456789", "1.23", 2);
-  test_to_double_one("1.23456789", "1.235", 3);
-  test_to_double_one("1.23456789", "1.2346", 4);
-  test_to_double_one("1.23456789", "1.23457", 5);
-  test_to_double_one("1.23456789", "1.234568", 6);
-  test_to_double_one("1.23456789", "1.2345679", 7);
-  test_to_double_one("1.23456789", "1.23456789", 8);
-  test_to_double_one("1.23456789", "1.234567890", 9);
-  test_to_double_one("1.23456789", "1.2345678900", 10);
-}
-
-TEST(Misc, to_double) {
-  test_to_double();
-  std::locale new_locale("C");
-  auto host_locale = std::locale::global(new_locale);
-  test_to_double();
-  new_locale = std::locale::global(std::locale::classic());
-  test_to_double();
-  auto classic_locale = std::locale::global(host_locale);
-  test_to_double();
-}
-
-TEST(Misc, print_int) {
-  ASSERT_STREQ("-9223372036854775808", PSLICE() << -9223372036854775807 - 1);
-  ASSERT_STREQ("-2147483649", PSLICE() << -2147483649ll);
-  ASSERT_STREQ("-2147483648", PSLICE() << -2147483647 - 1);
-  ASSERT_STREQ("-2147483647", PSLICE() << -2147483647);
-  ASSERT_STREQ("-123456789", PSLICE() << -123456789);
-  ASSERT_STREQ("-1", PSLICE() << -1);
-  ASSERT_STREQ("0", PSLICE() << 0);
-  ASSERT_STREQ("1", PSLICE() << 1);
-  ASSERT_STREQ("9", PSLICE() << 9);
-  ASSERT_STREQ("10", PSLICE() << 10);
-  ASSERT_STREQ("2147483647", PSLICE() << 2147483647);
-  ASSERT_STREQ("2147483648", PSLICE() << 2147483648ll);
-  ASSERT_STREQ("2147483649", PSLICE() << 2147483649ll);
-  ASSERT_STREQ("9223372036854775807", PSLICE() << 9223372036854775807ll);
-}
-
-TEST(Misc, print_uint) {
-  ASSERT_STREQ("0", PSLICE() << 0u);
-  ASSERT_STREQ("1", PSLICE() << 1u);
-  ASSERT_STREQ("9", PSLICE() << 9u);
-  ASSERT_STREQ("10", PSLICE() << 10u);
-  ASSERT_STREQ("2147483647", PSLICE() << 2147483647u);
-  ASSERT_STREQ("2147483648", PSLICE() << 2147483648u);
-  ASSERT_STREQ("2147483649", PSLICE() << 2147483649u);
-  ASSERT_STREQ("9223372036854775807", PSLICE() << 9223372036854775807u);
-}
-
-static void test_idn_to_ascii_one(const td::string &host, const td::string &result) {
-  if (result != td::idn_to_ascii(host).ok()) {
-    LOG(ERROR) << "Failed to convert " << host << " to " << result << ", receive \"" << td::idn_to_ascii(host).ok()
-               << "\"";
-  }
-}
-
-TEST(Misc, idn_to_ascii) {
-  test_idn_to_ascii_one("::::::::::::::::::::::::::::::::::::::@/", "::::::::::::::::::::::::::::::::::::::@/");
-  test_idn_to_ascii_one("", "");
-  test_idn_to_ascii_one("%30", "%30");
-  test_idn_to_ascii_one("127.0.0.1", "127.0.0.1");
-  test_idn_to_ascii_one("fe80::", "fe80::");
-  test_idn_to_ascii_one("fe80:0:0:0:200:f8ff:fe21:67cf", "fe80:0:0:0:200:f8ff:fe21:67cf");
-  test_idn_to_ascii_one("2001:0db8:11a3:09d7:1f34:8a2e:07a0:765d", "2001:0db8:11a3:09d7:1f34:8a2e:07a0:765d");
-  test_idn_to_ascii_one("::ffff:192.0.2.1", "::ffff:192.0.2.1");
-  test_idn_to_ascii_one("ABCDEF", "abcdef");
-  test_idn_to_ascii_one("abcdef", "abcdef");
-  test_idn_to_ascii_one("abæcdöef", "xn--abcdef-qua4k");
-  test_idn_to_ascii_one("schön", "xn--schn-7qa");
-  test_idn_to_ascii_one("ยจฆฟคฏข", "xn--22cdfh1b8fsa");
-  test_idn_to_ascii_one("☺", "xn--74h");
-  test_idn_to_ascii_one("правда", "xn--80aafi6cg");
-  test_idn_to_ascii_one("büücher", "xn--bcher-kvaa");
-  test_idn_to_ascii_one("BüüCHER", "xn--bcher-kvaa");
-  test_idn_to_ascii_one("bücüher", "xn--bcher-kvab");
-  test_idn_to_ascii_one("bücherü", "xn--bcher-kvae");
-  test_idn_to_ascii_one("ýbücher", "xn--bcher-kvaf");
-  test_idn_to_ascii_one("übücher", "xn--bcher-jvab");
-  test_idn_to_ascii_one("bücher.tld", "xn--bcher-kva.tld");
-  test_idn_to_ascii_one("кто.рф", "xn--j1ail.xn--p1ai");
-  test_idn_to_ascii_one("wіkіреdіа.org", "xn--wkd-8cdx9d7hbd.org");
-  test_idn_to_ascii_one("cnwin2k8中国.avol.com", "xn--cnwin2k8-sd0mx14e.avol.com");
-  test_idn_to_ascii_one("win-2k12r2-addc.阿伯测阿伯测ad.hai.com", "win-2k12r2-addc.xn--ad-tl3ca3569aba8944eca.hai.com");
-  test_idn_to_ascii_one("✌.ws", "xn--7bi.ws");
-  //  test_idn_to_ascii_one("✌️.ws", "xn--7bi.ws"); // needs nameprep to succeed
-  test_idn_to_ascii_one("⛧", "xn--59h");
-  test_idn_to_ascii_one("--рф.рф", "xn-----mmcq.xn--p1ai");
-  ASSERT_TRUE(td::idn_to_ascii("\xc0").is_error());
-}
-
-#if TD_WINDOWS
-static void test_to_wstring_one(const td::string &str) {
-  ASSERT_STREQ(str, td::from_wstring(td::to_wstring(str).ok()).ok());
-}
-
-TEST(Misc, to_wstring) {
-  test_to_wstring_one("");
-  for (int i = 0; i < 10; i++) {
-    test_to_wstring_one("test");
-    test_to_wstring_one("тест");
-  }
-  td::string str;
-  for (td::uint32 i = 0; i <= 0xD7FF; i++) {
-    td::append_utf8_character(str, i);
-  }
-  for (td::uint32 i = 0xE000; i <= 0x10FFFF; i++) {
-    td::append_utf8_character(str, i);
-  }
-  test_to_wstring_one(str);
-  ASSERT_TRUE(td::to_wstring("\xc0").is_error());
-  auto emoji = td::to_wstring("🏟").ok();
-  ASSERT_TRUE(td::from_wstring(emoji).ok() == "🏟");
-  ASSERT_TRUE(emoji.size() == 2);
-  auto emoji2 = emoji;
-  emoji[0] = emoji[1];
-  emoji2[1] = emoji2[0];
-  ASSERT_TRUE(td::from_wstring(emoji).is_error());
-  ASSERT_TRUE(td::from_wstring(emoji2).is_error());
-  emoji2[0] = emoji[0];
-  ASSERT_TRUE(td::from_wstring(emoji2).is_error());
-}
-#endif
-
-static void test_translit(const td::string &word, const td::vector<td::string> &result, bool allow_partial = true) {
-  ASSERT_EQ(result, td::get_word_transliterations(word, allow_partial));
-}
-
-TEST(Misc, translit) {
-  test_translit("word", {"word", "ворд"});
-  test_translit("", {});
-  test_translit("ььььььььь", {"ььььььььь"});
-  test_translit("крыло", {"krylo", "крыло"});
-  test_translit("krylo", {"krylo", "крило"});
-  test_translit("crylo", {"crylo", "крило"});
-  test_translit("cheiia", {"cheiia", "кхеииа", "чейия"});
-  test_translit("cheii", {"cheii", "кхеии", "чейи", "чейий", "чейия"});
-  test_translit("s", {"s", "с", "ш", "щ"});
-  test_translit("y", {"e", "y", "е", "и", "ю", "я"});
-  test_translit("j", {"e", "j", "е", "й", "ю", "я"});
-  test_translit("yo", {"e", "yo", "е", "ио"});
-  test_translit("artjom", {"artem", "artjom", "артем", "артйом"});
-  test_translit("artyom", {"artem", "artyom", "артем", "артиом"});
-  test_translit("arty", {"arte", "arty", "арте", "арти", "артю", "артя"});
-  test_translit("льи", {"li", "lia", "ly", "льи"});
-  test_translit("y", {"y", "и"}, false);
-  test_translit("yo", {"e", "yo", "е", "ио"}, false);
-}
-
-static void test_unicode(td::uint32 (*func)(td::uint32)) {
-  for (td::uint32 i = 0; i <= 0x110000; i++) {
-    auto res = func(i);
-    CHECK(res <= 0x10ffff);
-  }
-}
-
-TEST(Misc, unicode) {
-  test_unicode(td::prepare_search_character);
-  test_unicode(td::unicode_to_lower);
-  test_unicode(td::remove_diacritics);
-}
-
-TEST(Misc, get_unicode_simple_category) {
-  td::uint32 result = 0;
-  for (size_t t = 0; t < 100; t++) {
-    for (td::uint32 i = 0; i <= 0x10ffff; i++) {
-      result = result * 123 + static_cast<td::uint32>(static_cast<int>(td::get_unicode_simple_category(i)));
-    }
-  }
-  LOG(INFO) << result;
-}
-
-TEST(Misc, get_unicode_simple_category_small) {
-  td::uint32 result = 0;
-  for (size_t t = 0; t < 1000; t++) {
-    for (td::uint32 i = 0; i <= 0xffff; i++) {
-      result = result * 123 + static_cast<td::uint32>(static_cast<int>(td::get_unicode_simple_category(i)));
-    }
-  }
-  LOG(INFO) << result;
-}
-
-TEST(BigNum, from_decimal) {
-  ASSERT_TRUE(td::BigNum::from_decimal("").is_error());
-  ASSERT_TRUE(td::BigNum::from_decimal("a").is_error());
-  ASSERT_TRUE(td::BigNum::from_decimal("123a").is_error());
-  ASSERT_TRUE(td::BigNum::from_decimal("-123a").is_error());
-  // ASSERT_TRUE(td::BigNum::from_decimal("-").is_error());
-  ASSERT_TRUE(td::BigNum::from_decimal("123").is_ok());
-  ASSERT_TRUE(td::BigNum::from_decimal("-123").is_ok());
-  ASSERT_TRUE(td::BigNum::from_decimal("0").is_ok());
-  ASSERT_TRUE(td::BigNum::from_decimal("-0").is_ok());
-  ASSERT_TRUE(td::BigNum::from_decimal("-999999999999999999999999999999999999999999999999").is_ok());
-  ASSERT_TRUE(td::BigNum::from_decimal("999999999999999999999999999999999999999999999999").is_ok());
-}
-
-TEST(BigNum, from_binary) {
-  ASSERT_STREQ(td::BigNum::from_binary("").to_decimal(), "0");
-  ASSERT_STREQ(td::BigNum::from_binary("a").to_decimal(), "97");
-  ASSERT_STREQ(td::BigNum::from_binary("\x00\xff").to_decimal(), "255");
-  ASSERT_STREQ(td::BigNum::from_binary("\x00\x01\x00\x00").to_decimal(), "65536");
-  ASSERT_STREQ(td::BigNum::from_le_binary("").to_decimal(), "0");
-  ASSERT_STREQ(td::BigNum::from_le_binary("a").to_decimal(), "97");
-  ASSERT_STREQ(td::BigNum::from_le_binary("\x00\xff").to_decimal(), "65280");
-  ASSERT_STREQ(td::BigNum::from_le_binary("\x00\x01\x00\x00").to_decimal(), "256");
-  ASSERT_STREQ(td::BigNum::from_decimal("255").move_as_ok().to_binary(), "\xff");
-  ASSERT_STREQ(td::BigNum::from_decimal("255").move_as_ok().to_le_binary(), "\xff");
-  ASSERT_STREQ(td::BigNum::from_decimal("255").move_as_ok().to_binary(2), "\x00\xff");
-  ASSERT_STREQ(td::BigNum::from_decimal("255").move_as_ok().to_le_binary(2), "\xff\x00");
-  ASSERT_STREQ(td::BigNum::from_decimal("65280").move_as_ok().to_binary(), "\xff\x00");
-  ASSERT_STREQ(td::BigNum::from_decimal("65280").move_as_ok().to_le_binary(), "\x00\xff");
-  ASSERT_STREQ(td::BigNum::from_decimal("65280").move_as_ok().to_binary(2), "\xff\x00");
-  ASSERT_STREQ(td::BigNum::from_decimal("65280").move_as_ok().to_le_binary(2), "\x00\xff");
-  ASSERT_STREQ(td::BigNum::from_decimal("65536").move_as_ok().to_binary(), "\x01\x00\x00");
-  ASSERT_STREQ(td::BigNum::from_decimal("65536").move_as_ok().to_le_binary(), "\x00\x00\x01");
-  ASSERT_STREQ(td::BigNum::from_decimal("65536").move_as_ok().to_binary(4), "\x00\x01\x00\x00");
-  ASSERT_STREQ(td::BigNum::from_decimal("65536").move_as_ok().to_le_binary(4), "\x00\x00\x01\x00");
-}
-
-static void test_get_ipv4(td::uint32 ip) {
-  td::IPAddress ip_address;
-  ip_address.init_ipv4_port(td::IPAddress::ipv4_to_str(ip), 80).ensure();
-  ASSERT_EQ(ip_address.get_ipv4(), ip);
-}
-
-TEST(Misc, IPAddress_get_ipv4) {
-  test_get_ipv4(0x00000000);
-  test_get_ipv4(0x010000FF);
-  test_get_ipv4(0xFF000001);
-  test_get_ipv4(0x01020304);
-  test_get_ipv4(0x04030201);
-  test_get_ipv4(0xFFFFFFFF);
-}
-
-static void test_is_reserved(const td::string &ip, bool is_reserved) {
-  td::IPAddress ip_address;
-  ip_address.init_ipv4_port(ip, 80).ensure();
-  ASSERT_EQ(is_reserved, ip_address.is_reserved());
-}
-
-TEST(Misc, IPAddress_is_reserved) {
-  test_is_reserved("0.0.0.0", true);
-  test_is_reserved("0.255.255.255", true);
-  test_is_reserved("1.0.0.0", false);
-  test_is_reserved("5.0.0.0", false);
-  test_is_reserved("9.255.255.255", false);
-  test_is_reserved("10.0.0.0", true);
-  test_is_reserved("10.255.255.255", true);
-  test_is_reserved("11.0.0.0", false);
-  test_is_reserved("100.63.255.255", false);
-  test_is_reserved("100.64.0.0", true);
-  test_is_reserved("100.127.255.255", true);
-  test_is_reserved("100.128.0.0", false);
-  test_is_reserved("126.255.255.255", false);
-  test_is_reserved("127.0.0.0", true);
-  test_is_reserved("127.255.255.255", true);
-  test_is_reserved("128.0.0.0", false);
-  test_is_reserved("169.253.255.255", false);
-  test_is_reserved("169.254.0.0", true);
-  test_is_reserved("169.254.255.255", true);
-  test_is_reserved("169.255.0.0", false);
-  test_is_reserved("172.15.255.255", false);
-  test_is_reserved("172.16.0.0", true);
-  test_is_reserved("172.31.255.255", true);
-  test_is_reserved("172.32.0.0", false);
-  test_is_reserved("191.255.255.255", false);
-  test_is_reserved("192.0.0.0", true);
-  test_is_reserved("192.0.0.255", true);
-  test_is_reserved("192.0.1.0", false);
-  test_is_reserved("192.0.1.255", false);
-  test_is_reserved("192.0.2.0", true);
-  test_is_reserved("192.0.2.255", true);
-  test_is_reserved("192.0.3.0", false);
-  test_is_reserved("192.88.98.255", false);
-  test_is_reserved("192.88.99.0", true);
-  test_is_reserved("192.88.99.255", true);
-  test_is_reserved("192.88.100.0", false);
-  test_is_reserved("192.167.255.255", false);
-  test_is_reserved("192.168.0.0", true);
-  test_is_reserved("192.168.255.255", true);
-  test_is_reserved("192.169.0.0", false);
-  test_is_reserved("198.17.255.255", false);
-  test_is_reserved("198.18.0.0", true);
-  test_is_reserved("198.19.255.255", true);
-  test_is_reserved("198.20.0.0", false);
-  test_is_reserved("198.51.99.255", false);
-  test_is_reserved("198.51.100.0", true);
-  test_is_reserved("198.51.100.255", true);
-  test_is_reserved("198.51.101.0", false);
-  test_is_reserved("203.0.112.255", false);
-  test_is_reserved("203.0.113.0", true);
-  test_is_reserved("203.0.113.255", true);
-  test_is_reserved("203.0.114.0", false);
-  test_is_reserved("223.255.255.255", false);
-  test_is_reserved("224.0.0.0", true);
-  test_is_reserved("239.255.255.255", true);
-  test_is_reserved("240.0.0.0", true);
-  test_is_reserved("255.255.255.254", true);
-  test_is_reserved("255.255.255.255", true);
-}
-
-TEST(Misc, ipv6_clear) {
-  td::IPAddress ip_address;
-  ip_address.init_host_port("2001:0db8:85a3:0000:0000:8a2e:0370:7334", 123).ensure();
-  ASSERT_EQ("2001:db8:85a3::8a2e:370:7334", ip_address.get_ip_str());
-  ip_address.clear_ipv6_interface();
-  ASSERT_EQ("2001:db8:85a3::", ip_address.get_ip_str());
-}
-
-static void test_split(td::Slice str, std::pair<td::Slice, td::Slice> expected) {
-  ASSERT_EQ(expected, td::split(str));
-}
-
-TEST(Misc, split) {
-  test_split("", {"", ""});
-  test_split(" ", {"", ""});
-  test_split("abcdef", {"abcdef", ""});
-  test_split("abc def", {"abc", "def"});
-  test_split("a bcdef", {"a", "bcdef"});
-  test_split(" abcdef", {"", "abcdef"});
-  test_split("abcdef ", {"abcdef", ""});
-  test_split("ab cd ef", {"ab", "cd ef"});
-  test_split("ab cdef ", {"ab", "cdef "});
-  test_split(" abcd ef", {"", "abcd ef"});
-  test_split(" abcdef ", {"", "abcdef "});
-}
-
-static void test_full_split(td::Slice str, const td::vector<td::Slice> &expected) {
-  ASSERT_EQ(expected, td::full_split(str));
-}
-
-static void test_full_split(td::Slice str, char c, std::size_t max_parts, const td::vector<td::Slice> &expected) {
-  ASSERT_EQ(expected, td::full_split(str, c, max_parts));
-}
-
-TEST(Misc, full_split) {
-  test_full_split("", {});
-  test_full_split(" ", {"", ""});
-  test_full_split("  ", {"", "", ""});
-  test_full_split("abcdef", {"abcdef"});
-  test_full_split("abc def", {"abc", "def"});
-  test_full_split("a bcdef", {"a", "bcdef"});
-  test_full_split(" abcdef", {"", "abcdef"});
-  test_full_split("abcdef ", {"abcdef", ""});
-  test_full_split("ab cd ef", {"ab", "cd", "ef"});
-  test_full_split("ab cdef ", {"ab", "cdef", ""});
-  test_full_split(" abcd ef", {"", "abcd", "ef"});
-  test_full_split(" abcdef ", {"", "abcdef", ""});
-  test_full_split(" ab cd ef ", {"", "ab", "cd", "ef", ""});
-  test_full_split("  ab  cd  ef  ", {"", "", "ab", "", "cd", "", "ef", "", ""});
-  test_full_split("ab cd ef gh", ' ', 3, {"ab", "cd", "ef gh"});
-}
-
-TEST(Misc, StringBuilder) {
-  auto small_str = td::string{"abcdefghij"};
-  auto big_str = td::string(1000, 'a');
-  using V = td::vector<td::string>;
-  for (auto use_buf : {false, true}) {
-    for (std::size_t initial_buffer_size : {0, 1, 5, 10, 100, 1000, 2000}) {
-      for (const auto &test :
-           {V{small_str}, V{small_str, big_str, big_str, small_str}, V{big_str, small_str, big_str}}) {
-        td::string buf(initial_buffer_size, '\0');
-        td::StringBuilder sb(buf, use_buf);
-        td::string res;
-        for (const auto &x : test) {
-          res += x;
-          sb << x;
-        }
-        if (use_buf) {
-          ASSERT_EQ(res, sb.as_cslice());
-        } else {
-          auto sb_result = sb.as_cslice();
-          res.resize(sb_result.size());
-          ASSERT_EQ(res, sb_result);
-        }
-      }
-    }
-  }
-}
-
-TEST(Misc, As) {
-  char buf[100];
-  td::as<int>(buf) = 123;
-  ASSERT_EQ(123, td::as<int>(static_cast<const char *>(buf)));
-  ASSERT_EQ(123, td::as<int>(static_cast<char *>(buf)));
-  char buf2[100];
-  td::as<int>(buf2) = td::as<int>(buf);
-  ASSERT_EQ(123, td::as<int>(static_cast<const char *>(buf2)));
-  ASSERT_EQ(123, td::as<int>(static_cast<char *>(buf2)));
-}
-
-TEST(Misc, Regression) {
-  td::string name = "regression_db";
-  td::RegressionTester::destroy(name);
-
-  {
-    auto tester = td::RegressionTester::create(name);
-    tester->save_db();
-    tester->verify_test("one_plus_one", "two").ensure();
-    tester->verify_test("one_plus_one", "two").ensure();
-    tester->verify_test("two_plus_one", "three").ensure();
-    tester->verify_test("one_plus_one", "two").ensure();
-    tester->verify_test("two_plus_one", "three").ensure();
-    tester->save_db();
-  }
-  {
-    auto tester = td::RegressionTester::create(name);
-    tester->save_db();
-    tester->verify_test("one_plus_one", "two").ensure();
-    tester->verify_test("one_plus_one", "two").ensure();
-    tester->verify_test("two_plus_one", "three").ensure();
-    tester->verify_test("one_plus_one", "two").ensure();
-    tester->verify_test("two_plus_one", "three").ensure();
-    tester->save_db();
-    tester->verify_test("one_plus_one", "three").ensure_error();
-    tester->verify_test("two_plus_one", "two").ensure_error();
-  }
-  {
-    auto tester = td::RegressionTester::create(name);
-    tester->verify_test("one_plus_one", "three").ensure_error();
-    tester->verify_test("two_plus_one", "two").ensure_error();
-  }
-}
-
-TEST(Misc, Bits) {
-  ASSERT_EQ(32, td::count_leading_zeroes32(0));
-  ASSERT_EQ(64, td::count_leading_zeroes64(0));
-  ASSERT_EQ(32, td::count_trailing_zeroes32(0));
-  ASSERT_EQ(64, td::count_trailing_zeroes64(0));
-
-  for (int i = 0; i < 32; i++) {
-    ASSERT_EQ(31 - i, td::count_leading_zeroes32(1u << i));
-    ASSERT_EQ(i, td::count_trailing_zeroes32(1u << i));
-    ASSERT_EQ(31 - i, td::count_leading_zeroes_non_zero32(1u << i));
-    ASSERT_EQ(i, td::count_trailing_zeroes_non_zero32(1u << i));
-  }
-  for (int i = 0; i < 64; i++) {
-    ASSERT_EQ(63 - i, td::count_leading_zeroes64(1ull << i));
-    ASSERT_EQ(i, td::count_trailing_zeroes64(1ull << i));
-    ASSERT_EQ(63 - i, td::count_leading_zeroes_non_zero64(1ull << i));
-    ASSERT_EQ(i, td::count_trailing_zeroes_non_zero64(1ull << i));
-  }
-
-  ASSERT_EQ(0x12345678u, td::bswap32(0x78563412u));
-  ASSERT_EQ(0x12345678abcdef67ull, td::bswap64(0x67efcdab78563412ull));
-
-  td::uint8 buf[8] = {1, 90, 2, 18, 129, 255, 0, 2};
-  td::uint64 num2 = td::bswap64(td::as<td::uint64>(buf));
-  td::uint64 num = (static_cast<td::uint64>(buf[0]) << 56) | (static_cast<td::uint64>(buf[1]) << 48) |
-                   (static_cast<td::uint64>(buf[2]) << 40) | (static_cast<td::uint64>(buf[3]) << 32) |
-                   (static_cast<td::uint64>(buf[4]) << 24) | (static_cast<td::uint64>(buf[5]) << 16) |
-                   (static_cast<td::uint64>(buf[6]) << 8) | (static_cast<td::uint64>(buf[7]));
-  ASSERT_EQ(num, num2);
-
-  ASSERT_EQ(0, td::count_bits32(0));
-  ASSERT_EQ(0, td::count_bits64(0));
-  ASSERT_EQ(4, td::count_bits32((1u << 31) | 7));
-  ASSERT_EQ(4, td::count_bits64((1ull << 63) | 7));
-}
-
-TEST(Misc, BitsRange) {
-  auto to_vec_a = [](td::uint64 x) {
-    td::vector<td::int32> bits;
-    for (auto i : td::BitsRange(x)) {
-      bits.push_back(i);
-    }
-    return bits;
-  };
-
-  auto to_vec_b = [](td::uint64 x) {
-    td::vector<td::int32> bits;
-    td::int32 pos = 0;
-    while (x != 0) {
-      if ((x & 1) != 0) {
-        bits.push_back(pos);
-      }
-      x >>= 1;
-      pos++;
-    }
-    return bits;
-  };
-
-  auto do_check = [](const td::vector<td::int32> &a, const td::vector<td::int32> &b) {
-    ASSERT_EQ(b, a);
-  };
-  auto check = [&](td::uint64 x) {
-    do_check(to_vec_a(x), to_vec_b(x));
-  };
-
-  do_check(to_vec_a(21), {0, 2, 4});
-  for (int x = 0; x < 100; x++) {
-    check(x);
-    check(std::numeric_limits<td::uint32>::max() - x);
-    check(std::numeric_limits<td::uint64>::max() - x);
-  }
-}
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(Misc, Time) {
-  td::Stage run;
-  td::Stage check;
-  td::Stage finish;
-
-  std::size_t threads_n = 3;
-  td::vector<td::thread> threads;
-  td::vector<std::atomic<double>> ts(threads_n);
-  for (std::size_t i = 0; i < threads_n; i++) {
-    threads.emplace_back([&, thread_id = i] {
-      for (td::uint64 round = 1; round < 10000; round++) {
-        ts[thread_id] = 0;
-        run.wait(round * threads_n);
-        ts[thread_id] = td::Time::now();
-        check.wait(round * threads_n);
-        for (auto &ts_ref : ts) {
-          auto other_ts = ts_ref.load();
-          if (other_ts != 0) {
-            ASSERT_TRUE(other_ts <= td::Time::now_cached());
-          }
-        }
-
-        finish.wait(round * threads_n);
-      }
-    });
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-}
-#endif
-
-TEST(Misc, uint128) {
-  td::vector<td::uint64> parts = {0,
-                                  1,
-                                  2000,
-                                  2001,
-                                  std::numeric_limits<td::uint64>::max(),
-                                  std::numeric_limits<td::uint64>::max() - 1,
-                                  std::numeric_limits<td::uint32>::max(),
-                                  static_cast<td::uint64>(std::numeric_limits<td::uint32>::max()) + 1};
-  td::vector<td::int64> signed_parts = {0,
-                                        1,
-                                        2000,
-                                        2001,
-                                        -1,
-                                        -2000,
-                                        -2001,
-                                        std::numeric_limits<td::int64>::max(),
-                                        std::numeric_limits<td::int64>::max() - 1,
-                                        std::numeric_limits<td::int64>::min(),
-                                        std::numeric_limits<td::int64>::min() + 1,
-                                        std::numeric_limits<td::int32>::max(),
-                                        static_cast<td::int64>(std::numeric_limits<td::int32>::max()) + 1,
-                                        std::numeric_limits<td::int32>::max() - 1,
-                                        std::numeric_limits<td::int32>::min(),
-                                        std::numeric_limits<td::int32>::min() + 1,
-                                        static_cast<td::int64>(std::numeric_limits<td::int32>::min()) - 1};
-
-#if TD_HAVE_INT128
-  auto to_intrinsic = [](td::uint128_emulated num) {
-    return td::uint128_intrinsic(num.hi(), num.lo());
-  };
-  auto eq = [](td::uint128_emulated a, td::uint128_intrinsic b) {
-    return a.hi() == b.hi() && a.lo() == b.lo();
-  };
-  auto ensure_eq = [&](td::uint128_emulated a, td::uint128_intrinsic b) {
-    if (!eq(a, b)) {
-      LOG(FATAL) << "[" << a.hi() << ";" << a.lo() << "] vs [" << b.hi() << ";" << b.lo() << "]";
-    }
-  };
-#endif
-
-  td::vector<td::uint128_emulated> nums;
-  for (auto hi : parts) {
-    for (auto lo : parts) {
-      auto a = td::uint128_emulated(hi, lo);
-#if TD_HAVE_INT128
-      auto ia = td::uint128_intrinsic(hi, lo);
-      ensure_eq(a, ia);
-#endif
-      nums.push_back(a);
-      nums.pop_back();
-      nums.push_back({hi, lo});
-    }
-  }
-
-#if TD_HAVE_INT128
-  for (auto a : nums) {
-    auto ia = to_intrinsic(a);
-    ensure_eq(a, ia);
-    CHECK(a.is_zero() == ia.is_zero());
-    for (int i = 0; i <= 130; i++) {
-      ensure_eq(a.shl(i), ia.shl(i));
-      ensure_eq(a.shr(i), ia.shr(i));
-    }
-    for (auto b : parts) {
-      ensure_eq(a.mult(b), ia.mult(b));
-    }
-    for (auto b : signed_parts) {
-      ensure_eq(a.mult_signed(b), ia.mult_signed(b));
-      if (b == 0) {
-        continue;
-      }
-      td::int64 q;
-      td::int64 r;
-      a.divmod_signed(b, &q, &r);
-      td::int64 iq;
-      td::int64 ir;
-      ia.divmod_signed(b, &iq, &ir);
-      ASSERT_EQ(q, iq);
-      ASSERT_EQ(r, ir);
-    }
-    for (auto b : nums) {
-      auto ib = to_intrinsic(b);
-      //LOG(ERROR) << ia.hi() << ";" << ia.lo() << " " << ib.hi() << ";" << ib.lo();
-      ensure_eq(a.mult(b), ia.mult(ib));
-      ensure_eq(a.add(b), ia.add(ib));
-      ensure_eq(a.sub(b), ia.sub(ib));
-      if (!b.is_zero()) {
-        ensure_eq(a.div(b), ia.div(ib));
-        ensure_eq(a.mod(b), ia.mod(ib));
-      }
-    }
-  }
-
-  for (auto signed_part : signed_parts) {
-    auto a = td::uint128_emulated::from_signed(signed_part);
-    auto ia = td::uint128_intrinsic::from_signed(signed_part);
-    ensure_eq(a, ia);
-  }
-#endif
-}
-
-template <template <class T> class HashT, class ValueT>
-static td::Status test_hash(const td::vector<ValueT> &values) {
-  for (std::size_t i = 0; i < values.size(); i++) {
-    for (std::size_t j = i; j < values.size(); j++) {
-      auto &a = values[i];
-      auto &b = values[j];
-      auto a_hash = HashT<ValueT>()(a);
-      auto b_hash = HashT<ValueT>()(b);
-      if (a == b) {
-        if (a_hash != b_hash) {
-          return td::Status::Error("Hash differs for same values");
-        }
-      } else {
-        if (a_hash == b_hash) {
-          return td::Status::Error("Hash is the same for different values");
-        }
-      }
-    }
-  }
-  return td::Status::OK();
-}
-
-class BadValue {
- public:
-  explicit BadValue(std::size_t value) : value_(value) {
-  }
-
-  template <class H>
-  friend H AbslHashValue(H hasher, const BadValue &value) {
-    return hasher;
-  }
-  bool operator==(const BadValue &other) const {
-    return value_ == other.value_;
-  }
-
- private:
-  std::size_t value_;
-};
-
-class ValueA {
- public:
-  explicit ValueA(std::size_t value) : value_(value) {
-  }
-  template <class H>
-  friend H AbslHashValue(H hasher, ValueA value) {
-    return H::combine(std::move(hasher), value.value_);
-  }
-  bool operator==(const ValueA &other) const {
-    return value_ == other.value_;
-  }
-
- private:
-  std::size_t value_;
-};
-
-class ValueB {
- public:
-  explicit ValueB(std::size_t value) : value_(value) {
-  }
-
-  template <class H>
-  friend H AbslHashValue(H hasher, ValueB value) {
-    return H::combine(std::move(hasher), value.value_);
-  }
-  bool operator==(const ValueB &other) const {
-    return value_ == other.value_;
-  }
-
- private:
-  std::size_t value_;
-};
-
-template <template <class T> class HashT>
-static void test_hash() {
-  // Just check that the following compiles
-  AbslHashValue(td::Hasher(), ValueA{1});
-  HashT<ValueA>()(ValueA{1});
-  std::unordered_map<ValueA, int, HashT<ValueA>> s;
-  s[ValueA{1}] = 1;
-  td::HashMap<ValueA, int> su;
-  su[ValueA{1}] = 1;
-  td::HashSet<ValueA> su2;
-  su2.insert(ValueA{1});
-#if TD_HAVE_ABSL
-  std::unordered_map<ValueA, int, absl::Hash<ValueA>> x;
-  absl::flat_hash_map<ValueA, int, HashT<ValueA>> sa;
-  sa[ValueA{1}] = 1;
-#endif
-
-  test_hash<HashT, std::size_t>({1, 2, 3, 4, 5}).ensure();
-  test_hash<HashT, BadValue>({BadValue{1}, BadValue{2}}).ensure_error();
-  test_hash<HashT, ValueA>({ValueA{1}, ValueA{2}}).ensure();
-  test_hash<HashT, ValueB>({ValueB{1}, ValueB{2}}).ensure();
-  test_hash<HashT, std::pair<int, int>>({{1, 1}, {1, 2}}).ensure();
-  // FIXME: use some better hash
-  //test_hash<HashT, std::pair<int, int>>({{1, 1}, {1, 2}, {2, 1}, {2, 2}}).ensure();
-}
-
-TEST(Misc, Hasher) {
-  test_hash<td::TdHash>();
-#if TD_HAVE_ABSL
-  test_hash<td::AbslHash>();
-#endif
-}
-
-TEST(Misc, CancellationToken) {
-  td::CancellationTokenSource source;
-  source.cancel();
-  auto token1 = source.get_cancellation_token();
-  auto token2 = source.get_cancellation_token();
-  CHECK(!token1);
-  source.cancel();
-  CHECK(token1);
-  CHECK(token2);
-  auto token3 = source.get_cancellation_token();
-  CHECK(!token3);
-  source.cancel();
-  CHECK(token3);
-
-  auto token4 = source.get_cancellation_token();
-  CHECK(!token4);
-  source = td::CancellationTokenSource{};
-  CHECK(token4);
-}
-
-TEST(Misc, Xorshift128plus) {
-  td::Random::Xorshift128plus rnd(123);
-  ASSERT_EQ(11453256657207062272ull, rnd());
-  ASSERT_EQ(14917490455889357332ull, rnd());
-  ASSERT_EQ(5645917797309401285ull, rnd());
-  ASSERT_EQ(13554822455746959330ull, rnd());
-}
-
-TEST(Misc, uname) {
-  auto first_version = td::get_operating_system_version();
-  auto second_version = td::get_operating_system_version();
-  ASSERT_STREQ(first_version, second_version);
-  ASSERT_EQ(first_version.begin(), second_version.begin());
-  ASSERT_TRUE(!first_version.empty());
-}
-
-TEST(Misc, serialize) {
-  td::int32 x = 1;
-  ASSERT_EQ(td::base64_encode(td::serialize(x)), td::base64_encode(td::string("\x01\x00\x00\x00", 4)));
-  td::int64 y = -2;
-  ASSERT_EQ(td::base64_encode(td::serialize(y)), td::base64_encode(td::string("\xfe\xff\xff\xff\xff\xff\xff\xff", 8)));
-}
-
-TEST(Misc, check_reset_guard) {
-  CheckExitGuard check_exit_guard{false};
-}
-
-TEST(FloodControl, Fast) {
-  td::FloodControlFast fc;
-  fc.add_limit(1, 5);
-  fc.add_limit(5, 10);
-
-  td::int32 count = 0;
-  double now = 0;
-  for (int i = 0; i < 100; i++) {
-    now = fc.get_wakeup_at();
-    fc.add_event(now);
-    LOG(INFO) << ++count << ": " << now;
-  }
-}
-
-TEST(UniqueValuePtr, Basic) {
-  auto a = td::make_unique_value<int>(5);
-  td::unique_value_ptr<int> b;
-  ASSERT_TRUE(b == nullptr);
-  ASSERT_TRUE(a != nullptr);
-  ASSERT_TRUE(a != b);
-  b = a;
-  ASSERT_TRUE(a != nullptr);
-  ASSERT_TRUE(b != nullptr);
-  ASSERT_TRUE(a == b);
-  *a = 6;
-  ASSERT_TRUE(a != nullptr);
-  ASSERT_TRUE(b != nullptr);
-  ASSERT_TRUE(a != b);
-  b = std::move(a);
-  ASSERT_TRUE(a == nullptr);
-  ASSERT_TRUE(b != nullptr);
-  ASSERT_TRUE(a != b);
-  auto c = td::make_unique_value<td::unique_value_ptr<int>>(a);
-  ASSERT_TRUE(*c == a);
-  ASSERT_TRUE(*c == nullptr);
-  c = td::make_unique_value<td::unique_value_ptr<int>>(b);
-  ASSERT_TRUE(*c == b);
-  ASSERT_TRUE(**c == 6);
-  auto d = c;
-  ASSERT_TRUE(c == d);
-  ASSERT_TRUE(6 == **d);
-}
diff --git a/third-party/td/td/tdutils/test/port.cpp b/third-party/td/td/tdutils/test/port.cpp
deleted file mode 100644
index 4c9a841aeb..0000000000
--- a/third-party/td/td/tdutils/test/port.cpp
+++ /dev/null
@@ -1,326 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/EventFd.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/IoSlice.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/signals.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/port/Stat.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Random.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/Time.h"
-
-#if TD_PORT_POSIX && !TD_THREAD_UNSUPPORTED
-#include <algorithm>
-#include <atomic>
-#include <mutex>
-
-#include <pthread.h>
-#include <signal.h>
-#endif
-
-TEST(Port, files) {
-  td::CSlice main_dir = "test_dir";
-  td::rmrf(main_dir).ignore();
-  ASSERT_TRUE(td::FileFd::open(main_dir, td::FileFd::Write).is_error());
-  ASSERT_TRUE(td::walk_path(main_dir, [](td::CSlice name, td::WalkPath::Type type) { UNREACHABLE(); }).is_error());
-  td::mkdir(main_dir).ensure();
-  td::mkdir(PSLICE() << main_dir << TD_DIR_SLASH << "A").ensure();
-  td::mkdir(PSLICE() << main_dir << TD_DIR_SLASH << "B").ensure();
-  td::mkdir(PSLICE() << main_dir << TD_DIR_SLASH << "B" << TD_DIR_SLASH << "D").ensure();
-  td::mkdir(PSLICE() << main_dir << TD_DIR_SLASH << "C").ensure();
-  ASSERT_TRUE(td::FileFd::open(main_dir, td::FileFd::Write).is_error());
-  td::string fd_path = PSTRING() << main_dir << TD_DIR_SLASH << "t.txt";
-  td::string fd2_path = PSTRING() << main_dir << TD_DIR_SLASH << "C" << TD_DIR_SLASH << "t2.txt";
-
-  auto fd = td::FileFd::open(fd_path, td::FileFd::Write | td::FileFd::CreateNew).move_as_ok();
-  auto fd2 = td::FileFd::open(fd2_path, td::FileFd::Write | td::FileFd::CreateNew).move_as_ok();
-  fd2.close();
-
-  int cnt = 0;
-  const int ITER_COUNT = 1000;
-  for (int i = 0; i < ITER_COUNT; i++) {
-    td::walk_path(main_dir, [&](td::CSlice name, td::WalkPath::Type type) {
-      if (type == td::WalkPath::Type::RegularFile) {
-        ASSERT_TRUE(name == fd_path || name == fd2_path);
-      }
-      cnt++;
-    }).ensure();
-  }
-  ASSERT_EQ((5 * 2 + 2) * ITER_COUNT, cnt);
-  bool was_abort = false;
-  td::walk_path(main_dir, [&](td::CSlice name, td::WalkPath::Type type) {
-    CHECK(!was_abort);
-    if (type == td::WalkPath::Type::EnterDir && ends_with(name, PSLICE() << TD_DIR_SLASH << "B")) {
-      was_abort = true;
-      return td::WalkPath::Action::Abort;
-    }
-    return td::WalkPath::Action::Continue;
-  }).ensure();
-  CHECK(was_abort);
-
-  cnt = 0;
-  bool is_first_dir = true;
-  td::walk_path(main_dir, [&](td::CSlice name, td::WalkPath::Type type) {
-    cnt++;
-    if (type == td::WalkPath::Type::EnterDir) {
-      if (is_first_dir) {
-        is_first_dir = false;
-      } else {
-        return td::WalkPath::Action::SkipDir;
-      }
-    }
-    return td::WalkPath::Action::Continue;
-  }).ensure();
-  ASSERT_EQ(6, cnt);
-
-  ASSERT_EQ(0u, fd.get_size().move_as_ok());
-  ASSERT_EQ(12u, fd.write("Hello world!").move_as_ok());
-  ASSERT_EQ(4u, fd.pwrite("abcd", 1).move_as_ok());
-  char buf[100];
-  td::MutableSlice buf_slice(buf, sizeof(buf));
-  ASSERT_TRUE(fd.pread(buf_slice.substr(0, 4), 2).is_error());
-  fd.seek(11).ensure();
-  ASSERT_EQ(2u, fd.write("?!").move_as_ok());
-
-  ASSERT_TRUE(td::FileFd::open(main_dir, td::FileFd::Read | td::FileFd::CreateNew).is_error());
-  fd = td::FileFd::open(fd_path, td::FileFd::Read | td::FileFd::Create).move_as_ok();
-  ASSERT_EQ(13u, fd.get_size().move_as_ok());
-  ASSERT_EQ(4u, fd.pread(buf_slice.substr(0, 4), 1).move_as_ok());
-  ASSERT_STREQ("abcd", buf_slice.substr(0, 4));
-
-  fd.seek(0).ensure();
-  ASSERT_EQ(13u, fd.read(buf_slice.substr(0, 13)).move_as_ok());
-  ASSERT_STREQ("Habcd world?!", buf_slice.substr(0, 13));
-  td::rmrf(main_dir).ensure();
-}
-
-TEST(Port, SparseFiles) {
-  td::CSlice path = "sparse.txt";
-  td::unlink(path).ignore();
-  auto fd = td::FileFd::open(path, td::FileFd::Write | td::FileFd::CreateNew).move_as_ok();
-  ASSERT_EQ(0, fd.get_size().move_as_ok());
-  td::int64 offset = 100000000;
-  fd.pwrite("a", offset).ensure();
-  ASSERT_EQ(offset + 1, fd.get_size().move_as_ok());
-  auto real_size = fd.get_real_size().move_as_ok();
-  if (real_size >= offset + 1) {
-    LOG(ERROR) << "File system doesn't support sparse files, rewind during streaming can be slow";
-  }
-  td::unlink(path).ensure();
-}
-
-TEST(Port, LargeFiles) {
-  td::CSlice path = "large.txt";
-  td::unlink(path).ignore();
-  auto fd = td::FileFd::open(path, td::FileFd::Write | td::FileFd::CreateNew).move_as_ok();
-  ASSERT_EQ(0, fd.get_size().move_as_ok());
-  td::int64 offset = static_cast<td::int64>(3) << 30;
-  if (fd.pwrite("abcd", offset).is_error()) {
-    LOG(ERROR) << "Writing to large files isn't supported";
-    td::unlink(path).ensure();
-    return;
-  }
-  fd = td::FileFd::open(path, td::FileFd::Read).move_as_ok();
-  ASSERT_EQ(offset + 4, fd.get_size().move_as_ok());
-  td::string res(4, '\0');
-  if (fd.pread(res, offset).is_error()) {
-    LOG(ERROR) << "Reading of large files isn't supported";
-    td::unlink(path).ensure();
-    return;
-  }
-  ASSERT_STREQ(res, "abcd");
-  fd.close();
-  td::unlink(path).ensure();
-}
-
-TEST(Port, Writev) {
-  td::vector<td::IoSlice> vec;
-  td::CSlice test_file_path = "test.txt";
-  td::unlink(test_file_path).ignore();
-  auto fd = td::FileFd::open(test_file_path, td::FileFd::Write | td::FileFd::CreateNew).move_as_ok();
-  vec.push_back(td::as_io_slice("a"));
-  vec.push_back(td::as_io_slice("b"));
-  vec.push_back(td::as_io_slice("cd"));
-  ASSERT_EQ(4u, fd.writev(vec).move_as_ok());
-  vec.clear();
-  vec.push_back(td::as_io_slice("efg"));
-  vec.push_back(td::as_io_slice(""));
-  vec.push_back(td::as_io_slice("hi"));
-  ASSERT_EQ(5u, fd.writev(vec).move_as_ok());
-  fd.close();
-  fd = td::FileFd::open(test_file_path, td::FileFd::Read).move_as_ok();
-  td::Slice expected_content = "abcdefghi";
-  ASSERT_EQ(static_cast<td::int64>(expected_content.size()), fd.get_size().ok());
-  td::string content(expected_content.size(), '\0');
-  ASSERT_EQ(content.size(), fd.read(content).move_as_ok());
-  ASSERT_EQ(expected_content, content);
-
-  auto stat = td::stat(test_file_path).move_as_ok();
-  CHECK(!stat.is_dir_);
-  CHECK(stat.is_reg_);
-  CHECK(!stat.is_symbolic_link_);
-  CHECK(stat.size_ == static_cast<td::int64>(expected_content.size()));
-
-  td::unlink(test_file_path).ignore();
-}
-
-#if TD_PORT_POSIX && !TD_THREAD_UNSUPPORTED
-
-static std::mutex m;
-static td::vector<td::string> ptrs;
-static td::vector<int *> addrs;
-static TD_THREAD_LOCAL int thread_id;
-
-static void on_user_signal(int sig) {
-  int addr;
-  addrs[thread_id] = &addr;
-  std::unique_lock<std::mutex> guard(m);
-  ptrs.push_back(td::to_string(thread_id));
-}
-
-TEST(Port, SignalsAndThread) {
-  td::setup_signals_alt_stack().ensure();
-  td::set_signal_handler(td::SignalType::User, on_user_signal).ensure();
-  SCOPE_EXIT {
-    td::set_signal_handler(td::SignalType::User, nullptr).ensure();
-  };
-  td::vector<td::string> ans = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"};
-  {
-    td::vector<td::thread> threads;
-    int thread_n = 10;
-    td::vector<td::Stage> stages(thread_n);
-    ptrs.clear();
-    addrs.resize(thread_n);
-    for (int i = 0; i < 10; i++) {
-      threads.emplace_back([&, i] {
-        td::setup_signals_alt_stack().ensure();
-        if (i != 0) {
-          stages[i].wait(2);
-        }
-        thread_id = i;
-        pthread_kill(pthread_self(), SIGUSR1);
-        if (i + 1 < thread_n) {
-          stages[i + 1].wait(2);
-        }
-      });
-    }
-    for (auto &t : threads) {
-      t.join();
-    }
-    CHECK(ptrs == ans);
-
-    //LOG(ERROR) << ptrs;
-    //LOG(ERROR) << addrs;
-  }
-
-  {
-    td::Stage stage;
-    td::vector<td::thread> threads;
-    int thread_n = 10;
-    ptrs.clear();
-    addrs.resize(thread_n);
-    for (int i = 0; i < 10; i++) {
-      threads.emplace_back([&, i] {
-        stage.wait(thread_n);
-        thread_id = i;
-        pthread_kill(pthread_self(), SIGUSR1);
-      });
-    }
-    for (auto &t : threads) {
-      t.join();
-    }
-    std::sort(ptrs.begin(), ptrs.end());
-    CHECK(ptrs == ans);
-    auto addrs_size = addrs.size();
-    td::unique(addrs);
-    ASSERT_EQ(addrs_size, addrs.size());
-    //LOG(ERROR) << addrs;
-  }
-}
-
-#if !TD_EVENTFD_UNSUPPORTED
-TEST(Port, EventFdAndSignals) {
-  td::set_signal_handler(td::SignalType::User, [](int signal) {}).ensure();
-  SCOPE_EXIT {
-    td::set_signal_handler(td::SignalType::User, nullptr).ensure();
-  };
-
-  std::atomic_flag flag;
-  flag.test_and_set();
-  auto main_thread = pthread_self();
-  td::thread interrupt_thread{[&flag, &main_thread] {
-    td::setup_signals_alt_stack().ensure();
-    while (flag.test_and_set()) {
-      pthread_kill(main_thread, SIGUSR1);
-      td::usleep_for(1000 * td::Random::fast(1, 10));  // 0.001s - 0.01s
-    }
-  }};
-
-  for (int timeout_ms : {0, 1, 2, 10, 100, 500}) {
-    double min_diff = 10000000;
-    double max_diff = 0;
-    for (int t = 0; t < td::max(5, 1000 / td::max(timeout_ms, 1)); t++) {
-      td::EventFd event_fd;
-      event_fd.init();
-      auto start = td::Timestamp::now();
-      event_fd.wait(timeout_ms);
-      auto end = td::Timestamp::now();
-      auto passed = end.at() - start.at();
-      auto diff = passed * 1000 - timeout_ms;
-      min_diff = td::min(min_diff, diff);
-      max_diff = td::max(max_diff, diff);
-    }
-
-    LOG_CHECK(min_diff >= 0) << min_diff;
-    // LOG_CHECK(max_diff < 10) << max_diff;
-    LOG(INFO) << min_diff << " " << max_diff;
-  }
-  flag.clear();
-}
-#endif
-#endif
-
-#if TD_HAVE_THREAD_AFFINITY
-TEST(Port, ThreadAffinityMask) {
-  auto thread_id = td::this_thread::get_id();
-  auto old_mask = td::thread::get_affinity_mask(thread_id);
-  LOG(INFO) << "Initial thread " << thread_id << " affinity mask: " << old_mask;
-  for (size_t i = 0; i < 64; i++) {
-    auto mask = td::thread::get_affinity_mask(thread_id);
-    LOG(INFO) << mask;
-    auto result = td::thread::set_affinity_mask(thread_id, static_cast<td::uint64>(1) << i);
-    LOG(INFO) << i << ": " << result << ' ' << td::thread::get_affinity_mask(thread_id);
-
-    if (i <= 1) {
-      td::thread thread([] {
-        auto thread_id = td::this_thread::get_id();
-        auto mask = td::thread::get_affinity_mask(thread_id);
-        LOG(INFO) << "New thread " << thread_id << " affinity mask: " << mask;
-        auto result = td::thread::set_affinity_mask(thread_id, 1);
-        LOG(INFO) << "Thread " << thread_id << ": " << result << ' ' << td::thread::get_affinity_mask(thread_id);
-      });
-      LOG(INFO) << "Will join new thread " << thread.get_id()
-                << " with affinity mask: " << td::thread::get_affinity_mask(thread.get_id());
-    }
-  }
-  auto result = td::thread::set_affinity_mask(thread_id, old_mask);
-  LOG(INFO) << result;
-  old_mask = td::thread::get_affinity_mask(thread_id);
-  LOG(INFO) << old_mask;
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/pq.cpp b/third-party/td/td/tdutils/test/pq.cpp
deleted file mode 100644
index 49fbd26537..0000000000
--- a/third-party/td/td/tdutils/test/pq.cpp
+++ /dev/null
@@ -1,162 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/tests.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/BigNum.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/SliceBuilder.h"
-
-#include <limits>
-#include <utility>
-
-static bool is_prime(td::uint64 x) {
-  for (td::uint64 d = 2; d < x && d * d <= x; d++) {
-    if (x % d == 0) {
-      return false;
-    }
-  }
-  return true;
-}
-
-static td::vector<td::uint64> gen_primes(td::uint64 L, td::uint64 R, std::size_t limit = 0) {
-  td::vector<td::uint64> res;
-  for (auto x = L; x <= R && (limit <= 0 || res.size() < limit); x++) {
-    if (is_prime(x)) {
-      res.push_back(x);
-    }
-  }
-  return res;
-}
-
-static td::vector<td::uint64> gen_primes(int mode) {
-  td::vector<td::uint64> result;
-  if (mode == 1) {
-    for (size_t i = 10; i <= 19; i++) {
-      td::append(result, gen_primes(i * 100000000, (i + 1) * 100000000, 1));
-    }
-  } else {
-    td::append(result, gen_primes(1, 100));
-    td::append(result, gen_primes((1ull << 31) - 500000, std::numeric_limits<td::uint64>::max(), 5));
-    td::append(result, gen_primes((1ull << 32) - 500000, std::numeric_limits<td::uint64>::max(), 2));
-    td::append(result, gen_primes((1ull << 39) - 500000, std::numeric_limits<td::uint64>::max(), 1));
-  }
-  return result;
-}
-
-using PqQuery = std::pair<td::uint64, td::uint64>;
-
-static td::vector<PqQuery> gen_pq_queries(int mode = 0) {
-  td::vector<PqQuery> res;
-  auto primes = gen_primes(mode);
-  for (auto q : primes) {
-    for (auto p : primes) {
-      if (p > q) {
-        break;
-      }
-      res.emplace_back(p, q);
-    }
-  }
-  return res;
-}
-
-static td::string to_binary(td::uint64 x) {
-  td::string result;
-  do {
-    result = static_cast<char>(x & 255) + result;
-    x >>= 8;
-  } while (x > 0);
-  return result;
-}
-
-static void test_pq_fast(td::uint64 first, td::uint64 second) {
-  if ((static_cast<td::uint64>(1) << 63) / first <= second) {
-    return;
-  }
-
-  td::string p_str;
-  td::string q_str;
-  int err = td::pq_factorize(to_binary(first * second), &p_str, &q_str);
-  ASSERT_EQ(err, 0);
-
-  ASSERT_STREQ(p_str, to_binary(first));
-  ASSERT_STREQ(q_str, to_binary(second));
-}
-
-#if TD_HAVE_OPENSSL
-static void test_pq_slow(td::uint64 first, td::uint64 second) {
-  if ((static_cast<td::uint64>(1) << 63) / first > second) {
-    return;
-  }
-
-  td::BigNum p = td::BigNum::from_decimal(PSLICE() << first).move_as_ok();
-  td::BigNum q = td::BigNum::from_decimal(PSLICE() << second).move_as_ok();
-
-  td::BigNum pq;
-  td::BigNumContext context;
-  td::BigNum::mul(pq, p, q, context);
-  td::string pq_str = pq.to_binary();
-
-  td::string p_str;
-  td::string q_str;
-  int err = td::pq_factorize(pq_str, &p_str, &q_str);
-  LOG_CHECK(err == 0) << first << " * " << second;
-
-  td::BigNum p_res = td::BigNum::from_binary(p_str);
-  td::BigNum q_res = td::BigNum::from_binary(q_str);
-
-  LOG_CHECK(p_str == p.to_binary()) << td::tag("receive", p_res.to_decimal()) << td::tag("expected", first);
-  LOG_CHECK(q_str == q.to_binary()) << td::tag("receive", q_res.to_decimal()) << td::tag("expected", second);
-}
-#endif
-
-TEST(CryptoPQ, hands) {
-  ASSERT_EQ(1ull, td::pq_factorize(0));
-  ASSERT_EQ(1ull, td::pq_factorize(1));
-  ASSERT_EQ(1ull, td::pq_factorize(2));
-  ASSERT_EQ(1ull, td::pq_factorize(3));
-  ASSERT_EQ(2ull, td::pq_factorize(4));
-  ASSERT_EQ(1ull, td::pq_factorize(5));
-  ASSERT_EQ(3ull, td::pq_factorize(7 * 3));
-  ASSERT_EQ(179424611ull, td::pq_factorize(179424611ull * 179424673ull));
-
-#if TD_HAVE_OPENSSL
-  test_pq_slow(4294467311, 4294467449);
-#endif
-}
-
-TEST(CryptoPQ, four) {
-  for (int i = 0; i < 100000; i++) {
-    test_pq_fast(2, 2);
-  }
-}
-
-TEST(CryptoPQ, generated_fast) {
-  auto queries = gen_pq_queries();
-  for (const auto &query : queries) {
-    test_pq_fast(query.first, query.second);
-  }
-}
-
-TEST(CryptoPQ, generated_server) {
-  auto queries = gen_pq_queries(1);
-  for (const auto &query : queries) {
-    test_pq_fast(query.first, query.second);
-  }
-}
-
-#if TD_HAVE_OPENSSL
-TEST(CryptoPQ, generated_slow) {
-  auto queries = gen_pq_queries();
-  for (const auto &query : queries) {
-    test_pq_slow(query.first, query.second);
-  }
-}
-#endif
diff --git a/third-party/td/td/tdutils/test/variant.cpp b/third-party/td/td/tdutils/test/variant.cpp
deleted file mode 100644
index 1c1673b9fc..0000000000
--- a/third-party/td/td/tdutils/test/variant.cpp
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/Variant.h"
-
-static const size_t BUF_SIZE = 1024 * 1024;
-static char buf[BUF_SIZE], buf2[BUF_SIZE];
-static td::StringBuilder sb(td::MutableSlice(buf, BUF_SIZE - 1));
-static td::StringBuilder sb2(td::MutableSlice(buf2, BUF_SIZE - 1));
-
-static td::string move_sb() {
-  auto res = sb.as_cslice().str();
-  sb.clear();
-  return res;
-}
-
-static td::string name(int id) {
-  if (id == 1) {
-    return "A";
-  }
-  if (id == 2) {
-    return "B";
-  }
-  if (id == 3) {
-    return "C";
-  }
-  return "";
-}
-
-template <int id>
-class Class {
- public:
-  Class() {
-    sb << "+" << name(id);
-  }
-  Class(const Class &) = delete;
-  Class &operator=(const Class &) = delete;
-  Class(Class &&) = delete;
-  Class &operator=(Class &&) = delete;
-  ~Class() {
-    sb << "-" << name(id);
-  }
-};
-
-using A = Class<1>;
-using B = Class<2>;
-using C = Class<3>;
-
-TEST(Variant, simple) {
-  {
-    td::Variant<td::unique_ptr<A>, td::unique_ptr<B>, td::unique_ptr<C>> abc;
-    ASSERT_STREQ("", sb.as_cslice());
-    abc = td::make_unique<A>();
-    ASSERT_STREQ("+A", sb.as_cslice());
-    sb.clear();
-    abc = td::make_unique<B>();
-    ASSERT_STREQ("+B-A", sb.as_cslice());
-    sb.clear();
-    abc = td::make_unique<C>();
-    ASSERT_STREQ("+C-B", sb.as_cslice());
-    sb.clear();
-  }
-  ASSERT_STREQ("-C", move_sb());
-  sb.clear();
-}
diff --git a/third-party/td/td/test/CMakeLists.txt b/third-party/td/td/test/CMakeLists.txt
deleted file mode 100644
index 552c06a47b..0000000000
--- a/third-party/td/td/test/CMakeLists.txt
+++ /dev/null
@@ -1,74 +0,0 @@
-if ((CMAKE_MAJOR_VERSION LESS 3) OR (CMAKE_VERSION VERSION_LESS "3.10"))
-  message(FATAL_ERROR "CMake >= 3.10 is required")
-endif()
-
-set(TD_TEST_SOURCE
-  ${CMAKE_CURRENT_SOURCE_DIR}/country_info.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/db.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/http.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/link.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/message_entities.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/mtproto.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/poll.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/query_merger.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/secret.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/secure_storage.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/set_with_position.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/string_cleaning.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/tdclient.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/tqueue.cpp
-
-  ${CMAKE_CURRENT_SOURCE_DIR}/data.cpp
-  ${CMAKE_CURRENT_SOURCE_DIR}/data.h
-
-  ${TDUTILS_TEST_SOURCE}
-  ${TDACTOR_TEST_SOURCE}
-)
-set(TD_TEST_SOURCE ${TD_TEST_SOURCE} PARENT_SCOPE)
-
-set(TESTS_MAIN
-  main.cpp
-)
-
-#add_library(all_tests STATIC ${TD_TEST_SOURCE})
-#target_include_directories(all_tests PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-#target_link_libraries(all_tests PRIVATE tdcore tdclient)
-
-if (NOT CMAKE_CROSSCOMPILING OR EMSCRIPTEN)
-  if (OPENSSL_FOUND)
-    add_executable(test-crypto EXCLUDE_FROM_ALL crypto.cpp)
-    target_include_directories(test-crypto SYSTEM PRIVATE ${OPENSSL_INCLUDE_DIR})
-    target_link_libraries(test-crypto PRIVATE ${OPENSSL_CRYPTO_LIBRARY} ${CMAKE_DL_LIBS} ${ZLIB_LIBRARIES} tdutils tdmtproto)
-
-    if (WIN32)
-      if (MINGW)
-        target_link_libraries(test-crypto PRIVATE ws2_32 mswsock crypt32)
-      else()
-        target_link_libraries(test-crypto PRIVATE ws2_32 Mswsock Crypt32)
-      endif()
-    endif()
-  endif()
-
-  add_executable(test-tdutils EXCLUDE_FROM_ALL ${TESTS_MAIN} ${TDUTILS_TEST_SOURCE})
-  add_executable(test-online EXCLUDE_FROM_ALL online.cpp)
-  add_executable(run_all_tests ${TESTS_MAIN} ${TD_TEST_SOURCE})
-  if (CLANG AND NOT CYGWIN AND NOT EMSCRIPTEN AND NOT (CMAKE_SYSTEM_NAME MATCHES "OpenBSD") AND NOT (CMAKE_SIZEOF_VOID_P EQUAL 4))
-    target_compile_options(test-tdutils PUBLIC -fsanitize=undefined -fno-sanitize=vptr)
-    target_compile_options(run_all_tests PUBLIC -fsanitize=undefined -fno-sanitize=vptr)
-    target_compile_options(test-online PUBLIC -fsanitize=undefined -fno-sanitize=vptr)
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=undefined -fno-sanitize=vptr")
-  endif()
-  target_include_directories(run_all_tests PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-  target_include_directories(test-tdutils PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
-  target_link_libraries(test-tdutils PRIVATE tdutils)
-  target_link_libraries(run_all_tests PRIVATE tdcore tdclient)
-  target_link_libraries(test-online PRIVATE tdcore tdclient tdutils tdactor)
-
-  if (CLANG)
-#    add_executable(fuzz_url fuzz_url.cpp)
-#    target_link_libraries(fuzz_url PRIVATE tdcore)
-#    target_compile_options(fuzz_url PRIVATE "-fsanitize-coverage=trace-pc-guard")
-  endif()
-
-  add_test(run_all_tests run_all_tests)
-endif()
diff --git a/third-party/td/td/test/country_info.cpp b/third-party/td/td/test/country_info.cpp
deleted file mode 100644
index 7bf84c8fcd..0000000000
--- a/third-party/td/td/test/country_info.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/CountryInfoManager.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/tests.h"
-
-static void check_phone_number_info(td::string phone_number_prefix, const td::string &country_code,
-                                    const td::string &calling_code, const td::string &formatted_phone_number,
-                                    bool is_anonymous = false) {
-  auto result = td::CountryInfoManager::get_phone_number_info_sync(td::string(), phone_number_prefix);
-  CHECK(result != nullptr);
-  if (result->country_ == nullptr) {
-    CHECK(country_code.empty());
-  } else {
-    CHECK(result->country_->country_code_ == country_code);
-  }
-  CHECK(result->country_calling_code_ == calling_code);
-  if (result->formatted_phone_number_ != formatted_phone_number) {
-    LOG(ERROR) << phone_number_prefix << ' ' << result->formatted_phone_number_ << ' ' << formatted_phone_number;
-    CHECK(result->formatted_phone_number_ == formatted_phone_number);
-  }
-  CHECK(result->is_anonymous_ == is_anonymous);
-}
-
-TEST(CountryInfo, phone_number_info) {
-  check_phone_number_info("", "", "", "");
-  check_phone_number_info("aba c aba", "", "", "");
-
-  td::string str;
-  td::string reverse_str;
-  for (auto i = 0; i < 256; i++) {
-    str += static_cast<char>(i);
-    reverse_str += static_cast<char>(255 - i);
-  }
-  check_phone_number_info(str, "", "", "0123456789");
-  check_phone_number_info(reverse_str, "IR", "98", "765 432 10--");
-
-  check_phone_number_info("1", "US", "1", "--- --- ----");
-  check_phone_number_info("12", "US", "1", "2-- --- ----");
-  check_phone_number_info("126", "US", "1", "26- --- ----");
-  check_phone_number_info("128", "US", "1", "28- --- ----");
-  check_phone_number_info("1289", "CA", "1", "289 --- ----");
-  check_phone_number_info("1289123123", "CA", "1", "289 123 123-");
-  check_phone_number_info("128912312345", "CA", "1", "289 123 12345");
-  check_phone_number_info("1268", "AG", "1268", "--- ----");
-  check_phone_number_info("126801", "AG", "1268", "01- ----");
-  check_phone_number_info("12680123", "AG", "1268", "012 3---");
-  check_phone_number_info("12680123456", "AG", "1268", "012 3456");
-  check_phone_number_info("1268012345678", "AG", "1268", "012 345678");
-  check_phone_number_info("7", "RU", "7", "--- --- ----");
-  check_phone_number_info("71234567", "RU", "7", "123 456 7---");
-  check_phone_number_info("77654321", "KZ", "7", "765 432 1- --");
-  check_phone_number_info("3", "", "3", "");
-  check_phone_number_info("37", "", "37", "");
-  check_phone_number_info("372", "EE", "372", "---- ---");
-  check_phone_number_info("42", "", "42", "");
-  check_phone_number_info("420", "CZ", "420", "--- --- ---");
-  check_phone_number_info("421", "SK", "421", "--- --- ---");
-  check_phone_number_info("422", "", "", "422");
-  check_phone_number_info("423", "LI", "423", "--- ----");
-  check_phone_number_info("424", "YL", "42", "4");
-  check_phone_number_info("4241234567890", "YL", "42", "41234567890");
-  check_phone_number_info("4", "", "4", "");
-  check_phone_number_info("49", "DE", "49", "");
-  check_phone_number_info("491", "DE", "49", "1");
-  check_phone_number_info("492", "DE", "49", "2");
-  check_phone_number_info("4915", "DE", "49", "15");
-  check_phone_number_info("4916", "DE", "49", "16");
-  check_phone_number_info("4917", "DE", "49", "17");
-  check_phone_number_info("4918", "DE", "49", "18");
-  check_phone_number_info("493", "DE", "49", "3");
-  check_phone_number_info("4936", "DE", "49", "36");
-  check_phone_number_info("49360", "DE", "49", "360");
-  check_phone_number_info("493601", "DE", "49", "3601");
-  check_phone_number_info("4936014", "DE", "49", "36014");
-  check_phone_number_info("4936015", "DE", "49", "36015");
-  check_phone_number_info("493601419", "DE", "49", "3601419");
-  check_phone_number_info("4936014198", "DE", "49", "36014198");
-  check_phone_number_info("49360141980", "DE", "49", "360141980");
-  check_phone_number_info("841234567890", "VN", "84", "1234567890");
-  check_phone_number_info("31", "NL", "31", "- -- -- -- --");
-  check_phone_number_info("318", "NL", "31", "8 -- -- -- --");
-  check_phone_number_info("319", "NL", "31", "9 -- -- -- --");
-  check_phone_number_info("3196", "NL", "31", "9 6- -- -- --");
-  check_phone_number_info("3197", "NL", "31", "9 7- -- -- --");
-  check_phone_number_info("3198", "NL", "31", "9 8- -- -- --");
-  check_phone_number_info("88", "", "88", "");
-  check_phone_number_info("888", "FT", "888", "---- ----", true);
-  check_phone_number_info("8888", "FT", "888", "8 ---", true);
-  check_phone_number_info("88888", "FT", "888", "8 8--", true);
-  check_phone_number_info("888888", "FT", "888", "8 88-", true);
-  check_phone_number_info("8888888", "FT", "888", "8 888", true);
-  check_phone_number_info("88888888", "FT", "888", "8 8888", true);
-  check_phone_number_info("888888888", "FT", "888", "8 88888", true);
-  check_phone_number_info("8888888888", "FT", "888", "8 888888", true);
-}
diff --git a/third-party/td/td/test/crypto.cpp b/third-party/td/td/test/crypto.cpp
deleted file mode 100644
index 82624e56d7..0000000000
--- a/third-party/td/td/test/crypto.cpp
+++ /dev/null
@@ -1,304 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/mtproto/AuthKey.h"
-#include "td/mtproto/Transport.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/detail/ThreadIdGuard.h"
-#include "td/utils/ScopeGuard.h"
-#include "td/utils/SharedSlice.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/UInt.h"
-
-#include <openssl/bio.h>
-#include <openssl/evp.h>
-#include <openssl/pem.h>
-
-class BasicHandshake {
- public:
-  struct KeyPair {
-    td::SecureString private_key;
-    td::SecureString public_key;
-  };
-
-  static td::Result<KeyPair> generate_key_pair() {
-    EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(NID_X25519, nullptr);
-    if (pctx == nullptr) {
-      return td::Status::Error("Can't create EXP_PKEY_CTX");
-    }
-    SCOPE_EXIT {
-      EVP_PKEY_CTX_free(pctx);
-    };
-    if (EVP_PKEY_keygen_init(pctx) <= 0) {
-      return td::Status::Error("Can't init keygen");
-    }
-
-    EVP_PKEY *pkey = nullptr;
-    if (EVP_PKEY_keygen(pctx, &pkey) <= 0) {
-      return td::Status::Error("Can't generate key");
-    }
-
-    TRY_RESULT(private_key, X25519_key_from_PKEY(pkey, true));
-    TRY_RESULT(public_key, X25519_key_from_PKEY(pkey, false));
-
-    KeyPair res;
-    res.private_key = std::move(private_key);
-    res.public_key = std::move(public_key);
-
-    return std::move(res);
-  }
-
-  static td::SecureString expand_secret(td::Slice secret) {
-    td::SecureString res(128);
-    td::hmac_sha512(secret, "0", res.as_mutable_slice().substr(0, 64));
-    td::hmac_sha512(secret, "1", res.as_mutable_slice().substr(64, 64));
-    return res;
-  }
-
-  static td::Result<td::SecureString> privateKeyToPem(td::Slice key) {
-    auto pkey_private = EVP_PKEY_new_raw_private_key(EVP_PKEY_X25519, nullptr, key.ubegin(), 32);
-    CHECK(pkey_private != nullptr);
-    auto res = X25519_pem_from_PKEY(pkey_private, true);
-    EVP_PKEY_free(pkey_private);
-    return res;
-  }
-
-  static td::Result<td::SecureString> calc_shared_secret(td::Slice private_key, td::Slice other_public_key) {
-    auto pkey_private = EVP_PKEY_new_raw_private_key(EVP_PKEY_X25519, nullptr, private_key.ubegin(), 32);
-    if (pkey_private == nullptr) {
-      return td::Status::Error("Invalid X25519 private key");
-    }
-    SCOPE_EXIT {
-      EVP_PKEY_free(pkey_private);
-    };
-
-    auto pkey_public =
-        EVP_PKEY_new_raw_public_key(EVP_PKEY_X25519, nullptr, other_public_key.ubegin(), other_public_key.size());
-    if (pkey_public == nullptr) {
-      return td::Status::Error("Invalid X25519 public key");
-    }
-    SCOPE_EXIT {
-      EVP_PKEY_free(pkey_public);
-    };
-
-    EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(pkey_private, nullptr);
-    if (ctx == nullptr) {
-      return td::Status::Error("Can't create EVP_PKEY_CTX");
-    }
-    SCOPE_EXIT {
-      EVP_PKEY_CTX_free(ctx);
-    };
-
-    if (EVP_PKEY_derive_init(ctx) <= 0) {
-      return td::Status::Error("Can't init derive");
-    }
-    if (EVP_PKEY_derive_set_peer(ctx, pkey_public) <= 0) {
-      return td::Status::Error("Can't init derive");
-    }
-
-    size_t result_len = 0;
-    if (EVP_PKEY_derive(ctx, nullptr, &result_len) <= 0) {
-      return td::Status::Error("Can't get result length");
-    }
-    if (result_len != 32) {
-      return td::Status::Error("Unexpected result length");
-    }
-
-    td::SecureString result(result_len, '\0');
-    if (EVP_PKEY_derive(ctx, result.as_mutable_slice().ubegin(), &result_len) <= 0) {
-      return td::Status::Error("Failed to compute shared secret");
-    }
-    return std::move(result);
-  }
-
-  static td::Result<td::SecureString> get_public_key(td::Slice private_key) {
-    auto pkey_private = EVP_PKEY_new_raw_private_key(EVP_PKEY_X25519, nullptr, private_key.ubegin(), 32);
-    if (pkey_private == nullptr) {
-      return td::Status::Error("Invalid X25519 private key");
-    }
-    SCOPE_EXIT {
-      EVP_PKEY_free(pkey_private);
-    };
-
-    auto func = &EVP_PKEY_get_raw_public_key;
-    size_t len = 0;
-    if (func(pkey_private, nullptr, &len) == 0) {
-      return td::Status::Error("Failed to get raw key length");
-    }
-    CHECK(len == 32);
-
-    td::SecureString result(len);
-    if (func(pkey_private, result.as_mutable_slice().ubegin(), &len) == 0) {
-      return td::Status::Error("Failed to get raw key");
-    }
-    return std::move(result);
-  }
-
- private:
-  static td::Result<td::SecureString> X25519_key_from_PKEY(EVP_PKEY *pkey, bool is_private) {
-    auto func = is_private ? &EVP_PKEY_get_raw_private_key : &EVP_PKEY_get_raw_public_key;
-    size_t len = 0;
-    if (func(pkey, nullptr, &len) == 0) {
-      return td::Status::Error("Failed to get raw key length");
-    }
-    CHECK(len == 32);
-
-    td::SecureString result(len);
-    if (func(pkey, result.as_mutable_slice().ubegin(), &len) == 0) {
-      return td::Status::Error("Failed to get raw key");
-    }
-    return std::move(result);
-  }
-
-  static td::Result<td::SecureString> X25519_pem_from_PKEY(EVP_PKEY *pkey, bool is_private) {
-    BIO *mem_bio = BIO_new(BIO_s_mem());
-    SCOPE_EXIT {
-      BIO_vfree(mem_bio);
-    };
-    if (is_private) {
-      PEM_write_bio_PrivateKey(mem_bio, pkey, nullptr, nullptr, 0, nullptr, nullptr);
-    } else {
-      PEM_write_bio_PUBKEY(mem_bio, pkey);
-    }
-    char *data_ptr = nullptr;
-    auto data_size = BIO_get_mem_data(mem_bio, &data_ptr);
-    return td::SecureString(data_ptr, data_size);
-  }
-};
-
-struct BasicHandshakeTest {
-  BasicHandshake::KeyPair alice;
-  BasicHandshake::KeyPair bob;
-
-  td::SecureString shared_secret;
-  td::SecureString key;
-};
-
-static void KDF3(td::Slice auth_key, const td::UInt128 &msg_key, int X, td::UInt256 *aes_key, td::UInt128 *aes_iv) {
-  td::uint8 buf_raw[36 + 16];
-  td::MutableSlice buf(buf_raw, 36 + 16);
-  td::Slice msg_key_slice = td::as_slice(msg_key);
-
-  // sha256_a = SHA256 (msg_key + substr(auth_key, x, 36));
-  buf.copy_from(msg_key_slice);
-  buf.substr(16, 36).copy_from(auth_key.substr(X, 36));
-  td::uint8 sha256_a_raw[32];
-  td::MutableSlice sha256_a(sha256_a_raw, 32);
-  sha256(buf, sha256_a);
-
-  // sha256_b = SHA256 (substr(auth_key, 40+x, 36) + msg_key);
-  buf.copy_from(auth_key.substr(40 + X, 36));
-  buf.substr(36).copy_from(msg_key_slice);
-  td::uint8 sha256_b_raw[32];
-  td::MutableSlice sha256_b(sha256_b_raw, 32);
-  sha256(buf, sha256_b);
-
-  // aes_key = substr(sha256_a, 0, 8) + substr(sha256_b, 8, 16) + substr(sha256_a, 24, 8);
-  td::MutableSlice aes_key_slice(aes_key->raw, sizeof(aes_key->raw));
-  aes_key_slice.copy_from(sha256_a.substr(0, 8));
-  aes_key_slice.substr(8).copy_from(sha256_b.substr(8, 16));
-  aes_key_slice.substr(24).copy_from(sha256_a.substr(24, 8));
-
-  // aes_iv = substr(sha256_b, 0, 4) + substr(sha256_a, 8, 8) + substr(sha256_b, 24, 4);
-  td::MutableSlice aes_iv_slice(aes_iv->raw, sizeof(aes_iv->raw));
-  aes_iv_slice.copy_from(sha256_b.substr(0, 4));
-  aes_iv_slice.substr(4).copy_from(sha256_a.substr(8, 8));
-  aes_iv_slice.substr(12).copy_from(sha256_b.substr(24, 4));
-}
-
-static td::SecureString encrypt(td::Slice key, td::Slice data, td::int32 seqno, int X) {
-  td::SecureString res(data.size() + 4 + 16);
-  res.as_mutable_slice().substr(20).copy_from(data);
-
-  // big endian
-  td::uint8 *ptr = res.as_mutable_slice().substr(16).ubegin();
-  ptr[0] = static_cast<td::uint8>((seqno >> 24) & 255);
-  ptr[1] = static_cast<td::uint8>((seqno >> 16) & 255);
-  ptr[2] = static_cast<td::uint8>((seqno >> 8) & 255);
-  ptr[3] = static_cast<td::uint8>(seqno & 255);
-
-  td::mtproto::AuthKey auth_key(0, key.str());
-  auto payload = res.as_mutable_slice().substr(16);
-  td::UInt128 msg_key = td::mtproto::Transport::calc_message_key2(auth_key, X, payload).second;
-  td::UInt256 aes_key;
-  td::UInt128 aes_iv;
-  KDF3(key, msg_key, X, &aes_key, &aes_iv);
-  td::AesCtrState aes;
-  aes.init(aes_key.as_slice(), aes_iv.as_slice());
-  aes.encrypt(payload, payload);
-  res.as_mutable_slice().copy_from(msg_key.as_slice());
-  return res;
-}
-
-static BasicHandshakeTest gen_test() {
-  BasicHandshakeTest res;
-  res.alice = BasicHandshake::generate_key_pair().move_as_ok();
-
-  res.bob = BasicHandshake::generate_key_pair().move_as_ok();
-  res.shared_secret = BasicHandshake::calc_shared_secret(res.alice.private_key, res.bob.public_key).move_as_ok();
-  res.key = BasicHandshake::expand_secret(res.shared_secret);
-  return res;
-}
-
-static void run_test(const BasicHandshakeTest &test) {
-  CHECK(BasicHandshake::get_public_key(test.alice.private_key).move_as_ok() == test.alice.public_key);
-  CHECK(BasicHandshake::get_public_key(test.bob.private_key).move_as_ok() == test.bob.public_key);
-  auto alice_secret = BasicHandshake::calc_shared_secret(test.alice.private_key, test.bob.public_key).move_as_ok();
-  auto bob_secret = BasicHandshake::calc_shared_secret(test.bob.private_key, test.alice.public_key).move_as_ok();
-  auto key = BasicHandshake::expand_secret(alice_secret);
-  CHECK(alice_secret == bob_secret);
-  CHECK(alice_secret == test.shared_secret);
-  LOG(ERROR) << "Key\n\t" << td::base64url_encode(key) << "\n";
-  CHECK(key == test.key);
-}
-
-static td::StringBuilder &operator<<(td::StringBuilder &sb, const BasicHandshake::KeyPair &key_pair) {
-  sb << "\tpublic_key (base64url) = " << td::base64url_encode(key_pair.public_key) << "\n";
-  sb << "\tprivate_key (base64url) = " << td::base64url_encode(key_pair.private_key) << "\n";
-  sb << "\tprivate_key (pem) = \n" << BasicHandshake::privateKeyToPem(key_pair.private_key).ok() << "\n";
-  return sb;
-}
-
-static td::StringBuilder &operator<<(td::StringBuilder &sb, const BasicHandshakeTest &test) {
-  sb << "Alice\n" << test.alice;
-  sb << "Bob\n" << test.bob;
-  sb << "SharedSecret\n\t" << td::base64url_encode(test.shared_secret) << "\n";
-  sb << "Key\n\t" << td::base64url_encode(test.key) << "\n";
-
-  std::string data = "hello world";
-  sb << "encrypt(\"" << data << "\", X=0) = \n\t" << td::base64url_encode(encrypt(test.key, data, 1, 0)) << "\n";
-  sb << "encrypt(\"" << data << "\", X=8) = \n\t" << td::base64url_encode(encrypt(test.key, data, 1, 8)) << "\n";
-  return sb;
-}
-
-static BasicHandshakeTest pregenerated_test() {
-  BasicHandshakeTest test;
-  test.alice.public_key = td::base64url_decode_secure("QlCME5fXLyyQQWeYnBiGAZbmzuD4ayOuADCFgmioOBY").move_as_ok();
-  test.alice.private_key = td::base64url_decode_secure("8NZGWKfRCJfiks74RG9_xHmYydarLiRsoq8VcJGPglg").move_as_ok();
-  test.bob.public_key = td::base64url_decode_secure("I1yzfmMCZzlI7xwMj1FJ3O3I3_aEUtv6CxbHiDGzr18").move_as_ok();
-  test.bob.private_key = td::base64url_decode_secure("YMGoowtnZ99roUM2y5JRwiQrwGaNJ-ZRE5boy-l4aHg").move_as_ok();
-  test.shared_secret = td::base64url_decode_secure("0IIvKJuXEwmAp41fYhjUnWqLTYQJ7QeKZKYuCG8mFz8").move_as_ok();
-  test.key = td::base64url_decode_secure(
-                 "JHmD-XW9j-13G6KP0tArIhQNDRVbRkKxx0MG0pa2nOgwJHNfiggM0I0RiNIr23-1wRboRtan4WvqOHsxAt_cngYX15_"
-                 "HYe8tJdEwHcmlnXq7LtprigzExaNJS7skfOo2irClj-7EL06-jMrhfwngSJFsak8JFSw8s6R4fwCsr50")
-                 .move_as_ok();
-
-  return test;
-}
-
-int main() {
-  td::detail::ThreadIdGuard thread_id_guard;
-  auto test = gen_test();
-  run_test(test);
-  run_test(pregenerated_test());
-  LOG(ERROR) << "\n" << pregenerated_test();
-}
diff --git a/third-party/td/td/test/data.cpp b/third-party/td/td/test/data.cpp
deleted file mode 100644
index 0954c32792..0000000000
--- a/third-party/td/td/test/data.cpp
+++ /dev/null
@@ -1,503 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "data.h"
-
-static const char thumbnail_arr[] =
-    "_9j_4AAQSkZJRgABAQEASABIAAD_2wBDAAICAgICAQICAgIDAgIDAwYEAwMDAwcFBQQGCAcJCAgHCAgJCg0LCQoMCggICw8LDA0ODg8OCQsQERAOEQ"
-    "0ODg7_2wBDAQIDAwMDAwcEBAcOCQgJDg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg4ODg7_wAARCAAyADIDASIA"
-    "AhEBAxEB_8QAHAAAAQUBAQEAAAAAAAAAAAAAAAUGBwgJAgQD_8QAMRAAAgEDAwMDAgUDBQAAAAAAAQIDBAURAAYSByExCBNBFCIVMlFhcZGhsQkjUm"
-    "KB_8QAGgEAAgMBAQAAAAAAAAAAAAAABgcAAggEBf_EACgRAAECBgIBBAMBAQAAAAAAAAECEQADBAUhMRJBBhMyUWEUIlJCkf_aAAwDAQACEQMRAD8A"
-    "381CvUXrbtzYtTLa6ZPx3cKj76SGQLHTn491-_E_9QC38a464dSH2H08gpLZMI9x3dmhom7EwKB98uP2yAP3Ofg6z2M8jVXvM5qqkyFpeTsCCR3Lk9"
-    "y2eWe_yD3znTG8esEqtR-TVAlJ9qRgqbZJ6T1956ELjyG_T6RRpqQhJHvWrIS-gkf6UfjrGHMTVePUH1HuVYxp7rTWOFj9sVDRocfoOUgYk_00nUXX"
-    "XqdQTrIdzmsQgHhWUcLowOcdwoPwfB1W3fG8KjaNlpnoqNK-veCWVYXk9qL26eMSOXkPZclUUdxkk-QMaiPZPqFp9wdT7btC92iltlRcZvpqea33Na"
-    "mNZSuVjcY7BsYDA-SMjByD5c2w01V-DMp5aS4HtffypjnXffULxNPeqmjNwlVU1YZRcFtfCSRjfXRIfUa1bG9SFuuddDbt6UUdkqHIVbhTkmmJPjmp"
-    "-6P-ckfrjVno5ElgSWJ1kjdQyspyGB8EH51kUWDShpFIbAAkQEjsDktk5wAMAD9hq2Pp16lTrdl2BeJzJSyKzWWWRs8Co5NCD8qR3A-CCv6aE7_45T"
-    "y5SqijSUKTlSNhvlJ-tkPrI0YMLD5DUmYiTVrE2WssmYMEK_lYxvQLbYHYi4-jRo0p4bUZ6-oC7y3P1IXajJ5QW-lio4jyIKgqsreDg_cwPceQMY86"
-    "hQAKoUeAMdzk6lzrhb5aT1R7kUqSKpoaiLt-YNEo_wAqw_8ANMuqsVbTWy3x1tEbeXV2E0isWkOcn7QPABAyTnPxp9zfJPH_ABO1US6xYSJwSMZIHE"
-    "krIyriFYJA2obyIzbMst_8oulZLpwVeiVkA4BPIAIBwORTkAnQOsExZNddoWn1T9Kju6G1yU9bLW01ILraKetiqKgLDJHSH3gVi94hoxIBkOYwCM6r"
-    "x6yLDYdt9fOi9T03l3DfN2_h8VRPBdYF-uWp-pWSCmZY40CyZYqYuPJOSqQp-0TtuK1dPt0b6oLNvfZg3R9HDM8UU8X3orcQxTDqAGwnEk4J8kAEa8"
-    "th2NtTZnVjprfZ62fd9vgsMU9jmu1OZJ7YaZ-ApqFsKEVXYq0vEBnZeJIw5UdRfrd5Fd6mptyipCVMFMwUyQXDsWwWcAk6Goc1ts9dZLNT01enishy"
-    "PcQ6jgs40csSAHc4MPynrYKyxwXHgaenngWfhMvExBl5cWB8Fc4IPgg6WbJdqi07ntd5pJ-Ro6mGpgfOSntsGwD-hGRj9zpSHTjfm-t6XWt2zXWqhg"
-    "J-rqqGpo-VNLKMMY4nVwW5sCzKue5YjAPHTbobXf6eWjs9-t0duv1RHFIaSGpWYAT_AJMEAEEkkFWAYEeMYJd9vvtHeJyKWanPByT_AEBkD6ZzCUuX"
-    "j1fYKeZVypmCviAM_ofaTjB5MPrbuRGucUizU0c0bZR1DL2-CMjRriliFNbKanzn2olTP8DGjWczvGo0onQfcV666bXhFwsXUGKnhq6m0LItRSTSGN"
-    "KpUR5olZgDxAdCCcHCuT8Y1nd0O3dW9X-gta1nv0fTvct_u9xZZ4LuK-sjZgrSSokhb2hyBVEAwBGDjuQdft02GPcuxLjZ3dYnniIhlePmI5B-Vivy"
-    "AfIyMjI-dUZpukO99qbiEtv6YxVFQjk-9QVkP08mD5BGJMHzhhkds_roG8lNVUKlOhSwkJCSHPEJUVMwBcEqJDgx7NqlU9P6hQySslSgeyQA-W6SIb"
-    "O6tqQbUk2jcEu0k93WrRPrGjVZPd4_mRhjv7gRyvEqCMnHjTT6f1VmrfUttCyb2RL7FT0sFos9NV0iJTQUsCPUksVHeV5QWLcTyZBnHwp9RoKy47tp"
-    "pr5a7haK6mOGiniaBBjHZc_GRnlnP9iI1u1huF9r7dV2GrnpNx0NSs9BUUqM5Dg5AKr3Iz_Tv8Egnvg_h12Rbq2pXI9JC-BlBRZSikK5nJ_UEEAOzk"
-    "dCF_5N5hbJVzpKZM4rKeYmcQ6U8m4aDqKSC_F2B7OIsX1grfTIfVHsSh6gRXPZW5LeJLlYLxaqeWgt0pMyoyTVKf7QkZ4lAVuLEHAbDYMc7F3jsHdX"
-    "-tXPtXb9FX38PRrW1N5p0MlKwp6f3qcyOo4BFaQxA5yWVVxjSjvDp31r6rdNVgvHS2WgqaWZaumd6yn9mr44WSLizLKnuAI6lk7PChPbOrhem3phH0"
-    "k9Ie1NpyWZbHdVgM9ypRULMY5nYkoZFGG4jio8-PJ8nsE2bSLJQeK8j_oIPz0SNwRLpqKsokKUrk5H6l2YEKSrQ7AwexE76NGjXmx0QaMDRo1IkfKS"
-    "KKZCk0ayp_xdQR_fXEVLS0yn6emip8-fbjC_40aNWc66ijDbZj0YGjRo1WLwaNGjUiR__9k";
-
-const char *thumbnail = thumbnail_arr;
-const size_t thumbnail_size = sizeof(thumbnail_arr) - 1;
-
-static const char gzip_bomb_arr[] =
-    "eJzt3VlQU2cYxvGTSFSkqHWJuIHTUqotAetIBmWzVUeUqlRrFcIqZlxCUKRshZBULVS0oqLiwqJWUVwAQQNBgSgt1EHFlS1AQCsZ1qAsASKTRonnnJ"
-    "ledHrViz5cfvMOOd_v_d-eJCK5vf6MaUmDLK7Jk_tZ9sSDEyYmdo7fOMeqdKSs-jXRxA_m8_fZPGTMW-Rhlf-AP7XxrGTW-qCOyWPtB90qdo-"
-    "NHtXfEi3Wlul0bWrxYNa1QaVY12ure9OdRgz_SVzyX-"
-    "nS59eYP1uYV68zHBLi7xcf2qyd7ddSbhX2geFsfPs3aeO04xhKLWffzBGGQyOHIeckkUmXZ1qZoH2a4XBWddSKRKGJ-"
-    "9UQxe8HGIbDXaZLU4U8SfDf_-UhiXroGG0wJSatvIgVcbXihV2YKTnpdP6ulHWxUtaxsez9U96O_ahCypHn9_AnOow0nI3uu1gRN-"
-    "Qq18SU0wZXFVfwlcxblapX025Sk6mPNymY37bVhV0LeK_hp7-3gu3nNZizl7pj1FNVSYxlY1QxnzZ4QanK2c7waeuO-"
-    "MWbmly9NUfIuBQadLP6C8PZouwzf-QKTebaiGp-o-7o1Nrt7zKhq1CZQxt8og6pySOyeiNvlWaSk4UX5tdICf12vNvNSF_"
-    "3P2ukLLOkokDaHc17B7ItjPsbtnvQBls0snaepGrQ0SegipxsWHsykCfZlqKwoTYROPt1oIK5382XS7tjwmB0dYJRtDrPmrayHq1XH0cuEJlnXROQk"
-    "-o5K6WcRTceCKdQm-BOipQKGaXnbU_R7rhM5Ny-"
-    "jFmk4bGpwbBBkY2W3XjDOaGq2o6c1ByxUrBPe6qktNqmxzsqpMSLx0kraXf81dmi72NkOTyILJElskSWBLJElgSyRJbDg8gSWSJLZEkgS2RJIEtkOT"
-    "yILJElskSWBLJElgSyRJbDi0CWyBJZIktkiSyH74gskSWyRJYEskSWBLJElu_uiCyRJbJElgSyRJbDvsgSWSJLZIkskeXwJLJElsgSWSJLZPluEFn-"
-    "11nq_NUHhOP3MGfHl7pe3eBeYz_S1Jhbye4pZRxnTCxxbZeP9Jw3gnXUOLb4jm1MyAOjcEmSo-ESnr5HI-2Nj9_kupErWfL5sYyx-"
-    "phmrlrZSlZXqylU6gsrH5TVryVZHqWWLdY_hU9x2cDJhe8f7efK9XzzVczmzPtrqMF4_qUS_"
-    "ebj1iYWkHN9InW4gt2YExOkeUru6brq1UH951Spg4vSyY2e7V13Ii5RIhPk0gY3nmjNZplVNT09R-7zrEiprZey8q-kKZxCSdSOSMdN-s_"
-    "pjUrOyiD5t4jWNTdZ-nXWWlODVzekLwxklIba22WQ-FuUmpg8IcOmTRW2mhKKMh-"
-    "nbyRiyFwlaCV7ACUoQQlKUIISlKAEJShBCUpQghKUoAQlKEEJSlCCEpSgBCUoQQlKUIISlKAEJShBCUpQghKUoAQlKEEJSlCCEpSgBCUoQQlKUIISl"
-    "KAEJShBCcp_ouzPDS_"
-    "jjv6KMWnp4tNs6yuBM3bHLpkuGBP1nLgnMfa3DN8xwjrl9p14o26PpinFCzbvcpC7meuhEyLZUuJCaJGU9nmanev3cOQBLQeSaHfIyLjcYdno0LOUW"
-    "khtk2bB9revxtcp15Cvxj9qCEj9iSPfmpIlpE0W1k32N-naUPDiE-oOwm2t2xyM-8eKDlELCesXPVC8_XoFTd5T8usVrmuOb_"
-    "Y32eGpEpyiTdqGL61mOh7rjFhO5XDqZEHtKmbRYt9z1EJmxqR1S99-F8IQJ5T8LoQOp2aPamZy5UAtbXX15d4fSomE8w4-"
-    "tBzS0zOliRL1wyk0oDil6pa-"
-    "pbYQsZs31SwoQQlKUIISlKAEJShBCUpQghKUoAQlKEEJSlCCEpSgBCUoQQlKUIISlKAEJShBCUpQghKUoAQlKEEJSlCCEpSgBCUoQQlKUIISlKAEJS"
-    "hBCUpQ_jtKiTgqPPDO3MOL_Pv3TxL68UbFJ5tlxpXs_XLFDAd3Gy-JIPvL_"
-    "KOXG414uxZmy1zt7B9axXrM53w9d0a0L0vMGGduuE7ODydO5bOO39kQKiPf5d-Udqb6Ck8SEOGbKSMXsSmvXuqVR1T4ireEkA9010f1xDnVKNpCMy_"
-    "8PeXBKz7NVkGM9LnfeXeS7_LXbJ7NbWM3mjUkCTrJRdQI8zhVHHl3lUVtHbnbnKqB6wmfMpRlhfdISsvLSbK9PMmc_euSyN-sd-2bGn-_"
-    "gGUfq3l5kvyhddcwhbA81KTrTW8cl3qg9lDnjhfL5ZpgW9qTt_KDnrP9xgQ8e0m-y39YFLsxN4hxoEkkayYXcbg-"
-    "TLGznukoHjpzn3qgqJTV2ogJXaK6ctqTgxKUoPyfUeqmx4szeRJuj3josnbUu0O57kcXXX-bi25IozxSONDzF5jalI4";
-const char *gzip_bomb = gzip_bomb_arr;
-const size_t gzip_bomb_size = sizeof(gzip_bomb_arr) - 1;
-
-static const char gzip_arr[] =
-    "eJztxT1LQmEAgNGXMJEIukNI0pDS0hAUSiCa4uZfELqgQwUFuQjXhkDFisrARajBocmISFA0GstBg4owopuIgdAiKE0SfkSBf6HB5TnLmYnpxMBv89"
-    "ExVnBN7pWvll_ePZqMpPo2Fg6dT-GQdfbA_zH_eftzVE16g8l9Ze7cP33ZTn2dlPP9XEfpXbyeqtnrm50HS7G0dbzyZpPNSkW_"
-    "tLmeCCT0pbrzO21otbfjqqyNuIySTjNCRERERERERERERERERERERERERERERERERERE_2k3ZA8YhRBhcb_"
-    "2XHN7zoR5alwbvfMtEhERERERERERERERERER0ZCqTzREVzKNyvlV8Qf1dzn-";
-const char *gzip = gzip_arr;
-const size_t gzip_size = sizeof(gzip_arr) - 1;
-
-static const char sqlite_sample_db_v3_arr[] =
-    "olFZ1MdfY0Abj+LtR9ft6DTZgEHW7/"
-    "z7yAhC07NKr7pBAHWkbQyMPtyVSIW7PLdVaQIHYwLgd7ovQSzD7eTINxZh6Nxpwa8HTynvjhHIdQhtysRL9m3mTEj4mbjU48zq+jcFdsnzG+"
-    "GJAzk5MQRCi+NyDWGYnBoPhiiPc4QBoFgKoYGIhQwfVci5kf2fYIQrCM1H7QQZ8RHoqCuQ3IjMpZjt/Gzqy+P8kn2PXKWHG8/y5eDc5nQCk/"
-    "XhkY7A9Wl7ZUsgK7mkA1O1VHp9X0Kz/WCuWhsULuUSeshXmJ1zKciUmTMhS3T7/"
-    "mc2jVrR00SyT22XwpL6dRwaNtUXVJKJwtzxrTHTxWq33KdxKXFlMr5ffbWsOfpkEHlpeKybJF70bzOgKUF5pmCHOll+3gfZcJOVFI4DvHFSnt/"
-    "Y3XlhJDrHliXeXcfsSUNzpBsBO+/+O/MMGLi2m/kJ9GHXGpieJsHPSQG1RMNqe84QIymLEwnGptg/"
-    "I+gw6xqFsUqBo2Z3Hllgz0t9GqvI1ENZr16nwf9hUGMEpj2pdKGR+eSSHMac3BJaiGgoKE7BfUjaaXzI5a8FfZTyl+"
-    "JUMf3ou2YBuO9fiuR1AhpAyydLSAn93OdbIF+VUHea8944nyUQB2k6idA9zfOFOVPZlaWC8/KxJeLDIAYYv3s+aK3kz/"
-    "EyU4SSRvDLXhMdSrkNaGM4zbYc/8r4WJSAIgFq5yg3jidRq0xJ3eb+BHs6pCTz3ql50BtPd2ngzz2y51kiW2xVIP3K/"
-    "hI53loi9UWTIYQPxtWl8RBWD2J1rbMsG0c8CbCQAo3u0SJ2A+4gQ2q5ZRPl9rp0IEgHwhg1xtjZhz7Ss2X7HO9Bfb/"
-    "ioe6ZlRPPhLR5AueL6YjretqfCs0C6Y3D7Ax6ho3vae5a2HCzasqgD42OSn6YwSq4d85AurIf4GhGykmQnkHPiblLSi9LE8w59B1a9IQgrdnVHqto3"
-    "IYYJELdEHrEOzDOsHoXM3aiXi3kURyDw+L/ljvIwWpgrVic94CCBlwUkUCtbw+n9Gfn06GE4V1J7/"
-    "omTHBKJXfd1hEDBegyEf6l2mx6p6zWCRcBEIZNObMRsX0P7P9A09/ZyzQPAMJrfI25fy2PvEuHWpVmbFBm7Xsf/B/"
-    "pGuP3j4td+e62Fu8yhMpSNhPclCdz+MXO9yCCondvU9DUzPQxU26yQhYNasu4cLipXCYpNhc9+dpLakoqlBB7Qq52R1S/f3PgsbTYy/uJs0NwoQV7/"
-    "aQTgjWutM5Nb+"
-    "yxxebr6dfRG6HfN0AXvLq8ON2FimTK6mXa9YI5YXKROAX4VssccBw1dGM8RaaAvMKQKEjfzwcPMo0C2mCcfFB2Nkj3A2SLvWdL7APgkEnGATDjs8Kn"
-    "bbI5Idr9ReU38zyB2l3Ys+CVbl6dvXdCu9QMS5t9Ez6e6zu3ZJKbMDEmrD7+0QyryYwSTFMDR1LJsbHavYzfGm/"
-    "bAC2yFlwGuN1nqpxvHCrFJH4Gjvs/"
-    "IVsX1Hnr1IZFJdIaMI8DRkksKijAYxxizan62LjrGQ8Lx4SGEYqTKU182XJdG9joSEuIvh2BaLZwu6AGEO1BbtJpGeVUiupqORQMGD9+"
-    "jOzo3KN0u3amsHO9QASeJ2fhMM7ej7C2aBnUrsX3zayB+seS0PTpZPqhI4IImvRmuwWiWXlWqhuEMSrnfuUN+"
-    "oZ8LfhsUPrRriUsuM7ZQJhzeVHGLXKeO0uFhL2KW7EQs7bdnOtQw6vw2FEe6bzYUZdR7SNWvRpN1BFm48vSLnLyhjtRN0ZAI5j6FNB6sWGVXRp32uH"
-    "p0BH/Nuss6Q+xcn0ZhBKIUGPtVtyUZcgoy1JT23JusETl83vsEx5NkWhSUCdhThOyB/N7fl4lRgfF0VxRabLXa0RcPlF7m79R5Mn/+/mveGQtd/"
-    "3UurCuDd2bjJ2ZL+GNgwGpliPpjPa1LHDX7WXi/yyYHHjGq7uYuauQql0ID/"
-    "bZY4kx9W0YTpzeKRd3Y4FZifDtFkxbosTFsUL+svpNSmQLuGptxPrfIHadHBkwP4g5CvAswfos6FGAx+ntE9+"
-    "jVt9WF6n73F7awQY0RxKOPRz0ESRPI3Z3r5m4AXoaEWkzqBIcCsYLBf3gIuxQxCbo5kMxhj7+qAAbJlqUTZQZS21ZbQS/"
-    "CRxXEv5TIYrQv0h004kzRenULxyM2fVgnPF09eLCW1wIeLfy5q5ShfkewBJ2xoqon5Pq9MgyG+EkwZ5ZphjGTEQkRlLfVNeD6s+HBildUL1+"
-    "sQkICmRxIKhubnrJ0WpD4EkpvTOEZkFalGjkp3t1L7KeBseX/qFfCBlcNThLbBVZQMRLGeCYZ/OZ1Z1qkN/KB6ltAjI+ZALJ73G/"
-    "PzPF19S0vUmka0Aeq+Q13X1fD27HGTIW2zVhgQvgIk+shlQWLCDn9qDwNxyGWNplR8dIsnl1lAIVXokjA+qIz3RNAkwDkk60x+"
-    "rZKJSjLiy3RtbJ6ZTsDl4U6NIzln1zbPkbS6ttbtoI86aBtSQribN7zoG3zG9pkdr+"
-    "hGso6jP7QhhEVskGfdbHTtOkTOhGqcrg3jALtv5J4fTNK4kzyjJRYQ0HVuWtPMvP022bI4uA8SbjnWkH7Z2Kt8LujV9ji9RDs4+"
-    "Y3bQn2TlPiShyPeOJ0f2Tlaeo2liySol7PZT1rbDjr8Zp/"
-    "UIbkyeEl0BIg8O6BAJ3h8JMXRQTklu23Fkl6PMHsGHcz0GE58+WJMgM6RyCgc2ka7L4YeGu7mPjJRSo3umdhi2GqOfSgELUzWr/"
-    "gVmFljsiHJkg5xMrksDmGoG+kXv57iyNi8Dphr6SsT3lFdSG4Tx9WeMSSNOngSyK8yzJStqUmq5wiTNeBeIW2KgSQMzGETMpMVZqoAX/"
-    "fHdgAjYxwooM15G2R98Vs1xlX5fjEHz1DNJQ39pSPBJInvdZAQqDFVzD9A4IktiIthEIWj0RemW+HRQKQ/"
-    "rODTVeZB2bY+IAx+qr7JyUPkYziNWQKnXhRUm1t4ZJarr1Ud6/"
-    "G6RxdNjt3pX1HBfn0t4+6nOuWA7MAsdA+EvQjXd8XPLPEFReAHnIXqE0DAAQPmRdcnfDCfXtPQv+"
-    "hD82s4sQCsaqA1dwV3CsRzhfWiZlQ5iMPJtjU0A3UgGPg+"
-    "7MAXNfPUV8eiRyCwC4fEnSkj2LLMf1de1wlyjosXcM6GTMroBo8wFsUWxdTSGA1xsPWDAL3DWi6szxVLp7EGNssLZ8OWKHALYy9P6bN5qUS23FahYg"
-    "Tu6jVCGVAuCGwnaPLGi4yUdQIOTvTEgJiPNf8jZ2wKiOZZ4belGxh6H7Y54kfVCZwxGdhcyktUV+H3TgBZmR70x/"
-    "SF6ct1GeZd1W9IxEJTTcRc179RNcRk4pd5KjwyIO6/WFOtSRKOmPs+cb9bArVV/"
-    "HjeIDM0rvahdWvqjMo8q9BSyzjvrvLrSxkaLskfhu3KHnfftGZdiYypGsngBFN9RDmSHknNttmal5tnWZP/"
-    "5RhfDnfnDwCq9ARP3USRkaUpKl87l0qzZkHnSoKBUpcQ70qrhrMGyQyn7dobM7mHw8UZ4fOuCxY/vEQ3dql4RsczsaqHsl3z/"
-    "AgXKhs2+MI32L9lC5RSz/"
-    "ix2uzbExljLdYgUe6aNsUqKbYkZfugFEbTtwHXPsrSioXuusKGX00muMADmvxpqrVt63omwKlK4IJ9la10DCsJiv5NOFsIZhPTIb2fzJUR6eSRyNFL"
-    "Wt3IKpVTwsLXqI/"
-    "biB6vInyvJvqNWgc8wSIQWvngtSyJugYmFG3k9GuuJQ6VdbafPAR5BCeuJy8JvX0dANbaRvsZPsLWa7nNCM2iwmtkNMMLdQe6+"
-    "DdCHz5XGwW91spC1pORsSTM/"
-    "pegYHDptkICvczJSSTwDs1aATBZGMfVtKzed4Vxx9nxN23uqwcVCwDljkRB7AXbFaCbRLi0glGmK8CaeGq+KAuLj7eAm8w6ihS9IWGAD8oGhVyJR+"
-    "D4U4ah5YX/GAysJA8aK3g0xKmUfveHTUQKDs0dzdTOrTr18++t7IqK1x2jDCmU9/"
-    "C6saN75gcZr4Q9QyULNHFgtXCpydThPIMBJ47jZFuvFSmoBbqD6m8WUjZjDJ4+odZISIGBzUoCKut9jjok8o2RzK6oY265stKOE0Ud7EI+"
-    "7rAtQY71LhsUSC6Sb4QbIsJlG7vb/"
-    "l0fF6Kh5IRGrzNVBJFsd+0ws6JQxDEVFSuO5UZVviYt0GHS+Qtt4EnoWbARCPCQfq4EiZJSbUhIPGWLoh6ozv/"
-    "U+5LArEPD7JcAXvpe+ZwYyrS5c8HWtMng7B7eiNdfjv9HtpfTVidxawNwhgC4igZ18yigsRJvyGuqpCipA/"
-    "p5sfXFb4hibSZsif7HAPja0G4CFxGL96Vxx1eKiSCNyLYL42m2slvgI6rvYKFTVvdQtBFhiav7vg+"
-    "Oz2wwzYRWRlHsIdOfcNws8XAgTL384gT8km9UtO4WtUyJZL5xDb2iWGsSoqRCAFiNYsxpwcCfZa4p5YP8E7PX4tzdUJ+"
-    "m2XNxuM7esUyjDouRnVu49PP78Q5mFAsKUZ/4mwPGlzInGVr8g7piw4FueB5qFfCHibo8gsC355UnT6WB9Gdu2h4+dsI0wh51a5UW7/"
-    "GY8zQ7VDmorGfSiELm3SpS3xvRhBOHGBLgn68hyFNMpzg/"
-    "XfJkEUUlVvayVpmJsKqeQEVwPzLW02XkvsFmjY98JIIDg4PqRw+2vWTQu4yHDx5AwtAYZaCDUYS10OjYZgzVp0NqlA2Lmc4oRYRumyr8w+"
-    "gNFxX16vxrG6DMAJeMtYyACbiuAp3RsW8G3rAWifNmTx8mEkTzZHW6Xqt9nD1qPeVxCZMq+wq7LH333FAVFW/"
-    "V6qccLaqy2uquIW41fWrKW3MkrD3fKqjdGSz0rj278X4kLakpOVvr9ww6FNk8wRL0TcfRxurhhLtRLQp6zgyu5BFA44xFIbq+"
-    "0Yvmics8iY9He45gODgaWRB9vfM8JhpTpI6c6ovoxL8fOuWEPzadjg388Lhaqv/"
-    "CJa8IVbKO9BBMrrHQVbF1iVKDO5UrGR+4LY7NSe7Jt5vrwzhFPaOhDw6VoL3p5jUq3D7ABG3tKbcdrrL+"
-    "lCJ44J0T0fYMVlzFlRjc75oNqPiKDyKOI1e9Fvw9ybZw5b0iU0kyBf1hW+JTtgr/qsszaWe/mHDdGVNXk6OBBCzECTrUj4WdHGi/"
-    "VorxztlwJ5GXoTTdFMhckg//ExJweev/"
-    "s2aYgKZRSgZVkpKHVqyNTVuEaB8UQuPhGGwEerawjiK0hRJaF4Bg9UtJMPuIu8V1bis9oCjWKVcqgiyam4t6N06O5tM38wfPTWtyD4b8ZUDl0koAfa"
-    "n9+uE1mJQw1DSMixM4QDnGXFA9bxgt/"
-    "LvKWdz0MwN9wgI5yhYtmHau0l5lO2WRsRhZvJJof1z3LvZCEqQB2F2z7GHuzmmNnyvZ8QqrnV9EBScfY25vjjBisylp2dorLh7oI2W4z8RsvegvXn4"
-    "nsh8bsEj1DJtXNRIHuhQGY9ewKOYFTc3zUK1NJaNpzBZmW8ccWYJYi6Mk7ZLfpL1A6V/C0AyePBAysg4r/"
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-    "0D4EjTxRXuEoDGkr1oYBQ8kVBj5KHyIkHCEEBAmrwA0pwtdOyzpRMj79IahmbNNuWftCHx3LklCpaD3Yo0pjTfML4ToJl5S2sQ8wvHsd960fr5fdXZ"
-    "EORmJtkLLgu5Ca6eiKf5GIw/yKSLUwY0F7rMvySfHB3PzBjJjgnt04MzGFg9vSEt6+OsRMKhV1eRGgPpLai6WzxcGY5vuiqw/"
-    "14TsoLKeHbkRO6qJgiJzo2HlDc2+MCrYNp31aeyro7WWQr/"
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-    "3z3ZsGaiLlyVSkDxgLmov1p23Qy7yI1TxxsGt4hVyD5kSJIxzoFnqT09wKhHHa1/"
-    "smUNIqeDLoo5L5e+TiBEGsiHWPcG4bsUWBF9NkbjFxp34tnO9RlE5cFALntzx2418tlQ+"
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-    "rxKW17GAJN5VVEotpmOPao4PJ/bi3x7Tt/ckZr8444ax/w2BZw0aLt/DgA6Kd04+MOr+pEpi9J3WHKvNnYGFWgYvSg0alOsp/"
-    "Nnwjo6OK6fvTOokwi78PxOy7+yQ2uWZOTzDkFnZ1Ri7X11X1MlAXqGehz+QfjtF2FcPVDLVFsAiLlt/"
-    "Di7LUUhzf3xitZHFkphtSE2ilrIgQAF7cPeRJBFM2MIXNhhlMfAgychBtUcPgzSzkdUbRpZ2pKNtpNZr9Xq5GQLIcKJ4MkBOBUeoduEBjWPxiGcYWo"
-    "tFatmZRoxiYAHxNTcN2FrQ0I9E12UC3NcaFTkqvCaBonx2CvBayKeXuewhxbLB503TQi8E9FSrsi9efYPhGDqqX2EsJD/"
-    "3DHOg28NZvOpZGLs9AEWpgrl+x/"
-    "Wk6mXCxM++OZxA8K3MGlQuG7Gmodcz6FHh9mqoIZZh6OrObpBUrJfdoZeWXR+"
-    "GVt8zi3m0oPlAhNUyi3a6zeZcvqfwI3M7zoXxGU2q0ETZgfCE26H9E+PNxes7mw4SwEl78lclmnNhUlZ5C4Y8v2YJnmFn8+a6WdrgjTU2awQ/"
-    "osSJFtKuNgOw9n72uyhPOkEB4qcVZ1A=";
-
-const char *sqlite_sample_db_v3 = sqlite_sample_db_v3_arr;
-const size_t sqlite_sample_db_v3_size = sizeof(sqlite_sample_db_v3_arr) - 1;
-
-static const char sqlite_sample_db_v4_arr[] =
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-    "9d9v+"
-    "eMJFKyUxyxkeWjwLJiAEa1fQtF9C8RVtmiTUweBQFmuAKlIVjTHfM0C2IspViXoBYMElb6CpuwKIN0XptduYh3GPC2IBjBET0eGWycgrOPCeTSe8PC"
-    "SfBtaX7dlCOE3zTeRqR+iP3G5Tb67xB2e8CDp4EbPJiXbNwKMyAek73D8dVqeFcjtuUfRkah/Iu6hIkBLKiS02ut/"
-    "jD0b1Sy5RyR7NDiCOKVmqnwwKDrcDbofPYmll8ilK4/qzcmzRBJKhxJeaRRy1X9UvzSbYaj22wCKrQLMqHeZ7EVOsPXJEhLVsSWnym/"
-    "vkl9mLxhiDUhvP4pNK3KjmoK1bTEIpqABLhQELQjl+EzBDt+"
-    "tYjeyZ0vCXL2JUYScZcWHn0kD1jwIYGm7r4QIfEMOwwPkkIcsIUOQjW2ICqCVfffoP5JQO9e5352tpAYcUYyiagGKDYtt1yDmFqqvL8Jn+"
-    "r19aJHMsQgUgE7dEusHXiefgeaVRmmI8gW88xvYqyPcM5dz9t8eU7jl7ipq4EPYPOl6K4p0OU/"
-    "Ro2CJTekwHkaouF2T+"
-    "L9WOuRT5WgGsUpcvmY7xDtmS85Iy3uQHZuNeL6FWSCJZ8qjbFbx3zKrlSoUwef86H8OGNA4rYmpKaEpQAsiI1IUi21q26HlgjPE9+"
-    "m2M3HZH72fnJ6lZw6v+vy7Jz/M80nIv0A5A67DE/"
-    "Gu7FPHx4NmxLPbU3pWMIg8fUl3uB5Pmk6hL+Gxi2+W+jvpLk31Qk7HPDX2H+bdTEgetpKzgjcoh/"
-    "XbvrBS82jWgHpWzw9vlbd2FUKbT20ULRE9zSHFYbdWmqchJc4Ma6iNY8rDgH4slTCt3koEaIXTwCsBguVS9a/X1QLUcWlBzt7ot5hovXQUuKd/"
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-    "348785aLf4O3HwZSXfdu2juvZTMkksahRiRCQgUDaB9izTwe/PyfRYv/"
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-    "PSkh0hnW6a1rwhb/r1QFBrhChatbFGh2fJ0nyGV5i9+Y5EzB3hdgyupU5m+rulS2DngmhEl/PQ7L7ALIZksbYwi/"
-    "1O5qjRKGf8pp93LhMysP21f2GU/Yl6JX2QZT9139ag1M/Kh/"
-    "pqYTuqrLsE38Lc878Q4kcBX45tklajnY6wGCzqSCGnhDu79SvmgE8Ymw1klxen17FDtgjqJ9ZnkJsd4RoES9kGWyI1zEKFFVH7yq0K2Psl+"
-    "ft8MQjHXNn80H1plnpQ7SRINJZBZFq8PPhRVuiJdO1+byGy/"
-    "J4TLN4jrc0CVIufAa60SOqU2S236nXsF0fW0b1V8zrgEK4qULe7EA+ubk4RxHZIotRffpHmZS5enm/r+ENZL8lECFnnUPbOQ5VhL/"
-    "J6ICCsXykofIKiYGcegY+"
-    "GQD0QvqEXoFDQQeABbIzeGB42BqQRJzMFnBCzHoSaCDOrrmJpvn1aPZoJrdejZ6DRkDLauuNretHKXyqQNvoj6jNZzrhKWLSIoqy4Sk6bec2KGjX2j"
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-    "4xhqP8Tmed3gfurVkremgANwmJO0cn3/CHI/5tzsJiN5/MN2zlADJGMUYASvOPNUvxtS7rfFu8dpRpLOQt5nmlx/Trtdomixj/DlHCu0hyK9j409V/"
-    "SpChv3oHn6x5h52IMjULbSyUDYbJigvTJVWJd1CZ9Ui34rKqNp/"
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-    "AXBPCIADMlnRr7ClxFxJeu8M6QA4J73WyaWIuRMN3xzcZ9xzAY1xQUMx8gF6MRtB7CdKB/sRSDy0+L0XN7dXhKDtlUykputDeNj4/"
-    "ff0h8YLW3p+aozOh42a44OhPj6IwkGee9R09pnRGPooY7ytNMpoXOMnbZ4UJAwz1yhDKtHV5DJZD+ubjN92SDrAjpDjwjEVmde9F4kbPPUlJ+"
-    "jDIeeVrAOUtmlL0owMk4yhRDYZzLkstHqsLUDKc/"
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-    "l9nEdCYT5PvG7EayejuXvEXkK2fUWlhm3BXCIcQI4M18kN95NM+fTFTpC9espq12gyh6vIJv4e++"
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-    "ljlhI0JpRcqLgJEoaYoWOLgNcrTiCUSVMtHEdY1OfwJlHWOXfQkXGBLjNnseVGEHUe2m2xSG2EyRaC+Jph+jfLlfbu3WPEh1ZgS2sT6R+"
-    "9cn60m2YoyADp1M8ZaJ/huIwbcpiE3fPtVlPgpoiuXUpFpFAPRCdTQ87vK9dQbWwwfgttgbNQW9LwxpbTxtmUdGFzokw9tV/"
-    "joebqeinBw0R2iAtESjbWyQKbhbRO9mJXVzb5IDkVRH6mkVLdkpShRAGd3EnBQH+et75wPZ5HOuSDWFVDg1GuJs3j/"
-    "8vCZI334ABSiPKuvyNGnkWAxxsCAiU+ekeFJ8GTK8qXxRLGhQRiDCM1ly2cB9TXqV3dT5+"
-    "mgXrxbdXUPV8oqFwJhBk4WGMbzghfEMPbrn60wL12Rou2w3SnmHbPOcHhu91ENmCRTN0gaXYzqE77fQ4OUfTwQR5xTtyH2Z5VSZGl6Z5tR3KunrOg7"
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-    "LwABF09LWdz4rnhjMviM1ScKkv4n7Q2EeI/"
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-    "5bC7iJ2r1ZXh0lUeVDUwXgM7EHQMqTMwB0MxjJLsIWtGpE329hbAJvSvJWI24InXoa4M0jGd+x3ULJ3EUITYiqf1k7c+"
-    "nKYd9jlaWYkZKZb7xHlNcOrVWLYl9HqiiFICQpkcWfbbqElaUUmWWRrC2/RhQZQ/"
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-    "Vp0HSePyXS3xRw5Aqa766McOpfDXMQe/"
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-    "8+mW6hF6TVJ2Aj/NJ4+JmdM6gdVp0QHBaEAgh5CGQ/"
-    "piPFthNmvCRpeDroD8tQD24C6ssTDl6pysRNorhzO261iGCEe+"
-    "uCdhnoBjsjZzfcPYsKEQN3uMR6s17FGESaCbv5Dhm0RzInu8YtUFevKxvAsGoZqiOXxhvA6Amvo2PEWyQXD2lS8a9YB1MvUTkY4aAXQZxynRb6STnu"
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-    "7lgXC9NqwD5VfQNcFDn5ybgVbWeF/KF4k7eHA4C3pPTpgEK4UQKqZeUXuZap6xUgmPkHAD2tY5S3KhaeiI1GURDk1LVEuYMqQYg0SszamHEf/xJHM/"
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-
-const char *sqlite_sample_db_v4 = sqlite_sample_db_v4_arr;
-const size_t sqlite_sample_db_v4_size = sizeof(sqlite_sample_db_v4_arr) - 1;
diff --git a/third-party/td/td/test/data.h b/third-party/td/td/test/data.h
deleted file mode 100644
index b096b7631f..0000000000
--- a/third-party/td/td/test/data.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#pragma once
-
-#include "td/utils/common.h"
-
-extern const char *thumbnail;
-extern const size_t thumbnail_size;
-
-extern const char *gzip_bomb;
-extern const size_t gzip_bomb_size;
-
-extern const char *gzip;
-extern const size_t gzip_size;
-
-extern const char *sqlite_sample_db_v3;
-extern const size_t sqlite_sample_db_v3_size;
-
-extern const char *sqlite_sample_db_v4;
-extern const size_t sqlite_sample_db_v4_size;
diff --git a/third-party/td/td/test/db.cpp b/third-party/td/td/test/db.cpp
deleted file mode 100644
index 73f57a4179..0000000000
--- a/third-party/td/td/test/db.cpp
+++ /dev/null
@@ -1,809 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "data.h"
-
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/binlog/ConcurrentBinlog.h"
-#include "td/db/BinlogKeyValue.h"
-#include "td/db/DbKey.h"
-#include "td/db/SeqKeyValue.h"
-#include "td/db/SqliteConnectionSafe.h"
-#include "td/db/SqliteDb.h"
-#include "td/db/SqliteKeyValue.h"
-#include "td/db/SqliteKeyValueSafe.h"
-#include "td/db/TsSeqKeyValue.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/common.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/FlatHashMap.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/StringBuilder.h"
-#include "td/utils/tests.h"
-
-#include <limits>
-#include <map>
-#include <memory>
-
-template <class ContainerT>
-static typename ContainerT::value_type &rand_elem(ContainerT &cont) {
-  CHECK(0 < cont.size() && cont.size() <= static_cast<std::size_t>(std::numeric_limits<int>::max()));
-  return cont[td::Random::fast(0, static_cast<int>(cont.size()) - 1)];
-}
-
-TEST(DB, binlog_encryption_bug) {
-  td::CSlice binlog_name = "test_binlog";
-  td::Binlog::destroy(binlog_name).ignore();
-
-  auto cucumber = td::DbKey::password("cucu'\"mb er");
-  auto empty = td::DbKey::empty();
-  {
-    td::Binlog binlog;
-    binlog
-        .init(
-            binlog_name.str(), [&](const td::BinlogEvent &x) {}, cucumber)
-        .ensure();
-  }
-  {
-    td::Binlog binlog;
-    binlog
-        .init(
-            binlog_name.str(), [&](const td::BinlogEvent &x) {}, cucumber)
-        .ensure();
-  }
-  td::Binlog::destroy(binlog_name).ignore();
-}
-
-TEST(DB, binlog_encryption) {
-  td::CSlice binlog_name = "test_binlog";
-  td::Binlog::destroy(binlog_name).ignore();
-
-  auto hello = td::DbKey::raw_key(td::string(32, 'A'));
-  auto cucumber = td::DbKey::password("cucu'\"mb er");
-  auto empty = td::DbKey::empty();
-  auto long_data = td::string(10000, 'Z');
-  {
-    td::Binlog binlog;
-    binlog.init(binlog_name.str(), [](const td::BinlogEvent &x) {}).ensure();
-    binlog.add_raw_event(td::BinlogEvent::create_raw(binlog.next_event_id(), 1, 0, td::create_storer("AAAA")),
-                         td::BinlogDebugInfo{__FILE__, __LINE__});
-    binlog.add_raw_event(td::BinlogEvent::create_raw(binlog.next_event_id(), 1, 0, td::create_storer("BBBB")),
-                         td::BinlogDebugInfo{__FILE__, __LINE__});
-    binlog.add_raw_event(td::BinlogEvent::create_raw(binlog.next_event_id(), 1, 0, td::create_storer(long_data)),
-                         td::BinlogDebugInfo{__FILE__, __LINE__});
-    LOG(INFO) << "SET PASSWORD";
-    binlog.change_key(cucumber);
-    binlog.change_key(hello);
-    LOG(INFO) << "OK";
-    binlog.add_raw_event(td::BinlogEvent::create_raw(binlog.next_event_id(), 1, 0, td::create_storer("CCCC")),
-                         td::BinlogDebugInfo{__FILE__, __LINE__});
-    binlog.close().ensure();
-  }
-
-  td::Binlog::destroy(binlog_name).ignore();
-  return;
-
-  auto add_suffix = [&] {
-    auto fd = td::FileFd::open(binlog_name, td::FileFd::Flags::Write | td::FileFd::Flags::Append).move_as_ok();
-    fd.write("abacabadaba").ensure();
-  };
-
-  add_suffix();
-
-  {
-    td::vector<td::string> v;
-    LOG(INFO) << "RESTART";
-    td::Binlog binlog;
-    binlog
-        .init(
-            binlog_name.str(), [&](const td::BinlogEvent &x) { v.push_back(x.get_data().str()); }, hello)
-        .ensure();
-    CHECK(v == td::vector<td::string>({"AAAA", "BBBB", long_data, "CCCC"}));
-  }
-
-  add_suffix();
-
-  {
-    td::vector<td::string> v;
-    LOG(INFO) << "RESTART";
-    td::Binlog binlog;
-    auto status = binlog.init(
-        binlog_name.str(), [&](const td::BinlogEvent &x) { v.push_back(x.get_data().str()); }, cucumber);
-    CHECK(status.is_error());
-  }
-
-  add_suffix();
-
-  {
-    td::vector<td::string> v;
-    LOG(INFO) << "RESTART";
-    td::Binlog binlog;
-    auto status = binlog.init(
-        binlog_name.str(), [&](const td::BinlogEvent &x) { v.push_back(x.get_data().str()); }, cucumber, hello);
-    CHECK(v == td::vector<td::string>({"AAAA", "BBBB", long_data, "CCCC"}));
-  }
-
-  td::Binlog::destroy(binlog_name).ignore();
-}
-
-TEST(DB, sqlite_lfs) {
-  td::string path = "test_sqlite_db";
-  td::SqliteDb::destroy(path).ignore();
-  auto db = td::SqliteDb::open_with_key(path, true, td::DbKey::empty()).move_as_ok();
-  db.exec("PRAGMA journal_mode=WAL").ensure();
-  db.exec("PRAGMA user_version").ensure();
-  td::SqliteDb::destroy(path).ignore();
-}
-
-TEST(DB, sqlite_encryption) {
-  td::string path = "test_sqlite_db";
-  td::SqliteDb::destroy(path).ignore();
-
-  auto empty = td::DbKey::empty();
-  auto cucumber = td::DbKey::password("cucu'\"mb er");
-  auto tomato = td::DbKey::raw_key(td::string(32, 'a'));
-
-  {
-    auto db = td::SqliteDb::open_with_key(path, true, empty).move_as_ok();
-    db.set_user_version(123).ensure();
-    auto kv = td::SqliteKeyValue();
-    kv.init_with_connection(db.clone(), "kv").ensure();
-    kv.set("a", "b");
-  }
-  td::SqliteDb::open_with_key(path, false, cucumber).ensure_error();
-
-  td::SqliteDb::change_key(path, false, cucumber, empty).ensure();
-  td::SqliteDb::change_key(path, false, cucumber, empty).ensure();
-
-  td::SqliteDb::open_with_key(path, false, tomato).ensure_error();
-  {
-    auto db = td::SqliteDb::open_with_key(path, false, cucumber).move_as_ok();
-    auto kv = td::SqliteKeyValue();
-    kv.init_with_connection(db.clone(), "kv").ensure();
-    CHECK(kv.get("a") == "b");
-    CHECK(db.user_version().ok() == 123);
-  }
-
-  td::SqliteDb::change_key(path, false, tomato, cucumber).ensure();
-  td::SqliteDb::change_key(path, false, tomato, cucumber).ensure();
-
-  td::SqliteDb::open_with_key(path, false, cucumber).ensure_error();
-  {
-    auto db = td::SqliteDb::open_with_key(path, false, tomato).move_as_ok();
-    auto kv = td::SqliteKeyValue();
-    kv.init_with_connection(db.clone(), "kv").ensure();
-    CHECK(kv.get("a") == "b");
-    CHECK(db.user_version().ok() == 123);
-  }
-
-  td::SqliteDb::change_key(path, false, empty, tomato).ensure();
-  td::SqliteDb::change_key(path, false, empty, tomato).ensure();
-
-  {
-    auto db = td::SqliteDb::open_with_key(path, false, empty).move_as_ok();
-    auto kv = td::SqliteKeyValue();
-    kv.init_with_connection(db.clone(), "kv").ensure();
-    CHECK(kv.get("a") == "b");
-    CHECK(db.user_version().ok() == 123);
-  }
-  td::SqliteDb::open_with_key(path, false, cucumber).ensure_error();
-  td::SqliteDb::destroy(path).ignore();
-}
-
-TEST(DB, sqlite_encryption_migrate_v3) {
-  td::string path = "test_sqlite_db";
-  td::SqliteDb::destroy(path).ignore();
-  auto cucumber = td::DbKey::password("cucumber");
-  auto empty = td::DbKey::empty();
-  if (false) {
-    // sqlite_sample_db was generated by the following code using SQLCipher based on SQLite 3.15.2
-    {
-      auto db = td::SqliteDb::change_key(path, true, cucumber, empty).move_as_ok();
-      db.set_user_version(123).ensure();
-      auto kv = td::SqliteKeyValue();
-      kv.init_with_connection(db.clone(), "kv").ensure();
-      kv.set("hello", "world");
-    }
-    LOG(ERROR) << td::base64_encode(td::read_file(path).move_as_ok());
-  }
-  td::write_file(path, td::base64_decode(td::Slice(sqlite_sample_db_v3, sqlite_sample_db_v3_size)).move_as_ok())
-      .ensure();
-  {
-    auto db = td::SqliteDb::open_with_key(path, true, cucumber).move_as_ok();
-    auto kv = td::SqliteKeyValue();
-    kv.init_with_connection(db.clone(), "kv").ensure();
-    CHECK(kv.get("hello") == "world");
-    CHECK(db.user_version().ok() == 123);
-  }
-  td::SqliteDb::destroy(path).ignore();
-}
-
-TEST(DB, sqlite_encryption_migrate_v4) {
-  td::string path = "test_sqlite_db";
-  td::SqliteDb::destroy(path).ignore();
-  auto cucumber = td::DbKey::password("cucu'\"mb er");
-  auto empty = td::DbKey::empty();
-  if (false) {
-    // sqlite_sample_db was generated by the following code using SQLCipher 4.4.0
-    {
-      auto db = td::SqliteDb::change_key(path, true, cucumber, empty).move_as_ok();
-      db.set_user_version(123).ensure();
-      auto kv = td::SqliteKeyValue();
-      kv.init_with_connection(db.clone(), "kv").ensure();
-      kv.set("hello", "world");
-    }
-    LOG(ERROR) << td::base64_encode(td::read_file(path).move_as_ok());
-  }
-  td::write_file(path, td::base64_decode(td::Slice(sqlite_sample_db_v4, sqlite_sample_db_v4_size)).move_as_ok())
-      .ensure();
-  {
-    auto r_db = td::SqliteDb::open_with_key(path, true, cucumber);
-    if (r_db.is_error()) {
-      LOG(ERROR) << r_db.error();
-      return;
-    }
-    auto db = r_db.move_as_ok();
-    auto kv = td::SqliteKeyValue();
-    auto status = kv.init_with_connection(db.clone(), "kv");
-    if (status.is_error()) {
-      LOG(ERROR) << status;
-    } else {
-      CHECK(kv.get("hello") == "world");
-      CHECK(db.user_version().ok() == 123);
-    }
-  }
-  td::SqliteDb::destroy(path).ignore();
-}
-
-using SeqNo = td::uint64;
-struct DbQuery {
-  enum class Type { Get, Set, Erase, EraseBatch } type = Type::Get;
-  SeqNo tid = 0;
-  td::string key;
-  td::string value;
-
-  // for EraseBatch
-  td::vector<td::string> erased_keys;
-};
-
-static td::StringBuilder &operator<<(td::StringBuilder &string_builder, const DbQuery &query) {
-  string_builder << "seq_no = " << query.tid << ": ";
-  switch (query.type) {
-    case DbQuery::Type::Get:
-      return string_builder << "Get " << query.key << " = " << query.value;
-    case DbQuery::Type::Set:
-      return string_builder << "Set " << query.key << " = " << query.value;
-    case DbQuery::Type::Erase:
-      return string_builder << "Del " << query.key;
-    case DbQuery::Type::EraseBatch:
-      return string_builder << "Del " << query.erased_keys;
-    default:
-      UNREACHABLE();
-      return string_builder;
-  }
-}
-
-template <class ImplT>
-class QueryHandler {
- public:
-  ImplT &impl() {
-    return impl_;
-  }
-  void do_query(DbQuery &query) {
-    switch (query.type) {
-      case DbQuery::Type::Get:
-        query.value = impl_.get(query.key);
-        return;
-      case DbQuery::Type::Set:
-        impl_.set(query.key, query.value);
-        query.tid = 1;
-        return;
-      case DbQuery::Type::Erase:
-        impl_.erase(query.key);
-        query.tid = 1;
-        return;
-      case DbQuery::Type::EraseBatch:
-        impl_.erase_batch(query.erased_keys);
-        query.tid = 1;
-        return;
-    }
-  }
-
- private:
-  ImplT impl_;
-};
-
-template <class ImplT>
-class SeqQueryHandler {
- public:
-  ImplT &impl() {
-    return impl_;
-  }
-  void do_query(DbQuery &query) {
-    switch (query.type) {
-      case DbQuery::Type::Get:
-        query.value = impl_.get(query.key);
-        return;
-      case DbQuery::Type::Set:
-        query.tid = impl_.set(query.key, query.value);
-        return;
-      case DbQuery::Type::Erase:
-        query.tid = impl_.erase(query.key);
-        return;
-      case DbQuery::Type::EraseBatch:
-        query.tid = impl_.erase_batch(query.erased_keys);
-        return;
-    }
-  }
-
- private:
-  ImplT impl_;
-};
-
-class SqliteKV {
- public:
-  td::string get(const td::string &key) {
-    return kv_->get().get(key);
-  }
-  SeqNo set(const td::string &key, const td::string &value) {
-    kv_->get().set(key, value);
-    return 0;
-  }
-  SeqNo erase(const td::string &key) {
-    kv_->get().erase(key);
-    return 0;
-  }
-  SeqNo erase_batch(td::vector<td::string> keys) {
-    for (auto &key : keys) {
-      kv_->get().erase(key);
-    }
-    return 0;
-  }
-  td::Status init(const td::string &name) {
-    auto sql_connection = std::make_shared<td::SqliteConnectionSafe>(name, td::DbKey::empty());
-    kv_ = std::make_shared<td::SqliteKeyValueSafe>("kv", sql_connection);
-    return td::Status::OK();
-  }
-  void close() {
-    kv_.reset();
-  }
-
- private:
-  std::shared_ptr<td::SqliteKeyValueSafe> kv_;
-};
-
-class BaselineKV {
- public:
-  td::string get(const td::string &key) {
-    return map_[key];
-  }
-  SeqNo set(const td::string &key, td::string value) {
-    map_[key] = std::move(value);
-    return ++current_tid_;
-  }
-  SeqNo erase(const td::string &key) {
-    map_.erase(key);
-    return ++current_tid_;
-  }
-  SeqNo erase_batch(td::vector<td::string> keys) {
-    for (auto &key : keys) {
-      map_.erase(key);
-    }
-    SeqNo result = current_tid_ + 1;
-    current_tid_ += map_.size();
-    return result;
-  }
-
- private:
-  std::map<td::string, td::string> map_;
-  SeqNo current_tid_ = 0;
-};
-
-TEST(DB, key_value) {
-  td::vector<td::string> keys;
-  td::vector<td::string> values;
-
-  for (int i = 0; i < 100; i++) {
-    keys.push_back(td::rand_string('a', 'b', td::Random::fast(1, 10)));
-  }
-  for (int i = 0; i < 10; i++) {
-    values.push_back(td::rand_string('a', 'b', td::Random::fast(1, 10)));
-  }
-
-  int queries_n = 1000;
-  td::vector<DbQuery> queries(queries_n);
-  for (auto &q : queries) {
-    int op = td::Random::fast(0, 3);
-    const auto &key = rand_elem(keys);
-    if (op == 0) {
-      q.type = DbQuery::Type::Get;
-      q.key = key;
-    } else if (op == 1) {
-      q.type = DbQuery::Type::Erase;
-      q.key = key;
-    } else if (op == 2) {
-      q.type = DbQuery::Type::Set;
-      q.key = key;
-      q.value = rand_elem(values);
-    } else if (op == 3) {
-      q.type = DbQuery::Type::EraseBatch;
-      q.erased_keys.resize(td::Random::fast(0, 3));
-      for (auto &erased_key : q.erased_keys) {
-        erased_key = rand_elem(keys);
-      }
-    }
-  }
-
-  QueryHandler<BaselineKV> baseline;
-  QueryHandler<td::SeqKeyValue> kv;
-  QueryHandler<td::TsSeqKeyValue> ts_kv;
-  QueryHandler<td::BinlogKeyValue<td::Binlog>> new_kv;
-
-  td::CSlice new_kv_name = "test_new_kv";
-  td::Binlog::destroy(new_kv_name).ignore();
-  new_kv.impl().init(new_kv_name.str()).ensure();
-
-  QueryHandler<td::SqliteKeyValue> sqlite_kv;
-  td::CSlice path = "test_sqlite_kv";
-  td::SqliteDb::destroy(path).ignore();
-  auto db = td::SqliteDb::open_with_key(path, true, td::DbKey::empty()).move_as_ok();
-  sqlite_kv.impl().init_with_connection(std::move(db), "KV").ensure();
-
-  int cnt = 0;
-  for (auto &q : queries) {
-    DbQuery a = q;
-    DbQuery b = q;
-    DbQuery c = q;
-    DbQuery d = q;
-    DbQuery e = q;
-    baseline.do_query(a);
-    kv.do_query(b);
-    ts_kv.do_query(c);
-    sqlite_kv.do_query(d);
-    new_kv.do_query(e);
-    ASSERT_EQ(a.value, b.value);
-    ASSERT_EQ(a.value, c.value);
-    ASSERT_EQ(a.value, d.value);
-    ASSERT_EQ(a.value, e.value);
-    if (cnt++ % 200 == 0) {
-      new_kv.impl().init(new_kv_name.str()).ensure();
-    }
-  }
-  td::SqliteDb::destroy(path).ignore();
-  td::Binlog::destroy(new_kv_name).ignore();
-}
-
-TEST(DB, key_value_set_all) {
-  td::vector<td::string> keys;
-  td::vector<td::string> values;
-
-  for (int i = 0; i < 100; i++) {
-    keys.push_back(td::rand_string('a', 'b', td::Random::fast(1, 10)));
-  }
-  for (int i = 0; i < 10; i++) {
-    values.push_back(td::rand_string('a', 'b', td::Random::fast(1, 10)));
-  }
-
-  td::SqliteKeyValue sqlite_kv;
-  td::CSlice sqlite_kv_name = "test_sqlite_kv";
-  td::SqliteDb::destroy(sqlite_kv_name).ignore();
-  auto db = td::SqliteDb::open_with_key(sqlite_kv_name, true, td::DbKey::empty()).move_as_ok();
-  sqlite_kv.init_with_connection(std::move(db), "KV").ensure();
-
-  BaselineKV kv;
-
-  int queries_n = 100;
-  while (queries_n-- > 0) {
-    int cnt = td::Random::fast(0, 10);
-    td::FlatHashMap<td::string, td::string> key_values;
-    for (int i = 0; i < cnt; i++) {
-      auto key = rand_elem(keys);
-      auto value = rand_elem(values);
-      key_values[key] = value;
-      kv.set(key, value);
-    }
-
-    sqlite_kv.set_all(key_values);
-
-    for (auto &key : keys) {
-      CHECK(kv.get(key) == sqlite_kv.get(key));
-    }
-  }
-  td::SqliteDb::destroy(sqlite_kv_name).ignore();
-}
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(DB, thread_key_value) {
-  td::vector<td::string> keys;
-  td::vector<td::string> values;
-
-  for (int i = 0; i < 100; i++) {
-    keys.push_back(td::rand_string('a', 'b', td::Random::fast(1, 10)));
-  }
-  for (int i = 0; i < 1000; i++) {
-    values.push_back(td::rand_string('a', 'b', td::Random::fast(1, 10)));
-  }
-
-  int threads_n = 4;
-  int queries_n = 10000;
-
-  td::vector<td::vector<DbQuery>> queries(threads_n, td::vector<DbQuery>(queries_n));
-  for (auto &qs : queries) {
-    for (auto &q : qs) {
-      int op = td::Random::fast(0, 10);
-      const auto &key = rand_elem(keys);
-      if (op == 0) {
-        q.type = DbQuery::Type::Erase;
-        q.key = key;
-      } else if (op == 1) {
-        q.type = DbQuery::Type::EraseBatch;
-        q.erased_keys.resize(td::Random::fast(0, 3));
-        for (auto &erased_key : q.erased_keys) {
-          erased_key = rand_elem(keys);
-        }
-      } else if (op <= 6) {
-        q.type = DbQuery::Type::Set;
-        q.key = key;
-        q.value = rand_elem(values);
-      } else {
-        q.type = DbQuery::Type::Get;
-        q.key = key;
-      }
-    }
-  }
-
-  QueryHandler<BaselineKV> baseline;
-  SeqQueryHandler<td::TsSeqKeyValue> ts_kv;
-
-  td::vector<td::thread> threads(threads_n);
-  td::vector<td::vector<DbQuery>> res(threads_n);
-  for (int i = 0; i < threads_n; i++) {
-    threads[i] = td::thread([&ts_kv, &queries, &res, i] {
-      for (auto q : queries[i]) {
-        ts_kv.do_query(q);
-        res[i].push_back(q);
-      }
-    });
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-
-  td::vector<std::size_t> pos(threads_n);
-  while (true) {
-    bool was = false;
-    for (int i = 0; i < threads_n; i++) {
-      auto p = pos[i];
-      if (p == res[i].size()) {
-        continue;
-      }
-      auto &q = res[i][p];
-      if (q.tid == 0) {
-        if (q.type == DbQuery::Type::Get) {
-          auto nq = q;
-          baseline.do_query(nq);
-          if (nq.value == q.value) {
-            was = true;
-            pos[i]++;
-          }
-        } else {
-          was = true;
-          pos[i]++;
-        }
-      }
-    }
-    if (was) {
-      continue;
-    }
-
-    int best = -1;
-    SeqNo best_tid = 0;
-    for (int i = 0; i < threads_n; i++) {
-      auto p = pos[i];
-      if (p == res[i].size()) {
-        continue;
-      }
-      was = true;
-      auto &q = res[i][p];
-      if (q.tid != 0) {
-        if (best == -1 || q.tid < best_tid) {
-          best = i;
-          best_tid = q.tid;
-        }
-      }
-    }
-    if (!was) {
-      break;
-    }
-    ASSERT_TRUE(best != -1);
-    baseline.do_query(res[best][pos[best]]);
-    pos[best]++;
-  }
-}
-#endif
-
-TEST(DB, persistent_key_value) {
-  using KeyValue = td::BinlogKeyValue<td::ConcurrentBinlog>;
-  // using KeyValue = td::SqliteKeyValue;
-  td::vector<td::string> keys;
-  td::vector<td::string> values;
-  td::CSlice path = "test_pmc";
-  td::Binlog::destroy(path).ignore();
-  td::SqliteDb::destroy(path).ignore();
-
-  for (int i = 0; i < 100; i++) {
-    keys.push_back(td::rand_string('a', 'b', td::Random::fast(1, 10)));
-  }
-  for (int i = 0; i < 1000; i++) {
-    values.push_back(td::rand_string('a', 'b', td::Random::fast(1, 10)));
-  }
-
-  QueryHandler<BaselineKV> baseline;
-
-  for (int iter = 0; iter < 25; iter++) {
-    int threads_n = 4;
-    int queries_n = 3000 / threads_n;
-
-    td::vector<td::vector<DbQuery>> queries(threads_n, td::vector<DbQuery>(queries_n));
-    for (auto &qs : queries) {
-      for (auto &q : qs) {
-        int op = td::Random::fast(0, 10);
-        const auto &key = rand_elem(keys);
-        if (op == 0) {
-          q.type = DbQuery::Type::Erase;
-          q.key = key;
-        } else if (op == 1) {
-          q.type = DbQuery::Type::EraseBatch;
-          q.erased_keys.resize(td::Random::fast(0, 3));
-          for (auto &erased_key : q.erased_keys) {
-            erased_key = rand_elem(keys);
-          }
-        } else if (op <= 6) {
-          q.type = DbQuery::Type::Set;
-          q.key = key;
-          q.value = rand_elem(values);
-        } else {
-          q.type = DbQuery::Type::Get;
-          q.key = key;
-        }
-      }
-    }
-
-    td::vector<td::vector<DbQuery>> res(threads_n);
-    class Worker final : public td::Actor {
-     public:
-      Worker(td::ActorShared<> parent, std::shared_ptr<SeqQueryHandler<KeyValue>> kv,
-             const td::vector<DbQuery> *queries, td::vector<DbQuery> *res)
-          : parent_(std::move(parent)), kv_(std::move(kv)), queries_(queries), res_(res) {
-      }
-      void loop() final {
-        for (auto q : *queries_) {
-          kv_->do_query(q);
-          res_->push_back(q);
-        }
-        stop();
-      }
-
-     private:
-      td::ActorShared<> parent_;
-      std::shared_ptr<SeqQueryHandler<KeyValue>> kv_;
-      const td::vector<DbQuery> *queries_;
-      td::vector<DbQuery> *res_;
-    };
-    class Main final : public td::Actor {
-     public:
-      Main(int threads_n, const td::vector<td::vector<DbQuery>> *queries, td::vector<td::vector<DbQuery>> *res)
-          : threads_n_(threads_n), queries_(queries), res_(res), ref_cnt_(threads_n) {
-      }
-
-      void start_up() final {
-        LOG(INFO) << "Start up";
-        kv_->impl().init("test_pmc").ensure();
-        for (int i = 0; i < threads_n_; i++) {
-          td::create_actor_on_scheduler<Worker>("Worker", i + 1, actor_shared(this, 2), kv_, &queries_->at(i),
-                                                &res_->at(i))
-              .release();
-        }
-      }
-
-      void tear_down() final {
-        LOG(INFO) << "Tear down";
-        // kv_->impl().close();
-      }
-      void hangup_shared() final {
-        LOG(INFO) << "Hang up";
-        ref_cnt_--;
-        if (ref_cnt_ == 0) {
-          kv_->impl().close();
-          td::Scheduler::instance()->finish();
-          stop();
-        }
-      }
-      void hangup() final {
-        LOG(ERROR) << "BAD HANGUP";
-      }
-
-     private:
-      int threads_n_;
-      const td::vector<td::vector<DbQuery>> *queries_;
-      td::vector<td::vector<DbQuery>> *res_;
-
-      std::shared_ptr<SeqQueryHandler<KeyValue>> kv_{new SeqQueryHandler<KeyValue>()};
-      int ref_cnt_;
-    };
-
-    td::ConcurrentScheduler sched(threads_n, 0);
-    sched.create_actor_unsafe<Main>(0, "Main", threads_n, &queries, &res).release();
-    sched.start();
-    while (sched.run_main(10)) {
-      // empty
-    }
-    sched.finish();
-
-    td::vector<std::size_t> pos(threads_n);
-    while (true) {
-      bool was = false;
-      for (int i = 0; i < threads_n; i++) {
-        auto p = pos[i];
-        if (p == res[i].size()) {
-          continue;
-        }
-        auto &q = res[i][p];
-        if (q.tid == 0) {
-          if (q.type == DbQuery::Type::Get) {
-            auto nq = q;
-            baseline.do_query(nq);
-            if (nq.value == q.value) {
-              was = true;
-              pos[i]++;
-            }
-          } else {
-            was = true;
-            pos[i]++;
-          }
-        }
-      }
-      if (was) {
-        continue;
-      }
-      LOG(DEBUG) << pos;
-
-      int best = -1;
-      SeqNo best_tid = 0;
-      for (int i = 0; i < threads_n; i++) {
-        auto p = pos[i];
-        if (p == res[i].size()) {
-          continue;
-        }
-        was = true;
-        auto &q = res[i][p];
-        LOG(DEBUG) << i << ' ' << p << ' ' << q;
-        if (q.tid != 0) {
-          if (best == -1 || q.tid < best_tid) {
-            best = i;
-            best_tid = q.tid;
-          }
-        }
-      }
-      if (!was) {
-        break;
-      }
-      ASSERT_TRUE(best != -1);
-      baseline.do_query(res[best][pos[best]]);
-      pos[best]++;
-    }
-  }
-  td::SqliteDb::destroy(path).ignore();
-}
diff --git a/third-party/td/td/test/fuzz_url.cpp b/third-party/td/td/test/fuzz_url.cpp
deleted file mode 100644
index c12bb149e5..0000000000
--- a/third-party/td/td/test/fuzz_url.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/MessageEntity.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/Slice.h"
-
-#include <cstddef>
-#include <cstdint>
-
-static td::string get_utf_string(td::Slice from) {
-  td::string res;
-  td::string alph = " ab@./01#";
-  for (auto c : from) {
-    res += alph[static_cast<td::uint8>(c) % alph.size()];
-  }
-  LOG(ERROR) << res;
-  return res;
-}
-
-extern "C" int LLVMFuzzerTestOneInput(std::uint8_t *data, std::size_t data_size) {
-  td::find_urls(get_utf_string(td::Slice(data, data_size)));
-  //td::find_hashtags(get_utf_string(td::Slice(data, data_size)));
-  //td::find_bot_commands(get_utf_string(td::Slice(data, data_size)));
-  //td::is_email_address(get_utf_string(td::Slice(data, data_size)));
-  //td::find_mentions(get_utf_string(td::Slice(data, data_size)));
-  return 0;
-}
diff --git a/third-party/td/td/test/http.cpp b/third-party/td/td/test/http.cpp
deleted file mode 100644
index bcd7329a5c..0000000000
--- a/third-party/td/td/test/http.cpp
+++ /dev/null
@@ -1,565 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "data.h"
-
-#if TD_DARWIN_WATCH_OS
-#include "td/net/DarwinHttp.h"
-#endif
-
-#include "td/net/HttpChunkedByteFlow.h"
-#include "td/net/HttpHeaderCreator.h"
-#include "td/net/HttpQuery.h"
-#include "td/net/HttpReader.h"
-
-#include "td/utils/AesCtrByteFlow.h"
-#include "td/utils/algorithm.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/ByteFlow.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/Gzip.h"
-#include "td/utils/GzipByteFlow.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/detail/PollableFd.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/PollFlags.h"
-#include "td/utils/port/thread_local.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-#include "td/utils/UInt.h"
-
-#include <algorithm>
-#include <condition_variable>
-#include <limits>
-#include <mutex>
-
-static td::string make_chunked(const td::string &str) {
-  auto v = td::rand_split(str);
-  td::string res;
-  for (auto &s : v) {
-    res += PSTRING() << td::format::as_hex_dump(static_cast<td::int32>(s.size()));
-    res += "\r\n";
-    res += s;
-    res += "\r\n";
-  }
-  res += "0\r\n\r\n";
-  return res;
-}
-
-static td::string gen_http_content() {
-  int t = td::Random::fast(0, 2);
-  int len;
-  if (t == 0) {
-    len = td::Random::fast(1, 10);
-  } else if (t == 1) {
-    len = td::Random::fast(100, 200);
-  } else {
-    len = td::Random::fast(1000, 20000);
-  }
-  return td::rand_string(std::numeric_limits<char>::min(), std::numeric_limits<char>::max(), len);
-}
-
-static td::string make_http_query(td::string content, td::string content_type, bool is_chunked, bool is_gzip,
-                                  double gzip_k = 5, td::string zip_override = td::string()) {
-  td::HttpHeaderCreator hc;
-  hc.init_post("/");
-  hc.add_header("jfkdlsahhjk", td::rand_string('a', 'z', td::Random::fast(1, 2000)));
-  if (!content_type.empty()) {
-    hc.add_header("content-type", content_type);
-  }
-  if (is_gzip) {
-    td::BufferSlice zip;
-    if (zip_override.empty()) {
-      zip = td::gzencode(content, gzip_k);
-    } else {
-      zip = td::BufferSlice(zip_override);
-    }
-    if (!zip.empty()) {
-      hc.add_header("content-encoding", "gzip");
-      content = zip.as_slice().str();
-    }
-  }
-  if (is_chunked) {
-    hc.add_header("transfer-encoding", "chunked");
-    content = make_chunked(content);
-  } else {
-    hc.set_content_size(content.size());
-  }
-  auto r_header = hc.finish();
-  CHECK(r_header.is_ok());
-  return PSTRING() << r_header.ok() << content;
-}
-
-static td::string rand_http_query(td::string content) {
-  bool is_chunked = td::Random::fast_bool();
-  bool is_gzip = td::Random::fast_bool();
-  return make_http_query(std::move(content), td::string(), is_chunked, is_gzip);
-}
-
-static td::string join(const td::vector<td::string> &v) {
-  td::string res;
-  for (auto &s : v) {
-    res += s;
-  }
-  return res;
-}
-
-TEST(Http, stack_overflow) {
-  td::ChainBufferWriter writer;
-  td::BufferSlice slice(td::string(256, 'A'));
-  for (int i = 0; i < 1000000; i++) {
-    td::ChainBufferWriter tmp_writer;
-    writer.append(slice.clone());
-  }
-  {
-    auto reader = writer.extract_reader();
-    reader.sync_with_writer();
-  }
-}
-
-TEST(Http, reader) {
-#if TD_ANDROID || TD_TIZEN
-  return;
-#endif
-  td::clear_thread_locals();
-  auto start_mem = td::BufferAllocator::get_buffer_mem();
-  auto start_size = td::BufferAllocator::get_buffer_slice_size();
-  {
-    td::BufferSlice a("test test");
-    td::BufferSlice b = std::move(a);
-#if TD_CLANG
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wunknown-pragmas"
-#pragma clang diagnostic ignored "-Wunknown-warning-option"
-#pragma clang diagnostic ignored "-Wself-move"
-#endif
-#if TD_GCC
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wpragmas"
-#pragma GCC diagnostic ignored "-Wself-move"
-#endif
-    a = std::move(a);
-    b = std::move(b);
-#if TD_GCC
-#pragma GCC diagnostic pop
-#endif
-#if TD_CLANG
-#pragma clang diagnostic pop
-#endif
-    a = std::move(b);
-    td::BufferSlice c = a.from_slice(a);
-    CHECK(c.size() == a.size());
-  }
-  td::clear_thread_locals();
-  ASSERT_EQ(start_mem, td::BufferAllocator::get_buffer_mem());
-  ASSERT_EQ(start_size, td::BufferAllocator::get_buffer_slice_size());
-  for (int i = 0; i < 20; i++) {
-    td::ChainBufferWriter input_writer;
-    auto input = input_writer.extract_reader();
-    td::HttpReader reader;
-    int max_post_size = 10000;
-    reader.init(&input, max_post_size, 0);
-
-    td::vector<td::string> contents(100);
-    std::generate(contents.begin(), contents.end(), gen_http_content);
-    auto v = td::transform(contents, rand_http_query);
-    auto vec_str = td::rand_split(join(v));
-
-    td::HttpQuery q;
-    td::vector<td::string> res;
-    for (auto &str : vec_str) {
-      input_writer.append(str);
-      input.sync_with_writer();
-      while (true) {
-        auto r_state = reader.read_next(&q);
-        LOG_IF(ERROR, r_state.is_error()) << r_state.error() << td::tag("ok", res.size());
-        ASSERT_TRUE(r_state.is_ok());
-        auto state = r_state.ok();
-        if (state == 0) {
-          if (q.files_.empty()) {
-            ASSERT_TRUE(td::narrow_cast<int>(q.content_.size()) <= max_post_size);
-            auto expected = contents[res.size()];
-            ASSERT_EQ(expected, q.content_.str());
-            res.push_back(q.content_.str());
-          } else {
-            auto r_fd = td::FileFd::open(q.files_[0].temp_file_name, td::FileFd::Read);
-            ASSERT_TRUE(r_fd.is_ok());
-            auto fd = r_fd.move_as_ok();
-            td::string content(td::narrow_cast<std::size_t>(q.files_[0].size), '\0');
-            auto r_size = fd.read(td::MutableSlice(content));
-            ASSERT_TRUE(r_size.is_ok());
-            ASSERT_TRUE(r_size.ok() == content.size());
-            ASSERT_TRUE(td::narrow_cast<int>(content.size()) > max_post_size);
-            ASSERT_EQ(contents[res.size()], content);
-            res.push_back(content);
-            fd.close();
-          }
-        } else {
-          break;
-        }
-      }
-    }
-    ASSERT_EQ(contents.size(), res.size());
-    ASSERT_EQ(contents, res);
-  }
-  td::clear_thread_locals();
-  ASSERT_EQ(start_mem, td::BufferAllocator::get_buffer_mem());
-  ASSERT_EQ(start_size, td::BufferAllocator::get_buffer_slice_size());
-}
-
-TEST(Http, gzip_bomb) {
-#if TD_ANDROID || TD_TIZEN || TD_EMSCRIPTEN  // the test must be disabled on low-memory systems
-  return;
-#endif
-  auto gzip_bomb_str =
-      td::gzdecode(td::gzdecode(td::base64url_decode(td::Slice(gzip_bomb, gzip_bomb_size)).ok()).as_slice())
-          .as_slice()
-          .str();
-
-  auto query = make_http_query(td::string(), td::string(), false, true, 0.01, gzip_bomb_str);
-  auto parts = td::rand_split(query);
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-  td::HttpReader reader;
-  td::HttpQuery q;
-  reader.init(&input, 100000000, 0);
-  for (auto &part : parts) {
-    input_writer.append(part);
-    input.sync_with_writer();
-    auto r_state = reader.read_next(&q);
-    if (r_state.is_error()) {
-      LOG(INFO) << r_state.error();
-      return;
-    }
-    ASSERT_TRUE(r_state.ok() != 0);
-  }
-}
-
-TEST(Http, gzip) {
-  auto gzip_str = td::gzdecode(td::base64url_decode(td::Slice(gzip, gzip_size)).ok()).as_slice().str();
-
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-
-  td::HttpReader reader;
-  reader.init(&input, 0, 0);
-
-  auto query = make_http_query(td::string(), "application/json", false, true, 0.01, gzip_str);
-  input_writer.append(query);
-  input.sync_with_writer();
-
-  td::HttpQuery q;
-  auto r_state = reader.read_next(&q);
-  ASSERT_TRUE(r_state.is_error());
-  ASSERT_EQ(413, r_state.error().code());
-}
-
-TEST(Http, aes_ctr_encode_decode_flow) {
-  auto str = td::rand_string('a', 'z', 1000000);
-  auto parts = td::rand_split(str);
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-  td::ByteFlowSource source(&input);
-  td::UInt256 key;
-  td::UInt128 iv;
-  td::Random::secure_bytes(key.raw, sizeof(key));
-  td::Random::secure_bytes(iv.raw, sizeof(iv));
-  td::AesCtrByteFlow aes_encode;
-  aes_encode.init(key, iv);
-  td::AesCtrByteFlow aes_decode;
-  aes_decode.init(key, iv);
-  td::ByteFlowSink sink;
-  source >> aes_encode >> aes_decode >> sink;
-
-  ASSERT_TRUE(!sink.is_ready());
-  for (auto &part : parts) {
-    input_writer.append(part);
-    source.wakeup();
-  }
-  ASSERT_TRUE(!sink.is_ready());
-  source.close_input(td::Status::OK());
-  ASSERT_TRUE(sink.is_ready());
-  LOG_IF(ERROR, sink.status().is_error()) << sink.status();
-  ASSERT_TRUE(sink.status().is_ok());
-  ASSERT_EQ(str, sink.result()->move_as_buffer_slice().as_slice().str());
-}
-
-TEST(Http, aes_file_encryption) {
-  auto str = td::rand_string('a', 'z', 1000000);
-  td::CSlice name = "test_encryption";
-  td::unlink(name).ignore();
-  td::UInt256 key;
-  td::UInt128 iv;
-  td::Random::secure_bytes(key.raw, sizeof(key));
-  td::Random::secure_bytes(iv.raw, sizeof(iv));
-
-  {
-    td::BufferedFdBase<td::FileFd> fd(td::FileFd::open(name, td::FileFd::Write | td::FileFd::Create).move_as_ok());
-
-    auto parts = td::rand_split(str);
-
-    td::ChainBufferWriter output_writer;
-    auto output_reader = output_writer.extract_reader();
-    td::ByteFlowSource source(&output_reader);
-    td::AesCtrByteFlow aes_encode;
-    aes_encode.init(key, iv);
-    td::ByteFlowSink sink;
-
-    source >> aes_encode >> sink;
-    fd.set_output_reader(sink.get_output());
-
-    for (auto &part : parts) {
-      output_writer.append(part);
-      source.wakeup();
-      fd.flush_write().ensure();
-    }
-    fd.close();
-  }
-
-  {
-    td::BufferedFdBase<td::FileFd> fd(td::FileFd::open(name, td::FileFd::Read).move_as_ok());
-
-    td::ChainBufferWriter input_writer;
-    auto input_reader = input_writer.extract_reader();
-    td::ByteFlowSource source(&input_reader);
-    td::AesCtrByteFlow aes_encode;
-    aes_encode.init(key, iv);
-    td::ByteFlowSink sink;
-    source >> aes_encode >> sink;
-    fd.set_input_writer(&input_writer);
-
-    fd.get_poll_info().add_flags(td::PollFlags::Read());
-    while (can_read_local(fd)) {
-      fd.flush_read(4096).ensure();
-      source.wakeup();
-    }
-
-    fd.close();
-
-    source.close_input(td::Status::OK());
-    ASSERT_TRUE(sink.is_ready());
-    LOG_IF(ERROR, sink.status().is_error()) << sink.status();
-    ASSERT_TRUE(sink.status().is_ok());
-    auto result = sink.result()->move_as_buffer_slice().as_slice().str();
-    ASSERT_EQ(str, result);
-  }
-  td::unlink(name).ignore();
-}
-
-TEST(Http, chunked_flow) {
-  auto str = td::rand_string('a', 'z', 100);
-  auto parts = td::rand_split(make_chunked(str));
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-  td::ByteFlowSource source(&input);
-  td::HttpChunkedByteFlow chunked_flow;
-  td::ByteFlowSink sink;
-  source >> chunked_flow >> sink;
-
-  for (auto &part : parts) {
-    input_writer.append(part);
-    source.wakeup();
-  }
-  source.close_input(td::Status::OK());
-  ASSERT_TRUE(sink.is_ready());
-  LOG_IF(ERROR, sink.status().is_error()) << sink.status();
-  ASSERT_TRUE(sink.status().is_ok());
-  auto res = sink.result()->move_as_buffer_slice().as_slice().str();
-  ASSERT_EQ(str.size(), res.size());
-  ASSERT_EQ(str, res);
-}
-
-TEST(Http, chunked_flow_error) {
-  auto str = td::rand_string('a', 'z', 100000);
-  for (int d = 1; d < 100; d += 10) {
-    auto new_str = make_chunked(str);
-    new_str.resize(str.size() - d);
-    auto parts = td::rand_split(new_str);
-    td::ChainBufferWriter input_writer;
-    auto input = input_writer.extract_reader();
-    td::ByteFlowSource source(&input);
-    td::HttpChunkedByteFlow chunked_flow;
-    td::ByteFlowSink sink;
-    source >> chunked_flow >> sink;
-
-    for (auto &part : parts) {
-      input_writer.append(part);
-      source.wakeup();
-    }
-    ASSERT_TRUE(!sink.is_ready());
-    source.close_input(td::Status::OK());
-    ASSERT_TRUE(sink.is_ready());
-    ASSERT_TRUE(!sink.status().is_ok());
-  }
-}
-
-TEST(Http, gzip_chunked_flow) {
-  auto str = td::rand_string('a', 'z', 1000000);
-  auto parts = td::rand_split(make_chunked(td::gzencode(str, 2.0).as_slice().str()));
-
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-  td::ByteFlowSource source(&input);
-  td::HttpChunkedByteFlow chunked_flow;
-  td::GzipByteFlow gzip_flow(td::Gzip::Mode::Decode);
-  td::ByteFlowSink sink;
-  source >> chunked_flow >> gzip_flow >> sink;
-
-  for (auto &part : parts) {
-    input_writer.append(part);
-    source.wakeup();
-  }
-  source.close_input(td::Status::OK());
-  ASSERT_TRUE(sink.is_ready());
-  LOG_IF(ERROR, sink.status().is_error()) << sink.status();
-  ASSERT_TRUE(sink.status().is_ok());
-  ASSERT_EQ(str, sink.result()->move_as_buffer_slice().as_slice().str());
-}
-
-TEST(Http, gzip_bomb_with_limit) {
-  td::string gzip_bomb_str;
-  {
-    td::ChainBufferWriter input_writer;
-    auto input = input_writer.extract_reader();
-    td::GzipByteFlow gzip_flow(td::Gzip::Mode::Encode);
-    td::ByteFlowSource source(&input);
-    td::ByteFlowSink sink;
-    source >> gzip_flow >> sink;
-
-    td::string s(1 << 16, 'a');
-    for (int i = 0; i < 1000; i++) {
-      input_writer.append(s);
-      source.wakeup();
-    }
-    source.close_input(td::Status::OK());
-    ASSERT_TRUE(sink.is_ready());
-    LOG_IF(ERROR, sink.status().is_error()) << sink.status();
-    ASSERT_TRUE(sink.status().is_ok());
-    gzip_bomb_str = sink.result()->move_as_buffer_slice().as_slice().str();
-  }
-
-  auto query = make_http_query(td::string(), td::string(), false, true, 0.01, gzip_bomb_str);
-  auto parts = td::rand_split(query);
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-  td::HttpReader reader;
-  td::HttpQuery q;
-  reader.init(&input, 1000000);
-  bool ok = false;
-  for (auto &part : parts) {
-    input_writer.append(part);
-    input.sync_with_writer();
-    auto r_state = reader.read_next(&q);
-    if (r_state.is_error()) {
-      LOG(FATAL) << r_state.error();
-      return;
-    } else if (r_state.ok() == 0) {
-      ok = true;
-    }
-  }
-  ASSERT_TRUE(ok);
-}
-
-TEST(Http, partial_form_data) {
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-
-  td::HttpReader reader;
-  reader.init(&input, 0, 0);
-
-  auto query =
-      make_http_query("------abcd\r\nCo", "Content-Type: multipart/form-data; boundary=----abcd", false, false);
-  input_writer.append(query);
-  input.sync_with_writer();
-
-  td::HttpQuery q;
-  auto r_state = reader.read_next(&q);
-  ASSERT_TRUE(r_state.is_error());
-  ASSERT_EQ(400, r_state.error().code());
-}
-
-TEST(Http, form_data) {
-  td::ChainBufferWriter input_writer;
-  auto input = input_writer.extract_reader();
-
-  td::HttpReader reader;
-  reader.init(&input, 0, 1);
-
-  auto query = make_http_query(
-      "------abcd\r\n"
-      "Content-Disposition: form-data; name=\"text\"\r\n"
-      "\r\n"
-      "some text\r\n"
-      "------abcd\r\n"
-      "Content-Disposition: form-data; name=\"text2\"\r\n"
-      "\r\n"
-      "some text\r\n"
-      "more text\r\n"
-      "------abcd\r\n"
-      "Content-Disposition: form-data; name=\"file\"; filename=\"file.txt\"\r\n"
-      "Content-Type: text/plain\r\n"
-      "\r\n"
-      "File content\r\n"
-      "------abcd--",
-      "Content-Type: multipart/form-data; boundary=----abcd", false, false);
-  input_writer.append(query);
-  input.sync_with_writer();
-
-  td::HttpQuery q;
-  auto r_state = reader.read_next(&q);
-  ASSERT_TRUE(r_state.is_ok());
-  ASSERT_EQ(2u, q.args_.size());
-  ASSERT_EQ("text", q.args_[0].first);
-  ASSERT_EQ("some text", q.args_[0].second);
-  ASSERT_EQ("text2", q.args_[1].first);
-  ASSERT_EQ("some text\r\nmore text", q.args_[1].second);
-  ASSERT_EQ(1u, q.files_.size());
-  ASSERT_EQ("file.txt", q.files_[0].name);
-  ASSERT_EQ("file", q.files_[0].field_name);
-  ASSERT_EQ("text/plain", q.files_[0].content_type);
-  ASSERT_EQ(12, q.files_[0].size);
-  ASSERT_TRUE(!q.files_[0].temp_file_name.empty());
-}
-
-#if TD_DARWIN_WATCH_OS
-struct Baton {
-  std::mutex mutex;
-  std::condition_variable cond;
-  bool is_ready{false};
-
-  void wait() {
-    std::unique_lock<std::mutex> lock(mutex);
-    cond.wait(lock, [&] { return is_ready; });
-  }
-
-  void post() {
-    {
-      std::unique_lock<std::mutex> lock(mutex);
-      is_ready = true;
-    }
-    cond.notify_all();
-  }
-
-  void reset() {
-    is_ready = false;
-  }
-};
-
-TEST(Http, Darwin) {
-  Baton baton;
-  td::DarwinHttp::get("http://example.com", [&](td::BufferSlice data) { baton.post(); });
-  baton.wait();
-}
-#endif
diff --git a/third-party/td/td/test/link.cpp b/third-party/td/td/test/link.cpp
deleted file mode 100644
index 28eb29203f..0000000000
--- a/third-party/td/td/test/link.cpp
+++ /dev/null
@@ -1,1463 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/LinkManager.h"
-
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/td_api.h"
-
-#include "td/utils/common.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/tests.h"
-
-static void check_find_urls(const td::string &url, bool is_valid) {
-  auto url_lower = td::to_lower(url);
-  {
-    auto tg_urls = td::find_tg_urls(url);
-    if (is_valid && (td::begins_with(url_lower, "tg://") || td::begins_with(url_lower, "ton://"))) {
-      ASSERT_EQ(1u, tg_urls.size());
-      ASSERT_STREQ(url, tg_urls[0]);
-    } else {
-      ASSERT_TRUE(tg_urls.empty() || tg_urls[0] != url);
-    }
-  }
-
-  {
-    if (is_valid && (td::begins_with(url_lower, "http") || td::begins_with(url_lower, "t.me")) &&
-        url.find('.') != td::string::npos && url.find(' ') == td::string::npos && url != "http://.." &&
-        url.find("ra.ph") == td::string::npos && url.find("Aph") == td::string::npos) {
-      auto urls = td::find_urls(url);
-      ASSERT_EQ(1u, urls.size());
-      ASSERT_STREQ(url, urls[0].first);
-    }
-  }
-}
-
-static void check_link(const td::string &url, const td::string &expected) {
-  auto result = td::LinkManager::check_link(url);
-  if (result.is_ok()) {
-    ASSERT_STREQ(expected, result.ok());
-  } else {
-    ASSERT_TRUE(expected.empty());
-  }
-
-  check_find_urls(url, result.is_ok());
-}
-
-TEST(Link, check_link) {
-  check_link("sftp://google.com", "");
-  check_link("tg://google_com", "tg://google_com/");
-  check_link("tOn://google", "ton://google/");
-  check_link("httP://google.com?1#tes", "http://google.com/?1#tes");
-  check_link("httPs://google.com/?1#tes", "https://google.com/?1#tes");
-  check_link("http://google.com:0", "");
-  check_link("http://google.com:0000000001", "http://google.com:1/");
-  check_link("http://google.com:-1", "");
-  check_link("tg://google?1#tes", "tg://google?1#tes");
-  check_link("tg://google/?1#tes", "tg://google?1#tes");
-  check_link("TG:_", "tg://_/");
-  check_link("sftp://google.com", "");
-  check_link("sftp://google.com", "");
-  check_link("http:google.com", "");
-  check_link("tg://http://google.com", "");
-  check_link("tg:http://google.com", "");
-  check_link("tg:https://google.com", "");
-  check_link("tg:test@google.com", "");
-  check_link("tg:google.com:80", "");
-  check_link("tg:google-com", "tg://google-com/");
-  check_link("tg:google.com", "");
-  check_link("tg:google.com:0", "");
-  check_link("tg:google.com:a", "");
-  check_link("tg:[2001:db8:0:0:0:ff00:42:8329]", "");
-  check_link("tg:127.0.0.1", "");
-  check_link("http://[2001:db8:0:0:0:ff00:42:8329]", "http://[2001:db8:0:0:0:ff00:42:8329]/");
-  check_link("http://localhost", "");
-  check_link("http://..", "http://../");
-  check_link("..", "http://../");
-  check_link("https://.", "");
-  check_link("tOnSiTe://google", "tonsite://google/");
-  check_link("tOnSiTe://google.ton?t=1#we", "tonsite://google.ton?t=1#we");
-}
-
-static td::td_api::object_ptr<td::td_api::InternalLinkType> get_internal_link_type_object(
-    const td::unique_ptr<td::LinkManager::InternalLink> &link) {
-  auto object = link->get_internal_link_type_object();
-  if (object->get_id() == td::td_api::internalLinkTypeMessageDraft::ID) {
-    static_cast<td::td_api::internalLinkTypeMessageDraft *>(object.get())->text_->entities_.clear();
-  }
-  return object;
-}
-
-static void parse_internal_link(const td::string &url, td::td_api::object_ptr<td::td_api::InternalLinkType> expected) {
-  auto result = td::LinkManager::parse_internal_link(url);
-  if (result != nullptr) {
-    auto object = get_internal_link_type_object(result);
-    ASSERT_STREQ(url + ' ' + to_string(expected), url + ' ' + to_string(object));
-
-    for (auto is_internal : {true, false}) {
-      if (!is_internal && expected->get_id() == td::td_api::internalLinkTypeChatBoost::ID) {
-        // external chat boost links must be generated with getChatBoostLink
-        continue;
-      }
-      if (!is_internal && expected->get_id() == td::td_api::internalLinkTypeMessage::ID) {
-        // external message links must be generated with getMessageLink
-        continue;
-      }
-      if (expected->get_id() == td::td_api::internalLinkTypeQrCodeAuthentication::ID) {
-        // QR code authentication links must never be generated manually
-        continue;
-      }
-      auto r_link = td::LinkManager::get_internal_link(expected, is_internal);
-      if (r_link.is_error()) {
-        if (r_link.error().message() == "HTTP link is unavailable for the link type") {
-          // some links are tg-only
-          continue;
-        }
-        if (r_link.error().message() == "Deep link is unavailable for the link type") {
-          // some links are HTTP-only
-          continue;
-        }
-        if (r_link.error().message() == "WALLPAPER_INVALID") {
-          continue;
-        }
-        LOG(ERROR) << url << ' ' << r_link.error() << ' ' << to_string(expected);
-        ASSERT_TRUE(r_link.is_ok());
-      }
-      auto new_result = td::LinkManager::parse_internal_link(r_link.ok());
-      ASSERT_TRUE(new_result != nullptr);
-      auto new_object = get_internal_link_type_object(new_result);
-
-      auto new_object_str = to_string(new_object);
-      auto expected_str = to_string(expected);
-      if (expected->get_id() == td::td_api::internalLinkTypeBackground::ID) {
-        for (auto &c : expected_str) {
-          if (c == '~') {
-            // getInternalLink always use '-'
-            c = '-';
-          }
-        }
-        if (new_object_str != expected_str && td::ends_with(expected_str, "\"\n}\n")) {
-          // getInternalLink always adds rotation parameter, because default value differs between apps
-          expected_str = expected_str.substr(0, expected_str.size() - 4) + "?rotation=0\"\n}\n";
-        }
-      }
-      ASSERT_EQ(new_object_str, expected_str);
-
-      r_link = td::LinkManager::get_internal_link(new_object, is_internal);
-      ASSERT_TRUE(r_link.is_ok());
-      new_result = td::LinkManager::parse_internal_link(r_link.ok());
-      ASSERT_TRUE(new_result != nullptr);
-
-      // the object must be the same after 2 round of conversion
-      ASSERT_STREQ(to_string(new_object), to_string(get_internal_link_type_object(new_result)));
-    }
-  } else {
-    LOG_IF(ERROR, expected != nullptr) << url;
-    ASSERT_TRUE(expected == nullptr);
-  }
-
-  check_find_urls(url, result != nullptr);
-}
-
-static auto chat_administrator_rights(bool can_manage_chat, bool can_change_info, bool can_post_messages,
-                                      bool can_edit_messages, bool can_delete_messages, bool can_invite_users,
-                                      bool can_restrict_members, bool can_pin_messages, bool can_manage_topics,
-                                      bool can_promote_members, bool can_manage_video_chats, bool can_post_stories,
-                                      bool can_edit_stories, bool can_delete_stories, bool is_anonymous) {
-  return td::td_api::make_object<td::td_api::chatAdministratorRights>(
-      can_manage_chat, can_change_info, can_post_messages, can_edit_messages, can_delete_messages, can_invite_users,
-      can_restrict_members, can_pin_messages, can_manage_topics, can_promote_members, can_manage_video_chats,
-      can_post_stories, can_edit_stories, can_delete_stories, is_anonymous);
-}
-
-static auto target_chat_chosen(bool allow_users, bool allow_bots, bool allow_groups, bool allow_channels) {
-  return td::td_api::make_object<td::td_api::targetChatChosen>(
-      td::td_api::make_object<td::td_api::targetChatTypes>(allow_users, allow_bots, allow_groups, allow_channels));
-}
-
-static td::td_api::object_ptr<td::td_api::WebAppOpenMode> web_app_open_mode(bool is_compact, bool is_full_screen) {
-  if (is_compact) {
-    return td::td_api::make_object<td::td_api::webAppOpenModeCompact>();
-  }
-  if (is_full_screen) {
-    return td::td_api::make_object<td::td_api::webAppOpenModeFullScreen>();
-  }
-  return td::td_api::make_object<td::td_api::webAppOpenModeFullSize>();
-}
-
-static auto active_sessions() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeActiveSessions>();
-}
-
-static auto attachment_menu_bot(td::td_api::object_ptr<td::td_api::targetChatChosen> chat_types,
-                                td::td_api::object_ptr<td::td_api::InternalLinkType> chat_link,
-                                const td::string &bot_username, const td::string &start_parameter) {
-  td::td_api::object_ptr<td::td_api::TargetChat> target_chat;
-  if (chat_link != nullptr) {
-    target_chat = td::td_api::make_object<td::td_api::targetChatInternalLink>(std::move(chat_link));
-  } else if (chat_types != nullptr) {
-    target_chat = std::move(chat_types);
-  } else {
-    target_chat = td::td_api::make_object<td::td_api::targetChatCurrent>();
-  }
-  return td::td_api::make_object<td::td_api::internalLinkTypeAttachmentMenuBot>(
-      std::move(target_chat), bot_username, start_parameter.empty() ? td::string() : "start://" + start_parameter);
-}
-
-static auto authentication_code(const td::string &code) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeAuthenticationCode>(code);
-}
-
-static auto background(const td::string &background_name) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeBackground>(background_name);
-}
-
-static auto bot_add_to_channel(const td::string &bot_username,
-                               td::td_api::object_ptr<td::td_api::chatAdministratorRights> &&administrator_rights) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeBotAddToChannel>(bot_username,
-                                                                              std::move(administrator_rights));
-}
-
-static auto bot_start(const td::string &bot_username, const td::string &start_parameter) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeBotStart>(bot_username, start_parameter, false);
-}
-
-static auto bot_start_in_group(const td::string &bot_username, const td::string &start_parameter,
-                               td::td_api::object_ptr<td::td_api::chatAdministratorRights> &&administrator_rights) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeBotStartInGroup>(bot_username, start_parameter,
-                                                                              std::move(administrator_rights));
-}
-
-static auto business_chat(const td::string &link_name) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeBusinessChat>(link_name);
-}
-
-static auto buy_stars(td::int64 star_count, const td::string &purpose) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeBuyStars>(star_count, purpose);
-}
-
-static auto change_phone_number() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeChangePhoneNumber>();
-}
-
-static auto chat_affiliate_program(const td::string &username, const td::string &referral) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeChatAffiliateProgram>(username, referral);
-}
-
-static auto chat_boost(const td::string &url) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeChatBoost>(url);
-}
-
-static auto chat_folder_invite(const td::string &slug) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeChatFolderInvite>("tg:addlist?slug=" + slug);
-}
-
-static auto chat_folder_settings() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeChatFolderSettings>();
-}
-
-static auto chat_invite(const td::string &hash) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeChatInvite>("tg:join?invite=" + hash);
-}
-
-static auto default_message_auto_delete_timer_settings() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeDefaultMessageAutoDeleteTimerSettings>();
-}
-
-static auto edit_profile_settings() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeEditProfileSettings>();
-}
-
-static auto game(const td::string &bot_username, const td::string &game_short_name) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeGame>(bot_username, game_short_name);
-}
-
-static auto instant_view(const td::string &url, const td::string &fallback_url) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeInstantView>(url, fallback_url);
-}
-
-static auto invoice(const td::string &invoice_name) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeInvoice>(invoice_name);
-}
-
-static auto language_pack(const td::string &language_pack_name) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeLanguagePack>(language_pack_name);
-}
-
-static auto language_settings() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeLanguageSettings>();
-}
-
-static auto main_web_app(const td::string &bot_username, const td::string &start_parameter, bool is_compact,
-                         bool is_full_screen) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeMainWebApp>(bot_username, start_parameter,
-                                                                         web_app_open_mode(is_compact, is_full_screen));
-}
-
-static auto message(const td::string &url) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeMessage>(url);
-}
-
-static auto message_draft(td::string text, bool contains_url) {
-  auto formatted_text = td::td_api::make_object<td::td_api::formattedText>();
-  formatted_text->text_ = std::move(text);
-  return td::td_api::make_object<td::td_api::internalLinkTypeMessageDraft>(std::move(formatted_text), contains_url);
-}
-
-static auto passport_data_request(td::int32 bot_user_id, const td::string &scope, const td::string &public_key,
-                                  const td::string &nonce, const td::string &callback_url) {
-  return td::td_api::make_object<td::td_api::internalLinkTypePassportDataRequest>(bot_user_id, scope, public_key, nonce,
-                                                                                  callback_url);
-}
-
-static auto phone_number_confirmation(const td::string &hash, const td::string &phone_number) {
-  return td::td_api::make_object<td::td_api::internalLinkTypePhoneNumberConfirmation>(hash, phone_number);
-}
-
-static auto premium_features(const td::string &referrer) {
-  return td::td_api::make_object<td::td_api::internalLinkTypePremiumFeatures>(referrer);
-}
-
-static auto premium_gift(const td::string &referrer) {
-  return td::td_api::make_object<td::td_api::internalLinkTypePremiumGift>(referrer);
-}
-
-static auto premium_gift_code(const td::string &code) {
-  return td::td_api::make_object<td::td_api::internalLinkTypePremiumGiftCode>(code);
-}
-
-static auto privacy_and_security_settings() {
-  return td::td_api::make_object<td::td_api::internalLinkTypePrivacyAndSecuritySettings>();
-}
-
-static auto proxy_mtproto(const td::string &server, td::int32 port, const td::string &secret) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeProxy>(
-      server, port, td::td_api::make_object<td::td_api::proxyTypeMtproto>(secret));
-}
-
-static auto proxy_socks(const td::string &server, td::int32 port, const td::string &username,
-                        const td::string &password) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeProxy>(
-      server, port, td::td_api::make_object<td::td_api::proxyTypeSocks5>(username, password));
-}
-
-static auto public_chat(const td::string &chat_username, const td::string &draft_text = td::string(),
-                        bool open_profile = false) {
-  return td::td_api::make_object<td::td_api::internalLinkTypePublicChat>(chat_username, draft_text, open_profile);
-}
-
-static auto qr_code_authentication() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeQrCodeAuthentication>();
-}
-
-static auto restore_purchases() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeRestorePurchases>();
-}
-
-static auto settings() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeSettings>();
-}
-
-static auto sticker_set(const td::string &sticker_set_name, bool expect_custom_emoji) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeStickerSet>(sticker_set_name, expect_custom_emoji);
-}
-
-static auto story(const td::string &sender_username, td::int32 story_id) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeStory>(sender_username, story_id);
-}
-
-static auto theme(const td::string &theme_name) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeTheme>(theme_name);
-}
-
-static auto theme_settings() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeThemeSettings>();
-}
-
-static auto unknown_deep_link(const td::string &link) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeUnknownDeepLink>(link);
-}
-
-static auto unsupported_proxy() {
-  return td::td_api::make_object<td::td_api::internalLinkTypeUnsupportedProxy>();
-}
-
-static auto upgraded_gift(const td::string &name) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeUpgradedGift>(name);
-}
-
-static auto user_phone_number(const td::string &phone_number, const td::string &draft_text = td::string(),
-                              bool open_profile = false) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeUserPhoneNumber>('+' + phone_number, draft_text,
-                                                                              open_profile);
-}
-
-static auto user_token(const td::string &token) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeUserToken>(token);
-}
-
-static auto video_chat(const td::string &chat_username, const td::string &invite_hash, bool is_live_stream) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeVideoChat>(chat_username, invite_hash, is_live_stream);
-}
-
-static auto web_app(const td::string &bot_username, const td::string &web_app_short_name,
-                    const td::string &start_parameter, bool is_compact, bool is_full_screen) {
-  return td::td_api::make_object<td::td_api::internalLinkTypeWebApp>(bot_username, web_app_short_name, start_parameter,
-                                                                     web_app_open_mode(is_compact, is_full_screen));
-}
-
-TEST(Link, parse_internal_link_part1) {
-  parse_internal_link("t.me/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("telegram.me/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("telegram.dog/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("www.t.me/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("www%2etelegram.me/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("www%2Etelegram.dog/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("www%252Etelegram.dog/levlam/1", nullptr);
-  parse_internal_link("www.t.me/s/s/s/s/s/joinchat/1", nullptr);
-  parse_internal_link("www.t.me/s/s/s/s/s/joinchat/a", chat_invite("a"));
-  parse_internal_link("www.t.me/s/%73/%73/s/%73/joinchat/a", chat_invite("a"));
-  parse_internal_link("http://t.me/s/s/s/s/s/s/s/s/s/s/s/s/s/s/s/s/s/joinchat/a", chat_invite("a"));
-  parse_internal_link("http://t.me/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("https://t.me/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("hTtp://www.t.me:443/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("httPs://t.me:80/levlam/1", message("tg://resolve?domain=levlam&post=1"));
-  parse_internal_link("https://t.me:200/levlam/1", nullptr);
-  parse_internal_link("http:t.me/levlam/1", nullptr);
-  parse_internal_link("t.dog/levlam/1", nullptr);
-  parse_internal_link("t.m/levlam/1", nullptr);
-  parse_internal_link("t.men/levlam/1", nullptr);
-
-  parse_internal_link("t.me/levlam?boos", public_chat("levlam"));
-  parse_internal_link("telegram.me/levlam?booster", public_chat("levlam"));
-  parse_internal_link("telegram.dog/levlam?boost", chat_boost("tg://boost?domain=levlam"));
-  parse_internal_link("www.t.me/levlam?boost", chat_boost("tg://boost?domain=levlam"));
-  parse_internal_link("t.me/c/l12345?boost", nullptr);
-  parse_internal_link("t.me/c/12345l5431?boost", chat_boost("tg://boost?channel=12345"));
-  parse_internal_link("t.me/c/12345?boost", chat_boost("tg://boost?channel=12345"));
-  parse_internal_link("t.me/c/123456789012?boost", chat_boost("tg://boost?channel=123456789012"));
-  parse_internal_link("t.me/c/123456789012?boost=12312&domain=123", chat_boost("tg://boost?channel=123456789012"));
-
-  parse_internal_link("t.me/boost/s/12345", story("boost", 12345));
-  parse_internal_link("t.me/boost/s", chat_boost("tg://boost?domain=s"));
-  parse_internal_link("t.me/boost/12", message("tg://resolve?domain=boost&post=12"));
-  parse_internal_link("t.me/boost?cc=1#c=1", public_chat("boost"));
-  parse_internal_link("t.me/boost?c=-1", public_chat("boost"));
-  parse_internal_link("t.me/boost?c=12telegram", chat_boost("tg://boost?channel=12"));
-  parse_internal_link("t.me/bOoSt?c=12telegram", chat_boost("tg://boost?channel=12"));
-
-  parse_internal_link("tg:boost?domain=username/12345&single", chat_boost("tg://boost?domain=username%2F12345"));
-  parse_internal_link("tg:boost?domain=username&channel=12345", chat_boost("tg://boost?domain=username"));
-  parse_internal_link("tg:boost?channel=12345&domain=username", chat_boost("tg://boost?domain=username"));
-  parse_internal_link("tg:boost?channel=12345", chat_boost("tg://boost?channel=12345"));
-
-  parse_internal_link("tg:resolve?domain=username&post=12345&single",
-                      message("tg://resolve?domain=username&post=12345&single"));
-  parse_internal_link("tg:resolve?domain=username&post=12345&single&startattach=1&attach=test",
-                      message("tg://resolve?domain=username&post=12345&single"));
-  parse_internal_link("tg:resolve?domain=user%31name&post=%312345&single&comment=456&t=789&single&thread=123%20%31",
-                      message("tg://resolve?domain=user1name&post=12345&single&thread=123%201&comment=456&t=789"));
-  parse_internal_link("TG://resolve?domain=username&post=12345&single&voicechat=aasd",
-                      message("tg://resolve?domain=username&post=12345&single"));
-  parse_internal_link("TG://test@resolve?domain=username&post=12345&single", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username&post=12345&single", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username&post=12345&single", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username&post=12345&single", nullptr);
-  parse_internal_link("tg:resolve?domain=&post=12345&single",
-                      unknown_deep_link("tg://resolve?domain=&post=12345&single"));
-  parse_internal_link("tg:resolve?domain=telegram&post=&single", public_chat("telegram"));
-  parse_internal_link("tg:resolve?domain=123456&post=&single",
-                      unknown_deep_link("tg://resolve?domain=123456&post=&single"));
-  parse_internal_link("tg:resolve?domain=telegram&startattach", attachment_menu_bot(nullptr, nullptr, "telegram", ""));
-  parse_internal_link("tg:resolve?domain=telegram&startattach=1",
-                      attachment_menu_bot(nullptr, nullptr, "telegram", "1"));
-  parse_internal_link("tg:resolve?domain=telegram&startattach=1&choose=cats+dogs",
-                      attachment_menu_bot(nullptr, nullptr, "telegram", "1"));
-  parse_internal_link("tg:resolve?domain=telegram&startattach=1&choose=users",
-                      attachment_menu_bot(target_chat_chosen(true, false, false, false), nullptr, "telegram", "1"));
-  parse_internal_link("tg:resolve?domain=telegram&startattach=1&choose=bots",
-                      attachment_menu_bot(target_chat_chosen(false, true, false, false), nullptr, "telegram", "1"));
-  parse_internal_link("tg:resolve?domain=telegram&startattach=1&choose=groups",
-                      attachment_menu_bot(target_chat_chosen(false, false, true, false), nullptr, "telegram", "1"));
-  parse_internal_link("tg:resolve?domain=telegram&startattach=1&choose=channels",
-                      attachment_menu_bot(target_chat_chosen(false, false, false, true), nullptr, "telegram", "1"));
-  parse_internal_link("tg:resolve?domain=telegram&startattach=1&choose=users+channels",
-                      attachment_menu_bot(target_chat_chosen(true, false, false, true), nullptr, "telegram", "1"));
-  parse_internal_link("tg:resolve?domain=telegram&attach=&startattach",
-                      attachment_menu_bot(nullptr, nullptr, "telegram", ""));
-  parse_internal_link("tg:resolve?domain=telegram&attach=&startattach=1",
-                      attachment_menu_bot(nullptr, nullptr, "telegram", "1"));
-  parse_internal_link("tg:resolve?domain=telegram&attach=test&startattach",
-                      attachment_menu_bot(nullptr, public_chat("telegram"), "test", ""));
-  parse_internal_link("tg:resolve?domain=telegram&attach=test&startattach=1",
-                      attachment_menu_bot(nullptr, public_chat("telegram"), "test", "1"));
-  parse_internal_link("tg:resolve?domain=username&profile=12&asd", public_chat("username", "", true));
-  parse_internal_link("tg:resolve?domain=username&profile&text=@asd", public_chat("username", " @asd", true));
-
-  parse_internal_link("tg:resolve?phone=1", user_phone_number("1"));
-  parse_internal_link("tg:resolve?phone=+1", user_phone_number("1"));
-  parse_internal_link("tg:resolve?phone=123456", user_phone_number("123456"));
-  parse_internal_link("tg:resolve?phone=123456&startattach", user_phone_number("123456"));
-  parse_internal_link("tg:resolve?phone=123456&startattach=123", user_phone_number("123456"));
-  parse_internal_link("tg:resolve?phone=123456&attach=", user_phone_number("123456"));
-  parse_internal_link("tg:resolve?phone=123456&attach=&startattach", user_phone_number("123456"));
-  parse_internal_link("tg:resolve?phone=123456&attach=&startattach=123", user_phone_number("123456"));
-  parse_internal_link("tg:resolve?phone=123456&attach=test",
-                      attachment_menu_bot(nullptr, user_phone_number("123456"), "test", ""));
-  parse_internal_link("tg:resolve?phone=+123456&attach=test",
-                      attachment_menu_bot(nullptr, user_phone_number("123456"), "test", ""));
-  parse_internal_link("tg:resolve?phone=++123456&attach=test",
-                      unknown_deep_link("tg://resolve?phone=++123456&attach=test"));
-  parse_internal_link("tg:resolve?phone=123456&attach=test&startattach&choose=users",
-                      attachment_menu_bot(nullptr, user_phone_number("123456"), "test", ""));
-  parse_internal_link("tg:resolve?phone=123456&attach=test&startattach=123",
-                      attachment_menu_bot(nullptr, user_phone_number("123456"), "test", "123"));
-  parse_internal_link("tg:resolve?phone=01234567890123456789012345678912",
-                      user_phone_number("01234567890123456789012345678912"));
-  parse_internal_link("tg:resolve?phone=012345678901234567890123456789123",
-                      unknown_deep_link("tg://resolve?phone=012345678901234567890123456789123"));
-  parse_internal_link("tg:resolve?phone=", unknown_deep_link("tg://resolve?phone="));
-  parse_internal_link("tg:resolve?phone=+123", user_phone_number("123"));
-  parse_internal_link("tg:resolve?phone=123456 ", unknown_deep_link("tg://resolve?phone=123456 "));
-  parse_internal_link("tg:resolve?domain=telegram&text=asd", public_chat("telegram", "asd"));
-  parse_internal_link("tg:resolve?phone=12345678901&text=asd", user_phone_number("12345678901", "asd"));
-  parse_internal_link("tg:resolve?domain=telegram&text=@asd", public_chat("telegram", " @asd"));
-  parse_internal_link("tg:resolve?phone=12345678901&text=@asd", user_phone_number("12345678901", " @asd"));
-  parse_internal_link("tg:resolve?domain=telegram&text=1%A02", public_chat("telegram"));
-  parse_internal_link("tg:resolve?phone=12345678901&text=1%A02", user_phone_number("12345678901"));
-  parse_internal_link("tg:resolve?phone=123456&profile", user_phone_number("123456", "", true));
-  parse_internal_link("tg:resolve?phone=123456&profile&text=@asd", user_phone_number("123456", " @asd", true));
-
-  parse_internal_link("tg:contact?token=1", user_token("1"));
-  parse_internal_link("tg:contact?token=123456", user_token("123456"));
-  parse_internal_link("tg:contact?token=123456&startattach", user_token("123456"));
-  parse_internal_link("tg:contact?token=123456&startattach=123", user_token("123456"));
-  parse_internal_link("tg:contact?token=123456&attach=", user_token("123456"));
-  parse_internal_link("tg:contact?token=123456&attach=&startattach", user_token("123456"));
-  parse_internal_link("tg:contact?token=123456&attach=&startattach=123", user_token("123456"));
-  parse_internal_link("tg:contact?token=01234567890123456789012345678912",
-                      user_token("01234567890123456789012345678912"));
-  parse_internal_link("tg:contact?token=012345678901234567890123456789123",
-                      user_token("012345678901234567890123456789123"));
-  parse_internal_link("tg:contact?token=", unknown_deep_link("tg://contact?token="));
-  parse_internal_link("tg:contact?token=+123", user_token(" 123"));
-
-  parse_internal_link("tg:nft?slug=1", upgraded_gift("1"));
-  parse_internal_link("tg:nft?slug=123456", upgraded_gift("123456"));
-  parse_internal_link("tg:nft?slug=123456&startattach", upgraded_gift("123456"));
-  parse_internal_link("tg:nft?slug=123456&startattach=123", upgraded_gift("123456"));
-  parse_internal_link("tg:nft?slug=123456&attach=", upgraded_gift("123456"));
-  parse_internal_link("tg:nft?slug=123456/789&attach=&startattach", upgraded_gift("123456/789"));
-  parse_internal_link("tg:nft?slug=123456&attach=&startattach=123", upgraded_gift("123456"));
-  parse_internal_link("tg:nft?slug=01234567890123456789012345678912",
-                      upgraded_gift("01234567890123456789012345678912"));
-  parse_internal_link("tg:nft?slug=012345678901234567890123456789123",
-                      upgraded_gift("012345678901234567890123456789123"));
-  parse_internal_link("tg:nft?slug=", unknown_deep_link("tg://nft?slug="));
-  parse_internal_link("tg:nft?slug=+123", upgraded_gift(" 123"));
-
-  parse_internal_link("t.me/username/12345?single", message("tg://resolve?domain=username&post=12345&single"));
-  parse_internal_link("t.me/username/12345?asdasd", message("tg://resolve?domain=username&post=12345"));
-  parse_internal_link("t.me/username/12345", message("tg://resolve?domain=username&post=12345"));
-  parse_internal_link("t.me/username/12345/", message("tg://resolve?domain=username&post=12345"));
-  parse_internal_link("t.me/username/12345#asdasd", message("tg://resolve?domain=username&post=12345"));
-  parse_internal_link("t.me/username/12345//?voicechat=&single",
-                      message("tg://resolve?domain=username&post=12345&single"));
-  parse_internal_link("t.me/username/12345/asdasd//asd/asd/asd/?single",
-                      message("tg://resolve?domain=username&post=12345&single"));
-  parse_internal_link("t.me/username/12345/67890/asdasd//asd/asd/asd/?single",
-                      message("tg://resolve?domain=username&post=67890&single&thread=12345"));
-  parse_internal_link("t.me/username/1asdasdas/asdasd//asd/asd/asd/?single",
-                      message("tg://resolve?domain=username&post=1&single"));
-  parse_internal_link("t.me/username/0", public_chat("username"));
-  parse_internal_link("t.me/username/-12345", public_chat("username"));
-  parse_internal_link("t.me//12345?single", nullptr);
-  parse_internal_link("https://telegram.dog/telegram/?single", public_chat("telegram"));
-  parse_internal_link("t.me/username?startattach", attachment_menu_bot(nullptr, nullptr, "username", ""));
-  parse_internal_link("t.me/username?startattach=1", attachment_menu_bot(nullptr, nullptr, "username", "1"));
-  parse_internal_link("t.me/username?startattach=1&choose=cats+dogs",
-                      attachment_menu_bot(nullptr, nullptr, "username", "1"));
-  parse_internal_link("t.me/username?startattach=1&choose=users",
-                      attachment_menu_bot(target_chat_chosen(true, false, false, false), nullptr, "username", "1"));
-  parse_internal_link("t.me/username?startattach=1&choose=bots",
-                      attachment_menu_bot(target_chat_chosen(false, true, false, false), nullptr, "username", "1"));
-  parse_internal_link("t.me/username?startattach=1&choose=groups",
-                      attachment_menu_bot(target_chat_chosen(false, false, true, false), nullptr, "username", "1"));
-  parse_internal_link("t.me/username?startattach=1&choose=channels",
-                      attachment_menu_bot(target_chat_chosen(false, false, false, true), nullptr, "username", "1"));
-  parse_internal_link("t.me/username?startattach=1&choose=bots+groups",
-                      attachment_menu_bot(target_chat_chosen(false, true, true, false), nullptr, "username", "1"));
-  parse_internal_link("t.me/username?attach=", public_chat("username"));
-  parse_internal_link("t.me/username?attach=&startattach", attachment_menu_bot(nullptr, nullptr, "username", ""));
-  parse_internal_link("t.me/username?attach=&startattach=1", attachment_menu_bot(nullptr, nullptr, "username", "1"));
-  parse_internal_link("t.me/username?attach=bot", attachment_menu_bot(nullptr, public_chat("username"), "bot", ""));
-  parse_internal_link("t.me/username?attach=bot&startattach",
-                      attachment_menu_bot(nullptr, public_chat("username"), "bot", ""));
-  parse_internal_link("t.me/username?attach=bot&startattach=1&choose=users",
-                      attachment_menu_bot(nullptr, public_chat("username"), "bot", "1"));
-  parse_internal_link("t.me/username?asd&profile=12", public_chat("username", "", true));
-  parse_internal_link("t.me/username?profile&text=@asd", public_chat("username", " @asd", true));
-
-  parse_internal_link("tg:privatepost?domain=username/12345&single",
-                      unknown_deep_link("tg://privatepost?domain=username/12345&single"));
-  parse_internal_link("tg:privatepost?channel=username/12345&single",
-                      unknown_deep_link("tg://privatepost?channel=username/12345&single"));
-  parse_internal_link("tg:privatepost?channel=username&post=12345",
-                      message("tg://privatepost?channel=username&post=12345"));
-
-  parse_internal_link("t.me/c/12345?single", nullptr);
-  parse_internal_link("t.me/c/1/c?single", nullptr);
-  parse_internal_link("t.me/c/c/1?single", nullptr);
-  parse_internal_link("t.me/c//1?single", nullptr);
-  parse_internal_link("t.me/c/12345/123", message("tg://privatepost?channel=12345&post=123"));
-  parse_internal_link("t.me/c/12345/123?single", message("tg://privatepost?channel=12345&post=123&single"));
-  parse_internal_link("t.me/c/12345/123/asd/asd////?single", message("tg://privatepost?channel=12345&post=123&single"));
-  parse_internal_link("t.me/c/12345/123/456/asd/asd////?single",
-                      message("tg://privatepost?channel=12345&post=456&single&thread=123"));
-  parse_internal_link("t.me/c/%312345/%3123?comment=456&t=789&single&thread=123%20%31",
-                      message("tg://privatepost?channel=12345&post=123&single&thread=123%201&comment=456&t=789"));
-  parse_internal_link("t.me/c/%312345/%3123?comment=456&t=2h3m101s&single&thread=123%20%31",
-                      message("tg://privatepost?channel=12345&post=123&single&thread=123%201&comment=456&t=2h3m101s"));
-
-  parse_internal_link("tg:bg?color=111111#asdasd", background("111111"));
-  parse_internal_link("tg:bg?color=11111%31", background("111111"));
-  parse_internal_link("tg:bg?color=11111%20", background("11111%20"));
-  parse_internal_link("tg:bg?gradient=111111-222222", background("111111-222222"));
-  parse_internal_link("tg:bg?rotation=180%20&gradient=111111-222222%20",
-                      background("111111-222222%20?rotation=180%20"));
-  parse_internal_link("tg:bg?gradient=111111~222222", background("111111~222222"));
-  parse_internal_link("tg:bg?gradient=abacaba", background("abacaba"));
-  parse_internal_link("tg:bg?slug=test#asdasd", background("test"));
-  parse_internal_link("tg:bg?slug=test&mode=blur", background("test?mode=blur"));
-  parse_internal_link("tg:bg?slug=test&mode=blur&text=1", background("test?mode=blur"));
-  parse_internal_link("tg:bg?slug=test&mode=blur&mode=1", background("test?mode=blur"));
-  parse_internal_link("tg:bg?slug=test&mode=blur&rotation=4&intensity=2&bg_color=3",
-                      background("test?mode=blur&intensity=2&bg_color=3&rotation=4"));
-  parse_internal_link("tg:bg?mode=blur&&slug=test&intensity=2&bg_color=3",
-                      background("test?mode=blur&intensity=2&bg_color=3"));
-  parse_internal_link("tg:bg?mode=blur&intensity=2&bg_color=3",
-                      unknown_deep_link("tg://bg?mode=blur&intensity=2&bg_color=3"));
-
-  parse_internal_link("tg:bg?color=111111#asdasd", background("111111"));
-  parse_internal_link("tg:bg?color=11111%31", background("111111"));
-  parse_internal_link("tg:bg?color=11111%20", background("11111%20"));
-  parse_internal_link("tg:bg?gradient=111111-222222", background("111111-222222"));
-  parse_internal_link("tg:bg?rotation=180%20&gradient=111111-222222%20",
-                      background("111111-222222%20?rotation=180%20"));
-  parse_internal_link("tg:bg?gradient=111111~222222&mode=blur", background("111111~222222"));
-  parse_internal_link("tg:bg?gradient=abacaba", background("abacaba"));
-  parse_internal_link("tg:bg?slug=test#asdasd", background("test"));
-  parse_internal_link("tg:bg?slug=test&mode=blur", background("test?mode=blur"));
-  parse_internal_link("tg:bg?slug=test&mode=blur&text=1", background("test?mode=blur"));
-  parse_internal_link("tg:bg?slug=test&mode=blur&mode=1", background("test?mode=blur"));
-  parse_internal_link("tg:bg?slug=test&mode=blur&rotation=4&intensity=2&bg_color=3",
-                      background("test?mode=blur&intensity=2&bg_color=3&rotation=4"));
-  parse_internal_link("tg:bg?mode=blur&&slug=test&intensity=2&bg_color=3",
-                      background("test?mode=blur&intensity=2&bg_color=3"));
-  parse_internal_link("tg:bg?mode=blur&intensity=2&bg_color=3",
-                      unknown_deep_link("tg://bg?mode=blur&intensity=2&bg_color=3"));
-
-  parse_internal_link("%54.me/bg/111111#asdasd", background("111111"));
-  parse_internal_link("t.me/bg/11111%31", background("111111"));
-  parse_internal_link("t.me/bg/11111%20", background("11111%20"));
-  parse_internal_link("t.me/bg/111111-222222", background("111111-222222"));
-  parse_internal_link("t.me/bg/111111-222222%20?rotation=180%20", background("111111-222222%20?rotation=180%20"));
-  parse_internal_link("t.me/bg/111111~222222", background("111111~222222"));
-  parse_internal_link("t.me/bg/abacaba", background("abacaba"));
-  parse_internal_link("t.me/Bg/abacaba", web_app("Bg", "abacaba", "", false, false));
-  parse_internal_link("t.me/bg/111111~222222#asdasd", background("111111~222222"));
-  parse_internal_link("t.me/bg/111111~222222?mode=blur", background("111111~222222"));
-  parse_internal_link("t.me/bg/111111~222222?mode=blur&text=1", background("111111~222222"));
-  parse_internal_link("t.me/bg/111111~222222?mode=blur&mode=1", background("111111~222222"));
-  parse_internal_link("t.me/bg/testteststststststststststststs?mode=blur&rotation=4&intensity=2&bg_color=3&mode=1",
-                      background("testteststststststststststststs?mode=blur&intensity=2&bg_color=3&rotation=4"));
-  parse_internal_link("t.me/%62g/testteststststststststststststs/?mode=blur+motion&&&intensity=2&bg_color=3",
-                      background("testteststststststststststststs?mode=blur%20motion&intensity=2&bg_color=3"));
-  parse_internal_link("t.me/bg//", nullptr);
-  parse_internal_link("t.me/bg/%20/", background("%20"));
-  parse_internal_link("t.me/bg/", nullptr);
-}
-
-TEST(Link, parse_internal_link_part2) {
-  parse_internal_link("t.me/invoice?slug=abcdef", nullptr);
-  parse_internal_link("t.me/invoice", nullptr);
-  parse_internal_link("t.me/invoice/", nullptr);
-  parse_internal_link("t.me/invoice//abcdef", nullptr);
-  parse_internal_link("t.me/invoice?/abcdef", nullptr);
-  parse_internal_link("t.me/invoice/?abcdef", nullptr);
-  parse_internal_link("t.me/invoice/#abcdef", nullptr);
-  parse_internal_link("t.me/invoice/abacaba", invoice("abacaba"));
-  parse_internal_link("t.me/invoice/aba%20aba", invoice("aba aba"));
-  parse_internal_link("t.me/invoice/123456a", invoice("123456a"));
-  parse_internal_link("t.me/invoice/12345678901", invoice("12345678901"));
-  parse_internal_link("t.me/invoice/123456", invoice("123456"));
-  parse_internal_link("t.me/invoice/123456/123123/12/31/a/s//21w/?asdas#test", invoice("123456"));
-
-  parse_internal_link("t.me/$?slug=abcdef", nullptr);
-  parse_internal_link("t.me/$", nullptr);
-  parse_internal_link("t.me/$/abcdef", nullptr);
-  parse_internal_link("t.me/$?/abcdef", nullptr);
-  parse_internal_link("t.me/$?abcdef", nullptr);
-  parse_internal_link("t.me/$#abcdef", nullptr);
-  parse_internal_link("t.me/$abacaba", invoice("abacaba"));
-  parse_internal_link("t.me/$aba%20aba", invoice("aba aba"));
-  parse_internal_link("t.me/$123456a", invoice("123456a"));
-  parse_internal_link("t.me/$12345678901", invoice("12345678901"));
-  parse_internal_link("t.me/$123456", invoice("123456"));
-  parse_internal_link("t.me/%24123456", invoice("123456"));
-  parse_internal_link("t.me/$123456/123123/12/31/a/s//21w/?asdas#test", invoice("123456"));
-
-  parse_internal_link("tg:invoice?slug=abcdef", invoice("abcdef"));
-  parse_internal_link("tg:invoice?slug=abc%30ef", invoice("abc0ef"));
-  parse_internal_link("tg://invoice?slug=", unknown_deep_link("tg://invoice?slug="));
-
-  parse_internal_link("t.me/giftcode?slug=abcdef", nullptr);
-  parse_internal_link("t.me/giftcode", nullptr);
-  parse_internal_link("t.me/giftcode/", nullptr);
-  parse_internal_link("t.me/giftcode//abcdef", nullptr);
-  parse_internal_link("t.me/giftcode?/abcdef", nullptr);
-  parse_internal_link("t.me/giftcode/?abcdef", nullptr);
-  parse_internal_link("t.me/giftcode/#abcdef", nullptr);
-  parse_internal_link("t.me/giftcode/abacaba", premium_gift_code("abacaba"));
-  parse_internal_link("t.me/giftcode/aba%20aba", premium_gift_code("aba aba"));
-  parse_internal_link("t.me/giftcode/123456a", premium_gift_code("123456a"));
-  parse_internal_link("t.me/giftcode/12345678901", premium_gift_code("12345678901"));
-  parse_internal_link("t.me/giftcode/123456", premium_gift_code("123456"));
-  parse_internal_link("t.me/giftcode/123456/123123/12/31/a/s//21w/?asdas#test", premium_gift_code("123456"));
-
-  parse_internal_link("tg:giftcode?slug=abcdef", premium_gift_code("abcdef"));
-  parse_internal_link("tg:giftcode?slug=abc%30ef", premium_gift_code("abc0ef"));
-  parse_internal_link("tg://giftcode?slug=", unknown_deep_link("tg://giftcode?slug="));
-
-  parse_internal_link("t.me/m?slug=abcdef", nullptr);
-  parse_internal_link("t.me/m", nullptr);
-  parse_internal_link("t.me/m/", nullptr);
-  parse_internal_link("t.me/m//abcdef", nullptr);
-  parse_internal_link("t.me/m?/abcdef", nullptr);
-  parse_internal_link("t.me/m/?abcdef", nullptr);
-  parse_internal_link("t.me/m/#abcdef", nullptr);
-  parse_internal_link("t.me/m/abacaba", business_chat("abacaba"));
-  parse_internal_link("t.me/m/aba%20aba", business_chat("aba aba"));
-  parse_internal_link("t.me/m/123456a", business_chat("123456a"));
-  parse_internal_link("t.me/m/12345678901", business_chat("12345678901"));
-  parse_internal_link("t.me/m/123456", business_chat("123456"));
-  parse_internal_link("t.me/m/123456/123123/12/31/a/s//21w/?asdas#test", business_chat("123456"));
-
-  parse_internal_link("tg:message?slug=abcdef", business_chat("abcdef"));
-  parse_internal_link("tg:message?slug=abc%30ef", business_chat("abc0ef"));
-  parse_internal_link("tg://message?slug=", unknown_deep_link("tg://message?slug="));
-
-  parse_internal_link("tg:share?url=google.com&text=text#asdasd", message_draft("google.com\ntext", true));
-  parse_internal_link("tg:share?url=google.com&text=", message_draft("google.com", false));
-  parse_internal_link("tg:share?url=&text=google.com", message_draft("google.com", false));
-  parse_internal_link("tg:msg_url?url=google.com&text=text", message_draft("google.com\ntext", true));
-  parse_internal_link("tg:msg_url?url=google.com&text=", message_draft("google.com", false));
-  parse_internal_link("tg:msg_url?url=&text=google.com", message_draft("google.com", false));
-  parse_internal_link("tg:msg?url=google.com&text=text", message_draft("google.com\ntext", true));
-  parse_internal_link("tg:msg?url=google.com&text=", message_draft("google.com", false));
-  parse_internal_link("tg:msg?url=&text=google.com", message_draft("google.com", false));
-  parse_internal_link("tg:msg?url=&text=\n\n\n\n\n\n\n\n", nullptr);
-  parse_internal_link("tg:msg?url=%20\n&text=", nullptr);
-  parse_internal_link("tg:msg?url=%20\n&text=google.com", message_draft("google.com", false));
-  parse_internal_link("tg:msg?url=@&text=", message_draft(" @", false));
-  parse_internal_link("tg:msg?url=&text=@", message_draft(" @", false));
-  parse_internal_link("tg:msg?url=@&text=@", message_draft(" @\n@", true));
-  parse_internal_link("tg:msg?url=%FF&text=1", nullptr);
-
-  parse_internal_link("https://t.me/share?url=google.com&text=text#asdasd", message_draft("google.com\ntext", true));
-  parse_internal_link("https://t.me/share?url=google.com&text=", message_draft("google.com", false));
-  parse_internal_link("https://t.me/share?url=&text=google.com", message_draft("google.com", false));
-  parse_internal_link("https://t.me/msg?url=google.com&text=text", message_draft("google.com\ntext", true));
-  parse_internal_link("https://t.me/msg?url=google.com&text=", message_draft("google.com", false));
-  parse_internal_link("https://t.me/msg?url=&text=google.com", message_draft("google.com", false));
-  parse_internal_link("https://t.me/msg?url=google.com&text=text", message_draft("google.com\ntext", true));
-  parse_internal_link("https://t.me/msg?url=google.com&text=", message_draft("google.com", false));
-  parse_internal_link("https://t.me/msg?url=&text=google.com", message_draft("google.com", false));
-  parse_internal_link("https://t.me/msg?url=&text=\n\n\n\n\n\n\n\n", nullptr);
-  parse_internal_link("https://t.me/msg?url=%20%0A&text=", nullptr);
-  parse_internal_link("https://t.me/msg?url=%20%0A&text=google.com", message_draft("google.com", false));
-  parse_internal_link("https://t.me/msg?url=@&text=", message_draft(" @", false));
-  parse_internal_link("https://t.me/msg?url=&text=@", message_draft(" @", false));
-  parse_internal_link("https://t.me/msg?url=@&text=@", message_draft(" @\n@", true));
-  parse_internal_link("https://t.me/msg?url=%FF&text=1", nullptr);
-
-  parse_internal_link("tg:login?codec=12345", unknown_deep_link("tg://login?codec=12345"));
-  parse_internal_link("tg:login", unknown_deep_link("tg://login"));
-  parse_internal_link("tg:login?code=abacaba", authentication_code("abacaba"));
-  parse_internal_link("tg:login?code=123456", authentication_code("123456"));
-
-  parse_internal_link("t.me/login?codec=12345", nullptr);
-  parse_internal_link("t.me/login", nullptr);
-  parse_internal_link("t.me/login/", nullptr);
-  parse_internal_link("t.me/login//12345", nullptr);
-  parse_internal_link("t.me/login?/12345", nullptr);
-  parse_internal_link("t.me/login/?12345", nullptr);
-  parse_internal_link("t.me/login/#12345", nullptr);
-  parse_internal_link("t.me/login/abacaba", authentication_code("abacaba"));
-  parse_internal_link("t.me/login/aba%20aba", authentication_code("aba aba"));
-  parse_internal_link("t.me/login/123456a", authentication_code("123456a"));
-  parse_internal_link("t.me/login/12345678901", authentication_code("12345678901"));
-  parse_internal_link("t.me/login/123456", authentication_code("123456"));
-  parse_internal_link("t.me/login/123456/123123/12/31/a/s//21w/?asdas#test", authentication_code("123456"));
-
-  parse_internal_link("tg:login?token=abacaba", qr_code_authentication());
-  parse_internal_link("tg:login?token=", unknown_deep_link("tg://login?token="));
-
-  parse_internal_link("tg:restore_purchases?token=abacaba", restore_purchases());
-  parse_internal_link("tg:restore_purchases?#", restore_purchases());
-  parse_internal_link("tg:restore_purchases/?#", restore_purchases());
-  parse_internal_link("tg:restore_purchases", restore_purchases());
-  parse_internal_link("tg:restore_purchase", unknown_deep_link("tg://restore_purchase"));
-  parse_internal_link("tg:restore_purchasess", unknown_deep_link("tg://restore_purchasess"));
-  parse_internal_link("tg:restore_purchases/test?#", unknown_deep_link("tg://restore_purchases/test?"));
-
-  parse_internal_link("t.me/joinchat?invite=abcdef", nullptr);
-  parse_internal_link("t.me/joinchat", nullptr);
-  parse_internal_link("t.me/joinchat/", nullptr);
-  parse_internal_link("t.me/joinchat//abcdef", nullptr);
-  parse_internal_link("t.me/joinchat?/abcdef", nullptr);
-  parse_internal_link("t.me/joinchat/?abcdef", nullptr);
-  parse_internal_link("t.me/joinchat/#abcdef", nullptr);
-  parse_internal_link("t.me/joinchat/abacaba", chat_invite("abacaba"));
-  parse_internal_link("t.me/joinchat/aba%20aba", nullptr);
-  parse_internal_link("t.me/joinchat/aba%30aba", chat_invite("aba0aba"));
-  parse_internal_link("t.me/joinchat/123456a", chat_invite("123456a"));
-  parse_internal_link("t.me/joinchat/12345678901", nullptr);
-  parse_internal_link("t.me/joinchat/123456", nullptr);
-  parse_internal_link("t.me/joinchat/123456/123123/12/31/a/s//21w/?asdas#test", nullptr);
-  parse_internal_link("t.me/joinchat/12345678901a", chat_invite("12345678901a"));
-  parse_internal_link("t.me/joinchat/123456a", chat_invite("123456a"));
-  parse_internal_link("t.me/joinchat/123456a/123123/12/31/a/s//21w/?asdas#test", chat_invite("123456a"));
-
-  parse_internal_link("t.me/+?invite=abcdef", nullptr);
-  parse_internal_link("t.me/+a", chat_invite("a"));
-  parse_internal_link("t.me/+", nullptr);
-  parse_internal_link("t.me/+/abcdef", nullptr);
-  parse_internal_link("t.me/ ?/abcdef", nullptr);
-  parse_internal_link("t.me/+?abcdef", nullptr);
-  parse_internal_link("t.me/+#abcdef", nullptr);
-  parse_internal_link("t.me/ abacaba", chat_invite("abacaba"));
-  parse_internal_link("t.me/+aba%20aba", nullptr);
-  parse_internal_link("t.me/+aba%30aba", chat_invite("aba0aba"));
-  parse_internal_link("t.me/+123456a", chat_invite("123456a"));
-  parse_internal_link("t.me/%2012345678901", user_phone_number("12345678901"));
-  parse_internal_link("t.me/+123456", user_phone_number("123456"));
-  parse_internal_link("t.me/ 123456/123123/12/31/a/s//21w/?asdas#test", user_phone_number("123456"));
-  parse_internal_link("t.me/ /123456/123123/12/31/a/s//21w/?asdas#test", nullptr);
-  parse_internal_link("t.me/+123456?startattach", user_phone_number("123456"));
-  parse_internal_link("t.me/+123456?startattach=1", user_phone_number("123456"));
-  parse_internal_link("t.me/+123456?attach=", user_phone_number("123456"));
-  parse_internal_link("t.me/+123456?attach=&startattach", user_phone_number("123456"));
-  parse_internal_link("t.me/+123456?attach=&startattach=1", user_phone_number("123456"));
-  parse_internal_link("t.me/+123456?attach=bot", attachment_menu_bot(nullptr, user_phone_number("123456"), "bot", ""));
-  parse_internal_link("t.me/+123456?attach=bot&startattach&profile",
-                      attachment_menu_bot(nullptr, user_phone_number("123456"), "bot", ""));
-  parse_internal_link("t.me/+123456?attach=bot&startattach=1",
-                      attachment_menu_bot(nullptr, user_phone_number("123456"), "bot", "1"));
-  parse_internal_link("t.me/+123456?profile", user_phone_number("123456", "", true));
-  parse_internal_link("t.me/+123456?profile&text=@asd", user_phone_number("123456", " @asd", true));
-
-  parse_internal_link("telegram.t.me?text=asd", public_chat("telegram", "asd"));
-  parse_internal_link("t.me/%2012345678901?text=asd", user_phone_number("12345678901", "asd"));
-  parse_internal_link("t.me/telegram?text=@asd", public_chat("telegram", " @asd"));
-  parse_internal_link("t.me/%2012345678901?text=@asd", user_phone_number("12345678901", " @asd"));
-  parse_internal_link("t.me/telegram?text=1%A02", public_chat("telegram"));
-  parse_internal_link("t.me/%2012345678901?text=1%A02", user_phone_number("12345678901"));
-
-  parse_internal_link("t.me/addlist?invite=abcdef", nullptr);
-  parse_internal_link("t.me/addlist", nullptr);
-  parse_internal_link("t.me/addlist/", nullptr);
-  parse_internal_link("t.me/addlist//abcdef", nullptr);
-  parse_internal_link("t.me/addlist?/abcdef", nullptr);
-  parse_internal_link("t.me/addlist/?abcdef", nullptr);
-  parse_internal_link("t.me/addlist/#abcdef", nullptr);
-  parse_internal_link("t.me/addlist/abacaba", chat_folder_invite("abacaba"));
-  parse_internal_link("t.me/addlist/aba%20aba", nullptr);
-  parse_internal_link("t.me/addlist/aba%30aba", chat_folder_invite("aba0aba"));
-  parse_internal_link("t.me/addlist/123456a", chat_folder_invite("123456a"));
-  parse_internal_link("t.me/addlist/12345678901", chat_folder_invite("12345678901"));
-  parse_internal_link("t.me/addlist/123456", chat_folder_invite("123456"));
-  parse_internal_link("t.me/addlist/123456/123123/12/31/a/s//21w/?asdas#test", chat_folder_invite("123456"));
-  parse_internal_link("t.me/addlist/12345678901a", chat_folder_invite("12345678901a"));
-  parse_internal_link("t.me/addlist/123456a", chat_folder_invite("123456a"));
-  parse_internal_link("t.me/addlist/123456a/123123/12/31/a/s//21w/?asdas#test", chat_folder_invite("123456a"));
-
-  parse_internal_link("t.me/contact/startattach/adasd", user_token("startattach"));
-  parse_internal_link("t.me/contact/startattach", user_token("startattach"));
-  parse_internal_link("t.me/contact/startattach=1", user_token("startattach=1"));
-  parse_internal_link("t.me/contact/", nullptr);
-  parse_internal_link("t.me/contact/?attach=&startattach", nullptr);
-
-  parse_internal_link("t.me/nft/startattach/adasd", upgraded_gift("startattach/adasd"));
-  parse_internal_link("t.me/nft/startattach", upgraded_gift("startattach"));
-  parse_internal_link("t.me/nft/startattach=1", upgraded_gift("startattach=1"));
-  parse_internal_link("t.me/nft/", nullptr);
-  parse_internal_link("t.me/nft/?attach=&startattach", nullptr);
-
-  parse_internal_link("tg:join?invite=abcdef", chat_invite("abcdef"));
-  parse_internal_link("tg:join?invite=abc%20def", unknown_deep_link("tg://join?invite=abc%20def"));
-  parse_internal_link("tg://join?invite=abc%30def", chat_invite("abc0def"));
-  parse_internal_link("tg:join?invite=", unknown_deep_link("tg://join?invite="));
-
-  parse_internal_link("tg:addlist?slug=abcdef", chat_folder_invite("abcdef"));
-  parse_internal_link("tg:addlist?slug=abc%20def", unknown_deep_link("tg://addlist?slug=abc%20def"));
-  parse_internal_link("tg://addlist?slug=abc%30def", chat_folder_invite("abc0def"));
-  parse_internal_link("tg:addlist?slug=", unknown_deep_link("tg://addlist?slug="));
-
-  parse_internal_link("t.me/addstickers?set=abcdef", nullptr);
-  parse_internal_link("t.me/addstickers", nullptr);
-  parse_internal_link("t.me/addstickers/", nullptr);
-  parse_internal_link("t.me/addstickers//abcdef", nullptr);
-  parse_internal_link("t.me/addstickers?/abcdef", nullptr);
-  parse_internal_link("t.me/addstickers/?abcdef", nullptr);
-  parse_internal_link("t.me/addstickers/#abcdef", nullptr);
-  parse_internal_link("t.me/addstickers/abacaba", sticker_set("abacaba", false));
-  parse_internal_link("t.me/addstickers/aba%20aba", sticker_set("aba aba", false));
-  parse_internal_link("t.me/addstickers/123456a", sticker_set("123456a", false));
-  parse_internal_link("t.me/addstickers/12345678901", sticker_set("12345678901", false));
-  parse_internal_link("t.me/addstickers/123456", sticker_set("123456", false));
-  parse_internal_link("t.me/addstickers/123456/123123/12/31/a/s//21w/?asdas#test", sticker_set("123456", false));
-
-  parse_internal_link("tg:addstickers?set=abcdef", sticker_set("abcdef", false));
-  parse_internal_link("tg:addstickers?set=abc%30ef", sticker_set("abc0ef", false));
-  parse_internal_link("tg://addstickers?set=", unknown_deep_link("tg://addstickers?set="));
-
-  parse_internal_link("t.me/addemoji?set=abcdef", nullptr);
-  parse_internal_link("t.me/addemoji", nullptr);
-  parse_internal_link("t.me/addemoji/", nullptr);
-  parse_internal_link("t.me/addemoji//abcdef", nullptr);
-  parse_internal_link("t.me/addemoji?/abcdef", nullptr);
-  parse_internal_link("t.me/addemoji/?abcdef", nullptr);
-  parse_internal_link("t.me/addemoji/#abcdef", nullptr);
-  parse_internal_link("t.me/addemoji/abacaba", sticker_set("abacaba", true));
-  parse_internal_link("t.me/addemoji/aba%20aba", sticker_set("aba aba", true));
-  parse_internal_link("t.me/addemoji/123456a", sticker_set("123456a", true));
-  parse_internal_link("t.me/addemoji/12345678901", sticker_set("12345678901", true));
-  parse_internal_link("t.me/addemoji/123456", sticker_set("123456", true));
-  parse_internal_link("t.me/addemoji/123456/123123/12/31/a/s//21w/?asdas#test", sticker_set("123456", true));
-
-  parse_internal_link("tg:addemoji?set=abcdef", sticker_set("abcdef", true));
-  parse_internal_link("tg:addemoji?set=abc%30ef", sticker_set("abc0ef", true));
-  parse_internal_link("tg://addemoji?set=", unknown_deep_link("tg://addemoji?set="));
-}
-
-TEST(Link, parse_internal_link_part3) {
-  parse_internal_link("t.me/confirmphone?hash=abc%30ef&phone=", nullptr);
-  parse_internal_link("t.me/confirmphone/123456/123123/12/31/a/s//21w/?hash=abc%30ef&phone=123456789",
-                      phone_number_confirmation("abc0ef", "123456789"));
-  parse_internal_link("t.me/confirmphone?hash=abc%30ef&phone=123456789",
-                      phone_number_confirmation("abc0ef", "123456789"));
-
-  parse_internal_link("tg:confirmphone?hash=abc%30ef&phone=",
-                      unknown_deep_link("tg://confirmphone?hash=abc%30ef&phone="));
-  parse_internal_link("tg:confirmphone?hash=abc%30ef&phone=123456789",
-                      phone_number_confirmation("abc0ef", "123456789"));
-  parse_internal_link("tg://confirmphone?hash=123&phone=123456789123456789",
-                      phone_number_confirmation("123", "123456789123456789"));
-  parse_internal_link("tg://confirmphone?hash=&phone=123456789123456789",
-                      unknown_deep_link("tg://confirmphone?hash=&phone=123456789123456789"));
-  parse_internal_link("tg://confirmphone?hash=123456789123456789&phone=",
-                      unknown_deep_link("tg://confirmphone?hash=123456789123456789&phone="));
-
-  parse_internal_link("t.me/setlanguage?lang=abcdef", nullptr);
-  parse_internal_link("t.me/setlanguage", nullptr);
-  parse_internal_link("t.me/setlanguage/", nullptr);
-  parse_internal_link("t.me/setlanguage//abcdef", nullptr);
-  parse_internal_link("t.me/setlanguage?/abcdef", nullptr);
-  parse_internal_link("t.me/setlanguage/?abcdef", nullptr);
-  parse_internal_link("t.me/setlanguage/#abcdef", nullptr);
-  parse_internal_link("t.me/setlanguage/abacaba", language_pack("abacaba"));
-  parse_internal_link("t.me/setlanguage/aba%20aba", language_pack("aba aba"));
-  parse_internal_link("t.me/setlanguage/123456a", language_pack("123456a"));
-  parse_internal_link("t.me/setlanguage/12345678901", language_pack("12345678901"));
-  parse_internal_link("t.me/setlanguage/123456", language_pack("123456"));
-  parse_internal_link("t.me/setlanguage/123456/123123/12/31/a/s//21w/?asdas#test", language_pack("123456"));
-
-  parse_internal_link("tg:setlanguage?lang=abcdef", language_pack("abcdef"));
-  parse_internal_link("tg:setlanguage?lang=abc%30ef", language_pack("abc0ef"));
-  parse_internal_link("tg://setlanguage?lang=", unknown_deep_link("tg://setlanguage?lang="));
-
-  parse_internal_link(
-      "http://telegram.dog/iv?url=https://telegram.org&rhash=abcdef&test=1&tg_rhash=1",
-      instant_view("https://t.me/iv?url=https%3A%2F%2Ftelegram.org&rhash=abcdef", "https://telegram.org"));
-  parse_internal_link("t.me/iva?url=https://telegram.org&rhash=abcdef", public_chat("iva"));
-  parse_internal_link("t.me/iv?url=&rhash=abcdef", nullptr);
-  parse_internal_link("t.me/iv?url=https://telegram.org&rhash=",
-                      instant_view("https://t.me/iv?url=https%3A%2F%2Ftelegram.org&rhash", "https://telegram.org"));
-  parse_internal_link("t.me/iv//////?url=https://telegram.org&rhash=",
-                      instant_view("https://t.me/iv?url=https%3A%2F%2Ftelegram.org&rhash", "https://telegram.org"));
-  parse_internal_link("t.me/iv/////1/?url=https://telegram.org&rhash=", nullptr);
-  parse_internal_link("t.me/iv", nullptr);
-  parse_internal_link("t.me/iv?#url=https://telegram.org&rhash=abcdef", nullptr);
-  parse_internal_link("tg:iv?url=https://telegram.org&rhash=abcdef",
-                      unknown_deep_link("tg://iv?url=https://telegram.org&rhash=abcdef"));
-
-  parse_internal_link("t.me/addtheme?slug=abcdef", nullptr);
-  parse_internal_link("t.me/addtheme", nullptr);
-  parse_internal_link("t.me/addtheme/", nullptr);
-  parse_internal_link("t.me/addtheme//abcdef", nullptr);
-  parse_internal_link("t.me/addtheme?/abcdef", nullptr);
-  parse_internal_link("t.me/addtheme/?abcdef", nullptr);
-  parse_internal_link("t.me/addtheme/#abcdef", nullptr);
-  parse_internal_link("t.me/addtheme/abacaba", theme("abacaba"));
-  parse_internal_link("t.me/addtheme/aba%20aba", theme("aba aba"));
-  parse_internal_link("t.me/addtheme/123456a", theme("123456a"));
-  parse_internal_link("t.me/addtheme/12345678901", theme("12345678901"));
-  parse_internal_link("t.me/addtheme/123456", theme("123456"));
-  parse_internal_link("t.me/addtheme/123456/123123/12/31/a/s//21w/?asdas#test", theme("123456"));
-
-  parse_internal_link("tg:addtheme?slug=abcdef", theme("abcdef"));
-  parse_internal_link("tg:addtheme?slug=abc%30ef", theme("abc0ef"));
-  parse_internal_link("tg://addtheme?slug=", unknown_deep_link("tg://addtheme?slug="));
-
-  parse_internal_link("t.me/proxy?server=1.2.3.4&port=80&secret=1234567890abcdef1234567890ABCDEF",
-                      proxy_mtproto("1.2.3.4", 80, "1234567890abcdef1234567890abcdef"));
-  parse_internal_link("t.me/proxy?server=1.2.3.4&port=80adasdas&secret=1234567890abcdef1234567890ABCDEF",
-                      proxy_mtproto("1.2.3.4", 80, "1234567890abcdef1234567890abcdef"));
-  parse_internal_link("t.me/proxy?server=1.2.3.4&port=adasdas&secret=1234567890abcdef1234567890ABCDEF",
-                      unsupported_proxy());
-  parse_internal_link("t.me/proxy?server=1.2.3.4&port=65536&secret=1234567890abcdef1234567890ABCDEF",
-                      unsupported_proxy());
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=", unsupported_proxy());
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=12", unsupported_proxy());
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=1234567890abcdef1234567890ABCDEF",
-                      proxy_mtproto("google.com", 80, "1234567890abcdef1234567890abcdef"));
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=dd1234567890abcdef1234567890ABCDEF",
-                      proxy_mtproto("google.com", 80, "dd1234567890abcdef1234567890abcdef"));
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=de1234567890abcdef1234567890ABCDEF",
-                      unsupported_proxy());
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=ee1234567890abcdef1234567890ABCDEF",
-                      unsupported_proxy());
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=ee1234567890abcdef1234567890ABCDEF0",
-                      unsupported_proxy());
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=ee1234567890abcdef1234567890ABCDEF%30%30",
-                      proxy_mtproto("google.com", 80, "7hI0VniQq83vEjRWeJCrze8A"));
-  parse_internal_link(
-      "t.me/proxy?server=google.com&port=8%30&secret=ee1234567890abcdef1234567890ABCDEF010101010101010101",
-      proxy_mtproto("google.com", 80, "7hI0VniQq83vEjRWeJCrze8BAQEBAQEBAQE"));
-  parse_internal_link("t.me/proxy?server=google.com&port=8%30&secret=7tAAAAAAAAAAAAAAAAAAAAAAAAcuZ29vZ2xlLmNvbQ",
-                      proxy_mtproto("google.com", 80, "7tAAAAAAAAAAAAAAAAAAAAAAAAcuZ29vZ2xlLmNvbQ"));
-
-  parse_internal_link("tg:proxy?server=1.2.3.4&port=80&secret=1234567890abcdef1234567890ABCDEF",
-                      proxy_mtproto("1.2.3.4", 80, "1234567890abcdef1234567890abcdef"));
-  parse_internal_link("tg:proxy?server=1.2.3.4&port=80adasdas&secret=1234567890abcdef1234567890ABCDEF",
-                      proxy_mtproto("1.2.3.4", 80, "1234567890abcdef1234567890abcdef"));
-  parse_internal_link("tg:proxy?server=1.2.3.4&port=adasdas&secret=1234567890abcdef1234567890ABCDEF",
-                      unsupported_proxy());
-  parse_internal_link("tg:proxy?server=1.2.3.4&port=65536&secret=1234567890abcdef1234567890ABCDEF",
-                      unsupported_proxy());
-  parse_internal_link("tg:proxy?server=google.com&port=8%30&secret=1234567890abcdef1234567890ABCDEF",
-                      proxy_mtproto("google.com", 80, "1234567890abcdef1234567890abcdef"));
-  parse_internal_link("tg:proxy?server=google.com&port=8%30&secret=dd1234567890abcdef1234567890ABCDEF",
-                      proxy_mtproto("google.com", 80, "dd1234567890abcdef1234567890abcdef"));
-  parse_internal_link("tg:proxy?server=google.com&port=8%30&secret=de1234567890abcdef1234567890ABCDEF",
-                      unsupported_proxy());
-
-  parse_internal_link("t.me/socks?server=1.2.3.4&port=80", proxy_socks("1.2.3.4", 80, "", ""));
-  parse_internal_link("t.me/socks?server=1.2.3.4&port=80adasdas", proxy_socks("1.2.3.4", 80, "", ""));
-  parse_internal_link("t.me/socks?server=1.2.3.4&port=adasdas", unsupported_proxy());
-  parse_internal_link("t.me/socks?server=1.2.3.4&port=65536", unsupported_proxy());
-  parse_internal_link("t.me/socks?server=google.com&port=8%30", proxy_socks("google.com", 80, "", ""));
-  parse_internal_link("t.me/socks?server=google.com&port=8%30&user=1&pass=", proxy_socks("google.com", 80, "1", ""));
-  parse_internal_link("t.me/socks?server=google.com&port=8%30&user=&pass=2", proxy_socks("google.com", 80, "", "2"));
-  parse_internal_link("t.me/socks?server=google.com&port=80&user=1&pass=2", proxy_socks("google.com", 80, "1", "2"));
-
-  parse_internal_link("tg:socks?server=1.2.3.4&port=80", proxy_socks("1.2.3.4", 80, "", ""));
-  parse_internal_link("tg:socks?server=1.2.3.4&port=80adasdas", proxy_socks("1.2.3.4", 80, "", ""));
-  parse_internal_link("tg:socks?server=1.2.3.4&port=adasdas", unsupported_proxy());
-  parse_internal_link("tg:socks?server=1.2.3.4&port=65536", unsupported_proxy());
-  parse_internal_link("tg:socks?server=google.com&port=8%30", proxy_socks("google.com", 80, "", ""));
-  parse_internal_link("tg:socks?server=google.com&port=8%30&user=1&pass=", proxy_socks("google.com", 80, "1", ""));
-  parse_internal_link("tg:socks?server=google.com&port=8%30&user=&pass=2", proxy_socks("google.com", 80, "", "2"));
-  parse_internal_link("tg:socks?server=google.com&port=80&user=1&pass=2", proxy_socks("google.com", 80, "1", "2"));
-
-  parse_internal_link("tg:resolve?domain=username&voice%63hat=aasdasd", video_chat("username", "aasdasd", false));
-  parse_internal_link("tg:resolve?domain=username&video%63hat=aasdasd", video_chat("username", "aasdasd", false));
-  parse_internal_link("tg:resolve?domain=username&livestream=aasdasd", video_chat("username", "aasdasd", true));
-  parse_internal_link("TG://resolve?domain=username&voicechat=", video_chat("username", "", false));
-  parse_internal_link("TG://test@resolve?domain=username&voicechat=", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username&voicechat=", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username&voicechat=", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username&voicechat=", nullptr);
-  parse_internal_link("tg:resolve?domain=&voicechat=", unknown_deep_link("tg://resolve?domain=&voicechat="));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&voicechat=%30", video_chat("telegram", "0", false));
-
-  parse_internal_link("t.me/username/0/a//s/as?voicechat=", video_chat("username", "", false));
-  parse_internal_link("t.me/username/0/a//s/as?videochat=2", video_chat("username", "2", false));
-  parse_internal_link("t.me/username/0/a//s/as?livestream=3", video_chat("username", "3", true));
-  parse_internal_link("t.me/username/aasdas/2?test=1&voicechat=#12312", video_chat("username", "", false));
-  parse_internal_link("t.me/username/0?voicechat=", video_chat("username", "", false));
-  parse_internal_link("t.me/username/-1?voicechat=asdasd", video_chat("username", "asdasd", false));
-  parse_internal_link("t.me/username?voicechat=", video_chat("username", "", false));
-  parse_internal_link("t.me/username#voicechat=asdas", public_chat("username"));
-  parse_internal_link("t.me//username?voicechat=", nullptr);
-  parse_internal_link("https://telegram.dog/tele%63ram?voi%63e%63hat=t%63st", video_chat("telecram", "tcst", false));
-
-  parse_internal_link("tg:resolve?domain=username&start=aasdasd", bot_start("username", "aasdasd"));
-  parse_internal_link("TG://resolve?domain=username&start=", bot_start("username", ""));
-  parse_internal_link("TG://test@resolve?domain=username&start=", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username&start=", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username&start=", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username&start=", nullptr);
-  parse_internal_link("tg:resolve?domain=&start=", unknown_deep_link("tg://resolve?domain=&start="));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&start=%30", bot_start("telegram", "0"));
-
-  parse_internal_link("t.me/username/0/a//s/as?start=", bot_start("username", ""));
-  parse_internal_link("t.me/username/aasdas/2?test=1&start=#12312", bot_start("username", ""));
-  parse_internal_link("t.me/username/0?start=", bot_start("username", ""));
-  parse_internal_link("t.me/username/-1?start=asdasd", bot_start("username", "asdasd"));
-  parse_internal_link("t.me/username?start=", bot_start("username", ""));
-  parse_internal_link("t.me/username#start=asdas", public_chat("username"));
-  parse_internal_link("t.me//username?start=", nullptr);
-  parse_internal_link("https://telegram.dog/tele%63ram?start=t%63st", bot_start("telecram", "tcst"));
-
-  parse_internal_link("tg:resolve?domain=username&start=_tgr_", bot_start("username", "_tgr_"));
-  parse_internal_link("tg:resolve?domain=username&start=_tgr_aSd", chat_affiliate_program("username", "aSd"));
-  parse_internal_link("tg:resolve?domain=username&start=_tgr_a%30Sd", chat_affiliate_program("username", "a0Sd"));
-
-  parse_internal_link("t.me/username/0/a//s/as?start=_tgr_", bot_start("username", "_tgr_"));
-  parse_internal_link("t.me/username/0/a//s/as?start=_tgr_aSd", chat_affiliate_program("username", "aSd"));
-  parse_internal_link("t.me/username/0/a//s/as?start=_tgr_a%30Sd", chat_affiliate_program("username", "a0Sd"));
-
-  parse_internal_link("tg:resolve?domain=username&ref=", public_chat("username"));
-  parse_internal_link("tg:resolve?domain=username&ref=aSd", chat_affiliate_program("username", "aSd"));
-  parse_internal_link("tg:resolve?domain=username&ref=a%30Sd", chat_affiliate_program("username", "a0Sd"));
-
-  parse_internal_link("t.me/username/0/a//s/as?ref=", public_chat("username"));
-  parse_internal_link("t.me/username/0/a//s/as?ref=aSd", chat_affiliate_program("username", "aSd"));
-  parse_internal_link("t.me/username/0/a//s/as?ref=a%30Sd", chat_affiliate_program("username", "a0Sd"));
-
-  parse_internal_link("tg:resolve?domain=username&startgroup=aasdasd",
-                      bot_start_in_group("username", "aasdasd", nullptr));
-  parse_internal_link("TG://resolve?domain=username&startgroup=", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("TG://test@resolve?domain=username&startgroup=", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username&startgroup=", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username&startgroup=", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username&startgroup=", nullptr);
-  parse_internal_link("tg:resolve?domain=&startgroup=", unknown_deep_link("tg://resolve?domain=&startgroup="));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&startgroup=%30", bot_start_in_group("telegram", "0", nullptr));
-
-  parse_internal_link("tg:resolve?domain=username&startgroup", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("tg:resolve?domain=username&startgroup&admin=asdas", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("tg:resolve?domain=username&startgroup&admin=post_messages",
-                      bot_start_in_group("username", "", nullptr));
-  parse_internal_link("tg:resolve?domain=username&startgroup=1&admin=delete_messages+anonymous",
-                      bot_start_in_group("username", "1",
-                                         chat_administrator_rights(true, false, false, false, true, false, false, false,
-                                                                   false, false, false, false, false, false, true)));
-  parse_internal_link(
-      "tg:resolve?domain=username&startgroup&admin=manage_chat+change_info+post_messages+edit_messages+delete_messages+"
-      "invite_users+restrict_members+pin_messages+manage_topics+promote_members+manage_video_chats+post_stories+edit_"
-      "stories+delete_stories+anonymous",
-      bot_start_in_group("username", "",
-                         chat_administrator_rights(true, true, false, false, true, true, true, true, true, true, true,
-                                                   true, true, true, true)));
-
-  parse_internal_link("tg:resolve?domain=username&startchannel", public_chat("username"));
-  parse_internal_link("tg:resolve?domain=username&startchannel&admin=", public_chat("username"));
-  parse_internal_link(
-      "tg:resolve?domain=username&startchannel&admin=post_messages",
-      bot_add_to_channel("username", chat_administrator_rights(true, false, true, false, false, false, true, false,
-                                                               false, false, false, false, false, false, false)));
-  parse_internal_link(
-      "tg:resolve?domain=username&startchannel&admin=manage_chat+change_info+post_messages+edit_messages+delete_"
-      "messages+invite_users+restrict_members+pin_messages+manage_topics+promote_members+manage_video_chats+anonymous",
-      bot_add_to_channel("username", chat_administrator_rights(true, true, true, true, true, true, true, false, false,
-                                                               true, true, false, false, false, false)));
-
-  parse_internal_link("t.me/username/0/a//s/as?startgroup=", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("t.me/username/aasdas/2?test=1&startgroup=#12312", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("t.me/username/0?startgroup=", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("t.me/username/-1?startgroup=asdasd", bot_start_in_group("username", "asdasd", nullptr));
-  parse_internal_link("t.me/username?startgroup=", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("t.me/username#startgroup=asdas", public_chat("username"));
-  parse_internal_link("t.me//username?startgroup=", nullptr);
-  parse_internal_link("https://telegram.dog/tele%63ram?startgroup=t%63st",
-                      bot_start_in_group("telecram", "tcst", nullptr));
-
-  parse_internal_link("t.me/username?startgroup", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("t.me/username?startgroup&admin=asdas", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("t.me/username?startgroup&admin=post_messages", bot_start_in_group("username", "", nullptr));
-  parse_internal_link("t.me/username?startgroup=1&admin=delete_messages+anonymous",
-                      bot_start_in_group("username", "1",
-                                         chat_administrator_rights(true, false, false, false, true, false, false, false,
-                                                                   false, false, false, false, false, false, true)));
-  parse_internal_link(
-      "t.me/"
-      "username?startgroup&admin=manage_chat+change_info+post_messages+edit_messages+delete_messages+invite_users+"
-      "restrict_members+pin_messages+manage_topics+promote_members+manage_video_chats+post_stories+edit_stories+delete_"
-      "stories+anonymous",
-      bot_start_in_group("username", "",
-                         chat_administrator_rights(true, true, false, false, true, true, true, true, true, true, true,
-                                                   true, true, true, true)));
-
-  parse_internal_link("t.me/username?startchannel", public_chat("username"));
-  parse_internal_link("t.me/username?startchannel&admin=", public_chat("username"));
-  parse_internal_link(
-      "t.me/username?startchannel&admin=post_messages",
-      bot_add_to_channel("username", chat_administrator_rights(true, false, true, false, false, false, true, false,
-                                                               false, false, false, false, false, false, false)));
-  parse_internal_link(
-      "t.me/"
-      "username?startchannel&admin=manage_chat+change_info+post_messages+edit_messages+delete_messages+invite_users+"
-      "restrict_members+pin_messages+manage_topics+promote_members+manage_video_chats+post_stories+edit_stories+delete_"
-      "stories+anonymous",
-      bot_add_to_channel("username", chat_administrator_rights(true, true, true, true, true, true, true, false, false,
-                                                               true, true, true, true, true, false)));
-}
-
-TEST(Link, parse_internal_link_part4) {
-  parse_internal_link("tg:resolve?domain=username&game=aasdasd", game("username", "aasdasd"));
-  parse_internal_link("TG://resolve?domain=username&game=", public_chat("username"));
-  parse_internal_link("TG://test@resolve?domain=username&game=asd", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username&game=asd", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username&game=asd", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username&game=asd", nullptr);
-  parse_internal_link("tg:resolve?domain=&game=asd", unknown_deep_link("tg://resolve?domain=&game=asd"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&game=%30", public_chat("telegram"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&game=%30ab", public_chat("telegram"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&game=ab%30", game("telegram", "ab0"));
-
-  parse_internal_link("t.me/username/0/a//s/as?game=asd", game("username", "asd"));
-  parse_internal_link("t.me/username/aasdas/2?test=1&game=asd#12312", game("username", "asd"));
-  parse_internal_link("t.me/username/0?game=asd", game("username", "asd"));
-  parse_internal_link("t.me/username/-1?game=asdasd", game("username", "asdasd"));
-  parse_internal_link("t.me/username?game=asd", game("username", "asd"));
-  parse_internal_link("t.me/username?game=", public_chat("username"));
-  parse_internal_link("t.me/username#game=asdas", public_chat("username"));
-  parse_internal_link("t.me//username?game=asd", nullptr);
-  parse_internal_link("https://telegram.dog/tele%63ram?game=t%63st", game("telecram", "tcst"));
-
-  parse_internal_link("tg:resolve?domain=username&story=123", story("username", 123));
-  parse_internal_link("TG://resolve?domain=username&story=", public_chat("username"));
-  parse_internal_link("TG://resolve?domain=username&story=0", public_chat("username"));
-  parse_internal_link("TG://resolve?domain=username&story=-1", public_chat("username"));
-  parse_internal_link("TG://test@resolve?domain=username&story=1", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username&story=1", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username&story=1", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username&story=1", nullptr);
-  parse_internal_link("tg:resolve?domain=&story=1", unknown_deep_link("tg://resolve?domain=&story=1"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&story=%30", public_chat("telegram"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&story=%31", story("telegram", 1));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&story=%31ab", public_chat("telegram"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&story=%31%39", story("telegram", 19));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&story=2222222222", public_chat("telegram"));
-
-  parse_internal_link("t.me/username/s/1234", story("username", 1234));
-  parse_internal_link("t.me/username/s/3?qwe=12312#12312", story("username", 3));
-  parse_internal_link("t.me/username/s/1", story("username", 1));
-  parse_internal_link("t.me/username/s/2", story("username", 2));
-  parse_internal_link("t.me/username/s/5", story("username", 5));
-  parse_internal_link("t.me/username/s/", public_chat("username"));
-  parse_internal_link("t.me/username#/s/123", public_chat("username"));
-  parse_internal_link("t.me/username?story=123", public_chat("username"));
-  parse_internal_link("https://telegram.dog/tele%63ram/s/%31%39", story("telecram", 19));
-
-  parse_internal_link("t.me/h", public_chat("h"));
-  parse_internal_link("t.me/h/hh", public_chat("h"));
-  parse_internal_link("t.me/i", nullptr);
-  parse_internal_link("t.me/i/ii", nullptr);
-  parse_internal_link("t.me/j", public_chat("j"));
-  parse_internal_link("t.me/j/jj", public_chat("j"));
-
-  parse_internal_link("tg:resolve?domain=username&appname=aasdasd&startapp=123asd",
-                      web_app("username", "aasdasd", "123asd", false, false));
-  parse_internal_link("TG://resolve?domain=username&appname=&startapp=123asd", public_chat("username"));
-  parse_internal_link("TG://test@resolve?domain=username&appname=asd", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username&appname=asd", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username&appname=asd", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username&appname=asd", nullptr);
-  parse_internal_link("tg:resolve?domain=&appname=asd", unknown_deep_link("tg://resolve?domain=&appname=asd"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&appname=%41&startapp=", public_chat("telegram"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&appname=%41b&startapp=", public_chat("telegram"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&appname=%41bc&startapp=",
-                      web_app("telegram", "Abc", "", false, false));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&appname=%41bc&startapp=&mode=compact",
-                      web_app("telegram", "Abc", "", true, false));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&appname=%41bc&startapp=&mode=fullscreen",
-                      web_app("telegram", "Abc", "", false, true));
-
-  parse_internal_link("t.me/username/0/a//s/as?appname=asd", public_chat("username"));
-  parse_internal_link("t.me/username/aasdas/2?test=1&appname=asd#12312", public_chat("username"));
-  parse_internal_link("t.me/username/0?appname=asd", public_chat("username"));
-  parse_internal_link("t.me/username/-1?appname=asdasd", public_chat("username"));
-  parse_internal_link("t.me/username?appname=asd", public_chat("username"));
-  parse_internal_link("t.me/username?appname=", public_chat("username"));
-  parse_internal_link("t.me/username#appname=asdas", public_chat("username"));
-  parse_internal_link("t.me//username?appname=asd", nullptr);
-  parse_internal_link("https://telegram.dog/tele%63ram?appname=t%63st", public_chat("telecram"));
-  parse_internal_link("t.me/username/def/asd", public_chat("username"));
-  parse_internal_link("t.me/username/asd#12312&startapp=qwe", web_app("username", "asd", "", false, false));
-  parse_internal_link("t.me/username/asd?12312&startapp=qwe&mode=compac",
-                      web_app("username", "asd", "qwe", false, false));
-  parse_internal_link("t.me/username/asd?12312&startapp=qwe&mode=compact",
-                      web_app("username", "asd", "qwe", true, false));
-  parse_internal_link("t.me/username/asd?12312&startapp=qwe&mode=fullscreen",
-                      web_app("username", "asd", "qwe", false, true));
-  parse_internal_link("t.me/username/asdasd?startapp=0", web_app("username", "asdasd", "0", false, false));
-  parse_internal_link("t.me/username/asd", web_app("username", "asd", "", false, false));
-  parse_internal_link("t.me/username/", public_chat("username"));
-  parse_internal_link("https://telegram.dog/tele%63ram/t%63st", web_app("telecram", "tcst", "", false, false));
-  parse_internal_link("https://telegram.dog/tele%63ram/t%63st?mode=compact",
-                      web_app("telecram", "tcst", "", true, false));
-  parse_internal_link("https://telegram.dog/tele%63ram/t%63st?mode=fullscreen",
-                      web_app("telecram", "tcst", "", false, true));
-
-  parse_internal_link("tg:resolve?domain=username&startapp=aasdasd", main_web_app("username", "aasdasd", false, false));
-  parse_internal_link("TG://resolve?domain=username&startapp=&startapp=123asd",
-                      main_web_app("username", "", false, false));
-  parse_internal_link("TG://test@resolve?domain=username&startapp=asd", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username&startapp=asd", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username&startapp=asd", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username&startapp=asd", nullptr);
-  parse_internal_link("tg:resolve?domain=&startapp=asd", unknown_deep_link("tg://resolve?domain=&startapp=asd"));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&startapp=%41", main_web_app("telegram", "A", false, false));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&startapp=%41b", main_web_app("telegram", "Ab", false, false));
-  parse_internal_link("tg:resolve?domain=telegram&&&&&&&startapp=%41bc", main_web_app("telegram", "Abc", false, false));
-  parse_internal_link("tg:resolve?domain=telegram&&mode=compact&&&&&&startapp=%41bc",
-                      main_web_app("telegram", "Abc", true, false));
-  parse_internal_link("tg:resolve?domain=telegram&&mode=fullscreen&&&&&&startapp=%41bc",
-                      main_web_app("telegram", "Abc", false, true));
-
-  parse_internal_link("t.me/username?startapp=qwe", main_web_app("username", "qwe", false, false));
-  parse_internal_link("t.me/username?12312&startapp=qwe", main_web_app("username", "qwe", false, false));
-  parse_internal_link("t.me/username?startapp=0", main_web_app("username", "0", false, false));
-  parse_internal_link("https://telegram.dog/tele%63ram?startapp=t%63st",
-                      main_web_app("telecram", "tcst", false, false));
-  parse_internal_link("https://telegram.dog/tele%63ram?startapp=t%63st&mode=%63ompact",
-                      main_web_app("telecram", "tcst", true, false));
-  parse_internal_link("https://telegram.dog/tele%63ram?startapp=t%63st&mode=%66ullscreen",
-                      main_web_app("telecram", "tcst", false, true));
-  parse_internal_link("https://telegram.dog?startapp=t%63st", nullptr);
-
-  parse_internal_link("tg:resolve?domain=username&Game=asd", public_chat("username"));
-  parse_internal_link("TG://test@resolve?domain=username", nullptr);
-  parse_internal_link("tg:resolve:80?domain=username", nullptr);
-  parse_internal_link("tg:http://resolve?domain=username", nullptr);
-  parse_internal_link("tg:https://resolve?domain=username", nullptr);
-  parse_internal_link("tg:resolve?domain=", unknown_deep_link("tg://resolve?domain="));
-  parse_internal_link("tg:resolve?&&&&&&&domain=telegram", public_chat("telegram"));
-
-  parse_internal_link("t.me/a", public_chat("a"));
-  parse_internal_link("t.me/abcdefghijklmnopqrstuvwxyz123456", public_chat("abcdefghijklmnopqrstuvwxyz123456"));
-  parse_internal_link("t.me/abcdefghijklmnopqrstuvwxyz1234567", nullptr);
-  parse_internal_link("t.me/abcdefghijklmnop-qrstuvwxyz", nullptr);
-  parse_internal_link("t.me/abcdefghijklmnop~qrstuvwxyz", nullptr);
-  parse_internal_link("t.me/_asdf", nullptr);
-  parse_internal_link("t.me/0asdf", nullptr);
-  parse_internal_link("t.me/9asdf", nullptr);
-  parse_internal_link("t.me/Aasdf", public_chat("Aasdf"));
-  parse_internal_link("t.me/asdf_", nullptr);
-  parse_internal_link("t.me/asdf0", public_chat("asdf0"));
-  parse_internal_link("t.me/asd__fg", nullptr);
-  parse_internal_link("t.me/username/0/a//s/as?gam=asd", public_chat("username"));
-  parse_internal_link("t.me/username/aasdas/2?test=1", public_chat("username"));
-  parse_internal_link("t.me/username/0", public_chat("username"));
-  parse_internal_link("t.me//username", nullptr);
-  parse_internal_link("https://telegram.dog/tele%63ram", public_chat("telecram"));
-
-  parse_internal_link(
-      "tg://"
-      "resolve?domain=telegrampassport&bot_id=543260180&scope=%7B%22v%22%3A1%2C%22d%22%3A%5B%7B%22%22%5D%7D%5D%7D&"
-      "public_key=BEGIN%20PUBLIC%20KEY%0A&nonce=b8ee&callback_url=https%3A%2F%2Fcore.telegram.org%2Fpassport%2Fexample%"
-      "3Fpassport_ssid%3Db8ee&payload=nonce",
-      passport_data_request(543260180, "{\"v\":1,\"d\":[{\"\"]}]}", "BEGIN PUBLIC KEY\n", "b8ee",
-                            "https://core.telegram.org/passport/example?passport_ssid=b8ee"));
-  parse_internal_link("tg://resolve?domain=telegrampassport&bot_id=12345&public_key=key&scope=asd&payload=nonce",
-                      passport_data_request(12345, "asd", "key", "nonce", ""));
-  parse_internal_link("tg://passport?bot_id=12345&public_key=key&scope=asd&payload=nonce",
-                      passport_data_request(12345, "asd", "key", "nonce", ""));
-  parse_internal_link("tg://passport?bot_id=0&public_key=key&scope=asd&payload=nonce",
-                      unknown_deep_link("tg://passport?bot_id=0&public_key=key&scope=asd&payload=nonce"));
-  parse_internal_link("tg://passport?bot_id=-1&public_key=key&scope=asd&payload=nonce",
-                      unknown_deep_link("tg://passport?bot_id=-1&public_key=key&scope=asd&payload=nonce"));
-  parse_internal_link("tg://passport?bot_id=12345&public_key=&scope=asd&payload=nonce",
-                      unknown_deep_link("tg://passport?bot_id=12345&public_key=&scope=asd&payload=nonce"));
-  parse_internal_link("tg://passport?bot_id=12345&public_key=key&scope=&payload=nonce",
-                      unknown_deep_link("tg://passport?bot_id=12345&public_key=key&scope=&payload=nonce"));
-  parse_internal_link("tg://passport?bot_id=12345&public_key=key&scope=asd&payload=",
-                      unknown_deep_link("tg://passport?bot_id=12345&public_key=key&scope=asd&payload="));
-  parse_internal_link("t.me/telegrampassport?bot_id=12345&public_key=key&scope=asd&payload=nonce",
-                      public_chat("telegrampassport"));
-
-  parse_internal_link("tg:premium_offer?ref=abcdef", premium_features("abcdef"));
-  parse_internal_link("tg:premium_offer?ref=abc%30ef", premium_features("abc0ef"));
-  parse_internal_link("tg://premium_offer?ref=", premium_features(""));
-
-  parse_internal_link("tg:premium_multigift?ref=abcdef", premium_gift("abcdef"));
-  parse_internal_link("tg:premium_multigift?ref=abc%30ef", premium_gift("abc0ef"));
-  parse_internal_link("tg://premium_multigift?ref=", premium_gift(""));
-
-  parse_internal_link("tg://settings", settings());
-  parse_internal_link("tg://setting", unknown_deep_link("tg://setting"));
-  parse_internal_link("tg://settings?asdsa?D?SADasD?asD", settings());
-  parse_internal_link("tg://settings#test", settings());
-  parse_internal_link("tg://settings/#test", settings());
-  parse_internal_link("tg://settings/aadsa#test", settings());
-  parse_internal_link("tg://settings/theme#test", settings());
-  parse_internal_link("tg://settings/themes#test", theme_settings());
-  parse_internal_link("tg://settings/themesa#test", settings());
-  parse_internal_link("tg://settings/themes/?as#rad", theme_settings());
-  parse_internal_link("tg://settings/themes/a", settings());
-  parse_internal_link("tg://settings/asdsathemesasdas/devices", settings());
-  parse_internal_link("tg://settings/auto_delete", default_message_auto_delete_timer_settings());
-  parse_internal_link("tg://settings/devices", active_sessions());
-  parse_internal_link("tg://settings/change_number", change_phone_number());
-  parse_internal_link("tg://settings/edit_profile", edit_profile_settings());
-  parse_internal_link("tg://settings/folders", chat_folder_settings());
-  parse_internal_link("tg://settings/filters", settings());
-  parse_internal_link("tg://settings/language", language_settings());
-  parse_internal_link("tg://settings/privacy", privacy_and_security_settings());
-
-  parse_internal_link("tg://stars_topup", unknown_deep_link("tg://stars_topup"));
-  parse_internal_link("tg://stars_topup?balance=", unknown_deep_link("tg://stars_topup?balance="));
-  parse_internal_link("tg://stars_topup?balance=test", buy_stars(1, ""));
-  parse_internal_link("tg://stars_topup?balance=10&purpose=%30test", buy_stars(10, "0test"));
-  parse_internal_link("tg://stars_topup?balance=100000000000&purpose=subs", buy_stars(100000000000, "subs"));
-
-  parse_internal_link("username.t.me////0/a//s/as?start=", bot_start("username", ""));
-  parse_internal_link("username.t.me?start=as", bot_start("username", "as"));
-  parse_internal_link("username.t.me", public_chat("username"));
-  parse_internal_link("aAAb.t.me/12345?single", message("tg://resolve?domain=aaab&post=12345&single"));
-  parse_internal_link("telegram.t.me/195", message("tg://resolve?domain=telegram&post=195"));
-  parse_internal_link("shares.t.me", public_chat("shares"));
-
-  parse_internal_link("c.t.me/12345?single", nullptr);
-  parse_internal_link("aaa.t.me/12345?single", nullptr);
-  parse_internal_link("aaa_.t.me/12345?single", nullptr);
-  parse_internal_link("0aaa.t.me/12345?single", nullptr);
-  parse_internal_link("_aaa.t.me/12345?single", nullptr);
-  parse_internal_link("a.t.me", nullptr);
-  parse_internal_link("b.t.me", nullptr);
-  parse_internal_link("k.t.me", nullptr);
-  parse_internal_link("z.t.me", nullptr);
-  parse_internal_link("web.t.me", nullptr);
-  parse_internal_link("addemoji.t.me", nullptr);
-  parse_internal_link("addlist.t.me", nullptr);
-  parse_internal_link("addstickers.t.me", nullptr);
-  parse_internal_link("addtheme.t.me", nullptr);
-  parse_internal_link("auth.t.me", nullptr);
-  parse_internal_link("boost.t.me", nullptr);
-  parse_internal_link("confirmphone.t.me", nullptr);
-  parse_internal_link("contact.t.me", nullptr);
-  parse_internal_link("giftcode.t.me", nullptr);
-  parse_internal_link("invoice.t.me", nullptr);
-  parse_internal_link("joinchat.t.me", nullptr);
-  parse_internal_link("login.t.me", nullptr);
-  parse_internal_link("m.t.me", nullptr);
-  parse_internal_link("nft.t.me", nullptr);
-  parse_internal_link("proxy.t.me", nullptr);
-  parse_internal_link("setlanguage.t.me", nullptr);
-  parse_internal_link("share.t.me", nullptr);
-  parse_internal_link("socks.t.me", nullptr);
-
-  parse_internal_link("www.telegra.ph/", nullptr);
-  parse_internal_link("www.telegrA.ph/#", nullptr);
-  parse_internal_link("www.telegrA.ph/?", instant_view("https://telegra.ph/?", "www.telegrA.ph/?"));
-  parse_internal_link("http://te.leGra.ph/?", instant_view("https://telegra.ph/?", "http://te.leGra.ph/?"));
-  parse_internal_link("https://grAph.org/12345", instant_view("https://telegra.ph/12345", "https://grAph.org/12345"));
-}
diff --git a/third-party/td/td/test/main.cpp b/third-party/td/td/test/main.cpp
deleted file mode 100644
index f6f6a090cf..0000000000
--- a/third-party/td/td/test/main.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/ExitGuard.h"
-#include "td/utils/logging.h"
-#include "td/utils/OptionParser.h"
-#include "td/utils/port/detail/ThreadIdGuard.h"
-#include "td/utils/port/stacktrace.h"
-#include "td/utils/Slice.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-
-#if TD_EMSCRIPTEN
-#include <emscripten.h>
-#endif
-
-int main(int argc, char **argv) {
-  SET_VERBOSITY_LEVEL(VERBOSITY_NAME(FATAL));
-  td::ExitGuard exit_guard;
-  td::detail::ThreadIdGuard thread_id_guard;
-  td::Stacktrace::init();
-  td::init_openssl_threads();
-
-  td::TestsRunner &runner = td::TestsRunner::get_default();
-
-  int default_verbosity_level = 1;
-  td::OptionParser options;
-  options.add_option('f', "filter", "run only specified tests",
-                     [&](td::Slice filter) { runner.add_substr_filter(filter.str()); });
-  options.add_option('o', "offset", "run tests from the specified test",
-                     [&](td::Slice offset) { runner.set_offset(offset.str()); });
-  options.add_option('s', "stress", "run tests infinitely", [&] { runner.set_stress_flag(true); });
-  options.add_checked_option('v', "verbosity", "log verbosity level",
-                             td::OptionParser::parse_integer(default_verbosity_level));
-  options.add_check([&] {
-    if (default_verbosity_level < 0) {
-      return td::Status::Error("Wrong verbosity level specified");
-    }
-    return td::Status::OK();
-  });
-  auto r_non_options = options.run(argc, argv, 0);
-  if (r_non_options.is_error()) {
-    LOG(PLAIN) << argv[0] << ": " << r_non_options.error().message();
-    LOG(PLAIN) << options;
-    return 1;
-  }
-  SET_VERBOSITY_LEVEL(default_verbosity_level);
-
-#if TD_EMSCRIPTEN
-  emscripten_set_main_loop(
-      [] {
-        td::TestsRunner &default_runner = td::TestsRunner::get_default();
-        if (!default_runner.run_all_step()) {
-          emscripten_cancel_main_loop();
-        }
-      },
-      10, 0);
-#else
-  runner.run_all();
-#endif
-}
diff --git a/third-party/td/td/test/message_entities.cpp b/third-party/td/td/test/message_entities.cpp
deleted file mode 100644
index 2921ac9d77..0000000000
--- a/third-party/td/td/test/message_entities.cpp
+++ /dev/null
@@ -1,2030 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/CustomEmojiId.h"
-#include "td/telegram/MessageEntity.h"
-#include "td/telegram/UserId.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tests.h"
-#include "td/utils/utf8.h"
-
-#include <algorithm>
-#include <utility>
-
-static void check_mention(const td::string &str, const td::vector<td::string> &expected) {
-  auto result_slice = td::find_mentions(str);
-  td::vector<td::string> result;
-  for (auto &it : result_slice) {
-    result.push_back(it.str());
-  }
-  if (result != expected) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result) << td::tag("expected", expected);
-  }
-}
-
-TEST(MessageEntities, mention) {
-  check_mention("@mention", {"@mention"});
-  check_mention("@mention ", {"@mention"});
-  check_mention(" @mention", {"@mention"});
-  check_mention(" @mention ", {"@mention"});
-  check_mention("@abc @xyz @abc @xyz @xxx@yyy @ttt", {});
-  check_mention("@abcde @xyzxy @abcde @xyzxy @xxxxx@yyyyy @ttttt",
-                {"@abcde", "@xyzxy", "@abcde", "@xyzxy", "@xxxxx", "@ttttt"});
-  check_mention("no@mention", {});
-  check_mention("@n", {});
-  check_mention("@abcdefghijklmnopqrstuvwxyz123456", {"@abcdefghijklmnopqrstuvwxyz123456"});
-  check_mention("@abcdefghijklmnopqrstuvwxyz1234567", {});
-  check_mention("нет@mention", {});
-  check_mention(
-      "@ya @gif @wiki @vid @bing @pic @bold @imdb @ImDb @coub @like @vote @giff @cap ya cap @y @yar @bingg @bin",
-      {"@gif", "@wiki", "@vid", "@bing", "@pic", "@bold", "@imdb", "@ImDb", "@coub", "@like", "@vote", "@giff",
-       "@bingg"});
-}
-
-static void check_bot_command(const td::string &str, const td::vector<td::string> &expected) {
-  auto result_slice = td::find_bot_commands(str);
-  td::vector<td::string> result;
-  for (auto &it : result_slice) {
-    result.push_back(it.str());
-  }
-  if (result != expected) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result) << td::tag("expected", expected);
-  }
-}
-
-TEST(MessageEntities, bot_command) {
-  // 1..64@3..32
-  check_bot_command("/abc", {"/abc"});
-  check_bot_command(" /abc", {"/abc"});
-  check_bot_command("/abc ", {"/abc"});
-  check_bot_command(" /abc ", {"/abc"});
-  check_bot_command("/a@abc", {"/a@abc"});
-  check_bot_command("/a@b", {});
-  check_bot_command("/@bfdsa", {});
-  check_bot_command("/test/", {});
-}
-
-static void check_hashtag(const td::string &str, const td::vector<td::string> &expected) {
-  auto result_slice = td::find_hashtags(str);
-  td::vector<td::string> result;
-  for (auto &it : result_slice) {
-    result.push_back(it.str());
-  }
-  if (result != expected) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result) << td::tag("expected", expected);
-  }
-}
-
-TEST(MessageEntities, hashtag) {
-  check_hashtag("", {});
-  check_hashtag("#", {});
-  check_hashtag("##", {});
-  check_hashtag("###", {});
-  check_hashtag("#a", {"#a"});
-  check_hashtag(" #a", {"#a"});
-  check_hashtag("#a ", {"#a"});
-  check_hashtag(" #я ", {"#я"});
-  check_hashtag(" я#a ", {});
-  check_hashtag(" #a# ", {});
-  check_hashtag(" #123 ", {});
-  check_hashtag(" #123a ", {"#123a"});
-  check_hashtag(" #a123 ", {"#a123"});
-  check_hashtag(" #123a# ", {});
-  check_hashtag(" #" + td::string(300, '1'), {});
-  check_hashtag(" #" + td::string(256, '1'), {});
-  check_hashtag(" #" + td::string(256, '1') + "a ", {});
-  check_hashtag(" #" + td::string(255, '1') + "a", {"#" + td::string(255, '1') + "a"});
-  check_hashtag(" #" + td::string(255, '1') + "Я", {"#" + td::string(255, '1') + "Я"});
-  check_hashtag(" #" + td::string(255, '1') + "a" + td::string(255, 'b') + "# ", {});
-  check_hashtag("#a#b #c #d", {"#c", "#d"});
-  check_hashtag("#test", {"#test"});
-  check_hashtag("#test@", {"#test"});
-  check_hashtag("#test@a", {"#test"});
-  check_hashtag("#test@ab", {"#test"});
-  check_hashtag("#test@abc", {"#test@abc"});
-  check_hashtag("#test@a-c", {"#test"});
-  check_hashtag("#test@abcdefghijabcdefghijabcdefghijab", {"#test@abcdefghijabcdefghijabcdefghijab"});
-  check_hashtag("#test@abcdefghijabcdefghijabcdefghijabc", {"#test@abcdefghijabcdefghijabcdefghijab"});
-  check_hashtag("#te·st", {"#te·st"});
-  check_hashtag(u8"\U0001F604\U0001F604\U0001F604\U0001F604 \U0001F604\U0001F604\U0001F604#" + td::string(200, '1') +
-                    "ООО" + td::string(200, '2'),
-                {"#" + td::string(200, '1') + "ООО" + td::string(53, '2')});
-  check_hashtag(u8"#a\u2122", {"#a"});
-  check_hashtag("#a൹", {"#a"});
-  check_hashtag("#aඁං෴ก฿", {"#aඁං෴ก"});
-  check_hashtag(
-      "#a12345678901234561234567890123456123456789012345612345678901234561234567890123456123456789012345612345678901234"
-      "5612345678901234561234567890123456123456789012345612345678901234561234567890123456123456789012345612345678901234"
-      "5612345678901234561234567890123456",
-      {"#a1234567890123456123456789012345612345678901234561234567890123456123456789012345612345678901234561234567890123"
-       "456123456789012345612345678901234561234567890123456123456789012345612345678901234561234567890123456123456789012"
-       "34561234567890123456123456789012345"});
-}
-
-static void check_cashtag(const td::string &str, const td::vector<td::string> &expected) {
-  auto result_slice = td::find_cashtags(str);
-  td::vector<td::string> result;
-  for (auto &it : result_slice) {
-    result.push_back(it.str());
-  }
-  if (result != expected) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result) << td::tag("expected", expected);
-  }
-}
-
-TEST(MessageEntities, cashtag) {
-  check_cashtag("", {});
-  check_cashtag("$", {});
-  check_cashtag("$$", {});
-  check_cashtag("$$$", {});
-  check_cashtag("$a", {});
-  check_cashtag(" $a", {});
-  check_cashtag("$a ", {});
-  check_cashtag(" $я ", {});
-  check_cashtag("$ab", {});
-  check_cashtag("$abc", {});
-  check_cashtag("$", {});
-  check_cashtag("$A", {"$A"});
-  check_cashtag("$AB", {"$AB"});
-  check_cashtag("$ABС", {});
-  check_cashtag("$АBC", {});
-  check_cashtag("$АВС", {});
-  check_cashtag("$ABC", {"$ABC"});
-  check_cashtag("$ABCD", {"$ABCD"});
-  check_cashtag("$ABCDE", {"$ABCDE"});
-  check_cashtag("$ABCDEF", {"$ABCDEF"});
-  check_cashtag("$ABCDEFG", {"$ABCDEFG"});
-  check_cashtag("$ABCDEFGH", {"$ABCDEFGH"});
-  check_cashtag("$ABCDEFGHJ", {});
-  check_cashtag("$ABCDEFGH1", {});
-  check_cashtag(" $XYZ", {"$XYZ"});
-  check_cashtag("$XYZ ", {"$XYZ"});
-  check_cashtag(" $XYZ ", {"$XYZ"});
-  check_cashtag(" $$XYZ ", {});
-  check_cashtag(" $XYZ$ ", {});
-  check_cashtag(" $ABC1 ", {});
-  check_cashtag(" $1ABC ", {});
-  check_cashtag(" 1$ABC ", {});
-  check_cashtag(" А$ABC ", {});
-  check_cashtag("$ABC$DEF $GHI $KLM", {"$GHI", "$KLM"});
-  check_cashtag("$TEST", {"$TEST"});
-  check_cashtag("$TEST@", {"$TEST"});
-  check_cashtag("$TEST@a", {"$TEST"});
-  check_cashtag("$TEST@ab", {"$TEST"});
-  check_cashtag("$TEST@abc", {"$TEST@abc"});
-  check_cashtag("$TEST@a-c", {"$TEST"});
-  check_cashtag("$TEST@abcdefghijabcdefghijabcdefghijab", {"$TEST@abcdefghijabcdefghijabcdefghijab"});
-  check_cashtag("$TEST@abcdefghijabcdefghijabcdefghijabc", {"$TEST"});
-  check_cashtag("$1INC", {});
-  check_cashtag("$1INCH", {"$1INCH"});
-  check_cashtag("...$1INCH...", {"$1INCH"});
-  check_cashtag("$1inch", {});
-  check_cashtag("$1INCHA", {});
-  check_cashtag("$1INCHА", {});
-  check_cashtag(u8"$ABC\u2122", {"$ABC"});
-  check_cashtag(u8"\u2122$ABC", {"$ABC"});
-  check_cashtag(u8"\u2122$ABC\u2122", {"$ABC"});
-  check_cashtag("$ABC൹", {"$ABC"});
-  check_cashtag("$ABCඁ", {});
-  check_cashtag("$ABCං", {});
-  check_cashtag("$ABC෴", {});
-  check_cashtag("$ABCก", {});
-  check_cashtag("$ABC฿", {"$ABC"});
-}
-
-static void check_media_timestamp(const td::string &str, const td::vector<std::pair<td::string, td::int32>> &expected) {
-  auto result = td::transform(td::find_media_timestamps(str),
-                              [](auto &&entity) { return std::make_pair(entity.first.str(), entity.second); });
-  if (result != expected) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result) << td::tag("expected", expected);
-  }
-}
-
-TEST(MessageEntities, media_timestamp) {
-  check_media_timestamp("", {});
-  check_media_timestamp(":", {});
-  check_media_timestamp(":1", {});
-  check_media_timestamp("a:1", {});
-  check_media_timestamp("01", {});
-  check_media_timestamp("01:", {});
-  check_media_timestamp("01::", {});
-  check_media_timestamp("01::", {});
-  check_media_timestamp("a1:1a", {});
-  check_media_timestamp("a1::01a", {});
-  check_media_timestamp("2001:db8::8a2e:f70:13a4", {});
-  check_media_timestamp("0:00", {{"0:00", 0}});
-  check_media_timestamp("+0:00", {{"0:00", 0}});
-  check_media_timestamp("0:00+", {{"0:00", 0}});
-  check_media_timestamp("a0:00", {});
-  check_media_timestamp("0:00a", {});
-  check_media_timestamp("б0:00", {});
-  check_media_timestamp("0:00б", {});
-  check_media_timestamp("_0:00", {});
-  check_media_timestamp("0:00_", {});
-  check_media_timestamp("00:00:00:00", {});
-  check_media_timestamp("1:1:01 1:1:1", {{"1:1:01", 3661}});
-  check_media_timestamp("0:0:00 00:00 000:00 0000:00 00000:00 00:00:00 000:00:00 00:000:00 00:00:000",
-                        {{"0:0:00", 0}, {"00:00", 0}, {"000:00", 0}, {"0000:00", 0}, {"00:00:00", 0}});
-  check_media_timestamp("00:0:00 0:00:00 00::00 :00:00 00:00: 00:00:0 00:00:", {{"00:0:00", 0}, {"0:00:00", 0}});
-  check_media_timestamp("1:1:59 1:1:-1 1:1:60", {{"1:1:59", 3719}});
-  check_media_timestamp("1:59:00 1:-1:00 1:60:00", {{"1:59:00", 7140}, {"1:00", 60}});
-  check_media_timestamp("59:59 60:00", {{"59:59", 3599}, {"60:00", 3600}});
-  check_media_timestamp("9999:59 99:59:59 99:60:59", {{"9999:59", 599999}, {"99:59:59", 360000 - 1}});
-  check_media_timestamp("2001:db8::8a2e:f70:13a4", {});
-}
-
-static void check_bank_card_number(const td::string &str, const td::vector<td::string> &expected) {
-  auto result_slice = td::find_bank_card_numbers(str);
-  td::vector<td::string> result;
-  for (auto &it : result_slice) {
-    result.push_back(it.str());
-  }
-  if (result != expected) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result) << td::tag("expected", expected);
-  }
-}
-
-TEST(MessageEntities, bank_card_number) {
-  check_bank_card_number("", {});
-  check_bank_card_number("123456789015", {});
-  check_bank_card_number("1234567890120", {});
-  check_bank_card_number("1234567890121", {});
-  check_bank_card_number("1234567890122", {});
-  check_bank_card_number("1234567890123", {});
-  check_bank_card_number("1234567890124", {});
-  check_bank_card_number("1234567890125", {});
-  check_bank_card_number("1234567890126", {});
-  check_bank_card_number("1234567890127", {});
-  check_bank_card_number("1234567890128", {"1234567890128"});
-  check_bank_card_number("1234567890129", {});
-  check_bank_card_number("12345678901500", {"12345678901500"});
-  check_bank_card_number("123456789012800", {"123456789012800"});
-  check_bank_card_number("1234567890151800", {"1234567890151800"});
-  check_bank_card_number("12345678901280000", {"12345678901280000"});
-  check_bank_card_number("123456789015009100", {"123456789015009100"});
-  check_bank_card_number("1234567890128000000", {"1234567890128000000"});
-  check_bank_card_number("12345678901500910000", {});
-  check_bank_card_number(" - - - - 1 - -- 2 - - -- 34 - - - 56- - 7890150000  - - - -", {});
-  check_bank_card_number(" - - - - 1 - -- 234 - - 56- - 7890150000  - - - -", {"1 - -- 234 - - 56- - 7890150000"});
-  check_bank_card_number("4916-3385-0608-2832; 5280 9342 8317 1080 ;345936346788903",
-                         {"4916-3385-0608-2832", "5280 9342 8317 1080", "345936346788903"});
-  check_bank_card_number("4556728228023269, 4916141675244747020, 49161416752447470, 4556728228023269",
-                         {"4556728228023269", "4916141675244747020", "4556728228023269"});
-  check_bank_card_number("a1234567890128", {});
-  check_bank_card_number("1234567890128a", {});
-  check_bank_card_number("1234567890128а", {});
-  check_bank_card_number("а1234567890128", {});
-  check_bank_card_number("1234567890128_", {});
-  check_bank_card_number("_1234567890128", {});
-  check_bank_card_number("1234567890128/", {"1234567890128"});
-  check_bank_card_number("\"1234567890128", {"1234567890128"});
-  check_bank_card_number("+1234567890128", {});
-}
-
-static void check_tg_url(const td::string &str, const td::vector<td::string> &expected) {
-  auto result_slice = td::find_tg_urls(str);
-  td::vector<td::string> result;
-  for (auto &it : result_slice) {
-    result.push_back(it.str());
-  }
-  if (result != expected) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result) << td::tag("expected", expected);
-  }
-}
-
-TEST(MessageEntities, tg_url) {
-  check_tg_url("", {});
-  check_tg_url("tg://", {});
-  check_tg_url("tg://a", {"tg://a"});
-  check_tg_url("a", {});
-  check_tg_url("stg://a", {"tg://a"});
-  check_tg_url("asd  asdas das ton:asd tg:test ton://resolve tg://resolve TON://_-RESOLVE_- TG://-_RESOLVE-_",
-               {"ton://resolve", "tg://resolve", "TON://_-RESOLVE_-", "TG://-_RESOLVE-_"});
-  check_tg_url("tg:test/", {});
-  check_tg_url("tg:/test/", {});
-  check_tg_url("tg://test/", {"tg://test/"});
-  check_tg_url("tg://test/?", {"tg://test/"});
-  check_tg_url("tg://test/#", {"tg://test/#"});
-  check_tg_url("tg://test?", {"tg://test"});
-  check_tg_url("tg://test#", {"tg://test"});
-  check_tg_url("tg://test/―asd―?asd=asd&asdas=―#――――", {"tg://test/―asd―?asd=asd&asdas=―#――――"});
-  check_tg_url("tg://test/?asd", {"tg://test/?asd"});
-  check_tg_url("tg://test/?.:;,('?!`.:;,('?!`", {"tg://test/"});
-  check_tg_url("tg://test/#asdf", {"tg://test/#asdf"});
-  check_tg_url("tg://test?asdf", {"tg://test?asdf"});
-  check_tg_url("tg://test#asdf", {"tg://test#asdf"});
-  check_tg_url("tg://test?as‖df", {"tg://test?as"});
-  check_tg_url("tg://test?sa<df", {"tg://test?sa"});
-  check_tg_url("tg://test?as>df", {"tg://test?as"});
-  check_tg_url("tg://test?as\"df", {"tg://test?as"});
-  check_tg_url("tg://test?as«df", {"tg://test?as"});
-  check_tg_url("tg://test?as»df", {"tg://test?as"});
-  check_tg_url("tg://test?as(df", {"tg://test?as(df"});
-  check_tg_url("tg://test?as)df", {"tg://test?as)df"});
-  check_tg_url("tg://test?as[df", {"tg://test?as[df"});
-  check_tg_url("tg://test?as]df", {"tg://test?as]df"});
-  check_tg_url("tg://test?as{df", {"tg://test?as{df"});
-  check_tg_url("tg://test?as'df", {"tg://test?as'df"});
-  check_tg_url("tg://test?as}df", {"tg://test?as}df"});
-  check_tg_url("tg://test?as$df", {"tg://test?as$df"});
-  check_tg_url("tg://test?as%df", {"tg://test?as%df"});
-  check_tg_url("tg://%30/sccct", {});
-  check_tg_url("tg://test:asd@google.com:80", {"tg://test"});
-  check_tg_url("tg://google.com", {"tg://google"});
-  check_tg_url("tg://google/.com", {"tg://google/.com"});
-  check_tg_url("tg://127.0.0.1", {"tg://127"});
-  check_tg_url("tg://б.а.н.а.на", {});
-}
-
-static void check_is_email_address(const td::string &str, bool expected) {
-  bool result = td::is_email_address(str);
-  LOG_IF(FATAL, result != expected) << "Expected " << expected << " as result of is_email_address(" << str << ")";
-}
-
-TEST(MessageEntities, is_email_address) {
-  check_is_email_address("telegram.org", false);
-  check_is_email_address("security@telegram.org", true);
-  check_is_email_address("security.telegram.org", false);
-  check_is_email_address("", false);
-  check_is_email_address("@", false);
-  check_is_email_address("A@a.a.a.ab", true);
-  check_is_email_address("A@a.ab", true);
-  check_is_email_address("Test@aa.aa.aa.aa", true);
-  check_is_email_address("Test@test.abd", true);
-  check_is_email_address("a@a.a.a.ab", true);
-  check_is_email_address("test@test.abd", true);
-  check_is_email_address("test@test.com", true);
-  check_is_email_address("test.abd", false);
-  check_is_email_address("a.ab", false);
-  check_is_email_address("a.bc@d.ef", true);
-
-  td::vector<td::string> bad_userdatas = {"",
-                                          "a.a.a.a.a.a.a.a.a.a.a.a",
-                                          "+.+.+.+.+.+",
-                                          "*.a.a",
-                                          "a.*.a",
-                                          "a.a.*",
-                                          "a.a.",
-                                          "a.a.abcdefghijklmnopqrstuvwxyz0123456789",
-                                          "a.abcdefghijklmnopqrstuvwxyz0.a",
-                                          "abcdefghijklmnopqrstuvwxyz0.a.a"};
-  td::vector<td::string> good_userdatas = {"a.a.a.a.a.a.a.a.a.a.a",
-                                           "a+a+a+a+a+a+a+a+a+a+a",
-                                           "+.+.+.+.+._",
-                                           "aozAQZ0-5-9_+-aozAQZ0-5-9_.aozAQZ0-5-9_.-._.+-",
-                                           "a.a.a",
-                                           "a.a.abcdefghijklmnopqrstuvwxyz012345678",
-                                           "a.abcdefghijklmnopqrstuvwxyz.a",
-                                           "a..a",
-                                           "abcdefghijklmnopqrstuvwxyz.a.a",
-                                           ".a.a"};
-
-  td::vector<td::string> bad_domains = {"",
-                                        ".",
-                                        "abc",
-                                        "localhost",
-                                        "a.a.a.a.a.a.a.ab",
-                                        ".......",
-                                        "a.a.a.a.a.a+ab",
-                                        "a+a.a.a.a.a.ab",
-                                        "a.a.a.a.a.a.a",
-                                        "a.a.a.a.a.a.abcdefghi",
-                                        "a.a.a.a.a.a.ab0yz",
-                                        "a.a.a.a.a.a.ab9yz",
-                                        "a.a.a.a.a.a.ab-yz",
-                                        "a.a.a.a.a.a.ab_yz",
-                                        "a.a.a.a.a.a.ab*yz",
-                                        ".ab",
-                                        ".a.ab",
-                                        "a..ab",
-                                        "a.a.a..a.ab",
-                                        ".a.a.a.a.ab",
-                                        "abcdefghijklmnopqrstuvwxyz01234.ab",
-                                        "ab0cd.abd.aA*sd.0.9.0-9.ABOYZ",
-                                        "ab*cd.abd.aAasd.0.9.0-9.ABOYZ",
-                                        "ab0cd.abd.aAasd.0.9.0*9.ABOYZ",
-                                        "*b0cd.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                        "ab0c*.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.0.9.0-*.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.0.9.*-9.ABOYZ",
-                                        "-b0cd.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                        "ab0c-.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.-.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.0.9.--9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.0.9.0--.ABOYZ",
-                                        "_b0cd.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                        "ab0c_.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd._.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.0.9._-9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.0.9.0-_.ABOYZ",
-                                        "-.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d.-.0.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.0.9.-.ABOYZ",
-                                        "_.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d._.0.9.0-9.ABOYZ",
-                                        "ab0cd.ab_d.aA-sd.0.9._.ABOYZ"};
-  td::vector<td::string> good_domains = {"a.a.a.a.a.a.ab",
-                                         "a.a.a.a.a.a.abcdef",
-                                         "a.a.a.a.a.a.aboyz",
-                                         "a.a.a.a.a.a.ABOYZ",
-                                         "a.a.a.a.a.a.AbOyZ",
-                                         "abcdefghijklmnopqrstuvwxyz0123.ab",
-                                         "ab0cd.ab_d.aA-sd.0.9.0-9.ABOYZ",
-                                         "A.Z.aA-sd.a.z.0-9.ABOYZ"};
-
-  for (auto &userdata : bad_userdatas) {
-    for (auto &domain : bad_domains) {
-      check_is_email_address(userdata + '@' + domain, false);
-      check_is_email_address(userdata + domain, false);
-    }
-    for (auto &domain : good_domains) {
-      check_is_email_address(userdata + '@' + domain, false);
-      check_is_email_address(userdata + domain, false);
-    }
-  }
-  for (auto &userdata : good_userdatas) {
-    for (auto &domain : bad_domains) {
-      check_is_email_address(userdata + '@' + domain, false);
-      check_is_email_address(userdata + domain, false);
-    }
-    for (auto &domain : good_domains) {
-      check_is_email_address(userdata + '@' + domain, true);
-      check_is_email_address(userdata + domain, false);
-    }
-  }
-}
-
-static void check_url(const td::string &str, const td::vector<td::string> &expected_urls,
-                      td::vector<td::string> expected_email_addresses = {}) {
-  auto result_slice = td::find_urls(str);
-  td::vector<td::string> result_urls;
-  td::vector<td::string> result_email_addresses;
-  for (auto &it : result_slice) {
-    if (!it.second) {
-      result_urls.push_back(it.first.str());
-    } else {
-      result_email_addresses.push_back(it.first.str());
-    }
-  }
-  if (result_urls != expected_urls) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result_urls) << td::tag("expected", expected_urls);
-  }
-  if (result_email_addresses != expected_email_addresses) {
-    LOG(FATAL) << td::tag("text", str) << td::tag("receive", result_email_addresses)
-               << td::tag("expected", expected_email_addresses);
-  }
-}
-
-TEST(MessageEntities, url) {
-  check_url("telegram.org", {"telegram.org"});
-  check_url("(telegram.org)", {"telegram.org"});
-  check_url("\ntelegram.org)", {"telegram.org"});
-  check_url(" telegram.org)", {"telegram.org"});
-  check_url(".telegram.org)", {});
-  check_url("()telegram.org/?q=()", {"telegram.org/?q=()"});
-  check_url("\"telegram.org\"", {"telegram.org"});
-  check_url(" telegram. org. www. com... telegram.org... ...google.com...", {"telegram.org"});
-  check_url(" telegram.org ", {"telegram.org"});
-  check_url("Такой сайт: http://www.google.com или такой telegram.org ", {"http://www.google.com", "telegram.org"});
-  check_url(" telegram.org. ", {"telegram.org"});
-  check_url("http://google,.com", {});
-  check_url("http://telegram.org/?asd=123#123.", {"http://telegram.org/?asd=123#123"});
-  check_url("[http://google.com](test)", {"http://google.com"});
-  check_url("", {});
-  check_url(".", {});
-  check_url("http://@google.com", {});
-  check_url("http://@goog.com", {});  // TODO: server fix
-  check_url("http://@@google.com", {});
-  check_url("http://a@google.com", {"http://a@google.com"});
-  check_url("http://test@google.com", {"http://test@google.com"});
-  check_url("google.com:᪉᪉᪉᪉᪉", {"google.com"});
-  check_url("https://telegram.org", {"https://telegram.org"});
-  check_url("http://telegram.org", {"http://telegram.org"});
-  check_url("ftp://telegram.org", {"ftp://telegram.org"});
-  check_url("ftps://telegram.org", {});
-  check_url("sftp://telegram.org", {});
-  check_url("tonsite://telegram.ton", {"tonsite://telegram.ton"});
-  check_url("telegram.ton", {"telegram.ton"});
-  check_url("telegram.onion", {"telegram.onion"});
-  check_url("telegram.tonsite", {});
-  check_url("hTtPs://telegram.org", {"hTtPs://telegram.org"});
-  check_url("HTTP://telegram.org", {"HTTP://telegram.org"});
-  check_url("аHTTP://telegram.org", {"HTTP://telegram.org"});
-  check_url("sHTTP://telegram.org", {});
-  check_url("://telegram.org", {});
-  check_url("google.com:᪀᪀", {"google.com"});
-  check_url(
-      "http://"
-      "abcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkab"
-      "cdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcd"
-      "efghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdef"
-      "ghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefgh"
-      "ijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghij"
-      "kabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijka"
-      "bcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabc"
-      "defghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijkabcdefghijk.com",
-      {});
-  check_url("http://  .com", {});
-  check_url("URL:     .com", {});
-  check_url("URL: .com", {});
-  check_url(".com", {});
-  check_url("http://  .", {});
-  check_url("http://.", {});
-  check_url("http://.com", {});
-  check_url("http://  .", {});
-  check_url(",ahttp://google.com", {"http://google.com"});
-  check_url(".ahttp://google.com", {});
-  check_url("http://1.0", {});
-  check_url("http://a.0", {});
-  check_url("http://a.a", {});
-  check_url("google.com:1#ab c", {"google.com:1#ab"});
-  check_url("google.com:1#", {"google.com:1"});
-  check_url("google.com:1#1", {"google.com:1#1"});
-  check_url("google.com:00000001/abs", {"google.com:00000001/abs"});
-  check_url("google.com:000000065535/abs", {"google.com:000000065535/abs"});
-  check_url("google.com:000000065536/abs", {"google.com"});
-  check_url("google.com:000000080/abs", {"google.com:000000080/abs"});
-  check_url("google.com:0000000/abs", {"google.com"});
-  check_url("google.com:0/abs", {"google.com"});
-  check_url("google.com:/abs", {"google.com"});
-  check_url("google.com:65535", {"google.com:65535"});
-  check_url("google.com:65536", {"google.com"});
-  check_url("google.com:99999", {"google.com"});
-  check_url("google.com:100000", {"google.com"});
-  check_url("127.001", {});
-  check_url("127.0.0.1", {"127.0.0.1"});
-  check_url("127.0.0.01", {});
-  check_url("127.0.0.256", {});
-  check_url("127.0.0.300", {});
-  check_url("127.0.0.1000", {});
-  check_url("127.0.0.260", {});
-  check_url("1.0", {});
-  check_url("www.🤙.tk", {"www.🤙.tk"});
-  check_url("a.ab", {});
-  check_url("test.abd", {});
-  check_url("ТеСт.Москва", {});
-  check_url("ТеСт.МоСкВΑ", {});
-  check_url("ТеСт.МоСкВа", {"ТеСт.МоСкВа"});
-  check_url("ТеСт.МоСкВач", {});
-  check_url("http://ÀТеСт.МоСкВач", {"http://ÀТеСт.МоСкВач"});
-  check_url("ÀÁ.com. ÀÁ.com.", {"ÀÁ.com", "ÀÁ.com"});
-  check_url("ÀÁ.com,ÀÁ.com.", {"ÀÁ.com", "ÀÁ.com"});
-  check_url("teiegram.org/test", {});
-  check_url("TeiegraM.org/test", {});
-  check_url("http://test.google.com/?q=abc()}[]def", {"http://test.google.com/?q=abc()"});
-  check_url("http://test.google.com/?q=abc([{)]}def", {"http://test.google.com/?q=abc([{)]}def"});
-  check_url("http://test.google.com/?q=abc(){}]def", {"http://test.google.com/?q=abc(){}"});
-  check_url("http://test.google.com/?q=abc){}[]def", {"http://test.google.com/?q=abc"});
-  check_url("http://test.google.com/?q=abc(){}[]def", {"http://test.google.com/?q=abc(){}[]def"});
-  check_url("http://test-.google.com", {});
-  check_url("http://test_.google.com", {"http://test_.google.com"});
-  check_url("http://google_.com", {});
-  check_url("http://google._com_", {});
-  check_url("http://[2001:4860:0:2001::68]/", {});  // TODO
-  check_url("tg://resolve", {});
-  check_url("test.abd", {});
-  check_url("/.b/..a    @.....@/. a.ba", {"a.ba"});
-  check_url("bbbbbbbbbbbbbb.@.@", {});
-  check_url("http://google.com/", {"http://google.com/"});
-  check_url("http://google.com?", {"http://google.com"});
-  check_url("http://google.com#", {"http://google.com"});
-  check_url("http://google.com##", {"http://google.com##"});
-  check_url("http://google.com/?", {"http://google.com/"});
-  check_url("https://www.google.com/ab,", {"https://www.google.com/ab"});
-  check_url("@.", {});
-  check_url(
-      "a.b.google.com dfsknnfs gsdfgsg http://códuia.de/ dffdg,\" 12)(cpia.de/())(\" http://гришка.рф/ sdufhdf "
-      "http://xn--80afpi2a3c.xn--p1ai/ I have a good time.Thanks, guys!\n\n(hdfughidufhgdis) go#ogle.com гришка.рф "
-      "hsighsdf gi почта.рф\n\n✪df.ws/123      "
-      "xn--80afpi2a3c.xn--p1ai\n\nhttp://foo.com/blah_blah\nhttp://foo.com/blah_blah/\n(Something like "
-      "http://foo.com/blah_blah)\nhttp://foo.com/blah_blah_(wikipedi8989a_Вася)\n(Something like "
-      "http://foo.com/blah_blah_(Стакан_007))\nhttp://foo.com/blah_blah.\nhttp://foo.com/blah_blah/.\n<http://foo.com/"
-      "blah_blah>\n<http://fo@@@@@@@@@^%#*@^&@$#*@#%^*&!^#o.com/blah_blah/>\nhttp://foo.com/blah_blah,\nhttp://"
-      "www.example.com/wpstyle/?p=364.\nhttp://✪df.ws/123\nrdar://1234\nrdar:/1234\nhttp://"
-      "userid:password@example.com:8080\nhttp://userid@example.com\nhttp://userid@example.com:8080\nhttp://"
-      "userid:password@example.com\nhttp://example.com:8080 "
-      "x-yojimbo-item://6303E4C1-xxxx-45A6-AB9D-3A908F59AE0E\nmessage://"
-      "%3c330e7f8409726r6a4ba78dkf1fd71420c1bf6ff@mail.gmail.com%3e\nhttp://➡️.ws/䨹\nwww.➡️.ws/"
-      "䨹\n<tag>http://example.com</tag>\nJust a www.example.com "
-      "link.\n\n➡️.ws/"
-      "䨹\n\nabcdefghijklmnopqrstuvwxyz0123456789qwe_sdfsdf.aweawe-sdfs.com\nwww.🤙.tk:1\ngoogle.com:"
-      "᪉᪉᪉᪉\ngoogle."
-      "com:᪀᪀\nhttp://  .com\nURL:     .com\nURL: "
-      ".com\n\ngoogle.com?qwe\ngoogle.com#qwe\ngoogle.com/?\ngoogle.com/#\ngoogle.com?\ngoogle.com#\n",
-      {"a.b.google.com",
-       "http://códuia.de/",
-       "cpia.de/()",
-       "http://гришка.рф/",
-       "http://xn--80afpi2a3c.xn--p1ai/",
-       "гришка.рф",
-       "почта.рф",
-       "✪df.ws/123",
-       "xn--80afpi2a3c.xn--p1ai",
-       "http://foo.com/blah_blah",
-       "http://foo.com/blah_blah/",
-       "http://foo.com/blah_blah",
-       "http://foo.com/blah_blah_(wikipedi8989a_Вася)",
-       "http://foo.com/blah_blah_(Стакан_007)",
-       "http://foo.com/blah_blah",
-       "http://foo.com/blah_blah/",
-       "http://foo.com/blah_blah",
-       "http://foo.com/blah_blah",
-       "http://www.example.com/wpstyle/?p=364",
-       "http://✪df.ws/123",
-       "http://userid:password@example.com:8080",
-       "http://userid@example.com",
-       "http://userid@example.com:8080",
-       "http://userid:password@example.com",
-       "http://example.com:8080",
-       "http://➡️.ws/䨹",
-       "www.➡️.ws/䨹",
-       "http://example.com",
-       "www.example.com",
-       "➡️.ws/䨹",
-       "abcdefghijklmnopqrstuvwxyz0123456789qwe_sdfsdf.aweawe-sdfs.com",
-       "www.🤙.tk:1",
-       "google.com",
-       "google.com",
-       "google.com?qwe",
-       "google.com#qwe",
-       "google.com/",
-       "google.com/#",
-       "google.com",
-       "google.com"});
-  check_url("https://t.…", {});
-  check_url("('http://telegram.org/a-b/?br=ie&lang=en',)", {"http://telegram.org/a-b/?br=ie&lang=en"});
-  check_url("https://ai.telegram.org/bot%20bot/test-...", {"https://ai.telegram.org/bot%20bot/test-"});
-  check_url("a.bc@c.com", {}, {"a.bc@c.com"});
-  check_url("https://a.bc@c.com", {"https://a.bc@c.com"});
-  check_url("https://a.de[bc@c.com", {"https://a.de"}, {"bc@c.com"});
-  check_url("https://a.de/bc@c.com", {"https://a.de/bc@c.com"});
-  check_url("https://a.de]bc@c.com", {"https://a.de"}, {"bc@c.com"});
-  check_url("https://a.de{bc@c.com", {"https://a.de"}, {"bc@c.com"});
-  check_url("https://a.de}bc@c.com", {"https://a.de"}, {"bc@c.com"});
-  check_url("https://a.de(bc@c.com", {"https://a.de"}, {"bc@c.com"});
-  check_url("https://a.de)bc@c.com", {"https://a.de"}, {"bc@c.com"});
-  check_url("https://a.debc@c.com", {"https://a.debc@c.com"});
-  check_url("https://a.de'bc@c.com", {"https://a.de"}, {"bc@c.com"});
-  check_url("https://a.de`bc@c.com", {"https://a.de"}, {"bc@c.com"});
-  check_url("https://a.bcde.fg@c.com", {"https://a.bcde.fg@c.com"});
-  check_url("https://a:h.bcde.fg@c.com", {"https://a:h.bcde.fg@c.com"});
-  check_url("https://abc@c.com", {"https://abc@c.com"});
-  check_url("https://de[bc@c.com", {}, {"bc@c.com"});
-  check_url("https://de/bc@c.com", {});
-  check_url("https://de]bc@c.com", {}, {"bc@c.com"});
-  check_url("https://de{bc@c.com", {}, {"bc@c.com"});
-  check_url("https://de}bc@c.com", {}, {"bc@c.com"});
-  check_url("https://de(bc@c.com", {}, {"bc@c.com"});
-  check_url("https://de)bc@c.com", {}, {"bc@c.com"});
-  check_url("https://de\\bc@c.com", {"https://de\\bc@c.com"});
-  check_url("https://de'bc@c.com", {}, {"bc@c.com"});
-  check_url("https://de`bc@c.com", {}, {"bc@c.com"});
-  check_url("https://bc:defg@c.com", {"https://bc:defg@c.com"});
-  check_url("https://a:hbc:defg@c.com", {"https://a:hbc:defg@c.com"});
-  check_url("https://a.bc@test.com:cd.com", {"https://a.bc@test.com", "cd.com"});
-  check_url("telegram.Org", {});
-  check_url("telegram.ORG", {"telegram.ORG"});
-  check_url("a.b.c.com.a.b.c", {});
-  check_url("File '/usr/views.py'", {});  // TODO server fix
-  check_url("@views.py'", {});            // TODO server fix
-  check_url("#views.py'", {});            // TODO server fix
-  check_url("/views.py'", {});            // TODO server fix
-  check_url(".views.py", {});
-  check_url("'views.py'", {"views.py"});
-  check_url("bug.http://test.com/test/+#", {});  // TODO {"http://test.com/test/+#"}
-  check_url("//AB.C.D.E.F.GH//", {});
-  check_url("<http://www.ics.uci.edu/pub/ietf/uri/historical.html#WARNING>",
-            {"http://www.ics.uci.edu/pub/ietf/uri/historical.html#WARNING"});
-  check_url("Look :test@example.com", {":test@example.com"}, {});  // TODO {}, {"test@example.com"}
-  check_url("Look mailto:test@example.com", {}, {"test@example.com"});
-  check_url("http://test.com#a", {"http://test.com#a"});
-  check_url("http://test.com#", {"http://test.com"});
-  check_url("http://test.com?#", {"http://test.com?#"});
-  check_url("http://test.com/?#", {"http://test.com/?#"});
-  check_url("https://t.me/abcdef…", {"https://t.me/abcdef"});
-  check_url("https://t.me…", {"https://t.me"});
-  check_url("https://t.m…", {});
-  check_url("https://t.…", {});
-  check_url("https://t…", {});
-  check_url("👉http://ab.com/cdefgh-1IJ", {"http://ab.com/cdefgh-1IJ"});
-  check_url("...👉http://ab.com/cdefgh-1IJ", {});  // TODO
-  check_url(".?", {});
-  check_url("http://test―‑@―google―.―com―/―–―‐―/―/―/―?―‑―#―――", {"http://test―‑@―google―.―com―/―–―‐―/―/―/―?―‑―#―――"});
-  check_url("http://google.com/‖", {"http://google.com/"});
-  check_url("a@b@c.com", {}, {});
-  check_url("abc@c.com@d.com", {});
-  check_url("a@b.com:c@1", {}, {"a@b.com"});
-  check_url("test@test.software", {}, {"test@test.software"});
-  check_url("a:b?@gmail.com", {});
-  check_url("a?:b@gmail.com", {});
-  check_url("a#:b@gmail.com", {});
-  check_url("a:b#@gmail.com", {});
-  check_url("a!:b@gmail.com", {"a!:b@gmail.com"});
-  check_url("a:b!@gmail.com", {"a:b!@gmail.com"});
-  check_url("http://test_.com", {});
-  check_url("test_.com", {});
-  check_url("_test.com", {});
-  check_url("_.test.com", {"_.test.com"});
-}
-
-static void check_fix_formatted_text(td::string str, td::vector<td::MessageEntity> entities,
-                                     const td::string &expected_str,
-                                     const td::vector<td::MessageEntity> &expected_entities, bool allow_empty = true,
-                                     bool skip_new_entities = false, bool skip_bot_commands = false,
-                                     bool skip_trim = true) {
-  ASSERT_TRUE(td::fix_formatted_text(str, entities, allow_empty, skip_new_entities, skip_bot_commands, true, skip_trim)
-                  .is_ok());
-  ASSERT_STREQ(expected_str, str);
-  ASSERT_EQ(expected_entities, entities);
-}
-
-static void check_fix_formatted_text(td::string str, td::vector<td::MessageEntity> entities, bool allow_empty,
-                                     bool skip_new_entities, bool skip_bot_commands, bool skip_trim) {
-  ASSERT_TRUE(td::fix_formatted_text(str, entities, allow_empty, skip_new_entities, skip_bot_commands, true, skip_trim)
-                  .is_error());
-}
-
-TEST(MessageEntities, fix_formatted_text) {
-  td::string str;
-  td::string fixed_str;
-  for (auto i = 0; i <= 32; i++) {
-    str += static_cast<char>(i);
-    if (i != 13) {
-      if (i != 10) {
-        fixed_str += ' ';
-      } else {
-        fixed_str += str.back();
-      }
-    }
-  }
-
-  check_fix_formatted_text(str, {}, "", {}, true, true, true, true);
-  check_fix_formatted_text(str, {}, "", {}, true, true, false, true);
-  check_fix_formatted_text(str, {}, "", {}, true, false, true, true);
-  check_fix_formatted_text(str, {}, "", {}, true, false, false, true);
-  check_fix_formatted_text(str, {}, "", {}, true, false, false, false);
-  check_fix_formatted_text(str, {}, false, false, false, false);
-  check_fix_formatted_text(str, {}, false, false, false, true);
-
-  check_fix_formatted_text("  aba\n ", {}, "  aba\n ", {}, true, true, true, true);
-  check_fix_formatted_text("  aba\n ", {}, "aba", {}, true, true, true, false);
-  check_fix_formatted_text("  \n ", {}, "", {}, true, true, true, true);
-  check_fix_formatted_text("  \n ", {}, "", {}, true, true, true, false);
-  check_fix_formatted_text("  \n ", {}, false, true, true, false);
-
-  str += "a  \r\n  ";
-  fixed_str += "a  \n  ";
-
-  for (td::int32 i = 33; i <= 35; i++) {
-    td::vector<td::MessageEntity> entities;
-    entities.emplace_back(td::MessageEntity::Type::Pre, 0, i);
-
-    td::vector<td::MessageEntity> fixed_entities = entities;
-    fixed_entities.back().length = i - 1;
-    check_fix_formatted_text(str, entities, fixed_str, fixed_entities, true, false, false, true);
-
-    td::string expected_str = fixed_str.substr(0, 33);
-    fixed_entities.back().length = i == 33 ? 32 : 33;
-    check_fix_formatted_text(str, entities, expected_str, fixed_entities, false, false, false, false);
-  }
-
-  for (td::int32 i = 33; i <= 35; i++) {
-    td::vector<td::MessageEntity> entities;
-    entities.emplace_back(td::MessageEntity::Type::Bold, 0, i);
-
-    td::vector<td::MessageEntity> fixed_entities;
-    fixed_entities.emplace_back(td::MessageEntity::Type::Bold, 0, i - 1 /* deleted \r */);
-    check_fix_formatted_text(str, entities, fixed_str, fixed_entities, true, false, false, true);
-
-    td::string expected_str = fixed_str.substr(0, 33);
-    if (i != 33) {
-      fixed_entities.back().length = 33;
-    }
-    check_fix_formatted_text(str, entities, expected_str, fixed_entities, false, false, false, false);
-  }
-
-  str = "👉 👉  ";
-  for (int i = 0; i < 10; i++) {
-    td::vector<td::MessageEntity> entities;
-    entities.emplace_back(td::MessageEntity::Type::Bold, i, 1);
-    if (i != 2 && i != 5 && i != 6) {
-      check_fix_formatted_text(str, entities, true, true, true, true);
-      check_fix_formatted_text(str, entities, false, false, false, false);
-    } else {
-      check_fix_formatted_text(str, entities, str, {{td::MessageEntity::Type::Bold, i, 1}}, true, true, true, true);
-      if (i == 2) {
-        check_fix_formatted_text(str, entities, str.substr(0, str.size() - 2), {{td::MessageEntity::Type::Bold, i, 1}},
-                                 false, false, false, false);
-      } else {
-        check_fix_formatted_text(str, entities, str.substr(0, str.size() - 2), {}, false, false, false, false);
-      }
-    }
-  }
-
-  str = "  /test @abaca #ORD $ABC  telegram.org ";
-  for (auto skip_trim : {false, true}) {
-    td::int32 shift = skip_trim ? 2 : 0;
-    td::string expected_str = skip_trim ? str : str.substr(2, str.size() - 3);
-
-    for (auto skip_new_entities : {false, true}) {
-      for (auto skip_bot_commands : {false, true}) {
-        td::vector<td::MessageEntity> entities;
-        if (!skip_new_entities) {
-          if (!skip_bot_commands) {
-            entities.emplace_back(td::MessageEntity::Type::BotCommand, shift, 5);
-          }
-          entities.emplace_back(td::MessageEntity::Type::Mention, shift + 6, 6);
-          entities.emplace_back(td::MessageEntity::Type::Hashtag, shift + 13, 4);
-          entities.emplace_back(td::MessageEntity::Type::Cashtag, shift + 18, 4);
-          entities.emplace_back(td::MessageEntity::Type::Url, shift + 24, 12);
-        }
-
-        check_fix_formatted_text(str, {}, expected_str, entities, true, skip_new_entities, skip_bot_commands,
-                                 skip_trim);
-        check_fix_formatted_text(str, {}, expected_str, entities, false, skip_new_entities, skip_bot_commands,
-                                 skip_trim);
-      }
-    }
-  }
-
-  str = "aba \r\n caba ";
-  td::UserId user_id(static_cast<td::int64>(1));
-  for (td::int32 length = 1; length <= 3; length++) {
-    for (td::int32 offset = 0; static_cast<size_t>(offset + length) <= str.size(); offset++) {
-      for (auto type : {td::MessageEntity::Type::Bold, td::MessageEntity::Type::Url, td::MessageEntity::Type::TextUrl,
-                        td::MessageEntity::Type::MentionName}) {
-        for (auto skip_trim : {false, true}) {
-          fixed_str = skip_trim ? "aba \n caba " : "aba \n caba";
-          auto fixed_length = offset <= 4 && offset + length >= 5 ? length - 1 : length;
-          auto fixed_offset = offset >= 5 ? offset - 1 : offset;
-          while (static_cast<size_t>(fixed_offset + fixed_length) > fixed_str.size()) {
-            fixed_length--;
-          }
-
-          td::vector<td::MessageEntity> entities;
-          entities.emplace_back(type, offset, length);
-          if (type == td::MessageEntity::Type::TextUrl) {
-            entities.back().argument = "t.me";
-          } else if (type == td::MessageEntity::Type::MentionName) {
-            entities.back().user_id = user_id;
-          }
-          td::vector<td::MessageEntity> fixed_entities;
-          if (fixed_length > 0) {
-            fixed_entities.emplace_back(type, fixed_offset, fixed_length);
-            if (type == td::MessageEntity::Type::TextUrl) {
-              fixed_entities.back().argument = "t.me";
-            } else if (type == td::MessageEntity::Type::MentionName) {
-              fixed_entities.back().user_id = user_id;
-            }
-          }
-          check_fix_formatted_text(str, entities, fixed_str, fixed_entities, true, false, false, skip_trim);
-        }
-      }
-    }
-  }
-
-  str = "aba caba";
-  for (td::int32 length = -10; length <= 10; length++) {
-    for (td::int32 offset = -10; offset <= 10; offset++) {
-      td::vector<td::MessageEntity> entities;
-      entities.emplace_back(td::MessageEntity::Type::Bold, offset, length);
-      if (length < 0 || offset < 0 || (length > 0 && static_cast<size_t>(length + offset) > str.size())) {
-        check_fix_formatted_text(str, entities, true, false, false, false);
-        check_fix_formatted_text(str, entities, false, false, false, true);
-        continue;
-      }
-
-      td::vector<td::MessageEntity> fixed_entities;
-      if (length > 0) {
-        fixed_entities.emplace_back(td::MessageEntity::Type::Bold, offset, length);
-      }
-
-      check_fix_formatted_text(str, entities, str, fixed_entities, true, false, false, false);
-      check_fix_formatted_text(str, entities, str, fixed_entities, false, false, false, true);
-    }
-  }
-
-  str = "abadcaba";
-  for (td::int32 length = 1; length <= 7; length++) {
-    for (td::int32 offset = 0; offset <= 8 - length; offset++) {
-      for (td::int32 length2 = 1; length2 <= 7; length2++) {
-        for (td::int32 offset2 = 0; offset2 <= 8 - length2; offset2++) {
-          if (offset != offset2) {
-            td::vector<td::MessageEntity> entities;
-            entities.emplace_back(td::MessageEntity::Type::TextUrl, offset, length, "t.me");
-            entities.emplace_back(td::MessageEntity::Type::TextUrl, offset2, length2, "t.me");
-            entities.emplace_back(td::MessageEntity::Type::TextUrl, offset2 + length2, 1);
-            td::vector<td::MessageEntity> fixed_entities = entities;
-            fixed_entities.pop_back();
-            std::sort(fixed_entities.begin(), fixed_entities.end());
-            if (fixed_entities[0].offset + fixed_entities[0].length > fixed_entities[1].offset) {
-              fixed_entities.pop_back();
-            }
-            check_fix_formatted_text(str, entities, str, fixed_entities, false, false, false, false);
-          }
-        }
-      }
-    }
-  }
-
-  for (auto text : {" \n ➡️ ➡️ ➡️ ➡️  \n ", "\n\n\nab cd ef gh        "}) {
-    str = text;
-    td::vector<td::MessageEntity> entities;
-    td::vector<td::MessageEntity> fixed_entities;
-
-    auto length = td::narrow_cast<int>(td::utf8_utf16_length(str));
-    for (int i = 0; i < 10; i++) {
-      if ((i + 1) * 3 + 2 <= length) {
-        entities.emplace_back(td::MessageEntity::Type::Bold, (i + 1) * 3, 2);
-      }
-      if ((i + 2) * 3 <= length) {
-        entities.emplace_back(td::MessageEntity::Type::Italic, (i + 1) * 3 + 2, 1);
-      }
-
-      if (i < 4) {
-        fixed_entities.emplace_back(td::MessageEntity::Type::Bold, i * 3, 2);
-      }
-      if (i < 3) {
-        fixed_entities.emplace_back(td::MessageEntity::Type::Italic, i * 3 + 2, 1);
-      }
-    }
-
-    check_fix_formatted_text(str, entities, td::utf8_utf16_substr(str, 3, 11).str(), fixed_entities, false, false,
-                             false, false);
-  }
-
-  for (td::string text : {"\t", "\r", "\n", "\t ", "\r ", "\n "}) {
-    for (auto type : {td::MessageEntity::Type::Bold, td::MessageEntity::Type::TextUrl}) {
-      check_fix_formatted_text(text, {{type, 0, 1, "http://telegram.org/"}}, "", {}, true, false, false, true);
-    }
-  }
-  check_fix_formatted_text("\r ", {{td::MessageEntity::Type::Bold, 0, 2}, {td::MessageEntity::Type::Underline, 0, 1}},
-                           "", {}, true, false, false, true);
-  check_fix_formatted_text("a \r", {{td::MessageEntity::Type::Bold, 0, 3}, {td::MessageEntity::Type::Underline, 2, 1}},
-                           "a ", {{td::MessageEntity::Type::Bold, 0, 2}}, true, false, false, true);
-  check_fix_formatted_text("a \r ", {{td::MessageEntity::Type::Bold, 0, 4}, {td::MessageEntity::Type::Underline, 2, 1}},
-                           "a  ", {{td::MessageEntity::Type::Bold, 0, 3}}, true, false, false, true);
-  check_fix_formatted_text("a \r b",
-                           {{td::MessageEntity::Type::Bold, 0, 5}, {td::MessageEntity::Type::Underline, 2, 1}}, "a  b",
-                           {{td::MessageEntity::Type::Bold, 0, 4}}, true, false, false, true);
-
-  check_fix_formatted_text("a\rbc\r",
-                           {{td::MessageEntity::Type::Italic, 0, 1},
-                            {td::MessageEntity::Type::Bold, 0, 2},
-                            {td::MessageEntity::Type::Italic, 3, 2},
-                            {td::MessageEntity::Type::Bold, 3, 1}},
-                           "abc",
-                           {{td::MessageEntity::Type::Bold, 0, 1},
-                            {td::MessageEntity::Type::Italic, 0, 1},
-                            {td::MessageEntity::Type::Bold, 2, 1},
-                            {td::MessageEntity::Type::Italic, 2, 1}});
-  check_fix_formatted_text("a ", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Bold, 0, 1}}, "a",
-                           {{td::MessageEntity::Type::Bold, 0, 1}, {td::MessageEntity::Type::Italic, 0, 1}}, false,
-                           false, false, false);
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 1, 1}, {td::MessageEntity::Type::Italic, 0, 1}},
-                           "abc", {{td::MessageEntity::Type::Italic, 0, 2}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 1, 1}, {td::MessageEntity::Type::Italic, 1, 1}},
-                           "abc", {{td::MessageEntity::Type::Italic, 1, 1}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Italic, 1, 2}},
-                           "abc", {{td::MessageEntity::Type::Italic, 0, 3}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Italic, 2, 1}},
-                           "abc", {{td::MessageEntity::Type::Italic, 0, 3}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Italic, 2, 1}},
-                           "abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Italic, 2, 1}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Bold, 1, 2}},
-                           "abc",
-                           {{td::MessageEntity::Type::Italic, 0, 1},
-                            {td::MessageEntity::Type::Bold, 1, 2},
-                            {td::MessageEntity::Type::Italic, 1, 1}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}},
-                           "abc", {{td::MessageEntity::Type::Italic, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 2, 1}},
-                           "abc", {{td::MessageEntity::Type::Italic, 0, 1}, {td::MessageEntity::Type::Bold, 2, 1}});
-  check_fix_formatted_text("@tests @tests", {{td::MessageEntity::Type::Italic, 0, 13}}, "@tests @tests",
-                           {{td::MessageEntity::Type::Mention, 0, 6},
-                            {td::MessageEntity::Type::Italic, 0, 6},
-                            {td::MessageEntity::Type::Italic, 6, 1},
-                            {td::MessageEntity::Type::Mention, 7, 6},
-                            {td::MessageEntity::Type::Italic, 7, 6}});
-
-  // __a~b~__
-  check_fix_formatted_text(
-      "ab", {{td::MessageEntity::Type::Underline, 0, 2}, {td::MessageEntity::Type::Strikethrough, 1, 1}}, "ab",
-      {{td::MessageEntity::Type::Underline, 0, 1},
-       {td::MessageEntity::Type::Underline, 1, 1},
-       {td::MessageEntity::Type::Strikethrough, 1, 1}});
-  check_fix_formatted_text("ab",
-                           {{td::MessageEntity::Type::Underline, 0, 1},
-                            {td::MessageEntity::Type::Underline, 1, 1},
-                            {td::MessageEntity::Type::Strikethrough, 1, 1}},
-                           "ab",
-                           {{td::MessageEntity::Type::Underline, 0, 1},
-                            {td::MessageEntity::Type::Underline, 1, 1},
-                            {td::MessageEntity::Type::Strikethrough, 1, 1}});
-  check_fix_formatted_text(
-      "ab", {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Underline, 1, 1}}, "ab",
-      {{td::MessageEntity::Type::Strikethrough, 0, 1},
-       {td::MessageEntity::Type::Underline, 1, 1},
-       {td::MessageEntity::Type::Strikethrough, 1, 1}});
-  check_fix_formatted_text("ab",
-                           {{td::MessageEntity::Type::Strikethrough, 0, 1},
-                            {td::MessageEntity::Type::Strikethrough, 1, 1},
-                            {td::MessageEntity::Type::Underline, 1, 1}},
-                           "ab",
-                           {{td::MessageEntity::Type::Strikethrough, 0, 1},
-                            {td::MessageEntity::Type::Underline, 1, 1},
-                            {td::MessageEntity::Type::Strikethrough, 1, 1}});
-
-  // __||a||b__
-  check_fix_formatted_text("ab", {{td::MessageEntity::Type::Underline, 0, 2}, {td::MessageEntity::Type::Spoiler, 0, 1}},
-                           "ab",
-                           {{td::MessageEntity::Type::Underline, 0, 2}, {td::MessageEntity::Type::Spoiler, 0, 1}});
-  check_fix_formatted_text("ab",
-                           {{td::MessageEntity::Type::Underline, 0, 1},
-                            {td::MessageEntity::Type::Underline, 1, 1},
-                            {td::MessageEntity::Type::Spoiler, 0, 1}},
-                           "ab",
-                           {{td::MessageEntity::Type::Underline, 0, 2}, {td::MessageEntity::Type::Spoiler, 0, 1}});
-
-  // _*a*_\r_*b*_
-  check_fix_formatted_text("a\rb",
-                           {{td::MessageEntity::Type::Bold, 0, 1},
-                            {td::MessageEntity::Type::Italic, 0, 1},
-                            {td::MessageEntity::Type::Bold, 2, 1},
-                            {td::MessageEntity::Type::Italic, 2, 1}},
-                           "ab", {{td::MessageEntity::Type::Bold, 0, 2}, {td::MessageEntity::Type::Italic, 0, 2}});
-  check_fix_formatted_text("a\nb",
-                           {{td::MessageEntity::Type::Bold, 0, 1},
-                            {td::MessageEntity::Type::Italic, 0, 1},
-                            {td::MessageEntity::Type::Bold, 2, 1},
-                            {td::MessageEntity::Type::Italic, 2, 1}},
-                           "a\nb",
-                           {{td::MessageEntity::Type::Bold, 0, 1},
-                            {td::MessageEntity::Type::Italic, 0, 1},
-                            {td::MessageEntity::Type::Bold, 2, 1},
-                            {td::MessageEntity::Type::Italic, 2, 1}});
-
-  // ||`a`||
-  check_fix_formatted_text("a", {{td::MessageEntity::Type::Pre, 0, 1}, {td::MessageEntity::Type::Spoiler, 0, 1}}, "a",
-                           {{td::MessageEntity::Type::Pre, 0, 1}});
-  check_fix_formatted_text("a", {{td::MessageEntity::Type::Spoiler, 0, 1}, {td::MessageEntity::Type::Pre, 0, 1}}, "a",
-                           {{td::MessageEntity::Type::Pre, 0, 1}});
-
-  check_fix_formatted_text("abc",
-                           {{td::MessageEntity::Type::Pre, 0, 3}, {td::MessageEntity::Type::Strikethrough, 1, 1}},
-                           "abc", {{td::MessageEntity::Type::Pre, 0, 3}});
-  check_fix_formatted_text(
-      "abc", {{td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 0, 3}}, "abc",
-      {{td::MessageEntity::Type::Strikethrough, 0, 1},
-       {td::MessageEntity::Type::Pre, 1, 1},
-       {td::MessageEntity::Type::Strikethrough, 2, 1}});
-  check_fix_formatted_text(
-      "abc", {{td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 1, 2}}, "abc",
-      {{td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 2, 1}});
-  check_fix_formatted_text(
-      "abc", {{td::MessageEntity::Type::Pre, 1, 1}, {td::MessageEntity::Type::Strikethrough, 0, 2}}, "abc",
-      {{td::MessageEntity::Type::Strikethrough, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::Pre, 0, 3}, {td::MessageEntity::Type::BlockQuote, 1, 1}},
-                           "abc", {{td::MessageEntity::Type::BlockQuote, 1, 1}});
-  check_fix_formatted_text("abc", {{td::MessageEntity::Type::BlockQuote, 0, 3}, {td::MessageEntity::Type::Pre, 1, 1}},
-                           "abc", {{td::MessageEntity::Type::BlockQuote, 0, 3}, {td::MessageEntity::Type::Pre, 1, 1}});
-
-  check_fix_formatted_text("example.com", {}, "example.com", {{td::MessageEntity::Type::Url, 0, 11}});
-  check_fix_formatted_text("example.com", {{td::MessageEntity::Type::Pre, 0, 3}}, "example.com",
-                           {{td::MessageEntity::Type::Pre, 0, 3}});
-  check_fix_formatted_text("example.com", {{td::MessageEntity::Type::BlockQuote, 0, 3}}, "example.com",
-                           {{td::MessageEntity::Type::BlockQuote, 0, 3}});
-  check_fix_formatted_text("example.com", {{td::MessageEntity::Type::BlockQuote, 0, 11}}, "example.com",
-                           {{td::MessageEntity::Type::BlockQuote, 0, 11}, {td::MessageEntity::Type::Url, 0, 11}});
-  check_fix_formatted_text("example.com", {{td::MessageEntity::Type::Italic, 0, 11}}, "example.com",
-                           {{td::MessageEntity::Type::Url, 0, 11}, {td::MessageEntity::Type::Italic, 0, 11}});
-  check_fix_formatted_text("example.com", {{td::MessageEntity::Type::Italic, 0, 3}}, "example.com",
-                           {{td::MessageEntity::Type::Url, 0, 11}, {td::MessageEntity::Type::Italic, 0, 3}});
-  check_fix_formatted_text("example.com a", {{td::MessageEntity::Type::Italic, 0, 13}}, "example.com a",
-                           {{td::MessageEntity::Type::Url, 0, 11},
-                            {td::MessageEntity::Type::Italic, 0, 11},
-                            {td::MessageEntity::Type::Italic, 11, 2}});
-  check_fix_formatted_text("a example.com", {{td::MessageEntity::Type::Italic, 0, 13}}, "a example.com",
-                           {{td::MessageEntity::Type::Italic, 0, 2},
-                            {td::MessageEntity::Type::Url, 2, 11},
-                            {td::MessageEntity::Type::Italic, 2, 11}});
-
-  for (size_t test_n = 0; test_n < 100000; test_n++) {
-    bool is_url = td::Random::fast_bool();
-    td::int32 url_offset = 0;
-    td::int32 url_end = 0;
-    if (is_url) {
-      str = td::string(td::Random::fast(1, 5), 'a') + ":example.com:" + td::string(td::Random::fast(1, 5), 'a');
-      url_offset = static_cast<td::int32>(str.find('e'));
-      url_end = url_offset + 11;
-    } else {
-      str = td::string(td::Random::fast(1, 20), 'a');
-    }
-
-    auto n = td::Random::fast(1, 20);
-    td::vector<td::MessageEntity> entities;
-    for (int j = 0; j < n; j++) {
-      td::int32 type = td::Random::fast(4, static_cast<int>(td::MessageEntity::Type::Size) - 1);
-      td::int32 offset = td::Random::fast(0, static_cast<int>(str.size()) - 1);
-      auto max_length = static_cast<int>(str.size() - offset);
-      if ((test_n & 1) != 0 && max_length > 4) {
-        max_length = 4;
-      }
-      td::int32 length = td::Random::fast(0, max_length);
-      entities.emplace_back(static_cast<td::MessageEntity::Type>(type), offset, length);
-    }
-
-    auto get_type_mask = [](std::size_t length, const td::vector<td::MessageEntity> &entities) {
-      td::vector<td::int32> result(length);
-      for (auto &entity : entities) {
-        for (auto pos = 0; pos < entity.length; pos++) {
-          result[entity.offset + pos] |= (1 << static_cast<td::int32>(entity.type));
-        }
-      }
-      return result;
-    };
-    auto old_type_mask = get_type_mask(str.size(), entities);
-    ASSERT_TRUE(td::fix_formatted_text(str, entities, false, false, true, true, false).is_ok());
-    auto new_type_mask = get_type_mask(str.size(), entities);
-    auto splittable_mask = (1 << 5) | (1 << 6) | (1 << 14) | (1 << 15) | (1 << 19);
-    auto pre_mask = (1 << 7) | (1 << 8) | (1 << 9);
-    for (std::size_t pos = 0; pos < str.size(); pos++) {
-      if ((new_type_mask[pos] & pre_mask) != 0) {
-        ASSERT_EQ(0, new_type_mask[pos] & splittable_mask);
-      } else {
-        ASSERT_EQ(old_type_mask[pos] & splittable_mask, new_type_mask[pos] & splittable_mask);
-      }
-    }
-    bool keep_url = is_url;
-    td::MessageEntity url_entity(td::MessageEntity::Type::Url, url_offset, url_end - url_offset);
-    for (auto &entity : entities) {
-      if (entity == url_entity) {
-        continue;
-      }
-      td::int32 offset = entity.offset;
-      td::int32 end = offset + entity.length;
-
-      if (keep_url && ((1 << static_cast<td::int32>(entity.type)) & splittable_mask) == 0 &&
-          !(end <= url_offset || url_end <= offset)) {
-        keep_url = ((entity.type == td::MessageEntity::Type::BlockQuote ||
-                     entity.type == td::MessageEntity::Type::ExpandableBlockQuote) &&
-                    offset <= url_offset && url_end <= end);
-      }
-    }
-    ASSERT_EQ(keep_url, std::count(entities.begin(), entities.end(), url_entity) == 1);
-
-    for (size_t i = 0; i < entities.size(); i++) {
-      auto type_mask = 1 << static_cast<td::int32>(entities[i].type);
-      for (size_t j = i + 1; j < entities.size(); j++) {
-        // sorted
-        ASSERT_TRUE(entities[j].offset > entities[i].offset ||
-                    (entities[j].offset == entities[i].offset && entities[j].length <= entities[i].length));
-
-        // not intersecting
-        ASSERT_TRUE(entities[j].offset >= entities[i].offset + entities[i].length ||
-                    entities[j].offset + entities[j].length <= entities[i].offset + entities[i].length);
-
-        if (entities[j].offset < entities[i].offset + entities[i].length) {  // if nested
-          // types are different
-          ASSERT_TRUE(entities[j].type != entities[i].type);
-
-          // pre can't contain other entities
-          ASSERT_TRUE((type_mask & pre_mask) == 0);
-
-          if ((type_mask & splittable_mask) == 0 && entities[i].type != td::MessageEntity::Type::BlockQuote &&
-              entities[i].type != td::MessageEntity::Type::ExpandableBlockQuote) {
-            // continuous entities can contain only splittable entities
-            ASSERT_TRUE(((1 << static_cast<td::int32>(entities[j].type)) & splittable_mask) != 0);
-          }
-        }
-      }
-    }
-  }
-
-  check_fix_formatted_text(
-      "\xe2\x80\x8f\xe2\x80\x8f  \xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8c \xe2\x80\x8f\xe2\x80\x8e "
-      "\xe2\x80\x8f a",
-      {},
-      "\xe2\x80\x8c\xe2\x80\x8f  \xe2\x80\x8c\xe2\x80\x8c\xe2\x80\x8e\xe2\x80\x8c \xe2\x80\x8c\xe2\x80\x8e "
-      "\xe2\x80\x8f a",
-      {});
-  check_fix_formatted_text(
-      "\xe2\x80\x8f\xe2\x80\x8f  \xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8c \xe2\x80\x8f\xe2\x80\x8e "
-      "\xe2\x80\x8f",
-      {}, false, false, false, true);
-  check_fix_formatted_text(
-      "\xe2\x80\x8f\xe2\x80\x8f  \xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8c \xe2\x80\x8f\xe2\x80\x8e "
-      "\xe2\x80\x8f",
-      {}, "", {});
-}
-
-TEST(MessageEntities, is_visible_url) {
-  td::string str = "a telegram.org telegran.org telegrao.org telegram.orc telegrap.org c";
-  td::vector<td::MessageEntity> entities;
-  entities.emplace_back(td::MessageEntity::Type::TextUrl, 0, 1, "telegrab.org");
-  entities.emplace_back(td::MessageEntity::Type::TextUrl, static_cast<td::int32>(str.size()) - 1, 1, "telegrax.org");
-  td::fix_formatted_text(str, entities, false, false, false, false, true).ensure();
-  td::FormattedText text{std::move(str), std::move(entities)};
-  ASSERT_EQ(td::get_first_url(text), "telegrab.org");
-  ASSERT_TRUE(!td::is_visible_url(text, "telegrab.org"));
-  ASSERT_TRUE(td::is_visible_url(text, "telegram.org"));
-  ASSERT_TRUE(td::is_visible_url(text, "telegran.org"));
-  ASSERT_TRUE(td::is_visible_url(text, "telegrao.org"));
-  ASSERT_TRUE(!td::is_visible_url(text, "telegram.orc"));
-  ASSERT_TRUE(td::is_visible_url(text, "telegrap.org"));
-  ASSERT_TRUE(!td::is_visible_url(text, "telegraf.org"));
-  ASSERT_TRUE(!td::is_visible_url(text, "telegrax.org"));
-}
-
-static void check_parse_html(td::string text, const td::string &result, const td::vector<td::MessageEntity> &entities) {
-  auto r_entities = td::parse_html(text);
-  ASSERT_TRUE(r_entities.is_ok());
-  ASSERT_EQ(entities, r_entities.ok());
-  ASSERT_STREQ(result, text);
-}
-
-static void check_parse_html(td::string text, td::Slice error_message) {
-  auto r_entities = td::parse_html(text);
-  ASSERT_TRUE(r_entities.is_error());
-  ASSERT_EQ(400, r_entities.error().code());
-  ASSERT_STREQ(error_message, r_entities.error().message());
-}
-
-TEST(MessageEntities, parse_html) {
-  td::string invalid_surrogate_pair_error_message =
-      "Text contains invalid Unicode characters after decoding HTML entities, check for unmatched surrogate code units";
-  check_parse_html("&#57311;", invalid_surrogate_pair_error_message);
-  check_parse_html("&#xDFDF;", invalid_surrogate_pair_error_message);
-  check_parse_html("&#xDFDF", invalid_surrogate_pair_error_message);
-  check_parse_html("🏟 🏟&lt;<abacaba", "Unclosed start tag at byte offset 13");
-  check_parse_html("🏟 🏟&lt;<abac aba>", "Unsupported start tag \"abac\" at byte offset 13");
-  check_parse_html("🏟 🏟&lt;<abac>", "Unsupported start tag \"abac\" at byte offset 13");
-  check_parse_html("🏟 🏟&lt;<i   =aba>", "Empty attribute name in the tag \"i\" at byte offset 13");
-  check_parse_html("🏟 🏟&lt;<i    aba>", "Can't find end tag corresponding to start tag \"i\"");
-  check_parse_html("🏟 🏟&lt;<i    aba  =  ", "Unclosed start tag \"i\" at byte offset 13");
-  check_parse_html("🏟 🏟&lt;<i    aba  =  190azAz-.,", "Unexpected end of name token at byte offset 27");
-  check_parse_html("🏟 🏟&lt;<i    aba  =  \"&lt;&gt;&quot;>", "Unclosed start tag at byte offset 13");
-  check_parse_html("🏟 🏟&lt;<i    aba  =  \'&lt;&gt;&quot;>", "Unclosed start tag at byte offset 13");
-  check_parse_html("🏟 🏟&lt;</", "Unexpected end tag at byte offset 13");
-  check_parse_html("🏟 🏟&lt;<b></b></", "Unexpected end tag at byte offset 20");
-  check_parse_html("🏟 🏟&lt;<i>a</i   ", "Unclosed end tag at byte offset 17");
-  check_parse_html("🏟 🏟&lt;<i>a</em   >", "Unmatched end tag at byte offset 17, expected \"</i>\", found \"</em>\"");
-
-  check_parse_html("", "", {});
-  check_parse_html("➡️ ➡️", "➡️ ➡️", {});
-  check_parse_html("&ge;&lt;&gt;&amp;&quot;&laquo;&raquo;&#12345678;", "&ge;<>&\"&laquo;&raquo;&#12345678;", {});
-  check_parse_html("&Or;", "&Or;", {});
-  check_parse_html("➡️ ➡️<i>➡️ ➡️</i>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Italic, 5, 5}});
-  check_parse_html("➡️ ➡️<em>➡️ ➡️</em>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Italic, 5, 5}});
-  check_parse_html("➡️ ➡️<b>➡️ ➡️</b>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Bold, 5, 5}});
-  check_parse_html("➡️ ➡️<strong>➡️ ➡️</strong>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Bold, 5, 5}});
-  check_parse_html("➡️ ➡️<u>➡️ ➡️</u>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Underline, 5, 5}});
-  check_parse_html("➡️ ➡️<ins>➡️ ➡️</ins>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Underline, 5, 5}});
-  check_parse_html("➡️ ➡️<s>➡️ ➡️</s>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Strikethrough, 5, 5}});
-  check_parse_html("➡️ ➡️<strike>➡️ ➡️</strike>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Strikethrough, 5, 5}});
-  check_parse_html("➡️ ➡️<del>➡️ ➡️</del>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Strikethrough, 5, 5}});
-  check_parse_html("➡️ ➡️<blockquote>➡️ ➡️</blockquote>", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::BlockQuote, 5, 5}});
-  check_parse_html("➡️ ➡️<i>➡️ ➡️</i><b>➡️ ➡️</b>", "➡️ ➡️➡️ ➡️➡️ ➡️",
-                   {{td::MessageEntity::Type::Italic, 5, 5}, {td::MessageEntity::Type::Bold, 10, 5}});
-  check_parse_html("🏟 🏟<i>🏟 &lt🏟</i>", "🏟 🏟🏟 <🏟", {{td::MessageEntity::Type::Italic, 5, 6}});
-  check_parse_html("🏟 🏟<i>🏟 &gt;<b aba   =   caba>&lt🏟</b></i>", "🏟 🏟🏟 ><🏟",
-                   {{td::MessageEntity::Type::Italic, 5, 7}, {td::MessageEntity::Type::Bold, 9, 3}});
-  check_parse_html("🏟 🏟&lt;<i    aba  =  190azAz-.   >a</i>", "🏟 🏟<a", {{td::MessageEntity::Type::Italic, 6, 1}});
-  check_parse_html("🏟 🏟&lt;<i    aba  =  190azAz-.>a</i>", "🏟 🏟<a", {{td::MessageEntity::Type::Italic, 6, 1}});
-  check_parse_html("🏟 🏟&lt;<i    aba  =  \"&lt;&gt;&quot;\">a</i>", "🏟 🏟<a",
-                   {{td::MessageEntity::Type::Italic, 6, 1}});
-  check_parse_html("🏟 🏟&lt;<i    aba  =  '&lt;&gt;&quot;'>a</i>", "🏟 🏟<a",
-                   {{td::MessageEntity::Type::Italic, 6, 1}});
-  check_parse_html("🏟 🏟&lt;<i    aba  =  '&lt;&gt;&quot;'>a</>", "🏟 🏟<a",
-                   {{td::MessageEntity::Type::Italic, 6, 1}});
-  check_parse_html("🏟 🏟&lt;<i>🏟 🏟&lt;</>", "🏟 🏟<🏟 🏟<", {{td::MessageEntity::Type::Italic, 6, 6}});
-  check_parse_html("🏟 🏟&lt;<i>a</    >", "🏟 🏟<a", {{td::MessageEntity::Type::Italic, 6, 1}});
-  check_parse_html("🏟 🏟&lt;<i>a</i   >", "🏟 🏟<a", {{td::MessageEntity::Type::Italic, 6, 1}});
-  check_parse_html("🏟 🏟&lt;<b></b>", "🏟 🏟<", {});
-  check_parse_html("<i>\t</i>", "\t", {{td::MessageEntity::Type::Italic, 0, 1}});
-  check_parse_html("<i>\r</i>", "\r", {{td::MessageEntity::Type::Italic, 0, 1}});
-  check_parse_html("<i>\n</i>", "\n", {{td::MessageEntity::Type::Italic, 0, 1}});
-  check_parse_html("➡️ ➡️<span class = \"tg-spoiler\">➡️ ➡️</span><b>➡️ ➡️</b>", "➡️ ➡️➡️ ➡️➡️ ➡️",
-                   {{td::MessageEntity::Type::Spoiler, 5, 5}, {td::MessageEntity::Type::Bold, 10, 5}});
-  check_parse_html("🏟 🏟<span class=\"tg-spoiler\">🏟 &lt🏟</span>", "🏟 🏟🏟 <🏟",
-                   {{td::MessageEntity::Type::Spoiler, 5, 6}});
-  check_parse_html("🏟 🏟<span class=\"tg-spoiler\">🏟 &gt;<b aba   =   caba>&lt🏟</b></span>", "🏟 🏟🏟 ><🏟",
-                   {{td::MessageEntity::Type::Spoiler, 5, 7}, {td::MessageEntity::Type::Bold, 9, 3}});
-  check_parse_html("➡️ ➡️<tg-spoiler>➡️ ➡️</tg-spoiler><b>➡️ ➡️</b>", "➡️ ➡️➡️ ➡️➡️ ➡️",
-                   {{td::MessageEntity::Type::Spoiler, 5, 5}, {td::MessageEntity::Type::Bold, 10, 5}});
-  check_parse_html("🏟 🏟<tg-spoiler>🏟 &lt🏟</tg-spoiler>", "🏟 🏟🏟 <🏟", {{td::MessageEntity::Type::Spoiler, 5, 6}});
-  check_parse_html("🏟 🏟<tg-spoiler>🏟 &gt;<b aba   =   caba>&lt🏟</b></tg-spoiler>", "🏟 🏟🏟 ><🏟",
-                   {{td::MessageEntity::Type::Spoiler, 5, 7}, {td::MessageEntity::Type::Bold, 9, 3}});
-  check_parse_html("<a href=telegram.org>\t</a>", "\t",
-                   {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}});
-  check_parse_html("<a href=telegram.org>\r</a>", "\r",
-                   {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}});
-  check_parse_html("<a href=telegram.org>\n</a>", "\n",
-                   {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}});
-  check_parse_html("<code><i><b> </b></i></code><i><b><code> </code></b></i>", "  ",
-                   {{td::MessageEntity::Type::Code, 0, 1},
-                    {td::MessageEntity::Type::Bold, 0, 1},
-                    {td::MessageEntity::Type::Italic, 0, 1},
-                    {td::MessageEntity::Type::Code, 1, 1},
-                    {td::MessageEntity::Type::Bold, 1, 1},
-                    {td::MessageEntity::Type::Italic, 1, 1}});
-  check_parse_html("<i><b> </b> <code> </code></i>", "   ",
-                   {{td::MessageEntity::Type::Italic, 0, 3},
-                    {td::MessageEntity::Type::Bold, 0, 1},
-                    {td::MessageEntity::Type::Code, 2, 1}});
-  check_parse_html("<a href=telegram.org> </a>", " ",
-                   {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}});
-  check_parse_html("<a href  =\"telegram.org\"   > </a>", " ",
-                   {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}});
-  check_parse_html("<a   href=  'telegram.org'   > </a>", " ",
-                   {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}});
-  check_parse_html("<a   href=  'telegram.org?&lt;'   > </a>", " ",
-                   {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/?<"}});
-  check_parse_html("<a> </a>", " ", {});
-  check_parse_html("<a>telegram.org </a>", "telegram.org ", {});
-  check_parse_html("<a>telegram.org</a>", "telegram.org",
-                   {{td::MessageEntity::Type::TextUrl, 0, 12, "http://telegram.org/"}});
-  check_parse_html("<a>https://telegram.org/asdsa?asdasdwe#12e3we</a>", "https://telegram.org/asdsa?asdasdwe#12e3we",
-                   {{td::MessageEntity::Type::TextUrl, 0, 42, "https://telegram.org/asdsa?asdasdwe#12e3we"}});
-  check_parse_html("🏟 🏟&lt;<pre  >🏟 🏟&lt;</>", "🏟 🏟<🏟 🏟<", {{td::MessageEntity::Type::Pre, 6, 6}});
-  check_parse_html("🏟 🏟&lt;<code >🏟 🏟&lt;</>", "🏟 🏟<🏟 🏟<", {{td::MessageEntity::Type::Code, 6, 6}});
-  check_parse_html("🏟 🏟&lt;<pre><code>🏟 🏟&lt;</code></>", "🏟 🏟<🏟 🏟<",
-                   {{td::MessageEntity::Type::Pre, 6, 6}, {td::MessageEntity::Type::Code, 6, 6}});
-  check_parse_html("🏟 🏟&lt;<pre><code class=\"language-\">🏟 🏟&lt;</code></>", "🏟 🏟<🏟 🏟<",
-                   {{td::MessageEntity::Type::Pre, 6, 6}, {td::MessageEntity::Type::Code, 6, 6}});
-  check_parse_html("🏟 🏟&lt;<pre><code class=\"language-fift\">🏟 🏟&lt;</></>", "🏟 🏟<🏟 🏟<",
-                   {{td::MessageEntity::Type::PreCode, 6, 6, "fift"}});
-  check_parse_html("🏟 🏟&lt;<code class=\"language-fift\"><pre>🏟 🏟&lt;</></>", "🏟 🏟<🏟 🏟<",
-                   {{td::MessageEntity::Type::PreCode, 6, 6, "fift"}});
-  check_parse_html("🏟 🏟&lt;<pre><code class=\"language-fift\">🏟 🏟&lt;</> </>", "🏟 🏟<🏟 🏟< ",
-                   {{td::MessageEntity::Type::Pre, 6, 7}, {td::MessageEntity::Type::Code, 6, 6}});
-  check_parse_html("🏟 🏟&lt;<pre> <code class=\"language-fift\">🏟 🏟&lt;</></>", "🏟 🏟< 🏟 🏟<",
-                   {{td::MessageEntity::Type::Pre, 6, 7}, {td::MessageEntity::Type::Code, 7, 6}});
-  check_parse_html("➡️ ➡️<tg-emoji emoji-id = \"12345\">➡️ ➡️</tg-emoji><b>➡️ ➡️</b>", "➡️ ➡️➡️ ➡️➡️ ➡️",
-                   {{td::MessageEntity::Type::CustomEmoji, 5, 5, td::CustomEmojiId(static_cast<td::int64>(12345))},
-                    {td::MessageEntity::Type::Bold, 10, 5}});
-  check_parse_html("🏟 🏟<tg-emoji emoji-id=\"54321\">🏟 &lt🏟</tg-emoji>", "🏟 🏟🏟 <🏟",
-                   {{td::MessageEntity::Type::CustomEmoji, 5, 6, td::CustomEmojiId(static_cast<td::int64>(54321))}});
-  check_parse_html("🏟 🏟<b aba   =   caba><tg-emoji emoji-id=\"1\">🏟</tg-emoji>1</b>", "🏟 🏟🏟1",
-                   {{td::MessageEntity::Type::Bold, 5, 3},
-                    {td::MessageEntity::Type::CustomEmoji, 5, 2, td::CustomEmojiId(static_cast<td::int64>(1))}});
-  check_parse_html("<blockquote   cite=\"\" askdlbas nasjdbaj nj12b3>a&lt;<pre  >b;</></>", "a<b;",
-                   {{td::MessageEntity::Type::BlockQuote, 0, 4}, {td::MessageEntity::Type::Pre, 2, 2}});
-  check_parse_html("<blockquote   expandable>a&lt;<pre  >b;</></>", "a<b;",
-                   {{td::MessageEntity::Type::ExpandableBlockQuote, 0, 4}, {td::MessageEntity::Type::Pre, 2, 2}});
-  check_parse_html("<blockquote   expandable   asd>a&lt;<pre  >b;</></>", "a<b;",
-                   {{td::MessageEntity::Type::ExpandableBlockQuote, 0, 4}, {td::MessageEntity::Type::Pre, 2, 2}});
-  check_parse_html("<blockquote   expandable=false>a&lt;<pre  >b;</></>", "a<b;",
-                   {{td::MessageEntity::Type::ExpandableBlockQuote, 0, 4}, {td::MessageEntity::Type::Pre, 2, 2}});
-}
-
-static void check_parse_markdown(td::string text, const td::string &result,
-                                 const td::vector<td::MessageEntity> &entities) {
-  auto r_entities = td::parse_markdown_v2(text);
-  if (r_entities.is_error()) {
-    LOG(ERROR) << r_entities.error();
-  }
-  ASSERT_TRUE(r_entities.is_ok());
-  ASSERT_EQ(entities, r_entities.ok());
-  ASSERT_STREQ(result, text);
-}
-
-static void check_parse_markdown(td::string text, td::Slice error_message) {
-  auto r_entities = td::parse_markdown_v2(text);
-  ASSERT_TRUE(r_entities.is_error());
-  ASSERT_EQ(400, r_entities.error().code());
-  ASSERT_STREQ(error_message, r_entities.error().message());
-}
-
-TEST(MessageEntities, parse_markdown) {
-  td::Slice reserved_characters("]()>#+-=|{}.!");
-  td::Slice begin_characters("_*[~`>");
-  for (char c = 1; c < 126; c++) {
-    if (begin_characters.find(c) != td::Slice::npos) {
-      continue;
-    }
-
-    td::string text(1, c);
-    if (reserved_characters.find(c) == td::Slice::npos) {
-      check_parse_markdown(text, text, {});
-    } else {
-      check_parse_markdown(
-          text, PSLICE() << "Character '" << c << "' is reserved and must be escaped with the preceding '\\'");
-
-      td::string escaped_text = "\\" + text;
-      check_parse_markdown(escaped_text, text, {});
-    }
-  }
-
-  check_parse_markdown("🏟 🏟_abacaba", "Can't find end of Italic entity at byte offset 9");
-  check_parse_markdown("🏟 🏟_abac * asd ", "Can't find end of Bold entity at byte offset 15");
-  check_parse_markdown("🏟 🏟_abac * asd _", "Can't find end of Italic entity at byte offset 21");
-  check_parse_markdown("🏟 🏟`", "Can't find end of Code entity at byte offset 9");
-  check_parse_markdown("🏟 🏟```", "Can't find end of Pre entity at byte offset 9");
-  check_parse_markdown("🏟 🏟```a", "Can't find end of Pre entity at byte offset 9");
-  check_parse_markdown("🏟 🏟```a ", "Can't find end of PreCode entity at byte offset 9");
-  check_parse_markdown("🏟 🏟__🏟 🏟_", "Can't find end of Italic entity at byte offset 20");
-  check_parse_markdown("🏟 🏟_🏟 🏟__", "Can't find end of Underline entity at byte offset 19");
-  check_parse_markdown("🏟 🏟```🏟 🏟`", "Can't find end of Code entity at byte offset 21");
-  check_parse_markdown("🏟 🏟```🏟 🏟_", "Can't find end of PreCode entity at byte offset 9");
-  check_parse_markdown("🏟 🏟```🏟 🏟\\`", "Can't find end of PreCode entity at byte offset 9");
-  check_parse_markdown("[telegram\\.org](asd\\)", "Can't find end of a URL at byte offset 16");
-  check_parse_markdown("[telegram\\.org](", "Can't find end of a URL at byte offset 16");
-  check_parse_markdown("[telegram\\.org](asd", "Can't find end of a URL at byte offset 16");
-  check_parse_markdown("🏟 🏟__🏟 _🏟___", "Can't find end of Italic entity at byte offset 23");
-  check_parse_markdown("🏟 🏟__", "Can't find end of Underline entity at byte offset 9");
-  check_parse_markdown("🏟 🏟||test\\|", "Can't find end of Spoiler entity at byte offset 9");
-  check_parse_markdown("🏟 🏟!", "Character '!' is reserved and must be escaped with the preceding '\\'");
-  check_parse_markdown("🏟 🏟>", "Character '>' is reserved and must be escaped with the preceding '\\'");
-  check_parse_markdown("🏟 🏟![", "Can't find end of CustomEmoji entity at byte offset 9");
-  check_parse_markdown("🏟 🏟![👍", "Can't find end of CustomEmoji entity at byte offset 9");
-  check_parse_markdown("🏟 🏟![👍]", "Custom emoji entity must contain a tg://emoji URL");
-  check_parse_markdown("🏟 🏟![👍](tg://emoji?id=1234", "Can't find end of a custom emoji URL at byte offset 17");
-  check_parse_markdown("🏟 🏟![👍](t://emoji?id=1234)", "Custom emoji URL must have scheme tg");
-  check_parse_markdown("🏟 🏟![👍](tg:emojis?id=1234)", "Custom emoji URL must have host \"emoji\"");
-  check_parse_markdown("🏟 🏟![👍](tg://emoji#test)", "Custom emoji URL must have an emoji identifier");
-  check_parse_markdown("🏟 🏟![👍](tg://emoji?test=1#&id=25)", "Custom emoji URL must have an emoji identifier");
-  check_parse_markdown("🏟 🏟![👍](tg://emoji?test=1231&id=025)", "Invalid custom emoji identifier specified");
-  check_parse_markdown(">*b\n>ld \n>bo\nld*\nasd\ndef", "Can't find end of Bold entity at byte offset 1");
-  check_parse_markdown(">\n*a*>2", "Character '>' is reserved and must be escaped with the preceding '\\'");
-  check_parse_markdown(">asd\n>q||e||w||\n||asdad", "Can't find end of Spoiler entity at byte offset 16");
-  check_parse_markdown(">asd\n>q||ew\n||asdad", "Can't find end of Spoiler entity at byte offset 7");
-  check_parse_markdown(">asd\n>q||e||w__\n||asdad", "Can't find end of Underline entity at byte offset 13");
-  check_parse_markdown(">asd\n>q||e||w||a\n||asdad", "Can't find end of Spoiler entity at byte offset 13");
-
-  check_parse_markdown("", "", {});
-  check_parse_markdown("\\\\", "\\", {});
-  check_parse_markdown("\\\\\\", "\\\\", {});
-  check_parse_markdown("\\\\\\\\\\_\\*\\`", "\\\\_*`", {});
-  check_parse_markdown("➡️ ➡️", "➡️ ➡️", {});
-  check_parse_markdown("🏟 🏟``", "🏟 🏟", {});
-  check_parse_markdown("🏟 🏟_abac \\* asd _", "🏟 🏟abac * asd ", {{td::MessageEntity::Type::Italic, 5, 11}});
-  check_parse_markdown("🏟 \\.🏟_🏟\\. 🏟_", "🏟 .🏟🏟. 🏟", {{td::MessageEntity::Type::Italic, 6, 6}});
-  check_parse_markdown("\\\\\\a\\b\\c\\d\\e\\f\\1\\2\\3\\4\\➡️\\", "\\abcdef1234\\➡️\\", {});
-  check_parse_markdown("➡️ ➡️_➡️ ➡️_", "➡️ ➡️➡️ ➡️", {{td::MessageEntity::Type::Italic, 5, 5}});
-  check_parse_markdown("➡️ ➡️_➡️ ➡️_*➡️ ➡️*", "➡️ ➡️➡️ ➡️➡️ ➡️",
-                       {{td::MessageEntity::Type::Italic, 5, 5}, {td::MessageEntity::Type::Bold, 10, 5}});
-  check_parse_markdown("🏟 🏟_🏟 \\.🏟_", "🏟 🏟🏟 .🏟", {{td::MessageEntity::Type::Italic, 5, 6}});
-  check_parse_markdown("🏟 🏟_🏟 *🏟*_", "🏟 🏟🏟 🏟",
-                       {{td::MessageEntity::Type::Italic, 5, 5}, {td::MessageEntity::Type::Bold, 8, 2}});
-  check_parse_markdown("🏟 🏟_🏟 __🏟___", "🏟 🏟🏟 🏟",
-                       {{td::MessageEntity::Type::Italic, 5, 5}, {td::MessageEntity::Type::Underline, 8, 2}});
-  check_parse_markdown("🏟 🏟__🏟 _🏟_ __", "🏟 🏟🏟 🏟 ",
-                       {{td::MessageEntity::Type::Underline, 5, 6}, {td::MessageEntity::Type::Italic, 8, 2}});
-  check_parse_markdown("🏟 🏟__🏟 _🏟_\\___", "🏟 🏟🏟 🏟_",
-                       {{td::MessageEntity::Type::Underline, 5, 6}, {td::MessageEntity::Type::Italic, 8, 2}});
-  check_parse_markdown("🏟 🏟`🏟 🏟```", "🏟 🏟🏟 🏟", {{td::MessageEntity::Type::Code, 5, 5}});
-  check_parse_markdown("🏟 🏟```🏟 🏟```", "🏟 🏟 🏟", {{td::MessageEntity::Type::PreCode, 5, 3, "🏟"}});
-  check_parse_markdown("🏟 🏟```🏟\n🏟```", "🏟 🏟🏟", {{td::MessageEntity::Type::PreCode, 5, 2, "🏟"}});
-  check_parse_markdown("🏟 🏟```🏟\r🏟```", "🏟 🏟🏟", {{td::MessageEntity::Type::PreCode, 5, 2, "🏟"}});
-  check_parse_markdown("🏟 🏟```🏟\n\r🏟```", "🏟 🏟🏟", {{td::MessageEntity::Type::PreCode, 5, 2, "🏟"}});
-  check_parse_markdown("🏟 🏟```🏟\r\n🏟```", "🏟 🏟🏟", {{td::MessageEntity::Type::PreCode, 5, 2, "🏟"}});
-  check_parse_markdown("🏟 🏟```🏟\n\n🏟```", "🏟 🏟\n🏟", {{td::MessageEntity::Type::PreCode, 5, 3, "🏟"}});
-  check_parse_markdown("🏟 🏟```🏟\r\r🏟```", "🏟 🏟\r🏟", {{td::MessageEntity::Type::PreCode, 5, 3, "🏟"}});
-  check_parse_markdown("🏟 🏟```🏟 \\\\\\`🏟```", "🏟 🏟 \\`🏟", {{td::MessageEntity::Type::PreCode, 5, 5, "🏟"}});
-  check_parse_markdown("🏟 🏟**", "🏟 🏟", {});
-  check_parse_markdown("||test||", "test", {{td::MessageEntity::Type::Spoiler, 0, 4}});
-  check_parse_markdown("🏟 🏟``", "🏟 🏟", {});
-  check_parse_markdown("🏟 🏟``````", "🏟 🏟", {});
-  check_parse_markdown("🏟 🏟____", "🏟 🏟", {});
-  check_parse_markdown("`_* *_`__*` `*__", "_* *_ ",
-                       {{td::MessageEntity::Type::Code, 0, 5},
-                        {td::MessageEntity::Type::Code, 5, 1},
-                        {td::MessageEntity::Type::Bold, 5, 1},
-                        {td::MessageEntity::Type::Underline, 5, 1}});
-  check_parse_markdown("_* * ` `_", "   ",
-                       {{td::MessageEntity::Type::Italic, 0, 3},
-                        {td::MessageEntity::Type::Bold, 0, 1},
-                        {td::MessageEntity::Type::Code, 2, 1}});
-  check_parse_markdown("[](telegram.org)", "", {});
-  check_parse_markdown("[ ](telegram.org)", " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://telegram.org/"}});
-  check_parse_markdown("[ ](as)", " ", {});
-  check_parse_markdown("[telegram\\.org]", "telegram.org",
-                       {{td::MessageEntity::Type::TextUrl, 0, 12, "http://telegram.org/"}});
-  check_parse_markdown("[telegram\\.org]a", "telegram.orga",
-                       {{td::MessageEntity::Type::TextUrl, 0, 12, "http://telegram.org/"}});
-  check_parse_markdown("[telegram\\.org](telegram.dog)", "telegram.org",
-                       {{td::MessageEntity::Type::TextUrl, 0, 12, "http://telegram.dog/"}});
-  check_parse_markdown("[telegram\\.org](https://telegram.dog?)", "telegram.org",
-                       {{td::MessageEntity::Type::TextUrl, 0, 12, "https://telegram.dog/?"}});
-  check_parse_markdown("[telegram\\.org](https://telegram.dog?\\\\\\()", "telegram.org",
-                       {{td::MessageEntity::Type::TextUrl, 0, 12, "https://telegram.dog/?\\("}});
-  check_parse_markdown("[telegram\\.org]()", "telegram.org", {});
-  check_parse_markdown("[telegram\\.org](asdasd)", "telegram.org", {});
-  check_parse_markdown("[telegram\\.org](tg:user?id=123456)", "telegram.org",
-                       {{0, 12, td::UserId(static_cast<td::int64>(123456))}});
-  check_parse_markdown("🏟 🏟![👍](TG://EMoJI/?test=1231&id=25#id=32)a", "🏟 🏟👍a",
-                       {{td::MessageEntity::Type::CustomEmoji, 5, 2, td::CustomEmojiId(static_cast<td::int64>(25))}});
-  check_parse_markdown("> \n> \n>", " \n \n", {{td::MessageEntity::Type::BlockQuote, 0, 4}});
-  check_parse_markdown("> \\>\n \\> \n>", " >\n > \n", {{td::MessageEntity::Type::BlockQuote, 0, 3}});
-  check_parse_markdown("abc\n> \n> \n>\ndef", "abc\n \n \n\ndef", {{td::MessageEntity::Type::BlockQuote, 4, 5}});
-  check_parse_markdown(">", "", {});
-  check_parse_markdown(">a", "a", {{td::MessageEntity::Type::BlockQuote, 0, 1}});
-  check_parse_markdown("\r>a", "\ra", {{td::MessageEntity::Type::BlockQuote, 1, 1}});
-  check_parse_markdown("\r\r>\r\ra\r\n\r", "\r\r\r\ra\r\n\r", {{td::MessageEntity::Type::BlockQuote, 2, 5}});
-  check_parse_markdown(
-      ">*bold _italic bold ~italic bold strikethrough ||italic bold strikethrough spoiler||~ __underline italic "
-      "bold___ bold*",
-      "bold italic bold italic bold strikethrough italic bold strikethrough spoiler underline italic bold bold",
-      {{td::MessageEntity::Type::BlockQuote, 0, 103},
-       {td::MessageEntity::Type::Bold, 0, 103},
-       {td::MessageEntity::Type::Italic, 5, 93},
-       {td::MessageEntity::Type::Strikethrough, 17, 59},
-       {td::MessageEntity::Type::Spoiler, 43, 33},
-       {td::MessageEntity::Type::Underline, 77, 21}});
-  check_parse_markdown(">*b\n>ld \n>bo\n>ld*\nasd\ndef", "b\nld \nbo\nld\nasd\ndef",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 12}, {td::MessageEntity::Type::Bold, 0, 11}});
-  check_parse_markdown("*a\n>b\n>ld \n>bo\n>ld\nasd*\ndef", "a\nb\nld \nbo\nld\nasd\ndef",
-                       {{td::MessageEntity::Type::Bold, 0, 17}, {td::MessageEntity::Type::BlockQuote, 2, 12}});
-  check_parse_markdown(">`b\n>ld \n>bo\nld`\n>asd\ndef", "b\n>ld \n>bo\nld\nasd\ndef",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 18}, {td::MessageEntity::Type::Code, 0, 13}});
-  check_parse_markdown("`>b\n>ld \n>bo\nld`\n>asd\ndef", ">b\n>ld \n>bo\nld\nasd\ndef",
-                       {{td::MessageEntity::Type::Code, 0, 14}, {td::MessageEntity::Type::BlockQuote, 15, 4}});
-  check_parse_markdown(">1", "1", {{td::MessageEntity::Type::BlockQuote, 0, 1}});
-  check_parse_markdown(">\n1", "\n1", {{td::MessageEntity::Type::BlockQuote, 0, 1}});
-  check_parse_markdown(">\n\r>2", "\n\r2",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 1}, {td::MessageEntity::Type::BlockQuote, 2, 1}});
-  check_parse_markdown(">\n**>2", "\n2",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 1}, {td::MessageEntity::Type::BlockQuote, 1, 1}});
-  check_parse_markdown(">**\n>2", "\n2", {{td::MessageEntity::Type::BlockQuote, 0, 2}});
-  // check_parse_markdown("*>abcd*", "abcd",
-  //                      {{td::MessageEntity::Type::BlockQuote, 0, 4}, {td::MessageEntity::Type::Bold, 0, 4}});
-  check_parse_markdown(">*abcd*", "abcd",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 4}, {td::MessageEntity::Type::Bold, 0, 4}});
-  // check_parse_markdown(">*abcd\n*", "abcd\n",
-  //                      {{td::MessageEntity::Type::BlockQuote, 0, 5}, {td::MessageEntity::Type::Bold, 0, 5}});
-  check_parse_markdown(">*abcd*\n", "abcd\n",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 5}, {td::MessageEntity::Type::Bold, 0, 4}});
-  check_parse_markdown("*>abcd\n*", "abcd\n",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 5}, {td::MessageEntity::Type::Bold, 0, 5}});
-  check_parse_markdown("abc\n>def\n>def\n\r>ghi2\njkl", "abc\ndef\ndef\n\rghi2\njkl",
-                       {{td::MessageEntity::Type::BlockQuote, 4, 8}, {td::MessageEntity::Type::BlockQuote, 13, 5}});
-  check_parse_markdown(
-      ">asd\n>q||e||w||\nasdad", "asd\nqew\nasdad",
-      {{td::MessageEntity::Type::ExpandableBlockQuote, 0, 8}, {td::MessageEntity::Type::Spoiler, 5, 1}});
-  check_parse_markdown(">asd\n>q||ew||\nasdad", "asd\nqew\nasdad",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 8}, {td::MessageEntity::Type::Spoiler, 5, 2}});
-  check_parse_markdown(
-      ">asd\r\n>q||e||w||\r\nasdad", "asd\r\nqew\r\nasdad",
-      {{td::MessageEntity::Type::ExpandableBlockQuote, 0, 10}, {td::MessageEntity::Type::Spoiler, 6, 1}});
-  check_parse_markdown(">asd\r\n>q||ew||\r\nasdad", "asd\r\nqew\r\nasdad",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 10}, {td::MessageEntity::Type::Spoiler, 6, 2}});
-  check_parse_markdown(
-      ">asd\r\n>q||e||w||\r\n", "asd\r\nqew\r\n",
-      {{td::MessageEntity::Type::ExpandableBlockQuote, 0, 10}, {td::MessageEntity::Type::Spoiler, 6, 1}});
-  check_parse_markdown(">asd\r\n>q||ew||\r\n", "asd\r\nqew\r\n",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 10}, {td::MessageEntity::Type::Spoiler, 6, 2}});
-  check_parse_markdown(
-      ">asd\r\n>q||e||w||", "asd\r\nqew",
-      {{td::MessageEntity::Type::ExpandableBlockQuote, 0, 8}, {td::MessageEntity::Type::Spoiler, 6, 1}});
-  check_parse_markdown(">asd\r\n>q||ew||", "asd\r\nqew",
-                       {{td::MessageEntity::Type::BlockQuote, 0, 8}, {td::MessageEntity::Type::Spoiler, 6, 2}});
-  check_parse_markdown(">||", "", {});
-}
-
-static void check_parse_markdown_v3(td::string text, td::vector<td::MessageEntity> entities,
-                                    const td::string &result_text, const td::vector<td::MessageEntity> &result_entities,
-                                    bool fix = false) {
-  auto parsed_text = td::parse_markdown_v3({std::move(text), std::move(entities)});
-  if (fix) {
-    ASSERT_TRUE(td::fix_formatted_text(parsed_text.text, parsed_text.entities, true, true, true, true, true).is_ok());
-  }
-  ASSERT_STREQ(result_text, parsed_text.text);
-  ASSERT_EQ(result_entities, parsed_text.entities);
-  if (fix) {
-    auto markdown_text = td::get_markdown_v3(parsed_text);
-    ASSERT_TRUE(parsed_text == markdown_text || parsed_text == td::parse_markdown_v3(markdown_text));
-  }
-}
-
-static void check_parse_markdown_v3(td::string text, const td::string &result_text,
-                                    const td::vector<td::MessageEntity> &result_entities, bool fix = false) {
-  check_parse_markdown_v3(std::move(text), td::vector<td::MessageEntity>(), result_text, result_entities, fix);
-}
-
-TEST(MessageEntities, parse_markdown_v3) {
-  check_parse_markdown_v3("🏟````🏟``🏟`aba🏟```c🏟`aba🏟 daba🏟```c🏟`aba🏟```🏟 `🏟``🏟```",
-                          "🏟````🏟``🏟aba🏟```c🏟aba🏟 daba🏟c🏟`aba🏟🏟 `🏟``🏟```",
-                          {{td::MessageEntity::Type::Code, 12, 11}, {td::MessageEntity::Type::Pre, 35, 9}});
-  check_parse_markdown_v3("🏟````🏟``🏟`aba🏟```c🏟`aba🏟 daba🏟```c🏟`aba🏟🏟```🏟 `🏟``🏟```",
-                          {{td::MessageEntity::Type::Italic, 12, 1},
-                           {td::MessageEntity::Type::Italic, 44, 1},
-                           {td::MessageEntity::Type::Bold, 45, 1},
-                           {td::MessageEntity::Type::Bold, 49, 2}},
-                          "🏟````🏟``🏟`aba🏟c🏟`aba🏟 daba🏟c🏟`aba🏟🏟🏟 `🏟``🏟",
-                          {{td::MessageEntity::Type::Italic, 12, 1},
-                           {td::MessageEntity::Type::Pre, 18, 16},
-                           {td::MessageEntity::Type::Italic, 38, 1},
-                           {td::MessageEntity::Type::Bold, 39, 1},
-                           {td::MessageEntity::Type::Bold, 43, 2},
-                           {td::MessageEntity::Type::Pre, 45, 10}});
-  check_parse_markdown_v3("` `", " ", {{td::MessageEntity::Type::Code, 0, 1}});
-  check_parse_markdown_v3("`\n`", "\n", {{td::MessageEntity::Type::Code, 0, 1}});
-  check_parse_markdown_v3("` `a", " a", {{td::MessageEntity::Type::Code, 0, 1}}, true);
-  check_parse_markdown_v3("`\n`a", "\na", {{td::MessageEntity::Type::Code, 0, 1}}, true);
-  check_parse_markdown_v3("``", "``", {});
-  check_parse_markdown_v3("`a````b```", "`a````b```", {});
-  check_parse_markdown_v3("ab", {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}}, "ab",
-                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}});
-
-  check_parse_markdown_v3("[a](b[c](t.me)", "[a](b[c](t.me)", {});
-  check_parse_markdown_v3("[](t.me)", "[](t.me)", {});
-  check_parse_markdown_v3("[ ](t.me)", " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}});
-  check_parse_markdown_v3("[ ](t.me)", "", {}, true);
-  check_parse_markdown_v3("[ ](t.me)a", " a", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}}, true);
-  check_parse_markdown_v3(
-      "[ ](t.me) [ ](t.me)",
-      {{td::MessageEntity::Type::TextUrl, 8, 1, "http://t.me/"}, {10, 1, td::UserId(static_cast<td::int64>(1))}},
-      "[ ](t.me) [ ](t.me)",
-      {{td::MessageEntity::Type::TextUrl, 8, 1, "http://t.me/"}, {10, 1, td::UserId(static_cast<td::int64>(1))}});
-  check_parse_markdown_v3("[\n](t.me)", "\n", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}});
-  check_parse_markdown_v3("[\n](t.me)a", "\na", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}}, true);
-  check_parse_markdown_v3("asd[abcd](google.com)", {{td::MessageEntity::Type::Italic, 0, 5}}, "asdabcd",
-                          {{td::MessageEntity::Type::Italic, 0, 3},
-                           {td::MessageEntity::Type::TextUrl, 3, 4, "http://google.com/"},
-                           {td::MessageEntity::Type::Italic, 3, 1}});
-  check_parse_markdown_v3("asd[abcd](google.com)efg[hi](https://t.me?t=1#h)e",
-                          {{td::MessageEntity::Type::Italic, 0, 5}, {td::MessageEntity::Type::Italic, 18, 31}},
-                          "asdabcdefghie",
-                          {{td::MessageEntity::Type::Italic, 0, 3},
-                           {td::MessageEntity::Type::TextUrl, 3, 4, "http://google.com/"},
-                           {td::MessageEntity::Type::Italic, 3, 1},
-                           {td::MessageEntity::Type::Italic, 7, 3},
-                           {td::MessageEntity::Type::TextUrl, 10, 2, "https://t.me/?t=1#h"},
-                           {td::MessageEntity::Type::Italic, 10, 2},
-                           {td::MessageEntity::Type::Italic, 12, 1}});
-  check_parse_markdown_v3(
-      "🏟🏟🏟[🏟🏟🏟🏟🏟](www.🤙.tk#1)🤙🤙🤙[🏟🏟🏟🏟](www.🤙.tk#2)🤙🤙🤙["
-      "🏟🏟🏟🏟](www.🤙.tk#3)🏟🏟🏟[🏟🏟🏟🏟](www.🤙.tk#4)🤙🤙",
-      "🏟🏟🏟🏟🏟🏟🏟🏟🤙🤙🤙🏟🏟🏟🏟🤙🤙🤙🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟"
-      "🏟🤙🤙",
-      {{td::MessageEntity::Type::TextUrl, 6, 10, "http://www.🤙.tk/#1"},
-       {td::MessageEntity::Type::TextUrl, 22, 8, "http://www.🤙.tk/#2"},
-       {td::MessageEntity::Type::TextUrl, 36, 8, "http://www.🤙.tk/#3"},
-       {td::MessageEntity::Type::TextUrl, 50, 8, "http://www.🤙.tk/#4"}});
-  check_parse_markdown_v3(
-      "[🏟🏟🏟🏟🏟](www.🤙.tk#1)[🏟🏟🏟🏟](www.🤙.tk#2)[🏟🏟🏟🏟](www.🤙.tk#3)["
-      "🏟🏟🏟🏟](www.🤙.tk#4)",
-      "🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟",
-      {{td::MessageEntity::Type::TextUrl, 0, 10, "http://www.🤙.tk/#1"},
-       {td::MessageEntity::Type::TextUrl, 10, 8, "http://www.🤙.tk/#2"},
-       {td::MessageEntity::Type::TextUrl, 18, 8, "http://www.🤙.tk/#3"},
-       {td::MessageEntity::Type::TextUrl, 26, 8, "http://www.🤙.tk/#4"}});
-  check_parse_markdown_v3(
-      "🏟🏟🏟[🏟🏟🏟🏟🏟](www.🤙.tk)🤙🤙🤙[🏟🏟🏟🏟](www.🤙.tk)🤙🤙🤙["
-      "🏟🏟🏟🏟](www.🤙.tk)🏟🏟🏟[🏟🏟🏟🏟](www.🤙.tk)🤙🤙",
-      {{td::MessageEntity::Type::Bold, 0, 2},
-       {td::MessageEntity::Type::Bold, 4, 2},
-       {td::MessageEntity::Type::Bold, 7, 2},
-       {td::MessageEntity::Type::Bold, 11, 2},
-       {td::MessageEntity::Type::Bold, 15, 2},
-       {td::MessageEntity::Type::Bold, 18, 2},
-       {td::MessageEntity::Type::Bold, 26, 2},
-       {31, 2, td::UserId(static_cast<td::int64>(1))},
-       {td::MessageEntity::Type::Bold, 35, 1},
-       {td::MessageEntity::Type::Bold, 44, 2},
-       {td::MessageEntity::Type::Bold, 50, 2},
-       {td::MessageEntity::Type::Bold, 54, 2},
-       {56, 2, td::UserId(static_cast<td::int64>(2))},
-       {td::MessageEntity::Type::Bold, 58, 7},
-       {60, 2, td::UserId(static_cast<td::int64>(3))},
-       {td::MessageEntity::Type::Bold, 67, 7},
-       {td::MessageEntity::Type::Bold, 80, 7},
-       {td::MessageEntity::Type::Bold, 89, 25}},
-      "🏟🏟🏟🏟🏟🏟🏟🏟🤙🤙🤙🏟🏟🏟🏟🤙🤙🤙🏟🏟🏟🏟🏟🏟🏟🏟🏟🏟"
-      "🏟🤙🤙",
-      {{td::MessageEntity::Type::Bold, 0, 2},
-       {td::MessageEntity::Type::Bold, 4, 2},
-       {td::MessageEntity::Type::TextUrl, 6, 10, "http://www.🤙.tk/"},
-       {td::MessageEntity::Type::Bold, 6, 2},
-       {td::MessageEntity::Type::Bold, 10, 2},
-       {td::MessageEntity::Type::Bold, 14, 2},
-       {18, 2, td::UserId(static_cast<td::int64>(1))},
-       {td::MessageEntity::Type::TextUrl, 22, 8, "http://www.🤙.tk/"},
-       {30, 2, td::UserId(static_cast<td::int64>(2))},
-       {td::MessageEntity::Type::Bold, 32, 2},
-       {34, 2, td::UserId(static_cast<td::int64>(3))},
-       {td::MessageEntity::Type::Bold, 34, 2},
-       {td::MessageEntity::Type::TextUrl, 36, 8, "http://www.🤙.tk/"},
-       {td::MessageEntity::Type::Bold, 36, 2},
-       {td::MessageEntity::Type::Bold, 40, 4},
-       {td::MessageEntity::Type::Bold, 44, 4},
-       {td::MessageEntity::Type::TextUrl, 50, 8, "http://www.🤙.tk/"},
-       {td::MessageEntity::Type::Bold, 50, 8},
-       {td::MessageEntity::Type::Bold, 58, 4}});
-  check_parse_markdown_v3("[`a`](t.me) [b](t.me)", {{td::MessageEntity::Type::Code, 13, 1}}, "[a](t.me) [b](t.me)",
-                          {{td::MessageEntity::Type::Code, 1, 1}, {td::MessageEntity::Type::Code, 11, 1}});
-  check_parse_markdown_v3(
-      "[text](example.com)",
-      {{td::MessageEntity::Type::Strikethrough, 0, 1}, {td::MessageEntity::Type::Strikethrough, 5, 14}}, "text",
-      {{td::MessageEntity::Type::TextUrl, 0, 4, "http://example.com/"}});
-  check_parse_markdown_v3("[text](example.com)",
-                          {{td::MessageEntity::Type::Spoiler, 0, 1}, {td::MessageEntity::Type::Spoiler, 5, 14}}, "text",
-                          {{td::MessageEntity::Type::TextUrl, 0, 4, "http://example.com/"}});
-
-  check_parse_markdown_v3("🏟[🏟](t.me) `🏟` [🏟](t.me) `a`", "🏟🏟 🏟 🏟 a",
-                          {{td::MessageEntity::Type::TextUrl, 2, 2, "http://t.me/"},
-                           {td::MessageEntity::Type::Code, 5, 2},
-                           {td::MessageEntity::Type::TextUrl, 8, 2, "http://t.me/"},
-                           {td::MessageEntity::Type::Code, 11, 1}});
-
-  check_parse_markdown_v3("__ __", " ", {{td::MessageEntity::Type::Italic, 0, 1}});
-  check_parse_markdown_v3("__\n__", "\n", {{td::MessageEntity::Type::Italic, 0, 1}});
-  check_parse_markdown_v3("__ __a", " a", {{td::MessageEntity::Type::Italic, 0, 1}}, true);
-  check_parse_markdown_v3("__\n__a", "\na", {{td::MessageEntity::Type::Italic, 0, 1}}, true);
-  check_parse_markdown_v3("**** __a__ **b** ~~c~~ ||d||", "**** a b c d",
-                          {{td::MessageEntity::Type::Italic, 5, 1},
-                           {td::MessageEntity::Type::Bold, 7, 1},
-                           {td::MessageEntity::Type::Strikethrough, 9, 1},
-                           {td::MessageEntity::Type::Spoiler, 11, 1}});
-  check_parse_markdown_v3("тест __аааа__ **бббб** ~~вввв~~ ||гггг||", "тест аааа бббб вввв гггг",
-                          {{td::MessageEntity::Type::Italic, 5, 4},
-                           {td::MessageEntity::Type::Bold, 10, 4},
-                           {td::MessageEntity::Type::Strikethrough, 15, 4},
-                           {td::MessageEntity::Type::Spoiler, 20, 4}});
-  check_parse_markdown_v3("___a___ ***b** ~c~~", "___a___ ***b** ~c~~", {});
-  check_parse_markdown_v3(
-      "__asd[ab__cd](t.me)", "asdabcd",
-      {{td::MessageEntity::Type::Italic, 0, 5}, {td::MessageEntity::Type::TextUrl, 3, 4, "http://t.me/"}});
-  check_parse_markdown_v3("__asd[ab__cd](t.me)", "asdabcd",
-                          {{td::MessageEntity::Type::Italic, 0, 3},
-                           {td::MessageEntity::Type::TextUrl, 3, 4, "http://t.me/"},
-                           {td::MessageEntity::Type::Italic, 3, 2}},
-                          true);
-  check_parse_markdown_v3("__a #test__test", "__a #test__test", {});
-  check_parse_markdown_v3("a #testtest", {{td::MessageEntity::Type::Italic, 0, 7}}, "a #testtest",
-                          {{td::MessageEntity::Type::Italic, 0, 7}});
-
-  // TODO parse_markdown_v3 is not idempotent now, which is bad
-  check_parse_markdown_v3(
-      "~~**~~__**a__", {{td::MessageEntity::Type::Strikethrough, 2, 1}, {td::MessageEntity::Type::Bold, 6, 1}},
-      "**__**a__", {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}}, true);
-  check_parse_markdown_v3("**__**a__",
-                          {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}},
-                          "__a__", {{td::MessageEntity::Type::Bold, 0, 2}}, true);
-  check_parse_markdown_v3("__a__", {{td::MessageEntity::Type::Bold, 0, 2}}, "a",
-                          {{td::MessageEntity::Type::Italic, 0, 1}}, true);
-  check_parse_markdown_v3("~~__~~#test__test", "__#test__test", {{td::MessageEntity::Type::Strikethrough, 0, 2}});
-  check_parse_markdown_v3("__#test__test", {{td::MessageEntity::Type::Strikethrough, 0, 2}}, "#testtest",
-                          {{td::MessageEntity::Type::Italic, 0, 5}});
-
-  check_parse_markdown_v3(
-      "~~**~~||**a||", {{td::MessageEntity::Type::Strikethrough, 2, 1}, {td::MessageEntity::Type::Bold, 6, 1}},
-      "**||**a||", {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}}, true);
-  check_parse_markdown_v3("**||**a||",
-                          {{td::MessageEntity::Type::Strikethrough, 0, 2}, {td::MessageEntity::Type::Bold, 2, 1}},
-                          "||a||", {{td::MessageEntity::Type::Bold, 0, 2}}, true);
-  check_parse_markdown_v3("||a||", {{td::MessageEntity::Type::Bold, 0, 2}}, "a",
-                          {{td::MessageEntity::Type::Spoiler, 0, 1}}, true);
-  check_parse_markdown_v3("~~||~~#test||test", "#testtest", {{td::MessageEntity::Type::Spoiler, 0, 5}});
-  check_parse_markdown_v3("||#test||test", {{td::MessageEntity::Type::Strikethrough, 0, 2}}, "#testtest",
-                          {{td::MessageEntity::Type::Spoiler, 0, 5}});
-
-  check_parse_markdown_v3("__[ab_](t.me)_", "__ab__", {{td::MessageEntity::Type::TextUrl, 2, 3, "http://t.me/"}});
-  check_parse_markdown_v3(
-      "__[ab__](t.me)_", "ab_",
-      {{td::MessageEntity::Type::TextUrl, 0, 2, "http://t.me/"}, {td::MessageEntity::Type::Italic, 0, 2}});
-  check_parse_markdown_v3("__[__ab__](t.me)__", "____ab____",
-                          {{td::MessageEntity::Type::TextUrl, 2, 6, "http://t.me/"}});
-  check_parse_markdown_v3(
-      "__[__ab__](t.me)a__", "____aba",
-      {{td::MessageEntity::Type::TextUrl, 2, 4, "http://t.me/"}, {td::MessageEntity::Type::Italic, 6, 1}});
-  check_parse_markdown_v3("`a` __ab__", {{td::MessageEntity::Type::Bold, 6, 3}}, "a __ab__",
-                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Bold, 4, 3}});
-  check_parse_markdown_v3("`a` __ab__", {{td::MessageEntity::Type::Underline, 5, 1}}, "a __ab__",
-                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Underline, 3, 1}});
-
-  check_parse_markdown_v3("||[ab|](t.me)|", "||ab||", {{td::MessageEntity::Type::TextUrl, 2, 3, "http://t.me/"}});
-  check_parse_markdown_v3(
-      "||[ab||](t.me)|", "ab|",
-      {{td::MessageEntity::Type::TextUrl, 0, 2, "http://t.me/"}, {td::MessageEntity::Type::Spoiler, 0, 2}});
-  check_parse_markdown_v3("||[||ab||](t.me)||", "||||ab||||",
-                          {{td::MessageEntity::Type::TextUrl, 2, 6, "http://t.me/"}});
-  check_parse_markdown_v3(
-      "||[||ab||](t.me)a||", "||||aba",
-      {{td::MessageEntity::Type::TextUrl, 2, 4, "http://t.me/"}, {td::MessageEntity::Type::Spoiler, 6, 1}});
-  check_parse_markdown_v3("`a` ||ab||", {{td::MessageEntity::Type::Bold, 6, 3}}, "a ||ab||",
-                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Bold, 4, 3}});
-  check_parse_markdown_v3("`a` ||ab||", {{td::MessageEntity::Type::Underline, 5, 1}}, "a ||ab||",
-                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Underline, 3, 1}});
-
-  check_parse_markdown_v3("`a` @test__test__test", "a @test__test__test", {{td::MessageEntity::Type::Code, 0, 1}});
-  check_parse_markdown_v3("`a` #test__test__test", "a #test__test__test", {{td::MessageEntity::Type::Code, 0, 1}});
-  check_parse_markdown_v3("`a` __@test_test_test__", "a @test_test_test",
-                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Italic, 2, 15}});
-  check_parse_markdown_v3("`a` __#test_test_test__", "a #test_test_test",
-                          {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Italic, 2, 15}});
-  check_parse_markdown_v3("[a](t.me) __@test**test**test__", "a @testtesttest",
-                          {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"},
-                           {td::MessageEntity::Type::Italic, 2, 13},
-                           {td::MessageEntity::Type::Bold, 7, 4}});
-  check_parse_markdown_v3("[a](t.me) __#test~~test~~test__", "a #testtesttest",
-                          {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"},
-                           {td::MessageEntity::Type::Italic, 2, 13},
-                           {td::MessageEntity::Type::Strikethrough, 7, 4}});
-  check_parse_markdown_v3("[a](t.me) __@test__test__test__", "a @testtesttest",
-                          {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"},
-                           {td::MessageEntity::Type::Italic, 2, 5},
-                           {td::MessageEntity::Type::Italic, 11, 4}});
-  check_parse_markdown_v3("__**~~__gh**~~", "gh",
-                          {{td::MessageEntity::Type::Bold, 0, 2}, {td::MessageEntity::Type::Strikethrough, 0, 2}});
-  check_parse_markdown_v3("__ab**cd~~ef__gh**ij~~", "abcdefghij",
-                          {{td::MessageEntity::Type::Italic, 0, 6},
-                           {td::MessageEntity::Type::Bold, 2, 6},
-                           {td::MessageEntity::Type::Strikethrough, 4, 6}});
-  check_parse_markdown_v3("__ab**cd~~ef||gh__ij**kl~~mn||", "abcdefghijklmn",
-                          {{td::MessageEntity::Type::Italic, 0, 2},
-                           {td::MessageEntity::Type::Bold, 2, 2},
-                           {td::MessageEntity::Type::Italic, 2, 2},
-                           {td::MessageEntity::Type::Bold, 4, 2},
-                           {td::MessageEntity::Type::Italic, 4, 2},
-                           {td::MessageEntity::Type::Strikethrough, 4, 2},
-                           {td::MessageEntity::Type::Spoiler, 6, 8},
-                           {td::MessageEntity::Type::Strikethrough, 6, 6},
-                           {td::MessageEntity::Type::Bold, 6, 4},
-                           {td::MessageEntity::Type::Italic, 6, 2}},
-                          true);
-  check_parse_markdown_v3("__ab**[cd~~ef__](t.me)gh**ij~~", "abcdefghij",
-                          {{td::MessageEntity::Type::Italic, 0, 6},
-                           {td::MessageEntity::Type::Bold, 2, 6},
-                           {td::MessageEntity::Type::TextUrl, 2, 4, "http://t.me/"},
-                           {td::MessageEntity::Type::Strikethrough, 4, 6}});
-  check_parse_markdown_v3("__ab**[cd~~e](t.me)f__gh**ij~~", "abcdefghij",
-                          {{td::MessageEntity::Type::Italic, 0, 6},
-                           {td::MessageEntity::Type::Bold, 2, 6},
-                           {td::MessageEntity::Type::TextUrl, 2, 3, "http://t.me/"},
-                           {td::MessageEntity::Type::Strikethrough, 4, 6}});
-  check_parse_markdown_v3("__ab**[cd~~](t.me)ef__gh**ij~~", "abcdefghij",
-                          {{td::MessageEntity::Type::Italic, 0, 6},
-                           {td::MessageEntity::Type::Bold, 2, 6},
-                           {td::MessageEntity::Type::TextUrl, 2, 2, "http://t.me/"},
-                           {td::MessageEntity::Type::Strikethrough, 4, 6}});
-  check_parse_markdown_v3("[__**bold italic link**__](example.com)", "bold italic link",
-                          {{td::MessageEntity::Type::TextUrl, 0, 16, "http://example.com/"},
-                           {td::MessageEntity::Type::Bold, 0, 16},
-                           {td::MessageEntity::Type::Italic, 0, 16}});
-  check_parse_markdown_v3(
-      "__italic__ ~~strikethrough~~ **bold** `code` ```pre``` __[italic__ text_url](telegram.org) __italic**bold "
-      "italic__bold**__italic__ ~~strikethrough~~ **bold** `code` ```pre``` __[italic__ text_url](telegram.org) "
-      "__italic**bold italic__bold** ||spoiler|| ```pre\nprecode``` init",
-      {{td::MessageEntity::Type::Italic, 271, 4}},
-      "italic strikethrough bold code pre italic text_url italicbold italicbolditalic strikethrough bold code pre "
-      "italic text_url italicbold italicbold spoiler precode init",
-      {{td::MessageEntity::Type::Italic, 0, 6},
-       {td::MessageEntity::Type::Strikethrough, 7, 13},
-       {td::MessageEntity::Type::Bold, 21, 4},
-       {td::MessageEntity::Type::Code, 26, 4},
-       {td::MessageEntity::Type::Pre, 31, 3},
-       {td::MessageEntity::Type::TextUrl, 35, 15, "http://telegram.org/"},
-       {td::MessageEntity::Type::Italic, 35, 6},
-       {td::MessageEntity::Type::Italic, 51, 17},
-       {td::MessageEntity::Type::Bold, 57, 15},
-       {td::MessageEntity::Type::Italic, 72, 6},
-       {td::MessageEntity::Type::Strikethrough, 79, 13},
-       {td::MessageEntity::Type::Bold, 93, 4},
-       {td::MessageEntity::Type::Code, 98, 4},
-       {td::MessageEntity::Type::Pre, 103, 3},
-       {td::MessageEntity::Type::TextUrl, 107, 15, "http://telegram.org/"},
-       {td::MessageEntity::Type::Italic, 107, 6},
-       {td::MessageEntity::Type::Italic, 123, 17},
-       {td::MessageEntity::Type::Bold, 129, 15},
-       {td::MessageEntity::Type::Spoiler, 145, 7},
-       {td::MessageEntity::Type::PreCode, 153, 7, "pre"},
-       {td::MessageEntity::Type::Italic, 161, 4}});
-  check_parse_markdown_v3("```\nsome code\n```", "some code\n", {{td::MessageEntity::Type::Pre, 0, 10}});
-  check_parse_markdown_v3("asd\n```\nsome code\n```cabab", "asd\nsome code\ncabab",
-                          {{td::MessageEntity::Type::Pre, 4, 10}});
-  check_parse_markdown_v3("asd\naba```\nsome code\n```cabab", "asd\nabasome code\ncabab",
-                          {{td::MessageEntity::Type::Pre, 7, 10}});
-  check_parse_markdown_v3("asd\naba```\nsome code\n```\ncabab", "asd\nabasome code\n\ncabab",
-                          {{td::MessageEntity::Type::Pre, 7, 10}});
-  check_parse_markdown_v3("asd\naba```a b\nsome code\n```\ncabab", "asd\nabaa b\nsome code\n\ncabab",
-                          {{td::MessageEntity::Type::Pre, 7, 14}});
-  check_parse_markdown_v3("asd\naba```a!@#$%^&*(b\nsome code\n```\ncabab", "asd\nabasome code\n\ncabab",
-                          {{td::MessageEntity::Type::PreCode, 7, 10, "a!@#$%^&*(b"}});
-  check_parse_markdown_v3("```aba\n```", "aba\n", {{td::MessageEntity::Type::Pre, 0, 4}});
-  check_parse_markdown_v3("```\n```", "\n", {{td::MessageEntity::Type::Pre, 0, 1}});
-  check_parse_markdown_v3("```\n```", {{td::MessageEntity::Type::BlockQuote, 0, 7}}, "\n",
-                          {{td::MessageEntity::Type::BlockQuote, 0, 1}, {td::MessageEntity::Type::Pre, 0, 1}});
-
-  td::vector<td::string> parts{"a", " #test__a", "__", "**", "~~", "||", "[", "](t.me)", "`"};
-  td::vector<td::MessageEntity::Type> types{
-      td::MessageEntity::Type::Bold,          td::MessageEntity::Type::Italic,  td::MessageEntity::Type::Underline,
-      td::MessageEntity::Type::Strikethrough, td::MessageEntity::Type::Spoiler, td::MessageEntity::Type::Code,
-      td::MessageEntity::Type::Pre,           td::MessageEntity::Type::PreCode, td::MessageEntity::Type::TextUrl,
-      td::MessageEntity::Type::MentionName,   td::MessageEntity::Type::Cashtag, td::MessageEntity::Type::BlockQuote};
-  for (size_t test_n = 0; test_n < 1000; test_n++) {
-    td::string str;
-    int part_n = td::Random::fast(1, 200);
-    for (int i = 0; i < part_n; i++) {
-      str += parts[td::Random::fast(0, static_cast<int>(parts.size()) - 1)];
-    }
-    td::vector<td::MessageEntity> entities;
-    int entity_n = td::Random::fast(1, 20);
-    for (int i = 0; i < entity_n; i++) {
-      auto type = types[td::Random::fast(0, static_cast<int>(types.size()) - 1)];
-      td::int32 offset = td::Random::fast(0, static_cast<int>(str.size()) - 1);
-      auto max_length = static_cast<int>(str.size() - offset);
-      if ((test_n & 1) != 0 && max_length > 4) {
-        max_length = 4;
-      }
-      td::int32 length = td::Random::fast(0, max_length);
-      entities.emplace_back(type, offset, length);
-    }
-
-    td::FormattedText text{std::move(str), std::move(entities)};
-    while (true) {
-      ASSERT_TRUE(td::fix_formatted_text(text.text, text.entities, true, true, true, true, true).is_ok());
-      auto parsed_text = td::parse_markdown_v3(text);
-      ASSERT_TRUE(td::fix_formatted_text(parsed_text.text, parsed_text.entities, true, true, true, true, true).is_ok());
-      if (parsed_text == text) {
-        break;
-      }
-      text = std::move(parsed_text);
-    }
-    ASSERT_EQ(text, td::parse_markdown_v3(text));
-    auto markdown_text = td::get_markdown_v3(text);
-    ASSERT_TRUE(text == markdown_text || text == td::parse_markdown_v3(markdown_text));
-  }
-}
-
-static void check_get_markdown_v3(const td::string &result_text, const td::vector<td::MessageEntity> &result_entities,
-                                  td::string text, td::vector<td::MessageEntity> entities) {
-  auto markdown_text = td::get_markdown_v3({std::move(text), std::move(entities)});
-  ASSERT_STREQ(result_text, markdown_text.text);
-  ASSERT_EQ(result_entities, markdown_text.entities);
-}
-
-TEST(MessageEntities, get_markdown_v3) {
-  check_get_markdown_v3("```\n ```", {}, " ", {{td::MessageEntity::Type::Pre, 0, 1}});
-  check_get_markdown_v3("` `", {}, " ", {{td::MessageEntity::Type::Code, 0, 1}});
-  check_get_markdown_v3("`\n`", {}, "\n", {{td::MessageEntity::Type::Code, 0, 1}});
-  check_get_markdown_v3("ab", {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}}, "ab",
-                        {{td::MessageEntity::Type::Code, 0, 1}, {td::MessageEntity::Type::Pre, 1, 1}});
-
-  check_get_markdown_v3("[ ](http://t.me/)", {}, " ", {{td::MessageEntity::Type::TextUrl, 0, 1, "http://t.me/"}});
-  check_get_markdown_v3(
-      "[ ]t.me[)](http://t.me/) [ ](t.me)", {{25, 1, td::UserId(static_cast<td::int64>(1))}}, "[ ]t.me) [ ](t.me)",
-      {{td::MessageEntity::Type::TextUrl, 7, 1, "http://t.me/"}, {9, 1, td::UserId(static_cast<td::int64>(1))}});
-
-  check_get_markdown_v3("__ __", {}, " ", {{td::MessageEntity::Type::Italic, 0, 1}});
-  check_get_markdown_v3("** **", {}, " ", {{td::MessageEntity::Type::Bold, 0, 1}});
-  check_get_markdown_v3("~~ ~~", {}, " ", {{td::MessageEntity::Type::Strikethrough, 0, 1}});
-  check_get_markdown_v3("|| ||", {}, " ", {{td::MessageEntity::Type::Spoiler, 0, 1}});
-  check_get_markdown_v3("__a__ **b** ~~c~~ ||d|| e", {{td::MessageEntity::Type::PreCode, 24, 1, " C++"}}, "a b c d e",
-                        {{td::MessageEntity::Type::Italic, 0, 1},
-                         {td::MessageEntity::Type::Bold, 2, 1},
-                         {td::MessageEntity::Type::Strikethrough, 4, 1},
-                         {td::MessageEntity::Type::Spoiler, 6, 1},
-                         {td::MessageEntity::Type::PreCode, 8, 1, " C++"}});
-  check_get_markdown_v3("```cpp\ngh```\n`ab`\n```\ncd```\nef", {{td::MessageEntity::Type::PreCode, 28, 2, " C++"}},
-                        "gh\nab\ncd\nef",
-                        {{td::MessageEntity::Type::PreCode, 0, 2, "cpp"},
-                         {td::MessageEntity::Type::Code, 3, 2},
-                         {td::MessageEntity::Type::Pre, 6, 2},
-                         {td::MessageEntity::Type::PreCode, 9, 2, " C++"}});
-  check_get_markdown_v3("__asd__[__ab__cd](http://t.me/)", {}, "asdabcd",
-                        {{td::MessageEntity::Type::Italic, 0, 3},
-                         {td::MessageEntity::Type::TextUrl, 3, 4, "http://t.me/"},
-                         {td::MessageEntity::Type::Italic, 3, 2}});
-
-  check_get_markdown_v3("__ab", {{td::MessageEntity::Type::Italic, 3, 1}}, "__ab",
-                        {{td::MessageEntity::Type::Italic, 3, 1}});
-  check_get_markdown_v3("__ab__**__cd__**~~**__ef__gh**ij~~", {}, "abcdefghij",
-                        {{td::MessageEntity::Type::Italic, 0, 2},
-                         {td::MessageEntity::Type::Bold, 2, 2},
-                         {td::MessageEntity::Type::Italic, 2, 2},
-                         {td::MessageEntity::Type::Strikethrough, 4, 6},
-                         {td::MessageEntity::Type::Bold, 4, 4},
-                         {td::MessageEntity::Type::Italic, 4, 2}});
-  check_get_markdown_v3("[**__bold italic link__**](http://example.com/)", {}, "bold italic link",
-                        {{td::MessageEntity::Type::TextUrl, 0, 16, "http://example.com/"},
-                         {td::MessageEntity::Type::Bold, 0, 16},
-                         {td::MessageEntity::Type::Italic, 0, 16}});
-  check_get_markdown_v3("```\nsome code\n```", {}, "some code\n", {{td::MessageEntity::Type::Pre, 0, 10}});
-  check_get_markdown_v3("asd\n```\nsome code\n```cabab", {}, "asd\nsome code\ncabab",
-                        {{td::MessageEntity::Type::Pre, 4, 10}});
-  check_get_markdown_v3("asd\naba```\nsome code\n```cabab", {}, "asd\nabasome code\ncabab",
-                        {{td::MessageEntity::Type::Pre, 7, 10}});
-  check_get_markdown_v3("asd\naba```\nsome code\n```\ncabab", {}, "asd\nabasome code\n\ncabab",
-                        {{td::MessageEntity::Type::Pre, 7, 10}});
-  check_get_markdown_v3("asd\naba```\na b\nsome code\n```\ncabab", {}, "asd\nabaa b\nsome code\n\ncabab",
-                        {{td::MessageEntity::Type::Pre, 7, 14}});
-  check_get_markdown_v3("asd\n```\na b\nsome code\n```\ncabab", {}, "asd\na b\nsome code\n\ncabab",
-                        {{td::MessageEntity::Type::Pre, 4, 14}});
-  check_get_markdown_v3("asd\naba```a!@#$%^&*(b\nsome code\n```\ncabab", {}, "asd\nabasome code\n\ncabab",
-                        {{td::MessageEntity::Type::PreCode, 7, 10, "a!@#$%^&*(b"}});
-  check_get_markdown_v3("```\naba\n```", {}, "aba\n", {{td::MessageEntity::Type::Pre, 0, 4}});
-  check_get_markdown_v3("```\n```", {}, "\n", {{td::MessageEntity::Type::Pre, 0, 1}});
-}
diff --git a/third-party/td/td/test/mtproto.cpp b/third-party/td/td/test/mtproto.cpp
deleted file mode 100644
index b21d0905d3..0000000000
--- a/third-party/td/td/test/mtproto.cpp
+++ /dev/null
@@ -1,742 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ConfigManager.h"
-#include "td/telegram/net/PublicRsaKeySharedMain.h"
-#include "td/telegram/NotificationManager.h"
-#include "td/telegram/telegram_api.h"
-
-#include "td/mtproto/AuthData.h"
-#include "td/mtproto/DhCallback.h"
-#include "td/mtproto/DhHandshake.h"
-#include "td/mtproto/Handshake.h"
-#include "td/mtproto/HandshakeActor.h"
-#include "td/mtproto/Ping.h"
-#include "td/mtproto/PingConnection.h"
-#include "td/mtproto/ProxySecret.h"
-#include "td/mtproto/RawConnection.h"
-#include "td/mtproto/RSA.h"
-#include "td/mtproto/TlsInit.h"
-#include "td/mtproto/TransportType.h"
-
-#include "td/net/GetHostByNameActor.h"
-#include "td/net/Socks5.h"
-#include "td/net/TransparentProxy.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/HttpDate.h"
-#include "td/utils/logging.h"
-#include "td/utils/port/Clocks.h"
-#include "td/utils/port/IPAddress.h"
-#include "td/utils/port/SocketFd.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-#include "td/utils/Time.h"
-
-#include <memory>
-
-TEST(Mtproto, GetHostByNameActor) {
-  int threads_n = 1;
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  int cnt = 1;
-  td::vector<td::ActorOwn<td::GetHostByNameActor>> actors;
-  {
-    auto guard = sched.get_main_guard();
-
-    auto run = [&](td::ActorId<td::GetHostByNameActor> actor_id, td::string host, bool prefer_ipv6, bool allow_ok,
-                   bool allow_error) {
-      auto promise = td::PromiseCreator::lambda([&cnt, &actors, num = cnt, host, allow_ok,
-                                                 allow_error](td::Result<td::IPAddress> r_ip_address) {
-        if (r_ip_address.is_error() && !allow_error) {
-          LOG(ERROR) << num << " \"" << host << "\" " << r_ip_address.error();
-        }
-        if (r_ip_address.is_ok() && !allow_ok && (r_ip_address.ok().is_ipv6() || r_ip_address.ok().get_ipv4() != 0)) {
-          LOG(ERROR) << num << " \"" << host << "\" " << r_ip_address.ok();
-        }
-        if (--cnt == 0) {
-          actors.clear();
-          td::Scheduler::instance()->finish();
-        }
-      });
-      cnt++;
-      td::send_closure_later(actor_id, &td::GetHostByNameActor::run, host, 443, prefer_ipv6, std::move(promise));
-    };
-
-    td::vector<td::string> hosts = {"127.0.0.2",
-                                    "1.1.1.1",
-                                    "localhost",
-                                    "web.telegram.org",
-                                    "web.telegram.org.",
-                                    "москва.рф",
-                                    "",
-                                    "%",
-                                    " ",
-                                    "a",
-                                    "\x80",
-                                    "[]",
-                                    "127.0.0.1.",
-                                    "0x12.0x34.0x56.0x78",
-                                    "0x7f.001",
-                                    "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
-                                    "[2001:0db8:85a3:0000:0000:8a2e:0370:7334]",
-                                    "[[2001:0db8:85a3:0000:0000:8a2e:0370:7334]]"};
-    for (const auto &types :
-         {td::vector<td::GetHostByNameActor::ResolverType>{td::GetHostByNameActor::ResolverType::Native},
-          td::vector<td::GetHostByNameActor::ResolverType>{td::GetHostByNameActor::ResolverType::Google},
-          td::vector<td::GetHostByNameActor::ResolverType>{td::GetHostByNameActor::ResolverType::Google,
-                                                           td::GetHostByNameActor::ResolverType::Google,
-                                                           td::GetHostByNameActor::ResolverType::Native}}) {
-      td::GetHostByNameActor::Options options;
-      options.resolver_types = types;
-      options.scheduler_id = threads_n;
-
-      auto actor = td::create_actor<td::GetHostByNameActor>("GetHostByNameActor", std::move(options));
-      auto actor_id = actor.get();
-      actors.push_back(std::move(actor));
-
-      for (auto host : hosts) {
-        for (auto prefer_ipv6 : {false, true}) {
-          bool allow_ok = host.size() > 2 && host[1] != '[';
-          bool allow_both = host == "127.0.0.1." || host == "localhost" || (host == "москва.рф" && prefer_ipv6);
-          bool allow_error = !allow_ok || allow_both;
-          run(actor_id, host, prefer_ipv6, allow_ok, allow_error);
-        }
-      }
-    }
-  }
-  cnt--;
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
-
-TEST(Time, to_unix_time) {
-  ASSERT_EQ(0, td::HttpDate::to_unix_time(1970, 1, 1, 0, 0, 0).move_as_ok());
-  ASSERT_EQ(60 * 60 + 60 + 1, td::HttpDate::to_unix_time(1970, 1, 1, 1, 1, 1).move_as_ok());
-  ASSERT_EQ(24 * 60 * 60, td::HttpDate::to_unix_time(1970, 1, 2, 0, 0, 0).move_as_ok());
-  ASSERT_EQ(31 * 24 * 60 * 60, td::HttpDate::to_unix_time(1970, 2, 1, 0, 0, 0).move_as_ok());
-  ASSERT_EQ(365 * 24 * 60 * 60, td::HttpDate::to_unix_time(1971, 1, 1, 0, 0, 0).move_as_ok());
-  ASSERT_EQ(1562780559, td::HttpDate::to_unix_time(2019, 7, 10, 17, 42, 39).move_as_ok());
-}
-
-TEST(Time, parse_http_date) {
-  ASSERT_EQ(784887151, td::HttpDate::parse_http_date("Tue, 15 Nov 1994 08:12:31 GMT").move_as_ok());
-}
-
-TEST(Mtproto, config) {
-  int threads_n = 0;
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  int cnt = 1;
-  {
-    auto guard = sched.get_main_guard();
-
-    auto run = [&](auto &func, bool is_test) {
-      auto promise =
-          td::PromiseCreator::lambda([&, num = cnt](td::Result<td::SimpleConfigResult> r_simple_config_result) {
-            if (r_simple_config_result.is_ok()) {
-              auto simple_config_result = r_simple_config_result.move_as_ok();
-              auto date = simple_config_result.r_http_date.is_ok()
-                              ? td::to_string(simple_config_result.r_http_date.ok())
-                              : (PSTRING() << simple_config_result.r_http_date.error());
-              auto config = simple_config_result.r_config.is_ok()
-                                ? to_string(simple_config_result.r_config.ok())
-                                : (PSTRING() << simple_config_result.r_config.error());
-              LOG(ERROR) << num << " " << date << " " << config;
-            } else {
-              LOG(ERROR) << num << " " << r_simple_config_result.error();
-            }
-            if (--cnt == 0) {
-              td::Scheduler::instance()->finish();
-            }
-          });
-      cnt++;
-      func(std::move(promise), false, td::Slice(), is_test, -1).release();
-    };
-
-    run(td::get_simple_config_azure, false);
-    run(td::get_simple_config_google_dns, false);
-    run(td::get_simple_config_mozilla_dns, false);
-    run(td::get_simple_config_azure, true);
-    run(td::get_simple_config_google_dns, true);
-    run(td::get_simple_config_mozilla_dns, true);
-    run(td::get_simple_config_firebase_remote_config, false);
-    run(td::get_simple_config_firebase_realtime, false);
-    run(td::get_simple_config_firebase_firestore, false);
-  }
-  cnt--;
-  if (cnt != 0) {
-    sched.start();
-    while (sched.run_main(10)) {
-      // empty;
-    }
-    sched.finish();
-  }
-}
-
-TEST(Mtproto, encrypted_config) {
-  td::string data =
-      "   hO//tt \b\n\tiwPVovorKtIYtQ8y2ik7CqfJiJ4pJOCLRa4fBmNPixuRPXnBFF/3mTAAZoSyHq4SNylGHz0Cv1/"
-      "FnWWdEV+BPJeOTk+ARHcNkuJBt0CqnfcVCoDOpKqGyq0U31s2MOpQvHgAG+Tlpg02syuH0E4dCGRw5CbJPARiynteb9y5fT5x/"
-      "kmdp6BMR5tWQSQF0liH16zLh8BDSIdiMsikdcwnAvBwdNhRqQBqGx9MTh62MDmlebjtczE9Gz0z5cscUO2yhzGdphgIy6SP+"
-      "bwaqLWYF0XdPGjKLMUEJW+rou6fbL1t/EUXPtU0XmQAnO0Fh86h+AqDMOe30N4qKrPQ==   ";
-  td::telegram_api::object_ptr<td::telegram_api::help_configSimple> config = td::decode_config(data).move_as_ok();
-}
-
-class TestPingActor final : public td::Actor {
- public:
-  TestPingActor(td::IPAddress ip_address, td::Status *result) : ip_address_(ip_address), result_(result) {
-  }
-
- private:
-  td::IPAddress ip_address_;
-  td::unique_ptr<td::mtproto::PingConnection> ping_connection_;
-  td::Status *result_;
-  bool is_inited_ = false;
-
-  void start_up() final {
-    auto r_socket = td::SocketFd::open(ip_address_);
-    if (r_socket.is_error()) {
-      LOG(ERROR) << "Failed to open socket: " << r_socket.error();
-      return stop();
-    }
-
-    ping_connection_ = td::mtproto::PingConnection::create_req_pq(
-        td::mtproto::RawConnection::create(
-            ip_address_, td::BufferedFd<td::SocketFd>(r_socket.move_as_ok()),
-            td::mtproto::TransportType{td::mtproto::TransportType::Tcp, 0, td::mtproto::ProxySecret()}, nullptr),
-        3);
-
-    td::Scheduler::subscribe(ping_connection_->get_poll_info().extract_pollable_fd(this));
-    is_inited_ = true;
-    set_timeout_in(10);
-    yield();
-  }
-
-  void tear_down() final {
-    if (is_inited_) {
-      td::Scheduler::unsubscribe_before_close(ping_connection_->get_poll_info().get_pollable_fd_ref());
-    }
-    td::Scheduler::instance()->finish();
-  }
-
-  void loop() final {
-    auto status = ping_connection_->flush();
-    if (status.is_error()) {
-      *result_ = std::move(status);
-      return stop();
-    }
-    if (ping_connection_->was_pong()) {
-      LOG(INFO) << "Receive pong";
-      return stop();
-    }
-  }
-
-  void timeout_expired() final {
-    *result_ = td::Status::Error("Timeout expired");
-    stop();
-  }
-};
-
-static td::IPAddress get_default_ip_address() {
-  td::IPAddress ip_address;
-#if TD_EMSCRIPTEN
-  ip_address.init_host_port("venus.web.telegram.org/apiws", 443).ensure();
-#else
-  ip_address.init_ipv4_port("149.154.167.40", 80).ensure();
-#endif
-  return ip_address;
-}
-
-static td::int32 get_default_dc_id() {
-  return 10002;
-}
-
-class Mtproto_ping final : public td::Test {
- public:
-  using Test::Test;
-  bool step() final {
-    if (!is_inited_) {
-      sched_.create_actor_unsafe<TestPingActor>(0, "Pinger", get_default_ip_address(), &result_).release();
-      sched_.start();
-      is_inited_ = true;
-    }
-
-    bool ret = sched_.run_main(10);
-    if (ret) {
-      return true;
-    }
-    sched_.finish();
-    if (result_.is_error()) {
-      LOG(ERROR) << result_;
-    }
-    return false;
-  }
-
- private:
-  bool is_inited_ = false;
-  td::ConcurrentScheduler sched_{0, 0};
-  td::Status result_;
-};
-td::RegisterTest<Mtproto_ping> mtproto_ping("Mtproto_ping");
-
-class HandshakeContext final : public td::mtproto::AuthKeyHandshakeContext {
- public:
-  td::mtproto::DhCallback *get_dh_callback() final {
-    return nullptr;
-  }
-  td::mtproto::PublicRsaKeyInterface *get_public_rsa_key_interface() final {
-    return public_rsa_key_.get();
-  }
-
- private:
-  std::shared_ptr<td::mtproto::PublicRsaKeyInterface> public_rsa_key_ = td::PublicRsaKeySharedMain::create(true);
-};
-
-class HandshakeTestActor final : public td::Actor {
- public:
-  HandshakeTestActor(td::int32 dc_id, td::Status *result) : dc_id_(dc_id), result_(result) {
-  }
-
- private:
-  td::int32 dc_id_ = 0;
-  td::Status *result_;
-  bool wait_for_raw_connection_ = false;
-  td::unique_ptr<td::mtproto::RawConnection> raw_connection_;
-  bool wait_for_handshake_ = false;
-  td::unique_ptr<td::mtproto::AuthKeyHandshake> handshake_;
-  td::Status status_;
-  bool wait_for_result_ = false;
-
-  void tear_down() final {
-    if (raw_connection_) {
-      raw_connection_->close();
-    }
-    finish(td::Status::Error("Interrupted"));
-  }
-  void loop() final {
-    if (!wait_for_raw_connection_ && !raw_connection_) {
-      auto ip_address = get_default_ip_address();
-      auto r_socket = td::SocketFd::open(ip_address);
-      if (r_socket.is_error()) {
-        finish(td::Status::Error(PSTRING() << "Failed to open socket: " << r_socket.error()));
-        return stop();
-      }
-
-      raw_connection_ = td::mtproto::RawConnection::create(
-          ip_address, td::BufferedFd<td::SocketFd>(r_socket.move_as_ok()),
-          td::mtproto::TransportType{td::mtproto::TransportType::Tcp, 0, td::mtproto::ProxySecret()}, nullptr);
-    }
-    if (!wait_for_handshake_ && !handshake_) {
-      handshake_ = td::make_unique<td::mtproto::AuthKeyHandshake>(dc_id_, 3600);
-    }
-    if (raw_connection_ && handshake_) {
-      if (wait_for_result_) {
-        wait_for_result_ = false;
-        if (status_.is_error()) {
-          finish(std::move(status_));
-          return stop();
-        }
-        if (!handshake_->is_ready_for_finish()) {
-          finish(td::Status::Error("Key is not ready.."));
-          return stop();
-        }
-        finish(td::Status::OK());
-        return stop();
-      }
-
-      wait_for_result_ = true;
-      td::create_actor<td::mtproto::HandshakeActor>(
-          "HandshakeActor", std::move(handshake_), std::move(raw_connection_), td::make_unique<HandshakeContext>(),
-          10.0,
-          td::PromiseCreator::lambda(
-              [actor_id = actor_id(this)](td::Result<td::unique_ptr<td::mtproto::RawConnection>> raw_connection) {
-                td::send_closure(actor_id, &HandshakeTestActor::on_connection, std::move(raw_connection), 1);
-              }),
-          td::PromiseCreator::lambda(
-              [actor_id = actor_id(this)](td::Result<td::unique_ptr<td::mtproto::AuthKeyHandshake>> handshake) {
-                td::send_closure(actor_id, &HandshakeTestActor::on_handshake, std::move(handshake), 1);
-              }))
-          .release();
-      wait_for_raw_connection_ = true;
-      wait_for_handshake_ = true;
-    }
-  }
-
-  void on_connection(td::Result<td::unique_ptr<td::mtproto::RawConnection>> r_raw_connection, bool dummy) {
-    CHECK(wait_for_raw_connection_);
-    wait_for_raw_connection_ = false;
-    if (r_raw_connection.is_ok()) {
-      raw_connection_ = r_raw_connection.move_as_ok();
-      status_ = td::Status::OK();
-    } else {
-      status_ = r_raw_connection.move_as_error();
-    }
-    // TODO: save error
-    loop();
-  }
-
-  void on_handshake(td::Result<td::unique_ptr<td::mtproto::AuthKeyHandshake>> r_handshake, bool dummy) {
-    CHECK(wait_for_handshake_);
-    wait_for_handshake_ = false;
-    CHECK(r_handshake.is_ok());
-    handshake_ = r_handshake.move_as_ok();
-    loop();
-  }
-
-  void finish(td::Status status) {
-    if (!result_) {
-      return;
-    }
-    *result_ = std::move(status);
-    result_ = nullptr;
-    td::Scheduler::instance()->finish();
-  }
-};
-
-class Mtproto_handshake final : public td::Test {
- public:
-  using Test::Test;
-  bool step() final {
-    if (!is_inited_) {
-      sched_.create_actor_unsafe<HandshakeTestActor>(0, "HandshakeTestActor", get_default_dc_id(), &result_).release();
-      sched_.start();
-      is_inited_ = true;
-    }
-
-    bool ret = sched_.run_main(10);
-    if (ret) {
-      return true;
-    }
-    sched_.finish();
-    if (result_.is_error()) {
-      LOG(ERROR) << result_;
-    }
-    return false;
-  }
-
- private:
-  bool is_inited_ = false;
-  td::ConcurrentScheduler sched_{0, 0};
-  td::Status result_;
-};
-td::RegisterTest<Mtproto_handshake> mtproto_handshake("Mtproto_handshake");
-
-class Socks5TestActor final : public td::Actor {
- public:
-  void start_up() final {
-    auto promise =
-        td::PromiseCreator::lambda([actor_id = actor_id(this)](td::Result<td::BufferedFd<td::SocketFd>> res) {
-          td::send_closure(actor_id, &Socks5TestActor::on_result, std::move(res), false);
-        });
-
-    class Callback final : public td::TransparentProxy::Callback {
-     public:
-      explicit Callback(td::Promise<td::BufferedFd<td::SocketFd>> promise) : promise_(std::move(promise)) {
-      }
-      void set_result(td::Result<td::BufferedFd<td::SocketFd>> result) final {
-        promise_.set_result(std::move(result));
-      }
-      void on_connected() final {
-      }
-
-     private:
-      td::Promise<td::BufferedFd<td::SocketFd>> promise_;
-    };
-
-    td::IPAddress socks5_ip;
-    socks5_ip.init_ipv4_port("131.191.89.104", 43077).ensure();
-    td::IPAddress mtproto_ip_address = get_default_ip_address();
-
-    auto r_socket = td::SocketFd::open(socks5_ip);
-    if (r_socket.is_error()) {
-      return promise.set_error(td::Status::Error(PSTRING() << "Failed to open socket: " << r_socket.error()));
-    }
-    td::create_actor<td::Socks5>("Socks5", r_socket.move_as_ok(), mtproto_ip_address, "", "",
-                                 td::make_unique<Callback>(std::move(promise)), actor_shared(this))
-        .release();
-  }
-
- private:
-  void on_result(td::Result<td::BufferedFd<td::SocketFd>> res, bool dummy) {
-    res.ensure();
-    td::Scheduler::instance()->finish();
-  }
-};
-
-TEST(Mtproto, socks5) {
-  return;
-  int threads_n = 0;
-  td::ConcurrentScheduler sched(threads_n, 0);
-
-  sched.create_actor_unsafe<Socks5TestActor>(0, "Socks5TestActor").release();
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty;
-  }
-  sched.finish();
-}
-
-TEST(Mtproto, notifications) {
-  td::vector<td::string> pushes = {
-      "eyJwIjoiSkRnQ3NMRWxEaWhyVWRRN1pYM3J1WVU4TlRBMFhMb0N6UWRNdzJ1cWlqMkdRbVR1WXVvYXhUeFJHaG1QQm8yVElYZFBzX2N3b2RIb3lY"
-      "b2drVjM1dVl0UzdWeElNX1FNMDRKMG1mV3ZZWm4zbEtaVlJ0aFVBNGhYUWlaN0pfWDMyZDBLQUlEOWgzRnZwRjNXUFRHQWRaVkdFYzg3bnFPZ3hD"
-      "NUNMRkM2SU9fZmVqcEpaV2RDRlhBWWpwc1k2aktrbVNRdFZ1MzE5ZW04UFVieXZudFpfdTNud2hjQ0czMk96TGp4S1kyS1lzU21JZm1GMzRmTmw1"
-      "QUxaa2JvY2s2cE5rZEdrak9qYmRLckJyU0ZtWU8tQ0FsRE10dEplZFFnY1U5bVJQdU80b1d2NG5sb1VXS19zSlNTaXdIWEZyb1pWTnZTeFJ0Z1dN"
-      "ZyJ9",
-      "eyJwIjoiSkRnQ3NMRWxEaWlZby1GRWJndk9WaTFkUFdPVmZndzBBWHYwTWNzWDFhWEtNZC03T1Q2WWNfT0taRURHZDJsZ0h0WkhMSllyVG50RE95"
-      "TkY1aXJRQlZ4UUFLQlRBekhPTGZIS3BhQXdoaWd5b3NQd0piWnJVV2xRWmh4eEozUFUzZjBNRTEwX0xNT0pFN0xsVUFaY2dabUNaX2V1QmNPZWNK"
-      "VERxRkpIRGZjN2pBOWNrcFkyNmJRT2dPUEhCeHlEMUVrNVdQcFpLTnlBODVuYzQ1eHFPdERqcU5aVmFLU3pKb2VIcXBQMnJqR29kN2M5YkxsdGd5"
-      "Q0NGd2NBU3dJeDc3QWNWVXY1UnVZIn0"};
-  td::string key =
-      "uBa5yu01a-nJJeqsR3yeqMs6fJLYXjecYzFcvS6jIwS3nefBIr95LWrTm-IbRBNDLrkISz1Sv0KYpDzhU8WFRk1D0V_"
-      "qyO7XsbDPyrYxRBpGxofJUINSjb1uCxoSdoh1_F0UXEA2fWWKKVxL0DKUQssZfbVj3AbRglsWpH-jDK1oc6eBydRiS3i4j-"
-      "H0yJkEMoKRgaF9NaYI4u26oIQ-Ez46kTVU-R7e3acdofOJKm7HIKan_5ZMg82Dvec2M6vc_"
-      "I54Vs28iBx8IbBO1y5z9WSScgW3JCvFFKP2MXIu7Jow5-cpUx6jXdzwRUb9RDApwAFKi45zpv8eb3uPCDAmIQ";
-  td::vector<td::string> decrypted_payloads = {
-      "eyJsb2Nfa2V5IjoiTUVTU0FHRV9URVhUIiwibG9jX2FyZ3MiOlsiQXJzZW55IFNtaXJub3YiLCJhYmNkZWZnIl0sImN1c3RvbSI6eyJtc2dfaWQi"
-      "OiI1OTAwNDciLCJmcm9tX2lkIjoiNjI4MTQifSwiYmFkZ2UiOiI0MDkifQ",
-      "eyJsb2Nfa2V5IjoiIiwibG9jX2FyZ3MiOltdLCJjdXN0b20iOnsiY2hhbm5lbF9pZCI6IjExNzY4OTU0OTciLCJtYXhfaWQiOiIxMzU5In0sImJh"
-      "ZGdlIjoiMCJ9"};
-  key = td::base64url_decode(key).move_as_ok();
-
-  for (size_t i = 0; i < pushes.size(); i++) {
-    auto push = td::base64url_decode(pushes[i]).move_as_ok();
-    auto decrypted_payload = td::base64url_decode(decrypted_payloads[i]).move_as_ok();
-
-    auto key_id = td::mtproto::DhHandshake::calc_key_id(key);
-    ASSERT_EQ(key_id, td::NotificationManager::get_push_receiver_id(push).ok());
-    ASSERT_EQ(decrypted_payload, td::NotificationManager::decrypt_push(key_id, key, push).ok());
-  }
-}
-
-class FastPingTestActor final : public td::Actor {
- public:
-  explicit FastPingTestActor(td::Status *result) : result_(result) {
-  }
-
- private:
-  td::Status *result_;
-  td::unique_ptr<td::mtproto::RawConnection> connection_;
-  td::unique_ptr<td::mtproto::AuthKeyHandshake> handshake_;
-  td::ActorOwn<> fast_ping_;
-  int iteration_{0};
-
-  void start_up() final {
-    // Run handshake to create key and salt
-    auto ip_address = get_default_ip_address();
-    auto r_socket = td::SocketFd::open(ip_address);
-    if (r_socket.is_error()) {
-      *result_ = td::Status::Error(PSTRING() << "Failed to open socket: " << r_socket.error());
-      return stop();
-    }
-
-    auto raw_connection = td::mtproto::RawConnection::create(
-        ip_address, td::BufferedFd<td::SocketFd>(r_socket.move_as_ok()),
-        td::mtproto::TransportType{td::mtproto::TransportType::Tcp, 0, td::mtproto::ProxySecret()}, nullptr);
-    auto handshake = td::make_unique<td::mtproto::AuthKeyHandshake>(get_default_dc_id(), 60 * 100 /*temp*/);
-    td::create_actor<td::mtproto::HandshakeActor>(
-        "HandshakeActor", std::move(handshake), std::move(raw_connection), td::make_unique<HandshakeContext>(), 10.0,
-        td::PromiseCreator::lambda(
-            [actor_id = actor_id(this)](td::Result<td::unique_ptr<td::mtproto::RawConnection>> raw_connection) {
-              td::send_closure(actor_id, &FastPingTestActor::on_connection, std::move(raw_connection), 1);
-            }),
-        td::PromiseCreator::lambda(
-            [actor_id = actor_id(this)](td::Result<td::unique_ptr<td::mtproto::AuthKeyHandshake>> handshake) {
-              td::send_closure(actor_id, &FastPingTestActor::on_handshake, std::move(handshake), 1);
-            }))
-        .release();
-  }
-
-  void on_connection(td::Result<td::unique_ptr<td::mtproto::RawConnection>> r_raw_connection, bool dummy) {
-    if (r_raw_connection.is_error()) {
-      *result_ = r_raw_connection.move_as_error();
-      LOG(INFO) << "Receive " << *result_ << " instead of a connection";
-      return stop();
-    }
-    connection_ = r_raw_connection.move_as_ok();
-    loop();
-  }
-
-  void on_handshake(td::Result<td::unique_ptr<td::mtproto::AuthKeyHandshake>> r_handshake, bool dummy) {
-    if (r_handshake.is_error()) {
-      *result_ = r_handshake.move_as_error();
-      LOG(INFO) << "Receive " << *result_ << " instead of a handshake";
-      return stop();
-    }
-    handshake_ = r_handshake.move_as_ok();
-    loop();
-  }
-
-  void on_raw_connection(td::Result<td::unique_ptr<td::mtproto::RawConnection>> r_connection) {
-    if (r_connection.is_error()) {
-      *result_ = r_connection.move_as_error();
-      LOG(INFO) << "Receive " << *result_ << " instead of a handshake";
-      return stop();
-    }
-    connection_ = r_connection.move_as_ok();
-    LOG(INFO) << "RTT: " << connection_->extra().rtt;
-    connection_->extra().rtt = 0;
-    loop();
-  }
-
-  void loop() final {
-    if (handshake_ && connection_) {
-      LOG(INFO) << "Iteration " << iteration_;
-      if (iteration_ == 6) {
-        return stop();
-      }
-      td::unique_ptr<td::mtproto::AuthData> auth_data;
-      if (iteration_ % 2 == 0) {
-        auth_data = td::make_unique<td::mtproto::AuthData>();
-        auth_data->set_tmp_auth_key(handshake_->get_auth_key());
-        auth_data->reset_server_time_difference(handshake_->get_server_time_diff());
-        auth_data->set_server_salt(handshake_->get_server_salt(), td::Time::now());
-        auth_data->set_future_salts({td::mtproto::ServerSalt{0u, 1e20, 1e30}}, td::Time::now());
-        auth_data->set_use_pfs(true);
-        td::uint64 session_id = 0;
-        do {
-          td::Random::secure_bytes(reinterpret_cast<td::uint8 *>(&session_id), sizeof(session_id));
-        } while (session_id == 0);
-        auth_data->set_session_id(session_id);
-      }
-      iteration_++;
-      fast_ping_ = create_ping_actor(
-          td::Slice(), std::move(connection_), std::move(auth_data),
-          td::PromiseCreator::lambda(
-              [actor_id = actor_id(this)](td::Result<td::unique_ptr<td::mtproto::RawConnection>> r_raw_connection) {
-                td::send_closure(actor_id, &FastPingTestActor::on_raw_connection, std::move(r_raw_connection));
-              }),
-          td::ActorShared<>());
-    }
-  }
-
-  void tear_down() final {
-    td::Scheduler::instance()->finish();
-  }
-};
-
-class Mtproto_FastPing final : public td::Test {
- public:
-  using Test::Test;
-  bool step() final {
-    if (!is_inited_) {
-      sched_.create_actor_unsafe<FastPingTestActor>(0, "FastPingTestActor", &result_).release();
-      sched_.start();
-      is_inited_ = true;
-    }
-
-    bool ret = sched_.run_main(10);
-    if (ret) {
-      return true;
-    }
-    sched_.finish();
-    if (result_.is_error()) {
-      LOG(ERROR) << result_;
-    }
-    return false;
-  }
-
- private:
-  bool is_inited_ = false;
-  td::ConcurrentScheduler sched_{0, 0};
-  td::Status result_;
-};
-td::RegisterTest<Mtproto_FastPing> mtproto_fastping("Mtproto_FastPing");
-
-TEST(Mtproto, Grease) {
-  td::string s(10000, '0');
-  td::mtproto::Grease::init(s);
-  for (auto c : s) {
-    CHECK((c & 0xF) == 0xA);
-  }
-  for (size_t i = 1; i < s.size(); i += 2) {
-    CHECK(s[i] != s[i - 1]);
-  }
-}
-
-TEST(Mtproto, TlsTransport) {
-  int threads_n = 1;
-  td::ConcurrentScheduler sched(threads_n, 0);
-  {
-    auto guard = sched.get_main_guard();
-    class RunTest final : public td::Actor {
-      void start_up() final {
-        class Callback final : public td::TransparentProxy::Callback {
-         public:
-          void set_result(td::Result<td::BufferedFd<td::SocketFd>> result) final {
-            if (result.is_ok()) {
-              LOG(ERROR) << "Unexpectedly succeeded to connect to MTProto proxy";
-            } else if (result.error().message() != "Response hash mismatch") {
-              LOG(ERROR) << "Receive unexpected result " << result.error();
-            }
-            td::Scheduler::instance()->finish();
-          }
-          void on_connected() final {
-          }
-        };
-
-        const td::string domain = "www.google.com";
-        td::IPAddress ip_address;
-        auto resolve_status = ip_address.init_host_port(domain, 443);
-        if (resolve_status.is_error()) {
-          LOG(ERROR) << resolve_status;
-          td::Scheduler::instance()->finish();
-          return;
-        }
-        auto r_socket = td::SocketFd::open(ip_address);
-        if (r_socket.is_error()) {
-          LOG(ERROR) << "Failed to open socket: " << r_socket.error();
-          td::Scheduler::instance()->finish();
-          return;
-        }
-        td::create_actor<td::mtproto::TlsInit>("TlsInit", r_socket.move_as_ok(), domain, "0123456789secret",
-                                               td::make_unique<Callback>(), td::ActorShared<>(),
-                                               td::Clocks::system() - td::Time::now())
-            .release();
-      }
-    };
-    td::create_actor<RunTest>("RunTest").release();
-  }
-
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
-
-TEST(Mtproto, RSA) {
-  auto pem = td::Slice(
-      "-----BEGIN RSA PUBLIC KEY-----\n"
-      "MIIBCgKCAQEAr4v4wxMDXIaMOh8bayF/NyoYdpcysn5EbjTIOZC0RkgzsRj3SGlu\n"
-      "52QSz+ysO41dQAjpFLgxPVJoOlxXokaOq827IfW0bGCm0doT5hxtedu9UCQKbE8j\n"
-      "lDOk+kWMXHPZFJKWRgKgTu9hcB3y3Vk+JFfLpq3d5ZB48B4bcwrRQnzkx5GhWOFX\n"
-      "x73ZgjO93eoQ2b/lDyXxK4B4IS+hZhjzezPZTI5upTRbs5ljlApsddsHrKk6jJNj\n"
-      "8Ygs/ps8e6ct82jLXbnndC9s8HjEvDvBPH9IPjv5JUlmHMBFZ5vFQIfbpo0u0+1P\n"
-      "n6bkEi5o7/ifoyVv2pAZTRwppTz0EuXD8QIDAQAB\n"
-      "-----END RSA PUBLIC KEY-----");
-  auto rsa = td::mtproto::RSA::from_pem_public_key(pem).move_as_ok();
-  ASSERT_EQ(-7596991558377038078, rsa.get_fingerprint());
-  ASSERT_EQ(256u, rsa.size());
-
-  td::string to(256, '\0');
-  rsa.encrypt(pem.substr(0, 256), to);
-  ASSERT_EQ("U2nJEtB2AgpHrm3HB0yhpTQgb0wbesi9Pv/W1v/vULU=", td::base64_encode(td::sha256(to)));
-}
diff --git a/third-party/td/td/test/online.cpp b/third-party/td/td/test/online.cpp
deleted file mode 100644
index a85858b91e..0000000000
--- a/third-party/td/td/test/online.cpp
+++ /dev/null
@@ -1,632 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/ClientActor.h"
-#include "td/telegram/Log.h"
-#include "td/telegram/td_api_json.h"
-#include "td/telegram/TdCallback.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-#include "td/actor/MultiPromise.h"
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/crypto.h"
-#include "td/utils/FileLog.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/misc.h"
-#include "td/utils/OptionParser.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/signals.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-
-#include <iostream>
-#include <map>
-#include <memory>
-
-namespace td {
-
-template <class T>
-static void check_td_error(T &result) {
-  LOG_CHECK(result->get_id() != td::td_api::error::ID) << to_string(result);
-}
-
-class TestClient : public Actor {
- public:
-  explicit TestClient(td::string name) : name_(std::move(name)) {
-  }
-  struct Update {
-    td::uint64 id;
-    td::tl_object_ptr<td::td_api::Object> object;
-    Update(td::uint64 id, td::tl_object_ptr<td::td_api::Object> object) : id(id), object(std::move(object)) {
-    }
-  };
-  class Listener {
-   public:
-    Listener() = default;
-    Listener(const Listener &) = delete;
-    Listener &operator=(const Listener &) = delete;
-    Listener(Listener &&) = delete;
-    Listener &operator=(Listener &&) = delete;
-    virtual ~Listener() = default;
-    virtual void start_listen(TestClient *client) {
-    }
-    virtual void stop_listen() {
-    }
-    virtual void on_update(std::shared_ptr<Update> update) = 0;
-  };
-  struct RemoveListener {
-    void operator()(Listener *listener) {
-      send_closure(self, &TestClient::remove_listener, listener);
-    }
-    ActorId<TestClient> self;
-  };
-  using ListenerToken = std::unique_ptr<Listener, RemoveListener>;
-  void close(td::Promise<> close_promise) {
-    close_promise_ = std::move(close_promise);
-    td_client_.reset();
-  }
-
-  td::unique_ptr<td::TdCallback> make_td_callback() {
-    class TdCallbackImpl : public td::TdCallback {
-     public:
-      explicit TdCallbackImpl(td::ActorId<TestClient> client) : client_(client) {
-      }
-      void on_result(td::uint64 id, td::tl_object_ptr<td::td_api::Object> result) override {
-        send_closure(client_, &TestClient::on_result, id, std::move(result));
-      }
-      void on_error(td::uint64 id, td::tl_object_ptr<td::td_api::error> error) override {
-        send_closure(client_, &TestClient::on_error, id, std::move(error));
-      }
-      TdCallbackImpl(const TdCallbackImpl &) = delete;
-      TdCallbackImpl &operator=(const TdCallbackImpl &) = delete;
-      TdCallbackImpl(TdCallbackImpl &&) = delete;
-      TdCallbackImpl &operator=(TdCallbackImpl &&) = delete;
-      ~TdCallbackImpl() override {
-        send_closure(client_, &TestClient::on_closed);
-      }
-
-     private:
-      td::ActorId<TestClient> client_;
-    };
-    return td::make_unique<TdCallbackImpl>(actor_id(this));
-  }
-
-  void add_listener(td::unique_ptr<Listener> listener) {
-    auto *ptr = listener.get();
-    listeners_.push_back(std::move(listener));
-    ptr->start_listen(this);
-  }
-  void remove_listener(Listener *listener) {
-    pending_remove_.push_back(listener);
-  }
-  void do_pending_remove_listeners() {
-    for (auto listener : pending_remove_) {
-      do_remove_listener(listener);
-    }
-    pending_remove_.clear();
-  }
-  void do_remove_listener(Listener *listener) {
-    for (size_t i = 0; i < listeners_.size(); i++) {
-      if (listeners_[i].get() == listener) {
-        listener->stop_listen();
-        listeners_.erase(listeners_.begin() + i);
-        break;
-      }
-    }
-  }
-
-  void on_result(td::uint64 id, td::tl_object_ptr<td::td_api::Object> result) {
-    on_update(std::make_shared<Update>(id, std::move(result)));
-  }
-  void on_error(td::uint64 id, td::tl_object_ptr<td::td_api::error> error) {
-    on_update(std::make_shared<Update>(id, std::move(error)));
-  }
-  void on_update(std::shared_ptr<Update> update) {
-    for (auto &listener : listeners_) {
-      listener->on_update(update);
-    }
-    do_pending_remove_listeners();
-  }
-
-  void on_closed() {
-    stop();
-  }
-
-  void start_up() override {
-    auto old_context = set_context(std::make_shared<td::ActorContext>());
-    set_tag(name_);
-    LOG(INFO) << "START UP!";
-
-    td_client_ = td::create_actor<td::ClientActor>("Td-proxy", make_td_callback());
-  }
-
-  td::ActorOwn<td::ClientActor> td_client_;
-
-  td::string name_;
-
- private:
-  td::vector<td::unique_ptr<Listener>> listeners_;
-  td::vector<Listener *> pending_remove_;
-
-  td::Promise<> close_promise_;
-};
-
-class Task : public TestClient::Listener {
- public:
-  void on_update(std::shared_ptr<TestClient::Update> update) override {
-    auto it = sent_queries_.find(update->id);
-    if (it != sent_queries_.end()) {
-      it->second.set_value(std::move(update->object));
-      sent_queries_.erase(it);
-    }
-    process_update(update);
-  }
-  void start_listen(TestClient *client) override {
-    client_ = client;
-    start_up();
-  }
-  virtual void process_update(std::shared_ptr<TestClient::Update> update) {
-  }
-
-  template <class FunctionT, class CallbackT>
-  void send_query(td::tl_object_ptr<FunctionT> function, CallbackT callback) {
-    auto id = current_query_id_++;
-
-    using ResultT = typename FunctionT::ReturnType;
-    sent_queries_[id] =
-        [callback = Promise<ResultT>(std::move(callback))](Result<tl_object_ptr<td_api::Object>> r_obj) mutable {
-          TRY_RESULT_PROMISE(callback, obj, std::move(r_obj));
-          if (obj->get_id() == td::td_api::error::ID) {
-            auto err = move_tl_object_as<td_api::error>(std::move(obj));
-            callback.set_error(Status::Error(err->code_, err->message_));
-            return;
-          }
-          callback.set_value(move_tl_object_as<typename ResultT::element_type>(std::move(obj)));
-        };
-    send_closure(client_->td_client_, &td::ClientActor::request, id, std::move(function));
-  }
-
- protected:
-  std::map<td::uint64, Promise<td::tl_object_ptr<td::td_api::Object>>> sent_queries_;
-  TestClient *client_ = nullptr;
-  td::uint64 current_query_id_ = 1;
-
-  virtual void start_up() {
-  }
-  void stop() {
-    client_->remove_listener(this);
-    client_ = nullptr;
-  }
-  bool is_alive() const {
-    return client_ != nullptr;
-  }
-};
-
-class InitTask : public Task {
- public:
-  struct Options {
-    string name;
-    int32 api_id;
-    string api_hash;
-  };
-  InitTask(Options options, td::Promise<> promise) : options_(std::move(options)), promise_(std::move(promise)) {
-  }
-
- private:
-  Options options_;
-  td::Promise<> promise_;
-
-  void start_up() override {
-    send_query(td::make_tl_object<td::td_api::getOption>("version"),
-               [](td::Result<td::td_api::object_ptr<td::td_api::OptionValue>> res) {
-                 LOG(INFO) << td::td_api::to_string(res.ok());
-               });
-  }
-  void process_authorization_state(td::tl_object_ptr<td::td_api::Object> authorization_state) {
-    td::tl_object_ptr<td::td_api::Function> function;
-    switch (authorization_state->get_id()) {
-      case td::td_api::authorizationStateReady::ID:
-        promise_.set_value({});
-        stop();
-        break;
-      case td::td_api::authorizationStateWaitTdlibParameters::ID: {
-        auto request = td::td_api::make_object<td::td_api::setTdlibParameters>();
-        request->use_test_dc_ = true;
-        request->database_directory_ = options_.name + TD_DIR_SLASH;
-        request->use_message_database_ = true;
-        request->use_secret_chats_ = true;
-        request->api_id_ = options_.api_id;
-        request->api_hash_ = options_.api_hash;
-        request->system_language_code_ = "en";
-        request->device_model_ = "Desktop";
-        request->application_version_ = "tdclient-test";
-        send(std::move(request));
-        break;
-      }
-      default:
-        LOG(ERROR) << "???";
-        promise_.set_error(
-            Status::Error(PSLICE() << "Unexpected authorization state " << to_string(authorization_state)));
-        stop();
-        break;
-    }
-  }
-  template <class T>
-  void send(T &&query) {
-    send_query(std::move(query), [this](td::Result<typename T::element_type::ReturnType> res) {
-      if (is_alive()) {
-        res.ensure();
-      }
-    });
-  }
-  void process_update(std::shared_ptr<TestClient::Update> update) override {
-    if (!update->object) {
-      return;
-    }
-    if (update->object->get_id() == td::td_api::updateAuthorizationState::ID) {
-      auto update_authorization_state = td::move_tl_object_as<td::td_api::updateAuthorizationState>(update->object);
-      process_authorization_state(std::move(update_authorization_state->authorization_state_));
-    }
-  }
-};
-
-class GetMe : public Task {
- public:
-  struct Result {
-    int64 user_id;
-    int64 chat_id;
-  };
-  explicit GetMe(Promise<Result> promise) : promise_(std::move(promise)) {
-  }
-  void start_up() override {
-    send_query(
-        td::make_tl_object<td::td_api::getMe>(),
-        [this](td::Result<td::td_api::object_ptr<td::td_api::user>> res) { with_user_id(res.move_as_ok()->id_); });
-  }
-
- private:
-  Promise<Result> promise_;
-  Result result_;
-
-  void with_user_id(int64 user_id) {
-    result_.user_id = user_id;
-    send_query(
-        td::make_tl_object<td::td_api::createPrivateChat>(user_id, false),
-        [this](td::Result<td::td_api::object_ptr<td::td_api::chat>> res) { with_chat_id(res.move_as_ok()->id_); });
-  }
-
-  void with_chat_id(int64 chat_id) {
-    result_.chat_id = chat_id;
-    promise_.set_value(std::move(result_));
-    stop();
-  }
-};
-
-class UploadFile : public Task {
- public:
-  struct Result {
-    std::string content;
-    std::string remote_id;
-  };
-  UploadFile(std::string dir, std::string content, int64 chat_id, Promise<Result> promise)
-      : dir_(std::move(dir)), content_(std::move(content)), chat_id_(std::move(chat_id)), promise_(std::move(promise)) {
-  }
-  void start_up() override {
-    auto hash = hex_encode(sha256(content_)).substr(0, 10);
-    content_path_ = dir_ + TD_DIR_SLASH + hash + ".data";
-    id_path_ = dir_ + TD_DIR_SLASH + hash + ".id";
-
-    auto r_id = read_file(id_path_);
-    if (r_id.is_ok() && r_id.ok().size() > 10) {
-      auto id = r_id.move_as_ok();
-      LOG(ERROR) << "Receive file from cache";
-      Result res;
-      res.content = std::move(content_);
-      res.remote_id = id.as_slice().str();
-      promise_.set_value(std::move(res));
-      stop();
-      return;
-    }
-
-    write_file(content_path_, content_).ensure();
-
-    send_query(td::make_tl_object<td::td_api::sendMessage>(
-                   chat_id_, 0, nullptr, nullptr, nullptr,
-                   td::make_tl_object<td::td_api::inputMessageDocument>(
-                       td::make_tl_object<td::td_api::inputFileLocal>(content_path_), nullptr, true,
-                       td::make_tl_object<td::td_api::formattedText>("tag", td::Auto()))),
-               [this](td::Result<td::td_api::object_ptr<td::td_api::message>> res) { with_message(res.move_as_ok()); });
-  }
-
- private:
-  std::string dir_;
-  std::string content_path_;
-  std::string id_path_;
-  std::string content_;
-  int64 chat_id_;
-  Promise<Result> promise_;
-  int64 file_id_{0};
-
-  void with_message(td::tl_object_ptr<td_api::message> message) {
-    CHECK(message->content_->get_id() == td::td_api::messageDocument::ID);
-    auto messageDocument = td::move_tl_object_as<td::td_api::messageDocument>(message->content_);
-    on_file(*messageDocument->document_->document_, true);
-  }
-
-  void on_file(const td_api::file &file, bool force = false) {
-    if (force) {
-      file_id_ = file.id_;
-    }
-    if (file.id_ != file_id_) {
-      return;
-    }
-    if (file.remote_->is_uploading_completed_) {
-      Result res;
-      res.content = std::move(content_);
-      res.remote_id = file.remote_->id_;
-
-      unlink(content_path_).ignore();
-      atomic_write_file(id_path_, res.remote_id).ignore();
-
-      promise_.set_value(std::move(res));
-      stop();
-    }
-  }
-
-  void process_update(std::shared_ptr<TestClient::Update> update) override {
-    if (!update->object) {
-      return;
-    }
-    if (update->object->get_id() == td::td_api::updateFile::ID) {
-      auto updateFile = td::move_tl_object_as<td::td_api::updateFile>(update->object);
-      on_file(*updateFile->file_);
-    }
-  }
-};
-
-class TestDownloadFile : public Task {
- public:
-  TestDownloadFile(std::string remote_id, std::string content, Promise<Unit> promise)
-      : remote_id_(std::move(remote_id)), content_(std::move(content)), promise_(std::move(promise)) {
-  }
-  void start_up() override {
-    send_query(td::make_tl_object<td::td_api::getRemoteFile>(remote_id_, nullptr),
-               [this](td::Result<td::td_api::object_ptr<td::td_api::file>> res) { start_file(*res.ok()); });
-  }
-
- private:
-  std::string remote_id_;
-  std::string content_;
-  Promise<Unit> promise_;
-  struct Range {
-    size_t begin;
-    size_t end;
-  };
-  int32 file_id_{0};
-  std::vector<Range> ranges_;
-
-  void start_file(const td_api::file &file) {
-    LOG(ERROR) << "Start";
-    file_id_ = file.id_;
-    //    CHECK(!file.local_->is_downloading_active_);
-    //    CHECK(!file.local_->is_downloading_completed_);
-    //    CHECK(file.local_->download_offset_ == 0);
-    if (!file.local_->path_.empty()) {
-      unlink(file.local_->path_).ignore();
-    }
-
-    auto size = narrow_cast<size_t>(file.size_);
-    Random::Xorshift128plus rnd(123);
-
-    size_t begin = 0;
-
-    while (begin + 128u < size) {
-      auto chunk_size = rnd.fast(128, 3096);
-      auto end = begin + chunk_size;
-      if (end > size) {
-        end = size;
-      }
-
-      ranges_.push_back({begin, end});
-      begin = end;
-    }
-
-    rand_shuffle(as_mutable_span(ranges_), rnd);
-    start_chunk();
-  }
-
-  void on_get_chunk(const td_api::file &file) {
-    LOG(ERROR) << "Receive chunk";
-    auto range = ranges_.back();
-    std::string received_chunk(range.end - range.begin, '\0');
-    FileFd::open(file.local_->path_, FileFd::Flags::Read).move_as_ok().pread(received_chunk, range.begin).ensure();
-    CHECK(received_chunk == as_slice(content_).substr(range.begin, range.end - range.begin));
-    ranges_.pop_back();
-    if (ranges_.empty()) {
-      promise_.set_value(Unit{});
-      return stop();
-    }
-    start_chunk();
-  }
-
-  void start_chunk() {
-    send_query(td::make_tl_object<td::td_api::downloadFile>(
-                   file_id_, 1, static_cast<int64>(ranges_.back().begin),
-                   static_cast<int64>(ranges_.back().end - ranges_.back().begin), true),
-               [this](td::Result<td::td_api::object_ptr<td::td_api::file>> res) { on_get_chunk(*res.ok()); });
-  }
-};
-
-static std::string gen_readable_file(size_t block_size, size_t block_count) {
-  std::string content;
-  for (size_t block_id = 0; block_id < block_count; block_id++) {
-    std::string block;
-    for (size_t line = 0; block.size() < block_size; line++) {
-      block += PSTRING() << "\nblock=" << block_id << ", line=" << line;
-    }
-    block.resize(block_size);
-    content += block;
-  }
-  return content;
-}
-
-class TestTd : public Actor {
- public:
-  struct Options {
-    std::string alice_dir = "alice";
-    std::string bob_dir = "bob";
-    int32 api_id{0};
-    string api_hash;
-  };
-
-  explicit TestTd(Options options) : options_(std::move(options)) {
-  }
-
- private:
-  Options options_;
-  ActorOwn<TestClient> alice_;
-  GetMe::Result alice_id_;
-  std::string alice_cache_dir_;
-  ActorOwn<TestClient> bob_;
-
-  void start_up() override {
-    alice_ = create_actor<TestClient>("Alice", "Alice");
-    bob_ = create_actor<TestClient>("Bob", "Bob");
-
-    MultiPromiseActorSafe mp("init");
-    mp.add_promise(promise_send_closure(actor_id(this), &TestTd::check_init));
-
-    InitTask::Options options;
-    options.api_id = options_.api_id;
-    options.api_hash = options_.api_hash;
-
-    options.name = options_.alice_dir;
-    td::send_closure(alice_, &TestClient::add_listener, td::make_unique<InitTask>(options, mp.get_promise()));
-    options.name = options_.bob_dir;
-    td::send_closure(bob_, &TestClient::add_listener, td::make_unique<InitTask>(options, mp.get_promise()));
-  }
-
-  void check_init(Result<Unit> res) {
-    LOG_IF(FATAL, res.is_error()) << res.error();
-    alice_cache_dir_ = options_.alice_dir + TD_DIR_SLASH + "cache";
-    mkdir(alice_cache_dir_).ignore();
-
-    td::send_closure(alice_, &TestClient::add_listener,
-                     td::make_unique<GetMe>(promise_send_closure(actor_id(this), &TestTd::with_alice_id)));
-
-    //close();
-  }
-
-  void with_alice_id(Result<GetMe::Result> alice_id) {
-    alice_id_ = alice_id.move_as_ok();
-    LOG(ERROR) << "Alice user_id=" << alice_id_.user_id << ", chat_id=" << alice_id_.chat_id;
-    auto content = gen_readable_file(65536, 20);
-    send_closure(alice_, &TestClient::add_listener,
-                 td::make_unique<UploadFile>(alice_cache_dir_, std::move(content), alice_id_.chat_id,
-                                             promise_send_closure(actor_id(this), &TestTd::with_file)));
-  }
-  void with_file(Result<UploadFile::Result> r_result) {
-    auto result = r_result.move_as_ok();
-    send_closure(
-        alice_, &TestClient::add_listener,
-        td::make_unique<TestDownloadFile>(result.remote_id, std::move(result.content),
-                                          promise_send_closure(actor_id(this), &TestTd::after_test_download_file)));
-  }
-  void after_test_download_file(Result<Unit>) {
-    close();
-  }
-
-  void close() {
-    MultiPromiseActorSafe mp("close");
-    mp.add_promise(promise_send_closure(actor_id(this), &TestTd::check_close));
-    td::send_closure(alice_, &TestClient::close, mp.get_promise());
-    td::send_closure(bob_, &TestClient::close, mp.get_promise());
-  }
-
-  void check_close(Result<Unit> res) {
-    Scheduler::instance()->finish();
-    stop();
-  }
-};
-
-static void fail_signal(int sig) {
-  signal_safe_write_signal_number(sig);
-  while (true) {
-    // spin forever to allow debugger to attach
-  }
-}
-
-static void on_fatal_error(const char *error) {
-  std::cerr << "Fatal error: " << error << std::endl;
-}
-int main(int argc, char **argv) {
-  ignore_signal(SignalType::HangUp).ensure();
-  ignore_signal(SignalType::Pipe).ensure();
-  set_signal_handler(SignalType::Error, fail_signal).ensure();
-  set_signal_handler(SignalType::Abort, fail_signal).ensure();
-  Log::set_fatal_error_callback(on_fatal_error);
-  init_openssl_threads();
-
-  TestTd::Options test_options;
-
-  test_options.api_id = [](auto x) -> int32 {
-    if (x) {
-      return to_integer<int32>(Slice(x));
-    }
-    return 0;
-  }(std::getenv("TD_API_ID"));
-  test_options.api_hash = [](auto x) -> std::string {
-    if (x) {
-      return x;
-    }
-    return std::string();
-  }(std::getenv("TD_API_HASH"));
-
-  int new_verbosity_level = VERBOSITY_NAME(INFO);
-
-  OptionParser options;
-  options.set_description("TDLib experimental tester");
-  options.add_option('v', "verbosity", "Set verbosity level", [&](Slice level) {
-    int new_verbosity = 1;
-    while (begins_with(level, "v")) {
-      new_verbosity++;
-      level.remove_prefix(1);
-    }
-    if (!level.empty()) {
-      new_verbosity += to_integer<int>(level) - (new_verbosity == 1);
-    }
-    new_verbosity_level = VERBOSITY_NAME(FATAL) + new_verbosity;
-  });
-  options.add_check([&] {
-    if (test_options.api_id == 0 || test_options.api_hash.empty()) {
-      return Status::Error("You must provide valid api-id and api-hash obtained at https://my.telegram.org");
-    }
-    return Status::OK();
-  });
-  auto r_non_options = options.run(argc, argv, 0);
-  if (r_non_options.is_error()) {
-    LOG(PLAIN) << argv[0] << ": " << r_non_options.error().message();
-    LOG(PLAIN) << options;
-    return 1;
-  }
-  SET_VERBOSITY_LEVEL(new_verbosity_level);
-
-  td::ConcurrentScheduler sched(4, 0);
-  sched.create_actor_unsafe<TestTd>(0, "TestTd", std::move(test_options)).release();
-  sched.start();
-  while (sched.run_main(10)) {
-  }
-  sched.finish();
-  return 0;
-}
-}  // namespace td
-
-int main(int argc, char **argv) {
-  return td::main(argc, argv);
-}
diff --git a/third-party/td/td/test/poll.cpp b/third-party/td/td/test/poll.cpp
deleted file mode 100644
index 4e2baa0853..0000000000
--- a/third-party/td/td/test/poll.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/PollManager.h"
-
-#include "td/utils/logging.h"
-#include "td/utils/tests.h"
-
-static void check_vote_percentage(const std::vector<td::int32> &voter_counts, td::int32 total_count,
-                                  const std::vector<td::int32> &expected) {
-  auto result = td::PollManager::get_vote_percentage(voter_counts, total_count);
-  if (result != expected) {
-    LOG(FATAL) << "Have " << voter_counts << " and " << total_count << ", but received " << result << " instead of "
-               << expected;
-  }
-}
-
-TEST(Poll, get_vote_percentage) {
-  check_vote_percentage({1}, 1, {100});
-  check_vote_percentage({999}, 999, {100});
-  check_vote_percentage({0}, 0, {0});
-  check_vote_percentage({2, 1}, 3, {67, 33});
-  check_vote_percentage({4, 1, 1}, 6, {66, 17, 17});
-  check_vote_percentage({100, 100}, 200, {50, 50});
-  check_vote_percentage({101, 99}, 200, {50, 50});
-  check_vote_percentage({102, 98}, 200, {51, 49});
-  check_vote_percentage({198, 2}, 200, {99, 1});
-  check_vote_percentage({199, 1}, 200, {99, 1});
-  check_vote_percentage({200}, 200, {100});
-  check_vote_percentage({0, 999}, 999, {0, 100});
-  check_vote_percentage({999, 999}, 999, {100, 100});
-  check_vote_percentage({499, 599}, 999, {50, 60});
-  check_vote_percentage({1, 1}, 2, {50, 50});
-  check_vote_percentage({1, 1, 1}, 3, {33, 33, 33});
-  check_vote_percentage({1, 1, 1, 1}, 4, {25, 25, 25, 25});
-  check_vote_percentage({1, 1, 1, 1, 1}, 5, {20, 20, 20, 20, 20});
-  check_vote_percentage({1, 1, 1, 1, 1, 1}, 6, {16, 16, 16, 16, 16, 16});
-  check_vote_percentage({1, 1, 1, 1, 1, 1, 1}, 7, {14, 14, 14, 14, 14, 14, 14});
-  check_vote_percentage({1, 1, 1, 1, 1, 1, 1, 1}, 8, {12, 12, 12, 12, 12, 12, 12, 12});
-  check_vote_percentage({1, 1, 1, 1, 1, 1, 1, 1, 1}, 9, {11, 11, 11, 11, 11, 11, 11, 11, 11});
-  check_vote_percentage({1, 1, 1, 1, 1, 1, 2}, 8, {12, 12, 12, 12, 12, 12, 25});
-  check_vote_percentage({1, 1, 1, 2, 2, 2, 3}, 12, {8, 8, 8, 17, 17, 17, 25});
-  check_vote_percentage({0, 1, 1, 1, 2, 2, 2, 3}, 12, {0, 8, 8, 8, 17, 17, 17, 25});
-  check_vote_percentage({1, 1, 1, 0}, 3, {33, 33, 33, 0});
-  check_vote_percentage({0, 1, 1, 1}, 3, {0, 33, 33, 33});
-  check_vote_percentage({9949, 9950, 9999}, 10000, {99, 100, 100});
-  check_vote_percentage({1234, 2345, 3456, 2841}, 9876,
-                        {12 /* 12.49 */, 24 /* 23.74 */, 35 /* 34.99 */, 29 /* 28.76 */});
-  check_vote_percentage({1234, 2301, 3500, 2841}, 9876,
-                        {12 /* 12.49 */, 23 /* 23.29 */, 35 /* 35.43 */, 29 /* 28.76 */});
-  check_vote_percentage({200, 200, 200, 270, 270, 60}, 1200, {17, 17, 17, 22, 22, 5});
-  check_vote_percentage({200, 200, 200, 300, 240, 60}, 1200, {16, 16, 16, 25, 20, 5});
-  check_vote_percentage({200, 200, 200, 250, 250, 20}, 1120, {18, 18, 18, 22, 22, 2});
-  check_vote_percentage({200, 200, 200, 250, 250, 40}, 1140, {17, 17, 17, 22, 22, 4});
-}
diff --git a/third-party/td/td/test/query_merger.cpp b/third-party/td/td/test/query_merger.cpp
deleted file mode 100644
index a9559c283e..0000000000
--- a/third-party/td/td/test/query_merger.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/QueryMerger.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-#include "td/actor/SleepActor.h"
-
-#include "td/utils/common.h"
-#include "td/utils/FlatHashSet.h"
-#include "td/utils/logging.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Random.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-
-#include <queue>
-
-class TestQueryMerger final : public td::Actor {
-  void start_up() final {
-    query_merger_.set_merge_function([this](td::vector<td::int64> query_ids, td::Promise<td::Unit> &&promise) {
-      ASSERT_TRUE(!query_ids.empty());
-      ASSERT_EQ(query_ids.size(), td::min(next_query_ids_.size(), MAX_MERGED_QUERY_COUNT));
-      for (auto query_id : query_ids) {
-        auto next_query_id = next_query_ids_.front();
-        next_query_ids_.pop();
-        ASSERT_EQ(query_id, next_query_id);
-      }
-      current_query_count_++;
-      ASSERT_TRUE(current_query_count_ <= MAX_CONCURRENT_QUERY_COUNT);
-      if (!next_query_ids_.empty()) {
-        ASSERT_EQ(current_query_count_, MAX_CONCURRENT_QUERY_COUNT);
-      }
-      td::create_actor<td::SleepActor>("CompleteMergeQuery", 0.02,
-                                       td::PromiseCreator::lambda([this, query_ids, promise = std::move(promise)](
-                                                                      td::Result<td::Unit> result) mutable {
-                                         for (auto query_id : query_ids) {
-                                           LOG(INFO) << "Complete " << query_id;
-                                           bool is_erased = pending_query_ids_.erase(query_id) > 0;
-                                           ASSERT_TRUE(is_erased);
-                                         }
-                                         current_query_count_--;
-                                         promise.set_result(std::move(result));
-                                       }))
-          .release();
-      yield();
-    });
-    loop();
-  }
-
-  void loop() final {
-    std::size_t query_count = 0;
-    std::size_t added_queries = td::Random::fast(1, 3);
-    while (query_count++ < added_queries && total_query_count_++ < MAX_QUERY_COUNT) {
-      td::int64 query_id = td::Random::fast(1, 20);
-      if (pending_query_ids_.insert(query_id).second) {
-        next_query_ids_.push(query_id);
-      }
-      query_merger_.add_query(query_id, td::PromiseCreator::lambda([this](td::Result<td::Unit> result) mutable {
-                                completed_query_count_++;
-                                if (completed_query_count_ == MAX_QUERY_COUNT) {
-                                  ASSERT_EQ(current_query_count_, 0u);
-                                  ASSERT_TRUE(next_query_ids_.empty());
-                                  ASSERT_TRUE(pending_query_ids_.empty());
-                                  td::Scheduler::instance()->finish();
-                                } else {
-                                  yield();
-                                }
-                              }),
-                              "TestQueryMerger::loop");
-    }
-  }
-
-  static constexpr std::size_t MAX_CONCURRENT_QUERY_COUNT = 5;
-  static constexpr std::size_t MAX_MERGED_QUERY_COUNT = 3;
-  static constexpr std::size_t MAX_QUERY_COUNT = 1000;
-
-  td::QueryMerger query_merger_{"QueryMerger", MAX_CONCURRENT_QUERY_COUNT, MAX_MERGED_QUERY_COUNT};
-  std::size_t current_query_count_ = 0;
-  std::size_t total_query_count_ = 0;
-  std::size_t completed_query_count_ = 0;
-
-  std::queue<td::int64> next_query_ids_;
-  td::FlatHashSet<td::int64> pending_query_ids_;
-};
-
-TEST(QueryMerger, stress) {
-  td::ConcurrentScheduler sched(0, 0);
-  sched.create_actor_unsafe<TestQueryMerger>(0, "TestQueryMerger").release();
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty
-  }
-  sched.finish();
-}
diff --git a/third-party/td/td/test/secret.cpp b/third-party/td/td/test/secret.cpp
deleted file mode 100644
index 22f6e53de9..0000000000
--- a/third-party/td/td/test/secret.cpp
+++ /dev/null
@@ -1,1025 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/EncryptedFile.h"
-#include "td/telegram/FolderId.h"
-#include "td/telegram/Global.h"
-#include "td/telegram/logevent/LogEvent.h"
-#include "td/telegram/MessageId.h"
-#include "td/telegram/net/NetQuery.h"
-#include "td/telegram/net/NetQueryCreator.h"
-#include "td/telegram/secret_api.h"
-#include "td/telegram/SecretChatActor.h"
-#include "td/telegram/SecretChatDb.h"
-#include "td/telegram/SecretChatId.h"
-#include "td/telegram/telegram_api.h"
-#include "td/telegram/UserId.h"
-
-#include "td/db/binlog/BinlogInterface.h"
-#include "td/db/binlog/detail/BinlogEventsProcessor.h"
-#include "td/db/BinlogKeyValue.h"
-#include "td/db/DbKey.h"
-
-#include "td/mtproto/DhCallback.h"
-#include "td/mtproto/utils.h"
-
-#include "td/tl/tl_object_parse.h"
-#include "td/tl/tl_object_store.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/as.h"
-#include "td/utils/base64.h"
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/crypto.h"
-#include "td/utils/format.h"
-#include "td/utils/Gzip.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-#include "td/utils/tl_helpers.h"
-#include "td/utils/tl_parsers.h"
-#include "td/utils/tl_storers.h"
-
-#include <cstdio>
-#include <ctime>
-#include <limits>
-#include <map>
-#include <memory>
-
-namespace my_api {
-
-using namespace td;
-
-class messages_getDhConfig {
- public:
-  int32 version_{};
-  int32 random_length_{};
-
-  messages_getDhConfig() = default;
-
-  messages_getDhConfig(int32 version, int32 random_length);
-
-  static const int32 ID = 651135312;
-
-  explicit messages_getDhConfig(TlBufferParser &p)
-#define FAIL(error) p.set_error(error)
-      : version_(TlFetchInt::parse(p))
-      , random_length_(TlFetchInt::parse(p))
-#undef FAIL
-  {
-  }
-};
-
-class InputUser {
- public:
-  static tl_object_ptr<InputUser> fetch(TlBufferParser &p);
-};
-
-class inputUser final : public InputUser {
- public:
-  int64 user_id_{};
-  int64 access_hash_{};
-
-  static const int32 ID = -668391402;
-  inputUser() = default;
-
-  explicit inputUser(TlBufferParser &p)
-#define FAIL(error) p.set_error(error)
-      : user_id_(TlFetchInt::parse(p))
-      , access_hash_(TlFetchLong::parse(p))
-#undef FAIL
-  {
-  }
-};
-
-tl_object_ptr<InputUser> InputUser::fetch(TlBufferParser &p) {
-#define FAIL(error)   \
-  p.set_error(error); \
-  return nullptr;
-  int constructor = p.fetch_int();
-  switch (constructor) {
-    case inputUser::ID:
-      return make_tl_object<inputUser>(p);
-    default:
-      FAIL(PSTRING() << "Unknown constructor found " << format::as_hex(constructor));
-  }
-#undef FAIL
-}
-
-class messages_requestEncryption final {
- public:
-  tl_object_ptr<InputUser> user_id_;
-  int32 random_id_{};
-  BufferSlice g_a_;
-
-  static const int32 ID = -162681021;
-  messages_requestEncryption();
-
-  explicit messages_requestEncryption(TlBufferParser &p)
-      : user_id_(TlFetchObject<InputUser>::parse(p))
-      , random_id_(TlFetchInt::parse(p))
-      , g_a_(TlFetchBytes<BufferSlice>::parse(p)) {
-  }
-};
-
-class inputEncryptedChat final {
- public:
-  int32 chat_id_{};
-  int64 access_hash_{};
-
-  inputEncryptedChat() = default;
-
-  static const int32 ID = -247351839;
-  explicit inputEncryptedChat(TlBufferParser &p) : chat_id_(TlFetchInt::parse(p)), access_hash_(TlFetchLong::parse(p)) {
-  }
-  static tl_object_ptr<inputEncryptedChat> fetch(TlBufferParser &p) {
-    return make_tl_object<inputEncryptedChat>(p);
-  }
-};
-
-class messages_acceptEncryption final {
- public:
-  tl_object_ptr<inputEncryptedChat> peer_;
-  BufferSlice g_b_;
-  int64 key_fingerprint_{};
-
-  messages_acceptEncryption() = default;
-
-  static const int32 ID = 1035731989;
-
-  explicit messages_acceptEncryption(TlBufferParser &p)
-      : peer_(TlFetchBoxed<TlFetchObject<inputEncryptedChat>, -247351839>::parse(p))
-      , g_b_(TlFetchBytes<BufferSlice>::parse(p))
-      , key_fingerprint_(TlFetchLong::parse(p)) {
-  }
-};
-
-class messages_sendEncryptedService final {
- public:
-  tl_object_ptr<inputEncryptedChat> peer_;
-  int64 random_id_{};
-  BufferSlice data_;
-
-  messages_sendEncryptedService() = default;
-  static const int32 ID = 852769188;
-  explicit messages_sendEncryptedService(TlBufferParser &p)
-      : peer_(TlFetchBoxed<TlFetchObject<inputEncryptedChat>, -247351839>::parse(p))
-      , random_id_(TlFetchLong::parse(p))
-      , data_(TlFetchBytes<BufferSlice>::parse(p)) {
-  }
-};
-
-class messages_sendEncrypted final {
- public:
-  int32 flags_;
-  tl_object_ptr<inputEncryptedChat> peer_;
-  int64 random_id_{};
-  BufferSlice data_;
-
-  messages_sendEncrypted() = default;
-  static const int32 ID = 1157265941;
-
-  explicit messages_sendEncrypted(TlBufferParser &p)
-      : flags_(TlFetchInt::parse(p))
-      , peer_(TlFetchBoxed<TlFetchObject<inputEncryptedChat>, -247351839>::parse(p))
-      , random_id_(TlFetchLong::parse(p))
-      , data_(TlFetchBytes<BufferSlice>::parse(p)) {
-  }
-};
-
-template <class F>
-static void downcast_call(TlBufferParser &p, F &&f) {
-  auto id = p.fetch_int();
-  switch (id) {
-    case messages_getDhConfig::ID:
-      return f(*make_tl_object<messages_getDhConfig>(p));
-    case messages_requestEncryption::ID:
-      return f(*make_tl_object<messages_requestEncryption>(p));
-    case messages_acceptEncryption::ID:
-      return f(*make_tl_object<messages_acceptEncryption>(p));
-    case messages_sendEncrypted::ID:
-      return f(*make_tl_object<messages_sendEncrypted>(p));
-    case messages_sendEncryptedService::ID:
-      return f(*make_tl_object<messages_sendEncryptedService>(p));
-    default:
-      LOG(ERROR) << "Unknown constructor " << id;
-      UNREACHABLE();
-  }
-}
-
-class messages_dhConfig final {
- public:
-  int32 g_{};
-  BufferSlice p_;
-  int32 version_{};
-  BufferSlice random_;
-
-  messages_dhConfig() = default;
-
-  messages_dhConfig(int32 g, BufferSlice &&p, int32 version, BufferSlice &&random)
-      : g_(g), p_(std::move(p)), version_(version), random_(std::move(random)) {
-  }
-
-  static const int32 ID = 740433629;
-  int32 get_id() const {
-    return ID;
-  }
-
-  void store(TlStorerCalcLength &s) const {
-    (void)sizeof(s);
-    TlStoreBinary::store(g_, s);
-    TlStoreString::store(p_, s);
-    TlStoreBinary::store(version_, s);
-    TlStoreString::store(random_, s);
-  }
-  void store(TlStorerUnsafe &s) const {
-    (void)sizeof(s);
-    TlStoreBinary::store(g_, s);
-    TlStoreString::store(p_, s);
-    TlStoreBinary::store(version_, s);
-    TlStoreString::store(random_, s);
-  }
-};
-const int32 messages_dhConfig::ID;
-
-class encryptedChat final {
- public:
-  int32 id_{};
-  int64 access_hash_{};
-  int32 date_{};
-  int64 admin_id_{};
-  int64 participant_id_{};
-  BufferSlice g_a_or_b_;
-  int64 key_fingerprint_{};
-
-  encryptedChat() = default;
-
-  encryptedChat(int32 id, int64 access_hash, int32 date, int64 admin_id, int64 participant_id, BufferSlice &&g_a_or_b,
-                int64 key_fingerprint)
-      : id_(id)
-      , access_hash_(access_hash)
-      , date_(date)
-      , admin_id_(admin_id)
-      , participant_id_(participant_id)
-      , g_a_or_b_(std::move(g_a_or_b))
-      , key_fingerprint_(key_fingerprint) {
-  }
-
-  static const int32 ID = -94974410;
-  int32 get_id() const {
-    return ID;
-  }
-
-  void store(TlStorerCalcLength &s) const {
-    (void)sizeof(s);
-    TlStoreBinary::store(id_, s);
-    TlStoreBinary::store(access_hash_, s);
-    TlStoreBinary::store(date_, s);
-    TlStoreBinary::store(admin_id_, s);
-    TlStoreBinary::store(participant_id_, s);
-    TlStoreString::store(g_a_or_b_, s);
-    TlStoreBinary::store(key_fingerprint_, s);
-  }
-
-  void store(TlStorerUnsafe &s) const {
-    (void)sizeof(s);
-    TlStoreBinary::store(id_, s);
-    TlStoreBinary::store(access_hash_, s);
-    TlStoreBinary::store(date_, s);
-    TlStoreBinary::store(admin_id_, s);
-    TlStoreBinary::store(participant_id_, s);
-    TlStoreString::store(g_a_or_b_, s);
-    TlStoreBinary::store(key_fingerprint_, s);
-  }
-};
-const int32 encryptedChat::ID;
-
-class messages_sentEncryptedMessage final {
- public:
-  int32 date_{};
-
-  messages_sentEncryptedMessage() = default;
-
-  explicit messages_sentEncryptedMessage(int32 date) : date_(date) {
-  }
-
-  static const int32 ID = 1443858741;
-  int32 get_id() const {
-    return ID;
-  }
-
-  void store(TlStorerCalcLength &s) const {
-    (void)sizeof(s);
-    TlStoreBinary::store(date_, s);
-  }
-
-  void store(TlStorerUnsafe &s) const {
-    (void)sizeof(s);
-    TlStoreBinary::store(date_, s);
-  }
-};
-
-}  // namespace my_api
-
-namespace td {
-static int32 g = 3;
-static string prime_base64 =
-    "xxyuucaxyQSObFIvcPE_c5gNQCOOPiHBSTTQN1Y9kw9IGYoKp8FAWCKUk9IlMPTb-jNvbgrJJROVQ67UTM58NyD9UfaUWHBaxozU_mtrE6vcl0ZRKW"
-    "kyhFTxj6-MWV9kJHf-lrsqlB1bzR1KyMxJiAcI-ps3jjxPOpBgvuZ8-aSkppWBEFGQfhYnU7VrD2tBDbp02KhLKhSzFE4O8ShHVP0X7ZUNWWW0ud1G"
-    "WC2xF40WnGvEZbDW_5yjko_vW5rk5Bj8Feg-vqD4f6n_Xu1wBQ3tKEn0e_lZ2VaFDOkphR8NgRX2NbEF7i5OFdBLJFS_b0-t8DSxBAMRnNjjuS_MW"
-    "w";
-
-class FakeDhCallback final : public mtproto::DhCallback {
- public:
-  int is_good_prime(Slice prime_str) const final {
-    auto it = cache.find(prime_str.str());
-    if (it == cache.end()) {
-      return -1;
-    }
-    return it->second;
-  }
-  void add_good_prime(Slice prime_str) const final {
-    cache[prime_str.str()] = 1;
-  }
-  void add_bad_prime(Slice prime_str) const final {
-    cache[prime_str.str()] = 0;
-  }
-  mutable std::map<string, int> cache;
-};
-
-class FakeBinlog final
-    : public BinlogInterface
-    , public Actor {
- public:
-  FakeBinlog() {
-    register_actor("FakeBinlog", this).release();
-  }
-  void force_sync(Promise<> promise, const char *source) final {
-    if (pending_events_.empty()) {
-      pending_events_.emplace_back();
-    }
-    pending_events_.back().promises_.push_back(std::move(promise));
-    pending_events_.back().sync_flag = true;
-    request_sync();
-  }
-  void request_sync() {
-    if (!has_request_sync) {
-      has_request_sync = true;
-      if (Random::fast(0, 4) == 0) {
-        set_timeout_in(Random::fast(0, 99) / 100.0 * 0.005 + 0.001);
-      } else {
-        yield();
-      }
-    }
-  }
-  void force_flush() final {
-  }
-
-  uint64 next_event_id() final {
-    auto res = last_event_id_;
-    last_event_id_++;
-    return res;
-  }
-  uint64 next_event_id(int32 shift) final {
-    auto res = last_event_id_;
-    last_event_id_ += shift;
-    return res;
-  }
-  template <class F>
-  void for_each(const F &f) {
-    events_processor_.for_each([&](auto &x) {
-      LOG(INFO) << "REPLAY: " << x.id_;
-      f(x);
-    });
-  }
-
-  void restart() {
-    has_request_sync = false;
-    cancel_timeout();
-    for (auto &pending : pending_events_) {
-      auto &event = pending.event;
-      if (!event.is_empty()) {
-        // LOG(ERROR) << "FORGET EVENT: " << event.id_ << " " << event;
-      }
-    }
-    pending_events_.clear();
-  }
-
-  void change_key(DbKey key, Promise<> promise) final {
-  }
-
- protected:
-  void close_impl(Promise<> promise) final {
-  }
-  void close_and_destroy_impl(Promise<> promise) final {
-  }
-  void add_raw_event_impl(uint64 event_id, BufferSlice &&raw_event, Promise<> promise, BinlogDebugInfo info) final {
-    auto event = BinlogEvent(std::move(raw_event), info);
-    LOG(INFO) << "ADD EVENT: " << event.id_ << " " << event;
-    pending_events_.emplace_back();
-    pending_events_.back().event = std::move(event);
-    pending_events_.back().promises_.push_back(std::move(promise));
-  }
-  void do_force_sync() {
-    if (pending_events_.empty()) {
-      return;
-    }
-    cancel_timeout();
-    has_request_sync = false;
-    auto pos = static_cast<size_t>(Random::fast_uint64() % pending_events_.size());
-    // pos = pending_events_.size() - 1;
-    td::vector<Promise<Unit>> promises;
-    for (size_t i = 0; i <= pos; i++) {
-      auto &pending = pending_events_[i];
-      auto event = std::move(pending.event);
-      if (!event.is_empty()) {
-        LOG(INFO) << "SAVE EVENT: " << event.id_ << " " << event;
-        events_processor_.add_event(std::move(event)).ensure();
-      }
-      append(promises, std::move(pending.promises_));
-    }
-    pending_events_.erase(pending_events_.begin(), pending_events_.begin() + pos + 1);
-    set_promises(promises);
-
-    for (auto &event : pending_events_) {
-      if (event.sync_flag) {
-        request_sync();
-        break;
-      }
-    }
-  }
-  void timeout_expired() final {
-    do_force_sync();
-  }
-  void wakeup() final {
-    if (has_request_sync) {
-      do_force_sync();
-    }
-  }
-  bool has_request_sync = false;
-  uint64 last_event_id_ = 1;
-  detail::BinlogEventsProcessor events_processor_;
-
-  struct PendingEvent {
-    BinlogEvent event;
-    bool sync_flag = false;
-    td::vector<Promise<Unit>> promises_;
-  };
-
-  std::vector<PendingEvent> pending_events_;
-};
-
-using FakeKeyValue = BinlogKeyValue<BinlogInterface>;
-
-class Master;
-class FakeSecretChatContext final : public SecretChatActor::Context {
- public:
-  FakeSecretChatContext(std::shared_ptr<BinlogInterface> binlog, std::shared_ptr<KeyValueSyncInterface> key_value,
-                        std::shared_ptr<bool> close_flag, ActorShared<Master> master)
-      : binlog_(std::move(binlog))
-      , key_value_(std::move(key_value))
-      , close_flag_(std::move(close_flag))
-      , master_(std::move(master)) {
-    secret_chat_db_ = std::make_shared<SecretChatDb>(key_value_, 1);
-    net_query_creator_.stop_check();  // :(
-  }
-  mtproto::DhCallback *dh_callback() final {
-    return &fake_dh_callback_;
-  }
-  NetQueryCreator &net_query_creator() final {
-    return net_query_creator_;
-  }
-  int32 unix_time() final {
-    return static_cast<int32>(std::time(nullptr));
-  }
-  bool close_flag() final {
-    return *close_flag_;
-  }
-  BinlogInterface *binlog() final {
-    return binlog_.get();
-  }
-  SecretChatDb *secret_chat_db() final {
-    return secret_chat_db_.get();
-  }
-  std::shared_ptr<DhConfig> dh_config() final {
-    static auto config = [] {
-      DhConfig dh_config;
-      dh_config.version = 12;
-      dh_config.g = g;
-      dh_config.prime = base64url_decode(prime_base64).move_as_ok();
-      return std::make_shared<DhConfig>(dh_config);
-    }();
-
-    return config;
-  }
-  void set_dh_config(std::shared_ptr<DhConfig> dh_config) final {
-    // empty
-  }
-
-  bool get_config_option_boolean(const string &name) const final {
-    return false;
-  }
-
-  // We don't want to expose the whole NetQueryDispatcher, MessagesManager and UserManager.
-  // So it is more clear which parts of MessagesManager is really used. And it is much easier to create tests.
-  void send_net_query(NetQueryPtr query, ActorShared<NetQueryCallback> callback, bool ordered) final;
-
-  void on_update_secret_chat(int64 access_hash, UserId user_id, SecretChatState state, bool is_outbound, int32 ttl,
-                             int32 date, string key_hash, int32 layer, FolderId initial_folder_id) final {
-  }
-
-  void on_inbound_message(UserId user_id, MessageId message_id, int32 date, unique_ptr<EncryptedFile> file,
-                          tl_object_ptr<secret_api::decryptedMessage> message, Promise<>) final;
-
-  void on_send_message_error(int64 random_id, Status error, Promise<>) final;
-  void on_send_message_ack(int64 random_id) final;
-  void on_send_message_ok(int64 random_id, MessageId message_id, int32 date, unique_ptr<EncryptedFile> file,
-                          Promise<>) final;
-  void on_delete_messages(std::vector<int64> random_id, Promise<>) final;
-  void on_flush_history(bool, MessageId, Promise<>) final;
-  void on_read_message(int64, Promise<>) final;
-
-  void on_screenshot_taken(UserId user_id, MessageId message_id, int32 date, int64 random_id, Promise<> promise) final {
-  }
-  void on_set_ttl(UserId user_id, MessageId message_id, int32 date, int32 ttl, int64 random_id,
-                  Promise<> promise) final {
-  }
-
- private:
-  FakeDhCallback fake_dh_callback_;
-  static NetQueryCreator net_query_creator_;
-  std::shared_ptr<BinlogInterface> binlog_;
-  std::shared_ptr<KeyValueSyncInterface> key_value_;
-  std::shared_ptr<bool> close_flag_;
-  ActorShared<Master> master_;
-
-  std::shared_ptr<SecretChatDb> secret_chat_db_;
-};
-NetQueryCreator FakeSecretChatContext::net_query_creator_{nullptr};
-
-class Master final : public Actor {
- public:
-  explicit Master(Status *status) : status_(status) {
-  }
-  class SecretChatProxy final : public Actor {
-   public:
-    SecretChatProxy(string name, ActorShared<Master> parent) : name_(std::move(name)) {
-      binlog_ = std::make_shared<FakeBinlog>();
-      key_value_ = std::make_shared<FakeKeyValue>();
-      key_value_->external_init_begin(LogEvent::HandlerType::BinlogPmcMagic);
-      key_value_->external_init_finish(binlog_);
-      close_flag_ = std::make_shared<bool>(false);
-      parent_ = parent.get();
-      parent_token_ = parent.token();
-      actor_ = create_actor<SecretChatActor>(
-          PSLICE() << "SecretChat " << name_, 123,
-          td::make_unique<FakeSecretChatContext>(binlog_, key_value_, close_flag_, std::move(parent)), true);
-      on_binlog_replay_finish();
-    }
-
-    ActorOwn<SecretChatActor> actor_;
-
-    void add_inbound_message(int32 chat_id, BufferSlice data, uint64 crc) {
-      CHECK(crc64(data.as_slice()) == crc);
-      auto event = make_unique<log_event::InboundSecretMessage>();
-      event->chat_id = chat_id;
-      event->date = 0;
-      event->encrypted_message = std::move(data);
-      event->promise = PromiseCreator::lambda(
-          [actor_id = actor_id(this), chat_id, data = event->encrypted_message.copy(), crc](Result<> result) mutable {
-            if (result.is_ok()) {
-              LOG(INFO) << "FINISH add_inbound_message " << tag("crc", crc);
-              return;
-            }
-            LOG(INFO) << "RESEND add_inbound_message " << tag("crc", crc) << result.error();
-            send_closure(actor_id, &SecretChatProxy::add_inbound_message, chat_id, std::move(data), crc);
-          });
-
-      add_event(Event::delayed_closure(&SecretChatActor::add_inbound_message, std::move(event)));
-    }
-
-    void send_message(tl_object_ptr<secret_api::DecryptedMessage> message) {
-      BufferSlice serialized_message(serialize(*message));
-      auto resend_promise = PromiseCreator::lambda(
-          [actor_id = actor_id(this), serialized_message = std::move(serialized_message)](Result<> result) mutable {
-            TlBufferParser parser(&serialized_message);
-            auto message = secret_api::decryptedMessage::fetch(parser);
-            if (result.is_ok()) {
-              LOG(INFO) << "FINISH send_message " << tag("message", to_string(message));
-              return;
-            }
-            LOG(INFO) << "RESEND send_message " << tag("message", to_string(message)) << result.error();
-            CHECK(serialize(*message) == serialized_message.as_slice());
-            send_closure(actor_id, &SecretChatProxy::send_message, std::move(message));
-          });
-      auto sync_promise = PromiseCreator::lambda([actor_id = actor_id(this), generation = this->binlog_generation_,
-                                                  resend_promise = std::move(resend_promise)](Result<> result) mutable {
-        if (result.is_error()) {
-          resend_promise.set_error(result.move_as_error());
-          return;
-        }
-        send_closure(actor_id, &SecretChatProxy::sync_binlog, generation, std::move(resend_promise));
-      });
-
-      add_event(
-          Event::delayed_closure(&SecretChatActor::send_message, std::move(message), nullptr, std::move(sync_promise)));
-    }
-    int32 binlog_generation_ = 0;
-    void sync_binlog(int32 binlog_generation, Promise<> promise) {
-      if (binlog_generation != binlog_generation_) {
-        return promise.set_error(Status::Error("Binlog generation mismatch"));
-      }
-      binlog_->force_sync(std::move(promise), "sync_binlog");
-    }
-    void on_closed() {
-      LOG(INFO) << "CLOSED";
-      ready_ = false;
-      *close_flag_ = false;
-
-      key_value_ = std::make_shared<FakeKeyValue>();
-      key_value_->external_init_begin(LogEvent::HandlerType::BinlogPmcMagic);
-
-      std::vector<BinlogEvent> events;
-      binlog_generation_++;
-      binlog_->restart();
-      binlog_->for_each([&](const BinlogEvent &event) {
-        if (event.type_ == LogEvent::HandlerType::BinlogPmcMagic) {
-          key_value_->external_init_handle(event);
-        } else {
-          events.push_back(event.clone());
-        }
-      });
-
-      key_value_->external_init_finish(binlog_);
-
-      actor_ = create_actor<SecretChatActor>(
-          PSLICE() << "SecretChat " << name_, 123,
-          td::make_unique<FakeSecretChatContext>(binlog_, key_value_, close_flag_,
-                                                 ActorShared<Master>(parent_, parent_token_)),
-          true);
-
-      for (auto &event : events) {
-        CHECK(event.type_ == LogEvent::HandlerType::SecretChats);
-        auto r_message = log_event::SecretChatEvent::from_buffer_slice(event.data_as_buffer_slice());
-        LOG_IF(FATAL, r_message.is_error()) << "Failed to deserialize event: " << r_message.error();
-        auto message = r_message.move_as_ok();
-        message->set_log_event_id(event.id_);
-        LOG(INFO) << "Process binlog event " << *message;
-        switch (message->get_type()) {
-          case log_event::SecretChatEvent::Type::InboundSecretMessage:
-            send_closure_later(actor_, &SecretChatActor::replay_inbound_message,
-                               unique_ptr<log_event::InboundSecretMessage>(
-                                   static_cast<log_event::InboundSecretMessage *>(message.release())));
-            break;
-          case log_event::SecretChatEvent::Type::OutboundSecretMessage:
-            send_closure_later(actor_, &SecretChatActor::replay_outbound_message,
-                               unique_ptr<log_event::OutboundSecretMessage>(
-                                   static_cast<log_event::OutboundSecretMessage *>(message.release())));
-            break;
-          default:
-            UNREACHABLE();
-        }
-      };
-      start_test();
-      on_binlog_replay_finish();
-    }
-    void on_binlog_replay_finish() {
-      ready_ = true;
-      LOG(INFO) << "Finish replay binlog";
-      send_closure(actor_, &SecretChatActor::binlog_replay_finish);
-      for (auto &event : pending_events_) {
-        send_event(actor_, std::move(event));
-      }
-      pending_events_.clear();
-    }
-    void start_test() {
-      set_timeout_in(Random::fast(50, 99) * 0.3 / 50);
-      events_cnt_ = 0;
-    }
-
-   private:
-    string name_;
-
-    ActorId<Master> parent_;
-    uint64 parent_token_;
-    std::shared_ptr<FakeBinlog> binlog_;
-    std::shared_ptr<FakeKeyValue> key_value_;
-    std::shared_ptr<bool> close_flag_;
-    int events_cnt_ = 0;
-
-    std::vector<Event> pending_events_;
-    bool ready_ = false;
-
-    bool is_active() {
-      return !actor_.empty() && ready_;
-    }
-    void add_event(Event event) {
-      events_cnt_++;
-      if (is_active()) {
-        LOG(INFO) << "EMIT";
-        send_event(actor_, std::move(event));
-      } else {
-        LOG(INFO) << "DELAY";
-        pending_events_.push_back(std::move(event));
-      }
-    }
-
-    int32 bad_cnt_ = 0;
-    void timeout_expired() final {
-      LOG(INFO) << "TIMEOUT EXPIRED";
-      if (events_cnt_ < 4) {
-        bad_cnt_++;
-        CHECK(bad_cnt_ < 10);
-      } else {
-        bad_cnt_ = 0;
-      }
-      *close_flag_ = true;
-      actor_.reset();
-    }
-  };
-
-  auto &get_by_id(uint64 id) {
-    if (id == 1) {
-      return alice_;
-    } else {
-      return bob_;
-    }
-  }
-  auto &from() {
-    return get_by_id(get_link_token());
-  }
-  auto &to() {
-    return get_by_id(3 - get_link_token());
-  }
-  void start_up() final {
-    auto old_context = set_context(std::make_shared<Global>());
-    alice_ = create_actor<SecretChatProxy>("SecretChatProxy alice", "alice", actor_shared(this, 1));
-    bob_ = create_actor<SecretChatProxy>("SecretChatProxy bob", "bob", actor_shared(this, 2));
-    send_closure(alice_.get_actor_unsafe()->actor_, &SecretChatActor::create_chat, UserId(static_cast<int64>(2)), 0,
-                 123, PromiseCreator::lambda([actor_id = actor_id(this)](Result<SecretChatId> res) {
-                   send_closure(actor_id, &Master::on_get_secret_chat_id, std::move(res), false);
-                 }));
-  }
-
-  void on_get_secret_chat_id(Result<SecretChatId> res, bool dummy) {
-    CHECK(res.is_ok());
-    auto id = res.move_as_ok();
-    LOG(INFO) << "SecretChatId = " << id;
-  }
-
-  static bool can_fail(NetQueryPtr &query) {
-    static int cnt = 20;
-    if (cnt > 0) {
-      cnt--;
-      return false;
-    }
-    if (query->tl_constructor() == telegram_api::messages_sendEncrypted::ID ||
-        query->tl_constructor() == telegram_api::messages_sendEncryptedFile::ID) {
-      return true;
-    }
-    return false;
-  }
-
-  void send_net_query(NetQueryPtr query, ActorShared<NetQueryCallback> callback, bool ordered) {
-    if (can_fail(query) && Random::fast_bool()) {
-      LOG(INFO) << "Fail query " << query;
-      auto resend_promise =
-          PromiseCreator::lambda([self = actor_shared(this, get_link_token()), callback_actor = callback.get(),
-                                  callback_token = callback.token()](Result<NetQueryPtr> r_net_query) mutable {
-            if (r_net_query.is_error()) {
-              self.release();
-              return;
-            }
-            send_closure(std::move(self), &Master::send_net_query, r_net_query.move_as_ok(),
-                         ActorShared<NetQueryCallback>(callback_actor, callback_token), true);
-          });
-      query->set_error(Status::Error(429, "Test error"));
-      send_closure(std::move(callback), &NetQueryCallback::on_result_resendable, std::move(query),
-                   std::move(resend_promise));
-      return;
-    } else {
-      LOG(INFO) << "Do not fail " << query;
-    }
-    auto query_slice = query->query().clone();
-    if (query->gzip_flag() == NetQuery::GzipFlag::On) {
-      query_slice = gzdecode(query_slice.as_slice());
-    }
-    TlBufferParser parser(&query_slice);
-    //auto object = telegram_api::Function::fetch(parser);
-    //LOG(INFO) << query_slice.size();
-    //parser.get_status().ensure();
-    my_api::downcast_call(parser, [&](auto &object) {
-      this->process_net_query(std::move(object), std::move(query), std::move(callback));
-    });
-  }
-  template <class T>
-  void process_net_query(T &&object, NetQueryPtr query, ActorShared<NetQueryCallback> callback) {
-    LOG(FATAL) << "Unsupported query: " << to_string(object);
-  }
-  void process_net_query(my_api::messages_getDhConfig &&get_dh_config, NetQueryPtr net_query,
-                         ActorShared<NetQueryCallback> callback) {
-    //LOG(INFO) << "Receive query " << to_string(get_dh_config);
-    my_api::messages_dhConfig config;
-    config.p_ = BufferSlice(base64url_decode(prime_base64).move_as_ok());
-    config.g_ = g;
-    config.version_ = 12;
-    auto storer = TLObjectStorer<my_api::messages_dhConfig>(config);
-    BufferSlice answer(storer.size());
-    auto real_size = storer.store(answer.as_mutable_slice().ubegin());
-    CHECK(real_size == answer.size());
-    net_query->set_ok(std::move(answer));
-    send_closure(std::move(callback), &NetQueryCallback::on_result, std::move(net_query));
-  }
-  void process_net_query(my_api::messages_requestEncryption &&request_encryption, NetQueryPtr net_query,
-                         ActorShared<NetQueryCallback> callback) {
-    CHECK(get_link_token() == 1);
-    send_closure(alice_.get_actor_unsafe()->actor_, &SecretChatActor::update_chat,
-                 make_tl_object<telegram_api::encryptedChatWaiting>(123, 321, 0, 1, 2));
-    send_closure(bob_.get_actor_unsafe()->actor_, &SecretChatActor::update_chat,
-                 make_tl_object<telegram_api::encryptedChatRequested>(0, false, 123, 321, 0, 1, 2,
-                                                                      request_encryption.g_a_.clone()));
-    net_query->clear();
-  }
-  void process_net_query(my_api::messages_acceptEncryption &&request_encryption, NetQueryPtr net_query,
-                         ActorShared<NetQueryCallback> callback) {
-    CHECK(get_link_token() == 2);
-    send_closure(alice_.get_actor_unsafe()->actor_, &SecretChatActor::update_chat,
-                 make_tl_object<telegram_api::encryptedChat>(123, 321, 0, 1, 2, request_encryption.g_b_.clone(),
-                                                             request_encryption.key_fingerprint_));
-
-    my_api::encryptedChat encrypted_chat(123, 321, 0, 1, 2, BufferSlice(), request_encryption.key_fingerprint_);
-    auto storer = TLObjectStorer<my_api::encryptedChat>(encrypted_chat);
-    BufferSlice answer(storer.size());
-    auto real_size = storer.store(answer.as_mutable_slice().ubegin());
-    CHECK(real_size == answer.size());
-    net_query->set_ok(std::move(answer));
-    send_closure(std::move(callback), &NetQueryCallback::on_result, std::move(net_query));
-    send_closure(alice_, &SecretChatProxy::start_test);
-    send_closure(bob_, &SecretChatProxy::start_test);
-    send_ping(1, 5000);
-    set_timeout_in(1);
-  }
-  void timeout_expired() final {
-    send_message(1, "oppa");
-    send_message(2, "appo");
-    set_timeout_in(1);
-  }
-  void send_ping(int32 id, int cnt) {
-    if (cnt % 200 == 0) {
-      LOG(ERROR) << "Send ping " << tag("id", id) << tag("cnt", cnt);
-    } else {
-      LOG(INFO) << "Send ping " << tag("id", id) << tag("cnt", cnt);
-    }
-    string text = PSTRING() << "PING: " << cnt;
-    send_message(id, std::move(text));
-  }
-  void send_message(int32 id, string text) {
-    auto random_id = Random::secure_int64();
-    LOG(INFO) << "Send message: " << tag("id", id) << tag("text", text) << tag("random_id", random_id);
-    sent_messages_[random_id] = Message{id, text};
-    send_closure(get_by_id(id), &SecretChatProxy::send_message,
-                 secret_api::make_object<secret_api::decryptedMessage>(0, false /*ignored*/, random_id, 0, text, Auto(),
-                                                                       Auto(), Auto(), Auto(), 0));
-  }
-  void process_net_query(my_api::messages_sendEncryptedService &&message, NetQueryPtr net_query,
-                         ActorShared<NetQueryCallback> callback) {
-    process_net_query_send_encrypted(std::move(message.data_), std::move(net_query), std::move(callback));
-  }
-  void process_net_query(my_api::messages_sendEncrypted &&message, NetQueryPtr net_query,
-                         ActorShared<NetQueryCallback> callback) {
-    process_net_query_send_encrypted(std::move(message.data_), std::move(net_query), std::move(callback));
-  }
-  void process_net_query_send_encrypted(BufferSlice data, NetQueryPtr net_query,
-                                        ActorShared<NetQueryCallback> callback) {
-    BufferSlice answer(8);
-    answer.as_mutable_slice().fill(0);
-    as<int32>(answer.as_mutable_slice().begin()) = static_cast<int32>(my_api::messages_sentEncryptedMessage::ID);
-    net_query->set_ok(std::move(answer));
-    send_closure(std::move(callback), &NetQueryCallback::on_result, std::move(net_query));
-
-    // We can't loose updates yet :(
-    auto crc = crc64(data.as_slice());
-    LOG(INFO) << "Send SecretChatProxy::add_inbound_message" << tag("crc", crc);
-    send_closure(to(), &SecretChatProxy::add_inbound_message, narrow_cast<int32>(3 - get_link_token()), std::move(data),
-                 crc);
-  }
-
-  int32 last_ping_ = std::numeric_limits<int32>::max();
-  void on_inbound_message(string message, Promise<> promise) {
-    promise.set_value(Unit());
-    LOG(INFO) << "Receive inbound message: " << message << " " << get_link_token();
-    int32 cnt;
-    int x = std::sscanf(message.c_str(), "PING: %d", &cnt);
-    if (x != 1) {
-      return;
-    }
-    if (cnt == 0) {
-      Scheduler::instance()->finish();
-      *status_ = Status::OK();
-      return;
-    }
-    if (cnt >= last_ping_) {
-      return;
-    }
-    last_ping_ = cnt;
-    send_ping(narrow_cast<int32>(get_link_token()), cnt - 1);
-  }
-  void on_send_message_error(int64 random_id, Status error, Promise<> promise) {
-    promise.set_value(Unit());
-    LOG(INFO) << "Receive send message error: " << tag("random_id", random_id) << error;
-    auto it = sent_messages_.find(random_id);
-    if (it == sent_messages_.end()) {
-      LOG(INFO) << "TODO: try to fix errors about message after it is sent";
-      return;
-    }
-    CHECK(it != sent_messages_.end());
-    auto message = it->second;
-    // sent_messages_.erase(it);
-    send_message(message.id, message.text);
-  }
-  void on_send_message_ok(int64 random_id, Promise<> promise) {
-    promise.set_value(Unit());
-    LOG(INFO) << "Receive send message ok: " << tag("random_id", random_id);
-    auto it = sent_messages_.find(random_id);
-    if (it == sent_messages_.end()) {
-      LOG(INFO) << "TODO: try to fix errors about message after it is sent";
-      return;
-    }
-    CHECK(it != sent_messages_.end());
-    // sent_messages_.erase(it);
-  }
-
- private:
-  Status *status_;
-  ActorOwn<SecretChatProxy> alice_;
-  ActorOwn<SecretChatProxy> bob_;
-  struct Message {
-    int32 id;
-    string text;
-  };
-  std::map<int64, Message> sent_messages_;
-
-  void hangup_shared() final {
-    LOG(INFO) << "Receive hang up: " << get_link_token();
-    send_closure(from(), &SecretChatProxy::on_closed);
-  }
-};
-
-void FakeSecretChatContext::send_net_query(NetQueryPtr query, ActorShared<NetQueryCallback> callback, bool ordered) {
-  send_closure(master_, &Master::send_net_query, std::move(query), std::move(callback), ordered);
-}
-void FakeSecretChatContext::on_inbound_message(UserId user_id, MessageId message_id, int32 date,
-                                               unique_ptr<EncryptedFile> file,
-                                               tl_object_ptr<secret_api::decryptedMessage> message, Promise<> promise) {
-  send_closure(master_, &Master::on_inbound_message, message->message_, std::move(promise));
-}
-void FakeSecretChatContext::on_send_message_error(int64 random_id, Status error, Promise<> promise) {
-  send_closure(master_, &Master::on_send_message_error, random_id, std::move(error), std::move(promise));
-}
-void FakeSecretChatContext::on_send_message_ack(int64 random_id) {
-}
-void FakeSecretChatContext::on_send_message_ok(int64 random_id, MessageId message_id, int32 date,
-                                               unique_ptr<EncryptedFile> file, Promise<> promise) {
-  send_closure(master_, &Master::on_send_message_ok, random_id, std::move(promise));
-}
-void FakeSecretChatContext::on_delete_messages(std::vector<int64> random_id, Promise<> promise) {
-  promise.set_value(Unit());
-}
-void FakeSecretChatContext::on_flush_history(bool, MessageId, Promise<> promise) {
-  promise.set_error(Status::Error("Unsupported"));
-}
-void FakeSecretChatContext::on_read_message(int64, Promise<> promise) {
-  promise.set_error(Status::Error("Unsupported"));
-}
-
-TEST(Secret, go) {
-  return;
-  ConcurrentScheduler sched(0, 0);
-
-  Status result;
-  sched.create_actor_unsafe<Master>(0, "HandshakeTestActor", &result).release();
-  sched.start();
-  while (sched.run_main(10)) {
-    // empty;
-  }
-  sched.finish();
-
-  if (result.is_error()) {
-    LOG(ERROR) << result;
-  }
-  ASSERT_TRUE(result.is_ok());
-}
-
-}  // namespace td
diff --git a/third-party/td/td/test/secure_storage.cpp b/third-party/td/td/test/secure_storage.cpp
deleted file mode 100644
index fa1cc95fa2..0000000000
--- a/third-party/td/td/test/secure_storage.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SecureStorage.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/port/path.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/tests.h"
-
-TEST(SecureStorage, secret) {
-  auto secret = td::secure_storage::Secret::create_new();
-  td::string key = "cucumber";
-  auto encrypted_secret = secret.encrypt(key, "", td::secure_storage::EnryptionAlgorithm::Sha512);
-  ASSERT_TRUE(encrypted_secret.as_slice() != secret.as_slice());
-  auto decrypted_secret = encrypted_secret.decrypt(key, "", td::secure_storage::EnryptionAlgorithm::Sha512).ok();
-  ASSERT_TRUE(secret.as_slice() == decrypted_secret.as_slice());
-  ASSERT_TRUE(encrypted_secret.decrypt("notcucumber", "", td::secure_storage::EnryptionAlgorithm::Sha512).is_error());
-}
-
-TEST(SecureStorage, simple) {
-  td::BufferSlice value("Small tale about cucumbers");
-  auto value_secret = td::secure_storage::Secret::create_new();
-
-  {
-    td::secure_storage::BufferSliceDataView value_view(value.copy());
-    td::BufferSlice prefix = td::secure_storage::gen_random_prefix(value_view.size());
-    td::secure_storage::BufferSliceDataView prefix_view(std::move(prefix));
-    td::secure_storage::ConcatDataView full_value_view(prefix_view, value_view);
-    auto hash = td::secure_storage::calc_value_hash(full_value_view).move_as_ok();
-
-    td::secure_storage::Encryptor encryptor(
-        td::secure_storage::calc_aes_cbc_state_sha512(PSLICE() << value_secret.as_slice() << hash.as_slice()),
-        full_value_view);
-    auto encrypted_value = encryptor.pread(0, encryptor.size()).move_as_ok();
-
-    td::secure_storage::Decryptor decryptor(
-        td::secure_storage::calc_aes_cbc_state_sha512(PSLICE() << value_secret.as_slice() << hash.as_slice()));
-    auto res = decryptor.append(encrypted_value.copy()).move_as_ok();
-    auto decrypted_hash = decryptor.finish().ok();
-    ASSERT_TRUE(decrypted_hash.as_slice() == hash.as_slice());
-    ASSERT_TRUE(res.as_slice() == value.as_slice());
-  }
-
-  {
-    auto encrypted_value = td::secure_storage::encrypt_value(value_secret, value.as_slice()).move_as_ok();
-    auto decrypted_value =
-        td::secure_storage::decrypt_value(value_secret, encrypted_value.hash, encrypted_value.data.as_slice())
-            .move_as_ok();
-    ASSERT_TRUE(decrypted_value.as_slice() == value.as_slice());
-  }
-
-  {
-    td::string value_path = "value.txt";
-    td::string encrypted_path = "encrypted.txt";
-    td::string decrypted_path = "decrypted.txt";
-    td::unlink(value_path).ignore();
-    td::unlink(encrypted_path).ignore();
-    td::unlink(decrypted_path).ignore();
-    td::string file_value(100000, 'a');
-    td::write_file(value_path, file_value).ensure();
-    auto hash = td::secure_storage::encrypt_file(value_secret, value_path, encrypted_path).move_as_ok();
-    td::secure_storage::decrypt_file(value_secret, hash, encrypted_path, decrypted_path).ensure();
-    ASSERT_TRUE(td::read_file(decrypted_path).move_as_ok().as_slice() == file_value);
-    td::unlink(value_path).ignore();
-    td::unlink(encrypted_path).ignore();
-    td::unlink(decrypted_path).ignore();
-  }
-}
diff --git a/third-party/td/td/test/set_with_position.cpp b/third-party/td/td/test/set_with_position.cpp
deleted file mode 100644
index e7b9acee7b..0000000000
--- a/third-party/td/td/test/set_with_position.cpp
+++ /dev/null
@@ -1,263 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/SetWithPosition.h"
-
-#include "td/utils/algorithm.h"
-#include "td/utils/common.h"
-#include "td/utils/misc.h"
-#include "td/utils/Random.h"
-#include "td/utils/tests.h"
-
-#include <algorithm>
-#include <functional>
-#include <set>
-#include <utility>
-
-template <class T>
-class OldSetWithPosition {
- public:
-  void add(T value) {
-    if (td::contains(values_, value)) {
-      return;
-    }
-    values_.push_back(value);
-  }
-  void remove(T value) {
-    auto it = std::find(values_.begin(), values_.end(), value);
-    if (it == values_.end()) {
-      return;
-    }
-    std::size_t i = it - values_.begin();
-    values_.erase(it);
-    if (pos_ > i) {
-      pos_--;
-    }
-  }
-  void reset_position() {
-    pos_ = 0;
-  }
-  T next() {
-    CHECK(has_next());
-    return values_[pos_++];
-  }
-  bool has_next() const {
-    return pos_ < values_.size();
-  }
-  void merge(OldSetWithPosition &&other) {
-    OldSetWithPosition res;
-    for (std::size_t i = 0; i < pos_; i++) {
-      res.add(values_[i]);
-    }
-    for (std::size_t i = 0; i < other.pos_; i++) {
-      res.add(other.values_[i]);
-    }
-    res.pos_ = res.values_.size();
-    for (std::size_t i = pos_; i < values_.size(); i++) {
-      res.add(values_[i]);
-    }
-    for (std::size_t i = other.pos_; i < other.values_.size(); i++) {
-      res.add(other.values_[i]);
-    }
-    *this = std::move(res);
-  }
-
- private:
-  td::vector<T> values_;
-  std::size_t pos_{0};
-};
-
-template <class T, template <class> class SetWithPosition>
-class CheckedSetWithPosition {
- public:
-  void add(int x) {
-    s_.add(x);
-    if (checked_.count(x) != 0) {
-      return;
-    }
-    not_checked_.insert(x);
-  }
-  void remove(int x) {
-    s_.remove(x);
-    checked_.erase(x);
-    not_checked_.erase(x);
-  }
-  bool has_next() const {
-    auto res = !not_checked_.empty();
-    //LOG(ERROR) << res;
-    ASSERT_EQ(res, s_.has_next());
-    return res;
-  }
-  void reset_position() {
-    s_.reset_position();
-    not_checked_.insert(checked_.begin(), checked_.end());
-    checked_ = {};
-  }
-
-  T next() {
-    CHECK(has_next());
-    auto next = s_.next();
-    //LOG(ERROR) << next;
-    ASSERT_TRUE(not_checked_.count(next) != 0);
-    not_checked_.erase(next);
-    checked_.insert(next);
-    return next;
-  }
-
-  void merge(CheckedSetWithPosition &&other) {
-    if (size() < other.size()) {
-      std::swap(*this, other);
-      std::swap(this->s_, other.s_);
-    }
-    for (auto x : other.checked_) {
-      not_checked_.erase(x);
-      checked_.insert(x);
-    }
-    for (auto x : other.not_checked_) {
-      if (checked_.count(x) != 0) {
-        continue;
-      }
-      not_checked_.insert(x);
-    }
-    s_.merge(std::move(other.s_));
-  }
-  std::size_t size() const {
-    return checked_.size() + not_checked_.size();
-  }
-
- private:
-  std::set<T> checked_;
-  std::set<T> not_checked_;
-  td::SetWithPosition<T> s_;
-};
-
-template <template <class> class RawSet>
-static void test_hands() {
-  CheckedSetWithPosition<int, RawSet> a;
-  a.add(1);
-  a.add(2);
-  a.next();
-
-  CheckedSetWithPosition<int, RawSet> b;
-  b.add(1);
-  b.add(3);
-
-  a.merge(std::move(b));
-  while (a.has_next()) {
-    a.next();
-  }
-}
-
-#if !TD_CLANG
-template <template <class> class RawSet>
-static void test_stress() {
-  td::Random::Xorshift128plus rnd(123);
-  using Set = CheckedSetWithPosition<int, RawSet>;
-  for (int t = 0; t < 10; t++) {
-    td::vector<td::unique_ptr<Set>> sets(100);
-    for (auto &s : sets) {
-      s = td::make_unique<Set>();
-    }
-    int n;
-    auto merge = [&] {
-      int a = rnd.fast(0, n - 2);
-      int b = rnd.fast(a + 1, n - 1);
-      std::swap(sets[b], sets[n - 1]);
-      std::swap(sets[a], sets[n - 2]);
-      a = n - 2;
-      b = n - 1;
-      if (rnd.fast(0, 1) == 0) {
-        std::swap(sets[a], sets[b]);
-      }
-      sets[a]->merge(std::move(*sets[b]));
-      sets.pop_back();
-    };
-    auto next = [&] {
-      int i = rnd.fast(0, n - 1);
-      if (sets[i]->has_next()) {
-        sets[i]->next();
-      }
-    };
-    auto add = [&] {
-      int i = rnd.fast(0, n - 1);
-      int x = rnd.fast(0, 10);
-      sets[i]->add(x);
-    };
-    auto remove = [&] {
-      int i = rnd.fast(0, n - 1);
-      int x = rnd.fast(0, 10);
-      sets[i]->remove(x);
-    };
-    auto reset_position = [&] {
-      int i = rnd.fast(0, n - 1);
-      sets[i]->reset_position();
-    };
-    struct Step {
-      std::function<void()> func;
-      td::uint32 weight;
-    };
-    td::vector<Step> steps{{merge, 1}, {next, 10}, {add, 10}, {remove, 10}, {reset_position, 5}};
-    td::uint32 steps_sum = 0;
-    for (auto &step : steps) {
-      steps_sum += step.weight;
-    }
-
-    while (true) {
-      n = static_cast<int>(sets.size());
-      if (n == 1) {
-        break;
-      }
-      auto w = rnd() % steps_sum;
-      for (auto &step : steps) {
-        if (w < step.weight) {
-          step.func();
-          break;
-        }
-        w -= step.weight;
-      }
-    }
-  }
-}
-#endif
-
-template <template <class> class RawSet>
-static void test_speed() {
-  td::Random::Xorshift128plus rnd(123);
-  using Set = CheckedSetWithPosition<int, RawSet>;
-  const size_t total_size = 1 << 13;
-  td::vector<td::unique_ptr<Set>> sets(total_size);
-  for (size_t i = 0; i < sets.size(); i++) {
-    sets[i] = td::make_unique<Set>();
-    sets[i]->add(td::narrow_cast<int>(i));
-  }
-  for (size_t d = 1; d < sets.size(); d *= 2) {
-    for (size_t i = 0; i < sets.size(); i += 2 * d) {
-      size_t j = i + d;
-      CHECK(j < sets.size());
-      sets[i]->merge(std::move(*sets[j]));
-    }
-  }
-  ASSERT_EQ(total_size, sets[0]->size());
-}
-
-TEST(SetWithPosition, hands) {
-  test_hands<td::FastSetWithPosition>();
-  test_hands<OldSetWithPosition>();
-  test_hands<td::SetWithPosition>();
-}
-
-#if !TD_CLANG
-TEST(SetWithPosition, stress) {
-  test_stress<td::FastSetWithPosition>();
-  test_stress<OldSetWithPosition>();
-  test_stress<td::SetWithPosition>();
-}
-#endif
-
-TEST(SetWithPosition, speed) {
-  test_speed<td::FastSetWithPosition>();
-  test_speed<td::SetWithPosition>();
-}
diff --git a/third-party/td/td/test/string_cleaning.cpp b/third-party/td/td/test/string_cleaning.cpp
deleted file mode 100644
index 38d9c4cd63..0000000000
--- a/third-party/td/td/test/string_cleaning.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/telegram/misc.h"
-
-#include "td/utils/common.h"
-#include "td/utils/Slice.h"
-#include "td/utils/tests.h"
-
-TEST(StringCleaning, clean_name) {
-  ASSERT_EQ("@mention", td::clean_name("@mention", 1000000));
-  ASSERT_EQ("@mention", td::clean_name("     @mention    ", 1000000));
-  ASSERT_EQ("@MENTION", td::clean_name("@MENTION", 1000000));
-  ASSERT_EQ("ЛШТШФУМ", td::clean_name("ЛШТШФУМ", 1000000));
-  ASSERT_EQ("....", td::clean_name("....", 1000000));
-  ASSERT_EQ(". ASD ..", td::clean_name(".   ASD   ..", 1000000));
-  ASSERT_EQ(". ASD", td::clean_name(".   ASD   ..", 10));
-  ASSERT_EQ(". ASD", td::clean_name(".\n\n\nASD\n\n\n..", 10));
-  ASSERT_EQ("", td::clean_name("\n\n\n\n\n\n", 1000000));
-  ASSERT_EQ("",
-            td::clean_name("\xC2\xA0\xC2\xA0\xC2\xA0\xC2\xA0\xC2\xA0\n\n\n\n\n\n      \n\xC2\xA0 \xC2\xA0 \n", 100000));
-  ASSERT_EQ("abc", td::clean_name("\xC2\xA0\xC2\xA0"
-                                  "abc\xC2\xA0\xC2\xA0\xC2\xA0\xC2\xA0",
-                                  1000000));
-}
-
-TEST(StringCleaning, clean_username) {
-  ASSERT_EQ("@mention", td::clean_username("@mention"));
-  ASSERT_EQ("@mention", td::clean_username("     @mention    "));
-  ASSERT_EQ("@mention", td::clean_username("@MENTION"));
-  ASSERT_EQ("ЛШТШФУМ", td::clean_username("ЛШТШФУМ"));
-  ASSERT_EQ("", td::clean_username("...."));
-  ASSERT_EQ("asd", td::clean_username(".   ASD   .."));
-}
-
-static void check_clean_input_string(td::string str, const td::string &expected, bool expected_result) {
-  auto result = td::clean_input_string(str);
-  ASSERT_EQ(expected_result, result);
-  if (result) {
-    ASSERT_EQ(expected, str);
-  }
-}
-
-TEST(StringCleaning, clean_input_string) {
-  check_clean_input_string("/abc", "/abc", true);
-  check_clean_input_string(td::string(50000, 'a'), td::string(34996, 'a'), true);
-  check_clean_input_string("\xff", "", false);
-  check_clean_input_string("\xc0\x80", "", false);
-  check_clean_input_string("\xd0", "", false);
-  check_clean_input_string("\xe0\xaf", "", false);
-  check_clean_input_string("\xf0\xa6", "", false);
-  check_clean_input_string("\xf0\xa6\x88", "", false);
-  check_clean_input_string("\xf4\x8f\xbf\xbf", "\xf4\x8f\xbf\xbf", true);
-  check_clean_input_string("\xf4\x8f\xbf\xc0", "", false);
-  check_clean_input_string("\r\r\r\r\r\r\r", "", true);
-  check_clean_input_string("\r\n\r\n\r\n\r\n\r\n\r\n\r", "\n\n\n\n\n\n", true);
-  check_clean_input_string(td::Slice("\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13"
-                                     "\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20\x21")
-                               .str(),
-                           "          \x0a                     \x21", true);
-  check_clean_input_string(
-      "\xe2\x80\xa7\xe2\x80\xa8\xe2\x80\xa9\xe2\x80\xaa\xe2\x80\xab\xe2\x80\xac\xe2\x80\xad\xe2\x80\xae\xe2\x80\xaf",
-      "\xe2\x80\xa7\xe2\x80\xaf", true);
-  check_clean_input_string(
-      "\xe2\x80\x8f\xe2\x80\x8f  \xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8e\xe2\x80\x8c \xe2\x80\x8f\xe2\x80\x8e "
-      "\xe2\x80\x8f",
-      "\xe2\x80\x8c\xe2\x80\x8f  \xe2\x80\x8c\xe2\x80\x8c\xe2\x80\x8e\xe2\x80\x8c \xe2\x80\x8c\xe2\x80\x8e "
-      "\xe2\x80\x8f",
-      true);
-  check_clean_input_string("\xcc\xb3\xcc\xbf\xcc\x8a", "", true);
-}
-
-static void check_strip_empty_characters(td::string str, std::size_t max_length, const td::string &expected,
-                                         bool strip_rtlo = false) {
-  ASSERT_EQ(expected, td::strip_empty_characters(std::move(str), max_length, strip_rtlo));
-}
-
-TEST(StringCleaning, strip_empty_characters) {
-  check_strip_empty_characters("/abc", 4, "/abc");
-  check_strip_empty_characters("/abc", 3, "/ab");
-  check_strip_empty_characters("/abc", 0, "");
-  check_strip_empty_characters("/abc", 10000000, "/abc");
-  td::string spaces =
-      u8"\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u2800\u3000\uFFFC"
-      u8"\uFFFC";
-  td::string spaces_replace = "                   ";
-  td::string rtlo = u8"\u202E";
-  td::string empty = "\xE2\x80\x8B\xE2\x80\x8C\xE2\x80\x8D\xE2\x80\x8E\xE2\x80\x8F\xE2\x80\xAE\xC2\xA0\xC2\xA0";
-
-  check_strip_empty_characters(spaces, 1000000, "");
-  check_strip_empty_characters(spaces + rtlo, 1000000, "");
-  check_strip_empty_characters(spaces + rtlo, 1000000, "", true);
-  check_strip_empty_characters(spaces + rtlo + "a", 1000000, rtlo + "a");
-  check_strip_empty_characters(spaces + rtlo + "a", 1000000, "a", true);
-  check_strip_empty_characters(empty, 1000000, "");
-  check_strip_empty_characters(empty + "a", 1000000, empty + "a");
-  check_strip_empty_characters(spaces + empty + spaces + "abc" + spaces, 1000000, empty + spaces_replace + "abc");
-  check_strip_empty_characters(spaces + spaces + empty + spaces + spaces + empty + empty, 1000000, "");
-  check_strip_empty_characters("\r\r\r\r\r\r\r", 1000000, "");
-  check_strip_empty_characters("\r\n\r\n\r\n\r\n\r\n\r\n\r", 1000000, "");
-  check_strip_empty_characters(td::Slice(" \t\r\n\0\va\v\0\n\r\t ").str(), 1000000, "a");
-  check_strip_empty_characters(td::Slice("\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12"
-                                         "\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20\x21")
-                                   .str(),
-                               1000000,
-                               "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14"
-                               "\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20\x21");
-  check_strip_empty_characters("\xcc\xb3\xcc\xbf\xcc\x8a", 2, "\xcc\xb3\xcc\xbf");
-  check_strip_empty_characters(
-      "\xe2\x80\xa7\xe2\x80\xa8\xe2\x80\xa9\xe2\x80\xaa\xe2\x80\xab\xe2\x80\xac\xe2\x80\xad\xe2\x80\xae", 3,
-      "\xe2\x80\xa7\xe2\x80\xa8\xe2\x80\xa9");
-  check_strip_empty_characters(
-      "\xF3\x9F\xBF\xBF\xF3\xA0\x80\x80\xF3\xA0\x80\x81\xF3\xA0\x80\xBF\xF3\xA0\x81\x80\xF3\xA0\x81\x81\xF3\xA0\x81\xBF"
-      "\xF3\xA0\x82\x80",
-      9, "\xF3\x9F\xBF\xBF      \xF3\xA0\x82\x80");
-}
diff --git a/third-party/td/td/test/tdclient.cpp b/third-party/td/td/test/tdclient.cpp
deleted file mode 100644
index 0c2b123305..0000000000
--- a/third-party/td/td/test/tdclient.cpp
+++ /dev/null
@@ -1,1192 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "data.h"
-
-#include "td/telegram/Client.h"
-#include "td/telegram/ClientActor.h"
-#include "td/telegram/files/PartsManager.h"
-#include "td/telegram/td_api.h"
-
-#include "td/actor/actor.h"
-#include "td/actor/ConcurrentScheduler.h"
-#include "td/actor/PromiseFuture.h"
-
-#include "td/utils/base64.h"
-#include "td/utils/BufferedFd.h"
-#include "td/utils/common.h"
-#include "td/utils/filesystem.h"
-#include "td/utils/format.h"
-#include "td/utils/logging.h"
-#include "td/utils/misc.h"
-#include "td/utils/port/FileFd.h"
-#include "td/utils/port/path.h"
-#include "td/utils/port/sleep.h"
-#include "td/utils/port/thread.h"
-#include "td/utils/Promise.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Status.h"
-#include "td/utils/tests.h"
-
-#include <atomic>
-#include <cstdio>
-#include <functional>
-#include <map>
-#include <memory>
-#include <mutex>
-#include <set>
-#include <utility>
-
-template <class T>
-static void check_td_error(T &result) {
-  LOG_CHECK(result->get_id() != td::td_api::error::ID) << to_string(result);
-}
-
-class TestClient final : public td::Actor {
- public:
-  explicit TestClient(td::string name) : name_(std::move(name)) {
-  }
-  struct Update {
-    td::uint64 id;
-    td::tl_object_ptr<td::td_api::Object> object;
-    Update(td::uint64 id, td::tl_object_ptr<td::td_api::Object> object) : id(id), object(std::move(object)) {
-    }
-  };
-  class Listener {
-   public:
-    Listener() = default;
-    Listener(const Listener &) = delete;
-    Listener &operator=(const Listener &) = delete;
-    Listener(Listener &&) = delete;
-    Listener &operator=(Listener &&) = delete;
-    virtual ~Listener() = default;
-    virtual void start_listen(TestClient *client) {
-    }
-    virtual void stop_listen() {
-    }
-    virtual void on_update(std::shared_ptr<Update> update) = 0;
-  };
-  void close(td::Promise<> close_promise) {
-    close_promise_ = std::move(close_promise);
-    td_client_.reset();
-  }
-
-  td::unique_ptr<td::TdCallback> make_td_callback() {
-    class TdCallbackImpl final : public td::TdCallback {
-     public:
-      explicit TdCallbackImpl(td::ActorId<TestClient> client) : client_(client) {
-      }
-      void on_result(td::uint64 id, td::tl_object_ptr<td::td_api::Object> result) final {
-        send_closure(client_, &TestClient::on_result, id, std::move(result));
-      }
-      void on_error(td::uint64 id, td::tl_object_ptr<td::td_api::error> error) final {
-        send_closure(client_, &TestClient::on_error, id, std::move(error));
-      }
-      TdCallbackImpl(const TdCallbackImpl &) = delete;
-      TdCallbackImpl &operator=(const TdCallbackImpl &) = delete;
-      TdCallbackImpl(TdCallbackImpl &&) = delete;
-      TdCallbackImpl &operator=(TdCallbackImpl &&) = delete;
-      ~TdCallbackImpl() final {
-        send_closure(client_, &TestClient::on_closed);
-      }
-
-     private:
-      td::ActorId<TestClient> client_;
-    };
-    return td::make_unique<TdCallbackImpl>(actor_id(this));
-  }
-
-  void add_listener(td::unique_ptr<Listener> listener) {
-    auto *ptr = listener.get();
-    listeners_.push_back(std::move(listener));
-    ptr->start_listen(this);
-  }
-  void remove_listener(Listener *listener) {
-    pending_remove_.push_back(listener);
-  }
-  void do_pending_remove_listeners() {
-    for (auto listener : pending_remove_) {
-      do_remove_listener(listener);
-    }
-    pending_remove_.clear();
-  }
-  void do_remove_listener(Listener *listener) {
-    for (size_t i = 0; i < listeners_.size(); i++) {
-      if (listeners_[i].get() == listener) {
-        listener->stop_listen();
-        listeners_.erase(listeners_.begin() + i);
-        break;
-      }
-    }
-  }
-
-  void on_result(td::uint64 id, td::tl_object_ptr<td::td_api::Object> result) {
-    on_update(std::make_shared<Update>(id, std::move(result)));
-  }
-  void on_error(td::uint64 id, td::tl_object_ptr<td::td_api::error> error) {
-    on_update(std::make_shared<Update>(id, std::move(error)));
-  }
-  void on_update(std::shared_ptr<Update> update) {
-    for (auto &listener : listeners_) {
-      listener->on_update(update);
-    }
-    do_pending_remove_listeners();
-  }
-
-  void on_closed() {
-    stop();
-  }
-
-  void start_up() final {
-    td::rmrf(name_).ignore();
-    auto old_context = set_context(std::make_shared<td::ActorContext>());
-    set_tag(name_);
-    LOG(INFO) << "Start up!";
-
-    td_client_ = td::create_actor<td::ClientActor>("Td-proxy", make_td_callback());
-  }
-
-  td::ActorOwn<td::ClientActor> td_client_;
-
-  td::string name_;
-
- private:
-  td::vector<td::unique_ptr<Listener>> listeners_;
-  td::vector<Listener *> pending_remove_;
-
-  td::Promise<> close_promise_;
-};
-
-class TestClinetTask : public TestClient::Listener {
- public:
-  void on_update(std::shared_ptr<TestClient::Update> update) final {
-    auto it = sent_queries_.find(update->id);
-    if (it != sent_queries_.end()) {
-      it->second(std::move(update->object));
-      sent_queries_.erase(it);
-    }
-    process_update(update);
-  }
-  void start_listen(TestClient *client) final {
-    client_ = client;
-    start_up();
-  }
-  virtual void process_update(std::shared_ptr<TestClient::Update> update) {
-  }
-
-  template <class F>
-  void send_query(td::tl_object_ptr<td::td_api::Function> function, F callback) {
-    auto id = current_query_id_++;
-    sent_queries_[id] = std::forward<F>(callback);
-    send_closure(client_->td_client_, &td::ClientActor::request, id, std::move(function));
-  }
-
- protected:
-  std::map<td::uint64, std::function<void(td::tl_object_ptr<td::td_api::Object>)>> sent_queries_;
-  TestClient *client_ = nullptr;
-  td::uint64 current_query_id_ = 1;
-
-  virtual void start_up() {
-  }
-  void stop() {
-    client_->remove_listener(this);
-  }
-};
-
-class DoAuthentication final : public TestClinetTask {
- public:
-  DoAuthentication(td::string name, td::string phone, td::string code, td::Promise<> promise)
-      : name_(std::move(name)), phone_(std::move(phone)), code_(std::move(code)), promise_(std::move(promise)) {
-  }
-  void start_up() final {
-    send_query(td::make_tl_object<td::td_api::getOption>("version"),
-               [](auto res) { LOG(INFO) << td::td_api::to_string(res); });
-  }
-  void process_authorization_state(td::tl_object_ptr<td::td_api::Object> authorization_state) {
-    td::tl_object_ptr<td::td_api::Function> function;
-    switch (authorization_state->get_id()) {
-      case td::td_api::authorizationStateWaitPhoneNumber::ID:
-        function = td::make_tl_object<td::td_api::setAuthenticationPhoneNumber>(phone_, nullptr);
-        break;
-      case td::td_api::authorizationStateWaitEmailAddress::ID:
-        function = td::make_tl_object<td::td_api::setAuthenticationEmailAddress>("alice_test@gmail.com");
-        break;
-      case td::td_api::authorizationStateWaitEmailCode::ID:
-        function = td::make_tl_object<td::td_api::checkAuthenticationEmailCode>(
-            td::make_tl_object<td::td_api::emailAddressAuthenticationCode>(code_));
-        break;
-      case td::td_api::authorizationStateWaitCode::ID:
-        function = td::make_tl_object<td::td_api::checkAuthenticationCode>(code_);
-        break;
-      case td::td_api::authorizationStateWaitRegistration::ID:
-        function = td::make_tl_object<td::td_api::registerUser>(name_, "", false);
-        break;
-      case td::td_api::authorizationStateWaitTdlibParameters::ID: {
-        auto request = td::td_api::make_object<td::td_api::setTdlibParameters>();
-        request->use_test_dc_ = true;
-        request->database_directory_ = name_ + TD_DIR_SLASH;
-        request->use_message_database_ = true;
-        request->use_secret_chats_ = true;
-        request->api_id_ = 94575;
-        request->api_hash_ = "a3406de8d171bb422bb6ddf3bbd800e2";
-        request->system_language_code_ = "en";
-        request->device_model_ = "Desktop";
-        request->application_version_ = "tdclient-test";
-        function = std::move(request);
-        break;
-      }
-      case td::td_api::authorizationStateReady::ID:
-        on_authorization_ready();
-        return;
-      default:
-        LOG(ERROR) << "Unexpected authorization state " << to_string(authorization_state);
-        UNREACHABLE();
-    }
-    send_query(std::move(function), [](auto res) { LOG_CHECK(res->get_id() == td::td_api::ok::ID) << to_string(res); });
-  }
-  void on_authorization_ready() {
-    LOG(INFO) << "Authorization is completed";
-    stop();
-  }
-
- private:
-  td::string name_;
-  td::string phone_;
-  td::string code_;
-  td::Promise<> promise_;
-
-  void process_update(std::shared_ptr<TestClient::Update> update) final {
-    if (!update->object) {
-      return;
-    }
-    if (update->object->get_id() == td::td_api::updateAuthorizationState::ID) {
-      auto update_authorization_state = td::move_tl_object_as<td::td_api::updateAuthorizationState>(update->object);
-      process_authorization_state(std::move(update_authorization_state->authorization_state_));
-    }
-  }
-};
-
-class SetUsername final : public TestClinetTask {
- public:
-  SetUsername(td::string username, td::Promise<> promise)
-      : username_(std::move(username)), promise_(std::move(promise)) {
-  }
-
- private:
-  td::string username_;
-  td::Promise<> promise_;
-  td::int64 self_id_ = 0;
-  td::string tag_;
-
-  void start_up() final {
-    send_query(td::make_tl_object<td::td_api::getMe>(), [this](auto res) { this->process_me_user(std::move(res)); });
-  }
-
-  void process_me_user(td::tl_object_ptr<td::td_api::Object> res) {
-    CHECK(res->get_id() == td::td_api::user::ID);
-    auto user = td::move_tl_object_as<td::td_api::user>(res);
-    self_id_ = user->id_;
-    auto current_username = user->usernames_ != nullptr ? user->usernames_->editable_username_ : td::string();
-    if (current_username != username_) {
-      LOG(INFO) << "Set username: " << username_;
-      send_query(td::make_tl_object<td::td_api::setUsername>(username_), [this](auto res) {
-        CHECK(res->get_id() == td::td_api::ok::ID);
-        this->send_self_message();
-      });
-    } else {
-      send_self_message();
-    }
-  }
-
-  void send_self_message() {
-    tag_ = PSTRING() << td::format::as_hex(td::Random::secure_int64());
-
-    send_query(td::make_tl_object<td::td_api::createPrivateChat>(self_id_, false), [this](auto res) {
-      CHECK(res->get_id() == td::td_api::chat::ID);
-      auto chat = td::move_tl_object_as<td::td_api::chat>(res);
-      this->send_query(td::make_tl_object<td::td_api::sendMessage>(
-                           chat->id_, 0, nullptr, nullptr, nullptr,
-                           td::make_tl_object<td::td_api::inputMessageText>(
-                               td::make_tl_object<td::td_api::formattedText>(PSTRING() << tag_ << " INIT", td::Auto()),
-                               nullptr, false)),
-                       [](auto res) {});
-    });
-  }
-
-  void process_update(std::shared_ptr<TestClient::Update> update) final {
-    if (!update->object) {
-      return;
-    }
-    if (update->object->get_id() == td::td_api::updateMessageSendSucceeded::ID) {
-      auto updateNewMessage = td::move_tl_object_as<td::td_api::updateMessageSendSucceeded>(update->object);
-      auto &message = updateNewMessage->message_;
-      if (message->content_->get_id() == td::td_api::messageText::ID) {
-        auto messageText = td::move_tl_object_as<td::td_api::messageText>(message->content_);
-        auto text = messageText->text_->text_;
-        if (text.substr(0, tag_.size()) == tag_) {
-          LOG(INFO) << "Receive self-message";
-          return stop();
-        }
-      }
-    }
-  }
-};
-
-class CheckTestA final : public TestClinetTask {
- public:
-  CheckTestA(td::string tag, td::Promise<> promise) : tag_(std::move(tag)), promise_(std::move(promise)) {
-  }
-
- private:
-  td::string tag_;
-  td::Promise<> promise_;
-  td::string previous_text_;
-  int cnt_ = 20;
-
-  void process_update(std::shared_ptr<TestClient::Update> update) final {
-    if (update->object->get_id() == td::td_api::updateNewMessage::ID) {
-      auto updateNewMessage = td::move_tl_object_as<td::td_api::updateNewMessage>(update->object);
-      auto &message = updateNewMessage->message_;
-      if (message->content_->get_id() == td::td_api::messageText::ID) {
-        auto messageText = td::move_tl_object_as<td::td_api::messageText>(message->content_);
-        auto text = messageText->text_->text_;
-        if (text.substr(0, tag_.size()) == tag_) {
-          LOG_CHECK(text > previous_text_) << td::tag("now", text) << td::tag("previous", previous_text_);
-          previous_text_ = text;
-          cnt_--;
-          LOG(INFO) << "Receive " << td::tag("text", text) << td::tag("left", cnt_);
-          if (cnt_ == 0) {
-            return stop();
-          }
-        }
-      }
-    }
-  }
-};
-
-class TestA final : public TestClinetTask {
- public:
-  TestA(td::string tag, td::string username) : tag_(std::move(tag)), username_(std::move(username)) {
-  }
-
-  void start_up() final {
-    send_query(td::make_tl_object<td::td_api::searchPublicChat>(username_), [this](auto res) {
-      CHECK(res->get_id() == td::td_api::chat::ID);
-      auto chat = td::move_tl_object_as<td::td_api::chat>(res);
-      for (int i = 0; i < 20; i++) {
-        this->send_query(
-            td::make_tl_object<td::td_api::sendMessage>(
-                chat->id_, 0, nullptr, nullptr, nullptr,
-                td::make_tl_object<td::td_api::inputMessageText>(
-                    td::make_tl_object<td::td_api::formattedText>(PSTRING() << tag_ << " " << (1000 + i), td::Auto()),
-                    nullptr, false)),
-            [&](auto res) { this->stop(); });
-      }
-    });
-  }
-
- private:
-  td::string tag_;
-  td::string username_;
-};
-
-class TestSecretChat final : public TestClinetTask {
- public:
-  TestSecretChat(td::string tag, td::string username) : tag_(std::move(tag)), username_(std::move(username)) {
-  }
-
-  void start_up() final {
-    auto f = [this](auto res) {
-      CHECK(res->get_id() == td::td_api::chat::ID);
-      auto chat = td::move_tl_object_as<td::td_api::chat>(res);
-      this->chat_id_ = chat->id_;
-      this->secret_chat_id_ = td::move_tl_object_as<td::td_api::chatTypeSecret>(chat->type_)->secret_chat_id_;
-    };
-    send_query(td::make_tl_object<td::td_api::searchPublicChat>(username_), [this, f = std::move(f)](auto res) mutable {
-      CHECK(res->get_id() == td::td_api::chat::ID);
-      auto chat = td::move_tl_object_as<td::td_api::chat>(res);
-      CHECK(chat->type_->get_id() == td::td_api::chatTypePrivate::ID);
-      auto info = td::move_tl_object_as<td::td_api::chatTypePrivate>(chat->type_);
-      this->send_query(td::make_tl_object<td::td_api::createNewSecretChat>(info->user_id_), std::move(f));
-    });
-  }
-
-  void process_update(std::shared_ptr<TestClient::Update> update) final {
-    if (!update->object) {
-      return;
-    }
-    if (update->object->get_id() == td::td_api::updateSecretChat::ID) {
-      auto update_secret_chat = td::move_tl_object_as<td::td_api::updateSecretChat>(update->object);
-      if (update_secret_chat->secret_chat_->id_ != secret_chat_id_ ||
-          update_secret_chat->secret_chat_->state_->get_id() != td::td_api::secretChatStateReady::ID) {
-        return;
-      }
-      LOG(INFO) << "Send encrypted messages";
-      for (int i = 0; i < 20; i++) {
-        send_query(
-            td::make_tl_object<td::td_api::sendMessage>(
-                chat_id_, 0, nullptr, nullptr, nullptr,
-                td::make_tl_object<td::td_api::inputMessageText>(
-                    td::make_tl_object<td::td_api::formattedText>(PSTRING() << tag_ << " " << (1000 + i), td::Auto()),
-                    nullptr, false)),
-            [](auto res) {});
-      }
-    }
-  }
-
- private:
-  td::string tag_;
-  td::string username_;
-  td::int64 secret_chat_id_ = 0;
-  td::int64 chat_id_ = 0;
-};
-
-class TestFileGenerated final : public TestClinetTask {
- public:
-  TestFileGenerated(td::string tag, td::string username) : tag_(std::move(tag)), username_(std::move(username)) {
-  }
-
-  void start_up() final {
-  }
-
-  void process_update(std::shared_ptr<TestClient::Update> update) final {
-    if (!update->object) {
-      return;
-    }
-    if (update->object->get_id() == td::td_api::updateNewMessage::ID) {
-      auto updateNewMessage = td::move_tl_object_as<td::td_api::updateNewMessage>(update->object);
-      auto &message = updateNewMessage->message_;
-      chat_id_ = message->chat_id_;
-      if (message->content_->get_id() == td::td_api::messageText::ID) {
-        auto messageText = td::move_tl_object_as<td::td_api::messageText>(message->content_);
-        auto text = messageText->text_->text_;
-        if (text.substr(0, tag_.size()) == tag_) {
-          if (text.substr(tag_.size() + 1) == "ONE_FILE") {
-            return one_file();
-          }
-        }
-      }
-    } else if (update->object->get_id() == td::td_api::updateFileGenerationStart::ID) {
-      auto info = td::move_tl_object_as<td::td_api::updateFileGenerationStart>(update->object);
-      generate_file(info->generation_id_, info->original_path_, info->destination_path_, info->conversion_);
-    } else if (update->object->get_id() == td::td_api::updateFile::ID) {
-      auto file = td::move_tl_object_as<td::td_api::updateFile>(update->object);
-      LOG(INFO) << to_string(file);
-    }
-  }
-
-  void one_file() {
-    LOG(ERROR) << "Start one_file test";
-    auto file_path = PSTRING() << "test_documents" << TD_DIR_SLASH << "a.txt";
-    td::mkpath(file_path).ensure();
-    auto raw_file =
-        td::FileFd::open(file_path, td::FileFd::Flags::Create | td::FileFd::Flags::Truncate | td::FileFd::Flags::Write)
-            .move_as_ok();
-    auto file = td::BufferedFd<td::FileFd>(std::move(raw_file));
-    for (int i = 1; i < 100000; i++) {
-      file.write(PSLICE() << i << "\n").ensure();
-    }
-    file.flush_write().ensure();  // important
-    file.close();
-    send_query(td::make_tl_object<td::td_api::sendMessage>(
-                   chat_id_, 0, nullptr, nullptr, nullptr,
-                   td::make_tl_object<td::td_api::inputMessageDocument>(
-                       td::make_tl_object<td::td_api::inputFileGenerated>(file_path, "square", 0),
-                       td::make_tl_object<td::td_api::inputThumbnail>(
-                           td::make_tl_object<td::td_api::inputFileGenerated>(file_path, "thumbnail", 0), 0, 0),
-                       true, td::make_tl_object<td::td_api::formattedText>(tag_, td::Auto()))),
-               [](auto res) { check_td_error(res); });
-
-    send_query(td::make_tl_object<td::td_api::sendMessage>(
-                   chat_id_, 0, nullptr, nullptr, nullptr,
-                   td::make_tl_object<td::td_api::inputMessageDocument>(
-                       td::make_tl_object<td::td_api::inputFileGenerated>(file_path, "square", 0), nullptr, true,
-                       td::make_tl_object<td::td_api::formattedText>(tag_, td::Auto()))),
-               [](auto res) { check_td_error(res); });
-  }
-
-  class GenerateFile final : public td::Actor {
-   public:
-    GenerateFile(TestClinetTask *parent, td::int64 id, td::string original_path, td::string destination_path,
-                 td::string conversion)
-        : parent_(parent)
-        , id_(id)
-        , original_path_(std::move(original_path))
-        , destination_path_(std::move(destination_path))
-        , conversion_(std::move(conversion)) {
-    }
-
-   private:
-    TestClinetTask *parent_;
-    td::int64 id_;
-    td::string original_path_;
-    td::string destination_path_;
-    td::string conversion_;
-
-    FILE *from = nullptr;
-    FILE *to = nullptr;
-
-    void start_up() final {
-      from = std::fopen(original_path_.c_str(), "rb");
-      CHECK(from);
-      to = std::fopen(destination_path_.c_str(), "wb");
-      CHECK(to);
-      yield();
-    }
-
-    void loop() final {
-      int cnt = 0;
-      while (true) {
-        td::uint32 x;
-        auto r = std::fscanf(from, "%u", &x);
-        if (r != 1) {
-          return stop();
-        }
-        std::fprintf(to, "%u\n", x * x);
-        if (++cnt >= 10000) {
-          break;
-        }
-      }
-      auto ready = std::ftell(to);
-      LOG(ERROR) << "Ready: " << ready;
-      parent_->send_query(td::make_tl_object<td::td_api::setFileGenerationProgress>(
-                              id_, 1039823 /*yeah, exact size of this file*/, td::narrow_cast<td::int32>(ready)),
-                          [](auto result) { check_td_error(result); });
-      set_timeout_in(0.02);
-    }
-    void tear_down() final {
-      std::fclose(from);
-      std::fclose(to);
-      parent_->send_query(td::make_tl_object<td::td_api::finishFileGeneration>(id_, nullptr),
-                          [](auto result) { check_td_error(result); });
-    }
-  };
-
-  void generate_file(td::int64 id, const td::string &original_path, const td::string &destination_path,
-                     const td::string &conversion) {
-    LOG(ERROR) << "Generate file " << td::tag("id", id) << td::tag("original_path", original_path)
-               << td::tag("destination_path", destination_path) << td::tag("conversion", conversion);
-    if (conversion == "square") {
-      td::create_actor<GenerateFile>("GenerateFile", this, id, original_path, destination_path, conversion).release();
-    } else if (conversion == "thumbnail") {
-      td::write_file(destination_path, td::base64url_decode(td::Slice(thumbnail, thumbnail_size)).ok()).ensure();
-      send_query(td::make_tl_object<td::td_api::finishFileGeneration>(id, nullptr),
-                 [](auto result) { check_td_error(result); });
-    } else {
-      LOG(FATAL) << "Unknown " << td::tag("conversion", conversion);
-    }
-  }
-
- private:
-  td::string tag_;
-  td::string username_;
-  td::int64 chat_id_ = 0;
-};
-
-class CheckTestC final : public TestClinetTask {
- public:
-  CheckTestC(td::string username, td::string tag, td::Promise<> promise)
-      : username_(std::move(username)), tag_(std::move(tag)), promise_(std::move(promise)) {
-  }
-
-  void start_up() final {
-    send_query(td::make_tl_object<td::td_api::searchPublicChat>(username_), [this](auto res) {
-      CHECK(res->get_id() == td::td_api::chat::ID);
-      auto chat = td::move_tl_object_as<td::td_api::chat>(res);
-      chat_id_ = chat->id_;
-      this->one_file();
-    });
-  }
-
- private:
-  td::string username_;
-  td::string tag_;
-  td::Promise<> promise_;
-  td::int64 chat_id_ = 0;
-
-  void one_file() {
-    send_query(td::make_tl_object<td::td_api::sendMessage>(
-                   chat_id_, 0, nullptr, nullptr, nullptr,
-                   td::make_tl_object<td::td_api::inputMessageText>(
-                       td::make_tl_object<td::td_api::formattedText>(PSTRING() << tag_ << " ONE_FILE", td::Auto()),
-                       nullptr, false)),
-               [](auto res) { check_td_error(res); });
-  }
-
-  void process_update(std::shared_ptr<TestClient::Update> update) final {
-    if (!update->object) {
-      return;
-    }
-    if (update->object->get_id() == td::td_api::updateNewMessage::ID) {
-      auto updateNewMessage = td::move_tl_object_as<td::td_api::updateNewMessage>(update->object);
-      auto &message = updateNewMessage->message_;
-      if (message->content_->get_id() == td::td_api::messageDocument::ID) {
-        auto messageDocument = td::move_tl_object_as<td::td_api::messageDocument>(message->content_);
-        auto text = messageDocument->caption_->text_;
-        if (text.substr(0, tag_.size()) == tag_) {
-          file_id_to_check_ = messageDocument->document_->document_->id_;
-          LOG(ERROR) << "Receive file " << to_string(messageDocument->document_->document_);
-          send_query(td::make_tl_object<td::td_api::downloadFile>(file_id_to_check_, 1, 0, 0, false),
-                     [](auto res) { check_td_error(res); });
-        }
-      }
-    } else if (update->object->get_id() == td::td_api::updateFile::ID) {
-      auto updateFile = td::move_tl_object_as<td::td_api::updateFile>(update->object);
-      if (updateFile->file_->id_ == file_id_to_check_ && (updateFile->file_->local_->is_downloading_completed_)) {
-        check_file(updateFile->file_->local_->path_);
-      }
-    }
-  }
-
-  void check_file(td::CSlice path) {
-    FILE *from = std::fopen(path.c_str(), "rb");
-    CHECK(from);
-    td::uint32 x;
-    td::uint32 y = 1;
-    while (std::fscanf(from, "%u", &x) == 1) {
-      CHECK(x == y * y);
-      y++;
-    }
-    std::fclose(from);
-    stop();
-  }
-  td::int32 file_id_to_check_ = 0;
-};
-
-class LoginTestActor final : public td::Actor {
- public:
-  explicit LoginTestActor(td::Status *status) : status_(status) {
-    *status_ = td::Status::OK();
-  }
-
- private:
-  td::Status *status_;
-  td::ActorOwn<TestClient> alice_;
-  td::ActorOwn<TestClient> bob_;
-
-  td::string alice_phone_ = "9996636437";
-  td::string bob_phone_ = "9996636438";
-  td::string alice_username_ = "alice_" + alice_phone_;
-  td::string bob_username_ = "bob_" + bob_phone_;
-
-  td::string stage_name_;
-
-  void begin_stage(td::string stage_name, double timeout) {
-    LOG(WARNING) << "Begin stage '" << stage_name << "'";
-    stage_name_ = std::move(stage_name);
-    set_timeout_in(timeout);
-  }
-
-  void start_up() final {
-    begin_stage("Logging in", 160);
-    alice_ = td::create_actor<TestClient>("AliceClient", "alice");
-    bob_ = td::create_actor<TestClient>("BobClient", "bob");
-
-    td::send_closure(alice_, &TestClient::add_listener,
-                     td::make_unique<DoAuthentication>(
-                         "alice", alice_phone_, "33333",
-                         td::create_event_promise(self_closure(this, &LoginTestActor::start_up_fence_dec))));
-
-    td::send_closure(bob_, &TestClient::add_listener,
-                     td::make_unique<DoAuthentication>(
-                         "bob", bob_phone_, "33333",
-                         td::create_event_promise(self_closure(this, &LoginTestActor::start_up_fence_dec))));
-  }
-
-  int start_up_fence_ = 3;
-  void start_up_fence_dec() {
-    --start_up_fence_;
-    if (start_up_fence_ == 0) {
-      init();
-    } else if (start_up_fence_ == 1) {
-      return init();
-      class WaitActor final : public td::Actor {
-       public:
-        WaitActor(double timeout, td::Promise<> promise) : timeout_(timeout), promise_(std::move(promise)) {
-        }
-        void start_up() final {
-          set_timeout_in(timeout_);
-        }
-        void timeout_expired() final {
-          stop();
-        }
-
-       private:
-        double timeout_;
-        td::Promise<> promise_;
-      };
-      td::create_actor<WaitActor>("WaitActor", 2,
-                                  td::create_event_promise(self_closure(this, &LoginTestActor::start_up_fence_dec)))
-          .release();
-    }
-  }
-
-  void init() {
-    td::send_closure(alice_, &TestClient::add_listener,
-                     td::make_unique<SetUsername>(alice_username_, td::create_event_promise(self_closure(
-                                                                       this, &LoginTestActor::init_fence_dec))));
-    td::send_closure(bob_, &TestClient::add_listener,
-                     td::make_unique<SetUsername>(
-                         bob_username_, td::create_event_promise(self_closure(this, &LoginTestActor::init_fence_dec))));
-  }
-
-  int init_fence_ = 2;
-  void init_fence_dec() {
-    if (--init_fence_ == 0) {
-      test_a();
-    }
-  }
-
-  int test_a_fence_ = 2;
-  void test_a_fence() {
-    if (--test_a_fence_ == 0) {
-      test_b();
-    }
-  }
-
-  void test_a() {
-    begin_stage("Ready to create chats", 80);
-    td::string alice_tag = PSTRING() << td::format::as_hex(td::Random::secure_int64());
-    td::string bob_tag = PSTRING() << td::format::as_hex(td::Random::secure_int64());
-
-    td::send_closure(bob_, &TestClient::add_listener,
-                     td::make_unique<CheckTestA>(
-                         alice_tag, td::create_event_promise(self_closure(this, &LoginTestActor::test_a_fence))));
-    td::send_closure(alice_, &TestClient::add_listener,
-                     td::make_unique<CheckTestA>(
-                         bob_tag, td::create_event_promise(self_closure(this, &LoginTestActor::test_a_fence))));
-
-    td::send_closure(alice_, &TestClient::add_listener, td::make_unique<TestA>(alice_tag, bob_username_));
-    td::send_closure(bob_, &TestClient::add_listener, td::make_unique<TestA>(bob_tag, alice_username_));
-    // td::send_closure(alice_, &TestClient::add_listener, td::make_unique<TestChat>(bob_username_));
-  }
-
-  void timeout_expired() final {
-    LOG(FATAL) << "Timeout expired in stage '" << stage_name_ << "'";
-  }
-
-  int test_b_fence_ = 1;
-  void test_b_fence() {
-    if (--test_b_fence_ == 0) {
-      test_c();
-    }
-  }
-
-  int test_c_fence_ = 1;
-  void test_c_fence() {
-    if (--test_c_fence_ == 0) {
-      finish();
-    }
-  }
-
-  void test_b() {
-    begin_stage("Create secret chat", 40);
-    td::string tag = PSTRING() << td::format::as_hex(td::Random::secure_int64());
-
-    td::send_closure(
-        bob_, &TestClient::add_listener,
-        td::make_unique<CheckTestA>(tag, td::create_event_promise(self_closure(this, &LoginTestActor::test_b_fence))));
-    td::send_closure(alice_, &TestClient::add_listener, td::make_unique<TestSecretChat>(tag, bob_username_));
-  }
-
-  void test_c() {
-    begin_stage("Send generated file", 240);
-    td::string tag = PSTRING() << td::format::as_hex(td::Random::secure_int64());
-
-    td::send_closure(
-        bob_, &TestClient::add_listener,
-        td::make_unique<CheckTestC>(alice_username_, tag,
-                                    td::create_event_promise(self_closure(this, &LoginTestActor::test_c_fence))));
-    td::send_closure(alice_, &TestClient::add_listener, td::make_unique<TestFileGenerated>(tag, bob_username_));
-  }
-
-  int finish_fence_ = 2;
-  void finish_fence() {
-    finish_fence_--;
-    if (finish_fence_ == 0) {
-      td::Scheduler::instance()->finish();
-      stop();
-    }
-  }
-
-  void finish() {
-    td::send_closure(alice_, &TestClient::close,
-                     td::create_event_promise(self_closure(this, &LoginTestActor::finish_fence)));
-    td::send_closure(bob_, &TestClient::close,
-                     td::create_event_promise(self_closure(this, &LoginTestActor::finish_fence)));
-  }
-};
-
-class Tdclient_login final : public td::Test {
- public:
-  using Test::Test;
-  bool step() final {
-    if (!is_inited_) {
-      sched_.create_actor_unsafe<LoginTestActor>(0, "LoginTestActor", &result_).release();
-      sched_.start();
-      is_inited_ = true;
-    }
-
-    bool ret = sched_.run_main(10);
-    if (ret) {
-      return true;
-    }
-    sched_.finish();
-    if (result_.is_error()) {
-      LOG(ERROR) << result_;
-    }
-    ASSERT_TRUE(result_.is_ok());
-    return false;
-  }
-
- private:
-  bool is_inited_ = false;
-  td::ConcurrentScheduler sched_{4, 0};
-  td::Status result_;
-};
-//RegisterTest<Tdclient_login> Tdclient_login("Tdclient_login");
-
-TEST(Client, Simple) {
-  td::Client client;
-  // client.execute({1, td::td_api::make_object<td::td_api::setLogTagVerbosityLevel>("actor", 1)});
-  client.send({3, td::make_tl_object<td::td_api::testSquareInt>(3)});
-  while (true) {
-    auto result = client.receive(10);
-    if (result.id == 3) {
-      auto test_int = td::td_api::move_object_as<td::td_api::testInt>(result.object);
-      ASSERT_EQ(test_int->value_, 9);
-      break;
-    }
-  }
-}
-
-TEST(Client, SimpleMulti) {
-  std::vector<td::Client> clients(7);
-  //for (auto &client : clients) {
-  //client.execute({1, td::td_api::make_object<td::td_api::setLogTagVerbosityLevel>("td_requests", 1)});
-  //}
-
-  for (size_t i = 0; i < clients.size(); i++) {
-    clients[i].send({i + 2, td::make_tl_object<td::td_api::testSquareInt>(3)});
-    if (td::Random::fast_bool()) {
-      clients[i].send({1, td::make_tl_object<td::td_api::close>()});
-    }
-  }
-
-  for (size_t i = 0; i < clients.size(); i++) {
-    while (true) {
-      auto result = clients[i].receive(10);
-      if (result.id == i + 2) {
-        CHECK(result.object->get_id() == td::td_api::testInt::ID);
-        auto test_int = td::td_api::move_object_as<td::td_api::testInt>(result.object);
-        ASSERT_EQ(test_int->value_, 9);
-        break;
-      }
-    }
-  }
-}
-
-#if !TD_THREAD_UNSUPPORTED
-TEST(Client, Multi) {
-  td::vector<td::thread> threads;
-  std::atomic<int> ok_count{0};
-  for (int i = 0; i < 4; i++) {
-    threads.emplace_back([i, &ok_count] {
-      for (int j = 0; j < 1000; j++) {
-        td::Client client;
-        auto request_id = static_cast<td::uint64>(j + 2 + 1000 * i);
-        client.send({request_id, td::make_tl_object<td::td_api::testSquareInt>(3)});
-        if (j & 1) {
-          client.send({1, td::make_tl_object<td::td_api::close>()});
-        }
-        while (true) {
-          auto result = client.receive(10);
-          if (result.id == request_id) {
-            ok_count++;
-            if ((j & 1) == 0) {
-              client.send({1, td::make_tl_object<td::td_api::close>()});
-            }
-          }
-          if (result.id == 0 && result.object != nullptr &&
-              result.object->get_id() == td::td_api::updateAuthorizationState::ID &&
-              static_cast<const td::td_api::updateAuthorizationState *>(result.object.get())
-                      ->authorization_state_->get_id() == td::td_api::authorizationStateClosed::ID) {
-            ok_count++;
-            break;
-          }
-        }
-      }
-    });
-  }
-
-  for (auto &thread : threads) {
-    thread.join();
-  }
-  ASSERT_EQ(8 * 1000, ok_count.load());
-}
-
-TEST(Client, Manager) {
-  td::vector<td::thread> threads;
-  td::ClientManager client;
-#if !TD_EVENTFD_UNSUPPORTED  // Client must be used from a single thread if there is no EventFd
-  int threads_n = 4;
-#else
-  int threads_n = 1;
-#endif
-  int clients_n = 1000;
-  client.send(0, 3, td::make_tl_object<td::td_api::testSquareInt>(3));
-  client.send(-1, 3, td::make_tl_object<td::td_api::testSquareInt>(3));
-  for (int i = 0; i < threads_n; i++) {
-    threads.emplace_back([&] {
-      for (int i = 0; i <= clients_n; i++) {
-        auto id = client.create_client_id();
-        if (i != 0) {
-          client.send(id, 3, td::make_tl_object<td::td_api::testSquareInt>(3));
-        }
-      }
-    });
-  }
-  for (auto &thread : threads) {
-    thread.join();
-  }
-
-  std::set<td::int32> ids;
-  while (ids.size() != static_cast<size_t>(threads_n) * clients_n) {
-    auto event = client.receive(10);
-    if (event.client_id == 0 || event.client_id == -1) {
-      ASSERT_EQ(td::td_api::error::ID, event.object->get_id());
-      ASSERT_EQ(400, static_cast<td::td_api::error &>(*event.object).code_);
-      continue;
-    }
-    if (event.request_id == 3) {
-      ASSERT_EQ(td::td_api::testInt::ID, event.object->get_id());
-      ASSERT_TRUE(ids.insert(event.client_id).second);
-    }
-  }
-}
-
-#if !TD_EVENTFD_UNSUPPORTED  // Client must be used from a single thread if there is no EventFd
-TEST(Client, Close) {
-  std::atomic<bool> stop_send{false};
-  std::atomic<bool> can_stop_receive{false};
-  std::atomic<td::int64> send_count{1};
-  std::atomic<td::int64> receive_count{0};
-  td::Client client;
-
-  std::mutex request_ids_mutex;
-  std::set<td::uint64> request_ids;
-  request_ids.insert(1);
-  td::thread send_thread([&] {
-    td::uint64 request_id = 2;
-    while (!stop_send.load()) {
-      {
-        std::unique_lock<std::mutex> guard(request_ids_mutex);
-        request_ids.insert(request_id);
-      }
-      client.send({request_id++, td::make_tl_object<td::td_api::testSquareInt>(3)});
-      send_count++;
-    }
-    can_stop_receive = true;
-  });
-
-  td::thread receive_thread([&] {
-    auto max_continue_send = td::Random::fast_bool() ? 0 : 1000;
-    while (true) {
-      auto response = client.receive(10.0);
-      if (response.object == nullptr) {
-        if (!stop_send) {
-          stop_send = true;
-        } else {
-          return;
-        }
-      }
-      if (response.id > 0) {
-        if (!stop_send && response.object->get_id() == td::td_api::error::ID &&
-            static_cast<td::td_api::error &>(*response.object).code_ == 500 &&
-            td::Random::fast(0, max_continue_send) == 0) {
-          stop_send = true;
-        }
-        receive_count++;
-        {
-          std::unique_lock<std::mutex> guard(request_ids_mutex);
-          size_t erased_count = request_ids.erase(response.id);
-          CHECK(erased_count > 0);
-        }
-      }
-      if (can_stop_receive && receive_count == send_count) {
-        break;
-      }
-    }
-  });
-
-  td::usleep_for((td::Random::fast_bool() ? 0 : 1000) * (td::Random::fast_bool() ? 1 : 50));
-  client.send({1, td::make_tl_object<td::td_api::close>()});
-
-  send_thread.join();
-  receive_thread.join();
-  ASSERT_EQ(send_count.load(), receive_count.load());
-  ASSERT_TRUE(request_ids.empty());
-}
-
-TEST(Client, ManagerClose) {
-  std::atomic<bool> stop_send{false};
-  std::atomic<bool> can_stop_receive{false};
-  std::atomic<td::int64> send_count{1};
-  std::atomic<td::int64> receive_count{0};
-  td::ClientManager client_manager;
-  auto client_id = client_manager.create_client_id();
-
-  std::mutex request_ids_mutex;
-  std::set<td::uint64> request_ids;
-  request_ids.insert(1);
-  td::thread send_thread([&] {
-    td::uint64 request_id = 2;
-    while (!stop_send.load()) {
-      {
-        std::unique_lock<std::mutex> guard(request_ids_mutex);
-        request_ids.insert(request_id);
-      }
-      client_manager.send(client_id, request_id++, td::make_tl_object<td::td_api::testSquareInt>(3));
-      send_count++;
-    }
-    can_stop_receive = true;
-  });
-
-  td::thread receive_thread([&] {
-    auto max_continue_send = td::Random::fast_bool() ? 0 : 1000;
-    bool can_stop_send = false;
-    while (true) {
-      auto response = client_manager.receive(10.0);
-      if (response.object == nullptr) {
-        if (!stop_send) {
-          can_stop_send = true;
-        } else {
-          return;
-        }
-      }
-      if (can_stop_send && max_continue_send-- <= 0) {
-        stop_send = true;
-      }
-      if (response.request_id > 0) {
-        receive_count++;
-        {
-          std::unique_lock<std::mutex> guard(request_ids_mutex);
-          size_t erased_count = request_ids.erase(response.request_id);
-          CHECK(erased_count > 0);
-        }
-      }
-      if (can_stop_receive && receive_count == send_count) {
-        break;
-      }
-    }
-  });
-
-  td::usleep_for((td::Random::fast_bool() ? 0 : 1000) * (td::Random::fast_bool() ? 1 : 50));
-  client_manager.send(client_id, 1, td::make_tl_object<td::td_api::close>());
-
-  send_thread.join();
-  receive_thread.join();
-  ASSERT_EQ(send_count.load(), receive_count.load());
-  ASSERT_TRUE(request_ids.empty());
-}
-#endif
-#endif
-
-TEST(Client, ManagerCloseOneThread) {
-  td::ClientManager client_manager;
-
-  td::uint64 request_id = 2;
-  std::map<td::uint64, td::int32> sent_requests;
-  td::uint64 sent_count = 0;
-  td::uint64 receive_count = 0;
-
-  auto send_request = [&](td::int32 client_id, td::int32 expected_error_code) {
-    sent_count++;
-    sent_requests.emplace(request_id, expected_error_code);
-    client_manager.send(client_id, request_id++, td::make_tl_object<td::td_api::testSquareInt>(3));
-  };
-
-  auto receive = [&] {
-    while (receive_count != sent_count) {
-      auto response = client_manager.receive(1.0);
-      if (response.object == nullptr) {
-        continue;
-      }
-      if (response.request_id > 0) {
-        receive_count++;
-        auto it = sent_requests.find(response.request_id);
-        CHECK(it != sent_requests.end());
-        auto expected_error_code = it->second;
-        sent_requests.erase(it);
-
-        if (expected_error_code == 0) {
-          if (response.request_id == 1) {
-            ASSERT_EQ(td::td_api::ok::ID, response.object->get_id());
-          } else {
-            ASSERT_EQ(td::td_api::testInt::ID, response.object->get_id());
-          }
-        } else {
-          ASSERT_EQ(td::td_api::error::ID, response.object->get_id());
-          ASSERT_EQ(expected_error_code, static_cast<td::td_api::error &>(*response.object).code_);
-        }
-      }
-    }
-  };
-
-  for (int t = 0; t < 3; t++) {
-    for (td::int32 i = -5; i <= 0; i++) {
-      send_request(i, 400);
-    }
-
-    receive();
-
-    auto client_id = client_manager.create_client_id();
-
-    for (td::int32 i = -5; i < 5; i++) {
-      send_request(i, i == client_id ? 0 : (i > 0 && i < client_id ? 500 : 400));
-    }
-
-    receive();
-
-    for (int i = 0; i < 10; i++) {
-      send_request(client_id, 0);
-    }
-
-    receive();
-
-    sent_count++;
-    sent_requests.emplace(1, 0);
-    client_manager.send(client_id, 1, td::make_tl_object<td::td_api::close>());
-
-    for (int i = 0; i < 10; i++) {
-      send_request(client_id, 500);
-    }
-
-    receive();
-
-    for (int i = 0; i < 10; i++) {
-      send_request(client_id, 500);
-    }
-
-    receive();
-  }
-
-  ASSERT_TRUE(sent_requests.empty());
-}
-
-TEST(PartsManager, hands) {
-  {
-    td::PartsManager pm;
-    pm.init(0, 100000, false, 10, {0, 1, 2}, false, true).ensure_error();
-    //pm.set_known_prefix(0, false).ensure();
-  }
-  {
-    td::PartsManager pm;
-    pm.init(1, 100000, true, 10, {0, 1, 2}, false, true).ensure_error();
-  }
-}
diff --git a/third-party/td/td/test/tqueue.cpp b/third-party/td/td/test/tqueue.cpp
deleted file mode 100644
index 3a5747428b..0000000000
--- a/third-party/td/td/test/tqueue.cpp
+++ /dev/null
@@ -1,260 +0,0 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2025
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-#include "td/db/binlog/Binlog.h"
-#include "td/db/binlog/BinlogEvent.h"
-#include "td/db/binlog/BinlogHelper.h"
-#include "td/db/TQueue.h"
-
-#include "td/utils/buffer.h"
-#include "td/utils/common.h"
-#include "td/utils/int_types.h"
-#include "td/utils/logging.h"
-#include "td/utils/Random.h"
-#include "td/utils/Slice.h"
-#include "td/utils/SliceBuilder.h"
-#include "td/utils/Span.h"
-#include "td/utils/tests.h"
-#include "td/utils/Time.h"
-
-#include <memory>
-#include <utility>
-
-TEST(TQueue, hands) {
-  td::TQueue::Event events[100];
-  auto events_span = td::MutableSpan<td::TQueue::Event>(events, 100);
-
-  auto tqueue = td::TQueue::create();
-  auto qid = 12;
-  ASSERT_EQ(true, tqueue->get_head(qid).empty());
-  ASSERT_EQ(true, tqueue->get_tail(qid).empty());
-  tqueue->push(qid, "hello", 1, 0, td::TQueue::EventId()).ignore();
-  auto head = tqueue->get_head(qid);
-  auto tail = tqueue->get_tail(qid);
-  ASSERT_EQ(head.next().ok(), tail);
-  ASSERT_EQ(1u, tqueue->get(qid, head, true, 0, events_span).move_as_ok());
-  ASSERT_EQ(1u, tqueue->get(qid, head, true, 0, events_span).move_as_ok());
-  ASSERT_EQ(1u, tqueue->get(qid, tail, false, 0, events_span).move_as_ok());
-  ASSERT_EQ(1u, tqueue->get(qid, head, true, 0, events_span).move_as_ok());
-  ASSERT_EQ(0u, tqueue->get(qid, tail, true, 0, events_span).move_as_ok());
-  ASSERT_EQ(0u, tqueue->get(qid, head, true, 0, events_span).move_as_ok());
-}
-
-class TestTQueue {
- public:
-  using EventId = td::TQueue::EventId;
-
-  static td::CSlice binlog_path() {
-    return td::CSlice("tqueue_binlog");
-  }
-
-  TestTQueue() {
-    baseline_ = td::TQueue::create();
-
-    memory_ = td::TQueue::create();
-    auto memory_storage = td::make_unique<td::TQueueMemoryStorage>();
-    memory_storage_ = memory_storage.get();
-    memory_->set_callback(std::move(memory_storage));
-
-    binlog_ = td::TQueue::create();
-    auto tqueue_binlog = td::make_unique<td::TQueueBinlog<td::Binlog>>();
-    td::Binlog::destroy(binlog_path()).ensure();
-    auto binlog = std::make_shared<td::Binlog>();
-    binlog->init(binlog_path().str(), [&](const td::BinlogEvent &event) { UNREACHABLE(); }).ensure();
-    tqueue_binlog->set_binlog(std::move(binlog));
-    binlog_->set_callback(std::move(tqueue_binlog));
-  }
-
-  TestTQueue(const TestTQueue &) = delete;
-  TestTQueue &operator=(const TestTQueue &) = delete;
-  TestTQueue(TestTQueue &&) = delete;
-  TestTQueue &operator=(TestTQueue &&) = delete;
-
-  ~TestTQueue() {
-    td::Binlog::destroy(binlog_path()).ensure();
-  }
-
-  void restart(td::Random::Xorshift128plus &rnd, td::int32 now) {
-    if (rnd.fast(0, 10) == 0) {
-      baseline_->run_gc(now);
-    }
-
-    memory_->extract_callback().release();
-    auto memory_storage = td::unique_ptr<td::TQueueMemoryStorage>(memory_storage_);
-    memory_ = td::TQueue::create();
-    memory_storage->replay(*memory_);
-    memory_->set_callback(std::move(memory_storage));
-    if (rnd.fast(0, 10) == 0) {
-      memory_->run_gc(now);
-    }
-
-    if (rnd.fast(0, 30) != 0) {
-      return;
-    }
-
-    LOG(INFO) << "Restart binlog";
-    binlog_ = td::TQueue::create();
-    auto tqueue_binlog = td::make_unique<td::TQueueBinlog<td::Binlog>>();
-    auto binlog = std::make_shared<td::Binlog>();
-    binlog
-        ->init(binlog_path().str(),
-               [&](const td::BinlogEvent &event) { tqueue_binlog->replay(event, *binlog_).ignore(); })
-        .ensure();
-    tqueue_binlog->set_binlog(std::move(binlog));
-    binlog_->set_callback(std::move(tqueue_binlog));
-    if (rnd.fast(0, 2) == 0) {
-      binlog_->run_gc(now);
-    }
-  }
-
-  EventId push(td::TQueue::QueueId queue_id, const td::string &data, td::int32 expires_at, EventId new_id = EventId()) {
-    auto a_id = baseline_->push(queue_id, data, expires_at, 0, new_id).move_as_ok();
-    auto b_id = memory_->push(queue_id, data, expires_at, 0, new_id).move_as_ok();
-    auto c_id = binlog_->push(queue_id, data, expires_at, 0, new_id).move_as_ok();
-    ASSERT_EQ(a_id, b_id);
-    ASSERT_EQ(a_id, c_id);
-    return a_id;
-  }
-
-  void check_head_tail(td::TQueue::QueueId qid) {
-    //ASSERT_EQ(baseline_->get_head(qid), memory_->get_head(qid));
-    //ASSERT_EQ(baseline_->get_head(qid), binlog_->get_head(qid));
-    ASSERT_EQ(baseline_->get_tail(qid), memory_->get_tail(qid));
-    ASSERT_EQ(baseline_->get_tail(qid), binlog_->get_tail(qid));
-  }
-
-  void check_get(td::TQueue::QueueId qid, td::Random::Xorshift128plus &rnd, td::int32 now) {
-    td::TQueue::Event a[10];
-    td::MutableSpan<td::TQueue::Event> a_span(a, 10);
-    td::TQueue::Event b[10];
-    td::MutableSpan<td::TQueue::Event> b_span(b, 10);
-    td::TQueue::Event c[10];
-    td::MutableSpan<td::TQueue::Event> c_span(c, 10);
-
-    auto a_from = baseline_->get_head(qid);
-    //auto b_from = memory_->get_head(qid);
-    //auto c_from = binlog_->get_head(qid);
-    //ASSERT_EQ(a_from, b_from);
-    //ASSERT_EQ(a_from, c_from);
-
-    auto tmp = a_from.advance(rnd.fast(-10, 10));
-    if (tmp.is_ok()) {
-      a_from = tmp.move_as_ok();
-    }
-    baseline_->get(qid, a_from, true, now, a_span).move_as_ok();
-    memory_->get(qid, a_from, true, now, b_span).move_as_ok();
-    binlog_->get(qid, a_from, true, now, c_span).move_as_ok();
-    ASSERT_EQ(a_span.size(), b_span.size());
-    ASSERT_EQ(a_span.size(), c_span.size());
-    for (size_t i = 0; i < a_span.size(); i++) {
-      ASSERT_EQ(a_span[i].id, b_span[i].id);
-      ASSERT_EQ(a_span[i].id, c_span[i].id);
-      ASSERT_EQ(a_span[i].data, b_span[i].data);
-      ASSERT_EQ(a_span[i].data, c_span[i].data);
-    }
-  }
-
- private:
-  td::unique_ptr<td::TQueue> baseline_;
-  td::unique_ptr<td::TQueue> memory_;
-  td::unique_ptr<td::TQueue> binlog_;
-  td::TQueueMemoryStorage *memory_storage_{nullptr};
-};
-
-TEST(TQueue, random) {
-  using EventId = td::TQueue::EventId;
-  td::Random::Xorshift128plus rnd(123);
-  auto next_queue_id = [&rnd] {
-    return rnd.fast(1, 10);
-  };
-  auto next_first_id = [&rnd] {
-    if (rnd.fast(0, 3) == 0) {
-      return EventId::from_int32(EventId::MAX_ID - 20).move_as_ok();
-    }
-    return EventId::from_int32(rnd.fast(1000000000, 1500000000)).move_as_ok();
-  };
-
-  TestTQueue q;
-  td::int32 now = 1000;
-  auto push_event = [&] {
-    auto data = PSTRING() << rnd();
-    if (rnd.fast(0, 10000) == 0) {
-      data = td::string(1 << 19, '\0');
-    }
-    q.push(next_queue_id(), data, now + rnd.fast(-10, 10) * 10 + 5, next_first_id());
-  };
-  auto inc_now = [&] {
-    now += 10;
-  };
-  auto check_head_tail = [&] {
-    q.check_head_tail(next_queue_id());
-  };
-  auto restart = [&] {
-    q.restart(rnd, now);
-  };
-  auto get = [&] {
-    q.check_get(next_queue_id(), rnd, now);
-  };
-  td::RandomSteps steps({{push_event, 100}, {check_head_tail, 10}, {get, 40}, {inc_now, 5}, {restart, 1}});
-  for (int i = 0; i < 100000; i++) {
-    steps.step(rnd);
-  }
-}
-
-TEST(TQueue, memory_leak) {
-  return;
-  auto tqueue = td::TQueue::create();
-  auto tqueue_binlog = td::make_unique<td::TQueueBinlog<td::Binlog>>();
-  std::string binlog_path = "test_tqueue.binlog";
-  td::Binlog::destroy(binlog_path).ensure();
-  auto binlog = std::make_shared<td::Binlog>();
-  binlog->init(binlog_path, [&](const td::BinlogEvent &event) { UNREACHABLE(); }).ensure();
-  tqueue_binlog->set_binlog(std::move(binlog));
-  tqueue->set_callback(std::move(tqueue_binlog));
-
-  td::int32 now = 0;
-  std::vector<td::TQueue::EventId> ids;
-  td::Random::Xorshift128plus rnd(123);
-  int i = 0;
-  while (true) {
-    auto id = tqueue->push(1, "a", now + 600000, 0, {}).move_as_ok();
-    ids.push_back(id);
-    if (ids.size() > static_cast<std::size_t>(rnd()) % 100000) {
-      auto it = static_cast<std::size_t>(rnd()) % ids.size();
-      std::swap(ids.back(), ids[it]);
-      tqueue->forget(1, ids.back());
-      ids.pop_back();
-    }
-    now++;
-    if (i++ % 100000 == 0) {
-      LOG(ERROR) << td::BufferAllocator::get_buffer_mem() << " " << tqueue->get_size(1) << " "
-                 << td::BufferAllocator::get_buffer_slice_size();
-    }
-  }
-}
-
-TEST(TQueue, clear) {
-  auto tqueue = td::TQueue::create();
-
-  auto start_time = td::Time::now();
-  td::int32 now = 0;
-  td::vector<td::TQueue::EventId> ids;
-  td::Random::Xorshift128plus rnd(123);
-  for (size_t i = 0; i < 100000; i++) {
-    tqueue->push(1, td::string(td::Random::fast(100, 500), 'a'), now + 600000, 0, {}).ensure();
-  }
-  auto tail_id = tqueue->get_tail(1);
-  auto clear_start_time = td::Time::now();
-  size_t keep_count = td::Random::fast(0, 2);
-  auto deleted_events = tqueue->clear(1, keep_count);
-  auto finish_time = td::Time::now();
-  LOG(INFO) << "Added TQueue events in " << clear_start_time - start_time << " seconds and cleared them in "
-            << finish_time - clear_start_time << " seconds";
-  CHECK(tqueue->get_size(1) == keep_count);
-  CHECK(tqueue->get_head(1).advance(keep_count).ok() == tail_id);
-  CHECK(tqueue->get_tail(1) == tail_id);
-  CHECK(deleted_events.size() == 100000 - keep_count);
-}
diff --git a/third-party/td/td/update_version.sh b/third-party/td/td/update_version.sh
deleted file mode 100755
index a84c79b9fa..0000000000
--- a/third-party/td/td/update_version.sh
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/usr/bin/env bash
-cd $(dirname $0)
-
-COMMIT_FILES="example/cpp/CMakeLists.txt example/uwp/extension.vsixmanifest example/uwp/Telegram.Td.UWP.nuspec example/web/tdweb/package.json example/web/tdweb/package-lock.json README.md td/telegram/OptionManager.cpp"
-
-# check argument '-i' to drop all fixed files list.
-for arg in "$@"; do if [[ "$arg" == "-i" ]]; then COMMIT_FILES=""; break; fi; done
-
-# 'git diff' to ensure that 'CMakeLists.txt' is modified.
-GIT_DIFF=$(git --no-pager diff --unified=0 CMakeLists.txt)
-
-SED_REGEX="project\(TDLib VERSION ([0-9\.]+) LANGUAGES CXX C\)"
-
-OLD_TDLIB_VERSION=$(echo "${GIT_DIFF}" | sed -nr "s/\-$SED_REGEX/\1/p")
-NEW_TDLIB_VERSION=$(echo "${GIT_DIFF}" | sed -nr "s/\+$SED_REGEX/\1/p")
-
-if [ ! -z "${OLD_TDLIB_VERSION}" ] && [ ! -z "${NEW_TDLIB_VERSION}" ] &&
-  [ "${OLD_TDLIB_VERSION}" != "${NEW_TDLIB_VERSION}" ] ; then
-
-  for arg in "$@" ; do
-    if [[ "$arg" == "-i" ]] ; then
-      continue
-    elif [ -e "$arg" ] ; then
-      if [[ "$COMMIT_FILES" == "" ]] ; then
-        COMMIT_FILES="$arg"
-      else
-        COMMIT_FILES="$COMMIT_FILES $arg"
-      fi
-    else
-      echo "$arg: No such file or directory"; exit 1
-    fi
-  done
-
-  if [[ "$COMMIT_FILES" == "" ]] ; then
-    echo "No files to update."; exit 1
-  fi
-
-  # Replace all matches
-  sed --binary -i "s/${OLD_TDLIB_VERSION//./\\.}/${NEW_TDLIB_VERSION}/g" $COMMIT_FILES || exit 1
-
-  git --no-pager diff CMakeLists.txt $COMMIT_FILES
-
-  echo -e "\n\n"
-  read -p "Commit \"Update version to ${NEW_TDLIB_VERSION}.\" (y/n)? " answer
-
-  if [[ "${answer}" == "Y" ]] || [[ "${answer}" == "y" ]] ; then
-    git commit --quiet -n CMakeLists.txt $COMMIT_FILES -m "Update version to ${NEW_TDLIB_VERSION}."; echo
-    git --no-pager log --stat -n 1
-  else
-    # Undo sed changes
-    sed --binary -i "s/${NEW_TDLIB_VERSION//./\\.}/${OLD_TDLIB_VERSION}/g" $COMMIT_FILES || exit 1
-    echo "Aborted."; exit 1
-  fi
-else
-  echo "Couldn't find new TDLib version."
-fi